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b3a70d5e AW |
1 | /* |
2 | * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. | |
3 | * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | * | |
19 | * TODO | |
20 | * 4 channel playback for ALS300+ | |
21 | * gameport | |
22 | * mpu401 | |
23 | * opl3 | |
24 | * | |
25 | * NOTES | |
26 | * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to | |
27 | * the position in the current period, NOT the whole buffer. It is important | |
28 | * to know which period we are in so we can calculate the correct pointer. | |
29 | * This is why we always use 2 periods. We can then use a flip-flop variable | |
30 | * to keep track of what period we are in. | |
31 | */ | |
32 | ||
33 | #include <sound/driver.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/interrupt.h> | |
39 | #include <linux/slab.h> | |
40 | ||
41 | #include <asm/io.h> | |
42 | ||
43 | #include <sound/core.h> | |
44 | #include <sound/control.h> | |
45 | #include <sound/initval.h> | |
46 | #include <sound/pcm.h> | |
47 | #include <sound/pcm_params.h> | |
48 | #include <sound/ac97_codec.h> | |
49 | #include <sound/opl3.h> | |
50 | ||
51 | /* snd_als300_set_irq_flag */ | |
52 | #define IRQ_DISABLE 0 | |
53 | #define IRQ_ENABLE 1 | |
54 | ||
55 | /* I/O port layout */ | |
56 | #define AC97_ACCESS 0x00 | |
57 | #define AC97_READ 0x04 | |
58 | #define AC97_STATUS 0x06 | |
59 | #define AC97_DATA_AVAIL (1<<6) | |
60 | #define AC97_BUSY (1<<7) | |
61 | #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ | |
62 | #define IRQ_PLAYBACK (1<<3) | |
63 | #define IRQ_CAPTURE (1<<2) | |
64 | #define GCR_DATA 0x08 | |
65 | #define GCR_INDEX 0x0C | |
66 | #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ | |
67 | #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ | |
68 | #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ | |
69 | ||
70 | /* General Control Registers */ | |
71 | #define PLAYBACK_START 0x80 | |
72 | #define PLAYBACK_END 0x81 | |
73 | #define PLAYBACK_CONTROL 0x82 | |
74 | #define TRANSFER_START (1<<16) | |
75 | #define FIFO_PAUSE (1<<17) | |
76 | #define RECORD_START 0x83 | |
77 | #define RECORD_END 0x84 | |
78 | #define RECORD_CONTROL 0x85 | |
79 | #define DRAM_WRITE_CONTROL 0x8B | |
80 | #define WRITE_TRANS_START (1<<16) | |
81 | #define DRAM_MODE_2 (1<<17) | |
82 | #define MISC_CONTROL 0x8C | |
83 | #define IRQ_SET_BIT (1<<15) | |
84 | #define VMUTE_NORMAL (1<<20) | |
85 | #define MMUTE_NORMAL (1<<21) | |
86 | #define MUS_VOC_VOL 0x8E | |
87 | #define PLAYBACK_BLOCK_COUNTER 0x9A | |
88 | #define RECORD_BLOCK_COUNTER 0x9B | |
89 | ||
90 | #define DEBUG_CALLS 1 | |
91 | #define DEBUG_PLAY_REC 1 | |
92 | ||
93 | #if DEBUG_CALLS | |
94 | #define snd_als300_dbgcalls(format, args...) printk(format, ##args) | |
95 | #define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __FUNCTION__) | |
96 | #define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __FUNCTION__) | |
97 | #else | |
98 | #define snd_als300_dbgcalls(format, args...) | |
99 | #define snd_als300_dbgcallenter() | |
100 | #define snd_als300_dbgcallleave() | |
101 | #endif | |
102 | ||
103 | #if DEBUG_PLAY_REC | |
104 | #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) | |
105 | #else | |
106 | #define snd_als300_dbgplay(format, args...) | |
107 | #endif | |
108 | ||
109 | enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; | |
110 | ||
111 | MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>"); | |
112 | MODULE_DESCRIPTION("Avance Logic ALS300"); | |
113 | MODULE_LICENSE("GPL"); | |
114 | MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}"); | |
115 | ||
116 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; | |
