1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. |
4 | * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net> |
5 | * |
6 | * TODO |
7 | * 4 channel playback for ALS300+ |
8 | * gameport |
9 | * mpu401 |
10 | * opl3 |
11 | * |
12 | * NOTES |
13 | * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to |
14 | * the position in the current period, NOT the whole buffer. It is important |
15 | * to know which period we are in so we can calculate the correct pointer. |
16 | * This is why we always use 2 periods. We can then use a flip-flop variable |
17 | * to keep track of what period we are in. |
18 | */ |
19 | |
20 | #include <linux/delay.h> |
21 | #include <linux/init.h> |
22 | #include <linux/module.h> |
23 | #include <linux/pci.h> |
24 | #include <linux/dma-mapping.h> |
25 | #include <linux/interrupt.h> |
26 | #include <linux/slab.h> |
27 | #include <linux/io.h> |
28 | |
29 | #include <sound/core.h> |
30 | #include <sound/control.h> |
31 | #include <sound/initval.h> |
32 | #include <sound/pcm.h> |
33 | #include <sound/pcm_params.h> |
34 | #include <sound/ac97_codec.h> |
35 | #include <sound/opl3.h> |
36 | |
37 | /* snd_als300_set_irq_flag */ |
38 | #define IRQ_DISABLE 0 |
39 | #define IRQ_ENABLE 1 |
40 | |
41 | /* I/O port layout */ |
42 | #define AC97_ACCESS 0x00 |
43 | #define AC97_READ 0x04 |
44 | #define AC97_STATUS 0x06 |
45 | #define AC97_DATA_AVAIL (1<<6) |
46 | #define AC97_BUSY (1<<7) |
47 | #define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ |
48 | #define IRQ_PLAYBACK (1<<3) |
49 | #define IRQ_CAPTURE (1<<2) |
50 | #define GCR_DATA 0x08 |
51 | #define GCR_INDEX 0x0C |
52 | #define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ |
53 | #define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ |
54 | #define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ |
55 | |
56 | /* General Control Registers */ |
57 | #define PLAYBACK_START 0x80 |
58 | #define PLAYBACK_END 0x81 |
59 | #define PLAYBACK_CONTROL 0x82 |
60 | #define TRANSFER_START (1<<16) |
61 | #define FIFO_PAUSE (1<<17) |
62 | #define RECORD_START 0x83 |
63 | #define RECORD_END 0x84 |
64 | #define RECORD_CONTROL 0x85 |
65 | #define DRAM_WRITE_CONTROL 0x8B |
66 | #define WRITE_TRANS_START (1<<16) |
67 | #define DRAM_MODE_2 (1<<17) |
68 | #define MISC_CONTROL 0x8C |
69 | #define IRQ_SET_BIT (1<<15) |
70 | #define VMUTE_NORMAL (1<<20) |
71 | #define MMUTE_NORMAL (1<<21) |
72 | #define MUS_VOC_VOL 0x8E |
73 | #define PLAYBACK_BLOCK_COUNTER 0x9A |
74 | #define RECORD_BLOCK_COUNTER 0x9B |
75 | |
76 | #define DEBUG_PLAY_REC 0 |
77 | |
78 | #if DEBUG_PLAY_REC |
79 | #define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) |
80 | #else |
81 | #define snd_als300_dbgplay(format, args...) |
82 | #endif |
83 | |
84 | enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; |
85 | |
86 | MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>" ); |
87 | MODULE_DESCRIPTION("Avance Logic ALS300" ); |
88 | MODULE_LICENSE("GPL" ); |
89 | |
90 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
91 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
92 | static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
93 | |
94 | module_param_array(index, int, NULL, 0444); |
95 | MODULE_PARM_DESC(index, "Index value for ALS300 sound card." ); |
96 | module_param_array(id, charp, NULL, 0444); |
97 | MODULE_PARM_DESC(id, "ID string for ALS300 sound card." ); |
98 | module_param_array(enable, bool, NULL, 0444); |
99 | MODULE_PARM_DESC(enable, "Enable ALS300 sound card." ); |
100 | |
101 | struct snd_als300 { |
102 | unsigned long port; |
103 | spinlock_t reg_lock; |
104 | struct snd_card *card; |
