11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ALSA modem driver for VIA VT82xx (South Bridge) 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * VT82C686A/B/C, VT8233A/C, VT8235 51da177e4SLinus Torvalds * 6c1017a4cSJaroslav Kysela * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz> 71da177e4SLinus Torvalds * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com> 81da177e4SLinus Torvalds * 2002 Takashi Iwai <tiwai@suse.de> 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 131da177e4SLinus Torvalds * (at your option) any later version. 141da177e4SLinus Torvalds * 151da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, 161da177e4SLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 171da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 181da177e4SLinus Torvalds * GNU General Public License for more details. 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License 211da177e4SLinus Torvalds * along with this program; if not, write to the Free Software 221da177e4SLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds */ 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds /* 271da177e4SLinus Torvalds * Changes: 281da177e4SLinus Torvalds * 29f01cc521SSasha Khapyorsky * Sep. 2, 2004 Sasha Khapyorsky <sashak@alsa-project.org> 301da177e4SLinus Torvalds * Modified from original audio driver 'via82xx.c' to support AC97 311da177e4SLinus Torvalds * modems. 321da177e4SLinus Torvalds */ 331da177e4SLinus Torvalds 341da177e4SLinus Torvalds #include <asm/io.h> 351da177e4SLinus Torvalds #include <linux/delay.h> 361da177e4SLinus Torvalds #include <linux/interrupt.h> 371da177e4SLinus Torvalds #include <linux/init.h> 381da177e4SLinus Torvalds #include <linux/pci.h> 391da177e4SLinus Torvalds #include <linux/slab.h> 401da177e4SLinus Torvalds #include <linux/moduleparam.h> 411da177e4SLinus Torvalds #include <sound/core.h> 421da177e4SLinus Torvalds #include <sound/pcm.h> 431da177e4SLinus Torvalds #include <sound/pcm_params.h> 441da177e4SLinus Torvalds #include <sound/info.h> 451da177e4SLinus Torvalds #include <sound/ac97_codec.h> 461da177e4SLinus Torvalds #include <sound/initval.h> 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds #if 0 491da177e4SLinus Torvalds #define POINTER_DEBUG 501da177e4SLinus Torvalds #endif 511da177e4SLinus Torvalds 52c1017a4cSJaroslav Kysela MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 531da177e4SLinus Torvalds MODULE_DESCRIPTION("VIA VT82xx modem"); 541da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 551da177e4SLinus Torvalds MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C modem,pci}}"); 561da177e4SLinus Torvalds 57b7fe4622SClemens Ladisch static int index = -2; /* Exclude the first card */ 58b7fe4622SClemens Ladisch static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ 59b7fe4622SClemens Ladisch static int ac97_clock = 48000; 601da177e4SLinus Torvalds 61b7fe4622SClemens Ladisch module_param(index, int, 0444); 621da177e4SLinus Torvalds MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge."); 63b7fe4622SClemens Ladisch module_param(id, charp, 0444); 641da177e4SLinus Torvalds MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge."); 65b7fe4622SClemens Ladisch module_param(ac97_clock, int, 0444); 661da177e4SLinus Torvalds MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); 671da177e4SLinus Torvalds 682b3e584bSTakashi Iwai /* just for backward compatibility */ 692b3e584bSTakashi Iwai static int enable; 70698444f3STakashi Iwai module_param(enable, bool, 0444); 712b3e584bSTakashi Iwai 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds /* 741da177e4SLinus Torvalds * Direct registers 751da177e4SLinus Torvalds */ 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds #define VIAREG(via, x) ((via)->port + VIA_REG_##x) 781da177e4SLinus Torvalds #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x) 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds /* common offsets */ 811da177e4SLinus Torvalds #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */ 821da177e4SLinus Torvalds #define VIA_REG_STAT_ACTIVE 0x80 /* RO */ 831da177e4SLinus Torvalds #define VIA_REG_STAT_PAUSED 0x40 /* RO */ 841da177e4SLinus Torvalds #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */ 851da177e4SLinus Torvalds #define VIA_REG_STAT_STOPPED 0x04 /* RWC */ 861da177e4SLinus Torvalds #define VIA_REG_STAT_EOL 0x02 /* RWC */ 871da177e4SLinus Torvalds #define VIA_REG_STAT_FLAG 0x01 /* RWC */ 881da177e4SLinus Torvalds #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */ 891da177e4SLinus Torvalds #define VIA_REG_CTRL_START 0x80 /* WO */ 901da177e4SLinus Torvalds #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */ 911da177e4SLinus Torvalds #define VIA_REG_CTRL_AUTOSTART 0x20 921da177e4SLinus Torvalds #define VIA_REG_CTRL_PAUSE 0x08 /* RW */ 931da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_STOP 0x04 941da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_EOL 0x02 951da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_FLAG 0x01 961da177e4SLinus Torvalds #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */ 971da177e4SLinus Torvalds #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART) 981da177e4SLinus Torvalds #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */ 991da177e4SLinus Torvalds #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */ 1001da177e4SLinus Torvalds #define VIA_REG_TYPE_16BIT 0x20 /* RW */ 1011da177e4SLinus Torvalds #define VIA_REG_TYPE_STEREO 0x10 /* RW */ 1021da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LLINE 0x00 1031da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LSAMPLE 0x04 1041da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LESSONE 0x08 1051da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_MASK 0x0c 1061da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_EOL 0x02 1071da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_FLAG 0x01 1081da177e4SLinus Torvalds #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */ 1091da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */ 1101da177e4SLinus Torvalds #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */ 1111da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */ 1121da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */ 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds #define DEFINE_VIA_REGSET(name,val) \ 1151da177e4SLinus Torvalds enum {\ 1161da177e4SLinus Torvalds VIA_REG_##name##_STATUS = (val),\ 1171da177e4SLinus Torvalds VIA_REG_##name##_CONTROL = (val) + 0x01,\ 1181da177e4SLinus Torvalds VIA_REG_##name##_TYPE = (val) + 0x02,\ 1191da177e4SLinus Torvalds VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\ 1201da177e4SLinus Torvalds VIA_REG_##name##_CURR_PTR = (val) + 0x04,\ 1211da177e4SLinus Torvalds VIA_REG_##name##_STOP_IDX = (val) + 0x08,\ 1221da177e4SLinus Torvalds VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\ 1231da177e4SLinus Torvalds } 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds /* modem block */ 1261da177e4SLinus Torvalds DEFINE_VIA_REGSET(MO, 0x40); 1271da177e4SLinus Torvalds DEFINE_VIA_REGSET(MI, 0x50); 1281da177e4SLinus Torvalds 1291da177e4SLinus Torvalds /* AC'97 */ 1301da177e4SLinus Torvalds #define VIA_REG_AC97 0x80 /* dword */ 1311da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_MASK (3<<30) 1321da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_SHIFT 30 1331da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00 1341da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01 1351da177e4SLinus Torvalds #define VIA_REG_AC97_SECONDARY_VALID (1<<27) 1361da177e4SLinus Torvalds #define VIA_REG_AC97_PRIMARY_VALID (1<<25) 1371da177e4SLinus Torvalds #define VIA_REG_AC97_BUSY (1<<24) 1381da177e4SLinus Torvalds #define VIA_REG_AC97_READ (1<<23) 1391da177e4SLinus Torvalds #define VIA_REG_AC97_CMD_SHIFT 16 1401da177e4SLinus Torvalds #define VIA_REG_AC97_CMD_MASK 0x7e 1411da177e4SLinus Torvalds #define VIA_REG_AC97_DATA_SHIFT 0 1421da177e4SLinus Torvalds #define