]>
Commit | Line | Data |
---|---|---|
06f6246e | 1 | diff -urN linux/drivers/bluetooth/hci_usb.c linux.new/drivers/bluetooth/hci_usb.c |
2 | --- linux/drivers/bluetooth/hci_usb.c 2004-08-23 18:46:43.000000000 +0200 | |
3 | +++ linux.new/drivers/bluetooth/hci_usb.c 2004-08-23 19:22:37.000000000 +0200 | |
4 | @@ -887,8 +887,12 @@ | |
5 | ||
6 | switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { | |
7 | case USB_ENDPOINT_XFER_ISOC: | |
8 | - if (ep->desc.wMaxPacketSize < size || | |
9 | - uif->desc.bAlternateSetting > 2) | |
10 | + /* Use only the 9 byte | |
11 | + "One voice channel with 8 bit encoding" | |
12 | + endpoint until there is support for changing | |
13 | + the endpoint dynamically. See | |
14 | + Bluetooth 1.1 Part H:2, section 2.1 */ | |
15 | + if (ep->desc.wMaxPacketSize != 9) | |
16 | break; | |
17 | size = ep->desc.wMaxPacketSize; | |
18 | ||
19 | diff -urN linux/include/sound/asound.h linux.new/include/sound/asound.h | |
20 | --- linux/include/sound/asound.h 2004-08-23 18:46:43.000000000 +0200 | |
21 | +++ linux.new/include/sound/asound.h 2004-08-23 19:22:37.000000000 +0200 | |
22 | @@ -108,9 +108,10 @@ | |
23 | SNDRV_HWDEP_IFACE_MIXART, /* Digigram miXart cards */ | |
24 | SNDRV_HWDEP_IFACE_USX2Y, /* Tascam US122, US224 & US428 usb */ | |
25 | SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */ | |
26 | + SNDRV_HWDEP_IFACE_BT_SCO, /* Bluetooth SCO Headset */ | |
27 | ||
28 | /* Don't forget to change the following: */ | |
29 | - SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, | |
30 | + SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_BT_SCO, | |
31 | }; | |
32 | ||
33 | struct sndrv_hwdep_info { | |
34 | @@ -135,7 +136,7 @@ | |
35 | struct sndrv_hwdep_dsp_image { | |
36 | unsigned int index; /* W: DSP index */ | |
37 | unsigned char name[64]; /* W: ID (e.g. file name) */ | |
38 | - unsigned char __user *image; /* W: binary image */ | |
39 | + unsigned char __user *image;/* W: binary image */ | |
40 | size_t length; /* W: size of image in bytes */ | |
41 | unsigned long driver_data; /* W: driver-specific data */ | |
42 | }; | |
43 | diff -urN linux/include/sound/btsco.h linux.new/include/sound/btsco.h | |
44 | --- linux/include/sound/btsco.h 1970-01-01 01:00:00.000000000 +0100 | |
45 | +++ linux.new/include/sound/btsco.h 2004-07-19 19:56:20.000000000 +0200 | |
46 | @@ -0,0 +1,5 @@ | |
47 | +#ifndef __SOUND_BT_SCO_H | |
48 | +#define __SOUND_BT_SCO_H | |
49 | + | |
50 | +#define SNDRV_BT_SCO_IOCTL_SET_SCO_SOCKET _IOW ('H', 0x10, int) | |
51 | +#endif /* __SOUND_BT_SCO_H */ | |
52 | diff -urN linux/include/sound/sndmagic.h linux.new/include/sound/sndmagic.h | |
53 | --- linux/include/sound/sndmagic.h 2004-08-23 18:46:43.000000000 +0200 | |
54 | +++ linux.new/include/sound/sndmagic.h 2004-08-23 19:22:37.000000000 +0200 | |
55 | @@ -201,6 +201,8 @@ | |
56 | #define snd_card_harmony_t_magic 0xa15a4300 | |
57 | #define bt87x_t_magic 0xa15a4400 | |
58 | #define pdacf_t_magic 0xa15a4500 | |
59 | +#define snd_card_bt_sco_t_magic 0xa15a4600 | |
60 | +#define snd_card_bt_sco_pcm_t_magic 0xa15a4601 | |
61 | #define vortex_t_magic 0xa15a4601 | |
62 | #define atiixp_t_magic 0xa15a4701 | |
63 | #define amd7930_t_magic 0xa15a4801 | |
64 | diff -urN linux/sound/bluetooth/btsco.c linux.new/sound/bluetooth/btsco.c | |
65 | --- linux/sound/bluetooth/btsco.c 1970-01-01 01:00:00.000000000 +0100 | |
66 | +++ linux.new/sound/bluetooth/btsco.c 2004-07-19 19:56:20.000000000 +0200 | |
67 | @@ -0,0 +1,1023 @@ | |
68 | +/* | |
69 | + * Bluetooth SCO soundcard | |
70 | + * Copyright (c) 2003, 2004 by Jonathan Paisley <jp@dcs.gla.ac.uk> | |
71 | + * | |
72 | + * Based on dummy.c which is | |
73 | + * Copyright (c) by Jaroslav Kysela <perex@suse.cz> | |
74 | + * | |
75 | + * This program is free software; you can redistribute it and/or modify | |
76 | + * it under the terms of the GNU General Public License as published by | |
77 | + * the Free Software Foundation; either version 2 of the License, or | |
78 | + * (at your option) any later version. | |
79 | + * | |
80 | + * This program is distributed in the hope that it will be useful, | |
81 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
82 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
83 | + * GNU General Public License for more details. | |
84 | + * | |
85 | + * You should have received a copy of the GNU General Public License | |
86 | + * along with this program; if not, write to the Free Software | |
87 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
88 | + * | |
89 | + */ | |
90 | + | |
91 | +#define chip_t snd_card_bt_sco_t | |
92 | + | |
93 | +#include <sound/driver.h> | |
94 | +#include <linux/version.h> | |
95 | +#include <linux/init.h> | |
96 | +#include <linux/jiffies.h> | |
97 | +#include <linux/slab.h> | |
98 | +#include <linux/time.h> | |
99 | +#include <linux/wait.h> | |
100 | +#include <linux/socket.h> | |
101 | +#include <linux/file.h> | |
102 | +#include <linux/completion.h> | |
103 | +#include <linux/smp_lock.h> | |
104 | +#include <net/sock.h> | |
105 | +#include <net/bluetooth/bluetooth.h> | |
106 | + | |
107 | +#include <sound/btsco.h> | |
108 | +#include <sound/core.h> | |
109 | +#include <sound/control.h> | |
110 | +#include <sound/pcm.h> | |
111 | +#include <sound/rawmidi.h> | |
112 | +#include <sound/hwdep.h> | |
113 | +#define SNDRV_GET_ID | |
114 | +#include <sound/initval.h> | |
115 | + | |
116 | +MODULE_AUTHOR("Jonathan Paisley <jp@dcs.gla.ac.uk>"); | |
117 | +MODULE_DESCRIPTION("Bluetooth SCO Headset Soundcard"); | |
118 | +MODULE_LICENSE("GPL"); | |
