/* * ALSA driver for VIA VT82xx (South Bridge) * * VT82C686A/B/C, VT8233A/C, VT8235 * * Copyright (c) 2000 Jaroslav Kysela * Tjeerd.Mulder * 2002 Takashi Iwai * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define SNDRV_GET_ID #include #if 0 #define POINTER_DEBUG #endif MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("VIA VT82xx audio"); MODULE_LICENSE("GPL"); MODULE_CLASSES("{sound}"); MODULE_DEVICES("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/B/C}}"); static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000}; MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge."); MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC); MODULE_PARM(id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge."); MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC); MODULE_PARM(enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); MODULE_PARM_DESC(enable, "Enable audio part of VIA 82xx bridge."); MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC); MODULE_PARM(mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); MODULE_PARM_DESC(mpu_port, "MPU-401 port."); MODULE_PARM_SYNTAX(mpu_port, SNDRV_PORT_DESC); MODULE_PARM(ac97_clock, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); MODULE_PARM_SYNTAX(ac97_clock, SNDRV_ENABLED ",default:48000"); /* pci ids */ #ifndef PCI_DEVICE_ID_VIA_82C686_5 #define PCI_DEVICE_ID_VIA_82C686_5 0x3058 #endif #ifndef PCI_DEVICE_ID_VIA_8233_5 #define PCI_DEVICE_ID_VIA_8233_5 0x3059 #endif /* revision numbers for via8233 */ #define VIA_REV_PRE_8233 0x10 /* not in market */ #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */ #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */ #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */ #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */ /* * Direct registers */ #define VIAREG(via, x) ((via)->port + VIA_REG_##x) /* common offsets */ #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */ #define VIA_REG_STAT_ACTIVE 0x80 /* RO */ #define VIA_REG_STAT_PAUSED 0x40 /* RO */ #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */ #define VIA_REG_STAT_STOPPED 0x04 /* RWC */ #define VIA_REG_STAT_EOL 0x02 /* RWC */ #define VIA_REG_STAT_FLAG 0x01 /* RWC */ #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */ #define VIA_REG_CTRL_START 0x80 /* WO */ #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */ #define VIA_REG_CTRL_AUTOSTART 0x20 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */ #define VIA_REG_CTRL_INT_STOP 0x04 #define VIA_REG_CTRL_INT_EOL 0x02 #define VIA_REG_CTRL_INT_FLAG 0x01 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */ #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART) #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */ #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */ #define VIA_REG_TYPE_16BIT 0x20 /* RW */ #define VIA_REG_TYPE_STEREO 0x10 /* RW */ #define VIA_REG_TYPE_INT_LLINE 0x00 #define VIA_REG_TYPE_INT_LSAMPLE 0x04 #define VIA_REG_TYPE_INT_LESSONE 0x08 #define VIA_REG_TYPE_INT_MASK 0x0c #define VIA_REG_TYPE_INT_EOL 0x02 #define VIA_REG_TYPE_INT_FLAG 0x01 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */ #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */ #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */ #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */ #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */ #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */ #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */ #define DEFINE_VIA_REGSET(name,val) \ enum {\ VIA_REG_##name##_STATUS = (val),\ VIA_REG_##name##_CONTROL = (val) + 0x01,\ VIA_REG_##name##_TYPE = (val) + 0x02,\ VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\ VIA_REG_##name##_CURR_PTR = (val) + 0x04,\ VIA_REG_##name##_STOP_IDX = (val) + 0x08,\ VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\ } /* playback block */ DEFINE_VIA_REGSET(PLAYBACK, 0x00); DEFINE_VIA_REGSET(CAPTURE, 0x10); DEFINE_VIA_REGSET(FM, 0x20); /* AC'97 */ #define VIA_REG_AC97 0x80 /* dword */ #define VIA_REG_AC97_CODEC_ID_MASK (3<<30) #define VIA_REG_AC97_CODEC_ID_SHIFT 30 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01 #define VIA_REG_AC97_SECONDARY_VALID (1<<27) #define VIA_REG_AC97_PRIMARY_VALID (1<<25) #define VIA_REG_AC97_BUSY (1<<24) #define VIA_REG_AC97_READ (1<<23) #define VIA_REG_AC97_CMD_SHIFT 16 #define VIA_REG_AC97_CMD_MASK 0x7e #define VIA_REG_AC97_DATA_SHIFT 0 #define VIA_REG_AC97_DATA_MASK 0xffff #define VIA_REG_SGD_SHADOW 0x84 /* dword */ /* multi-channel and capture registers for via8233 */ DEFINE_VIA_REGSET(MULTPLAY, 