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p16v.c

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linux-6.19.14/sound/pci/emu10k1/p16v.c C
  1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 *  Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
  4 *  Driver p16v chips
  5 *  Version: 0.25
  6 *
  7 *  FEATURES currently supported:
  8 *    Output fixed at S32_LE, 2 channel to hw:0,0
  9 *    Rates: 44.1, 48, 96, 192.
 10 *
 11 *  Changelog:
 12 *  0.8
 13 *    Use separate card based buffer for periods table.
 14 *  0.9
 15 *    Use 2 channel output streams instead of 8 channel.
 16 *       (8 channel output streams might be good for ASIO type output)
 17 *    Corrected speaker output, so Front -> Front etc.
 18 *  0.10
 19 *    Fixed missed interrupts.
 20 *  0.11
 21 *    Add Sound card model number and names.
 22 *    Add Analog volume controls.
 23 *  0.12
 24 *    Corrected playback interrupts. Now interrupt per period, instead of half period.
 25 *  0.13
 26 *    Use single trigger for multichannel.
 27 *  0.14
 28 *    Mic capture now works at fixed: S32_LE, 96000Hz, Stereo.
 29 *  0.15
 30 *    Force buffer_size / period_size == INTEGER.
 31 *  0.16
 32 *    Update p16v.c to work with changed alsa api.
 33 *  0.17
 34 *    Update p16v.c to work with changed alsa api. Removed boot_devs.
 35 *  0.18
 36 *    Merging with snd-emu10k1 driver.
 37 *  0.19
 38 *    One stereo channel at 24bit now works.
 39 *  0.20
 40 *    Added better register defines.
 41 *  0.21
 42 *    Integrated with snd-emu10k1 driver.
 43 *  0.22
 44 *    Removed #if 0 ... #endif
 45 *  0.23
 46 *    Implement different capture rates.
 47 *  0.24
 48 *    Implement different capture source channels.
 49 *    e.g. When HD Capture source is set to SPDIF,
 50 *    setting HD Capture channel to 0 captures from CDROM digital input.
 51 *    setting HD Capture channel to 1 captures from SPDIF in.
 52 *  0.25
 53 *    Include capture buffer sizes.
 54 *
 55 *  BUGS:
 56 *    Some stability problems when unloading the snd-p16v kernel module.
 57 *    --
 58 *
 59 *  TODO:
 60 *    SPDIF out.
 61 *    Find out how to change capture sample rates. E.g. To record SPDIF at 48000Hz.
 62 *    Currently capture fixed at 48000Hz.
 63 *
 64 *    --
 65 *  GENERAL INFO:
 66 *    Model: SB0240
 67 *    P16V Chip: CA0151-DBS
 68 *    Audigy 2 Chip: CA0102-IAT
 69 *    AC97 Codec: STAC 9721
 70 *    ADC: Philips 1361T (Stereo 24bit)
 71 *    DAC: CS4382-K (8-channel, 24bit, 192Khz)
 72 *
 73 *  This code was initially based on code from ALSA's emu10k1x.c which is:
 74 *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
 75 */
 76#include <linux/delay.h>
 77#include <linux/init.h>
 78#include <linux/interrupt.h>
 79#include <linux/pci.h>
 80#include <linux/slab.h>
 81#include <linux/vmalloc.h>
 82#include <linux/moduleparam.h>
 83#include <sound/core.h>
 84#include <sound/initval.h>
 85#include <sound/pcm.h>
 86#include <sound/ac97_codec.h>
 87#include <sound/info.h>
 88#include <sound/tlv.h>
 89#include <sound/emu10k1.h>
 90#include "p16v.h"
 91
 92#define SET_CHANNEL 0  /* Testing channel outputs 0=Front, 1=Center/LFE, 2=Unknown, 3=Rear */
 93#define PCM_FRONT_CHANNEL 0
 94#define PCM_REAR_CHANNEL 1
 95#define PCM_CENTER_LFE_CHANNEL 2
 96#define PCM_SIDE_CHANNEL 3
 97#define CONTROL_FRONT_CHANNEL 0
 98#define CONTROL_REAR_CHANNEL 3
 99#define CONTROL_CENTER_LFE_CHANNEL 1
100#define CONTROL_SIDE_CHANNEL 2
101
102/* Card IDs:
103 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2002 -> Audigy2 ZS 7.1 Model:SB0350
104 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1007 -> Audigy2 6.1    Model:SB0240