119 | +MODULE_CLASSES("{sound}"); | |
120 | +MODULE_DEVICES("{{ALSA,Bluetooth SCO Soundcard}}"); | |
121 | + | |
122 | +static char *mod_revision = "$Revision$"; | |
123 | + | |
124 | +#undef dprintk | |
125 | +#if 1 | |
126 | +#define dprintk(fmt...) printk(KERN_INFO "snd-bt-sco: " fmt) | |
127 | +#else | |
128 | +#define dprintk(fmt...) do {} while(0) | |
129 | +#endif | |
130 | + | |
131 | +#define MAX_BUFFER_SIZE (32*1024) | |
132 | + | |
133 | +#define MIXER_ADDR_MASTER 0 | |
134 | +#define MIXER_ADDR_MIC 1 | |
135 | +#define MIXER_ADDR_LAST 1 | |
136 | + | |
137 | +#define MIXER_MASK_MASTER 1 | |
138 | +#define MIXER_MASK_MIC 2 | |
139 | + | |
140 | +#define MIXER_MIN_VOLUME 1 | |
141 | +#define MIXER_MAX_VOLUME 15 | |
142 | + | |
143 | +struct snd_card_bt_sco_pcm; | |
144 | + | |
145 | +typedef struct snd_card_bt_sco { | |
146 | + snd_card_t *card; | |
147 | + spinlock_t mixer_lock; | |
148 | + int mixer_volume[MIXER_ADDR_LAST + 1]; | |
149 | + snd_kcontrol_t *mixer_controls[MIXER_ADDR_LAST + 2]; /* also loopback */ | |
150 | + volatile int loopback; | |
151 | + | |
152 | + spinlock_t mixer_changed_lock; | |
153 | + volatile int mixer_changed; | |
154 | + wait_queue_head_t hwdep_wait; | |
155 | + | |
156 | + int thread_pid; | |
157 | + struct completion thread_done; | |
158 | + | |
159 | + volatile int thread_exit; | |
160 | + struct semaphore thread_sem; | |
161 | + | |
162 | + volatile struct socket *sco_sock; | |
163 | + struct semaphore sock_sem; | |
164 | + wait_queue_head_t wait; | |
165 | + | |
166 | + struct semaphore playback_sem; | |
167 | + struct snd_card_bt_sco_pcm *playback; | |
168 | + struct semaphore capture_sem; | |
169 | + struct snd_card_bt_sco_pcm *capture; | |
170 | +} snd_card_bt_sco_t; | |
171 | + | |
172 | +typedef struct snd_card_bt_sco_pcm { | |
173 | + snd_card_bt_sco_t *bt_sco; | |
174 | + spinlock_t lock; | |
175 | + unsigned int pcm_size; | |
176 | + unsigned int pcm_count; | |
177 | + unsigned int pcm_bps; /* bytes per second */ | |
178 | + unsigned int pcm_irq_pos; /* IRQ position */ | |
179 | + unsigned int pcm_buf_pos; /* position in buffer */ | |
180 | + snd_pcm_substream_t *substream; | |
181 | +} snd_card_bt_sco_pcm_t; | |
182 | + | |
183 | +static snd_card_t *snd_bt_sco_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; | |
184 | + | |
185 | +static int snd_card_bt_sco_playback_trigger(snd_pcm_substream_t * | |
186 | + substream, int cmd) | |
187 | +{ | |
188 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
189 | + snd_card_bt_sco_pcm_t *bspcm = | |
190 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
191 | + return -ENXIO); | |
192 | + snd_card_bt_sco_t *bt_sco = snd_pcm_substream_chip(substream); | |
193 | + | |
194 | + dprintk("playback_trigger %d\n", cmd); | |
195 | + | |
196 | + if (cmd == SNDRV_PCM_TRIGGER_START) { | |
197 | + bt_sco->playback = bspcm; | |
198 | + dprintk("setting playback to bspcm\n"); | |
199 | + } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { | |
200 | + bt_sco->playback = NULL; | |
201 | + dprintk("setting playback to NULL\n"); | |
202 | + } else { | |
203 | + return -EINVAL; | |
204 | + } | |
205 | + return 0; | |
206 | +} | |
207 | + | |
208 | +static int snd_card_bt_sco_capture_trigger(snd_pcm_substream_t * | |
209 | + substream, int cmd) | |
210 | +{ | |
211 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
212 | + snd_card_bt_sco_pcm_t *bspcm = | |
213 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
214 | + return -ENXIO); | |
215 | + snd_card_bt_sco_t *bt_sco = snd_pcm_substream_chip(substream); | |
216 | + | |
217 | + dprintk("capture_trigger %d\n", cmd); | |
218 | + | |
219 | + if (cmd == SNDRV_PCM_TRIGGER_START) { | |
220 | + bt_sco->capture = bspcm; | |
221 | + dprintk("setting capture to bspcm\n"); | |
222 | + } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { | |
223 | + bt_sco->capture = NULL; | |
224 | + dprintk("setting capture to NULL\n"); | |
225 | + } else { | |
226 | + return -EINVAL; | |
227 | + } | |
228 | + return 0; | |
229 | +} | |
230 | + | |
231 | +static int snd_card_bt_sco_pcm_prepare(snd_pcm_substream_t * substream) | |
232 | +{ | |
233 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
234 | + snd_card_bt_sco_pcm_t *bspcm = | |
235 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
236 | + return -ENXIO); | |
237 | + unsigned int bps; | |
238 | + | |
239 | + bps = runtime->rate * runtime->channels; | |
240 | + bps *= snd_pcm_format_width(runtime->format); | |
241 | + bps /= 8; | |
242 | + if (bps <= 0) | |
243 | + return -EINVAL; | |
244 | + bspcm->pcm_bps = bps; | |
245 | + bspcm->pcm_size = snd_pcm_lib_buffer_bytes(substream); | |
246 | + bspcm->pcm_count = snd_pcm_lib_period_bytes(substream); | |
247 | + bspcm->pcm_irq_pos = 0; | |
248 | + bspcm->pcm_buf_pos = 0; | |
249 | + dprintk( | |
250 | + "prepare ok bps: %d size: %d count: %d\n", | |
251 | + bspcm->pcm_bps, bspcm->pcm_size, | |
252 | + bspcm->pcm_count); | |
253 | + return 0; | |
254 | +} | |
255 | + | |
256 | +static int snd_card_bt_sco_playback_prepare(snd_pcm_substream_t * | |
257 | + substream) | |
258 | +{ | |
259 | + return snd_card_bt_sco_pcm_prepare(substream); | |
260 | +} | |
261 | + | |
262 | +static int snd_card_bt_sco_capture_prepare(snd_pcm_substream_t * | |
263 | + substream) | |
264 | +{ | |
265 | + dprintk("capture_prepare\n"); | |
266 | + return snd_card_bt_sco_pcm_prepare(substream); | |
267 | +} | |
268 | + | |
269 | +static void snd_card_bt_sco_pcm_receive(snd_card_bt_sco_pcm_t * bspcm, | |
270 | + unsigned char *data, | |
