blob: ff61ae34ecdf04322dafb49bc4045a6b1c1ff6b2 [file] [log] [blame]
/*
* Copyright (c) 2010-2011 Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "htc.h"
MODULE_AUTHOR("Atheros Communications");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
module_param_named(debug, ath9k_debug, uint, 0);
MODULE_PARM_DESC(debug, "Debugging mask");
int htc_modparam_nohwcrypt;
module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
static int ath9k_htc_btcoex_enable;
module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);
MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
static int ath9k_ps_enable;
module_param_named(ps_enable, ath9k_ps_enable, int, 0444);
MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");
int htc_use_dev_fw = 0;
module_param_named(use_dev_fw, htc_use_dev_fw, int, 0444);
MODULE_PARM_DESC(use_dev_fw, "Use development FW version");
#ifdef CONFIG_MAC80211_LEDS
int ath9k_htc_led_blink = 1;
module_param_named(blink, ath9k_htc_led_blink, int, 0444);
MODULE_PARM_DESC(blink, "Enable LED blink on activity");
static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {
{ .throughput = 0 * 1024, .blink_time = 334 },
{ .throughput = 1 * 1024, .blink_time = 260 },
{ .throughput = 5 * 1024, .blink_time = 220 },
{ .throughput = 10 * 1024, .blink_time = 190 },
{ .throughput = 20 * 1024, .blink_time = 170 },
{ .throughput = 50 * 1024, .blink_time = 150 },
{ .throughput = 70 * 1024, .blink_time = 130 },
{ .throughput = 100 * 1024, .blink_time = 110 },
{ .throughput = 200 * 1024, .blink_time = 80 },
{ .throughput = 300 * 1024, .blink_time = 50 },
};
#endif
static void ath9k_htc_op_ps_wakeup(struct ath_common *common)
{
ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv);
}
static void ath9k_htc_op_ps_restore(struct ath_common *common)
{
ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv);
}
static const struct ath_ps_ops ath9k_htc_ps_ops = {
.wakeup = ath9k_htc_op_ps_wakeup,
.restore = ath9k_htc_op_ps_restore,
};
static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
{
unsigned long time_left;
if (atomic_read(&priv->htc->tgt_ready) > 0) {
atomic_dec(&priv->htc->tgt_ready);
return 0;
}
/* Firmware can take up to 50ms to get ready, to be safe use 1 second */
time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
if (!time_left) {
dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
return -ETIMEDOUT;
}
atomic_dec(&priv->htc->tgt_ready);
return 0;
}
static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
{
ath9k_hw_deinit(priv->ah);
kfree(priv->ah);
priv->ah = NULL;
}
static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
{
struct ieee80211_hw *hw = priv->hw;
wiphy_rfkill_stop_polling(hw->wiphy);
ath9k_deinit_leds(priv);
ath9k_htc_deinit_debug(priv);
ieee80211_unregister_hw(hw);
ath9k_rx_cleanup(priv);
ath9k_tx_cleanup(priv);
ath9k_deinit_priv(priv);
}
static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
u16 service_id,
void (*tx) (void *,
struct sk_buff *,
enum htc_endpoint_id,
bool txok),
enum htc_endpoint_id *ep_id)
{
struct htc_service_connreq req;
memset(&req, 0, sizeof(struct htc_service_connreq));
req.service_id = service_id;
req.ep_callbacks.priv = priv;
req.ep_callbacks.rx = ath9k_htc_rxep;
req.ep_callbacks.tx = tx;
return htc_connect_service(priv->htc, &req, ep_id);
}
static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,
u32 drv_info)
{
int ret;
/* WMI CMD*/
ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
if (ret)
goto err;
/* Beacon */
ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,
&priv->beacon_ep);
if (ret)
goto err;
/* CAB */
ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
&priv->cab_ep);
if (ret)
goto err;
/* UAPSD */
ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
&priv->uapsd_ep);
if (ret)
goto err;
/* MGMT */
ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
&priv->mgmt_ep);
if (ret)
goto err;
/* DATA BE */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
&priv->data_be_ep);
if (ret)
goto err;
/* DATA BK */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
&priv->data_bk_ep);
if (ret)
goto err;
/* DATA VI */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
&priv->data_vi_ep);
if (ret)
goto err;
/* DATA VO */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
&priv->data_vo_ep);
if (ret)
goto err;
/*
* Setup required credits before initializing HTC.
