| /* |
| * ALSA modem 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 |
| * |
| */ |
| |
| /* |
| * Changes: |
| * |
| * Sep. 2, 2004 Sasha Khapyorsky <sashak@smlink.com> |
| * Modified from original audio driver 'via82xx.c' to support AC97 |
| * modems. |
| */ |
| |
| #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 <linux/moduleparam.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/info.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/initval.h> |
| |
| #if 0 |
| #define POINTER_DEBUG |
| #endif |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| MODULE_DESCRIPTION("VIA VT82xx modem"); |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C modem,pci}}"); |
| |
| static int index = -2; /* Exclude the first card */ |
| static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ |
| static int ac97_clock = 48000; |
| |
| module_param(index, int, 0444); |
| MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge."); |
| module_param(id, charp, 0444); |
| MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge."); |
| module_param(ac97_clock, int, 0444); |
| MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); |
| |
| /* just for backward compatibility */ |
| static int enable; |
| module_param(enable, int, 0444); |
| |
| |
| /* |
| * Direct registers |
| */ |
| |
| #define VIAREG(via, x) ((via)->port + VIA_REG_##x) |
| #define VIADEV_REG(viadev, x) ((viadev)->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 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,\ |
| } |
| |
| /* modem block */ |
| DEFINE_VIA_REGSET(MO, 0x40); |
| DEFINE_VIA_REGSET(MI, 0x50); |
| |
| /* 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 */ |
| #define VIA_REG_SGD_STAT_PB_FLAG (1<<0) |
| #define VIA_REG_SGD_STAT_CP_FLAG (1<<1) |
| #define VIA_REG_SGD_STAT_FM_FLAG (1<<2) |
| #define VIA_REG_SGD_STAT_PB_EOL (1<<4) |
| #define VIA_REG_SGD_STAT_CP_EOL (1<<5) |
| #define VIA_REG_SGD_STAT_FM_EOL (1<<6) |
| #define VIA_REG_SGD_STAT_PB_STOP (1<<8) |
| #define VIA_REG_SGD_STAT_CP_STOP (1<<9) |
| #define VIA_REG_SGD_STAT_FM_STOP (1<<10) |
| #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12) |
| #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13) |
| #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14) |
| #define VIA_REG_SGD_STAT_MR_FLAG (1<<16) |
| #define VIA_REG_SGD_STAT_MW_FLAG (1<<17) |
| #define VIA_REG_SGD_STAT_MR_EOL (1<<20) |
| #define VIA_REG_SGD_STAT_MW_EOL (1<<21) |
| #define VIA_REG_SGD_STAT_MR_STOP (1<<24) |
| #define VIA_REG_SGD_STAT_MW_STOP (1<<25) |
| #define VIA_REG_SGD_STAT_MR_ACTIVE (1<<28) |
| #define VIA_REG_SGD_STAT_MW_ACTIVE (1<<29) |
| |
| #define VIA_REG_GPI_STATUS 0x88 |
| #define VIA_REG_GPI_INTR 0x8c |
| |
| #define VIA_TBL_BIT_FLAG 0x40000000 |
| #define VIA_TBL_BIT_EOL 0x80000000 |
| |
| /* pci space */ |
| #define VIA_ACLINK_STAT 0x40 |
| #define VIA_ACLINK_C11_READY 0x20 |
| #define VIA_ACLINK_C10_READY 0x10 |
| #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */ |
| #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */ |
| #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */ |
| #define VIA_ACLINK_CTRL 0x41 |
| #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */ |
| #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */ |
| #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */ |
| #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */ |
| #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */ |
| #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */ |
| #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */ |
| #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */ |
| #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\ |
| VIA_ACLINK_CTRL_RESET|\ |
| VIA_ACLINK_CTRL_PCM) |
| #define VIA_FUNC_ENABLE 0x42 |
| #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */ |
| #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */ |
| #define VIA_FUNC_RX2C_WRITE 0x20 |
| #define VIA_FUNC_SB_FIFO_EMPTY 0x10 |
