/*
 * Copyright (C) 2017 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */

/**
 * @ingroup         cpu_stm32l4
 * @{
 *
 * @file
 * @brief           CPU specific definitions for internal peripheral handling
 *
 * @author          Hauke Petersen <hauke.petersen@fu-berlin.de>
 *
 */

#ifndef PERIPH_CPU_H
#define PERIPH_CPU_H

#include "periph_cpu_common.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief   Starting address of the CPU ID
 */
#define CPUID_ADDR          (0x1fff7590)

/**
 * @brief   Available ports
 */
enum {
    PORT_A = 0,             /**< port A */
    PORT_B = 1,             /**< port B */
    PORT_C = 2,             /**< port C */
    PORT_D = 3,             /**< port D */
    PORT_E = 4,             /**< port E */
    PORT_F = 5,             /**< port F */
    PORT_G = 6,             /**< port G */
    PORT_H = 7,             /**< port H */
};

/**
 * @brief   Available number of ADC devices
 */
#if defined(CPU_MODEL_STM32L476RG) || defined(CPU_MODEL_STM32L475VG)
#define ADC_DEVS            (3U)
#elif defined(CPU_MODEL_STM32L452RE) || defined(CPU_MODEL_STM32L432KC)
#define ADC_DEVS            (1U)
#endif

#if defined(CPU_MODEL_STM32L476RG) || defined(CPU_MODEL_STM32L475VG) || \
    defined(CPU_MODEL_STM32L452RE) || defined(CPU_MODEL_STM32L432KC)
/**
 * @brief   ADC voltage regulator start-up time [us]
 */
#define ADC_T_ADCVREG_STUP_US (20)
#endif

#ifndef DOXYGEN
/**
 * @brief   Override ADC resolution values
 * @{
 */
#define HAVE_ADC_RES_T
typedef enum {
    ADC_RES_6BIT  = (ADC_CFGR_RES),   /**< ADC resolution: 6 bit */
    ADC_RES_8BIT  = (ADC_CFGR_RES_1), /**< ADC resolution: 8 bit */
    ADC_RES_10BIT = (ADC_CFGR_RES_0), /**< ADC resolution: 10 bit */
    ADC_RES_12BIT = (0x0),            /**< ADC resolution: 12 bit */
    ADC_RES_14BIT = (0x1),            /**< not applicable */
    ADC_RES_16BIT = (0x2)             /**< not applicable */
} adc_res_t;
/** @} */
#endif /* ndef DOXYGEN */

/**
 * @brief   ADC channel configuration data
 */
typedef struct {
    gpio_t pin;             /**< pin connected to the channel */
    uint8_t dev;            /**< ADCx - 1 device used for the channel */
    uint8_t chan;           /**< CPU ADC channel connected to the pin */
} adc_conf_t;

#ifdef __cplusplus
}
#endif

#endif /* PERIPH_CPU_H */
/** @} */