via82c686.c revision 193640
1139749Simp/*- 264439Scg * Copyright (c) 2000 David Jones <dej@ox.org> 364439Scg * All rights reserved. 464439Scg * 564439Scg * Redistribution and use in source and binary forms, with or without 664439Scg * modification, are permitted provided that the following conditions 764439Scg * are met: 864439Scg * 1. Redistributions of source code must retain the above copyright 964439Scg * notice, this list of conditions and the following disclaimer. 1064439Scg * 2. Redistributions in binary form must reproduce the above copyright 1164439Scg * notice, this list of conditions and the following disclaimer in the 1264439Scg * documentation and/or other materials provided with the distribution. 1364439Scg * 1464439Scg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1564439Scg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1664439Scg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1764439Scg * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1864439Scg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1964439Scg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2064439Scg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2164439Scg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2264439Scg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2364439Scg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2464439Scg * SUCH DAMAGE. 2564439Scg */ 2664439Scg 27193640Sariff#ifdef HAVE_KERNEL_OPTION_HEADERS 28193640Sariff#include "opt_snd.h" 29193640Sariff#endif 30193640Sariff 3164439Scg#include <dev/sound/pcm/sound.h> 3264439Scg#include <dev/sound/pcm/ac97.h> 3364439Scg 34119287Simp#include <dev/pci/pcireg.h> 35119287Simp#include <dev/pci/pcivar.h> 3664439Scg#include <sys/sysctl.h> 3764439Scg 3864439Scg#include <dev/sound/pci/via82c686.h> 3964439Scg 4082180ScgSND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pci/via82c686.c 193640 2009-06-07 19:12:08Z ariff $"); 4182180Scg 42102010Sorion#define VIA_PCI_ID 0x30581106 4374763Scg#define NSEGS 4 /* Number of segments in SGD table */ 4464439Scg 4564439Scg#define SEGS_PER_CHAN (NSEGS/2) 4664439Scg 4770346Scg#define TIMEOUT 50 4884658Scg#define VIA_DEFAULT_BUFSZ 0x1000 4970346Scg 5064439Scg#undef DEB 5164439Scg#define DEB(x) 5264439Scg 5370346Scg/* we rely on this struct being packed to 64 bits */ 5470346Scgstruct via_dma_op { 5570346Scg u_int32_t ptr; 5670346Scg u_int32_t flags; 5770346Scg#define VIA_DMAOP_EOL 0x80000000 5870346Scg#define VIA_DMAOP_FLAG 0x40000000 5970346Scg#define VIA_DMAOP_STOP 0x20000000 6070346Scg#define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) 6170346Scg}; 6270346Scg 6364439Scgstruct via_info; 6464439Scg 6564439Scgstruct via_chinfo { 6664439Scg struct via_info *parent; 6774763Scg struct pcm_channel *channel; 6874763Scg struct snd_dbuf *buffer; 6974763Scg struct via_dma_op *sgd_table; 70111183Scognet bus_addr_t sgd_addr; 7174763Scg int dir, blksz; 72102010Sorion int base, count, mode, ctrl; 7364439Scg}; 7464439Scg 7564439Scgstruct via_info { 7664439Scg bus_space_tag_t st; 7764439Scg bus_space_handle_t sh; 7874797Scg bus_dma_tag_t parent_dmat; 7974797Scg bus_dma_tag_t sgd_dmat; 8074763Scg bus_dmamap_t sgd_dmamap; 81111183Scognet bus_addr_t sgd_addr; 8264439Scg 8365644Scg struct resource *reg, *irq; 8465644Scg int regid, irqid; 8565644Scg void *ih; 8674763Scg struct ac97_info *codec; 8765644Scg 8884658Scg unsigned int bufsz; 8984658Scg 9064439Scg struct via_chinfo pch, rch; 9164439Scg struct via_dma_op *sgd_table; 9274797Scg u_int16_t codec_caps; 93148589Snetchild struct mtx *lock; 9464439Scg}; 