drivers/media/video/tvp7002.c

   1 /* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
   2  * Digitizer with Horizontal PLL registers
   3  *
   4  * Copyright (C) 2009 Texas Instruments Inc
   5  * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>
   6  *
   7  * This code is partially based upon the TVP5150 driver
   8  * written by Mauro Carvalho Chehab (mchehab@infradead.org),
   9  * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
  10  * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
  11  * Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  */
  27 #include <linux/delay.h>
  28 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/videodev2.h>
  31 #include <media/tvp7002.h>
  32 #include <media/v4l2-device.h>
  33 #include <media/v4l2-chip-ident.h>
  34 #include <media/v4l2-common.h>
  35 #include "tvp7002_reg.h"
  36
  37 MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
  38 MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>");
  39 MODULE_LICENSE("GPL");
  40
  41 /* Module Name */
  42 #define TVP7002_MODULE_NAME     "tvp7002"
  43
  44 /* I2C retry attempts */
  45 #define I2C_RETRY_COUNT         (5)
  46
  47 /* End of registers */
  48 #define TVP7002_EOR             0x5c
  49
  50 /* Read write definition for registers */
  51 #define TVP7002_READ            0
  52 #define TVP7002_WRITE           1
  53 #define TVP7002_RESERVED        2
  54
  55 /* Interlaced vs progressive mask and shift */
  56 #define TVP7002_IP_SHIFT        5
  57 #define TVP7002_INPR_MASK       (0x01 << TVP7002_IP_SHIFT)
  58
  59 /* Shift for CPL and LPF registers */
  60 #define TVP7002_CL_SHIFT        8
  61 #define TVP7002_CL_MASK         0x0f
  62
  63 /* Debug functions */
  64 static int debug;
  65 module_param(debug, bool, 0644);
  66 MODULE_PARM_DESC(debug, "Debug level (0-2)");
  67
  68 /* Structure for register values */
  69 struct i2c_reg_value {
  70         u8 reg;
  71         u8 value;
  72         u8 type;
  73 };
  74
  75 /*
  76  * Register default values (according to tvp7002 datasheet)
  77  * In the case of read-only registers, the value (0xff) is
  78  * never written. R/W functionality is controlled by the
  79  * writable bit in the register struct definition.
  80  */
  81 static const struct i2c_reg_value tvp7002_init_default[] = {
  82         { TVP7002_CHIP_REV, 0xff, TVP7002_READ },
  83         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
  84         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
  85         { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
  86         { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
  87         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
  88         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
  89         { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
  90         { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
  91         { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
  92         { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
  93         { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  94         { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  95         { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  96         { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
  97         { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
  98         { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
  99         { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
 100         { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
 101         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 102         { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
 103         { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
 104         { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
 105         { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
 106         { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
 107         { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
 108         { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
 109         { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
 110         { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
 111         { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
 112         { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
 113         { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
 114         { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
 115         { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
 116         { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
 117         { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 118         { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 119         { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 120         { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
 121         { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
 122         { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
 123         { 0x29, 0x08, TVP7002_RESERVED },
 124         { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
 125         /* PWR_CTL is controlled only by the probe and reset functions */
 126         { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
 127         { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
 128         { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
 129         { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
 130         { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
 131         { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
 132         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 133         { 0x32, 0x18, TVP7002_RESERVED },
 134         { 0x33, 0x60, TVP7002_RESERVED },
 135         { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
 136         { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
 137         { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
 138         { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
 139         { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
 140         { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
 141         { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
 142         { TVP7002_HSYNC_W, 0xff, TVP7002_READ },
 143         { TVP7002_VSYNC_W, 0xff, TVP7002_READ },
 144         { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
 145         { 0x3e, 0x60, TVP7002_RESERVED },
 146         { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
 147         { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
 148         { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
 149         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 150         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
 151         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 152         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 153         { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
 154         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 155         { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
 156         { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 157         { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
 158         { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
 159         { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
 160         { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
 161         { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
 162         { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
 163         { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
 164         { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
 165         { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
 166         { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
 167         { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
