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1da177e4 LT |
1 | /* |
2 | * Routines for Gravis UltraSound soundcards - Sample support | |
c1017a4c | 3 | * Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
1da177e4 LT |
4 | * |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <sound/driver.h> | |
23 | #include <linux/time.h> | |
24 | #include <sound/core.h> | |
25 | #include <sound/gus.h> | |
26 | ||
27 | /* | |
28 | * | |
29 | */ | |
30 | ||
5e2da206 | 31 | static void select_instrument(struct snd_gus_card * gus, struct snd_gus_voice * v) |
1da177e4 | 32 | { |
5e2da206 | 33 | struct snd_seq_kinstr *instr; |
1da177e4 LT |
34 | |
35 | #if 0 | |
36 | printk("select instrument: cluster = %li, std = 0x%x, bank = %i, prg = %i\n", | |
37 | v->instr.cluster, | |
38 | v->instr.std, | |
39 | v->instr.bank, | |
40 | v->instr.prg); | |
41 | #endif | |
42 | instr = snd_seq_instr_find(gus->gf1.ilist, &v->instr, 0, 1); | |
43 | if (instr != NULL) { | |
44 | if (instr->ops) { | |
45 | if (!strcmp(instr->ops->instr_type, SNDRV_SEQ_INSTR_ID_SIMPLE)) | |
46 | snd_gf1_simple_init(v); | |
47 | } | |
48 | snd_seq_instr_free_use(gus->gf1.ilist, instr); | |
49 | } | |
50 | } | |
51 | ||
52 | /* | |
53 | * | |
54 | */ | |
55 | ||
5e2da206 TI |
56 | static void event_sample(struct snd_seq_event *ev, struct snd_gus_port *p, |
57 | struct snd_gus_voice *v) | |
1da177e4 LT |
58 | { |
59 | if (v->sample_ops && v->sample_ops->sample_stop) | |
60 | v->sample_ops->sample_stop(p->gus, v, SAMPLE_STOP_IMMEDIATELY); | |
61 | v->instr.std = ev->data.sample.param.sample.std; | |
62 | if (v->instr.std & 0xff000000) { /* private instrument */ | |
63 | v->instr.std &= 0x00ffffff; | |
64 | v->instr.std |= (unsigned int)ev->source.client << 24; | |
65 | } | |
66 | v->instr.bank = ev->data.sample.param.sample.bank; | |
67 | v->instr.prg = ev->data.sample.param.sample.prg; | |
68 | select_instrument(p->gus, v); | |
69 | } | |
70 | ||
5e2da206 TI |
71 | static void event_cluster(struct snd_seq_event *ev, struct snd_gus_port *p, |
72 | struct snd_gus_voice *v) | |
1da177e4 LT |
73 | { |
74 | if (v->sample_ops && v->sample_ops->sample_stop) | |
75 | v->sample_ops->sample_stop(p->gus, v, SAMPLE_STOP_IMMEDIATELY); | |
76 | v->instr.cluster = ev->data.sample.param.cluster.cluster; | |
77 | select_instrument(p->gus, v); | |
78 | } | |
79 | ||
5e2da206 TI |
80 | static void event_start(struct snd_seq_event *ev, struct snd_gus_port *p, |
81 | struct snd_gus_voice *v) | |
1da177e4 LT |
82 | { |
83 | if (v->sample_ops && v->sample_ops->sample_start) | |
84 | v->sample_ops->sample_start(p->gus, v, ev->data.sample.param.position); | |
85 | } | |
86 | ||
5e2da206 TI |
87 | static void event_stop(struct snd_seq_event *ev, struct snd_gus_port *p, |
88 | struct snd_gus_voice *v) | |
1da177e4 LT |
89 | { |
90 | if (v->sample_ops && v->sample_ops->sample_stop) | |
91 | v->sample_ops->sample_stop(p->gus, v, ev->data.sample.param.stop_mode); | |