0x40); DEFINE_VIA_REGSET(CAPTURE_8233, 0x60); /* via8233-specific registers */ #define VIA_REG_PLAYBACK_VOLUME_L 0x02 /* byte */ #define VIA_REG_PLAYBACK_VOLUME_R 0x03 /* byte */ #define VIA_REG_MULTPLAY_FORMAT 0x42 /* byte - format and channels */ #define VIA_REG_MULTPLAY_FMT_8BIT 0x00 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */ #define VIA_REG_CAPTURE_FIFO 0x62 /* byte - bit 6 = fifo enable */ #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */ #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4 #define VIA_REG_CAPTURE_CHANNEL_LINE 0 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */ #define VIA_TBL_BIT_FLAG 0x40000000 #define VIA_TBL_BIT_EOL 0x80000000 /* * pcm stream */ struct snd_via_sg_table { unsigned int offset; unsigned int size; } ; #define VIA_TABLE_SIZE 255 typedef struct { unsigned long reg_offset; snd_pcm_substream_t *substream; int running; unsigned int tbl_entries; /* # descriptors */ u32 *table; /* physical address + flag */ dma_addr_t table_addr; struct snd_via_sg_table *idx_table; unsigned int lastpos; unsigned int bufsize; unsigned int bufsize2; } viadev_t; /* * allocate and initialize the descriptor buffers * periods = number of periods * fragsize = period size in bytes */ static int build_via_table(viadev_t *dev, snd_pcm_substream_t *substream, struct pci_dev *pci, unsigned int periods, unsigned int fragsize) { unsigned int i, idx, ofs, rest; struct snd_sg_buf *sgbuf = snd_magic_cast(snd_pcm_sgbuf_t, substream->dma_private, return -EINVAL); if (! dev->table) { /* the start of each lists must be aligned to 8 bytes, * but the kernel pages are much bigger, so we don't care */ dev->table = (u32*)snd_malloc_pci_pages(pci, PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), &dev->table_addr); if (! dev->table) return -ENOMEM; } if (! dev->idx_table) { dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL); if (! dev->idx_table) return -ENOMEM; } /* fill the entries */ idx = 0; ofs = 0; for (i = 0; i < periods; i++) { rest = fragsize; /* fill descriptors for a period. * a period can be split to several descriptors if it's * over page boundary. */ do { unsigned int r; unsigned int flag; if (idx >= VIA_TABLE_SIZE) { snd_printk(KERN_ERR "via82xx: too much table size!\n"); return -EINVAL; } dev->table[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs)); r = PAGE_SIZE - (ofs % PAGE_SIZE); if (rest < r) r = rest; rest -= r; if (! rest) { if (i == periods - 1) flag = VIA_TBL_BIT_EOL; /* buffer boundary */ else flag = VIA_TBL_BIT_FLAG; /* period boundary */ } else flag = 0; /* period continues to the next */ // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest); dev->table[(idx<<1) + 1] = cpu_to_le32(r | flag); dev->idx_table[idx].offset = ofs; dev->idx_table[idx].size = r; ofs += r; idx++; } while (rest > 0); } dev->tbl_entries = idx; dev->bufsize = periods * fragsize; dev->bufsize2 = dev->bufsize / 2; return 0; } static void clean_via_table(viadev_t *dev, snd_pcm_substream_t *substream, struct pci_dev *pci) { if (dev->table) { snd_free_pci_pages(pci, PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), dev->table, dev->table_addr); dev->table = NULL; } if (dev->idx_table) { kfree(dev->idx_table); dev->idx_table = NULL; } } /* */ enum { TYPE_VIA686 = 1, TYPE_VIA8233 }; typedef struct _snd_via82xx via82xx_t; #define chip_t via82xx_t struct _snd_via82xx { int irq; unsigned long port; struct resource *res_port; int chip_type; unsigned char revision; unsigned char old_legacy; unsigned char old_legacy_cfg; struct pci_dev *pci; snd_card_t *card; snd_pcm_t *pcm; viadev_t playback; viadev_t capture; snd_rawmidi_t *rmidi; ac97_t *ac97; unsigned int ac97_clock; unsigned int ac97_secondary; /* secondary AC'97 codec is present */ spinlock_t reg_lock; spinlock_t ac97_lock; snd_info_entry_t *proc_entry; }; static struct pci_device_id snd_via82xx_ids[] __devinitdata = { { 0x1106, 0x3058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_VIA686, }, /* 686A */ { 0x1106, 0x3059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_VIA8233, }, /* VT8233 */ { 0, } }; MODULE_DEVICE_TABLE(pci, snd_via82xx_ids); /* * Basic I/O */ static inline unsigned int snd_via82xx_codec_xread(via82xx_t *chip) { return inl(VIAREG(chip, AC97)); } static inline void snd_via82xx_codec_xwrite(via82xx_t *chip, unsigned int val) { outl(val, VIAREG(chip, AC97)); } static int snd_via82xx_codec_ready(via82xx_t *chip, int secondary) { unsigned int timeout = 1000; /* 1ms */ unsigned int val; while (timeout-- > 0) { udelay(1); if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)) return