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Commit 1c09bf68 authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by John W. Linville
Browse files

mwifiex: add fw_dump debugfs file 



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: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bc0df75a

drivers/net/wireless/mwifiex/README

+7 −0
Original line number Diff line number Diff line
@@ -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



===============================================================================

drivers/net/wireless/mwifiex/debugfs.c

+25 −0
Original line number Diff line number Diff line
@@ -256,6 +256,29 @@ free_and_exit: 
	return ret;

}



/*

 * 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.

 *
@@ -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);

}



/*

drivers/net/wireless/mwifiex/main.h

+1 −0
Original line number Diff line number Diff line
@@ -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);

};