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SCCB configured externally

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This commit is contained in:
apiesse
2020-05-14 11:31:45 +02:00
parent 528c97a872
commit d109e5cc19
4 changed files with 24 additions and 23 deletions
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29
driver/sccb.c
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@@ -19,8 +19,6 @@
static const char* TAG = "sccb";
#endif
//#undef CONFIG_SCCB_HARDWARE_I2C
#define LITTLETOBIG(x) ((x<<8)|(x>>8))
#ifdef CONFIG_SCCB_HARDWARE_I2C
@@ -43,28 +41,29 @@ static uint8_t ESP_SLAVE_ADDR = 0x3c;
#include "twi.h"
#endif
int SCCB_Init(int pin_sda, int pin_scl)
int SCCB_Init(int pin_sda, int pin_scl, int external)
{
ESP_LOGI(TAG, "pin_sda %d pin_scl %d\n", pin_sda, pin_scl);
ESP_LOGI(TAG, "pin_sda %d pin_scl %d external %d \n", pin_sda, pin_scl, external);
#ifdef CONFIG_SCCB_HARDWARE_I2C
//log_i("SCCB_Init start");
i2c_config_t conf;
conf.mode = I2C_MODE_MASTER;
conf.sda_io_num = pin_sda;
conf.sda_pullup_en = GPIO_PULLUP_ENABLE;
conf.scl_io_num = pin_scl;
conf.scl_pullup_en = GPIO_PULLUP_ENABLE;
conf.master.clk_speed = SCCB_FREQ;
if (external == 0) {
i2c_config_t conf;
conf.mode = I2C_MODE_MASTER;
conf.sda_io_num = pin_sda;
conf.sda_pullup_en = GPIO_PULLUP_ENABLE;
conf.scl_io_num = pin_scl;
conf.scl_pullup_en = GPIO_PULLUP_ENABLE;
conf.master.clk_speed = SCCB_FREQ;
i2c_param_config(SCCB_I2C_PORT, &conf);
i2c_driver_install(SCCB_I2C_PORT, conf.mode, 0, 0, 0);
i2c_param_config(SCCB_I2C_PORT, &conf);
i2c_driver_install(SCCB_I2C_PORT, conf.mode, 0, 0, 0);
}
#else
twi_init(pin_sda, pin_scl);
#endif
return 0;
}
uint8_t SCCB_Probe()
uint8_t SCCB_Probe(void)
{
#ifdef CONFIG_SCCB_HARDWARE_I2C
uint8_t slave_addr = 0x0;