2 * ALSA driver for ATI IXP 150/200/250/300 AC97 controllers
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
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.
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.
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
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/init.h>
26 #include <linux/pci.h>
27 #include <linux/slab.h>
28 #include <linux/moduleparam.h>
29 #include <linux/mutex.h>
30 #include <sound/core.h>
31 #include <sound/pcm.h>
32 #include <sound/pcm_params.h>
33 #include <sound/info.h>
34 #include <sound/ac97_codec.h>
35 #include <sound/initval.h>
37 MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
38 MODULE_DESCRIPTION("ATI IXP AC97 controller");
39 MODULE_LICENSE("GPL");
40 MODULE_SUPPORTED_DEVICE("{{ATI,IXP150/200/250/300/400}}");
42 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
43 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
44 static int ac97_clock = 48000;
45 static char *ac97_quirk;
46 static int spdif_aclink = 1;
47 static int ac97_codec = -1;
49 module_param(index, int, 0444);
50 MODULE_PARM_DESC(index, "Index value for ATI IXP controller.");
51 module_param(id, charp, 0444);
52 MODULE_PARM_DESC(id, "ID string for ATI IXP controller.");
53 module_param(ac97_clock, int, 0444);
54 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
55 module_param(ac97_quirk, charp, 0444);
56 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
57 module_param(ac97_codec, int, 0444);
58 MODULE_PARM_DESC(ac97_codec, "Specify codec instead of probing.");
59 module_param(spdif_aclink, bool, 0444);
60 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
62 /* just for backward compatibility */
64 module_param(enable, bool, 0444);
70 #define ATI_REG_ISR 0x00 /* interrupt source */
71 #define ATI_REG_ISR_IN_XRUN (1U<<0)
72 #define ATI_REG_ISR_IN_STATUS (1U<<1)
73 #define ATI_REG_ISR_OUT_XRUN (1U<<2)
74 #define ATI_REG_ISR_OUT_STATUS (1U<<3)
75 #define ATI_REG_ISR_SPDF_XRUN (1U<<4)
76 #define ATI_REG_ISR_SPDF_STATUS (1U<<5)
77 #define ATI_REG_ISR_PHYS_INTR (1U<<8)
78 #define ATI_REG_ISR_PHYS_MISMATCH (1U<<9)
79 #define ATI_REG_ISR_CODEC0_NOT_READY (1U<<10)
80 #define ATI_REG_ISR_CODEC1_NOT_READY (1U<<11)
81 #define ATI_REG_ISR_CODEC2_NOT_READY (1U<<12)
82 #define ATI_REG_ISR_NEW_FRAME (1U<<13)
84 #define ATI_REG_IER 0x04 /* interrupt enable */
85 #define ATI_REG_IER_IN_XRUN_EN (1U<<0)
86 #define ATI_REG_IER_IO_STATUS_EN (1U<<1)
87 #define ATI_REG_IER_OUT_XRUN_EN (1U<<2)
88 #define ATI_REG_IER_OUT_XRUN_COND (1U<<3)
89 #define ATI_REG_IER_SPDF_XRUN_EN (1U<<4)
90 #define ATI_REG_IER_SPDF_STATUS_EN (1U<<5)
91 #define ATI_REG_IER_PHYS_INTR_EN (1U<<8)
92 #define ATI_REG_IER_PHYS_MISMATCH_EN (1U<<9)
93 #define ATI_REG_IER_CODEC0_INTR_EN (1U<<10)
94 #define ATI_REG_IER_CODEC1_INTR_EN (1U<<11)
95 #define ATI_REG_IER_CODEC2_INTR_EN (1U<<12)
96 #define ATI_REG_IER_NEW_FRAME_EN (1U<<13) /* (RO */
97 #define ATI_REG_IER_SET_BUS_BUSY (1U<<14) /* (WO) audio is running */
99 #define ATI_REG_CMD 0x08 /* command */
100 #define ATI_REG_CMD_POWERDOWN (1U<<0)
101 #define ATI_REG_CMD_RECEIVE_EN (1U<<1)
102 #define ATI_REG_CMD_SEND_EN (1U<<2)
103 #define ATI_REG_CMD_STATUS_MEM (1U<<3)
104 #define ATI_REG_CMD_SPDF_OUT_EN (1U<<4)
105 #define ATI_REG_CMD_SPDF_STATUS_MEM (1U<<5)
106 #define ATI_REG_CMD_SPDF_THRESHOLD (3U<<6)
107 #define ATI_REG_CMD_SPDF_THRESHOLD_SHIFT 6
108 #define ATI_REG_CMD_IN_DMA_EN (1U<<8)
109 #define ATI_REG_CMD_OUT_DMA_EN (1U<<9)
110 #define ATI_REG_CMD_SPDF_DMA_EN (1U<<10)
111 #define ATI_REG_CMD_SPDF_OUT_STOPPED (1U<<11)
112 #define ATI_REG_CMD_SPDF_CONFIG_MASK (7U<<12)
113 #define ATI_REG_CMD_SPDF_CONFIG_34 (1U<<12)
114 #define ATI_REG_CMD_SPDF_CONFIG_78 (2U<<12)
115 #define ATI_REG_CMD_SPDF_CONFIG_69 (3U<<12)
116 #define ATI_REG_CMD_SPDF_CONFIG_01 (4U<<12)
117 #define ATI_REG_CMD_INTERLEAVE_SPDF (1U<<16)
118 #define ATI_REG_CMD_AUDIO_PRESENT (1U<<20)
119 #define ATI_REG_CMD_INTERLEAVE_IN (1U<<21)
120 #define ATI_REG_CMD_INTERLEAVE_OUT (1U<<22)
121 #define ATI_REG_CMD_LOOPBACK_EN (1U<<23)
122 #define ATI_REG_CMD_PACKED_DIS (1U<<24)
123 #define ATI_REG_CMD_BURST_EN (1U<<25)
124 #define ATI_REG_CMD_PANIC_EN (1U<<26)
125 #define ATI_REG_CMD_MODEM_PRESENT (1U<<27)
126 #define ATI_REG_CMD_ACLINK_ACTIVE (1U<<28)
127 #define ATI_REG_CMD_AC_SOFT_RESET (1U<<29)
128 #define ATI_REG_CMD_AC_SYNC (1U<<30)
129 #define ATI_REG_CMD_AC_RESET (1U<<31)
131 #define ATI_REG_PHYS_OUT_ADDR 0x0c
132 #define ATI_REG_PHYS_OUT_CODEC_MASK (3U<<0)
133 #define ATI_REG_PHYS_OUT_RW (1U<<2)
134 #define ATI_REG_PHYS_OUT_ADDR_EN (1U<<8)
135 #define ATI_REG_PHYS_OUT_ADDR_SHIFT 9
136 #define ATI_REG_PHYS_OUT_DATA_SHIFT 16
138 #define ATI_REG_PHYS_IN_ADDR 0x10
139 #define ATI_REG_PHYS_IN_READ_FLAG (1U<<8)
140 #define ATI_REG_PHYS_IN_ADDR_SHIFT 9
141 #define ATI_REG_PHYS_IN_DATA_SHIFT 16
143 #define ATI_REG_SLOTREQ 0x14
145 #define ATI_REG_COUNTER 0x18
146 #define ATI_REG_COUNTER_SLOT (3U<<0) /* slot # */
