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path: root/drivers/net/wireless/rt2x00/rt2800pci.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800pci.c1322
1 files changed, 1322 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
new file mode 100644
index 0000000..dfc886f
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -0,0 +1,1322 @@
+/*
+ Copyright (C) 2009 Ivo van Doorn <IvDoorn@gmail.com>
+ Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
+ Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
+ Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
+ Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
+ Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
+ Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
+ Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
+ <http://rt2x00.serialmonkey.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
+ 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.
+ */
+
+/*
+ Module: rt2800pci
+ Abstract: rt2800pci device specific routines.
+ Supported chipsets: RT2800E & RT2800ED.
+ */
+
+#include <linux/crc-ccitt.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/eeprom_93cx6.h>
+
+#include "rt2x00.h"
+#include "rt2x00pci.h"
+#include "rt2x00soc.h"
+#include "rt2800lib.h"
+#include "rt2800.h"
+#include "rt2800pci.h"
+
+#ifdef CONFIG_RT2800PCI_PCI_MODULE
+#define CONFIG_RT2800PCI_PCI
+#endif
+
+#ifdef CONFIG_RT2800PCI_WISOC_MODULE
+#define CONFIG_RT2800PCI_WISOC
+#endif
+
+/*
+ * Allow hardware encryption to be disabled.
+ */
+static int modparam_nohwcrypt = 1;
+module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
+MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
+
+static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
+{
+ unsigned int i;
+ u32 reg;
+
+ for (i = 0; i < 200; i++) {
+ rt2800_register_read(rt2x00dev, H2M_MAILBOX_CID, &reg);
+
+ if ((rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD0) == token) ||
+ (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD1) == token) ||
+ (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD2) == token) ||
+ (rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD3) == token))
+ break;
+
+ udelay(REGISTER_BUSY_DELAY);
+ }
+
+ if (i == 200)
+ ERROR(rt2x00dev, "MCU request failed, no response from hardware\n");
+
+ rt2800_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
+ rt2800_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
+}
+
+#ifdef CONFIG_RT2800PCI_WISOC
+static void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
+{
+ u32 *base_addr = (u32 *) KSEG1ADDR(0x1F040000); /* XXX for RT3052 */
+
+ memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
+}
+#else
+static inline void rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2800PCI_WISOC */
+
+#ifdef CONFIG_RT2800PCI_PCI
+static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
+{
+ struct rt2x00_dev *rt2x00dev = eeprom->data;
+ u32 reg;
+
+ rt2800_register_read(rt2x00dev, E2PROM_CSR, &reg);
+
+ eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN);
+ eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT);
+ eeprom->reg_data_clock =
+ !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK);
+ eeprom->reg_chip_select =
+ !!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT);
+}
+
+static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
+{
+ struct rt2x00_dev *rt2x00dev = eeprom->data;
+ u32 reg = 0;
+
+ rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in);
+ rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out);
+ rt2x00_set_field32(&reg, E2PROM_CSR_DATA_CLOCK,
+ !!eeprom->reg_data_clock);
+ rt2x00_set_field32(&reg, E2PROM_CSR_CHIP_SELECT,
+ !!eeprom->reg_chip_select);
+
+ rt2800_register_write(rt2x00dev, E2PROM_CSR, reg);
+}
+
+static void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
+{
+ struct eeprom_93cx6 eeprom;
+ u32 reg;
+
+ rt2800_register_read(rt2x00dev, E2PROM_CSR, &reg);
+
+ eeprom.data = rt2x00dev;
+ eeprom.register_read = rt2800pci_eepromregister_read;
+ eeprom.register_write = rt2800pci_eepromregister_write;
+ eeprom.width = !rt2x00_get_field32(reg, E2PROM_CSR_TYPE) ?
+ PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
+ eeprom.reg_data_in = 0;
+ eeprom.reg_data_out = 0;
+ eeprom.reg_data_clock = 0;
+ eeprom.reg_chip_select = 0;
+
+ eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
+ EEPROM_SIZE / sizeof(u16));
+}
+
+static int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
+{
+ return rt2800_efuse_detect(rt2x00dev);
+}
+
+static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
+{
+ rt2800_read_eeprom_efuse(rt2x00dev);
+}
+#else
+static inline void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
+{
+}
+
+static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
+{
+ return 0;
+}
+
+static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
+{
+}
+#endif /* CONFIG_RT2800PCI_PCI */
+
+/*
+ * Firmware functions
+ */
+static char *rt2800pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
+{
+ return FIRMWARE_RT2860;
+}
+
+static int rt2800pci_check_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
+{
+ u16 fw_crc;
+ u16 crc;
+
+ /*
+ * Only support 8kb firmware files.
+ */
+ if (len != 8192)
+ return FW_BAD_LENGTH;
+
+ /*
+ * The last 2 bytes in the firmware array are the crc checksum itself,
+ * this means that we should never pass those 2 bytes to the crc
+ * algorithm.
+ */
+ fw_crc = (data[len - 2] << 8 | data[len - 1]);
+
+ /*
+ * Use the crc ccitt algorithm.
