via82c686.c revision 167608
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 2764439Scg#include <dev/sound/pcm/sound.h> 2864439Scg#include <dev/sound/pcm/ac97.h> 2964439Scg 30119287Simp#include <dev/pci/pcireg.h> 31119287Simp#include <dev/pci/pcivar.h> 3264439Scg#include <sys/sysctl.h> 3364439Scg 3464439Scg#include <dev/sound/pci/via82c686.h> 3564439Scg 3682180ScgSND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pci/via82c686.c 167608 2007-03-15 16:41:27Z ariff $"); 3782180Scg 38102010Sorion#define VIA_PCI_ID 0x30581106 3974763Scg#define NSEGS 4 /* Number of segments in SGD table */ 4064439Scg 4164439Scg#define SEGS_PER_CHAN (NSEGS/2) 4264439Scg 4370346Scg#define TIMEOUT 50 4484658Scg#define VIA_DEFAULT_BUFSZ 0x1000 4570346Scg 4664439Scg#undef DEB 4764439Scg#define DEB(x) 4864439Scg 4970346Scg/* we rely on this struct being packed to 64 bits */ 5070346Scgstruct via_dma_op { 5170346Scg u_int32_t ptr; 5270346Scg u_int32_t flags; 5370346Scg#define VIA_DMAOP_EOL 0x80000000 5470346Scg#define VIA_DMAOP_FLAG 0x40000000 5570346Scg#define VIA_DMAOP_STOP 0x20000000 5670346Scg#define VIA_DMAOP_COUNT(x) ((x)&0x00FFFFFF) 5770346Scg}; 5870346Scg 5964439Scgstruct via_info; 6064439Scg 6164439Scgstruct via_chinfo { 6264439Scg struct via_info *parent; 6374763Scg struct pcm_channel *channel; 6474763Scg struct snd_dbuf *buffer; 6574763Scg struct via_dma_op *sgd_table; 66111183Scognet bus_addr_t sgd_addr; 6774763Scg int dir, blksz; 68102010Sorion int base, count, mode, ctrl; 6964439Scg}; 7064439Scg 7164439Scgstruct via_info { 7264439Scg bus_space_tag_t st; 7364439Scg bus_space_handle_t sh; 7474797Scg bus_dma_tag_t parent_dmat; 7574797Scg bus_dma_tag_t sgd_dmat; 7674763Scg bus_dmamap_t sgd_dmamap; 77111183Scognet bus_addr_t sgd_addr; 7864439Scg 7965644Scg struct resource *reg, *irq; 8065644Scg int regid, irqid; 8165644Scg void *ih; 8274763Scg struct ac97_info *codec; 8365644Scg 8484658Scg unsigned int bufsz; 8584658Scg 8664439Scg struct via_chinfo pch, rch; 8764439Scg struct via_dma_op *sgd_table; 8874797Scg u_int16_t codec_caps; 89148589Snetchild struct mtx *lock; 9064439Scg}; 9164439Scg 9274763Scgstatic u_int32_t via_fmt[] = { 9364881Scg AFMT_U8, 9464881Scg AFMT_STEREO | AFMT_U8, 9564881Scg AFMT_S16_LE, 9664881Scg AFMT_STEREO | AFMT_S16_LE, 9764881Scg 0 9864439Scg}; 9974763Scgstatic struct pcmchan_caps via_vracaps = {4000, 48000, via_fmt, 0}; 10074763Scgstatic struct pcmchan_caps via_caps = {48000, 48000, via_fmt, 0}; 10164439Scg 102150980Snetchildstatic __inline u_int32_t 10364439Scgvia_rd(struct via_info *via, int regno, int size) 10464439Scg{ 105102010Sorion 10664439Scg switch (size) { 10764439Scg case 1: 10864439Scg return bus_space_read_1(via->st, via->sh, regno); 10964439Scg case 2: 11064439Scg return bus_space_read_2(via->st, via->sh, regno); 11164439Scg case 4: 11264439Scg return bus_space_read_4(via->st, via->sh, regno); 11364439Scg default: 11464439Scg return 0xFFFFFFFF; 11564439Scg } 11664439Scg} 11764439Scg 11864439Scg 119150980Snetchildstatic __inline void 12064439Scgvia_wr(struct via_info *via, int regno, u_int32_t data, int size) 12164439Scg{ 12264439Scg 12364439Scg switch (size) { 12464439Scg case 1: 12564439Scg bus_space_write_1(via->st, via->sh, regno, data); 12664439Scg break; 12764439Scg case 2: 12864439Scg bus_space_write_2(via->st, via->sh, regno, data); 12964439Scg break; 