147 #define ATI_REG_COUNTER_BITCLOCK (31U<<8)
149 #define ATI_REG_IN_FIFO_THRESHOLD 0x1c
151 #define ATI_REG_IN_DMA_LINKPTR 0x20
152 #define ATI_REG_IN_DMA_DT_START 0x24 /* RO */
153 #define ATI_REG_IN_DMA_DT_NEXT 0x28 /* RO */
154 #define ATI_REG_IN_DMA_DT_CUR 0x2c /* RO */
155 #define ATI_REG_IN_DMA_DT_SIZE 0x30
157 #define ATI_REG_OUT_DMA_SLOT 0x34
158 #define ATI_REG_OUT_DMA_SLOT_BIT(x) (1U << ((x) - 3))
159 #define ATI_REG_OUT_DMA_SLOT_MASK 0x1ff
160 #define ATI_REG_OUT_DMA_THRESHOLD_MASK 0xf800
161 #define ATI_REG_OUT_DMA_THRESHOLD_SHIFT 11
163 #define ATI_REG_OUT_DMA_LINKPTR 0x38
164 #define ATI_REG_OUT_DMA_DT_START 0x3c /* RO */
165 #define ATI_REG_OUT_DMA_DT_NEXT 0x40 /* RO */
166 #define ATI_REG_OUT_DMA_DT_CUR 0x44 /* RO */
167 #define ATI_REG_OUT_DMA_DT_SIZE 0x48
169 #define ATI_REG_SPDF_CMD 0x4c
170 #define ATI_REG_SPDF_CMD_LFSR (1U<<4)
171 #define ATI_REG_SPDF_CMD_SINGLE_CH (1U<<5)
172 #define ATI_REG_SPDF_CMD_LFSR_ACC (0xff<<8) /* RO */
174 #define ATI_REG_SPDF_DMA_LINKPTR 0x50
175 #define ATI_REG_SPDF_DMA_DT_START 0x54 /* RO */
176 #define ATI_REG_SPDF_DMA_DT_NEXT 0x58 /* RO */
177 #define ATI_REG_SPDF_DMA_DT_CUR 0x5c /* RO */
178 #define ATI_REG_SPDF_DMA_DT_SIZE 0x60
180 #define ATI_REG_MODEM_MIRROR 0x7c
181 #define ATI_REG_AUDIO_MIRROR 0x80
183 #define ATI_REG_6CH_REORDER 0x84 /* reorder slots for 6ch */
184 #define ATI_REG_6CH_REORDER_EN (1U<<0) /* 3,4,7,8,6,9 -> 3,4,6,9,7,8 */
186 #define ATI_REG_FIFO_FLUSH 0x88
187 #define ATI_REG_FIFO_OUT_FLUSH (1U<<0)
188 #define ATI_REG_FIFO_IN_FLUSH (1U<<1)
191 #define ATI_REG_LINKPTR_EN (1U<<0)
193 /* [INT|OUT|SPDIF]_DMA_DT_SIZE */
194 #define ATI_REG_DMA_DT_SIZE (0xffffU<<0)
195 #define ATI_REG_DMA_FIFO_USED (0x1fU<<16)
196 #define ATI_REG_DMA_FIFO_FREE (0x1fU<<21)
197 #define ATI_REG_DMA_STATE (7U<<26)
200 #define ATI_MAX_DESCRIPTORS 256 /* max number of descriptor packets */
206 * DMA packate descriptor
209 struct atiixp_dma_desc {
210 u32 addr; /* DMA buffer address */
211 u16 status; /* status bits */
212 u16 size; /* size of the packet in dwords */
213 u32 next; /* address of the next packet descriptor */
219 enum { ATI_DMA_PLAYBACK, ATI_DMA_CAPTURE, ATI_DMA_SPDIF, NUM_ATI_DMAS }; /* DMAs */
220 enum { ATI_PCM_OUT, ATI_PCM_IN, ATI_PCM_SPDIF, NUM_ATI_PCMS }; /* AC97 pcm slots */
221 enum { ATI_PCMDEV_ANALOG, ATI_PCMDEV_DIGITAL, NUM_ATI_PCMDEVS }; /* pcm devices */
223 #define NUM_ATI_CODECS 3
227 * constants and callbacks for each DMA type
229 struct atiixp_dma_ops {
230 int type; /* ATI_DMA_XXX */
231 unsigned int llp_offset; /* LINKPTR offset */
232 unsigned int dt_cur; /* DT_CUR offset */
233 /* called from open callback */
234 void (*enable_dma)(struct atiixp *chip, int on);
235 /* called from trigger (START/STOP) */
236 void (*enable_transfer)(struct atiixp *chip, int on);
237 /* called from trigger (STOP only) */
238 void (*flush_dma)(struct atiixp *chip);
245 const struct atiixp_dma_ops *ops;
246 struct snd_dma_buffer desc_buf;
247 struct snd_pcm_substream *substream; /* assigned PCM substream */
248 unsigned int buf_addr, buf_bytes; /* DMA buffer address, bytes */
249 unsigned int period_bytes, periods;
254 int ac97_pcm_type; /* index # of ac97_pcm to access, -1 = not used */
255 unsigned int saved_curptr;
262 struct snd_card *card;
266 void __iomem *remap_addr;
269 struct snd_ac97_bus *ac97_bus;
270 struct snd_ac97 *ac97[NUM_ATI_CODECS];
274 struct atiixp_dma dmas[NUM_ATI_DMAS];
275 struct ac97_pcm *pcms[NUM_ATI_PCMS];
276 struct snd_pcm *pcmdevs[NUM_ATI_PCMDEVS];
278 int max_channels; /* max. channels for PCM out */
280 unsigned int codec_not_ready_bits; /* for codec detection */
282 int spdif_over_aclink; /* passed from the module option */
283 struct mutex open_mutex; /* playback open mutex */
289 static struct pci_device_id snd_atiixp_ids[] = {
290 { 0x1002, 0x4341, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB200 */
291 { 0x1002, 0x4361, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB300 */
292 { 0x1002, 0x4370, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* SB400 */
296 MODULE_DEVICE_TABLE(pci, snd_atiixp_ids);
298 static struct snd_pci_quirk atiixp_quirks[] __devinitdata = {
299 SND_PCI_QUIRK(0x15bd, 0x3100, "DFI RS482", 0),
308 * update the bits of the given register.
309 * return 1 if the bits changed.
311 static int snd_atiixp_update_bits(struct atiixp *chip, unsigned int reg,
312 unsigned int mask, unsigned int value)
314 void __iomem *addr = chip->remap_addr + reg;
315 unsigned int data, old_data;
316 old_data = data = readl(addr);
319 if (old_data == data)
326 * macros for easy use
328 #define atiixp_write(chip,reg,value) \
329 writel(value, chip->remap_addr + ATI_REG_##reg)
330 #define atiixp_read(chip,reg) \
331 readl(chip->remap_addr + ATI_REG_##reg)
332 #define atiixp_update(chip,reg,mask,val) \
333 snd_atiixp_update_bits(chip, ATI_REG_##reg, mask, val)
336 * handling DMA packets
338 * we allocate a linear buffer for the DMA, and split it to each packet.
