Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ALSA modem driver for VIA VT82xx (South Bridge) |
| 3 | * |
| 4 | * VT82C686A/B/C, VT8233A/C, VT8235 |
| 5 | * |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 6 | * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com> |
| 8 | * 2002 Takashi Iwai <tiwai@suse.de> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * Changes: |
| 28 | * |
Sasha Khapyorsky | f01cc52 | 2005-10-10 11:45:31 +0200 | [diff] [blame] | 29 | * Sep. 2, 2004 Sasha Khapyorsky <sashak@alsa-project.org> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | * Modified from original audio driver 'via82xx.c' to support AC97 |
| 31 | * modems. |
| 32 | */ |
| 33 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <asm/io.h> |
| 35 | #include <linux/delay.h> |
| 36 | #include <linux/interrupt.h> |
| 37 | #include <linux/init.h> |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/slab.h> |
Paul Gortmaker | 65a7721 | 2011-07-15 13:13:37 -0400 | [diff] [blame] | 40 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include <sound/core.h> |
| 42 | #include <sound/pcm.h> |
| 43 | #include <sound/pcm_params.h> |
| 44 | #include <sound/info.h> |
| 45 | #include <sound/ac97_codec.h> |
| 46 | #include <sound/initval.h> |
| 47 | |
| 48 | #if 0 |
| 49 | #define POINTER_DEBUG |
| 50 | #endif |
| 51 | |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 52 | MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | MODULE_DESCRIPTION("VIA VT82xx modem"); |
| 54 | MODULE_LICENSE("GPL"); |
| 55 | MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C modem,pci}}"); |
| 56 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 57 | static int index = -2; /* Exclude the first card */ |
| 58 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ |
| 59 | static int ac97_clock = 48000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 61 | module_param(index, int, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge."); |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 63 | module_param(id, charp, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge."); |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 65 | module_param(ac97_clock, int, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); |
| 67 | |
Takashi Iwai | 2b3e584 | 2005-10-06 13:47:23 +0200 | [diff] [blame] | 68 | /* just for backward compatibility */ |
Rusty Russell | a67ff6a | 2011-12-15 13:49:36 +1030 | [diff] [blame] | 69 | static bool enable; |
Takashi Iwai | 698444f | 2005-10-20 16:53:49 +0200 | [diff] [blame] | 70 | module_param(enable, bool, 0444); |
Takashi Iwai | 2b3e584 | 2005-10-06 13:47:23 +0200 | [diff] [blame] | 71 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
| 73 | /* |
| 74 | * Direct registers |
| 75 | */ |
| 76 | |
| 77 | #define VIAREG(via, x) ((via)->port + VIA_REG_##x) |
| 78 | #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x) |
| 79 | |
| 80 | /* common offsets */ |
| 81 | #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */ |
| 82 | #define VIA_REG_STAT_ACTIVE 0x80 /* RO */ |
| 83 | #define VIA_REG_STAT_PAUSED 0x40 /* RO */ |
| 84 | #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */ |
| 85 | #define VIA_REG_STAT_STOPPED 0x04 /* RWC */ |
| 86 | #define VIA_REG_STAT_EOL 0x02 /* RWC */ |
| 87 | #define VIA_REG_STAT_FLAG 0x01 /* RWC */ |
| 88 | #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */ |
| 89 | #define VIA_REG_CTRL_START 0x80 /* WO */ |
| 90 | #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */ |
| 91 | #define VIA_REG_CTRL_AUTOSTART 0x20 |
| 92 | #define VIA_REG_CTRL_PAUSE 0x08 /* RW */ |
| 93 | #define VIA_REG_CTRL_INT_STOP 0x04 |
| 94 | #define VIA_REG_CTRL_INT_EOL 0x02 |
| 95 | #define VIA_REG_CTRL_INT_FLAG 0x01 |
| 96 | #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */ |
| 97 | #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART) |
| 98 | #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */ |
| 99 | #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */ |
| 100 | #define VIA_REG_TYPE_16BIT 0x20 /* RW */ |
| 101 | #define VIA_REG_TYPE_STEREO 0x10 /* RW */ |
| 102 | #define VIA_REG_TYPE_INT_LLINE 0x00 |
| 103 | #define VIA_REG_TYPE_INT_LSAMPLE 0x04 |
| 104 | #define VIA_REG_TYPE_INT_LESSONE 0x08 |
| 105 | #define VIA_REG_TYPE_INT_MASK 0x0c |
| 106 | #define VIA_REG_TYPE_INT_EOL 0x02 |
| 107 | #define VIA_REG_TYPE_INT_FLAG 0x01 |
| 108 | #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */ |
| 109 | #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */ |
| 110 | #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */ |
| 111 | #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */ |
| 112 | #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */ |
| 113 | |
| 114 | #define DEFINE_VIA_REGSET(name,val) \ |
| 115 | enum {\ |
| 116 | VIA_REG_##name##_STATUS = (val),\ |
| 117 | VIA_REG_##name##_CONTROL = (val) + 0x01,\ |
| 118 | VIA_REG_##name##_TYPE = (val) + 0x02,\ |
| 119 | VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\ |
| 120 | VIA_REG_##name##_CURR_PTR = (val) + 0x04,\ |
| 121 | VIA_REG_##name##_STOP_IDX = (val) + 0x08,\ |
| 122 | VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\ |
| 123 | } |
| 124 | |
| 125 | /* modem block */ |
| 126 | DEFINE_VIA_REGSET(MO, 0x40); |
| 127 | DEFINE_VIA_REGSET(MI, 0x50); |
| 128 | |
| 129 | /* AC'97 */ |
| 130 | #define VIA_REG_AC97 0x80 /* dword */ |
| 131 | #define VIA_REG_AC97_CODEC_ID_MASK (3<<30) |
| 132 | #define VIA_REG_AC97_CODEC_ID_SHIFT 30 |
| 133 | #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00 |
| 134 | #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01 |
| 135 | #define VIA_REG_AC97_SECONDARY_VALID (1<<27) |
| 136 | #define VIA_REG_AC97_PRIMARY_VALID (1<<25) |
| 137 | #define VIA_REG_AC97_BUSY (1<<24) |
| 138 | #define VIA_REG_AC97_READ (1<<23) |
| 139 | #define VIA_REG_AC97_CMD_SHIFT 16 |
| 140 | #define VIA_REG_AC97_CMD_MASK 0x7e |
| 141 | #define VIA_REG_AC97_DATA_SHIFT 0 |
| 142 | #define VIA_REG_AC97_DATA_MASK 0xffff |
| 143 | |
| 144 | #define VIA_REG_SGD_SHADOW 0x84 /* dword */ |
| 145 | #define VIA_REG_SGD_STAT_PB_FLAG (1<<0) |
| 146 | #define VIA_REG_SGD_STAT_CP_FLAG (1<<1) |
| 147 | #define VIA_REG_SGD_STAT_FM_FLAG (1<<2) |
| 148 | #define VIA_REG_SGD_STAT_PB_EOL (1<<4) |
| 149 | #define VIA_REG_SGD_STAT_CP_EOL (1<<5) |
| 150 | #define VIA_REG_SGD_STAT_FM_EOL (1<<6) |
| 151 | #define VIA_REG_SGD_STAT_PB_STOP (1<<8) |
| 152 | #define VIA_REG_SGD_STAT_CP_STOP (1<<9) |
| 153 | #define VIA_REG_SGD_STAT_FM_STOP (1<<10) |
| 154 | #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12) |
| 155 | #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13) |
| 156 | #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14) |
| 157 | #define VIA_REG_SGD_STAT_MR_FLAG (1<<16) |