val & 0xffff; } snd_printk("codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via82xx_codec_xread(chip)); return -EIO; } static int snd_via82xx_codec_valid(via82xx_t *chip, int secondary) { unsigned int timeout = 1000; /* 1ms */ unsigned int val; unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : VIA_REG_AC97_SECONDARY_VALID; while (timeout-- > 0) { udelay(1); if ((val = snd_via82xx_codec_xread(chip)) & stat) return val & 0xffff; } snd_printk("codec_valid: codec %i is not valid [0x%x]\n", secondary, snd_via82xx_codec_xread(chip)); return -EIO; } static void snd_via82xx_codec_wait(ac97_t *ac97) { via82xx_t *chip = snd_magic_cast(via82xx_t, ac97->private_data, return); int err; err = snd_via82xx_codec_ready(chip, ac97->num); /* here we need to wait fairly for long time.. */ set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(HZ/2); } static void snd_via82xx_codec_write(ac97_t *ac97, unsigned short reg, unsigned short val) { via82xx_t *chip = snd_magic_cast(via82xx_t, ac97->private_data, return); unsigned int xval; xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; xval |= reg << VIA_REG_AC97_CMD_SHIFT; xval |= val << VIA_REG_AC97_DATA_SHIFT; spin_lock(&chip->ac97_lock); snd_via82xx_codec_xwrite(chip, xval); snd_via82xx_codec_ready(chip, ac97->num); spin_unlock(&chip->ac97_lock); } static unsigned short snd_via82xx_codec_read(ac97_t *ac97, unsigned short reg) { via82xx_t *chip = snd_magic_cast(via82xx_t, ac97->private_data, return ~0); unsigned int xval, val = 0xffff; int again = 0; xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT; xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID; xval |= VIA_REG_AC97_READ; xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT; spin_lock(&chip->ac97_lock); while (1) { if (again++ > 3) { spin_unlock(&chip->ac97_lock); return 0xffff; } snd_via82xx_codec_xwrite(chip, xval); if (snd_via82xx_codec_ready(chip, ac97->num) < 0) continue; if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { udelay(25); val = snd_via82xx_codec_xread(chip); break; } } spin_unlock(&chip->ac97_lock); return val & 0xffff; } static void snd_via82xx_channel_reset(via82xx_t *chip, viadev_t *viadev) { unsigned long port = chip->port + viadev->reg_offset; outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, port + VIA_REG_OFFSET_CONTROL); udelay(50); /* disable interrupts */ outb(0x00, port + VIA_REG_OFFSET_CONTROL); /* clear interrupts */ outb(0x03, port + VIA_REG_OFFSET_STATUS); outb(0x00, port + VIA_REG_OFFSET_TYPE); /* for via686 */ outl(0, port + VIA_REG_OFFSET_CURR_PTR); viadev->lastpos = 0; } static int snd_via82xx_trigger(via82xx_t *chip, viadev_t *viadev, int cmd) { unsigned char val; unsigned long port = chip->port + viadev->reg_offset; if (chip->chip_type == TYPE_VIA8233) val = VIA_REG_CTRL_INT; else val = 0; switch (cmd) { case SNDRV_PCM_TRIGGER_START: val |= VIA_REG_CTRL_START; viadev->running = 1; break; case SNDRV_PCM_TRIGGER_STOP: val = VIA_REG_CTRL_TERMINATE; viadev->running = 0; break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: val |= VIA_REG_CTRL_PAUSE; viadev->running = 0; break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: viadev->running = 1; break; default: return -EINVAL; } outb(val, port + VIA_REG_OFFSET_CONTROL); if (cmd == SNDRV_PCM_TRIGGER_STOP) snd_via82xx_channel_reset(chip, viadev); return 0; } static int snd_via82xx_set_format(via82xx_t *chip, viadev_t *viadev, snd_pcm_substream_t *substream) { snd_pcm_runtime_t *runtime = substream->runtime; unsigned long port = chip->port + viadev->reg_offset; snd_via82xx_channel_reset(chip, viadev); outl((u32)viadev->table_addr, port + VIA_REG_OFFSET_TABLE_PTR); switch (chip->chip_type) { case TYPE_VIA686: outb(VIA_REG_TYPE_AUTOSTART | (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) | (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) | ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) | VIA_REG_TYPE_INT_EOL | VIA_REG_TYPE_INT_FLAG, port + VIA_REG_OFFSET_TYPE); break; case TYPE_VIA8233: if (viadev->reg_offset == VIA_REG_MULTPLAY_STATUS) { unsigned int slots; int fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ? VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT; fmt |= runtime->channels << 4; outb(fmt, port + VIA_REG_OFFSET_TYPE); /* set sample number to slot 3, 4, 7, 8, 6, 9 */ switch (runtime->channels) { case 1: slots = (1<<0) | (1<<4); break; case 2: slots = (1<<0) | (2<<4); break; case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break; case 6: slots = (1<<0) | (2<<4) | (5<<8) | (6<<12) | (3<<16) | (4<<20); break; default: slots = 0; break; } /* STOP index is never reached */ outl(0xff000000 | slots, port + VIA_REG_OFFSET_STOP_IDX); } else { outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | 0xff000000, /* STOP index is never reached */ port + VIA_REG_OFFSET_STOP_IDX); } break; } return 0; } /* * Interrupt handler */ static inline void snd_via82xx_update(via82xx_t *chip, viadev_t *viadev) { outb(VIA_REG_STAT_FLAG | VIA_REG_STAT_EOL, VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset); if (viadev->substream && viadev->running) { spin_unlock(&chip->reg_lock); snd_pcm_period_elapsed(viadev->substream); spin_lock(&chip->reg_lock); } } static void snd_via82xx_interrupt(int irq, void *dev_id, struct pt_regs *regs) { via82xx_t *chip = snd_magic_cast(via82xx_t, dev_id, return); unsigned int status; spin_lock(&chip->reg_lock); if (chip->chip_type == TYPE_VIA686) { /* check mpu401 interrupt */ status = inl(VIAREG(chip, SGD_SHADOW)); if ((status & 0x00000077) == 0) { spin_unlock(&chip->reg_lock); if (chip->rmidi != NULL) snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs); return; } } /* check status for each stream */ if (inb(chip->port + chip->playback.reg_offset) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG)) snd_via82xx_update(chip, &chip->playback); if (inb(chip->port + chip->capture.reg_offset) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG)) snd_via82xx_update(chip, &chip->capture); spin_unlock(&chip->reg_lock); } /* * PCM part */ static int snd_via82xx_playback_trigger(snd_pcm_substream_t * substream, int cmd) { via82xx_t *chip = snd_pcm_substream_chip(substream); return snd_via82xx_trigger(chip, &chip->playback, cmd); } static int snd_via82xx_capture_trigger(snd_pcm_substream_t * substream, int cmd) { via82xx_t *chip = snd_pcm_substream_chip(substream); return snd_via82xx_trigger(chip, &chip->capture, cmd); } static int snd_via82xx_hw_params(snd_pcm_substream_t * substream, snd_pcm_hw_params_t * hw_params) { via82xx_t *chip = snd_pcm_substream_chip(substream); viadev_t *viadev = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? &chip->playback : &chip->capture; int err; err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); if (err < 0) return err; err = build_via_table(viadev, substream, chip->pci, params_periods(hw_params), params_period_bytes(hw_params)); if (err < 0) return err; return err; } static int snd_via82xx_hw_free(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); viadev_t *viadev = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? &chip->playback : &chip->capture; clean_via_table(viadev, substream, chip->pci); snd_pcm_lib_free_pages(substream); return 0; } static int snd_via82xx_playback_prepare(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate); snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate); snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate); snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate); if (chip->chip_type == TYPE_VIA8233 && chip->playback.reg_offset != VIA_REG_MULTPLAY_STATUS) { unsigned int tmp; /* I don't understand this stuff but its from the documentation and this way it works */ outb(0 , VIAREG(chip, PLAYBACK_VOLUME_L)); outb(0 , VIAREG(chip, PLAYBACK_VOLUME_R)); tmp = inl(VIAREG(chip, PLAYBACK_STOP_IDX)) & ~0xfffff; outl(tmp | (0xffff * runtime->rate)/(48000/16), VIAREG(chip, PLAYBACK_STOP_IDX)); } return snd_via82xx_set_format(chip, &chip->playback, substream); } static int snd_via82xx_capture_prepare(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate); if (chip->chip_type == TYPE_VIA8233) outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIAREG(chip, CAPTURE_FIFO)); return snd_via82xx_set_format(chip, &chip->capture, substream); } static inline unsigned int snd_via82xx_cur_ptr(via82xx_t *chip, viadev_t *viadev) { unsigned int val, ptr, count, res; snd_assert(viadev->tbl_entries, return 0); if (!(inb(VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset) & VIA_REG_STAT_ACTIVE)) return 0; spin_lock(&chip->reg_lock); switch (chip->chip_type) { case TYPE_VIA686: count &= 0xffffff; /* The via686a does not have the current index register, * so we need to calculate the index from CURR_PTR. */ ptr = inl(VIAREG(chip, OFFSET_CURR_PTR) + viadev->reg_offset); count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset) & 0xffffff; if (ptr <= (unsigned int)viadev->table_addr) val = 0; else /* CURR_PTR holds the address + 8 */ val = ((ptr - (unsigned int)viadev->table_addr) / 8 - 1) % viadev->tbl_entries; break; case TYPE_VIA8233: default: count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset); val = count >> 24; count &= 0xffffff; break; } /* convert to the linear position */ ptr = viadev->idx_table[val].size; res = viadev->idx_table[val].offset + ptr - count; if (ptr < count || (res < viadev->lastpos && (res >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2))) { #ifdef POINTER_DEBUG printk("fail: val = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n", val, viadev->tbl_entries, viadev->lastpos, viadev->bufsize2, viadev->idx_table[val].offset, viadev->idx_table[val].size, count); #endif /* VIA8233 count register returns full size when end of buffer is reached */ if (ptr != count) { snd_printk("invalid via82xx_cur_ptr, using last valid pointer\n"); res = viadev->lastpos; } else { res = viadev->idx_table[val].offset + ptr; if (res < viadev->lastpos && (res >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2)) { snd_printk("invalid via82xx_cur_ptr (2), using last valid pointer\n"); res = viadev->lastpos; } } } viadev->lastpos = res; spin_unlock(&chip->reg_lock); return res; } static snd_pcm_uframes_t snd_via82xx_playback_pointer(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); return bytes_to_frames(substream->runtime, snd_via82xx_cur_ptr(chip, &chip->playback)); } static snd_pcm_uframes_t snd_via82xx_capture_pointer(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); return bytes_to_frames(substream->runtime, snd_via82xx_cur_ptr(chip, &chip->capture)); } static snd_pcm_hardware_t snd_via82xx_playback = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, .rates = 0, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = 128 * 1024, .period_bytes_min = 32, .period_bytes_max = 128 * 1024, .periods_min = 2, .periods_max = VIA_TABLE_SIZE / 2, .fifo_size = 0, }; static snd_pcm_hardware_t snd_via82xx_capture = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, .rates = 0, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = 128 * 1024, .period_bytes_min = 32, .period_bytes_max = 128 * 1024, .periods_min = 2, .periods_max = VIA_TABLE_SIZE / 2, .fifo_size = 0, }; static unsigned int channels[] = { 1, 2, 4, 6 }; #define CHANNELS sizeof(channels) / sizeof(channels[0]) static snd_pcm_hw_constraint_list_t hw_constraints_channels = { .count = CHANNELS, .list = channels, .mask = 0, }; static int snd_via82xx_playback_open(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; int err; chip->playback.substream = substream; runtime->hw = snd_via82xx_playback; runtime->hw.rates = chip->ac97->rates[AC97_RATES_FRONT_DAC]; if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000)) runtime->hw.rate_min = 48000; /* we may remove following constaint when we modify table entries in interrupt */ if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) return err; if (chip->chip_type == TYPE_VIA8233) { runtime->hw.channels_max = 6; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels); } return 0; } static int snd_via82xx_capture_open(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); snd_pcm_runtime_t *runtime = substream->runtime; int err; chip->capture.substream = substream; runtime->hw = snd_via82xx_capture; runtime->hw.rates = chip->ac97->rates[AC97_RATES_ADC]; if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000)) runtime->hw.rate_min = 48000; if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) return err; return 0; } static int snd_via82xx_playback_close(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); chip->playback.substream = NULL; return 0; } static int snd_via82xx_capture_close(snd_pcm_substream_t * substream) { via82xx_t *chip = snd_pcm_substream_chip(substream); chip->capture.substream = NULL; return 0; } static snd_pcm_ops_t snd_via82xx_playback_ops = { .open = snd_via82xx_playback_open, .close = snd_via82xx_playback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_via82xx_hw_params, .hw_free = snd_via82xx_hw_free, .prepare = snd_via82xx_playback_prepare, .trigger = snd_via82xx_playback_trigger, .pointer = snd_via82xx_playback_pointer, .page = snd_pcm_sgbuf_ops_page, }; static snd_pcm_ops_t snd_via82xx_capture_ops = { .open = snd_via82xx_capture_open, .close = snd_via82xx_capture_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = snd_via82xx_hw_params, .hw_free = snd_via82xx_hw_free, .prepare = snd_via82xx_capture_prepare, .trigger = snd_via82xx_capture_trigger, .pointer = snd_via82xx_capture_pointer, .page = snd_pcm_sgbuf_ops_page, }; static void snd_via82xx_pcm_free(snd_pcm_t *pcm) { via82xx_t *chip = snd_magic_cast(via82xx_t, pcm->private_data, return); chip->pcm = NULL; } static int __devinit snd_via82xx_pcm(via82xx_t *chip, int device, snd_pcm_t ** rpcm) { snd_pcm_t *pcm; int err; if (rpcm) *rpcm = NULL; err = snd_pcm_new(chip->card, chip->card->shortname, device, 1, 1, &pcm); if (err < 0) return err; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via82xx_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via82xx_capture_ops); pcm->private_data = chip; pcm->private_free = snd_via82xx_pcm_free; pcm->info_flags = 0; strcpy(pcm->name, chip->card->shortname); chip->pcm = pcm; if ((err = snd_pcm_lib_preallocate_sg_pages_for_all(chip->pci, pcm)) < 0) return err; if (rpcm) *rpcm = NULL; return 0; } /* * Mixer part */ static int snd_via8233_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) { static char *texts[2] = { "Line", "Mic" }; uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; uinfo->count = 1; uinfo->value.enumerated.items = 2; if (uinfo->value.enumerated.item >= 2) uinfo->value.enumerated.item = 1; strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); return 0; } static int snd_via8233_capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) { via82xx_t *chip = snd_kcontrol_chip(kcontrol); ucontrol->value.enumerated.item[0] = inb(VIAREG(chip, CAPTURE_CHANNEL)) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0; return 0; } static int snd_via8233_capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) { via82xx_t *chip = snd_kcontrol_chip(kcontrol); unsigned long flags; u8 val, oval; spin_lock_irqsave(&chip->reg_lock, flags); oval = inb(VIAREG(chip, CAPTURE_CHANNEL)); val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC; if (ucontrol->value.enumerated.item[0]) val |= VIA_REG_CAPTURE_CHANNEL_MIC; if (val != oval) outb(val, VIAREG(chip, CAPTURE_CHANNEL)); spin_unlock_irqrestore(&chip->reg_lock, flags); return val != oval; } static snd_kcontrol_new_t snd_via8233_capture_source __devinitdata = { .name = "Input Source Select", .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .info = snd_via8233_capture_source_info, .get = snd_via8233_capture_source_get, .put = snd_via8233_capture_source_put, }; static void snd_via82xx_mixer_free_ac97(ac97_t *ac97) { via82xx_t *chip = snd_magic_cast(via82xx_t, ac97->private_data, return); chip->ac97 = NULL; } static int __devinit snd_via82xx_mixer(via82xx_t *chip) { ac97_t ac97; int err; memset(&ac97, 0, sizeof(ac97)); ac97.write = snd_via82xx_codec_write; ac97.read = snd_via82xx_codec_read; ac97.wait = snd_via82xx_codec_wait; ac97.private_data = chip; ac97.private_free = snd_via82xx_mixer_free_ac97; ac97.clock = chip->ac97_clock; if ((err = snd_ac97_mixer(chip->card, &ac97, &chip->ac97)) < 0) return err; return 0; } /* * joystick */ static int snd_via82xx_joystick_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = 1; return 0; } static int snd_via82xx_joystick_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) { via82xx_t *chip = snd_kcontrol_chip(kcontrol); u16 val; pci_read_config_word(chip->pci, 0x42, &val); ucontrol->value.integer.value[0] = (val & 0x08) ? 1 : 0; return 0; } static int snd_via82xx_joystick_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) { via82xx_t *chip = snd_kcontrol_chip(kcontrol); u16 val, oval; pci_read_config_word(chip->pci, 0x42, &oval); val = oval & ~0x08; if (ucontrol->value.integer.value[0]) val |= 0x08; if (val != oval) { pci_write_config_word(chip->pci, 0x42, val); return 1; } return 0; } static snd_kcontrol_new_t snd_via82xx_joystick_control __devinitdata = { .name = "Joystick", .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = snd_via82xx_joystick_info, .get = snd_via82xx_joystick_get, .put = snd_via82xx_joystick_put, }; /* * */ static int __devinit snd_via82xx_chip_init(via82xx_t *chip) { ac97_t ac97; unsigned int val; int max_count; unsigned char pval; memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; #if 0 /* broken on K7M? */ if (chip->chip_type == TYPE_VIA686) /* disable all legacy ports */ pci_write_config_byte(chip->pci, 0x42, 0); #endif pci_read_config_byte(chip->pci, 0x40, &pval); if (! (pval & 0x01)) { /* codec not ready? */ /* deassert ACLink reset, force SYNC */ pci_write_config_byte(chip->pci, 0x41, 0xe0); udelay(100); /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ pci_write_config_byte(chip->pci, 0x41, 0x60); udelay(2); /* pci_write_config_byte(chip->pci, 0x41, 0x00); udelay(100); */ /* ACLink on, deassert ACLink reset, VSR, SGD data out */ /* note - FM data out has trouble with non VRA codecs !! */ pci_write_config_byte(chip->pci, 0x41, 0xcc); udelay(100); } /* Make sure VRA is enabled, in case we didn't do a * complete codec reset, above */ pci_read_config_byte(chip->pci, 0x41, &pval); if ((pval & 0xcc) != 0xcc) { /* ACLink on, deassert ACLink reset, VSR, SGD data out */ /* note - FM data out has trouble with non VRA codecs !! */ pci_write_config_byte(chip->pci, 0x41, 0xcc); udelay(100); } /* wait until codec ready */ max_count = ((3 * HZ) / 4) + 1; do { pci_read_config_byte(chip->pci, 0x40, &pval); if (pval & 0x01) /* primary codec ready */ break; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(1); } while (--max_count > 0); if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) snd_printk("AC'97 codec is not ready [0x%x]\n", val); /* and then reset codec.. */ snd_via82xx_codec_ready(chip, 0); snd_via82xx_codec_write(&ac97, AC97_RESET, 0x0000); snd_via82xx_codec_read(&ac97, 0); #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */ snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); max_count = ((3 * HZ) / 4) + 1; snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | VIA_REG_AC97_SECONDARY_VALID | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); do { if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) { chip->ac97_secondary = 1; goto __ac97_ok2; } set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(1); } while (--max_count > 0); /* This is ok, the most of motherboards have only one codec */ __ac97_ok2: #endif if (chip->chip_type == TYPE_VIA686) { /* route FM trap to IRQ, disable FM trap */ pci_write_config_byte(chip->pci, 0x48, 0); /* disable all GPI interrupts */ outl(0, chip->port + 0x8c); } /* disable interrupts */ snd_via82xx_channel_reset(chip, &chip->playback); snd_via82xx_channel_reset(chip, &chip->capture); return 0; } static int snd_via82xx_free(via82xx_t *chip) { if (chip->irq < 0) goto __end_hw; /* disable interrupts */ snd_via82xx_channel_reset(chip, &chip->playback); snd_via82xx_channel_reset(chip, &chip->capture); /* --- */ synchronize_irq(chip->irq); __end_hw: if (chip->res_port) { release_resource(chip->res_port); kfree_nocheck(chip->res_port); } if (chip->irq >= 0) free_irq(chip->irq, (void *)chip); if (chip->chip_type == TYPE_VIA686) { pci_write_config_byte(chip->pci, 0x42, chip->old_legacy); pci_write_config_byte(chip->pci, 0x43, chip->old_legacy_cfg); } snd_magic_kfree(chip); return 0; } static int snd_via82xx_dev_free(snd_device_t *device) { via82xx_t *chip = snd_magic_cast(via82xx_t, device->device_data, return -ENXIO); return snd_via82xx_free(chip); } static int __devinit snd_via82xx_create(snd_card_t * card, struct pci_dev *pci, int chip_type, unsigned int ac97_clock, via82xx_t ** r_via) { via82xx_t *chip; int err; static snd_device_ops_t ops = { .dev_free = snd_via82xx_dev_free, }; if ((err = pci_enable_device(pci)) < 0) return err; if ((chip = snd_magic_kcalloc(via82xx_t, 0, GFP_KERNEL)) == NULL) return -ENOMEM; chip->chip_type = chip_type; spin_lock_init(&chip->reg_lock); spin_lock_init(&chip->ac97_lock); chip->card = card; chip->pci = pci; chip->irq = -1; pci_read_config_byte(pci, 0x42, &chip->old_legacy); pci_read_config_byte(pci, 0x43, &chip->old_legacy_cfg); chip->port = pci_resource_start(pci, 0); if ((chip->res_port = request_region(chip->port, 256, card->driver)) == NULL) { snd_via82xx_free(chip); snd_printk("unable to grab ports 0x%lx-0x%lx\n", chip->port, chip->port + 256 - 1); return -EBUSY; } if (request_irq(pci->irq, snd_via82xx_interrupt, SA_INTERRUPT|SA_SHIRQ, card->driver, (void *)chip)) { snd_via82xx_free(chip); snd_printk("unable to grab IRQ %d\n", chip->irq); return -EBUSY; } chip->irq = pci->irq; if (ac97_clock >= 8000 && ac97_clock <= 48000) chip->ac97_clock = ac97_clock; pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision); synchronize_irq(chip->irq); /* initialize offsets */ switch (chip->chip_type) { case TYPE_VIA686: chip->playback.reg_offset = VIA_REG_PLAYBACK_STATUS; chip->capture.reg_offset = VIA_REG_CAPTURE_STATUS; break; case TYPE_VIA8233: /* we use multi-channel playback mode, since this mode is supported * by all VIA8233 models (and obviously suitable for our purpose). */ chip->playback.reg_offset = VIA_REG_MULTPLAY_STATUS; chip->capture.reg_offset = VIA_REG_CAPTURE_8233_STATUS; break; } if ((err = snd_via82xx_chip_init(chip)) < 0) { snd_via82xx_free(chip); return err; } if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_via82xx_free(chip); return err; } /* The 8233 ac97 controller does not implement the master bit * in the pci command register. IMHO this is a violation of the PCI spec. * We call pci_set_master here because it does not hurt. */ pci_set_master(pci); *r_via = chip; return 0; } static int __devinit