// SPDX-License-Identifier: GPL-2.0-or-later
/* 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 @ kernel . 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 ) .
*/
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/v4l2-dv-timings.h>
#include <media/i2c/tvp7002.h>
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.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" );
/* I2C retry attempts */
#define I2C_RETRY_COUNT (5 )
/* End of registers */
#define TVP7002_EOR 0 x5c
/* 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 (0 x01 << TVP7002_IP_SHIFT)
/* Shift for CPL and LPF registers */
#define TVP7002_CL_SHIFT 8
#define TVP7002_CL_MASK 0 x0f
/* 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 ( 0 xff ) 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, 0 xff, TVP7002_READ },
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x67, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 xa0, TVP7002_WRITE },
{ TVP7002_HPLL_PHASE_SEL, 0 x80, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HSYNC_OUT_W, 0 x60, TVP7002_WRITE },
{ TVP7002_B_FINE_GAIN, 0 x00, TVP7002_WRITE },
{ TVP7002_G_FINE_GAIN, 0 x00, TVP7002_WRITE },
{ TVP7002_R_FINE_GAIN, 0 x00, TVP7002_WRITE },
{ TVP7002_B_FINE_OFF_MSBS, 0 x80, TVP7002_WRITE },
{ TVP7002_G_FINE_OFF_MSBS, 0 x80, TVP7002_WRITE },
{ TVP7002_R_FINE_OFF_MSBS, 0 x80, TVP7002_WRITE },
{ TVP7002_SYNC_CTL_1, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_AND_CLAMP_CTL, 0 x2e, TVP7002_WRITE },
{ TVP7002_SYNC_ON_G_THRS, 0 x5d, TVP7002_WRITE },
{ TVP7002_SYNC_SEPARATOR_THRS, 0 x47, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_SYNC_DETECT_STAT, 0 xff, TVP7002_READ },
{ TVP7002_OUT_FORMATTER, 0 x47, TVP7002_WRITE },
{ TVP7002_MISC_CTL_1, 0 x01, TVP7002_WRITE },
{ TVP7002_MISC_CTL_2, 0 x00, TVP7002_WRITE },
{ TVP7002_MISC_CTL_3, 0 x01, TVP7002_WRITE },
{ TVP7002_IN_MUX_SEL_1, 0 x00, TVP7002_WRITE },
{ TVP7002_IN_MUX_SEL_2, 0 x67, TVP7002_WRITE },
{ TVP7002_B_AND_G_COARSE_GAIN, 0 x77, TVP7002_WRITE },
{ TVP7002_R_COARSE_GAIN, 0 x07, TVP7002_WRITE },
{ TVP7002_FINE_OFF_LSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_B_COARSE_OFF, 0 x10, TVP7002_WRITE },
{ TVP7002_G_COARSE_OFF, 0 x10, TVP7002_WRITE },
{ TVP7002_R_COARSE_OFF, 0 x10, TVP7002_WRITE },
{ TVP7002_HSOUT_OUT_START, 0 x08, TVP7002_WRITE },
{ TVP7002_MISC_CTL_4, 0 x00, TVP7002_WRITE },
{ TVP7002_B_DGTL_ALC_OUT_LSBS, 0 xff, TVP7002_READ },
{ TVP7002_G_DGTL_ALC_OUT_LSBS, 0 xff, TVP7002_READ },
{ TVP7002_R_DGTL_ALC_OUT_LSBS, 0 xff, TVP7002_READ },
{ TVP7002_AUTO_LVL_CTL_ENABLE, 0 x80, TVP7002_WRITE },
{ TVP7002_DGTL_ALC_OUT_MSBS, 0 xff, TVP7002_READ },
{ TVP7002_AUTO_LVL_CTL_FILTER, 0 x53, TVP7002_WRITE },
{ 0 x29, 0 x08, TVP7002_RESERVED },
{ TVP7002_FINE_CLAMP_CTL, 0 x07, TVP7002_WRITE },
/* PWR_CTL is controlled only by the probe and reset functions */
{ TVP7002_PWR_CTL, 0 x00, TVP7002_RESERVED },
{ TVP7002_ADC_SETUP, 0 x50, TVP7002_WRITE },
{ TVP7002_COARSE_CLAMP_CTL, 0 x00, TVP7002_WRITE },
{ TVP7002_SOG_CLAMP, 0 x80, TVP7002_WRITE },
{ TVP7002_RGB_COARSE_CLAMP_CTL, 0 x8c, TVP7002_WRITE },
{ TVP7002_SOG_COARSE_CLAMP_CTL, 0 x04, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ 0 x32, 0 x18, TVP7002_RESERVED },
{ 0 x33, 0 x60, TVP7002_RESERVED },
{ TVP7002_MVIS_STRIPPER_W, 0 xff, TVP7002_RESERVED },
{ TVP7002_VSYNC_ALGN, 0 x10, TVP7002_WRITE },
{ TVP7002_SYNC_BYPASS, 0 x00, TVP7002_WRITE },
{ TVP7002_L_FRAME_STAT_LSBS, 0 xff, TVP7002_READ },
{ TVP7002_L_FRAME_STAT_MSBS, 0 xff, TVP7002_READ },
{ TVP7002_CLK_L_STAT_LSBS, 0 xff, TVP7002_READ },
{ TVP7002_CLK_L_STAT_MSBS, 0 xff, TVP7002_READ },
{ TVP7002_HSYNC_W, 0 xff, TVP7002_READ },
{ TVP7002_VSYNC_W, 0 xff, TVP7002_READ },
{ TVP7002_L_LENGTH_TOL, 0 x03, TVP7002_WRITE },
{ 0 x3e, 0 x60, TVP7002_RESERVED },
{ TVP7002_VIDEO_BWTH_CTL, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x2c, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x2c, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x05, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x1e, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x00, TVP7002_WRITE },
