--- /dev/null
+/*
+ * ALSA driver for VIA VT82xx (South Bridge)
+ *
+ * VT82C686A/B/C, VT8233A/C, VT8235
+ *
+ * Copyright (c) 2000 Jaroslav Kysela <perex@perex.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:
+ *
+ * Dec. 19, 2002 Takashi Iwai <tiwai@suse.de>
+ * - use the DSX channels for the first pcm playback.
+ * (on VIA8233, 8233C and 8235 only)
+ * this will allow you play simultaneously up to 4 streams.
+ * multi-channel playback is assigned to the second device
+ * on these chips.
+ * - support the secondary capture (on VIA8233/C,8235)
+ * - SPDIF support
+ * the DSX3 channel can be used for SPDIF output.
+ * on VIA8233A, this channel is assigned to the second pcm
+ * playback.
+ * the card config of alsa-lib will assign the correct
+ * device for applications.
+ * - clean up the code, separate low-level initialization
+ * routines for each chipset.
+ *
+ * Sep. 26, 2005 Karsten Wiese <annabellesgarden@yahoo.de>
+ * - Optimize position calculation for the 823x chips.
+ */
+
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/info.h>
+#include <sound/tlv.h>
+#include <sound/ac97_codec.h>
+#include <sound/mpu401.h>
+#include <sound/initval.h>
+
+#if 0
+#define POINTER_DEBUG
+#endif
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("VIA VT82xx audio");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
+
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+#define SUPPORT_JOYSTICK 1
+#endif
+
+static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
+static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
+static long mpu_port;
+#ifdef SUPPORT_JOYSTICK
+static bool joystick;
+#endif
+static int ac97_clock = 48000;
+static char *ac97_quirk;
+static int dxs_support;
+static int dxs_init_volume = 31;
+static int nodelay;
+
+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(mpu_port, long, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
+#ifdef SUPPORT_JOYSTICK
+module_param(joystick, bool, 0444);
+MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
+#endif
+module_param(ac97_clock, int, 0444);
+MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
+module_param(ac97_quirk, charp, 0444);
+MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
+module_param(dxs_support, int, 0444);
+MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
+module_param(dxs_init_volume, int, 0644);
+MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
+module_param(nodelay, int, 0444);
+MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
+
+/* just for backward compatibility */
+static bool enable;
+module_param(enable, bool, 0444);
+
+
+/* revision numbers for via686 */
+#define VIA_REV_686_A 0x10
+#define VIA_REV_686_B 0x11
+#define VIA_REV_686_C 0x12
+#define VIA_REV_686_D 0x13
+#define VIA_REV_686_E 0x14
+#define VIA_REV_686_H 0x20
+
+/* 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 */
+#define VIA_REV_8237 0x60
+#define VIA_REV_8251 0x70
+
+/*
+ * 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 VIA8233_SHADOW_STAT_ACTIVE 0x08 /* 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 */
+/* via686 */
+#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)
+/* via8233 */
+#define VIA8233_REG_SGD_STAT_FLAG (1<<0)
+#define VIA8233_REG_SGD_STAT_EOL (1<<1)
+#define VIA8233_REG_SGD_STAT_STOP (1<<2)
+#define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
+#define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
+#define VIA8233_REG_SGD_CHAN_SDX 0
+#define VIA8233_REG_SGD_CHAN_MULTI 4
+#define VIA8233_REG_SGD_CHAN_REC 6
+#define VIA8233_REG_SGD_CHAN_REC1 7
+
+#define VIA_REG_GPI_STATUS 0x88
+#define VIA_REG_GPI_INTR 0x8c
+
+/* multi-channel and capture registers for via8233 */
+DEFINE_VIA_REGSET(MULTPLAY, 0x40);
+DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
+
+/* via8233-specific registers */
+#define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
+#define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
+#define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* 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_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
+#define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
+
+#define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
+
+#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
+
+/* 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|\
+ VIA_ACLINK_CTRL_VRA)
+#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_FM_NMI_CTRL 0x48
+#define VIA8233_VOLCHG_CTRL 0x48
+#define VIA8233_SPDIF_CTRL 0x49
+#define VIA8233_SPDIF_DX3 0x08
+#define VIA8233_SPDIF_SLOT_MASK 0x03
+#define VIA8233_SPDIF_SLOT_1011 0x00
+#define VIA8233_SPDIF_SLOT_34 0x01
+#define VIA8233_SPDIF_SLOT_78 0x02
+#define VIA8233_SPDIF_SLOT_69 0x03
+
+/*
+ */
+
+#define VIA_DXS_AUTO 0
+#define VIA_DXS_ENABLE 1
+#define VIA_DXS_DISABLE 2
+#define VIA_DXS_48K 3
+#define VIA_DXS_NO_VRA 4
+#define VIA_DXS_SRC 5
+
+
+/*
+ * pcm stream
+ */
+
+struct snd_via_sg_table {
+ unsigned int offset;
+ unsigned int size;
+} ;
+
+#define VIA_TABLE_SIZE 255
+#define VIA_MAX_BUFSIZE (1<<24)
+
+struct viadev {
+ unsigned int reg_offset;
+ unsigned long port;
+ int direction; /* playback = 0, capture = 1 */
+ struct snd_pcm_substream *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 fragsize;
+ unsigned int bufsize;
+ unsigned int bufsize2;
+ int hwptr_done; /* processed frame position in the buffer */
+ int in_interrupt;
+ int shadow_shift;
+};
+
+
+enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
+enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
+
+#define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
+
+struct via_rate_lock {
+ spinlock_t lock;
+ int rate;
+ int used;
+};
+
+struct via82xx {
+ int irq;
+
+ unsigned long port;
+ struct resource *mpu_res;
+ int chip_type;
+ unsigned char revision;
+
+ unsigned char old_legacy;
+ unsigned char old_legacy_cfg;
+#ifdef CONFIG_PM_SLEEP
+ unsigned char legacy_saved;
+ unsigned char legacy_cfg_saved;
+ unsigned char spdif_ctrl_saved;
+ unsigned char capture_src_saved[2];
+ unsigned int mpu_port_saved;
+#endif
+
+ unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
+ unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
+
+ unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
+
+ struct pci_dev *pci;
+ struct snd_card *card;
+
+ unsigned int num_devs;
+ unsigned int playback_devno, multi_devno, capture_devno;
+ struct viadev devs[VIA_MAX_DEVS];
+ struct via_rate_lock rates[2]; /* playback and capture */
+ unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
+ unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
+ unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
+ unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
+
+ struct snd_pcm *pcms[2];
+ struct snd_rawmidi *rmidi;
