summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/mwifiex/sdio.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/mwifiex/sdio.c')
-rw-r--r--drivers/net/wireless/mwifiex/sdio.c2684
1 files changed, 0 insertions, 2684 deletions
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
deleted file mode 100644
index 78a8474..0000000
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ /dev/null
@@ -1,2684 +0,0 @@
-/*
- * Marvell Wireless LAN device driver: SDIO specific handling
- *
- * Copyright (C) 2011-2014, Marvell International Ltd.
- *
- * This software file (the "File") is distributed by Marvell International
- * Ltd. under the terms of the GNU General Public License Version 2, June 1991
- * (the "License"). You may use, redistribute and/or modify this File in
- * accordance with the terms and conditions of the License, a copy of which
- * is available by writing to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
- * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
- *
- * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
- * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
- * this warranty disclaimer.
- */
-
-#include <linux/firmware.h>
-
-#include "decl.h"
-#include "ioctl.h"
-#include "util.h"
-#include "fw.h"
-#include "main.h"
-#include "wmm.h"
-#include "11n.h"
-#include "sdio.h"
-
-
-#define SDIO_VERSION "1.0"
-
-/* The mwifiex_sdio_remove() callback function is called when
- * user removes this module from kernel space or ejects
- * the card from the slot. The driver handles these 2 cases
- * differently.
- * If the user is removing the module, the few commands (FUNC_SHUTDOWN,
- * HS_CANCEL etc.) are sent to the firmware.
- * If the card is removed, there is no need to send these command.
- *
- * The variable 'user_rmmod' is used to distinguish these two
- * scenarios. This flag is initialized as FALSE in case the card
- * is removed, and will be set to TRUE for module removal when
- * module_exit function is called.
- */
-static u8 user_rmmod;
-
-static struct mwifiex_if_ops sdio_ops;
-static unsigned long iface_work_flags;
-
-static struct semaphore add_remove_card_sem;
-
-static struct memory_type_mapping generic_mem_type_map[] = {
- {"DUMP", NULL, 0, 0xDD},
-};
-
-static struct memory_type_mapping mem_type_mapping_tbl[] = {
- {"ITCM", NULL, 0, 0xF0},
- {"DTCM", NULL, 0, 0xF1},
- {"SQRAM", NULL, 0, 0xF2},
- {"APU", NULL, 0, 0xF3},
- {"CIU", NULL, 0, 0xF4},
- {"ICU", NULL, 0, 0xF5},
- {"MAC", NULL, 0, 0xF6},
- {"EXT7", NULL, 0, 0xF7},
- {"EXT8", NULL, 0, 0xF8},
- {"EXT9", NULL, 0, 0xF9},
- {"EXT10", NULL, 0, 0xFA},
- {"EXT11", NULL, 0, 0xFB},
- {"EXT12", NULL, 0, 0xFC},
- {"EXT13", NULL, 0, 0xFD},
- {"EXTLAST", NULL, 0, 0xFE},
-};
-
-/*
- * SDIO probe.
- *
- * This function probes an mwifiex device and registers it. It allocates
- * the card structure, enables SDIO function number and initiates the
- * device registration and initialization procedure by adding a logical
- * interface.
- */
-static int
-mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
-{
- int ret;
- struct sdio_mmc_card *card = NULL;
-
- pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n",
- func->vendor, func->device, func->class, func->num);
-
- card = kzalloc(sizeof(struct sdio_mmc_card), GFP_KERNEL);
- if (!card)
- return -ENOMEM;
-
- card->func = func;
- card->device_id = id;
-
- func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
-
- if (id->driver_data) {
- struct mwifiex_sdio_device *data = (void *)id->driver_data;
-
- card->firmware = data->firmware;
- card->reg = data->reg;
- card->max_ports = data->max_ports;
- card->mp_agg_pkt_limit = data->mp_agg_pkt_limit;
- card->supports_sdio_new_mode = data->supports_sdio_new_mode;
- card->has_control_mask = data->has_control_mask;
- card->tx_buf_size = data->tx_buf_size;
- card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size;
- card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size;
- card->can_dump_fw = data->can_dump_fw;
- card->fw_dump_enh = data->fw_dump_enh;
- card->can_auto_tdls = data->can_auto_tdls;
- card->can_ext_scan = data->can_ext_scan;
- }
-
- sdio_claim_host(func);
- ret = sdio_enable_func(func);
- sdio_release_host(func);
-
- if (ret) {
- pr_err("%s: failed to enable function\n", __func__);
- kfree(card);
- return -EIO;
- }
-
- if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
- MWIFIEX_SDIO)) {
- pr_err("%s: add card failed\n", __func__);
- kfree(card);
- sdio_claim_host(func);
- ret = sdio_disable_func(func);
- sdio_release_host(func);
- ret = -1;
- }
-
- return ret;
-}
-
-/*
- * SDIO resume.
- *
- * Kernel needs to suspend all functions separately. Therefore all
- * registered functions must have drivers with suspend and resume
- * methods. Failing that the kernel simply removes the whole card.
- *
- * If already not resumed, this function turns on the traffic and
- * sends a host sleep cancel request to the firmware.
- */
-static int mwifiex_sdio_resume(struct device *dev)
-{
- struct sdio_func *func = dev_to_sdio_func(dev);
- struct sdio_mmc_card *card;
- struct mwifiex_adapter *adapter;
- mmc_pm_flag_t pm_flag = 0;
-
- if (func) {
- pm_flag = sdio_get_host_pm_caps(func);
- card = sdio_get_drvdata(func);
- if (!card || !card->adapter) {
- pr_err("resume: invalid card or adapter\n");
- return 0;
- }
- } else {
- pr_err("resume: sdio_func is not specified\n");
- return 0;
- }
-
- adapter = card->adapter;
-
- if (!adapter->is_suspended) {
- mwifiex_dbg(adapter, WARN,
- "device already resumed\n");
- return 0;
- }
-
- adapter->is_suspended = false;
-
- /* Disable Host Sleep */
- mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
- MWIFIEX_ASYNC_CMD);
-
- return 0;
-}
-
-/*
- * SDIO remove.
- *
- * This function removes the interface and frees up the card structure.
- */
-static void
-mwifiex_sdio_remove(struct sdio_func *func)
-{
- struct sdio_mmc_card *card;
- struct mwifiex_adapter *adapter;
- struct mwifiex_private *priv;
-
- card = sdio_get_drvdata(func);
- if (!card)
- return;
-
- adapter = card->adapter;
- if (!adapter || !adapter->priv_num)
- return;
-
- mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num);
-
- if (user_rmmod) {
- if (adapter->is_suspended)
- mwifiex_sdio_resume(adapter->dev);
-
- mwifiex_deauthenticate_all(adapter);
-
- priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
- mwifiex_disable_auto_ds(priv);
- mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
- }
-
- mwifiex_remove_card(card->adapter, &add_remove_card_sem);
-}
-
-/*
- * SDIO suspend.
- *
- * Kernel needs to suspend all functions separately. Therefore all
- * registered functions must have drivers with suspend and resume
- * methods. Failing that the kernel simply removes the whole card.
- *
- * If already not suspended, this function allocates and sends a host
- * sleep activate request to the firmware and turns off the traffic.
- */
-static int mwifiex_sdio_suspend(struct device *dev)
-{
- struct sdio_func *func = dev_to_sdio_func(dev);
- struct sdio_mmc_card *card;
- struct mwifiex_adapter *adapter;
- mmc_pm_flag_t pm_flag = 0;
- int ret = 0;
-
- if (func) {
- pm_flag = sdio_get_host_pm_caps(func);
- pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
- sdio_func_id(func), pm_flag);
- if (!(pm_flag & MMC_PM_KEEP_POWER)) {
- pr_err("%s: cannot remain alive while host is"
- " suspended\n", sdio_func_id(func));
- return -ENOSYS;
- }
-
- card = sdio_get_drvdata(func);
- if (!card || !card->adapter) {
- pr_err("suspend: invalid card or adapter\n");
- return 0;
- }
- } else {
- pr_err("suspend: sdio_func is not specified\n");
- return 0;
- }
-
- adapter = card->adapter;
-
- /* Enable the Host Sleep */
- if (!mwifiex_enable_hs(adapter)) {
- mwifiex_dbg(adapter, ERROR,
- "cmd: failed to suspend\n");
- adapter->hs_enabling = false;
- return -EFAULT;
- }
-
- mwifiex_dbg(adapter, INFO,
- "cmd: suspend with MMC_PM_KEEP_POWER\n");
- ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
-
- /* Indicate device suspended */
- adapter->is_suspended = true;
- adapter->hs_enabling = false;
-
- return ret;
-}
-
-/* Device ID for SD8786 */
-#define SDIO_DEVICE_ID_MARVELL_8786 (0x9116)
-/* Device ID for SD8787 */
-#define SDIO_DEVICE_ID_MARVELL_8787 (0x9119)
-/* Device ID for SD8797 */
-#define SDIO_DEVICE_ID_MARVELL_8797 (0x9129)
-/* Device ID for SD8897 */
-#define SDIO_DEVICE_ID_MARVELL_8897 (0x912d)
-/* Device ID for SD8887 */
-#define SDIO_DEVICE_ID_MARVELL_8887 (0x9135)
-/* Device ID for SD8801 */
-#define SDIO_DEVICE_ID_MARVELL_8801 (0x9139)
-/* Device ID for SD8997 */
-#define SDIO_DEVICE_ID_MARVELL_8997 (0x9141)
-
-
-/* WLAN IDs */
-static const struct sdio_device_id mwifiex_ids[] = {
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786),
- .driver_data = (unsigned long) &mwifiex_sdio_sd8786},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787),
- .driver_data = (unsigned long) &mwifiex_sdio_sd8787},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797),
- .driver_data = (unsigned long) &mwifiex_sdio_sd8797},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897),
- .driver_data = (unsigned long) &mwifiex_sdio_sd8897},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887),
- .driver_data = (unsigned long)&mwifiex_sdio_sd8887},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801),
- .driver_data = (unsigned long)&mwifiex_sdio_sd8801},
- {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997),
- .driver_data = (unsigned long)&mwifiex_sdio_sd8997},
- {},
-};
-
-MODULE_DEVICE_TABLE(sdio, mwifiex_ids);
-
-static const struct dev_pm_ops mwifiex_sdio_pm_ops = {
- .suspend = mwifiex_sdio_suspend,
- .resume = mwifiex_sdio_resume,
-};
-
-static struct sdio_driver mwifiex_sdio = {
- .name = "mwifiex_sdio",
- .id_table = mwifiex_ids,
- .probe = mwifiex_sdio_probe,
- .remove = mwifiex_sdio_remove,
- .drv = {
- .owner = THIS_MODULE,
- .pm = &mwifiex_sdio_pm_ops,
- }
-};
-
-/* Write data into SDIO card register. Caller claims SDIO device. */
-static int
-mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data)
-{
- int ret = -1;
- sdio_writeb(func, data, reg, &ret);
- return ret;
-}
-
-/*
- * This function writes data into SDIO card register.