271 | + unsigned int len) | |
272 | +{ | |
273 | + unsigned long flags; | |
274 | + unsigned int oldptr; | |
275 | + | |
276 | + spin_lock_irqsave(&bspcm->lock, flags); | |
277 | + oldptr = bspcm->pcm_buf_pos; | |
278 | + bspcm->pcm_irq_pos += len; | |
279 | + bspcm->pcm_buf_pos += len; | |
280 | + bspcm->pcm_buf_pos %= bspcm->pcm_size; | |
281 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
282 | + /* copy a data chunk */ | |
283 | + if (oldptr + len > bspcm->pcm_size) { | |
284 | + unsigned int cnt = bspcm->pcm_size - oldptr; | |
285 | + memcpy(bspcm->substream->runtime->dma_area + oldptr, data, | |
286 | + cnt); | |
287 | + memcpy(bspcm->substream->runtime->dma_area, data + cnt, | |
288 | + len - cnt); | |
289 | + } else { | |
290 | + memcpy(bspcm->substream->runtime->dma_area + oldptr, data, | |
291 | + len); | |
292 | + } | |
293 | + /* update the pointer, call callback if necessary */ | |
294 | + spin_lock_irqsave(&bspcm->lock, flags); | |
295 | + if (bspcm->pcm_irq_pos >= bspcm->pcm_count) { | |
296 | + bspcm->pcm_irq_pos %= bspcm->pcm_count; | |
297 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
298 | + snd_pcm_period_elapsed(bspcm->substream); | |
299 | + } else | |
300 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
301 | + | |
302 | +} | |
303 | + | |
304 | +static void snd_card_bt_sco_pcm_send(snd_card_bt_sco_pcm_t * bspcm, | |
305 | + unsigned char *data, | |
306 | + unsigned int len) | |
307 | +{ | |
308 | + unsigned long flags; | |
309 | + unsigned int oldptr; | |
310 | + | |
311 | + spin_lock_irqsave(&bspcm->lock, flags); | |
312 | + oldptr = bspcm->pcm_buf_pos; | |
313 | + bspcm->pcm_irq_pos += len; | |
314 | + bspcm->pcm_buf_pos += len; | |
315 | + bspcm->pcm_buf_pos %= bspcm->pcm_size; | |
316 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
317 | + /* copy a data chunk */ | |
318 | + if (oldptr + len > bspcm->pcm_size) { | |
319 | + unsigned int cnt = bspcm->pcm_size - oldptr; | |
320 | + memcpy(data, bspcm->substream->runtime->dma_area + oldptr, | |
321 | + cnt); | |
322 | + memcpy(data + cnt, bspcm->substream->runtime->dma_area, | |
323 | + len - cnt); | |
324 | + } else { | |
325 | + memcpy(data, bspcm->substream->runtime->dma_area + oldptr, | |
326 | + len); | |
327 | + } | |
328 | + /* update the pointer, call callback if necessary */ | |
329 | + spin_lock_irqsave(&bspcm->lock, flags); | |
330 | + if (bspcm->pcm_irq_pos >= bspcm->pcm_count) { | |
331 | + bspcm->pcm_irq_pos %= bspcm->pcm_count; | |
332 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
333 | + snd_pcm_period_elapsed(bspcm->substream); | |
334 | + } else | |
335 | + spin_unlock_irqrestore(&bspcm->lock, flags); | |
336 | +} | |
337 | + | |
338 | +static snd_pcm_uframes_t | |
339 | +snd_card_bt_sco_playback_pointer(snd_pcm_substream_t * substream) | |
340 | +{ | |
341 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
342 | + snd_card_bt_sco_pcm_t *bspcm = | |
343 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
344 | + return -ENXIO); | |
345 | + | |
346 | + return bytes_to_frames(runtime, bspcm->pcm_buf_pos); | |
347 | +} | |
348 | + | |
349 | +static snd_pcm_uframes_t | |
350 | +snd_card_bt_sco_capture_pointer(snd_pcm_substream_t * substream) | |
351 | +{ | |
352 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
353 | + snd_card_bt_sco_pcm_t *bspcm = | |
354 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
355 | + return -ENXIO); | |
356 | + | |
357 | + return bytes_to_frames(runtime, bspcm->pcm_buf_pos); | |
358 | +} | |
359 | + | |
360 | +static snd_pcm_hardware_t snd_card_bt_sco_playback = { | |
361 | + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
362 | + SNDRV_PCM_INFO_MMAP_VALID), | |
363 | + .formats = SNDRV_PCM_FMTBIT_S8 /* | SNDRV_PCM_FMTBIT_S16_LE */ , | |
364 | + .rates = SNDRV_PCM_RATE_8000, | |
365 | + .rate_min = 8000, | |
366 | + .rate_max = 8000, | |
367 | + .channels_min = 1, | |
368 | + .channels_max = 1, | |
369 | + .buffer_bytes_max = MAX_BUFFER_SIZE, | |
370 | + .period_bytes_min = 24, | |
371 | + .period_bytes_max = MAX_BUFFER_SIZE, | |
372 | + .periods_min = 1, | |
373 | + .periods_max = 4*8000/24, | |
374 | + .fifo_size = 0, | |
375 | +}; | |
376 | + | |
377 | +static snd_pcm_hardware_t snd_card_bt_sco_capture = { | |
378 | + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
379 | + SNDRV_PCM_INFO_MMAP_VALID), | |
380 | + .formats = SNDRV_PCM_FMTBIT_S8 /* | SNDRV_PCM_FMTBIT_S16_LE */ , | |
381 | + .rates = SNDRV_PCM_RATE_8000, | |
382 | + .rate_min = 8000, | |
383 | + .rate_max = 8000, | |
384 | + .channels_min = 1, | |
385 | + .channels_max = 1, | |
386 | + .buffer_bytes_max = MAX_BUFFER_SIZE, | |
387 | + .period_bytes_min = 24, | |
388 | + .period_bytes_max = MAX_BUFFER_SIZE, | |
389 | + .periods_min = 1, | |
390 | + .periods_max = 4*8000/24, | |
391 | + .fifo_size = 0, | |
392 | +}; | |
393 | + | |
394 | +static void snd_card_bt_sco_runtime_free(snd_pcm_runtime_t * runtime) | |
395 | +{ | |
396 | + snd_card_bt_sco_pcm_t *bspcm = | |
397 | + snd_magic_cast(snd_card_bt_sco_pcm_t, runtime->private_data, | |
398 | + return); | |
399 | + snd_magic_kfree(bspcm); | |
400 | +} | |
401 | + | |
402 | +static int snd_card_bt_sco_playback_open(snd_pcm_substream_t * | |
403 | + substream) | |
404 | +{ | |
405 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
406 | + snd_card_bt_sco_pcm_t *bspcm; | |
407 | + | |
408 | + dprintk("playback_open\n"); | |
409 | + | |
410 | + bspcm = snd_magic_kcalloc(snd_card_bt_sco_pcm_t, 0, GFP_KERNEL); | |
411 | + if (bspcm == NULL) | |
412 | + return -ENOMEM; | |
