OpenCloudOS-Kernel/drivers/net/wireless/rt2x00/rt2800usb.c

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/*
Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
Copyright (C) 2009 Axel Kollhofer <rain_maker@root-forum.org>
<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.");
static bool rt2800usb_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
{
return modparam_nohwcrypt;
}
/*
* 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, &reg);
rt2x00_set_field32(&reg, 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, &reg);
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);
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, &reg);
rt2x00_set_field32(&reg, 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, &reg);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
rt2x00_set_field32(&reg, 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))
rt2x00_warn(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) {
rt2x00_warn(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))
rt2x00_warn(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) {
rt2x00_err(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, &reg);
rt2x00usb_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
reg = 0;
rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
rt2x00_set_field32(&reg, 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, &reg);
rt2x00_set_field32(&reg, USB_DMA_CFG_PHY_CLEAR, 0);
rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
rt2x00_set_field32(&reg, 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(&reg, USB_DMA_CFG_RX_BULK_AGG_LIMIT,
((rt2x00dev->rx->limit * DATA_FRAME_SIZE)
/ 1024) - 3);
rt2x00_set_field32(&reg, USB_DMA_CFG_RX_BULK_EN, 1);
rt2x00_set_field32(&reg, 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))
rt2x00_err(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, &reg);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q)) {
rt2x00_warn(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, &reg);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q)) {
rt2x00_warn(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 + entry->queue->winfo_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)) {
rt2x00_dbg(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, &reg)) {
/*
* 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))) {
rt2x00_warn(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))) {
rt2x00_warn(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);
rt2x00: fix crash in rt2800usb_write_tx_desc Patch should fix this oops: BUG: unable to handle kernel NULL pointer dereference at 000000a0 IP: [<f8e06078>] rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] *pdpt = 000000002408c001 *pde = 0000000024079067 *pte = 0000000000000000 Oops: 0000 [#1] SMP EIP: 0060:[<f8e06078>] EFLAGS: 00010282 CPU: 0 EIP is at rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] EAX: 00000035 EBX: ef2bef10 ECX: 00000000 EDX: d40958a0 ESI: ef1865f8 EDI: ef1865f8 EBP: d4095878 ESP: d409585c DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Call Trace: [<f8da5e85>] rt2x00queue_write_tx_frame+0x155/0x300 [rt2x00lib] [<f8da424c>] rt2x00mac_tx+0x7c/0x370 [rt2x00lib] [<c04882b2>] ? mark_held_locks+0x62/0x90 [<c081f645>] ? _raw_spin_unlock_irqrestore+0x35/0x60 [<c04884ba>] ? trace_hardirqs_on_caller+0x5a/0x170 [<c04885db>] ? trace_hardirqs_on+0xb/0x10 [<f8d618ac>] __ieee80211_tx+0x5c/0x1e0 [mac80211] [<f8d631fc>] ieee80211_tx+0xbc/0xe0 [mac80211] [<f8d63163>] ? ieee80211_tx+0x23/0xe0 [mac80211] [<f8d632e1>] ieee80211_xmit+0xc1/0x200 [mac80211] [<f8d63220>] ? ieee80211_tx+0xe0/0xe0 [mac80211] [<c0487d45>] ? lock_release_holdtime+0x35/0x1b0 [<f8d63986>] ? ieee80211_subif_start_xmit+0x446/0x5f0 [mac80211] [<f8d637dd>] ieee80211_subif_start_xmit+0x29d/0x5f0 [mac80211] [<f8d63924>] ? ieee80211_subif_start_xmit+0x3e4/0x5f0 [mac80211] [<c0760188>] ? sock_setsockopt+0x6a8/0x6f0 [<c0760000>] ? sock_setsockopt+0x520/0x6f0 [<c076daef>] dev_hard_start_xmit+0x2ef/0x650 Oops might happen because we perform parallel putting new entries in a queue (rt2x00queue_write_tx_frame()) and removing entries after finishing transmitting (rt2800usb_work_txdone()). There are cases when _txdone may process an entry that was not fully send and nullify entry->skb . To fix check in _txdone if entry has flags that indicate pending transmission and wait until flags get cleared. Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com> Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-10 21:32:22 +08:00
if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
!test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
break;
rt2x00: fix crash in rt2800usb_write_tx_desc Patch should fix this oops: BUG: unable to handle kernel NULL pointer dereference at 000000a0 IP: [<f8e06078>] rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] *pdpt = 000000002408c001 *pde = 0000000024079067 *pte = 0000000000000000 Oops: 0000 [#1] SMP EIP: 0060:[<f8e06078>] EFLAGS: 00010282 CPU: 0 EIP is at rt2800usb_write_tx_desc+0x18/0xc0 [rt2800usb] EAX: 00000035 EBX: ef2bef10 ECX: 00000000 EDX: d40958a0 ESI: ef1865f8 EDI: ef1865f8 EBP: d4095878 ESP: d409585c DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Call Trace: [<f8da5e85>] rt2x00queue_write_tx_frame+0x155/0x300 [rt2x00lib] [<f8da424c>] rt2x00mac_tx+0x7c/0x370 [rt2x00lib] [<c04882b2>] ? mark_held_locks+0x62/0x90 [<c081f645>] ? _raw_spin_unlock_irqrestore+0x35/0x60 [<c04884ba>] ? trace_hardirqs_on_caller+0x5a/0x170 [<c04885db>] ? trace_hardirqs_on+0xb/0x10 [<f8d618ac>] __ieee80211_tx+0x5c/0x1e0 [mac80211] [<f8d631fc>] ieee80211_tx+0xbc/0xe0 [mac80211] [<f8d63163>] ? ieee80211_tx+0x23/0xe0 [mac80211] [<f8d632e1>] ieee80211_xmit+0xc1/0x200 [mac80211] [<f8d63220>] ? ieee80211_tx+0xe0/0xe0 [mac80211] [<c0487d45>] ? lock_release_holdtime+0x35/0x1b0 [<f8d63986>] ? ieee80211_subif_start_xmit+0x446/0x5f0 [mac80211] [<f8d637dd>] ieee80211_subif_start_xmit+0x29d/0x5f0 [mac80211] [<f8d63924>] ? ieee80211_subif_start_xmit+0x3e4/0x5f0 [mac80211] [<c0760188>] ? sock_setsockopt+0x6a8/0x6f0 [<c0760000>] ? sock_setsockopt+0x520/0x6f0 [<c076daef>] dev_hard_start_xmit+0x2ef/0x650 Oops might happen because we perform parallel putting new entries in a queue (rt2x00queue_write_tx_frame()) and removing entries after finishing transmitting (rt2800usb_work_txdone()). There are cases when _txdone may process an entry that was not fully send and nullify entry->skb . To fix check in _txdone if entry has flags that indicate pending transmission and wait until flags get cleared. Reported-by: Justin Piszcz <jpiszcz@lucidpixels.com> Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-10 21:32:22 +08:00
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);
/*
* Check for rx_pkt_len validity. Return if invalid, leaving
* rxdesc->size zeroed out by the upper level.
*/
if (unlikely(rx_pkt_len == 0 ||
rx_pkt_len > entry->queue->data_size)) {
rt2x00_err(entry->queue->rt2x00dev,
"Bad frame size %d, forcing to 0\n", rx_pkt_len);
return;
}
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_read_eeprom(struct rt2x00_dev *rt2x00dev)
{
int retval;
if (rt2800_efuse_detect(rt2x00dev))
retval = rt2800_read_eeprom_efuse(rt2x00dev);
else
retval = rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom,
EEPROM_SIZE);
return retval;
}
static int rt2800usb_probe_hw(struct rt2x00_dev *rt2x00dev)
{
int retval;
retval = rt2800_probe_hw(rt2x00dev);
if (retval)
return retval;
/*
* Set txstatus timer function.
