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
37 static void snd_gus_synth_free_voices(snd_gus_card_t * gus, int client, int port)
38 {
39 int idx;
40 snd_gus_voice_t * voice;
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
49 static int snd_gus_synth_use(void *private_data, snd_seq_port_subscribe_t *info)
50 {
51 snd_gus_port_t * port = (snd_gus_port_t *)private_data;
52 snd_gus_card_t * gus = port->gus;
53 snd_gus_voice_t * voice;
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
77 static int snd_gus_synth_unuse(void *private_data, snd_seq_port_subscribe_t *info)
78 {
79 snd_gus_port_t * port = (snd_gus_port_t *)private_data;
80 snd_gus_card_t * gus = port->gus;
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
93 static void snd_gus_synth_free_private_instruments(snd_gus_port_t *p, int client)
94 {
95 snd_seq_instr_header_t ifree;
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
102 int snd_gus_synth_event_input(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop)
103 {
104 snd_gus_port_t * p = (snd_gus_port_t *) private_data;
105
106 snd_assert(p != NULL, return -EINVAL);
107 if (ev->type >= SNDRV_SEQ_EVENT_SAMPLE &&
108 ev->type <= SNDRV_SEQ_EVENT_SAMPLE_PRIVATE1) {
109 snd_gus_sample_event(ev, p);
110 return 0;
111 }
112 if (ev->source.client == SNDRV_SEQ_CLIENT_SYSTEM &&
113 ev->source.port == SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE) {
114 if (ev->type == SNDRV_SEQ_EVENT_CLIENT_EXIT) {
115 snd_gus_synth_free_private_instruments(p, ev->data.addr.client);
116 return 0;
117 }
118 }
119 if (direct) {
120 if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN) {
121 snd_seq_instr_event(&p->gus->gf1.iwffff_ops.kops,
122 p->gus->gf1.ilist,
123 ev,
124 p->gus->gf1.seq_client,
125 atomic, hop);
126 return 0;
127 }
128 }
129 return 0;
130 }
131
132 static void snd_gus_synth_instr_notify(void *private_data,
133 snd_seq_kinstr_t *instr,
134 int what)
135 {
136 unsigned int idx;
137 snd_gus_card_t *gus = private_data;
138 snd_gus_voice_t *pvoice;
139 unsigned long flags;
140
141 spin_lock_irqsave(&gus->event_lock, flags);
142 for (idx = 0; idx < 32; idx++) {
143 pvoice = &gus->gf1.voices[idx];
144 if (pvoice->use && !memcmp(&pvoice->instr, &instr->instr, sizeof(pvoice->instr))) {
145 if (pvoice->sample_ops && pvoice->sample_ops->sample_stop) {
146 pvoice->sample_ops->sample_stop(gus, pvoice, SAMPLE_STOP_IMMEDIATELY);
147 } else {
148 snd_gf1_stop_voice(gus, pvoice->number);
149 pvoice->flags &= ~SNDRV_GF1_VFLG_RUNNING;
150 }
151 }
152 }
153 spin_unlock_irqrestore(&gus->event_lock, flags);
154 }
155
156 /*
157 *
158 */
159
160 static void snd_gus_synth_free_port(void *private_data)
161 {
162 snd_gus_port_t * p = (snd_gus_port_t *)private_data;
163
164 if (p)
165 snd_midi_channel_free_set(p->chset);
166 }
167
168 static int snd_gus_synth_create_port(snd_gus_card_t * gus, int idx)
169 {
170 snd_gus_port_t * p;
171 snd_seq_port_callback_t callbacks;
172 char name[32];
173 int result;
174
175 p = &gus->gf1.seq_ports[idx];
176 p->chset = snd_midi_channel_alloc_set(16);
177 if (p->chset == NULL)
178 return -ENOMEM;
179 p->chset->private_data = p;
180 p->gus = gus;
181 p->client = gus->gf1.seq_client;
182
183 memset(&callbacks, 0, sizeof(callbacks));
184 callbacks.owner = THIS_MODULE;
185 callbacks.use = snd_gus_synth_use;
186 callbacks.unuse = snd_gus_synth_unuse;
187 callbacks.event_input = snd_gus_synth_event_input;
188 callbacks.private_free = snd_gus_synth_free_port;
189 callbacks.private_data = p;
190
191 sprintf(name, "%s port %i", gus->interwave ? "AMD InterWave" : "GF1", idx);
192 p->chset->port = snd_seq_event_port_attach(gus->gf1.seq_client,
193 &callbacks,
194 SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
195 SNDRV_SEQ_PORT_TYPE_DIRECT_SAMPLE |
