From patchwork Fri Jun 7 15:43:04 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ville Syrjala X-Patchwork-Id: 2687681 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork1.kernel.org (Postfix) with ESMTP id 24FE03FC23 for ; Fri, 7 Jun 2013 15:43:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CF9F7E687E for ; Fri, 7 Jun 2013 08:43:23 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 32115E6645; Fri, 7 Jun 2013 08:43:10 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 07 Jun 2013 08:43:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.87,822,1363158000"; d="scan'208";a="325848694" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.168]) by orsmga001.jf.intel.com with SMTP; 07 Jun 2013 08:43:07 -0700 Received: by stinkbox (sSMTP sendmail emulation); Fri, 07 Jun 2013 18:43:07 +0300 From: ville.syrjala@linux.intel.com To: dri-devel@lists.freedesktop.org Subject: [PATCH 1/4] drm: Print pretty names for pixel formats Date: Fri, 7 Jun 2013 18:43:04 +0300 Message-Id: <1370619787-15341-1-git-send-email-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 1.8.1.5 MIME-Version: 1.0 Cc: intel-gfx@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org From: Foo Bar Rather than just printing the pixel format as a hex number, decode the fourcc into human readable form, and also decode the LE vs. BE flag. Keep printing the raw hex number too in case it contains non-printable characters. Some examples what the new drm_get_format_name() produces: DRM_FORMAT_XRGB8888: "XR24 little-endian (0x34325258)" DRM_FORMAT_YUYV: "YUYV little-endian (0x56595559)" DRM_FORMAT_RGB565|DRM_FORMAT_BIG_ENDIAN: "RG16 big-endian (0xb6314752)" Unprintable characters: "D??? big-endian (0xff7f0244)" Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/drm_crtc.c | 29 +++++++++++++++++++++++++++-- include/drm/drm_crtc.h | 1 + 2 files changed, 28 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index e7e9242..079996a 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -29,6 +29,7 @@ * Dave Airlie * Jesse Barnes */ +#include #include #include #include @@ -252,6 +253,28 @@ char *drm_get_connector_status_name(enum drm_connector_status status) } EXPORT_SYMBOL(drm_get_connector_status_name); +static char printable_char(int c) +{ + return isascii(c) && isprint(c) ? c : '?'; +} + +char *drm_get_format_name(uint32_t format) +{ + static char buf[32]; + + snprintf(buf, sizeof(buf), + "%c%c%c%c %s-endian (0x%08x)", + printable_char(format & 0xff), + printable_char((format >> 8) & 0xff), + printable_char((format >> 16) & 0xff), + printable_char((format >> 24) & 0x7f), + format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", + format); + + return buf; +} +EXPORT_SYMBOL(drm_get_format_name); + /** * drm_mode_object_get - allocate a new modeset identifier * @dev: DRM device @@ -1834,7 +1857,8 @@ int drm_mode_setplane(struct drm_device *dev, void *data, if (fb->pixel_format == plane->format_types[i]) break; if (i == plane->format_count) { - DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); + DRM_DEBUG_KMS("Invalid pixel format %s\n", + drm_get_format_name(fb->pixel_format)); ret = -EINVAL; goto out; } @@ -2312,7 +2336,8 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) ret = format_check(r); if (ret) { - DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); + DRM_DEBUG_KMS("bad framebuffer format %s\n", + drm_get_format_name(r->pixel_format)); return ret; } diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index adb3f9b..2cbbfd4 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1094,5 +1094,6 @@ extern int drm_format_num_planes(uint32_t format); extern int drm_format_plane_cpp(uint32_t format, int plane); extern int drm_format_horz_chroma_subsampling(uint32_t format); extern int drm_format_vert_chroma_subsampling(uint32_t format); +extern char *drm_get_format_name(uint32_t format); #endif /* __DRM_CRTC_H__ */