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
51
52
53
54
55
56
57
58
59
|
#include <stdlib.h>
#include <stdint.h>
#include "eos.h"
#include "soc/i2c.h"
#include "fxl6408.h"
#define FXL6408_ADDR0 0x44
#define FXL6408_ADDR1 0x43
int fxl6408_reg_read(uint8_t chip_id, uint8_t reg, uint8_t *data) {
uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
int rv;
rv = eos_i2c_read8(addr, reg, data, 1);
return rv;
}
int fxl6408_reg_write(uint8_t chip_id, uint8_t reg, uint8_t data) {
uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
int rv;
rv = eos_i2c_write8(addr, reg, &data, 1);
return rv;
}
int fxl6408_get_pin(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t *val) {
uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
int rv;
if (reg == FXL6408_REG_ID_CTRL) return EOS_ERR;
rv = eos_i2c_read8(addr, reg, val, 1);
if (rv) return rv;
*val = *val >> pin;
*val &= 0x01;
return EOS_OK;
}
int fxl6408_set_pin(uint8_t chip_id, uint8_t reg, uint8_t pin, uint8_t val) {
uint8_t addr = chip_id ? FXL6408_ADDR1 : FXL6408_ADDR0;
uint8_t data;
int rv;
if ((reg == FXL6408_REG_ID_CTRL) || (reg == FXL6408_REG_I_STATE)) return EOS_ERR;
rv = eos_i2c_read8(addr, reg, &data, 1);
if (rv) return rv;
val &= 0x01;
data &= ~(1 << pin);
if (val) data |= (1 << pin);
rv = eos_i2c_write8(addr, reg, &data, 1);
return rv;
}
|