VIA_REG_AC97_DATA_MASK 0xffff 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds #define VIA_REG_SGD_SHADOW 0x84 /* dword */ 1451da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_FLAG (1<<0) 1461da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_FLAG (1<<1) 1471da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_FLAG (1<<2) 1481da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_EOL (1<<4) 1491da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_EOL (1<<5) 1501da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_EOL (1<<6) 1511da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_STOP (1<<8) 1521da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_STOP (1<<9) 1531da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_STOP (1<<10) 1541da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12) 1551da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13) 1561da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14) 1571da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_FLAG (1<<16) 1581da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_FLAG (1<<17) 1591da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_EOL (1<<20) 1601da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_EOL (1<<21) 1611da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_STOP (1<<24) 1621da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_STOP (1<<25) 1631da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_ACTIVE (1<<28) 1641da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_ACTIVE (1<<29) 1651da177e4SLinus Torvalds 1661da177e4SLinus Torvalds #define VIA_REG_GPI_STATUS 0x88 1671da177e4SLinus Torvalds #define VIA_REG_GPI_INTR 0x8c 1681da177e4SLinus Torvalds 1691da177e4SLinus Torvalds #define VIA_TBL_BIT_FLAG 0x40000000 1701da177e4SLinus Torvalds #define VIA_TBL_BIT_EOL 0x80000000 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds /* pci space */ 1731da177e4SLinus Torvalds #define VIA_ACLINK_STAT 0x40 1741da177e4SLinus Torvalds #define VIA_ACLINK_C11_READY 0x20 1751da177e4SLinus Torvalds #define VIA_ACLINK_C10_READY 0x10 1761da177e4SLinus Torvalds #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */ 1771da177e4SLinus Torvalds #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */ 1781da177e4SLinus Torvalds #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */ 1791da177e4SLinus Torvalds #define VIA_ACLINK_CTRL 0x41 1801da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */ 1811da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */ 1821da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */ 1831da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */ 1841da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */ 1851da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */ 1861da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */ 1871da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */ 1881da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\ 1891da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET|\ 1901da177e4SLinus Torvalds VIA_ACLINK_CTRL_PCM) 1911da177e4SLinus Torvalds #define VIA_FUNC_ENABLE 0x42 1921da177e4SLinus Torvalds #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */ 1931da177e4SLinus Torvalds #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */ 1941da177e4SLinus Torvalds #define VIA_FUNC_RX2C_WRITE 0x20 1951da177e4SLinus Torvalds #define VIA_FUNC_SB_FIFO_EMPTY 0x10 1961da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_GAME 0x08 1971da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_FM 0x04 1981da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_MIDI 0x02 1991da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_SB 0x01 2001da177e4SLinus Torvalds #define VIA_PNP_CONTROL 0x43 2011da177e4SLinus Torvalds #define VIA_MC97_CTRL 0x44 2021da177e4SLinus Torvalds #define VIA_MC97_CTRL_ENABLE 0x80 2031da177e4SLinus Torvalds #define VIA_MC97_CTRL_SECONDARY 0x40 2041da177e4SLinus Torvalds #define VIA_MC97_CTRL_INIT (VIA_MC97_CTRL_ENABLE|\ 2051da177e4SLinus Torvalds VIA_MC97_CTRL_SECONDARY) 2061da177e4SLinus Torvalds 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds /* 2091da177e4SLinus Torvalds * pcm stream 2101da177e4SLinus Torvalds */ 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds struct snd_via_sg_table { 2131da177e4SLinus Torvalds unsigned int offset; 2141da177e4SLinus Torvalds unsigned int size; 2151da177e4SLinus Torvalds } ; 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds #define VIA_TABLE_SIZE 255 2181da177e4SLinus Torvalds 219e437e3d7STakashi Iwai struct viadev { 2201da177e4SLinus Torvalds unsigned int reg_offset; 2211da177e4SLinus Torvalds unsigned long port; 2221da177e4SLinus Torvalds int direction; /* playback = 0, capture = 1 */ 223e437e3d7STakashi Iwai struct snd_pcm_substream *substream; 2241da177e4SLinus Torvalds int running; 2251da177e4SLinus Torvalds unsigned int tbl_entries; /* # descriptors */ 2261da177e4SLinus Torvalds struct snd_dma_buffer table; 2271da177e4SLinus Torvalds struct snd_via_sg_table *idx_table; 2281da177e4SLinus Torvalds /* for recovery from the unexpected pointer */ 2291da177e4SLinus Torvalds unsigned int lastpos; 2301da177e4SLinus Torvalds unsigned int bufsize; 2311da177e4SLinus Torvalds unsigned int bufsize2; 2321da177e4SLinus Torvalds }; 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds enum { TYPE_CARD_VIA82XX_MODEM = 1 }; 2351da177e4SLinus Torvalds 2361da177e4SLinus Torvalds #define VIA_MAX_MODEM_DEVS 2 2371da177e4SLinus Torvalds 238e437e3d7STakashi Iwai struct via82xx_modem { 2391da177e4SLinus Torvalds int irq; 2401da177e4SLinus Torvalds 2411da177e4SLinus Torvalds unsigned long port; 2421da177e4SLinus Torvalds 2431da177e4SLinus Torvalds unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */ 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds struct pci_dev *pci; 246e437e3d7STakashi Iwai struct snd_card *card; 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds unsigned int num_devs; 2491da177e4SLinus Torvalds unsigned int playback_devno, capture_devno; 250e437e3d7STakashi Iwai struct viadev devs[VIA_MAX_MODEM_DEVS]; 2511da177e4SLinus Torvalds 252e437e3d7STakashi Iwai struct snd_pcm *pcms[2]; 2531da177e4SLinus Torvalds 254e437e3d7STakashi Iwai struct snd_ac97_bus *ac97_bus; 255e437e3d7STakashi Iwai struct snd_ac97 *ac97; 2561da177e4SLinus Torvalds unsigned int ac97_clock; 2571da177e4SLinus Torvalds unsigned int ac97_secondary; /* secondary AC'97 codec is present */ 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds spinlock_t reg_lock; 260e437e3d7STakashi Iwai struct snd_info_entry *proc_entry; 2611da177e4SLinus Torvalds }; 2621da177e4SLinus Torvalds 263f40b6890STakashi Iwai static struct pci_device_id snd_via82xx_modem_ids[] = { 2641da177e4SLinus Torvalds { 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, }, 2651da177e4SLinus Torvalds { 0, } 2661da177e4SLinus Torvalds }; 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids); 2691da177e4SLinus Torvalds 2701da177e4SLinus Torvalds /* 2711da177e4SLinus Torvalds */ 2721da177e4SLinus Torvalds 2731da177e4SLinus Torvalds /* 2741da177e4SLinus Torvalds * allocate and initialize the descriptor buffers 2751da177e4SLinus Torvalds * periods = number of periods 2761da177e4SLinus Torvalds * fragsize = period size in bytes 2771da177e4SLinus Torvalds */ 278e437e3d7STakashi Iwai static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream, 2791da177e4SLinus Torvalds struct pci_dev *pci, 2801da177e4SLinus Torvalds unsigned int periods, unsigned int fragsize) 2811da177e4SLinus Torvalds { 2821da177e4SLinus Torvalds unsigned int i, idx, ofs, rest; 283e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 2841da177e4SLinus Torvalds 2851da177e4SLinus Torvalds if (dev->table.area == NULL) { 2861da177e4SLinus Torvalds /* the start of each lists must be aligned to 8 bytes, 2871da177e4SLinus Torvalds * but the kernel pages are much bigger, so we don't care 2881da177e4SLinus Torvalds */ 2891da177e4SLinus Torvalds if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 2901da177e4SLinus Torvalds PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), 2911da177e4SLinus Torvalds &dev->table) < 0) 2921da177e4SLinus Torvalds return -ENOMEM; 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds if (! dev->idx_table) { 2951da177e4SLinus Torvalds dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL); 2961da177e4SLinus Torvalds if (! dev->idx_table) 2971da177e4SLinus Torvalds return -ENOMEM; 2981da177e4SLinus Torvalds } 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds /* fill the entries */ 3011da177e4SLinus Torvalds idx = 0; 3021da177e4SLinus Torvalds ofs = 0; 3031da177e4SLinus Torvalds for (i = 0; i < periods; i++) { 3041da177e4SLinus Torvalds rest = fragsize; 3051da177e4SLinus Torvalds /* fill descriptors for a period. 