/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics * Digitizer with Horizontal PLL registers * * Copyright (C) 2009 Texas Instruments Inc * Author: Santiago Nunez-Corrales * * This code is partially based upon the TVP5150 driver * written by Mauro Carvalho Chehab (mchehab@infradead.org), * the TVP514x driver written by Vaibhav Hiremath * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by * Muralidharan Karicheri and Snehaprabha Narnakaje (TI). * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include "tvp7002_reg.h" MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); MODULE_AUTHOR("Santiago Nunez-Corrales "); MODULE_LICENSE("GPL"); /* Module Name */ #define TVP7002_MODULE_NAME "tvp7002" /* I2C retry attempts */ #define I2C_RETRY_COUNT (5) /* End of registers */ #define TVP7002_EOR 0x5c /* Read write definition for registers */ #define TVP7002_READ 0 #define TVP7002_WRITE 1 #define TVP7002_RESERVED 2 /* Interlaced vs progressive mask and shift */ #define TVP7002_IP_SHIFT 5 #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) /* Shift for CPL and LPF registers */ #define TVP7002_CL_SHIFT 8 #define TVP7002_CL_MASK 0x0f /* Debug functions */ static int debug; module_param(debug, bool, 0644); MODULE_PARM_DESC(debug, "Debug level (0-2)"); /* Structure for register values */ struct i2c_reg_value { u8 reg; u8 value; u8 type; }; /* * Register default values (according to tvp7002 datasheet) * In the case of read-only registers, the value (0xff) is * never written. R/W functionality is controlled by the * writable bit in the register struct definition. */ static const struct i2c_reg_value tvp7002_init_default[] = { { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, { 0x29, 0x08, TVP7002_RESERVED }, { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, /* PWR_CTL is controlled only by the probe and reset functions */ { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c, TVP7002_WRITE }, { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { 0x32, 0x18, TVP7002_RESERVED }, { 0x33, 0x60, TVP7002_RESERVED }, { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, { 0x3e, 0x60, TVP7002_RESERVED }, { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, /* This signals end of register values */ { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 480P */ static const struct i2c_reg_value tvp7002_parms_480P[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 576P */ static const struct i2c_reg_value tvp7002_parms_576P[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 1080I60 */ static const struct i2c_reg_value tvp7002_parms_1080I60[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 1080P60 */ static const struct i2c_reg_value tvp7002_parms_1080P60[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 1080I50 */ static const struct i2c_reg_value tvp7002_parms_1080I50[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 720P60 */ static const struct i2c_reg_value tvp7002_parms_720P60[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Register parameters for 720P50 */ static const struct i2c_reg_value tvp7002_parms_720P50[] = { { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE }, { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, { TVP7002_EOR, 0xff, TVP7002_RESERVED } }; /* Preset definition for handling device operation */ struct tvp7002_preset_definition { u32 preset; const struct i2c_reg_value *p_settings; enum v4l2_colorspace color_space; enum v4l2_field scanmode; u16 progressive; u16 lines_per_frame; u16 cpl_min; u16 cpl_max; }; /* Struct list for digital video presets */ static const struct tvp7002_preset_definition tvp7002_presets[] = { { V4L2_DV_720P60, tvp7002_parms_720P60, V4L2_COLORSPACE_REC709, V4L2_FIELD_NONE, 1, 0x2EE, 135, 153 }, { V4L2_DV_1080I60, tvp7002_parms_1080I60, V4L2_COLORSPACE_REC709, V4L2_FIELD_INTERLACED, 0, 0x465, 181, 205 }, { V4L2_DV_1080I50, tvp7002_parms_1080I50, V4L2_COLORSPACE_REC709, V4L2_FIELD_INTERLACED, 0, 0x465, 217, 245 }, { V4L2_DV_720P50, tvp7002_parms_720P50, V4L2_COLORSPACE_REC709, V4L2_FIELD_NONE, 1, 0x2EE, 163, 183 }, { V4L2_DV_1080P60, tvp7002_parms_1080P60, V4L2_COLORSPACE_REC709, V4L2_FIELD_NONE, 1, 0x465, 90, 102 }, { V4L2_DV_480P59_94, tvp7002_parms_480P, V4L2_COLORSPACE_SMPTE170M, V4L2_FIELD_NONE, 1, 0x20D, 0xffff, 0xffff }, { V4L2_DV_576P50, tvp7002_parms_576P, V4L2_COLORSPACE_SMPTE170M, V4L2_FIELD_NONE, 1, 0x271, 0xffff, 0xffff } }; #define NUM_PRESETS ARRAY_SIZE(tvp7002_presets) /* Device definition */ struct tvp7002 { struct v4l2_subdev sd; struct v4l2_ctrl_handler hdl; const struct tvp7002_config *pdata; int ver; int streaming; const struct tvp7002_preset_definition *current_preset; }; /* * to_tvp7002 - Obtain device handler TVP7002 * @sd: ptr to v4l2_subdev struct * * Returns device handler tvp7002. */ static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) { return container_of(sd, struct tvp7002, sd); } static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) { return &container_of(ctrl->handler, struct tvp7002, hdl)->sd; } /* * tvp7002_read - Read a value from a register in an TVP7002 * @sd: ptr to v4l2_subdev struct * @addr: TVP7002 register address * @dst: pointer to 8-bit destination * * Returns value read if successful, or non-zero (-1) otherwise. */ static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) { struct i2c_client *c = v4l2_get_subdevdata(sd); int retry; int error; for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { error = i2c_smbus_read_byte_data(c, addr); if (error >= 0) { *dst = (u8)error; return 0; } msleep_interruptible(10); } v4l2_err(sd, "TVP7002 read error %d\n", error); return error; } /* * tvp7002_read_err() - Read a register value with error code * @sd: pointer to standard V4L2 sub-device structure * @reg: destination register * @val: value to be read * @err: pointer to error value * * Read a value in a register and save error value in pointer. * Also update the register table if successful */ static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, u8 *dst, int *err) { if (!*err) *err = tvp7002_read(sd, reg, dst); } /* * tvp7002_write() - Write a value to a register in TVP7002 * @sd: ptr to v4l2_subdev struct * @addr: TVP7002 register address * @value: value to be written to the register * * Write a value to a register in an TVP7002 decoder device. * Returns zero if successful, or non-zero otherwise. */ static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) { struct i2c_client *c; int retry; int error; c = v4l2_get_subdevdata(sd); for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { error = i2c_smbus_write_byte_data(c, addr, value); if (error >= 0) return 0; v4l2_warn(sd, "Write: retry ... %d\n", retry); msleep_interruptible(10); } v4l2_err(sd, "TVP7002 write error %d\n", error); return error; } /* * tvp7002_write_err() - Write a register value with error code * @sd: pointer to standard V4L2 sub-device structure * @reg: destination register * @val: value to be written * @err: pointer to error value * * Write a value in a register and save error value in pointer. * Also update the register table if successful */ static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, u8 val, int *err) { if (!*err) *err = tvp7002_write(sd, reg, val); } /* * tvp7002_g_chip_ident() - Get chip identification number * @sd: ptr to v4l2_subdev struct * @chip: ptr to v4l2_dbg_chip_ident struct * * Obtains the chip's identification number. * Returns zero or -EINVAL if read operation fails. */ static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) { u8 rev; int error; struct i2c_client *client = v4l2_get_subdevdata(sd); error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev); if (error < 0) return error; return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev); } /* * tvp7002_write_inittab() - Write initialization values * @sd: ptr to v4l2_subdev struct * @regs: ptr to i2c_reg_value struct * * Write initialization values. * Returns zero or -EINVAL if read operation fails. */ static int tvp7002_write_inittab(struct v4l2_subdev *sd, const struct i2c_reg_value *regs) { int error = 0; /* Initialize the first (defined) registers */ while (TVP7002_EOR != regs->reg) { if (TVP7002_WRITE == regs->type) tvp7002_write_err(sd, regs->reg, regs->value, &error); regs++; } return error; } /* * tvp7002_s_dv_preset() - Set digital video preset * @sd: ptr to v4l2_subdev struct * @dv_preset: ptr to v4l2_dv_preset struct * * Set