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1da177e4 LT |
1 | /* Hewlett-Packard Harmony audio driver |
2 | * | |
3 | * This is a driver for the Harmony audio chipset found | |
4 | * on the LASI ASIC of various early HP PA-RISC workstations. | |
5 | * | |
6 | * Copyright (C) 2004, Kyle McMartin <kyle@{debian.org,parisc-linux.org}> | |
7 | * | |
8 | * Based on the previous Harmony incarnations by, | |
9 | * Copyright 2000 (c) Linuxcare Canada, Alex deVries | |
10 | * Copyright 2000-2003 (c) Helge Deller | |
11 | * Copyright 2001 (c) Matthieu Delahaye | |
12 | * Copyright 2001 (c) Jean-Christophe Vaugeois | |
13 | * Copyright 2003 (c) Laurent Canet | |
14 | * Copyright 2004 (c) Stuart Brady | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License, version 2, as | |
18 | * published by the Free Software Foundation. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
28 | * | |
29 | * Notes: | |
30 | * - graveyard and silence buffers last for lifetime of | |
31 | * the driver. playback and capture buffers are allocated | |
32 | * per _open()/_close(). | |
33 | * | |
34 | * TODO: | |
35 | * | |
36 | */ | |
37 | ||
38 | #include <linux/init.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/time.h> | |
41 | #include <linux/wait.h> | |
42 | #include <linux/delay.h> | |
43 | #include <linux/module.h> | |
44 | #include <linux/interrupt.h> | |
45 | #include <linux/spinlock.h> | |
46 | #include <linux/dma-mapping.h> | |
47 | ||
48 | #include <sound/driver.h> | |
49 | #include <sound/core.h> | |
50 | #include <sound/pcm.h> | |
51 | #include <sound/control.h> | |
52 | #include <sound/rawmidi.h> | |
53 | #include <sound/initval.h> | |
54 | #include <sound/info.h> | |
55 | ||
56 | #include <asm/io.h> | |
57 | #include <asm/hardware.h> | |
58 | #include <asm/parisc-device.h> | |
59 | ||
60 | #include "harmony.h" | |
61 | ||
03f9ae25 TI |
62 | static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ |
63 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ | |
64 | module_param(index, int, 0444); | |
65 | MODULE_PARM_DESC(index, "Index value for Harmony driver."); | |
66 | module_param(id, charp, 0444); | |
67 | MODULE_PARM_DESC(id, "ID string for Harmony driver."); | |
68 | ||
69 | ||
1da177e4 LT |
70 | static struct parisc_device_id snd_harmony_devtable[] = { |
71 | /* bushmaster / flounder */ | |
72 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, | |
73 | /* 712 / 715 */ | |
74 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B }, | |
75 | /* pace */ | |
76 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E }, | |
77 | /* outfield / coral II */ | |
78 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F }, | |
79 | { 0, } | |
80 | }; | |
81 | ||
82 | MODULE_DEVICE_TABLE(parisc, snd_harmony_devtable); | |
83 | ||
84 | #define NAME "harmony" | |
85 | #define PFX NAME ": " | |
86 | ||
87 | static unsigned int snd_harmony_rates[] = { | |
88 | 5512, 6615, 8000, 9600, | |
89 | 11025, 16000, 18900, 22050, | |
90 | 27428, 32000, 33075, 37800, | |
91 | 44100, 48000 | |
92 | }; | |
93 | ||
94 | static unsigned int rate_bits[14] = { | |
95 | HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ, | |
96 | HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ, | |
97 | HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ, | |
98 | HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ, | |
99 | HARMONY_SR_44KHZ, HARMONY_SR_48KHZ | |
100 | }; | |
101 | ||
67b1020d | 102 | static struct snd_pcm_hw_constraint_list hw_constraint_rates = { |
1da177e4 LT |
103 | .count = ARRAY_SIZE(snd_harmony_rates), |
104 | .list = snd_harmony_rates, | |
105 | .mask = 0, | |
106 | }; | |
107 | ||
67b1020d TI |
108 | static inline unsigned long |
109 | harmony_read(struct snd_harmony *h, unsigned r) | |
1da177e4 LT |
110 | { |
111 | return __raw_readl(h->iobase + r); | |
112 | } | |
113 | ||
67b1020d TI |
114 | static inline void |
115 | harmony_write(struct snd_harmony *h, unsigned r, unsigned long v) | |
1da177e4 LT |
116 | { |
117 | __raw_writel(v, h->iobase + r); | |
118 | } | |
119 | ||
67b1020d TI |
120 | static inline void |
121 | harmony_wait_for_control(struct snd_harmony *h) | |
1da177e4 LT |
122 | { |
123 | while (harmony_read(h, HARMONY_CNTL) & HARMONY_CNTL_C) ; | |
124 | } | |
125 | ||
67b1020d TI |
126 | static inline void |
127 | harmony_reset(struct snd_harmony *h) | |
1da177e4 LT |
128 | { |
129 | harmony_write(h, HARMONY_RESET, 1); | |
130 | mdelay(50); | |
