Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/slab.h> |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 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> |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 35 | #include <media/v4l2-ctrls.h> |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 36 | #include "tvp7002_reg.h" |
| 37 | |
| 38 | MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); |
| 39 | MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>"); |
| 40 | MODULE_LICENSE("GPL"); |
| 41 | |
| 42 | /* Module Name */ |
| 43 | #define TVP7002_MODULE_NAME "tvp7002" |
| 44 | |
| 45 | /* I2C retry attempts */ |
| 46 | #define I2C_RETRY_COUNT (5) |
| 47 | |
| 48 | /* End of registers */ |
| 49 | #define TVP7002_EOR 0x5c |
| 50 | |
| 51 | /* Read write definition for registers */ |
| 52 | #define TVP7002_READ 0 |
| 53 | #define TVP7002_WRITE 1 |
| 54 | #define TVP7002_RESERVED 2 |
| 55 | |
| 56 | /* Interlaced vs progressive mask and shift */ |
| 57 | #define TVP7002_IP_SHIFT 5 |
| 58 | #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) |
| 59 | |
| 60 | /* Shift for CPL and LPF registers */ |
| 61 | #define TVP7002_CL_SHIFT 8 |
| 62 | #define TVP7002_CL_MASK 0x0f |
| 63 | |
| 64 | /* Debug functions */ |
| 65 | static int debug; |
| 66 | module_param(debug, bool, 0644); |
| 67 | MODULE_PARM_DESC(debug, "Debug level (0-2)"); |
| 68 | |
| 69 | /* Structure for register values */ |
| 70 | struct i2c_reg_value { |
| 71 | u8 reg; |
| 72 | u8 value; |
| 73 | u8 type; |
| 74 | }; |
| 75 | |
| 76 | /* |
| 77 | * Register default values (according to tvp7002 datasheet) |
| 78 | * In the case of read-only registers, the value (0xff) is |
| 79 | * never written. R/W functionality is controlled by the |
| 80 | * writable bit in the register struct definition. |
| 81 | */ |
| 82 | static const struct i2c_reg_value tvp7002_init_default[] = { |
| 83 | { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, |
| 84 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, |
| 85 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, |
| 86 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, |
| 87 | { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, |
| 88 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 89 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 90 | { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, |
| 91 | { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 92 | { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 93 | { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 94 | { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 95 | { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 96 | { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 97 | { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, |
| 98 | { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, |
| 99 | { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, |
| 100 | { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, |
| 101 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, |
| 102 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 103 | { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, |
| 104 | { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, |
| 105 | { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, |
| 106 | { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, |
| 107 | { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, |
| 108 | { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, |
| 109 | { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, |
| 110 | { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, |
| 111 | { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, |
| 112 | { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, |
| 113 | { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 114 | { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 115 | { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 116 | { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, |
| 117 | { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, |
| 118 | { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 119 | { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 120 | { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 121 | { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, |
| 122 | { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, |
| 123 | { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, |
| 124 | { 0x29, 0x08, TVP7002_RESERVED }, |
| 125 | { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, |
| 126 | /* PWR_CTL is controlled only by the probe and reset functions */ |
| 127 | { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, |
| 128 | { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, |
| 129 | { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, |
| 130 | { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, |
| 131 | { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, |
| 132 | { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, |
| 133 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 134 | { 0x32, 0x18, TVP7002_RESERVED }, |
| 135 | { 0x33, 0x60, TVP7002_RESERVED }, |
| 136 | { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, |
| 137 | { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, |
| 138 | { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, |
| 139 | { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, |
| 140 | { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, |
| 141 | { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, |
| 142 | { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, |
| 143 | { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, |
| 144 | { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, |
| 145 | { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, |
