Newer
Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
#ifndef __SYSCON_H
#define __SYSCON_H
#include <inttypes.h>
#include "board.h"
#include <hw/wrc_syscon_regs.h>
struct SYSCON_WB
{
uint32_t RSTR; /*Syscon Reset Register*/
uint32_t GPSR; /*GPIO Set/Readback Register*/
uint32_t GPCR; /*GPIO Clear Register*/
uint32_t HWFR; /*Hardware Feature Register*/
uint32_t TCR; /*Timer Control Register*/
uint32_t TVR; /*Timer Counter Value Register*/
};
/*GPIO pins*/
#define GPIO_LED_LINK SYSC_GPSR_LED_LINK
#define GPIO_LED_STAT SYSC_GPSR_LED_STAT
#define GPIO_SCL SYSC_GPSR_FMC_SCL
#define GPIO_SDA SYSC_GPSR_FMC_SDA
#define GPIO_BTN1 SYSC_GPSR_BTN1
#define GPIO_BTN2 SYSC_GPSR_BTN2
void timer_init(uint32_t enable);
uint32_t timer_get_tics();
void timer_delay(uint32_t how_long);
static volatile struct SYSCON_WB *syscon = (volatile struct SYSCON_WB *) BASE_SYSCON;
/****************************
* GPIO
***************************/
static inline void gpio_out(int pin, int val)
{
if(val)
syscon->GPSR = pin;
else
syscon->GPCR = pin;
}
static inline int gpio_in(int pin)
{
return syscon->GPSR & pin ? 1: 0;
}
#endif