+ * This will return the same value as the legacy driver which
+ * used bit ordering reversion on the both the firmware bytes
+ * before input input as well as on the final output.
+ * Obviously using crc ccitt directly is much more efficient.
+ */
+ crc = crc_ccitt(~0, data, len - 2);
+
+ /*
+ * There is a small difference between the crc-itu-t + bitrev and
+ * the crc-ccitt crc calculation. In the latter method the 2 bytes
+ * will be swapped, use swab16 to convert the crc to the correct
+ * value.
+ */
+ crc = swab16(crc);
+
+ return (fw_crc == crc) ? FW_OK : FW_BAD_CRC;
+}
+
+static int rt2800pci_load_firmware(struct rt2x00_dev *rt2x00dev,
+ const u8 *data, const size_t len)
+{
+ unsigned int i;
+ u32 reg;
+
+ /*
+ * Wait for stable hardware.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
+ if (reg && reg != ~0)
+ break;
+ msleep(1);
+ }
+
+ if (i == REGISTER_BUSY_COUNT) {
+ ERROR(rt2x00dev, "Unstable hardware.\n");
+ return -EBUSY;
+ }
+
+ rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002);
+ rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000);
+
+ /*
+ * Disable DMA, will be reenabled later when enabling
+ * the radio.
+ */
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
+
+ /*
+ * enable Host program ram write selection
+ */
+ reg = 0;
+ rt2x00_set_field32(&reg, PBF_SYS_CTRL_HOST_RAM_WRITE, 1);
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg);
+
+ /*
+ * Write firmware to device.
+ */
+ rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
+ data, len);
+
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000);
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001);
+
+ /*
+ * Wait for device to stabilize.
+ */
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
+ if (rt2x00_get_field32(reg, PBF_SYS_CTRL_READY))
+ break;
+ msleep(1);
+ }
+
+ if (i == REGISTER_BUSY_COUNT) {
+ ERROR(rt2x00dev, "PBF system register not ready.\n");
+ return -EBUSY;
+ }
+
+ /*
+ * Disable interrupts
+ */
+ rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_RADIO_IRQ_OFF);
+
+ /*
+ * Initialize BBP R/W access agent
+ */
+ rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
+ rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
+
+ return 0;
+}
+
+/*
+ * Initialization functions.
+ */
+static bool rt2800pci_get_entry_state(struct queue_entry *entry)
+{
+ struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+ u32 word;
+
+ if (entry->queue->qid == QID_RX) {
+ rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+ return (!rt2x00_get_field32(word, RXD_W1_DMA_DONE));
+ } else {
+ rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+ return (!rt2x00_get_field32(word, TXD_W1_DMA_DONE));
+ }
+}
+
+static void rt2800pci_clear_entry(struct queue_entry *entry)
+{
+ struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ u32 word;
+
+ if (entry->queue->qid == QID_RX) {
+ rt2x00_desc_read(entry_priv->desc, 0, &word);
+ rt2x00_set_field32(&word, RXD_W0_SDP0, skbdesc->skb_dma);
+ rt2x00_desc_write(entry_priv->desc, 0, word);
+
+ rt2x00_desc_read(entry_priv->desc, 1, &word);
+ rt2x00_set_field32(&word, RXD_W1_DMA_DONE, 0);
+ rt2x00_desc_write(entry_priv->desc, 1, word);
+ } else {
+ rt2x00_desc_read(entry_priv->desc, 1, &word);
+ rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 1);
+ rt2x00_desc_write(entry_priv->desc, 1, word);
+ }
+}
+
+static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
+{
+ struct queue_entry_priv_pci *entry_priv;
+ u32 reg;
+
+ rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX4, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX5, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DRX_IDX0, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
+
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
+
+ /*
+ * Initialize registers.
+ */
+ entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
+ rt2800_register_write(rt2x00dev, TX_BASE_PTR0, entry_priv->desc_dma);
+ rt2800_register_write(rt2x00dev, TX_MAX_CNT0, rt2x00dev->tx[0].limit);
+ rt2800_register_write(rt2x00dev, TX_CTX_IDX0, 0);
+ rt2800_register_write(rt2x00dev, TX_DTX_IDX0, 0);
+
+ entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
+ rt2800_register_write(rt2x00dev, TX_BASE_PTR1, entry_priv->desc_dma);
+ rt2800_register_write(rt2x00dev, TX_MAX_CNT1, rt2x00dev->tx[1].limit);
+ rt2800_register_write(rt2x00dev, TX_CTX_IDX1, 0);
+ rt2800_register_write(rt2x00dev, TX_DTX_IDX1, 0);
+
+ entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
+ rt2800_register_write(rt2x00dev, TX_BASE_PTR2, entry_priv->desc_dma);
+ rt2800_register_write(rt2x00dev, TX_MAX_CNT2, rt2x00dev->tx[2].limit);
+ rt2800_register_write(rt2x00dev, TX_CTX_IDX2, 0);
+ rt2800_register_write(rt2x00dev, TX_DTX_IDX2, 0);
+
+ entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
+ rt2800_register_write(rt2x00dev, TX_BASE_PTR3, entry_priv->desc_dma);
+ rt2800_register_write(rt2x00dev, TX_MAX_CNT3, rt2x00dev->tx[3].limit);
+ rt2800_register_write(rt2x00dev, TX_CTX_IDX3, 0);
+ rt2800_register_write(rt2x00dev, TX_DTX_IDX3, 0);
+
+ entry_priv = rt2x00dev->rx->entries[0].priv_data;
+ rt2800_register_write(rt2x00dev, RX_BASE_PTR, entry_priv->desc_dma);
+ rt2800_register_write(rt2x00dev, RX_MAX_CNT, rt2x00dev->rx[0].limit);
+ rt2800_register_write(rt2x00dev, RX_CRX_IDX, rt2x00dev->rx[0].limit - 1);
+ rt2800_register_write(rt2x00dev, RX_DRX_IDX, 0);
+
+ /*
+ * Enable global DMA configuration
+ */
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
+
+ rt2800_register_write(rt2x00dev, DELAY_INT_CFG, 0);
+
+ return 0;
+}
+
+/*
+ * Device state switch handlers.
