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[ALSA] Add PM support to SB-support code
[deliverable/linux.git] / sound / pci / als4000.c
CommitLineData
1da177e4
LT		 1/*
2 * card-als4000.c - driver for Avance Logic ALS4000 based soundcards.
3 * Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>,
4 * Jaroslav Kysela <perex@suse.cz>
5 * Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
6 *
7 * Framework borrowed from Massimo Piccioni's card-als100.c.
8 *
ba7301c7
AM		 9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
1da177e4
LT		 24 * NOTES
25 *
26 * Since Avance does not provide any meaningful documentation, and I
27 * bought an ALS4000 based soundcard, I was forced to base this driver
28 * on reverse engineering.
29 *
30 * Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF)
31 * can be found on the ALSA web site.
32 *
33 * The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an
34 * ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport
35 * interface. These subsystems can be mapped into ISA io-port space,
36 * using the PCI-interface. In addition, the PCI-bit provides DMA and IRQ
37 * services to the subsystems.
38 *
39 * While ALS4000 is very similar to a SoundBlaster, the differences in
40 * DMA and capturing require more changes to the SoundBlaster than
41 * desirable, so I made this separate driver.
42 *
43 * The ALS4000 can do real full duplex playback/capture.
44 *
45 * FMDAC:
46 * - 0x4f -> port 0x14
47 * - port 0x15 |= 1
48 *
49 * Enable/disable 3D sound:
50 * - 0x50 -> port 0x14
51 * - change bit 6 (0x40) of port 0x15
52 *
53 * Set QSound:
54 * - 0xdb -> port 0x14
55 * - set port 0x15:
56 * 0x3e (mode 3), 0x3c (mode 2), 0x3a (mode 1), 0x38 (mode 0)
57 *
58 * Set KSound:
59 * - value -> some port 0x0c0d
60 *
ba7301c7
AM		 61 * ToDo:
62 * - Proper shared IRQ handling?
63 * - power management? (card can do voice wakeup according to datasheet!!)
1da177e4
LT		 64 */
65
66#include <sound/driver.h>
67#include <asm/io.h>
68#include <linux/init.h>
69#include <linux/pci.h>
70#include <linux/slab.h>
71#include <linux/gameport.h>
72#include <linux/moduleparam.h>
73#include <sound/core.h>
74#include <sound/pcm.h>
75#include <sound/rawmidi.h>
76#include <sound/mpu401.h>
77#include <sound/opl3.h>
78#include <sound/sb.h>
79#include <sound/initval.h>
80
81MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>");
82MODULE_DESCRIPTION("Avance Logic ALS4000");
83MODULE_LICENSE("GPL");
84MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}");
85
86#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
87#define SUPPORT_JOYSTICK 1
88#endif
89
90static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
91static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
92static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
93#ifdef SUPPORT_JOYSTICK
94static int joystick_port[SNDRV_CARDS];
95#endif
96
97module_param_array(index, int, NULL, 0444);
98MODULE_PARM_DESC(index, "Index value for ALS4000 soundcard.");
99module_param_array(id, charp, NULL, 0444);
100MODULE_PARM_DESC(id, "ID string for ALS4000 soundcard.");
101module_param_array(enable, bool, NULL, 0444);
102MODULE_PARM_DESC(enable, "Enable ALS4000 soundcard.");
103#ifdef SUPPORT_JOYSTICK
104module_param_array(joystick_port, int, NULL, 0444);
105MODULE_PARM_DESC(joystick_port, "Joystick port address for ALS4000 soundcard. (0 = disabled)");
106#endif
107
17c39d9a 108struct snd_card_als4000 {
ba7301c7 109 /* most frequent access first */
1da177e4 110 unsigned long gcr;
ba7301c7 111 struct pci_dev *pci;
1da177e4
LT		 112#ifdef SUPPORT_JOYSTICK
113 struct gameport *gameport;
114#endif
17c39d9a 115};
1da177e4
LT		 116
117static struct pci_device_id snd_als4000_ids[] = {
118 { 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ALS4000 */
