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-rw-r--r--sound/isa/gus/gus_reset.c413
1 files changed, 413 insertions, 0 deletions
diff --git a/sound/isa/gus/gus_reset.c b/sound/isa/gus/gus_reset.c
new file mode 100644
index 000000000000..b4e66f6a10ae
--- /dev/null
+++ b/sound/isa/gus/gus_reset.c
@@ -0,0 +1,413 @@
1/*
2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
3 *
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21#include <sound/driver.h>
22#include <linux/delay.h>
23#include <linux/interrupt.h>
24#include <linux/time.h>
25#include <sound/core.h>
26#include <sound/gus.h>
27
28extern void snd_gf1_timers_init(snd_gus_card_t * gus);
29extern void snd_gf1_timers_done(snd_gus_card_t * gus);
30extern int snd_gf1_synth_init(snd_gus_card_t * gus);
31extern void snd_gf1_synth_done(snd_gus_card_t * gus);
32
33/*
34 * ok.. default interrupt handlers...
35 */
36
37static void snd_gf1_default_interrupt_handler_midi_out(snd_gus_card_t * gus)
38{
39 snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x20);
40}
41
42static void snd_gf1_default_interrupt_handler_midi_in(snd_gus_card_t * gus)
43{
44 snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x80);
45}
46
47static void snd_gf1_default_interrupt_handler_timer1(snd_gus_card_t * gus)
48{
49 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~4);
50}
51
52static void snd_gf1_default_interrupt_handler_timer2(snd_gus_card_t * gus)
53{
54 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~8);
55}
56
57static void snd_gf1_default_interrupt_handler_wave_and_volume(snd_gus_card_t * gus, snd_gus_voice_t * voice)
58{
59 snd_gf1_i_ctrl_stop(gus, 0x00);
60 snd_gf1_i_ctrl_stop(gus, 0x0d);
61}
62
63static void snd_gf1_default_interrupt_handler_dma_write(snd_gus_card_t * gus)
64{
65 snd_gf1_i_write8(gus, 0x41, 0x00);
66}
67
68static void snd_gf1_default_interrupt_handler_dma_read(snd_gus_card_t * gus)
69{
70 snd_gf1_i_write8(gus, 0x49, 0x00);
71}
72
73void snd_gf1_set_default_handlers(snd_gus_card_t * gus, unsigned int what)
74{
75 if (what & SNDRV_GF1_HANDLER_MIDI_OUT)
76 gus->gf1.interrupt_handler_midi_out = snd_gf1_default_interrupt_handler_midi_out;
77 if (what & SNDRV_GF1_HANDLER_MIDI_IN)
78 gus->gf1.interrupt_handler_midi_in = snd_gf1_default_interrupt_handler_midi_in;
79 if (what & SNDRV_GF1_HANDLER_TIMER1)
80 gus->gf1.interrupt_handler_timer1 = snd_gf1_default_interrupt_handler_timer1;
81 if (what & SNDRV_GF1_HANDLER_TIMER2)
82 gus->gf1.interrupt_handler_timer2 = snd_gf1_default_interrupt_handler_timer2;
83 if (what & SNDRV_GF1_HANDLER_VOICE) {
84 snd_gus_voice_t *voice;
85
86 voice = &gus->gf1.voices[what & 0xffff];
87 voice->handler_wave =
88 voice->handler_volume = snd_gf1_default_interrupt_handler_wave_and_volume;
89 voice->handler_effect = NULL;
90 voice->volume_change = NULL;
91 }
92 if (what & SNDRV_GF1_HANDLER_DMA_WRITE)
93 gus->gf1.interrupt_handler_dma_write = snd_gf1_default_interrupt_handler_dma_write;
94 if (what & SNDRV_GF1_HANDLER_DMA_READ)
95 gus->gf1.interrupt_handler_dma_read = snd_gf1_default_interrupt_handler_dma_read;
96}
97
98/*
99
100 */
101
102static void snd_gf1_clear_regs(snd_gus_card_t * gus)
103{
104 unsigned long flags;
105
106 spin_lock_irqsave(&gus->reg_lock, flags);
107 inb(GUSP(gus, IRQSTAT));
108 snd_gf1_write8(gus, 0x41, 0); /* DRAM DMA Control Register */
109 snd_gf1_write8(gus, 0x45, 0); /* Timer Control */
110 snd_gf1_write8(gus, 0x49, 0); /* Sampling Control Register */
111 spin_unlock_irqrestore(&gus->reg_lock, flags);
112}
113
114static void snd_gf1_look_regs(snd_gus_card_t * gus)
115{
116 unsigned long flags;
117
118 spin_lock_irqsave(&gus->reg_lock, flags);
119 snd_gf1_look8(gus, 0x41); /* DRAM DMA Control Register */
120 snd_gf1_look8(gus, 0x49); /* Sampling Control Register */
121 inb(GUSP(gus, IRQSTAT));
122 snd_gf1_read8(gus, 0x0f); /* IRQ Source Register */
123 spin_unlock_irqrestore(&gus->reg_lock, flags);
124}
125
126/*
127 * put selected GF1 voices to initial stage...
