637 lines
20 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* techpoint lib
*
* Copyright (C) 2023 Rockchip Electronics Co., Ltd.
*/
#include "techpoint_tp9951.h"
#include "techpoint_dev.h"
static struct techpoint_video_modes supported_modes[] = {
#if TP9951_DEF_PAL
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 960,
.height = 576,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.link_freq_value = TP9951_LINK_FREQ_148M,
.common_reg_list = NULL,
.common_reg_size = 0,
.bpp = TP9951_BITS_PER_SAMPLE,
.lane = TP9951_LANES,
.vc[PAD0] = 0,
.vc[PAD1] = 1,
.vc[PAD2] = 2,
.vc[PAD3] = 3,
},
#endif
#if TP9951_DEF_NTSC
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 960,
.height = 480,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.link_freq_value = TP9951_LINK_FREQ_148M,
.common_reg_list = NULL,
.common_reg_size = 0,
.bpp = TP9951_BITS_PER_SAMPLE,
.lane = TP9951_LANES,
.vc[PAD0] = 0,
.vc[PAD1] = 1,
.vc[PAD2] = 2,
.vc[PAD3] = 3,
},
#endif
#if TP9951_DEF_1080P
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 1920,
.height = 1080,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.link_freq_value = TP9951_LINK_FREQ_594M,
//.link_freq_value = TP9951_LINK_FREQ_297M,
.common_reg_list = NULL,
.common_reg_size = 0,
.bpp = TP9951_BITS_PER_SAMPLE,
.lane = TP9951_LANES,
.vc[PAD0] = 0,
.vc[PAD1] = 1,
.vc[PAD2] = 2,
.vc[PAD3] = 3,
},
#endif
#if TP9951_DEF_720P
{
.bus_fmt = MEDIA_BUS_FMT_UYVY8_2X8,
.width = 1280,
.height = 720,
.max_fps = {
.numerator = 10000,
.denominator = 250000,
},
.link_freq_value = TP9951_LINK_FREQ_297M,
.common_reg_list = NULL,
.common_reg_size = 0,
.bpp = TP9951_BITS_PER_SAMPLE,
.lane = TP9951_LANES,
.vc[PAD0] = 0,
.vc[PAD1] = 1,
.vc[PAD2] = 2,
.vc[PAD3] = 3,
},
#endif
};
int tp9951_initialize(struct techpoint *techpoint)
{
int array_size = 0;
struct i2c_client *client = techpoint->client;
struct device *dev = &client->dev;
techpoint->video_modes_num = ARRAY_SIZE(supported_modes);
array_size =
sizeof(struct techpoint_video_modes) * techpoint->video_modes_num;
techpoint->video_modes = devm_kzalloc(dev, array_size, GFP_KERNEL);
memcpy(techpoint->video_modes, supported_modes, array_size);
techpoint->cur_video_mode = &techpoint->video_modes[0];
return 0;
}
int tp9951_get_channel_input_status(struct techpoint *techpoint, u8 ch)
{
u8 val = 0;
struct i2c_client *client = techpoint->client;
if (ch != 0) // tp9951 just support 1 chn
return 0;
techpoint_write_reg(client, PAGE_REG, ch);
techpoint_read_reg(client, INPUT_STATUS_REG, &val);
dev_dbg(&client->dev, "input_status ch %d : %x\n", ch, val);
return (val & INPUT_STATUS_MASK) ? 0 : 1;
}
int tp9951_get_all_input_status(struct techpoint *techpoint, u8 *detect_status)
{
u8 val = 0;
struct i2c_client *client = techpoint->client;
// tp9951 just support 1 chn
techpoint_write_reg(client, PAGE_REG, 0);
techpoint_read_reg(client, INPUT_STATUS_REG, &val);
detect_status[0] = tp9951_get_channel_input_status(techpoint, 0);
return 0;
}
static void tp9951_set_mipi_out(struct i2c_client *client,
enum techpoint_support_reso reso,
unsigned char lane)
{
