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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Jaroslav Kyselac1017a42007-10-15 09:50:19 +02002 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Uros Bizjak <uros@kss-loka.si>
4 *
5 * Routines for control of 8-bit SoundBlaster cards and clones
6 * Please note: I don't have access to old SB8 soundcards.
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 * --
24 *
25 * Thu Apr 29 20:36:17 BST 1999 George David Morrison <gdm@gedamo.demon.co.uk>
26 * DSP can't respond to commands whilst in "high speed" mode. Caused
27 * glitching during playback. Fixed.
28 *
29 * Wed Jul 12 22:02:55 CEST 2000 Uros Bizjak <uros@kss-loka.si>
30 * Cleaned up and rewrote lowlevel routines.
31 */
32
Takashi Iwai6cbbfe12015-01-28 16:49:33 +010033#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <asm/dma.h>
35#include <linux/init.h>
36#include <linux/time.h>
Paul Gortmakerda155d52011-07-15 12:38:28 -040037#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#include <sound/core.h>
39#include <sound/sb.h>
40
Jaroslav Kyselac1017a42007-10-15 09:50:19 +020041MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Uros Bizjak <uros@kss-loka.si>");
Linus Torvalds1da177e2005-04-16 15:20:36 -070042MODULE_DESCRIPTION("Routines for control of 8-bit SoundBlaster cards and clones");
43MODULE_LICENSE("GPL");
44
45#define SB8_CLOCK 1000000
46#define SB8_DEN(v) ((SB8_CLOCK + (v) / 2) / (v))
47#define SB8_RATE(v) (SB8_CLOCK / SB8_DEN(v))
48
Takashi Iwai029d64b2005-11-17 14:34:36 +010049static struct snd_ratnum clock = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 .num = SB8_CLOCK,
51 .den_min = 1,
52 .den_max = 256,
53 .den_step = 1,
54};
55
Takashi Iwai029d64b2005-11-17 14:34:36 +010056static struct snd_pcm_hw_constraint_ratnums hw_constraints_clock = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 .nrats = 1,
58 .rats = &clock,
59};
60
Takashi Iwai029d64b2005-11-17 14:34:36 +010061static struct snd_ratnum stereo_clocks[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 {
63 .num = SB8_CLOCK,
64 .den_min = SB8_DEN(22050),
65 .den_max = SB8_DEN(22050),
66 .den_step = 1,
67 },
68 {
69 .num = SB8_CLOCK,
70 .den_min = SB8_DEN(11025),
71 .den_max = SB8_DEN(11025),
72 .den_step = 1,
73 }
74};
75
Takashi Iwai029d64b2005-11-17 14:34:36 +010076static int snd_sb8_hw_constraint_rate_channels(struct snd_pcm_hw_params *params,
77 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -070078{
Takashi Iwai029d64b2005-11-17 14:34:36 +010079 struct snd_interval *c = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 if (c->min > 1) {
81 unsigned int num = 0, den = 0;
82 int err = snd_interval_ratnum(hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE),
83 2, stereo_clocks, &num, &den);
84 if (err >= 0 && den) {
85 params->rate_num = num;
86 params->rate_den = den;
87 }
88 return err;
89 }
90 return 0;
91}
92
Takashi Iwai029d64b2005-11-17 14:34:36 +010093static int snd_sb8_hw_constraint_channels_rate(struct snd_pcm_hw_params *params,
94 struct snd_pcm_hw_rule *rule)
Linus Torvalds1da177e2005-04-16 15:20:36 -070095{
Takashi Iwai029d64b2005-11-17 14:34:36 +010096 struct snd_interval *r = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 if (r->min > SB8_RATE(22050) || r->max <= SB8_RATE(11025)) {
Takashi Iwai029d64b2005-11-17 14:34:36 +010098 struct snd_interval t = { .min = 1, .max = 1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 return snd_interval_refine(hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS), &t);
100 }
101 return 0;
102}
103
Takashi Iwai029d64b2005-11-17 14:34:36 +0100104static int snd_sb8_playback_prepare(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105{
