Re: [PATCH v3 1/2] Input: synaptics-rmi4 - add sysfs attribute update_fw_status

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Sat, Jan 28, 2017 at 07:06:01PM +0000, Nick Dyer wrote:
> The attribute returns the percentage complete. If the firmware update fails, it
> reports a negative error code.
> 
> Signed-off-by: Nick Dyer <nick@shmanahar.org>
> Tested-by: Chris Healy <cphealy@gmail.com>
> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Applied, thank you.

> ---
>  drivers/input/rmi4/rmi_f34.c   | 40 +++++++++++++++++++++++++++++++++++++++-
>  drivers/input/rmi4/rmi_f34.h   |  4 ++++
>  drivers/input/rmi4/rmi_f34v7.c | 11 +++++++++++
>  3 files changed, 54 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c
> index c3285ce..048e593 100644
> --- a/drivers/input/rmi4/rmi_f34.c
> +++ b/drivers/input/rmi4/rmi_f34.c
> @@ -157,6 +157,9 @@ static int rmi_f34_write_blocks(struct f34_data *f34, const void *data,
>  			i + 1, block_count);
>  
>  		data += f34->v5.block_size;
> +		f34->update_progress += f34->v5.block_size;
> +		f34->update_status = (f34->update_progress * 100) /
> +			f34->update_size;
>  	}
>  
>  	return 0;
> @@ -186,6 +189,8 @@ static int rmi_f34_flash_firmware(struct f34_data *f34,
>  	struct rmi_function *fn = f34->fn;
>  	int ret;
>  
> +	f34->update_progress = 0;
> +	f34->update_size = syn_fw->image_size + syn_fw->config_size;
>  	if (syn_fw->image_size) {
>  		dev_info(&fn->dev, "Erasing firmware...\n");
>  		ret = rmi_f34_command(f34, F34_ERASE_ALL,
> @@ -283,6 +288,17 @@ out:
>  	return ret;
>  }
>  
> +int rmi_f34_status(struct rmi_function *fn)
> +{
> +	struct f34_data *f34 = dev_get_drvdata(&fn->dev);
> +
> +	/*
> +	 * The status is the percentage complete, or once complete,
> +	 * zero for success or a negative return code.
> +	 */
> +	return f34->update_status;
> +}
> +
>  static int rmi_firmware_update(struct rmi_driver_data *data,
>  			       const struct firmware *fw)
>  {
> @@ -346,7 +362,12 @@ static int rmi_firmware_update(struct rmi_driver_data *data,
>  	else
>  		ret = rmi_f34_update_firmware(f34, fw);
>  
> -	dev_info(&f34->fn->dev, "Firmware update complete, status:%d\n", ret);
> +	if (ret) {
> +		f34->update_status = ret;
> +		dev_err(&f34->fn->dev, "Firmware update failed, status:%d\n", ret);
> +	} else {
> +		dev_info(&f34->fn->dev, "Firmware update complete\n");
> +	}
>  
>  	rmi_disable_irq(rmi_dev, false);
>  
> @@ -414,8 +435,25 @@ static ssize_t rmi_driver_update_fw_store(struct device *dev,
>  
>  static DEVICE_ATTR(update_fw, 0200, NULL, rmi_driver_update_fw_store);
>  
> +static ssize_t rmi_driver_update_fw_status_show(struct device *dev,
> +						struct device_attribute *dattr,
> +						char *buf)
> +{
> +	struct rmi_driver_data *data = dev_get_drvdata(dev);
> +	int update_status = 0;
> +
> +	if (data->f34_container)
> +		update_status = rmi_f34_status(data->f34_container);
> +
> +	return scnprintf(buf, PAGE_SIZE, "%d\n", update_status);
> +}
> +
> +static DEVICE_ATTR(update_fw_status, 0444,
> +		   rmi_driver_update_fw_status_show, NULL);
> +
