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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 | ||
c2992b19 | 566 | static const struct snd_pcm_ops snd_harmony_playback_ops = { |
1da177e4 LT |
567 | .open = snd_harmony_playback_open, |
568 | .close = snd_harmony_playback_close, | |
1da177e4 LT |
569 | .prepare = snd_harmony_playback_prepare, |
570 | .trigger = snd_harmony_playback_trigger, | |
571 | .pointer = snd_harmony_playback_pointer, | |
572 | }; | |
573 | ||
c2992b19 | 574 | static const struct snd_pcm_ops snd_harmony_capture_ops = { |
1da177e4 LT |
575 | .open = snd_harmony_capture_open, |
576 | .close = snd_harmony_capture_close, | |
1da177e4 LT |
577 | .prepare = snd_harmony_capture_prepare, |
578 | .trigger = snd_harmony_capture_trigger, | |
579 | .pointer = snd_harmony_capture_pointer, | |
580 | }; | |
581 | ||
582 | static int | |
67b1020d | 583 | snd_harmony_pcm_init(struct snd_harmony *h) |
1da177e4 | 584 | { |
67b1020d | 585 | struct snd_pcm *pcm; |
1da177e4 LT |
586 | int err; |
587 | ||
e8e0929d JL |
588 | if (snd_BUG_ON(!h)) |
589 | return -EINVAL; | |
590 | ||
1da177e4 LT |
591 | harmony_disable_interrupts(h); |
592 | ||
593 | err = snd_pcm_new(h->card, "harmony", 0, 1, 1, &pcm); | |
594 | if (err < 0) | |
595 | return err; | |
596 | ||
597 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
598 | &snd_harmony_playback_ops); | |
599 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
600 | &snd_harmony_capture_ops); | |
601 | ||
602 | pcm->private_data = h; | |
603 | pcm->info_flags = 0; | |
604 | strcpy(pcm->name, "harmony"); | |
605 | h->pcm = pcm; | |
606 | ||
607 | h->psubs = NULL; | |
608 | h->csubs = NULL; | |
609 | ||
610 | /* initialize graveyard buffer */ | |
611 | h->dma.type = SNDRV_DMA_TYPE_DEV; | |
612 | h->dma.dev = &h->dev->dev; | |
613 | err = snd_dma_alloc_pages(h->dma.type, | |
614 | h->dma.dev, | |
615 | BUF_SIZE*GRAVEYARD_BUFS, | |
616 | &h->gdma); | |
617 | if (err < 0) { | |
618 | printk(KERN_ERR PFX "cannot allocate graveyard buffer!\n"); | |
619 | return err; | |
620 | } | |
621 | ||
622 | /* initialize silence buffers */ | |
623 | err = snd_dma_alloc_pages(h->dma.type, | |
624 | h->dma.dev, | |
625 | BUF_SIZE*SILENCE_BUFS, | |
626 | &h->sdma); | |
627 | if (err < 0) { | |
628 | printk(KERN_ERR PFX "cannot allocate silence buffer!\n"); | |
629 | return err; | |
630 | } | |
631 | ||
632 | /* pre-allocate space for DMA */ | |
005f3e67 TI |
633 | snd_pcm_set_managed_buffer_all(pcm, h->dma.type, h->dma.dev, |
634 | MAX_BUF_SIZE, MAX_BUF_SIZE); | |
1da177e4 LT |
635 | |
636 | h->st.format = snd_harmony_set_data_format(h, | |
637 | SNDRV_PCM_FORMAT_S16_BE, 1); | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
642 | static void | |
67b1020d | 643 | snd_harmony_set_new_gain(struct snd_harmony *h) |
1da177e4 LT |
644 | { |
645 | harmony_wait_for_control(h); | |
646 | harmony_write(h, HARMONY_GAINCTL, h->st.gain); | |
647 | } | |
648 | ||
649 | static int | |
67b1020d TI |
650 | snd_harmony_mixercontrol_info(struct snd_kcontrol *kc, |