+ */
+static void rt2800pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
+ enum dev_state state)
+{
+ u32 reg;
+
+ rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX,
+ (state == STATE_RADIO_RX_ON) ||
+ (state == STATE_RADIO_RX_ON_LINK));
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+}
+
+static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
+ enum dev_state state)
+{
+ int mask = (state == STATE_RADIO_IRQ_ON);
+ u32 reg;
+
+ /*
+ * When interrupts are being enabled, the interrupt registers
+ * should clear the register to assure a clean state.
+ */
+ if (state == STATE_RADIO_IRQ_ON) {
+ rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+ rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+ }
+
+ rt2800_register_read(rt2x00dev, INT_MASK_CSR, &reg);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_RXDELAYINT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_TXDELAYINT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_RX_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_AC0_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_AC1_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_AC2_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_AC3_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_HCCA_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_MGMT_DMA_DONE, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_MCU_COMMAND, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_RXTX_COHERENT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_TBTT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_PRE_TBTT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_TX_FIFO_STATUS, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_AUTO_WAKEUP, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_GPTIMER, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_RX_COHERENT, mask);
+ rt2x00_set_field32(&reg, INT_MASK_CSR_TX_COHERENT, mask);
+ rt2800_register_write(rt2x00dev, INT_MASK_CSR, reg);
+}
+
+static int rt2800pci_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
+{
+ unsigned int i;
+ u32 reg;
+
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&
+ !rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))
+ return 0;
+
+ msleep(1);
+ }
+
+ ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");
+ return -EACCES;
+}
+
+static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+ u32 reg;
+ u16 word;
+
+ /*
+ * Initialize all registers.
+ */
+ if (unlikely(rt2800pci_wait_wpdma_ready(rt2x00dev) ||
+ rt2800pci_init_queues(rt2x00dev) ||
+ rt2800_init_registers(rt2x00dev) ||
+ rt2800pci_wait_wpdma_ready(rt2x00dev) ||
+ rt2800_init_bbp(rt2x00dev) ||
+ rt2800_init_rfcsr(rt2x00dev)))
+ return -EIO;
+
+ /*
+ * Send signal to firmware during boot time.
+ */
+ rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0xff, 0, 0);
+
+ /*
+ * Enable RX.
+ */
+ rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_TX, 1);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 1);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 1);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_WP_DMA_BURST_SIZE, 2);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
+
+ rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_TX, 1);
+ rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+
+ /*
+ * Initialize LED control
+ */
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_LED1, &word);
+ rt2800_mcu_request(rt2x00dev, MCU_LED_1, 0xff,
+ word & 0xff, (word >> 8) & 0xff);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_LED2, &word);
+ rt2800_mcu_request(rt2x00dev, MCU_LED_2, 0xff,
+ word & 0xff, (word >> 8) & 0xff);
+
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_LED3, &word);
+ rt2800_mcu_request(rt2x00dev, MCU_LED_3, 0xff,
+ word & 0xff, (word >> 8) & 0xff);
+
+ return 0;
+}
+
+static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+ u32 reg;
+
+ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
+ rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
+
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0);
+ rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0);
+ rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0);
+
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001280);
+
+ rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX4, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX5, 1);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DRX_IDX0, 1);
+ rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
+
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
+ rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
+
+ /* Wait for DMA, ignore error */
+ rt2800pci_wait_wpdma_ready(rt2x00dev);
+}
+
+static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
+ enum dev_state state)
+{
+ /*
+ * Always put the device to sleep (even when we intend to wakeup!)
+ * if the device is booting and wasn't asleep it will return
+ * failure when attempting to wakeup.
+ */
+ rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 2);
+
+ if (state == STATE_AWAKE) {
+ rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKUP, 0, 0);
+ rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKUP);
+ }
+
+ return 0;
+}
+
+static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
+ enum dev_state state)
+{
+ int retval = 0;
+
+ switch (state) {
+ case STATE_RADIO_ON:
+ /*
+ * Before the radio can be enabled, the device first has
+ * to be woken up. After that it needs a bit of time
+ * to be fully awake and then the radio can be enabled.
