2 * Copyright (c) 2002 Orion Hodson <orion@freebsd.org>
3 * Portions of this code derived from via82c686.c:
4 * Copyright (c) 2000 David Jones <dej@ox.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER 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
32 * Grzybowski Rafal, Russell Davies, Mark Handley, Daniel O'Connor for
33 * comments, machine time, testing patches, and patience. VIA for
34 * providing specs. ALSA for helpful comments and some register poke
38 #ifdef HAVE_KERNEL_OPTION_HEADERS
42 #include <dev/sound/pcm/sound.h>
43 #include <dev/sound/pcm/ac97.h>
45 #include <dev/pci/pcireg.h>
46 #include <dev/pci/pcivar.h>
47 #include <sys/sysctl.h>
49 #include <dev/sound/pci/via8233.h>
51 SND_DECLARE_FILE("$FreeBSD$");
53 #define VIA8233_PCI_ID 0x30591106
55 #define VIA8233_REV_ID_8233PRE 0x10
56 #define VIA8233_REV_ID_8233C 0x20
57 #define VIA8233_REV_ID_8233 0x30
58 #define VIA8233_REV_ID_8233A 0x40
59 #define VIA8233_REV_ID_8235 0x50
60 #define VIA8233_REV_ID_8237 0x60
61 #define VIA8233_REV_ID_8251 0x70
63 #define SEGS_PER_CHAN 2 /* Segments per channel */
64 #define NDXSCHANS 4 /* No of DXS channels */
65 #define NMSGDCHANS 1 /* No of multichannel SGD */
66 #define NWRCHANS 1 /* No of write channels */
67 #define NCHANS (NWRCHANS + NDXSCHANS + NMSGDCHANS)
68 #define NSEGS NCHANS * SEGS_PER_CHAN /* Segments in SGD table */
69 #define VIA_SEGS_MIN 2
70 #define VIA_SEGS_MAX 64
71 #define VIA_SEGS_DEFAULT 2
72 #define VIA_BLK_MIN 32
73 #define VIA_BLK_ALIGN (~(VIA_BLK_MIN - 1))
75 #define VIA_DEFAULT_BUFSZ 0x1000
77 /* we rely on this struct being packed to 64 bits */
79 volatile uint32_t ptr;
80 volatile uint32_t flags;
81 #define VIA_DMAOP_EOL 0x80000000
82 #define VIA_DMAOP_FLAG 0x40000000
83 #define VIA_DMAOP_STOP 0x20000000
84 #define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF)
90 struct via_info *parent;
91 struct pcm_channel *channel;
92 struct snd_dbuf *buffer;
93 struct via_dma_op *sgd_table;
95 int dir, rbase, active;
96 unsigned int blksz, blkcnt;
97 unsigned int ptr, prevptr;
104 bus_space_handle_t sh;
105 bus_dma_tag_t parent_dmat;
106 bus_dma_tag_t sgd_dmat;
107 bus_dmamap_t sgd_dmamap;
110 struct resource *reg, *irq;
113 struct ac97_info *codec;
115 unsigned int bufsz, blkcnt;
116 int dxs_src, dma_eol_wake;
118 struct via_chinfo pch[NDXSCHANS + NMSGDCHANS];
119 struct via_chinfo rch[NWRCHANS];
120 struct via_dma_op *sgd_table;
122 uint16_t n_dxs_registered;
123 int play_num, rec_num;
125 struct callout poll_timer;
126 int poll_ticks, polling;
129 static uint32_t via_fmt[] = {
130 SND_FORMAT(AFMT_U8, 1, 0),
131 SND_FORMAT(AFMT_U8, 2, 0),
132 SND_FORMAT(AFMT_S16_LE, 1, 0),
133 SND_FORMAT(AFMT_S16_LE, 2, 0),
137 static struct pcmchan_caps via_vracaps = { 4000, 48000, via_fmt, 0 };
138 static struct pcmchan_caps via_caps = { 48000, 48000, via_fmt, 0 };
141 via_chan_active(struct via_info *via)
148 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++)
149 ret += via->pch[i].active;
151 for (i = 0; i < NWRCHANS; i++)
152 ret += via->rch[i].active;
158 sysctl_via8233_spdif_enable(SYSCTL_HANDLER_ARGS)
160 struct via_info *via;
165 dev = oidp->oid_arg1;
166 via = pcm_getdevinfo(dev);
167 snd_mtxlock(via->lock);
168 r = pci_read_config(dev, VIA_PCI_SPDIF, 1);
169 snd_mtxunlock(via->lock);
170 new_en = (r & VIA_SPDIF_EN) ? 1 : 0;
171 err = sysctl_handle_int(oidp, &new_en, 0, req);
173 if (err || req->newptr == NULL)
175 if (new_en < 0 || new_en > 1)
182 snd_mtxlock(via->lock);
183 pci_write_config(dev, VIA_PCI_SPDIF, r, 1);
184 snd_mtxunlock(via->lock);
190 sysctl_via8233_dxs_src(SYSCTL_HANDLER_ARGS)
192 struct via_info *via;
196 dev = oidp->oid_arg1;
197 via = pcm_getdevinfo(dev);
198 snd_mtxlock(via->lock);
200 snd_mtxunlock(via->lock);
201 err = sysctl_handle_int(oidp, &val, 0, req);
203 if (err || req->newptr == NULL)
205 if (val < 0 || val > 1)
208 snd_mtxlock(via->lock);
210 snd_mtxunlock(via->lock);
216 sysctl_via_polling(SYSCTL_HANDLER_ARGS)
218 struct via_info *via;
222 dev = oidp->oid_arg1;
223 via = pcm_getdevinfo(dev);
226 snd_mtxlock(via->lock);
228 snd_mtxunlock(via->lock);
229 err = sysctl_handle_int(oidp, &val, 0, req);
