Commit | Line | Data |
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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 | ||
1da177e4 LT |
48 | #include <sound/core.h> |
49 | #include <sound/pcm.h> | |
50 | #include <sound/control.h> | |
51 | #include <sound/rawmidi.h> | |
52 | #include <sound/initval.h> | |
53 | #include <sound/info.h> | |
54 | ||
55 | #include <asm/io.h> | |
56 | #include <asm/hardware.h> | |
57 | #include <asm/parisc-device.h> | |
58 | ||
59 | #include "harmony.h" | |
60 | ||
03f9ae25 TI |
61 | static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ |
62 | static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ | |
63 | module_param(index, int, 0444); | |
64 | MODULE_PARM_DESC(index, "Index value for Harmony driver."); | |
65 | module_param(id, charp, 0444); | |
66 | MODULE_PARM_DESC(id, "ID string for Harmony driver."); | |
67 | ||
68 | ||
1da177e4 LT |
69 | static struct parisc_device_id snd_harmony_devtable[] = { |
70 | /* bushmaster / flounder */ | |
71 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, | |
72 | /* 712 / 715 */ | |
73 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B }, | |
74 | /* pace */ | |
75 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E }, | |
76 | /* outfield / coral II */ | |
77 | { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F }, | |
78 | { 0, } | |
79 | }; | |
80 | ||
81 | MODULE_DEVICE_TABLE(parisc, snd_harmony_devtable); | |
82 | ||
83 | #define NAME "harmony" | |
84 | #define PFX NAME ": " | |
85 | ||
86 | static unsigned int snd_harmony_rates[] = { | |
87 | 5512, 6615, 8000, 9600, | |
88 | 11025, 16000, 18900, 22050, | |
89 | 27428, 32000, 33075, 37800, | |
90 | 44100, 48000 | |
91 | }; | |
92 | ||
93 | static unsigned int rate_bits[14] = { | |
94 | HARMONY_SR_5KHZ, HARMONY_SR_6KHZ, HARMONY_SR_8KHZ, | |
95 | HARMONY_SR_9KHZ, HARMONY_SR_11KHZ, HARMONY_SR_16KHZ, | |
96 | HARMONY_SR_18KHZ, HARMONY_SR_22KHZ, HARMONY_SR_27KHZ, | |
97 | HARMONY_SR_32KHZ, HARMONY_SR_33KHZ, HARMONY_SR_37KHZ, | |
98 | HARMONY_SR_44KHZ, HARMONY_SR_48KHZ | |
99 | }; | |
100 | ||
67b1020d | 101 | static struct snd_pcm_hw_constraint_list hw_constraint_rates = { |
1da177e4 LT |
102 | .count = ARRAY_SIZE(snd_harmony_rates), |
103 | .list = snd_harmony_rates, | |
104 | .mask = 0, | |
105 | }; | |
106 | ||
67b1020d TI |
107 | static inline unsigned long |
108 | harmony_read(struct snd_harmony *h, unsigned r) | |
1da177e4 LT |
109 | { |
110 | return __raw_readl(h->iobase + r); | |
111 | } | |
112 | ||
67b1020d TI |
113 | static inline void |
114 | harmony_write(struct snd_harmony *h, unsigned r, unsigned long v) | |
1da177e4 LT |
115 | { |
116 | __raw_writel(v, h->iobase + r); | |
117 | } | |
118 | ||
67b1020d TI |
119 | static inline void |
120 | harmony_wait_for_control(struct snd_harmony *h) | |
1da177e4 LT |
121 | { |
122 | while (harmony_read(h, HARMONY_CNTL) & HARMONY_CNTL_C) ; | |
123 | } | |
124 | ||
67b1020d TI |
125 | static inline void |
126 | harmony_reset(struct snd_harmony *h) | |
1da177e4 LT |
127 | { |
128 | harmony_write(h, HARMONY_RESET, 1); | |
129 | mdelay(50); | |
130 | harmony_write(h, HARMONY_RESET, 0); | |
131 | } | |
132 | ||
133 | static void | |
67b1020d | 134 | harmony_disable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
135 | { |
136 | u32 dstatus; | |
137 | harmony_wait_for_control(h); | |
138 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
139 | dstatus &= ~HARMONY_DSTATUS_IE; | |
140 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
141 | } | |
142 | ||
143 | static void | |
67b1020d | 144 | harmony_enable_interrupts(struct snd_harmony *h) |
1da177e4 LT |
145 | { |
146 | u32 dstatus; | |
147 | harmony_wait_for_control(h); | |
148 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
149 | dstatus |= HARMONY_DSTATUS_IE; | |
150 | harmony_write(h, HARMONY_DSTATUS, dstatus); | |
151 | } | |
152 | ||
153 | static void | |
67b1020d | 154 | harmony_mute(struct snd_harmony *h) |
1da177e4 LT |
155 | { |
156 | unsigned long flags; | |
157 | ||
158 | spin_lock_irqsave(&h->mixer_lock, flags); | |
159 | harmony_wait_for_control(h); | |
160 | harmony_write(h, HARMONY_GAINCTL, HARMONY_GAIN_SILENCE); | |