131 | harmony_write(h, HARMONY_RESET, 0); | |
132 | } | |
133 | ||
134 | static void | |
67b1020d | 135 | harmony_disable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
136 | { |
137 | u32 dstatus; | |
138 | harmony_wait_for_control(h); | |
139 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
140 | dstatus &= ~HARMONY_DSTATUS_IE; | |
141 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
142 | } | |
143 | ||
144 | static void | |
67b1020d | 145 | harmony_enable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
146 | { |
147 | u32 dstatus; | |
148 | harmony_wait_for_control(h); | |
149 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
150 | dstatus |= HARMONY_DSTATUS_IE; | |
151 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
152 | } | |
153 | ||
154 | static void | |
67b1020d | 155 | harmony_mute(struct snd_harmony *h) |
1da177e4 LT |
156 | { |
157 | unsigned long flags; | |
158 | ||
159 | spin_lock_irqsave(&h->mixer_lock, flags); | |
160 | harmony_wait_for_control(h); | |
161 | harmony_write(h, HARMONY_GAINCTL, HARMONY_GAIN_SILENCE); | |
162 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
163 | } | |
164 | ||
165 | static void | |
67b1020d | 166 | harmony_unmute(struct snd_harmony *h) |
1da177e4 LT |
167 | { |
168 | unsigned long flags; | |
169 | ||
170 | spin_lock_irqsave(&h->mixer_lock, flags); | |
171 | harmony_wait_for_control(h); | |
172 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
173 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
174 | } | |
175 | ||
176 | static void | |
67b1020d | 177 | harmony_set_control(struct snd_harmony *h) |
1da177e4 LT |
178 | { |
179 | u32 ctrl; | |
180 | unsigned long flags; | |
181 | ||
182 | spin_lock_irqsave(&h->lock, flags); | |
183 | ||
184 | ctrl = (HARMONY_CNTL_C | | |
185 | (h->st.format << 6) | | |
186 | (h->st.stereo << 5) | | |
187 | (h->st.rate)); | |
188 | ||
189 | harmony_wait_for_control(h); | |
190 | harmony_write(h, HARMONY_CNTL, ctrl); | |
191 | ||
192 | spin_unlock_irqrestore(&h->lock, flags); | |
193 | } | |
194 | ||
195 | static irqreturn_t | |
7d12e780 | 196 | snd_harmony_interrupt(int irq, void *dev) |
1da177e4 LT |
197 | { |
198 | u32 dstatus; | |
67b1020d | 199 | struct snd_harmony *h = dev; |
1da177e4 LT |
200 | |
201 | spin_lock(&h->lock); | |
202 | harmony_disable_interrupts(h); | |
203 | harmony_wait_for_control(h); | |
204 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
205 | spin_unlock(&h->lock); | |
206 | ||
207 | if (dstatus & HARMONY_DSTATUS_PN) { | |
3a165680 | 208 | if (h->psubs && h->st.playing) { |
1da177e4 LT |
209 | spin_lock(&h->lock); |
210 | h->pbuf.buf += h->pbuf.count; /* PAGE_SIZE */ | |
211 | h->pbuf.buf %= h->pbuf.size; /* MAX_BUFS*PAGE_SIZE */ | |
212 | ||
213 | harmony_write(h, HARMONY_PNXTADD, | |
214 | h->pbuf.addr + h->pbuf.buf); | |
215 | h->stats.play_intr++; | |
216 | spin_unlock(&h->lock); | |
217 | snd_pcm_period_elapsed(h->psubs); | |
218 | } else { | |
219 | spin_lock(&h->lock); | |
220 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
221 | h->stats.silence_intr++; | |
222 | spin_unlock(&h->lock); | |
223 | } | |
224 | } | |
225 | ||
226 | if (dstatus & HARMONY_DSTATUS_RN) { | |
3a165680 | 227 | if (h->csubs && h->st.capturing) { |
1da177e4 LT |
228 | spin_lock(&h->lock); |
229 | h->cbuf.buf += h->cbuf.count; | |
230 | h->cbuf.buf %= h->cbuf.size; | |
231 | ||
232 | harmony_write(h, HARMONY_RNXTADD, | |
233 | h->cbuf.addr + h->cbuf.buf); | |
234 | h->stats.rec_intr++; | |
235 | spin_unlock(&h->lock); | |
236 | snd_pcm_period_elapsed(h->csubs); | |
237 | } else { | |
238 | spin_lock(&h->lock); | |
239 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
240 | h->stats.graveyard_intr++; | |
241 | spin_unlock(&h->lock); | |
242 | } | |
243 | } | |
244 | ||
245 | spin_lock(&h->lock); | |
246 | harmony_enable_interrupts(h); | |
247 | spin_unlock(&h->lock); | |
248 | ||
249 | return IRQ_HANDLED; | |
250 | } | |
251 | ||
252 | static unsigned int | |
253 | snd_harmony_rate_bits(int rate) | |
254 | { | |
255 | unsigned int i; | |
256 | ||
257 | for (i = 0; i < ARRAY_SIZE(snd_harmony_rates); i++) | |
258 | if (snd_harmony_rates[i] == rate) | |
259 | return rate_bits[i]; | |
260 | ||
261 | return HARMONY_SR_44KHZ; | |
262 | } | |
263 | ||
67b1020d | 264 | static struct snd_pcm_hardware snd_harmony_playback = |
1da177e4 LT |
265 | { |
266 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