| #define VIA_FUNC_ENABLE_GAME 0x08 |
| #define VIA_FUNC_ENABLE_FM 0x04 |
| #define VIA_FUNC_ENABLE_MIDI 0x02 |
| #define VIA_FUNC_ENABLE_SB 0x01 |
| #define VIA_PNP_CONTROL 0x43 |
| #define VIA_MC97_CTRL 0x44 |
| #define VIA_MC97_CTRL_ENABLE 0x80 |
| #define VIA_MC97_CTRL_SECONDARY 0x40 |
| #define VIA_MC97_CTRL_INIT (VIA_MC97_CTRL_ENABLE|\ |
| VIA_MC97_CTRL_SECONDARY) |
| |
| |
| typedef struct _snd_via82xx_modem via82xx_t; |
| typedef struct via_dev viadev_t; |
| |
| /* |
| * pcm stream |
| */ |
| |
| struct snd_via_sg_table { |
| unsigned int offset; |
| unsigned int size; |
| } ; |
| |
| #define VIA_TABLE_SIZE 255 |
| |
| struct via_dev { |
| unsigned int reg_offset; |
| unsigned long port; |
| int direction; /* playback = 0, capture = 1 */ |
| snd_pcm_substream_t *substream; |
| int running; |
| unsigned int tbl_entries; /* # descriptors */ |
| struct snd_dma_buffer table; |
| struct snd_via_sg_table *idx_table; |
| /* for recovery from the unexpected pointer */ |
| unsigned int lastpos; |
| unsigned int bufsize; |
| unsigned int bufsize2; |
| }; |
| |
| enum { TYPE_CARD_VIA82XX_MODEM = 1 }; |
| |
| #define VIA_MAX_MODEM_DEVS 2 |
| |
| struct _snd_via82xx_modem { |
| int irq; |
| |
| unsigned long port; |
| |
| unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */ |
| |
| struct pci_dev *pci; |
| snd_card_t *card; |
| |
| unsigned int num_devs; |
| unsigned int playback_devno, capture_devno; |
| viadev_t devs[VIA_MAX_MODEM_DEVS]; |
| |
| snd_pcm_t *pcms[2]; |
| |
| ac97_bus_t *ac97_bus; |
| ac97_t *ac97; |
| unsigned int ac97_clock; |
| unsigned int ac97_secondary; /* secondary AC'97 codec is present */ |
| |
| spinlock_t reg_lock; |
| snd_info_entry_t *proc_entry; |
| }; |
| |
| static struct pci_device_id snd_via82xx_modem_ids[] = { |
| { 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, }, |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids); |
| |
| /* |
| */ |
| |
| /* |
| * 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; |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); |
| |
| if (dev->table.area == NULL) { |
| /* the start of each lists must be aligned to 8 bytes, |
| * but the kernel pages are much bigger, so we don't care |
| */ |
| if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), |
| &dev->table) < 0) |
| 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; |
| } |
| ((u32 *)dev->table.area)[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); |
| ((u32 *)dev->table.area)[(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 int clean_via_table(viadev_t *dev, snd_pcm_substream_t *substream, |
| struct pci_dev *pci) |
| { |
| if (dev->table.area) { |
| snd_dma_free_pages(&dev->table); |
| dev->table.area = NULL; |
| } |
| kfree(dev->idx_table); |
| dev->idx_table = NULL; |
| return 0; |
| } |
| |
| /* |
| * 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(KERN_ERR "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, val1; |
| unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : |
| VIA_REG_AC97_SECONDARY_VALID; |
| |
| while (timeout-- > 0) { |
| val = snd_via82xx_codec_xread(chip); |
| val1 = val & (VIA_REG_AC97_BUSY | stat); |
| if (val1 == stat) |
| return val & 0xffff; |
| udelay(1); |
| } |
| return -EIO; |
| } |
| |
| static void snd_via82xx_codec_wait(ac97_t *ac97) |
| { |
| via82xx_t *chip = ac97->private_data; |
| int err; |
| err = snd_via82xx_codec_ready(chip, ac97->num); |
| /* here we need to wait fairly for long time.. */ |
| msleep(500); |
| } |
| |
| static void snd_via82xx_codec_write(ac97_t *ac97, |
| unsigned short reg, |
| unsigned short val) |
| { |
| via82xx_t *chip = ac97->private_data; |
| unsigned int xval; |
| if(reg == AC97_GPIO_STATUS) { |
| outl(val, VIAREG(chip, GPI_STATUS)); |
| return; |
| } |
| 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; |
| snd_via82xx_codec_xwrite(chip, xval); |
| snd_via82xx_codec_ready(chip, ac97->num); |
| } |
| |
| static unsigned short snd_via82xx_codec_read(ac97_t *ac97, unsigned short reg) |
