Lines Matching refs:tmr
36 static void snd_seq_timer_set_tick_resolution(struct snd_seq_timer *tmr) in snd_seq_timer_set_tick_resolution() argument
38 if (tmr->tempo < 1000000) in snd_seq_timer_set_tick_resolution()
39 tmr->tick.resolution = (tmr->tempo * 1000) / tmr->ppq; in snd_seq_timer_set_tick_resolution()
43 s = tmr->tempo % tmr->ppq; in snd_seq_timer_set_tick_resolution()
44 s = (s * 1000) / tmr->ppq; in snd_seq_timer_set_tick_resolution()
45 tmr->tick.resolution = (tmr->tempo / tmr->ppq) * 1000; in snd_seq_timer_set_tick_resolution()
46 tmr->tick.resolution += s; in snd_seq_timer_set_tick_resolution()
48 if (tmr->tick.resolution <= 0) in snd_seq_timer_set_tick_resolution()
49 tmr->tick.resolution = 1; in snd_seq_timer_set_tick_resolution()
50 snd_seq_timer_update_tick(&tmr->tick, 0); in snd_seq_timer_set_tick_resolution()
56 struct snd_seq_timer *tmr; in snd_seq_timer_new() local
58 tmr = kzalloc(sizeof(*tmr), GFP_KERNEL); in snd_seq_timer_new()
59 if (tmr == NULL) { in snd_seq_timer_new()
63 spin_lock_init(&tmr->lock); in snd_seq_timer_new()
66 snd_seq_timer_defaults(tmr); in snd_seq_timer_new()
69 snd_seq_timer_reset(tmr); in snd_seq_timer_new()
71 return tmr; in snd_seq_timer_new()
75 void snd_seq_timer_delete(struct snd_seq_timer **tmr) in snd_seq_timer_delete() argument
77 struct snd_seq_timer *t = *tmr; in snd_seq_timer_delete()
78 *tmr = NULL; in snd_seq_timer_delete()
93 void snd_seq_timer_defaults(struct snd_seq_timer * tmr) in snd_seq_timer_defaults() argument
96 tmr->ppq = 96; /* 96 PPQ */ in snd_seq_timer_defaults()
97 tmr->tempo = 500000; /* 120 BPM */ in snd_seq_timer_defaults()
98 snd_seq_timer_set_tick_resolution(tmr); in snd_seq_timer_defaults()
99 tmr->running = 0; in snd_seq_timer_defaults()
101 tmr->type = SNDRV_SEQ_TIMER_ALSA; in snd_seq_timer_defaults()
102 tmr->alsa_id.dev_class = seq_default_timer_class; in snd_seq_timer_defaults()
103 tmr->alsa_id.dev_sclass = seq_default_timer_sclass; in snd_seq_timer_defaults()
104 tmr->alsa_id.card = seq_default_timer_card; in snd_seq_timer_defaults()
105 tmr->alsa_id.device = seq_default_timer_device; in snd_seq_timer_defaults()
106 tmr->alsa_id.subdevice = seq_default_timer_subdevice; in snd_seq_timer_defaults()
107 tmr->preferred_resolution = seq_default_timer_resolution; in snd_seq_timer_defaults()
109 tmr->skew = tmr->skew_base = SKEW_BASE; in snd_seq_timer_defaults()
112 void snd_seq_timer_reset(struct snd_seq_timer * tmr) in snd_seq_timer_reset() argument
116 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_reset()
119 tmr->cur_time.tv_sec = 0; in snd_seq_timer_reset()
120 tmr->cur_time.tv_nsec = 0; in snd_seq_timer_reset()
122 tmr->tick.cur_tick = 0; in snd_seq_timer_reset()
123 tmr->tick.fraction = 0; in snd_seq_timer_reset()
125 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_reset()
136 struct snd_seq_timer *tmr; in snd_seq_timer_interrupt() local
140 tmr = q->timer; in snd_seq_timer_interrupt()
141 if (tmr == NULL) in snd_seq_timer_interrupt()
143 if (!tmr->running) in snd_seq_timer_interrupt()
147 if (tmr->skew != tmr->skew_base) { in snd_seq_timer_interrupt()
149 resolution = (resolution >> 16) * tmr->skew + in snd_seq_timer_interrupt()
150 (((resolution & 0xffff) * tmr->skew) >> 16); in snd_seq_timer_interrupt()
153 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_interrupt()