267 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
268 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
269 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
270 | SNDRV_PCM_FMTBIT_A_LAW), | |
271 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
272 | SNDRV_PCM_RATE_KNOT), | |
273 | .rate_min = 5512, | |
274 | .rate_max = 48000, | |
275 | .channels_min = 1, | |
276 | .channels_max = 2, | |
277 | .buffer_bytes_max = MAX_BUF_SIZE, | |
278 | .period_bytes_min = BUF_SIZE, | |
279 | .period_bytes_max = BUF_SIZE, | |
280 | .periods_min = 1, | |
281 | .periods_max = MAX_BUFS, | |
282 | .fifo_size = 0, | |
283 | }; | |
284 | ||
67b1020d | 285 | static struct snd_pcm_hardware snd_harmony_capture = |
1da177e4 LT |
286 | { |
287 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
288 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
289 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
290 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
291 | SNDRV_PCM_FMTBIT_A_LAW), | |
292 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
293 | SNDRV_PCM_RATE_KNOT), | |
294 | .rate_min = 5512, | |
295 | .rate_max = 48000, | |
296 | .channels_min = 1, | |
297 | .channels_max = 2, | |
298 | .buffer_bytes_max = MAX_BUF_SIZE, | |
299 | .period_bytes_min = BUF_SIZE, | |
300 | .period_bytes_max = BUF_SIZE, | |
301 | .periods_min = 1, | |
302 | .periods_max = MAX_BUFS, | |
303 | .fifo_size = 0, | |
304 | }; | |
305 | ||
306 | static int | |
67b1020d | 307 | snd_harmony_playback_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 308 | { |
67b1020d | 309 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
310 | |
311 | if (h->st.capturing) | |
312 | return -EBUSY; | |
313 | ||
03f9ae25 | 314 | spin_lock(&h->lock); |
1da177e4 LT |
315 | switch (cmd) { |
316 | case SNDRV_PCM_TRIGGER_START: | |
317 | h->st.playing = 1; | |
318 | harmony_write(h, HARMONY_PNXTADD, h->pbuf.addr); | |
319 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
320 | harmony_unmute(h); | |
321 | harmony_enable_interrupts(h); | |
322 | break; | |
323 | case SNDRV_PCM_TRIGGER_STOP: | |
324 | h->st.playing = 0; | |
325 | harmony_mute(h); | |
3a165680 | 326 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); |
1da177e4 LT |
327 | harmony_disable_interrupts(h); |
328 | break; | |
329 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
330 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
331 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
332 | default: | |
03f9ae25 | 333 | spin_unlock(&h->lock); |
1da177e4 LT |
334 | snd_BUG(); |
335 | return -EINVAL; | |
336 | } | |
03f9ae25 | 337 | spin_unlock(&h->lock); |
1da177e4 LT |
338 | |
339 | return 0; | |
340 | } | |
341 | ||
342 | static int | |
67b1020d | 343 | snd_harmony_capture_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 344 | { |
67b1020d | 345 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
346 | |
347 | if (h->st.playing) | |
348 | return -EBUSY; | |
349 | ||
03f9ae25 | 350 | spin_lock(&h->lock); |
1da177e4 LT |
351 | switch (cmd) { |
352 | case SNDRV_PCM_TRIGGER_START: | |
353 | h->st.capturing = 1; | |
354 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
355 | harmony_write(h, HARMONY_RNXTADD, h->cbuf.addr); | |
356 | harmony_unmute(h); | |
357 | harmony_enable_interrupts(h); | |
358 | break; | |
359 | case SNDRV_PCM_TRIGGER_STOP: | |
360 | h->st.capturing = 0; | |
3a165680 SB |
361 | harmony_mute(h); |
362 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
363 | harmony_disable_interrupts(h); | |
1da177e4 LT |
364 | break; |
365 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
366 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
367 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
368 | default: | |
03f9ae25 | 369 | spin_unlock(&h->lock); |
1da177e4 LT |
370 | snd_BUG(); |
371 | return -EINVAL; | |
372 | } | |
03f9ae25 | 373 | spin_unlock(&h->lock); |
1da177e4 LT |
374 | |
375 | return 0; | |
376 | } | |
377 | ||
378 | static int | |
67b1020d | 379 | snd_harmony_set_data_format(struct snd_harmony *h, int fmt, int force) |
1da177e4 LT |
380 | { |
381 | int o = h->st.format; | |
382 | int n; | |
383 | ||
384 | switch(fmt) { | |
385 | case SNDRV_PCM_FORMAT_S16_BE: | |
386 | n = HARMONY_DF_16BIT_LINEAR; | |
387 | break; | |
388 | case SNDRV_PCM_FORMAT_A_LAW: | |
389 | n = HARMONY_DF_8BIT_ALAW; | |
390 | break; | |
391 | case SNDRV_PCM_FORMAT_MU_LAW: | |
392 | n = HARMONY_DF_8BIT_ULAW; | |
