Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ALSA driver for ATI IXP 150/200/250 AC97 modem controllers |
| 3 | * |
| 4 | * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <sound/driver.h> |
| 23 | #include <asm/io.h> |
| 24 | #include <linux/delay.h> |
| 25 | #include <linux/interrupt.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/pci.h> |
| 28 | #include <linux/slab.h> |
| 29 | #include <linux/moduleparam.h> |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 30 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <sound/core.h> |
| 32 | #include <sound/pcm.h> |
| 33 | #include <sound/pcm_params.h> |
| 34 | #include <sound/info.h> |
| 35 | #include <sound/ac97_codec.h> |
| 36 | #include <sound/initval.h> |
| 37 | |
| 38 | MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); |
| 39 | MODULE_DESCRIPTION("ATI IXP MC97 controller"); |
| 40 | MODULE_LICENSE("GPL"); |
| 41 | MODULE_SUPPORTED_DEVICE("{{ATI,IXP150/200/250}}"); |
| 42 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 43 | static int index = -2; /* Exclude the first card */ |
| 44 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ |
| 45 | static int ac97_clock = 48000; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 47 | module_param(index, int, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | MODULE_PARM_DESC(index, "Index value for ATI IXP controller."); |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 49 | module_param(id, charp, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | MODULE_PARM_DESC(id, "ID string for ATI IXP controller."); |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 51 | module_param(ac97_clock, int, 0444); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz)."); |
| 53 | |
Takashi Iwai | 2b3e584 | 2005-10-06 13:47:23 +0200 | [diff] [blame] | 54 | /* just for backward compatibility */ |
| 55 | static int enable; |
Takashi Iwai | 698444f | 2005-10-20 16:53:49 +0200 | [diff] [blame] | 56 | module_param(enable, bool, 0444); |
Takashi Iwai | 2b3e584 | 2005-10-06 13:47:23 +0200 | [diff] [blame] | 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | /* |
| 60 | */ |
| 61 | |
| 62 | #define ATI_REG_ISR 0x00 /* interrupt source */ |
| 63 | #define ATI_REG_ISR_MODEM_IN_XRUN (1U<<0) |
| 64 | #define ATI_REG_ISR_MODEM_IN_STATUS (1U<<1) |
| 65 | #define ATI_REG_ISR_MODEM_OUT1_XRUN (1U<<2) |
| 66 | #define ATI_REG_ISR_MODEM_OUT1_STATUS (1U<<3) |
| 67 | #define ATI_REG_ISR_MODEM_OUT2_XRUN (1U<<4) |
| 68 | #define ATI_REG_ISR_MODEM_OUT2_STATUS (1U<<5) |
| 69 | #define ATI_REG_ISR_MODEM_OUT3_XRUN (1U<<6) |
| 70 | #define ATI_REG_ISR_MODEM_OUT3_STATUS (1U<<7) |
| 71 | #define ATI_REG_ISR_PHYS_INTR (1U<<8) |
| 72 | #define ATI_REG_ISR_PHYS_MISMATCH (1U<<9) |
| 73 | #define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10) |
| 74 | #define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11) |
| 75 | #define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12) |
| 76 | #define ATI_REG_ISR_NEW_FRAME (1U<<13) |
| 77 | #define ATI_REG_ISR_MODEM_GPIO_DATA (1U<<14) |
| 78 | |
| 79 | #define ATI_REG_IER 0x04 /* interrupt enable */ |
| 80 | #define ATI_REG_IER_MODEM_IN_XRUN_EN (1U<<0) |
| 81 | #define ATI_REG_IER_MODEM_STATUS_EN (1U<<1) |
| 82 | #define ATI_REG_IER_MODEM_OUT1_XRUN_EN (1U<<2) |
| 83 | #define ATI_REG_IER_MODEM_OUT2_XRUN_EN (1U<<4) |
| 84 | #define ATI_REG_IER_MODEM_OUT3_XRUN_EN (1U<<6) |
| 85 | #define ATI_REG_IER_PHYS_INTR_EN (1U<<8) |
| 86 | #define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9) |
| 87 | #define ATI_REG_IER_CODEC0_INTR_EN (1U<<10) |
| 88 | #define ATI_REG_IER_CODEC1_INTR_EN (1U<<11) |
| 89 | #define ATI_REG_IER_CODEC2_INTR_EN (1U<<12) |
| 90 | #define ATI_REG_IER_NEW_FRAME_EN (1U<<13) /* (RO */ |
| 91 | #define ATI_REG_IER_MODEM_GPIO_DATA_EN (1U<<14) /* (WO) modem is running */ |
| 92 | #define ATI_REG_IER_MODEM_SET_BUS_BUSY (1U<<15) |
| 93 | |
| 94 | #define ATI_REG_CMD 0x08 /* command */ |
| 95 | #define ATI_REG_CMD_POWERDOWN (1U<<0) |
| 96 | #define ATI_REG_CMD_MODEM_RECEIVE_EN (1U<<1) /* modem only */ |
| 97 | #define ATI_REG_CMD_MODEM_SEND1_EN (1U<<2) /* modem only */ |
| 98 | #define ATI_REG_CMD_MODEM_SEND2_EN (1U<<3) /* modem only */ |
| 99 | #define ATI_REG_CMD_MODEM_SEND3_EN (1U<<4) /* modem only */ |
| 100 | #define ATI_REG_CMD_MODEM_STATUS_MEM (1U<<5) /* modem only */ |
| 101 | #define ATI_REG_CMD_MODEM_IN_DMA_EN (1U<<8) /* modem only */ |
| 102 | #define ATI_REG_CMD_MODEM_OUT_DMA1_EN (1U<<9) /* modem only */ |
| 103 | #define ATI_REG_CMD_MODEM_OUT_DMA2_EN (1U<<10) /* modem only */ |
| 104 | #define ATI_REG_CMD_MODEM_OUT_DMA3_EN (1U<<11) /* modem only */ |
| 105 | #define ATI_REG_CMD_AUDIO_PRESENT (1U<<20) |
| 106 | #define ATI_REG_CMD_MODEM_GPIO_THRU_DMA (1U<<22) /* modem only */ |
| 107 | #define ATI_REG_CMD_LOOPBACK_EN (1U<<23) |
| 108 | #define ATI_REG_CMD_PACKED_DIS (1U<<24) |
| 109 | #define ATI_REG_CMD_BURST_EN (1U<<25) |
| 110 | #define ATI_REG_CMD_PANIC_EN (1U<<26) |
| 111 | #define ATI_REG_CMD_MODEM_PRESENT (1U<<27) |
| 112 | #define ATI_REG_CMD_ACLINK_ACTIVE (1U<<28) |
| 113 | #define ATI_REG_CMD_AC_SOFT_RESET (1U<<29) |
| 114 | #define ATI_REG_CMD_AC_SYNC (1U<<30) |
| 115 | #define ATI_REG_CMD_AC_RESET (1U<<31) |
| 116 | |
| 117 | #define ATI_REG_PHYS_OUT_ADDR 0x0c |
| 118 | #define ATI_REG_PHYS_OUT_CODEC_MASK (3U<<0) |
| 119 | #define ATI_REG_PHYS_OUT_RW (1U<<2) |
| 120 | #define ATI_REG_PHYS_OUT_ADDR_EN (1U<<8) |
| 121 | #define ATI_REG_PHYS_OUT_ADDR_SHIFT 9 |
| 122 | #define ATI_REG_PHYS_OUT_DATA_SHIFT 16 |
| 123 | |
| 124 | #define ATI_REG_PHYS_IN_ADDR 0x10 |
| 125 | #define ATI_REG_PHYS_IN_READ_FLAG (1U<<8) |
| 126 | #define ATI_REG_PHYS_IN_ADDR_SHIFT 9 |
| 127 | #define ATI_REG_PHYS_IN_DATA_SHIFT 16 |
| 128 | |
| 129 | #define ATI_REG_SLOTREQ 0x14 |
| 130 | |
| 131 | #define ATI_REG_COUNTER 0x18 |
| 132 | #define ATI_REG_COUNTER_SLOT (3U<<0) /* slot # */ |
| 133 | #define ATI_REG_COUNTER_BITCLOCK (31U<<8) |
| 134 | |
| 135 | #define ATI_REG_IN_FIFO_THRESHOLD 0x1c |
| 136 | |
| 137 | #define ATI_REG_MODEM_IN_DMA_LINKPTR 0x20 |
| 138 | #define ATI_REG_MODEM_IN_DMA_DT_START 0x24 /* RO */ |
| 139 | #define ATI_REG_MODEM_IN_DMA_DT_NEXT 0x28 /* RO */ |
| 140 | #define ATI_REG_MODEM_IN_DMA_DT_CUR 0x2c /* RO */ |
| 141 | #define ATI_REG_MODEM_IN_DMA_DT_SIZE 0x30 |
| 142 | #define ATI_REG_MODEM_OUT_FIFO 0x34 /* output threshold */ |
| 143 | #define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK (0xf<<16) |
| 144 | #define ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT 16 |
| 145 | #define ATI_REG_MODEM_OUT_DMA1_LINKPTR 0x38 |
| 146 | #define ATI_REG_MODEM_OUT_DMA2_LINKPTR 0x3c |
| 147 | #define ATI_REG_MODEM_OUT_DMA3_LINKPTR 0x40 |
| 148 | #define ATI_REG_MODEM_OUT_DMA1_DT_START 0x44 |
| 149 | #define ATI_REG_MODEM_OUT_DMA1_DT_NEXT 0x48 |
| 150 | #define ATI_REG_MODEM_OUT_DMA1_DT_CUR 0x4c |
| 151 | #define ATI_REG_MODEM_OUT_DMA2_DT_START 0x50 |
| 152 | #define ATI_REG_MODEM_OUT_DMA2_DT_NEXT 0x54 |
| 153 | #define ATI_REG_MODEM_OUT_DMA2_DT_CUR 0x58 |
| 154 | #define ATI_REG_MODEM_OUT_DMA3_DT_START 0x5c |
| 155 | #define ATI_REG_MODEM_OUT_DMA3_DT_NEXT 0x60 |
| 156 | #define ATI_REG_MODEM_OUT_DMA3_DT_CUR 0x64 |
| 157 | #define ATI_REG_MODEM_OUT_DMA12_DT_SIZE 0x68 |
| 158 | #define ATI_REG_MODEM_OUT_DMA3_DT_SIZE 0x6c |
| 159 | #define ATI_REG_MODEM_OUT_FIFO_USED 0x70 |
