// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2022 Rockchip Electronics Co. Ltd.
*
* it6616 HDMI to MIPI CSI-2 bridge driver.
*
* Author: Jau-Chih.Tseng@ite.com.tw
* Jianwei Fan <jianwei.fan@rock-chips.com>
* V0.0X01.0X00 first version.
*
*/
// #define DEBUG
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/hdmi.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_graph.h>
#include <linux/rk-camera-module.h>
#include <linux/slab.h>
#include <linux/timer.h>
#include <linux/v4l2-dv-timings.h>
#include <linux/version.h>
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <linux/compat.h>
#include <linux/regmap.h>
#include <media/v4l2-controls_rockchip.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-dv-timings.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/cec.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x00)
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-3)");
#define IT6616_NAME "IT6616"
#define POLL_INTERVAL_MS 100
#define TIMER_100MS 105
#define IT6616_XVCLK_FREQ 27000000
#define IT6616_LINK_FREQ 400000000
#define IT6616_PIXEL_RATE 400000000
#define IT6616_MEDIA_BUS_FMT MEDIA_BUS_FMT_UYVY8_2X8
#define I2C_ADR_HDMI 0x90
#define I2C_ADR_MIPI 0xAC
#define I2C_ADR_EDID 0xA8
//define in HDMI SPEC 2.0 PAGE 84
#define AUDIO_SAMPLING_1024K 0x35
#define AUDIO_SAMPLING_768K 0x09
#define AUDIO_SAMPLING_512K 0x3B
#define AUDIO_SAMPLING_384K 0x05
#define AUDIO_SAMPLING_256K 0x1B
#define AUDIO_SAMPLING_192K 0x0E
#define AUDIO_SAMPLING_176P4K 0x0C
#define AUDIO_SAMPLING_128K 0x2B
#define AUDIO_SAMPLING_96K 0x0A
#define AUDIO_SAMPLING_88P2K 0x08
#define AUDIO_SAMPLING_64K 0x0B
#define AUDIO_SAMPLING_48K 0x02
#define AUDIO_SAMPLING_44P1K 0x00
#define AUDIO_SAMPLING_32K 0x03
#define REG_RX_AVI_HB1 0x13
#define REG_RX_AVI_HB2 0x12
#define REG_RX_AVI_DB0 0x14
#define REG_RX_AVI_DB1 0x15
#define REG_RX_AVI_DB2 0x16
#define REG_RX_AVI_DB3 0x17
#define REG_RX_AVI_DB4 0x18
#define REG_RX_AVI_DB5 0x19
#define REG_RX_AVI_DB6 0x1A
#define REG_RX_AVI_DB7 0x1B
#define REG_RX_AVI_DB8 0x1C
#define REG_RX_AVI_DB9 0x1D
#define REG_RX_AVI_DB10 0x1E
#define REG_RX_AVI_DB11 0x1F
#define REG_RX_AVI_DB12 0x20
#define REG_RX_AVI_DB13 0x21
#define REG_RX_AVI_DB14 0x22
#define REG_RX_AVI_DB15 0x23
#define DP_REG_INT_STS_07 0x07
#define DP_REG_INT_STS_08 0x08
#define DP_REG_INT_STS_09 0x09
#define DP_REG_INT_STS_0A 0x0A
#define DP_REG_INT_STS_0B 0x0B
#define DP_REG_INT_STS_0C 0x0C
#define DP_REG_INT_STS_0D 0x0D
#define DP_REG_INT_STS_0E 0x0E
#define DP_REG_INT_STS_0F 0x0F
#define DP_REG_INT_STS_2B 0x2B
#define DP_REG_INT_STS_2C 0x2C
#define DP_REG_INT_STS_2D 0x2D
#define DP_REG_INT_MASK_07 0xD1
#define DP_REG_INT_MASK_08 0xD2
#define DP_REG_INT_MASK_09 0xD3
#define DP_REG_INT_MASK_0A 0xD4
#define DP_REG_INT_MASK_0B 0xD5
#define DP_REG_INT_MASK_0C 0xD6
#define DP_REG_INT_MASK_0D 0xD7
#define DP_REG_INT_MASK_0E 0xD8
#define DP_REG_INT_MASK_0F 0xD9
#define DP_REG_INT_MASK_10 0xDA
#define DP_REG_INT_MASK_11 0xDB
#define DP_REG_INT_MASK_2D 0xDC
#define DP_REG_INT_MASK_2C 0xDD
#define DP_REG_INT_MASK_2B 0xDE
#define BANK 0x0F
#define BANKM 0x07
#define FROM_CONFIG 0xFF
#define AUDIO_I2S_JUSTIFIED AUDIO_I2S_MODE
// #define MIPI_TX_INTERFACE MIPI_DSI
#define MIPI_TX_INTERFACE MIPI_CSI
#define MIPI_TX_LANE_SWAP false
#define MIPI_TX_PN_SWAP false
// #define MIPI_TX_DATA_TYPE DSI_RGB_24b
#define MIPI_TX_DATA_TYPE CSI_YCbCr4228b
#define MIPI_TX_ENABLE_AUTO_ADJUST_LANE_COUNT false
/* HDMI_RX_VIDEO_STABLE_CONDITION_V_FRAME,
* HDMI_RX_VIDEO_STABLE_CONDITION_CLOCK,
* HDMI_RX_VIDEO_STABLE_CONDITION_H_LINE
*/
#define HDMI_RX_VIDEO_STABLE_CONDITION HDMI_RX_VIDEO_STABLE_CONDITION_V_FRAME
/* MIPI_TX_NON_CONTINUOUS_CLOCK, MIPI_TX_CONTINUOUS_CLOCK */
#define MIPI_TX_ENABLE_CONTINUOUS_CLOCK MIPI_TX_CONTINUOUS_CLOCK
#define MIPI_TX_ENABLE_DSI_SYNC_EVENT false
#define MIPI_TX_ENABLE_DSI_EOTP_PACKET false
#define MIPI_TX_ENABLE_INITIAL_FIRE_LP_CMD true
#define DEFAULT_RS_LEVEL 0x9F
#define MIPI_TX_ENABLE_MANUAL_ADJUSTED_D_PHY false
#define MIPI_TX_LPX 2
#define MIPI_TX_HS_PREPARE 0x02
#define MIPI_TX_HS_PREPARE_ZERO 0x04
#define MIPI_TX_HS_TRAIL 0x07
#define MAX_AUDIO_SAMPLING_FREQ_ERROR_COUNT 15
#define HDMI_RX_DISABLE_PIXEL_REPEAT true
#define MIPI_TX_LANE_ADJUST_THRESHOLD 30
#define MIPI_TX_V_LPM_LENGTH 0x200
#define MIPI_TX_H_LPM_LENGTH 0x80
#define MIPI_TX_ENABLE_H_ENTER_LPM false
#define MIPI_TX_ENABLE_HS_PRE_1T true
#define MIPI_TX_ENABLE_PCLK_INV false
#define MIPI_TX_ENABLE_MCLK_INV true
#define MIPI_TX_ENABLE_BY_PASS true
#define MIPI_TX_ENABLE_H_FIRE_PACKET false
#define HDMI_RX_ENABLE_COLOR_UP_DN_FILTER true
#define HDMI_RX_ENABLE_DITHER_FUNCTION false
#define HDMI_RX_ENABLE_DITHER_FCNT_FUNCTION false
#define HDMI_RX_COLOR_CLIP true
#define HDMI_RX_CRCB_LIMIT false
#define HDMI_RX_QUANT_4LB true
#define HDMI_RX_AUTO_CSC_SELECT false
#define LP_CMD_FIFO_SIZE 128
enum csc_matrix_type {
CSCMtx_RGB2YUV_ITU601_16_235,
CSCMtx_RGB2YUV_ITU601_00_255,
CSCMtx_RGB2YUV_ITU709_16_235,
CSCMtx_RGB2YUV_ITU709_00_255,
CSCMtx_YUV2RGB_ITU601_16_235,
CSCMtx_YUV2RGB_ITU601_00_255,
CSCMtx_YUV2RGB_ITU709_16_235,
CSCMtx_YUV2RGB_ITU709_00_255,
CSCMtx_YUV2RGB_BT2020_00_255,
CSCMtx_RGB_00_255_RGB_16_235,
CSCMtx_RGB_16_235_RGB_00_255,
CSCMtx_Unknown,
};
enum {
MIPI_CSI,
MIPI_DSI,
};
enum {
VSC_COLOR_RGB = 0x00,
VSC_COLOR_YUV444 = 0x01,
VSC_COLOR_YUV422 = 0x02,
VSC_COLOR_YUV420 = 0x03,
VSC_COLOR_YONLY,
VSC_COLOR_RAW,
VSC_COLOR_RESERVE
};
enum {
COLOR_RGB = 0x00,
COLOR_YUV422 = 0x01,
COLOR_YUV444 = 0x02,
COLOR_YUV420 = 0x03,
COLOR_RESERVE
};
enum {
COLORIMETRY_BT601 = 0x00,
COLORIMETRY_BT709 = 0x01,
COLORIMETRY_xvYCC601 = 0x02,
COLORIMETRY_xvYCC709 = 0x03,
COLORIMETRY_sYCC601 = 0x04,
COLORIMETRY_aYCC601 = 0x05,
COLORIMETRY_BT2020YcCbcCrc = 0x06,
COLORIMETRY_BT2020YCbCr = 0x07,
COLORIMETRY_RESERVE
};
enum {
COLORIMETRY_sRGB = 0x00,
COLORIMETRY_fixRGB = 0x01,
COLORIMETRY_scRGB = 0x02,
COLORIMETRY_aRGB = 0x03,
COLORIMETRY_DCIP3 = 0x04,
COLORIMETRY_CUSTOM = 0x05,
COLORIMETRY_BT2020RGB = 0x06
};
enum mipi_csi_data {
CSI_RGB10b = 0x25,
CSI_RGB888 = 0x24,
CSI_RGB666 = 0x23,
CSI_RGB565 = 0x22,
CSI_RGB555 = 0x21,
CSI_RGB444 = 0x20,
CSI_YCbCr4208b = 0x1A,
CSI_YCbCr4228b = 0x1E,
CSI_YCbCr42210b = 0x1F,
CSI_YCbCr42212b = 0x30
};
enum mipi_dsi_data {
DSI_RGB_24b = 0x3E,
DSI_RGB_30b = 0x0D,
DSI_RGB_36b = 0x1D,
DSI_RGB_18b = 0x1E,
DSI_RGB_18b_L = 0x2E,
DSI_YCbCr_16b = 0x2C,
DSI_YCbCr_20b = 0x0C,
DSI_YCbCr_24b = 0x1C
};
enum csc_select {
CSC_BYPASS = 0x00,
CSC_RGB2YUV = 0x02,
CSC_YUV2RGB = 0x03,
};
enum av_mute_state {
AV_MUTE_OFF,
AV_MUTE_ON,
};
enum {
AUDIO_OFF = 0x00,
AUDIO_I2S = 0x01,
AUDIO_SPDIF = 0x02,
};
enum {
AUDIO_I2S_MODE,
AUDIO_RIGHT_JUSTIFIED,
AUDIO_LEFT_JUSTIFIED,
};
enum {
MIPI_TX_NON_CONTINUOUS_CLOCK,
MIPI_TX_CONTINUOUS_CLOCK,
};
enum {
HDMI_RX_VIDEO_STABLE_CONDITION_V_FRAME,
HDMI_RX_VIDEO_STABLE_CONDITION_CLOCK,
HDMI_RX_VIDEO_STABLE_CONDITION_H_LINE,
};
enum dcs_cmd_name {
ENTER_SLEEP_MODE,
SET_DISPLAY_OFF,
EXIT_SLEEP_MODE,
SET_DISPLAY_ON,
GET_DISPLAY_MODE,
LONG_WRITE_CMD,
LONG_WRITE_CMD1,
DELAY,
};
enum mipi_lp_cmd_type {
LP_CMD_LPDT = 0x87,
LP_CMD_BTA = 0xFF,
};
enum mipi_packet_size {
SHORT_PACKET,
LONG_PACKET,
UNKNOWN_PACKET,
};
enum mipi_tx_lp_cmd_header {
NO_HEADER,
CALC_HEADER,
};
static const s64 link_freq_menu_items[] = {
IT6616_LINK_FREQ,
};
struct it6616_reg_set {
u8 ucAddr;
u8 andmask;
u8 ucValue;
};
struct bus_config {
u8 lane;
u8 type;
u8 reg23_p2m;
u8 regb0_div[3];
};
union tx_p2m_delay {
u8 tx_dsi_vsync_delay;
u8 tx_csi_p2m_delay;
};
struct bus_para {
struct bus_config cfg;
u8 swap_pn;
u8 swap_lan;
u8 pclk_inv;
u8 mclk_inv;
u8 lpx_num;
u8 mipi_tx_hs_prepare;
u8 tx_sel_line_start;
u8 tx_bypass;
u8 tx_enable_hs_pre_1T;
u8 tx_enable_h_enter_lpm;
u8 tx_vsync_delay;
union tx_p2m_delay p2m_delay;
u16 tx_vlpm_length;
u16 tx_hlpm_length;
};
struct mipi_bus {
u8 lane_cnt;
u8 data_type;
u8 bus_type;
u32 mbus_fmt_code;
struct bus_para bus_para_config;
};
struct mipi_packet_size_data_id_map {
u8 data_id;
enum mipi_packet_size packet_size;
};
struct mipi_packet_size_data_id_map packet_size_data_id_map[] = {
{0x05, SHORT_PACKET},/* dcs short write without parameter */
{0x15, SHORT_PACKET},/* dcs short write with one parameter */
{0x23, SHORT_PACKET},/* generic short write, 2 parameters */
{0x29, LONG_PACKET},/* generic long write */
{0x39, LONG_PACKET},/* dcs long write */
{0x06, SHORT_PACKET},
{0x16, SHORT_PACKET},
{0x37, SHORT_PACKET},
{0x03, SHORT_PACKET},
{0x13, SHORT_PACKET},
{0x04, SHORT_PACKET},
{0x14, SHORT_PACKET},
{0x24, SHORT_PACKET}
};
struct mipi_packet {
u8 data_id;
u8 word_count_l;
u8 word_count_h;
u8 ecc;
};
struct dcs_setting_entry {
enum dcs_cmd_name cmd_name;
enum mipi_lp_cmd_type cmd;
u8 data_id;
u8 count;
u8 para_list[LP_CMD_FIFO_SIZE];
};
static const struct dcs_setting_entry dcs_table[] = {
{ /* command 0x10 with no parameter, checksum: 0x2C */
ENTER_SLEEP_MODE, LP_CMD_LPDT, 0x05, 2, {0x10, 0x00}
}, { /* command 0x28 with no parameter, checksum: 0x06 */
SET_DISPLAY_OFF, LP_CMD_LPDT, 0x05, 2, {0x28, 0x00}
}, { /* command 0x11 with no parameter, checksum: 0x36 */
EXIT_SLEEP_MODE, LP_CMD_LPDT, 0x05, 2, {0x11, 0x00}
}, { /* command 0x29 with no parameter, checksum: 0x1C */
SET_DISPLAY_ON, LP_CMD_LPDT, 0x05, 2, {0x29, 0x00}
}, { /* checksum: 0x1A */
GET_DISPLAY_MODE, LP_CMD_LPDT, 0x06, 2, {0x0D, 0x00}
}, { /* command 0x50 with 2 parameters */
LONG_WRITE_CMD, LP_CMD_LPDT, 0x39, 3, {0x50, 0x5A, 0x09}
}, { /* command 0x80 with 16 parameters */
LONG_WRITE_CMD1, LP_CMD_LPDT, 0x29, 17,
{0x80, 0x5A, 0x51, 0xB5, 0x2A, 0x6C, 0x35,
0x4B, 0x01, 0x40, 0xE1, 0x0D, 0x82, 0x20, 0x08, 0x30, 0x03}
}
};
static const int code_to_rate_table[] = {
44100, 0, 48000, 32000, 0, 384000, 0, 0, 88200,
768000, 96000, 64000, 176400, 0, 192000, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 256000, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128000, 0, 0, 0, 0,
0, 0, 0, 0, 0, 1024000, 0, 0, 0, 0, 0, 512000
};
struct color_format {
unsigned char color_mode;
unsigned char color_depth;
unsigned char color_cea_range;
unsigned char color_colorietry;
unsigned char color_ex_colorietry;
unsigned char content_type;
};
struct video_info {
u16 h_active;
u16 v_active;
u16 h_total;
u16 v_total;
u32 pclk;
u32 TMDSCLK;
u32 frame_rate;
u16 h_front_porch;
u16 h_sync_w;
u16 h_back_porch;
u16 v_front_porch;
u16 v_sync_w;
u16 v_back_porch;
u16 interlaced;
u16 v_sync_pol;
u16 h_sync_pol;
u16 ColorDepth;
u16 VIC;
};
struct audio_info {
u32 n;
u32 cts;
u8 channel_status;
u32 sample_freq;
u32 force_sample_freq;
};
struct it6616 {
struct i2c_client *hdmi_i2c;
struct i2c_client *mipi_i2c;
struct i2c_client *edid_i2c;
struct regmap *hdmi_regmap;
struct regmap *mipi_regmap;
struct regmap *edid_regmap;
u8 attr_hdmi_reg_bank;
struct class *hdmirx_class;
struct device *dev;
struct device *classdev;
struct v4l2_fwnode_bus_mipi_csi2 bus;
struct v4l2_subdev sd;
struct media_pad pad;
struct v4l2_ctrl_handler hdl;
struct i2c_client *i2c_client;
struct mutex confctl_mutex;
struct v4l2_ctrl *detect_tx_5v_ctrl;
struct v4l2_ctrl *audio_sampling_rate_ctrl;
struct v4l2_ctrl *audio_present_ctrl;
struct v4l2_ctrl *link_freq;
struct v4l2_ctrl *pixel_rate;
struct v4l2_dv_timings timings;
struct clk *xvclk;
struct gpio_desc *reset_gpio;
struct gpio_desc *power_gpio;
struct delayed_work work_i2c_poll;
const char *module_facing;
const char *module_name;
const char *len_name;
const struct it6616_mode *cur_mode;
bool nosignal;
bool is_audio_present;
u32 mbus_fmt_code;
u8 csi_lanes_in_use;
u32 module_index;
u32 audio_sampling_rate;
bool hdmi_rx_video_stable;
bool hdmi_rx_hdcp_state;
bool mipi_tx_video_stable;
bool mipi_tx_enable_manual_adjusted_d_phy;
u8 audio_stable;
u8 audio_interface;
u8 rs_level;
struct mipi_bus mipi;
struct color_format color_fmt;
struct video_info vinfo;
struct audio_info ainfo;
u8 edid_data[256];
u16 edid_len;
u8 audio_sampling_freq_error_count;
u8 audio_i2s_justified;
u8 mipi_tx_enable_auto_adjust_lane_count;
u8 mipi_tx_enable_h_fire_packet;
u8 mipi_tx_enable_initial_fire_lp_cmd;
u8 hdmi_rx_disable_pixel_repeat;
bool mipi_tx_enable_continuous_clock;
u8 mipi_tx_enable_mipi_output;
u8 hdmi_rx_video_stable_condition;
bool power_on;
u32 rclk;
u32 tx_mclk;
u32 tx_rclk;
u32 tx_pclk;
u32 tx_mclk_ps;
struct hdmi_avi_infoframe avi_if;
struct hdmi_avi_infoframe avi_if_prev;
enum hdmi_colorspace output_colorspace;
};
static const struct v4l2_dv_timings_cap it6616_timings_cap = {
.type = V4L2_DV_BT_656_1120,
.reserved = { 0 },
V4L2_INIT_BT_TIMINGS(1, 10000, 1, 10000, 0, 400000000,
V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT,
V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED |
V4L2_DV_BT_CAP_REDUCED_BLANKING |
V4L2_DV_BT_CAP_CUSTOM)
};
struct it6616_mode {
u32 width;
u32 height;
struct v4l2_fract max_fps;
u32 hts_def;
u32 vts_def;
u32 exp_def;
};
static const struct it6616_mode supported_modes[] = {
{
.width = 3840,
.height = 2160,
.max_fps = {
.numerator = 10000,
.denominator = 300000,
},
.hts_def = 4400,
.vts_def = 2250,
}, {
.width = 1920,
.height = 1080,
.max_fps = {
.numerator = 10000,
.denominator = 600000,
},
.hts_def = 2200,
.vts_def = 1125,
}, {
.width = 1920,
.height = 540,
.max_fps = {
.numerator = 10000,
.denominator = 600000,
},
.hts_def = 2200,
.vts_def = 562,
}, {
.width = 1280,
.height = 720,
.max_fps = {
.numerator = 10000,
.denominator = 600000,
},
.hts_def = 1650,
.vts_def = 750,
}, {
.width = 720,
.height = 576,
.max_fps = {
.numerator = 10000,
.denominator = 500000,
},
.hts_def = 864,
.vts_def = 625,
}, {
.width = 720,
.height = 480,
.max_fps = {
.numerator = 10000,
.denominator = 600000,
},
.hts_def = 858,
.vts_def = 525,
}, {
.width = 720,
.height = 288,
.max_fps = {
.numerator = 10000,
.denominator = 500000,
},
.hts_def = 864,
.vts_def = 312,
}, {
.width = 720,
.height = 240,
.max_fps = {
.numerator = 10000,
.denominator = 600000,
},
.hts_def = 858,
.vts_def = 262,
},
};
static const u8 default_edid[] = {
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
0x49, 0x78, 0x01, 0x88, 0x00, 0x88, 0x88, 0x88,
0x1C, 0x1F, 0x01, 0x03, 0x80, 0x00, 0x00, 0x78,
0x0A, 0x0D, 0xC9, 0xA0, 0x57, 0x47, 0x98, 0x27,
0x12, 0x48, 0x4C, 0x00, 0x00, 0x00, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3A,
0x80, 0x18, 0x71, 0x38, 0x2D, 0x40, 0x58, 0x2C,
0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E,
0x01, 0x1D, 0x00, 0x72, 0x51, 0xD0, 0x1E, 0x20,
0x6E, 0x28, 0x55, 0x00, 0xC4, 0x8E, 0x21, 0x00,
0x00, 0x1E, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x54,
0x37, 0x34, 0x39, 0x2D, 0x66, 0x48, 0x44, 0x37,
0x32, 0x30, 0x0A, 0x20, 0x00, 0x00, 0x00, 0xFD,
0x00, 0x14, 0x78, 0x01, 0xFF, 0x1D, 0x00, 0x0A,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x64,
0x02, 0x03, 0x1C, 0x71, 0x49, 0x90, 0x04, 0x02,
0x5F, 0x11, 0x07, 0x05, 0x16, 0x22, 0x23, 0x09,
0x07, 0x01, 0x83, 0x01, 0x00, 0x00, 0x65, 0x03,
0x0C, 0x00, 0x10, 0x00, 0x8C, 0x0A, 0xD0, 0x8A,
0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00,
0x13, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0xD8, 0x09,
0x80, 0xA0, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x60,
0xA2, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x18,
0x8C, 0x0A, 0xD0, 0x90, 0x20, 0x40, 0x31, 0x20,
0x0C, 0x40, 0x55, 0x00, 0x48, 0x39, 0x00, 0x00,
0x00, 0x18, 0x01, 0x1D, 0x80, 0x18, 0x71, 0x38,
0x2D, 0x40, 0x58, 0x2C, 0x45, 0x00, 0xC0, 0x6C,
0x00, 0x00, 0x00, 0x18, 0x01, 0x1D, 0x80, 0x18,
0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00,
0xC0, 0x6C, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB3,
};
static const struct bus_config it6616_csi_bus_cfg[] = {
{4, CSI_RGB10b, 0x8F, {0xEE, 0xEE, 0xEE}},
{4, CSI_RGB888, 0x23, {0x65, 0x22, 0x22}},
{4, CSI_RGB666, 0x89, {0xE8, 0xE8, 0xE8}},
{4, CSI_RGB565, 0x22, {0x63, 0x21, 0x00}},
{4, CSI_RGB555, 0x22, {0x63, 0x21, 0x00}},
{4, CSI_RGB444, 0x22, {0x63, 0x21, 0x00}},
{4, CSI_YCbCr4208b, 0x23, {0x65, 0x22, 0x22}},
{4, CSI_YCbCr4228b, 0x22, {0x63, 0x21, 0x00}},
{4, CSI_YCbCr42210b, 0x45, {0x64, 0x64, 0x64}},
{4, CSI_YCbCr42212b, 0x23, {0x65, 0x22, 0x22}},
{2, CSI_RGB10b, 0x4F, {0x6E, 0x6E, 0x6E}},
{2, CSI_RGB888, 0x13, {0x6B, 0x25, 0x25}},
{2, CSI_RGB666, 0x49, {0x68, 0x68, 0x68}},
{2, CSI_RGB565, 0x12, {0x67, 0x23, 0x01}},
{2, CSI_RGB555, 0x12, {0x67, 0x23, 0x01}},
{2, CSI_RGB444, 0x12, {0x67, 0x23, 0x01}},
{2, CSI_YCbCr4208b, 0x13, {0x6B, 0x25, 0x25}},
{2, CSI_YCbCr4228b, 0x12, {0x67, 0x23, 0x01}},
{2, CSI_YCbCr42210b, 0x25, {0x69, 0x24, 0x24}},
{2, CSI_YCbCr42212b, 0x13, {0x6B, 0x25, 0x25}},
{1, CSI_RGB10b, 0x2F, {0x7D, 0x2E, 0x2E}},
{1, CSI_RGB888, 0x03, {0x77, 0x2B, 0x05}},
{1, CSI_RGB666, 0x29, {0x71, 0x28, 0x28}},
{1, CSI_RGB565, 0x02, {0x6F, 0x27, 0x03}},
{1, CSI_RGB555, 0x02, {0x6F, 0x27, 0x03}},
{1, CSI_RGB444, 0x02, {0x6F, 0x27, 0x03}},
{1, CSI_YCbCr4208b, 0x03, {0x77, 0x2B, 0x05}},
{1, CSI_YCbCr4228b, 0x02, {0x6F, 0x27, 0x03}},
{1, CSI_YCbCr42210b, 0x15, {0x73, 0x29, 0x04}},
{1, CSI_YCbCr42212b, 0x03, {0x77, 0x2B, 0x05}},
{0, 0, 0, {0, 0, 0}},
};
static const struct bus_config it6616_dsi_bus_cfg[] = {
{4, DSI_RGB_36b, 0x19, {0x68, 0x68, 0x68}},
{4, DSI_RGB_30b, 0x2F, {0xEE, 0xEE, 0xEE}},
{4, DSI_RGB_24b, 0x03, {0x65, 0x22, 0x22}},
{4, DSI_RGB_18b_L, 0x03, {0x65, 0x22, 0x22}},
{4, DSI_RGB_18b, 0x29, {0xE8, 0xE8, 0xE8}},
{2, DSI_RGB_36b, 0x19, {0x71, 0x28, 0x28}},
{2, DSI_RGB_30b, 0x2F, {0x6E, 0x6E, 0x6E}},
{2, DSI_RGB_24b, 0x03, {0x6B, 0x25, 0x25}},
{2, DSI_RGB_18b_L, 0x03, {0x6B, 0x25, 0x25}},
{2, DSI_RGB_18b, 0x29, {0x68, 0x68, 0x68}},
{1, DSI_RGB_36b, 0x19, {0x31, 0x31, 0x08}},
{1, DSI_RGB_30b, 0x2F, {0x7D, 0x2E, 0x2E}},
{1, DSI_RGB_24b, 0x03, {0x77, 0x2B, 0x05}},
{1, DSI_RGB_18b_L, 0x03, {0x77, 0x2B, 0x05}},
{1, DSI_RGB_18b, 0x29, {0x71, 0x28, 0x28}},
//add in D0 yuv422
{4, DSI_YCbCr_16b, 0x02, {0x63, 0x21, 0x00}},
{4, DSI_YCbCr_20b, 0x03, {0x65, 0x22, 0x22}},
{4, DSI_YCbCr_24b, 0x03, {0x65, 0x22, 0x22}},
{2, DSI_YCbCr_16b, 0x02, {0x67, 0x23, 0x01}},
{2, DSI_YCbCr_20b, 0x03, {0x6B, 0x25, 0x25}},
{2, DSI_YCbCr_24b, 0x03, {0x6B, 0x25, 0x25}},
{1, DSI_YCbCr_16b, 0x02, {0x6F, 0x27, 0x03}},
{1, DSI_YCbCr_20b, 0x03, {0x77, 0x2B, 0x05}},
{1, DSI_YCbCr_24b, 0x03, {0x77, 0x2B, 0x05}},
{0, 0, 0, {0, 0, 0}},
};
static const u8 mipi_color_space[][10] = {
{
CSI_RGB10b,
CSI_RGB888,
CSI_RGB666,
CSI_RGB565,
CSI_RGB555,
CSI_RGB444,
CSI_YCbCr4208b,
CSI_YCbCr4228b,
CSI_YCbCr42210b,
CSI_YCbCr42212b
}, {
DSI_RGB_36b,
DSI_RGB_30b,
DSI_RGB_24b,
DSI_RGB_18b_L,
DSI_RGB_18b,
DSI_YCbCr_16b,
DSI_YCbCr_20b,
DSI_YCbCr_24b,
0xFF,
0xFF
}
};
static char *mipi_color_space_name[][10] = {
{
"CSI_RGB10b",
"CSI_RGB888",
"CSI_RGB666",
"CSI_RGB565",
"CSI_RGB555",
"CSI_RGB444",
"CSI_YCbCr4208b",
"CSI_YCbCr4228b",
"CSI_YCbCr42210b",
"CSI_YCbCr42212b"
}, {
"DSI_RGB_36b",
"DSI_RGB_30b",
"DSI_RGB_24b",
"DSI_RGB_18b_L",
"DSI_RGB_18b",
"DSI_YCbCr_16b",
"DSI_YCbCr_20b",
"DSI_YCbCr_24b",
"can not find color space",
"can not find color space"
}
};
static const u8 csc_matrix[][22] = {
{
0x00, 0x80, 0x10, 0xB2, 0x04, 0x65, 0x02, 0xE9, 0x00, 0x93, 0x3C,
0x18, 0x04, 0x55, 0x3F, 0x49, 0x3D, 0x9F, 0x3E, 0x18, 0x04, 0x00
}, {
0x10, 0x80, 0x10, 0x09, 0x04, 0x0E, 0x02, 0xC9, 0x00, 0x0F, 0x3D,
0x84, 0x03, 0x6D, 0x3F, 0xAB, 0x3D, 0xD1, 0x3E, 0x84, 0x03, 0x00
}, {
0x00, 0x80, 0x10, 0xB8, 0x05, 0xB4, 0x01, 0x94, 0x00, 0x4A, 0x3C,
0x17, 0x04, 0x9F, 0x3F, 0xD9, 0x3C, 0x10, 0x3F, 0x17, 0x04, 0x00
}, {
0x10, 0x80, 0x10, 0xEA, 0x04, 0x77, 0x01, 0x7F, 0x00, 0xD0, 0x3C,
0x83, 0x03, 0xAD, 0x3F, 0x4B, 0x3D, 0x32, 0x3F, 0x83, 0x03, 0x00
}, {
0x00, 0x00, 0x00, 0x00, 0x08, 0x6B, 0x3A, 0x50, 0x3D, 0x00, 0x08,
0xF5, 0x0A, 0x02, 0x00, 0x00, 0x08, 0xFD, 0x3F, 0xDA, 0x0D, 0x00
}, {
0x04, 0x00, 0xA7, 0x4F, 0x09, 0x81, 0x39, 0xDD, 0x3C, 0x4F, 0x09,
0xC4, 0x0C, 0x01, 0x00, 0x4F, 0x09, 0xFD, 0x3F, 0x1F, 0x10, 0x00
}, {
0x00, 0x00, 0x00, 0x00, 0x08, 0x55, 0x3C, 0x88, 0x3E, 0x00, 0x08,
0x51, 0x0C, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x84, 0x0E, 0x00
}, {
0x04, 0x00, 0xA7, 0x4F, 0x09, 0xBA, 0x3B, 0x4B, 0x3E, 0x4F, 0x09,
0x57, 0x0E, 0x02, 0x00, 0x4F, 0x09, 0xFE, 0x3F, 0xE8, 0x10, 0x00
}, {
0x04, 0x00, 0xA7, 0x4F, 0x09, 0xCC, 0x3A, 0x7E, 0x3E, 0x4F, 0x09,
0x69, 0x0D, 0x0B, 0x00, 0x4F, 0x09, 0xFE, 0x3F, 0x1D, 0x11, 0x00
}, {
0x10, 0x10, 0x00, 0xe0, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xe0, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x06, 0x10
}, {
0xED, 0xED, 0x00, 0x50, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x50, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x09, 0xED
}
};
struct it6616_reg_set it6616_hdmi_init_table[] = {
{0x0F, 0xFF, 0x00},
{0x22, 0xFF, 0x08},
{0x22, 0xFF, 0x17},
{0x23, 0xFF, 0x1F},
{0x2B, 0xFF, 0x1F},
{0x24, 0xFF, 0xF8},
{0x22, 0xFF, 0x10},
{0x23, 0xFF, 0xA0},
{0x2B, 0xFF, 0xA0},
{0x24, 0xFF, 0x00},
{0x2F, 0xFF, 0xAD},
{0x34, 0xFF, 0x00},
{0x0F, 0xFF, 0x03},
{0xAA, 0xFF, 0xEC},
{0x0F, 0xFF, 0x00},
{0x0F, 0xFF, 0x03},
{0xAC, 0xFF, 0x40},
{0x0F, 0xFF, 0x00},
{0x3A, 0xFF, 0x89},
{0x43, 0xFF, 0x01},
{0x0F, 0xFF, 0x04},
{0x43, 0xFF, 0x01},
{0x3A, 0xFF, 0x89},
{0x0F, 0xFF, 0x03},
{0xA8, 0xFF, 0x0B},
{0x0F, 0xFF, 0x00},
{0x4F, 0xFF, 0x84},
{0x44, 0xFF, 0x19},
{0x46, 0xFF, 0x15},
{0x47, 0xFF, 0x88},
{0xD9, 0xFF, 0x00},
{0xF0, 0xFF, 0x78},
{0xF1, 0xFF, 0x10},
{0x0F, 0xFF, 0x03},
{0x3A, 0xFF, 0x02},
{0x0F, 0xFF, 0x00},
{0x28, 0xFF, 0x88},
{0x6E, 0xFF, 0x00},
{0x77, 0xFF, 0x87},
{0x7B, 0xFF, 0x00},
{0x86, 0xFF, 0x00},
{0x0F, 0xFF, 0x00},
{0x36, 0xFF, 0x06},
{0x8F, 0xFF, 0x41},
{0x0F, 0xFF, 0x01},
{0xC0, 0xFF, 0x42},
{0xC4, 0x70, 3<<4},
{0xC4, BIT(7), 0<<7},
{0xC7, 0xFF, 0x7F},
{0xC8, 0xFF, 0x1F},
{0xC9, 0xFF, 0x90},
{0xCA, 0xFF, 0x99},
{0x0F, 0xFF, 0x00},
{0x86, 0x0C, 0x08},
{0x81, BIT(7), BIT(7)},
{BANK, BANKM, 0x01},
{0x10, 0xFF, 0x00},
{0x11, 0xFF, 0x00},
{0x12, 0xFF, 0x00},
{0x13, 0xFF, 0x00},
{0x28, 0xFF, 0x00},
{0x29, 0xFF, 0x00},
{0x2A, 0xFF, 0x00},
{0x2B, 0xFF, 0x00},
{0x2C, 0xFF, 0x00},
{0xC0, 0xC0, 0x40},
{BANK, BANKM, 0x03},
{0xE3, 0xFF, 0x07},
{0x27, 0xFF, DEFAULT_RS_LEVEL},
{0x28, 0xFF, DEFAULT_RS_LEVEL},
{0x29, 0xFF, DEFAULT_RS_LEVEL},
{0xA7, BIT(6), BIT(6)},
{0x21, BIT(2), BIT(2)},
{0xF8, 0xFF, 0xC3},
{0xF8, 0xFF, 0xA5},
{BANK, BANKM, 0x01},
{0x5F, 0xFF, 0x04},
{0x58, 0xFF, 0x12},
{0x58, 0xFF, 0x02},
{0x5F, 0xFF, 0x00},
{BANK, BANKM, 0x00},
{0xF8, 0xFF, 0xFF},
{BANK, BANKM, 0x04},
{0x3C, BIT(5), 0x000},
{BANK, BANKM, 0x00},
{0x91, BIT(6), BIT(6)},
{BANK, BANKM, 0x03},
{0xF0, 0xFF, 0xC0},
{BANK, BANKM, 0x00},
{0x21, BIT(6), BIT(6)},
{0xCE, 0x30, 0x00},
{BANK, BANKM, 0x04},
{0xCE, 0x30, 0x00},
{0x42, 0xE0, 0xC0},
{BANK, BANKM, 0x00},
{0x42, 0xE0, 0xC0},
{0x7B, BIT(4), BIT(4)},
{0x3C, 0x21, 0x00},
{0x3B, 0xFF, 0x23},
{0xF6, 0xFF, 0x08},
{BANK, BANKM, 0x04},
{0x3C, 0x21, 0x00},
{0x3B, 0xFF, 0x23},
{BANK, BANKM, 0x00},
{0x59, 0xFF, 0x00},
{0xFF, 0xFF, 0xFF},
};
static struct it6616 *g_it6616;
static void it6616_format_change(struct v4l2_subdev *sd);
static int it6616_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd);
static int it6616_s_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
static inline struct it6616 *to_it6616(struct v4l2_subdev *sd)
{
return container_of(sd, struct it6616, sd);
}
static u8 it6616_hdmi_read(struct regmap *regmap, u8 reg)
{
unsigned int val;
regmap_read(regmap, reg, &val);
return (u8)val;
}
static int it6616_hdmi_write(struct regmap *regmap, u8 reg, u8 value)
{
return regmap_write(regmap, reg, value);
}
static int it6616_hdmi_set(struct regmap *regmap, u8 reg, u8 mask, u8 value)
{
return regmap_update_bits(regmap, reg, mask, value);
}
static u8 it6616_mipi_tx_read(struct regmap *regmap, u8 reg)
{
unsigned int val;
regmap_read(regmap, reg, &val);
return (u8)val;
}
static int it6616_mipi_tx_write(struct regmap *regmap, u8 reg, u8 value)
{
return regmap_write(regmap, reg, value);
}
static int it6616_mipi_tx_set_bits(struct regmap *regmap, u8 reg, u8 mask, u8 value)
{
return regmap_update_bits(regmap, reg, mask, value);
}
static int it6616_hdmi_edid_read(struct regmap *regmap, u8 *edid, int start, int length)
{
return regmap_bulk_read(regmap, start, edid, length);
}
static int it6616_hdmi_edid_write(struct regmap *regmap, u8 *edid, int start, int length)
{
return regmap_bulk_write(regmap, start, edid, length);
}
static void it6616_hdmi_chgbank(struct regmap *regmap, u8 bank)
{
it6616_hdmi_set(regmap, 0x0F, 0x07, (u8)(bank & 0x07));
}
static void it6616_hdim_write_table(struct regmap *regmap, struct it6616_reg_set *tdata)
{
while (tdata->ucAddr != 0xff) {
if (tdata->andmask == 0xff)
it6616_hdmi_write(regmap, tdata->ucAddr, tdata->ucValue);
else
it6616_hdmi_set(regmap, tdata->ucAddr, tdata->andmask, tdata->ucValue);
tdata++;
}
}
static bool it6616_mipi_tx_get_video_stable(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
u8 reg09h;
reg09h = it6616_mipi_tx_read(mipi, 0x09);
return !!(reg09h & 0x40);
}
static void it6616_mipitx_init_bus_para(struct it6616 *it6616)
{
struct bus_para *bus_para = &it6616->mipi.bus_para_config;
u8 lpx = 0x03, mipi_tx_hs_prepare = 0x01;
bus_para->swap_pn = MIPI_TX_PN_SWAP;
bus_para->swap_lan = MIPI_TX_LANE_SWAP;
bus_para->pclk_inv = MIPI_TX_ENABLE_PCLK_INV;
bus_para->mclk_inv = MIPI_TX_ENABLE_MCLK_INV;
bus_para->lpx_num =
it6616->mipi_tx_enable_manual_adjusted_d_phy ? MIPI_TX_LPX : lpx;
bus_para->mipi_tx_hs_prepare =
it6616->mipi_tx_enable_manual_adjusted_d_phy ?