*/
rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout;
/*
* 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,
.read_eeprom = rt2800usb_read_eeprom,
.hwcrypt_disabled = rt2800usb_hwcrypt_disabled,
.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,
rt2x00: Refactor beacon code to make use of start- and stop_queue This patch allows to dynamically remove beaconing interfaces without shutting beaconing down on all interfaces. The only place to start and stop beaconing are now the start- and stop_queue callbacks. Hence, we can remove some register writes during interface bring up (config_intf) and only write the correct sync mode to the register there. When multiple beaconing interfaces are present we should enable beaconing as soon as mac80211 enables beaconing on at least one of them. The beacon queue gets stopped when the last beaconing interface was stopped by mac80211. Therefore, introduce another interface counter to keep track ot the number of enabled beaconing interfaces and start or stop the beacon queue accordingly. To allow single interfaces to stop beaconing, add a new driver callback clear_beacon to clear a single interface's beacon without affecting the other interfaces. Don't overload the clear_entry callback for clearing beacons as that would introduce additional overhead (check for each TX queue) into the clear_entry callback which is used on the drivers TX/RX hotpaths. Furthermore, the write beacon callback doesn't need to enable beaconing anymore but since beaconing should be disabled while a new beacon is written or cleared we still disable beacon generation and enable it afterwards again in the driver specific callbacks. However, beacon related interrupts should not be disabled/enabled here, that's solely done from the start- and stop queue callbacks. It would be nice to stop the beacon queue just before the beacon update and enable it afterwards in rt2x00queue itself instead of the current implementation that relies on the driver doing the right thing. However, since start- and stop_queue are mutex protected we cannot use them for atomic beacon updates. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-01-30 20:16:03 +08:00
.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 void rt2800usb_queue_init(struct data_queue *queue)
{
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
unsigned short txwi_size, rxwi_size;
rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
switch (queue->qid) {
case QID_RX:
queue->limit = 128;
queue->data_size = AGGREGATION_SIZE;
queue->desc_size = RXINFO_DESC_SIZE;
queue->winfo_size = rxwi_size;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_AC_VO:
case QID_AC_VI:
case QID_AC_BE:
case QID_AC_BK:
queue->limit = 16;
queue->data_size = AGGREGATION_SIZE;
queue->desc_size = TXINFO_DESC_SIZE;
queue->winfo_size = txwi_size;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_BEACON:
queue->limit = 8;
queue->data_size = MGMT_FRAME_SIZE;
queue->desc_size = TXINFO_DESC_SIZE;
queue->winfo_size = txwi_size;
queue->priv_size = sizeof(struct queue_entry_priv_usb);
break;
case QID_ATIM:
/* fallthrough */
default:
BUG();
break;
}
}
static const struct rt2x00_ops rt2800usb_ops = {
.name = KBUILD_MODNAME,
.drv_data_size = sizeof(struct rt2800_drv_data),
.max_ap_intf = 8,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.queue_init = rt2800usb_queue_init,