651 | struct snd_ctl_elem_info *uinfo) | |
1da177e4 LT |
652 | { |
653 | int mask = (kc->private_value >> 16) & 0xff; | |
654 | int left_shift = (kc->private_value) & 0xff; | |
655 | int right_shift = (kc->private_value >> 8) & 0xff; | |
656 | ||
657 | uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : | |
658 | SNDRV_CTL_ELEM_TYPE_INTEGER; | |
659 | uinfo->count = left_shift == right_shift ? 1 : 2; | |
660 | uinfo->value.integer.min = 0; | |
661 | uinfo->value.integer.max = mask; | |
662 | ||
663 | return 0; | |
664 | } | |
665 | ||
666 | static int | |
67b1020d TI |
667 | snd_harmony_volume_get(struct snd_kcontrol *kc, |
668 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 669 | { |
67b1020d | 670 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
671 | int shift_left = (kc->private_value) & 0xff; |
672 | int shift_right = (kc->private_value >> 8) & 0xff; | |
673 | int mask = (kc->private_value >> 16) & 0xff; | |
674 | int invert = (kc->private_value >> 24) & 0xff; | |
675 | int left, right; | |
1da177e4 | 676 | |
03f9ae25 | 677 | spin_lock_irq(&h->mixer_lock); |
1da177e4 LT |
678 | |
679 | left = (h->st.gain >> shift_left) & mask; | |
680 | right = (h->st.gain >> shift_right) & mask; | |
1da177e4 LT |
681 | if (invert) { |
682 | left = mask - left; | |
683 | right = mask - right; | |
684 | } | |
3a165680 | 685 | |
1da177e4 | 686 | ucontrol->value.integer.value[0] = left; |
3a165680 SB |
687 | if (shift_left != shift_right) |
688 | ucontrol->value.integer.value[1] = right; | |
1da177e4 | 689 | |
03f9ae25 | 690 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 LT |
691 | |
692 | return 0; | |
693 | } | |
694 | ||
695 | static int | |
67b1020d TI |
696 | snd_harmony_volume_put(struct snd_kcontrol *kc, |
697 | struct snd_ctl_elem_value *ucontrol) | |
1da177e4 | 698 | { |
67b1020d | 699 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
1da177e4 LT |
700 | int shift_left = (kc->private_value) & 0xff; |
701 | int shift_right = (kc->private_value >> 8) & 0xff; | |
702 | int mask = (kc->private_value >> 16) & 0xff; | |
703 | int invert = (kc->private_value >> 24) & 0xff; | |
704 | int left, right; | |
705 | int old_gain = h->st.gain; | |
1da177e4 | 706 | |
03f9ae25 | 707 | spin_lock_irq(&h->mixer_lock); |
3a165680 | 708 | |
1da177e4 | 709 | left = ucontrol->value.integer.value[0] & mask; |
3a165680 | 710 | if (invert) |
1da177e4 | 711 | left = mask - left; |
3a165680 SB |
712 | h->st.gain &= ~( (mask << shift_left ) ); |
713 | h->st.gain |= (left << shift_left); | |
714 | ||
715 | if (shift_left != shift_right) { | |
716 | right = ucontrol->value.integer.value[1] & mask; | |
717 | if (invert) | |
718 | right = mask - right; | |
719 | h->st.gain &= ~( (mask << shift_right) ); | |
720 | h->st.gain |= (right << shift_right); | |
1da177e4 | 721 | } |
3a165680 SB |
722 | |
723 | snd_harmony_set_new_gain(h); | |
724 | ||
03f9ae25 | 725 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
726 | |
727 | return h->st.gain != old_gain; | |
728 | } | |
729 | ||
730 | static int | |
67b1020d TI |