| 160 | #define ATI_REG_MODEM_OUT_GPIO 0x74 |
| 161 | #define ATI_REG_MODEM_OUT_GPIO_EN 1 |
| 162 | #define ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT 5 |
| 163 | #define ATI_REG_MODEM_IN_GPIO 0x78 |
| 164 | |
| 165 | #define ATI_REG_MODEM_MIRROR 0x7c |
| 166 | #define ATI_REG_AUDIO_MIRROR 0x80 |
| 167 | |
| 168 | #define ATI_REG_MODEM_FIFO_FLUSH 0x88 |
| 169 | #define ATI_REG_MODEM_FIFO_OUT1_FLUSH (1U<<0) |
| 170 | #define ATI_REG_MODEM_FIFO_OUT2_FLUSH (1U<<1) |
| 171 | #define ATI_REG_MODEM_FIFO_OUT3_FLUSH (1U<<2) |
| 172 | #define ATI_REG_MODEM_FIFO_IN_FLUSH (1U<<3) |
| 173 | |
| 174 | /* LINKPTR */ |
| 175 | #define ATI_REG_LINKPTR_EN (1U<<0) |
| 176 | |
| 177 | #define ATI_MAX_DESCRIPTORS 256 /* max number of descriptor packets */ |
| 178 | |
| 179 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 180 | struct atiixp_modem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | |
| 182 | /* |
| 183 | * DMA packate descriptor |
| 184 | */ |
| 185 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 186 | struct atiixp_dma_desc { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | u32 addr; /* DMA buffer address */ |
| 188 | u16 status; /* status bits */ |
| 189 | u16 size; /* size of the packet in dwords */ |
| 190 | u32 next; /* address of the next packet descriptor */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 191 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
| 193 | /* |
| 194 | * stream enum |
| 195 | */ |
| 196 | enum { ATI_DMA_PLAYBACK, ATI_DMA_CAPTURE, NUM_ATI_DMAS }; /* DMAs */ |
| 197 | enum { ATI_PCM_OUT, ATI_PCM_IN, NUM_ATI_PCMS }; /* AC97 pcm slots */ |
| 198 | enum { ATI_PCMDEV_ANALOG, NUM_ATI_PCMDEVS }; /* pcm devices */ |
| 199 | |
| 200 | #define NUM_ATI_CODECS 3 |
| 201 | |
| 202 | |
| 203 | /* |
| 204 | * constants and callbacks for each DMA type |
| 205 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 206 | struct atiixp_dma_ops { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | int type; /* ATI_DMA_XXX */ |
| 208 | unsigned int llp_offset; /* LINKPTR offset */ |
| 209 | unsigned int dt_cur; /* DT_CUR offset */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 210 | /* called from open callback */ |
| 211 | void (*enable_dma)(struct atiixp_modem *chip, int on); |
| 212 | /* called from trigger (START/STOP) */ |
| 213 | void (*enable_transfer)(struct atiixp_modem *chip, int on); |
| 214 | /* called from trigger (STOP only) */ |
| 215 | void (*flush_dma)(struct atiixp_modem *chip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | }; |
| 217 | |
| 218 | /* |
| 219 | * DMA stream |
| 220 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 221 | struct atiixp_dma { |
| 222 | const struct atiixp_dma_ops *ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | struct snd_dma_buffer desc_buf; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 224 | struct snd_pcm_substream *substream; /* assigned PCM substream */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | unsigned int buf_addr, buf_bytes; /* DMA buffer address, bytes */ |
| 226 | unsigned int period_bytes, periods; |
| 227 | int opened; |
| 228 | int running; |
| 229 | int pcm_open_flag; |
| 230 | int ac97_pcm_type; /* index # of ac97_pcm to access, -1 = not used */ |
| 231 | }; |
| 232 | |
| 233 | /* |
| 234 | * ATI IXP chip |
| 235 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 236 | struct atiixp_modem { |
| 237 | struct snd_card *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | struct pci_dev *pci; |
| 239 | |
| 240 | struct resource *res; /* memory i/o */ |
| 241 | unsigned long addr; |
| 242 | void __iomem *remap_addr; |
| 243 | int irq; |
| 244 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 245 | struct snd_ac97_bus *ac97_bus; |
| 246 | struct snd_ac97 *ac97[NUM_ATI_CODECS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
| 248 | spinlock_t reg_lock; |
| 249 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 250 | struct atiixp_dma dmas[NUM_ATI_DMAS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | struct ac97_pcm *pcms[NUM_ATI_PCMS]; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 252 | struct snd_pcm *pcmdevs[NUM_ATI_PCMDEVS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
| 254 | int max_channels; /* max. channels for PCM out */ |
| 255 | |
| 256 | unsigned int codec_not_ready_bits; /* for codec detection */ |
| 257 | |
| 258 | int spdif_over_aclink; /* passed from the module option */ |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 259 | struct mutex open_mutex; /* playback open mutex */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | }; |
| 261 | |
| 262 | |
| 263 | /* |
| 264 | */ |
| 265 | static struct pci_device_id snd_atiixp_ids[] = { |
| 266 | { 0x1002, 0x434d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB200 */ |
Harald Welte | 548e782 | 2005-06-27 15:10:56 +0200 | [diff] [blame] | 267 | { 0x1002, 0x4378, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB400 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | { 0, } |
| 269 | }; |
| 270 | |
| 271 | MODULE_DEVICE_TABLE(pci, snd_atiixp_ids); |
| 272 | |
| 273 | |
| 274 | /* |
| 275 | * lowlevel functions |
| 276 | */ |
| 277 | |
| 278 | /* |
| 279 | * update the bits of the given register. |
| 280 | * return 1 if the bits changed. |
| 281 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 282 | static int snd_atiixp_update_bits(struct atiixp_modem *chip, unsigned int reg, |
| 283 | unsigned int mask, unsigned int value) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | { |
| 285 | void __iomem *addr = chip->remap_addr + reg; |
| 286 | unsigned int data, old_data; |
| 287 | old_data = data = readl(addr); |
| 288 | data &= ~mask; |
| 289 | data |= value; |
| 290 | if (old_data == data) |
| 291 | return 0; |
| 292 | writel(data, addr); |
| 293 | return 1; |
| 294 | } |
| 295 | |
| 296 | /* |
| 297 | * macros for easy use |
| 298 | */ |
| 299 | #define atiixp_write(chip,reg,value) \ |
| 300 | writel(value, chip->remap_addr + ATI_REG_##reg) |
| 301 | #define atiixp_read(chip,reg) \ |
| 302 | readl(chip->remap_addr + ATI_REG_##reg) |
| 303 | #define atiixp_update(chip,reg,mask,val) \ |
| 304 | snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val) |
| 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | /* |
| 307 | * handling DMA packets |
| 308 | * |
| 309 | * we allocate a linear buffer for the DMA, and split it to each packet. |
| 310 | * in a future version, a scatter-gather buffer should be implemented. |
| 311 | */ |
| 312 | |
| 313 | #define ATI_DESC_LIST_SIZE \ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 314 | PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | |
| 316 | /* |
| 317 | * build packets ring for the given buffer size. |
| 318 | * |
| 319 | * IXP handles the buffer descriptors, which are connected as a linked |
| 320 | * list. although we can change the list dynamically, in this version, |
| 321 | * a static RING of buffer descriptors is used. |
| 322 | * |
| 323 | * the ring is built in this function, and is set up to the hardware. |
| 324 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 325 | static int atiixp_build_dma_packets(struct atiixp_modem *chip, |
| 326 | struct atiixp_dma *dma, |
| 327 | struct snd_pcm_substream *substream, |
| 328 | unsigned int periods, |
