| /* |
| * ALSA driver for VIA VT82C686A (South Bridge) |
| * |
| * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz> |
| * |
| * 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/slab.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/info.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/mpu401.h> |
| #define SNDRV_GET_ID |
| #include <sound/initval.h> |
| |
| EXPORT_NO_SYMBOLS; |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| MODULE_DESCRIPTION("VIA VT82C686A"); |
| MODULE_LICENSE("GPL"); |
| MODULE_CLASSES("{sound}"); |
| MODULE_DEVICES("{{VIA,VT82C686A,pci},{VIA,VT82C686B}}"); |
| |
| 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 82C686A 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 82C686A 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 82C686A 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"); |
| |
| /* |
| * Direct registers |
| */ |
| |
| #ifndef PCI_DEVICE_ID_VIA_82C686_5 |
| #define PCI_DEVICE_ID_VIA_82C686_5 0x3058 |
| #endif |
| |
| #define VIAREG(via, x) ((via)->port + VIA_REG_##x) |
| |
| /* 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_PAUSE 0x08 /* RW */ |
| #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */ |
| #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type */ |
| #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_CURR_COUNT 0x0c /* dword - channel current count */ |
| /* playback block */ |
| #define VIA_REG_PLAYBACK_STATUS 0x00 /* byte - channel status */ |
| #define VIA_REG_PLAYBACK_CONTROL 0x01 /* byte - channel control */ |
| #define VIA_REG_PLAYBACK_TYPE 0x02 /* byte - channel type */ |
| #define VIA_REG_PLAYBACK_TABLE_PTR 0x04 /* dword - channel table pointer */ |
| #define VIA_REG_PLAYBACK_CURR_PTR 0x04 /* dword - channel current pointer */ |
| #define VIA_REG_PLAYBACK_CURR_COUNT 0x0c /* dword - channel current count */ |
| /* capture block */ |
| #define VIA_REG_CAPTURE_STATUS 0x10 /* byte - channel status */ |
| #define VIA_REG_CAPTURE_CONTROL 0x11 /* byte - channel control */ |
| #define VIA_REG_CAPTURE_TYPE 0x12 /* byte - channel type */ |
| #define VIA_REG_CAPTURE_TABLE_PTR 0x14 /* dword - channel table pointer */ |
| #define VIA_REG_CAPTURE_CURR_PTR 0x14 /* dword - channel current pointer */ |
| #define VIA_REG_CAPTURE_CURR_COUNT 0x1c /* dword - channel current count */ |
| /* FM block */ |
| #define VIA_REG_FM_STATUS 0x20 /* byte - channel status */ |
| #define VIA_REG_FM_CONTROL 0x21 /* byte - channel control */ |
| #define VIA_REG_FM_TYPE 0x22 /* byte - channel type */ |
| #define VIA_REG_FM_TABLE_PTR 0x24 /* dword - channel table pointer */ |
| #define VIA_REG_FM_CURR_PTR 0x24 /* dword - channel current pointer */ |
| #define VIA_REG_FM_CURR_COUNT 0x2c /* dword - channel current count */ |
| /* 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_MAX_FRAGS 32 |
| |
| /* |
| * |
| */ |
| |
| typedef struct { |
| unsigned long reg_offset; |
| unsigned int *table; |
| dma_addr_t table_addr; |
| snd_pcm_substream_t *substream; |
| dma_addr_t physbuf; |
| unsigned int size; |
| unsigned int fragsize; |
| unsigned int frags; |
| unsigned int lastptr; |
| unsigned int lastcount; |
| } viadev_t; |
| |
| typedef struct _snd_via686a via686a_t; |
| #define chip_t via686a_t |
| |
| struct _snd_via686a { |
| int irq; |
| |
| unsigned long port; |
| struct resource *res_port; |
| unsigned char revision; |
| |
| unsigned char old_legacy; |
| unsigned char old_legacy_cfg; |
| |
| struct pci_dev *pci; |
| snd_card_t *card; |
| |
| snd_pcm_t *pcm; |
| snd_pcm_t *pcm_fm; |
| viadev_t playback; |
