diff options
124 files changed, 6268 insertions, 1033 deletions
diff --git a/Documentation/networking/nfc.txt b/Documentation/networking/nfc.txt new file mode 100644 index 0000000..b24c29b --- /dev/null +++ b/Documentation/networking/nfc.txt @@ -0,0 +1,128 @@ +Linux NFC subsystem +=================== + +The Near Field Communication (NFC) subsystem is required to standardize the +NFC device drivers development and to create an unified userspace interface. + +This document covers the architecture overview, the device driver interface +description and the userspace interface description. + +Architecture overview +--------------------- + +The NFC subsystem is responsible for: + - NFC adapters management; + - Polling for targets; + - Low-level data exchange; + +The subsystem is divided in some parts. The 'core' is responsible for +providing the device driver interface. On the other side, it is also +responsible for providing an interface to control operations and low-level +data exchange. + +The control operations are available to userspace via generic netlink. + +The low-level data exchange interface is provided by the new socket family +PF_NFC. The NFC_SOCKPROTO_RAW performs raw communication with NFC targets. + + + +--------------------------------------+ + | USER SPACE | + +--------------------------------------+ + ^ ^ + | low-level | control + | data exchange | operations + | | + | v + | +-----------+ + | AF_NFC | netlink | + | socket +-----------+ + | raw ^ + | | + v v + +---------+ +-----------+ + | rawsock | <--------> | core | + +---------+ +-----------+ + ^ + | + v + +-----------+ + | driver | + +-----------+ + +Device Driver Interface +----------------------- + +When registering on the NFC subsystem, the device driver must inform the core +of the set of supported NFC protocols and the set of ops callbacks. The ops +callbacks that must be implemented are the following: + +* start_poll - setup the device to poll for targets +* stop_poll - stop on progress polling operation +* activate_target - select and initialize one of the targets found +* deactivate_target - deselect and deinitialize the selected target +* data_exchange - send data and receive the response (transceive operation) + +Userspace interface +-------------------- + +The userspace interface is divided in control operations and low-level data +exchange operation. + +CONTROL OPERATIONS: + +Generic netlink is used to implement the interface to the control operations. +The operations are composed by commands and events, all listed below: + +* NFC_CMD_GET_DEVICE - get specific device info or dump the device list +* NFC_CMD_START_POLL - setup a specific device to polling for targets +* NFC_CMD_STOP_POLL - stop the polling operation in a specific device +* NFC_CMD_GET_TARGET - dump the list of targets found by a specific device + +* NFC_EVENT_DEVICE_ADDED - reports an NFC device addition +* NFC_EVENT_DEVICE_REMOVED - reports an NFC device removal +* NFC_EVENT_TARGETS_FOUND - reports START_POLL results when 1 or more targets +are found + +The user must call START_POLL to poll for NFC targets, passing the desired NFC +protocols through NFC_ATTR_PROTOCOLS attribute. The device remains in polling +state until it finds any target. However, the user can stop the polling +operation by calling STOP_POLL command. In this case, it will be checked if +the requester of STOP_POLL is the same of START_POLL. + +If the polling operation finds one or more targets, the event TARGETS_FOUND is +sent (including the device id). The user must call GET_TARGET to get the list of +all targets found by such device. Each reply message has target attributes with +relevant information such as the supported NFC protocols. + +All polling operations requested through one netlink socket are stopped when +it's closed. + +LOW-LEVEL DATA EXCHANGE: + +The userspace must use PF_NFC sockets to perform any data communication with +targets. All NFC sockets use AF_NFC: + +struct sockaddr_nfc { + sa_family_t sa_family; + __u32 dev_idx; + __u32 target_idx; + __u32 nfc_protocol; +}; + +To establish a connection with one target, the user must create an +NFC_SOCKPROTO_RAW socket and call the 'connect' syscall with the sockaddr_nfc +struct correctly filled. All information comes from NFC_EVENT_TARGETS_FOUND +netlink event. As a target can support more than one NFC protocol, the user +must inform which protocol it wants to use. + +Internally, 'connect' will result in an activate_target call to the driver. +When the socket is closed, the target is deactivated. + +The data format exchanged through the sockets is NFC protocol dependent. For +instance, when communicating with MIFARE tags, the data exchanged are MIFARE +commands and their responses. + +The first received package is the response to the first sent package and so +on. In order to allow valid "empty" responses, every data received has a NULL +header of 1 byte. diff --git a/drivers/Kconfig b/drivers/Kconfig index 3bb154d..258473c 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -94,8 +94,6 @@ source "drivers/memstick/Kconfig" source "drivers/leds/Kconfig" -source "drivers/nfc/Kconfig" - source "drivers/accessibility/Kconfig" source "drivers/infiniband/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 09f3232..1bc8965 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -122,3 +122,4 @@ obj-y += ieee802154/ obj-y += clk/ obj-$(CONFIG_HWSPINLOCK) += hwspinlock/ +obj-$(CONFIG_NFC) += nfc/ diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index 83e9adf..ae0a02e 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig @@ -27,6 +27,12 @@ config BCMA_HOST_PCI bool "Support for BCMA on PCI-host bus" depends on BCMA_HOST_PCI_POSSIBLE +config BCMA_DRIVER_PCI_HOSTMODE + bool "Driver for PCI core working in hostmode" + depends on BCMA && MIPS + help + PCI core hostmode operation (external PCI bus). + config BCMA_DEBUG bool "BCMA debugging" depends on BCMA diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile index cde0182..a2161cce 100644 --- a/drivers/bcma/Makefile +++ b/drivers/bcma/Makefile @@ -1,6 +1,7 @@ bcma-y += main.o scan.o core.o sprom.o bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o bcma-y += driver_pci.o +bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o obj-$(CONFIG_BCMA) += bcma.o diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index 4228736..e02ff21 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h @@ -28,4 +28,8 @@ extern int __init bcma_host_pci_init(void); extern void __exit bcma_host_pci_exit(void); #endif /* CONFIG_BCMA_HOST_PCI */ +#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE +void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc); +#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ + #endif diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c index b0c19ed..dc6f34a 100644 --- a/drivers/bcma/driver_pci.c +++ b/drivers/bcma/driver_pci.c @@ -157,11 +157,47 @@ static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc) * Init. **************************************************/ -void bcma_core_pci_init(struct bcma_drv_pci *pc) +static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc) { bcma_pcicore_serdes_workaround(pc); } +static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc) +{ + struct bcma_bus *bus = pc->core->bus; + u16 chipid_top; + + chipid_top = (bus->chipinfo.id & 0xFF00); + if (chipid_top != 0x4700 && + chipid_top != 0x5300) + return false; + + if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI) + return false; + +#if 0 + /* TODO: on BCMA we use address from EROM instead of magic formula */ + u32 tmp; + return !mips_busprobe32(tmp, (bus->mmio + + (pc->core->core_index * BCMA_CORE_SIZE))); +#endif + + return true; +} + +void bcma_core_pci_init(struct bcma_drv_pci *pc) +{ + if (bcma_core_pci_is_in_hostmode(pc)) { +#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE + bcma_core_pci_hostmode_init(pc); +#else + pr_err("Driver compiled without support for hostmode PCI\n"); +#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ + } else { + bcma_core_pci_clientmode_init(pc); + } +} + int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core, bool enable) { diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c new file mode 100644 index 0000000..eb332b7 --- /dev/null +++ b/drivers/bcma/driver_pci_host.c @@ -0,0 +1,14 @@ +/* + * Broadcom specific AMBA + * PCI Core in hostmode + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "bcma_private.h" +#include <linux/bcma/bcma.h> + +void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc) +{ + pr_err("No support for PCI core in hostmode yet\n"); +} diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h index 4da01a9..f9a4655 100644 --- a/drivers/net/wireless/ath/carl9170/carl9170.h +++ b/drivers/net/wireless/ath/carl9170/carl9170.h @@ -67,6 +67,8 @@ #define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1) +static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 }; + enum carl9170_rf_init_mode { CARL9170_RFI_NONE, CARL9170_RFI_WARM, @@ -440,7 +442,6 @@ struct ar9170 { enum carl9170_ps_off_override_reasons { PS_OFF_VIF = BIT(0), PS_OFF_BCN = BIT(1), - PS_OFF_5GHZ = BIT(2), }; struct carl9170_ba_stats { diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c index 221957c..39ddea5 100644 --- a/drivers/net/wireless/ath/carl9170/fw.c +++ b/drivers/net/wireless/ath/carl9170/fw.c @@ -237,7 +237,7 @@ static int carl9170_fw(struct ar9170 *ar, const __u8 *data, size_t len) ar->disable_offload = true; } - if (SUPP(CARL9170FW_PSM)) + if (SUPP(CARL9170FW_PSM) && SUPP(CARL9170FW_FIXED_5GHZ_PSM)) ar->hw->flags |= IEEE80211_HW_SUPPORTS_PS; if (!SUPP(CARL9170FW_USB_INIT_FIRMWARE)) { diff --git a/drivers/net/wireless/ath/carl9170/fwcmd.h b/drivers/net/wireless/ath/carl9170/fwcmd.h index 30449d2..0a6dec5 100644 --- a/drivers/net/wireless/ath/carl9170/fwcmd.h +++ b/drivers/net/wireless/ath/carl9170/fwcmd.h @@ -4,7 +4,7 @@ * Firmware command interface definitions * * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> + * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -54,6 +54,7 @@ enum carl9170_cmd_oids { CARL9170_CMD_BCN_CTRL = 0x05, CARL9170_CMD_READ_TSF = 0x06, CARL9170_CMD_RX_FILTER = 0x07, + CARL9170_CMD_WOL = 0x08, /* CAM */ CARL9170_CMD_EKEY = 0x10, @@ -180,6 +181,21 @@ struct carl9170_bcn_ctrl_cmd { #define CARL9170_BCN_CTRL_DRAIN 0 #define CARL9170_BCN_CTRL_CAB_TRIGGER 1 +struct carl9170_wol_cmd { + __le32 flags; + u8 mac[6]; + u8 bssid[6]; + __le32 null_interval; + __le32 free_for_use2; + __le32 mask; + u8 pattern[32]; +} __packed; + +#define CARL9170_WOL_CMD_SIZE 60 + +#define CARL9170_WOL_DISCONNECT 1 +#define CARL9170_WOL_MAGIC_PKT 2 + struct carl9170_cmd_head { union { struct { @@ -203,6 +219,7 @@ struct carl9170_cmd { struct carl9170_write_reg wreg; struct carl9170_rf_init rf_init; struct carl9170_psm psm; + struct carl9170_wol_cmd wol; struct carl9170_bcn_ctrl_cmd bcn_ctrl; struct carl9170_rx_filter_cmd rx_filter; u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN]; diff --git a/drivers/net/wireless/ath/carl9170/fwdesc.h b/drivers/net/wireless/ath/carl9170/fwdesc.h index 9210668..7ba62bb 100644 --- a/drivers/net/wireless/ath/carl9170/fwdesc.h +++ b/drivers/net/wireless/ath/carl9170/fwdesc.h @@ -3,7 +3,7 @@ * * Firmware descriptor format * - * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> + * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -72,6 +72,9 @@ enum carl9170fw_feature_list { /* Wake up on WLAN */ CARL9170FW_WOL, + /* Firmware supports PSM in the 5GHZ Band */ + CARL9170FW_FIXED_5GHZ_PSM, + /* KEEP LAST */ __CARL9170FW_FEATURE_NUM }; @@ -82,6 +85,7 @@ enum carl9170fw_feature_list { #define DBG_MAGIC "DBG\0" #define CHK_MAGIC "CHK\0" #define TXSQ_MAGIC "TXSQ" +#define WOL_MAGIC "WOL\0" #define LAST_MAGIC "LAST" #define CARL9170FW_SET_DAY(d) (((d) - 1) % 31) @@ -104,7 +108,7 @@ struct carl9170fw_desc_head { (sizeof(struct carl9170fw_desc_head)) #define CARL9170FW_OTUS_DESC_MIN_VER 6 -#define CARL9170FW_OTUS_DESC_CUR_VER 6 +#define CARL9170FW_OTUS_DESC_CUR_VER 7 struct carl9170fw_otus_desc { struct carl9170fw_desc_head head; __le32 feature_set; @@ -186,6 +190,16 @@ struct carl9170fw_txsq_desc { #define CARL9170FW_TXSQ_DESC_SIZE \ (sizeof(struct carl9170fw_txsq_desc)) +#define CARL9170FW_WOL_DESC_MIN_VER 1 +#define CARL9170FW_WOL_DESC_CUR_VER 1 +struct carl9170fw_wol_desc { + struct carl9170fw_desc_head head; + + __le32 supported_triggers; /* CARL9170_WOL_ */ +} __packed; +#define CARL9170FW_WOL_DESC_SIZE \ + (sizeof(struct carl9170fw_wol_desc)) + #define CARL9170FW_LAST_DESC_MIN_VER 1 #define CARL9170FW_LAST_DESC_CUR_VER 2 struct carl9170fw_last_desc { diff --git a/drivers/net/wireless/ath/carl9170/hw.h b/drivers/net/wireless/ath/carl9170/hw.h index 4e30762..261f893 100644 --- a/drivers/net/wireless/ath/carl9170/hw.h +++ b/drivers/net/wireless/ath/carl9170/hw.h @@ -4,7 +4,7 @@ * Register map, hardware-specific definitions * * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> + * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -357,7 +357,18 @@ #define AR9170_MAC_REG_DMA_WLAN_STATUS (AR9170_MAC_REG_BASE + 0xd38) #define AR9170_MAC_REG_DMA_STATUS (AR9170_MAC_REG_BASE + 0xd3c) - +#define AR9170_MAC_REG_DMA_TXQ_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd40) +#define AR9170_MAC_REG_DMA_TXQ0_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd40) +#define AR9170_MAC_REG_DMA_TXQ1_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd44) +#define AR9170_MAC_REG_DMA_TXQ2_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd48) +#define AR9170_MAC_REG_DMA_TXQ3_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd4c) +#define AR9170_MAC_REG_DMA_TXQ4_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd50) +#define AR9170_MAC_REG_DMA_TXQ0Q1_LEN (AR9170_MAC_REG_BASE + 0xd54) +#define AR9170_MAC_REG_DMA_TXQ2Q3_LEN (AR9170_MAC_REG_BASE + 0xd58) +#define AR9170_MAC_REG_DMA_TXQ4_LEN (AR9170_MAC_REG_BASE + 0xd5c) + +#define AR9170_MAC_REG_DMA_TXQX_LAST_ADDR (AR9170_MAC_REG_BASE + 0xd74) +#define AR9170_MAC_REG_DMA_TXQX_FAIL_ADDR (AR9170_MAC_REG_BASE + 0xd78) #define AR9170_MAC_REG_TXRX_MPI (AR9170_MAC_REG_BASE + 0xd7c) #define AR9170_MAC_TXRX_MPI_TX_MPI_MASK 0x0000000f #define AR9170_MAC_TXRX_MPI_TX_TO_MASK 0x0000fff0 diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c index 54d093c..d2b9f12 100644 --- a/drivers/net/wireless/ath/carl9170/main.c +++ b/drivers/net/wireless/ath/carl9170/main.c @@ -345,11 +345,11 @@ static int carl9170_op_start(struct ieee80211_hw *hw) carl9170_zap_queues(ar); /* reset QoS defaults */ - CARL9170_FILL_QUEUE(ar->edcf[0], 3, 15, 1023, 0); /* BEST EFFORT */ - CARL9170_FILL_QUEUE(ar->edcf[1], 2, 7, 15, 94); /* VIDEO */ - CARL9170_FILL_QUEUE(ar->edcf[2], 2, 3, 7, 47); /* VOICE */ - CARL9170_FILL_QUEUE(ar->edcf[3], 7, 15, 1023, 0); /* BACKGROUND */ - CARL9170_FILL_QUEUE(ar->edcf[4], 2, 3, 7, 0); /* SPECIAL */ + CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VO], 2, 3, 7, 47); + CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_VI], 2, 7, 15, 94); + CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BE], 3, 15, 1023, 0); + CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_BK], 7, 15, 1023, 0); + CARL9170_FILL_QUEUE(ar->edcf[AR9170_TXQ_SPECIAL], 2, 3, 7, 0); ar->current_factor = ar->current_density = -1; /* "The first key is unique." */ @@ -1577,6 +1577,7 @@ void *carl9170_alloc(size_t priv_size) IEEE80211_HW_REPORTS_TX_ACK_STATUS | IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_PS_NULLFUNC_STACK | + IEEE80211_HW_NEED_DTIM_PERIOD | IEEE80211_HW_SIGNAL_DBM; if (!modparam_noht) { diff --git a/drivers/net/wireless/ath/carl9170/phy.c b/drivers/net/wireless/ath/carl9170/phy.c index b6ae0e1..da1ab96 100644 --- a/drivers/net/wireless/ath/carl9170/phy.c +++ b/drivers/net/wireless/ath/carl9170/phy.c @@ -1783,12 +1783,6 @@ int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, } } - /* FIXME: PSM does not work in 5GHz Band */ - if (channel->band == IEEE80211_BAND_5GHZ) - ar->ps.off_override |= PS_OFF_5GHZ; - else - ar->ps.off_override &= ~PS_OFF_5GHZ; - ar->channel = channel; ar->ht_settings = new_ht; return 0; diff --git a/drivers/net/wireless/ath/carl9170/version.h b/drivers/net/wireless/ath/carl9170/version.h index 15095c0..6470377 100644 --- a/drivers/net/wireless/ath/carl9170/version.h +++ b/drivers/net/wireless/ath/carl9170/version.h @@ -1,7 +1,7 @@ #ifndef __CARL9170_SHARED_VERSION_H #define __CARL9170_SHARED_VERSION_H #define CARL9170FW_VERSION_YEAR 11 -#define CARL9170FW_VERSION_MONTH 1 -#define CARL9170FW_VERSION_DAY 22 -#define CARL9170FW_VERSION_GIT "1.9.2" +#define CARL9170FW_VERSION_MONTH 6 +#define CARL9170FW_VERSION_DAY 30 +#define CARL9170FW_VERSION_GIT "1.9.4" #endif /* __CARL9170_SHARED_VERSION_H */ diff --git a/drivers/net/wireless/ath/carl9170/wlan.h b/drivers/net/wireless/ath/carl9170/wlan.h index 9e1324b..ea17995 100644 --- a/drivers/net/wireless/ath/carl9170/wlan.h +++ b/drivers/net/wireless/ath/carl9170/wlan.h @@ -4,7 +4,7 @@ * RX/TX meta descriptor format * * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> + * Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -278,7 +278,7 @@ struct ar9170_tx_frame { struct carl9170_tx_superframe { struct carl9170_tx_superdesc s; struct ar9170_tx_frame f; -} __packed; +} __packed __aligned(4); #endif /* __CARL9170FW__ */ @@ -328,7 +328,7 @@ struct _carl9170_tx_superframe { struct _carl9170_tx_superdesc s; struct _ar9170_tx_hwdesc f; u8 frame_data[0]; -} __packed; +} __packed __aligned(4); #define CARL9170_TX_SUPERDESC_LEN 24 #define AR9170_TX_HWDESC_LEN 8 @@ -404,16 +404,6 @@ static inline u8 ar9170_get_decrypt_type(struct ar9170_rx_macstatus *t) (t->DAidx & 0xc0) >> 6; } -enum ar9170_txq { - AR9170_TXQ_BE, - - AR9170_TXQ_VI, - AR9170_TXQ_VO, - AR9170_TXQ_BK, - - __AR9170_NUM_TXQ, -}; - /* * This is an workaround for several undocumented bugs. * Don't mess with the QoS/AC <-> HW Queue map, if you don't @@ -431,7 +421,14 @@ enum ar9170_txq { * result, this makes the device pretty much useless * for any serious 802.11n setup. */ -static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 2, 1, 0, 3 }; +enum ar9170_txq { + AR9170_TXQ_BK = 0, /* TXQ0 */ + AR9170_TXQ_BE, /* TXQ1 */ + AR9170_TXQ_VI, /* TXQ2 */ + AR9170_TXQ_VO, /* TXQ3 */ + + __AR9170_NUM_TXQ, +}; #define AR9170_TXQ_DEPTH 32 diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index d02cf83..7a09a46 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1600,6 +1600,7 @@ void b43_dma_rx(struct b43_dmaring *ring) dma_rx(ring, &slot); update_max_used_slots(ring, ++used_slots); } + wmb(); ops->set_current_rxslot(ring, slot); ring->current_slot = slot; } diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index 4430775..3774dd0 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -287,7 +287,7 @@ static const char *command_types[] = { "unused", /* HOST_INTERRUPT_COALESCING */ "undefined", "CARD_DISABLE_PHY_OFF", - "MSDU_TX_RATES" "undefined", + "MSDU_TX_RATES", "undefined", "SET_STATION_STAT_BITS", "CLEAR_STATIONS_STAT_BITS", diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 9a56ce5..1915039 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -14,6 +14,7 @@ iwlagn-objs += iwl-6000.o iwlagn-objs += iwl-1000.o iwlagn-objs += iwl-2000.o iwlagn-objs += iwl-pci.o +iwlagn-objs += iwl-trans.o iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index e57fad9..cf1449d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -138,7 +138,6 @@ static int iwl1000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -197,7 +196,6 @@ static struct iwl_lib_ops iwl1000_lib = { static const struct iwl_ops iwl1000_ops = { .lib = &iwl1000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index 64ed1f2..a401113c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -50,11 +50,13 @@ #define IWL2030_UCODE_API_MAX 5 #define IWL2000_UCODE_API_MAX 5 #define IWL105_UCODE_API_MAX 5 +#define IWL135_UCODE_API_MAX 5 /* Lowest firmware API version supported */ #define IWL2030_UCODE_API_MIN 5 #define IWL2000_UCODE_API_MIN 5 #define IWL105_UCODE_API_MIN 5 +#define IWL135_UCODE_API_MIN 5 #define IWL2030_FW_PRE "iwlwifi-2030-" #define IWL2030_MODULE_FIRMWARE(api) IWL2030_FW_PRE __stringify(api) ".ucode" @@ -65,6 +67,9 @@ #define IWL105_FW_PRE "iwlwifi-105-" #define IWL105_MODULE_FIRMWARE(api) IWL105_FW_PRE __stringify(api) ".ucode" +#define IWL135_FW_PRE "iwlwifi-135-" +#define IWL135_MODULE_FIRMWARE(api) IWL135_FW_PRE #api ".ucode" + static void iwl2000_set_ct_threshold(struct iwl_priv *priv) { /* want Celsius */ @@ -131,7 +136,6 @@ static int iwl2000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -193,25 +197,21 @@ static struct iwl_lib_ops iwl2000_lib = { static const struct iwl_ops iwl2000_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl2030_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl105_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl135_ops = { .lib = &iwl2000_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; @@ -344,9 +344,9 @@ struct iwl_cfg iwl105_bgn_cfg = { }; #define IWL_DEVICE_135 \ - .fw_name_pre = IWL105_FW_PRE, \ - .ucode_api_max = IWL105_UCODE_API_MAX, \ - .ucode_api_min = IWL105_UCODE_API_MIN, \ + .fw_name_pre = IWL135_FW_PRE, \ + .ucode_api_max = IWL135_UCODE_API_MAX, \ + .ucode_api_min = IWL135_UCODE_API_MIN, \ .eeprom_ver = EEPROM_2000_EEPROM_VERSION, \ .eeprom_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .ops = &iwl135_ops, \ @@ -359,12 +359,12 @@ struct iwl_cfg iwl105_bgn_cfg = { .rx_with_siso_diversity = true \ struct iwl_cfg iwl135_bg_cfg = { - .name = "105 Series 1x1 BG/BT", + .name = "135 Series 1x1 BG/BT", IWL_DEVICE_135, }; struct iwl_cfg iwl135_bgn_cfg = { - .name = "105 Series 1x1 BGN/BT", + .name = "135 Series 1x1 BGN/BT", IWL_DEVICE_135, .ht_params = &iwl2000_ht_params, }; @@ -372,3 +372,4 @@ struct iwl_cfg iwl135_bgn_cfg = { MODULE_FIRMWARE(IWL2000_MODULE_FIRMWARE(IWL2000_UCODE_API_MAX)); MODULE_FIRMWARE(IWL2030_MODULE_FIRMWARE(IWL2030_UCODE_API_MAX)); MODULE_FIRMWARE(IWL105_MODULE_FIRMWARE(IWL105_UCODE_API_MAX)); +MODULE_FIRMWARE(IWL135_MODULE_FIRMWARE(IWL135_UCODE_API_MAX)); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 269dfdb..c55cec8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -169,7 +169,6 @@ static int iwl5000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); @@ -214,7 +213,6 @@ static int iwl5150_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); priv->hw_params.rx_chains_num = num_of_ant(priv->cfg->valid_rx_ant); @@ -379,13 +377,11 @@ static struct iwl_lib_ops iwl5150_lib = { static const struct iwl_ops iwl5000_ops = { .lib = &iwl5000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl5150_ops = { .lib = &iwl5150_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index f1c1db7..965d010 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -157,7 +157,6 @@ static int iwl6000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ); - priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR; priv->hw_params.tx_chains_num = num_of_ant(priv->cfg->valid_tx_ant); if (priv->cfg->rx_with_siso_diversity) @@ -328,27 +327,23 @@ static struct iwl_nic_ops iwl6150_nic_ops = { static const struct iwl_ops iwl6000_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, }; static const struct iwl_ops iwl6050_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, .nic = &iwl6050_nic_ops, }; static const struct iwl_ops iwl6150_ops = { .lib = &iwl6000_lib, - .hcmd = &iwlagn_hcmd, .utils = &iwlagn_hcmd_utils, .nic = &iwl6150_nic_ops, }; static const struct iwl_ops iwl6030_ops = { .lib = &iwl6030_lib, - .hcmd = &iwlagn_bt_hcmd, .utils = &iwlagn_hcmd_utils, }; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c index ba7ed91..ce7d4b5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-hcmd.c @@ -205,7 +205,7 @@ static int iwlagn_calc_rssi(struct iwl_priv *priv, return max_rssi - agc - IWLAGN_RSSI_OFFSET; } -static int iwlagn_set_pan_params(struct iwl_priv *priv) +int iwlagn_set_pan_params(struct iwl_priv *priv) { struct iwl_wipan_params_cmd cmd; struct iwl_rxon_context *ctx_bss, *ctx_pan; @@ -297,20 +297,6 @@ static int iwlagn_set_pan_params(struct iwl_priv *priv) return ret; } -struct iwl_hcmd_ops iwlagn_hcmd = { - .set_rxon_chain = iwlagn_set_rxon_chain, - .set_tx_ant = iwlagn_send_tx_ant_config, - .send_bt_config = iwl_send_bt_config, - .set_pan_params = iwlagn_set_pan_params, -}; - -struct iwl_hcmd_ops iwlagn_bt_hcmd = { - .set_rxon_chain = iwlagn_set_rxon_chain, - .set_tx_ant = iwlagn_send_tx_ant_config, - .send_bt_config = iwlagn_send_advance_bt_config, - .set_pan_params = iwlagn_set_pan_params, -}; - struct iwl_hcmd_utils_ops iwlagn_hcmd_utils = { .build_addsta_hcmd = iwlagn_build_addsta_hcmd, .gain_computation = iwlagn_gain_computation, diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index efdab65..90d366e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -628,38 +628,6 @@ struct iwl_mod_params iwlagn_mod_params = { /* the rest are 0 by default */ }; -void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - unsigned long flags; - int i; - spin_lock_irqsave(&rxq->lock, flags); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { - /* In the reset function, these buffers may have been allocated - * to an SKB, so we need to unmap and free potential storage */ - if (rxq->pool[i].page != NULL) { - dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - DMA_FROM_DEVICE); - __iwl_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - } - - for (i = 0; i < RX_QUEUE_SIZE; i++) - rxq->queue[i] = NULL; - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - spin_unlock_irqrestore(&rxq->lock, flags); -} - int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq) { u32 rb_size; @@ -731,7 +699,6 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) { unsigned long flags; struct iwl_rx_queue *rxq = &priv->rxq; - int ret; /* nic_init */ spin_lock_irqsave(&priv->lock, flags); @@ -747,14 +714,7 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) priv->cfg->ops->lib->apm_ops.config(priv); /* Allocate the RX queue, or reset if it is already allocated */ - if (!rxq->bd) { - ret = iwl_rx_queue_alloc(priv); - if (ret) { - IWL_ERR(priv, "Unable to initialize Rx queue\n"); - return -ENOMEM; - } - } else - iwlagn_rx_queue_reset(priv, rxq); + priv->trans.ops->rx_init(priv); iwlagn_rx_replenish(priv); @@ -768,12 +728,8 @@ int iwlagn_hw_nic_init(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); /* Allocate or reset and init all Tx and Command queues */ - if (!priv->txq) { - ret = iwlagn_txq_ctx_alloc(priv); - if (ret) - return ret; - } else - iwlagn_txq_ctx_reset(priv); + if (priv->trans.ops->tx_init(priv)) + return -ENOMEM; if (priv->cfg->base_params->shadow_reg_enable) { /* enable shadow regs in HW */ @@ -949,33 +905,6 @@ void iwlagn_rx_replenish_now(struct iwl_priv *priv) iwlagn_rx_queue_restock(priv); } -/* Assumes that the skb field of the buffers in 'pool' is kept accurate. - * If an SKB has been detached, the POOL needs to have its SKB set to NULL - * This free routine walks the list of POOL entries and if SKB is set to - * non NULL it is unmapped and freed - */ -void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) -{ - int i; - for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { - if (rxq->pool[i].page != NULL) { - dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma, - PAGE_SIZE << priv->hw_params.rx_page_order, - DMA_FROM_DEVICE); - __iwl_free_pages(priv, rxq->pool[i].page); - rxq->pool[i].page = NULL; - } - } - - dma_free_coherent(priv->bus.dev, 4 * RX_QUEUE_SIZE, - rxq->bd, rxq->bd_dma); - dma_free_coherent(priv->bus.dev, - sizeof(struct iwl_rb_status), - rxq->rb_stts, rxq->rb_stts_dma); - rxq->bd = NULL; - rxq->rb_stts = NULL; -} - int iwlagn_rxq_stop(struct iwl_priv *priv) { @@ -1437,17 +1366,14 @@ int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) /* set scan bit here for PAN params */ set_bit(STATUS_SCAN_HW, &priv->status); - if (priv->cfg->ops->hcmd->set_pan_params) { - ret = priv->cfg->ops->hcmd->set_pan_params(priv); - if (ret) - return ret; - } + ret = iwlagn_set_pan_params(priv); + if (ret) + return ret; ret = iwl_send_cmd_sync(priv, &cmd); if (ret) { clear_bit(STATUS_SCAN_HW, &priv->status); - if (priv->cfg->ops->hcmd->set_pan_params) - priv->cfg->ops->hcmd->set_pan_params(priv); + iwlagn_set_pan_params(priv); } return ret; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c index 8fa43d4..c6bb73a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c @@ -436,11 +436,9 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) if (ret) return ret; - if (priv->cfg->ops->hcmd->set_pan_params) { - ret = priv->cfg->ops->hcmd->set_pan_params(priv); - if (ret) - return ret; - } + ret = iwlagn_set_pan_params(priv); + if (ret) + return ret; if (new_assoc) return iwlagn_rxon_connect(priv, ctx); @@ -483,9 +481,8 @@ int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed) * set up the SM PS mode to OFF if an HT channel is * configured. */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - for_each_context(priv, ctx) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + for_each_context(priv, ctx) + iwlagn_set_rxon_chain(priv, ctx); } if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { @@ -741,8 +738,7 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, iwl_set_rxon_ht(priv, &priv->current_ht_config); } - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK; @@ -821,6 +817,5 @@ void iwlagn_post_scan(struct iwl_priv *priv) if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging))) iwlagn_commit_rxon(priv, ctx); - if (priv->cfg->ops->hcmd->set_pan_params) - priv->cfg->ops->hcmd->set_pan_params(priv); + iwlagn_set_pan_params(priv); } diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index d0ac090..c05a8d9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -878,96 +878,6 @@ void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv) } /** - * iwlagn_txq_ctx_alloc - allocate TX queue context - * Allocate all Tx DMA structures and initialize them - * - * @param priv - * @return error code - */ -int iwlagn_txq_ctx_alloc(struct iwl_priv *priv) -{ - int ret; - int txq_id, slots_num; - unsigned long flags; - - /* Free all tx/cmd queues and keep-warm buffer */ - iwlagn_hw_txq_ctx_free(priv); - - ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls, - priv->hw_params.scd_bc_tbls_size); - if (ret) { - IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); - goto error_bc_tbls; - } - /* Alloc keep-warm buffer */ - ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); - if (ret) { - IWL_ERR(priv, "Keep Warm allocation failed\n"); - goto error_kw; - } - - /* allocate tx queue structure */ - ret = iwl_alloc_txq_mem(priv); - if (ret) - goto error; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwlagn_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Alloc and init all Tx queues, including the command queue (#4/#9) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = (txq_id == priv->cmd_queue) ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - ret = iwl_tx_queue_init(priv, &priv->txq[txq_id], slots_num, - txq_id); - if (ret) { - IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); - goto error; - } - } - - return ret; - - error: - iwlagn_hw_txq_ctx_free(priv); - iwlagn_free_dma_ptr(priv, &priv->kw); - error_kw: - iwlagn_free_dma_ptr(priv, &priv->scd_bc_tbls); - error_bc_tbls: - return ret; -} - -void iwlagn_txq_ctx_reset(struct iwl_priv *priv) -{ - int txq_id, slots_num; - unsigned long flags; - - spin_lock_irqsave(&priv->lock, flags); - - /* Turn off all Tx DMA fifos */ - iwlagn_txq_set_sched(priv, 0); - - /* Tell NIC where to find the "keep warm" buffer */ - iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); - - spin_unlock_irqrestore(&priv->lock, flags); - - /* Alloc and init all Tx queues, including the command queue (#4) */ - for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { - slots_num = txq_id == priv->cmd_queue ? - TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; - iwl_tx_queue_reset(priv, &priv->txq[txq_id], slots_num, txq_id); - } -} - -/** * iwlagn_txq_ctx_stop - Stop all Tx DMA channels */ void iwlagn_txq_ctx_stop(struct iwl_priv *priv) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c index de8277e..2043c8b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c @@ -386,11 +386,13 @@ static int iwlagn_alive_notify(struct iwl_priv *priv) spin_lock_irqsave(&priv->lock, flags); priv->scd_base_addr = iwl_read_prph(priv, IWLAGN_SCD_SRAM_BASE_ADDR); - a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_DATA_OFFSET; - for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_BITMAP_OFFSET; + a = priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND; + /* reset conext data memory */ + for (; a < priv->scd_base_addr + IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND; a += 4) iwl_write_targ_mem(priv, a, 0); - for (; a < priv->scd_base_addr + IWLAGN_SCD_TRANSLATE_TBL_OFFSET; + /* reset tx status memory */ + for (; a < priv->scd_base_addr + IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND; a += 4) iwl_write_targ_mem(priv, a, 0); for (; a < priv->scd_base_addr + diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index e2f6b2a..7e6c463 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -56,7 +56,7 @@ #include "iwl-agn-calib.h" #include "iwl-agn.h" #include "iwl-pci.h" - +#include "iwl-trans.h" /****************************************************************************** * @@ -90,12 +90,10 @@ void iwl_update_chain_flags(struct iwl_priv *priv) { struct iwl_rxon_context *ctx; - if (priv->cfg->ops->hcmd->set_rxon_chain) { - for_each_context(priv, ctx) { - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - if (ctx->active.rx_chain != ctx->staging.rx_chain) - iwlagn_commit_rxon(priv, ctx); - } + for_each_context(priv, ctx) { + iwlagn_set_rxon_chain(priv, ctx); + if (ctx->active.rx_chain != ctx->staging.rx_chain) + iwlagn_commit_rxon(priv, ctx); } } @@ -260,7 +258,7 @@ static void iwl_bg_bt_runtime_config(struct work_struct *work) /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) return; - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); } static void iwl_bg_bt_full_concurrency(struct work_struct *work) @@ -287,12 +285,11 @@ static void iwl_bg_bt_full_concurrency(struct work_struct *work) * to avoid 3-wire collisions */ for_each_context(priv, ctx) { - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); iwlagn_commit_rxon(priv, ctx); } - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); out: mutex_unlock(&priv->mutex); } @@ -2017,7 +2014,7 @@ int iwl_alive_start(struct iwl_priv *priv) priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_send_advance_bt_config(priv); priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; iwlagn_send_prio_tbl(priv); @@ -2030,7 +2027,13 @@ int iwl_alive_start(struct iwl_priv *priv) BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; + } else { + /* + * default is 2-wire BT coexexistence support + */ + iwl_send_bt_config(priv); } + if (priv->hw_params.calib_rt_cfg) iwlagn_send_calib_cfg_rt(priv, priv->hw_params.calib_rt_cfg); @@ -2039,8 +2042,7 @@ int iwl_alive_start(struct iwl_priv *priv) priv->active_rate = IWL_RATES_MASK; /* Configure Tx antenna selection based on H/W config */ - if (priv->cfg->ops->hcmd->set_tx_ant) - priv->cfg->ops->hcmd->set_tx_ant(priv, priv->cfg->valid_tx_ant); + iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); if (iwl_is_associated_ctx(ctx)) { struct iwl_rxon_cmd *active_rxon = @@ -2054,16 +2056,7 @@ int iwl_alive_start(struct iwl_priv *priv) for_each_context(priv, tmp) iwl_connection_init_rx_config(priv, tmp); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); - } - - if (!priv->cfg->bt_params || (priv->cfg->bt_params && - !priv->cfg->bt_params->advanced_bt_coexist)) { - /* - * default is 2-wire BT coexexistence support - */ - priv->cfg->ops->hcmd->send_bt_config(priv); + iwlagn_set_rxon_chain(priv, ctx); } iwl_reset_run_time_calib(priv); @@ -3288,9 +3281,7 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->rx_statistics_jiffies = jiffies; /* Choose which receivers/antennas to use */ - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, - &priv->contexts[IWL_RXON_CTX_BSS]); + iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); iwl_init_scan_params(priv); @@ -3517,6 +3508,8 @@ int iwl_probe(void *bus_specific, struct iwl_bus_ops *bus_ops, priv->bus.ops->set_drv_data(&priv->bus, priv); priv->bus.dev = priv->bus.ops->get_dev(&priv->bus); + iwl_trans_register(&priv->trans); + /* At this point both hw and priv are allocated. */ SET_IEEE80211_DEV(hw, priv->bus.dev); @@ -3716,8 +3709,7 @@ void __devexit iwl_remove(struct iwl_priv * priv) iwl_dealloc_ucode(priv); - if (priv->rxq.bd) - iwlagn_rx_queue_free(priv, &priv->rxq); + priv->trans.ops->rx_free(priv); iwlagn_hw_txq_ctx_free(priv); iwl_eeprom_free(priv); @@ -3820,6 +3812,10 @@ MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); +module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO); +MODULE_PARM_DESC(wd_disable, + "Disable stuck queue watchdog timer (default: 0 [enabled])"); + /* * set bt_coex_active to true, uCode will do kill/defer * every time the priority line is asserted (BT is sending signals on the diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h index dcdf225..4351151 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn.h @@ -182,7 +182,6 @@ void iwlagn_temperature(struct iwl_priv *priv); u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv); const u8 *iwlagn_eeprom_query_addr(const struct iwl_priv *priv, size_t offset); -void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_hw_nic_init(struct iwl_priv *priv); int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv); @@ -194,7 +193,6 @@ void iwlagn_rx_queue_restock(struct iwl_priv *priv); void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority); void iwlagn_rx_replenish(struct iwl_priv *priv); void iwlagn_rx_replenish_now(struct iwl_priv *priv); -void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq); int iwlagn_rxq_stop(struct iwl_priv *priv); int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); void iwl_setup_rx_handlers(struct iwl_priv *priv); @@ -220,8 +218,6 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb); int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index); void iwlagn_hw_txq_ctx_free(struct iwl_priv *priv); -int iwlagn_txq_ctx_alloc(struct iwl_priv *priv); -void iwlagn_txq_ctx_reset(struct iwl_priv *priv); void iwlagn_txq_ctx_stop(struct iwl_priv *priv); static inline u32 iwl_tx_status_to_mac80211(u32 status) @@ -260,6 +256,7 @@ int iwlagn_manage_ibss_station(struct iwl_priv *priv, /* hcmd */ int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant); int iwlagn_send_beacon_cmd(struct iwl_priv *priv); +int iwlagn_set_pan_params(struct iwl_priv *priv); /* bt coex */ void iwlagn_send_advance_bt_config(struct iwl_priv *priv); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 7f16d12..f91e306 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -585,8 +585,7 @@ static void _iwl_set_rxon_ht(struct iwl_priv *priv, rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY; } - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X " "extension channel offset 0x%x\n", @@ -1216,8 +1215,7 @@ static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { iwl_connection_init_rx_config(priv, ctx); - if (priv->cfg->ops->hcmd->set_rxon_chain) - priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx); + iwlagn_set_rxon_chain(priv, ctx); return iwlagn_commit_rxon(priv, ctx); } @@ -1372,20 +1370,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, } -int iwl_alloc_txq_mem(struct iwl_priv *priv) -{ - if (!priv->txq) - priv->txq = kzalloc( - sizeof(struct iwl_tx_queue) * - priv->cfg->base_params->num_of_queues, - GFP_KERNEL); - if (!priv->txq) { - IWL_ERR(priv, "Not enough memory for txq\n"); - return -ENOMEM; - } - return 0; -} - void iwl_free_txq_mem(struct iwl_priv *priv) { kfree(priv->txq); @@ -1853,7 +1837,7 @@ void iwl_setup_watchdog(struct iwl_priv *priv) { unsigned int timeout = priv->cfg->base_params->wd_timeout; - if (timeout) + if (timeout && !iwlagn_mod_params.wd_disable) mod_timer(&priv->watchdog, jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout))); else diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index f881678..6c21de9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -80,14 +80,6 @@ struct iwl_cmd; #define IWL_CMD(x) case x: return #x -struct iwl_hcmd_ops { - void (*set_rxon_chain)(struct iwl_priv *priv, - struct iwl_rxon_context *ctx); - int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant); - void (*send_bt_config)(struct iwl_priv *priv); - int (*set_pan_params)(struct iwl_priv *priv); -}; - struct iwl_hcmd_utils_ops { u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data); void (*gain_computation)(struct iwl_priv *priv, @@ -146,7 +138,6 @@ struct iwl_nic_ops { struct iwl_ops { const struct iwl_lib_ops *lib; - const struct iwl_hcmd_ops *hcmd; const struct iwl_hcmd_utils_ops *utils; const struct iwl_nic_ops *nic; }; @@ -160,6 +151,7 @@ struct iwl_mod_params { int restart_fw; /* def: 1 = restart firmware */ bool plcp_check; /* def: true = enable plcp health check */ bool ack_check; /* def: false = disable ack health check */ + bool wd_disable; /* def: false = enable stuck queue check */ bool bt_coex_active; /* def: true = enable bt coex */ int led_mode; /* def: 0 = system default */ bool no_sleep_autoadjust; /* def: true = disable autoadjust */ @@ -336,7 +328,6 @@ void iwl_mac_remove_interface(struct ieee80211_hw *hw, int iwl_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum nl80211_iftype newtype, bool newp2p); -int iwl_alloc_txq_mem(struct iwl_priv *priv); void iwl_free_txq_mem(struct iwl_priv *priv); #ifdef CONFIG_IWLWIFI_DEBUGFS @@ -382,7 +373,6 @@ static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx, ******************************************************/ void iwl_cmd_queue_free(struct iwl_priv *priv); void iwl_cmd_queue_unmap(struct iwl_priv *priv); -int iwl_rx_queue_alloc(struct iwl_priv *priv); void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q); int iwl_rx_queue_space(const struct iwl_rx_queue *q); @@ -396,11 +386,9 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success); * TX ******************************************************/ void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq); -int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); -void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id); void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id); +int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, + int count, int slots_num, u32 id); void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id); void iwl_setup_watchdog(struct iwl_priv *priv); /***************************************************** diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index f1b1128..c6560e9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -666,7 +666,6 @@ struct iwl_hw_params { u16 max_rxq_size; u16 max_rxq_log; u32 rx_page_order; - u32 rx_wrt_ptr_reg; u8 max_stations; u8 ht40_channel; u8 max_beacon_itrvl; /* in 1024 ms */ @@ -1228,6 +1227,25 @@ struct iwl_bus { unsigned int irq; }; +struct iwl_trans; + +/** + * struct iwl_trans_ops - transport specific operations + + * @rx_init: inits the rx memory, allocate it if needed + * @rx_free: frees the rx memory + * @tx_init:inits the tx memory, allocate if needed + */ +struct iwl_trans_ops { + int (*rx_init)(struct iwl_priv *priv); + void (*rx_free)(struct iwl_priv *priv); + int (*tx_init)(struct iwl_priv *priv); +}; + +struct iwl_trans { + const struct iwl_trans_ops *ops; +}; + struct iwl_priv { /* ieee device used by generic ieee processing code */ @@ -1296,13 +1314,13 @@ struct iwl_priv { struct mutex mutex; struct iwl_bus bus; /* bus specific data */ + struct iwl_trans trans; /* microcode/device supports multiple contexts */ u8 valid_contexts; /* command queue number */ u8 cmd_queue; - u8 last_sync_cmd_id; /* max number of station keys */ u8 sta_key_max_num; diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c index e3e5fb6..107b38e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c +++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c @@ -171,6 +171,8 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) int cmd_idx; int ret; + lockdep_assert_held(&priv->mutex); + if (WARN_ON(cmd->flags & CMD_ASYNC)) return -EINVAL; @@ -181,16 +183,7 @@ int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd) IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n", get_cmd_string(cmd->id)); - if (test_and_set_bit(STATUS_HCMD_ACTIVE, &priv->status)) { - IWL_ERR(priv, "STATUS_HCMD_ACTIVE already set while sending %s" - ". Previous SYNC cmdn is %s\n", - get_cmd_string(cmd->id), - get_cmd_string(priv->last_sync_cmd_id)); - WARN_ON(1); - } else { - priv->last_sync_cmd_id = cmd->id; - } - + set_bit(STATUS_HCMD_ACTIVE, &priv->status); IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n", get_cmd_string(cmd->id)); diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index 3b5844b..7491134 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -67,6 +67,7 @@ #include "iwl-agn.h" #include "iwl-core.h" #include "iwl-io.h" +#include "iwl-trans.h" /* PCI registers */ #define PCI_CFG_RETRY_TIMEOUT 0x041 @@ -93,7 +94,7 @@ static u16 iwl_pciexp_link_ctrl(struct iwl_bus *bus) u16 pci_lnk_ctl; struct pci_dev *pci_dev = IWL_BUS_GET_PCI_DEV(bus); - pos = pci_find_capability(pci_dev, PCI_CAP_ID_EXP); + pos = pci_pcie_cap(pci_dev); pci_read_config_word(pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl); return pci_lnk_ctl; } diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index f00d188..1cc0ed1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -168,6 +168,7 @@ * the scheduler (especially for queue #4/#9, the command queue, otherwise * the driver can't issue commands!): */ +#define SCD_MEM_LOWER_BOUND (0x0000) /** * Max Tx window size is the max number of contiguous TFDs that the scheduler @@ -197,15 +198,23 @@ #define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) #define IWLAGN_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) -#define IWLAGN_SCD_CONTEXT_DATA_OFFSET (0x600) -#define IWLAGN_SCD_TX_STTS_BITMAP_OFFSET (0x7B1) -#define IWLAGN_SCD_TRANSLATE_TBL_OFFSET (0x7E0) +/* Context Data */ +#define IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600) +#define IWLAGN_SCD_CONTEXT_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) + +/* Tx status */ +#define IWLAGN_SCD_TX_STTS_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x6A0) +#define IWLAGN_SCD_TX_STTS_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) + +/* Translation Data */ +#define IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x7E0) +#define IWLAGN_SCD_TRANS_TBL_MEM_UPPER_BOUND (SCD_MEM_LOWER_BOUND + 0x808) #define IWLAGN_SCD_CONTEXT_QUEUE_OFFSET(x)\ - (IWLAGN_SCD_CONTEXT_DATA_OFFSET + ((x) * 8)) + (IWLAGN_SCD_CONTEXT_MEM_LOWER_BOUND + ((x) * 8)) #define IWLAGN_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \ - ((IWLAGN_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffc) + ((IWLAGN_SCD_TRANS_TBL_MEM_LOWER_BOUND + ((x) * 2)) & 0xfffc) #define IWLAGN_SCD_QUEUECHAIN_SEL_ALL(priv) \ (((1<<(priv)->hw_params.max_txq_num) - 1) &\ diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c index 3efa706..87148bb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-rx.c +++ b/drivers/net/wireless/iwlwifi/iwl-rx.c @@ -134,7 +134,6 @@ int iwl_rx_queue_space(const struct iwl_rx_queue *q) void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q) { unsigned long flags; - u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg; u32 reg; spin_lock_irqsave(&q->lock, flags); @@ -146,7 +145,7 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q /* shadow register enabled */ /* Device expects a multiple of 8 */ q->write_actual = (q->write & ~0x7); - iwl_write32(priv, rx_wrt_ptr_reg, q->write_actual); + iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); } else { /* If power-saving is in use, make sure device is awake */ if (test_bit(STATUS_POWER_PMI, &priv->status)) { @@ -162,14 +161,14 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q } q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, rx_wrt_ptr_reg, + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); /* Else device is assumed to be awake */ } else { /* Device expects a multiple of 8 */ q->write_actual = (q->write & ~0x7); - iwl_write_direct32(priv, rx_wrt_ptr_reg, + iwl_write_direct32(priv, FH_RSCSR_CHNL0_WPTR, q->write_actual); } } @@ -179,46 +178,6 @@ void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q spin_unlock_irqrestore(&q->lock, flags); } -int iwl_rx_queue_alloc(struct iwl_priv *priv) -{ - struct iwl_rx_queue *rxq = &priv->rxq; - struct device *dev = priv->bus.dev; - int i; - - spin_lock_init(&rxq->lock); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); - - /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */ - rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma, - GFP_KERNEL); - if (!rxq->bd) - goto err_bd; - - rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status), - &rxq->rb_stts_dma, GFP_KERNEL); - if (!rxq->rb_stts) - goto err_rb; - - /* Fill the rx_used queue with _all_ of the Rx buffers */ - for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); - - /* Set us so that we have processed and used all buffers, but have - * not restocked the Rx queue with fresh buffers */ - rxq->read = rxq->write = 0; - rxq->write_actual = 0; - rxq->free_count = 0; - rxq->need_update = 0; - return 0; - -err_rb: - dma_free_coherent(dev, 4 * RX_QUEUE_SIZE, rxq->bd, - rxq->bd_dma); -err_bd: - return -ENOMEM; -} - /****************************************************************************** * * Generic RX handler implementations diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.h b/drivers/net/wireless/iwlwifi/iwl-testmode.h index 160911a..d825188 100644 --- a/drivers/net/wireless/iwlwifi/iwl-testmode.h +++ b/drivers/net/wireless/iwlwifi/iwl-testmode.h @@ -66,116 +66,144 @@ #include <linux/types.h> -/* Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and +/* + * Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and * from and kernel space to user space(IWL_TM_CMD_ID_DEV2APP_XX). - * The command ID is carried with IWL_TM_ATTR_COMMAND. There are three types of - * of command from user space and two types of command from kernel space. - * See below. + * The command ID is carried with IWL_TM_ATTR_COMMAND. + * + * @IWL_TM_CMD_APP2DEV_UCODE: + * commands from user application to the uCode, + * the actual uCode host command ID is carried with + * IWL_TM_ATTR_UCODE_CMD_ID + * + * @IWL_TM_CMD_APP2DEV_REG_READ32: + * @IWL_TM_CMD_APP2DEV_REG_WRITE32: + * @IWL_TM_CMD_APP2DEV_REG_WRITE8: + * commands from user applicaiton to access register + * + * @IWL_TM_CMD_APP2DEV_GET_DEVICENAME: retrieve device name + * @IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: load initial uCode image + * @IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: perform calibration + * @IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: load runtime uCode image + * @IWL_TM_CMD_APP2DEV_GET_EEPROM: request EEPROM data + * @IWL_TM_CMD_APP2DEV_FIXRATE_REQ: set fix MCS + * commands fom user space for pure driver level operations + * + * @IWL_TM_CMD_APP2DEV_BEGIN_TRACE: + * @IWL_TM_CMD_APP2DEV_END_TRACE: + * @IWL_TM_CMD_APP2DEV_READ_TRACE: + * commands fom user space for uCode trace operations + * + * @IWL_TM_CMD_DEV2APP_SYNC_RSP: + * commands from kernel space to carry the synchronous response + * to user application + * @IWL_TM_CMD_DEV2APP_UCODE_RX_PKT: + * commands from kernel space to multicast the spontaneous messages + * to user application + * @IWL_TM_CMD_DEV2APP_EEPROM_RSP: + * commands from kernel space to carry the eeprom response + * to user application */ enum iwl_tm_cmd_t { - /* commands from user application to the uCode, - * the actual uCode host command ID is carried with - * IWL_TM_ATTR_UCODE_CMD_ID */ - IWL_TM_CMD_APP2DEV_UCODE = 1, - - /* commands from user applicaiton to access register */ - IWL_TM_CMD_APP2DEV_REG_READ32, - IWL_TM_CMD_APP2DEV_REG_WRITE32, - IWL_TM_CMD_APP2DEV_REG_WRITE8, - - /* commands fom user space for pure driver level operations */ - IWL_TM_CMD_APP2DEV_GET_DEVICENAME, - IWL_TM_CMD_APP2DEV_LOAD_INIT_FW, - IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB, - IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW, - IWL_TM_CMD_APP2DEV_GET_EEPROM, - IWL_TM_CMD_APP2DEV_FIXRATE_REQ, - /* if there is other new command for the driver layer operation, - * append them here */ - - /* commands fom user space for uCode trace operations */ - IWL_TM_CMD_APP2DEV_BEGIN_TRACE, - IWL_TM_CMD_APP2DEV_END_TRACE, - IWL_TM_CMD_APP2DEV_READ_TRACE, - - /* commands from kernel space to carry the synchronous response - * to user application */ - IWL_TM_CMD_DEV2APP_SYNC_RSP, - - /* commands from kernel space to multicast the spontaneous messages - * to user application */ - IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, - - /* commands from kernel space to carry the eeprom response - * to user application */ - IWL_TM_CMD_DEV2APP_EEPROM_RSP, - - IWL_TM_CMD_MAX, + IWL_TM_CMD_APP2DEV_UCODE = 1, + IWL_TM_CMD_APP2DEV_REG_READ32 = 2, + IWL_TM_CMD_APP2DEV_REG_WRITE32 = 3, + IWL_TM_CMD_APP2DEV_REG_WRITE8 = 4, + IWL_TM_CMD_APP2DEV_GET_DEVICENAME = 5, + IWL_TM_CMD_APP2DEV_LOAD_INIT_FW = 6, + IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB = 7, + IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW = 8, + IWL_TM_CMD_APP2DEV_GET_EEPROM = 9, + IWL_TM_CMD_APP2DEV_FIXRATE_REQ = 10, + IWL_TM_CMD_APP2DEV_BEGIN_TRACE = 11, + IWL_TM_CMD_APP2DEV_END_TRACE = 12, + IWL_TM_CMD_APP2DEV_READ_TRACE = 13, + IWL_TM_CMD_DEV2APP_SYNC_RSP = 14, + IWL_TM_CMD_DEV2APP_UCODE_RX_PKT = 15, + IWL_TM_CMD_DEV2APP_EEPROM_RSP = 16, + IWL_TM_CMD_MAX = 17, }; +/* + * Atrribute filed in testmode command + * See enum iwl_tm_cmd_t. + * + * @IWL_TM_ATTR_NOT_APPLICABLE: + * The attribute is not applicable or invalid + * @IWL_TM_ATTR_COMMAND: + * From user space to kernel space: + * the command either destines to ucode, driver, or register; + * From kernel space to user space: + * the command either carries synchronous response, + * or the spontaneous message multicast from the device; + * + * @IWL_TM_ATTR_UCODE_CMD_ID: + * @IWL_TM_ATTR_UCODE_CMD_DATA: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE, + * The mandatory fields are : + * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID; + * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands; + * The optional fields are: + * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload + * to the ucode + * + * @IWL_TM_ATTR_REG_OFFSET: + * @IWL_TM_ATTR_REG_VALUE8: + * @IWL_TM_ATTR_REG_VALUE32: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX, + * The mandatory fields are: + * IWL_TM_ATTR_REG_OFFSET for the offset of the target register; + * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value + * + * @IWL_TM_ATTR_SYNC_RSP: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP, + * The mandatory fields are: + * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user + * application command + * + * @IWL_TM_ATTR_UCODE_RX_PKT: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, + * The mandatory fields are: + * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user + * application + * + * @IWL_TM_ATTR_EEPROM: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM, + * The mandatory fields are: + * IWL_TM_ATTR_EEPROM for the data content responging to the user + * application + * + * @IWL_TM_ATTR_TRACE_ADDR: + * @IWL_TM_ATTR_TRACE_SIZE: + * @IWL_TM_ATTR_TRACE_DUMP: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE, + * The mandatory fields are: + * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address + * IWL_TM_ATTR_MEM_TRACE_SIZE for the trace buffer size + * IWL_TM_ATTR_MEM_TRACE_DUMP for the trace dump + * + * @IWL_TM_ATTR_FIXRATE: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ, + * The mandatory fields are: + * IWL_TM_ATTR_FIXRATE for the fixed rate + * + */ enum iwl_tm_attr_t { - IWL_TM_ATTR_NOT_APPLICABLE = 0, - - /* From user space to kernel space: - * the command either destines to ucode, driver, or register; - * See enum iwl_tm_cmd_t. - * - * From kernel space to user space: - * the command either carries synchronous response, - * or the spontaneous message multicast from the device; - * See enum iwl_tm_cmd_t. */ - IWL_TM_ATTR_COMMAND, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE, - * The mandatory fields are : - * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID; - * IWL_TM_ATTR_COMMAND_FLAG for the flags of the commands; - * The optional fields are: - * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload - * to the ucode */ - IWL_TM_ATTR_UCODE_CMD_ID, - IWL_TM_ATTR_UCODE_CMD_DATA, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX, - * The mandatory fields are: - * IWL_TM_ATTR_REG_OFFSET for the offset of the target register; - * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value */ - IWL_TM_ATTR_REG_OFFSET, - IWL_TM_ATTR_REG_VALUE8, - IWL_TM_ATTR_REG_VALUE32, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP, - * The mandatory fields are: - * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user - * application command */ - IWL_TM_ATTR_SYNC_RSP, - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, - * The mandatory fields are: - * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user - * application */ - IWL_TM_ATTR_UCODE_RX_PKT, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM, - * The mandatory fields are: - * IWL_TM_ATTR_EEPROM for the data content responging to the user - * application */ - IWL_TM_ATTR_EEPROM, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE, - * The mandatory fields are: - * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address - */ - IWL_TM_ATTR_TRACE_ADDR, - IWL_TM_ATTR_TRACE_SIZE, - IWL_TM_ATTR_TRACE_DUMP, - - /* When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ, - * The mandatory fields are: - * IWL_TM_ATTR_FIXRATE for the fixed rate - */ - IWL_TM_ATTR_FIXRATE, - - IWL_TM_ATTR_MAX, + IWL_TM_ATTR_NOT_APPLICABLE = 0, + IWL_TM_ATTR_COMMAND = 1, + IWL_TM_ATTR_UCODE_CMD_ID = 2, + IWL_TM_ATTR_UCODE_CMD_DATA = 3, + IWL_TM_ATTR_REG_OFFSET = 4, + IWL_TM_ATTR_REG_VALUE8 = 5, + IWL_TM_ATTR_REG_VALUE32 = 6, + IWL_TM_ATTR_SYNC_RSP = 7, + IWL_TM_ATTR_UCODE_RX_PKT = 8, + IWL_TM_ATTR_EEPROM = 9, + IWL_TM_ATTR_TRACE_ADDR = 10, + IWL_TM_ATTR_TRACE_SIZE = 11, + IWL_TM_ATTR_TRACE_DUMP = 12, + IWL_TM_ATTR_FIXRATE = 13, + IWL_TM_ATTR_MAX = 14, }; /* uCode trace buffer */ diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.c b/drivers/net/wireless/iwlwifi/iwl-trans.c new file mode 100644 index 0000000..7b7b97d --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans.c @@ -0,0 +1,423 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include "iwl-dev.h" +#include "iwl-trans.h" +#include "iwl-core.h" +#include "iwl-helpers.h" +/*TODO remove uneeded includes when the transport layer tx_free will be here */ +#include "iwl-agn.h" + +static int iwl_trans_rx_alloc(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + struct device *dev = priv->bus.dev; + + memset(&priv->rxq, 0, sizeof(priv->rxq)); + + spin_lock_init(&rxq->lock); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + if (WARN_ON(rxq->bd || rxq->rb_stts)) + return -EINVAL; + + /* Allocate the circular buffer of Read Buffer Descriptors (RBDs) */ + rxq->bd = dma_alloc_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE, + &rxq->bd_dma, GFP_KERNEL); + if (!rxq->bd) + goto err_bd; + memset(rxq->bd, 0, sizeof(__le32) * RX_QUEUE_SIZE); + + /*Allocate the driver's pointer to receive buffer status */ + rxq->rb_stts = dma_alloc_coherent(dev, sizeof(*rxq->rb_stts), + &rxq->rb_stts_dma, GFP_KERNEL); + if (!rxq->rb_stts) + goto err_rb_stts; + memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts)); + + return 0; + +err_rb_stts: + dma_free_coherent(dev, sizeof(__le32) * RX_QUEUE_SIZE, + rxq->bd, rxq->bd_dma); + memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma)); + rxq->bd = NULL; +err_bd: + return -ENOMEM; +} + +static void iwl_trans_rxq_free_rx_bufs(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + int i; + + /* Fill the rx_used queue with _all_ of the Rx buffers */ + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { + /* In the reset function, these buffers may have been allocated + * to an SKB, so we need to unmap and free potential storage */ + if (rxq->pool[i].page != NULL) { + dma_unmap_page(priv->bus.dev, rxq->pool[i].page_dma, + PAGE_SIZE << priv->hw_params.rx_page_order, + DMA_FROM_DEVICE); + __iwl_free_pages(priv, rxq->pool[i].page); + rxq->pool[i].page = NULL; + } + list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + } +} + +static int iwl_trans_rx_init(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + int i, err; + unsigned long flags; + + if (!rxq->bd) { + err = iwl_trans_rx_alloc(priv); + if (err) + return err; + } + + spin_lock_irqsave(&rxq->lock, flags); + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + + iwl_trans_rxq_free_rx_bufs(priv); + + for (i = 0; i < RX_QUEUE_SIZE; i++) + rxq->queue[i] = NULL; + + /* Set us so that we have processed and used all buffers, but have + * not restocked the Rx queue with fresh buffers */ + rxq->read = rxq->write = 0; + rxq->write_actual = 0; + rxq->free_count = 0; + spin_unlock_irqrestore(&rxq->lock, flags); + + return 0; +} + +static void iwl_trans_rx_free(struct iwl_priv *priv) +{ + struct iwl_rx_queue *rxq = &priv->rxq; + unsigned long flags; + + /*if rxq->bd is NULL, it means that nothing has been allocated, + * exit now */ + if (!rxq->bd) { + IWL_DEBUG_INFO(priv, "Free NULL rx context\n"); + return; + } + + spin_lock_irqsave(&rxq->lock, flags); + iwl_trans_rxq_free_rx_bufs(priv); + spin_unlock_irqrestore(&rxq->lock, flags); + + dma_free_coherent(priv->bus.dev, sizeof(__le32) * RX_QUEUE_SIZE, + rxq->bd, rxq->bd_dma); + memset(&rxq->bd_dma, 0, sizeof(rxq->bd_dma)); + rxq->bd = NULL; + + if (rxq->rb_stts) + dma_free_coherent(priv->bus.dev, + sizeof(struct iwl_rb_status), + rxq->rb_stts, rxq->rb_stts_dma); + else + IWL_DEBUG_INFO(priv, "Free rxq->rb_stts which is NULL\n"); + memset(&rxq->rb_stts_dma, 0, sizeof(rxq->rb_stts_dma)); + rxq->rb_stts = NULL; +} + +/* TODO:remove this code duplication */ +static inline int iwlagn_alloc_dma_ptr(struct iwl_priv *priv, + struct iwl_dma_ptr *ptr, size_t size) +{ + if (WARN_ON(ptr->addr)) + return -EINVAL; + + ptr->addr = dma_alloc_coherent(priv->bus.dev, size, + &ptr->dma, GFP_KERNEL); + if (!ptr->addr) + return -ENOMEM; + ptr->size = size; + return 0; +} + +static int iwl_trans_txq_alloc(struct iwl_priv *priv, struct iwl_tx_queue *txq, + int slots_num, u32 txq_id) +{ + size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; + int i; + + if (WARN_ON(txq->meta || txq->cmd || txq->txb || txq->tfds)) + return -EINVAL; + + txq->meta = kzalloc(sizeof(txq->meta[0]) * slots_num, + GFP_KERNEL); + txq->cmd = kzalloc(sizeof(txq->cmd[0]) * slots_num, + GFP_KERNEL); + + if (!txq->meta || !txq->cmd) + goto error; + + for (i = 0; i < slots_num; i++) { + txq->cmd[i] = kmalloc(sizeof(struct iwl_device_cmd), + GFP_KERNEL); + if (!txq->cmd[i]) + goto error; + } + + /* Alloc driver data array and TFD circular buffer */ + /* Driver private data, only for Tx (not command) queues, + * not shared with device. */ + if (txq_id != priv->cmd_queue) { + txq->txb = kzalloc(sizeof(txq->txb[0]) * + TFD_QUEUE_SIZE_MAX, GFP_KERNEL); + if (!txq->txb) { + IWL_ERR(priv, "kmalloc for auxiliary BD " + "structures failed\n"); + goto error; + } + } else { + txq->txb = NULL; + } + + /* Circular buffer of transmit frame descriptors (TFDs), + * shared with device */ + txq->tfds = dma_alloc_coherent(priv->bus.dev, tfd_sz, &txq->q.dma_addr, + GFP_KERNEL); + if (!txq->tfds) { + IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); + goto error; + } + txq->q.id = txq_id; + + return 0; +error: + kfree(txq->txb); + txq->txb = NULL; + /* since txq->cmd has been zeroed, + * all non allocated cmd[i] will be NULL */ + if (txq->cmd) + for (i = 0; i < slots_num; i++) + kfree(txq->cmd[i]); + kfree(txq->meta); + kfree(txq->cmd); + txq->meta = NULL; + txq->cmd = NULL; + + return -ENOMEM; + +} + +static int iwl_trans_txq_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, + int slots_num, u32 txq_id) +{ + int ret; + + txq->need_update = 0; + memset(txq->meta, 0, sizeof(txq->meta[0]) * slots_num); + + /* + * For the default queues 0-3, set up the swq_id + * already -- all others need to get one later + * (if they need one at all). + */ + if (txq_id < 4) + iwl_set_swq_id(txq, txq_id, txq_id); + + /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise + * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ + BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); + + /* Initialize queue's high/low-water marks, and head/tail indexes */ + ret = iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, + txq_id); + if (ret) + return ret; + + /* + * Tell nic where to find circular buffer of Tx Frame Descriptors for + * given Tx queue, and enable the DMA channel used for that queue. + * Circular buffer (TFD queue in DRAM) physical base address */ + iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), + txq->q.dma_addr >> 8); + + return 0; +} + +/** + * iwl_trans_tx_alloc - allocate TX context + * Allocate all Tx DMA structures and initialize them + * + * @param priv + * @return error code + */ +static int iwl_trans_tx_alloc(struct iwl_priv *priv) +{ + int ret; + int txq_id, slots_num; + + /*It is not allowed to alloc twice, so warn when this happens. + * We cannot rely on the previous allocation, so free and fail */ + if (WARN_ON(priv->txq)) { + ret = -EINVAL; + goto error; + } + + ret = iwlagn_alloc_dma_ptr(priv, &priv->scd_bc_tbls, + priv->hw_params.scd_bc_tbls_size); + if (ret) { + IWL_ERR(priv, "Scheduler BC Table allocation failed\n"); + goto error; + } + + /* Alloc keep-warm buffer */ + ret = iwlagn_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE); + if (ret) { + IWL_ERR(priv, "Keep Warm allocation failed\n"); + goto error; + } + + priv->txq = kzalloc(sizeof(struct iwl_tx_queue) * + priv->cfg->base_params->num_of_queues, GFP_KERNEL); + if (!priv->txq) { + IWL_ERR(priv, "Not enough memory for txq\n"); + ret = ENOMEM; + goto error; + } + + /* Alloc and init all Tx queues, including the command queue (#4/#9) */ + for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { + slots_num = (txq_id == priv->cmd_queue) ? + TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + ret = iwl_trans_txq_alloc(priv, &priv->txq[txq_id], slots_num, + txq_id); + if (ret) { + IWL_ERR(priv, "Tx %d queue alloc failed\n", txq_id); + goto error; + } + } + + return 0; + +error: + iwlagn_hw_txq_ctx_free(priv); + + return ret; +} +static int iwl_trans_tx_init(struct iwl_priv *priv) +{ + int ret; + int txq_id, slots_num; + unsigned long flags; + bool alloc = false; + + if (!priv->txq) { + ret = iwl_trans_tx_alloc(priv); + if (ret) + goto error; + alloc = true; + } + + spin_lock_irqsave(&priv->lock, flags); + + /* Turn off all Tx DMA fifos */ + iwl_write_prph(priv, IWLAGN_SCD_TXFACT, 0); + + /* Tell NIC where to find the "keep warm" buffer */ + iwl_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4); + + spin_unlock_irqrestore(&priv->lock, flags); + + /* Alloc and init all Tx queues, including the command queue (#4/#9) */ + for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) { + slots_num = (txq_id == priv->cmd_queue) ? + TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS; + ret = iwl_trans_txq_init(priv, &priv->txq[txq_id], slots_num, + txq_id); + if (ret) { + IWL_ERR(priv, "Tx %d queue init failed\n", txq_id); + goto error; + } + } + + return 0; +error: + /*Upon error, free only if we allocated something */ + if (alloc) + iwlagn_hw_txq_ctx_free(priv); + return ret; +} + +static const