* This is a bit hacky, but, since queuing is done in
* the HIF layer, shouldn't matter much.
*/
if (IS_AR7010_DEVICE(drv_info))
priv->htc->credits = 45;
else
priv->htc->credits = 33;
ret = htc_init(priv->htc);
if (ret)
goto err;
dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",
priv->htc->credits);
return 0;
err:
dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
return ret;
}
static void ath9k_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct ath9k_htc_priv *priv = hw->priv;
ath_reg_notifier_apply(wiphy, request,
ath9k_hw_regulatory(priv->ah));
}
static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
__be32 val, reg = cpu_to_be32(reg_offset);
int r;
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
(u8 *) &reg, sizeof(reg),
(u8 *) &val, sizeof(val),
100);
if (unlikely(r)) {
ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",
reg_offset, r);
return -1;
}
return be32_to_cpu(val);
}
static void ath9k_multi_regread(void *hw_priv, u32 *addr,
u32 *val, u16 count)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
__be32 tmpaddr[8];
__be32 tmpval[8];
int i, ret;
for (i = 0; i < count; i++) {
tmpaddr[i] = cpu_to_be32(addr[i]);
}
ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
(u8 *)tmpaddr , sizeof(u32) * count,
(u8 *)tmpval, sizeof(u32) * count,
100);
if (unlikely(ret)) {
ath_dbg(common, WMI,
"Multiple REGISTER READ FAILED (count: %d)\n", count);
}
for (i = 0; i < count; i++) {
val[i] = be32_to_cpu(tmpval[i]);
}
}
static void ath9k_regwrite_multi(struct ath_common *common)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
u32 rsp_status;
int r;
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
(u8 *) &priv->wmi->multi_write,
sizeof(struct register_write) * priv->wmi->multi_write_idx,
(u8 *) &rsp_status, sizeof(rsp_status),
100);
if (unlikely(r)) {
ath_dbg(common, WMI,
"REGISTER WRITE FAILED, multi len: %d\n",
priv->wmi->multi_write_idx);
}
priv->wmi->multi_write_idx = 0;
}
static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
const __be32 buf[2] = {
cpu_to_be32(reg_offset),
cpu_to_be32(val),
};
int r;
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
(u8 *) &buf, sizeof(buf),
(u8 *) &val, sizeof(val),
100);
if (unlikely(r)) {
ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",
reg_offset, r);
}
}
static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
mutex_lock(&priv->wmi->multi_write_mutex);
/* Store the register/value */
priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =
cpu_to_be32(reg_offset);
priv->wmi->multi_write[priv->wmi->multi_write_idx].val =
cpu_to_be32(val);
priv->wmi->multi_write_idx++;
/* If the buffer is full, send it out. */
if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)
ath9k_regwrite_multi(common);
mutex_unlock(&priv->wmi->multi_write_mutex);
}
static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
if (atomic_read(&priv->wmi->mwrite_cnt))
ath9k_regwrite_buffer(hw_priv, val, reg_offset);
else
ath9k_regwrite_single(hw_priv, val, reg_offset);
}
static void ath9k_enable_regwrite_buffer(void *hw_priv)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
atomic_inc(&priv->wmi->mwrite_cnt);
}
static void ath9k_regwrite_flush(void *hw_priv)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
atomic_dec(&priv->wmi->mwrite_cnt);
mutex_lock(&priv->wmi->multi_write_mutex);
if (priv->wmi->multi_write_idx)
ath9k_regwrite_multi(common);
mutex_unlock(&priv->wmi->multi_write_mutex);
}
static void ath9k_reg_rmw_buffer(void *hw_priv,
u32 reg_offset, u32 set, u32 clr)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
