via82c686.c revision 111183
164439Scg/* 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 3064439Scg#include <pci/pcireg.h> 3164439Scg#include <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 111183 2003-02-20 17:31:12Z cognet $"); 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; 8964439Scg}; 9064439Scg 9174763Scgstatic u_int32_t via_fmt[] = { 9264881Scg AFMT_U8, 9364881Scg AFMT_STEREO | AFMT_U8, 9464881Scg AFMT_S16_LE, 9564881Scg AFMT_STEREO | AFMT_S16_LE, 9664881Scg 0 9764439Scg}; 9874763Scgstatic struct pcmchan_caps via_vracaps = {4000, 48000, via_fmt, 0}; 9974763Scgstatic struct pcmchan_caps via_caps = {48000, 48000, via_fmt, 0}; 10064439Scg 10164439Scgstatic u_int32_t 10264439Scgvia_rd(struct via_info *via, int regno, int size) 10364439Scg{ 104102010Sorion 10564439Scg switch (size) { 10664439Scg case 1: 10764439Scg return bus_space_read_1(via->st, via->sh, regno); 10864439Scg case 2: 10964439Scg return bus_space_read_2(via->st, via->sh, regno); 11064439Scg case 4: 11164439Scg return bus_space_read_4(via->st, via->sh, regno); 11264439Scg default: 11364439Scg return 0xFFFFFFFF; 11464439Scg } 11564439Scg} 11664439Scg 11764439Scg 11864439Scgstatic void 11964439Scgvia_wr(struct via_info *via, int regno, u_int32_t data, int size) 12064439Scg{ 12164439Scg 12264439Scg switch (size) { 12364439Scg case 1: 12464439Scg bus_space_write_1(via->st, via->sh, regno, data); 12564439Scg break; 12664439Scg case 2: 12764439Scg bus_space_write_2(via->st, via->sh, regno, data); 12864439Scg break; 12964439Scg case 4: 13064439Scg bus_space_write_4(via->st, via->sh, regno, data); 13164439Scg break; 13264439Scg } 13364439Scg} 13464439Scg 13570134Scg/* -------------------------------------------------------------------- */ 13670134Scg/* Codec interface */ 13764439Scg 13870134Scgstatic int 13964439Scgvia_waitready_codec(struct via_info *via) 14064439Scg{ 14164439Scg int i; 14264439Scg 14364439Scg /* poll until codec not busy */ 14464439Scg for (i = 0; (i < TIMEOUT) && 14564439Scg (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) 14664439Scg DELAY(1); 14764439Scg if (i >= TIMEOUT) { 14864439Scg printf("via: codec busy\n"); 14964439Scg return 1; 15064439Scg } 15164439Scg 15264439Scg return 0; 15364439Scg} 15464439Scg 15564439Scg 15670134Scgstatic int 15764439Scgvia_waitvalid_codec(struct via_info *via) 15864439Scg{ 15964439Scg int i; 16064439Scg 16164439Scg /* poll until codec valid */ 16264439Scg for (i = 0; (i < TIMEOUT) && 16364439Scg !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) 16464439Scg DELAY(1); 16564439Scg if (i >= TIMEOUT) { 16664439Scg printf("via: codec invalid\n"); 16764439Scg return 1; 16864439Scg } 16964439Scg 17064439Scg return 0; 17164439Scg} 17264439Scg 17364439Scg 17470134Scgstatic int 17570134Scgvia_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) 17664439Scg{ 17764439Scg struct via_info *via = addr; 17864439Scg 17970134Scg if (via_waitready_codec(via)) return -1; 18064439Scg 181102010Sorion via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); 18270134Scg 18370134Scg return 0; 18464439Scg} 18564439Scg 18664439Scg 18770134Scgstatic int 18870134Scgvia_read_codec(kobj_t obj, void *addr, int reg) 18964439Scg{ 19064439Scg struct via_info *via = addr; 19164439Scg 19264439Scg if (via_waitready_codec(via)) 19374763Scg return -1; 19464439Scg 19574763Scg via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); 19664439Scg 19764439Scg if (via_waitready_codec(via)) 19874763Scg return -1; 19964439Scg 20064439Scg if (via_waitvalid_codec(via)) 20174763Scg return -1; 20264439Scg 20364439Scg return via_rd(via, VIA_CODEC_CTL, 2); 20464439Scg} 20564439Scg 20670134Scgstatic kobj_method_t via_ac97_methods[] = { 20770134Scg KOBJMETHOD(ac97_read, via_read_codec), 20870134Scg KOBJMETHOD(ac97_write, via_write_codec), 20970134Scg { 0, 0 } 21070134Scg}; 21170134ScgAC97_DECLARE(via_ac97); 21264439Scg 21370134Scg/* -------------------------------------------------------------------- */ 21470134Scg 21564439Scgstatic int 21674763Scgvia_buildsgdt(struct via_chinfo *ch) 21764439Scg{ 21874763Scg u_int32_t phys_addr, flag; 21974763Scg int i, segs, seg_size; 22064439Scg 22164439Scg /* 22264439Scg * Build the scatter/gather DMA (SGD) table. 