- */
-static int
-mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret;
-
- sdio_claim_host(card->func);
- ret = mwifiex_write_reg_locked(card->func, reg, data);
- sdio_release_host(card->func);
-
- return ret;
-}
-
-/*
- * This function reads data from SDIO card register.
- */
-static int
-mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret = -1;
- u8 val;
-
- sdio_claim_host(card->func);
- val = sdio_readb(card->func, reg, &ret);
- sdio_release_host(card->func);
-
- *data = val;
-
- return ret;
-}
-
-/*
- * This function writes multiple data into SDIO card memory.
- *
- * This does not work in suspended mode.
- */
-static int
-mwifiex_write_data_sync(struct mwifiex_adapter *adapter,
- u8 *buffer, u32 pkt_len, u32 port)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret;
- u8 blk_mode =
- (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE;
- u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
- u32 blk_cnt =
- (blk_mode ==
- BLOCK_MODE) ? (pkt_len /
- MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len;
- u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
-
- if (adapter->is_suspended) {
- mwifiex_dbg(adapter, ERROR,
- "%s: not allowed while suspended\n", __func__);
- return -1;
- }
-
- sdio_claim_host(card->func);
-
- ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size);
-
- sdio_release_host(card->func);
-
- return ret;
-}
-
-/*
- * This function reads multiple data from SDIO card memory.
- */
-static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer,
- u32 len, u32 port, u8 claim)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret;
- u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE
- : BLOCK_MODE;
- u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1;
- u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE)
- : len;
- u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK);
-
- if (claim)
- sdio_claim_host(card->func);
-
- ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size);
-
- if (claim)
- sdio_release_host(card->func);
-
- return ret;
-}
-
-/*
- * This function wakes up the card.
- *
- * A host power up command is written to the card configuration
- * register to wake up the card.
- */
-static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter)
-{
- mwifiex_dbg(adapter, EVENT,
- "event: wakeup device...\n");
-
- return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP);
-}
-
-/*
- * This function is called after the card has woken up.
- *
- * The card configuration register is reset.
- */
-static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter)
-{
- mwifiex_dbg(adapter, EVENT,
- "cmd: wakeup device completed\n");
-
- return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0);
-}
-
-/*
- * This function is used to initialize IO ports for the
- * chipsets supporting SDIO new mode eg SD8897.
- */
-static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter)
-{
- u8 reg;
- struct sdio_mmc_card *card = adapter->card;
-
- adapter->ioport = MEM_PORT;
-
- /* enable sdio new mode */
- if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, &reg))
- return -1;
- if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg,
- reg | CMD53_NEW_MODE))
- return -1;
-
- /* Configure cmd port and enable reading rx length from the register */
- if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, &reg))
- return -1;
- if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0,
- reg | CMD_PORT_RD_LEN_EN))
- return -1;
-
- /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is
- * completed
- */
- if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, &reg))
- return -1;
- if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1,
- reg | CMD_PORT_AUTO_EN))
- return -1;
-
- return 0;
-}
-
-/* This function initializes the IO ports.
- *
- * The following operations are performed -
- * - Read the IO ports (0, 1 and 2)
- * - Set host interrupt Reset-To-Read to clear
- * - Set auto re-enable interrupt
- */
-static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter)
-{
- u8 reg;
- struct sdio_mmc_card *card = adapter->card;
-
- adapter->ioport = 0;
-
- if (card->supports_sdio_new_mode) {
- if (mwifiex_init_sdio_new_mode(adapter))
- return -1;
- goto cont;
- }
-
- /* Read the IO port */
- if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, &reg))
- adapter->ioport |= (reg & 0xff);
- else
- return -1;
-
- if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, &reg))
- adapter->ioport |= ((reg & 0xff) << 8);
- else
- return -1;
-
- if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, &reg))
- adapter->ioport |= ((reg & 0xff) << 16);
- else
- return -1;
-cont:
- mwifiex_dbg(adapter, INFO,
- "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport);
-
- /* Set Host interrupt reset to read to clear */
- if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, &reg))
- mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg,
- reg | card->reg->sdio_int_mask);
- else
- return -1;
-
- /* Dnld/Upld ready set to auto reset */
- if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, &reg))
- mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg,
- reg | AUTO_RE_ENABLE_INT);
- else
- return -1;
-
- return 0;
-}
-
-/*
- * This function sends data to the card.
- */
-static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter,
- u8 *payload, u32 pkt_len, u32 port)
-{
- u32 i = 0;
- int ret;
-
- do {
- ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port);
- if (ret) {
- i++;
- mwifiex_dbg(adapter, ERROR,
- "host_to_card, write iomem\t"
- "(%d) failed: %d\n", i, ret);
- if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
- mwifiex_dbg(adapter, ERROR,
- "write CFG reg failed\n");
-
- ret = -1;
- if (i > MAX_WRITE_IOMEM_RETRY)
- return ret;
- }
- } while (ret == -1);
-
- return ret;
-}
-
-/*
- * This function gets the read port.
- *
- * If control port bit is set in MP read bitmap, the control port
- * is returned, otherwise the current read port is returned and
- * the value is increased (provided it does not reach the maximum
- * limit, in which case it is reset to 1)
- */
-static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- u32 rd_bitmap = card->mp_rd_bitmap;
-
- mwifiex_dbg(adapter, DATA,
- "data: mp_rd_bitmap=0x%08x\n", rd_bitmap);
-
- if (card->supports_sdio_new_mode) {
- if (!(rd_bitmap & reg->data_port_mask))
- return -1;
- } else {
- if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask)))
- return -1;
- }
-
- if ((card->has_control_mask) &&
- (card->mp_rd_bitmap & CTRL_PORT_MASK)) {
- card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK);
- *port = CTRL_PORT;
- mwifiex_dbg(adapter, DATA,
- "data: port=%d mp_rd_bitmap=0x%08x\n",
- *port, card->mp_rd_bitmap);
- return 0;
- }
-
- if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port)))
- return -1;
-
- /* We are now handling the SDIO data ports */
- card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port));
- *port = card->curr_rd_port;
-
- if (++card->curr_rd_port == card->max_ports)
- card->curr_rd_port = reg->start_rd_port;
-
- mwifiex_dbg(adapter, DATA,
- "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n",
- *port, rd_bitmap, card->mp_rd_bitmap);
-
- return 0;
-}
-
-/*
- * This function gets the write port for data.
- *
- * The current write port is returned if available and the value is
- * increased (provided it does not reach the maximum limit, in which
- * case it is reset to 1)
- */
-static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- u32 wr_bitmap = card->mp_wr_bitmap;
-
- mwifiex_dbg(adapter, DATA,
- "data: mp_wr_bitmap=0x%08x\n", wr_bitmap);
-
- if (!(wr_bitmap & card->mp_data_port_mask)) {
- adapter->data_sent = true;
- return -EBUSY;
- }
-
- if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) {
- card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port));
- *port = card->curr_wr_port;
- if (++card->curr_wr_port == card->mp_end_port)
- card->curr_wr_port = reg->start_wr_port;
- } else {
- adapter->data_sent = true;
- return -EBUSY;
- }
-
- if ((card->has_control_mask) && (*port == CTRL_PORT)) {
- mwifiex_dbg(adapter, ERROR,
- "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
- *port, card->curr_wr_port, wr_bitmap,
- card->mp_wr_bitmap);
- return -1;
- }
-
- mwifiex_dbg(adapter, DATA,
- "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n",
- *port, wr_bitmap, card->mp_wr_bitmap);
-
- return 0;
-}
-
-/*
- * This function polls the card status.