339 * in a future version, a scatter-gather buffer should be implemented.
342 #define ATI_DESC_LIST_SIZE \
343 PAGE_ALIGN(ATI_MAX_DESCRIPTORS * sizeof(struct atiixp_dma_desc))
346 * build packets ring for the given buffer size.
348 * IXP handles the buffer descriptors, which are connected as a linked
349 * list. although we can change the list dynamically, in this version,
350 * a static RING of buffer descriptors is used.
352 * the ring is built in this function, and is set up to the hardware.
354 static int atiixp_build_dma_packets(struct atiixp *chip, struct atiixp_dma *dma,
355 struct snd_pcm_substream *substream,
356 unsigned int periods,
357 unsigned int period_bytes)
363 if (periods > ATI_MAX_DESCRIPTORS)
366 if (dma->desc_buf.area == NULL) {
367 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
368 snd_dma_pci_data(chip->pci),
372 dma->period_bytes = dma->periods = 0; /* clear */
375 if (dma->periods == periods && dma->period_bytes == period_bytes)
378 /* reset DMA before changing the descriptor table */
379 spin_lock_irqsave(&chip->reg_lock, flags);
380 writel(0, chip->remap_addr + dma->ops->llp_offset);
381 dma->ops->enable_dma(chip, 0);
382 dma->ops->enable_dma(chip, 1);
383 spin_unlock_irqrestore(&chip->reg_lock, flags);
385 /* fill the entries */
386 addr = (u32)substream->runtime->dma_addr;
387 desc_addr = (u32)dma->desc_buf.addr;
388 for (i = 0; i < periods; i++) {
389 struct atiixp_dma_desc *desc;
390 desc = &((struct atiixp_dma_desc *)dma->desc_buf.area)[i];
391 desc->addr = cpu_to_le32(addr);
393 desc->size = period_bytes >> 2; /* in dwords */
394 desc_addr += sizeof(struct atiixp_dma_desc);
395 if (i == periods - 1)
396 desc->next = cpu_to_le32((u32)dma->desc_buf.addr);
398 desc->next = cpu_to_le32(desc_addr);
399 addr += period_bytes;
402 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
403 chip->remap_addr + dma->ops->llp_offset);
405 dma->period_bytes = period_bytes;
406 dma->periods = periods;
412 * remove the ring buffer and release it if assigned
414 static void atiixp_clear_dma_packets(struct atiixp *chip, struct atiixp_dma *dma,
415 struct snd_pcm_substream *substream)
417 if (dma->desc_buf.area) {
418 writel(0, chip->remap_addr + dma->ops->llp_offset);
419 snd_dma_free_pages(&dma->desc_buf);
420 dma->desc_buf.area = NULL;
427 static int snd_atiixp_acquire_codec(struct atiixp *chip)
431 while (atiixp_read(chip, PHYS_OUT_ADDR) & ATI_REG_PHYS_OUT_ADDR_EN) {
433 snd_printk(KERN_WARNING "atiixp: codec acquire timeout\n");
441 static unsigned short snd_atiixp_codec_read(struct atiixp *chip, unsigned short codec, unsigned short reg)
446 if (snd_atiixp_acquire_codec(chip) < 0)
448 data = (reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
449 ATI_REG_PHYS_OUT_ADDR_EN |
450 ATI_REG_PHYS_OUT_RW |
452 atiixp_write(chip, PHYS_OUT_ADDR, data);
453 if (snd_atiixp_acquire_codec(chip) < 0)
457 data = atiixp_read(chip, PHYS_IN_ADDR);
458 if (data & ATI_REG_PHYS_IN_READ_FLAG)
459 return data >> ATI_REG_PHYS_IN_DATA_SHIFT;
462 /* time out may happen during reset */
464 snd_printk(KERN_WARNING "atiixp: codec read timeout (reg %x)\n", reg);
469 static void snd_atiixp_codec_write(struct atiixp *chip, unsigned short codec,
470 unsigned short reg, unsigned short val)
474 if (snd_atiixp_acquire_codec(chip) < 0)
476 data = ((unsigned int)val << ATI_REG_PHYS_OUT_DATA_SHIFT) |
477 ((unsigned int)reg << ATI_REG_PHYS_OUT_ADDR_SHIFT) |
478 ATI_REG_PHYS_OUT_ADDR_EN | codec;
479 atiixp_write(chip, PHYS_OUT_ADDR, data);
483 static unsigned short snd_atiixp_ac97_read(struct snd_ac97 *ac97,
486 struct atiixp *chip = ac97->private_data;
487 return snd_atiixp_codec_read(chip, ac97->num, reg);
491 static void snd_atiixp_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
494 struct atiixp *chip = ac97->private_data;
495 snd_atiixp_codec_write(chip, ac97->num, reg, val);
501 static int snd_atiixp_aclink_reset(struct atiixp *chip)
505 /* reset powerdoewn */
506 if (atiixp_update(chip, CMD, ATI_REG_CMD_POWERDOWN, 0))
509 /* perform a software reset */
510 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, ATI_REG_CMD_AC_SOFT_RESET);
511 atiixp_read(chip, CMD);
513 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SOFT_RESET, 0);
516 while (! (atiixp_read(chip, CMD) & ATI_REG_CMD_ACLINK_ACTIVE)) {
517 /* do a hard reset */
518 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
519 ATI_REG_CMD_AC_SYNC);
520 atiixp_read(chip, CMD);
522 atiixp_update(chip, CMD, ATI_REG_CMD_AC_RESET, ATI_REG_CMD_AC_RESET);
524 snd_printk(KERN_ERR "atiixp: codec reset timeout\n");
529 /* deassert RESET and assert SYNC to make sure */
530 atiixp_update(chip, CMD, ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET,
531 ATI_REG_CMD_AC_SYNC|ATI_REG_CMD_AC_RESET);
537 static int snd_atiixp_aclink_down(struct atiixp *chip)
539 // if (atiixp_read(chip, MODEM_MIRROR) & 0x1) /* modem running, too? */
541 atiixp_update(chip, CMD,
542 ATI_REG_CMD_POWERDOWN | ATI_REG_CMD_AC_RESET,
543 ATI_REG_CMD_POWERDOWN);
549 * auto-detection of codecs
551 * the IXP chip can generate interrupts for the non-existing codecs.
552 * NEW_FRAME interrupt is used to make sure that the interrupt is generated
553 * even if all three codecs are connected.
