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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Jaroslav Kyselac1017a42007-10-15 09:50:19 +02002 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Hannu Savolainen 1993-1996,
4 * Rob Hooft
5 *
6 * Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)
7 *
8 * Most if code is ported from OSS/Lite.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#include <sound/opl3.h>
27#include <asm/io.h>
28#include <linux/delay.h>
29#include <linux/init.h>
30#include <linux/slab.h>
31#include <linux/ioport.h>
32#include <sound/minors.h>
33
Jaroslav Kyselac1017a42007-10-15 09:50:19 +020034MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>, Hannu Savolainen 1993-1996, Rob Hooft");
Linus Torvalds1da177e2005-04-16 15:20:36 -070035MODULE_DESCRIPTION("Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)");
36MODULE_LICENSE("GPL");
37
38extern char snd_opl3_regmap[MAX_OPL2_VOICES][4];
39
Takashi Iwai5b1646a2005-11-17 14:13:14 +010040static void snd_opl2_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
Linus Torvalds1da177e2005-04-16 15:20:36 -070041{
42 unsigned long flags;
43 unsigned long port;
44
45 /*
46 * The original 2-OP synth requires a quite long delay
47 * after writing to a register.
48 */
49
50 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port;
51
52 spin_lock_irqsave(&opl3->reg_lock, flags);
53
54 outb((unsigned char) cmd, port);
55 udelay(10);
56
57 outb((unsigned char) val, port + 1);
58 udelay(30);
59
60 spin_unlock_irqrestore(&opl3->reg_lock, flags);
61}
62
Takashi Iwai5b1646a2005-11-17 14:13:14 +010063static void snd_opl3_command(struct snd_opl3 * opl3, unsigned short cmd, unsigned char val)
Linus Torvalds1da177e2005-04-16 15:20:36 -070064{
65 unsigned long flags;
66 unsigned long port;
67
68 /*
69 * The OPL-3 survives with just two INBs
70 * after writing to a register.
71 */
72
73 port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port;
74
75 spin_lock_irqsave(&opl3->reg_lock, flags);
76
77 outb((unsigned char) cmd, port);
78 inb(opl3->l_port);
79 inb(opl3->l_port);
80
81 outb((unsigned char) val, port + 1);
82 inb(opl3->l_port);
83 inb(opl3->l_port);
84
85 spin_unlock_irqrestore(&opl3->reg_lock, flags);
86}
87
Takashi Iwai5b1646a2005-11-17 14:13:14 +010088static int snd_opl3_detect(struct snd_opl3 * opl3)
Linus Torvalds1da177e2005-04-16 15:20:36 -070089{
90 /*
91 * This function returns 1 if the FM chip is present at the given I/O port
92 * The detection algorithm plays with the timer built in the FM chip and
93 * looks for a change in the status register.
94 *
95 * Note! The timers of the FM chip are not connected to AdLib (and compatible)
96 * boards.
97 *
98 * Note2! The chip is initialized if detected.
99 */
100
101 unsigned char stat1, stat2, signature;
102
103 /* Reset timers 1 and 2 */
104 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
105 /* Reset the IRQ of the FM chip */
106 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET);
107 signature = stat1 = inb(opl3->l_port); /* Status register */
108 if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */
109 snd_printd("OPL3: stat1 = 0x%x\n", stat1);
110 return -ENODEV;
111 }
112 /* Set timer1 to 0xff */
113 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff);
114 /* Unmask and start timer 1 */
115 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START);
116 /* Now we have to delay at least 80us */
117 udelay(200);
118 /* Read status after timers have expired */
119 stat2 = inb(opl3->l_port);
120 /* Stop the timers */
121 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK);
122 /* Reset the IRQ of the FM chip */
123 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET);
124 if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */
125 snd_printd("OPL3: stat2 = 0x%x\n", stat2);
126 return -ENODEV;
127 }
128
129 /* If the toplevel code knows exactly the type of chip, don't try
130 to detect it. */
131 if (opl3->hardware != OPL3_HW_AUTO)
132 return 0;
133
134 /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */
135 if (signature == 0x06) { /* OPL2 */
136 opl3->hardware = OPL3_HW_OPL2;
137 } else {
138 /*
139 * If we had an OPL4 chip, opl3->hardware would have been set
140 * by the OPL4 driver; so we can assume OPL3 here.
