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1da177e4 LT |
1 | /* |
2 | * Routines for Gravis UltraSound soundcards - Synthesizer | |
3 | * Copyright (c) by Jaroslav Kysela <perex@suse.cz> | |
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/init.h> | |
24 | #include <linux/time.h> | |
25 | #include <sound/core.h> | |
26 | #include <sound/gus.h> | |
27 | #include <sound/seq_device.h> | |
28 | ||
29 | MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); | |
30 | MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards - Synthesizer"); | |
31 | MODULE_LICENSE("GPL"); | |
32 | ||
33 | /* | |
34 | * | |
35 | */ | |
36 | ||
5e2da206 | 37 | static void snd_gus_synth_free_voices(struct snd_gus_card * gus, int client, int port) |
1da177e4 LT |
38 | { |
39 | int idx; | |
5e2da206 | 40 | struct snd_gus_voice * voice; |
1da177e4 LT |
41 | |
42 | for (idx = 0; idx < 32; idx++) { | |
43 | voice = &gus->gf1.voices[idx]; | |
44 | if (voice->use && voice->client == client && voice->port == port) | |
45 | snd_gf1_free_voice(gus, voice); | |
46 | } | |
47 | } | |
48 | ||
5e2da206 | 49 | static int snd_gus_synth_use(void *private_data, struct snd_seq_port_subscribe *info) |
1da177e4 | 50 | { |
5e2da206 TI |
51 | struct snd_gus_port * port = private_data; |
52 | struct snd_gus_card * gus = port->gus; | |
53 | struct snd_gus_voice * voice; | |
1da177e4 LT |
54 | unsigned int idx; |
55 | ||
56 | if (info->voices > 32) | |
57 | return -EINVAL; | |
58 | down(&gus->register_mutex); | |
59 | if (!snd_gus_use_inc(gus)) { | |
60 | up(&gus->register_mutex); | |
61 | return -EFAULT; | |
62 | } | |
63 | for (idx = 0; idx < info->voices; idx++) { | |
64 | voice = snd_gf1_alloc_voice(gus, SNDRV_GF1_VOICE_TYPE_SYNTH, info->sender.client, info->sender.port); | |
65 | if (voice == NULL) { | |
66 | snd_gus_synth_free_voices(gus, info->sender.client, info->sender.port); | |
67 | snd_gus_use_dec(gus); | |
68 | up(&gus->register_mutex); | |
69 | return -EBUSY; | |
70 | } | |
71 | voice->index = idx; | |
72 | } | |
73 | up(&gus->register_mutex); | |
74 | return 0; | |
75 | } | |
76 | ||
5e2da206 | 77 | static int snd_gus_synth_unuse(void *private_data, struct snd_seq_port_subscribe *info) |
1da177e4 | 78 | { |
5e2da206 TI |
79 | struct snd_gus_port * port = private_data; |
80 | struct snd_gus_card * gus = port->gus; | |
1da177e4 LT |
81 | |
82 | down(&gus->register_mutex); | |
83 | snd_gus_synth_free_voices(gus, info->sender.client, info->sender.port); | |
84 | snd_gus_use_dec(gus); | |
85 | up(&gus->register_mutex); | |
86 | return 0; | |
87 | } | |
88 | ||
89 | /* | |
90 | * | |
91 | */ | |
92 | ||
5e2da206 | 93 | static void snd_gus_synth_free_private_instruments(struct snd_gus_port *p, int client) |
1da177e4 | 94 | { |
5e2da206 | 95 | struct snd_seq_instr_header ifree; |
1da177e4 LT |
96 | |
97 | memset(&ifree, 0, sizeof(ifree)); | |
98 | ifree.cmd = SNDRV_SEQ_INSTR_FREE_CMD_PRIVATE; | |
99 | snd_seq_instr_list_free_cond(p->gus->gf1.ilist, &ifree, client, 0); | |
100 | } | |
101 | ||
5e2da206 | 102 | static int snd_gus_synth_event_input(struct snd_seq_event *ev, int direct, |
209ac85d | 103 | void *private_data, int atomic, int hop) |
1da177e4 | 104 | { |
5e2da206 | 105 | struct snd_gus_port * p = private_data; |
1da177e4 LT |
106 | |
107 | snd_assert(p != NULL, return -EINVAL); | |
108 | if (ev->type >= SNDRV_SEQ_EVENT_SAMPLE && | |
109 | ev->type <= SNDRV_SEQ_EVENT_SAMPLE_PRIVATE1) { | |
110 | snd_gus_sample_event(ev, p); | |
111 | return 0; | |
112 | } | |
113 | if (ev->source.client == SNDRV_SEQ_CLIENT_SYSTEM && | |
114 | ev->source.port == SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE) { | |
