From 18eab430700dc877bae38cf04f0b0574b4724f0a Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 20 Nov 2012 13:20:02 +0200 Subject: [PATCH] wlcore: workaround start_sta problem in wl12xx fw for some reason, the wl12xx fw is not able to rx/tx on the first start_sta cmd. Workaround it by issuing a dummy start_sta + stop_sta before starting the sta for the final time. Signed-off-by: Eliad Peller Reviewed-by: Arik Nemtsov Signed-off-by: Luciano Coelho --- drivers/net/wireless/ti/wl12xx/main.c | 9 ++++++--- drivers/net/wireless/ti/wlcore/main.c | 15 ++++++++++++++- drivers/net/wireless/ti/wlcore/wlcore.h | 3 +++ 3 files changed, 23 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c index dadf1dbb002a..6c9fba486795 100644 --- a/drivers/net/wireless/ti/wl12xx/main.c +++ b/drivers/net/wireless/ti/wl12xx/main.c @@ -637,7 +637,8 @@ static int wl12xx_identify_chip(struct wl1271 *wl) wl->quirks |= WLCORE_QUIRK_LEGACY_NVS | WLCORE_QUIRK_DUAL_PROBE_TMPL | - WLCORE_QUIRK_TKIP_HEADER_SPACE; + WLCORE_QUIRK_TKIP_HEADER_SPACE | + WLCORE_QUIRK_START_STA_FAILS; wl->sr_fw_name = WL127X_FW_NAME_SINGLE; wl->mr_fw_name = WL127X_FW_NAME_MULTI; memcpy(&wl->conf.mem, &wl12xx_default_priv_conf.mem_wl127x, @@ -657,7 +658,8 @@ static int wl12xx_identify_chip(struct wl1271 *wl) wl->quirks |= WLCORE_QUIRK_LEGACY_NVS | WLCORE_QUIRK_DUAL_PROBE_TMPL | - WLCORE_QUIRK_TKIP_HEADER_SPACE; + WLCORE_QUIRK_TKIP_HEADER_SPACE | + WLCORE_QUIRK_START_STA_FAILS; wl->plt_fw_name = WL127X_PLT_FW_NAME; wl->sr_fw_name = WL127X_FW_NAME_SINGLE; wl->mr_fw_name = WL127X_FW_NAME_MULTI; @@ -682,7 +684,8 @@ static int wl12xx_identify_chip(struct wl1271 *wl) /* wl128x requires TX blocksize alignment */ wl->quirks |= WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN | WLCORE_QUIRK_DUAL_PROBE_TMPL | - WLCORE_QUIRK_TKIP_HEADER_SPACE; + WLCORE_QUIRK_TKIP_HEADER_SPACE | + WLCORE_QUIRK_START_STA_FAILS; wlcore_set_min_fw_ver(wl, WL128X_CHIP_VER, WL128X_IFTYPE_VER, WL128X_MAJOR_VER, WL128X_SUBTYPE_VER, diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index 63367c00d2fa..054daae9c2fe 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -2490,8 +2490,21 @@ static int wlcore_join(struct wl1271 *wl, struct wl12xx_vif *wlvif) if (is_ibss) ret = wl12xx_cmd_role_start_ibss(wl, wlvif); - else + else { + if (wl->quirks & WLCORE_QUIRK_START_STA_FAILS) { + /* + * TODO: this is an ugly workaround for wl12xx fw + * bug - we are not able to tx/rx after the first + * start_sta, so make dummy start+stop calls, + * and then call start_sta again. + * this should be fixed in the fw. + */ + wl12xx_cmd_role_start_sta(wl, wlvif); + wl12xx_cmd_role_stop_sta(wl, wlvif); + } + ret = wl12xx_cmd_role_start_sta(wl, wlvif); + } return ret; } diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h index 68584aa0f2b0..1030b6bffeec 100644 --- a/drivers/net/wireless/ti/wlcore/wlcore.h +++ b/drivers/net/wireless/ti/wlcore/wlcore.h @@ -450,6 +450,9 @@ wlcore_set_min_fw_ver(struct wl1271 *wl, unsigned int chip, /* Each RX/TX transaction requires an end-of-transaction transfer */ #define WLCORE_QUIRK_END_OF_TRANSACTION BIT(0) +/* the first start_role(sta) sometimes doesn't work on wl12xx */ +#define WLCORE_QUIRK_START_STA_FAILS BIT(1) + /* wl127x and SPI don't support SDIO block size alignment */ #define WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN BIT(2)