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ath6kl: Add debugfs files for roaming control 

Roaming mode can be changed by writing roam mode (default, bssbias, or
lock) to roam_mode. Forced roam can be requested by writing the BSSID
into force_roam.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2011-10-11 17:31:55 +03:00 committed by Kalle Valo
parent 4b28a80dd6
commit 1261875f7a
3 changed files with 139 additions and 6 deletions
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84
drivers/net/wireless/ath/ath6kl/debug.c
View File

@ -1071,6 +1071,84 @@ static const struct file_operations fops_roam_table = {
.llseek = default_llseek,
};
static ssize_t ath6kl_force_roam_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath6kl *ar = file->private_data;
int ret;
char buf[20];
size_t len;
u8 bssid[ETH_ALEN];
int i;
int addr[ETH_ALEN];
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x",
&addr[0], &addr[1], &addr[2], &addr[3], &addr[4], &addr[5])
!= ETH_ALEN)
return -EINVAL;
for (i = 0; i < ETH_ALEN; i++)
bssid[i] = addr[i];
ret = ath6kl_wmi_force_roam_cmd(ar->wmi, bssid);
if (ret)
return ret;
return count;
}
static const struct file_operations fops_force_roam = {
.write = ath6kl_force_roam_write,
.open = ath6kl_debugfs_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static ssize_t ath6kl_roam_mode_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath6kl *ar = file->private_data;
int ret;
char buf[20];
size_t len;
enum wmi_roam_mode mode;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = '\0';
if (strcasecmp(buf, "default") == 0)
mode = WMI_DEFAULT_ROAM_MODE;
else if (strcasecmp(buf, "bssbias") == 0)
mode = WMI_HOST_BIAS_ROAM_MODE;
else if (strcasecmp(buf, "lock") == 0)
mode = WMI_LOCK_BSS_MODE;
else
return -EINVAL;
ret = ath6kl_wmi_set_roam_mode_cmd(ar->wmi, mode);
if (ret)
return ret;
return count;
}
static const struct file_operations fops_roam_mode = {
.write = ath6kl_roam_mode_write,
.open = ath6kl_debugfs_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
int ath6kl_debug_init(struct ath6kl *ar)
{
ar->debug.fwlog_buf.buf = vmalloc(ATH6KL_FWLOG_SIZE);
@ -1132,6 +1210,12 @@ int ath6kl_debug_init(struct ath6kl *ar)
debugfs_create_file("roam_table", S_IRUSR, ar->debugfs_phy, ar,
&fops_roam_table);
debugfs_create_file("force_roam", S_IWUSR, ar->debugfs_phy, ar,
&fops_force_roam);
debugfs_create_file("roam_mode", S_IWUSR, ar->debugfs_phy, ar,
&fops_roam_mode);
return 0;
}

40
drivers/net/wireless/ath/ath6kl/wmi.c
View File

@ -682,6 +682,46 @@ int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
return 0;
}
int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
{
struct sk_buff *skb;
struct roam_ctrl_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct roam_ctrl_cmd *) skb->data;
memset(cmd, 0, sizeof(*cmd));
memcpy(cmd->info.bssid, bssid, ETH_ALEN);
cmd->roam_ctrl = WMI_FORCE_ROAM;
ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
return ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_ROAM_CTRL_CMDID,
NO_SYNC_WMIFLAG);
}
int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
{
struct sk_buff *skb;
struct roam_ctrl_cmd *cmd;
skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
if (!skb)
return -ENOMEM;
cmd = (struct roam_ctrl_cmd *) skb->data;
memset(cmd, 0, sizeof(*cmd));
cmd->info.roam_mode = mode;
cmd->roam_ctrl = WMI_SET_ROAM_MODE;
ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
return ath6kl_wmi_cmd_send(wmi, skb, WMI_SET_ROAM_CTRL_CMDID,
NO_SYNC_WMIFLAG);
}
static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len)
{
struct wmi_connect_event *ev;

21
drivers/net/wireless/ath/ath6kl/wmi.h
View File

@ -1354,14 +1354,20 @@ enum wmi_roam_ctrl {
WMI_SET_LRSSI_SCAN_PARAMS,
};
enum wmi_roam_mode {
WMI_DEFAULT_ROAM_MODE = 1, /* RSSI based roam */
WMI_HOST_BIAS_ROAM_MODE = 2, /* Host bias based roam */
WMI_LOCK_BSS_MODE = 3, /* Lock to the current BSS */
};
struct bss_bias {
u8 bssid[ETH_ALEN];
u8 bias;
s8 bias;
} __packed;
struct bss_bias_info {
u8 num_bss;
struct bss_bias bss_bias[1];
struct bss_bias bss_bias[0];
} __packed;
struct low_rssi_scan_params {
@ -1374,10 +1380,11 @@ struct low_rssi_scan_params {
struct roam_ctrl_cmd {
union {
u8 bssid[ETH_ALEN];
u8 roam_mode;
struct bss_bias_info bss;
struct low_rssi_scan_params params;
u8 bssid[ETH_ALEN]; /* WMI_FORCE_ROAM */
u8 roam_mode; /* WMI_SET_ROAM_MODE */
struct bss_bias_info bss; /* WMI_SET_HOST_BIAS */
struct low_rssi_scan_params params; /* WMI_SET_LRSSI_SCAN_PARAMS
*/
} __packed info;
u8 roam_ctrl;
} __packed;
@ -2237,6 +2244,8 @@ s32 ath6kl_wmi_get_rate(s8 rate_index);
int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, struct wmi_set_ip_cmd *ip_cmd);
int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi);
int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid);
int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode);
/* AP mode */
int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, struct wmi_connect_cmd *p);