 168         { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
 169         { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
 170         { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
 171         { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
 172         { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
 173         { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
 174         { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
 175         /* This signals end of register values */
 176         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 177 };
 178
 179 /* Register parameters for 480P */
 180 static const struct i2c_reg_value tvp7002_parms_480P[] = {
 181         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
 182         { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
 183         { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
 184         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 185         { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
 186         { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 187         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
 188         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 189         { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
 190         { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
 191         { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
 192         { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
 193         { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
 194         { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
 195         { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
 196         { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
 197         { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
 198         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 199 };
 200
 201 /* Register parameters for 576P */
 202 static const struct i2c_reg_value tvp7002_parms_576P[] = {
 203         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
 204         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
 205         { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
 206         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 207         { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
 208         { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 209         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
 210         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 211         { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
 212         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 213         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 214         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 215         { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
 216         { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
 217         { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
 218         { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
 219         { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
 220         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 221 };
 222
 223 /* Register parameters for 1080I60 */
 224 static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
 225         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
 226         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
 227         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 228         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 229         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 230         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 231         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 232         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 233         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 234         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 235         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 236         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 237         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 238         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 239         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 240         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 241         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 242         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 243 };
 244
 245 /* Register parameters for 1080P60 */
 246 static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
 247         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
 248         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
 249         { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
 250         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 251         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 252         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 253         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 254         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 255         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 256         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 257         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 258         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 259         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 260         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 261         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 262         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 263         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 264         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 265 };
 266
 267 /* Register parameters for 1080I50 */
 268 static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
 269         { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
 270         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
 271         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 272         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 273         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 274         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 275         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 276         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 277         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 278         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 279         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 280         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 281         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 282         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 283         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 284         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 285         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 286         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 287 };
 288
 289 /* Register parameters for 720P60 */
 290 static const struct i2c_reg_value tvp7002_parms_720P60[] = {
 291         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
 292         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
 293         { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
 294         { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
 295         { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
 296         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 297         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
 298         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