| { |
| via82xx_t *chip = ac97->private_data; |
| 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; |
| while (1) { |
| if (again++ > 3) { |
| snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", ac97->num, snd_via82xx_codec_xread(chip)); |
| return 0xffff; |
| } |
| snd_via82xx_codec_xwrite(chip, xval); |
| udelay (20); |
| if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { |
| udelay(25); |
| val = snd_via82xx_codec_xread(chip); |
| break; |
| } |
| } |
| return val & 0xffff; |
| } |
| |
| static void snd_via82xx_channel_reset(via82xx_t *chip, viadev_t *viadev) |
| { |
| outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, |
| VIADEV_REG(viadev, OFFSET_CONTROL)); |
| inb(VIADEV_REG(viadev, OFFSET_CONTROL)); |
| udelay(50); |
| /* disable interrupts */ |
| outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL)); |
| /* clear interrupts */ |
| outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS)); |
| outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */ |
| // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR)); |
| viadev->lastpos = 0; |
| } |
| |
| |
| /* |
| * Interrupt handler |
| */ |
| |
| static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| via82xx_t *chip = dev_id; |
| unsigned int status; |
| unsigned int i; |
| |
| status = inl(VIAREG(chip, SGD_SHADOW)); |
| if (! (status & chip->intr_mask)) { |
| return IRQ_NONE; |
| } |
| // _skip_sgd: |
| |
| /* check status for each stream */ |
| spin_lock(&chip->reg_lock); |
| for (i = 0; i < chip->num_devs; i++) { |
| viadev_t *viadev = &chip->devs[i]; |
| unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); |
| c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED); |
| if (! c_status) |
| continue; |
| if (viadev->substream && viadev->running) { |
| spin_unlock(&chip->reg_lock); |
| snd_pcm_period_elapsed(viadev->substream); |
| spin_lock(&chip->reg_lock); |
| } |
| outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */ |
| } |
| spin_unlock(&chip->reg_lock); |
| return IRQ_HANDLED; |
| } |
| |
| /* |
| * PCM callbacks |
| */ |
| |
| /* |
| * trigger callback |
| */ |
| static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = (viadev_t *)substream->runtime->private_data; |
| unsigned char val = 0; |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| 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, VIADEV_REG(viadev, OFFSET_CONTROL)); |
| if (cmd == SNDRV_PCM_TRIGGER_STOP) |
| snd_via82xx_channel_reset(chip, viadev); |
| return 0; |
| } |
| |
| /* |
| * pointer callbacks |
| */ |
| |
| /* |
| * calculate the linear position at the given sg-buffer index and the rest count |
| */ |
| |
| #define check_invalid_pos(viadev,pos) \ |
| ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2)) |
| |
| static inline unsigned int calc_linear_pos(viadev_t *viadev, unsigned int idx, unsigned int count) |
| { |
| unsigned int size, res; |
| |
| size = viadev->idx_table[idx].size; |
| res = viadev->idx_table[idx].offset + size - count; |
| |
| /* check the validity of the calculated position */ |
| if (size < count) { |
| snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", (int)size, (int)count); |
| res = viadev->lastpos; |
| } else if (check_invalid_pos(viadev, res)) { |
| #ifdef POINTER_DEBUG |
| printk("fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, viadev->bufsize2, viadev->idx_table[idx].offset, viadev->idx_table[idx].size, count); |
| #endif |
| if (count && size < count) { |
| snd_printd(KERN_ERR "invalid via82xx_cur_ptr, using last valid pointer\n"); |
| res = viadev->lastpos; |
| } else { |
| if (! count) |
| /* bogus count 0 on the DMA boundary? */ |
| res = viadev->idx_table[idx].offset; |
| else |
| /* count register returns full size when end of buffer is reached */ |
| res = viadev->idx_table[idx].offset + size; |
| if (check_invalid_pos(viadev, res)) { |
| snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), using last valid pointer\n"); |
| res = viadev->lastpos; |
