2 * PMac DBDMA lowlevel functions
4 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5 * code based on dmasound.c.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <sound/driver.h>
26 #include <linux/init.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include <linux/interrupt.h>
30 #include <linux/pci.h>
31 #include <linux/dma-mapping.h>
32 #include <sound/core.h>
34 #include <sound/pcm_params.h>
35 #include <asm/pmac_feature.h>
36 #include <asm/pci-bridge.h>
39 #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK)
40 static int snd_pmac_register_sleep_notifier(pmac_t *chip);
41 static int snd_pmac_unregister_sleep_notifier(pmac_t *chip);
42 static int snd_pmac_suspend(snd_card_t *card, pm_message_t state);
43 static int snd_pmac_resume(snd_card_t *card);
47 /* fixed frequency table for awacs, screamer, burgundy, DACA (44100 max) */
48 static int awacs_freqs[8] = {
49 44100, 29400, 22050, 17640, 14700, 11025, 8820, 7350
51 /* fixed frequency table for tumbler */
52 static int tumbler_freqs[1] = {
57 * allocate DBDMA command arrays
59 static int snd_pmac_dbdma_alloc(pmac_t *chip, pmac_dbdma_t *rec, int size)
61 unsigned int rsize = sizeof(struct dbdma_cmd) * (size + 1);
63 rec->space = dma_alloc_coherent(&chip->pdev->dev, rsize,
64 &rec->dma_base, GFP_KERNEL);
65 if (rec->space == NULL)
68 memset(rec->space, 0, rsize);
69 rec->cmds = (void __iomem *)DBDMA_ALIGN(rec->space);
70 rec->addr = rec->dma_base + (unsigned long)((char *)rec->cmds - (char *)rec->space);
75 static void snd_pmac_dbdma_free(pmac_t *chip, pmac_dbdma_t *rec)
78 unsigned int rsize = sizeof(struct dbdma_cmd) * (rec->size + 1);
80 dma_free_coherent(&chip->pdev->dev, rsize, rec->space, rec->dma_base);
90 * look up frequency table
93 unsigned int snd_pmac_rate_index(pmac_t *chip, pmac_stream_t *rec, unsigned int rate)
98 if (rate > chip->freq_table[0])
101 for (i = 0; i < chip->num_freqs; i++, ok >>= 1) {
102 if (! (ok & 1)) continue;
104 if (rate >= chip->freq_table[i])
111 * check whether another stream is active
113 static inline int another_stream(int stream)
115 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
116 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
122 static int snd_pmac_pcm_hw_params(snd_pcm_substream_t *subs,
123 snd_pcm_hw_params_t *hw_params)
125 return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
131 static int snd_pmac_pcm_hw_free(snd_pcm_substream_t *subs)
133 snd_pcm_lib_free_pages(subs);
138 * get a stream of the opposite direction
140 static pmac_stream_t *snd_pmac_get_stream(pmac_t *chip, int stream)
143 case SNDRV_PCM_STREAM_PLAYBACK:
144 return &chip->playback;
145 case SNDRV_PCM_STREAM_CAPTURE:
146 return &chip->capture;
154 * wait while run status is on
157 snd_pmac_wait_ack(pmac_stream_t *rec)
160 while ((in_le32(&rec->dma->status) & RUN) && timeout-- > 0)
165 * set the format and rate to the chip.
166 * call the lowlevel function if defined (e.g. for AWACS).
168 static void snd_pmac_pcm_set_format(pmac_t *chip)
170 /* set up frequency and format */
171 out_le32(&chip->awacs->control, chip->control_mask | (chip->rate_index << 8));
172 out_le32(&chip->awacs->byteswap, chip->format == SNDRV_PCM_FORMAT_S16_LE ? 1 : 0);
173 if (chip->set_format)
174 chip->set_format(chip);
178 * stop the DMA transfer
180 inline static void snd_pmac_dma_stop(pmac_stream_t *rec)
182 out_le32(&rec->dma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
183 snd_pmac_wait_ack(rec);
187 * set the command pointer address
189 inline static void snd_pmac_dma_set_command(pmac_stream_t *rec, pmac_dbdma_t *cmd)
191 out_le32(&rec->dma->cmdptr, cmd->addr);
197 inline static void snd_pmac_dma_run(pmac_stream_t *rec, int status)
199 out_le32(&rec->dma->control, status | (status << 16));
204 * prepare playback/capture stream
206 static int snd_pmac_pcm_prepare(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs)
209 volatile struct dbdma_cmd __iomem *cp;
210 snd_pcm_runtime_t *runtime = subs->runtime;
215 rec->dma_size = snd_pcm_lib_buffer_bytes(subs);
216 rec->period_size = snd_pcm_lib_period_bytes(subs);
217 rec->nperiods = rec->dma_size / rec->period_size;
219 rate_index = snd_pmac_rate_index(chip, rec, runtime->rate);
221 /* set up constraints */
222 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
223 snd_runtime_check(astr, return -EINVAL);
224 astr->cur_freqs = 1 << rate_index;
225 astr->cur_formats = 1 << runtime->format;
226 chip->rate_index = rate_index;
227 chip->format = runtime->format;
229 /* We really want to execute a DMA stop command, after the AWACS
231 * For reasons I don't understand, it stops the hissing noise
232 * common to many PowerBook G3 systems and random noise otherwise
233 * captured on iBook2's about every third time. -ReneR
235 spin_lock_irq(&chip->reg_lock);
236 snd_pmac_dma_stop(rec);
237 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
238 snd_pmac_dma_set_command(rec, &chip->extra_dma);
239 snd_pmac_dma_run(rec, RUN);
240 spin_unlock_irq(&chip->reg_lock);
242 spin_lock_irq(&chip->reg_lock);
243 /* continuous DMA memory type doesn't provide the physical address,
244 * so we need to resolve the address here...
