[2/4]解决USB摄像头打开相机预览界面绿屏

liyujie

2025-08-28 d9927380ed7c8366f762049be9f3fee225860833

 android/hardware/aw/camera/3_4/allwinnertech/libAWIspApi/libisp_new/isp.c
..
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@@ -54,6 +54,8 @@
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 #define MEDIA_DEVICE		"/dev/media0"
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+unsigned int isp_lib_log_param = 0;
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+
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 struct hw_isp_media_dev media_params;
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 struct isp_lib_context isp_ctx[HW_ISP_DEVICE_NUM] = {
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 	[0] = {
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@@ -414,6 +416,13 @@
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 	struct isp_lib_context *isp_gen = isp_dev_get_ctx(isp);
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 	HW_S32 iso_qmenu[] = { 100, 200, 400, 800, 1600, 3200, 6400};
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 	HW_S32 exp_bias_qmenu[] = { -4, -3, -2, -1, 0, 1, 2, 3, 4, };
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+
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+#if (ISP_VERSION == 522)
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+    if (isp->id && isp_gen->sensor_info.sensor_width > 4000 &&
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+            isp_gen->sensor_info.sensor_height > 3000) {
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+        isp_gen = &isp_ctx[0];
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+    }
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+#endif
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 	if (isp_gen == NULL)
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 		return;
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@@ -1120,8 +1129,7 @@
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   *i3a_length =
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   	  sizeof(ae_result_t) + sizeof(ae_param_t)+ sizeof(struct isp_ae_stats_s) // ae info
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   	+ sizeof(awb_result_t)+ sizeof(awb_param_t)+ sizeof(struct isp_awb_stats_s) // awb info
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-  	+ sizeof(af_result_t)+ sizeof(af_param_t)+ sizeof(struct isp_af_stats_s) // af info
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-  ;
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+  	+ sizeof(af_result_t)+ sizeof(af_param_t)+ sizeof(struct isp_af_stats_s); // af info
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   *debug_length =
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   	sizeof(iso_result_t)
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@@ -1131,11 +1139,12 @@
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   	+16*16*3*sizeof(unsigned short)	// msc tbl
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   	+4*2*sizeof(unsigned short);	// wb otp data
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+    data_len = *i3a_length + *debug_length;
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 	ISP_PRINT("i3a_length:%d, debug_length:%d.\n", *i3a_length, *debug_length);
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 	ISP_PRINT("af_result_t:%d, af_param_t:%d, isp_af_stats_s:%d.\n", sizeof(ae_result_t), sizeof(ae_param_t), sizeof(struct isp_ae_stats_s));
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  	ISP_PRINT("af_result_t:%d, af_param_t:%d, isp_af_stats_s:%d.\n", sizeof(awb_result_t), sizeof(awb_param_t), sizeof(struct isp_awb_stats_s));
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 	ISP_PRINT("af_result_t:%d, af_param_t:%d, isp_af_stats_s:%d.\n", sizeof(af_result_t), sizeof(af_param_t), sizeof(struct isp_af_stats_s));
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-    return 0;
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+    return  data_len;
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 }
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@@ -1157,6 +1166,7 @@
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         return -1;
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     void * ptr = params;
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+    int isp_3a_size = 0;
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 	// ae info
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     memcpy(ptr, &(isp_gen->ae_entity_ctx.ae_result), sizeof(ae_result_t));
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     ptr += sizeof(ae_result_t);
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@@ -1187,8 +1197,14 @@
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 	memcpy(ptr, isp_gen->af_entity_ctx.af_stats.af_stats, sizeof(struct isp_af_stats_s));
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 	ptr += sizeof(struct isp_af_stats_s);
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+    isp_3a_size = sizeof(ae_result_t) + sizeof(ae_param_t) +
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+        sizeof(struct isp_ae_stats_s) + sizeof(awb_result_t) +
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+        sizeof(awb_param_t) + sizeof(struct isp_awb_stats_s) +
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+        sizeof(af_result_t) + sizeof(af_param_t) +
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+        sizeof(struct isp_af_stats_s);
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+
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     ptr = NULL;
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-    return 0;
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+    return isp_3a_size;
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 }
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 HW_S32 isp_get_debug_msg(int dev_id, void* msg)
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@@ -1207,6 +1223,7 @@
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         return -1;
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     void * ptr = msg;
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+    int isp_debug_msg_size = 0;
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     memcpy(ptr, &(isp_gen->iso_entity_ctx.iso_result), sizeof(iso_result_t));
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     ptr += sizeof(iso_result_t);
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@@ -1227,8 +1244,15 @@
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 	memcpy(ptr, isp_gen->pwb_table, 4*2*sizeof(unsigned short));
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 	ptr += 4*2*sizeof(unsigned short);
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+    isp_debug_msg_size = sizeof(iso_result_t) +
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+        sizeof(iso_param_t) +
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+        sizeof(struct isp_module_config) +
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+        sizeof(int) +
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+        16*16*3*sizeof(unsigned short) +
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+        4*2*sizeof(unsigned short);
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+
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     ptr = NULL;
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-    return 0;
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+    return isp_debug_msg_size;
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 }
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 /*******************get isp version*********************/