117 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; | |
118 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; | |
119 | ||
120 | struct snd_als300 { | |
121 | unsigned long port; | |
122 | spinlock_t reg_lock; | |
123 | struct snd_card *card; | |
124 | struct pci_dev *pci; | |
125 | ||
126 | struct snd_pcm *pcm; | |
127 | struct snd_pcm_substream *playback_substream; | |
128 | struct snd_pcm_substream *capture_substream; | |
129 | ||
130 | struct snd_ac97 *ac97; | |
131 | struct snd_opl3 *opl3; | |
132 | ||
133 | struct resource *res_port; | |
134 | ||
135 | int irq; | |
136 | ||
137 | int chip_type; /* ALS300 or ALS300+ */ | |
138 | ||
139 | char revision; | |
140 | }; | |
141 | ||
142 | struct snd_als300_substream_data { | |
143 | int period_flipflop; | |
144 | int control_register; | |
145 | int block_counter_register; | |
146 | }; | |
147 | ||
148 | static struct pci_device_id snd_als300_ids[] = { | |
149 | { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, | |
150 | { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, | |
151 | { 0, } | |
152 | }; | |
153 | ||
154 | MODULE_DEVICE_TABLE(pci, snd_als300_ids); | |
155 | ||
156 | static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) | |
157 | { | |
158 | outb(reg, port+GCR_INDEX); | |
159 | return inl(port+GCR_DATA); | |
160 | } | |
161 | ||
162 | static inline void snd_als300_gcr_write(unsigned long port, | |
163 | unsigned short reg, u32 val) | |
164 | { | |
165 | outb(reg, port+GCR_INDEX); | |
166 | outl(val, port+GCR_DATA); | |
167 | } | |
168 | ||
169 | /* Enable/Disable Interrupts */ | |
170 | static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) | |
171 | { | |
172 | u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); | |
173 | snd_als300_dbgcallenter(); | |
174 | ||
175 | /* boolean XOR check, since old vs. new hardware have | |
176 | directly reversed bit setting for ENABLE and DISABLE. | |
177 | ALS300+ acts like newer versions of ALS300 */ | |
178 | if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ | |
179 | (cmd == IRQ_ENABLE)) == 0) | |
180 | tmp |= IRQ_SET_BIT; | |
181 | else | |
182 | tmp &= ~IRQ_SET_BIT; | |
183 | snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); | |
184 | snd_als300_dbgcallleave(); | |
185 | } | |
186 | ||
187 | static int snd_als300_free(struct snd_als300 *chip) | |
188 | { | |
189 | snd_als300_dbgcallenter(); | |
190 | snd_als300_set_irq_flag(chip, IRQ_DISABLE); | |
191 | if (chip->irq >= 0) | |
192 | free_irq(chip->irq, (void *)chip); | |
193 | pci_release_regions(chip->pci); | |
194 | pci_disable_device(chip->pci); | |
195 | kfree(chip); | |
196 | snd_als300_dbgcallleave(); | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static int snd_als300_dev_free(struct snd_device *device) | |
201 | { | |
202 | struct snd_als300 *chip = device->device_data; | |
203 | return snd_als300_free(chip); | |
204 | } | |
205 | ||
206 | static irqreturn_t snd_als300_interrupt(int irq, void *dev_id, | |
207 | struct pt_regs *regs) | |
208 | { | |
209 | u8 status; | |
210 | struct snd_als300 *chip = dev_id; | |
211 | struct snd_als300_substream_data *data; | |
212 | ||
213 | status = inb(chip->port+ALS300_IRQ_STATUS); | |
214 | if (!status) /* shared IRQ, for different device?? Exit ASAP! */ | |
215 | return IRQ_NONE; | |
216 | ||
217 | /* ACK everything ASAP */ | |
218 | outb(status, chip->port+ALS300_IRQ_STATUS); | |
219 | if (status & IRQ_PLAYBACK) { | |
220 | if (chip->pcm && chip->playback_substream) { | |
221 | data = chip->playback_substream->runtime->private_data; | |
222 | data->period_flipflop ^= 1; | |
223 | snd_pcm_period_elapsed(chip->playback_substream); | |
224 | snd_als300_dbgplay("IRQ_PLAYBACK\n"); | |
225 | } | |
226 | } | |
