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; 71698444f3STakashi Iwai module_param(enable, bool, 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 /* 2101da177e4SLinus Torvalds * pcm stream 2111da177e4SLinus Torvalds */ 2121da177e4SLinus Torvalds 2131da177e4SLinus Torvalds struct snd_via_sg_table { 2141da177e4SLinus Torvalds unsigned int offset; 2151da177e4SLinus Torvalds unsigned int size; 2161da177e4SLinus Torvalds } ; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds #define VIA_TABLE_SIZE 255 2191da177e4SLinus Torvalds 220e437e3d7STakashi Iwai struct viadev { 2211da177e4SLinus Torvalds unsigned int reg_offset; 2221da177e4SLinus Torvalds unsigned long port; 2231da177e4SLinus Torvalds int direction; /* playback = 0, capture = 1 */ 224e437e3d7STakashi Iwai struct snd_pcm_substream *substream; 2251da177e4SLinus Torvalds int running; 2261da177e4SLinus Torvalds unsigned int tbl_entries; /* # descriptors */ 2271da177e4SLinus Torvalds struct snd_dma_buffer table; 2281da177e4SLinus Torvalds struct snd_via_sg_table *idx_table; 2291da177e4SLinus Torvalds /* for recovery from the unexpected pointer */ 2301da177e4SLinus Torvalds unsigned int lastpos; 2311da177e4SLinus Torvalds unsigned int bufsize; 2321da177e4SLinus Torvalds unsigned int bufsize2; 2331da177e4SLinus Torvalds }; 2341da177e4SLinus Torvalds 2351da177e4SLinus Torvalds enum { TYPE_CARD_VIA82XX_MODEM = 1 }; 2361da177e4SLinus Torvalds 2371da177e4SLinus Torvalds #define VIA_MAX_MODEM_DEVS 2 2381da177e4SLinus Torvalds 239e437e3d7STakashi Iwai struct via82xx_modem { 2401da177e4SLinus Torvalds int irq; 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds unsigned long port; 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */ 2451da177e4SLinus Torvalds 2461da177e4SLinus Torvalds struct pci_dev *pci; 247e437e3d7STakashi Iwai struct snd_card *card; 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds unsigned int num_devs; 2501da177e4SLinus Torvalds unsigned int playback_devno, capture_devno; 251e437e3d7STakashi Iwai struct viadev devs[VIA_MAX_MODEM_DEVS]; 2521da177e4SLinus Torvalds 253e437e3d7STakashi Iwai struct snd_pcm *pcms[2]; 2541da177e4SLinus Torvalds 255e437e3d7STakashi Iwai struct snd_ac97_bus *ac97_bus; 256e437e3d7STakashi Iwai struct snd_ac97 *ac97; 2571da177e4SLinus Torvalds unsigned int ac97_clock; 2581da177e4SLinus Torvalds unsigned int ac97_secondary; /* secondary AC'97 codec is present */ 2591da177e4SLinus Torvalds 2601da177e4SLinus Torvalds spinlock_t reg_lock; 261e437e3d7STakashi Iwai struct snd_info_entry *proc_entry; 2621da177e4SLinus Torvalds }; 2631da177e4SLinus Torvalds 264f40b6890STakashi Iwai static struct pci_device_id snd_via82xx_modem_ids[] = { 2651da177e4SLinus Torvalds { 0x1106, 0x3068, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA82XX_MODEM, }, 2661da177e4SLinus Torvalds { 0, } 2671da177e4SLinus Torvalds }; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids); 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds /* 2721da177e4SLinus Torvalds */ 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds /* 2751da177e4SLinus Torvalds * allocate and initialize the descriptor buffers 2761da177e4SLinus Torvalds * periods = number of periods 2771da177e4SLinus Torvalds * fragsize = period size in bytes 2781da177e4SLinus Torvalds */ 279e437e3d7STakashi Iwai static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream, 2801da177e4SLinus Torvalds struct pci_dev *pci, 2811da177e4SLinus Torvalds unsigned int periods, unsigned int fragsize) 2821da177e4SLinus Torvalds { 2831da177e4SLinus Torvalds unsigned int i, idx, ofs, rest; 284e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 2851da177e4SLinus Torvalds struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds if (dev->table.area == NULL) { 2881da177e4SLinus Torvalds /* the start of each lists must be aligned to 8 bytes, 2891da177e4SLinus Torvalds * but the kernel pages are much bigger, so we don't care 2901da177e4SLinus Torvalds */ 2911da177e4SLinus Torvalds if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), 2921da177e4SLinus Torvalds PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), 2931da177e4SLinus Torvalds &dev->table) < 0) 2941da177e4SLinus Torvalds return -ENOMEM; 2951da177e4SLinus Torvalds } 2961da177e4SLinus Torvalds if (! dev->idx_table) { 2971da177e4SLinus Torvalds dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL); 2981da177e4SLinus Torvalds if (! dev->idx_table) 2991da177e4SLinus Torvalds return -ENOMEM; 3001da177e4SLinus Torvalds } 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds /* fill the entries */ 3031da177e4SLinus Torvalds idx = 0; 3041da177e4SLinus Torvalds ofs = 0; 3051da177e4SLinus Torvalds for (i = 0; i < periods; i++) { 3061da177e4SLinus Torvalds rest = fragsize; 3071da177e4SLinus Torvalds /* fill descriptors for a period. 3081da177e4SLinus Torvalds * a period can be split to several descriptors if it's 3091da177e4SLinus Torvalds * over page boundary. 3101da177e4SLinus Torvalds */ 3111da177e4SLinus Torvalds do { 3121da177e4SLinus Torvalds unsigned int r; 3131da177e4SLinus Torvalds unsigned int flag; 3141da177e4SLinus Torvalds 3151da177e4SLinus Torvalds if (idx >= VIA_TABLE_SIZE) { 3161da177e4SLinus Torvalds snd_printk(KERN_ERR "via82xx: too much table size!\n"); 3171da177e4SLinus Torvalds return -EINVAL; 3181da177e4SLinus Torvalds } 3191da177e4SLinus Torvalds ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs)); 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 */ 3311da177e4SLinus Torvalds // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest); 3321da177e4SLinus Torvalds ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag); 3331da177e4SLinus Torvalds dev->idx_table[idx].offset = ofs; 3341da177e4SLinus Torvalds dev->idx_table[idx].size = r; 3351da177e4SLinus Torvalds ofs += r; 3361da177e4SLinus Torvalds idx++; 3371da177e4SLinus Torvalds } while (rest > 0); 3381da177e4SLinus Torvalds } 3391da177e4SLinus Torvalds dev->tbl_entries = idx; 3401da177e4SLinus Torvalds dev->bufsize = periods * fragsize; 3411da177e4SLinus Torvalds dev->bufsize2 = dev->bufsize / 2; 3421da177e4SLinus Torvalds return 0; 3431da177e4SLinus Torvalds } 3441da177e4SLinus Torvalds 3451da177e4SLinus Torvalds 346e437e3d7STakashi Iwai static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream, 3471da177e4SLinus Torvalds struct pci_dev *pci) 3481da177e4SLinus Torvalds { 3491da177e4SLinus