231 if (err || req->newptr == NULL)
233 if (val < 0 || val > 1)
236 snd_mtxlock(via->lock);
237 if (val != via->polling) {
238 if (via_chan_active(via) != 0)
245 snd_mtxunlock(via->lock);
251 via_init_sysctls(device_t dev)
253 /* XXX: an user should be able to set this with a control tool,
254 if not done before 7.0-RELEASE, this needs to be converted to
255 a device specific sysctl "dev.pcm.X.yyy" via device_get_sysctl_*()
256 as discussed on multimedia@ in msg-id <861wujij2q.fsf@xps.des.no> */
257 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
258 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
259 "spdif_enabled", CTLTYPE_INT | CTLFLAG_RW, dev, sizeof(dev),
260 sysctl_via8233_spdif_enable, "I",
261 "Enable S/PDIF output on primary playback channel");
262 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
263 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
264 "dxs_src", CTLTYPE_INT | CTLFLAG_RW, dev, sizeof(dev),
265 sysctl_via8233_dxs_src, "I",
266 "Enable VIA DXS Sample Rate Converter");
267 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
268 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO,
269 "polling", CTLTYPE_INT | CTLFLAG_RW, dev, sizeof(dev),
270 sysctl_via_polling, "I",
271 "Enable polling mode");
274 static __inline uint32_t
275 via_rd(struct via_info *via, int regno, int size)
279 return (bus_space_read_1(via->st, via->sh, regno));
281 return (bus_space_read_2(via->st, via->sh, regno));
283 return (bus_space_read_4(via->st, via->sh, regno));
290 via_wr(struct via_info *via, int regno, uint32_t data, int size)
295 bus_space_write_1(via->st, via->sh, regno, data);
298 bus_space_write_2(via->st, via->sh, regno, data);
301 bus_space_write_4(via->st, via->sh, regno, data);
306 /* -------------------------------------------------------------------- */
307 /* Codec interface */
310 via_waitready_codec(struct via_info *via)
314 /* poll until codec not busy */
315 for (i = 0; i < 1000; i++) {
316 if ((via_rd(via, VIA_AC97_CONTROL, 4) & VIA_AC97_BUSY) == 0)
320 device_printf(via->dev, "%s: codec busy\n", __func__);
325 via_waitvalid_codec(struct via_info *via)
329 /* poll until codec valid */
330 for (i = 0; i < 1000; i++) {
331 if (via_rd(via, VIA_AC97_CONTROL, 4) & VIA_AC97_CODEC00_VALID)
335 device_printf(via->dev, "%s: codec invalid\n", __func__);
340 via_write_codec(kobj_t obj, void *addr, int reg, uint32_t val)
342 struct via_info *via = addr;
344 if (via_waitready_codec(via))
347 via_wr(via, VIA_AC97_CONTROL,
348 VIA_AC97_CODEC00_VALID | VIA_AC97_INDEX(reg) |
349 VIA_AC97_DATA(val), 4);
355 via_read_codec(kobj_t obj, void *addr, int reg)
357 struct via_info *via = addr;
359 if (via_waitready_codec(via))
362 via_wr(via, VIA_AC97_CONTROL, VIA_AC97_CODEC00_VALID |
363 VIA_AC97_READ | VIA_AC97_INDEX(reg), 4);
365 if (via_waitready_codec(via))
368 if (via_waitvalid_codec(via))
371 return (via_rd(via, VIA_AC97_CONTROL, 2));
374 static kobj_method_t via_ac97_methods[] = {
375 KOBJMETHOD(ac97_read, via_read_codec),
376 KOBJMETHOD(ac97_write, via_write_codec),
379 AC97_DECLARE(via_ac97);
381 /* -------------------------------------------------------------------- */
384 via_buildsgdt(struct via_chinfo *ch)
386 uint32_t phys_addr, flag;
389 phys_addr = sndbuf_getbufaddr(ch->buffer);
391 for (i = 0; i < ch->blkcnt; i++) {
392 flag = (i == ch->blkcnt - 1) ? VIA_DMAOP_EOL : VIA_DMAOP_FLAG;
393 ch->sgd_table[i].ptr = phys_addr + (i * ch->blksz);
394 ch->sgd_table[i].flags = flag | ch->blksz;
400 /* -------------------------------------------------------------------- */
401 /* Format setting functions */
404 via8233wr_setformat(kobj_t obj, void *data, uint32_t format)
406 struct via_chinfo *ch = data;
407 struct via_info *via = ch->parent;
409 uint32_t f = WR_FORMAT_STOP_INDEX;
411 if (AFMT_CHANNEL(format) > 1)
412 f |= WR_FORMAT_STEREO;
413 if (format & AFMT_S16_LE)
414 f |= WR_FORMAT_16BIT;
415 snd_mtxlock(via->lock);
416 via_wr(via, VIA_WR0_FORMAT, f, 4);
417 snd_mtxunlock(via->lock);
423 via8233dxs_setformat(kobj_t obj, void *data, uint32_t format)
425 struct via_chinfo *ch = data;
426 struct via_info *via = ch->parent;
