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bes2600-dkms/bes2600/wsm.c
T
test0r 0ec58c0ad5 bes2600: Patch C2 — replace ieee80211_rx_irqsafe with ieee80211_rx_ni 
Per Phase 4 plan PR #14 + kerneldoc audit (Task #19).  Six call sites
deferred per-RX-frame mac80211 dispatch via tasklet; replace with the
synchronous-from-process-context API ieee80211_rx_ni() which does its
own local_bh_disable wrap.

Why _ni and not _list:

  Phase 4 plan originally targeted ieee80211_rx_list for batch
  delivery.  Mining mt76 mainline (the only driver using _list)
  showed the canonical pattern requires threading a struct list_head
  through the per-frame call chain.  bes2600s WSM dispatcher
  (wsm_handle_rx -> bes2600_rx_cb / wsm.c beacon path) sits between
  the bh threads SDIO read and the mac80211 hand-off; threading a
  list_head through the dispatcher is a non-trivial refactor.
  ieee80211_rx_ni() is the simpler drop-in: no list management, still
  removes the tasklet hop.  Per-call local_bh_disable cost is trivial
  vs the saved tasklet schedule.  Future refactor can revisit _list
  if measurements warrant.

Sites converted:

  - ap.c:96       (bes2600_sta_add link-id rx_queue drain on AP-mode
                   STA add).  Was inside spin_lock_bh(&ps_state_lock);
                   refactored to splice the queue under the lock then
                   deliver after unlock — _ni runs the synchronous
                   mac80211 RX path inline, would otherwise hold the
                   lock across mac80211 dispatch.  splice via
                   skb_queue_splice_init into a local sk_buff_head.
  - sta.c:1487    (deauth-frame inject in inactivity-event handler).
                   Not under any lock; direct conversion.
  - txrx.c:1960   (early-data + pm_unsupported branch from Patch E).
  - txrx.c:1967   (early-data + LINK_SOFT-not-set branch).
  - txrx.c:1971   (normal RX path in bes2600_rx_cb).
  - wsm.c:2415    (beacon delivery in scan-complete WSM handler).
                   beacon SKB ownership is preserved by the existing
                   skb_copy(beacon, GFP_ATOMIC) -> beacon_bkp pattern;
                   no lifecycle change needed.

Mixing constraint (kerneldoc include/net/mac80211.h:5399-5430):
ieee80211_rx_ni() cannot mix with ieee80211_rx_irqsafe() for a
single hardware.  All 6 sites convert atomically; no mixed state.

Build verified clean on ohm sandbox: srcversion 619A51E61BF5479AAC146E6.

Predicted Phase 7 delta: +5-15% over v3+D+E baseline (2.35 MB/s mean
on v3 alone; D+E single-rep was 3.22 MB/s).  Modest improvement
expected from removing the tasklet schedule per RX frame.  Smaller
deltas would still be a net win for upstream-cleanliness — the
kernel.org submission story benefits from not using _irqsafe from
process context.
2026-05-08 06:40:00 +02:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* WSM host interface for BES2600 mac80211 driver
*
* Copyright (c) 2010, ST-Ericsson
* Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
*
* Copyright (c) 2022, Bestechnic (Beijing) Co., Ltd.
*
*/
#include <linux/skbuff.h>
#include <linux/wait.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/random.h>
#include <linux/etherdevice.h>
#include "bes2600.h"
#include "wsm.h"
#include "bh.h"
#include "debug.h"
#include "itp.h"
#ifdef ROAM_OFFLOAD
#include "sta.h"
#endif /*ROAM_OFFLOAD*/
#ifdef CONFIG_BES2600_TESTMODE
#include "bes_nl80211_testmode_msg.h"
#endif
#include "bes_chardev.h"
#include "bes2600_factory.h"
#include "epta_coex.h"
#include "epta_request.h"
#include "bes_log.h"
#define WSM_CMD_TIMEOUT (6 * HZ) /* With respect to interrupt loss */
#define WSM_CMD_JOIN_TIMEOUT (7 * HZ) /* Join timeout is 5 sec. in FW */
#define WSM_CMD_START_TIMEOUT (7 * HZ)
#define WSM_CMD_RESET_TIMEOUT (7 * HZ) /* 2 sec. timeout was observed. */
#define WSM_CMD_DEFAULT_TIMEOUT (7 * HZ)
#define WSM_SKIP(buf, size) \
do { \
if (unlikely((buf)->data + size > (buf)->end)) \
goto underflow; \
(buf)->data += size; \
} while (0)
#define WSM_GET(buf, ptr, size) \
do { \
if (unlikely((buf)->data + size > (buf)->end)) \
goto underflow; \
memcpy(ptr, (buf)->data, size); \
(buf)->data += size; \
} while (0)
#define __WSM_GET(buf, type, cvt) \
({ \
type val; \
if (unlikely((buf)->data + sizeof(type) > (buf)->end)) \
goto underflow; \
val = cvt(*(type *)(buf)->data); \
(buf)->data += sizeof(type); \
val; \
})
#define WSM_GET8(buf) __WSM_GET(buf, u8, (u8))
#define WSM_GET16(buf) __WSM_GET(buf, u16, __le16_to_cpu)
#define WSM_GET32(buf) __WSM_GET(buf, u32, __le32_to_cpu)
#define WSM_PUT(buf, ptr, size) \
do { \
if (unlikely((buf)->data + size > (buf)->end)) \
if (unlikely(wsm_buf_reserve((buf), size))) \
goto nomem; \
memcpy((buf)->data, ptr, size); \
(buf)->data += size; \
} while (0)
#define __WSM_PUT(buf, val, type, cvt) \
do { \
if (unlikely((buf)->data + sizeof(type) > (buf)->end)) \
if (unlikely(wsm_buf_reserve((buf), sizeof(type)))) \
goto nomem; \
*(type *)(buf)->data = cvt(val); \
(buf)->data += sizeof(type); \
} while (0)
#define WSM_PUT8(buf, val) __WSM_PUT(buf, val, u8, (u8))
#define WSM_PUT16(buf, val) __WSM_PUT(buf, val, u16, __cpu_to_le16)
#define WSM_PUT32(buf, val) __WSM_PUT(buf, val, u32, __cpu_to_le32)
static void wsm_buf_reset(struct wsm_buf *buf);
static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size);
static int get_interface_id_scanning(struct bes2600_common *hw_priv);
static int wsm_cmd_send(struct bes2600_common *hw_priv,
struct wsm_buf *buf,
void *arg, u16 cmd, long tmo, int if_id);
static struct bes2600_vif
*wsm_get_interface_for_tx(struct bes2600_common *hw_priv);
static inline void wsm_cmd_lock(struct bes2600_common *hw_priv)
{
bes2600_pwr_set_busy_event(hw_priv, BES_PWR_LOCK_ON_WSM_TX);
down(&hw_priv->wsm_cmd_sema);
}
static inline void wsm_cmd_unlock(struct bes2600_common *hw_priv)
{
up(&hw_priv->wsm_cmd_sema);
bes2600_pwr_clear_busy_event(hw_priv, BES_PWR_LOCK_ON_WSM_TX);
}
static inline void wsm_oper_lock(struct bes2600_common *hw_priv)
{
bes2600_pwr_set_busy_event(hw_priv, BES_PWR_LOCK_ON_WSM_OPER);
down(&hw_priv->wsm_oper_lock);
}
static inline void wsm_oper_unlock(struct bes2600_common *hw_priv)
{
up(&hw_priv->wsm_oper_lock);
bes2600_pwr_clear_busy_event(hw_priv, BES_PWR_LOCK_ON_WSM_OPER);
}
/* ******************************************************************** */
/* WSM API implementation */
static int wsm_generic_confirm(struct bes2600_common *hw_priv,
void *arg,
struct wsm_buf *buf)
{
u32 status = WSM_GET32(buf);
/*
* A non-SUCCESS status here is a firmware-side policy decision for
* the command whose confirm this is -- commonly WSM status 2 for
* scan (0x0407) rejected because of a coex window or transient
* firmware-busy state. It is not a driver/kernel bug, so avoid the
* WARN()/stack-trace treatment; the caller already emits a
* wiphy_warn identifying the request id and will propagate the
* error to mac80211.
*/
if (status != WSM_STATUS_SUCCESS) {
bes_devel("%s ret %u\n", __func__, status);
return -EINVAL;
}
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
int wsm_configuration(struct bes2600_common *hw_priv,
struct wsm_configuration *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT32(buf, arg->dot11MaxTransmitMsduLifeTime);
WSM_PUT32(buf, arg->dot11MaxReceiveLifeTime);
WSM_PUT32(buf, arg->dot11RtsThreshold);
/* DPD block. */
WSM_PUT16(buf, arg->dpdData_size + 12);
WSM_PUT16(buf, 1); /* DPD version */
WSM_PUT(buf, arg->dot11StationId, ETH_ALEN);
WSM_PUT16(buf, 5); /* DPD flags */
WSM_PUT(buf, arg->dpdData, arg->dpdData_size);
ret = wsm_cmd_send(hw_priv, buf, arg, 0x0009, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
static int wsm_configuration_confirm(struct bes2600_common *hw_priv,
struct wsm_configuration *arg,
struct wsm_buf *buf)
{
int i;
int status;
status = WSM_GET32(buf);
if (WARN_ON(status != WSM_STATUS_SUCCESS))
return -EINVAL;
if (bes2600_chrdev_is_signal_mode()) {
WSM_GET(buf, arg->dot11StationId, ETH_ALEN);
arg->dot11FrequencyBandsSupported = WSM_GET8(buf);
WSM_SKIP(buf, 1);
arg->supportedRateMask = WSM_GET32(buf);
for (i = 0; i < 2; ++i) {
arg->txPowerRange[i].min_power_level = WSM_GET32(buf);
arg->txPowerRange[i].max_power_level = WSM_GET32(buf);
arg->txPowerRange[i].stepping = WSM_GET32(buf);
}
}
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
/* ******************************************************************** */
//rf nosignaling tset
#ifdef CONFIG_BES2600_TESTMODE
int wsm_vendor_rf_cmd_confirm(struct bes2600_common *hw_priv, void *arg, struct wsm_buf *buf)
{
return 0;
}
int wsm_vendor_rf_test_indication(struct bes2600_common *hw_priv, struct wsm_buf *buf)
{
int i;
int16_t ret = 0;
u16 wsm_len;
u32 cmd_type;
struct wifi_power_cali_save_t power_cali_save;
struct wifi_freq_cali_t wifi_freq_cali;
struct wifi_get_power_cali_t power_cali_get;
struct wifi_power_cali_flag_t power_cali_flag;
struct wsm_mcu_hdr *msg_hdr = (struct wsm_mcu_hdr *)(buf->begin);
wsm_len = __le16_to_cpu(msg_hdr->hdr.len);
cmd_type = __le32_to_cpu(msg_hdr->cmd_type);
buf->data += sizeof(struct wsm_mcu_hdr) - sizeof(struct wsm_hdr);
switch (cmd_type) {
case VENDOR_RF_SAVE_FREQOFFSET_CMD:
case VENDOR_RF_GET_SAVE_FREQOFFSET_CMD:
wifi_freq_cali.save_type = WSM_GET16(buf);
wifi_freq_cali.freq_cali = WSM_GET16(buf);
wifi_freq_cali.status = -WSM_GET16(buf);
wifi_freq_cali.cali_flag = WSM_GET16(buf);
if (wifi_freq_cali.save_type == RF_CALIB_DATA_IN_LINUX) {
if (cmd_type == VENDOR_RF_SAVE_FREQOFFSET_CMD) {
#ifdef CONFIG_BES2600_CALIB_FROM_LINUX
ret = bes2600_wifi_cali_freq_write(&wifi_freq_cali);
#else
ret = -FACTORY_SAVE_FREQ_ERR;
#endif
}
if (cmd_type == VENDOR_RF_GET_SAVE_FREQOFFSET_CMD) {
#ifdef CONFIG_BES2600_CALIB_FROM_LINUX
ret = vendor_get_freq_cali(&wifi_freq_cali);
#else
ret = -FACTORY_SAVE_FILE_NOT_EXIST;
#endif
}
wifi_freq_cali.status = ret;
}
bes2600_rf_cmd_msg_assembly(cmd_type, &wifi_freq_cali,