731 | snd_harmony_captureroute_info(struct snd_kcontrol *kc, |
732 | struct snd_ctl_elem_info *uinfo) | |
3a165680 | 733 | { |
3c6a73cc TI |
734 | static const char * const texts[2] = { "Line", "Mic" }; |
735 | ||
736 | return snd_ctl_enum_info(uinfo, 1, 2, texts); | |
3a165680 SB |
737 | } |
738 | ||
739 | static int | |
67b1020d TI |
740 | snd_harmony_captureroute_get(struct snd_kcontrol *kc, |
741 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 742 | { |
67b1020d | 743 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 | 744 | int value; |
3a165680 | 745 | |
03f9ae25 | 746 | spin_lock_irq(&h->mixer_lock); |
3a165680 SB |
747 | |
748 | value = (h->st.gain >> HARMONY_GAIN_IS_SHIFT) & 1; | |
749 | ucontrol->value.enumerated.item[0] = value; | |
750 | ||
03f9ae25 | 751 | spin_unlock_irq(&h->mixer_lock); |
3a165680 SB |
752 | |
753 | return 0; | |
754 | } | |
755 | ||
756 | static int | |
67b1020d TI |
757 | snd_harmony_captureroute_put(struct snd_kcontrol *kc, |
758 | struct snd_ctl_elem_value *ucontrol) | |
3a165680 | 759 | { |
67b1020d | 760 | struct snd_harmony *h = snd_kcontrol_chip(kc); |
3a165680 SB |
761 | int value; |
762 | int old_gain = h->st.gain; | |
1da177e4 | 763 | |
03f9ae25 | 764 | spin_lock_irq(&h->mixer_lock); |
1da177e4 | 765 | |
3a165680 SB |
766 | value = ucontrol->value.enumerated.item[0] & 1; |
767 | h->st.gain &= ~HARMONY_GAIN_IS_MASK; | |
768 | h->st.gain |= value << HARMONY_GAIN_IS_SHIFT; | |
769 | ||
1da177e4 LT |
770 | snd_harmony_set_new_gain(h); |
771 | ||
03f9ae25 | 772 | spin_unlock_irq(&h->mixer_lock); |
1da177e4 | 773 | |
3a165680 | 774 | return h->st.gain != old_gain; |
1da177e4 LT |
775 | } |
776 | ||
67b1020d | 777 | #define HARMONY_CONTROLS ARRAY_SIZE(snd_harmony_controls) |
1da177e4 LT |
778 | |
779 | #define HARMONY_VOLUME(xname, left_shift, right_shift, mask, invert) \ | |
780 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ | |
781 | .info = snd_harmony_mixercontrol_info, \ | |
782 | .get = snd_harmony_volume_get, .put = snd_harmony_volume_put, \ | |
783 | .private_value = ((left_shift) | ((right_shift) << 8) | \ | |
784 | ((mask) << 16) | ((invert) << 24)) } | |
785 | ||
46708e62 | 786 | static const struct snd_kcontrol_new snd_harmony_controls[] = { |
3a165680 | 787 | HARMONY_VOLUME("Master Playback Volume", HARMONY_GAIN_LO_SHIFT, |
1da177e4 LT |
788 | HARMONY_GAIN_RO_SHIFT, HARMONY_GAIN_OUT, 1), |
789 | HARMONY_VOLUME("Capture Volume", HARMONY_GAIN_LI_SHIFT, | |
790 | HARMONY_GAIN_RI_SHIFT, HARMONY_GAIN_IN, 0), | |
3a165680 SB |
791 | HARMONY_VOLUME("Monitor Volume", HARMONY_GAIN_MA_SHIFT, |
792 | HARMONY_GAIN_MA_SHIFT, HARMONY_GAIN_MA, 1), | |
793 | { | |
794 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
795 | .name = "Input Route", | |
796 | .info = snd_harmony_captureroute_info, | |
797 | .get = snd_harmony_captureroute_get, | |
798 | .put = snd_harmony_captureroute_put | |
799 | }, | |
800 | HARMONY_VOLUME("Internal Speaker Switch", HARMONY_GAIN_SE_SHIFT, | |
801 | HARMONY_GAIN_SE_SHIFT, 1, 0), | |