struct iwl_trans_ops trans_ops = { + .rx_init = iwl_trans_rx_init, + .rx_free = iwl_trans_rx_free, + + .tx_init = iwl_trans_tx_init, +}; + +void iwl_trans_register(struct iwl_trans *trans) +{ + trans->ops = &trans_ops; +} diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h new file mode 100644 index 0000000..bec494c --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -0,0 +1,64 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +void iwl_trans_register(struct iwl_trans *trans); diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c index e72d227..db5abaa 100644 --- a/drivers/net/wireless/iwlwifi/iwl-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-tx.c @@ -220,24 +220,6 @@ int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv, return 0; } -/* - * Tell nic where to find circular buffer of Tx Frame Descriptors for - * given Tx queue, and enable the DMA channel used for that queue. - * - * supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA - * channels supported in hardware. - */ -static int iwlagn_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq) -{ - int txq_id = txq->q.id; - - /* Circular buffer (TFD queue in DRAM) physical base address */ - iwl_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id), - txq->q.dma_addr >> 8); - - return 0; -} - /** * iwl_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's */ @@ -392,11 +374,10 @@ int iwl_queue_space(const struct iwl_queue *q) return s; } - /** * iwl_queue_init - Initialize queue's high/low-water and read/write indexes */ -static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, +int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, int count, int slots_num, u32 id) { q->n_bd = count; @@ -426,124 +407,6 @@ static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q, return 0; } -/** - * iwl_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue - */ -static int iwl_tx_queue_alloc(struct iwl_priv *priv, - struct iwl_tx_queue *txq, u32 id) -{ - struct device *dev = priv->bus.dev; - size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX; - - /* Driver private data, only for Tx (not command) queues, - * not shared with device. */ - if (id != priv->cmd_queue) { - txq->txb = kzalloc(sizeof(txq->txb[0]) * - TFD_QUEUE_SIZE_MAX, GFP_KERNEL); - if (!txq->txb) { - IWL_ERR(priv, "kmalloc for auxiliary BD " - "structures failed\n"); - goto error; - } - } else { - txq->txb = NULL; - } - - /* Circular buffer of transmit frame descriptors (TFDs), - * shared with device */ - txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, - GFP_KERNEL); - if (!txq->tfds) { - IWL_ERR(priv, "dma_alloc_coherent(%zd) failed\n", tfd_sz); - goto error; - } - txq->q.id = id; - - return 0; - - error: - kfree(txq->txb); - txq->txb = NULL; - - return -ENOMEM; -} - -/** - * iwl_tx_queue_init - Allocate and initialize one tx/cmd queue - */ -int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - int i, len; - int ret; - - txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * slots_num, - GFP_KERNEL); - txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * slots_num, - GFP_KERNEL); - - if (!txq->meta || !txq->cmd) - goto out_free_arrays; - - len = sizeof(struct iwl_device_cmd); - for (i = 0; i < slots_num; i++) { - txq->cmd[i] = kmalloc(len, GFP_KERNEL); - if (!txq->cmd[i]) - goto err; - } - - /* Alloc driver data array and TFD circular buffer */ - ret = iwl_tx_queue_alloc(priv, txq, txq_id); - if (ret) - goto err; - - txq->need_update = 0; - - /* - * For the default queues 0-3, set up the swq_id - * already -- all others need to get one later - * (if they need one at all). - */ - if (txq_id < 4) - iwl_set_swq_id(txq, txq_id, txq_id); - - /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise - * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ - BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); - - /* Initialize queue's high/low-water marks, and head/tail indexes */ - ret = iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); - if (ret) - return ret; - - /* Tell device where to find queue */ - iwlagn_tx_queue_init(priv, txq); - - return 0; -err: - for (i = 0; i < slots_num; i++) - kfree(txq->cmd[i]); -out_free_arrays: - kfree(txq->meta); - kfree(txq->cmd); - - return -ENOMEM; -} - -void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq, - int slots_num, u32 txq_id) -{ - memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * slots_num); - - txq->need_update = 0; - - /* Initialize queue's high/low-water marks, and head/tail indexes */ - iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id); - - /* Tell device where to find queue */ - iwlagn_tx_queue_init(priv, txq); -} - /*************** HOST COMMAND QUEUE FUNCTIONS *****/ /** diff --git a/drivers/net/wireless/mwifiex/sdio.h b/drivers/net/wireless/mwifiex/sdio.h index c925376..524f78f 100644 --- a/drivers/net/wireless/mwifiex/sdio.h +++ b/drivers/net/wireless/mwifiex/sdio.h @@ -54,10 +54,10 @@ #define SDIO_MP_AGGR_DEF_PKT_LIMIT 8 -#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (4096) /* 4K */ +#define SDIO_MP_TX_AGGR_DEF_BUF_SIZE (8192) /* 8K */ /* Multi port RX aggregation buffer size */ -#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (4096) /* 4K */ +#define SDIO_MP_RX_AGGR_DEF_BUF_SIZE (16384) /* 16K */ /* Misc. Config Register : Auto Re-enable interrupts */ #define AUTO_RE_ENABLE_INT BIT(4) diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 937f9e8..76bcc354 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -1723,6 +1723,7 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = { .set_antenna = rt2x00mac_set_antenna, .get_antenna = rt2x00mac_get_antenna, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = { diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index d27d7b8..c288d95 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -2016,6 +2016,7 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = { .set_antenna = rt2x00mac_set_antenna, .get_antenna = rt2x00mac_get_antenna, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = { diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index 15237c2..53c5f87 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -1827,6 +1827,7 @@ static const struct ieee80211_ops rt2500usb_mac80211_ops = { .set_antenna = rt2x00mac_set_antenna, .get_antenna = rt2x00mac_get_antenna, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = { diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 9ccc537..ebc17ad 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -1031,6 +1031,7 @@ static const struct ieee80211_ops rt2800pci_mac80211_ops = { .flush = rt2x00mac_flush, .get_survey = rt2800_get_survey, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2800_ops rt2800pci_rt2800_ops = { @@ -1160,6 +1161,7 @@ static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = { #endif #ifdef CONFIG_RT2800PCI_RT53XX { PCI_DEVICE(0x1814, 0x5390) }, + { PCI_DEVICE(0x1814, 0x539f) }, #endif { 0, } }; diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 6e92298..59e7779 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -757,6 +757,7 @@ static const struct ieee80211_ops rt2800usb_mac80211_ops = { .flush = rt2x00mac_flush, .get_survey = rt2800_get_survey, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2800_ops rt2800usb_rt2800_ops = { @@ -1020,6 +1021,7 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x0df6, 0x0048) }, { USB_DEVICE(0x0df6, 0x0051) }, { USB_DEVICE(0x0df6, 0x005f) }, + { USB_DEVICE(0x0df6, 0x0060) }, /* SMC */ { USB_DEVICE(0x083a, 0x6618) }, { USB_DEVICE(0x083a, 0x7511) }, @@ -1076,6 +1078,7 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x148f, 0x3572) }, /* Sitecom */ { USB_DEVICE(0x0df6, 0x0041) }, + { USB_DEVICE(0x0df6, 0x0062) }, /* Toshiba */ { USB_DEVICE(0x0930, 0x0a07) }, /* Zinwell */ @@ -1174,8 +1177,6 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x0df6, 0x004a) }, { USB_DEVICE(0x0df6, 0x004d) }, { USB_DEVICE(0x0df6, 0x0053) }, - { USB_DEVICE(0x0df6, 0x0060) }, - { USB_DEVICE(0x0df6, 0x0062) }, /* SMC */ { USB_DEVICE(0x083a, 0xa512) }, { USB_DEVICE(0x083a, 0xc522) }, diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 4efaf886..f82bfeb 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -1277,6 +1277,7 @@ int rt2x00mac_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant); int rt2x00mac_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant); void rt2x00mac_get_ringparam(struct ieee80211_hw *hw, u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); +bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw); /* * Driver allocation handlers. diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c index 1bb9d46..1ca4c7f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00crypto.c +++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c @@ -45,11 +45,11 @@ enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key) } } -void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry, +void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc) { - struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_key_conf *hw_key = tx_info->control.hw_key; if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !hw_key) diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h index 322cc4f..15cdc7e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00lib.h +++ b/drivers/net/wireless/rt2x00/rt2x00lib.h @@ -336,7 +336,8 @@ static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, */ #ifdef CONFIG_RT2X00_LIB_CRYPTO enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key); -void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry, +void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc); unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 93bec14..8efab39 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -818,3 +818,17 @@ void rt2x00mac_get_ringparam(struct ieee80211_hw *hw, *rx_max = rt2x00dev->rx->limit; } EXPORT_SYMBOL_GPL(rt2x00mac_get_ringparam); + +bool rt2x00mac_tx_frames_pending(struct ieee80211_hw *hw) +{ + struct rt2x00_dev *rt2x00dev = hw->priv; + struct data_queue *queue; + + tx_queue_for_each(rt2x00dev, queue) { + if (!rt2x00queue_empty(queue)) + return true; + } + + return false; +} +EXPORT_SYMBOL_GPL(rt2x00mac_tx_frames_pending); diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index c7fc9de..29edb9f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -200,11 +200,12 @@ void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length) skb_pull(skb, l2pad); } -static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry, +static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc) { - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif); if (!(tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)) @@ -212,7 +213,7 @@ static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry, __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags); - if (!test_bit(REQUIRE_SW_SEQNO, &entry->queue->rt2x00dev->cap_flags)) + if (!test_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags)) return; /* @@ -237,12 +238,12 @@ static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry, } -static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, +static void rt2x00queue_create_tx_descriptor_plcp(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc, const struct rt2x00_rate *hwrate) { - struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0]; unsigned int data_length; unsigned int duration; @@ -259,8 +260,8 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, txdesc->u.plcp.ifs = IFS_SIFS; /* Data length + CRC + Crypto overhead (IV/EIV/ICV/MIC) */ - data_length = entry->skb->len + 4; - data_length += rt2x00crypto_tx_overhead(rt2x00dev, entry->skb); + data_length = skb->len + 4; + data_length += rt2x00crypto_tx_overhead(rt2x00dev, skb); /* * PLCP setup @@ -301,13 +302,14 @@ static void rt2x00queue_create_tx_descriptor_plcp(struct queue_entry *entry, } } -static void rt2x00queue_create_tx_descriptor_ht(struct queue_entry *entry, +static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc, const struct rt2x00_rate *hwrate) { - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0]; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; if (tx_info->control.sta) txdesc->u.ht.mpdu_density = @@ -380,12 +382,12 @@ static void rt2x00queue_create_tx_descriptor_ht(struct queue_entry *entry, txdesc->u.ht.txop = TXOP_HTTXOP; } -static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, +static void rt2x00queue_create_tx_descriptor(struct rt2x00_dev *rt2x00dev, + struct sk_buff *skb, struct txentry_desc *txdesc) { - struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_rate *txrate = &tx_info->control.rates[0]; struct ieee80211_rate *rate; const struct rt2x00_rate *hwrate = NULL; @@ -395,8 +397,8 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, /* * Header and frame information. */ - txdesc->length = entry->skb->len; - txdesc->header_length = ieee80211_get_hdrlen_from_skb(entry->skb); + txdesc->length = skb->len; + txdesc->header_length = ieee80211_get_hdrlen_from_skb(skb); /* * Check whether this frame is to be acked. @@ -471,13 +473,15 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry, /* * Apply TX descriptor handling by components */ - rt2x00crypto_create_tx_descriptor(entry, txdesc); - rt2x00queue_create_tx_descriptor_seq(entry, txdesc); + rt2x00crypto_create_tx_descriptor(rt2x00dev, skb, txdesc); + rt2x00queue_create_tx_descriptor_seq(rt2x00dev, skb, txdesc); if (test_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags)) - rt2x00queue_create_tx_descriptor_ht(entry, txdesc, hwrate); + rt2x00queue_create_tx_descriptor_ht(rt2x00dev, skb, txdesc, + hwrate); else - rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, hwrate); + rt2x00queue_create_tx_descriptor_plcp(rt2x00dev, skb, txdesc, + hwrate); } static int rt2x00queue_write_tx_data(struct queue_entry *entry, @@ -555,33 +559,18 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, bool local) { struct ieee80211_tx_info *tx_info; - struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); + struct queue_entry *entry; struct txentry_desc txdesc; struct skb_frame_desc *skbdesc; u8 rate_idx, rate_flags; - - if (unlikely(rt2x00queue_full(queue))) { - ERROR(queue->rt2x00dev, - "Dropping frame due to full tx queue %d.\n", queue->qid); - return -ENOBUFS; - } - - if (unlikely(test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, - &entry->flags))) { - ERROR(queue->rt2x00dev, - "Arrived at non-free entry in the non-full queue %d.\n" - "Please file bug report to %s.\n", - queue->qid, DRV_PROJECT); - return -EINVAL; - } + int ret = 0; /* * Copy all TX descriptor information into txdesc, * after that we are free to use the skb->cb array * for our information. */ - entry->skb = skb; - rt2x00queue_create_tx_descriptor(entry, &txdesc); + rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc); /* * All information is retrieved from the skb->cb array, @@ -593,7 +582,6 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, rate_flags = tx_info->control.rates[0].flags; skbdesc = get_skb_frame_desc(skb); memset(skbdesc, 0, sizeof(*skbdesc)); - skbdesc->entry = entry; skbdesc->tx_rate_idx = rate_idx; skbdesc->tx_rate_flags = rate_flags; @@ -622,9 +610,33 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, * for PCI devices. */ if (test_bit(REQUIRE_L2PAD, &queue->rt2x00dev->cap_flags)) - rt2x00queue_insert_l2pad(entry->skb, txdesc.header_length); + rt2x00queue_insert_l2pad(skb, txdesc.header_length); else if (test_bit(REQUIRE_DMA, &queue->rt2x00dev->cap_flags)) - rt2x00queue_align_frame(entry->skb); + rt2x00queue_align_frame(skb); + + spin_lock(&queue->tx_lock); + + if (unlikely(rt2x00queue_full(queue))) { + ERROR(queue->rt2x00dev, + "Dropping frame due to full tx queue %d.\n", queue->qid); + ret = -ENOBUFS; + goto out; + } + + entry = rt2x00queue_get_entry(queue, Q_INDEX); + + if (unlikely(test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, + &entry->flags))) { + ERROR(queue->rt2x00dev, + "Arrived at non-free entry in the non-full queue %d.\n" + "Please file bug report to %s.\n", + queue->qid, DRV_PROJECT); + ret = -EINVAL; + goto out; + } + + skbdesc->entry = entry; + entry->skb = skb; /* * It could be possible that the queue was corrupted and this @@ -634,7 +646,8 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, if (unlikely(rt2x00queue_write_tx_data(entry, &txdesc))) { clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); entry->skb = NULL; - return -EIO; + ret = -EIO; + goto out; } set_bit(ENTRY_DATA_PENDING, &entry->flags); @@ -643,7 +656,9 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, rt2x00queue_write_tx_descriptor(entry, &txdesc); rt2x00queue_kick_tx_queue(queue, &txdesc); - return 0; +out: + spin_unlock(&queue->tx_lock); + return ret; } int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev, @@ -697,7 +712,7 @@ int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev, * after that we are free to use the skb->cb array * for our information. */ - rt2x00queue_create_tx_descriptor(intf->beacon, &txdesc); + rt2x00queue_create_tx_descriptor(rt2x00dev, intf->beacon->skb, &txdesc); /* * Fill in skb descriptor @@ -1184,6 +1199,7 @@ static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev, struct data_queue *queue, enum data_queue_qid qid) { mutex_init(&queue->status_lock); + spin_lock_init(&queue->tx_lock); spin_lock_init(&queue->index_lock); queue->rt2x00dev = rt2x00dev; diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 5900474..f2100f4 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -432,6 +432,7 @@ enum data_queue_flags { * @flags: Entry flags, see &enum queue_entry_flags. * @status_lock: The mutex for protecting the start/stop/flush * handling on this queue. + * @tx_lock: Spinlock to serialize tx operations on this queue. * @index_lock: Spinlock to protect index handling. Whenever @index, @index_done or * @index_crypt needs to be changed this lock should be grabbed to prevent * index corruption due to concurrency. @@ -458,6 +459,7 @@ struct data_queue { unsigned long flags; struct mutex status_lock; + spinlock_t tx_lock; spinlock_t index_lock; unsigned int count; diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 9d35ec1..53110b8 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -2982,6 +2982,7 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = { .set_antenna = rt2x00mac_set_antenna, .get_antenna = rt2x00mac_get_antenna, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2x00lib_ops rt61pci_rt2x00_ops = { diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index ad20953..6a93939 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -2314,6 +2314,7 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = { .set_antenna = rt2x00mac_set_antenna, .get_antenna = rt2x00mac_get_antenna, .get_ringparam = rt2x00mac_get_ringparam, + .tx_frames_pending = rt2x00mac_tx_frames_pending, }; static const struct rt2x00lib_ops rt73usb_rt2x00_ops = { diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 532c7d3..5efd578 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -788,15 +788,11 @@ static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) { struct ieee80211_hw *hw = dev_id; struct rtl_priv *rtlpriv = rtl_priv(hw); - struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); unsigned long flags; u32 inta = 0; u32 intb = 0; - if (rtlpci->irq_enabled == 0) - return IRQ_HANDLED; - spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); /*read ISR: 4/8bytes */ diff --git a/drivers/net/wireless/rtlwifi/pci.h b/drivers/net/wireless/rtlwifi/pci.h index a50e551..c53c620 100644 --- a/drivers/net/wireless/rtlwifi/pci.h +++ b/drivers/net/wireless/rtlwifi/pci.h @@ -158,7 +158,6 @@ struct rtl_pci { bool first_init; bool being_init_adapter; bool init_ready; - bool irq_enabled; /*Tx */ struct rtl8192_tx_ring tx_ring[RTL_PCI_MAX_TX_QUEUE_COUNT]; diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c index bc6ae9d..9e2a9e3 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c @@ -1183,7 +1183,6 @@ void rtl92ce_enable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF); - rtlpci->irq_enabled = true; } void rtl92ce_disable_interrupt(struct ieee80211_hw *hw) @@ -1193,7 +1192,6 @@ void rtl92ce_disable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED); rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED); - rtlpci->irq_enabled = false; synchronize_irq(rtlpci->pdev->irq); } diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c index 4e057df..a90c09b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c @@ -380,13 +380,11 @@ void rtl92c_enable_interrupt(struct ieee80211_hw *hw) 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF); - rtlpci->irq_enabled = true; } else { rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] & 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] & 0xFFFFFFFF); - rtlusb->irq_enabled = true; } } @@ -398,16 +396,9 @@ void rtl92c_init_interrupt(struct ieee80211_hw *hw) void rtl92c_disable_interrupt(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); - struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); - struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED); rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED); - if (IS_HARDWARE_TYPE_8192CE(rtlhal)) - rtlpci->irq_enabled = false; - else if (IS_HARDWARE_TYPE_8192CU(rtlhal)) - rtlusb->irq_enabled = false; } void rtl92c_set_qos(struct ieee80211_hw *hw, int aci) diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c index e833bbf..5a65bea 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c @@ -449,7 +449,7 @@ void rtl92de_set_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val) case HW_VAR_CORRECT_TSF: { u8 btype_ibss = ((u8 *) (val))[0]; - if (btype_ibss == true) + if (btype_ibss) _rtl92de_stop_tx_beacon(hw); _rtl92de_set_bcn_ctrl_reg(hw, 0, BIT(3)); rtl_write_dword(rtlpriv, REG_TSFTR, @@ -457,7 +457,7 @@ void rtl92de_set_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val) rtl_write_dword(rtlpriv, REG_TSFTR + 4, (u32) ((mac->tsf >> 32) & 0xffffffff)); _rtl92de_set_bcn_ctrl_reg(hw, BIT(3), 0); - if (btype_ibss == true) + if (btype_ibss) _rtl92de_resume_tx_beacon(hw); break; @@ -932,8 +932,8 @@ int rtl92de_hw_init(struct ieee80211_hw *hw) RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("Failed to download FW. Init HW " "without FW..\n")); - err = 1; rtlhal->fw_ready = false; + return 1; } else { rtlhal->fw_ready = true; } @@ -1044,6 +1044,11 @@ int rtl92de_hw_init(struct ieee80211_hw *hw) if (((tmp_rega & BIT(11)) == BIT(11))) break; } + /* check that loop was successful. If not, exit now */ + if (i == 10000) { + rtlpci->init_ready = false; + return 1; + } } } rtlpci->init_ready = true; @@ -1142,7 +1147,7 @@ void rtl92de_set_check_bssid(struct ieee80211_hw *hw, bool check_bssid) if (rtlpriv->psc.rfpwr_state != ERFON) return; - if (check_bssid == true) { + if (check_bssid) { reg_rcr |= (RCR_CBSSID_DATA | RCR_CBSSID_BCN); rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR, (u8 *)(®_rcr)); _rtl92de_set_bcn_ctrl_reg(hw, 0, BIT(4)); @@ -1221,7 +1226,6 @@ void rtl92de_enable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 0xFFFFFFFF); rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 0xFFFFFFFF); - rtlpci->irq_enabled = true; } void rtl92de_disable_interrupt(struct ieee80211_hw *hw) @@ -1231,7 +1235,6 @@ void rtl92de_disable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED); rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED); - rtlpci->irq_enabled = false; synchronize_irq(rtlpci->pdev->irq); } @@ -1787,7 +1790,7 @@ static void _rtl92de_read_adapter_info(struct ieee80211_hw *hw) RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("Autoload OK\n")); rtlefuse->autoload_failflag = false; } - if (rtlefuse->autoload_failflag == true) { + if (rtlefuse->autoload_failflag) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, ("RTL819X Not boot from eeprom, check it !!")); return; @@ -2149,7 +2152,7 @@ bool rtl92de_gpio_radio_on_off_checking(struct ieee80211_hw *hw, u8 *valid) REG_MAC_PINMUX_CFG) & ~(BIT(3))); u1tmp = rtl_read_byte(rtlpriv, REG_GPIO_IO_SEL); e_rfpowerstate_toset = (u1tmp & BIT(3)) ? ERFON : ERFOFF; - if ((ppsc->hwradiooff == true) && (e_rfpowerstate_toset == ERFON)) { + if (ppsc->hwradiooff && (e_rfpowerstate_toset == ERFON)) { RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG, ("GPIOChangeRF - HW Radio ON, RF ON\n")); e_rfpowerstate_toset = ERFON; diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/led.c b/drivers/net/wireless/rtlwifi/rtl8192de/led.c index 719972c..f1552f4 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/led.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/led.c @@ -93,7 +93,7 @@ void rtl92de_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled) break; case LED_PIN_LED0: ledcfg &= 0xf0; - if (pcipriv->ledctl.led_opendrain == true) + if (pcipriv->ledctl.led_opendrain) rtl_write_byte(rtlpriv, REG_LEDCFG2, (ledcfg | BIT(1) | BIT(5) | BIT(6))); else diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c index 97fb6ca..3ac7af1 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c @@ -932,7 +932,7 @@ bool rtl92d_phy_config_rf_with_headerfile(struct ieee80211_hw *hw, enum rf_content content, enum radio_path rfpath) { - int i, j; + int i; u32 *radioa_array_table; u32 *radiob_array_table; u16 radioa_arraylen, radiob_arraylen; @@ -974,13 +974,10 @@ bool rtl92d_phy_config_rf_with_headerfile(struct ieee80211_hw *hw, mdelay(50); } else if (radioa_array_table[i] == 0xfd) { /* delay_ms(5); */ - for (j = 0; j < 100; j++) - udelay(MAX_STALL_TIME); + mdelay(5); } else if (radioa_array_table[i] == 0xfc) { /* delay_ms(1); */ - for (j = 0; j < 20; j++) - udelay(MAX_STALL_TIME); - + mdelay(1); } else if (radioa_array_table[i] == 0xfb) { udelay(50); } else if (radioa_array_table[i] == 0xfa) { @@ -1004,12 +1001,10 @@ bool rtl92d_phy_config_rf_with_headerfile(struct ieee80211_hw *hw, mdelay(50); } else if (radiob_array_table[i] == 0xfd) { /* delay_ms(5); */ - for (j = 0; j < 100; j++) - udelay(MAX_STALL_TIME); + mdelay(5); } else if (radiob_array_table[i] == 0xfc) { /* delay_ms(1); */ - for (j = 0; j < 20; j++) - udelay(MAX_STALL_TIME); + mdelay(1); } else if (radiob_array_table[i] == 0xfb) { udelay(50); } else if (radiob_array_table[i] == 0xfa) { @@ -1276,7 +1271,7 @@ static void rtl92d_phy_switch_wirelessband(struct ieee80211_hw *hw, u8 band) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); - u8 i, value8; + u8 value8; RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("==>\n")); rtlhal->bandset = band; @@ -1321,8 +1316,7 @@ static void rtl92d_phy_switch_wirelessband(struct ieee80211_hw *hw, u8 band) rtl_write_byte(rtlpriv, (rtlhal->interfaceindex == 0 ? REG_MAC0 : REG_MAC1), value8); } - for (i = 0; i < 20; i++) - udelay(MAX_STALL_TIME); + mdelay(1); RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("<==Switch Band OK.\n")); } @@ -1684,7 +1678,7 @@ static u8 _rtl92d_phy_patha_iqk(struct ieee80211_hw *hw, bool configpathb) RTPRINT(rtlpriv, FINIT, INIT_IQK, ("Delay %d ms for One shot, path A LOK & IQK.\n", IQK_DELAY_TIME)); - udelay(IQK_DELAY_TIME * 1000); + mdelay(IQK_DELAY_TIME); /* Check failed */ regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD); RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac)); @@ -1755,7 +1749,7 @@ static u8 _rtl92d_phy_patha_iqk_5g_normal(struct ieee80211_hw *hw, RTPRINT(rtlpriv, FINIT, INIT_IQK, ("Delay %d ms for One shot, path A LOK & IQK.\n", IQK_DELAY_TIME)); - udelay(IQK_DELAY_TIME * 1000 * 10); + mdelay(IQK_DELAY_TIME * 10); /* Check failed */ regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD); RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac)); @@ -1808,7 +1802,7 @@ static u8 _rtl92d_phy_pathb_iqk(struct ieee80211_hw *hw) RTPRINT(rtlpriv, FINIT, INIT_IQK, ("Delay %d ms for One shot, path B LOK & IQK.\n", IQK_DELAY_TIME)); - udelay(IQK_DELAY_TIME * 1000); + mdelay(IQK_DELAY_TIME); /* Check failed */ regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD); RTPRINT(rtlpriv, FINIT, INIT_IQK, ("0xeac = 0x%x\n", regeac)); @@ -1875,7 +1869,7 @@ static u8 _rtl92d_phy_pathb_iqk_5g_normal(struct ieee80211_hw *hw) /* delay x ms */ RTPRINT(rtlpriv, FINIT, INIT_IQK, ("Delay %d ms for One shot, path B LOK & IQK.\n", 10)); - udelay(IQK_DELAY_TIME * 1000 * 10); + mdelay(IQK_DELAY_TIME * 10); /* Check failed */ regeac = rtl_get_bbreg(hw, 0xeac, BMASKDWORD); @@ -2206,7 +2200,7 @@ static void _rtl92d_phy_iq_calibrate_5g_normal(struct ieee80211_hw *hw, * PHY_REG.txt , and radio_a, radio_b.txt */ RTPRINT(rtlpriv, FINIT, INIT_IQK, ("IQK for 5G NORMAL:Start!!!\n")); - udelay(IQK_DELAY_TIME * 1000 * 20); + mdelay(IQK_DELAY_TIME * 20); if (t == 0) { bbvalue = rtl_get_bbreg(hw, RFPGA0_RFMOD, BMASKDWORD); RTPRINT(rtlpriv, FINIT, INIT_IQK, ("==>0x%08x\n", bbvalue)); diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/rf.c b/drivers/net/wireless/rtlwifi/rtl8192de/rf.c index c326372..db27ceb 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/rf.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/rf.c @@ -87,7 +87,7 @@ void rtl92d_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw, if (rtlefuse->eeprom_regulatory != 0) turbo_scanoff = true; - if (mac->act_scanning == true) { + if (mac->act_scanning) { tx_agc[RF90_PATH_A] = 0x3f3f3f3f; tx_agc[RF90_PATH_B] = 0x3f3f3f3f; if (turbo_scanoff) { @@ -416,9 +416,9 @@ bool rtl92d_phy_enable_anotherphy(struct ieee80211_hw *hw, bool bmac0) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = &(rtlpriv->rtlhal); u8 u1btmp; - u8 direct = bmac0 == true ? BIT(3) | BIT(2) : BIT(3); - u8 mac_reg = bmac0 == true ? REG_MAC1 : REG_MAC0; - u8 mac_on_bit = bmac0 == true ? MAC1_ON : MAC0_ON; + u8 direct = bmac0 ? BIT(3) | BIT(2) : BIT(3); + u8 mac_reg = bmac0 ? REG_MAC1 : REG_MAC0; + u8 mac_on_bit = bmac0 ? MAC1_ON : MAC0_ON; bool bresult = true; /* true: need to enable BB/RF power */ rtlhal->during_mac0init_radiob = false; @@ -447,9 +447,9 @@ void rtl92d_phy_powerdown_anotherphy(struct ieee80211_hw *hw, bool bmac0) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = &(rtlpriv->rtlhal); u8 u1btmp; - u8 direct = bmac0 == true ? BIT(3) | BIT(2) : BIT(3); - u8 mac_reg = bmac0 == true ? REG_MAC1 : REG_MAC0; - u8 mac_on_bit = bmac0 == true ? MAC1_ON : MAC0_ON; + u8 direct = bmac0 ? BIT(3) | BIT(2) : BIT(3); + u8 mac_reg = bmac0 ? REG_MAC1 : REG_MAC0; + u8 mac_on_bit = bmac0 ? MAC1_ON : MAC0_ON; rtlhal->during_mac0init_radiob = false; rtlhal->during_mac1init_radioa = false; @@ -573,7 +573,7 @@ bool rtl92d_phy_rf6052_config(struct ieee80211_hw *hw) udelay(1); switch (rfpath) { case RF90_PATH_A: - if (true_bpath == true) + if (true_bpath) rtstatus = rtl92d_phy_config_rf_with_headerfile( hw, radiob_txt, (enum radio_path)rfpath); diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c index bf1462f..dc86fcb 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c @@ -614,7 +614,7 @@ bool rtl92de_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats, (u8) GET_RX_DESC_RXMCS(pdesc)); rx_status->mactime = GET_RX_DESC_TSFL(pdesc); - if (phystatus == true) { + if (phystatus) { p_drvinfo = (struct rx_fwinfo_92d *)(skb->data + stats->rx_bufshift); _rtl92de_translate_rx_signal_stuff(hw, @@ -876,7 +876,7 @@ void rtl92de_tx_fill_cmddesc(struct ieee80211_hw *hw, void rtl92de_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val) { - if (istx == true) { + if (istx) { switch (desc_name) { case HW_DESC_OWN: wmb(); @@ -917,7 +917,7 @@ u32 rtl92de_get_desc(u8 *p_desc, bool istx, u8 desc_name) { u32 ret = 0; - if (istx == true) { + if (istx) { switch (desc_name) { case HW_DESC_OWN: ret = GET_TX_DESC_OWN(p_desc); diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/hw.c b/drivers/net/wireless/rtlwifi/rtl8192se/hw.c index 13da7b3..b1d0213 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/hw.c @@ -1214,8 +1214,6 @@ void rtl92se_enable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, INTA_MASK, rtlpci->irq_mask[0]); /* Support Bit 32-37(Assign as Bit 0-5) interrupt setting now */ rtl_write_dword(rtlpriv, INTA_MASK + 4, rtlpci->irq_mask[1] & 0x3F); - - rtlpci->irq_enabled = true; } void rtl92se_disable_interrupt(struct ieee80211_hw *hw) @@ -1226,7 +1224,6 @@ void rtl92se_disable_interrupt(struct ieee80211_hw *hw) rtl_write_dword(rtlpriv, INTA_MASK, 0); rtl_write_dword(rtlpriv, INTA_MASK + 4, 0); - rtlpci->irq_enabled = false; synchronize_irq(rtlpci->pdev->irq); } diff --git a/drivers/net/wireless/wl12xx/Kconfig b/drivers/net/wireless/wl12xx/Kconfig index 35ce7b0..07bcb15 100644 --- a/drivers/net/wireless/wl12xx/Kconfig +++ b/drivers/net/wireless/wl12xx/Kconfig @@ -11,7 +11,6 @@ config WL12XX depends on WL12XX_MENU && GENERIC_HARDIRQS depends on INET select FW_LOADER - select CRC7 ---help--- This module adds support for wireless adapters based on TI wl1271 and TI wl1273 chipsets. This module does *not* include support for wl1251. @@ -33,6 +32,7 @@ config WL12XX_HT config WL12XX_SPI tristate "TI wl12xx SPI support" depends on WL12XX && SPI_MASTER + select CRC7 ---help--- This module adds support for the SPI interface of adapters using TI wl12xx chipsets. Select this if your platform is using diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c index c6ee530..87caa94 100644 --- a/drivers/net/wireless/wl12xx/acx.c +++ b/drivers/net/wireless/wl12xx/acx.c @@ -25,7 +25,6 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/crc7.h> #include <linux/spi/spi.h> #include <linux/slab.h> @@ -1068,6 +1067,7 @@ int wl1271_acx_sta_mem_cfg(struct wl1271 *wl) mem_conf->tx_free_req = mem->min_req_tx_blocks; mem_conf->rx_free_req = mem->min_req_rx_blocks; mem_conf->tx_min = mem->tx_min; + mem_conf->fwlog_blocks = wl->conf.fwlog.mem_blocks; ret = wl1271_cmd_configure(wl, ACX_MEM_CFG, mem_conf, sizeof(*mem_conf)); @@ -1577,6 +1577,53 @@ out: return ret; } +int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, bool enable) +{ + struct wl1271_acx_ps_rx_streaming *rx_streaming; + u32 conf_queues, enable_queues; + int i, ret = 0; + + wl1271_debug(DEBUG_ACX, "acx ps rx streaming"); + + rx_streaming = kzalloc(sizeof(*rx_streaming), GFP_KERNEL); + if (!rx_streaming) { + ret = -ENOMEM; + goto out; + } + + conf_queues = wl->conf.rx_streaming.queues; + if (enable) + enable_queues = conf_queues; + else + enable_queues = 0; + + for (i = 0; i < 8; i++) { + /* + * Skip non-changed queues, to avoid redundant acxs. + * this check assumes conf.rx_streaming.queues can't + * be changed while rx_streaming is enabled. + */ + if (!