161 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
162 | } | |
163 | ||
164 | static void | |
67b1020d | 165 | harmony_unmute(struct snd_harmony *h) |
1da177e4 LT |
166 | { |
167 | unsigned long flags; | |
168 | ||
169 | spin_lock_irqsave(&h->mixer_lock, flags); | |
170 | harmony_wait_for_control(h); | |
171 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
172 | spin_unlock_irqrestore(&h->mixer_lock, flags); | |
173 | } | |
174 | ||
175 | static void | |
67b1020d | 176 | harmony_set_control(struct snd_harmony *h) |
1da177e4 LT |
177 | { |
178 | u32 ctrl; | |
179 | unsigned long flags; | |
180 | ||
181 | spin_lock_irqsave(&h->lock, flags); | |
182 | ||
183 | ctrl = (HARMONY_CNTL_C | | |
184 | (h->st.format << 6) | | |
185 | (h->st.stereo << 5) | | |
186 | (h->st.rate)); | |
187 | ||
188 | harmony_wait_for_control(h); | |
189 | harmony_write(h, HARMONY_CNTL, ctrl); | |
190 | ||
191 | spin_unlock_irqrestore(&h->lock, flags); | |
192 | } | |
193 | ||
194 | static irqreturn_t | |
7d12e780 | 195 | snd_harmony_interrupt(int irq, void *dev) |
1da177e4 LT |
196 | { |
197 | u32 dstatus; | |
67b1020d | 198 | struct snd_harmony *h = dev; |
1da177e4 LT |
199 | |
200 | spin_lock(&h->lock); | |
201 | harmony_disable_interrupts(h); | |
202 | harmony_wait_for_control(h); | |
203 | dstatus = harmony_read(h, HARMONY_DSTATUS); | |
204 | spin_unlock(&h->lock); | |
205 | ||
206 | if (dstatus & HARMONY_DSTATUS_PN) { | |
3a165680 | 207 | if (h->psubs && h->st.playing) { |
1da177e4 LT |
208 | spin_lock(&h->lock); |
209 | h->pbuf.buf += h->pbuf.count; /* PAGE_SIZE */ | |
210 | h->pbuf.buf %= h->pbuf.size; /* MAX_BUFS*PAGE_SIZE */ | |
211 | ||
212 | harmony_write(h, HARMONY_PNXTADD, | |
213 | h->pbuf.addr + h->pbuf.buf); | |
214 | h->stats.play_intr++; | |
215 | spin_unlock(&h->lock); | |
216 | snd_pcm_period_elapsed(h->psubs); | |
217 | } else { | |
218 | spin_lock(&h->lock); | |
219 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
220 | h->stats.silence_intr++; | |
221 | spin_unlock(&h->lock); | |
222 | } | |
223 | } | |
224 | ||
225 | if (dstatus & HARMONY_DSTATUS_RN) { | |
3a165680 | 226 | if (h->csubs && h->st.capturing) { |
1da177e4 LT |
227 | spin_lock(&h->lock); |
228 | h->cbuf.buf += h->cbuf.count; | |
229 | h->cbuf.buf %= h->cbuf.size; | |
230 | ||
231 | harmony_write(h, HARMONY_RNXTADD, | |
232 | h->cbuf.addr + h->cbuf.buf); | |
233 | h->stats.rec_intr++; | |
234 | spin_unlock(&h->lock); | |
235 | snd_pcm_period_elapsed(h->csubs); | |
236 | } else { | |
237 | spin_lock(&h->lock); | |
238 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
239 | h->stats.graveyard_intr++; | |
240 | spin_unlock(&h->lock); | |
241 | } | |
242 | } | |
243 | ||
244 | spin_lock(&h->lock); | |
245 | harmony_enable_interrupts(h); | |
246 | spin_unlock(&h->lock); | |
247 | ||
248 | return IRQ_HANDLED; | |
249 | } | |
250 | ||
251 | static unsigned int | |
252 | snd_harmony_rate_bits(int rate) | |
253 | { | |
254 | unsigned int i; | |
255 | ||
256 | for (i = 0; i < ARRAY_SIZE(snd_harmony_rates); i++) | |
257 | if (snd_harmony_rates[i] == rate) | |
258 | return rate_bits[i]; | |
259 | ||
260 | return HARMONY_SR_44KHZ; | |
261 | } | |
262 | ||
67b1020d | 263 | static struct snd_pcm_hardware snd_harmony_playback = |
1da177e4 LT |
264 | { |
265 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
266 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
267 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
268 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
269 | SNDRV_PCM_FMTBIT_A_LAW), | |
270 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
271 | SNDRV_PCM_RATE_KNOT), | |
272 | .rate_min = 5512, | |
273 | .rate_max = 48000, | |
274 | .channels_min = 1, | |
275 | .channels_max = 2, | |
276 | .buffer_bytes_max = MAX_BUF_SIZE, | |
277 | .period_bytes_min = BUF_SIZE, | |
278 | .period_bytes_max = BUF_SIZE, | |
279 | .periods_min = 1, | |
280 | .periods_max = MAX_BUFS, | |
281 | .fifo_size = 0, | |
282 | }; | |
283 | ||
67b1020d | 284 | static struct snd_pcm_hardware snd_harmony_capture = |
1da177e4 LT |
285 | { |
286 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
