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authorAdrian Knoth <adi@drcomp.erfurt.thur.de>2013-01-15 18:52:21 +0100
committerTakashi Iwai <tiwai@suse.de>2013-01-16 07:48:51 +0100
commit66d9244ec72392c1cc906a41545e6669a97a2c8e (patch)
tree34aaf81c868dbc53cd83cd97bfbafdcd788c2669 /sound/pci/rme9652/hdsp.c
parent0c2bc7c7d8306bad0ec534852f1900140b80c956 (diff)
ALSA: hdsp - Implement generic function to toggle settings
The driver contains multiple similar functions that change only a single bit in the control register, only the bit position varies. This patch implements a generic function to toggle a certain bit position that will be used to replace the old 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/hdsp.c')
-rw-r--r--sound/pci/rme9652/hdsp.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 866d68461b83..4ebd283e56a3 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -1713,6 +1713,65 @@ static int snd_hdsp_put_spdif_in(struct snd_kcontrol *kcontrol, struct snd_ctl_e
return change;
}
+#define HDSP_TOGGLE_SETTING(xname, xindex) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+ .name = xname, \
+ .private_value = xindex, \
+ .info = snd_hdsp_info_toggle_setting, \
+ .get = snd_hdsp_get_toggle_setting, \
+ .put = snd_hdsp_put_toggle_setting \
+}
+
+static int hdsp_toggle_setting(struct hdsp *hdsp, u32 regmask)
+{
+ return (hdsp->control_register & regmask) ? 1 : 0;
+}
+
+static int hdsp_set_toggle_setting(struct hdsp *hdsp, u32 regmask, int out)
+{
+ if (out)
+ hdsp->control_register |= regmask;
+ else
+ hdsp->control_register &= ~regmask;
+ hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
+
+ return 0;
+}
+
+#define snd_hdsp_info_toggle_setting snd_ctl_boolean_mono_info
+
+static int snd_hdsp_get_toggle_setting(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
+ u32 regmask = kcontrol->private_value;
+
+ spin_lock_irq(&hdsp->lock);
+ ucontrol->value.integer.value[0] = hdsp_toggle_setting(hdsp, regmask);
+ spin_unlock_irq(&hdsp->lock);
+ return 0;
+}
+
+static int snd_hdsp_put_toggle_setting(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
+ u32 regmask = kcontrol->private_value;
+ int change;
+ unsigned int val;
+
+ if (!snd_hdsp_use_is_exclusive(hdsp))
+ return -EBUSY;
+ val = ucontrol->value.integer.value[0] & 1;
+ spin_lock_irq(&hdsp->lock);
+ change = (int) val != hdsp_toggle_setting(hdsp, regmask);
+ if (change)
+ hdsp_set_toggle_setting(hdsp, regmask, val);
+ spin_unlock_irq(&hdsp->lock);
+ return change;
+}
+
+
#define HDSP_SPDIF_OUT(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_hdsp_info_spdif_bits, \