141 */
Takashi Iwai5e246b82008-08-08 17:12:47 +0200142 if (snd_BUG_ON(!opl3->r_port))
143 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 opl3->hardware = OPL3_HW_OPL3;
145 }
146 return 0;
147}
148
149/*
150 * AdLib timers
151 */
152
153/*
154 * Timer 1 - 80us
155 */
156
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100157static int snd_opl3_timer1_start(struct snd_timer * timer)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158{
159 unsigned long flags;
160 unsigned char tmp;
161 unsigned int ticks;
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100162 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164 opl3 = snd_timer_chip(timer);
165 spin_lock_irqsave(&opl3->timer_lock, flags);
166 ticks = timer->sticks;
167 tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK;
168 opl3->timer_enable = tmp;
169 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */
170 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */
171 spin_unlock_irqrestore(&opl3->timer_lock, flags);
172 return 0;
173}
174
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100175static int snd_opl3_timer1_stop(struct snd_timer * timer)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176{
177 unsigned long flags;
178 unsigned char tmp;
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100179 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180
181 opl3 = snd_timer_chip(timer);
182 spin_lock_irqsave(&opl3->timer_lock, flags);
183 tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START;
184 opl3->timer_enable = tmp;
185 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */
186 spin_unlock_irqrestore(&opl3->timer_lock, flags);
187 return 0;
188}
189
190/*
191 * Timer 2 - 320us
192 */
193
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100194static int snd_opl3_timer2_start(struct snd_timer * timer)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195{
196 unsigned long flags;
197 unsigned char tmp;
198 unsigned int ticks;
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100199 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201 opl3 = snd_timer_chip(timer);
202 spin_lock_irqsave(&opl3->timer_lock, flags);
203 ticks = timer->sticks;
204 tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK;
205 opl3->timer_enable = tmp;
206 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */
207 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */
208 spin_unlock_irqrestore(&opl3->timer_lock, flags);
209 return 0;
210}
211
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100212static int snd_opl3_timer2_stop(struct snd_timer * timer)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213{
214 unsigned long flags;
215 unsigned char tmp;
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100216 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218 opl3 = snd_timer_chip(timer);
219 spin_lock_irqsave(&opl3->timer_lock, flags);
220 tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START;
221 opl3->timer_enable = tmp;
222 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */
223 spin_unlock_irqrestore(&opl3->timer_lock, flags);
224 return 0;
225}
226
227/*
228
229 */
230
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100231static struct snd_timer_hardware snd_opl3_timer1 =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232{
233 .flags = SNDRV_TIMER_HW_STOP,
234 .resolution = 80000,
235 .ticks = 256,
236 .start = snd_opl3_timer1_start,
237 .stop = snd_opl3_timer1_stop,
238};
239
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100240static struct snd_timer_hardware snd_opl3_timer2 =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241{
242 .flags = SNDRV_TIMER_HW_STOP,
243 .resolution = 320000,
244 .ticks = 256,
245 .start = snd_opl3_timer2_start,
246 .stop = snd_opl3_timer2_stop,
247};
248
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100249static int snd_opl3_timer1_init(struct snd_opl3 * opl3, int timer_no)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100251 struct snd_timer *timer = NULL;
252 struct snd_timer_id tid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 int err;
254
255 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
256 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
257 tid.card = opl3->card->number;
258 tid.device = timer_no;
259 tid.subdevice = 0;
260 if ((err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer)) >= 0) {
261 strcpy(timer->name, "AdLib timer #1");
262 timer->private_data = opl3;
263 timer->hw = snd_opl3_timer1;
264 }
265 opl3->timer1 = timer;
266 return err;
267}
268
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100269static int snd_opl3_timer2_init(struct snd_opl3 * opl3, int timer_no)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100271 struct snd_timer *timer = NULL;
272 struct snd_timer_id tid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273 int err;
274
275 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
276 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
277 tid.card = opl3->card->number;
