mirror of
https://github.com/cwyark/ameba-sdk-gcc-make.git
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149 lines
3.9 KiB
C
Executable file
149 lines
3.9 KiB
C
Executable file
/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2014, Realtek Semiconductor Corp.
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* All rights reserved.
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*
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* This module is a confidential and proprietary property of RealTek and
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* possession or use of this module requires written permission of RealTek.
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*******************************************************************************
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*/
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#include "objects.h"
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#include "port_api.h"
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#include "pinmap.h"
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#include "gpio_api.h"
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#include "PinNames.h"
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//#include "mbed_error.h"
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#if CONFIG_GPIO_EN
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#if DEVICE_PORTIN || DEVICE_PORTOUT
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#define GPIO_PORT_NUM 2
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#define GPIO_PORT_WIDTH 8
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#define GPIO_PORT_WIDTH_MAX 16
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const u8 Default_Port_PinDef[GPIO_PORT_NUM][GPIO_PORT_WIDTH+1] = {
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// Port 0
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{PA_6, PA_7, PA_5, PD_4,
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PD_5, PA_4, PA_3, PA_2,
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0xFF},
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// Port 1
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{PB_4, PB_5, PC_0, PC_2,
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PC_3, PC_1, PB_3, PB_2,
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0xFF}
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};
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extern VOID HAL_GPIO_Init(HAL_GPIO_PIN *GPIO_Pin);
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extern u32 HAL_GPIO_GetPinName(u32 chip_pin);
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// high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
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// low nibble = pin number
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PinName port_pin(PortName port, int pin_n) {
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return (PinName)(pin_n + (port << 4));
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}
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void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
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{
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u32 i;
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if (port >= GPIO_PORT_NUM) {
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DBG_GPIO_ERR("port_init: Invalid port num(%d), max port num is %d\r\n", \
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port, (GPIO_PORT_NUM-1));
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}
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// Fill PORT object structure for future use
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obj->port = port;
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obj->mask = mask;
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obj->direction = dir;
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// if (obj->pin_def == NULL) {
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obj->pin_def = (uint8_t*)&Default_Port_PinDef[port][0];
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// }
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i=0;
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while (obj->pin_def[i] != 0xff) {
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i++;
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if (i == GPIO_PORT_WIDTH_MAX) {
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break;
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}
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}
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obj->mask &= ((1<<i) - 1);
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port_dir(obj, dir);
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}
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void port_dir(port_t *obj, PinDirection dir)
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{
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uint32_t i;
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HAL_GPIO_PIN GPIO_Pin;
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obj->direction = dir;
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for (i = 0; i < GPIO_PORT_WIDTH_MAX; i++) { // Process all pins
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if (obj->mask & (1 << i)) { // If the pin is used
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GPIO_Pin.pin_name = HAL_GPIO_GetPinName(obj->pin_def[i]); // get the IP pin name
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if (dir == PIN_OUTPUT) {
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GPIO_Pin.pin_mode = DOUT_PUSH_PULL;
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} else { // PIN_INPUT
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GPIO_Pin.pin_mode = DIN_PULL_NONE;
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}
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HAL_GPIO_Init(&GPIO_Pin);
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}
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}
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}
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void port_mode(port_t *obj, PinMode mode)
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{
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uint32_t i;
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for (i = 0; i < GPIO_PORT_WIDTH_MAX; i++) { // Process all pins
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if (obj->mask & (1 << i)) { // If the pin is used
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pin_mode(obj->pin_def[i], mode);
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}
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}
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}
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void port_write(port_t *obj, int value)
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{
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uint32_t i;
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HAL_GPIO_PIN GPIO_Pin;
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for (i = 0; i < GPIO_PORT_WIDTH_MAX; i++) { // Process all pins
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if (obj->mask & (1 << i)) { // If the pin is used
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GPIO_Pin.pin_name = HAL_GPIO_GetPinName(obj->pin_def[i]); // get the IP pin name
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GPIO_Pin.pin_mode = DOUT_PUSH_PULL;
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HAL_GPIO_WritePin(&GPIO_Pin, ((value>>i) & 0x01));
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}
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}
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}
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int port_read(port_t *obj)
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{
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int value=0;
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u32 i;
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HAL_GPIO_PIN_MODE pin_mode;
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HAL_GPIO_PIN GPIO_Pin;
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if (obj->direction == PIN_OUTPUT) {
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pin_mode = DOUT_PUSH_PULL;
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} else { // PIN_INPUT
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pin_mode = DIN_PULL_NONE;
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}
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for (i = 0; i < GPIO_PORT_WIDTH_MAX; i++) { // Process all pins
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if (obj->mask & (1 << i)) { // If the pin is used
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GPIO_Pin.pin_name = HAL_GPIO_GetPinName(obj->pin_def[i]); // get the IP pin name
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GPIO_Pin.pin_mode = pin_mode;
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if (HAL_GPIO_ReadPin(&GPIO_Pin)) {
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value |= (1<<i);
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}
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}
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}
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return value;
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}
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#endif
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#endif
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