rt2800pci.c 35.3 KB
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/*
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	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>
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	<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"
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#include "rt2800lib.h"
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#include "rt2800.h"
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#include "rt2800pci.h"

/*
 * 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;

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	/*
	 * SOC devices don't support MCU requests.
	 */
	if (rt2x00_is_soc(rt2x00dev))
		return;

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	for (i = 0; i < 200; i++) {
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		rt2800_register_read(rt2x00dev, H2M_MAILBOX_CID, &reg);
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		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");

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	rt2800_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
	rt2800_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
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}

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#ifdef CONFIG_RT2800PCI_SOC
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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)
{
}
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#endif /* CONFIG_RT2800PCI_SOC */
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#ifdef CONFIG_RT2800PCI_PCI
static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
{
	struct rt2x00_dev *rt2x00dev = eeprom->data;
	u32 reg;

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	rt2800_register_read(rt2x00dev, E2PROM_CSR, &reg);
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	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);

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	rt2800_register_write(rt2x00dev, E2PROM_CSR, reg);
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}

static void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
{
	struct eeprom_93cx6 eeprom;
	u32 reg;

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	rt2800_register_read(rt2x00dev, E2PROM_CSR, &reg);
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	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));
}

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static int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
{
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	return rt2800_efuse_detect(rt2x00dev);
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}

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static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
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{
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	rt2800_read_eeprom_efuse(rt2x00dev);
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}
#else
static inline void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
{
}

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static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
{
	return 0;
}

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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++) {
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		rt2800_register_read(rt2x00dev, MAC_CSR0, &reg);
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		if (reg && reg != ~0)
			break;
		msleep(1);
	}

	if (i == REGISTER_BUSY_COUNT) {
		ERROR(rt2x00dev, "Unstable hardware.\n");
		return -EBUSY;
	}

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	rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002);
	rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000);
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	/*
	 * Disable DMA, will be reenabled later when enabling
	 * the radio.
	 */
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	rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
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	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);
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	rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
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	/*
	 * enable Host program ram write selection
	 */
	reg = 0;
	rt2x00_set_field32(&reg, PBF_SYS_CTRL_HOST_RAM_WRITE, 1);
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	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg);
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	/*
	 * Write firmware to device.
	 */
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	rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
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				      data, len);

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	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000);
	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001);
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	/*
	 * Wait for device to stabilize.
	 */
	for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
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		rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, &reg);
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		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
	 */
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	rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
	rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
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	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;

	/*
	 * Initialize registers.
	 */
	entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
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	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);
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	entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
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	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);
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	entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
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	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);
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	entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
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	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);
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	entry_priv = rt2x00dev->rx->entries[0].priv_data;
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	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);
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	/*
	 * Enable global DMA configuration
	 */
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	rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
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	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);
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	rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
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	rt2800_register_write(rt2x00dev, DELAY_INT_CFG, 0);
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	return 0;
}

/*
 * Device state switch handlers.
 */
static void rt2800pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
				enum dev_state state)
{
	u32 reg;

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	rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
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	rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX,
			   (state == STATE_RADIO_RX_ON) ||
			   (state == STATE_RADIO_RX_ON_LINK));
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	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
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}

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) {
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		rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
		rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
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	}

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	rt2800_register_read(rt2x00dev, INT_MASK_CSR, &reg);
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	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);
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	rt2800_register_write(rt2x00dev, INT_MASK_CSR, reg);
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}

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static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev)
{
	u32 reg;

	/*
	 * Reset DMA indexes
	 */
	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);

	rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);

	rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);

	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);

	return 0;
}

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static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
	u32 reg;
	u16 word;

	/*
	 * Initialize all registers.
	 */
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	if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
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		     rt2800pci_init_queues(rt2x00dev) ||
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		     rt2800_init_registers(rt2x00dev) ||
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		     rt2800_wait_wpdma_ready(rt2x00dev) ||
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		     rt2800_init_bbp(rt2x00dev) ||
		     rt2800_init_rfcsr(rt2x00dev)))
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		return -EIO;