| 158 | #define VIA_REG_SGD_STAT_MW_FLAG (1<<17) |
| 159 | #define VIA_REG_SGD_STAT_MR_EOL (1<<20) |
| 160 | #define VIA_REG_SGD_STAT_MW_EOL (1<<21) |
| 161 | #define VIA_REG_SGD_STAT_MR_STOP (1<<24) |
| 162 | #define VIA_REG_SGD_STAT_MW_STOP (1<<25) |
| 163 | #define VIA_REG_SGD_STAT_MR_ACTIVE (1<<28) |
| 164 | #define VIA_REG_SGD_STAT_MW_ACTIVE (1<<29) |
| 165 | |
| 166 | #define VIA_REG_GPI_STATUS 0x88 |
| 167 | #define VIA_REG_GPI_INTR 0x8c |
| 168 | |
| 169 | #define VIA_TBL_BIT_FLAG 0x40000000 |
| 170 | #define VIA_TBL_BIT_EOL 0x80000000 |
| 171 | |
| 172 | /* pci space */ |
| 173 | #define VIA_ACLINK_STAT 0x40 |
| 174 | #define VIA_ACLINK_C11_READY 0x20 |
| 175 | #define VIA_ACLINK_C10_READY 0x10 |
| 176 | #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */ |
| 177 | #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */ |
| 178 | #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */ |
| 179 | #define VIA_ACLINK_CTRL 0x41 |
| 180 | #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */ |
| 181 | #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */ |
| 182 | #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */ |
| 183 | #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */ |
| 184 | #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */ |
| 185 | #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */ |
| 186 | #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */ |
| 187 | #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */ |
| 188 | #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\ |
| 189 | VIA_ACLINK_CTRL_RESET|\ |
| 190 | VIA_ACLINK_CTRL_PCM) |
| 191 | #define VIA_FUNC_ENABLE 0x42 |
| 192 | #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */ |
| 193 | #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */ |
| 194 | #define VIA_FUNC_RX2C_WRITE 0x20 |
| 195 | #define VIA_FUNC_SB_FIFO_EMPTY 0x10 |
| 196 | #define VIA_FUNC_ENABLE_GAME 0x08 |
| 197 | #define VIA_FUNC_ENABLE_FM 0x04 |
| 198 | #define VIA_FUNC_ENABLE_MIDI 0x02 |
| 199 | #define VIA_FUNC_ENABLE_SB 0x01 |
| 200 | #define VIA_PNP_CONTROL 0x43 |
| 201 | #define VIA_MC97_CTRL 0x44 |
| 202 | #define VIA_MC97_CTRL_ENABLE 0x80 |
| 203 | #define VIA_MC97_CTRL_SECONDARY 0x40 |
| 204 | #define VIA_MC97_CTRL_INIT (VIA_MC97_CTRL_ENABLE|\ |
| 205 | VIA_MC97_CTRL_SECONDARY) |
| 206 | |
| 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | /* |
| 209 | * pcm stream |
| 210 | */ |
| 211 | |
| 212 | struct snd_via_sg_table { |
| 213 | unsigned int offset; |
| 214 | unsigned int size; |
| 215 | } ; |
| 216 | |
| 217 | #define VIA_TABLE_SIZE 255 |
| 218 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 219 | struct viadev { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | unsigned int reg_offset; |
| 221 | unsigned long port; |
| 222 | int direction; /* playback = 0, capture = 1 */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 223 | struct snd_pcm_substream *substream; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | int running; |
| 225 | unsigned int tbl_entries; /* # descriptors */ |
| 226 | struct snd_dma_buffer table; |
| 227 | struct snd_via_sg_table *idx_table; |
| 228 | /* for recovery from the unexpected pointer */ |
| 229 | unsigned int lastpos; |
| 230 | unsigned int bufsize; |
| 231 | unsigned int bufsize2; |
| 232 | }; |
| 233 | |
| 234 | enum { TYPE_CARD_VIA82XX_MODEM = 1 }; |
| 235 | |
| 236 | #define VIA_MAX_MODEM_DEVS 2 |
| 237 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 238 | struct via82xx_modem { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | int irq; |
| 240 | |
| 241 | unsigned long port; |
| 242 | |
| 243 | unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */ |
| 244 | |
| 245 | struct pci_dev *pci; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 246 | struct snd_card *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
| 248 | unsigned int num_devs; |
| 249 | unsigned int playback_devno, capture_devno; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 250 | struct viadev devs[VIA_MAX_MODEM_DEVS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 252 | struct snd_pcm *pcms[2]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 254 | struct snd_ac97_bus *ac97_bus; |
| 255 | struct snd_ac97 *ac97; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | unsigned int ac97_clock; |
| 257 | unsigned int ac97_secondary; /* secondary AC'97 codec is present */ |
| 258 | |
| 259 | spinlock_t reg_lock; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 260 | struct snd_info_entry *proc_entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | }; |
| 262 | |
Alexey Dobriyan | cebe41d | 2010-02-06 00:21:03 +0200 | [diff] [blame] | 263 | static DEFINE_PCI_DEVICE_TABLE(snd_via82xx_modem_ids) = { |
Joe Perches | 28d27aa | 2009-06-24 22:13:35 -0700 | [diff] [blame] | 264 | { PCI_VDEVICE(VIA, 0x3068), TYPE_CARD_VIA82XX_MODEM, }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | { 0, } |
| 266 | }; |
| 267 | |
| 268 | MODULE_DEVICE_TABLE(pci, snd_via82xx_modem_ids); |
| 269 | |
| 270 | /* |
| 271 | */ |
| 272 | |
| 273 | /* |
| 274 | * allocate and initialize the descriptor buffers |
| 275 | * periods = number of periods |
| 276 | * fragsize = period size in bytes |
| 277 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 278 | static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | struct pci_dev *pci, |
| 280 | unsigned int periods, unsigned int fragsize) |
| 281 | { |
| 282 | unsigned int i, idx, ofs, rest; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 283 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
| 285 | if (dev->table.area == NULL) { |
| 286 | /* the start of each lists must be aligned to 8 bytes, |
| 287 | * but the kernel pages are much bigger, so we don't care |
| 288 | */ |
| 289 | if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| 290 | PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8), |
| 291 | &dev->table) < 0) |
| 292 | return -ENOMEM; |
| 293 | } |
| 294 | if (! dev->idx_table) { |
| 295 | dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL); |
| 296 | if (! dev->idx_table) |
| 297 | return -ENOMEM; |
| 298 | } |
| 299 | |
| 300 | /* fill the entries */ |
| 301 | idx = 0; |
| 302 | ofs = 0; |
| 303 | for (i = 0; i < periods; i++) { |
| 304 | rest = fragsize; |
| 305 | /* fill descriptors for a period. |
| 306 | * a period can be split to several descriptors if it's |
| 307 | * over page boundary. |
| 308 | */ |
| 309 | do { |
| 310 | unsigned int r; |
| 311 | unsigned int flag; |
Takashi Iwai | 77a23f2 | 2008-08-21 13:00:13 +0200 | [diff] [blame] | 312 | unsigned int addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
| 314 | if (idx >= VIA_TABLE_SIZE) { |
| 315 | snd_printk(KERN_ERR "via82xx: too much table size!\n"); |
