全志V853芯片适配双目GC2053的操作步骤
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1.主题
Tina V85x 平台适配双目GC2053的操作步骤
GC2053数据手册：ov-GC2053datas
2.问题背景
Tina V85x 平台支持多目sensor场景。Tina V85x SDK默认配置一般都是单目sensor，比如SDK V1.0默认是单目GC2053。为方便用户适配双目或多目sensor，下面以V853 perf1方案+双目GC2053为例，介绍适配的操作步骤。
3.解决办法
一、双目GC2053适配
适配双目GC2053主要修改以下几处：
1、dts设备树
文件：device/config/chips/v853/configs/perf1/board.dts
修改：
- （1）修改csi/isp频率
为节省带宽，可将csi/isp频率由原来默认的300MHz降至200MHz。
vind0:vind@0
- vind0_clk = <300000000>;
+ vind0_clk = <200000000>;
status = "okay";- （2）修改成离线模式
因双目场景下，ISP需分时复用，故只能支持离线模式，即work_mode改成1（离线）。具体可参考->
tdm0:tdm@0
- work_mode = <0>;
+ work_mode = <1>;
;
isp00:isp@0
- work_mode = <0>;
+ work_mode = <1>;
;
scaler00:scaler@0
- work_mode = <0>;
+ work_mode = <1>;
;
scaler10:scaler@4
- work_mode = <0>;
+ work_mode = <1>;
;
scaler20:scaler@8
- work_mode = <0>;
+ work_mode = <1>;
;
scaler30:scaler@12
- work_mode = <0>;
+ work_mode = <1>;
;- （3）修改sensor配置
sensor0默认是gc2053，无需修改。但是需要修改sensor1的配置为gc2053。修改后，sensor0和sensor1的配置如下：
sensor0:sensor@0
device_type = "sensor0";
sensor0_mname = "gc2053_mipi";
sensor0_twi_cci_id = <1>;
sensor0_twi_addr = <0x6e>;
sensor0_mclk_id = <0>;
sensor0_pos = "rear";
sensor0_isp_used = <1>;
sensor0_fmt = <1>;
sensor0_stby_mode = <0>;
sensor0_vflip = <0>;
sensor0_hflip = <0>;
sensor0_iovdd-supply = <®_aldo2>;
sensor0_iovdd_vol = <1800000>;
sensor0_avdd-supply = <®_bldo2>;
sensor0_avdd_vol = <2800000>;
sensor0_dvdd-supply = <®_dldo2>;
sensor0_dvdd_vol = <1200000>;
sensor0_power_en = <>;
sensor0_reset = <&pio PA 18 1 0 1 0>;
sensor0_pwdn = <&pio PA 19 1 0 1 0>;
sensor0_sm_hs = <>;
sensor0_sm_vs = <>;
flash_handle = <&flash0>;
act_handle = <&actuator0>;
status = "okay";
;
sensor1:sensor@1
device_type = "sensor1";
sensor1_mname = "gc2053_mipi_2";
sensor1_twi_cci_id = <0>;
sensor1_twi_addr = <0x6e>;
sensor1_mclk_id = <1>;
sensor1_pos = "front";
sensor1_isp_used = <1>;
sensor1_fmt = <1>;
sensor1_stby_mode = <0>;
sensor1_vflip = <0>;
sensor1_hflip = <0>;
sensor1_iovdd-supply = <®_aldo2>;
sensor1_iovdd_vol = <1800000>;
sensor1_avdd-supply = <®_bldo2>;
sensor1_avdd_vol = <2800000>;
sensor1_dvdd-supply = <®_dldo2>;
sensor1_dvdd_vol = <1200000>;
sensor1_power_en = <>;
sensor1_reset = <&pio PA 20 1 0 1 0>;
sensor1_pwdn = <&pio PA 21 1 0 1 0>;
sensor1_sm_hs = <>;
sensor1_sm_vs = <>;
flash_handle = <>;
act_handle = <>;
status = "okay";
;- （4）修改各video节点的配置
双目GC2053场景下，可支持的video节点分别为：sensor0：video 0/4/8/12sensor1：video 1/5/9/13
故只需修改以上8个video节点的配置即可。修改后的配置如下：
vinc00:vinc@0
vinc0_csi_sel = <0>;
vinc0_mipi_sel = <0>;
vinc0_isp_sel = <0>;
vinc0_isp_tx_ch = <0>;
vinc0_tdm_rx_sel = <0>;
vinc0_rear_sensor_sel = <0>;
vinc0_front_sensor_sel = <0>;
vinc0_sensor_list = <0>;
work_mode = <0x1>;
status = "okay";
;
vinc01:vinc@1
vinc1_csi_sel = <1>;
vinc1_mipi_sel = <1>;
vinc1_isp_sel = <1>;
vinc1_isp_tx_ch = <0>;
vinc1_tdm_rx_sel = <1>;
vinc1_rear_sensor_sel = <1>;