556 #define ALL_CODEC_NOT_READY \
557 (ATI_REG_ISR_CODEC0_NOT_READY |\
558 ATI_REG_ISR_CODEC1_NOT_READY |\
559 ATI_REG_ISR_CODEC2_NOT_READY)
560 #define CODEC_CHECK_BITS (ALL_CODEC_NOT_READY|ATI_REG_ISR_NEW_FRAME)
562 static int __devinit ac97_probing_bugs(struct pci_dev *pci)
564 const struct snd_pci_quirk *q;
566 q = snd_pci_quirk_lookup(pci, atiixp_quirks);
568 snd_printdd(KERN_INFO "Atiixp quirk for %s. "
569 "Forcing codec %d\n", q->name, q->value);
572 /* this hardware doesn't need workarounds. Probe for codec */
576 static int __devinit snd_atiixp_codec_detect(struct atiixp *chip)
580 chip->codec_not_ready_bits = 0;
581 if (ac97_codec == -1)
582 ac97_codec = ac97_probing_bugs(chip->pci);
583 if (ac97_codec >= 0) {
584 chip->codec_not_ready_bits |=
585 CODEC_CHECK_BITS ^ (1 << (ac97_codec + 10));
589 atiixp_write(chip, IER, CODEC_CHECK_BITS);
590 /* wait for the interrupts */
592 while (timeout-- > 0) {
594 if (chip->codec_not_ready_bits)
597 atiixp_write(chip, IER, 0); /* disable irqs */
599 if ((chip->codec_not_ready_bits & ALL_CODEC_NOT_READY) == ALL_CODEC_NOT_READY) {
600 snd_printk(KERN_ERR "atiixp: no codec detected!\n");
608 * enable DMA and irqs
610 static int snd_atiixp_chip_start(struct atiixp *chip)
614 /* set up spdif, enable burst mode */
615 reg = atiixp_read(chip, CMD);
616 reg |= 0x02 << ATI_REG_CMD_SPDF_THRESHOLD_SHIFT;
617 reg |= ATI_REG_CMD_BURST_EN;
618 atiixp_write(chip, CMD, reg);
620 reg = atiixp_read(chip, SPDF_CMD);
621 reg &= ~(ATI_REG_SPDF_CMD_LFSR|ATI_REG_SPDF_CMD_SINGLE_CH);
622 atiixp_write(chip, SPDF_CMD, reg);
624 /* clear all interrupt source */
625 atiixp_write(chip, ISR, 0xffffffff);
627 atiixp_write(chip, IER,
628 ATI_REG_IER_IO_STATUS_EN |
629 ATI_REG_IER_IN_XRUN_EN |
630 ATI_REG_IER_OUT_XRUN_EN |
631 ATI_REG_IER_SPDF_XRUN_EN |
632 ATI_REG_IER_SPDF_STATUS_EN);
638 * disable DMA and IRQs
640 static int snd_atiixp_chip_stop(struct atiixp *chip)
642 /* clear interrupt source */
643 atiixp_write(chip, ISR, atiixp_read(chip, ISR));
645 atiixp_write(chip, IER, 0);
655 * pointer callback simplly reads XXX_DMA_DT_CUR register as the current
656 * position. when SG-buffer is implemented, the offset must be calculated
659 static snd_pcm_uframes_t snd_atiixp_pcm_pointer(struct snd_pcm_substream *substream)
661 struct atiixp *chip = snd_pcm_substream_chip(substream);
662 struct snd_pcm_runtime *runtime = substream->runtime;
663 struct atiixp_dma *dma = runtime->private_data;
668 curptr = readl(chip->remap_addr + dma->ops->dt_cur);
669 if (curptr < dma->buf_addr)
671 curptr -= dma->buf_addr;
672 if (curptr >= dma->buf_bytes)
674 return bytes_to_frames(runtime, curptr);
676 snd_printd("atiixp: invalid DMA pointer read 0x%x (buf=%x)\n",
677 readl(chip->remap_addr + dma->ops->dt_cur), dma->buf_addr);
682 * XRUN detected, and stop the PCM substream
684 static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
686 if (! dma->substream || ! dma->running)
688 snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma->ops->type);
689 snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
693 * the period ack. update the substream.
695 static void snd_atiixp_update_dma(struct atiixp *chip, struct atiixp_dma *dma)
697 if (! dma->substream || ! dma->running)
699 snd_pcm_period_elapsed(dma->substream);
702 /* set BUS_BUSY interrupt bit if any DMA is running */
703 /* call with spinlock held */
704 static void snd_atiixp_check_bus_busy(struct atiixp *chip)
706 unsigned int bus_busy;
707 if (atiixp_read(chip, CMD) & (ATI_REG_CMD_SEND_EN |
708 ATI_REG_CMD_RECEIVE_EN |
709 ATI_REG_CMD_SPDF_OUT_EN))
710 bus_busy = ATI_REG_IER_SET_BUS_BUSY;
713 atiixp_update(chip, IER, ATI_REG_IER_SET_BUS_BUSY, bus_busy);
716 /* common trigger callback
717 * calling the lowlevel callbacks in it
719 static int snd_atiixp_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
721 struct atiixp *chip = snd_pcm_substream_chip(substream);
722 struct atiixp_dma *dma = substream->runtime->private_data;
725 if (snd_BUG_ON(!dma->ops->enable_transfer ||
726 !dma->ops->flush_dma))
729 spin_lock(&chip->reg_lock);
731 case SNDRV_PCM_TRIGGER_START:
732 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
733 case SNDRV_PCM_TRIGGER_RESUME:
734 dma->ops->enable_transfer(chip, 1);
738 case SNDRV_PCM_TRIGGER_STOP:
739 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
740 case SNDRV_PCM_TRIGGER_SUSPEND:
741 dma->ops->enable_transfer(chip, 0);
743 dma->suspended = cmd == SNDRV_PCM_TRIGGER_SUSPEND;
750 snd_atiixp_check_bus_busy(chip);
751 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
752 dma->ops->flush_dma(chip);
753 snd_atiixp_check_bus_busy(chip);
756 spin_unlock(&chip->reg_lock);
762 * lowlevel callbacks for each DMA type
764 * every callback is supposed to be called in chip->reg_lock spinlock
767 /* flush FIFO of analog OUT DMA */
768 static void atiixp_out_flush_dma(struct atiixp *chip)
770 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);
773 /* enable/disable analog OUT DMA */
774 static void atiixp_out_enable_dma(struct atiixp *chip, int on)
777 data = atiixp_read(chip, CMD);
779 if (data & ATI_REG_CMD_OUT_DMA_EN)
781 atiixp_out_flush_dma(chip);
782 data |= ATI_REG_CMD_OUT_DMA_EN;
784 data &= ~ATI_REG_CMD_OUT_DMA_EN;
785 atiixp_write(chip, CMD, data);
788 /* start/stop transfer over OUT DMA */
789 static void atiixp_out_enable_transfer(struct atiixp *chip, int on)
791 atiixp_update(chip, CMD, ATI_REG_CMD_SEND_EN,
792 on ? ATI_REG_CMD_SEND_EN : 0);
795 /* enable/disable analog IN DMA */
796 static void atiixp_in_enable_dma(struct atiixp *chip, int on)
798 atiixp_update(chip, CMD, ATI_REG_CMD_IN_DMA_EN,
799 on ? ATI_REG_CMD_IN_DMA_EN : 0);
