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1da177e4 LT |
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 | ||
28 | extern void snd_gf1_timers_init(snd_gus_card_t * gus); | |
29 | extern void snd_gf1_timers_done(snd_gus_card_t * gus); | |
30 | extern int snd_gf1_synth_init(snd_gus_card_t * gus); | |
31 | extern void snd_gf1_synth_done(snd_gus_card_t * gus); | |
32 | ||
33 | /* | |
34 | * ok.. default interrupt handlers... | |
35 | */ | |
36 | ||
37 | static 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 | ||
42 | static 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 | ||
47 | static 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 | ||
52 | static 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 | ||
57 | static 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 | ||
63 | static void snd_gf1_default_interrupt_handler_dma_write(snd_gus_card_t * gus) | |
64 | { | |
65 | snd_gf1_i_write8(gus, 0x41, 0x00); | |
66 | } | |
67 | ||
68 | static void snd_gf1_default_interrupt_handler_dma_read(snd_gus_card_t * gus) | |
69 | { | |
70 | snd_gf1_i_write8(gus, 0x49, 0x00); | |
71 | } | |
72 | ||
73 | void 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 | ||
102 | static 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 | ||
114 | static 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 | ||
130 | void 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 | ||
144 | void 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 | ||
164 | void 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 | ||
205 | void 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 | ||
234 | static 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 | ||
257 | snd_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 | ||
291 | void 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 | ||
319 | int 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 | ||
402 | int 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 | } |