287 | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_MMAP_VALID | | |
288 | SNDRV_PCM_INFO_BLOCK_TRANSFER), | |
289 | .formats = (SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_MU_LAW | | |
290 | SNDRV_PCM_FMTBIT_A_LAW), | |
291 | .rates = (SNDRV_PCM_RATE_5512 | SNDRV_PCM_RATE_8000_48000 | | |
292 | SNDRV_PCM_RATE_KNOT), | |
293 | .rate_min = 5512, | |
294 | .rate_max = 48000, | |
295 | .channels_min = 1, | |
296 | .channels_max = 2, | |
297 | .buffer_bytes_max = MAX_BUF_SIZE, | |
298 | .period_bytes_min = BUF_SIZE, | |
299 | .period_bytes_max = BUF_SIZE, | |
300 | .periods_min = 1, | |
301 | .periods_max = MAX_BUFS, | |
302 | .fifo_size = 0, | |
303 | }; | |
304 | ||
305 | static int | |
67b1020d | 306 | snd_harmony_playback_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 307 | { |
67b1020d | 308 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
309 | |
310 | if (h->st.capturing) | |
311 | return -EBUSY; | |
312 | ||
03f9ae25 | 313 | spin_lock(&h->lock); |
1da177e4 LT |
314 | switch (cmd) { |
315 | case SNDRV_PCM_TRIGGER_START: | |
316 | h->st.playing = 1; | |
317 | harmony_write(h, HARMONY_PNXTADD, h->pbuf.addr); | |
318 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
319 | harmony_unmute(h); | |
320 | harmony_enable_interrupts(h); | |
321 | break; | |
322 | case SNDRV_PCM_TRIGGER_STOP: | |
323 | h->st.playing = 0; | |
324 | harmony_mute(h); | |
3a165680 | 325 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); |
1da177e4 LT |
326 | harmony_disable_interrupts(h); |
327 | break; | |
328 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
329 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
330 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
331 | default: | |
03f9ae25 | 332 | spin_unlock(&h->lock); |
1da177e4 LT |
333 | snd_BUG(); |
334 | return -EINVAL; | |
335 | } | |
03f9ae25 | 336 | spin_unlock(&h->lock); |
1da177e4 LT |
337 | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static int | |
67b1020d | 342 | snd_harmony_capture_trigger(struct snd_pcm_substream *ss, int cmd) |
1da177e4 | 343 | { |
67b1020d | 344 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
345 | |
346 | if (h->st.playing) | |
347 | return -EBUSY; | |
348 | ||
03f9ae25 | 349 | spin_lock(&h->lock); |
1da177e4 LT |
350 | switch (cmd) { |
351 | case SNDRV_PCM_TRIGGER_START: | |
352 | h->st.capturing = 1; | |
353 | harmony_write(h, HARMONY_PNXTADD, h->sdma.addr); | |
354 | harmony_write(h, HARMONY_RNXTADD, h->cbuf.addr); | |
355 | harmony_unmute(h); | |
356 | harmony_enable_interrupts(h); | |
357 | break; | |
358 | case SNDRV_PCM_TRIGGER_STOP: | |
359 | h->st.capturing = 0; | |
3a165680 SB |
360 | harmony_mute(h); |
361 | harmony_write(h, HARMONY_RNXTADD, h->gdma.addr); | |
362 | harmony_disable_interrupts(h); | |
1da177e4 LT |
363 | break; |
364 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
365 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
366 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
367 | default: | |
03f9ae25 | 368 | spin_unlock(&h->lock); |
1da177e4 LT |
369 | snd_BUG(); |
370 | return -EINVAL; | |
371 | } | |
03f9ae25 | 372 | spin_unlock(&h->lock); |
1da177e4 LT |
373 | |
374 | return 0; | |
375 | } | |
376 | ||
377 | static int | |
67b1020d | 378 | snd_harmony_set_data_format(struct snd_harmony *h, int fmt, int force) |
1da177e4 LT |
379 | { |
380 | int o = h->st.format; | |
381 | int n; | |
382 | ||
383 | switch(fmt) { | |
384 | case SNDRV_PCM_FORMAT_S16_BE: | |
385 | n = HARMONY_DF_16BIT_LINEAR; | |
386 | break; | |
387 | case SNDRV_PCM_FORMAT_A_LAW: | |
388 | n = HARMONY_DF_8BIT_ALAW; | |
389 | break; | |
390 | case SNDRV_PCM_FORMAT_MU_LAW: | |
391 | n = HARMONY_DF_8BIT_ULAW; | |
392 | break; | |
393 | default: | |
394 | n = HARMONY_DF_16BIT_LINEAR; | |
395 | break; | |
396 | } | |
397 | ||
398 | if (force || o != n) { | |
399 | snd_pcm_format_set_silence(fmt, h->sdma.area, SILENCE_BUFSZ / | |
400 | (snd_pcm_format_physical_width(fmt) | |
401 | / 8)); | |
402 | } | |
403 | ||
404 | return n; | |
405 | } | |
406 | ||
407 | static int | |
67b1020d | 408 | snd_harmony_playback_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 409 | { |
67b1020d TI |