| } |
| } |
| } |
| viadev->lastpos = res; /* remember the last position */ |
| if (res >= viadev->bufsize) |
| res -= viadev->bufsize; |
| return res; |
| } |
| |
| /* |
| * get the current pointer on via686 |
| */ |
| static snd_pcm_uframes_t snd_via686_pcm_pointer(snd_pcm_substream_t *substream) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = (viadev_t *)substream->runtime->private_data; |
| unsigned int idx, ptr, count, res; |
| |
| snd_assert(viadev->tbl_entries, return 0); |
| if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE)) |
| return 0; |
| |
| spin_lock(&chip->reg_lock); |
| count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff; |
| /* The via686a does not have the current index register, |
| * so we need to calculate the index from CURR_PTR. |
| */ |
| ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR)); |
| if (ptr <= (unsigned int)viadev->table.addr) |
| idx = 0; |
| else /* CURR_PTR holds the address + 8 */ |
| idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries; |
| res = calc_linear_pos(viadev, idx, count); |
| spin_unlock(&chip->reg_lock); |
| |
| return bytes_to_frames(substream->runtime, res); |
| } |
| |
| /* |
| * hw_params callback: |
| * allocate the buffer and build up the buffer description table |
| */ |
| 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 = (viadev_t *)substream->runtime->private_data; |
| 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; |
| |
| snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params)); |
| snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0); |
| |
| return 0; |
| } |
| |
| /* |
| * hw_free callback: |
| * clean up the buffer description table and release the buffer |
| */ |
| static int snd_via82xx_hw_free(snd_pcm_substream_t * substream) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = (viadev_t *)substream->runtime->private_data; |
| |
| clean_via_table(viadev, substream, chip->pci); |
| snd_pcm_lib_free_pages(substream); |
| return 0; |
| } |
| |
| |
| /* |
| * set up the table pointer |
| */ |
| static void snd_via82xx_set_table_ptr(via82xx_t *chip, viadev_t *viadev) |
| { |
| snd_via82xx_codec_ready(chip, chip->ac97_secondary); |
| outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR)); |
| udelay(20); |
| snd_via82xx_codec_ready(chip, chip->ac97_secondary); |
| } |
| |
| /* |
| * prepare callback for playback and capture |
| */ |
| static int snd_via82xx_pcm_prepare(snd_pcm_substream_t *substream) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = (viadev_t *)substream->runtime->private_data; |
| |
| snd_via82xx_channel_reset(chip, viadev); |
| /* this must be set after channel_reset */ |
| snd_via82xx_set_table_ptr(chip, viadev); |
| outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG, |
| VIADEV_REG(viadev, OFFSET_TYPE)); |
| return 0; |
| } |
| |
| /* |
| * pcm hardware definition, identical for both playback and capture |
| */ |
| static snd_pcm_hardware_t snd_via82xx_hw = |
| { |
| .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| /* SNDRV_PCM_INFO_RESUME | */ |
| SNDRV_PCM_INFO_PAUSE), |
| .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
| .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, |
| .rate_min = 8000, |
| .rate_max = 16000, |
| .channels_min = 1, |
| .channels_max = 1, |
| .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, |
| }; |
| |
| |
| /* |
| * open callback skeleton |
| */ |
| static int snd_via82xx_modem_pcm_open(via82xx_t *chip, viadev_t *viadev, snd_pcm_substream_t * substream) |
| { |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; |
| static snd_pcm_hw_constraint_list_t hw_constraints_rates = { |
| .count = ARRAY_SIZE(rates), |
| .list = rates, |
| .mask = 0, |
| }; |
| |
| runtime->hw = snd_via82xx_hw; |
| |
| if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates)) < 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; |
| |
| runtime->private_data = viadev; |
| viadev->substream = substream; |
| |
