1 /* $OpenBSD: wss_isa.c,v 1.4 2002/03/14 01:26:57 millert Exp $ */
2 /* $NetBSD: wss_isa.c,v 1.1 1998/01/19 22:18:24 augustss Exp $ */
3
4 /*
5 * Copyright (c) 1994 John Brezak
6 * Copyright (c) 1991-1993 Regents of the University of California.
7 * All rights reserved.
8 *
9 * MAD support:
10 * Copyright (c) 1996 Lennart Augustsson
11 * Based on code which is
12 * Copyright (c) 1994 Hannu Savolainen
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the Computer Systems
25 * Engineering Group at Lawrence Berkeley Laboratory.
26 * 4. Neither the name of the University nor of the Laboratory may be used
27 * to endorse or promote products derived from this software without
28 * specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * SUCH DAMAGE.
41 *
42 */
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/errno.h>
46 #include <sys/ioctl.h>
47 #include <sys/syslog.h>
48 #include <sys/device.h>
49 #include <sys/proc.h>
50 #include <sys/buf.h>
51
52 #include <machine/cpu.h>
53 #include <machine/intr.h>
54 #include <machine/bus.h>
55
56 #include <sys/audioio.h>
57 #include <dev/audio_if.h>
58
59 #include <dev/isa/isavar.h>
60 #include <dev/isa/isadmavar.h>
61
62 #include <dev/ic/ad1848reg.h>
63 #include <dev/isa/ad1848var.h>
64 #include <dev/isa/wssreg.h>
65 #include <dev/isa/wssvar.h>
66 #include <dev/isa/madreg.h>
67
68 #ifdef AUDIO_DEBUG
69 #define DPRINTF(x) if (wssdebug) printf x
70 extern int wssdebug;
71 #else
72 #define DPRINTF(x)
73 #endif
74
75 static int wssfind(struct device *, struct wss_softc *, 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(struct device *, void *, void *);
82 void wss_isa_attach(struct device *, struct device *, void *);
83
84 struct cfattach wss_isa_ca = {
85 sizeof(struct wss_softc), wss_isa_probe, wss_isa_attach
86 };
87
88 struct cfdriver wss_cd = {
89 NULL, "wss", DV_DULL
90 };
91
92 /*
93 * Probe for the Microsoft Sound System hardware.
94 */
95 int
wss_isa_probe(parent,match,aux)96 wss_isa_probe(parent, match, aux)
97 struct device *parent;
98 #define __BROKEN_INDIRECT_CONFIG
99 #ifdef __BROKEN_INDIRECT_CONFIG
100 void *match;
101 #else
102 struct cfdata *match;
103 #endif
104 void *aux;
105 {
106 struct wss_softc probesc, *sc = &probesc;
107
108 bzero(sc, sizeof *sc);
109 #ifdef __BROKEN_INDIRECT_CONFIG
110 sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata;
111 #else
112 sc->sc_dev.dv_cfdata = match;
113 #endif
114 if (wssfind(parent, sc, aux)) {
115 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
116 ad1848_unmap(&sc->sc_ad1848);
117 madunmap(sc);
118 return 1;
119 } else
120 /* Everything is already unmapped */
121 return 0;
122 }
123
124 static int
wssfind(parent,sc,ia)125 wssfind(parent, sc, ia)
126 struct device *parent;
127 struct wss_softc *sc;
128 struct isa_attach_args *ia;
129 {
130 static u_char interrupt_bits[12] = {
131 -1, -1, -1, -1, -1, 0x0, -1, 0x08, -1, 0x10, 0x18, 0x20
132 };
133 static u_char dma_bits[4] = {1, 2, 0, 3};
134
135 sc->sc_iot = ia->ia_iot;
136 if (sc->sc_dev.dv_cfdata->cf_flags & 1)
137 madprobe(sc, ia->ia_iobase);
138 else
139 sc->mad_chip_type = MAD_NONE;
140
141 if (!WSS_BASE_VALID(ia->ia_iobase)) {
142 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase));
143 goto bad1;
144 }
145
146 /* Map the ports upto the AD1848 port */
147 if (bus_space_map(sc->sc_iot, ia->ia_iobase, WSS_CODEC, 0, &sc->sc_ioh))
148 goto bad1;
149
150 sc->sc_ad1848.sc_iot = sc->sc_iot;
151
152 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */
153 if (ad1848_mapprobe(&sc->sc_ad1848, ia->ia_iobase + WSS_CODEC) == 0)
154 goto bad;
155
156 ia->ia_iosize = WSS_NPORT;
157
158 /* Setup WSS interrupt and DMA */
159 if (!WSS_DRQ_VALID(ia->ia_drq)) {
160 DPRINTF(("wss: configured dma chan %d invalid\n", ia->ia_drq));
161 goto bad;
162 }
163 sc->wss_drq = ia->ia_drq;
164
165 if (sc->wss_drq != DRQUNK && !isa_drq_isfree(parent, sc->wss_drq))
166 goto bad;
167
168 if (!WSS_IRQ_VALID(ia->ia_irq)) {
169 DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq));
170 goto bad;
171 }
172
173 sc->wss_irq = ia->ia_irq;
174
175 if (sc->sc_ad1848.mode <= 1)
176 ia->ia_drq2 = DRQUNK;
177 sc->wss_recdrq =
178 sc->sc_ad1848.mode > 1 && ia->ia_drq2 != DRQUNK ?