246 offset = runtime->dma_addr;
247 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++) {
248 st_le32(&cp->phy_addr, offset);
249 st_le16(&cp->req_count, rec->period_size);
250 /*st_le16(&cp->res_count, 0);*/
251 st_le16(&cp->xfer_status, 0);
252 offset += rec->period_size;
255 st_le16(&cp->command, DBDMA_NOP + BR_ALWAYS);
256 st_le32(&cp->cmd_dep, rec->cmd.addr);
258 snd_pmac_dma_stop(rec);
259 snd_pmac_dma_set_command(rec, &rec->cmd);
260 spin_unlock_irq(&chip->reg_lock);
269 static int snd_pmac_pcm_trigger(pmac_t *chip, pmac_stream_t *rec,
270 snd_pcm_substream_t *subs, int cmd)
272 volatile struct dbdma_cmd __iomem *cp;
276 case SNDRV_PCM_TRIGGER_START:
277 case SNDRV_PCM_TRIGGER_RESUME:
280 command = (subs->stream == SNDRV_PCM_STREAM_PLAYBACK ?
281 OUTPUT_MORE : INPUT_MORE) + INTR_ALWAYS;
282 spin_lock(&chip->reg_lock);
283 snd_pmac_beep_stop(chip);
284 snd_pmac_pcm_set_format(chip);
285 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
286 out_le16(&cp->command, command);
287 snd_pmac_dma_set_command(rec, &rec->cmd);
288 (void)in_le32(&rec->dma->status);
289 snd_pmac_dma_run(rec, RUN|WAKE);
291 spin_unlock(&chip->reg_lock);
294 case SNDRV_PCM_TRIGGER_STOP:
295 case SNDRV_PCM_TRIGGER_SUSPEND:
296 spin_lock(&chip->reg_lock);
298 /*printk("stopped!!\n");*/
299 snd_pmac_dma_stop(rec);
300 for (i = 0, cp = rec->cmd.cmds; i < rec->nperiods; i++, cp++)
301 out_le16(&cp->command, DBDMA_STOP);
302 spin_unlock(&chip->reg_lock);
313 * return the current pointer
316 static snd_pcm_uframes_t snd_pmac_pcm_pointer(pmac_t *chip, pmac_stream_t *rec,
317 snd_pcm_substream_t *subs)
321 #if 1 /* hmm.. how can we get the current dma pointer?? */
323 volatile struct dbdma_cmd __iomem *cp = &rec->cmd.cmds[rec->cur_period];
324 stat = ld_le16(&cp->xfer_status);
325 if (stat & (ACTIVE|DEAD)) {
326 count = in_le16(&cp->res_count);
328 count = rec->period_size - count;
331 count += rec->cur_period * rec->period_size;
332 /*printk("pointer=%d\n", count);*/
333 return bytes_to_frames(subs->runtime, count);
340 static int snd_pmac_playback_prepare(snd_pcm_substream_t *subs)
342 pmac_t *chip = snd_pcm_substream_chip(subs);
343 return snd_pmac_pcm_prepare(chip, &chip->playback, subs);
346 static int snd_pmac_playback_trigger(snd_pcm_substream_t *subs,
349 pmac_t *chip = snd_pcm_substream_chip(subs);
350 return snd_pmac_pcm_trigger(chip, &chip->playback, subs, cmd);
353 static snd_pcm_uframes_t snd_pmac_playback_pointer(snd_pcm_substream_t *subs)
355 pmac_t *chip = snd_pcm_substream_chip(subs);
356 return snd_pmac_pcm_pointer(chip, &chip->playback, subs);
364 static int snd_pmac_capture_prepare(snd_pcm_substream_t *subs)
366 pmac_t *chip = snd_pcm_substream_chip(subs);
367 return snd_pmac_pcm_prepare(chip, &chip->capture, subs);
370 static int snd_pmac_capture_trigger(snd_pcm_substream_t *subs,
373 pmac_t *chip = snd_pcm_substream_chip(subs);
374 return snd_pmac_pcm_trigger(chip, &chip->capture, subs, cmd);
377 static snd_pcm_uframes_t snd_pmac_capture_pointer(snd_pcm_substream_t *subs)
379 pmac_t *chip = snd_pcm_substream_chip(subs);
380 return snd_pmac_pcm_pointer(chip, &chip->capture, subs);
385 * update playback/capture pointer from interrupts
387 static void snd_pmac_pcm_update(pmac_t *chip, pmac_stream_t *rec)
389 volatile struct dbdma_cmd __iomem *cp;
393 spin_lock(&chip->reg_lock);
395 cp = &rec->cmd.cmds[rec->cur_period];
396 for (c = 0; c < rec->nperiods; c++) { /* at most all fragments */
397 stat = ld_le16(&cp->xfer_status);
398 if (! (stat & ACTIVE))
400 /*printk("update frag %d\n", rec->cur_period);*/
401 st_le16(&cp->xfer_status, 0);
402 st_le16(&cp->req_count, rec->period_size);
403 /*st_le16(&cp->res_count, 0);*/
405 if (rec->cur_period >= rec->nperiods) {
410 spin_unlock(&chip->reg_lock);
411 snd_pcm_period_elapsed(rec->substream);
412 spin_lock(&chip->reg_lock);
415 spin_unlock(&chip->reg_lock);