MIPI_TX_HS_PREPARE : mipi_tx_hs_prepare;
bus_para->tx_sel_line_start = true;
bus_para->tx_bypass = MIPI_TX_ENABLE_BY_PASS;
bus_para->tx_enable_hs_pre_1T = MIPI_TX_ENABLE_HS_PRE_1T;
bus_para->tx_vlpm_length = MIPI_TX_V_LPM_LENGTH;
bus_para->tx_hlpm_length = MIPI_TX_H_LPM_LENGTH;
bus_para->tx_enable_h_enter_lpm = MIPI_TX_ENABLE_H_ENTER_LPM;
}
static int it6616_get_dcs_ecc(int dcshead)
{
int q0, q1, q2, q3, q4, q5;
q0 = ((dcshead >> 0) & (0x01)) ^ ((dcshead >> 1) & (0x01)) ^
((dcshead >> 2) & (0x01)) ^ ((dcshead >> 4) & (0x01)) ^
((dcshead >> 5) & (0x01)) ^ ((dcshead >> 7) & (0x01)) ^
((dcshead >> 10) & (0x01)) ^ ((dcshead >> 11) & (0x01)) ^
((dcshead >> 13) & (0x01)) ^ ((dcshead >> 16) & (0x01)) ^
((dcshead >> 20) & (0x01)) ^ ((dcshead >> 21) & (0x01)) ^
((dcshead >> 22) & (0x01)) ^ ((dcshead >> 23) & (0x01));
q1 = ((dcshead >> 0) & (0x01)) ^ ((dcshead >> 1) & (0x01)) ^
((dcshead >> 3) & (0x01)) ^ ((dcshead >> 4) & (0x01)) ^
((dcshead >> 6) & (0x01)) ^ ((dcshead >> 8) & (0x01)) ^
((dcshead >> 10) & (0x01)) ^ ((dcshead >> 12) & (0x01)) ^
((dcshead >> 14) & (0x01)) ^ ((dcshead >> 17) & (0x01)) ^
((dcshead >> 20) & (0x01)) ^ ((dcshead >> 21) & (0x01)) ^
((dcshead >> 22) & (0x01)) ^ ((dcshead >> 23) & (0x01));
q2 = ((dcshead >> 0) & (0x01)) ^ ((dcshead >> 2) & (0x01)) ^
((dcshead >> 3) & (0x01)) ^ ((dcshead >> 5) & (0x01)) ^
((dcshead >> 6) & (0x01)) ^ ((dcshead >> 9) & (0x01)) ^
((dcshead >> 11) & (0x01)) ^ ((dcshead >> 12) & (0x01)) ^
((dcshead >> 15) & (0x01)) ^ ((dcshead >> 18) & (0x01)) ^
((dcshead >> 20) & (0x01)) ^ ((dcshead >> 21) & (0x01)) ^
((dcshead >> 22) & (0x01));
q3 = ((dcshead >> 1) & (0x01)) ^ ((dcshead >> 2) & (0x01)) ^
((dcshead >> 3) & (0x01)) ^ ((dcshead >> 7) & (0x01)) ^
((dcshead >> 8) & (0x01)) ^ ((dcshead >> 9) & (0x01)) ^
((dcshead >> 13) & (0x01)) ^ ((dcshead >> 14) & (0x01)) ^
((dcshead >> 15) & (0x01)) ^ ((dcshead >> 19) & (0x01)) ^
((dcshead >> 20) & (0x01)) ^ ((dcshead >> 21) & (0x01)) ^
((dcshead >> 23) & (0x01));
q4 = ((dcshead >> 4) & (0x01)) ^ ((dcshead >> 5) & (0x01)) ^
((dcshead >> 6) & (0x01)) ^ ((dcshead >> 7) & (0x01)) ^
((dcshead >> 8) & (0x01)) ^ ((dcshead >> 9) & (0x01)) ^
((dcshead >> 16) & (0x01)) ^ ((dcshead >> 17) & (0x01)) ^
((dcshead >> 18) & (0x01)) ^ ((dcshead >> 19) & (0x01)) ^
((dcshead >> 20) & (0x01)) ^ ((dcshead >> 22) & (0x01)) ^
((dcshead >> 23) & (0x01));
q5 = ((dcshead >> 10) & (0x01)) ^ ((dcshead >> 11) & (0x01)) ^
((dcshead >> 12) & (0x01)) ^ ((dcshead >> 13) & (0x01)) ^
((dcshead >> 14) & (0x01)) ^ ((dcshead >> 15) & (0x01)) ^
((dcshead >> 16) & (0x01)) ^ ((dcshead >> 17) & (0x01)) ^
((dcshead >> 18) & (0x01)) ^ ((dcshead >> 19) & (0x01)) ^
((dcshead >> 21) & (0x01)) ^ ((dcshead >> 22) & (0x01)) ^
((dcshead >> 23) & (0x01));
return (q0 + (q1 << 1) + (q2 << 2) + (q3 << 3) + (q4 << 4) + (q5 << 5));
}
static int it6616_dcs_crc8t(int crcq16b, const u8 crc8bin)
{
int lfsrout = 0, lfsr[16], i;
lfsr[15] = ((crc8bin >> 7) & 0x01) ^ ((crc8bin >> 3) & 0x01) ^
((crcq16b >> 7) & 0x01) ^ ((crcq16b >> 3) & 0x01);
lfsr[14] = ((crc8bin >> 6) & 0x01) ^ ((crc8bin >> 2) & 0x01) ^
((crcq16b >> 6) & 0x01) ^ ((crcq16b >> 2) & 0x01);
lfsr[13] = ((crc8bin >> 5) & 0x01) ^ ((crc8bin >> 1) & 0x01) ^
((crcq16b >> 5) & 0x01) ^ ((crcq16b >> 1) & 0x01);
lfsr[12] = ((crc8bin >> 4) & 0x01) ^ ((crc8bin >> 0) & 0x01) ^
((crcq16b >> 4) & 0x01) ^ ((crcq16b >> 0) & 0x01);
lfsr[11] = ((crc8bin >> 3) & 0x01) ^ ((crcq16b >> 3) & 0x01);
lfsr[10] = ((crc8bin >> 7) & 0x01) ^ ((crc8bin >> 3) & 0x01) ^
((crc8bin >> 2) & 0x01) ^ ((crcq16b >> 7) & 0x01) ^
((crcq16b >> 3) & 0x01) ^ ((crcq16b >> 2) & 0x01);
lfsr[9] = ((crc8bin >> 6) & 0x01) ^ ((crc8bin >> 2) & 0x01) ^
((crc8bin >> 1) & 0x01) ^ ((crcq16b >> 6) & 0x01) ^
((crcq16b >> 2) & 0x01) ^ ((crcq16b >> 1) & 0x01);
lfsr[8] = ((crc8bin >> 5) & 0x01) ^ ((crc8bin >> 1) & 0x01) ^
((crc8bin >> 0) & 0x01) ^ ((crcq16b >> 5) & 0x01) ^
((crcq16b >> 1) & 0x01) ^ ((crcq16b >> 0) & 0x01);
lfsr[7] = ((crc8bin >> 4) & 0x01) ^ ((crc8bin >> 0) & 0x01) ^
((crcq16b >> 15) & 0x01) ^ ((crcq16b >> 4) & 0x01) ^
((crcq16b >> 0) & 0x01);
lfsr[6] = ((crc8bin >> 3) & 0x01) ^
((crcq16b >> 14) & 0x01) ^ ((crcq16b >> 3) & 0x01);
lfsr[5] = ((crc8bin >> 2) & 0x01) ^
((crcq16b >> 13) & 0x01) ^ ((crcq16b >> 2) & 0x01);
lfsr[4] = ((crc8bin >> 1) & 0x01) ^
((crcq16b >> 12) & 0x01) ^ ((crcq16b >> 1) & 0x01);
lfsr[3] = ((crc8bin >> 7) & 0x01) ^ ((crc8bin >> 3) & 0x01) ^
((crc8bin >> 0) & 0x01) ^ ((crcq16b >> 11) & 0x01) ^
((crcq16b >> 7) & 0x01) ^ ((crcq16b >> 3) & 0x01) ^
((crcq16b >> 0) & 0x01);
lfsr[2] = ((crc8bin >> 6) & 0x01) ^ ((crc8bin >> 2) & 0x01) ^
((crcq16b >> 10) & 0x01) ^ ((crcq16b >> 6) & 0x01) ^
((crcq16b >> 2) & 0x01);
lfsr[1] = ((crc8bin >> 5) & 0x01) ^ ((crc8bin >> 1) & 0x01) ^
((crcq16b >> 9) & 0x01) ^ ((crcq16b >> 5) & 0x01) ^
((crcq16b >> 1) & 0x01);
lfsr[0] = ((crc8bin >> 4) & 0x01) ^ ((crc8bin >> 0) & 0x01) ^
((crcq16b >> 8) & 0x01) ^ ((crcq16b >> 4) & 0x01) ^
((crcq16b >> 0) & 0x01);
for (i = 0; i < ARRAY_SIZE(lfsr); i++)
lfsrout = lfsrout + (lfsr[i] << i);
return lfsrout;
}
static int it6616_get_dcs_crc(int bytenum, const u8 *crcbyte)
{
int i, crctemp = 0xFFFF;
for (i = 0; i <= bytenum - 1; i++)
crctemp = it6616_dcs_crc8t(crctemp, crcbyte[i]);
return crctemp;
}
static void it6616_mipi_tx_setup_long_packet_header(struct mipi_packet *pheader,
u32 word_count)
{
int header;
pheader->word_count_h = word_count >> 8;
pheader->word_count_l = (u8)word_count;
header = pheader->data_id | pheader->word_count_h << 16 | pheader->word_count_l << 8;
pheader->ecc = it6616_get_dcs_ecc(header);
}
static enum mipi_packet_size it6616_mipi_tx_get_packet_size(struct it6616 *it6616,
const struct dcs_setting_entry *dcs_setting_table,
enum dcs_cmd_name cmd_name)
{
struct device *dev = &it6616->mipi_i2c->dev;
u8 i, size = ARRAY_SIZE(packet_size_data_id_map);
for (i = 0; i < size; i++) {
if (dcs_setting_table[cmd_name].data_id == packet_size_data_id_map[i].data_id)
break;
}
if (i == size) {
if (dcs_setting_table[cmd_name].count == 0) {
dev_err(dev, "error! cmd index: %d count = 0", cmd_name);
return UNKNOWN_PACKET;
} else if (dcs_setting_table[cmd_name].count < 3) {
return SHORT_PACKET;
} else {
return LONG_PACKET;
}
}
return packet_size_data_id_map[i].packet_size;
}
static void it6616_mipi_tx_get_packet_fire_state(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
int lp_cmd_fifo, link_data_fifo;
lp_cmd_fifo = it6616_mipi_tx_read(mipi, 0x71) & 0x0F;
link_data_fifo = it6616_mipi_tx_read(mipi, 0x72);
if (lp_cmd_fifo != 0)
dev_err(dev,
"error! fire low power cmd fail, remain bytes not fire, reg0x71:0x%02x",
lp_cmd_fifo);
if (link_data_fifo != 0)
dev_err(dev,
"error! fire link0 low power data fail, remain %d bytes not fire, reg0x72:0x%02x",
link_data_fifo, link_data_fifo);
}
static void it6616_mipi_tx_setup_packet(struct it6616 *it6616, struct mipi_packet *pheader,
const struct dcs_setting_entry *dcs_setting_table,
enum dcs_cmd_name cmd_name)
{
struct device *dev = &it6616->mipi_i2c->dev;
int short_cmd;
enum mipi_packet_size packet_size;
pheader->data_id = dcs_setting_table[cmd_name].data_id;
packet_size = it6616_mipi_tx_get_packet_size(it6616, dcs_setting_table, cmd_name);
if (packet_size == UNKNOWN_PACKET) {
dev_err(dev, "error! unknown packet size and check dcs table parameter");
return;
}
if (packet_size == SHORT_PACKET) {
pheader->word_count_l = dcs_setting_table[cmd_name].para_list[0];
pheader->word_count_h = dcs_setting_table[cmd_name].para_list[1];
short_cmd = pheader->data_id | pheader->word_count_l << 8 |
pheader->word_count_h << 16;
pheader->ecc = it6616_get_dcs_ecc(short_cmd);
}
if (packet_size == LONG_PACKET)
it6616_mipi_tx_setup_long_packet_header(pheader, dcs_setting_table[cmd_name].count);
}
static inline void it6616_mipi_tx_fire_packet(struct it6616 *it6616,
const struct dcs_setting_entry *dcs_setting_table,
enum dcs_cmd_name cmd_name)
{
struct regmap *mipi = it6616->mipi_regmap;
it6616_mipi_tx_write(mipi, 0x75, dcs_setting_table[cmd_name].cmd);
}
static void it6616_mipi_tx_setup_packet_process(struct it6616 *it6616,
const struct dcs_setting_entry *dcs_setting_table,
enum dcs_cmd_name cmd_name,
enum mipi_tx_lp_cmd_header header_select)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
struct v4l2_subdev *sd = &it6616->sd;
struct mipi_packet packet;
enum mipi_packet_size packet_size;
u32 long_packet_checksum;
int i, header_crc, data_count;
if (!header_select) {
dev_err(dev, "no header packet");
for (i = 0; i < dcs_setting_table[cmd_name].count; i++) {
it6616_mipi_tx_write(mipi, 0x73, dcs_setting_table[cmd_name].para_list[i]);
v4l2_dbg(1, debug, sd, "data[%d]: 0x%02x ", i,
dcs_setting_table[cmd_name].para_list[i]);
}
header_crc = 0;
goto short_packet;
}
it6616_mipi_tx_setup_packet(it6616, &packet, dcs_setting_table, cmd_name);
packet_size = it6616_mipi_tx_get_packet_size(it6616, dcs_setting_table, cmd_name);
v4l2_dbg(1, debug, sd, "%s packet\n\r", packet_size == LONG_PACKET ? "long" : "short");
for (i = 0; i < sizeof(packet); i++) {
it6616_mipi_tx_write(mipi, 0x73, ((u8 *)(&packet))[i]);
v4l2_dbg(1, debug, sd, "data[%d]: 0x%02x ", i, ((u8 *)(&packet))[i]);
msleep(20);
}
if (packet_size == SHORT_PACKET) {
header_crc = 2;
goto short_packet;
}
header_crc = sizeof(packet) + 2;
long_packet_checksum = it6616_get_dcs_crc(dcs_setting_table[cmd_name].count,
dcs_setting_table[cmd_name].para_list);
for (i = 0; i < dcs_setting_table[cmd_name].count; i++) {
it6616_mipi_tx_write(mipi, 0x73, dcs_setting_table[cmd_name].para_list[i]);
v4l2_dbg(1, debug, sd,
"cmd para: 0x%02x", dcs_setting_table[cmd_name].para_list[i]);
}
it6616_mipi_tx_write(mipi, 0x73, (u8)long_packet_checksum);
it6616_mipi_tx_write(mipi, 0x73, (u8)(long_packet_checksum >> 8));
v4l2_dbg(1, debug, sd,
"long_packet_checksum_l: 0x%02x long_packet_checksum_h: 0x%02x",
(u8)long_packet_checksum, (u8)(long_packet_checksum >> 8));
short_packet:
data_count = dcs_setting_table[cmd_name].count + header_crc;
if (data_count == LP_CMD_FIFO_SIZE)
data_count = 1;
it6616_mipi_tx_write(mipi, 0x74, (it6616->mipi_tx_enable_h_fire_packet << 7) | data_count);
}
static void it6616_mipi_tx_write_lp_cmds(struct it6616 *it6616,
const struct dcs_setting_entry *dcs_setting_table,
int dcs_table_size, enum dcs_cmd_name start,
int count, enum mipi_tx_lp_cmd_header header_select)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
u8 header_size, i, data_count;
u8 enable_force_lp_mode = !it6616_mipi_tx_get_video_stable(it6616);
u8 lp_cmd_fifo_size[] = { LP_CMD_FIFO_SIZE };
it6616_mipi_tx_set_bits(mipi, 0x70, 0x03, 0x03);
it6616_mipi_tx_set_bits(mipi, 0x70, 0x03, 0x00);
if (enable_force_lp_mode) {
it6616_mipi_tx_set_bits(mipi, 0x05, 0x16, 0x16);
it6616_mipi_tx_set_bits(mipi, 0x05, 0x16, 0x10);
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x04);
}
it6616_mipi_tx_write(mipi, 0x3D, 0x00);
it6616_mipi_tx_write(mipi, 0x3E, enable_force_lp_mode ? 0x00 : 0x10);
it6616_mipi_tx_write(mipi, 0x3F, enable_force_lp_mode ? 0x30 : 0x90);
for (i = start; i < start + count; i++) {
dev_dbg(dev, "cmd:%d tx reg09:0x%02x", i, it6616_mipi_tx_read(mipi, 0x09));
if (i >= dcs_table_size)
goto complete_write_dcs;
if (dcs_setting_table[i].cmd_name == DELAY) {
msleep(dcs_setting_table[i].cmd);
continue;
}
header_size = header_select ?
((it6616_mipi_tx_get_packet_size(it6616, dcs_setting_table, i) ==
SHORT_PACKET) ? 2 : 6) : 0;
data_count = dcs_setting_table[i].count + header_size;
if (data_count > lp_cmd_fifo_size[0]) {
dev_err(dev, "error! lp cmd: %d, exceed cmd fifo", i);
continue;
}
it6616_mipi_tx_setup_packet_process(it6616, dcs_setting_table, i, header_select);
it6616_mipi_tx_fire_packet(it6616, dcs_setting_table, i);
if (enable_force_lp_mode)
it6616_mipi_tx_get_packet_fire_state(it6616);
}
msleep(20);
complete_write_dcs:
if (i >= dcs_table_size && (start + count > dcs_table_size))
dev_err(dev, "error! exceed maximum dcs setting table index");
if (enable_force_lp_mode) {
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x05, 0x16, 0x00);
}
msleep(20);
if (!enable_force_lp_mode)
it6616_mipi_tx_get_packet_fire_state(it6616);
}
static void it6616_enter_bus_turn_around(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
u8 enable_force_lp_mode = !it6616_mipi_tx_get_video_stable(it6616);
if (enable_force_lp_mode)
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x04);
it6616_mipi_tx_write(mipi, 0x3E, 0x10);
it6616_mipi_tx_write(mipi, 0x3F, 0x90);
it6616_mipi_tx_write(mipi, 0x74, it6616->mipi_tx_enable_h_fire_packet << 7);
it6616_mipi_tx_write(mipi, 0x75, LP_CMD_BTA);
if (enable_force_lp_mode)
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x00);
}
static __maybe_unused void it6616_mipi_read_panel(struct it6616 *it6616,
const struct dcs_setting_entry *dcs_setting_table,
int dcs_table_size, enum dcs_cmd_name cmd_name, u8 *buffer)
{
struct regmap *mipi = it6616->mipi_regmap;
int link0_data_count, i;
it6616_mipi_tx_write_lp_cmds(it6616, dcs_setting_table,
dcs_table_size, cmd_name, 1, CALC_HEADER);
it6616_enter_bus_turn_around(it6616);
msleep(20);
link0_data_count = it6616_mipi_tx_read(mipi, 0x7A);
for (i = 0; i < link0_data_count; i++)
buffer[i] = it6616_mipi_tx_read(mipi, 0x79);
}
static int it6616_mipitx_get_bus_config(struct it6616 *it6616)
{
struct mipi_bus *bus = &it6616->mipi;
const struct bus_config *bus_config_table;
struct bus_config *cfg = &bus->bus_para_config.cfg;
struct device *dev = &it6616->mipi_i2c->dev;
int i;
bus_config_table = (bus->bus_type == MIPI_CSI) ?
