fix: add SC031GS VGA framesize support (espressif#581)

Author: WangYuxin-esp

sensors/private_include/sc031gs_settings.h

@@ -78,10 +78,13 @@ struct sc031gs_regval {
 	uint8_t val;
 };
 
-// 200*200, xclk=10M, fps=120fps
-static const struct sc031gs_regval sc031gs_default_init_regs[] = {
-    {0x0103, 0x01}, // soft reset.
+static const struct sc031gs_regval sc031gs_reset_regs[] = {
+	{0x0103, 0x01}, // soft reset.
 	{REG_DELAY, 10}, // delay.
+};
+
+// 200*200, xclk=10M, fps=120fps
+static const struct sc031gs_regval sc031gs_200x200_init_regs[] = {
 	{0x0100, 0x00},
 	{0x36e9, 0x80},
 	{0x36f9, 0x80},
@@ -200,3 +203,114 @@ static const struct sc031gs_regval sc031gs_default_init_regs[] = {
 	{0x3317, 0x0e},
 	{REG_NULL, 0x00},
 };
+
+// 640*480, xclk=20M, fps=50fps, xclk=10M, fps=25fps
+static const struct sc031gs_regval sc031gs_640x480_50fps_init_regs[] = {
+	{0x0100, 0x00},
+	{0x36e9, 0x80},
+	{0x36f9, 0x80},
+	{0x300f, 0x0f},
+	{0x3018, 0x1f},
+	{0x3019, 0xff},
+	{0x301c, 0xb4},
+	{0x301f, 0x6c},
+	{0x3028, 0x82},
+	{0x3200, 0x00},
+	{0x3201, 0x00},
+	{0x3202, 0x00},
+	{0x3203, 0x08},
+	{0x3204, 0x02},
+	{0x3205, 0x8f},
+	{0x3206, 0x01},
+	{0x3207, 0xf7},
+	{SC031GS_OUTPUT_WINDOW_WIDTH_H_REG, 0x02},
+	{SC031GS_OUTPUT_WINDOW_WIDTH_L_REG, 0x80},
+	{SC031GS_OUTPUT_WINDOW_HIGH_H_REG, 0x01},
+	{SC031GS_OUTPUT_WINDOW_HIGH_L_REG, 0xe0},
+	{0x320c, 0x03},
+	{0x320d, 0x6e},
+	{0x320e, 0x04},
+	{0x320f, 0x72},
+	{SC031GS_OUTPUT_WINDOW_START_Y_H_REG, 0x00},
+	{SC031GS_OUTPUT_WINDOW_START_Y_L_REG, 0x08},
+	{SC031GS_OUTPUT_WINDOW_START_X_H_REG, 0x00},
+	{SC031GS_OUTPUT_WINDOW_START_X_L_REG, 0x08},
+	{0x3220, 0x10},
+	{0x3223, 0x50},
+	{0x3250, 0xf0},
+	{0x3251, 0x02},
+	{0x3252, 0x03},
+	{0x3253, 0xb0},
+	{0x3254, 0x02},
+	{0x3255, 0x07},
+	{0x3304, 0x48},
+	{0x3306, 0x38},
+	{0x3309, 0x68},
+	{0x330b, 0xe0},
+	{0x330c, 0x18},
+	{0x330f, 0x20},
+	{0x3310, 0x10},
+	{0x3314, 0x6d},
+	{0x3315, 0x38},
+	{0x3316, 0x68},
+	{0x3317, 0x0f},
+	{0x3329, 0x5c},
+	{0x332d, 0x5c},
+	{0x332f, 0x60},
+	{0x3335, 0x64},
+	{0x3344, 0x64},
+	{0x335b, 0x80},
+	{0x335f, 0x80},
+	{0x3366, 0x06},
+	{0x3385, 0x31},
+	{0x3387, 0x51},
+	{0x3389, 0x01},
+	{0x33b1, 0x03},
+	{0x33b2, 0x06},
+	{0x3621, 0xa4},
+	{0x3622, 0x05},
+	{0x3624, 0x47},
+	{0x3631, 0x48},
+	{0x3633, 0x52},
+	{0x3635, 0x18},
+	{0x3636, 0x25},
+	{0x3637, 0x89},
+	{0x3638, 0x0f},
+	{0x3639, 0x08},
+	{0x363a, 0x00},
+	{0x363b, 0x48},
+	{0x363c, 0x06},
+	{0x363e, 0xf8},
+	{0x3640, 0x00},
+	{0x3641, 0x01},
+	{0x36ea, 0x36},
+	{0x36eb, 0x1a},
+	{0x36ec, 0x0a},
+	{0x36ed, 0x23},
+	{0x36fa, 0x36},
+	{0x36fb, 0x10},
+	{0x36fc, 0x01},
+	{0x36fd, 0x03},
+	{0x3908, 0x91},
+	{0x3d08, 0x01},
+	{0x3e01, 0x14},
+	{0x3e02, 0x80},
+	{0x3e06, 0x0c},
+	{0x3f04, 0x03},
+	{0x3f05, 0x4e},
+	{0x4500, 0x59},
+	{0x4501, 0xc4},
+	{0x4809, 0x01},
+	{0x4837, 0x1b},
+	{0x5011, 0x00},
+	{0x36e9, 0x20},
+	{0x36f9, 0x24},
+	{0x0100, 0x01}, // must write 0x0100 with 0x01, must delay no less then 7ms
+	//delay 10ms
+	{REG_DELAY, 0X0a},
+	{0x4418, 0x08},
+	{0x4419, 0x80},
+	{0x363d, 0x10},
+	{0x3630, 0x48},
+	{REG_NULL, 0x00},
+};