9564439Scg 9674763Scgstatic u_int32_t via_fmt[] = { 97193640Sariff SND_FORMAT(AFMT_U8, 1, 0), 98193640Sariff SND_FORMAT(AFMT_U8, 2, 0), 99193640Sariff SND_FORMAT(AFMT_S16_LE, 1, 0), 100193640Sariff SND_FORMAT(AFMT_S16_LE, 2, 0), 10164881Scg 0 10264439Scg}; 10374763Scgstatic struct pcmchan_caps via_vracaps = {4000, 48000, via_fmt, 0}; 10474763Scgstatic struct pcmchan_caps via_caps = {48000, 48000, via_fmt, 0}; 10564439Scg 106150980Snetchildstatic __inline u_int32_t 10764439Scgvia_rd(struct via_info *via, int regno, int size) 10864439Scg{ 109102010Sorion 11064439Scg switch (size) { 11164439Scg case 1: 11264439Scg return bus_space_read_1(via->st, via->sh, regno); 11364439Scg case 2: 11464439Scg return bus_space_read_2(via->st, via->sh, regno); 11564439Scg case 4: 11664439Scg return bus_space_read_4(via->st, via->sh, regno); 11764439Scg default: 11864439Scg return 0xFFFFFFFF; 11964439Scg } 12064439Scg} 12164439Scg 12264439Scg 123150980Snetchildstatic __inline void 12464439Scgvia_wr(struct via_info *via, int regno, u_int32_t data, int size) 12564439Scg{ 12664439Scg 12764439Scg switch (size) { 12864439Scg case 1: 12964439Scg bus_space_write_1(via->st, via->sh, regno, data); 13064439Scg break; 13164439Scg case 2: 13264439Scg bus_space_write_2(via->st, via->sh, regno, data); 13364439Scg break; 13464439Scg case 4: 13564439Scg bus_space_write_4(via->st, via->sh, regno, data); 13664439Scg break; 13764439Scg } 13864439Scg} 13964439Scg 14070134Scg/* -------------------------------------------------------------------- */ 14170134Scg/* Codec interface */ 14264439Scg 14370134Scgstatic int 14464439Scgvia_waitready_codec(struct via_info *via) 14564439Scg{ 14664439Scg int i; 14764439Scg 14864439Scg /* poll until codec not busy */ 14964439Scg for (i = 0; (i < TIMEOUT) && 15064439Scg (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) 15164439Scg DELAY(1); 15264439Scg if (i >= TIMEOUT) { 15364439Scg printf("via: codec busy\n"); 15464439Scg return 1; 15564439Scg } 15664439Scg 15764439Scg return 0; 15864439Scg} 15964439Scg 16064439Scg 16170134Scgstatic int 16264439Scgvia_waitvalid_codec(struct via_info *via) 16364439Scg{ 16464439Scg int i; 16564439Scg 16664439Scg /* poll until codec valid */ 16764439Scg for (i = 0; (i < TIMEOUT) && 16864439Scg !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) 16964439Scg DELAY(1); 17064439Scg if (i >= TIMEOUT) { 17164439Scg printf("via: codec invalid\n"); 17264439Scg return 1; 17364439Scg } 17464439Scg 17564439Scg return 0; 17664439Scg} 17764439Scg 17864439Scg 17970134Scgstatic int 18070134Scgvia_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 18164439Scg{ 18264439Scg struct via_info *via = addr; 18364439Scg 18470134Scg if (via_waitready_codec(via)) return -1; 18564439Scg 186102010Sorion via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); 18770134Scg 18870134Scg return 0; 18964439Scg} 19064439Scg 19164439Scg 19270134Scgstatic int 19370134Scgvia_read_codec(kobj_t obj, void *addr, int reg) 19464439Scg{ 19564439Scg struct via_info *via = addr; 19664439Scg 19764439Scg if (via_waitready_codec(via)) 19874763Scg return -1; 19964439Scg 20074763Scg via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); 20164439Scg 20264439Scg if (via_waitready_codec(via)) 20374763Scg return -1; 20464439Scg 20564439Scg if (via_waitvalid_codec(via)) 20674763Scg return -1; 20764439Scg 20864439Scg return via_rd(via, VIA_CODEC_CTL, 2); 20964439Scg} 21064439Scg 21170134Scgstatic kobj_method_t via_ac97_methods[] = { 21270134Scg KOBJMETHOD(ac97_read, via_read_codec), 21370134Scg KOBJMETHOD(ac97_write, via_write_codec), 214193640Sariff KOBJMETHOD_END 21570134Scg}; 21670134ScgAC97_DECLARE(via_ac97); 21764439Scg 21870134Scg/* -------------------------------------------------------------------- */ 21970134Scg 22064439Scgstatic int 22174763Scgvia_buildsgdt(struct via_chinfo *ch) 22264439Scg{ 22374763Scg u_int32_t phys_addr, flag; 22474763Scg int i, segs, seg_size; 22564439Scg 22664439Scg /* 22764439Scg * Build the scatter/gather DMA (SGD) table. 