 299         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 300         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 301         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 302         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 303         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 304         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 305         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 306         { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
 307         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 308         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 309 };
 310
 311 /* Register parameters for 720P50 */
 312 static const struct i2c_reg_value tvp7002_parms_720P50[] = {
 313         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
 314         { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE },
 315         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 316         { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
 317         { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
 318         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 319         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
 320         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
 321         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 322         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 323         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 324         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 325         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 326         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 327         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 328         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 329         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 330         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 331 };
 332
 333 /* Preset definition for handling device operation */
 334 struct tvp7002_preset_definition {
 335         u32 preset;
 336         const struct i2c_reg_value *p_settings;
 337         enum v4l2_colorspace color_space;
 338         enum v4l2_field scanmode;
 339         u16 progressive;
 340         u16 lines_per_frame;
 341         u16 cpl_min;
 342         u16 cpl_max;
 343 };
 344
 345 /* Struct list for digital video presets */
 346 static const struct tvp7002_preset_definition tvp7002_presets[] = {
 347         {
 348                 V4L2_DV_720P60,
 349                 tvp7002_parms_720P60,
 350                 V4L2_COLORSPACE_REC709,
 351                 V4L2_FIELD_NONE,
 352                 1,
 353                 0x2EE,
 354                 135,
 355                 153
 356         },
 357         {
 358                 V4L2_DV_1080I60,
 359                 tvp7002_parms_1080I60,
 360                 V4L2_COLORSPACE_REC709,
 361                 V4L2_FIELD_INTERLACED,
 362                 0,
 363                 0x465,
 364                 181,
 365                 205
 366         },
 367         {
 368                 V4L2_DV_1080I50,
 369                 tvp7002_parms_1080I50,
 370                 V4L2_COLORSPACE_REC709,
 371                 V4L2_FIELD_INTERLACED,
 372                 0,
 373                 0x465,
 374                 217,
 375                 245
 376         },
 377         {
 378                 V4L2_DV_720P50,
 379                 tvp7002_parms_720P50,
 380                 V4L2_COLORSPACE_REC709,
 381                 V4L2_FIELD_NONE,
 382                 1,
 383                 0x2EE,
 384                 163,
 385                 183
 386         },
 387         {
 388                 V4L2_DV_1080P60,
 389                 tvp7002_parms_1080P60,
 390                 V4L2_COLORSPACE_REC709,
 391                 V4L2_FIELD_NONE,
 392                 1,
 393                 0x465,
 394                 90,
 395                 102
 396         },
 397         {
 398                 V4L2_DV_480P59_94,
 399                 tvp7002_parms_480P,
 400                 V4L2_COLORSPACE_SMPTE170M,
 401                 V4L2_FIELD_NONE,
 402                 1,
 403                 0x20D,
 404                 0xffff,
 405                 0xffff
 406         },
 407         {
 408                 V4L2_DV_576P50,
 409                 tvp7002_parms_576P,
 410                 V4L2_COLORSPACE_SMPTE170M,
 411                 V4L2_FIELD_NONE,
 412                 1,
 413                 0x271,
 414                 0xffff,
 415                 0xffff
 416         }
 417 };
 418
 419 #define NUM_PRESETS     ARRAY_SIZE(tvp7002_presets)
 420
 421 /* Device definition */
 422 struct tvp7002 {
 423         struct v4l2_subdev sd;
 424         const struct tvp7002_config *pdata;
 425
 426         int ver;
 427         int streaming;
 428
 429         const struct tvp7002_preset_definition *current_preset;
 430         u8 gain;
 431 };
 432
 433 /*
 434  * to_tvp7002 - Obtain device handler TVP7002
 435  * @sd: ptr to v4l2_subdev struct
 436  *
 437  * Returns device handler tvp7002.
 438  */
 439 static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd)
 440 {
 441         return container_of(sd, struct tvp7002, sd);
 442 }
 443
 444 /*
 445  * tvp7002_read - Read a value from a register in an TVP7002
 446  * @sd: ptr to v4l2_subdev struct
 447  * @addr: TVP7002 register address
 448  * @dst: pointer to 8-bit destination
 449  *
 450  * Returns value read if successful, or non-zero (-1) otherwise.
 451  */
 452 static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst)
 453 {
 454         struct i2c_client *c = v4l2_get_subdevdata(sd);
 455         int retry;
 456         int error;
 457
 458         for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
 459                 error = i2c_smbus_read_byte_data(c, addr);
 460
 461                 if (error >= 0) {
 462                         *dst = (u8)error;
 463                         return 0;
 464                 }
 465
 466                 msleep_interruptible(10);
 467         }
 468         v4l2_err(sd, "TVP7002 read error %d\n", error);
 469         return error;
 470 }
 471
 472 /*
 473  * tvp7002_read_err() - Read a register value with error code
 474  * @sd: pointer to standard V4L2 sub-device structure
 475  * @reg: destination register
 476  * @val: value to be read
 477  * @err: pointer to error value
 478  *
 479  * Read a value in a register and save error value in pointer.
 480  * Also update the register table if successful
 481  */
 482 static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg,
 483                                                         u8 *dst, int *err)
 484 {
 485         if (!*err)
 486                 *err = tvp7002_read(sd, reg, dst);
 487 }
 488
 489 /*
 490  * tvp7002_write() - Write a value to a register in TVP7002
 491  * @sd: ptr to v4l2_subdev struct
 492  * @addr: TVP7002 register address
 493  * @value: value to be written to the register
 494  *
 495  * Write a value to a register in an TVP7002 decoder device.
 496  * Returns zero if successful, or non-zero otherwise.
 497  */
 498 static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value)
 499 {
 500         struct i2c_client *c;
 501         int retry;
 502         int error;
 503
 504         c = v4l2_get_subdevdata(sd);
 505
 506         for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
 507                 error = i2c_smbus_write_byte_data(c, addr, value);
 508
 509                 if (error >= 0)
 510                         return 0;
 511
 512                 v4l2_warn(sd, "Write: retry ... %d\n", retry);
 513                 msleep_interruptible(10);
 514         }
 515         v4l2_err(sd, "TVP7002 write error %d\n", error);
 516         return error;
 517 }
 518
 519 /*
 520  * tvp7002_write_err() - Write a register value with error code
 521  * @sd: pointer to standard V4L2 sub-device structure
 522  * @reg: destination register
 523  * @val: value to be written
 524  * @err: pointer to error value
 525  *
 526  * Write a value in a register and save error value in pointer.