.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) },
{ USB_DEVICE(0x0411, 0x01ee) },
{ USB_DEVICE(0x0411, 0x01a8) },
/* 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(0x07d1, 0x3c17) },
{ 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 */
{ USB_DEVICE(0x203d, 0x1480) },
{ USB_DEVICE(0x203d, 0x14a9) },
/* EnGenius */
{ USB_DEVICE(0x1740, 0x9701) },
{ USB_DEVICE(0x1740, 0x9702) },
{ USB_DEVICE(0x1740, 0x9703) },
{ USB_DEVICE(0x1740, 0x9705) },
{ USB_DEVICE(0x1740, 0x9706) },
{ USB_DEVICE(0x1740, 0x9707) },
{ USB_DEVICE(0x1740, 0x9708) },
{ USB_DEVICE(0x1740, 0x9709) },
/* Gemtek */
{ USB_DEVICE(0x15a9, 0x0012) },
/* Gigabyte */
{ USB_DEVICE(0x1044, 0x800b) },
{ USB_DEVICE(0x1044, 0x800d) },
/* Hawking */
{ USB_DEVICE(0x0e66, 0x0001) },
{ USB_DEVICE(0x0e66, 0x0003) },
{ USB_DEVICE(0x0e66, 0x0009) },
{ USB_DEVICE(0x0e66, 0x000b) },
{ USB_DEVICE(0x0e66, 0x0013) },
{ USB_DEVICE(0x0e66, 0x0017) },
{ USB_DEVICE(0x0e66, 0x0018) },
/* I-O DATA */
{ USB_DEVICE(0x04bb, 0x0945) },
{ USB_DEVICE(0x04bb, 0x0947) },
{ USB_DEVICE(0x04bb, 0x0948) },
/* Linksys */
{ USB_DEVICE(0x13b1, 0x0031) },
{ USB_DEVICE(0x1737, 0x0070) },
{ USB_DEVICE(0x1737, 0x0071) },
{ USB_DEVICE(0x1737, 0x0077) },
{ USB_DEVICE(0x1737, 0x0078) },
/* Logitec */
{ USB_DEVICE(0x0789, 0x0162) },
{ USB_DEVICE(0x0789, 0x0163) },
{ USB_DEVICE(0x0789, 0x0164) },
{ USB_DEVICE(0x0789, 0x0166) },
/* Motorola */
{ USB_DEVICE(0x100d, 0x9031) },
/* MSI */
{ USB_DEVICE(0x0db0, 0x3820) },
{ USB_DEVICE(0x0db0, 0x3821) },
{ USB_DEVICE(0x0db0, 0x3822) },
{ USB_DEVICE(0x0db0, 0x3870) },
{ USB_DEVICE(0x0db0, 0x3871) },
{ USB_DEVICE(0x0db0, 0x6899) },
{ USB_DEVICE(0x0db0, 0x821a) },
{ USB_DEVICE(0x0db0, 0x822a) },
{ USB_DEVICE(0x0db0, 0x822b) },
{ USB_DEVICE(0x0db0, 0x822c) },
{ USB_DEVICE(0x0db0, 0x870a) },
{ USB_DEVICE(0x0db0, 0x871a) },
{ USB_DEVICE(0x0db0, 0x871b) },
{ USB_DEVICE(0x0db0, 0x871c) },
{ USB_DEVICE(0x0db0, 0x899a) },
/* Ovislink */
{ USB_DEVICE(0x1b75, 0x3071) },
{ USB_DEVICE(0x1b75, 0x3072) },
wireless: rt2x00: rt2800usb: identify ids-chips Taken from ralink linux drivers: RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0B05,0x1784)}, /* Asus 3072 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x13D3,0x3305)}, /* AzureWave 3070*/ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x07D1,0x3C16)}, /* D-Link 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x203D,0x14A9)}, /* Encore 3070*/ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x1740,0x9707)}, /* EnGenius 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x1740,0x9708)}, /* EnGenius 3071 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x1740,0x9709)}, /* EnGenius 3072 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x04BB,0x0947)}, /* I-O DATA 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x04BB,0x0948)}, /* I-O DATA 3072 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x3822)}, /* MSI 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x3821)}, /* Ralink 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x3870)}, /* MSI 3070*/ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x3871)}, /* MSI 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x821A)}, /* Ralink 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x822A)}, /* MSI 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x870A)}, /* MSI 