From patchwork Tue Nov 10 21:50:36 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: santiago.nunez@ridgerun.com X-Patchwork-Id: 59169 Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nAALrTEg023241 for ; Tue, 10 Nov 2009 21:53:30 GMT Received: from dlep33.itg.ti.com ([157.170.170.112]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id nAALpgVG007549 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Nov 2009 15:51:42 -0600 Received: from linux.omap.com (localhost [127.0.0.1]) by dlep33.itg.ti.com (8.13.7/8.13.7) with ESMTP id nAALpfTM017628; Tue, 10 Nov 2009 15:51:41 -0600 (CST) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 8CBF98062A; Tue, 10 Nov 2009 15:51:40 -0600 (CST) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp53.itg.ti.com (dflp53.itg.ti.com [128.247.5.6]) by linux.omap.com (Postfix) with ESMTP id 315E080626 for ; Tue, 10 Nov 2009 15:51:39 -0600 (CST) Received: from medina.ext.ti.com (localhost [127.0.0.1]) by dflp53.itg.ti.com (8.13.8/8.13.8) with ESMTP id nAALpc3m007648 for ; Tue, 10 Nov 2009 15:51:38 -0600 (CST) Received: from mail146-va3-R.bigfish.com (mail-va3.bigfish.com [216.32.180.113]) by medina.ext.ti.com (8.13.7/8.13.7) with ESMTP id nAALpc21021127 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL) for ; Tue, 10 Nov 2009 15:51:38 -0600 Received: from mail146-va3 (localhost.localdomain [127.0.0.1]) by mail146-va3-R.bigfish.com (Postfix) with ESMTP id EBA881C7037E for ; Tue, 10 Nov 2009 21:51:37 +0000 (UTC) X-SpamScore: -5 X-BigFish: vps-5(zz9370J655Nc8kzz1202hzzz2fh6bh67h) X-Spam-TCS-SCL: 6:0 X-MS-Exchange-Organization-Antispam-Report: OrigIP: 74.208.67.6; Service: EHS Received: from mail146-va3 (localhost.localdomain [127.0.0.1]) by mail146-va3 (MessageSwitch) id 1257889887156797_14079; Tue, 10 Nov 2009 21:51:27 +0000 (UTC) Received: from VA3EHSMHS026.bigfish.com (unknown [10.7.14.249]) by mail146-va3.bigfish.com (Postfix) with ESMTP id 06A23E9813C; Tue, 10 Nov 2009 21:50:39 +0000 (UTC) Received: from mail.navvo.net (74.208.67.6) by VA3EHSMHS026.bigfish.com (10.7.99.36) with Microsoft SMTP Server (TLS) id 14.0.482.32; Tue, 10 Nov 2009 21:50:36 +0000 Received: from [200.122.155.113] (helo=localhost.localdomain) by mail.navvo.net with esmtpa (Exim 4.63) (envelope-from ) id 1N7ybg-0001NV-H2; Tue, 10 Nov 2009 15:50:36 -0600 From: To: davinci-linux-open-source@linux.davincidsp.com Date: Tue, 10 Nov 2009 15:50:36 -0600 Message-ID: <1257889836-19208-1-git-send-email-santiago.nunez@ridgerun.com> X-Mailer: git-send-email 1.6.0.4 X-SA-Exim-Connect-IP: 200.122.155.113 X-SA-Exim-Mail-From: santiago.nunez@ridgerun.com X-Spam-Checker-Version: SpamAssassin 3.1.7-deb (2006-10-05) on mail.navvo.net X-Spam-Level: X-Spam-Status: No, score=-3.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, NO_REAL_NAME,UPPERCASE_25_50 autolearn=ham version=3.1.7-deb X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on mail.navvo.net) MIME-Version: 1.0 X-Reverse-DNS: mail.navvo.net Cc: Santiago Nunez-Corrales , todd.fischer@ridgerun.com, linux-media@vger.kernel.org Subject: [PATCH 3/4 v7] TVP7002 driver for DM365 X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.4 Precedence: list List-Id: davinci-linux-open-source.linux.davincidsp.com List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: davinci-linux-open-source-bounces@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com diff --git a/drivers/media/video/tvp7002.c b/drivers/media/video/tvp7002.c new file mode 100644 index 0000000..a43cb84 --- /dev/null +++ b/drivers/media/video/tvp7002.c @@ -0,0 +1,1475 @@ +/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics + * Digitizer with Horizontal PLL registers + * + * Copyright (C) 2009 Texas Instruments Inc + * Author: Santiago Nunez-Corrales + * + * This code is partially based upon the TVP5150 driver + * written by Mauro Carvalho Chehab (mchehab@infradead.org), + * the TVP514x driver written by Vaibhav Hiremath + * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by + * Muralidharan Karicheri and Snehaprabha Narnakaje (TI). + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include +#include +#include +#include +#include +#include +#include "tvp7002_reg.h" + +MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); +MODULE_AUTHOR("Santiago Nunez-Corrales "); +MODULE_LICENSE("GPL"); + +/* Module Name */ +#define TVP7002_MODULE_NAME "tvp7002" + +/* I2C retry attempts */ +#define I2C_RETRY_COUNT (5) + +/* End of registers */ +#define TVP7002_EOR 0x5c + +/* Read write definition for registers */ +#define TVP7002_READ 0 +#define TVP7002_WRITE 1 +#define TVP7002_RESERVED 2 + +/* Total frame lines information */ +#define TVP7002_LINES_720 0x2EE +#define TVP7002_LINES_1080 0x465 + +/* Clocks per line assuming 6.5 MHz internal clock +- 6% */ +#define TVP7002_CPL_1080P_60_LOWER 90 +#define TVP7002_CPL_1080P_60_UPPER 102 +#define TVP7002_CPL_1080_60_LOWER 181 +#define TVP7002_CPL_1080_60_UPPER 