 527  * Also update the register table if successful
 528  */
 529 static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg,
 530                                                         u8 val, int *err)
 531 {
 532         if (!*err)
 533                 *err = tvp7002_write(sd, reg, val);
 534 }
 535
 536 /*
 537  * tvp7002_g_chip_ident() - Get chip identification number
 538  * @sd: ptr to v4l2_subdev struct
 539  * @chip: ptr to v4l2_dbg_chip_ident struct
 540  *
 541  * Obtains the chip's identification number.
 542  * Returns zero or -EINVAL if read operation fails.
 543  */
 544 static int tvp7002_g_chip_ident(struct v4l2_subdev *sd,
 545                                         struct v4l2_dbg_chip_ident *chip)
 546 {
 547         u8 rev;
 548         int error;
 549         struct i2c_client *client = v4l2_get_subdevdata(sd);
 550
 551         error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev);
 552
 553         if (error < 0)
 554                 return error;
 555
 556         return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev);
 557 }
 558
 559 /*
 560  * tvp7002_write_inittab() - Write initialization values
 561  * @sd: ptr to v4l2_subdev struct
 562  * @regs: ptr to i2c_reg_value struct
 563  *
 564  * Write initialization values.
 565  * Returns zero or -EINVAL if read operation fails.
 566  */
 567 static int tvp7002_write_inittab(struct v4l2_subdev *sd,
 568                                         const struct i2c_reg_value *regs)
 569 {
 570         int error = 0;
 571
 572         /* Initialize the first (defined) registers */
 573         while (TVP7002_EOR != regs->reg) {
 574                 if (TVP7002_WRITE == regs->type)
 575                         tvp7002_write_err(sd, regs->reg, regs->value, &error);
 576                 regs++;
 577         }
 578
 579         return error;
 580 }
 581
 582 /*
 583  * tvp7002_s_dv_preset() - Set digital video preset
 584  * @sd: ptr to v4l2_subdev struct
 585  * @dv_preset: ptr to v4l2_dv_preset struct
 586  *
 587  * Set the digital video preset for a TVP7002 decoder device.
 588  * Returns zero when successful or -EINVAL if register access fails.
 589  */
 590 static int tvp7002_s_dv_preset(struct v4l2_subdev *sd,
 591                                         struct v4l2_dv_preset *dv_preset)
 592 {
 593         struct tvp7002 *device = to_tvp7002(sd);
 594         u32 preset;
 595         int i;
 596
 597         for (i = 0; i < NUM_PRESETS; i++) {
 598                 preset = tvp7002_presets[i].preset;
 599                 if (preset == dv_preset->preset) {
 600                         device->current_preset = &tvp7002_presets[i];
 601                         return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);
 602                 }
 603         }
 604
 605         return -EINVAL;
 606 }
 607
 608 /*
 609  * tvp7002_g_ctrl() - Get a control
 610  * @sd: ptr to v4l2_subdev struct
 611  * @ctrl: ptr to v4l2_control struct
 612  *
 613  * Get a control for a TVP7002 decoder device.
 614  * Returns zero when successful or -EINVAL if register access fails.
 615  */
 616 static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 617 {
 618         struct tvp7002 *device = to_tvp7002(sd);
 619
 620         switch (ctrl->id) {
 621         case V4L2_CID_GAIN:
 622                 ctrl->value = device->gain;
 623                 return 0;
 624         default:
 625                 return -EINVAL;
 626         }
 627 }
 628
 629 /*
 630  * tvp7002_s_ctrl() - Set a control
 631  * @sd: ptr to v4l2_subdev struct
 632  * @ctrl: ptr to v4l2_control struct
 633  *
 634  * Set a control in TVP7002 decoder device.
 635  * Returns zero when successful or -EINVAL if register access fails.