119 { 0, }
120};
121
122MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
123
124static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val)
125{
126 outb(reg, port+0x0c);
127 outl(val, port+0x08);
128}
129
17c39d9a 130static inline void snd_als4000_gcr_write(struct snd_sb *sb, u32 reg, u32 val)
1da177e4
LT		 131{
132 snd_als4000_gcr_write_addr(sb->alt_port, reg, val);
133}
134
135static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg)
136{
137 outb(reg, port+0x0c);
138 return inl(port+0x08);
139}
140
17c39d9a 141static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, u32 reg)
1da177e4
LT		 142{
143 return snd_als4000_gcr_read_addr(sb->alt_port, reg);
144}
145
17c39d9a 146static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
1da177e4
LT		 147{
148 if (!(chip->mode & SB_RATE_LOCK)) {
149 snd_sbdsp_command(chip, SB_DSP_SAMPLE_RATE_OUT);
150 snd_sbdsp_command(chip, rate>>8);
151 snd_sbdsp_command(chip, rate);
152 }
153}
154
17c39d9a
TI		 155static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
156 dma_addr_t addr, unsigned size)
1da177e4
LT		 157{
158 snd_als4000_gcr_write(chip, 0xa2, addr);
159 snd_als4000_gcr_write(chip, 0xa3, (size-1));
160}
161
17c39d9a
TI		 162static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
163 dma_addr_t addr, unsigned size)
1da177e4
LT		 164{
165 snd_als4000_gcr_write(chip, 0x91, addr);
166 snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000);
167}
168
169#define ALS4000_FORMAT_SIGNED (1<<0)
170#define ALS4000_FORMAT_16BIT (1<<1)
171#define ALS4000_FORMAT_STEREO (1<<2)
172
17c39d9a 173static int snd_als4000_get_format(struct snd_pcm_runtime *runtime)
1da177e4
LT		 174{
175 int result;
176
177 result = 0;
178 if (snd_pcm_format_signed(runtime->format))
179 result |= ALS4000_FORMAT_SIGNED;
180 if (snd_pcm_format_physical_width(runtime->format) == 16)
181 result |= ALS4000_FORMAT_16BIT;
182 if (runtime->channels > 1)
183 result |= ALS4000_FORMAT_STEREO;
184 return result;
185}
186
187/* structure for setting up playback */
ba7301c7 188static const struct {
1da177e4
LT		 189 unsigned char dsp_cmd, dma_on, dma_off, format;
190} playback_cmd_vals[]={
191/* ALS4000_FORMAT_U8_MONO */
192{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_MONO },
193/* ALS4000_FORMAT_S8_MONO */
194{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_MONO },
195/* ALS4000_FORMAT_U16L_MONO */
196{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_MONO },
197/* ALS4000_FORMAT_S16L_MONO */
198{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_MONO },
199/* ALS4000_FORMAT_U8_STEREO */
200{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_UNS_STEREO },
201/* ALS4000_FORMAT_S8_STEREO */
202{ SB_DSP4_OUT8_AI, SB_DSP_DMA8_ON, SB_DSP_DMA8_OFF, SB_DSP4_MODE_SIGN_STEREO },
203/* ALS4000_FORMAT_U16L_STEREO */
204{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_UNS_STEREO },
205/* ALS4000_FORMAT_S16L_STEREO */
206{ SB_DSP4_OUT16_AI, SB_DSP_DMA16_ON, SB_DSP_DMA16_OFF, SB_DSP4_MODE_SIGN_STEREO },
207};
208#define playback_cmd(chip) (playback_cmd_vals[(chip)->playback_format])
209
210/* structure for setting up capture */
211enum { CMD_WIDTH8=0x04, CMD_SIGNED=0x10, CMD_MONO=0x80, CMD_STEREO=0xA0 };
ba7301c7 212static const unsigned char capture_cmd_vals[]=
1da177e4
LT		 213{
214CMD_WIDTH8|CMD_MONO, /* ALS4000_FORMAT_U8_MONO */
215CMD_WIDTH8|CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S8_MONO */
216CMD_MONO, /* ALS4000_FORMAT_U16L_MONO */
217CMD_SIGNED|CMD_MONO, /* ALS4000_FORMAT_S16L_MONO */
218CMD_WIDTH8|CMD_STEREO, /* ALS4000_FORMAT_U8_STEREO */
219CMD_WIDTH8|CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S8_STEREO */
220CMD_STEREO, /* ALS4000_FORMAT_U16L_STEREO */
221CMD_SIGNED|CMD_STEREO, /* ALS4000_FORMAT_S16L_STEREO */
