1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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 *
| 1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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 *
|
27 */
28
29#include <dev/pcm/sound.h>
30
31static u_int16_t snd_mixerdefaults[SOUND_MIXER_NRDEVICES] = {
32 [SOUND_MIXER_VOLUME] = 75,
33 [SOUND_MIXER_BASS] = 50,
34 [SOUND_MIXER_TREBLE] = 50,
35 [SOUND_MIXER_PCM] = 75,
36 [SOUND_MIXER_SPEAKER] = 75,
37 [SOUND_MIXER_LINE] = 75,
38 [SOUND_MIXER_MIC] = 0,
39 [SOUND_MIXER_CD] = 75,
40 [SOUND_MIXER_LINE1] = 75,
41 [SOUND_MIXER_VIDEO] = 75,
42 [SOUND_MIXER_RECLEV] = 0,
43};
44
45int
46mixer_init(snddev_info *d, snd_mixer *m, void *devinfo)
47{
48 if (d == NULL) return -1;
49 d->mixer = *m;
50 d->mixer.devinfo = devinfo;
51 bzero(&d->mixer.level, sizeof d->mixer.level);
52 if (d->mixer.init != NULL && d->mixer.init(&d->mixer) == 0) {
53 int i;
54 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
55 u_int16_t v = snd_mixerdefaults[i];
56 mixer_set(d, i, v | (v << 8));
57 }
58 mixer_setrecsrc(d, SOUND_MASK_MIC);
59 return 0;
60 } else return -1;
61}
62
63int
64mixer_set(snddev_info *d, unsigned dev, unsigned lev)
65{
66 if (d == NULL || d->mixer.set == NULL) return -1;
67 if ((dev < SOUND_MIXER_NRDEVICES) && (d->mixer.devs & (1 << dev))) {
68 unsigned l = min((lev & 0x00ff), 100);
69 unsigned r = min(((lev & 0xff00) >> 8), 100);
70 int v = d->mixer.set(&d->mixer, dev, l, r);
71 if (v >= 0) d->mixer.level[dev] = v;
72 return 0;
73 } else return -1;
74}
75
76int
77mixer_get(snddev_info *d, int dev)
78{
79 if (d == NULL) return -1;
80 if (dev < SOUND_MIXER_NRDEVICES && (d->mixer.devs & (1 << dev)))
81 return d->mixer.level[dev];
82 else return -1;
83}
84
85int
86mixer_setrecsrc(snddev_info *d, u_int32_t src)
87{
88 if (d == NULL || d->mixer.setrecsrc == NULL) return -1;
89 src &= d->mixer.recdevs;
90 if (src == 0) src = SOUND_MASK_MIC;
91 d->mixer.recsrc = d->mixer.setrecsrc(&d->mixer, src);
92 return 0;
93}
94
95int
96mixer_getrecsrc(snddev_info *d)
97{
98 if (d == NULL) return -1;
99 return d->mixer.recsrc;
100}
101
102int
103mixer_ioctl(snddev_info *d, u_long cmd, caddr_t arg)
104{
105 int ret, *arg_i = (int *)arg;
106
107 if ((cmd & MIXER_WRITE(0)) == MIXER_WRITE(0)) {
108 int j = cmd & 0xff;
109
110 if (j == SOUND_MIXER_RECSRC) ret = mixer_setrecsrc(d, *arg_i);
111 else ret = mixer_set(d, j, *arg_i);
112 return (ret == 0)? 0 : ENXIO;
113 }
114
115 if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
116 int v = -1, j = cmd & 0xff;
117
118 switch (j) {
119 case SOUND_MIXER_DEVMASK:
120 case SOUND_MIXER_CAPS:
121 case SOUND_MIXER_STEREODEVS:
122 v = d->mixer.devs;
123 break;
124
125 case SOUND_MIXER_RECMASK:
126 v = d->mixer.recdevs;
127 break;
128
129 case SOUND_MIXER_RECSRC:
130 v = mixer_getrecsrc(d);
131 break;
132
133 default:
134 v = mixer_get(d, j);
135 }
136 *arg_i = v;
137 return (v != -1)? 0 : ENXIO;
138 }
139 return ENXIO;
140}
141
142void
143mix_setdevs(snd_mixer *m, u_int32_t v)
144{
145 m->devs = v;
146}
147
148void
149mix_setrecdevs(snd_mixer *m, u_int32_t v)
150{
151 m->recdevs = v;
152}
153
154u_int32_t
155mix_getdevs(snd_mixer *m)
156{
157 return m->devs;
158}
159
160u_int32_t
161mix_getrecdevs(snd_mixer *m)
162{
163 return m->recdevs;
164}
165
166void *
167mix_getdevinfo(snd_mixer *m)
168{
169 return m->devinfo;
170}
171
172/*
173 * The various mixers use a variety of bitmasks etc. The Voxware
174 * driver had a very nice technique to describe a mixer and interface
175 * to it. A table defines, for each channel, which register, bits,
176 * offset, polarity to use. This procedure creates the new value
177 * using the table and the old value.