 636  */
 637 static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 638 {
 639         struct tvp7002 *device = to_tvp7002(sd);
 640         int error = 0;
 641
 642         switch (ctrl->id) {
 643         case V4L2_CID_GAIN:
 644                 tvp7002_write_err(sd, TVP7002_R_FINE_GAIN,
 645                                                 ctrl->value & 0xff, &error);
 646                 tvp7002_write_err(sd, TVP7002_G_FINE_GAIN,
 647                                                 ctrl->value & 0xff, &error);
 648                 tvp7002_write_err(sd, TVP7002_B_FINE_GAIN,
 649                                                 ctrl->value & 0xff, &error);
 650
 651                 if (error < 0)
 652                         return error;
 653
 654                 /* Set only after knowing there is no error */
 655                 device->gain = ctrl->value & 0xff;
 656                 return 0;
 657         default:
 658                 return -EINVAL;
 659         }
 660 }
 661
 662 /*
 663  * tvp7002_queryctrl() - Query a control
 664  * @sd: ptr to v4l2_subdev struct
 665  * @qc: ptr to v4l2_queryctrl struct
 666  *
 667  * Query a control of a TVP7002 decoder device.
 668  * Returns zero when successful or -EINVAL if register read fails.
 669  */
 670 static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
 671 {
 672         switch (qc->id) {
 673         case V4L2_CID_GAIN:
 674                 /*
 675                  * Gain is supported [0-255, default=0, step=1]
 676                  */
 677                 return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
 678         default:
 679                 return -EINVAL;
 680         }
 681 }
 682
 683 /*
 684  * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt
 685  * @sd: pointer to standard V4L2 sub-device structure
 686  * @f: pointer to mediabus format structure
 687  *
 688  * Negotiate the image capture size and mediabus format.
 689  * There is only one possible format, so this single function works for
 690  * get, set and try.
 691  */
 692 static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
 693 {
 694         struct tvp7002 *device = to_tvp7002(sd);
 695         struct v4l2_dv_enum_preset e_preset;
 696         int error;
 697
 698         /* Calculate height and width based on current standard */
 699         error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset);
 700         if (error)
 701                 return error;
 702
 703         f->width = e_preset.width;
 704         f->height = e_preset.height;
 705         f->code = V4L2_MBUS_FMT_YUYV10_1X20;
 706         f->field = device->current_preset->scanmode;
 707         f->colorspace = device->current_preset->color_space;
 708
 709         v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d",
 710                         f->width, f->height);
 711         return 0;
 712 }
 713
 714 /*
 715  * tvp7002_query_dv_preset() - query DV preset
 716  * @sd: pointer to standard V4L2 sub-device structure
 717  * @qpreset: standard V4L2 v4l2_dv_preset structure
 718  *
 719  * Returns the current DV preset by TVP7002. If no active input is
 720  * detected, returns -EINVAL
 721  */
 722 static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
 723                                                 struct v4l2_dv_preset *qpreset)
 724 {
 725         const struct tvp7002_preset_definition *presets = tvp7002_presets;
 726         struct tvp7002 *device;
 727         u8 progressive;
 728         u32 lpfr;
 729         u32 cpln;
 730         int error = 0;
 731         u8 lpf_lsb;
 732         u8 lpf_msb;
 733         u8 cpl_lsb;
 734         u8 cpl_msb;
 735         int index;
 736
 737         device = to_tvp7002(sd);
 738
 739         /* Read standards from device registers */
 740         tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
 741         tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error);
 742
 743         if (error < 0)
 744                 return error;
 745
 746         tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error);
 747         tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error);
 748
 749         if (error < 0)
 750                 return error;
 751
 752         /* Get lines per frame, clocks per line and interlaced/progresive */
 753         lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT);
 754         cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT);
 755         progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
 756
 757         /* Do checking of video modes */
 758         for (index = 0; index < NUM_PRESETS; index++, presets++)
 759                 if (lpfr  == presets->lines_per_frame &&
 760                         progressive == presets->progressive) {
 761                         if (presets->cpl_min == 0xffff)
 762                                 break;
 763                         if (cpln >= presets->cpl_min && cpln <= presets->cpl_max)
 764                                 break;
 765                 }
 766
 767         if (index == NUM_PRESETS) {
 768                 v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
 769                                                                 lpfr, cpln);
 770                 /* Could not detect a signal, so return the 'invalid' preset */
 771                 qpreset->preset = V4L2_DV_INVALID;
 772                 return 0;
 773         }
 774
 775         /* Set values in found preset */
 776         qpreset->preset = presets->preset;
 777
 778         /* Update lines per frame and clocks per line info */
 779         v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset);
 780         return 0;
 781 }
 782
 783 #ifdef CONFIG_VIDEO_ADV_DEBUG
 784 /*
 785  * tvp7002_g_register() - Get the value of a register
 786  * @sd: ptr to v4l2_subdev struct
 787  * @reg: ptr to v4l2_dbg_register struct
 788  *
 789  * Get the value of a TVP7002 decoder device register.