u8 tmp;
//mipi setting
techpoint_write_reg(client, PAGE_REG, 0x08); //select MIPI page
techpoint_write_reg(client, 0x02, 0x7d);
techpoint_write_reg(client, 0x03, 0x75);
techpoint_write_reg(client, 0x04, 0x75);
techpoint_write_reg(client, 0x13, 0xef);
techpoint_write_reg(client, 0x20, 0x00);
techpoint_write_reg(client, 0x23, 0x9e);
if (lane == MIPI_1LANE) {
techpoint_write_reg(client, 0x21, 0x11);
if (TECHPOINT_S_RESO_1080P_30 == reso || TECHPOINT_S_RESO_1080P_25 == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x00);
techpoint_write_reg(client, 0x15, 0x02);
techpoint_write_reg(client, 0x2a, 0x08);
techpoint_write_reg(client, 0x2b, 0x06);
techpoint_write_reg(client, 0x2c, 0x12);
techpoint_write_reg(client, 0x2e, 0x0a);
} else if (TECHPOINT_S_RESO_720P_30 == reso || TECHPOINT_S_RESO_720P_25 == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x00);
techpoint_write_reg(client, 0x15, 0x12);
techpoint_write_reg(client, 0x2a, 0x04);
techpoint_write_reg(client, 0x2b, 0x03);
techpoint_write_reg(client, 0x2c, 0x0a);
techpoint_write_reg(client, 0x2e, 0x02);
} else if (TECHPOINT_S_RESO_NTSC == reso || TECHPOINT_S_RESO_PAL == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x51);
techpoint_write_reg(client, 0x15, 0x07);
techpoint_write_reg(client, 0x2a, 0x02);
techpoint_write_reg(client, 0x2b, 0x01);
techpoint_write_reg(client, 0x2c, 0x06);
techpoint_write_reg(client, 0x2e, 0x02);
}
} else { // 2 lane
techpoint_write_reg(client, 0x21, 0x12);
if (TECHPOINT_S_RESO_1080P_30 == reso || TECHPOINT_S_RESO_1080P_25 == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x41);
techpoint_write_reg(client, 0x15, 0x02);
techpoint_write_reg(client, 0x2a, 0x04);
techpoint_write_reg(client, 0x2b, 0x03);
techpoint_write_reg(client, 0x2c, 0x0a);
techpoint_write_reg(client, 0x2e, 0x02);
} else if (TECHPOINT_S_RESO_720P_30 == reso || TECHPOINT_S_RESO_720P_25 == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x41);
techpoint_write_reg(client, 0x15, 0x12);
techpoint_write_reg(client, 0x2a, 0x02);
techpoint_write_reg(client, 0x2b, 0x01);
techpoint_write_reg(client, 0x2c, 0x06);
techpoint_write_reg(client, 0x2e, 0x02);
} else if (TECHPOINT_S_RESO_NTSC == reso || TECHPOINT_S_RESO_PAL == reso) {
techpoint_write_reg(client, 0x12, 0x54);
techpoint_write_reg(client, 0x14, 0x62);
techpoint_write_reg(client, 0x15, 0x07);
techpoint_write_reg(client, 0x2a, 0x02);
techpoint_write_reg(client, 0x2b, 0x00);
techpoint_write_reg(client, 0x2c, 0x04);
techpoint_write_reg(client, 0x2e, 0x02);
}
}
techpoint_write_reg(client, PAGE_REG, 0x00); //back to decoder page
techpoint_read_reg(client, 0x06, &tmp); //PLL reset
techpoint_write_reg(client, 0x06, 0x80 | tmp);
techpoint_write_reg(client, PAGE_REG, 0x08); //back to mipi page
techpoint_read_reg(client, 0x14, &tmp); //PLL reset
techpoint_write_reg(client, 0x14, 0x80 | tmp);
techpoint_write_reg(client, 0x14, tmp);
/* Enable MIPI CSI2 output */
techpoint_write_reg(client, 0x28, 0x02); //stream off
techpoint_write_reg(client, 0x28, 0x00); //stream on
techpoint_write_reg(client, PAGE_REG, 0x00); //back to decoder page