sizeof(struct wifi_freq_cali_t));
break;
case VENDOR_RF_SAVE_POWERLEVEL_CMD:
power_cali_save.save_type = WSM_GET16(buf);
power_cali_save.mode = WSM_GET16(buf);
power_cali_save.bandwidth = WSM_GET16(buf);
power_cali_save.band = WSM_GET16(buf);
power_cali_save.ch = WSM_GET16(buf);
power_cali_save.power_cali = WSM_GET16(buf);
power_cali_save.status = -WSM_GET16(buf);
if (power_cali_save.save_type == RF_CALIB_DATA_IN_LINUX) {
#ifdef CONFIG_BES2600_CALIB_FROM_LINUX
ret = bes2600_wifi_power_cali_table_write(&power_cali_save);
#else
ret = -FACTORY_SAVE_POWER_ERR;
#endif
power_cali_save.status = ret;
}
bes2600_rf_cmd_msg_assembly(cmd_type, &power_cali_save,
sizeof(struct wifi_power_cali_save_t));
break;
case VENDOR_RF_GET_SAVE_POWERLEVEL_CMD:
power_cali_get.save_type = WSM_GET16(buf);
if (power_cali_get.save_type == RF_CALIB_DATA_IN_LINUX) {
#ifdef CONFIG_BES2600_CALIB_FROM_LINUX
ret = vendor_get_power_cali(&power_cali_get);
#else
ret = -FACTORY_SAVE_FILE_NOT_EXIST;
#endif
power_cali_get.status = ret;
} else {
/* 2.4G have 3 cali ch */
for (i = 0; i < 3; i++)
power_cali_get.tx_power_ch[i] = WSM_GET16(buf);
/* 5G have 13 cali ch */
for (i = 0; i < 13; i++)
power_cali_get.tx_power_ch_5G[i] = WSM_GET16(buf);
power_cali_get.status = -WSM_GET16(buf);
}
bes2600_rf_cmd_msg_assembly(cmd_type, &power_cali_get,
sizeof(struct wifi_get_power_cali_t));
break;
case VENDOR_RF_POWER_CALIB_FINISH:
power_cali_flag.save_type = WSM_GET16(buf);
power_cali_flag.band = WSM_GET16(buf);
power_cali_flag.status = -WSM_GET16(buf);
if (power_cali_flag.save_type == RF_CALIB_DATA_IN_LINUX) {
#ifdef CONFIG_BES2600_CALIB_FROM_LINUX
ret = vendor_set_power_cali_flag(&power_cali_flag);
#else
ret = -FACTORY_SET_POWER_CALI_FLAG_ERR;
#endif
power_cali_flag.status = ret;
}
bes2600_rf_cmd_msg_assembly(cmd_type, &power_cali_flag,
sizeof(struct wifi_power_cali_flag_t));
break;
case VENDOR_RF_SIGNALING_CMD:
case VENDOR_RF_NOSIGNALING_CMD:
case VENDOR_RF_GET_CALI_FROM_EFUSE:
bes2600_rf_cmd_msg_assembly(cmd_type, buf->data, wsm_len - sizeof(struct wsm_mcu_hdr));
break;
default:
break;
}
up(&hw_priv->vendor_rf_cmd_replay_sema);
bes2600_pwr_clear_busy_event(hw_priv, BES_PWR_LOCK_ON_TEST_CMD);
return 0;
underflow:
return -EINVAL;
}
int wsm_vendor_rf_cmd(struct bes2600_common *hw_priv, int if_id,
const struct vendor_rf_cmd_t *vendor_rf_cmd)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* the command need to wait complete indication */
bes2600_pwr_set_busy_event(hw_priv, BES_PWR_LOCK_ON_TEST_CMD);
WSM_PUT32(buf, vendor_rf_cmd->cmd_type);
WSM_PUT32(buf, vendor_rf_cmd->cmd_argc);
WSM_PUT32(buf, vendor_rf_cmd->cmd_len);
WSM_PUT(buf, vendor_rf_cmd->cmd, vendor_rf_cmd->cmd_len);
/**
* vendor signaling and nosignaling use id 0x0C25.
*/
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0C25, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
#endif /* CONFIG_BES2600_TESTMODE */
/* ******************************************************************** */
// wifi cpu sleep control
// UNUSED
/*
#ifdef BES_UNIFIED_PM
struct wsm_sleep_ctrl {
u16 msgid;
u16 msglen;
u32 disable;
};
static int wsm_sleep_ctrl(struct bes2600_common *hw_priv, u32 disable, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
if (if_id != 0) {
WARN_ON(1);
return -EBUSY;
}
wsm_cmd_lock(hw_priv);
WSM_PUT32(buf, disable);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0024, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
#endif
*/
/* ******************************************************************** */
int wsm_reset(struct bes2600_common *hw_priv, const struct wsm_reset *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
u16 cmd = 0x000A | WSM_TX_LINK_ID(arg->link_id);
wsm_cmd_lock(hw_priv);
WSM_PUT32(buf, arg->reset_statistics ? 0 : 1);
ret = wsm_cmd_send(hw_priv, buf, NULL, cmd, WSM_CMD_RESET_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_read_mib(struct bes2600_common *hw_priv, u16 mibId, void *_buf,
size_t buf_size)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
struct wsm_mib mib_buf = {
.mibId = mibId,
.buf = _buf,
.buf_size = buf_size,
};
wsm_cmd_lock(hw_priv);
WSM_PUT16(buf, mibId);
WSM_PUT16(buf, 0);
ret = wsm_cmd_send(hw_priv, buf, &mib_buf, 0x0005, WSM_CMD_TIMEOUT, -1);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
static int wsm_read_mib_confirm(struct bes2600_common *hw_priv,
struct wsm_mib *arg,
struct wsm_buf *buf)
{
u16 size;
if (WARN_ON(WSM_GET32(buf) != WSM_STATUS_SUCCESS))
return -EINVAL;
if (WARN_ON(WSM_GET16(buf) != arg->mibId))
return -EINVAL;
size = WSM_GET16(buf);
if (size > arg->buf_size)
size = arg->buf_size;
WSM_GET(buf, arg->buf, size);
arg->buf_size = size;
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
/* ******************************************************************** */
int wsm_write_mib(struct bes2600_common *hw_priv, u16 mibId, void *_buf,
size_t buf_size, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
struct wsm_mib mib_buf = {
.mibId = mibId,
.buf = _buf,
.buf_size = buf_size,
};
wsm_cmd_lock(hw_priv);
WSM_PUT16(buf, mibId);
WSM_PUT16(buf, buf_size);
WSM_PUT(buf, _buf, buf_size);
ret = wsm_cmd_send(hw_priv, buf, &mib_buf, 0x0006, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
static int wsm_write_mib_confirm(struct bes2600_common *hw_priv,
struct wsm_mib *arg,
struct wsm_buf *buf,
int interface_link_id)
{
int ret;
struct bes2600_vif *priv;
if (!is_hardware_cw1250(hw_priv) || is_hardware_cw1260(hw_priv))
interface_link_id = 0;
ret = wsm_generic_confirm(hw_priv, arg, buf);
if (ret)
return ret;
if (arg->mibId == 0x1006) {
const char *p = arg->buf;
/* Power save is enabled before add_interface is called */
if (!hw_priv->vif_list[interface_link_id])
return 0;
/* OperationalMode: update PM status. */
priv = cw12xx_hwpriv_to_vifpriv(hw_priv,
interface_link_id);
if (!priv)
return 0;
bes2600_enable_powersave(priv,
(p[0] & 0x0F) ? true : false);
spin_unlock(&priv->vif_lock);
}
return 0;
}
/* ******************************************************************** */
int wsm_scan(struct bes2600_common *hw_priv, const struct wsm_scan *arg,
int if_id)
{
int i;
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
if (unlikely(arg->numOfChannels > 48))
return -EINVAL;
if (unlikely(arg->numOfSSIDs > WSM_SCAN_MAX_NUM_OF_SSIDS))
return -EINVAL;
if (unlikely(arg->band > 1))
return -EINVAL;
wsm_oper_lock(hw_priv);
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->band);
WSM_PUT8(buf, arg->scanType);
WSM_PUT8(buf, arg->scanFlags);
WSM_PUT8(buf, arg->maxTransmitRate);
WSM_PUT32(buf, arg->autoScanInterval);
WSM_PUT8(buf, arg->numOfProbeRequests);
WSM_PUT8(buf, arg->numOfChannels);
WSM_PUT8(buf, arg->numOfSSIDs);
WSM_PUT8(buf, arg->probeDelay);
for (i = 0; i < arg->numOfChannels; ++i) {
WSM_PUT16(buf, arg->ch[i].number);
WSM_PUT16(buf, 0);
WSM_PUT32(buf, arg->ch[i].minChannelTime);
WSM_PUT32(buf, arg->ch[i].maxChannelTime);
WSM_PUT32(buf, 0);
}
for (i = 0; i < arg->numOfSSIDs; ++i) {
WSM_PUT32(buf, arg->ssids[i].length);
WSM_PUT(buf, &arg->ssids[i].ssid[0],
sizeof(arg->ssids[i].ssid));
}
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0007, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
if (ret)
wsm_oper_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
wsm_oper_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_stop_scan(struct bes2600_common *hw_priv, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0008, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
}
static int wsm_tx_confirm(struct bes2600_common *hw_priv,
struct wsm_buf *buf,
int interface_link_id)
{
struct wsm_tx_confirm tx_confirm;
tx_confirm.packetID = WSM_GET32(buf);
tx_confirm.status = WSM_GET32(buf);
tx_confirm.txedRate = WSM_GET8(buf);
tx_confirm.ackFailures = WSM_GET8(buf);
tx_confirm.flags = WSM_GET16(buf);
tx_confirm.mediaDelay = WSM_GET32(buf);
tx_confirm.txQueueDelay = WSM_GET32(buf);
if (is_hardware_cw1250(hw_priv) || is_hardware_cw1260(hw_priv)) {
/* TODO:COMBO:linkID will be stored in packetID*/
/* TODO:COMBO: Extract traffic resumption map */
tx_confirm.if_id = bes2600_queue_get_if_id(tx_confirm.packetID);
tx_confirm.link_id = bes2600_queue_get_link_id(
tx_confirm.packetID);
} else {
tx_confirm.link_id = interface_link_id;
tx_confirm.if_id = 0;
}
wsm_release_vif_tx_buffer(hw_priv, tx_confirm.if_id, 1);
if (hw_priv->wsm_cbc.tx_confirm)
hw_priv->wsm_cbc.tx_confirm(hw_priv, &tx_confirm);
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
static int wsm_multi_tx_confirm(struct bes2600_common *hw_priv,
struct wsm_buf *buf, int interface_link_id)
{
struct bes2600_vif *priv;
int ret;
int count;
int i;
count = WSM_GET32(buf);
if (WARN_ON(count <= 0))
return -EINVAL;
else if (count > 1) {
ret = wsm_release_tx_buffer(hw_priv, count - 1);
if (ret < 0)
return ret;
else if (ret > 0)
bes2600_bh_wakeup(hw_priv);
}
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, interface_link_id);
if (priv) {
bes2600_debug_txed_multi(priv, count);
spin_unlock(&priv->vif_lock);
}
for (i = 0; i < count; ++i) {
if(i < count - 1)
bes2600_bh_dec_pending_count(hw_priv, 0);
ret = wsm_tx_confirm(hw_priv, buf, interface_link_id);
if (ret)
return ret;
}
return ret;
underflow:
WARN_ON(1);
return -EINVAL;
}
/* ******************************************************************** */
static int wsm_join_confirm(struct bes2600_common *hw_priv,
struct wsm_join *arg,
struct wsm_buf *buf)
{
u32 status = WSM_GET32(buf);
wsm_oper_unlock(hw_priv);
if (status != WSM_STATUS_SUCCESS) {
bes_warn("wsm_join_confirm ret %u\n", status);
return -EINVAL;
}
arg->minPowerLevel = WSM_GET32(buf);
arg->maxPowerLevel = WSM_GET32(buf);
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
int wsm_join(struct bes2600_common *hw_priv, struct wsm_join *arg,
int if_id)
/*TODO: combo: make it work per vif.*/
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_oper_lock(hw_priv);
