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wl1271: Add sysfs file to control BT co-ex state

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Add a sysfs file to control the state of the BT co-ex (enable or disable it.)
By default, the BT co-ex is enabled.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@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:
Juuso Oikarinen 2010-03-18 12:26:32 +02:00 committed by John W. Linville
parent a1dd8187d8
commit 7fc3a8647d
5 changed files with 81 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/wl12xx/wl1271.h
View File

@ -484,6 +484,8 @@ struct wl1271 {
/* Current chipset configuration */
struct conf_drv_settings conf;
bool sg_enabled;
struct list_head list;
};

7
drivers/net/wireless/wl12xx/wl1271_acx.c
View File

@ -534,7 +534,7 @@ out:
}
int wl1271_acx_sg_enable(struct wl1271 *wl)
int wl1271_acx_sg_enable(struct wl1271 *wl, bool enable)
{
struct acx_bt_wlan_coex *pta;
int ret;
@ -547,7 +547,10 @@ int wl1271_acx_sg_enable(struct wl1271 *wl)
goto out;
}
pta->enable = wl->conf.sg.state;
if (enable)
pta->enable = wl->conf.sg.state;
else
pta->enable = CONF_SG_DISABLE;
ret = wl1271_cmd_configure(wl, ACX_SG_ENABLE, pta, sizeof(*pta));
if (ret < 0) {

2
drivers/net/wireless/wl12xx/wl1271_acx.h
View File

@ -1005,7 +1005,7 @@ int wl1271_acx_dco_itrim_params(struct wl1271 *wl);
int wl1271_acx_beacon_filter_opt(struct wl1271 *wl, bool enable_filter);
int wl1271_acx_beacon_filter_table(struct wl1271 *wl);
int wl1271_acx_conn_monit_params(struct wl1271 *wl);
int wl1271_acx_sg_enable(struct wl1271 *wl);
int wl1271_acx_sg_enable(struct wl1271 *wl, bool enable);
int wl1271_acx_sg_cfg(struct wl1271 *wl);
int wl1271_acx_cca_threshold(struct wl1271 *wl);
int wl1271_acx_bcn_dtim_options(struct wl1271 *wl);

2
drivers/net/wireless/wl12xx/wl1271_init.c
View File

@ -164,7 +164,7 @@ int wl1271_init_pta(struct wl1271 *wl)
if (ret < 0)
return ret;
ret = wl1271_acx_sg_enable(wl);
ret = wl1271_acx_sg_enable(wl, wl->sg_enabled);
if (ret < 0)
return ret;

72
drivers/net/wireless/wl12xx/wl1271_main.c
View File

@ -1982,6 +1982,68 @@ static const struct ieee80211_ops wl1271_ops = {
CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
};
static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct wl1271 *wl = dev_get_drvdata(dev);
ssize_t len;
/* FIXME: what's the maximum length of buf? page size?*/
len = 500;
mutex_lock(&wl->mutex);
len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
wl->sg_enabled);
mutex_unlock(&wl->mutex);
return len;
}
static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct wl1271 *wl = dev_get_drvdata(dev);
unsigned long res;
int ret;
ret = strict_strtoul(buf, 10, &res);
if (ret < 0) {
wl1271_warning("incorrect value written to bt_coex_mode");
return count;
}
mutex_lock(&wl->mutex);
res = !!res;
if (res == wl->sg_enabled)
goto out;
wl->sg_enabled = res;
if (wl->state == WL1271_STATE_OFF)
goto out;
ret = wl1271_ps_elp_wakeup(wl, false);
if (ret < 0)
goto out;
wl1271_acx_sg_enable(wl, wl->sg_enabled);
wl1271_ps_elp_sleep(wl);
out:
mutex_unlock(&wl->mutex);
return count;
}
static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
wl1271_sysfs_show_bt_coex_state,
wl1271_sysfs_store_bt_coex_state);
int wl1271_register_hw(struct wl1271 *wl)
{
int ret;
@ -2073,6 +2135,7 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
wl->band = IEEE80211_BAND_2GHZ;
wl->vif = NULL;
wl->flags = 0;
wl->sg_enabled = true;
for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
wl->tx_frames[i] = NULL;
@ -2095,9 +2158,18 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
}
dev_set_drvdata(&wl1271_device.dev, wl);
/* Create sysfs file to control bt coex state */
ret = device_create_file(&wl1271_device.dev, &dev_attr_bt_coex_state);
if (ret < 0) {
wl1271_error("failed to create sysfs file bt_coex_state");
goto err_platform;
}
return hw;
err_platform:
platform_device_unregister(&wl1271_device);
err_hw:
ieee80211_unregister_hw(wl->hw);