410 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
411 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
412 | |
413 | if (h->st.capturing) | |
414 | return -EBUSY; | |
415 | ||
416 | h->pbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
417 | h->pbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
418 | if (h->pbuf.buf >= h->pbuf.size) |
419 | h->pbuf.buf = 0; | |
1da177e4 LT |
420 | h->st.playing = 0; |
421 | ||
422 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
423 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
424 | ||
425 | if (rt->channels == 2) | |
426 | h->st.stereo = HARMONY_SS_STEREO; | |
427 | else | |
428 | h->st.stereo = HARMONY_SS_MONO; | |
429 | ||
430 | harmony_set_control(h); | |
431 | ||
432 | h->pbuf.addr = rt->dma_addr; | |
433 | ||
434 | return 0; | |
435 | } | |
436 | ||
437 | static int | |
67b1020d | 438 | snd_harmony_capture_prepare(struct snd_pcm_substream *ss) |
1da177e4 | 439 | { |
67b1020d TI |
440 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
441 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
442 | |
443 | if (h->st.playing) | |
444 | return -EBUSY; | |
445 | ||
446 | h->cbuf.size = snd_pcm_lib_buffer_bytes(ss); | |
447 | h->cbuf.count = snd_pcm_lib_period_bytes(ss); | |
3a165680 SB |
448 | if (h->cbuf.buf >= h->cbuf.size) |
449 | h->cbuf.buf = 0; | |
1da177e4 LT |
450 | h->st.capturing = 0; |
451 | ||
452 | h->st.rate = snd_harmony_rate_bits(rt->rate); | |
453 | h->st.format = snd_harmony_set_data_format(h, rt->format, 0); | |
454 | ||
455 | if (rt->channels == 2) | |
456 | h->st.stereo = HARMONY_SS_STEREO; | |
457 | else | |
458 | h->st.stereo = HARMONY_SS_MONO; | |
459 | ||
460 | harmony_set_control(h); | |
461 | ||
462 | h->cbuf.addr = rt->dma_addr; | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | static snd_pcm_uframes_t | |
67b1020d | 468 | snd_harmony_playback_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 469 | { |
67b1020d TI |
470 | struct snd_pcm_runtime *rt = ss->runtime; |
471 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
472 | unsigned long pcuradd; |
473 | unsigned long played; | |
474 | ||
475 | if (!(h->st.playing) || (h->psubs == NULL)) | |
476 | return 0; | |
477 | ||
478 | if ((h->pbuf.addr == 0) || (h->pbuf.size == 0)) | |
479 | return 0; | |
480 | ||
481 | pcuradd = harmony_read(h, HARMONY_PCURADD); | |
482 | played = pcuradd - h->pbuf.addr; | |
483 | ||
484 | #ifdef HARMONY_DEBUG | |
485 | printk(KERN_DEBUG PFX "playback_pointer is 0x%lx-0x%lx = %d bytes\n", | |
486 | pcuradd, h->pbuf.addr, played); | |
487 | #endif | |
488 | ||
489 | if (pcuradd > h->pbuf.addr + h->pbuf.size) { | |
490 | return 0; | |
491 | } | |
492 | ||
493 | return bytes_to_frames(rt, played); | |
494 | } | |
495 | ||
496 | static snd_pcm_uframes_t | |
67b1020d | 497 | snd_harmony_capture_pointer(struct snd_pcm_substream *ss) |
1da177e4 | 498 | { |
67b1020d TI |
499 | struct snd_pcm_runtime *rt = ss->runtime; |
500 | struct snd_harmony *h = snd_pcm_substream_chip(ss); | |
1da177e4 LT |
501 | unsigned long rcuradd; |
502 | unsigned long caught; | |
503 | ||
504 | if (!(h->st.capturing) || (h->csubs == NULL)) | |
505 | return 0; | |
506 | ||
507 | if ((h->cbuf.addr == 0) || (h->cbuf.size == 0)) | |
508 | return 0; | |
509 | ||
510 | rcuradd = harmony_read(h, HARMONY_RCURADD); | |
511 | caught = rcuradd - h->cbuf.addr; | |
512 | ||
513 | #ifdef HARMONY_DEBUG | |
514 | printk(KERN_DEBUG PFX "capture_pointer is 0x%lx-0x%lx = %d bytes\n", | |
515 | rcuradd, h->cbuf.addr, caught); | |
516 | #endif | |
517 | ||
518 | if (rcuradd > h->cbuf.addr + h->cbuf.size) { | |
519 | return 0; | |
520 | } | |
521 | ||
522 | return bytes_to_frames(rt, caught); | |
523 | } | |
524 | ||
525 | static int | |
67b1020d | 526 | snd_harmony_playback_open(struct snd_pcm_substream *ss) |
1da177e4 | 527 | { |
67b1020d TI |
528 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
529 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
530 | int err; |
531 | ||
532 | h->psubs = ss; | |
533 | rt->hw = snd_harmony_playback; | |
534 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
535 | &hw_constraint_rates); | |
536 | ||
537 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