}
int tp9951_set_channel_reso(struct i2c_client *client, int ch,
enum techpoint_support_reso reso)
{
int val = reso;
dev_info(&client->dev, "##$$ %s", __func__);
techpoint_write_reg(client, 0x40, 0x00); //select decoder page
techpoint_write_reg(client, 0x06, 0x12); //default value
techpoint_write_reg(client, 0x42, 0x00); //common setting for all format
techpoint_write_reg(client, 0x4e, 0x00); //common setting for MIPI output
techpoint_write_reg(client, 0x54, 0x00); //common setting for MIPI output
techpoint_write_reg(client, 0x41, ch); //video MUX select
switch (val) {
case TECHPOINT_S_RESO_720P_25:
#if TP9951_DEF_720P
default:
#endif
dev_err(&client->dev, "set channel 720P_25\n");
techpoint_write_reg(client, 0x02, 0x42);
techpoint_write_reg(client, 0x07, 0xc0);
techpoint_write_reg(client, 0x0b, 0xc0);
techpoint_write_reg(client, 0x0c, 0x13);
techpoint_write_reg(client, 0x0d, 0x50);
techpoint_write_reg(client, 0x15, 0x13);
techpoint_write_reg(client, 0x16, 0x15);
techpoint_write_reg(client, 0x17, 0x00);
techpoint_write_reg(client, 0x18, 0x19);
techpoint_write_reg(client, 0x19, 0xd0);
techpoint_write_reg(client, 0x1a, 0x25);
techpoint_write_reg(client, 0x1c, 0x07);//1280*720, 25fps
techpoint_write_reg(client, 0x1d, 0xbc);//1280*720, 25fps
techpoint_write_reg(client, 0x20, 0x30);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x36);
techpoint_write_reg(client, 0x23, 0x3c);
techpoint_write_reg(client, 0x2b, 0x60);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x30);
techpoint_write_reg(client, 0x2e, 0x70);
techpoint_write_reg(client, 0x30, 0x48);
techpoint_write_reg(client, 0x31, 0xbb);
techpoint_write_reg(client, 0x32, 0x2e);
techpoint_write_reg(client, 0x33, 0x90);
techpoint_write_reg(client, 0x35, 0x25);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x18);
if (STD_HDA) {
techpoint_write_reg(client, 0x02, 0x46);
techpoint_write_reg(client, 0x0d, 0x71);
techpoint_write_reg(client, 0x18, 0x1b);
techpoint_write_reg(client, 0x20, 0x40);
techpoint_write_reg(client, 0x21, 0x46);
techpoint_write_reg(client, 0x25, 0xfe);
techpoint_write_reg(client, 0x26, 0x01);
techpoint_write_reg(client, 0x2c, 0x3a);
techpoint_write_reg(client, 0x2d, 0x5a);
techpoint_write_reg(client, 0x2e, 0x40);
techpoint_write_reg(client, 0x30, 0x9e);
techpoint_write_reg(client, 0x31, 0x20);
techpoint_write_reg(client, 0x32, 0x10);
techpoint_write_reg(client, 0x33, 0x90);
}
tp9951_set_mipi_out(client, reso, MIPI_2LANE); // 2 lane
break;
case TECHPOINT_S_RESO_1080P_25: // FHD25
#if TP9951_DEF_1080P
default:
#endif
dev_err(&client->dev, "set channel 1080P_25\n");
techpoint_write_reg(client, 0x02, 0x40);
techpoint_write_reg(client, 0x07, 0xc0);
techpoint_write_reg(client, 0x0b, 0xc0);
techpoint_write_reg(client, 0x0c, 0x03);
techpoint_write_reg(client, 0x0d, 0x50);
techpoint_write_reg(client, 0x15, 0x03);
techpoint_write_reg(client, 0x16, 0xd2);
techpoint_write_reg(client, 0x17, 0x80);
techpoint_write_reg(client, 0x18, 0x29);
techpoint_write_reg(client, 0x19, 0x38);
techpoint_write_reg(client, 0x1a, 0x47);
