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path: root/drivers/net/wireless/mwifiex/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/mwifiex/debugfs.c')
-rw-r--r--drivers/net/wireless/mwifiex/debugfs.c165
1 files changed, 154 insertions, 11 deletions
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c
index 1fb329dc6744..5a0636d43a1b 100644
--- a/drivers/net/wireless/mwifiex/debugfs.c
+++ b/drivers/net/wireless/mwifiex/debugfs.c
@@ -152,24 +152,24 @@ free_and_exit:
}
/*
- * Proc firmware dump read handler.
+ * Proc device dump read handler.
*
- * This function is called when the 'fw_dump' file is opened for
+ * This function is called when the 'device_dump' file is opened for
* reading.
- * This function dumps firmware memory in different files
- * (ex. DTCM, ITCM, SQRAM etc.) based on the the segments for
+ * This function dumps driver information and firmware memory segments
+ * (ex. DTCM, ITCM, SQRAM etc.) for
* debugging.
*/
static ssize_t
-mwifiex_fw_dump_read(struct file *file, char __user *ubuf,
- size_t count, loff_t *ppos)
+mwifiex_device_dump_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
{
struct mwifiex_private *priv = file->private_data;
- if (!priv->adapter->if_ops.fw_dump)
+ if (!priv->adapter->if_ops.device_dump)
return -EIO;
- priv->adapter->if_ops.fw_dump(priv->adapter);
+ priv->adapter->if_ops.device_dump(priv->adapter);
return 0;
}
@@ -535,6 +535,144 @@ done:
return ret;
}
+/* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+static ssize_t
+mwifiex_debug_mask_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *)file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)page;
+ size_t ret = 0;
+ int pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
+ priv->adapter->debug_mask);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(page);
+ return ret;
+}
+
+/* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+static ssize_t
+mwifiex_debug_mask_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ int ret;
+ unsigned long debug_mask;
+ struct mwifiex_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (void *)addr;
+ size_t buf_size = min(count, (size_t)(PAGE_SIZE - 1));
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (copy_from_user(buf, ubuf, buf_size)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ if (kstrtoul(buf, 0, &debug_mask)) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ priv->adapter->debug_mask = debug_mask;
+ ret = count;
+done:
+ free_page(addr);
+ return 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.
+ */
+static ssize_t
+mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count,
+ loff_t *ppos)
+{
+ int ret;
+ char cmd;
+ struct mwifiex_ds_mem_rw mem_rw;
+ u16 cmd_action;
+ struct mwifiex_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (void *)addr;
+ size_t buf_size = min(count, (size_t)(PAGE_SIZE - 1));
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (copy_from_user(buf, ubuf, buf_size)) {
+ ret = -EFAULT;
+ goto done;
+ }
+
+ ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if ((cmd == 'r') || (cmd == 'R')) {
+ cmd_action = HostCmd_ACT_GEN_GET;
+ mem_rw.value = 0;
+ } else if ((cmd == 'w') || (cmd == 'W')) {
+ cmd_action = HostCmd_ACT_GEN_SET;
+ } else {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
+ if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0,
+ &mem_rw, true))
+ ret = -1;
+ else
+ ret = count;
+
+done:
+ free_page(addr);
+ return ret;
+}
+
+/* Proc memrw file read handler.
+ * This function is called when the 'memrw' file is opened for reading
+ * This function can be used to read from a memory location.
+ */
+static ssize_t
+mwifiex_memrw_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct mwifiex_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int ret, pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
+ priv->mem_rw.value);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+}
+
static u32 saved_offset = -1, saved_bytes = -1;
/*
@@ -654,7 +792,8 @@ mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
if (arg_num > 3) {
- dev_err(priv->adapter->dev, "Too many arguments\n");
+ mwifiex_dbg(priv->adapter, ERROR,
+ "Too many arguments\n");
ret = -EINVAL;
goto done;
}
@@ -746,11 +885,13 @@ static const struct file_operations mwifiex_dfs_##name##_fops = { \
MWIFIEX_DFS_FILE_READ_OPS(info);
MWIFIEX_DFS_FILE_READ_OPS(debug);
MWIFIEX_DFS_FILE_READ_OPS(getlog);
-MWIFIEX_DFS_FILE_READ_OPS(fw_dump);
+MWIFIEX_DFS_FILE_READ_OPS(device_dump);
MWIFIEX_DFS_FILE_OPS(regrdwr);
MWIFIEX_DFS_FILE_OPS(rdeeprom);
+MWIFIEX_DFS_FILE_OPS(memrw);
MWIFIEX_DFS_FILE_OPS(hscfg);
MWIFIEX_DFS_FILE_OPS(histogram);
+MWIFIEX_DFS_FILE_OPS(debug_mask);
/*
* This function creates the debug FS directory structure and the files.
@@ -772,9 +913,11 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
MWIFIEX_DFS_ADD_FILE(getlog);
MWIFIEX_DFS_ADD_FILE(regrdwr);
MWIFIEX_DFS_ADD_FILE(rdeeprom);
- MWIFIEX_DFS_ADD_FILE(fw_dump);
+ MWIFIEX_DFS_ADD_FILE(device_dump);
+ MWIFIEX_DFS_ADD_FILE(memrw);
MWIFIEX_DFS_ADD_FILE(hscfg);
MWIFIEX_DFS_ADD_FILE(histogram);
+ MWIFIEX_DFS_ADD_FILE(debug_mask);
}
/*