413 | + if ((runtime->dma_area = | |
414 | + snd_malloc_pages_fallback(MAX_BUFFER_SIZE, GFP_KERNEL, | |
415 | + &runtime->dma_bytes)) == NULL) { | |
416 | + snd_magic_kfree(bspcm); | |
417 | + return -ENOMEM; | |
418 | + } | |
419 | + spin_lock_init(&bspcm->lock); | |
420 | + bspcm->substream = substream; | |
421 | + runtime->private_data = bspcm; | |
422 | + runtime->private_free = snd_card_bt_sco_runtime_free; | |
423 | + runtime->hw = snd_card_bt_sco_playback; | |
424 | + return 0; | |
425 | +} | |
426 | + | |
427 | +static int snd_card_bt_sco_capture_open(snd_pcm_substream_t * substream) | |
428 | +{ | |
429 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
430 | + snd_card_bt_sco_pcm_t *bspcm; | |
431 | + | |
432 | + dprintk("capture_open\n"); | |
433 | + | |
434 | + bspcm = snd_magic_kcalloc(snd_card_bt_sco_pcm_t, 0, GFP_KERNEL); | |
435 | + if (bspcm == NULL) | |
436 | + return -ENOMEM; | |
437 | + if ((runtime->dma_area = | |
438 | + snd_malloc_pages_fallback(MAX_BUFFER_SIZE, GFP_KERNEL, | |
439 | + &runtime->dma_bytes)) == NULL) { | |
440 | + snd_magic_kfree(bspcm); | |
441 | + return -ENOMEM; | |
442 | + } | |
443 | + memset(runtime->dma_area, 0, runtime->dma_bytes); | |
444 | + spin_lock_init(&bspcm->lock); | |
445 | + bspcm->substream = substream; | |
446 | + runtime->private_data = bspcm; | |
447 | + runtime->private_free = snd_card_bt_sco_runtime_free; | |
448 | + runtime->hw = snd_card_bt_sco_capture; | |
449 | + return 0; | |
450 | +} | |
451 | + | |
452 | +static int snd_card_bt_sco_playback_close(snd_pcm_substream_t * | |
453 | + substream) | |
454 | +{ | |
455 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
456 | + snd_card_bt_sco_t *bt_sco = snd_pcm_substream_chip(substream); | |
457 | + | |
458 | + snd_assert(bt_sco->playback == NULL, ;); | |
459 | + | |
460 | + /* Ensure any references to this in our thread have finished */ | |
461 | + down(&bt_sco->playback_sem); | |
462 | + up(&bt_sco->playback_sem); | |
463 | + | |
464 | + snd_free_pages(runtime->dma_area, runtime->dma_bytes); | |
465 | + return 0; | |
466 | +} | |
467 | + | |
468 | +static int snd_card_bt_sco_capture_close(snd_pcm_substream_t * | |
469 | + substream) | |
470 | +{ | |
471 | + snd_pcm_runtime_t *runtime = substream->runtime; | |
472 | + struct snd_card_bt_sco *bt_sco = (struct snd_card_bt_sco *) substream->private_data; | |
473 | + | |
474 | + snd_assert(bt_sco->capture == NULL, ;); | |
475 | + | |
476 | + /* Ensure any references to this in our thread have finished */ | |
477 | + down(&bt_sco->capture_sem); | |
478 | + up(&bt_sco->capture_sem); | |
479 | + | |
480 | + snd_free_pages(runtime->dma_area, runtime->dma_bytes); | |
481 | + return 0; | |
482 | +} | |
483 | + | |
484 | +static snd_pcm_ops_t snd_card_bt_sco_playback_ops = { | |
485 | + .open = snd_card_bt_sco_playback_open, | |
486 | + .close = snd_card_bt_sco_playback_close, | |
487 | + .ioctl = snd_pcm_lib_ioctl, | |
488 | + .prepare = snd_card_bt_sco_playback_prepare, | |
489 | + .trigger = snd_card_bt_sco_playback_trigger, | |
490 | + .pointer = snd_card_bt_sco_playback_pointer, | |
491 | +}; | |
492 | + | |
493 | +static snd_pcm_ops_t snd_card_bt_sco_capture_ops = { | |
494 | + .open = snd_card_bt_sco_capture_open, | |
495 | + .close = snd_card_bt_sco_capture_close, | |
496 | + .ioctl = snd_pcm_lib_ioctl, | |
497 | + .prepare = snd_card_bt_sco_capture_prepare, | |
498 | + .trigger = snd_card_bt_sco_capture_trigger, | |
499 | + .pointer = snd_card_bt_sco_capture_pointer, | |
500 | +}; | |
501 | + | |
502 | +static int __init snd_card_bt_sco_pcm(snd_card_bt_sco_t * bt_sco) | |
503 | +{ | |
504 | + snd_pcm_t *pcm; | |
505 | + int err; | |
506 | + | |
507 | + if ((err = | |
508 | + snd_pcm_new(bt_sco->card, "Bluetooth SCO PCM", 0, 1, 1, | |
509 | + &pcm)) < 0) | |
510 | + return err; | |
511 | + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, | |
512 | + &snd_card_bt_sco_playback_ops); | |
513 | + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, | |
514 | + &snd_card_bt_sco_capture_ops); | |
515 | + pcm->private_data = bt_sco; | |
516 | + pcm->info_flags = 0; | |
517 | + strcpy(pcm->name, "BT SCO PCM"); | |
518 | + return 0; | |
519 | +} | |
520 | + | |
521 | +#define BT_SCO_VOLUME(xname, xindex, addr) \ | |
522 | +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \ | |
523 | + .info = snd_bt_sco_volume_info, \ | |
524 | + .get = snd_bt_sco_volume_get, .put = snd_bt_sco_volume_put, \ | |
525 | + .private_value = addr } | |
526 | + | |
527 | +static int snd_bt_sco_volume_info(snd_kcontrol_t * kcontrol, | |
528 | + snd_ctl_elem_info_t * uinfo) | |
529 | +{ | |
530 | + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
531 | + uinfo->count = 1; | |
532 | + uinfo->value.integer.min = MIXER_MIN_VOLUME; | |
533 | + uinfo->value.integer.max = MIXER_MAX_VOLUME; | |
534 | + return 0; | |
535 | +} | |
536 | + | |
537 | +static int snd_bt_sco_volume_get(snd_kcontrol_t * kcontrol, | |
538 | + snd_ctl_elem_value_t * ucontrol) | |
539 | +{ | |
540 | + snd_card_bt_sco_t *bt_sco = _snd_kcontrol_chip(kcontrol); | |
541 | + unsigned long flags; | |
542 | + int addr = kcontrol->private_value; | |
543 | + | |
544 | + spin_lock_irqsave(&bt_sco->mixer_lock, flags); | |
545 | + ucontrol->value.integer.value[0] = bt_sco->mixer_volume[addr]; | |
546 | + spin_unlock_irqrestore(&bt_sco->mixer_lock, flags); | |
547 | + return 0; | |
548 | +} | |
549 | + | |
550 | +static int snd_bt_sco_volume_put(snd_kcontrol_t * kcontrol, | |
551 | + snd_ctl_elem_value_t * ucontrol) | |
552 | +{ | |