| 146 | { 0x3e, 0x60, TVP7002_RESERVED }, |
| 147 | { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, |
| 148 | { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, |
| 149 | { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, |
| 150 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 151 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, |
| 152 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 153 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 154 | { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, |
| 155 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 156 | { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 157 | { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 158 | { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, |
| 159 | { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, |
| 160 | { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, |
| 161 | { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, |
| 162 | { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, |
| 163 | { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, |
| 164 | { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, |
| 165 | { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, |
| 166 | { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, |
| 167 | { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, |
| 168 | { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, |
| 169 | { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, |
| 170 | { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, |
| 171 | { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, |
| 172 | { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, |
| 173 | { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, |
| 174 | { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, |
| 175 | { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, |
| 176 | /* This signals end of register values */ |
| 177 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 178 | }; |
| 179 | |
| 180 | /* Register parameters for 480P */ |
| 181 | static const struct i2c_reg_value tvp7002_parms_480P[] = { |
| 182 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, |
Rajashekhara, Sudhakar | 560afa7 | 2010-07-28 05:47:48 -0300 | [diff] [blame] | 183 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE }, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 184 | { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, |
| 185 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 186 | { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, |
| 187 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 188 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, |
| 189 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 190 | { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, |
| 191 | { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, |
| 192 | { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, |
| 193 | { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, |
| 194 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, |
| 195 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, |
| 196 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, |
| 197 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, |
| 198 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, |
| 199 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 200 | }; |
| 201 | |
| 202 | /* Register parameters for 576P */ |
| 203 | static const struct i2c_reg_value tvp7002_parms_576P[] = { |
| 204 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, |
| 205 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, |
| 206 | { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, |
| 207 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 208 | { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, |
| 209 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 210 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, |
| 211 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 212 | { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 213 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 214 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 215 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 216 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, |
| 217 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, |
| 218 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, |
| 219 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, |
| 220 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, |
| 221 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 222 | }; |
| 223 | |
| 224 | /* Register parameters for 1080I60 */ |
| 225 | static const struct i2c_reg_value tvp7002_parms_1080I60[] = { |
| 226 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, |
Rajashekhara, Sudhakar | 560afa7 | 2010-07-28 05:47:48 -0300 | [diff] [blame] | 227 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 228 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 229 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 230 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 231 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 232 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 233 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 234 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 235 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 236 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 237 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 238 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 239 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 240 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 241 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 242 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 243 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 244 | }; |
