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authorClemens Ladisch <clemens@ladisch.de>2010-01-18 09:40:56 -0500
committerJaroslav Kysela <perex@perex.cz>2010-01-18 10:38:30 -0500
commita32f66746c635ebf2341d99b3d4c0cc1c11b2cbf (patch)
tree3393a6d953af90a9b931058b4f180e5b32f40577 /sound/core/seq
parented69c6a8eef679f2783848ed624897a937a434ac (diff)
sound: seq_timer: simplify snd_seq_timer_set_tick_resolution() parameters
As snd_seq_timer_set_tick_resolution() is always called with the same three fields of struct snd_seq_timer, it suffices to give that as the only parameter. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/core/seq')
-rw-r--r--sound/core/seq/seq_timer.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/sound/core/seq/seq_timer.c b/sound/core/seq/seq_timer.c
index f745c317d6af..160b1bd0cd62 100644
--- a/sound/core/seq/seq_timer.c
+++ b/sound/core/seq/seq_timer.c
@@ -33,22 +33,21 @@
33 33
34#define SKEW_BASE 0x10000 /* 16bit shift */ 34#define SKEW_BASE 0x10000 /* 16bit shift */
35 35
36static void snd_seq_timer_set_tick_resolution(struct snd_seq_timer_tick *tick, 36static void snd_seq_timer_set_tick_resolution(struct snd_seq_timer *tmr)
37 int tempo, int ppq)
38{ 37{
39 if (tempo < 1000000) 38 if (tmr->tempo < 1000000)
40 tick->resolution = (tempo * 1000) / ppq; 39 tmr->tick.resolution = (tmr->tempo * 1000) / tmr->ppq;
41 else { 40 else {
42 /* might overflow.. */ 41 /* might overflow.. */
43 unsigned int s; 42 unsigned int s;
44 s = tempo % ppq; 43 s = tmr->tempo % tmr->ppq;
45 s = (s * 1000) / ppq; 44 s = (s * 1000) / tmr->ppq;
46 tick->resolution = (tempo / ppq) * 1000; 45 tmr->tick.resolution = (tmr->tempo / tmr->ppq) * 1000;
47 tick->resolution += s; 46 tmr->tick.resolution += s;
48 } 47 }
49 if (tick->resolution <= 0) 48 if (tmr->tick.resolution <= 0)
50 tick->resolution = 1; 49 tmr->tick.resolution = 1;
51 snd_seq_timer_update_tick(tick, 0); 50 snd_seq_timer_update_tick(&tmr->tick, 0);
52} 51}
53 52
54/* create new timer (constructor) */ 53/* create new timer (constructor) */
@@ -96,7 +95,7 @@ void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
96 /* setup defaults */ 95 /* setup defaults */
97 tmr->ppq = 96; /* 96 PPQ */ 96 tmr->ppq = 96; /* 96 PPQ */
98 tmr->tempo = 500000; /* 120 BPM */ 97 tmr->tempo = 500000; /* 120 BPM */
99 snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq); 98 snd_seq_timer_set_tick_resolution(tmr);
100 tmr->running = 0; 99 tmr->running = 0;
101 100
102 tmr->type = SNDRV_SEQ_TIMER_ALSA; 101 tmr->type = SNDRV_SEQ_TIMER_ALSA;
@@ -180,7 +179,7 @@ int snd_seq_timer_set_tempo(struct snd_seq_timer * tmr, int tempo)
180 spin_lock_irqsave(&tmr->lock, flags); 179 spin_lock_irqsave(&tmr->lock, flags);
181 if ((unsigned int)tempo != tmr->tempo) { 180 if ((unsigned int)tempo != tmr->tempo) {
182 tmr->tempo = tempo; 181 tmr->tempo = tempo;
183 snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq); 182 snd_seq_timer_set_tick_resolution(tmr);
184 } 183 }
185 spin_unlock_irqrestore(&tmr->lock, flags); 184 spin_unlock_irqrestore(&tmr->lock, flags);
186 return 0; 185 return 0;
@@ -205,7 +204,7 @@ int snd_seq_timer_set_ppq(struct snd_seq_timer * tmr, int ppq)
205 } 204 }
206 205
207 tmr->ppq = ppq; 206 tmr->ppq = ppq;
208 snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq); 207 snd_seq_timer_set_tick_resolution(tmr);
209 spin_unlock_irqrestore(&tmr->lock, flags); 208 spin_unlock_irqrestore(&tmr->lock, flags);
210 return 0; 209 return 0;
211} 210}