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wl18xx: add debugfs file to emulate radar event

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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>
This commit is contained in:
Eliad Peller 2014-12-29 08:24:08 +02:00 committed by Kalle Valo
parent 750e9d15e2
commit e7d323243f
4 changed files with 79 additions and 0 deletions
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26
drivers/net/wireless/ti/wl18xx/cmd.c
View File

@ -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;
}

8
drivers/net/wireless/ti/wl18xx/cmd.h
View File

@ -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

43
drivers/net/wireless/ti/wl18xx/debugfs.c
View File

@ -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;

2
drivers/net/wireless/ti/wlcore/ps.c
View File

@ -102,6 +102,7 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
msecs_to_jiffies(timeout));
}
EXPORT_SYMBOL_GPL(wl1271_ps_elp_sleep);
int wl1271_ps_elp_wakeup(struct wl1271 *wl)
{
@ -169,6 +170,7 @@ err:
out:
return 0;
}
EXPORT_SYMBOL_GPL(wl1271_ps_elp_wakeup);
int wl1271_ps_set_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
enum wl1271_cmd_ps_mode mode)