| 245 | |
| 246 | /* Register parameters for 1080P60 */ |
| 247 | static const struct i2c_reg_value tvp7002_parms_1080P60[] = { |
| 248 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, |
Rajashekhara, Sudhakar | 560afa7 | 2010-07-28 05:47:48 -0300 | [diff] [blame] | 249 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 250 | { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, |
| 251 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 252 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 253 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 254 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 255 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 256 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 257 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 258 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 259 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 260 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 261 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 262 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 263 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 264 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 265 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 266 | }; |
| 267 | |
| 268 | /* Register parameters for 1080I50 */ |
| 269 | static const struct i2c_reg_value tvp7002_parms_1080I50[] = { |
| 270 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, |
| 271 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, |
| 272 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 273 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 274 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 275 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 276 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 277 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 278 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 279 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 280 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 281 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 282 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 283 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 284 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 285 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 286 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 287 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 288 | }; |
| 289 | |
| 290 | /* Register parameters for 720P60 */ |
| 291 | static const struct i2c_reg_value tvp7002_parms_720P60[] = { |
| 292 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, |
Rajashekhara, Sudhakar | 560afa7 | 2010-07-28 05:47:48 -0300 | [diff] [blame] | 293 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 294 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, |
| 295 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, |
| 296 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, |
| 297 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 298 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, |
| 299 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, |
| 300 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 301 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 302 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 303 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 304 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 305 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 306 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 307 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, |
| 308 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 309 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 310 | }; |
| 311 | |
| 312 | /* Register parameters for 720P50 */ |
| 313 | static const struct i2c_reg_value tvp7002_parms_720P50[] = { |
| 314 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, |
Rajashekhara, Sudhakar | 560afa7 | 2010-07-28 05:47:48 -0300 | [diff] [blame] | 315 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE }, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 316 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 317 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, |
| 318 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, |
| 319 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 320 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, |
| 321 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, |
| 322 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 323 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 324 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 325 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 326 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 327 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 328 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 329 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 330 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 331 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 332 | }; |
| 333 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 334 | /* Preset definition for handling device operation */ |
| 335 | struct tvp7002_preset_definition { |
| 336 | u32 preset; |
| 337 | const struct i2c_reg_value *p_settings; |
| 338 | enum v4l2_colorspace color_space; |
| 339 | enum v4l2_field scanmode; |
| 340 | u16 progressive; |
| 341 | u16 lines_per_frame; |
| 342 | u16 cpl_min; |
| 343 | u16 cpl_max; |
| 344 | }; |
| 345 | |
| 346 | /* Struct list for digital video presets */ |
| 347 | static const struct tvp7002_preset_definition tvp7002_presets[] = { |
| 348 | { |
| 349 | V4L2_DV_720P60, |