278 tid.device = timer_no;
279 tid.subdevice = 0;
280 if ((err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer)) >= 0) {
281 strcpy(timer->name, "AdLib timer #2");
282 timer->private_data = opl3;
283 timer->hw = snd_opl3_timer2;
284 }
285 opl3->timer2 = timer;
286 return err;
287}
288
289/*
290
291 */
292
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100293void snd_opl3_interrupt(struct snd_hwdep * hw)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294{
295 unsigned char status;
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100296 struct snd_opl3 *opl3;
297 struct snd_timer *timer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
299 if (hw == NULL)
300 return;
301
302 opl3 = hw->private_data;
303 status = inb(opl3->l_port);
304#if 0
Takashi Iwai45203832009-02-05 15:51:50 +0100305 snd_printk(KERN_DEBUG "AdLib IRQ status = 0x%x\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306#endif
307 if (!(status & 0x80))
308 return;
309
310 if (status & 0x40) {
311 timer = opl3->timer1;
312 snd_timer_interrupt(timer, timer->sticks);
313 }
314 if (status & 0x20) {
315 timer = opl3->timer2;
316 snd_timer_interrupt(timer, timer->sticks);
317 }
318}
319
Takashi Iwaiac19e192006-04-28 15:13:39 +0200320EXPORT_SYMBOL(snd_opl3_interrupt);
321
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322/*
323
324 */
325
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100326static int snd_opl3_free(struct snd_opl3 *opl3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327{
Takashi Iwai5e246b82008-08-08 17:12:47 +0200328 if (snd_BUG_ON(!opl3))
329 return -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 if (opl3->private_free)
331 opl3->private_free(opl3);
Takashi Iwai224a0332007-10-30 11:49:22 +0100332 snd_opl3_clear_patches(opl3);
Takashi Iwaib1d57762005-10-10 11:56:31 +0200333 release_and_free_resource(opl3->res_l_port);
334 release_and_free_resource(opl3->res_r_port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 kfree(opl3);
336 return 0;
337}
338
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100339static int snd_opl3_dev_free(struct snd_device *device)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100341 struct snd_opl3 *opl3 = device->device_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 return snd_opl3_free(opl3);
343}
344
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100345int snd_opl3_new(struct snd_card *card,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 unsigned short hardware,
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100347 struct snd_opl3 **ropl3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100349 static struct snd_device_ops ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 .dev_free = snd_opl3_dev_free,
351 };
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100352 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 int err;
354
355 *ropl3 = NULL;
Takashi Iwai561b2202005-09-09 14:22:34 +0200356 opl3 = kzalloc(sizeof(*opl3), GFP_KERNEL);
Takashi Iwai73e77ba2005-11-17 17:44:01 +0100357 if (opl3 == NULL) {
358 snd_printk(KERN_ERR "opl3: cannot allocate\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 return -ENOMEM;
Takashi Iwai73e77ba2005-11-17 17:44:01 +0100360 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362 opl3->card = card;
363 opl3->hardware = hardware;
364 spin_lock_init(&opl3->reg_lock);
365 spin_lock_init(&opl3->timer_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366
367 if ((err = snd_device_new(card, SNDRV_DEV_CODEC, opl3, &ops)) < 0) {
368 snd_opl3_free(opl3);
369 return err;
370 }
371
372 *ropl3 = opl3;
373 return 0;
374}
375
Takashi Iwaiac19e192006-04-28 15:13:39 +0200376EXPORT_SYMBOL(snd_opl3_new);
377
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100378int snd_opl3_init(struct snd_opl3 *opl3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379{
380 if (! opl3->command) {
381 printk(KERN_ERR "snd_opl3_init: command not defined!\n");
382 return -EINVAL;
383 }
384
385 opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT);
386 /* Melodic mode */
387 opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00);
388
389 switch (opl3->hardware & OPL3_HW_MASK) {
390 case OPL3_HW_OPL2:
391 opl3->max_voices = MAX_OPL2_VOICES;
392 break;
393 case OPL3_HW_OPL3:
394 case OPL3_HW_OPL4:
395 opl3->max_voices = MAX_OPL3_VOICES;
396 /* Enter OPL3 mode */
397 opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE);
398 }
399 return 0;
400}
401
Takashi Iwaiac19e192006-04-28 15:13:39 +0200402EXPORT_SYMBOL(snd_opl3_init);
403
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100404int snd_opl3_create(struct snd_card *card,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 unsigned long l_port,
406 unsigned long r_port,
407 unsigned short hardware,
408 int integrated,
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100409 struct snd_opl3 ** ropl3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100411 struct snd_opl3 *opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 int err;
413
414 *ropl3 = NULL;