106 unsigned long flags;
Takashi Iwai029d64b2005-11-17 14:34:36 +0100107 struct snd_sb *chip = snd_pcm_substream_chip(substream);
108 struct snd_pcm_runtime *runtime = substream->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 unsigned int mixreg, rate, size, count;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100110 unsigned char format;
111 unsigned char stereo = runtime->channels > 1;
112 int dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113
114 rate = runtime->rate;
115 switch (chip->hardware) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100116 case SB_HW_JAZZ16:
117 if (runtime->format == SNDRV_PCM_FORMAT_S16_LE) {
118 if (chip->mode & SB_MODE_CAPTURE_16)
119 return -EBUSY;
120 else
121 chip->mode |= SB_MODE_PLAYBACK_16;
122 }
123 chip->playback_format = SB_DSP_LO_OUTPUT_AUTO;
124 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 case SB_HW_PRO:
126 if (runtime->channels > 1) {
Takashi Iwai622207d2008-08-08 17:11:45 +0200127 if (snd_BUG_ON(rate != SB8_RATE(11025) &&
128 rate != SB8_RATE(22050)))
129 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 chip->playback_format = SB_DSP_HI_OUTPUT_AUTO;
131 break;
132 }
133 /* fallthru */
134 case SB_HW_201:
135 if (rate > 23000) {
136 chip->playback_format = SB_DSP_HI_OUTPUT_AUTO;
137 break;
138 }
139 /* fallthru */
140 case SB_HW_20:
141 chip->playback_format = SB_DSP_LO_OUTPUT_AUTO;
142 break;
143 case SB_HW_10:
144 chip->playback_format = SB_DSP_OUTPUT;
145 break;
146 default:
147 return -EINVAL;
148 }
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100149 if (chip->mode & SB_MODE_PLAYBACK_16) {
150 format = stereo ? SB_DSP_STEREO_16BIT : SB_DSP_MONO_16BIT;
151 dma = chip->dma16;
152 } else {
153 format = stereo ? SB_DSP_STEREO_8BIT : SB_DSP_MONO_8BIT;
154 chip->mode |= SB_MODE_PLAYBACK_8;
155 dma = chip->dma8;
156 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 size = chip->p_dma_size = snd_pcm_lib_buffer_bytes(substream);
158 count = chip->p_period_size = snd_pcm_lib_period_bytes(substream);
159 spin_lock_irqsave(&chip->reg_lock, flags);
160 snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100161 if (chip->hardware == SB_HW_JAZZ16)
162 snd_sbdsp_command(chip, format);
163 else if (stereo) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 /* set playback stereo mode */
165 spin_lock(&chip->mixer_lock);
166 mixreg = snd_sbmixer_read(chip, SB_DSP_STEREO_SW);
167 snd_sbmixer_write(chip, SB_DSP_STEREO_SW, mixreg | 0x02);
168 spin_unlock(&chip->mixer_lock);
169
170 /* Soundblaster hardware programming reference guide, 3-23 */
171 snd_sbdsp_command(chip, SB_DSP_DMA8_EXIT);
172 runtime->dma_area[0] = 0x80;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100173 snd_dma_program(dma, runtime->dma_addr, 1, DMA_MODE_WRITE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 /* force interrupt */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 snd_sbdsp_command(chip, SB_DSP_OUTPUT);
176 snd_sbdsp_command(chip, 0);
177 snd_sbdsp_command(chip, 0);
178 }
179 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100180 if (stereo) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
182 spin_lock(&chip->mixer_lock);
183 /* save output filter status and turn it off */
184 mixreg = snd_sbmixer_read(chip, SB_DSP_PLAYBACK_FILT);
185 snd_sbmixer_write(chip, SB_DSP_PLAYBACK_FILT, mixreg | 0x20);
186 spin_unlock(&chip->mixer_lock);
187 /* just use force_mode16 for temporary storate... */
188 chip->force_mode16 = mixreg;
189 } else {
190 snd_sbdsp_command(chip, 256 - runtime->rate_den);
191 }
