Annotation of src/sys/dev/isa/pas.c, Revision 1.29
1.29 ! augustss 1: /* $NetBSD: pas.c,v 1.28 1997/07/25 01:42:20 augustss Exp $ */
1.1 brezak 2:
3: /*
4: * Copyright (c) 1991-1993 Regents of the University of California.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the Computer Systems
18: * Engineering Group at Lawrence Berkeley Laboratory.
19: * 4. Neither the name of the University nor of the Laboratory may be used
20: * to endorse or promote products derived from this software without
21: * specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: *
35: */
36: /*
1.28 augustss 37: * jfw 7/13/97 - The soundblaster code requires the generic bus-space
38: * structures to be set up properly. Rather than go to the effort of making
39: * code for a dead line fully generic, properly set up the SB structures and
40: * leave the rest x86/ISA/default-configuration specific. If you have a
41: * REAL computer, go buy a REAL sound card.
42: */
43: /*
1.1 brezak 44: * Todo:
45: * - look at other PAS drivers (for PAS native suport)
46: * - use common sb.c once emulation is setup
47: */
48:
49: #include <sys/param.h>
50: #include <sys/systm.h>
51: #include <sys/errno.h>
52: #include <sys/ioctl.h>
53: #include <sys/syslog.h>
54: #include <sys/device.h>
55: #include <sys/proc.h>
56:
57: #include <machine/cpu.h>
1.17 mycroft 58: #include <machine/intr.h>
1.27 thorpej 59: #include <machine/bus.h>
1.1 brezak 60: #include <machine/pio.h>
61:
62: #include <sys/audioio.h>
63: #include <dev/audio_if.h>
64:
1.5 cgd 65: #include <dev/isa/isavar.h>
66: #include <dev/isa/isadmavar.h>
1.1 brezak 67:
1.6 cgd 68: #include <dev/isa/sbdspvar.h>
69: #include <dev/isa/sbreg.h>
1.1 brezak 70:
71: #define DEFINE_TRANSLATIONS
1.6 cgd 72: #include <dev/isa/pasreg.h>
1.1 brezak 73:
1.8 brezak 74: #ifdef AUDIO_DEBUG
1.19 christos 75: #define DPRINTF(x) if (pasdebug) printf x
1.1 brezak 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 {
1.20 mikel 96: struct sbdsp_softc sc_sbdsp; /* base device, &c. */
1.1 brezak 97:
98: int model;
99: int rev;
100: };
101:
102: int pasopen __P((dev_t, int));
1.4 mycroft 103: int pas_getdev __P((void *, struct audio_device *));
1.16 christos 104: void pasconf __P((int, int, int, int));
1.1 brezak 105:
106:
107: /*
108: * Define our interface to the higher level audio driver.
109: */
110:
111: struct audio_hw_if pas_hw_if = {
112: pasopen,
113: sbdsp_close,
114: NULL,
115: sbdsp_query_encoding,
1.26 augustss 116: sbdsp_set_params,
1.1 brezak 117: sbdsp_round_blocksize,
118: sbdsp_set_out_port,
119: sbdsp_get_out_port,
120: sbdsp_set_in_port,
121: sbdsp_get_in_port,
122: sbdsp_commit_settings,
1.29 ! augustss 123: NULL,
! 124: NULL,
1.1 brezak 125: sbdsp_dma_output,
126: sbdsp_dma_input,
127: sbdsp_haltdma,
128: sbdsp_haltdma,
129: sbdsp_contdma,
130: sbdsp_contdma,
131: sbdsp_speaker_ctl,
132: pas_getdev,
133: sbdsp_setfd,
134: sbdsp_mixer_set_port,
135: sbdsp_mixer_get_port,
136: sbdsp_mixer_query_devinfo,
1.29 ! augustss 137: sb_malloc,
! 138: sb_free,
! 139: sb_round,
! 140: 0,
1.1 brezak 141: 0
142: };
143:
144: /* The Address Translation code is used to convert I/O register addresses to
145: be relative to the given base -register */
146:
147: static char *pasnames[] = {
148: "",
149: "Plus",
150: "CDPC",
1.3 brezak 151: "16",
152: "16Basic"
1.1 brezak 153: };
154:
155: static struct audio_device pas_device = {
156: "PAS,??",