553 | + snd_card_bt_sco_t *bt_sco = _snd_kcontrol_chip(kcontrol); | |
554 | + unsigned long flags; | |
555 | + int changed, addr = kcontrol->private_value; | |
556 | + int vol; | |
557 | + | |
558 | + vol = ucontrol->value.integer.value[0]; | |
559 | + if (vol < MIXER_MIN_VOLUME) | |
560 | + vol =MIXER_MIN_VOLUME; | |
561 | + if (vol > MIXER_MAX_VOLUME) | |
562 | + vol = MIXER_MAX_VOLUME; | |
563 | + spin_lock_irqsave(&bt_sco->mixer_lock, flags); | |
564 | + changed = bt_sco->mixer_volume[addr] != vol; | |
565 | + bt_sco->mixer_volume[addr] = vol; | |
566 | + spin_unlock_irqrestore(&bt_sco->mixer_lock, flags); | |
567 | + if (changed) { | |
568 | + spin_lock_irqsave(&bt_sco->mixer_changed_lock, flags); | |
569 | + bt_sco->mixer_changed = 1; | |
570 | + spin_unlock_irqrestore(&bt_sco->mixer_changed_lock, flags); | |
571 | + wake_up(&bt_sco->hwdep_wait); | |
572 | + } | |
573 | + return changed; | |
574 | +} | |
575 | + | |
576 | +static int snd_bt_sco_boolean_info(snd_kcontrol_t *kcontrol, | |
577 | + snd_ctl_elem_info_t *uinfo) | |
578 | +{ | |
579 | + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
580 | + uinfo->count = 1; | |
581 | + uinfo->value.integer.min = 0; | |
582 | + uinfo->value.integer.max = 1; | |
583 | + return 0; | |
584 | +} | |
585 | + | |
586 | +static int snd_bt_sco_loopback_get(snd_kcontrol_t * kcontrol, | |
587 | + snd_ctl_elem_value_t * ucontrol) | |
588 | +{ | |
589 | + snd_card_bt_sco_t *bt_sco = _snd_kcontrol_chip(kcontrol); | |
590 | + unsigned long flags; | |
591 | + | |
592 | + spin_lock_irqsave(&bt_sco->mixer_lock, flags); | |
593 | + ucontrol->value.integer.value[0] = bt_sco->loopback; | |
594 | + spin_unlock_irqrestore(&bt_sco->mixer_lock, flags); | |
595 | + return 0; | |
596 | +} | |
597 | + | |
598 | +static int snd_bt_sco_loopback_put(snd_kcontrol_t * kcontrol, | |
599 | + snd_ctl_elem_value_t * ucontrol) | |
600 | +{ | |
601 | + snd_card_bt_sco_t *bt_sco = _snd_kcontrol_chip(kcontrol); | |
602 | + unsigned long flags; | |
603 | + int changed; | |
604 | + int loopback; | |
605 | + | |
606 | + loopback = !!ucontrol->value.integer.value[0]; | |
607 | + | |
608 | + spin_lock_irqsave(&bt_sco->mixer_lock, flags); | |
609 | + changed = bt_sco->loopback != loopback; | |
610 | + bt_sco->loopback = loopback; | |
611 | + spin_unlock_irqrestore(&bt_sco->mixer_lock, flags); | |
612 | + return changed; | |
613 | +} | |
614 | + | |
615 | +#define BT_SCO_CONTROLS (sizeof(snd_bt_sco_controls)/sizeof(snd_kcontrol_new_t)) | |
616 | + | |
617 | +static snd_kcontrol_new_t snd_bt_sco_controls[] = { | |
618 | + BT_SCO_VOLUME("Master Volume", 0, MIXER_ADDR_MASTER), | |
619 | + BT_SCO_VOLUME("Mic Volume", 0, MIXER_ADDR_MIC), | |
620 | + { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
621 | + .name = "Loopback Switch", | |
622 | + .index = 0, | |
623 | + .info = snd_bt_sco_boolean_info, | |
624 | + .get = snd_bt_sco_loopback_get, | |
625 | + .put = snd_bt_sco_loopback_put, | |
626 | + } | |
627 | +}; | |
628 | + | |
629 | +int __init snd_card_bt_sco_new_mixer(snd_card_bt_sco_t *bt_sco) | |
630 | +{ | |
631 | + snd_card_t *card = bt_sco->card; | |
632 | + | |
633 | + unsigned int idx; | |
634 | + int err; | |
635 | + | |
636 | + snd_assert(bt_sco != NULL, return -EINVAL); | |
637 | + spin_lock_init(&bt_sco->mixer_lock); | |
638 | + strcpy(card->mixername, "BT Headset Mixer"); | |
639 | + | |
640 | + for (idx = 0; idx < BT_SCO_CONTROLS; idx++) { | |
641 | + bt_sco->mixer_controls[idx] = | |
642 | + snd_ctl_new1(&snd_bt_sco_controls[idx],bt_sco); | |
643 | + | |
644 | + if ((err = snd_ctl_add(card,bt_sco->mixer_controls[idx])) < 0) | |
645 | + return err; | |
646 | + } | |
647 | + return 0; | |
648 | +} | |
649 | + | |
650 | +static int snd_card_bt_open(snd_hwdep_t * hw, struct file *file) | |
651 | +{ | |
652 | + return 0; | |
653 | +} | |
654 | + | |
655 | +static int snd_card_bt_release(snd_hwdep_t * hw, struct file *file) | |
656 | +{ | |
657 | + return 0; | |
658 | +} | |
659 | + | |
660 | + | |
661 | +static int snd_card_bt_ioctl(snd_hwdep_t * hw, struct file *file, | |
662 | + unsigned int cmd, unsigned long arg) | |
663 | +{ | |
664 | + snd_card_bt_sco_t *bt_sco = | |
665 | + snd_magic_cast(snd_card_bt_sco_t,hw->card->private_data,return -ENXIO); | |
666 | + struct socket *sock; | |
667 | + int err = -EINVAL; | |
668 | + int fd = arg; | |
669 | + | |
670 | + switch (cmd) { | |
671 | + case SNDRV_BT_SCO_IOCTL_SET_SCO_SOCKET: | |
672 | + err = 0; | |
673 | + /* Interrupt any socket operations, so that we may | |
674 | + * change the socket */ | |
675 | + down(&bt_sco->sock_sem); | |
676 | + kill_proc(bt_sco->thread_pid, SIGINT, 1); | |
677 | + if (bt_sco->sco_sock) { | |
678 | + dprintk("Disposing of previous socket count %d\n",file_count(bt_sco->sco_sock->file)); | |
679 | + /* Extra brackets needed here since sockfd_put is a poorly implemented macro */ | |
680 | + sockfd_put(((struct socket*) bt_sco->sco_sock)); | |
681 | + | |
682 | + bt_sco->sco_sock = NULL; | |
683 | + } | |
684 | + | |
685 | + if (fd>=0) { | |
686 | + err = -EINVAL; | |
687 | + sock = sockfd_lookup(fd, &err); | |
688 | + if (sock) { | |
689 | + if (sock->sk->sk_family == PF_BLUETOOTH && | |
690 | + sock->sk->sk_protocol == BTPROTO_SCO) { | |
691 | + bt_sco->sco_sock = sock; | |
692 | + wake_up(&bt_sco->wait); | |
693 | + err = 0; | |
694 | + } else { | |
695 | + dprintk("Not a bluetooth SCO socket %d:%d\n", | |
696 | + sock->sk->sk_family, | |
697 | + sock->sk->sk_protocol); | |
698 | + sockfd_put(sock); | |
699 | + } | |
700 | + } | |
701 | + } | |
702 | + up(&bt_sco->sock_sem); | |