| 316 | return -EINVAL; |
| 317 | } |
Takashi Iwai | 77a23f2 | 2008-08-21 13:00:13 +0200 | [diff] [blame] | 318 | addr = snd_pcm_sgbuf_get_addr(substream, ofs); |
| 319 | ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | r = PAGE_SIZE - (ofs % PAGE_SIZE); |
| 321 | if (rest < r) |
| 322 | r = rest; |
| 323 | rest -= r; |
| 324 | if (! rest) { |
| 325 | if (i == periods - 1) |
| 326 | flag = VIA_TBL_BIT_EOL; /* buffer boundary */ |
| 327 | else |
| 328 | flag = VIA_TBL_BIT_FLAG; /* period boundary */ |
| 329 | } else |
| 330 | flag = 0; /* period continues to the next */ |
Takashi Iwai | ee41965 | 2009-02-05 16:11:31 +0100 | [diff] [blame] | 331 | /* |
| 332 | printk(KERN_DEBUG "via: tbl %d: at %d size %d " |
| 333 | "(rest %d)\n", idx, ofs, r, rest); |
| 334 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag); |
| 336 | dev->idx_table[idx].offset = ofs; |
| 337 | dev->idx_table[idx].size = r; |
| 338 | ofs += r; |
| 339 | idx++; |
| 340 | } while (rest > 0); |
| 341 | } |
| 342 | dev->tbl_entries = idx; |
| 343 | dev->bufsize = periods * fragsize; |
| 344 | dev->bufsize2 = dev->bufsize / 2; |
| 345 | return 0; |
| 346 | } |
| 347 | |
| 348 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 349 | static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | struct pci_dev *pci) |
| 351 | { |
| 352 | if (dev->table.area) { |
| 353 | snd_dma_free_pages(&dev->table); |
| 354 | dev->table.area = NULL; |
| 355 | } |
Jesper Juhl | 4d57277 | 2005-05-30 17:30:32 +0200 | [diff] [blame] | 356 | kfree(dev->idx_table); |
| 357 | dev->idx_table = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | return 0; |
| 359 | } |
| 360 | |
| 361 | /* |
| 362 | * Basic I/O |
| 363 | */ |
| 364 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 365 | static inline unsigned int snd_via82xx_codec_xread(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | { |
| 367 | return inl(VIAREG(chip, AC97)); |
| 368 | } |
| 369 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 370 | static inline void snd_via82xx_codec_xwrite(struct via82xx_modem *chip, unsigned int val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | { |
| 372 | outl(val, VIAREG(chip, AC97)); |
| 373 | } |
| 374 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 375 | static int snd_via82xx_codec_ready(struct via82xx_modem *chip, int secondary) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | { |
| 377 | unsigned int timeout = 1000; /* 1ms */ |
| 378 | unsigned int val; |
| 379 | |
| 380 | while (timeout-- > 0) { |
| 381 | udelay(1); |
| 382 | if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)) |
| 383 | return val & 0xffff; |
| 384 | } |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 385 | snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", |
| 386 | secondary, snd_via82xx_codec_xread(chip)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | return -EIO; |
| 388 | } |
| 389 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 390 | static int snd_via82xx_codec_valid(struct via82xx_modem *chip, int secondary) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | { |
| 392 | unsigned int timeout = 1000; /* 1ms */ |
| 393 | unsigned int val, val1; |
| 394 | unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID : |
| 395 | VIA_REG_AC97_SECONDARY_VALID; |
| 396 | |
| 397 | while (timeout-- > 0) { |
| 398 | val = snd_via82xx_codec_xread(chip); |
| 399 | val1 = val & (VIA_REG_AC97_BUSY | stat); |
| 400 | if (val1 == stat) |
| 401 | return val & 0xffff; |
| 402 | udelay(1); |
| 403 | } |
| 404 | return -EIO; |
| 405 | } |
| 406 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 407 | static void snd_via82xx_codec_wait(struct snd_ac97 *ac97) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 409 | struct via82xx_modem *chip = ac97->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | int err; |
| 411 | err = snd_via82xx_codec_ready(chip, ac97->num); |
| 412 | /* here we need to wait fairly for long time.. */ |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 413 | msleep(500); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | } |
| 415 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 416 | static void snd_via82xx_codec_write(struct snd_ac97 *ac97, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | unsigned short reg, |
| 418 | unsigned short val) |
| 419 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 420 | struct via82xx_modem *chip = ac97->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | unsigned int xval; |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 422 | if(reg == AC97_GPIO_STATUS) { |
| 423 | outl(val, VIAREG(chip, GPI_STATUS)); |
| 424 | return; |
| 425 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 426 | xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY; |
| 427 | xval <<= VIA_REG_AC97_CODEC_ID_SHIFT; |
| 428 | xval |= reg << VIA_REG_AC97_CMD_SHIFT; |
| 429 | xval |= val << VIA_REG_AC97_DATA_SHIFT; |
| 430 | snd_via82xx_codec_xwrite(chip, xval); |
| 431 | snd_via82xx_codec_ready(chip, ac97->num); |
| 432 | } |
| 433 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 434 | static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 436 | struct via82xx_modem *chip = ac97->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | unsigned int xval, val = 0xffff; |
| 438 | int again = 0; |
| 439 | |
| 440 | xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT; |
| 441 | xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID; |
| 442 | xval |= VIA_REG_AC97_READ; |
| 443 | xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT; |
| 444 | while (1) { |
| 445 | if (again++ > 3) { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 446 | snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", |
| 447 | ac97->num, snd_via82xx_codec_xread(chip)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | return 0xffff; |
| 449 | } |
| 450 | snd_via82xx_codec_xwrite(chip, xval); |
| 451 | udelay (20); |
| 452 | if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) { |
| 453 | udelay(25); |
| 454 | val = snd_via82xx_codec_xread(chip); |
| 455 | break; |
| 456 | } |
| 457 | } |
| 458 | return val & 0xffff; |
| 459 | } |
| 460 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 461 | static void snd_via82xx_channel_reset(struct via82xx_modem *chip, struct viadev *viadev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | { |
| 463 | outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, |
| 464 | VIADEV_REG(viadev, OFFSET_CONTROL)); |
| 465 | inb(VIADEV_REG(viadev, OFFSET_CONTROL)); |
| 466 | udelay(50); |
| 467 | /* disable interrupts */ |
| 468 | outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL)); |
| 469 | /* clear interrupts */ |
