11a59d1b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds * PMac DBDMA lowlevel functions
41da177e4SLinus Torvalds *
51da177e4SLinus Torvalds * Copyright (c) by Takashi Iwai <tiwai@suse.de>
61da177e4SLinus Torvalds * code based on dmasound.c.
71da177e4SLinus Torvalds */
81da177e4SLinus Torvalds
91da177e4SLinus Torvalds
106cbbfe1cSTakashi Iwai #include <linux/io.h>
111da177e4SLinus Torvalds #include <asm/irq.h>
121da177e4SLinus Torvalds #include <linux/init.h>
131da177e4SLinus Torvalds #include <linux/delay.h>
141da177e4SLinus Torvalds #include <linux/slab.h>
151da177e4SLinus Torvalds #include <linux/interrupt.h>
167bbd8277SBenjamin Herrenschmidt #include <linux/pci.h>
177bbd8277SBenjamin Herrenschmidt #include <linux/dma-mapping.h>
185af50730SRob Herring #include <linux/of_address.h>
195af50730SRob Herring #include <linux/of_irq.h>
201da177e4SLinus Torvalds #include <sound/core.h>
211da177e4SLinus Torvalds #include "pmac.h"
221da177e4SLinus Torvalds #include <sound/pcm_params.h>
231da177e4SLinus Torvalds #include <asm/pmac_feature.h>
241da177e4SLinus Torvalds
251da177e4SLinus Torvalds
261da177e4SLinus Torvalds /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
276e9ef32fSTakashi Iwai static const int awacs_freqs[8] = {
281da177e4SLinus Torvalds 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
291da177e4SLinus Torvalds };
301da177e4SLinus Torvalds /* fixed frequency table for tumbler */
316e9ef32fSTakashi Iwai static const int tumbler_freqs[1] = {
321da177e4SLinus Torvalds 44100
331da177e4SLinus Torvalds };
341da177e4SLinus Torvalds
35e70515ddST. H. Huth
36e70515ddST. H. Huth /*
37e70515ddST. H. Huth * we will allocate a single 'emergency' dbdma cmd block to use if the
38e70515ddST. H. Huth * tx status comes up "DEAD". This happens on some PowerComputing Pmac
39e70515ddST. H. Huth * clones, either owing to a bug in dbdma or some interaction between
40e70515ddST. H. Huth * IDE and sound. However, this measure would deal with DEAD status if
41e70515ddST. H. Huth * it appeared elsewhere.
42e70515ddST. H. Huth */
43e70515ddST. H. Huth static struct pmac_dbdma emergency_dbdma;
44e70515ddST. H. Huth static int emergency_in_use;
45e70515ddST. H. Huth
46e70515ddST. H. Huth
471da177e4SLinus Torvalds /*
481da177e4SLinus Torvalds * allocate DBDMA command arrays
491da177e4SLinus Torvalds */
snd_pmac_dbdma_alloc(struct snd_pmac * chip,struct pmac_dbdma * rec,int size)5065b29f50STakashi Iwai static int snd_pmac_dbdma_alloc(struct snd_pmac *chip, struct pmac_dbdma *rec, int size)
511da177e4SLinus Torvalds {
527bbd8277SBenjamin Herrenschmidt unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
537bbd8277SBenjamin Herrenschmidt
547bbd8277SBenjamin Herrenschmidt rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
557bbd8277SBenjamin Herrenschmidt &rec->dma_base, GFP_KERNEL);
561da177e4SLinus Torvalds if (rec->space == NULL)
571da177e4SLinus Torvalds return -ENOMEM;
581da177e4SLinus Torvalds rec->size = size;
597bbd8277SBenjamin Herrenschmidt memset(rec->space, 0, rsize);
601da177e4SLinus Torvalds rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
617bbd8277SBenjamin Herrenschmidt rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
627bbd8277SBenjamin Herrenschmidt
631da177e4SLinus Torvalds return 0;
641da177e4SLinus Torvalds }
651da177e4SLinus Torvalds
snd_pmac_dbdma_free(struct snd_pmac * chip,struct pmac_dbdma * rec)6665b29f50STakashi Iwai static void snd_pmac_dbdma_free(struct snd_pmac *chip, struct pmac_dbdma *rec)
671da177e4SLinus Torvalds {
68367636e8SBenjamin Herrenschmidt if (rec->space) {
697bbd8277SBenjamin Herrenschmidt unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
707bbd8277SBenjamin Herrenschmidt
717bbd8277SBenjamin Herrenschmidt dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
727bbd8277SBenjamin Herrenschmidt }
731da177e4SLinus Torvalds }
741da177e4SLinus Torvalds
751da177e4SLinus Torvalds
761da177e4SLinus Torvalds /*
771da177e4SLinus Torvalds * pcm stuff
781da177e4SLinus Torvalds */
791da177e4SLinus Torvalds
801da177e4SLinus Torvalds /*
811da177e4SLinus Torvalds * look up frequency table
821da177e4SLinus Torvalds */
831da177e4SLinus Torvalds
snd_pmac_rate_index(struct snd_pmac * chip,struct pmac_stream * rec,unsigned int rate)8465b29f50STakashi Iwai unsigned int snd_pmac_rate_index(struct snd_pmac *chip, struct pmac_stream *rec, unsigned int rate)
851da177e4SLinus Torvalds {
861da177e4SLinus Torvalds int i, ok, found;
871da177e4SLinus Torvalds
881da177e4SLinus Torvalds ok = rec->cur_freqs;
891da177e4SLinus Torvalds if (rate > chip->freq_table[0])
901da177e4SLinus Torvalds return 0;
911da177e4SLinus Torvalds found = 0;
921da177e4SLinus Torvalds for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
931da177e4SLinus Torvalds if (! (ok & 1)) continue;
941da177e4SLinus Torvalds found = i;
951da177e4SLinus Torvalds if (rate >= chip->freq_table[i])
961da177e4SLinus Torvalds break;
971da177e4SLinus Torvalds }
981da177e4SLinus Torvalds return found;
991da177e4SLinus Torvalds }
1001da177e4SLinus Torvalds
1011da177e4SLinus Torvalds /*
1021da177e4SLinus Torvalds * check whether another stream is active
1031da177e4SLinus Torvalds */
another_stream(int stream)1041da177e4SLinus Torvalds static inline int another_stream(int stream)
1051da177e4SLinus Torvalds {
1061da177e4SLinus Torvalds return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
1071da177e4SLinus Torvalds SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
1081da177e4SLinus Torvalds }
1091da177e4SLinus Torvalds
1101da177e4SLinus Torvalds /*
1111da177e4SLinus Torvalds * get a stream of the opposite direction
1121da177e4SLinus Torvalds */
snd_pmac_get_stream(struct snd_pmac * chip,int stream)11365b29f50STakashi Iwai static struct pmac_stream *snd_pmac_get_stream(struct snd_pmac *chip, int stream)
1141da177e4SLinus Torvalds {
1151da177e4SLinus Torvalds switch (stream) {
1161da177e4SLinus Torvalds case SNDRV_PCM_STREAM_PLAYBACK:
1171da177e4SLinus Torvalds return &chip->playback;
1181da177e4SLinus Torvalds case SNDRV_PCM_STREAM_CAPTURE:
1191da177e4SLinus Torvalds return &chip->capture;
1201da177e4SLinus Torvalds default:
1211da177e4SLinus Torvalds snd_BUG();
1221da177e4SLinus Torvalds return NULL;
1231da177e4SLinus Torvalds }
1241da177e4SLinus Torvalds }
1251da177e4SLinus Torvalds
1261da177e4SLinus Torvalds /*
1271da177e4SLinus Torvalds * wait while run status is on
1281da177e4SLinus Torvalds */
12977933d72SJesper Juhl static inline void
snd_pmac_wait_ack(struct pmac_stream * rec)13065b29f50STakashi Iwai snd_pmac_wait_ack(struct pmac_stream *rec)
1311da177e4SLinus Torvalds {
1321da177e4SLinus Torvalds int timeout = 50000;
1331da177e4SLinus Torvalds while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
1341da177e4SLinus Torvalds udelay(1);
1351da177e4SLinus Torvalds }
1361da177e4SLinus Torvalds
1371da177e4SLinus Torvalds /*
1381da177e4SLinus Torvalds * set the format and rate to the chip.
1391da177e4SLinus Torvalds * call the lowlevel function if defined (e.g. for AWACS).
1401da177e4SLinus Torvalds */
snd_pmac_pcm_set_format(struct snd_pmac * chip)14165b29f50STakashi Iwai static void snd_pmac_pcm_set_format(struct snd_pmac *chip)
1421da177e4SLinus Torvalds {
1431da177e4SLinus Torvalds /* set up frequency and format */
1441da177e4SLinus Torvalds out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
1451da177e4SLinus Torvalds out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
1461da177e4SLinus Torvalds if (chip->set_format)
1471da177e4SLinus Torvalds chip->set_format(chip);
1481da177e4SLinus Torvalds }
1491da177e4SLinus Torvalds
1501da177e4SLinus Torvalds /*
1511da177e4SLinus Torvalds * stop the DMA transfer
1521da177e4SLinus Torvalds */
snd_pmac_dma_stop(struct pmac_stream * rec)15365b29f50STakashi Iwai static inline void snd_pmac_dma_stop(struct pmac_stream *rec)
1541da177e4SLinus Torvalds {
1551da177e4SLinus Torvalds out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
1561da177e4SLinus Torvalds snd_pmac_wait_ack(rec);
1571da177e4SLinus Torvalds }
1581da177e4SLinus Torvalds
1591da177e4SLinus Torvalds /*
1601da177e4SLinus Torvalds * set the command pointer address
1611da177e4SLinus Torvalds */
snd_pmac_dma_set_command(struct pmac_stream * rec,struct pmac_dbdma * cmd)16265b29f50STakashi Iwai static inline void snd_pmac_dma_set_command(struct pmac_stream *rec, struct pmac_dbdma *cmd)
1631da177e4SLinus Torvalds {
1641da177e4SLinus Torvalds out_le32(&rec->dma->cmdptr, cmd->addr);
1651da177e4SLinus Torvalds }
1661da177e4SLinus Torvalds
1671da177e4SLinus Torvalds /*
1681da177e4SLinus Torvalds * start the DMA
1691da177e4SLinus Torvalds */
snd_pmac_dma_run(struct pmac_stream * rec,int status)17065b29f50STakashi Iwai static inline void snd_pmac_dma_run(struct pmac_stream *rec, int status)
1711da177e4SLinus Torvalds {
1721da177e4SLinus Torvalds out_le32(&rec->dma->control, status | (status << 16));
1731da177e4SLinus Torvalds }
1741da177e4SLinus Torvalds
1751da177e4SLinus Torvalds
1761da177e4SLinus Torvalds /*
1771da177e4SLinus Torvalds * prepare playback/capture stream
1781da177e4SLinus Torvalds */
snd_pmac_pcm_prepare(struct snd_pmac * chip,struct pmac_stream * rec,struct snd_pcm_substream * subs)17965b29f50STakashi Iwai static int snd_pmac_pcm_prepare(struct snd_pmac *chip, struct pmac_stream *rec, struct snd_pcm_substream *subs)
1801da177e4SLinus Torvalds {
1811da177e4SLinus Torvalds int i;
1821da177e4SLinus Torvalds volatile struct dbdma_cmd __iomem *cp;
18365b29f50STakashi Iwai struct snd_pcm_runtime *runtime = subs->runtime;
1841da177e4SLinus Torvalds int rate_index;
1851da177e4SLinus Torvalds long offset;
18665b29f50STakashi Iwai struct pmac_stream *astr;
1871da177e4SLinus Torvalds
1881da177e4SLinus Torvalds rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
1891da177e4SLinus Torvalds rec->period_size = snd_pcm_lib_period_bytes(subs);
1901da177e4SLinus Torvalds rec->nperiods = rec->dma_size / rec->period_size;
1911da177e4SLinus Torvalds rec->cur_period = 0;
1921da177e4SLinus Torvalds rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
1931da177e4SLinus Torvalds
1941da177e4SLinus Torvalds /* set up constraints */
1951da177e4SLinus Torvalds astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
1967c22f1aaSTakashi Iwai if (! astr)
1977c22f1aaSTakashi Iwai return -EINVAL;
1981da177e4SLinus Torvalds astr->cur_freqs = 1 << rate_index;
1991da177e4SLinus Torvalds astr->cur_formats = 1 << runtime->format;
2001da177e4SLinus Torvalds chip->rate_index = rate_index;
2011da177e4SLinus Torvalds chip->format = runtime->format;
2021da177e4SLinus Torvalds
2031da177e4SLinus Torvalds /* We really want to execute a DMA stop command, after the AWACS
2041da177e4SLinus Torvalds * is initialized.
