1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/* $OpenBSD: nec86.c,v 1.3 2016/09/19 06:46:43 ratchov Exp $ */
/* $NecBSD: nec86.c,v 1.11 1999/07/23 11:04:39 honda Exp $ */
/* $NetBSD$ */
/*
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1996, 1997, 1998
* NetBSD/pc98 porting staff. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* nec86.c
*
* NEC PC-9801-86 SoundBoard PCM driver for NetBSD/pc98.
* Written by NAGAO Tadaaki, Feb 10, 1996.
*
* Modified by N. Honda, Mar 7, 1998
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <machine/board.h> /* PC_BASE */
#include <machine/bus.h>
#include <machine/cpu.h>
#include <sys/audioio.h>
#include <dev/audio_if.h>
#include <luna88k/cbus/nec86reg.h>
#include <luna88k/cbus/nec86hwvar.h>
#include <luna88k/cbus/nec86var.h>
#define NEC_SCR_SIDMASK 0xf0
#define NEC_SCR_MASK 0x0f
#define NEC_SCR_EXT_ENABLE 0x01
/*
* Define our interface to the higher level audio driver.
*/
struct audio_hw_if nec86_hw_if = {
.open = nec86hw_open,
.close = nec86hw_close,
.set_params = nec86hw_set_params,
.round_blocksize = nec86hw_round_blocksize,
.commit_settings = nec86hw_commit_settings,
.init_output = nec86hw_pdma_init_output,
.init_input = nec86hw_pdma_init_input,
.start_output = nec86hw_pdma_output,
.start_input = nec86hw_pdma_input,
.halt_output = nec86hw_halt_pdma,
.halt_input = nec86hw_halt_pdma,
.speaker_ctl = nec86hw_speaker_ctl,
.setfd = nec86hw_setfd,
.set_port = nec86hw_mixer_set_port,
.get_port = nec86hw_mixer_get_port,
.query_devinfo = nec86hw_mixer_query_devinfo,
.allocm = NULL,
.freem = NULL,
.round_buffersize = NULL,
.get_props = nec86_get_props,
.trigger_output = NULL,
.trigger_input = NULL
};
/*
* YAMAHA YM2608(OPNA) register read/write functions
*/
#define YM_INDEX 0
#define YM_DATA 2
void nec86_ym_read(struct nec86_softc *, u_int8_t, u_int8_t *);
void nec86_ym_write(struct nec86_softc *, u_int8_t, u_int8_t);
void
nec86_ym_read(struct nec86_softc *sc, u_int8_t index, u_int8_t *data) {
bus_space_write_1(sc->sc_ym_iot,
sc->sc_ym_iobase + sc->sc_ym_ioh, YM_INDEX, index);
delay(100);
*data = bus_space_read_1(sc->sc_ym_iot,
sc->sc_ym_iobase + sc->sc_ym_ioh, YM_DATA);
delay(100);
}
void
nec86_ym_write(struct nec86_softc *sc, u_int8_t index, u_int8_t data) {
bus_space_write_1(sc->sc_ym_iot,
sc->sc_ym_iobase + sc->sc_ym_ioh, YM_INDEX, index);
delay(100);
bus_space_write_1(sc->sc_ym_iot,
sc->sc_ym_iobase + sc->sc_ym_ioh, YM_DATA, data);
delay(100);
}
/*
* Probe for NEC PC-9801-86 SoundBoard hardware.
*/
int
nec86_probesubr(bus_space_tag_t iot, bus_space_handle_t ioh,
bus_space_handle_t n86ioh)
{
u_int8_t data;
#ifdef notyet
if (nec86hw_probesubr(iot, ioh) != 0)
return -1;
#endif /* notyet */
if (n86ioh == 0)
return -1;
data = bus_space_read_1(iot, n86ioh, NEC86_SOUND_ID);
switch (data & NEC_SCR_SIDMASK) {
#if 0 /* XXX - PC-9801-73 not yet supported. */
case 0x20:
case 0x30:
break;
#endif
case 0x40:
case 0x50:
break;
default: /* No supported board found. */
return -1;
/*NOTREACHED*/
}
return ((data & NEC_SCR_SIDMASK) >> 4) - 2;
}
/*
* Attach hardware to driver, attach hardware driver to audio
* pseudo-device driver.
*/
#define MODEL0_NAME "PC-9801-73 soundboard"
#define MODEL1_NAME "PC-9801-86 soundboard"
void
nec86_attachsubr(struct nec86_softc *sc)
{
struct nec86hw_softc *ysc = &sc->sc_nec86hw;
bus_space_tag_t iot = sc->sc_n86iot;
bus_space_handle_t n86ioh = sc->sc_n86ioh;
char *boardname[] =
{MODEL0_NAME, MODEL0_NAME, MODEL1_NAME, MODEL1_NAME};
u_int8_t data;
int model;
if ((model = nec86_probesubr(iot, n86ioh, n86ioh)) < 0) {
printf("%s: missing hardware\n", ysc->sc_dev.dv_xname);
return;
}
ysc->model = model;
/* enable YM2608(ONPA) */
data = bus_space_read_1(iot, n86ioh, NEC86_SOUND_ID);
data &= ~NEC_SCR_MASK;
data |= NEC_SCR_EXT_ENABLE;
bus_space_write_1(iot, n86ioh, NEC86_SOUND_ID, data);
switch (ysc->model) {
case 2: /* base I/O port for YM2608(OPNA) is 0x188 */
sc->sc_ym_ioh = OPNA_IOBASE1;
break;
case 3: /* base I/O port for YM2608(OPNA) is 0x288 */
sc->sc_ym_ioh = OPNA_IOBASE2;
break;
default:
/* can not happen; set to factory default */
sc->sc_ym_ioh = OPNA_IOBASE1;
break;
}
/* YM2608 I/O port set (IOA:input IOB:output) */
nec86_ym_read(sc, 0x07, &data);
data &= 0x3f;
data |= 0x80;
nec86_ym_write(sc, 0x07, data);
/* YM2608 register 0x0e has C-bus interrupt level information */
nec86_ym_read(sc, 0x0e, &data);
switch (data & 0xc0) {
case 0x00:
sc->sc_intlevel = 0;
break;
case 0x40:
sc->sc_intlevel = 6;
break;
case 0x80:
sc->sc_intlevel = 4;
break;
case 0xc0:
sc->sc_intlevel = 5; /* factory default setting */
break;
default:
/* can not happen; set to factory default */
sc->sc_intlevel = 5;
break;
}
/* reset YM2608 timer A and B: XXX need this? */
data = 0x30;
nec86_ym_write(sc, 0x27, data);
printf(" int %d", sc->sc_intlevel);
nec86hw_attach(ysc);
if (sc->sc_attached == 0) {
printf(": %s\n", boardname[ysc->model]);
audio_attach_mi(&nec86_hw_if, ysc, &ysc->sc_dev);
sc->sc_attached = 1;
}
}
|