105 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:1002 -> Audigy2 Platinum  Model:SB msb0240230009266
106 * Class 0401: 1102:0004 (rev 04) Subsystem: 1102:2007 -> Audigy4 Pro Model:SB0380 M1SB0380472001901E
107 *
108 */
109
110 /* hardware definition */
111static const struct snd_pcm_hardware snd_p16v_playback_hw = {
112	.info =			SNDRV_PCM_INFO_MMAP | 
113				SNDRV_PCM_INFO_INTERLEAVED |
114				SNDRV_PCM_INFO_BLOCK_TRANSFER |
115				SNDRV_PCM_INFO_RESUME |
116				SNDRV_PCM_INFO_MMAP_VALID |
117				SNDRV_PCM_INFO_SYNC_START,
118	.formats =		SNDRV_PCM_FMTBIT_S32_LE, /* Only supports 24-bit samples padded to 32 bits. */
119	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
120	.rate_min =		44100,
121	.rate_max =		192000,
122	.channels_min =		8, 
123	.channels_max =		8,
124	.buffer_bytes_max =	((65536 - 64) * 8),
125	.period_bytes_min =	64,
126	.period_bytes_max =	(65536 - 64),
127	.periods_min =		2,
128	.periods_max =		8,
129	.fifo_size =		0,
130};
131
132static const struct snd_pcm_hardware snd_p16v_capture_hw = {
133	.info =			(SNDRV_PCM_INFO_MMAP |
134				 SNDRV_PCM_INFO_INTERLEAVED |
135				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
136				 SNDRV_PCM_INFO_RESUME |
137				 SNDRV_PCM_INFO_MMAP_VALID),
138	.formats =		SNDRV_PCM_FMTBIT_S32_LE,
139	.rates =		SNDRV_PCM_RATE_192000 | SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100, 
140	.rate_min =		44100,
141	.rate_max =		192000,
142	.channels_min =		2,
143	.channels_max =		2,
144	.buffer_bytes_max =	(65536 - 64),
145	.period_bytes_min =	64,
146	.period_bytes_max =	(65536 - 128) >> 1,  /* size has to be N*64 bytes */
147	.periods_min =		2,
148	.periods_max =		2,
149	.fifo_size =		0,
150};
151
152/* open_playback callback */
153static int snd_p16v_pcm_open_playback_channel(struct snd_pcm_substream *substream, int channel_id)
154{
155	struct snd_pcm_runtime *runtime = substream->runtime;
156	int err;
157
158	/*
159	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
160		   substream->pcm->device, channel_id);
161	*/
162  
163	runtime->hw = snd_p16v_playback_hw;
164
165#if 0 /* debug */
166	dev_dbg(emu->card->dev,
167		   "p16v: open channel_id=%d, channel=%p, use=0x%x\n",
168		   channel_id, channel, channel->use);
169	dev_dbg(emu->card->dev, "open:channel_id=%d, chip=%p, channel=%p\n",
170	       channel_id, chip, channel);
171#endif /* debug */
172	/* channel->interrupt = snd_p16v_pcm_channel_interrupt; */
173	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
174	if (err < 0)
175                return err;
176
177	return 0;
178}
179
180/* open_capture callback */
181static int snd_p16v_pcm_open_capture_channel(struct snd_pcm_substream *substream, int channel_id)
182{
183	struct snd_pcm_runtime *runtime = substream->runtime;
184	int err;
185
186	/*
187	dev_dbg(emu->card->dev, "epcm device=%d, channel_id=%d\n",
188		   substream->pcm->device, channel_id);
189	*/
190  
191	runtime->hw = snd_p16v_capture_hw;
192
193	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
194	if (err < 0)
195		return err;
196
197	return 0;
198}
199
200
201/* close callback */
202static int snd_p16v_pcm_close_playback(struct snd_pcm_substream *substream)
203{
204	return 0;
205}
206
207/* close callback */
208static int snd_p16v_pcm_close_capture(struct snd_pcm_substream *substream)
209{
210	return 0;
211}
212
213static int snd_p16v_pcm_open_playback_front(struct snd_pcm_substream *substream)
214{
215	return snd_p16v_pcm_open_playback_channel(substream, PCM_FRONT_CHANNEL);
216}
217
218static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
219{
220	// Only using channel 0 for now, but the card has 2 channels.