| 329 | unsigned int period_bytes) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | { |
| 331 | unsigned int i; |
| 332 | u32 addr, desc_addr; |
| 333 | unsigned long flags; |
| 334 | |
| 335 | if (periods > ATI_MAX_DESCRIPTORS) |
| 336 | return -ENOMEM; |
| 337 | |
| 338 | if (dma->desc_buf.area == NULL) { |
| 339 | if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci), |
| 340 | ATI_DESC_LIST_SIZE, &dma->desc_buf) < 0) |
| 341 | return -ENOMEM; |
| 342 | dma->period_bytes = dma->periods = 0; /* clear */ |
| 343 | } |
| 344 | |
| 345 | if (dma->periods == periods && dma->period_bytes == period_bytes) |
| 346 | return 0; |
| 347 | |
| 348 | /* reset DMA before changing the descriptor table */ |
| 349 | spin_lock_irqsave(&chip->reg_lock, flags); |
| 350 | writel(0, chip->remap_addr + dma->ops->llp_offset); |
| 351 | dma->ops->enable_dma(chip, 0); |
| 352 | dma->ops->enable_dma(chip, 1); |
| 353 | spin_unlock_irqrestore(&chip->reg_lock, flags); |
| 354 | |
| 355 | /* fill the entries */ |
| 356 | addr = (u32)substream->runtime->dma_addr; |
| 357 | desc_addr = (u32)dma->desc_buf.addr; |
| 358 | for (i = 0; i < periods; i++) { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 359 | struct atiixp_dma_desc *desc; |
| 360 | desc = &((struct atiixp_dma_desc *)dma->desc_buf.area)[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | desc->addr = cpu_to_le32(addr); |
| 362 | desc->status = 0; |
| 363 | desc->size = period_bytes >> 2; /* in dwords */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 364 | desc_addr += sizeof(struct atiixp_dma_desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | if (i == periods - 1) |
| 366 | desc->next = cpu_to_le32((u32)dma->desc_buf.addr); |
| 367 | else |
| 368 | desc->next = cpu_to_le32(desc_addr); |
| 369 | addr += period_bytes; |
| 370 | } |
| 371 | |
| 372 | writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN, |
| 373 | chip->remap_addr + dma->ops->llp_offset); |
| 374 | |
| 375 | dma->period_bytes = period_bytes; |
| 376 | dma->periods = periods; |
| 377 | |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | /* |
| 382 | * remove the ring buffer and release it if assigned |
| 383 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 384 | static void atiixp_clear_dma_packets(struct atiixp_modem *chip, |
| 385 | struct atiixp_dma *dma, |
| 386 | struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | { |
| 388 | if (dma->desc_buf.area) { |
| 389 | writel(0, chip->remap_addr + dma->ops->llp_offset); |
| 390 | snd_dma_free_pages(&dma->desc_buf); |
| 391 | dma->desc_buf.area = NULL; |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | /* |
| 396 | * AC97 interface |
| 397 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 398 | static int snd_atiixp_acquire_codec(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | { |
| 400 | int timeout = 1000; |
| 401 | |
| 402 | while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) { |
| 403 | if (! timeout--) { |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 404 | snd_printk(KERN_WARNING "atiixp-modem: codec acquire timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | return -EBUSY; |
| 406 | } |
| 407 | udelay(1); |
| 408 | } |
| 409 | return 0; |
| 410 | } |
| 411 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 412 | static unsigned short snd_atiixp_codec_read(struct atiixp_modem *chip, |
| 413 | unsigned short codec, |
| 414 | unsigned short reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | { |
| 416 | unsigned int data; |
| 417 | int timeout; |
| 418 | |
| 419 | if (snd_atiixp_acquire_codec(chip) < 0) |
| 420 | return 0xffff; |
| 421 | data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) | |
| 422 | ATI_REG_PHYS_OUT_ADDR_EN | |
| 423 | ATI_REG_PHYS_OUT_RW | |
| 424 | codec; |
| 425 | atiixp_write(chip, PHYS_OUT_ADDR, data); |
| 426 | if (snd_atiixp_acquire_codec(chip) < 0) |
| 427 | return 0xffff; |
| 428 | timeout = 1000; |
| 429 | do { |
| 430 | data = atiixp_read(chip, PHYS_IN_ADDR); |
| 431 | if (data & ATI_REG_PHYS_IN_READ_FLAG) |
| 432 | return data >> ATI_REG_PHYS_IN_DATA_SHIFT; |
| 433 | udelay(1); |
| 434 | } while (--timeout); |
| 435 | /* time out may happen during reset */ |
| 436 | if (reg < 0x7c) |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 437 | snd_printk(KERN_WARNING "atiixp-modem: codec read timeout (reg %x)\n", reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | return 0xffff; |
| 439 | } |
| 440 | |
| 441 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 442 | static void snd_atiixp_codec_write(struct atiixp_modem *chip, |
| 443 | unsigned short codec, |
| 444 | unsigned short reg, unsigned short val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | { |
| 446 | unsigned int data; |
| 447 | |
| 448 | if (snd_atiixp_acquire_codec(chip) < 0) |
| 449 | return; |
| 450 | data = ((unsigned int)val << ATI_REG_PHYS_OUT_DATA_SHIFT) | |
| 451 | ((unsigned int)reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) | |
| 452 | ATI_REG_PHYS_OUT_ADDR_EN | codec; |
| 453 | atiixp_write(chip, PHYS_OUT_ADDR, data); |
| 454 | } |
| 455 | |
| 456 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 457 | static unsigned short snd_atiixp_ac97_read(struct snd_ac97 *ac97, |
| 458 | unsigned short reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 460 | struct atiixp_modem *chip = ac97->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | return snd_atiixp_codec_read(chip, ac97->num, reg); |
| 462 | |
| 463 | } |
| 464 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 465 | static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg, |
| 466 | unsigned short val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 467 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 468 | struct atiixp_modem *chip = ac97->private_data; |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 469 | if (reg == AC97_GPIO_STATUS) { |
| 470 | atiixp_write(chip, MODEM_OUT_GPIO, |
| 471 | (val << ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT) | ATI_REG_MODEM_OUT_GPIO_EN); |
| 472 | return; |
| 473 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | snd_atiixp_codec_write(chip, ac97->num, reg, val); |
| 475 | } |
| 476 | |
| 477 | /* |
| 478 | * reset AC link |
| 479 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 480 | static int snd_atiixp_aclink_reset(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | { |
| 482 | int timeout; |
| 483 | |
| 484 | /* reset powerdoewn */ |
| 485 | if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0)) |
| 486 | udelay(10); |
| 487 | |
| 488 | /* perform a software reset */ |
| 489 | atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET); |
| 490 | atiixp_read(chip, CMD); |
| 491 | udelay(10); |
| 492 | atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0); |
| 493 | |
| 494 | timeout = 10; |
| 495 | while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) { |
| 496 | /* do a hard reset */ |
| 497 | atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET, |
| 498 | ATI_REG_CMD_AC_SYNC); |
| 499 | atiixp_read(chip, CMD); |
Takashi Iwai | bfdcbac | 2005-11-17 10:35:53 +0100 | [diff] [blame] | 500 | msleep(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 501 | atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET); |