| 350 | tvp7002_parms_720P60, |
| 351 | V4L2_COLORSPACE_REC709, |
| 352 | V4L2_FIELD_NONE, |
| 353 | 1, |
| 354 | 0x2EE, |
| 355 | 135, |
| 356 | 153 |
| 357 | }, |
| 358 | { |
| 359 | V4L2_DV_1080I60, |
| 360 | tvp7002_parms_1080I60, |
| 361 | V4L2_COLORSPACE_REC709, |
| 362 | V4L2_FIELD_INTERLACED, |
| 363 | 0, |
| 364 | 0x465, |
| 365 | 181, |
| 366 | 205 |
| 367 | }, |
| 368 | { |
| 369 | V4L2_DV_1080I50, |
| 370 | tvp7002_parms_1080I50, |
| 371 | V4L2_COLORSPACE_REC709, |
| 372 | V4L2_FIELD_INTERLACED, |
| 373 | 0, |
| 374 | 0x465, |
| 375 | 217, |
| 376 | 245 |
| 377 | }, |
| 378 | { |
| 379 | V4L2_DV_720P50, |
| 380 | tvp7002_parms_720P50, |
| 381 | V4L2_COLORSPACE_REC709, |
| 382 | V4L2_FIELD_NONE, |
| 383 | 1, |
| 384 | 0x2EE, |
| 385 | 163, |
| 386 | 183 |
| 387 | }, |
| 388 | { |
| 389 | V4L2_DV_1080P60, |
| 390 | tvp7002_parms_1080P60, |
| 391 | V4L2_COLORSPACE_REC709, |
| 392 | V4L2_FIELD_NONE, |
| 393 | 1, |
| 394 | 0x465, |
| 395 | 90, |
| 396 | 102 |
| 397 | }, |
| 398 | { |
| 399 | V4L2_DV_480P59_94, |
| 400 | tvp7002_parms_480P, |
| 401 | V4L2_COLORSPACE_SMPTE170M, |
| 402 | V4L2_FIELD_NONE, |
| 403 | 1, |
| 404 | 0x20D, |
| 405 | 0xffff, |
| 406 | 0xffff |
| 407 | }, |
| 408 | { |
| 409 | V4L2_DV_576P50, |
| 410 | tvp7002_parms_576P, |
| 411 | V4L2_COLORSPACE_SMPTE170M, |
| 412 | V4L2_FIELD_NONE, |
| 413 | 1, |
| 414 | 0x271, |
| 415 | 0xffff, |
| 416 | 0xffff |
| 417 | } |
| 418 | }; |
| 419 | |
| 420 | #define NUM_PRESETS ARRAY_SIZE(tvp7002_presets) |
| 421 | |
| 422 | /* Device definition */ |
| 423 | struct tvp7002 { |
| 424 | struct v4l2_subdev sd; |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 425 | struct v4l2_ctrl_handler hdl; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 426 | const struct tvp7002_config *pdata; |
| 427 | |
| 428 | int ver; |
| 429 | int streaming; |
| 430 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 431 | const struct tvp7002_preset_definition *current_preset; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 432 | }; |
| 433 | |
| 434 | /* |
| 435 | * to_tvp7002 - Obtain device handler TVP7002 |
| 436 | * @sd: ptr to v4l2_subdev struct |
| 437 | * |
| 438 | * Returns device handler tvp7002. |
| 439 | */ |
| 440 | static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) |
| 441 | { |
| 442 | return container_of(sd, struct tvp7002, sd); |
| 443 | } |
| 444 | |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 445 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
| 446 | { |
| 447 | return &container_of(ctrl->handler, struct tvp7002, hdl)->sd; |
| 448 | } |
| 449 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 450 | /* |
| 451 | * tvp7002_read - Read a value from a register in an TVP7002 |
| 452 | * @sd: ptr to v4l2_subdev struct |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 453 | * @addr: TVP7002 register address |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 454 | * @dst: pointer to 8-bit destination |
| 455 | * |
| 456 | * Returns value read if successful, or non-zero (-1) otherwise. |
| 457 | */ |
| 458 | static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) |
| 459 | { |
| 460 | struct i2c_client *c = v4l2_get_subdevdata(sd); |
| 461 | int retry; |
| 462 | int error; |
| 463 | |
| 464 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { |
| 465 | error = i2c_smbus_read_byte_data(c, addr); |
| 466 | |
| 467 | if (error >= 0) { |
| 468 | *dst = (u8)error; |
| 469 | return 0; |
| 470 | } |
| 471 | |
| 472 | msleep_interruptible(10); |
| 473 | } |
| 474 | v4l2_err(sd, "TVP7002 read error %d\n", error); |
| 475 | return error; |
| 476 | } |
| 477 | |
| 478 | /* |
| 479 | * tvp7002_read_err() - Read a register value with error code |
| 480 | * @sd: pointer to standard V4L2 sub-device structure |
| 481 | * @reg: destination register |
| 482 | * @val: value to be read |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 483 | * @err: pointer to error value |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 484 | * |
| 485 | * Read a value in a register and save error value in pointer. |
| 486 | * Also update the register table if successful |
| 487 | */ |
| 488 | static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, |
| 489 | u8 *dst, int *err) |
| 490 | { |
| 491 | if (!*err) |
| 492 | *err = tvp7002_read(sd, reg, dst); |
| 493 | } |
| 494 | |
| 495 | /* |
| 496 | * tvp7002_write() - Write a value to a register in TVP7002 |
| 497 | * @sd: ptr to v4l2_subdev struct |
| 498 | * @addr: TVP7002 register address |
| 499 | * @value: value to be written to the register |
| 500 | * |
| 501 | * Write a value to a register in an TVP7002 decoder device. |
| 502 | * Returns zero if successful, or non-zero otherwise. |
| 503 | */ |
| 504 | static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) |
| 505 | { |
| 506 | struct i2c_client *c; |
| 507 | int retry; |
| 508 | int error; |
| 509 | |
| 510 | c = v4l2_get_subdevdata(sd); |
| 511 | |
| 512 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { |
| 513 | error = i2c_smbus_write_byte_data(c, addr, value); |
| 514 | |
| 515 | if (error >= 0) |
| 516 | return 0; |
| 517 | |
| 518 | v4l2_warn(sd, "Write: retry ... %d\n", retry); |
| 519 | msleep_interruptible(10); |
| 520 | } |
| 521 | v4l2_err(sd, "TVP7002 write error %d\n", error); |
| 522 | return error; |
| 523 | } |
| 524 | |
| 525 | /* |
| 526 | * tvp7002_write_err() - Write a register value with error code |
| 527 | * @sd: pointer to standard V4L2 sub-device structure |
| 528 | * @reg: destination register |
| 529 | * @val: value to be written |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 530 | * @err: pointer to error value |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 531 | * |
| 532 | * Write a value in a register and save error value in pointer. |
| 533 | * Also update the register table if successful |