429 r = ch->rbase + VIA8233_RP_DXS_RATEFMT;
430 snd_mtxlock(via->lock);
431 v = via_rd(via, r, 4);
433 v &= ~(VIA8233_DXS_RATEFMT_STEREO | VIA8233_DXS_RATEFMT_16BIT);
434 if (AFMT_CHANNEL(format) > 1)
435 v |= VIA8233_DXS_RATEFMT_STEREO;
436 if (format & AFMT_16BIT)
437 v |= VIA8233_DXS_RATEFMT_16BIT;
438 via_wr(via, r, v, 4);
439 snd_mtxunlock(via->lock);
445 via8233msgd_setformat(kobj_t obj, void *data, uint32_t format)
447 struct via_chinfo *ch = data;
448 struct via_info *via = ch->parent;
450 uint32_t s = 0xff000000;
451 uint8_t v = (format & AFMT_S16_LE) ? MC_SGD_16BIT : MC_SGD_8BIT;
453 if (AFMT_CHANNEL(format) > 1) {
454 v |= MC_SGD_CHANNELS(2);
455 s |= SLOT3(1) | SLOT4(2);
457 v |= MC_SGD_CHANNELS(1);
458 s |= SLOT3(1) | SLOT4(1);
461 snd_mtxlock(via->lock);
462 via_wr(via, VIA_MC_SLOT_SELECT, s, 4);
463 via_wr(via, VIA_MC_SGD_FORMAT, v, 1);
464 snd_mtxunlock(via->lock);
469 /* -------------------------------------------------------------------- */
470 /* Speed setting functions */
473 via8233wr_setspeed(kobj_t obj, void *data, uint32_t speed)
475 struct via_chinfo *ch = data;
476 struct via_info *via = ch->parent;
478 if (via->codec_caps & AC97_EXTCAP_VRA)
479 return (ac97_setrate(via->codec, AC97_REGEXT_LADCRATE, speed));
485 via8233dxs_setspeed(kobj_t obj, void *data, uint32_t speed)
487 struct via_chinfo *ch = data;
488 struct via_info *via = ch->parent;
491 r = ch->rbase + VIA8233_RP_DXS_RATEFMT;
492 snd_mtxlock(via->lock);
493 v = via_rd(via, r, 4) & ~VIA8233_DXS_RATEFMT_48K;
495 /* Careful to avoid overflow (divide by 48 per vt8233c docs) */
497 v |= VIA8233_DXS_RATEFMT_48K * (speed / 48) / (48000 / 48);
498 via_wr(via, r, v, 4);
499 snd_mtxunlock(via->lock);
505 via8233msgd_setspeed(kobj_t obj, void *data, uint32_t speed)
507 struct via_chinfo *ch = data;
508 struct via_info *via = ch->parent;
510 if (via->codec_caps & AC97_EXTCAP_VRA)
511 return (ac97_setrate(via->codec, AC97_REGEXT_FDACRATE, speed));
516 /* -------------------------------------------------------------------- */
517 /* Format probing functions */
519 static struct pcmchan_caps *
520 via8233wr_getcaps(kobj_t obj, void *data)
522 struct via_chinfo *ch = data;
523 struct via_info *via = ch->parent;
525 /* Controlled by ac97 registers */
526 if (via->codec_caps & AC97_EXTCAP_VRA)
527 return (&via_vracaps);
531 static struct pcmchan_caps *
532 via8233dxs_getcaps(kobj_t obj, void *data)
534 struct via_chinfo *ch = data;
535 struct via_info *via = ch->parent;
538 * Controlled by onboard registers
540 * Apparently, few boards can do DXS sample rate
544 return (&via_vracaps);
548 static struct pcmchan_caps *
549 via8233msgd_getcaps(kobj_t obj, void *data)
551 struct via_chinfo *ch = data;
552 struct via_info *via = ch->parent;
554 /* Controlled by ac97 registers */
555 if (via->codec_caps & AC97_EXTCAP_VRA)
556 return (&via_vracaps);
560 /* -------------------------------------------------------------------- */
561 /* Common functions */
564 via8233chan_setfragments(kobj_t obj, void *data,
565 uint32_t blksz, uint32_t blkcnt)
567 struct via_chinfo *ch = data;
568 struct via_info *via = ch->parent;
570 blksz &= VIA_BLK_ALIGN;
572 if (blksz > (sndbuf_getmaxsize(ch->buffer) / VIA_SEGS_MIN))
573 blksz = sndbuf_getmaxsize(ch->buffer) / VIA_SEGS_MIN;
574 if (blksz < VIA_BLK_MIN)
576 if (blkcnt > VIA_SEGS_MAX)
577 blkcnt = VIA_SEGS_MAX;
578 if (blkcnt < VIA_SEGS_MIN)
579 blkcnt = VIA_SEGS_MIN;
581 while ((blksz * blkcnt) > sndbuf_getmaxsize(ch->buffer)) {
582 if ((blkcnt >> 1) >= VIA_SEGS_MIN)
584 else if ((blksz >> 1) >= VIA_BLK_MIN)
590 if ((sndbuf_getblksz(ch->buffer) != blksz ||
591 sndbuf_getblkcnt(ch->buffer) != blkcnt) &&
592 sndbuf_resize(ch->buffer, blkcnt, blksz) != 0)
593 device_printf(via->dev, "%s: failed blksz=%u blkcnt=%u\n",
594 __func__, blksz, blkcnt);
596 ch->blksz = sndbuf_getblksz(ch->buffer);
597 ch->blkcnt = sndbuf_getblkcnt(ch->buffer);
603 via8233chan_setblocksize(kobj_t obj, void *data, uint32_t blksz)
605 struct via_chinfo *ch = data;
606 struct via_info *via = ch->parent;
608 via8233chan_setfragments(obj, data, blksz, via->blkcnt);
614 via8233chan_getptr(kobj_t obj, void *data)