415 if ((err = snd_opl3_new(card, hardware, &opl3)) < 0)
416 return err;
417 if (! integrated) {
418 if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) {
419 snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port);
Takashi Iwai676338a2006-01-03 19:56:55 +0100420 snd_device_free(card, opl3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 return -EBUSY;
422 }
423 if (r_port != 0 &&
424 (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) {
425 snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port);
Takashi Iwai676338a2006-01-03 19:56:55 +0100426 snd_device_free(card, opl3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 return -EBUSY;
428 }
429 }
430 opl3->l_port = l_port;
431 opl3->r_port = r_port;
432
433 switch (opl3->hardware) {
434 /* some hardware doesn't support timers */
435 case OPL3_HW_OPL3_SV:
436 case OPL3_HW_OPL3_CS:
437 case OPL3_HW_OPL3_FM801:
438 opl3->command = &snd_opl3_command;
439 break;
440 default:
441 opl3->command = &snd_opl2_command;
442 if ((err = snd_opl3_detect(opl3)) < 0) {
443 snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n",
444 opl3->l_port, opl3->r_port);
Takashi Iwai676338a2006-01-03 19:56:55 +0100445 snd_device_free(card, opl3);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446 return err;
447 }
448 /* detect routine returns correct hardware type */
449 switch (opl3->hardware & OPL3_HW_MASK) {
450 case OPL3_HW_OPL3:
451 case OPL3_HW_OPL4:
452 opl3->command = &snd_opl3_command;
453 }
454 }
455
456 snd_opl3_init(opl3);
457
458 *ropl3 = opl3;
459 return 0;
460}
461
Takashi Iwaiac19e192006-04-28 15:13:39 +0200462EXPORT_SYMBOL(snd_opl3_create);
463
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100464int snd_opl3_timer_new(struct snd_opl3 * opl3, int timer1_dev, int timer2_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465{
466 int err;
467
468 if (timer1_dev >= 0)
469 if ((err = snd_opl3_timer1_init(opl3, timer1_dev)) < 0)
470 return err;
471 if (timer2_dev >= 0) {
472 if ((err = snd_opl3_timer2_init(opl3, timer2_dev)) < 0) {
473 snd_device_free(opl3->card, opl3->timer1);
474 opl3->timer1 = NULL;
475 return err;
476 }
477 }
478 return 0;
479}
480
Takashi Iwaiac19e192006-04-28 15:13:39 +0200481EXPORT_SYMBOL(snd_opl3_timer_new);
482
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100483int snd_opl3_hwdep_new(struct snd_opl3 * opl3,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 int device, int seq_device,
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100485 struct snd_hwdep ** rhwdep)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486{
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100487 struct snd_hwdep *hw;
488 struct snd_card *card = opl3->card;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 int err;
490
491 if (rhwdep)
492 *rhwdep = NULL;
493
494 /* create hardware dependent device (direct FM) */
495
496 if ((err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw)) < 0) {
497 snd_device_free(card, opl3);
498 return err;
499 }
500 hw->private_data = opl3;
Takashi Iwai05c1afe2007-10-30 11:59:15 +0100501 hw->exclusive = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502#ifdef CONFIG_SND_OSSEMUL
503 if (device == 0) {
504 hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM;
505 sprintf(hw->oss_dev, "dmfm%i", card->number);
506 }
507#endif
508 strcpy(hw->name, hw->id);
509 switch (opl3->hardware & OPL3_HW_MASK) {
510 case OPL3_HW_OPL2:
511 strcpy(hw->name, "OPL2 FM");
512 hw->iface = SNDRV_HWDEP_IFACE_OPL2;
513 break;
514 case OPL3_HW_OPL3:
515 strcpy(hw->name, "OPL3 FM");
516 hw->iface = SNDRV_HWDEP_IFACE_OPL3;
517 break;
518 case OPL3_HW_OPL4:
519 strcpy(hw->name, "OPL4 FM");
520 hw->iface = SNDRV_HWDEP_IFACE_OPL4;
521 break;
522 }
523
524 /* operators - only ioctl */
525 hw->ops.open = snd_opl3_open;
526 hw->ops.ioctl = snd_opl3_ioctl;
Takashi Iwai224a0332007-10-30 11:49:22 +0100527 hw->ops.write = snd_opl3_write;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 hw->ops.release = snd_opl3_release;
529
Takashi Iwai04576522007-10-30 12:43:40 +0100530 opl3->hwdep = hw;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 opl3->seq_dev_num = seq_device;
532#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
533 if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3,
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100534 sizeof(struct snd_opl3 *), &opl3->seq_dev) >= 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 strcpy(opl3->seq_dev->name, hw->name);
Takashi Iwai5b1646a2005-11-17 14:13:14 +0100536 *(struct snd_opl3 **)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 }
538#endif
539 if (rhwdep)
540 *rhwdep = hw;
541 return 0;
542}
543
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544EXPORT_SYMBOL(snd_opl3_hwdep_new);
545
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546/*
547 * INIT part
548 */
549
550static int __init alsa_opl3_init(void)
551{
552 return 0;
553}
554
555static void __exit alsa_opl3_exit(void)
556{
557}
558
559module_init(alsa_opl3_init)
560module_exit(alsa_opl3_exit)