1 /* $OpenBSD: pas.c,v 1.37 2022/11/02 10:41:34 kn Exp $ */
2 /* $NetBSD: pas.c,v 1.37 1998/01/12 09:43:43 thorpej Exp $ */
3
4 /*
5 * Copyright (c) 1991-1993 Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the Computer Systems
19 * Engineering Group at Lawrence Berkeley Laboratory.
20 * 4. Neither the name of the University nor of the Laboratory may be used
21 * to endorse or promote products derived from this software without
22 * specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 */
37 /*
38 * jfw 7/13/97 - The soundblaster code requires the generic bus-space
39 * structures to be set up properly. Rather than go to the effort of making
40 * code for a dead line fully generic, properly set up the SB structures and
41 * leave the rest x86/ISA/default-configuration specific. If you have a
42 * REAL computer, go buy a REAL sound card.
43 */
44 /*
45 * Todo:
46 * - look at other PAS drivers (for PAS native support)
47 * - use common sb.c once emulation is setup
48 */
49
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/errno.h>
53 #include <sys/ioctl.h>
54 #include <sys/syslog.h>
55 #include <sys/device.h>
56
57 #include <machine/cpu.h>
58 #include <machine/intr.h>
59 #include <machine/bus.h>
60
61 #include <sys/audioio.h>
62 #include <dev/audio_if.h>
63 #include <dev/midi_if.h>
64
65 #include <dev/isa/isavar.h>
66 #include <dev/isa/isadmavar.h>
67
68 #include <dev/isa/sbdspvar.h>
69 #include <dev/isa/sbreg.h>
70
71 #define DEFINE_TRANSLATIONS
72 #include <dev/isa/pasreg.h>
73
74 #ifdef AUDIO_DEBUG
75 #define DPRINTF(x) if (pasdebug) printf x
76 int pasdebug = 0;
77 #else
78 #define DPRINTF(x)
79 #endif
80
81 /*
82 * Software state, per SoundBlaster card.
83 * The soundblaster has multiple functionality, which we must demultiplex.
84 * One approach is to have one major device number for the soundblaster card,
85 * and use different minor numbers to indicate which hardware function
86 * we want. This would make for one large driver. Instead our approach
87 * is to partition the design into a set of drivers that share an underlying
88 * piece of hardware. Most things are hard to share, for example, the audio
89 * and midi ports. For audio, we might want to mix two processes' signals,
90 * and for midi we might want to merge streams (this is hard due to
91 * running status). Moreover, we should be able to re-use the high-level
92 * modules with other kinds of hardware. In this module, we only handle the
93 * most basic communications with the sb card.
94 */
95 struct pas_softc {
96 struct sbdsp_softc sc_sbdsp; /* use sc_dev, sc_id, sc_ih,
97 * sc_iobase, sc_irq, sc_drq
98 * from here */
99 int model; /* unique to PAS */
100 int rev;
101
102 };
103
104 void pasconf(int, int, int, int);
105
106
107 /*
108 * Define our interface to the higher level audio driver.
