11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * ALSA modem driver for VIA VT82xx (South Bridge) 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * VT82C686A/B/C, VT8233A/C, VT8235 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (c) 2000 Jaroslav Kysela <perex@suse.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 <sound/driver.h> 351da177e4SLinus Torvalds #include <asm/io.h> 361da177e4SLinus Torvalds #include <linux/delay.h> 371da177e4SLinus Torvalds #include <linux/interrupt.h> 381da177e4SLinus Torvalds #include <linux/init.h> 391da177e4SLinus Torvalds #include <linux/pci.h> 401da177e4SLinus Torvalds #include <linux/slab.h> 411da177e4SLinus Torvalds #include <linux/moduleparam.h> 421da177e4SLinus Torvalds #include <sound/core.h> 431da177e4SLinus Torvalds #include <sound/pcm.h> 441da177e4SLinus Torvalds #include <sound/pcm_params.h> 451da177e4SLinus Torvalds #include <sound/info.h> 461da177e4SLinus Torvalds #include <sound/ac97_codec.h> 471da177e4SLinus Torvalds #include <sound/initval.h> 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds #if 0 501da177e4SLinus Torvalds #define POINTER_DEBUG 511da177e4SLinus Torvalds #endif 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); 541da177e4SLinus Torvalds MODULE_DESCRIPTION("VIA VT82xx modem"); 551da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 561da177e4SLinus Torvalds MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C modem,pci}}"); 571da177e4SLinus Torvalds 58b7fe4622SClemens Ladisch static int index = -2; /* Exclude the first card */ 59b7fe4622SClemens Ladisch static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ 60b7fe4622SClemens Ladisch static int ac97_clock = 48000; 611da177e4SLinus Torvalds 62b7fe4622SClemens Ladisch module_param(index, int, 0444); 631da177e4SLinus Torvalds MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge."); 64b7fe4622SClemens Ladisch module_param(id, charp, 0444); 651da177e4SLinus Torvalds MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge."); 66b7fe4622SClemens Ladisch module_param(ac97_clock, int, 0444); 671da177e4SLinus Torvalds MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); 681da177e4SLinus Torvalds 692b3e584bSTakashi Iwai /* just for backward compatibility */ 702b3e584bSTakashi Iwai static int enable; 712b3e584bSTakashi Iwai module_param(enable, int, 0444); 722b3e584bSTakashi Iwai 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds /* 751da177e4SLinus Torvalds * Direct registers 761da177e4SLinus Torvalds */ 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds #define VIAREG(via, x) ((via)->port + VIA_REG_##x) 791da177e4SLinus Torvalds #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x) 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds /* common offsets */ 821da177e4SLinus Torvalds #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */ 831da177e4SLinus Torvalds #define VIA_REG_STAT_ACTIVE 0x80 /* RO */ 841da177e4SLinus Torvalds #define VIA_REG_STAT_PAUSED 0x40 /* RO */ 851da177e4SLinus Torvalds #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */ 861da177e4SLinus Torvalds #define VIA_REG_STAT_STOPPED 0x04 /* RWC */ 871da177e4SLinus Torvalds #define VIA_REG_STAT_EOL 0x02 /* RWC */ 881da177e4SLinus Torvalds #define VIA_REG_STAT_FLAG 0x01 /* RWC */ 891da177e4SLinus Torvalds #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */ 901da177e4SLinus Torvalds #define VIA_REG_CTRL_START 0x80 /* WO */ 911da177e4SLinus Torvalds #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */ 921da177e4SLinus Torvalds #define VIA_REG_CTRL_AUTOSTART 0x20 931da177e4SLinus Torvalds #define VIA_REG_CTRL_PAUSE 0x08 /* RW */ 941da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_STOP 0x04 951da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_EOL 0x02 961da177e4SLinus Torvalds #define VIA_REG_CTRL_INT_FLAG 0x01 971da177e4SLinus Torvalds #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */ 981da177e4SLinus Torvalds #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART) 991da177e4SLinus Torvalds #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */ 1001da177e4SLinus Torvalds #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */ 1011da177e4SLinus Torvalds #define VIA_REG_TYPE_16BIT 0x20 /* RW */ 1021da177e4SLinus Torvalds #define VIA_REG_TYPE_STEREO 0x10 /* RW */ 1031da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LLINE 0x00 1041da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LSAMPLE 0x04 1051da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_LESSONE 0x08 1061da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_MASK 0x0c 1071da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_EOL 0x02 1081da177e4SLinus Torvalds #define VIA_REG_TYPE_INT_FLAG 0x01 1091da177e4SLinus Torvalds #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */ 1101da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */ 1111da177e4SLinus Torvalds #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */ 1121da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */ 1131da177e4SLinus Torvalds #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */ 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds #define DEFINE_VIA_REGSET(name,val) \ 1161da177e4SLinus Torvalds enum {\ 1171da177e4SLinus Torvalds VIA_REG_##name##_STATUS = (val),\ 1181da177e4SLinus Torvalds VIA_REG_##name##_CONTROL = (val) + 0x01,\ 1191da177e4SLinus Torvalds VIA_REG_##name##_TYPE = (val) + 0x02,\ 1201da177e4SLinus Torvalds VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\ 1211da177e4SLinus Torvalds VIA_REG_##name##_CURR_PTR = (val) + 0x04,\ 1221da177e4SLinus Torvalds VIA_REG_##name##_STOP_IDX = (val) + 0x08,\ 1231da177e4SLinus Torvalds VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\ 1241da177e4SLinus Torvalds } 1251da177e4SLinus Torvalds 1261da177e4SLinus Torvalds /* modem block */ 1271da177e4SLinus Torvalds DEFINE_VIA_REGSET(MO, 0x40); 1281da177e4SLinus Torvalds DEFINE_VIA_REGSET(MI, 0x50); 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds /* AC'97 */ 1311da177e4SLinus Torvalds #define VIA_REG_AC97 0x80 /* dword */ 1321da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_MASK (3<<30) 1331da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_SHIFT 30 1341da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00 1351da177e4SLinus Torvalds #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01 1361da177e4SLinus Torvalds #define VIA_REG_AC97_SECONDARY_VALID (1<<27) 1371da177e4SLinus Torvalds #define VIA_REG_AC97_PRIMARY_VALID (1<<25) 1381da177e4SLinus Torvalds #define VIA_REG_AC97_BUSY (1<<24) 1391da177e4SLinus Torvalds #define VIA_REG_AC97_READ (1<<23) 1401da177e4SLinus Torvalds #define VIA_REG_AC97_CMD_SHIFT 16 1411da177e4SLinus Torvalds #define VIA_REG_AC97_CMD_MASK 0x7e 1421da177e4SLinus Torvalds #define VIA_REG_AC97_DATA_SHIFT 0 1431da177e4SLinus Torvalds #define VIA_REG_AC97_DATA_MASK 0xffff 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds #define VIA_REG_SGD_SHADOW 0x84 /* dword */ 1461da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_FLAG (1<<0) 1471da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_FLAG (1<<1) 1481da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_FLAG (1<<2) 1491da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_EOL (1<<4) 1501da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_EOL (1<<5) 1511da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_EOL (1<<6) 1521da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_STOP (1<<8) 1531da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_STOP (1<<9) 1541da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_STOP (1<<10) 1551da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12) 1561da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13) 1571da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14) 1581da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_FLAG (1<<16) 1591da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_FLAG (1<<17) 1601da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_EOL (1<<20) 1611da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_EOL (1<<21) 1621da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_STOP (1<<24) 1631da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_STOP (1<<25) 1641da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MR_ACTIVE (1<<28) 1651da177e4SLinus Torvalds #define VIA_REG_SGD_STAT_MW_ACTIVE (1<<29) 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds #define VIA_REG_GPI_STATUS 0x88 1681da177e4SLinus Torvalds #define VIA_REG_GPI_INTR 0x8c 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds #define VIA_TBL_BIT_FLAG 0x40000000 1711da177e4SLinus Torvalds #define VIA_TBL_BIT_EOL 0x80000000 1721da177e4SLinus Torvalds 1731da177e4SLinus Torvalds /* pci space */ 1741da177e4SLinus Torvalds #define VIA_ACLINK_STAT 0x40 1751da177e4SLinus Torvalds #define VIA_ACLINK_C11_READY 0x20 1761da177e4SLinus Torvalds #define VIA_ACLINK_C10_READY 0x10 1771da177e4SLinus Torvalds #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */ 1781da177e4SLinus Torvalds #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */ 1791da177e4SLinus Torvalds #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */ 1801da177e4SLinus Torvalds #define VIA_ACLINK_CTRL 0x41 1811da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */ 1821da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */ 1831da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */ 1841da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */ 1851da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */ 1861da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */ 1871da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */ 1881da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */ 1891da177e4SLinus Torvalds #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\ 1901da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET|\ 1911da177e4SLinus Torvalds VIA_ACLINK_CTRL_PCM) 1921da177e4SLinus Torvalds #define VIA_FUNC_ENABLE 0x42 1931da177e4SLinus Torvalds #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */ 1941da177e4SLinus Torvalds #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */ 1951da177e4SLinus Torvalds #define VIA_FUNC_RX2C_WRITE 0x20 1961da177e4SLinus Torvalds #define VIA_FUNC_SB_FIFO_EMPTY 0x10 1971da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_GAME 0x08 1981da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_FM 0x04 1991da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_MIDI 0x02 2001da177e4SLinus Torvalds #define VIA_FUNC_ENABLE_SB 0x01 2011da177e4SLinus Torvalds #define VIA_PNP_CONTROL 0x43 2021da177e4SLinus Torvalds #define VIA_MC97_CTRL 0x44 2031da177e4SLinus Torvalds #define VIA_MC97_CTRL_ENABLE 0x80 2041da177e4SLinus Torvalds #define VIA_MC97_CTRL_SECONDARY 0x40 2051da177e4SLinus Torvalds #define VIA_MC97_CTRL_INIT (VIA_MC97_CTRL_ENABLE|\ 2061da177e4SLinus Torvalds VIA_MC97_CTRL_SECONDARY) 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds 2091da177e4SLinus Torvalds typedef struct _snd_via82xx_modem via82xx_t; 2101da177e4SLinus Torvalds typedef struct via_dev viadev_t; 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds /* 2131da177e4SLinus Torvalds * pcm stream 2141da177e4SLinus Torvalds */ 2151da177e4SLinus Torvalds 2161da177e4SLinus Torvalds struct snd_via_sg_table { 2171da177e4SLinus Torvalds unsigned int offset; 2181da177e4SLinus Torvalds unsigned int size; 2191da177e4SLinus Torvalds } ; 2201da177e4SLinus Torvalds 2211da177e4SLinus Torvalds #define VIA_TABLE_SIZE 255 2221da177e4SLinus Torvalds 2231da177e4SLinus Torvalds struct via_dev { 2241da177e4SLinus Torvalds unsigned int reg_offset; 2251da177e4SLinus Torvalds unsigned long port; 2261da177e4SLinus Torvalds int direction; /* playback = 0, capture = 1 */ 2271da177e4SLinus Torvalds snd_pcm_substream_t *substream; 2281da177e4SLinus Torvalds int running; 2291da177e4SLinus Torvalds unsigned int tbl_entries; /* # descriptors */ 2301da177e4SLinus Torvalds struct snd_dma_buffer table; 2311da177e4SLinus Torvalds struct snd_via_sg_table *idx_table; 2321da177e4SLinus Torvalds /* for recovery from the unexpected pointer */ 2331da177e4SLinus Torvalds unsigned int lastpos; 2341da177e4SLinus Torvalds unsigned int bufsize; 2351da177e4SLinus Torvalds unsigned int bufsize2; 2361da177e4SLinus Torvalds }; 2371da177e4SLinus Torvalds 2381da177e4SLinus Torvalds enum { TYPE_CARD_VIA82XX_MODEM = 1 }; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds #define VIA_MAX_MODEM_DEVS 2 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds struct _snd_via82xx_modem { 2431da177e4SLinus Torvalds int irq; 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds unsigned long port; 2461da177e4SLinus Torvalds 2471da177e4SLinus Torvalds unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */ 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds struct pci_dev *pci; 2501da177e4SLinus Torvalds snd_card_t *card; 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds unsigned int num_devs; 2531da177e4SLinus Torvalds unsigned int playback_devno, capture_devno; 2541da177e4SLinus Torvalds viadev_t devs[VIA_MAX_MODEM_DEVS]; 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvalds snd_pcm_t *pcms[2]; 2571da177e4SLinus Torvalds 2581da177e4SLinus Torvalds ac97_bus_t *ac97_bus; 2591da177e4SLinus Torvalds ac97_t *ac97; 2601da177e4SLinus Torvalds unsigned int ac97_clock; 2611da177e4SLinus Torvalds unsigned int ac97_secondary; /* secondary AC'97 codec is present */ 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds spinlock_t reg_lock; 2641da177e4SLinus Torvalds snd_info_entry_t *proc_entry; 2651da177e4SLinus Torvalds }; 2661da177e4SLinus Torvalds 2671da177e4SLinus Torvalds static struct pci_device_id snd_via82xx_modem_ids[] = { 2681da177e4SLinus Torvalds { 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, }, 2691da177e4SLinus Torvalds { 0, } 2701da177e4SLinus Torvalds }; 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids); 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds /* 2751da177e4SLinus Torvalds */ 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds /* 2781da177e4SLinus Torvalds * allocate and initialize the descriptor buffers 2791da177e4SLinus Torvalds * periods = number of periods 2801da177e4SLinus Torvalds * fragsize = period size in bytes 2811da177e4SLinus Torvalds */ 2821da177e4SLinus Torvalds static int build_via_table(viadev_t *dev, snd_pcm_substream_t *substream, 2831da177e4SLinus Torvalds struct pci_dev *pci, 2841da177e4SLinus Torvalds unsigned int periods, unsigned int fragsize) 2851da177e4SLinus Torvalds { 2861da177e4SLinus Torvalds unsigned int i, idx, ofs, rest; 2871da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 2881da177e4SLinus Torvalds struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); 2891da177e4SLinus Torvalds 2901da177e4SLinus Torvalds if (dev->table.area == NULL) { 2911da177e4SLinus Torvalds /* the start of each lists must be aligned to 8 bytes, 2921da177e4SLinus Torvalds * but the kernel pages are much bigger, so we don't care 2931da177e4SLinus Torvalds */ 2941da177e4SLinus Torvalds if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 2951da177e4SLinus Torvalds PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), 2961da177e4SLinus Torvalds &dev->table) < 0) 2971da177e4SLinus Torvalds return -ENOMEM; 2981da177e4SLinus Torvalds } 2991da177e4SLinus Torvalds if (! dev->idx_table) { 3001da177e4SLinus Torvalds dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL); 3011da177e4SLinus Torvalds if (! dev->idx_table) 3021da177e4SLinus Torvalds return -ENOMEM; 3031da177e4SLinus Torvalds } 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds /* fill the entries */ 3061da177e4SLinus Torvalds idx = 0; 3071da177e4SLinus Torvalds ofs = 0; 3081da177e4SLinus Torvalds for (i = 0; i < periods; i++) { 3091da177e4SLinus Torvalds rest = fragsize; 3101da177e4SLinus Torvalds /* fill descriptors for a period. 