222};
223#define capture_cmd(chip) (capture_cmd_vals[(chip)->capture_format])
224
17c39d9a
TI		 225static int snd_als4000_hw_params(struct snd_pcm_substream *substream,
226 struct snd_pcm_hw_params *hw_params)
1da177e4
LT		 227{
228 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
229}
230
17c39d9a 231static int snd_als4000_hw_free(struct snd_pcm_substream *substream)
1da177e4
LT		 232{
233 snd_pcm_lib_free_pages(substream);
234 return 0;
235}
236
17c39d9a 237static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 238{
17c39d9a
TI		 239 struct snd_sb *chip = snd_pcm_substream_chip(substream);
240 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 241 unsigned long size;
242 unsigned count;
243
244 chip->capture_format = snd_als4000_get_format(runtime);
245
246 size = snd_pcm_lib_buffer_bytes(substream);
247 count = snd_pcm_lib_period_bytes(substream);
248
249 if (chip->capture_format & ALS4000_FORMAT_16BIT)
250 count >>=1;
251 count--;
252
17c39d9a 253 spin_lock_irq(&chip->reg_lock);
1da177e4
LT		 254 snd_als4000_set_rate(chip, runtime->rate);
255 snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
17c39d9a
TI		 256 spin_unlock_irq(&chip->reg_lock);
257 spin_lock_irq(&chip->mixer_lock);
1da177e4
LT		 258 snd_sbmixer_write(chip, 0xdc, count);
259 snd_sbmixer_write(chip, 0xdd, count>>8);
17c39d9a 260 spin_unlock_irq(&chip->mixer_lock);
1da177e4
LT		 261 return 0;
262}
263
17c39d9a 264static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 265{
17c39d9a
TI		 266 struct snd_sb *chip = snd_pcm_substream_chip(substream);
267 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 268 unsigned long size;
269 unsigned count;
270
271 chip->playback_format = snd_als4000_get_format(runtime);
272
273 size = snd_pcm_lib_buffer_bytes(substream);
274 count = snd_pcm_lib_period_bytes(substream);
275
276 if (chip->playback_format & ALS4000_FORMAT_16BIT)
277 count >>=1;
278 count--;
279
280 /* FIXME: from second playback on, there's a lot more clicks and pops
281 * involved here than on first playback. Fiddling with
282 * tons of different settings didn't help (DMA, speaker on/off,
283 * reordering, ...). Something seems to get enabled on playback
284 * that I haven't found out how to disable again, which then causes
285 * the switching pops to reach the speakers the next time here. */
17c39d9a 286 spin_lock_irq(&chip->reg_lock);
1da177e4
LT		 287 snd_als4000_set_rate(chip, runtime->rate);
288 snd_als4000_set_playback_dma(chip, runtime->dma_addr, size);
289
290 /* SPEAKER_ON not needed, since dma_on seems to also enable speaker */
291 /* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
292 snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
293 snd_sbdsp_command(chip, playback_cmd(chip).format);
294 snd_sbdsp_command(chip, count);
295 snd_sbdsp_command(chip, count>>8);
296 snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
17c39d9a 297 spin_unlock_irq(&chip->reg_lock);
1da177e4
LT		 298
299 return 0;
300}
301
17c39d9a 302static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int cmd)
1da177e4 303{
17c39d9a 304 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 305 int result = 0;
306
307 spin_lock(&chip->mixer_lock);
308 if (cmd == SNDRV_PCM_TRIGGER_START) {
309 chip->mode |= SB_RATE_LOCK_CAPTURE;
310 snd_sbmixer_write(chip, 0xde, capture_cmd(chip));
311 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
312 chip->mode &= ~SB_RATE_LOCK_CAPTURE;
313 snd_sbmixer_write(chip, 0xde, 0);
314 } else {
315 result = -EINVAL;
316 }
317 spin_unlock(&chip->mixer_lock);
318 return result;
319}
320
17c39d9a 321static int snd_als4000_playback_trigger(struct snd_pcm_substream *substream, int cmd)
1da177e4 322{
17c39d9a 323 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 324 int result = 0;