703 | + break; | |
704 | + } | |
705 | + return err; | |
706 | +} | |
707 | + | |
708 | +static long snd_card_bt_write(snd_hwdep_t * hw, const char *buf, long count, | |
709 | + loff_t * offset) | |
710 | +{ | |
711 | + snd_card_bt_sco_t *bt_sco = | |
712 | + snd_magic_cast(snd_card_bt_sco_t,hw->card->private_data,return -ENXIO); | |
713 | + int mixer_volume[MIXER_ADDR_LAST + 1]; | |
714 | + int retval; | |
715 | + int i; | |
716 | + | |
717 | + if (count != sizeof(mixer_volume)) | |
718 | + return -EINVAL; | |
719 | + | |
720 | + if (copy_from_user(mixer_volume,buf,sizeof(mixer_volume))) | |
721 | + return -EFAULT; | |
722 | + | |
723 | + retval = sizeof(mixer_volume); | |
724 | + | |
725 | + spin_lock_irq(&bt_sco->mixer_lock); | |
726 | + for (i=0;i<=MIXER_ADDR_LAST;i++) { | |
727 | + int vol = mixer_volume[i]; | |
728 | + if (vol>MIXER_MAX_VOLUME) | |
729 | + vol = MIXER_MAX_VOLUME; | |
730 | + if (vol<MIXER_MIN_VOLUME) | |
731 | + vol = MIXER_MIN_VOLUME; | |
732 | + if (bt_sco->mixer_volume[i] != vol) { | |
733 | + bt_sco->mixer_volume[i] = vol; | |
734 | + snd_ctl_notify(bt_sco->card, | |
735 | + SNDRV_CTL_EVENT_MASK_VALUE, | |
736 | + &bt_sco->mixer_controls[i]->id); | |
737 | + } | |
738 | + } | |
739 | + spin_unlock_irq(&bt_sco->mixer_lock); | |
740 | + | |
741 | + return retval; | |
742 | +} | |
743 | + | |
744 | +static long snd_card_bt_read(snd_hwdep_t * hw, char *buf, long count, | |
745 | + loff_t * offset) | |
746 | +{ | |
747 | + snd_card_bt_sco_t *bt_sco = | |
748 | + snd_magic_cast(snd_card_bt_sco_t,hw->card->private_data,return -ENXIO); | |
749 | + DECLARE_WAITQUEUE(wait, current); | |
750 | + ssize_t retval; | |
751 | + | |
752 | + if (count != sizeof(bt_sco->mixer_volume)) | |
753 | + return -EINVAL; | |
754 | + | |
755 | + add_wait_queue(&bt_sco->hwdep_wait, &wait); | |
756 | + current->state = TASK_INTERRUPTIBLE; | |
757 | + do { | |
758 | + int changed; | |
759 | + spin_lock_irq(&bt_sco->mixer_changed_lock); | |
760 | + changed = bt_sco->mixer_changed; | |
761 | + bt_sco->mixer_changed = 0; | |
762 | + spin_unlock_irq(&bt_sco->mixer_changed_lock); | |
763 | + | |
764 | + if (changed != 0) | |
765 | + break; | |
766 | + | |
767 | + if (signal_pending(current)) { | |
768 | + retval = -ERESTARTSYS; | |
769 | + goto out; | |
770 | + } | |
771 | + schedule(); | |
772 | + } while (1); | |
773 | + if (copy_to_user(buf, bt_sco->mixer_volume, sizeof(bt_sco->mixer_volume))) | |
774 | + retval = -EFAULT; | |
775 | + else retval = sizeof(bt_sco->mixer_volume); | |
776 | + | |
777 | + out: | |
778 | + current->state = TASK_RUNNING; | |
779 | + remove_wait_queue(&bt_sco->hwdep_wait, &wait); | |
780 | + return retval; | |
781 | +} | |
782 | + | |
783 | +static unsigned int snd_card_bt_poll(snd_hwdep_t * hw, | |
784 | + struct file *file, | |
785 | + poll_table * wait) | |
786 | +{ | |
787 | + snd_card_bt_sco_t *bt_sco = | |
788 | + snd_magic_cast(snd_card_bt_sco_t,hw->card->private_data,return 0); | |
789 | + int changed; | |
790 | + | |
791 | + poll_wait(file, &bt_sco->hwdep_wait, wait); | |
792 | + | |
793 | + spin_lock_irq(&bt_sco->mixer_changed_lock); | |
794 | + changed = bt_sco->mixer_changed; | |
795 | + spin_unlock_irq(&bt_sco->mixer_changed_lock); | |
796 | + | |
797 | + if (changed != 0) | |
798 | + return POLLIN | POLLRDNORM; | |
799 | + return 0; | |
800 | +} | |
801 | + | |
802 | +static int snd_card_bt_sco_thread(void *data) | |
803 | +{ | |
804 | + snd_card_t *card = (snd_card_t *) data; | |
805 | + snd_card_bt_sco_t *bt_sco = | |
806 | + snd_magic_cast(snd_card_bt_sco_t,card->private_data,return 0); | |
807 | + struct socket *sock; | |
808 | + int len; | |
809 | +#define BUF_SIZE 256 | |
810 | + unsigned char buf[BUF_SIZE]; | |
811 | + struct msghdr msg; | |
812 | + struct iovec iov; | |
813 | + sigset_t unblocked; | |
814 | + | |
815 | + lock_kernel(); | |
816 | + | |
817 | + daemonize("snd-bt-scod"); | |
818 | + sigemptyset(&unblocked); | |
819 | + sigaddset(&unblocked,SIGINT); | |
820 | + sigaddset(&unblocked,SIGTERM); | |
821 | + sigprocmask(SIG_UNBLOCK, &unblocked, NULL); | |
822 | + | |
823 | + /* Pretend so that copy_to_user and friends work */ | |
824 | + set_fs(KERNEL_DS); | |
825 | + | |
826 | + dprintk("snd-bt-scod thread starting\n"); | |
827 | + up(&bt_sco->thread_sem); | |
828 | + | |
829 | + do { | |
830 | + if (signal_pending(current)) | |
831 | + flush_signals(current); | |
832 | + | |
833 | + /* This may be woken up by a wake_up() when | |
834 | + * a new socket is installed, or by a signal. | |
835 | + * Signals are sent to terminate the thread, | |
836 | + * in which case thread_exit is set, and to force | |
837 | + * recvmesg() to wake up (from the ioctl handler) | |
838 | + */ | |
839 | + wait_event_interruptible(bt_sco->wait, | |
840 | + bt_sco->sco_sock!=0); | |
841 | + if (bt_sco->thread_exit) | |
842 | + break; | |
843 | + | |
844 | + down(&bt_sco->sock_sem); | |
845 | + sock = (struct socket*) bt_sco->sco_sock; | |
846 | + if (sock) | |
847 | + get_file(sock->file); | |
848 | + up(&bt_sco->sock_sem); | |
849 | + | |
850 | + if (!sock) | |
851 | + continue; | |
852 | + | |
853 | + /* We have a socket, let's read from it and write to it... */ | |
854 | + | |
855 | + memset(&msg,0,sizeof(msg)); | |
856 | + msg.msg_iov = &iov; | |
857 | + iov.iov_base = buf; | |
858 | + iov.iov_len = BUF_SIZE; | |
859 | + | |
860 | + /* This will block until we receive data or a signal */ | |
861 | + len = sock_recvmsg(sock, &msg, BUF_SIZE, 0); | |
862 | + if (len > 0) { | |
863 | + | |
864 | + down(&bt_sco->capture_sem); | |