sensors/sc031gs.c

@@ -204,7 +204,7 @@ static int set_aec_value(sensor_t *sensor, int value)
 
 static int reset(sensor_t *sensor)
 {
-    int ret = write_regs(sensor->slv_addr, sc031gs_default_init_regs);
+    int ret = write_regs(sensor->slv_addr, sc031gs_reset_regs);
     if (ret) {
         ESP_LOGE(TAG, "reset fail");
     }
@@ -217,17 +217,11 @@ static int set_output_window(sensor_t *sensor, int offset_x, int offset_y, int w
 {
     int ret = 0;
     //sc:H_start={0x3212[1:0],0x3213},H_length={0x3208[1:0],0x3209},
-    // printf("%d, %d, %d, %d\r\n", ((offset_x>>8) & 0x03), offset_x & 0xff, ((w>>8) & 0x03), w & 0xff);
 
-    WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_START_X_H_REG, 0x0); // For now, we use x_start is 0x04
-    WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_START_X_L_REG, 0x04);
     WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_WIDTH_H_REG, ((w>>8) & 0x03));
     WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_WIDTH_L_REG, w & 0xff);
 
     //sc:V_start={0x3210[1:0],0x3211},V_length={0x320a[1:0],0x320b},
-    // printf("%d, %d, %d, %d\r\n", ((offset_y>>8) & 0x03), offset_y & 0xff, ((h>>8) & 0x03), h & 0xff);
-    WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_START_Y_H_REG, 0x0); // For now, we use y_start is 0x08
-    WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_START_Y_L_REG, 0x08);
     WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_HIGH_H_REG, ((h>>8) & 0x03));
     WRITE_REG_OR_RETURN(SC031GS_OUTPUT_WINDOW_HIGH_L_REG, h & 0xff);
 
@@ -240,17 +234,21 @@ static int set_framesize(sensor_t *sensor, framesize_t framesize)
 {
     uint16_t w = resolution[framesize].width;
     uint16_t h = resolution[framesize].height;
-    if(w > SC031GS_MAX_FRAME_WIDTH || h > SC031GS_MAX_FRAME_HIGH) {
-        goto err; 
-    }
 
-    if(w != 200 || h != 200) {
-        ESP_LOGE(TAG, "Only support 200*200 for now, contact us if you want to use other resolutions");
+    struct sc031gs_regval const *framesize_regs = sc031gs_200x200_init_regs;
+    if(framesize > FRAMESIZE_VGA) {
         goto err; 
+    } else if(framesize > FRAMESIZE_QVGA) {
+        framesize_regs = sc031gs_640x480_50fps_init_regs;
     }
 
     uint16_t offset_x = (640-w) /2 + 4;   
     uint16_t offset_y = (480-h) /2 + 4;
+
+    int ret = write_regs(sensor->slv_addr, framesize_regs);
+    if (ret) {
+        ESP_LOGE(TAG, "reset fail");
+    }
 
     if(set_output_window(sensor, offset_x, offset_y, w, h)) {
         goto err;