2 * sound/386bsd/soundcard.c
4 * Soundcard driver for 386BSD.
6 * Copyright by Hannu Savolainen 1993
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met: 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer. 2.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * $FreeBSD: src/sys/i386/isa/sound/soundcard.c,v 1.87 1999/12/20 18:05:01 eivind Exp $
31 #include <i386/isa/sound/sound_config.h>
32 #if NSND > 0 /* from "snd.h" */
35 #include <sys/select.h>
40 #include <i386/isa/isa_device.h>
44 ** Register definitions for DMA controller 1 (channels 0..3):
46 #define DMA1_CHN(c) (IO_DMA1 + 1*(2*(c))) /* addr reg for channel c */
47 #define DMA1_SMSK (IO_DMA1 + 1*10) /* single mask register */
48 #define DMA1_MODE (IO_DMA1 + 1*11) /* mode register */
49 #define DMA1_FFC (IO_DMA1 + 1*12) /* clear first/last FF */
52 ** Register definitions for DMA controller 2 (channels 4..7):
54 #define DMA2_CHN(c) (IO_DMA2 + 2*(2*(c))) /* addr reg for channel c */
55 #define DMA2_SMSK (IO_DMA2 + 2*10) /* single mask register */
56 #define DMA2_MODE (IO_DMA2 + 2*11) /* mode register */
57 #define DMA2_FFC (IO_DMA2 + 2*12) /* clear first/last FF */
60 #define FIX_RETURN(ret) {if ((ret)<0) return -(ret); else return 0;}
62 static int soundcards_installed = 0; /* Number of installed soundcards */
63 static int soundcard_configured = 0;
65 static struct fileinfo files[SND_NDEVS];
66 struct selinfo selinfo[SND_NDEVS >> 4];
69 MIDIbuf_poll (int dev, struct fileinfo *file, int events, select_table * wait);
72 audio_poll(int dev, struct fileinfo * file, int events, select_table * wait);
75 sequencer_poll (int dev, struct fileinfo *file, int events, select_table * wait);
77 static int sndprobe __P((struct isa_device *));
78 static int sndattach __P((struct isa_device *));
80 static d_open_t sndopen;
81 static d_close_t sndclose;
82 static d_ioctl_t sndioctl;
83 static d_read_t sndread;
84 static d_write_t sndwrite;
85 static d_poll_t sndpoll;
86 static d_mmap_t sndmmap;
88 static char driver_name[] = "snd";
91 static struct cdevsw snd_cdevsw = {
99 /* strategy */ nostrategy,
100 /* name */ driver_name,
101 /* maj */ CDEV_MAJOR,
111 static void sound_mem_init(void);
114 * for each "device XXX" entry in the config file, we have
115 * a struct isa_driver which is linked into isa_devtab_null[]
117 * XXX It is a bit stupid to call the generic routine so many times and
118 * switch then to the specific one, but the alternative way would be
119 * to replicate some code in the probe/attach routines.
122 struct isa_driver opldriver = {sndprobe, sndattach, "opl"};
123 struct isa_driver trixdriver = {sndprobe, sndattach, "trix"};
124 struct isa_driver trixsbdriver = {sndprobe, sndattach, "trixsb"};
125 struct isa_driver sbdriver = {sndprobe, sndattach, "sb"};
126 struct isa_driver sbxvidriver = {sndprobe, sndattach, "sbxvi"};
127 struct isa_driver sbmididriver = {sndprobe, sndattach, "sbmidi"};
128 struct isa_driver awedriver = {sndprobe, sndattach, "awe"};
129 struct isa_driver pasdriver = {sndprobe, sndattach, "pas"};
130 struct isa_driver mpudriver = {sndprobe, sndattach, "mpu"};
131 struct isa_driver gusdriver = {sndprobe, sndattach, "gus"};
132 struct isa_driver gusxvidriver = {sndprobe, sndattach, "gusxvi"};
133 struct isa_driver gusmaxdriver = {sndprobe, sndattach, "gusmax"};
134 struct isa_driver uartdriver = {sndprobe, sndattach, "uart"};
135 struct isa_driver mssdriver = {sndprobe, sndattach, "mss"};
136 struct isa_driver cssdriver = {sndprobe, sndattach, "css"};
137 struct isa_driver sscapedriver = {sndprobe, sndattach, "sscape"};
138 struct isa_driver sscape_mssdriver = {sndprobe, sndattach, "sscape_mss"};
139 struct isa_driver nssdriver = {sndprobe, sndattach, "nss"};
141 short ipri_to_irq(u_short ipri);
143 static ointhand2_t sndintr;
148 struct timeval timecopy;
150 getmicrotime(&timecopy);