13064439Scg case 4: 13164439Scg bus_space_write_4(via->st, via->sh, regno, data); 13264439Scg break; 13364439Scg } 13464439Scg} 13564439Scg 13670134Scg/* -------------------------------------------------------------------- */ 13770134Scg/* Codec interface */ 13864439Scg 13970134Scgstatic int 14064439Scgvia_waitready_codec(struct via_info *via) 14164439Scg{ 14264439Scg int i; 14364439Scg 14464439Scg /* poll until codec not busy */ 14564439Scg for (i = 0; (i < TIMEOUT) && 14664439Scg (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) 14764439Scg DELAY(1); 14864439Scg if (i >= TIMEOUT) { 14964439Scg printf("via: codec busy\n"); 15064439Scg return 1; 15164439Scg } 15264439Scg 15364439Scg return 0; 15464439Scg} 15564439Scg 15664439Scg 15770134Scgstatic int 15864439Scgvia_waitvalid_codec(struct via_info *via) 15964439Scg{ 16064439Scg int i; 16164439Scg 16264439Scg /* poll until codec valid */ 16364439Scg for (i = 0; (i < TIMEOUT) && 16464439Scg !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) 16564439Scg DELAY(1); 16664439Scg if (i >= TIMEOUT) { 16764439Scg printf("via: codec invalid\n"); 16864439Scg return 1; 16964439Scg } 17064439Scg 17164439Scg return 0; 17264439Scg} 17364439Scg 17464439Scg 17570134Scgstatic int 17670134Scgvia_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 17764439Scg{ 17864439Scg struct via_info *via = addr; 17964439Scg 18070134Scg if (via_waitready_codec(via)) return -1; 18164439Scg 182102010Sorion via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); 18370134Scg 18470134Scg return 0; 18564439Scg} 18664439Scg 18764439Scg 18870134Scgstatic int 18970134Scgvia_read_codec(kobj_t obj, void *addr, int reg) 19064439Scg{ 19164439Scg struct via_info *via = addr; 19264439Scg 19364439Scg if (via_waitready_codec(via)) 19474763Scg return -1; 19564439Scg 19674763Scg via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); 19764439Scg 19864439Scg if (via_waitready_codec(via)) 19974763Scg return -1; 20064439Scg 20164439Scg if (via_waitvalid_codec(via)) 20274763Scg return -1; 20364439Scg 20464439Scg return via_rd(via, VIA_CODEC_CTL, 2); 20564439Scg} 20664439Scg 20770134Scgstatic kobj_method_t via_ac97_methods[] = { 20870134Scg KOBJMETHOD(ac97_read, via_read_codec), 20970134Scg KOBJMETHOD(ac97_write, via_write_codec), 21070134Scg { 0, 0 } 21170134Scg}; 21270134ScgAC97_DECLARE(via_ac97); 21364439Scg 21470134Scg/* -------------------------------------------------------------------- */ 21570134Scg 21664439Scgstatic int 21774763Scgvia_buildsgdt(struct via_chinfo *ch) 21864439Scg{ 21974763Scg u_int32_t phys_addr, flag; 22074763Scg int i, segs, seg_size; 22164439Scg 22264439Scg /* 22364439Scg * Build the scatter/gather DMA (SGD) table. 22464439Scg * There are four slots in the table: two for play, two for record. 22564439Scg * This creates two half-buffers, one of which is playing; the other 22664439Scg * is feeding. 22764439Scg */ 22874763Scg seg_size = ch->blksz; 22974763Scg segs = sndbuf_getsize(ch->buffer) / seg_size; 230111183Scognet phys_addr = sndbuf_getbufaddr(ch->buffer); 23164439Scg 23274763Scg for (i = 0; i < segs; i++) { 23374763Scg flag = (i == segs - 1)? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 23474763Scg ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 23574763Scg ch->sgd_table[i].flags = flag | seg_size; 23664439Scg } 23764439Scg 23864439Scg return 0; 23964439Scg} 24064439Scg 24174763Scg/* channel interface */ 24274763Scgstatic void * 243102010Sorionviachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 24474763Scg{ 24574763Scg struct via_info *via = devinfo; 246111198Sorion struct via_chinfo *ch; 24774763Scg 248148589Snetchild snd_mtxlock(via->lock); 249111198Sorion if (dir == PCMDIR_PLAY) { 250111198Sorion ch = &via->pch; 251102010Sorion ch->base = VIA_PLAY_DMAOPS_BASE; 252102010Sorion ch->count = VIA_PLAY_DMAOPS_COUNT; 253102010Sorion ch->ctrl = VIA_PLAY_CONTROL; 254102010Sorion ch->mode = VIA_PLAY_MODE; 255111198Sorion ch->sgd_addr = via->sgd_addr; 256111198Sorion ch->sgd_table = &via->sgd_table[0]; 25774763Scg } else { 258111198Sorion ch = &via->rch; 259102010Sorion ch->base = VIA_RECORD_DMAOPS_BASE; 260102010Sorion ch->count = VIA_RECORD_DMAOPS_COUNT; 261102010Sorion ch->ctrl = VIA_RECORD_CONTROL; 262102010Sorion ch->mode = VIA_RECORD_MODE; 263111198Sorion ch->sgd_addr = via->sgd_addr + sizeof(struct via_dma_op) * SEGS_PER_CHAN; 264111198Sorion ch->sgd_table = &via->sgd_table[SEGS_PER_CHAN]; 26574763Scg } 26674763Scg 267111198Sorion ch->parent = via; 268111198Sorion ch->channel = c; 269111198Sorion ch->buffer = b; 270111198Sorion ch->dir = dir; 271148593Snetchild snd_mtxunlock(via->lock); 272111198Sorion 273148593Snetchild if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) != 0) 27474763Scg return NULL; 275148589Snetchild 27674763Scg return ch; 27774763Scg} 27874763Scg 27964439Scgstatic int 28070134Scgviachan_setformat(kobj_t obj, void *data, u_int32_t format) 28164439Scg{ 28264439Scg struct via_chinfo *ch = data; 28364439Scg struct via_info *via = ch->parent; 284102010Sorion int mode, mode_set; 28564439Scg 286102010Sorion mode_set = 0; 28764439Scg if (format & AFMT_STEREO) 288102010Sorion mode_set |= VIA_RPMODE_STEREO; 28964439Scg if (format & AFMT_S16_LE) 290102010Sorion mode_set |= VIA_RPMODE_16BIT; 29164439Scg 292102010Sorion DEB(printf("set format: dir = %d, format=%x\n", ch->dir, format)); 293150980Snetchild snd_mtxlock(via->lock); 294102010Sorion mode = via_rd(via, ch->mode, 1); 295102010Sorion mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); 296102010Sorion mode |= mode_set; 297102010Sorion via_wr(via, ch->mode, mode, 1); 298150980Snetchild snd_mtxunlock(via->lock); 299102010Sorion 30064439Scg return 0; 30164439Scg} 30264439Scg 30364439Scgstatic int 30470134Scgviachan_setspeed(kobj_t obj, void *data, u_int32_t speed) 30564439Scg{ 30664439Scg struct via_chinfo *ch = data; 30764439Scg struct via_info *via = ch->parent; 30874763Scg int reg; 30964439Scg 31064439Scg /* 31164439Scg * Basic AC'97 defines a 48 kHz sample rate only. For other rates, 31264439Scg * upsampling is required. 31364439Scg * 31464439Scg * The VT82C686A does not perform upsampling, and neither do we. 31564439Scg * If the codec supports variable-rate audio (i.e. does the upsampling 31664439Scg * itself), then negotiate the rate with the codec. Otherwise, 31764439Scg * return 48 kHz cuz that's all you got. 31864439Scg */ 31974763Scg if (via->codec_caps & AC97_EXTCAP_VRA) { 32074763Scg reg = (ch->dir == PCMDIR_PLAY)? AC97_REGEXT_FDACRATE : AC97_REGEXT_LADCRATE; 32174763Scg return ac97_setrate(via->codec, reg, speed); 32274763Scg } else 32374763Scg return 48000; 32464439Scg} 32564439Scg 32664439Scgstatic int 