(conf_queues & BIT(i))) + continue; + + rx_streaming->tid = i; + rx_streaming->enable = enable_queues & BIT(i); + rx_streaming->period = wl->conf.rx_streaming.interval; + rx_streaming->timeout = wl->conf.rx_streaming.interval; + + ret = wl1271_cmd_configure(wl, ACX_PS_RX_STREAMING, + rx_streaming, + sizeof(*rx_streaming)); + if (ret < 0) { + wl1271_warning("acx ps rx streaming failed: %d", ret); + goto out; + } + } +out: + kfree(rx_streaming); + return ret; +} + int wl1271_acx_max_tx_retry(struct wl1271 *wl) { struct wl1271_acx_max_tx_retry *acx = NULL; diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h index 9a895e3..d303265 100644 --- a/drivers/net/wireless/wl12xx/acx.h +++ b/drivers/net/wireless/wl12xx/acx.h @@ -828,6 +828,8 @@ struct wl1271_acx_sta_config_memory { u8 tx_free_req; u8 rx_free_req; u8 tx_min; + u8 fwlog_blocks; + u8 padding[3]; } __packed; struct wl1271_acx_mem_map { @@ -1153,6 +1155,19 @@ struct wl1271_acx_fw_tsf_information { u8 padding[3]; } __packed; +struct wl1271_acx_ps_rx_streaming { + struct acx_header header; + + u8 tid; + u8 enable; + + /* interval between triggers (10-100 msec) */ + u8 period; + + /* timeout before first trigger (0-200 msec) */ + u8 timeout; +} __packed; + struct wl1271_acx_max_tx_retry { struct acx_header header; @@ -1384,6 +1399,7 @@ int wl1271_acx_set_ba_session(struct wl1271 *wl, int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn, bool enable); int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime); +int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, bool enable); int wl1271_acx_max_tx_retry(struct wl1271 *wl); int wl1271_acx_config_ps(struct wl1271 *wl); int wl1271_acx_set_inconnection_sta(struct wl1271 *wl, u8 *addr); diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c index 7ccec07..101f7e0 100644 --- a/drivers/net/wireless/wl12xx/boot.c +++ b/drivers/net/wireless/wl12xx/boot.c @@ -102,6 +102,33 @@ static void wl1271_boot_set_ecpu_ctrl(struct wl1271 *wl, u32 flag) wl1271_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl); } +static unsigned int wl12xx_get_fw_ver_quirks(struct wl1271 *wl) +{ + unsigned int quirks = 0; + unsigned int *fw_ver = wl->chip.fw_ver; + + /* Only for wl127x */ + if ((fw_ver[FW_VER_CHIP] == FW_VER_CHIP_WL127X) && + /* Check STA version */ + (((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) && + (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_STA_MIN)) || + /* Check AP version */ + ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) && + (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_AP_MIN)))) + quirks |= WL12XX_QUIRK_USE_2_SPARE_BLOCKS; + + /* Only new station firmwares support routing fw logs to the host */ + if ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) && + (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_FWLOG_STA_MIN)) + quirks |= WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED; + + /* This feature is not yet supported for AP mode */ + if (fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) + quirks |= WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED; + + return quirks; +} + static void wl1271_parse_fw_ver(struct wl1271 *wl) { int ret; @@ -116,6 +143,9 @@ static void wl1271_parse_fw_ver(struct wl1271 *wl) memset(wl->chip.fw_ver, 0, sizeof(wl->chip.fw_ver)); return; } + + /* Check if any quirks are needed with older fw versions */ + wl->quirks |= wl12xx_get_fw_ver_quirks(wl); } static void wl1271_boot_fw_version(struct wl1271 *wl) @@ -749,6 +779,9 @@ int wl1271_load_firmware(struct wl1271 *wl) clk |= (wl->ref_clock << 1) << 4; } + if (wl->quirks & WL12XX_QUIRK_LPD_MODE) + clk |= SCRATCH_ENABLE_LPD; + wl1271_write32(wl, DRPW_SCRATCH_START, clk); wl1271_set_partition(wl, &part_table[PART_WORK]); diff --git a/drivers/net/wireless/wl12xx/cmd.c b/drivers/net/wireless/wl12xx/cmd.c index 5d0ad2d..68972cb 100644 --- a/drivers/net/wireless/wl12xx/cmd.c +++ b/drivers/net/wireless/wl12xx/cmd.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/crc7.h> #include <linux/spi/spi.h> #include <linux/etherdevice.h> #include <linux/ieee80211.h> @@ -106,7 +105,7 @@ int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len, fail: WARN_ON(1); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); return ret; } @@ -135,6 +134,11 @@ int wl1271_cmd_general_parms(struct wl1271 *wl) /* Override the REF CLK from the NVS with the one from platform data */ gen_parms->general_params.ref_clock = wl->ref_clock; + /* LPD mode enable (bits 6-7) in WL1271 AP mode only */ + if (wl->quirks & WL12XX_QUIRK_LPD_MODE) + gen_parms->general_params.general_settings |= + GENERAL_SETTINGS_DRPW_LPD; + ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer); if (ret < 0) { wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed"); @@ -352,7 +356,7 @@ static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask) ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask); if (ret != 0) { - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); return ret; } @@ -1223,3 +1227,87 @@ out_free: out: return ret; } + +int wl12xx_cmd_config_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_config_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd config firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + cmd->logger_mode = wl->conf.fwlog.mode; + cmd->log_severity = wl->conf.fwlog.severity; + cmd->timestamp = wl->conf.fwlog.timestamp; + cmd->output = wl->conf.fwlog.output; + cmd->threshold = wl->conf.fwlog.threshold; + + ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send config firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_start_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_start_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd start firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send start firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} + +int wl12xx_cmd_stop_fwlog(struct wl1271 *wl) +{ + struct wl12xx_cmd_stop_fwlog *cmd; + int ret = 0; + + wl1271_debug(DEBUG_CMD, "cmd stop firmware logger"); + + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) { + ret = -ENOMEM; + goto out; + } + + ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0); + if (ret < 0) { + wl1271_error("failed to send stop firmware logger command"); + goto out_free; + } + +out_free: + kfree(cmd); + +out: + return ret; +} diff --git a/drivers/net/wireless/wl12xx/cmd.h b/drivers/net/wireless/wl12xx/cmd.h index 5cac95d..1f70372 100644 --- a/drivers/net/wireless/wl12xx/cmd.h +++ b/drivers/net/wireless/wl12xx/cmd.h @@ -70,6 +70,9 @@ int wl1271_cmd_start_bss(struct wl1271 *wl); int wl1271_cmd_stop_bss(struct wl1271 *wl); int wl1271_cmd_add_sta(struct wl1271 *wl, struct ieee80211_sta *sta, u8 hlid); int wl1271_cmd_remove_sta(struct wl1271 *wl, u8 hlid); +int wl12xx_cmd_config_fwlog(struct wl1271 *wl); +int wl12xx_cmd_start_fwlog(struct wl1271 *wl); +int wl12xx_cmd_stop_fwlog(struct wl1271 *wl); enum wl1271_commands { CMD_INTERROGATE = 1, /*use this to read information elements*/ @@ -107,6 +110,9 @@ enum wl1271_commands { CMD_START_PERIODIC_SCAN = 50, CMD_STOP_PERIODIC_SCAN = 51, CMD_SET_STA_STATE = 52, + CMD_CONFIG_FWLOGGER = 53, + CMD_START_FWLOGGER = 54, + CMD_STOP_FWLOGGER = 55, /* AP mode commands */ CMD_BSS_START = 60, @@ -575,4 +581,60 @@ struct wl1271_cmd_remove_sta { u8 padding1; } __packed; +/* + * Continuous mode - packets are transferred to the host periodically + * via the data path. + * On demand - Log messages are stored in a cyclic buffer in the + * firmware, and only transferred to the host when explicitly requested + */ +enum wl12xx_fwlogger_log_mode { + WL12XX_FWLOG_CONTINUOUS, + WL12XX_FWLOG_ON_DEMAND +}; + +/* Include/exclude timestamps from the log messages */ +enum wl12xx_fwlogger_timestamp { + WL12XX_FWLOG_TIMESTAMP_DISABLED, + WL12XX_FWLOG_TIMESTAMP_ENABLED +}; + +/* + * Logs can be routed to the debug pinouts (where available), to the host bus + * (SDIO/SPI), or dropped + */ +enum wl12xx_fwlogger_output { + WL12XX_FWLOG_OUTPUT_NONE, + WL12XX_FWLOG_OUTPUT_DBG_PINS, + WL12XX_FWLOG_OUTPUT_HOST, +}; + +struct wl12xx_cmd_config_fwlog { + struct wl1271_cmd_header header; + + /* See enum wl12xx_fwlogger_log_mode */ + u8 logger_mode; + + /* Minimum log level threshold */ + u8 log_severity; + + /* Include/exclude timestamps from the log messages */ + u8 timestamp; + + /* See enum wl1271_fwlogger_output */ + u8 output; + + /* Regulates the frequency of log messages */ + u8 threshold; + + u8 padding[3]; +} __packed; + +struct wl12xx_cmd_start_fwlog { + struct wl1271_cmd_header header; +} __packed; + +struct wl12xx_cmd_stop_fwlog { + struct wl1271_cmd_header header; +} __packed; + #endif /* __WL1271_CMD_H__ */ diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h index c83fefb..b5a7b30 100644 --- a/drivers/net/wireless/wl12xx/conf.h +++ b/drivers/net/wireless/wl12xx/conf.h @@ -1248,6 +1248,59 @@ struct conf_fm_coex { u8 swallow_clk_diff; }; +struct conf_rx_streaming_settings { + /* + * RX Streaming duration (in msec) from last tx/rx + * + * Range: u32 + */ + u32 duration; + + /* + * Bitmap of tids to be polled during RX streaming. + * (Note: it doesn't look like it really matters) + * + * Range: 0x1-0xff + */ + u8 queues; + + /* + * RX Streaming interval. + * (Note:this value is also used as the rx streaming timeout) + * Range: 0 (disabled), 10 - 100 + */ + u8 interval; + + /* + * enable rx streaming also when there is no coex activity + */ + u8 always; +}; + +struct conf_fwlog { + /* Continuous or on-demand */ + u8 mode; + + /* + * Number of memory blocks dedicated for the FW logger + * + * Range: 1-3, or 0 to disable the FW logger + */ + u8 mem_blocks; + + /* Minimum log level threshold */ + u8 severity; + + /* Include/exclude timestamps from the log messages */ + u8 timestamp; + + /* See enum wl1271_fwlogger_output */ + u8 output; + + /* Regulates the frequency of log messages */ + u8 threshold; +}; + struct conf_drv_settings { struct conf_sg_settings sg; struct conf_rx_settings rx; @@ -1263,6 +1316,8 @@ struct conf_drv_settings { struct conf_memory_settings mem_wl127x; struct conf_memory_settings mem_wl128x; struct conf_fm_coex fm_coex; + struct conf_rx_streaming_settings rx_streaming; + struct conf_fwlog fwlog; u8 hci_io_ds; }; diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c index f1f8df9..da21270 100644 --- a/drivers/net/wireless/wl12xx/debugfs.c +++ b/drivers/net/wireless/wl12xx/debugfs.c @@ -71,6 +71,14 @@ static const struct file_operations name## _ops = { \ if (!entry || IS_ERR(entry)) \ goto err; \ +#define DEBUGFS_ADD_PREFIX(prefix, name, parent) \ + do { \ + entry = debugfs_create_file(#name, 0400, parent, \ + wl, &prefix## _## name## _ops); \ + if (!entry || IS_ERR(entry)) \ + goto err; \ + } while (0); + #define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \ static ssize_t sub## _ ##name## _read(struct file *file, \ char __user *userbuf, \ @@ -298,7 +306,7 @@ static ssize_t start_recovery_write(struct file *file, struct wl1271 *wl = file->private_data; mutex_lock(&wl->mutex); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); mutex_unlock(&wl->mutex); return count; @@ -527,11 +535,129 @@ static const struct file_operations beacon_interval_ops = { .llseek = default_llseek, }; +static ssize_t rx_streaming_interval_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct wl1271 *wl = file->private_data; + char buf[10]; + size_t len; + unsigned long value; + int ret; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + + ret = kstrtoul(buf, 0, &value); + if (ret < 0) { + wl1271_warning("illegal value in rx_streaming_interval!"); + return -EINVAL; + } + + /* valid values: 0, 10-100 */ + if (value && (value < 10 || value > 100)) { + wl1271_warning("value is not in range!"); + return -ERANGE; + } + + mutex_lock(&wl->mutex); + + wl->conf.rx_streaming.interval = value; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wl1271_recalc_rx_streaming(wl); + + wl1271_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); + return count; +} + +static ssize_t rx_streaming_interval_read(struct file *file, + char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct wl1271 *wl = file->private_data; + return wl1271_format_buffer(userbuf, count, ppos, + "%d\n", wl->conf.rx_streaming.interval); +} + +static const struct file_operations rx_streaming_interval_ops = { + .read = rx_streaming_interval_read, + .write = rx_streaming_interval_write, + .open = wl1271_open_file_generic, + .llseek = default_llseek, +}; + +static ssize_t rx_streaming_always_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct wl1271 *wl = file->private_data; + char buf[10]; + size_t len; + unsigned long value; + int ret; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + buf[len] = '\0'; + + ret = kstrtoul(buf, 0, &value); + if (ret < 0) { + wl1271_warning("illegal value in rx_streaming_write!"); + return -EINVAL; + } + + /* valid values: 0, 10-100 */ + if (!(value == 0 || value == 1)) { + wl1271_warning("value is not in valid!"); + return -EINVAL; + } + + mutex_lock(&wl->mutex); + + wl->conf.rx_streaming.always = value; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + wl1271_recalc_rx_streaming(wl); + + wl1271_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); + return count; +} + +static ssize_t rx_streaming_always_read(struct file *file, + char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct wl1271 *wl = file->private_data; + return wl1271_format_buffer(userbuf, count, ppos, + "%d\n", wl->conf.rx_streaming.always); +} + +static const struct file_operations rx_streaming_always_ops = { + .read = rx_streaming_always_read, + .write = rx_streaming_always_write, + .open = wl1271_open_file_generic, + .llseek = default_llseek, +}; + static int wl1271_debugfs_add_files(struct wl1271 *wl, struct dentry *rootdir) { int ret = 0; - struct dentry *entry, *stats; + struct dentry *entry, *stats, *streaming; stats = debugfs_create_dir("fw-statistics", rootdir); if (!stats || IS_ERR(stats)) { @@ -640,6 +766,14 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl, DEBUGFS_ADD(dtim_interval, rootdir); DEBUGFS_ADD(beacon_interval, rootdir); + streaming = debugfs_create_dir("rx_streaming", rootdir); + if (!streaming || IS_ERR(streaming)) + goto err; + + DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming); + DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming); + + return 0; err: diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c index 94bbd00..a16dee5 100644 --- a/drivers/net/wireless/wl12xx/event.c +++ b/drivers/net/wireless/wl12xx/event.c @@ -133,10 +133,13 @@ static int wl1271_event_ps_report(struct wl1271 *wl, if (ret < 0) break; - /* enable beacon early termination */ - ret = wl1271_acx_bet_enable(wl, true); - if (ret < 0) - break; + /* + * BET has only a minor effect in 5GHz and masks + * channel switch IEs, so we only enable BET on 2.4GHz + */ + if (wl->band == IEEE80211_BAND_2GHZ) + /* enable beacon early termination */ + ret = wl1271_acx_bet_enable(wl, true); if (wl->ps_compl) { complete(wl->ps_compl); @@ -183,6 +186,21 @@ static void wl1271_stop_ba_event(struct wl1271 *wl, u8 ba_allowed) ieee80211_stop_rx_ba_session(wl->vif, wl->ba_rx_bitmap, wl->bssid); } +static void wl12xx_event_soft_gemini_sense(struct wl1271 *wl, + u8 enable) +{ + if (enable) { + /* disable dynamic PS when requested by the firmware */ + ieee80211_disable_dyn_ps(wl->vif); + set_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags); + } else { + ieee80211_enable_dyn_ps(wl->vif); + clear_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags); + wl1271_recalc_rx_streaming(wl); + } + +} + static void wl1271_event_mbox_dump(struct event_mailbox *mbox) { wl1271_debug(DEBUG_EVENT, "MBOX DUMP:"); @@ -226,14 +244,10 @@ static int wl1271_event_process(struct wl1271 *wl, struct event_mailbox *mbox) } } - /* disable dynamic PS when requested by the firmware */ if (vector & SOFT_GEMINI_SENSE_EVENT_ID && - wl->bss_type == BSS_TYPE_STA_BSS) { - if (mbox->soft_gemini_sense_info) - ieee80211_disable_dyn_ps(wl->vif); - else - ieee80211_enable_dyn_ps(wl->vif); - } + wl->bss_type == BSS_TYPE_STA_BSS) + wl12xx_event_soft_gemini_sense(wl, + mbox->soft_gemini_sense_info); /* * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon diff --git a/drivers/net/wireless/wl12xx/ini.h b/drivers/net/wireless/wl12xx/ini.h index 1420c84..4cf9ecc 100644 --- a/drivers/net/wireless/wl12xx/ini.h +++ b/drivers/net/wireless/wl12xx/ini.h @@ -24,6 +24,9 @@ #ifndef __INI_H__ #define __INI_H__ +#define GENERAL_SETTINGS_DRPW_LPD 0xc0 +#define SCRATCH_ENABLE_LPD BIT(25) + #define WL1271_INI_MAX_SMART_REFLEX_PARAM 16 struct wl1271_ini_general_params { diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c index f5c2c9e..cf40ac9 100644 --- a/drivers/net/wireless/wl12xx/init.c +++ b/drivers/net/wireless/wl12xx/init.c @@ -321,6 +321,20 @@ static int wl1271_init_beacon_broadcast(struct wl1271 *wl) return 0; } +static int wl12xx_init_fwlog(struct wl1271 *wl) +{ + int ret; + + if (wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) + return 0; + + ret = wl12xx_cmd_config_fwlog(wl); + if (ret < 0) + return ret; + + return 0; +} + static int wl1271_sta_hw_init(struct wl1271 *wl) { int ret; @@ -382,6 +396,11 @@ static int wl1271_sta_hw_init(struct wl1271 *wl) if (ret < 0) return ret; + /* Configure the FW logger */ + ret = wl12xx_init_fwlog(wl); + if (ret < 0) + return ret; + return 0; } diff --git a/drivers/net/wireless/wl12xx/io.c b/drivers/net/wireless/wl12xx/io.c index da5c1ad..c2da66f 100644 --- a/drivers/net/wireless/wl12xx/io.c +++ b/drivers/net/wireless/wl12xx/io.c @@ -23,7 +23,6 @@ #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/crc7.h> #include <linux/spi/spi.h> #include "wl12xx.h" @@ -128,12 +127,14 @@ EXPORT_SYMBOL_GPL(wl1271_set_partition); void wl1271_io_reset(struct wl1271 *wl) { - wl->if_ops->reset(wl); + if (wl->if_ops->reset) + wl->if_ops->reset(wl); } void wl1271_io_init(struct wl1271 *wl) { - wl->if_ops->init(wl); + if (wl->if_ops->init) + wl->if_ops->init(wl); } void wl1271_top_reg_write(struct wl1271 *wl, int addr, u16 val) diff --git a/drivers/net/wireless/wl12xx/io.h b/drivers/net/wireless/wl12xx/io.h index 20b0031..a2fe4f5 100644 --- a/drivers/net/wireless/wl12xx/io.h +++ b/drivers/net/wireless/wl12xx/io.h @@ -129,6 +129,20 @@ static inline void wl1271_write(struct wl1271 *wl, int addr, void *buf, wl1271_raw_write(wl, physical, buf, len, fixed); } +static inline void wl1271_read_hwaddr(struct wl1271 *wl, int hwaddr, + void *buf, size_t len, bool fixed) +{ + int physical; + int addr; + + /* Addresses are stored internally as addresses to 32 bytes blocks */ + addr = hwaddr << 5; + + physical = wl1271_translate_addr(wl, addr); + + wl1271_raw_read(wl, physical, buf, len, fixed); +} + static inline u32 wl1271_read32(struct wl1271 *wl, int addr) { return wl1271_raw_read32(wl, wl1271_translate_addr(wl, addr)); diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index f37f0b8..a3734bd 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -31,6 +31,7 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/wl12xx.h> +#include <linux/sched.h> #include "wl12xx.h" #include "wl12xx_80211.h" @@ -362,9 +363,25 @@ static struct conf_drv_settings default_conf = { .fm_disturbed_band_margin = 0xff, /* default */ .swallow_clk_diff = 0xff, /* default */ }, + .rx_streaming = { + .duration = 150, + .queues = 0x1, + .interval = 20, + .always = 0, + }, + .fwlog = { + .mode = WL12XX_FWLOG_ON_DEMAND, + .mem_blocks = 2, + .severity = 0, + .timestamp = WL12XX_FWLOG_TIMESTAMP_DISABLED, + .output = WL12XX_FWLOG_OUTPUT_HOST, + .threshold = 0, + }, .hci_io_ds = HCI_IO_DS_6MA, }; +static char *fwlog_param; + static void __wl1271_op_remove_interface(struct wl1271 *wl, bool reset_tx_queues); static void wl1271_free_ap_keys(struct wl1271 *wl); @@ -388,6 +405,22 @@ static struct platform_device wl1271_device = { static DEFINE_MUTEX(wl_list_mutex); static LIST_HEAD(wl_list); +static int wl1271_check_operstate(struct wl1271 *wl, unsigned char operstate) +{ + int ret; + if (operstate != IF_OPER_UP) + return 0; + + if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags)) + return 0; + + ret = wl1271_cmd_set_sta_state(wl); + if (ret < 0) + return ret; + + wl1271_info("Association completed."); + return 0; +} static int wl1271_dev_notify(struct notifier_block *me, unsigned long what, void *arg) { @@ -437,11 +470,7 @@ static int wl1271_dev_notify(struct notifier_block *me, unsigned long what, if (ret < 0) goto out; - if ((dev->operstate == IF_OPER_UP) && - !test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags)) { - wl1271_cmd_set_sta_state(wl); - wl1271_info("Association completed."); - } + wl1271_check_operstate(wl, dev->operstate); wl1271_ps_elp_sleep(wl); @@ -473,6 +502,117 @@ static int wl1271_reg_notify(struct wiphy *wiphy, return 0; } +static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable) +{ + int ret = 0; + + /* we should hold wl->mutex */ + ret = wl1271_acx_ps_rx_streaming(wl, enable); + if (ret < 0) + goto out; + + if (enable) + set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags); + else + clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags); +out: + return ret; +} + +/* + * this function is being called when the rx_streaming interval + * has beed changed or rx_streaming should be disabled + */ +int wl1271_recalc_rx_streaming(struct wl1271 *wl) +{ + int ret = 0; + int period = wl->conf.rx_streaming.interval; + + /* don't reconfigure if rx_streaming is disabled */ + if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags)) + goto out; + + /* reconfigure/disable according to new streaming_period */ + if (period && + test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) && + (wl->conf.rx_streaming.always || + test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) + ret = wl1271_set_rx_streaming(wl, true); + else { + ret = wl1271_set_rx_streaming(wl, false); + /* don't cancel_work_sync since we might deadlock */ + del_timer_sync(&wl->rx_streaming_timer); + } +out: + return ret; +} + +static void wl1271_rx_streaming_enable_work(struct work_struct *work) +{ + int ret; + struct wl1271 *wl = + container_of(work, struct wl1271, rx_streaming_enable_work); + + mutex_lock(&wl->mutex); + + if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) || + !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) || + (!wl->conf.rx_streaming.always && + !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) + goto out; + + if (!wl->conf.rx_streaming.interval) + goto out; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + ret = wl1271_set_rx_streaming(wl, true); + if (ret < 0) + goto out_sleep; + + /* stop it after some time of inactivity */ + mod_timer(&wl->rx_streaming_timer, + jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration)); + +out_sleep: + wl1271_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); +} + +static void wl1271_rx_streaming_disable_work(struct work_struct *work) +{ + int ret; + struct wl1271 *wl = + container_of(work, struct wl1271, rx_streaming_disable_work); + + mutex_lock(&wl->mutex); + + if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags)) + goto out; + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out; + + ret = wl1271_set_rx_streaming(wl, false); + if (ret) + goto out_sleep; + +out_sleep: + wl1271_ps_elp_sleep(wl); +out: + mutex_unlock(&wl->mutex); +} + +static void wl1271_rx_streaming_timer(unsigned long data) +{ + struct wl1271 *wl = (struct wl1271 *)data; + ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work); +} + static void wl1271_conf_init(struct wl1271 *wl) { @@ -488,8 +628,24 @@ static void wl1271_conf_init(struct wl1271 *wl) /* apply driver default configuration */ memcpy(&wl->conf, &default_conf, sizeof(default_conf)); -} + /* Adjust settings according to optional module parameters */ + if (fwlog_param) { + if (!strcmp(fwlog_param, "continuous")) { + wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS; + } else if (!strcmp(fwlog_param, "ondemand")) { + wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND; + } else if (!strcmp(fwlog_param, "dbgpins")) { + wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS; + wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS; + } else if (!strcmp(fwlog_param, "disable")) { + wl->conf.fwlog.mem_blocks = 0; + wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE; + } else { + wl1271_error("Unknown fwlog parameter %s", fwlog_param); + } + } +} static int wl1271_plt_init(struct wl1271 *wl) { @@ -741,7 +897,7 @@ static void wl1271_flush_deferred_work(struct wl1271 *wl) /* Return sent skbs to the network stack */ while ((skb = skb_dequeue(&wl->deferred_tx_queue))) - ieee80211_tx_status(wl->hw, skb); + ieee80211_tx_status_ni(wl->hw, skb); } static void wl1271_netstack_work(struct work_struct *work) @@ -808,7 +964,7 @@ irqreturn_t wl1271_irq(int irq, void *cookie) if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) { wl1271_error("watchdog interrupt received! " "starting recovery."); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); /* restarting the chip. ignore any other interrupt. */ goto out; @@ -970,6 +1126,89 @@ out: return ret; } +void wl12xx_queue_recovery_work(struct wl1271 *wl) +{ + if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) + ieee80211_queue_work(wl->hw, &wl->recovery_work); +} + +size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen) +{ + size_t len = 0; + + /* The FW log is a length-value list, find where the log end */ + while (len < maxlen) { + if (memblock[len] == 0) + break; + if (len + memblock[len] + 1 > maxlen) + break; + len += memblock[len] + 1; + } + + /* Make sure we have enough room */ + len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size)); + + /* Fill the FW log file, consumed by the sysfs fwlog entry */ + memcpy(wl->fwlog + wl->fwlog_size, memblock, len); + wl->fwlog_size += len; + + return len; +} + +static void wl12xx_read_fwlog_panic(struct wl1271 *wl) +{ + u32 addr; + u32 first_addr; + u8 *block; + + if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) || + (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) || + (wl->conf.fwlog.mem_blocks == 0)) + return; + + wl1271_info("Reading FW panic log"); + + block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL); + if (!block) + return; + + /* + * Make sure the chip is awake and the logger isn't active. + * This might fail if the firmware hanged. + */ + if (!wl1271_ps_elp_wakeup(wl)) + wl12xx_cmd_stop_fwlog(wl); + + /* Read the first memory block address */ + wl1271_fw_status(wl, wl->fw_status); + first_addr = __le32_to_cpu(wl->fw_status->sta.log_start_addr); + if (!first_addr) + goto out; + + /* Traverse the memory blocks linked list */ + addr = first_addr; + do { + memset(block, 0, WL12XX_HW_BLOCK_SIZE); + wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE, + false); + + /* + * Memory blocks are linked to one another. The first 4 bytes + * of each memory block hold the hardware address of the next + * one. The last memory block points to the first one. + */ + addr = __le32_to_cpup((__le32 *)block); + if (!wl12xx_copy_fwlog(wl, block + sizeof(addr), + WL12XX_HW_BLOCK_SIZE - sizeof(addr))) + break; + } while (addr && (addr != first_addr)); + + wake_up_interruptible(&wl->fwlog_waitq); + +out: + kfree(block); +} + static void wl1271_recovery_work(struct work_struct *work) { struct wl1271 *wl = @@ -980,6 +1219,11 @@ static void wl1271_recovery_work(struct work_struct *work) if (wl->state != WL1271_STATE_ON) goto out; + /* Avoid a recursive recovery */ + set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags); + + wl12xx_read_fwlog_panic(wl); + wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x", wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4)); @@ -996,6 +1240,9 @@ static void wl1271_recovery_work(struct work_struct *work) /* reboot the chipset */ __wl1271_op_remove_interface(wl, false); + + clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags); + ieee80211_restart_hw(wl->hw); /* @@ -1074,9 +1321,13 @@ static int wl1271_chip_wakeup(struct wl1271 *wl) wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)", wl->chip.id); - /* end-of-transaction flag should be set in wl127x AP mode */ + /* + * 'end-of-transaction flag' and 'LPD mode flag' + * should be set in wl127x AP mode only + */ if (wl->bss_type == BSS_TYPE_AP_BSS) - wl->quirks |= WL12XX_QUIRK_END_OF_TRANSACTION; + wl->quirks |= (WL12XX_QUIRK_END_OF_TRANSACTION | + WL12XX_QUIRK_LPD_MODE); ret = wl1271_setup(wl); if (ret < 0) @@ -1089,6 +1340,7 @@ static int wl1271_chip_wakeup(struct wl1271 *wl) ret = wl1271_setup(wl); if (ret < 0) goto out; + if (wl1271_set_block_size(wl)) wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT; break; @@ -1117,24 +1369,6 @@ out: return ret; } -static unsigned int wl1271_get_fw_ver_quirks(struct wl1271 *wl) -{ - unsigned int quirks = 0; - unsigned int *fw_ver = wl->chip.fw_ver; - - /* Only for wl127x */ - if ((fw_ver[FW_VER_CHIP] == FW_VER_CHIP_WL127X) && - /* Check STA version */ - (((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) && - (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_STA_MIN)) || - /* Check AP version */ - ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP) && - (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_1_SPARE_AP_MIN)))) - quirks |= WL12XX_QUIRK_USE_2_SPARE_BLOCKS; - - return quirks; -} - int wl1271_plt_start(struct wl1271 *wl) { int retries = WL1271_BOOT_RETRIES; @@ -1171,8 +1405,6 @@ int wl1271_plt_start(struct wl1271 *wl) wl1271_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver_str); - /* Check if any quirks are needed with older fw versions */ - wl->quirks |= wl1271_get_fw_ver_quirks(wl); goto out; irq_disable: @@ -1352,13 +1584,10 @@ static struct notifier_block wl1271_dev_notifier = { }; #ifdef CONFIG_PM -static int wl1271_configure_suspend(struct wl1271 *wl) +static int wl1271_configure_suspend_sta(struct wl1271 *wl) { int ret; - if (wl->bss_type != BSS_TYPE_STA_BSS) - return 0; - mutex_lock(&wl->mutex); ret = wl1271_ps_elp_wakeup(wl); @@ -1403,11 +1632,41 @@ out: } +static int wl1271_configure_suspend_ap(struct wl1271 *wl) +{ + int ret; + + mutex_lock(&wl->mutex); + + ret = wl1271_ps_elp_wakeup(wl); + if (ret < 0) + goto out_unlock; + + ret = wl1271_acx_set_ap_beacon_filter(wl, true); + + wl1271_ps_elp_sleep(wl); +out_unlock: + mutex_unlock(&wl->mutex); + return ret; + +} + +static int wl1271_configure_suspend(struct wl1271 *wl) +{ + if (wl->bss_type == BSS_TYPE_STA_BSS) + return wl1271_configure_suspend_sta(wl); + if (wl->bss_type == BSS_TYPE_AP_BSS) + return wl1271_configure_suspend_ap(wl); + return 0; +} + static void wl1271_configure_resume(struct wl1271 *wl) { int ret; + bool is_sta = wl->bss_type == BSS_TYPE_STA_BSS; + bool is_ap = wl->bss_type == BSS_TYPE_AP_BSS; - if (wl->bss_type != BSS_TYPE_STA_BSS) + if (!is_sta && !is_ap) return; mutex_lock(&wl->mutex); @@ -1415,10 +1674,14 @@ static void wl1271_configure_resume(struct wl1271 *wl) if (ret < 0) goto out; - /* exit psm if it wasn't configured */ - if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) - wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE, - wl->basic_rate, true); + if (is_sta) { + /* exit psm if it wasn't configured */ + if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) + wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE, + wl->basic_rate, true); + } else if (is_ap) { + wl1271_acx_set_ap_beacon_filter(wl, false); + } wl1271_ps_elp_sleep(wl); out: @@ -1429,69 +1692,69 @@ static int wl1271_op_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) { struct wl1271 *wl = hw->priv; + int ret; + wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow); - wl->wow_enabled = !!wow; - if (wl->wow_enabled) { - int ret; - ret = wl1271_configure_suspend(wl); - if (ret < 0) { - wl1271_warning("couldn't prepare device to suspend"); - return ret; - } - /* flush any remaining work */ - wl1271_debug(DEBUG_MAC80211, "flushing remaining works"); - flush_delayed_work(&wl->scan_complete_work); + WARN_ON(!wow || !wow->any); - /* - * disable and re-enable interrupts in order to flush - * the threaded_irq - */ - wl1271_disable_interrupts(wl); + wl->wow_enabled = true; + ret = wl1271_configure_suspend(wl); + if (ret < 0) { + wl1271_warning("couldn't prepare device to suspend"); + return ret; + } + /* flush any remaining work */ + wl1271_debug(DEBUG_MAC80211, "flushing remaining works"); + flush_delayed_work(&wl->scan_complete_work); - /* - * set suspended flag to avoid triggering a new threaded_irq - * work. no need for spinlock as interrupts are disabled. - */ - set_bit(WL1271_FLAG_SUSPENDED, &wl->flags); + /* + * disable and re-enable interrupts in order to flush + * the threaded_irq + */ + wl1271_disable_interrupts(wl); + + /* + * set suspended flag to avoid triggering a new threaded_irq + * work. no need for spinlock as interrupts are disabled. + */ + set_bit(WL1271_FLAG_SUSPENDED, &wl->flags); + + wl1271_enable_interrupts(wl); + flush_work(&wl->tx_work); + flush_delayed_work(&wl->pspoll_work); + flush_delayed_work(&wl->elp_work); - wl1271_enable_interrupts(wl); - flush_work(&wl->tx_work); - flush_delayed_work(&wl->pspoll_work); - flush_delayed_work(&wl->elp_work); - } return 0; } static int wl1271_op_resume(struct ieee80211_hw *hw) { struct wl1271 *wl = hw->priv; + unsigned long flags; + bool run_irq_work = false; + wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d", wl->wow_enabled); + WARN_ON(!wl->wow_enabled); /* * re-enable irq_work enqueuing, and call irq_work directly if * there is a pending work. */ - if (wl->wow_enabled) { - struct wl1271 *wl = hw->priv; - unsigned