cpu/stm_common: Refactor and cleanup i2c_1

Refactor to use common read_regs. Add error reporting and handling for unsupported low level commands. Document hardware constraints.
RIOT-OS · Dec 20, 2018 · aaf64ec · aaf64ec
1 parent 63e71cb
commit aaf64ec
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diff --git a/cpu/stm32_common/include/periph_cpu_common.h b/cpu/stm32_common/include/periph_cpu_common.h
@@ -159,11 +159,12 @@ typedef uint32_t gpio_t;
 #define PERIPH_I2C_NEED_READ_REG
 /** Use write reg function from periph common */
 #define PERIPH_I2C_NEED_WRITE_REG
+#define PERIPH_I2C_NEED_READ_REGS
 #if defined(CPU_FAM_STM32F1) || defined(CPU_FAM_STM32F2) || \
     defined(CPU_FAM_STM32L1) || defined(CPU_FAM_STM32F4)
-#define PERIPH_I2C_NEED_READ_REGS
 #define PERIPH_I2C_NEED_WRITE_REGS
 #endif
+
 /** @} */
 
 /**