865 | + if (bt_sco->capture) { | |
866 | + snd_card_bt_sco_pcm_receive | |
867 | + (bt_sco->capture, | |
868 | + buf, len); | |
869 | + } | |
870 | + up(&bt_sco->capture_sem); | |
871 | + | |
872 | + down(&bt_sco->playback_sem); | |
873 | + | |
874 | + if (bt_sco->playback || !bt_sco->loopback) { | |
875 | + memset(buf, 0, len); | |
876 | +#if 0 | |
877 | + /* fill with tone instead of silence */ | |
878 | + int i; | |
879 | + | |
880 | + for (i=0;i<len/2;i++) { | |
881 | + buf[i] = 0; | |
882 | + } | |
883 | + for (i=len/2;i<len;i++) { | |
884 | + buf[i] = 127; | |
885 | + } | |
886 | +#endif | |
887 | + } | |
888 | + if (bt_sco->playback) { | |
889 | + snd_card_bt_sco_pcm_send | |
890 | + (bt_sco->playback, | |
891 | + buf, len); | |
892 | + | |
893 | + /* Strangely, when the device is open but no audio is | |
894 | + being written by the app, there's an occasional glitch | |
895 | + in the silence data. This hack eliminates it. */ | |
896 | + | |
897 | + int i; | |
898 | + int notzero=-1; | |
899 | + for (i=0;i<len;i++) { | |
900 | + if (buf[i]!=0) { | |
901 | + if (notzero>=0) | |
902 | + break; | |
903 | + notzero = i; | |
904 | + } | |
905 | + } | |
906 | + if (notzero>=0 && i>=len) { | |
907 | + buf[notzero] = 0; | |
908 | + } | |
909 | + } | |
910 | + up(&bt_sco->playback_sem); | |
911 | + | |
912 | +#if 0 | |
913 | + /* This chunk of code lets us record (using arecord) | |
914 | + what data alsa is sending out. | |
915 | + | |
916 | + e.g., when idle, we'd expect something like: | |
917 | + | |
918 | + 8080 8080 8080 8080 8483 8281 8182 8384 | |
919 | + 8080 8080 8080 8080 8080 8080 8080 8080 | |
920 | + 8080 8080 8080 8080 8483 8281 8182 8384 | |
921 | + 8080 8080 8080 8080 8080 8080 8080 8080 | |
922 | + | |
923 | + (this is from 'xxd' of a wav file, that data in | |
924 | + which is unsigned, whereas we are dealing with signed). | |
925 | + */ | |
926 | + | |
927 | + down(&bt_sco->capture_sem); | |
928 | + if (bt_sco->capture) { | |
929 | + snd_card_bt_sco_pcm_receive | |
930 | + (bt_sco->capture, | |
931 | + "\001\002\003\004", 4); | |
932 | + snd_card_bt_sco_pcm_receive | |
933 | + (bt_sco->capture, | |
934 | + buf, len); | |
935 | + snd_card_bt_sco_pcm_receive | |
936 | + (bt_sco->capture, | |
937 | + "\004\003\002\001", 4); | |
938 | + } | |
939 | + up(&bt_sco->capture_sem); | |
940 | +#endif | |
941 | + msg.msg_flags = 0; | |
942 | + msg.msg_iov = &iov; | |
943 | + iov.iov_base = buf; | |
944 | + iov.iov_len = BUF_SIZE; | |
945 | + sock_sendmsg(sock, &msg, len); | |
946 | + } | |
947 | + | |
948 | + /* Expect this to be 3 because we (this thead) have a copy, | |
949 | + the driver process keeps one, and the app has the socket open. | |
950 | + */ | |
951 | + if (file_count(sock->file) != 3) { | |
952 | + dprintk("file_count is %d (expected 3)\n",file_count(sock->file)); | |
953 | + } | |
954 | + fput(sock->file); | |
955 | + | |
956 | + schedule(); | |
957 | + } while (!bt_sco->thread_exit); | |
958 | + | |
959 | + dprintk("thread exiting\n"); | |
960 | + | |
961 | + unlock_kernel(); | |
962 | + complete_and_exit(&bt_sco->thread_done, 0); | |
963 | +} | |
964 | + | |
965 | +static void snd_card_bt_private_free(snd_card_t * card) | |
966 | +{ | |
967 | + snd_card_bt_sco_t *bt_sco = snd_magic_cast(snd_card_bt_sco_t,card->private_data,return); | |
968 | + | |
969 | + dprintk("private_free, killing thread\n"); | |
970 | + bt_sco->thread_exit = 1; | |
971 | + kill_proc(bt_sco->thread_pid, SIGTERM, 1); | |
972 | + wait_for_completion(&bt_sco->thread_done); | |
973 | + dprintk("private_free, thread exited\n"); | |
974 | + | |
975 | + if (bt_sco->sco_sock) { | |
976 | + dprintk("shutdown: freeing socket count %d\n",file_count(bt_sco->sco_sock->file)); | |
977 | + | |
978 | + sockfd_put(((struct socket*) bt_sco->sco_sock)); | |
979 | + } | |
980 | + | |
981 | + snd_magic_kfree(bt_sco); | |
982 | +} | |
983 | + | |
984 | +static int __init snd_card_bt_sco_probe(int dev) | |
985 | +{ | |
986 | + snd_card_t *card; | |
987 | + snd_card_bt_sco_t *bt_sco; | |
988 | + int err; | |
989 | + snd_hwdep_t *hw; | |
990 | + | |
991 | + card = | |
992 | + snd_card_new(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, | |
993 | + THIS_MODULE, 0); | |
994 | + if (card == NULL) | |
995 | + return -ENOMEM; | |
996 | + | |
997 | + bt_sco = snd_magic_kcalloc(snd_card_bt_sco_t, 0, GFP_KERNEL); | |
998 | + card->private_data = bt_sco; | |
999 | + card->private_free = snd_card_bt_private_free; | |
1000 | + | |
1001 | + bt_sco->card = card; | |
1002 | + | |
1003 | + init_completion(&bt_sco->thread_done); | |
1004 | + init_MUTEX_LOCKED(&bt_sco->thread_sem); | |
1005 | + init_MUTEX(&bt_sco->sock_sem); | |
1006 | + init_MUTEX(&bt_sco->capture_sem); | |
1007 | + init_MUTEX(&bt_sco->playback_sem); | |
1008 | + init_waitqueue_head(&bt_sco->wait); | |
1009 | + init_waitqueue_head(&bt_sco->hwdep_wait); | |
1010 | + spin_lock_init(&bt_sco->mixer_changed_lock); | |
1011 | + | |
1012 | + /* These clone flags copied from some other driver. | |
1013 | + Not sure that they're really correct... */ | |
1014 | + bt_sco->thread_pid = | |
1015 | + kernel_thread(snd_card_bt_sco_thread, card, CLONE_KERNEL); | |
1016 | + if (bt_sco->thread_pid < 0) { | |
1017 | + err = bt_sco->thread_pid; | |
1018 | + goto __nodev; | |
1019 | + } | |
1020 | + | |
1021 | + down(&bt_sco->thread_sem); | |
1022 | + | |
1023 | + if ((err = snd_card_bt_sco_pcm(bt_sco)) < 0) | |
1024 | + goto __nodev; | |
1025 | + if ((err = snd_card_bt_sco_new_mixer(bt_sco)) < 0) | |
1026 | + goto __nodev; | |