- */
-static int
-mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits)
-{
- struct sdio_mmc_card *card = adapter->card;
- u32 tries;
- u8 cs;
-
- for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
- if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs))
- break;
- else if ((cs & bits) == bits)
- return 0;
-
- usleep_range(10, 20);
- }
-
- mwifiex_dbg(adapter, ERROR,
- "poll card status failed, tries = %d\n", tries);
-
- return -1;
-}
-
-/*
- * This function reads the firmware status.
- */
-static int
-mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- u8 fws0, fws1;
-
- if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0))
- return -1;
-
- if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1))
- return -1;
-
- *dat = (u16) ((fws1 << 8) | fws0);
-
- return 0;
-}
-
-/*
- * This function disables the host interrupt.
- *
- * The host interrupt mask is read, the disable bit is reset and
- * written back to the card host interrupt mask register.
- */
-static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- struct sdio_func *func = card->func;
-
- sdio_claim_host(func);
- mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0);
- sdio_release_irq(func);
- sdio_release_host(func);
-}
-
-/*
- * This function reads the interrupt status from card.
- */
-static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- u8 sdio_ireg;
- unsigned long flags;
-
- if (mwifiex_read_data_sync(adapter, card->mp_regs,
- card->reg->max_mp_regs,
- REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) {
- mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n");
- return;
- }
-
- sdio_ireg = card->mp_regs[card->reg->host_int_status_reg];
- if (sdio_ireg) {
- /*
- * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
- * For SDIO new mode CMD port interrupts
- * DN_LD_CMD_PORT_HOST_INT_STATUS and/or
- * UP_LD_CMD_PORT_HOST_INT_STATUS
- * Clear the interrupt status register
- */
- mwifiex_dbg(adapter, INTR,
- "int: sdio_ireg = %#x\n", sdio_ireg);
- spin_lock_irqsave(&adapter->int_lock, flags);
- adapter->int_status |= sdio_ireg;
- spin_unlock_irqrestore(&adapter->int_lock, flags);
- }
-}
-
-/*
- * SDIO interrupt handler.
- *
- * This function reads the interrupt status from firmware and handles
- * the interrupt in current thread (ksdioirqd) right away.
- */
-static void
-mwifiex_sdio_interrupt(struct sdio_func *func)
-{
- struct mwifiex_adapter *adapter;
- struct sdio_mmc_card *card;
-
- card = sdio_get_drvdata(func);
- if (!card || !card->adapter) {
- pr_debug("int: func=%p card=%p adapter=%p\n",
- func, card, card ? card->adapter : NULL);
- return;
- }
- adapter = card->adapter;
-
- if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP)
- adapter->ps_state = PS_STATE_AWAKE;
-
- mwifiex_interrupt_status(adapter);
- mwifiex_main_process(adapter);
-}
-
-/*
- * This function enables the host interrupt.
- *
- * The host interrupt enable mask is written to the card
- * host interrupt mask register.
- */
-static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- struct sdio_func *func = card->func;
- int ret;
-
- sdio_claim_host(func);
-
- /* Request the SDIO IRQ */
- ret = sdio_claim_irq(func, mwifiex_sdio_interrupt);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "claim irq failed: ret=%d\n", ret);
- goto out;
- }
-
- /* Simply write the mask to the register */
- ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg,
- card->reg->host_int_enable);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "enable host interrupt failed\n");
- sdio_release_irq(func);
- }
-
-out:
- sdio_release_host(func);
- return ret;
-}
-
-/*
- * This function sends a data buffer to the card.
- */
-static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter,
- u32 *type, u8 *buffer,
- u32 npayload, u32 ioport)
-{
- int ret;
- u32 nb;
-
- if (!buffer) {
- mwifiex_dbg(adapter, ERROR,
- "%s: buffer is NULL\n", __func__);
- return -1;
- }
-
- ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1);
-
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "%s: read iomem failed: %d\n", __func__,
- ret);
- return -1;
- }
-
- nb = le16_to_cpu(*(__le16 *) (buffer));
- if (nb > npayload) {
- mwifiex_dbg(adapter, ERROR,
- "%s: invalid packet, nb=%d npayload=%d\n",
- __func__, nb, npayload);
- return -1;
- }
-
- *type = le16_to_cpu(*(__le16 *) (buffer + 2));
-
- return ret;
-}
-
-/*
- * This function downloads the firmware to the card.
- *
- * Firmware is downloaded to the card in blocks. Every block download
- * is tested for CRC errors, and retried a number of times before
- * returning failure.
- */
-static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
- struct mwifiex_fw_image *fw)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- int ret;
- u8 *firmware = fw->fw_buf;
- u32 firmware_len = fw->fw_len;
- u32 offset = 0;
- u8 base0, base1;
- u8 *fwbuf;
- u16 len = 0;
- u32 txlen, tx_blocks = 0, tries;
- u32 i = 0;
-
- if (!firmware_len) {
- mwifiex_dbg(adapter, ERROR,
- "firmware image not found! Terminating download\n");
- return -1;
- }
-
- mwifiex_dbg(adapter, INFO,
- "info: downloading FW image (%d bytes)\n",
- firmware_len);
-
- /* Assume that the allocated buffer is 8-byte aligned */
- fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL);
- if (!fwbuf)
- return -ENOMEM;
-
- sdio_claim_host(card->func);
-
- /* Perform firmware data transfer */
- do {
- /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY
- bits */
- ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY |
- DN_LD_CARD_RDY);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "FW download with helper:\t"
- "poll status timeout @ %d\n", offset);
- goto done;
- }
-
- /* More data? */
- if (offset >= firmware_len)
- break;
-
- for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
- ret = mwifiex_read_reg(adapter, reg->base_0_reg,
- &base0);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "dev BASE0 register read failed:\t"
- "base0=%#04X(%d). Terminating dnld\n",
- base0, base0);
- goto done;
- }
- ret = mwifiex_read_reg(adapter, reg->base_1_reg,
- &base1);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "dev BASE1 register read failed:\t"
- "base1=%#04X(%d). Terminating dnld\n",
- base1, base1);
- goto done;
- }
- len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff));
-
- if (len)
- break;
-
- usleep_range(10, 20);
- }
-
- if (!len) {
- break;
- } else if (len > MWIFIEX_UPLD_SIZE) {
- mwifiex_dbg(adapter, ERROR,
- "FW dnld failed @ %d, invalid length %d\n",
- offset, len);
- ret = -1;
- goto done;
- }
-
- txlen = len;
-
- if (len & BIT(0)) {
- i++;
- if (i > MAX_WRITE_IOMEM_RETRY) {
- mwifiex_dbg(adapter, ERROR,
- "FW dnld failed @ %d, over max retry\n",
- offset);
- ret = -1;
- goto done;
- }
- mwifiex_dbg(adapter, ERROR,
- "CRC indicated by the helper:\t"
- "len = 0x%04X, txlen = %d\n", len, txlen);
- len &= ~BIT(0);
- /* Setting this to 0 to resend from same offset */
- txlen = 0;
- } else {
- i = 0;
-
- /* Set blocksize to transfer - checking for last
- block */
- if (firmware_len - offset < txlen)
- txlen = firmware_len - offset;
-
- tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1)
- / MWIFIEX_SDIO_BLOCK_SIZE;
-
- /* Copy payload to buffer */
- memmove(fwbuf, &firmware[offset], txlen);
- }
-
- ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks *
- MWIFIEX_SDIO_BLOCK_SIZE,
- adapter->ioport);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "FW download, write iomem (%d) failed @ %d\n",
- i, offset);
- if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04))
- mwifiex_dbg(adapter, ERROR,
- "write CFG reg failed\n");
-
- ret = -1;
- goto done;
- }
-
- offset += txlen;
- } while (true);
-
- sdio_release_host(card->func);
-
- mwifiex_dbg(adapter, MSG,
- "info: FW download over, size %d bytes\n", offset);
-
- ret = 0;
-done:
- kfree(fwbuf);
- return ret;
-}
-
-/*
- * This function checks the firmware status in card.
- *
- * The winner interface is also determined by this function.
- */
-static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter,
- u32 poll_num)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret = 0;
- u16 firmware_stat;
- u32 tries;
- u8 winner_status;
-
- /* Wait for firmware initialization event */
- for (tries = 0; tries < poll_num; tries++) {
- ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat);
- if (ret)
- continue;
- if (firmware_stat == FIRMWARE_READY_SDIO) {
- ret = 0;
- break;
- } else {
- msleep(100);
- ret = -1;
- }
- }
-
- if (ret) {
- if (mwifiex_read_reg
- (adapter, card->reg->status_reg_0, &winner_status))
- winner_status = 0;
-
- if (winner_status)
- adapter->winner = 0;
- else
- adapter->winner = 1;
- }
- return ret;
-}
-
-/*
- * This function decode sdio aggreation pkt.
- *
- * Based on the the data block size and pkt_len,
- * skb data will be decoded to few packets.