538 | if (err < 0) | |
539 | return err; | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
544 | static int | |
67b1020d | 545 | snd_harmony_capture_open(struct snd_pcm_substream *ss) |
1da177e4 | 546 | { |
67b1020d TI |
547 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
548 | struct snd_pcm_runtime *rt = ss->runtime; | |
1da177e4 LT |
549 | int err; |
550 | ||
551 | h->csubs = ss; | |
552 | rt->hw = snd_harmony_capture; | |
553 | snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE, | |
554 | &hw_constraint_rates); | |
555 | ||
556 | err = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); | |
557 | if (err < 0) | |
558 | return err; | |
559 | ||
560 | return 0; | |
561 | } | |
562 | ||
563 | static int | |
67b1020d | 564 | snd_harmony_playback_close(struct snd_pcm_substream *ss) |
1da177e4 | 565 | { |
67b1020d | 566 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
567 | h->psubs = NULL; |
568 | return 0; | |
569 | } | |
570 | ||
571 | static int | |
67b1020d | 572 | snd_harmony_capture_close(struct snd_pcm_substream *ss) |
1da177e4 | 573 | { |
67b1020d | 574 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
575 | h->csubs = NULL; |
576 | return 0; | |
577 | } | |
578 | ||
579 | static int | |
67b1020d TI |
580 | snd_harmony_hw_params(struct snd_pcm_substream *ss, |
581 | struct snd_pcm_hw_params *hw) | |
1da177e4 LT |
582 | { |
583 | int err; | |
67b1020d | 584 | struct snd_harmony *h = snd_pcm_substream_chip(ss); |
1da177e4 LT |
585 | |
586 | err = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw)); | |
587 | if (err > 0 && h->dma.type == SNDRV_DMA_TYPE_CONTINUOUS) | |
588 | ss->runtime->dma_addr = __pa(ss->runtime->dma_area); | |
589 | ||
590 | return err; | |
591 | } | |
592 | ||
593 | static int | |
67b1020d | 594 | snd_harmony_hw_free(struct snd_pcm_substream *ss) |
1da177e4 LT |
595 | { |
596 | return snd_pcm_lib_free_pages(ss); | |
597 | } | |
598 | ||
67b1020d | 599 | static struct snd_pcm_ops snd_harmony_playback_ops = { |
1da177e4 LT |
600 | .open = snd_harmony_playback_open, |
601 | .close = snd_harmony_playback_close, | |
602 | .ioctl = snd_pcm_lib_ioctl, | |
603 | .hw_params = snd_harmony_hw_params, | |
604 | .hw_free = snd_harmony_hw_free, | |
605 | .prepare = snd_harmony_playback_prepare, | |
606 | .trigger = snd_harmony_playback_trigger, | |
607 | .pointer = snd_harmony_playback_pointer, | |
608 | }; | |
609 | ||
67b1020d | 610 | static struct snd_pcm_ops snd_harmony_capture_ops = { |
1da177e4 LT |
611 | .open = snd_harmony_capture_open, |
612 | .close = snd_harmony_capture_close, | |
613 | .ioctl = snd_pcm_lib_ioctl, | |
614 | .hw_params = snd_harmony_hw_params, | |
615 | .hw_free = snd_harmony_hw_free, | |
616 | .prepare = snd_harmony_capture_prepare, | |
617 | .trigger = snd_harmony_capture_trigger, | |
618 | .pointer = snd_harmony_capture_pointer, | |
619 | }; | |
620 | ||
621 | static int | |
67b1020d | 622 | snd_harmony_pcm_init(struct snd_harmony *h) |
1da177e4 | 623 | { |
67b1020d | 624 | struct snd_pcm *pcm; |
1da177e4 LT |
625 | int err; |
626 | ||
e8e0929d JL |
627 | if (snd_BUG_ON(!h)) |
628 | return -EINVAL; | |
629 | ||
1da177e4 LT |
630 | harmony_disable_interrupts(h); |
631 | ||
632 | err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); | |
633 | if (err < 0) | |
634 | return err; | |
635 | ||
636 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
637 | &snd_harmony_playback_ops); | |
638 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
639 | &snd_harmony_capture_ops); | |
640 | ||
641 | pcm->private_data = h; | |
642 | pcm->info_flags = 0; | |
643 | strcpy(pcm->name, "harmony"); | |
644 | h->pcm = pcm; | |
645 | ||
646 | h->psubs = NULL; | |
647 | h->csubs = NULL; | |
648 | ||
649 | /* initialize graveyard buffer */ | |
650 | h->dma.type = SNDRV_DMA_TYPE_DEV; | |
651 | h->dma.dev = &h->dev->dev; | |
652 | err = snd_dma_alloc_pages(h->dma.type, | |
653 | h->dma.dev, | |
654 | BUF_SIZE*GRAVEYARD_BUFS, | |
655 | &h->gdma); | |
656 | if (err < 0) { | |
657 | printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n"); | |
658 | return err; | |
659 | } | |
660 | ||
661 | /* initialize silence buffers */ | |