+ */
+ rt2800pci_set_state(rt2x00dev, STATE_AWAKE);
+ msleep(1);
+ retval = rt2800pci_enable_radio(rt2x00dev);
+ break;
+ case STATE_RADIO_OFF:
+ /*
+ * After the radio has been disabled, the device should
+ * be put to sleep for powersaving.
+ */
+ rt2800pci_disable_radio(rt2x00dev);
+ rt2800pci_set_state(rt2x00dev, STATE_SLEEP);
+ break;
+ case STATE_RADIO_RX_ON:
+ case STATE_RADIO_RX_ON_LINK:
+ case STATE_RADIO_RX_OFF:
+ case STATE_RADIO_RX_OFF_LINK:
+ rt2800pci_toggle_rx(rt2x00dev, state);
+ break;
+ case STATE_RADIO_IRQ_ON:
+ case STATE_RADIO_IRQ_OFF:
+ rt2800pci_toggle_irq(rt2x00dev, state);
+ break;
+ case STATE_DEEP_SLEEP:
+ case STATE_SLEEP:
+ case STATE_STANDBY:
+ case STATE_AWAKE:
+ retval = rt2800pci_set_state(rt2x00dev, state);
+ break;
+ default:
+ retval = -ENOTSUPP;
+ break;
+ }
+
+ if (unlikely(retval))
+ ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
+ state, retval);
+
+ return retval;
+}
+
+/*
+ * TX descriptor initialization
+ */
+static void rt2800pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
+ struct sk_buff *skb,
+ struct txentry_desc *txdesc)
+{
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
+ __le32 *txd = skbdesc->desc;
+ __le32 *txwi = (__le32 *)(skb->data - rt2x00dev->ops->extra_tx_headroom);
+ u32 word;
+
+ /*
+ * Initialize TX Info descriptor
+ */
+ rt2x00_desc_read(txwi, 0, &word);
+ rt2x00_set_field32(&word, TXWI_W0_FRAG,
+ test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W0_MIMO_PS, 0);
+ rt2x00_set_field32(&word, TXWI_W0_CF_ACK, 0);
+ rt2x00_set_field32(&word, TXWI_W0_TS,
+ test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W0_AMPDU,
+ test_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W0_MPDU_DENSITY, txdesc->mpdu_density);
+ rt2x00_set_field32(&word, TXWI_W0_TX_OP, txdesc->ifs);
+ rt2x00_set_field32(&word, TXWI_W0_MCS, txdesc->mcs);
+ rt2x00_set_field32(&word, TXWI_W0_BW,
+ test_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W0_SHORT_GI,
+ test_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W0_STBC, txdesc->stbc);
+ rt2x00_set_field32(&word, TXWI_W0_PHYMODE, txdesc->rate_mode);
+ rt2x00_desc_write(txwi, 0, word);
+
+ rt2x00_desc_read(txwi, 1, &word);
+ rt2x00_set_field32(&word, TXWI_W1_ACK,
+ test_bit(ENTRY_TXD_ACK, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W1_NSEQ,
+ test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags));
+ rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->ba_size);
+ rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID,
+ test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ?
+ txdesc->key_idx : 0xff);
+ rt2x00_set_field32(&word, TXWI_W1_MPDU_TOTAL_BYTE_COUNT,
+ skb->len - txdesc->l2pad);
+ rt2x00_set_field32(&word, TXWI_W1_PACKETID,
+ skbdesc->entry->queue->qid + 1);
+ rt2x00_desc_write(txwi, 1, word);
+
+ /*
+ * Always write 0 to IV/EIV fields, hardware will insert the IV
+ * from the IVEIV register when TXD_W3_WIV is set to 0.
+ * When TXD_W3_WIV is set to 1 it will use the IV data
+ * from the descriptor. The TXWI_W1_WIRELESS_CLI_ID indicates which
+ * crypto entry in the registers should be used to encrypt the frame.
+ */
+ _rt2x00_desc_write(txwi, 2, 0 /* skbdesc->iv[0] */);
+ _rt2x00_desc_write(txwi, 3, 0 /* skbdesc->iv[1] */);
+
+ /*
+ * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1
+ * must contains a TXWI structure + 802.11 header + padding + 802.11
+ * data. We choose to have SD_PTR0/SD_LEN0 only contains TXWI and
+ * SD_PTR1/SD_LEN1 contains 802.11 header + padding + 802.11
+ * data. It means that LAST_SEC0 is always 0.