| return 0; |
| } |
| |
| |
| /* |
| * open callback for playback |
| */ |
| static int snd_via82xx_playback_open(snd_pcm_substream_t * substream) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = &chip->devs[chip->playback_devno + substream->number]; |
| |
| return snd_via82xx_modem_pcm_open(chip, viadev, substream); |
| } |
| |
| /* |
| * open callback for capture |
| */ |
| static int snd_via82xx_capture_open(snd_pcm_substream_t * substream) |
| { |
| via82xx_t *chip = snd_pcm_substream_chip(substream); |
| viadev_t *viadev = &chip->devs[chip->capture_devno + substream->pcm->device]; |
| |
| return snd_via82xx_modem_pcm_open(chip, viadev, substream); |
| } |
| |
| /* |
| * close callback |
| */ |
| static int snd_via82xx_pcm_close(snd_pcm_substream_t * substream) |
| { |
| viadev_t *viadev = (viadev_t *)substream->runtime->private_data; |
| |
| viadev->substream = NULL; |
| return 0; |
| } |
| |
| |
| /* via686 playback callbacks */ |
| static snd_pcm_ops_t snd_via686_playback_ops = { |
| .open = snd_via82xx_playback_open, |
| .close = snd_via82xx_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = snd_via82xx_hw_params, |
| .hw_free = snd_via82xx_hw_free, |
| .prepare = snd_via82xx_pcm_prepare, |
| .trigger = snd_via82xx_pcm_trigger, |
| .pointer = snd_via686_pcm_pointer, |
| .page = snd_pcm_sgbuf_ops_page, |
| }; |
| |
| /* via686 capture callbacks */ |
| static snd_pcm_ops_t snd_via686_capture_ops = { |
| .open = snd_via82xx_capture_open, |
| .close = snd_via82xx_pcm_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = snd_via82xx_hw_params, |
| .hw_free = snd_via82xx_hw_free, |
| .prepare = snd_via82xx_pcm_prepare, |
| .trigger = snd_via82xx_pcm_trigger, |
| .pointer = snd_via686_pcm_pointer, |
| .page = snd_pcm_sgbuf_ops_page, |
| }; |
| |
| |
| static void init_viadev(via82xx_t *chip, int idx, unsigned int reg_offset, int direction) |
| { |
| chip->devs[idx].reg_offset = reg_offset; |
| chip->devs[idx].direction = direction; |
| chip->devs[idx].port = chip->port + reg_offset; |
| } |
| |
| /* |
| * create a pcm instance for via686a/b |
| */ |
| static int __devinit snd_via686_pcm_new(via82xx_t *chip) |
| { |
| snd_pcm_t *pcm; |
| int err; |
| |
| chip->playback_devno = 0; |
| chip->capture_devno = 1; |
| chip->num_devs = 2; |
| chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */ |
| |
| err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm); |
| if (err < 0) |
| return err; |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops); |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops); |
| pcm->dev_class = SNDRV_PCM_CLASS_MODEM; |
| pcm->private_data = chip; |
| strcpy(pcm->name, chip->card->shortname); |
| chip->pcms[0] = pcm; |
| init_viadev(chip, 0, VIA_REG_MO_STATUS, 0); |
| init_viadev(chip, 1, VIA_REG_MI_STATUS, 1); |
| |
| if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
| snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0) |
| return err; |
| |
| return 0; |
| } |
| |
| |
| /* |
| * Mixer part |
| */ |
| |
| |
| static void snd_via82xx_mixer_free_ac97_bus(ac97_bus_t *bus) |
| { |
| via82xx_t *chip = bus->private_data; |
| chip->ac97_bus = NULL; |
| } |
| |
| static void snd_via82xx_mixer_free_ac97(ac97_t *ac97) |
| { |
| via82xx_t *chip = ac97->private_data; |
| chip->ac97 = NULL; |
| } |
| |
| |
| static int __devinit snd_via82xx_mixer_new(via82xx_t *chip) |
| { |
| ac97_template_t ac97; |
| int err; |
| static ac97_bus_ops_t ops = { |
| .write = snd_via82xx_codec_write, |
| .read = snd_via82xx_codec_read, |
| .wait = snd_via82xx_codec_wait, |
| }; |
| |
| if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0) |
| return err; |
| chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus; |
| chip->ac97_bus->clock = chip->ac97_clock; |
| |
| memset(&ac97, 0, sizeof(ac97)); |
| ac97.private_data = chip; |
| ac97.private_free = snd_via82xx_mixer_free_ac97; |
| ac97.pci = chip->pci; |
| ac97.scaps = AC97_SCAP_SKIP_AUDIO; |
| ac97.num = chip->ac97_secondary; |