3070*/ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x871A)}, /* MSI 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DB0,0x899A)}, /* MSI 3070*/ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x20B8,0x8888)}, /* PARA INDUSTRIAL 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DF6,0x0048)}, /* Sitecom 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x0DF6,0x0047)}, /* Sitecom 3071 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x083A,0xA701)}, /* SMC 3070 */ RT3070_LinuxSTA_V2.3.0.1_20100208/common/rtusb_dev_id.c: {USB_DEVICE(0x083A,0xA702)}, /* SMC 3072 */ Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-28 21:52:43 +08:00
/* Para */
{ USB_DEVICE(0x20b8, 0x8888) },
/* Pegatron */
{ USB_DEVICE(0x1d4d, 0x0002) },
{ USB_DEVICE(0x1d4d, 0x000c) },
{ USB_DEVICE(0x1d4d, 0x000e) },
{ USB_DEVICE(0x1d4d, 0x0011) },
/* Philips */
{ USB_DEVICE(0x0471, 0x200f) },
/* Planex */
{ USB_DEVICE(0x2019, 0x5201) },
{ USB_DEVICE(0x2019, 0xab25) },
{ USB_DEVICE(0x2019, 0xed06) },
/* Quanta */
{ USB_DEVICE(0x1a32, 0x0304) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x2070) },
{ USB_DEVICE(0x148f, 0x2770) },
{ USB_DEVICE(0x148f, 0x2870) },
{ USB_DEVICE(0x148f, 0x3070) },
{ USB_DEVICE(0x148f, 0x3071) },
{ USB_DEVICE(0x148f, 0x3072) },
/* Samsung */
{ USB_DEVICE(0x04e8, 0x2018) },
/* Siemens */
{ USB_DEVICE(0x129b, 0x1828) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0017) },
{ USB_DEVICE(0x0df6, 0x002b) },
{ USB_DEVICE(0x0df6, 0x002c) },
{ USB_DEVICE(0x0df6, 0x002d) },
{ USB_DEVICE(0x0df6, 0x0039) },
{ USB_DEVICE(0x0df6, 0x003b) },
{ USB_DEVICE(0x0df6, 0x003d) },
{ USB_DEVICE(0x0df6, 0x003e) },
{ USB_DEVICE(0x0df6, 0x003f) },
{ USB_DEVICE(0x0df6, 0x0040) },
{ USB_DEVICE(0x0df6, 0x0042) },
{ USB_DEVICE(0x0df6, 0x0047) },
{ USB_DEVICE(0x0df6, 0x0048) },
{ USB_DEVICE(0x0df6, 0x0051) },
{ USB_DEVICE(0x0df6, 0x005f) },
{ USB_DEVICE(0x0df6, 0x0060) },
/* SMC */
{ USB_DEVICE(0x083a, 0x6618) },
{ USB_DEVICE(0x083a, 0x7511) },
{ USB_DEVICE(0x083a, 0x7512) },
{ USB_DEVICE(0x083a, 0x7522) },
{ USB_DEVICE(0x083a, 0x8522) },
{ USB_DEVICE(0x083a, 0xa618) },
{ USB_DEVICE(0x083a, 0xa701) },
{ USB_DEVICE(0x083a, 0xa702) },
{ USB_DEVICE(0x083a, 0xa703) },
{ USB_DEVICE(0x083a, 0xb522) },
/* Sparklan */
{ USB_DEVICE(0x15a9, 0x0006) },
/* Sweex */
{ USB_DEVICE(0x177f, 0x0153) },
{ USB_DEVICE(0x177f, 0x0164) },
{ USB_DEVICE(0x177f, 0x0302) },
{ USB_DEVICE(0x177f, 0x0313) },
{ USB_DEVICE(0x177f, 0x0323) },
{ USB_DEVICE(0x177f, 0x0324) },
/* U-Media */
{ USB_DEVICE(0x157e, 0x300e) },
{ USB_DEVICE(0x157e, 0x3013) },
/* ZCOM */
{ USB_DEVICE(0x0cde, 0x0022) },
{ USB_DEVICE(0x0cde, 0x0025) },
/* Zinwell */
{ USB_DEVICE(0x5a57, 0x0280) },
{ USB_DEVICE(0x5a57, 0x0282) },
{ USB_DEVICE(0x5a57, 0x0283) },
{ USB_DEVICE(0x5a57, 0x5257) },
/* Zyxel */
{ USB_DEVICE(0x0586, 0x3416) },
{ USB_DEVICE(0x0586, 0x3418) },
{ USB_DEVICE(0x0586, 0x341a) },
{ USB_DEVICE(0x0586, 0x341e) },
{ USB_DEVICE(0x0586, 0x343e) },
#ifdef CONFIG_RT2800USB_RT33XX
/* Belkin */
{ USB_DEVICE(0x050d, 0x945b) },
/* D-Link */
{ USB_DEVICE(0x2001, 0x3c17) },
/* Panasonic */
{ USB_DEVICE(0x083a, 0xb511) },
/* Philips */
{ USB_DEVICE(0x0471, 0x20dd) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x3370) },
{ USB_DEVICE(0x148f, 0x8070) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0050) },