- */
-static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter,
- struct sk_buff *skb)
-{
- u32 total_pkt_len, pkt_len;
- struct sk_buff *skb_deaggr;
- u32 pkt_type;
- u16 blk_size;
- u8 blk_num;
- u8 *data;
-
- data = skb->data;
- total_pkt_len = skb->len;
-
- while (total_pkt_len >= (SDIO_HEADER_OFFSET + INTF_HEADER_LEN)) {
- if (total_pkt_len < adapter->sdio_rx_block_size)
- break;
- blk_num = *(data + BLOCK_NUMBER_OFFSET);
- blk_size = adapter->sdio_rx_block_size * blk_num;
- if (blk_size > total_pkt_len) {
- mwifiex_dbg(adapter, ERROR,
- "%s: error in blk_size,\t"
- "blk_num=%d, blk_size=%d, total_pkt_len=%d\n",
- __func__, blk_num, blk_size, total_pkt_len);
- break;
- }
- pkt_len = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET));
- pkt_type = le16_to_cpu(*(__le16 *)(data + SDIO_HEADER_OFFSET +
- 2));
- if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) {
- mwifiex_dbg(adapter, ERROR,
- "%s: error in pkt_len,\t"
- "pkt_len=%d, blk_size=%d\n",
- __func__, pkt_len, blk_size);
- break;
- }
- skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len,
- GFP_KERNEL | GFP_DMA);
- if (!skb_deaggr)
- break;
- skb_put(skb_deaggr, pkt_len);
- memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len);
- skb_pull(skb_deaggr, INTF_HEADER_LEN);
-
- mwifiex_handle_rx_packet(adapter, skb_deaggr);
- data += blk_size;
- total_pkt_len -= blk_size;
- }
-}
-
-/*
- * This function decodes a received packet.
- *
- * Based on the type, the packet is treated as either a data, or
- * a command response, or an event, and the correct handler
- * function is invoked.
- */
-static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
- struct sk_buff *skb, u32 upld_typ)
-{
- u8 *cmd_buf;
- __le16 *curr_ptr = (__le16 *)skb->data;
- u16 pkt_len = le16_to_cpu(*curr_ptr);
- struct mwifiex_rxinfo *rx_info;
-
- if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) {
- skb_trim(skb, pkt_len);
- skb_pull(skb, INTF_HEADER_LEN);
- }
-
- switch (upld_typ) {
- case MWIFIEX_TYPE_AGGR_DATA:
- mwifiex_dbg(adapter, INFO,
- "info: --- Rx: Aggr Data packet ---\n");
- rx_info = MWIFIEX_SKB_RXCB(skb);
- rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA;
- if (adapter->rx_work_enabled) {
- skb_queue_tail(&adapter->rx_data_q, skb);
- atomic_inc(&adapter->rx_pending);
- adapter->data_received = true;
- } else {
- mwifiex_deaggr_sdio_pkt(adapter, skb);
- dev_kfree_skb_any(skb);
- }
- break;
-
- case MWIFIEX_TYPE_DATA:
- mwifiex_dbg(adapter, DATA,
- "info: --- Rx: Data packet ---\n");
- if (adapter->rx_work_enabled) {
- skb_queue_tail(&adapter->rx_data_q, skb);
- adapter->data_received = true;
- atomic_inc(&adapter->rx_pending);
- } else {
- mwifiex_handle_rx_packet(adapter, skb);
- }
- break;
-
- case MWIFIEX_TYPE_CMD:
- mwifiex_dbg(adapter, CMD,
- "info: --- Rx: Cmd Response ---\n");
- /* take care of curr_cmd = NULL case */
- if (!adapter->curr_cmd) {
- cmd_buf = adapter->upld_buf;
-
- if (adapter->ps_state == PS_STATE_SLEEP_CFM)
- mwifiex_process_sleep_confirm_resp(adapter,
- skb->data,
- skb->len);
-
- memcpy(cmd_buf, skb->data,
- min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER,
- skb->len));
-
- dev_kfree_skb_any(skb);
- } else {
- adapter->cmd_resp_received = true;
- adapter->curr_cmd->resp_skb = skb;
- }
- break;
-
- case MWIFIEX_TYPE_EVENT:
- mwifiex_dbg(adapter, EVENT,
- "info: --- Rx: Event ---\n");
- adapter->event_cause = le32_to_cpu(*(__le32 *) skb->data);
-
- if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE))
- memcpy(adapter->event_body,
- skb->data + MWIFIEX_EVENT_HEADER_LEN,
- skb->len);
-
- /* event cause has been saved to adapter->event_cause */
- adapter->event_received = true;
- adapter->event_skb = skb;
-
- break;
-
- default:
- mwifiex_dbg(adapter, ERROR,
- "unknown upload type %#x\n", upld_typ);
- dev_kfree_skb_any(skb);
- break;
- }
-
- return 0;
-}
-
-/*
- * This function transfers received packets from card to driver, performing
- * aggregation if required.
- *
- * For data received on control port, or if aggregation is disabled, the
- * received buffers are uploaded as separate packets. However, if aggregation
- * is enabled and required, the buffers are copied onto an aggregation buffer,
- * provided there is space left, processed and finally uploaded.
- */
-static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter,
- u16 rx_len, u8 port)
-{
- struct sdio_mmc_card *card = adapter->card;
- s32 f_do_rx_aggr = 0;
- s32 f_do_rx_cur = 0;
- s32 f_aggr_cur = 0;
- s32 f_post_aggr_cur = 0;
- struct sk_buff *skb_deaggr;
- struct sk_buff *skb = NULL;
- u32 pkt_len, pkt_type, mport, pind;
- u8 *curr_ptr;
-
- if ((card->has_control_mask) && (port == CTRL_PORT)) {
- /* Read the command Resp without aggr */
- mwifiex_dbg(adapter, CMD,
- "info: %s: no aggregation for cmd\t"
- "response\n", __func__);
-
- f_do_rx_cur = 1;
- goto rx_curr_single;
- }
-
- if (!card->mpa_rx.enabled) {
- mwifiex_dbg(adapter, WARN,
- "info: %s: rx aggregation disabled\n",
- __func__);
-
- f_do_rx_cur = 1;
- goto rx_curr_single;
- }
-
- if ((!card->has_control_mask && (card->mp_rd_bitmap &
- card->reg->data_port_mask)) ||
- (card->has_control_mask && (card->mp_rd_bitmap &
- (~((u32) CTRL_PORT_MASK))))) {
- /* Some more data RX pending */
- mwifiex_dbg(adapter, INFO,
- "info: %s: not last packet\n", __func__);
-
- if (MP_RX_AGGR_IN_PROGRESS(card)) {
- if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) {
- f_aggr_cur = 1;
- } else {
- /* No room in Aggr buf, do rx aggr now */
- f_do_rx_aggr = 1;
- f_post_aggr_cur = 1;
- }
- } else {
- /* Rx aggr not in progress */
- f_aggr_cur = 1;
- }
-
- } else {
- /* No more data RX pending */
- mwifiex_dbg(adapter, INFO,
- "info: %s: last packet\n", __func__);
-
- if (MP_RX_AGGR_IN_PROGRESS(card)) {
- f_do_rx_aggr = 1;
- if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len))
- f_aggr_cur = 1;
- else
- /* No room in Aggr buf, do rx aggr now */
- f_do_rx_cur = 1;
- } else {
- f_do_rx_cur = 1;
- }
- }
-
- if (f_aggr_cur) {
- mwifiex_dbg(adapter, INFO,
- "info: current packet aggregation\n");
- /* Curr pkt can be aggregated */
- mp_rx_aggr_setup(card, rx_len, port);
-
- if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) ||
- mp_rx_aggr_port_limit_reached(card)) {
- mwifiex_dbg(adapter, INFO,
- "info: %s: aggregated packet\t"
- "limit reached\n", __func__);
- /* No more pkts allowed in Aggr buf, rx it */
- f_do_rx_aggr = 1;
- }
- }
-
- if (f_do_rx_aggr) {
- /* do aggr RX now */
- mwifiex_dbg(adapter, DATA,
- "info: do_rx_aggr: num of packets: %d\n",
- card->mpa_rx.pkt_cnt);
-
- if (card->supports_sdio_new_mode) {
- int i;
- u32 port_count;
-
- for (i = 0, port_count = 0; i < card->max_ports; i++)
- if (card->mpa_rx.ports & BIT(i))
- port_count++;
-
- /* Reading data from "start_port + 0" to "start_port +
- * port_count -1", so decrease the count by 1
- */
- port_count--;
- mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
- (port_count << 8)) + card->mpa_rx.start_port;
- } else {
- mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
- (card->mpa_rx.ports << 4)) +
- card->mpa_rx.start_port;
- }
-
- if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf,
- card->mpa_rx.buf_len, mport, 1))
- goto error;
-
- curr_ptr = card->mpa_rx.buf;
-
- for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) {
- u32 *len_arr = card->mpa_rx.len_arr;
-
- /* get curr PKT len & type */
- pkt_len = le16_to_cpu(*(__le16 *) &curr_ptr[0]);
- pkt_type = le16_to_cpu(*(__le16 *) &curr_ptr[2]);
-
- /* copy pkt to deaggr buf */
- skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind],
- GFP_KERNEL |
- GFP_DMA);
- if (!skb_deaggr) {
- mwifiex_dbg(adapter, ERROR, "skb allocation failure\t"
- "drop pkt len=%d type=%d\n",
- pkt_len, pkt_type);
- curr_ptr += len_arr[pind];
- continue;
- }
-
- skb_put(skb_deaggr, len_arr[pind]);
-
- if ((pkt_type == MWIFIEX_TYPE_DATA ||
- (pkt_type == MWIFIEX_TYPE_AGGR_DATA &&
- adapter->sdio_rx_aggr_enable)) &&
- (pkt_len <= len_arr[pind])) {
-
- memcpy(skb_deaggr->data, curr_ptr, pkt_len);
-
- skb_trim(skb_deaggr, pkt_len);
-
- /* Process de-aggr packet */
- mwifiex_decode_rx_packet(adapter, skb_deaggr,
- pkt_type);
- } else {
- mwifiex_dbg(adapter, ERROR,
- "drop wrong aggr pkt:\t"
- "sdio_single_port_rx_aggr=%d\t"
- "type=%d len=%d max_len=%d\n",
- adapter->sdio_rx_aggr_enable,
- pkt_type, pkt_len, len_arr[pind]);
- dev_kfree_skb_any(skb_deaggr);
- }
- curr_ptr += len_arr[pind];
- }
- MP_RX_AGGR_BUF_RESET(card);
- }
-
-rx_curr_single:
- if (f_do_rx_cur) {
- mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n",
- port, rx_len);
-
- skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
- if (!skb) {
- mwifiex_dbg(adapter, ERROR,
- "single skb allocated fail,\t"
- "drop pkt port=%d len=%d\n", port, rx_len);
- if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
- card->mpa_rx.buf, rx_len,
- adapter->ioport + port))
- goto error;
- return 0;
- }
-
- skb_put(skb, rx_len);
-
- if (mwifiex_sdio_card_to_host(adapter, &pkt_type,
- skb->data, skb->len,
- adapter->ioport + port))
- goto error;
- if (!adapter->sdio_rx_aggr_enable &&
- pkt_type == MWIFIEX_TYPE_AGGR_DATA) {
- mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t"
- "current SDIO RX Aggr not enabled\n",
- pkt_type);
- dev_kfree_skb_any(skb);
- return 0;
- }
-
- mwifiex_decode_rx_packet(adapter, skb, pkt_type);
- }
- if (f_post_aggr_cur) {
- mwifiex_dbg(adapter, INFO,
- "info: current packet aggregation\n");
- /* Curr pkt can be aggregated */
- mp_rx_aggr_setup(card, rx_len, port);
- }
-
- return 0;
-error:
- if (MP_RX_AGGR_IN_PROGRESS(card))
- MP_RX_AGGR_BUF_RESET(card);
-
- if (f_do_rx_cur && skb)
- /* Single transfer pending. Free curr buff also */
- dev_kfree_skb_any(skb);
-
- return -1;
-}
-
-/*
- * This function checks the current interrupt status.