3111da177e4SLinus Torvalds * a period can be split to several descriptors if it's 3121da177e4SLinus Torvalds * over page boundary. 3131da177e4SLinus Torvalds */ 3141da177e4SLinus Torvalds do { 3151da177e4SLinus Torvalds unsigned int r; 3161da177e4SLinus Torvalds unsigned int flag; 3171da177e4SLinus Torvalds 3181da177e4SLinus Torvalds if (idx >= VIA_TABLE_SIZE) { 3191da177e4SLinus Torvalds snd_printk(KERN_ERR "via82xx: too much table size!\n"); 3201da177e4SLinus Torvalds return -EINVAL; 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs)); 3231da177e4SLinus Torvalds r = PAGE_SIZE - (ofs % PAGE_SIZE); 3241da177e4SLinus Torvalds if (rest < r) 3251da177e4SLinus Torvalds r = rest; 3261da177e4SLinus Torvalds rest -= r; 3271da177e4SLinus Torvalds if (! rest) { 3281da177e4SLinus Torvalds if (i == periods - 1) 3291da177e4SLinus Torvalds flag = VIA_TBL_BIT_EOL; /* buffer boundary */ 3301da177e4SLinus Torvalds else 3311da177e4SLinus Torvalds flag = VIA_TBL_BIT_FLAG; /* period boundary */ 3321da177e4SLinus Torvalds } else 3331da177e4SLinus Torvalds flag = 0; /* period continues to the next */ 3341da177e4SLinus Torvalds // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest); 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 3491da177e4SLinus Torvalds static int clean_via_table(viadev_t *dev, snd_pcm_substream_t *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 3651da177e4SLinus Torvalds static inline unsigned int snd_via82xx_codec_xread(via82xx_t *chip) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds return inl(VIAREG(chip, AC97)); 3681da177e4SLinus Torvalds } 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds static inline void snd_via82xx_codec_xwrite(via82xx_t *chip, unsigned int val) 3711da177e4SLinus Torvalds { 3721da177e4SLinus Torvalds outl(val, VIAREG(chip, AC97)); 3731da177e4SLinus Torvalds } 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds static int snd_via82xx_codec_ready(via82xx_t *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 } 3851da177e4SLinus Torvalds snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via82xx_codec_xread(chip)); 3861da177e4SLinus Torvalds return -EIO; 3871da177e4SLinus Torvalds } 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds static int snd_via82xx_codec_valid(via82xx_t *chip, int secondary) 3901da177e4SLinus Torvalds { 3911da177e4SLinus Torvalds unsigned int timeout = 1000; /* 1ms */ 3921da177e4SLinus Torvalds unsigned int val, val1; 3931da177e4SLinus Torvalds unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : 3941da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID; 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds while (timeout-- > 0) { 3971da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 3981da177e4SLinus Torvalds val1 = val & (VIA_REG_AC97_BUSY | stat); 3991da177e4SLinus Torvalds if (val1 == stat) 4001da177e4SLinus Torvalds return val & 0xffff; 4011da177e4SLinus Torvalds udelay(1); 4021da177e4SLinus Torvalds } 4031da177e4SLinus Torvalds return -EIO; 4041da177e4SLinus Torvalds } 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds static void snd_via82xx_codec_wait(ac97_t *ac97) 4071da177e4SLinus Torvalds { 4081da177e4SLinus Torvalds via82xx_t *chip = ac97->private_data; 4091da177e4SLinus Torvalds int err; 4101da177e4SLinus Torvalds err = snd_via82xx_codec_ready(chip, ac97->num); 4111da177e4SLinus Torvalds /* here we need to wait fairly for long time.. */ 412ef21ca24SNishanth Aravamudan msleep(500); 4131da177e4SLinus Torvalds } 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds static void snd_via82xx_codec_write(ac97_t *ac97, 4161da177e4SLinus Torvalds unsigned short reg, 4171da177e4SLinus Torvalds unsigned short val) 4181da177e4SLinus Torvalds { 4191da177e4SLinus Torvalds via82xx_t *chip = ac97->private_data; 4201da177e4SLinus Torvalds unsigned int xval; 42183a5b72aSSasha Khapyorsky if(reg == AC97_GPIO_STATUS) { 42283a5b72aSSasha Khapyorsky outl(val, VIAREG(chip, GPI_STATUS)); 42383a5b72aSSasha Khapyorsky return; 42483a5b72aSSasha Khapyorsky } 4251da177e4SLinus Torvalds xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; 4261da177e4SLinus Torvalds xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; 4271da177e4SLinus Torvalds xval |= reg << VIA_REG_AC97_CMD_SHIFT; 4281da177e4SLinus Torvalds xval |= val << VIA_REG_AC97_DATA_SHIFT; 4291da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4301da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, ac97->num); 4311da177e4SLinus Torvalds } 4321da177e4SLinus Torvalds 4331da177e4SLinus Torvalds static unsigned short snd_via82xx_codec_read(ac97_t *ac97, unsigned short reg) 4341da177e4SLinus Torvalds { 4351da177e4SLinus Torvalds via82xx_t *chip = ac97->private_data; 4361da177e4SLinus Torvalds unsigned int xval, val = 0xffff; 4371da177e4SLinus Torvalds int again = 0; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT; 4401da177e4SLinus Torvalds xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID; 4411da177e4SLinus Torvalds xval |= VIA_REG_AC97_READ; 4421da177e4SLinus Torvalds xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT; 4431da177e4SLinus Torvalds while (1) { 4441da177e4SLinus Torvalds if (again++ > 3) { 4451da177e4SLinus Torvalds snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", ac97->num, snd_via82xx_codec_xread(chip)); 4461da177e4SLinus Torvalds return 0xffff; 4471da177e4SLinus Torvalds } 4481da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4491da177e4SLinus Torvalds udelay (20); 4501da177e4SLinus Torvalds if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { 4511da177e4SLinus Torvalds udelay(25); 4521da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 4531da177e4SLinus Torvalds break; 4541da177e4SLinus Torvalds } 4551da177e4SLinus Torvalds } 4561da177e4SLinus Torvalds return val & 0xffff; 4571da177e4SLinus Torvalds } 4581da177e4SLinus Torvalds 4591da177e4SLinus Torvalds static void snd_via82xx_channel_reset(via82xx_t *chip, viadev_t *viadev) 4601da177e4SLinus Torvalds { 4611da177e4SLinus Torvalds outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, 4621da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_CONTROL)); 4631da177e4SLinus Torvalds inb(VIADEV_REG(viadev, OFFSET_CONTROL)); 4641da177e4SLinus Torvalds udelay(50); 4651da177e4SLinus Torvalds /* disable interrupts */ 4661da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL)); 4671da177e4SLinus Torvalds /* clear interrupts */ 4681da177e4SLinus Torvalds outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS)); 4691da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */ 4701da177e4SLinus Torvalds // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR)); 4711da177e4SLinus Torvalds