802 | HARMONY_VOLUME("Line-Out Switch", HARMONY_GAIN_LE_SHIFT, | |
803 | HARMONY_GAIN_LE_SHIFT, 1, 0), | |
804 | HARMONY_VOLUME("Headphones Switch", HARMONY_GAIN_HE_SHIFT, | |
805 | HARMONY_GAIN_HE_SHIFT, 1, 0), | |
1da177e4 LT |
806 | }; |
807 | ||
05bcf503 | 808 | static void |
67b1020d | 809 | snd_harmony_mixer_reset(struct snd_harmony *h) |
1da177e4 LT |
810 | { |
811 | harmony_mute(h); | |
812 | harmony_reset(h); | |
813 | h->st.gain = HARMONY_GAIN_DEFAULT; | |
814 | harmony_unmute(h); | |
815 | } | |
816 | ||
05bcf503 | 817 | static int |
67b1020d | 818 | snd_harmony_mixer_init(struct snd_harmony *h) |
1da177e4 | 819 | { |
e8e0929d | 820 | struct snd_card *card; |
1da177e4 LT |
821 | int idx, err; |
822 | ||
5e246b85 | 823 | if (snd_BUG_ON(!h)) |
c86a456b | 824 | return -EINVAL; |
e8e0929d | 825 | card = h->card; |
1da177e4 LT |
826 | strcpy(card->mixername, "Harmony Gain control interface"); |
827 | ||
828 | for (idx = 0; idx < HARMONY_CONTROLS; idx++) { | |
829 | err = snd_ctl_add(card, | |
830 | snd_ctl_new1(&snd_harmony_controls[idx], h)); | |
831 | if (err < 0) | |
832 | return err; | |
833 | } | |
834 | ||
835 | snd_harmony_mixer_reset(h); | |
836 | ||
837 | return 0; | |
838 | } | |
839 | ||
840 | static int | |
67b1020d | 841 | snd_harmony_free(struct snd_harmony *h) |
1da177e4 LT |
842 | { |
843 | if (h->gdma.addr) | |
844 | snd_dma_free_pages(&h->gdma); | |
845 | if (h->sdma.addr) | |
846 | snd_dma_free_pages(&h->sdma); | |
847 | ||
848 | if (h->irq >= 0) | |
849 | free_irq(h->irq, h); | |
850 | ||
ff6defa6 | 851 | iounmap(h->iobase); |
1da177e4 LT |
852 | kfree(h); |
853 | return 0; | |
854 | } | |
855 | ||
856 | static int | |
67b1020d | 857 | snd_harmony_dev_free(struct snd_device *dev) |
1da177e4 | 858 | { |
67b1020d | 859 | struct snd_harmony *h = dev->device_data; |
1da177e4 LT |
860 | return snd_harmony_free(h); |
861 | } | |
862 | ||
05bcf503 | 863 | static int |
67b1020d | 864 | snd_harmony_create(struct snd_card *card, |
1da177e4 | 865 | struct parisc_device *padev, |
67b1020d | 866 | struct snd_harmony **rchip) |
1da177e4 LT |
867 | { |
868 | int err; | |
67b1020d | 869 | struct snd_harmony *h; |
65341589 | 870 | static const struct snd_device_ops ops = { |
1da177e4 LT |
871 | .dev_free = snd_harmony_dev_free, |
872 | }; | |
873 | ||
874 | *rchip = NULL; | |
875 | ||
03f9ae25 | 876 | h = kzalloc(sizeof(*h), GFP_KERNEL); |
1da177e4 LT |
877 | if (h == NULL) |
878 | return -ENOMEM; | |
879 | ||
53f01bba | 880 | h->hpa = padev->hpa.start; |
1da177e4 LT |
881 | h->card = card; |
882 | h->dev = padev; | |
03f9ae25 | 883 | h->irq = -1; |
4bdc0d67 | 884 | h->iobase = ioremap(padev->hpa.start, HARMONY_SIZE); |
1da177e4 LT |
885 | if (h->iobase == NULL) { |
886 | printk(KERN_ERR PFX "unable to remap hpa 0x%lx\n", | |
b04b4f78 | 887 | (unsigned long)padev->hpa.start); |
1da177e4 LT |
888 | err = -EBUSY; |
889 | goto free_and_ret; | |
890 | } | |
891 | ||
03f9ae25 | 892 | err = request_irq(padev->irq, snd_harmony_interrupt, 0, |
1da177e4 LT |
893 | "harmony", h); |
894 | if (err) { | |
