libs/rt-thread
libs
/
rt-thread
4
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
rt-thread/bsp/ls1cdev/libraries/ls1c_pin.c

144 lines
4.1 KiB
C
Raw Normal View History

将“龙芯1c库”中的GPIO相关接口移植到RT-Thread
2017-07-18 11:15:10 +08:00
// <20><><EFBFBD>Ź<EFBFBD><C5B9><EFBFBD>(<28><>ͨgpio<69><6F>pwm<77><6D><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>)<29><><EFBFBD>ؽӿ<D8BD>
#include "ls1c_public.h"
#include "ls1c_regs.h"
#include "ls1c_gpio.h"
#include "ls1c_pin.h"
/*
* <EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>pin<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>;(<EFBFBD><EFBFBD>ͨgpio<EFBFBD><EFBFBD><EFBFBD><EFBFBD>gpio)
* @gpio gpio<EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD>
* @purpose <EFBFBD><EFBFBD>;
*/
void pin_set_purpose(unsigned int gpio, pin_purpose_t purpose)
{
volatile unsigned int *gpio_cfgx; // GPIO_CFGx<47>Ĵ<EFBFBD><C4B4><EFBFBD>
unsigned int pin = GPIO_GET_PIN(gpio);
gpio_cfgx = gpio_get_cfg_reg(gpio);
if (PIN_PURPOSE_GPIO == purpose) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨgpio
{
reg_set_one_bit(gpio_cfgx, pin);
}
else // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>gpio)
{
reg_clr_one_bit(gpio_cfgx, pin);
}
return ;
}
/*
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>pinΪ<EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @gpio gpio<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @remap <EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void pin_set_remap(unsigned int gpio, pin_remap_t remap)
{
volatile unsigned int *reg = NULL; // <20><><EFBFBD>üĴ<C3BC><C4B4><EFBFBD>
unsigned int port = GPIO_GET_PORT(gpio);
unsigned int pin = GPIO_GET_PIN(gpio);
switch (port)
{
case 0:
switch (remap)
{
case PIN_REMAP_FIRST:
reg = (volatile unsigned int *)LS1C_CBUS_FIRST0;
break;
case PIN_REMAP_SECOND:
reg = (volatile unsigned int *)LS1C_CBUS_SECOND0;
break;
case PIN_REMAP_THIRD:
reg = (volatile unsigned int *)LS1C_CBUS_THIRD0;
break;
case PIN_REMAP_FOURTH:
reg = (volatile unsigned int *)LS1C_CBUS_FOURTH0;
break;
case PIN_REMAP_FIFTH:
reg = (volatile unsigned int *)LS1C_CBUS_FIFTH0;
break;
}
break;
case 1:
switch (remap)
{
case PIN_REMAP_FIRST:
reg = (volatile unsigned int *)LS1C_CBUS_FIRST1;
break;
case PIN_REMAP_SECOND:
reg = (volatile unsigned int *)LS1C_CBUS_SECOND1;
break;
case PIN_REMAP_THIRD:
reg = (volatile unsigned int *)LS1C_CBUS_THIRD1;
break;
case PIN_REMAP_FOURTH:
reg = (volatile unsigned int *)LS1C_CBUS_FOURTH1;
break;
case PIN_REMAP_FIFTH:
reg = (volatile unsigned int *)LS1C_CBUS_FIFTH1;
break;
}
break;
case 2:
switch (remap)
{
case PIN_REMAP_FIRST:
reg = (volatile unsigned int *)LS1C_CBUS_FIRST2;
break;
case PIN_REMAP_SECOND:
reg = (volatile unsigned int *)LS1C_CBUS_SECOND2;
break;
case PIN_REMAP_THIRD:
reg = (volatile unsigned int *)LS1C_CBUS_THIRD2;
break;
case PIN_REMAP_FOURTH:
reg = (volatile unsigned int *)LS1C_CBUS_FOURTH2;
break;
case PIN_REMAP_FIFTH:
reg = (volatile unsigned int *)LS1C_CBUS_FIFTH2;
break;
}
break;
case 3:
switch (remap)
{
case PIN_REMAP_FIRST:
reg = (volatile unsigned int *)LS1C_CBUS_FIRST3;
break;
case PIN_REMAP_SECOND:
reg = (volatile unsigned int *)LS1C_CBUS_SECOND3;
break;
case PIN_REMAP_THIRD:
reg = (volatile unsigned int *)LS1C_CBUS_THIRD3;
break;
case PIN_REMAP_FOURTH:
reg = (volatile unsigned int *)LS1C_CBUS_FOURTH3;
break;
case PIN_REMAP_FIFTH:
reg = (volatile unsigned int *)LS1C_CBUS_FIFTH3;
break;
}
break;
default:
return ;
}
// <20><>1
reg_set_one_bit(reg, pin);
return ;
}