178 */
179
180void
181change_bits(mixer_tab *t, u_char *regval, int dev, int chn, int newval)
182{
183 u_char mask;
184 int shift;
185
186 DEB(printf("ch_bits dev %d ch %d val %d old 0x%02x "
187 "r %d p %d bit %d off %d\n",
188 dev, chn, newval, *regval,
189 (*t)[dev][chn].regno, (*t)[dev][chn].polarity,
190 (*t)[dev][chn].nbits, (*t)[dev][chn].bitoffs ) );
191
192 if ( (*t)[dev][chn].polarity == 1) /* reverse */
193 newval = 100 - newval ;
194
195 mask = (1 << (*t)[dev][chn].nbits) - 1;
196 newval = (int) ((newval * mask) + 50) / 100; /* Scale it */
197 shift = (*t)[dev][chn].bitoffs /*- (*t)[dev][LEFT_CHN].nbits + 1*/;
198
199 *regval &= ~(mask << shift); /* Filter out the previous value */
200 *regval |= (newval & mask) << shift; /* Set the new value */
201}
202
| 27 */
28
29#include <dev/pcm/sound.h>
30
31static u_int16_t snd_mixerdefaults[SOUND_MIXER_NRDEVICES] = {
32 [SOUND_MIXER_VOLUME] = 75,
33 [SOUND_MIXER_BASS] = 50,
34 [SOUND_MIXER_TREBLE] = 50,
35 [SOUND_MIXER_PCM] = 75,
36 [SOUND_MIXER_SPEAKER] = 75,
37 [SOUND_MIXER_LINE] = 75,
38 [SOUND_MIXER_MIC] = 0,
39 [SOUND_MIXER_CD] = 75,
40 [SOUND_MIXER_LINE1] = 75,
41 [SOUND_MIXER_VIDEO] = 75,
42 [SOUND_MIXER_RECLEV] = 0,
43};
44
45int
46mixer_init(snddev_info *d, snd_mixer *m, void *devinfo)
47{
48 if (d == NULL) return -1;
49 d->mixer = *m;
50 d->mixer.devinfo = devinfo;
51 bzero(&d->mixer.level, sizeof d->mixer.level);
52 if (d->mixer.init != NULL && d->mixer.init(&d->mixer) == 0) {
53 int i;
54 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
55 u_int16_t v = snd_mixerdefaults[i];
56 mixer_set(d, i, v | (v << 8));
57 }
58 mixer_setrecsrc(d, SOUND_MASK_MIC);
59 return 0;
60 } else return -1;
61}
62
63int
64mixer_set(snddev_info *d, unsigned dev, unsigned lev)
65{
66 if (d == NULL || d->mixer.set == NULL) return -1;
67 if ((dev < SOUND_MIXER_NRDEVICES) && (d->mixer.devs & (1 << dev))) {
68 unsigned l = min((lev & 0x00ff), 100);
69 unsigned r = min(((lev & 0xff00) >> 8), 100);
70 int v = d->mixer.set(&d->mixer, dev, l, r);
71 if (v >= 0) d->mixer.level[dev] = v;
72 return 0;
73 } else return -1;
74}
75
76int
77mixer_get(snddev_info *d, int dev)
78{
79 if (d == NULL) return -1;
80 if (dev < SOUND_MIXER_NRDEVICES && (d->mixer.devs & (1 << dev)))
81 return d->mixer.level[dev];
82 else return -1;
83}
84
85int
86mixer_setrecsrc(snddev_info *d, u_int32_t src)
87{
88 if (d == NULL || d->mixer.setrecsrc == NULL) return -1;
89 src &= d->mixer.recdevs;
90 if (src == 0) src = SOUND_MASK_MIC;
