diff options
Diffstat (limited to 'sys/dev/sound/pci/via82c686.c')
-rw-r--r-- | sys/dev/sound/pci/via82c686.c | 689 |
1 files changed, 0 insertions, 689 deletions
diff --git a/sys/dev/sound/pci/via82c686.c b/sys/dev/sound/pci/via82c686.c deleted file mode 100644 index df721366c3cfa..0000000000000 --- a/sys/dev/sound/pci/via82c686.c +++ /dev/null @@ -1,689 +0,0 @@ -/* - * Copyright (c) 2000 David Jones <dej@ox.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include <dev/sound/pcm/sound.h> -#include <dev/sound/pcm/ac97.h> - -#include <pci/pcireg.h> -#include <pci/pcivar.h> -#include <sys/sysctl.h> - -#include <dev/sound/pci/via82c686.h> - -#define VIA_PCI_ID 0x30581106 -#define NSEGS 16 /* Number of segments in SGD table */ - -#define SEGS_PER_CHAN (NSEGS/2) - -#undef DEB -#define DEB(x) - -struct via_info; - -struct via_chinfo { - struct via_info *parent; - pcm_channel *channel; - snd_dbuf *buffer; - int dir; -}; - -struct via_info { - bus_space_tag_t st; - bus_space_handle_t sh; - bus_dma_tag_t parent_dmat; - bus_dma_tag_t sgd_dmat; - - struct resource *reg, *irq; - int regid, irqid; - void *ih; - - struct via_chinfo pch, rch; - struct via_dma_op *sgd_table; - u_int16_t codec_caps; -}; - -static u_int32_t via_rd(struct via_info *via, int regno, int size); -static void via_wr(struct via_info *, int regno, u_int32_t data, int size); - -int via_waitready_codec(struct via_info *via); -int via_waitvalid_codec(struct via_info *via); -u_int32_t via_read_codec(void *addr, int reg); -void via_write_codec(void *addr, int reg, u_int32_t val); - -static void via_intr(void *); -bus_dmamap_callback_t dma_cb; - - -/* channel interface */ -static void *viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir); -static int viachan_setdir(void *data, int dir); -static int viachan_setformat(void *data, u_int32_t format); -static int viachan_setspeed(void *data, u_int32_t speed); -static int viachan_setblocksize(void *data, u_int32_t blocksize); -static int viachan_trigger(void *data, int go); -static int viachan_getptr(void *data); -static pcmchan_caps *viachan_getcaps(void *data); - -static u_int32_t via_playfmt[] = { - AFMT_U8, - AFMT_STEREO | AFMT_U8, - AFMT_S16_LE, - AFMT_STEREO | AFMT_S16_LE, - 0 -}; -static pcmchan_caps via_playcaps = {4000, 48000, via_playfmt, 0}; - -static u_int32_t via_recfmt[] = { - AFMT_U8, - AFMT_STEREO | AFMT_U8, - AFMT_S16_LE, - AFMT_STEREO | AFMT_S16_LE, - 0 -}; -static pcmchan_caps via_reccaps = {4000, 48000, via_recfmt, 0}; - -static pcm_channel via_chantemplate = { - viachan_init, - viachan_setdir, - viachan_setformat, - viachan_setspeed, - viachan_setblocksize, - viachan_trigger, - viachan_getptr, - viachan_getcaps, - NULL, /* free */ - NULL, /* nop1 */ - NULL, /* nop2 */ - NULL, /* nop3 */ - NULL, /* nop4 */ - NULL, /* nop5 */ - NULL, /* nop6 */ - NULL, /* nop7 */ -}; - - -/* - * Probe and attach the card - */ -static int -via_probe(device_t dev) -{ - if (pci_get_devid(dev) == VIA_PCI_ID) { - device_set_desc(dev, "VIA VT82C686A AC'97 Audio"); - return 0; - } - return ENXIO; -} - - -void dma_cb(void *p, bus_dma_segment_t *bds, int a, int b) -{ -} - - -static int -via_attach(device_t dev) -{ - struct via_info *via = 0; - struct ac97_info *codec = 0; - char status[SND_STATUSLEN]; - - u_int32_t data; - - u_int16_t v; - bus_dmamap_t sgd_dma_map; - - if ((via = malloc(sizeof *via, M_DEVBUF, M_NOWAIT)) == NULL) { - device_printf(dev, "cannot