/* Sweex */
{ USB_DEVICE(0x177f, 0x0163) },
{ USB_DEVICE(0x177f, 0x0165) },
#endif
#ifdef CONFIG_RT2800USB_RT35XX
/* Allwin */
{ USB_DEVICE(0x8516, 0x3572) },
/* Askey */
{ USB_DEVICE(0x1690, 0x0744) },
{ USB_DEVICE(0x1690, 0x0761) },
{ USB_DEVICE(0x1690, 0x0764) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x179d) },
/* Cisco */
{ USB_DEVICE(0x167b, 0x4001) },
/* EnGenius */
{ USB_DEVICE(0x1740, 0x9801) },
/* I-O DATA */
{ USB_DEVICE(0x04bb, 0x0944) },
/* Linksys */
{ USB_DEVICE(0x13b1, 0x002f) },
{ USB_DEVICE(0x1737, 0x0079) },
/* Logitec */
{ USB_DEVICE(0x0789, 0x0170) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x3572) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0041) },
{ USB_DEVICE(0x0df6, 0x0062) },
{ USB_DEVICE(0x0df6, 0x0065) },
{ USB_DEVICE(0x0df6, 0x0066) },
{ USB_DEVICE(0x0df6, 0x0068) },
/* Toshiba */
{ USB_DEVICE(0x0930, 0x0a07) },
/* Zinwell */
{ USB_DEVICE(0x5a57, 0x0284) },
#endif
#ifdef CONFIG_RT2800USB_RT3573
/* AirLive */
{ USB_DEVICE(0x1b75, 0x7733) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x17bc) },
{ USB_DEVICE(0x0b05, 0x17ad) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x1103) },
/* Cameo */
{ USB_DEVICE(0x148f, 0xf301) },
/* D-Link */
{ USB_DEVICE(0x2001, 0x3c1f) },
/* Edimax */
{ USB_DEVICE(0x7392, 0x7733) },
/* Hawking */
{ USB_DEVICE(0x0e66, 0x0020) },
{ USB_DEVICE(0x0e66, 0x0021) },
/* I-O DATA */
{ USB_DEVICE(0x04bb, 0x094e) },
/* Linksys */
{ USB_DEVICE(0x13b1, 0x003b) },
/* Logitec */
{ USB_DEVICE(0x0789, 0x016b) },
/* NETGEAR */
{ USB_DEVICE(0x0846, 0x9012) },
{ USB_DEVICE(0x0846, 0x9013) },
{ USB_DEVICE(0x0846, 0x9019) },
/* Planex */
{ USB_DEVICE(0x2019, 0xed19) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x3573) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x0067) },
{ USB_DEVICE(0x0df6, 0x006a) },
{ USB_DEVICE(0x0df6, 0x006e) },
/* ZyXEL */
{ USB_DEVICE(0x0586, 0x3421) },
#endif
#ifdef CONFIG_RT2800USB_RT53XX
/* Arcadyan */
{ USB_DEVICE(0x043e, 0x7a12) },
{ USB_DEVICE(0x043e, 0x7a32) },
/* Azurewave */
{ USB_DEVICE(0x13d3, 0x3329) },
{ USB_DEVICE(0x13d3, 0x3365) },
/* D-Link */
{ USB_DEVICE(0x2001, 0x3c15) },
{ USB_DEVICE(0x2001, 0x3c19) },
{ USB_DEVICE(0x2001, 0x3c1c) },
{ USB_DEVICE(0x2001, 0x3c1d) },
{ USB_DEVICE(0x2001, 0x3c1e) },
{ USB_DEVICE(0x2001, 0x3c20) },
{ USB_DEVICE(0x2001, 0x3c22) },
{ USB_DEVICE(0x2001, 0x3c23) },
/* LG innotek */
{ USB_DEVICE(0x043e, 0x7a22) },
{ USB_DEVICE(0x043e, 0x7a42) },
/* Panasonic */
{ USB_DEVICE(0x04da, 0x1801) },
{ USB_DEVICE(0x04da, 0x1800) },
{ USB_DEVICE(0x04da, 0x23f6) },
/* Philips */
{ USB_DEVICE(0x0471, 0x2104) },
{ USB_DEVICE(0x0471, 0x2126) },
{ USB_DEVICE(0x0471, 0x2180) },
{ USB_DEVICE(0x0471, 0x2181) },
{ USB_DEVICE(0x0471, 0x2182) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x5370) },
{ USB_DEVICE(0x148f, 0x5372) },
#endif
#ifdef CONFIG_RT2800USB_RT55XX
/* Arcadyan */
{ USB_DEVICE(0x043e, 0x7a32) },
/* AVM GmbH */
{ USB_DEVICE(0x057c, 0x8501) },
/* Buffalo */
{ USB_DEVICE(0x0411, 0x0241) },
/* D-Link */
{ USB_DEVICE(0x2001, 0x3c1a) },
{ USB_DEVICE(0x2001, 0x3c21) },
/* Proware */
{ USB_DEVICE(0x043e, 0x7a13) },
/* Ralink */
{ USB_DEVICE(0x148f, 0x5572) },
/* TRENDnet */
{ USB_DEVICE(0x20f4, 0x724a) },
#endif
#ifdef CONFIG_RT2800USB_UNKNOWN
/*
* Unclear what kind of devices these are (they aren't supported by the
* vendor linux driver).