 790  * Returns zero when successful, -EINVAL if register read fails or
 791  * access to I2C client fails, -EPERM if the call is not allowed
 792  * by disabled CAP_SYS_ADMIN.
 793  */
 794 static int tvp7002_g_register(struct v4l2_subdev *sd,
 795                                                 struct v4l2_dbg_register *reg)
 796 {
 797         struct i2c_client *client = v4l2_get_subdevdata(sd);
 798         u8 val;
 799         int ret;
 800
 801         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 802                 return -EINVAL;
 803         if (!capable(CAP_SYS_ADMIN))
 804                 return -EPERM;
 805
 806         ret = tvp7002_read(sd, reg->reg & 0xff, &val);
 807         reg->val = val;
 808         return ret;
 809 }
 810
 811 /*
 812  * tvp7002_s_register() - set a control
 813  * @sd: ptr to v4l2_subdev struct
 814  * @reg: ptr to v4l2_dbg_register struct
 815  *
 816  * Get the value of a TVP7002 decoder device register.
 817  * Returns zero when successful, -EINVAL if register read fails or
 818  * -EPERM if call not allowed.
 819  */
 820 static int tvp7002_s_register(struct v4l2_subdev *sd,
 821                                                 struct v4l2_dbg_register *reg)
 822 {
 823         struct i2c_client *client = v4l2_get_subdevdata(sd);
 824
 825         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 826                 return -EINVAL;
 827         if (!capable(CAP_SYS_ADMIN))
 828                 return -EPERM;
 829
 830         return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
 831 }
 832 #endif
 833
 834 /*
 835  * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats
 836  * @sd: pointer to standard V4L2 sub-device structure
 837  * @index: format index
 838  * @code: pointer to mediabus format
 839  *
 840  * Enumerate supported mediabus formats.
 841  */
 842
 843 static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
 844                                         enum v4l2_mbus_pixelcode *code)
 845 {
 846         /* Check requested format index is within range */
 847         if (index)
 848                 return -EINVAL;
 849         *code = V4L2_MBUS_FMT_YUYV10_1X20;
 850         return 0;
 851 }
 852
 853 /*
 854  * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
 855  * @sd: pointer to standard V4L2 sub-device structure
 856  * @enable: streaming enable or disable
 857  *
 858  * Sets streaming to enable or disable, if possible.
 859  */
 860 static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable)
 861 {
 862         struct tvp7002 *device = to_tvp7002(sd);
 863         int error = 0;
 864
 865         if (device->streaming == enable)
 866                 return 0;
 867
 868         if (enable) {
 869                 /* Set output state on (low impedance means stream on) */
 870                 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00);
 871                 device->streaming = enable;
 872         } else {
 873                 /* Set output state off (high impedance means stream off) */
 874                 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03);
 875                 if (error)
 876                         v4l2_dbg(1, debug, sd, "Unable to stop streaming\n");
 877
 878                 device->streaming = enable;
 879         }
 880
 881         return error;
 882 }
 883
 884 /*
 885  * tvp7002_log_status() - Print information about register settings
 886  * @sd: ptr to v4l2_subdev struct
 887  *
 888  * Log register values of a TVP7002 decoder device.
 889  * Returns zero or -EINVAL if read operation fails.