221	return snd_p16v_pcm_open_capture_channel(substream, 0);
222}
223
224static int snd_p16v_pcm_ioctl_playback(struct snd_pcm_substream *substream,
225				       unsigned int cmd, void *arg)
226{
227	if (cmd == SNDRV_PCM_IOCTL1_SYNC_ID) {
228		static const unsigned char id[4] = { 'P', '1', '6', 'V' };
229		snd_pcm_set_sync_per_card(substream, arg, id, 4);
230		return 0;
231	}
232	return snd_pcm_lib_ioctl(substream, cmd, arg);
233}
234
235/* prepare playback callback */
236static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
237{
238	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
239	struct snd_pcm_runtime *runtime = substream->runtime;
240	int channel = substream->pcm->device - emu->p16v_device_offset;
241	u32 *table_base = (u32 *)(emu->p16v_buffer->area+(8*16*channel));
242	u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size);
243	int i;
244	u32 tmp;
245	
246#if 0 /* debug */
247	dev_dbg(emu->card->dev,
248		"prepare:channel_number=%d, rate=%d, "
249		   "format=0x%x, channels=%d, buffer_size=%ld, "
250		   "period_size=%ld, periods=%u, frames_to_bytes=%d\n",
251		   channel, runtime->rate, runtime->format, runtime->channels,
252		   runtime->buffer_size, runtime->period_size,
253		   runtime->periods, frames_to_bytes(runtime, 1));
254	dev_dbg(emu->card->dev,
255		"dma_addr=%x, dma_area=%p, table_base=%p\n",
256		   runtime->dma_addr, runtime->dma_area, table_base);
257	dev_dbg(emu->card->dev,
258		"dma_addr=%x, dma_area=%p, dma_bytes(size)=%x\n",
259		   emu->p16v_buffer->addr, emu->p16v_buffer->area,
260		   emu->p16v_buffer->bytes);
261#endif /* debug */
262	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, channel);
263	tmp &= ~(A_SPDIF_RATE_MASK | A_EHC_SRC48_MASK);
264        switch (runtime->rate) {
265	case 44100:
266	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
267				tmp | A_SPDIF_44100 | A_EHC_SRC48_44);
268	  break;
269	case 96000:
270	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
271				tmp | A_SPDIF_96000 | A_EHC_SRC48_96);
272	  break;
273	case 192000:
274	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
275				tmp | A_SPDIF_192000 | A_EHC_SRC48_192);
276	  break;
277	case 48000:
278	default:
279	  snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, channel,
280				tmp | A_SPDIF_48000 | A_EHC_SRC48_BYPASS);
281	  break;
282	}
283	/* FIXME: Check emu->buffer.size before actually writing to it. */
284	for(i = 0; i < runtime->periods; i++) {
285		table_base[i*2]=runtime->dma_addr+(i*period_size_bytes);
286		table_base[(i*2)+1]=period_size_bytes<<16;
287	}
288 
289	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_ADDR, channel, emu->p16v_buffer->addr+(8*16*channel));
290	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_SIZE, channel, (runtime->periods - 1) << 19);
291	snd_emu10k1_ptr20_write(emu, PLAYBACK_LIST_PTR, channel, 0);
292	snd_emu10k1_ptr20_write(emu, PLAYBACK_DMA_ADDR, channel, runtime->dma_addr);
293	//snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, frames_to_bytes(runtime, runtime->period_size)<<16); // buffer size in bytes
294	snd_emu10k1_ptr20_write(emu, PLAYBACK_PERIOD_SIZE, channel, 0); // buffer size in bytes
295	snd_emu10k1_ptr20_write(emu, PLAYBACK_POINTER, channel, 0);
296	snd_emu10k1_ptr20_write(emu, PLAYBACK_FIFO_END_ADDRESS, channel, 0);
297	snd_emu10k1_ptr20_write(emu, PLAYBACK_FIFO_POINTER, channel, 0);
298
299	return 0;
300}
301
302/* prepare capture callback */
303static int snd_p16v_pcm_prepare_capture(struct snd_pcm_substream *substream)