u32 rsp_status;
int r;
mutex_lock(&priv->wmi->multi_rmw_mutex);
/* Store the register/value */
priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].reg =
cpu_to_be32(reg_offset);
priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].set =
cpu_to_be32(set);
priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].clr =
cpu_to_be32(clr);
priv->wmi->multi_rmw_idx++;
/* If the buffer is full, send it out. */
if (priv->wmi->multi_rmw_idx == MAX_RMW_CMD_NUMBER) {
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
(u8 *) &priv->wmi->multi_rmw,
sizeof(struct register_write) * priv->wmi->multi_rmw_idx,
(u8 *) &rsp_status, sizeof(rsp_status),
100);
if (unlikely(r)) {
ath_dbg(common, WMI,
"REGISTER RMW FAILED, multi len: %d\n",
priv->wmi->multi_rmw_idx);
}
priv->wmi->multi_rmw_idx = 0;
}
mutex_unlock(&priv->wmi->multi_rmw_mutex);
}
static void ath9k_reg_rmw_flush(void *hw_priv)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
u32 rsp_status;
int r;
if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
return;
atomic_dec(&priv->wmi->m_rmw_cnt);
mutex_lock(&priv->wmi->multi_rmw_mutex);
if (priv->wmi->multi_rmw_idx) {
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
(u8 *) &priv->wmi->multi_rmw,
sizeof(struct register_rmw) * priv->wmi->multi_rmw_idx,
(u8 *) &rsp_status, sizeof(rsp_status),
100);
if (unlikely(r)) {
ath_dbg(common, WMI,
"REGISTER RMW FAILED, multi len: %d\n",
priv->wmi->multi_rmw_idx);
}
priv->wmi->multi_rmw_idx = 0;
}
mutex_unlock(&priv->wmi->multi_rmw_mutex);
}
static void ath9k_enable_rmw_buffer(void *hw_priv)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))
return;
atomic_inc(&priv->wmi->m_rmw_cnt);
}
static void ath9k_reg_rmw_single(void *hw_priv,
u32 reg_offset, u32 set, u32 clr)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
struct register_rmw buf, buf_ret;
int ret;
buf.reg = cpu_to_be32(reg_offset);
buf.set = cpu_to_be32(set);
buf.clr = cpu_to_be32(clr);
ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,
(u8 *) &buf, sizeof(buf),
(u8 *) &buf_ret, sizeof(buf_ret),
100);
if (unlikely(ret)) {
ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",
reg_offset, ret);
}
}
static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)
{
struct ath_hw *ah = hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {
u32 val;
val = REG_READ(ah, reg_offset);
val &= ~clr;
val |= set;
REG_WRITE(ah, reg_offset, val);
return 0;
}
if (atomic_read(&priv->wmi->m_rmw_cnt))
ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);
else
ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);
return 0;
}
static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
{
*csz = L1_CACHE_BYTES >> 2;
}
static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
{
struct ath_hw *ah = (struct ath_hw *) common->ah;
(void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
if (!ath9k_hw_wait(ah,
AR_EEPROM_STATUS_DATA,
AR_EEPROM_STATUS_DATA_BUSY |
AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
AH_WAIT_TIMEOUT))
return false;
*data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
AR_EEPROM_STATUS_DATA_VAL);
return true;
}
static const struct ath_bus_ops ath9k_usb_bus_ops = {
.ath_bus_type = ATH_USB,
.read_cachesize = ath_usb_read_cachesize,
.eeprom_read = ath_usb_eeprom_read,
};
static int ath9k_init_queues(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
int i;
for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
priv->hwq_map[i] = -1;
priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);
if (priv->beacon.beaconq == -1) {
ath_err(common, "Unable to setup BEACON xmit queue\n");
