/*
 * Copyright (C) 2019 Inria
 *
 * 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     boards_p-nucleo-wb55
 * @{
 *
 * @file
 * @brief       Peripheral MCU configuration for the p-nucleo-wb55 board
 *
 * @author      Francisco Molina <francois-xavier.molina@inria.fr>
 */


#ifndef PERIPH_CONF_H
#define PERIPH_CONF_H

#include "periph_cpu.h"
#include "cfg_i2c1_pb8_pb9.h"
#include "cfg_rtt_default.h"
#include "cfg_timer_tim2.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @name    Clock system configuration
 * @{
 */
/* 0: no external high speed crystal available
 * else: actual crystal frequency [in Hz] */
#define CLOCK_HSE           (32000000U)

#ifndef CLOCK_LSE
/* 0: no external low speed crystal available,
 * 1: external crystal available (always 32.768kHz)
 */
#define CLOCK_LSE           (1)
#endif

/* 0: enable MSI only if HSE isn't available
 * 1: always enable MSI (e.g. if USB or RNG is used)*/
#define CLOCK_MSI_ENABLE    (1)

#ifndef CLOCK_MSI_LSE_PLL
/* 0: disable Hardware auto calibration with LSE
 * 1: enable Hardware auto calibration with LSE (PLL-mode)
 */
#define CLOCK_MSI_LSE_PLL   (1)
#endif

/* give the target core clock (HCLK) frequency [in Hz], maximum: 64MHz */
#define CLOCK_CORECLOCK     (64000000U)
/* PLL configuration: make sure your values are legit!
 *
 * compute by: CORECLOCK = (((PLL_IN / M) * N) / R)
 * with:
 * PLL_IN:  input clock, HSE or MSI @ 48MHz
 * M:       pre-divider,  allowed range: [1:8]
 * N:       multiplier,   allowed range: [8:86]
 * R:       post-divider, allowed range: [2:8]
 *
 * Also the following constraints need to be met:
 * (PLL_IN / M)     -> [4MHz:16MHz]
 * (PLL_IN / M) * N -> [64MHz:344MHz]
 * CORECLOCK        -> 64MHz MAX!
 */
#define CLOCK_PLL_M         (4)
#define CLOCK_PLL_N         (32)
#define CLOCK_PLL_R         (4)

/* EXTAHB (HCLK2) max freq 32 Mhz*/
#define CLOCK_EXTAHB_DIV    RCC_EXTCFGR_C2HPRE_3
#define CLOCK_EXTAHB        (CLOCK_CORECLOCK / 2)
/* peripheral clock setup */
#define CLOCK_AHB_DIV       0x00000000U
#define CLOCK_AHB           (CLOCK_CORECLOCK / 1)
#define CLOCK_APB1_DIV      0x00000000U
#define CLOCK_APB1          (CLOCK_CORECLOCK / 1)
#define CLOCK_APB2_DIV      0x00000000U
#define CLOCK_APB2          (CLOCK_CORECLOCK / 1)
/** @} */

/**
 * @name    UART configuration
 * @{
 */
static const uart_conf_t uart_config[] = {
    {
        .dev        = USART1,
        .rcc_mask   = RCC_APB2ENR_USART1EN,
        .rx_pin     = GPIO_PIN(PORT_B, 7),
        .tx_pin     = GPIO_PIN(PORT_B, 6),
        .rx_af      = GPIO_AF7,
        .tx_af      = GPIO_AF7,
        .bus        = APB2,
        .irqn       = USART1_IRQn,
        .type       = STM32_USART,
        .clk_src    = 0, /* Use APB clock */
    },
    {
        .dev        = LPUART1,
        .rcc_mask   = RCC_APB1ENR2_LPUART1EN,
        .rx_pin     = GPIO_PIN(PORT_A, 3),
        .tx_pin     = GPIO_PIN(PORT_A, 2),
        .rx_af      = GPIO_AF8,
        .tx_af      = GPIO_AF8,
        .bus        = APB12,
        .irqn       = LPUART1_IRQn,
        .type       = STM32_LPUART,
        .clk_src    = 0, /* Use APB clock */
    },
};

#define UART_0_ISR          (isr_usart1)
#define UART_1_ISR          (isr_lpuart1)

#define UART_NUMOF          ARRAY_SIZE(uart_config)
/** @} */

/**
 * @name    SPI configuration
 * @{
 */
static const spi_conf_t spi_config[] = {
    {
        .dev      = SPI1,
        .mosi_pin = GPIO_PIN(PORT_A, 7),
        .miso_pin = GPIO_PIN(PORT_A, 6),
        .sclk_pin = GPIO_PIN(PORT_A, 5),
        .cs_pin   = GPIO_UNDEF,
        .mosi_af  = GPIO_AF5,
        .miso_af  = GPIO_AF5,
        .sclk_af  = GPIO_AF5,
        .cs_af    = GPIO_AF5,
        .rccmask  = RCC_APB2ENR_SPI1EN,
        .apbbus   = APB2,
    }
};

#define SPI_NUMOF           ARRAY_SIZE(spi_config)
/** @} */

#ifdef __cplusplus
}
#endif

#endif /* PERIPH_CONF_H */
/** @} */