22364439Scg * There are four slots in the table: two for play, two for record. 22464439Scg * This creates two half-buffers, one of which is playing; the other 22564439Scg * is feeding. 22664439Scg */ 22774763Scg seg_size = ch->blksz; 22874763Scg segs = sndbuf_getsize(ch->buffer) / seg_size; 229111183Scognet phys_addr = sndbuf_getbufaddr(ch->buffer); 23064439Scg 23174763Scg for (i = 0; i < segs; i++) { 23274763Scg flag = (i == segs - 1)? VIA_DMAOP_EOL : VIA_DMAOP_FLAG; 23374763Scg ch->sgd_table[i].ptr = phys_addr + (i * seg_size); 23474763Scg ch->sgd_table[i].flags = flag | seg_size; 23564439Scg } 23664439Scg 23764439Scg return 0; 23864439Scg} 23964439Scg 24074763Scg/* channel interface */ 24174763Scgstatic void * 242102010Sorionviachan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir) 24374763Scg{ 24474763Scg struct via_info *via = devinfo; 24574763Scg struct via_chinfo *ch = (dir == PCMDIR_PLAY)? &via->pch : &via->rch; 24674763Scg 24774763Scg ch->parent = via; 24874763Scg ch->channel = c; 24974763Scg ch->buffer = b; 25074763Scg ch->dir = dir; 25174763Scg ch->sgd_table = &via->sgd_table[(dir == PCMDIR_PLAY)? 0 : SEGS_PER_CHAN]; 252111183Scognet ch->sgd_addr = dir == PCMDIR_PLAY ? via->sgd_addr : via->sgd_addr + 253111183Scognet sizeof(struct via_dma_op) * SEGS_PER_CHAN; 25474763Scg if (ch->dir == PCMDIR_PLAY) { 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; 25974763Scg } else { 260102010Sorion ch->base = VIA_RECORD_DMAOPS_BASE; 261102010Sorion ch->count = VIA_RECORD_DMAOPS_COUNT; 262102010Sorion ch->ctrl = VIA_RECORD_CONTROL; 263102010Sorion ch->mode = VIA_RECORD_MODE; 26474763Scg } 26574763Scg 26684658Scg if (sndbuf_alloc(ch->buffer, via->parent_dmat, via->bufsz) == -1) 26774763Scg return NULL; 26874763Scg return ch; 26974763Scg} 27074763Scg 27164439Scgstatic int 27270134Scgviachan_setformat(kobj_t obj, void *data, u_int32_t format) 27364439Scg{ 27464439Scg struct via_chinfo *ch = data; 27564439Scg struct via_info *via = ch->parent; 276102010Sorion int mode, mode_set; 27764439Scg 278102010Sorion mode_set = 0; 27964439Scg if (format & AFMT_STEREO) 280102010Sorion mode_set |= VIA_RPMODE_STEREO; 28164439Scg if (format & AFMT_S16_LE) 282102010Sorion mode_set |= VIA_RPMODE_16BIT; 28364439Scg 284102010Sorion DEB(printf("set format: dir = %d, format=%x\n", ch->dir, format)); 285102010Sorion mode = via_rd(via, ch->mode, 1); 286102010Sorion mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); 287102010Sorion mode |= mode_set; 288102010Sorion via_wr(via, ch->mode, mode, 1); 289102010Sorion 29064439Scg return 0; 29164439Scg} 29264439Scg 29364439Scgstatic int 29470134Scgviachan_setspeed(kobj_t obj, void *data, u_int32_t speed) 29564439Scg{ 29664439Scg struct via_chinfo *ch = data; 29764439Scg struct via_info *via = ch->parent; 29874763Scg int reg; 29964439Scg 30064439Scg /* 30164439Scg * Basic AC'97 defines a 48 kHz sample rate only. For other rates, 30264439Scg * upsampling is required. 