105 | struct pci_dev *pci; |
106 | |
107 | struct snd_pcm *pcm; |
108 | struct snd_pcm_substream *playback_substream; |
109 | struct snd_pcm_substream *capture_substream; |
110 | |
111 | struct snd_ac97 *ac97; |
112 | struct snd_opl3 *opl3; |
113 | |
114 | struct resource *res_port; |
115 | |
116 | int irq; |
117 | |
118 | int chip_type; /* ALS300 or ALS300+ */ |
119 | |
120 | char revision; |
121 | }; |
122 | |
123 | struct snd_als300_substream_data { |
124 | int period_flipflop; |
125 | int control_register; |
126 | int block_counter_register; |
127 | }; |
128 | |
129 | static const struct pci_device_id snd_als300_ids[] = { |
130 | { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, |
131 | { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, |
132 | { 0, } |
133 | }; |
134 | |
135 | MODULE_DEVICE_TABLE(pci, snd_als300_ids); |
136 | |
137 | static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) |
138 | { |
139 | outb(value: reg, port: port+GCR_INDEX); |
140 | return inl(port: port+GCR_DATA); |
141 | } |
142 | |
143 | static inline void snd_als300_gcr_write(unsigned long port, |
144 | unsigned short reg, u32 val) |
145 | { |
146 | outb(value: reg, port: port+GCR_INDEX); |
147 | outl(value: val, port: port+GCR_DATA); |
148 | } |
149 | |
150 | /* Enable/Disable Interrupts */ |
151 | static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) |
152 | { |
153 | u32 tmp = snd_als300_gcr_read(port: chip->port, MISC_CONTROL); |
154 | |
155 | /* boolean XOR check, since old vs. new hardware have |
156 | directly reversed bit setting for ENABLE and DISABLE. |
157 | ALS300+ acts like newer versions of ALS300 */ |
158 | if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ |
159 | (cmd == IRQ_ENABLE)) == 0) |
160 | tmp |= IRQ_SET_BIT; |
161 | else |
162 | tmp &= ~IRQ_SET_BIT; |
163 | snd_als300_gcr_write(port: chip->port, MISC_CONTROL, val: tmp); |
164 | } |
165 | |
166 | static void snd_als300_free(struct snd_card *card) |
167 | { |
168 | struct snd_als300 *chip = card->private_data; |
169 | |
170 | snd_als300_set_irq_flag(chip, IRQ_DISABLE); |
171 | } |
172 | |
173 | static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) |
174 | { |
175 | u8 status; |
176 | struct snd_als300 *chip = dev_id; |
177 | struct snd_als300_substream_data *data; |
178 | |
179 | status = inb(port: chip->port+ALS300_IRQ_STATUS); |
180 | if (!status) /* shared IRQ, for different device?? Exit ASAP! */ |
181 | return IRQ_NONE; |
182 | |
183 | /* ACK everything ASAP */ |
184 | outb(value: status, port: chip->port+ALS300_IRQ_STATUS); |
185 | if (status & IRQ_PLAYBACK) { |
186 | if (chip->pcm && chip->playback_substream) { |
187 | data = chip->playback_substream->runtime->private_data; |
188 | data->period_flipflop ^= 1; |
189 | snd_pcm_period_elapsed(substream: chip->playback_substream); |
190 | snd_als300_dbgplay("IRQ_PLAYBACK\n" ); |
191 | } |
192 | } |
193 | if (status & IRQ_CAPTURE) { |
194 | if (chip->pcm && chip->capture_substream) { |
195 | data = chip->capture_substream->runtime->private_data; |
196 | data->period_flipflop ^= 1; |
197 | snd_pcm_period_elapsed(substream: chip->capture_substream); |
198 | snd_als300_dbgplay("IRQ_CAPTURE\n" ); |
199 | } |
200 | } |
201 | return IRQ_HANDLED; |
202 | } |
203 | |
204 | static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) |
205 | { |
206 | u8 general, mpu, dram; |
207 | struct snd_als300 *chip = dev_id; |
208 | struct snd_als300_substream_data *data; |
209 | |
210 | general = inb(port: chip->port+ALS300P_IRQ_STATUS); |
211 | mpu = inb(port: chip->port+MPU_IRQ_STATUS); |
212 | dram = inb(port: chip->port+ALS300P_DRAM_IRQ_STATUS); |