156 snd_seq_inc_time_nsec(&tmr->cur_time, resolution); in snd_seq_timer_interrupt()
159 snd_seq_timer_update_tick(&tmr->tick, resolution); in snd_seq_timer_interrupt()
162 do_gettimeofday(&tmr->last_update); in snd_seq_timer_interrupt()
164 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_interrupt()
171 int snd_seq_timer_set_tempo(struct snd_seq_timer * tmr, int tempo) in snd_seq_timer_set_tempo() argument
175 if (snd_BUG_ON(!tmr)) in snd_seq_timer_set_tempo()
179 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_set_tempo()
180 if ((unsigned int)tempo != tmr->tempo) { in snd_seq_timer_set_tempo()
181 tmr->tempo = tempo; in snd_seq_timer_set_tempo()
182 snd_seq_timer_set_tick_resolution(tmr); in snd_seq_timer_set_tempo()
184 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_tempo()
189 int snd_seq_timer_set_ppq(struct snd_seq_timer * tmr, int ppq) in snd_seq_timer_set_ppq() argument
193 if (snd_BUG_ON(!tmr)) in snd_seq_timer_set_ppq()
197 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_set_ppq()
198 if (tmr->running && (ppq != tmr->ppq)) { in snd_seq_timer_set_ppq()
201 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_ppq()
206 tmr->ppq = ppq; in snd_seq_timer_set_ppq()
207 snd_seq_timer_set_tick_resolution(tmr); in snd_seq_timer_set_ppq()
208 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_ppq()
213 int snd_seq_timer_set_position_tick(struct snd_seq_timer *tmr, in snd_seq_timer_set_position_tick() argument
218 if (snd_BUG_ON(!tmr)) in snd_seq_timer_set_position_tick()
221 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_set_position_tick()
222 tmr->tick.cur_tick = position; in snd_seq_timer_set_position_tick()
223 tmr->tick.fraction = 0; in snd_seq_timer_set_position_tick()
224 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_position_tick()
229 int snd_seq_timer_set_position_time(struct snd_seq_timer *tmr, in snd_seq_timer_set_position_time() argument
234 if (snd_BUG_ON(!tmr)) in snd_seq_timer_set_position_time()
238 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_set_position_time()
239 tmr->cur_time = position; in snd_seq_timer_set_position_time()
240 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_position_time()
245 int snd_seq_timer_set_skew(struct snd_seq_timer *tmr, unsigned int skew, in snd_seq_timer_set_skew() argument
250 if (snd_BUG_ON(!tmr)) in snd_seq_timer_set_skew()
258 spin_lock_irqsave(&tmr->lock, flags); in snd_seq_timer_set_skew()
259 tmr->skew = skew; in snd_seq_timer_set_skew()
260 spin_unlock_irqrestore(&tmr->lock, flags); in snd_seq_timer_set_skew()
267 struct snd_seq_timer *tmr; in snd_seq_timer_open() local
271 tmr = q->timer; in snd_seq_timer_open()
272 if (snd_BUG_ON(!tmr)) in snd_seq_timer_open()
274 if (tmr->timeri) in snd_seq_timer_open()
277 if (tmr->type != SNDRV_SEQ_TIMER_ALSA) /* standard ALSA timer */ in snd_seq_timer_open()
279 if (tmr->alsa_id.dev_class != SNDRV_TIMER_CLASS_SLAVE) in snd_seq_timer_open()
280 tmr->alsa_id.dev_sclass = SNDRV_TIMER_SCLASS_SEQUENCER; in snd_seq_timer_open()
281 err = snd_timer_open(&t, str, &tmr->alsa_id, q->queue); in snd_seq_timer_open()
282 if (err < 0 && tmr->alsa_id.dev_class != SNDRV_TIMER_CLASS_SLAVE) { in snd_seq_timer_open()
283 if (tmr->alsa_id.dev_class != SNDRV_TIMER_CLASS_GLOBAL || in snd_seq_timer_open()
284 tmr->alsa_id.device != SNDRV_TIMER_GLOBAL_SYSTEM) { in snd_seq_timer_open()