| viadev_t capture; |
| viadev_t playback_fm; |
| |
| 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; |
| |
| void *tables; |
| dma_addr_t tables_addr; |
| }; |
| |
| static struct pci_device_id snd_via686a_ids[] __devinitdata = { |
| { 0x1106, 0x3058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* 686A */ |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, snd_via686a_ids); |
| |
| /* |
| * Basic I/O |
| */ |
| |
| static inline unsigned int snd_via686a_codec_xread(via686a_t *chip) |
| { |
| return inl(VIAREG(chip, AC97)); |
| } |
| |
| static inline void snd_via686a_codec_xwrite(via686a_t *chip, unsigned int val) |
| { |
| outl(val, VIAREG(chip, AC97)); |
| } |
| |
| static int snd_via686a_codec_ready(via686a_t *chip, int secondary) |
| { |
| unsigned int timeout = 1000; /* 1ms */ |
| unsigned int val; |
| |
| while (timeout-- > 0) { |
| udelay(1); |
| if (!((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_BUSY)) |
| return val & 0xffff; |
| } |
| snd_printk("codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via686a_codec_xread(chip)); |
| return -EIO; |
| } |
| |
| static int snd_via686a_codec_valid(via686a_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_via686a_codec_xread(chip)) & stat) |
| return val & 0xffff; |
| } |
| snd_printk("codec_valid: codec %i is not valid [0x%x]\n", secondary, snd_via686a_codec_xread(chip)); |
| return -EIO; |
| } |
| |
| static void snd_via686a_codec_wait(ac97_t *ac97) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return); |
| int err; |
| err = snd_via686a_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_via686a_codec_write(ac97_t *ac97, |
| unsigned short reg, |
| unsigned short val) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_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_via686a_codec_xwrite(chip, xval); |
| snd_via686a_codec_ready(chip, ac97->num); |
| spin_unlock(&chip->ac97_lock); |
| } |
| |
| static unsigned short snd_via686a_codec_read(ac97_t *ac97, unsigned short reg) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return ~0); |
| unsigned int xval, val = 0xffff; |
| int again = 0; |
| |
| xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; |
| xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; |
| xval = (!ac97->num ? VIA_REG_AC97_PRIMARY_VALID : VIA_REG_AC97_SECONDARY_VALID); |
| xval |= VIA_REG_AC97_READ; |
| xval |= reg << VIA_REG_AC97_CMD_SHIFT; |
| spin_lock(&chip->ac97_lock); |
| while (1) { |
| if (again++ > 3) { |
| spin_unlock(&chip->ac97_lock); |
| return 0xffff; |
| } |
| snd_via686a_codec_xwrite(chip, xval); |
| if (snd_via686a_codec_ready(chip, ac97->num) < 0) |
| continue; |
| if (snd_via686a_codec_valid(chip, ac97->num) >= 0) { |
| udelay(25); |
| val = snd_via686a_codec_xread(chip); |
| break; |
| } |
| } |
| spin_unlock(&chip->ac97_lock); |
| return val & 0xffff; |
| } |
| |
| #if 0 |
| static void snd_via686a_channel_print(via686a_t *chip, viadev_t *viadev) |
| { |
| unsigned long port = chip->port + viadev->reg_offset; |
| |
| printk("[0x%x] status = 0x%x, control = 0x%x, type = 0x%x, ptr = 0x%x, count = 0x%x\n", |
| port, |
| inb(port + VIA_REG_OFFSET_STATUS), |
| inb(port + VIA_REG_OFFSET_CONTROL), |
| inb(port + VIA_REG_OFFSET_TYPE), |
| inl(port + VIA_REG_OFFSET_CURR_PTR), |
| inl(port + VIA_REG_OFFSET_CURR_COUNT)); |
| } |
| #endif |
| |
| static void snd_via686a_channel_reset(via686a_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); |
| outb(0x00, port + VIA_REG_OFFSET_CONTROL); |
| outb(0xff, port + VIA_REG_OFFSET_STATUS); |