| 502 | if (--timeout) { |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 503 | snd_printk(KERN_ERR "atiixp-modem: codec reset timeout\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 504 | break; |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | /* deassert RESET and assert SYNC to make sure */ |
| 509 | atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET, |
| 510 | ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET); |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | |
| 515 | #ifdef CONFIG_PM |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 516 | static int snd_atiixp_aclink_down(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | { |
| 518 | // if (atiixp_read(chip, MODEM_MIRROR) & 0x1) /* modem running, too? */ |
| 519 | // return -EBUSY; |
| 520 | atiixp_update(chip, CMD, |
| 521 | ATI_REG_CMD_POWERDOWN | ATI_REG_CMD_AC_RESET, |
| 522 | ATI_REG_CMD_POWERDOWN); |
| 523 | return 0; |
| 524 | } |
| 525 | #endif |
| 526 | |
| 527 | /* |
| 528 | * auto-detection of codecs |
| 529 | * |
| 530 | * the IXP chip can generate interrupts for the non-existing codecs. |
| 531 | * NEW_FRAME interrupt is used to make sure that the interrupt is generated |
| 532 | * even if all three codecs are connected. |
| 533 | */ |
| 534 | |
| 535 | #define ALL_CODEC_NOT_READY \ |
| 536 | (ATI_REG_ISR_CODEC0_NOT_READY |\ |
| 537 | ATI_REG_ISR_CODEC1_NOT_READY |\ |
| 538 | ATI_REG_ISR_CODEC2_NOT_READY) |
| 539 | #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME) |
| 540 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 541 | static int snd_atiixp_codec_detect(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | { |
| 543 | int timeout; |
| 544 | |
| 545 | chip->codec_not_ready_bits = 0; |
| 546 | atiixp_write(chip, IER, CODEC_CHECK_BITS); |
| 547 | /* wait for the interrupts */ |
Takashi Iwai | bfdcbac | 2005-11-17 10:35:53 +0100 | [diff] [blame] | 548 | timeout = 50; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | while (timeout-- > 0) { |
Takashi Iwai | bfdcbac | 2005-11-17 10:35:53 +0100 | [diff] [blame] | 550 | msleep(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | if (chip->codec_not_ready_bits) |
| 552 | break; |
| 553 | } |
| 554 | atiixp_write(chip, IER, 0); /* disable irqs */ |
| 555 | |
| 556 | if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) { |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 557 | snd_printk(KERN_ERR "atiixp-modem: no codec detected!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | return -ENXIO; |
| 559 | } |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | |
| 564 | /* |
| 565 | * enable DMA and irqs |
| 566 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 567 | static int snd_atiixp_chip_start(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | { |
| 569 | unsigned int reg; |
| 570 | |
| 571 | /* set up spdif, enable burst mode */ |
| 572 | reg = atiixp_read(chip, CMD); |
| 573 | reg |= ATI_REG_CMD_BURST_EN; |
| 574 | if(!(reg & ATI_REG_CMD_MODEM_PRESENT)) |
| 575 | reg |= ATI_REG_CMD_MODEM_PRESENT; |
| 576 | atiixp_write(chip, CMD, reg); |
| 577 | |
| 578 | /* clear all interrupt source */ |
| 579 | atiixp_write(chip, ISR, 0xffffffff); |
| 580 | /* enable irqs */ |
| 581 | atiixp_write(chip, IER, |
| 582 | ATI_REG_IER_MODEM_STATUS_EN | |
| 583 | ATI_REG_IER_MODEM_IN_XRUN_EN | |
| 584 | ATI_REG_IER_MODEM_OUT1_XRUN_EN); |
| 585 | return 0; |
| 586 | } |
| 587 | |
| 588 | |
| 589 | /* |
| 590 | * disable DMA and IRQs |
| 591 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 592 | static int snd_atiixp_chip_stop(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | { |
| 594 | /* clear interrupt source */ |
| 595 | atiixp_write(chip, ISR, atiixp_read(chip, ISR)); |
| 596 | /* disable irqs */ |
| 597 | atiixp_write(chip, IER, 0); |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | |
| 602 | /* |
| 603 | * PCM section |
| 604 | */ |
| 605 | |
| 606 | /* |
| 607 | * pointer callback simplly reads XXX_DMA_DT_CUR register as the current |
| 608 | * position. when SG-buffer is implemented, the offset must be calculated |
| 609 | * correctly... |
| 610 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 611 | static snd_pcm_uframes_t snd_atiixp_pcm_pointer(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 613 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
| 614 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 615 | struct atiixp_dma *dma = runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | unsigned int curptr; |
| 617 | int timeout = 1000; |
| 618 | |
| 619 | while (timeout--) { |
| 620 | curptr = readl(chip->remap_addr + dma->ops->dt_cur); |
| 621 | if (curptr < dma->buf_addr) |
| 622 | continue; |
| 623 | curptr -= dma->buf_addr; |
| 624 | if (curptr >= dma->buf_bytes) |
| 625 | continue; |
| 626 | return bytes_to_frames(runtime, curptr); |
| 627 | } |
| 628 | snd_printd("atiixp-modem: invalid DMA pointer read 0x%x (buf=%x)\n", |
| 629 | readl(chip->remap_addr + dma->ops->dt_cur), dma->buf_addr); |
| 630 | return 0; |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * XRUN detected, and stop the PCM substream |
| 635 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 636 | static void snd_atiixp_xrun_dma(struct atiixp_modem *chip, |
| 637 | struct atiixp_dma *dma) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | { |
| 639 | if (! dma->substream || ! dma->running) |
| 640 | return; |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 641 | snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN); |
| 643 | } |
| 644 | |
| 645 | /* |
| 646 | * the period ack. update the substream. |
| 647 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 648 | static void snd_atiixp_update_dma(struct atiixp_modem *chip, |
| 649 | struct atiixp_dma *dma) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 650 | { |
| 651 | if (! dma->substream || ! dma->running) |
| 652 | return; |
| 653 | snd_pcm_period_elapsed(dma->substream); |
| 654 | } |
| 655 | |
| 656 | /* set BUS_BUSY interrupt bit if any DMA is running */ |
| 657 | /* call with spinlock held */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 658 | static void snd_atiixp_check_bus_busy(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | { |
| 660 | unsigned int bus_busy; |
| 661 | if (atiixp_read(chip, CMD) & (ATI_REG_CMD_MODEM_SEND1_EN | |
| 662 | ATI_REG_CMD_MODEM_RECEIVE_EN)) |
| 663 | bus_busy = ATI_REG_IER_MODEM_SET_BUS_BUSY; |
| 664 | else |
| 665 | bus_busy = 0; |
| 666 | atiixp_update(chip, IER, ATI_REG_IER_MODEM_SET_BUS_BUSY, bus_busy); |
| 667 | } |
| 668 | |
| 669 | /* common trigger callback |
| 670 | * calling the lowlevel callbacks in it |
| 671 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 672 | static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 673 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 674 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
| 675 | struct atiixp_dma *dma = substream->runtime->private_data; |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 676 | int err = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | |
| 678 | snd_assert(dma->ops->enable_transfer && dma->ops->flush_dma, return -EINVAL); |
| 679 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | spin_lock(&chip->reg_lock); |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 681 | switch(cmd) { |