301 tmr->timeri = t; in snd_seq_timer_open()
307 struct snd_seq_timer *tmr; in snd_seq_timer_close() local
309 tmr = q->timer; in snd_seq_timer_close()
310 if (snd_BUG_ON(!tmr)) in snd_seq_timer_close()
312 if (tmr->timeri) { in snd_seq_timer_close()
313 snd_timer_stop(tmr->timeri); in snd_seq_timer_close()
314 snd_timer_close(tmr->timeri); in snd_seq_timer_close()
315 tmr->timeri = NULL; in snd_seq_timer_close()
320 int snd_seq_timer_stop(struct snd_seq_timer * tmr) in snd_seq_timer_stop() argument
322 if (! tmr->timeri) in snd_seq_timer_stop()
324 if (!tmr->running) in snd_seq_timer_stop()
326 tmr->running = 0; in snd_seq_timer_stop()
327 snd_timer_pause(tmr->timeri); in snd_seq_timer_stop()
331 static int initialize_timer(struct snd_seq_timer *tmr) in initialize_timer() argument
336 t = tmr->timeri->timer; in initialize_timer()
340 freq = tmr->preferred_resolution; in initialize_timer()
348 tmr->ticks = 1; in initialize_timer()
354 tmr->ticks = (unsigned int)(1000000000uL / (r * freq)); in initialize_timer()
355 if (! tmr->ticks) in initialize_timer()
356 tmr->ticks = 1; in initialize_timer()
359 tmr->initialized = 1; in initialize_timer()
363 int snd_seq_timer_start(struct snd_seq_timer * tmr) in snd_seq_timer_start() argument
365 if (! tmr->timeri) in snd_seq_timer_start()
367 if (tmr->running) in snd_seq_timer_start()
368 snd_seq_timer_stop(tmr); in snd_seq_timer_start()
369 snd_seq_timer_reset(tmr); in snd_seq_timer_start()
370 if (initialize_timer(tmr) < 0) in snd_seq_timer_start()
372 snd_timer_start(tmr->timeri, tmr->ticks); in snd_seq_timer_start()
373 tmr->running = 1; in snd_seq_timer_start()
374 do_gettimeofday(&tmr->last_update); in snd_seq_timer_start()
378 int snd_seq_timer_continue(struct snd_seq_timer * tmr) in snd_seq_timer_continue() argument
380 if (! tmr->timeri) in snd_seq_timer_continue()
382 if (tmr->running) in snd_seq_timer_continue()
384 if (! tmr->initialized) { in snd_seq_timer_continue()
385 snd_seq_timer_reset(tmr); in snd_seq_timer_continue()
386 if (initialize_timer(tmr) < 0) in snd_seq_timer_continue()
389 snd_timer_start(tmr->timeri, tmr->ticks); in snd_seq_timer_continue()
390 tmr->running = 1; in snd_seq_timer_continue()
391 do_gettimeofday(&tmr->last_update); in snd_seq_timer_continue()
396 snd_seq_real_time_t snd_seq_timer_get_cur_time(struct snd_seq_timer *tmr) in snd_seq_timer_get_cur_time() argument
400 cur_time = tmr->cur_time; in snd_seq_timer_get_cur_time()
401 if (tmr->running) { in snd_seq_timer_get_cur_time()
405 usec = (int)(tm.tv_usec - tmr->last_update.tv_usec); in snd_seq_timer_get_cur_time()
408 cur_time.tv_sec += tm.tv_sec - tmr->last_update.tv_sec - 1; in snd_seq_timer_get_cur_time()
411 cur_time.tv_sec += tm.tv_sec - tmr->last_update.tv_sec; in snd_seq_timer_get_cur_time()
421 snd_seq_tick_time_t snd_seq_timer_get_cur_tick(struct snd_seq_timer *tmr) in snd_seq_timer_get_cur_tick() argument
423 return tmr->tick.cur_tick; in snd_seq_timer_get_cur_tick()
434 struct snd_seq_timer *tmr; in snd_seq_info_timer_read() local
442 if ((tmr = q->timer) == NULL || in snd_seq_info_timer_read()
443 (ti = tmr->timeri) == NULL) { in snd_seq_info_timer_read()
448 resolution = snd_timer_resolution(ti) * tmr->ticks; in snd_seq_info_timer_read()
450 snd_iprintf(buffer, " Skew : %u / %u\n", tmr->skew, tmr->skew_base); in snd_seq_info_timer_read()