From patchwork Wed Jan 14 03:04:26 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Ung X-Patchwork-Id: 5625471 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A4C36C058D for ; Wed, 14 Jan 2015 03:03:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7ECDB20221 for ; Wed, 14 Jan 2015 03:03:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2507520220 for ; Wed, 14 Jan 2015 03:03:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751175AbbANDDo (ORCPT ); Tue, 13 Jan 2015 22:03:44 -0500 Received: from hqemgate16.nvidia.com ([216.228.121.65]:6241 "EHLO hqemgate16.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751058AbbANDDo (ORCPT ); Tue, 13 Jan 2015 22:03:44 -0500 Received: from hqnvupgp07.nvidia.com (Not Verified[216.228.121.13]) by hqemgate16.nvidia.com id ; Tue, 13 Jan 2015 19:04:19 -0800 Received: from hqemhub03.nvidia.com ([172.20.12.94]) by hqnvupgp07.nvidia.com (PGP Universal service); Tue, 13 Jan 2015 18:55:31 -0800 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Tue, 13 Jan 2015 18:55:31 -0800 Received: from dung-P9X79.nvidia.com (172.20.144.16) by hqemhub03.nvidia.com (172.20.150.15) with Microsoft SMTP Server (TLS) id 8.3.342.0; Tue, 13 Jan 2015 19:03:43 -0800 From: David Ung To: , CC: , David Ung Subject: [PATCH V2 2/3] video: fbdev: Check Standard Timing against DMT Date: Tue, 13 Jan 2015 19:04:26 -0800 Message-ID: <1421204667-16669-2-git-send-email-davidu@nvidia.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1421204667-16669-1-git-send-email-davidu@nvidia.com> References: <1421204667-16669-1-git-send-email-davidu@nvidia.com> MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 Add the VESA Display Monitor Timing (DMT) table. During parsing of Standard Timings, it compare the 2 byte STD code with DMT to see what the VESA mode should be. If there is no entry in the vesa_modes table or no match found, it fallsback to the GTF timings. Signed-off-by: David Ung --- drivers/video/fbdev/core/fbmon.c | 76 +++++++++++++++++++---------------- drivers/video/fbdev/core/modedb.c | 84 +++++++++++++++++++++++++++++++++++++++ include/linux/fb.h | 10 +++++ 3 files changed, 136 insertions(+), 34 deletions(-) diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c index 5b0e313..0f234c1 100644 --- a/drivers/video/fbdev/core/fbmon.c +++ b/drivers/video/fbdev/core/fbmon.c @@ -498,44 +498,52 @@ static int get_est_timing(unsigned char *block, struct fb_videomode *mode) static int get_std_timing(unsigned char *block, struct fb_videomode *mode, int ver, int rev) { - int xres, yres = 0, refresh, ratio, i; - - xres = (block[0] + 31) * 8; - if (xres <= 256) - return 0; + int i; - ratio = (block[1] & 0xc0) >> 6; - switch (ratio) { - case 0: - /* in EDID 1.3 the meaning of 0 changed to 16:10 (prior 1:1) */ - if (ver < 1 || (ver == 1 && rev < 3)) - yres = xres; - else - yres = (xres * 10)/16; - break; - case 1: - yres = (xres * 3)/4; - break; - case 2: - yres = (xres * 4)/5; - break; - case 