1 /* $NetBSD: wss_isa.c,v 1.31 2022/02/12 03:24:35 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 1994 John Brezak
5 * Copyright (c) 1991-1993 Regents of the University of California.
6 * All rights reserved.
7 *
8 * MAD support:
9 * Copyright (c) 1996 Lennart Augustsson
10 * Based on code which is
11 * Copyright (c) 1994 Hannu Savolainen
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 * must display the following acknowledgement:
23 * This product includes software developed by the Computer Systems
24 * Engineering Group at Lawrence Berkeley Laboratory.
25 * 4. Neither the name of the University nor of the Laboratory may be used
26 * to endorse or promote products derived from this software without
27 * specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 */
42
43 #include <sys/cdefs.h>
44 __KERNEL_RCSID(0, "$NetBSD: wss_isa.c,v 1.31 2022/02/12 03:24:35 riastradh Exp $");
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/device.h>
49 #include <sys/errno.h>
50
51 #include <sys/cpu.h>
52 #include <sys/intr.h>
53 #include <sys/bus.h>
54
55 #include <sys/audioio.h>
56 #include <dev/audio/audio_if.h>
57
58 #include <dev/isa/isavar.h>
59 #include <dev/isa/isadmavar.h>
60
61 #include <dev/ic/ad1848reg.h>
62 #include <dev/isa/ad1848var.h>
63 #include <dev/isa/wssreg.h>
64 #include <dev/isa/wssvar.h>
65 #include <dev/isa/madreg.h>
66
67 #ifdef AUDIO_DEBUG
68 #define DPRINTF(x) if (wssdebug) printf x
69 extern int wssdebug;
70 #else
71 #define DPRINTF(x)
72 #endif
73
74 static int wssfind(device_t, cfdata_t, struct wss_softc *, int,
75 struct isa_attach_args *);
76
77 static void madprobe(struct wss_softc *, int);
78 static void madunmap(struct wss_softc *);
79 static int detect_mad16(struct wss_softc *, int);
80
81 int wss_isa_probe(device_t, cfdata_t, void *);
82 void wss_isa_attach(device_t, device_t, void *);
83
84 CFATTACH_DECL_NEW(wss_isa, sizeof(struct wss_softc),
85 wss_isa_probe, wss_isa_attach, NULL, NULL);
86
87 /*
88 * Probe for the Microsoft Sound System hardware.
89 */
90 int
wss_isa_probe(device_t parent,cfdata_t match,void * aux)91 wss_isa_probe(device_t parent, cfdata_t match, void *aux)
92 {
93 struct isa_attach_args *ia;
94 struct wss_softc probesc, *sc;
95
96 ia = aux;
97 if (ia->ia_nio < 1)
98 return 0;
99 if (ia->ia_nirq < 1)
100 return 0;
101 if (ia->ia_ndrq < 1)
102 return 0;
103
104 if (ISA_DIRECT_CONFIG(ia))
105 return 0;
106
107 memset(&probesc, 0, sizeof probesc);
108 sc = &probesc;
109 if (wssfind(parent, match, sc, 1, aux)) {
110 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
111 ad1848_isa_unmap(&sc->sc_ad1848);
112 madunmap(sc);
113 return 1;
114 } else
115 /* Everything is already unmapped */
116 return 0;
117 }
118
119 static int
wssfind(device_t parent,cfdata_t match,struct wss_softc * sc,int probing,struct isa_attach_args * ia)120 wssfind(device_t parent, cfdata_t match, struct wss_softc *sc, int probing,
121 struct isa_attach_args *ia)
122 {
123 static u_char interrupt_bits[12] = {
124 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20
125 };
126 static u_char dma_bits[4] = {1, 2, 0, 3};
127 struct ad1848_softc *ac;
128 int ndrq, playdrq, recdrq;
129
130 ac = &sc->sc_ad1848.sc_ad1848;
131 sc->sc_iot = ia->ia_iot;