192 if (chip->playback_format != SB_DSP_OUTPUT) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100193 if (chip->mode & SB_MODE_PLAYBACK_16)
194 count /= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 count--;
196 snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
197 snd_sbdsp_command(chip, count & 0xff);
198 snd_sbdsp_command(chip, count >> 8);
199 }
200 spin_unlock_irqrestore(&chip->reg_lock, flags);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100201 snd_dma_program(dma, runtime->dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 size, DMA_MODE_WRITE | DMA_AUTOINIT);
203 return 0;
204}
205
Takashi Iwai029d64b2005-11-17 14:34:36 +0100206static int snd_sb8_playback_trigger(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 int cmd)
208{
209 unsigned long flags;
Takashi Iwai029d64b2005-11-17 14:34:36 +0100210 struct snd_sb *chip = snd_pcm_substream_chip(substream);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 unsigned int count;
212
213 spin_lock_irqsave(&chip->reg_lock, flags);
214 switch (cmd) {
215 case SNDRV_PCM_TRIGGER_START:
216 snd_sbdsp_command(chip, chip->playback_format);
217 if (chip->playback_format == SB_DSP_OUTPUT) {
218 count = chip->p_period_size - 1;
219 snd_sbdsp_command(chip, count & 0xff);
220 snd_sbdsp_command(chip, count >> 8);
221 }
222 break;
223 case SNDRV_PCM_TRIGGER_STOP:
224 if (chip->playback_format == SB_DSP_HI_OUTPUT_AUTO) {
Takashi Iwai029d64b2005-11-17 14:34:36 +0100225 struct snd_pcm_runtime *runtime = substream->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 snd_sbdsp_reset(chip);
227 if (runtime->channels > 1) {
228 spin_lock(&chip->mixer_lock);
229 /* restore output filter and set hardware to mono mode */
230 snd_sbmixer_write(chip, SB_DSP_STEREO_SW, chip->force_mode16 & ~0x02);
231 spin_unlock(&chip->mixer_lock);
232 }
233 } else {
234 snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
235 }
236 snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
237 }
238 spin_unlock_irqrestore(&chip->reg_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239 return 0;
240}
241
Takashi Iwai029d64b2005-11-17 14:34:36 +0100242static int snd_sb8_hw_params(struct snd_pcm_substream *substream,
243 struct snd_pcm_hw_params *hw_params)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244{
245 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
246}
247
Takashi Iwai029d64b2005-11-17 14:34:36 +0100248static int snd_sb8_hw_free(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249{
250 snd_pcm_lib_free_pages(substream);
251 return 0;
252}
253
Takashi Iwai029d64b2005-11-17 14:34:36 +0100254static int snd_sb8_capture_prepare(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255{
256 unsigned long flags;
Takashi Iwai029d64b2005-11-17 14:34:36 +0100257 struct snd_sb *chip = snd_pcm_substream_chip(substream);
258 struct snd_pcm_runtime *runtime = substream->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 unsigned int mixreg, rate, size, count;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100260 unsigned char format;
261 unsigned char stereo = runtime->channels > 1;
262 int dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263
264 rate = runtime->rate;
265 switch (chip->hardware) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100266 case SB_HW_JAZZ16:
267 if (runtime->format == SNDRV_PCM_FORMAT_S16_LE) {
268 if (chip->mode & SB_MODE_PLAYBACK_16)
269 return -EBUSY;
270 else
271 chip->mode |= SB_MODE_CAPTURE_16;
272 }
273 chip->capture_format = SB_DSP_LO_INPUT_AUTO;
274 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 case SB_HW_PRO:
276 if (runtime->channels > 1) {
Takashi Iwai622207d2008-08-08 17:11:45 +0200277 if (snd_BUG_ON(rate != SB8_RATE(11025) &&