| outb(0x00, port + VIA_REG_OFFSET_TYPE); |
| outl(0, port + VIA_REG_OFFSET_CURR_PTR); |
| } |
| |
| static int snd_via686a_trigger(via686a_t *chip, viadev_t *viadev, int cmd) |
| { |
| unsigned char val = 0; |
| unsigned long port = chip->port + viadev->reg_offset; |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| val = VIA_REG_CTRL_START; |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| val = VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET; |
| break; |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| val = VIA_REG_CTRL_PAUSE; |
| break; |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| val = 0; |
| break; |
| default: |
| return -EINVAL; |
| } |
| outb(val, port + VIA_REG_OFFSET_CONTROL); |
| if (cmd == SNDRV_PCM_TRIGGER_STOP) |
| snd_via686a_channel_reset(chip, viadev); |
| return 0; |
| } |
| |
| static void snd_via686a_setup_periods(via686a_t *chip, viadev_t *viadev, |
| snd_pcm_substream_t *substream) |
| { |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int idx, frags; |
| unsigned int *table = viadev->table; |
| unsigned long port = chip->port + viadev->reg_offset; |
| |
| viadev->physbuf = runtime->dma_addr; |
| viadev->size = snd_pcm_lib_buffer_bytes(substream); |
| viadev->fragsize = snd_pcm_lib_period_bytes(substream); |
| viadev->frags = runtime->periods; |
| viadev->lastptr = ~0; |
| viadev->lastcount = ~0; |
| |
| snd_via686a_channel_reset(chip, viadev); |
| outl(viadev->table_addr, port + VIA_REG_OFFSET_TABLE_PTR); |
| 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); |
| if (viadev->size == viadev->fragsize) { |
| table[0] = cpu_to_le32(viadev->physbuf); |
| table[1] = cpu_to_le32(0xc0000000 | /* EOL + flag */ |
| viadev->fragsize); |
| } else { |
| frags = viadev->size / viadev->fragsize; |
| for (idx = 0; idx < frags - 1; idx++) { |
| table[(idx << 1) + 0] = cpu_to_le32(viadev->physbuf + (idx * viadev->fragsize)); |
| table[(idx << 1) + 1] = cpu_to_le32(0x40000000 | /* flag */ |
| viadev->fragsize); |
| } |
| table[((frags-1) << 1) + 0] = cpu_to_le32(viadev->physbuf + ((frags-1) * viadev->fragsize)); |
| table[((frags-1) << 1) + 1] = cpu_to_le32(0x80000000 | /* EOL */ |
| viadev->fragsize); |
| } |
| } |
| |
| /* |
| * Interrupt handler |
| */ |
| |
| static inline void snd_via686a_update(via686a_t *chip, viadev_t *viadev) |
| { |
| snd_pcm_period_elapsed(viadev->substream); |
| outb(VIA_REG_STAT_FLAG | VIA_REG_STAT_EOL, VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset); |
| } |
| |
| static void snd_via686a_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, dev_id, return); |
| unsigned int status; |
| |
| status = inl(VIAREG(chip, SGD_SHADOW)); |
| if ((status & 0x00000077) == 0) { |
| if (chip->rmidi != NULL) { |
| snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs); |
| } |
| return; |
| } |
| if (inb(VIAREG(chip, PLAYBACK_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG)) |
| snd_via686a_update(chip, &chip->playback); |
| if (inb(VIAREG(chip, FM_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG)) |
| snd_via686a_update(chip, &chip->playback_fm); |
| if (inb(VIAREG(chip, CAPTURE_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG)) |
| snd_via686a_update(chip, &chip->capture); |
| } |
| |
| /* |
| * PCM part |
| */ |
| |
| static int snd_via686a_playback_trigger(snd_pcm_substream_t * substream, |
| int cmd) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_via686a_trigger(chip, &chip->playback, cmd); |
| } |
| |
| static int snd_via686a_capture_trigger(snd_pcm_substream_t * substream, |