157: "",
158: "pas"
159: };
160:
161: /*XXX assume default I/O base address */
162: #define pasread(p) inb(p)
163: #define paswrite(d, p) outb(p, d)
164:
165: void
1.16 christos 166: pasconf(model, sbbase, sbirq, sbdrq)
167: int model;
168: int sbbase;
169: int sbirq;
170: int sbdrq;
1.1 brezak 171: {
172: paswrite(0x00, INTERRUPT_MASK);
173: /* Local timer control register */
174: paswrite(0x36, SAMPLE_COUNTER_CONTROL);
175: /* Sample rate timer (16 bit) */
176: paswrite(0x36, SAMPLE_RATE_TIMER);
177: paswrite(0, SAMPLE_RATE_TIMER);
178: /* Local timer control register */
179: paswrite(0x74, SAMPLE_COUNTER_CONTROL);
180: /* Sample count register (16 bit) */
181: paswrite(0x74, SAMPLE_BUFFER_COUNTER);
182: paswrite(0, SAMPLE_BUFFER_COUNTER);
183:
184: paswrite(P_C_PCM_MONO | P_C_PCM_DAC_MODE |
185: P_C_MIXER_CROSS_L_TO_L | P_C_MIXER_CROSS_R_TO_R,
186: PCM_CONTROL);
187: paswrite(S_M_PCM_RESET | S_M_FM_RESET |
188: S_M_SB_RESET | S_M_MIXER_RESET, SERIAL_MIXER);
189:
190: /*XXX*/
191: paswrite(I_C_1_BOOT_RESET_ENABLE|1, IO_CONFIGURATION_1);
192:
193: paswrite(I_C_2_PCM_DMA_DISABLED, IO_CONFIGURATION_2);
194: paswrite(I_C_3_PCM_IRQ_DISABLED, IO_CONFIGURATION_3);
195:
196: #ifdef BROKEN_BUS_CLOCK
197: paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND |
198: S_C_1_FM_EMULATE_CLOCK, SYSTEM_CONFIGURATION_1);
199: #else
200: paswrite(S_C_1_PCS_ENABLE | S_C_1_PCS_STEREO | S_C_1_PCS_REALSOUND,
201: SYSTEM_CONFIGURATION_1);
202: #endif
203:
204: /*XXX*/
205: paswrite(0, SYSTEM_CONFIGURATION_2);
206: paswrite(0, SYSTEM_CONFIGURATION_3);
207:
208: /* Sets mute off and selects filter rate of 17.897 kHz */
209: paswrite(F_F_MIXER_UNMUTE | 0x01, FILTER_FREQUENCY);
210:
1.3 brezak 211: if (model == PAS_16 || model == PAS_16BASIC)
1.1 brezak 212: paswrite(8, PRESCALE_DIVIDER);
213: else
214: paswrite(0, PRESCALE_DIVIDER);
215:
216: paswrite(P_M_MV508_ADDRESS | P_M_MV508_PCM, PARALLEL_MIXER);
217: paswrite(5, PARALLEL_MIXER);
218:
219: /*
220: * Setup SoundBlaster emulation.
221: */
222: paswrite((sbbase >> 4) & 0xf, EMULATION_ADDRESS);
223: paswrite(E_C_SB_IRQ_translate[sbirq] | E_C_SB_DMA_translate[sbdrq],
224: EMULATION_CONFIGURATION);
225: paswrite(C_E_SB_ENABLE, COMPATIBILITY_ENABLE);
226:
227: /*
228: * Set mid-range levels.
229: */
230: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MODE, PARALLEL_MIXER);
231: paswrite(P_M_MV508_LOUDNESS | P_M_MV508_ENHANCE_NONE, PARALLEL_MIXER);
232:
233: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_A, PARALLEL_MIXER);
234: paswrite(50, PARALLEL_MIXER);
235: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MASTER_B, PARALLEL_MIXER);
236: paswrite(50, PARALLEL_MIXER);
237:
238: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_SB, PARALLEL_MIXER);
239: paswrite(P_M_MV508_OUTPUTMIX | 30, PARALLEL_MIXER);
240:
241: paswrite(P_M_MV508_ADDRESS | P_M_MV508_MIXER | P_M_MV508_MIC, PARALLEL_MIXER);
242: paswrite(P_M_MV508_INPUTMIX | 30, PARALLEL_MIXER);
243: }
244:
1.12 mycroft 245: int pasprobe __P((struct device *, void *, void *));
246: void pasattach __P((struct device *, struct device *, void *));
247:
1.14 thorpej 248: struct cfattach pas_ca = {
249: sizeof(struct pas_softc), pasprobe, pasattach
250: };
251:
252: struct cfdriver pas_cd = {
253: NULL, "pas", DV_DULL
1.1 brezak 254: };
255:
256: /*
257: * Probe / attach routines.
258: */
259:
260: /*
261: * Probe for the soundblaster hardware.