2051da177e4SLinus Torvalds * For reasons I don't understand, it stops the hissing noise
2061da177e4SLinus Torvalds * common to many PowerBook G3 systems and random noise otherwise
2071da177e4SLinus Torvalds * captured on iBook2's about every third time. -ReneR
2081da177e4SLinus Torvalds */
2091da177e4SLinus Torvalds spin_lock_irq(&chip->reg_lock);
2101da177e4SLinus Torvalds snd_pmac_dma_stop(rec);
211f5718726SDavid Gibson chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
2121da177e4SLinus Torvalds snd_pmac_dma_set_command(rec, &chip->extra_dma);
2131da177e4SLinus Torvalds snd_pmac_dma_run(rec, RUN);
2141da177e4SLinus Torvalds spin_unlock_irq(&chip->reg_lock);
2151da177e4SLinus Torvalds mdelay(5);
2161da177e4SLinus Torvalds spin_lock_irq(&chip->reg_lock);
2171da177e4SLinus Torvalds /* continuous DMA memory type doesn't provide the physical address,
2181da177e4SLinus Torvalds * so we need to resolve the address here...
2191da177e4SLinus Torvalds */
2207bbd8277SBenjamin Herrenschmidt offset = runtime->dma_addr;
2211da177e4SLinus Torvalds for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
222f5718726SDavid Gibson cp->phy_addr = cpu_to_le32(offset);
223f5718726SDavid Gibson cp->req_count = cpu_to_le16(rec->period_size);
224f5718726SDavid Gibson /*cp->res_count = cpu_to_le16(0);*/
225f5718726SDavid Gibson cp->xfer_status = cpu_to_le16(0);
2261da177e4SLinus Torvalds offset += rec->period_size;
2271da177e4SLinus Torvalds }
2281da177e4SLinus Torvalds /* make loop */
22959f00717SSamuel Zou cp->command = cpu_to_le16(DBDMA_NOP | BR_ALWAYS);
230f5718726SDavid Gibson cp->cmd_dep = cpu_to_le32(rec->cmd.addr);
2311da177e4SLinus Torvalds
2321da177e4SLinus Torvalds snd_pmac_dma_stop(rec);
2331da177e4SLinus Torvalds snd_pmac_dma_set_command(rec, &rec->cmd);
2341da177e4SLinus Torvalds spin_unlock_irq(&chip->reg_lock);
2351da177e4SLinus Torvalds
2361da177e4SLinus Torvalds return 0;
2371da177e4SLinus Torvalds }
2381da177e4SLinus Torvalds
2391da177e4SLinus Torvalds
2401da177e4SLinus Torvalds /*
2411da177e4SLinus Torvalds * PCM trigger/stop
2421da177e4SLinus Torvalds */
snd_pmac_pcm_trigger(struct snd_pmac * chip,struct pmac_stream * rec,struct snd_pcm_substream * subs,int cmd)24365b29f50STakashi Iwai static int snd_pmac_pcm_trigger(struct snd_pmac *chip, struct pmac_stream *rec,
24465b29f50STakashi Iwai struct snd_pcm_substream *subs, int cmd)
2451da177e4SLinus Torvalds {
2461da177e4SLinus Torvalds volatile struct dbdma_cmd __iomem *cp;
2471da177e4SLinus Torvalds int i, command;
2481da177e4SLinus Torvalds
2491da177e4SLinus Torvalds switch (cmd) {
2501da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_START:
2511da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_RESUME:
2521da177e4SLinus Torvalds if (rec->running)
2531da177e4SLinus Torvalds return -EBUSY;
2541da177e4SLinus Torvalds command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
2551da177e4SLinus Torvalds OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
2561da177e4SLinus Torvalds spin_lock(&chip->reg_lock);
2571da177e4SLinus Torvalds snd_pmac_beep_stop(chip);
2581da177e4SLinus Torvalds snd_pmac_pcm_set_format(chip);
2591da177e4SLinus Torvalds for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
2601da177e4SLinus Torvalds out_le16(&cp->command, command);
2611da177e4SLinus Torvalds snd_pmac_dma_set_command(rec, &rec->cmd);
2621da177e4SLinus Torvalds (void)in_le32(&rec->dma->status);
2631da177e4SLinus Torvalds snd_pmac_dma_run(rec, RUN|WAKE);
2641da177e4SLinus Torvalds rec->running = 1;
2651da177e4SLinus Torvalds spin_unlock(&chip->reg_lock);
2661da177e4SLinus Torvalds break;
2671da177e4SLinus Torvalds
2681da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_STOP:
2691da177e4SLinus Torvalds case SNDRV_PCM_TRIGGER_SUSPEND:
2701da177e4SLinus Torvalds spin_lock(&chip->reg_lock);
2711da177e4SLinus Torvalds rec->running = 0;
2726da67113STakashi Iwai /*printk(KERN_DEBUG "stopped!!\n");*/
2731da177e4SLinus Torvalds snd_pmac_dma_stop(rec);
2741da177e4SLinus Torvalds for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
2751da177e4SLinus Torvalds out_le16(&cp->command, DBDMA_STOP);
2761da177e4SLinus Torvalds spin_unlock(&chip->reg_lock);
2771da177e4SLinus Torvalds break;
2781da177e4SLinus Torvalds
2791da177e4SLinus Torvalds default:
2801da177e4SLinus Torvalds return -EINVAL;
2811da177e4SLinus Torvalds }
2821da177e4SLinus Torvalds
2831da177e4SLinus Torvalds return 0;
2841da177e4SLinus Torvalds }
2851da177e4SLinus Torvalds
2861da177e4SLinus Torvalds /*
2871da177e4SLinus Torvalds * return the current pointer
2881da177e4SLinus Torvalds */
2891da177e4SLinus Torvalds inline
snd_pmac_pcm_pointer(struct snd_pmac * chip,struct pmac_stream * rec,struct snd_pcm_substream * subs)29065b29f50STakashi Iwai static snd_pcm_uframes_t snd_pmac_pcm_pointer(struct snd_pmac *chip,
29165b29f50STakashi Iwai struct pmac_stream *rec,
29265b29f50STakashi Iwai struct snd_pcm_substream *subs)
2931da177e4SLinus Torvalds {
2941da177e4SLinus Torvalds int count = 0;
2951da177e4SLinus Torvalds
2961da177e4SLinus Torvalds #if 1 /* hmm.. how can we get the current dma pointer?? */
2971da177e4SLinus Torvalds int stat;
2981da177e4SLinus Torvalds volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
299f5718726SDavid Gibson stat = le16_to_cpu(cp->xfer_status);
3001da177e4SLinus Torvalds if (stat & (ACTIVE|DEAD)) {
3011da177e4SLinus Torvalds count = in_le16(&cp->res_count);
3021da177e4SLinus Torvalds if (count)
3031da177e4SLinus Torvalds count = rec->period_size - count;
3041da177e4SLinus Torvalds }
3051da177e4SLinus Torvalds #endif
3061da177e4SLinus Torvalds count += rec->cur_period * rec->period_size;
3076da67113STakashi Iwai /*printk(KERN_DEBUG "pointer=%d\n", count);*/
3081da177e4SLinus Torvalds return bytes_to_frames(subs->runtime, count);
3091da177e4SLinus Torvalds }
3101da177e4SLinus Torvalds
3111da177e4SLinus Torvalds /*
3121da177e4SLinus Torvalds * playback
3131da177e4SLinus Torvalds */
3141da177e4SLinus Torvalds
snd_pmac_playback_prepare(struct snd_pcm_substream * subs)31565b29f50STakashi Iwai static int snd_pmac_playback_prepare(struct snd_pcm_substream *subs)
3161da177e4SLinus Torvalds {
31765b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3181da177e4SLinus Torvalds return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
3191da177e4SLinus Torvalds }
3201da177e4SLinus Torvalds
snd_pmac_playback_trigger(struct snd_pcm_substream * subs,int cmd)32165b29f50STakashi Iwai static int snd_pmac_playback_trigger(struct snd_pcm_substream *subs,
3221da177e4SLinus Torvalds int cmd)
3231da177e4SLinus Torvalds {
32465b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3251da177e4SLinus Torvalds return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
3261da177e4SLinus Torvalds }
3271da177e4SLinus Torvalds
snd_pmac_playback_pointer(struct snd_pcm_substream * subs)32865b29f50STakashi Iwai static snd_pcm_uframes_t snd_pmac_playback_pointer(struct snd_pcm_substream *subs)
3291da177e4SLinus Torvalds {
33065b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3311da177e4SLinus Torvalds return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
3321da177e4SLinus Torvalds }
3331da177e4SLinus Torvalds
3341da177e4SLinus Torvalds
3351da177e4SLinus Torvalds /*
3361da177e4SLinus Torvalds * capture
3371da177e4SLinus Torvalds */
3381da177e4SLinus Torvalds
snd_pmac_capture_prepare(struct snd_pcm_substream * subs)33965b29f50STakashi Iwai static int snd_pmac_capture_prepare(struct snd_pcm_substream *subs)
3401da177e4SLinus Torvalds {
34165b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3421da177e4SLinus Torvalds return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
3431da177e4SLinus Torvalds }
3441da177e4SLinus Torvalds
snd_pmac_capture_trigger(struct snd_pcm_substream * subs,int cmd)34565b29f50STakashi Iwai static int snd_pmac_capture_trigger(struct snd_pcm_substream *subs,
3461da177e4SLinus Torvalds int cmd)
3471da177e4SLinus Torvalds {
34865b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3491da177e4SLinus Torvalds return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
3501da177e4SLinus Torvalds }
3511da177e4SLinus Torvalds
snd_pmac_capture_pointer(struct snd_pcm_substream * subs)35265b29f50STakashi Iwai static snd_pcm_uframes_t snd_pmac_capture_pointer(struct snd_pcm_substream *subs)
3531da177e4SLinus Torvalds {
35465b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
3551da177e4SLinus Torvalds return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
3561da177e4SLinus Torvalds }
3571da177e4SLinus Torvalds
3581da177e4SLinus Torvalds
3591da177e4SLinus Torvalds /*
360e70515ddST. H. Huth * Handle DEAD DMA transfers:
361e70515ddST. H. Huth * if the TX status comes up "DEAD" - reported on some Power Computing machines
362e70515ddST. H. Huth * we need to re-start the dbdma - but from a different physical start address
363e70515ddST. H. Huth * and with a different transfer length. It would get very messy to do this
364e70515ddST. H. Huth * with the normal dbdma_cmd blocks - we would have to re-write the buffer start
365e70515ddST. H. Huth * addresses each time. So, we will keep a single dbdma_cmd block which can be
366e70515ddST. H. Huth * fiddled with.
