海思Hi3516A（3）图像sensor驱动开发-阿里云开发者社区

1. 设备驱动加载及系统配置

关于sensor的开发环境、MPP的工作原理、ISP简介等可参考shugenyin的博客——海思Hi3518EV200。

cd ko

./load3516a -a -sensor sc3035 -osmem 64

在load脚本中添加sensor的相关配置，这里使用smartsens的SC3035-M的360万像素CMOS sensor。

insert_sns()
{

    case $SNS_TYPE in

        sc3035)

            himm 0x200f0050 0x2;                # i2c0_scl

            himm 0x200f0054 0x2;                # i2c0_sda
 
            himm 0x2003002c 0xB0007             # sensolsr unreset, clk 27MHz, VI 250MHz

            ;;

        *)

            echo "xxxx Invalid sensor type $SNS_TYPE xxxx"

            report_error

            ;;

    esac
}

2. sensor的库文件生成(.so)

sensor的库文件需要在Linux服务器中的SDK包中编译得到，将生成的.so文件放到SDK包中的stream软件包中的Hi3516A_Stream_xxx/libs目录下。

sc3035_sensor_ctl.c实现sensor的初始化。

void sensor_init()
{

   sensor_i2c_init();

   sensor_init_3M_1536p_4lan();     
}
 
void sensor_init_3M_1536p_4lan()
{

    sensor_write_register(0x0100,0x00);

    sensor_write_register(0x4500,0x31);// rnc sel

    sensor_write_register(0x3416,0x11);

    sensor_write_register(0x4501,0xa4);// bit ctrl 

    sensor_write_register(0x3e03,0x03);// aec

    sensor_write_register(0x3e08,0x00);

    sensor_write_register(0x3e09,0x10);

    sensor_write_register(0x3e01,0x30);

    sensor_write_register(0x322e,0x00);

    sensor_write_register(0x322f,0xaf);

    sensor_write_register(0x3306,0x56);

    sensor_write_register(0x3307,0x17);

    sensor_write_register(0x330b,0x54);

    sensor_write_register(0x3303,0x20);

    sensor_write_register(0x3309,0x20);

    sensor_write_register(0x3308,0x08);

    sensor_write_register(0x331e,0x16);

    sensor_write_register(0x331f,0x16);

    sensor_write_register(0x3320,0x18);

    sensor_write_register(0x3321,0x18);

    sensor_write_register(0x3322,0x18);

    sensor_write_register(0x3323,0x18);

    sensor_write_register(0x330c,0x0b);

    sensor_write_register(0x330f,0x07);

    sensor_write_register(0x3310,0x42);

    sensor_write_register(0x3324,0x07);

    sensor_write_register(0x3325,0x07);

    sensor_write_register(0x335b,0xca);

    sensor_write_register(0x335e,0x07);

    sensor_write_register(0x335f,0x10);

    sensor_write_register(0x3334,0x00);

    sensor_write_register(0x3F01,0x04);

    sensor_write_register(0x3F04,0x01);

    sensor_write_register(0x3F05,0x30);

    sensor_write_register(0x3626,0x01);

    sensor_write_register(0x3635,0x60);

    sensor_write_register(0x3631,0x84);

    sensor_write_register(0x3636,0x88);

    sensor_write_register(0x3633,0x3f);

    sensor_write_register(0x3639,0x80);

    sensor_write_register(0x3622,0x12);

    sensor_write_register(0x3627,0x02);

    sensor_write_register(0x3038,0xa4);

    sensor_write_register(0x3621,0x18);

    sensor_write_register(0x363a,0x1c);

    sensor_write_register(0x3637,0xbe);

    sensor_write_register(0x3638,0x85);

    sensor_write_register(0x363c,0x48);// ramp cur

    sensor_write_register(0x5780,0xff);// dpc

    sensor_write_register(0x5781,0x04);

    sensor_write_register(0x5785,0x10);

    sensor_write_register(0x301e,0xe0);// [4] 0:close tempsens

    sensor_write_register(0x3662,0x82);

    sensor_write_register(0x3d0d,0x00);// close random code

    sensor_write_register(0x3039,0x20);

    sensor_write_register(0x303a,0x38);//74.25M pclk

    sensor_write_register(0x303b,0x00);

    sensor_write_register(0x3306,0x56);