+ struct snd_kcontrol *dxs_controls[4];
+
+ struct snd_ac97_bus *ac97_bus;
+ struct snd_ac97 *ac97;
+ unsigned int ac97_clock;
+ unsigned int ac97_secondary; /* secondary AC'97 codec is present */
+
+ spinlock_t reg_lock;
+ struct snd_info_entry *proc_entry;
+
+#ifdef SUPPORT_JOYSTICK
+ struct gameport *gameport;
+#endif
+};
+
+static const struct pci_device_id snd_via82xx_ids[] = {
+ /* 0x1106, 0x3058 */
+ { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, }, /* 686A */
+ /* 0x1106, 0x3059 */
+ { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, }, /* VT8233 */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
+
+/*
+ */
+
+/*
+ * allocate and initialize the descriptor buffers
+ * periods = number of periods
+ * fragsize = period size in bytes
+ */
+static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
+ struct pci_dev *pci,
+ unsigned int periods, unsigned int fragsize)
+{
+ unsigned int i, idx, ofs, rest;
+ struct via82xx *chip = snd_pcm_substream_chip(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;
+ unsigned int addr;
+
+ if (idx >= VIA_TABLE_SIZE) {
+ dev_err(&pci->dev, "too much table size!\n");
+ return -EINVAL;
+ }
+ addr = snd_pcm_sgbuf_get_addr(substream, ofs);
+ ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
+ r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, 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 */
+ /*
+ dev_dbg(&pci->dev,
+ "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;
+ dev->fragsize = fragsize;
+ return 0;
+}
+
+
+static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *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(struct via82xx *chip)
+{
+ return inl(VIAREG(chip, AC97));
+}
+
+static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
+{
+ outl(val, VIAREG(chip, AC97));
+}
+
+static int snd_via82xx_codec_ready(struct via82xx *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;
+ }
+ dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
+ secondary, snd_via82xx_codec_xread(chip));
+ return -EIO;
+}
+
+static int snd_via82xx_codec_valid(struct via82xx *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(struct snd_ac97 *ac97)
+{
+ struct via82xx *chip = ac97->private_data;
+ int err;
+ err = snd_via82xx_codec_ready(chip, ac97->num);
+ /* here we need to wait fairly for long time.. */
+ if (!nodelay)
+ msleep(500);
+}
+
+static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
+ unsigned short reg,
+ unsigned short val)
+{
+ struct via82xx *chip = ac97->private_data;
+ 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;
+ snd_via82xx_codec_xwrite(chip, xval);
+ snd_via82xx_codec_ready(chip, ac97->num);
+}
+
+static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
+{
+ struct via82xx *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) {
+ dev_err(chip->card->dev,
+ "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(struct via82xx *chip, struct viadev *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;
+ viadev->hwptr_done = 0;
+}
+
+
+/*
+ * Interrupt handler
+ * Used for 686 and 8233A
+ */
+static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
+{
+ struct via82xx *chip = dev_id;
+ unsigned int status;
+ unsigned int i;
+
+ status = inl(VIAREG(chip, SGD_SHADOW));
+ if (! (status & chip->intr_mask)) {
+ if (chip->rmidi)
+ /* check mpu401 interrupt */
+ return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
+ return IRQ_NONE;
+ }
+
+ /* check status for each stream */
+ spin_lock(&chip->reg_lock);
+ for (i = 0; i < chip->num_devs; i++) {
+ struct viadev *viadev = &chip->devs[i];
+ unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
+ if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
+ continue;
+ if (viadev->substream && viadev->running) {
+ /*
+ * Update hwptr_done based on 'period elapsed'
+ * interrupts. We'll use it, when the chip returns 0
+ * for OFFSET_CURR_COUNT.
+ */
+ if (c_status & VIA_REG_STAT_EOL)
+ viadev->hwptr_done = 0;
+ else
+ viadev->hwptr_done += viadev->fragsize;
+ viadev->in_interrupt = c_status;
+ spin_unlock(&chip->reg_lock);
+ snd_pcm_period_elapsed(viadev->substream);
+ spin_lock(&chip->reg_lock);
+ viadev->in_interrupt = 0;
+ }
+ outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
+ }
+ spin_unlock(&chip->reg_lock);
+ return IRQ_HANDLED;
+}
+
+/*
+ * Interrupt handler
+ */
+static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
+{
+ struct via82xx *chip = dev_id;
+ unsigned int status;
+ unsigned int i;
+ int irqreturn = 0;
+
+ /* check status for each stream */
+ spin_lock(&chip->reg_lock);
+ status = inl(VIAREG(chip, SGD_SHADOW));
+
+ for (i = 0; i < chip->num_devs; i++) {
+ struct viadev *viadev = &chip->devs[i];
+ struct snd_pcm_substream *substream;
+ unsigned char c_status, shadow_status;
+
+ shadow_status = (status >> viadev->shadow_shift) &
+ (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
+ VIA_REG_STAT_FLAG);
+ c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
+ if (!c_status)
+ continue;
+
+ substream = viadev->substream;
+ if (substream && viadev->running) {
+ /*
+ * Update hwptr_done based on 'period elapsed'
+ * interrupts. We'll use it, when the chip returns 0
+ * for OFFSET_CURR_COUNT.
+ */
+ if (c_status & VIA_REG_STAT_EOL)
+ viadev->hwptr_done = 0;
+ else
+ viadev->hwptr_done += viadev->fragsize;
+ viadev->in_interrupt = c_status;
+ if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
+ viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
+ spin_unlock(&chip->reg_lock);
+
+ snd_pcm_period_elapsed(substream);
+
+ spin_lock(&chip->reg_lock);
+ viadev->in_interrupt = 0;
+ }
+ outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
+ irqreturn = 1;
+ }
+ spin_unlock(&chip->reg_lock);
+ return IRQ_RETVAL(irqreturn);
+}
+
+/*
+ * PCM callbacks
+ */
+
+/*
+ * trigger callback
+ */
+static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ unsigned char val;
+
+ if (chip->chip_type != TYPE_VIA686)
+ val = VIA_REG_CTRL_INT;
+ else
+ val = 0;
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ val |= VIA_REG_CTRL_START;
+ viadev->running = 1;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ 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(struct via82xx *chip,
+ struct viadev *viadev,
+ unsigned int idx,
+ unsigned int count)
+{
+ unsigned int size, base, res;
+
+ size = viadev->idx_table[idx].size;
+ base = viadev->idx_table[idx].offset;
+ res = base + size - count;
+ if (res >= viadev->bufsize)
+ res -= viadev->bufsize;
+
+ /* check the validity of the calculated position */
+ if (size < count) {
+ dev_dbg(chip->card->dev,
+ "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
+ (int)size, (int)count);
+ res = viadev->lastpos;
+ } else {
+ if (! count) {
+ /* Some mobos report count = 0 on the DMA boundary,
+ * i.e. count = size indeed.
