1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* $Id: cosa.h,v 1.6 1999/01/06 14:02:44 kas Exp $ */
3
4 /*
5 * Copyright (C) 1995-1997 Jan "Yenya" Kasprzak <kas@fi.muni.cz>
6 */
7
8 #ifndef COSA_H__
9 #define COSA_H__
10
11 #include <linux/ioctl.h>
12
13 #ifdef __KERNEL__
14 /* status register - output bits */
15 #define SR_RX_DMA_ENA 0x04 /* receiver DMA enable bit */
16 #define SR_TX_DMA_ENA 0x08 /* transmitter DMA enable bit */
17 #define SR_RST 0x10 /* SRP reset */
18 #define SR_USR_INT_ENA 0x20 /* user interrupt enable bit */
19 #define SR_TX_INT_ENA 0x40 /* transmitter interrupt enable bit */
20 #define SR_RX_INT_ENA 0x80 /* receiver interrupt enable bit */
21
22 /* status register - input bits */
23 #define SR_USR_RQ 0x20 /* user interrupt request pending */
24 #define SR_TX_RDY 0x40 /* transmitter empty (ready) */
25 #define SR_RX_RDY 0x80 /* receiver data ready */
26
27 #define SR_UP_REQUEST 0x02 /* request from SRP to transfer data
28 up to PC */
29 #define SR_DOWN_REQUEST 0x01 /* SRP is able to transfer data down
30 from PC to SRP */
31 #define SR_END_OF_TRANSFER 0x03 /* SRP signalize end of
32 transfer (up or down) */
33
34 #define SR_CMD_FROM_SRP_MASK 0x03 /* mask to get SRP command */
35
36 /* bits in driver status byte definitions : */
37 #define SR_RDY_RCV 0x01 /* ready to receive packet */
38 #define SR_RDY_SND 0x02 /* ready to send packet */
39 #define SR_CMD_PND 0x04 /* command pending */ /* not currently used */
40
41 /* ???? */
42 #define SR_PKT_UP 0x01 /* transfer of packet up in progress */
43 #define SR_PKT_DOWN 0x02 /* transfer of packet down in progress */
44
45 #endif /* __KERNEL__ */
46
47 #define SR_LOAD_ADDR 0x4400 /* SRP microcode load address */
48 #define SR_START_ADDR 0x4400 /* SRP microcode start address */
49
50 #define COSA_LOAD_ADDR 0x400 /* SRP microcode load address */
51 #define COSA_MAX_FIRMWARE_SIZE 0x10000
52
53 /* ioctls */
54 struct cosa_download {
55 int addr, len;
56 char __user *code;
57 };
58
59 /* Reset the device */
60 #define COSAIORSET _IO('C',0xf0)
61
62 /* Start microcode at given address */
63 #define COSAIOSTRT _IOW('C',0xf1, int)
64
65 /* Read the block from the device memory */
66 #define COSAIORMEM _IOWR('C',0xf2, struct cosa_download *)
67 /* actually the struct cosa_download itself; this is to keep
68 * the ioctl number same as in 2.4 in order to keep the user-space
69 * utils compatible. */
70
71 /* Write the block to the device memory (i.e. download the microcode) */
72 #define COSAIODOWNLD _IOW('C',0xf2, struct cosa_download *)
73 /* actually the struct cosa_download itself; this is to keep
74 * the ioctl number same as in 2.4 in order to keep the user-space
75 * utils compatible. */
76
77 /* Read the device type (one of "srp", "cosa", and "cosa8" for now) */
78 #define COSAIORTYPE _IOR('C',0xf3, char *)
79
80 /* Read the device identification string */
81 #define COSAIORIDSTR _IOR('C',0xf4, char *)
82 /* Maximum length of the identification string. */
83 #define COSA_MAX_ID_STRING 128
84
85 /* Increment/decrement the module usage count :-) */
86 /* #define COSAIOMINC _IO('C',0xf5) */
87 /* #define COSAIOMDEC _IO('C',0xf6) */
88
89 /* Get the total number of cards installed */
90 #define COSAIONRCARDS _IO('C',0xf7)
91
92 /* Get the number of channels on this card */
93 #define COSAIONRCHANS _IO('C',0xf8)
94
95 /* Set the driver for the bus-master operations */
96 #define COSAIOBMSET _IOW('C', 0xf9, unsigned short)
97
98 #define COSA_BM_OFF 0 /* Bus-mastering off - use ISA DMA (default) */
99 #define COSA_BM_ON 1 /* Bus-mastering on - faster but untested */
100
101 /* Gets the busmaster status */
102 #define COSAIOBMGET _IO('C', 0xfa)
103
104 #endif /* !COSA_H__ */