diff options
Diffstat (limited to 'drivers/media/i2c/tvp7002.c')
| -rw-r--r-- | drivers/media/i2c/tvp7002.c | 1049 |
1 files changed, 1049 insertions, 0 deletions
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c new file mode 100644 index 0000000..02c51d4 --- /dev/null +++ b/drivers/media/i2c/tvp7002.c @@ -0,0 +1,1049 @@ +/* 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 <santiago.nunez@ridgerun.com> + * + * This code is partially based upon the TVP5150 driver + * written by Mauro Carvalho Chehab (mchehab@infradead.org), + * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com> + * 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 <linux/delay.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/videodev2.h> +#include <linux/module.h> +#include <linux/v4l2-dv-timings.h> +#include <media/tvp7002.h> +#include <media/v4l2-device.h> +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ctrls.h> +#include "tvp7002_reg.h" + +MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); +MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>"); +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 bool 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 } +}; + +/* Timings definition for handling device operation */ +struct tvp7002_timings_definition { + struct v4l2_dv_timings timings; + 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 timings */ +static const struct tvp7002_timings_definition tvp7002_timings[] = { + { + V4L2_DV_BT_CEA_1280X720P60, + tvp7002_parms_720P60, + V4L2_COLORSPACE_REC709, + V4L2_FIELD_NONE, + 1, + 0x2EE, + 135, + 153 + }, + { + V4L2_DV_BT_CEA_1920X1080I60, + tvp7002_parms_1080I60, + V4L2_COLORSPACE_REC709, + V4L2_FIELD_INTERLACED, + 0, + 0x465, + 181, + 205 + }, + { + V4L2_DV_BT_CEA_1920X1080I50, + tvp7002_parms_1080I50, + V4L2_COLORSPACE_REC709, + V4L2_FIELD_INTERLACED, + 0, + 0x465, + 217, + 245 + }, + { + V4L2_DV_BT_CEA_1280X720P50, + tvp7002_parms_720P50, + V4L2_COLORSPACE_REC709, + V4L2_FIELD_NONE, + 1, + 0x2EE, + 163, + 183 + }, + { + V4L2_DV_BT_CEA_1920X1080P60, + tvp7002_parms_1080P60, + V4L2_COLORSPACE_REC709, + V4L2_FIELD_NONE, + 1, + 0x465, + 90, + 102 + }, + { + V4L2_DV_BT_CEA_720X480P59_94, + tvp7002_parms_480P, + V4L2_COLORSPACE_SMPTE170M, + V4L2_FIELD_NONE, + 1, + 0x20D, + 0xffff, + 0xffff + }, + { + V4L2_DV_BT_CEA_720X576P50, + tvp7002_parms_576P, + V4L2_COLORSPACE_SMPTE170M, + V4L2_FIELD_NONE, + 1, + 0x271, + 0xffff, + 0xffff + } +}; + +#define NUM_TIMINGS ARRAY_SIZE(tvp7002_timings) + +/* 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_timings_definition *current_timings; +}; + +/* + * 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; +} + +static int tvp7002_s_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *dv_timings) +{ + struct tvp7002 *device = to_tvp7002(sd); + const struct v4l2_bt_timings *bt = &dv_timings->bt; + int i; + + if (dv_timings->type != V4L2_DV_BT_656_1120) + return -EINVAL; + for (i = 0; i < NUM_TIMINGS; i++) { + const struct v4l2_bt_timings *t = &tvp7002_timings[i].timings.bt; + + if (!memcmp(bt, t, &bt->standards - &bt->width)) { + device->current_timings = &tvp7002_timings[i]; + return tvp7002_write_inittab(sd, tvp7002_timings[i].p_settings); + } + } + return -EINVAL; +} + +static int tvp7002_g_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *dv_timings) +{ + struct tvp7002 *device = to_tvp7002(sd); + + *dv_timings = device->current_timings->timings; + return 0; +} + +/* + * 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); + const struct v4l2_bt_timings *bt = &device->current_timings->timings.bt; + + f->width = bt->width; + f->height = bt->height; + f->code = V4L2_MBUS_FMT_YUYV10_1X20; + f->field = device->current_timings->scanmode; + f->colorspace = device->current_timings->color_space; + + v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d", + f->width, f->height); + return 0; +} + +/* + * tvp7002_query_dv() - query DV timings + * @sd: pointer to standard V4L2 sub-device structure + * @index: index into