616 struct via_chinfo *ch = data;
617 struct via_info *via = ch->parent;
618 uint32_t v, index, count, ptr;
620 snd_mtxlock(via->lock);
621 if (via->polling != 0) {
623 snd_mtxunlock(via->lock);
625 v = via_rd(via, ch->rbase + VIA_RP_CURRENT_COUNT, 4);
626 snd_mtxunlock(via->lock);
627 index = v >> 24; /* Last completed buffer */
628 count = v & 0x00ffffff; /* Bytes remaining */
629 ptr = (index + 1) * ch->blksz - count;
630 ptr %= ch->blkcnt * ch->blksz; /* Wrap to available space */
637 via8233chan_reset(struct via_info *via, struct via_chinfo *ch)
639 via_wr(via, ch->rbase + VIA_RP_CONTROL, SGD_CONTROL_STOP, 1);
640 via_wr(via, ch->rbase + VIA_RP_CONTROL, 0x00, 1);
641 via_wr(via, ch->rbase + VIA_RP_STATUS,
642 SGD_STATUS_EOL | SGD_STATUS_FLAG, 1);
645 /* -------------------------------------------------------------------- */
646 /* Channel initialization functions */
649 via8233chan_sgdinit(struct via_info *via, struct via_chinfo *ch, int chnum)
651 ch->sgd_table = &via->sgd_table[chnum * VIA_SEGS_MAX];
652 ch->sgd_addr = via->sgd_addr + chnum * VIA_SEGS_MAX *
653 sizeof(struct via_dma_op);
657 via8233wr_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
658 struct pcm_channel *c, int dir)
660 struct via_info *via = devinfo;
661 struct via_chinfo *ch;
664 snd_mtxlock(via->lock);
665 num = via->rec_num++;
671 ch->blkcnt = via->blkcnt;
672 ch->rbase = VIA_WR_BASE(num);
673 via_wr(via, ch->rbase + VIA_WR_RP_SGD_FORMAT, WR_FIFO_ENABLE, 1);
674 snd_mtxunlock(via->lock);
676 if (sndbuf_alloc(ch->buffer, via->parent_dmat, 0, via->bufsz) != 0)
679 snd_mtxlock(via->lock);
680 via8233chan_sgdinit(via, ch, num);
681 via8233chan_reset(via, ch);
682 snd_mtxunlock(via->lock);
688 via8233dxs_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
689 struct pcm_channel *c, int dir)
691 struct via_info *via = devinfo;
692 struct via_chinfo *ch;
695 snd_mtxlock(via->lock);
696 num = via->play_num++;
702 ch->blkcnt = via->blkcnt;
705 * All cards apparently support DXS3, but not other DXS
706 * channels. We therefore want to align first DXS channel to
709 ch->rbase = VIA_DXS_BASE(NDXSCHANS - 1 - via->n_dxs_registered);
710 via->n_dxs_registered++;
711 snd_mtxunlock(via->lock);
713 if (sndbuf_alloc(ch->buffer, via->parent_dmat, 0, via->bufsz) != 0)
716 snd_mtxlock(via->lock);
717 via8233chan_sgdinit(via, ch, NWRCHANS + num);
718 via8233chan_reset(via, ch);
719 snd_mtxunlock(via->lock);
725 via8233msgd_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
726 struct pcm_channel *c, int dir)
728 struct via_info *via = devinfo;
729 struct via_chinfo *ch;
732 snd_mtxlock(via->lock);
733 num = via->play_num++;
739 ch->rbase = VIA_MC_SGD_STATUS;
740 ch->blkcnt = via->blkcnt;
741 snd_mtxunlock(via->lock);
743 if (sndbuf_alloc(ch->buffer, via->parent_dmat, 0, via->bufsz) != 0)
746 snd_mtxlock(via->lock);
747 via8233chan_sgdinit(via, ch, NWRCHANS + num);
748 via8233chan_reset(via, ch);
749 snd_mtxunlock(via->lock);
755 via8233chan_mute(struct via_info *via, struct via_chinfo *ch, int muted)
757 if (BASE_IS_VIA_DXS_REG(ch->rbase)) {
759 muted = (muted) ? VIA8233_DXS_MUTE : 0;
760 via_wr(via, ch->rbase + VIA8233_RP_DXS_LVOL, muted, 1);
761 via_wr(via, ch->rbase + VIA8233_RP_DXS_RVOL, muted, 1);
762 r = via_rd(via, ch->rbase + VIA8233_RP_DXS_LVOL, 1) &
765 device_printf(via->dev,
766 "%s: failed to set dxs volume "
767 "(dxs base 0x%02x).\n", __func__, ch->rbase);
772 via_poll_channel(struct via_chinfo *ch)
774 struct via_info *via;
776 uint32_t v, index, count;
779 if (ch == NULL || ch->channel == NULL || ch->active == 0)
783 sz = ch->blksz * ch->blkcnt;
784 v = via_rd(via, ch->rbase + VIA_RP_CURRENT_COUNT, 4);
786 count = v & 0x00ffffff;
787 ptr = ((index + 1) * ch->blksz) - count;
789 ptr &= ~(ch->blksz - 1);
791 delta = (sz + ptr - ch->prevptr) % sz;
793 if (delta < ch->blksz)
802 via_poll_callback(void *arg)
804 struct via_info *via = arg;
805 uint32_t ptrigger = 0, rtrigger = 0;
811 snd_mtxlock(via->lock);
812 if (via->polling == 0 || via_chan_active(via) == 0) {
813 snd_mtxunlock(via->lock);
817 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++)
818 ptrigger |= (via_poll_channel(&via->pch[i]) != 0) ?