227 | if (status & IRQ_CAPTURE) { | |
228 | if (chip->pcm && chip->capture_substream) { | |
229 | data = chip->capture_substream->runtime->private_data; | |
230 | data->period_flipflop ^= 1; | |
231 | snd_pcm_period_elapsed(chip->capture_substream); | |
232 | snd_als300_dbgplay("IRQ_CAPTURE\n"); | |
233 | } | |
234 | } | |
235 | return IRQ_HANDLED; | |
236 | } | |
237 | ||
238 | static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id, | |
239 | struct pt_regs *regs) | |
240 | { | |
241 | u8 general, mpu, dram; | |
242 | struct snd_als300 *chip = dev_id; | |
243 | struct snd_als300_substream_data *data; | |
244 | ||
245 | general = inb(chip->port+ALS300P_IRQ_STATUS); | |
246 | mpu = inb(chip->port+MPU_IRQ_STATUS); | |
247 | dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); | |
248 | ||
249 | /* shared IRQ, for different device?? Exit ASAP! */ | |
250 | if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) | |
251 | return IRQ_NONE; | |
252 | ||
253 | if (general & IRQ_PLAYBACK) { | |
254 | if (chip->pcm && chip->playback_substream) { | |
255 | outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); | |
256 | data = chip->playback_substream->runtime->private_data; | |
257 | data->period_flipflop ^= 1; | |
258 | snd_pcm_period_elapsed(chip->playback_substream); | |
259 | snd_als300_dbgplay("IRQ_PLAYBACK\n"); | |
260 | } | |
261 | } | |
262 | if (general & IRQ_CAPTURE) { | |
263 | if (chip->pcm && chip->capture_substream) { | |
264 | outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); | |
265 | data = chip->capture_substream->runtime->private_data; | |
266 | data->period_flipflop ^= 1; | |
267 | snd_pcm_period_elapsed(chip->capture_substream); | |
268 | snd_als300_dbgplay("IRQ_CAPTURE\n"); | |
269 | } | |
270 | } | |
271 | /* FIXME: Ack other interrupt types. Not important right now as | |
272 | * those other devices aren't enabled. */ | |
273 | return IRQ_HANDLED; | |
274 | } | |
275 | ||
276 | static void __devexit snd_als300_remove(struct pci_dev *pci) | |
277 | { | |
278 | snd_als300_dbgcallenter(); | |
279 | snd_card_free(pci_get_drvdata(pci)); | |
280 | pci_set_drvdata(pci, NULL); | |
281 | snd_als300_dbgcallleave(); | |
282 | } | |
283 | ||
284 | static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, | |
285 | unsigned short reg) | |
286 | { | |
287 | int i; | |
288 | struct snd_als300 *chip = ac97->private_data; | |
289 | ||
290 | for (i = 0; i < 1000; i++) { | |
291 | if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) | |
292 | break; | |
293 | udelay(10); | |
294 | } | |
295 | outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); | |
296 | ||
297 | for (i = 0; i < 1000; i++) { | |
298 | if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) | |
299 | break; | |
300 | udelay(10); | |
301 | } | |
302 | return inw(chip->port+AC97_READ); | |
303 | } | |
304 | ||
305 | static void snd_als300_ac97_write(struct snd_ac97 *ac97, | |
306 | unsigned short reg, unsigned short val) | |
307 | { | |
308 | int i; | |
309 | struct snd_als300 *chip = ac97->private_data; | |
310 | ||
311 | for (i = 0; i < 1000; i++) { | |
312 | if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) | |
313 | break; | |
314 | udelay(10); | |
315 | } | |
316 | outl((reg << 24) | val, chip->port+AC97_ACCESS); | |
317 | } | |
318 | ||
319 | static int snd_als300_ac97(struct snd_als300 *chip) | |
320 | { | |
321 | struct snd_ac97_bus *bus; | |
322 | struct snd_ac97_template ac97; | |
323 | int err; | |
324 | static struct snd_ac97_bus_ops ops = { | |
325 | .write = snd_als300_ac97_write, | |
326 | .read = snd_als300_ac97_read, | |
327 | }; | |
328 | ||
329 | snd_als300_dbgcallenter(); | |
330 | if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0) | |