151 return timecopy.tv_usec / (1000000 / hz) +
152 (u_long) timecopy.tv_sec * hz;
156 sndmmap( dev_t dev, vm_offset_t offset, int nprot )
158 struct dma_buffparms * dmap;
159 u_int min = minor(dev) >> 4;
161 if (min > 0 ) return (-1);
163 dmap = audio_devs[min]->dmap_out;
165 if (nprot & PROT_EXEC)
167 dmap->mapping_flags |= DMA_MAP_MAPPED ;
168 return( i386_btop(vtophys(dmap->raw_buf) + offset) );
173 sndread(dev_t dev, struct uio * buf, int flag)
175 int count = buf->uio_resid;
176 u_int min = minor(dev);
178 FIX_RETURN(sound_read_sw(min, &files[min], buf, count));
183 sndwrite(dev_t dev, struct uio * buf, int flag)
185 int count = buf->uio_resid;
186 u_int min = minor(dev);
188 FIX_RETURN(sound_write_sw(min, &files[min], buf, count));
192 sndopen(dev_t dev, int flags, int mode, struct proc * p)
195 struct fileinfo tmp_file;
196 u_int min = minor(dev);
198 if (!soundcard_configured && min) {
199 printf("SoundCard Error: soundcard system has not been configured\n");
204 if (flags & FREAD && flags & FWRITE)
205 tmp_file.mode = OPEN_READWRITE;
206 else if (flags & FREAD)
207 tmp_file.mode = OPEN_READ;
208 else if (flags & FWRITE)
209 tmp_file.mode = OPEN_WRITE;
211 selinfo[min >> 4].si_pid = 0;
212 selinfo[min >> 4].si_flags = 0;
213 if ((retval = sound_open_sw(min, &tmp_file)) < 0)
216 bcopy((char *) &tmp_file, (char *) &files[min], sizeof(tmp_file));
223 sndclose(dev_t dev, int flags, int mode, struct proc * p)
225 u_int min = minor(dev);
227 sound_release_sw(min, &files[min]);
232 sndioctl(dev_t dev, u_long cmd, caddr_t arg, int mode, struct proc * p)
234 u_int min = minor(dev);
235 FIX_RETURN(sound_ioctl_sw(min, &files[min], cmd, arg));
239 sndpoll(dev_t dev, int events, struct proc * p)
241 u_int min = minor(dev);
243 /* printf ("snd_select(dev=%d, rw=%d, pid=%d)\n", min, rw, p->p_pid); */
245 switch (min & 0x0f) {
246 #ifdef CONFIG_SEQUENCER
249 return sequencer_poll(min, &files[min], events, p);
255 return MIDIbuf_poll(min, &files[min], events, p);
264 return audio_poll(min, &files[min], events, p);
272 #endif /* ALLOW_POLL */
273 DEB(printf("sound_ioctl(min=%d, cmd=0x%x, arg=0x%x)\n", min, cmd, arg));
278 /* XXX this should become ffs(ipri), perhaps -1 lr 970705 */
280 ipri_to_irq(u_short ipri)
283 * Converts the ipri (bitmask) to the corresponding irq number
287 for (irq = 0; irq < 16; irq++)
288 if (ipri == (1 << irq))
291 return -1; /* Invalid argument */
295 driver_to_voxunit(struct isa_driver * driver)
298 * converts a sound driver pointer into the equivalent VoxWare device
301 if (driver == &opldriver)
302 return (SNDCARD_ADLIB);
303 else if (driver == &sbdriver)
305 else if (driver == &pasdriver)
306 return (SNDCARD_PAS);
307 else if (driver == &gusdriver)
308 return (SNDCARD_GUS);
309 else if (driver == &mpudriver)
310 return (SNDCARD_MPU401);
311 else if (driver == &sbxvidriver)
312 return (SNDCARD_SB16);
313 else if (driver == &sbmididriver)
314 return (SNDCARD_SB16MIDI);
315 else if(driver == &awedriver)
316 return(SNDCARD_AWE32);
317 else if (driver == &uartdriver)
318 return (SNDCARD_UART6850);
319 else if (driver == &gusdriver)
320 return (SNDCARD_GUS16);
321 else if (driver == &mssdriver)
322 return (SNDCARD_MSS);
323 else if (driver == &cssdriver)
324 return (SNDCARD_CS4232);
325 else if (driver == &sscapedriver)
326 return(SNDCARD_SSCAPE);
327 else if (driver == &sscape_mssdriver)
328 return(SNDCARD_SSCAPE_MSS);
329 else if (driver == &trixdriver)
330 return (SNDCARD_TRXPRO);
331 else if (driver == &trixsbdriver)
332 return (SNDCARD_TRXPRO_SB);
333 else if (driver == &nssdriver)
334 return (SNDCARD_NSS);
340 * very dirty: tmp_osp is allocated in sndprobe, and used at the next
344 static sound_os_info *temp_osp;
347 * sndprobe is called for each isa_device. From here, a voxware unit
348 * number is determined, and the appropriate probe routine is selected.
