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rt2800usb.c
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rt2800usb.c
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/*
Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
Copyright (C) 2009 - 2010 Ivo van Doorn <[email protected]>
Copyright (C) 2009 Mattias Nissler <[email protected]>
Copyright (C) 2009 Felix Fietkau <[email protected]>
Copyright (C) 2009 Xose Vazquez Perez <[email protected]>
Copyright (C) 2009 Axel Kollhofer <[email protected]>
<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: rt2800usb
Abstract: rt2800usb device specific routines.
Supported chipsets: RT2800U.
*/
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "rt2x00.h"
#include "rt2x00usb.h"
#include "rt2800lib.h"
#include "rt2800.h"
#include "rt2800usb.h"
/*
* Allow hardware encryption to be disabled.
*/
static bool modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
/*
* Queue handlers.
*/
static void rt2800usb_start_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_RX:
rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 1);
rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, ®);
rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1);
rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1);
rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1);
rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
break;
default:
break;
}
}
static void rt2800usb_stop_queue(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
u32 reg;
switch (queue->qid) {
case QID_RX:
rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 0);
rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, ®);
rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 0);
rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 0);
rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 0);
rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
break;
default:
break;
}
}
/*
* test if there is an entry in any TX queue for which DMA is done
* but the TX status has not been returned yet
*/
static bool rt2800usb_txstatus_pending(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
tx_queue_for_each(rt2x00dev, queue) {
if (rt2x00queue_get_entry(queue, Q_INDEX_DMA_DONE) !=
rt2x00queue_get_entry(queue, Q_INDEX_DONE))
return true;
}
return false;
}
static inline bool rt2800usb_entry_txstatus_timeout(struct queue_entry *entry)
{
bool tout;
if (!test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
return false;
tout = time_after(jiffies, entry->last_action + msecs_to_jiffies(100));
if (unlikely(tout))
WARNING(entry->queue->rt2x00dev,
"TX status timeout for entry %d in queue %d\n",
entry->entry_idx, entry->queue->qid);
return tout;
}
static bool rt2800usb_txstatus_timeout(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
struct queue_entry *entry;
tx_queue_for_each(rt2x00dev, queue) {
entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
if (rt2800usb_entry_txstatus_timeout(entry))
return true;
}
return false;
}
static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev,
int urb_status, u32 tx_status)
{
bool valid;
if (urb_status) {
WARNING(rt2x00dev, "TX status read failed %d\n", urb_status);
goto stop_reading;
}
valid = rt2x00_get_field32(tx_status, TX_STA_FIFO_VALID);
if (valid) {
if (!kfifo_put(&rt2x00dev->txstatus_fifo, &tx_status))
WARNING(rt2x00dev, "TX status FIFO overrun\n");
queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
/* Reschedule urb to read TX status again instantly */
return true;
}
/* Check if there is any entry that timedout waiting on TX status */
if (rt2800usb_txstatus_timeout(rt2x00dev))
queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
if (rt2800usb_txstatus_pending(rt2x00dev)) {
/* Read register after 250 us */
hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 250000),
HRTIMER_MODE_REL);
return false;
}
stop_reading:
clear_bit(TX_STATUS_READING, &rt2x00dev->flags);
/*
* There is small race window above, between txstatus pending check and
* clear_bit someone could do rt2x00usb_interrupt_txdone, so recheck
* here again if status reading is needed.
*/
if (rt2800usb_txstatus_pending(rt2x00dev) &&
!test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags))
return true;
else
return false;
}
static void rt2800usb_async_read_tx_status(struct rt2x00_dev *rt2x00dev)
{
if (test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags))
return;
/* Read TX_STA_FIFO register after 500 us */
hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 500000),
HRTIMER_MODE_REL);
}
static void rt2800usb_tx_dma_done(struct queue_entry *entry)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
rt2800usb_async_read_tx_status(rt2x00dev);
}
static enum hrtimer_restart rt2800usb_tx_sta_fifo_timeout(struct hrtimer *timer)
{
struct rt2x00_dev *rt2x00dev =
container_of(timer, struct rt2x00_dev, txstatus_timer);
rt2x00usb_register_read_async(rt2x00dev, TX_STA_FIFO,
rt2800usb_tx_sta_fifo_read_completed);
return HRTIMER_NORESTART;
}
/*
* Firmware functions
*/
static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev)
{
return FIRMWARE_RT2870;
}
static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
int status;
u32 offset;
u32 length;
/*
* Check which section of the firmware we need.
