1/*-
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <dev/sound/pcm/sound.h>
28#include <sys/ctype.h>
29
| 1/*-
2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <dev/sound/pcm/sound.h>
28#include <sys/ctype.h>
29
|
30SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/dsp.c 170505 2007-06-10 15:46:34Z mjacob $");
| 30SND_DECLARE_FILE("$FreeBSD: head/sys/dev/sound/pcm/dsp.c 170815 2007-06-16 03:37:28Z ariff $");
|
31
| 31
|
| 32static int dsp_mmap_allow_prot_exec = 0;
33SYSCTL_INT(_hw_snd, OID_AUTO, compat_linux_mmap, CTLFLAG_RW,
34 &dsp_mmap_allow_prot_exec, 0, "linux mmap compatibility");
35
|
32struct dsp_cdevinfo {
33 struct pcm_channel *rdch, *wrch;
| 36struct dsp_cdevinfo {
37 struct pcm_channel *rdch, *wrch;
|
| 38 int busy, simplex;
39 TAILQ_ENTRY(dsp_cdevinfo) link;
|
34};
35
| 40};
41
|
36#define PCM_RDCH(x) (((struct dsp_cdevinfo *)(x)->si_drv1)->rdch)
37#define PCM_WRCH(x) (((struct dsp_cdevinfo *)(x)->si_drv1)->wrch)
| 42#define PCM_RDCH(x) (((struct dsp_cdevinfo *)(x)->si_drv1)->rdch)
43#define PCM_WRCH(x) (((struct dsp_cdevinfo *)(x)->si_drv1)->wrch)
44#define PCM_SIMPLEX(x) (((struct dsp_cdevinfo *)(x)->si_drv1)->simplex)
|
38
| 45
|
39#define PCMDEV_ACQUIRE(x) do { \
40 if ((x)->si_drv1 == NULL) \
41 (x)->si_drv1 = x; \
42} while(0)
| 46#define DSP_CDEVINFO_CACHESIZE 8
|
43
| 47
|
44#define PCMDEV_RELEASE(x) do { \
45 if ((x)->si_drv1 == x) \
46 (x)->si_drv1 = NULL; \
47} while(0)
| 48#define DSP_REGISTERED(x, y) (PCM_REGISTERED(x) && \
49 (y) != NULL && (y)->si_drv1 != NULL)
|
48
49#define OLDPCM_IOCTL
50
51static d_open_t dsp_open;
52static d_close_t dsp_close;
53static d_read_t dsp_read;
54static d_write_t dsp_write;
55static d_ioctl_t dsp_ioctl;
56static d_poll_t dsp_poll;
57static d_mmap_t dsp_mmap;
58
59struct cdevsw dsp_cdevsw = {
60 .d_version = D_VERSION,
| 50
51#define OLDPCM_IOCTL
52
53static d_open_t dsp_open;
54static d_close_t dsp_close;
55static d_read_t dsp_read;
56static d_write_t dsp_write;
57static d_ioctl_t dsp_ioctl;
58static d_poll_t dsp_poll;
59static d_mmap_t dsp_mmap;
60
61struct cdevsw dsp_cdevsw = {
62 .d_version = D_VERSION,
|
61 .d_flags = D_NEEDGIANT,
| |
62 .d_open = dsp_open,
63 .d_close = dsp_close,
64 .d_read = dsp_read,
65 .d_write = dsp_write,
66 .d_ioctl = dsp_ioctl,
67 .d_poll = dsp_poll,
68 .d_mmap = dsp_mmap,
69 .d_name = "dsp",
70};
71
72#ifdef USING_DEVFS
73static eventhandler_tag dsp_ehtag = NULL;
74static int dsp_umax = -1;
75static int dsp_cmax = -1;
76#endif
77
78static int dsp_oss_syncgroup(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_syncgroup *group);
79static int dsp_oss_syncstart(int sg_id);
80static int dsp_oss_policy(struct pcm_channel *wrch, struct pcm_channel *rdch, int policy);
81#ifdef OSSV4_EXPERIMENT
82static int dsp_oss_cookedmode(struct pcm_channel *wrch, struct pcm_channel *rdch, int enabled);
83static int dsp_oss_getchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map);
84static int dsp_oss_setchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map);
85static int dsp_oss_getlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label);
86static int dsp_oss_setlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label);
87static int dsp_oss_getsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song);
88static int dsp_oss_setsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song);
89static int dsp_oss_setname(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *name);
90#endif
91
92static struct snddev_info *
93dsp_get_info(struct cdev *dev)
94{
95 return (devclass_get_softc(pcm_devclass, PCMUNIT(dev)));
96}
97
| 63 .d_open = dsp_open,
64 .d_close = dsp_close,
65 .d_read = dsp_read,
66 .d_write = dsp_write,
67 .d_ioctl = dsp_ioctl,
68 .d_poll = dsp_poll,
69 .d_mmap = dsp_mmap,
70 .d_name = "dsp",
71};
72
73#ifdef USING_DEVFS
74static eventhandler_tag dsp_ehtag = NULL;
75static int dsp_umax = -1;
76static int dsp_cmax = -1;
77#endif
78
79static int dsp_oss_syncgroup(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_syncgroup *group);
80static int dsp_oss_syncstart(int sg_id);
81static int dsp_oss_policy(struct pcm_channel *wrch, struct pcm_channel *rdch, int policy);
82#ifdef OSSV4_EXPERIMENT
83static int dsp_oss_cookedmode(struct pcm_channel *wrch, struct pcm_channel *rdch, int enabled);
84static int dsp_oss_getchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map);
85static int dsp_oss_setchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map);
86static int dsp_oss_getlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label);
87static int dsp_oss_setlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label);
88static int dsp_oss_getsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song);
89static int dsp_oss_setsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song);
90static int dsp_oss_setname(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *name);
91#endif
92
93static struct snddev_info *
94dsp_get_info(struct cdev *dev)
95{
96 return (devclass_get_softc(pcm_devclass, PCMUNIT(dev)));
97}
98
|
98static u_int32_t
| 99static uint32_t
|
99dsp_get_flags(struct cdev *dev)
100{
101 device_t bdev;
102
103 bdev = devclass_get_device(pcm_devclass, PCMUNIT(dev));
104
105 return ((bdev != NULL) ? pcm_getflags(bdev) : 0xffffffff);
106}
107
108static void
| 100dsp_get_flags(struct cdev *dev)
101{
102 device_t bdev;
103
104 bdev = devclass_get_device(pcm_devclass, PCMUNIT(dev));
105
106 return ((bdev != NULL) ? pcm_getflags(bdev) : 0xffffffff);
107}
108
109static void
|
109dsp_set_flags(struct cdev *dev, u_int32_t flags)
| 110dsp_set_flags(struct cdev *dev, uint32_t flags)
|
110{
111 device_t bdev;
112
113 bdev = devclass_get_device(pcm_devclass, PCMUNIT(dev));
114
115 if (bdev != NULL)
116 pcm_setflags(bdev, flags);
117}
118
119/*
120 * return the channels associated with an open device instance.
| 111{
112 device_t bdev;
113
114 bdev = devclass_get_device(pcm_devclass, PCMUNIT(dev));
115
116 if (bdev != NULL)
117 pcm_setflags(bdev, flags);
118}
119
120/*
121 * return the channels associated with an open device instance.
|
121 * set the priority if the device is simplex and one direction (only) is
122 * specified.
| |
123 * lock channels specified.
124 */
125static int
| 122 * lock channels specified.
123 */
124static int
|
126getchns(struct cdev *dev, struct pcm_channel **rdch, struct pcm_channel **wrch, u_int32_t prio)
| 125getchns(struct cdev *dev, struct pcm_channel **rdch, struct pcm_channel **wrch,
126 uint32_t prio)
|
127{
128 struct snddev_info *d;
| 127{
128 struct snddev_info *d;
|
129 u_int32_t flags;
| 129 struct pcm_channel *ch;
130 uint32_t flags;
|
130
| 131
|
131 d = dsp_get_info(dev);
132 if (d == NULL)
133 return -1;
134 pcm_inprog(d, 1);
135 pcm_lock(d);
136 flags = dsp_get_flags(dev);
137 KASSERT((flags & SD_F_PRIO_SET) != SD_F_PRIO_SET, \
138 ("getchns: read and write both prioritised"));
139
140 if ((flags & SD_F_PRIO_SET) == 0 && (prio != (SD_F_PRIO_RD | SD_F_PRIO_WR))) {
141 flags |= prio & (SD_F_PRIO_RD | SD_F_PRIO_WR);
| 132 if (PCM_SIMPLEX(dev) != 0) {
133 d = dsp_get_info(dev);
134 if (!PCM_REGISTERED(d))
135 return (ENXIO);
136 pcm_lock(d);
137 PCM_WAIT(d);
138 PCM_ACQUIRE(d);
139 /*
140 * Note: order is important -
141 * pcm flags -> prio query flags -> wild guess
142 */
143 ch = NULL;
144 flags = dsp_get_flags(dev);
145 if (flags & SD_F_PRIO_WR) {
146 ch = PCM_RDCH(dev);
147 PCM_RDCH(dev) = NULL;
148 } else if (flags & SD_F_PRIO_RD) {
149 ch = PCM_WRCH(dev);
150 PCM_WRCH(dev) = NULL;
151 } else if (prio & SD_F_PRIO_WR) {
152 ch = PCM_RDCH(dev);
153 PCM_RDCH(dev) = NULL;
154 flags |= SD_F_PRIO_WR;
155 } else if (prio & SD_F_PRIO_RD) {
156 ch = PCM_WRCH(dev);
157 PCM_WRCH(dev) = NULL;
158 flags |= SD_F_PRIO_RD;
159 } else if (PCM_WRCH(dev) != NULL) {
160 ch = PCM_RDCH(dev);
161 PCM_RDCH(dev) = NULL;
162 flags |= SD_F_PRIO_WR;
163 } else if (PCM_RDCH(dev) != NULL) {
164 ch = PCM_WRCH(dev);
165 PCM_WRCH(dev) = NULL;
166 flags |= SD_F_PRIO_RD;
167 }
168 PCM_SIMPLEX(dev) = 0;
|
142 dsp_set_flags(dev, flags);
| 169 dsp_set_flags(dev, flags);
|
| 170 if (ch != NULL) {
171 CHN_LOCK(ch);
172 pcm_chnref(ch, -1);
173 pcm_chnrelease(ch);
174 }
175 PCM_RELEASE(d);
176 pcm_unlock(d);
|
143 }
144
145 *rdch = PCM_RDCH(dev);
146 *wrch = PCM_WRCH(dev);
| 177 }
178
179 *rdch = PCM_RDCH(dev);
180 *wrch = PCM_WRCH(dev);
|
147 if ((flags & SD_F_SIMPLEX) && (flags & SD_F_PRIO_SET)) {
148 if (prio) {
149 if (*rdch && flags & SD_F_PRIO_WR) {
150 PCM_RDCH(dev) = NULL;
151 *rdch = pcm_getfakechan(d);
152 } else if (*wrch && flags & SD_F_PRIO_RD) {
153 PCM_WRCH(dev) = NULL;
154 *wrch = pcm_getfakechan(d);
155 }
156 }
| |
157
| 181
|
158 pcm_getfakechan(d)->flags |= CHN_F_BUSY;
159 }
160 pcm_unlock(d);
161
162 if (*rdch && *rdch != pcm_getfakechan(d) && (prio & SD_F_PRIO_RD))
| 182 if (*rdch != NULL && (prio & SD_F_PRIO_RD))
|
163 CHN_LOCK(*rdch);
| 183 CHN_LOCK(*rdch);
|
164 if (*wrch && *wrch != pcm_getfakechan(d) && (prio & SD_F_PRIO_WR))
| 184 if (*wrch != NULL && (prio & SD_F_PRIO_WR))
|
165 CHN_LOCK(*wrch);
166
| 185 CHN_LOCK(*wrch);
186
|
167 return 0;
| 187 return (0);
|
168}
169
170/* unlock specified channels */
171static void
| 188}
189
190/* unlock specified channels */
191static void
|
172relchns(struct cdev *dev, struct pcm_channel *rdch, struct pcm_channel *wrch, u_int32_t prio)
| 192relchns(struct cdev *dev, struct pcm_channel *rdch, struct pcm_channel *wrch,
193 uint32_t prio)
|
173{
| 194{
|
174 struct snddev_info *d;
175
176 d = dsp_get_info(dev);
177 if (d == NULL)
178 return;
179 if (wrch && wrch != pcm_getfakechan(d) && (prio & SD_F_PRIO_WR))
| 195 if (wrch != NULL && (prio & SD_F_PRIO_WR))
|
180 CHN_UNLOCK(wrch);
| 196 CHN_UNLOCK(wrch);
|
181 if (rdch && rdch != pcm_getfakechan(d) && (prio & SD_F_PRIO_RD))
| 197 if (rdch != NULL && (prio & SD_F_PRIO_RD))
|
182 CHN_UNLOCK(rdch);
| 198 CHN_UNLOCK(rdch);
|
183 pcm_inprog(d, -1);
| |
184}
185
186static void
187dsp_cdevinfo_alloc(struct cdev *dev,
188 struct pcm_channel *rdch, struct pcm_channel *wrch)
189{
| 199}
200
201static void
202dsp_cdevinfo_alloc(struct cdev *dev,
203 struct pcm_channel *rdch, struct pcm_channel *wrch)
204{
|
190 KASSERT(dev != NULL && dev->si_drv1 == dev && rdch != wrch,
| 205 struct snddev_info *d;
206 struct dsp_cdevinfo *cdi;
207 int simplex;
208
209 d = dsp_get_info(dev);
210
211 KASSERT(PCM_REGISTERED(d) && dev != NULL && dev->si_drv1 == NULL &&
212 rdch != wrch,
|
191 ("bogus %s(), what are you trying to accomplish here?", __func__));
| 213 ("bogus %s(), what are you trying to accomplish here?", __func__));
|
192
193 dev->si_drv1 = malloc(sizeof(struct dsp_cdevinfo), M_DEVBUF,
194 M_WAITOK | M_ZERO);
195 PCM_RDCH(dev) = rdch;
196 PCM_WRCH(dev) = wrch;
| 214 PCM_BUSYASSERT(d);
215 mtx_assert(d->lock, MA_OWNED);
216
217 simplex = (dsp_get_flags(dev) & SD_F_SIMPLEX) ? 1 : 0;
218
219 /*
220 * Scan for free instance entry and put it into the end of list.
221 * Create new one if necessary.
222 */
223 TAILQ_FOREACH(cdi, &d->dsp_cdevinfo_pool, link) {
224 if (cdi->busy != 0)
225 break;
226 cdi->rdch = rdch;
227 cdi->wrch = wrch;
228 cdi->simplex = simplex;
229 cdi->busy = 1;
230 TAILQ_REMOVE(&d->dsp_cdevinfo_pool, cdi, link);
231 TAILQ_INSERT_TAIL(&d->dsp_cdevinfo_pool, cdi, link);
232 dev->si_drv1 = cdi;
233 return;
234 }
235 pcm_unlock(d);
236 cdi = malloc(sizeof(*cdi), M_DEVBUF, M_WAITOK | M_ZERO);
237 pcm_lock(d);
238 cdi->rdch = rdch;
239 cdi->wrch = wrch;
240 cdi->simplex = simplex;
241 cdi->busy = 1;
242 TAILQ_INSERT_TAIL(&d->dsp_cdevinfo_pool, cdi, link);
243 dev->si_drv1 = cdi;
|
197}
198
199static void
200dsp_cdevinfo_free(struct cdev *dev)
201{
| 244}
245
246static void
247dsp_cdevinfo_free(struct cdev *dev)
248{
|
202 KASSERT(dev != NULL && dev->si_drv1 != NULL &&
| 249 struct snddev_info *d;
250 struct dsp_cdevinfo *cdi, *tmp;
251 uint32_t flags;
252 int i;
253
254 d = dsp_get_info(dev);
255
256 KASSERT(PCM_REGISTERED(d) && dev != NULL && dev->si_drv1 != NULL &&
|
203 PCM_RDCH(dev) == NULL && PCM_WRCH(dev) == NULL,
204 ("bogus %s(), what are you trying to accomplish here?", __func__));
| 257 PCM_RDCH(dev) == NULL && PCM_WRCH(dev) == NULL,
258 ("bogus %s(), what are you trying to accomplish here?", __func__));
|
| 259 PCM_BUSYASSERT(d);
260 mtx_assert(d->lock, MA_OWNED);
|
205
| 261
|
206 free(dev->si_drv1, M_DEVBUF);
| 262 cdi = dev->si_drv1;
|
207 dev->si_drv1 = NULL;
| 263 dev->si_drv1 = NULL;
|
| 264 cdi->rdch = NULL;
265 cdi->wrch = NULL;
266 cdi->simplex = 0;
267 cdi->busy = 0;
268
269 /*
270 * Once it is free, move it back to the beginning of list for
271 * faster new entry allocation.
272 */
273 TAILQ_REMOVE(&d->dsp_cdevinfo_pool, cdi, link);
274 TAILQ_INSERT_HEAD(&d->dsp_cdevinfo_pool, cdi, link);
275
276 /*
277 * Scan the list, cache free entries up to DSP_CDEVINFO_CACHESIZE.
278 * Reset simplex flags.
279 */
280 flags = dsp_get_flags(dev) & ~SD_F_PRIO_SET;
281 i = DSP_CDEVINFO_CACHESIZE;
282 TAILQ_FOREACH_SAFE(cdi, &d->dsp_cdevinfo_pool, link, tmp) {
283 if (cdi->busy != 0) {
284 if (cdi->simplex == 0) {
285 if (cdi->rdch != NULL)
286 flags |= SD_F_PRIO_RD;
287 if (cdi->wrch != NULL)
288 flags |= SD_F_PRIO_WR;
289 }
290 } else {
291 if (i == 0) {
292 TAILQ_REMOVE(&d->dsp_cdevinfo_pool, cdi, link);
293 free(cdi, M_DEVBUF);
294 } else
295 i--;
296 }
297 }
298 dsp_set_flags(dev, flags);
|
208}
209
| 299}
300
|
| 301void
302dsp_cdevinfo_init(struct snddev_info *d)
303{
304 struct dsp_cdevinfo *cdi;
305 int i;
306
307 KASSERT(d != NULL, ("NULL snddev_info"));
308 PCM_BUSYASSERT(d);
309 mtx_assert(d->lock, MA_NOTOWNED);
310
311 TAILQ_INIT(&d->dsp_cdevinfo_pool);
312 for (i = 0; i < DSP_CDEVINFO_CACHESIZE; i++) {
313 cdi = malloc(sizeof(*cdi), M_DEVBUF, M_WAITOK | M_ZERO);
314 TAILQ_INSERT_HEAD(&d->dsp_cdevinfo_pool, cdi, link);
315 }
316}
317
318void
319dsp_cdevinfo_flush(struct snddev_info *d)
320{
321 struct dsp_cdevinfo *cdi, *tmp;
322
323 KASSERT(d != NULL, ("NULL snddev_info"));
324 PCM_BUSYASSERT(d);
325 mtx_assert(d->lock, MA_NOTOWNED);
326
327 cdi = TAILQ_FIRST(&d->dsp_cdevinfo_pool);
328 while (cdi != NULL) {
329 tmp = TAILQ_NEXT(cdi, link);
330 free(cdi, M_DEVBUF);
331 cdi = tmp;
332 }
333 TAILQ_INIT(&d->dsp_cdevinfo_pool);
334}
335
|
210/* duplex / simplex cdev type */
211enum {
212 DSP_CDEV_TYPE_RDONLY, /* simplex read-only (record) */
213 DSP_CDEV_TYPE_WRONLY, /* simplex write-only (play) */
214 DSP_CDEV_TYPE_RDWR, /* duplex read, write, or both */
215};
216
217#define DSP_F_VALID(x) ((x) & (FREAD | FWRITE))
218#define DSP_F_DUPLEX(x) (((x) & (FREAD | FWRITE)) == (FREAD | FWRITE))
219#define DSP_F_SIMPLEX(x) (!DSP_F_DUPLEX(x))
220#define DSP_F_READ(x) ((x) & FREAD)
221#define DSP_F_WRITE(x) ((x) & FWRITE)
222
223static const struct {
224 int type;
225 char *name;
226 char *sep;
227 int use_sep;
228 int hw;
229 int max;
230 uint32_t fmt, spd;
231 int query;
232} dsp_cdevs[] = {
233 { SND_DEV_DSP, "dsp", ".", 0, 0, 0,
234 AFMT_U8, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
235 { SND_DEV_AUDIO, "audio", ".", 0, 0, 0,
236 AFMT_MU_LAW, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
237 { SND_DEV_DSP16, "dspW", ".", 0, 0, 0,
238 AFMT_S16_LE, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
239 { SND_DEV_DSPHW_PLAY, "dsp", ".p", 1, 1, SND_MAXHWCHAN,
240 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_WRONLY },
241 { SND_DEV_DSPHW_VPLAY, "dsp", ".vp", 1, 1, SND_MAXVCHANS,
242 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_WRONLY },
243 { SND_DEV_DSPHW_REC, "dsp", ".r", 1, 1, SND_MAXHWCHAN,
244 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_RDONLY },
245 { SND_DEV_DSPHW_VREC, "dsp", ".vr", 1, 1, SND_MAXVCHANS,
246 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_RDONLY },
| 336/* duplex / simplex cdev type */
337enum {
338 DSP_CDEV_TYPE_RDONLY, /* simplex read-only (record) */
339 DSP_CDEV_TYPE_WRONLY, /* simplex write-only (play) */
340 DSP_CDEV_TYPE_RDWR, /* duplex read, write, or both */
341};
342
343#define DSP_F_VALID(x) ((x) & (FREAD | FWRITE))
344#define DSP_F_DUPLEX(x) (((x) & (FREAD | FWRITE)) == (FREAD | FWRITE))
345#define DSP_F_SIMPLEX(x) (!DSP_F_DUPLEX(x))
346#define DSP_F_READ(x) ((x) & FREAD)
347#define DSP_F_WRITE(x) ((x) & FWRITE)
348
349static const struct {
350 int type;
351 char *name;
352 char *sep;
353 int use_sep;
354 int hw;
355 int max;
356 uint32_t fmt, spd;
357 int query;
358} dsp_cdevs[] = {
359 { SND_DEV_DSP, "dsp", ".", 0, 0, 0,
360 AFMT_U8, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
361 { SND_DEV_AUDIO, "audio", ".", 0, 0, 0,
362 AFMT_MU_LAW, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
363 { SND_DEV_DSP16, "dspW", ".", 0, 0, 0,
364 AFMT_S16_LE, DSP_DEFAULT_SPEED, DSP_CDEV_TYPE_RDWR },
365 { SND_DEV_DSPHW_PLAY, "dsp", ".p", 1, 1, SND_MAXHWCHAN,
366 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_WRONLY },
367 { SND_DEV_DSPHW_VPLAY, "dsp", ".vp", 1, 1, SND_MAXVCHANS,
368 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_WRONLY },
369 { SND_DEV_DSPHW_REC, "dsp", ".r", 1, 1, SND_MAXHWCHAN,
370 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_RDONLY },
371 { SND_DEV_DSPHW_VREC, "dsp", ".vr", 1, 1, SND_MAXVCHANS,
372 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_RDONLY },
|
| 373 { SND_DEV_DSPHW_CD, "dspcd", ".", 0, 0, 0,
374 AFMT_S16_LE | AFMT_STEREO, 44100, DSP_CDEV_TYPE_RDWR },
375 { SND_DEV_DSP_MMAP, "dsp_mmap", ".", 0, 0, 0,
376 AFMT_S16_LE | AFMT_STEREO, 48000, DSP_CDEV_TYPE_RDWR },
|
247};
248
| 377};
378
|
| 379#define DSP_FIXUP_ERROR() do { \
380 prio = dsp_get_flags(i_dev); \
381 if (!DSP_F_VALID(flags)) \
382 error = EINVAL; \
383 if (!DSP_F_DUPLEX(flags) && \
384 ((DSP_F_READ(flags) && d->reccount == 0) || \
385 (DSP_F_WRITE(flags) && d->playcount == 0))) \
386 error = ENOTSUP; \
387 else if (!DSP_F_DUPLEX(flags) && (prio & SD_F_SIMPLEX) && \
388 ((DSP_F_READ(flags) && (prio & SD_F_PRIO_WR)) || \
389 (DSP_F_WRITE(flags) && (prio & SD_F_PRIO_RD)))) \
390 error = EBUSY; \
391 else if (DSP_REGISTERED(d, i_dev)) \
392 error = EBUSY; \
393} while(0)
394
|
249static int
250dsp_open(struct cdev *i_dev, int flags, int mode, struct thread *td)
251{
252 struct pcm_channel *rdch, *wrch;
253 struct snddev_info *d;
| 395static int
396dsp_open(struct cdev *i_dev, int flags, int mode, struct thread *td)
397{
398 struct pcm_channel *rdch, *wrch;
399 struct snddev_info *d;
|
254 uint32_t fmt, spd;
255 int i, error, devtype;
256 int wdevunit, rdevunit;
| 400 uint32_t fmt, spd, prio;
401 int i, error, rderror, wrerror, devtype, wdevunit, rdevunit;
|
257
258 /* Kind of impossible.. */
259 if (i_dev == NULL || td == NULL)
| 402
403 /* Kind of impossible.. */
404 if (i_dev == NULL || td == NULL)
|
260 return ENODEV;
| 405 return (ENODEV);
|
261
| 406
|
262 /* This too.. */
| |
263 d = dsp_get_info(i_dev);
| 407 d = dsp_get_info(i_dev);
|
264 if (d == NULL)
265 return EBADF;
| 408 if (!PCM_REGISTERED(d))
409 return (EBADF);
|
266
| 410
|
| 411 PCM_GIANT_ENTER(d);
412
|
267 /* Lock snddev so nobody else can monkey with it. */
268 pcm_lock(d);
| 413 /* Lock snddev so nobody else can monkey with it. */
414 pcm_lock(d);
|
| 415 PCM_WAIT(d);
|
269
270 /*
271 * Try to acquire cloned device before someone else pick it.