| 534 | */ |
| 535 | static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, |
| 536 | u8 val, int *err) |
| 537 | { |
| 538 | if (!*err) |
| 539 | *err = tvp7002_write(sd, reg, val); |
| 540 | } |
| 541 | |
| 542 | /* |
| 543 | * tvp7002_g_chip_ident() - Get chip identification number |
| 544 | * @sd: ptr to v4l2_subdev struct |
| 545 | * @chip: ptr to v4l2_dbg_chip_ident struct |
| 546 | * |
| 547 | * Obtains the chip's identification number. |
| 548 | * Returns zero or -EINVAL if read operation fails. |
| 549 | */ |
| 550 | static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, |
| 551 | struct v4l2_dbg_chip_ident *chip) |
| 552 | { |
| 553 | u8 rev; |
| 554 | int error; |
| 555 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 556 | |
| 557 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev); |
| 558 | |
| 559 | if (error < 0) |
| 560 | return error; |
| 561 | |
| 562 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev); |
| 563 | } |
| 564 | |
| 565 | /* |
| 566 | * tvp7002_write_inittab() - Write initialization values |
| 567 | * @sd: ptr to v4l2_subdev struct |
| 568 | * @regs: ptr to i2c_reg_value struct |
| 569 | * |
| 570 | * Write initialization values. |
| 571 | * Returns zero or -EINVAL if read operation fails. |
| 572 | */ |
| 573 | static int tvp7002_write_inittab(struct v4l2_subdev *sd, |
| 574 | const struct i2c_reg_value *regs) |
| 575 | { |
| 576 | int error = 0; |
| 577 | |
| 578 | /* Initialize the first (defined) registers */ |
| 579 | while (TVP7002_EOR != regs->reg) { |
| 580 | if (TVP7002_WRITE == regs->type) |
| 581 | tvp7002_write_err(sd, regs->reg, regs->value, &error); |
| 582 | regs++; |
| 583 | } |
| 584 | |
| 585 | return error; |
| 586 | } |
| 587 | |
| 588 | /* |
| 589 | * tvp7002_s_dv_preset() - Set digital video preset |
| 590 | * @sd: ptr to v4l2_subdev struct |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 591 | * @dv_preset: ptr to v4l2_dv_preset struct |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 592 | * |
| 593 | * Set the digital video preset for a TVP7002 decoder device. |
| 594 | * Returns zero when successful or -EINVAL if register access fails. |
| 595 | */ |
| 596 | static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, |
| 597 | struct v4l2_dv_preset *dv_preset) |
| 598 | { |
| 599 | struct tvp7002 *device = to_tvp7002(sd); |
| 600 | u32 preset; |
| 601 | int i; |
| 602 | |
| 603 | for (i = 0; i < NUM_PRESETS; i++) { |
| 604 | preset = tvp7002_presets[i].preset; |
| 605 | if (preset == dv_preset->preset) { |
| 606 | device->current_preset = &tvp7002_presets[i]; |
| 607 | return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings); |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | return -EINVAL; |
| 612 | } |
| 613 | |
| 614 | /* |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 615 | * tvp7002_s_ctrl() - Set a control |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 616 | * @ctrl: ptr to v4l2_ctrl struct |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 617 | * |
| 618 | * Set a control in TVP7002 decoder device. |
| 619 | * Returns zero when successful or -EINVAL if register access fails. |
| 620 | */ |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 621 | static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl) |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 622 | { |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 623 | struct v4l2_subdev *sd = to_sd(ctrl); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 624 | int error = 0; |
| 625 | |
| 626 | switch (ctrl->id) { |
| 627 | case V4L2_CID_GAIN: |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 628 | tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error); |
| 629 | tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error); |
| 630 | tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error); |
| 631 | return error; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 632 | } |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 633 | return -EINVAL; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | /* |
Hans Verkuil | db7b546 | 2010-05-09 07:07:35 -0300 | [diff] [blame] | 637 | * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt |
| 638 | * @sd: pointer to standard V4L2 sub-device structure |
| 639 | * @f: pointer to mediabus format structure |
| 640 | * |
| 641 | * Negotiate the image capture size and mediabus format. |
| 642 | * There is only one possible format, so this single function works for |
| 643 | * get, set and try. |
| 644 | */ |
| 645 | static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) |
| 646 | { |
| 647 | struct tvp7002 *device = to_tvp7002(sd); |
| 648 | struct v4l2_dv_enum_preset e_preset; |
| 649 | int error; |
| 650 | |
| 651 | /* Calculate height and width based on current standard */ |
| 652 | error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset); |
| 653 | if (error) |
| 654 | return error; |
| 655 | |
| 656 | f->width = e_preset.width; |
| 657 | f->height = e_preset.height; |
| 658 | f->code = V4L2_MBUS_FMT_YUYV10_1X20; |
| 659 | f->field = device->current_preset->scanmode; |
| 660 | f->colorspace = device->current_preset->color_space; |
| 661 | |
| 662 | v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d", |
| 663 | f->width, f->height); |
| 664 | return 0; |
| 665 | } |
| 666 | |
| 667 | /* |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 668 | * tvp7002_query_dv_preset() - query DV preset |
| 669 | * @sd: pointer to standard V4L2 sub-device structure |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 670 | * @qpreset: standard V4L2 v4l2_dv_preset structure |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 671 | * |
| 672 | * Returns the current DV preset by TVP7002. If no active input is |
| 673 | * detected, returns -EINVAL |
| 674 | */ |