205 +#define TVP7002_CPL_1080_50_LOWER 217 +#define TVP7002_CPL_1080_50_UPPER 245 +#define TVP7002_CPL_720P_50_LOWER 163 +#define TVP7002_CPL_720P_50_UPPER 183 +#define TVP7002_CPL_720P_60_LOWER 135 +#define TVP7002_CPL_720P_60_UPPER 153 + +#define INTERLACED_VIDEO 0 +#define PROGRESSIVE_VIDEO 1 + +/* Indexes for digital video presets */ +#define INDEX_720P60 0 +#define INDEX_1080I60 1 +#define INDEX_1080I50 2 +#define INDEX_720P50 3 +#define INDEX_1080P60 4 +#define INDEX_480P59_94 5 +#define INDEX_576P50 6 + +/* Number of pixels and number of lines per frame for different standards */ +#define NTSC_NUM_ACTIVE_PIXELS (720) +#define NTSC_NUM_ACTIVE_LINES (480) +#define PAL_NUM_ACTIVE_PIXELS (720) +#define PAL_NUM_ACTIVE_LINES (576) +#define HD_720_NUM_ACTIVE_PIXELS (1280) +#define HD_720_NUM_ACTIVE_LINES (720) +#define HD_1080_NUM_ACTIVE_PIXELS (1920) +#define HD_1080_NUM_ACTIVE_LINES (1080) + +/* Interlaced vs progressive mask and shift */ +#define TVP7002_IP_SHIFT 5 +#define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) + +/* Shift for CPL and LPF registers */ +#define TVP7002_CL_SHIFT 8 +#define TVP7002_CL_MASK 0x0f + +/* Debug functions */ +static int debug; +module_param(debug, bool, 0644); +MODULE_PARM_DESC(debug, "Debug level (0-2)"); + +/* Structure for register values */ +struct i2c_reg_value { + u8 reg; + u8 value; + u8 type; +}; + +/* + * Register default values (according to tvp7002 datasheet) + * In the case of read-only registers, the value (0xff) is + * never written. R/W functionality is controlled by the + * writable bit in the register struct definition. + */ +static const struct i2c_reg_value tvp7002_init_default[] = { + { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, + { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, + { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, + { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, + { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, + { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, + { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, + { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, + { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, + { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, + { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, + { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, + { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, + { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, + { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, + { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, + { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, + { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, + { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, + { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, + { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, + { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, + { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, + { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, + { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, + { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, + { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, + { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, + { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, + { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, + { 0x29, 0x08, TVP7002_RESERVED }, + { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, + /* PWR_CTL is controlled only by the probe and reset functions */ + { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, + { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, + { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, + { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, + { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, + { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { 0x32, 0x18, TVP7002_RESERVED }, + { 0x33, 0x60, TVP7002_RESERVED }, + { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, + { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, + { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, + { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, + { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, + { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, + { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, + { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, + { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, + { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, + { 0x3e, 0x60, TVP7002_RESERVED }, + { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, + { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, + { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, + { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, + { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, + { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, + { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, + { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, + { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, + { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, + { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, + { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, + { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, + { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, + { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, + { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, + { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, + { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, + { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, + /* This signals end of register values */ + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 480P */ +static const struct i2c_reg_value tvp7002_parms_480P[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0a, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 576P */ +static const struct i2c_reg_value tvp7002_parms_576P[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 1080I60 */ +static const struct i2c_reg_value tvp7002_parms_1080I60[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 1080P60 */ +static const struct i2c_reg_value tvp7002_parms_1080P60[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 1080I50 */ +static const struct i2c_reg_value tvp7002_parms_1080I50[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 720P60 */ +static const struct i2c_reg_value tvp7002_parms_720P60[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x02, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Register parameters for 720P50 */ +static const struct i2c_reg_value tvp7002_parms_720P50[] = { + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0c, TVP7002_WRITE }, + { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, + { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, + { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, + { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, + { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, + { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, + { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, + { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, + { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, + { TVP7002_EOR, 0xff, TVP7002_RESERVED } +}; + +/* Struct list for available formats */ +static const struct v4l2_fmtdesc tvp7002_fmt_list[] = { + { + .index = 0, + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .flags = 0, + .description = "8-bit UYVY 4:2:2 Format", + .pixelformat = V4L2_PIX_FMT_UYVY, + }, +}; + +#define NUM_FORMATS ARRAY_SIZE(tvp7002_fmt_list) + +/* Struct list for digital video presents */ +static const struct v4l2_dv_enum_preset tvp7002_presets[] = { + { + .index = INDEX_720P60, + .preset = V4L2_DV_720P60, + .name = "720P-60", + .width = 1280, + .height = 720, + }, + { + .index = INDEX_1080I60, + .preset = V4L2_DV_1080I60, + .name = "1080I-30", + .width = 1920, + .height = 1080, + }, + { + .index = INDEX_1080I50, + .preset = V4L2_DV_1080I50, + .name = "1080I-25", + .width = 1920, + .height = 1080, + }, + { + .index = INDEX_720P50, + .preset = V4L2_DV_720P50, + .name = "720P-50", + .width = 1280, + .height = 720, + }, + { + .index = INDEX_1080P60, + .preset = V4L2_DV_1080P60, + .name = "1080P-60", + .width = 1920, + .height = 1080, + }, + { + .index = INDEX_480P59_94, + .preset = V4L2_DV_480P59_94, + .name = "480P-60", + .width = 720, + .height = 480, + }, + { + .index = INDEX_576P50, + .preset = V4L2_DV_576P50, + .name = "576P-50", + .width = 720, + .height = 576, + }, +}; + +#define NUM_PRESETS ARRAY_SIZE(tvp7002_presets) + +/* Device definition */ +struct tvp7002 { + struct v4l2_subdev sd; + const struct tvp7002_config *pdata; + struct i2c_reg_value registers[ARRAY_SIZE(tvp7002_init_default)]; + + int ver; + int streaming; + + struct v4l2_pix_format pix; + int current_preset; + +}; + +/* + * to_tvp7002 - Obtain device handler TVP7002 + * @sd: ptr to v4l2_subdev struct + * + * Returns device handler tvp7002. + */ +static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) +{ + return container_of(sd, struct tvp7002, sd); +} + +/* + * tvp7002_read - Read a value from a register in an TVP7002 + * @sd: ptr to v4l2_subdev struct + * @reg: TVP7002 register address + * @dst: pointer to 8-bit destination + * + * Returns value read if successful, or non-zero (-1) otherwise. + */ +static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) +{ + struct i2c_client *c = v4l2_get_subdevdata(sd); + int retry; + int error; + + for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { + error = i2c_smbus_read_byte_data(c, addr); + + if (error >= 0) { + *dst = (u8)error; + return 0; + } + + msleep_interruptible(10); + } + v4l2_err(sd, "TVP7002 read error %d\n", error); + return error; +} + +/* + * tvp7002_read_err() - Read a register value with error code + * @sd: pointer to standard V4L2 sub-device structure + * @reg: destination register + * @val: value to be read + * @error: pointer to error value + * + * Read a value in a register and save error value in pointer. + * Also update the register table if successful + */ +static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, + u8 *dst, int *err) +{ + if (!