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authorKalle Valo <kalle.valo@nokia.com>2010-01-12 10:42:39 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-01-12 14:21:00 -0500
commit50ae0cf15c3da2f6a8e4558de5010923e84736b2 (patch)
treea524720a3da8eac3e08ef7dd7ec67d0f30283f78 /net/mac80211/debugfs.c
parentab13315af97919fae0e014748105fdc2e30afb2d (diff)
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mac80211: add debugfs interface for U-APSD queue configuration
Because it's not yet decided how to configure which queues are U-APSD enabled, add a debugfs interface for testing purposes. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/debugfs.c')
-rw-r--r--net/mac80211/debugfs.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index e4b54093d41b..b3bc32b62a5a 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -158,6 +158,98 @@ static const struct file_operations noack_ops = {
.open = mac80211_open_file_generic
};
+static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ int res;
+ char buf[10];
+
+ res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static ssize_t uapsd_queues_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ unsigned long val;
+ char buf[10];
+ size_t len;
+ 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, &val);
+
+ if (ret)
+ return -EINVAL;
+
+ if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
+ return -ERANGE;
+
+ local->uapsd_queues = val;
+
+ return count;
+}
+
+static const struct file_operations uapsd_queues_ops = {
+ .read = uapsd_queues_read,
+ .write = uapsd_queues_write,
+ .open = mac80211_open_file_generic
+};
+
+static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ int res;
+ char buf[10];
+
+ res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, res);
+}
+
+static ssize_t uapsd_max_sp_len_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ unsigned long val;
+ char buf[10];
+ size_t len;
+ 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, &val);
+
+ if (ret)
+ return -EINVAL;
+
+ if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
+ return -ERANGE;
+
+ local->uapsd_max_sp_len = val;
+
+ return count;
+}
+
+static const struct file_operations uapsd_max_sp_len_ops = {
+ .read = uapsd_max_sp_len_read,
+ .write = uapsd_max_sp_len_write,
+ .open = mac80211_open_file_generic
+};
+
static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -314,6 +406,8 @@ void debugfs_hw_add(struct ieee80211_local *local)
DEBUGFS_ADD(queues);
DEBUGFS_ADD_MODE(reset, 0200);
DEBUGFS_ADD(noack);
+ DEBUGFS_ADD(uapsd_queues);
+ DEBUGFS_ADD(uapsd_max_sp_len);
statsd = debugfs_create_dir("statistics", phyd);