| /* |
| * Copyright (c) 2023 STMicrelectronics |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| #ifndef ZEPHYR_INCLUDE_DT_BINDINGS_STM32_ADC_H_ |
| #define ZEPHYR_INCLUDE_DT_BINDINGS_STM32_ADC_H_ |
| |
| #include <zephyr/dt-bindings/adc/adc.h> |
| |
| #define STM32_ADC_REG_MASK BIT_MASK(8) |
| #define STM32_ADC_REG_SHIFT 0U |
| #define STM32_ADC_SHIFT_MASK BIT_MASK(5) |
| #define STM32_ADC_SHIFT_SHIFT 8U |
| #define STM32_ADC_MASK_MASK BIT_MASK(3) |
| #define STM32_ADC_MASK_SHIFT 13U |
| #define STM32_ADC_REG_VAL_MASK BIT_MASK(3) |
| #define STM32_ADC_REG_VAL_SHIFT 16U |
| #define STM32_ADC_REAL_VAL_MASK BIT_MASK(13) |
| #define STM32_ADC_REAL_VAL_SHIFT 19U |
| |
| /** |
| * @brief STM32 ADC configuration bit field. |
| * |
| * - reg (0..0xFF) [ 0 : 7 ] |
| * - shift (0..31) [ 8 : 12 ] |
| * - mask (0x1, 0x3, 0x7) [ 13 : 15 ] |
| * - reg_val (0..7) [ 16 : 18 ] |
| * - real_val (0..8191) [ 19 : 31 ] |
| * |
| * @param reg ADC_x register offset |
| * @param shift Position within ADC_x. |
| * @param mask Mask for the ADC_x field. |
| * @param reg_val Register value (0, 1, ... 7). |
| * @param real_val Real corresponding value (0, 1, ... 8191). |
| */ |
| #define STM32_ADC(real_val, reg_val, mask, shift, reg) \ |
| ((((reg) & STM32_ADC_REG_MASK) << STM32_ADC_REG_SHIFT) | \ |
| (((shift) & STM32_ADC_SHIFT_MASK) << STM32_ADC_SHIFT_SHIFT) | \ |
| (((mask) & STM32_ADC_MASK_MASK) << STM32_ADC_MASK_SHIFT) | \ |
| (((reg_val) & STM32_ADC_REG_VAL_MASK) << STM32_ADC_REG_VAL_SHIFT) | \ |
| (((real_val) & STM32_ADC_REAL_VAL_MASK) << STM32_ADC_REAL_VAL_SHIFT)) |
| |
| #define STM32_ADC_GET_REAL_VAL(val) \ |
| (((val) >> STM32_ADC_REAL_VAL_SHIFT) & STM32_ADC_REAL_VAL_MASK) |
| |
| #define STM32_ADC_GET_REG_VAL(val) \ |
| (((val) >> STM32_ADC_REG_VAL_SHIFT) & STM32_ADC_REG_VAL_MASK) |
| |
| #define STM32_ADC_GET_MASK(val) \ |
| (((val) >> STM32_ADC_MASK_SHIFT) & STM32_ADC_MASK_MASK) |
| |
| #define STM32_ADC_GET_SHIFT(val) \ |
| (((val) >> STM32_ADC_SHIFT_SHIFT) & STM32_ADC_SHIFT_MASK) |
| |
| #define STM32_ADC_GET_REG(val) \ |
| (((val) >> STM32_ADC_REG_SHIFT) & STM32_ADC_REG_MASK) |
| |
| /* |
| * Macro used to store resolution info. STM32_ADC_RES_* macros are defined in |
| * respective stm32xx_adc.h files |
| */ |
| #define STM32_ADC_RES(resolution, reg_val) \ |
| STM32_ADC(resolution, reg_val, STM32_ADC_RES_MASK, STM32_ADC_RES_SHIFT, \ |
| STM32_ADC_RES_REG) |
| |
| #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_STM32_ADC_H_ */ |