22864439Scg * There are four slots in the table: two for play, two for record. 22964439Scg * This creates two half-buffers, one of which is playing; the other 23064439Scg * is feeding. 23164439Scg */ 23274763Scg seg_size = ch->blksz; 23374763Scg segs = sndbuf_getsize(ch->buffer) / seg_size; 234111183Scognet phys_addr = sndbuf_getbufaddr(ch->buffer); 23564439Scg 23674763Scg for (i = 0; i < segs; i++) { 23774763Scg flag = (i == segs - 1)? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 23874763Scg ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 23974763Scg ch->sgd_table[i].flags = flag | seg_size; 24064439Scg } 24164439Scg 24264439Scg return 0; 24364439Scg} 24464439Scg 24574763Scg/* channel interface */ 24674763Scgstatic void * 247102010Sorionviachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 24874763Scg{ 24974763Scg struct via_info *via = devinfo; 250111198Sorion struct via_chinfo *ch; 25174763Scg 252148589Snetchild snd_mtxlock(via->lock); 253111198Sorion if (dir == PCMDIR_PLAY) { 254111198Sorion ch = &via->pch; 255102010Sorion ch->base = VIA_PLAY_DMAOPS_BASE; 256102010Sorion ch->count = VIA_PLAY_DMAOPS_COUNT; 257102010Sorion ch->ctrl = VIA_PLAY_CONTROL; 258102010Sorion ch->mode = VIA_PLAY_MODE; 259111198Sorion ch->sgd_addr = via->sgd_addr; 260111198Sorion ch->sgd_table = &via->sgd_table[0]; 26174763Scg } else { 262111198Sorion ch = &via->rch; 263102010Sorion ch->base = VIA_RECORD_DMAOPS_BASE; 264102010Sorion ch->count = VIA_RECORD_DMAOPS_COUNT; 265102010Sorion ch->ctrl = VIA_RECORD_CONTROL; 266102010Sorion ch->mode = VIA_RECORD_MODE; 267111198Sorion ch->sgd_addr = via->sgd_addr + sizeof(struct via_dma_op) * SEGS_PER_CHAN; 268111198Sorion ch->sgd_table = &via->sgd_table[SEGS_PER_CHAN]; 26974763Scg } 27074763Scg 271111198Sorion ch->parent = via; 272111198Sorion ch->channel = c; 273111198Sorion ch->buffer = b; 274111198Sorion ch->dir = dir; 275148593Snetchild snd_mtxunlock(via->lock); 276111198Sorion 277168847Sariff if (sndbuf_alloc(ch->buffer, via->parent_dmat, 0, via->bufsz) != 0) 27874763Scg return NULL; 279148589Snetchild 28074763Scg return ch; 28174763Scg} 28274763Scg 28364439Scgstatic int 28470134Scgviachan_setformat(kobj_t obj, void *data, u_int32_t format) 28564439Scg{ 28664439Scg struct via_chinfo *ch = data; 28764439Scg struct via_info *via = ch->parent; 288102010Sorion int mode, mode_set; 28964439Scg 290102010Sorion mode_set = 0; 291193640Sariff if (AFMT_CHANNEL(format) > 1) 292102010Sorion mode_set |= VIA_RPMODE_STEREO; 29364439Scg if (format & AFMT_S16_LE) 294102010Sorion mode_set |= VIA_RPMODE_16BIT; 29564439Scg 296102010Sorion DEB(printf("set format: dir = %d, format=%x\n", ch->dir, format)); 297150980Snetchild snd_mtxlock(via->lock); 298102010Sorion mode = via_rd(via, ch->mode, 1); 299102010Sorion mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); 300102010Sorion mode |= mode_set; 301102010Sorion via_wr(via, ch->mode, mode, 1); 302150980Snetchild snd_mtxunlock(via->lock); 303102010Sorion 30464439Scg return 0; 30564439Scg} 30664439Scg 307193640Sariffstatic u_int32_t 30870134Scgviachan_setspeed(kobj_t obj, void *data, u_int32_t speed) 30964439Scg{ 31064439Scg struct via_chinfo *ch = data; 31164439Scg struct via_info *via = ch->parent; 31274763Scg int reg; 31364439Scg 31464439Scg /* 31564439Scg * Basic AC'97 defines a 48 kHz sample rate only. For other rates, 31664439Scg * upsampling is required. 