109 */
110
111 const struct audio_hw_if pas_hw_if = {
112 .open = sbdsp_open,
113 .close = sbdsp_close,
114 .set_params = sbdsp_set_params,
115 .round_blocksize = sbdsp_round_blocksize,
116 .halt_output = sbdsp_haltdma,
117 .halt_input = sbdsp_haltdma,
118 .set_port = sbdsp_mixer_set_port,
119 .get_port = sbdsp_mixer_get_port,
120 .query_devinfo = sbdsp_mixer_query_devinfo,
121 .allocm = sb_malloc,
122 .freem = sb_free,
123 .round_buffersize = sb_round,
124 .trigger_output = sbdsp_trigger_output,
125 .trigger_input = sbdsp_trigger_input,
126 };
127
128 /* The Address Translation code is used to convert I/O register addresses to
129 be relative to the given base -register */
130
131 static const char *pasnames[] = {
132 "",
133 "Plus",
134 "CDPC",
135 "16",
136 "16Basic"
137 };
138
139 /*XXX assume default I/O base address */
140 #define pasread(p) inb(p)
141 #define paswrite(d, p) outb(p, d)
142
143 void
pasconf(int model,int sbbase,int sbirq,int sbdrq)144 pasconf(int model, int sbbase, int sbirq, int sbdrq)
145 {
146 paswrite(0x00, INTERRUPT_MASK);
147 /* Local timer control register */
148 paswrite(0x36, SAMPLE_COUNTER_CONTROL);
149 /* Sample rate timer (16 bit) */
150 paswrite(0x36, SAMPLE_RATE_TIMER);
151 paswrite(0, SAMPLE_RATE_TIMER);
152 /* Local timer control register */
153 paswrite(0x74, SAMPLE_COUNTER_CONTROL);
154 /* Sample count register (16 bit) */
155 paswrite(0x74, SAMPLE_BUFFER_COUNTER);
156 paswrite(0, SAMPLE_BUFFER_COUNTER);
157
158 paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE |
159 P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R,
160 PCM_CONTROL);
161 paswrite(S_M_PCM_RESET | S_M_FM_RESET |
162 S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER);
163
164 /*XXX*/
165 paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1);
166
167 paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2);
168 paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3);
169
170 #ifdef BROKEN_BUS_CLOCK
171 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND |
172 S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1);
173 #else
174 paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND,
175 SYSTEM_CONFIGURATION_1);
176 #endif
177
178 /*XXX*/
179 paswrite(0, SYSTEM_CONFIGURATION_2);
180 paswrite(0, SYSTEM_CONFIGURATION_3);
181
182 /* Sets mute off and selects filter rate of 17.897 kHz */
183 paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY);
184
185 if (model == PAS_16 || model == PAS_16BASIC)
186 paswrite(8, PRESCALE_DIVIDER);
187 else
188 paswrite(0, PRESCALE_DIVIDER);
189
190 paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER);
191 paswrite(5, PARALLEL_MIXER);
192
193 /*
194 * Setup SoundBlaster emulation.
195 */
196 paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS);
197 paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq],
198 EMULATION_CONFIGURATION);
199 paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE);
200
201 /*
202 * Set mid-range levels.
203 */
204 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
205 paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER);
206
207 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER);
208 paswrite(50, PARALLEL_MIXER);
209 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER);
210 paswrite(50, PARALLEL_MIXER);
211
212 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER);
213 paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER);
214
215 paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER);
216 paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER);
217 }
218
219 int pasprobe(struct device *, void *, void *);
220 void pasattach(struct device *, struct device *, void *);
221
222 const struct cfattach pas_ca = {
223 sizeof(struct pas_softc), pasprobe, pasattach
224 };
225
226 struct cfdriver pas_cd = {
227 NULL, "pas", DV_DULL
228 };
229
230 /*
231 * Probe / attach routines.
232 */
233
234 /*
235 * Probe for the soundblaster hardware.
236 */
237 int
pasprobe(struct device * parent,void * match,void * aux)238 pasprobe(struct device *parent, void *match, void *aux)
239 {
240 struct pas_softc *sc = match;
241 struct isa_attach_args *ia = aux;
242 int iobase;
243 u_char id, t;
244
245 /* ensure we can set this up as a sound blaster */
246 if (!SB_BASE_VALID(ia->ia_iobase)) {
247 DPRINTF(("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase));
248 return 0;
249 }
250
251 /*
252 * WARNING: Setting an option like W:1 or so that disables
253 * warm boot reset of the card will screw up this detect code
254 * something fierce. Adding code to handle this means possibly
255 * interfering with other cards on the bus if you have something
256 * on base port 0x388. SO be forewarned.
257 */
258 /* Talk to first board */
259 outb(MASTER_DECODE, 0xbc);
260 /* Set base address */
261
262 #if 0
263 /* XXX Need to setup pseudo device */
264 /* XXX What are good io addrs ? */
265 if (iobase != PAS_DEFAULT_BASE) {
266 DPRINTF(("pas: configured iobase %d invalid\n", iobase));
267 return 0;
268 }
269 #else
270 /* Start out talking to native PAS */
271 iobase = PAS_DEFAULT_BASE;
272 #endif
273
274 outb(MASTER_DECODE, iobase >> 2);
275 /* One wait-state */
276 paswrite(1, WAIT_STATE);
277
278 id = pasread(INTERRUPT_MASK);
279 if (id == 0xff || id == 0xfe) {
280 /* sanity */
281 DPRINTF(("pas: bogus card id\n"));
282 return 0;
283 }
284 /*
285 * We probably have a PAS-series board, now check for a
286 * PAS2-series board by trying to change the board revision
287 * bits. PAS2-series hardware won't let you do this because
288 * the bits are read-only.
