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authorEliad Peller <eliad@wizery.com>2014-12-29 09:24:08 +0300
committerKalle Valo <kvalo@codeaurora.org>2015-01-09 16:47:58 +0300
commite7d323243f567b8f3ff1324dc8a6f17dd36b4106 (patch)
treedd31dbdd9c7a26a742366bca99580c35ff288386 /drivers/net/wireless/ti/wl18xx
parent750e9d15e2fe93fec696893be7b120b2940378d0 (diff)
downloadlinux-e7d323243f567b8f3ff1324dc8a6f17dd36b4106.tar.xz
wl18xx: add debugfs file to emulate radar event
Add debugfs file to emulate radar detection through a special fw cmd (which in turn will generate radar event) Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ti/wl18xx')
-rw-r--r--drivers/net/wireless/ti/wl18xx/cmd.c26
-rw-r--r--drivers/net/wireless/ti/wl18xx/cmd.h8
-rw-r--r--drivers/net/wireless/ti/wl18xx/debugfs.c43
3 files changed, 77 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wl18xx/cmd.c b/drivers/net/wireless/ti/wl18xx/cmd.c
index 10f9d1c064ba..68e12e54aeed 100644
--- a/drivers/net/wireless/ti/wl18xx/cmd.c
+++ b/drivers/net/wireless/ti/wl18xx/cmd.c
@@ -198,3 +198,29 @@ out_free:
kfree(cmd);
return ret;
}
+
+int wl18xx_cmd_radar_detection_debug(struct wl1271 *wl, u8 channel)
+{
+ struct wl18xx_cmd_dfs_radar_debug *cmd;
+ int ret = 0;
+
+ wl1271_debug(DEBUG_CMD, "cmd radar detection debug (chan %d)",
+ channel);
+
+ cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+ if (!cmd)
+ return -ENOMEM;
+
+ cmd->channel = channel;
+
+ ret = wl1271_cmd_send(wl, CMD_DFS_RADAR_DETECTION_DEBUG,
+ cmd, sizeof(*cmd), 0);
+ if (ret < 0) {
+ wl1271_error("failed to send radar detection debug command");
+ goto out_free;
+ }
+
+out_free:
+ kfree(cmd);
+ return ret;
+}
diff --git a/drivers/net/wireless/ti/wl18xx/cmd.h b/drivers/net/wireless/ti/wl18xx/cmd.h
index 91b3e2fe77cd..0809b92c23db 100644
--- a/drivers/net/wireless/ti/wl18xx/cmd.h
+++ b/drivers/net/wireless/ti/wl18xx/cmd.h
@@ -59,6 +59,13 @@ struct wl18xx_cmd_smart_config_set_group_key {
u8 key[16];
} __packed;
+struct wl18xx_cmd_dfs_radar_debug {
+ struct wl1271_cmd_header header;
+
+ u8 channel;
+ u8 padding[3];
+} __packed;
+
/* cac_start and cac_stop share the same params */
struct wlcore_cmd_cac_start {
struct wl1271_cmd_header header;
@@ -77,4 +84,5 @@ int wl18xx_cmd_smart_config_stop(struct wl1271 *wl);
int wl18xx_cmd_smart_config_set_group_key(struct wl1271 *wl, u16 group_id,
u8 key_len, u8 *key);
int wl18xx_cmd_set_cac(struct wl1271 *wl, struct wl12xx_vif *wlvif, bool start);
+int wl18xx_cmd_radar_detection_debug(struct wl1271 *wl, u8 channel);
#endif
diff --git a/drivers/net/wireless/ti/wl18xx/debugfs.c b/drivers/net/wireless/ti/wl18xx/debugfs.c
index 7f1669cdea09..c93fae95baac 100644
--- a/drivers/net/wireless/ti/wl18xx/debugfs.c
+++ b/drivers/net/wireless/ti/wl18xx/debugfs.c
@@ -22,9 +22,12 @@
#include "../wlcore/debugfs.h"
#include "../wlcore/wlcore.h"
+#include "../wlcore/debug.h"
+#include "../wlcore/ps.h"
#include "wl18xx.h"
#include "acx.h"
+#include "cmd.h"
#include "debugfs.h"
#define WL18XX_DEBUGFS_FWSTATS_FILE(a, b, c) \
@@ -239,6 +242,45 @@ static const struct file_operations clear_fw_stats_ops = {
.llseek = default_llseek,
};
+static ssize_t radar_detection_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ int ret;
+ u8 channel;
+
+ ret = kstrtou8_from_user(user_buf, count, 10, &channel);
+ if (ret < 0) {
+ wl1271_warning("illegal channel");
+ return -EINVAL;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state != WLCORE_STATE_ON))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl);
+ if (ret < 0)
+ goto out;
+
+ ret = wl18xx_cmd_radar_detection_debug(wl, channel);
+ if (ret < 0)
+ count = ret;
+
+ wl1271_ps_elp_sleep(wl);
+out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static const struct file_operations radar_detection_ops = {
+ .write = radar_detection_write,
+ .open = simple_open,
+ .llseek = default_llseek,
+};
+
int wl18xx_debugfs_add_files(struct wl1271 *wl,
struct dentry *rootdir)
{
@@ -390,6 +432,7 @@ int wl18xx_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_FWSTATS_ADD(mem, fw_gen_free_mem_blks);
DEBUGFS_ADD(conf, moddir);
+ DEBUGFS_ADD(radar_detection, moddir);
return 0;