+ * Let's check whether this step is above the expected size.
+ */
+ int delta = res - viadev->lastpos;
+ if (delta < 0)
+ delta += viadev->bufsize;
+ if ((unsigned int)delta > viadev->fragsize)
+ res = base;
+ }
+ if (check_invalid_pos(viadev, res)) {
+#ifdef POINTER_DEBUG
+ dev_dbg(chip->card->dev,
+ "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
+ /* count register returns full size when end of buffer is reached */
+ res = base + size;
+ if (check_invalid_pos(viadev, res)) {
+ dev_dbg(chip->card->dev,
+ "invalid via82xx_cur_ptr (2), using last valid pointer\n");
+ res = viadev->lastpos;
+ }
+ }
+ }
+ return res;
+}
+
+/*
+ * get the current pointer on via686
+ */
+static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ unsigned int idx, ptr, count, res;
+
+ if (snd_BUG_ON(!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(chip, viadev, idx, count);
+ viadev->lastpos = res; /* remember the last position */
+ spin_unlock(&chip->reg_lock);
+
+ return bytes_to_frames(substream->runtime, res);
+}
+
+/*
+ * get the current pointer on via823x
+ */
+static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ unsigned int idx, count, res;
+ int status;
+
+ if (snd_BUG_ON(!viadev->tbl_entries))
+ return 0;
+
+ spin_lock(&chip->reg_lock);
+ count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
+ status = viadev->in_interrupt;
+ if (!status)
+ status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
+
+ /* An apparent bug in the 8251 is worked around by sending a
+ * REG_CTRL_START. */
+ if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
+ snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
+
+ if (!(status & VIA_REG_STAT_ACTIVE)) {
+ res = 0;
+ goto unlock;
+ }
+ if (count & 0xffffff) {
+ idx = count >> 24;
+ if (idx >= viadev->tbl_entries) {
+#ifdef POINTER_DEBUG
+ dev_dbg(chip->card->dev,
+ "fail: invalid idx = %i/%i\n", idx,
+ viadev->tbl_entries);
+#endif
+ res = viadev->lastpos;
+ } else {
+ count &= 0xffffff;
+ res = calc_linear_pos(chip, viadev, idx, count);
+ }
+ } else {
+ res = viadev->hwptr_done;
+ if (!viadev->in_interrupt) {
+ if (status & VIA_REG_STAT_EOL) {
+ res = 0;
+ } else
+ if (status & VIA_REG_STAT_FLAG) {
+ res += viadev->fragsize;
+ }
+ }
+ }
+unlock:
+ viadev->lastpos = res;
+ 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(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = 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;
+
+ return 0;
+}
+
+/*
+ * hw_free callback:
+ * clean up the buffer description table and release the buffer
+ */
+static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = 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(struct via82xx *chip, struct viadev *viadev)
+{
+ snd_via82xx_codec_ready(chip, 0);
+ outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
+ udelay(20);
+ snd_via82xx_codec_ready(chip, 0);
+}
+
+/*
+ * prepare callback for playback and capture on via686
+ */
+static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
+ struct snd_pcm_runtime *runtime)
+{
+ 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 |
+ (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, VIADEV_REG(viadev, OFFSET_TYPE));
+}
+
+static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
+ snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
+ via686_setup_format(chip, viadev, runtime);
+ return 0;
+}
+
+static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
+ via686_setup_format(chip, viadev, runtime);
+ return 0;
+}
+
+/*
+ * lock the current rate
+ */
+static int via_lock_rate(struct via_rate_lock *rec, int rate)
+{
+ int changed = 0;
+
+ spin_lock_irq(&rec->lock);
+ if (rec->rate != rate) {
+ if (rec->rate && rec->used > 1) /* already set */
+ changed = -EINVAL;
+ else {
+ rec->rate = rate;
+ changed = 1;
+ }
+ }
+ spin_unlock_irq(&rec->lock);
+ return changed;
+}
+
+/*
+ * prepare callback for DSX playback on via823x
+ */
+static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
+ int rate_changed;
+ u32 rbits;
+
+ if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
+ return rate_changed;
+ if (rate_changed)
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
+ chip->no_vra ? 48000 : runtime->rate);
+ if (chip->spdif_on && viadev->reg_offset == 0x30)
+ snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
+
+ if (runtime->rate == 48000)
+ rbits = 0xfffff;
+ else
+ rbits = (0x100000 / 48000) * runtime->rate +
+ ((0x100000 % 48000) * runtime->rate) / 48000;
+ snd_BUG_ON(rbits & ~0xfffff);
+ snd_via82xx_channel_reset(chip, viadev);
+ snd_via82xx_set_table_ptr(chip, viadev);
+ outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
+ VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
+ outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
+ VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
+ outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
+ (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
+ rbits | /* rate */
+ 0xff000000, /* STOP index is never reached */
+ VIADEV_REG(viadev, OFFSET_STOP_IDX));
+ udelay(20);
+ snd_via82xx_codec_ready(chip, 0);
+ return 0;
+}
+
+/*
+ * prepare callback for multi-channel playback on via823x
+ */
+static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned int slots;
+ int fmt;
+
+ if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
+ return -EINVAL;
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
+ snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
+ snd_via82xx_channel_reset(chip, viadev);
+ snd_via82xx_set_table_ptr(chip, viadev);
+
+ fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
+ VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
+ fmt |= runtime->channels << 4;
+ outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
+#if 0
+ if (chip->revision == VIA_REV_8233A)
+ slots = 0;
+ else
+#endif
+ {
+ /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
+ /* corresponding to FL, FR, RL, RR, C, LFE ?? */
+ switch (runtime->channels) {
+ case 1: slots = (1<<0) | (1<<4); break;
+ case 2: slots = (1<<0) | (2<<4); break;
+ case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
+ case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
+ case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
+ case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
+ default: slots = 0; break;
+ }
+ }
+ /* STOP index is never reached */
+ outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
+ udelay(20);
+ snd_via82xx_codec_ready(chip, 0);
+ return 0;
+}
+
+/*
+ * prepare callback for capture on via823x
+ */
+static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
+ return -EINVAL;
+ snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
+ snd_via82xx_channel_reset(chip, viadev);
+ snd_via82xx_set_table_ptr(chip, viadev);
+ outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
+ 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 */
+ VIADEV_REG(viadev, OFFSET_STOP_IDX));
+ udelay(20);
+ snd_via82xx_codec_ready(chip, 0);
+ return 0;
+}
+
+