long flags; - bool run_irq_work = false; - - spin_lock_irqsave(&wl->wl_lock, flags); - clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags); - if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags)) - run_irq_work = true; - spin_unlock_irqrestore(&wl->wl_lock, flags); - - if (run_irq_work) { - wl1271_debug(DEBUG_MAC80211, - "run postponed irq_work directly"); - wl1271_irq(0, wl); - wl1271_enable_interrupts(wl); - } + spin_lock_irqsave(&wl->wl_lock, flags); + clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags); + if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags)) + run_irq_work = true; + spin_unlock_irqrestore(&wl->wl_lock, flags); - wl1271_configure_resume(wl); + if (run_irq_work) { + wl1271_debug(DEBUG_MAC80211, + "run postponed irq_work directly"); + wl1271_irq(0, wl); + wl1271_enable_interrupts(wl); } + wl1271_configure_resume(wl); + wl->wow_enabled = false; return 0; } @@ -1629,9 +1892,6 @@ power_off: strncpy(wiphy->fw_version, wl->chip.fw_ver_str, sizeof(wiphy->fw_version)); - /* Check if any quirks are needed with older fw versions */ - wl->quirks |= wl1271_get_fw_ver_quirks(wl); - /* * Now we know if 11a is supported (info from the NVS), so disable * 11a channels if not supported @@ -1694,6 +1954,9 @@ static void __wl1271_op_remove_interface(struct wl1271 *wl, cancel_delayed_work_sync(&wl->scan_complete_work); cancel_work_sync(&wl->netstack_work); cancel_work_sync(&wl->tx_work); + del_timer_sync(&wl->rx_streaming_timer); + cancel_work_sync(&wl->rx_streaming_enable_work); + cancel_work_sync(&wl->rx_streaming_disable_work); cancel_delayed_work_sync(&wl->pspoll_work); cancel_delayed_work_sync(&wl->elp_work); @@ -2780,24 +3043,6 @@ static void wl1271_bss_info_changed_ap(struct wl1271 *wl, } } - if (changed & BSS_CHANGED_IBSS) { - wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d", - bss_conf->ibss_joined); - - if (bss_conf->ibss_joined) { - u32 rates = bss_conf->basic_rates; - wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl, - rates); - wl->basic_rate = wl1271_tx_min_rate_get(wl); - - /* by default, use 11b rates */ - wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES; - ret = wl1271_acx_sta_rate_policies(wl); - if (ret < 0) - goto out; - } - } - ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed); if (ret < 0) goto out; @@ -3023,6 +3268,24 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, } } + if (changed & BSS_CHANGED_IBSS) { + wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d", + bss_conf->ibss_joined); + + if (bss_conf->ibss_joined) { + u32 rates = bss_conf->basic_rates; + wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl, + rates); + wl->basic_rate = wl1271_tx_min_rate_get(wl); + + /* by default, use 11b rates */ + wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES; + ret = wl1271_acx_sta_rate_policies(wl); + if (ret < 0) + goto out; + } + } + ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed); if (ret < 0) goto out; @@ -3061,6 +3324,7 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, wl1271_warning("cmd join failed %d", ret); goto out; } + wl1271_check_operstate(wl, ieee80211_get_operstate(vif)); } out: @@ -3784,6 +4048,69 @@ static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev, static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR, wl1271_sysfs_show_hw_pg_ver, NULL); +static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buffer, loff_t pos, size_t count) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct wl1271 *wl = dev_get_drvdata(dev); + ssize_t len; + int ret; + + ret = mutex_lock_interruptible(&wl->mutex); + if (ret < 0) + return -ERESTARTSYS; + + /* Let only one thread read the log at a time, blocking others */ + while (wl->fwlog_size == 0) { + DEFINE_WAIT(wait); + + prepare_to_wait_exclusive(&wl->fwlog_waitq, + &wait, + TASK_INTERRUPTIBLE); + + if (wl->fwlog_size != 0) { + finish_wait(&wl->fwlog_waitq, &wait); + break; + } + + mutex_unlock(&wl->mutex); + + schedule(); + finish_wait(&wl->fwlog_waitq, &wait); + + if (signal_pending(current)) + return -ERESTARTSYS; + + ret = mutex_lock_interruptible(&wl->mutex); + if (ret < 0) + return -ERESTARTSYS; + } + + /* Check if the fwlog is still valid */ + if (wl->fwlog_size < 0) { + mutex_unlock(&wl->mutex); + return 0; + } + + /* Seeking is not supported - old logs are not kept. Disregard pos. */ + len = min(count, (size_t)wl->fwlog_size); + wl->fwlog_size -= len; + memcpy(buffer, wl->fwlog, len); + + /* Make room for new messages */ + memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size); + + mutex_unlock(&wl->mutex); + + return len; +} + +static struct bin_attribute fwlog_attr = { + .attr = {.name = "fwlog", .mode = S_IRUSR}, + .read = wl1271_sysfs_read_fwlog, +}; + int wl1271_register_hw(struct wl1271 *wl) { int ret; @@ -3964,6 +4291,17 @@ struct ieee80211_hw *wl1271_alloc_hw(void) INIT_WORK(&wl->tx_work, wl1271_tx_work); INIT_WORK(&wl->recovery_work, wl1271_recovery_work); INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work); + INIT_WORK(&wl->rx_streaming_enable_work, + wl1271_rx_streaming_enable_work); + INIT_WORK(&wl->rx_streaming_disable_work, + wl1271_rx_streaming_disable_work); + + wl->freezable_wq = create_freezable_workqueue("wl12xx_wq"); + if (!wl->freezable_wq) { + ret = -ENOMEM; + goto err_hw; + } + wl->channel = WL1271_DEFAULT_CHANNEL; wl->beacon_int = WL1271_DEFAULT_BEACON_INT; wl->default_key = 0; @@ -3989,6 +4327,10 @@ struct ieee80211_hw *wl1271_alloc_hw(void) wl->quirks = 0; wl->platform_quirks = 0; wl->sched_scanning = false; + setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer, + (unsigned long) wl); + wl->fwlog_size = 0; + init_waitqueue_head(&wl->fwlog_waitq); memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map)); for (i = 0; i < ACX_TX_DESCRIPTORS; i++) @@ -4006,7 +4348,7 @@ struct ieee80211_hw *wl1271_alloc_hw(void) wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order); if (!wl->aggr_buf) { ret = -ENOMEM; - goto err_hw; + goto err_wq; } wl->dummy_packet = wl12xx_alloc_dummy_packet(wl); @@ -4015,11 +4357,18 @@ struct ieee80211_hw *wl1271_alloc_hw(void) goto err_aggr; } + /* Allocate one page for the FW log */ + wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL); + if (!wl->fwlog) { + ret = -ENOMEM; + goto err_dummy_packet; + } + /* Register platform device */ ret = platform_device_register(wl->plat_dev); if (ret) { wl1271_error("couldn't register platform device"); - goto err_dummy_packet; + goto err_fwlog; } dev_set_drvdata(&wl->plat_dev->dev, wl); @@ -4037,20 +4386,36 @@ struct ieee80211_hw *wl1271_alloc_hw(void) goto err_bt_coex_state; } + /* Create sysfs file for the FW log */ + ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr); + if (ret < 0) { + wl1271_error("failed to create sysfs file fwlog"); + goto err_hw_pg_ver; + } + return hw; +err_hw_pg_ver: + device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver); + err_bt_coex_state: device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state); err_platform: platform_device_unregister(wl->plat_dev); +err_fwlog: + free_page((unsigned long)wl->fwlog); + err_dummy_packet: dev_kfree_skb(wl->dummy_packet); err_aggr: free_pages((unsigned long)wl->aggr_buf, order); +err_wq: + destroy_workqueue(wl->freezable_wq); + err_hw: wl1271_debugfs_exit(wl); kfree(plat_dev); @@ -4066,7 +4431,15 @@ EXPORT_SYMBOL_GPL(wl1271_alloc_hw); int wl1271_free_hw(struct wl1271 *wl) { + /* Unblock any fwlog readers */ + mutex_lock(&wl->mutex); + wl->fwlog_size = -1; + wake_up_interruptible_all(&wl->fwlog_waitq); + mutex_unlock(&wl->mutex); + + device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr); platform_device_unregister(wl->plat_dev); + free_page((unsigned long)wl->fwlog); dev_kfree_skb(wl->dummy_packet); free_pages((unsigned long)wl->aggr_buf, get_order(WL1271_AGGR_BUFFER_SIZE)); @@ -4081,6 +4454,7 @@ int wl1271_free_hw(struct wl1271 *wl) kfree(wl->fw_status); kfree(wl->tx_res_if); + destroy_workqueue(wl->freezable_wq); ieee80211_free_hw(wl->hw); @@ -4093,6 +4467,10 @@ EXPORT_SYMBOL_GPL(wl12xx_debug_level); module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR); MODULE_PARM_DESC(debug_level, "wl12xx debugging level"); +module_param_named(fwlog, fwlog_param, charp, 0); +MODULE_PARM_DESC(keymap, + "FW logger options: continuous, ondemand, dbgpins or disable"); + MODULE_LICENSE("GPL"); MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>"); MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>"); diff --git a/drivers/net/wireless/wl12xx/ps.c b/drivers/net/wireless/wl12xx/ps.c index b59b6771..3e68a66 100644 --- a/drivers/net/wireless/wl12xx/ps.c +++ b/drivers/net/wireless/wl12xx/ps.c @@ -118,7 +118,7 @@ int wl1271_ps_elp_wakeup(struct wl1271 *wl) &compl, msecs_to_jiffies(WL1271_WAKEUP_TIMEOUT)); if (ret == 0) { wl1271_error("ELP wakeup timeout!"); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); ret = -ETIMEDOUT; goto err; } else if (ret < 0) { @@ -169,9 +169,11 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode, wl1271_debug(DEBUG_PSM, "leaving psm"); /* disable beacon early termination */ - ret = wl1271_acx_bet_enable(wl, false); - if (ret < 0) - return ret; + if (wl->band == IEEE80211_BAND_2GHZ) { + ret = wl1271_acx_bet_enable(wl, false); + if (ret < 0) + return ret; + } /* disable beacon filtering */ ret = wl1271_acx_beacon_filter_opt(wl, false); @@ -202,7 +204,7 @@ static void wl1271_ps_filter_frames(struct wl1271 *wl, u8 hlid) info = IEEE80211_SKB_CB(skb); info->flags |= IEEE80211_TX_STAT_TX_FILTERED; info->status.rates[0].idx = -1; - ieee80211_tx_status(wl->hw, skb); + ieee80211_tx_status_ni(wl->hw, skb); filtered++; } } diff --git a/drivers/net/wireless/wl12xx/rx.c b/drivers/net/wireless/wl12xx/rx.c index 7009103..0450fb4 100644 --- a/drivers/net/wireless/wl12xx/rx.c +++ b/drivers/net/wireless/wl12xx/rx.c @@ -22,6 +22,7 @@ */ #include <linux/gfp.h> +#include <linux/sched.h> #include "wl12xx.h" #include "acx.h" @@ -95,6 +96,7 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length) struct ieee80211_hdr *hdr; u8 *buf; u8 beacon = 0; + u8 is_data = 0; /* * In PLT mode we seem to get frames and mac80211 warns about them, @@ -106,6 +108,13 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length) /* the data read starts with the descriptor */ desc = (struct wl1271_rx_descriptor *) data; + if (desc->packet_class == WL12XX_RX_CLASS_LOGGER) { + size_t len = length - sizeof(*desc); + wl12xx_copy_fwlog(wl, data + sizeof(*desc), len); + wake_up_interruptible(&wl->fwlog_waitq); + return 0; + } + switch (desc->status & WL1271_RX_DESC_STATUS_MASK) { /* discard corrupted packets */ case WL1271_RX_DESC_DRIVER_RX_Q_FAIL: @@ -137,6 +146,8 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length) hdr = (struct ieee80211_hdr *)skb->data; if (ieee80211_is_beacon(hdr->frame_control)) beacon = 1; + if (ieee80211_is_data_present(hdr->frame_control)) + is_data = 1; wl1271_rx_status(wl, desc, IEEE80211_SKB_RXCB(skb), beacon); @@ -147,9 +158,9 @@ static int wl1271_rx_handle_data(struct wl1271 *wl, u8 *data, u32 length) skb_trim(skb, skb->len - desc->pad_len); skb_queue_tail(&wl->deferred_rx_queue, skb); - ieee80211_queue_work(wl->hw, &wl->netstack_work); + queue_work(wl->freezable_wq, &wl->netstack_work); - return 0; + return is_data; } void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status) @@ -162,6 +173,8 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status) u32 mem_block; u32 pkt_length; u32 pkt_offset; + bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS); + bool had_data = false; while (drv_rx_counter != fw_rx_counter) { buf_size = 0; @@ -214,9 +227,11 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status) * conditions, in that case the received frame will just * be dropped. */ - wl1271_rx_handle_data(wl, - wl->aggr_buf + pkt_offset, - pkt_length); + if (wl1271_rx_handle_data(wl, + wl->aggr_buf + pkt_offset, + pkt_length) == 1) + had_data = true; + wl->rx_counter++; drv_rx_counter++; drv_rx_counter &= NUM_RX_PKT_DESC_MOD_MASK; @@ -230,6 +245,20 @@ void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_common_status *status) */ if (wl->quirks & WL12XX_QUIRK_END_OF_TRANSACTION) wl1271_write32(wl, RX_DRIVER_COUNTER_ADDRESS, wl->rx_counter); + + if (!is_ap && wl->conf.rx_streaming.interval && had_data && + (wl->conf.rx_streaming.always || + test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) { + u32 timeout = wl->conf.rx_streaming.duration; + + /* restart rx streaming */ + if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags)) + ieee80211_queue_work(wl->hw, + &wl->rx_streaming_enable_work); + + mod_timer(&wl->rx_streaming_timer, + jiffies + msecs_to_jiffies(timeout)); + } } void wl1271_set_default_filters(struct wl1271 *wl) diff --git a/drivers/net/wireless/wl12xx/rx.h b/drivers/net/wireless/wl12xx/rx.h index 75fabf8..c88e3fa 100644 --- a/drivers/net/wireless/wl12xx/rx.h +++ b/drivers/net/wireless/wl12xx/rx.h @@ -97,6 +97,18 @@ #define RX_BUF_SIZE_MASK 0xFFF00 #define RX_BUF_SIZE_SHIFT_DIV 6 +enum { + WL12XX_RX_CLASS_UNKNOWN, + WL12XX_RX_CLASS_MANAGEMENT, + WL12XX_RX_CLASS_DATA, + WL12XX_RX_CLASS_QOS_DATA, + WL12XX_RX_CLASS_BCN_PRBRSP, + WL12XX_RX_CLASS_EAPOL, + WL12XX_RX_CLASS_BA_EVENT, + WL12XX_RX_CLASS_AMSDU, + WL12XX_RX_CLASS_LOGGER, +}; + struct wl1271_rx_descriptor { __le16 length; u8 status; diff --git a/drivers/net/wireless/wl12xx/scan.c b/drivers/net/wireless/wl12xx/scan.c index 56f76ab..5e5c66d 100644 --- a/drivers/net/wireless/wl12xx/scan.c +++ b/drivers/net/wireless/wl12xx/scan.c @@ -62,7 +62,7 @@ void wl1271_scan_complete_work(struct work_struct *work) if (wl->scan.failed) { wl1271_info("Scan completed due to error."); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); } out: @@ -326,7 +326,7 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl, struct cfg80211_sched_scan_request *req, struct conn_scan_ch_params *channels, u32 band, bool radar, bool passive, - int start) + int start, int max_channels) { struct conf_sched_scan_settings *c = &wl->conf.sched_scan; int i, j; @@ -334,7 +334,7 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl, bool force_passive = !req->n_ssids; for (i = 0, j = start; - i < req->n_channels && j < MAX_CHANNELS_ALL_BANDS; + i < req->n_channels && j < max_channels; i++) { flags = req->channels[i]->flags; @@ -380,46 +380,42 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl, return j - start; } -static int +static bool wl1271_scan_sched_scan_channels(struct wl1271 *wl, struct cfg80211_sched_scan_request *req, struct wl1271_cmd_sched_scan_config *cfg) { - int idx = 0; - cfg->passive[0] = - wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels, + wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2, IEEE80211_BAND_2GHZ, - false, true, idx); - idx += cfg->passive[0]; - + false, true, 0, + MAX_CHANNELS_2GHZ); cfg->active[0] = - wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels, + wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_2, IEEE80211_BAND_2GHZ, - false, false, idx); - /* - * 5GHz channels always start at position 14, not immediately - * after the last 2.4GHz channel - */ - idx = 14; - + false, false, + cfg->passive[0], + MAX_CHANNELS_2GHZ); cfg->passive[1] = - wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels, + wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5, IEEE80211_BAND_5GHZ, - false, true, idx); - idx += cfg->passive[1]; - + false, true, 0, + MAX_CHANNELS_5GHZ); cfg->dfs = - wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels, + wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5, IEEE80211_BAND_5GHZ, - true, true, idx); - idx += cfg->dfs; - + true, true, + cfg->passive[1], + MAX_CHANNELS_5GHZ); cfg->active[1] = - wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels, + wl1271_scan_get_sched_scan_channels(wl, req, cfg->channels_5, IEEE80211_BAND_5GHZ, - false, false, idx); - idx += cfg->active[1]; + false, false, + cfg->passive[1] + cfg->dfs, + MAX_CHANNELS_5GHZ); + /* 802.11j channels are not supported yet */ + cfg->passive[2] = 0; + cfg->active[2] = 0; wl1271_debug(DEBUG_SCAN, " 2.4GHz: active %d passive %d", cfg->active[0], cfg->passive[0]); @@ -427,7 +423,9 @@ wl1271_scan_sched_scan_channels(struct wl1271 *wl, cfg->active[1], cfg->passive[1]); wl1271_debug(DEBUG_SCAN, " DFS: %d", cfg->dfs); - return idx; + return cfg->passive[0] || cfg->active[0] || + cfg->passive[1] || cfg->active[1] || cfg->dfs || + cfg->passive[2] || cfg->active[2]; } int wl1271_scan_sched_scan_config(struct wl1271 *wl, @@ -436,7 +434,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl, { struct wl1271_cmd_sched_scan_config *cfg = NULL; struct conf_sched_scan_settings *c = &wl->conf.sched_scan; - int i, total_channels, ret; + int i, ret; bool force_passive = !req->n_ssids; wl1271_debug(DEBUG_CMD, "cmd sched_scan scan config"); @@ -471,8 +469,7 @@ int wl1271_scan_sched_scan_config(struct wl1271 *wl, cfg->ssid_len = 0; } - total_channels = wl1271_scan_sched_scan_channels(wl, req, cfg); - if (total_channels == 0) { + if (!wl1271_scan_sched_scan_channels(wl, req, cfg)) { wl1271_error("scan channel list is empty"); ret = -EINVAL; goto out; diff --git a/drivers/net/wireless/wl12xx/scan.h b/drivers/net/wireless/wl12xx/scan.h index a0b6c5d..ca81de2 100644 --- a/drivers/net/wireless/wl12xx/scan.h +++ b/drivers/net/wireless/wl12xx/scan.h @@ -112,19 +112,14 @@ struct wl1271_cmd_trigger_scan_to { __le32 timeout; } __packed; -#define MAX_CHANNELS_ALL_BANDS 41 +#define MAX_CHANNELS_2GHZ 14 +#define MAX_CHANNELS_5GHZ 23 +#define MAX_CHANNELS_4GHZ 4 + #define SCAN_MAX_CYCLE_INTERVALS 16 #define SCAN_MAX_BANDS 3 enum { - SCAN_CHANNEL_TYPE_2GHZ_PASSIVE, - SCAN_CHANNEL_TYPE_2GHZ_ACTIVE, - SCAN_CHANNEL_TYPE_5GHZ_PASSIVE, - SCAN_CHANNEL_TYPE_5GHZ_ACTIVE, - SCAN_CHANNEL_TYPE_5GHZ_DFS, -}; - -enum { SCAN_SSID_FILTER_ANY = 0, SCAN_SSID_FILTER_SPECIFIC = 1, SCAN_SSID_FILTER_LIST = 2, @@ -182,7 +177,9 @@ struct wl1271_cmd_sched_scan_config { u8 padding[3]; - struct conn_scan_ch_params channels[MAX_CHANNELS_ALL_BANDS]; + struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ]; + struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ]; + struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ]; } __packed; diff --git a/drivers/net/wireless/wl12xx/sdio.c b/drivers/net/wireless/wl12xx/sdio.c index 536e506..4dc4573 100644 --- a/drivers/net/wireless/wl12xx/sdio.c +++ b/drivers/net/wireless/wl12xx/sdio.c @@ -23,7 +23,6 @@ #include <linux/irq.h> #include <linux/module.h> -#include <linux/crc7.h> #include <linux/vmalloc.h> #include <linux/mmc/sdio_func.h> #include <linux/mmc/sdio_ids.h> @@ -45,7 +44,7 @@ #define SDIO_DEVICE_ID_TI_WL1271 0x4076 #endif -static const struct sdio_device_id wl1271_devices[] = { +static const struct sdio_device_id wl1271_devices[] __devinitconst = { { SDIO_DEVICE(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271) }, {} }; @@ -107,14 +106,6 @@ static void wl1271_sdio_enable_interrupts(struct wl1271 *wl) enable_irq(wl->irq); } -static void wl1271_sdio_reset(struct wl1271 *wl) -{ -} - -static void wl1271_sdio_init(struct wl1271 *wl) -{ -} - static void wl1271_sdio_raw_read(struct wl1271 *wl, int addr, void *buf, size_t len, bool fixed) { @@ -170,10 +161,12 @@ static int wl1271_sdio_power_on(struct wl1271 *wl) struct sdio_func *func = wl_to_func(wl); int ret; - /* Make sure the card will not be powered off by runtime PM */ - ret = pm_runtime_get_sync(&func->dev); - if (ret < 0) - goto out; + /* If enabled, tell runtime PM not to power off the card */ + if (pm_runtime_enabled(&func->dev)) { + ret = pm_runtime_get_sync(&func->dev); + if (ret) + goto out; + } /* Runtime PM might be disabled, so power up the card manually */ ret = mmc_power_restore_host(func->card->host); @@ -200,8 +193,11 @@ static int wl1271_sdio_power_off(struct wl1271 *wl) if (ret < 0) return ret; - /* Let runtime PM know the card is powered off */ - return pm_runtime_put_sync(&func->dev); + /* If enabled, let runtime PM know the card is powered off */ + if (pm_runtime_enabled(&func->dev)) + ret = pm_runtime_put_sync(&func->dev); + + return ret; } static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) @@ -215,8 +211,6 @@ static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) static struct wl1271_if_operations sdio_ops = { .read = wl1271_sdio_raw_read, .write = wl1271_sdio_raw_write, - .reset = wl1271_sdio_reset, - .init = wl1271_sdio_init, .power = wl1271_sdio_set_power, .dev = wl1271_sdio_wl_to_dev, .enable_irq = wl1271_sdio_enable_interrupts, @@ -278,17 +272,19 @@ static int __devinit wl1271_probe(struct sdio_func *func, goto out_free; } - enable_irq_wake(wl->irq); - device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); - - disable_irq(wl->irq); + ret = enable_irq_wake(wl->irq); + if (!ret) { + wl->irq_wake_enabled = true; + device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); - /* if sdio can keep power while host is suspended, enable wow */ - mmcflags = sdio_get_host_pm_caps(func); - wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); + /* if sdio can keep power while host is suspended, enable wow */ + mmcflags = sdio_get_host_pm_caps(func); + wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); - if (mmcflags & MMC_PM_KEEP_POWER) - hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; + if (mmcflags & MMC_PM_KEEP_POWER) + hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; + } + disable_irq(wl->irq); ret = wl1271_init_ieee80211(wl); if (ret) @@ -303,8 +299,6 @@ static int __devinit wl1271_probe(struct sdio_func *func, /* Tell PM core that we don't need the card to be powered now */ pm_runtime_put_noidle(&func->dev); - wl1271_notice("initialized"); - return 0; out_irq: @@ -324,8 +318,10 @@ static void __devexit wl1271_remove(struct sdio_func *func) pm_runtime_get_noresume(&func->dev); wl1271_unregister_hw(wl); - device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); - disable_irq_wake(wl->irq); + if (wl->irq_wake_enabled) { + device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); + disable_irq_wake(wl->irq); + } free_irq(wl->irq, wl); wl1271_free_hw(wl); } @@ -402,23 +398,12 @@ static struct sdio_driver wl1271_sdio_driver = { static int __init wl1271_init(void) { - int ret; - - ret = sdio_register_driver(&wl1271_sdio_driver); - if (ret < 0) { - wl1271_error("failed to register sdio driver: %d", ret); - goto out; - } - -out: - return ret; + return sdio_register_driver(&wl1271_sdio_driver); } static void __exit wl1271_exit(void) { sdio_unregister_driver(&wl1271_sdio_driver); - - wl1271_notice("unloaded"); } module_init(wl1271_init); diff --git a/drivers/net/wireless/wl12xx/spi.c b/drivers/net/wireless/wl12xx/spi.c index beebf64..e0b3736 100644 --- a/drivers/net/wireless/wl12xx/spi.c +++ b/drivers/net/wireless/wl12xx/spi.c @@ -436,8 +436,6 @@ static int __devinit wl1271_probe(struct spi_device *spi) if (ret) goto out_irq; - wl1271_notice("initialized"); - return 0; out_irq: @@ -474,23 +472,12 @@ static struct spi_driver wl1271_spi_driver = { static int __init wl1271_init(void) { - int ret; - - ret = spi_register_driver(&wl1271_spi_driver); - if (ret < 0) { - wl1271_error("failed to register spi driver: %d", ret); - goto out; - } - -out: - return ret; + return spi_register_driver(&wl1271_spi_driver); } static void __exit wl1271_exit(void) { spi_unregister_driver(&wl1271_spi_driver); - - wl1271_notice("unloaded"); } module_init(wl1271_init); diff --git a/drivers/net/wireless/wl12xx/testmode.c b/drivers/net/wireless/wl12xx/testmode.c index da351d7..5d5e1ef 100644 --- a/drivers/net/wireless/wl12xx/testmode.c +++ b/drivers/net/wireless/wl12xx/testmode.c @@ -260,7 +260,7 @@ static int wl1271_tm_cmd_recover(struct wl1271 *wl, struct nlattr *tb[]) { wl1271_debug(DEBUG_TESTMODE, "testmode cmd recover"); - ieee80211_queue_work(wl->hw, &wl->recovery_work); + wl12xx_queue_recovery_work(wl); return 0; } diff --git a/drivers/net/wireless/wl12xx/tx.c b/drivers/net/wireless/wl12xx/tx.c index ca3ab1c..200590c 100644 --- a/drivers/net/wireless/wl12xx/tx.c +++ b/drivers/net/wireless/wl12xx/tx.c @@ -562,17 +562,29 @@ static void wl1271_skb_queue_head(struct wl1271 *wl, struct sk_buff *skb) spin_unlock_irqrestore(&wl->wl_lock, flags); } +static bool wl1271_tx_is_data_present(struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); + + return ieee80211_is_data_present(hdr->frame_control); +} + void wl1271_tx_work_locked(struct wl1271 *wl) { struct sk_buff *skb; u32 buf_offset = 0; bool sent_packets = false; + bool had_data = false; + bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS); int ret; if (unlikely(wl->state == WL1271_STATE_OFF)) return; while ((skb = wl1271_skb_dequeue(wl))) { + if (wl1271_tx_is_data_present(skb)) + had_data = true; + ret = wl1271_prepare_tx_frame(wl, skb, buf_offset); if (ret == -EAGAIN) { /* @@ -619,6 +631,19 @@ out_ack: wl1271_handle_tx_low_watermark(wl); } + if (!is_ap && wl->conf.rx_streaming.interval && had_data && + (wl->conf.rx_streaming.always || + test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags))) { + u32 timeout = wl->conf.rx_streaming.duration; + + /* enable rx streaming */ + if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags)) + ieee80211_queue_work(wl->hw, + &wl->rx_streaming_enable_work); + + mod_timer(&wl->rx_streaming_timer, + jiffies + msecs_to_jiffies(timeout)); + } } void wl1271_tx_work(struct work_struct *work) @@ -702,7 +727,7 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl, /* return the packet to the stack */ skb_queue_tail(&wl->deferred_tx_queue, skb); - ieee80211_queue_work(wl->hw, &wl->netstack_work); + queue_work(wl->freezable_wq, &wl->netstack_work); wl1271_free_tx_id(wl, result->id); } @@ -757,7 +782,7 @@ void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid) info = IEEE80211_SKB_CB(skb); info->status.rates[0].idx = -1; info->status.rates[0].count = 0; - ieee80211_tx_status(wl->hw, skb); + ieee80211_tx_status_ni(wl->hw, skb); total++; } } @@ -795,7 +820,7 @@ void wl1271_tx_reset(struct wl1271 *wl, bool reset_tx_queues) info = IEEE80211_SKB_CB(skb); info->status.rates[0].idx = -1; info->status.rates[0].count = 0; - ieee80211_tx_status(wl->hw, skb); + ieee80211_tx_status_ni(wl->hw, skb); } } } @@ -838,7 +863,7 @@ void wl1271_tx_reset(struct wl1271 *wl, bool reset_tx_queues) info->status.rates[0].idx = -1; info->status.rates[0].count = 0; - ieee80211_tx_status(wl->hw, skb); + ieee80211_tx_status_ni(wl->hw, skb); } } } diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h index 3bc794a..d7db6e7 100644 --- a/drivers/net/wireless/wl12xx/wl12xx.h +++ b/drivers/net/wireless/wl12xx/wl12xx.h @@ -226,6 +226,8 @@ enum { #define FW_VER_MINOR_1_SPARE_STA_MIN 58 #define FW_VER_MINOR_1_SPARE_AP_MIN 47 +#define FW_VER_MINOR_FWLOG_STA_MIN 70 + struct wl1271_chip { u32 id; char fw_ver_str[ETHTOOL_BUSINFO_LEN]; @@ -284,8 +286,7 @@ struct wl1271_fw_sta_status { u8 tx_total; u8 reserved1; __le16 reserved2; - /* Total structure size is 68 bytes */ - u32 padding; + __le32 log_start_addr; } __packed; struct wl1271_fw_full_status { @@ -359,6 +360,9 @@ enum wl12xx_flags { WL1271_FLAG_DUMMY_PACKET_PENDING, WL1271_FLAG_SUSPENDED, WL1271_FLAG_PENDING_WORK, + WL1271_FLAG_SOFT_GEMINI, + WL1271_FLAG_RX_STREAMING_STARTED, + WL1271_FLAG_RECOVERY_IN_PROGRESS, }; struct wl1271_link { @@ -443,6 +447,7 @@ struct wl1271 { struct sk_buff_head deferred_tx_queue; struct work_struct tx_work; + struct workqueue_struct *freezable_wq; /* Pending TX frames */ unsigned long tx_frames_map[BITS_TO_LONGS(ACX_TX_DESCRIPTORS)]; @@ -468,6 +473,15 @@ struct wl1271 { /* Network stack work */ struct work_struct netstack_work; + /* FW log buffer */ + u8 *fwlog; + + /* Number of valid bytes in the FW log buffer */ + ssize_t fwlog_size; + + /* Sysfs FW log entry readers wait queue */ + wait_queue_head_t fwlog_waitq; + /* Hardware recovery work */ struct work_struct recovery_work; @@ -508,6 +522,11 @@ struct wl1271 { /* Default key (for WEP) */ u32 default_key; + /* Rx Streaming */ + struct work_struct rx_streaming_enable_work; + struct work_struct rx_streaming_disable_work; + struct timer_list rx_streaming_timer; + unsigned int filters; unsigned int rx_config; unsigned int rx_filter; @@ -573,6 +592,7 @@ struct wl1271 { * (currently, only "ANY" trigger is supported) */ bool wow_enabled; + bool irq_wake_enabled; /* * AP-mode - links indexed by HLID. The global and broadcast links @@ -602,6 +622,9 @@ struct wl1271_station { int wl1271_plt_start(struct wl1271 *wl); int wl1271_plt_stop(struct wl1271 *wl); +int wl1271_recalc_rx_streaming(struct wl1271 *wl); +void wl12xx_queue_recovery_work(struct wl1271 *wl); +size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen); #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */ @@ -637,4 +660,15 @@ int wl1271_plt_stop(struct wl1271 *wl); /* WL128X requires aggregated packets to be aligned to the SDIO block size */ #define WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT BIT(2) +/* + * WL127X AP mode requires Low Power DRPw (LPD) enable to reduce power + * consumption + */ +#define WL12XX_QUIRK_LPD_MODE BIT(3) + +/* Older firmwares did not implement the FW logger over bus feature */ +#define WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED BIT(4) + +#define WL12XX_HW_BLOCK_SIZE 256 + #endif diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig index ea15800..2acff43 100644 --- a/drivers/nfc/Kconfig +++ b/drivers/nfc/Kconfig @@ -2,17 +2,8 @@ # Near Field Communication (NFC) devices # -menuconfig NFC_DEVICES - bool "Near Field Communication (NFC) devices" - default n - ---help--- - You'll have to say Y if your computer contains an NFC device that - you want to use under Linux. - - You can say N here if you don't have any Near Field Communication - devices connected to your computer. - -if NFC_DEVICES +menu "Near Field Communication (NFC) devices" + depends on NFC config PN544_NFC tristate "PN544 NFC driver" @@ -26,5 +17,14 @@ config PN544_NFC To compile this driver as a module, choose m here. The module will be called pn544. +config NFC_PN533 + tristate "NXP PN533 USB driver" + depends on USB + help + NXP PN533 USB driver. + This driver provides support for NFC NXP PN533 devices. + + Say Y here to compile support for PN533 devices into the + kernel or say M to compile it as module (pn533). -endif # NFC_DEVICES +endmenu diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile index a4efb16..8ef446d 100644 --- a/drivers/nfc/Makefile +++ b/drivers/nfc/Makefile @@ -3,3 +3,6 @@ # obj-$(CONFIG_PN544_NFC) += pn544.o +obj-$(CONFIG_NFC_PN533) += pn533.o + +ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c new file mode 100644 index 0000000..0372315 --- /dev/null +++ b/drivers/nfc/pn533.c @@ -0,0 +1,1632 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/nfc.h> +#include <linux/netdevice.h> +#include <net/nfc.h> + +#define VERSION "0.1" + +#define PN533_VENDOR_ID 0x4CC +#define PN533_PRODUCT_ID 0x2533 + +#define SCM_VENDOR_ID 0x4E6 +#define SCL3711_PRODUCT_ID 0x5591 + +static const struct usb_device_id pn533_table[] = { + { USB_DEVICE(PN533_VENDOR_ID, PN533_PRODUCT_ID) }, + { USB_DEVICE(SCM_VENDOR_ID, SCL3711_PRODUCT_ID) }, + { } +}; +MODULE_DEVICE_TABLE(usb, pn533_table); + +/* frame definitions */ +#define PN533_FRAME_TAIL_SIZE 2 +#define PN533_FRAME_SIZE(f) (sizeof(struct pn533_frame) + f->datalen + \ + PN533_FRAME_TAIL_SIZE) +#define PN533_FRAME_ACK_SIZE (sizeof(struct pn533_frame) + 1) +#define PN533_FRAME_CHECKSUM(f) (f->data[f->datalen]) +#define PN533_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1]) + +/* start of frame */ +#define PN533_SOF 0x00FF + +/* frame identifier: in/out/error */ +#define PN533_FRAME_IDENTIFIER(f) (f->data[0]) +#define PN533_DIR_OUT 0xD4 +#define PN533_DIR_IN 0xD5 + +/* PN533 Commands */ +#define PN533_FRAME_CMD(f) (f->data[1]) +#define PN533_FRAME_CMD_PARAMS_PTR(f) (&f->data[2]) +#define PN533_FRAME_CMD_PARAMS_LEN(f) (f->datalen - 2) + +#define PN533_CMD_GET_FIRMWARE_VERSION 0x02 +#define PN533_CMD_RF_CONFIGURATION 0x32 +#define PN533_CMD_IN_DATA_EXCHANGE 0x40 +#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A +#define PN533_CMD_IN_ATR 0x50 +#define PN533_CMD_IN_RELEASE 0x52 + +#define PN533_CMD_RESPONSE(cmd) (cmd + 1) + +/* PN533 Return codes */ +#define PN533_CMD_RET_MASK 0x3F +#define PN533_CMD_MI_MASK 0x40 +#define PN533_CMD_RET_SUCCESS 0x00 + +struct pn533; + +typedef int (*pn533_cmd_complete_t) (struct pn533 *dev, void *arg, + u8 *params, int params_len); + +/* structs for pn533 commands */ + +/* PN533_CMD_GET_FIRMWARE_VERSION */ +struct pn533_fw_version { + u8 ic; + u8 ver; + u8 rev; + u8 support; +}; + +/* PN533_CMD_RF_CONFIGURATION */ +#define PN533_CFGITEM_MAX_RETRIES 0x05 + +#define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00 +#define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF + +struct pn533_config_max_retries { + u8 mx_rty_atr; + u8 mx_rty_psl; + u8 mx_rty_passive_act; +} __packed; + +/* PN533_CMD_IN_LIST_PASSIVE_TARGET */ + +/* felica commands opcode */ +#define PN533_FELICA_OPC_SENSF_REQ 0 +#define PN533_FELICA_OPC_SENSF_RES 1 +/* felica SENSF_REQ parameters */ +#define PN533_FELICA_SENSF_SC_ALL 0xFFFF +#define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0 +#define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1 +#define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2 + +/* type B initiator_data values */ +#define PN533_TYPE_B_AFI_ALL_FAMILIES 0 +#define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0 +#define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1 + +union pn533_cmd_poll_initdata { + struct { + u8 afi; + u8 polling_method; + } __packed type_b; + struct { + u8 opcode; + __be16 sc; + u8 rc; + u8 tsn; + } __packed felica; +}; + +/* Poll modulations */ +enum { + PN533_POLL_MOD_106KBPS_A, + PN533_POLL_MOD_212KBPS_FELICA, + PN533_POLL_MOD_424KBPS_FELICA, + PN533_POLL_MOD_106KBPS_JEWEL, + PN533_POLL_MOD_847KBPS_B, + + __PN533_POLL_MOD_AFTER_LAST, +}; +#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1) + +struct pn533_poll_modulations { + struct { + u8 maxtg; + u8 brty; + union pn533_cmd_poll_initdata initiator_data; + } __packed data; + u8 len; +}; + +const struct pn533_poll_modulations poll_mod[] = { + [PN533_POLL_MOD_106KBPS_A] = { + .data = { + .maxtg = 1, + .brty = 0, + }, + .len = 2, + }, + [PN533_POLL_MOD_212KBPS_FELICA] = { + .data = { + .maxtg = 1, + .brty = 1, + .initiator_data.felica = { + .opcode = PN533_FELICA_OPC_SENSF_REQ, + .sc = PN533_FELICA_SENSF_SC_ALL, + .