91 d->mixer.recsrc = d->mixer.setrecsrc(&d->mixer, src);
92 return 0;
93}
94
95int
96mixer_getrecsrc(snddev_info *d)
97{
98 if (d == NULL) return -1;
99 return d->mixer.recsrc;
100}
101
102int
103mixer_ioctl(snddev_info *d, u_long cmd, caddr_t arg)
104{
105 int ret, *arg_i = (int *)arg;
106
107 if ((cmd & MIXER_WRITE(0)) == MIXER_WRITE(0)) {
108 int j = cmd & 0xff;
109
110 if (j == SOUND_MIXER_RECSRC) ret = mixer_setrecsrc(d, *arg_i);
111 else ret = mixer_set(d, j, *arg_i);
112 return (ret == 0)? 0 : ENXIO;
113 }
114
115 if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
116 int v = -1, j = cmd & 0xff;
117
118 switch (j) {
119 case SOUND_MIXER_DEVMASK:
120 case SOUND_MIXER_CAPS:
121 case SOUND_MIXER_STEREODEVS:
122 v = d->mixer.devs;
123 break;
124
125 case SOUND_MIXER_RECMASK:
126 v = d->mixer.recdevs;
127 break;
128
129 case SOUND_MIXER_RECSRC:
130 v = mixer_getrecsrc(d);
131 break;
132
133 default:
134 v = mixer_get(d, j);
135 }
136 *arg_i = v;
137 return (v != -1)? 0 : ENXIO;
138 }
139 return ENXIO;
140}
141
142void
143mix_setdevs(snd_mixer *m, u_int32_t v)
144{
145 m->devs = v;
146}
147
148void
149mix_setrecdevs(snd_mixer *m, u_int32_t v)
150{
151 m->recdevs = v;
152}
153
154u_int32_t
155mix_getdevs(snd_mixer *m)
156{
157 return m->devs;
158}
159
160u_int32_t
161mix_getrecdevs(snd_mixer *m)
162{
163 return m->recdevs;
164}
165
166void *
167mix_getdevinfo(snd_mixer *m)
168{
169 return m->devinfo;
170}
171
172/*
173 * The various mixers use a variety of bitmasks etc. The Voxware
174 * driver had a very nice technique to describe a mixer and interface
175 * to it. A table defines, for each channel, which register, bits,
176 * offset, polarity to use. This procedure creates the new value
177 * using the table and the old value.
178 */
179
180void
181change_bits(mixer_tab *t, u_char *regval, int dev, int chn, int newval)
182{
183 u_char mask;
184 int shift;
185
186 DEB(printf("ch_bits dev %d ch %d val %d old 0x%02x "
187 "r %d p %d bit %d off %d\n",
188 dev, chn, newval, *regval,
189 (*t)[dev][chn].regno, (*t)[dev][chn].polarity,
190 (*t)[dev][chn].nbits, (*t)[dev][chn].bitoffs ) );
191
192 if ( (*t)[dev][chn].polarity == 1) /* reverse */
193 newval = 100 - newval ;
194
195 mask = (1 << (*t)[dev][chn].nbits) - 1;
196 newval = (int) ((newval * mask) + 50) / 100; /* Scale it */
197 shift = (*t)[dev][chn].bitoffs /*- (*t)[dev][LEFT_CHN].nbits + 1*/;
198
199 *regval &= ~(mask << shift); /* Filter out the previous value */
200 *regval |= (newval & mask) << shift; /* Set the new value */
201}
202
|