32770134Scgviachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 32864439Scg{ 32964439Scg struct via_chinfo *ch = data; 33064439Scg 33174763Scg ch->blksz = blocksize; 33274763Scg sndbuf_resize(ch->buffer, SEGS_PER_CHAN, ch->blksz); 33374763Scg 33474763Scg return ch->blksz; 33564439Scg} 33664439Scg 33764439Scgstatic int 33870134Scgviachan_trigger(kobj_t obj, void *data, int go) 33964439Scg{ 34064439Scg struct via_chinfo *ch = data; 34164439Scg struct via_info *via = ch->parent; 342102010Sorion struct via_dma_op *ado; 343111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 34464439Scg 345102010Sorion if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 346102010Sorion return 0; 347102010Sorion 348102010Sorion ado = ch->sgd_table; 349111183Scognet DEB(printf("ado located at va=%p pa=%x\n", ado, sgd_addr)); 350102010Sorion 351150980Snetchild snd_mtxlock(via->lock); 352102010Sorion if (go == PCMTRIG_START) { 35374763Scg via_buildsgdt(ch); 354111183Scognet via_wr(via, ch->base, sgd_addr, 4); 355102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_START, 1); 356102010Sorion } else 357102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_TERMINATE, 1); 358150980Snetchild snd_mtxunlock(via->lock); 359102010Sorion 360102010Sorion DEB(printf("viachan_trigger: go=%d\n", go)); 36164439Scg return 0; 36264439Scg} 36364439Scg 36464439Scgstatic int 36570134Scgviachan_getptr(kobj_t obj, void *data) 36664439Scg{ 36764439Scg struct via_chinfo *ch = data; 36864439Scg struct via_info *via = ch->parent; 36964439Scg struct via_dma_op *ado; 370111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 37174763Scg int ptr, base, base1, len, seg; 37264439Scg 37374763Scg ado = ch->sgd_table; 374150980Snetchild snd_mtxlock(via->lock); 375102010Sorion base1 = via_rd(via, ch->base, 4); 376102010Sorion len = via_rd(via, ch->count, 4); 377102010Sorion base = via_rd(via, ch->base, 4); 37874763Scg if (base != base1) /* Avoid race hazard */ 379102010Sorion len = via_rd(via, ch->count, 4); 380150980Snetchild snd_mtxunlock(via->lock); 38164439Scg 38274797Scg DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); 38364439Scg 38474763Scg /* Base points to SGD segment to do, one past current */ 38564439Scg 38674797Scg /* Determine how many segments have been done */ 387111183Scognet seg = (base - sgd_addr) / sizeof(struct via_dma_op); 38874763Scg if (seg == 0) 38974763Scg seg = SEGS_PER_CHAN; 39064439Scg 39174797Scg /* Now work out offset: seg less count */ 39274763Scg ptr = (seg * sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN) - len; 39374763Scg if (ch->dir == PCMDIR_REC) { 39464439Scg /* DMA appears to operate on memory 'lines' of 32 bytes */ 39564439Scg /* so don't return any part line - it isn't in RAM yet */ 39664439Scg ptr = ptr & ~0x1f; 39774763Scg } 39874763Scg 39974797Scg DEB(printf("return ptr=%d\n", ptr)); 40074797Scg return ptr; 40164439Scg} 40264439Scg 40374763Scgstatic struct pcmchan_caps * 40470134Scgviachan_getcaps(kobj_t obj, void *data) 40564439Scg{ 40664439Scg struct via_chinfo *ch = data; 40774763Scg struct via_info *via = ch->parent; 40874763Scg 40974763Scg return (via->codec_caps & AC97_EXTCAP_VRA)? &via_vracaps : &via_caps; 41064439Scg} 41164439Scg 41270134Scgstatic kobj_method_t viachan_methods[] = { 41370134Scg KOBJMETHOD(channel_init, viachan_init), 41470134Scg