allocate softc\n"); - return ENXIO; - } - bzero(via, sizeof *via); - - /* Get resources */ - data = pci_read_config(dev, PCIR_COMMAND, 2); - data |= (PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN); - pci_write_config(dev, PCIR_COMMAND, data, 2); - data = pci_read_config(dev, PCIR_COMMAND, 2); - - pci_write_config(dev, VIA_PCICONF_MISC, - VIA_PCICONF_ACLINKENAB | VIA_PCICONF_ACSGD | - VIA_PCICONF_ACNOTRST | VIA_PCICONF_ACVSR, 1); - - via->regid = PCIR_MAPS; - via->reg = bus_alloc_resource(dev, SYS_RES_IOPORT, &via->regid, - 0, ~0, 1, RF_ACTIVE); - if (!via->reg) { - device_printf(dev, "via: Cannot allocate bus resource."); - goto bad; - } - via->st = rman_get_bustag(via->reg); - via->sh = rman_get_bushandle(via->reg); - - via->irqid = 0; - via->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &via->irqid, - 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); - if (!via->irq - || bus_setup_intr(dev, via->irq, INTR_TYPE_TTY, via_intr, via, &via->ih)){ - device_printf(dev, "unable to map interrupt\n"); - goto bad; - } - - via_wr(via, VIA_PLAY_MODE, - VIA_RPMODE_AUTOSTART | - VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); - via_wr(via, VIA_RECORD_MODE, - VIA_RPMODE_AUTOSTART | - VIA_RPMODE_INTR_FLAG | VIA_RPMODE_INTR_EOL, 1); - - codec = ac97_create(dev, via, NULL, - via_read_codec, via_write_codec); - if (!codec) goto bad; - - mixer_init(dev, &ac97_mixer, codec); - - /* - * The mixer init resets the codec. So enabling VRA must be done - * afterwards. - */ - v = via_read_codec(via, AC97_REG_EXT_AUDIO_ID); - v &= (AC97_ENAB_VRA | AC97_ENAB_MICVRA); - via_write_codec(via, AC97_REG_EXT_AUDIO_STAT, v); - via->codec_caps = v; - { - v = via_read_codec(via, AC97_REG_EXT_AUDIO_STAT); - DEB(printf("init: codec stat: %d\n", v)); - } - - if (!(v & AC97_CODEC_DOES_VRA)) { - /* no VRA => can do only 48 kbps */ - via_playcaps.minspeed = 48000; - via_reccaps.minspeed = 48000; - } - - /* DMA tag for buffers */ - if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, - /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, - /*highaddr*/BUS_SPACE_MAXADDR, - /*filter*/NULL, /*filterarg*/NULL, - /*maxsize*/VIA_BUFFSIZE, /*nsegments*/1, /*maxsegz*/0x3ffff, - /*flags*/0, &via->parent_dmat) != 0) { - device_printf(dev, "unable to create dma tag\n"); - goto bad; - } - - /* - * DMA tag for SGD table. The 686 uses scatter/gather DMA and - * requires a list in memory of work to do. We need only 16 bytes - * for this list, and it is wasteful to allocate 16K. - */ - if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0, - /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, - /*highaddr*/BUS_SPACE_MAXADDR, - /*filter*/NULL, /*filterarg*/NULL, - /*maxsize*/NSEGS * sizeof(struct via_dma_op), - /*nsegments*/1, /*maxsegz*/0x3ffff, - /*flags*/0, &via->sgd_dmat) != 0) { - device_printf(dev, "unable to create dma tag\n"); - goto bad; - } - - if (bus_dmamem_alloc(via->sgd_dmat, (void **)&via->sgd_table, - BUS_DMA_NOWAIT, &sgd_dma_map) == -1) goto bad; - if (bus_dmamap_load(via->sgd_dmat, sgd_dma_map, via->sgd_table, - NSEGS * sizeof(struct via_dma_op), dma_cb, 0, 0)) goto bad; - - snprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld", - rman_get_start(via->reg), rman_get_start(via->irq)); - - /* Register */ - if (pcm_register(dev, via, 1, 1)) goto