367e70515ddST. H. Huth * When DEAD status is first reported the content of the faulted dbdma block is
368e70515ddST. H. Huth * copied into the emergency buffer and we note that the buffer is in use.
369e70515ddST. H. Huth * we then bump the start physical address by the amount that was successfully
370e70515ddST. H. Huth * output before it died.
371e70515ddST. H. Huth * On any subsequent DEAD result we just do the bump-ups (we know that we are
372e70515ddST. H. Huth * already using the emergency dbdma_cmd).
373e70515ddST. H. Huth * CHECK: this just tries to "do it". It is possible that we should abandon
374e70515ddST. H. Huth * xfers when the number of residual bytes gets below a certain value - I can
375e70515ddST. H. Huth * see that this might cause a loop-forever if a too small transfer causes
376e70515ddST. H. Huth * DEAD status. However this is a TODO for now - we'll see what gets reported.
377e70515ddST. H. Huth * When we get a successful transfer result with the emergency buffer we just
378e70515ddST. H. Huth * pretend that it completed using the original dmdma_cmd and carry on. The
379e70515ddST. H. Huth * 'next_cmd' field will already point back to the original loop of blocks.
380e70515ddST. H. Huth */
snd_pmac_pcm_dead_xfer(struct pmac_stream * rec,volatile struct dbdma_cmd __iomem * cp)381e70515ddST. H. Huth static inline void snd_pmac_pcm_dead_xfer(struct pmac_stream *rec,
382e70515ddST. H. Huth volatile struct dbdma_cmd __iomem *cp)
383e70515ddST. H. Huth {
384e70515ddST. H. Huth unsigned short req, res ;
385e70515ddST. H. Huth unsigned int phy ;
386e70515ddST. H. Huth
387e70515ddST. H. Huth /* printk(KERN_WARNING "snd-powermac: DMA died - patching it up!\n"); */
388e70515ddST. H. Huth
389e70515ddST. H. Huth /* to clear DEAD status we must first clear RUN
390e70515ddST. H. Huth set it to quiescent to be on the safe side */
391e70515ddST. H. Huth (void)in_le32(&rec->dma->status);
392e70515ddST. H. Huth out_le32(&rec->dma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
393e70515ddST. H. Huth
394e70515ddST. H. Huth if (!emergency_in_use) { /* new problem */
395e70515ddST. H. Huth memcpy((void *)emergency_dbdma.cmds, (void *)cp,
396e70515ddST. H. Huth sizeof(struct dbdma_cmd));
397e70515ddST. H. Huth emergency_in_use = 1;
398f5718726SDavid Gibson cp->xfer_status = cpu_to_le16(0);
399f5718726SDavid Gibson cp->req_count = cpu_to_le16(rec->period_size);
400e70515ddST. H. Huth cp = emergency_dbdma.cmds;
401e70515ddST. H. Huth }
402e70515ddST. H. Huth
403e70515ddST. H. Huth /* now bump the values to reflect the amount
404e70515ddST. H. Huth we haven't yet shifted */
405f5718726SDavid Gibson req = le16_to_cpu(cp->req_count);
406f5718726SDavid Gibson res = le16_to_cpu(cp->res_count);
407f5718726SDavid Gibson phy = le32_to_cpu(cp->phy_addr);
408e70515ddST. H. Huth phy += (req - res);
409f5718726SDavid Gibson cp->req_count = cpu_to_le16(res);
410f5718726SDavid Gibson cp->res_count = cpu_to_le16(0);
411f5718726SDavid Gibson cp->xfer_status = cpu_to_le16(0);
412f5718726SDavid Gibson cp->phy_addr = cpu_to_le32(phy);
413e70515ddST. H. Huth
414f5718726SDavid Gibson cp->cmd_dep = cpu_to_le32(rec->cmd.addr
415e70515ddST. H. Huth + sizeof(struct dbdma_cmd)*((rec->cur_period+1)%rec->nperiods));
416e70515ddST. H. Huth
417f5718726SDavid Gibson cp->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS | INTR_ALWAYS);
418e70515ddST. H. Huth
419e70515ddST. H. Huth /* point at our patched up command block */
420e70515ddST. H. Huth out_le32(&rec->dma->cmdptr, emergency_dbdma.addr);
421e70515ddST. H. Huth
422e70515ddST. H. Huth /* we must re-start the controller */
423e70515ddST. H. Huth (void)in_le32(&rec->dma->status);
424e70515ddST. H. Huth /* should complete clearing the DEAD status */
425e70515ddST. H. Huth out_le32(&rec->dma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
426e70515ddST. H. Huth }
427e70515ddST. H. Huth
428e70515ddST. H. Huth /*
4291da177e4SLinus Torvalds * update playback/capture pointer from interrupts
4301da177e4SLinus Torvalds */
snd_pmac_pcm_update(struct snd_pmac * chip,struct pmac_stream * rec)43165b29f50STakashi Iwai static void snd_pmac_pcm_update(struct snd_pmac *chip, struct pmac_stream *rec)
4321da177e4SLinus Torvalds {
4331da177e4SLinus Torvalds volatile struct dbdma_cmd __iomem *cp;
4341da177e4SLinus Torvalds int c;
4351da177e4SLinus Torvalds int stat;
4361da177e4SLinus Torvalds
4371da177e4SLinus Torvalds spin_lock(&chip->reg_lock);
4381da177e4SLinus Torvalds if (rec->running) {
4391da177e4SLinus Torvalds for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
440e70515ddST. H. Huth
441e70515ddST. H. Huth if (emergency_in_use) /* already using DEAD xfer? */
442e70515ddST. H. Huth cp = emergency_dbdma.cmds;
443e70515ddST. H. Huth else
444e70515ddST. H. Huth cp = &rec->cmd.cmds[rec->cur_period];
445e70515ddST. H. Huth
446f5718726SDavid Gibson stat = le16_to_cpu(cp->xfer_status);
447e70515ddST. H. Huth
448e70515ddST. H. Huth if (stat & DEAD) {
449e70515ddST. H. Huth snd_pmac_pcm_dead_xfer(rec, cp);
450e70515ddST. H. Huth break; /* this block is still going */
451e70515ddST. H. Huth }
452e70515ddST. H. Huth
453e70515ddST. H. Huth if (emergency_in_use)
454e70515ddST. H. Huth emergency_in_use = 0 ; /* done that */
455e70515ddST. H. Huth
4561da177e4SLinus Torvalds if (! (stat & ACTIVE))
4571da177e4SLinus Torvalds break;
458e70515ddST. H. Huth
4596da67113STakashi Iwai /*printk(KERN_DEBUG "update frag %d\n", rec->cur_period);*/
460f5718726SDavid Gibson cp->xfer_status = cpu_to_le16(0);
461f5718726SDavid Gibson cp->req_count = cpu_to_le16(rec->period_size);
462f5718726SDavid Gibson /*cp->res_count = cpu_to_le16(0);*/
4631da177e4SLinus Torvalds rec->cur_period++;
4641da177e4SLinus Torvalds if (rec->cur_period >= rec->nperiods) {
4651da177e4SLinus Torvalds rec->cur_period = 0;
466e70515ddST. H. Huth }
467e70515ddST. H. Huth
4681da177e4SLinus Torvalds spin_unlock(&chip->reg_lock);
4691da177e4SLinus Torvalds snd_pcm_period_elapsed(rec->substream);
4701da177e4SLinus Torvalds spin_lock(&chip->reg_lock);
4711da177e4SLinus Torvalds }
4721da177e4SLinus Torvalds }
4731da177e4SLinus Torvalds spin_unlock(&chip->reg_lock);
4741da177e4SLinus Torvalds }
4751da177e4SLinus Torvalds
4761da177e4SLinus Torvalds
4771da177e4SLinus Torvalds /*
4781da177e4SLinus Torvalds * hw info
4791da177e4SLinus Torvalds */
4801da177e4SLinus Torvalds
48121bf6cf5SBhumika Goyal static const struct snd_pcm_hardware snd_pmac_playback =
4821da177e4SLinus Torvalds {
4831da177e4SLinus Torvalds .info = (SNDRV_PCM_INFO_INTERLEAVED |
4841da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP |
4851da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP_VALID |
4861da177e4SLinus Torvalds SNDRV_PCM_INFO_RESUME),
4871da177e4SLinus Torvalds .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
4881da177e4SLinus Torvalds .rates = SNDRV_PCM_RATE_8000_44100,
4891da177e4SLinus Torvalds .rate_min = 7350,
4901da177e4SLinus Torvalds .rate_max = 44100,
4911da177e4SLinus Torvalds .channels_min = 2,
4921da177e4SLinus Torvalds .channels_max = 2,
4931da177e4SLinus Torvalds .buffer_bytes_max = 131072,
4941da177e4SLinus Torvalds .period_bytes_min = 256,
4951da177e4SLinus Torvalds .period_bytes_max = 16384,
4961da177e4SLinus Torvalds .periods_min = 3,
4971da177e4SLinus Torvalds .periods_max = PMAC_MAX_FRAGS,
4981da177e4SLinus Torvalds };
4991da177e4SLinus Torvalds
50021bf6cf5SBhumika Goyal static const struct snd_pcm_hardware snd_pmac_capture =
5011da177e4SLinus Torvalds {
5021da177e4SLinus Torvalds .info = (SNDRV_PCM_INFO_INTERLEAVED |
5031da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP |
5041da177e4SLinus Torvalds SNDRV_PCM_INFO_MMAP_VALID |
5051da177e4SLinus Torvalds SNDRV_PCM_INFO_RESUME),
5061da177e4SLinus Torvalds .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
5071da177e4SLinus Torvalds .rates = SNDRV_PCM_RATE_8000_44100,
5081da177e4SLinus Torvalds .rate_min = 7350,
5091da177e4SLinus Torvalds .rate_max = 44100,
5101da177e4SLinus Torvalds .channels_min = 2,
5111da177e4SLinus Torvalds .channels_max = 2,
5121da177e4SLinus Torvalds .buffer_bytes_max = 131072,
5131da177e4SLinus Torvalds .period_bytes_min = 256,
5141da177e4SLinus Torvalds .period_bytes_max = 16384,
5151da177e4SLinus Torvalds .periods_min = 3,
5161da177e4SLinus Torvalds .periods_max = PMAC_MAX_FRAGS,
5171da177e4SLinus Torvalds };
5181da177e4SLinus Torvalds
5191da177e4SLinus Torvalds
5201da177e4SLinus Torvalds #if 0 // NYI
52165b29f50STakashi Iwai static int snd_pmac_hw_rule_rate(struct snd_pcm_hw_params *params,
52265b29f50STakashi Iwai struct snd_pcm_hw_rule *rule)
5231da177e4SLinus Torvalds {
52465b29f50STakashi Iwai struct snd_pmac *chip = rule->private;
52565b29f50STakashi Iwai struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
5261da177e4SLinus Torvalds int i, freq_table[8], num_freqs;
5271da177e4SLinus Torvalds
5287c22f1aaSTakashi Iwai if (! rec)
5297c22f1aaSTakashi Iwai return -EINVAL;