- *
- * The following interrupts are checked and handled by this function -
- * - Data sent
- * - Command sent
- * - Packets received
- *
- * Since the firmware does not generate download ready interrupt if the
- * port updated is command port only, command sent interrupt checking
- * should be done manually, and for every SDIO interrupt.
- *
- * In case of Rx packets received, the packets are uploaded from card to
- * host and processed accordingly.
- */
-static int mwifiex_process_int_status(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- int ret = 0;
- u8 sdio_ireg;
- struct sk_buff *skb;
- u8 port = CTRL_PORT;
- u32 len_reg_l, len_reg_u;
- u32 rx_blocks;
- u16 rx_len;
- unsigned long flags;
- u32 bitmap;
- u8 cr;
-
- spin_lock_irqsave(&adapter->int_lock, flags);
- sdio_ireg = adapter->int_status;
- adapter->int_status = 0;
- spin_unlock_irqrestore(&adapter->int_lock, flags);
-
- if (!sdio_ireg)
- return ret;
-
- /* Following interrupt is only for SDIO new mode */
- if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent)
- adapter->cmd_sent = false;
-
- /* Following interrupt is only for SDIO new mode */
- if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) {
- u32 pkt_type;
-
- /* read the len of control packet */
- rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8;
- rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0];
- rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE);
- if (rx_len <= INTF_HEADER_LEN ||
- (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
- MWIFIEX_RX_DATA_BUF_SIZE)
- return -1;
- rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
- mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len);
-
- skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL | GFP_DMA);
- if (!skb)
- return -1;
-
- skb_put(skb, rx_len);
-
- if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data,
- skb->len, adapter->ioport |
- CMD_PORT_SLCT)) {
- mwifiex_dbg(adapter, ERROR,
- "%s: failed to card_to_host", __func__);
- dev_kfree_skb_any(skb);
- goto term_cmd;
- }
-
- if ((pkt_type != MWIFIEX_TYPE_CMD) &&
- (pkt_type != MWIFIEX_TYPE_EVENT))
- mwifiex_dbg(adapter, ERROR,
- "%s:Received wrong packet on cmd port",
- __func__);
-
- mwifiex_decode_rx_packet(adapter, skb, pkt_type);
- }
-
- if (sdio_ireg & DN_LD_HOST_INT_STATUS) {
- bitmap = (u32) card->mp_regs[reg->wr_bitmap_l];
- bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8;
- if (card->supports_sdio_new_mode) {
- bitmap |=
- ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16;
- bitmap |=
- ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24;
- }
- card->mp_wr_bitmap = bitmap;
-
- mwifiex_dbg(adapter, INTR,
- "int: DNLD: wr_bitmap=0x%x\n",
- card->mp_wr_bitmap);
- if (adapter->data_sent &&
- (card->mp_wr_bitmap & card->mp_data_port_mask)) {
- mwifiex_dbg(adapter, INTR,
- "info: <--- Tx DONE Interrupt --->\n");
- adapter->data_sent = false;
- }
- }
-
- /* As firmware will not generate download ready interrupt if the port
- updated is command port only, cmd_sent should be done for any SDIO
- interrupt. */
- if (card->has_control_mask && adapter->cmd_sent) {
- /* Check if firmware has attach buffer at command port and
- update just that in wr_bit_map. */
- card->mp_wr_bitmap |=
- (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK;
- if (card->mp_wr_bitmap & CTRL_PORT_MASK)
- adapter->cmd_sent = false;
- }
-
- mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n",
- adapter->cmd_sent, adapter->data_sent);
- if (sdio_ireg & UP_LD_HOST_INT_STATUS) {
- bitmap = (u32) card->mp_regs[reg->rd_bitmap_l];
- bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8;
- if (card->supports_sdio_new_mode) {
- bitmap |=
- ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16;
- bitmap |=
- ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24;
- }
- card->mp_rd_bitmap = bitmap;
- mwifiex_dbg(adapter, INTR,
- "int: UPLD: rd_bitmap=0x%x\n",
- card->mp_rd_bitmap);
-
- while (true) {
- ret = mwifiex_get_rd_port(adapter, &port);
- if (ret) {
- mwifiex_dbg(adapter, INFO,
- "info: no more rd_port available\n");
- break;
- }
- len_reg_l = reg->rd_len_p0_l + (port << 1);
- len_reg_u = reg->rd_len_p0_u + (port << 1);
- rx_len = ((u16) card->mp_regs[len_reg_u]) << 8;
- rx_len |= (u16) card->mp_regs[len_reg_l];
- mwifiex_dbg(adapter, INFO,
- "info: RX: port=%d rx_len=%u\n",
- port, rx_len);
- rx_blocks =
- (rx_len + MWIFIEX_SDIO_BLOCK_SIZE -
- 1) / MWIFIEX_SDIO_BLOCK_SIZE;
- if (rx_len <= INTF_HEADER_LEN ||
- (card->mpa_rx.enabled &&
- ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) >
- card->mpa_rx.buf_size))) {
- mwifiex_dbg(adapter, ERROR,
- "invalid rx_len=%d\n",
- rx_len);
- return -1;
- }
-
- rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE);
- mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n",
- rx_len);
-
- if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len,
- port)) {
- mwifiex_dbg(adapter, ERROR,
- "card_to_host_mpa failed: int status=%#x\n",
- sdio_ireg);
- goto term_cmd;
- }
- }
- }
-
- return 0;
-
-term_cmd:
- /* terminate cmd */
- if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
- mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n");
- else
- mwifiex_dbg(adapter, INFO,
- "info: CFG reg val = %d\n", cr);
-
- if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04)))
- mwifiex_dbg(adapter, ERROR,
- "write CFG reg failed\n");
- else
- mwifiex_dbg(adapter, INFO, "info: write success\n");
-
- if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr))
- mwifiex_dbg(adapter, ERROR,
- "read CFG reg failed\n");
- else
- mwifiex_dbg(adapter, INFO,
- "info: CFG reg val =%x\n", cr);
-
- return -1;
-}
-
-/*
- * This function aggregates transmission buffers in driver and downloads
- * the aggregated packet to card.
- *
- * The individual packets are aggregated by copying into an aggregation
- * buffer and then downloaded to the card. Previous unsent packets in the
- * aggregation buffer are pre-copied first before new packets are added.
- * Aggregation is done till there is space left in the aggregation buffer,
- * or till new packets are available.
- *
- * The function will only download the packet to the card when aggregation
- * stops, otherwise it will just aggregate the packet in aggregation buffer
- * and return.