423 static snd_pcm_hardware_t snd_pmac_playback =
425 .info = (SNDRV_PCM_INFO_INTERLEAVED |
426 SNDRV_PCM_INFO_MMAP |
427 SNDRV_PCM_INFO_MMAP_VALID |
428 SNDRV_PCM_INFO_RESUME),
429 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
430 .rates = SNDRV_PCM_RATE_8000_44100,
435 .buffer_bytes_max = 131072,
436 .period_bytes_min = 256,
437 .period_bytes_max = 16384,
439 .periods_max = PMAC_MAX_FRAGS,
442 static snd_pcm_hardware_t snd_pmac_capture =
444 .info = (SNDRV_PCM_INFO_INTERLEAVED |
445 SNDRV_PCM_INFO_MMAP |
446 SNDRV_PCM_INFO_MMAP_VALID |
447 SNDRV_PCM_INFO_RESUME),
448 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_LE,
449 .rates = SNDRV_PCM_RATE_8000_44100,
454 .buffer_bytes_max = 131072,
455 .period_bytes_min = 256,
456 .period_bytes_max = 16384,
458 .periods_max = PMAC_MAX_FRAGS,
463 static int snd_pmac_hw_rule_rate(snd_pcm_hw_params_t *params,
464 snd_pcm_hw_rule_t *rule)
466 pmac_t *chip = rule->private;
467 pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]);
468 int i, freq_table[8], num_freqs;
470 snd_runtime_check(rec, return -EINVAL);
472 for (i = chip->num_freqs - 1; i >= 0; i--) {
473 if (rec->cur_freqs & (1 << i))
474 freq_table[num_freqs++] = chip->freq_table[i];
477 return snd_interval_list(hw_param_interval(params, rule->var),
478 num_freqs, freq_table, 0);
481 static int snd_pmac_hw_rule_format(snd_pcm_hw_params_t *params,
482 snd_pcm_hw_rule_t *rule)
484 pmac_t *chip = rule->private;
485 pmac_stream_t *rec = snd_pmac_get_stream(chip, rule->deps[0]);
487 snd_runtime_check(rec, return -EINVAL);
488 return snd_mask_refine_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
493 static int snd_pmac_pcm_open(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs)
495 snd_pcm_runtime_t *runtime = subs->runtime;
497 static int typical_freqs[] = {
503 static int typical_freq_flags[] = {
504 SNDRV_PCM_RATE_44100,
505 SNDRV_PCM_RATE_22050,
506 SNDRV_PCM_RATE_11025,
510 /* look up frequency table and fill bit mask */
511 runtime->hw.rates = 0;
512 fflags = chip->freqs_ok;
513 for (i = 0; typical_freqs[i]; i++) {
514 for (j = 0; j < chip->num_freqs; j++) {
515 if ((chip->freqs_ok & (1 << j)) &&
516 chip->freq_table[j] == typical_freqs[i]) {
517 runtime->hw.rates |= typical_freq_flags[i];
523 if (fflags) /* rest */
524 runtime->hw.rates |= SNDRV_PCM_RATE_KNOT;
526 /* check for minimum and maximum rates */
527 for (i = 0; i < chip->num_freqs; i++) {
528 if (chip->freqs_ok & (1 << i)) {
529 runtime->hw.rate_max = chip->freq_table[i];
533 for (i = chip->num_freqs - 1; i >= 0; i--) {
534 if (chip->freqs_ok & (1 << i)) {
535 runtime->hw.rate_min = chip->freq_table[i];
539 runtime->hw.formats = chip->formats_ok;
540 if (chip->can_capture) {
541 if (! chip->can_duplex)
542 runtime->hw.info |= SNDRV_PCM_INFO_HALF_DUPLEX;
543 runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;
545 runtime->private_data = rec;
546 rec->substream = subs;
548 #if 0 /* FIXME: still under development.. */
549 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
550 snd_pmac_hw_rule_rate, chip, rec->stream, -1);
551 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT,
552 snd_pmac_hw_rule_format, chip, rec->stream, -1);
555 runtime->hw.periods_max = rec->cmd.size - 1;
557 if (chip->can_duplex)
558 snd_pcm_set_sync(subs);
560 /* constraints to fix choppy sound */
561 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
565 static int snd_pmac_pcm_close(pmac_t *chip, pmac_stream_t *rec, snd_pcm_substream_t *subs)
569 snd_pmac_dma_stop(rec);
571 astr = snd_pmac_get_stream(chip, another_stream(rec->stream));
572 snd_runtime_check(astr, return -EINVAL);
574 /* reset constraints */
575 astr->cur_freqs = chip->freqs_ok;
576 astr->cur_formats = chip->formats_ok;
581 static int snd_pmac_playback_open(snd_pcm_substream_t *subs)
583 pmac_t *chip = snd_pcm_substream_chip(subs);
