From patchwork Tue Sep 17 07:06:36 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: archit taneja X-Patchwork-Id: 2901211 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3BD7E9F1C0 for ; Tue, 17 Sep 2013 07:08:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 234F920348 for ; Tue, 17 Sep 2013 07:08:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E084320334 for ; Tue, 17 Sep 2013 07:08:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752300Ab3IQHID (ORCPT ); Tue, 17 Sep 2013 03:08:03 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:33469 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752283Ab3IQHIA (ORCPT ); Tue, 17 Sep 2013 03:08:00 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r8H780Ce029751; Tue, 17 Sep 2013 02:08:00 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id r8H780Y8024512; Tue, 17 Sep 2013 02:08:00 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.2.342.3; Tue, 17 Sep 2013 02:08:00 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id r8H77xks028631; Tue, 17 Sep 2013 02:07:59 -0500 Received: from localhost (a0393947pc.apr.dhcp.ti.com [172.24.145.166]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r8H77wt25097; Tue, 17 Sep 2013 02:07:58 -0500 (CDT) From: Archit Taneja To: CC: , , Archit Taneja Subject: [PATCH 10/11] omapdss: HDMI: move common functions to a separate file Date: Tue, 17 Sep 2013 12:36:36 +0530 Message-ID: <1379401597-27222-11-git-send-email-archit@ti.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1379401597-27222-1-git-send-email-archit@ti.com> References: <1379401597-27222-1-git-send-email-archit@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The OMAP4 HDMI encoder driver(hdmi4.c) contains timings tables, and helper functions which can be used as is by the OMAP5/DRA7x encoder driver. Move these to hdmi_common.c so that it's not replicated in the future. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/Makefile | 4 +- drivers/video/omap2/dss/hdmi4.c | 438 +--------------------------------- drivers/video/omap2/dss/hdmi4_core.c | 4 +- drivers/video/omap2/dss/hdmi4_core.h | 2 +- drivers/video/omap2/dss/hdmi_common.c | 423 ++++++++++++++++++++++++++++++++ drivers/video/omap2/dss/ti_hdmi.h | 11 +- 6 files changed, 447 insertions(+), 435 deletions(-) create mode 100644 drivers/video/omap2/dss/hdmi_common.c diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile index f87ca32..d3aa91b 100644 --- a/drivers/video/omap2/dss/Makefile +++ b/drivers/video/omap2/dss/Makefile @@ -10,6 +10,6 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o -omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi4.o hdmi_wp.o hdmi_pll.o hdmi_phy.o \ - hdmi4_core.o +omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi4.o hdmi_common.o hdmi_wp.o hdmi_pll.o \ + hdmi_phy.o hdmi4_core.o ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c index ab43069..e140096 100644 --- a/drivers/video/omap2/dss/hdmi4.c +++ b/drivers/video/omap2/dss/hdmi4.c @@ -57,237 +57,6 @@ static struct { struct omap_dss_device output; } hdmi; -/* - * Logic for the below structure : - * user enters the CEA or VESA timings by specifying the HDMI/DVI code. - * There is a correspondence between CEA/VESA timing and code, please - * refer to section 6.3 in HDMI 1.3 specification for timing code. - * - * In the below structure, cea_vesa_timings corresponds to all OMAP4 - * supported CEA and VESA timing values.code_cea corresponds to the CEA - * code, It is used to get the timing from cea_vesa_timing array.Similarly - * with code_vesa. Code_index is used for back mapping, that is once EDID - * is read from the TV, EDID is parsed to find the timing values and then - * map it to corresponding CEA or VESA index. - */ - -static const struct hdmi_config cea_timings[] = { - { - { 640, 480, 25200, 96, 16, 48, 2, 10, 33, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 1, HDMI_HDMI }, - }, - { - { 720, 480, 27027, 62, 16, 60, 6, 9, 30, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 2, HDMI_HDMI }, - }, - { - { 1280, 720, 74250, 40, 110, 220, 5, 5, 20, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 4, HDMI_HDMI }, - }, - { - { 1920, 540, 74250, 44, 88, 148, 5, 2, 15, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - true, }, - { 5, HDMI_HDMI }, - }, - { - { 1440, 240, 27027, 124, 38, 114, 3, 4, 15, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - true, }, - { 6, HDMI_HDMI }, - }, - { - { 1920, 1080, 148500, 44, 88, 148, 5, 4, 36, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 16, HDMI_HDMI }, - }, - { - { 720, 576, 27000, 64, 12, 68, 5, 5, 39, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 17, HDMI_HDMI }, - }, - { - { 1280, 720, 74250, 40, 440, 220, 5, 5, 20, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 19, HDMI_HDMI }, - }, - { - { 1920, 540, 74250, 44, 528, 148, 5, 2, 15, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - true, }, - { 20, HDMI_HDMI }, - }, - { - { 1440, 288, 27000, 126, 24, 138, 3, 2, 19, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - true, }, - { 21, HDMI_HDMI }, - }, - { - { 1440, 576, 54000, 128, 24, 136, 5, 5, 39, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 29, HDMI_HDMI }, - }, - { - { 1920, 1080, 148500, 44, 528, 148, 5, 4, 36, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 31, HDMI_HDMI }, - }, - { - { 1920, 1080, 74250, 44, 638, 148, 5, 4, 36, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 32, HDMI_HDMI }, - }, - { - { 2880, 480, 108108, 248, 64, 240, 6, 9, 30, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 35, HDMI_HDMI }, - }, - { - { 2880, 576, 108000, 256, 48, 272, 5, 5, 39, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 37, HDMI_HDMI }, - }, -}; - -static const struct hdmi_config vesa_timings[] = { -/* VESA From Here */ - { - { 640, 480, 25175, 96, 16, 48, 2, 11, 31, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 4, HDMI_DVI }, - }, - { - { 800, 600, 40000, 128, 40, 88, 4, 1, 23, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 9, HDMI_DVI }, - }, - { - { 848, 480, 33750, 112, 16, 112, 8, 6, 23, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0xE, HDMI_DVI }, - }, - { - { 1280, 768, 79500, 128, 64, 192, 7, 3, 20, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x17, HDMI_DVI }, - }, - { - { 1280, 800, 83500, 128, 72, 200, 6, 3, 22, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x1C, HDMI_DVI }, - }, - { - { 1360, 768, 85500, 112, 64, 256, 6, 3, 18, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x27, HDMI_DVI }, - }, - { - { 1280, 960, 108000, 112, 96, 312, 3, 1, 36, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x20, HDMI_DVI }, - }, - { - { 1280, 1024, 108000, 112, 48, 248, 3, 1, 38, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x23, HDMI_DVI }, - }, - { - { 1024, 768, 65000, 136, 24, 160, 6, 3, 29, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x10, HDMI_DVI }, - }, - { - { 1400, 1050, 121750, 144, 88, 232, 4, 3, 32, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x2A, HDMI_DVI }, - }, - { - { 1440, 900, 106500, 152, 80, 232, 6, 3, 25, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x2F, HDMI_DVI }, - }, - { - { 1680, 1050, 146250, 176 , 104, 280, 6, 3, 30, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW, - false, }, - { 0x3A, HDMI_DVI }, - }, - { - { 1366, 768, 85500, 143, 70, 213, 3, 3, 24, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x51, HDMI_DVI }, - }, - { - { 1920, 1080, 148500, 44, 148, 80, 5, 4, 36, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x52, HDMI_DVI }, - }, - { - { 1280, 768, 68250, 32, 48, 80, 7, 3, 12, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x16, HDMI_DVI }, - }, - { - { 1400, 1050, 101000, 32, 48, 80, 4, 3, 23, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x29, HDMI_DVI }, - }, - { - { 1680, 1050, 119000, 32, 48, 80, 6, 3, 21, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x39, HDMI_DVI }, - }, - { - { 1280, 800, 79500, 32, 48, 80, 6, 3, 14, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x1B, HDMI_DVI }, - }, - { - { 1280, 720, 74250, 40, 110, 220, 5, 5, 20, - OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x55, HDMI_DVI }, - }, - { - { 