5301da177e4SLinus Torvalds num_freqs = 0;
5311da177e4SLinus Torvalds for (i = chip->num_freqs - 1; i >= 0; i--) {
5321da177e4SLinus Torvalds if (rec->cur_freqs & (1 << i))
5331da177e4SLinus Torvalds freq_table[num_freqs++] = chip->freq_table[i];
5341da177e4SLinus Torvalds }
5351da177e4SLinus Torvalds
5361da177e4SLinus Torvalds return snd_interval_list(hw_param_interval(params, rule->var),
5371da177e4SLinus Torvalds num_freqs, freq_table, 0);
5381da177e4SLinus Torvalds }
5391da177e4SLinus Torvalds
54065b29f50STakashi Iwai static int snd_pmac_hw_rule_format(struct snd_pcm_hw_params *params,
54165b29f50STakashi Iwai struct snd_pcm_hw_rule *rule)
5421da177e4SLinus Torvalds {
54365b29f50STakashi Iwai struct snd_pmac *chip = rule->private;
54465b29f50STakashi Iwai struct pmac_stream *rec = snd_pmac_get_stream(chip, rule->deps[0]);
5451da177e4SLinus Torvalds
5467c22f1aaSTakashi Iwai if (! rec)
5477c22f1aaSTakashi Iwai return -EINVAL;
5481da177e4SLinus Torvalds return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
5491da177e4SLinus Torvalds rec->cur_formats);
5501da177e4SLinus Torvalds }
5511da177e4SLinus Torvalds #endif // NYI
5521da177e4SLinus Torvalds
snd_pmac_pcm_open(struct snd_pmac * chip,struct pmac_stream * rec,struct snd_pcm_substream * subs)55365b29f50STakashi Iwai static int snd_pmac_pcm_open(struct snd_pmac *chip, struct pmac_stream *rec,
55465b29f50STakashi Iwai struct snd_pcm_substream *subs)
5551da177e4SLinus Torvalds {
55665b29f50STakashi Iwai struct snd_pcm_runtime *runtime = subs->runtime;
557918f3a0eSClemens Ladisch int i;
5581da177e4SLinus Torvalds
5591da177e4SLinus Torvalds /* look up frequency table and fill bit mask */
5601da177e4SLinus Torvalds runtime->hw.rates = 0;
561918f3a0eSClemens Ladisch for (i = 0; i < chip->num_freqs; i++)
562918f3a0eSClemens Ladisch if (chip->freqs_ok & (1 << i))
563918f3a0eSClemens Ladisch runtime->hw.rates |=
564918f3a0eSClemens Ladisch snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
5651da177e4SLinus Torvalds
5661da177e4SLinus Torvalds /* check for minimum and maximum rates */
5671da177e4SLinus Torvalds for (i = 0; i < chip->num_freqs; i++) {
5681da177e4SLinus Torvalds if (chip->freqs_ok & (1 << i)) {
5691da177e4SLinus Torvalds runtime->hw.rate_max = chip->freq_table[i];
5701da177e4SLinus Torvalds break;
5711da177e4SLinus Torvalds }
5721da177e4SLinus Torvalds }
5731da177e4SLinus Torvalds for (i = chip->num_freqs - 1; i >= 0; i--) {
5741da177e4SLinus Torvalds if (chip->freqs_ok & (1 << i)) {
5751da177e4SLinus Torvalds runtime->hw.rate_min = chip->freq_table[i];
5761da177e4SLinus Torvalds break;
5771da177e4SLinus Torvalds }
5781da177e4SLinus Torvalds }
5791da177e4SLinus Torvalds runtime->hw.formats = chip->formats_ok;
5801da177e4SLinus Torvalds if (chip->can_capture) {
5811da177e4SLinus Torvalds if (! chip->can_duplex)
5821da177e4SLinus Torvalds runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
5831da177e4SLinus Torvalds runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
5841da177e4SLinus Torvalds }
5851da177e4SLinus Torvalds runtime->private_data = rec;
5861da177e4SLinus Torvalds rec->substream = subs;
5871da177e4SLinus Torvalds
5881da177e4SLinus Torvalds #if 0 /* FIXME: still under development.. */
5891da177e4SLinus Torvalds snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
5901da177e4SLinus Torvalds snd_pmac_hw_rule_rate, chip, rec->stream, -1);
5911da177e4SLinus Torvalds snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
5921da177e4SLinus Torvalds snd_pmac_hw_rule_format, chip, rec->stream, -1);
5931da177e4SLinus Torvalds #endif
5941da177e4SLinus Torvalds
5951da177e4SLinus Torvalds runtime->hw.periods_max = rec->cmd.size - 1;
5961da177e4SLinus Torvalds
5971da177e4SLinus Torvalds /* constraints to fix choppy sound */
5981da177e4SLinus Torvalds snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
5991da177e4SLinus Torvalds return 0;
6001da177e4SLinus Torvalds }
6011da177e4SLinus Torvalds
snd_pmac_pcm_close(struct snd_pmac * chip,struct pmac_stream * rec,struct snd_pcm_substream * subs)60265b29f50STakashi Iwai static int snd_pmac_pcm_close(struct snd_pmac *chip, struct pmac_stream *rec,
60365b29f50STakashi Iwai struct snd_pcm_substream *subs)
6041da177e4SLinus Torvalds {
60565b29f50STakashi Iwai struct pmac_stream *astr;
6061da177e4SLinus Torvalds
6071da177e4SLinus Torvalds snd_pmac_dma_stop(rec);
6081da177e4SLinus Torvalds
6091da177e4SLinus Torvalds astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
6107c22f1aaSTakashi Iwai if (! astr)
6117c22f1aaSTakashi Iwai return -EINVAL;
6121da177e4SLinus Torvalds
6131da177e4SLinus Torvalds /* reset constraints */
6141da177e4SLinus Torvalds astr->cur_freqs = chip->freqs_ok;
6151da177e4SLinus Torvalds astr->cur_formats = chip->formats_ok;
6161da177e4SLinus Torvalds
6171da177e4SLinus Torvalds return 0;
6181da177e4SLinus Torvalds }
6191da177e4SLinus Torvalds
snd_pmac_playback_open(struct snd_pcm_substream * subs)62065b29f50STakashi Iwai static int snd_pmac_playback_open(struct snd_pcm_substream *subs)
6211da177e4SLinus Torvalds {
62265b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
6231da177e4SLinus Torvalds
6241da177e4SLinus Torvalds subs->runtime->hw = snd_pmac_playback;
6251da177e4SLinus Torvalds return snd_pmac_pcm_open(chip, &chip->playback, subs);
6261da177e4SLinus Torvalds }
6271da177e4SLinus Torvalds
snd_pmac_capture_open(struct snd_pcm_substream * subs)62865b29f50STakashi Iwai static int snd_pmac_capture_open(struct snd_pcm_substream *subs)
6291da177e4SLinus Torvalds {
63065b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
6311da177e4SLinus Torvalds
6321da177e4SLinus Torvalds subs->runtime->hw = snd_pmac_capture;
6331da177e4SLinus Torvalds return snd_pmac_pcm_open(chip, &chip->capture, subs);
6341da177e4SLinus Torvalds }
6351da177e4SLinus Torvalds
snd_pmac_playback_close(struct snd_pcm_substream * subs)63665b29f50STakashi Iwai static int snd_pmac_playback_close(struct snd_pcm_substream *subs)
6371da177e4SLinus Torvalds {
63865b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
6391da177e4SLinus Torvalds
6401da177e4SLinus Torvalds return snd_pmac_pcm_close(chip, &chip->playback, subs);
6411da177e4SLinus Torvalds }
6421da177e4SLinus Torvalds
snd_pmac_capture_close(struct snd_pcm_substream * subs)64365b29f50STakashi Iwai static int snd_pmac_capture_close(struct snd_pcm_substream *subs)
6441da177e4SLinus Torvalds {
64565b29f50STakashi Iwai struct snd_pmac *chip = snd_pcm_substream_chip(subs);
6461da177e4SLinus Torvalds
6471da177e4SLinus Torvalds return snd_pmac_pcm_close(chip, &chip->capture, subs);
6481da177e4SLinus Torvalds }
6491da177e4SLinus Torvalds
6501da177e4SLinus Torvalds /*
6511da177e4SLinus Torvalds */
6521da177e4SLinus Torvalds
6533179a3eaSArvind Yadav static const struct snd_pcm_ops snd_pmac_playback_ops = {
6541da177e4SLinus Torvalds .open = snd_pmac_playback_open,
6551da177e4SLinus Torvalds .close = snd_pmac_playback_close,
6561da177e4SLinus Torvalds .prepare = snd_pmac_playback_prepare,
6571da177e4SLinus Torvalds .trigger = snd_pmac_playback_trigger,
6581da177e4SLinus Torvalds .pointer = snd_pmac_playback_pointer,
6591da177e4SLinus Torvalds };
6601da177e4SLinus Torvalds
6613179a3eaSArvind Yadav static const struct snd_pcm_ops snd_pmac_capture_ops = {
6621da177e4SLinus Torvalds .open = snd_pmac_capture_open,
6631da177e4SLinus Torvalds .close = snd_pmac_capture_close,
6641da177e4SLinus Torvalds .prepare = snd_pmac_capture_prepare,
6651da177e4SLinus Torvalds .trigger = snd_pmac_capture_trigger,
6661da177e4SLinus Torvalds .pointer = snd_pmac_capture_pointer,
6671da177e4SLinus Torvalds };
6681da177e4SLinus Torvalds
snd_pmac_pcm_new(struct snd_pmac * chip)66915afafc2SBill Pemberton int snd_pmac_pcm_new(struct snd_pmac *chip)
6701da177e4SLinus Torvalds {
67165b29f50STakashi Iwai struct snd_pcm *pcm;
6721da177e4SLinus Torvalds int err;
6731da177e4SLinus Torvalds int num_captures = 1;
6741da177e4SLinus Torvalds
6751da177e4SLinus Torvalds if (! chip->can_capture)
6761da177e4SLinus Torvalds num_captures = 0;
6771da177e4SLinus Torvalds err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
6781da177e4SLinus Torvalds if (err < 0)
6791da177e4SLinus Torvalds return err;
6801da177e4SLinus Torvalds
6811da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
6821da177e4SLinus Torvalds if (chip->can_capture)
6831da177e4SLinus Torvalds snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
6841da177e4SLinus Torvalds
6851da177e4SLinus Torvalds pcm->private_data = chip;
6861da177e4SLinus Torvalds pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
6871da177e4SLinus Torvalds strcpy(pcm->name, chip->card->shortname);
6881da177e4SLinus Torvalds chip->pcm = pcm;
6891da177e4SLinus Torvalds
6901da177e4SLinus Torvalds chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
6911da177e4SLinus Torvalds if (chip->can_byte_swap)
6921da177e4SLinus Torvalds chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
6931da177e4SLinus Torvalds