31764439Scg * 31864439Scg * The VT82C686A does not perform upsampling, and neither do we. 31964439Scg * If the codec supports variable-rate audio (i.e. does the upsampling 32064439Scg * itself), then negotiate the rate with the codec. Otherwise, 32164439Scg * return 48 kHz cuz that's all you got. 32264439Scg */ 32374763Scg if (via->codec_caps & AC97_EXTCAP_VRA) { 32474763Scg reg = (ch->dir == PCMDIR_PLAY)? AC97_REGEXT_FDACRATE : AC97_REGEXT_LADCRATE; 32574763Scg return ac97_setrate(via->codec, reg, speed); 32674763Scg } else 32774763Scg return 48000; 32864439Scg} 32964439Scg 330193640Sariffstatic u_int32_t 33170134Scgviachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 33264439Scg{ 33364439Scg struct via_chinfo *ch = data; 33464439Scg 33574763Scg ch->blksz = blocksize; 33674763Scg sndbuf_resize(ch->buffer, SEGS_PER_CHAN, ch->blksz); 33774763Scg 33874763Scg return ch->blksz; 33964439Scg} 34064439Scg 34164439Scgstatic int 34270134Scgviachan_trigger(kobj_t obj, void *data, int go) 34364439Scg{ 34464439Scg struct via_chinfo *ch = data; 34564439Scg struct via_info *via = ch->parent; 346102010Sorion struct via_dma_op *ado; 347111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 34864439Scg 349170521Sariff if (!PCMTRIG_COMMON(go)) 350102010Sorion return 0; 351102010Sorion 352102010Sorion ado = ch->sgd_table; 353111183Scognet DEB(printf("ado located at va=%p pa=%x\n", ado, sgd_addr)); 354102010Sorion 355150980Snetchild snd_mtxlock(via->lock); 356102010Sorion if (go == PCMTRIG_START) { 35774763Scg via_buildsgdt(ch); 358111183Scognet via_wr(via, ch->base, sgd_addr, 4); 359102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_START, 1); 360102010Sorion } else 361102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_TERMINATE, 1); 362150980Snetchild snd_mtxunlock(via->lock); 363102010Sorion 364102010Sorion DEB(printf("viachan_trigger: go=%d\n", go)); 36564439Scg return 0; 36664439Scg} 36764439Scg 368193640Sariffstatic u_int32_t 36970134Scgviachan_getptr(kobj_t obj, void *data) 37064439Scg{ 37164439Scg struct via_chinfo *ch = data; 37264439Scg struct via_info *via = ch->parent; 37364439Scg struct via_dma_op *ado; 374111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 375193640Sariff u_int32_t ptr, base, base1, len, seg; 37664439Scg 37774763Scg ado = ch->sgd_table; 378150980Snetchild snd_mtxlock(via->lock); 379102010Sorion base1 = via_rd(via, ch->base, 4); 380102010Sorion len = via_rd(via, ch->count, 4); 381102010Sorion base = via_rd(via, ch->base, 4); 38274763Scg if (base != base1) /* Avoid race hazard */ 383102010Sorion len = via_rd(via, ch->count, 4); 384150980Snetchild snd_mtxunlock(via->lock); 38564439Scg 38674797Scg DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); 38764439Scg 38874763Scg /* Base points to SGD segment to do, one past current */ 38964439Scg 39074797Scg /* Determine how many segments have been done */ 391111183Scognet seg = (base - sgd_addr) / sizeof(struct via_dma_op); 39274763Scg if (seg == 0) 39374763Scg seg = SEGS_PER_CHAN; 39464439Scg 39574797Scg /* Now work out offset: seg less count */ 39674763Scg ptr = (seg * sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN) - len; 39774763Scg if (ch->dir == PCMDIR_REC) { 39864439Scg /* DMA appears to operate on memory 'lines' of 32 bytes */ 39964439Scg /* so don't return any