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Commit | Line | Data |
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82c29810 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* Hewlett-Packard Harmony audio driver |
3 | * | |
4 | * This is a driver for the Harmony audio chipset found | |
5 | * on the LASI ASIC of various early HP PA-RISC workstations. | |
6 | * | |
7 | * Copyright (C) 2004, Kyle McMartin <kyle@{debian.org,parisc-linux.org}> | |
8 | * | |
9 | * Based on the previous Harmony incarnations by, | |
10 | * Copyright 2000 (c) Linuxcare Canada, Alex deVries | |
11 | * Copyright 2000-2003 (c) Helge Deller | |
12 | * Copyright 2001 (c) Matthieu Delahaye | |
13 | * Copyright 2001 (c) Jean-Christophe Vaugeois | |
14 | * Copyright 2003 (c) Laurent Canet | |
15 | * Copyright 2004 (c) Stuart Brady | |
16 | * | |
1da177e4 LT |
17 | * Notes: |
18 | * - graveyard and silence buffers last for lifetime of | |
19 | * the driver. playback and capture buffers are allocated | |
20 | * per _open()/_close(). | |
21 | * | |
22 | * TODO: | |
1da177e4 LT |
23 | */ |
24 | ||
25 | #include <linux/init.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/time.h> | |
28 | #include <linux/wait.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/interrupt.h> | |
32 | #include <linux/spinlock.h> | |
33 | #include <linux/dma-mapping.h> | |
6cbbfe1c | 34 | #include <linux/io.h> |
1da177e4 | 35 | |
1da177e4 LT |
36 | #include <sound/core.h> |
37 | #include <sound/pcm.h> | |
38 | #include <sound/control.h> | |
39 | #include <sound/rawmidi.h> | |
40 | #include <sound/initval.h> | |
41 | #include <sound/info.h> | |
42 | ||
1da177e4 LT |
43 | #include <asm/hardware.h> |
44 | #include <asm/parisc-device.h> | |
45 | ||
46 | #include "harmony.h" | |
47 | ||
03f9ae25 TI |
48 | static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ |
49 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ | |
50 | module_param(index, int, 0444); | |
51 | MODULE_PARM_DESC(index, "Index value for Harmony driver."); | |
52 | module_param(id, charp, 0444); | |
53 | MODULE_PARM_DESC(id, "ID string for Harmony driver."); | |
54 | ||
55 | ||
c8dbaa22 | 56 | static const struct parisc_device_id snd_harmony_devtable[] __initconst = { |
1da177e4 LT |
57 | /* bushmaster / flounder */ |
58 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, | |
59 | /* 712 / 715 */ | |
60 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B }, | |
61 | /* pace */ | |
62 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E }, | |
63 | /* outfield / coral II */ | |
64 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F }, | |
65 | { 0, } | |
66 | }; | |
67 | ||
68 | MODULE_DEVICE_TABLE(parisc, snd_harmony_devtable); | |
69 | ||
70 | #define NAME "harmony" | |
71 | #define PFX NAME ": " | |
72 | ||
d236d361 | 73 | static const unsigned int snd_harmony_rates[] = { |
1da177e4 LT |
74 | 5512, 6615, 8000, 9600, |
75 | 11025, 16000, 18900, 22050, | |
76 | 27428, 32000, 33075, 37800, | |
77 | 44100, 48000 | |
78 | }; | |
79 | ||
d236d361 | 80 | static const unsigned int rate_bits[14] = { |
1da177e4 LT |
81 | HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ, |
82 | HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ, | |
83 | HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ, | |
84 | HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ, | |
85 | HARMONY_SR_44KHZ, HARMONY_SR_48KHZ | |
86 | }; | |
87 | ||
d236d361 | 88 | static const struct snd_pcm_hw_constraint_list hw_constraint_rates = { |
1da177e4 LT |
89 | .count = ARRAY_SIZE(snd_harmony_rates), |
90 | .list = snd_harmony_rates, | |
91 | .mask = 0, | |
92 | }; | |
93 | ||
67b1020d TI |
94 | static inline unsigned long |
95 | harmony_read(struct snd_harmony *h, unsigned r) | |
1da177e4 LT |
96 | { |
97 | return __raw_readl(h->iobase + r); | |
98 | } | |
99 | ||
67b1020d TI |
100 | static inline void |
101 | harmony_write(struct snd_harmony *h, unsigned r, unsigned long v) | |
1da177e4 LT |
102 | { |
103 | __raw_writel(v, h->iobase + r); | |
104 | } | |
105 | ||
67b1020d TI |
106 | static inline void |
107 | harmony_wait_for_control(struct snd_harmony *h) | |
1da177e4 LT |
108 | { |
109 | while (harmony_read(h, HARMONY_CNTL) & HARMONY_CNTL_C) ; | |
110 | } | |
111 | ||
67b1020d TI |
112 | static inline void |
113 | harmony_reset(struct snd_harmony *h) | |
1da177e4 LT |
114 | { |
115 | harmony_write(h, HARMONY_RESET, 1); | |