the digital video preset for a TVP7002 decoder device. * Returns zero when successful or -EINVAL if register access fails. */ static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, struct v4l2_dv_preset *dv_preset) { struct tvp7002 *device = to_tvp7002(sd); u32 preset; int i; for (i = 0; i < NUM_PRESETS; i++) { preset = tvp7002_presets[i].preset; if (preset == dv_preset->preset) { device->current_preset = &tvp7002_presets[i]; return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings); } } return -EINVAL; } /* * tvp7002_s_ctrl() - Set a control * @ctrl: ptr to v4l2_ctrl struct * * Set a control in TVP7002 decoder device. * Returns zero when successful or -EINVAL if register access fails. */ static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); int error = 0; switch (ctrl->id) { case V4L2_CID_GAIN: tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error); tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error); tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error); return error; } return -EINVAL; } /* * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt * @sd: pointer to standard V4L2 sub-device structure * @f: pointer to mediabus format structure * * Negotiate the image capture size and mediabus format. * There is only one possible format, so this single function works for * get, set and try. */ static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) { struct tvp7002 *device = to_tvp7002(sd); struct v4l2_dv_enum_preset e_preset; int error; /* Calculate height and width based on current standard */ error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset); if (error) return error; f->width = e_preset.width; f->height = e_preset.height; f->code = V4L2_MBUS_FMT_YUYV10_1X20; f->field = device->current_preset->scanmode; f->colorspace = device->current_preset->color_space; v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d", f->width, f->height); return 0; } /* * tvp7002_query_dv_preset() - query DV preset * @sd: pointer to standard V4L2 sub-device structure * @qpreset: standard V4L2 v4l2_dv_preset structure * * Returns the current DV preset by TVP7002. If no active input is * detected, returns -EINVAL */ static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, struct v4l2_dv_preset *qpreset) { const struct tvp7002_preset_definition *presets = tvp7002_presets; struct tvp7002 *device; u8 progressive; u32 lpfr; u32 cpln; int error = 0; u8 lpf_lsb; u8 lpf_msb; u8 cpl_lsb; u8 cpl_msb; int index; /* Return invalid preset if no active input is detected */ qpreset->preset = V4L2_DV_INVALID; device = to_tvp7002(sd); /* Read standards from device registers */ tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); if (error < 0) return error; tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); if (error < 0) return error; /* Get lines per frame, clocks per line and interlaced/progresive */ lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT); cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; /* Do checking of video modes */ for (index = 0; index < NUM_PRESETS; index++, presets++) if (lpfr == presets->lines_per_frame && progressive == presets->progressive) { if (presets->cpl_min == 0xffff) break; if (cpln >= presets->cpl_min && cpln <= presets->cpl_max) break; } if (index == NUM_PRESETS) { v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n", lpfr, cpln); return 0; } /* Set values in found preset */ qpreset->preset = presets->preset; /* Update lines per frame and clocks per line info */ v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset); return 0; } #ifdef CONFIG_VIDEO_ADV_DEBUG /* * tvp7002_g_register() - Get the value of a register * @sd: ptr to v4l2_subdev struct * @reg: ptr to v4l2_dbg_register struct * * Get the value of a TVP7002 decoder device register. * Returns zero when successful, -EINVAL if register read fails or * access to I2C client fails, -EPERM if the call is not allowed * by disabled CAP_SYS_ADMIN. */ static int tvp7002_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { struct i2c_client *client = v4l2_get_subdevdata(sd); u8 val; int ret; if (!v4l2_chip_match_i2c_client(client, ®->match)) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EPERM; ret = tvp7002_read(sd, reg->reg & 0xff, &val); reg->val = val; return ret; } /* * tvp7002_s_register() - set a control * @sd: ptr to v4l2_subdev struct * @reg: ptr to v4l2_dbg_register struct * * Get the value of a TVP7002 decoder device register. * Returns zero when successful, -EINVAL if register read fails or * -EPERM if call not allowed. */ static int tvp7002_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { struct i2c_client *client = v4l2_get_subdevdata(sd); if (!v4l2_chip_match_i2c_client(client, ®->match)) return -EINVAL; if (!capable(CAP_SYS_ADMIN)) return -EPERM; return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); } #endif /* * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats * @sd: pointer to standard V4L2 sub-device structure * @index: format index * @code: pointer to mediabus format * * Enumerate supported mediabus formats. */ static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, enum v4l2_mbus_pixelcode *code) { /* Check requested format index is within range */ if (index) return -EINVAL; *code = V4L2_MBUS_FMT_YUYV10_1X20; return 0; } /* * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream * @sd: pointer to standard V4L2 sub-device structure * @enable: streaming enable or disable * * Sets streaming to enable or disable, if possible. */ static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) { struct tvp7002 *device = to_tvp7002(sd); int error = 0; if (device->streaming == enable) return 0; if (enable) { /* Set output state on (low impedance means stream on) */ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00); device->streaming = enable; } else { /* Set output state off (high impedance means stream off) */ error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03); if (error) v4l2_dbg(1, debug, sd, "Unable to stop streaming\n"); device->streaming = enable; } return error; } /* * tvp7002_log_status() - Print information about register settings * @sd: ptr to v4l2_subdev struct * * Log register values of a TVP7002 decoder device. * Returns zero or -EINVAL if read operation fails. */ static int tvp7002_log_status(struct v4l2_subdev *sd) { const struct tvp7002_preset_definition *presets = tvp7002_presets; struct tvp7002 *device = to_tvp7002(sd); struct v4l2_dv_enum_preset e_preset; struct v4l2_dv_preset detected; int i; detected.preset = V4L2_DV_INVALID; /* Find my current standard*/ tvp7002_query_dv_preset(sd, &detected); /* Print standard related code values */ for (i = 0; i < NUM_PRESETS; i++, presets++) if (presets->preset == detected.preset) break; if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset)) return -EINVAL; v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name); v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); if (i == NUM_PRESETS) { v4l2_info(sd, "Detected DV Preset: None\n"); } else { if (v4l_fill_dv_preset_info(presets->preset, &e_preset)) return -EINVAL; v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name); v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); } v4l2_info(sd, "Streaming enabled: %s\n", device->streaming ? "yes" : "no"); /* Print the current value of the gain control */ v4l2_ctrl_handler_log_status(&device->hdl, sd->name); return 0; } /* * tvp7002_enum_dv_presets() - Enum supported digital video formats * @sd: pointer to standard V4L2 sub-device structure * @preset: pointer to format struct * * Enumerate supported digital video formats. */ static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd, struct v4l2_dv_enum_preset *preset) { /* Check requested format index is within range */ if (preset->index >= NUM_PRESETS) return -EINVAL; return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset); } static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = { .s_ctrl = tvp7002_s_ctrl, }; /* V4L2 core operation handlers */ static const struct v4l2_subdev_core_ops tvp7002_core_ops = { .g_chip_ident = tvp7002_g_chip_ident, .log_status = tvp7002_log_status, .