6941da177e4SLinus Torvalds chip->playback.cur_formats = chip->formats_ok;
6951da177e4SLinus Torvalds chip->capture.cur_formats = chip->formats_ok;
6961da177e4SLinus Torvalds chip->playback.cur_freqs = chip->freqs_ok;
6971da177e4SLinus Torvalds chip->capture.cur_freqs = chip->freqs_ok;
6981da177e4SLinus Torvalds
6991da177e4SLinus Torvalds /* preallocate 64k buffer */
70001001fa1STakashi Iwai snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
7017bbd8277SBenjamin Herrenschmidt &chip->pdev->dev,
7021da177e4SLinus Torvalds 64 * 1024, 64 * 1024);
7031da177e4SLinus Torvalds
7041da177e4SLinus Torvalds return 0;
7051da177e4SLinus Torvalds }
7061da177e4SLinus Torvalds
7071da177e4SLinus Torvalds
snd_pmac_dbdma_reset(struct snd_pmac * chip)70865b29f50STakashi Iwai static void snd_pmac_dbdma_reset(struct snd_pmac *chip)
7091da177e4SLinus Torvalds {
7101da177e4SLinus Torvalds out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
7111da177e4SLinus Torvalds snd_pmac_wait_ack(&chip->playback);
7121da177e4SLinus Torvalds out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
7131da177e4SLinus Torvalds snd_pmac_wait_ack(&chip->capture);
7141da177e4SLinus Torvalds }
7151da177e4SLinus Torvalds
7161da177e4SLinus Torvalds
7171da177e4SLinus Torvalds /*
7181da177e4SLinus Torvalds * handling beep
7191da177e4SLinus Torvalds */
snd_pmac_beep_dma_start(struct snd_pmac * chip,int bytes,unsigned long addr,int speed)72065b29f50STakashi Iwai void snd_pmac_beep_dma_start(struct snd_pmac *chip, int bytes, unsigned long addr, int speed)
7211da177e4SLinus Torvalds {
72265b29f50STakashi Iwai struct pmac_stream *rec = &chip->playback;
7231da177e4SLinus Torvalds
7241da177e4SLinus Torvalds snd_pmac_dma_stop(rec);
725f5718726SDavid Gibson chip->extra_dma.cmds->req_count = cpu_to_le16(bytes);
726f5718726SDavid Gibson chip->extra_dma.cmds->xfer_status = cpu_to_le16(0);
727f5718726SDavid Gibson chip->extra_dma.cmds->cmd_dep = cpu_to_le32(chip->extra_dma.addr);
728f5718726SDavid Gibson chip->extra_dma.cmds->phy_addr = cpu_to_le32(addr);
72959f00717SSamuel Zou chip->extra_dma.cmds->command = cpu_to_le16(OUTPUT_MORE | BR_ALWAYS);
7301da177e4SLinus Torvalds out_le32(&chip->awacs->control,
7311da177e4SLinus Torvalds (in_le32(&chip->awacs->control) & ~0x1f00)
7321da177e4SLinus Torvalds | (speed << 8));
7331da177e4SLinus Torvalds out_le32(&chip->awacs->byteswap, 0);
7341da177e4SLinus Torvalds snd_pmac_dma_set_command(rec, &chip->extra_dma);
7351da177e4SLinus Torvalds snd_pmac_dma_run(rec, RUN);
7361da177e4SLinus Torvalds }
7371da177e4SLinus Torvalds
snd_pmac_beep_dma_stop(struct snd_pmac * chip)73865b29f50STakashi Iwai void snd_pmac_beep_dma_stop(struct snd_pmac *chip)
7391da177e4SLinus Torvalds {
7401da177e4SLinus Torvalds snd_pmac_dma_stop(&chip->playback);
741f5718726SDavid Gibson chip->extra_dma.cmds->command = cpu_to_le16(DBDMA_STOP);
7421da177e4SLinus Torvalds snd_pmac_pcm_set_format(chip); /* reset format */
7431da177e4SLinus Torvalds }
7441da177e4SLinus Torvalds
7451da177e4SLinus Torvalds
7461da177e4SLinus Torvalds /*
7471da177e4SLinus Torvalds * interrupt handlers
7481da177e4SLinus Torvalds */
7491da177e4SLinus Torvalds static irqreturn_t
snd_pmac_tx_intr(int irq,void * devid)7507d12e780SDavid Howells snd_pmac_tx_intr(int irq, void *devid)
7511da177e4SLinus Torvalds {
75265b29f50STakashi Iwai struct snd_pmac *chip = devid;
7531da177e4SLinus Torvalds snd_pmac_pcm_update(chip, &chip->playback);
7541da177e4SLinus Torvalds return IRQ_HANDLED;
7551da177e4SLinus Torvalds }
7561da177e4SLinus Torvalds
7571da177e4SLinus Torvalds
7581da177e4SLinus Torvalds static irqreturn_t
snd_pmac_rx_intr(int irq,void * devid)7597d12e780SDavid Howells snd_pmac_rx_intr(int irq, void *devid)
7601da177e4SLinus Torvalds {
76165b29f50STakashi Iwai struct snd_pmac *chip = devid;
7621da177e4SLinus Torvalds snd_pmac_pcm_update(chip, &chip->capture);
7631da177e4SLinus Torvalds return IRQ_HANDLED;
7641da177e4SLinus Torvalds }
7651da177e4SLinus Torvalds
7661da177e4SLinus Torvalds
7671da177e4SLinus Torvalds static irqreturn_t
snd_pmac_ctrl_intr(int irq,void * devid)7687d12e780SDavid Howells snd_pmac_ctrl_intr(int irq, void *devid)
7691da177e4SLinus Torvalds {
77065b29f50STakashi Iwai struct snd_pmac *chip = devid;
7711da177e4SLinus Torvalds int ctrl = in_le32(&chip->awacs->control);
7721da177e4SLinus Torvalds
7736da67113STakashi Iwai /*printk(KERN_DEBUG "pmac: control interrupt.. 0x%x\n", ctrl);*/
7741da177e4SLinus Torvalds if (ctrl & MASK_PORTCHG) {
7751da177e4SLinus Torvalds /* do something when headphone is plugged/unplugged? */
7761da177e4SLinus Torvalds if (chip->update_automute)
7771da177e4SLinus Torvalds chip->update_automute(chip, 1);
7781da177e4SLinus Torvalds }
7791da177e4SLinus Torvalds if (ctrl & MASK_CNTLERR) {
7801da177e4SLinus Torvalds int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
7811da177e4SLinus Torvalds if (err && chip->model <= PMAC_SCREAMER)
7821da177e4SLinus Torvalds snd_printk(KERN_DEBUG "error %x\n", err);
7831da177e4SLinus Torvalds }
7841da177e4SLinus Torvalds /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
7851da177e4SLinus Torvalds out_le32(&chip->awacs->control, ctrl);
7861da177e4SLinus Torvalds return IRQ_HANDLED;
7871da177e4SLinus Torvalds }
7881da177e4SLinus Torvalds
7891da177e4SLinus Torvalds
7901da177e4SLinus Torvalds /*
7911da177e4SLinus Torvalds * a wrapper to feature call for compatibility
7921da177e4SLinus Torvalds */
snd_pmac_sound_feature(struct snd_pmac * chip,int enable)79365b29f50STakashi Iwai static void snd_pmac_sound_feature(struct snd_pmac *chip, int enable)
7941da177e4SLinus Torvalds {
7954e6a06eeSDavid Woodhouse if (ppc_md.feature_call)
7961da177e4SLinus Torvalds ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
7971da177e4SLinus Torvalds }
7981da177e4SLinus Torvalds
7991da177e4SLinus Torvalds /*
8001da177e4SLinus Torvalds * release resources
8011da177e4SLinus Torvalds */
8021da177e4SLinus Torvalds
snd_pmac_free(struct snd_pmac * chip)80365b29f50STakashi Iwai static int snd_pmac_free(struct snd_pmac *chip)
8041da177e4SLinus Torvalds {
8051da177e4SLinus Torvalds /* stop sounds */
8061da177e4SLinus Torvalds if (chip->initialized) {
8071da177e4SLinus Torvalds snd_pmac_dbdma_reset(chip);
8081da177e4SLinus Torvalds /* disable interrupts from awacs interface */
8091da177e4SLinus Torvalds out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
8101da177e4SLinus Torvalds }
8111da177e4SLinus Torvalds
81241e904deSBenjamin Herrenschmidt if (chip->node)
8131da177e4SLinus Torvalds snd_pmac_sound_feature(chip, 0);
8141da177e4SLinus Torvalds
8151da177e4SLinus Torvalds /* clean up mixer if any */
8161da177e4SLinus Torvalds if (chip->mixer_free)
8171da177e4SLinus Torvalds chip->mixer_free(chip);
8181da177e4SLinus Torvalds
8191da177e4SLinus Torvalds snd_pmac_detach_beep(chip);
8201da177e4SLinus Torvalds
8211da177e4SLinus Torvalds /* release resources */
8221da177e4SLinus Torvalds if (chip->irq >= 0)
8231da177e4SLinus Torvalds free_irq(chip->irq, (void*)chip);
8241da177e4SLinus Torvalds if (chip->tx_irq >= 0)
8251da177e4SLinus Torvalds free_irq(chip->tx_irq, (void*)chip);
8261da177e4SLinus Torvalds if (chip->rx_irq >= 0)
8271da177e4SLinus Torvalds free_irq(chip->rx_irq, (void*)chip);
8287bbd8277SBenjamin Herrenschmidt snd_pmac_dbdma_free(chip, &chip->playback.cmd);
8297bbd8277SBenjamin Herrenschmidt snd_pmac_dbdma_free(chip, &chip->capture.cmd);
8307bbd8277SBenjamin Herrenschmidt snd_pmac_dbdma_free(chip, &chip->extra_dma);
831e70515ddST. H. Huth snd_pmac_dbdma_free(chip, &emergency_dbdma);
8321da177e4SLinus Torvalds iounmap(chip->macio_base);
8331da177e4SLinus Torvalds iounmap(chip->latch_base);
8341da177e4SLinus Torvalds iounmap(chip->awacs);
8351da177e4SLinus Torvalds iounmap(chip->playback.dma);
8361da177e4SLinus Torvalds iounmap(chip->capture.dma);
837cc5d0189SBenjamin Herrenschmidt
8381da177e4SLinus Torvalds if (chip->node) {
8397bbd8277SBenjamin Herrenschmidt int i;
8401da177e4SLinus Torvalds for (i = 0; i < 3; i++) {
841cc5d0189SBenjamin Herrenschmidt if (chip->requested & (1 << i))
842cc5d0189SBenjamin Herrenschmidt release_mem_region(chip->rsrc[i].start,
84328f65c11SJoe Perches resource_size(&chip->rsrc[i]));
8441da177e4SLinus Torvalds }
8451da177e4SLinus Torvalds }
846cc5d0189SBenjamin Herrenschmidt
8477bbd8277SBenjamin Herrenschmidt pci_dev_put(chip->pdev);
84830686ba6SStephen Rothwell of_node_put(chip->node);
8491da177e4SLinus Torvalds kfree(chip);
8501da177e4SLinus Torvalds return 0;
8511da177e4SLinus Torvalds }
8521da177e4SLinus Torvalds
8531da177e4SLinus Torvalds
8541da177e4SLinus Torvalds /*
8551da177e4SLinus Torvalds * free the device
8561da177e4SLinus Torvalds */
snd_pmac_dev_free(struct snd_device * device)85765b29f50STakashi Iwai static int snd_pmac_dev_free(struct snd_device *device)
8581da177e4SLinus Torvalds {
85965b29f50STakashi Iwai struct snd_pmac *chip = device->device_data;
8601da177e4SLinus Torvalds return snd_pmac_free(chip);
8611da177e4SLinus Torvalds }