128 */
129
130void snd_gf1_smart_stop_voice(snd_gus_card_t * gus, unsigned short voice)
131{
132 unsigned long flags;
133
134 spin_lock_irqsave(&gus->reg_lock, flags);
135 snd_gf1_select_voice(gus, voice);
136#if 0
137 printk(" -%i- smart stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
138#endif
139 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
140 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
141 spin_unlock_irqrestore(&gus->reg_lock, flags);
142}
143
144void snd_gf1_stop_voice(snd_gus_card_t * gus, unsigned short voice)
145{
146 unsigned long flags;
147
148 spin_lock_irqsave(&gus->reg_lock, flags);
149 snd_gf1_select_voice(gus, voice);
150#if 0
151 printk(" -%i- stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
152#endif
153 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
154 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
155 if (gus->gf1.enh_mode)
156 snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
157 spin_unlock_irqrestore(&gus->reg_lock, flags);
158#if 0
159 snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_VIBRATO);
160 snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_TREMOLO);
161#endif
162}
163
164void snd_gf1_clear_voices(snd_gus_card_t * gus, unsigned short v_min, unsigned short v_max)
165{
166 unsigned long flags;
167 unsigned int daddr;
168 unsigned short i, w_16;
169
170 daddr = gus->gf1.default_voice_address << 4;
171 for (i = v_min; i <= v_max; i++) {
172#if 0
173 if (gus->gf1.syn_voices)
174 gus->gf1.syn_voices[i].flags = ~VFLG_DYNAMIC;
175#endif
176 spin_lock_irqsave(&gus->reg_lock, flags);
177 snd_gf1_select_voice(gus, i);
178 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); /* Voice Control Register = voice stop */
179 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); /* Volume Ramp Control Register = ramp off */
180 if (gus->gf1.enh_mode)
181 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, gus->gf1.memory ? 0x02 : 0x82); /* Deactivate voice */
182 w_16 = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & 0x04;
183 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, 0x400);
184 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, daddr, w_16);
185 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, daddr, w_16);
186 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, 0);
187 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, 0);
188 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0);
189 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, 0);
190 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, daddr, w_16);
191 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, 7);
192 if (gus->gf1.enh_mode) {
193 snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
194 snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, 0);
195 snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, 0);
196 }
197 spin_unlock_irqrestore(&gus->reg_lock, flags);
198#if 0
199 snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_VIBRATO);
200 snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_TREMOLO);
201#endif
202 }
203}
204
205void snd_gf1_stop_voices(snd_gus_card_t * gus, unsigned short v_min, unsigned short v_max)
206{
207 unsigned long flags;
208 short i, ramp_ok;
209 unsigned short ramp_end;
210
211 if (!in_interrupt()) { /* this can't be done in interrupt */
212 for (i = v_min, ramp_ok = 0; i <= v_max; i++) {
213 spin_lock_irqsave(&gus->reg_lock, flags);
214 snd_gf1_select_voice(gus, i);
215 ramp_end = snd_gf1_read16(gus, 9) >> 8;
216 if (ramp_end > SNDRV_GF1_MIN_OFFSET) {
217 ramp_ok++;
218 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 20); /* ramp rate */
219 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET); /* ramp start */
220 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, ramp_end); /* ramp end */
221 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40); /* ramp down */
222 if (gus->gf1.enh_mode) {
223 snd_gf1_delay(gus);
224 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);
225 }
226 }
227 spin_unlock_irqrestore(&gus->reg_lock, flags);
228 }
229 msleep_interruptible(50);
230 }
231 snd_gf1_clear_voices(gus, v_min, v_max);
232}
233
234static void snd_gf1_alloc_voice_use(snd_gus_card_t * gus,
235 snd_gus_voice_t * pvoice,
236 int type, int client, int port)
237{
238 pvoice->use = 1;
239 switch (type) {
240 case SNDRV_GF1_VOICE_TYPE_PCM:
241 gus->gf1.pcm_alloc_voices++;
242 pvoice->pcm = 1;
243 break;
244 case SNDRV_GF1_VOICE_TYPE_SYNTH:
245 pvoice->synth = 1;
246 pvoice->client = client;
247 pvoice->port = port;
248 break;
249 case SNDRV_GF1_VOICE_TYPE_MIDI:
250 pvoice->midi = 1;
251 pvoice->client = client;
252 pvoice->port = port;
253 break;
254 }
255}
256
257snd_gus_voice_t *snd_gf1_alloc_voice(snd_gus_card_t * gus, int type, int client, int port)
258{
259 snd_gus_voice_t *pvoice;
260 unsigned long flags;
261 int idx;
262
263 spin_lock_irqsave(&gus->voice_alloc, flags);
264 if (type == SNDRV_GF1_VOICE_TYPE_PCM) {