*/
if (rt2x00_rt(rt2x00dev, RT2860) ||
rt2x00_rt(rt2x00dev, RT2872) ||
rt2x00_rt(rt2x00dev, RT3070)) {
offset = 0;
length = 4096;
} else {
offset = 4096;
length = 4096;
}
/*
* Write firmware to device.
*/
rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
data + offset, length);
rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
/*
* Send firmware request to device to load firmware,
* we need to specify a long timeout time.
*/
status = rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE,
0, USB_MODE_FIRMWARE,
REGISTER_TIMEOUT_FIRMWARE);
if (status < 0) {
ERROR(rt2x00dev, "Failed to write Firmware to device.\n");
return status;
}
msleep(10);
rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
return 0;
}
/*
* Device state switch handlers.
*/
static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
/*
* Wait until BBP and RF are ready.
*/
if (rt2800_wait_csr_ready(rt2x00dev))
return -EBUSY;
rt2x00usb_register_read(rt2x00dev, PBF_SYS_CTRL, ®);
rt2x00usb_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
reg = 0;
rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_CSR, 1);
rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_BBP, 1);
rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000);
rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
USB_MODE_RESET, REGISTER_TIMEOUT);
rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
return 0;
}
static int rt2800usb_enable_radio(struct rt2x00_dev *rt2x00dev)
{
u32 reg;
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev)))
return -EIO;
rt2x00usb_register_read(rt2x00dev, USB_DMA_CFG, ®);
rt2x00_set_field32(®, USB_DMA_CFG_PHY_CLEAR, 0);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_AGG_TIMEOUT, 128);
/*
* Total room for RX frames in kilobytes, PBF might still exceed
* this limit so reduce the number to prevent errors.
*/
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_AGG_LIMIT,
((rt2x00dev->ops->rx->entry_num * DATA_FRAME_SIZE)
/ 1024) - 3);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_EN, 1);
rt2x00_set_field32(®, USB_DMA_CFG_TX_BULK_EN, 1);
rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, reg);
return rt2800_enable_radio(rt2x00dev);
}
static void rt2800usb_disable_radio(struct rt2x00_dev *rt2x00dev)
{
rt2800_disable_radio(rt2x00dev);
rt2x00usb_disable_radio(rt2x00dev);
}
static int rt2800usb_set_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
if (state == STATE_AWAKE)
rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, 0xff, 0, 2);
else
rt2800_mcu_request(rt2x00dev, MCU_SLEEP, 0xff, 0xff, 2);
return 0;
}
static int rt2800usb_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.
*/
rt2800usb_set_state(rt2x00dev, STATE_AWAKE);
msleep(1);
retval = rt2800usb_enable_radio(rt2x00dev);
break;
case STATE_RADIO_OFF:
/*
* After the radio has been disabled, the device should
* be put to sleep for powersaving.
*/
rt2800usb_disable_radio(rt2x00dev);
rt2800usb_set_state(rt2x00dev, STATE_SLEEP);
break;
case STATE_RADIO_IRQ_ON:
case STATE_RADIO_IRQ_OFF:
/* No support, but no error either */
break;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
case STATE_STANDBY:
case STATE_AWAKE:
retval = rt2800usb_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;
}
/*
* Watchdog handlers
*/
static void rt2800usb_watchdog(struct rt2x00_dev *rt2x00dev)
{
unsigned int i;
u32 reg;
rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, ®);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q)) {
WARNING(rt2x00dev, "TX HW queue 0 timed out,"
" invoke forced kick\n");
rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40012);
for (i = 0; i < 10; i++) {
udelay(10);
if (!rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q))
break;
}
rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
}
rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, ®);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q)) {
WARNING(rt2x00dev, "TX HW queue 1 timed out,"
" invoke forced kick\n");
rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf4000a);
for (i = 0; i < 10; i++) {
udelay(10);
if (!rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q))
break;
}
rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
}
rt2x00usb_watchdog(rt2x00dev);
}
/*
* TX descriptor initialization
*/
static __le32 *rt2800usb_get_txwi(struct queue_entry *entry)
{
if (entry->queue->qid == QID_BEACON)
return (__le32 *) (entry->skb->data);
else
return (__le32 *) (entry->skb->data + TXINFO_DESC_SIZE);
}
static void rt2800usb_write_tx_desc(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *txi = (__le32 *) entry->skb->data;
u32 word;
/*
* Initialize TXINFO descriptor
*/
rt2x00_desc_read(txi, 0, &word);
/*
* The size of TXINFO_W0_USB_DMA_TX_PKT_LEN is
* TXWI + 802.11 header + L2 pad + payload + pad,
* so need to decrease size of TXINFO.
