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Commit ff974e40 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: debugfs interface to send raw WMI command 



Debug aid

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d5b1c32f

drivers/net/wireless/ath/wil6210/debugfs.c

+41 −0
Original line number Diff line number Diff line
@@ -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;