it6616_csi_bus_cfg : it6616_dsi_bus_cfg;
for (i = 0; bus_config_table[i].lane; i++) {
if (bus_config_table[i].lane == bus->lane_cnt &&
bus_config_table[i].type == bus->data_type) {
bus->bus_para_config.cfg = bus_config_table[i];
dev_dbg(dev, "mipi_get_bus_config = %d (%s)",
i, (bus->bus_type == MIPI_CSI) ? "MIPI_CSI" : "MIPI_DSI");
dev_dbg(dev, "{%X, %X, %X, %X, %X ,%X}",
cfg->lane,
cfg->type,
cfg->reg23_p2m,
cfg->regb0_div[0],
cfg->regb0_div[1],
cfg->regb0_div[2]);
return 0;
}
}
dev_err(dev, "mipi_get_bus_config error");
return -EINVAL;
}
static void it6616_mipitx_setup_dsi(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct bus_para *bus = &it6616->mipi.bus_para_config;
struct bus_config *cfg = &bus->cfg;
struct device *dev = &it6616->mipi_i2c->dev;
u8 mp_lane_num = cfg->lane - 1;
u8 p2m_time_mul = 0x03;
u8 p2m_time_div = 0x02;
u32 mp_hs_pretime = 0x4a;
u32 mp_hs_endtime = 0x09;
u8 mp_vid_type = cfg->type;
u32 mclk_ps = it6616->tx_mclk_ps, tx_mclk_mhz = it6616->tx_mclk / 1000;
u32 mipi_tx_calc_hs_end_time = (6 * mclk_ps - 20 * 1000) / mclk_ps;
u8 reg23;
reg23 = cfg->reg23_p2m;
p2m_time_mul = reg23 & 0x0F;
p2m_time_div = (reg23 & 0xF0) >> 4;
it6616_mipi_tx_set_bits(mipi, 0x28, 0x20, bus->tx_sel_line_start << 5);
if (!it6616->mipi_tx_enable_manual_adjusted_d_phy) {
if (mp_lane_num == 3) {
mp_hs_pretime = (((145 + ((4 + bus->lpx_num) * 20)) * 1000 -
((3 * mclk_ps) >> 1)) / mclk_ps);
mp_hs_endtime = mipi_tx_calc_hs_end_time + 9;
} else if (mp_lane_num == 1) {
mp_hs_pretime = ((((145 + ((4 + bus->lpx_num) * 20)) * 1000 -
((3 * mclk_ps) >> 1)) / mclk_ps) >> 1);
mp_hs_endtime = (mipi_tx_calc_hs_end_time >> 1) + 9;
} else {
mp_hs_pretime = ((((145 + ((4 + bus->lpx_num) * 20)) * 1000 -
((3 * mclk_ps) >> 1)) / mclk_ps) >> 2);
mp_hs_endtime = (mipi_tx_calc_hs_end_time >> 2) + 9;
}
if (mipi_tx_calc_hs_end_time <= 0)
mp_hs_endtime = 3;
if (tx_mclk_mhz >= 300)
mp_hs_pretime += 20;
else if (tx_mclk_mhz >= 250)
mp_hs_pretime += 18;
else if (tx_mclk_mhz >= 200)
mp_hs_pretime += 15;
else if (tx_mclk_mhz >= 150)
mp_hs_pretime += 12;
else
mp_hs_pretime += 9;
} else {
mp_hs_pretime = MIPI_TX_HS_PREPARE_ZERO;
mp_hs_endtime = MIPI_TX_HS_TRAIL;
}
//dsi setting
it6616_mipi_tx_set_bits(mipi, 0x5e, 0x03, (bus->tx_vlpm_length >> 8) & 0x03);
it6616_mipi_tx_set_bits(mipi, 0x5d, 0xff, bus->tx_vlpm_length & 0xFF);
it6616_mipi_tx_set_bits(mipi, 0x5e, 0x0c, (bus->tx_hlpm_length & 0x300) >> 6);
it6616_mipi_tx_set_bits(mipi, 0x5f, 0xff, bus->tx_hlpm_length & 0xFF);
it6616_mipi_tx_set_bits(mipi, 0x5e, 0x10, bus->tx_enable_h_enter_lpm << 4);
it6616_mipi_tx_set_bits(mipi, 0x6a, 0xff, bus->p2m_delay.tx_dsi_vsync_delay);
it6616_mipi_tx_set_bits(mipi, 0x6c, 0xff, mp_hs_pretime);
it6616_mipi_tx_set_bits(mipi, 0x6d, 0xff, mp_hs_endtime);
it6616_mipi_tx_set_bits(mipi, 0x5c, 0x03, (MIPI_TX_ENABLE_DSI_EOTP_PACKET << 1) |
MIPI_TX_ENABLE_DSI_SYNC_EVENT);
it6616_mipi_tx_set_bits(mipi, 0x5c, 0xf0, ((mp_vid_type & 0x30) << 2) |
((mp_vid_type & 0x3) << 4));
it6616_mipi_tx_set_bits(mipi, 0x60, 0x0f, p2m_time_mul);
it6616_mipi_tx_set_bits(mipi, 0x61, 0x03, p2m_time_div);
msleep(100);
dev_info(dev,
"hs_prepare_zero num: 0x%02x, hs_trail num: 0x%02x, dsi_vsync_delay: 0x%02x, mipi DSI TX setting done !!!",
mp_hs_pretime, mp_hs_endtime, bus->p2m_delay.tx_dsi_vsync_delay);
}
static void it6616_mipitx_setup_csi(struct it6616 *it6616)//set_mptx
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct regmap *mipi = it6616->mipi_regmap;
struct bus_para *bus = &it6616->mipi.bus_para_config;
struct bus_config *cfg = &bus->cfg;
struct device *dev = &it6616->mipi_i2c->dev;
u32 mp_hs_pretime = 0x4a;// int MPHSPreTime = 0x4a;//ori:11
u32 mp_hs_endtime = 0x09;// int MPHSEndTime = 0x09;//ori:06
u8 mp_vid_type = cfg->type;
u32 mclk_ps = it6616->tx_mclk_ps, tx_mclk_mhz = it6616->tx_mclk / 1000;
u32 mipi_tx_calc_hs_end_time = (6 * mclk_ps - 20 * 1000) / mclk_ps;
u8 reg23, interlace, en_fs_fr_num = false;
reg23 = cfg->reg23_p2m;
interlace = (it6616_hdmi_read(hdmi, 0x98) & 0x02) >> 1;
if (interlace)
en_fs_fr_num = true;
if (!it6616->mipi_tx_enable_manual_adjusted_d_phy) {
mp_hs_pretime = (((145 + ((4 + bus->lpx_num) * 20)) * 1000 -
((3 * mclk_ps) >> 1)) / mclk_ps);
mp_hs_endtime = mipi_tx_calc_hs_end_time + 9;
if (mipi_tx_calc_hs_end_time <= 0)
mp_hs_endtime = 3;
if (tx_mclk_mhz >= 300)
mp_hs_pretime += 20;
else if (tx_mclk_mhz >= 250)
mp_hs_pretime += 18;
else if (tx_mclk_mhz >= 200)
mp_hs_pretime += 15;
else if (tx_mclk_mhz >= 150)
mp_hs_pretime += 12;
else
mp_hs_pretime += 9;
} else {
mp_hs_pretime = MIPI_TX_HS_PREPARE_ZERO;
mp_hs_endtime = MIPI_TX_HS_TRAIL;
}
it6616_mipi_tx_write(mipi, 0x1F, mp_hs_endtime);
it6616_mipi_tx_write(mipi, 0x22, mp_hs_pretime);
it6616_mipi_tx_write(mipi, 0x24, 0x20);
it6616_mipi_tx_write(mipi, 0x25, bus->p2m_delay.tx_csi_p2m_delay);
it6616_mipi_tx_set_bits(mipi, 0x26, 0x20, (en_fs_fr_num << 5));
it6616_mipi_tx_write(mipi, 0x27, 0x02);
it6616_mipi_tx_write(mipi, 0x20, mp_vid_type);
it6616_mipi_tx_write(mipi, 0x23, reg23);
msleep(100);
dev_info(dev,
"hs_prepare_zero num: 0x%02x, hs_trail num: 0x%02x, tx_csi_p2m_delay: 0x%02x, mipi CSI TX setting done !!!",
mp_hs_pretime, mp_hs_endtime, bus->p2m_delay.tx_csi_p2m_delay);
}
static u8 it6616_mipi_tx_find_color_space_name_index(struct it6616 *it6616)
{
u8 i, csi_dsi_index = (it6616->mipi.bus_type == MIPI_CSI) ? 0 : 1;
for (i = 0; i < ARRAY_SIZE(mipi_color_space[0]); i++) {
if (it6616->mipi.data_type == mipi_color_space[csi_dsi_index][i])
return i;
}
return 0xFF;
}
static void it6616_mipitx_output_disable(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
it6616_mipi_tx_write(mipi, 0x05, 0x36);
}
static void it6616_mipi_tx_output_enable(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
/* release reset */
it6616_mipi_tx_write(mipi, 0x05, 0x00);
}
static void it6616_mipi_tx_non_continuous_clock_setup(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
/* enable non continuous clock */
it6616_mipi_tx_set_bits(mipi, 0x44, 0x01, 0x00);
dev_info(dev, "set mipi tx non continuous clock");
}
static void it6616_mipitx_output_setup(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct bus_para *bus = &it6616->mipi.bus_para_config;
struct bus_config *cfg = &bus->cfg;
struct device *dev = &it6616->mipi_i2c->dev;
u8 color_space_name_index = it6616_mipi_tx_find_color_space_name_index(it6616);
u8 bus_type_index = ((it6616->mipi.bus_type == MIPI_CSI) ? 0 : 1);
u8 regb0, mplldiv, mprediv;
u32 mclk_MHz;
u32 pclk = it6616->vinfo.pclk / 1000;
if (it6616->mipi_tx_enable_auto_adjust_lane_count)
it6616->mipi.lane_cnt = it6616->csi_lanes_in_use;
adjust_lane_count:
dev_info(dev, "%s", bus_type_index ? "MIPI_DSI" : "MIPI_CSI");
dev_info(dev, "color space: %s", (color_space_name_index != 0xFF) ?
mipi_color_space_name[bus_type_index][color_space_name_index] : "not find match");
dev_info(dev, "lan_num: %d, swap_pn: %d", it6616->mipi.lane_cnt, bus->swap_pn);
dev_info(dev, "swap_lan: %d, pclk_inv: %d", bus->swap_lan, bus->pclk_inv);
dev_info(dev, "mclk_inv: %d, lpx_num: %d", bus->mclk_inv, bus->lpx_num);
it6616_mipitx_get_bus_config(it6616);
if (pclk > 200)
regb0 = cfg->regb0_div[0];
else if (pclk > 100)
regb0 = cfg->regb0_div[1];
else
regb0 = cfg->regb0_div[2];
mprediv = regb0 >> 5;
mplldiv = regb0 & 0x1F;
dev_dbg(dev, "prediv: 0x%02x, plldiv: 0x%02x", mprediv, mplldiv);
mclk_MHz = ((pclk) * (mplldiv + 1)) >> 1;
mclk_MHz = mclk_MHz / (mprediv + 1);
it6616->tx_mclk = mclk_MHz * 1000;
it6616->tx_mclk_ps = (2000 * (mprediv + 1) * 1000) / ((pclk) * (mplldiv + 1));
dev_info(dev,
"mclk_ns: %d.%d ns, mclk: %d MHz, pclk: %d MHz",
it6616->tx_mclk_ps / 1000, it6616->tx_mclk_ps % 1000,
it6616->tx_mclk / 1000, pclk);
if (it6616->mipi_tx_enable_auto_adjust_lane_count) {
if (mclk_MHz < MIPI_TX_LANE_ADJUST_THRESHOLD) {
it6616->mipi.lane_cnt = (it6616->mipi.lane_cnt == 4) ? 2 : 1;
dev_info(dev, "mclk < %d MHz, adjust to lan_num: %d",
MIPI_TX_LANE_ADJUST_THRESHOLD, it6616->mipi.lane_cnt);
goto adjust_lane_count;
}
}
if (it6616->tx_mclk > 310000)
bus->mclk_inv = 0;
it6616_mipi_tx_set_bits(mipi, 0x28, 0x0c, (bus->swap_pn << 3) | (bus->swap_lan << 2));
it6616_mipi_tx_set_bits(mipi, 0x10, BIT(2), bus->pclk_inv << 2);
switch (it6616_mipi_tx_read(mipi, 0x04)) {
case 0xC0:
it6616_mipi_tx_set_bits(mipi, 0x10, BIT(1), bus->mclk_inv << 1);
break;
default:
it6616_mipi_tx_set_bits(mipi, 0x11, BIT(3), bus->mclk_inv << 3);
}
it6616_mipi_tx_set_bits(mipi, 0x8c, 0x40, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x47, 0xf0, bus->mipi_tx_hs_prepare << 4);
it6616_mipi_tx_set_bits(mipi, 0x44, 0x04, bus->tx_enable_hs_pre_1T << 2);
it6616_mipi_tx_set_bits(mipi, 0x21, 0x30, (it6616->mipi.lane_cnt - 1) << 4);
dev_dbg(dev, "set hs_prepare num: 0x%02x, hs_lpx num: 0x%02x",
bus->mipi_tx_hs_prepare, bus->lpx_num);
if ((pclk < (10 * (mprediv + 1))) || (pclk > (100 * (mprediv + 1))))
dev_err(dev,
"MPTX PHY setting wrong, need to reset parameter for TXPHY!!!");
if (it6616->mipi.bus_type == MIPI_CSI) {
if (pclk >= (mclk_MHz * 2))
bus->p2m_delay.tx_csi_p2m_delay = 0x02;
else if (pclk >= mclk_MHz)
bus->p2m_delay.tx_csi_p2m_delay = 0x04;
else if (mclk_MHz >= (pclk * 2))
bus->p2m_delay.tx_csi_p2m_delay = 0x0a;
else if ((mclk_MHz * 2) >= (pclk * 3))
bus->p2m_delay.tx_csi_p2m_delay = 0x08;
else
bus->p2m_delay.tx_csi_p2m_delay = 0x04;
it6616_mipitx_setup_csi(it6616);
} else {
if (pclk >= (mclk_MHz * 2))
bus->p2m_delay.tx_dsi_vsync_delay = 0x02;
else if (pclk >= mclk_MHz)
bus->p2m_delay.tx_dsi_vsync_delay = 0x04;
else if (mclk_MHz >= (pclk * 2))
bus->p2m_delay.tx_dsi_vsync_delay = 0x0a;
else if ((mclk_MHz * 2) >= (pclk * 3))
bus->p2m_delay.tx_dsi_vsync_delay = 0x08;
else
bus->p2m_delay.tx_dsi_vsync_delay = 0x04;
it6616_mipitx_setup_dsi(it6616);
}
if (!it6616->mipi_tx_enable_continuous_clock)
it6616_mipi_tx_non_continuous_clock_setup(it6616);
/* setup mipi-tx-afe */
it6616_mipi_tx_write(mipi, 0xb0, regb0);
msleep(100);
}
static void it6616_enable_mipi(struct it6616 *it6616)
{
it6616_mipitx_output_setup(it6616);
it6616_mipi_tx_output_enable(it6616);
it6616->mipi_tx_enable_mipi_output = 1;
}
static void it6616_disable_mipi(struct it6616 *it6616)
{
it6616_mipitx_output_disable(it6616);
it6616->mipi_tx_enable_mipi_output = 0;
}
static void it6616_mipi_tx_get_support_format(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
u8 mipi_intput_color = it6616->mipi.data_type;
u8 color_space_name_index;
u8 bus_type_index = ((it6616->mipi.bus_type == MIPI_CSI) ? 0 : 1);
if (it6616->mipi.bus_type == MIPI_CSI) {
switch (mipi_intput_color) {
case CSI_RGB10b:
dev_dbg(dev, "csi not support CSI_RGB10b");
it6616->mipi.data_type = CSI_RGB888;
break;
case CSI_YCbCr42212b:
dev_dbg(dev, "csi not support CSI_YCbCr42212b");
it6616->mipi.data_type = CSI_YCbCr4228b;
break;
default:
return;
}
color_space_name_index = it6616_mipi_tx_find_color_space_name_index(it6616);
if (color_space_name_index != 0xFF)
dev_dbg(dev,
"will set %s",
mipi_color_space_name[bus_type_index][color_space_name_index]);
else
dev_err(dev, "error not find match color space");
} else {
if (it6616_mipi_tx_read(mipi, 0x04) == 0xC0) {
if ((mipi_intput_color == DSI_YCbCr_16b) ||
(mipi_intput_color == DSI_YCbCr_20b) ||
(mipi_intput_color == DSI_YCbCr_24b)) {
mipi_intput_color = it6616->mipi.data_type = DSI_RGB_24b;
dev_dbg(dev, "0xC0 MIPI DSI only support RGB, using: DSI_RGB_24b(%d)",
mipi_intput_color);
}
}
}
}
/*
* mipi rx need pn swap and let first bit data(after SOT) will be rising edge
* can use in it6616_mipitx_initial function before it6616_mipi_tx_write_lp_cmds
*/
static __maybe_unused void it6616_mipi_tx_rk_fix_first_bit_issue(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
it6616_mipi_tx_write(mipi, 0x05, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x28, 0x08, 0x08);
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x04);
it6616_mipi_tx_set_bits(mipi, 0x28, 0x08, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x70, 0x04, 0x00);
it6616_mipi_tx_write(mipi, 0x05, 0x36);
}
static void it6616_mipitx_initial(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
struct bus_para *bus = &it6616->mipi.bus_para_config;
it6616_mipi_tx_set_bits(mipi, 0x05, 0x09, 0x09);
it6616_mipi_tx_write(mipi, 0x05, 0x36);
it6616_mipi_tx_set_bits(mipi, 0x2A, 0x3c, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x3c, 0x20, 0x20);
it6616_mipi_tx_set_bits(mipi, 0x6b, 0x01, it6616->mipi.bus_type);
it6616_mipi_tx_set_bits(mipi, 0x10, 0x80, bus->tx_bypass << 7);
it6616_mipi_tx_set_bits(mipi, 0xc1, 0x03, 0x03);
it6616_mipi_tx_set_bits(mipi, 0xa8, 0x01, 0x00);
it6616_mipi_tx_set_bits(mipi, 0x45, 0x0f, bus->lpx_num);
if (it6616->mipi_tx_enable_initial_fire_lp_cmd) {
it6616_mipi_tx_write_lp_cmds(it6616, dcs_table, ARRAY_SIZE(dcs_table),
SET_DISPLAY_ON, 2, CALC_HEADER);
it6616_mipi_tx_write(mipi, 0x05, 0x36);
}
dev_dbg(dev, "mipi_initial chip:0x%02x", it6616_mipi_tx_read(mipi, 0x04));
}
static bool it6616_hdmi_is_5v_on(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
if (it6616_hdmi_read(hdmi, 0x13) & 0x01)
return true;
return false;
}
static bool it6616_hdmi_is_clock_stable(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
if (it6616_hdmi_read(hdmi, 0x13) & 0x10)
return true;
return false;
}
static __maybe_unused bool it6616_hdmi_is_symbol_locked(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
u8 reg14;
reg14 = it6616_hdmi_read(hdmi, 0x14);
if ((reg14 & 0x38) == 0x38)
return true;
return false;
}
static bool it6616_hdmi_is_scdt_on(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
if (it6616_hdmi_read(hdmi, 0x19) & BIT(7))
return true;
return false;
}
static u8 it6616_hdmi_get_output_color_space(struct it6616 *it6616)
{
u8 hdmi_output_color = 0;
u8 mipi_intput_color = it6616->mipi.data_type;
if (it6616->mipi.bus_type == MIPI_CSI) {
switch (mipi_intput_color) {
case CSI_RGB10b:
case CSI_RGB888:
case CSI_RGB666:
case CSI_RGB565:
case CSI_RGB555:
case CSI_RGB444:
hdmi_output_color = HDMI_COLORSPACE_RGB;
break;
case CSI_YCbCr4208b:
hdmi_output_color = HDMI_COLORSPACE_YUV420;
break;
case CSI_YCbCr4228b:
case CSI_YCbCr42210b:
case CSI_YCbCr42212b:
hdmi_output_color = HDMI_COLORSPACE_YUV422;
break;
}
} else {
switch (mipi_intput_color) {
case DSI_RGB_36b:
case DSI_RGB_30b:
case DSI_RGB_24b:
case DSI_RGB_18b_L:
case DSI_RGB_18b:
hdmi_output_color = HDMI_COLORSPACE_RGB;
break;
case DSI_YCbCr_16b:
case DSI_YCbCr_20b:
case DSI_YCbCr_24b:
hdmi_output_color = HDMI_COLORSPACE_YUV422;
break;
}
}
it6616->output_colorspace = hdmi_output_color;
return hdmi_output_color;
}
static void it6616_hdmi_edid_ram_get(struct it6616 *it6616, u8 *buf)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct regmap *edid = it6616->edid_regmap;
it6616_hdmi_write(hdmi, 0x4B, (I2C_ADR_EDID | 0x01));
it6616_hdmi_edid_read(edid, buf, 0, 256);
it6616_hdmi_write(hdmi, 0x4B, (I2C_ADR_EDID));
}
static void it6616_hdmi_edid_ram_update_chksum(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
u16 sum;
u8 offset;
int i;
// cal block 0 sum
sum = 0;
for (i = 0 ; i < 127 ; i++)
sum += it6616->edid_data[i];
sum = (0x100 - sum) & 0xFF;
it6616_hdmi_write(hdmi, 0xC9, sum);
// cal block 1 sum
sum = 0;
offset = it6616_hdmi_read(hdmi, 0xC6);
for (i = 128; i < 128 + 127; i++)
sum += it6616->edid_data[i];
sum -= it6616->edid_data[offset];
sum -= it6616->edid_data[offset + 1];
sum += it6616_hdmi_read(hdmi, 0xC7);
sum += it6616_hdmi_read(hdmi, 0xC8);
sum = (0x100 - sum) & 0xFF;
it6616_hdmi_write(hdmi, 0xCA, sum);
}
