From: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
This option be useful to dump firmware memory for debugging
purpose. Actual code to dump firmware momory for SDIO and PCIe
chipsets will be added later.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Signed-off-by: Bing Zhao <bzhao@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/README | 7 +++++++
drivers/net/wireless/mwifiex/debugfs.c | 25 +++++++++++++++++++++++++
drivers/net/wireless/mwifiex/main.h | 1 +
3 files changed, 33 insertions(+)
diff --git a/drivers/net/wireless/mwifiex/README b/drivers/net/wireless/mwifiex/README
index b9242c3..3b55ce5 100644
--- a/drivers/net/wireless/mwifiex/README
+++ b/drivers/net/wireless/mwifiex/README
@@ -200,4 +200,11 @@ getlog
cat getlog
+fw_dump
+ This command is used to dump firmware memory into files.
+ Separate file will be created for each memory segment.
+ Usage:
+
+ cat fw_dump
+
===============================================================================
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c
index b8a49aa..7b419bb 100644
--- a/drivers/net/wireless/mwifiex/debugfs.c
+++ b/drivers/net/wireless/mwifiex/debugfs.c
@@ -257,6 +257,29 @@ free_and_exit:
}
/*
+ * Proc firmware dump read handler.
+ *
+ * This function is called when the 'fw_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
+ * debugging.
+ */
+static ssize_t
+mwifiex_fw_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)
+ return -EIO;
+
+ priv->adapter->if_ops.fw_dump(priv->adapter);
+
+ return 0;
+}
+
+/*
* Proc getlog file read handler.
*
* This function is called when the 'getlog' file is opened for reading
@@ -699,6 +722,7 @@ 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_OPS(regrdwr);
MWIFIEX_DFS_FILE_OPS(rdeeprom);
@@ -722,6 +746,7 @@ 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);
}
/*
diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index ae8b042..3418119 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -672,6 +672,7 @@ struct mwifiex_if_ops {
int (*init_fw_port) (struct mwifiex_adapter *);
int (*dnld_fw) (struct mwifiex_adapter *, struct mwifiex_fw_image *);
void (*card_reset) (struct mwifiex_adapter *);
+ void (*fw_dump)(struct mwifiex_adapter *);
int (*clean_pcie_ring) (struct mwifiex_adapter *adapter);
};
--
1.8.2.3
--
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