techpoint_write_reg(client, 0x1c, 0x0a); //1920*1080, 25fps
techpoint_write_reg(client, 0x1d, 0x50);
techpoint_write_reg(client, 0x20, 0x30);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x36);
techpoint_write_reg(client, 0x23, 0x3c);
techpoint_write_reg(client, 0x2b, 0x60);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x30);
techpoint_write_reg(client, 0x2e, 0x70);
techpoint_write_reg(client, 0x30, 0x48);
techpoint_write_reg(client, 0x31, 0xbb);
techpoint_write_reg(client, 0x32, 0x2e);
techpoint_write_reg(client, 0x33, 0x90);
techpoint_write_reg(client, 0x35, 0x05);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x1C);
if (STD_HDA) {
techpoint_write_reg(client, 0x02, 0x44);
techpoint_write_reg(client, 0x0d, 0x73);
techpoint_write_reg(client, 0x15, 0x01);
techpoint_write_reg(client, 0x16, 0xf0);
techpoint_write_reg(client, 0x18, 0x2a);
techpoint_write_reg(client, 0x20, 0x3c);
techpoint_write_reg(client, 0x21, 0x46);
techpoint_write_reg(client, 0x25, 0xfe);
techpoint_write_reg(client, 0x26, 0x0d);
techpoint_write_reg(client, 0x2c, 0x3a);
techpoint_write_reg(client, 0x2d, 0x54);
techpoint_write_reg(client, 0x2e, 0x40);
techpoint_write_reg(client, 0x30, 0xa5);
techpoint_write_reg(client, 0x31, 0x86);
techpoint_write_reg(client, 0x32, 0xfb);
techpoint_write_reg(client, 0x33, 0x60);
}
tp9951_set_mipi_out(client, reso, MIPI_2LANE); // 2 lane
break;
case TECHPOINT_S_RESO_1080P_30: // FHD30
dev_err(&client->dev, "set channel PAL\n");
techpoint_write_reg(client, 0x02, 0x40);
techpoint_write_reg(client, 0x07, 0xc0);
techpoint_write_reg(client, 0x0b, 0xc0);
techpoint_write_reg(client, 0x0c, 0x03);
techpoint_write_reg(client, 0x0d, 0x50);
techpoint_write_reg(client, 0x15, 0x03);
techpoint_write_reg(client, 0x16, 0xd2);
techpoint_write_reg(client, 0x17, 0x80);
techpoint_write_reg(client, 0x18, 0x29);
techpoint_write_reg(client, 0x19, 0x38);
techpoint_write_reg(client, 0x1a, 0x47);
techpoint_write_reg(client, 0x1c, 0x08); //1920*1080, 30fps
techpoint_write_reg(client, 0x1d, 0x98); //
techpoint_write_reg(client, 0x20, 0x30);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x36);
techpoint_write_reg(client, 0x23, 0x3c);
techpoint_write_reg(client, 0x2b, 0x60);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x30);
techpoint_write_reg(client, 0x2e, 0x70);
techpoint_write_reg(client, 0x30, 0x48);
techpoint_write_reg(client, 0x31, 0xbb);
techpoint_write_reg(client, 0x32, 0x2e);
techpoint_write_reg(client, 0x33, 0x90);
techpoint_write_reg(client, 0x35, 0x05);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x1C);
if (STD_HDA) { //AHD1080p30 extra
techpoint_write_reg(client, 0x02, 0x44);
techpoint_write_reg(client, 0x0d, 0x72);
techpoint_write_reg(client, 0x15, 0x01);
techpoint_write_reg(client, 0x16, 0xf0);
techpoint_write_reg(client, 0x18, 0x2a);
techpoint_write_reg(client, 0x20, 0x38);
techpoint_write_reg(client, 0x21, 0x46);
techpoint_write_reg(client, 0x25, 0xfe);
techpoint_write_reg(client, 0x26, 0x0d);
techpoint_write_reg(client, 0x2c, 0x3a);
techpoint_write_reg(client, 0x2d, 0x54);
techpoint_write_reg(client, 0x2e, 0x40);