132 if (match->cf_flags & 1)
133 madprobe(sc, ia->ia_io[0].ir_addr);
134 else
135 sc->mad_chip_type = MAD_NONE;
136
137 #if 0
138 if (!WSS_BASE_VALID(ia->ia_io[0].ir_addr)) {
139 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase));
140 goto bad1;
141 }
142 #endif
143
144 /* Map the ports upto the AD1848 port */
145 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, WSS_CODEC,
146 0, &sc->sc_ioh))
147 goto bad1;
148
149 ac->sc_iot = sc->sc_iot;
150
151 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */
152 if (ad1848_isa_mapprobe(&sc->sc_ad1848,
153 ia->ia_io[0].ir_addr + WSS_CODEC) == 0)
154 goto bad;
155
156 #if 0
157 /* Setup WSS interrupt and DMA */
158 if (!WSS_DRQ_VALID(ia->ia_drq[0].ir_drq)) {
159 DPRINTF(("wss: configured DMA chan %d invalid\n",
160 ia->ia_drq[0].ir_drq));
161 goto bad;
162 }
163 #endif
164 sc->wss_playdrq = ia->ia_drq[0].ir_drq;
165 sc->wss_ic = ia->ia_ic;
166
167 if (sc->wss_playdrq != ISA_UNKNOWN_DRQ &&
168 !isa_drq_isfree(sc->wss_ic, sc->wss_playdrq))
169 goto bad;
170
171 #if 0
172 if (!WSS_IRQ_VALID(ia->ia_irq[0].ir_irq)) {
173 DPRINTF(("wss: configured interrupt %d invalid\n",
174 ia->ia_irq[0].ir_irq));
175 goto bad;
176 }
177 #endif
178
179 sc->wss_irq = ia->ia_irq[0].ir_irq;
180
181 playdrq = ia->ia_drq[0].ir_drq;
182 if (ia->ia_ndrq > 1) {
183 ndrq = 2;
184 recdrq = ia->ia_drq[1].ir_drq;
185 } else {
186 ndrq = 1;
187 recdrq = ISA_UNKNOWN_DRQ;
188 }
189
190 if (ac->mode <= 1)
191 ndrq = 1;
192 sc->wss_recdrq =
193 ac->mode > 1 && ndrq > 1 &&
194 recdrq != ISA_UNKNOWN_DRQ ? recdrq : playdrq;
195 if (sc->wss_recdrq != sc->wss_playdrq && !isa_drq_isfree(sc->wss_ic,
196 sc->wss_recdrq))
197 goto bad;
198
199 if (probing) {
200 ia->ia_nio = 1;
201 ia->ia_io[0].ir_size = WSS_NPORT;
202
203 ia->ia_nirq = 1;
204
205 ia->ia_ndrq = ndrq;
206 ia->ia_drq[0].ir_drq = playdrq;
207 if (ndrq > 1)
208 ia->ia_drq[1].ir_drq = recdrq;
209
210 ia->ia_niomem = 0;
211 }
212
213 /* XXX recdrq */
214 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG,
215 (interrupt_bits[ia->ia_irq[0].ir_irq] |
216 dma_bits[ia->ia_drq[0].ir_drq]));
217
218 return 1;
219
220 bad:
221 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
222 bad1:
223 madunmap(sc);
224 return 0;
225 }
226
227 /*
228 * Attach hardware to driver, attach hardware driver to audio
229 * pseudo-device driver .
230 */
231 void
wss_isa_attach(device_t parent,device_t self,void * aux)232 wss_isa_attach(device_t parent, device_t self, void *aux)
233 {
234 struct wss_softc *sc;
235 struct ad1848_softc *ac;
236 struct isa_attach_args *ia;
237
238 sc = device_private(self);
239 ac = &sc->sc_ad1848.sc_ad1848;
240 ac->sc_dev = self;
241 ia = aux;
242 if (!wssfind(parent, device_cfdata(self), sc, 0, ia)) {
243 aprint_error_dev(self, "wssfind failed\n");
244 return;
245 }
246
247 sc->wss_ic = ia->ia_ic;
248
249 wssattach(sc);
250 }
251
252 /*
253 * Copyright by Hannu Savolainen 1994
254 *
255 * Redistribution and use in source and binary forms, with or without
256 * modification, are permitted provided that the following conditions are
257 * met: 1. Redistributions of source code must retain the above copyright
258 * notice, this list of conditions and the following disclaimer. 2.