213 | |
214 | /* shared IRQ, for different device?? Exit ASAP! */ |
215 | if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) |
216 | return IRQ_NONE; |
217 | |
218 | if (general & IRQ_PLAYBACK) { |
219 | if (chip->pcm && chip->playback_substream) { |
220 | outb(IRQ_PLAYBACK, port: chip->port+ALS300P_IRQ_STATUS); |
221 | data = chip->playback_substream->runtime->private_data; |
222 | data->period_flipflop ^= 1; |
223 | snd_pcm_period_elapsed(substream: chip->playback_substream); |
224 | snd_als300_dbgplay("IRQ_PLAYBACK\n" ); |
225 | } |
226 | } |
227 | if (general & IRQ_CAPTURE) { |
228 | if (chip->pcm && chip->capture_substream) { |
229 | outb(IRQ_CAPTURE, port: chip->port+ALS300P_IRQ_STATUS); |
230 | data = chip->capture_substream->runtime->private_data; |
231 | data->period_flipflop ^= 1; |
232 | snd_pcm_period_elapsed(substream: chip->capture_substream); |
233 | snd_als300_dbgplay("IRQ_CAPTURE\n" ); |
234 | } |
235 | } |
236 | /* FIXME: Ack other interrupt types. Not important right now as |
237 | * those other devices aren't enabled. */ |
238 | return IRQ_HANDLED; |
239 | } |
240 | |
241 | static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, |
242 | unsigned short reg) |
243 | { |
244 | int i; |
245 | struct snd_als300 *chip = ac97->private_data; |
246 | |
247 | for (i = 0; i < 1000; i++) { |
248 | if ((inb(port: chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) |
249 | break; |
250 | udelay(10); |
251 | } |
252 | outl(value: (reg << 24) | (1 << 31), port: chip->port+AC97_ACCESS); |
253 | |
254 | for (i = 0; i < 1000; i++) { |
255 | if ((inb(port: chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) |
256 | break; |
257 | udelay(10); |
258 | } |
259 | return inw(port: chip->port+AC97_READ); |
260 | } |
261 | |
262 | static void snd_als300_ac97_write(struct snd_ac97 *ac97, |
263 | unsigned short reg, unsigned short val) |
264 | { |
265 | int i; |
266 | struct snd_als300 *chip = ac97->private_data; |
267 | |
268 | for (i = 0; i < 1000; i++) { |
269 | if ((inb(port: chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) |
270 | break; |
271 | udelay(10); |
272 | } |
273 | outl(value: (reg << 24) | val, port: chip->port+AC97_ACCESS); |
274 | } |
275 | |
276 | static int snd_als300_ac97(struct snd_als300 *chip) |
277 | { |
278 | struct snd_ac97_bus *bus; |
279 | struct snd_ac97_template ac97; |
280 | int err; |
281 | static const struct snd_ac97_bus_ops ops = { |
282 | .write = snd_als300_ac97_write, |
283 | .read = snd_als300_ac97_read, |
284 | }; |
285 | |
286 | err = snd_ac97_bus(card: chip->card, num: 0, ops: &ops, NULL, rbus: &bus); |
287 | if (err < 0) |
288 | return err; |
289 | |
290 | memset(&ac97, 0, sizeof(ac97)); |
291 | ac97.private_data = chip; |
292 | |
293 | return snd_ac97_mixer(bus, template: &ac97, rac97: &chip->ac97); |
294 | } |
295 | |
296 | /* hardware definition |
297 | * |
298 | * In AC97 mode, we always use 48k/16bit/stereo. |
299 | * Any request to change data type is ignored by |
300 | * the card when it is running outside of legacy |
301 | * mode. |
302 | */ |
303 | static const struct snd_pcm_hardware snd_als300_playback_hw = |
304 | { |
305 | .info = (SNDRV_PCM_INFO_MMAP | |
306 | SNDRV_PCM_INFO_INTERLEAVED | |
307 | SNDRV_PCM_INFO_PAUSE | |
308 | SNDRV_PCM_INFO_MMAP_VALID), |
309 | .formats = SNDRV_PCM_FMTBIT_S16, |
310 | .rates = SNDRV_PCM_RATE_48000, |
311 | .rate_min = 48000, |
312 | .rate_max = 48000, |
313 | .channels_min = 2, |
314 | .channels_max = 2, |
315 | .buffer_bytes_max = 64 * 1024, |
316 | .period_bytes_min = 64, |
317 | .period_bytes_max = 32 * 1024, |
318 | .periods_min = 2, |
319 | .periods_max = 2, |