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE, + .tsn = 0, + }, + }, + .len = 7, + }, + [PN533_POLL_MOD_424KBPS_FELICA] = { + .data = { + .maxtg = 1, + .brty = 2, + .initiator_data.felica = { + .opcode = PN533_FELICA_OPC_SENSF_REQ, + .sc = PN533_FELICA_SENSF_SC_ALL, + .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE, + .tsn = 0, + }, + }, + .len = 7, + }, + [PN533_POLL_MOD_106KBPS_JEWEL] = { + .data = { + .maxtg = 1, + .brty = 4, + }, + .len = 2, + }, + [PN533_POLL_MOD_847KBPS_B] = { + .data = { + .maxtg = 1, + .brty = 8, + .initiator_data.type_b = { + .afi = PN533_TYPE_B_AFI_ALL_FAMILIES, + .polling_method = + PN533_TYPE_B_POLL_METHOD_TIMESLOT, + }, + }, + .len = 3, + }, +}; + +/* PN533_CMD_IN_ATR */ + +struct pn533_cmd_activate_param { + u8 tg; + u8 next; +} __packed; + +struct pn533_cmd_activate_response { + u8 status; + u8 nfcid3t[10]; + u8 didt; + u8 bst; + u8 brt; + u8 to; + u8 ppt; + /* optional */ + u8 gt[]; +} __packed; + + +struct pn533 { + struct usb_device *udev; + struct usb_interface *interface; + struct nfc_dev *nfc_dev; + + struct urb *out_urb; + int out_maxlen; + struct pn533_frame *out_frame; + + struct urb *in_urb; + int in_maxlen; + struct pn533_frame *in_frame; + + struct tasklet_struct tasklet; + struct pn533_frame *tklt_in_frame; + int tklt_in_error; + + pn533_cmd_complete_t cmd_complete; + void *cmd_complete_arg; + struct semaphore cmd_lock; + u8 cmd; + + struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1]; + u8 poll_mod_count; + u8 poll_mod_curr; + u32 poll_protocols; + + u8 tgt_available_prots; + u8 tgt_active_prot; +}; + +struct pn533_frame { + u8 preamble; + __be16 start_frame; + u8 datalen; + u8 datalen_checksum; + u8 data[]; +} __packed; + +/* The rule: value + checksum = 0 */ +static inline u8 pn533_checksum(u8 value) +{ + return ~value + 1; +} + +/* The rule: sum(data elements) + checksum = 0 */ +static u8 pn533_data_checksum(u8 *data, int datalen) +{ + u8 sum = 0; + int i; + + for (i = 0; i < datalen; i++) + sum += data[i]; + + return pn533_checksum(sum); +} + +/** + * pn533_tx_frame_ack - create a ack frame + * @frame: The frame to be set as ack + * + * Ack is different type of standard frame. As a standard frame, it has + * preamble and start_frame. However the checksum of this frame must fail, + * i.e. datalen + datalen_checksum must NOT be zero. When the checksum test + * fails and datalen = 0 and datalen_checksum = 0xFF, the frame is a ack. + * After datalen_checksum field, the postamble is placed. + */ +static void pn533_tx_frame_ack(struct pn533_frame *frame) +{ + frame->preamble = 0; + frame->start_frame = cpu_to_be16(PN533_SOF); + frame->datalen = 0; + frame->datalen_checksum = 0xFF; + /* data[0] is used as postamble */ + frame->data[0] = 0; +} + +static void pn533_tx_frame_init(struct pn533_frame *frame, u8 cmd) +{ + frame->preamble = 0; + frame->start_frame = cpu_to_be16(PN533_SOF); + PN533_FRAME_IDENTIFIER(frame) = PN533_DIR_OUT; + PN533_FRAME_CMD(frame) = cmd; + frame->datalen = 2; +} + +static void pn533_tx_frame_finish(struct pn533_frame *frame) +{ + frame->datalen_checksum = pn533_checksum(frame->datalen); + + PN533_FRAME_CHECKSUM(frame) = + pn533_data_checksum(frame->data, frame->datalen); + + PN533_FRAME_POSTAMBLE(frame) = 0; +} + +static bool pn533_rx_frame_is_valid(struct pn533_frame *frame) +{ + u8 checksum; + + if (frame->start_frame != cpu_to_be16(PN533_SOF)) + return false; + + checksum = pn533_checksum(frame->datalen); + if (checksum != frame->datalen_checksum) + return false; + + checksum = pn533_data_checksum(frame->data, frame->datalen); + if (checksum != PN533_FRAME_CHECKSUM(frame)) + return false; + + return true; +} + +static bool pn533_rx_frame_is_ack(struct pn533_frame *frame) +{ + if (frame->start_frame != cpu_to_be16(PN533_SOF)) + return false; + + if (frame->datalen != 0 || frame->datalen_checksum != 0xFF) + return false; + + return true; +} + +static bool pn533_rx_frame_is_cmd_response(struct pn533_frame *frame, u8 cmd) +{ + return (PN533_FRAME_CMD(frame) == PN533_CMD_RESPONSE(cmd)); +} + +static void pn533_tasklet_cmd_complete(unsigned long arg) +{ + struct pn533 *dev = (struct pn533 *) arg; + struct pn533_frame *in_frame = dev->tklt_in_frame; + int rc; + + if (dev->tklt_in_error) + rc = dev->cmd_complete(dev, dev->cmd_complete_arg, NULL, + dev->tklt_in_error); + else + rc = dev->cmd_complete(dev, dev->cmd_complete_arg, + PN533_FRAME_CMD_PARAMS_PTR(in_frame), + PN533_FRAME_CMD_PARAMS_LEN(in_frame)); + + if (rc != -EINPROGRESS) + up(&dev->cmd_lock); +} + +static void pn533_recv_response(struct urb *urb) +{ + struct pn533 *dev = urb->context; + struct pn533_frame *in_frame; + + dev->tklt_in_frame = NULL; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with" + " status: %d", urb->status); + dev->tklt_in_error = urb->status; + goto sched_tasklet; + default: + nfc_dev_err(&dev->interface->dev, "Nonzero urb status received:" + " %d", urb->status); + dev->tklt_in_error = urb->status; + goto sched_tasklet; + } + + in_frame = dev->in_urb->transfer_buffer; + + if (!pn533_rx_frame_is_valid(in_frame)) { + nfc_dev_err(&dev->interface->dev, "Received an invalid frame"); + dev->tklt_in_error = -EIO; + goto sched_tasklet; + } + + if (!pn533_rx_frame_is_cmd_response(in_frame, dev->cmd)) { + nfc_dev_err(&dev->interface->dev, "The received frame is not " + "response to the last command"); + dev->tklt_in_error = -EIO; + goto sched_tasklet; + } + + nfc_dev_dbg(&dev->interface->dev, "Received a valid frame"); + dev->tklt_in_error = 0; + dev->tklt_in_frame = in_frame; + +sched_tasklet: + tasklet_schedule(&dev->tasklet); +} + +static int pn533_submit_urb_for_response(struct pn533 *dev, gfp_t flags) +{ + dev->in_urb->complete = pn533_recv_response; + + return usb_submit_urb(dev->in_urb, flags); +} + +static void pn533_recv_ack(struct urb *urb) +{ + struct pn533 *dev = urb->context; + struct pn533_frame *in_frame; + int rc; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with" + " status: %d", urb->status); + dev->tklt_in_error = urb->status; + goto sched_tasklet; + default: + nfc_dev_err(&dev->interface->dev, "Nonzero urb status received:" + " %d", urb->status); + dev->tklt_in_error = urb->status; + goto sched_tasklet; + } + + in_frame = dev->in_urb->transfer_buffer; + + if (!pn533_rx_frame_is_ack(in_frame)) { + nfc_dev_err(&dev->interface->dev, "Received an invalid ack"); + dev->tklt_in_error = -EIO; + goto sched_tasklet; + } + + nfc_dev_dbg(&dev->interface->dev, "Received a valid ack"); + + rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC); + if (rc) { + nfc_dev_err(&dev->interface->dev, "usb_submit_urb failed with" + " result %d", rc); + dev->tklt_in_error = rc; + goto sched_tasklet; + } + + return; + +sched_tasklet: + dev->tklt_in_frame = NULL; + tasklet_schedule(&dev->tasklet); +} + +static int pn533_submit_urb_for_ack(struct pn533 *dev, gfp_t flags) +{ + dev->in_urb->complete = pn533_recv_ack; + + return usb_submit_urb(dev->in_urb, flags); +} + +static int pn533_send_ack(struct pn533 *dev, gfp_t flags) +{ + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + pn533_tx_frame_ack(dev->out_frame); + + dev->out_urb->transfer_buffer = dev->out_frame; + dev->out_urb->transfer_buffer_length = PN533_FRAME_ACK_SIZE; + rc = usb_submit_urb(dev->out_urb, flags); + + return rc; +} + +static int __pn533_send_cmd_frame_async(struct pn533 *dev, + struct pn533_frame *out_frame, + struct pn533_frame *in_frame, + int in_frame_len, + pn533_cmd_complete_t cmd_complete, + void *arg, gfp_t flags) +{ + int rc; + + nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x", + PN533_FRAME_CMD(out_frame)); + + dev->cmd = PN533_FRAME_CMD(out_frame); + dev->cmd_complete = cmd_complete; + dev->cmd_complete_arg = arg; + + dev->out_urb->transfer_buffer = out_frame; + dev->out_urb->transfer_buffer_length = + PN533_FRAME_SIZE(out_frame); + + dev->in_urb->transfer_buffer = in_frame; + dev->in_urb->transfer_buffer_length = in_frame_len; + + rc = usb_submit_urb(dev->out_urb, flags); + if (rc) + return rc; + + rc = pn533_submit_urb_for_ack(dev, flags); + if (rc) + goto error; + + return 0; + +error: + usb_unlink_urb(dev->out_urb); + return rc; +} + +static int pn533_send_cmd_frame_async(struct pn533 *dev, + struct pn533_frame *out_frame, + struct pn533_frame *in_frame, + int in_frame_len, + pn533_cmd_complete_t cmd_complete, + void *arg, gfp_t flags) +{ + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + if (down_trylock(&dev->cmd_lock)) + return -EBUSY; + + rc = __pn533_send_cmd_frame_async(dev, out_frame, in_frame, + in_frame_len, cmd_complete, arg, flags); + if (rc) + goto error; + + return 0; +error: + up(&dev->cmd_lock); + return rc; +} + +struct pn533_sync_cmd_response { + int rc; + struct completion done; +}; + +static int pn533_sync_cmd_complete(struct pn533 *dev, void *_arg, + u8 *params, int params_len) +{ + struct pn533_sync_cmd_response *arg = _arg; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + arg->rc = 0; + + if (params_len < 0) /* error */ + arg->rc = params_len; + + complete(&arg->done); + + return 0; +} + +static int pn533_send_cmd_frame_sync(struct pn533 *dev, + struct pn533_frame *out_frame, + struct pn533_frame *in_frame, + int in_frame_len) +{ + int rc; + struct pn533_sync_cmd_response arg; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + init_completion(&arg.done); + + rc = pn533_send_cmd_frame_async(dev, out_frame, in_frame, in_frame_len, + pn533_sync_cmd_complete, &arg, GFP_KERNEL); + if (rc) + return rc; + + wait_for_completion(&arg.done); + + return arg.rc; +} + +static void pn533_send_complete(struct urb *urb) +{ + struct pn533 *dev = urb->context; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + nfc_dev_dbg(&dev->interface->dev, "Urb shutting down with" + " status: %d", urb->status); + break; + default: + nfc_dev_dbg(&dev->interface->dev, "Nonzero urb status received:" + " %d", urb->status); + } +} + +struct pn533_target_type_a { + __be16 sens_res; + u8 sel_res; + u8 nfcid_len; + u8 nfcid_data[]; +} __packed; + + +#define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6)) +#define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0)) +#define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8)) + +#define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00 +#define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C + +#define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5) +#define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2) + +#define PN533_TYPE_A_SEL_PROT_MIFARE 0 +#define PN533_TYPE_A_SEL_PROT_ISO14443 1 +#define PN533_TYPE_A_SEL_PROT_DEP 2 +#define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3 + +static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a, + int target_data_len) +{ + u8 ssd; + u8 platconf; + + if (target_data_len < sizeof(struct pn533_target_type_a)) + return false; + + /* The lenght check of nfcid[] and ats[] are not being performed because + the values are not being used */ + + /* Requirement 4.6.3.3 from NFC Forum Digital Spec */ + ssd = PN533_TYPE_A_SENS_RES_SSD(type_a->sens_res); + platconf = PN533_TYPE_A_SENS_RES_PLATCONF(type_a->sens_res); + + if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL && + platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) || + (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL && + platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL)) + return false; + + /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */ + if (PN533_TYPE_A_SEL_CASCADE(type_a->sel_res) != 0) + return false; + + return true; +} + +static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data, + int tgt_data_len) +{ + struct pn533_target_type_a *tgt_type_a; + + tgt_type_a = (struct pn533_target_type_a *) tgt_data; + + if (!pn533_target_type_a_is_valid(tgt_type_a, tgt_data_len)) + return -EPROTO; + + switch (PN533_TYPE_A_SEL_PROT(tgt_type_a->sel_res)) { + case PN533_TYPE_A_SEL_PROT_MIFARE: + nfc_tgt->supported_protocols = NFC_PROTO_MIFARE_MASK; + break; + case PN533_TYPE_A_SEL_PROT_ISO14443: + nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK; + break; + case PN533_TYPE_A_SEL_PROT_DEP: + nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK; + break; + case PN533_TYPE_A_SEL_PROT_ISO14443_DEP: + nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK | + NFC_PROTO_NFC_DEP_MASK; + break; + } + + nfc_tgt->sens_res = be16_to_cpu(tgt_type_a->sens_res); + nfc_tgt->sel_res = tgt_type_a->sel_res; + + return 0; +} + +struct pn533_target_felica { + u8 pol_res; + u8 opcode; + u8 nfcid2[8]; + u8 pad[8]; + /* optional */ + u8 syst_code[]; +} __packed; + +#define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01 +#define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE + +static bool pn533_target_felica_is_valid(struct pn533_target_felica *felica, + int target_data_len) +{ + if (target_data_len < sizeof(struct pn533_target_felica)) + return false; + + if (felica->opcode != PN533_FELICA_OPC_SENSF_RES) + return false; + + return true; +} + +static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data, + int tgt_data_len) +{ + struct pn533_target_felica *tgt_felica; + + tgt_felica = (struct pn533_target_felica *) tgt_data; + + if (!pn533_target_felica_is_valid(tgt_felica, tgt_data_len)) + return -EPROTO; + + if (tgt_felica->nfcid2[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1 && + tgt_felica->nfcid2[1] == + PN533_FELICA_SENSF_NFCID2_DEP_B2) + nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK; + else + nfc_tgt->supported_protocols = NFC_PROTO_FELICA_MASK; + + return 0; +} + +struct pn533_target_jewel { + __be16 sens_res; + u8 jewelid[4]; +} __packed; + +static bool pn533_target_jewel_is_valid(struct pn533_target_jewel *jewel, + int target_data_len) +{ + u8 ssd; + u8 platconf; + + if (target_data_len < sizeof(struct pn533_target_jewel)) + return false; + + /* Requirement 4.6.3.3 from NFC Forum Digital Spec */ + ssd = PN533_TYPE_A_SENS_RES_SSD(jewel->sens_res); + platconf = PN533_TYPE_A_SENS_RES_PLATCONF(jewel->sens_res); + + if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL && + platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) || + (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL && + platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL)) + return false; + + return true; +} + +static int pn533_target_found_jewel(struct nfc_target *nfc_tgt, u8 *tgt_data, + int tgt_data_len) +{ + struct pn533_target_jewel *tgt_jewel; + + tgt_jewel = (struct pn533_target_jewel *) tgt_data; + + if (!pn533_target_jewel_is_valid(tgt_jewel, tgt_data_len)) + return -EPROTO; + + nfc_tgt->supported_protocols = NFC_PROTO_JEWEL_MASK; + nfc_tgt->sens_res = be16_to_cpu(tgt_jewel->sens_res); + + return 0; +} + +struct pn533_type_b_prot_info { + u8 bitrate; + u8 fsci_type; + u8 fwi_adc_fo; +} __packed; + +#define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4) +#define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0) +#define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8 + +struct pn533_type_b_sens_res { + u8 opcode; + u8 nfcid[4]; + u8 appdata[4]; + struct pn533_type_b_prot_info prot_info; +} __packed; + +#define PN533_TYPE_B_OPC_SENSB_RES 0x50 + +struct pn533_target_type_b { + struct pn533_type_b_sens_res sensb_res; + u8 attrib_res_len; + u8 attrib_res[]; +} __packed; + +static bool pn533_target_type_b_is_valid(struct pn533_target_type_b *type_b, + int target_data_len) +{ + if (target_data_len < sizeof(struct pn533_target_type_b)) + return false; + + if (type_b->sensb_res.opcode != PN533_TYPE_B_OPC_SENSB_RES) + return false; + + if (PN533_TYPE_B_PROT_TYPE(type_b->sensb_res.prot_info.fsci_type) & + PN533_TYPE_B_PROT_TYPE_RFU_MASK) + return false; + + return true; +} + +static int pn533_target_found_type_b(struct nfc_target *nfc_tgt, u8 *tgt_data, + int tgt_data_len) +{ + struct pn533_target_type_b *tgt_type_b; + + tgt_type_b = (struct pn533_target_type_b *) tgt_data; + + if (!pn533_target_type_b_is_valid(tgt_type_b, tgt_data_len)) + return -EPROTO; + + nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK; + + return 0; +} + +struct pn533_poll_response { + u8 nbtg; + u8 tg; + u8 target_data[]; +} __packed; + +static int pn533_target_found(struct pn533 *dev, + struct pn533_poll_response *resp, int resp_len) +{ + int target_data_len; + struct nfc_target nfc_tgt; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__, + dev->poll_mod_curr); + + if (resp->tg != 1) + return -EPROTO; + + target_data_len = resp_len - sizeof(struct pn533_poll_response); + + switch (dev->poll_mod_curr) { + case PN533_POLL_MOD_106KBPS_A: + rc = pn533_target_found_type_a(&nfc_tgt, resp->target_data, + target_data_len); + break; + case PN533_POLL_MOD_212KBPS_FELICA: + case PN533_POLL_MOD_424KBPS_FELICA: + rc = pn533_target_found_felica(&nfc_tgt, resp->target_data, + target_data_len); + break; + case PN533_POLL_MOD_106KBPS_JEWEL: + rc = pn533_target_found_jewel(&nfc_tgt, resp->target_data, + target_data_len); + break; + case PN533_POLL_MOD_847KBPS_B: + rc = pn533_target_found_type_b(&nfc_tgt, resp->target_data, + target_data_len); + break; + default: + nfc_dev_err(&dev->interface->dev, "Unknown current poll" + " modulation"); + return -EPROTO; + } + + if (rc) + return rc; + + if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) { + nfc_dev_dbg(&dev->interface->dev, "The target found does not" + " have the desired protocol"); + return -EAGAIN; + } + + nfc_dev_dbg(&dev->interface->dev, "Target found - supported protocols: " + "0x%x", nfc_tgt.supported_protocols); + + dev->tgt_available_prots = nfc_tgt.supported_protocols; + + nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1); + + return 0; +} + +static void pn533_poll_reset_mod_list(struct pn533 *dev) +{ + dev->poll_mod_count = 0; +} + +static void pn533_poll_add_mod(struct pn533 *dev, u8 mod_index) +{ + dev->poll_mod_active[dev->poll_mod_count] = + (struct pn533_poll_modulations *) &poll_mod[mod_index]; + dev->poll_mod_count++; +} + +static void pn533_poll_create_mod_list(struct pn533 *dev, u32 protocols) +{ + pn533_poll_reset_mod_list(dev); + + if (protocols & NFC_PROTO_MIFARE_MASK + || protocols & NFC_PROTO_ISO14443_MASK + || protocols & NFC_PROTO_NFC_DEP_MASK) + pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_A); + + if (protocols & NFC_PROTO_FELICA_MASK + || protocols & NFC_PROTO_NFC_DEP_MASK) { + pn533_poll_add_mod(dev, PN533_POLL_MOD_212KBPS_FELICA); + pn533_poll_add_mod(dev, PN533_POLL_MOD_424KBPS_FELICA); + } + + if (protocols & NFC_PROTO_JEWEL_MASK) + pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_JEWEL); + + if (protocols & NFC_PROTO_ISO14443_MASK) + pn533_poll_add_mod(dev, PN533_POLL_MOD_847KBPS_B); +} + +static void pn533_start_poll_frame(struct pn533_frame *frame, + struct pn533_poll_modulations *mod) +{ + + pn533_tx_frame_init(frame, PN533_CMD_IN_LIST_PASSIVE_TARGET); + + memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame), &mod->data, mod->len); + frame->datalen += mod->len; + + pn533_tx_frame_finish(frame); +} + +static int pn533_start_poll_complete(struct pn533 *dev, void *arg, + u8 *params, int params_len) +{ + struct pn533_poll_response *resp; + struct pn533_poll_modulations *next_mod; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + if (params_len == -ENOENT) { + nfc_dev_dbg(&dev->interface->dev, "Polling operation has been" + " stopped"); + goto stop_poll; + } + + if (params_len < 0) { + nfc_dev_err(&dev->interface->dev, "Error %d when running poll", + params_len); + goto stop_poll; + } + + resp = (struct pn533_poll_response *) params; + if (resp->nbtg) { + rc = pn533_target_found(dev, resp, params_len); + + /* We must stop the poll after a valid target found */ + if (rc == 0) + goto stop_poll; + + if (rc != -EAGAIN) + nfc_dev_err(&dev->interface->dev, "The target found is" + " not valid - continuing to poll"); + } + + dev->poll_mod_curr = (dev->poll_mod_curr + 1) % dev->poll_mod_count; + + next_mod = dev->poll_mod_active[dev->poll_mod_curr]; + + nfc_dev_dbg(&dev->interface->dev, "Polling next modulation (0x%x)", + dev->poll_mod_curr); + + pn533_start_poll_frame(dev->out_frame, next_mod); + + /* Don't need to down the semaphore again */ + rc = __pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen, pn533_start_poll_complete, + NULL, GFP_ATOMIC); + + if (rc == -EPERM) { + nfc_dev_dbg(&dev->interface->dev, "Cannot poll next modulation" + " because poll has been stopped"); + goto stop_poll; + } + + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error %d when trying to poll" + " next modulation", rc); + goto stop_poll; + } + + /* Inform caller function to do not up the semaphore */ + return -EINPROGRESS; + +stop_poll: + pn533_poll_reset_mod_list(dev); + dev->poll_protocols = 0; + return 0; +} + +static int pn533_start_poll(struct nfc_dev *nfc_dev, u32 protocols) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + struct pn533_poll_modulations *start_mod; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s - protocols=0x%x", __func__, + protocols); + + if (dev->poll_mod_count) { + nfc_dev_err(&dev->interface->dev, "Polling operation already" + " active"); + return -EBUSY; + } + + if (dev->tgt_active_prot) { + nfc_dev_err(&dev->interface->dev, "Cannot poll with a target" + " already activated"); + return -EBUSY; + } + + pn533_poll_create_mod_list(dev, protocols); + + if (!dev->poll_mod_count) { + nfc_dev_err(&dev->interface->dev, "No valid protocols" + " specified"); + rc = -EINVAL; + goto error; + } + + nfc_dev_dbg(&dev->interface->dev, "It will poll %d modulations types", + dev->poll_mod_count); + + dev->poll_mod_curr = 0; + start_mod = dev->poll_mod_active[dev->poll_mod_curr]; + + pn533_start_poll_frame(dev->out_frame, start_mod); + + rc = pn533_send_cmd_frame_async(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen, pn533_start_poll_complete, + NULL, GFP_KERNEL); + + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error %d when trying to" + " start poll", rc); + goto error; + } + + dev->poll_protocols = protocols; + + return 0; + +error: + pn533_poll_reset_mod_list(dev); + return rc; +} + +static void pn533_stop_poll(struct nfc_dev *nfc_dev) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + if (!dev->poll_mod_count) { + nfc_dev_dbg(&dev->interface->dev, "Polling operation was not" + " running"); + return; + } + + /* An ack will cancel the last issued command (poll) */ + pn533_send_ack(dev, GFP_KERNEL); + + /* prevent pn533_start_poll_complete to issue a new poll meanwhile */ + usb_kill_urb(dev->in_urb); +} + +static int pn533_activate_target_nfcdep(struct pn533 *dev) +{ + struct pn533_cmd_activate_param param; + struct pn533_cmd_activate_response *resp; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + pn533_tx_frame_init(dev->out_frame, PN533_CMD_IN_ATR); + + param.tg = 1; + param.next = 0; + memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame), ¶m, + sizeof(struct pn533_cmd_activate_param)); + dev->out_frame->datalen += sizeof(struct pn533_cmd_activate_param); + + pn533_tx_frame_finish(dev->out_frame); + + rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen); + if (rc) + return rc; + + resp = (struct pn533_cmd_activate_response *) + PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame); + rc = resp->status & PN533_CMD_RET_MASK; + if (rc != PN533_CMD_RET_SUCCESS) + return -EIO; + + return 0; +} + +static int pn533_activate_target(struct nfc_dev *nfc_dev, u32 target_idx, + u32 protocol) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__, + protocol); + + if (dev->poll_mod_count) { + nfc_dev_err(&dev->interface->dev, "Cannot activate while" + " polling"); + return -EBUSY; + } + + if (dev->tgt_active_prot) { + nfc_dev_err(&dev->interface->dev, "There is already an active" + " target"); + return -EBUSY; + } + + if (!dev->tgt_available_prots) { + nfc_dev_err(&dev->interface->dev, "There is no available target" + " to activate"); + return -EINVAL; + } + + if (!(dev->tgt_available_prots & (1 << protocol))) { + nfc_dev_err(&dev->interface->dev, "The target does not support" + " the requested protocol %u", protocol); + return -EINVAL; + } + + if (protocol == NFC_PROTO_NFC_DEP) { + rc = pn533_activate_target_nfcdep(dev); + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error %d when" + " activating target with" + " NFC_DEP protocol", rc); + return rc; + } + } + + dev->tgt_active_prot = protocol; + dev->tgt_available_prots = 0; + + return 0; +} + +static void pn533_deactivate_target(struct nfc_dev *nfc_dev, u32 target_idx) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + u8 tg; + u8 status; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + if (!dev->tgt_active_prot) { + nfc_dev_err(&dev->interface->dev, "There is no active target"); + return; + } + + dev->tgt_active_prot = 0; + + pn533_tx_frame_init(dev->out_frame, PN533_CMD_IN_RELEASE); + + tg = 1; + memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame), &tg, sizeof(u8)); + dev->out_frame->datalen += sizeof(u8); + + pn533_tx_frame_finish(dev->out_frame); + + rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen); + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error when sending release" + " command to the controller"); + return; + } + + status = PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame)[0]; + rc = status & PN533_CMD_RET_MASK; + if (rc != PN533_CMD_RET_SUCCESS) + nfc_dev_err(&dev->interface->dev, "Error 0x%x when releasing" + " the target", rc); + + return; +} + +#define PN533_CMD_DATAEXCH_HEAD_LEN (sizeof(struct pn533_frame) + 3) +#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262 + +static int pn533_data_exchange_tx_frame(struct pn533 *dev, struct sk_buff *skb) +{ + int payload_len = skb->len; + struct pn533_frame *out_frame; + struct sk_buff *discarded; + u8 tg; + + nfc_dev_dbg(&dev->interface->dev, "%s - Sending %d bytes", __func__, + payload_len); + + if (payload_len > PN533_CMD_DATAEXCH_DATA_MAXLEN) { + /* TODO: Implement support to multi-part data exchange */ + nfc_dev_err(&dev->interface->dev, "Data length greater than the" + " max allowed: %d", + PN533_CMD_DATAEXCH_DATA_MAXLEN); + return -ENOSYS; + } + + /* Reserving header space */ + if (skb_cow_head(skb, PN533_CMD_DATAEXCH_HEAD_LEN)) { + nfc_dev_err(&dev->interface->dev, "Error to add header data"); + return -ENOMEM; + } + + /* Reserving tail space, see pn533_tx_frame_finish */ + if (skb_cow_data(skb, PN533_FRAME_TAIL_SIZE, &discarded) < 0) { + nfc_dev_err(&dev->interface->dev, "Error to add tail data"); + return -ENOMEM; + } + + skb_push(skb, PN533_CMD_DATAEXCH_HEAD_LEN); + out_frame = (struct pn533_frame *) skb->data; + + pn533_tx_frame_init(out_frame, PN533_CMD_IN_DATA_EXCHANGE); + + tg = 1; + memcpy(PN533_FRAME_CMD_PARAMS_PTR(out_frame), &tg, sizeof(u8)); + out_frame->datalen += sizeof(u8); + + /* The data is already in the out_frame, just update the datalen */ + out_frame->datalen += payload_len; + + pn533_tx_frame_finish(out_frame); + skb_put(skb, PN533_FRAME_TAIL_SIZE); + + return 0; +} + +struct pn533_data_exchange_arg { + struct sk_buff *skb_resp; + struct sk_buff *skb_out; + data_exchange_cb_t cb; + void *cb_context; +}; + +static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg, + u8 *params, int params_len) +{ + struct pn533_data_exchange_arg *arg = _arg; + struct sk_buff *skb_resp = arg->skb_resp; + struct pn533_frame *in_frame = (struct pn533_frame *) skb_resp->data; + int err = 0; + u8 status; + u8 cmd_ret; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + dev_kfree_skb_irq(arg->skb_out); + + if (params_len < 0) { /* error */ + err = params_len; + goto error; + } + + skb_put(skb_resp, PN533_FRAME_SIZE(in_frame)); + + status = params[0]; + + cmd_ret = status & PN533_CMD_RET_MASK; + if (cmd_ret != PN533_CMD_RET_SUCCESS) { + nfc_dev_err(&dev->interface->dev, "PN533 reported error %d when" + " exchanging data", cmd_ret); + err = -EIO; + goto error; + } + + if (status & PN533_CMD_MI_MASK) { + /* TODO: Implement support to multi-part data exchange */ + nfc_dev_err(&dev->interface->dev, "Multi-part message not yet" + " supported"); + /* Prevent the other messages from controller */ + pn533_send_ack(dev, GFP_ATOMIC); + err = -ENOSYS; + goto error; + } + + skb_pull(skb_resp, PN533_CMD_DATAEXCH_HEAD_LEN); + skb_trim(skb_resp, skb_resp->len - PN533_FRAME_TAIL_SIZE); + + arg->cb(arg->cb_context, skb_resp, 0); + kfree(arg); + return 0; + +error: + dev_kfree_skb_irq(skb_resp); + arg->cb(arg->cb_context, NULL, err); + kfree(arg); + return 0; +} + +int pn533_data_exchange(struct nfc_dev *nfc_dev, u32 target_idx, + struct sk_buff *skb, + data_exchange_cb_t cb, + void *cb_context) +{ + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + struct pn533_frame *out_frame, *in_frame; + struct pn533_data_exchange_arg *arg; + struct sk_buff *skb_resp; + int skb_resp_len; + int rc; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + if (!dev->tgt_active_prot) { + nfc_dev_err(&dev->interface->dev, "Cannot exchange data if" + " there is no active target"); + rc = -EINVAL; + goto error; + } + + rc = pn533_data_exchange_tx_frame(dev, skb); + if (rc) + goto error; + + skb_resp_len = PN533_CMD_DATAEXCH_HEAD_LEN + + PN533_CMD_DATAEXCH_DATA_MAXLEN + + PN533_FRAME_TAIL_SIZE; + + skb_resp = nfc_alloc_skb(skb_resp_len, GFP_KERNEL); + if (!skb_resp) { + rc = -ENOMEM; + goto error; + } + + in_frame = (struct pn533_frame *) skb_resp->data; + out_frame = (struct pn533_frame *) skb->data; + + arg = kmalloc(sizeof(struct pn533_data_exchange_arg), GFP_KERNEL); + if (!arg) { + rc = -ENOMEM; + goto free_skb_resp; + } + + arg->skb_resp = skb_resp; + arg->skb_out = skb; + arg->cb = cb; + arg->cb_context = cb_context; + + rc = pn533_send_cmd_frame_async(dev, out_frame, in_frame, skb_resp_len, + pn533_data_exchange_complete, arg, + GFP_KERNEL); + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error %d when trying to" + " perform data_exchange", rc); + goto free_arg; + } + + return 0; + +free_arg: + kfree(arg); +free_skb_resp: + kfree_skb(skb_resp); +error: + kfree_skb(skb); + return rc; +} + +static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata, + u8 cfgdata_len) +{ + int rc; + u8 *params; + + nfc_dev_dbg(&dev->interface->dev, "%s", __func__); + + pn533_tx_frame_init(dev->out_frame, PN533_CMD_RF_CONFIGURATION); + + params = PN533_FRAME_CMD_PARAMS_PTR(dev->out_frame); + params[0] = cfgitem; + memcpy(¶ms[1], cfgdata, cfgdata_len); + dev->out_frame->datalen += (1 + cfgdata_len); + + pn533_tx_frame_finish(dev->out_frame); + + rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen); + + return rc; +} + +struct nfc_ops pn533_nfc_ops = { + .start_poll = pn533_start_poll, + .stop_poll = pn533_stop_poll, + .activate_target = pn533_activate_target, + .deactivate_target = pn533_deactivate_target, + .data_exchange = pn533_data_exchange, +}; + +static int pn533_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct pn533_fw_version *fw_ver; + struct pn533 *dev; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + struct pn533_config_max_retries max_retries; + int in_endpoint = 0; + int out_endpoint = 0; + int rc = -ENOMEM; + int i; + u32 protocols; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + dev->udev = usb_get_dev(interface_to_usbdev(interface)); + dev->interface = interface; + sema_init(&dev->cmd_lock, 1); + + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + + if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) { + dev->in_maxlen = le16_to_cpu(endpoint->wMaxPacketSize); + in_endpoint = endpoint->bEndpointAddress; + } + + if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) { + dev->out_maxlen = + le16_to_cpu(endpoint->wMaxPacketSize); + out_endpoint = endpoint->bEndpointAddress; + } + } + + if (!in_endpoint || !out_endpoint) { + nfc_dev_err(&interface->dev, "Could not find bulk-in or" + " bulk-out endpoint"); + rc = -ENODEV; + goto error; + } + + dev->in_frame = kmalloc(dev->in_maxlen, GFP_KERNEL); + dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); + dev->out_frame = kmalloc(dev->out_maxlen, GFP_KERNEL); + dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); + + if (!dev->in_frame || !dev->out_frame || + !dev->in_urb || !dev->out_urb) + goto error; + + usb_fill_bulk_urb(dev->in_urb, dev->udev, + usb_rcvbulkpipe(dev->udev, in_endpoint), + NULL, 0, NULL, dev); + usb_fill_bulk_urb(dev->out_urb, dev->udev, + usb_sndbulkpipe(dev->udev, out_endpoint), + NULL, 0, + pn533_send_complete, dev); + + tasklet_init(&dev->tasklet, pn533_tasklet_cmd_complete, (ulong)dev); + + usb_set_intfdata(interface, dev); + + pn533_tx_frame_init(dev->out_frame, PN533_CMD_GET_FIRMWARE_VERSION); + pn533_tx_frame_finish(dev->out_frame); + + rc = pn533_send_cmd_frame_sync(dev, dev->out_frame, dev->in_frame, + dev->in_maxlen); + if (rc) + goto kill_tasklet; + + fw_ver = (struct pn533_fw_version *) + PN533_FRAME_CMD_PARAMS_PTR(dev->in_frame); + nfc_dev_info(&dev->interface->dev, "NXP PN533 firmware ver %d.