325
326 spin_lock(&chip->reg_lock);
327 if (cmd == SNDRV_PCM_TRIGGER_START) {
328 chip->mode |= SB_RATE_LOCK_PLAYBACK;
329 snd_sbdsp_command(chip, playback_cmd(chip).dma_on);
330 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
331 snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
332 chip->mode &= ~SB_RATE_LOCK_PLAYBACK;
333 } else {
334 result = -EINVAL;
335 }
336 spin_unlock(&chip->reg_lock);
337 return result;
338}
339
17c39d9a 340static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *substream)
1da177e4 341{
17c39d9a 342 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 343 unsigned int result;
344
345 spin_lock(&chip->reg_lock);
346 result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff;
347 spin_unlock(&chip->reg_lock);
348 return bytes_to_frames( substream->runtime, result );
349}
350
17c39d9a 351static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *substream)
1da177e4 352{
17c39d9a 353 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 354 unsigned result;
355
356 spin_lock(&chip->reg_lock);
357 result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff;
358 spin_unlock(&chip->reg_lock);
359 return bytes_to_frames( substream->runtime, result );
360}
361
ba7301c7
AM		 362/* FIXME: this IRQ routine doesn't really support IRQ sharing (we always
363 * return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
364 * ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
365 * the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
366 * register (alt_port + 0x0e). Probably something could be optimized here to
367 * query/write one register only...
368 * And even if both registers need to be queried, then there's still the
369 * question of whether it's actually correct to ACK PCI IRQ before reading
370 * SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
371 * SB IRQ status.
372 * And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
373 * */
1da177e4
LT		 374static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id, struct pt_regs *regs)
375{
17c39d9a 376 struct snd_sb *chip = dev_id;
1da177e4
LT		 377 unsigned gcr_status;
378 unsigned sb_status;
379
380 /* find out which bit of the ALS4000 produced the interrupt */
381 gcr_status = inb(chip->alt_port + 0xe);
382
383 if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */
384 snd_pcm_period_elapsed(chip->playback_substream);
385 if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */
386 snd_pcm_period_elapsed(chip->capture_substream);
387 if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */
11ca9afc 388 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1da177e4
LT		 389 /* release the gcr */
390 outb(gcr_status, chip->alt_port + 0xe);
391
392 spin_lock(&chip->mixer_lock);
393 sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
394 spin_unlock(&chip->mixer_lock);
395
396 if (sb_status & SB_IRQTYPE_8BIT)
397 snd_sb_ack_8bit(chip);
398 if (sb_status & SB_IRQTYPE_16BIT)
399 snd_sb_ack_16bit(chip);
400 if (sb_status & SB_IRQTYPE_MPUIN)
401 inb(chip->mpu_port);
402 if (sb_status & 0x20)
403 inb(SBP(chip, RESET));
404 return IRQ_HANDLED;
405}
406
407/*****************************************************************/
408
17c39d9a 409static struct snd_pcm_hardware snd_als4000_playback =
1da177e4
LT		 410{
411 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
412 SNDRV_PCM_INFO_MMAP_VALID),
413 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
414 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
415 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
416 .rate_min = 4000,
417 .rate_max = 48000,
418 .channels_min = 1,
419 .channels_max = 2,
420 .buffer_bytes_max = 65536,
421 .period_bytes_min = 64,
422 .period_bytes_max = 65536,
423 .periods_min = 1,