	/*
	 * Send signal to firmware during boot time.
	 */
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	rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
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	/*
	 * Enable RX.
	 */
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	rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
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	rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_TX, 1);
	rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
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	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
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	rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
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	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);
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	rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
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	rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
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	rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_TX, 1);
	rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
520
	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
521 522 523 524 525

	/*
	 * Initialize LED control
	 */
	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED1, &word);
526
	rt2800_mcu_request(rt2x00dev, MCU_LED_1, 0xff,
527 528 529
			      word & 0xff, (word >> 8) & 0xff);

	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED2, &word);
530
	rt2800_mcu_request(rt2x00dev, MCU_LED_2, 0xff,
531 532 533
			      word & 0xff, (word >> 8) & 0xff);

	rt2x00_eeprom_read(rt2x00dev, EEPROM_LED3, &word);
534
	rt2800_mcu_request(rt2x00dev, MCU_LED_3, 0xff,
535 536 537 538 539 540 541 542 543
			      word & 0xff, (word >> 8) & 0xff);

	return 0;
}

static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
{
	u32 reg;

544
	rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
545 546 547 548 549
	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);
550
	rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
551

552 553 554
	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0);
	rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0);
	rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0);
555

556
	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001280);
557

558
	rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
559 560 561 562 563 564 565
	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);
566
	rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
567

568 569
	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
	rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
570 571

	/* Wait for DMA, ignore error */
572
	rt2800_wait_wpdma_ready(rt2x00dev);
573 574 575 576 577 578 579 580 581 582
}

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.
	 */
583
	rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0, 2);
584 585

	if (state == STATE_AWAKE) {
586
		rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKUP, 0, 0);
587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647
		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
 */
648 649
static void rt2800pci_write_tx_datadesc(struct queue_entry* entry,
					 struct txentry_desc *txdesc)
650
{
651
	rt2800_write_txwi((__le32 *) entry->skb->data, txdesc);
652 653 654 655 656 657 658 659
}


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);
660 661
	struct queue_entry_priv_pci *entry_priv = skbdesc->entry->priv_data;
	__le32 *txd = entry_priv->desc;
662 663
	u32 word;

664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684
	/*
	 * 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));
685
	rt2x00_set_field32(&word, TXD_W1_SD_LEN0, TXWI_DESC_SIZE);
686 687 688 689 690 691
	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,
692
			   skbdesc->skb_dma + TXWI_DESC_SIZE);
693 694 695 696 697 698 699
	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);
700 701 702 703 704 705

	/*
	 * Register descriptor details in skb frame descriptor.
	 */
	skbdesc->desc = txd;
	skbdesc->desc_len = TXD_DESC_SIZE;
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727
}

/*
 * TX data initialization
 */
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;

	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;

728
	rt2800_register_write(rt2x00dev, TX_CTX_IDX(qidx), idx);
729 730 731 732 733 734 735 736
}

static void rt2800pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
				    const enum data_queue_qid qid)
{
	u32 reg;

	if (qid == QID_BEACON) {
737
		rt2800_register_write(rt2x00dev, BCN_TIME_CFG, 0);
738 739 740
		return;
	}

741
	rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
742 743 744 745
	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));
746
	rt2800_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
747 748 749 750 751 752 753 754 755 756 757
}

/*
 * 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 queue_entry_priv_pci *entry_priv = entry->priv_data;
	__le32 *rxd = entry_priv->desc;
758 759 760 761 762
	u32 word;

	rt2x00_desc_read(rxd, 3, &word);

	if (rt2x00_get_field32(word, RXD_W3_CRC_ERROR))
763 764
		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;

765 766 767 768 769
	/*
	 * Unfortunately we don't know the cipher type used during
	 * decryption. This prevents us from correct providing
	 * correct statistics through debugfs.
	 */
770
	rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W3_CIPHER_ERROR);
771