| |
| if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) |
| return err; |
| |
| return 0; |
| } |
| |
| |
| /* |
| * proc interface |
| */ |
| static void snd_via82xx_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) |
| { |
| via82xx_t *chip = entry->private_data; |
| int i; |
| |
| snd_iprintf(buffer, "%s\n\n", chip->card->longname); |
| for (i = 0; i < 0xa0; i += 4) { |
| snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i)); |
| } |
| } |
| |
| static void __devinit snd_via82xx_proc_init(via82xx_t *chip) |
| { |
| snd_info_entry_t *entry; |
| |
| if (! snd_card_proc_new(chip->card, "via82xx", &entry)) |
| snd_info_set_text_ops(entry, chip, 1024, snd_via82xx_proc_read); |
| } |
| |
| /* |
| * |
| */ |
| |
| static int snd_via82xx_chip_init(via82xx_t *chip) |
| { |
| unsigned int val; |
| unsigned long end_time; |
| unsigned char pval; |
| |
| pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); |
| if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) { |
| pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT); |
| udelay(100); |
| } |
| |
| pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); |
| if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */ |
| /* deassert ACLink reset, force SYNC */ |
| pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, |
| VIA_ACLINK_CTRL_ENABLE | |
| VIA_ACLINK_CTRL_RESET | |
| VIA_ACLINK_CTRL_SYNC); |
| udelay(100); |
| #if 1 /* FIXME: should we do full reset here for all chip models? */ |
| pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00); |
| udelay(100); |
| #else |
| /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ |
| pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, |
| VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC); |
| udelay(2); |
| #endif |
| /* ACLink on, deassert ACLink reset, VSR, SGD data out */ |
| pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); |
| udelay(100); |
| } |
| |
| pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval); |
| if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) { |
| /* ACLink on, deassert ACLink reset, VSR, SGD data out */ |
| pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); |
| udelay(100); |
| } |
| |
| /* wait until codec ready */ |
| end_time = jiffies + msecs_to_jiffies(750); |
| do { |
| pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); |
| if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ |
| break; |
| set_current_state(TASK_UNINTERRUPTIBLE); |
| schedule_timeout(1); |
| } while (time_before(jiffies, end_time)); |
| |
| if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) |
| snd_printk("AC'97 codec is not ready [0x%x]\n", val); |
| |
| 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)); |
| end_time = jiffies + msecs_to_jiffies(750); |
| 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 (time_before(jiffies, end_time)); |
| /* This is ok, the most of motherboards have only one codec */ |
| |
| __ac97_ok2: |
| |
| /* route FM trap to IRQ, disable FM trap */ |
| // pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0); |
| /* disable all GPI interrupts */ |
| outl(0, VIAREG(chip, GPI_INTR)); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| /* |
| * power management |
| */ |
| static int snd_via82xx_suspend(snd_card_t *card, pm_message_t state) |
| { |
| via82xx_t *chip = card->pm_private_data; |
| int i; |
| |
| for (i = 0; i < 2; i++) |
| if (chip->pcms[i]) |
| snd_pcm_suspend_all(chip->pcms[i]); |
| for (i = 0; i < chip->num_devs; i++) |
| snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| synchronize_irq(chip->irq); |
| snd_ac97_suspend(chip->ac97); |
| pci_set_power_state(chip->pci, 3); |
| pci_disable_device(chip->pci); |
| return 0; |
| } |
| |
| static int snd_via82xx_resume(snd_card_t *card) |
| { |
| via82xx_t *chip = card->pm_private_data; |
| int i; |
| |
| pci_enable_device(chip->pci); |
| pci_set_power_state(chip->pci, 0); |
| pci_set_master(chip->pci); |
| |
| snd_via82xx_chip_init(chip); |