Torvalds if (dev->table.area) { 3501da177e4SLinus Torvalds snd_dma_free_pages(&dev->table); 3511da177e4SLinus Torvalds dev->table.area = NULL; 3521da177e4SLinus Torvalds } 3531da177e4SLinus Torvalds kfree(dev->idx_table); 3541da177e4SLinus Torvalds dev->idx_table = NULL; 3551da177e4SLinus Torvalds return 0; 3561da177e4SLinus Torvalds } 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds /* 3591da177e4SLinus Torvalds * Basic I/O 3601da177e4SLinus Torvalds */ 3611da177e4SLinus Torvalds 362e437e3d7STakashi Iwai static inline unsigned int snd_via82xx_codec_xread(struct via82xx_modem *chip) 3631da177e4SLinus Torvalds { 3641da177e4SLinus Torvalds return inl(VIAREG(chip, AC97)); 3651da177e4SLinus Torvalds } 3661da177e4SLinus Torvalds 367e437e3d7STakashi Iwai static inline void snd_via82xx_codec_xwrite(struct via82xx_modem *chip, unsigned int val) 3681da177e4SLinus Torvalds { 3691da177e4SLinus Torvalds outl(val, VIAREG(chip, AC97)); 3701da177e4SLinus Torvalds } 3711da177e4SLinus Torvalds 372e437e3d7STakashi Iwai static int snd_via82xx_codec_ready(struct via82xx_modem *chip, int secondary) 3731da177e4SLinus Torvalds { 3741da177e4SLinus Torvalds unsigned int timeout = 1000; /* 1ms */ 3751da177e4SLinus Torvalds unsigned int val; 3761da177e4SLinus Torvalds 3771da177e4SLinus Torvalds while (timeout-- > 0) { 3781da177e4SLinus Torvalds udelay(1); 3791da177e4SLinus Torvalds if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)) 3801da177e4SLinus Torvalds return val & 0xffff; 3811da177e4SLinus Torvalds } 382e437e3d7STakashi Iwai snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", 383e437e3d7STakashi Iwai secondary, snd_via82xx_codec_xread(chip)); 3841da177e4SLinus Torvalds return -EIO; 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 387e437e3d7STakashi Iwai static int snd_via82xx_codec_valid(struct via82xx_modem *chip, int secondary) 3881da177e4SLinus Torvalds { 3891da177e4SLinus Torvalds unsigned int timeout = 1000; /* 1ms */ 3901da177e4SLinus Torvalds unsigned int val, val1; 3911da177e4SLinus Torvalds unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : 3921da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID; 3931da177e4SLinus Torvalds 3941da177e4SLinus Torvalds while (timeout-- > 0) { 3951da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 3961da177e4SLinus Torvalds val1 = val & (VIA_REG_AC97_BUSY | stat); 3971da177e4SLinus Torvalds if (val1 == stat) 3981da177e4SLinus Torvalds return val & 0xffff; 3991da177e4SLinus Torvalds udelay(1); 4001da177e4SLinus Torvalds } 4011da177e4SLinus Torvalds return -EIO; 4021da177e4SLinus Torvalds } 4031da177e4SLinus Torvalds 404e437e3d7STakashi Iwai static void snd_via82xx_codec_wait(struct snd_ac97 *ac97) 4051da177e4SLinus Torvalds { 406e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4071da177e4SLinus Torvalds int err; 4081da177e4SLinus Torvalds err = snd_via82xx_codec_ready(chip, ac97->num); 4091da177e4SLinus Torvalds /* here we need to wait fairly for long time.. */ 410ef21ca24SNishanth Aravamudan msleep(500); 4111da177e4SLinus Torvalds } 4121da177e4SLinus Torvalds 413e437e3d7STakashi Iwai static void snd_via82xx_codec_write(struct snd_ac97 *ac97, 4141da177e4SLinus Torvalds unsigned short reg, 4151da177e4SLinus Torvalds unsigned short val) 4161da177e4SLinus Torvalds { 417e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4181da177e4SLinus Torvalds unsigned int xval; 41983a5b72aSSasha Khapyorsky if(reg == AC97_GPIO_STATUS) { 42083a5b72aSSasha Khapyorsky outl(val, VIAREG(chip, GPI_STATUS)); 42183a5b72aSSasha Khapyorsky return; 42283a5b72aSSasha Khapyorsky } 4231da177e4SLinus Torvalds xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; 4241da177e4SLinus Torvalds xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; 4251da177e4SLinus Torvalds xval |= reg << VIA_REG_AC97_CMD_SHIFT; 4261da177e4SLinus Torvalds xval |= val << VIA_REG_AC97_DATA_SHIFT; 4271da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4281da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, ac97->num); 4291da177e4SLinus Torvalds } 4301da177e4SLinus Torvalds 431e437e3d7STakashi Iwai static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg) 4321da177e4SLinus Torvalds { 433e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 4341da177e4SLinus Torvalds unsigned int xval, val = 0xffff; 4351da177e4SLinus Torvalds int again = 0; 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT; 4381da177e4SLinus Torvalds xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID; 4391da177e4SLinus Torvalds xval |= VIA_REG_AC97_READ; 4401da177e4SLinus Torvalds xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT; 4411da177e4SLinus Torvalds while (1) { 4421da177e4SLinus Torvalds if (again++ > 3) { 443e437e3d7STakashi Iwai snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", 444e437e3d7STakashi Iwai ac97->num, snd_via82xx_codec_xread(chip)); 4451da177e4SLinus Torvalds return 0xffff; 4461da177e4SLinus Torvalds } 4471da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, xval); 4481da177e4SLinus Torvalds udelay (20); 4491da177e4SLinus Torvalds if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { 4501da177e4SLinus Torvalds udelay(25); 4511da177e4SLinus Torvalds val = snd_via82xx_codec_xread(chip); 4521da177e4SLinus Torvalds break; 4531da177e4SLinus Torvalds } 4541da177e4SLinus Torvalds } 4551da177e4SLinus Torvalds return val & 0xffff; 4561da177e4SLinus Torvalds } 4571da177e4SLinus Torvalds 458e437e3d7STakashi Iwai static void snd_via82xx_channel_reset(struct via82xx_modem *chip, struct viadev *viadev) 4591da177e4SLinus Torvalds { 4601da177e4SLinus Torvalds outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, 4611da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_CONTROL)); 4621da177e4SLinus Torvalds inb(VIADEV_REG(viadev, OFFSET_CONTROL)); 4631da177e4SLinus Torvalds udelay(50); 4641da177e4SLinus Torvalds /* disable interrupts */ 4651da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL)); 4661da177e4SLinus Torvalds /* clear interrupts */ 4671da177e4SLinus Torvalds outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS)); 4681da177e4SLinus Torvalds outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */ 4691da177e4SLinus Torvalds // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR)); 4701da177e4SLinus Torvalds viadev->lastpos = 0; 4711da177e4SLinus Torvalds } 4721da177e4SLinus Torvalds 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds /* 4751da177e4SLinus Torvalds * Interrupt handler 4761da177e4SLinus Torvalds */ 4771da177e4SLinus Torvalds 4787d12e780SDavid Howells static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id) 4791da177e4SLinus Torvalds { 480e437e3d7STakashi Iwai struct via82xx_modem *chip = dev_id; 4811da177e4SLinus Torvalds unsigned int status; 4821da177e4SLinus Torvalds unsigned int i; 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds status = inl(VIAREG(chip, SGD_SHADOW)); 4851da177e4SLinus Torvalds if (! (status & chip->intr_mask)) { 4861da177e4SLinus Torvalds return IRQ_NONE; 4871da177e4SLinus Torvalds } 4881da177e4SLinus Torvalds // _skip_sgd: 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds /* check status for each stream */ 4911da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 4921da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) { 493e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[i]; 4941da177e4SLinus Torvalds unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); 4951da177e4SLinus Torvalds c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED); 4961da177e4SLinus Torvalds if (! c_status) 4971da177e4SLinus Torvalds continue; 4981da177e4SLinus Torvalds if (viadev->substream && viadev->running) { 4991da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5001da177e4SLinus Torvalds snd_pcm_period_elapsed(viadev->substream); 5011da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 5021da177e4SLinus Torvalds } 5031da177e4SLinus Torvalds outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */ 5041da177e4SLinus Torvalds } 5051da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 5061da177e4SLinus Torvalds return IRQ_HANDLED; 5071da177e4SLinus Torvalds } 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds /* 5101da177e4SLinus Torvalds * PCM callbacks 5111da177e4SLinus Torvalds */ 5121da177e4SLinus Torvalds 5131da177e4SLinus Torvalds /* 5141da177e4SLinus Torvalds * trigger callback 5151da177e4SLinus Torvalds */ 516e437e3d7STakashi Iwai static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) 5171da177e4SLinus Torvalds { 518e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 519e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 5201da177e4SLinus Torvalds unsigned char val = 0; 5211da177e4SLinus Torvalds 5221da177e4SLinus Torvalds switch (cmd) { 5231da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_START: 52441e4845cSJaroslav Kysela case SNDRV_PCM_TRIGGER_SUSPEND: 5251da177e4SLinus Torvalds val |= VIA_REG_CTRL_START; 5261da177e4SLinus Torvalds viadev->running = 1; 5271da177e4SLinus Torvalds break; 5281da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_STOP: 5291da177e4SLinus Torvalds val = VIA_REG_CTRL_TERMINATE; 5301da177e4SLinus Torvalds viadev->running = 0; 5311da177e4SLinus Torvalds break; 5321da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 5331da177e4SLinus Torvalds val |= VIA_REG_CTRL_PAUSE; 5341da177e4SLinus Torvalds viadev->running = 0; 5351da177e4SLinus Torvalds break; 5361da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 5371da177e4SLinus Torvalds viadev->running = 1; 5381da177e4SLinus Torvalds break; 5391da177e4SLinus Torvalds default: 5401da177e4SLinus Torvalds return -EINVAL; 5411da177e4SLinus Torvalds } 5421da177e4SLinus Torvalds outb(val, VIADEV_REG(viadev, OFFSET_CONTROL)); 5431da177e4SLinus Torvalds if (cmd == SNDRV_PCM_TRIGGER_STOP) 5441da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 5451da177e4SLinus Torvalds return 0; 5461da177e4SLinus Torvalds } 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvalds /* 5491da177e4SLinus Torvalds * pointer callbacks 5501da177e4SLinus Torvalds */ 5511da177e4SLinus Torvalds 5521da177e4SLinus Torvalds /* 5531da177e4SLinus Torvalds * calculate the linear position at the given sg-buffer index and the rest count 5541da177e4SLinus Torvalds */ 5551da177e4SLinus Torvalds 5561da177e4SLinus Torvalds #define check_invalid_pos(viadev,pos) \ 557e437e3d7STakashi Iwai ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\ 558e437e3d7STakashi Iwai viadev->lastpos < viadev->bufsize2)) 5591da177e4SLinus Torvalds 560e437e3d7STakashi Iwai static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx, 561e437e3d7STakashi Iwai unsigned int count) 5621da177e4SLinus Torvalds { 5631da177e4SLinus Torvalds unsigned int size, res; 5641da177e4SLinus Torvalds 5651da177e4SLinus Torvalds size = viadev->idx_table[idx].size; 5661da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size - count; 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds /* check the validity of the calculated position */ 5691da177e4SLinus Torvalds if (size < count) { 570e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", 571e437e3d7STakashi Iwai (int)size, (int)count); 5721da177e4SLinus Torvalds res = viadev->lastpos; 5731da177e4SLinus Torvalds } else if (check_invalid_pos(viadev, res)) { 5741da177e4SLinus Torvalds #ifdef POINTER_DEBUG 575e437e3d7STakashi Iwai printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, " 576e437e3d7STakashi Iwai "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, " 577e437e3d7STakashi Iwai "count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, 578e437e3d7STakashi Iwai viadev->bufsize2, viadev->idx_table[idx].offset, 579e437e3d7STakashi Iwai viadev->idx_table[idx].size, count); 5801da177e4SLinus Torvalds #endif 5811da177e4SLinus Torvalds if (count && size < count) { 582e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr, " 583e437e3d7STakashi Iwai "using last valid pointer\n"); 5841da177e4SLinus Torvalds res = viadev->lastpos; 5851da177e4SLinus Torvalds } else { 5861da177e4SLinus Torvalds if (! count) 5871da177e4SLinus Torvalds /* bogus count 0 on the DMA boundary? */ 5881da177e4SLinus Torvalds res = viadev->idx_table[idx].offset; 5891da177e4SLinus Torvalds else 590e437e3d7STakashi Iwai /* count register returns full size 591e437e3d7STakashi Iwai * when end of buffer is reached 592e437e3d7STakashi Iwai */ 5931da177e4SLinus Torvalds res = viadev->idx_table[idx].offset + size; 5941da177e4SLinus Torvalds if (check_invalid_pos(viadev, res)) { 595e437e3d7STakashi Iwai snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), " 596e437e3d7STakashi Iwai "using last valid pointer\n"); 5971da177e4SLinus Torvalds res = viadev->lastpos; 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds viadev->lastpos = res; /* remember the last