1/*-
2 * Copyright (c) 1999 Luoqi Chen.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29struct aic_transinfo {
30	u_int8_t period;
31	u_int8_t offset;
32};
33
34struct aic_tinfo {
35	u_int16_t lubusy;
36	u_int8_t flags;
37	u_int8_t scsirate;
38	struct aic_transinfo current;
39	struct aic_transinfo goal;
40	struct aic_transinfo user;
41};
42
43#define	TINFO_DISC_ENB		0x01
44#define	TINFO_TAG_ENB		0x02
45#define	TINFO_SDTR_NEGO		0x04
46#define	TINFO_SDTR_SENT		0x08
47
48struct aic_scb {
49	union ccb	*ccb;
50	u_int8_t	flags;
51	u_int8_t	tag;
52	u_int8_t	target;
53	u_int8_t	lun;
54	u_int8_t	status;
55	u_int8_t	cmd_len;
56	u_int8_t	*cmd_ptr;
57	u_int32_t	data_len;
58	u_int8_t	*data_ptr;
59};
60
61#define ccb_scb_ptr	spriv_ptr0
62#define ccb_aic_ptr	spriv_ptr1
63
64#define	SCB_ACTIVE		0x01
65#define	SCB_DISCONNECTED	0x02
66#define	SCB_DEVICE_RESET	0x04
67#define	SCB_SENSE		0x08
68
69enum { AIC6260, AIC6360, AIC6370, GM82C700 };
70
71struct aic_softc {
72	device_t		dev;
73	int			unit;
74	bus_space_tag_t		tag;
75	bus_space_handle_t	bsh;
76	bus_dma_tag_t		dmat;
77
78	struct cam_sim		*sim;
79	struct cam_path		*path;
80	TAILQ_HEAD(,ccb_hdr)	pending_ccbs, nexus_ccbs;
81	struct aic_scb		*nexus;
82
83	u_int32_t		flags;
84	u_int8_t		initiator;
85	u_int8_t		state;
86	u_int8_t		target;
87	u_int8_t		lun;
88	u_int8_t		prev_phase;
89
90	u_int8_t		msg_outq;
91	u_int8_t		msg_sent;
92	int			msg_len;
93	char			msg_buf[8];
94
95	struct aic_tinfo	tinfo[8];
96	struct aic_scb		scbs[256];
97
98	int			min_period;
99	int			max_period;
100	int			chip_type;
101};
102
103#define	AIC_DISC_ENABLE		0x01
104#define	AIC_DMA_ENABLE		0x02
105#define	AIC_PARITY_ENABLE	0x04
106#define	AIC_DWIO_ENABLE		0x08
107#define	AIC_RESOURCE_SHORTAGE	0x10
108#define	AIC_DROP_MSGIN		0x20
109#define	AIC_BUSFREE_OK		0x40
110#define	AIC_FAST_ENABLE		0x80
111
112#define	AIC_IDLE		0x00
113#define	AIC_SELECTING		0x01
114#define	AIC_RESELECTED		0x02
115#define	AIC_RECONNECTING	0x03
116#define	AIC_HASNEXUS		0x04
117
118#define	AIC_MSG_IDENTIFY	0x01
119#define	AIC_MSG_TAG_Q		0x02
120#define	AIC_MSG_SDTR		0x04
121#define	AIC_MSG_WDTR		0x08
122#define	AIC_MSG_MSGBUF		0x80
123
124#define	AIC_SYNC_PERIOD		(200 / 4)
125#define	AIC_FAST_SYNC_PERIOD	(100 / 4)
126#define	AIC_MIN_SYNC_PERIOD	112
127#define	AIC_SYNC_OFFSET		8
128
129#define	aic_inb(aic, port) \
130	bus_space_read_1((aic)->tag, (aic)->bsh, (port))
131
132#define	aic_outb(aic, port, value) \
133	bus_space_write_1((aic)->tag, (aic)->bsh, (port), (value))
134
135#define	aic_insb(aic, port, addr, count) \
136	bus_space_read_multi_1((aic)->tag, (aic)->bsh, (port), (addr), (count))
137
138#define	aic_outsb(aic, port, addr, count) \
139	bus_space_write_multi_1((aic)->tag, (aic)->bsh, (port), (addr), (count))
140
141#define	aic_insw(aic, port, addr, count) \
142	bus_space_read_multi_2((aic)->tag, (aic)->bsh, (port), \
143		(u_int16_t *)(addr), (count))
144
145#define	aic_outsw(aic, port, addr, count) \
146	bus_space_write_multi_2((aic)->tag, (aic)->bsh, (port), \
147		(u_int16_t *)(addr), (count))
148
149#define	aic_insl(aic, port, addr, count) \
150	bus_space_read_multi_4((aic)->tag, (aic)->bsh, (port), \
151		(u_int32_t *)(addr), (count))
152
153#define	aic_outsl(aic, port, addr, count) \
154	bus_space_write_multi_4((aic)->tag, (aic)->bsh, (port), \
155		(u_int32_t *)(addr), (count))
156
157extern int aic_probe(struct aic_softc *);
158extern int aic_attach(struct aic_softc *);
159extern int aic_detach(struct aic_softc *);
160extern void aic_intr(void *);
161