304{
305	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
306	struct snd_pcm_runtime *runtime = substream->runtime;
307	int channel = substream->pcm->device - emu->p16v_device_offset;
308
309	/*
310	dev_dbg(emu->card->dev, "prepare capture:channel_number=%d, rate=%d, "
311	       "format=0x%x, channels=%d, buffer_size=%ld, period_size=%ld, "
312	       "frames_to_bytes=%d\n",
313	       channel, runtime->rate, runtime->format, runtime->channels,
314	       runtime->buffer_size, runtime->period_size,
315	       frames_to_bytes(runtime, 1));
316	*/
317        switch (runtime->rate) {
318	case 44100:
319	  snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_44100);
320	  break;
321	case 96000:
322	  snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_96000);
323	  break;
324	case 192000:
325	  snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_192000);
326	  break;
327	case 48000:
328	default:
329	  snd_emu10k1_ptr_write(emu, A_I2S_CAPTURE_RATE, channel, A_I2S_CAPTURE_48000);
330	  break;
331	}
332	/* FIXME: Check emu->buffer.size before actually writing to it. */
333	snd_emu10k1_ptr20_write(emu, CAPTURE_FIFO_POINTER, channel, 0);
334	snd_emu10k1_ptr20_write(emu, CAPTURE_DMA_ADDR, channel, runtime->dma_addr);
335	snd_emu10k1_ptr20_write(emu, CAPTURE_BUFFER_SIZE, channel, frames_to_bytes(runtime, runtime->buffer_size) << 16); // buffer size in bytes
336	snd_emu10k1_ptr20_write(emu, CAPTURE_POINTER, channel, 0);
337	//snd_emu10k1_ptr20_write(emu, CAPTURE_SOURCE, 0x0, 0x333300e4); /* Select MIC or Line in */
338	//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) | (0x110000<<channel));
339
340	return 0;
341}
342
343static void snd_p16v_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
344{
345	unsigned int enable;
346
347	guard(spinlock_irqsave)(&emu->emu_lock);
348	enable = inl(emu->port + INTE2) | intrenb;
349	outl(enable, emu->port + INTE2);
350}
351
352static void snd_p16v_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
353{
354	unsigned int disable;
355
356	guard(spinlock_irqsave)(&emu->emu_lock);
357	disable = inl(emu->port + INTE2) & (~intrenb);
358	outl(disable, emu->port + INTE2);
359}
360
361static void snd_p16v_interrupt(struct snd_emu10k1 *emu)
362{
363	unsigned int status;
364
365	while ((status = inl(emu->port + IPR2)) != 0) {
366		u32 mask = INTE2_PLAYBACK_CH_0_LOOP;  /* Full Loop */
367
368		/* dev_dbg(emu->card->dev, "p16v status=0x%x\n", status); */
369		if (status & mask) {
370			struct snd_pcm_substream *substream =
371					emu->pcm_p16v->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
372			struct snd_pcm_runtime *runtime = substream->runtime;
373
374			if (runtime && runtime->private_data) {
375				snd_pcm_period_elapsed(substream);
376			} else {
377				dev_err(emu->card->dev,
378					"p16v: status: 0x%08x, mask=0x%08x\n",
379					status, mask);
380			}
381		}
382		if (status & 0x110000) {
383			struct snd_pcm_substream *substream =
384					emu->pcm_p16v->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
385			struct snd_pcm_runtime *runtime = substream->runtime;
386
387			/* dev_info(emu->card->dev, "capture int found\n"); */
388			if (runtime && runtime->private_data) {
389				/* dev_info(emu->card->dev, "capture period_elapsed\n"); */
390				snd_pcm_period_elapsed(substream);
391			}
392		}
393		outl(status, emu->port + IPR2); /* ack all */
394	}
395}
396
397/* trigger_playback callback */
398static int snd_p16v_pcm_trigger_playback(struct snd_pcm_substream *substream,
