2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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.
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.
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
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>
28 extern void snd_gf1_timers_init(struct snd_gus_card * gus);
29 extern void snd_gf1_timers_done(struct snd_gus_card * gus);
30 extern int snd_gf1_synth_init(struct snd_gus_card * gus);
31 extern void snd_gf1_synth_done(struct snd_gus_card * gus);
34 * ok.. default interrupt handlers...
37 static void snd_gf1_default_interrupt_handler_midi_out(struct snd_gus_card * gus)
39 snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x20);
42 static void snd_gf1_default_interrupt_handler_midi_in(struct snd_gus_card * gus)
44 snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x80);
47 static void snd_gf1_default_interrupt_handler_timer1(struct snd_gus_card * gus)
49 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~4);
52 static void snd_gf1_default_interrupt_handler_timer2(struct snd_gus_card * gus)
54 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~8);
57 static void snd_gf1_default_interrupt_handler_wave_and_volume(struct snd_gus_card * gus, struct snd_gus_voice * voice)
59 snd_gf1_i_ctrl_stop(gus, 0x00);
60 snd_gf1_i_ctrl_stop(gus, 0x0d);
63 static void snd_gf1_default_interrupt_handler_dma_write(struct snd_gus_card * gus)
65 snd_gf1_i_write8(gus, 0x41, 0x00);
68 static void snd_gf1_default_interrupt_handler_dma_read(struct snd_gus_card * gus)
70 snd_gf1_i_write8(gus, 0x49, 0x00);
73 void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what)
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 struct snd_gus_voice *voice;
86 voice = &gus->gf1.voices[what & 0xffff];
88 voice->handler_volume = snd_gf1_default_interrupt_handler_wave_and_volume;
89 voice->handler_effect = NULL;
90 voice->volume_change = NULL;
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;
102 static void snd_gf1_clear_regs(struct snd_gus_card * gus)
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);
114 static void snd_gf1_look_regs(struct snd_gus_card * gus)
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);
127 * put selected GF1 voices to initial stage...
130 void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice)
134 spin_lock_irqsave(&gus->reg_lock, flags);
135 snd_gf1_select_voice(gus, voice);
137 printk(KERN_DEBUG " -%i- smart stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
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);
144 void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice)
148 spin_lock_irqsave(&gus->reg_lock, flags);
149 snd_gf1_select_voice(gus, voice);
151 printk(KERN_DEBUG " -%i- stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
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);
159 snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_VIBRATO);
160 snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_TREMOLO);
164 static void snd_gf1_clear_voices(struct snd_gus_card * gus, unsigned short v_min,
165 unsigned short v_max)
169 unsigned short i, w_16;
171 daddr = gus->gf1.default_voice_address << 4;
172 for (i = v_min; i <= v_max; i++) {
174 if (gus->gf1.syn_voices)
175 gus->gf1.syn_voices[i].flags = ~VFLG_DYNAMIC;
177 spin_lock_irqsave(&gus->reg_lock, flags);
178 snd_gf1_select_voice(gus, i);
179 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL); /* Voice Control Register = voice stop */
180 snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL); /* Volume Ramp Control Register = ramp off */
181 if (gus->gf1.enh_mode)
182 snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, gus->gf1.memory ? 0x02 : 0x82); /* Deactivate voice */
183 w_16 = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & 0x04;
184 snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, 0x400);
185 snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, daddr, w_16);
186 snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, daddr, w_16);
187 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, 0);
188 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, 0);
189 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0);
190 snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, 0);
191 snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, daddr, w_16);
192 snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, 7);
193 if (gus->gf1.enh_mode) {
194 snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
195 snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, 0);
196 snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, 0);
198 spin_unlock_irqrestore(&gus->reg_lock, flags);
200 snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_VIBRATO);
201 snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_TREMOLO);
206 void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max)
210 unsigned short ramp_end;
212 if (!in_interrupt()) { /* this can't be done in interrupt */
213 for (i = v_min, ramp_ok = 0; i <= v_max; i++) {
214 spin_lock_irqsave(&gus->reg_lock, flags);
215 snd_gf1_select_voice(gus, i);
216 ramp_end = snd_gf1_read16(gus, 9) >> 8;
217 if (ramp_end > SNDRV_GF1_MIN_OFFSET) {
219 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 20); /* ramp rate */