| int cmd) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_via686a_trigger(chip, &chip->capture, cmd); |
| } |
| |
| static int snd_via686a_hw_params(snd_pcm_substream_t * substream, |
| snd_pcm_hw_params_t * hw_params) |
| { |
| return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| } |
| |
| static int snd_via686a_hw_free(snd_pcm_substream_t * substream) |
| { |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| static int snd_via686a_playback_prepare(snd_pcm_substream_t * substream) |
| { |
| via686a_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_via686a_setup_periods(chip, &chip->playback, substream); |
| return 0; |
| } |
| |
| static int snd_via686a_capture_prepare(snd_pcm_substream_t * substream) |
| { |
| via686a_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); |
| snd_via686a_setup_periods(chip, &chip->capture, substream); |
| return 0; |
| } |
| |
| static inline unsigned int snd_via686a_cur_ptr(via686a_t *chip, viadev_t *viadev) |
| { |
| unsigned int val, ptr, count; |
| // unsigned int tmp; |
| |
| ptr = inl(VIAREG(chip, OFFSET_CURR_PTR) + viadev->reg_offset); |
| count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset); |
| if (ptr == viadev->lastptr && count > viadev->lastcount) |
| ptr += 8; |
| if (!(inb(VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset) & VIA_REG_STAT_ACTIVE)) |
| return 0; |
| // tmp = |
| val = (((unsigned int)(ptr - viadev->table_addr) / 8) - 1) % viadev->frags; |
| val *= viadev->fragsize; |
| val += viadev->fragsize - count; |
| viadev->lastptr = ptr; |
| viadev->lastcount = count; |
| // printk("pointer: ptr = 0x%x (%i), count = 0x%x, val = 0x%x\n", ptr, tmp, count, val); |
| return val; |
| } |
| |
| static snd_pcm_uframes_t snd_via686a_playback_pointer(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->playback)); |
| } |
| |
| static snd_pcm_uframes_t snd_via686a_capture_pointer(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->capture)); |
| } |
| |
| static snd_pcm_hardware_t snd_via686a_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: 1, |
| periods_max: VIA_MAX_FRAGS, |
| fifo_size: 0, |
| }; |
| |
| static snd_pcm_hardware_t snd_via686a_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: 1, |
| periods_max: VIA_MAX_FRAGS, |
| fifo_size: 0, |
| }; |
| |
| static int snd_via686a_playback_open(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| |
| chip->playback.substream = substream; |
| runtime->hw = snd_via686a_playback; |
| runtime->hw.rates = chip->ac97->rates_front_dac; |
| 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_via686a_capture_open(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| |
| chip->capture.substream = substream; |
| runtime->hw = snd_via686a_capture; |
| runtime->hw.rates = chip->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_via686a_playback_close(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->playback.substream = NULL; |
| /* disable DAC power */ |
| snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0200, 0x0200); |
| return 0; |
| } |
| |
| static int snd_via686a_capture_close(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->capture.substream = NULL; |
| /* disable ADC power */ |
| snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0100, 0x0100); |
| return 0; |
| } |
| |
| static snd_pcm_ops_t snd_via686a_playback_ops = { |
| open: snd_via686a_playback_open, |
| close: snd_via686a_playback_close, |
| ioctl: snd_pcm_lib_ioctl, |
| hw_params: snd_via686a_hw_params, |
| hw_free: snd_via686a_hw_free, |
| prepare: snd_via686a_playback_prepare, |