| 675 | static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, |
| 676 | struct v4l2_dv_preset *qpreset) |
| 677 | { |
| 678 | const struct tvp7002_preset_definition *presets = tvp7002_presets; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 679 | struct tvp7002 *device; |
| 680 | u8 progressive; |
| 681 | u32 lpfr; |
| 682 | u32 cpln; |
| 683 | int error = 0; |
| 684 | u8 lpf_lsb; |
| 685 | u8 lpf_msb; |
| 686 | u8 cpl_lsb; |
| 687 | u8 cpl_msb; |
| 688 | int index; |
| 689 | |
| 690 | device = to_tvp7002(sd); |
| 691 | |
| 692 | /* Read standards from device registers */ |
| 693 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); |
| 694 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); |
| 695 | |
| 696 | if (error < 0) |
| 697 | return error; |
| 698 | |
| 699 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); |
| 700 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); |
| 701 | |
| 702 | if (error < 0) |
| 703 | return error; |
| 704 | |
| 705 | /* Get lines per frame, clocks per line and interlaced/progresive */ |
| 706 | lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT); |
| 707 | cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); |
| 708 | progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; |
| 709 | |
| 710 | /* Do checking of video modes */ |
| 711 | for (index = 0; index < NUM_PRESETS; index++, presets++) |
| 712 | if (lpfr == presets->lines_per_frame && |
| 713 | progressive == presets->progressive) { |
| 714 | if (presets->cpl_min == 0xffff) |
| 715 | break; |
| 716 | if (cpln >= presets->cpl_min && cpln <= presets->cpl_max) |
| 717 | break; |
| 718 | } |
| 719 | |
| 720 | if (index == NUM_PRESETS) { |
Hans Verkuil | cf19cd3 | 2010-05-01 08:23:07 -0300 | [diff] [blame] | 721 | v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n", |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 722 | lpfr, cpln); |
Hans Verkuil | cf19cd3 | 2010-05-01 08:23:07 -0300 | [diff] [blame] | 723 | /* Could not detect a signal, so return the 'invalid' preset */ |
| 724 | qpreset->preset = V4L2_DV_INVALID; |
| 725 | return 0; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 726 | } |
| 727 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 728 | /* Set values in found preset */ |
| 729 | qpreset->preset = presets->preset; |
| 730 | |
| 731 | /* Update lines per frame and clocks per line info */ |
Hans Verkuil | cf19cd3 | 2010-05-01 08:23:07 -0300 | [diff] [blame] | 732 | v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 733 | return 0; |
| 734 | } |
| 735 | |
| 736 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 737 | /* |
| 738 | * tvp7002_g_register() - Get the value of a register |
| 739 | * @sd: ptr to v4l2_subdev struct |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 740 | * @reg: ptr to v4l2_dbg_register struct |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 741 | * |
| 742 | * Get the value of a TVP7002 decoder device register. |
| 743 | * Returns zero when successful, -EINVAL if register read fails or |
| 744 | * access to I2C client fails, -EPERM if the call is not allowed |
Justin P. Mattock | eb78bd7 | 2010-12-30 15:08:03 -0800 | [diff] [blame] | 745 | * by disabled CAP_SYS_ADMIN. |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 746 | */ |
| 747 | static int tvp7002_g_register(struct v4l2_subdev *sd, |
| 748 | struct v4l2_dbg_register *reg) |
| 749 | { |
| 750 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 751 | u8 val; |
| 752 | int ret; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 753 | |
| 754 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
| 755 | return -EINVAL; |
| 756 | if (!capable(CAP_SYS_ADMIN)) |
| 757 | return -EPERM; |
| 758 | |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 759 | ret = tvp7002_read(sd, reg->reg & 0xff, &val); |
| 760 | reg->val = val; |
| 761 | return ret; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | /* |
| 765 | * tvp7002_s_register() - set a control |
| 766 | * @sd: ptr to v4l2_subdev struct |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 767 | * @reg: ptr to v4l2_dbg_register struct |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 768 | * |
| 769 | * Get the value of a TVP7002 decoder device register. |
| 770 | * Returns zero when successful, -EINVAL if register read fails or |
| 771 | * -EPERM if call not allowed. |
| 772 | */ |
| 773 | static int tvp7002_s_register(struct v4l2_subdev *sd, |
| 774 | struct v4l2_dbg_register *reg) |
| 775 | { |
| 776 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 777 | |
| 778 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
| 779 | return -EINVAL; |
| 780 | if (!capable(CAP_SYS_ADMIN)) |
| 781 | return -EPERM; |
| 782 | |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 783 | return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 784 | } |
| 785 | #endif |
| 786 | |
| 787 | /* |
Hans Verkuil | db7b546 | 2010-05-09 07:07:35 -0300 | [diff] [blame] | 788 | * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats |
| 789 | * @sd: pointer to standard V4L2 sub-device structure |
| 790 | * @index: format index |
| 791 | * @code: pointer to mediabus format |
| 792 | * |
| 793 | * Enumerate supported mediabus formats. |
| 794 | */ |
| 795 | |
| 796 | static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, |
| 797 | enum v4l2_mbus_pixelcode *code) |
| 798 | { |
| 799 | /* Check requested format index is within range */ |
| 800 | if (index) |
| 801 | return -EINVAL; |
| 802 | *code = V4L2_MBUS_FMT_YUYV10_1X20; |
| 803 | return 0; |
| 804 | } |
| 805 | |
| 806 | /* |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 807 | * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream |
| 808 | * @sd: pointer to standard V4L2 sub-device structure |
| 809 | * @enable: streaming enable or disable |
| 810 | * |