349 * The parameters from the config line are passed to the hw_config struct.
353 sndprobe(struct isa_device * dev)
355 struct address_info hw_config;
358 temp_osp = (sound_os_info *)malloc(sizeof(sound_os_info),
361 panic("SOUND: Cannot allocate memory\n");
364 * get config info from the kernel config. These may be overridden
365 * by the local autoconfiguration routines though (e.g. pnp stuff).
368 hw_config.io_base = dev->id_iobase;
369 hw_config.irq = ipri_to_irq(dev->id_irq);
370 hw_config.dma = dev->id_drq;
373 * misuse the flags field for read dma. Note that, to use 0 as
374 * read dma channel, one of the high bits should be set. lr970705 XXX
377 if (dev->id_flags != 0)
378 hw_config.dma2 = dev->id_flags & 0x7;
382 hw_config.always_detect = 0;
383 hw_config.name = NULL;
384 hw_config.card_subtype = 0;
386 temp_osp->unit = dev->id_unit;
387 hw_config.osp = temp_osp;
388 unit = driver_to_voxunit(dev->id_driver);
390 if (sndtable_probe(unit, &hw_config)) {
391 dev->id_iobase = hw_config.io_base;
392 dev->id_irq = hw_config.irq == -1 ? 0 : (1 << hw_config.irq);
393 dev->id_drq = hw_config.dma;
395 if (hw_config.dma != hw_config.dma2 && ( hw_config.dma2 != -1))
396 dev->id_flags = hw_config.dma2 | 0x100; /* XXX lr */
405 sndattach(struct isa_device * dev)
408 static int midi_initialized = 0;
409 static int seq_initialized = 0;
410 struct address_info hw_config;
414 * Associate interrupt handlers with devices. XXX this may be incomplete.
416 dname = dev->id_driver->name;
417 #if defined(CONFIG_AD1848)
418 if (strcmp(dname, "css") == 0 || strcmp(dname, "gusxvi") == 0 ||
419 strcmp(dname, "mss") == 0)
420 dev->id_ointr = adintr;
423 if (strcmp(dname, "gus") == 0)
424 dev->id_ointr = gusintr;
427 if (strcmp(dname, "pas") == 0)
428 dev->id_ointr = pasintr;
430 #if NSB > 0 && (defined(CONFIG_MIDI) || defined(CONFIG_AUDIO))
431 if (strcmp(dname, "sb") == 0)
432 dev->id_ointr = sbintr;
434 if (strcmp(dname, "sscape_mss") == 0)
435 dev->id_ointr = sndintr;
437 if (strcmp(dname, "sscape") == 0 || strcmp(dname, "trix") == 0)
438 dev->id_ointr = sscapeintr;
441 if (strcmp(dname, "uart0") == 0)
442 dev->id_ointr = m6850intr;
444 #if NMPU > 0 && defined(CONFIG_MIDI)
445 if (strcmp(dname, "mpu") == 0)
446 dev->id_ointr = mpuintr;
449 if (strcmp(dname, "nss") == 0)
450 dev->id_ointr = nssintr;
453 unit = driver_to_voxunit(dev->id_driver);
454 hw_config.io_base = dev->id_iobase;
455 hw_config.irq = ipri_to_irq(dev->id_irq);
456 hw_config.dma = dev->id_drq;
458 /* misuse the flags field for read dma */
459 if (dev->id_flags != 0)
460 hw_config.dma2 = dev->id_flags & 0x7;
464 hw_config.card_subtype = 0;
465 hw_config.osp = temp_osp;
470 if (!(sndtable_init_card(unit, &hw_config))) { /* init card */
471 printf(" <Driver not configured>");
475 * Init the high level sound driver
478 if (!(soundcards_installed = sndtable_get_cardcount())) {
479 DDB(printf("No drivers actually installed\n"));
480 return FALSE; /* No cards detected */
485 if (num_audiodevs) { /* Audio devices present */
489 soundcard_configured = 1;
492 if (num_midis && !midi_initialized)
493 midi_initialized = 1;
495 if ((num_midis + num_synths) && !seq_initialized) {
500 cdevsw_add(&snd_cdevsw);
501 #define GID_SND GID_GAMES
502 #define UID_SND UID_ROOT
503 #define PERM_SND 0660
505 * make links to first successfully probed device, don't do it if
506 * duplicate creation of same node failed (ie. bad cookie returned)
508 if (dev->id_driver == &opldriver){