| trigger: snd_via686a_playback_trigger, |
| pointer: snd_via686a_playback_pointer, |
| }; |
| |
| static snd_pcm_ops_t snd_via686a_capture_ops = { |
| open: snd_via686a_capture_open, |
| close: snd_via686a_capture_close, |
| ioctl: snd_pcm_lib_ioctl, |
| hw_params: snd_via686a_hw_params, |
| hw_free: snd_via686a_hw_free, |
| prepare: snd_via686a_capture_prepare, |
| trigger: snd_via686a_capture_trigger, |
| pointer: snd_via686a_capture_pointer, |
| }; |
| |
| static void snd_via686a_pcm_free(snd_pcm_t *pcm) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, pcm->private_data, return); |
| chip->pcm = NULL; |
| snd_pcm_lib_preallocate_free_for_all(pcm); |
| } |
| |
| static int __devinit snd_via686a_pcm(via686a_t *chip, int device, snd_pcm_t ** rpcm) |
| { |
| snd_pcm_t *pcm; |
| int err; |
| |
| if (rpcm) |
| *rpcm = NULL; |
| err = snd_pcm_new(chip->card, "VIA 82C686A", device, 1, 1, &pcm); |
| if (err < 0) |
| return err; |
| |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686a_playback_ops); |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686a_capture_ops); |
| |
| pcm->private_data = chip; |
| pcm->private_free = snd_via686a_pcm_free; |
| pcm->info_flags = 0; |
| strcpy(pcm->name, "VIA 82C686A"); |
| chip->pcm = pcm; |
| |
| snd_pcm_lib_preallocate_pci_pages_for_all(chip->pci, pcm, 64*1024, 128*1024); |
| |
| if (rpcm) |
| *rpcm = NULL; |
| return 0; |
| } |
| |
| #if 0 |
| |
| /* |
| * PCM code - FM channel |
| */ |
| |
| static int snd_via686a_playback_fm_ioctl(snd_pcm_substream_t * substream, |
| unsigned int cmd, |
| void *arg) |
| { |
| return snd_pcm_lib_ioctl(substream, cmd, arg); |
| } |
| |
| static int snd_via686a_playback_fm_trigger(snd_pcm_substream_t * substream, |
| int cmd) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_via686a_trigger(chip, &chip->playback_fm, cmd); |
| } |
| |
| static int snd_via686a_playback_fm_prepare(snd_pcm_substream_t * substream) |
| { |
| via686a_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_via686a_setup_periods(chip, &chip->playback_fm, substream); |
| return 0; |
| } |
| |
| static snd_pcm_uframes_t snd_via686a_playback_fm_pointer(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->playback_fm)); |
| } |
| |
| static snd_pcm_hardware_t snd_via686a_playback_fm = |
| { |
| 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_S16_LE, |
| rates: SNDRV_PCM_RATE_KNOT, |
| rate_min: 24000, |
| rate_max: 24000, |
| channels_min: 2, |
| channels_max: 2, |
| buffer_bytes_max: 128 * 1024, |
| period_bytes_min: 32, |
| period_bytes_max: 128 * 1024, |
| periods_min: 1, |
| periods_max: VIA_MAX_FRAGS, |
| fifo_size: 0, |
| }; |
| |
| static int snd_via686a_playback_fm_open(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| |
| if ((runtime->dma_area = snd_malloc_pci_pages_fallback(chip->pci, chip->dma_fm_size, &runtime->dma_addr, &runtime->dma_bytes)) == NULL) |
| return -ENOMEM; |
| chip->playback_fm.substream = substream; |
| runtime->hw = snd_via686a_playback_fm; |
| #if 0 |
| runtime->hw.rates = chip->ac97->rates_front_dac; |
| if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000)) |
| runtime->hw.min_rate = 48000; |
| #endif |
| if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
| return err; |
| return 0; |
| } |
| |
| static int snd_via686a_playback_fm_close(snd_pcm_substream_t * substream) |
| { |
| via686a_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| |
| chip->playback_fm.substream = NULL; |
| snd_free_pci_pages(chip->pci, runtime->dma_bytes, runtime->dma_area, runtime->dma_addr); |