895 | printk(KERN_ERR PFX "could not obtain interrupt %d", | |
03f9ae25 | 896 | padev->irq); |
1da177e4 LT |
897 | goto free_and_ret; |
898 | } | |
03f9ae25 | 899 | h->irq = padev->irq; |
1da177e4 LT |
900 | |
901 | spin_lock_init(&h->mixer_lock); | |
902 | spin_lock_init(&h->lock); | |
903 | ||
6ea9a2b8 TI |
904 | err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, h, &ops); |
905 | if (err < 0) | |
906 | goto free_and_ret; | |
1da177e4 LT |
907 | |
908 | *rchip = h; | |
909 | ||
910 | return 0; | |
911 | ||
912 | free_and_ret: | |
913 | snd_harmony_free(h); | |
914 | return err; | |
915 | } | |
916 | ||
c8dbaa22 | 917 | static int __init |
1da177e4 LT |
918 | snd_harmony_probe(struct parisc_device *padev) |
919 | { | |
920 | int err; | |
67b1020d TI |
921 | struct snd_card *card; |
922 | struct snd_harmony *h; | |
1da177e4 | 923 | |
5f32c314 | 924 | err = snd_card_new(&padev->dev, index, id, THIS_MODULE, 0, &card); |
bd7dd77c TI |
925 | if (err < 0) |
926 | return err; | |
1da177e4 LT |
927 | |
928 | err = snd_harmony_create(card, padev, &h); | |
03f9ae25 | 929 | if (err < 0) |
1da177e4 | 930 | goto free_and_ret; |
1da177e4 LT |
931 | |
932 | err = snd_harmony_pcm_init(h); | |
03f9ae25 | 933 | if (err < 0) |
1da177e4 | 934 | goto free_and_ret; |
1da177e4 LT |
935 | |
936 | err = snd_harmony_mixer_init(h); | |
03f9ae25 | 937 | if (err < 0) |
1da177e4 | 938 | goto free_and_ret; |
1da177e4 LT |
939 | |
940 | strcpy(card->driver, "harmony"); | |
941 | strcpy(card->shortname, "Harmony"); | |
942 | sprintf(card->longname, "%s at 0x%lx, irq %i", | |
943 | card->shortname, h->hpa, h->irq); | |
944 | ||
945 | err = snd_card_register(card); | |
03f9ae25 | 946 | if (err < 0) |
1da177e4 | 947 | goto free_and_ret; |
1da177e4 | 948 | |
03f9ae25 | 949 | parisc_set_drvdata(padev, card); |
1da177e4 LT |
950 | return 0; |
951 | ||
952 | free_and_ret: | |
953 | snd_card_free(card); | |
954 | return err; | |
955 | } | |
956 | ||
87875c10 | 957 | static void __exit |
1da177e4 LT |
958 | snd_harmony_remove(struct parisc_device *padev) |
959 | { | |
03f9ae25 | 960 | snd_card_free(parisc_get_drvdata(padev)); |
1da177e4 LT |
961 | } |
962 | ||
c8dbaa22 | 963 | static struct parisc_driver snd_harmony_driver __refdata = { |
1da177e4 LT |
964 | .name = "harmony", |
965 | .id_table = snd_harmony_devtable, | |
966 | .probe = snd_harmony_probe, | |
c8dbaa22 | 967 | .remove = __exit_p(snd_harmony_remove), |
1da177e4 LT |
968 | }; |
969 | ||
970 | static int __init | |
971 | alsa_harmony_init(void) | |
972 | { | |
03f9ae25 | 973 | return register_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
974 | } |
975 | ||
976 | static void __exit | |
977 | alsa_harmony_fini(void) | |
978 | { | |
67b1020d | 979 | unregister_parisc_driver(&snd_harmony_driver); |
1da177e4 LT |
980 | } |
981 | ||
982 | MODULE_LICENSE("GPL"); | |
983 | MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>"); | |
984 | MODULE_DESCRIPTION("Harmony sound driver"); | |
985 | ||
986 | module_init(alsa_harmony_init); | |
987 | module_exit(alsa_harmony_fini); |