662 | err = snd_dma_alloc_pages(h->dma.type, | |
663 | h->dma.dev, | |
664 | BUF_SIZE*SILENCE_BUFS, | |
665 | &h->sdma); | |
666 | if (err < 0) { | |
667 | printk(KERN_ERR PFX "cannot allocate silence buffer!\n"); | |
668 | return err; | |
669 | } | |
670 | ||
671 | /* pre-allocate space for DMA */ | |
672 | err = snd_pcm_lib_preallocate_pages_for_all(pcm, h->dma.type, | |
673 | h->dma.dev, | |
674 | MAX_BUF_SIZE, | |
675 | MAX_BUF_SIZE); | |
676 | if (err < 0) { | |
677 | printk(KERN_ERR PFX "buffer allocation error: %d\n", err); | |
678 | return err; | |
679 | } | |
680 | ||
681 | h->st.format = snd_harmony_set_data_format(h, | |
682 | SNDRV_PCM_FORMAT_S16_BE, 1); | |
683 | ||
684 | return 0; | |
685 | } | |
686 | ||
687 | static void | |
67b1020d | 688 | snd_harmony_set_new_gain(struct snd_harmony *h) |
1da177e4 LT |
689 | { |
690 | harmony_wait_for_control(h); | |
691 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
692 | } | |
693 | ||
694 | static int | |
67b1020d TI |
695 | snd_harmony_mixercontrol_info(struct snd_kcontrol *kc, |
696 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
697 | { |
698 | int mask = (kc->private_value >> 16) & 0xff; | |
699 | int left_shift = (kc->private_value) & 0xff; | |
700 | int right_shift = (kc->private_value >> 8) & 0xff; | |
701 | ||
702 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : | |
703 | SNDRV_CTL_ELEM_TYPE_INTEGER; | |
704 | uinfo->count = left_shift == right_shift ? 1 : 2; | |
705 | uinfo->value.integer.min = 0; | |
706 | uinfo->value.integer.max = mask; | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
711 | static int | |
67b1020d TI |
712 | snd_harmony_volume_get(struct snd_kcontrol *kc, |
713 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 714 | { |
67b1020d | 715 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
716 | int shift_left = (kc->private_value) & 0xff; |
717 | int shift_right = (kc->private_value >> 8) & 0xff; | |
718 | int mask = (kc->private_value >> 16) & 0xff; | |
719 | int invert = (kc->private_value >> 24) & 0xff; | |
720 | int left, right; | |
1da177e4 | 721 | |
03f9ae25 | 722 | spin_lock_irq(&h->mixer_lock); |
1da177e4 LT |
723 | |
724 | left = (h->st.gain >> shift_left) & mask; | |
725 | right = (h->st.gain >> shift_right) & mask; | |
1da177e4 LT |
726 | if (invert) { |
727 | left = mask - left; | |
728 | right = mask - right; | |
729 | } | |
3a165680 | 730 | |
1da177e4 | 731 | ucontrol->value.integer.value[0] = left; |
3a165680 SB |
732 | if (shift_left != shift_right) |
733 | ucontrol->value.integer.value[1] = right; | |
1da177e4 | 734 | |
03f9ae25 | 735 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 LT |
736 | |
737 | return 0; | |
738 | } | |
739 | ||
740 | static int | |
67b1020d TI |
741 | snd_harmony_volume_put(struct snd_kcontrol *kc, |
742 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 743 | { |
67b1020d | 744 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
745 | int shift_left = (kc->private_value) & 0xff; |
746 | int shift_right = (kc->private_value >> 8) & 0xff; | |
747 | int mask = (kc->private_value >> 16) & 0xff; | |
748 | int invert = (kc->private_value >> 24) & 0xff; | |
749 | int left, right; | |
750 | int old_gain = h->st.gain; | |
1da177e4 | 751 | |
03f9ae25 | 752 | spin_lock_irq(&h->mixer_lock); |
3a165680 | 753 | |
1da177e4 | 754 | left = ucontrol->value.integer.value[0] & mask; |
3a165680 | 755 | if (invert) |
1da177e4 | 756 | left = mask - left; |
3a165680 SB |
757 | h->st.gain &= ~( (mask << shift_left ) ); |
758 | h->st.gain |= (left << shift_left); | |
759 | ||
760 | if (shift_left != shift_right) { | |
761 | right = ucontrol->value.integer.value[1] & mask; | |
762 | if (invert) | |
763 | right = mask - right; | |
764 | h->st.gain &= ~( (mask << shift_right) ); | |
765 | h->st.gain |= (right << shift_right); | |
1da177e4 | 766 | } |
3a165680 SB |
767 | |
768 | snd_harmony_set_new_gain(h); | |
769 | ||
03f9ae25 | 770 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
771 | |
772 | return h->st.gain != old_gain; | |
773 | } | |
774 | ||
775 | static int | |
67b1020d TI |
776 | snd_harmony_captureroute_info(struct snd_kcontrol *kc, |