*/
rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN,
roundup(entry->skb->len, 4) - TXINFO_DESC_SIZE);
rt2x00_set_field32(&word, TXINFO_W0_WIV,
!test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
rt2x00_set_field32(&word, TXINFO_W0_QSEL, 2);
rt2x00_set_field32(&word, TXINFO_W0_SW_USE_LAST_ROUND, 0);
rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_NEXT_VALID, 0);
rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_BURST,
test_bit(ENTRY_TXD_BURST, &txdesc->flags));
rt2x00_desc_write(txi, 0, word);
/*
* Register descriptor details in skb frame descriptor.
*/
skbdesc->flags |= SKBDESC_DESC_IN_SKB;
skbdesc->desc = txi;
skbdesc->desc_len = TXINFO_DESC_SIZE + TXWI_DESC_SIZE;
}
/*
* TX data initialization
*/
static int rt2800usb_get_tx_data_len(struct queue_entry *entry)
{
/*
* pad(1~3 bytes) is needed after each 802.11 payload.
* USB end pad(4 bytes) is needed at each USB bulk out packet end.
* TX frame format is :
* | TXINFO | TXWI | 802.11 header | L2 pad | payload | pad | USB end pad |
* |<------------- tx_pkt_len ------------->|
*/
return roundup(entry->skb->len, 4) + 4;
}
/*
* TX control handlers
*/
static enum txdone_entry_desc_flags
rt2800usb_txdone_entry_check(struct queue_entry *entry, u32 reg)
{
__le32 *txwi;
u32 word;
int wcid, ack, pid;
int tx_wcid, tx_ack, tx_pid, is_agg;
/*
* This frames has returned with an IO error,
* so the status report is not intended for this
* frame.
*/
if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
return TXDONE_FAILURE;
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);
is_agg = rt2x00_get_field32(reg, TX_STA_FIFO_TX_AGGRE);
/*
* Validate if this TX status report is intended for
* this entry by comparing the WCID/ACK/PID fields.
*/
txwi = rt2800usb_get_txwi(entry);
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 || (!is_agg && pid != tx_pid)) {
WARNING(entry->queue->rt2x00dev,
"TX status report missed for queue %d entry %d\n",
entry->queue->qid, entry->entry_idx);
return TXDONE_UNKNOWN;
}
return TXDONE_SUCCESS;
}
static void rt2800usb_txdone(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
struct queue_entry *entry;
u32 reg;
u8 qid;
enum txdone_entry_desc_flags done_status;
while (kfifo_get(&rt2x00dev->txstatus_fifo, ®)) {
/*
* TX_STA_FIFO_PID_QUEUE is a 2-bit field, thus qid is
* guaranteed to be one of the TX QIDs .
*/
qid = rt2x00_get_field32(reg, TX_STA_FIFO_PID_QUEUE);
queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
if (unlikely(rt2x00queue_empty(queue))) {
WARNING(rt2x00dev, "Got TX status for an empty "
"queue %u, dropping\n", qid);
break;
}
entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
if (unlikely(test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
!test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))) {
WARNING(rt2x00dev, "Data pending for entry %u "
"in queue %u\n", entry->entry_idx, qid);
break;
}
done_status = rt2800usb_txdone_entry_check(entry, reg);
if (likely(done_status == TXDONE_SUCCESS))
rt2800_txdone_entry(entry, reg, rt2800usb_get_txwi(entry));
else
rt2x00lib_txdone_noinfo(entry, done_status);
}
}
static void rt2800usb_txdone_nostatus(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue;
struct queue_entry *entry;
/*
* Process any trailing TX status reports for IO failures,
* we loop until we find the first non-IO error entry. This
* can either be a frame which is free, is being uploaded,
* or has completed the upload but didn't have an entry
* in the TX_STAT_FIFO register yet.