| 470 | outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS)); |
| 471 | outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */ |
| 472 | // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR)); |
| 473 | viadev->lastpos = 0; |
| 474 | } |
| 475 | |
| 476 | |
| 477 | /* |
| 478 | * Interrupt handler |
| 479 | */ |
| 480 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 481 | static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 483 | struct via82xx_modem *chip = dev_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | unsigned int status; |
| 485 | unsigned int i; |
| 486 | |
| 487 | status = inl(VIAREG(chip, SGD_SHADOW)); |
| 488 | if (! (status & chip->intr_mask)) { |
| 489 | return IRQ_NONE; |
| 490 | } |
| 491 | // _skip_sgd: |
| 492 | |
| 493 | /* check status for each stream */ |
| 494 | spin_lock(&chip->reg_lock); |
| 495 | for (i = 0; i < chip->num_devs; i++) { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 496 | struct viadev *viadev = &chip->devs[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS)); |
| 498 | c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED); |
| 499 | if (! c_status) |
| 500 | continue; |
| 501 | if (viadev->substream && viadev->running) { |
| 502 | spin_unlock(&chip->reg_lock); |
| 503 | snd_pcm_period_elapsed(viadev->substream); |
| 504 | spin_lock(&chip->reg_lock); |
| 505 | } |
| 506 | outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */ |
| 507 | } |
| 508 | spin_unlock(&chip->reg_lock); |
| 509 | return IRQ_HANDLED; |
| 510 | } |
| 511 | |
| 512 | /* |
| 513 | * PCM callbacks |
| 514 | */ |
| 515 | |
| 516 | /* |
| 517 | * trigger callback |
| 518 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 519 | static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 521 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 522 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | unsigned char val = 0; |
| 524 | |
| 525 | switch (cmd) { |
| 526 | case SNDRV_PCM_TRIGGER_START: |
Jaroslav Kysela | 41e4845 | 2005-08-18 13:43:12 +0200 | [diff] [blame] | 527 | case SNDRV_PCM_TRIGGER_SUSPEND: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | val |= VIA_REG_CTRL_START; |
| 529 | viadev->running = 1; |
| 530 | break; |
| 531 | case SNDRV_PCM_TRIGGER_STOP: |
| 532 | val = VIA_REG_CTRL_TERMINATE; |
| 533 | viadev->running = 0; |
| 534 | break; |
| 535 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| 536 | val |= VIA_REG_CTRL_PAUSE; |
| 537 | viadev->running = 0; |
| 538 | break; |
| 539 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| 540 | viadev->running = 1; |
| 541 | break; |
| 542 | default: |
| 543 | return -EINVAL; |
| 544 | } |
| 545 | outb(val, VIADEV_REG(viadev, OFFSET_CONTROL)); |
| 546 | if (cmd == SNDRV_PCM_TRIGGER_STOP) |
| 547 | snd_via82xx_channel_reset(chip, viadev); |
| 548 | return 0; |
| 549 | } |
| 550 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | /* |
| 552 | * pointer callbacks |
| 553 | */ |
| 554 | |
| 555 | /* |
| 556 | * calculate the linear position at the given sg-buffer index and the rest count |
| 557 | */ |
| 558 | |
| 559 | #define check_invalid_pos(viadev,pos) \ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 560 | ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\ |
| 561 | viadev->lastpos < viadev->bufsize2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 563 | static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx, |
| 564 | unsigned int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | { |
| 566 | unsigned int size, res; |
| 567 | |
| 568 | size = viadev->idx_table[idx].size; |
| 569 | res = viadev->idx_table[idx].offset + size - count; |
| 570 | |
| 571 | /* check the validity of the calculated position */ |
| 572 | if (size < count) { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 573 | snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", |
| 574 | (int)size, (int)count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | res = viadev->lastpos; |
| 576 | } else if (check_invalid_pos(viadev, res)) { |
| 577 | #ifdef POINTER_DEBUG |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 578 | printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, " |
| 579 | "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, " |
| 580 | "count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, |
| 581 | viadev->bufsize2, viadev->idx_table[idx].offset, |
| 582 | viadev->idx_table[idx].size, count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 583 | #endif |
| 584 | if (count && size < count) { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 585 | snd_printd(KERN_ERR "invalid via82xx_cur_ptr, " |
| 586 | "using last valid pointer\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | res = viadev->lastpos; |
| 588 | } else { |
| 589 | if (! count) |
| 590 | /* bogus count 0 on the DMA boundary? */ |
| 591 | res = viadev->idx_table[idx].offset; |
| 592 | else |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 593 | /* count register returns full size |
| 594 | * when end of buffer is reached |
| 595 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | res = viadev->idx_table[idx].offset + size; |
| 597 | if (check_invalid_pos(viadev, res)) { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 598 | snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), " |
| 599 | "using last valid pointer\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | res = viadev->lastpos; |
| 601 | } |
| 602 | } |
| 603 | } |
| 604 | viadev->lastpos = res; /* remember the last position */ |
| 605 | if (res >= viadev->bufsize) |
| 606 | res -= viadev->bufsize; |
| 607 | return res; |
| 608 | } |
| 609 | |
| 610 | /* |
| 611 | * get the current pointer on via686 |
| 612 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 613 | static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 615 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 616 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | unsigned int idx, ptr, count, res; |
| 618 | |
Takashi Iwai | da3cec3 | 2008-08-08 17:12:14 +0200 | [diff] [blame] | 619 | if (snd_BUG_ON(!viadev->tbl_entries)) |
| 620 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 621 | if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE)) |
| 622 | return 0; |
| 623 | |
| 624 | spin_lock(&chip->reg_lock); |
| 625 | count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff; |
| 626 | /* The via686a does not have the current index register, |
| 627 | * so we need to calculate the index from CURR_PTR. |
| 628 | */ |
| 629 | ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR)); |
| 630 | if (ptr <= (unsigned int)viadev->table.addr) |
| 631 | idx = 0; |
| 632 | else /* CURR_PTR holds the address + 8 */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 633 | idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % |
| 634 | viadev->tbl_entries; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 635 | res = calc_linear_pos(viadev, idx, count); |
| 636 | spin_unlock(&chip->reg_lock); |
| 637 | |
| 638 | return bytes_to_frames(substream->runtime, res); |
| 639 | } |
| 640 | |
| 641 | /* |
| 642 | * hw_params callback: |
| 643 | * allocate the buffer and build up the buffer description table |
| 644 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 645 | static int snd_via82xx_hw_params(struct snd_pcm_substream *substream, |
| 646 | struct snd_pcm_hw_params *hw_params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 648 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 649 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | int err; |
| 651 | |
| 652 | err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| 653 | if (err < 0) |
| 654 | return err; |
| 655 | err = build_via_table(viadev, substream, chip->pci, |
| 656 | params_periods(hw_params), |
| 657 | params_period_bytes(hw_params)); |
| 658 | if (err < 0) |
| 659 | return err; |
| 660 | |
| 661 | snd_ac97_write(chip->ac97, AC97_LINE1_RATE, params_rate(hw_params)); |
| 662 | snd_ac97_write(chip->ac97, AC97_LINE1_LEVEL, 0); |
| 663 | |
| 664 | return 0; |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | * hw_free callback: |
| 669 | * clean up the buffer description table and release the buffer |
| 670 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 671 | static int snd_via82xx_hw_free(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 673 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 674 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | |
| 676 | clean_via_table(viadev, substream, chip->pci); |
| 677 | snd_pcm_lib_free_pages(substream); |
| 678 | return 0; |
| 679 | } |
| 680 | |
| 681 | |
| 682 | /* |
| 683 | * set up the table pointer |
| 684 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 685 | static void snd_via82xx_set_table_ptr(struct via82xx_modem *chip, struct viadev *viadev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 686 | { |
| 687 | snd_via82xx_codec_ready(chip, chip->ac97_secondary); |
| 688 | outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR)); |
| 689 | udelay(20); |
| 690 | snd_via82xx_codec_ready(chip, chip->ac97_secondary); |
| 691 | } |
| 692 | |
| 693 | /* |
| 694 | * prepare callback for playback and capture |
| 695 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 696 | static int snd_via82xx_pcm_prepare(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 698 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 699 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
| 701 | snd_via82xx_channel_reset(chip, viadev); |
| 702 | /* this must be set after channel_reset */ |
| 703 | snd_via82xx_set_table_ptr(chip, viadev); |
| 704 | outb(VIA_REG_TYPE_AUTOSTART|VIA_REG_TYPE_INT_EOL|VIA_REG_TYPE_INT_FLAG, |
| 705 | VIADEV_REG(viadev, OFFSET_TYPE)); |
| 706 | return 0; |
| 707 | } |
| 708 | |
| 709 | /* |
| 710 | * pcm hardware definition, identical for both playback and capture |
| 711 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 712 | static struct snd_pcm_hardware snd_via82xx_hw = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | { |
| 714 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| 715 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 716 | SNDRV_PCM_INFO_MMAP_VALID | |
Jaroslav Kysela | 41e4845 | 2005-08-18 13:43:12 +0200 | [diff] [blame] | 717 | /* SNDRV_PCM_INFO_RESUME | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | SNDRV_PCM_INFO_PAUSE), |
| 719 | .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, |
| 720 | .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT, |
| 721 | .rate_min = 8000, |
| 722 | .rate_max = 16000, |
| 723 | .channels_min = 1, |
| 724 | .channels_max = 1, |
| 725 | .buffer_bytes_max = 128 * 1024, |
| 726 | .period_bytes_min = 32, |
| 727 | .period_bytes_max = 128 * 1024, |
| 728 | .periods_min = 2, |
| 729 | .periods_max = VIA_TABLE_SIZE / 2, |
| 730 | .fifo_size = 0, |
| 731 | }; |
| 732 | |
| 733 | |
| 734 | /* |
| 735 | * open callback skeleton |
| 736 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 737 | static int snd_via82xx_modem_pcm_open(struct via82xx_modem *chip, struct viadev *viadev, |
| 738 | struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 739 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 740 | struct snd_pcm_runtime *runtime = substream->runtime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | int err; |
| 742 | static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 743 | static struct snd_pcm_hw_constraint_list hw_constraints_rates = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 744 | .count = ARRAY_SIZE(rates), |
| 745 | .list = rates, |
| 746 | .mask = 0, |
| 747 | }; |
| 748 | |
| 749 | runtime->hw = snd_via82xx_hw; |
| 750 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 751 | if ((err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
| 752 | &hw_constraints_rates)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | return err; |
| 754 | |
| 755 | /* we may remove following constaint when we modify table entries |
| 756 | in interrupt */ |
| 757 | if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
| 758 | return err; |
| 759 | |
| 760 | runtime->private_data = viadev; |
| 761 | viadev->substream = substream; |
| 762 | |
| 763 | return 0; |
| 764 | } |
| 765 | |
| 766 | |
| 767 | /* |
| 768 | * open callback for playback |
| 769 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 770 | static int snd_via82xx_playback_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 772 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 773 | struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | |
| 775 | return snd_via82xx_modem_pcm_open(chip, viadev, substream); |
| 776 | } |
| 777 | |
| 778 | /* |
| 779 | * open callback for capture |
| 780 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 781 | static int snd_via82xx_capture_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 783 | struct via82xx_modem *chip = snd_pcm_substream_chip(substream); |
| 784 | struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
| 786 | return snd_via82xx_modem_pcm_open(chip, viadev, substream); |
| 787 | } |
| 788 | |
| 789 | /* |
| 790 | * close callback |
| 791 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 792 | static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 794 | struct viadev *viadev = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
| 796 | viadev->substream = NULL; |
| 797 | return 0; |
| 798 | } |
| 799 | |
| 800 | |