{ TVP7002_FBIT_F_0_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_FBIT_F_1_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_YUV_Y_G_COEF_LSBS, 0 xe3, TVP7002_WRITE },
{ TVP7002_YUV_Y_G_COEF_MSBS, 0 x16, TVP7002_WRITE },
{ TVP7002_YUV_Y_B_COEF_LSBS, 0 x4f, TVP7002_WRITE },
{ TVP7002_YUV_Y_B_COEF_MSBS, 0 x02, TVP7002_WRITE },
{ TVP7002_YUV_Y_R_COEF_LSBS, 0 xce, TVP7002_WRITE },
{ TVP7002_YUV_Y_R_COEF_MSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_YUV_U_G_COEF_LSBS, 0 xab, TVP7002_WRITE },
{ TVP7002_YUV_U_G_COEF_MSBS, 0 xf3, TVP7002_WRITE },
{ TVP7002_YUV_U_B_COEF_LSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_YUV_U_B_COEF_MSBS, 0 x10, TVP7002_WRITE },
{ TVP7002_YUV_U_R_COEF_LSBS, 0 x55, TVP7002_WRITE },
{ TVP7002_YUV_U_R_COEF_MSBS, 0 xfc, TVP7002_WRITE },
{ TVP7002_YUV_V_G_COEF_LSBS, 0 x78, TVP7002_WRITE },
{ TVP7002_YUV_V_G_COEF_MSBS, 0 xf1, TVP7002_WRITE },
{ TVP7002_YUV_V_B_COEF_LSBS, 0 x88, TVP7002_WRITE },
{ TVP7002_YUV_V_B_COEF_MSBS, 0 xfe, TVP7002_WRITE },
{ TVP7002_YUV_V_R_COEF_LSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_YUV_V_R_COEF_MSBS, 0 x10, TVP7002_WRITE },
/* This signals end of register values */
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 480P */
static const struct i2c_reg_value tvp7002_parms_480P[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x35, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 xa0, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 x02, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x91, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x0B, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x03, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x01, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x13, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x13, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x18, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x06, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x10, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x03, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x03, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 576P */
static const struct i2c_reg_value tvp7002_parms_576P[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x36, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 x18, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x9B, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x0F, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x2D, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x00, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x18, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x06, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x10, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x03, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x03, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 1080I60 */
static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x89, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x80, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 x98, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x8a, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x08, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x16, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x17, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x01, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 1080P60 */
static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x89, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x80, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 xE0, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x8a, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x08, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x16, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x17, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x01, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 1080I50 */