*err) + *err = tvp7002_read(sd, reg, dst); +} + +/* + * tvp7002_write() - Write a value to a register in TVP7002 + * @sd: ptr to v4l2_subdev struct + * @addr: TVP7002 register address + * @value: value to be written to the register + * + * Write a value to a register in an TVP7002 decoder device. + * Returns zero if successful, or non-zero otherwise. + */ +static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) +{ + struct i2c_client *c; + int retry; + int error; + + c = v4l2_get_subdevdata(sd); + + for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { + error = i2c_smbus_write_byte_data(c, addr, value); + + if (error >= 0) + return 0; + + v4l2_warn(sd, "Write: retry ... %d\n", retry); + msleep_interruptible(10); + } + v4l2_err(sd, "TVP7002 write error %d\n", error); + return error; +} + +/* + * tvp7002_write_err() - Write a register value with error code + * @sd: pointer to standard V4L2 sub-device structure + * @reg: destination register + * @val: value to be written + * @error: pointer to error value + * + * Write a value in a register and save error value in pointer. + * Also update the register table if successful + */ +static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, + u8 val, int *err) +{ + if (!*err) + *err = tvp7002_write(sd, reg, val); +} + +/* + * tvp7002_g_chip_ident() - Get chip identification number + * @sd: ptr to v4l2_subdev struct + * @chip: ptr to v4l2_dbg_chip_ident struct + * + * Obtains the chip's identification number. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) +{ + u8 rev; + int error; + struct i2c_client *client = v4l2_get_subdevdata(sd); + + error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev); + + if (error < 0) + return error; + + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, + rev); +} + +/* + * tvp7002_write_inittab() - Write initialization values + * @sd: ptr to v4l2_subdev struct + * @regs: ptr to i2c_reg_value struct + * + * Write initialization values. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_write_inittab(struct v4l2_subdev *sd, + const struct i2c_reg_value *regs) +{ + int error = 0; + + /* Initialize the first (defined) registers */ + while (TVP7002_EOR != regs->reg) { + if (TVP7002_WRITE == regs->type) + tvp7002_write_err(sd, regs->reg, regs->value, &error); + regs++; + } + + return error; +} + +/* + * tvp7002_update_dev_tab() - Update device's register table + * @sd: pointer to standard V4L2 sub-device structure + * @tab: pointer to device table + * + * Update state information in the device's register table. + * Returns 0 on success or -EINVAL on error. + */ +static int tvp7002_update_dev_tab(struct v4l2_subdev *sd, + const struct i2c_reg_value *regs) +{ + struct tvp7002 *device = to_tvp7002(sd); + + if (!regs) + return -EINVAL; + + while (TVP7002_EOR != regs->reg) { + device->registers[regs->reg].value = regs->value; + regs++; + } + + return 0; +} + +/* + * tvp7002_set_fmt_parms() - Write parameters to set video mode + * @sd: pointer to standard V4L2 sub-device structure + * @regs: pointer to register table + * + * Set video mode register-dependent parameters + * Returns 0 on success or -EINVAL on error. + */ +static int tvp7002_set_fmt_parms(struct v4l2_subdev *sd, + const struct i2c_reg_value *regs){ + int error; + + v4l2_dbg(1, debug, sd, "Setting format parameters...\n"); + + if (regs == NULL) { + v4l2_dbg(1, debug, sd, "Parameter reference is NULL.\n"); + return -EINVAL; + } + + error = tvp7002_write_inittab(sd, regs); + + if (error < 0) { + v4l2_dbg(1, debug, sd, "Error in setting video parameters\n"); + return error; + } + + /* Update our device device information */ + return tvp7002_update_dev_tab(sd, regs); +} + +/* + * tvp7002_map_set_preset() - Map and set video preset to register parameters + * @std: v4l2_std_id (u64) integer + * + * Returns 0 if successful or -EINVAL on error. + */ +static int tvp7002_map_set_preset(struct v4l2_subdev *sd, u32 preset) +{ + switch (preset) { + case V4L2_DV_480P59_94: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_480P); + case V4L2_DV_576P50: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_576P); + case V4L2_DV_720P50: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_720P50); + case V4L2_DV_720P60: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_720P60); + case V4L2_DV_1080I50: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_1080I50); + case V4L2_DV_1080I60: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_1080I60); + case