| 801 | /* via686 playback callbacks */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 802 | static struct snd_pcm_ops snd_via686_playback_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | .open = snd_via82xx_playback_open, |
| 804 | .close = snd_via82xx_pcm_close, |
| 805 | .ioctl = snd_pcm_lib_ioctl, |
| 806 | .hw_params = snd_via82xx_hw_params, |
| 807 | .hw_free = snd_via82xx_hw_free, |
| 808 | .prepare = snd_via82xx_pcm_prepare, |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 809 | .trigger = snd_via82xx_pcm_trigger, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | .pointer = snd_via686_pcm_pointer, |
| 811 | .page = snd_pcm_sgbuf_ops_page, |
| 812 | }; |
| 813 | |
| 814 | /* via686 capture callbacks */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 815 | static struct snd_pcm_ops snd_via686_capture_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | .open = snd_via82xx_capture_open, |
| 817 | .close = snd_via82xx_pcm_close, |
| 818 | .ioctl = snd_pcm_lib_ioctl, |
| 819 | .hw_params = snd_via82xx_hw_params, |
| 820 | .hw_free = snd_via82xx_hw_free, |
| 821 | .prepare = snd_via82xx_pcm_prepare, |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 822 | .trigger = snd_via82xx_pcm_trigger, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | .pointer = snd_via686_pcm_pointer, |
| 824 | .page = snd_pcm_sgbuf_ops_page, |
| 825 | }; |
| 826 | |
| 827 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 828 | static void init_viadev(struct via82xx_modem *chip, int idx, unsigned int reg_offset, |
| 829 | int direction) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | { |
| 831 | chip->devs[idx].reg_offset = reg_offset; |
| 832 | chip->devs[idx].direction = direction; |
| 833 | chip->devs[idx].port = chip->port + reg_offset; |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * create a pcm instance for via686a/b |
| 838 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 839 | static int __devinit snd_via686_pcm_new(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 841 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | int err; |
| 843 | |
| 844 | chip->playback_devno = 0; |
| 845 | chip->capture_devno = 1; |
| 846 | chip->num_devs = 2; |
| 847 | chip->intr_mask = 0x330000; /* FLAGS | EOL for MR, MW */ |
| 848 | |
| 849 | err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm); |
| 850 | if (err < 0) |
| 851 | return err; |
| 852 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops); |
| 853 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops); |
Sasha Khapyorsky | 6632d19 | 2005-09-29 11:48:17 +0200 | [diff] [blame] | 854 | pcm->dev_class = SNDRV_PCM_CLASS_MODEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | pcm->private_data = chip; |
| 856 | strcpy(pcm->name, chip->card->shortname); |
| 857 | chip->pcms[0] = pcm; |
| 858 | init_viadev(chip, 0, VIA_REG_MO_STATUS, 0); |
| 859 | init_viadev(chip, 1, VIA_REG_MI_STATUS, 1); |
| 860 | |
| 861 | if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 862 | snd_dma_pci_data(chip->pci), |
| 863 | 64*1024, 128*1024)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | return err; |
| 865 | |
| 866 | return 0; |
| 867 | } |
| 868 | |
| 869 | |
| 870 | /* |
| 871 | * Mixer part |
| 872 | */ |
| 873 | |
| 874 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 875 | static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 877 | struct via82xx_modem *chip = bus->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | chip->ac97_bus = NULL; |
| 879 | } |
| 880 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 881 | static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 883 | struct via82xx_modem *chip = ac97->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 884 | chip->ac97 = NULL; |
| 885 | } |
| 886 | |
| 887 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 888 | static int __devinit snd_via82xx_mixer_new(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 890 | struct snd_ac97_template ac97; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 891 | int err; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 892 | static struct snd_ac97_bus_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | .write = snd_via82xx_codec_write, |
| 894 | .read = snd_via82xx_codec_read, |
| 895 | .wait = snd_via82xx_codec_wait, |
| 896 | }; |
| 897 | |
| 898 | if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0) |
| 899 | return err; |
| 900 | chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus; |
| 901 | chip->ac97_bus->clock = chip->ac97_clock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | |
| 903 | memset(&ac97, 0, sizeof(ac97)); |
| 904 | ac97.private_data = chip; |
| 905 | ac97.private_free = snd_via82xx_mixer_free_ac97; |
| 906 | ac97.pci = chip->pci; |
Takashi Iwai | f1a63a3 | 2006-10-24 18:25:29 +0200 | [diff] [blame] | 907 | ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 908 | ac97.num = chip->ac97_secondary; |
| 909 | |
| 910 | if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0) |
| 911 | return err; |
| 912 | |
| 913 | return 0; |
| 914 | } |
| 915 | |
| 916 | |
| 917 | /* |
| 918 | * proc interface |
| 919 | */ |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 920 | static void snd_via82xx_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 922 | struct via82xx_modem *chip = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | int i; |
| 924 | |
| 925 | snd_iprintf(buffer, "%s\n\n", chip->card->longname); |
| 926 | for (i = 0; i < 0xa0; i += 4) { |
| 927 | snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i)); |
| 928 | } |
| 929 | } |
| 930 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 931 | static void __devinit snd_via82xx_proc_init(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 932 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 933 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | |
| 935 | if (! snd_card_proc_new(chip->card, "via82xx", &entry)) |
Takashi Iwai | bf85020 | 2006-04-28 15:13:41 +0200 | [diff] [blame] | 936 | snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | } |
| 938 | |
| 939 | /* |
| 940 | * |
| 941 | */ |
| 942 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 943 | static int snd_via82xx_chip_init(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | { |
| 945 | unsigned int val; |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 946 | unsigned long end_time; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | unsigned char pval; |
| 948 | |
| 949 | pci_read_config_byte(chip->pci, VIA_MC97_CTRL, &pval); |
| 950 | if((pval & VIA_MC97_CTRL_INIT) != VIA_MC97_CTRL_INIT) { |
| 951 | pci_write_config_byte(chip->pci, 0x44, pval|VIA_MC97_CTRL_INIT); |
| 952 | udelay(100); |
| 953 | } |
| 954 | |
| 955 | pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); |