goto err;
}
priv->cabq = ath9k_htc_cabq_setup(priv);
if (priv->cabq == -1) {
ath_err(common, "Unable to setup CAB xmit queue\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {
ath_err(common, "Unable to setup xmit queue for BE traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {
ath_err(common, "Unable to setup xmit queue for BK traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {
ath_err(common, "Unable to setup xmit queue for VI traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {
ath_err(common, "Unable to setup xmit queue for VO traffic\n");
goto err;
}
return 0;
err:
return -EINVAL;
}
static void ath9k_init_misc(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
eth_broadcast_addr(common->bssidmask);
common->last_rssi = ATH_RSSI_DUMMY_MARKER;
priv->ah->opmode = NL80211_IFTYPE_STATION;
priv->spec_priv.ah = priv->ah;
priv->spec_priv.spec_config.enabled = 0;
priv->spec_priv.spec_config.short_repeat = true;
priv->spec_priv.spec_config.count = 8;
priv->spec_priv.spec_config.endless = false;
priv->spec_priv.spec_config.period = 0x12;
priv->spec_priv.spec_config.fft_period = 0x02;
}
static int ath9k_init_priv(struct ath9k_htc_priv *priv,
u16 devid, char *product,
u32 drv_info)
{
struct ath_hw *ah = NULL;
struct ath_common *common;
int i, ret = 0, csz = 0;
ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
if (!ah)
return -ENOMEM;
ah->dev = priv->dev;
ah->hw = priv->hw;
ah->hw_version.devid = devid;
ah->hw_version.usbdev = drv_info;
ah->ah_flags |= AH_USE_EEPROM;
ah->reg_ops.read = ath9k_regread;
ah->reg_ops.multi_read = ath9k_multi_regread;
ah->reg_ops.write = ath9k_regwrite;
ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;
ah->reg_ops.write_flush = ath9k_regwrite_flush;
ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;
ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;
ah->reg_ops.rmw = ath9k_reg_rmw;
priv->ah = ah;
common = ath9k_hw_common(ah);
common->ops = &ah->reg_ops;
common->ps_ops = &ath9k_htc_ps_ops;
common->bus_ops = &ath9k_usb_bus_ops;
common->ah = ah;
common->hw = priv->hw;
common->priv = priv;
common->debug_mask = ath9k_debug;
common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;
set_bit(ATH_OP_INVALID, &common->op_flags);
spin_lock_init(&priv->beacon_lock);
spin_lock_init(&priv->tx.tx_lock);
mutex_init(&priv->mutex);
mutex_init(&priv->htc_pm_lock);
tasklet_setup(&priv->rx_tasklet, ath9k_rx_tasklet);
tasklet_setup(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet);
INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);
INIT_WORK(&priv->ps_work, ath9k_ps_work);
INIT_WORK(&priv->fatal_work, ath9k_fatal_work);
timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);
/*
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
ath_read_cachesize(common, &csz);
common->cachelsz = csz << 2; /* convert to bytes */
ret = ath9k_hw_init(ah);
if (ret) {
ath_err(common,
"Unable to initialize hardware; initialization status: %d\n",
ret);
goto err_hw;
}
ret = ath9k_init_queues(priv);
if (ret)
goto err_queues;
for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
priv->beacon.bslot[i] = NULL;
priv->beacon.slottime = 9;
ath9k_cmn_init_channels_rates(common);
ath9k_cmn_init_crypto(ah);
ath9k_init_misc(priv);
ath9k_htc_init_btcoex(priv, product);
return 0;
err_queues:
ath9k_hw_deinit(ah);
err_hw:
kfree(ah);
priv->ah = NULL;
return ret;
}
static const struct ieee80211_iface_limit if_limits[] = {
{ .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_P2P_CLIENT) },
{ .max = 2, .types = BIT(NL80211_IFTYPE_AP) |
