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sim_gpio.cpp
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283 lines (233 loc) · 7.39 KB
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/**************************************************************************
* Copyright (C), AirM2M Tech. Co., Ltd.
*
* Name: sim_gpio.cpp
* Author: panjun
* Version: V0.1
* Date: 2016/10/19
*
* Description:
*
*
* History:
* panjun 16/10/19 Initially create file.
**************************************************************************/
#include "stdafx.h"
#include "event.h"
#include "platform.h"
#include "platform_conf.h"
#include "platform_rtos.h"
#include "W32_util.h"
#define GPIO_EVENT_DIR 1
#define GPIO_EVENT_SET 2
#define GPIO_EVENT_CHANGE 3
#define GPIO_DIR_NOT_OPEN 0
#define GPIO_DIR_OUTPUT 1
#define GPIO_DIR_INPUT 2
#define GPIO_DIR_INT 3
#define GPIO_MAX (NUM_PIO * 32)
typedef struct{
UINT8 dir;
UINT8 val;
}gpio_value_t;
static event_handle_t gpio_event = INVALID_EVENT_HANDLE;
static gpio_value_t gpio_value[GPIO_MAX] = {
{GPIO_DIR_OUTPUT, 1}, /* GPIO0 */
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1}, /* GPIO16 */
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1}, /* GPIO32 */
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1}, /* GPIO48 */
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
{GPIO_DIR_OUTPUT, 1},
};
void gpio_init(void)
{
INT i;
for(i=0; i < GPIO_MAX; i++)
{
gpio_value[i].dir = GPIO_DIR_OUTPUT;
gpio_value[i].val = 1;
}
}
void send_int_message(UINT8 int_id, UINT16 resnum){
PlatformMessage *message = (PlatformMessage*)WinUtil::L_MALLOC(sizeof(PlatformMessage));
message->id = RTOS_MSG_INT;
message->data.interruptData.id = int_id;
message->data.interruptData.resnum = resnum;
platform_rtos_send(message);
}
void gpio_event_cb(UINT8* packet, UINT32 length){
UINT8 port, pin, val;
UINT8 realGpio;
if(length < 1) return;
switch(packet[0]){
case GPIO_EVENT_CHANGE:
if(length != 4){
LogWriter::LOGX("gpio_event_cb: error int packet length %d!", length);
break;
}
port = packet[1];
pin = packet[2];
val = packet[3];
realGpio = (port << 5) + pin;
if(!(gpio_value[realGpio].dir == GPIO_DIR_INPUT || gpio_value[realGpio].dir == GPIO_DIR_INT)) break;
if(gpio_value[realGpio].val == val) break;
gpio_value[realGpio].val = val;
//LogWriter::LOGX("gpio_event_change:%d %d %d\n",port,pin,val);
if(gpio_value[realGpio].dir == GPIO_DIR_INT){
send_int_message(val == 1 ? INT_GPIO_POSEDGE : INT_GPIO_NEGEDGE, PLATFORM_IO_ENCODE(port, pin, 0));
}
break;
case GPIO_EVENT_SET:
break;
}
}
static _inline int set_dir(UINT8 port, UINT8 pin, UINT8 dir){
UINT8 packet[4];
UINT8 realGpio = (port << 5) + pin;
if(gpio_value[realGpio].dir == GPIO_DIR_NOT_OPEN){
LogWriter::LOGX("[set_dir]: error pin hasn't opened %d %d %d", port, pin, gpio_value[realGpio].dir);
return -1;
}
LogWriter::LOGX("[set_dir] %d[%d,%d],%d", realGpio, port, pin, dir);
gpio_value[realGpio].dir = dir;
packet[0] = GPIO_EVENT_DIR;
packet[1] = port;
packet[2] = pin;
packet[3] = dir;
send_event(gpio_event, (PCSTR)packet, sizeof(packet));
return 0;
}
static _inline int gpio_set(UINT8 port, UINT8 pin, UINT8 val){
UINT8 realGpio = (port << 5) + pin;
if(port == 1 && gpio_value[realGpio].dir == GPIO_DIR_NOT_OPEN) {
set_dir(port, pin, GPIO_DIR_OUTPUT);
}
if(gpio_value[realGpio].dir != GPIO_DIR_OUTPUT){
LogWriter::LOGX("[gpio_set]: pin is not output %d %d %d\n",port, pin, gpio_value[realGpio].dir);
return -1;
}
if(gpio_value[realGpio].val != val){
UINT8 packet[4];
gpio_value[realGpio].val = val;
packet[0] = GPIO_EVENT_SET;
packet[1] = port;
packet[2] = pin;
packet[3] = val;
send_event(gpio_event, (PCSTR)packet, sizeof(packet));
}
return 0;
}
static _inline int gpio_get(UINT8 port, UINT8 pin){
UINT8 realGpio = (port << 5) + pin;
if(gpio_value[realGpio].dir != GPIO_DIR_INPUT && gpio_value[realGpio].dir != GPIO_DIR_INT){
LogWriter::LOGX("[gpio_get]: pin is not input %d %d %d", port, pin, gpio_value[realGpio].dir);
return -1;
}
return 0;
}
static _inline int gpio_close(UINT8 port, UINT8 pin){
UINT8 realGpio = (port << 5) + pin;
if(gpio_value[realGpio].dir == GPIO_DIR_INT){
LogWriter::LOGX("[gpio_close]: EINT_UnMask %d %d %d", port, pin, gpio_value[realGpio].dir);
}
return 0;
}
// ****************************************************************************
// ****************************************************************************
// PIO functions
pio_type platform_pio_op( unsigned port_val, pio_type pinmask, int op )
{
UINT8 port = (UINT8)port_val;
UINT8 pin;
if(INVALID_EVENT_HANDLE == gpio_event){
gpio_event = add_event("GPIO", EVENT_GPIO, gpio_event_cb);
}
for(pin = 0; pin < 32; pin++){
if((pinmask&(1<<pin)) == 0) continue;
switch(op){
case PLATFORM_IO_PIN_DIR_INT:
if(set_dir(port, pin, GPIO_DIR_INT) == -1) return 0;
break;
case PLATFORM_IO_PIN_DIR_INPUT:
if(set_dir(port, pin, GPIO_DIR_INPUT) == -1) return 0;
break;
case PLATFORM_IO_PIN_DIR_OUTPUT:
case PLATFORM_IO_PIN_DIR_OUTPUT1:
if(set_dir(port, pin, GPIO_DIR_OUTPUT) == -1) return 0;
break;
case PLATFORM_IO_PIN_SET:
if(gpio_set(port, pin, 1) == -1) return 0;
break;
case PLATFORM_IO_PIN_CLEAR:
if(gpio_set(port, pin, 0) == -1) return 0;
break;
case PLATFORM_IO_PIN_GET:
return gpio_get(port, pin);
break;
case PLATFORM_IO_PIN_CLOSE:
if(gpio_close(port, pin) == -1) return 0;
break;
default:
break;
}
}
return 1;
}