+ */
+
+ /*
+ * Initialize TX descriptor
+ */
+ rt2x00_desc_read(txd, 0, &word);
+ rt2x00_set_field32(&word, TXD_W0_SD_PTR0, skbdesc->skb_dma);
+ rt2x00_desc_write(txd, 0, word);
+
+ rt2x00_desc_read(txd, 1, &word);
+ rt2x00_set_field32(&word, TXD_W1_SD_LEN1, skb->len);
+ rt2x00_set_field32(&word, TXD_W1_LAST_SEC1,
+ !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
+ rt2x00_set_field32(&word, TXD_W1_BURST,
+ test_bit(ENTRY_TXD_BURST, &txdesc->flags));
+ rt2x00_set_field32(&word, TXD_W1_SD_LEN0,
+ rt2x00dev->ops->extra_tx_headroom);
+ rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0);
+ rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0);
+ rt2x00_desc_write(txd, 1, word);
+
+ rt2x00_desc_read(txd, 2, &word);
+ rt2x00_set_field32(&word, TXD_W2_SD_PTR1,
+ skbdesc->skb_dma + rt2x00dev->ops->extra_tx_headroom);
+ rt2x00_desc_write(txd, 2, word);
+
+ rt2x00_desc_read(txd, 3, &word);
+ rt2x00_set_field32(&word, TXD_W3_WIV,
+ !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
+ rt2x00_set_field32(&word, TXD_W3_QSEL, 2);
+ rt2x00_desc_write(txd, 3, word);
+}
+
+/*
+ * TX data initialization
+ */
+static void rt2800pci_write_beacon(struct queue_entry *entry)
+{
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ unsigned int beacon_base;
+ u32 reg;
+
+ /*
+ * Disable beaconing while we are reloading the beacon data,
+ * otherwise we might be sending out invalid data.
+ */
+ rt2800_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+ rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
+ rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+
+ /*
+ * Write entire beacon with descriptor to register.
+ */
+ beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
+ rt2800_register_multiwrite(rt2x00dev,
+ beacon_base,
+ skbdesc->desc, skbdesc->desc_len);
+ rt2800_register_multiwrite(rt2x00dev,
+ beacon_base + skbdesc->desc_len,
+ entry->skb->data, entry->skb->len);
+
+ /*
+ * Clean up beacon skb.
+ */
+ dev_kfree_skb_any(entry->skb);
+ entry->skb = NULL;
+}
+
+static void rt2800pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
+ const enum data_queue_qid queue_idx)
+{
+ struct data_queue *queue;
+ unsigned int idx, qidx = 0;
+ u32 reg;
+
+ if (queue_idx == QID_BEACON) {
+ rt2800_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+ if (!rt2x00_get_field32(reg, BCN_TIME_CFG_BEACON_GEN)) {
+ rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
+ rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
+ rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
+ rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+ }
+ return;
+ }
+
+ if (queue_idx > QID_HCCA && queue_idx != QID_MGMT)
+ return;
+
+ queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
+ idx = queue->index[Q_INDEX];
+
+ if (queue_idx == QID_MGMT)
+ qidx = 5;
+ else
+ qidx = queue_idx;
+
+ rt2800_register_write(rt2x00dev, TX_CTX_IDX(qidx), idx);
+}
+
+static void rt2800pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
+ const enum data_queue_qid qid)
+{
+ u32 reg;
+
+ if (qid == QID_BEACON) {
+ rt2800_register_write(rt2x00dev, BCN_TIME_CFG, 0);
+ return;
+ }
+
+ rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, (qid == QID_AC_BE));
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, (qid == QID_AC_BK));
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, (qid == QID_AC_VI));
+ rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, (qid == QID_AC_VO));
+ rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
+}
+
+/*
+ * RX control handlers
+ */
+static void rt2800pci_fill_rxdone(struct queue_entry *entry,
+ struct rxdone_entry_desc *rxdesc)
+{
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+ struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+ struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+ __le32 *rxd = entry_priv->desc;
+ __le32 *rxwi = (__le32 *)entry->skb->data;
+ u32 rxd3;
+ u32 rxwi0;
+ u32 rxwi1;
+ u32 rxwi2;
+ u32 rxwi3;
+
+ rt2x00_desc_read(rxd, 3, &rxd3);
+ rt2x00_desc_read(rxwi, 0, &rxwi0);
+ rt2x00_desc_read(rxwi, 1, &rxwi1);
+ rt2x00_desc_read(rxwi, 2, &rxwi2);
+ rt2x00_desc_read(rxwi, 3, &rxwi3);
+
+ if (rt2x00_get_field32(rxd3, RXD_W3_CRC_ERROR))
+ rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
+
+ if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
+ /*
+ * Unfortunately we don't know the cipher type used during
+ * decryption. This prevents us from correct providing
+ * correct statistics through debugfs.
+ */
+ rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF);
+ rxdesc->cipher_status =
+ rt2x00_get_field32(rxd3, RXD_W3_CIPHER_ERROR);
+ }
+
+ if (rt2x00_get_field32(rxd3, RXD_W3_DECRYPTED)) {
+ /*
+ * Hardware has stripped IV/EIV data from 802.11 frame during
+ * decryption. Unfortunately the descriptor doesn't contain
+ * any fields with the EIV/IV data either, so they can't
+ * be restored by rt2x00lib.