262: */
263: int
1.12 mycroft 264: pasprobe(parent, match, aux)
265: struct device *parent;
266: void *match, *aux;
1.1 brezak 267: {
1.12 mycroft 268: register struct pas_softc *sc = match;
1.1 brezak 269: register struct isa_attach_args *ia = aux;
1.10 mycroft 270: register int iobase;
1.1 brezak 271: u_char id, t;
272:
1.28 augustss 273: /* ensure we can set this up as a sound blaster */
274: if (!SB_BASE_VALID(ia->ia_iobase)) {
275: printf("pas: configured SB iobase 0x%x invalid\n", ia->ia_iobase);
276: return 0;
277: }
278:
1.1 brezak 279: /*
280: * WARNING: Setting an option like W:1 or so that disables
281: * warm boot reset of the card will screw up this detect code
282: * something fierce. Adding code to handle this means possibly
283: * interfering with other cards on the bus if you have something
284: * on base port 0x388. SO be forewarned.
285: */
286: /* Talk to first board */
287: outb(MASTER_DECODE, 0xbc);
288: /* Set base address */
289:
290: #if 0
291: /* XXX Need to setup pseudo device */
292: /* XXX What are good io addrs ? */
293: if (iobase != PAS_DEFAULT_BASE) {
1.19 christos 294: printf("pas: configured iobase %d invalid\n", iobase);
1.1 brezak 295: return 0;
296: }
297: #else
298: /* Start out talking to native PAS */
299: iobase = PAS_DEFAULT_BASE;
300: #endif
301:
302: outb(MASTER_DECODE, iobase >> 2);
303: /* One wait-state */
304: paswrite(1, WAIT_STATE);
305:
306: id = pasread(INTERRUPT_MASK);
307: if (id == 0xff || id == 0xfe) {
308: /* sanity */
309: DPRINTF(("pas: bogus card id\n"));
310: return 0;
311: }
312: /*
313: * We probably have a PAS-series board, now check for a
314: * PAS2-series board by trying to change the board revision
315: * bits. PAS2-series hardware won't let you do this because
316: * the bits are read-only.
317: */
318: t = id ^ 0xe0;
319: paswrite(t, INTERRUPT_MASK);
320: t = inb(INTERRUPT_MASK);
321: paswrite(id, INTERRUPT_MASK);
322:
323: if (t != id) {
324: /* Not a PAS2 */
1.19 christos 325: printf("pas: detected card but PAS2 test failed\n");
1.1 brezak 326: return 0;
327: }
328: /*XXX*/
329: t = pasread(OPERATION_MODE_1) & 0xf;
330: sc->model = O_M_1_to_card[t];
331: if (sc->model != 0) {
332: sc->rev = pasread(BOARD_REV_ID);
333: }
334: else {
335: DPRINTF(("pas: bogus model id\n"));
336: return 0;
337: }
338:
339: if (sc->model >= 0) {
1.10 mycroft 340: if (ia->ia_irq == IRQUNK) {
1.19 christos 341: printf("pas: sb emulation requires known irq\n");
1.1 brezak 342: return (0);
343: }
1.10 mycroft 344: pasconf(sc->model, ia->ia_iobase, ia->ia_irq, 1);
1.1 brezak 345: } else {
1.2 brezak 346: DPRINTF(("pas: could not probe pas\n"));
1.1 brezak 347: return (0);
348: }
349:
1.28 augustss 350: /* Now a SoundBlaster, so set up proper bus-space hooks
351: * appropriately
352: */
353:
1.1 brezak 354: sc->sc_sbdsp.sc_iobase = ia->ia_iobase;
1.24 augustss 355: sc->sc_sbdsp.sc_iot = ia->ia_iot;
1.28 augustss 356:
357: /* Map i/o space [we map 24 ports which is the max of the sb and pro */
358: if (bus_space_map(sc->sc_sbdsp.sc_iot, ia->ia_iobase, SBP_NPORT, 0,
359: &sc->sc_sbdsp.sc_ioh)) {
360: printf("pas: can't map i/o space 0x%x/%d in probe\n",
361: ia->ia_iobase, SBP_NPORT);
362: return 0;
363: }
364:
1.1 brezak 365: if (sbdsp_reset(&sc->sc_sbdsp) < 0) {
366: DPRINTF(("pas: couldn't reset card\n"));
1.28 augustss 367: goto unmap;
1.1 brezak 368: }
369:
370: /*
371: * Cannot auto-discover DMA channel.
372: */
373: if (!SB_DRQ_VALID(ia->ia_drq)) {
1.19 christos 374: printf("pas: configured dma chan %d invalid\n", ia->ia_drq);
1.28 augustss 375: goto unmap;
1.1 brezak 376: }
377: #ifdef NEWCONFIG
378: /*
379: * If the IRQ wasn't compiled in, auto-detect it.