bad; - pcm_addchan(dev, PCMDIR_PLAY, &via_chantemplate, via); - pcm_addchan(dev, PCMDIR_REC, &via_chantemplate, via); - pcm_setstatus(dev, status); - return 0; -bad: - if (codec) ac97_destroy(codec); - if (via->reg) bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); - if (via->ih) bus_teardown_intr(dev, via->irq, via->ih); - if (via->irq) bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); - if (via->parent_dmat) bus_dma_tag_destroy(via->parent_dmat); - if (via->sgd_dmat) bus_dma_tag_destroy(via->sgd_dmat); - if (via) free(via, M_DEVBUF); - return ENXIO; -} - -static int -via_detach(device_t dev) -{ - int r; - struct via_info *via = 0; - - r = pcm_unregister(dev); - if (r) - return r; - - via = pcm_getdevinfo(dev); - bus_release_resource(dev, SYS_RES_IOPORT, via->regid, via->reg); - bus_teardown_intr(dev, via->irq, via->ih); - bus_release_resource(dev, SYS_RES_IRQ, via->irqid, via->irq); - bus_dma_tag_destroy(via->parent_dmat); - bus_dma_tag_destroy(via->sgd_dmat); - free(via, M_DEVBUF); - return 0; -} - - -static device_method_t via_methods[] = { - DEVMETHOD(device_probe, via_probe), - DEVMETHOD(device_attach, via_attach), - DEVMETHOD(device_detach, via_detach), - { 0, 0} -}; - -static driver_t via_driver = { - "pcm", - via_methods, - sizeof(snddev_info), -}; - -static devclass_t pcm_devclass; - -DRIVER_MODULE(via, pci, via_driver, pcm_devclass, 0, 0); -MODULE_DEPEND(via, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER); -MODULE_VERSION(via, 1); - - -static u_int32_t -via_rd(struct via_info *via, int regno, int size) -{ - - switch (size) { - case 1: - return bus_space_read_1(via->st, via->sh, regno); - case 2: - return bus_space_read_2(via->st, via->sh, regno); - case 4: - return bus_space_read_4(via->st, via->sh, regno); - default: - return 0xFFFFFFFF; - } -} - - -static void -via_wr(struct via_info *via, int regno, u_int32_t data, int size) -{ - - switch (size) { - case 1: - bus_space_write_1(via->st, via->sh, regno, data); - break; - case 2: - bus_space_write_2(via->st, via->sh, regno, data); - break; - case 4: - bus_space_write_4(via->st, via->sh, regno, data); - break; - } -} - - -/* Codec interface */ -int -via_waitready_codec(struct via_info *via) -{ - int i; - - /* poll until codec not busy */ - for (i = 0; (i < TIMEOUT) && - (via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_BUSY); i++) - DELAY(1); - if (i >= TIMEOUT) { - printf("via: codec busy\n"); - return 1; - } - - return 0; -} - - -int -via_waitvalid_codec(struct via_info *via) -{ - int i; - - /* poll until codec valid */ - for (i = 0; (i < TIMEOUT) && - !(via_rd(via, VIA_CODEC_CTL, 4) & VIA_CODEC_PRIVALID); i++) - DELAY(1); - if (i >= TIMEOUT) { - printf("via: codec invalid\n"); - return 1; - } - - return 0; -} - - -void -via_write_codec(void *addr, int reg, u_int32_t val) -{ - struct via_info *via = addr; - - if (via_waitready_codec(via)) return; - - via_wr(via, VIA_CODEC_CTL, - VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); -} - - -u_int32_t -via_read_codec(void *addr, int reg) -{ - struct via_info *via = addr; - - if (via_waitready_codec(via)) - return 1; - - via_wr(via, VIA_CODEC_CTL, - VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); - - if (via_waitready_codec(via)) - return 1; - - if (via_waitvalid_codec(via)) - return 1; - - return via_rd(via, VIA_CODEC_CTL, 2); -} - - -/* channel interface */ -static void * -viachan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir) -{ - struct