position */ 6021da177e4SLinus Torvalds if (res >= viadev->bufsize) 6031da177e4SLinus Torvalds res -= viadev->bufsize; 6041da177e4SLinus Torvalds return res; 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds /* 6081da177e4SLinus Torvalds * get the current pointer on via686 6091da177e4SLinus Torvalds */ 610e437e3d7STakashi Iwai static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream) 6111da177e4SLinus Torvalds { 612e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 613e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6141da177e4SLinus Torvalds unsigned int idx, ptr, count, res; 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds snd_assert(viadev->tbl_entries, return 0); 6171da177e4SLinus Torvalds if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE)) 6181da177e4SLinus Torvalds return 0; 6191da177e4SLinus Torvalds 6201da177e4SLinus Torvalds spin_lock(&chip->reg_lock); 6211da177e4SLinus Torvalds count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff; 6221da177e4SLinus Torvalds /* The via686a does not have the current index register, 6231da177e4SLinus Torvalds * so we need to calculate the index from CURR_PTR. 6241da177e4SLinus Torvalds */ 6251da177e4SLinus Torvalds ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR)); 6261da177e4SLinus Torvalds if (ptr <= (unsigned int)viadev->table.addr) 6271da177e4SLinus Torvalds idx = 0; 6281da177e4SLinus Torvalds else /* CURR_PTR holds the address + 8 */ 629e437e3d7STakashi Iwai idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % 630e437e3d7STakashi Iwai viadev->tbl_entries; 6311da177e4SLinus Torvalds res = calc_linear_pos(viadev, idx, count); 6321da177e4SLinus Torvalds spin_unlock(&chip->reg_lock); 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvalds return bytes_to_frames(substream->runtime, res); 6351da177e4SLinus Torvalds } 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds /* 6381da177e4SLinus Torvalds * hw_params callback: 6391da177e4SLinus Torvalds * allocate the buffer and build up the buffer description table 6401da177e4SLinus Torvalds */ 641e437e3d7STakashi Iwai static int snd_via82xx_hw_params(struct snd_pcm_substream *substream, 642e437e3d7STakashi Iwai struct snd_pcm_hw_params *hw_params) 6431da177e4SLinus Torvalds { 644e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 645e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6461da177e4SLinus Torvalds int err; 6471da177e4SLinus Torvalds 6481da177e4SLinus Torvalds err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 6491da177e4SLinus Torvalds if (err < 0) 6501da177e4SLinus Torvalds return err; 6511da177e4SLinus Torvalds err = build_via_table(viadev, substream, chip->pci, 6521da177e4SLinus Torvalds params_periods(hw_params), 6531da177e4SLinus Torvalds params_period_bytes(hw_params)); 6541da177e4SLinus Torvalds if (err < 0) 6551da177e4SLinus Torvalds return err; 6561da177e4SLinus Torvalds 6571da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params)); 6581da177e4SLinus Torvalds snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0); 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds return 0; 6611da177e4SLinus Torvalds } 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds /* 6641da177e4SLinus Torvalds * hw_free callback: 6651da177e4SLinus Torvalds * clean up the buffer description table and release the buffer 6661da177e4SLinus Torvalds */ 667e437e3d7STakashi Iwai static int snd_via82xx_hw_free(struct snd_pcm_substream *substream) 6681da177e4SLinus Torvalds { 669e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 670e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds clean_via_table(viadev, substream, chip->pci); 6731da177e4SLinus Torvalds snd_pcm_lib_free_pages(substream); 6741da177e4SLinus Torvalds return 0; 6751da177e4SLinus Torvalds } 6761da177e4SLinus Torvalds 6771da177e4SLinus Torvalds 6781da177e4SLinus Torvalds /* 6791da177e4SLinus Torvalds * set up the table pointer 6801da177e4SLinus Torvalds */ 681e437e3d7STakashi Iwai static void snd_via82xx_set_table_ptr(struct via82xx_modem *chip, struct viadev *viadev) 6821da177e4SLinus Torvalds { 6831da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6841da177e4SLinus Torvalds outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR)); 6851da177e4SLinus Torvalds udelay(20); 6861da177e4SLinus Torvalds snd_via82xx_codec_ready(chip, chip->ac97_secondary); 6871da177e4SLinus Torvalds } 6881da177e4SLinus Torvalds 6891da177e4SLinus Torvalds /* 6901da177e4SLinus Torvalds * prepare callback for playback and capture 6911da177e4SLinus Torvalds */ 692e437e3d7STakashi Iwai static int snd_via82xx_pcm_prepare(struct snd_pcm_substream *substream) 6931da177e4SLinus Torvalds { 694e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 695e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, viadev); 6981da177e4SLinus Torvalds /* this must be set after channel_reset */ 6991da177e4SLinus Torvalds snd_via82xx_set_table_ptr(chip, viadev); 7001da177e4SLinus Torvalds outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG, 7011da177e4SLinus Torvalds VIADEV_REG(viadev, OFFSET_TYPE)); 7021da177e4SLinus Torvalds return 0; 7031da177e4SLinus Torvalds } 7041da177e4SLinus Torvalds 7051da177e4SLinus Torvalds /* 7061da177e4SLinus Torvalds * pcm hardware definition, identical for both playback and capture 7071da177e4SLinus Torvalds */ 708e437e3d7STakashi Iwai static struct snd_pcm_hardware snd_via82xx_hw = 7091da177e4SLinus Torvalds { 7101da177e4SLinus Torvalds .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 7111da177e4SLinus Torvalds SNDRV_PCM_INFO_BLOCK_TRANSFER | 7121da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP_VALID | 71341e4845cSJaroslav Kysela /* SNDRV_PCM_INFO_RESUME | */ 7141da177e4SLinus Torvalds SNDRV_PCM_INFO_PAUSE), 7151da177e4SLinus Torvalds .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, 7161da177e4SLinus Torvalds .