Re: [PATCH 3/3] modetest: Add a command line parameter to select the driver

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On Fri, 08 Feb 2013, Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> If the -M parameter is specific, modetest will use the requested device
> name instead of trying its builtin list of device names.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
>  tests/modetest/modetest.c | 34 +++++++++++++++++++++++++++-------
>  1 file changed, 27 insertions(+), 7 deletions(-)
>
> diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
> index 34457e2..b6298fc 100644
> --- a/tests/modetest/modetest.c
> +++ b/tests/modetest/modetest.c
> @@ -908,6 +908,9 @@ void usage(char *name)
>  	fprintf(stderr, "\t-s <connector_id>[@<crtc_id>]:<mode>[@<format>]\tset a mode\n");
>  	fprintf(stderr, "\t-v\ttest vsynced page flipping\n");
>  
> +	fprintf(stderr, "\n Generic options:\n\n");
> +	fprintf(stderr, "\t-M module\tuse the given driver\n");
> +
>  	fprintf(stderr, "\n\tDefault is to dump all info.\n");
>  	exit(0);
>  }
> @@ -935,7 +938,7 @@ static int page_flipping_supported(void)
>  #endif
>  }
>  
> -static char optstr[] = "cefmP:ps:v";
> +static char optstr[] = "cefM:mP:ps:v";
>  
>  int main(int argc, char **argv)
>  {
> @@ -943,6 +946,7 @@ int main(int argc, char **argv)
>  	int encoders = 0, connectors = 0, crtcs = 0, planes = 0, framebuffers = 0;
>  	int test_vsync = 0;
>  	char *modules[] = { "i915", "radeon", "nouveau", "vmwgfx", "omapdrm", "exynos" };
> +	char *module = NULL;
>  	unsigned int i;
>  	int count = 0, plane_count = 0;
>  	struct connector con_args[2];
> @@ -960,6 +964,9 @@ int main(int argc, char **argv)
>  		case 'f':
>  			framebuffers = 1;
>  			break;
> +		case 'M':
> +			module = optarg;
> +			break;
>  		case 'm':
>  			modes = 1;
>  			break;
> @@ -989,14 +996,27 @@ int main(int argc, char **argv)
>  	if (argc == 1)
>  		encoders = connectors = crtcs = planes = modes = framebuffers = 1;
>  
> -	for (i = 0; i < ARRAY_SIZE(modules); i++) {
> -		printf("trying to load module %s...", modules[i]);
> +	if (module) {
>  		fd = drmOpen(modules[i], NULL);

If this worked for you, I presume you have some uncommitted changes in
your tree. ;) The compiler should cry about uninitialized use of i too.

fd = drmOpen(module, NULL); ?

>  		if (fd < 0) {
> -			printf("failed.\n");
> -		} else {
> -			printf("success.\n");
> -			break;
> +			printf("failed to open device '%s'.\n", module);
> +			return 1;
> +		}
> +	} else {
> +		for (i = 0; i < ARRAY_SIZE(modules); i++) {
> +			printf("trying to open device '%s'...", modules[i]);
> +			fd = drmOpen(modules[i], NULL);
> +			if (fd < 0) {
> +				printf("failed.\n");
> +			} else {
> +				printf("success.\n");
> +				break;
> +			}
> +		}
> +
> +		if (fd < 0) {
> +			printf("no device found.\n", module);

Extra param to printf.


BR,
Jani.

> +			return 1;
>  		}
>  	}
>  
> -- 
> 1.7.12.4
>
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