331 | return err; | |
332 | ||
333 | memset(&ac97, 0, sizeof(ac97)); | |
334 | ac97.private_data = chip; | |
335 | ||
336 | snd_als300_dbgcallleave(); | |
337 | return snd_ac97_mixer(bus, &ac97, &chip->ac97); | |
338 | } | |
339 | ||
340 | /* hardware definition | |
341 | * | |
342 | * In AC97 mode, we always use 48k/16bit/stereo. | |
343 | * Any request to change data type is ignored by | |
344 | * the card when it is running outside of legacy | |
345 | * mode. | |
346 | */ | |
347 | static struct snd_pcm_hardware snd_als300_playback_hw = | |
348 | { | |
349 | .info = (SNDRV_PCM_INFO_MMAP | | |
350 | SNDRV_PCM_INFO_INTERLEAVED | | |
351 | SNDRV_PCM_INFO_PAUSE | | |
352 | SNDRV_PCM_INFO_MMAP_VALID), | |
353 | .formats = SNDRV_PCM_FMTBIT_S16, | |
354 | .rates = SNDRV_PCM_RATE_48000, | |
355 | .rate_min = 48000, | |
356 | .rate_max = 48000, | |
357 | .channels_min = 2, | |
358 | .channels_max = 2, | |
359 | .buffer_bytes_max = 64 * 1024, | |
360 | .period_bytes_min = 64, | |
361 | .period_bytes_max = 32 * 1024, | |
362 | .periods_min = 2, | |
363 | .periods_max = 2, | |
364 | }; | |
365 | ||
366 | static struct snd_pcm_hardware snd_als300_capture_hw = | |
367 | { | |
368 | .info = (SNDRV_PCM_INFO_MMAP | | |
369 | SNDRV_PCM_INFO_INTERLEAVED | | |
370 | SNDRV_PCM_INFO_PAUSE | | |
371 | SNDRV_PCM_INFO_MMAP_VALID), | |
372 | .formats = SNDRV_PCM_FMTBIT_S16, | |
373 | .rates = SNDRV_PCM_RATE_48000, | |
374 | .rate_min = 48000, | |
375 | .rate_max = 48000, | |
376 | .channels_min = 2, | |
377 | .channels_max = 2, | |
378 | .buffer_bytes_max = 64 * 1024, | |
379 | .period_bytes_min = 64, | |
380 | .period_bytes_max = 32 * 1024, | |
381 | .periods_min = 2, | |
382 | .periods_max = 2, | |
383 | }; | |
384 | ||
385 | static int snd_als300_playback_open(struct snd_pcm_substream *substream) | |
386 | { | |
387 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
388 | struct snd_pcm_runtime *runtime = substream->runtime; | |
389 | struct snd_als300_substream_data *data = kzalloc(sizeof(*data), | |
390 | GFP_KERNEL); | |
391 | ||
392 | snd_als300_dbgcallenter(); | |
393 | chip->playback_substream = substream; | |
394 | runtime->hw = snd_als300_playback_hw; | |
395 | runtime->private_data = data; | |
396 | data->control_register = PLAYBACK_CONTROL; | |
397 | data->block_counter_register = PLAYBACK_BLOCK_COUNTER; | |
398 | snd_als300_dbgcallleave(); | |
399 | return 0; | |
400 | } | |
401 | ||
402 | static int snd_als300_playback_close(struct snd_pcm_substream *substream) | |
403 | { | |
404 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
405 | struct snd_als300_substream_data *data; | |
406 | ||
407 | data = substream->runtime->private_data; | |
408 | snd_als300_dbgcallenter(); | |
409 | kfree(data); | |
410 | chip->playback_substream = NULL; | |
411 | snd_pcm_lib_free_pages(substream); | |
412 | snd_als300_dbgcallleave(); | |
413 | return 0; | |
414 | } | |
415 | ||
416 | static int snd_als300_capture_open(struct snd_pcm_substream *substream) | |
417 | { | |
418 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
419 | struct snd_pcm_runtime *runtime = substream->runtime; | |
420 | struct snd_als300_substream_data *data = kzalloc(sizeof(*data), | |
421 | GFP_KERNEL); | |
422 | ||
423 | snd_als300_dbgcallenter(); | |
424 | chip->capture_substream = substream; | |
425 | runtime->hw = snd_als300_capture_hw; | |
426 | runtime->private_data = data; | |
427 | data->control_register = RECORD_CONTROL; | |
428 | data->block_counter_register = RECORD_BLOCK_COUNTER; | |
429 | snd_als300_dbgcallleave(); | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static int snd_als300_capture_close(struct snd_pcm_substream *substream) | |
434 | { | |
435 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