278 rate != SB8_RATE(22050)))
279 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 chip->capture_format = SB_DSP_HI_INPUT_AUTO;
281 break;
282 }
283 chip->capture_format = (rate > 23000) ? SB_DSP_HI_INPUT_AUTO : SB_DSP_LO_INPUT_AUTO;
284 break;
285 case SB_HW_201:
286 if (rate > 13000) {
287 chip->capture_format = SB_DSP_HI_INPUT_AUTO;
288 break;
289 }
290 /* fallthru */
291 case SB_HW_20:
292 chip->capture_format = SB_DSP_LO_INPUT_AUTO;
293 break;
294 case SB_HW_10:
295 chip->capture_format = SB_DSP_INPUT;
296 break;
297 default:
298 return -EINVAL;
299 }
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100300 if (chip->mode & SB_MODE_CAPTURE_16) {
301 format = stereo ? SB_DSP_STEREO_16BIT : SB_DSP_MONO_16BIT;
302 dma = chip->dma16;
303 } else {
304 format = stereo ? SB_DSP_STEREO_8BIT : SB_DSP_MONO_8BIT;
305 chip->mode |= SB_MODE_CAPTURE_8;
306 dma = chip->dma8;
307 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 size = chip->c_dma_size = snd_pcm_lib_buffer_bytes(substream);
309 count = chip->c_period_size = snd_pcm_lib_period_bytes(substream);
310 spin_lock_irqsave(&chip->reg_lock, flags);
311 snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100312 if (chip->hardware == SB_HW_JAZZ16)
313 snd_sbdsp_command(chip, format);
314 else if (stereo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 snd_sbdsp_command(chip, SB_DSP_STEREO_8BIT);
316 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100317 if (stereo) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 snd_sbdsp_command(chip, 256 - runtime->rate_den / 2);
319 spin_lock(&chip->mixer_lock);
320 /* save input filter status and turn it off */
321 mixreg = snd_sbmixer_read(chip, SB_DSP_CAPTURE_FILT);
322 snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, mixreg | 0x20);
323 spin_unlock(&chip->mixer_lock);
324 /* just use force_mode16 for temporary storate... */
325 chip->force_mode16 = mixreg;
326 } else {
327 snd_sbdsp_command(chip, 256 - runtime->rate_den);
328 }
Clemens Ladisch20cde9e2008-02-25 11:04:41 +0100329 if (chip->capture_format != SB_DSP_INPUT) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100330 if (chip->mode & SB_MODE_PLAYBACK_16)
331 count /= 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 count--;
333 snd_sbdsp_command(chip, SB_DSP_BLOCK_SIZE);
334 snd_sbdsp_command(chip, count & 0xff);
335 snd_sbdsp_command(chip, count >> 8);
336 }
337 spin_unlock_irqrestore(&chip->reg_lock, flags);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100338 snd_dma_program(dma, runtime->dma_addr,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 size, DMA_MODE_READ | DMA_AUTOINIT);
340 return 0;
341}
342
Takashi Iwai029d64b2005-11-17 14:34:36 +0100343static int snd_sb8_capture_trigger(struct snd_pcm_substream *substream,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 int cmd)
345{
346 unsigned long flags;
Takashi Iwai029d64b2005-11-17 14:34:36 +0100347 struct snd_sb *chip = snd_pcm_substream_chip(substream);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 unsigned int count;
349
350 spin_lock_irqsave(&chip->reg_lock, flags);
351 switch (cmd) {
352 case SNDRV_PCM_TRIGGER_START:
353 snd_sbdsp_command(chip, chip->capture_format);
354 if (chip->capture_format == SB_DSP_INPUT) {
355 count = chip->c_period_size - 1;
356 snd_sbdsp_command(chip, count & 0xff);
357 snd_sbdsp_command(chip, count >> 8);
358 }
359 break;
360 case SNDRV_PCM_TRIGGER_STOP:
361 if (chip->capture_format == SB_DSP_HI_INPUT_AUTO) {
Takashi Iwai029d64b2005-11-17 14:34:36 +0100362 struct snd_pcm_runtime *runtime = substream->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 snd_sbdsp_reset(chip);