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->mode);
WSM_PUT8(buf, arg->band);
WSM_PUT16(buf, arg->channelNumber);
WSM_PUT(buf, &arg->bssid[0], sizeof(arg->bssid));
WSM_PUT16(buf, arg->atimWindow);
WSM_PUT8(buf, arg->preambleType);
WSM_PUT8(buf, arg->probeForJoin);
WSM_PUT8(buf, arg->dtimPeriod);
WSM_PUT8(buf, arg->flags);
WSM_PUT32(buf, arg->ssidLength);
WSM_PUT(buf, &arg->ssid[0], sizeof(arg->ssid));
WSM_PUT32(buf, arg->beaconInterval);
WSM_PUT32(buf, arg->basicRateSet);
hw_priv->tx_burst_idx = -1;
ret = wsm_cmd_send(hw_priv, buf, arg, 0x000B, WSM_CMD_JOIN_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
wsm_oper_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_set_bss_params(struct bes2600_common *hw_priv,
const struct wsm_set_bss_params *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, 0);
WSM_PUT8(buf, arg->beaconLostCount);
WSM_PUT16(buf, arg->aid);
WSM_PUT32(buf, arg->operationalRateSet);
WSM_PUT32(buf, hw_priv->ht_info.ht_cap.mcs.rx_mask[0] << 14);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0011, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_add_key(struct bes2600_common *hw_priv, const struct wsm_add_key *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT(buf, arg, sizeof(*arg));
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x000C, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_remove_key(struct bes2600_common *hw_priv,
const struct wsm_remove_key *arg, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->entryIndex);
WSM_PUT8(buf, 0);
WSM_PUT16(buf, 0);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x000D, WSM_CMD_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_set_tx_queue_params(struct bes2600_common *hw_priv,
const struct wsm_set_tx_queue_params *arg,
u8 id, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
u8 queue_id_to_wmm_aci[] = {3, 2, 0, 1};
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, queue_id_to_wmm_aci[id]);
WSM_PUT8(buf, 0);
WSM_PUT8(buf, arg->ackPolicy);
WSM_PUT8(buf, 0);
WSM_PUT32(buf, arg->maxTransmitLifetime);
WSM_PUT16(buf, arg->allowedMediumTime);
WSM_PUT16(buf, 0);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0012, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_set_edca_params(struct bes2600_common *hw_priv,
const struct wsm_edca_params *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* Implemented according to specification. */
WSM_PUT16(buf, arg->params[3].cwMin);
WSM_PUT16(buf, arg->params[2].cwMin);
WSM_PUT16(buf, arg->params[1].cwMin);
WSM_PUT16(buf, arg->params[0].cwMin);
WSM_PUT16(buf, arg->params[3].cwMax);
WSM_PUT16(buf, arg->params[2].cwMax);
WSM_PUT16(buf, arg->params[1].cwMax);
WSM_PUT16(buf, arg->params[0].cwMax);
WSM_PUT8(buf, arg->params[3].aifns);
WSM_PUT8(buf, arg->params[2].aifns);
WSM_PUT8(buf, arg->params[1].aifns);
WSM_PUT8(buf, arg->params[0].aifns);
WSM_PUT16(buf, arg->params[3].txOpLimit);
WSM_PUT16(buf, arg->params[2].txOpLimit);
WSM_PUT16(buf, arg->params[1].txOpLimit);
WSM_PUT16(buf, arg->params[0].txOpLimit);
WSM_PUT32(buf, arg->params[3].maxReceiveLifetime);
WSM_PUT32(buf, arg->params[2].maxReceiveLifetime);
WSM_PUT32(buf, arg->params[1].maxReceiveLifetime);
WSM_PUT32(buf, arg->params[0].maxReceiveLifetime);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0013, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_switch_channel(struct bes2600_common *hw_priv,
const struct wsm_switch_channel *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_lock_tx(hw_priv);
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->channelMode | 0x80);
WSM_PUT8(buf, arg->channelSwitchCount);
WSM_PUT16(buf, arg->newChannelNumber);
hw_priv->channel_switch_in_progress = 1;
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0016, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
if (ret) {
wsm_unlock_tx(hw_priv);
hw_priv->channel_switch_in_progress = 0;
}
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
wsm_unlock_tx(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_set_pm(struct bes2600_common *hw_priv, const struct wsm_set_pm *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->pmMode);
WSM_PUT8(buf, arg->fastPsmIdlePeriod);
WSM_PUT8(buf, arg->apPsmChangePeriod);
WSM_PUT8(buf, arg->minAutoPsPollPeriod);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0010, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_start(struct bes2600_common *hw_priv, const struct wsm_start *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT8(buf, arg->mode);
WSM_PUT8(buf, arg->band);
WSM_PUT16(buf, arg->channelNumber);
WSM_PUT32(buf, arg->CTWindow);
WSM_PUT32(buf, arg->beaconInterval);
WSM_PUT8(buf, arg->DTIMPeriod);
WSM_PUT8(buf, arg->preambleType);
WSM_PUT8(buf, arg->probeDelay);
WSM_PUT8(buf, arg->ssidLength);
WSM_PUT(buf, arg->ssid, sizeof(arg->ssid));
WSM_PUT32(buf, arg->basicRateSet);
hw_priv->tx_burst_idx = -1;
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0017, WSM_CMD_START_TIMEOUT,
if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
#if 0
/* This API is no longer present in WSC */
/* ******************************************************************** */
int wsm_beacon_transmit(struct bes2600_common *hw_priv,
const struct wsm_beacon_transmit *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT32(buf, arg->enableBeaconing ? 1 : 0);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0018, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
#endif
/* ******************************************************************** */
int wsm_start_find(struct bes2600_common *hw_priv, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0019, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
}
/* ******************************************************************** */
int wsm_stop_find(struct bes2600_common *hw_priv, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x001A, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
}
/* ******************************************************************** */
int wsm_map_link(struct bes2600_common *hw_priv, const struct wsm_map_link *arg,
int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
u16 cmd = 0x001C;
wsm_cmd_lock(hw_priv);
WSM_PUT(buf, &arg->mac_addr[0], sizeof(arg->mac_addr));
if (is_hardware_cw1250(hw_priv) || is_hardware_cw1260(hw_priv)) {
WSM_PUT8(buf, arg->unmap);
WSM_PUT8(buf, arg->link_id);
} else {
cmd |= WSM_TX_LINK_ID(arg->link_id);
WSM_PUT16(buf, 0);
}
ret = wsm_cmd_send(hw_priv, buf, NULL, cmd, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
int wsm_update_ie(struct bes2600_common *hw_priv,
const struct wsm_update_ie *arg, int if_id)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
WSM_PUT16(buf, arg->what);
WSM_PUT16(buf, arg->count);
WSM_PUT(buf, arg->ies, arg->length);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x001B, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
int wsm_epta_cmd(struct bes2600_common *hw_priv, struct wsm_epta_msg *arg)
{
#ifdef WIFI_BT_COEXIST_EPTA_ENABLE
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
static bool epta_lock_tx = false;
if (arg->hw_epta_enable & (1 << 11))
arg->hw_epta_enable &= ~(3 << 10); // force TDD
else if (coex_is_fdd_mode())
arg->hw_epta_enable |= (1 << 10); //LMAC_COEX_MODE_FDD
if (arg->hw_epta_enable != 3 || arg->hw_epta_enable != 4) { //use for wifi connect
///TODO: remove this hack. use hardware in disconnect mode
if (coex_is_wifi_inactive()) {
arg->wlan_duration = 20000;
arg->bt_duration = 80000;
arg->hw_epta_enable &= ~(0x3);
}
// if (coex_is_fdd_mode()) {
// arg->wlan_duration = 100000;
// arg->bt_duration = 0;
// arg->hw_epta_enable |= (1 << 10);
// } else {
// if (coex_is_bt_inactive()) {
// arg->wlan_duration = 100000;
// arg->bt_duration = 0;
// arg->hw_epta_enable = 0;
// }
// }
}
bes_devel("epta cmd: wlan:%d bt:%d enable:%x",
arg->wlan_duration, arg->bt_duration, arg->hw_epta_enable);
/*
Should lock tx queue to avoid frame stuck in firmware if wlan_duration is zero.
There is no need to distinguish epta mode as the duration reflects requirements of scenarios
*/
if (arg->wlan_duration == 0 && !epta_lock_tx) {
wsm_lock_tx(hw_priv);
epta_lock_tx = true;
} else if (epta_lock_tx && arg->wlan_duration != 0) {
wsm_unlock_tx(hw_priv);
epta_lock_tx = false;
}
wsm_cmd_lock(hw_priv);
WSM_PUT32(buf, arg->wlan_duration);
WSM_PUT32(buf, arg->bt_duration);
WSM_PUT32(buf, arg->hw_epta_enable);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0029, WSM_CMD_TIMEOUT, 0);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
#else
return 0;
#endif
}
#ifdef WIFI_BT_COEXIST_EPTA_ENABLE
int wsm_epta_wifi_chan_cmd(struct bes2600_common *hw_priv, uint32_t channel, uint32_t type)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* cmd type */
WSM_PUT32(buf, BES2600_RF_CMD_CH_INFO);
WSM_PUT32(buf, channel);
WSM_PUT16(buf, type);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0C27, WSM_CMD_TIMEOUT, 0);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
#endif
int wsm_wifi_status_cmd(struct bes2600_common *hw_priv, uint32_t status)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* cmd type */
WSM_PUT32(buf, BES2600_RF_CMD_WIFI_STATUS);
WSM_PUT32(buf, status);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0C27, WSM_CMD_TIMEOUT, 0);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
int wsm_cpu_usage_cmd(struct bes2600_common *hw_priv)
{
int ret;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* cmd type */
WSM_PUT32(buf, BES2600_RF_CMD_CPU_USAGE);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0C27, WSM_CMD_TIMEOUT, 0);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
int wsm_save_factory_txt_to_mcu(struct bes2600_common *hw_priv, const u8 *data, int if_id, enum bes2600_rf_cmd_type cmd_type)
{
int ret, i;
const struct factory_t *factory_cali = (const struct factory_t *)data;
struct wsm_buf *buf = &hw_priv->wsm_cmd_buf;