821 for (i = 0; i < NWRCHANS; i++)
822 rtrigger |= (via_poll_channel(&via->rch[i]) != 0) ?
826 callout_reset(&via->poll_timer, 1/*via->poll_ticks*/,
827 via_poll_callback, via);
829 snd_mtxunlock(via->lock);
831 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++) {
832 if (ptrigger & (1 << i))
833 chn_intr(via->pch[i].channel);
835 for (i = 0; i < NWRCHANS; i++) {
836 if (rtrigger & (1 << i))
837 chn_intr(via->rch[i].channel);
842 via_poll_ticks(struct via_info *via)
844 struct via_chinfo *ch;
849 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++) {
851 if (ch->channel == NULL || ch->active == 0)
853 pollticks = ((uint64_t)hz * ch->blksz) /
854 ((uint64_t)sndbuf_getalign(ch->buffer) *
855 sndbuf_getspd(ch->buffer));
865 for (i = 0; i < NWRCHANS; i++) {
867 if (ch->channel == NULL || ch->active == 0)
869 pollticks = ((uint64_t)hz * ch->blksz) /
870 ((uint64_t)sndbuf_getalign(ch->buffer) *
871 sndbuf_getspd(ch->buffer));
885 via8233chan_trigger(kobj_t obj, void* data, int go)
887 struct via_chinfo *ch = data;
888 struct via_info *via = ch->parent;
891 if (!PCMTRIG_COMMON(go))
894 snd_mtxlock(via->lock);
898 via8233chan_mute(via, ch, 0);
899 via_wr(via, ch->rbase + VIA_RP_TABLE_PTR, ch->sgd_addr, 4);
900 if (via->polling != 0) {
903 pollticks = ((uint64_t)hz * ch->blksz) /
904 ((uint64_t)sndbuf_getalign(ch->buffer) *
905 sndbuf_getspd(ch->buffer));
911 if (via_chan_active(via) == 0 ||
912 pollticks < via->poll_ticks) {
914 if (via_chan_active(via) == 0)
915 printf("%s: pollticks=%d\n",
916 __func__, pollticks);
919 "pollticks %d -> %d\n",
920 __func__, via->poll_ticks,
923 via->poll_ticks = pollticks;
924 callout_reset(&via->poll_timer, 1,
925 via_poll_callback, via);
928 via_wr(via, ch->rbase + VIA_RP_CONTROL,
929 SGD_CONTROL_START | SGD_CONTROL_AUTOSTART |
930 ((via->polling == 0) ?
931 (SGD_CONTROL_I_EOL | SGD_CONTROL_I_FLAG) : 0), 1);
936 via_wr(via, ch->rbase + VIA_RP_CONTROL, SGD_CONTROL_STOP, 1);
937 via8233chan_mute(via, ch, 1);
938 via8233chan_reset(via, ch);
940 if (via->polling != 0) {
941 if (via_chan_active(via) == 0) {
942 callout_stop(&via->poll_timer);
945 pollticks = via_poll_ticks(via);
946 if (pollticks > via->poll_ticks) {
948 printf("%s: pollticks "
950 __func__, via->poll_ticks,
952 via->poll_ticks = pollticks;
953 callout_reset(&via->poll_timer,
954 1, via_poll_callback,
963 snd_mtxunlock(via->lock);
967 static kobj_method_t via8233wr_methods[] = {
968 KOBJMETHOD(channel_init, via8233wr_init),
969 KOBJMETHOD(channel_setformat, via8233wr_setformat),
970 KOBJMETHOD(channel_setspeed, via8233wr_setspeed),
971 KOBJMETHOD(channel_getcaps, via8233wr_getcaps),
972 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize),
973 KOBJMETHOD(channel_setfragments, via8233chan_setfragments),
974 KOBJMETHOD(channel_trigger, via8233chan_trigger),
975 KOBJMETHOD(channel_getptr, via8233chan_getptr),
978 CHANNEL_DECLARE(via8233wr);
980 static kobj_method_t via8233dxs_methods[] = {
981 KOBJMETHOD(channel_init, via8233dxs_init),
982 KOBJMETHOD(channel_setformat, via8233dxs_setformat),
983 KOBJMETHOD(channel_setspeed, via8233dxs_setspeed),
984 KOBJMETHOD(channel_getcaps, via8233dxs_getcaps),
985 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize),
986 KOBJMETHOD(channel_setfragments, via8233chan_setfragments),
987 KOBJMETHOD(channel_trigger, via8233chan_trigger),
988 KOBJMETHOD(channel_getptr, via8233chan_getptr),
991 CHANNEL_DECLARE(via8233dxs);
993 static kobj_method_t via8233msgd_methods[] = {
994 KOBJMETHOD(channel_init, via8233msgd_init),
995 KOBJMETHOD(channel_setformat, via8233msgd_setformat),
996 KOBJMETHOD(channel_setspeed, via8233msgd_setspeed),
997 KOBJMETHOD(channel_getcaps, via8233msgd_getcaps),
998 KOBJMETHOD(channel_setblocksize, via8233chan_setblocksize),
999 KOBJMETHOD(channel_setfragments, via8233chan_setfragments),
1000 KOBJMETHOD(channel_trigger, via8233chan_trigger),
1001 KOBJMETHOD(channel_getptr, via8233chan_getptr),