*/
/* Abocom */
{ USB_DEVICE(0x07b8, 0x3073) },
{ USB_DEVICE(0x07b8, 0x3074) },
/* Alpha Networks */
{ USB_DEVICE(0x14b2, 0x3c08) },
{ USB_DEVICE(0x14b2, 0x3c11) },
/* Amigo */
{ USB_DEVICE(0x0e0b, 0x9031) },
{ USB_DEVICE(0x0e0b, 0x9041) },
/* ASUS */
{ USB_DEVICE(0x0b05, 0x166a) },
{ USB_DEVICE(0x0b05, 0x1760) },
{ USB_DEVICE(0x0b05, 0x1761) },
{ USB_DEVICE(0x0b05, 0x1790) },
{ USB_DEVICE(0x0b05, 0x17a7) },
/* AzureWave */
{ USB_DEVICE(0x13d3, 0x3262) },
{ USB_DEVICE(0x13d3, 0x3284) },
{ USB_DEVICE(0x13d3, 0x3322) },
{ USB_DEVICE(0x13d3, 0x3340) },
{ USB_DEVICE(0x13d3, 0x3399) },
{ USB_DEVICE(0x13d3, 0x3400) },
{ USB_DEVICE(0x13d3, 0x3401) },
/* Belkin */
{ USB_DEVICE(0x050d, 0x1003) },
/* Buffalo */
{ USB_DEVICE(0x0411, 0x012e) },
{ USB_DEVICE(0x0411, 0x0148) },
{ USB_DEVICE(0x0411, 0x0150) },
/* Corega */
{ USB_DEVICE(0x07aa, 0x0041) },
{ USB_DEVICE(0x07aa, 0x0042) },
{ USB_DEVICE(0x18c5, 0x0008) },
/* D-Link */
{ USB_DEVICE(0x07d1, 0x3c0b) },
/* Encore */
{ USB_DEVICE(0x203d, 0x14a1) },
/* EnGenius */
{ USB_DEVICE(0x1740, 0x0600) },
{ USB_DEVICE(0x1740, 0x0602) },
/* Gemtek */
{ USB_DEVICE(0x15a9, 0x0010) },
/* Gigabyte */
{ USB_DEVICE(0x1044, 0x800c) },
/* Hercules */
{ USB_DEVICE(0x06f8, 0xe036) },
/* Huawei */
{ USB_DEVICE(0x148f, 0xf101) },
/* I-O DATA */
{ USB_DEVICE(0x04bb, 0x094b) },
/* LevelOne */
{ USB_DEVICE(0x1740, 0x0605) },
{ USB_DEVICE(0x1740, 0x0615) },
/* Logitec */
{ USB_DEVICE(0x0789, 0x0168) },
{ USB_DEVICE(0x0789, 0x0169) },
/* Motorola */
{ USB_DEVICE(0x100d, 0x9032) },
/* Pegatron */
{ USB_DEVICE(0x05a6, 0x0101) },
{ USB_DEVICE(0x1d4d, 0x0010) },
/* Planex */
{ USB_DEVICE(0x2019, 0xab24) },
{ USB_DEVICE(0x2019, 0xab29) },
/* Qcom */
{ USB_DEVICE(0x18e8, 0x6259) },
/* RadioShack */
{ USB_DEVICE(0x08b9, 0x1197) },
/* Sitecom */
{ USB_DEVICE(0x0df6, 0x003c) },
{ USB_DEVICE(0x0df6, 0x004a) },
{ USB_DEVICE(0x0df6, 0x004d) },
{ USB_DEVICE(0x0df6, 0x0053) },
{ USB_DEVICE(0x0df6, 0x0069) },
{ USB_DEVICE(0x0df6, 0x006f) },
/* SMC */
{ USB_DEVICE(0x083a, 0xa512) },
{ USB_DEVICE(0x083a, 0xc522) },
{ USB_DEVICE(0x083a, 0xd522) },
{ USB_DEVICE(0x083a, 0xf511) },
/* Sweex */
{ USB_DEVICE(0x177f, 0x0254) },
/* TP-LINK */
{ USB_DEVICE(0xf201, 0x5370) },
#endif
{ 0, }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT2800 USB Wireless LAN driver.");
MODULE_SUPPORTED_DEVICE("Ralink RT2870 USB chipset based cards");
MODULE_DEVICE_TABLE(usb, rt2800usb_device_table);
MODULE_FIRMWARE(FIRMWARE_RT2870);
MODULE_LICENSE("GPL");
static int rt2800usb_probe(struct usb_interface *usb_intf,
const struct usb_device_id *id)
{
return rt2x00usb_probe(usb_intf, &rt2800usb_ops);
}
static struct usb_driver rt2800usb_driver = {
.name = KBUILD_MODNAME,
.id_table = rt2800usb_device_table,
