From ff974e4083341383d3dd4079e52ed30f57f376f0 Mon Sep 17 00:00:00 2001
From: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Date: Mon, 16 Jun 2014 19:37:08 +0300
Subject: [PATCH] wil6210: debugfs interface to send raw WMI command
Debug aid
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/wil6210/debugfs.c | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index 3c3abb6f30fe8..8767f4ce33f48 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -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;
--
2.30.2