#ifdef CONFIG_MAC80211_MESH
BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
BIT(NL80211_IFTYPE_P2P_GO) },
};
static const struct ieee80211_iface_combination if_comb = {
.limits = if_limits,
.n_limits = ARRAY_SIZE(if_limits),
.max_interfaces = 2,
.num_different_channels = 1,
};
static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct base_eep_header *pBase;
ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
ieee80211_hw_set(hw, MFP_CAPABLE);
ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
ieee80211_hw_set(hw, PS_NULLFUNC_STACK);
ieee80211_hw_set(hw, RX_INCLUDES_FCS);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, SPECTRUM_MGMT);
ieee80211_hw_set(hw, SIGNAL_DBM);
ieee80211_hw_set(hw, AMPDU_AGGREGATION);
ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);
if (ath9k_ps_enable)
ieee80211_hw_set(hw, SUPPORTS_PS);
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_MESH_POINT) |
BIT(NL80211_IFTYPE_OCB);
hw->wiphy->iface_combinations = &if_comb;
hw->wiphy->n_iface_combinations = 1;
hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
WIPHY_FLAG_HAS_CHANNEL_SWITCH;
hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
hw->queues = 4;
hw->max_listen_interval = 1;
hw->vif_data_size = sizeof(struct ath9k_htc_vif);
hw->sta_data_size = sizeof(struct ath9k_htc_sta);
/* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
sizeof(struct htc_frame_hdr) + 4;
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
hw->wiphy->bands[NL80211_BAND_2GHZ] =
&common->sbands[NL80211_BAND_2GHZ];
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)
hw->wiphy->bands[NL80211_BAND_5GHZ] =
&common->sbands[NL80211_BAND_5GHZ];
ath9k_cmn_reload_chainmask(ah);
pBase = ath9k_htc_get_eeprom_base(priv);
if (pBase) {
hw->wiphy->available_antennas_rx = pBase->rxMask;
hw->wiphy->available_antennas_tx = pBase->txMask;
}
SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
wiphy_ext_feature_set(hw->wiphy,
NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);
}
static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)
{
struct ieee80211_hw *hw = priv->hw;
struct wmi_fw_version cmd_rsp;
int ret;
memset(&cmd_rsp, 0, sizeof(cmd_rsp));
WMI_CMD(WMI_GET_FW_VERSION);
if (ret)
return -EINVAL;
priv->fw_version_major = be16_to_cpu(cmd_rsp.major);
priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);
snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",
priv->fw_version_major,
priv->fw_version_minor);
dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",
priv->fw_version_major,
priv->fw_version_minor);
/*
* Check if the available FW matches the driver's
* required version.
*/
if (priv->fw_version_major != MAJOR_VERSION_REQ ||
priv->fw_version_minor < MINOR_VERSION_REQ) {
dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",
MAJOR_VERSION_REQ, MINOR_VERSION_REQ);
return -EINVAL;
}
if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)
set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);
dev_info(priv->dev, "FW RMW support: %s\n",
test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");
return 0;
}
static int ath9k_init_device(struct ath9k_htc_priv *priv,
u16 devid, char *product, u32 drv_info)
{
struct ieee80211_hw *hw = priv->hw;
struct ath_common *common;
struct ath_hw *ah;
int error = 0;
struct ath_regulatory *reg;
char hw_name[64];
/* Bring up device */
error = ath9k_init_priv(priv, devid, product, drv_info);
if (error != 0)
goto err_init;
ah = priv->ah;
common = ath9k_hw_common(ah);
ath9k_set_hw_capab(priv, hw);
error = ath9k_init_firmware_version(priv);
if (error != 0)
goto err_fw;