585 subs->runtime->hw = snd_pmac_playback;
586 return snd_pmac_pcm_open(chip, &chip->playback, subs);
589 static int snd_pmac_capture_open(snd_pcm_substream_t *subs)
591 pmac_t *chip = snd_pcm_substream_chip(subs);
593 subs->runtime->hw = snd_pmac_capture;
594 return snd_pmac_pcm_open(chip, &chip->capture, subs);
597 static int snd_pmac_playback_close(snd_pcm_substream_t *subs)
599 pmac_t *chip = snd_pcm_substream_chip(subs);
601 return snd_pmac_pcm_close(chip, &chip->playback, subs);
604 static int snd_pmac_capture_close(snd_pcm_substream_t *subs)
606 pmac_t *chip = snd_pcm_substream_chip(subs);
608 return snd_pmac_pcm_close(chip, &chip->capture, subs);
614 static snd_pcm_ops_t snd_pmac_playback_ops = {
615 .open = snd_pmac_playback_open,
616 .close = snd_pmac_playback_close,
617 .ioctl = snd_pcm_lib_ioctl,
618 .hw_params = snd_pmac_pcm_hw_params,
619 .hw_free = snd_pmac_pcm_hw_free,
620 .prepare = snd_pmac_playback_prepare,
621 .trigger = snd_pmac_playback_trigger,
622 .pointer = snd_pmac_playback_pointer,
625 static snd_pcm_ops_t snd_pmac_capture_ops = {
626 .open = snd_pmac_capture_open,
627 .close = snd_pmac_capture_close,
628 .ioctl = snd_pcm_lib_ioctl,
629 .hw_params = snd_pmac_pcm_hw_params,
630 .hw_free = snd_pmac_pcm_hw_free,
631 .prepare = snd_pmac_capture_prepare,
632 .trigger = snd_pmac_capture_trigger,
633 .pointer = snd_pmac_capture_pointer,
636 static void pmac_pcm_free(snd_pcm_t *pcm)
638 snd_pcm_lib_preallocate_free_for_all(pcm);
641 int __init snd_pmac_pcm_new(pmac_t *chip)
645 int num_captures = 1;
647 if (! chip->can_capture)
649 err = snd_pcm_new(chip->card, chip->card->driver, 0, 1, num_captures, &pcm);
653 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_pmac_playback_ops);
654 if (chip->can_capture)
655 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_pmac_capture_ops);
657 pcm->private_data = chip;
658 pcm->private_free = pmac_pcm_free;
659 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
660 strcpy(pcm->name, chip->card->shortname);
663 chip->formats_ok = SNDRV_PCM_FMTBIT_S16_BE;
664 if (chip->can_byte_swap)
665 chip->formats_ok |= SNDRV_PCM_FMTBIT_S16_LE;
667 chip->playback.cur_formats = chip->formats_ok;
668 chip->capture.cur_formats = chip->formats_ok;
669 chip->playback.cur_freqs = chip->freqs_ok;
670 chip->capture.cur_freqs = chip->freqs_ok;
672 /* preallocate 64k buffer */
673 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
675 64 * 1024, 64 * 1024);
681 static void snd_pmac_dbdma_reset(pmac_t *chip)
683 out_le32(&chip->playback.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
684 snd_pmac_wait_ack(&chip->playback);
685 out_le32(&chip->capture.dma->control, (RUN|PAUSE|FLUSH|WAKE|DEAD) << 16);
686 snd_pmac_wait_ack(&chip->capture);
693 void snd_pmac_beep_dma_start(pmac_t *chip, int bytes, unsigned long addr, int speed)
695 pmac_stream_t *rec = &chip->playback;
697 snd_pmac_dma_stop(rec);
698 st_le16(&chip->extra_dma.cmds->req_count, bytes);
699 st_le16(&chip->extra_dma.cmds->xfer_status, 0);
700 st_le32(&chip->extra_dma.cmds->cmd_dep, chip->extra_dma.addr);
701 st_le32(&chip->extra_dma.cmds->phy_addr, addr);
702 st_le16(&chip->extra_dma.cmds->command, OUTPUT_MORE + BR_ALWAYS);
703 out_le32(&chip->awacs->control,
704 (in_le32(&chip->awacs->control) & ~0x1f00)
706 out_le32(&chip->awacs->byteswap, 0);
707 snd_pmac_dma_set_command(rec, &chip->extra_dma);
708 snd_pmac_dma_run(rec, RUN);
711 void snd_pmac_beep_dma_stop(pmac_t *chip)
713 snd_pmac_dma_stop(&chip->playback);
714 st_le16(&chip->extra_dma.cmds->command, DBDMA_STOP);
715 snd_pmac_pcm_set_format(chip); /* reset format */
723 snd_pmac_tx_intr(int irq, void *devid, struct pt_regs *regs)
725 pmac_t *chip = devid;
726 snd_pmac_pcm_update(chip, &chip->playback);
732 snd_pmac_rx_intr(int irq, void *devid, struct pt_regs *regs)
734 pmac_t *chip = devid;
735 snd_pmac_pcm_update(chip, &chip->capture);