+/*
+ * pcm hardware definition, identical for both playback and capture
+ */
+static struct snd_pcm_hardware 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_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = VIA_MAX_BUFSIZE,
+ .period_bytes_min = 32,
+ .period_bytes_max = VIA_MAX_BUFSIZE / 2,
+ .periods_min = 2,
+ .periods_max = VIA_TABLE_SIZE / 2,
+ .fifo_size = 0,
+};
+
+
+/*
+ * open callback skeleton
+ */
+static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+ struct via_rate_lock *ratep;
+ bool use_src = false;
+
+ runtime->hw = snd_via82xx_hw;
+
+ /* set the hw rate condition */
+ ratep = &chip->rates[viadev->direction];
+ spin_lock_irq(&ratep->lock);
+ ratep->used++;
+ if (chip->spdif_on && viadev->reg_offset == 0x30) {
+ /* DXS#3 and spdif is on */
+ runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
+ snd_pcm_limit_hw_rates(runtime);
+ } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
+ /* fixed DXS playback rate */
+ runtime->hw.rates = SNDRV_PCM_RATE_48000;
+ runtime->hw.rate_min = runtime->hw.rate_max = 48000;
+ } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
+ /* use full SRC capabilities of DXS */
+ runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
+ SNDRV_PCM_RATE_8000_48000);
+ runtime->hw.rate_min = 8000;
+ runtime->hw.rate_max = 48000;
+ use_src = true;
+ } else if (! ratep->rate) {
+ int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
+ runtime->hw.rates = chip->ac97->rates[idx];
+ snd_pcm_limit_hw_rates(runtime);
+ } else {
+ /* a fixed rate */
+ runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
+ runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
+ }
+ spin_unlock_irq(&ratep->lock);
+
+ /* 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 (use_src) {
+ err = snd_pcm_hw_rule_noresample(runtime, 48000);
+ if (err < 0)
+ return err;
+ }
+
+ runtime->private_data = viadev;
+ viadev->substream = substream;
+
+ return 0;
+}
+
+
+/*
+ * open callback for playback on via686
+ */
+static int snd_via686_playback_open(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
+ int err;
+
+ if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
+ return err;
+ return 0;
+}
+
+/*
+ * open callback for playback on via823x DXS
+ */
+static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev;
+ unsigned int stream;
+ int err;
+
+ viadev = &chip->devs[chip->playback_devno + substream->number];
+ if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
+ return err;
+ stream = viadev->reg_offset / 0x10;
+ if (chip->dxs_controls[stream]) {
+ chip->playback_volume[stream][0] =
+ VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
+ chip->playback_volume[stream][1] =
+ VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
+ chip->dxs_controls[stream]->vd[0].access &=
+ ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
+ SNDRV_CTL_EVENT_MASK_INFO,
+ &chip->dxs_controls[stream]->id);
+ }
+ return 0;
+}
+
+/*
+ * open callback for playback on via823x multi-channel
+ */
+static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = &chip->devs[chip->multi_devno];
+ int err;
+ /* channels constraint for VIA8233A
+ * 3 and 5 channels are not supported
+ */
+ static unsigned int channels[] = {
+ 1, 2, 4, 6
+ };
+ static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
+ .count = ARRAY_SIZE(channels),
+ .list = channels,
+ .mask = 0,
+ };
+
+ if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
+ return err;
+ substream->runtime->hw.channels_max = 6;
+ if (chip->revision == VIA_REV_8233A)
+ snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &hw_constraints_channels);
+ return 0;
+}
+
+/*
+ * open callback for capture on via686 and via823x
+ */
+static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
+
+ return snd_via82xx_pcm_open(chip, viadev, substream);
+}
+
+/*
+ * close callback
+ */
+static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ struct via_rate_lock *ratep;
+
+ /* release the rate lock */
+ ratep = &chip->rates[viadev->direction];
+ spin_lock_irq(&ratep->lock);
+ ratep->used--;
+ if (! ratep->used)
+ ratep->rate = 0;
+ spin_unlock_irq(&ratep->lock);
+ if (! ratep->rate) {
+ if (! viadev->direction) {
+ snd_ac97_update_power(chip->ac97,
+ AC97_PCM_FRONT_DAC_RATE, 0);
+ snd_ac97_update_power(chip->ac97,
+ AC97_PCM_SURR_DAC_RATE, 0);
+ snd_ac97_update_power(chip->ac97,
+ AC97_PCM_LFE_DAC_RATE, 0);
+ } else
+ snd_ac97_update_power(chip->ac97,
+ AC97_PCM_LR_ADC_RATE, 0);
+ }
+ viadev->substream = NULL;
+ return 0;
+}
+
+static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
+{
+ struct via82xx *chip = snd_pcm_substream_chip(substream);
+ struct viadev *viadev = substream->runtime->private_data;
+ unsigned int stream;
+
+ stream = viadev->reg_offset / 0x10;
+ if (chip->dxs_controls[stream]) {
+ chip->dxs_controls[stream]->vd[0].access |=
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
+ &chip->dxs_controls[stream]->id);
+ }
+ return snd_via82xx_pcm_close(substream);
+}
+
+
+/* via686 playback callbacks */
+static struct snd_pcm_ops snd_via686_playback_ops = {
+ .open = snd_via686_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_via686_playback_prepare,
+ .trigger = snd_via82xx_pcm_trigger,
+ .pointer = snd_via686_pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+
+/* via686 capture callbacks */
+static struct snd_pcm_ops 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_via686_capture_prepare,
+ .trigger = snd_via82xx_pcm_trigger,
+ .pointer = snd_via686_pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+
+/* via823x DSX playback callbacks */
+static struct snd_pcm_ops snd_via8233_playback_ops = {
+ .open = snd_via8233_playback_open,
+ .close = snd_via8233_playback_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_via82xx_hw_params,
+ .hw_free = snd_via82xx_hw_free,
+ .prepare = snd_via8233_playback_prepare,
+ .trigger = snd_via82xx_pcm_trigger,
+ .pointer = snd_via8233_pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+
+/* via823x multi-channel playback callbacks */
+static struct snd_pcm_ops snd_via8233_multi_ops = {
+ .open = snd_via8233_multi_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_via8233_multi_prepare,
+ .trigger = snd_via82xx_pcm_trigger,
+ .pointer = snd_via8233_pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+
+/* via823x capture callbacks */
+static struct snd_pcm_ops snd_via8233_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_via8233_capture_prepare,
+ .trigger = snd_via82xx_pcm_trigger,
+ .pointer = snd_via8233_pcm_pointer,
+ .page = snd_pcm_sgbuf_ops_page,
+};
+
+
+static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
+ int shadow_pos, int direction)
+{
+ chip->devs[idx].reg_offset = reg_offset;
+ chip->devs[idx].shadow_shift = shadow_pos * 4;
+ chip->devs[idx].direction = direction;
+ chip->devs[idx].port = chip->port + reg_offset;
+}
+
+/*
+ * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
+ */
+static int snd_via8233_pcm_new(struct via82xx *chip)
+{
+ struct snd_pcm *pcm;