509 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_SEQ,
510 UID_SND, GID_SND, PERM_SND, "sequencer%r", dev->id_unit);
511 } else if (dev->id_driver == &mpudriver ||
512 dev->id_driver == &sbmididriver ||
513 dev->id_driver == &uartdriver){
514 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_MIDIN,
515 UID_SND, GID_SND, PERM_SND, "midi%r", dev->id_unit);
517 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_DSP,
518 UID_SND, GID_SND, PERM_SND, "dsp%r", dev->id_unit);
519 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_DSP16,
520 UID_SND, GID_SND, PERM_SND, "dspW%r", dev->id_unit);
521 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_AUDIO,
522 UID_SND, GID_SND, PERM_SND, "audio%r", dev->id_unit);
523 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_CTL,
524 UID_SND, GID_SND, PERM_SND, "mixer%r", dev->id_unit);
525 make_dev(&snd_cdevsw, (dev->id_unit << 4) | SND_DEV_STATUS,
526 UID_SND, GID_SND, PERM_SND, "sndstat%r", dev->id_unit);
535 alloc_dmap(int dev, int chan, struct dma_buffparms * dmap)
540 tmpbuf = contigmalloc(audio_devs[dev]->buffsize, M_DEVBUF, M_NOWAIT,
541 0ul, 0xfffffful, 1ul, chan & 4 ? 0x20000ul : 0x10000ul);
543 printf("soundcard buffer alloc failed \n");
545 if (tmpbuf == NULL) {
546 printf("snd: Unable to allocate %d bytes of buffer\n",
547 2 * (int) audio_devs[dev]->buffsize);
550 dmap->raw_buf = tmpbuf;
552 * Use virtual address as the physical address, since isa_dmastart
553 * performs the phys address computation.
556 dmap->raw_buf_phys = (uintptr_t) tmpbuf;
557 for (i = 0; i < audio_devs[dev]->buffsize; i++) *tmpbuf++ = 0x80;
565 static u_long dsp_init_mask = 0;
567 for (dev = 0; dev < num_audiodevs; dev++) /* Enumerate devices */
568 if (!(dsp_init_mask & (1 << dev))) /* Not already done */
569 if (audio_devs[dev]->dmachan1 >= 0) {
570 dsp_init_mask |= (1 << dev);
571 audio_devs[dev]->buffsize = DSP_BUFFSIZE;
572 /* Now allocate the buffers */
573 alloc_dmap(dev, audio_devs[dev]->dmachan1,
574 audio_devs[dev]->dmap_out);
575 if (audio_devs[dev]->flags & DMA_DUPLEX)
576 alloc_dmap(dev, audio_devs[dev]->dmachan2,
577 audio_devs[dev]->dmap_in);
585 snd_ioctl_return(int *addr, int value)
588 return value; /* Error */
594 typedef void (*irq_proc_t) (int irq);
595 static irq_proc_t irq_proc[MAX_UNIT] = {NULL};
596 static int irq_irq[MAX_UNIT] = {0};
599 snd_set_irq_handler(int int_lvl, void (*hndlr) (int), sound_os_info * osp)
601 if (osp->unit >= MAX_UNIT) {
602 printf("Sound error: Unit number too high (%d)\n", osp->unit);
605 irq_proc[osp->unit] = hndlr;
606 irq_irq[osp->unit] = int_lvl;
613 if ( (unit >= MAX_UNIT) || (irq_proc[unit] == NULL) )
616 irq_proc[unit] (irq_irq[unit]); /* Call the installed handler */
620 conf_printf(char *name, struct address_info * hw_config)
625 printf("snd0: <%s> ", name);
627 if (hw_config->io_base != -1 )
628 printf("at 0x%03x", hw_config->io_base);
630 if (hw_config->irq != -1 )
631 printf(" irq %d", hw_config->irq);
633 if (hw_config->dma != -1 || hw_config->dma2 != -1) {
634 printf(" dma %d", hw_config->dma);
635 if (hw_config->dma2 != -1)
636 printf(",%d", hw_config->dma2);
643 conf_printf2(char *name, int base, int irq, int dma, int dma2)
648 printf("snd0: <%s> ", name);
650 if (hw_config->io_base != -1 )
651 printf("at 0x%03x", hw_config->io_base);
654 printf(" irq %d", irq);
656 if (dma != -1 || dma2 != -1) {
657 printf(" dma %d", dma);
666 void tenmicrosec (int j)
669 for (k = 0; k < j/10 ; k++) {
670 for (i = 0; i < 16; i++)
675 #endif /* NSND > 0 */