1920, 1200, 154000, 32, 48, 80, 6, 3, 26, - OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH, - false, }, - { 0x44, HDMI_DVI }, - }, -}; - static int hdmi_runtime_get(void) { int r; @@ -335,86 +104,6 @@ static int hdmi_init_regulator(void) return 0; } -static const struct hdmi_config *hdmi_find_timing( - const struct hdmi_config *timings_arr, - int len) -{ - int i; - - for (i = 0; i < len; i++) { - if (timings_arr[i].cm.code == hdmi.cfg.cm.code) - return &timings_arr[i]; - } - return NULL; -} - -static const struct hdmi_config *hdmi_get_timings(void) -{ - const struct hdmi_config *arr; - int len; - - if (hdmi.cfg.cm.mode == HDMI_DVI) { - arr = vesa_timings; - len = ARRAY_SIZE(vesa_timings); - } else { - arr = cea_timings; - len = ARRAY_SIZE(cea_timings); - } - - return hdmi_find_timing(arr, len); -} - -static bool hdmi_timings_compare(struct omap_video_timings *timing1, - const struct omap_video_timings *timing2) -{ - int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync; - - if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) == - DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) && - (timing2->x_res == timing1->x_res) && - (timing2->y_res == timing1->y_res)) { - - timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp; - timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp; - timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp; - timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp; - - DSSDBG("timing1_hsync = %d timing1_vsync = %d"\ - "timing2_hsync = %d timing2_vsync = %d\n", - timing1_hsync, timing1_vsync, - timing2_hsync, timing2_vsync); - - if ((timing1_hsync == timing2_hsync) && - (timing1_vsync == timing2_vsync)) { - return true; - } - } - return false; -} - -static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing) -{ - int i; - struct hdmi_cm cm = {-1}; - DSSDBG("hdmi_get_code\n"); - - for (i = 0; i < ARRAY_SIZE(cea_timings); i++) { - if (hdmi_timings_compare(timing, &cea_timings[i].timings)) { - cm = cea_timings[i].cm; - goto end; - } - } - for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) { - if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) { - cm = vesa_timings[i].cm; - goto end; - } - } - -end: return cm; - -} - static int hdmi_power_on_core(struct omap_dss_device *dssdev) { int r; @@ -550,7 +239,7 @@ static void hdmi_display_set_timing(struct omap_dss_device *dssdev, cm = hdmi_get_code(timings); hdmi.cfg.cm = cm; - t = hdmi_get_timings(); + t = hdmi_get_timings(cm.mode, cm.code); if (t != NULL) { hdmi.cfg = *t; @@ -564,10 +253,11 @@ static void hdmi_display_get_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { const struct hdmi_config *cfg; + struct hdmi_cm cm = hdmi.cfg.cm; - cfg = hdmi_get_timings(); + cfg = hdmi_get_timings(cm.mode, cm.code); if (cfg == NULL) - cfg = &vesa_timings[0]; + cfg = hdmi_default_timing(); memcpy(timings, &cfg->timings, sizeof(cfg->timings)); } @@ -695,117 +385,6 @@ static int hdmi_get_clocks(struct platform_device *pdev) return 0; } -#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO) -int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts) -{ - u32 deep_color; - bool deep_color_correct = false; - u32 pclk = hdmi.cfg.timings.pixel_clock; - - if (n == NULL || cts == NULL) - return -EINVAL; - - /* TODO: When implemented, query deep color mode here. */ - deep_color = 100; - - /* - * When using deep color, the default N value (as in the HDMI - * specification) yields to an non-integer CTS. Hence, we - * modify it while keeping the restrictions described in - * section 7.2.1 of the HDMI 1.4a specification. - */ - switch (sample_freq) { - case 32000: - case 48000: - case 96000: - case 192000: - if (deep_color == 125) - if (pclk == 27027 || pclk == 74250) - deep_color_correct = true; - if (deep_color == 150) - if (pclk == 27027) - deep_color_correct = true; - break; - case 44100: - case 88200: - case 176400: - if (deep_color == 125) - if (pclk == 27027) - deep_color_correct = true; - break; - default: - return -EINVAL; - } - - if (deep_color_correct) { - switch (sample_freq) { - case 32000: - *n = 8192; - break; - case 44100: - *n = 12544; - break; - case 48000: - *n = 8192; - break; - case 88200: - *n = 25088; - break; - case 96000: - *n = 16384; - break; - case 176400: - *n = 50176; - break; - case 192000: - *n = 32768; - break; - default: - return -EINVAL; - } - } else { - switch (sample_freq) { - case 32000: - *n = 4096; - break; - case 44100: - *n = 6272; - break; - case 48000: - *n = 6144; - break; - case 88200: - *n = 12544; - break; - case 96000: - *n = 12288; - break; - case 176400: - *n = 25088; - break; - case 192000: - *n = 24576; - break; - default: - return -EINVAL; - } - } - /* Calculate CTS. See HDMI 1.3a or 1.4a specifications */ - *cts = pclk * (*n / 128) * deep_color / (sample_freq / 10); - - return 0; -} - -static bool hdmi_mode_has_audio(void) -{ - if (hdmi.cfg.cm.mode == HDMI_HDMI) - return true; - else - return false; -} - -#endif - static int hdmi_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { @@ -878,7 +457,7 @@ static int hdmi_audio_enable(struct omap_dss_device *dssdev) mutex_lock(&hdmi.lock); - if (!hdmi_mode_has_audio()) { + if (!hdmi_mode_has_audio(hdmi.cfg.cm.mode)) { r = -EPERM; goto err; } @@ -916,7 +495,7 @@ static bool hdmi_audio_supported(struct omap_dss_device *dssdev) mutex_lock(&hdmi.lock); - r = hdmi_mode_has_audio(); + r = hdmi_mode_has_audio(hdmi.cfg.cm.mode); mutex_unlock(&hdmi.lock); return r; @@ -926,15 +505,16 @@ static int hdmi_audio_config(struct omap_dss_device *dssdev, struct omap_dss_audio *audio) { int r; + u32 pclk = hdmi.cfg.timings.pixel_clock; mutex_lock(&hdmi.lock); - if (!hdmi_mode_has_audio()) { + if (!hdmi_mode_has_audio(hdmi.cfg.cm.mode)) { r = -EPERM; goto err; } - r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio); + r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio, pclk); if (r) goto err; diff --git a/drivers/video/omap2/dss/hdmi4_core.c b/drivers/video/omap2/dss/hdmi4_core.c index 448e632..c7f5ec4 100644 --- a/drivers/video/omap2/dss/hdmi4_core.c +++ b/drivers/video/omap2/dss/hdmi4_core.c @@ -789,7 +789,7 @@ static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core, } int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp, - struct omap_dss_audio *audio) + struct omap_dss_audio *audio, u32 pclk) { struct hdmi_audio_format audio_format; struct hdmi_audio_dma audio_dma; @@ -856,7 +856,7 @@ int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp, return -EINVAL; } - err = hdmi_compute_acr(fs_nr, &n, &cts); + err = hdmi_compute_acr(pclk, fs_nr, &n, &cts); /* Audio clock regeneration settings */ acore.n = n; diff --git a/drivers/video/omap2/dss/hdmi4_core.h b/drivers/video/omap2/dss/hdmi4_core.h index 78319ff..52d9c95 100644 --- a/drivers/video/omap2/dss/hdmi4_core.h +++ b/drivers/video/omap2/dss/hdmi4_core.h @@ -271,7 +271,7 @@ int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core); int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp); void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp); int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp, - struct omap_dss_audio *audio); + struct omap_dss_audio *audio, u32 pclk); int hdmi4_audio_get_dma_port(u32 *offset, u32 *size); #endif diff --git a/drivers/video/omap2/dss/hdmi_common.c b/drivers/video/omap2/dss/hdmi_common.c new file mode 100644 index 0000000..86f0505 --- /dev/null +++ b/drivers/video/omap2/dss/hdmi_common.c @@ -0,0 +1,423 @@ + +/* + * Logic for the below structure : + * user enters the CEA or VESA timings by specifying the HDMI/DVI code. + * There is a correspondence between CEA/VESA timing and code, please + * refer to section 6.3 in HDMI 1.3 specification for timing code. + * + * In the below structure, cea_vesa_timings corresponds to all OMAP4 + * supported CEA and VESA timing values.code_cea corresponds to the CEA + * code, It is used to get the timing from cea_vesa_timing array.Similarly + * with code_vesa. Code_index is used for back mapping, that is once EDID + * is read from the TV, EDID is parsed to find the timing values and then + * map it to corresponding CEA or VESA index. + */ + +#include +#include +#include