220 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET); /* ramp start */
221 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, ramp_end); /* ramp end */
222 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40); /* ramp down */
223 if (gus->gf1.enh_mode) {
225 snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);
228 spin_unlock_irqrestore(&gus->reg_lock, flags);
230 msleep_interruptible(50);
232 snd_gf1_clear_voices(gus, v_min, v_max);
235 static void snd_gf1_alloc_voice_use(struct snd_gus_card * gus,
236 struct snd_gus_voice * pvoice,
237 int type, int client, int port)
241 case SNDRV_GF1_VOICE_TYPE_PCM:
242 gus->gf1.pcm_alloc_voices++;
245 case SNDRV_GF1_VOICE_TYPE_SYNTH:
247 pvoice->client = client;
250 case SNDRV_GF1_VOICE_TYPE_MIDI:
252 pvoice->client = client;
258 struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port)
260 struct snd_gus_voice *pvoice;
264 spin_lock_irqsave(&gus->voice_alloc, flags);
265 if (type == SNDRV_GF1_VOICE_TYPE_PCM) {
266 if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels) {
267 spin_unlock_irqrestore(&gus->voice_alloc, flags);
271 for (idx = 0; idx < 32; idx++) {
272 pvoice = &gus->gf1.voices[idx];
274 snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
275 spin_unlock_irqrestore(&gus->voice_alloc, flags);
279 for (idx = 0; idx < 32; idx++) {
280 pvoice = &gus->gf1.voices[idx];
281 if (pvoice->midi && !pvoice->client) {
282 snd_gf1_clear_voices(gus, pvoice->number, pvoice->number);
283 snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
284 spin_unlock_irqrestore(&gus->voice_alloc, flags);
288 spin_unlock_irqrestore(&gus->voice_alloc, flags);
292 void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice)
295 void (*private_free)(struct snd_gus_voice *voice);
298 if (voice == NULL || !voice->use)
300 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | voice->number);
301 snd_gf1_clear_voices(gus, voice->number, voice->number);
302 spin_lock_irqsave(&gus->voice_alloc, flags);
303 private_free = voice->private_free;
304 private_data = voice->private_data;
305 voice->private_free = NULL;
306 voice->private_data = NULL;
308 gus->gf1.pcm_alloc_voices--;
309 voice->use = voice->pcm = 0;
310 voice->sample_ops = NULL;
311 spin_unlock_irqrestore(&gus->voice_alloc, flags);
317 * call this function only by start of driver
320 int snd_gf1_start(struct snd_gus_card * gus)
325 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0); /* reset GF1 */
327 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* disable IRQ & DAC */
329 snd_gf1_i_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
331 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_ALL);
332 for (i = 0; i < 32; i++) {
333 gus->gf1.voices[i].number = i;
334 snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | i);
337 snd_gf1_uart_cmd(gus, 0x03); /* huh.. this cleanup took me some time... */
339 if (gus->gf1.enh_mode) { /* enhanced mode !!!! */
340 snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
341 snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
343 snd_gf1_clear_regs(gus);
344 snd_gf1_select_active_voices(gus);
346 gus->gf1.default_voice_address = gus->gf1.memory > 0 ? 0 : 512 - 8;
347 /* initialize LFOs & clear LFOs memory */
348 if (gus->gf1.enh_mode && gus->gf1.memory) {
350 gus->gf1.default_voice_address += 1024;
355 snd_gf1_lfo_init(gus);
357 if (gus->gf1.memory > 0)
358 for (i = 0; i < 4; i++)
359 snd_gf1_poke(gus, gus->gf1.default_voice_address + i, 0);
360 snd_gf1_clear_regs(gus);
361 snd_gf1_clear_voices(gus, 0, 31);
362 snd_gf1_look_regs(gus);
364 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7); /* Reset Register = IRQ enable, DAC enable */
366 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7); /* Reset Register = IRQ enable, DAC enable */
367 if (gus->gf1.enh_mode) { /* enhanced mode !!!! */
368 snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
369 snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
371 while ((snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ) & 0xc0) != 0xc0);
373 spin_lock_irqsave(&gus->reg_lock, flags);
374 outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
375 outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
376 spin_unlock_irqrestore(&gus->reg_lock, flags);
378 snd_gf1_timers_init(gus);
379 snd_gf1_look_regs(gus);
380 snd_gf1_mem_init(gus);
381 snd_gf1_mem_proc_init(gus);
382 #ifdef CONFIG_SND_DEBUG
383 snd_gus_irq_profile_init(gus);
388 if (gus->chip.playback_fifo_size > 0)
389 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR, gus->chip.playback_fifo_block->ptr >> 8);
390 if (gus->chip.record_fifo_size > 0)
391 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR, gus->chip.record_fifo_block->ptr >> 8);
392 snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_SIZE, gus->chip.interwave_fifo_reg);
400 * call this function only by shutdown of driver
403 int snd_gf1_stop(struct snd_gus_card * gus)
405 snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0); /* stop all timers */
406 snd_gf1_stop_voices(gus, 0, 31); /* stop all voices */
407 snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1); /* disable IRQ & DAC */
408 snd_gf1_timers_done(gus);
409 snd_gf1_mem_done(gus);
411 snd_gf1_lfo_done(gus);