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, 7171da177e4SLinus Torvalds .rate_min = 8000, 7181da177e4SLinus Torvalds .rate_max = 16000, 7191da177e4SLinus Torvalds .channels_min = 1, 7201da177e4SLinus Torvalds .channels_max = 1, 7211da177e4SLinus Torvalds .buffer_bytes_max = 128 * 1024, 7221da177e4SLinus Torvalds .period_bytes_min = 32, 7231da177e4SLinus Torvalds .period_bytes_max = 128 * 1024, 7241da177e4SLinus Torvalds .periods_min = 2, 7251da177e4SLinus Torvalds .periods_max = VIA_TABLE_SIZE / 2, 7261da177e4SLinus Torvalds .fifo_size = 0, 7271da177e4SLinus Torvalds }; 7281da177e4SLinus Torvalds 7291da177e4SLinus Torvalds 7301da177e4SLinus Torvalds /* 7311da177e4SLinus Torvalds * open callback skeleton 7321da177e4SLinus Torvalds */ 733e437e3d7STakashi Iwai static int snd_via82xx_modem_pcm_open(struct via82xx_modem *chip, struct viadev *viadev, 734e437e3d7STakashi Iwai struct snd_pcm_substream *substream) 7351da177e4SLinus Torvalds { 736e437e3d7STakashi Iwai struct snd_pcm_runtime *runtime = substream->runtime; 7371da177e4SLinus Torvalds int err; 7381da177e4SLinus Torvalds static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; 739e437e3d7STakashi Iwai static struct snd_pcm_hw_constraint_list hw_constraints_rates = { 7401da177e4SLinus Torvalds .count = ARRAY_SIZE(rates), 7411da177e4SLinus Torvalds .list = rates, 7421da177e4SLinus Torvalds .mask = 0, 7431da177e4SLinus Torvalds }; 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds runtime->hw = snd_via82xx_hw; 7461da177e4SLinus Torvalds 747e437e3d7STakashi Iwai if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 748e437e3d7STakashi Iwai &hw_constraints_rates)) < 0) 7491da177e4SLinus Torvalds return err; 7501da177e4SLinus Torvalds 7511da177e4SLinus Torvalds /* we may remove following constaint when we modify table entries 7521da177e4SLinus Torvalds in interrupt */ 7531da177e4SLinus Torvalds if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) 7541da177e4SLinus Torvalds return err; 7551da177e4SLinus Torvalds 7561da177e4SLinus Torvalds runtime->private_data = viadev; 7571da177e4SLinus Torvalds viadev->substream = substream; 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds return 0; 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds 7621da177e4SLinus Torvalds 7631da177e4SLinus Torvalds /* 7641da177e4SLinus Torvalds * open callback for playback 7651da177e4SLinus Torvalds */ 766e437e3d7STakashi Iwai static int snd_via82xx_playback_open(struct snd_pcm_substream *substream) 7671da177e4SLinus Torvalds { 768e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 769e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number]; 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7721da177e4SLinus Torvalds } 7731da177e4SLinus Torvalds 7741da177e4SLinus Torvalds /* 7751da177e4SLinus Torvalds * open callback for capture 7761da177e4SLinus Torvalds */ 777e437e3d7STakashi Iwai static int snd_via82xx_capture_open(struct snd_pcm_substream *substream) 7781da177e4SLinus Torvalds { 779e437e3d7STakashi Iwai struct via82xx_modem *chip = snd_pcm_substream_chip(substream); 780e437e3d7STakashi Iwai struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device]; 7811da177e4SLinus Torvalds 7821da177e4SLinus Torvalds return snd_via82xx_modem_pcm_open(chip, viadev, substream); 7831da177e4SLinus Torvalds } 7841da177e4SLinus Torvalds 7851da177e4SLinus Torvalds /* 7861da177e4SLinus Torvalds * close callback 7871da177e4SLinus Torvalds */ 788e437e3d7STakashi Iwai static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream) 7891da177e4SLinus Torvalds { 790e437e3d7STakashi Iwai struct viadev *viadev = substream->runtime->private_data; 7911da177e4SLinus Torvalds 7921da177e4SLinus Torvalds viadev->substream = NULL; 7931da177e4SLinus Torvalds return 0; 7941da177e4SLinus Torvalds } 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds 7971da177e4SLinus Torvalds /* via686 playback callbacks */ 798e437e3d7STakashi Iwai static struct snd_pcm_ops snd_via686_playback_ops = { 7991da177e4SLinus Torvalds .open = snd_via82xx_playback_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 /* via686 capture callbacks */ 811e437e3d7STakashi Iwai static struct snd_pcm_ops snd_via686_capture_ops = { 8121da177e4SLinus Torvalds .open = snd_via82xx_capture_open, 8131da177e4SLinus Torvalds .close = snd_via82xx_pcm_close, 8141da177e4SLinus Torvalds .ioctl = snd_pcm_lib_ioctl, 8151da177e4SLinus Torvalds .hw_params = snd_via82xx_hw_params, 8161da177e4SLinus Torvalds .hw_free = snd_via82xx_hw_free, 8171da177e4SLinus Torvalds .prepare = snd_via82xx_pcm_prepare, 81883a5b72aSSasha Khapyorsky .trigger = snd_via82xx_pcm_trigger, 8191da177e4SLinus Torvalds .pointer = snd_via686_pcm_pointer, 8201da177e4SLinus Torvalds .page = snd_pcm_sgbuf_ops_page, 8211da177e4SLinus Torvalds }; 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds 824e437e3d7STakashi Iwai static void init_viadev(struct via82xx_modem *chip, int idx, unsigned int reg_offset, 825e437e3d7STakashi Iwai int direction) 8261da177e4SLinus Torvalds { 8271da177e4SLinus Torvalds chip->devs[idx].reg_offset = reg_offset; 8281da177e4SLinus Torvalds chip->devs[idx].direction = direction; 8291da177e4SLinus Torvalds chip->devs[idx].port = chip->port + reg_offset; 8301da177e4SLinus Torvalds } 8311da177e4SLinus Torvalds 8321da177e4SLinus Torvalds /* 8331da177e4SLinus Torvalds * create a pcm instance for via686a/b 8341da177e4SLinus Torvalds */ 835e437e3d7STakashi Iwai static int __devinit snd_via686_pcm_new(struct via82xx_modem *chip) 8361da177e4SLinus Torvalds { 837e437e3d7STakashi Iwai struct snd_pcm *pcm; 8381da177e4SLinus Torvalds int err; 8391da177e4SLinus Torvalds 8401da177e4SLinus Torvalds chip->playback_devno = 0; 8411da177e4SLinus Torvalds chip->capture_devno = 1; 8421da177e4SLinus Torvalds chip->num_devs = 2; 8431da177e4SLinus Torvalds chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */ 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvalds err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm); 8461da177e4SLinus Torvalds if (err < 0) 8471da177e4SLinus Torvalds return err; 8481da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops); 8491da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops); 8506632d198SSasha Khapyorsky pcm->dev_class = SNDRV_PCM_CLASS_MODEM; 8511da177e4SLinus Torvalds pcm->private_data = chip; 8521da177e4SLinus Torvalds strcpy(pcm->name, chip->card->shortname); 8531da177e4SLinus Torvalds chip->pcms[0] = pcm; 8541da177e4SLinus Torvalds init_viadev(chip, 0, VIA_REG_MO_STATUS, 0); 8551da177e4SLinus Torvalds init_viadev(chip, 1, VIA_REG_MI_STATUS, 1); 8561da177e4SLinus Torvalds 8571da177e4SLinus Torvalds if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, 858e437e3d7STakashi Iwai snd_dma_pci_data(chip->pci), 859e437e3d7STakashi Iwai 64*1024, 128*1024)) < 0) 8601da177e4SLinus Torvalds return err; 8611da177e4SLinus Torvalds 8621da177e4SLinus Torvalds return 0; 8631da177e4SLinus