116 | mdelay(50); | |
117 | harmony_write(h, HARMONY_RESET, 0); | |
118 | } | |
119 | ||
120 | static void | |
67b1020d | 121 | harmony_disable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
122 | { |
123 | u32 dstatus; | |
124 | harmony_wait_for_control(h); | |
125 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
126 | dstatus &= ~HARMONY_DSTATUS_IE; | |
127 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
128 | } | |
129 | ||
130 | static void | |
67b1020d | 131 | harmony_enable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
132 | { |
133 | u32 dstatus; | |
134 | harmony_wait_for_control(h); | |
135 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
136 | dstatus |= HARMONY_DSTATUS_IE; | |
137 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
138 | } | |
139 | ||
140 | static void | |
67b1020d | 141 | harmony_mute(struct snd_harmony *h) |
1da177e4 LT |
142 | { |
143 | unsigned long flags; | |
144 | ||
145 | spin_lock_irqsave(&h->mixer_lock, flags); | |
146 | harmony_wait_for_control(h); | |
147 | harmony_write(h, HARMONY_GAINCTL, HARMONY_GAIN_SILENCE); | |
148 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
149 | } | |
150 | ||
151 | static void | |
67b1020d | 152 | harmony_unmute(struct snd_harmony *h) |
1da177e4 LT |
153 | { |
154 | unsigned long flags; | |
155 | ||
156 | spin_lock_irqsave(&h->mixer_lock, flags); | |
157 | harmony_wait_for_control(h); | |
158 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
159 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
160 | } | |
161 | ||
162 | static void | |
67b1020d | 163 | harmony_set_control(struct snd_harmony *h) |
1da177e4 LT |
164 | { |
165 | u32 ctrl; | |
166 | unsigned long flags; | |
167 | ||
168 | spin_lock_irqsave(&h->lock, flags); | |
169 | ||
170 | ctrl = (HARMONY_CNTL_C | | |
171 | (h->st.format << 6) | | |
172 | (h->st.stereo << 5) | | |
173 | (h->st.rate)); | |
174 | ||
175 | harmony_wait_for_control(h); | |
176 | harmony_write(h, HARMONY_CNTL, ctrl); | |
177 | ||
178 | spin_unlock_irqrestore(&h->lock, flags); | |
179 | } | |
180 | ||
181 | static irqreturn_t | |
7d12e780 | 182 | snd_harmony_interrupt(int irq, void *dev) |
1da177e4 LT |
183 | { |
184 | u32 dstatus; | |
67b1020d | 185 | struct snd_harmony *h = dev; |
1da177e4 LT |
186 | |
187 | spin_lock(&h->lock); | |
188 | harmony_disable_interrupts(h); | |
189 | harmony_wait_for_control(h); | |
190 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
191 | spin_unlock(&h->lock); | |
192 | ||
193 | if (dstatus & HARMONY_DSTATUS_PN) { | |
3a165680 | 194 | if (h->psubs && h->st.playing) { |
1da177e4 LT |
195 | spin_lock(&h->lock); |
196 | h->pbuf.buf += h->pbuf.count; /* PAGE_SIZE */ | |
197 | h->pbuf.buf %= h->pbuf.size; /* MAX_BUFS*PAGE_SIZE */ | |
198 | ||
199 | harmony_write(h, HARMONY_PNXTADD, | |
200 | h->pbuf.addr + h->pbuf.buf); | |
201 | h->stats.play_intr++; | |
202 | spin_unlock(&h->lock); | |
203 | snd_pcm_period_elapsed(h->psubs); | |
204 | } else { | |
205 | spin_lock(&h->lock); | |
206 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
207 | h->stats.silence_intr++; | |
208 | spin_unlock(&h->lock); | |
209 | } | |
210 | } | |
211 | ||
212 | if (dstatus & HARMONY_DSTATUS_RN) { | |
3a165680 | 213 | if (h->csubs && h->st.capturing) { |
1da177e4 LT |
214 | spin_lock(&h->lock); |
215 | h->cbuf.buf += h->cbuf.count; | |
216 | h->cbuf.buf %= h->cbuf.size; | |
217 | ||
218 | harmony_write(h, HARMONY_RNXTADD, | |
219 | h->cbuf.addr + h->cbuf.buf); | |
220 | h->stats.rec_intr++; | |
221 | spin_unlock(&h->lock); | |
222 | snd_pcm_period_elapsed(h->csubs); | |
223 | } else { | |
224 | spin_lock(&h->lock); | |
225 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
226 | h->stats.graveyard_intr++; | |
227 | spin_unlock(&h->lock); | |
228 | } | |
229 | } | |
230 | ||
231 | spin_lock(&h->lock); | |
232 | harmony_enable_interrupts(h); | |
233 | spin_unlock(&h->lock); | |
234 | ||
235 | return IRQ_HANDLED; | |
236 | } | |
237 | ||
238 | static unsigned int | |
239 | snd_harmony_rate_bits(int rate) | |
240 | { | |
241 | unsigned int i; | |
242 | ||
243 | for (i = 0; i < ARRAY_SIZE(snd_harmony_rates); i++) | |
244 | if (snd_harmony_rates[i] == rate) | |
245 | return rate_bits[i]; | |
246 | ||
247 | return HARMONY_SR_44KHZ; | |
248 | } | |
249 | ||
a977d045 | 250 | static const struct snd_pcm_hardware snd_harmony_playback = |
1da177e4 LT |
251 | { |