393 | break; | |
394 | default: | |
395 | n = HARMONY_DF_16BIT_LINEAR; | |
396 | break; | |
397 | } | |
398 | ||
399 | if (force || o != n) { | |
400 | snd_pcm_format_set_silence(fmt, h->sdma.area, SILENCE_BUFSZ / | |
401 | (snd_pcm_format_physical_width(fmt) | |
402 | / 8)); | |
403 | } | |
404 | ||
405 | return n; | |
406 | } | |
407 | ||
408 | static int | |
67b1020d | 409 | snd_harmony_playback_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 410 | { |
67b1020d TI |
411 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
412 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
413 | |
414 | if (h->st.capturing) | |
415 | return -EBUSY; | |
416 | ||
417 | h->pbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
418 | h->pbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
419 | if (h->pbuf.buf >= h->pbuf.size) |
420 | h->pbuf.buf = 0; | |
1da177e4 LT |
421 | h->st.playing = 0; |
422 | ||
423 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
424 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
425 | ||
426 | if (rt->channels == 2) | |
427 | h->st.stereo = HARMONY_SS_STEREO; | |
428 | else | |
429 | h->st.stereo = HARMONY_SS_MONO; | |
430 | ||
431 | harmony_set_control(h); | |
432 | ||
433 | h->pbuf.addr = rt->dma_addr; | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | static int | |
67b1020d | 439 | snd_harmony_capture_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 440 | { |
67b1020d TI |
441 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
442 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
443 | |
444 | if (h->st.playing) | |
445 | return -EBUSY; | |
446 | ||
447 | h->cbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
448 | h->cbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
449 | if (h->cbuf.buf >= h->cbuf.size) |
450 | h->cbuf.buf = 0; | |
1da177e4 LT |
451 | h->st.capturing = 0; |
452 | ||
453 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
454 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
455 | ||
456 | if (rt->channels == 2) | |
457 | h->st.stereo = HARMONY_SS_STEREO; | |
458 | else | |
459 | h->st.stereo = HARMONY_SS_MONO; | |
460 | ||
461 | harmony_set_control(h); | |
462 | ||
463 | h->cbuf.addr = rt->dma_addr; | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
468 | static snd_pcm_uframes_t | |
67b1020d | 469 | snd_harmony_playback_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 470 | { |
67b1020d TI |
471 | struct snd_pcm_runtime *rt = ss->runtime; |
472 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
473 | unsigned long pcuradd; |
474 | unsigned long played; | |
475 | ||
476 | if (!(h->st.playing) || (h->psubs == NULL)) | |
477 | return 0; | |
478 | ||
479 | if ((h->pbuf.addr == 0) || (h->pbuf.size == 0)) | |
480 | return 0; | |
481 | ||
482 | pcuradd = harmony_read(h, HARMONY_PCURADD); | |
483 | played = pcuradd - h->pbuf.addr; | |
484 | ||
485 | #ifdef HARMONY_DEBUG | |
486 | printk(KERN_DEBUG PFX "playback_pointer is 0x%lx-0x%lx = %d bytes\n", | |
487 | pcuradd, h->pbuf.addr, played); | |
488 | #endif | |
489 | ||
490 | if (pcuradd > h->pbuf.addr + h->pbuf.size) { | |
491 | return 0; | |
492 | } | |
493 | ||
494 | return bytes_to_frames(rt, played); | |
495 | } | |
496 | ||
497 | static snd_pcm_uframes_t | |
67b1020d | 498 | snd_harmony_capture_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 499 | { |
67b1020d TI |
500 | struct snd_pcm_runtime *rt = ss->runtime; |
501 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
502 | unsigned long rcuradd; |
503 | unsigned long caught; | |
504 | ||
505 | if (!(h->st.capturing) || (h->csubs == NULL)) | |
506 | return 0; | |
507 | ||
508 | if ((h->cbuf.addr == 0) || (h->cbuf.size == 0)) | |
509 | return 0; | |
510 | ||
511 | rcuradd = harmony_read(h, HARMONY_RCURADD); | |
512 | caught = rcuradd - h->cbuf.addr; | |
513 | ||
514 | #ifdef HARMONY_DEBUG | |
515 | printk(KERN_DEBUG PFX "capture_pointer is 0x%lx-0x%lx = %d bytes\n", | |
516 | rcuradd, h->cbuf.addr, caught); | |
517 | #endif | |
518 | ||
519 | if (rcuradd > h->cbuf.addr + h->cbuf.size) { | |
520 | return 0; | |
521 | } | |
522 | ||
523 | return bytes_to_frames(rt, caught); | |
524 | } | |
525 | ||
526 | static int | |
67b1020d | 527 | snd_harmony_playback_open(struct snd_pcm_substream *ss) |
1da177e4 | 528 | { |
67b1020d TI |
529 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
530 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
531 | int err; |
