Lines Matching refs:rec
182 static inline int emu8k_get_curpos(struct snd_emu8k_pcm *rec, int ch) in emu8k_get_curpos() argument
184 int val = EMU8000_CCCA_READ(rec->emu, ch) & 0xfffffff; in emu8k_get_curpos()
185 val -= rec->loop_start[ch] - 1; in emu8k_get_curpos()
196 struct snd_emu8k_pcm *rec = (struct snd_emu8k_pcm *)data; in emu8k_pcm_timer_func() local
199 spin_lock(&rec->timer_lock); in emu8k_pcm_timer_func()
201 ptr = emu8k_get_curpos(rec, 0); in emu8k_pcm_timer_func()
202 if (ptr < rec->last_ptr) in emu8k_pcm_timer_func()
203 delta = ptr + rec->buf_size - rec->last_ptr; in emu8k_pcm_timer_func()
205 delta = ptr - rec->last_ptr; in emu8k_pcm_timer_func()
206 rec->period_pos += delta; in emu8k_pcm_timer_func()
207 rec->last_ptr = ptr; in emu8k_pcm_timer_func()
210 mod_timer(&rec->timer, jiffies + 1); in emu8k_pcm_timer_func()
213 if (rec->period_pos >= (int)rec->period_size) { in emu8k_pcm_timer_func()
214 rec->period_pos %= rec->period_size; in emu8k_pcm_timer_func()
215 spin_unlock(&rec->timer_lock); in emu8k_pcm_timer_func()
216 snd_pcm_period_elapsed(rec->substream); in emu8k_pcm_timer_func()
219 spin_unlock(&rec->timer_lock); in emu8k_pcm_timer_func()
230 struct snd_emu8k_pcm *rec; in emu8k_pcm_open() local
233 rec = kzalloc(sizeof(*rec), GFP_KERNEL); in emu8k_pcm_open()
234 if (! rec) in emu8k_pcm_open()
237 rec->emu = emu; in emu8k_pcm_open()
238 rec->substream = subs; in emu8k_pcm_open()
239 runtime->private_data = rec; in emu8k_pcm_open()
241 spin_lock_init(&rec->timer_lock); in emu8k_pcm_open()
242 setup_timer(&rec->timer, emu8k_pcm_timer_func, (unsigned long)rec); in emu8k_pcm_open()
257 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_close() local
258 kfree(rec); in emu8k_pcm_close()
280 static void setup_voice(struct snd_emu8k_pcm *rec, int ch) in setup_voice() argument
282 struct snd_emu8000 *hw = rec->emu; in setup_voice()
293 EMU8000_IP_WRITE(hw, ch, rec->pitch); in setup_voice()
314 temp = rec->panning[ch]; in setup_voice()
315 temp = (temp <<24) | ((unsigned int)rec->loop_start[ch] - 1); in setup_voice()
319 temp = (temp << 24) | ((unsigned int)rec->loop_start[ch] + rec->buf_size - 1); in setup_voice()
323 temp = (temp << 28) | ((unsigned int)rec->loop_start[ch] - 1); in setup_voice()
333 static void start_voice(struct snd_emu8k_pcm *rec, int ch) in start_voice() argument
336 struct snd_emu8000 *hw = rec->emu; in start_voice()
338 int pt = calc_pitch_target(rec->pitch); in start_voice()
348 if (rec->panning[ch] == 0) in start_voice()
351 aux = (-rec->panning[ch]) & 0xff; in start_voice()
357 spin_lock_irqsave(&rec->timer_lock, flags); in start_voice()
358 if (! rec->timer_running) { in start_voice()
359 mod_timer(&rec->timer, jiffies + 1); in start_voice()
360 rec->timer_running = 1; in start_voice()
362 spin_unlock_irqrestore(&rec->timer_lock, flags); in start_voice()
368 static void stop_voice(struct snd_emu8k_pcm *rec, int ch) in stop_voice() argument
371 struct snd_emu8000 *hw = rec->emu; in stop_voice()
376 spin_lock_irqsave(&rec->timer_lock, flags); in stop_voice()
377 if (rec->timer_running) { in stop_voice()
378 del_timer(&rec->timer); in stop_voice()
379 rec->timer_running = 0; in stop_voice()
381 spin_unlock_irqrestore(&rec->timer_lock, flags); in stop_voice()
386 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_trigger() local
391 for (ch = 0; ch < rec->voices; ch++) in emu8k_pcm_trigger()
392 start_voice(rec, ch); in emu8k_pcm_trigger()
393 rec->running = 1; in emu8k_pcm_trigger()
396 rec->running = 0; in emu8k_pcm_trigger()
397 for (ch = 0; ch < rec->voices; ch++) in emu8k_pcm_trigger()
398 stop_voice(rec, ch); in emu8k_pcm_trigger()
447 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_copy() local
448 struct snd_emu8000 *emu = rec->emu; in emu8k_pcm_copy()
454 count /= rec->voices; in emu8k_pcm_copy()
455 for (i = 0; i < rec->voices; i++) { in emu8k_pcm_copy()
456 err = emu8k_transfer_block(emu, pos + rec->loop_start[i], buf, count); in emu8k_pcm_copy()
463 return emu8k_transfer_block(emu, pos + rec->loop_start[voice], src, count); in emu8k_pcm_copy()
484 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_silence() local