Torvalds } 8641da177e4SLinus Torvalds 8651da177e4SLinus Torvalds 8661da177e4SLinus Torvalds /* 8671da177e4SLinus Torvalds * Mixer part 8681da177e4SLinus Torvalds */ 8691da177e4SLinus Torvalds 8701da177e4SLinus Torvalds 871e437e3d7STakashi Iwai static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus) 8721da177e4SLinus Torvalds { 873e437e3d7STakashi Iwai struct via82xx_modem *chip = bus->private_data; 8741da177e4SLinus Torvalds chip->ac97_bus = NULL; 8751da177e4SLinus Torvalds } 8761da177e4SLinus Torvalds 877e437e3d7STakashi Iwai static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97) 8781da177e4SLinus Torvalds { 879e437e3d7STakashi Iwai struct via82xx_modem *chip = ac97->private_data; 8801da177e4SLinus Torvalds chip->ac97 = NULL; 8811da177e4SLinus Torvalds } 8821da177e4SLinus Torvalds 8831da177e4SLinus Torvalds 884e437e3d7STakashi Iwai static int __devinit snd_via82xx_mixer_new(struct via82xx_modem *chip) 8851da177e4SLinus Torvalds { 886e437e3d7STakashi Iwai struct snd_ac97_template ac97; 8871da177e4SLinus Torvalds int err; 888e437e3d7STakashi Iwai static struct snd_ac97_bus_ops ops = { 8891da177e4SLinus Torvalds .write = snd_via82xx_codec_write, 8901da177e4SLinus Torvalds .read = snd_via82xx_codec_read, 8911da177e4SLinus Torvalds .wait = snd_via82xx_codec_wait, 8921da177e4SLinus Torvalds }; 8931da177e4SLinus Torvalds 8941da177e4SLinus Torvalds if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0) 8951da177e4SLinus Torvalds return err; 8961da177e4SLinus Torvalds chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus; 8971da177e4SLinus Torvalds chip->ac97_bus->clock = chip->ac97_clock; 8981da177e4SLinus Torvalds 8991da177e4SLinus Torvalds memset(&ac97, 0, sizeof(ac97)); 9001da177e4SLinus Torvalds ac97.private_data = chip; 9011da177e4SLinus Torvalds ac97.private_free = snd_via82xx_mixer_free_ac97; 9021da177e4SLinus Torvalds ac97.pci = chip->pci; 903f1a63a38STakashi Iwai ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE; 9041da177e4SLinus Torvalds ac97.num = chip->ac97_secondary; 9051da177e4SLinus Torvalds 9061da177e4SLinus Torvalds if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) 9071da177e4SLinus Torvalds return err; 9081da177e4SLinus Torvalds 9091da177e4SLinus Torvalds return 0; 9101da177e4SLinus Torvalds } 9111da177e4SLinus Torvalds 9121da177e4SLinus Torvalds 9131da177e4SLinus Torvalds /* 9141da177e4SLinus Torvalds * proc interface 9151da177e4SLinus Torvalds */ 916e437e3d7STakashi Iwai static void snd_via82xx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) 9171da177e4SLinus Torvalds { 918e437e3d7STakashi Iwai struct via82xx_modem *chip = entry->private_data; 9191da177e4SLinus Torvalds int i; 9201da177e4SLinus Torvalds 9211da177e4SLinus Torvalds snd_iprintf(buffer, "%s\n\n", chip->card->longname); 9221da177e4SLinus Torvalds for (i = 0; i < 0xa0; i += 4) { 9231da177e4SLinus Torvalds snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i)); 9241da177e4SLinus Torvalds } 9251da177e4SLinus Torvalds } 9261da177e4SLinus Torvalds 927e437e3d7STakashi Iwai static void __devinit snd_via82xx_proc_init(struct via82xx_modem *chip) 9281da177e4SLinus Torvalds { 929e437e3d7STakashi Iwai struct snd_info_entry *entry; 9301da177e4SLinus Torvalds 9311da177e4SLinus Torvalds if (! snd_card_proc_new(chip->card, "via82xx", &entry)) 932bf850204STakashi Iwai snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read); 9331da177e4SLinus Torvalds } 9341da177e4SLinus Torvalds 9351da177e4SLinus Torvalds /* 9361da177e4SLinus Torvalds * 9371da177e4SLinus Torvalds */ 9381da177e4SLinus Torvalds 939e437e3d7STakashi Iwai static int snd_via82xx_chip_init(struct via82xx_modem *chip) 9401da177e4SLinus Torvalds { 9411da177e4SLinus Torvalds unsigned int val; 942ef21ca24SNishanth Aravamudan unsigned long end_time; 9431da177e4SLinus Torvalds unsigned char pval; 9441da177e4SLinus Torvalds 9451da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); 9461da177e4SLinus Torvalds if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) { 9471da177e4SLinus Torvalds pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT); 9481da177e4SLinus Torvalds udelay(100); 9491da177e4SLinus Torvalds } 9501da177e4SLinus Torvalds 9511da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9521da177e4SLinus Torvalds if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */ 9531da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC */ 9541da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9551da177e4SLinus Torvalds VIA_ACLINK_CTRL_ENABLE | 9561da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET | 9571da177e4SLinus Torvalds VIA_ACLINK_CTRL_SYNC); 9581da177e4SLinus Torvalds udelay(100); 9591da177e4SLinus Torvalds #if 1 /* FIXME: should we do full reset here for all chip models? */ 9601da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00); 9611da177e4SLinus Torvalds udelay(100); 9621da177e4SLinus Torvalds #else 9631da177e4SLinus Torvalds /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ 9641da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 9651da177e4SLinus Torvalds VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC); 9661da177e4SLinus Torvalds udelay(2); 9671da177e4SLinus Torvalds #endif 9681da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9691da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9701da177e4SLinus Torvalds udelay(100); 9711da177e4SLinus Torvalds } 9721da177e4SLinus Torvalds 9731da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval); 9741da177e4SLinus Torvalds if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) { 9751da177e4SLinus Torvalds /* ACLink on, deassert ACLink reset, VSR, SGD data out */ 9761da177e4SLinus Torvalds pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); 9771da177e4SLinus Torvalds udelay(100); 9781da177e4SLinus Torvalds } 9791da177e4SLinus Torvalds 9801da177e4SLinus Torvalds /* wait until codec ready */ 981ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 9821da177e4SLinus Torvalds do { 9831da177e4SLinus Torvalds pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); 9841da177e4SLinus Torvalds if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ 9851da177e4SLinus Torvalds break; 9868433a509SNishanth Aravamudan schedule_timeout_uninterruptible(1); 987ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 9881da177e4SLinus Torvalds 9891da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) 99099b359baSTakashi