380: */
381: if (ia->ia_irq == IRQUNK) {
382: ia->ia_irq = isa_discoverintr(pasforceintr, aux);
383: sbdsp_reset(&sc->sc_sbdsp);
384: if (!SB_IRQ_VALID(ia->ia_irq)) {
1.19 christos 385: printf("pas: couldn't auto-detect interrupt");
1.28 augustss 386: goto unmap;
1.1 brezak 387: }
388: } else
389: #endif
390: if (!SB_IRQ_VALID(ia->ia_irq)) {
1.19 christos 391: printf("pas: configured irq chan %d invalid\n", ia->ia_irq);
1.28 augustss 392: goto unmap;
1.1 brezak 393: }
394:
1.2 brezak 395: sc->sc_sbdsp.sc_irq = ia->ia_irq;
1.23 jtk 396: sc->sc_sbdsp.sc_drq8 = ia->ia_drq;
397: sc->sc_sbdsp.sc_drq16 = -1; /* XXX */
1.1 brezak 398:
399: if (sbdsp_probe(&sc->sc_sbdsp) == 0) {
400: DPRINTF(("pas: sbdsp probe failed\n"));
1.28 augustss 401: goto unmap;
1.1 brezak 402: }
403:
404: ia->ia_iosize = SB_NPORT;
405: return 1;
1.28 augustss 406:
407: unmap:
408: bus_space_unmap(sc->sc_sbdsp.sc_iot, sc->sc_sbdsp.sc_ioh, SBP_NPORT);
409: return 0;
1.1 brezak 410: }
411:
412: #ifdef NEWCONFIG
413: void
414: pasforceintr(aux)
415: void *aux;
416: {
417: static char dmabuf;
418: struct isa_attach_args *ia = aux;
1.10 mycroft 419: int iobase = ia->ia_iobase;
1.1 brezak 420:
421: /*
422: * Set up a DMA read of one byte.
423: * XXX Note that at this point we haven't called
424: * at_setup_dmachan(). This is okay because it just
425: * allocates a buffer in case it needs to make a copy,
426: * and it won't need to make a copy for a 1 byte buffer.
427: * (I think that calling at_setup_dmachan() should be optional;
428: * if you don't call it, it will be called the first time
429: * it is needed (and you pay the latency). Also, you might
430: * never need the buffer anyway.)
431: */
1.13 mycroft 432: at_dma(DMAMODE_READ, &dmabuf, 1, ia->ia_drq);
1.1 brezak 433: if (pas_wdsp(iobase, SB_DSP_RDMA) == 0) {
434: (void)pas_wdsp(iobase, 0);
435: (void)pas_wdsp(iobase, 0);
436: }
437: }
438: #endif
439:
440: /*
441: * Attach hardware to driver, attach hardware driver to audio
442: * pseudo-device driver .
443: */
444: void
445: pasattach(parent, self, aux)
446: struct device *parent, *self;
447: void *aux;
448: {
449: register struct pas_softc *sc = (struct pas_softc *)self;
450: struct isa_attach_args *ia = (struct isa_attach_args *)aux;
1.10 mycroft 451: register int iobase = ia->ia_iobase;
1.8 brezak 452: int err;
453:
1.20 mikel 454: sc->sc_sbdsp.sc_iobase = iobase;
455: sc->sc_sbdsp.sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
456: IST_EDGE, IPL_AUDIO, sbdsp_intr, &sc->sc_sbdsp);
1.27 thorpej 457:
458: sc->sc_sbdsp.sc_isa = parent;
1.1 brezak 459:
1.20 mikel 460: printf(" ProAudio Spectrum %s [rev %d] ", pasnames[sc->model],
461: sc->rev);
1.1 brezak 462:
463: sbdsp_attach(&sc->sc_sbdsp);
464:
1.19 christos 465: sprintf(pas_device.name, "pas,%s", pasnames[sc->model]);
466: sprintf(pas_device.version, "%d", sc->rev);
1.1 brezak 467:
1.8 brezak 468: if ((err = audio_hardware_attach(&pas_hw_if, &sc->sc_sbdsp)) != 0)
1.19 christos 469: printf("pas: could not attach to audio pseudo-device driver (%d)\n", err);
1.1 brezak 470: }
471:
472: int
473: pasopen(dev, flags)
474: dev_t dev;
475: int flags;
476: {
477: struct pas_softc *sc;
478: int unit = AUDIOUNIT(dev);
479:
1.14 thorpej 480: if (unit >= pas_cd.cd_ndevs)
1.1 brezak 481: return ENODEV;
482:
1.14 thorpej 483: sc = pas_cd.cd_devs[unit];
1.1 brezak 484: if (!sc)
485: return ENXIO;
486:
487: return sbdsp_open(&sc->sc_sbdsp, dev, flags);
488: }
489:
490: int
491: pas_getdev(addr, retp)
1.4 mycroft 492: void *addr;
1.1 brezak 493: struct audio_device *retp;
494: {
495: *retp = pas_device;
496: return 0;
497: }
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