via_info *via = devinfo; - struct via_chinfo *ch = (dir == PCMDIR_PLAY) ? &via->pch : &via->rch; - - ch->parent = via; - ch->channel = c; - ch->buffer = b; - b->bufsize = VIA_BUFFSIZE; - - if (chn_allocbuf(ch->buffer, via->parent_dmat) == -1) return NULL; - return ch; -} - -static int -viachan_setdir(void *data, int dir) -{ - struct via_chinfo *ch = data; - struct via_info *via = ch->parent; - struct via_dma_op *ado; - int i, chunk_size; - int phys_addr, flag; - - ch->dir = dir; - /* - * Build the scatter/gather DMA (SGD) table. - * There are four slots in the table: two for play, two for record. - * This creates two half-buffers, one of which is playing; the other - * is feeding. - */ - ado = via->sgd_table; - chunk_size = ch->buffer->bufsize / SEGS_PER_CHAN; - - if (dir == PCMDIR_REC) { - ado += SEGS_PER_CHAN; - } - -DEB(printf("SGD table located at va %p\n", ado)); - phys_addr = vtophys(ch->buffer->buf); - for (i = 0; i < SEGS_PER_CHAN; i++) { - ado->ptr = phys_addr; - flag = (i == SEGS_PER_CHAN-1) ? - VIA_DMAOP_EOL : VIA_DMAOP_FLAG; - ado->flags = flag | chunk_size; -DEB(printf("ado->ptr/flags = %x/%x\n", phys_addr, flag)); - phys_addr += chunk_size; - ado++; - } - return 0; -} - -static int -viachan_setformat(void *data, u_int32_t format) -{ - struct via_chinfo *ch = data; - struct via_info *via = ch->parent; - int mode, mode_set; - - mode_set = 0; - if (format & AFMT_STEREO) - mode_set |= VIA_RPMODE_STEREO; - if (format & AFMT_S16_LE) - mode_set |= VIA_RPMODE_16BIT; - - /* Set up for output format */ - if (ch->dir == PCMDIR_PLAY) { -DEB(printf("set play format: %x\n", format)); - mode = via_rd(via, VIA_PLAY_MODE, 1); - mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); - mode |= mode_set; - via_wr(via, VIA_PLAY_MODE, mode, 1); - } - else { -DEB(printf("set record format: %x\n", format)); - mode = via_rd(via, VIA_RECORD_MODE, 1); - mode &= ~(VIA_RPMODE_16BIT | VIA_RPMODE_STEREO); - mode |= mode_set; - via_wr(via, VIA_RECORD_MODE, mode, 1); - } - - return 0; -} - -static int -viachan_setspeed(void *data, u_int32_t speed) -{ - struct via_chinfo *ch = data; - struct via_info *via = ch->parent; - - /* - * Basic AC'97 defines a 48 kHz sample rate only. For other rates, - * upsampling is required. - * - * The VT82C686A does not perform upsampling, and neither do we. - * If the codec supports variable-rate audio (i.e. does the upsampling - * itself), then negotiate the rate with the codec. Otherwise, - * return 48 kHz cuz that's all you got. - */ - if (ch->dir == PCMDIR_PLAY) { -DEB(printf("requested play speed: %d\n", speed)); - if (via->codec_caps & AC97_CODEC_DOES_VRA) { - via_write_codec(via, AC97_REG_EXT_DAC_RATE, speed); - speed = via_read_codec(via, AC97_REG_EXT_DAC_RATE); - } - else { -DEB(printf("VRA not supported!\n")); - speed = 48000; - } -DEB(printf("obtained play speed: %d\n", speed)); - } - else { -DEB(printf("requested record speed: %d\n", speed)); - if (via->codec_caps & AC97_CODEC_DOES_VRA) { - via_write_codec(via, AC97_REG_EXT_ADC_RATE, speed); - speed = via_read_codec(via, AC97_REG_EXT_ADC_RATE); - } - else { -DEB(printf("VRA not supported!