techpoint_write_reg(client, 0x30, 0xa5);
techpoint_write_reg(client, 0x31, 0x95);
techpoint_write_reg(client, 0x32, 0xe0);
techpoint_write_reg(client, 0x33, 0x60);
}
tp9951_set_mipi_out(client, reso, MIPI_2LANE); // 2 lane
break;
case TECHPOINT_S_RESO_PAL:
#if TP9951_DEF_PAL
default:
#endif
#if CVBS_960H
dev_err(&client->dev, "set channel CVBS_960H\n");
techpoint_write_reg(client, 0x02, 0x47);
techpoint_write_reg(client, 0x0c, 0x13);
techpoint_write_reg(client, 0x0d, 0x51);
techpoint_write_reg(client, 0x15, 0x13);
techpoint_write_reg(client, 0x16, 0x76);
techpoint_write_reg(client, 0x17, 0x80);
techpoint_write_reg(client, 0x18, 0x17);
techpoint_write_reg(client, 0x19, 0x20);
techpoint_write_reg(client, 0x1a, 0x17);
techpoint_write_reg(client, 0x1c, 0x09);
techpoint_write_reg(client, 0x1d, 0x48);
techpoint_write_reg(client, 0x20, 0x48);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x37);
techpoint_write_reg(client, 0x23, 0x3f);
techpoint_write_reg(client, 0x2b, 0x70);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x64);
techpoint_write_reg(client, 0x2e, 0x56);
techpoint_write_reg(client, 0x30, 0x7a);
techpoint_write_reg(client, 0x31, 0x4a);
techpoint_write_reg(client, 0x32, 0x4d);
techpoint_write_reg(client, 0x33, 0xf0);
techpoint_write_reg(client, 0x35, 0x65);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x04);
#else //PAL 720H
dev_err(&client->dev, "set channel PAL 720H\n");
techpoint_write_reg(client, 0x02, 0x47);
techpoint_write_reg(client, 0x06, 0x32);
techpoint_write_reg(client, 0x0c, 0x13);
techpoint_write_reg(client, 0x0d, 0x51);
techpoint_write_reg(client, 0x15, 0x03);
techpoint_write_reg(client, 0x16, 0xf0);
techpoint_write_reg(client, 0x17, 0xa0);
techpoint_write_reg(client, 0x18, 0x17);
techpoint_write_reg(client, 0x19, 0x20);
techpoint_write_reg(client, 0x1a, 0x15);
techpoint_write_reg(client, 0x1c, 0x06);
techpoint_write_reg(client, 0x1d, 0xc0);
techpoint_write_reg(client, 0x20, 0x48);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x37);
techpoint_write_reg(client, 0x23, 0x3f);
techpoint_write_reg(client, 0x2b, 0x70);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x4b);
techpoint_write_reg(client, 0x2e, 0x56);
techpoint_write_reg(client, 0x30, 0x7a);
techpoint_write_reg(client, 0x31, 0x4a);
techpoint_write_reg(client, 0x32, 0x4d);
techpoint_write_reg(client, 0x33, 0xfb);
techpoint_write_reg(client, 0x35, 0x65);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x04);
#endif
tp9951_set_mipi_out(client, reso, MIPI_2LANE); // 2 lane
break;
case TECHPOINT_S_RESO_NTSC:
#if TP9951_DEF_NTSC
default:
#endif
#if CVBS_960H
dev_err(&client->dev, "set channel NTSC CVBS_960H\n");
techpoint_write_reg(client, 0x02, 0x47);
techpoint_write_reg(client, 0x0c, 0x13);
techpoint_write_reg(client, 0x0d, 0x50);
techpoint_write_reg(client, 0x15, 0x13);
techpoint_write_reg(client, 0x16, 0x60);
techpoint_write_reg(client, 0x17, 0x80);
techpoint_write_reg(client, 0x18, 0x12);
techpoint_write_reg(client, 0x19, 0xf0);
techpoint_write_reg(client, 0x1a, 0x07);
techpoint_write_reg(client, 0x1c, 0x09);