*/
tx_queue_for_each(rt2x00dev, queue) {
while (!rt2x00queue_empty(queue)) {
entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
!test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
break;
if (test_bit(ENTRY_DATA_IO_FAILED, &entry->flags))
rt2x00lib_txdone_noinfo(entry, TXDONE_FAILURE);
else if (rt2800usb_entry_txstatus_timeout(entry))
rt2x00lib_txdone_noinfo(entry, TXDONE_UNKNOWN);
else
break;
}
}
}
static void rt2800usb_work_txdone(struct work_struct *work)
{
struct rt2x00_dev *rt2x00dev =
container_of(work, struct rt2x00_dev, txdone_work);
while (!kfifo_is_empty(&rt2x00dev->txstatus_fifo) ||
rt2800usb_txstatus_timeout(rt2x00dev)) {
rt2800usb_txdone(rt2x00dev);
rt2800usb_txdone_nostatus(rt2x00dev);
/*
* The hw may delay sending the packet after DMA complete
* if the medium is busy, thus the TX_STA_FIFO entry is
* also delayed -> use a timer to retrieve it.
*/
if (rt2800usb_txstatus_pending(rt2x00dev))
rt2800usb_async_read_tx_status(rt2x00dev);
}
}
/*
* RX control handlers
*/
static void rt2800usb_fill_rxdone(struct queue_entry *entry,
struct rxdone_entry_desc *rxdesc)
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *rxi = (__le32 *)entry->skb->data;
__le32 *rxd;
u32 word;
int rx_pkt_len;
/*
* Copy descriptor to the skbdesc->desc buffer, making it safe from
* moving of frame data in rt2x00usb.
*/
memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
/*
* RX frame format is :
* | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
* |<------------ rx_pkt_len -------------->|
*/
rt2x00_desc_read(rxi, 0, &word);
rx_pkt_len = rt2x00_get_field32(word, RXINFO_W0_USB_DMA_RX_PKT_LEN);
/*
* Remove the RXINFO structure from the sbk.
*/
skb_pull(entry->skb, RXINFO_DESC_SIZE);
/*
* FIXME: we need to check for rx_pkt_len validity
*/
rxd = (__le32 *)(entry->skb->data + rx_pkt_len);
/*
* It is now safe to read the descriptor on all architectures.
*/
rt2x00_desc_read(rxd, 0, &word);
if (rt2x00_get_field32(word, RXD_W0_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W0_CIPHER_ERROR);
if (rt2x00_get_field32(word, RXD_W0_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;
/*
* The hardware has already checked the Michael Mic and has
* stripped it from the frame. Signal this to mac80211.
*/
rxdesc->flags |= RX_FLAG_MMIC_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(word, RXD_W0_MY_BSS))
rxdesc->dev_flags |= RXDONE_MY_BSS;
if (rt2x00_get_field32(word, RXD_W0_L2PAD))
rxdesc->dev_flags |= RXDONE_L2PAD;
/*
* Remove RXD descriptor from end of buffer.
*/
skb_trim(entry->skb, rx_pkt_len);
/*
* Process the RXWI structure.
*/
rt2800_process_rxwi(entry, rxdesc);
}
/*
* Device probe functions.
*/
static int rt2800usb_validate_eeprom(struct rt2x00_dev *rt2x00dev)
{
if (rt2800_efuse_detect(rt2x00dev))
rt2800_read_eeprom_efuse(rt2x00dev);
else
rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,
EEPROM_SIZE);
return rt2800_validate_eeprom(rt2x00dev);
}
static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
/*
* Allocate eeprom data.
*/
retval = rt2800usb_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(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags);
__set_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags);
/*
* This device requires firmware.
*/
__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_L2PAD, &rt2x00dev->cap_flags);
if (!modparam_nohwcrypt)
__set_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags);
__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_HT_TX_DESC, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_TXSTATUS_FIFO, &rt2x00dev->cap_flags);
__set_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags);
rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout,
/*
* Set the rssi offset.
