blob: 7efc5e31dc11030535c0fe084f8f65a9825e0f6f (
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
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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
#ifndef HAYESESP_H
#define HAYESESP_H
struct hayes_esp_config {
short flow_on;
short flow_off;
short rx_trigger;
short tx_trigger;
short pio_threshold;
unsigned char rx_timeout;
char dma_channel;
};
#ifdef __KERNEL__
#define ESP_DMA_CHANNEL 0
#define ESP_RX_TRIGGER 768
#define ESP_TX_TRIGGER 768
#define ESP_FLOW_OFF 1016
#define ESP_FLOW_ON 944
#define ESP_RX_TMOUT 128
#define ESP_PIO_THRESHOLD 32
#define ESP_IN_MAJOR 57 /* major dev # for dial in */
#define ESP_OUT_MAJOR 58 /* major dev # for dial out */
#define ESPC_SCALE 3
#define UART_ESI_BASE 0x00
#define UART_ESI_SID 0x01
#define UART_ESI_RX 0x02
#define UART_ESI_TX 0x02
#define UART_ESI_CMD1 0x04
#define UART_ESI_CMD2 0x05
#define UART_ESI_STAT1 0x04
#define UART_ESI_STAT2 0x05
#define UART_ESI_RWS 0x07
#define UART_IER_DMA_TMOUT 0x80
#define UART_IER_DMA_TC 0x08
#define ESI_SET_IRQ 0x04
#define ESI_SET_DMA_TMOUT 0x05
#define ESI_SET_SRV_MASK 0x06
#define ESI_SET_ERR_MASK 0x07
#define ESI_SET_FLOW_CNTL 0x08
#define ESI_SET_FLOW_CHARS 0x09
#define ESI_SET_FLOW_LVL 0x0a
#define ESI_SET_TRIGGER 0x0b
#define ESI_SET_RX_TIMEOUT 0x0c
#define ESI_SET_FLOW_TMOUT 0x0d
#define ESI_WRITE_UART 0x0e
#define ESI_READ_UART 0x0f
#define ESI_SET_MODE 0x10
#define ESI_GET_ERR_STAT 0x12
#define ESI_GET_UART_STAT 0x13
#define ESI_GET_RX_AVAIL 0x14
#define ESI_GET_TX_AVAIL 0x15
#define ESI_START_DMA_RX 0x16
#define ESI_START_DMA_TX 0x17
#define ESI_ISSUE_BREAK 0x1a
#define ESI_FLUSH_RX 0x1b
#define ESI_FLUSH_TX 0x1c
#define ESI_SET_BAUD 0x1d
#define ESI_SET_ENH_IRQ 0x1f
#define ESI_SET_REINTR 0x20
#define ESI_SET_PRESCALAR 0x23
#define ESI_NO_COMMAND 0xff
#define ESP_STAT_RX_TIMEOUT 0x01
#define ESP_STAT_DMA_RX 0x02
#define ESP_STAT_DMA_TX 0x04
#define ESP_STAT_NEVER_DMA 0x08
#define ESP_STAT_USE_PIO 0x10
#define ESP_EVENT_WRITE_WAKEUP 0
#define ESP_MAGIC 0x53ee
#define ESP_XMIT_SIZE 4096
struct esp_struct {
int magic;
int port;
int irq;
int flags; /* defined in tty.h */
struct tty_struct *tty;
int read_status_mask;
int ignore_status_mask;
int timeout;
int stat_flags;
int custom_divisor;
int close_delay;
unsigned short closing_wait;
unsigned short closing_wait2;
int IER; /* Interrupt Enable Register */
int MCR; /* Modem control register */
unsigned long event;
unsigned long last_active;
int line;
int count; /* # of fd on device */
int blocked_open; /* # of blocked opens */
long session; /* Session of opening process */
long pgrp; /* pgrp of opening process */
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
struct tq_struct tqueue;
struct tq_struct tqueue_hangup;
struct termios normal_termios;
struct termios callout_termios;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
wait_queue_head_t delta_msr_wait;
wait_queue_head_t break_wait;
struct async_icount icount; /* kernel counters for the 4 input interrupts */
struct hayes_esp_config config; /* port configuration */
struct esp_struct *next_port; /* For the linked list */
};
struct esp_pio_buffer {
unsigned char data[1024];
struct esp_pio_buffer *next;
};
#endif /* __KERNEL__ */
#endif /* ESP_H */
|