436 | struct snd_als300_substream_data *data; | |
437 | ||
438 | data = substream->runtime->private_data; | |
439 | snd_als300_dbgcallenter(); | |
440 | kfree(data); | |
441 | chip->capture_substream = NULL; | |
442 | snd_pcm_lib_free_pages(substream); | |
443 | snd_als300_dbgcallleave(); | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream, | |
448 | snd_pcm_hw_params_t * hw_params) | |
449 | { | |
450 | return snd_pcm_lib_malloc_pages(substream, | |
451 | params_buffer_bytes(hw_params)); | |
452 | } | |
453 | ||
454 | static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream) | |
455 | { | |
456 | return snd_pcm_lib_free_pages(substream); | |
457 | } | |
458 | ||
459 | static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) | |
460 | { | |
461 | u32 tmp; | |
462 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
463 | struct snd_pcm_runtime *runtime = substream->runtime; | |
464 | unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); | |
465 | unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); | |
466 | ||
467 | snd_als300_dbgcallenter(); | |
468 | spin_lock_irq(&chip->reg_lock); | |
469 | tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); | |
470 | tmp &= ~TRANSFER_START; | |
471 | ||
472 | snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", | |
473 | period_bytes, buffer_bytes); | |
474 | ||
475 | /* set block size */ | |
476 | tmp &= 0xffff0000; | |
477 | tmp |= period_bytes - 1; | |
478 | snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); | |
479 | ||
480 | /* set dma area */ | |
481 | snd_als300_gcr_write(chip->port, PLAYBACK_START, | |
482 | runtime->dma_addr); | |
483 | snd_als300_gcr_write(chip->port, PLAYBACK_END, | |
484 | runtime->dma_addr + buffer_bytes - 1); | |
485 | spin_unlock_irq(&chip->reg_lock); | |
486 | snd_als300_dbgcallleave(); | |
487 | return 0; | |
488 | } | |
489 | ||
490 | static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) | |
491 | { | |
492 | u32 tmp; | |
493 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
494 | struct snd_pcm_runtime *runtime = substream->runtime; | |
495 | unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); | |
496 | unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); | |
497 | ||
498 | snd_als300_dbgcallenter(); | |
499 | spin_lock_irq(&chip->reg_lock); | |
500 | tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); | |
501 | tmp &= ~TRANSFER_START; | |
502 | ||
503 | snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, | |
504 | buffer_bytes); | |
505 | ||
506 | /* set block size */ | |
507 | tmp &= 0xffff0000; | |
508 | tmp |= period_bytes - 1; | |
509 | ||
510 | /* set dma area */ | |
511 | snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); | |
512 | snd_als300_gcr_write(chip->port, RECORD_START, | |
513 | runtime->dma_addr); | |
514 | snd_als300_gcr_write(chip->port, RECORD_END, | |
515 | runtime->dma_addr + buffer_bytes - 1); | |
516 | spin_unlock_irq(&chip->reg_lock); | |
517 | snd_als300_dbgcallleave(); | |
518 | return 0; | |
519 | } | |
520 | ||
521 | static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) | |
522 | { | |
523 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
524 | u32 tmp; | |
525 | struct snd_als300_substream_data *data; | |
526 | unsigned short reg; | |
527 | int ret = 0; | |
528 | ||
529 | data = substream->runtime->private_data; | |
530 | reg = data->control_register; | |
531 | ||
532 | snd_als300_dbgcallenter(); | |
533 | spin_lock(&chip->reg_lock); | |
534 | switch (cmd) { | |
535 | case SNDRV_PCM_TRIGGER_START: | |
536 | case SNDRV_PCM_TRIGGER_RESUME: | |
537 | tmp = snd_als300_gcr_read(chip->port, reg); | |
538 | data->period_flipflop = 1; | |