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, .g_ctrl = v4l2_subdev_g_ctrl, .s_ctrl = v4l2_subdev_s_ctrl, .queryctrl = v4l2_subdev_queryctrl, .querymenu = v4l2_subdev_querymenu, #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = tvp7002_g_register, .s_register = tvp7002_s_register, #endif }; /* Specific video subsystem operation handlers */ static const struct v4l2_subdev_video_ops tvp7002_video_ops = { .enum_dv_presets = tvp7002_enum_dv_presets, .s_dv_preset = tvp7002_s_dv_preset, .query_dv_preset = tvp7002_query_dv_preset, .s_stream = tvp7002_s_stream, .g_mbus_fmt = tvp7002_mbus_fmt, .try_mbus_fmt = tvp7002_mbus_fmt, .s_mbus_fmt = tvp7002_mbus_fmt, .enum_mbus_fmt = tvp7002_enum_mbus_fmt, }; /* V4L2 top level operation handlers */ static const struct v4l2_subdev_ops tvp7002_ops = { .core = &tvp7002_core_ops, .video = &tvp7002_video_ops, }; /* * tvp7002_probe - Probe a TVP7002 device * @c: ptr to i2c_client struct * @id: ptr to i2c_device_id struct * * Initialize the TVP7002 device * Returns zero when successful, -EINVAL if register read fails or * -EIO if i2c access is not available. */ static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) { struct v4l2_subdev *sd; struct tvp7002 *device; struct v4l2_dv_preset preset; int polarity_a; int polarity_b; u8 revision; int error; /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(c->adapter, I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) return -EIO; if (!c->dev.platform_data) { v4l_err(c, "No platform data!!\n"); return -ENODEV; } device = kzalloc(sizeof(struct tvp7002), GFP_KERNEL); if (!device) return -ENOMEM; sd = &device->sd; device->pdata = c->dev.platform_data; device->current_preset = tvp7002_presets; /* Tell v4l2 the device is ready */ v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", c->addr, c->adapter->name); error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); if (error < 0) goto found_error; /* Get revision number */ v4l2_info(sd, "Rev. %02x detected.\n", revision); if (revision != 0x02) v4l2_info(sd, "Unknown revision detected.\n"); /* Initializes TVP7002 to its default values */ error = tvp7002_write_inittab(sd, tvp7002_init_default); if (error < 0) goto found_error; /* Set polarity information after registers have been set */ polarity_a = 0x20 | device->pdata->hs_polarity << 5 | device->pdata->vs_polarity << 2; error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); if (error < 0) goto found_error; polarity_b = 0x01 | device->pdata->fid_polarity << 2 | device->pdata->sog_polarity << 1 | device->pdata->clk_polarity; error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); if (error < 0) goto found_error; /* Set registers according to default video mode */ preset.preset = device->current_preset->preset; error = tvp7002_s_dv_preset(sd, &preset); v4l2_ctrl_handler_init(&device->hdl, 1); v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops, V4L2_CID_GAIN, 0, 255, 1, 0); sd->ctrl_handler = &device->hdl; if (device->hdl.error) { int err = device->hdl.error; v4l2_ctrl_handler_free(&device->hdl); kfree(device); return err; } v4l2_ctrl_handler_setup(&device->hdl); found_error: if (error < 0) kfree(device); return error; } /* * tvp7002_remove - Remove TVP7002 device support * @c: ptr to i2c_client struct * * Reset the TVP7002 device * Returns zero. */ static int tvp7002_remove(struct i2c_client *c) { struct v4l2_subdev *sd = i2c_get_clientdata(c); struct tvp7002 *device = to_tvp7002(sd); v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" "on address 0x%x\n", c->addr); v4l2_device_unregister_subdev(sd); v4l2_ctrl_handler_free(&device->hdl); kfree(device); return 0; } /* I2C Device ID table */ static const struct i2c_device_id tvp7002_id[] = { { "tvp7002", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, tvp7002_id); /* I2C driver data */ static struct i2c_driver tvp7002_driver = { .driver = { .owner = THIS_MODULE, .name = TVP7002_MODULE_NAME, }, .probe = tvp7002_probe, .remove = tvp7002_remove, .id_table = tvp7002_id, }; /* * tvp7002_init - Initialize driver via I2C interface * * Register the TVP7002 driver. * Return 0 on success or error code on failure. */ static int __init tvp7002_init(void) { return i2c_add_driver(&tvp7002_driver); } /* * tvp7002_exit - Remove driver via I2C interface * * Unregister the TVP7002 driver. * Returns nothing. */ static void __exit tvp7002_exit(void) { i2c_del_driver(&tvp7002_driver); } module_init(tvp7002_init); module_exit(tvp7002_exit);