532 | ||
533 | h->psubs = ss; | |
534 | rt->hw = snd_harmony_playback; | |
535 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
536 | &hw_constraint_rates); | |
537 | ||
538 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
539 | if (err < 0) | |
540 | return err; | |
541 | ||
542 | return 0; | |
543 | } | |
544 | ||
545 | static int | |
67b1020d | 546 | snd_harmony_capture_open(struct snd_pcm_substream *ss) |
1da177e4 | 547 | { |
67b1020d TI |
548 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
549 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
550 | int err; |
551 | ||
552 | h->csubs = ss; | |
553 | rt->hw = snd_harmony_capture; | |
554 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
555 | &hw_constraint_rates); | |
556 | ||
557 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
558 | if (err < 0) | |
559 | return err; | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static int | |
67b1020d | 565 | snd_harmony_playback_close(struct snd_pcm_substream *ss) |
1da177e4 | 566 | { |
67b1020d | 567 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
568 | h->psubs = NULL; |
569 | return 0; | |
570 | } | |
571 | ||
572 | static int | |
67b1020d | 573 | snd_harmony_capture_close(struct snd_pcm_substream *ss) |
1da177e4 | 574 | { |
67b1020d | 575 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
576 | h->csubs = NULL; |
577 | return 0; | |
578 | } | |
579 | ||
580 | static int | |
67b1020d TI |
581 | snd_harmony_hw_params(struct snd_pcm_substream *ss, |
582 | struct snd_pcm_hw_params *hw) | |
1da177e4 LT |
583 | { |
584 | int err; | |
67b1020d | 585 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
586 | |
587 | err = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw)); | |
588 | if (err > 0 && h->dma.type == SNDRV_DMA_TYPE_CONTINUOUS) | |
589 | ss->runtime->dma_addr = __pa(ss->runtime->dma_area); | |
590 | ||
591 | return err; | |
592 | } | |
593 | ||
594 | static int | |
67b1020d | 595 | snd_harmony_hw_free(struct snd_pcm_substream *ss) |
1da177e4 LT |
596 | { |
597 | return snd_pcm_lib_free_pages(ss); | |
598 | } | |
599 | ||
67b1020d | 600 | static struct snd_pcm_ops snd_harmony_playback_ops = { |
1da177e4 LT |
601 | .open = snd_harmony_playback_open, |
602 | .close = snd_harmony_playback_close, | |
603 | .ioctl = snd_pcm_lib_ioctl, | |
604 | .hw_params = snd_harmony_hw_params, | |
605 | .hw_free = snd_harmony_hw_free, | |
606 | .prepare = snd_harmony_playback_prepare, | |
607 | .trigger = snd_harmony_playback_trigger, | |
608 | .pointer = snd_harmony_playback_pointer, | |
609 | }; | |
610 | ||
67b1020d | 611 | static struct snd_pcm_ops snd_harmony_capture_ops = { |
1da177e4 LT |
612 | .open = snd_harmony_capture_open, |
613 | .close = snd_harmony_capture_close, | |
614 | .ioctl = snd_pcm_lib_ioctl, | |
615 | .hw_params = snd_harmony_hw_params, | |
616 | .hw_free = snd_harmony_hw_free, | |
617 | .prepare = snd_harmony_capture_prepare, | |
618 | .trigger = snd_harmony_capture_trigger, | |
619 | .pointer = snd_harmony_capture_pointer, | |
620 | }; | |
621 | ||
622 | static int | |
67b1020d | 623 | snd_harmony_pcm_init(struct snd_harmony *h) |
1da177e4 | 624 | { |
67b1020d | 625 | struct snd_pcm *pcm; |
1da177e4 LT |
626 | int err; |
627 | ||
628 | harmony_disable_interrupts(h); | |
629 | ||
630 | err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); | |
631 | if (err < 0) | |
632 | return err; | |
633 | ||
634 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
635 | &snd_harmony_playback_ops); | |
636 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
637 | &snd_harmony_capture_ops); | |
638 | ||
639 | pcm->private_data = h; | |
640 | pcm->info_flags = 0; | |
641 | strcpy(pcm->name, "harmony"); | |
642 | h->pcm = pcm; | |
643 | ||
644 | h->psubs = NULL; | |
645 | h->csubs = NULL; | |
646 | ||
647 | /* initialize graveyard buffer */ | |
648 | h->dma.type = SNDRV_DMA_TYPE_DEV; | |
649 | h->dma.dev = &h->dev->dev; | |
650 | err = snd_dma_alloc_pages(h->dma.type, | |
651 | h->dma.dev, | |
652 | BUF_SIZE*GRAVEYARD_BUFS, | |
653 | &h->gdma); | |
654 | if (err < 0) { | |
655 | printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n"); | |
656 | return err; | |
657 | } | |
658 | ||
659 | /* initialize silence buffers */ | |
660 | err = snd_dma_alloc_pages(h->dma.type, | |
661 | h->dma.dev, | |
662 | BUF_SIZE*SILENCE_BUFS, | |
663 | &h->sdma); | |
664 | if (err < 0) { | |
665 | printk(KERN_ERR PFX "cannot allocate silence buffer!\n"); | |