3061da177e4SLinus Torvalds * a period can be split to several descriptors if it's 3071da177e4SLinus Torvalds * over page boundary. 3081da177e4SLinus Torvalds */ 3091da177e4SLinus Torvalds do { 3101da177e4SLinus Torvalds unsigned int r; 3111da177e4SLinus Torvalds unsigned int flag; 31277a23f26STakashi Iwai unsigned int addr; 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds if (idx >= VIA_TABLE_SIZE) { 3151da177e4SLinus Torvalds snd_printk(KERN_ERR "via82xx: too much table size!\n"); 3161da177e4SLinus Torvalds return -EINVAL; 3171da177e4SLinus Torvalds } 31877a23f26STakashi Iwai addr = snd_pcm_sgbuf_get_addr(substream, ofs); 31977a23f26STakashi Iwai ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr); 3201da177e4SLinus Torvalds r = PAGE_SIZE - (ofs % PAGE_SIZE); 3211da177e4SLinus Torvalds if (rest < r) 3221da177e4SLinus Torvalds r = rest; 3231da177e4SLinus Torvalds rest -= r; 3241da177e4SLinus Torvalds if (! rest) { 3251da177e4SLinus Torvalds if (i == periods - 1) 3261da177e4SLinus Torvalds flag = VIA_TBL_BIT_EOL; /* buffer boundary */ 3271da177e4SLinus Torvalds else 3281da177e4SLinus Torvalds flag = VIA_TBL_BIT_FLAG; /* period boundary */ 3291da177e4SLinus Torvalds } else 3301da177e4SLinus Torvalds flag = 0; /* period continues to the next */ 331ee419653STakashi Iwai /* 332ee419653STakashi Iwai printk(KERN_DEBUG "via: tbl %d: at %d size %d " 333ee419653STakashi Iwai "(rest %d)\n", idx, ofs, r, rest); 334ee419653STakashi Iwai */ 3351da177e4SLinus Torvalds ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag); 3361da177e4SLinus Torvalds dev->idx_table[idx].offset = ofs; 3371da177e4SLinus Torvalds dev->idx_table[idx].size = r; 3381da177e4SLinus Torvalds ofs += r; 3391da177e4SLinus Torvalds idx++; 3401da177e4SLinus Torvalds } while (rest > 0); 3411da177e4SLinus Torvalds } 3421da177e4SLinus Torvalds dev->tbl_entries = idx; 3431da177e4SLinus Torvalds dev->bufsize = periods * fragsize; 3441da177e4SLinus Torvalds dev->bufsize2 = dev->bufsize / 2; 3451da177e4SLinus Torvalds return 0; 3461da177e4SLinus Torvalds } 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds 349e437e3d7STakashi Iwai static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream, 3501da177e4SLinus Torvalds struct pci_dev *pci) 3511da177e4SLinus Torvalds { 3521da177e4SLinus Torvalds if (dev->table.area) { 3531da177e4SLinus Torvalds snd_dma_free_pages(&dev->table); 3541da177e4SLinus Torvalds dev->table.area = NULL; 3551da177e4SLinus Torvalds } 3561da177e4SLinus Torvalds kfree(dev->idx_table); 3571da177e4SLinus Torvalds dev->idx_table = NULL; 3581da177e4SLinus Torvalds return 0; 3591da177e4SLinus Torvalds } 3601da177e4SLinus Torvalds 3611da177e4SLinus Torvalds /* 3621da177e4SLinus Torvalds * Basic I/O 3631da177e4SLinus Torvalds */ 3641da177e4SLinus Torvalds 365e437e3d7STakashi Iwai static inline unsigned int snd_via82xx_codec_xread(struct via82xx_modem *chip) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds return inl(VIAREG(chip, AC97)); 3681da177e4SLinus Torvalds } 3691da177e4SLinus Torvalds 370e437e3d7STakashi Iwai static inline void snd_via82xx_codec_xwrite(struct via82xx_modem *chip, unsigned int val) 3711da177e4SLinus Torvalds { 3721da177e4SLinus Torvalds outl(val, VIAREG(chip, AC97)); 3731da177e4SLinus Torvalds } 3741da177e4SLinus Torvalds 375e437e3d7STakashi Iwai static int snd_via82xx_codec_ready(struct via82xx_modem *chip, int secondary) 3761da177e4SLinus Torvalds { 3771da177e4SLinus Torvalds unsigned int timeout = 1000; /* 1ms */ 3781da177e4SLinus Torvalds unsigned int val; 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds while (timeout-- > 0) { 3811da177e4SLinus Torvalds udelay(1); 3821da177e4SLinus Torvalds if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)) 3831da177e4SLinus Torvalds return val & 0xffff; 3841da177e4SLinus Torvalds } 385e437e3d7STakashi Iwai snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", 386e437e3d7STakashi Iwai secondary, snd_via82xx_codec_xread(chip)); 3871da177e4SLinus Torvalds return -EIO; 3881da177e4SLinus Torvalds } 3891da177e4SLinus Torvalds 390e437e3d7STakashi Iwai static int snd_via82xx_codec_valid(struct via82xx_modem *chip, int secondary) 3911da177e4SLinus Torvalds { 3921da177e4SLinus Torvalds unsigned int timeout = 1000; /* 1ms */ 3931da177e4SLinus Torvalds unsigned int val, val1; 3941da177e4SLinus Torvalds unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : 3951da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID; 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds while (timeout-- > 0) { 3981da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 3991da177e4SLinus Torvalds val1 = val & (VIA_REG_AC97_BUSY | stat); 4001da177e4SLinus Torvalds if (val1 == stat) 4011da177e4SLinus Torvalds return val & 0xffff; 4021da177e4SLinus Torvalds udelay(1); 4031da177e4SLinus Torvalds } 4041da177e4SLinus Torvalds return -EIO; 4051da177e4SLinus Torvalds } 4061da177e4SLinus Torvalds 407e437e3d7STakashi Iwai static void snd_via82xx_codec_wait(struct snd_ac97 *ac97) 4081da177e4SLinus Torvalds { 409e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4101da177e4SLinus Torvalds int err; 4111da177e4SLinus Torvalds err = snd_via82xx_codec_ready(chip, ac97->num); 4121da177e4SLinus Torvalds /* here we need to wait fairly for long time.. */ 413ef21ca24SNishanth Aravamudan msleep(500); 4141da177e4SLinus Torvalds } 4151da177e4SLinus Torvalds 416e437e3d7STakashi Iwai static void snd_via82xx_codec_write(struct snd_ac97 *ac97, 4171da177e4SLinus Torvalds unsigned short reg, 4181da177e4SLinus Torvalds unsigned short val) 4191da177e4SLinus Torvalds { 420e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4211da177e4SLinus Torvalds unsigned int xval; 42283a5b72aSSasha Khapyorsky if(reg == AC97_GPIO_STATUS) { 42383a5b72aSSasha Khapyorsky outl(val, VIAREG(chip, GPI_STATUS)); 42483a5b72aSSasha Khapyorsky return; 42583a5b72aSSasha Khapyorsky } 4261da177e4SLinus Torvalds xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; 4271da177e4SLinus Torvalds xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; 4281da177e4SLinus Torvalds xval |= reg << VIA_REG_AC97_CMD_SHIFT; 4291da177e4SLinus Torvalds xval |= val << VIA_REG_AC97_DATA_SHIFT; 4301da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4311da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, ac97->num); 4321da177e4SLinus Torvalds } 4331da177e4SLinus Torvalds 434e437e3d7STakashi Iwai static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg) 4351da177e4SLinus Torvalds { 436e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4371da177e4SLinus Torvalds unsigned int xval, val = 0xffff; 4381da177e4SLinus Torvalds int again = 0; 4391da177e4SLinus Torvalds 4401da177e4SLinus Torvalds xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT; 4411da177e4SLinus Torvalds xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID; 4421da177e4SLinus Torvalds xval |= VIA_REG_AC97_READ; 4431da177e4SLinus Torvalds xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT; 4441da177e4SLinus Torvalds while (1) { 4451da177e4SLinus Torvalds if (again++ > 3) { 446e437e3d7STakashi Iwai snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", 