techpoint_write_reg(client, 0x1d, 0x38);
techpoint_write_reg(client, 0x20, 0x40);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x36);
techpoint_write_reg(client, 0x23, 0x3c);
techpoint_write_reg(client, 0x2b, 0x70);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x68);
techpoint_write_reg(client, 0x2e, 0x57);
techpoint_write_reg(client, 0x30, 0x62);
techpoint_write_reg(client, 0x31, 0xbb);
techpoint_write_reg(client, 0x32, 0x96);
techpoint_write_reg(client, 0x33, 0xc0);
techpoint_write_reg(client, 0x35, 0x65);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x04);
#else
dev_err(&client->dev, "set channel NTSC 720H\n");
techpoint_write_reg(client, 0x02, 0x47);
techpoint_write_reg(client, 0x0c, 0x13);
techpoint_write_reg(client, 0x0d, 0x50);
techpoint_write_reg(client, 0x15, 0x03);
techpoint_write_reg(client, 0x16, 0xd6);
techpoint_write_reg(client, 0x17, 0xa0);
techpoint_write_reg(client, 0x18, 0x12);
techpoint_write_reg(client, 0x19, 0xf0);
techpoint_write_reg(client, 0x1a, 0x05);
techpoint_write_reg(client, 0x1c, 0x06);
techpoint_write_reg(client, 0x1d, 0xb4);
techpoint_write_reg(client, 0x20, 0x40);
techpoint_write_reg(client, 0x21, 0x84);
techpoint_write_reg(client, 0x22, 0x36);
techpoint_write_reg(client, 0x23, 0x3c);
techpoint_write_reg(client, 0x2b, 0x70);
techpoint_write_reg(client, 0x2c, 0x2a);
techpoint_write_reg(client, 0x2d, 0x4b);
techpoint_write_reg(client, 0x2e, 0x57);
techpoint_write_reg(client, 0x30, 0x62);
techpoint_write_reg(client, 0x31, 0xbb);
techpoint_write_reg(client, 0x32, 0x96);
techpoint_write_reg(client, 0x33, 0xcb);
techpoint_write_reg(client, 0x35, 0x65);
techpoint_write_reg(client, 0x38, 0x00);
techpoint_write_reg(client, 0x39, 0x04);
#endif
break;
}
#if TECHPOINT_TEST_PATTERN
techpoint_write_reg(client, 0x2a, 0x3c);
#endif
return 0;
}
// detect for reference only, the accuracy may be affected by the current invoked decoding standard.
int tp9951_get_channel_reso(struct i2c_client *client, int ch)
{
u8 detect_fmt = 0xff;
u8 reso = 0xff;
techpoint_write_reg(client, 0x40, ch);
techpoint_read_reg(client, 0x03, &detect_fmt);
reso = detect_fmt & 0x7; // CVSTD[2-0]
switch (reso) {
case TP9951_CVSTD_720P_25:
#if TP9951_DEF_720P
default:
#endif
dev_err(&client->dev, "detect channel %d 720P_25\n", ch);
return TECHPOINT_S_RESO_720P_25;
case TP9951_CVSTD_1080P_25:
#if TP9951_DEF_1080P
default:
#endif
dev_err(&client->dev, "detect channel %d 1080P_25\n", ch);
return TECHPOINT_S_RESO_1080P_25;
case TP9951_CVSTD_PAL:
#if TP9951_DEF_PAL
default:
#endif
dev_err(&client->dev, "detect channel %d PAL\n", ch);
return TECHPOINT_S_RESO_PAL;
case TP9951_CVSTD_NTSC:
#if TP9951_DEF_NTSC
default:
#endif
dev_err(&client->dev, "detect channel %d NTSC\n", ch);
return TECHPOINT_S_RESO_NTSC;
}
return reso;
}
int tp9951_set_quick_stream(struct i2c_client *client, u32 stream)
{
if (stream) {
techpoint_write_reg(client, PAGE_REG, 0x08);
techpoint_write_reg(client, 0x28, 0x00);
} else {
techpoint_write_reg(client, PAGE_REG, 0x08);
techpoint_write_reg(client, 0x28, 0x02);
usleep_range(40 * 1000, 50 * 1000);
}
return 0;
}