From 3f7bf918bfa2f4b8aa461ae82249e3c187bbff81 Mon Sep 17 00:00:00 2001 From: Adrian Knoth Date: Sun, 10 Mar 2013 00:37:21 +0100 Subject: [PATCH] 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 Signed-off-by: Takashi Iwai --- sound/pci/rme9652/hdspm.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 223c3d9cc69e..50cba5ce54fe 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. */ -- 2.30.2