666 | return err; | |
667 | } | |
668 | ||
669 | /* pre-allocate space for DMA */ | |
670 | err = snd_pcm_lib_preallocate_pages_for_all(pcm, h->dma.type, | |
671 | h->dma.dev, | |
672 | MAX_BUF_SIZE, | |
673 | MAX_BUF_SIZE); | |
674 | if (err < 0) { | |
675 | printk(KERN_ERR PFX "buffer allocation error: %d\n", err); | |
676 | return err; | |
677 | } | |
678 | ||
679 | h->st.format = snd_harmony_set_data_format(h, | |
680 | SNDRV_PCM_FORMAT_S16_BE, 1); | |
681 | ||
682 | return 0; | |
683 | } | |
684 | ||
685 | static void | |
67b1020d | 686 | snd_harmony_set_new_gain(struct snd_harmony *h) |
1da177e4 LT |
687 | { |
688 | harmony_wait_for_control(h); | |
689 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
690 | } | |
691 | ||
692 | static int | |
67b1020d TI |
693 | snd_harmony_mixercontrol_info(struct snd_kcontrol *kc, |
694 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
695 | { |
696 | int mask = (kc->private_value >> 16) & 0xff; | |
697 | int left_shift = (kc->private_value) & 0xff; | |
698 | int right_shift = (kc->private_value >> 8) & 0xff; | |
699 | ||
700 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : | |
701 | SNDRV_CTL_ELEM_TYPE_INTEGER; | |
702 | uinfo->count = left_shift == right_shift ? 1 : 2; | |
703 | uinfo->value.integer.min = 0; | |
704 | uinfo->value.integer.max = mask; | |
705 | ||
706 | return 0; | |
707 | } | |
708 | ||
709 | static int | |
67b1020d TI |
710 | snd_harmony_volume_get(struct snd_kcontrol *kc, |
711 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 712 | { |
67b1020d | 713 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
714 | int shift_left = (kc->private_value) & 0xff; |
715 | int shift_right = (kc->private_value >> 8) & 0xff; | |
716 | int mask = (kc->private_value >> 16) & 0xff; | |
717 | int invert = (kc->private_value >> 24) & 0xff; | |
718 | int left, right; | |
1da177e4 | 719 | |
03f9ae25 | 720 | spin_lock_irq(&h->mixer_lock); |
1da177e4 LT |
721 | |
722 | left = (h->st.gain >> shift_left) & mask; | |
723 | right = (h->st.gain >> shift_right) & mask; | |
1da177e4 LT |
724 | if (invert) { |
725 | left = mask - left; | |
726 | right = mask - right; | |
727 | } | |
3a165680 | 728 | |
1da177e4 | 729 | ucontrol->value.integer.value[0] = left; |
3a165680 SB |
730 | if (shift_left != shift_right) |
731 | ucontrol->value.integer.value[1] = right; | |
1da177e4 | 732 | |
03f9ae25 | 733 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 LT |
734 | |
735 | return 0; | |
736 | } | |
737 | ||
738 | static int | |
67b1020d TI |
739 | snd_harmony_volume_put(struct snd_kcontrol *kc, |
740 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 741 | { |
67b1020d | 742 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
743 | int shift_left = (kc->private_value) & 0xff; |
744 | int shift_right = (kc->private_value >> 8) & 0xff; | |
745 | int mask = (kc->private_value >> 16) & 0xff; | |
746 | int invert = (kc->private_value >> 24) & 0xff; | |
747 | int left, right; | |
748 | int old_gain = h->st.gain; | |
1da177e4 | 749 | |
03f9ae25 | 750 | spin_lock_irq(&h->mixer_lock); |
3a165680 | 751 | |
1da177e4 | 752 | left = ucontrol->value.integer.value[0] & mask; |
3a165680 | 753 | if (invert) |
1da177e4 | 754 | left = mask - left; |
3a165680 SB |
755 | h->st.gain &= ~( (mask << shift_left ) ); |
756 | h->st.gain |= (left << shift_left); | |
757 | ||
758 | if (shift_left != shift_right) { | |
759 | right = ucontrol->value.integer.value[1] & mask; | |
760 | if (invert) | |
761 | right = mask - right; | |
762 | h->st.gain &= ~( (mask << shift_right) ); | |
763 | h->st.gain |= (right << shift_right); | |
1da177e4 | 764 | } |
3a165680 SB |
765 | |
766 | snd_harmony_set_new_gain(h); | |
767 | ||
03f9ae25 | 768 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
769 | |
770 | return h->st.gain != old_gain; | |
771 | } | |
772 | ||
773 | static int | |
67b1020d TI |
774 | snd_harmony_captureroute_info(struct snd_kcontrol *kc, |
775 | struct snd_ctl_elem_info *uinfo) | |
3a165680 SB |
776 | { |
777 | static char *texts[2] = { "Line", "Mic" }; | |
778 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
779 | uinfo->count = 1; | |
780 | uinfo->value.enumerated.items = 2; | |
781 | if (uinfo->value.enumerated.item > 1) | |
782 | uinfo->value.enumerated.item = 1; | |
783 | strcpy(uinfo->value.enumerated.name, | |
784 | texts[uinfo->value.enumerated.item]); | |
785 | return 0; | |
786 | } | |