 890  */
 891 static int tvp7002_log_status(struct v4l2_subdev *sd)
 892 {
 893         const struct tvp7002_preset_definition *presets = tvp7002_presets;
 894         struct tvp7002 *device = to_tvp7002(sd);
 895         struct v4l2_dv_enum_preset e_preset;
 896         struct v4l2_dv_preset detected;
 897         int i;
 898
 899         detected.preset = V4L2_DV_INVALID;
 900         /* Find my current standard*/
 901         tvp7002_query_dv_preset(sd, &detected);
 902
 903         /* Print standard related code values */
 904         for (i = 0; i < NUM_PRESETS; i++, presets++)
 905                 if (presets->preset == detected.preset)
 906                         break;
 907
 908         if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset))
 909                 return -EINVAL;
 910
 911         v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name);
 912         v4l2_info(sd, "   Pixels per line: %u\n", e_preset.width);
 913         v4l2_info(sd, "   Lines per frame: %u\n\n", e_preset.height);
 914         if (i == NUM_PRESETS) {
 915                 v4l2_info(sd, "Detected DV Preset: None\n");
 916         } else {
 917                 if (v4l_fill_dv_preset_info(presets->preset, &e_preset))
 918                         return -EINVAL;
 919                 v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name);
 920                 v4l2_info(sd, "  Pixels per line: %u\n", e_preset.width);
 921                 v4l2_info(sd, "  Lines per frame: %u\n\n", e_preset.height);
 922         }
 923         v4l2_info(sd, "Streaming enabled: %s\n",
 924                                         device->streaming ? "yes" : "no");
 925
 926         /* Print the current value of the gain control */
 927         v4l2_info(sd, "Gain: %u\n", device->gain);
 928
 929         return 0;
 930 }
 931
 932 /*
 933  * tvp7002_enum_dv_presets() - Enum supported digital video formats
 934  * @sd: pointer to standard V4L2 sub-device structure
 935  * @preset: pointer to format struct
 936  *
 937  * Enumerate supported digital video formats.
 938  */
 939 static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd,
 940                 struct v4l2_dv_enum_preset *preset)
 941 {
 942         /* Check requested format index is within range */
 943         if (preset->index >= NUM_PRESETS)
 944                 return -EINVAL;
 945
 946         return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);
 947 }
 948
 949 /* V4L2 core operation handlers */
 950 static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
 951         .g_chip_ident = tvp7002_g_chip_ident,
 952         .log_status = tvp7002_log_status,
 953         .g_ctrl = tvp7002_g_ctrl,
 954         .s_ctrl = tvp7002_s_ctrl,
 955         .queryctrl = tvp7002_queryctrl,
 956 #ifdef CONFIG_VIDEO_ADV_DEBUG
 957         .g_register = tvp7002_g_register,
 958         .s_register = tvp7002_s_register,
 959 #endif
 960 };
 961
 962 /* Specific video subsystem operation handlers */
 963 static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
 964         .enum_dv_presets = tvp7002_enum_dv_presets,
 965         .s_dv_preset = tvp7002_s_dv_preset,
 966         .query_dv_preset = tvp7002_query_dv_preset,
 967         .s_stream = tvp7002_s_stream,
 968         .g_mbus_fmt = tvp7002_mbus_fmt,
 969         .try_mbus_fmt = tvp7002_mbus_fmt,
 970         .s_mbus_fmt = tvp7002_mbus_fmt,
 971         .enum_mbus_fmt = tvp7002_enum_mbus_fmt,
 972 };
 973
 974 /* V4L2 top level operation handlers */
 975 static const struct v4l2_subdev_ops tvp7002_ops = {
 976         .core = &tvp7002_core_ops,
 977         .video = &tvp7002_video_ops,
 978 };
 979
 980 static struct tvp7002 tvp7002_dev = {
 981         .streaming = 0,
 982         .current_preset = tvp7002_presets,
 983         .gain = 0,
 984 };
 985
 986 /*
 987  * tvp7002_probe - Probe a TVP7002 device
 988  * @c: ptr to i2c_client struct
 989  * @id: ptr to i2c_device_id struct
 990  *
 991  * Initialize the TVP7002 device
 992  * Returns zero when successful, -EINVAL if register read fails or
 993  * -EIO if i2c access is not available.