539 | snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); | |
540 | snd_als300_dbgplay("TRIGGER START\n"); | |
541 | break; | |
542 | case SNDRV_PCM_TRIGGER_STOP: | |
543 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
544 | tmp = snd_als300_gcr_read(chip->port, reg); | |
545 | snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); | |
546 | snd_als300_dbgplay("TRIGGER STOP\n"); | |
547 | break; | |
548 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
549 | tmp = snd_als300_gcr_read(chip->port, reg); | |
550 | snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); | |
551 | snd_als300_dbgplay("TRIGGER PAUSE\n"); | |
552 | break; | |
553 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
554 | tmp = snd_als300_gcr_read(chip->port, reg); | |
555 | snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); | |
556 | snd_als300_dbgplay("TRIGGER RELEASE\n"); | |
557 | break; | |
558 | default: | |
559 | snd_als300_dbgplay("TRIGGER INVALID\n"); | |
560 | ret = -EINVAL; | |
561 | } | |
562 | spin_unlock(&chip->reg_lock); | |
563 | snd_als300_dbgcallleave(); | |
564 | return ret; | |
565 | } | |
566 | ||
567 | static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) | |
568 | { | |
569 | u16 current_ptr; | |
570 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); | |
571 | struct snd_als300_substream_data *data; | |
572 | unsigned short period_bytes; | |
573 | ||
574 | data = substream->runtime->private_data; | |
575 | period_bytes = snd_pcm_lib_period_bytes(substream); | |
576 | ||
577 | snd_als300_dbgcallenter(); | |
578 | spin_lock(&chip->reg_lock); | |
579 | current_ptr = (u16) snd_als300_gcr_read(chip->port, | |
580 | data->block_counter_register) + 4; | |
581 | spin_unlock(&chip->reg_lock); | |
582 | if (current_ptr > period_bytes) | |
583 | current_ptr = 0; | |
584 | else | |
585 | current_ptr = period_bytes - current_ptr; | |
586 | ||
587 | if (data->period_flipflop == 0) | |
588 | current_ptr += period_bytes; | |
589 | snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr); | |
590 | snd_als300_dbgcallleave(); | |
591 | return bytes_to_frames(substream->runtime, current_ptr); | |
592 | } | |
593 | ||
594 | static struct snd_pcm_ops snd_als300_playback_ops = { | |
595 | .open = snd_als300_playback_open, | |
596 | .close = snd_als300_playback_close, | |
597 | .ioctl = snd_pcm_lib_ioctl, | |
598 | .hw_params = snd_als300_pcm_hw_params, | |
599 | .hw_free = snd_als300_pcm_hw_free, | |
600 | .prepare = snd_als300_playback_prepare, | |
601 | .trigger = snd_als300_trigger, | |
602 | .pointer = snd_als300_pointer, | |
603 | }; | |
604 | ||
605 | static struct snd_pcm_ops snd_als300_capture_ops = { | |
606 | .open = snd_als300_capture_open, | |
607 | .close = snd_als300_capture_close, | |
608 | .ioctl = snd_pcm_lib_ioctl, | |
609 | .hw_params = snd_als300_pcm_hw_params, | |
610 | .hw_free = snd_als300_pcm_hw_free, | |
611 | .prepare = snd_als300_capture_prepare, | |
612 | .trigger = snd_als300_trigger, | |
613 | .pointer = snd_als300_pointer, | |
614 | }; | |
615 | ||
616 | static int __devinit snd_als300_new_pcm(struct snd_als300 *chip) | |
617 | { | |
618 | struct snd_pcm *pcm; | |
619 | int err; | |
620 | ||
621 | snd_als300_dbgcallenter(); | |
622 | err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm); | |
623 | if (err < 0) | |
624 | return err; | |
625 | pcm->private_data = chip; | |
626 | strcpy(pcm->name, "ALS300"); | |
627 | chip->pcm = pcm; | |
628 | ||
629 | /* set operators */ | |
630 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
631 | &snd_als300_playback_ops); | |
632 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
633 | &snd_als300_capture_ops); | |
634 | ||
635 | /* pre-allocation of buffers */ | |