802 /* start/stop analog IN DMA */
803 static void atiixp_in_enable_transfer(struct atiixp *chip, int on)
806 unsigned int data = atiixp_read(chip, CMD);
807 if (! (data & ATI_REG_CMD_RECEIVE_EN)) {
808 data |= ATI_REG_CMD_RECEIVE_EN;
809 #if 0 /* FIXME: this causes the endless loop */
810 /* wait until slot 3/4 are finished */
811 while ((atiixp_read(chip, COUNTER) &
812 ATI_REG_COUNTER_SLOT) != 5)
815 atiixp_write(chip, CMD, data);
818 atiixp_update(chip, CMD, ATI_REG_CMD_RECEIVE_EN, 0);
821 /* flush FIFO of analog IN DMA */
822 static void atiixp_in_flush_dma(struct atiixp *chip)
824 atiixp_write(chip, FIFO_FLUSH, ATI_REG_FIFO_IN_FLUSH);
827 /* enable/disable SPDIF OUT DMA */
828 static void atiixp_spdif_enable_dma(struct atiixp *chip, int on)
830 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_DMA_EN,
831 on ? ATI_REG_CMD_SPDF_DMA_EN : 0);
834 /* start/stop SPDIF OUT DMA */
835 static void atiixp_spdif_enable_transfer(struct atiixp *chip, int on)
838 data = atiixp_read(chip, CMD);
840 data |= ATI_REG_CMD_SPDF_OUT_EN;
842 data &= ~ATI_REG_CMD_SPDF_OUT_EN;
843 atiixp_write(chip, CMD, data);
846 /* flush FIFO of SPDIF OUT DMA */
847 static void atiixp_spdif_flush_dma(struct atiixp *chip)
851 /* DMA off, transfer on */
852 atiixp_spdif_enable_dma(chip, 0);
853 atiixp_spdif_enable_transfer(chip, 1);
857 if (! (atiixp_read(chip, SPDF_DMA_DT_SIZE) & ATI_REG_DMA_FIFO_USED))
860 } while (timeout-- > 0);
862 atiixp_spdif_enable_transfer(chip, 0);
865 /* set up slots and formats for SPDIF OUT */
866 static int snd_atiixp_spdif_prepare(struct snd_pcm_substream *substream)
868 struct atiixp *chip = snd_pcm_substream_chip(substream);
870 spin_lock_irq(&chip->reg_lock);
871 if (chip->spdif_over_aclink) {
873 /* enable slots 10/11 */
874 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK,
875 ATI_REG_CMD_SPDF_CONFIG_01);
876 data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
877 data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
878 ATI_REG_OUT_DMA_SLOT_BIT(11);
879 data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
880 atiixp_write(chip, OUT_DMA_SLOT, data);
881 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
882 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
883 ATI_REG_CMD_INTERLEAVE_OUT : 0);
885 atiixp_update(chip, CMD, ATI_REG_CMD_SPDF_CONFIG_MASK, 0);
886 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_SPDF, 0);
888 spin_unlock_irq(&chip->reg_lock);
892 /* set up slots and formats for analog OUT */
893 static int snd_atiixp_playback_prepare(struct snd_pcm_substream *substream)
895 struct atiixp *chip = snd_pcm_substream_chip(substream);
898 spin_lock_irq(&chip->reg_lock);
899 data = atiixp_read(chip, OUT_DMA_SLOT) & ~ATI_REG_OUT_DMA_SLOT_MASK;
900 switch (substream->runtime->channels) {
902 data |= ATI_REG_OUT_DMA_SLOT_BIT(10) |
903 ATI_REG_OUT_DMA_SLOT_BIT(11);
906 data |= ATI_REG_OUT_DMA_SLOT_BIT(7) |
907 ATI_REG_OUT_DMA_SLOT_BIT(8);
910 data |= ATI_REG_OUT_DMA_SLOT_BIT(6) |
911 ATI_REG_OUT_DMA_SLOT_BIT(9);
914 data |= ATI_REG_OUT_DMA_SLOT_BIT(3) |
915 ATI_REG_OUT_DMA_SLOT_BIT(4);
919 /* set output threshold */
920 data |= 0x04 << ATI_REG_OUT_DMA_THRESHOLD_SHIFT;
921 atiixp_write(chip, OUT_DMA_SLOT, data);
923 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_OUT,
924 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
925 ATI_REG_CMD_INTERLEAVE_OUT : 0);
928 * enable 6 channel re-ordering bit if needed
930 atiixp_update(chip, 6CH_REORDER, ATI_REG_6CH_REORDER_EN,
931 substream->runtime->channels >= 6 ? ATI_REG_6CH_REORDER_EN: 0);
933 spin_unlock_irq(&chip->reg_lock);
937 /* set up slots and formats for analog IN */
938 static int snd_atiixp_capture_prepare(struct snd_pcm_substream *substream)
940 struct atiixp *chip = snd_pcm_substream_chip(substream);
942 spin_lock_irq(&chip->reg_lock);
943 atiixp_update(chip, CMD, ATI_REG_CMD_INTERLEAVE_IN,
944 substream->runtime->format == SNDRV_PCM_FORMAT_S16_LE ?
945 ATI_REG_CMD_INTERLEAVE_IN : 0);
946 spin_unlock_irq(&chip->reg_lock);
951 * hw_params - allocate the buffer and set up buffer descriptors
953 static int snd_atiixp_pcm_hw_params(struct snd_pcm_substream *substream,
954 struct snd_pcm_hw_params *hw_params)
956 struct atiixp *chip = snd_pcm_substream_chip(substream);
957 struct atiixp_dma *dma = substream->runtime->private_data;
960 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
963 dma->buf_addr = substream->runtime->dma_addr;
964 dma->buf_bytes = params_buffer_bytes(hw_params);
966 err = atiixp_build_dma_packets(chip, dma, substream,
967 params_periods(hw_params),
968 params_period_bytes(hw_params));
972 if (dma->ac97_pcm_type >= 0) {
973 struct ac97_pcm *pcm = chip->pcms[dma->ac97_pcm_type];
974 /* PCM is bound to AC97 codec(s)
975 * set up the AC97 codecs
977 if (dma->pcm_open_flag) {
978 snd_ac97_pcm_close(pcm);
979 dma->pcm_open_flag = 0;
981 err = snd_ac97_pcm_open(pcm, params_rate(hw_params),
982 params_channels(hw_params),
985 dma->pcm_open_flag = 1;
991 static int snd_atiixp_pcm_hw_free(struct snd_pcm_substream *substream)
993 struct atiixp *chip = snd_pcm_substream_chip(substream);
994 struct atiixp_dma *dma = substream->runtime->private_data;
996 if (dma->pcm_open_flag) {
997 struct ac97_pcm *pcm = chip->pcms[dma->ac97_pcm_type];
998 snd_ac97_pcm_close(pcm);
999 dma->pcm_open_flag = 0;
1001 atiixp_clear_dma_packets(chip, dma, substream);
1002 snd_pcm_lib_free_pages(substream);
1008 * pcm hardware definition, identical for all DMA types
1010 static struct snd_pcm_hardware snd_atiixp_pcm_hw =
1012 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1013 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1014 SNDRV_PCM_INFO_PAUSE |
1015 SNDRV_PCM_INFO_RESUME |