399				    int cmd)
400{
401	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
402	struct snd_pcm_runtime *runtime;
403	int channel;
404	int result = 0;
405        struct snd_pcm_substream *s;
406	u32 basic = 0;
407	u32 inte = 0;
408	int running = 0;
409
410	switch (cmd) {
411	case SNDRV_PCM_TRIGGER_START:
412		running=1;
413		break;
414	case SNDRV_PCM_TRIGGER_STOP:
415	default:
416		running = 0;
417		break;
418	}
419        snd_pcm_group_for_each_entry(s, substream) {
420		if (snd_pcm_substream_chip(s) != emu ||
421		    s->stream != SNDRV_PCM_STREAM_PLAYBACK)
422			continue;
423		runtime = s->runtime;
424		channel = substream->pcm->device-emu->p16v_device_offset;
425		/* dev_dbg(emu->card->dev, "p16v channel=%d\n", channel); */
426		runtime->private_data = (void *)(ptrdiff_t)running;
427		basic |= (0x1<<channel);
428		inte |= (INTE2_PLAYBACK_CH_0_LOOP<<channel);
429                snd_pcm_trigger_done(s, substream);
430        }
431	/* dev_dbg(emu->card->dev, "basic=0x%x, inte=0x%x\n", basic, inte); */
432
433	switch (cmd) {
434	case SNDRV_PCM_TRIGGER_START:
435		snd_p16v_intr_enable(emu, inte);
436		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)| (basic));
437		break;
438	case SNDRV_PCM_TRIGGER_STOP:
439		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(basic));
440		snd_p16v_intr_disable(emu, inte);
441		break;
442	default:
443		result = -EINVAL;
444		break;
445	}
446	return result;
447}
448
449/* trigger_capture callback */
450static int snd_p16v_pcm_trigger_capture(struct snd_pcm_substream *substream,
451                                   int cmd)
452{
453	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
454	struct snd_pcm_runtime *runtime = substream->runtime;
455	int channel = 0;
456	int result = 0;
457	u32 inte = INTE2_CAPTURE_CH_0_LOOP | INTE2_CAPTURE_CH_0_HALF_LOOP;
458
459	switch (cmd) {
460	case SNDRV_PCM_TRIGGER_START:
461		snd_p16v_intr_enable(emu, inte);
462		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0)|(0x100<<channel));
463		runtime->private_data = (void *)1;
464		break;
465	case SNDRV_PCM_TRIGGER_STOP:
466		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & ~(0x100<<channel));
467		snd_p16v_intr_disable(emu, inte);
468		//snd_emu10k1_ptr20_write(emu, EXTENDED_INT_MASK, 0, snd_emu10k1_ptr20_read(emu, EXTENDED_INT_MASK, 0) & ~(0x110000<<channel));
469		runtime->private_data = NULL;
470		break;
471	default:
472		result = -EINVAL;
473		break;
474	}
475	return result;
476}
477
478/* pointer_playback callback */
479static snd_pcm_uframes_t
480snd_p16v_pcm_pointer_playback(struct snd_pcm_substream *substream)
481{
482	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
483	struct snd_pcm_runtime *runtime = substream->runtime;
484	snd_pcm_uframes_t ptr, ptr1, ptr2,ptr3,ptr4 = 0;
485	int channel = substream->pcm->device - emu->p16v_device_offset;
486
487	if (!runtime->private_data)
488		return 0;
489
490	ptr3 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
491	ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
492	ptr4 = snd_emu10k1_ptr20_read(emu, PLAYBACK_LIST_PTR, channel);
493	if (ptr3 != ptr4) ptr1 = snd_emu10k1_ptr20_read(emu, PLAYBACK_POINTER, channel);
494	ptr2 = bytes_to_frames(runtime, ptr1);
495	ptr2+= (ptr4 >> 3) * runtime->period_size;
496	ptr=ptr2;
497        if (ptr >= runtime->buffer_size)
498		ptr -= runtime->buffer_size;
499
500	return ptr;
501}
502
503/* pointer_capture callback */
504static snd_pcm_uframes_t
505snd_p16v_pcm_pointer_capture(struct snd_pcm_substream *substream)