196 SNDRV_SEQ_PORT_TYPE_SYNTH,
197 16, 0,
198 name);
199 if (p->chset->port < 0) {
200 result = p->chset->port;
201 snd_gus_synth_free_port(p);
202 return result;
203 }
204 p->port = p->chset->port;
205 return 0;
206 }
207
208 /*
209 *
210 */
211
212 static int snd_gus_synth_new_device(snd_seq_device_t *dev)
213 {
214 snd_gus_card_t *gus;
215 int client, i;
216 snd_seq_client_callback_t callbacks;
217 snd_seq_client_info_t cinfo;
218 snd_seq_port_subscribe_t sub;
219 snd_iwffff_ops_t *iwops;
220 snd_gf1_ops_t *gf1ops;
221 snd_simple_ops_t *simpleops;
222
223 gus = *(snd_gus_card_t**)SNDRV_SEQ_DEVICE_ARGPTR(dev);
224 if (gus == NULL)
225 return -EINVAL;
226
227 init_MUTEX(&gus->register_mutex);
228 gus->gf1.seq_client = -1;
229
230 /* allocate new client */
231 memset(&callbacks, 0, sizeof(callbacks));
232 callbacks.private_data = gus;
233 callbacks.allow_output = callbacks.allow_input = 1;
234 client = gus->gf1.seq_client =
235 snd_seq_create_kernel_client(gus->card, 1, &callbacks);
236 if (client < 0)
237 return client;
238
239 /* change name of client */
240 memset(&cinfo, 0, sizeof(cinfo));
241 cinfo.client = client;
242 cinfo.type = KERNEL_CLIENT;
243 sprintf(cinfo.name, gus->interwave ? "AMD InterWave" : "GF1");
244 snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo);
245
246 for (i = 0; i < 4; i++)
247 snd_gus_synth_create_port(gus, i);
248
249 gus->gf1.ilist = snd_seq_instr_list_new();
250 if (gus->gf1.ilist == NULL) {
251 snd_seq_delete_kernel_client(client);
252 gus->gf1.seq_client = -1;
253 return -ENOMEM;
254 }
255 gus->gf1.ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT;
256
257 simpleops = &gus->gf1.simple_ops;
258 snd_seq_simple_init(simpleops, gus, NULL);
259 simpleops->put_sample = snd_gus_simple_put_sample;
260 simpleops->get_sample = snd_gus_simple_get_sample;
261 simpleops->remove_sample = snd_gus_simple_remove_sample;
262 simpleops->notify = snd_gus_synth_instr_notify;
263
264 gf1ops = &gus->gf1.gf1_ops;
265 snd_seq_gf1_init(gf1ops, gus, &simpleops->kops);
266 gf1ops->put_sample = snd_gus_gf1_put_sample;
267 gf1ops->get_sample = snd_gus_gf1_get_sample;
268 gf1ops->remove_sample = snd_gus_gf1_remove_sample;
269 gf1ops->notify = snd_gus_synth_instr_notify;
270
271 iwops = &gus->gf1.iwffff_ops;
272 snd_seq_iwffff_init(iwops, gus, &gf1ops->kops);
273 iwops->put_sample = snd_gus_iwffff_put_sample;
274 iwops->get_sample = snd_gus_iwffff_get_sample;
275 iwops->remove_sample = snd_gus_iwffff_remove_sample;
276 iwops->notify = snd_gus_synth_instr_notify;
277
278 memset(&sub, 0, sizeof(sub));
279 sub.sender.client = SNDRV_SEQ_CLIENT_SYSTEM;
280 sub.sender.port = SNDRV_SEQ_PORT_SYSTEM_ANNOUNCE;
281 sub.dest.client = client;
282 sub.dest.port = 0;
283 snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT, &sub);
284
285 return 0;
286 }
287
288 static int snd_gus_synth_delete_device(snd_seq_device_t *dev)
289 {
290 snd_gus_card_t *gus;
291
292 gus = *(snd_gus_card_t**)SNDRV_SEQ_DEVICE_ARGPTR(dev);
293 if (gus == NULL)
294 return -EINVAL;
295
296 if (gus->gf1.seq_client >= 0) {
297 snd_seq_delete_kernel_client(gus->gf1.seq_client);
298 gus->gf1.seq_client = -1;
299 }
300 if (gus->gf1.ilist)
301 snd_seq_instr_list_free(&gus->gf1.ilist);
302 return 0;
303 }
304
305 static int __init alsa_gus_synth_init(void)
306 {
307 static snd_seq_dev_ops_t ops = {
308 snd_gus_synth_new_device,
309 snd_gus_synth_delete_device
310 };
311
312 return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_GUS, &ops,
313 sizeof(snd_gus_card_t*));
314 }
315
316 static void __exit alsa_gus_synth_exit(void)
317 {
318 snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_GUS);
319 }
320
321 module_init(alsa_gus_synth_init)
322 module_exit(alsa_gus_synth_exit)
323
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