wsm_cmd_lock(hw_priv);
/* cmd type */
WSM_PUT32(buf, cmd_type);
WSM_PUT32(buf, factory_cali->data.iQ_offset);
WSM_PUT16(buf, factory_cali->data.freq_cal);
for (i = 0; i < 3; i++)
WSM_PUT16(buf, factory_cali->data.tx_power_ch[i]);
WSM_PUT8(buf, factory_cali->data.freq_cal_flags);
WSM_PUT8(buf, factory_cali->data.tx_power_type);
WSM_PUT16(buf, factory_cali->data.temperature);
for (i = 0; i < 13; i++)
WSM_PUT16(buf, factory_cali->data.tx_power_ch_5G[i]);
WSM_PUT16(buf, factory_cali->data.tx_power_flags_5G);
for (i = 0; i < 4; i++)
WSM_PUT32(buf, factory_cali->data.bt_tx_power[i]);
WSM_PUT16(buf, factory_cali->data.temperature_5G);
ret = wsm_cmd_send(hw_priv, buf, NULL, 0x0C27, WSM_CMD_TIMEOUT, if_id);
wsm_cmd_unlock(hw_priv);
return ret;
nomem:
wsm_cmd_unlock(hw_priv);
return -ENOMEM;
}
/* ******************************************************************** */
#ifdef MCAST_FWDING
/* 3.66 */
static int wsm_give_buffer_confirm(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
bes_devel("[WSM] HW Buf count %d\n", hw_priv->hw_bufs_used);
if (!hw_priv->hw_bufs_used)
wake_up(&hw_priv->bh_evt_wq);
return 0;
}
/* 3.65 */
int wsm_init_release_buffer_request(struct bes2600_common *hw_priv, u8 index)
{
struct wsm_buf *buf = &hw_priv->wsm_release_buf[index];
u16 cmd = 0x0022; /* Buffer Request */
u8 flags;
size_t buf_len;
wsm_buf_init(buf);
flags = index ? 0: 0x1;
WSM_PUT8(buf, flags);
WSM_PUT8(buf, 0);
WSM_PUT16(buf, 0);
buf_len = buf->data - buf->begin;
/* Fill HI message header */
((__le16 *)buf->begin)[0] = __cpu_to_le16(buf_len);
((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd);
return 0;
nomem:
return -ENOMEM;
}
/* 3.68 */
static int wsm_request_buffer_confirm(struct bes2600_vif *priv,
u8 *arg,
struct wsm_buf *buf)
{
u8 count;
u32 sta_asleep_mask = 0;
int i;
u32 mask = 0;
u32 change_mask = 0;
struct bes2600_common *hw_priv = priv->hw_priv;
/* There is no status field in this message */
sta_asleep_mask = WSM_GET32(buf);
count = WSM_GET8(buf);
count -= 1; /* Current workaround for FW issue */
spin_lock_bh(&priv->ps_state_lock);
change_mask = (priv->sta_asleep_mask ^ sta_asleep_mask);
bes_devel("CM %x, HM %x, FWM %x\n", change_mask,priv->sta_asleep_mask, sta_asleep_mask);
spin_unlock_bh(&priv->ps_state_lock);
if (change_mask) {
struct ieee80211_sta *sta;
int ret = 0;
for (i = 0; i < CW1250_MAX_STA_IN_AP_MODE ; ++i) {
if(BES2600_LINK_HARD != priv->link_id_db[i].status)
continue;
mask = BIT(i + 1);
/* If FW state and host state for this link are different then notify OMAC */
if(change_mask & mask) {
bes_devel("PS State Changed %d for sta %pM\n", (sta_asleep_mask & mask) ? 1:0, priv->link_id_db[i].mac);
rcu_read_lock();
sta = ieee80211_find_sta(priv->vif, priv->link_id_db[i].mac);
if (!sta) {
bes_err("[WSM] WRBC - could not find sta %pM\n",
priv->link_id_db[i].mac);
} else {
ret = ieee80211_sta_ps_transition_ni(sta, (sta_asleep_mask & mask) ? true: false);
bes_devel("PS State NOTIFIED %d\n", ret);
WARN_ON(ret);
}
rcu_read_unlock();
}
}
/* Replace STA mask with one reported by FW */
spin_lock_bh(&priv->ps_state_lock);
priv->sta_asleep_mask = sta_asleep_mask;
spin_unlock_bh(&priv->ps_state_lock);
}
bes_devel("[WSM] WRBC - HW Buf count %d SleepMask %d\n",
hw_priv->hw_bufs_used, sta_asleep_mask);
hw_priv->buf_released = 0;
WARN_ON(count != (hw_priv->wsm_caps.numInpChBufs - 1));
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
/* 3.67 */
int wsm_request_buffer_request(struct bes2600_vif *priv,
u8 *arg)
{
int ret;
struct wsm_buf *buf = &priv->hw_priv->wsm_cmd_buf;
wsm_cmd_lock(priv->hw_priv);
WSM_PUT8(buf, (*arg));
WSM_PUT8(buf, 0);
WSM_PUT16(buf, 0);
ret = wsm_cmd_send(priv->hw_priv, buf, arg, 0x0023, WSM_CMD_JOIN_TIMEOUT,priv->if_id);
wsm_cmd_unlock(priv->hw_priv);
return ret;
nomem:
wsm_cmd_unlock(priv->hw_priv);
return -ENOMEM;
}
#endif
int wsm_set_keepalive_filter(struct bes2600_vif *priv, bool enable)
{
struct bes2600_common *hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
priv->rx_filter.keepalive = enable;
return wsm_set_rx_filter(hw_priv, &priv->rx_filter, priv->if_id);
}
int wsm_set_probe_responder(struct bes2600_vif *priv, bool enable)
{
struct bes2600_common *hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
priv->rx_filter.probeResponder = enable;
return wsm_set_rx_filter(hw_priv, &priv->rx_filter, priv->if_id);
}
/* ******************************************************************** */
/* WSM indication events implementation */
static int wsm_startup_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
u16 status;
char fw_label[129];
static const char * const fw_types[] = {
"ETF",
"WFM",
"WSM",
"HI test",
"Platform test"
};
hw_priv->wsm_caps.numInpChBufs = WSM_GET16(buf);
hw_priv->wsm_caps.sizeInpChBuf = WSM_GET16(buf);
hw_priv->wsm_caps.hardwareId = WSM_GET16(buf);
hw_priv->wsm_caps.hardwareSubId = WSM_GET16(buf);
status = WSM_GET16(buf);
hw_priv->wsm_caps.firmwareCap = WSM_GET16(buf);
hw_priv->wsm_caps.firmwareType = WSM_GET16(buf);
hw_priv->wsm_caps.firmwareApiVer = WSM_GET16(buf);
hw_priv->wsm_caps.firmwareBuildNumber = WSM_GET16(buf);
hw_priv->wsm_caps.firmwareVersion = WSM_GET16(buf);
WSM_GET(buf, &fw_label[0], sizeof(fw_label) - 1);
fw_label[sizeof(fw_label) - 1] = 0; /* Do not trust FW too much. */
if (WARN_ON(status))
return -EINVAL;
if (WARN_ON(hw_priv->wsm_caps.firmwareType > 4))
return -EINVAL;
bes_devel("BES2600 WSM init done.\n"
" Input buffers: %d x %d bytes\n"
" Hardware: %d.%d\n"
" %s firmware [%s], ver: %d, build: %d,"
" api: %d, cap: 0x%.4X\n",
hw_priv->wsm_caps.numInpChBufs,
hw_priv->wsm_caps.sizeInpChBuf,
hw_priv->wsm_caps.hardwareId,
hw_priv->wsm_caps.hardwareSubId,
fw_types[hw_priv->wsm_caps.firmwareType],
&fw_label[0],
hw_priv->wsm_caps.firmwareVersion,
hw_priv->wsm_caps.firmwareBuildNumber,
hw_priv->wsm_caps.firmwareApiVer,
hw_priv->wsm_caps.firmwareCap);
hw_priv->wsm_caps.firmwareReady = 1;
wake_up(&hw_priv->wsm_startup_done);
return 0;
underflow:
WARN_ON(1);
return -EINVAL;
}
static int wsm_receive_indication(struct bes2600_common *hw_priv,
int interface_link_id,
struct wsm_buf *buf,
struct sk_buff **skb_p)
{
struct bes2600_vif *priv;
s8 pkt_signal = 0;
hw_priv->rx_timestamp = jiffies;
if (hw_priv->wsm_cbc.rx) {
struct wsm_rx rx;
struct ieee80211_hdr *hdr;
size_t hdr_len;
__le16 fctl;
rx.status = WSM_GET32(buf);
rx.channelNumber = WSM_GET16(buf);
rx.rxedRate = WSM_GET8(buf);
rx.rcpiRssi = WSM_GET8(buf);
rx.flags = WSM_GET32(buf);
buf->data+=16; // 2019-10-25, for lmac wsm data ind struct update
/* TODO:COMBO: Frames received from scanning are received
* with interface ID == 2 */
if (is_hardware_cw1250(hw_priv) || is_hardware_cw1260(hw_priv)) {
if (interface_link_id == CW12XX_GENERIC_IF_ID) {
/* Frames received in response to SCAN
* Request */
interface_link_id =
get_interface_id_scanning(hw_priv);
if (interface_link_id == -1) {
interface_link_id = hw_priv->roc_if_id;
}
#ifdef ROAM_OFFLOAD
if (hw_priv->auto_scanning) {
interface_link_id = hw_priv->scan.if_id;
}
#endif/*ROAM_OFFLOAD*/
}
/* linkid (peer sta id is encoded in bit 25-28 of
flags field */
rx.link_id = ((rx.flags & (0xf << 25)) >> 25);
rx.if_id = interface_link_id;
} else {
rx.link_id = interface_link_id;
rx.if_id = 0;
}
if(rx.if_id == -1) {
bes_devel("%s: intf is not match\n", __func__);
return 0;
}
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, rx.if_id);
if (!priv) {
bes_devel("%s: NULL priv drop frame\n", __func__);
return 0;
}
/* FW Workaround: Drop probe resp or
beacon when RSSI is 0 */
hdr = (struct ieee80211_hdr *) buf->data;
if (!rx.rcpiRssi &&
(ieee80211_is_probe_resp(hdr->frame_control) ||
ieee80211_is_beacon(hdr->frame_control))) {
spin_unlock(&priv->vif_lock);
return 0;
}
/* If no RSSI subscription has been made,
* convert RCPI to RSSI here */
if (!priv->cqm_use_rssi) {
pkt_signal = rx.rcpiRssi / 2 - 110;
rx.rcpiRssi = rx.rcpiRssi / 2 - 110;
}
if(ieee80211_is_data(hdr->frame_control)) {
if (priv->signal == 0) {
priv->signal = pkt_signal;
priv->signal_mul = pkt_signal * 100;
} else {
priv->signal_mul = priv->signal_mul * 80 / 100 + pkt_signal * 20;
priv->signal = priv->signal_mul / 100;
}
bes_devel("pkt signal:%d\n", priv->signal);
}
fctl = *(__le16 *)buf->data;
hdr_len = buf->data - buf->begin;
skb_pull(*skb_p, hdr_len);
if (!rx.status &&
unlikely(ieee80211_is_deauth(fctl) || ieee80211_is_disassoc(fctl))) {
bes_devel("rx deauth or disassoc, priv->join_status:%u", priv->join_status);
if (priv->join_status == BES2600_JOIN_STATUS_STA &&
(ether_addr_equal(hdr->addr3, priv->join_bssid) ||
ether_addr_equal(hdr->addr3, priv->bssid))) {
bool ignore = false;
if (is_multicast_ether_addr(hdr->addr1)) {
struct ieee80211_mmie *mmie;
bool has_mmie = false;
/*
* We may receive broadcast/multicast robust management frame
* when PMF is enabled, in that case, FW has checked the MMIE
* and verified IPN and MIC.
* However, some buggy AP, e.g. Tenda AC6, send broadcast deauth
* with MMIE even when no management frame protection,
* this frame should be ignored and dropped by mac80211.
*/
if ((*skb_p)->len >= 24 + sizeof(*mmie)) {
mmie = (struct ieee80211_mmie *)
((*skb_p)->data + (*skb_p)->len - sizeof(*mmie));
if (mmie->element_id == WLAN_EID_MMIE &&
mmie->length == sizeof(*mmie) - 2)
has_mmie = true;
}
bes_devel("[WSM] RX broadcast/multicast deauth: len=%d, has_mmie:%u, pmf=%d\n",
(*skb_p)->len, has_mmie, priv->pmf);
if (has_mmie ^ priv->pmf)
ignore = true;
} else if (ether_addr_equal(hdr->addr1, priv->vif->addr)) {
bool has_protected = ieee80211_has_protected(fctl);
bes_devel("[WSM] RX unicast deauth: protected=%d, pmf=%d, connect_in_process=%d\n",
has_protected, priv->pmf, atomic_read(&priv->connect_in_process));
/*
* We should report unprotected deauth to mac80211 for
* SA query when PMF is enabled, so cannot unjoin here.
* If PMF is disabled, it is unexpected to receive
* a protected unicast deauth.