252 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
253 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
254 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
255 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
256 | SNDRV_PCM_FMTBIT_A_LAW), | |
257 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
258 | SNDRV_PCM_RATE_KNOT), | |
259 | .rate_min = 5512, | |
260 | .rate_max = 48000, | |
261 | .channels_min = 1, | |
262 | .channels_max = 2, | |
263 | .buffer_bytes_max = MAX_BUF_SIZE, | |
264 | .period_bytes_min = BUF_SIZE, | |
265 | .period_bytes_max = BUF_SIZE, | |
266 | .periods_min = 1, | |
267 | .periods_max = MAX_BUFS, | |
268 | .fifo_size = 0, | |
269 | }; | |
270 | ||
a977d045 | 271 | static const struct snd_pcm_hardware snd_harmony_capture = |
1da177e4 LT |
272 | { |
273 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
274 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
275 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
276 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
277 | SNDRV_PCM_FMTBIT_A_LAW), | |
278 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
279 | SNDRV_PCM_RATE_KNOT), | |
280 | .rate_min = 5512, | |
281 | .rate_max = 48000, | |
282 | .channels_min = 1, | |
283 | .channels_max = 2, | |
284 | .buffer_bytes_max = MAX_BUF_SIZE, | |
285 | .period_bytes_min = BUF_SIZE, | |
286 | .period_bytes_max = BUF_SIZE, | |
287 | .periods_min = 1, | |
288 | .periods_max = MAX_BUFS, | |
289 | .fifo_size = 0, | |
290 | }; | |
291 | ||
292 | static int | |
67b1020d | 293 | snd_harmony_playback_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 294 | { |
67b1020d | 295 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
296 | |
297 | if (h->st.capturing) | |
298 | return -EBUSY; | |
299 | ||
03f9ae25 | 300 | spin_lock(&h->lock); |
1da177e4 LT |
301 | switch (cmd) { |
302 | case SNDRV_PCM_TRIGGER_START: | |
303 | h->st.playing = 1; | |
304 | harmony_write(h, HARMONY_PNXTADD, h->pbuf.addr); | |
305 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
306 | harmony_unmute(h); | |
307 | harmony_enable_interrupts(h); | |
308 | break; | |
309 | case SNDRV_PCM_TRIGGER_STOP: | |
310 | h->st.playing = 0; | |
311 | harmony_mute(h); | |
3a165680 | 312 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); |
1da177e4 LT |
313 | harmony_disable_interrupts(h); |
314 | break; | |
315 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
316 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
317 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
318 | default: | |
03f9ae25 | 319 | spin_unlock(&h->lock); |
1da177e4 LT |
320 | snd_BUG(); |
321 | return -EINVAL; | |
322 | } | |
03f9ae25 | 323 | spin_unlock(&h->lock); |
1da177e4 LT |
324 | |
325 | return 0; | |
326 | } | |
327 | ||
328 | static int | |
67b1020d | 329 | snd_harmony_capture_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 330 | { |
67b1020d | 331 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
332 | |
333 | if (h->st.playing) | |
334 | return -EBUSY; | |
335 | ||
03f9ae25 | 336 | spin_lock(&h->lock); |
1da177e4 LT |
337 | switch (cmd) { |
338 | case SNDRV_PCM_TRIGGER_START: | |
339 | h->st.capturing = 1; | |
340 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
341 | harmony_write(h, HARMONY_RNXTADD, h->cbuf.addr); | |
342 | harmony_unmute(h); | |
343 | harmony_enable_interrupts(h); | |
344 | break; | |
345 | case SNDRV_PCM_TRIGGER_STOP: | |
346 | h->st.capturing = 0; | |
3a165680 SB |
347 | harmony_mute(h); |
348 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
349 | harmony_disable_interrupts(h); | |
1da177e4 LT |
350 | break; |
351 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
352 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
353 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
354 | default: | |
03f9ae25 | 355 | spin_unlock(&h->lock); |
1da177e4 LT |
356 | snd_BUG(); |
357 | return -EINVAL; | |
358 | } | |
03f9ae25 | 359 | spin_unlock(&h->lock); |
1da177e4 LT |
360 | |
361 | return 0; | |
362 | } | |
363 | ||
364 | static int | |
67b1020d | 365 | snd_harmony_set_data_format(struct snd_harmony *h, int fmt, int force) |
1da177e4 LT |
366 | { |
367 | int o = h->st.format; | |
368 | int n; | |
369 | ||
370 | switch(fmt) { | |
371 | case SNDRV_PCM_FORMAT_S16_BE: | |
372 | n = HARMONY_DF_16BIT_LINEAR; | |
373 | break; | |
374 | case SNDRV_PCM_FORMAT_A_LAW: | |
375 | n = HARMONY_DF_8BIT_ALAW; | |