+ */
+ rxdesc->flags |= RX_FLAG_IV_STRIPPED;
+
+ if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
+ rxdesc->flags |= RX_FLAG_DECRYPTED;
+ else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
+ rxdesc->flags |= RX_FLAG_MMIC_ERROR;
+ }
+
+ if (rt2x00_get_field32(rxd3, RXD_W3_MY_BSS))
+ rxdesc->dev_flags |= RXDONE_MY_BSS;
+
+ if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD)) {
+ rxdesc->dev_flags |= RXDONE_L2PAD;
+ skbdesc->flags |= SKBDESC_L2_PADDED;
+ }
+
+ if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
+ rxdesc->flags |= RX_FLAG_SHORT_GI;
+
+ if (rt2x00_get_field32(rxwi1, RXWI_W1_BW))
+ rxdesc->flags |= RX_FLAG_40MHZ;
+
+ /*
+ * Detect RX rate, always use MCS as signal type.
+ */
+ rxdesc->dev_flags |= RXDONE_SIGNAL_MCS;
+ rxdesc->rate_mode = rt2x00_get_field32(rxwi1, RXWI_W1_PHYMODE);
+ rxdesc->signal = rt2x00_get_field32(rxwi1, RXWI_W1_MCS);
+
+ /*
+ * Mask of 0x8 bit to remove the short preamble flag.
+ */
+ if (rxdesc->rate_mode == RATE_MODE_CCK)
+ rxdesc->signal &= ~0x8;
+
+ rxdesc->rssi =
+ (rt2x00_get_field32(rxwi2, RXWI_W2_RSSI0) +
+ rt2x00_get_field32(rxwi2, RXWI_W2_RSSI1)) / 2;
+
+ rxdesc->noise =
+ (rt2x00_get_field32(rxwi3, RXWI_W3_SNR0) +
+ rt2x00_get_field32(rxwi3, RXWI_W3_SNR1)) / 2;
+
+ rxdesc->size = rt2x00_get_field32(rxwi0, RXWI_W0_MPDU_TOTAL_BYTE_COUNT);
+
+ /*
+ * Set RX IDX in register to inform hardware that we have handled
+ * this entry and it is available for reuse again.
+ */
+ rt2800_register_write(rt2x00dev, RX_CRX_IDX, entry->entry_idx);
+
+ /*
+ * Remove TXWI descriptor from start of buffer.
+ */
+ skb_pull(entry->skb, RXWI_DESC_SIZE);
+ skb_trim(entry->skb, rxdesc->size);
+}
+
+/*
+ * Interrupt functions.
+ */
+static void rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
+{
+ struct data_queue *queue;
+ struct queue_entry *entry;
+ struct queue_entry *entry_done;
+ struct queue_entry_priv_pci *entry_priv;
+ struct txdone_entry_desc txdesc;
+ u32 word;
+ u32 reg;
+ u32 old_reg;
+ unsigned int type;
+ unsigned int index;
+ u16 mcs, real_mcs;
+
+ /*
+ * During each loop we will compare the freshly read
+ * TX_STA_FIFO register value with the value read from
+ * the previous loop. If the 2 values are equal then
+ * we should stop processing because the chance it
+ * quite big that the device has been unplugged and
+ * we risk going into an endless loop.
+ */
+ old_reg = 0;
+
+ while (1) {
+ rt2800_register_read(rt2x00dev, TX_STA_FIFO, &reg);
+ if (!rt2x00_get_field32(reg, TX_STA_FIFO_VALID))
+ break;
+
+ if (old_reg == reg)
+ break;
+ old_reg = reg;
+
+ /*
+ * Skip this entry when it contains an invalid
+ * queue identication number.
+ */
+ type = rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE) - 1;
+ if (type >= QID_RX)
+ continue;
+
+ queue = rt2x00queue_get_queue(rt2x00dev, type);
+ if (unlikely(!queue))
+ continue;
+
+ /*
+ * Skip this entry when it contains an invalid
+ * index number.
+ */
+ index = rt2x00_get_field32(reg, TX_STA_FIFO_WCID) - 1;
+ if (unlikely(index >= queue->limit))
+ continue;
+
+ entry = &queue->entries[index];
+ entry_priv = entry->priv_data;
+ rt2x00_desc_read((__le32 *)entry->skb->data, 0, &word);
+
+ entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
+ while (entry != entry_done) {
+ /*
+ * Catch up.
+ * Just report any entries we missed as failed.
+ */
+ WARNING(rt2x00dev,
+ "TX status report missed for entry %d\n",
+ entry_done->entry_idx);
+
+ txdesc.flags = 0;
+ __set_bit(TXDONE_UNKNOWN, &txdesc.flags);
+ txdesc.retry = 0;
+
+ rt2x00lib_txdone(entry_done, &txdesc);
+ entry_done = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
+ }
+
+ /*
+ * Obtain the status about this packet.
+ */
+ txdesc.flags = 0;
+ if (rt2x00_get_field32(reg, TX_STA_FIFO_TX_SUCCESS))
+ __set_bit(TXDONE_SUCCESS, &txdesc.flags);
+ else
+ __set_bit(TXDONE_FAILURE, &txdesc.flags);
+
+ /*
+ * Ralink has a retry mechanism using a global fallback
+ * table. We setup this fallback table to try immediate
+ * lower rate for all rates. In the TX_STA_FIFO,
+ * the MCS field contains the MCS used for the successfull
+ * transmission. If the first transmission succeed,
+ * we have mcs == tx_mcs. On the second transmission,
+ * we have mcs = tx_mcs - 1. So the number of
+ * retry is (tx_mcs - mcs).