272 * ENODEV means this is not a cloned droids.
273 */
274 error = snd_clone_acquire(i_dev);
275 if (!(error == 0 || error == ENODEV)) {
| 416
417 /*
418 * Try to acquire cloned device before someone else pick it.
419 * ENODEV means this is not a cloned droids.
420 */
421 error = snd_clone_acquire(i_dev);
422 if (!(error == 0 || error == ENODEV)) {
|
| 423 DSP_FIXUP_ERROR();
|
276 pcm_unlock(d);
| 424 pcm_unlock(d);
|
277 return error;
| 425 PCM_GIANT_EXIT(d);
426 return (error);
|
278 }
279
| 427 }
428
|
280 if (!DSP_F_VALID(flags))
281 error = EINVAL;
282 else if (i_dev->si_drv1 != NULL)
283 error = EBUSY;
284 else if (DSP_F_DUPLEX(flags) &&
285 (dsp_get_flags(i_dev) & SD_F_SIMPLEX))
286 error = ENOTSUP;
287 else
288 error = 0;
| 429 error = 0;
430 DSP_FIXUP_ERROR();
|
289
290 if (error != 0) {
291 (void)snd_clone_release(i_dev);
292 pcm_unlock(d);
| 431
432 if (error != 0) {
433 (void)snd_clone_release(i_dev);
434 pcm_unlock(d);
|
293 return error;
| 435 PCM_GIANT_EXIT(d);
436 return (error);
|
294 }
295
296 /*
| 437 }
438
439 /*
|
297 * Fake busy state by pointing si_drv1 to something else since
298 * we have to give up locking somewhere during setup process.
| 440 * That is just enough. Acquire and unlock pcm lock so
441 * the other will just have to wait until we finish doing
442 * everything.
|
299 */
| 443 */
|
300 PCMDEV_ACQUIRE(i_dev);
| 444 PCM_ACQUIRE(d);
445 pcm_unlock(d);
|
301
302 devtype = PCMDEV(i_dev);
303 wdevunit = -1;
304 rdevunit = -1;
305 fmt = 0;
306 spd = 0;
307
308 for (i = 0; i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])); i++) {
309 if (devtype != dsp_cdevs[i].type)
310 continue;
311 if (DSP_F_SIMPLEX(flags) &&
312 ((dsp_cdevs[i].query == DSP_CDEV_TYPE_WRONLY &&
313 DSP_F_READ(flags)) ||
314 (dsp_cdevs[i].query == DSP_CDEV_TYPE_RDONLY &&
315 DSP_F_WRITE(flags)))) {
316 /*
317 * simplex, opposite direction? Please be gone..
318 */
319 (void)snd_clone_release(i_dev);
| 446
447 devtype = PCMDEV(i_dev);
448 wdevunit = -1;
449 rdevunit = -1;
450 fmt = 0;
451 spd = 0;
452
453 for (i = 0; i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])); i++) {
454 if (devtype != dsp_cdevs[i].type)
455 continue;
456 if (DSP_F_SIMPLEX(flags) &&
457 ((dsp_cdevs[i].query == DSP_CDEV_TYPE_WRONLY &&
458 DSP_F_READ(flags)) ||
459 (dsp_cdevs[i].query == DSP_CDEV_TYPE_RDONLY &&
460 DSP_F_WRITE(flags)))) {
461 /*
462 * simplex, opposite direction? Please be gone..
463 */
464 (void)snd_clone_release(i_dev);
|
320 PCMDEV_RELEASE(i_dev);
321 pcm_unlock(d);
322 return ENOTSUP;
| 465 PCM_RELEASE_QUICK(d);
466 PCM_GIANT_EXIT(d);
467 return (ENOTSUP);
|
323 }
324 if (dsp_cdevs[i].query == DSP_CDEV_TYPE_WRONLY)
325 wdevunit = dev2unit(i_dev);
326 else if (dsp_cdevs[i].query == DSP_CDEV_TYPE_RDONLY)
327 rdevunit = dev2unit(i_dev);
328 fmt = dsp_cdevs[i].fmt;
329 spd = dsp_cdevs[i].spd;
330 break;
331 }
332
333 /* No matching devtype? */
334 if (fmt == 0 || spd == 0)
335 panic("impossible devtype %d", devtype);
336
337 rdch = NULL;
338 wrch = NULL;
| 468 }
469 if (dsp_cdevs[i].query == DSP_CDEV_TYPE_WRONLY)
470 wdevunit = dev2unit(i_dev);
471 else if (dsp_cdevs[i].query == DSP_CDEV_TYPE_RDONLY)
472 rdevunit = dev2unit(i_dev);
473 fmt = dsp_cdevs[i].fmt;
474 spd = dsp_cdevs[i].spd;
475 break;
476 }
477
478 /* No matching devtype? */
479 if (fmt == 0 || spd == 0)
480 panic("impossible devtype %d", devtype);
481
482 rdch = NULL;
483 wrch = NULL;
|
| 484 rderror = 0;
485 wrerror = 0;
|
339
340 /*
341 * if we get here, the open request is valid- either:
342 * * we were previously not open
343 * * we were open for play xor record and the opener wants
344 * the non-open direction
345 */
346 if (DSP_F_READ(flags)) {
347 /* open for read */
| 486
487 /*
488 * if we get here, the open request is valid- either:
489 * * we were previously not open
490 * * we were open for play xor record and the opener wants
491 * the non-open direction
492 */
493 if (DSP_F_READ(flags)) {
494 /* open for read */
|
348 pcm_unlock(d);
349 error = pcm_chnalloc(d, &rdch, PCMDIR_REC, td->td_proc->p_pid,
350 rdevunit);
| 495 rderror = pcm_chnalloc(d, &rdch, PCMDIR_REC,
496 td->td_proc->p_pid, rdevunit);
|
351
| 497
|
352 if (error == 0 && (chn_reset(rdch, fmt) != 0 ||
| 498 if (rderror == 0 && (chn_reset(rdch, fmt) != 0 ||
|
353 (chn_setspeed(rdch, spd) != 0)))
| 499 (chn_setspeed(rdch, spd) != 0)))
|
354 error = ENODEV;
| 500 rderror = ENXIO;
|
355
| 501
|
356 if (error != 0) {
| 502 if (rderror != 0) {
|
357 if (rdch != NULL)
358 pcm_chnrelease(rdch);
| 503 if (rdch != NULL)
504 pcm_chnrelease(rdch);
|
359 pcm_lock(d);
360 (void)snd_clone_release(i_dev);
361 PCMDEV_RELEASE(i_dev);
362 pcm_unlock(d);
363 return error;
| 505 if (!DSP_F_DUPLEX(flags)) {
506 (void)snd_clone_release(i_dev);
507 PCM_RELEASE_QUICK(d);
508 PCM_GIANT_EXIT(d);
509 return (rderror);
510 }
511 rdch = NULL;
512 } else {
513 if (flags & O_NONBLOCK)
514 rdch->flags |= CHN_F_NBIO;
515 pcm_chnref(rdch, 1);
516 CHN_UNLOCK(rdch);
|
364 }
| 517 }
|
365
366 if (flags & O_NONBLOCK)
367 rdch->flags |= CHN_F_NBIO;
368 pcm_chnref(rdch, 1);
369 CHN_UNLOCK(rdch);
370 pcm_lock(d);
| |
371 }
372
373 if (DSP_F_WRITE(flags)) {
374 /* open for write */
| 518 }
519
520 if (DSP_F_WRITE(flags)) {
521 /* open for write */
|
375 pcm_unlock(d);
376 error = pcm_chnalloc(d, &wrch, PCMDIR_PLAY, td->td_proc->p_pid,
377 wdevunit);
| 522 wrerror = pcm_chnalloc(d, &wrch, PCMDIR_PLAY,
523 td->td_proc->p_pid, wdevunit);
|
378
| 524
|
379 if (error == 0 && (chn_reset(wrch, fmt) != 0 ||
| 525 if (wrerror == 0 && (chn_reset(wrch, fmt) != 0 ||
|
380 (chn_setspeed(wrch, spd) != 0)))
| 526 (chn_setspeed(wrch, spd) != 0)))
|
381 error = ENODEV;
| 527 wrerror = ENXIO;
|
382
| 528
|
383 if (error != 0) {
| 529 if (wrerror != 0) {
|
384 if (wrch != NULL)
385 pcm_chnrelease(wrch);
| 530 if (wrch != NULL)
531 pcm_chnrelease(wrch);
|
386 if (rdch != NULL) {
387 /*
388 * Lock, deref and release previously
389 * created record channel
390 */
391 CHN_LOCK(rdch);
392 pcm_chnref(rdch, -1);
393 pcm_chnrelease(rdch);
| 532 if (!DSP_F_DUPLEX(flags)) {
533 if (rdch != NULL) {
534 /*
535 * Lock, deref and release previously
536 * created record channel
537 */
538 CHN_LOCK(rdch);
539 pcm_chnref(rdch, -1);
540 pcm_chnrelease(rdch);
541 }
542 (void)snd_clone_release(i_dev);
543 PCM_RELEASE_QUICK(d);
544 PCM_GIANT_EXIT(d);
545 return (wrerror);
|
394 }
| 546 }
|
395 pcm_lock(d);
396 (void)snd_clone_release(i_dev);
397 PCMDEV_RELEASE(i_dev);
398 pcm_unlock(d);
399 return error;
| 547 wrch = NULL;
548 } else {
549 if (flags & O_NONBLOCK)
550 wrch->flags |= CHN_F_NBIO;
551 pcm_chnref(wrch, 1);
552 CHN_UNLOCK(wrch);
|
400 }
| 553 }
|
| 554 }
|
401
| 555
|
402 if (flags & O_NONBLOCK)
403 wrch->flags |= CHN_F_NBIO;
404 pcm_chnref(wrch, 1);
405 CHN_UNLOCK(wrch);
406 pcm_lock(d);
| 556 if (rdch == NULL && wrch == NULL) {
557 (void)snd_clone_release(i_dev);
558 PCM_RELEASE_QUICK(d);
559 PCM_GIANT_EXIT(d);
560 return ((wrerror != 0) ? wrerror : rderror);
|
407 }
408
| 561 }
562
|
| 563 pcm_lock(d);
564
|
409 /*
| 565 /*
|
| 566 * We're done. Allocate channels information for this cdev.
567 */
568 dsp_cdevinfo_alloc(i_dev, rdch, wrch);
569
570 /*
|
410 * Increase clone refcount for its automatic garbage collector.
411 */
412 (void)snd_clone_ref(i_dev);
413
| 571 * Increase clone refcount for its automatic garbage collector.
572 */
573 (void)snd_clone_ref(i_dev);
574
|
| 575 PCM_RELEASE(d);
|
414 pcm_unlock(d);
415
| 576 pcm_unlock(d);
577
|
416 /*
417 * We're done. Allocate and point si_drv1 to a real
418 * allocated structure.
419 */
420 dsp_cdevinfo_alloc(i_dev, rdch, wrch);
| 578 PCM_GIANT_LEAVE(d);
|
421
| 579
|
422 return 0;
| 580 return (0);
|
423}
424
425static int
426dsp_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
427{
428 struct pcm_channel *rdch, *wrch;
429 struct snddev_info *d;
| 581}
582
583static int
584dsp_close(struct cdev *i_dev, int flags, int mode, struct thread *td)
585{
586 struct pcm_channel *rdch, *wrch;
587 struct snddev_info *d;
|
430 int refs, sg_ids[2];
| 588 int sg_ids, refs;
|
431
432 d = dsp_get_info(i_dev);
| 589
590 d = dsp_get_info(i_dev);
|
433 if (d == NULL)
434 return EBADF;
| 591 if (!DSP_REGISTERED(d, i_dev))
592 return (EBADF);
593
594 PCM_GIANT_ENTER(d);
595
|
435 pcm_lock(d);
| 596 pcm_lock(d);
|
| 597 PCM_WAIT(d);
598
|
436 rdch = PCM_RDCH(i_dev);
437 wrch = PCM_WRCH(i_dev);
438
| 599 rdch = PCM_RDCH(i_dev);
600 wrch = PCM_WRCH(i_dev);
601
|
439 /*
440 * Free_unr() may sleep, so store released syncgroup IDs until after
441 * all locks are released.
442 */
443 sg_ids[0] = sg_ids[1] = 0;
444
| |
445 if (rdch || wrch) {
| 602 if (rdch || wrch) {
|
446 refs = 0;
| 603 PCM_ACQUIRE(d);
|
447 pcm_unlock(d);
| 604 pcm_unlock(d);
|
| 605
606 refs = 0;
|
448 if (rdch) {
449 /*
450 * The channel itself need not be locked because:
451 * a) Adding a channel to a syncgroup happens only in dsp_ioctl(),
452 * which cannot run concurrently to dsp_close().
453 * b) The syncmember pointer (sm) is protected by the global
454 * syncgroup list lock.
455 * c) A channel can't just disappear, invalidating pointers,
456 * unless it's closed/dereferenced first.
457 */
458 PCM_SG_LOCK();
| 607 if (rdch) {
608 /*
609 * The channel itself need not be locked because:
610 * a) Adding a channel to a syncgroup happens only in dsp_ioctl(),
611 * which cannot run concurrently to dsp_close().
612 * b) The syncmember pointer (sm) is protected by the global
613 * syncgroup list lock.
614 * c) A channel can't just disappear, invalidating pointers,
615 * unless it's closed/dereferenced first.
616 */
617 PCM_SG_LOCK();
|
459 sg_ids[0] = chn_syncdestroy(rdch);
| 618 sg_ids = chn_syncdestroy(rdch);
|
460 PCM_SG_UNLOCK();
| 619 PCM_SG_UNLOCK();
|
| 620 if (sg_ids != 0)
621 free_unr(pcmsg_unrhdr, sg_ids);
|
461
462 CHN_LOCK(rdch);
463 refs += pcm_chnref(rdch, -1);
464 chn_abort(rdch); /* won't sleep */
465 rdch->flags &= ~(CHN_F_RUNNING | CHN_F_MAPPED | CHN_F_DEAD);
466 chn_reset(rdch, 0);
467 pcm_chnrelease(rdch);
| 622
623 CHN_LOCK(rdch);
624 refs += pcm_chnref(rdch, -1);
625 chn_abort(rdch); /* won't sleep */
626 rdch->flags &= ~(CHN_F_RUNNING | CHN_F_MAPPED | CHN_F_DEAD);
627 chn_reset(rdch, 0);
628 pcm_chnrelease(rdch);
|
| 629 PCM_RDCH(i_dev) = NULL;
|
468 }
469 if (wrch) {
470 /*
471 * Please see block above.
472 */
473 PCM_SG_LOCK();
| 630 }
631 if (wrch) {
632 /*
633 * Please see block above.
634 */
635 PCM_SG_LOCK();
|
474 sg_ids[1] = chn_syncdestroy(wrch);
| 636 sg_ids = chn_syncdestroy(wrch);
|
475 PCM_SG_UNLOCK();
| 637 PCM_SG_UNLOCK();
|
| 638 if (sg_ids != 0)
639 free_unr(pcmsg_unrhdr, sg_ids);
|
476
477 CHN_LOCK(wrch);
478 refs += pcm_chnref(wrch, -1);
479 chn_flush(wrch); /* may sleep */
480 wrch->flags &= ~(CHN_F_RUNNING | CHN_F_MAPPED | CHN_F_DEAD);
481 chn_reset(wrch, 0);
482 pcm_chnrelease(wrch);
| 640
641 CHN_LOCK(wrch);
642 refs += pcm_chnref(wrch, -1);
643 chn_flush(wrch); /* may sleep */
644 wrch->flags &= ~(CHN_F_RUNNING | CHN_F_MAPPED | CHN_F_DEAD);
645 chn_reset(wrch, 0);
646 pcm_chnrelease(wrch);
|
| 647 PCM_WRCH(i_dev) = NULL;
|
483 }
484
485 pcm_lock(d);
| 648 }
649
650 pcm_lock(d);
|
486 if (rdch)
487 PCM_RDCH(i_dev) = NULL;
488 if (wrch)
489 PCM_WRCH(i_dev) = NULL;
| |
490 /*
491 * If there are no more references, release the channels.
492 */
493 if (refs == 0 && PCM_RDCH(i_dev) == NULL &&
494 PCM_WRCH(i_dev) == NULL) {
| 651 /*
652 * If there are no more references, release the channels.
653 */
654 if (refs == 0 && PCM_RDCH(i_dev) == NULL &&
655 PCM_WRCH(i_dev) == NULL) {
|
495 if (pcm_getfakechan(d))
496 pcm_getfakechan(d)->flags = 0;
497 /* What is this?!? */
498 dsp_set_flags(i_dev, dsp_get_flags(i_dev) & ~SD_F_TRANSIENT);
| |
499 dsp_cdevinfo_free(i_dev);
500 /*
501 * Release clone busy state and unref it
502 * so the automatic garbage collector will
503 * get the hint and do the remaining cleanup
504 * process.
505 */
506 (void)snd_clone_release(i_dev);
507 (void)snd_clone_unref(i_dev);
508 }
| 656 dsp_cdevinfo_free(i_dev);
657 /*
658 * Release clone busy state and unref it
659 * so the automatic garbage collector will
660 * get the hint and do the remaining cleanup
661 * process.
662 */
663 (void)snd_clone_release(i_dev);
664 (void)snd_clone_unref(i_dev);
665 }
|
| 666 PCM_RELEASE(d);
|
509 }
510
511 pcm_unlock(d);
512
| 667 }
668
669 pcm_unlock(d);
670
|
513 if (sg_ids[0])
514 free_unr(pcmsg_unrhdr, sg_ids[0]);
515 if (sg_ids[1])
516 free_unr(pcmsg_unrhdr, sg_ids[1]);
| 671 PCM_GIANT_LEAVE(d);
|
517
| 672
|
518 return 0;
| 673 return (0);
|
519}
520
| 674}
675
|
521static int
522dsp_read(struct cdev *i_dev, struct uio *buf, int flag)
| 676static __inline int
677dsp_io_ops(struct cdev *i_dev, struct uio *buf)
|
523{
| 678{
|
524 struct pcm_channel *rdch, *wrch;
525 int ret;
| 679 struct snddev_info *d;
680 struct pcm_channel **ch, *rdch, *wrch;
681 int (*chn_io)(struct pcm_channel *, struct uio *);
682 int prio, ret;
683 pid_t runpid;
|
526
| 684
|
527 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_RD);
| 685 KASSERT(i_dev != NULL && buf != NULL &&
686 (buf->uio_rw == UIO_READ || buf->uio_rw == UIO_WRITE),
687 ("%s(): io train wreck!", __func__));
|
528
| 688
|
529 if (rdch == NULL || !(rdch->flags & CHN_F_BUSY))
530 return EBADF;
| 689 d = dsp_get_info(i_dev);
690 if (!DSP_REGISTERED(d, i_dev))
691 return (EBADF);
|
531
| 692
|
532 if (rdch->flags & (CHN_F_MAPPED | CHN_F_DEAD)) {
533 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD);
534 return EINVAL;
| 693 PCM_GIANT_ENTER(d);
694
695 switch (buf->uio_rw) {
696 case UIO_READ:
697 prio = SD_F_PRIO_RD;
698 ch = &rdch;
699 chn_io = chn_read;
700 break;
701 case UIO_WRITE:
702 prio = SD_F_PRIO_WR;
703 ch = &wrch;
704 chn_io = chn_write;
705 break;
706 default:
707 panic("invalid/corrupted uio direction: %d", buf->uio_rw);
708 break;
|
535 }
| 709 }
|
536 if (!(rdch->flags & CHN_F_RUNNING))
537 rdch->flags |= CHN_F_RUNNING;
538 ret = chn_read(rdch, buf);
539 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD);
| |
540
| 710
|
541 return ret;
542}
| 711 rdch = NULL;
712 wrch = NULL;
713 runpid = buf->uio_td->td_proc->p_pid;
|
543
| 714
|
544static int
545dsp_write(struct cdev *i_dev, struct uio *buf, int flag)
546{
547 struct pcm_channel *rdch, *wrch;
548 int ret;
| 715 getchns(i_dev, &rdch, &wrch, prio);
|
549
| 716
|
550 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_WR);
| 717 if (*ch == NULL || !((*ch)->flags & CHN_F_BUSY)) {
718 PCM_GIANT_EXIT(d);
719 return (EBADF);
720 }
|
551
| 721
|
552 if (wrch == NULL || !(wrch->flags & CHN_F_BUSY))
553 return EBADF;
554
555 if (wrch->flags & (CHN_F_MAPPED | CHN_F_DEAD)) {
556 relchns(i_dev, rdch, wrch, SD_F_PRIO_WR);
557 return EINVAL;
| 722 if (((*ch)->flags & (CHN_F_MAPPED | CHN_F_DEAD)) ||
723 (((*ch)->flags & CHN_F_RUNNING) && (*ch)->pid != runpid)) {
724 relchns(i_dev, rdch, wrch, prio);
725 PCM_GIANT_EXIT(d);
726 return (EINVAL);
727 } else if (!((*ch)->flags & CHN_F_RUNNING)) {
728 (*ch)->flags |= CHN_F_RUNNING;
729 (*ch)->pid = runpid;
|
558 }
| 730 }
|
559 if (!(wrch->flags & CHN_F_RUNNING))
560 wrch->flags |= CHN_F_RUNNING;
| |
561
562 /*
| 731
732 /*
|
563 * Chn_write() must give up channel lock in order to copy bytes from
564 * userland, so up the "in progress" counter to make sure someone
565 * else doesn't come along and muss up the buffer.
| 733 * chn_read/write must give up channel lock in order to copy bytes
734 * from/to userland, so up the "in progress" counter to make sure
735 * someone else doesn't come along and muss up the buffer.
|
566 */
| 736 */
|
567 ++wrch->inprog;
568 ret = chn_write(wrch, buf);
569 --wrch->inprog;
570 cv_signal(&wrch->cv);
| 737 ++(*ch)->inprog;
738 ret = chn_io(*ch, buf);
739 --(*ch)->inprog;
|
571
| 740
|
572 relchns(i_dev, rdch, wrch, SD_F_PRIO_WR);
| 741 CHN_BROADCAST(&(*ch)->cv);
|
573
| 742
|
574 return ret;
| 743 relchns(i_dev, rdch, wrch, prio);
744
745 PCM_GIANT_LEAVE(d);
746
747 return (ret);
|
575}
576
577static int
| 748}
749
750static int
|
| 751dsp_read(struct cdev *i_dev, struct uio *buf, int flag)
752{
753 return (dsp_io_ops(i_dev, buf));
754}
755
756static int
757dsp_write(struct cdev *i_dev, struct uio *buf, int flag)
758{
759 return (dsp_io_ops(i_dev, buf));
760}
761
762static int
|
578dsp_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td)
579{
580 struct pcm_channel *chn, *rdch, *wrch;
581 struct snddev_info *d;
| 763dsp_ioctl(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td)
764{
765 struct pcm_channel *chn, *rdch, *wrch;
766 struct snddev_info *d;
|
582 int kill;
583 int ret = 0, *arg_i = (int *)arg, tmp;
584 int xcmd;
| 767 int *arg_i, ret, kill, tmp, xcmd;
|
585
| 768
|
| 769 d = dsp_get_info(i_dev);
770 if (!DSP_REGISTERED(d, i_dev))
771 return (EBADF);
772
773 PCM_GIANT_ENTER(d);
774
775 arg_i = (int *)arg;
776 ret = 0;
|
586 xcmd = 0;
587
588 /*
589 * this is an evil hack to allow broken apps to perform mixer ioctls
590 * on dsp devices.
591 */
| 777 xcmd = 0;
778
779 /*
780 * this is an evil hack to allow broken apps to perform mixer ioctls
781 * on dsp devices.
782 */
|
592
593 d = dsp_get_info(i_dev);
594 if (d == NULL)
595 return EBADF;
| |
596 if (IOCGROUP(cmd) == 'M') {
597 /*
598 * This is at least, a bug to bug compatible with OSS.
599 */
| 783 if (IOCGROUP(cmd) == 'M') {
784 /*
785 * This is at least, a bug to bug compatible with OSS.
786 */
|
600 if (d->mixer_dev != NULL)
601 return mixer_ioctl(d->mixer_dev, cmd, arg, -1, td);
602 else
603 return EBADF;
| 787 if (d->mixer_dev != NULL) {
788 PCM_ACQUIRE_QUICK(d);
789 ret = mixer_ioctl_cmd(d->mixer_dev, cmd, arg, -1, td,
790 MIXER_CMD_DIRECT);
791 PCM_RELEASE_QUICK(d);
792 } else
793 ret = EBADF;
794
795 PCM_GIANT_EXIT(d);
796
797 return (ret);
|
604 }
605
606 /*
607 * Certain ioctls may be made on any type of device (audio, mixer,
608 * and MIDI). Handle those special cases here.
609 */
610 if (IOCGROUP(cmd) == 'X') {
| 798 }
799
800 /*
801 * Certain ioctls may be made on any type of device (audio, mixer,
802 * and MIDI). Handle those special cases here.