viadev->lastpos = 0; 4721da177e4SLinus Torvalds } 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds 4751da177e4SLinus Torvalds /* 4761da177e4SLinus Torvalds * Interrupt handler 4771da177e4SLinus Torvalds */ 4781da177e4SLinus Torvalds 4791da177e4SLinus Torvalds static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id, struct pt_regs *regs) 4801da177e4SLinus Torvalds { 4811da177e4SLinus Torvalds via82xx_t *chip = dev_id; 4821da177e4SLinus Torvalds unsigned int status; 4831da177e4SLinus Torvalds unsigned int i; 4841da177e4SLinus Torvalds 4851da177e4SLinus Torvalds status = inl(VIAREG(chip, SGD_SHADOW)); 4861da177e4SLinus Torvalds if (! (status & chip->intr_mask)) { 4871da177e4SLinus Torvalds return IRQ_NONE; 4881da177e4SLinus Torvalds } 4891da177e4SLinus Torvalds // _skip_sgd: 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds /* check status for each stream */ 4921da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 4931da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) { 4941da177e4SLinus Torvalds viadev_t *viadev = &chip->devs[i]; 4951da177e4SLinus Torvalds unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); 4961da177e4SLinus Torvalds c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED); 4971da177e4SLinus Torvalds if (! c_status) 4981da177e4SLinus Torvalds continue; 4991da177e4SLinus Torvalds if (viadev->substream && viadev->running) { 5001da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5011da177e4SLinus Torvalds snd_pcm_period_elapsed(viadev->substream); 5021da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 5031da177e4SLinus Torvalds } 5041da177e4SLinus Torvalds outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */ 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5071da177e4SLinus Torvalds return IRQ_HANDLED; 5081da177e4SLinus Torvalds } 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds /* 5111da177e4SLinus Torvalds * PCM callbacks 5121da177e4SLinus Torvalds */ 5131da177e4SLinus Torvalds 5141da177e4SLinus Torvalds /* 5151da177e4SLinus Torvalds * trigger callback 5161da177e4SLinus Torvalds */ 5171da177e4SLinus Torvalds static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd) 5181da177e4SLinus Torvalds { 5191da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 5201da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 5211da177e4SLinus Torvalds unsigned char val = 0; 5221da177e4SLinus Torvalds 5231da177e4SLinus Torvalds switch (cmd) { 5241da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_START: 52541e4845cSJaroslav Kysela case SNDRV_PCM_TRIGGER_SUSPEND: 5261da177e4SLinus Torvalds val |= VIA_REG_CTRL_START; 5271da177e4SLinus Torvalds viadev->running = 1; 5281da177e4SLinus Torvalds break; 5291da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_STOP: 5301da177e4SLinus Torvalds val = VIA_REG_CTRL_TERMINATE; 5311da177e4SLinus Torvalds viadev->running = 0; 5321da177e4SLinus Torvalds break; 5331da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 5341da177e4SLinus Torvalds val |= VIA_REG_CTRL_PAUSE; 5351da177e4SLinus Torvalds viadev->running = 0; 5361da177e4SLinus Torvalds break; 5371da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 5381da177e4SLinus Torvalds viadev->running = 1; 5391da177e4SLinus Torvalds break; 5401da177e4SLinus Torvalds default: 5411da177e4SLinus Torvalds return -EINVAL; 5421da177e4SLinus Torvalds } 5431da177e4SLinus Torvalds outb(val, VIADEV_REG(viadev, OFFSET_CONTROL)); 5441da177e4SLinus Torvalds if (cmd == SNDRV_PCM_TRIGGER_STOP) 5451da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 5461da177e4SLinus Torvalds return 0; 5471da177e4SLinus Torvalds } 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds /* 5501da177e4SLinus Torvalds * pointer callbacks 5511da177e4SLinus Torvalds */ 5521da177e4SLinus Torvalds 5531da177e4SLinus Torvalds /* 5541da177e4SLinus Torvalds * calculate the linear position at the given sg-buffer index and the rest count 5551da177e4SLinus Torvalds */ 5561da177e4SLinus Torvalds 5571da177e4SLinus Torvalds #define check_invalid_pos(viadev,pos) \ 5581da177e4SLinus Torvalds ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2)) 5591da177e4SLinus Torvalds 5601da177e4SLinus Torvalds static inline unsigned int calc_linear_pos(viadev_t *viadev, unsigned int idx, unsigned int count) 5611da177e4SLinus Torvalds { 5621da177e4SLinus Torvalds unsigned int size, res; 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds size = viadev->idx_table[idx].size; 5651da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size - count; 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds /* check the validity of the calculated position */ 5681da177e4SLinus Torvalds if (size < count) { 5691da177e4SLinus Torvalds snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", (int)size, (int)count); 5701da177e4SLinus Torvalds res = viadev->lastpos; 5711da177e4SLinus Torvalds } else if (check_invalid_pos(viadev, res)) { 5721da177e4SLinus Torvalds #ifdef POINTER_DEBUG 5731da177e4SLinus Torvalds printk("fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, viadev->bufsize2, viadev->idx_table[idx].offset, viadev->idx_table[idx].size, count); 5741da177e4SLinus Torvalds #endif 5751da177e4SLinus Torvalds if (count && size < count) { 5761da177e4SLinus Torvalds snd_printd(KERN_ERR "invalid via82xx_cur_ptr, using last valid pointer\n"); 5771da177e4SLinus Torvalds res = viadev->lastpos; 5781da177e4SLinus Torvalds } else { 5791da177e4SLinus Torvalds if (! count) 5801da177e4SLinus Torvalds /* bogus count 0 on the DMA boundary? */ 5811da177e4SLinus Torvalds res = viadev->idx_table[idx].offset; 5821da177e4SLinus Torvalds else 5831da177e4SLinus Torvalds /* count register returns full size when end of buffer is reached */ 5841da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size; 5851da177e4SLinus Torvalds if (check_invalid_pos(viadev, res)) { 5861da177e4SLinus Torvalds snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), using last valid pointer\n"); 5871da177e4SLinus Torvalds res = viadev->lastpos; 5881da177e4SLinus Torvalds } 5891da177e4SLinus Torvalds } 5901da177e4SLinus Torvalds } 5911da177e4SLinus Torvalds viadev->lastpos = res; /* remember the last position */ 5921da177e4SLinus Torvalds if (res >= viadev->bufsize) 5931da177e4SLinus Torvalds res -= viadev->bufsize; 5941da177e4SLinus Torvalds return res; 5951da177e4SLinus Torvalds } 5961da177e4SLinus Torvalds 5971da177e4SLinus Torvalds /* 5981da177e4SLinus Torvalds * get the current pointer on via686 5991da177e4SLinus Torvalds */ 6001da177e4SLinus Torvalds static snd_pcm_uframes_t snd_via686_pcm_pointer(snd_pcm_substream_t *substream) 6011da177e4SLinus Torvalds { 6021da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 6031da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 6041da177e4SLinus Torvalds unsigned int idx, ptr, count, res; 6051da177e4SLinus Torvalds 6061da177e4SLinus Torvalds snd_assert(viadev->tbl_entries, return 0); 6071da177e4SLinus Torvalds if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE)) 6081da177e4SLinus Torvalds return 0; 6091da177e4SLinus Torvalds 6101da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 6111da177e4SLinus Torvalds count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff; 6121da177e4SLinus Torvalds /* The via686a does not have the current index register, 6131da177e4SLinus Torvalds * so we need to calculate the index from CURR_PTR. 6141da177e4SLinus Torvalds */ 6151da177e4SLinus Torvalds ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR)); 6161da177e4SLinus Torvalds if (ptr <= (unsigned