424 .periods_max = 1024,
425 .fifo_size = 0
426};
427
17c39d9a 428static struct snd_pcm_hardware snd_als4000_capture =
1da177e4
LT		 429{
430 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
431 SNDRV_PCM_INFO_MMAP_VALID),
432 .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
433 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE, /* formats */
434 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
435 .rate_min = 4000,
436 .rate_max = 48000,
437 .channels_min = 1,
438 .channels_max = 2,
439 .buffer_bytes_max = 65536,
440 .period_bytes_min = 64,
441 .period_bytes_max = 65536,
442 .periods_min = 1,
443 .periods_max = 1024,
444 .fifo_size = 0
445};
446
447/*****************************************************************/
448
17c39d9a 449static int snd_als4000_playback_open(struct snd_pcm_substream *substream)
1da177e4 450{
17c39d9a
TI		 451 struct snd_sb *chip = snd_pcm_substream_chip(substream);
452 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 453
454 chip->playback_substream = substream;
455 runtime->hw = snd_als4000_playback;
456 return 0;
457}
458
17c39d9a 459static int snd_als4000_playback_close(struct snd_pcm_substream *substream)
1da177e4 460{
17c39d9a 461 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 462
463 chip->playback_substream = NULL;
464 snd_pcm_lib_free_pages(substream);
465 return 0;
466}
467
17c39d9a 468static int snd_als4000_capture_open(struct snd_pcm_substream *substream)
1da177e4 469{
17c39d9a
TI		 470 struct snd_sb *chip = snd_pcm_substream_chip(substream);
471 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 472
473 chip->capture_substream = substream;
474 runtime->hw = snd_als4000_capture;
475 return 0;
476}
477
17c39d9a 478static int snd_als4000_capture_close(struct snd_pcm_substream *substream)
1da177e4 479{
17c39d9a 480 struct snd_sb *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 481
482 chip->capture_substream = NULL;
483 snd_pcm_lib_free_pages(substream);
484 return 0;
485}
486
487/******************************************************************/
488
17c39d9a 489static struct snd_pcm_ops snd_als4000_playback_ops = {
1da177e4
LT		 490 .open = snd_als4000_playback_open,
491 .close = snd_als4000_playback_close,
492 .ioctl = snd_pcm_lib_ioctl,
493 .hw_params = snd_als4000_hw_params,
494 .hw_free = snd_als4000_hw_free,
495 .prepare = snd_als4000_playback_prepare,
496 .trigger = snd_als4000_playback_trigger,
497 .pointer = snd_als4000_playback_pointer
498};
499
17c39d9a 500static struct snd_pcm_ops snd_als4000_capture_ops = {
1da177e4
LT		 501 .open = snd_als4000_capture_open,
502 .close = snd_als4000_capture_close,
503 .ioctl = snd_pcm_lib_ioctl,
504 .hw_params = snd_als4000_hw_params,
505 .hw_free = snd_als4000_hw_free,
506 .prepare = snd_als4000_capture_prepare,
507 .trigger = snd_als4000_capture_trigger,
508 .pointer = snd_als4000_capture_pointer
509};
510
17c39d9a 511static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device)
1da177e4 512{
17c39d9a 513 struct snd_pcm *pcm;
1da177e4
LT		 514 int err;
515
516 if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0)
517 return err;
1da177e4
LT		 518 pcm->private_data = chip;
519 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
520 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_als4000_playback_ops);
521 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_als4000_capture_ops);
522
523 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
524 64*1024, 64*1024);
525
526 chip->pcm = pcm;
527
528 return 0;
529}
530
531/******************************************************************/
532
533static void snd_als4000_set_addr(unsigned long gcr,
534 unsigned int sb,
535 unsigned int mpu,
536 unsigned int opl,
537 unsigned int game)
538{
539 u32 confA = 0;
540 u32 confB = 0;