3: - yres = (xres * 9)/16; - break; + for (i = 0; i < DMT_SIZE; i++) { + u32 std_2byte_code = block[0] << 8 | block[1]; + if (std_2byte_code == dmt_modes[i].std_2byte_code) + break; } - refresh = (block[1] & 0x3f) + 60; - - DPRINTK(" %dx%d@%dHz\n", xres, yres, refresh); - for (i = 0; i < VESA_MODEDB_SIZE; i++) { - if (vesa_modes[i].xres == xres && - vesa_modes[i].yres == yres && - vesa_modes[i].refresh == refresh) { - *mode = vesa_modes[i]; - mode->flag |= FB_MODE_IS_STANDARD; - return 1; + + if (i < DMT_SIZE && dmt_modes[i].mode) { + /* DMT mode found */ + *mode = *dmt_modes[i].mode; + mode->flag |= FB_MODE_IS_STANDARD; + DPRINTK(" DMT id=%d\n", dmt_modes[i].dmt_id); + + } else { + int xres, yres = 0, refresh, ratio; + + xres = (block[0] + 31) * 8; + if (xres <= 256) + return 0; + + ratio = (block[1] & 0xc0) >> 6; + switch (ratio) { + case 0: + /* in EDID 1.3 the meaning of 0 changed to 16:10 (prior 1:1) */ + if (ver < 1 || (ver == 1 && rev < 3)) + yres = xres; + else + yres = (xres * 10)/16; + break; + case 1: + yres = (xres * 3)/4; + break; + case 2: + yres = (xres * 4)/5; + break; + case 3: + yres = (xres * 9)/16; + break; } + refresh = (block[1] & 0x3f) + 60; + DPRINTK(" %dx%d@%dHz\n", xres, yres, refresh); + + calc_mode_timings(xres, yres, refresh, mode); } - calc_mode_timings(xres, yres, refresh, mode); + return 1; } diff --git a/drivers/video/fbdev/core/modedb.c b/drivers/video/fbdev/core/modedb.c index 0b57c1df..858a97e 100644 --- a/drivers/video/fbdev/core/modedb.c +++ b/drivers/video/fbdev/core/modedb.c @@ -497,6 +497,90 @@ const struct fb_videomode vesa_modes[] = { FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, }; EXPORT_SYMBOL(vesa_modes); + +const struct dmt_videomode dmt_modes[DMT_SIZE] = { + { 0x01, 0x0000, 0x000000, &vesa_modes[0] }, + { 0x02, 0x3119, 0x000000, &vesa_modes[1] }, + { 0x03, 0x0000, 0x000000, &vesa_modes[2] }, + { 0x04, 0x3140, 0x000000, &vesa_modes[3] }, + { 0x05, 0x314c, 0x000000, &vesa_modes[4] }, + { 0x06, 0x314f, 0x000000, &vesa_modes[5] }, + { 0x07, 0x3159, 0x000000, &vesa_modes[6] }, + { 0x08, 0x0000, 0x000000, &vesa_modes[7] }, + { 0x09, 0x4540, 0x000000, &vesa_modes[8] }, + { 0x0a, 0x454c, 0x000000, &vesa_modes[9] }, + { 0x0b, 0x454f, 0x000000, &vesa_modes[10] }, + { 0x0c, 0x4559, 0x000000, &vesa_modes[11] }, + { 0x0d, 0x0000, 0x000000, 0 }, + { 0x0e, 0x0000, 0x000000, 0 }, + { 0x0f, 0x0000, 0x000000, &vesa_modes[12] }, + { 0x10, 0x6140, 0x000000, &vesa_modes[13] }, + { 0x11, 0x614a, 0x000000, &vesa_modes[14] }, + { 0x12, 0x614f, 0x000000, &vesa_modes[15] }, + { 0x13, 0x6159, 0x000000, &vesa_modes[16] }, + { 0x14, 0x0000, 0x000000, 0 }, + { 0x15, 0x714f, 0x000000, &vesa_modes[17] }, + { 0x16, 0x0000, 0x7f1c21, 0 }, + { 0x17, 0x0000, 0x7f1c28, 0 }, + { 0x18, 0x0000, 0x7f1c44, 0 }, + { 0x19, 0x0000, 0x7f1c62, 0 }, + { 0x1a, 0x0000, 0x000000, 0 }, + { 0x1b, 0x0000, 0x8f1821, 0 }, + { 0x1c, 0x8100, 0x8f1828, 0 }, + { 0x1d, 0x810f, 0x8f1844, 0 }, + { 