| 682 | case SNDRV_PCM_TRIGGER_START: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | dma->ops->enable_transfer(chip, 1); |
| 684 | dma->running = 1; |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 685 | break; |
| 686 | case SNDRV_PCM_TRIGGER_STOP: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | dma->ops->enable_transfer(chip, 0); |
| 688 | dma->running = 0; |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 689 | break; |
| 690 | default: |
| 691 | err = -EINVAL; |
| 692 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 693 | } |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 694 | if (! err) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | snd_atiixp_check_bus_busy(chip); |
| 696 | if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| 697 | dma->ops->flush_dma(chip); |
| 698 | snd_atiixp_check_bus_busy(chip); |
| 699 | } |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 700 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | spin_unlock(&chip->reg_lock); |
Sasha Khapyorsky | 83a5b72 | 2005-05-29 15:10:07 +0200 | [diff] [blame] | 702 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | } |
| 704 | |
| 705 | |
| 706 | /* |
| 707 | * lowlevel callbacks for each DMA type |
| 708 | * |
| 709 | * every callback is supposed to be called in chip->reg_lock spinlock |
| 710 | */ |
| 711 | |
| 712 | /* flush FIFO of analog OUT DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 713 | static void atiixp_out_flush_dma(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
| 715 | atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_OUT1_FLUSH); |
| 716 | } |
| 717 | |
| 718 | /* enable/disable analog OUT DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 719 | static void atiixp_out_enable_dma(struct atiixp_modem *chip, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | { |
| 721 | unsigned int data; |
| 722 | data = atiixp_read(chip, CMD); |
| 723 | if (on) { |
| 724 | if (data & ATI_REG_CMD_MODEM_OUT_DMA1_EN) |
| 725 | return; |
| 726 | atiixp_out_flush_dma(chip); |
| 727 | data |= ATI_REG_CMD_MODEM_OUT_DMA1_EN; |
| 728 | } else |
| 729 | data &= ~ATI_REG_CMD_MODEM_OUT_DMA1_EN; |
| 730 | atiixp_write(chip, CMD, data); |
| 731 | } |
| 732 | |
| 733 | /* start/stop transfer over OUT DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 734 | static void atiixp_out_enable_transfer(struct atiixp_modem *chip, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | { |
| 736 | atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_SEND1_EN, |
| 737 | on ? ATI_REG_CMD_MODEM_SEND1_EN : 0); |
| 738 | } |
| 739 | |
| 740 | /* enable/disable analog IN DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 741 | static void atiixp_in_enable_dma(struct atiixp_modem *chip, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | { |
| 743 | atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_IN_DMA_EN, |
| 744 | on ? ATI_REG_CMD_MODEM_IN_DMA_EN : 0); |
| 745 | } |
| 746 | |
| 747 | /* start/stop analog IN DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 748 | static void atiixp_in_enable_transfer(struct atiixp_modem *chip, int on) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | { |
| 750 | if (on) { |
| 751 | unsigned int data = atiixp_read(chip, CMD); |
| 752 | if (! (data & ATI_REG_CMD_MODEM_RECEIVE_EN)) { |
| 753 | data |= ATI_REG_CMD_MODEM_RECEIVE_EN; |
| 754 | atiixp_write(chip, CMD, data); |
| 755 | } |
| 756 | } else |
| 757 | atiixp_update(chip, CMD, ATI_REG_CMD_MODEM_RECEIVE_EN, 0); |
| 758 | } |
| 759 | |
| 760 | /* flush FIFO of analog IN DMA */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 761 | static void atiixp_in_flush_dma(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | { |
| 763 | atiixp_write(chip, MODEM_FIFO_FLUSH, ATI_REG_MODEM_FIFO_IN_FLUSH); |
| 764 | } |
| 765 | |
| 766 | /* set up slots and formats for analog OUT */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 767 | static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 769 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | unsigned int data; |
| 771 | |
| 772 | spin_lock_irq(&chip->reg_lock); |
| 773 | /* set output threshold */ |
| 774 | data = atiixp_read(chip, MODEM_OUT_FIFO); |
| 775 | data &= ~ATI_REG_MODEM_OUT1_DMA_THRESHOLD_MASK; |
| 776 | data |= 0x04 << ATI_REG_MODEM_OUT1_DMA_THRESHOLD_SHIFT; |
| 777 | atiixp_write(chip, MODEM_OUT_FIFO, data); |
| 778 | spin_unlock_irq(&chip->reg_lock); |
| 779 | return 0; |
| 780 | } |
| 781 | |
| 782 | /* set up slots and formats for analog IN */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 783 | static int snd_atiixp_capture_prepare(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | { |
| 785 | return 0; |
| 786 | } |
| 787 | |
| 788 | /* |
| 789 | * hw_params - allocate the buffer and set up buffer descriptors |
| 790 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 791 | static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream *substream, |
| 792 | struct snd_pcm_hw_params *hw_params) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 794 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
| 795 | struct atiixp_dma *dma = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | int err; |
| 797 | int i; |
| 798 | |
| 799 | err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| 800 | if (err < 0) |
| 801 | return err; |
| 802 | dma->buf_addr = substream->runtime->dma_addr; |
| 803 | dma->buf_bytes = params_buffer_bytes(hw_params); |
| 804 | |
| 805 | err = atiixp_build_dma_packets(chip, dma, substream, |
| 806 | params_periods(hw_params), |
| 807 | params_period_bytes(hw_params)); |
| 808 | if (err < 0) |
| 809 | return err; |
| 810 | |
| 811 | /* set up modem rate */ |
| 812 | for (i = 0; i < NUM_ATI_CODECS; i++) { |
| 813 | if (! chip->ac97[i]) |
| 814 | continue; |
| 815 | snd_ac97_write(chip->ac97[i], AC97_LINE1_RATE, params_rate(hw_params)); |
| 816 | snd_ac97_write(chip->ac97[i], AC97_LINE1_LEVEL, 0); |
| 817 | } |
| 818 | |
| 819 | return err; |
| 820 | } |
| 821 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 822 | static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 823 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 824 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
| 825 | struct atiixp_dma *dma = substream->runtime->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
| 827 | atiixp_clear_dma_packets(chip, dma, substream); |
| 828 | snd_pcm_lib_free_pages(substream); |
| 829 | return 0; |
| 830 | } |
| 831 | |
| 832 | |
| 833 | /* |
| 834 | * pcm hardware definition, identical for all DMA types |
| 835 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 836 | static struct snd_pcm_hardware snd_atiixp_pcm_hw = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 837 | { |
| 838 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| 839 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 840 | SNDRV_PCM_INFO_MMAP_VALID), |
| 841 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 842 | .rates = (SNDRV_PCM_RATE_8000 | |
| 843 | SNDRV_PCM_RATE_16000 | |
| 844 | SNDRV_PCM_RATE_KNOT), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | .rate_min = 8000, |
| 846 | .rate_max = 16000, |
| 847 | .channels_min = 2, |
| 848 | .channels_max = 2, |
| 849 | .buffer_bytes_max = 256 * 1024, |
| 850 | .period_bytes_min = 32, |
