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Hardware I2C0/I2C1 for sccb communication

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This commit is contained in:
apiesse
2020-03-05 17:30:21 +01:00
parent f50b713d6c
commit a6e2ac208e
2 changed files with 21 additions and 3 deletions
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13
Kconfig
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@@ -21,13 +21,20 @@ config OV3660_SUPPORT
Enable this option if you want to use the OV3360. Enable this option if you want to use the OV3360.
Disable this option to safe memory. Disable this option to safe memory.
config SCCB_HARDWARE_I2C choice SCCB_HARDWARE_I2C
bool "Use hardware I2C1 for SCCB" bool "Use hardware I2C0/I2C1 for SCCB"
default y default SCCB_HARDWARE_I2C1
help help
Enable this option if you want to use hardware I2C to control the camera. Enable this option if you want to use hardware I2C to control the camera.
Disable this option to use software I2C. Disable this option to use software I2C.
config SCCB_HARDWARE_I2C0
bool "I2C0"
config SCCB_HARDWARE_I2C1
bool "I2C1"
endchoice
choice CAMERA_TASK_PINNED_TO_CORE choice CAMERA_TASK_PINNED_TO_CORE
bool "Camera task pinned to core" bool "Camera task pinned to core"
default CAMERA_CORE0 default CAMERA_CORE0

11
driver/sccb.c
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@@ -19,6 +19,13 @@
static const char* TAG = "sccb"; static const char* TAG = "sccb";
#endif #endif
#ifdef CONFIG_SCCB_HARDWARE_I2C0
#define CONFIG_SCCB_HARDWARE_I2C
#endif
#ifdef CONFIG_SCCB_HARDWARE_I2C1
#define CONFIG_SCCB_HARDWARE_I2C
#endif
#define LITTLETOBIG(x) ((x<<8)|(x>>8)) #define LITTLETOBIG(x) ((x<<8)|(x>>8))
#ifdef CONFIG_SCCB_HARDWARE_I2C #ifdef CONFIG_SCCB_HARDWARE_I2C
@@ -31,7 +38,11 @@ static const char* TAG = "sccb";
#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */ #define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */
#define ACK_VAL 0x0 /*!< I2C ack value */ #define ACK_VAL 0x0 /*!< I2C ack value */
#define NACK_VAL 0x1 /*!< I2C nack value */ #define NACK_VAL 0x1 /*!< I2C nack value */
#if CONFIG_SCCB_HARDWARE_I2C1
const int SCCB_I2C_PORT = 1; const int SCCB_I2C_PORT = 1;
#else
const int SCCB_I2C_PORT = 0;
#endif
static uint8_t ESP_SLAVE_ADDR = 0x3c; static uint8_t ESP_SLAVE_ADDR = 0x3c;
#else #else
#include "twi.h" #include "twi.h"