803 */
804 if (IOCGROUP(cmd) == 'X') {
|
| 805 PCM_ACQUIRE_QUICK(d);
|
611 switch(cmd) {
612 case SNDCTL_SYSINFO:
613 sound_oss_sysinfo((oss_sysinfo *)arg);
614 break;
615 case SNDCTL_AUDIOINFO:
616 ret = dsp_oss_audioinfo(i_dev, (oss_audioinfo *)arg);
617 break;
618 case SNDCTL_MIXERINFO:
619 ret = mixer_oss_mixerinfo(i_dev, (oss_mixerinfo *)arg);
620 break;
621 default:
622 ret = EINVAL;
623 }
| 806 switch(cmd) {
807 case SNDCTL_SYSINFO:
808 sound_oss_sysinfo((oss_sysinfo *)arg);
809 break;
810 case SNDCTL_AUDIOINFO:
811 ret = dsp_oss_audioinfo(i_dev, (oss_audioinfo *)arg);
812 break;
813 case SNDCTL_MIXERINFO:
814 ret = mixer_oss_mixerinfo(i_dev, (oss_mixerinfo *)arg);
815 break;
816 default:
817 ret = EINVAL;
818 }
|
624
625 return ret;
| 819 PCM_RELEASE_QUICK(d);
820 PCM_GIANT_EXIT(d);
821 return (ret);
|
626 }
627
628 getchns(i_dev, &rdch, &wrch, 0);
629
630 kill = 0;
631 if (wrch && (wrch->flags & CHN_F_DEAD))
632 kill |= 1;
633 if (rdch && (rdch->flags & CHN_F_DEAD))
634 kill |= 2;
635 if (kill == 3) {
636 relchns(i_dev, rdch, wrch, 0);
| 822 }
823
824 getchns(i_dev, &rdch, &wrch, 0);
825
826 kill = 0;
827 if (wrch && (wrch->flags & CHN_F_DEAD))
828 kill |= 1;
829 if (rdch && (rdch->flags & CHN_F_DEAD))
830 kill |= 2;
831 if (kill == 3) {
832 relchns(i_dev, rdch, wrch, 0);
|
637 return EINVAL;
| 833 PCM_GIANT_EXIT(d);
834 return (EINVAL);
|
638 }
639 if (kill & 1)
640 wrch = NULL;
641 if (kill & 2)
642 rdch = NULL;
643
| 835 }
836 if (kill & 1)
837 wrch = NULL;
838 if (kill & 2)
839 rdch = NULL;
840
|
| 841 if (wrch == NULL && rdch == NULL) {
842 relchns(i_dev, rdch, wrch, 0);
843 PCM_GIANT_EXIT(d);
844 return (EINVAL);
845 }
846
|
644 switch(cmd) {
645#ifdef OLDPCM_IOCTL
646 /*
647 * we start with the new ioctl interface.
648 */
649 case AIONWRITE: /* how many bytes can write ? */
650 if (wrch) {
651 CHN_LOCK(wrch);
652/*
653 if (wrch && wrch->bufhard.dl)
654 while (chn_wrfeed(wrch) == 0);
655*/
656 *arg_i = sndbuf_getfree(wrch->bufsoft);
657 CHN_UNLOCK(wrch);
658 } else {
659 *arg_i = 0;
660 ret = EINVAL;
661 }
662 break;
663
664 case AIOSSIZE: /* set the current blocksize */
665 {
666 struct snd_size *p = (struct snd_size *)arg;
667
668 p->play_size = 0;
669 p->rec_size = 0;
| 847 switch(cmd) {
848#ifdef OLDPCM_IOCTL
849 /*
850 * we start with the new ioctl interface.
851 */
852 case AIONWRITE: /* how many bytes can write ? */
853 if (wrch) {
854 CHN_LOCK(wrch);
855/*
856 if (wrch && wrch->bufhard.dl)
857 while (chn_wrfeed(wrch) == 0);
858*/
859 *arg_i = sndbuf_getfree(wrch->bufsoft);
860 CHN_UNLOCK(wrch);
861 } else {
862 *arg_i = 0;
863 ret = EINVAL;
864 }
865 break;
866
867 case AIOSSIZE: /* set the current blocksize */
868 {
869 struct snd_size *p = (struct snd_size *)arg;
870
871 p->play_size = 0;
872 p->rec_size = 0;
|
| 873 PCM_ACQUIRE_QUICK(d);
|
670 if (wrch) {
671 CHN_LOCK(wrch);
672 chn_setblocksize(wrch, 2, p->play_size);
673 p->play_size = sndbuf_getblksz(wrch->bufsoft);
674 CHN_UNLOCK(wrch);
675 }
676 if (rdch) {
677 CHN_LOCK(rdch);
678 chn_setblocksize(rdch, 2, p->rec_size);
679 p->rec_size = sndbuf_getblksz(rdch->bufsoft);
680 CHN_UNLOCK(rdch);
681 }
| 874 if (wrch) {
875 CHN_LOCK(wrch);
876 chn_setblocksize(wrch, 2, p->play_size);
877 p->play_size = sndbuf_getblksz(wrch->bufsoft);
878 CHN_UNLOCK(wrch);
879 }
880 if (rdch) {
881 CHN_LOCK(rdch);
882 chn_setblocksize(rdch, 2, p->rec_size);
883 p->rec_size = sndbuf_getblksz(rdch->bufsoft);
884 CHN_UNLOCK(rdch);
885 }
|
| 886 PCM_RELEASE_QUICK(d);
|
682 }
683 break;
684 case AIOGSIZE: /* get the current blocksize */
685 {
686 struct snd_size *p = (struct snd_size *)arg;
687
688 if (wrch) {
689 CHN_LOCK(wrch);
690 p->play_size = sndbuf_getblksz(wrch->bufsoft);
691 CHN_UNLOCK(wrch);
692 }
693 if (rdch) {
694 CHN_LOCK(rdch);
695 p->rec_size = sndbuf_getblksz(rdch->bufsoft);
696 CHN_UNLOCK(rdch);
697 }
698 }
699 break;
700
701 case AIOSFMT:
702 case AIOGFMT:
703 {
704 snd_chan_param *p = (snd_chan_param *)arg;
705
706 if (cmd == AIOSFMT &&
707 ((p->play_format != 0 && p->play_rate == 0) ||
708 (p->rec_format != 0 && p->rec_rate == 0))) {
709 ret = EINVAL;
710 break;
711 }
| 887 }
888 break;
889 case AIOGSIZE: /* get the current blocksize */
890 {
891 struct snd_size *p = (struct snd_size *)arg;
892
893 if (wrch) {
894 CHN_LOCK(wrch);
895 p->play_size = sndbuf_getblksz(wrch->bufsoft);
896 CHN_UNLOCK(wrch);
897 }
898 if (rdch) {
899 CHN_LOCK(rdch);
900 p->rec_size = sndbuf_getblksz(rdch->bufsoft);
901 CHN_UNLOCK(rdch);
902 }
903 }
904 break;
905
906 case AIOSFMT:
907 case AIOGFMT:
908 {
909 snd_chan_param *p = (snd_chan_param *)arg;
910
911 if (cmd == AIOSFMT &&
912 ((p->play_format != 0 && p->play_rate == 0) ||
913 (p->rec_format != 0 && p->rec_rate == 0))) {
914 ret = EINVAL;
915 break;
916 }
|
| 917 PCM_ACQUIRE_QUICK(d);
|
712 if (wrch) {
713 CHN_LOCK(wrch);
714 if (cmd == AIOSFMT && p->play_format != 0) {
715 chn_setformat(wrch, p->play_format);
716 chn_setspeed(wrch, p->play_rate);
717 }
718 p->play_rate = wrch->speed;
719 p->play_format = wrch->format;
720 CHN_UNLOCK(wrch);
721 } else {
722 p->play_rate = 0;
723 p->play_format = 0;
724 }
725 if (rdch) {
726 CHN_LOCK(rdch);
727 if (cmd == AIOSFMT && p->rec_format != 0) {
728 chn_setformat(rdch, p->rec_format);
729 chn_setspeed(rdch, p->rec_rate);
730 }
731 p->rec_rate = rdch->speed;
732 p->rec_format = rdch->format;
733 CHN_UNLOCK(rdch);
734 } else {
735 p->rec_rate = 0;
736 p->rec_format = 0;
737 }
| 918 if (wrch) {
919 CHN_LOCK(wrch);
920 if (cmd == AIOSFMT && p->play_format != 0) {
921 chn_setformat(wrch, p->play_format);
922 chn_setspeed(wrch, p->play_rate);
923 }
924 p->play_rate = wrch->speed;
925 p->play_format = wrch->format;
926 CHN_UNLOCK(wrch);
927 } else {
928 p->play_rate = 0;
929 p->play_format = 0;
930 }
931 if (rdch) {
932 CHN_LOCK(rdch);
933 if (cmd == AIOSFMT && p->rec_format != 0) {
934 chn_setformat(rdch, p->rec_format);
935 chn_setspeed(rdch, p->rec_rate);
936 }
937 p->rec_rate = rdch->speed;
938 p->rec_format = rdch->format;
939 CHN_UNLOCK(rdch);
940 } else {
941 p->rec_rate = 0;
942 p->rec_format = 0;
943 }
|
| 944 PCM_RELEASE_QUICK(d);
|
738 }
739 break;
740
741 case AIOGCAP: /* get capabilities */
742 {
743 snd_capabilities *p = (snd_capabilities *)arg;
744 struct pcmchan_caps *pcaps = NULL, *rcaps = NULL;
745 struct cdev *pdev;
746
| 945 }
946 break;
947
948 case AIOGCAP: /* get capabilities */
949 {
950 snd_capabilities *p = (snd_capabilities *)arg;
951 struct pcmchan_caps *pcaps = NULL, *rcaps = NULL;
952 struct cdev *pdev;
953
|
| 954 pcm_lock(d);
|
747 if (rdch) {
748 CHN_LOCK(rdch);
749 rcaps = chn_getcaps(rdch);
750 }
751 if (wrch) {
752 CHN_LOCK(wrch);
753 pcaps = chn_getcaps(wrch);
754 }
755 p->rate_min = max(rcaps? rcaps->minspeed : 0,
756 pcaps? pcaps->minspeed : 0);
757 p->rate_max = min(rcaps? rcaps->maxspeed : 1000000,
758 pcaps? pcaps->maxspeed : 1000000);
759 p->bufsize = min(rdch? sndbuf_getsize(rdch->bufsoft) : 1000000,
760 wrch? sndbuf_getsize(wrch->bufsoft) : 1000000);
761 /* XXX bad on sb16 */
762 p->formats = (rdch? chn_getformats(rdch) : 0xffffffff) &
763 (wrch? chn_getformats(wrch) : 0xffffffff);
764 if (rdch && wrch)
765 p->formats |= (dsp_get_flags(i_dev) & SD_F_SIMPLEX)? 0 : AFMT_FULLDUPLEX;
766 pdev = d->mixer_dev;
767 p->mixers = 1; /* default: one mixer */
768 p->inputs = pdev->si_drv1? mix_getdevs(pdev->si_drv1) : 0;
769 p->left = p->right = 100;
| 955 if (rdch) {
956 CHN_LOCK(rdch);
957 rcaps = chn_getcaps(rdch);
958 }
959 if (wrch) {
960 CHN_LOCK(wrch);
961 pcaps = chn_getcaps(wrch);
962 }
963 p->rate_min = max(rcaps? rcaps->minspeed : 0,
964 pcaps? pcaps->minspeed : 0);
965 p->rate_max = min(rcaps? rcaps->maxspeed : 1000000,
966 pcaps? pcaps->maxspeed : 1000000);
967 p->bufsize = min(rdch? sndbuf_getsize(rdch->bufsoft) : 1000000,
968 wrch? sndbuf_getsize(wrch->bufsoft) : 1000000);
969 /* XXX bad on sb16 */
970 p->formats = (rdch? chn_getformats(rdch) : 0xffffffff) &
971 (wrch? chn_getformats(wrch) : 0xffffffff);
972 if (rdch && wrch)
973 p->formats |= (dsp_get_flags(i_dev) & SD_F_SIMPLEX)? 0 : AFMT_FULLDUPLEX;
974 pdev = d->mixer_dev;
975 p->mixers = 1; /* default: one mixer */
976 p->inputs = pdev->si_drv1? mix_getdevs(pdev->si_drv1) : 0;
977 p->left = p->right = 100;
|
770 if (rdch)
771 CHN_UNLOCK(rdch);
| |
772 if (wrch)
773 CHN_UNLOCK(wrch);
| 978 if (wrch)
979 CHN_UNLOCK(wrch);
|
| 980 if (rdch)
981 CHN_UNLOCK(rdch);
982 pcm_unlock(d);
|
774 }
775 break;
776
777 case AIOSTOP:
778 if (*arg_i == AIOSYNC_PLAY && wrch) {
779 CHN_LOCK(wrch);
780 *arg_i = chn_abort(wrch);
781 CHN_UNLOCK(wrch);
782 } else if (*arg_i == AIOSYNC_CAPTURE && rdch) {
783 CHN_LOCK(rdch);
784 *arg_i = chn_abort(rdch);
785 CHN_UNLOCK(rdch);
786 } else {
787 printf("AIOSTOP: bad channel 0x%x\n", *arg_i);
788 *arg_i = 0;
789 }
790 break;
791
792 case AIOSYNC:
793 printf("AIOSYNC chan 0x%03lx pos %lu unimplemented\n",
794 ((snd_sync_parm *)arg)->chan, ((snd_sync_parm *)arg)->pos);
795 break;
796#endif
797 /*
798 * here follow the standard ioctls (filio.h etc.)
799 */
800 case FIONREAD: /* get # bytes to read */
801 if (rdch) {
802 CHN_LOCK(rdch);
803/* if (rdch && rdch->bufhard.dl)
804 while (chn_rdfeed(rdch) == 0);
805*/
806 *arg_i = sndbuf_getready(rdch->bufsoft);
807 CHN_UNLOCK(rdch);
808 } else {
809 *arg_i = 0;
810 ret = EINVAL;
811 }
812 break;
813
814 case FIOASYNC: /*set/clear async i/o */
815 DEB( printf("FIOASYNC\n") ; )
816 break;
817
818 case SNDCTL_DSP_NONBLOCK: /* set non-blocking i/o */
819 case FIONBIO: /* set/clear non-blocking i/o */
820 if (rdch) {
821 CHN_LOCK(rdch);
822 if (cmd == SNDCTL_DSP_NONBLOCK || *arg_i)
823 rdch->flags |= CHN_F_NBIO;
824 else
825 rdch->flags &= ~CHN_F_NBIO;
826 CHN_UNLOCK(rdch);
827 }
828 if (wrch) {
829 CHN_LOCK(wrch);
830 if (cmd == SNDCTL_DSP_NONBLOCK || *arg_i)
831 wrch->flags |= CHN_F_NBIO;
832 else
833 wrch->flags &= ~CHN_F_NBIO;
834 CHN_UNLOCK(wrch);
835 }
836 break;
837
838 /*
839 * Finally, here is the linux-compatible ioctl interface
840 */
841#define THE_REAL_SNDCTL_DSP_GETBLKSIZE _IOWR('P', 4, int)
842 case THE_REAL_SNDCTL_DSP_GETBLKSIZE:
843 case SNDCTL_DSP_GETBLKSIZE:
844 chn = wrch ? wrch : rdch;
845 if (chn) {
846 CHN_LOCK(chn);
847 *arg_i = sndbuf_getblksz(chn->bufsoft);
848 CHN_UNLOCK(chn);
849 } else {
850 *arg_i = 0;
851 ret = EINVAL;
852 }
| 983 }
984 break;
985
986 case AIOSTOP:
987 if (*arg_i == AIOSYNC_PLAY && wrch) {
988 CHN_LOCK(wrch);
989 *arg_i = chn_abort(wrch);
990 CHN_UNLOCK(wrch);
991 } else if (*arg_i == AIOSYNC_CAPTURE && rdch) {
992 CHN_LOCK(rdch);
993 *arg_i = chn_abort(rdch);
994 CHN_UNLOCK(rdch);
995 } else {
996 printf("AIOSTOP: bad channel 0x%x\n", *arg_i);
997 *arg_i = 0;
998 }
999 break;
1000
1001 case AIOSYNC:
1002 printf("AIOSYNC chan 0x%03lx pos %lu unimplemented\n",
1003 ((snd_sync_parm *)arg)->chan, ((snd_sync_parm *)arg)->pos);
1004 break;
1005#endif
1006 /*
1007 * here follow the standard ioctls (filio.h etc.)
1008 */
1009 case FIONREAD: /* get # bytes to read */
1010 if (rdch) {
1011 CHN_LOCK(rdch);
1012/* if (rdch && rdch->bufhard.dl)
1013 while (chn_rdfeed(rdch) == 0);
1014*/
1015 *arg_i = sndbuf_getready(rdch->bufsoft);
1016 CHN_UNLOCK(rdch);
1017 } else {
1018 *arg_i = 0;
1019 ret = EINVAL;
1020 }
1021 break;
1022
1023 case FIOASYNC: /*set/clear async i/o */
1024 DEB( printf("FIOASYNC\n") ; )
1025 break;
1026
1027 case SNDCTL_DSP_NONBLOCK: /* set non-blocking i/o */
1028 case FIONBIO: /* set/clear non-blocking i/o */
1029 if (rdch) {
1030 CHN_LOCK(rdch);
1031 if (cmd == SNDCTL_DSP_NONBLOCK || *arg_i)
1032 rdch->flags |= CHN_F_NBIO;
1033 else
1034 rdch->flags &= ~CHN_F_NBIO;
1035 CHN_UNLOCK(rdch);
1036 }
1037 if (wrch) {
1038 CHN_LOCK(wrch);
1039 if (cmd == SNDCTL_DSP_NONBLOCK || *arg_i)
1040 wrch->flags |= CHN_F_NBIO;
1041 else
1042 wrch->flags &= ~CHN_F_NBIO;
1043 CHN_UNLOCK(wrch);
1044 }
1045 break;
1046
1047 /*
1048 * Finally, here is the linux-compatible ioctl interface
1049 */
1050#define THE_REAL_SNDCTL_DSP_GETBLKSIZE _IOWR('P', 4, int)
1051 case THE_REAL_SNDCTL_DSP_GETBLKSIZE:
1052 case SNDCTL_DSP_GETBLKSIZE:
1053 chn = wrch ? wrch : rdch;
1054 if (chn) {
1055 CHN_LOCK(chn);
1056 *arg_i = sndbuf_getblksz(chn->bufsoft);
1057 CHN_UNLOCK(chn);
1058 } else {
1059 *arg_i = 0;
1060 ret = EINVAL;
1061 }
|
853 break ;
| 1062 break;
|
854
855 case SNDCTL_DSP_SETBLKSIZE:
856 RANGE(*arg_i, 16, 65536);
| 1063
1064 case SNDCTL_DSP_SETBLKSIZE:
1065 RANGE(*arg_i, 16, 65536);
|
| 1066 PCM_ACQUIRE_QUICK(d);
|
857 if (wrch) {
858 CHN_LOCK(wrch);
859 chn_setblocksize(wrch, 2, *arg_i);
860 CHN_UNLOCK(wrch);
861 }
862 if (rdch) {
863 CHN_LOCK(rdch);
864 chn_setblocksize(rdch, 2, *arg_i);
865 CHN_UNLOCK(rdch);
866 }
| 1067 if (wrch) {
1068 CHN_LOCK(wrch);
1069 chn_setblocksize(wrch, 2, *arg_i);
1070 CHN_UNLOCK(wrch);
1071 }
1072 if (rdch) {
1073 CHN_LOCK(rdch);
1074 chn_setblocksize(rdch, 2, *arg_i);
1075 CHN_UNLOCK(rdch);
1076 }
|
| 1077 PCM_RELEASE_QUICK(d);
|
867 break;
868
869 case SNDCTL_DSP_RESET:
870 DEB(printf("dsp reset\n"));
871 if (wrch) {
872 CHN_LOCK(wrch);
873 chn_abort(wrch);
874 chn_resetbuf(wrch);
875 CHN_UNLOCK(wrch);
876 }
877 if (rdch) {
878 CHN_LOCK(rdch);
879 chn_abort(rdch);
880 chn_resetbuf(rdch);
881 CHN_UNLOCK(rdch);
882 }
883 break;
884
885 case SNDCTL_DSP_SYNC:
886 DEB(printf("dsp sync\n"));
887 /* chn_sync may sleep */
888 if (wrch) {
889 CHN_LOCK(wrch);
890 chn_sync(wrch, 0);
891 CHN_UNLOCK(wrch);
| 1078 break;
1079
1080 case SNDCTL_DSP_RESET:
1081 DEB(printf("dsp reset\n"));
1082 if (wrch) {
1083 CHN_LOCK(wrch);
1084 chn_abort(wrch);
1085 chn_resetbuf(wrch);
1086 CHN_UNLOCK(wrch);
1087 }
1088 if (rdch) {
1089 CHN_LOCK(rdch);
1090 chn_abort(rdch);
1091 chn_resetbuf(rdch);
1092 CHN_UNLOCK(rdch);
1093 }
1094 break;
1095
1096 case SNDCTL_DSP_SYNC:
1097 DEB(printf("dsp sync\n"));
1098 /* chn_sync may sleep */
1099 if (wrch) {
1100 CHN_LOCK(wrch);
1101 chn_sync(wrch, 0);
1102 CHN_UNLOCK(wrch);
|
892 }
| 1103 } else
1104 ret = EINVAL;
|
893 break;
894
895 case SNDCTL_DSP_SPEED:
896 /* chn_setspeed may sleep */
897 tmp = 0;
| 1105 break;
1106
1107 case SNDCTL_DSP_SPEED:
1108 /* chn_setspeed may sleep */
1109 tmp = 0;
|
| 1110 PCM_ACQUIRE_QUICK(d);
|
898 if (wrch) {
899 CHN_LOCK(wrch);
900 ret = chn_setspeed(wrch, *arg_i);
901 tmp = wrch->speed;
902 CHN_UNLOCK(wrch);
903 }
904 if (rdch && ret == 0) {
905 CHN_LOCK(rdch);
906 ret = chn_setspeed(rdch, *arg_i);
907 if (tmp == 0)
908 tmp = rdch->speed;
909 CHN_UNLOCK(rdch);
910 }
| 1111 if (wrch) {
1112 CHN_LOCK(wrch);
1113 ret = chn_setspeed(wrch, *arg_i);
1114 tmp = wrch->speed;
1115 CHN_UNLOCK(wrch);
1116 }
1117 if (rdch && ret == 0) {
1118 CHN_LOCK(rdch);
1119 ret = chn_setspeed(rdch, *arg_i);
1120 if (tmp == 0)
1121 tmp = rdch->speed;
1122 CHN_UNLOCK(rdch);
1123 }
|
| 1124 PCM_RELEASE_QUICK(d);
|
911 *arg_i = tmp;
912 break;
913
914 case SOUND_PCM_READ_RATE:
915 chn = wrch ? wrch : rdch;
916 if (chn) {
917 CHN_LOCK(chn);
918 *arg_i = chn->speed;
919 CHN_UNLOCK(chn);
920 } else {
921 *arg_i = 0;
922 ret = EINVAL;
923 }
924 break;
925
926 case SNDCTL_DSP_STEREO:
927 tmp = -1;
928 *arg_i = (*arg_i)? AFMT_STEREO : 0;
| 1125 *arg_i = tmp;
1126 break;
1127
1128 case SOUND_PCM_READ_RATE:
1129 chn = wrch ? wrch : rdch;
1130 if (chn) {
1131 CHN_LOCK(chn);
1132 *arg_i = chn->speed;
1133 CHN_UNLOCK(chn);
1134 } else {
1135 *arg_i = 0;
1136 ret = EINVAL;
1137 }
1138 break;
1139
1140 case SNDCTL_DSP_STEREO:
1141 tmp = -1;
1142 *arg_i = (*arg_i)? AFMT_STEREO : 0;
|
| 1143 PCM_ACQUIRE_QUICK(d);
|
929 if (wrch) {
930 CHN_LOCK(wrch);
931 ret = chn_setformat(wrch, (wrch->format & ~AFMT_STEREO) | *arg_i);
932 tmp = (wrch->format & AFMT_STEREO)? 1 : 0;
933 CHN_UNLOCK(wrch);
934 }
935 if (rdch && ret == 0) {
936 CHN_LOCK(rdch);
937 ret = chn_setformat(rdch, (rdch->format & ~AFMT_STEREO) | *arg_i);
938 if (tmp == -1)
939 tmp = (rdch->format & AFMT_STEREO)? 1 : 0;
940 CHN_UNLOCK(rdch);
941 }
| 1144 if (wrch) {
1145 CHN_LOCK(wrch);
1146 ret = chn_setformat(wrch, (wrch->format & ~AFMT_STEREO) | *arg_i);
1147 tmp = (wrch->format & AFMT_STEREO)? 1 : 0;
1148 CHN_UNLOCK(wrch);
1149 }
1150 if (rdch && ret == 0) {
1151 CHN_LOCK(rdch);
1152 ret = chn_setformat(rdch, (rdch->format & ~AFMT_STEREO) | *arg_i);
1153 if (tmp == -1)
1154 tmp = (rdch->format & AFMT_STEREO)? 1 : 0;
1155 CHN_UNLOCK(rdch);
1156 }
|
| 1157 PCM_RELEASE_QUICK(d);
|
942 *arg_i = tmp;
943 break;
944
945 case SOUND_PCM_WRITE_CHANNELS:
946/* case SNDCTL_DSP_CHANNELS: ( == SOUND_PCM_WRITE_CHANNELS) */
947 if (*arg_i != 0) {
948 tmp = 0;
949 *arg_i = (*arg_i != 1)? AFMT_STEREO : 0;
| 1158 *arg_i = tmp;
1159 break;
1160
1161 case SOUND_PCM_WRITE_CHANNELS:
1162/* case SNDCTL_DSP_CHANNELS: ( == SOUND_PCM_WRITE_CHANNELS) */
1163 if (*arg_i != 0) {
1164 tmp = 0;
1165 *arg_i = (*arg_i != 1)? AFMT_STEREO : 0;
|
| 1166 PCM_ACQUIRE_QUICK(d);
|
950 if (wrch) {
951 CHN_LOCK(wrch);
952 ret = chn_setformat(wrch, (wrch->format & ~AFMT_STEREO) | *arg_i);
953 tmp = (wrch->format & AFMT_STEREO)? 2 : 1;
954 CHN_UNLOCK(wrch);
955 }
956 if (rdch && ret == 0) {
957 CHN_LOCK(rdch);
958 ret = chn_setformat(rdch, (rdch->format & ~AFMT_STEREO) | *arg_i);
959 if (tmp == 0)
960 tmp = (rdch->format & AFMT_STEREO)? 2 : 1;