%d now" + " attached", fw_ver->ver, fw_ver->rev); + + protocols = NFC_PROTO_JEWEL_MASK + | NFC_PROTO_MIFARE_MASK | NFC_PROTO_FELICA_MASK + | NFC_PROTO_ISO14443_MASK + | NFC_PROTO_NFC_DEP_MASK; + + dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols); + if (!dev->nfc_dev) + goto kill_tasklet; + + nfc_set_parent_dev(dev->nfc_dev, &interface->dev); + nfc_set_drvdata(dev->nfc_dev, dev); + + rc = nfc_register_device(dev->nfc_dev); + if (rc) + goto free_nfc_dev; + + max_retries.mx_rty_atr = PN533_CONFIG_MAX_RETRIES_ENDLESS; + max_retries.mx_rty_psl = 2; + max_retries.mx_rty_passive_act = PN533_CONFIG_MAX_RETRIES_NO_RETRY; + + rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES, + (u8 *) &max_retries, sizeof(max_retries)); + + if (rc) { + nfc_dev_err(&dev->interface->dev, "Error on setting MAX_RETRIES" + " config"); + goto free_nfc_dev; + } + + return 0; + +free_nfc_dev: + nfc_free_device(dev->nfc_dev); +kill_tasklet: + tasklet_kill(&dev->tasklet); +error: + kfree(dev->in_frame); + usb_free_urb(dev->in_urb); + kfree(dev->out_frame); + usb_free_urb(dev->out_urb); + kfree(dev); + return rc; +} + +static void pn533_disconnect(struct usb_interface *interface) +{ + struct pn533 *dev; + + dev = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + nfc_unregister_device(dev->nfc_dev); + nfc_free_device(dev->nfc_dev); + + usb_kill_urb(dev->in_urb); + usb_kill_urb(dev->out_urb); + + tasklet_kill(&dev->tasklet); + + kfree(dev->in_frame); + usb_free_urb(dev->in_urb); + kfree(dev->out_frame); + usb_free_urb(dev->out_urb); + kfree(dev); + + nfc_dev_info(&dev->interface->dev, "NXP PN533 NFC device disconnected"); +} + +static struct usb_driver pn533_driver = { + .name = "pn533", + .probe = pn533_probe, + .disconnect = pn533_disconnect, + .id_table = pn533_table, +}; + +static int __init pn533_init(void) +{ + int rc; + + rc = usb_register(&pn533_driver); + if (rc) + err("usb_register failed. Error number %d", rc); + + return rc; +} + +static void __exit pn533_exit(void) +{ + usb_deregister(&pn533_driver); +} + +module_init(pn533_init); +module_exit(pn533_exit); + +MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>," + " Aloisio Almeida Jr <aloisio.almeida@openbossa.org>"); +MODULE_DESCRIPTION("PN533 usb driver ver " VERSION); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL"); diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c index 7ad4858..a00b35f 100644 --- a/drivers/ssb/pci.c +++ b/drivers/ssb/pci.c @@ -734,12 +734,9 @@ out_free: static void ssb_pci_get_boardinfo(struct ssb_bus *bus, struct ssb_boardinfo *bi) { - pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID, - &bi->vendor); - pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID, - &bi->type); - pci_read_config_word(bus->host_pci, PCI_REVISION_ID, - &bi->rev); + bi->vendor = bus->host_pci->subsystem_vendor; + bi->type = bus->host_pci->subsystem_device; + bi->rev = bus->host_pci->revision; } int ssb_pci_get_invariants(struct ssb_bus *bus, diff --git a/include/linux/nfc.h b/include/linux/nfc.h new file mode 100644 index 0000000..330a4c5 --- /dev/null +++ b/include/linux/nfc.h @@ -0,0 +1,126 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __LINUX_NFC_H +#define __LINUX_NFC_H + +#include <linux/types.h> +#include <linux/socket.h> + +#define NFC_GENL_NAME "nfc" +#define NFC_GENL_VERSION 1 + +#define NFC_GENL_MCAST_EVENT_NAME "events" + +/** + * enum nfc_commands - supported nfc commands + * + * @NFC_CMD_UNSPEC: unspecified command + * + * @NFC_CMD_GET_DEVICE: request information about a device (requires + * %NFC_ATTR_DEVICE_INDEX) or dump request to get a list of all nfc devices + * @NFC_CMD_START_POLL: start polling for targets using the given protocols + * (requires %NFC_ATTR_DEVICE_INDEX and %NFC_ATTR_PROTOCOLS) + * @NFC_CMD_STOP_POLL: stop polling for targets (requires + * %NFC_ATTR_DEVICE_INDEX) + * @NFC_CMD_GET_TARGET: dump all targets found by the previous poll (requires + * %NFC_ATTR_DEVICE_INDEX) + * @NFC_EVENT_TARGETS_FOUND: event emitted when a new target is found + * (it sends %NFC_ATTR_DEVICE_INDEX) + * @NFC_EVENT_DEVICE_ADDED: event emitted when a new device is registred + * (it sends %NFC_ATTR_DEVICE_NAME, %NFC_ATTR_DEVICE_INDEX and + * %NFC_ATTR_PROTOCOLS) + * @NFC_EVENT_DEVICE_REMOVED: event emitted when a device is removed + * (it sends %NFC_ATTR_DEVICE_INDEX) + */ +enum nfc_commands { + NFC_CMD_UNSPEC, + NFC_CMD_GET_DEVICE, + NFC_CMD_START_POLL, + NFC_CMD_STOP_POLL, + NFC_CMD_GET_TARGET, + NFC_EVENT_TARGETS_FOUND, + NFC_EVENT_DEVICE_ADDED, + NFC_EVENT_DEVICE_REMOVED, +/* private: internal use only */ + __NFC_CMD_AFTER_LAST +}; +#define NFC_CMD_MAX (__NFC_CMD_AFTER_LAST - 1) + +/** + * enum nfc_attrs - supported nfc attributes + * + * @NFC_ATTR_UNSPEC: unspecified attribute + * + * @NFC_ATTR_DEVICE_INDEX: index of nfc device + * @NFC_ATTR_DEVICE_NAME: device name, max 8 chars + * @NFC_ATTR_PROTOCOLS: nfc protocols - bitwise or-ed combination from + * NFC_PROTO_*_MASK constants + * @NFC_ATTR_TARGET_INDEX: index of the nfc target + * @NFC_ATTR_TARGET_SENS_RES: NFC-A targets extra information such as NFCID + * @NFC_ATTR_TARGET_SEL_RES: NFC-A targets extra information (useful if the + * target is not NFC-Forum compliant) + */ +enum nfc_attrs { + NFC_ATTR_UNSPEC, + NFC_ATTR_DEVICE_INDEX, + NFC_ATTR_DEVICE_NAME, + NFC_ATTR_PROTOCOLS, + NFC_ATTR_TARGET_INDEX, + NFC_ATTR_TARGET_SENS_RES, + NFC_ATTR_TARGET_SEL_RES, +/* private: internal use only */ + __NFC_ATTR_AFTER_LAST +}; +#define NFC_ATTR_MAX (__NFC_ATTR_AFTER_LAST - 1) + +#define NFC_DEVICE_NAME_MAXSIZE 8 + +/* NFC protocols */ +#define NFC_PROTO_JEWEL 1 +#define NFC_PROTO_MIFARE 2 +#define NFC_PROTO_FELICA 3 +#define NFC_PROTO_ISO14443 4 +#define NFC_PROTO_NFC_DEP 5 + +#define NFC_PROTO_MAX 6 + +/* NFC protocols masks used in bitsets */ +#define NFC_PROTO_JEWEL_MASK (1 << NFC_PROTO_JEWEL) +#define NFC_PROTO_MIFARE_MASK (1 << NFC_PROTO_MIFARE) +#define NFC_PROTO_FELICA_MASK (1 << NFC_PROTO_FELICA) +#define NFC_PROTO_ISO14443_MASK (1 << NFC_PROTO_ISO14443) +#define NFC_PROTO_NFC_DEP_MASK (1 << NFC_PROTO_NFC_DEP) + +struct sockaddr_nfc { + sa_family_t sa_family; + __u32 dev_idx; + __u32 target_idx; + __u32 nfc_protocol; +}; + +/* NFC socket protocols */ +#define NFC_SOCKPROTO_RAW 0 +#define NFC_SOCKPROTO_MAX 1 + +#endif /*__LINUX_NFC_H */ diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h index c7ccaae..3ec2f94 100644 --- a/include/linux/nl80211.h +++ b/include/linux/nl80211.h @@ -483,6 +483,14 @@ * more background information, see * http://wireless.kernel.org/en/users/Documentation/WoWLAN. * + * @NL80211_CMD_SET_REKEY_OFFLOAD: This command is used give the driver + * the necessary information for supporting GTK rekey offload. This + * feature is typically used during WoWLAN. The configuration data + * is contained in %NL80211_ATTR_REKEY_DATA (which is nested and + * contains the data in sub-attributes). After rekeying happened, + * this command may also be sent by the driver as an MLME event to + * inform userspace of the new replay counter. + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -605,6 +613,8 @@ enum nl80211_commands { NL80211_CMD_SCHED_SCAN_RESULTS, NL80211_CMD_SCHED_SCAN_STOPPED, + NL80211_CMD_SET_REKEY_OFFLOAD, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ @@ -996,6 +1006,9 @@ enum nl80211_commands { * are managed in software: interfaces of these types aren't subject to * any restrictions in their number or combinations. * + * @%NL80211_ATTR_REKEY_DATA: nested attribute containing the information + * necessary for GTK rekeying in the device, see &enum nl80211_rekey_data. + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -1194,6 +1207,8 @@ enum nl80211_attrs { NL80211_ATTR_INTERFACE_COMBINATIONS, NL80211_ATTR_SOFTWARE_IFTYPES, + NL80211_ATTR_REKEY_DATA, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -2361,4 +2376,28 @@ enum nl80211_plink_state { MAX_NL80211_PLINK_STATES = NUM_NL80211_PLINK_STATES - 1 }; +#define NL80211_KCK_LEN 16 +#define NL80211_KEK_LEN 16 +#define NL80211_REPLAY_CTR_LEN 8 + +/** + * enum nl80211_rekey_data - attributes for GTK rekey offload + * @__NL80211_REKEY_DATA_INVALID: invalid number for nested attributes + * @NL80211_REKEY_DATA_KEK: key encryption key (binary) + * @NL80211_REKEY_DATA_KCK: key confirmation key (binary) + * @NL80211_REKEY_DATA_REPLAY_CTR: replay counter (binary) + * @NUM_NL80211_REKEY_DATA: number of rekey attributes (internal) + * @MAX_NL80211_REKEY_DATA: highest rekey attribute (internal) + */ +enum nl80211_rekey_data { + __NL80211_REKEY_DATA_INVALID, + NL80211_REKEY_DATA_KEK, + NL80211_REKEY_DATA_KCK, + NL80211_REKEY_DATA_REPLAY_CTR, + + /* keep last */ + NUM_NL80211_REKEY_DATA, + MAX_NL80211_REKEY_DATA = NUM_NL80211_REKEY_DATA - 1 +}; + #endif /* __LINUX_NL80211_H */ diff --git a/include/linux/socket.h b/include/linux/socket.h index 4ef98e4..e17f822 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -192,7 +192,8 @@ struct ucred { #define AF_IEEE802154 36 /* IEEE802154 sockets */ #define AF_CAIF 37 /* CAIF sockets */ #define AF_ALG 38 /* Algorithm sockets */ -#define AF_MAX 39 /* For now.. */ +#define AF_NFC 39 /* NFC sockets */ +#define AF_MAX 40 /* For now.. */ /* Protocol families, same as address families. */ #define PF_UNSPEC AF_UNSPEC @@ -234,6 +235,7 @@ struct ucred { #define PF_IEEE802154 AF_IEEE802154 #define PF_CAIF AF_CAIF #define PF_ALG AF_ALG +#define PF_NFC AF_NFC #define PF_MAX AF_MAX /* Maximum queue length specifiable by listen. */ diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h index 252e4482..b0928c1 100644 --- a/include/linux/ssb/ssb.h +++ b/include/linux/ssb/ssb.h @@ -99,7 +99,7 @@ struct ssb_sprom { struct ssb_boardinfo { u16 vendor; u16 type; - u16 rev; + u8 rev; }; diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 7202bce..4bf101b 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1154,6 +1154,18 @@ struct cfg80211_wowlan { }; /** + * struct cfg80211_gtk_rekey_data - rekey data + * @kek: key encryption key + * @kck: key confirmation key + * @replay_ctr: replay counter + */ +struct cfg80211_gtk_rekey_data { + u8 kek[NL80211_KEK_LEN]; + u8 kck[NL80211_KCK_LEN]; + u8 replay_ctr[NL80211_REPLAY_CTR_LEN]; +}; + +/** * struct cfg80211_ops - backend description for wireless configuration * * This struct is registered by fullmac card drivers and/or wireless stacks @@ -1197,6 +1209,8 @@ struct cfg80211_wowlan { * * @set_default_mgmt_key: set the default management frame key on an interface * + * @set_rekey_data: give the data necessary for GTK rekeying to the driver + * * @add_beacon: Add a beacon with given parameters, @head, @interval * and @dtim_period will be valid, @tail is optional. * @set_beacon: Change the beacon parameters for an access point mode @@ -1499,6 +1513,9 @@ struct cfg80211_ops { struct net_device *dev, struct cfg80211_sched_scan_request *request); int (*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev); + + int (*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_gtk_rekey_data *data); }; /* @@ -3033,6 +3050,15 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, void cfg80211_cqm_pktloss_notify(struct net_device *dev, const u8 *peer, u32 num_packets, gfp_t gfp); +/** + * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying + * @dev: network device + * @bssid: BSSID of AP (to avoid races) + * @replay_ctr: new replay counter + */ +void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp); + /* Logging, debugging and troubleshooting/diagnostic helpers. */ /* wiphy_printk helpers, similar to dev_printk */ diff --git a/include/net/mac80211.h b/include/net/mac80211.h index c9def42..2474019f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1628,6 +1628,10 @@ enum ieee80211_ampdu_mlme_action { * ask the device to suspend. This is only invoked when WoWLAN is * configured, otherwise the device is deconfigured completely and * reconfigured at resume time. + * The driver may also impose special conditions under which it + * wants to use the "normal" suspend (deconfigure), say if it only + * supports WoWLAN when the device is associated. In this case, it + * must return 1 from this function. * * @resume: If WoWLAN was configured, this indicates that mac80211 is * now resuming its operation, after this the device must be fully @@ -1696,6 +1700,12 @@ enum ieee80211_ampdu_mlme_action { * which set IEEE80211_KEY_FLAG_TKIP_REQ_RX_P1_KEY. * The callback must be atomic. * + * @set_rekey_data: If the device supports GTK rekeying, for example while the + * host is suspended, it can assign this callback to retrieve the data + * necessary to do GTK rekeying, this is the KEK, KCK and replay counter. + * After rekeying was done it should (for example during resume) notify + * userspace of the new replay counter using ieee80211_gtk_rekey_notify(). + * * @hw_scan: Ask the hardware to service the scan request, no need to start * the scan state machine in stack. The scan must honour the channel * configuration done by the regulatory agent in the wiphy's @@ -1908,6 +1918,9 @@ struct ieee80211_ops { struct ieee80211_key_conf *conf, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key); + void (*set_rekey_data)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_gtk_rekey_data *data); int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_scan_request *req); void (*cancel_hw_scan)(struct ieee80211_hw *hw, @@ -2581,6 +2594,17 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif); void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf, struct sk_buff *skb, enum ieee80211_tkip_key_type type, u8 *key); + +/** + * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying + * @vif: virtual interface the rekeying was done on + * @bssid: The BSSID of the AP, for checking association + * @replay_ctr: the new replay counter after GTK rekeying + * @gfp: allocation flags + */ +void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp); + /** * ieee80211_wake_queue - wake specific queue * @hw: pointer as obtained from ieee80211_alloc_hw(). @@ -2846,6 +2870,29 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta, bool block); /** + * ieee80211_iter_keys - iterate keys programmed into the device + * @hw: pointer obtained from ieee80211_alloc_hw() + * @vif: virtual interface to iterate, may be %NULL for all + * @iter: iterator function that will be called for each key + * @iter_data: custom data to pass to the iterator function + * + * This function can be used to iterate all the keys known to + * mac80211, even those that weren't previously programmed into + * the device. This is intended for use in WoWLAN if the device + * needs reprogramming of the keys during suspend. Note that due + * to locking reasons, it is also only safe to call this at few + * spots since it must hold the RTNL and be able to sleep. + */ +void ieee80211_iter_keys(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *data), + void *iter_data); + +/** * ieee80211_ap_probereq_get - retrieve a Probe Request template * @hw: pointer obtained from ieee80211_alloc_hw(). * @vif: &struct ieee80211_vif pointer from the add_interface callback. diff --git a/include/net/nfc.h b/include/net/nfc.h new file mode 100644 index 0000000..cc01303 --- /dev/null +++ b/include/net/nfc.h @@ -0,0 +1,156 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __NET_NFC_H +#define __NET_NFC_H + +#include <linux/device.h> +#include <linux/skbuff.h> + +#define nfc_dev_info(dev, fmt, arg...) dev_info((dev), "NFC: " fmt "\n", ## arg) +#define nfc_dev_err(dev, fmt, arg...) dev_err((dev), "NFC: " fmt "\n", ## arg) +#define nfc_dev_dbg(dev, fmt, arg...) dev_dbg((dev), fmt "\n", ## arg) + +struct nfc_dev; + +/** + * data_exchange_cb_t - Definition of nfc_data_exchange callback + * + * @context: nfc_data_exchange cb_context parameter + * @skb: response data + * @err: If an error has occurred during data exchange, it is the + * error number. Zero means no error. + * + * When a rx or tx package is lost or corrupted or the target gets out + * of the operating field, err is -EIO. + */ +typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb, + int err); + +struct nfc_ops { + int (*start_poll)(struct nfc_dev *dev, u32 protocols); + void (*stop_poll)(struct nfc_dev *dev); + int (*activate_target)(struct nfc_dev *dev, u32 target_idx, + u32 protocol); + void (*deactivate_target)(struct nfc_dev *dev, u32 target_idx); + int (*data_exchange)(struct nfc_dev *dev, u32 target_idx, + struct sk_buff *skb, data_exchange_cb_t cb, + void *cb_context); +}; + +struct nfc_target { + u32 idx; + u32 supported_protocols; + u16 sens_res; + u8 sel_res; +}; + +struct nfc_genl_data { + u32 poll_req_pid; + struct mutex genl_data_mutex; +}; + +struct nfc_dev { + unsigned idx; + unsigned target_idx; + struct nfc_target *targets; + int n_targets; + int targets_generation; + spinlock_t targets_lock; + struct device dev; + bool polling; + struct nfc_genl_data genl_data; + u32 supported_protocols; + + struct nfc_ops *ops; +}; +#define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev) + +extern struct class nfc_class; + +struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, + u32 supported_protocols); + +/** + * nfc_free_device - free nfc device + * + * @dev: The nfc device to free + */ +static inline void nfc_free_device(struct nfc_dev *dev) +{ + put_device(&dev->dev); +} + +int nfc_register_device(struct nfc_dev *dev); + +void nfc_unregister_device(struct nfc_dev *dev); + +/** + * nfc_set_parent_dev - set the parent device + * + * @nfc_dev: The nfc device whose parent is being set + * @dev: The parent device + */ +static inline void nfc_set_parent_dev(struct nfc_dev *nfc_dev, + struct device *dev) +{ + nfc_dev->dev.parent = dev; +} + +/** + * nfc_set_drvdata - set driver specifc data + * + * @dev: The nfc device + * @data: Pointer to driver specifc data + */ +static inline void nfc_set_drvdata(struct nfc_dev *dev, void *data) +{ + dev_set_drvdata(&dev->dev, data); +} + +/** + * nfc_get_drvdata - get driver specifc data + * + * @dev: The nfc device + */ +static inline void *nfc_get_drvdata(struct nfc_dev *dev) +{ + return dev_get_drvdata(&dev->dev); +} + +/** + * nfc_device_name - get the nfc device name + * + * @dev: The nfc device whose name to return + */ +static inline const char *nfc_device_name(struct nfc_dev *dev) +{ + return dev_name(&dev->dev); +} + +struct sk_buff *nfc_alloc_skb(unsigned int size, gfp_t gfp); + +int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets, + int ntargets); + +#endif /* __NET_NFC_H */ diff --git a/net/Kconfig b/net/Kconfig index 878151c..a073148 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -322,6 +322,7 @@ source "net/rfkill/Kconfig" source "net/9p/Kconfig" source "net/caif/Kconfig" source "net/ceph/Kconfig" +source "net/nfc/Kconfig" endif # if NET diff --git a/net/Makefile b/net/Makefile index a51d946..acdde49 100644 --- a/net/Makefile +++ b/net/Makefile @@ -68,3 +68,4 @@ obj-$(CONFIG_WIMAX) += wimax/ obj-$(CONFIG_DNS_RESOLVER) += dns_resolver/ obj-$(CONFIG_CEPH_LIB) += ceph/ obj-$(CONFIG_BATMAN_ADV) += batman-adv/ +obj-$(CONFIG_NFC) += nfc/ diff --git a/net/core/sock.c b/net/core/sock.c index 76c4031..bc745d0 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -160,7 +160,7 @@ static const char *const af_family_key_strings[AF_MAX+1] = { "sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" , "sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN" , "sk_lock-AF_PHONET" , "sk_lock-AF_IEEE802154", "sk_lock-AF_CAIF" , "sk_lock-AF_ALG" , - "sk_lock-AF_MAX" + "sk_lock-AF_NFC" , "sk_lock-AF_MAX" }; static const char *const af_family_slock_key_strings[AF_MAX+1] = { "slock-AF_UNSPEC", "slock-AF_UNIX" , "slock-AF_INET" , @@ -176,7 +176,7 @@ static const char *const af_family_slock_key_strings[AF_MAX+1] = { "slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" , "slock-AF_RXRPC" , "slock-AF_ISDN" , "slock-AF_PHONET" , "slock-AF_IEEE802154", "slock-AF_CAIF" , "slock-AF_ALG" , - "slock-AF_MAX" + "slock-AF_NFC" , "slock-AF_MAX" }; static const char *const af_family_clock_key_strings[AF_MAX+1] = { "clock-AF_UNSPEC", "clock-AF_UNIX" , "clock-AF_INET" , @@ -192,7 +192,7 @@ static const char *const af_family_clock_key_strings[AF_MAX+1] = { "clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" , "clock-AF_RXRPC" , "clock-AF_ISDN" , "clock-AF_PHONET" , "clock-AF_IEEE802154", "clock-AF_CAIF" , "clock-AF_ALG" , - "clock-AF_MAX" + "clock-AF_NFC" , "clock-AF_MAX" }; /* diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9fe22cc..295ab74 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2101,6 +2101,21 @@ static void ieee80211_get_ringparam(struct wiphy *wiphy, drv_get_ringparam(local, tx, tx_max, rx, rx_max); } +static int ieee80211_set_rekey_data(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_gtk_rekey_data *data) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (!local->ops->set_rekey_data) + return -EOPNOTSUPP; + + drv_set_rekey_data(local, sdata, data); + + return 0; +} + struct cfg80211_ops mac80211_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, @@ -2163,4 +2178,5 @@ struct cfg80211_ops mac80211_config_ops = { .get_antenna = ieee80211_get_antenna, .set_ringparam = ieee80211_set_ringparam, .get_ringparam = ieee80211_get_ringparam, + .set_rekey_data = ieee80211_set_rekey_data, }; diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 0e7e426..edd2dd7 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -647,4 +647,14 @@ static inline int drv_set_bitrate_mask(struct ieee80211_local *local, return ret; } +static inline void drv_set_rekey_data(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct cfg80211_gtk_rekey_data *data) +{ + trace_drv_set_rekey_data(local, sdata, data); + if (local->ops->set_rekey_data) + local->ops->set_rekey_data(&local->hw, &sdata->vif, data); + trace_drv_return_void(local); +} + #endif /* __MAC80211_DRIVER_OPS */ diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h index 3cb6795..31a9dfa 100644 --- a/net/mac80211/driver-trace.h +++ b/net/mac80211/driver-trace.h @@ -1024,6 +1024,34 @@ TRACE_EVENT(drv_set_bitrate_mask, ) ); +TRACE_EVENT(drv_set_rekey_data, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct cfg80211_gtk_rekey_data *data), + + TP_ARGS(local, sdata, data), + + TP_STRUCT__entry( + LOCAL_ENTRY + VIF_ENTRY + __array(u8, kek, NL80211_KEK_LEN) + __array(u8, kck, NL80211_KCK_LEN) + __array(u8, replay_ctr, NL80211_REPLAY_CTR_LEN) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + VIF_ASSIGN; + memcpy(__entry->kek, data->kek, NL80211_KEK_LEN); + memcpy(__entry->kck, data->kck, NL80211_KCK_LEN); + memcpy(__entry->replay_ctr, data->replay_ctr, + NL80211_REPLAY_CTR_LEN); + ), + + TP_printk(LOCAL_PR_FMT VIF_PR_FMT, + LOCAL_PR_ARG, VIF_PR_ARG) +); + /* * Tracing for API calls that drivers call. */ @@ -1293,6 +1321,27 @@ DEFINE_EVENT(local_only_evt, api_remain_on_channel_expired, TP_ARGS(local) ); +TRACE_EVENT(api_gtk_rekey_notify, + TP_PROTO(struct ieee80211_sub_if_data *sdata, + const u8 *bssid, const u8 *replay_ctr), + + TP_ARGS(sdata, bssid, replay_ctr), + + TP_STRUCT__entry( + VIF_ENTRY + __array(u8, bssid, ETH_ALEN) + __array(u8, replay_ctr, NL80211_REPLAY_CTR_LEN) + ), + + TP_fast_assign( + VIF_ASSIGN; + memcpy(__entry->bssid, bssid, ETH_ALEN); + memcpy(__entry->replay_ctr, replay_ctr, NL80211_REPLAY_CTR_LEN); + ), + + TP_printk(VIF_PR_FMT, VIF_PR_ARG) +); + /* * Tracing for internal functions * (which may also be called in response to driver calls) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 25c15cc..4f2e424 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -544,6 +544,9 @@ struct ieee80211_sub_if_data { /* keys */ struct list_head key_list; + /* count for keys needing tailroom space allocation */ + int crypto_tx_tailroom_needed_cnt; + struct net_device *dev; struct ieee80211_local *local; diff --git a/net/mac80211/key.c b/net/mac80211/key.c index f825e2f..1208a78 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -61,6 +61,36 @@ static struct ieee80211_sta *get_sta_for_key(struct ieee80211_key *key) return NULL; } +static void increment_tailroom_need_count(struct ieee80211_sub_if_data *sdata) +{ + /* + * When this count is zero, SKB resizing for allocating tailroom + * for IV or MMIC is skipped. But, this check has created two race + * cases in xmit path while transiting from zero count to one: + * + * 1. SKB resize was skipped because no key was added but just before + * the xmit key is added and SW encryption kicks off. + * + * 2. SKB resize was skipped because all the keys were hw planted but + * just before xmit one of the key is deleted and SW encryption kicks + * off. + * + * In both the above case SW encryption will find not enough space for + * tailroom and exits with WARN_ON. (See WARN_ONs at wpa.c) + * + * Solution has been explained at + * http://mid.gmane.org/1308590980.4322.19.camel@jlt3.sipsolutions.net + */ + + if (!sdata->crypto_tx_tailroom_needed_cnt++) { + /* + * Flush all XMIT packets currently using HW encryption or no + * encryption at all if the count transition is from 0 -> 1. + */ + synchronize_net(); + } +} + static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) { struct ieee80211_sub_if_data *sdata; @@ -101,6 +131,11 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) if (!ret) { key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; + + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))) + sdata->crypto_tx_tailroom_needed_cnt--; + return 0; } @@ -142,6 +177,10 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) sta = get_sta_for_key(key); sdata = key->sdata; + if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) || + (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))) + increment_tailroom_need_count(sdata); + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) sdata = container_of(sdata->bss, struct ieee80211_sub_if_data, @@ -394,8 +433,10 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key) ieee80211_aes_key_free(key->u.ccmp.tfm); if (key->conf.cipher == WLAN_CIPHER_SUITE_AES_CMAC) ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm); - if (key->local) + if (key->local) { ieee80211_debugfs_key_remove(key); + key->sdata->crypto_tx_tailroom_needed_cnt--; + } kfree(key); } @@ -452,6 +493,8 @@ int ieee80211_key_link(struct ieee80211_key *key, else old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]); + increment_tailroom_need_count(sdata); + __ieee80211_key_replace(sdata, sta, pairwise, old_key, key); __ieee80211_key_destroy(old_key); @@ -498,12 +541,49 @@ void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata) mutex_lock(&sdata->local->key_mtx); - list_for_each_entry(key, &sdata->key_list, list) + sdata->crypto_tx_tailroom_needed_cnt = 0; + + list_for_each_entry(key, &sdata->key_list, list) { + increment_tailroom_need_count(sdata); ieee80211_key_enable_hw_accel(key); + } mutex_unlock(&sdata->local->key_mtx); } +void ieee80211_iter_keys(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *data), + void *iter_data) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_key *key; + struct ieee80211_sub_if_data *sdata; + + ASSERT_RTNL(); + + mutex_lock(&local->key_mtx); + if (vif) { + sdata = vif_to_sdata(vif); + list_for_each_entry(key, &sdata->key_list, list) + iter(hw, &sdata->vif, + key->sta ? &key->sta->sta : NULL, + &key->conf, iter_data); + } else { + list_for_each_entry(sdata, &local->interfaces, list) + list_for_each_entry(key, &sdata->key_list, list) + iter(hw, &sdata->vif, + key->sta ? &key->sta->sta : NULL, + &key->conf, iter_data); + } + mutex_unlock(&local->key_mtx); +} +EXPORT_SYMBOL(ieee80211_iter_keys); + void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata) { struct ieee80211_key *key; @@ -533,3 +613,15 @@ void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata) mutex_unlock(&sdata->local->key_mtx); } + + +void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + + trace_api_gtk_rekey_notify(sdata, bssid, replay_ctr); + + cfg80211_gtk_rekey_notify(sdata->dev, bssid, replay_ctr, gfp); +} +EXPORT_SYMBOL_GPL(ieee80211_gtk_rekey_notify); diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 0d2faac..068ee651 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -647,12 +647,12 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) mpath = node->mpath; if (mpath->sdata == sdata && memcmp(addr, mpath->dst, ETH_ALEN) == 0) { - spin_lock_bh(&mpath->state_lock); + spin_lock(&mpath->state_lock); mpath->flags |= MESH_PATH_RESOLVING; hlist_del_rcu(&node->list); call_rcu(&node->rcu, mesh_path_node_reclaim); atomic_dec(&tbl->entries); - spin_unlock_bh(&mpath->state_lock); + spin_unlock(&mpath->state_lock); goto enddel; } } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index b874200..182cda6 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -749,7 +749,7 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) container_of(work, struct ieee80211_local, dynamic_ps_enable_work); struct ieee80211_sub_if_data *sdata = local->ps_sdata; - struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; + struct ieee80211_if_managed *ifmgd; unsigned long flags; int q; @@ -757,6 +757,8 @@ void ieee80211_dynamic_ps_enable_work(struct work_struct *work) if (!sdata) return; + ifmgd = &sdata->u.mgd; + if (local->hw.conf.flags & IEEE80211_CONF_PS) return; diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index 67839eb..f87e993 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -72,15 +72,19 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) local->wowlan = wowlan && local->open_count; if (local->wowlan) { int err = drv_suspend(local, wowlan); - if (err) { + if (err < 0) { local->quiescing = false; return err; + } else if (err > 0) { + WARN_ON(err != 1); + local->wowlan = false; + } else { + list_for_each_entry(sdata, &local->interfaces, list) { + cancel_work_sync(&sdata->work); + ieee80211_quiesce(sdata); + } + goto suspend; } - list_for_each_entry(sdata, &local->interfaces, list) { - cancel_work_sync(&sdata->work); - ieee80211_quiesce(sdata); - } - goto suspend; } /* disable keys */ diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 3104c84..e8d0d2d 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1474,18 +1474,14 @@ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata, /* device xmit handlers */ -static int ieee80211_skb_resize(struct ieee80211_local *local, +static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, int head_need, bool may_encrypt) { + struct ieee80211_local *local = sdata->local; int tail_need = 0; - /* - * This could be optimised, devices that do full hardware - * crypto (including TKIP MMIC) need no tailroom... But we - * have no drivers for such devices currently. - */ - if (may_encrypt) { + if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) { tail_need = IEEE80211_ENCRYPT_TAILROOM; tail_need -= skb_tailroom(skb); tail_need = max_t(int, tail_need, 0); @@ -1578,7 +1574,7 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, headroom -= skb_headroom(skb); headroom = max_t(int, 0, headroom); - if (ieee80211_skb_resize(local, skb, headroom, may_encrypt)) { + if (ieee80211_skb_resize(sdata, skb, headroom, may_encrypt)) { dev_kfree_skb(skb); rcu_read_unlock(); return; @@ -1945,7 +1941,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, head_need += IEEE80211_ENCRYPT_HEADROOM; head_need += local->tx_headroom; head_need = max_t(int, 0, head_need); - if (ieee80211_skb_resize(local, skb, head_need, true)) + if (ieee80211_skb_resize(sdata, skb, head_need, true)) goto fail; } diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig new file mode 100644 index 0000000..33e095b1 --- /dev/null +++ b/net/nfc/Kconfig @@ -0,0 +1,16 @@ +# +# NFC sybsystem configuration +# + +menuconfig NFC + depends on NET && EXPERIMENTAL + tristate "NFC subsystem support (EXPERIMENTAL)" + default n + help + Say Y here if you want to build support for NFC (Near field + communication) devices. + + To compile this support as a module, choose M here: the module will + be called nfc. + +source "drivers/nfc/Kconfig" diff --git a/net/nfc/Makefile b/net/nfc/Makefile new file mode 100644 index 0000000..16250c3 --- /dev/null +++ b/net/nfc/Makefile @@ -0,0 +1,7 @@ +# +# Makefile for the Linux NFC subsystem. +# + +obj-$(CONFIG_NFC) += nfc.o + +nfc-objs := core.o netlink.o af_nfc.o rawsock.o diff --git a/net/nfc/af_nfc.c b/net/nfc/af_nfc.c new file mode 100644 index 0000000..e982cef --- /dev/null +++ b/net/nfc/af_nfc.c @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/nfc.h> + +#include "nfc.h" + +static DEFINE_RWLOCK(proto_tab_lock); +static const struct nfc_protocol *proto_tab[NFC_SOCKPROTO_MAX]; + +static int nfc_sock_create(struct net *net, struct socket *sock, int proto, + int kern) +{ + int rc = -EPROTONOSUPPORT; + + if (net != &init_net) + return -EAFNOSUPPORT; + + if (proto < 0 || proto >= NFC_SOCKPROTO_MAX) + return -EINVAL; + + read_lock(&proto_tab_lock); + if (proto_tab[proto] && try_module_get(proto_tab[proto]->owner)) { + rc = proto_tab[proto]->create(net, sock, proto_tab[proto]); + module_put(proto_tab[proto]->owner); + } + read_unlock(&proto_tab_lock); + + return rc; +} + +static struct net_proto_family nfc_sock_family_ops = { + .owner = THIS_MODULE, + .family = PF_NFC, + .create = nfc_sock_create, +}; + +int nfc_proto_register(const struct nfc_protocol *nfc_proto) +{ + int rc; + + if (nfc_proto->id < 0 || nfc_proto->id >= NFC_SOCKPROTO_MAX) + return -EINVAL; + + rc = proto_register(nfc_proto->proto, 0); + if (rc) + return rc; + + write_lock(&proto_tab_lock); + if (proto_tab[nfc_proto->id]) + rc = -EBUSY; + else + proto_tab[nfc_proto->id] = nfc_proto; + write_unlock(&proto_tab_lock); + + return rc; +} +EXPORT_SYMBOL(nfc_proto_register); + +void nfc_proto_unregister(const struct nfc_protocol *nfc_proto) +{ + write_lock(&proto_tab_lock); + proto_tab[nfc_proto->id] = NULL; + write_unlock(&proto_tab_lock); + + proto_unregister(nfc_proto->proto); +} +EXPORT_SYMBOL(nfc_proto_unregister); + +int __init af_nfc_init(void) +{ + return sock_register(&nfc_sock_family_ops); +} + +void af_nfc_exit(void) +{ + sock_unregister(PF_NFC); +} diff --git a/net/nfc/core.c b/net/nfc/core.c new file mode 100644 index 0000000..b6fd4e1 --- /dev/null +++ b/net/nfc/core.c @@ -0,0 +1,468 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include "nfc.h" + +#define VERSION "0.1" + +int nfc_devlist_generation; +DEFINE_MUTEX(nfc_devlist_mutex); + +int nfc_printk(const char *level, const char *format, ...) +{ + struct va_format vaf; + va_list args; + int r; + + va_start(args, format); + + vaf.fmt = format; + vaf.va = &args; + + r = printk("%sNFC: %pV\n", level, &vaf); + + va_end(args); + + return r; +} +EXPORT_SYMBOL(nfc_printk); + +/** + * nfc_start_poll - start polling for nfc targets + * + * @dev: The nfc device that must start polling + * @protocols: bitset of nfc protocols