isa/gus/gus_reset.c

10 #include <sound/gus.h>
12 extern int snd_gf1_synth_init(struct snd_gus_card * gus);
13 extern void snd_gf1_synth_done(struct snd_gus_card * gus);
19 static void snd_gf1_default_interrupt_handler_midi_out(struct snd_gus_card * gus)
21 	snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x20);
24 static void snd_gf1_default_interrupt_handler_midi_in(struct snd_gus_card * gus)
26 	snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x80);
29 static void snd_gf1_default_interrupt_handler_timer1(struct snd_gus_card * gus)
31 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~4);
34 static void snd_gf1_default_interrupt_handler_timer2(struct snd_gus_card * gus)
36 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~8);
39 static void snd_gf1_default_interrupt_handler_wave_and_volume(struct snd_gus_card * gus, struct snd_gus_voice * voice)
41 	snd_gf1_i_ctrl_stop(gus, 0x00);
42 	snd_gf1_i_ctrl_stop(gus, 0x0d);
45 static void snd_gf1_default_interrupt_handler_dma_write(struct snd_gus_card * gus)
47 	snd_gf1_i_write8(gus, 0x41, 0x00);
50 static void snd_gf1_default_interrupt_handler_dma_read(struct snd_gus_card * gus)
52 	snd_gf1_i_write8(gus, 0x49, 0x00);
55 void snd_gf1_set_default_handlers(struct snd_gus_card * gus, unsigned int what)
58 		gus->gf1.interrupt_handler_midi_out = snd_gf1_default_interrupt_handler_midi_out;
60 		gus->gf1.interrupt_handler_midi_in = snd_gf1_default_interrupt_handler_midi_in;
62 		gus->gf1.interrupt_handler_timer1 = snd_gf1_default_interrupt_handler_timer1;
64 		gus->gf1.interrupt_handler_timer2 = snd_gf1_default_interrupt_handler_timer2;
68 		voice = &gus->gf1.voices[what & 0xffff];
75 		gus->gf1.interrupt_handler_dma_write = snd_gf1_default_interrupt_handler_dma_write;
77 		gus->gf1.interrupt_handler_dma_read = snd_gf1_default_interrupt_handler_dma_read;
84 static void snd_gf1_clear_regs(struct snd_gus_card * gus)
88 	spin_lock_irqsave(&gus->reg_lock, flags);
89 	inb(GUSP(gus, IRQSTAT));
90 	snd_gf1_write8(gus, 0x41, 0);	/* DRAM DMA Control Register */
91 	snd_gf1_write8(gus, 0x45, 0);	/* Timer Control */
92 	snd_gf1_write8(gus, 0x49, 0);	/* Sampling Control Register */
93 	spin_unlock_irqrestore(&gus->reg_lock, flags);
96 static void snd_gf1_look_regs(struct snd_gus_card * gus)
100 	spin_lock_irqsave(&gus->reg_lock, flags);
101 	snd_gf1_look8(gus, 0x41);	/* DRAM DMA Control Register */
102 	snd_gf1_look8(gus, 0x49);	/* Sampling Control Register */
103 	inb(GUSP(gus, IRQSTAT));
104 	snd_gf1_read8(gus, 0x0f);	/* IRQ Source Register */
105 	spin_unlock_irqrestore(&gus->reg_lock, flags);
112 void snd_gf1_smart_stop_voice(struct snd_gus_card * gus, unsigned short voice)
116 	spin_lock_irqsave(&gus->reg_lock, flags);
117 	snd_gf1_select_voice(gus, voice);
119 	printk(KERN_DEBUG " -%i- smart stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
121 	snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
122 	snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
123 	spin_unlock_irqrestore(&gus->reg_lock, flags);
126 void snd_gf1_stop_voice(struct snd_gus_card * gus, unsigned short voice)
130 	spin_lock_irqsave(&gus->reg_lock, flags);
131 	snd_gf1_select_voice(gus, voice);
133 	printk(KERN_DEBUG " -%i- stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
135 	snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
136 	snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
137 	if (gus->gf1.enh_mode)
138 		snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
139 	spin_unlock_irqrestore(&gus->reg_lock, flags);
141 	snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_VIBRATO);
142 	snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_TREMOLO);
146 static void snd_gf1_clear_voices(struct snd_gus_card * gus, unsigned short v_min,
153 	daddr = gus->gf1.default_voice_address << 4;
156 		if (gus->gf1.syn_voices)
157 			gus->gf1.syn_voices[i].flags = ~VFLG_DYNAMIC;
159 		spin_lock_irqsave(&gus->reg_lock, flags);
160 		snd_gf1_select_voice(gus, i);
161 		snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);	/* Voice Control Register = voice stop */
162 		snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);	/* Volume Ramp Control Register = ramp off */
163 		if (gus->gf1.enh_mode)
164 			snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, gus->gf1.memory ? 0x02 : 0x82);	/* Deactivate voice */
165 		w_16 = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & 0x04;
166 		snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, 0x400);
167 		snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, daddr, w_16);
168 		snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, daddr, w_16);
169 		snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, 0);
170 		snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, 0);
171 		snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0);
172 		snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, 0);
173 		snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, daddr, w_16);
174 		snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, 7);
175 		if (gus->gf1.enh_mode) {
176 			snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