part line - it isn't in RAM yet */ 40064439Scg ptr = ptr & ~0x1f; 40174763Scg } 40274763Scg 403193640Sariff DEB(printf("return ptr=%u\n", ptr)); 40474797Scg return ptr; 40564439Scg} 40664439Scg 40774763Scgstatic struct pcmchan_caps * 40870134Scgviachan_getcaps(kobj_t obj, void *data) 40964439Scg{ 41064439Scg struct via_chinfo *ch = data; 41174763Scg struct via_info *via = ch->parent; 41274763Scg 41374763Scg return (via->codec_caps & AC97_EXTCAP_VRA)? &via_vracaps : &via_caps; 41464439Scg} 41564439Scg 41670134Scgstatic kobj_method_t viachan_methods[] = { 41770134Scg KOBJMETHOD(channel_init, viachan_init), 41870134Scg KOBJMETHOD(channel_setformat, viachan_setformat), 41970134Scg KOBJMETHOD(channel_setspeed, viachan_setspeed), 42070134Scg KOBJMETHOD(channel_setblocksize, viachan_setblocksize), 42170134Scg KOBJMETHOD(channel_trigger, viachan_trigger), 42270134Scg KOBJMETHOD(channel_getptr, viachan_getptr), 42370134Scg KOBJMETHOD(channel_getcaps, viachan_getcaps), 424193640Sariff KOBJMETHOD_END 42570134Scg}; 42670134ScgCHANNEL_DECLARE(viachan); 42770134Scg 42870134Scg/* -------------------------------------------------------------------- */ 42970134Scg 43064439Scgstatic void 43164439Scgvia_intr(void *p) 43264439Scg{ 43364439Scg struct via_info *via = p; 43464439Scg 435102010Sorion /* DEB(printf("viachan_intr\n")); */ 436102010Sorion /* Read channel */ 437148589Snetchild snd_mtxlock(via->lock); 438148589Snetchild if (via_rd(via, VIA_PLAY_STAT, 1) & VIA_RPSTAT_INTR) { 439102010Sorion via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1); 440148589Snetchild snd_mtxunlock(via->lock); 44164439Scg chn_intr(via->pch.channel); 442148589Snetchild snd_mtxlock(via->lock); 44364439Scg } 444102010Sorion 445102010Sorion /* Write channel */ 446148589Snetchild if (via_rd(via, VIA_RECORD_STAT, 1) & VIA_RPSTAT_INTR) { 447102010Sorion via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1); 448148589Snetchild snd_mtxunlock(via->lock); 44964439Scg chn_intr(via->rch.channel); 450148589Snetchild return; 45164439Scg } 452148589Snetchild snd_mtxunlock(via->lock); 45364439Scg} 45464439Scg 45570134Scg/* 45670134Scg * Probe and attach the card 45770134Scg */ 45870134Scgstatic int 45970134Scgvia_probe(device_t dev) 46070134Scg{ 461102010Sorion if (pci_get_devid(dev) == VIA_PCI_ID) { 462142890Simp device_set_desc(dev, "VIA VT82C686A"); 463142890Simp return BUS_PROBE_DEFAULT; 46470134Scg } 46570134Scg return ENXIO; 46670134Scg} 46764439Scg 46870134Scg 46974763Scgstatic void 47074763Scgdma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 47170134Scg{ 472111183Scognet struct via_info *via = (struct via_info *)p; 473111183Scognet via->sgd_addr = bds->ds_addr; 47470134Scg} 47570134Scg 476102010Sorion 47770134Scgstatic int 47870134Scgvia_attach(device_t dev) 47970134Scg{ 48070134Scg struct via_info *via = 0; 48174797Scg char status[SND_STATUSLEN]; 482112672Sorion u_int32_t data, cnt; 48370134Scg 484170873Sariff via = malloc(sizeof(*via), M_DEVBUF, M_WAITOK | M_ZERO); 485167608Sariff via->lock = snd_mtxcreate(device_get_nameunit(dev), 486167608Sariff "snd_via82c686 softc"); 48770134Scg 48870134Scg /* Get resources */ 48970134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 49070134Scg data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); 49170134Scg pci_write_config(dev, PCIR_COMMAND, data, 2); 49270134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 49370134Scg 494111898Sorion /* Wake up and reset AC97 if necessary */ 495112672Sorion data = pci_read_config(dev, VIA_AC97STATUS, 1); 496112748Sorion 497112672Sorion if ((data & VIA_AC97STATUS_RDY) == 0) { 498112672Sorion /* Cold reset per ac97r2.3 spec (page 95) */ 499112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 500112748Sorion DELAY(100); /* Wait T_rst_low */ 501112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_NRST, 1); /* Assert high */ 502112748Sorion DELAY(5); /* Wait T_rst2clk */ 503112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 504112748Sorion } else { 505112748Sorion /* Warm reset */ 506112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 507112748Sorion DELAY(100); 508112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_SYNC, 1); /* Sync */ 509112748Sorion DELAY(5); /* Wait T_sync_high */ 510112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 511112748Sorion DELAY(5); /* Wait T_sync2clk */ 512112748Sorion } 51370134Scg 514112748Sorion /* Power everything up */ 515112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_DESIRED, 1); 516112672Sorion 517112748Sorion /* Wait for codec to become ready (largest reported delay here 310ms) */ 518112748Sorion for (cnt = 0; cnt < 2000; cnt++) { 519112748Sorion data = pci_read_config(dev, VIA_AC97STATUS, 1); 520112748Sorion if (data & VIA_AC97STATUS_RDY) 521112748Sorion break; 522112748Sorion DELAY(5000); 523111898Sorion } 524111898Sorion 525119690Sjhb via->regid = PCIR_BAR(0); 526127135Snjl via->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 527127135Snjl &via->regid, RF_ACTIVE); 52870134Scg if (!via->reg) { 52970345Scg device_printf(dev, "cannot allocate bus resource."); 53070134Scg goto bad; 53170134Scg } 53270134Scg via->st = rman_get_bustag(via->reg); 53370134Scg via->sh = rman_get_bushandle(via->reg); 53470134Scg 53584658Scg via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 53684658Scg 53770134Scg via->irqid = 0; 538127135Snjl via->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &via->irqid, 539127135Snjl RF_ACTIVE | RF_SHAREABLE); 540148589Snetchild if (!via->irq || snd_setup_intr(dev, via->irq, INTR_MPSAFE, via_intr, via, &via->ih)) { 54170134Scg device_printf(dev, "unable to map interrupt\n"); 54270134Scg goto bad; 54370134Scg } 54470134Scg 545102010Sorion via_wr(via, VIA_PLAY_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 546102010Sorion via_wr(via, VIA_RECORD_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 54770134Scg 54874763Scg via->codec = AC97_CREATE(dev, via, via_ac97); 54974763Scg if (!via->codec) 55074763Scg goto bad; 55170134Scg 552111898Sorion if (mixer_init(dev, ac97_getmixerclass(), via->codec)) 553111898Sorion goto bad; 55470134Scg 55574763Scg via->codec_caps = ac97_getextcaps(via->codec); 55686706Sorion ac97_setextmode(via->codec, 55786706Sorion via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 55870134Scg 55970134Scg /* DMA tag for buffers */ 560166904Snetchild if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, 561166904Snetchild /*boundary*/0, 56270134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 56370134Scg /*highaddr*/BUS_SPACE_MAXADDR, 56470134Scg /*filter*/NULL, /*filterarg*/NULL, 56584658Scg /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 566148589Snetchild /*flags*/0, /*lockfunc*/NULL, 567148589Snetchild /*lockarg*/NULL, &via->parent_dmat) != 0) { 56870134Scg device_printf(dev, "unable to create dma tag\n"); 56970134Scg goto bad; 57070134Scg } 57170134Scg 57270134Scg /* 57370134Scg * DMA tag for SGD table. The 686 uses scatter/gather DMA and 57470134Scg * requires a list in memory of work to do. We need only 16 bytes 57570134Scg * for this list, and it is wasteful to allocate 16K. 57670134Scg */ 