| 956 | if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */ |
| 957 | /* deassert ACLink reset, force SYNC */ |
| 958 | pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, |
| 959 | VIA_ACLINK_CTRL_ENABLE | |
| 960 | VIA_ACLINK_CTRL_RESET | |
| 961 | VIA_ACLINK_CTRL_SYNC); |
| 962 | udelay(100); |
| 963 | #if 1 /* FIXME: should we do full reset here for all chip models? */ |
| 964 | pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00); |
| 965 | udelay(100); |
| 966 | #else |
| 967 | /* deassert ACLink reset, force SYNC (warm AC'97 reset) */ |
| 968 | pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, |
| 969 | VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC); |
| 970 | udelay(2); |
| 971 | #endif |
| 972 | /* ACLink on, deassert ACLink reset, VSR, SGD data out */ |
| 973 | pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); |
| 974 | udelay(100); |
| 975 | } |
| 976 | |
| 977 | pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval); |
| 978 | if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) { |
| 979 | /* ACLink on, deassert ACLink reset, VSR, SGD data out */ |
| 980 | pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT); |
| 981 | udelay(100); |
| 982 | } |
| 983 | |
| 984 | /* wait until codec ready */ |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 985 | end_time = jiffies + msecs_to_jiffies(750); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | do { |
| 987 | pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval); |
| 988 | if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */ |
| 989 | break; |
Rene Herman | d86d019 | 2007-09-18 18:10:49 +0200 | [diff] [blame] | 990 | schedule_timeout_uninterruptible(1); |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 991 | } while (time_before(jiffies, end_time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | |
| 993 | if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY) |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 994 | snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | |
| 996 | snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | |
| 997 | VIA_REG_AC97_SECONDARY_VALID | |
| 998 | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 999 | end_time = jiffies + msecs_to_jiffies(750); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ | |
| 1001 | VIA_REG_AC97_SECONDARY_VALID | |
| 1002 | (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT)); |
| 1003 | do { |
| 1004 | if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) { |
| 1005 | chip->ac97_secondary = 1; |
| 1006 | goto __ac97_ok2; |
| 1007 | } |
Rene Herman | d86d019 | 2007-09-18 18:10:49 +0200 | [diff] [blame] | 1008 | schedule_timeout_uninterruptible(1); |
Nishanth Aravamudan | ef21ca2 | 2005-07-09 10:13:22 +0200 | [diff] [blame] | 1009 | } while (time_before(jiffies, end_time)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | /* This is ok, the most of motherboards have only one codec */ |
| 1011 | |
| 1012 | __ac97_ok2: |
| 1013 | |
| 1014 | /* route FM trap to IRQ, disable FM trap */ |
| 1015 | // pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0); |
| 1016 | /* disable all GPI interrupts */ |
| 1017 | outl(0, VIAREG(chip, GPI_INTR)); |
| 1018 | |
| 1019 | return 0; |
| 1020 | } |
| 1021 | |
| 1022 | #ifdef CONFIG_PM |
| 1023 | /* |
| 1024 | * power management |
| 1025 | */ |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1026 | static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | { |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1028 | struct snd_card *card = pci_get_drvdata(pci); |
| 1029 | struct via82xx_modem *chip = card->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1030 | int i; |
| 1031 | |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1032 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1033 | for (i = 0; i < 2; i++) |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1034 | snd_pcm_suspend_all(chip->pcms[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | for (i = 0; i < chip->num_devs; i++) |
| 1036 | snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| 1037 | synchronize_irq(chip->irq); |
| 1038 | snd_ac97_suspend(chip->ac97); |
Takashi Iwai | 30b3539 | 2006-10-11 18:52:53 +0200 | [diff] [blame] | 1039 | |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1040 | pci_disable_device(pci); |
| 1041 | pci_save_state(pci); |
Takashi Iwai | 30b3539 | 2006-10-11 18:52:53 +0200 | [diff] [blame] | 1042 | pci_set_power_state(pci, pci_choose_state(pci, state)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | return 0; |
| 1044 | } |
| 1045 | |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1046 | static int snd_via82xx_resume(struct pci_dev *pci) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | { |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1048 | struct snd_card *card = pci_get_drvdata(pci); |
| 1049 | struct via82xx_modem *chip = card->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | int i; |
| 1051 | |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1052 | pci_set_power_state(pci, PCI_D0); |
Takashi Iwai | 30b3539 | 2006-10-11 18:52:53 +0200 | [diff] [blame] | 1053 | pci_restore_state(pci); |
| 1054 | if (pci_enable_device(pci) < 0) { |
| 1055 | printk(KERN_ERR "via82xx-modem: pci_enable_device failed, " |
| 1056 | "disabling device\n"); |
| 1057 | snd_card_disconnect(card); |
| 1058 | return -EIO; |
| 1059 | } |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1060 | pci_set_master(pci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
| 1062 | snd_via82xx_chip_init(chip); |
| 1063 | |
| 1064 | snd_ac97_resume(chip->ac97); |
| 1065 | |
| 1066 | for (i = 0; i < chip->num_devs; i++) |
| 1067 | snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| 1068 | |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1069 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1070 | return 0; |
| 1071 | } |
| 1072 | #endif /* CONFIG_PM */ |
| 1073 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1074 | static int snd_via82xx_free(struct via82xx_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1075 | { |
| 1076 | unsigned int i; |
| 1077 | |
| 1078 | if (chip->irq < 0) |
| 1079 | goto __end_hw; |
| 1080 | /* disable interrupts */ |
| 1081 | for (i = 0; i < chip->num_devs; i++) |
| 1082 | snd_via82xx_channel_reset(chip, &chip->devs[i]); |
Jeff Garzik | f000fd8 | 2008-04-22 13:50:34 +0200 | [diff] [blame] | 1083 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | __end_hw: |
| 1085 | if (chip->irq >= 0) |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1086 | free_irq(chip->irq, chip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1087 | pci_release_regions(chip->pci); |
| 1088 | pci_disable_device(chip->pci); |