+ struct snd_pcm_chmap *chmap;
+ int i, err;
+
+ chip->playback_devno = 0; /* x 4 */
+ chip->multi_devno = 4; /* x 1 */
+ chip->capture_devno = 5; /* x 2 */
+ chip->num_devs = 7;
+ chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
+
+ /* PCM #0: 4 DSX playbacks and 1 capture */
+ err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
+ if (err < 0)
+ return err;
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
+ pcm->private_data = chip;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcms[0] = pcm;
+ /* set up playbacks */
+ for (i = 0; i < 4; i++)
+ init_viadev(chip, i, 0x10 * i, i, 0);
+ /* capture */
+ init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ snd_dma_pci_data(chip->pci),
+ 64*1024, VIA_MAX_BUFSIZE);
+
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_std_chmaps, 2, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+
+ /* PCM #1: multi-channel playback and 2nd capture */
+ err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
+ if (err < 0)
+ return err;
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
+ pcm->private_data = chip;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcms[1] = pcm;
+ /* set up playback */
+ init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
+ /* set up capture */
+ init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ snd_dma_pci_data(chip->pci),
+ 64*1024, VIA_MAX_BUFSIZE);
+
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, 6, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+ chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
+ return 0;
+}
+
+/*
+ * create pcm instances for VIA8233A
+ */
+static int snd_via8233a_pcm_new(struct via82xx *chip)
+{
+ struct snd_pcm *pcm;
+ struct snd_pcm_chmap *chmap;
+ int err;
+
+ chip->multi_devno = 0;
+ chip->playback_devno = 1;
+ chip->capture_devno = 2;
+ chip->num_devs = 3;
+ chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
+
+ /* PCM #0: multi-channel playback and capture */
+ 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_via8233_multi_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
+ pcm->private_data = chip;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcms[0] = pcm;
+ /* set up playback */
+ init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
+ /* capture */
+ init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ snd_dma_pci_data(chip->pci),
+ 64*1024, VIA_MAX_BUFSIZE);
+
+ err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ snd_pcm_alt_chmaps, 6, 0,
+ &chmap);
+ if (err < 0)
+ return err;
+ chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
+
+ /* SPDIF supported? */
+ if (! ac97_can_spdif(chip->ac97))
+ return 0;
+
+ /* PCM #1: DXS3 playback (for spdif) */
+ err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
+ if (err < 0)
+ return err;
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
+ pcm->private_data = chip;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcms[1] = pcm;
+ /* set up playback */
+ init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ snd_dma_pci_data(chip->pci),
+ 64*1024, VIA_MAX_BUFSIZE);
+ return 0;
+}
+
+/*
+ * create a pcm instance for via686a/b
+ */
+static int snd_via686_pcm_new(struct via82xx *chip)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ chip->playback_devno = 0;
+ chip->capture_devno = 1;
+ chip->num_devs = 2;
+ chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
+
+ 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->private_data = chip;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcms[0] = pcm;
+ init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
+ init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+ snd_dma_pci_data(chip->pci),
+ 64*1024, VIA_MAX_BUFSIZE);
+ return 0;
+}
+
+
+/*
+ * Mixer part
+ */
+
+static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ /* formerly they were "Line" and "Mic", but it looks like that they
+ * have nothing to do with the actual physical connections...
+ */
+ static const char * const texts[2] = {
+ "Input1", "Input2"
+ };
+ return snd_ctl_enum_info(uinfo, 1, 2, texts);
+}
+
+static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
+ ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
+ return 0;
+}
+
+static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
+ u8 val, oval;
+
+ spin_lock_irq(&chip->reg_lock);
+ oval = inb(port);
+ val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
+ if (ucontrol->value.enumerated.item[0])
+ val |= VIA_REG_CAPTURE_CHANNEL_MIC;
+ if (val != oval)
+ outb(val, port);
+ spin_unlock_irq(&chip->reg_lock);
+ return val != oval;
+}
+
+static struct snd_kcontrol_new snd_via8233_capture_source = {
+ .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,
+};
+
+#define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
+
+static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ u8 val;
+
+ pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
+ ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
+ return 0;
+}
+
+static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ u8 val, oval;
+
+ pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
+ val = oval & ~VIA8233_SPDIF_DX3;
+ if (ucontrol->value.integer.value[0])
+ val |= VIA8233_SPDIF_DX3;
+ /* save the spdif flag for rate filtering */
+ chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
+ if (val != oval) {
+ pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
+ return 1;
+ }
+ return 0;
+}
+
+static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
+ .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_via8233_dxs3_spdif_info,
+ .get = snd_via8233_dxs3_spdif_get,
+ .put = snd_via8233_dxs3_spdif_put,
+};
+
+static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
+ return 0;
+}
+
+static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = kcontrol->id.subdevice;
+
+ ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
+ ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
+ return 0;
+}
+
+static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
+ ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
+ return 0;
+}
+
+static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ unsigned int idx = kcontrol->id.subdevice;
+ unsigned long port = chip->port + 0x10 * idx;
+ unsigned char val;
+ int i, change = 0;
+
+ for (i = 0; i < 2; i++) {
+ val = ucontrol->value.integer.value[i];
+ if (val > VIA_DXS_MAX_VOLUME)
+ val = VIA_DXS_MAX_VOLUME;
+ val = VIA_DXS_MAX_VOLUME - val;
+ change |= val != chip->playback_volume[idx][i];
+ if (change) {
+ chip->playback_volume[idx][i] = val;
+ outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
+ }
+ }
+ return change;
+}
+
+static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct via82xx *chip = snd_kcontrol_chip(kcontrol);
+ unsigned int idx;
+ unsigned char val;
+ int i, change = 0;
+
+ for (i = 0; i < 2; i++) {
+ val = ucontrol->value.integer.value[i];
+ if (val > VIA_DXS_MAX_VOLUME)
+ val = VIA_DXS_MAX_VOLUME;
+ val = VIA_DXS_MAX_VOLUME - val;