777 | struct snd_ctl_elem_info *uinfo) | |
3a165680 SB |
778 | { |
779 | static char *texts[2] = { "Line", "Mic" }; | |
780 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; | |
781 | uinfo->count = 1; | |
782 | uinfo->value.enumerated.items = 2; | |
783 | if (uinfo->value.enumerated.item > 1) | |
784 | uinfo->value.enumerated.item = 1; | |
785 | strcpy(uinfo->value.enumerated.name, | |
786 | texts[uinfo->value.enumerated.item]); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | static int | |
67b1020d TI |
791 | snd_harmony_captureroute_get(struct snd_kcontrol *kc, |
792 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 793 | { |
67b1020d | 794 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 | 795 | int value; |
3a165680 | 796 | |
03f9ae25 | 797 | spin_lock_irq(&h->mixer_lock); |
3a165680 SB |
798 | |
799 | value = (h->st.gain >> HARMONY_GAIN_IS_SHIFT) & 1; | |
800 | ucontrol->value.enumerated.item[0] = value; | |
801 | ||
03f9ae25 | 802 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
803 | |
804 | return 0; | |
805 | } | |
806 | ||
807 | static int | |
67b1020d TI |
808 | snd_harmony_captureroute_put(struct snd_kcontrol *kc, |
809 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 810 | { |
67b1020d | 811 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 SB |
812 | int value; |
813 | int old_gain = h->st.gain; | |
1da177e4 | 814 | |
03f9ae25 | 815 | spin_lock_irq(&h->mixer_lock); |
1da177e4 | 816 | |
3a165680 SB |
817 | value = ucontrol->value.enumerated.item[0] & 1; |
818 | h->st.gain &= ~HARMONY_GAIN_IS_MASK; | |
819 | h->st.gain |= value << HARMONY_GAIN_IS_SHIFT; | |
820 | ||
1da177e4 LT |
821 | snd_harmony_set_new_gain(h); |
822 | ||
03f9ae25 | 823 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 | 824 | |
3a165680 | 825 | return h->st.gain != old_gain; |
1da177e4 LT |
826 | } |
827 | ||
67b1020d | 828 | #define HARMONY_CONTROLS ARRAY_SIZE(snd_harmony_controls) |
1da177e4 LT |
829 | |
830 | #define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \ | |
831 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
832 | .info = snd_harmony_mixercontrol_info, \ | |
833 | .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \ | |
834 | .private_value = ((left_shift) | ((right_shift) << 8) | \ | |
835 | ((mask) << 16) | ((invert) << 24)) } | |
836 | ||
67b1020d | 837 | static struct snd_kcontrol_new snd_harmony_controls[] = { |
3a165680 | 838 | HARMONY_VOLUME("Master Playback Volume", HARMONY_GAIN_LO_SHIFT, |
1da177e4 LT |
839 | HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1), |
840 | HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT, | |
841 | HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0), | |
3a165680 SB |
842 | HARMONY_VOLUME("Monitor Volume", HARMONY_GAIN_MA_SHIFT, |
843 | HARMONY_GAIN_MA_SHIFT, HARMONY_GAIN_MA, 1), | |
844 | { | |
845 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
846 | .name = "Input Route", | |
847 | .info = snd_harmony_captureroute_info, | |
848 | .get = snd_harmony_captureroute_get, | |
849 | .put = snd_harmony_captureroute_put | |
850 | }, | |
851 | HARMONY_VOLUME("Internal Speaker Switch", HARMONY_GAIN_SE_SHIFT, | |
852 | HARMONY_GAIN_SE_SHIFT, 1, 0), | |
853 | HARMONY_VOLUME("Line-Out Switch", HARMONY_GAIN_LE_SHIFT, | |
854 | HARMONY_GAIN_LE_SHIFT, 1, 0), | |
855 | HARMONY_VOLUME("Headphones Switch", HARMONY_GAIN_HE_SHIFT, | |
856 | HARMONY_GAIN_HE_SHIFT, 1, 0), | |
1da177e4 LT |
857 | }; |
858 | ||
05bcf503 | 859 | static void |
67b1020d | 860 | snd_harmony_mixer_reset(struct snd_harmony *h) |
1da177e4 LT |
861 | { |
862 | harmony_mute(h); | |
863 | harmony_reset(h); | |
864 | h->st.gain = HARMONY_GAIN_DEFAULT; | |
865 | harmony_unmute(h); | |
866 | } | |
867 | ||
05bcf503 | 868 | static int |
67b1020d | 869 | snd_harmony_mixer_init(struct snd_harmony *h) |
1da177e4 | 870 | { |
e8e0929d | 871 | struct snd_card *card; |
1da177e4 LT |
872 | int idx, err; |
873 | ||
5e246b85 | 874 | if (snd_BUG_ON(!h)) |
c86a456b | 875 | return -EINVAL; |
e8e0929d | 876 | card = h->card; |
1da177e4 LT |
877 | strcpy(card->mixername, "Harmony Gain control interface"); |
878 | ||
879 | for (idx = 0; idx < HARMONY_CONTROLS; idx++) { | |