772
	if (rt2x00_get_field32(word, RXD_W3_DECRYPTED)) {
773 774 775 776 777 778 779 780 781 782 783 784 785 786
		/*
		 * 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;
	}

787
	if (rt2x00_get_field32(word, RXD_W3_MY_BSS))
788 789
		rxdesc->dev_flags |= RXDONE_MY_BSS;

790
	if (rt2x00_get_field32(word, RXD_W3_L2PAD))
791 792 793
		rxdesc->dev_flags |= RXDONE_L2PAD;

	/*
794
	 * Process the RXWI structure that is at the start of the buffer.
795
	 */
796
	rt2800_process_rxwi(entry->skb, rxdesc);
797 798 799 800 801

	/*
	 * Set RX IDX in register to inform hardware that we have handled
	 * this entry and it is available for reuse again.
	 */
802
	rt2800_register_write(rt2x00dev, RX_CRX_IDX, entry->entry_idx);
803 804 805 806 807 808 809 810 811
}

/*
 * Interrupt functions.
 */
static void rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
{
	struct data_queue *queue;
	struct queue_entry *entry;
812
	__le32 *txwi;
813 814 815
	struct txdone_entry_desc txdesc;
	u32 word;
	u32 reg;
816
	int wcid, ack, pid, tx_wcid, tx_ack, tx_pid;
817
	u16 mcs, real_mcs;
H
Helmut Schaa 已提交
818
	int i;
819 820

	/*
H
Helmut Schaa 已提交
821 822 823 824 825 826 827
	 * TX_STA_FIFO is a stack of X entries, hence read TX_STA_FIFO
	 * at most X times and also stop processing once the TX_STA_FIFO_VALID
	 * flag is not set anymore.
	 *
	 * The legacy drivers use X=TX_RING_SIZE but state in a comment
	 * that the TX_STA_FIFO stack has a size of 16. We stick to our
	 * tx ring size for now.
828
	 */
H
Helmut Schaa 已提交
829
	for (i = 0; i < TX_ENTRIES; i++) {
830
		rt2800_register_read(rt2x00dev, TX_STA_FIFO, &reg);
831 832 833
		if (!rt2x00_get_field32(reg, TX_STA_FIFO_VALID))
			break;

834 835 836 837
		wcid    = rt2x00_get_field32(reg, TX_STA_FIFO_WCID);
		ack     = rt2x00_get_field32(reg, TX_STA_FIFO_TX_ACK_REQUIRED);
		pid     = rt2x00_get_field32(reg, TX_STA_FIFO_PID_TYPE);

838 839 840 841
		/*
		 * Skip this entry when it contains an invalid
		 * queue identication number.
		 */
842
		if (pid <= 0 || pid > QID_RX)
843 844
			continue;

845
		queue = rt2x00queue_get_queue(rt2x00dev, pid - 1);
846 847 848 849
		if (unlikely(!queue))
			continue;

		/*
850 851
		 * Inside each queue, we process each entry in a chronological
		 * order. We first check that the queue is not empty.
852
		 */
853
		if (rt2x00queue_empty(queue))
854
			continue;
855
		entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
856

857 858
		/* Check if we got a match by looking at WCID/ACK/PID
		 * fields */
859
		txwi = (__le32 *) entry->skb->data;
860 861 862 863 864 865 866 867

		rt2x00_desc_read(txwi, 1, &word);
		tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
		tx_ack  = rt2x00_get_field32(word, TXWI_W1_ACK);
		tx_pid  = rt2x00_get_field32(word, TXWI_W1_PACKETID);

		if ((wcid != tx_wcid) || (ack != tx_ack) || (pid != tx_pid))
			WARNING(rt2x00dev, "invalid TX_STA_FIFO content\n");
868 869 870 871 872

		/*
		 * Obtain the status about this packet.
		 */
		txdesc.flags = 0;
873 874 875
		rt2x00_desc_read(txwi, 0, &word);
		mcs = rt2x00_get_field32(word, TXWI_W0_MCS);
		real_mcs = rt2x00_get_field32(reg, TX_STA_FIFO_MCS);
876 877 878