static void it6616_hdmi_edid_ram_init(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct regmap *edid = it6616->edid_regmap;
unsigned int phy_addr_off;
u16 addr;
// write data to EDID RAM
it6616_hdmi_write(hdmi, 0x4B, (I2C_ADR_EDID | 0x01));
it6616_hdmi_edid_write(edid, it6616->edid_data, 0, it6616->edid_len);
it6616_hdmi_write(hdmi, 0x4B, (I2C_ADR_EDID));
// update physical address for VSDB
addr = cec_get_edid_phys_addr(it6616->edid_data, it6616->edid_len, &phy_addr_off);
if (addr != CEC_PHYS_ADDR_INVALID) {
it6616_hdmi_write(hdmi, 0xC6, (u8)phy_addr_off); // VSDB start address
it6616_hdmi_write(hdmi, 0xC7, (addr >> 8) & 0xFF); // addr AB
it6616_hdmi_write(hdmi, 0xC8, addr & 0xFF); // addr CD
}
// recalculate block0/block1 checksum
it6616_hdmi_edid_ram_update_chksum(it6616);
it6616_hdmi_set(hdmi, 0xC5, 0x10, 0x10);
msleep(20);
it6616_hdmi_set(hdmi, 0xC5, 0x10, 0x00);
}
static void it6616_hdmi_video_reset(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
it6616_hdmi_set(hdmi, 0x22, BIT(0), BIT(0));
msleep(20);
it6616_hdmi_set(hdmi, 0x22, BIT(0), 0x00);
it6616_hdmi_set(hdmi, 0x10, BIT(1), BIT(1)); // clear vidstable change INT
it6616_hdmi_set(hdmi, 0x12, BIT(7), BIT(7)); // clear vidstable change INT
}
static void it6616_hdmi_edid_ram_enable(struct it6616 *it6616, u8 enabled)
{
struct regmap *hdmi = it6616->hdmi_regmap;
if (enabled)
it6616_hdmi_set(hdmi, 0xC5, 0x3F, 0x02);
else
it6616_hdmi_set(hdmi, 0xC5, 0x3F, 0x13);
}
static void it6616_hdmi_rx_get_video_info(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u16 h_sync_pol, v_sync_pol, interlaced;
u16 h_total, h_active, h_front_porch, h_sync_w;
u16 v_total, v_active, v_front_porch, v_sync_w;
u32 frame_rate;
interlaced = (it6616_hdmi_read(hdmi, 0x98) & 0x02) >> 1;
h_total = ((it6616_hdmi_read(hdmi, 0x9C) & 0x3F) << 8) + it6616_hdmi_read(hdmi, 0x9B);
h_active = ((it6616_hdmi_read(hdmi, 0x9E) & 0x3F) << 8) + it6616_hdmi_read(hdmi, 0x9D);
h_front_porch = ((it6616_hdmi_read(hdmi, 0xA1) & 0xF0) << 4) + it6616_hdmi_read(hdmi, 0xA0);
h_sync_w = ((it6616_hdmi_read(hdmi, 0xA1) & 0x01) << 8) + it6616_hdmi_read(hdmi, 0x9F);
v_total = ((it6616_hdmi_read(hdmi, 0xA3) & 0x3F) << 8) + it6616_hdmi_read(hdmi, 0xA2);
v_active = ((it6616_hdmi_read(hdmi, 0xA5) & 0x3F) << 8) + it6616_hdmi_read(hdmi, 0xA4);
v_front_porch = ((it6616_hdmi_read(hdmi, 0xA8) & 0xF0) << 4) + it6616_hdmi_read(hdmi, 0xA7);
v_sync_w = ((it6616_hdmi_read(hdmi, 0xA8) & 0x01) << 8) + it6616_hdmi_read(hdmi, 0xA6);
h_sync_pol = (it6616_hdmi_read(hdmi, 0xAA) & BIT(5)) >> 5;
v_sync_pol = (it6616_hdmi_read(hdmi, 0xAA) & BIT(6)) >> 6;
it6616->vinfo.h_active = h_active;
it6616->vinfo.h_total = h_total;
it6616->vinfo.h_front_porch = h_front_porch;
it6616->vinfo.h_sync_w = h_sync_w;
it6616->vinfo.h_back_porch = (h_total - h_active - h_front_porch - h_sync_w);
it6616->vinfo.v_active = v_active;
it6616->vinfo.v_total = v_total;
it6616->vinfo.v_front_porch = v_front_porch;
it6616->vinfo.v_sync_w = v_sync_w;
it6616->vinfo.v_back_porch = v_total - v_active - v_front_porch - v_sync_w;
it6616->vinfo.interlaced = (interlaced) & 0x01;
it6616->vinfo.v_sync_pol = (v_sync_pol) & 0x01;
it6616->vinfo.h_sync_pol = (h_sync_pol) & 0x01;
frame_rate = (u32)(it6616->vinfo.pclk) * 1000;
frame_rate /= it6616->vinfo.h_total;
frame_rate /= it6616->vinfo.v_total;
it6616->vinfo.frame_rate = frame_rate;
if (it6616->avi_if.colorspace == HDMI_COLORSPACE_YUV420) {
dev_dbg(dev, "HActive = %d\n", it6616->vinfo.h_active*2);
dev_dbg(dev, "HTotal = %d\n", it6616->vinfo.h_total*2);
} else {
dev_dbg(dev, "HActive = %d\n", it6616->vinfo.h_active);
dev_dbg(dev, "HTotal = %d\n", it6616->vinfo.h_total);
}
dev_dbg(dev, "VActive = %d\n", it6616->vinfo.v_active);
dev_dbg(dev, "VTotal = %d\n", it6616->vinfo.v_total);
if (it6616->avi_if.colorspace == HDMI_COLORSPACE_YUV420) {
dev_dbg(dev, "HFrontPorch = %d\n", it6616->vinfo.h_front_porch*2);
dev_dbg(dev, "HSyncWidth = %d\n", it6616->vinfo.h_sync_w*2);
dev_dbg(dev, "HBackPorch = %d\n", it6616->vinfo.h_back_porch*2);
} else {
dev_dbg(dev, "HFrontPorch = %d\n", it6616->vinfo.h_front_porch);
dev_dbg(dev, "HSyncWidth = %d\n", it6616->vinfo.h_sync_w);
dev_dbg(dev, "HBackPorch = %d\n", it6616->vinfo.h_back_porch);
}
dev_dbg(dev, "VFrontPorch = %d\n", it6616->vinfo.v_front_porch);
dev_dbg(dev, "VSyncWidth = %d\n", it6616->vinfo.v_sync_w);
dev_dbg(dev, "VBackPorch = %d\n", it6616->vinfo.v_back_porch);
dev_dbg(dev, "FrameRate = %u\n", it6616->vinfo.frame_rate);
if (it6616->vinfo.interlaced)
dev_dbg(dev, "ScanMode = InterLaced\n");
else
dev_dbg(dev, "ScanMode = Progressive\n");
if (it6616->vinfo.v_sync_pol)
dev_dbg(dev, "VSyncPol = Positive\n");
else
dev_dbg(dev, "VSyncPol = Negative\n");
if (it6616->vinfo.h_sync_pol)
dev_dbg(dev, "HSyncPol = Positive\n");
else
dev_dbg(dev, "HSyncPol = Negative");
}
static void it6616_hdmi_hpd_output(struct it6616 *it6616, u8 hpd)
{
struct regmap *hdmi = it6616->hdmi_regmap;
it6616_hdmi_chgbank(hdmi, 3);
if (hpd)
it6616_hdmi_set(hdmi, 0xAB, 0xC0, 0xC0); // SET PORT0 HPD HIGH
else
it6616_hdmi_set(hdmi, 0xAB, 0xC0, 0x40); // SET PORT0 HPD LOW
it6616_hdmi_chgbank(hdmi, 0);
}
static void it6616_hdmi_hdcp_reset(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
it6616_hdmi_set(hdmi, 0x23, 0x02, 0x02);
it6616_hdmi_set(hdmi, 0x23, 0x02, 0x00);
}
static bool it6616_hdmi_get_hdcp_status(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
return it6616_hdmi_read(hdmi, 0xCF) & BIT(5);
}
static bool it6616_get_hdcp_status(struct it6616 *it6616)
{
bool hdcp_status;
hdcp_status = it6616_hdmi_get_hdcp_status(it6616);
return hdcp_status;
}
static enum av_mute_state it6616_hdmi_rx_get_av_mute_state(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
bool av_mute_state;
it6616_hdmi_chgbank(hdmi, 0);
av_mute_state = !!(it6616_hdmi_read(hdmi, 0xAA) & BIT(3));
return av_mute_state ? AV_MUTE_ON : AV_MUTE_OFF;
}
static void it6616_hdmi_rx_set_av_mute(struct it6616 *it6616, enum av_mute_state mute_state)
{
struct regmap *hdmi = it6616->hdmi_regmap;
it6616_hdmi_chgbank(hdmi, 0);
switch (mute_state) {
case AV_MUTE_OFF:
it6616_hdmi_set(hdmi, 0x4F, BIT(5), 0x00);
if (!it6616->mipi_tx_enable_mipi_output) {
it6616_hdmi_rx_get_video_info(it6616);
it6616_mipi_tx_get_support_format(it6616);
it6616_enable_mipi(it6616);
}
break;
case AV_MUTE_ON:
it6616_hdmi_set(hdmi, 0x4F, BIT(5), BIT(5));
it6616_disable_mipi(it6616);
break;
default:
break;
}
}
static void it6616_hdmi_update_rs(struct it6616 *it6616, u8 level)
{
struct regmap *hdmi = it6616->hdmi_regmap;
u8 rs_val = level;
it6616_hdmi_chgbank(hdmi, 3);
it6616_hdmi_set(hdmi, 0x26, 0x20, 0x00);
it6616_hdmi_write(hdmi, 0x27, rs_val);
it6616_hdmi_write(hdmi, 0x28, rs_val);
it6616_hdmi_write(hdmi, 0x29, rs_val);
it6616_hdmi_chgbank(hdmi, 0);
}
static void it6616_mipi_tx_calc_rclk(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
unsigned long sum = 0, ul100msCNT = 0;
u8 i, retry = 3;
for (i = 0; i < retry; i++) {
it6616_mipi_tx_set_bits(mipi, 0xE0, 0x80, 0x80); // Enable RCLK 100ms count
msleep(100);
it6616_mipi_tx_set_bits(mipi, 0xE0, 0x80, 0x00); // Disable RCLK 100ms count
ul100msCNT = it6616_mipi_tx_read(mipi, 0xE3);
ul100msCNT = ((ul100msCNT << 8) | (it6616_mipi_tx_read(mipi, 0xE2)));
ul100msCNT = ((ul100msCNT << 8) | (it6616_mipi_tx_read(mipi, 0xE1)));
sum += ul100msCNT;
}
sum /= retry;
it6616->tx_rclk = sum / TIMER_100MS;
dev_dbg(dev, "mipi rclk = %d.%d MHz", it6616->tx_rclk / 1000,
it6616->tx_rclk % 1000);
}
static void it6616_mipi_tx_calc_mclk(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
unsigned long sum = 0, ulCNT, tx_mclk;
u8 i, retry = 3;
for (i = 0; i < retry; i++) {
it6616_mipi_tx_set_bits(mipi, 0xE7, 0x80, 0x80);
msleep(20);
it6616_mipi_tx_set_bits(mipi, 0xE7, 0x80, 0x00);
ulCNT = it6616_mipi_tx_read(mipi, 0xE7) & 0x0F;
ulCNT = (it6616_mipi_tx_read(mipi, 0xE6) | (ulCNT << 8));
sum += ulCNT;
}
sum /= retry;
//MCLK = 13500*2048/sum;
//MCLK = 27000*2048/sum;
tx_mclk = it6616->tx_rclk * 2048 / sum;
dev_dbg(dev, "mipi mclk = %lu.%lu MHz", tx_mclk / 1000, tx_mclk % 1000);
}
static void it6616_mipi_tx_calc_pclk(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
unsigned long sum = 0, ulCNT;
u8 i, retry = 3;
for (i = 0; i < retry; i++) {
it6616_mipi_tx_set_bits(mipi, 0xE5, 0x80, 0x80);
msleep(20);
it6616_mipi_tx_set_bits(mipi, 0xE5, 0x80, 0x00);
ulCNT = it6616_mipi_tx_read(mipi, 0xE5) & 0x0F;
ulCNT = it6616_mipi_tx_read(mipi, 0xE4) + (ulCNT << 8);
sum += ulCNT;
}
sum /= retry;
//PCLK = 13500*2048/sum;
//PCLK = 27000*2048/sum;
it6616->tx_pclk = it6616->tx_rclk * 2048 / sum;
dev_dbg(dev, "mipi pclk = %u.%u MHz", it6616->tx_pclk / 1000,
it6616->tx_pclk % 1000);
}
static u32 it6616_hdmi_rx_calc_rclk(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u32 rddata, rclk, sum = 0;
int i, retry = 5;
int t1usint;
int t1usflt;
for (i = 0; i < retry; i++) {
it6616_hdmi_set(hdmi, 0x58, 0x80, 0x80);
msleep(100);
it6616_hdmi_set(hdmi, 0x58, 0x80, 0x00);
rddata = it6616_hdmi_read(hdmi, 0x59);
rddata += (it6616_hdmi_read(hdmi, 0x5A) << 8);
rddata += (it6616_hdmi_read(hdmi, 0x5B) << 16);
sum += rddata;
}
sum /= retry;
rclk = sum / TIMER_100MS;
dev_dbg(dev, "RCLK=%u KHz\n", rclk);
t1usint = rclk / 1000;
t1usflt = (rclk / 1000 - t1usint) * 256;
it6616_hdmi_set(hdmi, 0x1E, 0x3F, t1usint & 0x3F);
it6616_hdmi_write(hdmi, 0x1F, t1usflt);
it6616->rclk = rclk;
return rclk;
}
static u32 it6616_hdmi_rx_calc_pclk(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u32 retry = 5, rddata, i;
u32 pclk, sump = 0;
__recal:
for (i = 0; i < retry; i++) {
msleep(20);
it6616_hdmi_set(hdmi, 0x9A, BIT(7), 0x00);
rddata = ((u32)(it6616_hdmi_read(hdmi, 0x9A) & 0x03) << 8) +
it6616_hdmi_read(hdmi, 0x99);
it6616_hdmi_set(hdmi, 0x9A, BIT(7), BIT(7));
sump += rddata;
}
sump /= retry;
if (sump) {
pclk = it6616->rclk * 512 / sump; // 512=2*256 because of 1T 2 pixel
dev_dbg(dev, "PCLK = %u.%03u MHz", pclk / 1000, pclk % 1000);
it6616->vinfo.pclk = pclk;
} else {
dev_err(dev, "%s: sump == 0", __func__);
goto __recal;
}
return pclk;
}
static void it6616_hdmi_rx_calc_tmds_clk(struct it6616 *it6616, u8 count)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u32 sumt = 0;
u8 rddata = 0, i;
for (i = 0; i < count; i++) {
msleep(20);
rddata = it6616_hdmi_read(hdmi, 0x48) + 1;
sumt += rddata;
}
if (sumt) {
rddata = it6616_hdmi_read(hdmi, 0x43) & 0xE0;
if (rddata & BIT(7))
it6616->vinfo.TMDSCLK = (it6616->rclk * (u32)1024 * i) / sumt;
else if (rddata & BIT(6))
it6616->vinfo.TMDSCLK = (it6616->rclk * (u32)512 * i) / sumt;
else if (rddata & BIT(5))
it6616->vinfo.TMDSCLK = (it6616->rclk * (u32)256 * i) / sumt;
if (rddata == 0x00)
it6616->vinfo.TMDSCLK = (it6616->rclk * (u32)128 * i) / sumt;
dev_dbg(dev, "TMDSCLK = %u.%03uMHz\n",
it6616->vinfo.TMDSCLK / 1000, it6616->vinfo.TMDSCLK % 1000);
} else {
dev_err(dev, "%s - sumt==0\n", __func__);
}
}
static void it6616_hdmi_receive_avi_infoframe_log(struct it6616 *it6616, u8 *buffer, size_t length)
{
struct device *dev = &it6616->hdmi_i2c->dev;
u8 i;
dev_dbg(dev, "avi infoframe:");
for (i = 0; i < length; i++)
dev_err(dev, "0x%02x", buffer[i]);
}
static int it6616_hdmi_update_avi_infoframe(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct hdmi_avi_infoframe *frame = &it6616->avi_if;
u8 avi_packet[20] = { 0 };
avi_packet[0] = HDMI_INFOFRAME_TYPE_AVI;
it6616_hdmi_chgbank(hdmi, 2);
avi_packet[1] = it6616_hdmi_read(hdmi, REG_RX_AVI_HB1);// version
avi_packet[2] = it6616_hdmi_read(hdmi, REG_RX_AVI_HB2);// version
regmap_bulk_read(hdmi, REG_RX_AVI_DB0, &avi_packet[3], 16);
it6616_hdmi_chgbank(hdmi, 0);
it6616_hdmi_receive_avi_infoframe_log(it6616, avi_packet, ARRAY_SIZE(avi_packet));
return hdmi_infoframe_unpack((union hdmi_infoframe *)frame, avi_packet, sizeof(avi_packet));
}
static void it6616_hdmi_rx_setup_csc(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
enum hdmi_colorspace color_in;
enum hdmi_colorspace color_out;
enum csc_select csc_select;
enum csc_matrix_type csc_matrix_type;
u8 reg6b = 0;
u8 reg6e = ((HDMI_RX_AUTO_CSC_SELECT << 7) |
(HDMI_RX_QUANT_4LB << 6) |
(HDMI_RX_CRCB_LIMIT << 5) |
(HDMI_RX_COLOR_CLIP << 4) |
(HDMI_RX_ENABLE_DITHER_FCNT_FUNCTION << 2) |
(HDMI_RX_ENABLE_DITHER_FUNCTION << 1) |
HDMI_RX_ENABLE_COLOR_UP_DN_FILTER);
color_in = it6616->avi_if.colorspace;
color_out = it6616_hdmi_get_output_color_space(it6616);
if (color_in == HDMI_COLORSPACE_RGB && color_out != HDMI_COLORSPACE_RGB)
csc_select = CSC_RGB2YUV;
else if (color_in != HDMI_COLORSPACE_RGB && color_out == HDMI_COLORSPACE_RGB)
csc_select = CSC_YUV2RGB;
else
csc_select = CSC_BYPASS;
switch (csc_select) {
case CSC_RGB2YUV:
dev_info(dev, "csc rgb2yuv");
if (it6616->avi_if.colorimetry == HDMI_COLORIMETRY_ITU_709) {
if (it6616->avi_if.quantization_range == HDMI_QUANTIZATION_RANGE_LIMITED)
csc_matrix_type = CSCMtx_RGB2YUV_ITU709_16_235;
else
csc_matrix_type = CSCMtx_RGB2YUV_ITU709_00_255;
} else {/* HDMI_COLORIMETRY_ITU_601 */
if (it6616->avi_if.quantization_range == HDMI_QUANTIZATION_RANGE_LIMITED)
csc_matrix_type = CSCMtx_RGB2YUV_ITU601_16_235;
else
csc_matrix_type = CSCMtx_RGB2YUV_ITU601_00_255;
}
break;
case CSC_YUV2RGB:
dev_info(dev, "csc yuv2rgb");
if (it6616->avi_if.colorimetry == HDMI_COLORIMETRY_ITU_709)
// when 709 format always to RGB full range
csc_matrix_type = CSCMtx_YUV2RGB_ITU709_00_255;
else if (it6616->avi_if.colorimetry == HDMI_COLORIMETRY_EXTENDED &&
(it6616->avi_if.extended_colorimetry == 0x05 ||
it6616->avi_if.extended_colorimetry == 0x06))
// this Matrix is BT2020 YUV to BT2020 RGB, not normal limit/full range RGB
csc_matrix_type = CSCMtx_YUV2RGB_BT2020_00_255; // for BT.2020 CSC
else /* Colormetry_ITU601 */
csc_matrix_type = CSCMtx_YUV2RGB_ITU601_00_255;
break;
case CSC_BYPASS:
dev_info(dev, "csc byass");
break;
}
if (csc_select != CSC_BYPASS) {
it6616_hdmi_chgbank(hdmi, 1);
regmap_bulk_write(hdmi, 0x70, (u8 *)csc_matrix[csc_matrix_type],
sizeof(csc_matrix[0]));
it6616_hdmi_chgbank(hdmi, 0);
}
it6616_hdmi_set(hdmi, 0x6E, 0xF7, reg6e);
it6616_hdmi_set(hdmi, 0x6C, 0x03, csc_select);
switch (color_in) {
case HDMI_COLORSPACE_YUV422:
reg6b = 1 << 4;
break;
case HDMI_COLORSPACE_YUV444:
reg6b = 2 << 4;
break;
case HDMI_COLORSPACE_YUV420:
reg6b = 3 << 4;
break;
case HDMI_COLORSPACE_RGB:
reg6b = 0 << 4;
break;
default:
dev_err(dev, "## unknown input color space %x\n", color_in);
break;
}
switch (color_out) {
case HDMI_COLORSPACE_YUV422:
reg6b |= 1 << 2;
break;
case HDMI_COLORSPACE_YUV444:
reg6b |= 2 << 2;
break;
case HDMI_COLORSPACE_YUV420:
reg6b |= 3 << 2;
break;
case HDMI_COLORSPACE_RGB:
reg6b |= 0 << 2;
break;
default:
dev_err(dev, "## unknown output color space %x\n", color_out);
break;
}
if (it6616->mipi.bus_type == MIPI_CSI) {
switch (it6616->mipi.data_type) {
case CSI_RGB10b:
reg6b |= 1 << 0;
break;
}
} else {
switch (it6616->mipi.data_type) {
case DSI_RGB_36b:
reg6b |= 2 << 0;
break;
case DSI_RGB_30b:
reg6b |= 1 << 0;
break;
}
}
it6616_hdmi_set(hdmi, 0x6B, 0x3F, reg6b);
}
static void it6616_hdmi_rx_reset_audio_logic(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
u8 temp;
it6616_hdmi_set(hdmi, 0x22, BIT(1), BIT(1)); // audio reset
msleep(20);
it6616_hdmi_set(hdmi, 0x22, BIT(1), 0x00);
// RegFS_Set[5:0] : Software set sampling frequency R/W
temp = it6616_hdmi_read(hdmi, 0x8A);
it6616_hdmi_write(hdmi, 0x8A, temp);
it6616_hdmi_write(hdmi, 0x8A, temp);
it6616_hdmi_write(hdmi, 0x8A, temp);
it6616_hdmi_write(hdmi, 0x8A, temp);
}
static void it6616_hdmi_rx_audio_setup_i2s_justified(struct it6616 *it6616, u8 i2s_justified)
{
struct regmap *hdmi = it6616->hdmi_regmap;
i2s_justified = (i2s_justified == FROM_CONFIG) ?