1016 SNDRV_PCM_INFO_MMAP_VALID),
1017 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
1018 .rates = SNDRV_PCM_RATE_48000,
1023 .buffer_bytes_max = 256 * 1024,
1024 .period_bytes_min = 32,
1025 .period_bytes_max = 128 * 1024,
1027 .periods_max = ATI_MAX_DESCRIPTORS,
1030 static int snd_atiixp_pcm_open(struct snd_pcm_substream *substream,
1031 struct atiixp_dma *dma, int pcm_type)
1033 struct atiixp *chip = snd_pcm_substream_chip(substream);
1034 struct snd_pcm_runtime *runtime = substream->runtime;
1037 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
1042 dma->substream = substream;
1043 runtime->hw = snd_atiixp_pcm_hw;
1044 dma->ac97_pcm_type = pcm_type;
1045 if (pcm_type >= 0) {
1046 runtime->hw.rates = chip->pcms[pcm_type]->rates;
1047 snd_pcm_limit_hw_rates(runtime);
1050 runtime->hw.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1052 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1054 runtime->private_data = dma;
1056 /* enable DMA bits */
1057 spin_lock_irq(&chip->reg_lock);
1058 dma->ops->enable_dma(chip, 1);
1059 spin_unlock_irq(&chip->reg_lock);
1065 static int snd_atiixp_pcm_close(struct snd_pcm_substream *substream,
1066 struct atiixp_dma *dma)
1068 struct atiixp *chip = snd_pcm_substream_chip(substream);
1069 /* disable DMA bits */
1070 if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
1072 spin_lock_irq(&chip->reg_lock);
1073 dma->ops->enable_dma(chip, 0);
1074 spin_unlock_irq(&chip->reg_lock);
1075 dma->substream = NULL;
1082 static int snd_atiixp_playback_open(struct snd_pcm_substream *substream)
1084 struct atiixp *chip = snd_pcm_substream_chip(substream);
1087 mutex_lock(&chip->open_mutex);
1088 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 0);
1089 mutex_unlock(&chip->open_mutex);
1092 substream->runtime->hw.channels_max = chip->max_channels;
1093 if (chip->max_channels > 2)
1094 /* channels must be even */
1095 snd_pcm_hw_constraint_step(substream->runtime, 0,
1096 SNDRV_PCM_HW_PARAM_CHANNELS, 2);
1100 static int snd_atiixp_playback_close(struct snd_pcm_substream *substream)
1102 struct atiixp *chip = snd_pcm_substream_chip(substream);
1104 mutex_lock(&chip->open_mutex);
1105 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1106 mutex_unlock(&chip->open_mutex);
1110 static int snd_atiixp_capture_open(struct snd_pcm_substream *substream)
1112 struct atiixp *chip = snd_pcm_substream_chip(substream);
1113 return snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_CAPTURE], 1);
1116 static int snd_atiixp_capture_close(struct snd_pcm_substream *substream)
1118 struct atiixp *chip = snd_pcm_substream_chip(substream);
1119 return snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_CAPTURE]);
1122 static int snd_atiixp_spdif_open(struct snd_pcm_substream *substream)
1124 struct atiixp *chip = snd_pcm_substream_chip(substream);
1126 mutex_lock(&chip->open_mutex);
1127 if (chip->spdif_over_aclink) /* share DMA_PLAYBACK */
1128 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_PLAYBACK], 2);
1130 err = snd_atiixp_pcm_open(substream, &chip->dmas[ATI_DMA_SPDIF], -1);
1131 mutex_unlock(&chip->open_mutex);
1135 static int snd_atiixp_spdif_close(struct snd_pcm_substream *substream)
1137 struct atiixp *chip = snd_pcm_substream_chip(substream);
1139 mutex_lock(&chip->open_mutex);
1140 if (chip->spdif_over_aclink)
1141 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_PLAYBACK]);
1143 err = snd_atiixp_pcm_close(substream, &chip->dmas[ATI_DMA_SPDIF]);
1144 mutex_unlock(&chip->open_mutex);
1149 static struct snd_pcm_ops snd_atiixp_playback_ops = {
1150 .open = snd_atiixp_playback_open,
1151 .close = snd_atiixp_playback_close,
1152 .ioctl = snd_pcm_lib_ioctl,
1153 .hw_params = snd_atiixp_pcm_hw_params,
1154 .hw_free = snd_atiixp_pcm_hw_free,
1155 .prepare = snd_atiixp_playback_prepare,
1156 .trigger = snd_atiixp_pcm_trigger,
1157 .pointer = snd_atiixp_pcm_pointer,
1161 static struct snd_pcm_ops snd_atiixp_capture_ops = {
1162 .open = snd_atiixp_capture_open,
1163 .close = snd_atiixp_capture_close,
1164 .ioctl = snd_pcm_lib_ioctl,
1165 .hw_params = snd_atiixp_pcm_hw_params,
1166 .hw_free = snd_atiixp_pcm_hw_free,
1167 .prepare = snd_atiixp_capture_prepare,
1168 .trigger = snd_atiixp_pcm_trigger,
1169 .pointer = snd_atiixp_pcm_pointer,
1172 /* SPDIF playback */
1173 static struct snd_pcm_ops snd_atiixp_spdif_ops = {
1174 .open = snd_atiixp_spdif_open,
1175 .close = snd_atiixp_spdif_close,
1176 .ioctl = snd_pcm_lib_ioctl,
1177 .hw_params = snd_atiixp_pcm_hw_params,
1178 .hw_free = snd_atiixp_pcm_hw_free,
1179 .prepare = snd_atiixp_spdif_prepare,
1180 .trigger = snd_atiixp_pcm_trigger,
1181 .pointer = snd_atiixp_pcm_pointer,
1184 static struct ac97_pcm atiixp_pcm_defs[] __devinitdata = {
1189 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1190 (1 << AC97_SLOT_PCM_RIGHT) |
1191 (1 << AC97_SLOT_PCM_CENTER) |
1192 (1 << AC97_SLOT_PCM_SLEFT) |
1193 (1 << AC97_SLOT_PCM_SRIGHT) |
1194 (1 << AC97_SLOT_LFE)
1203 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1204 (1 << AC97_SLOT_PCM_RIGHT)
1208 /* S/PDIF OUT (optional) */
1213 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1214 (1 << AC97_SLOT_SPDIF_RIGHT2)
1220 static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
1221 .type = ATI_DMA_PLAYBACK,
1222 .llp_offset = ATI_REG_OUT_DMA_LINKPTR,
1223 .dt_cur = ATI_REG_OUT_DMA_DT_CUR,
1224 .enable_dma = atiixp_out_enable_dma,
1225 .enable_transfer = atiixp_out_enable_transfer,
1226 .flush_dma = atiixp_out_flush_dma,
1229 static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
1230 .type = ATI_DMA_CAPTURE,
1231 .llp_offset = ATI_REG_IN_DMA_LINKPTR,
1232 .dt_cur = ATI_REG_IN_DMA_DT_CUR,
