blob: 41ae0245142fdc8d5a8b8f97724e6297cdadf8f7 (
plain) (
blame)
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
|
/*
* RTEMS driver for Blackfin SPI
*
* COPYRIGHT (c) 2010 Kallisti Labs, Los Gatos, CA, USA
* written by Allan Hessenflow <allanh@kallisti.com>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#ifndef _spi_h
#define _spi_h
#ifdef __cplusplus
extern "C" {
#endif
typedef struct {
void *base;
/* remaining entries are for internal use */
rtems_id sem;
int bytes_per_word;
uint16_t idle_pattern;
uint8_t *rd_ptr;
const uint8_t *wr_ptr;
int len;
} bfin_spi_state_t;
typedef struct {
rtems_libi2c_bus_t bus;
bfin_spi_state_t p;
} bfin_spi_bus_t;
void bfin_spi_isr(int v);
rtems_status_code bfin_spi_init(rtems_libi2c_bus_t *bus);
rtems_status_code bfin_spi_send_start(rtems_libi2c_bus_t *bus);
int bfin_spi_read_bytes(rtems_libi2c_bus_t *bus, unsigned char *buf, int len);
int bfin_spi_write_bytes(rtems_libi2c_bus_t *bus, unsigned char *buf, int len);
int bfin_spi_ioctl(rtems_libi2c_bus_t *bus, int cmd, void *arg);
#ifdef __cplusplus
}
#endif
#endif /* _spi_h */
|