+ if (val != chip->playback_volume_c[i]) {
+ change = 1;
+ chip->playback_volume_c[i] = val;
+ for (idx = 0; idx < 4; idx++) {
+ unsigned long port = chip->port + 0x10 * idx;
+ chip->playback_volume[idx][i] = val;
+ outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
+ }
+ }
+ }
+ return change;
+}
+
+static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
+
+static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
+ .name = "PCM Playback Volume",
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ),
+ .info = snd_via8233_dxs_volume_info,
+ .get = snd_via8233_pcmdxs_volume_get,
+ .put = snd_via8233_pcmdxs_volume_put,
+ .tlv = { .p = db_scale_dxs }
+};
+
+static struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .device = 0,
+ /* .subdevice set later */
+ .name = "PCM Playback Volume",
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+ SNDRV_CTL_ELEM_ACCESS_INACTIVE,
+ .info = snd_via8233_dxs_volume_info,
+ .get = snd_via8233_dxs_volume_get,
+ .put = snd_via8233_dxs_volume_put,
+ .tlv = { .p = db_scale_dxs }
+};
+
+/*
+ */
+
+static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
+{
+ struct via82xx *chip = bus->private_data;
+ chip->ac97_bus = NULL;
+}
+
+static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
+{
+ struct via82xx *chip = ac97->private_data;
+ chip->ac97 = NULL;
+}
+
+static const struct ac97_quirk ac97_quirks[] = {
+ {
+ .subvendor = 0x1106,
+ .subdevice = 0x4161,
+ .codec_id = 0x56494161, /* VT1612A */
+ .name = "Soltek SL-75DRV5",
+ .type = AC97_TUNE_NONE
+ },
+ { /* FIXME: which codec? */
+ .subvendor = 0x1106,
+ .subdevice = 0x4161,
+ .name = "ASRock K7VT2",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ {
+ .subvendor = 0x110a,
+ .subdevice = 0x0079,
+ .name = "Fujitsu Siemens D1289",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ {
+ .subvendor = 0x1019,
+ .subdevice = 0x0a81,
+ .name = "ECS K7VTA3",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ {
+ .subvendor = 0x1019,
+ .subdevice = 0x0a85,
+ .name = "ECS L7VMM2",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ {
+ .subvendor = 0x1019,
+ .subdevice = 0x1841,
+ .name = "ECS K7VTA3",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ {
+ .subvendor = 0x1849,
+ .subdevice = 0x3059,
+ .name = "ASRock K7VM2",
+ .type = AC97_TUNE_HP_ONLY /* VT1616 */
+ },
+ {
+ .subvendor = 0x14cd,
+ .subdevice = 0x7002,
+ .name = "Unknown",
+ .type = AC97_TUNE_ALC_JACK
+ },
+ {
+ .subvendor = 0x1071,
+ .subdevice = 0x8590,
+ .name = "Mitac Mobo",
+ .type = AC97_TUNE_ALC_JACK
+ },
+ {
+ .subvendor = 0x161f,
+ .subdevice = 0x202b,
+ .name = "Arima Notebook",
+ .type = AC97_TUNE_HP_ONLY,
+ },
+ {
+ .subvendor = 0x161f,
+ .subdevice = 0x2032,
+ .name = "Targa Traveller 811",
+ .type = AC97_TUNE_HP_ONLY,
+ },
+ {
+ .subvendor = 0x161f,
+ .subdevice = 0x2032,
+ .name = "m680x",
+ .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
+ },
+ {
+ .subvendor = 0x1297,
+ .subdevice = 0xa232,
+ .name = "Shuttle AK32VN",
+ .type = AC97_TUNE_HP_ONLY
+ },
+ { } /* terminator */
+};
+
+static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
+{
+ struct snd_ac97_template ac97;
+ int err;
+ static struct snd_ac97_bus_ops 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_MODEM | AC97_SCAP_POWER_SAVE;
+ if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
+ return err;
+
+ snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
+
+ if (chip->chip_type != TYPE_VIA686) {
+ /* use slot 10/11 */
+ snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
+ }
+
+ return 0;
+}
+
+#ifdef SUPPORT_JOYSTICK
+#define JOYSTICK_ADDR 0x200
+static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
+{
+ struct gameport *gp;
+ struct resource *r;
+
+ if (!joystick)
+ return -ENODEV;
+
+ r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
+ if (!r) {
+ dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
+ JOYSTICK_ADDR);
+ return -EBUSY;
+ }
+
+ chip->gameport = gp = gameport_allocate_port();
+ if (!gp) {
+ dev_err(chip->card->dev,
+ "cannot allocate memory for gameport\n");
+ release_and_free_resource(r);
+ return -ENOMEM;
+ }
+
+ gameport_set_name(gp, "VIA686 Gameport");
+ gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
+ gameport_set_dev_parent(gp, &chip->pci->dev);
+ gp->io = JOYSTICK_ADDR;
+ gameport_set_port_data(gp, r);
+
+ /* Enable legacy joystick port */
+ *legacy |= VIA_FUNC_ENABLE_GAME;
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
+
+ gameport_register_port(chip->gameport);
+
+ return 0;
+}
+
+static void snd_via686_free_gameport(struct via82xx *chip)
+{
+ if (chip->gameport) {
+ struct resource *r = gameport_get_port_data(chip->gameport);
+
+ gameport_unregister_port(chip->gameport);
+ chip->gameport = NULL;
+ release_and_free_resource(r);
+ }
+}
+#else
+static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
+{
+ return -ENOSYS;
+}
+static inline void snd_via686_free_gameport(struct via82xx *chip) { }
+#endif
+
+
+/*
+ *
+ */
+
+static int snd_via8233_init_misc(struct via82xx *chip)
+{
+ int i, err, caps;
+ unsigned char val;
+
+ caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
+ for (i = 0; i < caps; i++) {
+ snd_via8233_capture_source.index = i;
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
+ if (err < 0)
+ return err;
+ }
+ if (ac97_can_spdif(chip->ac97)) {
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
+ if (err < 0)
+ return err;
+ }
+ if (chip->chip_type != TYPE_VIA8233A) {
+ /* when no h/w PCM volume control is found, use DXS volume control
+ * as the PCM vol control
+ */
+ struct snd_ctl_elem_id sid;
+ memset(&sid, 0, sizeof(sid));
+ strcpy(sid.name, "PCM Playback Volume");
+ sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ if (! snd_ctl_find_id(chip->card, &sid)) {
+ dev_info(chip->card->dev,
+ "Using DXS as PCM Playback\n");
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
+ if (err < 0)
+ return err;
+ }
+ else /* Using DXS when PCM emulation is enabled is really weird */
+ {
+ for (i = 0; i < 4; ++i) {
+ struct snd_kcontrol *kctl;
+
+ kctl = snd_ctl_new1(
+ &snd_via8233_dxs_volume_control, chip);
+ if (!kctl)
+ return -ENOMEM;
+ kctl->id.subdevice = i;
+ err = snd_ctl_add(chip->card, kctl);
+ if (err < 0)
+ return err;
+ chip->dxs_controls[i] = kctl;
+ }
+ }
+ }
+ /* select spdif data slot 10/11 */
+ pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
+ val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
+ val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
+ pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
+
+ return 0;
+}
+
+static int snd_via686_init_misc(struct via82xx *chip)
+{
+ unsigned char legacy, legacy_cfg;
+ int rev_h = 0;
+
+ legacy = chip->old_legacy;
+ legacy_cfg = chip->old_legacy_cfg;
+ legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
+ legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
+ if (chip->revision >= VIA_REV_686_H) {
+ rev_h = 1;
+ if (mpu_port >= 0x200) { /* force MIDI */
+ mpu_port &= 0xfffc;
+ pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