8621da177e4SLinus Torvalds
8631da177e4SLinus Torvalds
8641da177e4SLinus Torvalds /*
8651da177e4SLinus Torvalds * check the machine support byteswap (little-endian)
8661da177e4SLinus Torvalds */
8671da177e4SLinus Torvalds
detect_byte_swap(struct snd_pmac * chip)86815afafc2SBill Pemberton static void detect_byte_swap(struct snd_pmac *chip)
8691da177e4SLinus Torvalds {
8701da177e4SLinus Torvalds struct device_node *mio;
8711da177e4SLinus Torvalds
8721da177e4SLinus Torvalds /* if seems that Keylargo can't byte-swap */
8731da177e4SLinus Torvalds for (mio = chip->node->parent; mio; mio = mio->parent) {
874157ab88eSRob Herring if (of_node_name_eq(mio, "mac-io")) {
87555b61fecSStephen Rothwell if (of_device_is_compatible(mio, "Keylargo"))
8761da177e4SLinus Torvalds chip->can_byte_swap = 0;
8771da177e4SLinus Torvalds break;
8781da177e4SLinus Torvalds }
8791da177e4SLinus Torvalds }
8801da177e4SLinus Torvalds
8811da177e4SLinus Torvalds /* it seems the Pismo & iBook can't byte-swap in hardware. */
88271a157e8SGrant Likely if (of_machine_is_compatible("PowerBook3,1") ||
88371a157e8SGrant Likely of_machine_is_compatible("PowerBook2,1"))
8841da177e4SLinus Torvalds chip->can_byte_swap = 0 ;
8851da177e4SLinus Torvalds
88671a157e8SGrant Likely if (of_machine_is_compatible("PowerBook2,1"))
8871da177e4SLinus Torvalds chip->can_duplex = 0;
8881da177e4SLinus Torvalds }
8891da177e4SLinus Torvalds
8901da177e4SLinus Torvalds
8911da177e4SLinus Torvalds /*
8921da177e4SLinus Torvalds * detect a sound chip
8931da177e4SLinus Torvalds */
snd_pmac_detect(struct snd_pmac * chip)89415afafc2SBill Pemberton static int snd_pmac_detect(struct snd_pmac *chip)
8951da177e4SLinus Torvalds {
89630686ba6SStephen Rothwell struct device_node *sound;
89730686ba6SStephen Rothwell struct device_node *dn;
898c4f55b39SStephen Rothwell const unsigned int *prop;
899c4f55b39SStephen Rothwell unsigned int l;
9007bbd8277SBenjamin Herrenschmidt struct macio_chip* macio;
9017bbd8277SBenjamin Herrenschmidt
902e8222502SBenjamin Herrenschmidt if (!machine_is(powermac))
9031da177e4SLinus Torvalds return -ENODEV;
9041da177e4SLinus Torvalds
9051da177e4SLinus Torvalds chip->subframe = 0;
9061da177e4SLinus Torvalds chip->revision = 0;
9071da177e4SLinus Torvalds chip->freqs_ok = 0xff; /* all ok */
9081da177e4SLinus Torvalds chip->model = PMAC_AWACS;
9091da177e4SLinus Torvalds chip->can_byte_swap = 1;
9101da177e4SLinus Torvalds chip->can_duplex = 1;
9111da177e4SLinus Torvalds chip->can_capture = 1;
9121da177e4SLinus Torvalds chip->num_freqs = ARRAY_SIZE(awacs_freqs);
9131da177e4SLinus Torvalds chip->freq_table = awacs_freqs;
914367636e8SBenjamin Herrenschmidt chip->pdev = NULL;
9151da177e4SLinus Torvalds
9161da177e4SLinus Torvalds chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
9171da177e4SLinus Torvalds
9181da177e4SLinus Torvalds /* check machine type */
91971a157e8SGrant Likely if (of_machine_is_compatible("AAPL,3400/2400")
92071a157e8SGrant Likely || of_machine_is_compatible("AAPL,3500"))
9211da177e4SLinus Torvalds chip->is_pbook_3400 = 1;
92271a157e8SGrant Likely else if (of_machine_is_compatible("PowerBook1,1")
92371a157e8SGrant Likely || of_machine_is_compatible("AAPL,PowerBook1998"))
9241da177e4SLinus Torvalds chip->is_pbook_G3 = 1;
92530686ba6SStephen Rothwell chip->node = of_find_node_by_name(NULL, "awacs");
92630686ba6SStephen Rothwell sound = of_node_get(chip->node);
9271da177e4SLinus Torvalds
9281da177e4SLinus Torvalds /*
9291da177e4SLinus Torvalds * powermac G3 models have a node called "davbus"
9301da177e4SLinus Torvalds * with a child called "sound".
9311da177e4SLinus Torvalds */
9325218064cSBenjamin Herrenschmidt if (!chip->node)
93330686ba6SStephen Rothwell chip->node = of_find_node_by_name(NULL, "davbus");
9341da177e4SLinus Torvalds /*
9351da177e4SLinus Torvalds * if we didn't find a davbus device, try 'i2s-a' since
9361da177e4SLinus Torvalds * this seems to be what iBooks have
9371da177e4SLinus Torvalds */
9387bbd8277SBenjamin Herrenschmidt if (! chip->node) {
93930686ba6SStephen Rothwell chip->node = of_find_node_by_name(NULL, "i2s-a");
9405218064cSBenjamin Herrenschmidt if (chip->node && chip->node->parent &&
9415218064cSBenjamin Herrenschmidt chip->node->parent->parent) {
94255b61fecSStephen Rothwell if (of_device_is_compatible(chip->node->parent->parent,
9437bbd8277SBenjamin Herrenschmidt "K2-Keylargo"))
9447bbd8277SBenjamin Herrenschmidt chip->is_k2 = 1;
9457bbd8277SBenjamin Herrenschmidt }
9467bbd8277SBenjamin Herrenschmidt }
9471da177e4SLinus Torvalds if (! chip->node)
9481da177e4SLinus Torvalds return -ENODEV;
9497bbd8277SBenjamin Herrenschmidt
9505218064cSBenjamin Herrenschmidt if (!sound) {
951ccdb8ed3SGrant Likely for_each_node_by_name(sound, "sound")
952ccdb8ed3SGrant Likely if (sound->parent == chip->node)
953ccdb8ed3SGrant Likely break;
9545218064cSBenjamin Herrenschmidt }
95530686ba6SStephen Rothwell if (! sound) {
95630686ba6SStephen Rothwell of_node_put(chip->node);
95741e904deSBenjamin Herrenschmidt chip->node = NULL;
9581da177e4SLinus Torvalds return -ENODEV;
95930686ba6SStephen Rothwell }
960c4f55b39SStephen Rothwell prop = of_get_property(sound, "sub-frame", NULL);
9611da177e4SLinus Torvalds if (prop && *prop < 16)
9621da177e4SLinus Torvalds chip->subframe = *prop;
963c4f55b39SStephen Rothwell prop = of_get_property(sound, "layout-id", NULL);
96455c385adSJohannes Berg if (prop) {
96555c385adSJohannes Berg /* partly deprecate snd-powermac, for those machines
96655c385adSJohannes Berg * that have a layout-id property for now */
96755c385adSJohannes Berg printk(KERN_INFO "snd-powermac no longer handles any "
96855c385adSJohannes Berg "machines with a layout-id property "
96955c385adSJohannes Berg "in the device-tree, use snd-aoa.\n");
97041e904deSBenjamin Herrenschmidt of_node_put(sound);
97130686ba6SStephen Rothwell of_node_put(chip->node);
97241e904deSBenjamin Herrenschmidt chip->node = NULL;
97355c385adSJohannes Berg return -ENODEV;
97455c385adSJohannes Berg }
9751da177e4SLinus Torvalds /* This should be verified on older screamers */
97655b61fecSStephen Rothwell if (of_device_is_compatible(sound, "screamer")) {
9771da177e4SLinus Torvalds chip->model = PMAC_SCREAMER;
9781da177e4SLinus Torvalds // chip->can_byte_swap = 0; /* FIXME: check this */
9791da177e4SLinus Torvalds }
98055b61fecSStephen Rothwell if (of_device_is_compatible(sound, "burgundy")) {
9811da177e4SLinus Torvalds chip->model = PMAC_BURGUNDY;
9821da177e4SLinus Torvalds chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
9831da177e4SLinus Torvalds }
98455b61fecSStephen Rothwell if (of_device_is_compatible(sound, "daca")) {
9851da177e4SLinus Torvalds chip->model = PMAC_DACA;
9861da177e4SLinus Torvalds chip->can_capture = 0; /* no capture */
9871da177e4SLinus Torvalds chip->can_duplex = 0;
9881da177e4SLinus Torvalds // chip->can_byte_swap = 0; /* FIXME: check this */
9891da177e4SLinus Torvalds chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
9901da177e4SLinus Torvalds }
99155b61fecSStephen Rothwell if (of_device_is_compatible(sound, "tumbler")) {
9921da177e4SLinus Torvalds chip->model = PMAC_TUMBLER;
99371a157e8SGrant Likely chip->can_capture = of_machine_is_compatible("PowerMac4,2")
9948460ae70SRisto Suominen || of_machine_is_compatible("PowerBook3,2")
9958460ae70SRisto Suominen || of_machine_is_compatible("PowerBook3,3")
9968460ae70SRisto Suominen || of_machine_is_compatible("PowerBook4,1")
9978460ae70SRisto Suominen || of_machine_is_compatible("PowerBook4,2")
9988460ae70SRisto Suominen || of_machine_is_compatible("PowerBook4,3");
9991da177e4SLinus Torvalds chip->can_duplex = 0;
10001da177e4SLinus Torvalds // chip->can_byte_swap = 0; /* FIXME: check this */
10011da177e4SLinus Torvalds chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
10021da177e4SLinus Torvalds chip->freq_table = tumbler_freqs;
10031da177e4SLinus Torvalds chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
10041da177e4SLinus Torvalds }
100555b61fecSStephen Rothwell if (of_device_is_compatible(sound, "snapper")) {
10061da177e4SLinus Torvalds chip->model = PMAC_SNAPPER;
10071da177e4SLinus Torvalds // chip->can_byte_swap = 0; /* FIXME: check this */
10081da177e4SLinus Torvalds chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
10091da177e4SLinus Torvalds chip->freq_table = tumbler_freqs;
10101da177e4SLinus Torvalds chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
10111da177e4SLinus Torvalds }
1012c4f55b39SStephen Rothwell prop = of_get_property(sound, "device-id", NULL);
10131da177e4SLinus Torvalds if (prop)
10141da177e4SLinus Torvalds chip->device_id = *prop;
101530686ba6SStephen Rothwell dn = of_find_node_by_name(NULL, "perch");
101630686ba6SStephen Rothwell chip->has_iic = (dn != NULL);
101730686ba6SStephen Rothwell of_node_put(dn);
10181da177e4SLinus Torvalds
10197bbd8277SBenjamin Herrenschmidt /* We need the PCI device for DMA allocations, let's use a crude method
10207bbd8277SBenjamin Herrenschmidt * for now ...
