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wil6210: Tx mgmt frame from debugfs

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Provide 2 files on the debugfs:
- "rxon": write channel (1..4) to open Rx on it, 0 to rxoff
- "tx_mgmt": write binary frame, starting from MAC header

one need to care about turning receiver on/off before/after tx_mgmt

Correct sequence is:
 echo $channel > rxon
 cat mfmt_frame > tx_mgmt
 echo 0 > rxon

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vladimir Kondratiev 2014-06-16 19:36:59 +03:00 • committed by John W. Linville
parent e8c58e7a5a
commit 0b39aaf2f2
3 changed files with 86 additions and 4 deletions
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7
drivers/net/wireless/ath/wil6210/cfg80211.c
View file

@ -443,10 +443,9 @@ static int wil_cfg80211_disconnect(struct wiphy *wiphy,
return rc;
}
static int wil_cfg80211_mgmt_tx(struct wiphy *wiphy,
struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params,
u64 *cookie)
int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params,
u64 *cookie)
{
const u8 *buf = params->buf;
size_t len = params->len;

80
drivers/net/wireless/ath/wil6210/debugfs.c
View file

@ -397,6 +397,84 @@ static const struct file_operations fops_reset = {
.write = wil_write_file_reset,
.open = simple_open,
};
/*---write channel 1..4 to rxon for it, 0 to rxoff---*/
static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,
size_t len, loff_t *ppos)
{
struct wil6210_priv *wil = file->private_data;
int rc;
long channel;
bool on;
char *kbuf = kmalloc(len + 1, GFP_KERNEL);
if (!kbuf)
return -ENOMEM;
if (copy_from_user(kbuf, buf, len))
return -EIO;
kbuf[len] = '\0';
rc = kstrtol(kbuf, 0, &channel);
kfree(kbuf);
if (rc)
return rc;
if ((channel < 0) || (channel > 4)) {
wil_err(wil, "Invalid channel %ld\n", channel);
return -EINVAL;
}
on = !!channel;
if (on) {
rc = wmi_set_channel(wil, (int)channel);
if (rc)
return rc;
}
rc = wmi_rxon(wil, on);
if (rc)
return rc;
return len;
}
static const struct file_operations fops_rxon = {
.write = wil_write_file_rxon,
.open = simple_open,
};
/*---tx_mgmt---*/
/* Write mgmt frame to this file to send it */
static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,
size_t len, loff_t *ppos)
{
struct wil6210_priv *wil = file->private_data;
struct wiphy *wiphy = wil_to_wiphy(wil);
struct wireless_dev *wdev = wil_to_wdev(wil);
struct cfg80211_mgmt_tx_params params;
int rc;
void *frame = kmalloc(len, GFP_KERNEL);
if (!frame)
return -ENOMEM;
if (copy_from_user(frame, buf, len))
return -EIO;
params.buf = frame;
params.len = len;
params.chan = wdev->preset_chandef.chan;
rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);
kfree(frame);
wil_info(wil, "%s() -> %d\n", __func__, rc);
return len;
}
static const struct file_operations fops_txmgmt = {
.write = wil_write_file_txmgmt,
.open = simple_open,
};
static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
const char *prefix)
@ -719,6 +797,8 @@ int wil6210_debugfs_init(struct wil6210_priv *wil)
debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread);
debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset);
debugfs_create_file("rxon", S_IWUSR, dbg, wil, &fops_rxon);
debugfs_create_file("tx_mgmt", S_IWUSR, dbg, wil, &fops_txmgmt);
debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp);
wil->rgf_blob.data = (void * __force)wil->csr + 0;

3
drivers/net/wireless/ath/wil6210/wil6210.h
View file

@ -504,6 +504,9 @@ int wil6210_init_irq(struct wil6210_priv *wil, int irq);
void wil6210_fini_irq(struct wil6210_priv *wil, int irq);
void wil6210_disable_irq(struct wil6210_priv *wil);
void wil6210_enable_irq(struct wil6210_priv *wil);
int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_mgmt_tx_params *params,
u64 *cookie);
int wil6210_debugfs_init(struct wil6210_priv *wil);
void wil6210_debugfs_remove(struct wil6210_priv *wil);