376 | break; | |
377 | case SNDRV_PCM_FORMAT_MU_LAW: | |
378 | n = HARMONY_DF_8BIT_ULAW; | |
379 | break; | |
380 | default: | |
381 | n = HARMONY_DF_16BIT_LINEAR; | |
382 | break; | |
383 | } | |
384 | ||
385 | if (force || o != n) { | |
386 | snd_pcm_format_set_silence(fmt, h->sdma.area, SILENCE_BUFSZ / | |
387 | (snd_pcm_format_physical_width(fmt) | |
388 | / 8)); | |
389 | } | |
390 | ||
391 | return n; | |
392 | } | |
393 | ||
394 | static int | |
67b1020d | 395 | snd_harmony_playback_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 396 | { |
67b1020d TI |
397 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
398 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
399 | |
400 | if (h->st.capturing) | |
401 | return -EBUSY; | |
402 | ||
403 | h->pbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
404 | h->pbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
405 | if (h->pbuf.buf >= h->pbuf.size) |
406 | h->pbuf.buf = 0; | |
1da177e4 LT |
407 | h->st.playing = 0; |
408 | ||
409 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
410 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
411 | ||
412 | if (rt->channels == 2) | |
413 | h->st.stereo = HARMONY_SS_STEREO; | |
414 | else | |
415 | h->st.stereo = HARMONY_SS_MONO; | |
416 | ||
417 | harmony_set_control(h); | |
418 | ||
419 | h->pbuf.addr = rt->dma_addr; | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
424 | static int | |
67b1020d | 425 | snd_harmony_capture_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 426 | { |
67b1020d TI |
427 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
428 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
429 | |
430 | if (h->st.playing) | |
431 | return -EBUSY; | |
432 | ||
433 | h->cbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
434 | h->cbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
435 | if (h->cbuf.buf >= h->cbuf.size) |
436 | h->cbuf.buf = 0; | |
1da177e4 LT |
437 | h->st.capturing = 0; |
438 | ||
439 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
440 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
441 | ||
442 | if (rt->channels == 2) | |
443 | h->st.stereo = HARMONY_SS_STEREO; | |
444 | else | |
445 | h->st.stereo = HARMONY_SS_MONO; | |
446 | ||
447 | harmony_set_control(h); | |
448 | ||
449 | h->cbuf.addr = rt->dma_addr; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | static snd_pcm_uframes_t | |
67b1020d | 455 | snd_harmony_playback_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 456 | { |
67b1020d TI |
457 | struct snd_pcm_runtime *rt = ss->runtime; |
458 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
459 | unsigned long pcuradd; |
460 | unsigned long played; | |
461 | ||
462 | if (!(h->st.playing) || (h->psubs == NULL)) | |
463 | return 0; | |
464 | ||
465 | if ((h->pbuf.addr == 0) || (h->pbuf.size == 0)) | |
466 | return 0; | |
467 | ||
468 | pcuradd = harmony_read(h, HARMONY_PCURADD); | |
469 | played = pcuradd - h->pbuf.addr; | |
470 | ||
471 | #ifdef HARMONY_DEBUG | |
472 | printk(KERN_DEBUG PFX "playback_pointer is 0x%lx-0x%lx = %d bytes\n", | |
473 | pcuradd, h->pbuf.addr, played); | |
474 | #endif | |
475 | ||
476 | if (pcuradd > h->pbuf.addr + h->pbuf.size) { | |
477 | return 0; | |
478 | } | |
479 | ||
480 | return bytes_to_frames(rt, played); | |
481 | } | |
482 | ||
483 | static snd_pcm_uframes_t | |
67b1020d | 484 | snd_harmony_capture_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 485 | { |
67b1020d TI |
486 | struct snd_pcm_runtime *rt = ss->runtime; |
487 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
488 | unsigned long rcuradd; |
489 | unsigned long caught; | |
490 | ||
491 | if (!(h->st.capturing) || (h->csubs == NULL)) | |
492 | return 0; | |
493 | ||
494 | if ((h->cbuf.addr == 0) || (h->cbuf.size == 0)) | |
495 | return 0; | |
496 | ||
497 | rcuradd = harmony_read(h, HARMONY_RCURADD); | |
498 | caught = rcuradd - h->cbuf.addr; | |
499 | ||
500 | #ifdef HARMONY_DEBUG | |
501 | printk(KERN_DEBUG PFX "capture_pointer is 0x%lx-0x%lx = %d bytes\n", | |
502 | rcuradd, h->cbuf.addr, caught); | |
503 | #endif | |
504 | ||
505 | if (rcuradd > h->cbuf.addr + h->cbuf.size) { | |
506 | return 0; | |
507 | } | |
508 | ||
509 | return bytes_to_frames(rt, caught); | |
510 | } | |
511 | ||
512 | static int | |
67b1020d | 513 | snd_harmony_playback_open(struct snd_pcm_substream *ss) |
1da177e4 | 514 | { |