- */
-static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter,
- u8 *payload, u32 pkt_len, u32 port,
- u32 next_pkt_len)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret = 0;
- s32 f_send_aggr_buf = 0;
- s32 f_send_cur_buf = 0;
- s32 f_precopy_cur_buf = 0;
- s32 f_postcopy_cur_buf = 0;
- u32 mport;
-
- if (!card->mpa_tx.enabled ||
- (card->has_control_mask && (port == CTRL_PORT)) ||
- (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) {
- mwifiex_dbg(adapter, WARN,
- "info: %s: tx aggregation disabled\n",
- __func__);
-
- f_send_cur_buf = 1;
- goto tx_curr_single;
- }
-
- if (next_pkt_len) {
- /* More pkt in TX queue */
- mwifiex_dbg(adapter, INFO,
- "info: %s: more packets in queue.\n",
- __func__);
-
- if (MP_TX_AGGR_IN_PROGRESS(card)) {
- if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) {
- f_precopy_cur_buf = 1;
-
- if (!(card->mp_wr_bitmap &
- (1 << card->curr_wr_port)) ||
- !MP_TX_AGGR_BUF_HAS_ROOM(
- card, pkt_len + next_pkt_len))
- f_send_aggr_buf = 1;
- } else {
- /* No room in Aggr buf, send it */
- f_send_aggr_buf = 1;
-
- if (!(card->mp_wr_bitmap &
- (1 << card->curr_wr_port)))
- f_send_cur_buf = 1;
- else
- f_postcopy_cur_buf = 1;
- }
- } else {
- if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) &&
- (card->mp_wr_bitmap & (1 << card->curr_wr_port)))
- f_precopy_cur_buf = 1;
- else
- f_send_cur_buf = 1;
- }
- } else {
- /* Last pkt in TX queue */
- mwifiex_dbg(adapter, INFO,
- "info: %s: Last packet in Tx Queue.\n",
- __func__);
-
- if (MP_TX_AGGR_IN_PROGRESS(card)) {
- /* some packs in Aggr buf already */
- f_send_aggr_buf = 1;
-
- if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len))
- f_precopy_cur_buf = 1;
- else
- /* No room in Aggr buf, send it */
- f_send_cur_buf = 1;
- } else {
- f_send_cur_buf = 1;
- }
- }
-
- if (f_precopy_cur_buf) {
- mwifiex_dbg(adapter, DATA,
- "data: %s: precopy current buffer\n",
- __func__);
- MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
-
- if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) ||
- mp_tx_aggr_port_limit_reached(card))
- /* No more pkts allowed in Aggr buf, send it */
- f_send_aggr_buf = 1;
- }
-
- if (f_send_aggr_buf) {
- mwifiex_dbg(adapter, DATA,
- "data: %s: send aggr buffer: %d %d\n",
- __func__, card->mpa_tx.start_port,
- card->mpa_tx.ports);
- if (card->supports_sdio_new_mode) {
- u32 port_count;
- int i;
-
- for (i = 0, port_count = 0; i < card->max_ports; i++)
- if (card->mpa_tx.ports & BIT(i))
- port_count++;
-
- /* Writing data from "start_port + 0" to "start_port +
- * port_count -1", so decrease the count by 1
- */
- port_count--;
- mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
- (port_count << 8)) + card->mpa_tx.start_port;
- } else {
- mport = (adapter->ioport | SDIO_MPA_ADDR_BASE |
- (card->mpa_tx.ports << 4)) +
- card->mpa_tx.start_port;
- }
-
- ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf,
- card->mpa_tx.buf_len, mport);
-
- MP_TX_AGGR_BUF_RESET(card);
- }
-
-tx_curr_single:
- if (f_send_cur_buf) {
- mwifiex_dbg(adapter, DATA,
- "data: %s: send current buffer %d\n",
- __func__, port);
- ret = mwifiex_write_data_to_card(adapter, payload, pkt_len,
- adapter->ioport + port);
- }
-
- if (f_postcopy_cur_buf) {
- mwifiex_dbg(adapter, DATA,
- "data: %s: postcopy current buffer\n",
- __func__);
- MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port);
- }
-
- return ret;
-}
-
-/*
- * This function downloads data from driver to card.
- *
- * Both commands and data packets are transferred to the card by this
- * function.
- *
- * This function adds the SDIO specific header to the front of the buffer
- * before transferring. The header contains the length of the packet and
- * the type. The firmware handles the packets based upon this set type.
- */
-static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter,
- u8 type, struct sk_buff *skb,
- struct mwifiex_tx_param *tx_param)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret;
- u32 buf_block_len;
- u32 blk_size;
- u32 port = CTRL_PORT;
- u8 *payload = (u8 *)skb->data;
- u32 pkt_len = skb->len;
-
- /* Allocate buffer and copy payload */
- blk_size = MWIFIEX_SDIO_BLOCK_SIZE;
- buf_block_len = (pkt_len + blk_size - 1) / blk_size;
- *(__le16 *)&payload[0] = cpu_to_le16((u16)pkt_len);
- *(__le16 *)&payload[2] = cpu_to_le16(type);
-
- /*
- * This is SDIO specific header
- * u16 length,
- * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1,
- * MWIFIEX_TYPE_EVENT = 3)
- */
- if (type == MWIFIEX_TYPE_DATA) {
- ret = mwifiex_get_wr_port_data(adapter, &port);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "%s: no wr_port available\n",
- __func__);
- return ret;
- }
- } else {
- adapter->cmd_sent = true;
- /* Type must be MWIFIEX_TYPE_CMD */
-
- if (pkt_len <= INTF_HEADER_LEN ||
- pkt_len > MWIFIEX_UPLD_SIZE)
- mwifiex_dbg(adapter, ERROR,
- "%s: payload=%p, nb=%d\n",
- __func__, payload, pkt_len);
-
- if (card->supports_sdio_new_mode)
- port = CMD_PORT_SLCT;
- }
-
- /* Transfer data to card */
- pkt_len = buf_block_len * blk_size;
-
- if (tx_param)
- ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
- port, tx_param->next_pkt_len
- );
- else
- ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len,
- port, 0);
-
- if (ret) {
- if (type == MWIFIEX_TYPE_CMD)
- adapter->cmd_sent = false;
- if (type == MWIFIEX_TYPE_DATA) {
- adapter->data_sent = false;
- /* restore curr_wr_port in error cases */
- card->curr_wr_port = port;
- card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port);
- }
- } else {
- if (type == MWIFIEX_TYPE_DATA) {
- if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port)))
- adapter->data_sent = true;
- else
- adapter->data_sent = false;
- }
- }
-
- return ret;
-}
-
-/*
- * This function allocates the MPA Tx and Rx buffers.
- */
-static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter,
- u32 mpa_tx_buf_size, u32 mpa_rx_buf_size)
-{
- struct sdio_mmc_card *card = adapter->card;
- u32 rx_buf_size;
- int ret = 0;
-
- card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL);
- if (!card->mpa_tx.buf) {
- ret = -1;
- goto error;
- }
-
- card->mpa_tx.buf_size = mpa_tx_buf_size;
-
- rx_buf_size = max_t(u32, mpa_rx_buf_size,
- (u32)SDIO_MAX_AGGR_BUF_SIZE);
- card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL);
- if (!card->mpa_rx.buf) {
- ret = -1;
- goto error;
- }
-
- card->mpa_rx.buf_size = rx_buf_size;
-
-error:
- if (ret) {
- kfree(card->mpa_tx.buf);
- kfree(card->mpa_rx.buf);
- card->mpa_tx.buf_size = 0;
- card->mpa_rx.buf_size = 0;
- }
-
- return ret;
-}
-
-/*
- * This function unregisters the SDIO device.
- *
- * The SDIO IRQ is released, the function is disabled and driver
- * data is set to null.
- */
-static void
-mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
-
- if (adapter->card) {
- sdio_claim_host(card->func);
- sdio_disable_func(card->func);
- sdio_release_host(card->func);
- }
-}
-
-/*
- * This function registers the SDIO device.
- *
- * SDIO IRQ is claimed, block size is set and driver data is initialized.
- */
-static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
-{
- int ret;
- struct sdio_mmc_card *card = adapter->card;
- struct sdio_func *func = card->func;
-
- /* save adapter pointer in card */
- card->adapter = adapter;
- adapter->tx_buf_size = card->tx_buf_size;
-
- sdio_claim_host(func);
-
- /* Set block size */
- ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE);
- sdio_release_host(func);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "cannot set SDIO block size\n");
- return ret;
- }
-
-
- adapter->dev = &func->dev;
-
- strcpy(adapter->fw_name, card->firmware);
- if (card->fw_dump_enh) {
- adapter->mem_type_mapping_tbl = generic_mem_type_map;
- adapter->num_mem_types = 1;
- } else {
- adapter->mem_type_mapping_tbl = mem_type_mapping_tbl;
- adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl);
- }
-
- return 0;
-}
-
-/*
- * This function initializes the SDIO driver.
- *
- * The following initializations steps are followed -
- * - Read the Host interrupt status register to acknowledge
- * the first interrupt got from bootloader
- * - Disable host interrupt mask register
- * - Get SDIO port
- * - Initialize SDIO variables in card
- * - Allocate MP registers
- * - Allocate MPA Tx and Rx buffers
- */
-static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- int ret;
- u8 sdio_ireg;
-
- sdio_set_drvdata(card->func, card);
-
- /*
- * Read the host_int_status_reg for ACK the first interrupt got
- * from the bootloader. If we don't do this we get a interrupt
- * as soon as we register the irq.