741 snd_pmac_ctrl_intr(int irq, void *devid, struct pt_regs *regs)
743 pmac_t *chip = devid;
744 int ctrl = in_le32(&chip->awacs->control);
746 /*printk("pmac: control interrupt.. 0x%x\n", ctrl);*/
747 if (ctrl & MASK_PORTCHG) {
748 /* do something when headphone is plugged/unplugged? */
749 if (chip->update_automute)
750 chip->update_automute(chip, 1);
752 if (ctrl & MASK_CNTLERR) {
753 int err = (in_le32(&chip->awacs->codec_stat) & MASK_ERRCODE) >> 16;
754 if (err && chip->model <= PMAC_SCREAMER)
755 snd_printk(KERN_DEBUG "error %x\n", err);
757 /* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
758 out_le32(&chip->awacs->control, ctrl);
764 * a wrapper to feature call for compatibility
766 static void snd_pmac_sound_feature(pmac_t *chip, int enable)
768 ppc_md.feature_call(PMAC_FTR_SOUND_CHIP_ENABLE, chip->node, 0, enable);
775 static int snd_pmac_free(pmac_t *chip)
778 if (chip->initialized) {
779 snd_pmac_dbdma_reset(chip);
780 /* disable interrupts from awacs interface */
781 out_le32(&chip->awacs->control, in_le32(&chip->awacs->control) & 0xfff);
784 snd_pmac_sound_feature(chip, 0);
785 #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK)
786 snd_pmac_unregister_sleep_notifier(chip);
789 /* clean up mixer if any */
790 if (chip->mixer_free)
791 chip->mixer_free(chip);
793 snd_pmac_detach_beep(chip);
795 /* release resources */
797 free_irq(chip->irq, (void*)chip);
798 if (chip->tx_irq >= 0)
799 free_irq(chip->tx_irq, (void*)chip);
800 if (chip->rx_irq >= 0)
801 free_irq(chip->rx_irq, (void*)chip);
802 snd_pmac_dbdma_free(chip, &chip->playback.cmd);
803 snd_pmac_dbdma_free(chip, &chip->capture.cmd);
804 snd_pmac_dbdma_free(chip, &chip->extra_dma);
805 if (chip->macio_base)
806 iounmap(chip->macio_base);
807 if (chip->latch_base)
808 iounmap(chip->latch_base);
810 iounmap(chip->awacs);
811 if (chip->playback.dma)
812 iounmap(chip->playback.dma);
813 if (chip->capture.dma)
814 iounmap(chip->capture.dma);
819 for (i = 0; i < 3; i++) {
820 if (chip->of_requested & (1 << i)) {
822 release_OF_resource(chip->node->parent,
825 release_OF_resource(chip->node, i);
829 #endif /* CONFIG_PPC64 */
831 pci_dev_put(chip->pdev);
840 static int snd_pmac_dev_free(snd_device_t *device)
842 pmac_t *chip = device->device_data;
843 return snd_pmac_free(chip);
848 * check the machine support byteswap (little-endian)
851 static void __init detect_byte_swap(pmac_t *chip)
853 struct device_node *mio;
855 /* if seems that Keylargo can't byte-swap */
856 for (mio = chip->node->parent; mio; mio = mio->parent) {
857 if (strcmp(mio->name, "mac-io") == 0) {
858 if (device_is_compatible(mio, "Keylargo"))
859 chip->can_byte_swap = 0;
864 /* it seems the Pismo & iBook can't byte-swap in hardware. */
865 if (machine_is_compatible("PowerBook3,1") ||
866 machine_is_compatible("PowerBook2,1"))
867 chip->can_byte_swap = 0 ;
869 if (machine_is_compatible("PowerBook2,1"))
870 chip->can_duplex = 0;
875 * detect a sound chip
877 static int __init snd_pmac_detect(pmac_t *chip)
879 struct device_node *sound;
880 unsigned int *prop, l;
881 struct macio_chip* macio;
885 if (_machine != _MACH_Pmac)
890 chip->freqs_ok = 0xff; /* all ok */
891 chip->model = PMAC_AWACS;
892 chip->can_byte_swap = 1;
893 chip->can_duplex = 1;
894 chip->can_capture = 1;
895 chip->num_freqs = ARRAY_SIZE(awacs_freqs);
896 chip->freq_table = awacs_freqs;
898 chip->control_mask = MASK_IEPC | MASK_IEE | 0x11; /* default */
900 /* check machine type */
901 if (machine_is_compatible("AAPL,3400/2400")
902 || machine_is_compatible("AAPL,3500"))
903 chip->is_pbook_3400 = 1;
904 else if (machine_is_compatible("PowerBook1,1")
905 || machine_is_compatible("AAPL,PowerBook1998"))
906 chip->is_pbook_G3 = 1;
907 chip->node = find_devices("awacs");
912 * powermac G3 models have a node called "davbus"
913 * with a child called "sound".