+ */
+ mcs = rt2x00_get_field32(word, TXWI_W0_MCS);
+ real_mcs = rt2x00_get_field32(reg, TX_STA_FIFO_MCS);
+ __set_bit(TXDONE_FALLBACK, &txdesc.flags);
+ txdesc.retry = mcs - min(mcs, real_mcs);
+
+ rt2x00lib_txdone(entry, &txdesc);
+ }
+}
+
+static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
+{
+ struct rt2x00_dev *rt2x00dev = dev_instance;
+ u32 reg;
+
+ /* Read status and ACK all interrupts */
+ rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+ rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+ if (!reg)
+ return IRQ_NONE;
+
+ if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+ return IRQ_HANDLED;
+
+ /*
+ * 1 - Rx ring done interrupt.
+ */
+ if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE))
+ rt2x00pci_rxdone(rt2x00dev);
+
+ if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS))
+ rt2800pci_txdone(rt2x00dev);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Device probe functions.
+ */
+static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+ /*
+ * Read EEPROM into buffer
+ */
+ switch (rt2x00dev->chip.rt) {
+ case RT2880:
+ case RT3052:
+ rt2800pci_read_eeprom_soc(rt2x00dev);
+ break;
+ default:
+ if (rt2800pci_efuse_detect(rt2x00dev))
+ rt2800pci_read_eeprom_efuse(rt2x00dev);
+ else
+ rt2800pci_read_eeprom_pci(rt2x00dev);
+ break;
+ }
+
+ return rt2800_validate_eeprom(rt2x00dev);
+}
+
+static const struct rt2800_ops rt2800pci_rt2800_ops = {
+ .register_read = rt2x00pci_register_read,
+ .register_read_lock = rt2x00pci_register_read, /* same for PCI */
+ .register_write = rt2x00pci_register_write,
+ .register_write_lock = rt2x00pci_register_write, /* same for PCI */
+
+ .register_multiread = rt2x00pci_register_multiread,
+ .register_multiwrite = rt2x00pci_register_multiwrite,
+
+ .regbusy_read = rt2x00pci_regbusy_read,
+};
+
+static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
+{
+ int retval;
+
+ rt2x00dev->priv = (void *)&rt2800pci_rt2800_ops;
+
+ /*
+ * Allocate eeprom data.
+ */
+ retval = rt2800pci_validate_eeprom(rt2x00dev);
+ if (retval)
+ return retval;
+
+ retval = rt2800_init_eeprom(rt2x00dev);
+ if (retval)
+ return retval;
+
+ /*
+ * Initialize hw specifications.
+ */
+ retval = rt2800_probe_hw_mode(rt2x00dev);
+ if (retval)
+ return retval;
+
+ /*
+ * This device has multiple filters for control frames
+ * and has a separate filter for PS Poll frames.
+ */
+ __set_bit(DRIVER_SUPPORT_CONTROL_FILTERS, &rt2x00dev->flags);
+ __set_bit(DRIVER_SUPPORT_CONTROL_FILTER_PSPOLL, &rt2x00dev->flags);
+
+ /*
+ * This device requires firmware.
+ */
+ if (!rt2x00_rt(&rt2x00dev->chip, RT2880) &&
+ !rt2x00_rt(&rt2x00dev->chip, RT3052))
+ __set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
+ __set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags);
+ __set_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags);
+ if (!modparam_nohwcrypt)
+ __set_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags);
+
+ /*
+ * Set the rssi offset.
