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wil6210: debugfs interface to send raw WMI command

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Debug aid

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 19:37:08 +03:00 • committed by John W. Linville
parent d5b1c32f51
commit ff974e4083
1 changed files with 41 additions and 0 deletions
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41
drivers/net/wireless/ath/wil6210/debugfs.c
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@ -513,6 +513,46 @@ static const struct file_operations fops_txmgmt = {
.open = simple_open,
};
/* Write WMI command (w/o mbox header) to this file to send it
* WMI starts from wil6210_mbox_hdr_wmi header
*/
static ssize_t wil_write_file_wmi(struct file *file, const char __user *buf,
size_t len, loff_t *ppos)
{
struct wil6210_priv *wil = file->private_data;
struct wil6210_mbox_hdr_wmi *wmi;
void *cmd;
int cmdlen = len - sizeof(struct wil6210_mbox_hdr_wmi);
u16 cmdid;
int rc, rc1;
if (cmdlen <= 0)
return -EINVAL;
wmi = kmalloc(len, GFP_KERNEL);
if (!wmi)
return -ENOMEM;
rc = simple_write_to_buffer(wmi, len, ppos, buf, len);
if (rc < 0)
return rc;
cmd = &wmi[1];
cmdid = le16_to_cpu(wmi->id);
rc1 = wmi_send(wil, cmdid, cmd, cmdlen);
kfree(wmi);
wil_info(wil, "%s(0x%04x[%d]) -> %d\n", __func__, cmdid, cmdlen, rc1);
return rc;
}
static const struct file_operations fops_wmi = {
.write = wil_write_file_wmi,
.open = simple_open,
};
static void wil_seq_hexdump(struct seq_file *s, void *p, int len,
const char *prefix)
{
@ -838,6 +878,7 @@ int wil6210_debugfs_init(struct wil6210_priv *wil)
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("wmi_send", S_IWUSR, dbg, wil, &fops_wmi);
debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp);
wil->rgf_blob.data = (void * __force)wil->csr + 0;