static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 xa5, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x00, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 x98, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x8a, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x08, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x02, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x16, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x17, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x01, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 720P60 */
static const struct i2c_reg_value tvp7002_parms_720P60[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x67, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 xa0, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x47, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x4B, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x05, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x2D, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x00, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, TVP7002_RESERVED }
};
/* Register parameters for 720P50 */
static const struct i2c_reg_value tvp7002_parms_720P50[] = {
{ TVP7002_HPLL_FDBK_DIV_MSBS, 0 x7b, TVP7002_WRITE },
{ TVP7002_HPLL_FDBK_DIV_LSBS, 0 xc0, TVP7002_WRITE },
{ TVP7002_HPLL_CRTL, 0 x98, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_LSBS, 0 x47, TVP7002_WRITE },
{ TVP7002_AVID_START_PIXEL_MSBS, 0 x01, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_LSBS, 0 x4B, TVP7002_WRITE },
{ TVP7002_AVID_STOP_PIXEL_MSBS, 0 x06, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_START_L_OFF, 0 x05, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_START_L_OFF, 0 x00, TVP7002_WRITE },
{ TVP7002_VBLK_F_0_DURATION, 0 x2D, TVP7002_WRITE },
{ TVP7002_VBLK_F_1_DURATION, 0 x00, TVP7002_WRITE },
{ TVP7002_ALC_PLACEMENT, 0 x5a, TVP7002_WRITE },
{ TVP7002_CLAMP_START, 0 x32, TVP7002_WRITE },
{ TVP7002_CLAMP_W, 0 x20, TVP7002_WRITE },
{ TVP7002_HPLL_PRE_COAST, 0 x01, TVP7002_WRITE },
{ TVP7002_HPLL_POST_COAST, 0 x00, TVP7002_WRITE },
{ TVP7002_EOR, 0 xff, 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 ,
0 x2EE,
135 ,
153
},
{
V4L2_DV_BT_CEA_1920X1080I60,
tvp7002_parms_1080I60,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_INTERLACED,
0 ,
0 x465,
181 ,
205
},
{
V4L2_DV_BT_CEA_1920X1080I50,
tvp7002_parms_1080I50,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_INTERLACED,
0 ,
0 x465,
217 ,
245
},
{
V4L2_DV_BT_CEA_1280X720P50,
tvp7002_parms_720P50,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_NONE,
1 ,
0 x2EE,
163 ,
183
},
{
V4L2_DV_BT_CEA_1920X1080P60,
tvp7002_parms_1080P60,
V4L2_COLORSPACE_REC709,
V4L2_FIELD_NONE,
1 ,
0 x465,
90 ,
102
},
{
V4L2_DV_BT_CEA_720X480P59_94,
tvp7002_parms_480P,
V4L2_COLORSPACE_SMPTE170M,
V4L2_FIELD_NONE,
1 ,
0 x20D,
0 xffff,
0 xffff
},
{
V4L2_DV_BT_CEA_720X576P50,
tvp7002_parms_576P,
V4L2_COLORSPACE_SMPTE170M,
V4L2_FIELD_NONE,
1 ,
0 x271,
0 xffff,
0 xffff
}
};
#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;
struct media_pad pad;
};
/*
* 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_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, unsigned int pad,
struct v4l2_dv_timings *dv_timings)
{
struct tvp7002 *device = to_tvp7002(sd);
const struct v4l2_bt_timings *bt = &dv_timings->bt;
int i;
if (pad != 0 )
return -EINVAL;
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, unsigned int pad,
struct v4l2_dv_timings *dv_timings)
{
struct tvp7002 *device = to_tvp7002(sd);
if (pad != 0 )
return -EINVAL;
*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_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 == 0 xffff)
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, unsigned int pad,
struct v4l2_dv_timings *timings)
{
int index;
int err;
if (pad != 0 )
return -EINVAL;
err = tvp7002_query_dv(sd, &index);
if (err)
return err;
*timings = tvp7002_timings[index].timings;
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 .