V4L2_DV_1080P60: + return tvp7002_set_fmt_parms(sd, tvp7002_parms_1080P60); + default: + return -EINVAL; + } +} + +/* + * tvp7002_s_dv_preset() - Set digital video preset + * @sd: ptr to v4l2_subdev struct + * @std: id of the standard to be set + * + * Set the digital video preset for a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, + struct v4l2_dv_preset *dv_preset) +{ + struct v4l2_dv_enum_preset *preset; + int i; + + for (i = 0; i < NUM_PRESETS; i++) { + preset = &tvp7002_presets[i]; + if (preset->preset == dv_preset->preset) + break; + } + + if (i == NUM_PRESETS) + return -EINVAL; + + return tvp7002_map_set_preset(sd, preset->preset); +} + +/* + * tvp7002_g_ctrl() - Get a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Get a control for a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + int error = 0; + u8 rval; + u8 gval; + u8 bval; + + switch (ctrl->id) { + case V4L2_CID_GAIN: + tvp7002_read_err(sd, TVP7002_R_FINE_GAIN, &rval, &error); + tvp7002_read_err(sd, TVP7002_G_FINE_GAIN, &gval, &error); + tvp7002_read_err(sd, TVP7002_B_FINE_GAIN, &bval, &error); + + if (error < 0) + return -EINVAL; + + if (rval != gval || rval != bval) + return -EINVAL; + + ctrl->value = rval & 0x0F; + return 0; + + break; + default: + return -EINVAL; + } +} + +/* + * tvp7002_s_ctrl() - Set a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Set a control in TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct tvp7002 *device = to_tvp7002(sd); + int error = 0; + + switch (ctrl->id) { + case V4L2_CID_GAIN: + tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, + ctrl->value & 0xff, &error); + tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, + ctrl->value & 0xff, &error); + tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, + ctrl->value & 0xff, &error); + + if (error < 0) + return -EINVAL; + + device->registers[TVP7002_R_FINE_GAIN].value = ctrl->value; + device->registers[TVP7002_G_FINE_GAIN].value = ctrl->value; + device->registers[TVP7002_B_FINE_GAIN].value = ctrl->value; + return 0; + default: + return -EINVAL; + } +} + +/* + * tvp7002_queryctrl() - Query a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_queryctrl struct + * + * Query a control of a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) +{ + switch (qc->id) { + case V4L2_CID_GAIN: + /* + * Gain is supported [0-255, default=0, step=1] + */ + return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0); + default: + return -EINVAL; + } +} + +/* + * tvp7002_colorspace - Find the color space of a video format + * @std: v4l2_std_id (u64) integer + * + * Returns color space for a standard id + */ +static inline enum v4l2_colorspace tvp7002_colorspace(int preset) +{ + switch (preset) { + case INDEX_480P59_94: + case INDEX_576P50: + return V4L2_COLORSPACE_SMPTE170M; + case INDEX_720P50: + case INDEX_720P60: + case INDEX_1080I50: + case INDEX_1080I60: + case INDEX_1080P60: + return V4L2_COLORSPACE_REC709; + default: + return 0; + } +} + +/* + * tvp7002_scanmode - Find the scan mode of a video format + * @std: v4l2_std_id (u64) integer + * + * Returns color space for a standard id + */ +static inline enum v4l2_field tvp7002_scanmode(v4l2_std_id std) +{ + switch (std) { + case INDEX_480P59_94: + case INDEX_576P50: + case INDEX_720P50: + case INDEX_720P60: + case INDEX_1080P60: + return V4L2_FIELD_SEQ_TB; + case INDEX_1080I50: + case INDEX_1080I60: + return V4L2_FIELD_INTERLACED; + default: + return V4L2_FIELD_NONE; + } +} + +/* + * tvp7002_try_fmt_cap() - V4L2 decoder interface handler for try_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure + * + * Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This + * ioctl is used to negotiate the image capture size and pixel format + * without actually making it take effect. + */ +static int tvp7002_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct tvp7002 *device = to_tvp7002(sd); + struct v4l2_pix_format *pix; + u32 current_preset; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + pix = &f->fmt.pix; + + /* Calculate height and width based on current standard */ + current_preset = device->current_preset; + + pix->width = tvp7002_presets[current_preset].width; + pix->height = tvp7002_presets[current_preset].height; + + pix->pixelformat = V4L2_PIX_FMT_UYVY; + + pix->field = tvp7002_scanmode(current_preset); + pix->bytesperline = pix->width * 2; + pix->sizeimage = pix->bytesperline * pix->height; + pix->colorspace = tvp7002_colorspace(current_preset); + pix->priv = 0; + + v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d" + "Width - %d, Height - %d", + "8-bit UYVY 4:2:2 Format", pix->bytesperline, + pix->width, pix->height); + return 0; +} + +/* + * tvp7002_s_fmt() - V4L2 decoder interface handler for s_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure + * + * If the requested format is supported, configures the HW to use that + * format, returns error code if format not