179 ia->ia_drq2 : ia->ia_drq;
180 if (sc->wss_recdrq != sc->wss_drq && !isa_drq_isfree(parent, sc->wss_recdrq))
181 goto bad;
182
183 /* XXX recdrq */
184 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG,
185 (interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq]));
186
187 return 1;
188
189 bad:
190 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC);
191 bad1:
192 madunmap(sc);
193 return 0;
194 }
195
196 /*
197 * Attach hardware to driver, attach hardware driver to audio
198 * pseudo-device driver .
199 */
200 void
wss_isa_attach(parent,self,aux)201 wss_isa_attach(parent, self, aux)
202 struct device *parent, *self;
203 void *aux;
204 {
205 struct wss_softc *sc = (struct wss_softc *)self;
206 struct isa_attach_args *ia = (struct isa_attach_args *)aux;
207
208 if (!wssfind(parent, sc, ia)) {
209 printf("%s: wssfind failed\n", sc->sc_dev.dv_xname);
210 return;
211 }
212
213 sc->sc_ic = ia->ia_ic;
214 sc->sc_ad1848.sc_isa = parent;
215
216 wssattach(sc);
217 }
218
219 /*
220 * Copyright by Hannu Savolainen 1994
221 *
222 * Redistribution and use in source and binary forms, with or without
223 * modification, are permitted provided that the following conditions are
224 * met: 1. Redistributions of source code must retain the above copyright
225 * notice, this list of conditions and the following disclaimer. 2.
226 * Redistributions in binary form must reproduce the above copyright notice,
227 * this list of conditions and the following disclaimer in the documentation
228 * and/or other materials provided with the distribution.
229 *
230 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
231 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
232 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
233 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
234 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
235 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
236 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
237 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
238 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
239 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
240 * SUCH DAMAGE.
241 *
242 */
243
244 /*
245 * Initialization code for OPTi MAD16 compatible audio chips. Including
246 *
247 * OPTi 82C928 MAD16 (replaced by C929)
248 * OAK OTI-601D Mozart
249 * OPTi 82C929 MAD16 Pro
250 * OPTi 82C931
251 */
252
253 static int
detect_mad16(sc,chip_type)254 detect_mad16(sc, chip_type)
255 struct wss_softc *sc;
256 int chip_type;
257 {
258 unsigned char tmp, tmp2;
259
260 sc->mad_chip_type = chip_type;
261 /*
262 * Check that reading a register doesn't return bus float (0xff)
263 * when the card is accessed using password. This may fail in case
264 * the card is in low power mode. Normally at least the power saving mode
265 * bit should be 0.
266 */
267 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) {
268 DPRINTF(("MC1_PORT returned 0xff\n"));
269 return 0;
270 }
271
272 /*
273 * Now check that the gate is closed on first I/O after writing
274 * the password. (This is how a MAD16 compatible card works).
275 */
276 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) {
277 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2));
278 return 0;
279 }
280
281 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */
282
283 /* Compare the bit */
284 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) {
285 mad_write(sc, MC1_PORT, tmp); /* Restore */
286 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2));
287 return 0;
288 }
289
290 mad_write(sc, MC1_PORT, tmp); /* Restore */
291 return 1;
292 }
293
294 static void
madprobe(sc,iobase)295 madprobe(sc, iobase)
296 struct wss_softc *sc;
297 int iobase;
298 {
299 static int valid_ports[M_WSS_NPORTS] =
300 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 };
301 int i;
302
303 /* Allocate bus space that the MAD chip wants */
304 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh))
305 goto bad0;
306 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1))
307 goto bad1;
308 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2))
309 goto bad2;
310 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->mad_ioh3))
311 goto bad3;
312
313 DPRINTF(("mad: Detect using password = 0xE2\n"));
314 if (!detect_mad16(sc, MAD_82C928)) {
315 /* No luck. Try different model */
316 DPRINTF(("mad: Detect using password = 0xE3\n"));
317 if (!detect_mad16(sc, MAD_82C929))
318 goto bad;
319 sc->mad_chip_type = MAD_82C929;
320 DPRINTF(("mad: 82C929 detected\n"));
321 } else {
322 sc->mad_chip_type = MAD_82C928;
323 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) {
324 DPRINTF(("mad: Mozart detected\n"));
325 sc->mad_chip_type = MAD_OTI601D;
326 } else {
327 DPRINTF(("mad: 82C928 detected?\n"));
328 sc->mad_chip_type = MAD_82C928;
329 }
330 }
331
332 #ifdef AUDIO_DEBUG
333 if (wssdebug)
334 for (i = MC1_PORT; i <= MC7_PORT; i++)
335 printf("mad: port %03x = %02x\n", i, mad_read(sc, i));
336 #endif
337
338 /* Set the WSS address. */
339 for (i = 0; i < M_WSS_NPORTS; i++)
340 if (valid_ports[i] == iobase)
341 break;
342 if (i >= M_WSS_NPORTS) { /* Not a valid port */
343 printf("mad: Bad WSS base address 0x%x\n", iobase);
344 goto bad;
345 }
346 sc->mad_ioindex = i;
347 /* enable WSS emulation at the I/O port, no joystick */
348 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE);
349 mad_write(sc, MC2_PORT, 0x03); /* ? */
350 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */
351 return;
352
353 bad:
354 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3);
355 bad3:
356 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
357 bad2:
358 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
359 bad1:
360 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
361 bad0:
362 sc->mad_chip_type = MAD_NONE;
363 }
364
365 static void
madunmap(sc)366 madunmap(sc)
367 struct wss_softc *sc;
368 {
369 if (sc->mad_chip_type == MAD_NONE)
370 return;
371 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT);
372 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1);
373 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2);
374 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3);
375 }
376