+#ifdef CONFIG_PM_SLEEP
+ chip->mpu_port_saved = mpu_port;
+#endif
+ } else {
+ mpu_port = pci_resource_start(chip->pci, 2);
+ }
+ } else {
+ switch (mpu_port) { /* force MIDI */
+ case 0x300:
+ case 0x310:
+ case 0x320:
+ case 0x330:
+ legacy_cfg &= ~(3 << 2);
+ legacy_cfg |= (mpu_port & 0x0030) >> 2;
+ break;
+ default: /* no, use BIOS settings */
+ if (legacy & VIA_FUNC_ENABLE_MIDI)
+ mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
+ break;
+ }
+ }
+ if (mpu_port >= 0x200 &&
+ (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
+ != NULL) {
+ if (rev_h)
+ legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
+ legacy |= VIA_FUNC_ENABLE_MIDI;
+ } else {
+ if (rev_h)
+ legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
+ legacy &= ~VIA_FUNC_ENABLE_MIDI;
+ mpu_port = 0;
+ }
+
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
+ pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
+ if (chip->mpu_res) {
+ if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
+ mpu_port, MPU401_INFO_INTEGRATED |
+ MPU401_INFO_IRQ_HOOK, -1,
+ &chip->rmidi) < 0) {
+ dev_warn(chip->card->dev,
+ "unable to initialize MPU-401 at 0x%lx, skipping\n",
+ mpu_port);
+ legacy &= ~VIA_FUNC_ENABLE_MIDI;
+ } else {
+ legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
+ }
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
+ }
+
+ snd_via686_create_gameport(chip, &legacy);
+
+#ifdef CONFIG_PM_SLEEP
+ chip->legacy_saved = legacy;
+ chip->legacy_cfg_saved = legacy_cfg;
+#endif
+
+ return 0;
+}
+
+
+/*
+ * proc interface
+ */
+static void snd_via82xx_proc_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct via82xx *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 snd_via82xx_proc_init(struct via82xx *chip)
+{
+ struct snd_info_entry *entry;
+
+ if (! snd_card_proc_new(chip->card, "via82xx", &entry))
+ snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
+}
+
+/*
+ *
+ */
+
+static int snd_via82xx_chip_init(struct via82xx *chip)
+{
+ unsigned int val;
+ unsigned long end_time;
+ unsigned char pval;
+
+#if 0 /* broken on K7M? */
+ if (chip->chip_type == TYPE_VIA686)
+ /* disable all legacy ports */
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
+#endif
+ 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 */
+ /* note - FM data out has trouble with non VRA codecs !! */
+ pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
+ udelay(100);
+ }
+
+ /* Make sure VRA is enabled, in case we didn't do a
+ * complete codec reset, above */
+ 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 */
+ /* note - FM data out has trouble with non VRA codecs !! */
+ 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;
+ schedule_timeout_uninterruptible(1);
+ } while (time_before(jiffies, end_time));
+
+ if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
+ dev_err(chip->card->dev,
+ "AC'97 codec is not ready [0x%x]\n", val);
+
+#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));
+ 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;
+ }
+ schedule_timeout_uninterruptible(1);
+ } while (time_before(jiffies, end_time));
+ /* 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, VIA_FM_NMI_CTRL, 0);
+ /* disable all GPI interrupts */
+ outl(0, VIAREG(chip, GPI_INTR));
+ }
+
+ if (chip->chip_type != TYPE_VIA686) {
+ /* Workaround for Award BIOS bug:
+ * DXS channels don't work properly with VRA if MC97 is disabled.
+ */
+ struct pci_dev *pci;
+ pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
+ if (pci) {
+ unsigned char data;
+ pci_read_config_byte(pci, 0x44, &data);
+ pci_write_config_byte(pci, 0x44, data | 0x40);
+ pci_dev_put(pci);
+ }
+ }
+
+ if (chip->chip_type != TYPE_VIA8233A) {
+ int i, idx;
+ for (idx = 0; idx < 4; idx++) {
+ unsigned long port = chip->port + 0x10 * idx;
+ for (i = 0; i < 2; i++) {
+ chip->playback_volume[idx][i]=chip->playback_volume_c[i];
+ outb(chip->playback_volume_c[i],
+ port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
+ }
+ }
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+/*
+ * power management
+ */
+static int snd_via82xx_suspend(struct device *dev)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct via82xx *chip = card->private_data;
+ int i;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ for (i = 0; i < 2; 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);
+
+ /* save misc values */
+ if (chip->chip_type != TYPE_VIA686) {
+ pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
+ chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
+ chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
+ }
+
+ return 0;
+}
+
+static int snd_via82xx_resume(struct device *dev)
+{
+ struct snd_card *card = dev_get_drvdata(dev);
+ struct via82xx *chip = card->private_data;
+ int i;
+
+ snd_via82xx_chip_init(chip);
+
+ if (chip->chip_type == TYPE_VIA686) {
+ if (chip->mpu_port_saved)
+ pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
+ pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
+ } else {
+ pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
+ outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
+ outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
+ }
+
+ snd_ac97_resume(chip->ac97);
+
+ for (i = 0; i < chip->num_devs; i++)
+ snd_via82xx_channel_reset(chip, &chip->devs[i]);
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
+#define SND_VIA82XX_PM_OPS &snd_via82xx_pm
+#else
+#define SND_VIA82XX_PM_OPS NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static int snd_via82xx_free(struct via82xx *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]);
+
+ if (chip->irq >= 0)
+ free_irq(chip->irq, chip);
+ __end_hw:
+ release_and_free_resource(chip->mpu_res);
+ pci_release_regions(chip->pci);
+
+ if (chip->chip_type == TYPE_VIA686) {
+ snd_via686_free_gameport(chip);
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
+ pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
+ }
+ pci_disable_device(chip->pci);
+ kfree(chip);
+ return 0;
+}
+
+static int snd_via82xx_dev_free(struct snd_device *device)
+{
+ struct via82xx *chip = device->device_data;
+ return snd_via82xx_free(chip);
+}
+
+static int snd_via82xx_create(struct snd_card *card,
+ struct pci_dev *pci,
+ int chip_type,
+ int revision,
+ unsigned int ac97_clock,
+ struct via82xx **r_via)
+{
+ struct via82xx *chip;
+ int err;
+ static struct snd_device_ops 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;
+ }
+
+ chip->chip_type = chip_type;
+ chip->revision = revision;
+
+ spin_lock_init(&chip->reg_lock);
+ spin_lock_init(&chip->rates[0].lock);
+ spin_lock_init(&chip->rates[1].lock);
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+
+ pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
+ pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
+ pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
+ chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
+
+ 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,
+ chip_type == TYPE_VIA8233 ?