115 | if (ev->type == SNDRV_SEQ_EVENT_CLIENT_EXIT) { | |
116 | snd_gus_synth_free_private_instruments(p, ev->data.addr.client); | |
117 | return 0; | |
118 | } | |
119 | } | |
120 | if (direct) { | |
121 | if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN) { | |
122 | snd_seq_instr_event(&p->gus->gf1.iwffff_ops.kops, | |
123 | p->gus->gf1.ilist, | |
124 | ev, | |
125 | p->gus->gf1.seq_client, | |
126 | atomic, hop); | |
127 | return 0; | |
128 | } | |
129 | } | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static void snd_gus_synth_instr_notify(void *private_data, | |
5e2da206 | 134 | struct snd_seq_kinstr *instr, |
1da177e4 LT |
135 | int what) |
136 | { | |
137 | unsigned int idx; | |
5e2da206 TI |
138 | struct snd_gus_card *gus = private_data; |
139 | struct snd_gus_voice *pvoice; | |
1da177e4 LT |
140 | unsigned long flags; |
141 | ||
142 | spin_lock_irqsave(&gus->event_lock, flags); | |
143 | for (idx = 0; idx < 32; idx++) { | |
144 | pvoice = &gus->gf1.voices[idx]; | |
145 | if (pvoice->use && !memcmp(&pvoice->instr, &instr->instr, sizeof(pvoice->instr))) { | |
146 | if (pvoice->sample_ops && pvoice->sample_ops->sample_stop) { | |
147 | pvoice->sample_ops->sample_stop(gus, pvoice, SAMPLE_STOP_IMMEDIATELY); | |
148 | } else { | |
149 | snd_gf1_stop_voice(gus, pvoice->number); | |
150 | pvoice->flags &= ~SNDRV_GF1_VFLG_RUNNING; | |
151 | } | |
152 | } | |
153 | } | |
154 | spin_unlock_irqrestore(&gus->event_lock, flags); | |
155 | } | |
156 | ||
157 | /* | |
158 | * | |
159 | */ | |
160 | ||
161 | static void snd_gus_synth_free_port(void *private_data) | |
162 | { | |
5e2da206 | 163 | struct snd_gus_port * p = private_data; |
1da177e4 LT |
164 | |
165 | if (p) | |
166 | snd_midi_channel_free_set(p->chset); | |
167 | } | |
168 | ||
5e2da206 | 169 | static int snd_gus_synth_create_port(struct snd_gus_card * gus, int idx) |
1da177e4 | 170 | { |
5e2da206 TI |
171 | struct snd_gus_port * p; |
172 | struct snd_seq_port_callback callbacks; | |
1da177e4 LT |
173 | char name[32]; |
174 | int result; | |
175 | ||
176 | p = &gus->gf1.seq_ports[idx]; | |
177 | p->chset = snd_midi_channel_alloc_set(16); | |
178 | if (p->chset == NULL) | |
179 | return -ENOMEM; | |
180 | p->chset->private_data = p; | |
181 | p->gus = gus; | |
182 | p->client = gus->gf1.seq_client; | |
183 | ||
184 | memset(&callbacks, 0, sizeof(callbacks)); | |
185 | callbacks.owner = THIS_MODULE; | |
186 | callbacks.use = snd_gus_synth_use; | |
187 | callbacks.unuse = snd_gus_synth_unuse; | |
188 | callbacks.event_input = snd_gus_synth_event_input; | |
189 | callbacks.private_free = snd_gus_synth_free_port; | |
190 | callbacks.private_data = p; | |
191 | ||
192 | sprintf(name, "%s port %i", gus->interwave ? "AMD InterWave" : "GF1", idx); | |
193 | p->chset->port = snd_seq_event_port_attach(gus->gf1.seq_client, | |
194 | &callbacks, | |
195 | SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE, | |
196 | SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE | | |
197 | SNDRV_SEQ_PORT_TYPE_SYNTH, | |
198 | 16, 0, | |
199 | name); | |
200 | if (p->chset->port < 0) { | |
201 | result = p->chset->port; | |
202 | snd_gus_synth_free_port(p); | |
203 | return result; | |
204 | } | |
205 | p->port = p->chset->port; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | /* | |
210 | * | |
211 | */ | |
212 | ||
5e2da206 | 213 | static int snd_gus_synth_new_device(struct snd_seq_device *dev) |
1da177e4 | 214 | { |
5e2da206 | 215 | struct snd_gus_card *gus; |
1da177e4 | 216 | int client, i; |
5e2da206 TI |
217 | struct snd_seq_port_subscribe sub; |
218 | struct snd_iwffff_ops *iwops; | |
