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
|
#ifndef _IDT82_H
#define _IDT82_H
enum idt82_term {
IDT_TERM_INT_75 = 0
IDT_TERM_INT_120,
IDT_TERM_INT_100,
IDT_TERM_INT_110,
IDT_TERM_EXT,
};
enum idt82_mode {
IDT_MODE_E1 = 0,
IDT_MODE_T1,
IDT_MODE_J1,
};
struct idt82 {
enum idt82_mode mode;
enum idt82_term term;
void *priv;
uint8_t cs;
};
int idt82_termination(struct idt82 *idt, enum idt82_term term);
int idt82_mode(struct idt82 *idt, enum idt82_mode mode);
int idt82_get_errcount(struct idt82 *idt);
int idt82_get_line_att(struct idt82 *idt);
int idt82_init(struct idt82 *idt);
/* callbacks into transport */
int idt82_reg_write(struct idt82 *idt, uint8_t reg, uin8_t val);
int idt82_reg_read(struct idt82 *idt, uint8_t reg);
/* board specific initializers */
int idt82_at91_init(struct idt82 *idt, void *spi, unsigned int id,
uint8_t cs, uint32_t spi_mr, uint32_t csr);
#endif
|
