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wl12xx: add debugfs entries for dtim_interval and beacon_interval

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When configuring ACX_WAKE_UP_CONDITIONS (before entering psm), we
tell the firmware to wake up once in N DTIMs/beacons.

Allow control of this value via debugfs (for debugging purposes).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Eliad Peller 2011-04-17 11:20:47 +03:00 committed by Luciano Coelho
parent 2370841bf1
commit 1fe9e2464c
1 changed files with 132 additions and 0 deletions
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132
drivers/net/wireless/wl12xx/debugfs.c
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@ -291,6 +291,136 @@ static const struct file_operations gpio_power_ops = {
.llseek = default_llseek,
};
static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
u8 value;
if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
value = wl->conf.conn.listen_interval;
else
value = 0;
return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
}
static ssize_t dtim_interval_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
char buf[10];
size_t len;
unsigned long value;
int ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
ret = strict_strtoul(buf, 0, &value);
if (ret < 0) {
wl1271_warning("illegal value for dtim_interval");
return -EINVAL;
}
if (value < 1 || value > 10) {
wl1271_warning("dtim value is not in valid range");
return -ERANGE;
}
mutex_lock(&wl->mutex);
wl->conf.conn.listen_interval = value;
/* for some reason there are different event types for 1 and >1 */
if (value == 1)
wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
else
wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
/*
* we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
* take effect on the next time we enter psm.
*/
mutex_unlock(&wl->mutex);
return count;
}
static const struct file_operations dtim_interval_ops = {
.read = dtim_interval_read,
.write = dtim_interval_write,
.open = wl1271_open_file_generic,
.llseek = default_llseek,
};
static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
u8 value;
if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_BEACON ||
wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
value = wl->conf.conn.listen_interval;
else
value = 0;
return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
}
static ssize_t beacon_interval_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct wl1271 *wl = file->private_data;
char buf[10];
size_t len;
unsigned long value;
int ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
ret = strict_strtoul(buf, 0, &value);
if (ret < 0) {
wl1271_warning("illegal value for beacon_interval");
return -EINVAL;
}
if (value < 1 || value > 255) {
wl1271_warning("beacon interval value is not in valid range");
return -ERANGE;
}
mutex_lock(&wl->mutex);
wl->conf.conn.listen_interval = value;
/* for some reason there are different event types for 1 and >1 */
if (value == 1)
wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_BEACON;
else
wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;
/*
* we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
* take effect on the next time we enter psm.
*/
mutex_unlock(&wl->mutex);
return count;
}
static const struct file_operations beacon_interval_ops = {
.read = beacon_interval_read,
.write = beacon_interval_write,
.open = wl1271_open_file_generic,
.llseek = default_llseek,
};
static int wl1271_debugfs_add_files(struct wl1271 *wl,
struct dentry *rootdir)
{
@ -399,6 +529,8 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(excessive_retries, rootdir);
DEBUGFS_ADD(gpio_power, rootdir);
DEBUGFS_ADD(dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
return 0;