| /* |
| * ALSA driver for VIA VT82xx (South Bridge) |
| * |
| * VT82C686A/B/C, VT8233A/C, VT8235 |
| * |
| * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz> |
| * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com> |
| * 2002 Takashi Iwai <tiwai@suse.de> |
| * |
| * 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 <sound/driver.h> |
| #include <asm/io.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_sgbuf.h> |
| #include <sound/pcm_params.h> |
| #include <sound/info.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/mpu401.h> |
| #define SNDRV_GET_ID |
| #include <sound/initval.h> |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| MODULE_DESCRIPTION("VIA VT82xx audio"); |
| MODULE_LICENSE("GPL"); |
| MODULE_CLASSES("{sound}"); |
| MODULE_DEVICES("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/B/C}}"); |
| |
| static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ |
| static long snd_mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1}; |
| static int snd_ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000}; |
| |
| MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_index, "Index value for VIA 82xx bridge."); |
| MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC); |
| MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s"); |
| MODULE_PARM_DESC(snd_id, "ID string for VIA 82xx bridge."); |
| MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC); |
| MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i"); |
| MODULE_PARM_DESC(snd_enable, "Enable audio part of VIA 82xx bridge."); |
| MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC); |
| MODULE_PARM(snd_mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); |
| MODULE_PARM_DESC(snd_mpu_port, "MPU-401 port."); |
| MODULE_PARM_SYNTAX(snd_mpu_port, SNDRV_PORT_DESC); |
| MODULE_PARM(snd_ac97_clock, "1-" __MODULE_STRING(SNDRV_CARDS) "l"); |
| MODULE_PARM_DESC(snd_ac97_clock, "AC'97 codec clock (default 48000Hz)."); |
| MODULE_PARM_SYNTAX(snd_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; |
| } viadev_t; |
| |
| |
| static int build_via_table(viadev_t *dev, snd_pcm_substream_t *substream, |
| struct pci_dev *pci) |
| { |
| int i, idx, ofs, rest, fragsize; |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| 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 */ |
| fragsize = snd_pcm_lib_period_bytes(substream); |
| idx = 0; |
| ofs = 0; |
| for (i = 0; i < runtime->periods; i++) { |
| rest = fragsize; |
| /* fill descriptors for a period. |
| * a period can be split to several descriptors if it's |
| * over page boundary. |
| */ |
| do { |
| int r; |
| unsigned int flag; |
| 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 == runtime->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++; |
| if (idx >= VIA_TABLE_SIZE) { |
| snd_printk(KERN_ERR "via82xx: too much table size!\n"); |
| return -EINVAL; |
| } |
| } while (rest > 0); |
| } |
| dev->tbl_entries = idx; |
| 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); |
| } |
| |
| 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_setup_periods(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; |
| int err; |
| |
| snd_via82xx_channel_reset(chip, viadev); |
| |
| err = build_via_table(viadev, substream, chip->pci); |
| if (err < 0) |
| return err; |
| |
| 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) |
| { |
| return snd_pcm_sgbuf_alloc(substream, params_buffer_bytes(hw_params)); |
| } |
| |
| static int snd_via82xx_hw_free(snd_pcm_substream_t * 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); |
| 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_setup_periods(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_setup_periods(chip, &chip->capture, substream); |
| } |
| |
| static inline unsigned int snd_via82xx_cur_ptr(via82xx_t *chip, viadev_t *viadev) |
| { |
| unsigned int val, ptr, count; |
| |
| snd_assert(viadev->tbl_entries, return 0); |
| if (!(inb(VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset) & VIA_REG_STAT_ACTIVE)) |
| return 0; |
| |
| count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset) & 0xffffff; |
| switch (chip->chip_type) { |
| case TYPE_VIA686: |
| /* 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); |
| 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: |
| /* ah, this register makes life easier for us here. */ |
| val = inb(VIAREG(chip, OFFSET_CURR_INDEX) + viadev->reg_offset) % viadev->tbl_entries; |
| break; |
| } |
| |
| /* convert to the linear position */ |
| return viadev->idx_table[val].offset + |
| viadev->idx_table[val].size - count; |
| } |
| |
| 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; |
| if ((err = snd_pcm_sgbuf_init(substream, chip->pci, 32)) < 0) |
| return err; |
| /* 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_sgbuf_init(substream, chip->pci, 32)) < 0) |
| return err; |
| 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); |
| |
| clean_via_table(&chip->playback, substream, chip->pci); |
| snd_pcm_sgbuf_delete(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); |
| |
| clean_via_table(&chip->capture, substream, chip->pci); |
| snd_pcm_sgbuf_delete(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, |
| .copy = snd_pcm_sgbuf_ops_copy_playback, |
| .silence = snd_pcm_sgbuf_ops_silence, |
| .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, |
| .copy = snd_pcm_sgbuf_ops_copy_capture, |
| .silence = snd_pcm_sgbuf_ops_silence, |
| .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 (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 *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 (!snd_enable[dev]) { |
| dev++; |
| return -ENOENT; |
| } |
| |
| card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, 0); |
| if (card == NULL) |
| return -ENOMEM; |
| |
| chip_type = 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, snd_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 && snd_mpu_port[dev] >= 0x200) { /* force MIDI */ |
| legacy |= 0x02; /* enable MPU */ |
| pci_write_config_dword(pci, 0x18, (snd_mpu_port[dev] & 0xfffc) | 0x01); |
| } else { |
| if (rev_h && (legacy & 0x02)) { |
| snd_mpu_port[dev] = pci_resource_start(pci, 2); |
| if (snd_mpu_port[dev] < 0x200) /* bad value */ |
| legacy &= ~0x02; /* disable MIDI */ |
| } else { |
| switch (snd_mpu_port[dev]) { /* force MIDI */ |
| case 0x300: |
| case 0x310: |
| case 0x320: |
| case 0x330: |
| legacy_cfg &= ~(3 << 2); |
| legacy_cfg |= (snd_mpu_port[dev] & 0x0030) >> 2; |
| legacy |= 0x02; |
| break; |
| default: /* no, use BIOS settings */ |
| if (legacy & 0x02) |
| snd_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(snd_mpu_port[dev], 2)) { |
| printk(KERN_WARNING "unable to get MPU-401 port at 0x%lx, skipping\n", snd_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, |
| snd_mpu_port[dev], 0, |
| pci->irq, 0, |
| &chip->rmidi) < 0) { |
| printk(KERN_WARNING "unable to initialize MPU-401 at 0x%lx, skipping\n", snd_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=snd_enable,snd_index,snd_id, |
| snd_mpu_port,snd_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,&snd_enable[nr_dev]) == 2 && |
| get_option(&str,&snd_index[nr_dev]) == 2 && |
| get_id(&str,&snd_id[nr_dev]) == 2 && |
| get_option(&str,(int *)&snd_mpu_port[nr_dev]) == 2 && |
| get_option(&str,&snd_ac97_clock[nr_dev]) == 2); |
| nr_dev++; |
| return 1; |
| } |
| |
| __setup("snd-via82xx=", alsa_card_via82xx_setup); |
| |
| #endif /* ifndef MODULE */ |
| |