that must be used for polling + * + * The device remains polling for targets until a target is found or + * the nfc_stop_poll function is called. + */ +int nfc_start_poll(struct nfc_dev *dev, u32 protocols) +{ + int rc; + + nfc_dbg("dev_name=%s protocols=0x%x", dev_name(&dev->dev), protocols); + + if (!protocols) + return -EINVAL; + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + goto error; + } + + if (dev->polling) { + rc = -EBUSY; + goto error; + } + + rc = dev->ops->start_poll(dev, protocols); + if (!rc) + dev->polling = true; + +error: + device_unlock(&dev->dev); + return rc; +} + +/** + * nfc_stop_poll - stop polling for nfc targets + * + * @dev: The nfc device that must stop polling + */ +int nfc_stop_poll(struct nfc_dev *dev) +{ + int rc = 0; + + nfc_dbg("dev_name=%s", dev_name(&dev->dev)); + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + goto error; + } + + if (!dev->polling) { + rc = -EINVAL; + goto error; + } + + dev->ops->stop_poll(dev); + dev->polling = false; + +error: + device_unlock(&dev->dev); + return rc; +} + +/** + * nfc_activate_target - prepare the target for data exchange + * + * @dev: The nfc device that found the target + * @target_idx: index of the target that must be activated + * @protocol: nfc protocol that will be used for data exchange + */ +int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol) +{ + int rc; + + nfc_dbg("dev_name=%s target_idx=%u protocol=%u", dev_name(&dev->dev), + target_idx, protocol); + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + goto error; + } + + rc = dev->ops->activate_target(dev, target_idx, protocol); + +error: + device_unlock(&dev->dev); + return rc; +} + +/** + * nfc_deactivate_target - deactivate a nfc target + * + * @dev: The nfc device that found the target + * @target_idx: index of the target that must be deactivated + */ +int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx) +{ + int rc = 0; + + nfc_dbg("dev_name=%s target_idx=%u", dev_name(&dev->dev), target_idx); + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + goto error; + } + + dev->ops->deactivate_target(dev, target_idx); + +error: + device_unlock(&dev->dev); + return rc; +} + +/** + * nfc_data_exchange - transceive data + * + * @dev: The nfc device that found the target + * @target_idx: index of the target + * @skb: data to be sent + * @cb: callback called when the response is received + * @cb_context: parameter for the callback function + * + * The user must wait for the callback before calling this function again. + */ +int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, + struct sk_buff *skb, + data_exchange_cb_t cb, + void *cb_context) +{ + int rc; + + nfc_dbg("dev_name=%s target_idx=%u skb->len=%u", dev_name(&dev->dev), + target_idx, skb->len); + + device_lock(&dev->dev); + + if (!device_is_registered(&dev->dev)) { + rc = -ENODEV; + kfree_skb(skb); + goto error; + } + + rc = dev->ops->data_exchange(dev, target_idx, skb, cb, cb_context); + +error: + device_unlock(&dev->dev); + return rc; +} + +/** + * nfc_alloc_skb - allocate a skb for data exchange responses + * + * @size: size to allocate + * @gfp: gfp flags + */ +struct sk_buff *nfc_alloc_skb(unsigned int size, gfp_t gfp) +{ + struct sk_buff *skb; + unsigned int total_size; + + total_size = size + 1; + skb = alloc_skb(total_size, gfp); + + if (skb) + skb_reserve(skb, 1); + + return skb; +} +EXPORT_SYMBOL(nfc_alloc_skb); + +/** + * nfc_targets_found - inform that targets were found + * + * @dev: The nfc device that found the targets + * @targets: array of nfc targets found + * @ntargets: targets array size + * + * The device driver must call this function when one or many nfc targets + * are found. After calling this function, the device driver must stop + * polling for targets. + */ +int nfc_targets_found(struct nfc_dev *dev, struct nfc_target *targets, + int n_targets) +{ + int i; + + nfc_dbg("dev_name=%s n_targets=%d", dev_name(&dev->dev), n_targets); + + dev->polling = false; + + for (i = 0; i < n_targets; i++) + targets[i].idx = dev->target_idx++; + + spin_lock_bh(&dev->targets_lock); + + dev->targets_generation++; + + kfree(dev->targets); + dev->targets = kmemdup(targets, n_targets * sizeof(struct nfc_target), + GFP_ATOMIC); + + if (!dev->targets) { + dev->n_targets = 0; + spin_unlock_bh(&dev->targets_lock); + return -ENOMEM; + } + + dev->n_targets = n_targets; + spin_unlock_bh(&dev->targets_lock); + + nfc_genl_targets_found(dev); + + return 0; +} +EXPORT_SYMBOL(nfc_targets_found); + +static void nfc_release(struct device *d) +{ + struct nfc_dev *dev = to_nfc_dev(d); + + nfc_dbg("dev_name=%s", dev_name(&dev->dev)); + + nfc_genl_data_exit(&dev->genl_data); + kfree(dev->targets); + kfree(dev); +} + +struct class nfc_class = { + .name = "nfc", + .dev_release = nfc_release, +}; +EXPORT_SYMBOL(nfc_class); + +static int match_idx(struct device *d, void *data) +{ + struct nfc_dev *dev = to_nfc_dev(d); + unsigned *idx = data; + + return dev->idx == *idx; +} + +struct nfc_dev *nfc_get_device(unsigned idx) +{ + struct device *d; + + d = class_find_device(&nfc_class, NULL, &idx, match_idx); + if (!d) + return NULL; + + return to_nfc_dev(d); +} + +/** + * nfc_allocate_device - allocate a new nfc device + * + * @ops: device operations + * @supported_protocols: NFC protocols supported by the device + */ +struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, + u32 supported_protocols) +{ + static atomic_t dev_no = ATOMIC_INIT(0); + struct nfc_dev *dev; + + if (!ops->start_poll || !ops->stop_poll || !ops->activate_target || + !ops->deactivate_target || !ops->data_exchange) + return NULL; + + if (!supported_protocols) + return NULL; + + dev = kzalloc(sizeof(struct nfc_dev), GFP_KERNEL); + if (!dev) + return NULL; + + dev->dev.class = &nfc_class; + dev->idx = atomic_inc_return(&dev_no) - 1; + dev_set_name(&dev->dev, "nfc%d", dev->idx); + device_initialize(&dev->dev); + + dev->ops = ops; + dev->supported_protocols = supported_protocols; + + spin_lock_init(&dev->targets_lock); + nfc_genl_data_init(&dev->genl_data); + + /* first generation must not be 0 */ + dev->targets_generation = 1; + + return dev; +} +EXPORT_SYMBOL(nfc_allocate_device); + +/** + * nfc_register_device - register a nfc device in the nfc subsystem + * + * @dev: The nfc device to register + */ +int nfc_register_device(struct nfc_dev *dev) +{ + int rc; + + nfc_dbg("dev_name=%s", dev_name(&dev->dev)); + + mutex_lock(&nfc_devlist_mutex); + nfc_devlist_generation++; + rc = device_add(&dev->dev); + mutex_unlock(&nfc_devlist_mutex); + + if (rc < 0) + return rc; + + rc = nfc_genl_device_added(dev); + if (rc) + nfc_dbg("The userspace won't be notified that the device %s was" + " added", dev_name(&dev->dev)); + + + return 0; +} +EXPORT_SYMBOL(nfc_register_device); + +/** + * nfc_unregister_device - unregister a nfc device in the nfc subsystem + * + * @dev: The nfc device to unregister + */ +void nfc_unregister_device(struct nfc_dev *dev) +{ + int rc; + + nfc_dbg("dev_name=%s", dev_name(&dev->dev)); + + mutex_lock(&nfc_devlist_mutex); + nfc_devlist_generation++; + + /* lock to avoid unregistering a device while an operation + is in progress */ + device_lock(&dev->dev); + device_del(&dev->dev); + device_unlock(&dev->dev); + + mutex_unlock(&nfc_devlist_mutex); + + rc = nfc_genl_device_removed(dev); + if (rc) + nfc_dbg("The userspace won't be notified that the device %s" + " was removed", dev_name(&dev->dev)); + +} +EXPORT_SYMBOL(nfc_unregister_device); + +static int __init nfc_init(void) +{ + int rc; + + nfc_info("NFC Core ver %s", VERSION); + + rc = class_register(&nfc_class); + if (rc) + return rc; + + rc = nfc_genl_init(); + if (rc) + goto err_genl; + + /* the first generation must not be 0 */ + nfc_devlist_generation = 1; + + rc = rawsock_init(); + if (rc) + goto err_rawsock; + + rc = af_nfc_init(); + if (rc) + goto err_af_nfc; + + return 0; + +err_af_nfc: + rawsock_exit(); +err_rawsock: + nfc_genl_exit(); +err_genl: + class_unregister(&nfc_class); + return rc; +} + +static void __exit nfc_exit(void) +{ + af_nfc_exit(); + rawsock_exit(); + nfc_genl_exit(); + class_unregister(&nfc_class); +} + +subsys_initcall(nfc_init); +module_exit(nfc_exit); + +MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>"); +MODULE_DESCRIPTION("NFC Core ver " VERSION); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL"); diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c new file mode 100644 index 0000000..ccdff79 --- /dev/null +++ b/net/nfc/netlink.c @@ -0,0 +1,537 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <net/genetlink.h> +#include <linux/nfc.h> +#include <linux/slab.h> + +#include "nfc.h" + +static struct genl_multicast_group nfc_genl_event_mcgrp = { + .name = NFC_GENL_MCAST_EVENT_NAME, +}; + +struct genl_family nfc_genl_family = { + .id = GENL_ID_GENERATE, + .hdrsize = 0, + .name = NFC_GENL_NAME, + .version = NFC_GENL_VERSION, + .maxattr = NFC_ATTR_MAX, +}; + +static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = { + [NFC_ATTR_DEVICE_INDEX] = { .type = NLA_U32 }, + [NFC_ATTR_DEVICE_NAME] = { .type = NLA_STRING, + .len = NFC_DEVICE_NAME_MAXSIZE }, + [NFC_ATTR_PROTOCOLS] = { .type = NLA_U32 }, +}; + +static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target, + struct netlink_callback *cb, int flags) +{ + void *hdr; + + nfc_dbg("entry"); + + hdr = genlmsg_put(msg, NETLINK_CB(cb->skb).pid, cb->nlh->nlmsg_seq, + &nfc_genl_family, flags, NFC_CMD_GET_TARGET); + if (!hdr) + return -EMSGSIZE; + + genl_dump_check_consistent(cb, hdr, &nfc_genl_family); + + NLA_PUT_U32(msg, NFC_ATTR_TARGET_INDEX, target->idx); + NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, + target->supported_protocols); + NLA_PUT_U16(msg, NFC_ATTR_TARGET_SENS_RES, target->sens_res); + NLA_PUT_U8(msg, NFC_ATTR_TARGET_SEL_RES, target->sel_res); + + return genlmsg_end(msg, hdr); + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static struct nfc_dev *__get_device_from_cb(struct netlink_callback *cb) +{ + struct nfc_dev *dev; + int rc; + u32 idx; + + rc = nlmsg_parse(cb->nlh, GENL_HDRLEN + nfc_genl_family.hdrsize, + nfc_genl_family.attrbuf, + nfc_genl_family.maxattr, + nfc_genl_policy); + if (rc < 0) + return ERR_PTR(rc); + + if (!nfc_genl_family.attrbuf[NFC_ATTR_DEVICE_INDEX]) + return ERR_PTR(-EINVAL); + + idx = nla_get_u32(nfc_genl_family.attrbuf[NFC_ATTR_DEVICE_INDEX]); + + dev = nfc_get_device(idx); + if (!dev) + return ERR_PTR(-ENODEV); + + return dev; +} + +static int nfc_genl_dump_targets(struct sk_buff *skb, + struct netlink_callback *cb) +{ + int i = cb->args[0]; + struct nfc_dev *dev = (struct nfc_dev *) cb->args[1]; + int rc; + + nfc_dbg("entry"); + + if (!dev) { + dev = __get_device_from_cb(cb); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + cb->args[1] = (long) dev; + } + + spin_lock_bh(&dev->targets_lock); + + cb->seq = dev->targets_generation; + + while (i < dev->n_targets) { + rc = nfc_genl_send_target(skb, &dev->targets[i], cb, + NLM_F_MULTI); + if (rc < 0) + break; + + i++; + } + + spin_unlock_bh(&dev->targets_lock); + + cb->args[0] = i; + + return skb->len; +} + +static int nfc_genl_dump_targets_done(struct netlink_callback *cb) +{ + struct nfc_dev *dev = (struct nfc_dev *) cb->args[1]; + + nfc_dbg("entry"); + + if (dev) + nfc_put_device(dev); + + return 0; +} + +int nfc_genl_targets_found(struct nfc_dev *dev) +{ + struct sk_buff *msg; + void *hdr; + + nfc_dbg("entry"); + + dev->genl_data.poll_req_pid = 0; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); + if (!msg) + return -ENOMEM; + + hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0, + NFC_EVENT_TARGETS_FOUND); + if (!hdr) + goto free_msg; + + NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx); + + genlmsg_end(msg, hdr); + + return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC); + +nla_put_failure: + genlmsg_cancel(msg, hdr); +free_msg: + nlmsg_free(msg); + return -EMSGSIZE; +} + +int nfc_genl_device_added(struct nfc_dev *dev) +{ + struct sk_buff *msg; + void *hdr; + + nfc_dbg("entry"); + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0, + NFC_EVENT_DEVICE_ADDED); + if (!hdr) + goto free_msg; + + NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)); + NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx); + NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols); + + genlmsg_end(msg, hdr); + + genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +free_msg: + nlmsg_free(msg); + return -EMSGSIZE; +} + +int nfc_genl_device_removed(struct nfc_dev *dev) +{ + struct sk_buff *msg; + void *hdr; + + nfc_dbg("entry"); + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0, + NFC_EVENT_DEVICE_REMOVED); + if (!hdr) + goto free_msg; + + NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx); + + genlmsg_end(msg, hdr); + + genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +free_msg: + nlmsg_free(msg); + return -EMSGSIZE; +} + +static int nfc_genl_send_device(struct sk_buff *msg, struct nfc_dev *dev, + u32 pid, u32 seq, + struct netlink_callback *cb, + int flags) +{ + void *hdr; + + nfc_dbg("entry"); + + hdr = genlmsg_put(msg, pid, seq, &nfc_genl_family, flags, + NFC_CMD_GET_DEVICE); + if (!hdr) + return -EMSGSIZE; + + if (cb) + genl_dump_check_consistent(cb, hdr, &nfc_genl_family); + + NLA_PUT_STRING(msg, NFC_ATTR_DEVICE_NAME, nfc_device_name(dev)); + NLA_PUT_U32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx); + NLA_PUT_U32(msg, NFC_ATTR_PROTOCOLS, dev->supported_protocols); + + return genlmsg_end(msg, hdr); + +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int nfc_genl_dump_devices(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; + struct nfc_dev *dev = (struct nfc_dev *) cb->args[1]; + bool first_call = false; + + nfc_dbg("entry"); + + if (!iter) { + first_call = true; + iter = kmalloc(sizeof(struct class_dev_iter), GFP_KERNEL); + if (!iter) + return -ENOMEM; + cb->args[0] = (long) iter; + } + + mutex_lock(&nfc_devlist_mutex); + + cb->seq = nfc_devlist_generation; + + if (first_call) { + nfc_device_iter_init(iter); + dev = nfc_device_iter_next(iter); + } + + while (dev) { + int rc; + + rc = nfc_genl_send_device(skb, dev, NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, + cb, NLM_F_MULTI); + if (rc < 0) + break; + + dev = nfc_device_iter_next(iter); + } + + mutex_unlock(&nfc_devlist_mutex); + + cb->args[1] = (long) dev; + + return skb->len; +} + +static int nfc_genl_dump_devices_done(struct netlink_callback *cb) +{ + struct class_dev_iter *iter = (struct class_dev_iter *) cb->args[0]; + + nfc_dbg("entry"); + + nfc_device_iter_exit(iter); + kfree(iter); + + return 0; +} + +static int nfc_genl_get_device(struct sk_buff *skb, struct genl_info *info) +{ + struct sk_buff *msg; + struct nfc_dev *dev; + u32 idx; + int rc = -ENOBUFS; + + nfc_dbg("entry"); + + if (!info->attrs[NFC_ATTR_DEVICE_INDEX]) + return -EINVAL; + + idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); + + dev = nfc_get_device(idx); + if (!dev) + return -ENODEV; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) { + rc = -ENOMEM; + goto out_putdev; + } + + rc = nfc_genl_send_device(msg, dev, info->snd_pid, info->snd_seq, + NULL, 0); + if (rc < 0) + goto out_free; + + nfc_put_device(dev); + + return genlmsg_reply(msg, info); + +out_free: + nlmsg_free(msg); +out_putdev: + nfc_put_device(dev); + return rc; +} + +static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info) +{ + struct nfc_dev *dev; + int rc; + u32 idx; + u32 protocols; + + nfc_dbg("entry"); + + if (!info->attrs[NFC_ATTR_DEVICE_INDEX] || + !info->attrs[NFC_ATTR_PROTOCOLS]) + return -EINVAL; + + idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); + protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]); + + dev = nfc_get_device(idx); + if (!dev) + return -ENODEV; + + mutex_lock(&dev->genl_data.genl_data_mutex); + + rc = nfc_start_poll(dev, protocols); + if (!rc) + dev->genl_data.poll_req_pid = info->snd_pid; + + mutex_unlock(&dev->genl_data.genl_data_mutex); + + nfc_put_device(dev); + return rc; +} + +static int nfc_genl_stop_poll(struct sk_buff *skb, struct genl_info *info) +{ + struct nfc_dev *dev; + int rc; + u32 idx; + + nfc_dbg("entry"); + + if (!info->attrs[NFC_ATTR_DEVICE_INDEX]) + return -EINVAL; + + idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); + + dev = nfc_get_device(idx); + if (!dev) + return -ENODEV; + + mutex_lock(&dev->genl_data.genl_data_mutex); + + if (dev->genl_data.poll_req_pid != info->snd_pid) { + rc = -EBUSY; + goto out; + } + + rc = nfc_stop_poll(dev); + dev->genl_data.poll_req_pid = 0; + +out: + mutex_unlock(&dev->genl_data.genl_data_mutex); + nfc_put_device(dev); + return rc; +} + +static struct genl_ops nfc_genl_ops[] = { + { + .cmd = NFC_CMD_GET_DEVICE, + .doit = nfc_genl_get_device, + .dumpit = nfc_genl_dump_devices, + .done = nfc_genl_dump_devices_done, + .policy = nfc_genl_policy, + }, + { + .cmd = NFC_CMD_START_POLL, + .doit = nfc_genl_start_poll, + .policy = nfc_genl_policy, + }, + { + .cmd = NFC_CMD_STOP_POLL, + .doit = nfc_genl_stop_poll, + .policy = nfc_genl_policy, + }, + { + .cmd = NFC_CMD_GET_TARGET, + .dumpit = nfc_genl_dump_targets, + .done = nfc_genl_dump_targets_done, + .policy = nfc_genl_policy, + }, +}; + +static int nfc_genl_rcv_nl_event(struct notifier_block *this, + unsigned long event, void *ptr) +{ + struct netlink_notify *n = ptr; + struct class_dev_iter iter; + struct nfc_dev *dev; + + if (event != NETLINK_URELEASE || n->protocol != NETLINK_GENERIC) + goto out; + + nfc_dbg("NETLINK_URELEASE event from id %d", n->pid); + + nfc_device_iter_init(&iter); + dev = nfc_device_iter_next(&iter); + + while (dev) { + mutex_lock(&dev->genl_data.genl_data_mutex); + if (dev->genl_data.poll_req_pid == n->pid) { + nfc_stop_poll(dev); + dev->genl_data.poll_req_pid = 0; + } + mutex_unlock(&dev->genl_data.genl_data_mutex); + dev = nfc_device_iter_next(&iter); + } + + nfc_device_iter_exit(&iter); + +out: + return NOTIFY_DONE; +} + +void nfc_genl_data_init(struct nfc_genl_data *genl_data) +{ + genl_data->poll_req_pid = 0; + mutex_init(&genl_data->genl_data_mutex); +} + +void nfc_genl_data_exit(struct nfc_genl_data *genl_data) +{ + mutex_destroy(&genl_data->genl_data_mutex); +} + +static struct notifier_block nl_notifier = { + .notifier_call = nfc_genl_rcv_nl_event, +}; + +/** + * nfc_genl_init() - Initialize netlink interface + * + * This initialization function registers the nfc netlink family. + */ +int __init nfc_genl_init(void) +{ + int rc; + + rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops, + ARRAY_SIZE(nfc_genl_ops)); + if (rc) + return rc; + + rc = genl_register_mc_group(&nfc_genl_family, &nfc_genl_event_mcgrp); + + netlink_register_notifier(&nl_notifier); + + return rc; +} + +/** + * nfc_genl_exit() - Deinitialize netlink interface + * + * This exit function unregisters the nfc netlink family. + */ +void nfc_genl_exit(void) +{ + netlink_unregister_notifier(&nl_notifier); + genl_unregister_family(&nfc_genl_family); +} diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h new file mode 100644 index 0000000..aaf9832 --- /dev/null +++ b/net/nfc/nfc.h @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef __LOCAL_NFC_H +#define __LOCAL_NFC_H + +#include <net/nfc.h> +#include <net/sock.h> + +__attribute__((format (printf, 2, 3))) +int nfc_printk(const char *level, const char *fmt, ...); + +#define nfc_info(fmt, arg...) nfc_printk(KERN_INFO, fmt, ##arg) +#define nfc_err(fmt, arg...) nfc_printk(KERN_ERR, fmt, ##arg) +#define nfc_dbg(fmt, arg...) pr_debug(fmt "\n", ##arg) + +struct nfc_protocol { + int id; + struct proto *proto; + struct module *owner; + int (*create)(struct net *net, struct socket *sock, + const struct nfc_protocol *nfc_proto); +}; + +struct nfc_rawsock { + struct sock sk; + struct nfc_dev *dev; + u32 target_idx; + struct work_struct tx_work; + bool tx_work_scheduled; +}; +#define nfc_rawsock(sk) ((struct nfc_rawsock *) sk) +#define to_rawsock_sk(_tx_work) \ + ((struct sock *) container_of(_tx_work, struct nfc_rawsock, tx_work)) + +int __init rawsock_init(void); +void rawsock_exit(void); + +int __init af_nfc_init(void); +void af_nfc_exit(void); +int nfc_proto_register(const struct nfc_protocol *nfc_proto); +void nfc_proto_unregister(const struct nfc_protocol *nfc_proto); + +extern int nfc_devlist_generation; +extern struct mutex nfc_devlist_mutex; + +int __init nfc_genl_init(void); +void nfc_genl_exit(void); + +void nfc_genl_data_init(struct nfc_genl_data *genl_data); +void nfc_genl_data_exit(struct nfc_genl_data *genl_data); + +int nfc_genl_targets_found(struct nfc_dev *dev); + +int nfc_genl_device_added(struct nfc_dev *dev); +int nfc_genl_device_removed(struct nfc_dev *dev); + +struct nfc_dev *nfc_get_device(unsigned idx); + +static inline void nfc_put_device(struct nfc_dev *dev) +{ + put_device(&dev->dev); +} + +static inline void nfc_device_iter_init(struct class_dev_iter *iter) +{ + class_dev_iter_init(iter, &nfc_class, NULL, NULL); +} + +static inline struct nfc_dev *nfc_device_iter_next(struct class_dev_iter *iter) +{ + struct device *d = class_dev_iter_next(iter); + if (!d) + return NULL; + + return to_nfc_dev(d); +} + +static inline void nfc_device_iter_exit(struct class_dev_iter *iter) +{ + class_dev_iter_exit(iter); +} + +int nfc_start_poll(struct nfc_dev *dev, u32 protocols); + +int nfc_stop_poll(struct nfc_dev *dev); + +int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol); + +int nfc_deactivate_target(struct nfc_dev *dev, u32 target_idx); + +int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, + struct sk_buff *skb, + data_exchange_cb_t cb, + void *cb_context); + +#endif /* __LOCAL_NFC_H */ diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c new file mode 100644 index 0000000..52de84a --- /dev/null +++ b/net/nfc/rawsock.c @@ -0,0 +1,354 @@ +/* + * Copyright (C) 2011 Instituto Nokia de Tecnologia + * + * Authors: + * Aloisio Almeida Jr <aloisio.almeida@openbossa.org> + * Lauro Ramos Venancio <lauro.venancio@openbossa.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the + * Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <net/tcp_states.h> +#include <linux/nfc.h> + +#include "nfc.h" + +static void rawsock_write_queue_purge(struct sock *sk) +{ + nfc_dbg("sk=%p", sk); + + spin_lock_bh(&sk->sk_write_queue.lock); + __skb_queue_purge(&sk->sk_write_queue); + nfc_rawsock(sk)->tx_work_scheduled = false; + spin_unlock_bh(&sk->sk_write_queue.lock); +} + +static void rawsock_report_error(struct sock *sk, int err) +{ + nfc_dbg("sk=%p err=%d", sk, err); + + sk->sk_shutdown = SHUTDOWN_MASK; + sk->sk_err = -err; + sk->sk_error_report(sk); + + rawsock_write_queue_purge(sk); +} + +static int rawsock_release(struct socket *sock) +{ + struct sock *sk = sock->sk; + + nfc_dbg("sock=%p", sock); + + sock_orphan(sk); + sock_put(sk); + + return 0; +} + +static int rawsock_connect(struct socket *sock, struct sockaddr *_addr, + int len, int flags) +{ + struct sock *sk = sock->sk; + struct sockaddr_nfc *addr = (struct sockaddr_nfc *)_addr; + struct nfc_dev *dev; + int rc = 0; + + nfc_dbg("sock=%p sk=%p flags=%d", sock, sk, flags); + + if (!addr || len < sizeof(struct sockaddr_nfc) || + addr->sa_family != AF_NFC) + return -EINVAL; + + nfc_dbg("addr dev_idx=%u target_idx=%u protocol=%u", addr->dev_idx, + addr->target_idx, addr->nfc_protocol); + + lock_sock(sk); + + if (sock->state == SS_CONNECTED) { + rc = -EISCONN; + goto error; + } + + dev = nfc_get_device(addr->dev_idx); + if (!dev) { + rc = -ENODEV; + goto error; + } + + if (addr->target_idx > dev->target_idx - 1 || + addr->target_idx < dev->target_idx - dev->n_targets) { + rc = -EINVAL; + goto error; + } + + if (addr->target_idx > dev->target_idx - 1 || + addr->target_idx < dev->target_idx - dev->n_targets) { + rc = -EINVAL; + goto error; + } + + rc = nfc_activate_target(dev, addr->target_idx, addr->nfc_protocol); + if (rc) + goto put_dev; + + nfc_rawsock(sk)->dev = dev; + nfc_rawsock(sk)->target_idx = addr->target_idx; + sock->state = SS_CONNECTED; + sk->sk_state = TCP_ESTABLISHED; + sk->sk_state_change(sk); + + release_sock(sk); + return 0; + +put_dev: + nfc_put_device(dev); +error: + release_sock(sk); + return rc; +} + +static int rawsock_add_header(struct sk_buff *skb) +{ + + if (skb_cow_head(skb, 1)) + return -ENOMEM; + + *skb_push(skb, 1) = 0; + + return 0; +} + +static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb, + int err) +{ + struct sock *sk = (struct sock *) context; + + BUG_ON(in_irq()); + + nfc_dbg("sk=%p err=%d", sk, err); + + if (err) + goto error; + + err = rawsock_add_header(skb); + if (err) + goto error; + + err = sock_queue_rcv_skb(sk, skb); + if (err) + goto error; + + spin_lock_bh(&sk->sk_write_queue.lock); + if (!skb_queue_empty(&sk->sk_write_queue)) + schedule_work(&nfc_rawsock(sk)->tx_work); + else + nfc_rawsock(sk)->tx_work_scheduled = false; + spin_unlock_bh(&sk->sk_write_queue.lock); + + sock_put(sk); + return; + +error: + rawsock_report_error(sk, err); + sock_put(sk); +} + +static void rawsock_tx_work(struct work_struct *work) +{ + struct sock *sk = to_rawsock_sk(work); + struct nfc_dev *dev = nfc_rawsock(sk)->dev; + u32 target_idx = nfc_rawsock(sk)->target_idx; + struct sk_buff *skb; + int rc; + + nfc_dbg("sk=%p target_idx=%u", sk, target_idx); + + if (sk->sk_shutdown & SEND_SHUTDOWN) { + rawsock_write_queue_purge(sk); + return; + } + + skb = skb_dequeue(&sk->sk_write_queue); + + sock_hold(sk); + rc = nfc_data_exchange(dev, target_idx, skb, + rawsock_data_exchange_complete, sk); + if (rc) { + rawsock_report_error(sk, rc); + sock_put(sk); + } +} + +static int rawsock_sendmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t len) +{ + struct sock *sk = sock->sk; + struct sk_buff *skb; + int rc; + + nfc_dbg("sock=%p sk=%p len=%zu", sock, sk, len); + + if (msg->msg_namelen) + return -EOPNOTSUPP; + + if (sock->state != SS_CONNECTED) + return -ENOTCONN; + + skb = sock_alloc_send_skb(sk, len, msg->msg_flags & MSG_DONTWAIT, + &rc); + if (!skb) + return rc; + + rc = memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len); + if (rc < 0) { + kfree_skb(skb); + return rc; + } + + spin_lock_bh(&sk->sk_write_queue.lock); + __skb_queue_tail(&sk->sk_write_queue, skb); + if (!nfc_rawsock(sk)->tx_work_scheduled) { + schedule_work(&nfc_rawsock(sk)->tx_work); + nfc_rawsock(sk)->tx_work_scheduled = true; + } + spin_unlock_bh(&sk->sk_write_queue.lock); + + return len; +} + +static int rawsock_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t len, int flags) +{ + int noblock = flags & MSG_DONTWAIT; + struct sock *sk = sock->sk; + struct sk_buff *skb; + int copied; + int rc; + + nfc_dbg("sock=%p sk=%p len=%zu flags=%d", sock, sk, len, flags); + + skb = skb_recv_datagram(sk, flags, noblock, &rc); + if (!skb) + return rc; + + msg->msg_namelen = 0; + + copied = skb->len; + if (len < copied) { + msg->msg_flags |= MSG_TRUNC; + copied = len; + } + + rc = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); + + skb_free_datagram(sk, skb); + + return rc ? : copied; +} + + +static const struct proto_ops rawsock_ops = { + .family = PF_NFC, + .owner = THIS_MODULE, + .release = rawsock_release, + .bind = sock_no_bind, + .connect = rawsock_connect, + .socketpair = sock_no_socketpair, + .accept = sock_no_accept, + .getname = sock_no_getname, + .poll = datagram_poll, + .ioctl = sock_no_ioctl, + .listen = sock_no_listen, + .shutdown = sock_no_shutdown, + .setsockopt = sock_no_setsockopt, + .getsockopt = sock_no_getsockopt, + .sendmsg = rawsock_sendmsg, + .recvmsg = rawsock_recvmsg, + .mmap = sock_no_mmap, +}; + +static void rawsock_destruct(struct sock *sk) +{ + nfc_dbg("sk=%p", sk); + + if (sk->sk_state == TCP_ESTABLISHED) { + nfc_deactivate_target(nfc_rawsock(sk)->dev, + nfc_rawsock(sk)->target_idx); + nfc_put_device(nfc_rawsock(sk)->dev); + } + + skb_queue_purge(&sk->sk_receive_queue); + + if (!sock_flag(sk, SOCK_DEAD)) { + nfc_err("Freeing alive NFC raw socket %p", sk); + return; + } +} + +static int rawsock_create(struct net *net, struct socket *sock, + const struct nfc_protocol *nfc_proto) +{ + struct sock *sk; + + nfc_dbg("sock=%p", sock); + + if (sock->type != SOCK_SEQPACKET) + return -ESOCKTNOSUPPORT; + + sock->ops = &rawsock_ops; + + sk = sk_alloc(net, PF_NFC, GFP_KERNEL, nfc_proto->proto); + if (!sk) + return -ENOMEM; + + sock_init_data(sock, sk); + sk->sk_protocol = nfc_proto->id; + sk->sk_destruct = rawsock_destruct; + sock->state = SS_UNCONNECTED; + + INIT_WORK(&nfc_rawsock(sk)->tx_work, rawsock_tx_work); + nfc_rawsock(sk)->tx_work_scheduled = false; + + return 0; +} + +static struct proto rawsock_proto = { + .name = "NFC_RAW", + .owner = THIS_MODULE, + .obj_size = sizeof(struct nfc_rawsock), +}; + +static const struct nfc_protocol rawsock_nfc_proto = { + .id = NFC_SOCKPROTO_RAW, + .proto = &rawsock_proto, + .owner = THIS_MODULE, + .create = rawsock_create +}; + +int __init rawsock_init(void) +{ + int rc; + + rc = nfc_proto_register(&rawsock_nfc_proto); + + return rc; +} + +void rawsock_exit(void) +{ + nfc_proto_unregister(&rawsock_nfc_proto); +} diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index 3633ab6..832f657 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -1084,3 +1084,14 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev, nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp); } EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); + +void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp) +{ + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + + nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); +} +EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 50ff82a..491b0ba 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -176,6 +176,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, + [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, }; /* policy for the key attributes */ @@ -206,6 +207,14 @@ nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, }; +/* policy for GTK rekey offload attributes */ +static const struct nla_policy +nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { + [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, + [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, + [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, +}; + /* ifidx get helper */ static int nl80211_get_ifidx(struct netlink_callback *cb) { @@ -5408,6 +5417,57 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct nlattr *tb[NUM_NL80211_REKEY_DATA]; + struct cfg80211_gtk_rekey_data rekey_data; + int err; + + if (!info->attrs[NL80211_ATTR_REKEY_DATA]) + return -EINVAL; + + err = nla_parse(tb, MAX_NL80211_REKEY_DATA, + nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), + nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), + nl80211_rekey_policy); + if (err) + return err; + + if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) + return -ERANGE; + if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) + return -ERANGE; + if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) + return -ERANGE; + + memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), + NL80211_KEK_LEN); + memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), + NL80211_KCK_LEN); + memcpy(rekey_data.replay_ctr, + nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), + NL80211_REPLAY_CTR_LEN); + + wdev_lock(wdev); + if (!wdev->current_bss) { + err = -ENOTCONN; + goto out; + } + + if (!rdev->ops->set_rekey_data) { + err = -EOPNOTSUPP; + goto out; + } + + err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data); + out: + wdev_unlock(wdev); + return err; +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -5939,6 +5999,14 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_WIPHY | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, + .doit = nl80211_set_rekey_data, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { @@ -6883,6 +6951,51 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, nlmsg_free(msg); } +void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp) +{ + struct sk_buff *msg; + struct nlattr *rekey_attr; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); + if (!hdr) { + nlmsg_free(msg); + return; + } + + NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); + NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); + NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); + + rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); + if (!rekey_attr) + goto nla_put_failure; + + NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, + NL80211_REPLAY_CTR_LEN, replay_ctr); + + nla_nest_end(msg, rekey_attr); + + if (genlmsg_end(msg, hdr) < 0) { + nlmsg_free(msg); + return; + } + + genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, + nl80211_mlme_mcgrp.id, gfp); + return; + + nla_put_failure: + genlmsg_cancel(msg, hdr); + nlmsg_free(msg); +} + void nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *peer, diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h index 2f1bfb8..5d69c56 100644 --- a/net/wireless/nl80211.h +++ b/net/wireless/nl80211.h @@ -109,4 +109,8 @@ nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *peer, u32 num_packets, gfp_t gfp); +void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, + struct net_device *netdev, const u8 *bssid, + const u8 *replay_ctr, gfp_t gfp); + #endif /* __NET_WIRELESS_NL80211_H */ diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 7a6c676..5d23503 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -132,7 +132,6 @@ EXPORT_SYMBOL(cfg80211_sched_scan_stopped); int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, bool driver_initiated) { - int err; struct net_device *dev; ASSERT_RDEV_LOCK(rdev); @@ -143,7 +142,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, dev = rdev->sched_scan_req->dev; if (!driver_initiated) { - err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev); + int err = rdev->ops->sched_scan_stop(&rdev->wiphy, dev); if (err) return err; } @@ -153,7 +152,7 @@ int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev, kfree(rdev->sched_scan_req); rdev->sched_scan_req = NULL; - return err; + return 0; } static void bss_release(struct kref *ref) |