364 if (runtime->channels > 1) {
365 /* restore input filter status */
366 spin_lock(&chip->mixer_lock);
367 snd_sbmixer_write(chip, SB_DSP_CAPTURE_FILT, chip->force_mode16);
368 spin_unlock(&chip->mixer_lock);
369 /* set hardware to mono mode */
370 snd_sbdsp_command(chip, SB_DSP_MONO_8BIT);
371 }
372 } else {
373 snd_sbdsp_command(chip, SB_DSP_DMA8_OFF);
374 }
375 snd_sbdsp_command(chip, SB_DSP_SPEAKER_OFF);
376 }
377 spin_unlock_irqrestore(&chip->reg_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 return 0;
379}
380
Takashi Iwai029d64b2005-11-17 14:34:36 +0100381irqreturn_t snd_sb8dsp_interrupt(struct snd_sb *chip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382{
Takashi Iwai029d64b2005-11-17 14:34:36 +0100383 struct snd_pcm_substream *substream;
384 struct snd_pcm_runtime *runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 snd_sb_ack_8bit(chip);
387 switch (chip->mode) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100388 case SB_MODE_PLAYBACK_16: /* ok.. playback is active */
389 if (chip->hardware != SB_HW_JAZZ16)
390 break;
391 /* fallthru */
392 case SB_MODE_PLAYBACK_8:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 substream = chip->playback_substream;
394 runtime = substream->runtime;
395 if (chip->playback_format == SB_DSP_OUTPUT)
396 snd_sb8_playback_trigger(substream, SNDRV_PCM_TRIGGER_START);
397 snd_pcm_period_elapsed(substream);
398 break;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100399 case SB_MODE_CAPTURE_16:
400 if (chip->hardware != SB_HW_JAZZ16)
401 break;
402 /* fallthru */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 case SB_MODE_CAPTURE_8:
404 substream = chip->capture_substream;
405 runtime = substream->runtime;
406 if (chip->capture_format == SB_DSP_INPUT)
407 snd_sb8_capture_trigger(substream, SNDRV_PCM_TRIGGER_START);
408 snd_pcm_period_elapsed(substream);
409 break;
410 }
411 return IRQ_HANDLED;
412}
413
Takashi Iwai029d64b2005-11-17 14:34:36 +0100414static snd_pcm_uframes_t snd_sb8_playback_pointer(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415{
Takashi Iwai029d64b2005-11-17 14:34:36 +0100416 struct snd_sb *chip = snd_pcm_substream_chip(substream);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 size_t ptr;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100418 int dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100420 if (chip->mode & SB_MODE_PLAYBACK_8)
421 dma = chip->dma8;
422 else if (chip->mode & SB_MODE_PLAYBACK_16)
423 dma = chip->dma16;
424 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 return 0;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100426 ptr = snd_dma_pointer(dma, chip->p_dma_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 return bytes_to_frames(substream->runtime, ptr);
428}
429
Takashi Iwai029d64b2005-11-17 14:34:36 +0100430static snd_pcm_uframes_t snd_sb8_capture_pointer(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431{
Takashi Iwai029d64b2005-11-17 14:34:36 +0100432 struct snd_sb *chip = snd_pcm_substream_chip(substream);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 size_t ptr;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100434 int dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100436 if (chip->mode & SB_MODE_CAPTURE_8)
437 dma = chip->dma8;
438 else if (chip->mode & SB_MODE_CAPTURE_16)
439 dma = chip->dma16;
440 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 return 0;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100442 ptr = snd_dma_pointer(dma, chip->c_dma_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 return bytes_to_frames(substream->runtime, ptr);
444}
445
446/*