0x1e, 0x8119, 0x8f1862, 0 }, + { 0x1f, 0x0000, 0x000000, 0 }, + { 0x20, 0x8140, 0x000000, &vesa_modes[18] }, + { 0x21, 0x8159, 0x000000, &vesa_modes[19] }, + { 0x22, 0x0000, 0x000000, 0 }, + { 0x23, 0x8180, 0x000000, &vesa_modes[20] }, + { 0x24, 0x818f, 0x000000, &vesa_modes[21] }, + { 0x25, 0x8199, 0x000000, &vesa_modes[22] }, + { 0x26, 0x0000, 0x000000, 0 }, + { 0x27, 0x0000, 0x000000, 0 }, + { 0x28, 0x0000, 0x000000, 0 }, + { 0x29, 0x0000, 0x0c2021, 0 }, + { 0x2a, 0x9040, 0x0c2028, 0 }, + { 0x2b, 0x904f, 0x0c2044, 0 }, + { 0x2c, 0x9059, 0x0c2062, 0 }, + { 0x2d, 0x0000, 0x000000, 0 }, + { 0x2e, 0x9500, 0xc11821, 0 }, + { 0x2f, 0x9500, 0xc11828, 0 }, + { 0x30, 0x950f, 0xc11844, 0 }, + { 0x31, 0x9519, 0xc11868, 0 }, + { 0x32, 0x0000, 0x000000, 0 }, + { 0x33, 0xa940, 0x000000, &vesa_modes[23] }, + { 0x34, 0xa945, 0x000000, &vesa_modes[24] }, + { 0x35, 0xa94a, 0x000000, &vesa_modes[25] }, + { 0x36, 0xa94f, 0x000000, &vesa_modes[26] }, + { 0x37, 0xa959, 0x000000, &vesa_modes[27] }, + { 0x38, 0x0000, 0x000000, 0 }, + { 0x39, 0x0000, 0x0c2821, 0 }, + { 0x3a, 0xb300, 0x0c2828, 0 }, + { 0x3b, 0xb30f, 0x0c2844, 0 }, + { 0x3c, 0xb319, 0x0c2868, 0 }, + { 0x3d, 0x0000, 0x000000, 0 }, + { 0x3e, 0xc140, 0x000000, &vesa_modes[28] }, + { 0x3f, 0xc14f, 0x000000, &vesa_modes[29] }, + { 0x40, 0x0000, 0x000000, 0 }, + { 0x41, 0xc940, 0x000000, &vesa_modes[30] }, + { 0x42, 0xc94f, 0x000000, &vesa_modes[31] }, + { 0x43, 0x0000, 0x000000, 0 }, + { 0x44, 0x0000, 0x572821, &vesa_modes[34] }, + { 0x45, 0xd100, 0x572828, &vesa_modes[35] }, + { 0x46, 0xd10f, 0x572844, &vesa_modes[36] }, + { 0x47, 0xd119, 0x572862, &vesa_modes[37] }, + { 0x48, 0x0000, 0x000000, 0 }, + { 0x49, 0xd140, 0x000000, &vesa_modes[32] }, + { 0x4a, 0xd14f, 0x000000, &vesa_modes[33] }, + { 0x4b, 0x0000, 0x000000, 0 }, + { 0x4c, 0x0000, 0x1f3821, &vesa_modes[38] }, + { 0x4d, 0x0000, 0x1f3828, &vesa_modes[39] }, + { 0x4e, 0x0000, 0x1f3844, &vesa_modes[40] }, + { 0x4f, 0x0000, 0x1f3862, &vesa_modes[41] }, + { 0x50, 0x0000, 0x000000, &vesa_modes[42] }, +}; +EXPORT_SYMBOL(dmt_modes); #endif /* CONFIG_FB_MODE_HELPERS */ /** diff --git a/include/linux/fb.h b/include/linux/fb.h index 882dbd1..043f328 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -727,6 +727,8 @@ extern int fb_videomode_from_videomode(const struct videomode *vm, /* drivers/video/modedb.c */ #define VESA_MODEDB_SIZE 43 +#define DMT_SIZE 0x50 + extern void fb_var_to_videomode(struct fb_videomode *mode, const struct fb_var_screeninfo *var); extern void fb_videomode_to_var(struct fb_var_screeninfo *var, @@ -777,9 +779,17 @@ struct fb_videomode { u32 flag; }; +struct dmt_videomode { + u32 dmt_id; + u32 std_2byte_code; + u32 cvt_3byte_code; + const struct fb_videomode *mode; +}; + extern const char *fb_mode_option; extern const struct fb_videomode vesa_modes[]; extern const struct fb_videomode cea_modes[64]; +extern const struct dmt_videomode dmt_modes[]; struct fb_modelist { struct list_head list;