320 | }; |
321 | |
322 | static const struct snd_pcm_hardware snd_als300_capture_hw = |
323 | { |
324 | .info = (SNDRV_PCM_INFO_MMAP | |
325 | SNDRV_PCM_INFO_INTERLEAVED | |
326 | SNDRV_PCM_INFO_PAUSE | |
327 | SNDRV_PCM_INFO_MMAP_VALID), |
328 | .formats = SNDRV_PCM_FMTBIT_S16, |
329 | .rates = SNDRV_PCM_RATE_48000, |
330 | .rate_min = 48000, |
331 | .rate_max = 48000, |
332 | .channels_min = 2, |
333 | .channels_max = 2, |
334 | .buffer_bytes_max = 64 * 1024, |
335 | .period_bytes_min = 64, |
336 | .period_bytes_max = 32 * 1024, |
337 | .periods_min = 2, |
338 | .periods_max = 2, |
339 | }; |
340 | |
341 | static int snd_als300_playback_open(struct snd_pcm_substream *substream) |
342 | { |
343 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
344 | struct snd_pcm_runtime *runtime = substream->runtime; |
345 | struct snd_als300_substream_data *data = kzalloc(size: sizeof(*data), |
346 | GFP_KERNEL); |
347 | |
348 | if (!data) |
349 | return -ENOMEM; |
350 | chip->playback_substream = substream; |
351 | runtime->hw = snd_als300_playback_hw; |
352 | runtime->private_data = data; |
353 | data->control_register = PLAYBACK_CONTROL; |
354 | data->block_counter_register = PLAYBACK_BLOCK_COUNTER; |
355 | return 0; |
356 | } |
357 | |
358 | static int snd_als300_playback_close(struct snd_pcm_substream *substream) |
359 | { |
360 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
361 | struct snd_als300_substream_data *data; |
362 | |
363 | data = substream->runtime->private_data; |
364 | kfree(objp: data); |
365 | chip->playback_substream = NULL; |
366 | return 0; |
367 | } |
368 | |
369 | static int snd_als300_capture_open(struct snd_pcm_substream *substream) |
370 | { |
371 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
372 | struct snd_pcm_runtime *runtime = substream->runtime; |
373 | struct snd_als300_substream_data *data = kzalloc(size: sizeof(*data), |
374 | GFP_KERNEL); |
375 | |
376 | if (!data) |
377 | return -ENOMEM; |
378 | chip->capture_substream = substream; |
379 | runtime->hw = snd_als300_capture_hw; |
380 | runtime->private_data = data; |
381 | data->control_register = RECORD_CONTROL; |
382 | data->block_counter_register = RECORD_BLOCK_COUNTER; |
383 | return 0; |
384 | } |
385 | |
386 | static int snd_als300_capture_close(struct snd_pcm_substream *substream) |
387 | { |
388 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
389 | struct snd_als300_substream_data *data; |
390 | |
391 | data = substream->runtime->private_data; |
392 | kfree(objp: data); |
393 | chip->capture_substream = NULL; |
394 | return 0; |
395 | } |
396 | |
397 | static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) |
398 | { |
399 | u32 tmp; |
400 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
401 | struct snd_pcm_runtime *runtime = substream->runtime; |
402 | unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); |
403 | unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); |
404 | |
405 | spin_lock_irq(lock: &chip->reg_lock); |
406 | tmp = snd_als300_gcr_read(port: chip->port, PLAYBACK_CONTROL); |
407 | tmp &= ~TRANSFER_START; |
408 | |
409 | snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n" , |
410 | period_bytes, buffer_bytes); |
411 | |
412 | /* set block size */ |
413 | tmp &= 0xffff0000; |
414 | tmp |= period_bytes - 1; |
415 | snd_als300_gcr_write(port: chip->port, PLAYBACK_CONTROL, val: tmp); |
416 | |
417 | /* set dma area */ |
418 | snd_als300_gcr_write(port: chip->port, PLAYBACK_START, |
419 | val: runtime->dma_addr); |
420 | snd_als300_gcr_write(port: chip->port, PLAYBACK_END, |
421 | val: runtime->dma_addr + buffer_bytes - 1); |