961 CHN_UNLOCK(rdch);
962 }
| 1167 if (wrch) {
1168 CHN_LOCK(wrch);
1169 ret = chn_setformat(wrch, (wrch->format & ~AFMT_STEREO) | *arg_i);
1170 tmp = (wrch->format & AFMT_STEREO)? 2 : 1;
1171 CHN_UNLOCK(wrch);
1172 }
1173 if (rdch && ret == 0) {
1174 CHN_LOCK(rdch);
1175 ret = chn_setformat(rdch, (rdch->format & ~AFMT_STEREO) | *arg_i);
1176 if (tmp == 0)
1177 tmp = (rdch->format & AFMT_STEREO)? 2 : 1;
1178 CHN_UNLOCK(rdch);
1179 }
|
| 1180 PCM_RELEASE_QUICK(d);
|
963 *arg_i = tmp;
964 } else {
965 chn = wrch ? wrch : rdch;
966 CHN_LOCK(chn);
967 *arg_i = (chn->format & AFMT_STEREO) ? 2 : 1;
968 CHN_UNLOCK(chn);
969 }
970 break;
971
972 case SOUND_PCM_READ_CHANNELS:
973 chn = wrch ? wrch : rdch;
974 if (chn) {
975 CHN_LOCK(chn);
976 *arg_i = (chn->format & AFMT_STEREO) ? 2 : 1;
977 CHN_UNLOCK(chn);
978 } else {
979 *arg_i = 0;
980 ret = EINVAL;
981 }
982 break;
983
984 case SNDCTL_DSP_GETFMTS: /* returns a mask of supported fmts */
985 chn = wrch ? wrch : rdch;
986 if (chn) {
987 CHN_LOCK(chn);
988 *arg_i = chn_getformats(chn);
989 CHN_UNLOCK(chn);
990 } else {
991 *arg_i = 0;
992 ret = EINVAL;
993 }
| 1181 *arg_i = tmp;
1182 } else {
1183 chn = wrch ? wrch : rdch;
1184 CHN_LOCK(chn);
1185 *arg_i = (chn->format & AFMT_STEREO) ? 2 : 1;
1186 CHN_UNLOCK(chn);
1187 }
1188 break;
1189
1190 case SOUND_PCM_READ_CHANNELS:
1191 chn = wrch ? wrch : rdch;
1192 if (chn) {
1193 CHN_LOCK(chn);
1194 *arg_i = (chn->format & AFMT_STEREO) ? 2 : 1;
1195 CHN_UNLOCK(chn);
1196 } else {
1197 *arg_i = 0;
1198 ret = EINVAL;
1199 }
1200 break;
1201
1202 case SNDCTL_DSP_GETFMTS: /* returns a mask of supported fmts */
1203 chn = wrch ? wrch : rdch;
1204 if (chn) {
1205 CHN_LOCK(chn);
1206 *arg_i = chn_getformats(chn);
1207 CHN_UNLOCK(chn);
1208 } else {
1209 *arg_i = 0;
1210 ret = EINVAL;
1211 }
|
994 break ;
| 1212 break;
|
995
996 case SNDCTL_DSP_SETFMT: /* sets _one_ format */
997 if ((*arg_i != AFMT_QUERY)) {
998 tmp = 0;
| 1213
1214 case SNDCTL_DSP_SETFMT: /* sets _one_ format */
1215 if ((*arg_i != AFMT_QUERY)) {
1216 tmp = 0;
|
| 1217 PCM_ACQUIRE_QUICK(d);
|
999 if (wrch) {
1000 CHN_LOCK(wrch);
1001 ret = chn_setformat(wrch, (*arg_i) | (wrch->format & AFMT_STEREO));
1002 tmp = wrch->format & ~AFMT_STEREO;
1003 CHN_UNLOCK(wrch);
1004 }
1005 if (rdch && ret == 0) {
1006 CHN_LOCK(rdch);
1007 ret = chn_setformat(rdch, (*arg_i) | (rdch->format & AFMT_STEREO));
1008 if (tmp == 0)
1009 tmp = rdch->format & ~AFMT_STEREO;
1010 CHN_UNLOCK(rdch);
1011 }
| 1218 if (wrch) {
1219 CHN_LOCK(wrch);
1220 ret = chn_setformat(wrch, (*arg_i) | (wrch->format & AFMT_STEREO));
1221 tmp = wrch->format & ~AFMT_STEREO;
1222 CHN_UNLOCK(wrch);
1223 }
1224 if (rdch && ret == 0) {
1225 CHN_LOCK(rdch);
1226 ret = chn_setformat(rdch, (*arg_i) | (rdch->format & AFMT_STEREO));
1227 if (tmp == 0)
1228 tmp = rdch->format & ~AFMT_STEREO;
1229 CHN_UNLOCK(rdch);
1230 }
|
| 1231 PCM_RELEASE_QUICK(d);
|
1012 *arg_i = tmp;
1013 } else {
1014 chn = wrch ? wrch : rdch;
1015 CHN_LOCK(chn);
1016 *arg_i = chn->format & ~AFMT_STEREO;
1017 CHN_UNLOCK(chn);
1018 }
1019 break;
1020
1021 case SNDCTL_DSP_SETFRAGMENT:
1022 DEB(printf("SNDCTL_DSP_SETFRAGMENT 0x%08x\n", *(int *)arg));
1023 {
| 1232 *arg_i = tmp;
1233 } else {
1234 chn = wrch ? wrch : rdch;
1235 CHN_LOCK(chn);
1236 *arg_i = chn->format & ~AFMT_STEREO;
1237 CHN_UNLOCK(chn);
1238 }
1239 break;
1240
1241 case SNDCTL_DSP_SETFRAGMENT:
1242 DEB(printf("SNDCTL_DSP_SETFRAGMENT 0x%08x\n", *(int *)arg));
1243 {
|
1024 u_int32_t fragln = (*arg_i) & 0x0000ffff;
1025 u_int32_t maxfrags = ((*arg_i) & 0xffff0000) >> 16;
1026 u_int32_t fragsz;
1027 u_int32_t r_maxfrags, r_fragsz;
| 1244 uint32_t fragln = (*arg_i) & 0x0000ffff;
1245 uint32_t maxfrags = ((*arg_i) & 0xffff0000) >> 16;
1246 uint32_t fragsz;
1247 uint32_t r_maxfrags, r_fragsz;
|
1028
1029 RANGE(fragln, 4, 16);
1030 fragsz = 1 << fragln;
1031
1032 if (maxfrags == 0)
1033 maxfrags = CHN_2NDBUFMAXSIZE / fragsz;
1034 if (maxfrags < 2)
1035 maxfrags = 2;
1036 if (maxfrags * fragsz > CHN_2NDBUFMAXSIZE)
1037 maxfrags = CHN_2NDBUFMAXSIZE / fragsz;
1038
1039 DEB(printf("SNDCTL_DSP_SETFRAGMENT %d frags, %d sz\n", maxfrags, fragsz));
| 1248
1249 RANGE(fragln, 4, 16);
1250 fragsz = 1 << fragln;
1251
1252 if (maxfrags == 0)
1253 maxfrags = CHN_2NDBUFMAXSIZE / fragsz;
1254 if (maxfrags < 2)
1255 maxfrags = 2;
1256 if (maxfrags * fragsz > CHN_2NDBUFMAXSIZE)
1257 maxfrags = CHN_2NDBUFMAXSIZE / fragsz;
1258
1259 DEB(printf("SNDCTL_DSP_SETFRAGMENT %d frags, %d sz\n", maxfrags, fragsz));
|
| 1260 PCM_ACQUIRE_QUICK(d);
|
1040 if (rdch) {
1041 CHN_LOCK(rdch);
1042 ret = chn_setblocksize(rdch, maxfrags, fragsz);
1043 r_maxfrags = sndbuf_getblkcnt(rdch->bufsoft);
1044 r_fragsz = sndbuf_getblksz(rdch->bufsoft);
1045 CHN_UNLOCK(rdch);
1046 } else {
1047 r_maxfrags = maxfrags;
1048 r_fragsz = fragsz;
1049 }
1050 if (wrch && ret == 0) {
1051 CHN_LOCK(wrch);
1052 ret = chn_setblocksize(wrch, maxfrags, fragsz);
1053 maxfrags = sndbuf_getblkcnt(wrch->bufsoft);
1054 fragsz = sndbuf_getblksz(wrch->bufsoft);
1055 CHN_UNLOCK(wrch);
1056 } else { /* use whatever came from the read channel */
1057 maxfrags = r_maxfrags;
1058 fragsz = r_fragsz;
1059 }
| 1261 if (rdch) {
1262 CHN_LOCK(rdch);
1263 ret = chn_setblocksize(rdch, maxfrags, fragsz);
1264 r_maxfrags = sndbuf_getblkcnt(rdch->bufsoft);
1265 r_fragsz = sndbuf_getblksz(rdch->bufsoft);
1266 CHN_UNLOCK(rdch);
1267 } else {
1268 r_maxfrags = maxfrags;
1269 r_fragsz = fragsz;
1270 }
1271 if (wrch && ret == 0) {
1272 CHN_LOCK(wrch);
1273 ret = chn_setblocksize(wrch, maxfrags, fragsz);
1274 maxfrags = sndbuf_getblkcnt(wrch->bufsoft);
1275 fragsz = sndbuf_getblksz(wrch->bufsoft);
1276 CHN_UNLOCK(wrch);
1277 } else { /* use whatever came from the read channel */
1278 maxfrags = r_maxfrags;
1279 fragsz = r_fragsz;
1280 }
|
| 1281 PCM_RELEASE_QUICK(d);
|
1060
1061 fragln = 0;
1062 while (fragsz > 1) {
1063 fragln++;
1064 fragsz >>= 1;
1065 }
1066 *arg_i = (maxfrags << 16) | fragln;
1067 }
1068 break;
1069
1070 case SNDCTL_DSP_GETISPACE:
1071 /* return the size of data available in the input queue */
1072 {
1073 audio_buf_info *a = (audio_buf_info *)arg;
1074 if (rdch) {
1075 struct snd_dbuf *bs = rdch->bufsoft;
1076
1077 CHN_LOCK(rdch);
1078 a->bytes = sndbuf_getready(bs);
1079 a->fragments = a->bytes / sndbuf_getblksz(bs);
1080 a->fragstotal = sndbuf_getblkcnt(bs);
1081 a->fragsize = sndbuf_getblksz(bs);
1082 CHN_UNLOCK(rdch);
| 1282
1283 fragln = 0;
1284 while (fragsz > 1) {
1285 fragln++;
1286 fragsz >>= 1;
1287 }
1288 *arg_i = (maxfrags << 16) | fragln;
1289 }
1290 break;
1291
1292 case SNDCTL_DSP_GETISPACE:
1293 /* return the size of data available in the input queue */
1294 {
1295 audio_buf_info *a = (audio_buf_info *)arg;
1296 if (rdch) {
1297 struct snd_dbuf *bs = rdch->bufsoft;
1298
1299 CHN_LOCK(rdch);
1300 a->bytes = sndbuf_getready(bs);
1301 a->fragments = a->bytes / sndbuf_getblksz(bs);
1302 a->fragstotal = sndbuf_getblkcnt(bs);
1303 a->fragsize = sndbuf_getblksz(bs);
1304 CHN_UNLOCK(rdch);
|
1083 }
| 1305 } else
1306 ret = EINVAL;
|
1084 }
1085 break;
1086
1087 case SNDCTL_DSP_GETOSPACE:
1088 /* return space available in the output queue */
1089 {
1090 audio_buf_info *a = (audio_buf_info *)arg;
1091 if (wrch) {
1092 struct snd_dbuf *bs = wrch->bufsoft;
1093
1094 CHN_LOCK(wrch);
1095 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1096 a->bytes = sndbuf_getfree(bs);
1097 a->fragments = a->bytes / sndbuf_getblksz(bs);
1098 a->fragstotal = sndbuf_getblkcnt(bs);
1099 a->fragsize = sndbuf_getblksz(bs);
1100 CHN_UNLOCK(wrch);
| 1307 }
1308 break;
1309
1310 case SNDCTL_DSP_GETOSPACE:
1311 /* return space available in the output queue */
1312 {
1313 audio_buf_info *a = (audio_buf_info *)arg;
1314 if (wrch) {
1315 struct snd_dbuf *bs = wrch->bufsoft;
1316
1317 CHN_LOCK(wrch);
1318 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1319 a->bytes = sndbuf_getfree(bs);
1320 a->fragments = a->bytes / sndbuf_getblksz(bs);
1321 a->fragstotal = sndbuf_getblkcnt(bs);
1322 a->fragsize = sndbuf_getblksz(bs);
1323 CHN_UNLOCK(wrch);
|
1101 }
| 1324 } else
1325 ret = EINVAL;
|
1102 }
1103 break;
1104
1105 case SNDCTL_DSP_GETIPTR:
1106 {
1107 count_info *a = (count_info *)arg;
1108 if (rdch) {
1109 struct snd_dbuf *bs = rdch->bufsoft;
1110
1111 CHN_LOCK(rdch);
1112 /* XXX abusive DMA update: chn_rdupdate(rdch); */
1113 a->bytes = sndbuf_gettotal(bs);
1114 a->blocks = sndbuf_getblocks(bs) - rdch->blocks;
1115 a->ptr = sndbuf_getreadyptr(bs);
1116 rdch->blocks = sndbuf_getblocks(bs);
1117 CHN_UNLOCK(rdch);
1118 } else
1119 ret = EINVAL;
1120 }
1121 break;
1122
1123 case SNDCTL_DSP_GETOPTR:
1124 {
1125 count_info *a = (count_info *)arg;
1126 if (wrch) {
1127 struct snd_dbuf *bs = wrch->bufsoft;
1128
1129 CHN_LOCK(wrch);
1130 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1131 a->bytes = sndbuf_gettotal(bs);
1132 a->blocks = sndbuf_getblocks(bs) - wrch->blocks;
1133 a->ptr = sndbuf_getreadyptr(bs);
1134 wrch->blocks = sndbuf_getblocks(bs);
1135 CHN_UNLOCK(wrch);
1136 } else
1137 ret = EINVAL;
1138 }
1139 break;
1140
1141 case SNDCTL_DSP_GETCAPS:
| 1326 }
1327 break;
1328
1329 case SNDCTL_DSP_GETIPTR:
1330 {
1331 count_info *a = (count_info *)arg;
1332 if (rdch) {
1333 struct snd_dbuf *bs = rdch->bufsoft;
1334
1335 CHN_LOCK(rdch);
1336 /* XXX abusive DMA update: chn_rdupdate(rdch); */
1337 a->bytes = sndbuf_gettotal(bs);
1338 a->blocks = sndbuf_getblocks(bs) - rdch->blocks;
1339 a->ptr = sndbuf_getreadyptr(bs);
1340 rdch->blocks = sndbuf_getblocks(bs);
1341 CHN_UNLOCK(rdch);
1342 } else
1343 ret = EINVAL;
1344 }
1345 break;
1346
1347 case SNDCTL_DSP_GETOPTR:
1348 {
1349 count_info *a = (count_info *)arg;
1350 if (wrch) {
1351 struct snd_dbuf *bs = wrch->bufsoft;
1352
1353 CHN_LOCK(wrch);
1354 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1355 a->bytes = sndbuf_gettotal(bs);
1356 a->blocks = sndbuf_getblocks(bs) - wrch->blocks;
1357 a->ptr = sndbuf_getreadyptr(bs);
1358 wrch->blocks = sndbuf_getblocks(bs);
1359 CHN_UNLOCK(wrch);
1360 } else
1361 ret = EINVAL;
1362 }
1363 break;
1364
1365 case SNDCTL_DSP_GETCAPS:
|
| 1366 pcm_lock(d);
|
1142 *arg_i = DSP_CAP_REALTIME | DSP_CAP_MMAP | DSP_CAP_TRIGGER;
1143 if (rdch && wrch && !(dsp_get_flags(i_dev) & SD_F_SIMPLEX))
1144 *arg_i |= DSP_CAP_DUPLEX;
| 1367 *arg_i = DSP_CAP_REALTIME | DSP_CAP_MMAP | DSP_CAP_TRIGGER;
1368 if (rdch && wrch && !(dsp_get_flags(i_dev) & SD_F_SIMPLEX))
1369 *arg_i |= DSP_CAP_DUPLEX;
|
| 1370 pcm_unlock(d);
|
1145 break;
1146
1147 case SOUND_PCM_READ_BITS:
1148 chn = wrch ? wrch : rdch;
1149 if (chn) {
1150 CHN_LOCK(chn);
1151 if (chn->format & AFMT_8BIT)
1152 *arg_i = 8;
1153 else if (chn->format & AFMT_16BIT)
1154 *arg_i = 16;
1155 else if (chn->format & AFMT_24BIT)
1156 *arg_i = 24;
1157 else if (chn->format & AFMT_32BIT)
1158 *arg_i = 32;
1159 else
1160 ret = EINVAL;
1161 CHN_UNLOCK(chn);
1162 } else {
1163 *arg_i = 0;
1164 ret = EINVAL;
1165 }
1166 break;
1167
1168 case SNDCTL_DSP_SETTRIGGER:
1169 if (rdch) {
1170 CHN_LOCK(rdch);
1171 rdch->flags &= ~(CHN_F_TRIGGERED | CHN_F_NOTRIGGER);
1172 if (*arg_i & PCM_ENABLE_INPUT)
1173 chn_start(rdch, 1);
1174 else
1175 rdch->flags |= CHN_F_NOTRIGGER;
1176 CHN_UNLOCK(rdch);
1177 }
1178 if (wrch) {
1179 CHN_LOCK(wrch);
1180 wrch->flags &= ~(CHN_F_TRIGGERED | CHN_F_NOTRIGGER);
1181 if (*arg_i & PCM_ENABLE_OUTPUT)
1182 chn_start(wrch, 1);
1183 else
1184 wrch->flags |= CHN_F_NOTRIGGER;
1185 CHN_UNLOCK(wrch);
1186 }
1187 break;
1188
1189 case SNDCTL_DSP_GETTRIGGER:
1190 *arg_i = 0;
1191 if (wrch) {
1192 CHN_LOCK(wrch);
1193 if (wrch->flags & CHN_F_TRIGGERED)
1194 *arg_i |= PCM_ENABLE_OUTPUT;
1195 CHN_UNLOCK(wrch);
1196 }
1197 if (rdch) {
1198 CHN_LOCK(rdch);
1199 if (rdch->flags & CHN_F_TRIGGERED)
1200 *arg_i |= PCM_ENABLE_INPUT;
1201 CHN_UNLOCK(rdch);
1202 }
1203 break;
1204
1205 case SNDCTL_DSP_GETODELAY:
1206 if (wrch) {
1207 struct snd_dbuf *bs = wrch->bufsoft;
1208
1209 CHN_LOCK(wrch);
1210 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1211 *arg_i = sndbuf_getready(bs);
1212 CHN_UNLOCK(wrch);
1213 } else
1214 ret = EINVAL;
1215 break;
1216
1217 case SNDCTL_DSP_POST:
1218 if (wrch) {
1219 CHN_LOCK(wrch);
1220 wrch->flags &= ~CHN_F_NOTRIGGER;
1221 chn_start(wrch, 1);
1222 CHN_UNLOCK(wrch);
| 1371 break;
1372
1373 case SOUND_PCM_READ_BITS:
1374 chn = wrch ? wrch : rdch;
1375 if (chn) {
1376 CHN_LOCK(chn);
1377 if (chn->format & AFMT_8BIT)
1378 *arg_i = 8;
1379 else if (chn->format & AFMT_16BIT)
1380 *arg_i = 16;
1381 else if (chn->format & AFMT_24BIT)
1382 *arg_i = 24;
1383 else if (chn->format & AFMT_32BIT)
1384 *arg_i = 32;
1385 else
1386 ret = EINVAL;
1387 CHN_UNLOCK(chn);
1388 } else {
1389 *arg_i = 0;
1390 ret = EINVAL;
1391 }
1392 break;
1393
1394 case SNDCTL_DSP_SETTRIGGER:
1395 if (rdch) {
1396 CHN_LOCK(rdch);
1397 rdch->flags &= ~(CHN_F_TRIGGERED | CHN_F_NOTRIGGER);
1398 if (*arg_i & PCM_ENABLE_INPUT)
1399 chn_start(rdch, 1);
1400 else
1401 rdch->flags |= CHN_F_NOTRIGGER;
1402 CHN_UNLOCK(rdch);
1403 }
1404 if (wrch) {
1405 CHN_LOCK(wrch);
1406 wrch->flags &= ~(CHN_F_TRIGGERED | CHN_F_NOTRIGGER);
1407 if (*arg_i & PCM_ENABLE_OUTPUT)
1408 chn_start(wrch, 1);
1409 else
1410 wrch->flags |= CHN_F_NOTRIGGER;
1411 CHN_UNLOCK(wrch);
1412 }
1413 break;
1414
1415 case SNDCTL_DSP_GETTRIGGER:
1416 *arg_i = 0;
1417 if (wrch) {
1418 CHN_LOCK(wrch);
1419 if (wrch->flags & CHN_F_TRIGGERED)
1420 *arg_i |= PCM_ENABLE_OUTPUT;
1421 CHN_UNLOCK(wrch);
1422 }
1423 if (rdch) {
1424 CHN_LOCK(rdch);
1425 if (rdch->flags & CHN_F_TRIGGERED)
1426 *arg_i |= PCM_ENABLE_INPUT;
1427 CHN_UNLOCK(rdch);
1428 }
1429 break;
1430
1431 case SNDCTL_DSP_GETODELAY:
1432 if (wrch) {
1433 struct snd_dbuf *bs = wrch->bufsoft;
1434
1435 CHN_LOCK(wrch);
1436 /* XXX abusive DMA update: chn_wrupdate(wrch); */
1437 *arg_i = sndbuf_getready(bs);
1438 CHN_UNLOCK(wrch);
1439 } else
1440 ret = EINVAL;
1441 break;
1442
1443 case SNDCTL_DSP_POST:
1444 if (wrch) {
1445 CHN_LOCK(wrch);
1446 wrch->flags &= ~CHN_F_NOTRIGGER;
1447 chn_start(wrch, 1);
1448 CHN_UNLOCK(wrch);
|
1223 }
| 1449 } else
1450 ret = EINVAL;
|
1224 break;
1225
1226 case SNDCTL_DSP_SETDUPLEX:
1227 /*
1228 * switch to full-duplex mode if card is in half-duplex
1229 * mode and is able to work in full-duplex mode
1230 */
| 1451 break;
1452
1453 case SNDCTL_DSP_SETDUPLEX:
1454 /*
1455 * switch to full-duplex mode if card is in half-duplex
1456 * mode and is able to work in full-duplex mode
1457 */
|
| 1458 pcm_lock(d);
|
1231 if (rdch && wrch && (dsp_get_flags(i_dev) & SD_F_SIMPLEX))
1232 dsp_set_flags(i_dev, dsp_get_flags(i_dev)^SD_F_SIMPLEX);
| 1459 if (rdch && wrch && (dsp_get_flags(i_dev) & SD_F_SIMPLEX))
1460 dsp_set_flags(i_dev, dsp_get_flags(i_dev)^SD_F_SIMPLEX);
|
| 1461 pcm_unlock(d);
|
1233 break;
1234
1235 /*
1236 * The following four ioctls are simple wrappers around mixer_ioctl
1237 * with no further processing. xcmd is short for "translated
1238 * command".
1239 */
1240 case SNDCTL_DSP_GETRECVOL:
1241 if (xcmd == 0)
1242 xcmd = SOUND_MIXER_READ_RECLEV;
1243 /* FALLTHROUGH */
1244 case SNDCTL_DSP_SETRECVOL:
1245 if (xcmd == 0)
1246 xcmd = SOUND_MIXER_WRITE_RECLEV;
1247 /* FALLTHROUGH */
1248 case SNDCTL_DSP_GETPLAYVOL:
1249 if (xcmd == 0)
1250 xcmd = SOUND_MIXER_READ_PCM;
1251 /* FALLTHROUGH */
1252 case SNDCTL_DSP_SETPLAYVOL:
1253 if (xcmd == 0)
1254 xcmd = SOUND_MIXER_WRITE_PCM;
1255
| 1462 break;
1463
1464 /*
1465 * The following four ioctls are simple wrappers around mixer_ioctl
1466 * with no further processing. xcmd is short for "translated
1467 * command".
1468 */
1469 case SNDCTL_DSP_GETRECVOL:
1470 if (xcmd == 0)
1471 xcmd = SOUND_MIXER_READ_RECLEV;
1472 /* FALLTHROUGH */
1473 case SNDCTL_DSP_SETRECVOL:
1474 if (xcmd == 0)
1475 xcmd = SOUND_MIXER_WRITE_RECLEV;
1476 /* FALLTHROUGH */
1477 case SNDCTL_DSP_GETPLAYVOL:
1478 if (xcmd == 0)
1479 xcmd = SOUND_MIXER_READ_PCM;
1480 /* FALLTHROUGH */
1481 case SNDCTL_DSP_SETPLAYVOL:
1482 if (xcmd == 0)
1483 xcmd = SOUND_MIXER_WRITE_PCM;
1484
|
1256 if (d->mixer_dev != NULL)
1257 ret = mixer_ioctl(d->mixer_dev, xcmd, arg, -1, td);
1258 else
| 1485 if (d->mixer_dev != NULL) {
1486 PCM_ACQUIRE_QUICK(d);
1487 ret = mixer_ioctl_cmd(d->mixer_dev, xcmd, arg, -1, td,
1488 MIXER_CMD_DIRECT);
1489 PCM_RELEASE_QUICK(d);
1490 } else
|
1259 ret = ENOTSUP;
1260 break;
1261
1262 case SNDCTL_DSP_GET_RECSRC_NAMES:
1263 case SNDCTL_DSP_GET_RECSRC:
1264 case SNDCTL_DSP_SET_RECSRC:
| 1491 ret = ENOTSUP;
1492 break;
1493
1494 case SNDCTL_DSP_GET_RECSRC_NAMES:
1495 case SNDCTL_DSP_GET_RECSRC:
1496 case SNDCTL_DSP_SET_RECSRC:
|
1265 if (d->mixer_dev != NULL)
1266 ret = mixer_ioctl(d->mixer_dev, cmd, arg, -1, td);
1267 else
| 1497 if (d->mixer_dev != NULL) {
1498 PCM_ACQUIRE_QUICK(d);
1499 ret = mixer_ioctl_cmd(d->mixer_dev, cmd, arg, -1, td,
1500 MIXER_CMD_DIRECT);
1501 PCM_RELEASE_QUICK(d);
1502 } else
|
1268 ret = ENOTSUP;
1269 break;
1270
1271 /*
1272 * The following 3 ioctls aren't very useful at the moment. For
1273 * now, only a single channel is associated with a cdev (/dev/dspN
1274 * instance), so there's only a single output routing to use (i.e.,
1275 * the wrch bound to this cdev).