Iwai snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val); 9911da177e4SLinus Torvalds 9921da177e4SLinus Torvalds snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | 9931da177e4SLinus Torvalds VIA_REG_AC97_SECONDARY_VALID | 9941da177e4SLinus Torvalds (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); 995ef21ca24SNishanth Aravamudan end_time = jiffies + msecs_to_jiffies(750); 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)); 9991da177e4SLinus Torvalds do { 10001da177e4SLinus Torvalds if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) { 10011da177e4SLinus Torvalds chip->ac97_secondary = 1; 10021da177e4SLinus Torvalds goto __ac97_ok2; 10031da177e4SLinus Torvalds } 10048433a509SNishanth Aravamudan schedule_timeout_interruptible(1); 1005ef21ca24SNishanth Aravamudan } while (time_before(jiffies, end_time)); 10061da177e4SLinus Torvalds /* This is ok, the most of motherboards have only one codec */ 10071da177e4SLinus Torvalds 10081da177e4SLinus Torvalds __ac97_ok2: 10091da177e4SLinus Torvalds 10101da177e4SLinus Torvalds /* route FM trap to IRQ, disable FM trap */ 10111da177e4SLinus Torvalds // pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0); 10121da177e4SLinus Torvalds /* disable all GPI interrupts */ 10131da177e4SLinus Torvalds outl(0, VIAREG(chip, GPI_INTR)); 10141da177e4SLinus Torvalds 10151da177e4SLinus Torvalds return 0; 10161da177e4SLinus Torvalds } 10171da177e4SLinus Torvalds 10181da177e4SLinus Torvalds #ifdef CONFIG_PM 10191da177e4SLinus Torvalds /* 10201da177e4SLinus Torvalds * power management 10211da177e4SLinus Torvalds */ 102257feb835STakashi Iwai static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state) 10231da177e4SLinus Torvalds { 102457feb835STakashi Iwai struct snd_card *card = pci_get_drvdata(pci); 102557feb835STakashi Iwai struct via82xx_modem *chip = card->private_data; 10261da177e4SLinus Torvalds int i; 10271da177e4SLinus Torvalds 102857feb835STakashi Iwai snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); 10291da177e4SLinus Torvalds for (i = 0; i < 2; i++) 10301da177e4SLinus Torvalds snd_pcm_suspend_all(chip->pcms[i]); 10311da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10321da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10331da177e4SLinus Torvalds synchronize_irq(chip->irq); 10341da177e4SLinus Torvalds snd_ac97_suspend(chip->ac97); 103530b35399STakashi Iwai 103657feb835STakashi Iwai pci_disable_device(pci); 103757feb835STakashi Iwai pci_save_state(pci); 103830b35399STakashi Iwai pci_set_power_state(pci, pci_choose_state(pci, state)); 10391da177e4SLinus Torvalds return 0; 10401da177e4SLinus Torvalds } 10411da177e4SLinus Torvalds 104257feb835STakashi Iwai static int snd_via82xx_resume(struct pci_dev *pci) 10431da177e4SLinus Torvalds { 104457feb835STakashi Iwai struct snd_card *card = pci_get_drvdata(pci); 104557feb835STakashi Iwai struct via82xx_modem *chip = card->private_data; 10461da177e4SLinus Torvalds int i; 10471da177e4SLinus Torvalds 104857feb835STakashi Iwai pci_set_power_state(pci, PCI_D0); 104930b35399STakashi Iwai pci_restore_state(pci); 105030b35399STakashi Iwai if (pci_enable_device(pci) < 0) { 105130b35399STakashi Iwai printk(KERN_ERR "via82xx-modem: pci_enable_device failed, " 105230b35399STakashi Iwai "disabling device\n"); 105330b35399STakashi Iwai snd_card_disconnect(card); 105430b35399STakashi Iwai return -EIO; 105530b35399STakashi Iwai } 105657feb835STakashi Iwai pci_set_master(pci); 10571da177e4SLinus Torvalds 10581da177e4SLinus Torvalds snd_via82xx_chip_init(chip); 10591da177e4SLinus Torvalds 10601da177e4SLinus Torvalds snd_ac97_resume(chip->ac97); 10611da177e4SLinus Torvalds 10621da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10631da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10641da177e4SLinus Torvalds 106557feb835STakashi Iwai snd_power_change_state(card, SNDRV_CTL_POWER_D0); 10661da177e4SLinus Torvalds return 0; 10671da177e4SLinus Torvalds } 10681da177e4SLinus Torvalds #endif /* CONFIG_PM */ 10691da177e4SLinus Torvalds 1070e437e3d7STakashi Iwai static int snd_via82xx_free(struct via82xx_modem *chip) 10711da177e4SLinus Torvalds { 10721da177e4SLinus Torvalds unsigned int i; 10731da177e4SLinus Torvalds 10741da177e4SLinus Torvalds if (chip->irq < 0) 10751da177e4SLinus Torvalds goto __end_hw; 10761da177e4SLinus Torvalds /* disable interrupts */ 10771da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 10781da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 10791da177e4SLinus Torvalds synchronize_irq(chip->irq); 10801da177e4SLinus Torvalds __end_hw: 10811da177e4SLinus Torvalds if (chip->irq >= 0) 1082e437e3d7STakashi Iwai free_irq(chip->irq, chip); 10831da177e4SLinus Torvalds pci_release_regions(chip->pci); 10841da177e4SLinus Torvalds pci_disable_device(chip->pci); 10851da177e4SLinus Torvalds kfree(chip); 10861da177e4SLinus Torvalds return 0; 10871da177e4SLinus Torvalds } 10881da177e4SLinus Torvalds 1089e437e3d7STakashi Iwai static int snd_via82xx_dev_free(struct snd_device *device) 10901da177e4SLinus Torvalds { 1091e437e3d7STakashi Iwai struct via82xx_modem *chip = device->device_data; 10921da177e4SLinus Torvalds return snd_via82xx_free(chip); 10931da177e4SLinus Torvalds } 10941da177e4SLinus Torvalds 1095e437e3d7STakashi Iwai static int __devinit snd_via82xx_create(struct snd_card *card, 10961da177e4SLinus Torvalds struct pci_dev *pci, 10971da177e4SLinus Torvalds int chip_type, 10981da177e4SLinus Torvalds int revision, 10991da177e4SLinus Torvalds unsigned int ac97_clock, 1100e437e3d7STakashi Iwai struct via82xx_modem ** r_via) 11011da177e4SLinus Torvalds { 1102e437e3d7STakashi Iwai struct via82xx_modem *chip; 11031da177e4SLinus Torvalds int err; 1104e437e3d7STakashi Iwai static struct snd_device_ops ops = { 11051da177e4SLinus Torvalds .dev_free = snd_via82xx_dev_free, 11061da177e4SLinus Torvalds }; 11071da177e4SLinus Torvalds 11081da177e4SLinus Torvalds if ((err = pci_enable_device(pci)) < 0) 11091da177e4SLinus Torvalds return err; 11101da177e4SLinus Torvalds 1111e560d8d8STakashi Iwai if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) { 11121da177e4SLinus Torvalds pci_disable_device(pci); 11131da177e4SLinus Torvalds return -ENOMEM; 11141da177e4SLinus Torvalds } 11151da177e4SLinus Torvalds 11161da177e4SLinus Torvalds spin_lock_init(&chip->reg_lock); 11171da177e4SLinus Torvalds chip->card = card; 11181da177e4SLinus Torvalds chip->pci = pci; 