int)viadev->table.addr) 6171da177e4SLinus Torvalds idx = 0; 6181da177e4SLinus Torvalds else /* CURR_PTR holds the address + 8 */ 6191da177e4SLinus Torvalds idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries; 6201da177e4SLinus Torvalds res = calc_linear_pos(viadev, idx, count); 6211da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 6221da177e4SLinus Torvalds 6231da177e4SLinus Torvalds return bytes_to_frames(substream->runtime, res); 6241da177e4SLinus Torvalds } 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds /* 6271da177e4SLinus Torvalds * hw_params callback: 6281da177e4SLinus Torvalds * allocate the buffer and build up the buffer description table 6291da177e4SLinus Torvalds */ 6301da177e4SLinus Torvalds static int snd_via82xx_hw_params(snd_pcm_substream_t * substream, 6311da177e4SLinus Torvalds snd_pcm_hw_params_t * hw_params) 6321da177e4SLinus Torvalds { 6331da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 6341da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 6351da177e4SLinus Torvalds int err; 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 6381da177e4SLinus Torvalds if (err < 0) 6391da177e4SLinus Torvalds return err; 6401da177e4SLinus Torvalds err = build_via_table(viadev, substream, chip->pci, 6411da177e4SLinus Torvalds params_periods(hw_params), 6421da177e4SLinus Torvalds params_period_bytes(hw_params)); 6431da177e4SLinus Torvalds if (err < 0) 6441da177e4SLinus Torvalds return err; 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params)); 6471da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0); 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds return 0; 6501da177e4SLinus Torvalds } 6511da177e4SLinus Torvalds 6521da177e4SLinus Torvalds /* 6531da177e4SLinus Torvalds * hw_free callback: 6541da177e4SLinus Torvalds * clean up the buffer description table and release the buffer 6551da177e4SLinus Torvalds */ 6561da177e4SLinus Torvalds static int snd_via82xx_hw_free(snd_pcm_substream_t * substream) 6571da177e4SLinus Torvalds { 6581da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 6591da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 6601da177e4SLinus Torvalds 6611da177e4SLinus Torvalds clean_via_table(viadev, substream, chip->pci); 6621da177e4SLinus Torvalds snd_pcm_lib_free_pages(substream); 6631da177e4SLinus Torvalds return 0; 6641da177e4SLinus Torvalds } 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds 6671da177e4SLinus Torvalds /* 6681da177e4SLinus Torvalds * set up the table pointer 6691da177e4SLinus Torvalds */ 6701da177e4SLinus Torvalds static void snd_via82xx_set_table_ptr(via82xx_t *chip, viadev_t *viadev) 6711da177e4SLinus Torvalds { 6721da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6731da177e4SLinus Torvalds outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR)); 6741da177e4SLinus Torvalds udelay(20); 6751da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6761da177e4SLinus Torvalds } 6771da177e4SLinus Torvalds 6781da177e4SLinus Torvalds /* 6791da177e4SLinus Torvalds * prepare callback for playback and capture 6801da177e4SLinus Torvalds */ 6811da177e4SLinus Torvalds static int snd_via82xx_pcm_prepare(snd_pcm_substream_t *substream) 6821da177e4SLinus Torvalds { 6831da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 6841da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 6851da177e4SLinus Torvalds 6861da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 6871da177e4SLinus Torvalds /* this must be set after channel_reset */ 6881da177e4SLinus Torvalds snd_via82xx_set_table_ptr(chip, viadev); 6891da177e4SLinus Torvalds outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG, 6901da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_TYPE)); 6911da177e4SLinus Torvalds return 0; 6921da177e4SLinus Torvalds } 6931da177e4SLinus Torvalds 6941da177e4SLinus Torvalds /* 6951da177e4SLinus Torvalds * pcm hardware definition, identical for both playback and capture 6961da177e4SLinus Torvalds */ 6971da177e4SLinus Torvalds static snd_pcm_hardware_t snd_via82xx_hw = 6981da177e4SLinus Torvalds { 6991da177e4SLinus Torvalds .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 7001da177e4SLinus Torvalds SNDRV_PCM_INFO_BLOCK_TRANSFER | 7011da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP_VALID | 70241e4845cSJaroslav Kysela /* SNDRV_PCM_INFO_RESUME | */ 7031da177e4SLinus Torvalds SNDRV_PCM_INFO_PAUSE), 7041da177e4SLinus Torvalds .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 7051da177e4SLinus Torvalds .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, 7061da177e4SLinus Torvalds .rate_min = 8000, 7071da177e4SLinus Torvalds .rate_max = 16000, 7081da177e4SLinus Torvalds .channels_min = 1, 7091da177e4SLinus Torvalds .channels_max = 1, 7101da177e4SLinus Torvalds .buffer_bytes_max = 128 * 1024, 7111da177e4SLinus Torvalds .period_bytes_min = 32, 7121da177e4SLinus Torvalds .period_bytes_max = 128 * 1024, 7131da177e4SLinus Torvalds .periods_min = 2, 7141da177e4SLinus Torvalds .periods_max = VIA_TABLE_SIZE / 2, 7151da177e4SLinus Torvalds .fifo_size = 0, 7161da177e4SLinus Torvalds }; 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds 7191da177e4SLinus Torvalds /* 7201da177e4SLinus Torvalds * open callback skeleton 7211da177e4SLinus Torvalds */ 7221da177e4SLinus Torvalds static int snd_via82xx_modem_pcm_open(via82xx_t *chip, viadev_t *viadev, snd_pcm_substream_t * substream) 7231da177e4SLinus Torvalds { 7241da177e4SLinus Torvalds snd_pcm_runtime_t *runtime = substream->runtime; 7251da177e4SLinus Torvalds int err; 7261da177e4SLinus Torvalds static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; 7271da177e4SLinus Torvalds static snd_pcm_hw_constraint_list_t hw_constraints_rates = { 7281da177e4SLinus Torvalds .count = ARRAY_SIZE(rates), 7291da177e4SLinus Torvalds .list = rates, 7301da177e4SLinus Torvalds .mask = 0, 7311da177e4SLinus Torvalds }; 7321da177e4SLinus Torvalds 7331da177e4SLinus Torvalds runtime->hw = snd_via82xx_hw; 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates)) < 0) 7361da177e4SLinus Torvalds return err; 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds /* we may remove following constaint when we modify table entries 7391da177e4SLinus Torvalds in interrupt */ 7401da177e4SLinus Torvalds if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) 7411da177e4SLinus Torvalds return err; 7421da177e4SLinus Torvalds 7431da177e4SLinus Torvalds runtime->private_data = viadev; 7441da177e4SLinus Torvalds viadev->substream = substream; 7451da177e4SLinus Torvalds 7461da177e4SLinus Torvalds return 0; 7471da177e4SLinus Torvalds } 7481da177e4SLinus Torvalds 7491da177e4SLinus Torvalds 7501da177e4SLinus Torvalds /* 7511da177e4SLinus Torvalds * open callback for playback 7521da177e4SLinus Torvalds */ 7531da177e4SLinus Torvalds static int snd_via82xx_playback_open(snd_pcm_substream_t * substream) 7541da177e4SLinus Torvalds { 7551da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 7561da177e4SLinus Torvalds viadev_t *viadev = &chip->devs[chip->playback_devno + substream->number]; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7591da177e4SLinus Torvalds } 7601da177e4SLinus Torvalds 7611da177e4SLinus Torvalds /* 7621da177e4SLinus Torvalds * open callback for capture 7631da177e4SLinus Torvalds */ 7641da177e4SLinus Torvalds static int snd_via82xx_capture_open(snd_pcm_substream_t * substream) 7651da177e4SLinus Torvalds { 7661da177e4SLinus Torvalds via82xx_t *chip = snd_pcm_substream_chip(substream); 7671da177e4SLinus Torvalds viadev_t *viadev = &chip->devs[chip->capture_devno + substream->pcm->device]; 7681da177e4SLinus Torvalds 7691da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7701da177e4SLinus Torvalds } 7711da177e4SLinus Torvalds 7721da177e4SLinus Torvalds /* 7731da177e4SLinus Torvalds * close callback 7741da177e4SLinus Torvalds */ 7751da177e4SLinus Torvalds static int snd_via82xx_pcm_close(snd_pcm_substream_t * substream) 7761da177e4SLinus Torvalds { 7771da177e4SLinus Torvalds viadev_t *viadev = (viadev_t *)substream->runtime->private_data; 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds viadev->substream = NULL; 7801da177e4SLinus Torvalds return 0; 7811da177e4SLinus Torvalds } 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds 7841da177e4SLinus Torvalds /* via686 playback callbacks */ 7851da177e4SLinus Torvalds static snd_pcm_ops_t snd_via686_playback_ops = { 7861da177e4SLinus Torvalds .open = snd_via82xx_playback_open, 7871da177e4SLinus Torvalds .close = snd_via82xx_pcm_close, 7881da177e4SLinus Torvalds .ioctl = snd_pcm_lib_ioctl, 7891da177e4SLinus Torvalds .hw_params = snd_via82xx_hw_params, 7901da177e4SLinus Torvalds .hw_free = snd_via82xx_hw_free, 7911da177e4SLinus Torvalds .prepare = snd_via82xx_pcm_prepare, 79283a5b72aSSasha Khapyorsky .trigger = snd_via82xx_pcm_trigger, 7931da177e4SLinus Torvalds .pointer = snd_via686_pcm_pointer, 7941da177e4SLinus Torvalds .page = snd_pcm_sgbuf_ops_page, 7951da177e4SLinus Torvalds }; 7961da177e4SLinus Torvalds 7971da177e4SLinus Torvalds /* via686 capture callbacks */ 7981da177e4SLinus Torvalds static snd_pcm_ops_t snd_via686_capture_ops = { 7991da177e4SLinus Torvalds .open = snd_via82xx_capture_open, 8001da177e4SLinus Torvalds .close = snd_via82xx_pcm_close, 8011da177e4SLinus Torvalds .ioctl = snd_pcm_lib_ioctl, 8021da177e4SLinus Torvalds .hw_params = snd_via82xx_hw_params, 8031da177e4SLinus Torvalds .hw_free = snd_via82xx_hw_free, 8041da177e4SLinus Torvalds .prepare = snd_via82xx_pcm_prepare, 80583a5b72aSSasha Khapyorsky .trigger = snd_via82xx_pcm_trigger, 8061da177e4SLinus Torvalds .pointer = snd_via686_pcm_pointer, 8071da177e4SLinus Torvalds .page = snd_pcm_sgbuf_ops_page, 8081da177e4SLinus Torvalds }; 8091da177e4SLinus Torvalds 8101da177e4SLinus Torvalds 8111da177e4SLinus Torvalds static void init_viadev(via82xx_t *chip, int idx, unsigned int reg_offset, int direction) 8121da177e4SLinus Torvalds { 8131da177e4SLinus Torvalds chip->devs[idx].reg_offset = reg_offset; 8141da177e4SLinus Torvalds chip->devs[idx].direction = direction; 8151da177e4SLinus Torvalds chip->devs[idx].port = chip->port + reg_offset; 8161da177e4SLinus Torvalds } 8171da177e4SLinus Torvalds 8181da177e4SLinus Torvalds /* 8191da177e4SLinus Torvalds * create a pcm instance for via686a/b 8201da177e4SLinus Torvalds */ 8211da177e4SLinus Torvalds static int __devinit snd_via686_pcm_new(via82xx_t *chip) 8221da177e4SLinus Torvalds { 8231da177e4SLinus Torvalds snd_pcm_t *pcm; 8241da177e4SLinus Torvalds int err; 8251da177e4SLinus Torvalds 8261da177e4SLinus Torvalds chip->playback_devno = 0; 8271da177e4SLinus Torvalds chip->capture_devno = 1; 8281da177e4SLinus Torvalds chip->num_devs = 2; 8291da177e4SLinus Torvalds chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */ 8301da177e4SLinus Torvalds 8311da177e4SLinus Torvalds err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm); 8321da177e4SLinus Torvalds if (err < 0) 8331da177e4SLinus Torvalds return err; 8341da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops); 8351da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops); 8366632d198SSasha Khapyorsky pcm->dev_class = SNDRV_PCM_CLASS_MODEM; 8371da177e4SLinus Torvalds pcm->private_data = chip; 8381da177e4SLinus Torvalds strcpy(pcm->name, chip->card->shortname); 8391da177e4SLinus Torvalds chip->pcms[0] = pcm; 8401da177e4SLinus Torvalds init_viadev(chip, 0, VIA_REG_MO_STATUS, 0); 8411da177e4SLinus Torvalds init_viadev(chip, 1, VIA_REG_MI_STATUS, 1); 8421da177e4SLinus Torvalds 8431da177e4SLinus Torvalds if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 8441da177e4SLinus Torvalds snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0) 8451da177e4SLinus Torvalds return err; 8461da177e4SLinus Torvalds 8471da177e4SLinus Torvalds return 0; 8481da177e4SLinus Torvalds } 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds /* 8521da177e4SLinus Torvalds * Mixer part 8531da177e4SLinus Torvalds */ 8541da177e4SLinus Torvalds 8551da177e4SLinus Torvalds 8561da177e4SLinus Torvalds static void snd_via82xx_mixer_free_ac97_bus(ac97_bus_t *bus) 8571da177e4SLinus Torvalds { 8581da177e4SLinus Torvalds via82xx_t *chip = bus->private_data; 8591da177e4SLinus Torvalds chip->ac97_bus = NULL; 8601da177e4SLinus Torvalds } 8611da177e4SLinus Torvalds 8621da177e4SLinus Torvalds static void snd_via82xx_mixer_free_ac97(ac97_t *ac97) 8631da177e4SLinus Torvalds { 8641da177e4SLinus Torvalds via82xx_t *chip = ac97->private_data; 8651da177e4SLinus Torvalds chip->ac97 = NULL; 8661da177e4SLinus Torvalds } 8671da177e4SLinus Torvalds 8681da177e4SLinus Torvalds 8691da177e4SLinus Torvalds static int __devinit snd_via82xx_mixer_new(via82xx_t *chip) 8701da177e4SLinus Torvalds { 8711da177e4SLinus Torvalds ac97_template_t ac97; 8721da177e4SLinus Torvalds int err; 8731da177e4SLinus Torvalds static ac97_bus_ops_t ops = { 8741da177e4SLinus Torvalds .write = snd_via82xx_codec_write, 8751da177e4SLinus Torvalds .read = snd_via82xx_codec_read, 8761da177e4SLinus Torvalds .wait = snd_via82xx_codec_wait, 8771da177e4SLinus Torvalds }; 8781da177e4SLinus Torvalds 8791da177e4SLinus Torvalds if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0) 8801da177e4SLinus Torvalds return err; 8811da177e4SLinus Torvalds chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus; 8821da177e4SLinus Torvalds chip->ac97_bus->clock = chip->ac97_clock; 8831da177e4SLinus Torvalds 8841da177e4SLinus Torvalds memset(&ac97, 0, sizeof(ac97)); 8851da177e4SLinus Torvalds ac97.private_data = chip; 8861da177e4SLinus Torvalds ac97.private_free = snd_via82xx_mixer_free_ac97; 8871da177e4SLinus Torvalds ac97.pci = chip->pci; 8881da177e4SLinus Torvalds ac97.scaps = AC97_SCAP_SKIP_AUDIO; 8891da177e4SLinus Torvalds ac97.num = chip->ac97_secondary; 8901da177e4SLinus Torvalds 8911da177e4SLinus Torvalds if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) 8921da177e4SLinus Torvalds return err; 8931da177e4SLinus Torvalds 8941da177e4SLinus Torvalds return 0; 8951da177e4SLinus Torvalds } 8961da177e4SLinus Torvalds 8971da177e4SLinus Torvalds 8981da177e4SLinus Torvalds /* 8991da177e4SLinus Torvalds * proc interface 9001da177e4SLinus Torvalds */ 9011da177e4SLinus Torvalds static void snd_via82xx_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) 9021da177e4SLinus Torvalds { 9031da177e4SLinus Torvalds via82xx_t *chip = entry->private_data; 9041da177e4SLinus Torvalds int i; 9051da177e4SLinus Torvalds 9061da177e4SLinus Torvalds snd_iprintf(buffer, "%s\n\n", chip->card->longname); 9071da177e4SLinus Torvalds for (i = 0; i < 0xa0; i += 4) { 9081da177e4SLinus Torvalds snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i)); 9091da177e4SLinus Torvalds } 9101da177e4SLinus Torvalds } 9111da177e4SLinus Torvalds 9121da177e4SLinus Torvalds static void __devinit snd_via82xx_proc_init(via82xx_t *chip) 9131da177e4SLinus Torvalds { 9141da177e4SLinus Torvalds snd_info_entry_t *entry; 9151da177e4SLinus Torvalds 9161da177e4SLinus Torvalds if (! snd_card_proc_new(chip->card, "via82xx", &entry)) 9171da177e4SLinus Torvalds snd_info_set_text_ops(entry, chip, 1024, snd_via82xx_proc_read); 9181da177e4SLinus Torvalds } 9191da177e4SLinus