    sensor_write_register(0x330b,0xc0);

    sensor_write_register(0x3038,0xf8);//pump clk div

    sensor_write_register(0x320c,0x04); //hts=2500

    sensor_write_register(0x320d,0xe2); 

    sensor_write_register(0x320e,0x06); //vts=1584

    sensor_write_register(0x320f,0x30);

    sensor_write_register(0x3202,0x00);// ystart=48

    sensor_write_register(0x3203,0x00);

    sensor_write_register(0x3206,0x06);// yend=1545   1545 rows selected

    sensor_write_register(0x3207,0x08);

    sensor_write_register(0x3200,0x00);// xstart= 136

    sensor_write_register(0x3201,0x88);

    sensor_write_register(0x3204,0x09);// xend = 2447  2312 cols selected

    sensor_write_register(0x3205,0x8f);

    sensor_write_register(0x3211,0x04); // xstart

    sensor_write_register(0x3213,0x04); // ystart 

    sensor_write_register(0x3208,0x09); //2304x1536

    sensor_write_register(0x3209,0x00);

    sensor_write_register(0x320a,0x06);

    sensor_write_register(0x320b,0x00);

    sensor_write_register(0x3312,0x06);// sa1 timing

    sensor_write_register(0x3340,0x04);

    sensor_write_register(0x3341,0xd2);

    sensor_write_register(0x3342,0x01);

    sensor_write_register(0x3343,0xb0);

    sensor_write_register(0x335d,0x2a);// cmp timing

    sensor_write_register(0x3348,0x04);

    sensor_write_register(0x3349,0xd2);

    sensor_write_register(0x334a,0x01);

    sensor_write_register(0x334b,0xb0);

    sensor_write_register(0x3368,0x03);// auto precharge

    sensor_write_register(0x3369,0x30);

    sensor_write_register(0x336a,0x06);

    sensor_write_register(0x336b,0x30);

    sensor_write_register(0x3367,0x05);

    sensor_write_register(0x330e,0x17);

    sensor_write_register(0x3d08,0x00);// pclk inv

    sensor_write_register(0x303f,0x82);

    sensor_write_register(0x3c03,0x10);//fifo sram read position

    sensor_write_register(0x3c00,0x45);// Dig SRAM reset

    sensor_write_register(0x3630,0x83);//0xb9

    sensor_write_register(0x3635,0x60);//0x66

    sensor_write_register(0x3620,0x62);//0x82

    sensor_write_register(0x3c00,0x00);//[2]: 0  mipi->fifo

    sensor_write_register(0x303f,0x02);//[7]: 0  sel pll_pclk

    sensor_write_register(0x3031,0x0a);//[3:0] 10bit

    sensor_write_register(0x3018,0x73);//[7:5]  sel lane=reg+1

    sensor_write_register(0x3030,0x14);

    sensor_write_register(0x3039,0x21);

    sensor_write_register(0x303a,0x0F);

    sensor_write_register(0x303b,0x06);

    sensor_write_register(0x303c,0x38);

    sensor_write_register(0x3650,0x46);

    sensor_write_register(0x0100,0x01);

    printf("SC3035 sensor 3M-1536p 30fps init success!\n");
}

sc3035_cmos.c主要实现ISP需要的回调函数，传递参数，包括ISP、AE、AWB等。

//ISP function
HI_S32 cmos_init_sensor_exp_function(ISP_SENSOR_EXP_FUNC_S *pstSensorExpFunc)
{

    memset(pstSensorExpFunc, 0, sizeof(ISP_SENSOR_EXP_FUNC_S));

    pstSensorExpFunc->pfn_cmos_sensor_init = sensor_init;

    pstSensorExpFunc->pfn_cmos_sensor_exit = sensor_exit;

    pstSensorExpFunc->pfn_cmos_sensor_global_init = sensor_global_init;

    pstSensorExpFunc->pfn_cmos_set_image_mode = cmos_set_image_mode;

    pstSensorExpFunc->pfn_cmos_set_wdr_mode = cmos_set_wdr_mode;

    pstSensorExpFunc->pfn_cmos_get_isp_default = cmos_get_isp_default;

    pstSensorExpFunc->pfn_cmos_get_isp_black_level = cmos_get_isp_black_level;