1004 CHANNEL_DECLARE(via8233msgd);
1006 /* -------------------------------------------------------------------- */
1011 struct via_info *via = p;
1012 uint32_t ptrigger = 0, rtrigger = 0;
1015 snd_mtxlock(via->lock);
1016 if (via->polling != 0) {
1017 snd_mtxunlock(via->lock);
1020 /* Poll playback channels */
1021 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++) {
1022 if (via->pch[i].channel == NULL || via->pch[i].active == 0)
1024 reg = via->pch[i].rbase + VIA_RP_STATUS;
1025 stat = via_rd(via, reg, 1);
1026 if (stat & SGD_STATUS_INTR) {
1027 if (via->dma_eol_wake && ((stat & SGD_STATUS_EOL) ||
1028 !(stat & SGD_STATUS_ACTIVE)))
1029 via_wr(via, via->pch[i].rbase + VIA_RP_CONTROL,
1030 SGD_CONTROL_START | SGD_CONTROL_AUTOSTART |
1031 SGD_CONTROL_I_EOL | SGD_CONTROL_I_FLAG, 1);
1032 via_wr(via, reg, stat, 1);
1036 /* Poll record channels */
1037 for (i = 0; i < NWRCHANS; i++) {
1038 if (via->rch[i].channel == NULL || via->rch[i].active == 0)
1040 reg = via->rch[i].rbase + VIA_RP_STATUS;
1041 stat = via_rd(via, reg, 1);
1042 if (stat & SGD_STATUS_INTR) {
1043 if (via->dma_eol_wake && ((stat & SGD_STATUS_EOL) ||
1044 !(stat & SGD_STATUS_ACTIVE)))
1045 via_wr(via, via->rch[i].rbase + VIA_RP_CONTROL,
1046 SGD_CONTROL_START | SGD_CONTROL_AUTOSTART |
1047 SGD_CONTROL_I_EOL | SGD_CONTROL_I_FLAG, 1);
1048 via_wr(via, reg, stat, 1);
1052 snd_mtxunlock(via->lock);
1054 for (i = 0; i < NDXSCHANS + NMSGDCHANS; i++) {
1055 if (ptrigger & (1 << i))
1056 chn_intr(via->pch[i].channel);
1058 for (i = 0; i < NWRCHANS; i++) {
1059 if (rtrigger & (1 << i))
1060 chn_intr(via->rch[i].channel);
1065 * Probe and attach the card
1068 via_probe(device_t dev)
1070 switch(pci_get_devid(dev)) {
1071 case VIA8233_PCI_ID:
1072 switch(pci_get_revid(dev)) {
1073 case VIA8233_REV_ID_8233PRE:
1074 device_set_desc(dev, "VIA VT8233 (pre)");
1075 return (BUS_PROBE_DEFAULT);
1076 case VIA8233_REV_ID_8233C:
1077 device_set_desc(dev, "VIA VT8233C");
1078 return (BUS_PROBE_DEFAULT);
1079 case VIA8233_REV_ID_8233:
1080 device_set_desc(dev, "VIA VT8233");
1081 return (BUS_PROBE_DEFAULT);
1082 case VIA8233_REV_ID_8233A:
1083 device_set_desc(dev, "VIA VT8233A");
1084 return (BUS_PROBE_DEFAULT);
1085 case VIA8233_REV_ID_8235:
1086 device_set_desc(dev, "VIA VT8235");
1087 return (BUS_PROBE_DEFAULT);
1088 case VIA8233_REV_ID_8237:
1089 device_set_desc(dev, "VIA VT8237");
1090 return (BUS_PROBE_DEFAULT);
1091 case VIA8233_REV_ID_8251:
1092 device_set_desc(dev, "VIA VT8251");
1093 return (BUS_PROBE_DEFAULT);
1095 device_set_desc(dev, "VIA VT8233X"); /* Unknown */
1096 return (BUS_PROBE_DEFAULT);
1103 dma_cb(void *p, bus_dma_segment_t *bds, int a, int b)
1105 struct via_info *via = (struct via_info *)p;
1106 via->sgd_addr = bds->ds_addr;
1110 via_chip_init(device_t dev)
1114 /* Wake up and reset AC97 if necessary */
1115 data = pci_read_config(dev, VIA_PCI_ACLINK_STAT, 1);
1117 if ((data & VIA_PCI_ACLINK_C00_READY) == 0) {
1118 /* Cold reset per ac97r2.3 spec (page 95) */
1120 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1121 VIA_PCI_ACLINK_EN, 1);
1122 /* Wait T_rst_low */
1125 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1126 VIA_PCI_ACLINK_EN | VIA_PCI_ACLINK_NRST, 1);
1127 /* Wait T_rst2clk */
1130 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1131 VIA_PCI_ACLINK_EN, 1);
1135 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1136 VIA_PCI_ACLINK_EN, 1);
1139 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1140 VIA_PCI_ACLINK_EN | VIA_PCI_ACLINK_SYNC, 1);
1141 /* Wait T_sync_high */
1144 pci_write_config(dev, VIA_PCI_ACLINK_CTRL,
1145 VIA_PCI_ACLINK_EN, 1);
1146 /* Wait T_sync2clk */
1150 /* Power everything up */
1151 pci_write_config(dev, VIA_PCI_ACLINK_CTRL, VIA_PCI_ACLINK_DESIRED, 1);
1153 /* Wait for codec to become ready (largest reported delay 310ms) */
1154 for (cnt = 0; cnt < 2000; cnt++) {
1155 data = pci_read_config(dev, VIA_PCI_ACLINK_STAT, 1);
1156 if (data & VIA_PCI_ACLINK_C00_READY)
