Allow control over rx_streaming interval and operation mode
(always/only on coex) via debugfs.
e.g.
echo 100 > /debug/ieee80211/phy0/wl12xx/rx_streaming/interval
echo 1 > /debug/ieee80211/phy0/wl12xx/rx_streaming/always
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/debugfs.c | 136 ++++++++++++++++++++++++++++++++-
1 files changed, 135 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index f1f8df9..c3f1946 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -71,6 +71,14 @@ static const struct file_operations name## _ops = { \
if (!entry || IS_ERR(entry)) \
goto err; \
+#define DEBUGFS_ADD_PREFIX(prefix, name, parent) \
+ do { \
+ entry = debugfs_create_file(#name, 0400, parent, \
+ wl, &prefix## _## name## _ops); \
+ if (!entry || IS_ERR(entry)) \
+ goto err; \
+ } while (0);
+
#define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \
static ssize_t sub## _ ##name## _read(struct file *file, \
char __user *userbuf, \
@@ -527,11 +535,129 @@ static const struct file_operations beacon_interval_ops = {
.llseek = default_llseek,
};
+static ssize_t rx_streaming_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 = kstrtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value in rx_streaming_interval!");
+ return -EINVAL;
+ }
+
+ /* valid values: 0, 10-100 */
+ if (value && (value < 10 || value > 100)) {
+ wl1271_warning("value is not in range!");
+ return -ERANGE;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.rx_streaming.interval = value;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ wl1271_recalc_rx_streaming(wl);
+
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static ssize_t rx_streaming_interval_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ return wl1271_format_buffer(userbuf, count, ppos,
+ "%d\n", wl->conf.rx_streaming.interval);
+}
+
+static const struct file_operations rx_streaming_interval_ops = {
+ .read = rx_streaming_interval_read,
+ .write = rx_streaming_interval_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static ssize_t rx_streaming_always_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 = kstrtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value in rx_streaming_write!");
+ return -EINVAL;
+ }
+
+ /* valid values: 0, 10-100 */
+ if (!(value == 0 || value == 1)) {
+ wl1271_warning("value is not in valid!");
+ return -EINVAL;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.rx_streaming.always = value;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ wl1271_recalc_rx_streaming(wl);
+
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static ssize_t rx_streaming_always_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ return wl1271_format_buffer(userbuf, count, ppos,
+ "%d\n", wl->conf.rx_streaming.always);
+}
+
+static const struct file_operations rx_streaming_always_ops = {
+ .read = rx_streaming_always_read,
+ .write = rx_streaming_always_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
static int wl1271_debugfs_add_files(struct wl1271 *wl,
struct dentry *rootdir)
{
int ret = 0;
- struct dentry *entry, *stats;
+ struct dentry *entry, *stats, *streaming;
stats = debugfs_create_dir("fw-statistics", rootdir);
if (!stats || IS_ERR(stats)) {
@@ -640,6 +766,14 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
+ streaming = debugfs_create_dir("rx_streaming", rootdir);
+ if (!streaming || IS_ERR(streaming))
+ goto err;
+
+ DEBUGFS_ADD_PREFIX(rx_streaming, interval, streaming);
+ DEBUGFS_ADD_PREFIX(rx_streaming, always, streaming);
+
+
return 0;
err:
--
1.7.0.4
--
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