422 | spin_unlock_irq(lock: &chip->reg_lock); |
423 | return 0; |
424 | } |
425 | |
426 | static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) |
427 | { |
428 | u32 tmp; |
429 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
430 | struct snd_pcm_runtime *runtime = substream->runtime; |
431 | unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); |
432 | unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); |
433 | |
434 | spin_lock_irq(lock: &chip->reg_lock); |
435 | tmp = snd_als300_gcr_read(port: chip->port, RECORD_CONTROL); |
436 | tmp &= ~TRANSFER_START; |
437 | |
438 | snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n" , period_bytes, |
439 | buffer_bytes); |
440 | |
441 | /* set block size */ |
442 | tmp &= 0xffff0000; |
443 | tmp |= period_bytes - 1; |
444 | |
445 | /* set dma area */ |
446 | snd_als300_gcr_write(port: chip->port, RECORD_CONTROL, val: tmp); |
447 | snd_als300_gcr_write(port: chip->port, RECORD_START, |
448 | val: runtime->dma_addr); |
449 | snd_als300_gcr_write(port: chip->port, RECORD_END, |
450 | val: runtime->dma_addr + buffer_bytes - 1); |
451 | spin_unlock_irq(lock: &chip->reg_lock); |
452 | return 0; |
453 | } |
454 | |
455 | static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) |
456 | { |
457 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
458 | u32 tmp; |
459 | struct snd_als300_substream_data *data; |
460 | unsigned short reg; |
461 | int ret = 0; |
462 | |
463 | data = substream->runtime->private_data; |
464 | reg = data->control_register; |
465 | |
466 | spin_lock(lock: &chip->reg_lock); |
467 | switch (cmd) { |
468 | case SNDRV_PCM_TRIGGER_START: |
469 | case SNDRV_PCM_TRIGGER_RESUME: |
470 | tmp = snd_als300_gcr_read(port: chip->port, reg); |
471 | data->period_flipflop = 1; |
472 | snd_als300_gcr_write(port: chip->port, reg, val: tmp | TRANSFER_START); |
473 | snd_als300_dbgplay("TRIGGER START\n" ); |
474 | break; |
475 | case SNDRV_PCM_TRIGGER_STOP: |
476 | case SNDRV_PCM_TRIGGER_SUSPEND: |
477 | tmp = snd_als300_gcr_read(port: chip->port, reg); |
478 | snd_als300_gcr_write(port: chip->port, reg, val: tmp & ~TRANSFER_START); |
479 | snd_als300_dbgplay("TRIGGER STOP\n" ); |
480 | break; |
481 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
482 | tmp = snd_als300_gcr_read(port: chip->port, reg); |
483 | snd_als300_gcr_write(port: chip->port, reg, val: tmp | FIFO_PAUSE); |
484 | snd_als300_dbgplay("TRIGGER PAUSE\n" ); |
485 | break; |
486 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
487 | tmp = snd_als300_gcr_read(port: chip->port, reg); |
488 | snd_als300_gcr_write(port: chip->port, reg, val: tmp & ~FIFO_PAUSE); |
489 | snd_als300_dbgplay("TRIGGER RELEASE\n" ); |
490 | break; |
491 | default: |
492 | snd_als300_dbgplay("TRIGGER INVALID\n" ); |
493 | ret = -EINVAL; |
494 | } |
495 | spin_unlock(lock: &chip->reg_lock); |
496 | return ret; |
497 | } |
498 | |
499 | static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) |
500 | { |
501 | u16 current_ptr; |
502 | struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
503 | struct snd_als300_substream_data *data; |
504 | unsigned short period_bytes; |
505 | |
506 | data = substream->runtime->private_data; |
507 | period_bytes = snd_pcm_lib_period_bytes(substream); |
508 | |
509 | spin_lock(lock: &chip->reg_lock); |
510 | current_ptr = (u16) snd_als300_gcr_read(port: chip->port, |
511 | reg: data->block_counter_register) + 4; |
512 | spin_unlock(lock: &chip->reg_lock); |
513 | if (current_ptr > period_bytes) |
514 | current_ptr = 0; |
515 | else |
516 | current_ptr = period_bytes - current_ptr; |
517 | |
518 | if (data->period_flipflop == 0) |