 994  */
 995 static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
 996 {
 997         struct v4l2_subdev *sd;
 998         struct tvp7002 *device;
 999         struct v4l2_dv_preset preset;
1000         int polarity_a;
1001         int polarity_b;
1002         u8 revision;
1003
1004         int error;
1005
1006         /* Check if the adapter supports the needed features */
1007         if (!i2c_check_functionality(c->adapter,
1008                 I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1009                 return -EIO;
1010
1011         if (!c->dev.platform_data) {
1012                 v4l_err(c, "No platform data!!\n");
1013                 return -ENODEV;
1014         }
1015
1016         device = kmalloc(sizeof(struct tvp7002), GFP_KERNEL);
1017
1018         if (!device)
1019                 return -ENOMEM;
1020
1021         *device = tvp7002_dev;
1022         sd = &device->sd;
1023         device->pdata = c->dev.platform_data;
1024
1025         /* Tell v4l2 the device is ready */
1026         v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
1027         v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n",
1028                                         c->addr, c->adapter->name);
1029
1030         error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
1031         if (error < 0)
1032                 goto found_error;
1033
1034         /* Get revision number */
1035         v4l2_info(sd, "Rev. %02x detected.\n", revision);
1036         if (revision != 0x02)
1037                 v4l2_info(sd, "Unknown revision detected.\n");
1038
1039         /* Initializes TVP7002 to its default values */
1040         error = tvp7002_write_inittab(sd, tvp7002_init_default);
1041
1042         if (error < 0)
1043                 goto found_error;
1044
1045         /* Set polarity information after registers have been set */
1046         polarity_a = 0x20 | device->pdata->hs_polarity << 5
1047                         | device->pdata->vs_polarity << 2;
1048         error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a);
1049         if (error < 0)
1050                 goto found_error;
1051
1052         polarity_b = 0x01  | device->pdata->fid_polarity << 2
1053                         | device->pdata->sog_polarity << 1
1054                         | device->pdata->clk_polarity;
1055         error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b);
1056         if (error < 0)
1057                 goto found_error;
1058
1059         /* Set registers according to default video mode */
1060         preset.preset = device->current_preset->preset;
1061         error = tvp7002_s_dv_preset(sd, &preset);
1062
1063 found_error:
1064         if (error < 0)
1065                 kfree(device);
1066
1067         return error;
1068 }
1069
1070 /*
1071  * tvp7002_remove - Remove TVP7002 device support
1072  * @c: ptr to i2c_client struct
1073  *
1074  * Reset the TVP7002 device
1075  * Returns zero.
1076  */
1077 static int tvp7002_remove(struct i2c_client *c)
1078 {
1079         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1080         struct tvp7002 *device = to_tvp7002(sd);
1081
1082         v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
1083                                 "on address 0x%x\n", c->addr);
1084
1085         v4l2_device_unregister_subdev(sd);
1086         kfree(device);
1087         return 0;
1088 }
1089
1090 /* I2C Device ID table */
1091 static const struct i2c_device_id tvp7002_id[] = {
1092         { "tvp7002", 0 },
1093         { }
1094 };
1095 MODULE_DEVICE_TABLE(i2c, tvp7002_id);
1096
1097 /* I2C driver data */
1098 static struct i2c_driver tvp7002_driver = {
1099         .driver = {
1100                 .owner = THIS_MODULE,
1101                 .name = TVP7002_MODULE_NAME,
1102         },
1103         .probe = tvp7002_probe,
1104         .remove = tvp7002_remove,
1105         .id_table = tvp7002_id,
1106 };
1107
1108 /*
1109  * tvp7002_init - Initialize driver via I2C interface
1110  *
1111  * Register the TVP7002 driver.
1112  * Return 0 on success or error code on failure.
1113  */
1114 static int __init tvp7002_init(void)
1115 {
1116         return i2c_add_driver(&tvp7002_driver);
1117 }
1118
1119 /*
1120  * tvp7002_exit - Remove driver via I2C interface
1121  *
1122  * Unregister the TVP7002 driver.
1123  * Returns nothing.
1124  */
1125 static void __exit tvp7002_exit(void)
1126 {
1127         i2c_del_driver(&tvp7002_driver);
1128 }
1129
1130 module_init(tvp7002_init);
1131 module_exit(tvp7002_exit);