*/
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
/*
* Overwrite TX done handler
*/
PREPARE_WORK(&rt2x00dev->txdone_work, rt2800usb_work_txdone);
return 0;
}
static const struct ieee80211_ops rt2800usb_mac80211_ops = {
.tx = rt2x00mac_tx,
.start = rt2x00mac_start,
.stop = rt2x00mac_stop,
.add_interface = rt2x00mac_add_interface,
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
.set_tim = rt2x00mac_set_tim,
.set_key = rt2x00mac_set_key,
.sw_scan_start = rt2x00mac_sw_scan_start,
.sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.get_tkip_seq = rt2800_get_tkip_seq,
.set_rts_threshold = rt2800_set_rts_threshold,
.sta_add = rt2x00mac_sta_add,
.sta_remove = rt2x00mac_sta_remove,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2800_conf_tx,
.get_tsf = rt2800_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
.ampdu_action = rt2800_ampdu_action,
.flush = rt2x00mac_flush,
.get_survey = rt2800_get_survey,
.get_ringparam = rt2x00mac_get_ringparam,
.tx_frames_pending = rt2x00mac_tx_frames_pending,
};
static const struct rt2800_ops rt2800usb_rt2800_ops = {
.register_read = rt2x00usb_register_read,
.register_read_lock = rt2x00usb_register_read_lock,
.register_write = rt2x00usb_register_write,
.register_write_lock = rt2x00usb_register_write_lock,
.register_multiread = rt2x00usb_register_multiread,
.register_multiwrite = rt2x00usb_register_multiwrite,
.regbusy_read = rt2x00usb_regbusy_read,
.drv_write_firmware = rt2800usb_write_firmware,
.drv_init_registers = rt2800usb_init_registers,
.drv_get_txwi = rt2800usb_get_txwi,
};
static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
.probe_hw = rt2800usb_probe_hw,
.get_firmware_name = rt2800usb_get_firmware_name,
.check_firmware = rt2800_check_firmware,
.load_firmware = rt2800_load_firmware,
.initialize = rt2x00usb_initialize,
.uninitialize = rt2x00usb_uninitialize,
.clear_entry = rt2x00usb_clear_entry,
.set_device_state = rt2800usb_set_device_state,
.rfkill_poll = rt2800_rfkill_poll,
.link_stats = rt2800_link_stats,
.reset_tuner = rt2800_reset_tuner,
.link_tuner = rt2800_link_tuner,
.gain_calibration = rt2800_gain_calibration,
.vco_calibration = rt2800_vco_calibration,
.watchdog = rt2800usb_watchdog,
.start_queue = rt2800usb_start_queue,
.kick_queue = rt2x00usb_kick_queue,
.stop_queue = rt2800usb_stop_queue,
.flush_queue = rt2x00usb_flush_queue,
.tx_dma_done = rt2800usb_tx_dma_done,
.write_tx_desc = rt2800usb_write_tx_desc,
.write_tx_data = rt2800_write_tx_data,
.write_beacon = rt2800_write_beacon,
.clear_beacon = rt2800_clear_beacon,
.get_tx_data_len = rt2800usb_get_tx_data_len,
.fill_rxdone = rt2800usb_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,
.sta_add = rt2800_sta_add,
.sta_remove = rt2800_sta_remove,
};
static const struct data_queue_desc rt2800usb_queue_rx = {
.entry_num = 128,
.data_size = AGGREGATION_SIZE,
.desc_size = RXINFO_DESC_SIZE + RXWI_DESC_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb),
};
static const struct data_queue_desc rt2800usb_queue_tx = {
.entry_num = 16,
.data_size = AGGREGATION_SIZE,
.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb),
};
static const struct data_queue_desc rt2800usb_queue_bcn = {
.entry_num = 8,
.data_size = MGMT_FRAME_SIZE,
.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
.priv_size = sizeof(struct queue_entry_priv_usb),
};
static const struct rt2x00_ops rt2800usb_ops = {
.name = KBUILD_MODNAME,
.drv_data_size = sizeof(struct rt2800_drv_data),
.max_sta_intf = 1,
.max_ap_intf = 8,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.extra_tx_headroom = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
.rx = &rt2800usb_queue_rx,
.tx = &rt2800usb_queue_tx,
.bcn = &rt2800usb_queue_bcn,
.lib = &rt2800usb_rt2x00_ops,
.drv = &rt2800usb_rt2800_ops,
.hw = &rt2800usb_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2800_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};
/*
* rt2800usb module information.