| 1089 | kfree(chip); |
| 1090 | return 0; |
| 1091 | } |
| 1092 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1093 | static int snd_via82xx_dev_free(struct snd_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1095 | struct via82xx_modem *chip = device->device_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1096 | return snd_via82xx_free(chip); |
| 1097 | } |
| 1098 | |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1099 | static int __devinit snd_via82xx_create(struct snd_card *card, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | struct pci_dev *pci, |
| 1101 | int chip_type, |
| 1102 | int revision, |
| 1103 | unsigned int ac97_clock, |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1104 | struct via82xx_modem ** r_via) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1106 | struct via82xx_modem *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | int err; |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1108 | static struct snd_device_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | .dev_free = snd_via82xx_dev_free, |
| 1110 | }; |
| 1111 | |
| 1112 | if ((err = pci_enable_device(pci)) < 0) |
| 1113 | return err; |
| 1114 | |
Takashi Iwai | e560d8d | 2005-09-09 14:21:46 +0200 | [diff] [blame] | 1115 | if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1116 | pci_disable_device(pci); |
| 1117 | return -ENOMEM; |
| 1118 | } |
| 1119 | |
| 1120 | spin_lock_init(&chip->reg_lock); |
| 1121 | chip->card = card; |
| 1122 | chip->pci = pci; |
| 1123 | chip->irq = -1; |
| 1124 | |
| 1125 | if ((err = pci_request_regions(pci, card->driver)) < 0) { |
| 1126 | kfree(chip); |
| 1127 | pci_disable_device(pci); |
| 1128 | return err; |
| 1129 | } |
| 1130 | chip->port = pci_resource_start(pci, 0); |
Takashi Iwai | 437a5a4 | 2006-11-21 12:14:23 +0100 | [diff] [blame] | 1131 | if (request_irq(pci->irq, snd_via82xx_interrupt, IRQF_SHARED, |
Takashi Iwai | 934c2b6 | 2011-06-10 16:36:37 +0200 | [diff] [blame] | 1132 | KBUILD_MODNAME, chip)) { |
Takashi Iwai | 99b359b | 2005-10-20 18:26:44 +0200 | [diff] [blame] | 1133 | snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1134 | snd_via82xx_free(chip); |
| 1135 | return -EBUSY; |
| 1136 | } |
| 1137 | chip->irq = pci->irq; |
| 1138 | if (ac97_clock >= 8000 && ac97_clock <= 48000) |
| 1139 | chip->ac97_clock = ac97_clock; |
| 1140 | synchronize_irq(chip->irq); |
| 1141 | |
| 1142 | if ((err = snd_via82xx_chip_init(chip)) < 0) { |
| 1143 | snd_via82xx_free(chip); |
| 1144 | return err; |
| 1145 | } |
| 1146 | |
| 1147 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| 1148 | snd_via82xx_free(chip); |
| 1149 | return err; |
| 1150 | } |
| 1151 | |
| 1152 | /* The 8233 ac97 controller does not implement the master bit |
| 1153 | * in the pci command register. IMHO this is a violation of the PCI spec. |
| 1154 | * We call pci_set_master here because it does not hurt. */ |
| 1155 | pci_set_master(pci); |
| 1156 | |
| 1157 | snd_card_set_dev(card, &pci->dev); |
| 1158 | |
| 1159 | *r_via = chip; |
| 1160 | return 0; |
| 1161 | } |
| 1162 | |
| 1163 | |
| 1164 | static int __devinit snd_via82xx_probe(struct pci_dev *pci, |
| 1165 | const struct pci_device_id *pci_id) |
| 1166 | { |
Takashi Iwai | e437e3d | 2005-11-17 15:06:15 +0100 | [diff] [blame] | 1167 | struct snd_card *card; |
| 1168 | struct via82xx_modem *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | int chip_type = 0, card_type; |
| 1170 | unsigned int i; |
| 1171 | int err; |
| 1172 | |
Takashi Iwai | e58de7b | 2008-12-28 16:44:30 +0100 | [diff] [blame] | 1173 | err = snd_card_create(index, id, THIS_MODULE, 0, &card); |
| 1174 | if (err < 0) |
| 1175 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | |
| 1177 | card_type = pci_id->driver_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | switch (card_type) { |
| 1179 | case TYPE_CARD_VIA82XX_MODEM: |
| 1180 | strcpy(card->driver, "VIA82XX-MODEM"); |
| 1181 | sprintf(card->shortname, "VIA 82XX modem"); |
| 1182 | break; |
| 1183 | default: |
| 1184 | snd_printk(KERN_ERR "invalid card type %d\n", card_type); |
| 1185 | err = -EINVAL; |
| 1186 | goto __error; |
| 1187 | } |
| 1188 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 1189 | if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision, |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 1190 | ac97_clock, &chip)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1191 | goto __error; |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1192 | card->private_data = chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1193 | if ((err = snd_via82xx_mixer_new(chip)) < 0) |
| 1194 | goto __error; |
| 1195 | |
| 1196 | if ((err = snd_via686_pcm_new(chip)) < 0 ) |
| 1197 | goto __error; |
| 1198 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1199 | /* disable interrupts */ |
| 1200 | for (i = 0; i < chip->num_devs; i++) |
| 1201 | snd_via82xx_channel_reset(chip, &chip->devs[i]); |
| 1202 | |
| 1203 | sprintf(card->longname, "%s at 0x%lx, irq %d", |
| 1204 | card->shortname, chip->port, chip->irq); |
| 1205 | |
| 1206 | snd_via82xx_proc_init(chip); |
| 1207 | |
| 1208 | if ((err = snd_card_register(card)) < 0) { |
| 1209 | snd_card_free(card); |
| 1210 | return err; |
| 1211 | } |
| 1212 | pci_set_drvdata(pci, card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | return 0; |
| 1214 | |
| 1215 | __error: |
| 1216 | snd_card_free(card); |
| 1217 | return err; |
| 1218 | } |
| 1219 | |
| 1220 | static void __devexit snd_via82xx_remove(struct pci_dev *pci) |
| 1221 | { |
| 1222 | snd_card_free(pci_get_drvdata(pci)); |
| 1223 | pci_set_drvdata(pci, NULL); |
| 1224 | } |
| 1225 | |
| 1226 | static struct pci_driver driver = { |
Takashi Iwai | 3733e42 | 2011-06-10 16:20:20 +0200 | [diff] [blame] | 1227 | .name = KBUILD_MODNAME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | .id_table = snd_via82xx_modem_ids, |
| 1229 | .probe = snd_via82xx_probe, |
| 1230 | .remove = __devexit_p(snd_via82xx_remove), |
Takashi Iwai | 57feb83 | 2005-11-17 16:10:35 +0100 | [diff] [blame] | 1231 | #ifdef CONFIG_PM |
| 1232 | .suspend = snd_via82xx_suspend, |
| 1233 | .resume = snd_via82xx_resume, |
| 1234 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | }; |
| 1236 | |
| 1237 | static int __init alsa_card_via82xx_init(void) |
| 1238 | { |
Takashi Iwai | 01d25d4 | 2005-04-11 16:58:24 +0200 | [diff] [blame] | 1239 | return pci_register_driver(&driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1240 | } |
| 1241 | |
| 1242 | static void __exit alsa_card_via82xx_exit(void) |
| 1243 | { |
| 1244 | pci_unregister_driver(&driver); |
| 1245 | } |
| 1246 | |
| 1247 | module_init(alsa_card_via82xx_init) |
| 1248 | module_exit(alsa_card_via82xx_exit) |