30364439Scg * 30464439Scg * The VT82C686A does not perform upsampling, and neither do we. 30564439Scg * If the codec supports variable-rate audio (i.e. does the upsampling 30664439Scg * itself), then negotiate the rate with the codec. Otherwise, 30764439Scg * return 48 kHz cuz that's all you got. 30864439Scg */ 30974763Scg if (via->codec_caps & AC97_EXTCAP_VRA) { 31074763Scg reg = (ch->dir == PCMDIR_PLAY)? AC97_REGEXT_FDACRATE : AC97_REGEXT_LADCRATE; 31174763Scg return ac97_setrate(via->codec, reg, speed); 31274763Scg } else 31374763Scg return 48000; 31464439Scg} 31564439Scg 31664439Scgstatic int 31770134Scgviachan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize) 31864439Scg{ 31964439Scg struct via_chinfo *ch = data; 32064439Scg 32174763Scg ch->blksz = blocksize; 32274763Scg sndbuf_resize(ch->buffer, SEGS_PER_CHAN, ch->blksz); 32374763Scg 32474763Scg return ch->blksz; 32564439Scg} 32664439Scg 32764439Scgstatic int 32870134Scgviachan_trigger(kobj_t obj, void *data, int go) 32964439Scg{ 33064439Scg struct via_chinfo *ch = data; 33164439Scg struct via_info *via = ch->parent; 332102010Sorion struct via_dma_op *ado; 333111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 33464439Scg 335102010Sorion if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) 336102010Sorion return 0; 337102010Sorion 338102010Sorion ado = ch->sgd_table; 339111183Scognet DEB(printf("ado located at va=%p pa=%x\n", ado, sgd_addr)); 340102010Sorion 341102010Sorion if (go == PCMTRIG_START) { 34274763Scg via_buildsgdt(ch); 343111183Scognet via_wr(via, ch->base, sgd_addr, 4); 344102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_START, 1); 345102010Sorion } else 346102010Sorion via_wr(via, ch->ctrl, VIA_RPCTRL_TERMINATE, 1); 347102010Sorion 348102010Sorion DEB(printf("viachan_trigger: go=%d\n", go)); 34964439Scg return 0; 35064439Scg} 35164439Scg 35264439Scgstatic int 35370134Scgviachan_getptr(kobj_t obj, void *data) 35464439Scg{ 35564439Scg struct via_chinfo *ch = data; 35664439Scg struct via_info *via = ch->parent; 35764439Scg struct via_dma_op *ado; 358111183Scognet bus_addr_t sgd_addr = ch->sgd_addr; 35974763Scg int ptr, base, base1, len, seg; 36064439Scg 36174763Scg ado = ch->sgd_table; 362102010Sorion base1 = via_rd(via, ch->base, 4); 363102010Sorion len = via_rd(via, ch->count, 4); 364102010Sorion base = via_rd(via, ch->base, 4); 36574763Scg if (base != base1) /* Avoid race hazard */ 366102010Sorion len = via_rd(via, ch->count, 4); 36764439Scg 36874797Scg DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); 36964439Scg 37074763Scg /* Base points to SGD segment to do, one past current */ 37164439Scg 37274797Scg /* Determine how many segments have been done */ 373111183Scognet seg = (base - sgd_addr) / sizeof(struct via_dma_op); 37474763Scg if (seg == 0) 37574763Scg seg = SEGS_PER_CHAN; 37664439Scg 37774797Scg /* Now work out offset: seg less count */ 37874763Scg ptr = (seg * sndbuf_getsize(ch->buffer) / SEGS_PER_CHAN) - len; 37974763Scg if (ch->dir == PCMDIR_REC) { 38064439Scg /* DMA appears to operate on memory 'lines' of 32 bytes */ 38164439Scg /* so don't return any part line - it isn't in RAM yet */ 38264439Scg ptr = ptr & ~0x1f; 38374763Scg } 38474763Scg 38574797Scg DEB(printf("return ptr=%d\n", ptr)); 38674797Scg return ptr; 38764439Scg} 38864439Scg 38974763Scgstatic struct pcmchan_caps * 39070134Scgviachan_getcaps(kobj_t obj, void *data) 39164439Scg{ 39264439Scg struct via_chinfo *ch = data; 39374763Scg struct via_info *via = ch->parent; 39474763Scg 39574763Scg return (via->codec_caps & AC97_EXTCAP_VRA)? &via_vracaps : &via_caps; 39664439Scg} 39764439Scg 39870134Scgstatic kobj_method_t viachan_methods[] = { 39970134Scg KOBJMETHOD(channel_init, viachan_init), 40070134Scg KOBJMETHOD(channel_setformat, viachan_setformat), 40170134Scg KOBJMETHOD(channel_setspeed, viachan_setspeed), 40270134Scg KOBJMETHOD(channel_setblocksize, viachan_setblocksize), 40370134Scg KOBJMETHOD(channel_trigger, viachan_trigger), 40470134Scg KOBJMETHOD(channel_getptr, viachan_getptr), 40570134Scg KOBJMETHOD(channel_getcaps, viachan_getcaps), 40670134Scg { 0, 0 } 40770134Scg}; 40870134ScgCHANNEL_DECLARE(viachan); 40970134Scg 