it6616->audio_i2s_justified : i2s_justified;
it6616_hdmi_set(hdmi, 0x0F, 0x03, 0x00);
it6616_hdmi_set(hdmi, 0x82, 0x03, i2s_justified);
}
static void it6616_hdmi_tx_audio_setup(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u32 sum = 0, cts_128;
// RegForce_CTSMode : need to set to 1 for get the cts in the PKT,
// 0 repersent nothing (HW using)
// so set to 1 to get cts in the REG2C1/2C2/2C0
it6616_hdmi_set(hdmi, 0x86, BIT(0), BIT(0));
it6616_hdmi_rx_audio_setup_i2s_justified(it6616, FROM_CONFIG);
it6616_hdmi_chgbank(hdmi, 2);
it6616->ainfo.n = ((u32)it6616_hdmi_read(hdmi, 0xBE) << 12) +
((u32)it6616_hdmi_read(hdmi, 0xBF) << 4) +
((u32)it6616_hdmi_read(hdmi, 0xC0) & 0x0F);
it6616->ainfo.cts = it6616_hdmi_read(hdmi, 0xC0) >> 4;
it6616->ainfo.cts |= ((u32)it6616_hdmi_read(hdmi, 0xC1)) << 12;
it6616->ainfo.cts |= ((u32)it6616_hdmi_read(hdmi, 0xC2)) << 4;
it6616_hdmi_chgbank(hdmi, 0);
if (it6616->ainfo.cts == 0) {
dev_info(dev, "WARNING:cts = %u", it6616->ainfo.cts);
return;
}
// in the hdmi2.0 page 84, need bit 24, 25, 26, 27, 30, 31
// Audio_CH_Status : Audio Channel status decoder value[31:24]
// and bit[24:27] = Audio Sampling Rate
it6616->ainfo.channel_status = ((it6616_hdmi_read(hdmi, 0xB5) & 0xC0) >> 2) +
(it6616_hdmi_read(hdmi, 0xB5) & 0x0F);
cts_128 = 128 * it6616->ainfo.cts;
sum = it6616->ainfo.n * it6616->vinfo.TMDSCLK;
it6616->ainfo.sample_freq = sum / cts_128;
dev_info(dev, "n = %u cts = %u\n", it6616->ainfo.n, it6616->ainfo.cts);
dev_info(dev, "tmds clock = %d kHz\n", it6616->vinfo.TMDSCLK);
dev_info(dev, "Audio_CH_Status[24:27 - 30:31][bit0~bit5] = 0x%02x\n",
it6616->ainfo.channel_status);
dev_info(dev, "sw clac sampling frequency = %d.%d kHz\n",
it6616->ainfo.sample_freq, (sum % cts_128) * 100 / cts_128);
if (it6616->ainfo.sample_freq > 25 && it6616->ainfo.sample_freq <= 38)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_32K;
else if (it6616->ainfo.sample_freq > 38 && it6616->ainfo.sample_freq <= 45)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_44P1K;
else if (it6616->ainfo.sample_freq > 45 && it6616->ainfo.sample_freq <= 58)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_48K;
else if (it6616->ainfo.sample_freq > 58 && it6616->ainfo.sample_freq <= 78)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_64K;
else if (it6616->ainfo.sample_freq > 78 && it6616->ainfo.sample_freq <= 91)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_88P2K;
else if (it6616->ainfo.sample_freq > 91 && it6616->ainfo.sample_freq <= 106)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_96K;
else if (it6616->ainfo.sample_freq > 106 && it6616->ainfo.sample_freq <= 166)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_128K;
else if (it6616->ainfo.sample_freq > 166 && it6616->ainfo.sample_freq <= 182)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_176P4K;
else if (it6616->ainfo.sample_freq > 182 && it6616->ainfo.sample_freq <= 202)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_192K;
else if (it6616->ainfo.sample_freq > 224 && it6616->ainfo.sample_freq <= 320)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_256K;
else if (it6616->ainfo.sample_freq > 320 && it6616->ainfo.sample_freq <= 448)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_384K;
else if (it6616->ainfo.sample_freq > 448 && it6616->ainfo.sample_freq <= 638)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_512K;
else if (it6616->ainfo.sample_freq > 638 && it6616->ainfo.sample_freq <= 894)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_768K;
else if (it6616->ainfo.sample_freq > 894 && it6616->ainfo.sample_freq <= 1324)
it6616->ainfo.force_sample_freq = AUDIO_SAMPLING_1024K;
dev_info(dev, "Sampling_Frequency value 0x%02x", it6616->ainfo.force_sample_freq);
if (it6616->ainfo.channel_status == it6616->ainfo.force_sample_freq) {
dev_dbg(dev, "channel_status == force_sample_freq\n");
if (it6616_hdmi_read(hdmi, 0x81) & BIT(6)) {
// RegForce_FS : 0: Disable Force Audio FS mode
it6616_hdmi_set(hdmi, 0x81, BIT(6), 0x00);
it6616_hdmi_rx_reset_audio_logic(it6616);
}
it6616->audio_sampling_freq_error_count = 0;
return;
}
it6616->audio_sampling_freq_error_count++;
dev_dbg(dev, "it6616->audio_sampling_freq_error_count=%d\n",
(int) it6616->audio_sampling_freq_error_count);
/* exceed max error count , enable Force Sampling Mode */
if (it6616->audio_sampling_freq_error_count > MAX_AUDIO_SAMPLING_FREQ_ERROR_COUNT) {
it6616_hdmi_set(hdmi, 0x81, BIT(6), BIT(6)); // RegForce_FS : Force Audio FS mode
// RegFS_Set[5:0] : Software set sampling frequency
it6616_hdmi_set(hdmi, 0x8A, 0x3F, it6616->ainfo.force_sample_freq);
#if defined(Enable_Audio_Compatibility) && (Enable_Audio_Compatibility == 1)
if (it6616->ainfo.sample_freq <= 182) {
it6616_hdmi_set(hdmi, 0x89, 0x0C, 0x04);
it6616_hdmi_set(hdmi, 0x86, 0x0C, 0x0C);
} else {
it6616_hdmi_set(hdmi, 0x89, 0x0C, 0x0C);
it6616_hdmi_set(hdmi, 0x86, 0x0C, 0x04);
}
#endif
it6616->audio_sampling_freq_error_count = 0;
it6616_hdmi_rx_reset_audio_logic(it6616);
}
}
static void it6616_hdmi_tx_audio_output_enable(struct it6616 *it6616, u8 output_interface)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
it6616_hdmi_chgbank(hdmi, 1);
switch (output_interface) {
case AUDIO_OFF:
dev_info(dev, "audio off");
it6616_hdmi_write(hdmi, 0xC7, 0x7F); // SPDIF/I2S tri-state on
break;
case AUDIO_I2S:
case AUDIO_SPDIF:
dev_info(dev, "enable audio output");
it6616_hdmi_write(hdmi, 0xC7, 0x00); // SPDIF/I2S tri-state off
break;
}
it6616_hdmi_chgbank(hdmi, 0);
}
static void it6616_hdmi_audio_mute_clear(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
it6616_hdmi_set(hdmi, 0x8C, BIT(4), BIT(4)); // set RegHWMuteClr
it6616_hdmi_set(hdmi, 0x8C, BIT(4), 0x00); // clear RegHWMuteClr for clear H/W Mute
}
static void it6616_hdmi_rx_audio_process(struct it6616 *it6616)
{
it6616_hdmi_tx_audio_output_enable(it6616, AUDIO_OFF);
it6616_hdmi_rx_reset_audio_logic(it6616);
it6616_hdmi_tx_audio_setup(it6616);
it6616_hdmi_audio_mute_clear(it6616);
it6616_hdmi_tx_audio_output_enable(it6616, it6616->audio_interface);
}
static void it6616_hdmi_initial(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
it6616_hdmi_chgbank(hdmi, 0);
it6616_hdim_write_table(hdmi, it6616_hdmi_init_table);
it6616_hdmi_update_rs(it6616, DEFAULT_RS_LEVEL);
it6616_hdmi_set(hdmi, 0x67, BIT(7), it6616->hdmi_rx_disable_pixel_repeat << 7);
it6616_hdmi_set(hdmi, 0x69, BIT(6) | BIT(5),
it6616->hdmi_rx_video_stable_condition << 5);
dev_dbg(dev,
"set hdmi rx video stable condition, reg0x69[6:5], 0x%02x",
it6616_hdmi_read(hdmi, 0x69));
}
static void it6616_hdmi_irq_color_depth(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u8 input_color_depth;
input_color_depth = (it6616_hdmi_read(hdmi, 0x98) >> 4) & 0x0F;
dev_dbg(dev, "input color depth = %d bits\n", input_color_depth * 6);
}
static void it6616_hdmi_irq_new_avi_infoframe(struct it6616 *it6616)
{
struct hdmi_avi_infoframe *avi_new;
struct hdmi_avi_infoframe *avi_prev;
if (it6616_hdmi_update_avi_infoframe(it6616) == 0) {
avi_new = &it6616->avi_if;
avi_prev = &it6616->avi_if_prev;
hdmi_infoframe_log(KERN_INFO, &it6616->hdmi_i2c->dev,
(union hdmi_infoframe *)avi_new);
if (avi_prev->video_code != avi_new->video_code)
avi_prev->video_code = avi_new->video_code;
if (avi_prev->colorspace != avi_new->colorspace)
avi_prev->colorspace = avi_new->colorspace;
}
}
static void it6616_hdmi_hpd_trun_on(struct it6616 *it6616)
{
it6616_hdmi_edid_ram_enable(it6616, 1);
it6616_hdmi_video_reset(it6616);
it6616_hdmi_rx_reset_audio_logic(it6616);
it6616_hdmi_hpd_output(it6616, true);
}
static void it6616_hdmi_hpd_trun_off(struct it6616 *it6616)
{
it6616_hdmi_hpd_output(it6616, false);
it6616_hdmi_edid_ram_enable(it6616, 0);
}
static void it6616_mipitx_irq(struct it6616 *it6616)
{
struct regmap *mipi = it6616->mipi_regmap;
struct device *dev = &it6616->mipi_i2c->dev;
u8 reg09h, reg0ah, reg0bh;
reg09h = it6616_mipi_tx_read(mipi, 0x09);
reg0ah = it6616_mipi_tx_read(mipi, 0x0A);
reg0bh = it6616_mipi_tx_read(mipi, 0x0B);
it6616_mipi_tx_write(mipi, 0x0A, reg0ah);
it6616_mipi_tx_write(mipi, 0x0B, reg0bh);
if (reg0bh & 0x10) {
it6616->mipi_tx_video_stable = it6616_mipi_tx_get_video_stable(it6616);
dev_info(dev, "mipi tx Video Stable Change ...");
dev_info(dev, "mipi tx reg09 = 0x%02x, video %sstable",
reg09h, it6616->mipi_tx_video_stable ? "" : "un");
if (it6616->mipi_tx_video_stable) {
it6616_mipi_tx_calc_rclk(it6616);
it6616_mipi_tx_calc_mclk(it6616);
it6616_mipi_tx_calc_pclk(it6616);
}
}
if (reg0ah & 0x70) {
if (reg0ah & 0x20)
dev_err(dev, "Mipi Byte mismatch Err!!!\n");
if (reg0ah & 0x40)
dev_err(dev, "mipi P2M FIFO Err!!!\n");
}
}
static void it6616_hdmi_irq(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u8 reg05h, reg06h, Reg08h, Reg09h;
u8 Reg10h, Reg11h, Reg12h;
u8 Reg13h, Reg14h, Reg15h;
u8 Reg1Ah, Reg1Bh;
reg05h = it6616_hdmi_read(hdmi, 0x05);
it6616_hdmi_write(hdmi, 0x05, reg05h);
reg06h = it6616_hdmi_read(hdmi, 0x06);
it6616_hdmi_write(hdmi, 0x06, reg06h);
Reg08h = it6616_hdmi_read(hdmi, 0x08);
it6616_hdmi_write(hdmi, 0x08, Reg08h);
Reg09h = it6616_hdmi_read(hdmi, 0x09);
it6616_hdmi_write(hdmi, 0x09, Reg09h);
Reg10h = it6616_hdmi_read(hdmi, 0x10);
it6616_hdmi_write(hdmi, 0x10, Reg10h);
Reg11h = it6616_hdmi_read(hdmi, 0x11);
it6616_hdmi_write(hdmi, 0x11, Reg11h);
Reg12h = it6616_hdmi_read(hdmi, 0x12);
it6616_hdmi_write(hdmi, 0x12, Reg12h & 0x7F);
Reg13h = it6616_hdmi_read(hdmi, 0x13);
Reg14h = it6616_hdmi_read(hdmi, 0x14);
Reg15h = it6616_hdmi_read(hdmi, 0x15);
if (reg05h != 0x00) {
if (reg05h & 0x10)
dev_info(dev, "# hdmi mode chg #\n");
if (reg05h & 0x20) {
dev_err(dev, "# ECC Error #\n");
it6616_hdmi_hdcp_reset(it6616);
}
if (reg05h & 0x40)
dev_err(dev, "# Deskew Error #\n");
if (reg05h & 0x80)
dev_err(dev, "# H2VSkew Fail #\n");
if (reg05h & 0x04) {
dev_info(dev, "# Input Clock Change Detect #\n");
if (it6616_hdmi_is_clock_stable(it6616))
dev_info(dev, "# Clock Stable #\n");
else
dev_err(dev, "# Clock NOT Stable #\n");
}
if (reg05h & 0x02)
dev_info(dev, "# Rx CKOn Detect #\n");
if (reg05h & 0x01) {
dev_info(dev, "# 5V state change INT #\n");
it6616_hdmi_hdcp_reset(it6616);
if (it6616_hdmi_is_5v_on(it6616))
it6616_hdmi_hpd_trun_on(it6616);
else
it6616_hdmi_hpd_trun_off(it6616);
}
}
if (reg06h != 0x00) {
if (reg06h & 0x80)
dev_err(dev, "# FSM Error #\n");
if (reg06h & 0x40)
dev_err(dev, "# CH2 Symbol lock Rst #\n");
if (reg06h & 0x20)
dev_err(dev, "# CH1 Symbol lock Rst #\n");
if (reg06h & 0x10)
dev_err(dev, "# CH0 Symbol lock Rst #\n");
if (reg06h & 0x08)
dev_err(dev, "# CH2 CDR FIFO Aut0-Rst #\n");
if (reg06h & 0x04)
dev_err(dev, "# CH1 CDR FIFO Aut0-Rst #\n");
if (reg06h & 0x02)
dev_err(dev, "# CH0 CDR FIFO Aut0-Rst #\n");
if (reg06h & 0x01)
dev_info(dev, "# Symbol Lock State Change # ");
}
if (Reg09h != 0x00) {
if (Reg09h & 0x01)
dev_info(dev, "# HDCP Authentication Start #");
if (Reg09h & 0x02) {
dev_info(dev, "# HDCP Authentication Done #");
it6616->hdmi_rx_hdcp_state = true;
}
if (Reg09h & 0x04) {
it6616->hdmi_rx_hdcp_state = it6616_get_hdcp_status(it6616);
dev_info(dev, "HDCP Encryption change interrupt!");
dev_info(dev, "HDCP Encryption %s!",
it6616->hdmi_rx_hdcp_state ? "ON" : "OFF");
}
if (Reg09h & 0x08) {
dev_info(dev, "# HDCP Off #");
it6616->hdmi_rx_hdcp_state = false;
}
}
if (Reg12h != 0x00) {
if (Reg12h & BIT(7)) {
Reg1Ah = it6616_hdmi_read(hdmi, 0x1A);
Reg1Bh = it6616_hdmi_read(hdmi, 0x1B) & 0x07;
dev_info(dev, "# Video Parameters Change #\n");
dev_info(dev, "# VidParaChange_Sts=Reg1Bh=0x%02X Reg1Ah=0x%02X\n",
(int) Reg1Bh, (int) Reg1Ah);
it6616_hdmi_rx_calc_tmds_clk(it6616, 5);
it6616_hdmi_rx_calc_pclk(it6616);
it6616_hdmi_rx_get_video_info(it6616);
// only parameter change need to clear INT here ,
//or register 1A/1B can't be read after clear.
it6616_hdmi_write(hdmi, 0x12, 0x80);
}
if (Reg12h & BIT(6))
dev_info(dev, "# 3D audio Valie Change #\n");
if (Reg12h & BIT(5))
dev_info(dev, "# DRM pkt Change #\n");
if (Reg12h & 0x10)
dev_info(dev, "# New Audio PKT Received #\n");
if (Reg12h & 0x08)
dev_info(dev, "# New ACP PKT Received #\n");
if (Reg12h & 0x04)
dev_info(dev, "# New SPD PKT Received #\n");
if (Reg12h & 0x02)
dev_info(dev, "# New MPEG InfoFrame Received #\n");
if (Reg12h & 0x01) {
dev_info(dev, "# New AVI InfoFrame Received #\n");
it6616_hdmi_irq_new_avi_infoframe(it6616);
it6616_hdmi_rx_setup_csc(it6616);
}
}
if (Reg10h != 0x00) {
if (Reg10h & 0x80) {
dev_err(dev, "# Audio FIFO Error #");
it6616_hdmi_rx_audio_process(it6616);
}
if (Reg10h & 0x40)
dev_info(dev, "# Audio Auto Mute #");
// todo: how about on/off flag at the same time ?
