FreeBSD/Linux Kernel Cross Reference
sys/pc98/cbus/fdcvar.h
1 /*-
2 * Copyright (c) 2004 M. Warner Losh.
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 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 /* XXX should audit this file to see if additional copyrights needed */
32
33 enum fdc_type
34 {
35 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
36 };
37
38 enum fdc_states {
39 DEVIDLE,
40 FINDWORK,
41 DOSEEK,
42 SEEKCOMPLETE ,
43 IOCOMPLETE,
44 RECALCOMPLETE,
45 STARTRECAL,
46 RESETCTLR,
47 SEEKWAIT,
48 RECALWAIT,
49 MOTORWAIT,
50 IOTIMEDOUT,
51 RESETCOMPLETE,
52 PIOREAD
53 };
54
55 #ifdef FDC_DEBUG
56 static char const * const fdstates[] = {
57 "DEVIDLE",
58 "FINDWORK",
59 "DOSEEK",
60 "SEEKCOMPLETE",
61 "IOCOMPLETE",
62 "RECALCOMPLETE",
63 "STARTRECAL",
64 "RESETCTLR",
65 "SEEKWAIT",
66 "RECALWAIT",
67 "MOTORWAIT",
68 "IOTIMEDOUT",
69 "RESETCOMPLETE",
70 "PIOREAD"
71 };
72 #endif
73
74 /*
75 * Per controller structure (softc).
76 */
77 struct fdc_data
78 {
79 int fdcu; /* our unit number */
80 int dmacnt;
81 int dmachan;
82 int flags;
83 #define FDC_STAT_VALID 0x08
84 #define FDC_HAS_FIFO 0x10
85 #define FDC_NEEDS_RESET 0x20
86 #define FDC_NODMA 0x40
87 #define FDC_ISPNP 0x80
88 #define FDC_ISPCMCIA 0x100
89 struct fd_data *fd;
90 int fdu; /* the active drive */
91 enum fdc_states state;
92 int retry;
93 #ifndef PC98
94 int fdout; /* mirror of the w/o digital output reg */
95 #endif
96 u_int status[7]; /* copy of the registers */
97 enum fdc_type fdct; /* chip version of FDC */
98 int fdc_errs; /* number of logged errors */
99 int dma_overruns; /* number of DMA overruns */
100 struct bio_queue_head head;
101 struct bio *bp; /* active buffer */
102 #ifdef PC98
103 struct resource *res_ioport, *res_fdsio, *res_fdemsio;
104 struct resource *res_irq, *res_drq;
105 int rid_ioport, rid_irq, rid_drq;
106 #else
107 struct resource *res_ioport, *res_ctl, *res_irq, *res_drq;
108 int rid_ioport, rid_ctl, rid_irq, rid_drq;
109 #endif
110 int port_off;
111 bus_space_tag_t portt;
112 bus_space_handle_t porth;
113 #ifdef PC98
114 bus_space_tag_t sc_fdsiot;
115 bus_space_handle_t sc_fdsioh;
116 bus_space_tag_t sc_fdemsiot;
117 bus_space_handle_t sc_fdemsioh;
118 #else
119 bus_space_tag_t ctlt;
120 bus_space_handle_t ctlh;
121 #endif
122 void *fdc_intr;
123 struct device *fdc_dev;
124 #ifndef PC98
125 void (*fdctl_wr)(struct fdc_data *fdc, u_int8_t v);
126 #endif
127 };
128
129 typedef int fdu_t;
130 typedef int fdcu_t;
131 typedef int fdsu_t;
132 typedef struct fd_data *fd_p;
133 typedef struct fdc_data *fdc_p;
134 typedef enum fdc_type fdc_t;
135
136 /* error returns for fd_cmd() */
137 #define FD_FAILED -1
138 #define FD_NOT_VALID -2
139 #define FDC_ERRMAX 100 /* do not log more */
140
141 extern devclass_t fdc_devclass;
142
143 enum fdc_device_ivars {
144 FDC_IVAR_FDUNIT,
145 FDC_IVAR_FDTYPE,
146 };
147
148 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
149 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
150
151 int fdc_alloc_resources(struct fdc_data *);
152 #ifndef PC98
153 void fdout_wr(fdc_p, u_int8_t);
154 #endif
155 int fd_cmd(struct fdc_data *, int, ...);
156 void fdc_release_resources(struct fdc_data *);
157 int fdc_attach(device_t);
158 int fdc_hints_probe(device_t);
159 int fdc_detach(device_t dev);
160 device_t fdc_add_child(device_t, const char *, int);
161 int fdc_initial_reset(struct fdc_data *);
162 int fdc_print_child(device_t, device_t);
163 int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
164 int fdc_write_ivar(device_t, device_t, int, uintptr_t);
165 #ifndef PC98
166 int fdc_isa_alloc_resources(device_t, struct fdc_data *);
167 #endif
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