		/*
		 * Ralink has a retry mechanism using a global fallback
879 880 881 882
		 * table. We setup this fallback table to try the immediate
		 * lower rate for all rates. In the TX_STA_FIFO, the MCS field
		 * always contains the MCS used for the last transmission, be
		 * it successful or not.
883
		 */
884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900
		if (rt2x00_get_field32(reg, TX_STA_FIFO_TX_SUCCESS)) {
			/*
			 * Transmission succeeded. The number of retries is
			 * mcs - real_mcs
			 */
			__set_bit(TXDONE_SUCCESS, &txdesc.flags);
			txdesc.retry = ((mcs > real_mcs) ? mcs - real_mcs : 0);
		} else {
			/*
			 * Transmission failed. The number of retries is
			 * always 7 in this case (for a total number of 8
			 * frames sent).
			 */
			__set_bit(TXDONE_FAILURE, &txdesc.flags);
			txdesc.retry = 7;
		}

901 902 903 904 905 906
		/*
		 * the frame was retried at least once
		 * -> hw used fallback rates
		 */
		if (txdesc.retry)
			__set_bit(TXDONE_FALLBACK, &txdesc.flags);
907

908
		rt2x00pci_txdone(entry, &txdesc);
909 910 911
	}
}

912 913 914 915 916 917 918 919
static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev)
{
	struct ieee80211_conf conf = { .flags = 0 };
	struct rt2x00lib_conf libconf = { .conf = &conf };

	rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
}

920 921 922 923 924 925
static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
{
	struct rt2x00_dev *rt2x00dev = dev_instance;
	u32 reg;

	/* Read status and ACK all interrupts */
926 927
	rt2800_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
	rt2800_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943

	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);

944 945 946
	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP))
		rt2800pci_wakeup(rt2x00dev);

947 948 949 950 951 952
	return IRQ_HANDLED;
}

/*
 * Device probe functions.
 */
953 954 955 956 957
static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
	/*
	 * Read EEPROM into buffer
	 */
958
	if (rt2x00_is_soc(rt2x00dev))
959
		rt2800pci_read_eeprom_soc(rt2x00dev);
960 961 962 963
	else if (rt2800pci_efuse_detect(rt2x00dev))
		rt2800pci_read_eeprom_efuse(rt2x00dev);
	else
		rt2800pci_read_eeprom_pci(rt2x00dev);
964 965 966 967

	return rt2800_validate_eeprom(rt2x00dev);
}

968 969
static const struct rt2800_ops rt2800pci_rt2800_ops = {
	.register_read		= rt2x00pci_register_read,
970
	.register_read_lock	= rt2x00pci_register_read, /* same for PCI */
971 972 973 974 975 976 977
	.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,
978 979

	.drv_init_registers	= rt2800pci_init_registers,
980 981
};

982 983 984 985
static int rt2800pci_probe_hw(struct rt2x00_dev *rt2x00dev)
{
	int retval;

986 987
	rt2x00dev->priv = (void *)&rt2800pci_rt2800_ops;

988 989 990 991 992 993 994
	/*
	 * Allocate eeprom data.
	 */
	retval = rt2800pci_validate_eeprom(rt2x00dev);
	if (retval)
		return retval;

995
	retval = rt2800_init_eeprom(rt2x00dev);
996 997 998 999 1000 1001
	if (retval)
		return retval;