1233 .enable_dma = atiixp_in_enable_dma,
1234 .enable_transfer = atiixp_in_enable_transfer,
1235 .flush_dma = atiixp_in_flush_dma,
1238 static struct atiixp_dma_ops snd_atiixp_spdif_dma_ops = {
1239 .type = ATI_DMA_SPDIF,
1240 .llp_offset = ATI_REG_SPDF_DMA_LINKPTR,
1241 .dt_cur = ATI_REG_SPDF_DMA_DT_CUR,
1242 .enable_dma = atiixp_spdif_enable_dma,
1243 .enable_transfer = atiixp_spdif_enable_transfer,
1244 .flush_dma = atiixp_spdif_flush_dma,
1248 static int __devinit snd_atiixp_pcm_new(struct atiixp *chip)
1250 struct snd_pcm *pcm;
1251 struct snd_ac97_bus *pbus = chip->ac97_bus;
1252 int err, i, num_pcms;
1254 /* initialize constants */
1255 chip->dmas[ATI_DMA_PLAYBACK].ops = &snd_atiixp_playback_dma_ops;
1256 chip->dmas[ATI_DMA_CAPTURE].ops = &snd_atiixp_capture_dma_ops;
1257 if (! chip->spdif_over_aclink)
1258 chip->dmas[ATI_DMA_SPDIF].ops = &snd_atiixp_spdif_dma_ops;
1260 /* assign AC97 pcm */
1261 if (chip->spdif_over_aclink)
1265 err = snd_ac97_pcm_assign(pbus, num_pcms, atiixp_pcm_defs);
1268 for (i = 0; i < num_pcms; i++)
1269 chip->pcms[i] = &pbus->pcms[i];
1271 chip->max_channels = 2;
1272 if (pbus->pcms[ATI_PCM_OUT].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
1273 if (pbus->pcms[ATI_PCM_OUT].r[0].slots & (1 << AC97_SLOT_LFE))
1274 chip->max_channels = 6;
1276 chip->max_channels = 4;
1279 /* PCM #0: analog I/O */
1280 err = snd_pcm_new(chip->card, "ATI IXP AC97",
1281 ATI_PCMDEV_ANALOG, 1, 1, &pcm);
1284 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_playback_ops);
1285 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_atiixp_capture_ops);
1286 pcm->private_data = chip;
1287 strcpy(pcm->name, "ATI IXP AC97");
1288 chip->pcmdevs[ATI_PCMDEV_ANALOG] = pcm;
1290 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1291 snd_dma_pci_data(chip->pci),
1294 /* no SPDIF support on codec? */
1295 if (chip->pcms[ATI_PCM_SPDIF] && ! chip->pcms[ATI_PCM_SPDIF]->rates)
1298 /* FIXME: non-48k sample rate doesn't work on my test machine with AD1888 */
1299 if (chip->pcms[ATI_PCM_SPDIF])
1300 chip->pcms[ATI_PCM_SPDIF]->rates = SNDRV_PCM_RATE_48000;
1302 /* PCM #1: spdif playback */
1303 err = snd_pcm_new(chip->card, "ATI IXP IEC958",
1304 ATI_PCMDEV_DIGITAL, 1, 0, &pcm);
1307 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_atiixp_spdif_ops);
1308 pcm->private_data = chip;
1309 if (chip->spdif_over_aclink)
1310 strcpy(pcm->name, "ATI IXP IEC958 (AC97)");
1312 strcpy(pcm->name, "ATI IXP IEC958 (Direct)");
1313 chip->pcmdevs[ATI_PCMDEV_DIGITAL] = pcm;
1315 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1316 snd_dma_pci_data(chip->pci),
1319 /* pre-select AC97 SPDIF slots 10/11 */
1320 for (i = 0; i < NUM_ATI_CODECS; i++) {
1322 snd_ac97_update_bits(chip->ac97[i],
1323 AC97_EXTENDED_STATUS,
1324 0x03 << 4, 0x03 << 4);
1335 static irqreturn_t snd_atiixp_interrupt(int irq, void *dev_id)
1337 struct atiixp *chip = dev_id;
1338 unsigned int status;
1340 status = atiixp_read(chip, ISR);
1345 /* process audio DMA */
1346 if (status & ATI_REG_ISR_OUT_XRUN)
1347 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1348 else if (status & ATI_REG_ISR_OUT_STATUS)
1349 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_PLAYBACK]);
1350 if (status & ATI_REG_ISR_IN_XRUN)
1351 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1352 else if (status & ATI_REG_ISR_IN_STATUS)
1353 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_CAPTURE]);
1354 if (! chip->spdif_over_aclink) {
1355 if (status & ATI_REG_ISR_SPDF_XRUN)
1356 snd_atiixp_xrun_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
1357 else if (status & ATI_REG_ISR_SPDF_STATUS)
1358 snd_atiixp_update_dma(chip, &chip->dmas[ATI_DMA_SPDIF]);
1361 /* for codec detection */
1362 if (status & CODEC_CHECK_BITS) {
1363 unsigned int detected;
1364 detected = status & CODEC_CHECK_BITS;
1365 spin_lock(&chip->reg_lock);
1366 chip->codec_not_ready_bits |= detected;
1367 atiixp_update(chip, IER, detected, 0); /* disable the detected irqs */
1368 spin_unlock(&chip->reg_lock);
1372 atiixp_write(chip, ISR, status);
1379 * ac97 mixer section
1382 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1384 .subvendor = 0x103c,
1385 .subdevice = 0x006b,
1386 .name = "HP Pavilion ZV5030US",
1387 .type = AC97_TUNE_MUTE_LED
1390 .subvendor = 0x103c,
1391 .subdevice = 0x308b,
1392 .name = "HP nx6125",
1393 .type = AC97_TUNE_MUTE_LED
1395 { } /* terminator */
1398 static int __devinit snd_atiixp_mixer_new(struct atiixp *chip, int clock,
1399 const char *quirk_override)
1401 struct snd_ac97_bus *pbus;
1402 struct snd_ac97_template ac97;
1405 static struct snd_ac97_bus_ops ops = {
1406 .write = snd_atiixp_ac97_write,
1407 .read = snd_atiixp_ac97_read,
1409 static unsigned int codec_skip[NUM_ATI_CODECS] = {
1410 ATI_REG_ISR_CODEC0_NOT_READY,
1411 ATI_REG_ISR_CODEC1_NOT_READY,
1412 ATI_REG_ISR_CODEC2_NOT_READY,
1415 if (snd_atiixp_codec_detect(chip) < 0)
1418 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
1420 pbus->clock = clock;
1421 chip->ac97_bus = pbus;
1424 for (i = 0; i < NUM_ATI_CODECS; i++) {
1425 if (chip->codec_not_ready_bits & codec_skip[i])
1427 memset(&ac97, 0, sizeof(ac97));
1428 ac97.private_data = chip;
1429 ac97.pci = chip->pci;
1431 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1432 if (! chip->spdif_over_aclink)
1433 ac97.scaps |= AC97_SCAP_NO_SPDIF;
1434 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
1435 chip->ac97[i] = NULL; /* to be sure */
1436 snd_printdd("atiixp: codec %d not available for audio\n", i);
1442 if (! codec_count) {
1443 snd_printk(KERN_ERR "atiixp: no codec available\n");
1447 snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