*/
if ((has_protected ^ priv->pmf) || atomic_read(&priv->connect_in_process))
ignore = true;
} else {
ignore = true;
}
if (!ignore) {
/* Schedule unjoin work */
bes_devel("[WSM] Issue unjoin command (RX).\n");
wsm_lock_tx_async(hw_priv);
if (queue_work(hw_priv->workqueue,
&priv->unjoin_work) <= 0) {
wsm_unlock_tx(hw_priv);
}
#ifdef CONFIG_PM
else if(bes2600_suspend_status_get(hw_priv)) {
bes2600_pending_unjoin_set(hw_priv, priv->if_id);
}
#endif
if (bes2600_chrdev_wakeup_by_event_get() == WAKEUP_EVENT_PEER_DETACH)
bes2600_chrdev_wifi_update_wakeup_reason(WAKEUP_REASON_WIFI_DEAUTH_DISASSOC, 0);
}
}
bes2600_chrdev_wakeup_by_event_set(WAKEUP_EVENT_NONE);
}
hw_priv->wsm_cbc.rx(priv, &rx, skb_p);
if (*skb_p)
skb_push(*skb_p, hdr_len);
spin_unlock(&priv->vif_lock);
}
return 0;
underflow:
return -EINVAL;
}
static int wsm_event_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf,
int interface_link_id)
{
int first;
struct bes2600_wsm_event *event;
struct bes2600_vif *priv;
if (!is_hardware_cw1250(hw_priv) && !is_hardware_cw1260(hw_priv))
interface_link_id = 0;
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, interface_link_id);
if (unlikely(!priv)) {
bes_devel("[WSM] Not find corresponding interface\n");
return 0;
}
if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED)) {
/* STA is stopped. */
spin_unlock(&priv->vif_lock);
return 0;
}
spin_unlock(&priv->vif_lock);
event = kzalloc(sizeof(struct bes2600_wsm_event), GFP_KERNEL);
event->evt.eventId = __le32_to_cpu(WSM_GET32(buf));
event->evt.eventData = __le32_to_cpu(WSM_GET32(buf));
event->if_id = interface_link_id;
bes_devel("[WSM] Event: %d(%d)\n",
event->evt.eventId, event->evt.eventData);
spin_lock(&hw_priv->event_queue_lock);
first = list_empty(&hw_priv->event_queue);
list_add_tail(&event->link, &hw_priv->event_queue);
spin_unlock(&hw_priv->event_queue_lock);
if (first)
queue_work(hw_priv->workqueue, &hw_priv->event_handler);
return 0;
underflow:
kfree(event);
return -EINVAL;
}
/* TODO:COMBO:Make this perVIFF once mac80211 support is available */
static int wsm_channel_switch_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
wsm_unlock_tx(hw_priv); /* Re-enable datapath */
WARN_ON(WSM_GET32(buf));
hw_priv->channel_switch_in_progress = 0;
wake_up(&hw_priv->channel_switch_done);
if (hw_priv->wsm_cbc.channel_switch)
hw_priv->wsm_cbc.channel_switch(hw_priv);
return 0;
underflow:
return -EINVAL;
}
static int wsm_set_pm_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
struct wsm_set_pm_complete arg;
arg.status = WSM_GET32(buf);
arg.psm = WSM_GET8(buf);
if(arg.status == WSM_STATUS_SUCCESS) {
bes2600_pwr_notify_ps_changed(hw_priv, arg.psm);
} else {
bes_err("[WSM] PM Ind status:%d psm:%d\n", arg.status, arg.psm);
}
return 0;
underflow:
return -EINVAL;
}
static int wsm_scan_complete_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
#ifdef ROAM_OFFLOAD
if(hw_priv->auto_scanning == 0)
wsm_oper_unlock(hw_priv);
#else
wsm_oper_unlock(hw_priv);
#endif /*ROAM_OFFLOAD*/
if (hw_priv->wsm_cbc.scan_complete) {
struct wsm_scan_complete arg;
arg.status = WSM_GET32(buf);
arg.psm = WSM_GET8(buf);
arg.numChannels = WSM_GET8(buf);
hw_priv->wsm_cbc.scan_complete(hw_priv, &arg);
}
return 0;
underflow:
return -EINVAL;
}
static int wsm_find_complete_indication(struct bes2600_common *hw_priv,
struct wsm_buf *buf)
{
/* TODO: Implement me. */
//STUB();
return 0;
}
static int wsm_suspend_resume_indication(struct bes2600_common *hw_priv,
int interface_link_id,
struct wsm_buf *buf)
{
if (hw_priv->wsm_cbc.suspend_resume) {
u32 flags;
struct wsm_suspend_resume arg;
struct bes2600_vif *priv;
if (is_hardware_cw1250(hw_priv) ||
is_hardware_cw1260(hw_priv)) {
int i;
arg.if_id = interface_link_id;
/* TODO:COMBO: Extract bitmap from suspend-resume
* TX indication */
bes2600_for_each_vif(hw_priv, priv, i) {
if (!priv)
continue;
if (priv->join_status ==
BES2600_JOIN_STATUS_AP) {
arg.if_id = priv->if_id;
break;
}
arg.link_id = 0;
}
} else {
arg.if_id = 0;
arg.link_id = interface_link_id;
}
flags = WSM_GET32(buf);
arg.stop = !(flags & 1);
arg.multicast = !!(flags & 8);
arg.queue = (flags >> 1) & 3;
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, arg.if_id);
if (unlikely(!priv)) {
bes_devel("[WSM] suspend-resume indication"
" for removed interface!\n");
return 0;
}
hw_priv->wsm_cbc.suspend_resume(priv, &arg);
spin_unlock(&priv->vif_lock);
}
return 0;
underflow:
return -EINVAL;
}
/**
* signaling cmd confirm.
*/
int wsm_driver_rf_cmd_confirm(struct bes2600_common *hw_priv, void *arg, struct wsm_buf *buf)
{
int ret = 0;
u32 cmd_type;
struct wsm_mcu_hdr *msg_hdr = (struct wsm_mcu_hdr *)(buf->begin);
cmd_type = __le32_to_cpu(msg_hdr->cmd_type);
buf->data += sizeof(struct wsm_mcu_hdr) - sizeof(struct wsm_hdr);
switch (cmd_type) {
case BES2600_RF_CMD_CALI_TXT_TO_FLASH:
ret = WSM_GET32(buf);
break;
default:
break;
}
return ret;
underflow:
return -EINVAL;
}
/* ******************************************************************** */
/* WSM TX */
int wsm_cmd_send(struct bes2600_common *hw_priv,
struct wsm_buf *buf,
void *arg, u16 cmd, long tmo, int if_id)
{
size_t buf_len = buf->data - buf->begin;
int ret;
if (cmd == 0x0006) /* Write MIB */
bes_devel("[WSM] >>> 0x%.4X [MIB: 0x%.4X] (%lu)\n",
cmd, __le16_to_cpu(((__le16 *)buf->begin)[2]),
(long unsigned)buf_len);
else
bes_devel("[WSM] >>> 0x%.4X (%lu)\n", cmd, (long unsigned)buf_len);
/* Fill HI message header */
/* BH will add sequence number */
/* TODO:COMBO: Add if_id from to the WSM header */
/* if_id == -1 indicates that command is HW specific,
* eg. wsm_configuration which is called during driver initialzation
* (mac80211 .start callback called when first ifce is created. )*/
/* send hw specific commands on if 0 */
if (if_id == -1)
if_id = 0;
((__le16 *)buf->begin)[0] = __cpu_to_le16(buf_len);
if (IS_DRIVER_TO_MCU_CMD(cmd))
((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd);
else
((__le16 *)buf->begin)[1] = __cpu_to_le16(cmd |
((is_hardware_cw1250(hw_priv)|| is_hardware_cw1260(hw_priv)) ?
(if_id << 6) : 0));
#ifdef BES2600_HOST_TIMESTAMP_DEBUG
if (buf->end >= buf->data + 4)
*(u32 *)buf->data = (u32)jiffies_to_msecs(jiffies);
#endif
spin_lock(&hw_priv->wsm_cmd.lock);
BUG_ON(hw_priv->wsm_cmd.ptr);
hw_priv->wsm_cmd.done = 0;
hw_priv->wsm_cmd.ptr = buf->begin;
hw_priv->wsm_cmd.len = buf_len;
hw_priv->wsm_cmd.arg = arg;
hw_priv->wsm_cmd.cmd = cmd;
spin_unlock(&hw_priv->wsm_cmd.lock);
bes2600_tx_loop_record_wsm_cmd(hw_priv, hw_priv->wsm_cmd.ptr);
bes2600_bh_wakeup(hw_priv);
if (unlikely(hw_priv->bh_error)) {
/* Do not wait for timeout if BH is dead. Exit immediately. */
ret = 0;
} else {
long rx_timestamp;
long wsm_cmd_starttime = jiffies;
long wsm_cmd_runtime;
long wsm_cmd_max_tmo = WSM_CMD_DEFAULT_TIMEOUT;
/* Give start cmd a little more time */
if (tmo == WSM_CMD_START_TIMEOUT)
wsm_cmd_max_tmo = WSM_CMD_START_TIMEOUT;
/* Firmware prioritizes data traffic over control confirm.
* Loop below checks if data was RXed and increases timeout
* accordingly. */
do {
/* It's safe to use unprotected access to
* wsm_cmd.done here */
ret = wait_event_timeout(
hw_priv->wsm_cmd_wq,
hw_priv->wsm_cmd.done, tmo);
rx_timestamp = jiffies - hw_priv->rx_timestamp;
wsm_cmd_runtime = jiffies - wsm_cmd_starttime;
if (unlikely(rx_timestamp < 0) || wsm_cmd_runtime < 0)
rx_timestamp = tmo + 1;
} while (!ret && rx_timestamp <= tmo &&
wsm_cmd_runtime < wsm_cmd_max_tmo);
}
if (unlikely(ret == 0)) {
u16 raceCheck;
spin_lock(&hw_priv->wsm_cmd.lock);
raceCheck = hw_priv->wsm_cmd.cmd;
hw_priv->wsm_cmd.arg = NULL;
hw_priv->wsm_cmd.ptr = NULL;
spin_unlock(&hw_priv->wsm_cmd.lock);
/* Race condition check to make sure _confirm is not called
* after exit of _send */
if (raceCheck == 0xFFFF) {
/* If wsm_handle_rx got stuck in _confirm we will hang
* system there. It's better than silently currupt
* stack or heap, isn't it? */
BUG_ON(wait_event_timeout(
hw_priv->wsm_cmd_wq,
hw_priv->wsm_cmd.done,
WSM_CMD_LAST_CHANCE_TIMEOUT) <= 0);
}
/* Kill BH thread to report the error to the top layer. */
//hw_priv->bh_error = 1;
wake_up(&hw_priv->bh_wq);
ret = -ETIMEDOUT;
} else {
spin_lock(&hw_priv->wsm_cmd.lock);
hw_priv->wsm_cmd.arg = NULL;
hw_priv->wsm_cmd.ptr = NULL;
BUG_ON(!hw_priv->wsm_cmd.done);
ret = hw_priv->wsm_cmd.ret;
spin_unlock(&hw_priv->wsm_cmd.lock);
}
bes2600_tx_loop_clear_wsm_cmd(hw_priv);
wsm_buf_reset(buf);
return ret;
}
/* ******************************************************************** */
/* WSM TX port control */
void wsm_lock_tx(struct bes2600_common *hw_priv)
{
wsm_cmd_lock(hw_priv);
if (atomic_add_return(1, &hw_priv->tx_lock) == 1) {
if (wsm_flush_tx(hw_priv))
bes_devel("[WSM] TX is locked.\n");
}
wsm_cmd_unlock(hw_priv);
}
void wsm_vif_lock_tx(struct bes2600_vif *priv)
{
struct bes2600_common *hw_priv = priv->hw_priv;
wsm_cmd_lock(hw_priv);
if (atomic_add_return(1, &hw_priv->tx_lock) == 1) {
if (wsm_vif_flush_tx(priv))
bes_devel("[WSM] TX is locked for"
" if_id %d.\n", priv->if_id);
}
wsm_cmd_unlock(hw_priv);
}
void wsm_lock_tx_async(struct bes2600_common *hw_priv)
{
if (atomic_add_return(1, &hw_priv->tx_lock) == 1)
bes_devel("[WSM] TX is locked (async).\n");
}
bool wsm_flush_tx(struct bes2600_common *hw_priv)
{
unsigned long timestamp = jiffies;
bool pending = false;
long timeout;
int i;
/* Flush must be called with TX lock held. */
BUG_ON(!atomic_read(&hw_priv->tx_lock));
/* First check if we really need to do something.
* It is safe to use unprotected access, as hw_bufs_used
* can only decrements. */
if (!hw_priv->hw_bufs_used)
return true;
if (hw_priv->bh_error) {
/* In case of failure do not wait for magic. */
bes_err("[WSM] Fatal error occured, "
"will not flush TX.\n");
return false;
} else {
/* Get a timestamp of "oldest" frame */
for (i = 0; i < 4; ++i)
pending |= bes2600_queue_get_xmit_timestamp(
&hw_priv->tx_queue[i],
&timestamp, CW12XX_ALL_IFS,
0xffffffff);
/* It is allowed to lock TX with only a command in the pipe. */
if (!pending)
return true;
timeout = timestamp + WSM_CMD_LAST_CHANCE_TIMEOUT - jiffies;
if (timeout < 0 || wait_event_timeout(hw_priv->bh_evt_wq,
!hw_priv->hw_bufs_used,
timeout) <= 0) {
/* Hmmm... Not good. Frame had stuck in firmware. */
bes2600_chrdev_wifi_force_close(hw_priv, true);
}
/* Ok, everything is flushed. */
return true;
}
}
bool wsm_vif_flush_tx(struct bes2600_vif *priv)
{
struct bes2600_common *hw_priv = priv->hw_priv;
unsigned long timestamp = jiffies;
unsigned long timeout;
int i;
int if_id = priv->if_id;
/* Flush must be called with TX lock held. */
BUG_ON(!atomic_read(&hw_priv->tx_lock));
/* First check if we really need to do something.