915 chip->node = find_devices("davbus");
917 * if we didn't find a davbus device, try 'i2s-a' since
918 * this seems to be what iBooks have
921 chip->node = find_devices("i2s-a");
922 if (chip->node && chip->node->parent && chip->node->parent->parent) {
923 if (device_is_compatible(chip->node->parent->parent,
931 sound = find_devices("sound");
932 while (sound && sound->parent != chip->node)
936 prop = (unsigned int *) get_property(sound, "sub-frame", NULL);
937 if (prop && *prop < 16)
938 chip->subframe = *prop;
939 prop = (unsigned int *) get_property(sound, "layout-id", NULL);
942 /* This should be verified on older screamers */
943 if (device_is_compatible(sound, "screamer")) {
944 chip->model = PMAC_SCREAMER;
945 // chip->can_byte_swap = 0; /* FIXME: check this */
947 if (device_is_compatible(sound, "burgundy")) {
948 chip->model = PMAC_BURGUNDY;
949 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
951 if (device_is_compatible(sound, "daca")) {
952 chip->model = PMAC_DACA;
953 chip->can_capture = 0; /* no capture */
954 chip->can_duplex = 0;
955 // chip->can_byte_swap = 0; /* FIXME: check this */
956 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
958 if (device_is_compatible(sound, "tumbler")) {
959 chip->model = PMAC_TUMBLER;
960 chip->can_capture = 0; /* no capture */
961 chip->can_duplex = 0;
962 // chip->can_byte_swap = 0; /* FIXME: check this */
963 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
964 chip->freq_table = tumbler_freqs;
965 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
967 if (device_is_compatible(sound, "snapper")) {
968 chip->model = PMAC_SNAPPER;
969 // chip->can_byte_swap = 0; /* FIXME: check this */
970 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
971 chip->freq_table = tumbler_freqs;
972 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
974 if (device_is_compatible(sound, "AOAKeylargo") ||
975 device_is_compatible(sound, "AOAbase") ||
976 device_is_compatible(sound, "AOAK2")) {
977 /* For now, only support very basic TAS3004 based machines with
978 * single frequency until proper i2s control is implemented
986 chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
987 chip->model = PMAC_SNAPPER;
988 chip->can_byte_swap = 0; /* FIXME: check this */
989 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
993 prop = (unsigned int *)get_property(sound, "device-id", NULL);
995 chip->device_id = *prop;
996 chip->has_iic = (find_devices("perch") != NULL);
998 /* We need the PCI device for DMA allocations, let's use a crude method
1001 macio = macio_find(chip->node, macio_unknown);
1003 printk(KERN_WARNING "snd-powermac: can't locate macio !\n");
1005 struct pci_dev *pdev = NULL;
1007 for_each_pci_dev(pdev) {
1008 struct device_node *np = pci_device_to_OF_node(pdev);
1009 if (np && np == macio->of_node) {
1015 if (chip->pdev == NULL)
1016 printk(KERN_WARNING "snd-powermac: can't locate macio PCI device !\n");
1018 detect_byte_swap(chip);
1020 /* look for a property saying what sample rates
1022 prop = (unsigned int *) get_property(sound, "sample-rates", &l);
1024 prop = (unsigned int *) get_property(sound, "output-frame-rates", &l);
1028 for (l /= sizeof(int); l > 0; --l) {
1029 unsigned int r = *prop++;
1030 /* Apple 'Fixed' format */
1033 for (i = 0; i < chip->num_freqs; ++i) {
1034 if (r == chip->freq_table[i]) {
1035 chip->freqs_ok |= (1 << i);
1041 /* assume only 44.1khz */
1049 * exported - boolean info callbacks for ease of programming
1051 int snd_pmac_boolean_stereo_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
1053 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1055 uinfo->value.integer.min = 0;
1056 uinfo->value.integer.max = 1;
1060 int snd_pmac_boolean_mono_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
1062 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1064 uinfo->value.integer.min = 0;
1065 uinfo->value.integer.max = 1;
1069 #ifdef PMAC_SUPPORT_AUTOMUTE
1073 static int pmac_auto_mute_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1075 pmac_t *chip = snd_kcontrol_chip(kcontrol);
1076 ucontrol->value.integer.value[0] = chip->auto_mute;
1080 static int pmac_auto_mute_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1082 pmac_t *chip = snd_kcontrol_chip(kcontrol);
1083 if (ucontrol->value.integer.value[0] != chip->auto_mute) {
1084 chip->auto_mute = ucontrol->value.integer.value[0];
1085 if (chip->update_automute)
1086 chip->update_automute(chip, 1);
1092 static int pmac_hp_detect_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
1094 pmac_t *chip = snd_kcontrol_chip(kcontrol);
1095 if (chip->detect_headphone)