KOBJMETHOD(channel_setformat, viachan_setformat), 41570134Scg KOBJMETHOD(channel_setspeed, viachan_setspeed), 41670134Scg KOBJMETHOD(channel_setblocksize, viachan_setblocksize), 41770134Scg KOBJMETHOD(channel_trigger, viachan_trigger), 41870134Scg KOBJMETHOD(channel_getptr, viachan_getptr), 41970134Scg KOBJMETHOD(channel_getcaps, viachan_getcaps), 42070134Scg { 0, 0 } 42170134Scg}; 42270134ScgCHANNEL_DECLARE(viachan); 42370134Scg 42470134Scg/* -------------------------------------------------------------------- */ 42570134Scg 42664439Scgstatic void 42764439Scgvia_intr(void *p) 42864439Scg{ 42964439Scg struct via_info *via = p; 43064439Scg 431102010Sorion /* DEB(printf("viachan_intr\n")); */ 432102010Sorion /* Read channel */ 433148589Snetchild snd_mtxlock(via->lock); 434148589Snetchild if (via_rd(via, VIA_PLAY_STAT, 1) & VIA_RPSTAT_INTR) { 435102010Sorion via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1); 436148589Snetchild snd_mtxunlock(via->lock); 43764439Scg chn_intr(via->pch.channel); 438148589Snetchild snd_mtxlock(via->lock); 43964439Scg } 440102010Sorion 441102010Sorion /* Write channel */ 442148589Snetchild if (via_rd(via, VIA_RECORD_STAT, 1) & VIA_RPSTAT_INTR) { 443102010Sorion via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1); 444148589Snetchild snd_mtxunlock(via->lock); 44564439Scg chn_intr(via->rch.channel); 446148589Snetchild return; 44764439Scg } 448148589Snetchild snd_mtxunlock(via->lock); 44964439Scg} 45064439Scg 45170134Scg/* 45270134Scg * Probe and attach the card 45370134Scg */ 45470134Scgstatic int 45570134Scgvia_probe(device_t dev) 45670134Scg{ 457102010Sorion if (pci_get_devid(dev) == VIA_PCI_ID) { 458142890Simp device_set_desc(dev, "VIA VT82C686A"); 459142890Simp return BUS_PROBE_DEFAULT; 46070134Scg } 46170134Scg return ENXIO; 46270134Scg} 46364439Scg 46470134Scg 46574763Scgstatic void 46674763Scgdma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 46770134Scg{ 468111183Scognet struct via_info *via = (struct via_info *)p; 469111183Scognet via->sgd_addr = bds->ds_addr; 47070134Scg} 47170134Scg 472102010Sorion 47370134Scgstatic int 47470134Scgvia_attach(device_t dev) 47570134Scg{ 47670134Scg struct via_info *via = 0; 47774797Scg char status[SND_STATUSLEN]; 478112672Sorion u_int32_t data, cnt; 47970134Scg 48078564Sgreid if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) { 48170134Scg device_printf(dev, "cannot allocate softc\n"); 48270134Scg return ENXIO; 48370134Scg } 484167608Sariff via->lock = snd_mtxcreate(device_get_nameunit(dev), 485167608Sariff "snd_via82c686 softc"); 48670134Scg 48770134Scg /* Get resources */ 48870134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 48970134Scg data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); 49070134Scg pci_write_config(dev, PCIR_COMMAND, data, 2); 49170134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 49270134Scg 493111898Sorion /* Wake up and reset AC97 if necessary */ 494112672Sorion data = pci_read_config(dev, VIA_AC97STATUS, 1); 495112748Sorion 496112672Sorion if ((data & VIA_AC97STATUS_RDY) == 0) { 497112672Sorion /* Cold reset per ac97r2.3 spec (page 95) */ 498112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 499112748Sorion DELAY(100); /* Wait T_rst_low */ 500112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_NRST, 1); /* Assert high */ 501112748Sorion DELAY(5); /* Wait T_rst2clk */ 502112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */ 503112748Sorion } else { 504112748Sorion /* Warm reset */ 505112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 506112748Sorion DELAY(100); 507112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_SYNC, 1); /* Sync */ 508112748Sorion DELAY(5); /* Wait T_sync_high */ 509112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */ 510112748Sorion DELAY(5); /* Wait T_sync2clk */ 511112748Sorion } 51270134Scg 513112748Sorion /* Power everything up */ 514112748Sorion pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_DESIRED, 1); 515112672Sorion 516112748Sorion /* Wait for codec to become ready (largest reported delay here 310ms) */ 517112748Sorion for (cnt = 0; cnt < 2000; cnt++) { 518112748Sorion data = pci_read_config(dev, VIA_AC97STATUS, 1); 519112748Sorion if (data & VIA_AC97STATUS_RDY) 520112748Sorion break; 521112748Sorion DELAY(5000); 522111898Sorion } 523111898Sorion 524119690Sjhb via->regid = PCIR_BAR(0); 525127135Snjl via->reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 526127135Snjl &via->regid, RF_ACTIVE); 52770134Scg if (!via->reg) { 52870345Scg device_printf(dev, "cannot allocate bus resource."); 52970134Scg goto bad; 53070134Scg } 53170134Scg via->st = rman_get_bustag(via->reg); 53270134Scg via->sh = rman_get_bushandle(via->reg); 53370134Scg 53484658Scg via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 53584658Scg 53670134Scg via->irqid = 0; 537127135Snjl via->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &via->irqid, 538127135Snjl RF_ACTIVE | RF_SHAREABLE); 539148589Snetchild if (!via->irq || snd_setup_intr(dev, via->irq, INTR_MPSAFE, via_intr, via, &via->ih)) { 54070134Scg device_printf(dev, "unable to map interrupt\n"); 54170134Scg goto bad; 54270134Scg } 54370134Scg 544102010Sorion via_wr(via, VIA_PLAY_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 545102010Sorion via_wr(via, VIA_RECORD_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 54670134Scg 54774763Scg via->codec = AC97_CREATE(dev, via, via_ac97); 54874763Scg if (!via->codec) 54974763Scg goto bad; 55070134Scg 551111898Sorion if (mixer_init(dev, ac97_getmixerclass(), via->codec)) 552111898Sorion goto bad; 55370134Scg 55474763Scg via->codec_caps = ac97_getextcaps(via->codec); 55586706Sorion ac97_setextmode(via->codec, 55686706Sorion via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 55770134Scg 55870134Scg /* DMA tag for buffers */ 559166904Snetchild if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, 560166904Snetchild /*boundary*/0, 56170134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 56270134Scg /*highaddr*/BUS_SPACE_MAXADDR, 56370134Scg /*filter*/NULL, /*filterarg*/NULL, 56484658Scg /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 565148589Snetchild /*flags*/0, /*lockfunc*/NULL, 566148589Snetchild /*lockarg*/NULL, &via->parent_dmat) != 0) { 56770134Scg device_printf(dev, "unable to create dma tag\n"); 56870134Scg goto bad; 56970134Scg } 57070134Scg 57170134Scg /* 57270134Scg * DMA tag for SGD table. The 686 uses scatter/gather DMA and 57370134Scg * requires a list in memory of work to do. We need only 16 bytes 57470134Scg * for this list, and it is wasteful to allocate 16K. 57570134Scg */ 576166904Snetchild if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev), /*alignment*/2, 