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Commit 97b2a01e authored by Amy Maloche's avatar Amy Maloche Committed by Sudhakar Manapati
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input: synaptics: Add debugfs entry for dump info 



Add a debugfs entry to display information about
controller to the user.

This patch is propagated from msm-3.4 kernel
(commit: d9bf0d9b2e7648dac74f0d8af04b5def1d69ff02
input: synaptics: Add debugfs entry for dump info)
Also cleaned the checkpatch warning on msm-3.18 kernel.

Change-Id: Ib358cad4bb2c81aa0194b41bc5159dffda393eeb
Signed-off-by: default avatarAmy Maloche <amaloche@codeaurora.org>
Signed-off-by: default avatarSudhakar Manapati <smanap@codeaurora.org>
parent ac81d511

drivers/input/touchscreen/synaptics_fw_update.c

+71 −1
Original line number Diff line number Diff line
@@ -52,6 +52,14 @@ 
#define BLOCK_NUMBER_OFFSET 0

#define BLOCK_DATA_OFFSET 2



#define RMI4_INFO_MAX_LEN	200



#define RMI4_STORE_TS_INFO(buf, id, rev, fw_ver) \

		snprintf(buf, RMI4_INFO_MAX_LEN, \

			"controller\t= synaptics\n" \

			"model\t\t= %d rev %d\n" \

			"fw_ver\t\t= %d\n", id, rev, fw_ver)



enum falsh_config_area {

	UI_CONFIG_AREA = 0x00,

	PERM_CONFIG_AREA = 0x01,
@@ -246,6 +254,7 @@ struct synaptics_rmi4_fwu_handle { 
	struct workqueue_struct *fwu_workqueue;

	struct delayed_work fwu_work;

	char firmware_name[NAME_BUFFER_SIZE];

	char *ts_info;

};



static struct synaptics_rmi4_fwu_handle *fwu;
@@ -268,6 +277,26 @@ static unsigned int extract_uint_be(const unsigned char *ptr) 
			(unsigned int)ptr[0] * 0x1000000;

}



static void synaptics_rmi4_update_debug_info(void)

{

	unsigned char pkg_id[4];

	unsigned int build_id;

	struct synaptics_rmi4_device_info *rmi;

	/* read device package id */

	fwu->fn_ptr->read(fwu->rmi4_data,

				fwu->f01_fd.query_base_addr + 17,

				pkg_id,

				sizeof(pkg_id));

	rmi = &(fwu->rmi4_data->rmi4_mod_info);



	build_id = (unsigned int)rmi->build_id[0] +

			(unsigned int)rmi->build_id[1] * 0x100 +

			(unsigned int)rmi->build_id[2] * 0x10000;



	RMI4_STORE_TS_INFO(fwu->ts_info, pkg_id[1] << 8 | pkg_id[0],

		pkg_id[3] << 8 | pkg_id[2], build_id);

}



static void parse_header(struct image_header *header,

		const unsigned char *fw_image)

{
@@ -1366,6 +1395,8 @@ int synaptics_fw_updater(unsigned char *fw_data) 
	retval = fwu_start_reflash();

	fwu->rmi4_data->fw_updating = false;



	synaptics_rmi4_update_debug_info();



	return retval;

}

EXPORT_SYMBOL(synaptics_fw_updater);
@@ -1658,6 +1689,26 @@ static ssize_t fwu_sysfs_package_id_show(struct device *dev, 
		(pkg_id[3] << 8) | pkg_id[2]);

}



static int synaptics_rmi4_debug_dump_info(struct seq_file *m, void *v)

{

	seq_printf(m, "%s\n", fwu->ts_info);



	return 0;

}



static int debugfs_dump_info_open(struct inode *inode, struct file *file)

{

	return single_open(file, synaptics_rmi4_debug_dump_info,

			inode->i_private);

}



static const struct file_operations debug_dump_info_fops = {

	.owner		= THIS_MODULE,

	.open		= debugfs_dump_info_open,

	.read		= seq_read,

	.release	= single_release,

};



static void synaptics_rmi4_fwu_attn(struct synaptics_rmi4_data *rmi4_data,

		unsigned char intr_mask)

{
@@ -1734,6 +1785,7 @@ static int synaptics_rmi4_fwu_init(struct synaptics_rmi4_data *rmi4_data) 
	int retval;

	unsigned char attr_count;

	struct pdt_properties pdt_props;

	struct dentry *temp;



	fwu = kzalloc(sizeof(*fwu), GFP_KERNEL);

	if (!fwu)
@@ -1811,6 +1863,23 @@ static int synaptics_rmi4_fwu_init(struct synaptics_rmi4_data *rmi4_data) 
		}

	}



	temp = debugfs_create_file("dump_info", S_IRUSR | S_IWUSR,

			fwu->rmi4_data->dir, fwu->rmi4_data,

			&debug_dump_info_fops);

	if (temp == NULL || IS_ERR(temp)) {

		dev_err(&rmi4_data->i2c_client->dev,

			"%s: Failed to create debugfs dump info file\n",

			__func__);

		retval = PTR_ERR(temp);

		goto exit_remove_attrs;

	}



	fwu->ts_info = kzalloc(RMI4_INFO_MAX_LEN, GFP_KERNEL);

	if (!fwu->ts_info)

		goto exit_free_ts_info;



	synaptics_rmi4_update_debug_info();



#ifdef INSIDE_FIRMWARE_UPDATE

	fwu->fwu_workqueue = create_singlethread_workqueue("fwu_workqueue");

	INIT_DELAYED_WORK(&fwu->fwu_work, synaptics_rmi4_fwu_work);
@@ -1822,7 +1891,8 @@ static int synaptics_rmi4_fwu_init(struct synaptics_rmi4_data *rmi4_data) 
	init_completion(&remove_complete);



	return 0;



exit_free_ts_info:

	debugfs_remove(temp);

exit_remove_attrs:

for (attr_count--; attr_count >= 0; attr_count--) {

	sysfs_remove_file(&rmi4_data->input_dev->dev.kobj,