67b1020d TI |
515 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
516 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
517 | int err; |
518 | ||
519 | h->psubs = ss; | |
520 | rt->hw = snd_harmony_playback; | |
521 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
522 | &hw_constraint_rates); | |
523 | ||
524 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
525 | if (err < 0) | |
526 | return err; | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | static int | |
67b1020d | 532 | snd_harmony_capture_open(struct snd_pcm_substream *ss) |
1da177e4 | 533 | { |
67b1020d TI |
534 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
535 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
536 | int err; |
537 | ||
538 | h->csubs = ss; | |
539 | rt->hw = snd_harmony_capture; | |
540 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
541 | &hw_constraint_rates); | |
542 | ||
543 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
544 | if (err < 0) | |
545 | return err; | |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | static int | |
67b1020d | 551 | snd_harmony_playback_close(struct snd_pcm_substream *ss) |
1da177e4 | 552 | { |
67b1020d | 553 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
554 | h->psubs = NULL; |
555 | return 0; | |
556 | } | |
557 | ||
558 | static int | |
67b1020d | 559 | snd_harmony_capture_close(struct snd_pcm_substream *ss) |
1da177e4 | 560 | { |
67b1020d | 561 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
562 | h->csubs = NULL; |
563 | return 0; | |
564 | } | |
565 | ||
566 | static int | |
67b1020d TI |
567 | snd_harmony_hw_params(struct snd_pcm_substream *ss, |
568 | struct snd_pcm_hw_params *hw) | |
1da177e4 LT |
569 | { |
570 | int err; | |
67b1020d | 571 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
572 | |
573 | err = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw)); | |
574 | if (err > 0 && h->dma.type == SNDRV_DMA_TYPE_CONTINUOUS) | |
575 | ss->runtime->dma_addr = __pa(ss->runtime->dma_area); | |
576 | ||
577 | return err; | |
578 | } | |
579 | ||
580 | static int | |
67b1020d | 581 | snd_harmony_hw_free(struct snd_pcm_substream *ss) |
1da177e4 LT |
582 | { |
583 | return snd_pcm_lib_free_pages(ss); | |
584 | } | |
585 | ||
c2992b19 | 586 | static const struct snd_pcm_ops snd_harmony_playback_ops = { |
1da177e4 LT |
587 | .open = snd_harmony_playback_open, |
588 | .close = snd_harmony_playback_close, | |
589 | .ioctl = snd_pcm_lib_ioctl, | |
590 | .hw_params = snd_harmony_hw_params, | |
591 | .hw_free = snd_harmony_hw_free, | |
592 | .prepare = snd_harmony_playback_prepare, | |
593 | .trigger = snd_harmony_playback_trigger, | |
594 | .pointer = snd_harmony_playback_pointer, | |
595 | }; | |
596 | ||
c2992b19 | 597 | static const struct snd_pcm_ops snd_harmony_capture_ops = { |
1da177e4 LT |
598 | .open = snd_harmony_capture_open, |
599 | .close = snd_harmony_capture_close, | |
600 | .ioctl = snd_pcm_lib_ioctl, | |
601 | .hw_params = snd_harmony_hw_params, | |
602 | .hw_free = snd_harmony_hw_free, | |
603 | .prepare = snd_harmony_capture_prepare, | |
604 | .trigger = snd_harmony_capture_trigger, | |
605 | .pointer = snd_harmony_capture_pointer, | |
606 | }; | |
607 | ||
608 | static int | |
67b1020d | 609 | snd_harmony_pcm_init(struct snd_harmony *h) |
1da177e4 | 610 | { |
67b1020d | 611 | struct snd_pcm *pcm; |
1da177e4 LT |
612 | int err; |
613 | ||
e8e0929d JL |
614 | if (snd_BUG_ON(!h)) |
615 | return -EINVAL; | |
616 | ||
1da177e4 LT |
617 | harmony_disable_interrupts(h); |
618 | ||
619 | err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); | |
620 | if (err < 0) | |
621 | return err; | |
622 | ||
623 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
624 | &snd_harmony_playback_ops); | |
625 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
626 | &snd_harmony_capture_ops); | |
627 | ||
628 | pcm->private_data = h; | |
629 | pcm->info_flags = 0; | |
630 | strcpy(pcm->name, "harmony"); | |
631 | h->pcm = pcm; | |
632 | ||
633 | h->psubs = NULL; | |
634 | h->csubs = NULL; | |
635 | ||
636 | /* initialize graveyard buffer */ | |
637 | h->dma.type = SNDRV_DMA_TYPE_DEV; | |
638 | h->dma.dev = &h->dev->dev; | |
639 | err = snd_dma_alloc_pages(h->dma.type, | |
640 | h->dma.dev, | |
641 | BUF_SIZE*GRAVEYARD_BUFS, | |
642 | &h->gdma); | |
643 | if (err < 0) { | |
644 | printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n"); | |
