Re: [PATCH 07/12] imx-usb-loader: Add i.MX8MP support

[Marco Felsch <m.felsch@pengutronix.de>]

Hi Sascha,

please see below.

On 22-07-14, Sascha Hauer wrote:
> For the i.MX8MP NXP dropped the SDP protocol used on other SoCs.
> Instead the image is just sent straight to the device.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  scripts/imx/imx-usb-loader.c | 37 +++++++++++++++++++++++++++---------
>  1 file changed, 28 insertions(+), 9 deletions(-)
> 
> diff --git a/scripts/imx/imx-usb-loader.c b/scripts/imx/imx-usb-loader.c
> index 5f7dc3bc0b..974ff741bf 100644
> --- a/scripts/imx/imx-usb-loader.c
> +++ b/scripts/imx/imx-usb-loader.c
> @@ -74,6 +74,7 @@ struct mach_id {
>  #define DEV_IMX		0
>  #define DEV_MXS		1
>  	unsigned char dev_type;
> +	unsigned char hid_endpoint;
>  };
>  
>  struct usb_work {
> @@ -180,6 +181,14 @@ static const struct mach_id imx_ids[] = {
>  		.header_type = HDR_MX53,
>  		.mode = MODE_HID,
>  		.max_transfer = 1024,
> +	}, {
> +		.vid = 0x1fc9,
> +		.pid = 0x0146,
> +		.name = "i.MX8MP",
> +		.header_type = HDR_MX53,
> +		.max_transfer = 1020,
> +		.mode = MODE_HID,
> +		.hid_endpoint = 1,
>  	}, {
>  		.vid = 0x1fc9,
>  		.pid = 0x012b,
> @@ -470,15 +479,22 @@ static int transfer(int report, unsigned char *p, unsigned cnt, int *last_trans)
>  
>  		if (report < 3) {
>  			memcpy(&tmp[1], p, cnt);
> -			err = libusb_control_transfer(usb_dev_handle,
> -					CTRL_OUT,
> -					HID_SET_REPORT,
> -					(HID_REPORT_TYPE_OUTPUT << 8) | report,
> -					0,
> -					tmp, cnt + 1, 1000);
> -			*last_trans = (err > 0) ? err - 1 : 0;
> -			if (err > 0)
> -				err = 0;
> +			if (mach_id->hid_endpoint) {
> +				int trans;
> +				err = libusb_interrupt_transfer(usb_dev_handle,
> +						mach_id->hid_endpoint, tmp, cnt + 1, &trans, 1000);
> +				*last_trans = trans - 1;
> +			} else {
> +				err = libusb_control_transfer(usb_dev_handle,
> +						CTRL_OUT,
> +						HID_SET_REPORT,
> +						(HID_REPORT_TYPE_OUTPUT << 8) | report,
> +						0,
> +						tmp, cnt + 1, 1000);
> +				*last_trans = (err > 0) ? err - 1 : 0;
> +				if (err > 0)
> +					err = 0;
> +			}
>  		} else {
>  			*last_trans = 0;
>  			memset(&tmp[1], 0, cnt);
> @@ -1353,6 +1369,9 @@ static int do_irom_download(struct usb_work *curr, int verify)
>  
>  	header_offset = ret;
>  
> +	if (mach_id->hid_endpoint)
> +		return send_file(buf + header_offset, fsize - header_offset);
                         ^
This function is defined nowhere and the compiler aborts. Did you forget
to send a patch defining this function?

Regards,
  Marco

> +
>  	if (plugin && (!curr->plug)) {
>  		printf("Only plugin header found\n");
>  		ret = -1;
> -- 
> 2.30.2
> 
> 
>