636 | snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, | |
637 | snd_dma_pci_data(chip->pci), 64*1024, 64*1024); | |
638 | snd_als300_dbgcallleave(); | |
639 | return 0; | |
640 | } | |
641 | ||
642 | static void snd_als300_init(struct snd_als300 *chip) | |
643 | { | |
644 | unsigned long flags; | |
645 | u32 tmp; | |
646 | ||
647 | snd_als300_dbgcallenter(); | |
648 | spin_lock_irqsave(&chip->reg_lock, flags); | |
649 | chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16) | |
650 | & 0x0000000F; | |
651 | /* Setup DRAM */ | |
652 | tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL); | |
653 | snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL, | |
654 | (tmp | DRAM_MODE_2) | |
655 | & ~WRITE_TRANS_START); | |
656 | ||
657 | /* Enable IRQ output */ | |
658 | snd_als300_set_irq_flag(chip, IRQ_ENABLE); | |
659 | ||
660 | /* Unmute hardware devices so their outputs get routed to | |
661 | * the onboard mixer */ | |
662 | tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); | |
663 | snd_als300_gcr_write(chip->port, MISC_CONTROL, | |
664 | tmp | VMUTE_NORMAL | MMUTE_NORMAL); | |
665 | ||
666 | /* Reset volumes */ | |
667 | snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0); | |
668 | ||
669 | /* Make sure playback transfer is stopped */ | |
670 | tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); | |
671 | snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, | |
672 | tmp & ~TRANSFER_START); | |
673 | spin_unlock_irqrestore(&chip->reg_lock, flags); | |
674 | snd_als300_dbgcallleave(); | |
675 | } | |
676 | ||
677 | static int __devinit snd_als300_create(snd_card_t *card, | |
678 | struct pci_dev *pci, int chip_type, | |
679 | struct snd_als300 **rchip) | |
680 | { | |
681 | struct snd_als300 *chip; | |
682 | void *irq_handler; | |
683 | int err; | |
684 | ||
685 | static snd_device_ops_t ops = { | |
686 | .dev_free = snd_als300_dev_free, | |
687 | }; | |
688 | *rchip = NULL; | |
689 | ||
690 | snd_als300_dbgcallenter(); | |
691 | if ((err = pci_enable_device(pci)) < 0) | |
692 | return err; | |
693 | ||
694 | if (pci_set_dma_mask(pci, 0x0fffffff) < 0 || | |
695 | pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) { | |
696 | printk(KERN_ERR "error setting 28bit DMA mask\n"); | |
697 | pci_disable_device(pci); | |
698 | return -ENXIO; | |
699 | } | |
700 | pci_set_master(pci); | |
701 | ||
702 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); | |
703 | if (chip == NULL) { | |
704 | pci_disable_device(pci); | |
705 | return -ENOMEM; | |
706 | } | |
707 | ||
708 | chip->card = card; | |
709 | chip->pci = pci; | |
710 | chip->irq = -1; | |
711 | chip->chip_type = chip_type; | |
712 | spin_lock_init(&chip->reg_lock); | |
713 | ||
714 | if ((err = pci_request_regions(pci, "ALS300")) < 0) { | |
715 | kfree(chip); | |
716 | pci_disable_device(pci); | |
717 | return err; | |
718 | } | |
719 | chip->port = pci_resource_start(pci, 0); | |
720 | ||
721 | if (chip->chip_type == DEVICE_ALS300_PLUS) | |
722 | irq_handler = snd_als300plus_interrupt; | |
723 | else | |
724 | irq_handler = snd_als300_interrupt; | |
725 | ||
726 | if (request_irq(pci->irq, irq_handler, SA_INTERRUPT|SA_SHIRQ, | |
727 | card->shortname, (void *)chip)) { | |
728 | snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq); | |
729 | snd_als300_free(chip); | |
730 | return -EBUSY; | |
731 | } | |
732 | chip->irq = pci->irq; | |
733 | ||
734 | ||
735 | snd_als300_init(chip); | |
736 | ||
737 | if (snd_als300_ac97(chip) < 0) { | |
738 | snd_printk(KERN_WARNING "Could not create ac97\n"); | |
739 | snd_als300_free(chip); | |
740 | return err; | |
741 | } | |
742 | ||
743 | if ((err = snd_als300_new_pcm(chip)) < 0) { | |