1457 static int snd_atiixp_suspend(struct pci_dev *pci, pm_message_t state)
1459 struct snd_card *card = pci_get_drvdata(pci);
1460 struct atiixp *chip = card->private_data;
1463 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1464 for (i = 0; i < NUM_ATI_PCMDEVS; i++)
1465 if (chip->pcmdevs[i]) {
1466 struct atiixp_dma *dma = &chip->dmas[i];
1467 if (dma->substream && dma->running)
1468 dma->saved_curptr = readl(chip->remap_addr +
1470 snd_pcm_suspend_all(chip->pcmdevs[i]);
1472 for (i = 0; i < NUM_ATI_CODECS; i++)
1473 snd_ac97_suspend(chip->ac97[i]);
1474 snd_atiixp_aclink_down(chip);
1475 snd_atiixp_chip_stop(chip);
1477 pci_disable_device(pci);
1478 pci_save_state(pci);
1479 pci_set_power_state(pci, pci_choose_state(pci, state));
1483 static int snd_atiixp_resume(struct pci_dev *pci)
1485 struct snd_card *card = pci_get_drvdata(pci);
1486 struct atiixp *chip = card->private_data;
1489 pci_set_power_state(pci, PCI_D0);
1490 pci_restore_state(pci);
1491 if (pci_enable_device(pci) < 0) {
1492 printk(KERN_ERR "atiixp: pci_enable_device failed, "
1493 "disabling device\n");
1494 snd_card_disconnect(card);
1497 pci_set_master(pci);
1499 snd_atiixp_aclink_reset(chip);
1500 snd_atiixp_chip_start(chip);
1502 for (i = 0; i < NUM_ATI_CODECS; i++)
1503 snd_ac97_resume(chip->ac97[i]);
1505 for (i = 0; i < NUM_ATI_PCMDEVS; i++)
1506 if (chip->pcmdevs[i]) {
1507 struct atiixp_dma *dma = &chip->dmas[i];
1508 if (dma->substream && dma->suspended) {
1509 dma->ops->enable_dma(chip, 1);
1510 dma->substream->ops->prepare(dma->substream);
1511 writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
1512 chip->remap_addr + dma->ops->llp_offset);
1513 writel(dma->saved_curptr, chip->remap_addr +
1518 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1521 #endif /* CONFIG_PM */
1524 #ifdef CONFIG_PROC_FS
1526 * proc interface for register dump
1529 static void snd_atiixp_proc_read(struct snd_info_entry *entry,
1530 struct snd_info_buffer *buffer)
1532 struct atiixp *chip = entry->private_data;
1535 for (i = 0; i < 256; i += 4)
1536 snd_iprintf(buffer, "%02x: %08x\n", i, readl(chip->remap_addr + i));
1539 static void __devinit snd_atiixp_proc_init(struct atiixp *chip)
1541 struct snd_info_entry *entry;
1543 if (! snd_card_proc_new(chip->card, "atiixp", &entry))
1544 snd_info_set_text_ops(entry, chip, snd_atiixp_proc_read);
1546 #else /* !CONFIG_PROC_FS */
1547 #define snd_atiixp_proc_init(chip)
1555 static int snd_atiixp_free(struct atiixp *chip)
1559 snd_atiixp_chip_stop(chip);
1563 free_irq(chip->irq, chip);
1564 if (chip->remap_addr)
1565 iounmap(chip->remap_addr);
1566 pci_release_regions(chip->pci);
1567 pci_disable_device(chip->pci);
1572 static int snd_atiixp_dev_free(struct snd_device *device)
1574 struct atiixp *chip = device->device_data;
1575 return snd_atiixp_free(chip);
1579 * constructor for chip instance
1581 static int __devinit snd_atiixp_create(struct snd_card *card,
1582 struct pci_dev *pci,
1583 struct atiixp **r_chip)
1585 static struct snd_device_ops ops = {
1586 .dev_free = snd_atiixp_dev_free,
1588 struct atiixp *chip;
1591 if ((err = pci_enable_device(pci)) < 0)
1594 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1596 pci_disable_device(pci);
1600 spin_lock_init(&chip->reg_lock);
1601 mutex_init(&chip->open_mutex);
1605 if ((err = pci_request_regions(pci, "ATI IXP AC97")) < 0) {
1606 pci_disable_device(pci);
1610 chip->addr = pci_resource_start(pci, 0);
1611 chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci, 0));
1612 if (chip->remap_addr == NULL) {
1613 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
1614 snd_atiixp_free(chip);
1618 if (request_irq(pci->irq, snd_atiixp_interrupt, IRQF_SHARED,
1619 card->shortname, chip)) {
1620 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1621 snd_atiixp_free(chip);
1624 chip->irq = pci->irq;
1625 pci_set_master(pci);
1626 synchronize_irq(chip->irq);
1628 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1629 snd_atiixp_free(chip);
1633 snd_card_set_dev(card, &pci->dev);
1640 static int __devinit snd_atiixp_probe(struct pci_dev *pci,
1641 const struct pci_device_id *pci_id)
1643 struct snd_card *card;
1644 struct atiixp *chip;
1647 card = snd_card_new(index, id, THIS_MODULE, 0);
1651 strcpy(card->driver, spdif_aclink ? "ATIIXP" : "ATIIXP-SPDMA");
1652 strcpy(card->shortname, "ATI IXP");
1653 if ((err = snd_atiixp_create(card, pci, &chip)) < 0)
1655 card->private_data = chip;
1657 if ((err = snd_atiixp_aclink_reset(chip)) < 0)
1660 chip->spdif_over_aclink = spdif_aclink;
1662 if ((err = snd_atiixp_mixer_new(chip, ac97_clock, ac97_quirk)) < 0)
1665 if ((err = snd_atiixp_pcm_new(chip)) < 0)
1668 snd_atiixp_proc_init(chip);
1670 snd_atiixp_chip_start(chip);
1672 snprintf(card->longname, sizeof(card->longname),
1673 "%s rev %x with %s at %#lx, irq %i", card->shortname,
1675 chip->ac97[0] ? snd_ac97_get_short_name(chip->ac97[0]) : "?",
1676 chip->addr, chip->irq);
1678 if ((err = snd_card_register(card)) < 0)
1681 pci_set_drvdata(pci, card);
1685 snd_card_free(card);
1689 static void __devexit snd_atiixp_remove(struct pci_dev *pci)
1691 snd_card_free(pci_get_drvdata(pci));
1692 pci_set_drvdata(pci, NULL);
1695 static struct pci_driver driver = {
1696 .name = "ATI IXP AC97 controller",
1697 .id_table = snd_atiixp_ids,
1698 .probe = snd_atiixp_probe,
1699 .remove = __devexit_p(snd_atiixp_remove),
1701 .suspend = snd_atiixp_suspend,
1702 .resume = snd_atiixp_resume,
1707 static int __init alsa_card_atiixp_init(void)
1709 return pci_register_driver(&driver);
1712 static void __exit alsa_card_atiixp_exit(void)
1714 pci_unregister_driver(&driver);
1717 module_init(alsa_card_atiixp_init)
1718 module_exit(alsa_card_atiixp_exit)