* It is safe to use unprotected access, as hw_bufs_used
* can only decrements. */
if (!hw_priv->hw_bufs_used_vif[priv->if_id])
return true;
if (hw_priv->bh_error) {
/* In case of failure do not wait for magic. */
bes_err( "[WSM] Fatal error occured, "
"will not flush TX.\n");
return false;
} else {
/* Get a timestamp of "oldest" frame */
for (i = 0; i < 4; ++i)
bes2600_queue_get_xmit_timestamp(
&hw_priv->tx_queue[i],
&timestamp, if_id,
0xffffffff);
/* It is allowed to lock TX with only a command in the pipe. */
if (!hw_priv->hw_bufs_used_vif[if_id])
return true;
/* calculate wait time */
timeout = timestamp + WSM_CMD_LAST_CHANCE_TIMEOUT;
if (timeout >= jiffies)
timeout -= jiffies;
else
timeout += (ULONG_MAX - jiffies);
/* wait packets on vif to be flushed */
if (wait_event_timeout(hw_priv->bh_evt_wq,
!hw_priv->hw_bufs_used_vif[if_id],
timeout) <= 0) {
/* Hmmm... Not good. Frame had stuck in firmware. */
bes2600_chrdev_wifi_force_close(hw_priv, true);
}
/* Ok, everything is flushed. */
return true;
}
}
void wsm_unlock_tx(struct bes2600_common *hw_priv)
{
int tx_lock;
if (hw_priv->bh_error)
bes_err("fatal error occured, unlock is unsafe\n");
else {
tx_lock = atomic_sub_return(1, &hw_priv->tx_lock);
if (tx_lock < 0) {
BUG_ON(1);
} else if (tx_lock == 0) {
bes2600_bh_wakeup(hw_priv);
bes_devel("[WSM] TX is unlocked.\n");
}
}
}
/* ******************************************************************** */
/* WSM RX */
int wsm_handle_exception(struct bes2600_common *hw_priv, u8 *data, size_t len)
{
#if defined(CONFIG_BES2600_USE_STE_EXTENSIONS)
struct bes2600_vif *priv = NULL;
int if_id = 0;
#endif
struct wsm_buf buf;
u32 reason;
u32 reg[18];
char fname[48];
size_t i;
static const char * const reason_str[] = {
"undefined instruction",
"prefetch abort",
"data abort",
"unknown error",
};
#if defined(CONFIG_BES2600_USE_STE_EXTENSIONS)
/* Send the event upwards on the FW exception */
bes2600_pm_stay_awake(&hw_priv->pm_state, 3*HZ);
spin_lock(&hw_priv->vif_list_lock);
bes2600_for_each_vif(hw_priv, priv, if_id) {
if (!priv)
continue;
ieee80211_driver_hang_notify(priv->vif, GFP_KERNEL);
}
spin_unlock(&hw_priv->vif_list_lock);
#endif
buf.begin = buf.data = data;
buf.end = &buf.begin[len];
reason = WSM_GET32(&buf);
for (i = 0; i < ARRAY_SIZE(reg); ++i)
reg[i] = WSM_GET32(&buf);
WSM_GET(&buf, fname, sizeof(fname));
if (reason < 4)
wiphy_err(hw_priv->hw->wiphy,
"Firmware exception: %s.\n",
reason_str[reason]);
else
wiphy_err(hw_priv->hw->wiphy,
"Firmware assert at %.*s, line %d\n",
(int)sizeof(fname), fname, (int)reg[1]);
for (i = 0; i < 12; i += 4)
wiphy_err(hw_priv->hw->wiphy,
"R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X, R%d: 0x%.8X,\n",
(int)i + 0, reg[i + 0], (int)i + 1, reg[i + 1],
(int)i + 2, reg[i + 2], (int)i + 3, reg[i + 3]);
wiphy_err(hw_priv->hw->wiphy,
"R12: 0x%.8X, SP: 0x%.8X, LR: 0x%.8X, PC: 0x%.8X,\n",
reg[i + 0], reg[i + 1], reg[i + 2], reg[i + 3]);
i += 4;
wiphy_err(hw_priv->hw->wiphy,
"CPSR: 0x%.8X, SPSR: 0x%.8X\n",
reg[i + 0], reg[i + 1]);
print_hex_dump_bytes("R1: ", DUMP_PREFIX_NONE,
fname, sizeof(fname));
return 0;
underflow:
wiphy_err(hw_priv->hw->wiphy,
"Firmware exception.\n");
print_hex_dump_bytes("Exception: ", DUMP_PREFIX_NONE,
data, len);
return -EINVAL;
}
EXPORT_SYMBOL(wsm_handle_exception);
static int wsm_bt_ts_request(struct bes2600_common *hw_priv, struct wsm_buf *buf)
{
#ifdef WIFI_BT_COEXIST_EPTA_ENABLE
uint32_t type;
type = __le32_to_cpu(((struct wsm_mcu_hdr *)(buf->begin))->cmd_type);
bbt_change_current_status(hw_priv, type);
return 0;
#else
return 0;
#endif
}
int wsm_handle_rx(struct bes2600_common *hw_priv, int id,
struct wsm_hdr *wsm, struct sk_buff **skb_p)
{
int ret = 0;
struct wsm_buf wsm_buf;
// struct bes2600_vif *priv = NULL;
// int i = 0;
int interface_link_id = (id >> 6) & 0x0F;
u32 ind_confirm_label = 0x0; /* wsm to mcu cmd ind & cnfirm label */
#ifdef ROAM_OFFLOAD
#if 0
struct bes2600_vif *priv;
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, interface_link_id);
if (unlikely(!priv)) {
WARN_ON(1);
return 0;
}
spin_unlock(&priv->vif_lock);
#endif
#endif/*ROAM_OFFLOAD*/
/* Strip link id. */
id &= ~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
wsm_buf.begin = (u8 *)&wsm[0];
wsm_buf.data = (u8 *)&wsm[1];
wsm_buf.end = &wsm_buf.begin[__le32_to_cpu(wsm->len)];
bes_devel("[WSM] <<< 0x%.4X (%ld)\n", id,
(long)(wsm_buf.end - wsm_buf.begin));
if (IS_DRIVER_TO_MCU_CMD(id))
ind_confirm_label = __le32_to_cpu(((struct wsm_mcu_hdr *)wsm)->handle_label);
if (id == 0x404) {
ret = wsm_tx_confirm(hw_priv, &wsm_buf, interface_link_id);
#ifdef MCAST_FWDING
#if 1
} else if (id == 0x422) {
ret = wsm_give_buffer_confirm(hw_priv, &wsm_buf);
#endif
#endif
} else if (id == 0x41E) {
ret = wsm_multi_tx_confirm(hw_priv, &wsm_buf,
interface_link_id);
} else if (WSM_CONFIRM_CONDITION(id, ind_confirm_label)) {
void *wsm_arg;
u16 wsm_cmd;
/* Do not trust FW too much. Protection against repeated
* response and race condition removal (see above). */
spin_lock(&hw_priv->wsm_cmd.lock);
wsm_arg = hw_priv->wsm_cmd.arg;
wsm_cmd = hw_priv->wsm_cmd.cmd &
~WSM_TX_LINK_ID(WSM_TX_LINK_ID_MAX);
hw_priv->wsm_cmd.cmd = 0xFFFF;
spin_unlock(&hw_priv->wsm_cmd.lock);
if (((id & 0x0f00) == 0x0400) && WARN_ON((id & ~0x0400) != wsm_cmd)) {
/* Note that any non-zero is a fatal retcode. */
ret = -EINVAL;
goto out;
}
switch (id) {
case 0x0409:
/* Note that wsm_arg can be NULL in case of timeout in
* wsm_cmd_send(). */
if (likely(wsm_arg))
ret = wsm_configuration_confirm(hw_priv,
wsm_arg,
&wsm_buf);
break;
case 0x0405:
if (likely(wsm_arg))
ret = wsm_read_mib_confirm(hw_priv, wsm_arg,
&wsm_buf);
break;
case 0x0406:
if (likely(wsm_arg))
ret = wsm_write_mib_confirm(hw_priv, wsm_arg,
&wsm_buf,
interface_link_id);
break;
case 0x040B:
if (likely(wsm_arg))
ret = wsm_join_confirm(hw_priv, wsm_arg,
&wsm_buf);
break;
#ifdef MCAST_FWDING
case 0x0423: /* req buffer cfm*/
if (likely(wsm_arg)){
bes2600_for_each_vif(hw_priv, priv, i) {
if (priv && (priv->join_status == BES2600_JOIN_STATUS_AP))
ret = wsm_request_buffer_confirm(priv,
wsm_arg, &wsm_buf);
}
}
break;
#endif
case 0x0407: /* start-scan */
#ifdef ROAM_OFFLOAD
if (hw_priv->auto_scanning) {
if (atomic_read(&hw_priv->scan.in_progress)) {
hw_priv->auto_scanning = 0;
}
else {
wsm_oper_unlock(hw_priv);
up(&hw_priv->scan.lock);
}
}
#endif /*ROAM_OFFLOAD*/
case 0x0408: /* stop-scan */
case 0x040A: /* wsm_reset */
case 0x040C: /* add_key */
case 0x040D: /* remove_key */
case 0x0410: /* wsm_set_pm */
case 0x0411: /* set_bss_params */
case 0x0412: /* set_tx_queue_params */
case 0x0413: /* set_edca_params */
case 0x0416: /* switch_channel */
case 0x0417: /* start */
case 0x0418: /* beacon_transmit */
case 0x0419: /* start_find */
case 0x041A: /* stop_find */
case 0x041B: /* update_ie */
case 0x041C: /* map_link */
case 0x0429: /* epta */
WARN_ON(wsm_arg != NULL);
ret = wsm_generic_confirm(hw_priv, wsm_arg, &wsm_buf);
if (ret)
wiphy_warn(hw_priv->hw->wiphy,
"wsm_generic_confirm "
"failed for request 0x%.4X.\n",
id & ~0x0400);
break;
#ifdef CONFIG_BES2600_TESTMODE
case 0x0C25:
ret = wsm_vendor_rf_cmd_confirm(hw_priv, wsm_arg, &wsm_buf);
break;
#endif /* CONFIG_BES2600_TESTMODE */
case 0x0C27:
ret = wsm_driver_rf_cmd_confirm(hw_priv, wsm_arg, &wsm_buf);
break;
#ifdef BES_UNIFIED_PM
case 0x0424: /* wifi sleep disable */
break;
#endif
default:
BUG_ON(1);
}
spin_lock(&hw_priv->wsm_cmd.lock);
hw_priv->wsm_cmd.ret = ret;
hw_priv->wsm_cmd.done = 1;
spin_unlock(&hw_priv->wsm_cmd.lock);
ret = 0; /* Error response from device should ne stop BH. */
wake_up(&hw_priv->wsm_cmd_wq);
} else if ((id & 0x0f00) == 0x0800) {
switch (id) {
case 0x0801:
ret = wsm_startup_indication(hw_priv, &wsm_buf);
break;
case 0x0804:
ret = wsm_receive_indication(hw_priv, interface_link_id,
&wsm_buf, skb_p);
break;
case 0x0805:
ret = wsm_event_indication(hw_priv, &wsm_buf,
interface_link_id);
break;
case 0x080A:
ret = wsm_channel_switch_indication(hw_priv, &wsm_buf);
break;
case 0x0809:
ret = wsm_set_pm_indication(hw_priv, &wsm_buf);
break;
case 0x0806:
#ifdef ROAM_OFFLOAD
if(hw_priv->auto_scanning && hw_priv->frame_rcvd) {
struct bes2600_vif *priv;
hw_priv->frame_rcvd = 0;
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, hw_priv->scan.if_id);