541
542 if (mpu > 0)
543 confB |= (mpu | 1) << 16;
544 if (sb > 0)
545 confB |= (sb | 1);
546 if (game > 0)
547 confA |= (game | 1) << 16;
548 if (opl > 0)
549 confA |= (opl | 1);
550 snd_als4000_gcr_write_addr(gcr, 0xa8, confA);
551 snd_als4000_gcr_write_addr(gcr, 0xa9, confB);
552}
553
17c39d9a 554static void __devinit snd_als4000_configure(struct snd_sb *chip)
1da177e4
LT		 555{
556 unsigned tmp;
557 int i;
558
559 /* do some more configuration */
560 spin_lock_irq(&chip->mixer_lock);
561 tmp = snd_sbmixer_read(chip, 0xc0);
562 snd_sbmixer_write(chip, 0xc0, tmp|0x80);
563 /* always select DMA channel 0, since we do not actually use DMA */
564 snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
565 snd_sbmixer_write(chip, 0xc0, tmp&0x7f);
566 spin_unlock_irq(&chip->mixer_lock);
567
568 spin_lock_irq(&chip->reg_lock);
569 /* magic number. Enables interrupts(?) */
570 snd_als4000_gcr_write(chip, 0x8c, 0x28000);
571 for(i = 0x91; i <= 0x96; ++i)
572 snd_als4000_gcr_write(chip, i, 0);
573
574 snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99));
575 spin_unlock_irq(&chip->reg_lock);
576}
577
578#ifdef SUPPORT_JOYSTICK
17c39d9a 579static int __devinit snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)
1da177e4
LT		 580{
581 struct gameport *gp;
582 struct resource *r;
583 int io_port;
584
585 if (joystick_port[dev] == 0)
586 return -ENODEV;
587
588 if (joystick_port[dev] == 1) { /* auto-detect */
589 for (io_port = 0x200; io_port <= 0x218; io_port += 8) {
590 r = request_region(io_port, 8, "ALS4000 gameport");
591 if (r)
592 break;
593 }
594 } else {
595 io_port = joystick_port[dev];
596 r = request_region(io_port, 8, "ALS4000 gameport");
597 }
598
599 if (!r) {
600 printk(KERN_WARNING "als4000: cannot reserve joystick ports\n");
601 return -EBUSY;
602 }
603
604 acard->gameport = gp = gameport_allocate_port();
605 if (!gp) {
606 printk(KERN_ERR "als4000: cannot allocate memory for gameport\n");
b1d5776d 607 release_and_free_resource(r);
1da177e4
LT		 608 return -ENOMEM;
609 }
610
611 gameport_set_name(gp, "ALS4000 Gameport");
612 gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci));
613 gameport_set_dev_parent(gp, &acard->pci->dev);
614 gp->io = io_port;
615 gameport_set_port_data(gp, r);
616
617 /* Enable legacy joystick port */
618 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
619
620 gameport_register_port(acard->gameport);
621
622 return 0;
623}
624
17c39d9a 625static void snd_als4000_free_gameport(struct snd_card_als4000 *acard)
1da177e4
LT		 626{
627 if (acard->gameport) {
628 struct resource *r = gameport_get_port_data(acard->gameport);
629
630 gameport_unregister_port(acard->gameport);
631 acard->gameport = NULL;
632
633 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */
b1d5776d 634 release_and_free_resource(r);
1da177e4
LT		 635 }
636}
637#else
17c39d9a
TI		 638static inline int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) { return -ENOSYS; }
639static inline void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { }
1da177e4
LT		 640#endif
641
17c39d9a 642static void snd_card_als4000_free( struct snd_card *card )
1da177e4 643{
17c39d9a 644 struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data;
1da177e4
LT		 645
646 /* make sure that interrupts are disabled */
647 snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0);
648 /* free resources */
649 snd_als4000_free_gameport(acard);
650 pci_release_regions(acard->pci);
651 pci_disable_device(acard->pci);
652}
653
654static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
655 const struct pci_device_id *pci_id)
656{
657 static int dev;
17c39d9a
TI		 658 struct snd_card *card;
659 struct snd_card_als4000 *acard;
1da177e4 660 unsigned long gcr;
17c39d9a
TI		 661 struct snd_sb *chip;