447e437e3d7STakashi Iwai ac97->num, snd_via82xx_codec_xread(chip)); 4481da177e4SLinus Torvalds return 0xffff; 4491da177e4SLinus Torvalds } 4501da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4511da177e4SLinus Torvalds udelay (20); 4521da177e4SLinus Torvalds if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { 4531da177e4SLinus Torvalds udelay(25); 4541da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 4551da177e4SLinus Torvalds break; 4561da177e4SLinus Torvalds } 4571da177e4SLinus Torvalds } 4581da177e4SLinus Torvalds return val & 0xffff; 4591da177e4SLinus Torvalds } 4601da177e4SLinus Torvalds 461e437e3d7STakashi Iwai static void snd_via82xx_channel_reset(struct via82xx_modem *chip, struct viadev *viadev) 4621da177e4SLinus Torvalds { 4631da177e4SLinus Torvalds outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, 4641da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_CONTROL)); 4651da177e4SLinus Torvalds inb(VIADEV_REG(viadev, OFFSET_CONTROL)); 4661da177e4SLinus Torvalds udelay(50); 4671da177e4SLinus Torvalds /* disable interrupts */ 4681da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL)); 4691da177e4SLinus Torvalds /* clear interrupts */ 4701da177e4SLinus Torvalds outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS)); 4711da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */ 4721da177e4SLinus Torvalds // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR)); 4731da177e4SLinus Torvalds viadev->lastpos = 0; 4741da177e4SLinus Torvalds } 4751da177e4SLinus Torvalds 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds /* 4781da177e4SLinus Torvalds * Interrupt handler 4791da177e4SLinus Torvalds */ 4801da177e4SLinus Torvalds 4817d12e780SDavid Howells static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id) 4821da177e4SLinus Torvalds { 483e437e3d7STakashi Iwai struct via82xx_modem *chip = dev_id; 4841da177e4SLinus Torvalds unsigned int status; 4851da177e4SLinus Torvalds unsigned int i; 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds status = inl(VIAREG(chip, SGD_SHADOW)); 4881da177e4SLinus Torvalds if (! (status & chip->intr_mask)) { 4891da177e4SLinus Torvalds return IRQ_NONE; 4901da177e4SLinus Torvalds } 4911da177e4SLinus Torvalds // _skip_sgd: 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds /* check status for each stream */ 4941da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 4951da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) { 496e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[i]; 4971da177e4SLinus Torvalds unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); 4981da177e4SLinus Torvalds c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED); 4991da177e4SLinus Torvalds if (! c_status) 5001da177e4SLinus Torvalds continue; 5011da177e4SLinus Torvalds if (viadev->substream && viadev->running) { 5021da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5031da177e4SLinus Torvalds snd_pcm_period_elapsed(viadev->substream); 5041da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */ 5071da177e4SLinus Torvalds } 5081da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5091da177e4SLinus Torvalds return IRQ_HANDLED; 5101da177e4SLinus Torvalds } 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvalds /* 5131da177e4SLinus Torvalds * PCM callbacks 5141da177e4SLinus Torvalds */ 5151da177e4SLinus Torvalds 5161da177e4SLinus Torvalds /* 5171da177e4SLinus Torvalds * trigger callback 5181da177e4SLinus Torvalds */ 519e437e3d7STakashi Iwai static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 5201da177e4SLinus Torvalds { 521e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 522e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 5231da177e4SLinus Torvalds unsigned char val = 0; 5241da177e4SLinus Torvalds 5251da177e4SLinus Torvalds switch (cmd) { 5261da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_START: 52741e4845cSJaroslav Kysela case SNDRV_PCM_TRIGGER_SUSPEND: 5281da177e4SLinus Torvalds val |= VIA_REG_CTRL_START; 5291da177e4SLinus Torvalds viadev->running = 1; 5301da177e4SLinus Torvalds break; 5311da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_STOP: 5321da177e4SLinus Torvalds val = VIA_REG_CTRL_TERMINATE; 5331da177e4SLinus Torvalds viadev->running = 0; 5341da177e4SLinus Torvalds break; 5351da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 5361da177e4SLinus Torvalds val |= VIA_REG_CTRL_PAUSE; 5371da177e4SLinus Torvalds viadev->running = 0; 5381da177e4SLinus Torvalds break; 5391da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 5401da177e4SLinus Torvalds viadev->running = 1; 5411da177e4SLinus Torvalds break; 5421da177e4SLinus Torvalds default: 5431da177e4SLinus Torvalds return -EINVAL; 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds outb(val, VIADEV_REG(viadev, OFFSET_CONTROL)); 5461da177e4SLinus Torvalds if (cmd == SNDRV_PCM_TRIGGER_STOP) 5471da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 5481da177e4SLinus Torvalds return 0; 5491da177e4SLinus Torvalds } 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds /* 5521da177e4SLinus Torvalds * pointer callbacks 5531da177e4SLinus Torvalds */ 5541da177e4SLinus Torvalds 5551da177e4SLinus Torvalds /* 5561da177e4SLinus Torvalds * calculate the linear position at the given sg-buffer index and the rest count 5571da177e4SLinus Torvalds */ 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds #define check_invalid_pos(viadev,pos) \ 560e437e3d7STakashi Iwai ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\ 561e437e3d7STakashi Iwai viadev->lastpos < viadev->bufsize2)) 5621da177e4SLinus Torvalds 563e437e3d7STakashi Iwai static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx, 564e437e3d7STakashi Iwai unsigned int count) 5651da177e4SLinus Torvalds { 5661da177e4SLinus Torvalds unsigned int size, res; 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds size = viadev->idx_table[idx].size; 5691da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size - count; 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds /* check the validity of the calculated position */ 5721da177e4SLinus Torvalds if (size < count) { 573e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", 574e437e3d7STakashi Iwai (int)size, (int)count); 5751da177e4SLinus Torvalds res = viadev->lastpos; 5761da177e4SLinus Torvalds } else if (check_invalid_pos(viadev, res)) { 5771da177e4SLinus Torvalds #ifdef POINTER_DEBUG 578e437e3d7STakashi Iwai printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, " 579e437e3d7STakashi Iwai "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, " 580e437e3d7STakashi Iwai "count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, 581e437e3d7STakashi Iwai viadev->bufsize2, viadev->idx_table[idx].offset, 582e437e3d7STakashi Iwai viadev->idx_table[idx].size, count); 5831da177e4SLinus Torvalds #endif 5841da177e4SLinus Torvalds if (count && size < count) { 585e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr, " 586e437e3d7STakashi Iwai "using last valid pointer\n"); 5871da177e4SLinus Torvalds res = viadev->lastpos; 5881da177e4SLinus Torvalds } else { 5891da177e4SLinus Torvalds if (! count) 5901da177e4SLinus Torvalds /* bogus count 0 on the DMA boundary? */ 5911da177e4SLinus Torvalds res = viadev->idx_table[idx].offset; 5921da177e4SLinus Torvalds else 593e437e3d7STakashi Iwai /* count register returns full size 594e437e3d7STakashi Iwai * when end of buffer is reached 595e437e3d7STakashi Iwai */ 5961da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size; 5971da177e4SLinus Torvalds if (check_invalid_pos(viadev, res)) { 598e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), " 599e437e3d7STakashi Iwai "using last valid pointer\n"); 6001da177e4SLinus Torvalds res = viadev->lastpos; 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds } 6031da177e4SLinus Torvalds } 6041da177e4SLinus Torvalds viadev->lastpos = res; /* remember the last position */ 6051da177e4SLinus Torvalds if (res >= viadev->bufsize) 6061da177e4SLinus Torvalds res -= viadev->bufsize; 6071da177e4SLinus Torvalds return res; 6081da177e4SLinus Torvalds } 6091da177e4SLinus Torvalds 6101da177e4SLinus Torvalds /* 6111da177e4SLinus Torvalds * get the current pointer on via686 6121da177e4SLinus Torvalds */ 613e437e3d7STakashi Iwai static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream) 6141da177e4SLinus Torvalds { 615e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 616e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6171da177e4SLinus Torvalds unsigned int idx, ptr, count, res; 6181da177e4SLinus Torvalds 619da3cec35STakashi Iwai if (snd_BUG_ON(!viadev->tbl_entries)) 620da3cec35STakashi Iwai return 0; 6211da177e4SLinus Torvalds if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE)) 6221da177e4SLinus Torvalds return 0; 6231da177e4SLinus Torvalds 6241da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 6251da177e4SLinus Torvalds count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff; 6261da177e4SLinus Torvalds /* The via686a does not have the current index register, 6271da177e4SLinus Torvalds * so we need to calculate the index from CURR_PTR. 6281da177e4SLinus Torvalds */ 6291da177e4SLinus Torvalds ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR)); 6301da177e4SLinus Torvalds if (ptr <= (unsigned int)viadev->table.addr) 6311da177e4SLinus Torvalds idx = 0; 6321da177e4SLinus Torvalds else /* CURR_PTR holds the address + 8 */ 633e437e3d7STakashi Iwai idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % 634e437e3d7STakashi Iwai viadev->tbl_entries; 6351da177e4SLinus Torvalds res = calc_linear_pos(viadev, idx, count); 6361da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 6371da177e4SLinus Torvalds 6381da177e4SLinus Torvalds return bytes_to_frames(substream->runtime, res); 6391da177e4SLinus Torvalds } 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds /* 6421da177e4SLinus Torvalds * hw_params callback: 6431da177e4SLinus Torvalds * allocate the buffer and build up the buffer description table 6441da177e4SLinus Torvalds */ 645e437e3d7STakashi Iwai static int snd_via82xx_hw_params(struct snd_pcm_substream *substream, 646e437e3d7STakashi Iwai struct snd_pcm_hw_params *hw_params) 6471da177e4SLinus Torvalds { 648e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 649e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6501da177e4SLinus Torvalds int err; 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 6531da177e4SLinus Torvalds if (err < 0) 6541da177e4SLinus Torvalds return err; 6551da177e4SLinus Torvalds err = build_via_table(viadev, substream, chip->pci, 6561da177e4SLinus Torvalds params_periods(hw_params), 6571da177e4SLinus Torvalds params_period_bytes(hw_params)); 6581da177e4SLinus Torvalds if (err < 0) 6591da177e4SLinus Torvalds return err; 6601da177e4SLinus Torvalds 6611da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params)); 6621da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0); 6631da177e4SLinus Torvalds 6641da177e4SLinus Torvalds return 0; 6651da177e4SLinus Torvalds } 6661da177e4SLinus Torvalds 6671da177e4SLinus Torvalds /* 6681da177e4SLinus Torvalds * hw_free callback: 6691da177e4SLinus Torvalds * clean up the buffer description table and release the buffer 6701da177e4SLinus Torvalds */ 671e437e3d7STakashi Iwai static int snd_via82xx_hw_free(struct snd_pcm_substream *substream) 6721da177e4SLinus Torvalds { 673e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 674e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6751da177e4SLinus Torvalds 6761da177e4SLinus Torvalds clean_via_table(viadev, substream, chip->pci); 6771da177e4SLinus Torvalds snd_pcm_lib_free_pages(substream); 6781da177e4SLinus Torvalds return 0; 6791da177e4SLinus Torvalds } 6801da177e4SLinus Torvalds 6811da177e4SLinus Torvalds 6821da177e4SLinus Torvalds /* 6831da177e4SLinus Torvalds * set up the table pointer 6841da177e4SLinus Torvalds */ 685e437e3d7STakashi Iwai static void snd_via82xx_set_table_ptr(struct via82xx_modem *chip, struct viadev *viadev) 6861da177e4SLinus Torvalds { 6871da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6881da177e4SLinus Torvalds outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR)); 6891da177e4SLinus Torvalds udelay(20); 6901da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6911da177e4SLinus Torvalds } 6921da177e4SLinus Torvalds 6931da177e4SLinus Torvalds /* 6941da177e4SLinus Torvalds * prepare callback for playback and capture 6951da177e4SLinus Torvalds */ 696e437e3d7STakashi Iwai static int snd_via82xx_pcm_prepare(struct snd_pcm_substream *substream) 6971da177e4SLinus Torvalds { 698e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 699e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 7001da177e4SLinus Torvalds 7011da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 7021da177e4SLinus Torvalds /* this must be set after channel_reset */ 7031da177e4SLinus Torvalds snd_via82xx_set_table_ptr(chip, viadev); 7041da177e4SLinus Torvalds outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG, 7051da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_TYPE)); 7061da177e4SLinus Torvalds return 0; 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds /* 7101da177e4SLinus Torvalds * pcm hardware definition, identical for both playback and capture 7111da177e4SLinus Torvalds */ 712e437e3d7STakashi Iwai static struct snd_pcm_hardware snd_via82xx_hw = 7131da177e4SLinus Torvalds { 7141da177e4SLinus Torvalds .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 7151da177e4SLinus Torvalds SNDRV_PCM_INFO_BLOCK_TRANSFER | 7161da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP_VALID | 71741e4845cSJaroslav Kysela /* SNDRV_PCM_INFO_RESUME | */ 7181da177e4SLinus Torvalds SNDRV_PCM_INFO_PAUSE), 7191da177e4SLinus Torvalds .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 7201da177e4SLinus Torvalds .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, 7211da177e4SLinus Torvalds .rate_min = 8000, 7221da177e4SLinus Torvalds .rate_max = 16000, 7231da177e4SLinus Torvalds .channels_min = 1, 7241da177e4SLinus Torvalds .channels_max = 1, 7251da177e4SLinus Torvalds .buffer_bytes_max = 128 * 1024, 7261da177e4SLinus Torvalds .period_bytes_min = 32, 7271da177e4SLinus Torvalds .period_bytes_max = 128 * 1024, 7281da177e4SLinus Torvalds .periods_min = 2, 7291da177e4SLinus Torvalds .periods_max = VIA_TABLE_SIZE / 2, 7301da177e4SLinus Torvalds .fifo_size = 0, 7311da177e4SLinus Torvalds }; 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds 7341da177e4SLinus Torvalds /* 7351da177e4SLinus Torvalds * open callback skeleton 7361da177e4SLinus Torvalds */ 737e437e3d7STakashi Iwai static int snd_via82xx_modem_pcm_open(struct via82xx_modem *chip, struct viadev *viadev, 738e437e3d7STakashi Iwai struct snd_pcm_substream *substream) 7391da177e4SLinus Torvalds { 740e437e3d7STakashi Iwai struct snd_pcm_runtime *runtime = substream->runtime; 7411da177e4SLinus Torvalds int err; 7421da177e4SLinus Torvalds static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; 743e437e3d7STakashi Iwai static struct snd_pcm_hw_constraint_list hw_constraints_rates = { 7441da177e4SLinus Torvalds .count = ARRAY_SIZE(rates), 7451da177e4SLinus Torvalds .list = rates, 7461da177e4SLinus Torvalds .mask = 0, 7471da177e4SLinus Torvalds }; 7481da177e4SLinus Torvalds 7491da177e4SLinus Torvalds runtime->hw = snd_via82xx_hw; 7501da177e4SLinus Torvalds 751e437e3d7STakashi Iwai if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 752e437e3d7STakashi Iwai &hw_constraints_rates)) < 0) 7531da177e4SLinus Torvalds return err; 7541da177e4SLinus Torvalds 7551da177e4SLinus Torvalds /* we may remove following constaint when we modify table entries 7561da177e4SLinus Torvalds in interrupt */ 7571da177e4SLinus Torvalds if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) 7581da177e4SLinus Torvalds return err; 7591da177e4SLinus Torvalds 7601da177e4SLinus Torvalds runtime->private_data = viadev; 7611da177e4SLinus Torvalds viadev->substream = substream; 7621da177e4SLinus