1160 device_printf(dev, "primary codec not ready (cnt = 0x%02x)\n", cnt);
1165 via_attach(device_t dev)
1167 struct via_info *via = 0;
1168 char status[SND_STATUSLEN];
1169 int i, via_dxs_disabled, via_dxs_src, via_dxs_chnum, via_sgd_chnum;
1173 via = malloc(sizeof *via, M_DEVBUF, M_WAITOK | M_ZERO);
1174 via->lock = snd_mtxcreate(device_get_nameunit(dev),
1175 "snd_via8233 softc");
1178 callout_init(&via->poll_timer, CALLOUT_MPSAFE);
1179 via->poll_ticks = 1;
1181 if (resource_int_value(device_get_name(dev),
1182 device_get_unit(dev), "polling", &i) == 0 && i != 0)
1187 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
1188 pci_enable_busmaster(dev);
1190 via->regid = PCIR_BAR(0);
1191 via->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &via->regid,
1194 device_printf(dev, "cannot allocate bus resource.");
1197 via->st = rman_get_bustag(via->reg);
1198 via->sh = rman_get_bushandle(via->reg);
1201 via->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &via->irqid,
1202 RF_ACTIVE | RF_SHAREABLE);
1204 snd_setup_intr(dev, via->irq, INTR_MPSAFE,
1205 via_intr, via, &via->ih)) {
1206 device_printf(dev, "unable to map interrupt\n");
1210 via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536);
1211 if (resource_int_value(device_get_name(dev),
1212 device_get_unit(dev), "blocksize", &i) == 0 && i > 0) {
1214 if (i < VIA_BLK_MIN)
1216 via->blkcnt = via->bufsz / i;
1218 while (via->blkcnt >> i)
1220 via->blkcnt = 1 << (i - 1);
1221 if (via->blkcnt < VIA_SEGS_MIN)
1222 via->blkcnt = VIA_SEGS_MIN;
1223 else if (via->blkcnt > VIA_SEGS_MAX)
1224 via->blkcnt = VIA_SEGS_MAX;
1227 via->blkcnt = VIA_SEGS_DEFAULT;
1229 revid = pci_get_revid(dev);
1232 * VIA8251 lost its interrupt after DMA EOL, and need
1233 * a gentle spank on its face within interrupt handler.
1235 if (revid == VIA8233_REV_ID_8251)
1236 via->dma_eol_wake = 1;
1238 via->dma_eol_wake = 0;
1241 * Decide whether DXS had to be disabled or not
1243 if (revid == VIA8233_REV_ID_8233A) {
1245 * DXS channel is disabled. Reports from multiple users
1246 * that it plays at half-speed. Do not see this behaviour
1247 * on available 8233C or when emulating 8233A register set
1248 * on 8233C (either with or without ac97 VRA).
1250 via_dxs_disabled = 1;
1251 } else if (resource_int_value(device_get_name(dev),
1252 device_get_unit(dev), "via_dxs_disabled",
1253 &via_dxs_disabled) == 0)
1254 via_dxs_disabled = (via_dxs_disabled > 0) ? 1 : 0;
1256 via_dxs_disabled = 0;
1258 if (via_dxs_disabled) {
1262 if (resource_int_value(device_get_name(dev),
1263 device_get_unit(dev), "via_dxs_channels",
1264 &via_dxs_chnum) != 0)
1265 via_dxs_chnum = NDXSCHANS;
1266 if (resource_int_value(device_get_name(dev),
1267 device_get_unit(dev), "via_sgd_channels",
1268 &via_sgd_chnum) != 0)
1269 via_sgd_chnum = NMSGDCHANS;
1271 if (via_dxs_chnum > NDXSCHANS)
1272 via_dxs_chnum = NDXSCHANS;
1273 else if (via_dxs_chnum < 0)
1275 if (via_sgd_chnum > NMSGDCHANS)
1276 via_sgd_chnum = NMSGDCHANS;
1277 else if (via_sgd_chnum < 0)
1279 if (via_dxs_chnum + via_sgd_chnum < 1) {
1284 if (via_dxs_chnum > 0 && resource_int_value(device_get_name(dev),
1285 device_get_unit(dev), "via_dxs_src", &via_dxs_src) == 0)
1286 via->dxs_src = (via_dxs_src > 0) ? 1 : 0;
1290 nsegs = (via_dxs_chnum + via_sgd_chnum + NWRCHANS) * VIA_SEGS_MAX;
1292 /* DMA tag for buffers */
1293 if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
1295 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1296 /*highaddr*/BUS_SPACE_MAXADDR,
1297 /*filter*/NULL, /*filterarg*/NULL,
1298 /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff,
1299 /*flags*/0, /*lockfunc*/NULL,
1300 /*lockarg*/NULL, &via->parent_dmat) != 0) {
1301 device_printf(dev, "unable to create dma tag\n");
1306 * DMA tag for SGD table. The 686 uses scatter/gather DMA and
1307 * requires a list in memory of work to do. We need only 16 bytes
1308 * for this list, and it is wasteful to allocate 16K.