447
448 */
449
Takashi Iwai029d64b2005-11-17 14:34:36 +0100450static struct snd_pcm_hardware snd_sb8_playback =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451{
452 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
453 SNDRV_PCM_INFO_MMAP_VALID),
454 .formats = SNDRV_PCM_FMTBIT_U8,
455 .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000 |
456 SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_22050),
457 .rate_min = 4000,
458 .rate_max = 23000,
459 .channels_min = 1,
460 .channels_max = 1,
461 .buffer_bytes_max = 65536,
462 .period_bytes_min = 64,
463 .period_bytes_max = 65536,
464 .periods_min = 1,
465 .periods_max = 1024,
466 .fifo_size = 0,
467};
468
Takashi Iwai029d64b2005-11-17 14:34:36 +0100469static struct snd_pcm_hardware snd_sb8_capture =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470{
471 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
472 SNDRV_PCM_INFO_MMAP_VALID),
473 .formats = SNDRV_PCM_FMTBIT_U8,
474 .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000 |
475 SNDRV_PCM_RATE_11025),
476 .rate_min = 4000,
477 .rate_max = 13000,
478 .channels_min = 1,
479 .channels_max = 1,
480 .buffer_bytes_max = 65536,
481 .period_bytes_min = 64,
482 .period_bytes_max = 65536,
483 .periods_min = 1,
484 .periods_max = 1024,
485 .fifo_size = 0,
486};
487
488/*
489 *
490 */
491
Takashi Iwai029d64b2005-11-17 14:34:36 +0100492static int snd_sb8_open(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493{
Takashi Iwai029d64b2005-11-17 14:34:36 +0100494 struct snd_sb *chip = snd_pcm_substream_chip(substream);
495 struct snd_pcm_runtime *runtime = substream->runtime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 unsigned long flags;
497
498 spin_lock_irqsave(&chip->open_lock, flags);
499 if (chip->open) {
500 spin_unlock_irqrestore(&chip->open_lock, flags);
501 return -EAGAIN;
502 }
503 chip->open |= SB_OPEN_PCM;
504 spin_unlock_irqrestore(&chip->open_lock, flags);
505 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
506 chip->playback_substream = substream;
507 runtime->hw = snd_sb8_playback;
508 } else {
509 chip->capture_substream = substream;
510 runtime->hw = snd_sb8_capture;
511 }
512 switch (chip->hardware) {
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100513 case SB_HW_JAZZ16:
Krzysztof Helt44eba3e2009-12-23 18:02:41 +0100514 if (chip->dma16 == 5 || chip->dma16 == 7)
515 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S16_LE;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100516 runtime->hw.rates |= SNDRV_PCM_RATE_8000_48000;
517 runtime->hw.rate_min = 4000;
518 runtime->hw.rate_max = 50000;
519 runtime->hw.channels_max = 2;
520 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 case SB_HW_PRO:
522 runtime->hw.rate_max = 44100;
523 runtime->hw.channels_max = 2;
524 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
525 snd_sb8_hw_constraint_rate_channels, NULL,
526 SNDRV_PCM_HW_PARAM_CHANNELS,
527 SNDRV_PCM_HW_PARAM_RATE, -1);
528 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
529 snd_sb8_hw_constraint_channels_rate, NULL,
530 SNDRV_PCM_HW_PARAM_RATE, -1);
531 break;
532 case SB_HW_201:
533 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
534 runtime->hw.rate_max = 44100;
535 } else {
536 runtime->hw.rate_max = 15000;
537 }
538 default:
539 break;
540 }
541 snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
542 &hw_constraints_clock);
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100543 if (chip->dma8 > 3 || chip->dma16 >= 0) {
544 snd_pcm_hw_constraint_step(runtime, 0,
545 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 2);
546 snd_pcm_hw_constraint_step(runtime, 0,