.probe = rt2800usb_probe,
.disconnect = rt2x00usb_disconnect,
.suspend = rt2x00usb_suspend,
.resume = rt2x00usb_resume,
.reset_resume = rt2x00usb_resume,
USB: Disable hub-initiated LPM for comms devices. Hub-initiated LPM is not good for USB communications devices. Comms devices should be able to tell when their link can go into a lower power state, because they know when an incoming transmission is finished. Ideally, these devices would slam their links into a lower power state, using the device-initiated LPM, after finishing the last packet of their data transfer. If we enable the idle timeouts for the parent hubs to enable hub-initiated LPM, we will get a lot of useless LPM packets on the bus as the devices reject LPM transitions when they're in the middle of receiving data. Worse, some devices might blindly accept the hub-initiated LPM and power down their radios while they're in the middle of receiving a transmission. The Intel Windows folks are disabling hub-initiated LPM for all USB communications devices under a xHCI USB 3.0 host. In order to keep the Linux behavior as close as possible to Windows, we need to do the same in Linux. Set the disable_hub_initiated_lpm flag for for all USB communications drivers. I know there aren't currently any USB 3.0 devices that implement these class specifications, but we should be ready if they do. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: Hansjoerg Lipp <hjlipp@web.de> Cc: Tilman Schmidt <tilman@imap.cc> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Jan Dumon <j.dumon@option.com> Cc: Petko Manolov <petkan@users.sourceforge.net> Cc: Steve Glendinning <steve.glendinning@smsc.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Kalle Valo <kvalo@qca.qualcomm.com> Cc: "Luis R. Rodriguez" <mcgrof@qca.qualcomm.com> Cc: Jouni Malinen <jouni@qca.qualcomm.com> Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com> Cc: Christian Lamparter <chunkeey@googlemail.com> Cc: Brett Rudley <brudley@broadcom.com> Cc: Roland Vossen <rvossen@broadcom.com> Cc: Arend van Spriel <arend@broadcom.com> Cc: "Franky (Zhenhui) Lin" <frankyl@broadcom.com> Cc: Kan Yan <kanyan@broadcom.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Cc: Ivo van Doorn <IvDoorn@gmail.com> Cc: Gertjan van Wingerde <gwingerde@gmail.com> Cc: Helmut Schaa <helmut.schaa@googlemail.com> Cc: Herton Ronaldo Krzesinski <herton@canonical.com> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Chaoming Li <chaoming_li@realsil.com.cn> Cc: Daniel Drake <dsd@gentoo.org> Cc: Ulrich Kunitz <kune@deine-taler.de> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2012-04-24 01:08:51 +08:00
.disable_hub_initiated_lpm = 1,
};
module_usb_driver(rt2800usb_driver);