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wl12xx: optimise elp wakeup and sleep calls

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The wakeup call was done too deep in code path, it's better to wakeup
chip from higher levels. This will also reduce wakeup calls significantly.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Kalle Valo 2009-06-12 14:16:26 +03:00 committed by John W. Linville
parent cee4fd2712
commit 01d9cfbdaa
3 changed files with 25 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/wireless/wl12xx/cmd.c
View File

@ -32,8 +32,6 @@ int wl12xx_cmd_send(struct wl12xx *wl, u16 id, void *buf, size_t len)
WARN_ON(len % 4 != 0);
wl12xx_ps_elp_wakeup(wl);
wl12xx_spi_mem_write(wl, wl->cmd_box_addr, buf, len);
wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
@ -57,8 +55,6 @@ int wl12xx_cmd_send(struct wl12xx *wl, u16 id, void *buf, size_t len)
wl->chip.intr_cmd_complete);
out:
wl12xx_ps_elp_sleep(wl);
return ret;
}
@ -91,13 +87,8 @@ int wl12xx_cmd_test(struct wl12xx *wl, void *buf, size_t buf_len, u8 answer)
* The answer would be a wl12xx_command, where the
* parameter array contains the actual answer.
*/
wl12xx_ps_elp_wakeup(wl);
wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, buf_len);
wl12xx_ps_elp_sleep(wl);
cmd_answer = buf;
if (cmd_answer->header.status != CMD_STATUS_SUCCESS)
@ -134,13 +125,9 @@ int wl12xx_cmd_interrogate(struct wl12xx *wl, u16 id, void *buf, size_t len)
goto out;
}
wl12xx_ps_elp_wakeup(wl);
/* the interrogate command got in, we can read the answer */
wl12xx_spi_mem_read(wl, wl->cmd_box_addr, buf, len);
wl12xx_ps_elp_sleep(wl);
acx = buf;
if (acx->cmd.status != CMD_STATUS_SUCCESS)
wl12xx_error("INTERROGATE command error: %d",

5
drivers/net/wireless/wl12xx/debugfs.c
View File

@ -27,6 +27,7 @@
#include "wl12xx.h"
#include "acx.h"
#include "ps.h"
/* ms */
#define WL12XX_DEBUGFS_STATS_LIFETIME 1000
@ -96,6 +97,8 @@ static void wl12xx_debugfs_update_stats(struct wl12xx *wl)
{
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
if (wl->state == WL12XX_STATE_ON &&
time_after(jiffies, wl->stats.fw_stats_update +
msecs_to_jiffies(WL12XX_DEBUGFS_STATS_LIFETIME))) {
@ -103,6 +106,8 @@ static void wl12xx_debugfs_update_stats(struct wl12xx *wl)
wl->stats.fw_stats_update = jiffies;
}
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
}

20
drivers/net/wireless/wl12xx/main.c
View File

@ -239,11 +239,14 @@ static void wl12xx_filter_work(struct work_struct *work)
if (wl->state == WL12XX_STATE_OFF)
goto out;
wl12xx_ps_elp_wakeup(wl);
ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
if (ret < 0)
goto out;
out:
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
}
@ -521,6 +524,8 @@ static int wl12xx_op_config(struct ieee80211_hw *hw, u32 changed)
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
if (channel != wl->channel) {
/* FIXME: use beacon interval provided by mac80211 */
ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
@ -564,6 +569,7 @@ static int wl12xx_op_config(struct ieee80211_hw *hw, u32 changed)
}
out:
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
return ret;
}
@ -702,6 +708,8 @@ static int wl12xx_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
switch (cmd) {
case SET_KEY:
wl_cmd->key_action = KEY_ADD_OR_REPLACE;
@ -752,6 +760,7 @@ static int wl12xx_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
}
out_unlock:
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
out:
@ -946,7 +955,11 @@ static int wl12xx_op_hw_scan(struct ieee80211_hw *hw,
}
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
ret = wl12xx_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3);
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
return ret;
@ -959,11 +972,15 @@ static int wl12xx_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
ret = wl12xx_acx_rts_threshold(wl, (u16) value);
if (ret < 0)
wl12xx_warning("wl12xx_op_set_rts_threshold failed: %d", ret);
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
return ret;
@ -983,6 +1000,8 @@ static void wl12xx_op_bss_info_changed(struct ieee80211_hw *hw,
mutex_lock(&wl->mutex);
wl12xx_ps_elp_wakeup(wl);
if (changed & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
wl->aid = bss_conf->aid;
@ -1072,6 +1091,7 @@ static void wl12xx_op_bss_info_changed(struct ieee80211_hw *hw,
}
out:
wl12xx_ps_elp_sleep(wl);
mutex_unlock(&wl->mutex);
}