*/
static int tvp7002_g_register(struct v4l2_subdev *sd,
struct v4l2_dbg_register *reg)
{
u8 val;
int ret;
ret = tvp7002_read(sd, reg->reg & 0 xff, &val);
if (ret < 0 )
return ret;
reg->val = val;
reg->size = 1 ;
return 0 ;
}
/*
* 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 .
*/
static int tvp7002_s_register(struct v4l2_subdev *sd,
const struct v4l2_dbg_register *reg)
{
return tvp7002_write(sd, reg->reg & 0 xff, reg->val & 0 xff);
}
#endif
/*
* 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;
if (device->streaming == enable)
return 0 ;
/* low impedance: on, high impedance: off */
error = tvp7002_write(sd, TVP7002_MISC_CTL_2, enable ? 0 x00 : 0 x03);
if (error) {
v4l2_dbg(1 , debug, sd, "Fail to set streaming\n" );
return error;
}
device->streaming = enable;
return 0 ;
}
/*
* 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)
{
if (timings->pad != 0 )
return -EINVAL;
/* 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,
};
/*
* tvp7002_enum_mbus_code ( ) - Enum supported digital video format on pad
* @ sd : pointer to standard V4L2 sub - device structure
* @ sd_state : V4L2 subdev state
* @ code : pointer to subdev enum mbus code struct
*
* Enumerate supported digital video formats for pad .
*/
static int
tvp7002_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
/* Check requested format index is within range */
if (code->index != 0 )
return -EINVAL;
code->code = MEDIA_BUS_FMT_YUYV10_1X20;
return 0 ;
}
/*
* tvp7002_get_pad_format ( ) - get video format on pad
* @ sd : pointer to standard V4L2 sub - device structure
* @ sd_state : V4L2 subdev state
* @ fmt : pointer to subdev format struct
*
* get video format for pad .
*/
static int
tvp7002_get_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct tvp7002 *tvp7002 = to_tvp7002(sd);
fmt->format.code = MEDIA_BUS_FMT_YUYV10_1X20;
fmt->format.width = tvp7002->current_timings->timings.bt.width;
fmt->format.height = tvp7002->current_timings->timings.bt.height;
fmt->format.field = tvp7002->current_timings->scanmode;
fmt->format.colorspace = tvp7002->current_timings->color_space;
return 0 ;
}
/*
* tvp7002_set_pad_format ( ) - set video format on pad
* @ sd : pointer to standard V4L2 sub - device structure
* @ sd_state : V4L2 subdev state
* @ fmt : pointer to subdev format struct
*
* set video format for pad .