506{
507	struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream);
508	struct snd_pcm_runtime *runtime = substream->runtime;
509	snd_pcm_uframes_t ptr, ptr1, ptr2 = 0;
510	int channel = 0;
511
512	if (!runtime->private_data)
513		return 0;
514
515	ptr1 = snd_emu10k1_ptr20_read(emu, CAPTURE_POINTER, channel);
516	ptr2 = bytes_to_frames(runtime, ptr1);
517	ptr=ptr2;
518	if (ptr >= runtime->buffer_size) {
519		ptr -= runtime->buffer_size;
520		dev_warn(emu->card->dev, "buffer capture limited!\n");
521	}
522	/*
523	dev_dbg(emu->card->dev, "ptr1 = 0x%lx, ptr2=0x%lx, ptr=0x%lx, "
524	       "buffer_size = 0x%x, period_size = 0x%x, bits=%d, rate=%d\n",
525	       ptr1, ptr2, ptr, (int)runtime->buffer_size,
526	       (int)runtime->period_size, (int)runtime->frame_bits,
527	       (int)runtime->rate);
528	*/
529	return ptr;
530}
531
532/* operators */
533static const struct snd_pcm_ops snd_p16v_playback_front_ops = {
534	.open =        snd_p16v_pcm_open_playback_front,
535	.close =       snd_p16v_pcm_close_playback,
536	.ioctl =       snd_p16v_pcm_ioctl_playback,
537	.prepare =     snd_p16v_pcm_prepare_playback,
538	.trigger =     snd_p16v_pcm_trigger_playback,
539	.pointer =     snd_p16v_pcm_pointer_playback,
540};
541
542static const struct snd_pcm_ops snd_p16v_capture_ops = {
543	.open =        snd_p16v_pcm_open_capture,
544	.close =       snd_p16v_pcm_close_capture,
545	.prepare =     snd_p16v_pcm_prepare_capture,
546	.trigger =     snd_p16v_pcm_trigger_capture,
547	.pointer =     snd_p16v_pcm_pointer_capture,
548};
549
550int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
551{
552	struct snd_pcm *pcm;
553	struct snd_pcm_substream *substream;
554	int err;
555        int capture=1;
556  
557	/* dev_dbg(emu->card->dev, "snd_p16v_pcm called. device=%d\n", device); */
558	emu->p16v_device_offset = device;
559
560	err = snd_pcm_new(emu->card, "p16v", device, 1, capture, &pcm);
561	if (err < 0)
562		return err;
563  
564	pcm->private_data = emu;
565	// Single playback 8 channel device.
566	// Single capture 2 channel device.
567	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_p16v_playback_front_ops);
568	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_p16v_capture_ops);
569
570	pcm->info_flags = 0;
571	pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
572	strscpy(pcm->name, "p16v");
573	emu->pcm_p16v = pcm;
574	emu->p16v_interrupt = snd_p16v_interrupt;
575
576	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
577	    substream; 
578	    substream = substream->next) {
579		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
580					   &emu->pci->dev,
581					   (65536 - 64) * 8,
582					   (65536 - 64) * 8);
583		/*
584		dev_dbg(emu->card->dev,
585			   "preallocate playback substream: err=%d\n", err);
586		*/
587	}
588
589	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
590	      substream; 
591	      substream = substream->next) {
592		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
593					   &emu->pci->dev,
594					   65536 - 64, 65536 - 64);
595		/*
596		dev_dbg(emu->card->dev,
597			   "preallocate capture substream: err=%d\n", err);
598		*/
599	}
600  
601	return 0;
602}
603
604static int snd_p16v_volume_info(struct snd_kcontrol *kcontrol,
605				struct snd_ctl_elem_info *uinfo)
606{
607        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
608        uinfo->count = 2;
609        uinfo->value.integer.min = 0;
610        uinfo->value.integer.max = 255;
611        return 0;