880 | err = snd_ctl_add(card, | |
881 | snd_ctl_new1(&snd_harmony_controls[idx], h)); | |
882 | if (err < 0) | |
883 | return err; | |
884 | } | |
885 | ||
886 | snd_harmony_mixer_reset(h); | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
891 | static int | |
67b1020d | 892 | snd_harmony_free(struct snd_harmony *h) |
1da177e4 LT |
893 | { |
894 | if (h->gdma.addr) | |
895 | snd_dma_free_pages(&h->gdma); | |
896 | if (h->sdma.addr) | |
897 | snd_dma_free_pages(&h->sdma); | |
898 | ||
899 | if (h->irq >= 0) | |
900 | free_irq(h->irq, h); | |
901 | ||
902 | if (h->iobase) | |
903 | iounmap(h->iobase); | |
904 | ||
1da177e4 LT |
905 | kfree(h); |
906 | return 0; | |
907 | } | |
908 | ||
909 | static int | |
67b1020d | 910 | snd_harmony_dev_free(struct snd_device *dev) |
1da177e4 | 911 | { |
67b1020d | 912 | struct snd_harmony *h = dev->device_data; |
1da177e4 LT |
913 | return snd_harmony_free(h); |
914 | } | |
915 | ||
05bcf503 | 916 | static int |
67b1020d | 917 | snd_harmony_create(struct snd_card *card, |
1da177e4 | 918 | struct parisc_device *padev, |
67b1020d | 919 | struct snd_harmony **rchip) |
1da177e4 LT |
920 | { |
921 | int err; | |
67b1020d TI |
922 | struct snd_harmony *h; |
923 | static struct snd_device_ops ops = { | |
1da177e4 LT |
924 | .dev_free = snd_harmony_dev_free, |
925 | }; | |
926 | ||
927 | *rchip = NULL; | |
928 | ||
03f9ae25 | 929 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
1da177e4 LT |
930 | if (h == NULL) |
931 | return -ENOMEM; | |
932 | ||
53f01bba | 933 | h->hpa = padev->hpa.start; |
1da177e4 LT |
934 | h->card = card; |
935 | h->dev = padev; | |
03f9ae25 | 936 | h->irq = -1; |
53f01bba | 937 | h->iobase = ioremap_nocache(padev->hpa.start, HARMONY_SIZE); |
1da177e4 LT |
938 | if (h->iobase == NULL) { |
939 | printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n", | |
b04b4f78 | 940 | (unsigned long)padev->hpa.start); |
1da177e4 LT |
941 | err = -EBUSY; |
942 | goto free_and_ret; | |
943 | } | |
944 | ||
03f9ae25 | 945 | err = request_irq(padev->irq, snd_harmony_interrupt, 0, |
1da177e4 LT |
946 | "harmony", h); |
947 | if (err) { | |
948 | printk(KERN_ERR PFX "could not obtain interrupt %d", | |
03f9ae25 | 949 | padev->irq); |
1da177e4 LT |
950 | goto free_and_ret; |
951 | } | |
03f9ae25 | 952 | h->irq = padev->irq; |
1da177e4 LT |
953 | |
954 | spin_lock_init(&h->mixer_lock); | |
955 | spin_lock_init(&h->lock); | |
956 | ||
957 | if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, | |
958 | h, &ops)) < 0) { | |
959 | goto free_and_ret; | |
960 | } | |
961 | ||
962 | *rchip = h; | |
963 | ||
964 | return 0; | |
965 | ||
966 | free_and_ret: | |
967 | snd_harmony_free(h); | |
968 | return err; | |
969 | } | |
970 | ||
05bcf503 | 971 | static int |
1da177e4 LT |
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 | 977 | |
5f32c314 | 978 | err = snd_card_new(&padev->dev, index, id, THIS_MODULE, 0, &card); |
bd7dd77c TI |
979 | if (err < 0) |
980 | return err; | |
1da177e4 LT |
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 | ||
05bcf503 | 1011 | static int |
1da177e4 LT |
1012 | snd_harmony_remove(struct parisc_device *padev) |
1013 | { | |
03f9ae25 | 1014 | snd_card_free(parisc_get_drvdata(padev)); |
1da177e4 LT |
1015 | return 0; |
1016 | } | |
1017 | ||
1018 | static struct parisc_driver snd_harmony_driver = { | |
1019 | .name = "harmony", | |
1020 | .id_table = snd_harmony_devtable, | |
1021 | .probe = snd_harmony_probe, | |
05bcf503 | 1022 | .remove = snd_harmony_remove, |
1da177e4 LT |
1023 | }; |
1024 | ||
1025 | static int __init | |
1026 | alsa_harmony_init(void) | |
1027 | { | |
03f9ae25 | 1028 | return register_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1029 | } |
1030 | ||
1031 | static void __exit | |
1032 | alsa_harmony_fini(void) | |
1033 | { | |
67b1020d | 1034 | unregister_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
1035 | } |
1036 | ||
1037 | MODULE_LICENSE("GPL"); | |
1038 | MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>"); | |
1039 | MODULE_DESCRIPTION("Harmony sound driver"); | |
1040 | ||
1041 | module_init(alsa_harmony_init); | |
1042 | module_exit(alsa_harmony_fini); |