if (unlikely(!priv)) {
WARN_ON(1);
return 0;
}
spin_unlock(&priv->vif_lock);
if (hw_priv->beacon) {
struct wsm_scan_complete *scan_cmpl = \
(struct wsm_scan_complete *) \
((u8 *)wsm + sizeof(struct wsm_hdr));
struct ieee80211_rx_status *rhdr = \
IEEE80211_SKB_RXCB(hw_priv->beacon);
rhdr->signal = (s8)scan_cmpl->reserved;
if (!priv->cqm_use_rssi) {
rhdr->signal = rhdr->signal / 2 - 110;
}
if (!hw_priv->beacon_bkp)
hw_priv->beacon_bkp = \
skb_copy(hw_priv->beacon, GFP_ATOMIC);
ieee80211_rx_ni(hw_priv->hw, hw_priv->beacon);
hw_priv->beacon = hw_priv->beacon_bkp;
hw_priv->beacon_bkp = NULL;
}
bes_devel("[WSM] Send Testmode Event.\n");
#ifdef CONFIG_BES2600_TESTMODE
bes2600_testmode_event(priv->hw->wiphy,
BES_MSG_NEW_SCAN_RESULTS, 0,
0, GFP_KERNEL);
#endif
}
#endif /*ROAM_OFFLOAD*/
ret = wsm_scan_complete_indication(hw_priv, &wsm_buf);
break;
case 0x080B:
ret = wsm_find_complete_indication(hw_priv, &wsm_buf);
break;
case 0x080C:
ret = wsm_suspend_resume_indication(hw_priv,
interface_link_id, &wsm_buf);
break;
default:
//STUB();
break;
}
} else if (WSM_TO_MCU_CMD_IND_CONDITION(id, ind_confirm_label)) {
switch (id) {
#ifdef CONFIG_BES2600_TESTMODE
case 0x0C25:
ret = wsm_vendor_rf_test_indication(hw_priv, &wsm_buf);
break;
#endif /* CONFIG_BES2600_TESTMODE */
case 0x0C30:
ret = wsm_bt_ts_request(hw_priv, &wsm_buf);
break;
default:
break;
}
} else {
WARN_ON(1);
ret = -EINVAL;
}
out:
return ret;
}
EXPORT_SYMBOL(wsm_handle_rx);
static bool wsm_handle_tx_data(struct bes2600_vif *priv,
const struct wsm_tx *wsm,
const struct ieee80211_tx_info *tx_info,
struct bes2600_txpriv *txpriv,
struct bes2600_queue *queue)
{
struct bes2600_common *hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
#ifdef P2P_MULTIVIF
struct bes2600_vif *p2p_if_vif = NULL;
#endif
bool handled = false;
const struct ieee80211_hdr *frame =
(struct ieee80211_hdr *) &((u8 *)wsm)[txpriv->offset];
__le16 fctl = frame->frame_control;
enum {
doProbe,
doDrop,
doJoin,
doOffchannel,
doWep,
doTx,
} action = doTx;
hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
#ifdef P2P_MULTIVIF
if (priv->if_id == CW12XX_GENERIC_IF_ID)
p2p_if_vif = __cw12xx_hwpriv_to_vifpriv(hw_priv, 2);
#endif
frame = (struct ieee80211_hdr *) &((u8 *)wsm)[txpriv->offset];
fctl = frame->frame_control;
switch (priv->mode) {
case NL80211_IFTYPE_P2P_DEVICE:
case NL80211_IFTYPE_STATION:
if (unlikely((priv->join_status == BES2600_JOIN_STATUS_STA) &&
ieee80211_is_nullfunc(fctl))) {
spin_lock(&priv->bss_loss_lock);
if (priv->bss_loss_status == BES2600_BSS_LOSS_CHECKING) {
priv->bss_loss_status = BES2600_BSS_LOSS_CONFIRMING;
priv->bss_loss_confirm_id = wsm->packetID;
}
spin_unlock(&priv->bss_loss_lock);
} else if (unlikely(
(priv->join_status <= BES2600_JOIN_STATUS_MONITOR) ||
memcmp(frame->addr1, priv->join_bssid,
sizeof(priv->join_bssid)))) {
#ifdef P2P_MULTIVIF
if (p2p_if_vif && (p2p_if_vif->join_status >
BES2600_JOIN_STATUS_MONITOR)
&& (priv->join_status
< BES2600_JOIN_STATUS_MONITOR)) {
/*
* Post group formation, frame transmission on p2p0
* interafce should not use offchannel/generic channel.
* Instead, the frame should be transmitted on interafce
* 1. This is needed by wsc fw.
*/
action = doTx;
txpriv->raw_if_id = 0;
} else
#endif
if (ieee80211_is_auth(fctl))
action = doJoin;
else if (ieee80211_is_probe_req(fctl))
action = doTx;
else if (memcmp(frame->addr1, priv->join_bssid,
sizeof(priv->join_bssid)) &&
(priv->join_status ==
BES2600_JOIN_STATUS_STA) &&
(ieee80211_is_data(fctl))) {
action = doDrop;
}
else if (priv->join_status >=
BES2600_JOIN_STATUS_MONITOR)
action = doTx;
else if (get_interface_id_scanning(hw_priv) != -1) {
wiphy_warn(priv->hw->wiphy,
"Scan ONGOING dropping offchannel"
" eligible frame.\n");
action = doDrop;
}
else
action = doTx;
}
break;
case NL80211_IFTYPE_AP:
if (unlikely(!priv->join_status))
action = doDrop;
else if (unlikely(!(BIT(txpriv->raw_link_id) &
(BIT(0) | priv->link_id_map)))) {
wiphy_warn(priv->hw->wiphy,
"A frame with expired link id "
"is dropped.\n");
action = doDrop;
}
if (bes2600_queue_get_generation(wsm->packetID) >
BES2600_MAX_REQUEUE_ATTEMPTS) {
/* HACK!!! WSM324 firmware has tendency to requeue
* multicast frames in a loop, causing performance
* drop and high power consumption of the driver.
* In this situation it is better just to drop
* the problematic frame. */
wiphy_warn(priv->hw->wiphy,
"Too many attempts "
"to requeue a frame. "
"Frame is dropped.\n");
action = doDrop;
}
break;
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
//STUB();
case NL80211_IFTYPE_MONITOR:
default:
action = doDrop;
break;
}
if (action == doTx) {
if (unlikely(ieee80211_is_probe_req(fctl))) {
#ifdef CONFIG_BES2600_TESTMODE
if (hw_priv->enable_advance_scan &&
(priv->join_status == BES2600_JOIN_STATUS_STA) &&
(hw_priv->advanceScanElems.scanMode ==
BES2600_SCAN_MEASUREMENT_ACTIVE))
/* If Advance Scan is Requested on Active Scan
* then transmit the Probe Request */
action = doTx;
else
#endif
action = doProbe;
} else if ((fctl & __cpu_to_le32(IEEE80211_FCTL_PROTECTED)) &&
tx_info->control.hw_key &&
unlikely(tx_info->control.hw_key->keyidx !=
priv->wep_default_key_id) &&
(tx_info->control.hw_key->cipher ==
WLAN_CIPHER_SUITE_WEP40 ||
tx_info->control.hw_key->cipher ==
WLAN_CIPHER_SUITE_WEP104))
action = doWep;
}
switch (action) {
case doProbe:
{
/* An interesting FW "feature". Device filters
* probe responses.
* The easiest way to get it back is to convert
* probe request into WSM start_scan command. */
bes_devel("[WSM] Convert probe request to scan.\n");
wsm_lock_tx_async(hw_priv);
hw_priv->pending_frame_id = __le32_to_cpu(wsm->packetID);
queue_delayed_work(hw_priv->workqueue,
&hw_priv->scan.probe_work, 0);
handled = true;
}
break;
case doDrop:
{
/* See detailed description of "join" below.
* We are dropping everything except AUTH in non-joined mode. */
bes_err("[WSM] Drop frame (0x%.4X).\n", fctl);
#ifdef CONFIG_BES2600_TESTMODE
BUG_ON(bes2600_queue_remove(hw_priv, queue,
__le32_to_cpu(wsm->packetID)));
#else
BUG_ON(bes2600_queue_remove(queue,
__le32_to_cpu(wsm->packetID)));
#endif /*CONFIG_BES2600_TESTMODE*/
handled = true;
}
break;
case doJoin:
{
/* There is one more interesting "feature"
* in FW: it can't do RX/TX before "join".
* "Join" here is not an association,
* but just a syncronization between AP and STA.
* priv->join_status is used only in bh thread and does
* not require protection */
bes_devel("[WSM] Issue join command.\n");
wsm_lock_tx_async(hw_priv);
hw_priv->pending_frame_id = __le32_to_cpu(wsm->packetID);
#ifdef WIFI_BT_COEXIST_EPTA_ENABLE
if (hw_priv->channel->band != NL80211_BAND_2GHZ)
bwifi_change_current_status(hw_priv, BWIFI_STATUS_CONNECTING_5G);
else
bwifi_change_current_status(hw_priv, BWIFI_STATUS_CONNECTING);
#endif
if (queue_work(hw_priv->workqueue, &priv->join_work) <= 0)
wsm_unlock_tx(hw_priv);
handled = true;
}
break;
case doOffchannel:
{
bes_devel("[WSM] Offchannel TX request.\n");
wsm_lock_tx_async(hw_priv);
hw_priv->pending_frame_id = __le32_to_cpu(wsm->packetID);
if (queue_work(hw_priv->workqueue, &priv->offchannel_work) <= 0)
wsm_unlock_tx(hw_priv);
handled = true;
}
break;
case doWep:
{
bes_devel( "[WSM] Issue set_default_wep_key.\n");
wsm_lock_tx_async(hw_priv);
priv->wep_default_key_id = tx_info->control.hw_key->keyidx;
hw_priv->pending_frame_id = __le32_to_cpu(wsm->packetID);
if (queue_work(hw_priv->workqueue, &priv->wep_key_work) <= 0)
wsm_unlock_tx(hw_priv);
handled = true;
}
break;
case doTx:
{
#if 0
/* Kept for history. If you want to implement wsm->more,
* make sure you are able to send a frame after that. */
wsm->more = (count > 1) ? 1 : 0;
if (wsm->more) {
/* HACK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* It's undocumented in WSM spec, but BES2600 hangs
* if 'more' is set and no TX is performed due to TX
* buffers limitation. */
if (priv->hw_bufs_used + 1 ==
priv->wsm_caps.numInpChBufs)
wsm->more = 0;
}
/* BUG!!! FIXME: we can't use 'more' at all: we don't know
* future. It could be a request from upper layer with TX lock
* requirements (scan, for example). If "more" is set device
* will not send data and wsm_tx_lock() will fail...
* It's not obvious how to fix this deadlock. Any ideas?