1027 | + strcpy(card->driver, "Bluetooth SCO"); | |
1028 | + strcpy(card->shortname, "BT Headset"); | |
1029 | + sprintf(card->longname, "BT Headset %i", dev + 1); | |
1030 | + | |
1031 | + err = snd_hwdep_new(card, "BTSCO", 0, &hw); | |
1032 | + if (err < 0) | |
1033 | + goto __nodev; | |
1034 | + | |
1035 | + sprintf(hw->name, "BTSCO"); | |
1036 | + hw->iface = SNDRV_HWDEP_IFACE_BT_SCO; | |
1037 | + hw->ops.open = snd_card_bt_open; | |
1038 | + hw->ops.ioctl = snd_card_bt_ioctl; | |
1039 | + hw->ops.release = snd_card_bt_release; | |
1040 | + hw->ops.read = snd_card_bt_read; | |
1041 | + hw->ops.write = snd_card_bt_write; | |
1042 | + hw->ops.poll = snd_card_bt_poll; | |
1043 | + | |
1044 | + if ((err = snd_card_register(card)) == 0) { | |
1045 | + snd_bt_sco_cards[dev] = card; | |
1046 | + return 0; | |
1047 | + } | |
1048 | + __nodev: | |
1049 | + snd_card_free(card); | |
1050 | + return err; | |
1051 | +} | |
1052 | + | |
1053 | +static int __init alsa_card_bt_sco_init(void) | |
1054 | +{ | |
1055 | + printk(KERN_INFO "snd-bt-sco revision %s\n",mod_revision+11); | |
1056 | + | |
1057 | + if (snd_card_bt_sco_probe(0) < 0) { | |
1058 | +#ifdef MODULE | |
1059 | + printk(KERN_ERR | |
1060 | + "Bluetooth SCO soundcard not found or device busy\n"); | |
1061 | +#endif | |
1062 | + return -ENODEV; | |
1063 | + } | |
1064 | + return 0; | |
1065 | +} | |
1066 | + | |
1067 | +static void __exit alsa_card_bt_sco_exit(void) | |
1068 | +{ | |
1069 | + int idx; | |
1070 | + | |
1071 | + for (idx = 0; idx < SNDRV_CARDS; idx++) | |
1072 | + snd_card_free(snd_bt_sco_cards[idx]); | |
1073 | +} | |
1074 | + | |
1075 | +module_init(alsa_card_bt_sco_init) | |
1076 | + module_exit(alsa_card_bt_sco_exit) | |
1077 | +#ifndef MODULE | |
1078 | +static int __init alsa_card_bt_sco_setup(char *str) | |
1079 | +{ | |
1080 | + static unsigned __initdata nr_dev = 0; | |
1081 | + | |
1082 | + if (nr_dev >= SNDRV_CARDS) | |
1083 | + return 0; | |
1084 | + nr_dev++; | |
1085 | + return 1; | |
1086 | +} | |
1087 | + | |
1088 | +__setup("snd-bt-sco=", alsa_card_bt_sco_setup); | |
1089 | + | |
1090 | +#endif /* ifndef MODULE */ | |
1091 | diff -urN linux/sound/bluetooth/Kconfig linux.new/sound/bluetooth/Kconfig | |
1092 | --- linux/sound/bluetooth/Kconfig 1970-01-01 01:00:00.000000000 +0100 | |
1093 | +++ linux.new/sound/bluetooth/Kconfig 2004-08-23 18:41:39.000000000 +0200 | |
1094 | @@ -0,0 +1,20 @@ | |
1095 | +# ALSA USB drivers | |
1096 | + | |
1097 | +menu "ALSA Bluetooth device" | |
1098 | + depends on SND!=n && USB!=n | |
1099 | + | |
1100 | +config SND_BT_SCO | |
1101 | + tristate "USB Bluetooth Alsa driver" | |
1102 | + depends on SND && USB | |
1103 | + select SND_HWDEP | |
1104 | + select SND_USB_AUDIO | |
1105 | + help | |
1106 | + Say 'Y' or 'M' to include support for USB Bluetooth audio devices. | |
1107 | + This will allow you to use a Bluetooth headset. The driver has to | |
1108 | + be used with the btsco client program and will then create a new | |
1109 | + ALSA device you can normally acces through plughw:Headset (see | |
1110 | + README). You can get the client app and the driver patch from | |
1111 | + http://www.gargan.org/linux/snd-bt-sco or maybe later from | |
1112 | + sourceforge. | |
1113 | + | |
1114 | +endmenu | |
1115 | diff -urN linux/sound/bluetooth/Makefile linux.new/sound/bluetooth/Makefile | |
1116 | --- linux/sound/bluetooth/Makefile 1970-01-01 01:00:00.000000000 +0100 | |
1117 | +++ linux.new/sound/bluetooth/Makefile 2004-07-28 13:39:50.000000000 +0200 | |
1118 | @@ -0,0 +1,26 @@ | |
1119 | +# | |
1120 | +# Makefile for ALSA | |
1121 | +# | |
1122 | + | |
1123 | +snd-bt-sco-objs := btsco.o | |
1124 | + | |
1125 | +# Toplevel Module Dependency | |
1126 | +obj-$(CONFIG_SND_BT_SCO) += snd-bt-sco.o | |
1127 | + | |
1128 | +#ifndef SND_TOPDIR | |
1129 | +#SND_TOPDIR=.. | |
1130 | +#endif | |
1131 | + | |
1132 | +#include $(SND_TOPDIR)/toplevel.config | |
1133 | +#include $(SND_TOPDIR)/Makefile.conf | |
1134 | + | |
1135 | +#obj-$(CONFIG_SND_BT_SCO) += snd-bt-sco.o | |
1136 | +#include $(SND_TOPDIR)/alsa-kernel/bluetooth/Makefile | |
1137 | +# | |
1138 | +#EXTRA_CFLAGS += -I$(SND_TOPDIR)/alsa-kernel/bluetooth | |
1139 | +# | |
1140 | +#include $(SND_TOPDIR)/Rules.make | |
1141 | +# | |
1142 | +#snd-bt-sco-objs := btsco.o | |
1143 | +# | |
1144 | +#btsco.o: ../alsa-kernel/bluetooth/btsco.c | |
1145 | diff -urN linux/sound/Kconfig linux.new/sound/Kconfig | |
1146 | --- linux/sound/Kconfig 2004-08-23 18:46:43.000000000 +0200 | |
1147 | +++ linux.new/sound/Kconfig 2004-08-23 18:36:41.000000000 +0200 | |
1148 | @@ -59,6 +59,8 @@ | |
1149 | # here assuming USB is defined before ALSA | |
1150 | source "sound/usb/Kconfig" | |
1151 | ||
1152 | +source "sound/bluetooth/Kconfig" | |
1153 | + | |
1154 | # the following will depenend on the order of config. | |
1155 | # here assuming PCMCIA is defined before ALSA | |
1156 | source "sound/pcmcia/Kconfig" | |
1157 | diff -urN linux/sound/Makefile linux.new/sound/Makefile | |
1158 | --- linux/sound/Makefile 2004-08-23 18:46:43.000000000 +0200 | |
1159 | +++ linux.new/sound/Makefile 2004-08-23 19:22:46.000000000 +0200 | |
1160 | @@ -4,7 +4,7 @@ | |
1161 | obj-$(CONFIG_SOUND) += soundcore.o | |
1162 | obj-$(CONFIG_SOUND_PRIME) += oss/ | |
1163 | obj-$(CONFIG_DMASOUND) += oss/ | |
1164 | -obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ sparc/ parisc/ pcmcia/ | |
1165 | +obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ sparc/ parisc/ pcmcia/ bluetooth/ | |
1166 | ||
1167 | ifeq ($(CONFIG_SND),y) | |
1168 | obj-y += last.o |