summaryrefslogtreecommitdiff
path: root/fw/fe310/eos/soc/spi.h
blob: 6ded15ff2d18e449e9990c789891dfb4eb67f0bd (plain)
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
#include <stdint.h>

#include "../event.h"

#define EOS_SPI_FLAG_TX         0x01
#define EOS_SPI_FLAG_MORE       0x02
#define EOS_SPI_FLAG_BSWAP      0x04

#define EOS_SPI_ETYPE_SDC       1
#define EOS_SPI_ETYPE_CAM       2

#define EOS_SPI_MAX_ETYPE       2

int eos_spi_init(void);
void eos_spi_configure(uint16_t div, uint8_t csid, uint8_t cspin, unsigned char evt);
void eos_spi_start(uint16_t div, uint8_t csid, uint8_t cspin, unsigned char evt);
void eos_spi_stop(void);
void eos_spi_enable(void);
void eos_spi_disable(void);

void eos_spi_set_handler(unsigned char evt, eos_evt_handler_t handler);

void _eos_spi_xchg_init(unsigned char *buffer, uint16_t size, uint16_t len, uint8_t flags);
int eos_spi_xchg(EOSMessage *msg, uint16_t len, uint8_t flags);
void eos_spi_handle_xchg(void);

int eos_spi_get_cs(void);
void eos_spi_set_cs(void);
void eos_spi_clear_cs(void);
uint8_t eos_spi_xchg8(uint8_t data, uint8_t flags);
uint16_t eos_spi_xchg16(uint16_t data, uint8_t flags);
uint32_t eos_spi_xchg24(uint32_t data, uint8_t flags);
uint32_t eos_spi_xchg32(uint32_t data, uint8_t flags);
void eos_spi_flush(void);