1310 if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2,
1312 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
1313 /*highaddr*/BUS_SPACE_MAXADDR,
1314 /*filter*/NULL, /*filterarg*/NULL,
1315 /*maxsize*/nsegs * sizeof(struct via_dma_op),
1316 /*nsegments*/1, /*maxsegz*/0x3ffff,
1317 /*flags*/0, /*lockfunc*/NULL,
1318 /*lockarg*/NULL, &via->sgd_dmat) != 0) {
1319 device_printf(dev, "unable to create dma tag\n");
1323 if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table,
1324 BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1)
1326 if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table,
1327 nsegs * sizeof(struct via_dma_op), dma_cb, via, 0))
1330 if (via_chip_init(dev))
1333 via->codec = AC97_CREATE(dev, via, via_ac97);
1337 mixer_init(dev, ac97_getmixerclass(), via->codec);
1339 via->codec_caps = ac97_getextcaps(via->codec);
1341 /* Try to set VRA without generating an error, VRM not reqrd yet */
1342 if (via->codec_caps &
1343 (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM | AC97_EXTCAP_DRA)) {
1344 uint16_t ext = ac97_getextmode(via->codec);
1345 ext |= (via->codec_caps &
1346 (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM));
1347 ext &= ~AC97_EXTCAP_DRA;
1348 ac97_setextmode(via->codec, ext);
1351 snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s",
1352 rman_get_start(via->reg), rman_get_start(via->irq),
1353 PCM_KLDSTRING(snd_via8233));
1356 if (pcm_register(dev, via, via_dxs_chnum + via_sgd_chnum, NWRCHANS))
1358 for (i = 0; i < via_dxs_chnum; i++)
1359 pcm_addchan(dev, PCMDIR_PLAY, &via8233dxs_class, via);
1360 for (i = 0; i < via_sgd_chnum; i++)
1361 pcm_addchan(dev, PCMDIR_PLAY, &via8233msgd_class, via);
1362 for (i = 0; i < NWRCHANS; i++)
1363 pcm_addchan(dev, PCMDIR_REC, &via8233wr_class, via);
1364 if (via_dxs_chnum > 0)
1365 via_init_sysctls(dev);
1366 device_printf(dev, "<VIA DXS %sabled: DXS%s %d / SGD %d / REC %d>\n",
1367 (via_dxs_chnum > 0) ? "En" : "Dis", (via->dxs_src) ? "(SRC)" : "",
1368 via_dxs_chnum, via_sgd_chnum, NWRCHANS);
1370 pcm_setstatus(dev, status);
1375 ac97_destroy(via->codec);
1377 bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
1379 bus_teardown_intr(dev, via->irq, via->ih);
1381 bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
1382 if (via->parent_dmat)
1383 bus_dma_tag_destroy(via->parent_dmat);
1384 if (via->sgd_dmamap)
1385 bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap);
1387 bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap);
1389 bus_dma_tag_destroy(via->sgd_dmat);
1391 snd_mtxfree(via->lock);
1393 free(via, M_DEVBUF);
1398 via_detach(device_t dev)
1401 struct via_info *via;
1403 r = pcm_unregister(dev);
1407 via = pcm_getdevinfo(dev);
1409 if (via != NULL && (via->play_num != 0 || via->rec_num != 0)) {
1410 snd_mtxlock(via->lock);
1412 callout_stop(&via->poll_timer);
1413 snd_mtxunlock(via->lock);
1414 callout_drain(&via->poll_timer);
1417 bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg);
1418 bus_teardown_intr(dev, via->irq, via->ih);
1419 bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq);
1420 bus_dma_tag_destroy(via->parent_dmat);
1421 bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap);
1422 bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap);
1423 bus_dma_tag_destroy(via->sgd_dmat);
1424 snd_mtxfree(via->lock);
1425 free(via, M_DEVBUF);
1430 static device_method_t via_methods[] = {
1431 DEVMETHOD(device_probe, via_probe),
1432 DEVMETHOD(device_attach, via_attach),
1433 DEVMETHOD(device_detach, via_detach),
1437 static driver_t via_driver = {
1443 DRIVER_MODULE(snd_via8233, pci, via_driver, pcm_devclass, 0, 0);
1444 MODULE_DEPEND(snd_via8233, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1445 MODULE_VERSION(snd_via8233, 1);