645 | return err; | |
646 | } | |
647 | ||
648 | /* initialize silence buffers */ | |
649 | err = snd_dma_alloc_pages(h->dma.type, | |
650 | h->dma.dev, | |
651 | BUF_SIZE*SILENCE_BUFS, | |
652 | &h->sdma); | |
653 | if (err < 0) { | |
654 | printk(KERN_ERR PFX "cannot allocate silence buffer!\n"); | |
655 | return err; | |
656 | } | |
657 | ||
658 | /* pre-allocate space for DMA */ | |
f32e5616 TI |
659 | snd_pcm_lib_preallocate_pages_for_all(pcm, h->dma.type, h->dma.dev, |
660 | MAX_BUF_SIZE, MAX_BUF_SIZE); | |
1da177e4 LT |
661 | |
662 | h->st.format = snd_harmony_set_data_format(h, | |
663 | SNDRV_PCM_FORMAT_S16_BE, 1); | |
664 | ||
665 | return 0; | |
666 | } | |
667 | ||
668 | static void | |
67b1020d | 669 | snd_harmony_set_new_gain(struct snd_harmony *h) |
1da177e4 LT |
670 | { |
671 | harmony_wait_for_control(h); | |
672 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
673 | } | |
674 | ||
675 | static int | |
67b1020d TI |
676 | snd_harmony_mixercontrol_info(struct snd_kcontrol *kc, |
677 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
678 | { |
679 | int mask = (kc->private_value >> 16) & 0xff; | |
680 | int left_shift = (kc->private_value) & 0xff; | |
681 | int right_shift = (kc->private_value >> 8) & 0xff; | |
682 | ||
683 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : | |
684 | SNDRV_CTL_ELEM_TYPE_INTEGER; | |
685 | uinfo->count = left_shift == right_shift ? 1 : 2; | |
686 | uinfo->value.integer.min = 0; | |
687 | uinfo->value.integer.max = mask; | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | static int | |
67b1020d TI |
693 | snd_harmony_volume_get(struct snd_kcontrol *kc, |
694 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 695 | { |
67b1020d | 696 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
697 | int shift_left = (kc->private_value) & 0xff; |
698 | int shift_right = (kc->private_value >> 8) & 0xff; | |
699 | int mask = (kc->private_value >> 16) & 0xff; | |
700 | int invert = (kc->private_value >> 24) & 0xff; | |
701 | int left, right; | |
1da177e4 | 702 | |
03f9ae25 | 703 | spin_lock_irq(&h->mixer_lock); |
1da177e4 LT |
704 | |
705 | left = (h->st.gain >> shift_left) & mask; | |
706 | right = (h->st.gain >> shift_right) & mask; | |
1da177e4 LT |
707 | if (invert) { |
708 | left = mask - left; | |
709 | right = mask - right; | |
710 | } | |
3a165680 | 711 | |
1da177e4 | 712 | ucontrol->value.integer.value[0] = left; |
3a165680 SB |
713 | if (shift_left != shift_right) |
714 | ucontrol->value.integer.value[1] = right; | |
1da177e4 | 715 | |
03f9ae25 | 716 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 LT |
717 | |
718 | return 0; | |
719 | } | |
720 | ||
721 | static int | |
67b1020d TI |
722 | snd_harmony_volume_put(struct snd_kcontrol *kc, |
723 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 724 | { |
67b1020d | 725 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
726 | int shift_left = (kc->private_value) & 0xff; |
727 | int shift_right = (kc->private_value >> 8) & 0xff; | |
728 | int mask = (kc->private_value >> 16) & 0xff; | |
729 | int invert = (kc->private_value >> 24) & 0xff; | |
730 | int left, right; | |
731 | int old_gain = h->st.gain; | |
1da177e4 | 732 | |
03f9ae25 | 733 | spin_lock_irq(&h->mixer_lock); |
3a165680 | 734 | |
1da177e4 | 735 | left = ucontrol->value.integer.value[0] & mask; |
3a165680 | 736 | if (invert) |
1da177e4 | 737 | left = mask - left; |
3a165680 SB |
738 | h->st.gain &= ~( (mask << shift_left ) ); |
739 | h->st.gain |= (left << shift_left); | |
740 | ||
741 | if (shift_left != shift_right) { | |
742 | right = ucontrol->value.integer.value[1] & mask; | |
743 | if (invert) | |
744 | right = mask - right; | |
745 | h->st.gain &= ~( (mask << shift_right) ); | |
746 | h->st.gain |= (right << shift_right); | |
1da177e4 | 747 | } |
3a165680 SB |
748 | |
749 | snd_harmony_set_new_gain(h); | |
750 | ||
03f9ae25 | 751 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
752 | |
753 | return h->st.gain != old_gain; | |
754 | } | |
755 | ||
756 | static int | |
67b1020d TI |
757 | snd_harmony_captureroute_info(struct snd_kcontrol *kc, |
758 | struct snd_ctl_elem_info *uinfo) | |
3a165680 | 759 | { |
3c6a73cc TI |
760 | static const char * const texts[2] = { "Line", "Mic" }; |
761 | ||
762 | return snd_ctl_enum_info(uinfo, 1, 2, texts); | |
3a165680 SB |
763 | } |
764 | ||
765 | static int | |
67b1020d TI |