519 | current_ptr += period_bytes; |
520 | snd_als300_dbgplay("Pointer (bytes): %d\n" , current_ptr); |
521 | return bytes_to_frames(runtime: substream->runtime, size: current_ptr); |
522 | } |
523 | |
524 | static const struct snd_pcm_ops snd_als300_playback_ops = { |
525 | .open = snd_als300_playback_open, |
526 | .close = snd_als300_playback_close, |
527 | .prepare = snd_als300_playback_prepare, |
528 | .trigger = snd_als300_trigger, |
529 | .pointer = snd_als300_pointer, |
530 | }; |
531 | |
532 | static const struct snd_pcm_ops snd_als300_capture_ops = { |
533 | .open = snd_als300_capture_open, |
534 | .close = snd_als300_capture_close, |
535 | .prepare = snd_als300_capture_prepare, |
536 | .trigger = snd_als300_trigger, |
537 | .pointer = snd_als300_pointer, |
538 | }; |
539 | |
540 | static int snd_als300_new_pcm(struct snd_als300 *chip) |
541 | { |
542 | struct snd_pcm *pcm; |
543 | int err; |
544 | |
545 | err = snd_pcm_new(card: chip->card, id: "ALS300" , device: 0, playback_count: 1, capture_count: 1, rpcm: &pcm); |
546 | if (err < 0) |
547 | return err; |
548 | pcm->private_data = chip; |
549 | strcpy(p: pcm->name, q: "ALS300" ); |
550 | chip->pcm = pcm; |
551 | |
552 | /* set operators */ |
553 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_PLAYBACK, |
554 | ops: &snd_als300_playback_ops); |
555 | snd_pcm_set_ops(pcm, direction: SNDRV_PCM_STREAM_CAPTURE, |
556 | ops: &snd_als300_capture_ops); |
557 | |
558 | /* pre-allocation of buffers */ |
559 | snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, data: &chip->pci->dev, |
560 | size: 64*1024, max: 64*1024); |
561 | return 0; |
562 | } |
563 | |
564 | static void snd_als300_init(struct snd_als300 *chip) |
565 | { |
566 | unsigned long flags; |
567 | u32 tmp; |
568 | |
569 | spin_lock_irqsave(&chip->reg_lock, flags); |
570 | chip->revision = (snd_als300_gcr_read(port: chip->port, MISC_CONTROL) >> 16) |
571 | & 0x0000000F; |
572 | /* Setup DRAM */ |
573 | tmp = snd_als300_gcr_read(port: chip->port, DRAM_WRITE_CONTROL); |
574 | snd_als300_gcr_write(port: chip->port, DRAM_WRITE_CONTROL, |
575 | val: (tmp | DRAM_MODE_2) |
576 | & ~WRITE_TRANS_START); |
577 | |
578 | /* Enable IRQ output */ |
579 | snd_als300_set_irq_flag(chip, IRQ_ENABLE); |
580 | |
581 | /* Unmute hardware devices so their outputs get routed to |
582 | * the onboard mixer */ |
583 | tmp = snd_als300_gcr_read(port: chip->port, MISC_CONTROL); |
584 | snd_als300_gcr_write(port: chip->port, MISC_CONTROL, |
585 | val: tmp | VMUTE_NORMAL | MMUTE_NORMAL); |
586 | |
587 | /* Reset volumes */ |
588 | snd_als300_gcr_write(port: chip->port, MUS_VOC_VOL, val: 0); |
589 | |
590 | /* Make sure playback transfer is stopped */ |
591 | tmp = snd_als300_gcr_read(port: chip->port, PLAYBACK_CONTROL); |
592 | snd_als300_gcr_write(port: chip->port, PLAYBACK_CONTROL, |
593 | val: tmp & ~TRANSFER_START); |
594 | spin_unlock_irqrestore(lock: &chip->reg_lock, flags); |
595 | } |
596 | |
597 | static int snd_als300_create(struct snd_card *card, |
598 | struct pci_dev *pci, int chip_type) |
599 | { |
600 | struct snd_als300 *chip = card->private_data; |
601 | void *irq_handler; |
602 | int err; |
603 | |
604 | err = pcim_enable_device(pdev: pci); |
605 | if (err < 0) |
606 | return err; |
607 | |
608 | if (dma_set_mask_and_coherent(dev: &pci->dev, DMA_BIT_MASK(28))) { |
609 | dev_err(card->dev, "error setting 28bit DMA mask\n" ); |
610 | return -ENXIO; |
611 | } |
612 | pci_set_master(dev: pci); |
613 | |
614 | chip->card = card; |
615 | chip->pci = pci; |
616 | chip->irq = -1; |
617 | chip->chip_type = chip_type; |
618 | spin_lock_init(&chip->reg_lock); |
619 | |
