1 | /* $NetBSD: cacvar.h,v 1.21 2016/09/27 03:33:32 pgoyette Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2000 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Andrew Doran. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #ifndef _IC_CACVAR_H_ |
33 | #define _IC_CACVAR_H_ |
34 | |
35 | #include <sys/mutex.h> |
36 | #include <sys/condvar.h> |
37 | |
38 | #include <dev/sysmon/sysmonvar.h> |
39 | #include <sys/envsys.h> |
40 | |
41 | #define CAC_MAX_CCBS 256 |
42 | #define CAC_MAX_XFER (0xffff * 512) |
43 | #define CAC_SG_SIZE 32 |
44 | |
45 | #define cac_inb(sc, port) \ |
46 | bus_space_read_1((sc)->sc_iot, (sc)->sc_ioh, port) |
47 | #define cac_inw(sc, port) \ |
48 | bus_space_read_2((sc)->sc_iot, (sc)->sc_ioh, port) |
49 | #define cac_inl(sc, port) \ |
50 | bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, port) |
51 | #define cac_outb(sc, port, val) \ |
52 | bus_space_write_1((sc)->sc_iot, (sc)->sc_ioh, port, val) |
53 | #define cac_outw(sc, port, val) \ |
54 | bus_space_write_2((sc)->sc_iot, (sc)->sc_ioh, port, val) |
55 | #define cac_outl(sc, port, val) \ |
56 | bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, port, val) |
57 | |
58 | /* |
59 | * Stupid macros to deal with alignment/endianness issues. |
60 | */ |
61 | |
62 | #define CAC_GET1(x) \ |
63 | (((u_char *)&(x))[0]) |
64 | #define CAC_GET2(x) \ |
65 | (((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) |
66 | #define CAC_GET4(x) \ |
67 | ((((u_char *)&(x))[0] | (((u_char *)&(x))[1] << 8)) | \ |
68 | (((u_char *)&(x))[2] << 16 | (((u_char *)&(x))[3] << 24))) |
69 | |
70 | struct cac_softc; |
71 | struct cac_ccb; |
72 | |
73 | struct cac_context { |
74 | void (*cc_handler)(device_t, void *, int); |
75 | device_t cc_dv; |
76 | void *cc_context; |
77 | }; |
78 | |
79 | struct cac_ccb { |
80 | /* Data the controller will touch - 276 bytes */ |
81 | struct cac_hdr ccb_hdr; |
82 | struct cac_req ccb_req; |
83 | struct cac_sgb ccb_seg[CAC_SG_SIZE]; |
84 | |
85 | /* Data the controller won't touch */ |
86 | int ccb_flags; |
87 | int ccb_datasize; |
88 | paddr_t ccb_paddr; |
89 | bus_dmamap_t ccb_dmamap_xfer; |
90 | SIMPLEQ_ENTRY(cac_ccb) ccb_chain; |
91 | struct cac_context ccb_context; |
92 | }; |
93 | |
94 | #define CAC_CCB_DATA_IN 0x0001 /* Map describes inbound xfer */ |
95 | #define CAC_CCB_DATA_OUT 0x0002 /* Map describes outbound xfer */ |
96 | #define CAC_CCB_ACTIVE 0x0004 /* Command submitted to controller */ |
97 | |
98 | struct cac_linkage { |
99 | struct cac_ccb *(*cl_completed)(struct cac_softc *); |
100 | int (*cl_fifo_full)(struct cac_softc *); |
101 | void (*cl_intr_enable)(struct cac_softc *, int); |
102 | int (*cl_intr_pending)(struct cac_softc *); |
103 | void (*cl_submit)(struct cac_softc *, struct cac_ccb *); |
104 | }; |
105 | |
106 | struct cac_softc { |
107 | device_t sc_dev; |
108 | kmutex_t sc_mutex; |
109 | bus_space_tag_t sc_iot; |
110 | bus_space_handle_t sc_ioh; |
111 | bus_dma_tag_t sc_dmat; |
112 | bus_dmamap_t sc_dmamap; |
113 | int sc_nunits; |
114 | uint64_t sc_unitmask; |
115 | void *sc_ih; |
116 | void * sc_ccbs; |
117 | paddr_t sc_ccbs_paddr; |
118 | SIMPLEQ_HEAD(, cac_ccb) sc_ccb_free; |
119 | SIMPLEQ_HEAD(, cac_ccb) sc_ccb_queue; |
120 | kcondvar_t sc_ccb_cv; |
121 | struct cac_linkage sc_cl; |
122 | |
123 | /* scsi ioctl from sd device */ |
124 | int (*sc_ioctl)(device_t, u_long, void *); |
125 | |
126 | struct sysmon_envsys *sc_sme; |
127 | envsys_data_t *sc_sensor; |
128 | }; |
129 | |
130 | /* XXX These have to become spinlocks in case of fine SMP */ |
131 | #define CAC_LOCK(sc) splbio() |
132 | #define CAC_UNLOCK(sc, lock) splx(lock) |
133 | typedef int cac_lock_t; |
134 | |
135 | struct cac_attach_args { |
136 | int caca_unit; |
137 | }; |
138 | |
139 | int cac_cmd(struct cac_softc *, int, void *, int, int, int, int, |
140 | struct cac_context *); |
141 | int cac_init(struct cac_softc *, const char *, int); |
142 | int cac_rescan(device_t, const char *, const int *); |
143 | int cac_intr(void *); |
144 | |
145 | extern const struct cac_linkage cac_l0; |
146 | |
147 | #endif /* !_IC_CACVAR_H_ */ |
148 | |