Add ImageDesign sensors (MIS)

src/hal/common.h

@@ -60,6 +60,7 @@ enum SENSORS {
     SENSOR_GALAXYCORE,
     SENSOR_SUPERPIX,
     SENSOR_TECHPOINT,
+    SENSOR_IMAGEDESIGN,
 };
 
 typedef struct {

src/hal/hisi/hal_hisi.c

@@ -28,13 +28,15 @@ static unsigned char omni_addrs[] = {0x60, 0x6c, 0x42, 0};
 static unsigned char gc_addrs[] = {0x6e, 0x52, 0x42, 0x78, 0};
 static unsigned char superpix_addrs[] = {0x79, 0};
 static unsigned char tp_addrs[] = {0x88, 0};
+static unsigned char imagedesign_addrs[] = {0x60, 0};
+
 
 static sensor_addr_t my_possible_i2c_addrs[] = {
     {SENSOR_SONY, sony_addrs},         {SENSOR_SOI, soi_addrs},
     {SENSOR_ONSEMI, onsemi_addrs},     {SENSOR_SMARTSENS, ssens_addrs},
     {SENSOR_OMNIVISION, omni_addrs},   {SENSOR_GALAXYCORE, gc_addrs},
     {SENSOR_SUPERPIX, superpix_addrs}, {SENSOR_TECHPOINT, tp_addrs},
-    {0, NULL}};
+    {SENSOR_IMAGEDESIGN, imagedesign_addrs}, {0, NULL}};
 
 static float hisi_get_temp();
 

src/sensors.c

@@ -890,6 +890,35 @@ static int detect_techpoint_adc(sensor_ctx_t *ctx, int fd,
     return res;
 }
 
+static int detect_imagedesign_sensor(sensor_ctx_t *ctx, int fd,
+                                     unsigned char i2c_addr) {
+    if (i2c_change_addr(fd, i2c_addr) < 0)
+        return false;
+
+    int msb = i2c_read_register(fd, i2c_addr, 0x3000, 2, 1);
+    if (msb == -1)
+        return false;
+
+    int lsb = i2c_read_register(fd, i2c_addr, 0x3001, 2, 1);
+    if (lsb == -1)
+        return false;
+
+    int res = msb << 8 | lsb;
+    switch (res) {
+    case 0x2006:
+    case 0x2008: // XM states 0x2008 is MIS2009, not going to believe that yet
+        sprintf(ctx->sensor_id, "MIS%04x", res);
+        return true;
+    case 0x1311:
+        sprintf(ctx->sensor_id, "MIS4001");
+        return true;
+    default:
+        SENSOR_ERR("ImageDesign", res);
+        return false;
+    }
+    // MIS40C1 0xce4 @ 3107-3108 ?
+}
+
 static int detect_possible_sensors(sensor_ctx_t *ctx, int fd,
                                    int (*detect_fn)(sensor_ctx_t *ctx, int,
                                                     unsigned char),
@@ -958,6 +987,10 @@ static bool get_sensor_id_i2c(sensor_ctx_t *ctx) {
                                        SENSOR_TECHPOINT)) {
         strcpy(ctx->vendor, "TechPoint");
         detected = true;
+    } else if (detect_possible_sensors(ctx, fd, detect_imagedesign_sensor,
+                                       SENSOR_IMAGEDESIGN)) {
+        strcpy(ctx->vendor, "ImageDesign");
+        detected = true;
     }
 exit:
     close_sensor_fd(fd);