\n")); - speed = 48000; - } -DEB(printf("obtained record speed: %d\n", speed)); - } - return speed; -} - -static int -viachan_setblocksize(void *data, u_int32_t blocksize) -{ - struct via_chinfo *ch = data; - - return ch->buffer->bufsize / 2; -} - -static int -viachan_trigger(void *data, int go) -{ - struct via_chinfo *ch = data; - struct via_info *via = ch->parent; - struct via_dma_op *ado; - - if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD) return 0; - if (ch->dir == PCMDIR_PLAY) { - if (go == PCMTRIG_START) { - ado = &via->sgd_table[0]; -DEB(printf("ado located at va=%p pa=%x\n", ado, vtophys(ado))); - via_wr(via, VIA_PLAY_DMAOPS_BASE, vtophys(ado),4); - via_wr(via, VIA_PLAY_CONTROL, - VIA_RPCTRL_START, 1); - } - else { - /* Stop DMA */ - via_wr(via, VIA_PLAY_CONTROL, - VIA_RPCTRL_TERMINATE, 1); - } - } else { - if (go == PCMTRIG_START) { - ado = &via->sgd_table[SEGS_PER_CHAN]; -DEB(printf("ado located at va=%p pa=%x\n", ado, vtophys(ado))); - via_wr(via, VIA_RECORD_DMAOPS_BASE, - vtophys(ado),4); - via_wr(via, VIA_RECORD_CONTROL, - VIA_RPCTRL_START, 1); - } - else { - /* Stop DMA */ - via_wr(via, VIA_RECORD_CONTROL, - VIA_RPCTRL_TERMINATE, 1); - } - } - -DEB(printf("viachan_trigger: go=%d\n", go)); - return 0; -} - -static int -viachan_getptr(void *data) -{ - struct via_chinfo *ch = data; - struct via_info *via = ch->parent; - struct via_dma_op *ado; - int ptr, base, len, seg; - int base1; - - if (ch->dir == PCMDIR_PLAY) { - ado = &via->sgd_table[0]; - base1 = via_rd(via, VIA_PLAY_DMAOPS_BASE, 4); - len = via_rd(via, VIA_PLAY_DMAOPS_COUNT, 4); - base = via_rd(via, VIA_PLAY_DMAOPS_BASE, 4); - if (base != base1) { /* Avoid race hazzard */ - len = via_rd(via, VIA_PLAY_DMAOPS_COUNT, 4); - } -DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); - - /* Base points to SGD segment to do, one past current */ - - /* Determine how many segments have been done */ - seg = (base - vtophys(ado)) / sizeof(struct via_dma_op); - if (seg == 0) seg = SEGS_PER_CHAN; - - /* Now work out offset: seg less count */ - ptr = seg * ch->buffer->bufsize / SEGS_PER_CHAN - len; -DEB(printf("return ptr=%d\n", ptr)); - return ptr; - } - else { - base1 = via_rd(via, VIA_RECORD_DMAOPS_BASE, 4); - ado = &via->sgd_table[SEGS_PER_CHAN]; - len = via_rd(via, VIA_RECORD_DMAOPS_COUNT, 4); - base = via_rd(via, VIA_RECORD_DMAOPS_BASE, 4); - if (base != base1) { /* Avoid race hazzard */ - len = via_rd(via, VIA_RECORD_DMAOPS_COUNT, 4); - } -DEB(printf("viachan_getptr: len / base = %x / %x\n", len, base)); - - /* Base points to next block to do, one past current */ - - /* Determine how many segments have been done */ - seg = (base - vtophys(ado)) / sizeof(struct via_dma_op); - if (seg == 0) seg = SEGS_PER_CHAN; - - /* Now work out offset: seg less count */ - ptr = seg * ch->buffer->bufsize / SEGS_PER_CHAN - len; - - /* DMA appears to operate on memory 'lines' of 32 bytes */ - /* so don't return any part line - it isn't in RAM yet */ - ptr = ptr & ~0x1f; -DEB(printf("return ptr=%d\n", ptr)); - return ptr; - } - return 0; -} - -static pcmchan_caps * -viachan_getcaps(void *data) -{ - struct via_chinfo *ch = data; - return (ch->dir == PCMDIR_PLAY) ? &via_playcaps : &via_reccaps; -} - -static void -via_intr(void *p) -{ - struct via_info *via = p; - int st; - -DEB(printf("viachan_intr\n")); - /* Read channel */ - st = via_rd(via, VIA_PLAY_STAT, 1); - if (st & VIA_RPSTAT_INTR) { - via_wr(via, VIA_PLAY_STAT, VIA_RPSTAT_INTR, 1); - chn_intr(via->pch.channel); - } - - /* Write channel */ - st = via_rd(via, VIA_RECORD_STAT, 1); - if (st & VIA_RPSTAT_INTR) { - via_wr(via, VIA_RECORD_STAT, VIA_RPSTAT_INTR, 1); - chn_intr(via->rch.channel); - } -} - - |