Torvalds 7631da177e4SLinus Torvalds return 0; 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds /* 7681da177e4SLinus Torvalds * open callback for playback 7691da177e4SLinus Torvalds */ 770e437e3d7STakashi Iwai static int snd_via82xx_playback_open(struct snd_pcm_substream *substream) 7711da177e4SLinus Torvalds { 772e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 773e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number]; 7741da177e4SLinus Torvalds 7751da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7761da177e4SLinus Torvalds } 7771da177e4SLinus Torvalds 7781da177e4SLinus Torvalds /* 7791da177e4SLinus Torvalds * open callback for capture 7801da177e4SLinus Torvalds */ 781e437e3d7STakashi Iwai static int snd_via82xx_capture_open(struct snd_pcm_substream *substream) 7821da177e4SLinus Torvalds { 783e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 784e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device]; 7851da177e4SLinus Torvalds 7861da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7871da177e4SLinus Torvalds } 7881da177e4SLinus Torvalds 7891da177e4SLinus Torvalds /* 7901da177e4SLinus Torvalds * close callback 7911da177e4SLinus Torvalds */ 792e437e3d7STakashi Iwai static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream) 7931da177e4SLinus Torvalds { 794e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds viadev->substream = NULL; 7971da177e4SLinus Torvalds return 0; 7981da177e4SLinus Torvalds } 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds 8011da177e4SLinus Torvalds /* via686 playback callbacks */ 802e437e3d7STakashi Iwai static struct snd_pcm_ops snd_via686_playback_ops = { 8031da177e4SLinus Torvalds .open = snd_via82xx_playback_open, 8041da177e4SLinus Torvalds .close = snd_via82xx_pcm_close, 8051da177e4SLinus Torvalds .ioctl = snd_pcm_lib_ioctl, 8061da177e4SLinus Torvalds .hw_params = snd_via82xx_hw_params, 8071da177e4SLinus Torvalds .hw_free = snd_via82xx_hw_free, 8081da177e4SLinus Torvalds .prepare = snd_via82xx_pcm_prepare, 80983a5b72aSSasha Khapyorsky .trigger = snd_via82xx_pcm_trigger, 8101da177e4SLinus Torvalds .pointer = snd_via686_pcm_pointer, 8111da177e4SLinus Torvalds .page = snd_pcm_sgbuf_ops_page, 8121da177e4SLinus Torvalds }; 8131da177e4SLinus Torvalds 8141da177e4SLinus Torvalds /* via686 capture callbacks */ 815e437e3d7STakashi Iwai static struct snd_pcm_ops snd_via686_capture_ops = { 8161da177e4SLinus Torvalds .open = snd_via82xx_capture_open, 8171da177e4SLinus Torvalds .close = snd_via82xx_pcm_close, 8181da177e4SLinus Torvalds .ioctl = snd_pcm_lib_ioctl, 8191da177e4SLinus Torvalds .hw_params = snd_via82xx_hw_params, 8201da177e4SLinus Torvalds .hw_free = snd_via82xx_hw_free, 8211da177e4SLinus Torvalds .prepare = snd_via82xx_pcm_prepare, 82283a5b72aSSasha Khapyorsky .trigger = snd_via82xx_pcm_trigger, 8231da177e4SLinus Torvalds .pointer = snd_via686_pcm_pointer, 8241da177e4SLinus Torvalds .page = snd_pcm_sgbuf_ops_page, 8251da177e4SLinus Torvalds }; 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds 828e437e3d7STakashi Iwai static void init_viadev(struct via82xx_modem *chip, int idx, unsigned int reg_offset, 829e437e3d7STakashi Iwai int direction) 8301da177e4SLinus Torvalds { 8311da177e4SLinus Torvalds chip->devs[idx].reg_offset = reg_offset; 8321da177e4SLinus Torvalds chip->devs[idx].direction = direction; 8331da177e4SLinus Torvalds chip->devs[idx].port = chip->port + reg_offset; 8341da177e4SLinus Torvalds } 8351da177e4SLinus Torvalds 8361da177e4SLinus Torvalds /* 8371da177e4SLinus Torvalds * create a pcm instance for via686a/b 8381da177e4SLinus Torvalds */ 839e437e3d7STakashi Iwai static int __devinit snd_via686_pcm_new(struct via82xx_modem *chip) 8401da177e4SLinus Torvalds { 841e437e3d7STakashi Iwai struct snd_pcm *pcm; 8421da177e4SLinus Torvalds int err; 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds chip->playback_devno = 0; 8451da177e4SLinus Torvalds chip->capture_devno = 1; 8461da177e4SLinus Torvalds chip->num_devs = 2; 8471da177e4SLinus Torvalds chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */ 8481da177e4SLinus Torvalds 8491da177e4SLinus Torvalds err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm); 8501da177e4SLinus Torvalds if (err < 0) 8511da177e4SLinus Torvalds return err; 8521da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops); 8531da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops); 8546632d198SSasha Khapyorsky pcm->dev_class = SNDRV_PCM_CLASS_MODEM; 8551da177e4SLinus Torvalds pcm->private_data = chip; 8561da177e4SLinus Torvalds strcpy(pcm->name, chip->card->shortname); 8571da177e4SLinus Torvalds chip->pcms[0] = pcm; 8581da177e4SLinus Torvalds init_viadev(chip, 0, VIA_REG_MO_STATUS, 0); 8591da177e4SLinus Torvalds init_viadev(chip, 1, VIA_REG_MI_STATUS, 1); 8601da177e4SLinus Torvalds 8611da177e4SLinus Torvalds if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 862e437e3d7STakashi Iwai snd_dma_pci_data(chip->pci), 863e437e3d7STakashi Iwai 64*1024, 128*1024)) < 0) 8641da177e4SLinus Torvalds return err; 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds return 0; 8671da177e4SLinus Torvalds } 8681da177e4SLinus Torvalds 8691da177e4SLinus Torvalds 8701da177e4SLinus Torvalds /* 8711da177e4SLinus Torvalds * Mixer part 8721da177e4SLinus Torvalds */ 8731da177e4SLinus Torvalds 8741da177e4SLinus Torvalds 875e437e3d7STakashi Iwai static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus) 8761da177e4SLinus Torvalds { 877e437e3d7STakashi Iwai struct via82xx_modem *chip = bus->private_data; 8781da177e4SLinus Torvalds chip->ac97_bus = NULL; 8791da177e4SLinus Torvalds } 8801da177e4SLinus Torvalds 881e437e3d7STakashi Iwai static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97) 8821da177e4SLinus Torvalds { 883e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 8841da177e4SLinus Torvalds chip->ac97 = NULL; 8851da177e4SLinus Torvalds } 8861da177e4SLinus Torvalds 8871da177e4SLinus Torvalds 888e437e3d7STakashi Iwai static int __devinit snd_via82xx_mixer_new(struct via82xx_modem *chip) 8891da177e4SLinus Torvalds { 890e437e3d7STakashi Iwai struct snd_ac97_template ac97; 8911da177e4SLinus Torvalds int err; 892e437e3d7STakashi Iwai static struct snd_ac97_bus_ops ops = { 8931da177e4SLinus Torvalds .write = snd_via82xx_codec_write, 8941da177e4SLinus Torvalds .read = snd_via82xx_codec_read, 8951da177e4SLinus Torvalds .wait = snd_via82xx_codec_wait, 8961da177e4SLinus Torvalds }; 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0) 8991da177e4SLinus Torvalds return err; 9001da177e4SLinus Torvalds chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus; 9011da177e4SLinus Torvalds chip->ac97_bus->clock = chip->ac97_clock; 9021da177e4SLinus Torvalds 9031da177e4SLinus Torvalds memset(&ac97, 0, sizeof(ac97)); 9041da177e4SLinus Torvalds ac97.private_data = chip; 9051da177e4SLinus Torvalds ac97.private_free = snd_via82xx_mixer_free_ac97; 9061da177e4SLinus Torvalds ac97.pci = chip->pci; 907f1a63a38STakashi Iwai ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE; 9081da177e4SLinus Torvalds ac97.num = chip->ac97_secondary; 9091da177e4SLinus Torvalds 9101da177e4SLinus Torvalds if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) 9111da177e4SLinus Torvalds return err; 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds return 0; 9141da177e4SLinus Torvalds } 9151da177e4SLinus Torvalds 9161da177e4SLinus Torvalds 9171da177e4SLinus Torvalds /* 9181da177e4SLinus Torvalds * proc interface 9191da177e4SLinus Torvalds */ 920e437e3d7STakashi Iwai static void snd_via82xx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 9211da177e4SLinus Torvalds { 922e437e3d7STakashi Iwai struct via82xx_modem *chip = entry->private_data; 9231da177e4SLinus Torvalds int i; 9241da177e4SLinus Torvalds 9251da177e4SLinus Torvalds snd_iprintf(buffer, "%s\n\n", chip->card->longname); 9261da177e4SLinus Torvalds for (i = 0; i < 0xa0; i += 4) { 9271da177e4SLinus Torvalds snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i)); 