| |
| snd_ac97_resume(chip->ac97); |
| |
| for (i = 0; i < chip->num_devs; i++) |
| snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| |
| return 0; |
| } |
| #endif /* CONFIG_PM */ |
| |
| static int snd_via82xx_free(via82xx_t *chip) |
| { |
| unsigned int i; |
| |
| if (chip->irq < 0) |
| goto __end_hw; |
| /* disable interrupts */ |
| for (i = 0; i < chip->num_devs; i++) |
| snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| synchronize_irq(chip->irq); |
| __end_hw: |
| if (chip->irq >= 0) |
| free_irq(chip->irq, (void *)chip); |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| kfree(chip); |
| return 0; |
| } |
| |
| static int snd_via82xx_dev_free(snd_device_t *device) |
| { |
| via82xx_t *chip = device->device_data; |
| return snd_via82xx_free(chip); |
| } |
| |
| static int __devinit snd_via82xx_create(snd_card_t * card, |
| struct pci_dev *pci, |
| int chip_type, |
| int revision, |
| 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 = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) { |
| pci_disable_device(pci); |
| return -ENOMEM; |
| } |
| |
| spin_lock_init(&chip->reg_lock); |
| chip->card = card; |
| chip->pci = pci; |
| chip->irq = -1; |
| |
| if ((err = pci_request_regions(pci, card->driver)) < 0) { |
| kfree(chip); |
| pci_disable_device(pci); |
| return err; |
| } |
| chip->port = pci_resource_start(pci, 0); |
| if (request_irq(pci->irq, snd_via82xx_interrupt, SA_INTERRUPT|SA_SHIRQ, |
| card->driver, (void *)chip)) { |
| snd_printk("unable to grab IRQ %d\n", pci->irq); |
| snd_via82xx_free(chip); |
| return -EBUSY; |
| } |
| chip->irq = pci->irq; |
| if (ac97_clock >= 8000 && ac97_clock <= 48000) |
| chip->ac97_clock = ac97_clock; |
| synchronize_irq(chip->irq); |
| |
| 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); |
| |
| snd_card_set_dev(card, &pci->dev); |
| |
| *r_via = chip; |
| return 0; |
| } |
| |
| |
| static int __devinit snd_via82xx_probe(struct pci_dev *pci, |
| const struct pci_device_id *pci_id) |
| { |
| snd_card_t *card; |
| via82xx_t *chip; |
| unsigned char revision; |
| int chip_type = 0, card_type; |
| unsigned int i; |
| int err; |
| |
| card = snd_card_new(index, id, THIS_MODULE, 0); |
| if (card == NULL) |
| return -ENOMEM; |
| |
| card_type = pci_id->driver_data; |
| pci_read_config_byte(pci, PCI_REVISION_ID, &revision); |
| switch (card_type) { |
| case TYPE_CARD_VIA82XX_MODEM: |
| strcpy(card->driver, "VIA82XX-MODEM"); |
| sprintf(card->shortname, "VIA 82XX modem"); |
| break; |
| default: |
| snd_printk(KERN_ERR "invalid card type %d\n", card_type); |
| err = -EINVAL; |
| goto __error; |
| } |
| |
| if ((err = snd_via82xx_create(card, pci, chip_type, revision, |
| ac97_clock, &chip)) < 0) |
| goto __error; |
| if ((err = snd_via82xx_mixer_new(chip)) < 0) |
| goto __error; |
| |
| if ((err = snd_via686_pcm_new(chip)) < 0 ) |
| goto __error; |
| |
| snd_card_set_pm_callback(card, snd_via82xx_suspend, snd_via82xx_resume, chip); |
| |
| /* disable interrupts */ |
| for (i = 0; i < chip->num_devs; i++) |
| snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| |
| sprintf(card->longname, "%s at 0x%lx, irq %d", |
| card->shortname, chip->port, chip->irq); |
| |
| snd_via82xx_proc_init(chip); |
| |
| if ((err = snd_card_register(card)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| pci_set_drvdata(pci, card); |
| return 0; |
| |
| __error: |
| snd_card_free(card); |
| return err; |
| } |
| |
| 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 Modem", |
| .owner = THIS_MODULE, |
| .id_table = snd_via82xx_modem_ids, |
| .probe = snd_via82xx_probe, |
| .remove = __devexit_p(snd_via82xx_remove), |
| SND_PCI_PM_CALLBACKS |
| }; |
| |
| static int __init alsa_card_via82xx_init(void) |
| { |
| return pci_register_driver(&driver); |
| } |
| |
| static void __exit alsa_card_via82xx_exit(void) |
| { |
| pci_unregister_driver(&driver); |
| } |
| |
| module_init(alsa_card_via82xx_init) |
| module_exit(alsa_card_via82xx_exit) |