diff options
| author | Adrian Knoth <adi@drcomp.erfurt.thur.de> | 2013-03-10 00:37:21 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-03-11 09:57:22 +0100 |
| commit | 3f7bf918bfa2f4b8aa461ae82249e3c187bbff81 (patch) | |
| tree | 9dcbb2debec87560cdc5d11da2215e3ac58fb14d /sound/pci/rme9652 | |
| parent | 93c9d8ae0b25ab7845b26813da1a326d2b1fea43 (diff) | |
ALSA: hdspm - Refactor sample rate acquisition
This commit introduces hdspm_get_pll_freq() to avoid code duplication.
Reading the sample rate from the DDS register will be required by
upcoming code.
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/rme9652')
| -rw-r--r-- | sound/pci/rme9652/hdspm.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 223c3d9cc69..50cba5ce54f 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -969,6 +969,7 @@ static int snd_hdspm_create_pcm(struct snd_card *card, struct hdspm *hdspm); static inline void snd_hdspm_initialize_midi_flush(struct hdspm *hdspm); +static inline int hdspm_get_pll_freq(struct hdspm *hdspm); static int hdspm_update_simple_mixer_controls(struct hdspm *hdspm); static int hdspm_autosync_ref(struct hdspm *hdspm); static int snd_hdspm_set_defaults(struct hdspm *hdspm); @@ -1979,16 +1980,25 @@ static void hdspm_midi_tasklet(unsigned long arg) /* get the system sample rate which is set */ +static inline int hdspm_get_pll_freq(struct hdspm *hdspm) +{ + unsigned int period, rate; + + period = hdspm_read(hdspm, HDSPM_RD_PLL_FREQ); + rate = hdspm_calc_dds_value(hdspm, period); + + return rate; +} + /** * Calculate the real sample rate from the * current DDS value. **/ static int hdspm_get_system_sample_rate(struct hdspm *hdspm) { - unsigned int period, rate; + unsigned int rate; - period = hdspm_read(hdspm, HDSPM_RD_PLL_FREQ); - rate = hdspm_calc_dds_value(hdspm, period); + rate = hdspm_get_pll_freq(hdspm); if (rate > 207000) { /* Unreasonable high sample rate as seen on PCI MADI cards. */ |