41070134Scg/* -------------------------------------------------------------------- */ 41170134Scg 41264439Scgstatic void 41364439Scgvia_intr(void *p) 41464439Scg{ 41564439Scg struct via_info *via = p; 416102010Sorion int st; 41764439Scg 418102010Sorion /* DEB(printf("viachan_intr\n")); */ 419102010Sorion /* Read channel */ 420102010Sorion st = via_rd(via, VIA_PLAY_STAT, 1); 421102010Sorion if (st & VIA_RPSTAT_INTR) { 422102010Sorion via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1); 42364439Scg chn_intr(via->pch.channel); 42464439Scg } 425102010Sorion 426102010Sorion /* Write channel */ 427102010Sorion st = via_rd(via, VIA_RECORD_STAT, 1); 428102010Sorion if (st & VIA_RPSTAT_INTR) { 429102010Sorion via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1); 43064439Scg chn_intr(via->rch.channel); 43164439Scg } 43264439Scg} 43364439Scg 43470134Scg/* 43570134Scg * Probe and attach the card 43670134Scg */ 43770134Scgstatic int 43870134Scgvia_probe(device_t dev) 43970134Scg{ 440102010Sorion if (pci_get_devid(dev) == VIA_PCI_ID) { 441102010Sorion device_set_desc(dev, "VIA VT82C686A"); 442102010Sorion return 0; 44370134Scg } 44470134Scg return ENXIO; 44570134Scg} 44664439Scg 44770134Scg 44874763Scgstatic void 44974763Scgdma_cb(void *p, bus_dma_segment_t *bds, int a, int b) 45070134Scg{ 451111183Scognet struct via_info *via = (struct via_info *)p; 452111183Scognet via->sgd_addr = bds->ds_addr; 45370134Scg} 45470134Scg 455102010Sorion 45670134Scgstatic int 45770134Scgvia_attach(device_t dev) 45870134Scg{ 45970134Scg struct via_info *via = 0; 46074797Scg char status[SND_STATUSLEN]; 46174797Scg u_int32_t data; 46270134Scg 46378564Sgreid if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) { 46470134Scg device_printf(dev, "cannot allocate softc\n"); 46570134Scg return ENXIO; 46670134Scg } 46770134Scg 46870134Scg /* Get resources */ 46970134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 47070134Scg data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); 47170134Scg pci_write_config(dev, PCIR_COMMAND, data, 2); 47270134Scg data = pci_read_config(dev, PCIR_COMMAND, 2); 47370134Scg 47470134Scg pci_write_config(dev, VIA_PCICONF_MISC, 475102010Sorion VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD | VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1); 47670134Scg 47770134Scg via->regid = PCIR_MAPS; 478102010Sorion via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid, 0, ~0, 1, RF_ACTIVE); 47970134Scg if (!via->reg) { 48070345Scg device_printf(dev, "cannot allocate bus resource."); 48170134Scg goto bad; 48270134Scg } 48370134Scg via->st = rman_get_bustag(via->reg); 48470134Scg via->sh = rman_get_bushandle(via->reg); 48570134Scg 48684658Scg via->bufsz = pcm_getbuffersize(dev, 4096, VIA_DEFAULT_BUFSZ, 65536); 48784658Scg 48870134Scg via->irqid = 0; 489102010Sorion via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); 490102010Sorion if (!via->irq || snd_setup_intr(dev, via->irq, 0, via_intr, via, &via->ih)) { 49170134Scg device_printf(dev, "unable to map interrupt\n"); 49270134Scg goto bad; 49370134Scg } 49470134Scg 495102010Sorion via_wr(via, VIA_PLAY_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 496102010Sorion via_wr(via, VIA_RECORD_MODE, VIA_RPMODE_AUTOSTART | VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); 49770134Scg 49874763Scg via->codec = AC97_CREATE(dev, via, via_ac97); 49974763Scg if (!via->codec) 50074763Scg goto bad; 50170134Scg 50274763Scg mixer_init(dev, ac97_getmixerclass(), via->codec); 50370134Scg 50474763Scg via->codec_caps = ac97_getextcaps(via->codec); 50586706Sorion ac97_setextmode(via->codec, 50686706Sorion via->codec_caps & (AC97_EXTCAP_VRA | AC97_EXTCAP_VRM)); 50770134Scg 50870134Scg /* DMA tag for buffers */ 50970134Scg if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 