766 | snd_harmony_captureroute_get(struct snd_kcontrol *kc, |
767 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 768 | { |
67b1020d | 769 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 | 770 | int value; |
3a165680 | 771 | |
03f9ae25 | 772 | spin_lock_irq(&h->mixer_lock); |
3a165680 SB |
773 | |
774 | value = (h->st.gain >> HARMONY_GAIN_IS_SHIFT) & 1; | |
775 | ucontrol->value.enumerated.item[0] = value; | |
776 | ||
03f9ae25 | 777 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
778 | |
779 | return 0; | |
780 | } | |
781 | ||
782 | static int | |
67b1020d TI |
783 | snd_harmony_captureroute_put(struct snd_kcontrol *kc, |
784 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 785 | { |
67b1020d | 786 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 SB |
787 | int value; |
788 | int old_gain = h->st.gain; | |
1da177e4 | 789 | |
03f9ae25 | 790 | spin_lock_irq(&h->mixer_lock); |
1da177e4 | 791 | |
3a165680 SB |
792 | value = ucontrol->value.enumerated.item[0] & 1; |
793 | h->st.gain &= ~HARMONY_GAIN_IS_MASK; | |
794 | h->st.gain |= value << HARMONY_GAIN_IS_SHIFT; | |
795 | ||
1da177e4 LT |
796 | snd_harmony_set_new_gain(h); |
797 | ||
03f9ae25 | 798 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 | 799 | |
3a165680 | 800 | return h->st.gain != old_gain; |
1da177e4 LT |
801 | } |
802 | ||
67b1020d | 803 | #define HARMONY_CONTROLS ARRAY_SIZE(snd_harmony_controls) |
1da177e4 LT |
804 | |
805 | #define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \ | |
806 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
807 | .info = snd_harmony_mixercontrol_info, \ | |
808 | .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \ | |
809 | .private_value = ((left_shift) | ((right_shift) << 8) | \ | |
810 | ((mask) << 16) | ((invert) << 24)) } | |
811 | ||
67b1020d | 812 | static struct snd_kcontrol_new snd_harmony_controls[] = { |
3a165680 | 813 | HARMONY_VOLUME("Master Playback Volume", HARMONY_GAIN_LO_SHIFT, |
1da177e4 LT |
814 | HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1), |
815 | HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT, | |
816 | HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0), | |
3a165680 SB |
817 | HARMONY_VOLUME("Monitor Volume", HARMONY_GAIN_MA_SHIFT, |
818 | HARMONY_GAIN_MA_SHIFT, HARMONY_GAIN_MA, 1), | |
819 | { | |
820 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
821 | .name = "Input Route", | |
822 | .info = snd_harmony_captureroute_info, | |
823 | .get = snd_harmony_captureroute_get, | |
824 | .put = snd_harmony_captureroute_put | |
825 | }, | |
826 | HARMONY_VOLUME("Internal Speaker Switch", HARMONY_GAIN_SE_SHIFT, | |
827 | HARMONY_GAIN_SE_SHIFT, 1, 0), | |
828 | HARMONY_VOLUME("Line-Out Switch", HARMONY_GAIN_LE_SHIFT, | |
829 | HARMONY_GAIN_LE_SHIFT, 1, 0), | |
830 | HARMONY_VOLUME("Headphones Switch", HARMONY_GAIN_HE_SHIFT, | |
831 | HARMONY_GAIN_HE_SHIFT, 1, 0), | |
1da177e4 LT |
832 | }; |
833 | ||
05bcf503 | 834 | static void |
67b1020d | 835 | snd_harmony_mixer_reset(struct snd_harmony *h) |
1da177e4 LT |
836 | { |
837 | harmony_mute(h); | |
838 | harmony_reset(h); | |
839 | h->st.gain = HARMONY_GAIN_DEFAULT; | |
840 | harmony_unmute(h); | |
841 | } | |
842 | ||
05bcf503 | 843 | static int |
67b1020d | 844 | snd_harmony_mixer_init(struct snd_harmony *h) |
1da177e4 | 845 | { |
e8e0929d | 846 | struct snd_card *card; |
1da177e4 LT |
847 | int idx, err; |
848 | ||
5e246b85 | 849 | if (snd_BUG_ON(!h)) |
c86a456b | 850 | return -EINVAL; |
e8e0929d | 851 | card = h->card; |
1da177e4 LT |
852 | strcpy(card->mixername, "Harmony Gain control interface"); |
853 | ||
854 | for (idx = 0; idx < HARMONY_CONTROLS; idx++) { | |
855 | err = snd_ctl_add(card, | |
856 | snd_ctl_new1(&snd_harmony_controls[idx], h)); | |
857 | if (err < 0) | |
858 | return err; | |
859 | } | |
860 | ||
861 | snd_harmony_mixer_reset(h); | |
862 | ||
863 | return 0; | |
864 | } | |
865 | ||
866 | static int | |
67b1020d | 867 | snd_harmony_free(struct snd_harmony *h) |
1da177e4 LT |
868 | { |
869 | if (h->gdma.addr) | |
870 | snd_dma_free_pages(&h->gdma); | |
871 | if (h->sdma.addr) | |
872 | snd_dma_free_pages(&h->sdma); | |
873 | ||
874 | if (h->irq >= 0) | |
875 | free_irq(h->irq, h); | |
876 | ||
ff6defa6 | 877 | iounmap(h->iobase); |
1da177e4 LT |
878 | kfree(h); |
879 | return 0; | |
880 | } | |
881 | ||
882 | static int | |
67b1020d | 883 | snd_harmony_dev_free(struct snd_device *dev) |