219 | struct snd_gf1_ops *gf1ops; | |
220 | struct snd_simple_ops *simpleops; | |
221 | ||
222 | gus = *(struct snd_gus_card **)SNDRV_SEQ_DEVICE_ARGPTR(dev); | |
1da177e4 LT |
223 | if (gus == NULL) |
224 | return -EINVAL; | |
225 | ||
226 | init_MUTEX(&gus->register_mutex); | |
227 | gus->gf1.seq_client = -1; | |
228 | ||
1da177e4 | 229 | /* allocate new client */ |
1da177e4 | 230 | client = gus->gf1.seq_client = |
7b6d9245 CL |
231 | snd_seq_create_kernel_client(gus->card, 1, gus->interwave ? |
232 | "AMD InterWave" : "GF1"); | |
233 | if (client < 0) | |
1da177e4 | 234 | return client; |
1da177e4 LT |
235 | |
236 | for (i = 0; i < 4; i++) | |
237 | snd_gus_synth_create_port(gus, i); | |
238 | ||
239 | gus->gf1.ilist = snd_seq_instr_list_new(); | |
240 | if (gus->gf1.ilist == NULL) { | |
241 | snd_seq_delete_kernel_client(client); | |
242 | gus->gf1.seq_client = -1; | |
243 | return -ENOMEM; | |
244 | } | |
245 | gus->gf1.ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT; | |
246 | ||
247 | simpleops = &gus->gf1.simple_ops; | |
248 | snd_seq_simple_init(simpleops, gus, NULL); | |
249 | simpleops->put_sample = snd_gus_simple_put_sample; | |
250 | simpleops->get_sample = snd_gus_simple_get_sample; | |
251 | simpleops->remove_sample = snd_gus_simple_remove_sample; | |
252 | simpleops->notify = snd_gus_synth_instr_notify; | |
253 | ||
254 | gf1ops = &gus->gf1.gf1_ops; | |
255 | snd_seq_gf1_init(gf1ops, gus, &simpleops->kops); | |
256 | gf1ops->put_sample = snd_gus_gf1_put_sample; | |
257 | gf1ops->get_sample = snd_gus_gf1_get_sample; | |
258 | gf1ops->remove_sample = snd_gus_gf1_remove_sample; | |
259 | gf1ops->notify = snd_gus_synth_instr_notify; | |
260 | ||
261 | iwops = &gus->gf1.iwffff_ops; | |
262 | snd_seq_iwffff_init(iwops, gus, &gf1ops->kops); | |
263 | iwops->put_sample = snd_gus_iwffff_put_sample; | |
264 | iwops->get_sample = snd_gus_iwffff_get_sample; | |
265 | iwops->remove_sample = snd_gus_iwffff_remove_sample; | |
266 | iwops->notify = snd_gus_synth_instr_notify; | |
267 | ||
268 | memset(&sub, 0, sizeof(sub)); | |
269 | sub.sender.client = SNDRV_SEQ_CLIENT_SYSTEM; | |
270 | sub.sender.port = SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE; | |
271 | sub.dest.client = client; | |
272 | sub.dest.port = 0; | |
273 | snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT, &sub); | |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
5e2da206 | 278 | static int snd_gus_synth_delete_device(struct snd_seq_device *dev) |
1da177e4 | 279 | { |
5e2da206 | 280 | struct snd_gus_card *gus; |
1da177e4 | 281 | |
5e2da206 | 282 | gus = *(struct snd_gus_card **)SNDRV_SEQ_DEVICE_ARGPTR(dev); |
1da177e4 LT |
283 | if (gus == NULL) |
284 | return -EINVAL; | |
285 | ||
286 | if (gus->gf1.seq_client >= 0) { | |
287 | snd_seq_delete_kernel_client(gus->gf1.seq_client); | |
288 | gus->gf1.seq_client = -1; | |
289 | } | |
290 | if (gus->gf1.ilist) | |
291 | snd_seq_instr_list_free(&gus->gf1.ilist); | |
292 | return 0; | |
293 | } | |
294 | ||
295 | static int __init alsa_gus_synth_init(void) | |
296 | { | |
5e2da206 | 297 | static struct snd_seq_dev_ops ops = { |
1da177e4 LT |
298 | snd_gus_synth_new_device, |
299 | snd_gus_synth_delete_device | |
300 | }; | |
301 | ||
302 | return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_GUS, &ops, | |
5e2da206 | 303 | sizeof(struct snd_gus_card *)); |
1da177e4 LT |
304 | } |
305 | ||
306 | static void __exit alsa_gus_synth_exit(void) | |
307 | { | |
308 | snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_GUS); | |
309 | } | |
310 | ||
311 | module_init(alsa_gus_synth_init) | |
312 | module_exit(alsa_gus_synth_exit) |