577166904Snetchild /*boundary*/0, 57870134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 57970134Scg /*highaddr*/BUS_SPACE_MAXADDR, 58070134Scg /*filter*/NULL, /*filterarg*/NULL, 58170134Scg /*maxsize*/NSEGS * sizeof(struct via_dma_op), 58270134Scg /*nsegments*/1, /*maxsegz*/0x3ffff, 583148589Snetchild /*flags*/0, /*lockfunc*/NULL, 584148589Snetchild /*lockarg*/NULL, &via->sgd_dmat) != 0) { 58570134Scg device_printf(dev, "unable to create dma tag\n"); 58670134Scg goto bad; 58770134Scg } 58870134Scg 589131587Sbms if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, 590131587Sbms BUS_DMA_NOWAIT, &via->sgd_dmamap) != 0) 59174763Scg goto bad; 592131587Sbms if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, 593131587Sbms NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0) != 0) 59474763Scg goto bad; 59570134Scg 596126695Smatk snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld %s", 597126695Smatk rman_get_start(via->reg), rman_get_start(via->irq), 598126695Smatk PCM_KLDSTRING(snd_via82c686)); 59970134Scg 60070134Scg /* Register */ 60170134Scg if (pcm_register(dev, via, 1, 1)) goto bad; 602102010Sorion pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); 603102010Sorion pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); 60470134Scg pcm_setstatus(dev, status); 60570134Scg return 0; 60670134Scgbad: 60774763Scg if (via->codec) ac97_destroy(via->codec); 60870134Scg if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 60970134Scg if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 61070134Scg if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 61170134Scg if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 61274763Scg if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 61370134Scg if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 614148589Snetchild if (via->lock) snd_mtxfree(via->lock); 61570134Scg if (via) free(via, M_DEVBUF); 61670134Scg return ENXIO; 61770134Scg} 61870134Scg 61970134Scgstatic int 62070134Scgvia_detach(device_t dev) 62170134Scg{ 62270134Scg int r; 62370134Scg struct via_info *via = 0; 62470134Scg 62570134Scg r = pcm_unregister(dev); 62670134Scg if (r) 62770134Scg return r; 62870134Scg 62970134Scg via = pcm_getdevinfo(dev); 63070134Scg bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 63170134Scg bus_teardown_intr(dev, via->irq, via->ih); 63270134Scg bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 63370134Scg bus_dma_tag_destroy(via->parent_dmat); 63474763Scg bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 63570134Scg bus_dma_tag_destroy(via->sgd_dmat); 636148589Snetchild snd_mtxfree(via->lock); 63770134Scg free(via, M_DEVBUF); 63870134Scg return 0; 63970134Scg} 64070134Scg 64170134Scg 64270134Scgstatic device_method_t via_methods[] = { 64370134Scg DEVMETHOD(device_probe, via_probe), 64470134Scg DEVMETHOD(device_attach, via_attach), 64570134Scg DEVMETHOD(device_detach, via_detach), 64670134Scg { 0, 0} 64770134Scg}; 64870134Scg 64970134Scgstatic driver_t via_driver = { 65070134Scg "pcm", 65170134Scg via_methods, 65282180Scg PCM_SOFTC_SIZE, 65370134Scg}; 65470134Scg 65585441SjhbDRIVER_MODULE(snd_via82c686, pci, via_driver, pcm_devclass, 0, 0); 656132236StanimuraMODULE_DEPEND(snd_via82c686, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER); 65785441SjhbMODULE_VERSION(snd_via82c686, 1); 658