From: Russell King <rmk+kernel@arm.linux.org.uk> To: alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org Cc: Fabio Estevam <fabio.estevam@freescale.com>, David Airlie <airlied@linux.ie>, Mark Brown <broonie@kernel.org>, Philipp Zabel <p.zabel@pengutronix.de>, Yakir Yang <ykk@rock-chips.com> Subject: [PATCH RFC v2 09/13] drm/edid: add function to help find SADs Date: Thu, 02 Apr 2015 10:22:01 +0100 [thread overview] Message-ID: <E1YdbK5-00085I-HB@rmk-PC.arm.linux.org.uk> (raw) In-Reply-To: <20150402092050.GH24899@n2100.arm.linux.org.uk> Add a function to find the start of the SADs in the ELD. This complements the helper to retrieve the SAD count. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- include/drm/drm_edid.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 87d85e81d3a7..c44ad513e0f7 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -346,6 +346,25 @@ static inline int drm_eld_mnl(const uint8_t *eld) } /** + * drm_eld_sad - Get ELD SAD structures. + * @eld: pointer to an eld memory structure with sad_count set + */ +static inline const uint8_t *drm_eld_sad(const uint8_t *eld) +{ + unsigned int ver, mnl; + + ver = (eld[DRM_ELD_VER] & DRM_ELD_VER_MASK) >> DRM_ELD_VER_SHIFT; + if (ver != 2 && ver != 31) + return NULL; + + mnl = drm_eld_mnl(eld); + if (mnl > 16) + return NULL; + + return eld + DRM_ELD_CEA_SAD(mnl, 0); +} + +/** * drm_eld_sad_count - Get ELD SAD count. * @eld: pointer to an eld memory structure with sad_count set */ -- 1.8.3.1
WARNING: multiple messages have this Message-ID (diff)
From: rmk+kernel@arm.linux.org.uk (Russell King) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH RFC v2 09/13] drm/edid: add function to help find SADs Date: Thu, 02 Apr 2015 10:22:01 +0100 [thread overview] Message-ID: <E1YdbK5-00085I-HB@rmk-PC.arm.linux.org.uk> (raw) In-Reply-To: <20150402092050.GH24899@n2100.arm.linux.org.uk> Add a function to find the start of the SADs in the ELD. This complements the helper to retrieve the SAD count. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- include/drm/drm_edid.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 87d85e81d3a7..c44ad513e0f7 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -346,6 +346,25 @@ static inline int drm_eld_mnl(const uint8_t *eld) } /** + * drm_eld_sad - Get ELD SAD structures. + * @eld: pointer to an eld memory structure with sad_count set + */ +static inline const uint8_t *drm_eld_sad(const uint8_t *eld) +{ + unsigned int ver, mnl; + + ver = (eld[DRM_ELD_VER] & DRM_ELD_VER_MASK) >> DRM_ELD_VER_SHIFT; + if (ver != 2 && ver != 31) + return NULL; + + mnl = drm_eld_mnl(eld); + if (mnl > 16) + return NULL; + + return eld + DRM_ELD_CEA_SAD(mnl, 0); +} + +/** * drm_eld_sad_count - Get ELD SAD count. * @eld: pointer to an eld memory structure with sad_count set */ -- 1.8.3.1
next prev parent reply other threads:[~2015-04-02 9:22 UTC|newest] Thread overview: 148+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-04-02 9:20 [RFC v2 0/13] dw_hdmi cleanups, audio preparation, helpers and ahb audio support Russell King - ARM Linux 2015-04-02 9:20 ` Russell King - ARM Linux 2015-04-02 9:21 ` [PATCH RFC v2 01/13] drm: imx/dw_hdmi: move phy comments Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 02/13] drm: bridge/dw_hdmi: clean up phy configuration Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 