485 struct snd_emu8000 *emu = rec->emu; in emu8k_pcm_silence()
488 if (voice == -1 && rec->voices == 1) in emu8k_pcm_silence()
492 err = emu8k_silence_block(emu, pos + rec->loop_start[0], count / 2); in emu8k_pcm_silence()
495 return emu8k_silence_block(emu, pos + rec->loop_start[1], count / 2); in emu8k_pcm_silence()
497 return emu8k_silence_block(emu, pos + rec->loop_start[voice], count); in emu8k_pcm_silence()
513 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_copy() local
514 struct snd_emu8000 *emu = rec->emu; in emu8k_pcm_copy()
518 EMU8000_SMALW_WRITE(emu, pos + rec->loop_start[0]); in emu8k_pcm_copy()
519 if (rec->voices > 1) in emu8k_pcm_copy()
520 EMU8000_SMARW_WRITE(emu, pos + rec->loop_start[1]); in emu8k_pcm_copy()
529 if (rec->voices > 1) { in emu8k_pcm_copy()
545 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_silence() local
546 struct snd_emu8000 *emu = rec->emu; in emu8k_pcm_silence()
549 EMU8000_SMALW_WRITE(emu, rec->loop_start[0] + pos); in emu8k_pcm_silence()
550 if (rec->voices > 1) in emu8k_pcm_silence()
551 EMU8000_SMARW_WRITE(emu, rec->loop_start[1] + pos); in emu8k_pcm_silence()
555 if (rec->voices > 1) { in emu8k_pcm_silence()
571 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_hw_params() local
573 if (rec->block) { in emu8k_pcm_hw_params()
575 snd_util_mem_free(rec->emu->memhdr, rec->block); in emu8k_pcm_hw_params()
576 rec->block = NULL; in emu8k_pcm_hw_params()
579 rec->allocated_bytes = params_buffer_bytes(hw_params) + LOOP_BLANK_SIZE * 4; in emu8k_pcm_hw_params()
580 rec->block = snd_util_mem_alloc(rec->emu->memhdr, rec->allocated_bytes); in emu8k_pcm_hw_params()
581 if (! rec->block) in emu8k_pcm_hw_params()
583 rec->offset = EMU8000_DRAM_OFFSET + (rec->block->offset >> 1); /* in word */ in emu8k_pcm_hw_params()
595 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_hw_free() local
597 if (rec->block) { in emu8k_pcm_hw_free()
599 for (ch = 0; ch < rec->voices; ch++) in emu8k_pcm_hw_free()
600 stop_voice(rec, ch); // to be sure in emu8k_pcm_hw_free()
601 if (rec->dram_opened) in emu8k_pcm_hw_free()
602 emu8k_close_dram(rec->emu); in emu8k_pcm_hw_free()
603 snd_util_mem_free(rec->emu->memhdr, rec->block); in emu8k_pcm_hw_free()
604 rec->block = NULL; in emu8k_pcm_hw_free()
613 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_prepare() local
615 rec->pitch = 0xe000 + calc_rate_offset(subs->runtime->rate); in emu8k_pcm_prepare()
616 rec->last_ptr = 0; in emu8k_pcm_prepare()
617 rec->period_pos = 0; in emu8k_pcm_prepare()
619 rec->buf_size = subs->runtime->buffer_size; in emu8k_pcm_prepare()
620 rec->period_size = subs->runtime->period_size; in emu8k_pcm_prepare()
621 rec->voices = subs->runtime->channels; in emu8k_pcm_prepare()
622 rec->loop_start[0] = rec->offset + LOOP_BLANK_SIZE; in emu8k_pcm_prepare()
623 if (rec->voices > 1) in emu8k_pcm_prepare()
624 rec->loop_start[1] = rec->loop_start[0] + rec->buf_size + LOOP_BLANK_SIZE; in emu8k_pcm_prepare()
625 if (rec->voices > 1) { in emu8k_pcm_prepare()
626 rec->panning[0] = 0xff; in emu8k_pcm_prepare()
627 rec->panning[1] = 0x00; in emu8k_pcm_prepare()
629 rec->panning[0] = 0x80; in emu8k_pcm_prepare()
631 if (! rec->dram_opened) { in emu8k_pcm_prepare()
634 snd_emux_terminate_all(rec->emu->emu); in emu8k_pcm_prepare()
635 if ((err = emu8k_open_dram_for_pcm(rec->emu, rec->voices)) != 0) in emu8k_pcm_prepare()
637 rec->dram_opened = 1; in emu8k_pcm_prepare()
640 snd_emu8000_write_wait(rec->emu, 0); in emu8k_pcm_prepare()
641 EMU8000_SMALW_WRITE(rec->emu, rec->offset); in emu8k_pcm_prepare()
643 EMU8000_SMLD_WRITE(rec->emu, 0); in emu8k_pcm_prepare()
644 for (ch = 0; ch < rec->voices; ch++) { in emu8k_pcm_prepare()
645 EMU8000_SMALW_WRITE(rec->emu, rec->loop_start[ch] + rec->buf_size); in emu8k_pcm_prepare()
647 EMU8000_SMLD_WRITE(rec->emu, 0); in emu8k_pcm_prepare()
651 setup_voice(rec, 0); in emu8k_pcm_prepare()
652 if (rec->voices > 1) in emu8k_pcm_prepare()
653 setup_voice(rec, 1); in emu8k_pcm_prepare()
659 struct snd_emu8k_pcm *rec = subs->runtime->private_data; in emu8k_pcm_pointer() local
660 if (rec->running) in emu8k_pcm_pointer()
661 return emu8k_get_curpos(rec, 0); in emu8k_pcm_pointer()