+ snd_via8233_interrupt : snd_via686_interrupt,
+ IRQF_SHARED,
+ KBUILD_MODNAME, chip)) {
+ dev_err(card->dev, "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);
+
+ *r_via = chip;
+ return 0;
+}
+
+struct via823x_info {
+ int revision;
+ char *name;
+ int type;
+};
+static struct via823x_info via823x_cards[] = {
+ { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
+ { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
+ { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
+ { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
+ { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
+ { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
+ { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
+};
+
+/*
+ * auto detection of DXS channel supports.
+ */
+
+static struct snd_pci_quirk dxs_whitelist[] = {
+ SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
+ SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
+ SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
+ SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
+ SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
+ SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
+ SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
+ SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
+ SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
+ { } /* terminator */
+};
+
+static int check_dxs_list(struct pci_dev *pci, int revision)
+{
+ const struct snd_pci_quirk *w;
+
+ w = snd_pci_quirk_lookup(pci, dxs_whitelist);
+ if (w) {
+ dev_dbg(&pci->dev, "DXS white list for %s found\n",
+ snd_pci_quirk_name(w));
+ return w->value;
+ }
+
+ /* for newer revision, default to DXS_SRC */
+ if (revision >= VIA_REV_8235)
+ return VIA_DXS_SRC;
+
+ /*
+ * not detected, try 48k rate only to be sure.
+ */
+ dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
+ dev_info(&pci->dev, " Please try dxs_support=5 option\n");
+ dev_info(&pci->dev, " and report if it works on your machine.\n");
+ dev_info(&pci->dev, " For more details, read ALSA-Configuration.txt.\n");
+ return VIA_DXS_48K;
+};
+
+static int snd_via82xx_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ struct snd_card *card;
+ struct via82xx *chip;
+ int chip_type = 0, card_type;
+ unsigned int i;
+ int err;
+
+ err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
+ if (err < 0)
+ return err;
+
+ card_type = pci_id->driver_data;
+ switch (card_type) {
+ case TYPE_CARD_VIA686:
+ strcpy(card->driver, "VIA686A");
+ sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
+ chip_type = TYPE_VIA686;
+ break;
+ case TYPE_CARD_VIA8233:
+ chip_type = TYPE_VIA8233;
+ sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
+ for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
+ if (pci->revision == via823x_cards[i].revision) {
+ chip_type = via823x_cards[i].type;
+ strcpy(card->shortname, via823x_cards[i].name);
+ break;
+ }
+ }
+ if (chip_type != TYPE_VIA8233A) {
+ if (dxs_support == VIA_DXS_AUTO)
+ dxs_support = check_dxs_list(pci, pci->revision);
+ /* force to use VIA8233 or 8233A model according to
+ * dxs_support module option
+ */
+ if (dxs_support == VIA_DXS_DISABLE)
+ chip_type = TYPE_VIA8233A;
+ else
+ chip_type = TYPE_VIA8233;
+ }
+ if (chip_type == TYPE_VIA8233A)
+ strcpy(card->driver, "VIA8233A");
+ else if (pci->revision >= VIA_REV_8237)
+ strcpy(card->driver, "VIA8237"); /* no slog assignment */
+ else
+ strcpy(card->driver, "VIA8233");
+ break;
+ default:
+ dev_err(card->dev, "invalid card type %d\n", card_type);
+ err = -EINVAL;
+ goto __error;
+ }
+
+ if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
+ ac97_clock, &chip)) < 0)
+ goto __error;
+ card->private_data = chip;
+ if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
+ goto __error;
+
+ if (chip_type == TYPE_VIA686) {
+ if ((err = snd_via686_pcm_new(chip)) < 0 ||
+ (err = snd_via686_init_misc(chip)) < 0)
+ goto __error;
+ } else {
+ if (chip_type == TYPE_VIA8233A) {
+ if ((err = snd_via8233a_pcm_new(chip)) < 0)
+ goto __error;
+ // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
+ } else {
+ if ((err = snd_via8233_pcm_new(chip)) < 0)
+ goto __error;
+ if (dxs_support == VIA_DXS_48K)
+ chip->dxs_fixed = 1;
+ else if (dxs_support == VIA_DXS_NO_VRA)
+ chip->no_vra = 1;
+ else if (dxs_support == VIA_DXS_SRC) {
+ chip->no_vra = 1;
+ chip->dxs_src = 1;
+ }
+ }
+ if ((err = snd_via8233_init_misc(chip)) < 0)
+ goto __error;
+ }
+
+ /* disable interrupts */
+ for (i = 0; i < chip->num_devs; i++)
+ snd_via82xx_channel_reset(chip, &chip->devs[i]);
+
+ snprintf(card->longname, sizeof(card->longname),
+ "%s with %s at %#lx, irq %d", card->shortname,
+ snd_ac97_get_short_name(chip->ac97), 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 snd_via82xx_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+}
+
+static struct pci_driver via82xx_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_via82xx_ids,
+ .probe = snd_via82xx_probe,
+ .remove = snd_via82xx_remove,
+ .driver = {
+ .pm = SND_VIA82XX_PM_OPS,
+ },
+};
+
+module_pci_driver(via82xx_driver);
Code Review / kvmfornfv.git / blobdiff