1096 ucontrol->value.integer.value[0] = chip->detect_headphone(chip);
1098 ucontrol->value.integer.value[0] = 0;
1102 static snd_kcontrol_new_t auto_mute_controls[] __initdata = {
1103 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1104 .name = "Auto Mute Switch",
1105 .info = snd_pmac_boolean_mono_info,
1106 .get = pmac_auto_mute_get,
1107 .put = pmac_auto_mute_put,
1109 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1110 .name = "Headphone Detection",
1111 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1112 .info = snd_pmac_boolean_mono_info,
1113 .get = pmac_hp_detect_get,
1117 int __init snd_pmac_add_automute(pmac_t *chip)
1120 chip->auto_mute = 1;
1121 err = snd_ctl_add(chip->card, snd_ctl_new1(&auto_mute_controls[0], chip));
1123 printk(KERN_ERR "snd-powermac: Failed to add automute control\n");
1126 chip->hp_detect_ctl = snd_ctl_new1(&auto_mute_controls[1], chip);
1127 return snd_ctl_add(chip->card, chip->hp_detect_ctl);
1129 #endif /* PMAC_SUPPORT_AUTOMUTE */
1132 * create and detect a pmac chip record
1134 int __init snd_pmac_new(snd_card_t *card, pmac_t **chip_return)
1137 struct device_node *np;
1139 unsigned long ctrl_addr, txdma_addr, rxdma_addr;
1140 static snd_device_ops_t ops = {
1141 .dev_free = snd_pmac_dev_free,
1144 snd_runtime_check(chip_return, return -EINVAL);
1145 *chip_return = NULL;
1147 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
1152 spin_lock_init(&chip->reg_lock);
1153 chip->irq = chip->tx_irq = chip->rx_irq = -1;
1155 chip->playback.stream = SNDRV_PCM_STREAM_PLAYBACK;
1156 chip->capture.stream = SNDRV_PCM_STREAM_CAPTURE;
1158 if ((err = snd_pmac_detect(chip)) < 0)
1161 if (snd_pmac_dbdma_alloc(chip, &chip->playback.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1162 snd_pmac_dbdma_alloc(chip, &chip->capture.cmd, PMAC_MAX_FRAGS + 1) < 0 ||
1163 snd_pmac_dbdma_alloc(chip, &chip->extra_dma, 2) < 0) {
1170 if (np->parent->n_addrs < 2 || np->n_intrs < 3) {
1174 for (i = 0; i < 2; i++) {
1175 #ifndef CONFIG_PPC64
1176 static char *name[2] = { "- Control", "- DMA" };
1177 if (! request_OF_resource(np->parent, i, name[i])) {
1178 snd_printk(KERN_ERR "pmac: can't request resource %d!\n", i);
1182 chip->of_requested |= (1 << i);
1183 #endif /* CONFIG_PPC64 */
1184 ctrl_addr = np->parent->addrs[0].address;
1185 txdma_addr = np->parent->addrs[1].address;
1186 rxdma_addr = txdma_addr + 0x100;
1190 if (np->n_addrs < 3 || np->n_intrs < 3) {
1195 for (i = 0; i < 3; i++) {
1196 #ifndef CONFIG_PPC64
1197 static char *name[3] = { "- Control", "- Tx DMA", "- Rx DMA" };
1198 if (! request_OF_resource(np, i, name[i])) {
1199 snd_printk(KERN_ERR "pmac: can't request resource %d!\n", i);
1203 chip->of_requested |= (1 << i);
1204 #endif /* CONFIG_PPC64 */
1205 ctrl_addr = np->addrs[0].address;
1206 txdma_addr = np->addrs[1].address;
1207 rxdma_addr = np->addrs[2].address;
1211 chip->awacs = ioremap(ctrl_addr, 0x1000);
1212 chip->playback.dma = ioremap(txdma_addr, 0x100);
1213 chip->capture.dma = ioremap(rxdma_addr, 0x100);
1214 if (chip->model <= PMAC_BURGUNDY) {
1215 if (request_irq(np->intrs[0].line, snd_pmac_ctrl_intr, 0,
1216 "PMac", (void*)chip)) {
1217 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[0].line);
1221 chip->irq = np->intrs[0].line;
1223 if (request_irq(np->intrs[1].line, snd_pmac_tx_intr, 0,
1224 "PMac Output", (void*)chip)) {
1225 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[1].line);
1229 chip->tx_irq = np->intrs[1].line;
1230 if (request_irq(np->intrs[2].line, snd_pmac_rx_intr, 0,
1231 "PMac Input", (void*)chip)) {
1232 snd_printk(KERN_ERR "pmac: unable to grab IRQ %d\n", np->intrs[2].line);
1236 chip->rx_irq = np->intrs[2].line;
1238 snd_pmac_sound_feature(chip, 1);
1241 if (chip->model == PMAC_AWACS)
1242 out_le32(&chip->awacs->control, 0x11);
1244 /* Powerbooks have odd ways of enabling inputs such as
1245 an expansion-bay CD or sound from an internal modem
1246 or a PC-card modem. */
1247 if (chip->is_pbook_3400) {
1248 /* Enable CD and PC-card sound inputs. */
1249 /* This is done by reading from address
1250 * f301a000, + 0x10 to enable the expansion-bay
1251 * CD sound input, + 0x80 to enable the PC-card
1252 * sound input. The 0x100 enables the SCSI bus
1255 chip->latch_base = ioremap (0xf301a000, 0x1000);
1256 in_8(chip->latch_base + 0x190);
1257 } else if (chip->is_pbook_G3) {
1258 struct device_node* mio;
1259 for (mio = chip->node->parent; mio; mio = mio->parent) {
1260 if (strcmp(mio->name, "mac-io") == 0
1261 && mio->n_addrs > 0) {
1262 chip->macio_base = ioremap(mio->addrs[0].address, 0x40);
1266 /* Enable CD sound input. */
1267 /* The relevant bits for writing to this byte are 0x8f.