if ((Reg10h & 0x20)) {
dev_info(dev, "# PKT Left Mute #");
it6616_hdmi_rx_set_av_mute(it6616, AV_MUTE_OFF);
}
if ((Reg10h & 0x10)) {
dev_info(dev, "# Set Mute PKT Received #");
it6616_hdmi_rx_set_av_mute(it6616, AV_MUTE_ON);
}
if (Reg10h & 0x08)
dev_info(dev, "# Timer Counter Interrupt #");
if (Reg10h & 0x04)
dev_info(dev, "# Video Mode Changed #");
if (Reg10h & 0x02) {
it6616->hdmi_rx_video_stable = it6616_hdmi_is_scdt_on(it6616);
dev_info(dev, "SCDT %s", it6616->hdmi_rx_video_stable ? "ON" : "OFF");
if (it6616->hdmi_rx_video_stable) {
it6616_hdmi_rx_calc_tmds_clk(it6616, 5);
it6616_hdmi_rx_calc_pclk(it6616);
it6616_hdmi_rx_get_video_info(it6616);
it6616_hdmi_rx_audio_process(it6616);
msleep(400);
it6616_mipi_tx_get_support_format(it6616);
it6616_enable_mipi(it6616);
} else {
it6616_disable_mipi(it6616);
}
}
if (Reg10h & 0x01)
dev_info(dev, "# Video Abnormal Interrupt #\n");
}
if (Reg11h != 0x00) {
if (Reg11h & BIT(5))
dev_info(dev, "# No Audio InfoFrame Received #\n");
if (Reg11h & BIT(4))
dev_info(dev, "# No AVI InfoFrame Received #\n");
if (Reg11h & BIT(3)) {
dev_info(dev, "# CD Detect #\n");
it6616_hdmi_irq_color_depth(it6616);
}
if (Reg11h & BIT(1))
it6616_hdmi_write(hdmi, 0x11, BIT(1));
if (Reg11h & BIT(0))
it6616_hdmi_write(hdmi, 0x11, BIT(0));
}
if (Reg13h != 0x00) {
if (Reg13h & BIT(0))
dev_dbg(dev, "# Port 0 power 5V detect #\n");
if (Reg13h & BIT(1))
dev_dbg(dev, "# Port 0 HDMI mode #\n");
else
dev_dbg(dev, "# Port 0 DVI mode #\n");
}
if (Reg14h != 0x00) {
if (Reg14h & BIT(0))
dev_dbg(dev, "# Port 0 IPLL clock is higher than 100MHz #\n");
}
if (Reg15h != 0x00) {
if (Reg15h & BIT(6))
dev_dbg(dev, "# Port 0 EDID Idle #\n");
else
dev_dbg(dev, "# Port 0 EDID active #\n");
}
}
static int it6616_get_chip_id(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
struct device *dev = &it6616->hdmi_i2c->dev;
u8 chip_id[4] = {0x54, 0x49, 0x16, 0x66};
int i, ret;
for (i = 0; i < sizeof(chip_id); i++) {
ret = it6616_hdmi_read(hdmi, i);
if (ret != chip_id[i]) {
dev_err(dev, "not 6616 reg[0x%02x]=0x%02x", i, ret);
return -ENODEV;
}
}
return 0;
}
static void it6616_poll_threaded_handler(struct it6616 *it6616)
{
struct regmap *hdmi = it6616->hdmi_regmap;
enum av_mute_state mute_state_config = !!(it6616_hdmi_read(hdmi, 0x4F) & BIT(5));
enum av_mute_state current_mute_state;
current_mute_state = it6616_hdmi_rx_get_av_mute_state(it6616);
if (mute_state_config != current_mute_state)
it6616_hdmi_rx_set_av_mute(it6616, current_mute_state);
}
static irqreturn_t it6616_intp_threaded_handler(int unused, void *data)
{
struct it6616 *it6616 = (struct it6616 *)data;
mutex_lock(&it6616->confctl_mutex);
it6616_hdmi_irq(it6616);
it6616_mipitx_irq(it6616);
mutex_unlock(&it6616->confctl_mutex);
return IRQ_HANDLED;
}
static int it6616_initial(struct it6616 *it6616)
{
struct device *dev = &it6616->hdmi_i2c->dev;
mutex_lock(&it6616->confctl_mutex);
/* get device id */
if (it6616_get_chip_id(it6616)) {
dev_err(dev, "can not find it6616");
return -ENODEV;
}
// init driver variables:
it6616->edid_len = sizeof(default_edid);
memcpy(it6616->edid_data, default_edid, it6616->edid_len);
// mipi common settings:
it6616->mipi.bus_type = MIPI_TX_INTERFACE;
it6616->mipi.lane_cnt = it6616->csi_lanes_in_use;
it6616->mipi.data_type = MIPI_TX_DATA_TYPE;
it6616->mipi_tx_enable_auto_adjust_lane_count =
MIPI_TX_ENABLE_AUTO_ADJUST_LANE_COUNT;
it6616->mipi_tx_enable_h_fire_packet =
MIPI_TX_ENABLE_H_FIRE_PACKET;
it6616->mipi_tx_enable_initial_fire_lp_cmd =
MIPI_TX_ENABLE_INITIAL_FIRE_LP_CMD;
// hdmi settings:
it6616->rs_level = DEFAULT_RS_LEVEL;
it6616->audio_interface = AUDIO_I2S;
it6616->audio_i2s_justified = AUDIO_I2S_JUSTIFIED;
it6616->hdmi_rx_disable_pixel_repeat =
HDMI_RX_DISABLE_PIXEL_REPEAT;
it6616->hdmi_rx_video_stable_condition =
HDMI_RX_VIDEO_STABLE_CONDITION;
it6616->mipi_tx_enable_continuous_clock =
MIPI_TX_ENABLE_CONTINUOUS_CLOCK;
it6616->mipi_tx_enable_manual_adjusted_d_phy =
MIPI_TX_ENABLE_MANUAL_ADJUSTED_D_PHY;
it6616->hdmi_rx_video_stable = false;
it6616->mipi_tx_video_stable = false;
it6616->hdmi_rx_hdcp_state = false;
it6616->mipi_tx_enable_mipi_output = false;
it6616_hdmi_rx_calc_rclk(it6616);
it6616_hdmi_initial(it6616);
it6616_hdmi_edid_ram_init(it6616);
it6616_mipitx_init_bus_para(it6616);
it6616_mipitx_initial(it6616);
mutex_unlock(&it6616->confctl_mutex);
return 0;
}
static __maybe_unused void it6616_set_hpd(struct it6616 *it6616, u8 hpd)
{
mutex_lock(&it6616->confctl_mutex);
if (hpd)
it6616_hdmi_hpd_trun_on(it6616);
else
it6616_hdmi_hpd_trun_off(it6616);
mutex_unlock(&it6616->confctl_mutex);
}
static __maybe_unused void it6616_update_edid_data(struct it6616 *it6616, u8 *edid, int edid_len)
{
mutex_lock(&it6616->confctl_mutex);
memcpy(it6616->edid_data, edid, it6616->edid_len);
it6616->edid_len = edid_len;
it6616_hdmi_edid_ram_init(it6616);
mutex_unlock(&it6616->confctl_mutex);
}
static const struct regmap_range it6616_hdmi_volatile_ranges[] = {
{ .range_min = 0, .range_max = 0xff },
};
static const struct regmap_access_table it6616_hdmi_volatile_table = {
.yes_ranges = it6616_hdmi_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(it6616_hdmi_volatile_ranges),
};
static const struct regmap_config it6616_hdmi_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &it6616_hdmi_volatile_table,
.cache_type = REGCACHE_NONE,
};
static const struct regmap_range it6616_mipi_volatile_ranges[] = {
{ .range_min = 0, .range_max = 0xff },
};
static const struct regmap_access_table it6616_mipi_volatile_table = {
.yes_ranges = it6616_mipi_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(it6616_mipi_volatile_ranges),
};
static const struct regmap_config it6616_mipi_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &it6616_mipi_volatile_table,
.cache_type = REGCACHE_NONE,
};
static const struct regmap_range it6616_edid_volatile_ranges[] = {
{ .range_min = 0, .range_max = 0xff },
};
static const struct regmap_access_table it6616_edid_volatile_table = {
.yes_ranges = it6616_edid_volatile_ranges,
.n_yes_ranges = ARRAY_SIZE(it6616_edid_volatile_ranges),
};
static const struct regmap_config it6616_edid_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &it6616_edid_volatile_table,
.cache_type = REGCACHE_NONE,
};
static ssize_t attr_buffer_put(char *buf, char *reg_buf)
{
int i = 0;
char *str = buf, *end = buf + PAGE_SIZE;
str += scnprintf(str, end - str,
" 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07");
str += scnprintf(str, end - str,
" 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F\n");
str += scnprintf(str, end - str,
"=============================================");
str += scnprintf(str, end - str,
"=======================================");
for (i = 0; i < 256; i++) {
if (i % 16 == 0)
str += scnprintf(str, end - str, "\n[%02X] ", i & 0xF0);
str += scnprintf(str, end - str, "0x%02X ", reg_buf[i]);
}
str += scnprintf(str, end - str, "\n");
return end - str;
}
static ssize_t edid_ram_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct it6616 *it6616 = dev_get_drvdata(dev);
u8 reg_buf[256];
dev_info(dev, "%s(%x)\n", __func__, it6616->attr_hdmi_reg_bank);
mutex_lock(&it6616->confctl_mutex);
it6616_hdmi_edid_ram_get(it6616, reg_buf);
mutex_unlock(&it6616->confctl_mutex);
return attr_buffer_put(buf, reg_buf);
}
static ssize_t hdmi_reg_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct it6616 *it6616 = dev_get_drvdata(dev);
int reg_bank;
if (kstrtoint(buf, 10, ®_bank) < 0)
return -EINVAL;
it6616->attr_hdmi_reg_bank = (u8) reg_bank;
dev_info(dev, "%s() %d, %x\n",
__func__, reg_bank, it6616->attr_hdmi_reg_bank);
return count;
}
static ssize_t hdmi_reg_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct it6616 *it6616 = dev_get_drvdata(dev);
struct regmap *hdmi = it6616->hdmi_regmap;
int i;
u8 reg_buf[256];
dev_info(dev, "%s(%x)\n", __func__, it6616->attr_hdmi_reg_bank);
mutex_lock(&it6616->confctl_mutex);
it6616_hdmi_chgbank(hdmi, it6616->attr_hdmi_reg_bank);
for (i = 0; i < 256; i++)
reg_buf[i] = it6616_hdmi_read(hdmi, i);
//regmap_bulk_read(dp, 0, reg_buf, 256);
it6616_hdmi_chgbank(hdmi, 0);
mutex_unlock(&it6616->confctl_mutex);
return attr_buffer_put(buf, reg_buf);
}
static ssize_t mipi_reg_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct it6616 *it6616 = dev_get_drvdata(dev);
struct regmap *mipi = it6616->mipi_regmap;
int i;
u8 reg_buf[256];
mutex_lock(&it6616->confctl_mutex);
for (i = 0; i < 256; i++)
reg_buf[i] = it6616_mipi_tx_read(mipi, i);
//regmap_bulk_read(mipi, 0, reg_buf, 256);
mutex_unlock(&it6616->confctl_mutex);
return attr_buffer_put(buf, reg_buf);
}
static ssize_t mipi_reg_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct it6616 *it6616 = dev_get_drvdata(dev);
struct regmap *mipi = it6616->mipi_regmap;
unsigned int addr, val;
int ret;
ret = sscanf(buf, "%X %X ", &addr, &val);
if (ret) {
dev_info(dev, "addr= %2.2X\n", addr);
dev_info(dev, "val = %2.2X\n", val);
if (((addr <= 0xFF) && (addr >= 0x00)) && ((val <= 0xFF) && (val >= 0x00)))
regmap_write(mipi, addr, val);
} else {
dev_info(dev, "it6616_fwrite_mipi_reg , error[%s]\n", buf);
}
return size;
}
static DEVICE_ATTR_RW(mipi_reg);
static DEVICE_ATTR_RO(edid_ram);
static DEVICE_ATTR_RW(hdmi_reg);
static const struct attribute *it6616_attrs[] = {
&dev_attr_hdmi_reg.attr,
&dev_attr_mipi_reg.attr,
&dev_attr_edid_ram.attr,
NULL,
};
static inline bool tx_5v_power_present(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
return it6616_hdmi_is_5v_on(it6616);
}
static inline bool no_signal(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
v4l2_dbg(1, debug, sd, "%s no signal:%d\n", __func__,
it6616->nosignal);
return it6616->nosignal;
}
static inline bool audio_present(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
return it6616->is_audio_present;
}
static int get_audio_sampling_rate(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
if (no_signal(sd))
return 0;
return code_to_rate_table[it6616->ainfo.force_sample_freq];
}
static inline unsigned int fps_calc(const struct v4l2_bt_timings *t)
{
if (!V4L2_DV_BT_FRAME_HEIGHT(t) || !V4L2_DV_BT_FRAME_WIDTH(t))
return 0;
return DIV_ROUND_CLOSEST((unsigned int)t->pixelclock,
V4L2_DV_BT_FRAME_HEIGHT(t) * V4L2_DV_BT_FRAME_WIDTH(t));
}
static bool it6616_rcv_supported_res(struct v4l2_subdev *sd, u32 width,
u32 height)
{
u32 i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
if ((supported_modes[i].width == width) &&
(supported_modes[i].height == height)) {
break;
}
}
if (i == ARRAY_SIZE(supported_modes)) {
v4l2_err(sd, "%s do not support res wxh: %dx%d\n", __func__,
width, height);
return false;
} else {
return true;
}
}
static int it6616_get_detected_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct it6616 *it6616 = to_it6616(sd);
struct v4l2_bt_timings *bt = &timings->bt;
u32 fps, htotal, vtotal;
memset(timings, 0, sizeof(struct v4l2_dv_timings));
it6616_hdmi_rx_get_video_info(it6616);
it6616->nosignal = false;
it6616->is_audio_present = tx_5v_power_present(sd) ? true : false;
timings->type = V4L2_DV_BT_656_1120;
bt->interlaced = it6616->vinfo.interlaced;
bt->width = it6616->vinfo.h_active;
bt->height = it6616->vinfo.v_active;
bt->vsync = it6616->vinfo.v_sync_w;
bt->hsync = it6616->vinfo.h_sync_w;
bt->pixelclock = it6616->vinfo.pclk * 1000;
bt->hfrontporch = it6616->vinfo.h_front_porch;
bt->vfrontporch = it6616->vinfo.v_front_porch;
bt->hbackporch = it6616->vinfo.h_back_porch;
bt->vbackporch = it6616->vinfo.v_back_porch;
htotal = it6616->vinfo.h_total;
vtotal = it6616->vinfo.v_total;
if (it6616->avi_if.colorspace == HDMI_COLORSPACE_YUV420) {
bt->width = it6616->vinfo.h_active * 2;
bt->hfrontporch = it6616->vinfo.h_front_porch * 2;
bt->hbackporch = it6616->vinfo.h_back_porch * 2;
bt->hsync = it6616->vinfo.h_sync_w * 2;
htotal = it6616->vinfo.h_total * 2;
}
fps = fps_calc(bt);
if (!it6616_rcv_supported_res(sd, bt->width, bt->height)) {
it6616->nosignal = true;
v4l2_err(sd, "%s: rcv err res, return no signal!\n", __func__);
return -EINVAL;
}
/* for interlaced res*/
if (bt->interlaced) {
bt->height *= 2;
bt->il_vsync = bt->vsync + 1;
}
v4l2_dbg(1, debug, sd, "act:%dx%d, total:%dx%d, pixclk:%d, fps:%d\n",
bt->width, bt->height, htotal, vtotal, bt->pixelclock, fps);
v4l2_dbg(1, debug, sd, "hfp:%d, hs:%d, hbp:%d, vfp:%d, vs:%d, vbp:%d\n",
bt->hfrontporch, bt->hsync, bt->hbackporch,
bt->vfrontporch, bt->vsync, bt->vbackporch);
v4l2_dbg(1, debug, sd, "inerlaced:%d,\n", bt->interlaced);
return 0;
}
static int it6616_s_ctrl_detect_tx_5v(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
return v4l2_ctrl_s_ctrl(it6616->detect_tx_5v_ctrl,
tx_5v_power_present(sd));
}
static int it6616_s_ctrl_audio_sampling_rate(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
return v4l2_ctrl_s_ctrl(it6616->audio_sampling_rate_ctrl,
get_audio_sampling_rate(sd));
}
static int it6616_s_ctrl_audio_present(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
return v4l2_ctrl_s_ctrl(it6616->audio_present_ctrl,
audio_present(sd));
}
static int it6616_update_controls(struct v4l2_subdev *sd)
{
int ret = 0;
ret |= it6616_s_ctrl_detect_tx_5v(sd);
ret |= it6616_s_ctrl_audio_sampling_rate(sd);
ret |= it6616_s_ctrl_audio_present(sd);
return ret;
}
static bool it6616_match_dv_timings(const struct v4l2_dv_timings *t1,
const struct v4l2_dv_timings *t2)
{
if (t1->type != t2->type || t1->type != V4L2_DV_BT_656_1120)
return false;
if (t1->bt.width == t2->bt.width &&
t1->bt.height == t2->bt.height &&
t1->bt.interlaced == t2->bt.interlaced &&
t1->bt.hfrontporch == t2->bt.hfrontporch &&
t1->bt.hsync == t2->bt.hsync &&
t1->bt.hbackporch == t2->bt.hbackporch &&
t1->bt.vfrontporch == t2->bt.vfrontporch &&
t1->bt.vsync == t2->bt.vsync &&
t1->bt.vbackporch == t2->bt.vbackporch &&
(!t1->bt.interlaced ||
(t1->bt.il_vfrontporch == t2->bt.il_vfrontporch &&
t1->bt.il_vsync == t2->bt.il_vsync &&
t1->bt.il_vbackporch == t2->bt.il_vbackporch)))
return true;
return false;
}
static void it6616_format_change(struct v4l2_subdev *sd)
{
struct it6616 *it6616 = to_it6616(sd);
struct v4l2_dv_timings timings;
const struct v4l2_event it6616_ev_fmt = {
.type = V4L2_EVENT_SOURCE_CHANGE,
.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
};
it6616_get_detected_timings(sd, &timings);
if (!it6616_match_dv_timings(&it6616->timings, &timings)) {
/* automatically set timing rather than set by user */
it6616_s_dv_timings(sd, &timings);
v4l2_print_dv_timings(sd->name,
"Format_change: New format: ",
&timings, false);
if (sd->devnode)
v4l2_subdev_notify_event(sd, &it6616_ev_fmt);
}
}
static int it6616_isr(struct v4l2_subdev *sd, u32 status, bool *handled)
{
struct it6616 *it6616 = to_it6616(sd);
static struct v4l2_dv_timings default_timing =
V4L2_DV_BT_CEA_640X480P59_94;
if (tx_5v_power_present(sd)) {
it6616_poll_threaded_handler(it6616);
it6616_intp_threaded_handler(0, it6616);
it6616_format_change(sd);
} else {
it6616_s_dv_timings(sd, &default_timing);
it6616->nosignal = true;
v4l2_dbg(1, debug, sd, "%s: HDMI unplug!!!\n", __func__);
}
*handled = true;
return 0;
}
static void it6616_work_i2c_poll(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct it6616 *it6616 = container_of(dwork,
struct it6616, work_i2c_poll);
bool handled;
it6616_s_ctrl_detect_tx_5v(&it6616->sd);
it6616_isr(&it6616->sd, 0, &handled);
schedule_delayed_work(&it6616->work_i2c_poll,
msecs_to_jiffies(POLL_INTERVAL_MS));
}
static int it6616_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub)
{
switch (sub->type) {
case V4L2_EVENT_SOURCE_CHANGE:
return v4l2_src_change_event_subdev_subscribe(sd, fh, sub);
case V4L2_EVENT_CTRL:
return v4l2_ctrl_subdev_subscribe_event(sd, fh, sub);
default:
return -EINVAL;
}
}
static int it6616_g_input_status(struct v4l2_subdev *sd, u32 *status)
{
*status = 0;
*status |= no_signal(sd) ? V4L2_IN_ST_NO_SIGNAL : 0;
v4l2_dbg(1, debug, sd, "%s: status = 0x%x\n", __func__, *status);
return 0;
}
static int it6616_s_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct it6616 *it6616 = to_it6616(sd);
if (!timings)
return -EINVAL;
if (debug)
v4l2_print_dv_timings(sd->name, "s_dv_timings: ",
timings, false);
if (v4l2_match_dv_timings(&it6616->timings, timings, 0, false)) {
v4l2_dbg(1, debug, sd, "%s: no change\n", __func__);
return 0;
}
if (!v4l2_valid_dv_timings(timings,
&it6616_timings_cap, NULL, NULL)) {
v4l2_dbg(1, debug, sd, "%s: timings out of range\n", __func__);
return -ERANGE;
}
it6616->timings = *timings;
return 0;
}
static int it6616_g_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct it6616 *it6616 = to_it6616(sd);
*timings = it6616->timings;
return 0;
}
static int it6616_enum_dv_timings(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings)
{
if (timings->pad != 0)
return -EINVAL;
return v4l2_enum_dv_timings_cap(timings,
&it6616_timings_cap, NULL, NULL);
}
static int it6616_query_dv_timings(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings)
{
struct it6616 *it6616 = to_it6616(sd);
*timings = it6616->timings;
if (debug)
v4l2_print_dv_timings(sd->name,
"query_dv_timings: ", timings, false);
if (!v4l2_valid_dv_timings(timings, &it6616_timings_cap, NULL,
NULL)) {
v4l2_dbg(1, debug, sd, "%s: timings out of range\n",
__func__);
return -ERANGE;
}
return 0;
}
static int it6616_dv_timings_cap(struct v4l2_subdev *sd,
struct v4l2_dv_timings_cap *cap)
{
if (cap->pad != 0)
return -EINVAL;
*cap = it6616_timings_cap;
return 0;
}
static int it6616_g_mbus_config(struct v4l2_subdev *sd,
unsigned int pad, struct v4l2_mbus_config *cfg)
{
struct it6616 *it6616 = to_it6616(sd);
cfg->type = V4L2_MBUS_CSI2_DPHY;
cfg->flags = V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK |
V4L2_MBUS_CSI2_CHANNEL_0;
switch (it6616->csi_lanes_in_use) {
case 1:
cfg->flags |= V4L2_MBUS_CSI2_1_LANE;
break;
case 2:
cfg->flags |= V4L2_MBUS_CSI2_2_LANE;
break;
case 3:
cfg->flags |= V4L2_MBUS_CSI2_3_LANE;
break;
case 4:
cfg->flags |= V4L2_MBUS_CSI2_4_LANE;
break;
default:
return -EINVAL;
}
return 0;
}
static int __it6616_start_stream(struct it6616 *it6616)
{
it6616_mipitx_output_disable(it6616);
usleep_range(1000, 2000);
it6616_mipi_tx_output_enable(it6616);
return 0;
}
static int __it6616_stop_stream(struct it6616 *it6616)
{
it6616_mipitx_output_disable(it6616);
return 0;
}
static int it6616_s_stream(struct v4l2_subdev *sd, int on)
{
struct it6616 *it6616 = to_it6616(sd);
struct i2c_client *client = it6616->i2c_client;
int ret = 0;
dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on,
it6616->cur_mode->width,
it6616->cur_mode->height,
DIV_ROUND_CLOSEST(it6616->cur_mode->max_fps.denominator,
it6616->cur_mode->max_fps.numerator));
mutex_lock(&it6616->confctl_mutex);
on = !!on;
if (on) {
ret = __it6616_start_stream(it6616);
if (ret) {
dev_err(it6616->dev, "Failed to start it6616 stream\n");
goto unlock_and_return;
}
} else {
__it6616_stop_stream(it6616);
}
unlock_and_return:
mutex_unlock(&it6616->confctl_mutex);
return 0;
}
static int it6616_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
switch (code->index) {
case 0:
code->code = IT6616_MEDIA_BUS_FMT;
break;
default:
return -EINVAL;
}
return 0;
}
static int it6616_enum_frame_sizes(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fse->code != IT6616_MEDIA_BUS_FMT)
return -EINVAL;
fse->min_width = supported_modes[fse->index].width;
fse->max_width = supported_modes[fse->index].width;
fse->max_height = supported_modes[fse->index].height;
fse->min_height = supported_modes[fse->index].height;
return 0;
}
static int it6616_get_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
struct it6616 *it6616 = to_it6616(sd);
mutex_lock(&it6616->confctl_mutex);
format->format.code = it6616->mbus_fmt_code;
format->format.width = it6616->timings.bt.width;
format->format.height = it6616->timings.bt.height;
format->format.field =
it6616->timings.bt.interlaced ?