1276 */
1277 case SNDCTL_DSP_GET_PLAYTGT_NAMES:
1278 {
1279 oss_mixer_enuminfo *ei;
1280 ei = (oss_mixer_enuminfo *)arg;
1281 ei->dev = 0;
1282 ei->ctrl = 0;
1283 ei->version = 0; /* static for now */
1284 ei->strindex[0] = 0;
1285
1286 if (wrch != NULL) {
1287 ei->nvalues = 1;
1288 strlcpy(ei->strings, wrch->name,
1289 sizeof(ei->strings));
1290 } else {
1291 ei->nvalues = 0;
1292 ei->strings[0] = '\0';
1293 }
1294 }
1295 break;
1296 case SNDCTL_DSP_GET_PLAYTGT:
1297 case SNDCTL_DSP_SET_PLAYTGT: /* yes, they are the same for now */
1298 /*
1299 * Re: SET_PLAYTGT
1300 * OSSv4: "The value that was accepted by the device will
1301 * be returned back in the variable pointed by the
1302 * argument."
1303 */
1304 if (wrch != NULL)
1305 *arg_i = 0;
1306 else
1307 ret = EINVAL;
1308 break;
1309
1310 case SNDCTL_DSP_SILENCE:
1311 /*
1312 * Flush the software (pre-feed) buffer, but try to minimize playback
1313 * interruption. (I.e., record unplayed samples with intent to
1314 * restore by SNDCTL_DSP_SKIP.) Intended for application "pause"
1315 * functionality.
1316 */
1317 if (wrch == NULL)
1318 ret = EINVAL;
1319 else {
1320 struct snd_dbuf *bs;
1321 CHN_LOCK(wrch);
1322 while (wrch->inprog != 0)
1323 cv_wait(&wrch->cv, wrch->lock);
1324 bs = wrch->bufsoft;
1325 if ((bs->shadbuf != NULL) && (sndbuf_getready(bs) > 0)) {
1326 bs->sl = sndbuf_getready(bs);
1327 sndbuf_dispose(bs, bs->shadbuf, sndbuf_getready(bs));
1328 sndbuf_fillsilence(bs);
1329 chn_start(wrch, 0);
1330 }
1331 CHN_UNLOCK(wrch);
1332 }
1333 break;
1334
1335 case SNDCTL_DSP_SKIP:
1336 /*
1337 * OSSv4 docs: "This ioctl call discards all unplayed samples in the
1338 * playback buffer by moving the current write position immediately
1339 * before the point where the device is currently reading the samples."
1340 */
1341 if (wrch == NULL)
1342 ret = EINVAL;
1343 else {
1344 struct snd_dbuf *bs;
1345 CHN_LOCK(wrch);
1346 while (wrch->inprog != 0)
1347 cv_wait(&wrch->cv, wrch->lock);
1348 bs = wrch->bufsoft;
1349 if ((bs->shadbuf != NULL) && (bs->sl > 0)) {
1350 sndbuf_softreset(bs);
1351 sndbuf_acquire(bs, bs->shadbuf, bs->sl);
1352 bs->sl = 0;
1353 chn_start(wrch, 0);
1354 }
1355 CHN_UNLOCK(wrch);
1356 }
1357 break;
1358
1359 case SNDCTL_DSP_CURRENT_OPTR:
1360 case SNDCTL_DSP_CURRENT_IPTR:
1361 /**
1362 * @note Changing formats resets the buffer counters, which differs
1363 * from the 4Front drivers. However, I don't expect this to be
1364 * much of a problem.
1365 *
1366 * @note In a test where @c CURRENT_OPTR is called immediately after write
1367 * returns, this driver is about 32K samples behind whereas
1368 * 4Front's is about 8K samples behind. Should determine source
1369 * of discrepancy, even if only out of curiosity.
1370 *
1371 * @todo Actually test SNDCTL_DSP_CURRENT_IPTR.
1372 */
1373 chn = (cmd == SNDCTL_DSP_CURRENT_OPTR) ? wrch : rdch;
1374 if (chn == NULL)
1375 ret = EINVAL;
1376 else {
1377 struct snd_dbuf *bs;
1378 /* int tmp; */
1379
1380 oss_count_t *oc = (oss_count_t *)arg;
1381
1382 CHN_LOCK(chn);
1383 bs = chn->bufsoft;
1384#if 0
1385 tmp = (sndbuf_getsize(b) + chn_getptr(chn) - sndbuf_gethwptr(b)) % sndbuf_getsize(b);
1386 oc->samples = (sndbuf_gettotal(b) + tmp) / sndbuf_getbps(b);
1387 oc->fifo_samples = (sndbuf_getready(b) - tmp) / sndbuf_getbps(b);
1388#else
1389 oc->samples = sndbuf_gettotal(bs) / sndbuf_getbps(bs);
1390 oc->fifo_samples = sndbuf_getready(bs) / sndbuf_getbps(bs);
1391#endif
1392 CHN_UNLOCK(chn);
1393 }
1394 break;
1395
1396 case SNDCTL_DSP_HALT_OUTPUT:
1397 case SNDCTL_DSP_HALT_INPUT:
1398 chn = (cmd == SNDCTL_DSP_HALT_OUTPUT) ? wrch : rdch;
1399 if (chn == NULL)
1400 ret = EINVAL;
1401 else {
1402 CHN_LOCK(chn);
1403 chn_abort(chn);
1404 CHN_UNLOCK(chn);
1405 }
1406 break;
1407
1408 case SNDCTL_DSP_LOW_WATER:
1409 /*
1410 * Set the number of bytes required to attract attention by
1411 * select/poll.
1412 */
1413 if (wrch != NULL) {
1414 CHN_LOCK(wrch);
1415 wrch->lw = (*arg_i > 1) ? *arg_i : 1;
1416 CHN_UNLOCK(wrch);
1417 }
1418 if (rdch != NULL) {
1419 CHN_LOCK(rdch);
1420 rdch->lw = (*arg_i > 1) ? *arg_i : 1;
1421 CHN_UNLOCK(rdch);
1422 }
1423 break;
1424
1425 case SNDCTL_DSP_GETERROR:
1426 /*
1427 * OSSv4 docs: "All errors and counters will automatically be
1428 * cleared to zeroes after the call so each call will return only
1429 * the errors that occurred after the previous invocation. ... The
1430 * play_underruns and rec_overrun fields are the only usefull fields
1431 * returned by OSS 4.0."
1432 */
1433 {
1434 audio_errinfo *ei = (audio_errinfo *)arg;
1435
1436 bzero((void *)ei, sizeof(*ei));
1437
1438 if (wrch != NULL) {
1439 CHN_LOCK(wrch);
1440 ei->play_underruns = wrch->xruns;
1441 wrch->xruns = 0;
1442 CHN_UNLOCK(wrch);
1443 }
1444 if (rdch != NULL) {
1445 CHN_LOCK(rdch);
1446 ei->rec_overruns = rdch->xruns;
1447 rdch->xruns = 0;
1448 CHN_UNLOCK(rdch);
1449 }
1450 }
1451 break;
1452
1453 case SNDCTL_DSP_SYNCGROUP:
| 1503 ret = ENOTSUP;
1504 break;
1505
1506 /*
1507 * The following 3 ioctls aren't very useful at the moment. For
1508 * now, only a single channel is associated with a cdev (/dev/dspN
1509 * instance), so there's only a single output routing to use (i.e.,
1510 * the wrch bound to this cdev).
1511 */
1512 case SNDCTL_DSP_GET_PLAYTGT_NAMES:
1513 {
1514 oss_mixer_enuminfo *ei;
1515 ei = (oss_mixer_enuminfo *)arg;
1516 ei->dev = 0;
1517 ei->ctrl = 0;
1518 ei->version = 0; /* static for now */
1519 ei->strindex[0] = 0;
1520
1521 if (wrch != NULL) {
1522 ei->nvalues = 1;
1523 strlcpy(ei->strings, wrch->name,
1524 sizeof(ei->strings));
1525 } else {
1526 ei->nvalues = 0;
1527 ei->strings[0] = '\0';
1528 }
1529 }
1530 break;
1531 case SNDCTL_DSP_GET_PLAYTGT:
1532 case SNDCTL_DSP_SET_PLAYTGT: /* yes, they are the same for now */
1533 /*
1534 * Re: SET_PLAYTGT
1535 * OSSv4: "The value that was accepted by the device will
1536 * be returned back in the variable pointed by the
1537 * argument."
1538 */
1539 if (wrch != NULL)
1540 *arg_i = 0;
1541 else
1542 ret = EINVAL;
1543 break;
1544
1545 case SNDCTL_DSP_SILENCE:
1546 /*
1547 * Flush the software (pre-feed) buffer, but try to minimize playback
1548 * interruption. (I.e., record unplayed samples with intent to
1549 * restore by SNDCTL_DSP_SKIP.) Intended for application "pause"
1550 * functionality.
1551 */
1552 if (wrch == NULL)
1553 ret = EINVAL;
1554 else {
1555 struct snd_dbuf *bs;
1556 CHN_LOCK(wrch);
1557 while (wrch->inprog != 0)
1558 cv_wait(&wrch->cv, wrch->lock);
1559 bs = wrch->bufsoft;
1560 if ((bs->shadbuf != NULL) && (sndbuf_getready(bs) > 0)) {
1561 bs->sl = sndbuf_getready(bs);
1562 sndbuf_dispose(bs, bs->shadbuf, sndbuf_getready(bs));
1563 sndbuf_fillsilence(bs);
1564 chn_start(wrch, 0);
1565 }
1566 CHN_UNLOCK(wrch);
1567 }
1568 break;
1569
1570 case SNDCTL_DSP_SKIP:
1571 /*
1572 * OSSv4 docs: "This ioctl call discards all unplayed samples in the
1573 * playback buffer by moving the current write position immediately
1574 * before the point where the device is currently reading the samples."
1575 */
1576 if (wrch == NULL)
1577 ret = EINVAL;
1578 else {
1579 struct snd_dbuf *bs;
1580 CHN_LOCK(wrch);
1581 while (wrch->inprog != 0)
1582 cv_wait(&wrch->cv, wrch->lock);
1583 bs = wrch->bufsoft;
1584 if ((bs->shadbuf != NULL) && (bs->sl > 0)) {
1585 sndbuf_softreset(bs);
1586 sndbuf_acquire(bs, bs->shadbuf, bs->sl);
1587 bs->sl = 0;
1588 chn_start(wrch, 0);
1589 }
1590 CHN_UNLOCK(wrch);
1591 }
1592 break;
1593
1594 case SNDCTL_DSP_CURRENT_OPTR:
1595 case SNDCTL_DSP_CURRENT_IPTR:
1596 /**
1597 * @note Changing formats resets the buffer counters, which differs
1598 * from the 4Front drivers. However, I don't expect this to be
1599 * much of a problem.
1600 *
1601 * @note In a test where @c CURRENT_OPTR is called immediately after write
1602 * returns, this driver is about 32K samples behind whereas
1603 * 4Front's is about 8K samples behind. Should determine source
1604 * of discrepancy, even if only out of curiosity.
1605 *
1606 * @todo Actually test SNDCTL_DSP_CURRENT_IPTR.
1607 */
1608 chn = (cmd == SNDCTL_DSP_CURRENT_OPTR) ? wrch : rdch;
1609 if (chn == NULL)
1610 ret = EINVAL;
1611 else {
1612 struct snd_dbuf *bs;
1613 /* int tmp; */
1614
1615 oss_count_t *oc = (oss_count_t *)arg;
1616
1617 CHN_LOCK(chn);
1618 bs = chn->bufsoft;
1619#if 0
1620 tmp = (sndbuf_getsize(b) + chn_getptr(chn) - sndbuf_gethwptr(b)) % sndbuf_getsize(b);
1621 oc->samples = (sndbuf_gettotal(b) + tmp) / sndbuf_getbps(b);
1622 oc->fifo_samples = (sndbuf_getready(b) - tmp) / sndbuf_getbps(b);
1623#else
1624 oc->samples = sndbuf_gettotal(bs) / sndbuf_getbps(bs);
1625 oc->fifo_samples = sndbuf_getready(bs) / sndbuf_getbps(bs);
1626#endif
1627 CHN_UNLOCK(chn);
1628 }
1629 break;
1630
1631 case SNDCTL_DSP_HALT_OUTPUT:
1632 case SNDCTL_DSP_HALT_INPUT:
1633 chn = (cmd == SNDCTL_DSP_HALT_OUTPUT) ? wrch : rdch;
1634 if (chn == NULL)
1635 ret = EINVAL;
1636 else {
1637 CHN_LOCK(chn);
1638 chn_abort(chn);
1639 CHN_UNLOCK(chn);
1640 }
1641 break;
1642
1643 case SNDCTL_DSP_LOW_WATER:
1644 /*
1645 * Set the number of bytes required to attract attention by
1646 * select/poll.
1647 */
1648 if (wrch != NULL) {
1649 CHN_LOCK(wrch);
1650 wrch->lw = (*arg_i > 1) ? *arg_i : 1;
1651 CHN_UNLOCK(wrch);
1652 }
1653 if (rdch != NULL) {
1654 CHN_LOCK(rdch);
1655 rdch->lw = (*arg_i > 1) ? *arg_i : 1;
1656 CHN_UNLOCK(rdch);
1657 }
1658 break;
1659
1660 case SNDCTL_DSP_GETERROR:
1661 /*
1662 * OSSv4 docs: "All errors and counters will automatically be
1663 * cleared to zeroes after the call so each call will return only
1664 * the errors that occurred after the previous invocation. ... The
1665 * play_underruns and rec_overrun fields are the only usefull fields
1666 * returned by OSS 4.0."
1667 */
1668 {
1669 audio_errinfo *ei = (audio_errinfo *)arg;
1670
1671 bzero((void *)ei, sizeof(*ei));
1672
1673 if (wrch != NULL) {
1674 CHN_LOCK(wrch);
1675 ei->play_underruns = wrch->xruns;
1676 wrch->xruns = 0;
1677 CHN_UNLOCK(wrch);
1678 }
1679 if (rdch != NULL) {
1680 CHN_LOCK(rdch);
1681 ei->rec_overruns = rdch->xruns;
1682 rdch->xruns = 0;
1683 CHN_UNLOCK(rdch);
1684 }
1685 }
1686 break;
1687
1688 case SNDCTL_DSP_SYNCGROUP:
|
| 1689 PCM_ACQUIRE_QUICK(d);
|
1454 ret = dsp_oss_syncgroup(wrch, rdch, (oss_syncgroup *)arg);
| 1690 ret = dsp_oss_syncgroup(wrch, rdch, (oss_syncgroup *)arg);
|
| 1691 PCM_RELEASE_QUICK(d);
|
1455 break;
1456
1457 case SNDCTL_DSP_SYNCSTART:
| 1692 break;
1693
1694 case SNDCTL_DSP_SYNCSTART:
|
| 1695 PCM_ACQUIRE_QUICK(d);
|
1458 ret = dsp_oss_syncstart(*arg_i);
| 1696 ret = dsp_oss_syncstart(*arg_i);
|
| 1697 PCM_RELEASE_QUICK(d);
|
1459 break;
1460
1461 case SNDCTL_DSP_POLICY:
| 1698 break;
1699
1700 case SNDCTL_DSP_POLICY:
|
| 1701 PCM_ACQUIRE_QUICK(d);
|
1462 ret = dsp_oss_policy(wrch, rdch, *arg_i);
| 1702 ret = dsp_oss_policy(wrch, rdch, *arg_i);
|
| 1703 PCM_RELEASE_QUICK(d);
|
1463 break;
1464
1465#ifdef OSSV4_EXPERIMENT
1466 /*
1467 * XXX The following ioctls are not yet supported and just return
1468 * EINVAL.
1469 */
1470 case SNDCTL_DSP_GETOPEAKS:
1471 case SNDCTL_DSP_GETIPEAKS:
1472 chn = (cmd == SNDCTL_DSP_GETOPEAKS) ? wrch : rdch;
1473 if (chn == NULL)
1474 ret = EINVAL;
1475 else {
1476 oss_peaks_t *op = (oss_peaks_t *)arg;
1477 int lpeak, rpeak;
1478
1479 CHN_LOCK(chn);
1480 ret = chn_getpeaks(chn, &lpeak, &rpeak);
1481 if (ret == -1)
1482 ret = EINVAL;
1483 else {
1484 (*op)[0] = lpeak;
1485 (*op)[1] = rpeak;
1486 }
1487 CHN_UNLOCK(chn);
1488 }
1489 break;
1490
| 1704 break;
1705
1706#ifdef OSSV4_EXPERIMENT
1707 /*
1708 * XXX The following ioctls are not yet supported and just return
1709 * EINVAL.
1710 */
1711 case SNDCTL_DSP_GETOPEAKS:
1712 case SNDCTL_DSP_GETIPEAKS:
1713 chn = (cmd == SNDCTL_DSP_GETOPEAKS) ? wrch : rdch;
1714 if (chn == NULL)
1715 ret = EINVAL;
1716 else {
1717 oss_peaks_t *op = (oss_peaks_t *)arg;
1718 int lpeak, rpeak;
1719
1720 CHN_LOCK(chn);
1721 ret = chn_getpeaks(chn, &lpeak, &rpeak);
1722 if (ret == -1)
1723 ret = EINVAL;
1724 else {
1725 (*op)[0] = lpeak;
1726 (*op)[1] = rpeak;
1727 }
1728 CHN_UNLOCK(chn);
1729 }
1730 break;
1731
|
| 1732 /*
1733 * XXX Once implemented, revisit this for proper cv protection
1734 * (if necessary).
1735 */
|
1491 case SNDCTL_DSP_COOKEDMODE:
1492 ret = dsp_oss_cookedmode(wrch, rdch, *arg_i);
1493 break;
1494 case SNDCTL_DSP_GET_CHNORDER:
1495 ret = dsp_oss_getchnorder(wrch, rdch, (unsigned long long *)arg);
1496 break;
1497 case SNDCTL_DSP_SET_CHNORDER:
1498 ret = dsp_oss_setchnorder(wrch, rdch, (unsigned long long *)arg);
1499 break;
1500 case SNDCTL_GETLABEL:
1501 ret = dsp_oss_getlabel(wrch, rdch, (oss_label_t *)arg);
1502 break;
1503 case SNDCTL_SETLABEL:
1504 ret = dsp_oss_setlabel(wrch, rdch, (oss_label_t *)arg);
1505 break;
1506 case SNDCTL_GETSONG:
1507 ret = dsp_oss_getsong(wrch, rdch, (oss_longname_t *)arg);
1508 break;
1509 case SNDCTL_SETSONG:
1510 ret = dsp_oss_setsong(wrch, rdch, (oss_longname_t *)arg);
1511 break;
1512 case SNDCTL_SETNAME:
1513 ret = dsp_oss_setname(wrch, rdch, (oss_longname_t *)arg);
1514 break;
1515#if 0
1516 /**
1517 * @note The SNDCTL_CARDINFO ioctl was omitted per 4Front developer
1518 * documentation. "The usability of this call is very limited. It's
1519 * provided only for completeness of the API. OSS API doesn't have
1520 * any concept of card. Any information returned by this ioctl calld
1521 * is reserved exclusively for the utility programs included in the
1522 * OSS package. Applications should not try to use for this
1523 * information in any ways."
1524 */
1525 case SNDCTL_CARDINFO:
1526 ret = EINVAL;
1527 break;
1528 /**
1529 * @note The S/PDIF interface ioctls, @c SNDCTL_DSP_READCTL and
1530 * @c SNDCTL_DSP_WRITECTL have been omitted at the suggestion of
1531 * 4Front Technologies.
1532 */
1533 case SNDCTL_DSP_READCTL:
1534 case SNDCTL_DSP_WRITECTL:
1535 ret = EINVAL;
1536 break;
1537#endif /* !0 (explicitly omitted ioctls) */
1538
1539#endif /* !OSSV4_EXPERIMENT */
1540 case SNDCTL_DSP_MAPINBUF:
1541 case SNDCTL_DSP_MAPOUTBUF:
1542 case SNDCTL_DSP_SETSYNCRO:
1543 /* undocumented */
1544
1545 case SNDCTL_DSP_SUBDIVIDE:
1546 case SOUND_PCM_WRITE_FILTER:
1547 case SOUND_PCM_READ_FILTER:
1548 /* dunno what these do, don't sound important */
1549
1550 default:
1551 DEB(printf("default ioctl fn 0x%08lx fail\n", cmd));
1552 ret = EINVAL;
1553 break;
1554 }
| 1736 case SNDCTL_DSP_COOKEDMODE:
1737 ret = dsp_oss_cookedmode(wrch, rdch, *arg_i);
1738 break;
1739 case SNDCTL_DSP_GET_CHNORDER:
1740 ret = dsp_oss_getchnorder(wrch, rdch, (unsigned long long *)arg);
1741 break;
1742 case SNDCTL_DSP_SET_CHNORDER:
1743 ret = dsp_oss_setchnorder(wrch, rdch, (unsigned long long *)arg);
1744 break;
1745 case SNDCTL_GETLABEL:
1746 ret = dsp_oss_getlabel(wrch, rdch, (oss_label_t *)arg);
1747 break;
1748 case SNDCTL_SETLABEL:
1749 ret = dsp_oss_setlabel(wrch, rdch, (oss_label_t *)arg);
1750 break;
1751 case SNDCTL_GETSONG:
1752 ret = dsp_oss_getsong(wrch, rdch, (oss_longname_t *)arg);
1753 break;
1754 case SNDCTL_SETSONG:
1755 ret = dsp_oss_setsong(wrch, rdch, (oss_longname_t *)arg);
1756 break;
1757 case SNDCTL_SETNAME:
1758 ret = dsp_oss_setname(wrch, rdch, (oss_longname_t *)arg);
1759 break;
1760#if 0
1761 /**
1762 * @note The SNDCTL_CARDINFO ioctl was omitted per 4Front developer
1763 * documentation. "The usability of this call is very limited. It's
1764 * provided only for completeness of the API. OSS API doesn't have
1765 * any concept of card. Any information returned by this ioctl calld
1766 * is reserved exclusively for the utility programs included in the
1767 * OSS package. Applications should not try to use for this
1768 * information in any ways."
1769 */
1770 case SNDCTL_CARDINFO:
1771 ret = EINVAL;
1772 break;
1773 /**
1774 * @note The S/PDIF interface ioctls, @c SNDCTL_DSP_READCTL and
1775 * @c SNDCTL_DSP_WRITECTL have been omitted at the suggestion of
1776 * 4Front Technologies.
1777 */
1778 case SNDCTL_DSP_READCTL:
1779 case SNDCTL_DSP_WRITECTL:
1780 ret = EINVAL;
1781 break;
1782#endif /* !0 (explicitly omitted ioctls) */
1783
1784#endif /* !OSSV4_EXPERIMENT */
1785 case SNDCTL_DSP_MAPINBUF:
1786 case SNDCTL_DSP_MAPOUTBUF:
1787 case SNDCTL_DSP_SETSYNCRO:
1788 /* undocumented */
1789
1790 case SNDCTL_DSP_SUBDIVIDE:
1791 case SOUND_PCM_WRITE_FILTER:
1792 case SOUND_PCM_READ_FILTER:
1793 /* dunno what these do, don't sound important */
1794
1795 default:
1796 DEB(printf("default ioctl fn 0x%08lx fail\n", cmd));
1797 ret = EINVAL;
1798 break;
1799 }
|
| 1800
|
1555 relchns(i_dev, rdch, wrch, 0);
| 1801 relchns(i_dev, rdch, wrch, 0);
|
1556 return ret;
| 1802
1803 PCM_GIANT_LEAVE(d);
1804
1805 return (ret);
|
1557}
1558
1559static int
1560dsp_poll(struct cdev *i_dev, int events, struct thread *td)
1561{
| 1806}
1807
1808static int
1809dsp_poll(struct cdev *i_dev, int events, struct thread *td)
1810{
|
1562 struct pcm_channel *wrch = NULL, *rdch = NULL;
| 1811 struct snddev_info *d;
1812 struct pcm_channel *wrch, *rdch;
|
1563 int ret, e;
1564
| 1813 int ret, e;
1814
|
| 1815 d = dsp_get_info(i_dev);
1816 if (!DSP_REGISTERED(d, i_dev))
1817 return (EBADF);
1818
1819 PCM_GIANT_ENTER(d);
1820
1821 wrch = NULL;
1822 rdch = NULL;
|
1565 ret = 0;
| 1823 ret = 0;
|
| 1824
|
1566 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1567
| 1825 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1826
|
1568 if (wrch) {
| 1827 if (wrch != NULL && !(wrch->flags & CHN_F_DEAD)) {
|
1569 e = (events & (POLLOUT | POLLWRNORM));
1570 if (e)
1571 ret |= chn_poll(wrch, e, td);
1572 }
| 1828 e = (events & (POLLOUT | POLLWRNORM));
1829 if (e)
1830 ret |= chn_poll(wrch, e, td);
1831 }
|
1573 if (rdch) {
| 1832
1833 if (rdch != NULL && !(rdch->flags & CHN_F_DEAD)) {
|
1574 e = (events & (POLLIN | POLLRDNORM));
1575 if (e)
1576 ret |= chn_poll(rdch, e, td);
1577 }
| 1834 e = (events & (POLLIN | POLLRDNORM));
1835 if (e)
1836 ret |= chn_poll(rdch, e, td);
1837 }
|
| 1838
|
1578 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1579
| 1839 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1840
|
1580 return ret;
| 1841 PCM_GIANT_LEAVE(d);
1842
1843 return (ret);
|
1581}
1582
1583static int
1584dsp_mmap(struct cdev *i_dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot)
1585{
| 1844}
1845
1846static int
1847dsp_mmap(struct cdev *i_dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot)
1848{
|
1586 struct pcm_channel *wrch = NULL, *rdch = NULL, *c;
| 1849 struct snddev_info *d;
1850 struct pcm_channel *wrch, *rdch, *c;
|
1587
| 1851
|
1588 if (nprot & PROT_EXEC)
1589 return -1;
| 1852 /*
1853 * Reject PROT_EXEC by default. It just doesn't makes sense.