    pstSensorExpFunc->pfn_cmos_set_pixel_detect = cmos_set_pixel_detect;

    pstSensorExpFunc->pfn_cmos_get_sns_reg_info = cmos_get_sns_regs_info;

    return 0;
}

//AE function
HI_S32 cmos_init_ae_exp_function(AE_SENSOR_EXP_FUNC_S *pstExpFuncs)
{

    memset(pstExpFuncs, 0, sizeof(AE_SENSOR_EXP_FUNC_S));

    pstExpFuncs->pfn_cmos_get_ae_default    = cmos_get_ae_default;

    pstExpFuncs->pfn_cmos_fps_set           = cmos_fps_set;

    pstExpFuncs->pfn_cmos_slow_framerate_set= cmos_slow_framerate_set;    

    pstExpFuncs->pfn_cmos_inttime_update    = cmos_inttime_update;

    pstExpFuncs->pfn_cmos_gains_update      = cmos_gains_update;

    pstExpFuncs->pfn_cmos_again_calc_table  = cmos_again_calc_table;

    pstExpFuncs->pfn_cmos_get_inttime_max   = cmos_get_inttime_max; 

    return 0;
}

//AWB function
HI_S32 cmos_init_awb_exp_function(AWB_SENSOR_EXP_FUNC_S *pstExpFuncs)
{

    memset(pstExpFuncs, 0, sizeof(AWB_SENSOR_EXP_FUNC_S));

    pstExpFuncs->pfn_cmos_get_awb_default = cmos_get_awb_default;

    return 0;
}

3. 修改stream软件包的.ini文件

sc3035_3m_4lan.ini文件在Hi3516A_Stream_xxx/configs目录下，改文件主要指定.so文件的位置、输入视频的接口(LVDS/MIPI/DVP)、视频格式（分辨率、同步方式、目标帧率等）等系统配置。

[sensor]
Sensor_type   =sc3035                   ;sensor name
Mode          =0                        ;WDR_MODE_NONE = 0

                                        ;WDR_MODE_BUILT_IN = 1

                                        ;WDR_MODE_2To1_LINE = 2

                                        ;WDR_MODE_2To1_FRAME = 3

                                        ;WDR_MODE_2To1_FRAME_FULL_RATE =4 ...etc

DllFile   =libs/libsns_sc3035_4lan.so        ;sensor lib path
 
[mode]                               
input_mode =0                           ;INPUT_MODE_MIPI = 0

                                        ;INPUT_MODE_SUBLVDS = 1

                                        ;INPUT_MODE_LVDS = 2 ...etc
 
dev_attr = 0                             ;mipi_dev_attr_t = 0

                                        ;lvds_dev_attr_t = 1

                                        ;NULL =2
 
[mipi]    

;----------only for mipi_dev---------               

data_type = 1                         ;raw data type: 8/10/12/14 bit

                                        ;RAW_DATA_8BIT = 0

                                        ;RAW_DATA_10BIT = 1

                                        ;RAW_DATA_12BIT = 2 

                                        ;RAW_DATA_14BIT = 3 
lane_id = 0| 1 | 2 | 3 |-1|-1|-1|-1|        ;lane_id: -1 - disable
 
[isp_image]
Isp_x      =0
Isp_y      =0
Isp_W      =2304
Isp_H      =1536
Isp_FrameRate=30
Isp_Bayer  =3   ;BAYER_RGGB=0, BAYER_GRBG=1, BAYER_GBRG=2, BAYER_BGGR=3

4. 运行stream软件

运行stream软件包中的HiIspTool.sh脚本，通过以太网卡与上位机的PQTools建立通信。

cd Hi3516A_Stream_V1.0.5.0

./HiIspTools.sh -a -p sc3035_3m_4lan.ini

ittb_control进程是基于TCP的服务端，负责控制信号的传输。

ittb_stream进程也是基于TCP的服务端，负责播放H.265或YUV视频流。

5. 运行PQ Tools

双击PQ Tools图片，弹出如下对话框，设置IP地址。

在下拉菜单中选择TTP_Stream.exe选项

6. 最终结果

上位机显示视频结果，图像分辨率为2304*1536，帧率为30。

本文转自 shugenyin 51CTO博客，原文链接:http://blog.51cto.com/shugenyin/1856959