vinc1_front_sensor_sel = <1>;
vinc1_sensor_list = <0>;
status = "okay";
;
vinc10:vinc@4
vinc4_csi_sel = <0>;
vinc4_mipi_sel = <0>;
vinc4_isp_sel = <0>;
vinc4_isp_tx_ch = <0>;
vinc4_tdm_rx_sel = <0>;
vinc4_rear_sensor_sel = <0>;
vinc4_front_sensor_sel = <0>;
vinc4_sensor_list = <0>;
work_mode = <0x1>;
status = "okay";
;
vinc11:vinc@5
vinc5_csi_sel = <1>;
vinc5_mipi_sel = <1>;
vinc5_isp_sel = <1>;
vinc5_isp_tx_ch = <0>;
vinc5_tdm_rx_sel = <1>;
vinc5_rear_sensor_sel = <1>;
vinc5_front_sensor_sel = <1>;
vinc5_sensor_list = <0>;
status = "okay";
;
vinc20:vinc@8
vinc8_csi_sel = <0>;
vinc8_mipi_sel = <0x0>;
vinc8_isp_sel = <0>;
vinc8_isp_tx_ch = <0>;
vinc8_tdm_rx_sel = <0>;
vinc8_rear_sensor_sel = <0>;
vinc8_front_sensor_sel = <0>;
vinc8_sensor_list = <0>;
work_mode = <0x1>;
status = "okay";
;
vinc21:vinc@9
vinc9_csi_sel = <0>;
vinc9_mipi_sel = <0x0>;
vinc9_isp_sel = <0>;
vinc9_isp_tx_ch = <0>;
vinc9_tdm_rx_sel = <0>;
vinc9_rear_sensor_sel = <0>;
vinc9_front_sensor_sel = <0>;
vinc9_sensor_list = <0>;
work_mode = <0x1>;
status = "okay";
;
vinc30:vinc@12
vinc12_csi_sel = <0>;
vinc12_mipi_sel = <0x0>;
vinc12_isp_sel = <0>;
vinc12_isp_tx_ch = <0>;
vinc12_tdm_rx_sel = <0>;
vinc12_rear_sensor_sel = <0>;
vinc12_front_sensor_sel = <0>;
vinc12_sensor_list = <0>;
work_mode = <0x1>;
status = "okay";
;
vinc31:vinc@13
vinc13_csi_sel = <1>;
vinc13_mipi_sel = <1>;
vinc13_isp_sel = <1>;
vinc13_isp_tx_ch = <0>;
vinc13_tdm_rx_sel = <1>;
vinc13_rear_sensor_sel = <1>;
vinc13_front_sensor_sel = <1>;
vinc13_sensor_list = <0>;
status = "okay";
;2、内核配置
双mipi sensor场景下，ISP分时复用，需要使用TDM，故需打开TDM。
文件：device/config/chips/v853/configs/perf1/linux/config-4.9
修改：打开TDM配置
CONFIG_SUPPORT_ISP_TDM=y
CONFIG_TDM_LBC_EN=y3、mpp middleware
首先，确保mpp配置中选中了gc2053 sensor。检查方法：
make menuconfig，依次进入配置项：
Allwinner --->
eyesee-mpp --->
[*] select sensor
[*] use sensor gc2053然后，在ISP效果文件中，为第二个sensor添加效果文件配置。
位置：external/eyesee-mpp/middleware/sun8iw21/media/LIBRARY/libisp/isp_cfg/isp_ini_parse.c
修改：将原来的两组gc2053_mipi配置分别拷贝一份，然后修改名字为gc2053_mipi_2即可，其他参数不用修改。
struct isp_cfg_array cfg_arr[] =
...
#ifdef SENSOR_GC2053
"gc2053_mipi", "gc2053_mipi_isp600_20220511_164617_vlc4_day", 1920, 1088, 20, 0, 0, &gc2053_mipi_v853_isp_cfg,
"gc2053_mipi", "gc2053_mipi_isp600_20220415_144837_ir", 1920, 1088, 20, 0, 1, &gc2053_mipi_ir_isp_cfg,
"gc2053_mipi_2", "gc2053_mipi_isp600_20220511_164617_vlc4_day", 1920, 1088, 20, 0, 0, &gc2053_mipi_v853_isp_cfg,
"gc2053_mipi_2", "gc2053_mipi_isp600_20220415_144837_ir", 1920, 1088, 20, 0, 1, &gc2053_mipi_ir_isp_cfg,
#endif
...
按以上步骤修改完成后，需重新编译mpp和固件，命令如下：
cleanmpp && mkmpp && mp二、双目GC2053验证
支持验证双目GC2053的mpp sample有：
sample_rtsp（支持双目采集+编码+RTSP）、sample_smartIPC_demo（支持双目采集+编码+RTSP+人形检测）、sample_smartPreview_demo（支持双目采集+预览）
如果不需要RTSP功能，注释掉代码中的宏 #define SUPPORT_RTSP_TEST 即可。
有关mpp sample的使用方法，请参考https://bbs.aw-ol.com/topic/1906/
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