| 811 | * Sets streaming to enable or disable, if possible. |
| 812 | */ |
| 813 | static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) |
| 814 | { |
| 815 | struct tvp7002 *device = to_tvp7002(sd); |
| 816 | int error = 0; |
| 817 | |
| 818 | if (device->streaming == enable) |
| 819 | return 0; |
| 820 | |
| 821 | if (enable) { |
| 822 | /* Set output state on (low impedance means stream on) */ |
| 823 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00); |
| 824 | device->streaming = enable; |
| 825 | } else { |
| 826 | /* Set output state off (high impedance means stream off) */ |
| 827 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03); |
| 828 | if (error) |
| 829 | v4l2_dbg(1, debug, sd, "Unable to stop streaming\n"); |
| 830 | |
| 831 | device->streaming = enable; |
| 832 | } |
| 833 | |
| 834 | return error; |
| 835 | } |
| 836 | |
| 837 | /* |
| 838 | * tvp7002_log_status() - Print information about register settings |
| 839 | * @sd: ptr to v4l2_subdev struct |
| 840 | * |
| 841 | * Log register values of a TVP7002 decoder device. |
| 842 | * Returns zero or -EINVAL if read operation fails. |
| 843 | */ |
| 844 | static int tvp7002_log_status(struct v4l2_subdev *sd) |
| 845 | { |
| 846 | const struct tvp7002_preset_definition *presets = tvp7002_presets; |
| 847 | struct tvp7002 *device = to_tvp7002(sd); |
| 848 | struct v4l2_dv_enum_preset e_preset; |
| 849 | struct v4l2_dv_preset detected; |
| 850 | int i; |
| 851 | |
| 852 | detected.preset = V4L2_DV_INVALID; |
| 853 | /* Find my current standard*/ |
| 854 | tvp7002_query_dv_preset(sd, &detected); |
| 855 | |
| 856 | /* Print standard related code values */ |
| 857 | for (i = 0; i < NUM_PRESETS; i++, presets++) |
| 858 | if (presets->preset == detected.preset) |
| 859 | break; |
| 860 | |
| 861 | if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset)) |
| 862 | return -EINVAL; |
| 863 | |
| 864 | v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name); |
| 865 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); |
| 866 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); |
| 867 | if (i == NUM_PRESETS) { |
| 868 | v4l2_info(sd, "Detected DV Preset: None\n"); |
| 869 | } else { |
| 870 | if (v4l_fill_dv_preset_info(presets->preset, &e_preset)) |
| 871 | return -EINVAL; |
| 872 | v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name); |
| 873 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); |
| 874 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); |
| 875 | } |
| 876 | v4l2_info(sd, "Streaming enabled: %s\n", |
| 877 | device->streaming ? "yes" : "no"); |
| 878 | |
| 879 | /* Print the current value of the gain control */ |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 880 | v4l2_ctrl_handler_log_status(&device->hdl, sd->name); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 881 | |
| 882 | return 0; |
| 883 | } |
| 884 | |
Mats Randgaard | 37eb446 | 2010-05-05 05:21:24 -0300 | [diff] [blame] | 885 | /* |
| 886 | * tvp7002_enum_dv_presets() - Enum supported digital video formats |
| 887 | * @sd: pointer to standard V4L2 sub-device structure |
| 888 | * @preset: pointer to format struct |
| 889 | * |
| 890 | * Enumerate supported digital video formats. |
| 891 | */ |
| 892 | static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd, |
| 893 | struct v4l2_dv_enum_preset *preset) |
| 894 | { |
| 895 | /* Check requested format index is within range */ |
| 896 | if (preset->index >= NUM_PRESETS) |
| 897 | return -EINVAL; |
| 898 | |
| 899 | return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset); |
| 900 | } |
| 901 | |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 902 | static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = { |
| 903 | .s_ctrl = tvp7002_s_ctrl, |
| 904 | }; |
| 905 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 906 | /* V4L2 core operation handlers */ |
| 907 | static const struct v4l2_subdev_core_ops tvp7002_core_ops = { |
| 908 | .g_chip_ident = tvp7002_g_chip_ident, |
| 909 | .log_status = tvp7002_log_status, |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 910 | .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, |
| 911 | .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, |
| 912 | .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, |
| 913 | .g_ctrl = v4l2_subdev_g_ctrl, |
| 914 | .s_ctrl = v4l2_subdev_s_ctrl, |
| 915 | .queryctrl = v4l2_subdev_queryctrl, |
| 916 | .querymenu = v4l2_subdev_querymenu, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 917 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 918 | .g_register = tvp7002_g_register, |
| 919 | .s_register = tvp7002_s_register, |
| 920 | #endif |
| 921 | }; |
| 922 | |
| 923 | /* Specific video subsystem operation handlers */ |
| 924 | static const struct v4l2_subdev_video_ops tvp7002_video_ops = { |
Mats Randgaard | 37eb446 | 2010-05-05 05:21:24 -0300 | [diff] [blame] | 925 | .enum_dv_presets = tvp7002_enum_dv_presets, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 926 | .s_dv_preset = tvp7002_s_dv_preset, |
| 927 | .query_dv_preset = tvp7002_query_dv_preset, |
| 928 | .s_stream = tvp7002_s_stream, |
Hans Verkuil | db7b546 | 2010-05-09 07:07:35 -0300 | [diff] [blame] | 929 | .g_mbus_fmt = tvp7002_mbus_fmt, |
| 930 | .try_mbus_fmt = tvp7002_mbus_fmt, |
| 931 | .s_mbus_fmt = tvp7002_mbus_fmt, |
| 932 | .enum_mbus_fmt = tvp7002_enum_mbus_fmt, |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 933 | }; |
| 934 | |
| 935 | /* V4L2 top level operation handlers */ |
| 936 | static const struct v4l2_subdev_ops tvp7002_ops = { |
| 937 | .core = &tvp7002_core_ops, |
| 938 | .video = &tvp7002_video_ops, |
| 939 | }; |
| 940 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 941 | /* |
| 942 | * tvp7002_probe - Probe a TVP7002 device |