177 			snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, 0);
178 			snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, 0);
180 		spin_unlock_irqrestore(&gus->reg_lock, flags);
182 		snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_VIBRATO);
183 		snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_TREMOLO);
188 void snd_gf1_stop_voices(struct snd_gus_card * gus, unsigned short v_min, unsigned short v_max)
196 			spin_lock_irqsave(&gus->reg_lock, flags);
197 			snd_gf1_select_voice(gus, i);
198 			ramp_end = snd_gf1_read16(gus, 9) >> 8;
201 				snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 20);	/* ramp rate */
202 				snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);	/* ramp start */
203 				snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, ramp_end);	/* ramp end */
204 				snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);	/* ramp down */
205 				if (gus->gf1.enh_mode) {
206 					snd_gf1_delay(gus);
207 					snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);
210 			spin_unlock_irqrestore(&gus->reg_lock, flags);
214 	snd_gf1_clear_voices(gus, v_min, v_max);
217 static void snd_gf1_alloc_voice_use(struct snd_gus_card * gus,
224 		gus->gf1.pcm_alloc_voices++;
240 struct snd_gus_voice *snd_gf1_alloc_voice(struct snd_gus_card * gus, int type, int client, int port)
246 	spin_lock_irqsave(&gus->voice_alloc, flags);
248 		if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels) {
249 			spin_unlock_irqrestore(&gus->voice_alloc, flags);
254 		pvoice = &gus->gf1.voices[idx];
256 			snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
257 			spin_unlock_irqrestore(&gus->voice_alloc, flags);
262 		pvoice = &gus->gf1.voices[idx];
264 			snd_gf1_clear_voices(gus, pvoice->number, pvoice->number);
265 			snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
266 			spin_unlock_irqrestore(&gus->voice_alloc, flags);
270 	spin_unlock_irqrestore(&gus->voice_alloc, flags);
274 void snd_gf1_free_voice(struct snd_gus_card * gus, struct snd_gus_voice *voice)
281 	snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | voice->number);
282 	snd_gf1_clear_voices(gus, voice->number, voice->number);
283 	spin_lock_irqsave(&gus->voice_alloc, flags);
288 		gus->gf1.pcm_alloc_voices--;
291 	spin_unlock_irqrestore(&gus->voice_alloc, flags);
300 int snd_gf1_start(struct snd_gus_card * gus)
305 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);	/* reset GF1 */
307 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);	/* disable IRQ & DAC */
309 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
311 	snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_ALL);
313 		gus->gf1.voices[i].number = i;
314 		snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | i);
317 	snd_gf1_uart_cmd(gus, 0x03);	/* huh.. this cleanup took me some time... */
319 	if (gus->gf1.enh_mode) {	/* enhanced mode !!!! */
320 		snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
321 		snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
323 	snd_gf1_clear_regs(gus);
324 	snd_gf1_select_active_voices(gus);
325 	snd_gf1_delay(gus);
326 	gus->gf1.default_voice_address = gus->gf1.memory > 0 ? 0 : 512 - 8;
328 	if (gus->gf1.enh_mode && gus->gf1.memory) {
329 		gus->gf1.hw_lfo = 1;
330 		gus->gf1.default_voice_address += 1024;
332 		gus->gf1.sw_lfo = 1;
335 	snd_gf1_lfo_init(gus);
337 	if (gus->gf1.memory > 0)
339 			snd_gf1_poke(gus, gus->gf1.default_voice_address + i, 0);
340 	snd_gf1_clear_regs(gus);
341 	snd_gf1_clear_voices(gus, 0, 31);
342 	snd_gf1_look_regs(gus);
344 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7);	/* Reset Register = IRQ enable, DAC enable */
346 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7);	/* Reset Register = IRQ enable, DAC enable */
347 	if (gus->gf1.enh_mode) {	/* enhanced mode !!!! */
348 		snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
349 		snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
351 	while ((snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ) & 0xc0) != 0xc0);
353 	spin_lock_irqsave(&gus->reg_lock, flags);
354 	outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
355 	outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
356 	spin_unlock_irqrestore(&gus->reg_lock, flags);
358 	snd_gf1_timers_init(gus);
359 	snd_gf1_look_regs(gus);
360 	snd_gf1_mem_init(gus);
361 	snd_gf1_mem_proc_init(gus);
363 	snd_gus_irq_profile_init(gus);
367 	if (gus->pnp_flag) {
368 		if (gus->chip.playback_fifo_size > 0)
369 			snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR, gus->chip.playback_fifo_block->ptr >> 8);
370 		if (gus->chip.record_fifo_size > 0)
371 			snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR, gus->chip.record_fifo_block->ptr >> 8);
372 		snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_SIZE, gus->chip.interwave_fifo_reg);
383 int snd_gf1_stop(struct snd_gus_card * gus)
385 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0); /* stop all timers */
386 	snd_gf1_stop_voices(gus, 0, 31);		/* stop all voices */
387 	snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);	/* disable IRQ & DAC */
388 	snd_gf1_timers_done(gus);
389 	snd_gf1_mem_done(gus);
391 	snd_gf1_lfo_done(gus);