*/
static struct usb_device_id rt2800usb_device_table[] = {
/* Abocom */
{ USB_DEVICE(0x07b8, 0x2870) },
{ USB_DEVICE(0x07b8, 0x2770) },
{ USB_DEVICE(0x07b8, 0x3070) },
{ USB_DEVICE(0x07b8, 0x3071) },
{ USB_DEVICE(0x07b8, 0x3072) },
{ USB_DEVICE(0x1482, 0x3c09) },
/* AirTies */
{ USB_DEVICE(0x1eda, 0x2012) },
{ USB_DEVICE(0x1eda, 0x2210) },
{ USB_DEVICE(0x1eda, 0x2310) },
/* Allwin */
{ USB_DEVICE(0x8516, 0x2070) },
{ USB_DEVICE(0x8516, 0x2770) },
{ USB_DEVICE(0x8516, 0x2870) },
{ USB_DEVICE(0x8516, 0x3070) },
{ USB_DEVICE(0x8516, 0x3071) },
{ USB_DEVICE(0x8516, 0x3072) },
/* Alpha Networks */
{ USB_DEVICE(0x14b2, 0x3c06) },
{ USB_DEVICE(0x14b2, 0x3c07) },
{ USB_DEVICE(0x14b2, 0x3c09) },
{ USB_DEVICE(0x14b2, 0x3c12) },
{ USB_DEVICE(0x14b2, 0x3c23) },
{ USB_DEVICE(0x14b2, 0x3c25) },
{ USB_DEVICE(0x14b2, 0x3c27) },
{ USB_DEVICE(0x14b2, 0x3c28) },
{ USB_DEVICE(0x14b2, 0x3c2c) },
/* Amit */
{ USB_DEVICE(0x15c5, 0x0008) },
/* Askey */
{ USB_DEVICE(0x1690, 0x0740) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x1731) },
{ USB_DEVICE(0x0b05, 0x1732) },
{ USB_DEVICE(0x0b05, 0x1742) },
{ USB_DEVICE(0x0b05, 0x1784) },
{ USB_DEVICE(0x1761, 0x0b05) },
/* AzureWave */
{ USB_DEVICE(0x13d3, 0x3247) },
{ USB_DEVICE(0x13d3, 0x3273) },
{ USB_DEVICE(0x13d3, 0x3305) },
{ USB_DEVICE(0x13d3, 0x3307) },
{ USB_DEVICE(0x13d3, 0x3321) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x8053) },
{ USB_DEVICE(0x050d, 0x805c) },
{ USB_DEVICE(0x050d, 0x815c) },
{ USB_DEVICE(0x050d, 0x825a) },
{ USB_DEVICE(0x050d, 0x825b) },
{ USB_DEVICE(0x050d, 0x935a) },
{ USB_DEVICE(0x050d, 0x935b) },
/* Buffalo */
{ USB_DEVICE(0x0411, 0x00e8) },
{ USB_DEVICE(0x0411, 0x0158) },
{ USB_DEVICE(0x0411, 0x015d) },
{ USB_DEVICE(0x0411, 0x016f) },
{ USB_DEVICE(0x0411, 0x01a2) },
/* Corega */
{ USB_DEVICE(0x07aa, 0x002f) },
{ USB_DEVICE(0x07aa, 0x003c) },
{ USB_DEVICE(0x07aa, 0x003f) },
{ USB_DEVICE(0x18c5, 0x0012) },
/* D-Link */
{ USB_DEVICE(0x07d1, 0x3c09) },
{ USB_DEVICE(0x07d1, 0x3c0a) },
{ USB_DEVICE(0x07d1, 0x3c0d) },
{ USB_DEVICE(0x07d1, 0x3c0e) },
{ USB_DEVICE(0x07d1, 0x3c0f) },
{ USB_DEVICE(0x07d1, 0x3c11) },
{ USB_DEVICE(0x07d1, 0x3c13) },
{ USB_DEVICE(0x07d1, 0x3c15) },
{ USB_DEVICE(0x07d1, 0x3c16) },
{ USB_DEVICE(0x2001, 0x3c1b) },
/* Draytek */
{ USB_DEVICE(0x07fa, 0x7712) },
/* DVICO */
{ USB_DEVICE(0x0fe9, 0xb307) },
/* Edimax */
{ USB_DEVICE(0x7392, 0x4085) },
{ USB_DEVICE(0x7392, 0x7711) },
{ USB_DEVICE(0x7392, 0x7717) },
{ USB_DEVICE(0x7392, 0x7718) },
{ USB_DEVICE(0x7392, 0x7722) },
/* Encore */