/* Initialize regulatory */
error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
ath9k_reg_notifier);
if (error)
goto err_regd;
reg = &common->regulatory;
/* Setup TX */
error = ath9k_tx_init(priv);
if (error != 0)
goto err_tx;
/* Setup RX */
error = ath9k_rx_init(priv);
if (error != 0)
goto err_rx;
ath9k_hw_disable(priv->ah);
#ifdef CONFIG_MAC80211_LEDS
/* must be initialized before ieee80211_register_hw */
priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,
IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,
ARRAY_SIZE(ath9k_htc_tpt_blink));
#endif
/* Register with mac80211 */
error = ieee80211_register_hw(hw);
if (error)
goto err_register;
/* Handle world regulatory */
if (!ath_is_world_regd(reg)) {
error = regulatory_hint(hw->wiphy, reg->alpha2);
if (error)
goto err_world;
}
error = ath9k_htc_init_debug(priv->ah);
if (error) {
ath_err(common, "Unable to create debugfs files\n");
goto err_world;
}
ath_dbg(common, CONFIG,
"WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",
priv->wmi_cmd_ep,
priv->beacon_ep,
priv->cab_ep,
priv->uapsd_ep,
priv->mgmt_ep,
priv->data_be_ep,
priv->data_bk_ep,
priv->data_vi_ep,
priv->data_vo_ep);
ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));
wiphy_info(hw->wiphy, "%s\n", hw_name);
ath9k_init_leds(priv);
ath9k_start_rfkill_poll(priv);
return 0;
err_world:
ieee80211_unregister_hw(hw);
err_register:
ath9k_rx_cleanup(priv);
err_rx:
ath9k_tx_cleanup(priv);
err_tx:
/* Nothing */
err_regd:
/* Nothing */
err_fw:
ath9k_deinit_priv(priv);
err_init:
return error;
}
int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
u16 devid, char *product, u32 drv_info)
{
struct hif_device_usb *hif_dev;
struct ath9k_htc_priv *priv;
struct ieee80211_hw *hw;
int ret;
hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
if (!hw)
return -ENOMEM;
priv = hw->priv;
priv->hw = hw;
priv->htc = htc_handle;
priv->dev = dev;
htc_handle->drv_priv = priv;
SET_IEEE80211_DEV(hw, priv->dev);
ret = ath9k_htc_wait_for_target(priv);
if (ret)
goto err_free;
priv->wmi = ath9k_init_wmi(priv);
if (!priv->wmi) {
ret = -EINVAL;
goto err_free;
}
ret = ath9k_init_htc_services(priv, devid, drv_info);
if (ret)
goto err_init;
ret = ath9k_init_device(priv, devid, product, drv_info);
if (ret)
goto err_init;
return 0;
err_init:
ath9k_stop_wmi(priv);
hif_dev = (struct hif_device_usb *)htc_handle->hif_dev;
ath9k_hif_usb_dealloc_urbs(hif_dev);
ath9k_destroy_wmi(priv);
err_free:
ieee80211_free_hw(hw);
return ret;
}
void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
{
if (htc_handle->drv_priv) {
/* Check if the device has been yanked out. */
if (hotunplug)
htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;
ath9k_deinit_device(htc_handle->drv_priv);
ath9k_stop_wmi(htc_handle->drv_priv);
ieee80211_free_hw(htc_handle->drv_priv->hw);
}
}
#ifdef CONFIG_PM
void ath9k_htc_suspend(struct htc_target *htc_handle)
{
ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);
}
int ath9k_htc_resume(struct htc_target *htc_handle)
{
struct ath9k_htc_priv *priv = htc_handle->drv_priv;
int ret;
ret = ath9k_htc_wait_for_target(priv);
if (ret)
return ret;
ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,
priv->ah->hw_version.usbdev);
ath9k_configure_leds(priv);
return ret;
}
#endif
static int __init ath9k_htc_init(void)
{
if (ath9k_hif_usb_init() < 0) {
pr_err("No USB devices found, driver not installed\n");
return -ENODEV;
}
return 0;
}
module_init(ath9k_htc_init);
static void __exit ath9k_htc_exit(void)
{
ath9k_hif_usb_exit();
pr_info("Driver unloaded\n");
}
module_exit(ath9k_htc_exit);