Merge pull request #129 from apiesse/feature/config_i2s_sccb

Hardware I2C0/I2C1 for sccb communication

Kconfig

@@ -22,12 +22,24 @@ config OV3660_SUPPORT
         Disable this option to safe memory.
     
 config SCCB_HARDWARE_I2C
-    bool "Use hardware I2C1 for SCCB"
+    bool "Use hardware I2C for SCCB"
     default y
     help
         Enable this option if you want to use hardware I2C to control the camera.
         Disable this option to use software I2C.
     
+choice SCCB_HARDWARE_I2C_PORT
+    bool "I2C peripheral to use for SCCB"
+    depends on SCCB_HARDWARE_I2C
+    default SCCB_HARDWARE_I2C_PORT1
+
+    config SCCB_HARDWARE_I2C_PORT0
+        bool "I2C0"
+    config SCCB_HARDWARE_I2C_PORT1
+        bool "I2C1"
+
+endchoice
+
 choice CAMERA_TASK_PINNED_TO_CORE
     bool "Camera task pinned to core"
     default CAMERA_CORE0

driver/sccb.c

@@ -31,7 +31,11 @@ static const char* TAG = "sccb";
 #define ACK_CHECK_DIS           0x0              /*!< I2C master will not check ack from slave */
 #define ACK_VAL                 0x0              /*!< I2C ack value */
 #define NACK_VAL                0x1              /*!< I2C nack value */
+#if CONFIG_SCCB_HARDWARE_I2C_PORT1
 const int SCCB_I2C_PORT         = 1;
+#else
+const int SCCB_I2C_PORT         = 0;
+#endif
 static uint8_t ESP_SLAVE_ADDR   = 0x3c;
 #else
 #include "twi.h"