11191da177e4SLinus Torvalds chip->irq = -1; 11201da177e4SLinus Torvalds 11211da177e4SLinus Torvalds if ((err = pci_request_regions(pci, card->driver)) < 0) { 11221da177e4SLinus Torvalds kfree(chip); 11231da177e4SLinus Torvalds pci_disable_device(pci); 11241da177e4SLinus Torvalds return err; 11251da177e4SLinus Torvalds } 11261da177e4SLinus Torvalds chip->port = pci_resource_start(pci, 0); 1127437a5a46STakashi Iwai if (request_irq(pci->irq, snd_via82xx_interrupt, IRQF_SHARED, 1128e437e3d7STakashi Iwai card->driver, chip)) { 112999b359baSTakashi Iwai snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); 11301da177e4SLinus Torvalds snd_via82xx_free(chip); 11311da177e4SLinus Torvalds return -EBUSY; 11321da177e4SLinus Torvalds } 11331da177e4SLinus Torvalds chip->irq = pci->irq; 11341da177e4SLinus Torvalds if (ac97_clock >= 8000 && ac97_clock <= 48000) 11351da177e4SLinus Torvalds chip->ac97_clock = ac97_clock; 11361da177e4SLinus Torvalds synchronize_irq(chip->irq); 11371da177e4SLinus Torvalds 11381da177e4SLinus Torvalds if ((err = snd_via82xx_chip_init(chip)) < 0) { 11391da177e4SLinus Torvalds snd_via82xx_free(chip); 11401da177e4SLinus Torvalds return err; 11411da177e4SLinus Torvalds } 11421da177e4SLinus Torvalds 11431da177e4SLinus Torvalds if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 11441da177e4SLinus Torvalds snd_via82xx_free(chip); 11451da177e4SLinus Torvalds return err; 11461da177e4SLinus Torvalds } 11471da177e4SLinus Torvalds 11481da177e4SLinus Torvalds /* The 8233 ac97 controller does not implement the master bit 11491da177e4SLinus Torvalds * in the pci command register. IMHO this is a violation of the PCI spec. 11501da177e4SLinus Torvalds * We call pci_set_master here because it does not hurt. */ 11511da177e4SLinus Torvalds pci_set_master(pci); 11521da177e4SLinus Torvalds 11531da177e4SLinus Torvalds snd_card_set_dev(card, &pci->dev); 11541da177e4SLinus Torvalds 11551da177e4SLinus Torvalds *r_via = chip; 11561da177e4SLinus Torvalds return 0; 11571da177e4SLinus Torvalds } 11581da177e4SLinus Torvalds 11591da177e4SLinus Torvalds 11601da177e4SLinus Torvalds static int __devinit snd_via82xx_probe(struct pci_dev *pci, 11611da177e4SLinus Torvalds const struct pci_device_id *pci_id) 11621da177e4SLinus Torvalds { 1163e437e3d7STakashi Iwai struct snd_card *card; 1164e437e3d7STakashi Iwai struct via82xx_modem *chip; 11651da177e4SLinus Torvalds unsigned char revision; 11661da177e4SLinus Torvalds int chip_type = 0, card_type; 11671da177e4SLinus Torvalds unsigned int i; 11681da177e4SLinus Torvalds int err; 11691da177e4SLinus Torvalds 1170b7fe4622SClemens Ladisch card = snd_card_new(index, id, THIS_MODULE, 0); 11711da177e4SLinus Torvalds if (card == NULL) 11721da177e4SLinus Torvalds return -ENOMEM; 11731da177e4SLinus Torvalds 11741da177e4SLinus Torvalds card_type = pci_id->driver_data; 11751da177e4SLinus Torvalds pci_read_config_byte(pci, PCI_REVISION_ID, &revision); 11761da177e4SLinus Torvalds switch (card_type) { 11771da177e4SLinus Torvalds case TYPE_CARD_VIA82XX_MODEM: 11781da177e4SLinus Torvalds strcpy(card->driver, "VIA82XX-MODEM"); 11791da177e4SLinus Torvalds sprintf(card->shortname, "VIA 82XX modem"); 11801da177e4SLinus Torvalds break; 11811da177e4SLinus Torvalds default: 11821da177e4SLinus Torvalds snd_printk(KERN_ERR "invalid card type %d\n", card_type); 11831da177e4SLinus Torvalds err = -EINVAL; 11841da177e4SLinus Torvalds goto __error; 11851da177e4SLinus Torvalds } 11861da177e4SLinus Torvalds 1187b7fe4622SClemens Ladisch if ((err = snd_via82xx_create(card, pci, chip_type, revision, 1188b7fe4622SClemens Ladisch ac97_clock, &chip)) < 0) 11891da177e4SLinus Torvalds goto __error; 119057feb835STakashi Iwai card->private_data = chip; 11911da177e4SLinus Torvalds if ((err = snd_via82xx_mixer_new(chip)) < 0) 11921da177e4SLinus Torvalds goto __error; 11931da177e4SLinus Torvalds 11941da177e4SLinus Torvalds if ((err = snd_via686_pcm_new(chip)) < 0 ) 11951da177e4SLinus Torvalds goto __error; 11961da177e4SLinus Torvalds 11971da177e4SLinus Torvalds /* disable interrupts */ 11981da177e4SLinus Torvalds for (i = 0; i < chip->num_devs; i++) 11991da177e4SLinus Torvalds snd_via82xx_channel_reset(chip, &chip->devs[i]); 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvalds sprintf(card->longname, "%s at 0x%lx, irq %d", 12021da177e4SLinus Torvalds card->shortname, chip->port, chip->irq); 12031da177e4SLinus Torvalds 12041da177e4SLinus Torvalds snd_via82xx_proc_init(chip); 12051da177e4SLinus Torvalds 12061da177e4SLinus Torvalds if ((err = snd_card_register(card)) < 0) { 12071da177e4SLinus Torvalds snd_card_free(card); 12081da177e4SLinus Torvalds return err; 12091da177e4SLinus Torvalds } 12101da177e4SLinus Torvalds pci_set_drvdata(pci, card); 12111da177e4SLinus Torvalds return 0; 12121da177e4SLinus Torvalds 12131da177e4SLinus Torvalds __error: 12141da177e4SLinus Torvalds snd_card_free(card); 12151da177e4SLinus Torvalds return err; 12161da177e4SLinus Torvalds } 12171da177e4SLinus Torvalds 12181da177e4SLinus Torvalds static void __devexit snd_via82xx_remove(struct pci_dev *pci) 12191da177e4SLinus Torvalds { 12201da177e4SLinus Torvalds snd_card_free(pci_get_drvdata(pci)); 12211da177e4SLinus Torvalds pci_set_drvdata(pci, NULL); 12221da177e4SLinus Torvalds } 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds static struct pci_driver driver = { 12251da177e4SLinus Torvalds .name = "VIA 82xx Modem", 12261da177e4SLinus Torvalds .id_table = snd_via82xx_modem_ids, 12271da177e4SLinus Torvalds .probe = snd_via82xx_probe, 12281da177e4SLinus Torvalds .remove = __devexit_p(snd_via82xx_remove), 122957feb835STakashi Iwai #ifdef CONFIG_PM 123057feb835STakashi Iwai .suspend = snd_via82xx_suspend, 123157feb835STakashi Iwai .resume = snd_via82xx_resume, 123257feb835STakashi Iwai #endif 12331da177e4SLinus Torvalds }; 12341da177e4SLinus Torvalds 12351da177e4SLinus Torvalds static int __init alsa_card_via82xx_init(void) 12361da177e4SLinus Torvalds { 123701d25d46STakashi Iwai return pci_register_driver(&driver); 12381da177e4SLinus Torvalds } 12391da177e4SLinus Torvalds 12401da177e4SLinus Torvalds static void __exit alsa_card_via82xx_exit(void) 12411da177e4SLinus Torvalds { 12421da177e4SLinus Torvalds pci_unregister_driver(&driver); 12431da177e4SLinus Torvalds } 12441da177e4SLinus Torvalds 12451da177e4SLinus Torvalds module_init(alsa_card_via82xx_init) 12461da177e4SLinus Torvalds module_exit(alsa_card_via82xx_exit) 1247