Torvalds 9201da177e4SLinus Torvalds /* 9211da177e4SLinus Torvalds * 9221da177e4SLinus Torvalds */ 9231da177e4SLinus Torvalds 92458c1f8acSTakashi Iwai static int snd_via82xx_chip_init(via82xx_t *chip) 9251da177e4SLinus Torvalds { 9261da177e4SLinus Torvalds unsigned int val; 927ef21ca24SNishanth Aravamudan unsigned long end_time; 9281da177e4SLinus Torvalds unsigned char pval; 9291da177e4SLinus Torvalds 9301da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); 9311da177e4SLinus Torvalds if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) { 9321da177e4SLinus Torvalds pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT); 9331da177e4SLinus Torvalds udelay(100); 9341da177e4SLinus Torvalds } 9351da177e4SLinus Torvalds 9361da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9371da177e4SLinus Torvalds if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */ 9381da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC */ 9391da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9401da177e4SLinus Torvalds VIA_ACLINK_CTRL_ENABLE | 9411da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET | 9421da177e4SLinus Torvalds VIA_ACLINK_CTRL_SYNC); 9431da177e4SLinus Torvalds udelay(100); 9441da177e4SLinus Torvalds #if 1 /* FIXME: should we do full reset here for all chip models? */ 9451da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00); 9461da177e4SLinus Torvalds udelay(100); 9471da177e4SLinus Torvalds #else 9481da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ 9491da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9501da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC); 9511da177e4SLinus Torvalds udelay(2); 9521da177e4SLinus Torvalds #endif 9531da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9541da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9551da177e4SLinus Torvalds udelay(100); 9561da177e4SLinus Torvalds } 9571da177e4SLinus Torvalds 9581da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval); 9591da177e4SLinus Torvalds if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) { 9601da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9611da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9621da177e4SLinus Torvalds udelay(100); 9631da177e4SLinus Torvalds } 9641da177e4SLinus Torvalds 9651da177e4SLinus Torvalds /* wait until codec ready */ 966ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 9671da177e4SLinus Torvalds do { 9681da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9691da177e4SLinus Torvalds if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ 9701da177e4SLinus Torvalds break; 9711da177e4SLinus Torvalds set_current_state(TASK_UNINTERRUPTIBLE); 9721da177e4SLinus Torvalds schedule_timeout(1); 973ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 9741da177e4SLinus Torvalds 9751da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) 9761da177e4SLinus Torvalds snd_printk("AC'97 codec is not ready [0x%x]\n", val); 9771da177e4SLinus Torvalds 9781da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | 9791da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID | 9801da177e4SLinus Torvalds (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); 981ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 9821da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | 9831da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID | 9841da177e4SLinus Torvalds (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); 9851da177e4SLinus Torvalds do { 9861da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) { 9871da177e4SLinus Torvalds chip->ac97_secondary = 1; 9881da177e4SLinus Torvalds goto __ac97_ok2; 9891da177e4SLinus Torvalds } 9901da177e4SLinus Torvalds set_current_state(TASK_INTERRUPTIBLE); 9911da177e4SLinus Torvalds schedule_timeout(1); 992ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 9931da177e4SLinus Torvalds /* This is ok, the most of motherboards have only one codec */ 9941da177e4SLinus Torvalds 9951da177e4SLinus Torvalds __ac97_ok2: 9961da177e4SLinus Torvalds 9971da177e4SLinus Torvalds /* route FM trap to IRQ, disable FM trap */ 9981da177e4SLinus Torvalds // pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0); 9991da177e4SLinus Torvalds /* disable all GPI interrupts */ 10001da177e4SLinus Torvalds outl(0, VIAREG(chip, GPI_INTR)); 10011da177e4SLinus Torvalds 10021da177e4SLinus Torvalds return 0; 10031da177e4SLinus Torvalds } 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds #ifdef CONFIG_PM 10061da177e4SLinus Torvalds /* 10071da177e4SLinus Torvalds * power management 10081da177e4SLinus Torvalds */ 10091da177e4SLinus Torvalds static int snd_via82xx_suspend(snd_card_t *card, pm_message_t state) 10101da177e4SLinus Torvalds { 10111da177e4SLinus Torvalds via82xx_t *chip = card->pm_private_data; 10121da177e4SLinus Torvalds int i; 10131da177e4SLinus Torvalds 10141da177e4SLinus Torvalds for (i = 0; i < 2; i++) 10151da177e4SLinus Torvalds if (chip->pcms[i]) 10161da177e4SLinus Torvalds snd_pcm_suspend_all(chip->pcms[i]); 10171da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10181da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10191da177e4SLinus Torvalds synchronize_irq(chip->irq); 10201da177e4SLinus Torvalds snd_ac97_suspend(chip->ac97); 10211da177e4SLinus Torvalds pci_set_power_state(chip->pci, 3); 10221da177e4SLinus Torvalds pci_disable_device(chip->pci); 10231da177e4SLinus Torvalds return 0; 10241da177e4SLinus Torvalds } 10251da177e4SLinus Torvalds 10261da177e4SLinus Torvalds static int snd_via82xx_resume(snd_card_t *card) 10271da177e4SLinus Torvalds { 10281da177e4SLinus Torvalds via82xx_t *chip = card->pm_private_data; 10291da177e4SLinus Torvalds int i; 10301da177e4SLinus Torvalds 10311da177e4SLinus Torvalds pci_enable_device(chip->pci); 10321da177e4SLinus Torvalds pci_set_power_state(chip->pci, 0); 10331da177e4SLinus Torvalds pci_set_master(chip->pci); 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds snd_via82xx_chip_init(chip); 10361da177e4SLinus Torvalds 10371da177e4SLinus Torvalds snd_ac97_resume(chip->ac97); 10381da177e4SLinus Torvalds 10391da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10401da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10411da177e4SLinus Torvalds 10421da177e4SLinus Torvalds return 0; 10431da177e4SLinus Torvalds } 10441da177e4SLinus Torvalds #endif /* CONFIG_PM */ 10451da177e4SLinus Torvalds 10461da177e4SLinus Torvalds static int snd_via82xx_free(via82xx_t *chip) 10471da177e4SLinus Torvalds { 10481da177e4SLinus Torvalds unsigned int i; 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvalds if (chip->irq < 0) 10511da177e4SLinus Torvalds goto __end_hw; 10521da177e4SLinus Torvalds /* disable interrupts */ 10531da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10541da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10551da177e4SLinus Torvalds synchronize_irq(chip->irq); 10561da177e4SLinus Torvalds __end_hw: 10571da177e4SLinus Torvalds if (chip->irq >= 0) 10581da177e4SLinus Torvalds free_irq(chip->irq, (void *)chip); 10591da177e4SLinus Torvalds pci_release_regions(chip->pci); 10601da177e4SLinus Torvalds pci_disable_device(chip->pci); 10611da177e4SLinus Torvalds kfree(chip); 10621da177e4SLinus Torvalds return 0; 10631da177e4SLinus Torvalds } 10641da177e4SLinus Torvalds 10651da177e4SLinus Torvalds static int snd_via82xx_dev_free(snd_device_t *device) 10661da177e4SLinus Torvalds { 10671da177e4SLinus Torvalds via82xx_t *chip = device->device_data; 10681da177e4SLinus Torvalds return snd_via82xx_free(chip); 10691da177e4SLinus Torvalds } 10701da177e4SLinus