periph_cpu_common.h

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/*
 * Copyright (C) 2025   Mesotic SAS
 *
 * 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.
 */
 
#pragma once

 
#include "cpu.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef DOXYGEN
#define HAVE_GPIO_T
typedef uint32_t gpio_t;
 
#define GPIO_UNDEF          (0xffffffff)
 
#define GPIO_PIN(x, y)      (((uint32_t)PIOA + (x << 9)) | y)
#endif /* DOXYGEN */

#define TIMER_CHANNEL_NUMOF (1)

#define GPIO_MODE(io, pu, od)   (io | (pu << 1) | (od << 2))
 
#ifndef DOXYGEN
#define HAVE_GPIO_MODE_T
typedef enum {
    GPIO_IN    = GPIO_MODE(0, 0, 0),    
    GPIO_IN_PD = 0xf,                   
    GPIO_IN_PU = GPIO_MODE(0, 1, 0),    
    GPIO_OUT   = GPIO_MODE(1, 0, 0),    
    GPIO_OD    = GPIO_MODE(1, 0, 1),    
    GPIO_OD_PU = GPIO_MODE(1, 1, 1),    
} gpio_mode_t;
 
#define HAVE_GPIO_FLANK_T
typedef enum {
    GPIO_RISING = 1,        
    GPIO_FALLING = 2,       
    GPIO_BOTH = 3           
} gpio_flank_t;
#endif /* ndef DOXYGEN */

typedef enum {
    GPIO_MUX_A = 0,         
    GPIO_MUX_B = 1,         
#ifdef CPU_FAM_SAM4S
    GPIO_MUX_C = 2,         
    GPIO_MUX_D = 3,         
#endif
} gpio_mux_t;

enum {
    PA = 0,                      
    PB = 1,                      
    PC = 2,                      
#ifdef CPU_FAM_SAM3
    PD = 3,                      
#endif
};

void gpio_init_mux(gpio_t pin, gpio_mux_t mux);

typedef struct {
    Tc *dev;                
    uint8_t id_ch0;         
} timer_conf_t;

typedef struct {
    Uart *dev;              
    gpio_t rx_pin;          
    gpio_t tx_pin;          
    gpio_mux_t mux;         
    uint8_t pmc_id;         
    uint8_t irqn;           
} uart_conf_t;
 
#ifdef __cplusplus
}
#endif