03/13] drm: bridge/dw_hdmi: clean up hdmi_set_clk_regenerator() Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 04/13] drm: bridge/dw_hdmi: use drm_hdmi_avi_infoframe_from_display_mode() Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 05/13] drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 06/13] drm: bridge/dw_hdmi: remove mhsyncpolarity/mvsyncpolarity/minterlaced Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 07/13] drm: bridge/dw_hdmi: introduce interface to setting sample rate Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:21 ` [PATCH RFC v2 08/13] drm: bridge/dw_hdmi: introduce interfaces to enable and disable audio Russell King 2015-04-02 9:21 ` Russell King 2015-04-02 9:22 ` Russell King [this message] 2015-04-02 9:22 ` [PATCH RFC v2 09/13] drm/edid: add function to help find SADs Russell King 2015-04-02 9:22 ` [PATCH RFC v2 10/13] sound/core: add DRM ELD helper Russell King 2015-04-02 9:22 ` Russell King 2015-04-05 15:57 ` Takashi Iwai 2015-04-05 15:57 ` Takashi Iwai 2015-04-05 16:20 ` Russell King - ARM Linux 2015-04-05 16:20 ` Russell King - ARM Linux 2015-04-05 16:46 ` Takashi Iwai 2015-04-05 16:46 ` Takashi Iwai 2015-04-05 17:26 ` Russell King - ARM Linux 2015-04-05 17:26 ` Russell King - ARM Linux 2015-05-06 17:02 ` Anssi Hannula 2015-05-06 17:02 ` Anssi Hannula 2015-05-07 10:41 ` Russell King - ARM Linux 2015-05-07 10:41 ` Russell King - ARM Linux 2015-05-07 11:11 ` Lars-Peter Clausen 2015-05-07 11:11 ` [alsa-devel] " Lars-Peter Clausen 2015-05-08 10:56 ` Jyri Sarha 2015-05-08 10:56 ` Jyri Sarha 2015-05-08 11:42 ` Russell King - ARM Linux 2015-05-08 11:42 ` Russell King - ARM Linux 2015-05-05 22:35 ` Mark Brown 2015-05-05 22:35 ` Mark Brown 2015-05-06 8:58 ` Liam Girdwood 2015-05-06 8:58 ` [alsa-devel] " Liam Girdwood 2015-05-08 13:16 ` Jyri Sarha 2015-05-08 13:16 ` Jyri Sarha 2015-05-08 13:27 ` Russell King - ARM Linux 2015-05-08 13:27 ` Russell King - ARM Linux 2015-05-08 13:37 ` Jyri Sarha 2015-05-08 13:37 ` [alsa-devel] " Jyri Sarha 2015-04-02 9:22 ` [PATCH RFC v2 11/13] sound/core: add IEC958 channel status helper Russell King 2015-04-02 9:22 ` Russell King 2015-04-02 9:22 ` [PATCH RFC v2 12/13] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King 2015-04-02 9:22 ` Russell King 2015-04-02 9:22 ` [PATCH RFC v2 13/13] drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver Russell King 2015-04-02 9:22 ` Russell King 2015-05-09 10:25 ` [PATCH v3 0/13] dw_hdmi cleanups, audio preparation, helpers and ahb audio support Russell King - ARM Linux 2015-05-09 10:25 ` Russell King - ARM Linux 2015-05-09 10:25 ` [PATCH 01/13] drm: imx/dw_hdmi: move phy comments Russell King 2015-05-09 10:25 ` Russell King 2015-05-09 10:26 ` [PATCH 02/13] drm: bridge/dw_hdmi: clean up phy configuration Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 15:19 ` Yakir 2015-05-22 15:19 ` Yakir 2015-05-09 10:26 ` [PATCH 03/13] drm: bridge/dw_hdmi: clean up hdmi_set_clk_regenerator() Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 15:22 ` Yakir 2015-05-22 15:22 ` Yakir 2015-05-09 10:26 ` [PATCH 04/13] drm: bridge/dw_hdmi: use drm_hdmi_avi_infoframe_from_display_mode() Russell King 2015-05-09 10:26 ` Russell King 2015-05-09 10:26 ` [PATCH 05/13] drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little Russell King 2015-05-09 