2011/4/5 Chris Wilson <ch...@chris-wilson.co.uk>:
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> ---
> drivers/gpu/drm/drm_modes.c | 52 +++++++++++++++++++++++++++++++++++++++++-
> 1 files changed, 50 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
> index 25bf873..b3e07ac 100644
> --- a/drivers/gpu/drm/drm_modes.c
> +++ b/drivers/gpu/drm/drm_modes.c
> @@ -853,6 +853,52 @@ void drm_mode_validate_clocks(struct drm_device *dev,
> }
> EXPORT_SYMBOL(drm_mode_validate_clocks);
>
> +static const char *mode_status_to_string(enum drm_mode_status status)
> +{
> + const char *strings[] = {
+ static?
> + [MODE_OK] = "OK",
> + [MODE_HSYNC] = "hsync out of range",
> + [MODE_VSYNC] = "vsync out of range",
> + [MODE_H_ILLEGAL] = "illegal horizontal timings",
> + [MODE_V_ILLEGAL] = "illegal vertical timings",
> + [MODE_BAD_WIDTH] = "requires an unsupported linepitch",
> + [MODE_NOMODE] = "no mode with a maching name",
s/maching/matching/
> + [MODE_NO_INTERLACE] = "interlaced mode not supported",
> + [MODE_NO_DBLESCAN] = "doublescan mode not supported",
> + [MODE_NO_VSCAN] = "multiscan mode not supported",
> + [MODE_MEM] = "insufficient video memory",
> + [MODE_VIRTUAL_X] = "mode width too large for specified
> virtual size",
> + [MODE_VIRTUAL_Y] = "mode height too large for specified
> virtual size",
> + [MODE_MEM_VIRT] = "insufficient video memory given virtual
> size",
> + [MODE_NOCLOCK] = "no fixed clock available",
> + [MODE_CLOCK_HIGH] = "clock required is too high",
> + [MODE_CLOCK_LOW] = "clock required is too low",
> + [MODE_CLOCK_RANGE] = "clock/mode isn't in a ClockRange",
> + [MODE_BAD_HVALUE] = "horizontal timing was out of range",
> + [MODE_BAD_VVALUE] = "vertical timing was out of range",
> + [MODE_BAD_VSCAN] = "VScan value out of range",
> + [MODE_HSYNC_NARROW] = "horizontal sync too narrow",
> + [MODE_HSYNC_WIDE] = "horizontal sync too wide",
> + [MODE_HBLANK_NARROW] = "horizontal blanking too narrow",
> + [MODE_HBLANK_WIDE] = "horizontal blanking too wide",
> + [MODE_VSYNC_NARROW] = "vertical sync too narrow",
> + [MODE_VSYNC_WIDE] = "vertical sync too wide",
> + [MODE_VBLANK_NARROW] = "vertical blanking too narrow",
> + [MODE_VBLANK_WIDE] = "vertical blanking too wide",
> + [MODE_PANEL] = "exceeds panel dimensions",
> + [MODE_INTERLACE_WIDTH] = "width too large for interlaced
> mode",
> + [MODE_ONE_WIDTH] = "only one width is supported",
> + [MODE_ONE_HEIGHT] = "only one height is supported",
> + [MODE_ONE_SIZE] = "only one resolution is supported",
> + [MODE_NO_REDUCED] = "monitor doesn't accept reduced blanking",
> + };
> +
> + if ((unsigned)status > ARRAY_SIZE(strings))
> -> >=
> + return "unknown";
> +
> + return strings[status];
> +}
> +
> /**
> * drm_mode_prune_invalid - remove invalid modes from mode list
> * @dev: DRM device
> @@ -876,8 +922,10 @@ void drm_mode_prune_invalid(struct drm_device *dev,
> list_del(&mode->head);
> if (verbose) {
> drm_mode_debug_printmodeline(mode);
> - DRM_DEBUG_KMS("Not using %s mode %d\n",
> - mode->name, mode->status);
> + DRM_DEBUG_KMS("Not using %s mode: %s [%d]\n",
> + mode->name,
> +
> mode_status_to_string(mode->status),
> + mode->status);
> }
> drm_mode_destroy(dev, mode);
> }
> --
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