1854 * Unfortunately, we have to give up this one due to linux_mmap
1855 * changes.
1856 *
1857 * http://lists.freebsd.org/pipermail/freebsd-emulation/2007-June/003698.html
1858 *
1859 */
1860 if ((nprot & PROT_EXEC) && dsp_mmap_allow_prot_exec == 0)
1861 return (-1);
|
1590
| 1862
|
| 1863 d = dsp_get_info(i_dev);
1864 if (!DSP_REGISTERED(d, i_dev))
1865 return (-1);
1866
1867 PCM_GIANT_ENTER(d);
1868
|
1591 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
| 1869 getchns(i_dev, &rdch, &wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
|
1592#if 0
| 1870
|
1593 /*
| 1871 /*
|
1594 * XXX the linux api uses the nprot to select read/write buffer
1595 * our vm system doesn't allow this, so force write buffer
| 1872 * XXX The linux api uses the nprot to select read/write buffer
1873 * our vm system doesn't allow this, so force write buffer.
1874 *
1875 * This is just a quack to fool full-duplex mmap, so that at
1876 * least playback _or_ recording works. If you really got the
1877 * urge to make _both_ work at the same time, avoid O_RDWR.
1878 * Just open each direction separately and mmap() it.
1879 *
1880 * Failure is not an option due to INVARIANTS check within
1881 * device_pager.c, which means, we have to give up one over
1882 * another.
|
1596 */
| 1883 */
|
| 1884 c = (wrch != NULL) ? wrch : rdch;
|
1597
| 1885
|
1598 if (wrch && (nprot & PROT_WRITE)) {
1599 c = wrch;
1600 } else if (rdch && (nprot & PROT_READ)) {
1601 c = rdch;
1602 } else {
1603 return -1;
1604 }
1605#else
1606 c = wrch;
1607#endif
1608
1609 if (c == NULL) {
| 1886 if (c == NULL || (c->flags & CHN_F_MMAP_INVALID) ||
1887 offset >= sndbuf_getsize(c->bufsoft) ||
1888 (wrch != NULL && (wrch->flags & CHN_F_MMAP_INVALID)) ||
1889 (rdch != NULL && (rdch->flags & CHN_F_MMAP_INVALID))) {
|
1610 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
| 1890 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
|
1611 return -1;
| 1891 PCM_GIANT_EXIT(d);
1892 return (-1);
|
1612 }
1613
| 1893 }
1894
|
1614 if (offset >= sndbuf_getsize(c->bufsoft)) {
1615 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1616 return -1;
1617 }
| 1895 /* XXX full-duplex quack. */
1896 if (wrch != NULL)
1897 wrch->flags |= CHN_F_MAPPED;
1898 if (rdch != NULL)
1899 rdch->flags |= CHN_F_MAPPED;
|
1618
| 1900
|
1619 if (!(c->flags & CHN_F_MAPPED))
1620 c->flags |= CHN_F_MAPPED;
1621
| |
1622 *paddr = vtophys(sndbuf_getbufofs(c->bufsoft, offset));
1623 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1624
| 1901 *paddr = vtophys(sndbuf_getbufofs(c->bufsoft, offset));
1902 relchns(i_dev, rdch, wrch, SD_F_PRIO_RD | SD_F_PRIO_WR);
1903
|
1625 return 0;
| 1904 PCM_GIANT_LEAVE(d);
1905
1906 return (0);
|
1626}
1627
1628#ifdef USING_DEVFS
1629
1630/* So much for dev_stdclone() */
1631static int
1632dsp_stdclone(char *name, char *namep, char *sep, int use_sep, int *u, int *c)
1633{
1634 size_t len;
1635
1636 len = strlen(namep);
1637
1638 if (bcmp(name, namep, len) != 0)
1639 return (ENODEV);
1640
1641 name += len;
1642
1643 if (isdigit(*name) == 0)
1644 return (ENODEV);
1645
1646 len = strlen(sep);
1647
1648 if (*name == '0' && !(name[1] == '\0' || bcmp(name + 1, sep, len) == 0))
1649 return (ENODEV);
1650
1651 for (*u = 0; isdigit(*name) != 0; name++) {
1652 *u *= 10;
1653 *u += *name - '0';
1654 if (*u > dsp_umax)
1655 return (ENODEV);
1656 }
1657
1658 if (*name == '\0')
1659 return ((use_sep == 0) ? 0 : ENODEV);
1660
1661 if (bcmp(name, sep, len) != 0 || isdigit(name[len]) == 0)
1662 return (ENODEV);
1663
1664 name += len;
1665
1666 if (*name == '0' && name[1] != '\0')
1667 return (ENODEV);
1668
1669 for (*c = 0; isdigit(*name) != 0; name++) {
1670 *c *= 10;
1671 *c += *name - '0';
1672 if (*c > dsp_cmax)
1673 return (ENODEV);
1674 }
1675
1676 if (*name != '\0')
1677 return (ENODEV);
1678
1679 return (0);
1680}
1681
1682static void
1683dsp_clone(void *arg,
1684#if __FreeBSD_version >= 600034
1685 struct ucred *cred,
1686#endif
1687 char *name, int namelen, struct cdev **dev)
1688{
1689 struct snddev_info *d;
1690 struct snd_clone_entry *ce;
1691 struct pcm_channel *c;
1692 int i, unit, udcmask, cunit, devtype, devhw, devcmax, tumax;
1693 char *devname, *devsep;
1694
1695 KASSERT(dsp_umax >= 0 && dsp_cmax >= 0, ("Uninitialized unit!"));
1696
1697 if (*dev != NULL)
1698 return;
1699
1700 unit = -1;
1701 cunit = -1;
1702 devtype = -1;
1703 devhw = 0;
1704 devcmax = -1;
1705 tumax = -1;
1706 devname = NULL;
1707 devsep = NULL;
1708
| 1907}
1908
1909#ifdef USING_DEVFS
1910
1911/* So much for dev_stdclone() */
1912static int
1913dsp_stdclone(char *name, char *namep, char *sep, int use_sep, int *u, int *c)
1914{
1915 size_t len;
1916
1917 len = strlen(namep);
1918
1919 if (bcmp(name, namep, len) != 0)
1920 return (ENODEV);
1921
1922 name += len;
1923
1924 if (isdigit(*name) == 0)
1925 return (ENODEV);
1926
1927 len = strlen(sep);
1928
1929 if (*name == '0' && !(name[1] == '\0' || bcmp(name + 1, sep, len) == 0))
1930 return (ENODEV);
1931
1932 for (*u = 0; isdigit(*name) != 0; name++) {
1933 *u *= 10;
1934 *u += *name - '0';
1935 if (*u > dsp_umax)
1936 return (ENODEV);
1937 }
1938
1939 if (*name == '\0')
1940 return ((use_sep == 0) ? 0 : ENODEV);
1941
1942 if (bcmp(name, sep, len) != 0 || isdigit(name[len]) == 0)
1943 return (ENODEV);
1944
1945 name += len;
1946
1947 if (*name == '0' && name[1] != '\0')
1948 return (ENODEV);
1949
1950 for (*c = 0; isdigit(*name) != 0; name++) {
1951 *c *= 10;
1952 *c += *name - '0';
1953 if (*c > dsp_cmax)
1954 return (ENODEV);
1955 }
1956
1957 if (*name != '\0')
1958 return (ENODEV);
1959
1960 return (0);
1961}
1962
1963static void
1964dsp_clone(void *arg,
1965#if __FreeBSD_version >= 600034
1966 struct ucred *cred,
1967#endif
1968 char *name, int namelen, struct cdev **dev)
1969{
1970 struct snddev_info *d;
1971 struct snd_clone_entry *ce;
1972 struct pcm_channel *c;
1973 int i, unit, udcmask, cunit, devtype, devhw, devcmax, tumax;
1974 char *devname, *devsep;
1975
1976 KASSERT(dsp_umax >= 0 && dsp_cmax >= 0, ("Uninitialized unit!"));
1977
1978 if (*dev != NULL)
1979 return;
1980
1981 unit = -1;
1982 cunit = -1;
1983 devtype = -1;
1984 devhw = 0;
1985 devcmax = -1;
1986 tumax = -1;
1987 devname = NULL;
1988 devsep = NULL;
1989
|
1709 for (i = 0; i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])) &&
1710 unit == -1; i++) {
| 1990 for (i = 0; unit == -1 &&
1991 i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])); i++) {
|
1711 devtype = dsp_cdevs[i].type;
1712 devname = dsp_cdevs[i].name;
1713 devsep = dsp_cdevs[i].sep;
1714 devhw = dsp_cdevs[i].hw;
1715 devcmax = dsp_cdevs[i].max - 1;
1716 if (strcmp(name, devname) == 0)
1717 unit = snd_unit;
1718 else if (dsp_stdclone(name, devname, devsep,
1719 dsp_cdevs[i].use_sep, &unit, &cunit) != 0) {
1720 unit = -1;
1721 cunit = -1;
1722 }
1723 }
1724
1725 d = devclass_get_softc(pcm_devclass, unit);
| 1992 devtype = dsp_cdevs[i].type;
1993 devname = dsp_cdevs[i].name;
1994 devsep = dsp_cdevs[i].sep;
1995 devhw = dsp_cdevs[i].hw;
1996 devcmax = dsp_cdevs[i].max - 1;
1997 if (strcmp(name, devname) == 0)
1998 unit = snd_unit;
1999 else if (dsp_stdclone(name, devname, devsep,
2000 dsp_cdevs[i].use_sep, &unit, &cunit) != 0) {
2001 unit = -1;
2002 cunit = -1;
2003 }
2004 }
2005
2006 d = devclass_get_softc(pcm_devclass, unit);
|
1726 if (d == NULL || d->clones == NULL)
| 2007 if (!PCM_REGISTERED(d) || d->clones == NULL)
|
1727 return;
1728
| 2008 return;
2009
|
| 2010 /* XXX Need Giant magic entry ??? */
2011
|
1729 pcm_lock(d);
1730 if (snd_clone_disabled(d->clones)) {
1731 pcm_unlock(d);
1732 return;
1733 }
1734
| 2012 pcm_lock(d);
2013 if (snd_clone_disabled(d->clones)) {
2014 pcm_unlock(d);
2015 return;
2016 }
2017
|
| 2018 PCM_WAIT(d);
2019 PCM_ACQUIRE(d);
2020 pcm_unlock(d);
2021
|
1735 udcmask = snd_u2unit(unit) | snd_d2unit(devtype);
1736
1737 if (devhw != 0) {
1738 KASSERT(devcmax <= dsp_cmax,
1739 ("overflow: devcmax=%d, dsp_cmax=%d", devcmax, dsp_cmax));
1740 if (cunit > devcmax) {
| 2022 udcmask = snd_u2unit(unit) | snd_d2unit(devtype);
2023
2024 if (devhw != 0) {
2025 KASSERT(devcmax <= dsp_cmax,
2026 ("overflow: devcmax=%d, dsp_cmax=%d", devcmax, dsp_cmax));
2027 if (cunit > devcmax) {
|
1741 pcm_unlock(d);
| 2028 PCM_RELEASE_QUICK(d);
|
1742 return;
1743 }
1744 udcmask |= snd_c2unit(cunit);
1745 CHN_FOREACH(c, d, channels.pcm) {
1746 CHN_LOCK(c);
1747 if (c->unit != udcmask) {
1748 CHN_UNLOCK(c);
1749 continue;
1750 }
1751 CHN_UNLOCK(c);
1752 udcmask &= ~snd_c2unit(cunit);
1753 /*
1754 * Temporarily increase clone maxunit to overcome
1755 * vchan flexibility.
1756 *
1757 * # sysctl dev.pcm.0.play.vchans=256
1758 * dev.pcm.0.play.vchans: 1 -> 256
1759 * # cat /dev/zero > /dev/dsp0.vp255 &
1760 * [1] 17296
1761 * # sysctl dev.pcm.0.play.vchans=0
1762 * dev.pcm.0.play.vchans: 256 -> 1
1763 * # fg
1764 * [1] + running cat /dev/zero > /dev/dsp0.vp255
1765 * ^C
1766 * # cat /dev/zero > /dev/dsp0.vp255
1767 * zsh: operation not supported: /dev/dsp0.vp255
1768 */
1769 tumax = snd_clone_getmaxunit(d->clones);
1770 if (cunit > tumax)
1771 snd_clone_setmaxunit(d->clones, cunit);
1772 else
1773 tumax = -1;
1774 goto dsp_clone_alloc;
1775 }
1776 /*
1777 * Ok, so we're requesting unallocated vchan, but still
1778 * within maximum vchan limit.
1779 */
1780 if (((devtype == SND_DEV_DSPHW_VPLAY && d->pvchancount > 0) ||
1781 (devtype == SND_DEV_DSPHW_VREC && d->rvchancount > 0)) &&
1782 cunit < snd_maxautovchans) {
1783 udcmask &= ~snd_c2unit(cunit);
1784 tumax = snd_clone_getmaxunit(d->clones);
1785 if (cunit > tumax)
1786 snd_clone_setmaxunit(d->clones, cunit);
1787 else
1788 tumax = -1;
1789 goto dsp_clone_alloc;
1790 }
| 2029 return;
2030 }
2031 udcmask |= snd_c2unit(cunit);
2032 CHN_FOREACH(c, d, channels.pcm) {
2033 CHN_LOCK(c);
2034 if (c->unit != udcmask) {
2035 CHN_UNLOCK(c);
2036 continue;
2037 }
2038 CHN_UNLOCK(c);
2039 udcmask &= ~snd_c2unit(cunit);
2040 /*
2041 * Temporarily increase clone maxunit to overcome
2042 * vchan flexibility.
2043 *
2044 * # sysctl dev.pcm.0.play.vchans=256
2045 * dev.pcm.0.play.vchans: 1 -> 256
2046 * # cat /dev/zero > /dev/dsp0.vp255 &
2047 * [1] 17296
2048 * # sysctl dev.pcm.0.play.vchans=0
2049 * dev.pcm.0.play.vchans: 256 -> 1
2050 * # fg
2051 * [1] + running cat /dev/zero > /dev/dsp0.vp255
2052 * ^C
2053 * # cat /dev/zero > /dev/dsp0.vp255
2054 * zsh: operation not supported: /dev/dsp0.vp255
2055 */
2056 tumax = snd_clone_getmaxunit(d->clones);
2057 if (cunit > tumax)
2058 snd_clone_setmaxunit(d->clones, cunit);
2059 else
2060 tumax = -1;
2061 goto dsp_clone_alloc;
2062 }
2063 /*
2064 * Ok, so we're requesting unallocated vchan, but still
2065 * within maximum vchan limit.
2066 */
2067 if (((devtype == SND_DEV_DSPHW_VPLAY && d->pvchancount > 0) ||
2068 (devtype == SND_DEV_DSPHW_VREC && d->rvchancount > 0)) &&
2069 cunit < snd_maxautovchans) {
2070 udcmask &= ~snd_c2unit(cunit);
2071 tumax = snd_clone_getmaxunit(d->clones);
2072 if (cunit > tumax)
2073 snd_clone_setmaxunit(d->clones, cunit);
2074 else
2075 tumax = -1;
2076 goto dsp_clone_alloc;
2077 }
|
1791 pcm_unlock(d);
| 2078 PCM_RELEASE_QUICK(d);
|
1792 return;
1793 }
1794
1795dsp_clone_alloc:
1796 ce = snd_clone_alloc(d->clones, dev, &cunit, udcmask);
1797 if (tumax != -1)
1798 snd_clone_setmaxunit(d->clones, tumax);
1799 if (ce != NULL) {
1800 udcmask |= snd_c2unit(cunit);
| 2079 return;
2080 }
2081
2082dsp_clone_alloc:
2083 ce = snd_clone_alloc(d->clones, dev, &cunit, udcmask);
2084 if (tumax != -1)
2085 snd_clone_setmaxunit(d->clones, tumax);
2086 if (ce != NULL) {
2087 udcmask |= snd_c2unit(cunit);
|
1801 pcm_unlock(d);
| |
1802 *dev = make_dev(&dsp_cdevsw, unit2minor(udcmask),
1803 UID_ROOT, GID_WHEEL, 0666, "%s%d%s%d",
1804 devname, unit, devsep, cunit);
| 2088 *dev = make_dev(&dsp_cdevsw, unit2minor(udcmask),
2089 UID_ROOT, GID_WHEEL, 0666, "%s%d%s%d",
2090 devname, unit, devsep, cunit);
|
1805 pcm_lock(d);
| |
1806 snd_clone_register(ce, *dev);
1807 }
| 2091 snd_clone_register(ce, *dev);
2092 }
|
1808 pcm_unlock(d);
| |
1809
| 2093
|
| 2094 PCM_RELEASE_QUICK(d);
2095
|
1810 if (*dev != NULL)
1811 dev_ref(*dev);
1812}
1813
1814static void
1815dsp_sysinit(void *p)
1816{
1817 if (dsp_ehtag != NULL)
1818 return;
1819 /* initialize unit numbering */
1820 snd_unit_init();
1821 dsp_umax = PCMMAXUNIT;
1822 dsp_cmax = PCMMAXCHAN;
1823 dsp_ehtag = EVENTHANDLER_REGISTER(dev_clone, dsp_clone, 0, 1000);
1824}
1825
1826static void
1827dsp_sysuninit(void *p)
1828{
1829 if (dsp_ehtag == NULL)
1830 return;
1831 EVENTHANDLER_DEREGISTER(dev_clone, dsp_ehtag);
1832 dsp_ehtag = NULL;
1833}
1834
1835SYSINIT(dsp_sysinit, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, dsp_sysinit, NULL);
1836SYSUNINIT(dsp_sysuninit, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, dsp_sysuninit, NULL);
1837#endif
1838
1839char *
1840dsp_unit2name(char *buf, size_t len, int unit)
1841{
1842 int i, dtype;
1843
1844 KASSERT(buf != NULL && len != 0,
1845 ("bogus buf=%p len=%ju", buf, (uintmax_t)len));
1846
1847 dtype = snd_unit2d(unit);
1848
1849 for (i = 0; i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])); i++) {
1850 if (dtype != dsp_cdevs[i].type)
1851 continue;
1852 snprintf(buf, len, "%s%d%s%d", dsp_cdevs[i].name,
1853 snd_unit2u(unit), dsp_cdevs[i].sep, snd_unit2c(unit));
1854 return (buf);
1855 }
1856
1857 return (NULL);
1858}
1859
1860/**
1861 * @brief Handler for SNDCTL_AUDIOINFO.
1862 *
1863 * Gathers information about the audio device specified in ai->dev. If
1864 * ai->dev == -1, then this function gathers information about the current
1865 * device. If the call comes in on a non-audio device and ai->dev == -1,
1866 * return EINVAL.
1867 *
1868 * This routine is supposed to go practically straight to the hardware,
1869 * getting capabilities directly from the sound card driver, side-stepping
1870 * the intermediate channel interface.
1871 *
1872 * Note, however, that the usefulness of this command is significantly
1873 * decreased when requesting info about any device other than the one serving
1874 * the request. While each snddev_channel refers to a specific device node,
1875 * the converse is *not* true. Currently, when a sound device node is opened,
1876 * the sound subsystem scans for an available audio channel (or channels, if
1877 * opened in read+write) and then assigns them to the si_drv[12] private
1878 * data fields. As a result, any information returned linking a channel to
1879 * a specific character device isn't necessarily accurate.
1880 *
1881 * @note
1882 * Calling threads must not hold any snddev_info or pcm_channel locks.
1883 *
1884 * @param dev device on which the ioctl was issued
1885 * @param ai ioctl request data container
1886 *
1887 * @retval 0 success
1888 * @retval EINVAL ai->dev specifies an invalid device
1889 *
1890 * @todo Verify correctness of Doxygen tags. ;)
1891 */
1892int
1893dsp_oss_audioinfo(struct cdev *i_dev, oss_audioinfo *ai)
1894{
1895 struct pcmchan_caps *caps;
1896 struct pcm_channel *ch;
1897 struct snddev_info *d;
1898 uint32_t fmts;
| 2096 if (*dev != NULL)
2097 dev_ref(*dev);
2098}
2099
2100static void
2101dsp_sysinit(void *p)
2102{
2103 if (dsp_ehtag != NULL)
2104 return;
2105 /* initialize unit numbering */
2106 snd_unit_init();
2107 dsp_umax = PCMMAXUNIT;
2108 dsp_cmax = PCMMAXCHAN;
2109 dsp_ehtag = EVENTHANDLER_REGISTER(dev_clone, dsp_clone, 0, 1000);
2110}
2111
2112static void
2113dsp_sysuninit(void *p)
2114{
2115 if (dsp_ehtag == NULL)
2116 return;
2117 EVENTHANDLER_DEREGISTER(dev_clone, dsp_ehtag);
2118 dsp_ehtag = NULL;
2119}
2120
2121SYSINIT(dsp_sysinit, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, dsp_sysinit, NULL);
2122SYSUNINIT(dsp_sysuninit, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, dsp_sysuninit, NULL);
2123#endif
2124
2125char *
2126dsp_unit2name(char *buf, size_t len, int unit)
2127{
2128 int i, dtype;
2129
2130 KASSERT(buf != NULL && len != 0,
2131 ("bogus buf=%p len=%ju", buf, (uintmax_t)len));
2132
2133 dtype = snd_unit2d(unit);
2134
2135 for (i = 0; i < (sizeof(dsp_cdevs) / sizeof(dsp_cdevs[0])); i++) {
2136 if (dtype != dsp_cdevs[i].type)
2137 continue;
2138 snprintf(buf, len, "%s%d%s%d", dsp_cdevs[i].name,
2139 snd_unit2u(unit), dsp_cdevs[i].sep, snd_unit2c(unit));
2140 return (buf);
2141 }
2142
2143 return (NULL);
2144}
2145
2146/**
2147 * @brief Handler for SNDCTL_AUDIOINFO.
2148 *
2149 * Gathers information about the audio device specified in ai->dev. If
2150 * ai->dev == -1, then this function gathers information about the current
2151 * device. If the call comes in on a non-audio device and ai->dev == -1,
2152 * return EINVAL.
2153 *
2154 * This routine is supposed to go practically straight to the hardware,
2155 * getting capabilities directly from the sound card driver, side-stepping
2156 * the intermediate channel interface.
2157 *
2158 * Note, however, that the usefulness of this command is significantly
2159 * decreased when requesting info about any device other than the one serving
2160 * the request. While each snddev_channel refers to a specific device node,
2161 * the converse is *not* true. Currently, when a sound device node is opened,
2162 * the sound subsystem scans for an available audio channel (or channels, if
2163 * opened in read+write) and then assigns them to the si_drv[12] private
2164 * data fields. As a result, any information returned linking a channel to
2165 * a specific character device isn't necessarily accurate.
2166 *
2167 * @note
2168 * Calling threads must not hold any snddev_info or pcm_channel locks.
2169 *
2170 * @param dev device on which the ioctl was issued
2171 * @param ai ioctl request data container
2172 *
2173 * @retval 0 success
2174 * @retval EINVAL ai->dev specifies an invalid device
2175 *
2176 * @todo Verify correctness of Doxygen tags. ;)
2177 */
2178int
2179dsp_oss_audioinfo(struct cdev *i_dev, oss_audioinfo *ai)
2180{
2181 struct pcmchan_caps *caps;
2182 struct pcm_channel *ch;
2183 struct snddev_info *d;
2184 uint32_t fmts;
|
1899 int i, nchan, ret, *rates, minch, maxch;
| 2185 int i, nchan, *rates, minch, maxch;
|
1900 char *devname, buf[CHN_NAMELEN];
1901
1902 /*
1903 * If probing the device that received the ioctl, make sure it's a
1904 * DSP device. (Users may use this ioctl with /dev/mixer and
1905 * /dev/midi.)
1906 */
| 2186 char *devname, buf[CHN_NAMELEN];
2187
2188 /*
2189 * If probing the device that received the ioctl, make sure it's a
2190 * DSP device. (Users may use this ioctl with /dev/mixer and
2191 * /dev/midi.)
2192 */
|
1907 if ((ai->dev == -1) && (i_dev->si_devsw != &dsp_cdevsw))
1908 return EINVAL;
| 2193 if (ai->dev == -1 && i_dev->si_devsw != &dsp_cdevsw)
2194 return (EINVAL);
|
1909
1910 ch = NULL;
1911 devname = NULL;
1912 nchan = 0;
| 2195
2196 ch = NULL;
2197 devname = NULL;
2198 nchan = 0;
|
1913 ret = 0;
| |
1914 bzero(buf, sizeof(buf));
1915
1916 /*
1917 * Search for the requested audio device (channel). Start by
1918 * iterating over pcm devices.
1919 */
1920 for (i = 0; pcm_devclass != NULL &&
1921 i < devclass_get_maxunit(pcm_devclass); i++) {
1922 d = devclass_get_softc(pcm_devclass, i);
| 2199 bzero(buf, sizeof(buf));
2200
2201 /*
2202 * Search for the requested audio device (channel). Start by
2203 * iterating over pcm devices.