10:26 ` Russell King 2015-05-09 10:26 ` [PATCH 06/13] drm: bridge/dw_hdmi: remove mhsyncpolarity/mvsyncpolarity/minterlaced Russell King 2015-05-09 10:26 ` Russell King 2015-05-09 10:26 ` [PATCH 07/13] drm: bridge/dw_hdmi: introduce interface to setting sample rate Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 15:26 ` Yakir 2015-05-22 15:26 ` Yakir 2015-05-09 10:26 ` [PATCH 08/13] drm: bridge/dw_hdmi: introduce interfaces to enable and disable audio Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 15:28 ` Yakir 2015-05-22 15:28 ` Yakir 2015-05-09 10:26 ` [PATCH 09/13] drm/edid: add function to help find SADs Russell King 2015-05-09 10:26 ` Russell King 2015-05-09 10:26 ` [PATCH 10/13] sound/core: add DRM ELD helper Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 12:20 ` [alsa-devel] " Mark Brown 2015-05-22 12:20 ` Mark Brown 2015-05-22 13:15 ` Russell King - ARM Linux 2015-05-22 13:15 ` Russell King - ARM Linux 2015-05-22 13:30 ` Takashi Iwai 2015-05-22 13:30 ` Takashi Iwai 2015-05-22 13:53 ` Russell King - ARM Linux 2015-05-22 13:53 ` Russell King - ARM Linux 2015-05-22 13:54 ` Takashi Iwai 2015-05-22 13:54 ` Takashi Iwai 2015-05-22 14:00 ` Russell King - ARM Linux 2015-05-22 14:00 ` Russell King - ARM Linux 2015-05-22 14:02 ` Takashi Iwai 2015-05-22 14:02 ` Takashi Iwai 2015-05-22 14:05 ` Takashi Iwai 2015-05-22 14:05 ` Takashi Iwai 2015-05-22 16:12 ` Russell King - ARM Linux 2015-05-22 16:12 ` Russell King - ARM Linux 2015-05-09 10:26 ` [PATCH 11/13] sound/core: add IEC958 channel status helper Russell King 2015-05-09 10:26 ` Russell King 2015-05-22 12:40 ` Mark Brown 2015-05-22 12:40 ` Mark Brown 2015-05-09 10:26 ` [PATCH 12/13] drm: bridge/dw_hdmi-ahb-audio: add audio driver Russell King 2015-05-09 10:26 ` Russell King 2015-05-09 16:49 ` [alsa-devel] " Anssi Hannula 2015-05-09 16:49 ` Anssi Hannula 2015-05-09 16:55 ` Russell King - ARM Linux 2015-05-09 16:55 ` Russell King - ARM Linux 2015-05-09 17:07 ` Anssi Hannula 2015-05-09 17:07 ` Anssi Hannula 2015-05-09 17:40 ` Russell King - ARM Linux 2015-05-09 17:40 ` Russell King - ARM Linux 2015-05-09 17:53 ` Russell King - ARM Linux 2015-05-09 17:53 ` Russell King - ARM Linux 2015-05-09 17:55 ` Anssi Hannula 2015-05-09 17:55 ` Anssi Hannula 2015-05-09 18:11 ` Russell King - ARM Linux 2015-05-09 18:11 ` Russell King - ARM Linux 2015-05-10 18:59 ` Anssi Hannula 2015-05-10 18:59 ` Anssi Hannula 2015-05-10 19:33 ` Russell King - ARM Linux 2015-05-10 19:33 ` Russell King - ARM Linux 2015-05-10 20:47 ` Anssi Hannula 2015-05-10 20:47 ` Anssi Hannula 2015-05-11 15:58 ` Mark Brown 2015-05-11 15:58 ` [alsa-devel] " Mark Brown 2015-05-09 10:26 ` [PATCH 13/13] drm: bridge/dw_hdmi-ahb-audio: parse ELD from HDMI driver Russell King 2015-05-09 10:26 ` Russell King 2015-05-27 10:43 ` Daniel Vetter 2015-05-27 10:43 ` Daniel Vetter 2015-05-27 11:43 ` Mark Brown 2015-05-27 11:43 ` Mark Brown 2015-05-27 17:31 ` Russell King - ARM Linux 2015-05-27 17:31 ` Russell King - ARM Linux 2015-05-27 21:29 ` Daniel Vetter 2015-05-27 21:29 ` Daniel Vetter 2015-05-27 21:44 ` Russell King - ARM Linux 2015-05-27 21:44 ` Russell King - ARM Linux 2015-05-28 6:43 ` Daniel Vetter 2015-05-28 6:43 ` Daniel Vetter 2015-05-28 4:56 ` [alsa-devel] " Takashi Iwai 2015-05-28 4:56 ` Takashi Iwai
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