*/
static int
tvp7002_set_pad_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
return tvp7002_get_pad_format(sd, sd_state, fmt);
}
/* V4L2 core operation handlers */
static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
.log_status = tvp7002_log_status,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = tvp7002_g_register,
.s_register = tvp7002_s_register,
#endif
};
/* Specific video subsystem operation handlers */
static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
.s_stream = tvp7002_s_stream,
};
/* media pad related operation handlers */
static const struct v4l2_subdev_pad_ops tvp7002_pad_ops = {
.enum_mbus_code = tvp7002_enum_mbus_code,
.get_fmt = tvp7002_get_pad_format,
.set_fmt = tvp7002_set_pad_format,
.g_dv_timings = tvp7002_g_dv_timings,
.s_dv_timings = tvp7002_s_dv_timings,
.query_dv_timings = tvp7002_query_dv_timings,
.enum_dv_timings = tvp7002_enum_dv_timings,
};
/* V4L2 top level operation handlers */
static const struct v4l2_subdev_ops tvp7002_ops = {
.core = &tvp7002_core_ops,
.video = &tvp7002_video_ops,
.pad = &tvp7002_pad_ops,
};
static struct tvp7002_config *
tvp7002_get_pdata(struct i2c_client *client)
{
struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
struct tvp7002_config *pdata = NULL;
struct device_node *endpoint;
unsigned int flags;
if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
return client->dev.platform_data;
endpoint = of_graph_get_endpoint_by_regs(client->dev.of_node, 0 , -1 );
if (!endpoint)
return NULL;
if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
goto done;
pdata = devm_kzalloc(&client->dev, sizeof (*pdata), GFP_KERNEL);
if (!pdata)
goto done;
flags = bus_cfg.bus.parallel.flags;
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
pdata->hs_polarity = 1 ;
if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
pdata->vs_polarity = 1 ;
if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
pdata->clk_polarity = 1 ;
if (flags & V4L2_MBUS_FIELD_EVEN_HIGH)
pdata->fid_polarity = 1 ;
if (flags & V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH)
pdata->sog_polarity = 1 ;
done:
of_node_put(endpoint);
return pdata;
}
/*
* 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)
{
struct tvp7002_config *pdata = tvp7002_get_pdata(c);
struct v4l2_subdev *sd;
struct tvp7002 *device;
struct v4l2_dv_timings timings;
int polarity_a;
int polarity_b;
u8 revision;
int error;
if (pdata == NULL) {
dev_err(&c->dev, "No platform data\n" );
return -EINVAL;
}
/* 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;
device = devm_kzalloc(&c->dev, sizeof (struct tvp7002), GFP_KERNEL);
if (!device)
return -ENOMEM;
sd = &device->sd;
device->pdata = pdata;
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 != 0 x02)
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 = 0 x20 | 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 = 0 x01 | 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, 0 , &timings);
#if defined (CONFIG_MEDIA_CONTROLLER)
device->pad.flags = MEDIA_PAD_FL_SOURCE;
device->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
device->sd.entity.function = MEDIA_ENT_F_ATV_DECODER;
error = media_entity_pads_init(&device->sd.entity, 1 , &device->pad);
if (error < 0 )
return error;
#endif
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) {
error = device->hdl.error;
goto error;
}
v4l2_ctrl_handler_setup(&device->hdl);
error = v4l2_async_register_subdev(&device->sd);
if (error)
goto error;
return 0 ;
error:
v4l2_ctrl_handler_free(&device->hdl);
#if defined (CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&device->sd.entity);
#endif
return error;
}
/*
* tvp7002_remove - Remove TVP7002 device support
* @ c : ptr to i2c_client struct
*
* Reset the TVP7002 device
* Returns zero .
*/
static void 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_async_unregister_subdev(&device->sd);
#if defined (CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&device->sd.entity);
#endif
v4l2_ctrl_handler_free(&device->hdl);
}
/* I2C Device ID table */
static const struct i2c_device_id tvp7002_id[] = {
{ "tvp7002" },
{ }
};
MODULE_DEVICE_TABLE(i2c, tvp7002_id);
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id tvp7002_of_match[] = {
{ .compatible = "ti,tvp7002" , },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, tvp7002_of_match);
#endif
/* I2C driver data */
static struct i2c_driver tvp7002_driver = {
.driver = {
.of_match_table = of_match_ptr(tvp7002_of_match),
.name = TVP7002_MODULE_NAME,
},
.probe = tvp7002_probe,
.remove = tvp7002_remove,
.id_table = tvp7002_id,
};
module_i2c_driver(tvp7002_driver);
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