744 | snd_printk(KERN_WARNING "Could not create PCM\n"); | |
745 | snd_als300_free(chip); | |
746 | return err; | |
747 | } | |
748 | ||
749 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, | |
750 | chip, &ops)) < 0) { | |
751 | snd_als300_free(chip); | |
752 | return err; | |
753 | } | |
754 | ||
755 | snd_card_set_dev(card, &pci->dev); | |
756 | ||
757 | *rchip = chip; | |
758 | snd_als300_dbgcallleave(); | |
759 | return 0; | |
760 | } | |
761 | ||
762 | #ifdef CONFIG_PM | |
763 | static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state) | |
764 | { | |
765 | struct snd_card *card = pci_get_drvdata(pci); | |
766 | struct snd_als300 *chip = card->private_data; | |
767 | ||
768 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); | |
769 | snd_pcm_suspend_all(chip->pcm); | |
770 | snd_ac97_suspend(chip->ac97); | |
771 | ||
772 | pci_set_power_state(pci, PCI_D3hot); | |
773 | pci_disable_device(pci); | |
774 | pci_save_state(pci); | |
775 | return 0; | |
776 | } | |
777 | ||
778 | static int snd_als300_resume(struct pci_dev *pci) | |
779 | { | |
780 | struct snd_card *card = pci_get_drvdata(pci); | |
781 | struct snd_als300 *chip = card->private_data; | |
782 | ||
783 | pci_restore_state(pci); | |
784 | pci_enable_device(pci); | |
785 | pci_set_power_state(pci, PCI_D0); | |
786 | pci_set_master(pci); | |
787 | ||
788 | snd_als300_init(chip); | |
789 | snd_ac97_resume(chip->ac97); | |
790 | ||
791 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); | |
792 | return 0; | |
793 | } | |
794 | #endif | |
795 | ||
796 | static int __devinit snd_als300_probe(struct pci_dev *pci, | |
797 | const struct pci_device_id *pci_id) | |
798 | { | |
799 | static int dev; | |
800 | struct snd_card *card; | |
801 | struct snd_als300 *chip; | |
802 | int err, chip_type; | |
803 | ||
804 | if (dev >= SNDRV_CARDS) | |
805 | return -ENODEV; | |
806 | if (!enable[dev]) { | |
807 | dev++; | |
808 | return -ENOENT; | |
809 | } | |
810 | ||
811 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); | |
812 | ||
813 | if (card == NULL) | |
814 | return -ENOMEM; | |
815 | ||
816 | chip_type = pci_id->driver_data; | |
817 | ||
818 | if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) { | |
819 | snd_card_free(card); | |
820 | return err; | |
821 | } | |
822 | card->private_data = chip; | |
823 | ||
824 | strcpy(card->driver, "ALS300"); | |
825 | if (chip->chip_type == DEVICE_ALS300_PLUS) | |
826 | /* don't know much about ALS300+ yet | |
827 | * print revision number for now */ | |
828 | sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision); | |
829 | else | |
830 | sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' + | |
831 | chip->revision - 1); | |
832 | sprintf(card->longname, "%s at 0x%lx irq %i", | |
833 | card->shortname, chip->port, chip->irq); | |
834 | ||
835 | if ((err = snd_card_register(card)) < 0) { | |
836 | snd_card_free(card); | |
837 | return err; | |
838 | } | |
839 | pci_set_drvdata(pci, card); | |
840 | dev++; | |
841 | return 0; | |
842 | } | |
843 | ||
844 | static struct pci_driver driver = { | |
845 | .name = "ALS300", | |
846 | .id_table = snd_als300_ids, | |
847 | .probe = snd_als300_probe, | |
848 | .remove = __devexit_p(snd_als300_remove), | |
849 | #ifdef CONFIG_PM | |
850 | .suspend = snd_als300_suspend, | |
851 | .resume = snd_als300_resume, | |
852 | #endif | |
853 | }; | |
854 | ||
855 | static int __init alsa_card_als300_init(void) | |
856 | { | |
857 | return pci_register_driver(&driver); | |
858 | } | |
859 | ||
860 | static void __exit alsa_card_als300_exit(void) | |
861 | { | |
862 | pci_unregister_driver(&driver); | |
863 | } | |
864 | ||
865 | module_init(alsa_card_als300_init) | |
866 | module_exit(alsa_card_als300_exit) |