snd_via82xx_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { static int dev; snd_card_t *card; via82xx_t *chip; int pcm_dev = 0; int chip_type; int err; if (dev >= SNDRV_CARDS) return -ENODEV; if (!enable[dev]) { dev++; return -ENOENT; } card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); if (card == NULL) return -ENOMEM; chip_type = pci_id->driver_data; switch (chip_type) { case TYPE_VIA686: strcpy(card->driver, "VIA686A"); strcpy(card->shortname, "VIA 82C686A/B"); break; case TYPE_VIA8233: strcpy(card->driver, "VIA8233"); strcpy(card->shortname, "VIA 8233A/C"); break; default: snd_printk(KERN_ERR "invalid chip type %d\n", chip_type); snd_card_free(card); return -EINVAL; } if ((err = snd_via82xx_create(card, pci, chip_type, ac97_clock[dev], &chip)) < 0) { snd_card_free(card); return err; } if (snd_via82xx_mixer(chip) < 0) { snd_card_free(card); return err; } if (snd_via82xx_pcm(chip, pcm_dev++, NULL) < 0) { snd_card_free(card); return err; } #if 0 if (snd_via82xx_pcm_fm(chip, pcm_dev++, NULL) < 0) { snd_card_free(card); return err; } #endif if (chip->chip_type == TYPE_VIA686) { unsigned char legacy, legacy_cfg; int rev_h = 0; legacy = chip->old_legacy; legacy_cfg = chip->old_legacy_cfg; legacy |= 0x40; /* disable MIDI */ legacy &= ~0x08; /* disable joystick */ if (chip->revision >= 0x20) { if (check_region(pci_resource_start(pci, 2), 4)) { rev_h = 0; legacy &= ~0x80; /* disable PCI I/O 2 */ } else { rev_h = 1; legacy |= 0x80; /* enable PCI I/O 2 */ } } pci_write_config_byte(pci, 0x42, legacy); pci_write_config_byte(pci, 0x43, legacy_cfg); if (rev_h && mpu_port[dev] >= 0x200) { /* force MIDI */ legacy |= 0x02; /* enable MPU */ pci_write_config_dword(pci, 0x18, (mpu_port[dev] & 0xfffc) | 0x01); } else { if (rev_h && (legacy & 0x02)) { mpu_port[dev] = pci_resource_start(pci, 2); if (mpu_port[dev] < 0x200) /* bad value */ legacy &= ~0x02; /* disable MIDI */ } else { switch (mpu_port[dev]) { /* force MIDI */ case 0x300: case 0x310: case 0x320: case 0x330: legacy_cfg &= ~(3 << 2); legacy_cfg |= (mpu_port[dev] & 0x0030) >> 2; legacy |= 0x02; break; default: /* no, use BIOS settings */ if (legacy & 0x02) mpu_port[dev] = 0x300 + ((legacy_cfg & 0x000c) << 2); } } } pci_write_config_byte(pci, 0x42, legacy); pci_write_config_byte(pci, 0x43, legacy_cfg); if (legacy & 0x02) { if (check_region(mpu_port[dev], 2)) { printk(KERN_WARNING "unable to get MPU-401 port at 0x%lx, skipping\n", mpu_port[dev]); legacy &= ~0x02; pci_write_config_byte(pci, 0x42, legacy); goto __skip_mpu; } if (snd_mpu401_uart_new(card, 0, MPU401_HW_VIA686A, mpu_port[dev], 0, pci->irq, 0, &chip->rmidi) < 0) { printk(KERN_WARNING "unable to initialize MPU-401 at 0x%lx, skipping\n", mpu_port[dev]); legacy &= ~0x02; pci_write_config_byte(pci, 0x42, legacy); goto __skip_mpu; } legacy &= ~0x40; /* enable MIDI interrupt */ pci_write_config_byte(pci, 0x42, legacy); __skip_mpu: ; } /* card switches */ err = snd_ctl_add(card, snd_ctl_new1(&snd_via82xx_joystick_control, chip)); if (err < 0) { snd_card_free(card); return err; } } else { /* VIA8233 */ err = snd_ctl_add(card, snd_ctl_new1(&snd_via8233_capture_source, chip)); if (err < 0) { snd_card_free(card); return err; } } sprintf(card->longname, "%s at 0x%lx, irq %d", card->shortname, chip->port, chip->irq); if ((err = snd_card_register(card)) < 0) { snd_card_free(card); return err; } pci_set_drvdata(pci, card); dev++; return 0; } static void __devexit snd_via82xx_remove(struct pci_dev *pci) { snd_card_free(pci_get_drvdata(pci)); pci_set_drvdata(pci, NULL); } static struct pci_driver driver = { .name = "VIA 82xx Audio", .id_table = snd_via82xx_ids, .probe = snd_via82xx_probe, .remove = __devexit_p(snd_via82xx_remove), }; static int __init alsa_card_via82xx_init(void) { int err; if ((err = pci_module_init(&driver)) < 0) { #ifdef MODULE printk(KERN_ERR "VIA 82xx soundcard not found or device busy\n"); #endif return err; } return 0; } static void __exit alsa_card_via82xx_exit(void) { pci_unregister_driver(&driver); } module_init(alsa_card_via82xx_init) module_exit(alsa_card_via82xx_exit) #ifndef MODULE /* format is: snd-via82xx=enable,index,id, mpu_port,ac97_clock */ static int __init alsa_card_via82xx_setup(char *str) { static unsigned __initdata nr_dev = 0; if (nr_dev >= SNDRV_CARDS) return 0; (void)(get_option(&str,&enable[nr_dev]) == 2 && get_option(&str,&index[nr_dev]) == 2 && get_id(&str,&id[nr_dev]) == 2 && get_option(&str,(int *)&mpu_port[nr_dev]) == 2 && get_option(&str,&ac97_clock[nr_dev]) == 2); nr_dev++; return 1; } __setup("snd-via82xx=", alsa_card_via82xx_setup); #endif /* ifndef MODULE */