V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE;
format->format.colorspace = V4L2_COLORSPACE_SRGB;
mutex_unlock(&it6616->confctl_mutex);
v4l2_dbg(1, debug, sd, "%s: fmt code:%d, w:%d, h:%d, field code:%d\n",
__func__, format->format.code, format->format.width,
format->format.height, format->format.field);
return 0;
}
static int it6616_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
if (fie->index >= ARRAY_SIZE(supported_modes))
return -EINVAL;
if (fie->code != IT6616_MEDIA_BUS_FMT)
return -EINVAL;
fie->width = supported_modes[fie->index].width;
fie->height = supported_modes[fie->index].height;
fie->interval = supported_modes[fie->index].max_fps;
return 0;
}
static int it6616_get_reso_dist(const struct it6616_mode *mode,
struct v4l2_mbus_framefmt *framefmt)
{
return abs(mode->width - framefmt->width) +
abs(mode->height - framefmt->height);
}
static const struct it6616_mode *
it6616_find_best_fit(struct v4l2_subdev_format *fmt)
{
struct v4l2_mbus_framefmt *framefmt = &fmt->format;
int dist;
int cur_best_fit = 0;
int cur_best_fit_dist = -1;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
dist = it6616_get_reso_dist(&supported_modes[i], framefmt);
if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
cur_best_fit_dist = dist;
cur_best_fit = i;
}
}
return &supported_modes[cur_best_fit];
}
static int it6616_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_format *format)
{
struct it6616 *it6616 = to_it6616(sd);
const struct it6616_mode *mode;
/* is overwritten by get_fmt */
u32 code = format->format.code;
int ret = it6616_get_fmt(sd, cfg, format);
format->format.code = code;
if (ret)
return ret;
switch (code) {
case IT6616_MEDIA_BUS_FMT:
break;
default:
return -EINVAL;
}
if (format->which == V4L2_SUBDEV_FORMAT_TRY)
return 0;
it6616->mbus_fmt_code = format->format.code;
mode = it6616_find_best_fit(format);
it6616->cur_mode = mode;
return 0;
}
static int it6616_g_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *fi)
{
struct it6616 *it6616 = to_it6616(sd);
const struct it6616_mode *mode = it6616->cur_mode;
mutex_lock(&it6616->confctl_mutex);
fi->interval = mode->max_fps;
mutex_unlock(&it6616->confctl_mutex);
return 0;
}
static void it6616_get_module_inf(struct it6616 *it6616,
struct rkmodule_inf *inf)
{
memset(inf, 0, sizeof(*inf));
strscpy(inf->base.sensor, IT6616_NAME, sizeof(inf->base.sensor));
strscpy(inf->base.module, it6616->module_name, sizeof(inf->base.module));
strscpy(inf->base.lens, it6616->len_name, sizeof(inf->base.lens));
}
static long it6616_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct it6616 *it6616 = to_it6616(sd);
long ret = 0;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
it6616_get_module_inf(it6616, (struct rkmodule_inf *)arg);
break;
case RKMODULE_GET_HDMI_MODE:
*(int *)arg = RKMODULE_HDMIIN_MODE;
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
static int it6616_s_power(struct v4l2_subdev *sd, int on)
{
struct it6616 *it6616 = to_it6616(sd);
int ret = 0;
mutex_lock(&it6616->confctl_mutex);
if (it6616->power_on == !!on)
goto unlock_and_return;
if (on)
it6616->power_on = true;
else
it6616->power_on = false;
unlock_and_return:
mutex_unlock(&it6616->confctl_mutex);
return ret;
}
#ifdef CONFIG_COMPAT
static long it6616_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
void __user *up = compat_ptr(arg);
struct rkmodule_inf *inf;
long ret;
int *seq;
switch (cmd) {
case RKMODULE_GET_MODULE_INFO:
inf = kzalloc(sizeof(*inf), GFP_KERNEL);
if (!inf) {
ret = -ENOMEM;
return ret;
}
ret = it6616_ioctl(sd, cmd, inf);
if (!ret) {
ret = copy_to_user(up, inf, sizeof(*inf));
if (ret)
ret = -EFAULT;
}
kfree(inf);
break;
case RKMODULE_GET_HDMI_MODE:
seq = kzalloc(sizeof(*seq), GFP_KERNEL);
if (!seq) {
ret = -ENOMEM;
return ret;
}
ret = it6616_ioctl(sd, cmd, seq);
if (!ret) {
ret = copy_to_user(up, seq, sizeof(*seq));
if (ret)
ret = -EFAULT;
}
kfree(seq);
break;
default:
ret = -ENOIOCTLCMD;
break;
}
return ret;
}
#endif
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int it6616_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct it6616 *it6616 = to_it6616(sd);
struct v4l2_mbus_framefmt *try_fmt =
v4l2_subdev_get_try_format(sd, fh->pad, 0);
const struct it6616_mode *def_mode = &supported_modes[0];
mutex_lock(&it6616->confctl_mutex);
/* Initialize try_fmt */
try_fmt->width = def_mode->width;
try_fmt->height = def_mode->height;
try_fmt->code = IT6616_MEDIA_BUS_FMT;
try_fmt->field = V4L2_FIELD_NONE;
mutex_unlock(&it6616->confctl_mutex);
return 0;
}
#endif
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops it6616_internal_ops = {
.open = it6616_open,
};
#endif
static const struct v4l2_subdev_core_ops it6616_core_ops = {
.s_power = it6616_s_power,
.interrupt_service_routine = it6616_isr,
.subscribe_event = it6616_subscribe_event,
.unsubscribe_event = v4l2_event_subdev_unsubscribe,
.ioctl = it6616_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = it6616_compat_ioctl32,
#endif
};
static const struct v4l2_subdev_video_ops it6616_video_ops = {
.g_input_status = it6616_g_input_status,
.s_dv_timings = it6616_s_dv_timings,
.g_dv_timings = it6616_g_dv_timings,
.query_dv_timings = it6616_query_dv_timings,
.s_stream = it6616_s_stream,
.g_frame_interval = it6616_g_frame_interval,
};
static const struct v4l2_subdev_pad_ops it6616_pad_ops = {
.enum_mbus_code = it6616_enum_mbus_code,
.enum_frame_size = it6616_enum_frame_sizes,
.enum_frame_interval = it6616_enum_frame_interval,
.set_fmt = it6616_set_fmt,
.get_fmt = it6616_get_fmt,
.enum_dv_timings = it6616_enum_dv_timings,
.dv_timings_cap = it6616_dv_timings_cap,
.get_mbus_config = it6616_g_mbus_config,
};
static const struct v4l2_subdev_ops it6616_ops = {
.core = &it6616_core_ops,
.video = &it6616_video_ops,
.pad = &it6616_pad_ops,
};
static const struct v4l2_ctrl_config it6616_ctrl_audio_sampling_rate = {
.id = RK_V4L2_CID_AUDIO_SAMPLING_RATE,
.name = "Audio sampling rate",
.type = V4L2_CTRL_TYPE_INTEGER,
.min = 0,
.max = 768000,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_READ_ONLY,
};
static const struct v4l2_ctrl_config it6616_ctrl_audio_present = {
.id = RK_V4L2_CID_AUDIO_PRESENT,
.name = "Audio present",
.type = V4L2_CTRL_TYPE_BOOLEAN,
.min = 0,
.max = 1,
.step = 1,
.def = 0,
.flags = V4L2_CTRL_FLAG_READ_ONLY,
};
static void it6616_reset(struct it6616 *it6616)
{
gpiod_set_value(it6616->reset_gpio, 0);
usleep_range(2000, 2100);
gpiod_set_value(it6616->reset_gpio, 1);
usleep_range(120*1000, 121*1000);
gpiod_set_value(it6616->reset_gpio, 0);
usleep_range(300*1000, 310*1000);
}
static int it6616_init_v4l2_ctrls(struct it6616 *it6616)
{
struct v4l2_subdev *sd;
int ret;
sd = &it6616->sd;
ret = v4l2_ctrl_handler_init(&it6616->hdl, 5);
if (ret)
return ret;
it6616->link_freq = v4l2_ctrl_new_int_menu(&it6616->hdl, NULL,
V4L2_CID_LINK_FREQ,
ARRAY_SIZE(link_freq_menu_items) - 1, 0,
link_freq_menu_items);
it6616->pixel_rate = v4l2_ctrl_new_std(&it6616->hdl, NULL,
V4L2_CID_PIXEL_RATE,
0, IT6616_PIXEL_RATE, 1, IT6616_PIXEL_RATE);
it6616->detect_tx_5v_ctrl = v4l2_ctrl_new_std(&it6616->hdl,
NULL, V4L2_CID_DV_RX_POWER_PRESENT,
0, 1, 0, 0);
it6616->audio_sampling_rate_ctrl =
v4l2_ctrl_new_custom(&it6616->hdl,
&it6616_ctrl_audio_sampling_rate, NULL);
it6616->audio_present_ctrl = v4l2_ctrl_new_custom(&it6616->hdl,
&it6616_ctrl_audio_present, NULL);
sd->ctrl_handler = &it6616->hdl;
if (it6616->hdl.error) {
ret = it6616->hdl.error;
v4l2_err(sd, "cfg v4l2 ctrls failed! ret:%d\n", ret);
return ret;
}
__v4l2_ctrl_s_ctrl(it6616->link_freq, link_freq_menu_items[0]);
__v4l2_ctrl_s_ctrl_int64(it6616->pixel_rate, IT6616_PIXEL_RATE);
if (it6616_update_controls(sd)) {
ret = -ENODEV;
v4l2_err(sd, "update v4l2 ctrls failed! ret:%d\n", ret);
return ret;
}
return 0;
}
#ifdef CONFIG_OF
static int it6616_probe_of(struct it6616 *it6616)
{
struct device *dev = &it6616->i2c_client->dev;
struct device_node *node = dev->of_node;
struct v4l2_fwnode_endpoint endpoint = { .bus_type = 0 };
struct device_node *ep;
int ret;
ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX,
&it6616->module_index);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING,
&it6616->module_facing);
ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME,
&it6616->module_name);
ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME,
&it6616->len_name);
if (ret) {
dev_err(dev, "could not get module information!\n");
return -EINVAL;
}
it6616->power_gpio = devm_gpiod_get_optional(dev, "power",
GPIOD_OUT_LOW);
if (IS_ERR(it6616->power_gpio)) {
dev_err(dev, "failed to get power gpio\n");
ret = PTR_ERR(it6616->power_gpio);
return ret;
}
it6616->reset_gpio = devm_gpiod_get_optional(dev, "reset",
GPIOD_OUT_HIGH);
if (IS_ERR(it6616->reset_gpio)) {
dev_err(dev, "failed to get reset gpio\n");
ret = PTR_ERR(it6616->reset_gpio);
return ret;
}
ep = of_graph_get_next_endpoint(dev->of_node, NULL);
if (!ep) {
dev_err(dev, "missing endpoint node\n");
return -EINVAL;
}
ret = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep), &endpoint);
if (ret) {
dev_err(dev, "failed to parse endpoint\n");
goto put_node;
}
if (endpoint.bus_type != V4L2_MBUS_CSI2_DPHY ||
endpoint.bus.mipi_csi2.num_data_lanes == 0) {
dev_err(dev, "missing CSI-2 properties in endpoint\n");
ret = -EINVAL;
goto free_endpoint;
}
it6616->xvclk = devm_clk_get(dev, "xvclk");
if (IS_ERR(it6616->xvclk)) {
dev_err(dev, "failed to get xvclk\n");
ret = -EINVAL;
goto free_endpoint;
}
ret = clk_prepare_enable(it6616->xvclk);
if (ret) {
dev_err(dev, "Failed! to enable xvclk\n");
goto free_endpoint;
}
it6616->csi_lanes_in_use = endpoint.bus.mipi_csi2.num_data_lanes;
it6616->bus = endpoint.bus.mipi_csi2;
gpiod_set_value(it6616->power_gpio, 1);
it6616_reset(it6616);
ret = 0;
free_endpoint:
v4l2_fwnode_endpoint_free(&endpoint);
put_node:
of_node_put(ep);
return ret;
}
#else
static inline int it6616_probe_of(struct it6616 *state)
{
return -ENODEV;
}
#endif
static ssize_t audio_present_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct it6616 *it6616 = g_it6616;
return snprintf(buf, PAGE_SIZE, "%d\n",
tx_5v_power_present(&it6616->sd) ? 1 : 0);
}
static ssize_t audio_rate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct it6616 *it6616 = g_it6616;
return snprintf(buf, PAGE_SIZE, "%d\n",
code_to_rate_table[it6616->ainfo.force_sample_freq]);
}
static DEVICE_ATTR_RO(audio_present);
static DEVICE_ATTR_RO(audio_rate);
static int it6616_create_class_attr(struct it6616 *it6616)
{
int ret = 0;
it6616->hdmirx_class = class_create(THIS_MODULE, "hdmirx_it6616");
if (IS_ERR(it6616->hdmirx_class)) {
ret = -ENOMEM;
dev_err(it6616->dev, "failed to create hdmirx_it6616 class!\n");
return ret;
}
it6616->classdev = device_create(it6616->hdmirx_class, NULL,
MKDEV(0, 0), NULL, "hdmirx_it6616");
if (IS_ERR(it6616->classdev)) {
ret = PTR_ERR(it6616->classdev);
dev_err(it6616->dev, "Failed to create device\n");
goto err1;
}
ret = device_create_file(it6616->classdev,
&dev_attr_audio_present);
if (ret) {
dev_err(it6616->dev, "failed to create attr audio_present!\n");
goto err1;
}
ret = device_create_file(it6616->classdev,
&dev_attr_audio_rate);
if (ret) {
dev_err(it6616->dev,
"failed to create attr audio_rate!\n");
goto err;
}
return ret;
err:
device_remove_file(it6616->classdev, &dev_attr_audio_present);
err1:
class_destroy(it6616->hdmirx_class);
return ret;
}
static void it6616_remove_class_attr(struct it6616 *it6616)
{
device_remove_file(it6616->classdev, &dev_attr_audio_rate);
device_remove_file(it6616->classdev, &dev_attr_audio_present);
class_destroy(it6616->hdmirx_class);
}
static int it6616_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct it6616 *it6616;
struct v4l2_subdev *sd;
struct device *dev = &client->dev;
char facing[2];
int err = 0;
dev_info(dev, "driver version: %02x.%02x.%02x",
DRIVER_VERSION >> 16,
(DRIVER_VERSION & 0xff00) >> 8,
DRIVER_VERSION & 0x00ff);
it6616 = devm_kzalloc(dev, sizeof(struct it6616), GFP_KERNEL);
if (!it6616)
return -ENOMEM;
sd = &it6616->sd;
it6616->hdmi_i2c = client;
it6616->mipi_i2c = i2c_new_dummy_device(client->adapter,
I2C_ADR_MIPI >> 1);
if (!it6616->mipi_i2c)
return -EIO;
it6616->edid_i2c = i2c_new_dummy_device(client->adapter,
I2C_ADR_EDID >> 1);
if (!it6616->edid_i2c)
goto unregister_mipi_i2c;
it6616->hdmi_regmap = devm_regmap_init_i2c(client,
&it6616_hdmi_regmap_config);
if (IS_ERR(it6616->hdmi_i2c)) {
err = PTR_ERR(it6616->hdmi_i2c);
goto unregister_edid_i2c;
}
it6616->mipi_regmap = devm_regmap_init_i2c(it6616->mipi_i2c,
&it6616_mipi_regmap_config);
if (IS_ERR(it6616->mipi_regmap)) {
err = PTR_ERR(it6616->mipi_regmap);
goto unregister_edid_i2c;
}
it6616->edid_regmap = devm_regmap_init_i2c(it6616->edid_i2c,
&it6616_edid_regmap_config);
if (IS_ERR(it6616->edid_regmap)) {
err = PTR_ERR(it6616->edid_regmap);
goto unregister_edid_i2c;
}
it6616->dev = dev;
it6616->cur_mode = &supported_modes[0];
it6616->i2c_client = client;
it6616->mbus_fmt_code = IT6616_MEDIA_BUS_FMT;
err = it6616_probe_of(it6616);
if (err) {
v4l2_err(sd, "it6616_parse_of failed! err:%d\n", err);
return err;
}
it6616_reset(it6616);
mutex_init(&it6616->confctl_mutex);
err = it6616_initial(it6616);
if (err) {
dev_err(dev, "it6616_initial failed: %d", err);
err = -ENODEV;
goto unregister_edid_i2c;
}
err = sysfs_create_files(&client->dev.kobj, it6616_attrs);
if (err) {
dev_err(dev, "sysfs_create_files failed: %d", err);
goto unregister_edid_i2c;
}
i2c_set_clientdata(client, it6616);
usleep_range(3000, 6000);
err = it6616_init_v4l2_ctrls(it6616);
if (err)
goto err_free_hdl;
client->flags |= I2C_CLIENT_SCCB;
#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
v4l2_i2c_subdev_init(sd, client, &it6616_ops);
sd->internal_ops = &it6616_internal_ops;
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
#endif
#if defined(CONFIG_MEDIA_CONTROLLER)
it6616->pad.flags = MEDIA_PAD_FL_SOURCE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
err = media_entity_pads_init(&sd->entity, 1, &it6616->pad);
if (err < 0) {
v4l2_err(sd, "media entity init failed! err:%d\n", err);
goto err_free_hdl;
}
#endif
memset(facing, 0, sizeof(facing));
if (strcmp(it6616->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
it6616->module_index, facing,
IT6616_NAME, dev_name(sd->dev));
err = v4l2_async_register_subdev_sensor_common(sd);
if (err < 0) {
v4l2_err(sd, "v4l2 register subdev failed! err:%d\n", err);
goto err_clean_entity;
}
err = it6616_create_class_attr(it6616);
if (err) {
dev_err(it6616->dev, "create class attr failed! err:%d\n", err);
return -ENODEV;
}
INIT_DELAYED_WORK(&it6616->work_i2c_poll, it6616_work_i2c_poll);
schedule_delayed_work(&it6616->work_i2c_poll, msecs_to_jiffies(500));
err = v4l2_ctrl_handler_setup(sd->ctrl_handler);
if (err) {
v4l2_err(sd, "v4l2 ctrl handler setup failed! err:%d\n", err);
goto err_work_queues;
}
v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
client->addr << 1, client->adapter->name);
g_it6616 = it6616;
return 0;
err_work_queues:
cancel_delayed_work_sync(&it6616->work_i2c_poll);
err_clean_entity:
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
err_free_hdl:
v4l2_ctrl_handler_free(&it6616->hdl);
mutex_destroy(&it6616->confctl_mutex);
unregister_edid_i2c:
i2c_unregister_device(it6616->edid_i2c);
unregister_mipi_i2c:
i2c_unregister_device(it6616->mipi_i2c);
return err;
}
static int it6616_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct it6616 *it6616 = to_it6616(sd);
cancel_delayed_work_sync(&it6616->work_i2c_poll);
it6616_remove_class_attr(it6616);
v4l2_async_unregister_subdev(sd);
v4l2_device_unregister_subdev(sd);
#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
#endif
v4l2_ctrl_handler_free(&it6616->hdl);
sysfs_remove_files(&client->dev.kobj, it6616_attrs);
mutex_destroy(&it6616->confctl_mutex);
i2c_unregister_device(it6616->mipi_i2c);
i2c_unregister_device(it6616->edid_i2c);
clk_disable_unprepare(it6616->xvclk);
return 0;
}
#if IS_ENABLED(CONFIG_OF)
static const struct of_device_id it6616_of_match[] = {
{ .compatible = "ite,it6616" },
{},
};
MODULE_DEVICE_TABLE(of, it6616_of_match);
#endif
static struct i2c_driver it6616_driver = {
.driver = {
.name = IT6616_NAME,
.of_match_table = of_match_ptr(it6616_of_match),
},
.probe = it6616_probe,
.remove = it6616_remove,
};
static int __init it6616_driver_init(void)
{
return i2c_add_driver(&it6616_driver);
}
static void __exit it6616_driver_exit(void)
{
i2c_del_driver(&it6616_driver);
}
device_initcall_sync(it6616_driver_init);
module_exit(it6616_driver_exit);
MODULE_DESCRIPTION("ITE it6616 HDMI to CSI-2 bridge driver");
MODULE_AUTHOR("Jianwei Fan <jianwei.fan@rock-chips.com>");
MODULE_AUTHOR("Kenneth Hung<Kenneth.Hung@ite.com.tw>");
MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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