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wl12xx: BA initiator support

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Add 80211n BA initiator session support wl1271 driver.
Include BA supported FW version auto detection mechanism.
BA initiator session management included in FW independently.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Levi, Shahar 2011-01-23 07:27:22 +01:00 committed by Luciano Coelho
parent 6c89b7b2f8
commit 4b7fac77b4
7 changed files with 183 additions and 10 deletions
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51
drivers/net/wireless/wl12xx/acx.c
View File

@ -1342,6 +1342,57 @@ out:
return ret;
}
/* Configure BA session initiator/receiver parameters setting in the FW. */
int wl1271_acx_set_ba_session(struct wl1271 *wl,
enum ieee80211_back_parties direction,
u8 tid_index, u8 policy)
{
struct wl1271_acx_ba_session_policy *acx;
int ret;
wl1271_debug(DEBUG_ACX, "acx ba session setting");
acx = kzalloc(sizeof(*acx), GFP_KERNEL);
if (!acx) {
ret = -ENOMEM;
goto out;
}
/* ANY role */
acx->role_id = 0xff;
acx->tid = tid_index;
acx->enable = policy;
acx->ba_direction = direction;
switch (direction) {
case WLAN_BACK_INITIATOR:
acx->win_size = wl->conf.ht.tx_ba_win_size;
acx->inactivity_timeout = wl->conf.ht.inactivity_timeout;
break;
case WLAN_BACK_RECIPIENT:
acx->win_size = RX_BA_WIN_SIZE;
acx->inactivity_timeout = 0;
break;
default:
wl1271_error("Incorrect acx command id=%x\n", direction);
ret = -EINVAL;
goto out;
}
ret = wl1271_cmd_configure(wl,
ACX_BA_SESSION_POLICY_CFG,
acx,
sizeof(*acx));
if (ret < 0) {
wl1271_warning("acx ba session setting failed: %d", ret);
goto out;
}
out:
kfree(acx);
return ret;
}
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime)
{
struct wl1271_acx_fw_tsf_information *tsf_info;

41
drivers/net/wireless/wl12xx/acx.h
View File

@ -1061,6 +1061,40 @@ struct wl1271_acx_ht_information {
u8 padding[3];
} __packed;
#define RX_BA_WIN_SIZE 8
struct wl1271_acx_ba_session_policy {
struct acx_header header;
/*
* Specifies role Id, Range 0-7, 0xFF means ANY role.
* Future use. For now this field is irrelevant
*/
u8 role_id;
/*
* Specifies Link Id, Range 0-31, 0xFF means ANY Link Id.
* Not applicable if Role Id is set to ANY.
*/
u8 link_id;
u8 tid;
u8 enable;
/* Windows size in number of packets */
u16 win_size;
/*
* As initiator inactivity timeout in time units(TU) of 1024us.
* As receiver reserved
*/
u16 inactivity_timeout;
/* Initiator = 1/Receiver = 0 */
u8 ba_direction;
u8 padding[3];
} __packed;
struct wl1271_acx_fw_tsf_information {
struct acx_header header;
@ -1134,8 +1168,8 @@ enum {
ACX_RSSI_SNR_WEIGHTS = 0x0052,
ACX_KEEP_ALIVE_MODE = 0x0053,
ACX_SET_KEEP_ALIVE_CONFIG = 0x0054,
ACX_BA_SESSION_RESPONDER_POLICY = 0x0055,
ACX_BA_SESSION_INITIATOR_POLICY = 0x0056,
ACX_BA_SESSION_POLICY_CFG = 0x0055,
ACX_BA_SESSION_RX_SETUP = 0x0056,
ACX_PEER_HT_CAP = 0x0057,
ACX_HT_BSS_OPERATION = 0x0058,
ACX_COEX_ACTIVITY = 0x0059,
@ -1209,6 +1243,9 @@ int wl1271_acx_set_ht_capabilities(struct wl1271 *wl,
bool allow_ht_operation);
int wl1271_acx_set_ht_information(struct wl1271 *wl,
u16 ht_operation_mode);
int wl1271_acx_set_ba_session(struct wl1271 *wl,
enum ieee80211_back_parties direction,
u8 tid_index, u8 policy);
int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime);
int wl1271_acx_max_tx_retry(struct wl1271 *wl);

24
drivers/net/wireless/wl12xx/boot.c
View File

@ -101,6 +101,22 @@ static void wl1271_boot_set_ecpu_ctrl(struct wl1271 *wl, u32 flag)
wl1271_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl);
}
static void wl1271_parse_fw_ver(struct wl1271 *wl)
{
int ret;
ret = sscanf(wl->chip.fw_ver_str + 4, "%u.%u.%u.%u.%u",
&wl->chip.fw_ver[0], &wl->chip.fw_ver[1],
&wl->chip.fw_ver[2], &wl->chip.fw_ver[3],
&wl->chip.fw_ver[4]);
if (ret != 5) {
wl1271_warning("fw version incorrect value");
memset(wl->chip.fw_ver, 0, sizeof(wl->chip.fw_ver));
return;
}
}
static void wl1271_boot_fw_version(struct wl1271 *wl)
{
struct wl1271_static_data static_data;
@ -108,11 +124,13 @@ static void wl1271_boot_fw_version(struct wl1271 *wl)
wl1271_read(wl, wl->cmd_box_addr, &static_data, sizeof(static_data),
false);
strncpy(wl->chip.fw_ver, static_data.fw_version,
sizeof(wl->chip.fw_ver));
strncpy(wl->chip.fw_ver_str, static_data.fw_version,
sizeof(wl->chip.fw_ver_str));
/* make sure the string is NULL-terminated */
wl->chip.fw_ver[sizeof(wl->chip.fw_ver) - 1] = '\0';
wl->chip.fw_ver_str[sizeof(wl->chip.fw_ver_str) - 1] = '\0';
wl1271_parse_fw_ver(wl);
}
static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,