787 | ||
788 | static int | |
67b1020d TI |
789 | snd_harmony_captureroute_get(struct snd_kcontrol *kc, |
790 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 791 | { |
67b1020d | 792 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 | 793 | int value; |
3a165680 | 794 | |
03f9ae25 | 795 | spin_lock_irq(&h->mixer_lock); |
3a165680 SB |
796 | |
797 | value = (h->st.gain >> HARMONY_GAIN_IS_SHIFT) & 1; | |
798 | ucontrol->value.enumerated.item[0] = value; | |
799 | ||
03f9ae25 | 800 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
801 | |
802 | return 0; | |
803 | } | |
804 | ||
805 | static int | |
67b1020d TI |
806 | snd_harmony_captureroute_put(struct snd_kcontrol *kc, |
807 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 808 | { |
67b1020d | 809 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 SB |
810 | int value; |
811 | int old_gain = h->st.gain; | |
1da177e4 | 812 | |
03f9ae25 | 813 | spin_lock_irq(&h->mixer_lock); |
1da177e4 | 814 | |
3a165680 SB |
815 | value = ucontrol->value.enumerated.item[0] & 1; |
816 | h->st.gain &= ~HARMONY_GAIN_IS_MASK; | |
817 | h->st.gain |= value << HARMONY_GAIN_IS_SHIFT; | |
818 | ||
1da177e4 LT |
819 | snd_harmony_set_new_gain(h); |
820 | ||
03f9ae25 | 821 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 | 822 | |
3a165680 | 823 | return h->st.gain != old_gain; |
1da177e4 LT |
824 | } |
825 | ||
67b1020d | 826 | #define HARMONY_CONTROLS ARRAY_SIZE(snd_harmony_controls) |
1da177e4 LT |
827 | |
828 | #define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \ | |
829 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
830 | .info = snd_harmony_mixercontrol_info, \ | |
831 | .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \ | |
832 | .private_value = ((left_shift) | ((right_shift) << 8) | \ | |
833 | ((mask) << 16) | ((invert) << 24)) } | |
834 | ||
67b1020d | 835 | static struct snd_kcontrol_new snd_harmony_controls[] = { |
3a165680 | 836 | HARMONY_VOLUME("Master Playback Volume", HARMONY_GAIN_LO_SHIFT, |
1da177e4 LT |
837 | HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1), |
838 | HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT, | |
839 | HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0), | |
3a165680 SB |
840 | HARMONY_VOLUME("Monitor Volume", HARMONY_GAIN_MA_SHIFT, |
841 | HARMONY_GAIN_MA_SHIFT, HARMONY_GAIN_MA, 1), | |
842 | { | |
843 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
844 | .name = "Input Route", | |
845 | .info = snd_harmony_captureroute_info, | |
846 | .get = snd_harmony_captureroute_get, | |
847 | .put = snd_harmony_captureroute_put | |
848 | }, | |
849 | HARMONY_VOLUME("Internal Speaker Switch", HARMONY_GAIN_SE_SHIFT, | |
850 | HARMONY_GAIN_SE_SHIFT, 1, 0), | |
851 | HARMONY_VOLUME("Line-Out Switch", HARMONY_GAIN_LE_SHIFT, | |
852 | HARMONY_GAIN_LE_SHIFT, 1, 0), | |
853 | HARMONY_VOLUME("Headphones Switch", HARMONY_GAIN_HE_SHIFT, | |
854 | HARMONY_GAIN_HE_SHIFT, 1, 0), | |
1da177e4 LT |
855 | }; |
856 | ||
857 | static void __init | |
67b1020d | 858 | snd_harmony_mixer_reset(struct snd_harmony *h) |
1da177e4 LT |
859 | { |
860 | harmony_mute(h); | |
861 | harmony_reset(h); | |
862 | h->st.gain = HARMONY_GAIN_DEFAULT; | |
863 | harmony_unmute(h); | |
864 | } | |
865 | ||
866 | static int __init | |
67b1020d | 867 | snd_harmony_mixer_init(struct snd_harmony *h) |
1da177e4 | 868 | { |
67b1020d | 869 | struct snd_card *card = h->card; |
1da177e4 LT |
870 | int idx, err; |
871 | ||
872 | snd_assert(h != NULL, return -EINVAL); | |
873 | strcpy(card->mixername, "Harmony Gain control interface"); | |
874 | ||
875 | for (idx = 0; idx < HARMONY_CONTROLS; idx++) { | |
876 | err = snd_ctl_add(card, | |
877 | snd_ctl_new1(&snd_harmony_controls[idx], h)); | |
878 | if (err < 0) | |
879 | return err; | |
880 | } | |
881 | ||
882 | snd_harmony_mixer_reset(h); | |
883 | ||
884 | return 0; | |
885 | } | |
886 | ||
887 | static int | |
67b1020d | 888 | snd_harmony_free(struct snd_harmony *h) |
1da177e4 LT |
889 | { |
890 | if (h->gdma.addr) | |
891 | snd_dma_free_pages(&h->gdma); | |
892 | if (h->sdma.addr) | |
893 | snd_dma_free_pages(&h->sdma); | |
894 | ||
895 | if (h->irq >= 0) | |
896 | free_irq(h->irq, h); | |
897 | ||
898 | if (h->iobase) | |
899 | iounmap(h->iobase); | |
900 | ||
901 | parisc_set_drvdata(h->dev, NULL); | |
902 | ||
903 | kfree(h); | |
904 | return 0; | |
905 | } | |
906 | ||
907 | static int | |
67b1020d | 908 | snd_harmony_dev_free(struct snd_device *dev) |