612}
613
614static int snd_p16v_volume_get(struct snd_kcontrol *kcontrol,
615			       struct snd_ctl_elem_value *ucontrol)
616{
617        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
618	int high_low = (kcontrol->private_value >> 8) & 0xff;
619	int reg = kcontrol->private_value & 0xff;
620	u32 value;
621
622	value = snd_emu10k1_ptr20_read(emu, reg, high_low);
623	if (high_low) {
624		ucontrol->value.integer.value[0] = 0xff - ((value >> 24) & 0xff); /* Left */
625		ucontrol->value.integer.value[1] = 0xff - ((value >> 16) & 0xff); /* Right */
626	} else {
627		ucontrol->value.integer.value[0] = 0xff - ((value >> 8) & 0xff); /* Left */
628		ucontrol->value.integer.value[1] = 0xff - ((value >> 0) & 0xff); /* Right */
629	}
630	return 0;
631}
632
633static int snd_p16v_volume_put(struct snd_kcontrol *kcontrol,
634			       struct snd_ctl_elem_value *ucontrol)
635{
636        struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
637	int high_low = (kcontrol->private_value >> 8) & 0xff;
638	int reg = kcontrol->private_value & 0xff;
639        u32 value, oval;
640
641	oval = value = snd_emu10k1_ptr20_read(emu, reg, 0);
642	if (high_low == 1) {
643		value &= 0xffff;
644		value |= ((0xff - ucontrol->value.integer.value[0]) << 24) |
645			((0xff - ucontrol->value.integer.value[1]) << 16);
646	} else {
647		value &= 0xffff0000;
648		value |= ((0xff - ucontrol->value.integer.value[0]) << 8) |
649			((0xff - ucontrol->value.integer.value[1]) );
650	}
651	if (value != oval) {
652		snd_emu10k1_ptr20_write(emu, reg, 0, value);
653		return 1;
654	}
655	return 0;
656}
657
658static int snd_p16v_capture_source_info(struct snd_kcontrol *kcontrol,
659					struct snd_ctl_elem_info *uinfo)
660{
661	static const char * const texts[8] = {
662		"SPDIF", "I2S", "SRC48", "SRCMulti_SPDIF", "SRCMulti_I2S",
663		"CDIF", "FX", "AC97"
664	};
665
666	return snd_ctl_enum_info(uinfo, 1, 8, texts);
667}
668
669static int snd_p16v_capture_source_get(struct snd_kcontrol *kcontrol,
670					struct snd_ctl_elem_value *ucontrol)
671{
672	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
673
674	ucontrol->value.enumerated.item[0] = emu->p16v_capture_source;
675	return 0;
676}
677
678static int snd_p16v_capture_source_put(struct snd_kcontrol *kcontrol,
679					struct snd_ctl_elem_value *ucontrol)
680{
681	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
682	unsigned int val;
683	int change = 0;
684	u32 mask;
685	u32 source;
686
687	val = ucontrol->value.enumerated.item[0] ;
688	if (val > 7)
689		return -EINVAL;
690	change = (emu->p16v_capture_source != val);
691	if (change) {
692		emu->p16v_capture_source = val;
693		source = (val << 28) | (val << 24) | (val << 20) | (val << 16);
694		mask = snd_emu10k1_ptr20_read(emu, BASIC_INTERRUPT, 0) & 0xffff;
695		snd_emu10k1_ptr20_write(emu, BASIC_INTERRUPT, 0, source | mask);
696	}
697        return change;
698}
699
700static int snd_p16v_capture_channel_info(struct snd_kcontrol *kcontrol,
701					 struct snd_ctl_elem_info *uinfo)
702{
703	static const char * const texts[4] = { "0", "1", "2", "3", };
704
705	return snd_ctl_enum_info(uinfo, 1, 4, texts);
706}
707
708static int snd_p16v_capture_channel_get(struct snd_kcontrol *kcontrol,
709					struct snd_ctl_elem_value *ucontrol)
710{
711	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
712
713	ucontrol->value.enumerated.item[0] = emu->p16v_capture_channel;
714	return 0;
715}
716
717static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
718					struct snd_ctl_elem_value *ucontrol)