| /* disable DAC power */ |
| snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0200, 0x0200); |
| return 0; |
| } |
| |
| static snd_pcm_ops_t snd_via686a_playback_fm_ops = { |
| open: snd_via686a_playback_fm_open, |
| close: snd_via686a_playback_fm_close, |
| ioctl: snd_pcm_lib_ioctl, |
| prepare: snd_via686a_playback_fm_prepare, |
| trigger: snd_via686a_playback_fm_trigger, |
| pointer: snd_via686a_playback_fm_pointer, |
| }; |
| |
| static void snd_via686a_pcm_fm_free(void *private_data) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, private_data, return); |
| chip->pcm_fm = NULL; |
| snd_pcm_lib_preallocate_pci_free_for_all(ensoniq->pci, pcm); |
| } |
| |
| static int __devinit snd_via686a_pcm_fm(via686a_t *chip, int device, snd_pcm_t ** rpcm) |
| { |
| snd_pcm_t *pcm; |
| int err; |
| |
| if (rpcm) |
| *rpcm = NULL; |
| err = snd_pcm_new(chip->card, "VIA 82C686A - FM DAC", device, 1, 0, &pcm); |
| if (err < 0) |
| return err; |
| |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686a_playback_fm_ops); |
| |
| pcm->private_data = chip; |
| pcm->private_free = snd_via686a_pcm_fm_free; |
| pcm->info_flags = 0; |
| strcpy(pcm->name, "VIA 82C686A - FM DAC"); |
| |
| snd_pcm_add_buffer_bytes_controls(pcm); |
| snd_pcm_lib_preallocate_pci_pages_for_all(chip->pci, pcm, 64*1024); |
| |
| chip->pcm_fm = pcm; |
| if (rpcm) |
| *rpcm = NULL; |
| return 0; |
| } |
| |
| #endif |
| |
| /* |
| * Mixer part |
| */ |
| |
| static void snd_via686a_codec_init(ac97_t *ac97) |
| { |
| // via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return); |
| |
| /* disable DAC & ADC power */ |
| snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x0300, 0x0300); |
| /* disable center DAC/surround DAC/LFE DAC/MIC ADC */ |
| snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, 0xe800, 0xe800); |
| } |
| |
| static void snd_via686a_mixer_free_ac97(ac97_t *ac97) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return); |
| chip->ac97 = NULL; |
| } |
| |
| static int __devinit snd_via686a_mixer(via686a_t *chip) |
| { |
| ac97_t ac97; |
| int err; |
| |
| memset(&ac97, 0, sizeof(ac97)); |
| ac97.write = snd_via686a_codec_write; |
| ac97.read = snd_via686a_codec_read; |
| ac97.init = snd_via686a_codec_init; |
| ac97.wait = snd_via686a_codec_wait; |
| ac97.private_data = chip; |
| ac97.private_free = snd_via686a_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_via686a_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_via686a_joystick_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
| { |
| via686a_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_via686a_joystick_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) |
| { |
| via686a_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_via686a_joystick_control __devinitdata = { |
| name: "Joystick", |
| iface: SNDRV_CTL_ELEM_IFACE_CARD, |
| info: snd_via686a_joystick_info, |
| get: snd_via686a_joystick_get, |
| put: snd_via686a_joystick_put, |
| }; |
| |
| /* |
| * |
| */ |
| |
| static int __devinit snd_via686a_chip_init(via686a_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? */ |
| /* disable all legacy ports */ |
| pci_write_config_byte(chip->pci, 0x42, 0); |
| #endif |
| |
| /* deassert ACLink reset, force SYNC */ |
| pci_write_config_byte(chip->pci, 0x41, 0xe0); |
| udelay(100); |
| 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); |
| |
| /* 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_via686a_codec_xread(chip)) & VIA_REG_AC97_BUSY) |
| snd_printk("AC'97 codec is not ready [0x%x]\n", val); |