- */
- mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg);
-
- /* Get SDIO ioport */
- mwifiex_init_sdio_ioport(adapter);
-
- /* Initialize SDIO variables in card */
- card->mp_rd_bitmap = 0;
- card->mp_wr_bitmap = 0;
- card->curr_rd_port = reg->start_rd_port;
- card->curr_wr_port = reg->start_wr_port;
-
- card->mp_data_port_mask = reg->data_port_mask;
-
- card->mpa_tx.buf_len = 0;
- card->mpa_tx.pkt_cnt = 0;
- card->mpa_tx.start_port = 0;
-
- card->mpa_tx.enabled = 1;
- card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit;
-
- card->mpa_rx.buf_len = 0;
- card->mpa_rx.pkt_cnt = 0;
- card->mpa_rx.start_port = 0;
-
- card->mpa_rx.enabled = 1;
- card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit;
-
- /* Allocate buffers for SDIO MP-A */
- card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL);
- if (!card->mp_regs)
- return -ENOMEM;
-
- /* Allocate skb pointer buffers */
- card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) *
- card->mp_agg_pkt_limit, GFP_KERNEL);
- card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) *
- card->mp_agg_pkt_limit, GFP_KERNEL);
- ret = mwifiex_alloc_sdio_mpa_buffers(adapter,
- card->mp_tx_agg_buf_size,
- card->mp_rx_agg_buf_size);
-
- /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */
- if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX ||
- card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) {
- /* Disable rx single port aggregation */
- adapter->host_disable_sdio_rx_aggr = true;
-
- ret = mwifiex_alloc_sdio_mpa_buffers
- (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K,
- MWIFIEX_MP_AGGR_BUF_SIZE_32K);
- if (ret) {
- /* Disable multi port aggregation */
- card->mpa_tx.enabled = 0;
- card->mpa_rx.enabled = 0;
- }
- }
-
- adapter->auto_tdls = card->can_auto_tdls;
- adapter->ext_scan = card->can_ext_scan;
- return 0;
-}
-
-/*
- * This function resets the MPA Tx and Rx buffers.
- */
-static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
-
- MP_TX_AGGR_BUF_RESET(card);
- MP_RX_AGGR_BUF_RESET(card);
-}
-
-/*
- * This function cleans up the allocated card buffers.
- *
- * The following are freed by this function -
- * - MP registers
- * - MPA Tx buffer
- * - MPA Rx buffer
- */
-static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
-
- kfree(card->mp_regs);
- kfree(card->mpa_rx.skb_arr);
- kfree(card->mpa_rx.len_arr);
- kfree(card->mpa_tx.buf);
- kfree(card->mpa_rx.buf);
- sdio_set_drvdata(card->func, NULL);
- kfree(card);
-}
-
-/*
- * This function updates the MP end port in card.
- */
-static void
-mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port)
-{
- struct sdio_mmc_card *card = adapter->card;
- const struct mwifiex_sdio_card_reg *reg = card->reg;
- int i;
-
- card->mp_end_port = port;
-
- card->mp_data_port_mask = reg->data_port_mask;
-
- if (reg->start_wr_port) {
- for (i = 1; i <= card->max_ports - card->mp_end_port; i++)
- card->mp_data_port_mask &=
- ~(1 << (card->max_ports - i));
- }
-
- card->curr_wr_port = reg->start_wr_port;
-
- mwifiex_dbg(adapter, CMD,
- "cmd: mp_end_port %d, data port mask 0x%x\n",
- port, card->mp_data_port_mask);
-}
-
-static void mwifiex_recreate_adapter(struct sdio_mmc_card *card)
-{
- struct sdio_func *func = card->func;
- const struct sdio_device_id *device_id = card->device_id;
-
- /* TODO mmc_hw_reset does not require destroying and re-probing the
- * whole adapter. Hence there was no need to for this rube-goldberg
- * design to reload the fw from an external workqueue. If we don't
- * destroy the adapter we could reload the fw from
- * mwifiex_main_work_queue directly.
- * The real difficulty with fw reset is to restore all the user
- * settings applied through ioctl. By destroying and recreating the
- * adapter, we take the easy way out, since we rely on user space to
- * restore them. We assume that user space will treat the new
- * incarnation of the adapter(interfaces) as if they had been just
- * discovered and initializes them from scratch.
- */
-
- mwifiex_sdio_remove(func);
-
- /* power cycle the adapter */
- sdio_claim_host(func);
- mmc_hw_reset(func->card->host);
- sdio_release_host(func);
-
- mwifiex_sdio_probe(func, device_id);
-}
-
-static struct mwifiex_adapter *save_adapter;
-static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
-
- /* TODO card pointer is unprotected. If the adapter is removed
- * physically, sdio core might trigger mwifiex_sdio_remove, before this
- * workqueue is run, which will destroy the adapter struct. When this
- * workqueue eventually exceutes it will dereference an invalid adapter
- * pointer
- */
- mwifiex_recreate_adapter(card);
-}
-
-/* This function read/write firmware */
-static enum
-rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter,
- u8 doneflag)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret, tries;
- u8 ctrl_data = 0;
-
- sdio_writeb(card->func, card->reg->fw_dump_host_ready,
- card->reg->fw_dump_ctrl, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n");
- return RDWR_STATUS_FAILURE;
- }
- for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
- ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl,
- &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
- return RDWR_STATUS_FAILURE;
- }
- if (ctrl_data == FW_DUMP_DONE)
- break;
- if (doneflag && ctrl_data == doneflag)
- return RDWR_STATUS_DONE;
- if (ctrl_data != card->reg->fw_dump_host_ready) {
- mwifiex_dbg(adapter, WARN,
- "The ctrl reg was changed, re-try again\n");
- sdio_writeb(card->func, card->reg->fw_dump_host_ready,
- card->reg->fw_dump_ctrl, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
- return RDWR_STATUS_FAILURE;
- }
- }
- usleep_range(100, 200);
- }
- if (ctrl_data == card->reg->fw_dump_host_ready) {
- mwifiex_dbg(adapter, ERROR,
- "Fail to pull ctrl_data\n");
- return RDWR_STATUS_FAILURE;
- }
-
- return RDWR_STATUS_SUCCESS;
-}
-
-/* This function dump firmware memory to file */
-static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- int ret = 0;
- unsigned int reg, reg_start, reg_end;
- u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0;
- enum rdwr_status stat;
- u32 memory_size;
-
- if (!card->can_dump_fw)
- return;
-
- for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) {
- struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
-
- if (entry->mem_ptr) {
- vfree(entry->mem_ptr);
- entry->mem_ptr = NULL;
- }
- entry->mem_size = 0;
- }
-
- mwifiex_pm_wakeup_card(adapter);
- sdio_claim_host(card->func);
-
- mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
-
- stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
- if (stat == RDWR_STATUS_FAILURE)
- goto done;
-
- reg = card->reg->fw_dump_start;
- /* Read the number of the memories which will dump */
- dump_num = sdio_readb(card->func, reg, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n");
- goto done;
- }
-
- /* Read the length of every memory which will dump */
- for (idx = 0; idx < dump_num; idx++) {
- struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx];
-
- stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
- if (stat == RDWR_STATUS_FAILURE)
- goto done;
-
- memory_size = 0;
- reg = card->reg->fw_dump_start;
- for (i = 0; i < 4; i++) {
- read_reg = sdio_readb(card->func, reg, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO read err\n");
- goto done;
- }
- memory_size |= (read_reg << i*8);
- reg++;
- }
-
- if (memory_size == 0) {
- mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n");
- ret = mwifiex_write_reg(adapter,
- card->reg->fw_dump_ctrl,
- FW_DUMP_READ_DONE);
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "SDIO write err\n");
- return;
- }
- break;
- }
-
- mwifiex_dbg(adapter, DUMP,
- "%s_SIZE=0x%x\n", entry->mem_name, memory_size);
- entry->mem_ptr = vmalloc(memory_size + 1);
- entry->mem_size = memory_size;
- if (!entry->mem_ptr) {
- mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n",
- entry->mem_name);
- goto done;
- }
- dbg_ptr = entry->mem_ptr;
- end_ptr = dbg_ptr + memory_size;
-
- doneflag = entry->done_flag;
- mwifiex_dbg(adapter, DUMP,
- "Start %s output, please wait...\n",
- entry->mem_name);
-
- do {
- stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag);
- if (stat == RDWR_STATUS_FAILURE)
- goto done;
-
- reg_start = card->reg->fw_dump_start;
- reg_end = card->reg->fw_dump_end;
- for (reg = reg_start; reg <= reg_end; reg++) {
- *dbg_ptr = sdio_readb(card->func, reg, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "SDIO read err\n");
- goto done;
- }
- if (dbg_ptr < end_ptr)
- dbg_ptr++;
- else
- mwifiex_dbg(adapter, ERROR,
- "Allocated buf not enough\n");
- }
-
- if (stat != RDWR_STATUS_DONE)
- continue;
-
- mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n",
- entry->mem_name, dbg_ptr - entry->mem_ptr);
- break;
- } while (1);