| 851 | .period_bytes_max = 128 * 1024, |
| 852 | .periods_min = 2, |
| 853 | .periods_max = ATI_MAX_DESCRIPTORS, |
| 854 | }; |
| 855 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 856 | static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream, |
| 857 | struct atiixp_dma *dma, int pcm_type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 859 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
| 860 | struct snd_pcm_runtime *runtime = substream->runtime; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | int err; |
| 862 | static unsigned int rates[] = { 8000, 9600, 12000, 16000 }; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 863 | static struct snd_pcm_hw_constraint_list hw_constraints_rates = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | .count = ARRAY_SIZE(rates), |
| 865 | .list = rates, |
| 866 | .mask = 0, |
| 867 | }; |
| 868 | |
| 869 | snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL); |
| 870 | |
| 871 | if (dma->opened) |
| 872 | return -EBUSY; |
| 873 | dma->substream = substream; |
| 874 | runtime->hw = snd_atiixp_pcm_hw; |
| 875 | dma->ac97_pcm_type = pcm_type; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 876 | if ((err = snd_pcm_hw_constraint_list(runtime, 0, |
| 877 | SNDRV_PCM_HW_PARAM_RATE, |
| 878 | &hw_constraints_rates)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | return err; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 880 | if ((err = snd_pcm_hw_constraint_integer(runtime, |
| 881 | SNDRV_PCM_HW_PARAM_PERIODS)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | return err; |
| 883 | runtime->private_data = dma; |
| 884 | |
| 885 | /* enable DMA bits */ |
| 886 | spin_lock_irq(&chip->reg_lock); |
| 887 | dma->ops->enable_dma(chip, 1); |
| 888 | spin_unlock_irq(&chip->reg_lock); |
| 889 | dma->opened = 1; |
| 890 | |
| 891 | return 0; |
| 892 | } |
| 893 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 894 | static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream, |
| 895 | struct atiixp_dma *dma) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 897 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 898 | /* disable DMA bits */ |
| 899 | snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL); |
| 900 | spin_lock_irq(&chip->reg_lock); |
| 901 | dma->ops->enable_dma(chip, 0); |
| 902 | spin_unlock_irq(&chip->reg_lock); |
| 903 | dma->substream = NULL; |
| 904 | dma->opened = 0; |
| 905 | return 0; |
| 906 | } |
| 907 | |
| 908 | /* |
| 909 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 910 | static int snd_atiixp_playback_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 911 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 912 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 913 | int err; |
| 914 | |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 915 | mutex_lock(&chip->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0); |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 917 | mutex_unlock(&chip->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 918 | if (err < 0) |
| 919 | return err; |
| 920 | return 0; |
| 921 | } |
| 922 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 923 | static int snd_atiixp_playback_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 925 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | int err; |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 927 | mutex_lock(&chip->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]); |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 929 | mutex_unlock(&chip->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | return err; |
| 931 | } |
| 932 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 933 | static int snd_atiixp_capture_open(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 934 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 935 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1); |
| 937 | } |
| 938 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 939 | static int snd_atiixp_capture_close(struct snd_pcm_substream *substream) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 941 | struct atiixp_modem *chip = snd_pcm_substream_chip(substream); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 942 | return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]); |
| 943 | } |
| 944 | |
| 945 | |
| 946 | /* AC97 playback */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 947 | static struct snd_pcm_ops snd_atiixp_playback_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | .open = snd_atiixp_playback_open, |
| 949 | .close = snd_atiixp_playback_close, |
| 950 | .ioctl = snd_pcm_lib_ioctl, |
| 951 | .hw_params = snd_atiixp_pcm_hw_params, |
| 952 | .hw_free = snd_atiixp_pcm_hw_free, |
| 953 | .prepare = snd_atiixp_playback_prepare, |
| 954 | .trigger = snd_atiixp_pcm_trigger, |
| 955 | .pointer = snd_atiixp_pcm_pointer, |
| 956 | }; |
| 957 | |
| 958 | /* AC97 capture */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 959 | static struct snd_pcm_ops snd_atiixp_capture_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | .open = snd_atiixp_capture_open, |
| 961 | .close = snd_atiixp_capture_close, |
| 962 | .ioctl = snd_pcm_lib_ioctl, |
| 963 | .hw_params = snd_atiixp_pcm_hw_params, |
| 964 | .hw_free = snd_atiixp_pcm_hw_free, |
| 965 | .prepare = snd_atiixp_capture_prepare, |
| 966 | .trigger = snd_atiixp_pcm_trigger, |
| 967 | .pointer = snd_atiixp_pcm_pointer, |
| 968 | }; |
| 969 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 970 | static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 971 | .type = ATI_DMA_PLAYBACK, |
| 972 | .llp_offset = ATI_REG_MODEM_OUT_DMA1_LINKPTR, |
| 973 | .dt_cur = ATI_REG_MODEM_OUT_DMA1_DT_CUR, |
| 974 | .enable_dma = atiixp_out_enable_dma, |
| 975 | .enable_transfer = atiixp_out_enable_transfer, |
| 976 | .flush_dma = atiixp_out_flush_dma, |
| 977 | }; |
| 978 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 979 | static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | .type = ATI_DMA_CAPTURE, |
| 981 | .llp_offset = ATI_REG_MODEM_IN_DMA_LINKPTR, |
| 982 | .dt_cur = ATI_REG_MODEM_IN_DMA_DT_CUR, |
| 983 | .enable_dma = atiixp_in_enable_dma, |
| 984 | .enable_transfer = atiixp_in_enable_transfer, |
| 985 | .flush_dma = atiixp_in_flush_dma, |
| 986 | }; |
| 987 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 988 | static int __devinit snd_atiixp_pcm_new(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 989 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 990 | struct snd_pcm *pcm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | int err; |
| 992 | |
| 993 | /* initialize constants */ |
| 994 | chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops; |
| 995 | chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops; |
| 996 | |
| 997 | /* PCM #0: analog I/O */ |
| 998 | err = snd_pcm_new(chip->card, "ATI IXP MC97", ATI_PCMDEV_ANALOG, 1, 1, &pcm); |
| 999 | if (err < 0) |
| 1000 | return err; |
| 1001 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops); |
| 1002 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops); |
Sasha Khapyorsky | 6632d19 | 2005-09-29 11:48:17 +0200 | [diff] [blame] | 1003 | pcm->dev_class = SNDRV_PCM_CLASS_MODEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | pcm->private_data = chip; |