| |
| /* and then reset codec.. */ |
| snd_via686a_codec_write(&ac97, AC97_RESET, 0x0000); |
| |
| /* check the primary codec */ |
| snd_via686a_codec_xwrite(chip, VIA_REG_AC97_READ | |
| VIA_REG_AC97_PRIMARY_VALID | |
| (VIA_REG_AC97_CODEC_ID_PRIMARY << VIA_REG_AC97_CODEC_ID_SHIFT)); |
| max_count = ((3 * HZ) / 4) + 1; |
| do { |
| if ((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_PRIMARY_VALID) |
| goto __ac97_ok1; |
| set_current_state(TASK_UNINTERRUPTIBLE); |
| schedule_timeout(1); |
| } while (--max_count > 0); |
| snd_printk("Primary AC'97 codec is not valid [0x%x]\n", val); |
| |
| __ac97_ok1: |
| #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */ |
| snd_via686a_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_via686a_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_via686a_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 0 |
| { |
| unsigned char cmdb; |
| |
| pci_read_config_byte(chip->pci, 0x40, &cmdb); |
| printk("PCI[0x40] = 0x%x\n", cmdb); |
| pci_read_config_byte(chip->pci, 0x42, &cmdb); |
| printk("PCI[0x42] = 0x%x\n", cmdb); |
| pci_read_config_byte(chip->pci, 0x43, &cmdb); |
| printk("PCI[0x43] = 0x%x\n", cmdb); |
| pci_read_config_byte(chip->pci, 0x44, &cmdb); |
| printk("PCI[0x44] = 0x%x\n", cmdb); |
| pci_read_config_byte(chip->pci, 0x48, &cmdb); |
| printk("PCI[0x48] = 0x%x\n", cmdb); |
| } |
| #endif |
| |
| /* 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_via686a_channel_reset(chip, &chip->playback); |
| snd_via686a_channel_reset(chip, &chip->capture); |
| snd_via686a_channel_reset(chip, &chip->playback_fm); |
| return 0; |
| } |
| |
| static int snd_via686a_free(via686a_t *chip) |
| { |
| if (chip->irq < 0) |
| goto __end_hw; |
| /* disable interrupts */ |
| snd_via686a_channel_reset(chip, &chip->playback); |
| snd_via686a_channel_reset(chip, &chip->capture); |
| snd_via686a_channel_reset(chip, &chip->playback_fm); |
| /* --- */ |
| __end_hw: |
| synchronize_irq(); |
| if (chip->tables) |
| snd_free_pci_pages(chip->pci, 3 * sizeof(unsigned int) * VIA_MAX_FRAGS * 2, chip->tables, chip->tables_addr); |
| if (chip->res_port) { |
| release_resource(chip->res_port); |
| kfree_nocheck(chip->res_port); |
| } |
| if (chip->irq >= 0) |
| free_irq(chip->irq, (void *)chip); |
| 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_via686a_dev_free(snd_device_t *device) |
| { |
| via686a_t *chip = snd_magic_cast(via686a_t, device->device_data, return -ENXIO); |
| return snd_via686a_free(chip); |
| } |
| |
| static int __devinit snd_via686a_create(snd_card_t * card, |
| struct pci_dev *pci, |
| unsigned int ac97_clock, |
| unsigned char old_legacy, |
| unsigned char old_legacy_cfg, |
| via686a_t ** r_via) |
| { |
| via686a_t *chip; |
| int err; |
| static snd_device_ops_t ops = { |
| dev_free: snd_via686a_dev_free, |
| }; |
| |
| if ((err = pci_enable_device(pci)) < 0) |
| return err; |
| |
| if ((chip = snd_magic_kcalloc(via686a_t, 0, GFP_KERNEL)) == NULL) |
| return -ENOMEM; |
| |
| chip->old_legacy = old_legacy; |
| chip->old_legacy_cfg = old_legacy_cfg; |
| |
| spin_lock_init(&chip->reg_lock); |
| spin_lock_init(&chip->ac97_lock); |
| chip->card = card; |
| chip->pci = pci; |
| chip->irq = -1; |
| chip->port = pci_resource_start(pci, 0); |
| if ((chip->res_port = request_region(chip->port, 256, "VIA686A")) == NULL) { |
| snd_via686a_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_via686a_interrupt, SA_INTERRUPT|SA_SHIRQ, "VIA686A", (void *)chip)) { |
| snd_via686a_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(); |
| |