* As a workaround more is set to 0. */
wsm->more = 0;
#endif /* 0 */
if (ieee80211_is_deauth(fctl) &&
priv->mode != NL80211_IFTYPE_AP) {
/* Shedule unjoin work */
bes_devel("[WSM] Issue unjoin command (TX).\n");
atomic_set(&priv->connect_in_process, 0);
#if 0
wsm->more = 0;
#endif /* 0 */
#ifdef WIFI_BT_COEXIST_EPTA_ENABLE
bwifi_change_current_status(hw_priv, BWIFI_STATUS_DISCONNECTING);
#endif
wsm_lock_tx_async(hw_priv);
if (queue_work(hw_priv->workqueue,
&priv->unjoin_work) <= 0)
wsm_unlock_tx(hw_priv);
}
}
break;
}
return handled;
}
static int bes2600_get_prio_queue(struct bes2600_vif *priv,
u32 link_id_map, int *total)
{
struct bes2600_common *hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
static u32 urgent;
struct wsm_edca_queue_params *edca;
unsigned score, best = -1;
int winner = -1;
int queued;
int i;
urgent = BIT(priv->link_id_after_dtim) | BIT(priv->link_id_uapsd);
/* search for a winner using edca params */
for (i = 0; i < 4; ++i) {
queued = bes2600_queue_get_num_queued(priv,
&hw_priv->tx_queue[i],
link_id_map);
if (!queued)
continue;
*total += queued;
edca = &priv->edca.params[i];
score = ((edca->aifns + edca->cwMin) << 16) +
(edca->cwMax - edca->cwMin) *
(get_random_u32() & 0xFFFF);
if (score < best && (winner < 0 || i != 3)) {
best = score;
winner = i;
}
}
/* override winner if bursting */
if (winner >= 0 && hw_priv->tx_burst_idx >= 0 &&
winner != hw_priv->tx_burst_idx &&
!bes2600_queue_get_num_queued(priv,
&hw_priv->tx_queue[winner],
link_id_map & urgent) &&
bes2600_queue_get_num_queued(priv,
&hw_priv->tx_queue[hw_priv->tx_burst_idx],
link_id_map))
winner = hw_priv->tx_burst_idx;
return winner;
}
static int wsm_get_tx_queue_and_mask(struct bes2600_vif *priv,
struct bes2600_queue **queue_p,
u32 *tx_allowed_mask_p,
bool *more)
{
struct bes2600_common *hw_priv = cw12xx_vifpriv_to_hwpriv(priv);
int idx;
u32 tx_allowed_mask;
int total = 0;
/* Search for a queue with multicast frames buffered */
if (priv->tx_multicast) {
tx_allowed_mask = BIT(priv->link_id_after_dtim);
idx = bes2600_get_prio_queue(priv,
tx_allowed_mask, &total);
if (idx >= 0) {
*more = total > 1;
goto found;
}
}
/* Search for unicast traffic */
tx_allowed_mask = ~priv->sta_asleep_mask;
tx_allowed_mask |= BIT(priv->link_id_uapsd);
if (priv->sta_asleep_mask) {
tx_allowed_mask |= priv->pspoll_mask;
tx_allowed_mask &= ~BIT(priv->link_id_after_dtim);
} else {
tx_allowed_mask |= BIT(priv->link_id_after_dtim);
}
idx = bes2600_get_prio_queue(priv,
tx_allowed_mask, &total);
if (idx < 0)
return -ENOENT;
found:
*queue_p = &hw_priv->tx_queue[idx];
*tx_allowed_mask_p = tx_allowed_mask;
return 0;
}
int wsm_get_tx(struct bes2600_common *hw_priv, u8 **data,
size_t *tx_len, int *burst, int *vif_selected)
{
struct wsm_tx *wsm = NULL;
struct ieee80211_tx_info *tx_info;
struct bes2600_queue *queue = NULL;
int queue_num;
u32 tx_allowed_mask = 0;
struct bes2600_txpriv *txpriv = NULL;
#ifdef P2P_MULTIVIF
int first = 1;
#endif
/*
* Count was intended as an input for wsm->more flag.
* During implementation it was found that wsm->more
* is not usable, see details above. It is kept just
* in case you would like to try to implement it again.
*/
int count = 0;
#ifdef P2P_MULTIVIF
int if_pending = CW12XX_MAX_VIFS - 1;
#else
int if_pending = 1;
#endif
/* More is used only for broadcasts. */
bool more = false;
count = bes2600_itp_get_tx(hw_priv, data, tx_len, burst);
if (count)
return count;
if (hw_priv->wsm_cmd.ptr) {
++count;
spin_lock(&hw_priv->wsm_cmd.lock);
BUG_ON(!hw_priv->wsm_cmd.ptr);
*data = hw_priv->wsm_cmd.ptr;
*tx_len = hw_priv->wsm_cmd.len;
*burst = 1;
*vif_selected = -1;
spin_unlock(&hw_priv->wsm_cmd.lock);
} else {
for (;;) {
int ret;
struct bes2600_vif *priv;
#if 0
int num_pending_vif0, num_pending_vif1;
#endif
if (atomic_add_return(0, &hw_priv->tx_lock))
break;
/* Keep one buffer reserved for commands. Note
that, hw_bufs_used has already been incremented
before reaching here. */
if (hw_priv->hw_bufs_used >=
hw_priv->wsm_caps.numInpChBufs)
break;
#ifdef P2P_MULTIVIF
if (first) {
first = 0;
hw_priv->if_id_selected = 0;
}
#endif
priv = wsm_get_interface_for_tx(hw_priv);
/* go to next interface ID to select next packet */
#ifdef P2P_MULTIVIF
hw_priv->if_id_selected++;
if(hw_priv->if_id_selected > 2)
hw_priv->if_id_selected = 0;
#else
hw_priv->if_id_selected ^= 1;
#endif
/* There might be no interface before add_interface
* call */
if (!priv) {
if (if_pending) {
#ifdef P2P_MULTIVIF
if_pending--;
#else
if_pending = 0;
#endif
continue;
}
break;
}
#if 0
if (((priv->if_id == 0) &&
(hw_priv->hw_bufs_used_vif[0] >=
CW12XX_FW_VIF0_THROTTLE)) ||
((priv->if_id == 1) &&
(hw_priv->hw_bufs_used_vif[1] >=
CW12XX_FW_VIF1_THROTTLE))) {
spin_unlock(&priv->vif_lock);
if (if_pending) {
if_pending = 0;
continue;
}
break;
}
#endif
/* This can be removed probably: bes2600_vif will not
* be in hw_priv->vif_list (as returned from
* wsm_get_interface_for_tx) until it's fully
* enabled, so statement above will take case of that*/
if (!atomic_read(&priv->enabled)) {
spin_unlock(&priv->vif_lock);
break;
}
/* TODO:COMBO: Find the next interface for which
* packet needs to be found */
spin_lock_bh(&priv->ps_state_lock);
ret = wsm_get_tx_queue_and_mask(priv, &queue,
&tx_allowed_mask, &more);
queue_num = queue - hw_priv->tx_queue;
if (priv->buffered_multicasts &&
(ret || !more) &&
(priv->tx_multicast ||
!priv->sta_asleep_mask)) {
priv->buffered_multicasts = false;
if (priv->tx_multicast) {
priv->tx_multicast = false;
queue_work(hw_priv->workqueue,
&priv->multicast_stop_work);
}
}
spin_unlock_bh(&priv->ps_state_lock);
if (ret) {
spin_unlock(&priv->vif_lock);
#ifdef P2P_MULTIVIF
if (if_pending) {
#else
if (if_pending == 1) {
#endif
#ifdef P2P_MULTIVIF
if_pending--;
#else
if_pending = 0;
#endif
continue;
}
break;
}
if (bes2600_queue_get(queue,
priv->if_id,
tx_allowed_mask,
&wsm, &tx_info, &txpriv)) {
spin_unlock(&priv->vif_lock);
if_pending = 0;
continue;
}
#ifndef P2P_MULTIVIF
{
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *)
&((u8 *)wsm)[txpriv->offset];
bes_devel("QGET-1 %x, off_id %d,"
" if_id %d\n",
hdr->frame_control,
txpriv->offchannel_if_id,
priv->if_id);
}
#endif
if (wsm_handle_tx_data(priv, wsm,
tx_info, txpriv, queue)) {
spin_unlock(&priv->vif_lock);
if_pending = 0;
continue; /* Handled by WSM */
}
wsm->hdr.id &= __cpu_to_le16(
~WSM_TX_IF_ID(WSM_TX_IF_ID_MAX));
#ifdef P2P_MULTIVIF
if (txpriv->raw_if_id)
wsm->hdr.id |= cpu_to_le16(
WSM_TX_IF_ID(txpriv->raw_if_id));
#else
if (txpriv->offchannel_if_id)
wsm->hdr.id |= cpu_to_le16(
WSM_TX_IF_ID(txpriv->offchannel_if_id));
#endif
else
wsm->hdr.id |= cpu_to_le16(
WSM_TX_IF_ID(priv->if_id));
*vif_selected = priv->if_id;
#ifdef ROC_DEBUG
{
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *)
&((u8 *)wsm)[txpriv->offset];
bes_devel("QGET-2 %x, off_id %d,"
" if_id %d\n",
hdr->frame_control,
txpriv->offchannel_if_id,
priv->if_id);
}
#endif
priv->pspoll_mask &= ~BIT(txpriv->raw_link_id);
*data = (u8 *)wsm;
*tx_len = __le16_to_cpu(wsm->hdr.len);
/* allow bursting if txop is set */
if (priv->edca.params[queue_num].txOpLimit)
*burst = min(*burst,
(int)bes2600_queue_get_num_queued(priv,
queue, tx_allowed_mask) + 1);
else
*burst = 1;
/* store index of bursting queue */
if (*burst > 1)
hw_priv->tx_burst_idx = queue_num;
else
hw_priv->tx_burst_idx = -1;
if (more) {
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *)
&((u8 *)wsm)[txpriv->offset];
if(strstr(&priv->ssid[0], "6.1.12")) {
if(hdr->addr1[0] & 0x01 ) {
hdr->frame_control |=
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
}
else {
/* more buffered multicast/broadcast frames
* ==> set MoreData flag in IEEE 802.11 header
* to inform PS STAs */
hdr->frame_control |=
cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
}
bes_devel("[WSM] >>> 0x%.4X (%lu) %p %c\n",
0x0004, (long unsigned)*tx_len, *data,
wsm->more ? 'M' : ' ');
++count;
spin_unlock(&priv->vif_lock);
break;
}
}
return count;
}
void wsm_txed(struct bes2600_common *hw_priv, u8 *data)
{
if (data == hw_priv->wsm_cmd.ptr) {
spin_lock(&hw_priv->wsm_cmd.lock);
hw_priv->wsm_cmd.ptr = NULL;
spin_unlock(&hw_priv->wsm_cmd.lock);
} else {
bes2600_pwr_set_busy_event_async(hw_priv, BES_PWR_LOCK_ON_LMAC_RSP);
}
}
/* ******************************************************************** */
/* WSM buffer */
void wsm_buf_init(struct wsm_buf *buf)
{
BUG_ON(buf->begin);
buf->begin = kmalloc(SDIO_BLOCK_SIZE, GFP_KERNEL | GFP_DMA);
buf->end = buf->begin ? &buf->begin[SDIO_BLOCK_SIZE] : buf->begin;
wsm_buf_reset(buf);
}
void wsm_buf_deinit(struct wsm_buf *buf)
{
kfree(buf->begin);
buf->begin = buf->data = buf->end = NULL;
}
static void wsm_buf_reset(struct wsm_buf *buf)
{
if (buf->begin) {
buf->data = &buf->begin[4];
*(u32 *)buf->begin = 0;
} else
buf->data = buf->begin;
}
static int wsm_buf_reserve(struct wsm_buf *buf, size_t extra_size)
{
size_t pos = buf->data - buf->begin;
size_t size = pos + extra_size;
if (size & (SDIO_BLOCK_SIZE - 1)) {
size &= SDIO_BLOCK_SIZE;
size += SDIO_BLOCK_SIZE;
}
buf->begin = krealloc(buf->begin, size, GFP_KERNEL | GFP_DMA);
if (buf->begin) {
buf->data = &buf->begin[pos];
buf->end = &buf->begin[size];
return 0;
} else {
buf->end = buf->data = buf->begin;
return -ENOMEM;
}
}
static struct bes2600_vif
*wsm_get_interface_for_tx(struct bes2600_common *hw_priv)
{
struct bes2600_vif *priv = NULL, *i_priv;
int i = hw_priv->if_id_selected;
if (is_hardware_cw1250(hw_priv) || 1 /*TODO:COMBO*/) {
spin_lock(&hw_priv->vif_list_lock);
#if 0
bes2600_for_each_vif(hw_priv, i_priv, i) {
if (i_priv) {
priv = i_priv;
spin_lock(&priv->vif_lock);
break;
}
}
#endif
i_priv = hw_priv->vif_list[i] ?
cw12xx_get_vif_from_ieee80211(hw_priv->vif_list[i]) : NULL;
if (i_priv) {
priv = i_priv;
spin_lock(&priv->vif_lock);
}
/* TODO:COMBO:
* Find next interface based on TX bitmap announced by the FW
* Find next interface based on load balancing */
spin_unlock(&hw_priv->vif_list_lock);
} else {
priv = cw12xx_hwpriv_to_vifpriv(hw_priv, 0);
}
return priv;
}
static inline int get_interface_id_scanning(struct bes2600_common *hw_priv)
{
if (hw_priv->scan.req)
return hw_priv->scan.if_id;
else if (hw_priv->scan.direct_probe == 1)
return hw_priv->scan.if_id;
else
return -1;
}
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