the tvp7002_timings array + * + * Returns the current DV timings detected by TVP7002. If no active input is + * detected, returns -EINVAL + */ +static int tvp7002_query_dv(struct v4l2_subdev *sd, int *index) +{ + const struct tvp7002_timings_definition *timings = tvp7002_timings; + u8 progressive; + u32 lpfr; + u32 cpln; + int error = 0; + u8 lpf_lsb; + u8 lpf_msb; + u8 cpl_lsb; + u8 cpl_msb; + + /* Return invalid index if no active input is detected */ + *index = NUM_TIMINGS; + + /* 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_TIMINGS; (*index)++, timings++) + if (lpfr == timings->lines_per_frame && + progressive == timings->progressive) { + if (timings->cpl_min == 0xffff) + break; + if (cpln >= timings->cpl_min && cpln <= timings->cpl_max) + break; + } + + if (*index == NUM_TIMINGS) { + v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n", + lpfr, cpln); + return -ENOLINK; + } + + /* Update lines per frame and clocks per line info */ + v4l2_dbg(1, debug, sd, "detected timings: %d\n", *index); + return 0; +} + +static int tvp7002_query_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *timings) +{ + int index; + int err = tvp7002_query_dv(sd, &index); + + if (err) + return err; + *timings = tvp7002_timings[index].timings; + return 0; +} + +#ifdef CPTCFG_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, + const 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) +{ + struct tvp7002 *device = to_tvp7002(sd); + const struct v4l2_bt_timings *bt; + int detected; + + /* Find my current timings */ + tvp7002_query_dv(sd, &detected); + + bt = &device->current_timings->timings.bt; + v4l2_info(sd, "Selected DV Timings: %ux%u\n", bt->width, bt->height); + if (detected == NUM_TIMINGS) { + v4l2_info(sd, "Detected DV Timings: None\n"); + } else { + bt = &tvp7002_timings[detected].timings.bt; + v4l2_info(sd, "Detected DV Timings: %ux%u\n", + bt->width, bt->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; +} + +static int tvp7002_enum_dv_timings(struct v4l2_subdev *sd, + struct v4l2_enum_dv_timings *timings) +{ + /* Check requested format index is within range */ + if (timings->index >= NUM_TIMINGS) + return -EINVAL; + + timings->timings = tvp7002_timings[timings->index].timings; + return 0; +} + +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 CPTCFG_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 = { + .g_dv_timings = tvp7002_g_dv_timings, + .s_dv_timings = tvp7002_s_dv_timings, + .enum_dv_timings = tvp7002_enum_dv_timings, + .query_dv_timings = tvp7002_query_dv_timings, + .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_timings timings; + 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 = devm_kzalloc(&c->dev, sizeof(struct tvp7002), GFP_KERNEL); + + if (!device) + return -ENOMEM; + + sd = &device->sd; + device->pdata = c->dev.platform_data; + device->current_timings = tvp7002_timings; + + /* 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) + return 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) + return 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) + return 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) + return error; + + /* Set registers according to default video mode */ + timings = device->current_timings->timings; + error = tvp7002_s_dv_timings(sd, &timings); + + 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); + return err; + } + v4l2_ctrl_handler_setup(&device->hdl); + + return 0; +} + +/* + * tvp7002_remove - Remove TVP7002 device support + * @c: ptr to i2c_client struct + * + * Reset the TVP7002 device + * Returns zero. + */ +static int tvp7002_remove(struct i2c_client *c) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(c); + struct tvp7002 *device = to_tvp7002(sd); + + v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" + "on address 0x%x\n", c->addr); + + v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(&device->hdl); + 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, +}; + +module_i2c_driver(tvp7002_driver); |