662 struct snd_opl3 *opl3;
1da177e4
LT		 663 unsigned short word;
664 int err;
665
666 if (dev >= SNDRV_CARDS)
667 return -ENODEV;
668 if (!enable[dev]) {
669 dev++;
670 return -ENOENT;
671 }
672
673 /* enable PCI device */
674 if ((err = pci_enable_device(pci)) < 0) {
675 return err;
676 }
677 /* check, if we can restrict PCI DMA transfers to 24 bits */
678 if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
679 pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
99b359ba 680 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
1da177e4
LT		 681 pci_disable_device(pci);
682 return -ENXIO;
683 }
684
685 if ((err = pci_request_regions(pci, "ALS4000")) < 0) {
686 pci_disable_device(pci);
687 return err;
688 }
689 gcr = pci_resource_start(pci, 0);
690
691 pci_read_config_word(pci, PCI_COMMAND, &word);
692 pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
693 pci_set_master(pci);
694
695 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
17c39d9a 696 sizeof( struct snd_card_als4000 ) );
1da177e4
LT		 697 if (card == NULL) {
698 pci_release_regions(pci);
699 pci_disable_device(pci);
700 return -ENOMEM;
701 }
702
17c39d9a 703 acard = (struct snd_card_als4000 *)card->private_data;
1da177e4
LT		 704 acard->pci = pci;
705 acard->gcr = gcr;
706 card->private_free = snd_card_als4000_free;
707
708 /* disable all legacy ISA stuff */
709 snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0);
710
711 if ((err = snd_sbdsp_create(card,
712 gcr + 0x10,
713 pci->irq,
714 snd_als4000_interrupt,
715 -1,
716 -1,
717 SB_HW_ALS4000,
718 &chip)) < 0) {
ba7301c7 719 goto out_err;
1da177e4
LT		 720 }
721
722 chip->pci = pci;
723 chip->alt_port = gcr;
724 snd_card_set_dev(card, &pci->dev);
725
726 snd_als4000_configure(chip);
727
728 strcpy(card->driver, "ALS4000");
729 strcpy(card->shortname, "Avance Logic ALS4000");
730 sprintf(card->longname, "%s at 0x%lx, irq %i",
731 card->shortname, chip->alt_port, chip->irq);
732
733 if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
734 gcr+0x30, 1, pci->irq, 0,
735 &chip->rmidi)) < 0) {
ba7301c7
AM		 736 printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30);
737 goto out_err;
1da177e4
LT		 738 }
739
740 if ((err = snd_als4000_pcm(chip, 0)) < 0) {
ba7301c7 741 goto out_err;
1da177e4
LT		 742 }
743 if ((err = snd_sbmixer_new(chip)) < 0) {
ba7301c7 744 goto out_err;
1da177e4
LT		 745 }
746
747 if (snd_opl3_create(card, gcr+0x10, gcr+0x12,
748 OPL3_HW_AUTO, 1, &opl3) < 0) {
ba7301c7 749 printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n",
1da177e4
LT		 750 gcr+0x10, gcr+0x12 );
751 } else {
752 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
ba7301c7 753 goto out_err;
1da177e4
LT		 754 }
755 }
756
757 snd_als4000_create_gameport(acard, dev);
758
759 if ((err = snd_card_register(card)) < 0) {
ba7301c7 760 goto out_err;
1da177e4
LT		 761 }
762 pci_set_drvdata(pci, card);
763 dev++;
ba7301c7
AM		 764 err = 0;
765 goto out;
766
767out_err:
768 snd_card_free(card);
769
770out:
771 return err;
1da177e4
LT		 772}
773
774static void __devexit snd_card_als4000_remove(struct pci_dev *pci)
775{
776 snd_card_free(pci_get_drvdata(pci));
777 pci_set_drvdata(pci, NULL);
778}
779
780static struct pci_driver driver = {
781 .name = "ALS4000",
782 .id_table = snd_als4000_ids,
783 .probe = snd_card_als4000_probe,
784 .remove = __devexit_p(snd_card_als4000_remove),
785};
786
787static int __init alsa_card_als4000_init(void)
788{
01d25d46 789 return pci_register_driver(&driver);
1da177e4
LT		 790}
791
792static void __exit alsa_card_als4000_exit(void)
793{
794 pci_unregister_driver(&driver);
795}
796
797module_init(alsa_card_als4000_init)
798module_exit(alsa_card_als4000_exit)
Linux kernel - Deliverables
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