547 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 2);
548 runtime->hw.buffer_bytes_max = 128 * 1024 * 1024;
549 runtime->hw.period_bytes_max = 128 * 1024 * 1024;
550 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 return 0;
552}
553
Takashi Iwai029d64b2005-11-17 14:34:36 +0100554static int snd_sb8_close(struct snd_pcm_substream *substream)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555{
556 unsigned long flags;
Takashi Iwai029d64b2005-11-17 14:34:36 +0100557 struct snd_sb *chip = snd_pcm_substream_chip(substream);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558
559 chip->playback_substream = NULL;
560 chip->capture_substream = NULL;
561 spin_lock_irqsave(&chip->open_lock, flags);
562 chip->open &= ~SB_OPEN_PCM;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100563 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
564 chip->mode &= ~SB_MODE_PLAYBACK;
565 else
566 chip->mode &= ~SB_MODE_CAPTURE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 spin_unlock_irqrestore(&chip->open_lock, flags);
568 return 0;
569}
570
571/*
572 * Initialization part
573 */
574
Takashi Iwai029d64b2005-11-17 14:34:36 +0100575static struct snd_pcm_ops snd_sb8_playback_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 .open = snd_sb8_open,
577 .close = snd_sb8_close,
578 .ioctl = snd_pcm_lib_ioctl,
579 .hw_params = snd_sb8_hw_params,
580 .hw_free = snd_sb8_hw_free,
581 .prepare = snd_sb8_playback_prepare,
582 .trigger = snd_sb8_playback_trigger,
583 .pointer = snd_sb8_playback_pointer,
584};
585
Takashi Iwai029d64b2005-11-17 14:34:36 +0100586static struct snd_pcm_ops snd_sb8_capture_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 .open = snd_sb8_open,
588 .close = snd_sb8_close,
589 .ioctl = snd_pcm_lib_ioctl,
590 .hw_params = snd_sb8_hw_params,
591 .hw_free = snd_sb8_hw_free,
592 .prepare = snd_sb8_capture_prepare,
593 .trigger = snd_sb8_capture_trigger,
594 .pointer = snd_sb8_capture_pointer,
595};
596
Lars-Peter Clausen8c776292015-01-02 12:24:41 +0100597int snd_sb8dsp_pcm(struct snd_sb *chip, int device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598{
Takashi Iwai029d64b2005-11-17 14:34:36 +0100599 struct snd_card *card = chip->card;
600 struct snd_pcm *pcm;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 int err;
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100602 size_t max_prealloc = 64 * 1024;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604 if ((err = snd_pcm_new(card, "SB8 DSP", device, 1, 1, &pcm)) < 0)
605 return err;
606 sprintf(pcm->name, "DSP v%i.%i", chip->version >> 8, chip->version & 0xff);
607 pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
608 pcm->private_data = chip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
610 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sb8_playback_ops);
611 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sb8_capture_ops);
612
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100613 if (chip->dma8 > 3 || chip->dma16 >= 0)
614 max_prealloc = 128 * 1024;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
616 snd_dma_isa_data(),
Krzysztof Heltad8decb2009-12-20 19:01:50 +0100617 64*1024, max_prealloc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 return 0;
620}
621
622EXPORT_SYMBOL(snd_sb8dsp_pcm);
623EXPORT_SYMBOL(snd_sb8dsp_interrupt);
624 /* sb8_midi.c */
625EXPORT_SYMBOL(snd_sb8dsp_midi_interrupt);
626EXPORT_SYMBOL(snd_sb8dsp_midi);
627
628/*
629 * INIT part
630 */
631
632static int __init alsa_sb8_init(void)
633{
634 return 0;
635}
636
637static void __exit alsa_sb8_exit(void)
638{
639}
640
641module_init(alsa_sb8_init)
642module_exit(alsa_sb8_exit)