supported or HW can't be + * correctly configured. + */ +static int tvp7002_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct tvp7002 *decoder = to_tvp7002(sd); + struct v4l2_pix_format *pix; + int rval; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + pix = &f->fmt.pix; + rval = tvp7002_try_fmt_cap(sd, f); + if (rval) + return rval; + + decoder->pix = *pix; + + return rval; +} + +/* + * tvp7002_g_fmt() - V4L2 decoder interface handler for tvp7002_g_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 v4l2_format structure + * + * Returns the decoder's current pixel format in the v4l2_format + * parameter. + */ +static int tvp7002_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct tvp7002 *decoder = to_tvp7002(sd); + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + f->fmt.pix = decoder->pix; + + v4l2_dbg(1, debug, sd, "Current FMT: bytesperline - %d" + "Width - %d, Height - %d", + decoder->pix.bytesperline, + decoder->pix.width, decoder->pix.height); + return 0; +} + +/* + * tvp7002_check_cpl() - check potential range for the value of clks per line + * @cpl: value of clocks per line + * + * Returns the index of detected mode or -EINVAL if no one is detected + */ +static inline int tvp7002_check_cpl(int clocks_per_line) +{ + if (clocks_per_line >= TVP7002_CPL_1080_60_LOWER && + clocks_per_line <= TVP7002_CPL_1080_60_UPPER) + return INDEX_1080I60; + else if (clocks_per_line >= TVP7002_CPL_1080_50_LOWER && + clocks_per_line <= TVP7002_CPL_1080_50_UPPER) + return INDEX_1080I50; + else if (clocks_per_line >= TVP7002_CPL_1080P_60_LOWER && + clocks_per_line <= TVP7002_CPL_1080P_60_UPPER) + return INDEX_1080P60; + else if (clocks_per_line >= TVP7002_CPL_720P_50_LOWER && + clocks_per_line <= TVP7002_CPL_720P_50_UPPER) + return INDEX_720P50; + else if (clocks_per_line >= TVP7002_CPL_720P_60_LOWER && + clocks_per_line <= TVP7002_CPL_720P_60_UPPER) + return INDEX_720P60; + else + return -EINVAL; +} + +/* + * tvp7002_query_dv_preset() - query DV preset + * @sd: pointer to standard V4L2 sub-device structure + * @std_id: standard V4L2 v4l2_dv_preset + * + * Returns the current DV preset by TVP7002. If no active input is + * detected, returns -EINVAL + */ +static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, + struct v4l2_dv_preset *qpreset) +{ + struct tvp7002 *device; + u32 lines_per_frame; + u32 clocks_per_line; + u8 progressive; + int error; + u8 lpf_lsb; + u8 lpf_msb; + u8 cpl_lsb; + u8 cpl_msb; + int index; + + device = to_tvp7002(sd); + + /* Read standards from device registers */ + tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); + tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); + + if (error < 0) + return -EINVAL; + + tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); + tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); + + if (error < 0) + return -EINVAL; + + /* Get lines per frame, clocks per line and interlaced/progresive */ + lines_per_frame = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << + TVP7002_CL_SHIFT); + clocks_per_line = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << + TVP7002_CL_SHIFT); + progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; + + /* Assert read values */ + if (!progressive) { + switch (lines_per_frame) { + case TVP7002_LINES_1080: + goto assert_hd; + default: + goto assert_fail; + } + } else { + switch (lines_per_frame) { + case TVP7002_LINES_1080: + case TVP7002_LINES_720: + goto assert_hd; + case 525: + index = INDEX_480P59_94; + goto assert_sd; + case 625: + index = INDEX_576P50; + goto assert_sd; + default: + goto assert_fail; + } + } + +assert_fail: + v4l2_err(sd, "querystd error, lpf = %x, cpl = %x\n", + lines_per_frame, clocks_per_line); + return -EINVAL; + +assert_hd: + index = tvp7002_check_cpl(clocks_per_line); + if (index < 0) + goto assert_fail; + +assert_sd: + /* Set values in found preset */ + qpreset->preset = tvp7002_presets[index].preset; + device->current_preset = index; + error = tvp7002_s_dv_preset(sd, qpreset); + + /* Update lines per frame and clocks per line info */ + v4l2_dbg(1, debug, sd, "Current preset: %d %d", + tvp7002_presets[index].width, + tvp7002_presets[index].height); + + return error; +} + +#ifdef CONFIG_VIDEO_ADV_DEBUG +/* + * tvp7002_g_register() - Get the value of a register + * @sd: ptr to v4l2_subdev struct + * @vreg: ptr to v4l2_dbg_register struct + * + * Get the value of a TVP7002 decoder device register. + * Returns zero when successful, -EINVAL if register read fails or + * access to I2C client fails, -EPERM if the call is not allowed + * by diabled CAP_SYS_ADMIN. + */ +static int tvp7002_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + return reg->val < 0 ? -EINVAL : 0; +} + +/* + * tvp7002_s_register() - set a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Get the value of a TVP7002 decoder device register. + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_s_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct tvp7002 *device = to_tvp7002(sd); + int wres; + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + wres = tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); + + /* Update the register value in device's table */ + if (!wres) + device->registers[reg->reg].value = reg->val; + + return wres < 0 ? -EINVAL : 0; +} +#endif + +/* + * tvp7002_enum_fmt() - Enum supported formats + * @sd: pointer to standard V4L2 sub-device structure + * @enable: pointer to format struct + * + * Enumerate supported formats. + */ + +static int tvp7002_enum_fmt(struct v4l2_subdev *sd, + struct v4l2_fmtdesc *fmtdesc) +{ + /* Check requested format index is within range */ + if (fmtdesc->index < 0 || fmtdesc->index >= NUM_FORMATS) + return -EINVAL; + memcpy(fmtdesc, tvp7002_fmt_list + fmtdesc->index, + sizeof(tvp7002_fmt_list[fmtdesc->index])); + + return 0; +} + +/* + * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream + * @sd: pointer to standard V4L2 sub-device structure + * @enable: streaming enable or disable + * + * Sets streaming to enable or disable, if possible. + */ +static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct tvp7002 *device = to_tvp7002(sd); + int error = 0; + + if (device->streaming == enable) + return 0; + + if (enable) { + /* Set output state on (low impedance means stream on) */ + device->registers[TVP7002_MISC_CTL_2].value = 0x00; + /* Power off chip */ + error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f); + if (error) { + v4l2_dbg(1, debug, sd, "Unable to start streaming\n"); + error = -EINVAL; + } + /* Power on chip */ + error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00); + if (error) { + v4l2_dbg(1, debug, sd, "Unable to start streaming\n"); + return error; + } + /* Re-set register values with stored ones */ + error = tvp7002_write_inittab(sd, device->registers); + + if (error < 0) { + v4l2_dbg(1, debug, sd, "Unable to start streaming\n"); + return error; + } + device->streaming = enable; + } else { + /* Set output state off (low impedance means stream off) */ + device->registers[TVP7002_MISC_CTL_2].value = 0x03; + error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03); + if (error) { + v4l2_dbg(1, debug, sd, "Unable to stop streaming\n"); + error = -EINVAL; + } + + device->streaming = enable; + } + + return error; +} + +/* + * tvp7002_log_chk() - Check reading the value of a register + * @sd: ptr to v4l2_subdev struct + * @reg: register to read + * @message: register name/function + * + * Check procedure for reading a register. + * Returns nothing (void). + */ +static inline void tvp7002_log_chk(struct v4l2_subdev *sd, u8 reg, + const char *message) +{ + int error; + u8 result; + + error = tvp7002_read(sd, reg, &result); + + if (error >= 0) + v4l2_info(sd, "%s (0x%02x) = 0x%02x\n", message, reg, result); +} + +/* + * tvp7002_log_status() - Print information about register settings + * @sd: ptr to v4l2_subdev struct + * + * Log register values of a TVP7002 decoder device. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_log_status(struct v4l2_subdev *sd) +{ + struct tvp7002 *device = to_tvp7002(sd); + struct v4l2_dv_preset preset; + int i; + + tvp7002_log_chk(sd, TVP7002_CHIP_REV, "Chip revision number"); + + /* Find my current standard*/ + tvp7002_query_dv_preset(sd, &preset); + + /* Print standard related code values */ + for (i = 0; i < NUM_PRESETS; i++) + if (tvp7002_presets[i].preset == preset.preset) + break; + + if (i == NUM_PRESETS) + return -EINVAL; + + v4l2_info(sd, "DV Preset: %s\n", tvp7002_presets[i].name); + v4l2_info(sd, "Pixels per line: %u\n", tvp7002_presets[i].width); + v4l2_info(sd, "Lines per frame: %u\n", tvp7002_presets[i].height); + v4l2_info(sd, "Streaming enabled: %s\n", device->streaming ? "yes" : "no"); + + /* Print values of the gain control */ + tvp7002_log_chk(sd, TVP7002_B_FINE_GAIN, "Digital fine gain B ch"); + tvp7002_log_chk(sd, TVP7002_G_FINE_GAIN, "Digital fine gain G ch"); + tvp7002_log_chk(sd, TVP7002_R_FINE_GAIN, "Digital fine gain R ch"); + + return 0; +} + +/* + * tvp7002_reset - Reset a TVP7002 device + * @sd: ptr to v4l2_subdev struct + * @val: unsigned integer (not used) + * + * Reset the TVP7002 device + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_reset(struct v4l2_subdev *sd, u32 val) +{ + struct tvp7002 *device = to_tvp7002(sd); + struct v4l2_dv_preset preset; + int polarity_a; + int polarity_b; + u8 revision; + int error; + + error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); + if (error < 0) + goto found_error; + + /* Get revision number */ + v4l2_info(sd, "Rev. %02x detected.\n", revision); + if (revision != 0x02) + v4l2_info(sd, "Unknown revision detected.