2 * Copyright (c) 1997 Nicolas Souchu
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/ppbus/ppb_1284.h,v 1.7 2000/01/14 08:03:14 nsouch Exp $
36 /* host driven signals */
38 #define nHostClk STROBE
41 #define nHostBusy AUTOFEED
42 #define nHostAck AUTOFEED
43 #define DStrb AUTOFEED
45 #define nReveseRequest nINIT
47 #define nActive1284 SELECTIN
48 #define AStrb SELECTIN
50 /* peripheral driven signals */
52 #define nDataAvail nFAULT
53 #define nPeriphRequest nFAULT
57 #define AckDataReq PERROR
58 #define nAckReverse PERROR
60 #define nPtrBusy nBUSY
61 #define nPeriphAck nBUSY
65 #define PeriphClk nACK
68 /* request mode values */
69 #define NIBBLE_1284_NORMAL 0x0
70 #define NIBBLE_1284_REQUEST_ID 0x4
71 #define BYTE_1284_NORMAL 0x1
72 #define BYTE_1284_REQUEST_ID 0x5
73 #define ECP_1284_NORMAL 0x10
74 #define ECP_1284_REQUEST_ID 0x14
75 #define ECP_1284_RLE 0x30
76 #define ECP_1284_RLE_REQUEST_ID 0x34
77 #define EPP_1284_NORMAL 0x40
78 #define EXT_LINK_1284_NORMAL 0x80
80 /* ieee1284 mode options */
81 #define PPB_REQUEST_ID 0x1
82 #define PPB_USE_RLE 0x2
83 #define PPB_EXTENSIBILITY_LINK 0x4
86 #define PPB_NO_ERROR 0
87 #define PPB_MODE_UNSUPPORTED 1 /* mode not supported by peripheral */
88 #define PPB_NOT_IEEE1284 2 /* not an IEEE1284 compliant periph. */
89 #define PPB_TIMEOUT 3 /* timeout */
90 #define PPB_INVALID_MODE 4 /* current mode is incorrect */
92 /* ieee1284 host side states */
94 #define PPB_FORWARD_IDLE 1
95 #define PPB_NEGOTIATION 2
97 #define PPB_ECP_FORWARD_IDLE 4
98 #define PPB_FWD_TO_REVERSE 5
99 #define PPB_REVERSE_IDLE 6
100 #define PPB_REVERSE_TRANSFER 7
101 #define PPB_REVERSE_TO_FWD 8
102 #define PPB_EPP_IDLE 9
103 #define PPB_TERMINATION 10
105 /* peripheral side states */
106 #define PPB_PERIPHERAL_NEGOTIATION 11
107 #define PPB_PERIPHERAL_IDLE 12
108 #define PPB_PERIPHERAL_TRANSFER 13
109 #define PPB_PERIPHERAL_TERMINATION 14
111 extern int nibble_1284_inbyte(device_t
, char *);
112 extern int byte_1284_inbyte(device_t
, char *);
113 extern int spp_1284_read(device_t
, int, char *, int, int *);
115 extern int ppb_1284_negotiate(device_t
, int, int);
116 extern int ppb_1284_terminate(device_t
);
117 extern int ppb_1284_read_id(device_t
, int, char *, int, int *);
118 extern int ppb_1284_read(device_t
, int, char *, int, int *);
119 extern int ppb_1284_get_state(device_t bus
);
120 extern int ppb_1284_set_state(device_t bus
, int state
);
122 extern int ppb_peripheral_terminate(device_t
, int);
123 extern int ppb_peripheral_negotiate(device_t
, int, int);
124 extern int byte_peripheral_write(device_t
, char *, int, int *);