577166904Snetchild if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, 578166904Snetchild /*boundary*/0, 57970134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 58070134Scg /*highaddr*/BUS_SPACE_MAXADDR, 58170134Scg /*filter*/NULL, /*filterarg*/NULL, 58270134Scg /*maxsize*/NSEGS * sizeof(struct via_dma_op), 58370134Scg /*nsegments*/1, /*maxsegz*/0x3ffff, 584148589Snetchild /*flags*/0, /*lockfunc*/NULL, 585148589Snetchild /*lockarg*/NULL, &via->sgd_dmat) != 0) { 58670134Scg device_printf(dev, "unable to create dma tag\n"); 58770134Scg goto bad; 58870134Scg } 58970134Scg 590131587Sbms if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, 591131587Sbms BUS_DMA_NOWAIT, &via->sgd_dmamap) != 0) 59274763Scg goto bad; 593131587Sbms if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, 594131587Sbms NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0) != 0) 59574763Scg goto bad; 59670134Scg 597126695Smatk snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s", 598126695Smatk rman_get_start(via->reg), rman_get_start(via->irq), 599126695Smatk PCM_KLDSTRING(snd_via82c686)); 60070134Scg 60170134Scg /* Register */ 60270134Scg if (pcm_register(dev, via, 1, 1)) goto bad; 603102010Sorion pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); 604102010Sorion pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); 60570134Scg pcm_setstatus(dev, status); 60670134Scg return 0; 60770134Scgbad: 60874763Scg if (via->codec) ac97_destroy(via->codec); 60970134Scg if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 61070134Scg if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 61170134Scg if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 61270134Scg if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 61374763Scg if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 614167773Sariff if (via->sgd_table) bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap); 61570134Scg if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 616148589Snetchild if (via->lock) snd_mtxfree(via->lock); 61770134Scg if (via) free(via, M_DEVBUF); 61870134Scg return ENXIO; 61970134Scg} 62070134Scg 62170134Scgstatic int 62270134Scgvia_detach(device_t dev) 62370134Scg{ 62470134Scg int r; 62570134Scg struct via_info *via = 0; 62670134Scg 62770134Scg r = pcm_unregister(dev); 62870134Scg if (r) 62970134Scg return r; 63070134Scg 63170134Scg via = pcm_getdevinfo(dev); 63270134Scg bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 63370134Scg bus_teardown_intr(dev, via->irq, via->ih); 63470134Scg bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 63570134Scg bus_dma_tag_destroy(via->parent_dmat); 63674763Scg bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 637167773Sariff bus_dmamem_free(via->sgd_dmat, via->sgd_table, via->sgd_dmamap); 63870134Scg bus_dma_tag_destroy(via->sgd_dmat); 639148589Snetchild snd_mtxfree(via->lock); 64070134Scg free(via, M_DEVBUF); 64170134Scg return 0; 64270134Scg} 64370134Scg 64470134Scg 64570134Scgstatic device_method_t via_methods[] = { 64670134Scg DEVMETHOD(device_probe, via_probe), 64770134Scg DEVMETHOD(device_attach, via_attach), 64870134Scg DEVMETHOD(device_detach, via_detach), 64970134Scg { 0, 0} 65070134Scg}; 65170134Scg 65270134Scgstatic driver_t via_driver = { 65370134Scg "pcm", 65470134Scg via_methods, 65582180Scg PCM_SOFTC_SIZE, 65670134Scg}; 65770134Scg 65885441SjhbDRIVER_MODULE(snd_via82c686, pci, via_driver, pcm_devclass, 0, 0); 659132236StanimuraMODULE_DEPEND(snd_via82c686, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 66085441SjhbMODULE_VERSION(snd_via82c686, 1); 661