1268 * I haven't found out what the 0x80 bit does.
1269 * For the 0xf bits, writing 3 or 7 enables the CD
1270 * input, any other value disables it. Values
1271 * 1, 3, 5, 7 enable the microphone. Values 0, 2,
1272 * 4, 6, 8 - f enable the input from the modem.
1274 if (chip->macio_base)
1275 out_8(chip->macio_base + 0x37, 3);
1278 /* Reset dbdma channels */
1279 snd_pmac_dbdma_reset(chip);
1281 #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK)
1282 /* add sleep notifier */
1283 if (! snd_pmac_register_sleep_notifier(chip))
1284 snd_card_set_pm_callback(chip->card, snd_pmac_suspend, snd_pmac_resume, chip);
1287 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
1290 *chip_return = chip;
1295 pci_dev_put(chip->pdev);
1296 snd_pmac_free(chip);
1302 * sleep notify for powerbook
1305 #if defined(CONFIG_PM) && defined(CONFIG_PMAC_PBOOK)
1308 * Save state when going to sleep, restore it afterwards.
1311 static int snd_pmac_suspend(snd_card_t *card, pm_message_t state)
1313 pmac_t *chip = card->pm_private_data;
1314 unsigned long flags;
1317 chip->suspend(chip);
1318 snd_pcm_suspend_all(chip->pcm);
1319 spin_lock_irqsave(&chip->reg_lock, flags);
1320 snd_pmac_beep_stop(chip);
1321 spin_unlock_irqrestore(&chip->reg_lock, flags);
1323 disable_irq(chip->irq);
1324 if (chip->tx_irq >= 0)
1325 disable_irq(chip->tx_irq);
1326 if (chip->rx_irq >= 0)
1327 disable_irq(chip->rx_irq);
1328 snd_pmac_sound_feature(chip, 0);
1332 static int snd_pmac_resume(snd_card_t *card)
1334 pmac_t *chip = card->pm_private_data;
1336 snd_pmac_sound_feature(chip, 1);
1339 /* enable CD sound input */
1340 if (chip->macio_base && chip->is_pbook_G3) {
1341 out_8(chip->macio_base + 0x37, 3);
1342 } else if (chip->is_pbook_3400) {
1343 in_8(chip->latch_base + 0x190);
1346 snd_pmac_pcm_set_format(chip);
1349 enable_irq(chip->irq);
1350 if (chip->tx_irq >= 0)
1351 enable_irq(chip->tx_irq);
1352 if (chip->rx_irq >= 0)
1353 enable_irq(chip->rx_irq);
1358 /* the chip is stored statically by snd_pmac_register_sleep_notifier
1359 * because we can't have any private data for notify callback.
1361 static pmac_t *sleeping_pmac = NULL;
1363 static int snd_pmac_sleep_notify(struct pmu_sleep_notifier *self, int when)
1367 chip = sleeping_pmac;
1368 snd_runtime_check(chip, return 0);
1371 case PBOOK_SLEEP_NOW:
1372 snd_pmac_suspend(chip->card, PMSG_SUSPEND);
1375 snd_pmac_resume(chip->card);
1378 return PBOOK_SLEEP_OK;
1381 static struct pmu_sleep_notifier snd_pmac_sleep_notifier = {
1382 snd_pmac_sleep_notify, SLEEP_LEVEL_SOUND,
1385 static int __init snd_pmac_register_sleep_notifier(pmac_t *chip)
1387 /* should be protected here.. */
1388 snd_assert(! sleeping_pmac, return -EBUSY);
1389 sleeping_pmac = chip;
1390 pmu_register_sleep_notifier(&snd_pmac_sleep_notifier);
1394 static int snd_pmac_unregister_sleep_notifier(pmac_t *chip)
1396 /* should be protected here.. */
1397 snd_assert(sleeping_pmac == chip, return -ENODEV);
1398 pmu_unregister_sleep_notifier(&snd_pmac_sleep_notifier);
1399 sleeping_pmac = NULL;
1403 #endif /* CONFIG_PM && CONFIG_PMAC_PBOOK */