- }
- mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
-
-done:
- sdio_release_host(card->func);
-}
-
-static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
- struct memory_type_mapping *entry = &generic_mem_type_map[0];
- unsigned int reg, reg_start, reg_end;
- u8 start_flag = 0, done_flag = 0;
- u8 *dbg_ptr, *end_ptr;
- enum rdwr_status stat;
- int ret = -1, tries;
-
- if (!card->fw_dump_enh)
- return;
-
- if (entry->mem_ptr) {
- vfree(entry->mem_ptr);
- entry->mem_ptr = NULL;
- }
- entry->mem_size = 0;
-
- mwifiex_pm_wakeup_card(adapter);
- sdio_claim_host(card->func);
-
- mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n");
-
- stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
- if (stat == RDWR_STATUS_FAILURE)
- goto done;
-
- reg_start = card->reg->fw_dump_start;
- reg_end = card->reg->fw_dump_end;
- for (reg = reg_start; reg <= reg_end; reg++) {
- for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
- start_flag = sdio_readb(card->func, reg, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "SDIO read err\n");
- goto done;
- }
- if (start_flag == 0)
- break;
- if (tries == MAX_POLL_TRIES) {
- mwifiex_dbg(adapter, ERROR,
- "FW not ready to dump\n");
- ret = -1;
- goto done;
- }
- }
- usleep_range(100, 200);
- }
-
- entry->mem_ptr = vmalloc(0xf0000 + 1);
- if (!entry->mem_ptr) {
- ret = -1;
- goto done;
- }
- dbg_ptr = entry->mem_ptr;
- entry->mem_size = 0xf0000;
- end_ptr = dbg_ptr + entry->mem_size;
-
- done_flag = entry->done_flag;
- mwifiex_dbg(adapter, DUMP,
- "Start %s output, please wait...\n", entry->mem_name);
-
- while (true) {
- stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag);
- if (stat == RDWR_STATUS_FAILURE)
- goto done;
- for (reg = reg_start; reg <= reg_end; reg++) {
- *dbg_ptr = sdio_readb(card->func, reg, &ret);
- if (ret) {
- mwifiex_dbg(adapter, ERROR,
- "SDIO read err\n");
- goto done;
- }
- dbg_ptr++;
- if (dbg_ptr >= end_ptr) {
- u8 *tmp_ptr;
-
- tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1);
- if (!tmp_ptr)
- goto done;
-
- memcpy(tmp_ptr, entry->mem_ptr,
- entry->mem_size);
- vfree(entry->mem_ptr);
- entry->mem_ptr = tmp_ptr;
- tmp_ptr = NULL;
- dbg_ptr = entry->mem_ptr + entry->mem_size;
- entry->mem_size += 0x4000;
- end_ptr = entry->mem_ptr + entry->mem_size;
- }
- }
- if (stat == RDWR_STATUS_DONE) {
- entry->mem_size = dbg_ptr - entry->mem_ptr;
- mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n",
- entry->mem_name, entry->mem_size);
- ret = 0;
- break;
- }
- }
- mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n");
-
-done:
- if (ret) {
- mwifiex_dbg(adapter, ERROR, "firmware dump failed\n");
- if (entry->mem_ptr) {
- vfree(entry->mem_ptr);
- entry->mem_ptr = NULL;
- }
- entry->mem_size = 0;
- }
- sdio_release_host(card->func);
-}
-
-static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter)
-{
- struct sdio_mmc_card *card = adapter->card;
-
- mwifiex_drv_info_dump(adapter);
- if (card->fw_dump_enh)
- mwifiex_sdio_generic_fw_dump(adapter);
- else
- mwifiex_sdio_fw_dump(adapter);
- mwifiex_upload_device_dump(adapter);
-}
-
-static void mwifiex_sdio_work(struct work_struct *work)
-{
- if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP,
- &iface_work_flags))
- mwifiex_sdio_device_dump_work(save_adapter);
- if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET,
- &iface_work_flags))
- mwifiex_sdio_card_reset_work(save_adapter);
-}
-
-static DECLARE_WORK(sdio_work, mwifiex_sdio_work);
-/* This function resets the card */
-static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter)
-{
- save_adapter = adapter;
- if (test_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags))
- return;
-
- set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &iface_work_flags);
-
- schedule_work(&sdio_work);
-}
-
-/* This function dumps FW information */
-static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter)
-{
- save_adapter = adapter;
- if (test_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &iface_work_flags))
- return;
-
- set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &iface_work_flags);
- schedule_work(&sdio_work);
-}
-
-/* Function to dump SDIO function registers and SDIO scratch registers in case
- * of FW crash
- */
-static int
-mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf)
-{
- char *p = drv_buf;
- struct sdio_mmc_card *cardp = adapter->card;
- int ret = 0;
- u8 count, func, data, index = 0, size = 0;
- u8 reg, reg_start, reg_end;
- char buf[256], *ptr;
-
- if (!p)
- return 0;
-
- mwifiex_dbg(adapter, MSG, "SDIO register dump start\n");
-
- mwifiex_pm_wakeup_card(adapter);
-
- sdio_claim_host(cardp->func);
-
- for (count = 0; count < 5; count++) {
- memset(buf, 0, sizeof(buf));
- ptr = buf;
-
- switch (count) {
- case 0:
- /* Read the registers of SDIO function0 */
- func = count;
- reg_start = 0;
- reg_end = 9;
- break;
- case 1:
- /* Read the registers of SDIO function1 */
- func = count;
- reg_start = cardp->reg->func1_dump_reg_start;
- reg_end = cardp->reg->func1_dump_reg_end;
- break;
- case 2:
- index = 0;
- func = 1;
- reg_start = cardp->reg->func1_spec_reg_table[index++];
- size = cardp->reg->func1_spec_reg_num;
- reg_end = cardp->reg->func1_spec_reg_table[size-1];
- break;
- default:
- /* Read the scratch registers of SDIO function1 */
- if (count == 4)
- mdelay(100);
- func = 1;
- reg_start = cardp->reg->func1_scratch_reg;
- reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE;
- }
-
- if (count != 2)
- ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ",
- func, reg_start, reg_end);
- else
- ptr += sprintf(ptr, "SDIO Func%d: ", func);
-
- for (reg = reg_start; reg <= reg_end;) {
- if (func == 0)
- data = sdio_f0_readb(cardp->func, reg, &ret);
- else
- data = sdio_readb(cardp->func, reg, &ret);
-
- if (count == 2)
- ptr += sprintf(ptr, "(%#x) ", reg);
- if (!ret) {
- ptr += sprintf(ptr, "%02x ", data);
- } else {
- ptr += sprintf(ptr, "ERR");
- break;
- }
-
- if (count == 2 && reg < reg_end)
- reg = cardp->reg->func1_spec_reg_table[index++];
- else
- reg++;
- }
-
- mwifiex_dbg(adapter, MSG, "%s\n", buf);
- p += sprintf(p, "%s\n", buf);
- }
-
- sdio_release_host(cardp->func);
-
- mwifiex_dbg(adapter, MSG, "SDIO register dump end\n");
-
- return p - drv_buf;
-}
-
-static struct mwifiex_if_ops sdio_ops = {
- .init_if = mwifiex_init_sdio,
- .cleanup_if = mwifiex_cleanup_sdio,
- .check_fw_status = mwifiex_check_fw_status,
- .prog_fw = mwifiex_prog_fw_w_helper,
- .register_dev = mwifiex_register_dev,
- .unregister_dev = mwifiex_unregister_dev,
- .enable_int = mwifiex_sdio_enable_host_int,
- .disable_int = mwifiex_sdio_disable_host_int,
- .process_int_status = mwifiex_process_int_status,
- .host_to_card = mwifiex_sdio_host_to_card,
- .wakeup = mwifiex_pm_wakeup_card,
- .wakeup_complete = mwifiex_pm_wakeup_card_complete,
-
- /* SDIO specific */
- .update_mp_end_port = mwifiex_update_mp_end_port,
- .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf,
- .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete,
- .event_complete = mwifiex_sdio_event_complete,
- .card_reset = mwifiex_sdio_card_reset,
- .reg_dump = mwifiex_sdio_reg_dump,
- .device_dump = mwifiex_sdio_device_dump,
- .deaggr_pkt = mwifiex_deaggr_sdio_pkt,
-};
-
-/*
- * This function initializes the SDIO driver.
- *
- * This initiates the semaphore and registers the device with
- * SDIO bus.
- */
-static int
-mwifiex_sdio_init_module(void)
-{
- sema_init(&add_remove_card_sem, 1);
-
- /* Clear the flag in case user removes the card. */
- user_rmmod = 0;
-
- return sdio_register_driver(&mwifiex_sdio);
-}
-
-/*
- * This function cleans up the SDIO driver.
- *
- * The following major steps are followed for cleanup -
- * - Resume the device if its suspended
- * - Disconnect the device if connected
- * - Shutdown the firmware
- * - Unregister the device from SDIO bus.
- */
-static void
-mwifiex_sdio_cleanup_module(void)
-{
- if (!down_interruptible(&add_remove_card_sem))
- up(&add_remove_card_sem);
-
- /* Set the flag as user is removing this module. */
- user_rmmod = 1;
- cancel_work_sync(&sdio_work);
-
- sdio_unregister_driver(&mwifiex_sdio);
-}
-
-module_init(mwifiex_sdio_init_module);
-module_exit(mwifiex_sdio_cleanup_module);
-
-MODULE_AUTHOR("Marvell International Ltd.");
-MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION);
-MODULE_VERSION(SDIO_VERSION);
-MODULE_LICENSE("GPL v2");
-MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME);
-MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME);
-MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME);
-MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME);
-MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME);
-MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME);
OpenPOWER on IntegriCloud