>  static struct attribute *rmi_firmware_attrs[] = {
>  	&dev_attr_update_fw.attr,
> +	&dev_attr_update_fw_status.attr,
>  	NULL
>  };
>  
> diff --git a/drivers/input/rmi4/rmi_f34.h b/drivers/input/rmi4/rmi_f34.h
> index 2c21056..43a9134 100644
> --- a/drivers/input/rmi4/rmi_f34.h
> +++ b/drivers/input/rmi4/rmi_f34.h
> @@ -301,6 +301,10 @@ struct f34_data {
>  	unsigned char bootloader_id[5];
>  	unsigned char configuration_id[CONFIG_ID_SIZE*2 + 1];
>  
> +	int update_status;
> +	int update_progress;
> +	int update_size;
> +
>  	union {
>  		struct f34v5_data v5;
>  		struct f34v7_data v7;
> diff --git a/drivers/input/rmi4/rmi_f34v7.c b/drivers/input/rmi4/rmi_f34v7.c
> index ca31f95..56c6c39 100644
> --- a/drivers/input/rmi4/rmi_f34v7.c
> +++ b/drivers/input/rmi4/rmi_f34v7.c
> @@ -588,6 +588,7 @@ static int rmi_f34v7_check_ui_firmware_size(struct f34_data *f34)
>  	u16 block_count;
>  
>  	block_count = f34->v7.img.ui_firmware.size / f34->v7.block_size;
> +	f34->update_size += block_count;
>  
>  	if (block_count != f34->v7.blkcount.ui_firmware) {
>  		dev_err(&f34->fn->dev,
> @@ -604,6 +605,7 @@ static int rmi_f34v7_check_ui_config_size(struct f34_data *f34)
>  	u16 block_count;
>  
>  	block_count = f34->v7.img.ui_config.size / f34->v7.block_size;
> +	f34->update_size += block_count;
>  
>  	if (block_count != f34->v7.blkcount.ui_config) {
>  		dev_err(&f34->fn->dev, "UI config size mismatch\n");
> @@ -618,6 +620,7 @@ static int rmi_f34v7_check_dp_config_size(struct f34_data *f34)
>  	u16 block_count;
>  
>  	block_count = f34->v7.img.dp_config.size / f34->v7.block_size;
> +	f34->update_size += block_count;
>  
>  	if (block_count != f34->v7.blkcount.dp_config) {
>  		dev_err(&f34->fn->dev, "Display config size mismatch\n");
> @@ -632,6 +635,8 @@ static int rmi_f34v7_check_guest_code_size(struct f34_data *f34)
>  	u16 block_count;
>  
>  	block_count = f34->v7.img.guest_code.size / f34->v7.block_size;
> +	f34->update_size += block_count;
> +
>  	if (block_count != f34->v7.blkcount.guest_code) {
>  		dev_err(&f34->fn->dev, "Guest code size mismatch\n");
>  		return -EINVAL;
> @@ -645,6 +650,7 @@ static int rmi_f34v7_check_bl_config_size(struct f34_data *f34)
>  	u16 block_count;
>  
>  	block_count = f34->v7.img.bl_config.size / f34->v7.block_size;
> +	f34->update_size += block_count;
>  
>  	if (block_count != f34->v7.blkcount.bl_config) {
>  		dev_err(&f34->fn->dev, "Bootloader config size mismatch\n");
> @@ -881,6 +887,9 @@ static int rmi_f34v7_write_f34v7_blocks(struct f34_data *f34,
>  
>  		block_ptr += (transfer * f34->v7.block_size);
>  		remaining -= transfer;
> +		f34->update_progress += transfer;
> +		f34->update_status = (f34->update_progress * 100) /
> +				     f34->update_size;
>  	} while (remaining);
>  
>  	return 0;
> @@ -1191,6 +1200,8 @@ int rmi_f34v7_do_reflash(struct f34_data *f34, const struct firmware *fw)
>  	rmi_f34v7_read_queries_bl_version(f34);
>  
>  	f34->v7.image = fw->data;
> +	f34->update_progress = 0;
> +	f34->update_size = 0;
>  
>  	ret = rmi_f34v7_parse_image_info(f34);
>  	if (ret < 0)
> -- 
> 2.7.4
> 

-- 
Dmitry