2204 */
2205 for (i = 0; pcm_devclass != NULL &&
2206 i < devclass_get_maxunit(pcm_devclass); i++) {
2207 d = devclass_get_softc(pcm_devclass, i);
|
1923 if (d == NULL)
| 2208 if (!PCM_REGISTERED(d))
|
1924 continue;
1925
| 2209 continue;
2210
|
| 2211 /* XXX Need Giant magic entry ??? */
2212
|
1926 /* See the note in function docblock */
1927 mtx_assert(d->lock, MA_NOTOWNED);
| 2213 /* See the note in function docblock */
2214 mtx_assert(d->lock, MA_NOTOWNED);
|
1928 pcm_inprog(d, 1);
| |
1929 pcm_lock(d);
1930
1931 CHN_FOREACH(ch, d, channels.pcm) {
1932 mtx_assert(ch->lock, MA_NOTOWNED);
1933 CHN_LOCK(ch);
1934 if (ai->dev == -1) {
| 2215 pcm_lock(d);
2216
2217 CHN_FOREACH(ch, d, channels.pcm) {
2218 mtx_assert(ch->lock, MA_NOTOWNED);
2219 CHN_LOCK(ch);
2220 if (ai->dev == -1) {
|
1935 if ((ch == PCM_RDCH(i_dev)) || /* record ch */
1936 (ch == PCM_WRCH(i_dev))) { /* playback ch */
1937 devname = i_dev->si_name;
1938 goto dspfound;
| 2221 if (DSP_REGISTERED(d, i_dev) &&
2222 (ch == PCM_RDCH(i_dev) || /* record ch */
2223 ch == PCM_WRCH(i_dev))) { /* playback ch */
2224 devname = dsp_unit2name(buf,
2225 sizeof(buf), ch->unit);
|
1939 }
1940 } else if (ai->dev == nchan) {
1941 devname = dsp_unit2name(buf, sizeof(buf),
1942 ch->unit);
| 2226 }
2227 } else if (ai->dev == nchan) {
2228 devname = dsp_unit2name(buf, sizeof(buf),
2229 ch->unit);
|
1943 goto dspfound;
| |
1944 }
| 2230 }
|
| 2231 if (devname != NULL)
2232 break;
|
1945 CHN_UNLOCK(ch);
| 2233 CHN_UNLOCK(ch);
|
1946 /*
1947 * XXX I really doubt if this is correct.
1948 */
| |
1949 ++nchan;
1950 }
1951
| 2234 ++nchan;
2235 }
2236
|
1952 pcm_unlock(d);
1953 pcm_inprog(d, -1);
1954 }
| 2237 if (devname != NULL) {
2238 /*
2239 * At this point, the following synchronization stuff
2240 * has happened:
2241 * - a specific PCM device is locked.
2242 * - a specific audio channel has been locked, so be
2243 * sure to unlock when exiting;
2244 */
|
1955
| 2245
|
1956 /* Exhausted the search -- nothing is locked, so return. */
1957 return EINVAL;
| 2246 caps = chn_getcaps(ch);
|
1958
| 2247
|
1959dspfound:
1960 /* Should've found the device, but something isn't right */
1961 if (devname == NULL) {
1962 ret = EINVAL;
1963 goto out;
1964 }
| 2248 /*
2249 * With all handles collected, zero out the user's
2250 * container and begin filling in its fields.
2251 */
2252 bzero((void *)ai, sizeof(oss_audioinfo));
|
1965
| 2253
|
1966 /*
1967 * At this point, the following synchronization stuff has happened:
1968 * - a specific PCM device is locked and its "in progress
1969 * operations" counter has been incremented, so be sure to unlock
1970 * and decrement when exiting;
1971 * - a specific audio channel has been locked, so be sure to unlock
1972 * when exiting;
1973 */
| 2254 ai->dev = nchan;
2255 strlcpy(ai->name, ch->name, sizeof(ai->name));
|
1974
| 2256
|
1975 caps = chn_getcaps(ch);
| 2257 if ((ch->flags & CHN_F_BUSY) == 0)
2258 ai->busy = 0;
2259 else
2260 ai->busy = (ch->direction == PCMDIR_PLAY) ? OPEN_WRITE : OPEN_READ;
|
1976
| 2261
|
1977 /*
1978 * With all handles collected, zero out the user's container and
1979 * begin filling in its fields.
1980 */
1981 bzero((void *)ai, sizeof(oss_audioinfo));
| 2262 /**
2263 * @note
2264 * @c cmd - OSSv4 docs: "Only supported under Linux at
2265 * this moment." Cop-out, I know, but I'll save
2266 * running around in the process table for later.
2267 * Is there a risk of leaking information?
2268 */
2269 ai->pid = ch->pid;
|
1982
| 2270
|
1983 ai->dev = nchan;
1984 strlcpy(ai->name, ch->name, sizeof(ai->name));
| 2271 /*
2272 * These flags stolen from SNDCTL_DSP_GETCAPS handler.
2273 * Note, however, that a single channel operates in
2274 * only one direction, so DSP_CAP_DUPLEX is out.
2275 */
2276 /**
2277 * @todo @c SNDCTL_AUDIOINFO::caps - Make drivers keep
2278 * these in pcmchan::caps?
2279 */
2280 ai->caps = DSP_CAP_REALTIME | DSP_CAP_MMAP | DSP_CAP_TRIGGER;
|
1985
| 2281
|
1986 if ((ch->flags & CHN_F_BUSY) == 0)
1987 ai->busy = 0;
1988 else
1989 ai->busy = (ch->direction == PCMDIR_PLAY) ? OPEN_WRITE : OPEN_READ;
| 2282 /*
2283 * Collect formats supported @b natively by the
2284 * device. Also determine min/max channels. (I.e.,
2285 * mono, stereo, or both?)
2286 *
2287 * If any channel is stereo, maxch = 2;
2288 * if all channels are stereo, minch = 2, too;
2289 * if any channel is mono, minch = 1;
2290 * and if all channels are mono, maxch = 1.
2291 */
2292 minch = 0;
2293 maxch = 0;
2294 fmts = 0;
2295 for (i = 0; caps->fmtlist[i]; i++) {
2296 fmts |= caps->fmtlist[i];
2297 if (caps->fmtlist[i] & AFMT_STEREO) {
2298 minch = (minch == 0) ? 2 : minch;
2299 maxch = 2;
2300 } else {
2301 minch = 1;
2302 maxch = (maxch == 0) ? 1 : maxch;
2303 }
2304 }
|
1990
| 2305
|
1991 /**
1992 * @note
1993 * @c cmd - OSSv4 docs: "Only supported under Linux at this moment."
1994 * Cop-out, I know, but I'll save running around in the process
1995 * table for later. Is there a risk of leaking information?
1996 */
1997 ai->pid = ch->pid;
| 2306 if (ch->direction == PCMDIR_PLAY)
2307 ai->oformats = fmts;
2308 else
2309 ai->iformats = fmts;
|
1998
| 2310
|
1999 /*
2000 * These flags stolen from SNDCTL_DSP_GETCAPS handler. Note, however,
2001 * that a single channel operates in only one direction, so
2002 * DSP_CAP_DUPLEX is out.
2003 */
2004 /**
2005 * @todo @c SNDCTL_AUDIOINFO::caps - Make drivers keep these in
2006 * pcmchan::caps?
2007 */
2008 ai->caps = DSP_CAP_REALTIME | DSP_CAP_MMAP | DSP_CAP_TRIGGER;
| 2311 /**
2312 * @note
2313 * @c magic - OSSv4 docs: "Reserved for internal use
2314 * by OSS."
2315 *
2316 * @par
2317 * @c card_number - OSSv4 docs: "Number of the sound
2318 * card where this device belongs or -1 if this
2319 * information is not available. Applications
2320 * should normally not use this field for any
2321 * purpose."
2322 */
2323 ai->card_number = -1;
2324 /**
2325 * @todo @c song_name - depends first on
2326 * SNDCTL_[GS]ETSONG @todo @c label - depends
2327 * on SNDCTL_[GS]ETLABEL
2328 * @todo @c port_number - routing information?
2329 */
2330 ai->port_number = -1;
2331 ai->mixer_dev = (d->mixer_dev != NULL) ? PCMUNIT(d->mixer_dev) : -1;
2332 /**
2333 * @note
2334 * @c real_device - OSSv4 docs: "Obsolete."
2335 */
2336 ai->real_device = -1;
2337 strlcpy(ai->devnode, devname, sizeof(ai->devnode));
2338 ai->enabled = device_is_attached(d->dev) ? 1 : 0;
2339 /**
2340 * @note
2341 * @c flags - OSSv4 docs: "Reserved for future use."
2342 *
2343 * @note
2344 * @c binding - OSSv4 docs: "Reserved for future use."
2345 *
2346 * @todo @c handle - haven't decided how to generate
2347 * this yet; bus, vendor, device IDs?
2348 */
2349 ai->min_rate = caps->minspeed;
2350 ai->max_rate = caps->maxspeed;
|
2009
| 2351
|
2010 /*
2011 * Collect formats supported @b natively by the device. Also
2012 * determine min/max channels. (I.e., mono, stereo, or both?)
2013 *
2014 * If any channel is stereo, maxch = 2;
2015 * if all channels are stereo, minch = 2, too;
2016 * if any channel is mono, minch = 1;
2017 * and if all channels are mono, maxch = 1.
2018 */
2019 minch = 0;
2020 maxch = 0;
2021 fmts = 0;
2022 for (i = 0; caps->fmtlist[i]; i++) {
2023 fmts |= caps->fmtlist[i];
2024 if (caps->fmtlist[i] & AFMT_STEREO) {
2025 minch = (minch == 0) ? 2 : minch;
2026 maxch = 2;
2027 } else {
2028 minch = 1;
2029 maxch = (maxch == 0) ? 1 : maxch;
2030 }
2031 }
| 2352 ai->min_channels = minch;
2353 ai->max_channels = maxch;
|
2032
| 2354
|
2033 if (ch->direction == PCMDIR_PLAY)
2034 ai->oformats = fmts;
2035 else
2036 ai->iformats = fmts;
| 2355 ai->nrates = chn_getrates(ch, &rates);
2356 if (ai->nrates > OSS_MAX_SAMPLE_RATES)
2357 ai->nrates = OSS_MAX_SAMPLE_RATES;
|
2037
| 2358
|
2038 /**
2039 * @note
2040 * @c magic - OSSv4 docs: "Reserved for internal use by OSS."
2041 *
2042 * @par
2043 * @c card_number - OSSv4 docs: "Number of the sound card where this
2044 * device belongs or -1 if this information is not available.
2045 * Applications should normally not use this field for any
2046 * purpose."
2047 */
2048 ai->card_number = -1;
2049 /**
2050 * @todo @c song_name - depends first on SNDCTL_[GS]ETSONG
2051 * @todo @c label - depends on SNDCTL_[GS]ETLABEL
2052 * @todo @c port_number - routing information?
2053 */
2054 ai->port_number = -1;
2055 ai->mixer_dev = (d->mixer_dev != NULL) ? PCMUNIT(d->mixer_dev) : -1;
2056 /**
2057 * @note
2058 * @c real_device - OSSv4 docs: "Obsolete."
2059 */
2060 ai->real_device = -1;
2061 strlcpy(ai->devnode, devname, sizeof(ai->devnode));
2062 ai->enabled = device_is_attached(d->dev) ? 1 : 0;
2063 /**
2064 * @note
2065 * @c flags - OSSv4 docs: "Reserved for future use."
2066 *
2067 * @note
2068 * @c binding - OSSv4 docs: "Reserved for future use."
2069 *
2070 * @todo @c handle - haven't decided how to generate this yet; bus,
2071 * vendor, device IDs?
2072 */
2073 ai->min_rate = caps->minspeed;
2074 ai->max_rate = caps->maxspeed;
| 2359 for (i = 0; i < ai->nrates; i++)
2360 ai->rates[i] = rates[i];
|
2075
| 2361
|
2076 ai->min_channels = minch;
2077 ai->max_channels = maxch;
| 2362 CHN_UNLOCK(ch);
2363 }
|
2078
| 2364
|
2079 ai->nrates = chn_getrates(ch, &rates);
2080 if (ai->nrates > OSS_MAX_SAMPLE_RATES)
2081 ai->nrates = OSS_MAX_SAMPLE_RATES;
| 2365 pcm_unlock(d);
|
2082
| 2366
|
2083 for (i = 0; i < ai->nrates; i++)
2084 ai->rates[i] = rates[i];
| 2367 if (devname != NULL)
2368 return (0);
2369 }
|
2085
| 2370
|
2086out:
2087 CHN_UNLOCK(ch);
2088 pcm_unlock(d);
2089 pcm_inprog(d, -1);
2090
2091 return ret;
| 2371 /* Exhausted the search -- nothing is locked, so return. */
2372 return (EINVAL);
|
2092}
2093
2094/**
2095 * @brief Assigns a PCM channel to a sync group.
2096 *
2097 * Sync groups are used to enable audio operations on multiple devices
2098 * simultaneously. They may be used with any number of devices and may
2099 * span across applications. Devices are added to groups with
2100 * the SNDCTL_DSP_SYNCGROUP ioctl, and operations are triggered with the
2101 * SNDCTL_DSP_SYNCSTART ioctl.
2102 *
2103 * If the @c id field of the @c group parameter is set to zero, then a new
2104 * sync group is created. Otherwise, wrch and rdch (if set) are added to
2105 * the group specified.
2106 *
2107 * @todo As far as memory allocation, should we assume that things are
2108 * okay and allocate with M_WAITOK before acquiring channel locks,
2109 * freeing later if not?
2110 *
2111 * @param wrch output channel associated w/ device (if any)
2112 * @param rdch input channel associated w/ device (if any)
2113 * @param group Sync group parameters
2114 *
2115 * @retval 0 success
2116 * @retval non-zero error to be propagated upstream
2117 */
2118static int
2119dsp_oss_syncgroup(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_syncgroup *group)
2120{
2121 struct pcmchan_syncmember *smrd, *smwr;
2122 struct pcmchan_syncgroup *sg;
2123 int ret, sg_ids[3];
2124
2125 smrd = NULL;
2126 smwr = NULL;
2127 sg = NULL;
2128 ret = 0;
2129
2130 /*
2131 * Free_unr() may sleep, so store released syncgroup IDs until after
2132 * all locks are released.
2133 */
2134 sg_ids[0] = sg_ids[1] = sg_ids[2] = 0;
2135
2136 PCM_SG_LOCK();
2137
2138 /*
2139 * - Insert channel(s) into group's member list.
2140 * - Set CHN_F_NOTRIGGER on channel(s).
2141 * - Stop channel(s).
2142 */
2143
2144 /*
2145 * If device's channels are already mapped to a group, unmap them.
2146 */
2147 if (wrch) {
2148 CHN_LOCK(wrch);
2149 sg_ids[0] = chn_syncdestroy(wrch);
2150 }
2151
2152 if (rdch) {
2153 CHN_LOCK(rdch);
2154 sg_ids[1] = chn_syncdestroy(rdch);
2155 }
2156
2157 /*
2158 * Verify that mode matches character device properites.
2159 * - Bail if PCM_ENABLE_OUTPUT && wrch == NULL.
2160 * - Bail if PCM_ENABLE_INPUT && rdch == NULL.
2161 */
2162 if (((wrch == NULL) && (group->mode & PCM_ENABLE_OUTPUT)) ||
2163 ((rdch == NULL) && (group->mode & PCM_ENABLE_INPUT))) {
2164 ret = EINVAL;
2165 goto out;
2166 }
2167
2168 /*
2169 * An id of zero indicates the user wants to create a new
2170 * syncgroup.
2171 */
2172 if (group->id == 0) {
2173 sg = (struct pcmchan_syncgroup *)malloc(sizeof(*sg), M_DEVBUF, M_NOWAIT);
2174 if (sg != NULL) {
2175 SLIST_INIT(&sg->members);
2176 sg->id = alloc_unr(pcmsg_unrhdr);
2177
2178 group->id = sg->id;
2179 SLIST_INSERT_HEAD(&snd_pcm_syncgroups, sg, link);
2180 } else
2181 ret = ENOMEM;
2182 } else {
2183 SLIST_FOREACH(sg, &snd_pcm_syncgroups, link) {
2184 if (sg->id == group->id)
2185 break;
2186 }
2187 if (sg == NULL)
2188 ret = EINVAL;
2189 }
2190
2191 /* Couldn't create or find a syncgroup. Fail. */
2192 if (sg == NULL)
2193 goto out;
2194
2195 /*
2196 * Allocate a syncmember, assign it and a channel together, and
2197 * insert into syncgroup.
2198 */
2199 if (group->mode & PCM_ENABLE_INPUT) {
2200 smrd = (struct pcmchan_syncmember *)malloc(sizeof(*smrd), M_DEVBUF, M_NOWAIT);
2201 if (smrd == NULL) {
2202 ret = ENOMEM;
2203 goto out;
2204 }
2205
2206 SLIST_INSERT_HEAD(&sg->members, smrd, link);
2207 smrd->parent = sg;
2208 smrd->ch = rdch;
2209
2210 chn_abort(rdch);
2211 rdch->flags |= CHN_F_NOTRIGGER;
2212 rdch->sm = smrd;
2213 }
2214
2215 if (group->mode & PCM_ENABLE_OUTPUT) {
2216 smwr = (struct pcmchan_syncmember *)malloc(sizeof(*smwr), M_DEVBUF, M_NOWAIT);
2217 if (smwr == NULL) {
2218 ret = ENOMEM;
2219 goto out;
2220 }
2221
2222 SLIST_INSERT_HEAD(&sg->members, smwr, link);
2223 smwr->parent = sg;
2224 smwr->ch = wrch;
2225
2226 chn_abort(wrch);
2227 wrch->flags |= CHN_F_NOTRIGGER;
2228 wrch->sm = smwr;
2229 }
2230
2231
2232out:
2233 if (ret != 0) {
2234 if (smrd != NULL)
2235 free(smrd, M_DEVBUF);
2236 if ((sg != NULL) && SLIST_EMPTY(&sg->members)) {
2237 sg_ids[2] = sg->id;
2238 SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link);
2239 free(sg, M_DEVBUF);
2240 }
2241
2242 if (wrch)
2243 wrch->sm = NULL;
2244 if (rdch)
2245 rdch->sm = NULL;
2246 }
2247
2248 if (wrch)
2249 CHN_UNLOCK(wrch);
2250 if (rdch)
2251 CHN_UNLOCK(rdch);
2252
2253 PCM_SG_UNLOCK();
2254
2255 if (sg_ids[0])
2256 free_unr(pcmsg_unrhdr, sg_ids[0]);
2257 if (sg_ids[1])
2258 free_unr(pcmsg_unrhdr, sg_ids[1]);
2259 if (sg_ids[2])
2260 free_unr(pcmsg_unrhdr, sg_ids[2]);
2261
| 2373}
2374
2375/**
2376 * @brief Assigns a PCM channel to a sync group.
2377 *
2378 * Sync groups are used to enable audio operations on multiple devices
2379 * simultaneously. They may be used with any number of devices and may
2380 * span across applications. Devices are added to groups with
2381 * the SNDCTL_DSP_SYNCGROUP ioctl, and operations are triggered with the
2382 * SNDCTL_DSP_SYNCSTART ioctl.
2383 *
2384 * If the @c id field of the @c group parameter is set to zero, then a new
2385 * sync group is created. Otherwise, wrch and rdch (if set) are added to
2386 * the group specified.
2387 *
2388 * @todo As far as memory allocation, should we assume that things are
2389 * okay and allocate with M_WAITOK before acquiring channel locks,
2390 * freeing later if not?
2391 *
2392 * @param wrch output channel associated w/ device (if any)
2393 * @param rdch input channel associated w/ device (if any)
2394 * @param group Sync group parameters
2395 *
2396 * @retval 0 success
2397 * @retval non-zero error to be propagated upstream
2398 */
2399static int
2400dsp_oss_syncgroup(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_syncgroup *group)
2401{
2402 struct pcmchan_syncmember *smrd, *smwr;
2403 struct pcmchan_syncgroup *sg;
2404 int ret, sg_ids[3];
2405
2406 smrd = NULL;
2407 smwr = NULL;
2408 sg = NULL;
2409 ret = 0;
2410
2411 /*
2412 * Free_unr() may sleep, so store released syncgroup IDs until after
2413 * all locks are released.
2414 */
2415 sg_ids[0] = sg_ids[1] = sg_ids[2] = 0;
2416
2417 PCM_SG_LOCK();
2418
2419 /*
2420 * - Insert channel(s) into group's member list.
2421 * - Set CHN_F_NOTRIGGER on channel(s).
2422 * - Stop channel(s).
2423 */
2424
2425 /*
2426 * If device's channels are already mapped to a group, unmap them.
2427 */
2428 if (wrch) {
2429 CHN_LOCK(wrch);
2430 sg_ids[0] = chn_syncdestroy(wrch);
2431 }
2432
2433 if (rdch) {
2434 CHN_LOCK(rdch);
2435 sg_ids[1] = chn_syncdestroy(rdch);
2436 }
2437
2438 /*
2439 * Verify that mode matches character device properites.
2440 * - Bail if PCM_ENABLE_OUTPUT && wrch == NULL.
2441 * - Bail if PCM_ENABLE_INPUT && rdch == NULL.
2442 */
2443 if (((wrch == NULL) && (group->mode & PCM_ENABLE_OUTPUT)) ||
2444 ((rdch == NULL) && (group->mode & PCM_ENABLE_INPUT))) {
2445 ret = EINVAL;
2446 goto out;
2447 }
2448
2449 /*
2450 * An id of zero indicates the user wants to create a new
2451 * syncgroup.
2452 */
2453 if (group->id == 0) {
2454 sg = (struct pcmchan_syncgroup *)malloc(sizeof(*sg), M_DEVBUF, M_NOWAIT);
2455 if (sg != NULL) {
2456 SLIST_INIT(&sg->members);
2457 sg->id = alloc_unr(pcmsg_unrhdr);
2458
2459 group->id = sg->id;
2460 SLIST_INSERT_HEAD(&snd_pcm_syncgroups, sg, link);
2461 } else
2462 ret = ENOMEM;
2463 } else {
2464 SLIST_FOREACH(sg, &snd_pcm_syncgroups, link) {
2465 if (sg->id == group->id)
2466 break;
2467 }
2468 if (sg == NULL)
2469 ret = EINVAL;
2470 }
2471
2472 /* Couldn't create or find a syncgroup. Fail. */
2473 if (sg == NULL)
2474 goto out;
2475
2476 /*
2477 * Allocate a syncmember, assign it and a channel together, and
2478 * insert into syncgroup.
2479 */
2480 if (group->mode & PCM_ENABLE_INPUT) {
2481 smrd = (struct pcmchan_syncmember *)malloc(sizeof(*smrd), M_DEVBUF, M_NOWAIT);
2482 if (smrd == NULL) {
2483 ret = ENOMEM;
2484 goto out;
2485 }
2486
2487 SLIST_INSERT_HEAD(&sg->members, smrd, link);
2488 smrd->parent = sg;
2489 smrd->ch = rdch;
2490
2491 chn_abort(rdch);
2492 rdch->flags |= CHN_F_NOTRIGGER;
2493 rdch->sm = smrd;
2494 }
2495
2496 if (group->mode & PCM_ENABLE_OUTPUT) {
2497 smwr = (struct pcmchan_syncmember *)malloc(sizeof(*smwr), M_DEVBUF, M_NOWAIT);
2498 if (smwr == NULL) {
2499 ret = ENOMEM;
2500 goto out;
2501 }
2502
2503 SLIST_INSERT_HEAD(&sg->members, smwr, link);
2504 smwr->parent = sg;
2505 smwr->ch = wrch;
2506
2507 chn_abort(wrch);
2508 wrch->flags |= CHN_F_NOTRIGGER;
2509 wrch->sm = smwr;
2510 }
2511
2512
2513out:
2514 if (ret != 0) {
2515 if (smrd != NULL)
2516 free(smrd, M_DEVBUF);
2517 if ((sg != NULL) && SLIST_EMPTY(&sg->members)) {
2518 sg_ids[2] = sg->id;
2519 SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link);
2520 free(sg, M_DEVBUF);
2521 }
2522
2523 if (wrch)
2524 wrch->sm = NULL;
2525 if (rdch)
2526 rdch->sm = NULL;
2527 }
2528
2529 if (wrch)
2530 CHN_UNLOCK(wrch);
2531 if (rdch)
2532 CHN_UNLOCK(rdch);
2533
2534 PCM_SG_UNLOCK();
2535
2536 if (sg_ids[0])
2537 free_unr(pcmsg_unrhdr, sg_ids[0]);
2538 if (sg_ids[1])
2539 free_unr(pcmsg_unrhdr, sg_ids[1]);
2540 if (sg_ids[2])
2541 free_unr(pcmsg_unrhdr, sg_ids[2]);
2542
|
2262 return ret;
| 2543 return (ret);
|
2263}
2264
2265/**
2266 * @brief Launch a sync group into action
2267 *
2268 * Sync groups are established via SNDCTL_DSP_SYNCGROUP. This function
2269 * iterates over all members, triggering them along the way.
2270 *
2271 * @note Caller must not hold any channel locks.
2272 *
2273 * @param sg_id sync group identifier
2274 *
2275 * @retval 0 success
2276 * @retval non-zero error worthy of propagating upstream to user
2277 */
2278static int
2279dsp_oss_syncstart(int sg_id)
2280{
2281 struct pcmchan_syncmember *sm, *sm_tmp;
2282 struct pcmchan_syncgroup *sg;
2283 struct pcm_channel *c;
2284 int ret, needlocks;
2285
2286 /* Get the synclists lock */
2287 PCM_SG_LOCK();
2288
2289 do {
2290 ret = 0;
2291 needlocks = 0;
2292
2293 /* Search for syncgroup by ID */
2294 SLIST_FOREACH(sg, &snd_pcm_syncgroups, link) {
2295 if (sg->id == sg_id)
2296 break;
2297 }
2298
2299 /* Return EINVAL if not found */
2300 if (sg == NULL) {
2301 ret = EINVAL;
2302 break;
2303 }
2304
2305 /* Any removals resulting in an empty group should've handled this */
2306 KASSERT(!SLIST_EMPTY(&sg->members), ("found empty syncgroup"));
2307
2308 /*
2309 * Attempt to lock all member channels - if any are already
2310 * locked, unlock those acquired, sleep for a bit, and try
2311 * again.