Mats Randgaard | 6fa7dac | 2010-05-05 07:50:38 -0300 | [diff] [blame] | 943 | * @c: ptr to i2c_client struct |
| 944 | * @id: ptr to i2c_device_id struct |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 945 | * |
| 946 | * Initialize the TVP7002 device |
| 947 | * Returns zero when successful, -EINVAL if register read fails or |
| 948 | * -EIO if i2c access is not available. |
| 949 | */ |
| 950 | static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) |
| 951 | { |
| 952 | struct v4l2_subdev *sd; |
| 953 | struct tvp7002 *device; |
| 954 | struct v4l2_dv_preset preset; |
| 955 | int polarity_a; |
| 956 | int polarity_b; |
| 957 | u8 revision; |
| 958 | |
| 959 | int error; |
| 960 | |
| 961 | /* Check if the adapter supports the needed features */ |
| 962 | if (!i2c_check_functionality(c->adapter, |
| 963 | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) |
| 964 | return -EIO; |
| 965 | |
| 966 | if (!c->dev.platform_data) { |
| 967 | v4l_err(c, "No platform data!!\n"); |
| 968 | return -ENODEV; |
| 969 | } |
| 970 | |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 971 | device = kzalloc(sizeof(struct tvp7002), GFP_KERNEL); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 972 | |
| 973 | if (!device) |
| 974 | return -ENOMEM; |
| 975 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 976 | sd = &device->sd; |
| 977 | device->pdata = c->dev.platform_data; |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 978 | device->current_preset = tvp7002_presets; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 979 | |
| 980 | /* Tell v4l2 the device is ready */ |
| 981 | v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); |
| 982 | v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", |
| 983 | c->addr, c->adapter->name); |
| 984 | |
| 985 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); |
| 986 | if (error < 0) |
| 987 | goto found_error; |
| 988 | |
| 989 | /* Get revision number */ |
| 990 | v4l2_info(sd, "Rev. %02x detected.\n", revision); |
| 991 | if (revision != 0x02) |
| 992 | v4l2_info(sd, "Unknown revision detected.\n"); |
| 993 | |
| 994 | /* Initializes TVP7002 to its default values */ |
| 995 | error = tvp7002_write_inittab(sd, tvp7002_init_default); |
| 996 | |
| 997 | if (error < 0) |
| 998 | goto found_error; |
| 999 | |
| 1000 | /* Set polarity information after registers have been set */ |
| 1001 | polarity_a = 0x20 | device->pdata->hs_polarity << 5 |
| 1002 | | device->pdata->vs_polarity << 2; |
| 1003 | error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); |
| 1004 | if (error < 0) |
| 1005 | goto found_error; |
| 1006 | |
| 1007 | polarity_b = 0x01 | device->pdata->fid_polarity << 2 |
| 1008 | | device->pdata->sog_polarity << 1 |
| 1009 | | device->pdata->clk_polarity; |
| 1010 | error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); |
| 1011 | if (error < 0) |
| 1012 | goto found_error; |
| 1013 | |
| 1014 | /* Set registers according to default video mode */ |
| 1015 | preset.preset = device->current_preset->preset; |
| 1016 | error = tvp7002_s_dv_preset(sd, &preset); |
| 1017 | |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 1018 | v4l2_ctrl_handler_init(&device->hdl, 1); |
| 1019 | v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops, |
| 1020 | V4L2_CID_GAIN, 0, 255, 1, 0); |
| 1021 | sd->ctrl_handler = &device->hdl; |
| 1022 | if (device->hdl.error) { |
| 1023 | int err = device->hdl.error; |
| 1024 | |
| 1025 | v4l2_ctrl_handler_free(&device->hdl); |
| 1026 | kfree(device); |
| 1027 | return err; |
| 1028 | } |
| 1029 | v4l2_ctrl_handler_setup(&device->hdl); |
| 1030 | |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 1031 | found_error: |
| 1032 | if (error < 0) |
| 1033 | kfree(device); |
| 1034 | |
| 1035 | return error; |
| 1036 | } |
| 1037 | |
| 1038 | /* |
| 1039 | * tvp7002_remove - Remove TVP7002 device support |
| 1040 | * @c: ptr to i2c_client struct |
| 1041 | * |
| 1042 | * Reset the TVP7002 device |
| 1043 | * Returns zero. |
| 1044 | */ |
| 1045 | static int tvp7002_remove(struct i2c_client *c) |
| 1046 | { |
| 1047 | struct v4l2_subdev *sd = i2c_get_clientdata(c); |
| 1048 | struct tvp7002 *device = to_tvp7002(sd); |
| 1049 | |
| 1050 | v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" |
| 1051 | "on address 0x%x\n", c->addr); |
| 1052 | |
| 1053 | v4l2_device_unregister_subdev(sd); |
Hans Verkuil | 0eb73de | 2010-12-12 08:46:15 -0300 | [diff] [blame] | 1054 | v4l2_ctrl_handler_free(&device->hdl); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 1055 | kfree(device); |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
| 1059 | /* I2C Device ID table */ |
| 1060 | static const struct i2c_device_id tvp7002_id[] = { |
| 1061 | { "tvp7002", 0 }, |
| 1062 | { } |
| 1063 | }; |
| 1064 | MODULE_DEVICE_TABLE(i2c, tvp7002_id); |
| 1065 | |
| 1066 | /* I2C driver data */ |
| 1067 | static struct i2c_driver tvp7002_driver = { |
| 1068 | .driver = { |
| 1069 | .owner = THIS_MODULE, |
| 1070 | .name = TVP7002_MODULE_NAME, |
| 1071 | }, |
| 1072 | .probe = tvp7002_probe, |
| 1073 | .remove = tvp7002_remove, |
| 1074 | .id_table = tvp7002_id, |
| 1075 | }; |
| 1076 | |
| 1077 | /* |
| 1078 | * tvp7002_init - Initialize driver via I2C interface |
| 1079 | * |
| 1080 | * Register the TVP7002 driver. |
| 1081 | * Return 0 on success or error code on failure. |
| 1082 | */ |
| 1083 | static int __init tvp7002_init(void) |
| 1084 | { |
| 1085 | return i2c_add_driver(&tvp7002_driver); |
| 1086 | } |
| 1087 | |
| 1088 | /* |
| 1089 | * tvp7002_exit - Remove driver via I2C interface |
| 1090 | * |
| 1091 | * Unregister the TVP7002 driver. |
| 1092 | * Returns nothing. |
| 1093 | */ |
| 1094 | static void __exit tvp7002_exit(void) |
| 1095 | { |
| 1096 | i2c_del_driver(&tvp7002_driver); |
| 1097 | } |
| 1098 | |
| 1099 | module_init(tvp7002_init); |
| 1100 | module_exit(tvp7002_exit); |