92 | } | |
93 | ||
5e2da206 TI |
94 | static void event_freq(struct snd_seq_event *ev, struct snd_gus_port *p, |
95 | struct snd_gus_voice *v) | |
1da177e4 LT |
96 | { |
97 | if (v->sample_ops && v->sample_ops->sample_freq) | |
98 | v->sample_ops->sample_freq(p->gus, v, ev->data.sample.param.frequency); | |
99 | } | |
100 | ||
5e2da206 TI |
101 | static void event_volume(struct snd_seq_event *ev, struct snd_gus_port *p, |
102 | struct snd_gus_voice *v) | |
1da177e4 LT |
103 | { |
104 | if (v->sample_ops && v->sample_ops->sample_volume) | |
105 | v->sample_ops->sample_volume(p->gus, v, &ev->data.sample.param.volume); | |
106 | } | |
107 | ||
5e2da206 TI |
108 | static void event_loop(struct snd_seq_event *ev, struct snd_gus_port *p, |
109 | struct snd_gus_voice *v) | |
1da177e4 LT |
110 | { |
111 | if (v->sample_ops && v->sample_ops->sample_loop) | |
112 | v->sample_ops->sample_loop(p->gus, v, &ev->data.sample.param.loop); | |
113 | } | |
114 | ||
5e2da206 TI |
115 | static void event_position(struct snd_seq_event *ev, struct snd_gus_port *p, |
116 | struct snd_gus_voice *v) | |
1da177e4 LT |
117 | { |
118 | if (v->sample_ops && v->sample_ops->sample_pos) | |
119 | v->sample_ops->sample_pos(p->gus, v, ev->data.sample.param.position); | |
120 | } | |
121 | ||
5e2da206 TI |
122 | static void event_private1(struct snd_seq_event *ev, struct snd_gus_port *p, |
123 | struct snd_gus_voice *v) | |
1da177e4 LT |
124 | { |
125 | if (v->sample_ops && v->sample_ops->sample_private1) | |
126 | v->sample_ops->sample_private1(p->gus, v, (unsigned char *)&ev->data.sample.param.raw8); | |
127 | } | |
128 | ||
5e2da206 TI |
129 | typedef void (gus_sample_event_handler_t)(struct snd_seq_event *ev, |
130 | struct snd_gus_port *p, | |
131 | struct snd_gus_voice *v); | |
1da177e4 LT |
132 | static gus_sample_event_handler_t *gus_sample_event_handlers[9] = { |
133 | event_sample, | |
134 | event_cluster, | |
135 | event_start, | |
136 | event_stop, | |
137 | event_freq, | |
138 | event_volume, | |
139 | event_loop, | |
140 | event_position, | |
141 | event_private1 | |
142 | }; | |
143 | ||
5e2da206 | 144 | void snd_gus_sample_event(struct snd_seq_event *ev, struct snd_gus_port *p) |
1da177e4 LT |
145 | { |
146 | int idx, voice; | |
5e2da206 TI |
147 | struct snd_gus_card *gus = p->gus; |
148 | struct snd_gus_voice *v; | |
1da177e4 LT |
149 | unsigned long flags; |
150 | ||
151 | idx = ev->type - SNDRV_SEQ_EVENT_SAMPLE; | |
152 | if (idx < 0 || idx > 8) | |
153 | return; | |
154 | for (voice = 0; voice < 32; voice++) { | |
155 | v = &gus->gf1.voices[voice]; | |
156 | if (v->use && v->client == ev->source.client && | |
157 | v->port == ev->source.port && | |
158 | v->index == ev->data.sample.channel) { | |
159 | spin_lock_irqsave(&gus->event_lock, flags); | |
160 | gus_sample_event_handlers[idx](ev, p, v); | |
161 | spin_unlock_irqrestore(&gus->event_lock, flags); | |
162 | return; | |
163 | } | |
164 | } | |
165 | } |