2312 */
2313 SLIST_FOREACH(sm, &sg->members, link) {
2314 if (CHN_TRYLOCK(sm->ch) == 0) {
2315 int timo = hz * 5/1000;
2316 if (timo < 1)
2317 timo = 1;
2318
2319 /* Release all locked channels so far, retry */
2320 SLIST_FOREACH(sm_tmp, &sg->members, link) {
2321 /* sm is the member already locked */
2322 if (sm == sm_tmp)
2323 break;
2324 CHN_UNLOCK(sm_tmp->ch);
2325 }
2326
2327 /** @todo Is PRIBIO correct/ */
| 2544}
2545
2546/**
2547 * @brief Launch a sync group into action
2548 *
2549 * Sync groups are established via SNDCTL_DSP_SYNCGROUP. This function
2550 * iterates over all members, triggering them along the way.
2551 *
2552 * @note Caller must not hold any channel locks.
2553 *
2554 * @param sg_id sync group identifier
2555 *
2556 * @retval 0 success
2557 * @retval non-zero error worthy of propagating upstream to user
2558 */
2559static int
2560dsp_oss_syncstart(int sg_id)
2561{
2562 struct pcmchan_syncmember *sm, *sm_tmp;
2563 struct pcmchan_syncgroup *sg;
2564 struct pcm_channel *c;
2565 int ret, needlocks;
2566
2567 /* Get the synclists lock */
2568 PCM_SG_LOCK();
2569
2570 do {
2571 ret = 0;
2572 needlocks = 0;
2573
2574 /* Search for syncgroup by ID */
2575 SLIST_FOREACH(sg, &snd_pcm_syncgroups, link) {
2576 if (sg->id == sg_id)
2577 break;
2578 }
2579
2580 /* Return EINVAL if not found */
2581 if (sg == NULL) {
2582 ret = EINVAL;
2583 break;
2584 }
2585
2586 /* Any removals resulting in an empty group should've handled this */
2587 KASSERT(!SLIST_EMPTY(&sg->members), ("found empty syncgroup"));
2588
2589 /*
2590 * Attempt to lock all member channels - if any are already
2591 * locked, unlock those acquired, sleep for a bit, and try
2592 * again.
2593 */
2594 SLIST_FOREACH(sm, &sg->members, link) {
2595 if (CHN_TRYLOCK(sm->ch) == 0) {
2596 int timo = hz * 5/1000;
2597 if (timo < 1)
2598 timo = 1;
2599
2600 /* Release all locked channels so far, retry */
2601 SLIST_FOREACH(sm_tmp, &sg->members, link) {
2602 /* sm is the member already locked */
2603 if (sm == sm_tmp)
2604 break;
2605 CHN_UNLOCK(sm_tmp->ch);
2606 }
2607
2608 /** @todo Is PRIBIO correct/ */
|
2328 ret = msleep(sm, &snd_pcm_syncgroups_mtx, PRIBIO | PCATCH, "pcmsgrp", timo);
| 2609 ret = msleep(sm, &snd_pcm_syncgroups_mtx,
2610 PRIBIO | PCATCH, "pcmsg", timo);
|
2329 if (ret == EINTR || ret == ERESTART)
2330 break;
2331
2332 needlocks = 1;
2333 ret = 0; /* Assumes ret == EAGAIN... */
2334 }
2335 }
2336 } while (needlocks && ret == 0);
2337
2338 /* Proceed only if no errors encountered. */
2339 if (ret == 0) {
2340 /* Launch channels */
2341 while((sm = SLIST_FIRST(&sg->members)) != NULL) {
2342 SLIST_REMOVE_HEAD(&sg->members, link);
2343
2344 c = sm->ch;
2345 c->sm = NULL;
2346 chn_start(c, 1);
2347 c->flags &= ~CHN_F_NOTRIGGER;
2348 CHN_UNLOCK(c);
2349
2350 free(sm, M_DEVBUF);
2351 }
2352
2353 SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link);
2354 free(sg, M_DEVBUF);
2355 }
2356
2357 PCM_SG_UNLOCK();
2358
2359 /*
2360 * Free_unr() may sleep, so be sure to give up the syncgroup lock
2361 * first.
2362 */
2363 if (ret == 0)
2364 free_unr(pcmsg_unrhdr, sg_id);
2365
| 2611 if (ret == EINTR || ret == ERESTART)
2612 break;
2613
2614 needlocks = 1;
2615 ret = 0; /* Assumes ret == EAGAIN... */
2616 }
2617 }
2618 } while (needlocks && ret == 0);
2619
2620 /* Proceed only if no errors encountered. */
2621 if (ret == 0) {
2622 /* Launch channels */
2623 while((sm = SLIST_FIRST(&sg->members)) != NULL) {
2624 SLIST_REMOVE_HEAD(&sg->members, link);
2625
2626 c = sm->ch;
2627 c->sm = NULL;
2628 chn_start(c, 1);
2629 c->flags &= ~CHN_F_NOTRIGGER;
2630 CHN_UNLOCK(c);
2631
2632 free(sm, M_DEVBUF);
2633 }
2634
2635 SLIST_REMOVE(&snd_pcm_syncgroups, sg, pcmchan_syncgroup, link);
2636 free(sg, M_DEVBUF);
2637 }
2638
2639 PCM_SG_UNLOCK();
2640
2641 /*
2642 * Free_unr() may sleep, so be sure to give up the syncgroup lock
2643 * first.
2644 */
2645 if (ret == 0)
2646 free_unr(pcmsg_unrhdr, sg_id);
2647
|
2366 return ret;
| 2648 return (ret);
|
2367}
2368
2369/**
2370 * @brief Handler for SNDCTL_DSP_POLICY
2371 *
2372 * The SNDCTL_DSP_POLICY ioctl is a simpler interface to control fragment
2373 * size and count like with SNDCTL_DSP_SETFRAGMENT. Instead of the user
2374 * specifying those two parameters, s/he simply selects a number from 0..10
2375 * which corresponds to a buffer size. Smaller numbers request smaller
2376 * buffers with lower latencies (at greater overhead from more frequent
2377 * interrupts), while greater numbers behave in the opposite manner.
2378 *
2379 * The 4Front spec states that a value of 5 should be the default. However,
2380 * this implementation deviates slightly by using a linear scale without
2381 * consulting drivers. I.e., even though drivers may have different default
2382 * buffer sizes, a policy argument of 5 will have the same result across
2383 * all drivers.
2384 *
2385 * See http://manuals.opensound.com/developer/SNDCTL_DSP_POLICY.html for
2386 * more information.
2387 *
2388 * @todo When SNDCTL_DSP_COOKEDMODE is supported, it'll be necessary to
2389 * work with hardware drivers directly.
2390 *
2391 * @note PCM channel arguments must not be locked by caller.
2392 *
2393 * @param wrch Pointer to opened playback channel (optional; may be NULL)
2394 * @param rdch " recording channel (optional; may be NULL)
2395 * @param policy Integer from [0:10]
2396 *
2397 * @retval 0 constant (for now)
2398 */
2399static int
2400dsp_oss_policy(struct pcm_channel *wrch, struct pcm_channel *rdch, int policy)
2401{
2402 int ret;
2403
2404 if (policy < CHN_POLICY_MIN || policy > CHN_POLICY_MAX)
| 2649}
2650
2651/**
2652 * @brief Handler for SNDCTL_DSP_POLICY
2653 *
2654 * The SNDCTL_DSP_POLICY ioctl is a simpler interface to control fragment
2655 * size and count like with SNDCTL_DSP_SETFRAGMENT. Instead of the user
2656 * specifying those two parameters, s/he simply selects a number from 0..10
2657 * which corresponds to a buffer size. Smaller numbers request smaller
2658 * buffers with lower latencies (at greater overhead from more frequent
2659 * interrupts), while greater numbers behave in the opposite manner.
2660 *
2661 * The 4Front spec states that a value of 5 should be the default. However,
2662 * this implementation deviates slightly by using a linear scale without
2663 * consulting drivers. I.e., even though drivers may have different default
2664 * buffer sizes, a policy argument of 5 will have the same result across
2665 * all drivers.
2666 *
2667 * See http://manuals.opensound.com/developer/SNDCTL_DSP_POLICY.html for
2668 * more information.
2669 *
2670 * @todo When SNDCTL_DSP_COOKEDMODE is supported, it'll be necessary to
2671 * work with hardware drivers directly.
2672 *
2673 * @note PCM channel arguments must not be locked by caller.
2674 *
2675 * @param wrch Pointer to opened playback channel (optional; may be NULL)
2676 * @param rdch " recording channel (optional; may be NULL)
2677 * @param policy Integer from [0:10]
2678 *
2679 * @retval 0 constant (for now)
2680 */
2681static int
2682dsp_oss_policy(struct pcm_channel *wrch, struct pcm_channel *rdch, int policy)
2683{
2684 int ret;
2685
2686 if (policy < CHN_POLICY_MIN || policy > CHN_POLICY_MAX)
|
2405 return EIO;
| 2687 return (EIO);
|
2406
2407 /* Default: success */
2408 ret = 0;
2409
2410 if (rdch) {
2411 CHN_LOCK(rdch);
2412 ret = chn_setlatency(rdch, policy);
2413 CHN_UNLOCK(rdch);
2414 }
2415
2416 if (wrch && ret == 0) {
2417 CHN_LOCK(wrch);
2418 ret = chn_setlatency(wrch, policy);
2419 CHN_UNLOCK(wrch);
2420 }
2421
2422 if (ret)
2423 ret = EIO;
2424
| 2688
2689 /* Default: success */
2690 ret = 0;
2691
2692 if (rdch) {
2693 CHN_LOCK(rdch);
2694 ret = chn_setlatency(rdch, policy);
2695 CHN_UNLOCK(rdch);
2696 }
2697
2698 if (wrch && ret == 0) {
2699 CHN_LOCK(wrch);
2700 ret = chn_setlatency(wrch, policy);
2701 CHN_UNLOCK(wrch);
2702 }
2703
2704 if (ret)
2705 ret = EIO;
2706
|
2425 return ret;
| 2707 return (ret);
|
2426}
2427
2428#ifdef OSSV4_EXPERIMENT
2429/**
2430 * @brief Enable or disable "cooked" mode
2431 *
2432 * This is a handler for @c SNDCTL_DSP_COOKEDMODE. When in cooked mode, which
2433 * is the default, the sound system handles rate and format conversions
2434 * automatically (ex: user writing 11025Hz/8 bit/unsigned but card only
2435 * operates with 44100Hz/16bit/signed samples).
2436 *
2437 * Disabling cooked mode is intended for applications wanting to mmap()
2438 * a sound card's buffer space directly, bypassing the FreeBSD 2-stage
2439 * feeder architecture, presumably to gain as much control over audio
2440 * hardware as possible.
2441 *
2442 * See @c http://manuals.opensound.com/developer/SNDCTL_DSP_COOKEDMODE.html
2443 * for more details.
2444 *
2445 * @note Currently, this function is just a stub that always returns EINVAL.
2446 *
2447 * @todo Figure out how to and actually implement this.
2448 *
2449 * @param wrch playback channel (optional; may be NULL)
2450 * @param rdch recording channel (optional; may be NULL)
2451 * @param enabled 0 = raw mode, 1 = cooked mode
2452 *
2453 * @retval EINVAL Operation not yet supported.
2454 */
2455static int
2456dsp_oss_cookedmode(struct pcm_channel *wrch, struct pcm_channel *rdch, int enabled)
2457{
| 2708}
2709
2710#ifdef OSSV4_EXPERIMENT
2711/**
2712 * @brief Enable or disable "cooked" mode
2713 *
2714 * This is a handler for @c SNDCTL_DSP_COOKEDMODE. When in cooked mode, which
2715 * is the default, the sound system handles rate and format conversions
2716 * automatically (ex: user writing 11025Hz/8 bit/unsigned but card only
2717 * operates with 44100Hz/16bit/signed samples).
2718 *
2719 * Disabling cooked mode is intended for applications wanting to mmap()
2720 * a sound card's buffer space directly, bypassing the FreeBSD 2-stage
2721 * feeder architecture, presumably to gain as much control over audio
2722 * hardware as possible.
2723 *
2724 * See @c http://manuals.opensound.com/developer/SNDCTL_DSP_COOKEDMODE.html
2725 * for more details.
2726 *
2727 * @note Currently, this function is just a stub that always returns EINVAL.
2728 *
2729 * @todo Figure out how to and actually implement this.
2730 *
2731 * @param wrch playback channel (optional; may be NULL)
2732 * @param rdch recording channel (optional; may be NULL)
2733 * @param enabled 0 = raw mode, 1 = cooked mode
2734 *
2735 * @retval EINVAL Operation not yet supported.
2736 */
2737static int
2738dsp_oss_cookedmode(struct pcm_channel *wrch, struct pcm_channel *rdch, int enabled)
2739{
|
2458 return EINVAL;
| 2740 return (EINVAL);
|
2459}
2460
2461/**
2462 * @brief Retrieve channel interleaving order
2463 *
2464 * This is the handler for @c SNDCTL_DSP_GET_CHNORDER.
2465 *
2466 * See @c http://manuals.opensound.com/developer/SNDCTL_DSP_GET_CHNORDER.html
2467 * for more details.
2468 *
2469 * @note As the ioctl definition is still under construction, FreeBSD
2470 * does not currently support SNDCTL_DSP_GET_CHNORDER.
2471 *
2472 * @param wrch playback channel (optional; may be NULL)
2473 * @param rdch recording channel (optional; may be NULL)
2474 * @param map channel map (result will be stored there)
2475 *
2476 * @retval EINVAL Operation not yet supported.
2477 */
2478static int
2479dsp_oss_getchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map)
2480{
| 2741}
2742
2743/**
2744 * @brief Retrieve channel interleaving order
2745 *
2746 * This is the handler for @c SNDCTL_DSP_GET_CHNORDER.
2747 *
2748 * See @c http://manuals.opensound.com/developer/SNDCTL_DSP_GET_CHNORDER.html
2749 * for more details.
2750 *
2751 * @note As the ioctl definition is still under construction, FreeBSD
2752 * does not currently support SNDCTL_DSP_GET_CHNORDER.
2753 *
2754 * @param wrch playback channel (optional; may be NULL)
2755 * @param rdch recording channel (optional; may be NULL)
2756 * @param map channel map (result will be stored there)
2757 *
2758 * @retval EINVAL Operation not yet supported.
2759 */
2760static int
2761dsp_oss_getchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map)
2762{
|
2481 return EINVAL;
| 2763 return (EINVAL);
|
2482}
2483
2484/**
2485 * @brief Specify channel interleaving order
2486 *
2487 * This is the handler for @c SNDCTL_DSP_SET_CHNORDER.
2488 *
2489 * @note As the ioctl definition is still under construction, FreeBSD
2490 * does not currently support @c SNDCTL_DSP_SET_CHNORDER.
2491 *
2492 * @param wrch playback channel (optional; may be NULL)
2493 * @param rdch recording channel (optional; may be NULL)
2494 * @param map channel map
2495 *
2496 * @retval EINVAL Operation not yet supported.
2497 */
2498static int
2499dsp_oss_setchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map)
2500{
| 2764}
2765
2766/**
2767 * @brief Specify channel interleaving order
2768 *
2769 * This is the handler for @c SNDCTL_DSP_SET_CHNORDER.
2770 *
2771 * @note As the ioctl definition is still under construction, FreeBSD
2772 * does not currently support @c SNDCTL_DSP_SET_CHNORDER.
2773 *
2774 * @param wrch playback channel (optional; may be NULL)
2775 * @param rdch recording channel (optional; may be NULL)
2776 * @param map channel map
2777 *
2778 * @retval EINVAL Operation not yet supported.
2779 */
2780static int
2781dsp_oss_setchnorder(struct pcm_channel *wrch, struct pcm_channel *rdch, unsigned long long *map)
2782{
|
2501 return EINVAL;
| 2783 return (EINVAL);
|
2502}
2503
2504/**
2505 * @brief Retrieve an audio device's label
2506 *
2507 * This is a handler for the @c SNDCTL_GETLABEL ioctl.
2508 *
2509 * See @c http://manuals.opensound.com/developer/SNDCTL_GETLABEL.html
2510 * for more details.
2511 *
2512 * From Hannu@4Front: "For example ossxmix (just like some HW mixer
2513 * consoles) can show variable "labels" for certain controls. By default
2514 * the application name (say quake) is shown as the label but
2515 * applications may change the labels themselves."
2516 *
2517 * @note As the ioctl definition is still under construction, FreeBSD
2518 * does not currently support @c SNDCTL_GETLABEL.
2519 *
2520 * @param wrch playback channel (optional; may be NULL)
2521 * @param rdch recording channel (optional; may be NULL)
2522 * @param label label gets copied here
2523 *
2524 * @retval EINVAL Operation not yet supported.
2525 */
2526static int
2527dsp_oss_getlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label)
2528{
| 2784}
2785
2786/**
2787 * @brief Retrieve an audio device's label
2788 *
2789 * This is a handler for the @c SNDCTL_GETLABEL ioctl.
2790 *
2791 * See @c http://manuals.opensound.com/developer/SNDCTL_GETLABEL.html
2792 * for more details.
2793 *
2794 * From Hannu@4Front: "For example ossxmix (just like some HW mixer
2795 * consoles) can show variable "labels" for certain controls. By default
2796 * the application name (say quake) is shown as the label but
2797 * applications may change the labels themselves."
2798 *
2799 * @note As the ioctl definition is still under construction, FreeBSD
2800 * does not currently support @c SNDCTL_GETLABEL.
2801 *
2802 * @param wrch playback channel (optional; may be NULL)
2803 * @param rdch recording channel (optional; may be NULL)
2804 * @param label label gets copied here
2805 *
2806 * @retval EINVAL Operation not yet supported.
2807 */
2808static int
2809dsp_oss_getlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label)
2810{
|
2529 return EINVAL;
| 2811 return (EINVAL);
|
2530}
2531
2532/**
2533 * @brief Specify an audio device's label
2534 *
2535 * This is a handler for the @c SNDCTL_SETLABEL ioctl. Please see the
2536 * comments for @c dsp_oss_getlabel immediately above.
2537 *
2538 * See @c http://manuals.opensound.com/developer/SNDCTL_GETLABEL.html
2539 * for more details.
2540 *
2541 * @note As the ioctl definition is still under construction, FreeBSD
2542 * does not currently support SNDCTL_SETLABEL.
2543 *
2544 * @param wrch playback channel (optional; may be NULL)
2545 * @param rdch recording channel (optional; may be NULL)
2546 * @param label label gets copied from here
2547 *
2548 * @retval EINVAL Operation not yet supported.
2549 */
2550static int
2551dsp_oss_setlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label)
2552{
| 2812}
2813
2814/**
2815 * @brief Specify an audio device's label
2816 *
2817 * This is a handler for the @c SNDCTL_SETLABEL ioctl. Please see the
2818 * comments for @c dsp_oss_getlabel immediately above.
2819 *
2820 * See @c http://manuals.opensound.com/developer/SNDCTL_GETLABEL.html
2821 * for more details.
2822 *
2823 * @note As the ioctl definition is still under construction, FreeBSD
2824 * does not currently support SNDCTL_SETLABEL.
2825 *
2826 * @param wrch playback channel (optional; may be NULL)
2827 * @param rdch recording channel (optional; may be NULL)
2828 * @param label label gets copied from here
2829 *
2830 * @retval EINVAL Operation not yet supported.
2831 */
2832static int
2833dsp_oss_setlabel(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_label_t *label)
2834{
|
2553 return EINVAL;
| 2835 return (EINVAL);
|
2554}
2555
2556/**
2557 * @brief Retrieve name of currently played song
2558 *
2559 * This is a handler for the @c SNDCTL_GETSONG ioctl. Audio players could
2560 * tell the system the name of the currently playing song, which would be
2561 * visible in @c /dev/sndstat.
2562 *
2563 * See @c http://manuals.opensound.com/developer/SNDCTL_GETSONG.html
2564 * for more details.
2565 *
2566 * @note As the ioctl definition is still under construction, FreeBSD
2567 * does not currently support SNDCTL_GETSONG.
2568 *
2569 * @param wrch playback channel (optional; may be NULL)
2570 * @param rdch recording channel (optional; may be NULL)
2571 * @param song song name gets copied here
2572 *
2573 * @retval EINVAL Operation not yet supported.
2574 */
2575static int
2576dsp_oss_getsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song)
2577{
| 2836}
2837
2838/**
2839 * @brief Retrieve name of currently played song
2840 *
2841 * This is a handler for the @c SNDCTL_GETSONG ioctl. Audio players could
2842 * tell the system the name of the currently playing song, which would be
2843 * visible in @c /dev/sndstat.
2844 *
2845 * See @c http://manuals.opensound.com/developer/SNDCTL_GETSONG.html
2846 * for more details.
2847 *
2848 * @note As the ioctl definition is still under construction, FreeBSD
2849 * does not currently support SNDCTL_GETSONG.
2850 *
2851 * @param wrch playback channel (optional; may be NULL)
2852 * @param rdch recording channel (optional; may be NULL)
2853 * @param song song name gets copied here
2854 *
2855 * @retval EINVAL Operation not yet supported.
2856 */
2857static int
2858dsp_oss_getsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song)
2859{
|
2578 return EINVAL;
| 2860 return (EINVAL);
|
2579}
2580
2581/**
2582 * @brief Retrieve name of currently played song
2583 *
2584 * This is a handler for the @c SNDCTL_SETSONG ioctl. Audio players could
2585 * tell the system the name of the currently playing song, which would be
2586 * visible in @c /dev/sndstat.
2587 *
2588 * See @c http://manuals.opensound.com/developer/SNDCTL_SETSONG.html
2589 * for more details.
2590 *
2591 * @note As the ioctl definition is still under construction, FreeBSD
2592 * does not currently support SNDCTL_SETSONG.
2593 *
2594 * @param wrch playback channel (optional; may be NULL)
2595 * @param rdch recording channel (optional; may be NULL)
2596 * @param song song name gets copied from here
2597 *
2598 * @retval EINVAL Operation not yet supported.
2599 */
2600static int
2601dsp_oss_setsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song)
2602{
| 2861}
2862
2863/**
2864 * @brief Retrieve name of currently played song
2865 *
2866 * This is a handler for the @c SNDCTL_SETSONG ioctl. Audio players could
2867 * tell the system the name of the currently playing song, which would be
2868 * visible in @c /dev/sndstat.
2869 *
2870 * See @c http://manuals.opensound.com/developer/SNDCTL_SETSONG.html
2871 * for more details.
2872 *
2873 * @note As the ioctl definition is still under construction, FreeBSD
2874 * does not currently support SNDCTL_SETSONG.
2875 *
2876 * @param wrch playback channel (optional; may be NULL)
2877 * @param rdch recording channel (optional; may be NULL)
2878 * @param song song name gets copied from here
2879 *
2880 * @retval EINVAL Operation not yet supported.
2881 */
2882static int
2883dsp_oss_setsong(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *song)
2884{
|
2603 return EINVAL;
| 2885 return (EINVAL);
|
2604}
2605
2606/**
2607 * @brief Rename a device
2608 *
2609 * This is a handler for the @c SNDCTL_SETNAME ioctl.
2610 *
2611 * See @c http://manuals.opensound.com/developer/SNDCTL_SETNAME.html for
2612 * more details.
2613 *
2614 * From Hannu@4Front: "This call is used to change the device name
2615 * reported in /dev/sndstat and ossinfo. So instead of using some generic
2616 * 'OSS loopback audio (MIDI) driver' the device may be given a meaningfull
2617 * name depending on the current context (for example 'OSS virtual wave table
2618 * synth' or 'VoIP link to London')."
2619 *
2620 * @note As the ioctl definition is still under construction, FreeBSD
2621 * does not currently support SNDCTL_SETNAME.
2622 *
2623 * @param wrch playback channel (optional; may be NULL)
2624 * @param rdch recording channel (optional; may be NULL)
2625 * @param name new device name gets copied from here
2626 *
2627 * @retval EINVAL Operation not yet supported.
2628 */
2629static int
2630dsp_oss_setname(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *name)
2631{
| 2886}
2887
2888/**
2889 * @brief Rename a device
2890 *
2891 * This is a handler for the @c SNDCTL_SETNAME ioctl.
2892 *
2893 * See @c http://manuals.opensound.com/developer/SNDCTL_SETNAME.html for
2894 * more details.
2895 *
2896 * From Hannu@4Front: "This call is used to change the device name
2897 * reported in /dev/sndstat and ossinfo. So instead of using some generic
2898 * 'OSS loopback audio (MIDI) driver' the device may be given a meaningfull
2899 * name depending on the current context (for example 'OSS virtual wave table
2900 * synth' or 'VoIP link to London')."
2901 *
2902 * @note As the ioctl definition is still under construction, FreeBSD
2903 * does not currently support SNDCTL_SETNAME.
2904 *
2905 * @param wrch playback channel (optional; may be NULL)
2906 * @param rdch recording channel (optional; may be NULL)
2907 * @param name new device name gets copied from here
2908 *
2909 * @retval EINVAL Operation not yet supported.
2910 */
2911static int
2912dsp_oss_setname(struct pcm_channel *wrch, struct pcm_channel *rdch, oss_longname_t *name)
2913{
|
2632 return EINVAL;
| 2914 return (EINVAL);
|
2633}
2634#endif /* !OSSV4_EXPERIMENT */
| 2915}
2916#endif /* !OSSV4_EXPERIMENT */
|