9281da177e4SLinus Torvalds } 9291da177e4SLinus Torvalds } 9301da177e4SLinus Torvalds 931e437e3d7STakashi Iwai static void __devinit snd_via82xx_proc_init(struct via82xx_modem *chip) 9321da177e4SLinus Torvalds { 933e437e3d7STakashi Iwai struct snd_info_entry *entry; 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds if (! snd_card_proc_new(chip->card, "via82xx", &entry)) 936bf850204STakashi Iwai snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read); 9371da177e4SLinus Torvalds } 9381da177e4SLinus Torvalds 9391da177e4SLinus Torvalds /* 9401da177e4SLinus Torvalds * 9411da177e4SLinus Torvalds */ 9421da177e4SLinus Torvalds 943e437e3d7STakashi Iwai static int snd_via82xx_chip_init(struct via82xx_modem *chip) 9441da177e4SLinus Torvalds { 9451da177e4SLinus Torvalds unsigned int val; 946ef21ca24SNishanth Aravamudan unsigned long end_time; 9471da177e4SLinus Torvalds unsigned char pval; 9481da177e4SLinus Torvalds 9491da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); 9501da177e4SLinus Torvalds if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) { 9511da177e4SLinus Torvalds pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT); 9521da177e4SLinus Torvalds udelay(100); 9531da177e4SLinus Torvalds } 9541da177e4SLinus Torvalds 9551da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9561da177e4SLinus Torvalds if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */ 9571da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC */ 9581da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9591da177e4SLinus Torvalds VIA_ACLINK_CTRL_ENABLE | 9601da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET | 9611da177e4SLinus Torvalds VIA_ACLINK_CTRL_SYNC); 9621da177e4SLinus Torvalds udelay(100); 9631da177e4SLinus Torvalds #if 1 /* FIXME: should we do full reset here for all chip models? */ 9641da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00); 9651da177e4SLinus Torvalds udelay(100); 9661da177e4SLinus Torvalds #else 9671da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ 9681da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9691da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC); 9701da177e4SLinus Torvalds udelay(2); 9711da177e4SLinus Torvalds #endif 9721da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9731da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9741da177e4SLinus Torvalds udelay(100); 9751da177e4SLinus Torvalds } 9761da177e4SLinus Torvalds 9771da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval); 9781da177e4SLinus Torvalds if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) { 9791da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9801da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9811da177e4SLinus Torvalds udelay(100); 9821da177e4SLinus Torvalds } 9831da177e4SLinus Torvalds 9841da177e4SLinus Torvalds /* wait until codec ready */ 985ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 9861da177e4SLinus Torvalds do { 9871da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9881da177e4SLinus Torvalds if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ 9891da177e4SLinus Torvalds break; 990d86d0193SRene Herman schedule_timeout_uninterruptible(1); 991ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 9921da177e4SLinus Torvalds 9931da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) 99499b359baSTakashi Iwai snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val); 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | 9971da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID | 9981da177e4SLinus Torvalds (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); 999ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 10001da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | 10011da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID | 10021da177e4SLinus Torvalds (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); 10031da177e4SLinus Torvalds do { 10041da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) { 10051da177e4SLinus Torvalds chip->ac97_secondary = 1; 10061da177e4SLinus Torvalds goto __ac97_ok2; 10071da177e4SLinus Torvalds } 1008d86d0193SRene Herman schedule_timeout_uninterruptible(1); 1009ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 10101da177e4SLinus Torvalds /* This is ok, the most of motherboards have only one codec */ 10111da177e4SLinus Torvalds 10121da177e4SLinus Torvalds __ac97_ok2: 10131da177e4SLinus Torvalds 10141da177e4SLinus Torvalds /* route FM trap to IRQ, disable FM trap */ 10151da177e4SLinus Torvalds // pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0); 10161da177e4SLinus Torvalds /* disable all GPI interrupts */ 10171da177e4SLinus Torvalds outl(0, VIAREG(chip, GPI_INTR)); 10181da177e4SLinus Torvalds 10191da177e4SLinus Torvalds return 0; 10201da177e4SLinus Torvalds } 10211da177e4SLinus Torvalds 10221da177e4SLinus Torvalds #ifdef CONFIG_PM 10231da177e4SLinus Torvalds /* 10241da177e4SLinus Torvalds * power management 10251da177e4SLinus Torvalds */ 102657feb835STakashi Iwai static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state) 10271da177e4SLinus Torvalds { 102857feb835STakashi Iwai struct snd_card *card = pci_get_drvdata(pci); 102957feb835STakashi Iwai struct via82xx_modem *chip = card->private_data; 10301da177e4SLinus Torvalds int i; 10311da177e4SLinus Torvalds 103257feb835STakashi Iwai snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 10331da177e4SLinus Torvalds for (i = 0; i < 2; i++) 10341da177e4SLinus Torvalds snd_pcm_suspend_all(chip->pcms[i]); 10351da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10361da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10371da177e4SLinus Torvalds synchronize_irq(chip->irq); 10381da177e4SLinus Torvalds snd_ac97_suspend(chip->ac97); 103930b35399STakashi Iwai 104057feb835STakashi Iwai pci_disable_device(pci); 104157feb835STakashi Iwai pci_save_state(pci); 104230b35399STakashi Iwai pci_set_power_state(pci, pci_choose_state(pci, state)); 10431da177e4SLinus Torvalds return 0; 10441da177e4SLinus Torvalds } 10451da177e4SLinus Torvalds 104657feb835STakashi Iwai static int snd_via82xx_resume(struct pci_dev *pci) 10471da177e4SLinus Torvalds { 104857feb835STakashi Iwai struct snd_card *card = pci_get_drvdata(pci); 104957feb835STakashi Iwai struct via82xx_modem *chip = card->private_data; 10501da177e4SLinus Torvalds int i; 10511da177e4SLinus Torvalds 105257feb835STakashi Iwai pci_set_power_state(pci, PCI_D0); 105330b35399STakashi Iwai pci_restore_state(pci); 105430b35399STakashi Iwai if (pci_enable_device(pci) < 0) { 105530b35399STakashi Iwai printk(KERN_ERR "via82xx-modem: pci_enable_device failed, " 105630b35399STakashi Iwai "disabling device\n"); 105730b35399STakashi Iwai snd_card_disconnect(card); 105830b35399STakashi Iwai return -EIO; 105930b35399STakashi Iwai } 106057feb835STakashi Iwai pci_set_master(pci); 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds snd_via82xx_chip_init(chip); 10631da177e4SLinus Torvalds 10641da177e4SLinus Torvalds snd_ac97_resume(chip->ac97); 10651da177e4SLinus Torvalds 10661da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10671da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10681da177e4SLinus Torvalds 106957feb835STakashi Iwai snd_power_change_state(card, SNDRV_CTL_POWER_D0); 10701da177e4SLinus Torvalds return 0; 10711da177e4SLinus Torvalds } 10721da177e4SLinus Torvalds #endif /* CONFIG_PM */ 10731da177e4SLinus Torvalds 1074e437e3d7STakashi Iwai static int snd_via82xx_free(struct via82xx_modem *chip) 10751da177e4SLinus Torvalds { 10761da177e4SLinus Torvalds unsigned int i; 10771da177e4SLinus Torvalds 10781da177e4SLinus Torvalds if (chip->irq < 0) 10791da177e4SLinus Torvalds goto __end_hw; 10801da177e4SLinus Torvalds /* disable interrupts */ 10811da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10821da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 1083f000fd80SJeff Garzik 10841da177e4SLinus Torvalds __end_hw: 10851da177e4SLinus Torvalds if (chip->irq >= 0) 1086e437e3d7STakashi