\n"); + + /* Power down and up */ + error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x7f); + if (error < 0) + goto found_error; + + error = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00); + if (error < 0) + goto found_error; + + /* Set the default register values */ + memcpy(device->registers, tvp7002_init_default, + sizeof(tvp7002_init_default)); + + /* Initializes TVP7002 to its default values */ + error = tvp7002_write_inittab(sd, device->registers); + + if (error < 0) + goto found_error; + + /* Set polarity information after registers have been set */ + + polarity_a = 0x20 | device->pdata->hs_polarity << 5 + | device->pdata->vs_polarity << 2; + error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); + if (error < 0) + goto found_error; + + polarity_b = 0x01 | device->pdata->fid_polarity << 2 + | device->pdata->sog_polarity << 1 + | device->pdata->clk_polarity; + error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); + if (error < 0) + goto found_error; + + /* Save polarity information in register */ + device->registers[TVP7002_SYNC_CTL_1].value = polarity_a; + device->registers[TVP7002_MISC_CTL_3].value = polarity_b; + /* Set registers according to default video mode */ + preset.preset = tvp7002_presets[device->current_preset].preset; + error = tvp7002_s_dv_preset(sd, &preset); + +found_error: + return error; +}; + +/* V4L2 core operation handlers */ +static const struct v4l2_subdev_core_ops tvp7002_core_ops = { + .g_chip_ident = tvp7002_g_chip_ident, + .log_status = tvp7002_log_status, + .g_ctrl = tvp7002_g_ctrl, + .s_ctrl = tvp7002_s_ctrl, + .queryctrl = tvp7002_queryctrl, + .reset = tvp7002_reset, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = tvp7002_g_register, + .s_register = tvp7002_s_register, +#endif +}; + +/* Specific video subsystem operation handlers */ +static const struct v4l2_subdev_video_ops tvp7002_video_ops = { + .s_dv_preset = tvp7002_s_dv_preset, + .query_dv_preset = tvp7002_query_dv_preset, + .s_stream = tvp7002_s_stream, + .g_fmt = tvp7002_g_fmt, + .s_fmt = tvp7002_s_fmt, + .enum_fmt = tvp7002_enum_fmt, +}; + +/* V4L2 top level operation handlers */ +static const struct v4l2_subdev_ops tvp7002_ops = { + .core = &tvp7002_core_ops, + .video = &tvp7002_video_ops, +}; + +static struct tvp7002 tvp7002_dev = { + .streaming = 0, + + .pix = { + .width = HD_720_NUM_ACTIVE_PIXELS, + .height = HD_720_NUM_ACTIVE_LINES, + .pixelformat = V4L2_PIX_FMT_UYVY, + .field = V4L2_FIELD_NONE, + .bytesperline = HD_720_NUM_ACTIVE_PIXELS * 2, + .sizeimage = + HD_720_NUM_ACTIVE_PIXELS * 2 * HD_720_NUM_ACTIVE_LINES, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + }, + + .current_preset = INDEX_720P60, +}; + +/* + * tvp7002_probe - Probe a TVP7002 device + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to i2c_device_id struct + * + * Initialize the TVP7002 device + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) +{ + struct v4l2_subdev *sd; + struct tvp7002 *device; + int error; + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(c->adapter, + I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) + return -EIO; + + if (!c->dev.platform_data) { + v4l2_err(c, "No platform data!!\n"); + return -ENODEV; + } + + device = (struct tvp7002 *) kmalloc(sizeof(struct tvp7002), + GFP_KERNEL); + + if (!device) + return -ENOMEM; + + memcpy(device, &tvp7002_dev, sizeof(struct tvp7002)); + sd = &device->sd; + device->pdata = c->dev.platform_data; + + /* Tell v4l2 the device is ready */ + v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); + v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", + c->addr, c->adapter->name); + + /* Initialize device internals */ + error = tvp7002_reset(sd, 0); + if (error < 0) { + kfree(device); + return error; + } + return 0; +} + +/* + * tvp7002_remove - Remove TVP7002 device support + * @c: ptr to i2c_client struct + * + * Reset the TVP7002 device + * Returns zero. + */ +static int tvp7002_remove(struct i2c_client *c) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(c); + struct tvp7002 *device = to_tvp7002(sd); + + v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" + "on address 0x%x\n", c->addr); + + v4l2_device_unregister_subdev(sd); + kfree(device); + return 0; +} + +/* I2C Device ID table */ +static const struct i2c_device_id tvp7002_id[] = { + { "tvp7002", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tvp7002_id); + +/* I2C driver data */ +static struct i2c_driver tvp7002_driver = { + .driver = { + .owner = THIS_MODULE, + .name = TVP7002_MODULE_NAME, + }, + .probe = tvp7002_probe, + .remove = tvp7002_remove, + .id_table = tvp7002_id, +}; + +/* + * tvp7002_init - Initialize driver via I2C interface + * + * Register the TVP7002 driver. + * Returns 0 on success or < 0 on failure. + */ +static int __init tvp7002_init(void) +{ + return i2c_add_driver(&tvp7002_driver); +} + +/* + * tvp7002_exit - Remove driver via I2C interface + * + * Unregister the TVP7002 driver. + * Returns 0 on success or < 0 on failure. + */ +static void __exit tvp7002_exit(void) +{ + i2c_del_driver(&tvp7002_driver); +} + +module_init(tvp7002_init); +module_exit(tvp7002_exit);