1da177e4 | 884 | { |
67b1020d | 885 | struct snd_harmony *h = dev->device_data; |
1da177e4 LT |
886 | return snd_harmony_free(h); |
887 | } | |
888 | ||
05bcf503 | 889 | static int |
67b1020d | 890 | snd_harmony_create(struct snd_card *card, |
1da177e4 | 891 | struct parisc_device *padev, |
67b1020d | 892 | struct snd_harmony **rchip) |
1da177e4 LT |
893 | { |
894 | int err; | |
67b1020d TI |
895 | struct snd_harmony *h; |
896 | static struct snd_device_ops ops = { | |
1da177e4 LT |
897 | .dev_free = snd_harmony_dev_free, |
898 | }; | |
899 | ||
900 | *rchip = NULL; | |
901 | ||
03f9ae25 | 902 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
1da177e4 LT |
903 | if (h == NULL) |
904 | return -ENOMEM; | |
905 | ||
53f01bba | 906 | h->hpa = padev->hpa.start; |
1da177e4 LT |
907 | h->card = card; |
908 | h->dev = padev; | |
03f9ae25 | 909 | h->irq = -1; |
53f01bba | 910 | h->iobase = ioremap_nocache(padev->hpa.start, HARMONY_SIZE); |
1da177e4 LT |
911 | if (h->iobase == NULL) { |
912 | printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n", | |
b04b4f78 | 913 | (unsigned long)padev->hpa.start); |
1da177e4 LT |
914 | err = -EBUSY; |
915 | goto free_and_ret; | |
916 | } | |
917 | ||
03f9ae25 | 918 | err = request_irq(padev->irq, snd_harmony_interrupt, 0, |
1da177e4 LT |
919 | "harmony", h); |
920 | if (err) { | |
921 | printk(KERN_ERR PFX "could not obtain interrupt %d", | |
03f9ae25 | 922 | padev->irq); |
1da177e4 LT |
923 | goto free_and_ret; |
924 | } | |
03f9ae25 | 925 | h->irq = padev->irq; |
1da177e4 LT |
926 | |
927 | spin_lock_init(&h->mixer_lock); | |
928 | spin_lock_init(&h->lock); | |
929 | ||
930 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, | |
931 | h, &ops)) < 0) { | |
932 | goto free_and_ret; | |
933 | } | |
934 | ||
935 | *rchip = h; | |
936 | ||
937 | return 0; | |
938 | ||
939 | free_and_ret: | |
940 | snd_harmony_free(h); | |
941 | return err; | |
942 | } | |
943 | ||
c8dbaa22 | 944 | static int __init |
1da177e4 LT |
945 | snd_harmony_probe(struct parisc_device *padev) |
946 | { | |
947 | int err; | |
67b1020d TI |
948 | struct snd_card *card; |
949 | struct snd_harmony *h; | |
1da177e4 | 950 | |
5f32c314 | 951 | err = snd_card_new(&padev->dev, index, id, THIS_MODULE, 0, &card); |
bd7dd77c TI |
952 | if (err < 0) |
953 | return err; | |
1da177e4 LT |
954 | |
955 | err = snd_harmony_create(card, padev, &h); | |
03f9ae25 | 956 | if (err < 0) |
1da177e4 | 957 | goto free_and_ret; |
1da177e4 LT |
958 | |
959 | err = snd_harmony_pcm_init(h); | |
03f9ae25 | 960 | if (err < 0) |
1da177e4 | 961 | goto free_and_ret; |
1da177e4 LT |
962 | |
963 | err = snd_harmony_mixer_init(h); | |
03f9ae25 | 964 | if (err < 0) |
1da177e4 | 965 | goto free_and_ret; |
1da177e4 LT |
966 | |
967 | strcpy(card->driver, "harmony"); | |
968 | strcpy(card->shortname, "Harmony"); | |
969 | sprintf(card->longname, "%s at 0x%lx, irq %i", | |
970 | card->shortname, h->hpa, h->irq); | |
971 | ||
972 | err = snd_card_register(card); | |
03f9ae25 | 973 | if (err < 0) |
1da177e4 | 974 | goto free_and_ret; |
1da177e4 | 975 | |
03f9ae25 | 976 | parisc_set_drvdata(padev, card); |
1da177e4 LT |
977 | return 0; |
978 | ||
979 | free_and_ret: | |
980 | snd_card_free(card); | |
981 | return err; | |
982 | } | |
983 | ||
c8dbaa22 | 984 | static int __exit |
1da177e4 LT |
985 | snd_harmony_remove(struct parisc_device *padev) |
986 | { | |
03f9ae25 | 987 | snd_card_free(parisc_get_drvdata(padev)); |
1da177e4 LT |
988 | return 0; |
989 | } | |
990 | ||
c8dbaa22 | 991 | static struct parisc_driver snd_harmony_driver __refdata = { |
1da177e4 LT |
992 | .name = "harmony", |
993 | .id_table = snd_harmony_devtable, | |
994 | .probe = snd_harmony_probe, | |
c8dbaa22 | 995 | .remove = __exit_p(snd_harmony_remove), |
1da177e4 LT |
996 | }; |
997 | ||
998 | static int __init | |
999 | alsa_harmony_init(void) | |
1000 | { | |
03f9ae25 | 1001 | return register_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1002 | } |
1003 | ||
1004 | static void __exit | |
1005 | alsa_harmony_fini(void) | |
1006 | { | |
67b1020d | 1007 | unregister_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1008 | } |
1009 | ||
1010 | MODULE_LICENSE("GPL"); | |
1011 | MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>"); | |
1012 | MODULE_DESCRIPTION("Harmony sound driver"); | |
1013 | ||
1014 | module_init(alsa_harmony_init); | |
1015 | module_exit(alsa_harmony_fini); |