| 1005 | strcpy(pcm->name, "ATI IXP MC97"); |
| 1006 | chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm; |
| 1007 | |
| 1008 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1009 | snd_dma_pci_data(chip->pci), |
| 1010 | 64*1024, 128*1024); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1011 | |
| 1012 | return 0; |
| 1013 | } |
| 1014 | |
| 1015 | |
| 1016 | |
| 1017 | /* |
| 1018 | * interrupt handler |
| 1019 | */ |
| 1020 | static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 1021 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1022 | struct atiixp_modem *chip = dev_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | unsigned int status; |
| 1024 | |
| 1025 | status = atiixp_read(chip, ISR); |
| 1026 | |
| 1027 | if (! status) |
| 1028 | return IRQ_NONE; |
| 1029 | |
| 1030 | /* process audio DMA */ |
| 1031 | if (status & ATI_REG_ISR_MODEM_OUT1_XRUN) |
| 1032 | snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]); |
| 1033 | else if (status & ATI_REG_ISR_MODEM_OUT1_STATUS) |
| 1034 | snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]); |
| 1035 | if (status & ATI_REG_ISR_MODEM_IN_XRUN) |
| 1036 | snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]); |
| 1037 | else if (status & ATI_REG_ISR_MODEM_IN_STATUS) |
| 1038 | snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]); |
| 1039 | |
| 1040 | /* for codec detection */ |
| 1041 | if (status & CODEC_CHECK_BITS) { |
| 1042 | unsigned int detected; |
| 1043 | detected = status & CODEC_CHECK_BITS; |
| 1044 | spin_lock(&chip->reg_lock); |
| 1045 | chip->codec_not_ready_bits |= detected; |
| 1046 | atiixp_update(chip, IER, detected, 0); /* disable the detected irqs */ |
| 1047 | spin_unlock(&chip->reg_lock); |
| 1048 | } |
| 1049 | |
| 1050 | /* ack */ |
| 1051 | atiixp_write(chip, ISR, status); |
| 1052 | |
| 1053 | return IRQ_HANDLED; |
| 1054 | } |
| 1055 | |
| 1056 | |
| 1057 | /* |
| 1058 | * ac97 mixer section |
| 1059 | */ |
| 1060 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1061 | static int __devinit snd_atiixp_mixer_new(struct atiixp_modem *chip, int clock) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1063 | struct snd_ac97_bus *pbus; |
| 1064 | struct snd_ac97_template ac97; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | int i, err; |
| 1066 | int codec_count; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1067 | static struct snd_ac97_bus_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | .write = snd_atiixp_ac97_write, |
| 1069 | .read = snd_atiixp_ac97_read, |
| 1070 | }; |
| 1071 | static unsigned int codec_skip[NUM_ATI_CODECS] = { |
| 1072 | ATI_REG_ISR_CODEC0_NOT_READY, |
| 1073 | ATI_REG_ISR_CODEC1_NOT_READY, |
| 1074 | ATI_REG_ISR_CODEC2_NOT_READY, |
| 1075 | }; |
| 1076 | |
| 1077 | if (snd_atiixp_codec_detect(chip) < 0) |
| 1078 | return -ENXIO; |
| 1079 | |
| 1080 | if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0) |
| 1081 | return err; |
| 1082 | pbus->clock = clock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | chip->ac97_bus = pbus; |
| 1084 | |
| 1085 | codec_count = 0; |
| 1086 | for (i = 0; i < NUM_ATI_CODECS; i++) { |
| 1087 | if (chip->codec_not_ready_bits & codec_skip[i]) |
| 1088 | continue; |
| 1089 | memset(&ac97, 0, sizeof(ac97)); |
| 1090 | ac97.private_data = chip; |
| 1091 | ac97.pci = chip->pci; |
| 1092 | ac97.num = i; |
| 1093 | ac97.scaps = AC97_SCAP_SKIP_AUDIO; |
| 1094 | if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) { |
| 1095 | chip->ac97[i] = NULL; /* to be sure */ |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 1096 | snd_printdd("atiixp-modem: codec %d not available for modem\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | continue; |
| 1098 | } |
| 1099 | codec_count++; |
| 1100 | } |
| 1101 | |
| 1102 | if (! codec_count) { |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 1103 | snd_printk(KERN_ERR "atiixp-modem: no codec available\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | return -ENODEV; |
| 1105 | } |
| 1106 | |
| 1107 | /* snd_ac97_tune_hardware(chip->ac97, ac97_quirks); */ |
| 1108 | |
| 1109 | return 0; |
| 1110 | } |
| 1111 | |
| 1112 | |
| 1113 | #ifdef CONFIG_PM |
| 1114 | /* |
| 1115 | * power management |
| 1116 | */ |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1117 | static int snd_atiixp_suspend(struct pci_dev *pci, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | { |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1119 | struct snd_card *card = pci_get_drvdata(pci); |
| 1120 | struct atiixp_modem *chip = card->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | int i; |
| 1122 | |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1123 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | for (i = 0; i < NUM_ATI_PCMDEVS; i++) |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1125 | snd_pcm_suspend_all(chip->pcmdevs[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1126 | for (i = 0; i < NUM_ATI_CODECS; i++) |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1127 | snd_ac97_suspend(chip->ac97[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | snd_atiixp_aclink_down(chip); |
| 1129 | snd_atiixp_chip_stop(chip); |
| 1130 | |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1131 | pci_set_power_state(pci, PCI_D3hot); |
| 1132 | pci_disable_device(pci); |
| 1133 | pci_save_state(pci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1134 | return 0; |
| 1135 | } |
| 1136 | |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1137 | static int snd_atiixp_resume(struct pci_dev *pci) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | { |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1139 | struct snd_card *card = pci_get_drvdata(pci); |
| 1140 | struct atiixp_modem *chip = card->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | int i; |
| 1142 | |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1143 | pci_restore_state(pci); |
| 1144 | pci_enable_device(pci); |
| 1145 | pci_set_power_state(pci, PCI_D0); |
| 1146 | pci_set_master(pci); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | |
| 1148 | snd_atiixp_aclink_reset(chip); |
| 1149 | snd_atiixp_chip_start(chip); |
| 1150 | |
| 1151 | for (i = 0; i < NUM_ATI_CODECS; i++) |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1152 | snd_ac97_resume(chip->ac97[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1154 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | return 0; |
| 1156 | } |
| 1157 | #endif /* CONFIG_PM */ |
| 1158 | |
| 1159 | |
Takashi Iwai | adf1b3d | 2005-12-01 10:49:58 +0100 | [diff] [blame] | 1160 | #ifdef CONFIG_PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | /* |
| 1162 | * proc interface for register dump |
| 1163 | */ |
| 1164 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1165 | static void snd_atiixp_proc_read(struct snd_info_entry *entry, |
| 1166 | struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1168 | struct atiixp_modem *chip = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | int i; |
| 1170 | |
| 1171 | for (i = 0; i < 256; i += 4) |
| 1172 | snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i)); |
| 1173 | } |
| 1174 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1175 | static void __devinit snd_atiixp_proc_init(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1177 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1178 | |