51070134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 51170134Scg /*highaddr*/BUS_SPACE_MAXADDR, 51270134Scg /*filter*/NULL, /*filterarg*/NULL, 51384658Scg /*maxsize*/via->bufsz, /*nsegments*/1, /*maxsegz*/0x3ffff, 51470134Scg /*flags*/0, &via->parent_dmat) != 0) { 51570134Scg device_printf(dev, "unable to create dma tag\n"); 51670134Scg goto bad; 51770134Scg } 51870134Scg 51970134Scg /* 52070134Scg * DMA tag for SGD table. The 686 uses scatter/gather DMA and 52170134Scg * requires a list in memory of work to do. We need only 16 bytes 52270134Scg * for this list, and it is wasteful to allocate 16K. 52370134Scg */ 52470134Scg if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, 52570134Scg /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, 52670134Scg /*highaddr*/BUS_SPACE_MAXADDR, 52770134Scg /*filter*/NULL, /*filterarg*/NULL, 52870134Scg /*maxsize*/NSEGS * sizeof(struct via_dma_op), 52970134Scg /*nsegments*/1, /*maxsegz*/0x3ffff, 53070134Scg /*flags*/0, &via->sgd_dmat) != 0) { 53170134Scg device_printf(dev, "unable to create dma tag\n"); 53270134Scg goto bad; 53370134Scg } 53470134Scg 53574763Scg if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, BUS_DMA_NOWAIT, &via->sgd_dmamap) == -1) 53674763Scg goto bad; 537111183Scognet if (bus_dmamap_load(via->sgd_dmat, via->sgd_dmamap, via->sgd_table, NSEGS * sizeof(struct via_dma_op), dma_cb, via, 0)) 53874763Scg goto bad; 53970134Scg 54074763Scg snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld", rman_get_start(via->reg), rman_get_start(via->irq)); 54170134Scg 54270134Scg /* Register */ 54370134Scg if (pcm_register(dev, via, 1, 1)) goto bad; 544102010Sorion pcm_addchan(dev, PCMDIR_PLAY, &viachan_class, via); 545102010Sorion pcm_addchan(dev, PCMDIR_REC, &viachan_class, via); 54670134Scg pcm_setstatus(dev, status); 54770134Scg return 0; 54870134Scgbad: 54974763Scg if (via->codec) ac97_destroy(via->codec); 55070134Scg if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 55170134Scg if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); 55270134Scg if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 55370134Scg if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); 55474763Scg if (via->sgd_dmamap) bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 55570134Scg if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); 55670134Scg if (via) free(via, M_DEVBUF); 55770134Scg return ENXIO; 55870134Scg} 55970134Scg 56070134Scgstatic int 56170134Scgvia_detach(device_t dev) 56270134Scg{ 56370134Scg int r; 56470134Scg struct via_info *via = 0; 56570134Scg 56670134Scg r = pcm_unregister(dev); 56770134Scg if (r) 56870134Scg return r; 56970134Scg 57070134Scg via = pcm_getdevinfo(dev); 57170134Scg bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); 57270134Scg bus_teardown_intr(dev, via->irq, via->ih); 57370134Scg bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); 57470134Scg bus_dma_tag_destroy(via->parent_dmat); 57574763Scg bus_dmamap_unload(via->sgd_dmat, via->sgd_dmamap); 57670134Scg bus_dma_tag_destroy(via->sgd_dmat); 57770134Scg free(via, M_DEVBUF); 57870134Scg return 0; 57970134Scg} 58070134Scg 58170134Scg 58270134Scgstatic device_method_t via_methods[] = { 58370134Scg DEVMETHOD(device_probe, via_probe), 58470134Scg DEVMETHOD(device_attach, via_attach), 58570134Scg DEVMETHOD(device_detach, via_detach), 58670134Scg { 0, 0} 58770134Scg}; 58870134Scg 58970134Scgstatic driver_t via_driver = { 59070134Scg "pcm", 59170134Scg via_methods, 59282180Scg PCM_SOFTC_SIZE, 59370134Scg}; 59470134Scg 59585441SjhbDRIVER_MODULE(snd_via82c686, pci, via_driver, pcm_devclass, 0, 0); 59685441SjhbMODULE_DEPEND(snd_via82c686, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); 59785441SjhbMODULE_VERSION(snd_via82c686, 1); 598