Torvalds 10711da177e4SLinus Torvalds static int __devinit snd_via82xx_create(snd_card_t * card, 10721da177e4SLinus Torvalds struct pci_dev *pci, 10731da177e4SLinus Torvalds int chip_type, 10741da177e4SLinus Torvalds int revision, 10751da177e4SLinus Torvalds unsigned int ac97_clock, 10761da177e4SLinus Torvalds via82xx_t ** r_via) 10771da177e4SLinus Torvalds { 10781da177e4SLinus Torvalds via82xx_t *chip; 10791da177e4SLinus Torvalds int err; 10801da177e4SLinus Torvalds static snd_device_ops_t ops = { 10811da177e4SLinus Torvalds .dev_free = snd_via82xx_dev_free, 10821da177e4SLinus Torvalds }; 10831da177e4SLinus Torvalds 10841da177e4SLinus Torvalds if ((err = pci_enable_device(pci)) < 0) 10851da177e4SLinus Torvalds return err; 10861da177e4SLinus Torvalds 1087e560d8d8STakashi Iwai if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) { 10881da177e4SLinus Torvalds pci_disable_device(pci); 10891da177e4SLinus Torvalds return -ENOMEM; 10901da177e4SLinus Torvalds } 10911da177e4SLinus Torvalds 10921da177e4SLinus Torvalds spin_lock_init(&chip->reg_lock); 10931da177e4SLinus Torvalds chip->card = card; 10941da177e4SLinus Torvalds chip->pci = pci; 10951da177e4SLinus Torvalds chip->irq = -1; 10961da177e4SLinus Torvalds 10971da177e4SLinus Torvalds if ((err = pci_request_regions(pci, card->driver)) < 0) { 10981da177e4SLinus Torvalds kfree(chip); 10991da177e4SLinus Torvalds pci_disable_device(pci); 11001da177e4SLinus Torvalds return err; 11011da177e4SLinus Torvalds } 11021da177e4SLinus Torvalds chip->port = pci_resource_start(pci, 0); 11031da177e4SLinus Torvalds if (request_irq(pci->irq, snd_via82xx_interrupt, SA_INTERRUPT|SA_SHIRQ, 11041da177e4SLinus Torvalds card->driver, (void *)chip)) { 11051da177e4SLinus Torvalds snd_printk("unable to grab IRQ %d\n", pci->irq); 11061da177e4SLinus Torvalds snd_via82xx_free(chip); 11071da177e4SLinus Torvalds return -EBUSY; 11081da177e4SLinus Torvalds } 11091da177e4SLinus Torvalds chip->irq = pci->irq; 11101da177e4SLinus Torvalds if (ac97_clock >= 8000 && ac97_clock <= 48000) 11111da177e4SLinus Torvalds chip->ac97_clock = ac97_clock; 11121da177e4SLinus Torvalds synchronize_irq(chip->irq); 11131da177e4SLinus Torvalds 11141da177e4SLinus Torvalds if ((err = snd_via82xx_chip_init(chip)) < 0) { 11151da177e4SLinus Torvalds snd_via82xx_free(chip); 11161da177e4SLinus Torvalds return err; 11171da177e4SLinus Torvalds } 11181da177e4SLinus Torvalds 11191da177e4SLinus Torvalds if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 11201da177e4SLinus Torvalds snd_via82xx_free(chip); 11211da177e4SLinus Torvalds return err; 11221da177e4SLinus Torvalds } 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds /* The 8233 ac97 controller does not implement the master bit 11251da177e4SLinus Torvalds * in the pci command register. IMHO this is a violation of the PCI spec. 11261da177e4SLinus Torvalds * We call pci_set_master here because it does not hurt. */ 11271da177e4SLinus Torvalds pci_set_master(pci); 11281da177e4SLinus Torvalds 11291da177e4SLinus Torvalds snd_card_set_dev(card, &pci->dev); 11301da177e4SLinus Torvalds 11311da177e4SLinus Torvalds *r_via = chip; 11321da177e4SLinus Torvalds return 0; 11331da177e4SLinus Torvalds } 11341da177e4SLinus Torvalds 11351da177e4SLinus Torvalds 11361da177e4SLinus Torvalds static int __devinit snd_via82xx_probe(struct pci_dev *pci, 11371da177e4SLinus Torvalds const struct pci_device_id *pci_id) 11381da177e4SLinus Torvalds { 11391da177e4SLinus Torvalds snd_card_t *card; 11401da177e4SLinus Torvalds via82xx_t *chip; 11411da177e4SLinus Torvalds unsigned char revision; 11421da177e4SLinus Torvalds int chip_type = 0, card_type; 11431da177e4SLinus Torvalds unsigned int i; 11441da177e4SLinus Torvalds int err; 11451da177e4SLinus Torvalds 1146b7fe4622SClemens Ladisch card = snd_card_new(index, id, THIS_MODULE, 0); 11471da177e4SLinus Torvalds if (card == NULL) 11481da177e4SLinus Torvalds return -ENOMEM; 11491da177e4SLinus Torvalds 11501da177e4SLinus Torvalds card_type = pci_id->driver_data; 11511da177e4SLinus Torvalds pci_read_config_byte(pci, PCI_REVISION_ID, &revision); 11521da177e4SLinus Torvalds switch (card_type) { 11531da177e4SLinus Torvalds case TYPE_CARD_VIA82XX_MODEM: 11541da177e4SLinus Torvalds strcpy(card->driver, "VIA82XX-MODEM"); 11551da177e4SLinus Torvalds sprintf(card->shortname, "VIA 82XX modem"); 11561da177e4SLinus Torvalds break; 11571da177e4SLinus Torvalds default: 11581da177e4SLinus Torvalds snd_printk(KERN_ERR "invalid card type %d\n", card_type); 11591da177e4SLinus Torvalds err = -EINVAL; 11601da177e4SLinus Torvalds goto __error; 11611da177e4SLinus Torvalds } 11621da177e4SLinus Torvalds 1163b7fe4622SClemens Ladisch if ((err = snd_via82xx_create(card, pci, chip_type, revision, 1164b7fe4622SClemens Ladisch ac97_clock, &chip)) < 0) 11651da177e4SLinus Torvalds goto __error; 11661da177e4SLinus Torvalds if ((err = snd_via82xx_mixer_new(chip)) < 0) 11671da177e4SLinus Torvalds goto __error; 11681da177e4SLinus Torvalds 11691da177e4SLinus Torvalds if ((err = snd_via686_pcm_new(chip)) < 0 ) 11701da177e4SLinus Torvalds goto __error; 11711da177e4SLinus Torvalds 11721da177e4SLinus Torvalds snd_card_set_pm_callback(card, snd_via82xx_suspend, snd_via82xx_resume, chip); 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds /* disable interrupts */ 11751da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 11761da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 11771da177e4SLinus Torvalds 11781da177e4SLinus Torvalds sprintf(card->longname, "%s at 0x%lx, irq %d", 11791da177e4SLinus Torvalds card->shortname, chip->port, chip->irq); 11801da177e4SLinus Torvalds 11811da177e4SLinus Torvalds snd_via82xx_proc_init(chip); 11821da177e4SLinus Torvalds 11831da177e4SLinus Torvalds if ((err = snd_card_register(card)) < 0) { 11841da177e4SLinus Torvalds snd_card_free(card); 11851da177e4SLinus Torvalds return err; 11861da177e4SLinus Torvalds } 11871da177e4SLinus Torvalds pci_set_drvdata(pci, card); 11881da177e4SLinus Torvalds return 0; 11891da177e4SLinus Torvalds 11901da177e4SLinus Torvalds __error: 11911da177e4SLinus Torvalds snd_card_free(card); 11921da177e4SLinus Torvalds return err; 11931da177e4SLinus Torvalds } 11941da177e4SLinus Torvalds 11951da177e4SLinus Torvalds static void __devexit snd_via82xx_remove(struct pci_dev *pci) 11961da177e4SLinus Torvalds { 11971da177e4SLinus Torvalds snd_card_free(pci_get_drvdata(pci)); 11981da177e4SLinus Torvalds pci_set_drvdata(pci, NULL); 11991da177e4SLinus Torvalds } 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds static struct pci_driver driver = { 12021da177e4SLinus Torvalds .name = "VIA 82xx Modem", 12033bcd4649SClemens Ladisch .owner = THIS_MODULE, 12041da177e4SLinus Torvalds .id_table = snd_via82xx_modem_ids, 12051da177e4SLinus Torvalds .probe = snd_via82xx_probe, 12061da177e4SLinus Torvalds .remove = __devexit_p(snd_via82xx_remove), 12071da177e4SLinus Torvalds SND_PCI_PM_CALLBACKS 12081da177e4SLinus Torvalds }; 12091da177e4SLinus Torvalds 12101da177e4SLinus Torvalds static int __init alsa_card_via82xx_init(void) 12111da177e4SLinus Torvalds { 121201d25d46STakashi Iwai return pci_register_driver(&driver); 12131da177e4SLinus Torvalds } 12141da177e4SLinus Torvalds 12151da177e4SLinus Torvalds static void __exit alsa_card_via82xx_exit(void) 12161da177e4SLinus Torvalds { 12171da177e4SLinus Torvalds pci_unregister_driver(&driver); 12181da177e4SLinus Torvalds } 12191da177e4SLinus Torvalds 12201da177e4SLinus Torvalds module_init(alsa_card_via82xx_init) 12211da177e4SLinus Torvalds module_exit(alsa_card_via82xx_exit) 1222