10217bbd8277SBenjamin Herrenschmidt */
10227bbd8277SBenjamin Herrenschmidt macio = macio_find(chip->node, macio_unknown);
10237bbd8277SBenjamin Herrenschmidt if (macio == NULL)
10247bbd8277SBenjamin Herrenschmidt printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
10257bbd8277SBenjamin Herrenschmidt else {
10267bbd8277SBenjamin Herrenschmidt struct pci_dev *pdev = NULL;
10277bbd8277SBenjamin Herrenschmidt
10287bbd8277SBenjamin Herrenschmidt for_each_pci_dev(pdev) {
10297bbd8277SBenjamin Herrenschmidt struct device_node *np = pci_device_to_OF_node(pdev);
10307bbd8277SBenjamin Herrenschmidt if (np && np == macio->of_node) {
10317bbd8277SBenjamin Herrenschmidt chip->pdev = pdev;
10327bbd8277SBenjamin Herrenschmidt break;
10337bbd8277SBenjamin Herrenschmidt }
10347bbd8277SBenjamin Herrenschmidt }
10357bbd8277SBenjamin Herrenschmidt }
10367bbd8277SBenjamin Herrenschmidt if (chip->pdev == NULL)
10375218064cSBenjamin Herrenschmidt printk(KERN_WARNING "snd-powermac: can't locate macio PCI"
10385218064cSBenjamin Herrenschmidt " device !\n");
10397bbd8277SBenjamin Herrenschmidt
10401da177e4SLinus Torvalds detect_byte_swap(chip);
10411da177e4SLinus Torvalds
10421da177e4SLinus Torvalds /* look for a property saying what sample rates
10431da177e4SLinus Torvalds are available */
1044c4f55b39SStephen Rothwell prop = of_get_property(sound, "sample-rates", &l);
10451da177e4SLinus Torvalds if (! prop)
1046c4f55b39SStephen Rothwell prop = of_get_property(sound, "output-frame-rates", &l);
10471da177e4SLinus Torvalds if (prop) {
10481da177e4SLinus Torvalds int i;
10491da177e4SLinus Torvalds chip->freqs_ok = 0;
10501da177e4SLinus Torvalds for (l /= sizeof(int); l > 0; --l) {
10511da177e4SLinus Torvalds unsigned int r = *prop++;
10521da177e4SLinus Torvalds /* Apple 'Fixed' format */
10531da177e4SLinus Torvalds if (r >= 0x10000)
10541da177e4SLinus Torvalds r >>= 16;
10551da177e4SLinus Torvalds for (i = 0; i < chip->num_freqs; ++i) {
10561da177e4SLinus Torvalds if (r == chip->freq_table[i]) {
10571da177e4SLinus Torvalds chip->freqs_ok |= (1 << i);
10581da177e4SLinus Torvalds break;
10591da177e4SLinus Torvalds }
10601da177e4SLinus Torvalds }
10611da177e4SLinus Torvalds }
10621da177e4SLinus Torvalds } else {
10631da177e4SLinus Torvalds /* assume only 44.1khz */
10641da177e4SLinus Torvalds chip->freqs_ok = 1;
10651da177e4SLinus Torvalds }
10661da177e4SLinus Torvalds
106730686ba6SStephen Rothwell of_node_put(sound);
10681da177e4SLinus Torvalds return 0;
10691da177e4SLinus Torvalds }
10701da177e4SLinus Torvalds
10711da177e4SLinus Torvalds #ifdef PMAC_SUPPORT_AUTOMUTE
10721da177e4SLinus Torvalds /*
10731da177e4SLinus Torvalds * auto-mute
10741da177e4SLinus Torvalds */
pmac_auto_mute_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)107565b29f50STakashi Iwai static int pmac_auto_mute_get(struct snd_kcontrol *kcontrol,
107665b29f50STakashi Iwai struct snd_ctl_elem_value *ucontrol)
10771da177e4SLinus Torvalds {
107865b29f50STakashi Iwai struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
10791da177e4SLinus Torvalds ucontrol->value.integer.value[0] = chip->auto_mute;
10801da177e4SLinus Torvalds return 0;
10811da177e4SLinus Torvalds }
10821da177e4SLinus Torvalds
pmac_auto_mute_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)108365b29f50STakashi Iwai static int pmac_auto_mute_put(struct snd_kcontrol *kcontrol,
108465b29f50STakashi Iwai struct snd_ctl_elem_value *ucontrol)
10851da177e4SLinus Torvalds {
108665b29f50STakashi Iwai struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
10871da177e4SLinus Torvalds if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1088d4079ac4STakashi Iwai chip->auto_mute = !!ucontrol->value.integer.value[0];
10891da177e4SLinus Torvalds if (chip->update_automute)
10901da177e4SLinus Torvalds chip->update_automute(chip, 1);
10911da177e4SLinus Torvalds return 1;
10921da177e4SLinus Torvalds }
10931da177e4SLinus Torvalds return 0;
10941da177e4SLinus Torvalds }
10951da177e4SLinus Torvalds
pmac_hp_detect_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)109665b29f50STakashi Iwai static int pmac_hp_detect_get(struct snd_kcontrol *kcontrol,
109765b29f50STakashi Iwai struct snd_ctl_elem_value *ucontrol)
10981da177e4SLinus Torvalds {
109965b29f50STakashi Iwai struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
11001da177e4SLinus Torvalds if (chip->detect_headphone)
11011da177e4SLinus Torvalds ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
11021da177e4SLinus Torvalds else
11031da177e4SLinus Torvalds ucontrol->value.integer.value[0] = 0;
11041da177e4SLinus Torvalds return 0;
11051da177e4SLinus Torvalds }
11061da177e4SLinus Torvalds
1107c031b0ccSTakashi Iwai static const struct snd_kcontrol_new auto_mute_controls[] = {
11081da177e4SLinus Torvalds { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
11091da177e4SLinus Torvalds .name = "Auto Mute Switch",
11101da177e4SLinus Torvalds .info = snd_pmac_boolean_mono_info,
11111da177e4SLinus Torvalds .get = pmac_auto_mute_get,
11121da177e4SLinus Torvalds .put = pmac_auto_mute_put,
11131da177e4SLinus Torvalds },
11141da177e4SLinus Torvalds { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
11151da177e4SLinus Torvalds .name = "Headphone Detection",
11161da177e4SLinus Torvalds .access = SNDRV_CTL_ELEM_ACCESS_READ,
11171da177e4SLinus Torvalds .info = snd_pmac_boolean_mono_info,
11181da177e4SLinus Torvalds .get = pmac_hp_detect_get,
11191da177e4SLinus Torvalds },
11201da177e4SLinus Torvalds };
11211da177e4SLinus Torvalds
snd_pmac_add_automute(struct snd_pmac * chip)112215afafc2SBill Pemberton int snd_pmac_add_automute(struct snd_pmac *chip)
11231da177e4SLinus Torvalds {
11241da177e4SLinus Torvalds int err;
11251da177e4SLinus Torvalds chip->auto_mute = 1;
11261da177e4SLinus Torvalds err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
11277bbd8277SBenjamin Herrenschmidt if (err < 0) {
11287bbd8277SBenjamin Herrenschmidt printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
11291da177e4SLinus Torvalds return err;
11307bbd8277SBenjamin Herrenschmidt }
11311da177e4SLinus Torvalds chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
11321da177e4SLinus Torvalds return snd_ctl_add(chip->card, chip->hp_detect_ctl);
11331da177e4SLinus Torvalds }
11341da177e4SLinus Torvalds #endif /* PMAC_SUPPORT_AUTOMUTE */
11351da177e4SLinus Torvalds
11361da177e4SLinus Torvalds /*
11371da177e4SLinus Torvalds * create and detect a pmac chip record
11381da177e4SLinus Torvalds */
snd_pmac_new(struct snd_card * card,struct snd_pmac ** chip_return)113915afafc2SBill Pemberton int snd_pmac_new(struct snd_card *card, struct snd_pmac **chip_return)
11401da177e4SLinus Torvalds {
114165b29f50STakashi Iwai struct snd_pmac *chip;
11421da177e4SLinus Torvalds struct device_node *np;
11431da177e4SLinus Torvalds int i, err;
11440ebfff14SBenjamin Herrenschmidt unsigned int irq;
11457bbd8277SBenjamin Herrenschmidt unsigned long ctrl_addr, txdma_addr, rxdma_addr;
114646dd47c1STakashi Iwai static const struct snd_device_ops ops = {
11471da177e4SLinus Torvalds .dev_free = snd_pmac_dev_free,
11481da177e4SLinus Torvalds };
11491da177e4SLinus Torvalds
11501da177e4SLinus Torvalds *chip_return = NULL;
11511da177e4SLinus Torvalds
1152561b220aSTakashi Iwai chip = kzalloc(sizeof(*chip), GFP_KERNEL);
11531da177e4SLinus Torvalds if (chip == NULL)
11541da177e4SLinus Torvalds return -ENOMEM;
11551da177e4SLinus Torvalds chip->card = card;
11561da177e4SLinus Torvalds
11571da177e4SLinus Torvalds spin_lock_init(&chip->reg_lock);
11581da177e4SLinus Torvalds chip->irq = chip->tx_irq = chip->rx_irq = -1;
11591da177e4SLinus Torvalds
11601da177e4SLinus Torvalds chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
11611da177e4SLinus Torvalds chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
11621da177e4SLinus Torvalds
1163*e73ad388STakashi Iwai err = snd_pmac_detect(chip);
1164*e73ad388STakashi Iwai if (err < 0)
11651da177e4SLinus Torvalds goto __error;
11661da177e4SLinus Torvalds
11677bbd8277SBenjamin Herrenschmidt if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
11687bbd8277SBenjamin Herrenschmidt snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1169e70515ddST. H. Huth snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0 ||
1170e70515ddST. H. Huth snd_pmac_dbdma_alloc(chip, &emergency_dbdma, 2) < 0) {
11711da177e4SLinus Torvalds err = -ENOMEM;
11721da177e4SLinus Torvalds goto __error;
11731da177e4SLinus Torvalds }
11741da177e4SLinus Torvalds
11751da177e4SLinus Torvalds np = chip->node;
1176cc5d0189SBenjamin Herrenschmidt chip->requested = 0;
11777bbd8277SBenjamin Herrenschmidt if (chip->is_k2) {
11786e9ef32fSTakashi Iwai static const char * const rnames[] = {
1179cc5d0189SBenjamin Herrenschmidt "Sound Control", "Sound DMA" };
11807bbd8277SBenjamin Herrenschmidt for (i = 0; i < 2; i ++) {
1181cc5d0189SBenjamin Herrenschmidt if (of_address_to_resource(np->parent, i,
1182cc5d0189SBenjamin Herrenschmidt &chip->rsrc[i])) {
1183cc5d0189SBenjamin Herrenschmidt printk(KERN_ERR "snd: can't translate rsrc "
1184cc5d0189SBenjamin Herrenschmidt " %d (%s)\n", i, rnames[i]);
11857bbd8277SBenjamin Herrenschmidt err = -ENODEV;
11867bbd8277SBenjamin Herrenschmidt goto __error;
11877bbd8277SBenjamin Herrenschmidt }
1188cc5d0189SBenjamin Herrenschmidt if (request_mem_region(chip->rsrc[i].start,
118928f65c11SJoe Perches resource_size(&chip->rsrc[i]),
1190cc5d0189SBenjamin Herrenschmidt rnames[i]) == NULL) {
1191cc5d0189SBenjamin Herrenschmidt printk(KERN_ERR "snd: can't request rsrc "
11922fb50f13SJoe Perches " %d (%s: %pR)\n",
11932fb50f13SJoe Perches i, rnames[i], &chip->rsrc[i]);