259 * Redistributions in binary form must reproduce the above copyright notice,
260 * this list of conditions and the following disclaimer in the documentation
261 * and/or other materials provided with the distribution.
262 *
263 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
264 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
265 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
266 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
267 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
268 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
269 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
270 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
271 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
272 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
273 * SUCH DAMAGE.
274 *
275 */
276
277 /*
278 * Initialization code for OPTi MAD16 compatible audio chips. Including
279 *
280 * OPTi 82C928 MAD16 (replaced by C929)
281 * OAK OTI-601D Mozart
282 * OPTi 82C929 MAD16 Pro
283 * OPTi 82C931
284 */
285
286 static int
detect_mad16(struct wss_softc * sc,int chip_type)287 detect_mad16(struct wss_softc *sc, int chip_type)
288 {
289 unsigned char tmp, tmp2;
290
291 sc->mad_chip_type = chip_type;
292 /*
293 * Check that reading a register doesn't return bus float (0xff)
294 * when the card is accessed using password. This may fail in case
295 * the card is in low power mode. Normally at least the power saving mode
296 * bit should be 0.
297 */
298 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) {
299 DPRINTF(("MC1_PORT returned 0xff\n"));
300 return 0;
301 }
302
303 /*
304 * Now check that the gate is closed on first I/O after writing
305 * the password. (This is how a MAD16 compatible card works).
306 */
307 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) {
308 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
309 return 0;
310 }
311
312 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */
313
314 /* Compare the bit */
315 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) {
316 mad_write(sc, MC1_PORT, tmp); /* Restore */
317 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
318 return 0;
319 }
320
321 mad_write(sc, MC1_PORT, tmp); /* Restore */
322 return 1;
323 }
324
325 static void
madprobe(struct wss_softc * sc,int iobase)326 madprobe(struct wss_softc *sc, int iobase)
327 {
328 static int valid_ports[M_WSS_NPORTS] =
329 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 };
330 int i;
331
332 /* Allocate bus space that the MAD chip wants */
333 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh))
334 goto bad0;
335 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1))
336 goto bad1;
337 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2))
338 goto bad2;
339 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->sc_opl_ioh))
340 goto bad3;
341
342 DPRINTF(("mad: Detect using password = 0xE2\n"));
343 if (!detect_mad16(sc, MAD_82C928)) {
344 /* No luck. Try different model */
345 DPRINTF(("mad: Detect using password = 0xE3\n"));
346 if (!detect_mad16(sc, MAD_82C929))
347 goto bad;
348 sc->mad_chip_type = MAD_82C929;
349 DPRINTF(("mad: 82C929 detected\n"));
350 } else {
351 sc->mad_chip_type = MAD_82C928;
352 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) {
353 DPRINTF(("mad: Mozart detected\n"));
354 sc->mad_chip_type = MAD_OTI601D;
355 } else {
356 DPRINTF(("mad: 82C928 detected?\n"));
357 sc->mad_chip_type = MAD_82C928;
358 }
359 }
360
361 #ifdef AUDIO_DEBUG
362 if (wssdebug)
363 for (i = MC1_PORT; i <= MC7_PORT; i++)
364 printf("mad: port %03x = %02x\n", i, mad_read(sc, i));
365 #endif
366
367 /* Set the WSS address. */
368 for (i = 0; i < M_WSS_NPORTS; i++)
369 if (valid_ports[i] == iobase)
370 break;
371 if (i >= M_WSS_NPORTS) { /* Not a valid port */
372 printf("mad: Bad WSS base address 0x%x\n", iobase);
373 goto bad;
374 }
375 sc->mad_ioindex = i;
376 /* enable WSS emulation at the I/O port, no joystick */
377 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE);
378 mad_write(sc, MC2_PORT, 0x03); /* ? */
379 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */
380 return;
381
382 bad:
383 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3);
384 bad3:
385 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
386 bad2:
387 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
388 bad1:
389 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
390 bad0:
391 sc->mad_chip_type = MAD_NONE;
392 }
393
394 static void
madunmap(struct wss_softc * sc)395 madunmap(struct wss_softc *sc)
396 {
397
398 if (sc->mad_chip_type == MAD_NONE)
399 return;
400 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
401 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
402 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
403 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3);
404 }
405