+ */
+ rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
+
+ return 0;
+}
+
+static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
+ .irq_handler = rt2800pci_interrupt,
+ .probe_hw = rt2800pci_probe_hw,
+ .get_firmware_name = rt2800pci_get_firmware_name,
+ .check_firmware = rt2800pci_check_firmware,
+ .load_firmware = rt2800pci_load_firmware,
+ .initialize = rt2x00pci_initialize,
+ .uninitialize = rt2x00pci_uninitialize,
+ .get_entry_state = rt2800pci_get_entry_state,
+ .clear_entry = rt2800pci_clear_entry,
+ .set_device_state = rt2800pci_set_device_state,
+ .rfkill_poll = rt2800_rfkill_poll,
+ .link_stats = rt2800_link_stats,
+ .reset_tuner = rt2800_reset_tuner,
+ .link_tuner = rt2800_link_tuner,
+ .write_tx_desc = rt2800pci_write_tx_desc,
+ .write_tx_data = rt2x00pci_write_tx_data,
+ .write_beacon = rt2800pci_write_beacon,
+ .kick_tx_queue = rt2800pci_kick_tx_queue,
+ .kill_tx_queue = rt2800pci_kill_tx_queue,
+ .fill_rxdone = rt2800pci_fill_rxdone,
+ .config_shared_key = rt2800_config_shared_key,
+ .config_pairwise_key = rt2800_config_pairwise_key,
+ .config_filter = rt2800_config_filter,
+ .config_intf = rt2800_config_intf,
+ .config_erp = rt2800_config_erp,
+ .config_ant = rt2800_config_ant,
+ .config = rt2800_config,
+};
+
+static const struct data_queue_desc rt2800pci_queue_rx = {
+ .entry_num = RX_ENTRIES,
+ .data_size = AGGREGATION_SIZE,
+ .desc_size = RXD_DESC_SIZE,
+ .priv_size = sizeof(struct queue_entry_priv_pci),
+};
+
+static const struct data_queue_desc rt2800pci_queue_tx = {
+ .entry_num = TX_ENTRIES,
+ .data_size = AGGREGATION_SIZE,
+ .desc_size = TXD_DESC_SIZE,
+ .priv_size = sizeof(struct queue_entry_priv_pci),
+};
+
+static const struct data_queue_desc rt2800pci_queue_bcn = {
+ .entry_num = 8 * BEACON_ENTRIES,
+ .data_size = 0, /* No DMA required for beacons */
+ .desc_size = TXWI_DESC_SIZE,
+ .priv_size = sizeof(struct queue_entry_priv_pci),
+};
+
+static const struct rt2x00_ops rt2800pci_ops = {
+ .name = KBUILD_MODNAME,
+ .max_sta_intf = 1,
+ .max_ap_intf = 8,
+ .eeprom_size = EEPROM_SIZE,
+ .rf_size = RF_SIZE,
+ .tx_queues = NUM_TX_QUEUES,
+ .extra_tx_headroom = TXWI_DESC_SIZE,
+ .rx = &rt2800pci_queue_rx,
+ .tx = &rt2800pci_queue_tx,
+ .bcn = &rt2800pci_queue_bcn,
+ .lib = &rt2800pci_rt2x00_ops,
+ .hw = &rt2800_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+ .debugfs = &rt2800_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+/*
+ * RT2800pci module information.
+ */
+static struct pci_device_id rt2800pci_device_table[] = {
+ { PCI_DEVICE(0x1462, 0x891a), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7708), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7727), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7728), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7738), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7748), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7758), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1432, 0x7768), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x0601), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x0681), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x0701), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x0781), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3060), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3062), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3090), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3091), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3092), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3562), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1814, 0x3592), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { PCI_DEVICE(0x1a3b, 0x1059), PCI_DEVICE_DATA(&rt2800pci_ops) },
+ { 0, }
+};
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink RT2800 PCI & PCMCIA Wireless LAN driver.");
+MODULE_SUPPORTED_DEVICE("Ralink RT2860 PCI & PCMCIA chipset based cards");
+#ifdef CONFIG_RT2800PCI_PCI
+MODULE_FIRMWARE(FIRMWARE_RT2860);
+MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
+#endif /* CONFIG_RT2800PCI_PCI */
+MODULE_LICENSE("GPL");
+
+#ifdef CONFIG_RT2800PCI_WISOC
+#if defined(CONFIG_RALINK_RT288X)
+__rt2x00soc_probe(RT2880, &rt2800pci_ops);
+#elif defined(CONFIG_RALINK_RT305X)
+__rt2x00soc_probe(RT3052, &rt2800pci_ops);
+#endif
+
+static struct platform_driver rt2800soc_driver = {
+ .driver = {
+ .name = "rt2800_wmac",
+ .owner = THIS_MODULE,
+ .mod_name = KBUILD_MODNAME,
+ },
+ .probe = __rt2x00soc_probe,
+ .remove = __devexit_p(rt2x00soc_remove),
+ .suspend = rt2x00soc_suspend,
+ .resume = rt2x00soc_resume,
+};
+#endif /* CONFIG_RT2800PCI_WISOC */
+
+#ifdef CONFIG_RT2800PCI_PCI
+static struct pci_driver rt2800pci_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = rt2800pci_device_table,
+ .probe = rt2x00pci_probe,
+ .remove = __devexit_p(rt2x00pci_remove),
+ .suspend = rt2x00pci_suspend,
+ .resume = rt2x00pci_resume,
+};
+#endif /* CONFIG_RT2800PCI_PCI */
+
+static int __init rt2800pci_init(void)
+{
+ int ret = 0;
+
+#ifdef CONFIG_RT2800PCI_WISOC
+ ret = platform_driver_register(&rt2800soc_driver);
+ if (ret)
+ return ret;
+#endif
+#ifdef CONFIG_RT2800PCI_PCI
+ ret = pci_register_driver(&rt2800pci_driver);
+ if (ret) {
+#ifdef CONFIG_RT2800PCI_WISOC
+ platform_driver_unregister(&rt2800soc_driver);
+#endif
+ return ret;
+ }
+#endif
+
+ return ret;
+}
+
+static void __exit rt2800pci_exit(void)
+{
+#ifdef CONFIG_RT2800PCI_PCI
+ pci_unregister_driver(&rt2800pci_driver);
+#endif
+#ifdef CONFIG_RT2800PCI_WISOC
+ platform_driver_unregister(&rt2800soc_driver);
+#endif
+}
+
+module_init(rt2800pci_init);
+module_exit(rt2800pci_exit);
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