Chuck Ebbert | 98b4f59 | 2005-09-22 21:44:08 -0700 | [diff] [blame] | 1179 | if (! snd_card_proc_new(chip->card, "atiixp-modem", &entry)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | snd_info_set_text_ops(entry, chip, 1024, snd_atiixp_proc_read); |
| 1181 | } |
Takashi Iwai | adf1b3d | 2005-12-01 10:49:58 +0100 | [diff] [blame] | 1182 | #else |
| 1183 | #define snd_atiixp_proc_init(chip) |
| 1184 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1185 | |
| 1186 | |
| 1187 | /* |
| 1188 | * destructor |
| 1189 | */ |
| 1190 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1191 | static int snd_atiixp_free(struct atiixp_modem *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1192 | { |
| 1193 | if (chip->irq < 0) |
| 1194 | goto __hw_end; |
| 1195 | snd_atiixp_chip_stop(chip); |
| 1196 | synchronize_irq(chip->irq); |
| 1197 | __hw_end: |
| 1198 | if (chip->irq >= 0) |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1199 | free_irq(chip->irq, chip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | if (chip->remap_addr) |
| 1201 | iounmap(chip->remap_addr); |
| 1202 | pci_release_regions(chip->pci); |
| 1203 | pci_disable_device(chip->pci); |
| 1204 | kfree(chip); |
| 1205 | return 0; |
| 1206 | } |
| 1207 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1208 | static int snd_atiixp_dev_free(struct snd_device *device) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1209 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1210 | struct atiixp_modem *chip = device->device_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1211 | return snd_atiixp_free(chip); |
| 1212 | } |
| 1213 | |
| 1214 | /* |
| 1215 | * constructor for chip instance |
| 1216 | */ |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1217 | static int __devinit snd_atiixp_create(struct snd_card *card, |
| 1218 | struct pci_dev *pci, |
| 1219 | struct atiixp_modem **r_chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1221 | static struct snd_device_ops ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1222 | .dev_free = snd_atiixp_dev_free, |
| 1223 | }; |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1224 | struct atiixp_modem *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | int err; |
| 1226 | |
| 1227 | if ((err = pci_enable_device(pci)) < 0) |
| 1228 | return err; |
| 1229 | |
Takashi Iwai | e560d8d | 2005-09-09 14:21:46 +0200 | [diff] [blame] | 1230 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1231 | if (chip == NULL) { |
| 1232 | pci_disable_device(pci); |
| 1233 | return -ENOMEM; |
| 1234 | } |
| 1235 | |
| 1236 | spin_lock_init(&chip->reg_lock); |
Ingo Molnar | 62932df | 2006-01-16 16:34:20 +0100 | [diff] [blame] | 1237 | mutex_init(&chip->open_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1238 | chip->card = card; |
| 1239 | chip->pci = pci; |
| 1240 | chip->irq = -1; |
| 1241 | if ((err = pci_request_regions(pci, "ATI IXP MC97")) < 0) { |
| 1242 | kfree(chip); |
| 1243 | pci_disable_device(pci); |
| 1244 | return err; |
| 1245 | } |
| 1246 | chip->addr = pci_resource_start(pci, 0); |
| 1247 | chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci, 0)); |
| 1248 | if (chip->remap_addr == NULL) { |
| 1249 | snd_printk(KERN_ERR "AC'97 space ioremap problem\n"); |
| 1250 | snd_atiixp_free(chip); |
| 1251 | return -EIO; |
| 1252 | } |
| 1253 | |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1254 | if (request_irq(pci->irq, snd_atiixp_interrupt, SA_INTERRUPT|SA_SHIRQ, |
| 1255 | card->shortname, chip)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1256 | snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); |
| 1257 | snd_atiixp_free(chip); |
| 1258 | return -EBUSY; |
| 1259 | } |
| 1260 | chip->irq = pci->irq; |
| 1261 | pci_set_master(pci); |
| 1262 | synchronize_irq(chip->irq); |
| 1263 | |
| 1264 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| 1265 | snd_atiixp_free(chip); |
| 1266 | return err; |
| 1267 | } |
| 1268 | |
| 1269 | snd_card_set_dev(card, &pci->dev); |
| 1270 | |
| 1271 | *r_chip = chip; |
| 1272 | return 0; |
| 1273 | } |
| 1274 | |
| 1275 | |
| 1276 | static int __devinit snd_atiixp_probe(struct pci_dev *pci, |
| 1277 | const struct pci_device_id *pci_id) |
| 1278 | { |
Takashi Iwai | 74ee4ff | 2005-11-17 15:02:23 +0100 | [diff] [blame] | 1279 | struct snd_card *card; |
| 1280 | struct atiixp_modem *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | unsigned char revision; |
| 1282 | int err; |
| 1283 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 1284 | card = snd_card_new(index, id, THIS_MODULE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1285 | if (card == NULL) |
| 1286 | return -ENOMEM; |
| 1287 | |
| 1288 | pci_read_config_byte(pci, PCI_REVISION_ID, &revision); |
| 1289 | |
| 1290 | strcpy(card->driver, "ATIIXP-MODEM"); |
| 1291 | strcpy(card->shortname, "ATI IXP Modem"); |
| 1292 | if ((err = snd_atiixp_create(card, pci, &chip)) < 0) |
| 1293 | goto __error; |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1294 | card->private_data = chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | |
| 1296 | if ((err = snd_atiixp_aclink_reset(chip)) < 0) |
| 1297 | goto __error; |
| 1298 | |
Clemens Ladisch | b7fe462 | 2005-10-04 08:46:51 +0200 | [diff] [blame] | 1299 | if ((err = snd_atiixp_mixer_new(chip, ac97_clock)) < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1300 | goto __error; |
| 1301 | |
| 1302 | if ((err = snd_atiixp_pcm_new(chip)) < 0) |
| 1303 | goto __error; |
| 1304 | |
| 1305 | snd_atiixp_proc_init(chip); |
| 1306 | |
| 1307 | snd_atiixp_chip_start(chip); |
| 1308 | |
| 1309 | sprintf(card->longname, "%s rev %x at 0x%lx, irq %i", |
| 1310 | card->shortname, revision, chip->addr, chip->irq); |
| 1311 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1312 | if ((err = snd_card_register(card)) < 0) |
| 1313 | goto __error; |
| 1314 | |
| 1315 | pci_set_drvdata(pci, card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1316 | return 0; |
| 1317 | |
| 1318 | __error: |
| 1319 | snd_card_free(card); |
| 1320 | return err; |
| 1321 | } |
| 1322 | |
| 1323 | static void __devexit snd_atiixp_remove(struct pci_dev *pci) |
| 1324 | { |
| 1325 | snd_card_free(pci_get_drvdata(pci)); |
| 1326 | pci_set_drvdata(pci, NULL); |
| 1327 | } |
| 1328 | |
| 1329 | static struct pci_driver driver = { |
| 1330 | .name = "ATI IXP MC97 controller", |
| 1331 | .id_table = snd_atiixp_ids, |
| 1332 | .probe = snd_atiixp_probe, |
| 1333 | .remove = __devexit_p(snd_atiixp_remove), |
Takashi Iwai | 92304cc | 2005-11-17 16:07:46 +0100 | [diff] [blame] | 1334 | #ifdef CONFIG_PM |
| 1335 | .suspend = snd_atiixp_suspend, |
| 1336 | .resume = snd_atiixp_resume, |
| 1337 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | }; |
| 1339 | |
| 1340 | |
| 1341 | static int __init alsa_card_atiixp_init(void) |
| 1342 | { |
Takashi Iwai | 01d25d4 | 2005-04-11 16:58:24 +0200 | [diff] [blame] | 1343 | return pci_register_driver(&driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | } |
| 1345 | |
| 1346 | static void __exit alsa_card_atiixp_exit(void) |
| 1347 | { |
| 1348 | pci_unregister_driver(&driver); |
| 1349 | } |
| 1350 | |
| 1351 | module_init(alsa_card_atiixp_init) |
| 1352 | module_exit(alsa_card_atiixp_exit) |