289 */
290 t = id ^ 0xe0;
291 paswrite(t, INTERRUPT_MASK);
292 t = inb(INTERRUPT_MASK);
293 paswrite(id, INTERRUPT_MASK);
294
295 if (t != id) {
296 /* Not a PAS2 */
297 DPRINTF(("pas: detected card but PAS2 test failed\n"));
298 return 0;
299 }
300 /*XXX*/
301 t = pasread(OPERATION_MODE_1) & 0xf;
302 sc->model = O_M_1_to_card[t];
303 if (sc->model != 0) {
304 sc->rev = pasread(BOARD_REV_ID);
305 }
306 else {
307 DPRINTF(("pas: bogus model id\n"));
308 return 0;
309 }
310
311 if (sc->model >= 0) {
312 if (ia->ia_irq == IRQUNK) {
313 DPRINTF(("pas: sb emulation requires known irq\n"));
314 return (0);
315 }
316 pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1);
317 } else {
318 DPRINTF(("pas: could not probe pas\n"));
319 return (0);
320 }
321
322 /* Now a SoundBlaster, so set up proper bus-space hooks
323 * appropriately
324 */
325
326 sc->sc_sbdsp.sc_iobase = ia->ia_iobase;
327 sc->sc_sbdsp.sc_iot = ia->ia_iot;
328
329 /* Map i/o space [we map 24 ports which is the max of the sb and pro */
330 if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0,
331 &sc->sc_sbdsp.sc_ioh)) {
332 DPRINTF(("pas: can't map i/o space 0x%x/%d in probe\n",
333 ia->ia_iobase, SBP_NPORT));
334 return 0;
335 }
336
337 if (sbdsp_reset(&sc->sc_sbdsp) < 0) {
338 DPRINTF(("pas: couldn't reset card\n"));
339 goto unmap;
340 }
341
342 /*
343 * Cannot auto-discover DMA channel.
344 */
345 if (!SB_DRQ_VALID(ia->ia_drq)) {
346 DPRINTF(("pas: configured dma chan %d invalid\n", ia->ia_drq));
347 goto unmap;
348 }
349 if (!SB_IRQ_VALID(ia->ia_irq)) {
350 DPRINTF(("pas: configured irq chan %d invalid\n", ia->ia_irq));
351 goto unmap;
352 }
353
354 sc->sc_sbdsp.sc_irq = ia->ia_irq;
355 sc->sc_sbdsp.sc_drq8 = ia->ia_drq;
356 sc->sc_sbdsp.sc_drq16 = -1; /* XXX */
357 sc->sc_sbdsp.sc_ic = ia->ia_ic;
358
359 if (sbdsp_probe(&sc->sc_sbdsp) == 0) {
360 DPRINTF(("pas: sbdsp probe failed\n"));
361 goto unmap;
362 }
363
364 ia->ia_iosize = SB_NPORT;
365 return 1;
366
367 unmap:
368 bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT);
369 return 0;
370 }
371
372 /*
373 * Attach hardware to driver, attach hardware driver to audio
374 * pseudo-device driver .
375 */
376 void
pasattach(struct device * parent,struct device * self,void * aux)377 pasattach(struct device *parent, struct device *self, void *aux)
378 {
379 struct pas_softc *sc = (struct pas_softc *)self;
380 struct isa_attach_args *ia = (struct isa_attach_args *)aux;
381 int iobase = ia->ia_iobase;
382
383 sc->sc_sbdsp.sc_isa = parent;
384 sc->sc_sbdsp.sc_iobase = iobase;
385 sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
386 IST_EDGE, IPL_AUDIO | IPL_MPSAFE,
387 sbdsp_intr, &sc->sc_sbdsp, sc->sc_sbdsp.sc_dev.dv_xname);
388
389 printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model], sc->rev);
390
391 sbdsp_attach(&sc->sc_sbdsp);
392
393 audio_attach_mi(&pas_hw_if, &sc->sc_sbdsp, NULL, &sc->sc_sbdsp.sc_dev);
394 }
395