265 if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels) {
266 spin_unlock_irqrestore(&gus->voice_alloc, flags);
267 return NULL;
268 }
269 }
270 for (idx = 0; idx < 32; idx++) {
271 pvoice = &gus->gf1.voices[idx];
272 if (!pvoice->use) {
273 snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
274 spin_unlock_irqrestore(&gus->voice_alloc, flags);
275 return pvoice;
276 }
277 }
278 for (idx = 0; idx < 32; idx++) {
279 pvoice = &gus->gf1.voices[idx];
280 if (pvoice->midi && !pvoice->client) {
281 snd_gf1_clear_voices(gus, pvoice->number, pvoice->number);
282 snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
283 spin_unlock_irqrestore(&gus->voice_alloc, flags);
284 return pvoice;
285 }
286 }
287 spin_unlock_irqrestore(&gus->voice_alloc, flags);
288 return NULL;
289}
290
291void snd_gf1_free_voice(snd_gus_card_t * gus, snd_gus_voice_t *voice)
292{
293 unsigned long flags;
294 void (*private_free)(snd_gus_voice_t *voice);
295 void *private_data;
296
297 if (voice == NULL || !voice->use)
298 return;
299 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | voice->number);
300 snd_gf1_clear_voices(gus, voice->number, voice->number);
301 spin_lock_irqsave(&gus->voice_alloc, flags);
302 private_free = voice->private_free;
303 private_data = voice->private_data;
304 voice->private_free = NULL;
305 voice->private_data = NULL;
306 if (voice->pcm)
307 gus->gf1.pcm_alloc_voices--;
308 voice->use = voice->pcm = 0;
309 voice->sample_ops = NULL;
310 spin_unlock_irqrestore(&gus->voice_alloc, flags);
311 if (private_free)
312 private_free(voice);
313}
314
315/*
316 * call this function only by start of driver
317 */
318
319int snd_gf1_start(snd_gus_card_t * gus)
320{
321 unsigned long flags;
322 unsigned int i;
323
324 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
325 udelay(160);
326 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* disable IRQ & DAC */
327 udelay(160);
328 snd_gf1_i_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
329
330 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_ALL);
331 for (i = 0; i < 32; i++) {
332 gus->gf1.voices[i].number = i;
333 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | i);
334 }
335
336 snd_gf1_uart_cmd(gus, 0x03); /* huh.. this cleanup took me some time... */
337
338 if (gus->gf1.enh_mode) { /* enhanced mode !!!! */
339 snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
340 snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
341 }
342 snd_gf1_clear_regs(gus);
343 snd_gf1_select_active_voices(gus);
344 snd_gf1_delay(gus);
345 gus->gf1.default_voice_address = gus->gf1.memory > 0 ? 0 : 512 - 8;
346 /* initialize LFOs & clear LFOs memory */
347 if (gus->gf1.enh_mode && gus->gf1.memory) {
348 gus->gf1.hw_lfo = 1;
349 gus->gf1.default_voice_address += 1024;
350 } else {
351 gus->gf1.sw_lfo = 1;
352 }
353#if 0
354 snd_gf1_lfo_init(gus);
355#endif
356 if (gus->gf1.memory > 0)
357 for (i = 0; i < 4; i++)
358 snd_gf1_poke(gus, gus->gf1.default_voice_address + i, 0);
359 snd_gf1_clear_regs(gus);
360 snd_gf1_clear_voices(gus, 0, 31);
361 snd_gf1_look_regs(gus);
362 udelay(160);
363 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7); /* Reset Register = IRQ enable, DAC enable */
364 udelay(160);
365 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7); /* Reset Register = IRQ enable, DAC enable */
366 if (gus->gf1.enh_mode) { /* enhanced mode !!!! */
367 snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
368 snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
369 }
370 while ((snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ) & 0xc0) != 0xc0);
371
372 spin_lock_irqsave(&gus->reg_lock, flags);
373 outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
374 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
375 spin_unlock_irqrestore(&gus->reg_lock, flags);
376
377 snd_gf1_timers_init(gus);
378 snd_gf1_look_regs(gus);
379 snd_gf1_mem_init(gus);
380 snd_gf1_mem_proc_init(gus);
381#ifdef CONFIG_SND_DEBUG
382 snd_gus_irq_profile_init(gus);
383#endif
384
385#if 0
386 if (gus->pnp_flag) {
387 if (gus->chip.playback_fifo_size > 0)
388 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR, gus->chip.playback_fifo_block->ptr >> 8);
389 if (gus->chip.record_fifo_size > 0)
390 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR, gus->chip.record_fifo_block->ptr >> 8);
391 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_SIZE, gus->chip.interwave_fifo_reg);
392 }
393#endif
394
395 return 0;
396}
397
398/*
399 * call this function only by shutdown of driver
400 */
401
402int snd_gf1_stop(snd_gus_card_t * gus)
403{
404 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0); /* stop all timers */
405 snd_gf1_stop_voices(gus, 0, 31); /* stop all voices */
406 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* disable IRQ & DAC */
407 snd_gf1_timers_done(gus);
408 snd_gf1_mem_done(gus);
409#if 0
410 snd_gf1_lfo_done(gus);
411#endif
412 return 0;
413}
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