719{
720	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
721	unsigned int val;
722	int change = 0;
723	u32 tmp;
724
725	val = ucontrol->value.enumerated.item[0] ;
726	if (val > 3)
727		return -EINVAL;
728	change = (emu->p16v_capture_channel != val);
729	if (change) {
730		emu->p16v_capture_channel = val;
731		tmp = snd_emu10k1_ptr20_read(emu, CAPTURE_P16V_SOURCE, 0) & 0xfffc;
732		snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, tmp | val);
733	}
734        return change;
735}
736static const DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
737
738#define P16V_VOL(xname,xreg,xhl) { \
739	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
740        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |             \
741                  SNDRV_CTL_ELEM_ACCESS_TLV_READ,               \
742	.info = snd_p16v_volume_info, \
743	.get = snd_p16v_volume_get, \
744	.put = snd_p16v_volume_put, \
745	.tlv = { .p = snd_p16v_db_scale1 },	\
746	.private_value = ((xreg) | ((xhl) << 8)) \
747}
748
749static const struct snd_kcontrol_new p16v_mixer_controls[] = {
750	P16V_VOL("HD Analog Front Playback Volume", PLAYBACK_VOLUME_MIXER9, 0),
751	P16V_VOL("HD Analog Rear Playback Volume", PLAYBACK_VOLUME_MIXER10, 1),
752	P16V_VOL("HD Analog Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER9, 1),
753	P16V_VOL("HD Analog Side Playback Volume", PLAYBACK_VOLUME_MIXER10, 0),
754	P16V_VOL("HD SPDIF Front Playback Volume", PLAYBACK_VOLUME_MIXER7, 0),
755	P16V_VOL("HD SPDIF Rear Playback Volume", PLAYBACK_VOLUME_MIXER8, 1),
756	P16V_VOL("HD SPDIF Center/LFE Playback Volume", PLAYBACK_VOLUME_MIXER7, 1),
757	P16V_VOL("HD SPDIF Side Playback Volume", PLAYBACK_VOLUME_MIXER8, 0),
758	{
759		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
760		.name =		"HD source Capture",
761		.info =		snd_p16v_capture_source_info,
762		.get =		snd_p16v_capture_source_get,
763		.put =		snd_p16v_capture_source_put
764	},
765	{
766		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
767		.name =		"HD channel Capture",
768		.info =		snd_p16v_capture_channel_info,
769		.get =		snd_p16v_capture_channel_get,
770		.put =		snd_p16v_capture_channel_put
771	},
772};
773
774
775int snd_p16v_mixer(struct snd_emu10k1 *emu)
776{
777	int i, err;
778        struct snd_card *card = emu->card;
779
780	for (i = 0; i < ARRAY_SIZE(p16v_mixer_controls); i++) {
781		err = snd_ctl_add(card, snd_ctl_new1(&p16v_mixer_controls[i], emu));
782		if (err < 0)
783			return err;
784	}
785        return 0;
786}
787
788#ifdef CONFIG_PM_SLEEP
789
790#define NUM_CHS	1	/* up to 4, but only first channel is used */
791
792int snd_p16v_alloc_pm_buffer(struct snd_emu10k1 *emu)
793{
794	emu->p16v_saved = vmalloc(array_size(NUM_CHS * 4, 0x80));
795	if (! emu->p16v_saved)
796		return -ENOMEM;
797	return 0;
798}
799
800void snd_p16v_free_pm_buffer(struct snd_emu10k1 *emu)
801{
802	vfree(emu->p16v_saved);
803}
804
805void snd_p16v_suspend(struct snd_emu10k1 *emu)
806{
807	int i, ch;
808	unsigned int *val;
809
810	val = emu->p16v_saved;
811	for (ch = 0; ch < NUM_CHS; ch++)
812		for (i = 0; i < 0x80; i++, val++)
813			*val = snd_emu10k1_ptr20_read(emu, i, ch);
814}
815
816void snd_p16v_resume(struct snd_emu10k1 *emu)
817{
818	int i, ch;
819	unsigned int *val;
820
821	val = emu->p16v_saved;
822	for (ch = 0; ch < NUM_CHS; ch++)
823		for (i = 0; i < 0x80; i++, val++)
824			snd_emu10k1_ptr20_write(emu, i, ch, *val);
825}
826#endif
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