From: Xinming Hu <huxm@xxxxxxxxxxx>
This patch add 'verext' debugfs item, which can be used to
get detailed chip specific information from our firmware.
Examples:
echo "1" > /sys/kernel/debug/mwifiex/mlan0/verext
cat /sys/kernel/debug/mwifiex/mlan0/verext
Signed-off-by: Shengzhen Li <szli@xxxxxxxxxxx>
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
---
drivers/net/wireless/marvell/mwifiex/README | 10 +++++
drivers/net/wireless/marvell/mwifiex/debugfs.c | 51 +++++++++++++++++++++++-
drivers/net/wireless/marvell/mwifiex/main.h | 3 +-
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c | 3 +-
4 files changed, 63 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/README b/drivers/net/wireless/marvell/mwifiex/README
index 2f0f9b5..24e649b 100644
--- a/drivers/net/wireless/marvell/mwifiex/README
+++ b/drivers/net/wireless/marvell/mwifiex/README
@@ -237,4 +237,14 @@ device_dump
cat fw_dump
+verext
+ This command is used to get extended firmware version string using
+ different configuration parameters.
+
+ Usage:
+ echo "[version_str_sel]" > verext
+ cat verext
+
+ [version_str_sel]: firmware support several extend version
+ string cases, include 0/1/10/20/21/99
===============================================================================
diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c b/drivers/net/wireless/marvell/mwifiex/debugfs.c
index 5e55629..13fe384 100644
--- a/drivers/net/wireless/marvell/mwifiex/debugfs.c
+++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c
@@ -95,8 +95,7 @@ mwifiex_info_read(struct file *file, char __user *ubuf,
mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
- if (!priv->version_str[0])
- mwifiex_get_ver_ext(priv);
+ mwifiex_get_ver_ext(priv, 0);
p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
p += sprintf(p, "driver_version = %s", fmt);
@@ -596,6 +595,52 @@ done:
return ret;
}
+/* debugfs verext file write handler.
+ * This function is called when the 'verext' file is opened for write
+ */
+static ssize_t
+mwifiex_verext_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ int ret;
+ u32 versionstrsel;
+ struct mwifiex_private *priv = (void *)file->private_data;
+ char buf[16];
+
+ memset(buf, 0, sizeof(buf));
+
+ if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
+ ret = kstrtou32(buf, 10, &versionstrsel);
+ if (ret)
+ return ret;
+
+ priv->versionstrsel = versionstrsel;
+
+ return count;
+}
+
+/* Proc verext file read handler.
+ * This function is called when the 'verext' file is opened for reading
+ * This function can be used read driver exteneed verion string.
+ */
+static ssize_t
+mwifiex_verext_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *)file->private_data;
+ char buf[256];
+ int ret;
+
+ mwifiex_get_ver_ext(priv, priv->versionstrsel);
+ ret = snprintf(buf, sizeof(buf), "version string: %s\n",
+ priv->version_str);
+
+ return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
+}
+
/* Proc memrw file write handler.
* This function is called when the 'memrw' file is opened for writing
* This function can be used to write to a memory location.
@@ -972,6 +1017,7 @@ MWIFIEX_DFS_FILE_OPS(histogram);
MWIFIEX_DFS_FILE_OPS(debug_mask);
MWIFIEX_DFS_FILE_OPS(timeshare_coex);
MWIFIEX_DFS_FILE_WRITE_OPS(reset);
+MWIFIEX_DFS_FILE_OPS(verext);
/*
* This function creates the debug FS directory structure and the files.
@@ -1000,6 +1046,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
MWIFIEX_DFS_ADD_FILE(debug_mask);
MWIFIEX_DFS_ADD_FILE(timeshare_coex);
MWIFIEX_DFS_ADD_FILE(reset);
+ MWIFIEX_DFS_ADD_FILE(verext);
}
/*
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
index c08be79..35ab052 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -616,6 +616,7 @@ struct mwifiex_private {
spinlock_t curr_bcn_buf_lock;
struct wireless_dev wdev;
struct mwifiex_chan_freq_power cfp;
+ u32 versionstrsel;
char version_str[128];
#ifdef CONFIG_DEBUG_FS
struct dentry *dfs_dev_dir;
@@ -1418,7 +1419,7 @@ int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
int mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len);
-int mwifiex_get_ver_ext(struct mwifiex_private *priv);
+int mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel);
int mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
struct ieee80211_channel *chan,
diff --git a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
index 6a4fc5d..210b257 100644
--- a/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
@@ -1114,11 +1114,12 @@ int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
* with requisite parameters and calls the IOCTL handler.
*/
int
-mwifiex_get_ver_ext(struct mwifiex_private *priv)
+mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
{
struct mwifiex_ver_ext ver_ext;
memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
+ ver_ext.version_str_sel = version_str_sel;
if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
return -1;
--
1.8.1.4
--
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