Iwai free_irq(chip->irq, chip); 10871da177e4SLinus Torvalds pci_release_regions(chip->pci); 10881da177e4SLinus Torvalds pci_disable_device(chip->pci); 10891da177e4SLinus Torvalds kfree(chip); 10901da177e4SLinus Torvalds return 0; 10911da177e4SLinus Torvalds } 10921da177e4SLinus Torvalds 1093e437e3d7STakashi Iwai static int snd_via82xx_dev_free(struct snd_device *device) 10941da177e4SLinus Torvalds { 1095e437e3d7STakashi Iwai struct via82xx_modem *chip = device->device_data; 10961da177e4SLinus Torvalds return snd_via82xx_free(chip); 10971da177e4SLinus Torvalds } 10981da177e4SLinus Torvalds 1099e437e3d7STakashi Iwai static int __devinit snd_via82xx_create(struct snd_card *card, 11001da177e4SLinus Torvalds struct pci_dev *pci, 11011da177e4SLinus Torvalds int chip_type, 11021da177e4SLinus Torvalds int revision, 11031da177e4SLinus Torvalds unsigned int ac97_clock, 1104e437e3d7STakashi Iwai struct via82xx_modem ** r_via) 11051da177e4SLinus Torvalds { 1106e437e3d7STakashi Iwai struct via82xx_modem *chip; 11071da177e4SLinus Torvalds int err; 1108e437e3d7STakashi Iwai static struct snd_device_ops ops = { 11091da177e4SLinus Torvalds .dev_free = snd_via82xx_dev_free, 11101da177e4SLinus Torvalds }; 11111da177e4SLinus Torvalds 11121da177e4SLinus Torvalds if ((err = pci_enable_device(pci)) < 0) 11131da177e4SLinus Torvalds return err; 11141da177e4SLinus Torvalds 1115e560d8d8STakashi Iwai if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) { 11161da177e4SLinus Torvalds pci_disable_device(pci); 11171da177e4SLinus Torvalds return -ENOMEM; 11181da177e4SLinus Torvalds } 11191da177e4SLinus Torvalds 11201da177e4SLinus Torvalds spin_lock_init(&chip->reg_lock); 11211da177e4SLinus Torvalds chip->card = card; 11221da177e4SLinus Torvalds chip->pci = pci; 11231da177e4SLinus Torvalds chip->irq = -1; 11241da177e4SLinus Torvalds 11251da177e4SLinus Torvalds if ((err = pci_request_regions(pci, card->driver)) < 0) { 11261da177e4SLinus Torvalds kfree(chip); 11271da177e4SLinus Torvalds pci_disable_device(pci); 11281da177e4SLinus Torvalds return err; 11291da177e4SLinus Torvalds } 11301da177e4SLinus Torvalds chip->port = pci_resource_start(pci, 0); 1131437a5a46STakashi Iwai if (request_irq(pci->irq, snd_via82xx_interrupt, IRQF_SHARED, 1132e437e3d7STakashi Iwai card->driver, chip)) { 113399b359baSTakashi Iwai snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 11341da177e4SLinus Torvalds snd_via82xx_free(chip); 11351da177e4SLinus Torvalds return -EBUSY; 11361da177e4SLinus Torvalds } 11371da177e4SLinus Torvalds chip->irq = pci->irq; 11381da177e4SLinus Torvalds if (ac97_clock >= 8000 && ac97_clock <= 48000) 11391da177e4SLinus Torvalds chip->ac97_clock = ac97_clock; 11401da177e4SLinus Torvalds synchronize_irq(chip->irq); 11411da177e4SLinus Torvalds 11421da177e4SLinus Torvalds if ((err = snd_via82xx_chip_init(chip)) < 0) { 11431da177e4SLinus Torvalds snd_via82xx_free(chip); 11441da177e4SLinus Torvalds return err; 11451da177e4SLinus Torvalds } 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvalds if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 11481da177e4SLinus Torvalds snd_via82xx_free(chip); 11491da177e4SLinus Torvalds return err; 11501da177e4SLinus Torvalds } 11511da177e4SLinus Torvalds 11521da177e4SLinus Torvalds /* The 8233 ac97 controller does not implement the master bit 11531da177e4SLinus Torvalds * in the pci command register. IMHO this is a violation of the PCI spec. 11541da177e4SLinus Torvalds * We call pci_set_master here because it does not hurt. */ 11551da177e4SLinus Torvalds pci_set_master(pci); 11561da177e4SLinus Torvalds 11571da177e4SLinus Torvalds snd_card_set_dev(card, &pci->dev); 11581da177e4SLinus Torvalds 11591da177e4SLinus Torvalds *r_via = chip; 11601da177e4SLinus Torvalds return 0; 11611da177e4SLinus Torvalds } 11621da177e4SLinus Torvalds 11631da177e4SLinus Torvalds 11641da177e4SLinus Torvalds static int __devinit snd_via82xx_probe(struct pci_dev *pci, 11651da177e4SLinus Torvalds const struct pci_device_id *pci_id) 11661da177e4SLinus Torvalds { 1167e437e3d7STakashi Iwai struct snd_card *card; 1168e437e3d7STakashi Iwai struct via82xx_modem *chip; 11691da177e4SLinus Torvalds int chip_type = 0, card_type; 11701da177e4SLinus Torvalds unsigned int i; 11711da177e4SLinus Torvalds int err; 11721da177e4SLinus Torvalds 1173b7fe4622SClemens Ladisch card = snd_card_new(index, id, THIS_MODULE, 0); 11741da177e4SLinus Torvalds if (card == NULL) 11751da177e4SLinus Torvalds return -ENOMEM; 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds card_type = pci_id->driver_data; 11781da177e4SLinus Torvalds switch (card_type) { 11791da177e4SLinus Torvalds case TYPE_CARD_VIA82XX_MODEM: 11801da177e4SLinus Torvalds strcpy(card->driver, "VIA82XX-MODEM"); 11811da177e4SLinus Torvalds sprintf(card->shortname, "VIA 82XX modem"); 11821da177e4SLinus Torvalds break; 11831da177e4SLinus Torvalds default: 11841da177e4SLinus Torvalds snd_printk(KERN_ERR "invalid card type %d\n", card_type); 11851da177e4SLinus Torvalds err = -EINVAL; 11861da177e4SLinus Torvalds goto __error; 11871da177e4SLinus Torvalds } 11881da177e4SLinus Torvalds 118944c10138SAuke Kok if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision, 1190b7fe4622SClemens Ladisch ac97_clock, &chip)) < 0) 11911da177e4SLinus Torvalds goto __error; 119257feb835STakashi Iwai card->private_data = chip; 11931da177e4SLinus Torvalds if ((err = snd_via82xx_mixer_new(chip)) < 0) 11941da177e4SLinus Torvalds goto __error; 11951da177e4SLinus Torvalds 11961da177e4SLinus Torvalds if ((err = snd_via686_pcm_new(chip)) < 0 ) 11971da177e4SLinus Torvalds goto __error; 11981da177e4SLinus Torvalds 11991da177e4SLinus Torvalds /* disable interrupts */ 12001da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 12011da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 12021da177e4SLinus Torvalds 12031da177e4SLinus Torvalds sprintf(card->longname, "%s at 0x%lx, irq %d", 12041da177e4SLinus Torvalds card->shortname, chip->port, chip->irq); 12051da177e4SLinus Torvalds 12061da177e4SLinus Torvalds snd_via82xx_proc_init(chip); 12071da177e4SLinus Torvalds 12081da177e4SLinus Torvalds if ((err = snd_card_register(card)) < 0) { 12091da177e4SLinus Torvalds snd_card_free(card); 12101da177e4SLinus Torvalds return err; 12111da177e4SLinus Torvalds } 12121da177e4SLinus Torvalds pci_set_drvdata(pci, card); 12131da177e4SLinus Torvalds return 0; 12141da177e4SLinus Torvalds 12151da177e4SLinus Torvalds __error: 12161da177e4SLinus Torvalds snd_card_free(card); 12171da177e4SLinus Torvalds return err; 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds static void __devexit snd_via82xx_remove(struct pci_dev *pci) 12211da177e4SLinus Torvalds { 12221da177e4SLinus Torvalds snd_card_free(pci_get_drvdata(pci)); 12231da177e4SLinus Torvalds pci_set_drvdata(pci, NULL); 12241da177e4SLinus Torvalds } 12251da177e4SLinus Torvalds 12261da177e4SLinus Torvalds static struct pci_driver driver = { 12271da177e4SLinus Torvalds .name = "VIA 82xx Modem", 12281da177e4SLinus Torvalds .id_table = snd_via82xx_modem_ids, 12291da177e4SLinus Torvalds .probe = snd_via82xx_probe, 12301da177e4SLinus Torvalds .remove = __devexit_p(snd_via82xx_remove), 123157feb835STakashi Iwai #ifdef CONFIG_PM 123257feb835STakashi Iwai .suspend = snd_via82xx_suspend, 123357feb835STakashi Iwai .resume = snd_via82xx_resume, 123457feb835STakashi Iwai #endif 12351da177e4SLinus Torvalds }; 12361da177e4SLinus Torvalds 12371da177e4SLinus Torvalds static int __init alsa_card_via82xx_init(void) 12381da177e4SLinus Torvalds { 123901d25d46STakashi Iwai return pci_register_driver(&driver); 12401da177e4SLinus Torvalds } 12411da177e4SLinus Torvalds 12421da177e4SLinus Torvalds static void __exit alsa_card_via82xx_exit(void) 12431da177e4SLinus Torvalds { 12441da177e4SLinus Torvalds pci_unregister_driver(&driver); 12451da177e4SLinus Torvalds } 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds module_init(alsa_card_via82xx_init) 12481da177e4SLinus Torvalds module_exit(alsa_card_via82xx_exit) 1249