	/*
	 * Initialize hw specifications.
	 */
1002
	retval = rt2800_probe_hw_mode(rt2x00dev);
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
	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.
	 */
1016
	if (!rt2x00_is_soc(rt2x00dev))
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
		__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,
1042 1043 1044 1045
	.rfkill_poll		= rt2800_rfkill_poll,
	.link_stats		= rt2800_link_stats,
	.reset_tuner		= rt2800_reset_tuner,
	.link_tuner		= rt2800_link_tuner,
1046
	.write_tx_desc		= rt2800pci_write_tx_desc,
1047 1048
	.write_tx_data		= rt2x00pci_write_tx_data,
	.write_tx_datadesc	= rt2800pci_write_tx_datadesc,
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	.write_beacon		= rt2800_write_beacon,
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	.kick_tx_queue		= rt2800pci_kick_tx_queue,
	.kill_tx_queue		= rt2800pci_kill_tx_queue,
	.fill_rxdone		= rt2800pci_fill_rxdone,
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	.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,
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};

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 = {
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	.name			= KBUILD_MODNAME,
	.max_sta_intf		= 1,
	.max_ap_intf		= 8,
	.eeprom_size		= EEPROM_SIZE,
	.rf_size		= RF_SIZE,
	.tx_queues		= NUM_TX_QUEUES,
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	.extra_tx_headroom	= TXWI_DESC_SIZE,
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	.rx			= &rt2800pci_queue_rx,
	.tx			= &rt2800pci_queue_tx,
	.bcn			= &rt2800pci_queue_bcn,
	.lib			= &rt2800pci_rt2x00_ops,
	.hw			= &rt2800_mac80211_ops,
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#ifdef CONFIG_RT2X00_LIB_DEBUGFS
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	.debugfs		= &rt2800_rt2x00debug,
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#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};

/*
 * RT2800pci module information.
 */
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#ifdef CONFIG_RT2800PCI_PCI
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static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
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	{ 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) },
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	{ 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) },
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	{ PCI_DEVICE(0x1a3b, 0x1059), PCI_DEVICE_DATA(&rt2800pci_ops) },
#ifdef CONFIG_RT2800PCI_RT30XX
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	{ 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) },
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	{ PCI_DEVICE(0x1462, 0x891a), PCI_DEVICE_DATA(&rt2800pci_ops) },
#endif
#ifdef CONFIG_RT2800PCI_RT35XX
	{ PCI_DEVICE(0x1814, 0x3060), PCI_DEVICE_DATA(&rt2800pci_ops) },
	{ PCI_DEVICE(0x1814, 0x3062), PCI_DEVICE_DATA(&rt2800pci_ops) },
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	{ PCI_DEVICE(0x1814, 0x3562), PCI_DEVICE_DATA(&rt2800pci_ops) },
	{ PCI_DEVICE(0x1814, 0x3592), PCI_DEVICE_DATA(&rt2800pci_ops) },
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	{ PCI_DEVICE(0x1814, 0x3593), PCI_DEVICE_DATA(&rt2800pci_ops) },
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#endif
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	{ 0, }
};
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#endif /* CONFIG_RT2800PCI_PCI */
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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");

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#ifdef CONFIG_RT2800PCI_SOC
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static int rt2800soc_probe(struct platform_device *pdev)
{
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	return rt2x00soc_probe(pdev, &rt2800pci_ops);
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}
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static struct platform_driver rt2800soc_driver = {
	.driver		= {
		.name		= "rt2800_wmac",
		.owner		= THIS_MODULE,
		.mod_name	= KBUILD_MODNAME,
	},
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	.probe		= rt2800soc_probe,
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	.remove		= __devexit_p(rt2x00soc_remove),
	.suspend	= rt2x00soc_suspend,
	.resume		= rt2x00soc_resume,
};
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#endif /* CONFIG_RT2800PCI_SOC */
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#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;

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#ifdef CONFIG_RT2800PCI_SOC
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	ret = platform_driver_register(&rt2800soc_driver);
	if (ret)
		return ret;
#endif
#ifdef CONFIG_RT2800PCI_PCI
	ret = pci_register_driver(&rt2800pci_driver);
	if (ret) {
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#ifdef CONFIG_RT2800PCI_SOC
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		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
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#ifdef CONFIG_RT2800PCI_SOC
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	platform_driver_unregister(&rt2800soc_driver);
#endif
}

module_init(rt2800pci_init);
module_exit(rt2800pci_exit);