| /* initialize offsets */ |
| chip->playback.reg_offset = VIA_REG_PLAYBACK_STATUS; |
| chip->capture.reg_offset = VIA_REG_CAPTURE_STATUS; |
| chip->playback_fm.reg_offset = VIA_REG_FM_STATUS; |
| |
| /* allocate buffer descriptor lists */ |
| /* the start of each lists must be aligned to 8 bytes */ |
| chip->tables = (unsigned int *)snd_malloc_pci_pages(pci, 3 * sizeof(unsigned int) * VIA_MAX_FRAGS * 2, &chip->tables_addr); |
| if (chip->tables == NULL) { |
| snd_via686a_free(chip); |
| return -ENOMEM; |
| } |
| /* tables must be aligned to 8 bytes, but the kernel pages |
| are much bigger, so we don't care */ |
| chip->playback.table = chip->tables; |
| chip->playback.table_addr = chip->tables_addr; |
| chip->capture.table = chip->playback.table + VIA_MAX_FRAGS * 2; |
| chip->capture.table_addr = chip->playback.table_addr + sizeof(unsigned int) * VIA_MAX_FRAGS * 2; |
| chip->playback_fm.table = chip->capture.table + VIA_MAX_FRAGS * 2; |
| chip->playback_fm.table_addr = chip->capture.table_addr + sizeof(unsigned int) * VIA_MAX_FRAGS * 2; |
| |
| if ((err = snd_via686a_chip_init(chip)) < 0) { |
| snd_via686a_free(chip); |
| return err; |
| } |
| |
| if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| snd_via686a_free(chip); |
| return err; |
| } |
| |
| *r_via = chip; |
| return 0; |
| } |
| |
| static int __devinit snd_via686a_probe(struct pci_dev *pci, |
| const struct pci_device_id *id) |
| { |
| static int dev = 0; |
| snd_card_t *card; |
| via686a_t *chip; |
| int pcm_dev = 0; |
| unsigned char legacy; |
| unsigned char legacy_cfg; |
| int rev_h = 0, 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; |
| |
| pci_read_config_byte(pci, 0x42, &legacy); |
| pci_read_config_byte(pci, 0x43, &legacy_cfg); |
| |
| if ((err = snd_via686a_create(card, |
| pci, |
| snd_ac97_clock[dev], |
| legacy, |
| legacy_cfg, |
| &chip)) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| |
| if (snd_via686a_mixer(chip) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| if (snd_via686a_pcm(chip, pcm_dev++, NULL) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| #if 0 |
| if (snd_via686a_pcm_fm(chip, pcm_dev++, NULL) < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| #endif |
| |
| 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_via686a_joystick_control, chip)); |
| if (err < 0) { |
| snd_card_free(card); |
| return err; |
| } |
| |
| strcpy(card->driver, "VIA686A"); |
| strcpy(card->shortname, "VIA 82C686A/B"); |
| |
| 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_via686a_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| pci_set_drvdata(pci, NULL); |
| } |
| |
| static struct pci_driver driver = { |
| name: "VIA 82C686A/B", |
| id_table: snd_via686a_ids, |
| probe: snd_via686a_probe, |
| remove: __devexit_p(snd_via686a_remove), |
| }; |
| |
| static int __init alsa_card_via686a_init(void) |
| { |
| int err; |
| |
| if ((err = pci_module_init(&driver)) < 0) { |
| #ifdef MODULE |
| printk(KERN_ERR "VIA 82C686A soundcard not found or device busy\n"); |
| #endif |
| return err; |
| } |
| return 0; |
| } |
| |
| static void __exit alsa_card_via686a_exit(void) |
| { |
| pci_unregister_driver(&driver); |
| } |
| |
| module_init(alsa_card_via686a_init) |
| module_exit(alsa_card_via686a_exit) |
| |
| #ifndef MODULE |
| |
| /* format is: snd-via686a=snd_enable,snd_index,snd_id, |
| snd_mpu_port,snd_ac97_clock */ |
| |
| static int __init alsa_card_via686a_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-via686a=", alsa_card_via686a_setup); |
| |
| #endif /* ifndef MODULE */ |