6
drivers/net/wireless/wl12xx/conf.h
View File

@ -1138,6 +1138,11 @@ struct conf_rf_settings {
u8 tx_per_channel_power_compensation_5[CONF_TX_PWR_COMPENSATION_LEN_5];
};
struct conf_ht_setting {
u16 tx_ba_win_size;
u16 inactivity_timeout;
};
struct conf_drv_settings {
struct conf_sg_settings sg;
struct conf_rx_settings rx;
@ -1148,6 +1153,7 @@ struct conf_drv_settings {
struct conf_roam_trigger_settings roam_trigger;
struct conf_scan_settings scan;
struct conf_rf_settings rf;
struct conf_ht_setting ht;
};
#endif

42
drivers/net/wireless/wl12xx/init.c
View File

@ -455,6 +455,43 @@ static int wl1271_ap_hw_init_post_mem(struct wl1271 *wl)
return 0;
}
static void wl1271_check_ba_support(struct wl1271 *wl)
{
/* validate FW cose ver x.x.x.50-60.x */
if ((wl->chip.fw_ver[3] >= WL12XX_BA_SUPPORT_FW_COST_VER2_START) &&
(wl->chip.fw_ver[3] < WL12XX_BA_SUPPORT_FW_COST_VER2_END)) {
wl->ba_support = true;
return;
}
wl->ba_support = false;
}
static int wl1271_set_ba_policies(struct wl1271 *wl)
{
u8 tid_index;
u8 ret = 0;
/* Reset the BA RX indicators */
wl->ba_allowed = true;
wl->ba_rx_bitmap = 0;
/* validate that FW support BA */
wl1271_check_ba_support(wl);
if (wl->ba_support)
/* 802.11n initiator BA session setting */
for (tid_index = 0; tid_index < CONF_TX_MAX_TID_COUNT;
++tid_index) {
ret = wl1271_acx_set_ba_session(wl, WLAN_BACK_INITIATOR,
tid_index, true);
if (ret < 0)
break;
}
return ret;
}
int wl1271_hw_init(struct wl1271 *wl)
{
struct conf_tx_ac_category *conf_ac;
@ -568,6 +605,11 @@ int wl1271_hw_init(struct wl1271 *wl)
if (ret < 0)
goto out_free_memmap;
/* Configure initiator BA sessions policies */
ret = wl1271_set_ba_policies(wl);
if (ret < 0)
goto out_free_memmap;
return 0;
out_free_memmap:

12
drivers/net/wireless/wl12xx/main.c
View File

@ -274,7 +274,7 @@ static struct conf_drv_settings default_conf = {
.avg_weight_rssi_beacon = 20,
.avg_weight_rssi_data = 10,
.avg_weight_snr_beacon = 20,
.avg_weight_snr_data = 10
.avg_weight_snr_data = 10,
},
.scan = {
.min_dwell_time_active = 7500,
@ -293,6 +293,10 @@ static struct conf_drv_settings default_conf = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
},
},
.ht = {
.tx_ba_win_size = 64,
.inactivity_timeout = 10000,
},
};
static void __wl1271_op_remove_interface(struct wl1271 *wl);
@ -890,7 +894,7 @@ int wl1271_plt_start(struct wl1271 *wl)
wl->state = WL1271_STATE_PLT;
wl1271_notice("firmware booted in PLT mode (%s)",
wl->chip.fw_ver);
wl->chip.fw_ver_str);
goto out;
irq_disable:
@ -1138,11 +1142,11 @@ power_off:
wl->vif = vif;
wl->state = WL1271_STATE_ON;
wl1271_info("firmware booted (%s)", wl->chip.fw_ver);
wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
/* update hw/fw version info in wiphy struct */
wiphy->hw_version = wl->chip.id;
strncpy(wiphy->fw_version, wl->chip.fw_ver,
strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
sizeof(wiphy->fw_version));
/*

17
drivers/net/wireless/wl12xx/wl12xx.h
View File

@ -38,6 +38,13 @@
#define DRIVER_NAME "wl1271"
#define DRIVER_PREFIX DRIVER_NAME ": "
/*
* FW versions support BA 11n
* versions marks x.x.x.50-60.x
*/
#define WL12XX_BA_SUPPORT_FW_COST_VER2_START 50
#define WL12XX_BA_SUPPORT_FW_COST_VER2_END 60
enum {
DEBUG_NONE = 0,
DEBUG_IRQ = BIT(0),
@ -182,10 +189,13 @@ struct wl1271_partition_set {
struct wl1271;
#define WL12XX_NUM_FW_VER 5
/* FIXME: I'm not sure about this structure name */
struct wl1271_chip {
u32 id;
char fw_ver[21];
char fw_ver_str[ETHTOOL_BUSINFO_LEN];
unsigned int fw_ver[WL12XX_NUM_FW_VER];
};
struct wl1271_stats {
@ -460,6 +470,11 @@ struct wl1271 {
/* bands supported by this instance of wl12xx */
struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
/* RX BA constraint value */
bool ba_support;
u8 ba_allowed;
u8 ba_rx_bitmap;
};
struct wl1271_station {