620 | err = pci_request_regions(pci, "ALS300" ); |
621 | if (err < 0) |
622 | return err; |
623 | |
624 | chip->port = pci_resource_start(pci, 0); |
625 | |
626 | if (chip->chip_type == DEVICE_ALS300_PLUS) |
627 | irq_handler = snd_als300plus_interrupt; |
628 | else |
629 | irq_handler = snd_als300_interrupt; |
630 | |
631 | if (devm_request_irq(dev: &pci->dev, irq: pci->irq, handler: irq_handler, IRQF_SHARED, |
632 | KBUILD_MODNAME, dev_id: chip)) { |
633 | dev_err(card->dev, "unable to grab IRQ %d\n" , pci->irq); |
634 | return -EBUSY; |
635 | } |
636 | chip->irq = pci->irq; |
637 | card->sync_irq = chip->irq; |
638 | card->private_free = snd_als300_free; |
639 | |
640 | snd_als300_init(chip); |
641 | |
642 | err = snd_als300_ac97(chip); |
643 | if (err < 0) { |
644 | dev_err(card->dev, "Could not create ac97\n" ); |
645 | return err; |
646 | } |
647 | |
648 | err = snd_als300_new_pcm(chip); |
649 | if (err < 0) { |
650 | dev_err(card->dev, "Could not create PCM\n" ); |
651 | return err; |
652 | } |
653 | |
654 | return 0; |
655 | } |
656 | |
657 | static int snd_als300_suspend(struct device *dev) |
658 | { |
659 | struct snd_card *card = dev_get_drvdata(dev); |
660 | struct snd_als300 *chip = card->private_data; |
661 | |
662 | snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
663 | snd_ac97_suspend(ac97: chip->ac97); |
664 | return 0; |
665 | } |
666 | |
667 | static int snd_als300_resume(struct device *dev) |
668 | { |
669 | struct snd_card *card = dev_get_drvdata(dev); |
670 | struct snd_als300 *chip = card->private_data; |
671 | |
672 | snd_als300_init(chip); |
673 | snd_ac97_resume(ac97: chip->ac97); |
674 | |
675 | snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
676 | return 0; |
677 | } |
678 | |
679 | static DEFINE_SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); |
680 | |
681 | static int snd_als300_probe(struct pci_dev *pci, |
682 | const struct pci_device_id *pci_id) |
683 | { |
684 | static int dev; |
685 | struct snd_card *card; |
686 | struct snd_als300 *chip; |
687 | int err, chip_type; |
688 | |
689 | if (dev >= SNDRV_CARDS) |
690 | return -ENODEV; |
691 | if (!enable[dev]) { |
692 | dev++; |
693 | return -ENOENT; |
694 | } |
695 | |
696 | err = snd_devm_card_new(parent: &pci->dev, idx: index[dev], xid: id[dev], THIS_MODULE, |
697 | extra_size: sizeof(*chip), card_ret: &card); |
698 | if (err < 0) |
699 | return err; |
700 | chip = card->private_data; |
701 | |
702 | chip_type = pci_id->driver_data; |
703 | |
704 | err = snd_als300_create(card, pci, chip_type); |
705 | if (err < 0) |
706 | goto error; |
707 | |
708 | strcpy(p: card->driver, q: "ALS300" ); |
709 | if (chip->chip_type == DEVICE_ALS300_PLUS) |
710 | /* don't know much about ALS300+ yet |
711 | * print revision number for now */ |
712 | sprintf(buf: card->shortname, fmt: "ALS300+ (Rev. %d)" , chip->revision); |
713 | else |
714 | sprintf(buf: card->shortname, fmt: "ALS300 (Rev. %c)" , 'A' + |
715 | chip->revision - 1); |
716 | sprintf(buf: card->longname, fmt: "%s at 0x%lx irq %i" , |
717 | card->shortname, chip->port, chip->irq); |
718 | |
719 | err = snd_card_register(card); |
720 | if (err < 0) |
721 | goto error; |
722 | |
723 | pci_set_drvdata(pdev: pci, data: card); |
724 | dev++; |
725 | return 0; |
726 | |
727 | error: |
728 | snd_card_free(card); |
729 | return err; |
730 | } |
731 | |
732 | static struct pci_driver als300_driver = { |
733 | .name = KBUILD_MODNAME, |
734 | .id_table = snd_als300_ids, |
735 | .probe = snd_als300_probe, |
736 | .driver = { |
737 | .pm = &snd_als300_pm, |
738 | }, |
739 | }; |
740 | |
741 | module_pci_driver(als300_driver); |
742 | |