1194cc5d0189SBenjamin Herrenschmidt err = -ENODEV;
1195cc5d0189SBenjamin Herrenschmidt goto __error;
1196cc5d0189SBenjamin Herrenschmidt }
1197cc5d0189SBenjamin Herrenschmidt chip->requested |= (1 << i);
1198cc5d0189SBenjamin Herrenschmidt }
1199cc5d0189SBenjamin Herrenschmidt ctrl_addr = chip->rsrc[0].start;
1200cc5d0189SBenjamin Herrenschmidt txdma_addr = chip->rsrc[1].start;
12017bbd8277SBenjamin Herrenschmidt rxdma_addr = txdma_addr + 0x100;
12027bbd8277SBenjamin Herrenschmidt } else {
12036e9ef32fSTakashi Iwai static const char * const rnames[] = {
1204cc5d0189SBenjamin Herrenschmidt "Sound Control", "Sound Tx DMA", "Sound Rx DMA" };
12051da177e4SLinus Torvalds for (i = 0; i < 3; i ++) {
120688356e90SBenjamin Herrenschmidt if (of_address_to_resource(np, i,
1207cc5d0189SBenjamin Herrenschmidt &chip->rsrc[i])) {
1208cc5d0189SBenjamin Herrenschmidt printk(KERN_ERR "snd: can't translate rsrc "
1209cc5d0189SBenjamin Herrenschmidt " %d (%s)\n", i, rnames[i]);
12101da177e4SLinus Torvalds err = -ENODEV;
12111da177e4SLinus Torvalds goto __error;
12121da177e4SLinus Torvalds }
1213cc5d0189SBenjamin Herrenschmidt if (request_mem_region(chip->rsrc[i].start,
121428f65c11SJoe Perches resource_size(&chip->rsrc[i]),
1215cc5d0189SBenjamin Herrenschmidt rnames[i]) == NULL) {
1216cc5d0189SBenjamin Herrenschmidt printk(KERN_ERR "snd: can't request rsrc "
12172fb50f13SJoe Perches " %d (%s: %pR)\n",
12182fb50f13SJoe Perches i, rnames[i], &chip->rsrc[i]);
1219cc5d0189SBenjamin Herrenschmidt err = -ENODEV;
1220cc5d0189SBenjamin Herrenschmidt goto __error;
12217bbd8277SBenjamin Herrenschmidt }
1222cc5d0189SBenjamin Herrenschmidt chip->requested |= (1 << i);
1223cc5d0189SBenjamin Herrenschmidt }
1224cc5d0189SBenjamin Herrenschmidt ctrl_addr = chip->rsrc[0].start;
1225cc5d0189SBenjamin Herrenschmidt txdma_addr = chip->rsrc[1].start;
1226cc5d0189SBenjamin Herrenschmidt rxdma_addr = chip->rsrc[2].start;
12271da177e4SLinus Torvalds }
12281da177e4SLinus Torvalds
12297bbd8277SBenjamin Herrenschmidt chip->awacs = ioremap(ctrl_addr, 0x1000);
12307bbd8277SBenjamin Herrenschmidt chip->playback.dma = ioremap(txdma_addr, 0x100);
12317bbd8277SBenjamin Herrenschmidt chip->capture.dma = ioremap(rxdma_addr, 0x100);
12321da177e4SLinus Torvalds if (chip->model <= PMAC_BURGUNDY) {
12330ebfff14SBenjamin Herrenschmidt irq = irq_of_parse_and_map(np, 0);
12340ebfff14SBenjamin Herrenschmidt if (request_irq(irq, snd_pmac_ctrl_intr, 0,
12351da177e4SLinus Torvalds "PMac", (void*)chip)) {
12360ebfff14SBenjamin Herrenschmidt snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n",
12370ebfff14SBenjamin Herrenschmidt irq);
12381da177e4SLinus Torvalds err = -EBUSY;
12391da177e4SLinus Torvalds goto __error;
12401da177e4SLinus Torvalds }
12410ebfff14SBenjamin Herrenschmidt chip->irq = irq;
12421da177e4SLinus Torvalds }
12430ebfff14SBenjamin Herrenschmidt irq = irq_of_parse_and_map(np, 1);
12440ebfff14SBenjamin Herrenschmidt if (request_irq(irq, snd_pmac_tx_intr, 0, "PMac Output", (void*)chip)){
12450ebfff14SBenjamin Herrenschmidt snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
12461da177e4SLinus Torvalds err = -EBUSY;
12471da177e4SLinus Torvalds goto __error;
12481da177e4SLinus Torvalds }
12490ebfff14SBenjamin Herrenschmidt chip->tx_irq = irq;
12500ebfff14SBenjamin Herrenschmidt irq = irq_of_parse_and_map(np, 2);
12510ebfff14SBenjamin Herrenschmidt if (request_irq(irq, snd_pmac_rx_intr, 0, "PMac Input", (void*)chip)) {
12520ebfff14SBenjamin Herrenschmidt snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", irq);
12531da177e4SLinus Torvalds err = -EBUSY;
12541da177e4SLinus Torvalds goto __error;
12551da177e4SLinus Torvalds }
12560ebfff14SBenjamin Herrenschmidt chip->rx_irq = irq;
12571da177e4SLinus Torvalds
12581da177e4SLinus Torvalds snd_pmac_sound_feature(chip, 1);
12591da177e4SLinus Torvalds
12609a4f20fcSRisto Suominen /* reset & enable interrupts */
12619a4f20fcSRisto Suominen if (chip->model <= PMAC_BURGUNDY)
12629a4f20fcSRisto Suominen out_le32(&chip->awacs->control, chip->control_mask);
12631da177e4SLinus Torvalds
12641da177e4SLinus Torvalds /* Powerbooks have odd ways of enabling inputs such as
12651da177e4SLinus Torvalds an expansion-bay CD or sound from an internal modem
12661da177e4SLinus Torvalds or a PC-card modem. */
12671da177e4SLinus Torvalds if (chip->is_pbook_3400) {
12681da177e4SLinus Torvalds /* Enable CD and PC-card sound inputs. */
12691da177e4SLinus Torvalds /* This is done by reading from address
12701da177e4SLinus Torvalds * f301a000, + 0x10 to enable the expansion-bay
12711da177e4SLinus Torvalds * CD sound input, + 0x80 to enable the PC-card
12721da177e4SLinus Torvalds * sound input. The 0x100 enables the SCSI bus
12731da177e4SLinus Torvalds * terminator power.
12741da177e4SLinus Torvalds */
12751da177e4SLinus Torvalds chip->latch_base = ioremap (0xf301a000, 0x1000);
12761da177e4SLinus Torvalds in_8(chip->latch_base + 0x190);
12771da177e4SLinus Torvalds } else if (chip->is_pbook_G3) {
12781da177e4SLinus Torvalds struct device_node* mio;
12791da177e4SLinus Torvalds for (mio = chip->node->parent; mio; mio = mio->parent) {
1280157ab88eSRob Herring if (of_node_name_eq(mio, "mac-io")) {
1281cc5d0189SBenjamin Herrenschmidt struct resource r;
1282cc5d0189SBenjamin Herrenschmidt if (of_address_to_resource(mio, 0, &r) == 0)
1283cc5d0189SBenjamin Herrenschmidt chip->macio_base =
1284cc5d0189SBenjamin Herrenschmidt ioremap(r.start, 0x40);
12851da177e4SLinus Torvalds break;
12861da177e4SLinus Torvalds }
12871da177e4SLinus Torvalds }
12881da177e4SLinus Torvalds /* Enable CD sound input. */
12891da177e4SLinus Torvalds /* The relevant bits for writing to this byte are 0x8f.
12901da177e4SLinus Torvalds * I haven't found out what the 0x80 bit does.
12911da177e4SLinus Torvalds * For the 0xf bits, writing 3 or 7 enables the CD
12921da177e4SLinus Torvalds * input, any other value disables it. Values
12931da177e4SLinus Torvalds * 1, 3, 5, 7 enable the microphone. Values 0, 2,
12941da177e4SLinus Torvalds * 4, 6, 8 - f enable the input from the modem.
12951da177e4SLinus Torvalds */
12961da177e4SLinus Torvalds if (chip->macio_base)
12971da177e4SLinus Torvalds out_8(chip->macio_base + 0x37, 3);
12981da177e4SLinus Torvalds }
12991da177e4SLinus Torvalds
13001da177e4SLinus Torvalds /* Reset dbdma channels */
13011da177e4SLinus Torvalds snd_pmac_dbdma_reset(chip);
13021da177e4SLinus Torvalds
1303*e73ad388STakashi Iwai err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1304*e73ad388STakashi Iwai if (err < 0)
13051da177e4SLinus Torvalds goto __error;
13061da177e4SLinus Torvalds
13071da177e4SLinus Torvalds *chip_return = chip;
13081da177e4SLinus Torvalds return 0;
13091da177e4SLinus Torvalds
13101da177e4SLinus Torvalds __error:
13111da177e4SLinus Torvalds snd_pmac_free(chip);
13121da177e4SLinus Torvalds return err;
13131da177e4SLinus Torvalds }
13141da177e4SLinus Torvalds
13151da177e4SLinus Torvalds
13161da177e4SLinus Torvalds /*
13171da177e4SLinus Torvalds * sleep notify for powerbook
13181da177e4SLinus Torvalds */
13191da177e4SLinus Torvalds
13208c870933SBenjamin Herrenschmidt #ifdef CONFIG_PM
13211da177e4SLinus Torvalds
13221da177e4SLinus Torvalds /*
13231da177e4SLinus Torvalds * Save state when going to sleep, restore it afterwards.
13241da177e4SLinus Torvalds */
13251da177e4SLinus Torvalds
snd_pmac_suspend(struct snd_pmac * chip)13265e12bea0STakashi Iwai void snd_pmac_suspend(struct snd_pmac *chip)
13271da177e4SLinus Torvalds {
13281da177e4SLinus Torvalds unsigned long flags;
13291da177e4SLinus Torvalds
13305e12bea0STakashi Iwai snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
13311da177e4SLinus Torvalds if (chip->suspend)
13321da177e4SLinus Torvalds chip->suspend(chip);
13331da177e4SLinus Torvalds spin_lock_irqsave(&chip->reg_lock, flags);
13341da177e4SLinus Torvalds snd_pmac_beep_stop(chip);
13351da177e4SLinus Torvalds spin_unlock_irqrestore(&chip->reg_lock, flags);
13361da177e4SLinus Torvalds if (chip->irq >= 0)
13371da177e4SLinus Torvalds disable_irq(chip->irq);
13381da177e4SLinus Torvalds if (chip->tx_irq >= 0)
13391da177e4SLinus Torvalds disable_irq(chip->tx_irq);
13401da177e4SLinus Torvalds if (chip->rx_irq >= 0)
13411da177e4SLinus Torvalds disable_irq(chip->rx_irq);
13421da177e4SLinus Torvalds snd_pmac_sound_feature(chip, 0);
13431da177e4SLinus Torvalds }
13441da177e4SLinus Torvalds
snd_pmac_resume(struct snd_pmac * chip)13455e12bea0STakashi Iwai void snd_pmac_resume(struct snd_pmac *chip)
13461da177e4SLinus Torvalds {
13471da177e4SLinus Torvalds snd_pmac_sound_feature(chip, 1);
13481da177e4SLinus Torvalds if (chip->resume)
13491da177e4SLinus Torvalds chip->resume(chip);
13501da177e4SLinus Torvalds /* enable CD sound input */
13515e12bea0STakashi Iwai if (chip->macio_base && chip->is_pbook_G3)
13521da177e4SLinus Torvalds out_8(chip->macio_base + 0x37, 3);
13535e12bea0STakashi Iwai else if (chip->is_pbook_3400)
13541da177e4SLinus Torvalds in_8(chip->latch_base + 0x190);
13551da177e4SLinus Torvalds
13561da177e4SLinus Torvalds snd_pmac_pcm_set_format(chip);
13571da177e4SLinus Torvalds
13581da177e4SLinus Torvalds if (chip->irq >= 0)
13591da177e4SLinus Torvalds enable_irq(chip->irq);
13601da177e4SLinus Torvalds if (chip->tx_irq >= 0)
13611da177e4SLinus Torvalds enable_irq(chip->tx_irq);
13621da177e4SLinus Torvalds if (chip->rx_irq >= 0)
13631da177e4SLinus Torvalds enable_irq(chip->rx_irq);
13641da177e4SLinus Torvalds
13655e12bea0STakashi Iwai snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);
13661da177e4SLinus Torvalds }
13671da177e4SLinus Torvalds
13688c870933SBenjamin Herrenschmidt #endif /* CONFIG_PM */
13698c870933SBenjamin Herrenschmidt
1370