1da177e4 | 909 | { |
67b1020d | 910 | struct snd_harmony *h = dev->device_data; |
1da177e4 LT |
911 | return snd_harmony_free(h); |
912 | } | |
913 | ||
914 | static int __devinit | |
67b1020d | 915 | snd_harmony_create(struct snd_card *card, |
1da177e4 | 916 | struct parisc_device *padev, |
67b1020d | 917 | struct snd_harmony **rchip) |
1da177e4 LT |
918 | { |
919 | int err; | |
67b1020d TI |
920 | struct snd_harmony *h; |
921 | static struct snd_device_ops ops = { | |
1da177e4 LT |
922 | .dev_free = snd_harmony_dev_free, |
923 | }; | |
924 | ||
925 | *rchip = NULL; | |
926 | ||
03f9ae25 | 927 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
1da177e4 LT |
928 | if (h == NULL) |
929 | return -ENOMEM; | |
930 | ||
53f01bba | 931 | h->hpa = padev->hpa.start; |
1da177e4 LT |
932 | h->card = card; |
933 | h->dev = padev; | |
03f9ae25 | 934 | h->irq = -1; |
53f01bba | 935 | h->iobase = ioremap_nocache(padev->hpa.start, HARMONY_SIZE); |
1da177e4 LT |
936 | if (h->iobase == NULL) { |
937 | printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n", | |
53f01bba | 938 | padev->hpa.start); |
1da177e4 LT |
939 | err = -EBUSY; |
940 | goto free_and_ret; | |
941 | } | |
942 | ||
03f9ae25 | 943 | err = request_irq(padev->irq, snd_harmony_interrupt, 0, |
1da177e4 LT |
944 | "harmony", h); |
945 | if (err) { | |
946 | printk(KERN_ERR PFX "could not obtain interrupt %d", | |
03f9ae25 | 947 | padev->irq); |
1da177e4 LT |
948 | goto free_and_ret; |
949 | } | |
03f9ae25 | 950 | h->irq = padev->irq; |
1da177e4 LT |
951 | |
952 | spin_lock_init(&h->mixer_lock); | |
953 | spin_lock_init(&h->lock); | |
954 | ||
955 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, | |
956 | h, &ops)) < 0) { | |
957 | goto free_and_ret; | |
958 | } | |
959 | ||
a76af199 TI |
960 | snd_card_set_dev(card, &padev->dev); |
961 | ||
1da177e4 LT |
962 | *rchip = h; |
963 | ||
964 | return 0; | |
965 | ||
966 | free_and_ret: | |
967 | snd_harmony_free(h); | |
968 | return err; | |
969 | } | |
970 | ||
971 | static int __devinit | |
972 | snd_harmony_probe(struct parisc_device *padev) | |
973 | { | |
974 | int err; | |
67b1020d TI |
975 | struct snd_card *card; |
976 | struct snd_harmony *h; | |
1da177e4 LT |
977 | |
978 | card = snd_card_new(index, id, THIS_MODULE, 0); | |
979 | if (card == NULL) | |
980 | return -ENOMEM; | |
981 | ||
982 | err = snd_harmony_create(card, padev, &h); | |
03f9ae25 | 983 | if (err < 0) |
1da177e4 | 984 | goto free_and_ret; |
1da177e4 LT |
985 | |
986 | err = snd_harmony_pcm_init(h); | |
03f9ae25 | 987 | if (err < 0) |
1da177e4 | 988 | goto free_and_ret; |
1da177e4 LT |
989 | |
990 | err = snd_harmony_mixer_init(h); | |
03f9ae25 | 991 | if (err < 0) |
1da177e4 | 992 | goto free_and_ret; |
1da177e4 LT |
993 | |
994 | strcpy(card->driver, "harmony"); | |
995 | strcpy(card->shortname, "Harmony"); | |
996 | sprintf(card->longname, "%s at 0x%lx, irq %i", | |
997 | card->shortname, h->hpa, h->irq); | |
998 | ||
999 | err = snd_card_register(card); | |
03f9ae25 | 1000 | if (err < 0) |
1da177e4 | 1001 | goto free_and_ret; |
1da177e4 | 1002 | |
03f9ae25 | 1003 | parisc_set_drvdata(padev, card); |
1da177e4 LT |
1004 | return 0; |
1005 | ||
1006 | free_and_ret: | |
1007 | snd_card_free(card); | |
1008 | return err; | |
1009 | } | |
1010 | ||
1011 | static int __devexit | |
1012 | snd_harmony_remove(struct parisc_device *padev) | |
1013 | { | |
03f9ae25 TI |
1014 | snd_card_free(parisc_get_drvdata(padev)); |
1015 | parisc_set_drvdata(padev, NULL); | |
1da177e4 LT |
1016 | return 0; |
1017 | } | |
1018 | ||
1019 | static struct parisc_driver snd_harmony_driver = { | |
1020 | .name = "harmony", | |
1021 | .id_table = snd_harmony_devtable, | |
1022 | .probe = snd_harmony_probe, | |
1023 | .remove = snd_harmony_remove, | |
1024 | }; | |
1025 | ||
1026 | static int __init | |
1027 | alsa_harmony_init(void) | |
1028 | { | |
03f9ae25 | 1029 | return register_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1030 | } |
1031 | ||
1032 | static void __exit | |
1033 | alsa_harmony_fini(void) | |
1034 | { | |
67b1020d | 1035 | unregister_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1036 | } |
1037 | ||
1038 | MODULE_LICENSE("GPL"); | |
1039 | MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>"); | |
1040 | MODULE_DESCRIPTION("Harmony sound driver"); | |
1041 | ||
1042 | module_init(alsa_harmony_init); | |
1043 | module_exit(alsa_harmony_fini); |