mirror of
git://projects.qi-hardware.com/wernermisc.git
synced 2024-12-19 19:52:48 +02:00
74 lines
2.3 KiB
Diff
74 lines
2.3 KiB
Diff
Index: rtems/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c
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===================================================================
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--- rtems.orig/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c 2012-03-20 17:11:20.087160002 +0800
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+++ rtems/c/src/lib/libbsp/lm32/shared/milkymist_ac97/ac97.c 2012-03-20 17:12:23.731160001 +0800
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@@ -372,6 +372,39 @@
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return sc;
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}
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+static rtems_status_code ioctl_read_mic_boost(void *buf, unsigned int chan)
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+{
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+ unsigned int *val = (unsigned int *)buf;
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+ int codec;
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+
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+ codec = read_cr(chan);
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+ if (codec < 0)
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+ return RTEMS_UNSATISFIED;
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+
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+ *val = (codec & (1 << 6)) >> 6;
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+ return RTEMS_SUCCESSFUL;
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+}
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+
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+static rtems_status_code ioctl_write_mic_boost(void *buf, unsigned int chan)
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+{
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+ unsigned int *val = (unsigned int *)buf;
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+ int codec;
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+
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+ codec = read_cr(chan);
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+ if (codec < 0)
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+ return RTEMS_UNSATISFIED;
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+
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+ if (*val)
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+ codec |= (1 << 6);
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+ else
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+ codec &= ~(1 << 6);
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+
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+ if (!write_cr(chan, codec))
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+ return RTEMS_UNSATISFIED;
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+
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+ return RTEMS_SUCCESSFUL;
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+}
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+
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rtems_device_driver ac97_control(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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@@ -419,6 +452,16 @@
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if(sc == RTEMS_SUCCESSFUL)
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args->ioctl_return = 0;
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return sc;
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+ case SOUND_MIXER_READ(SOUND_MIXER_MIC_BOOST):
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+ sc = ioctl_read_mic_boost(args->buffer, 0x0e);
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+ if(sc == RTEMS_SUCCESSFUL)
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+ args->ioctl_return = 0;
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+ return sc;
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+ case SOUND_MIXER_WRITE(SOUND_MIXER_MIC_BOOST):
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+ sc = ioctl_write_mic_boost(args->buffer, 0x0e);
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+ if(sc == RTEMS_SUCCESSFUL)
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+ args->ioctl_return = 0;
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+ return sc;
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default:
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return RTEMS_UNSATISFIED;
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}
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Index: rtems/c/src/lib/libbsp/lm32/shared/milkymist_ac97/milkymist_ac97.h
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===================================================================
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--- rtems.orig/c/src/lib/libbsp/lm32/shared/milkymist_ac97/milkymist_ac97.h 2012-03-20 17:11:23.791160002 +0800
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+++ rtems/c/src/lib/libbsp/lm32/shared/milkymist_ac97/milkymist_ac97.h 2012-03-20 17:12:23.731160001 +0800
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@@ -21,6 +21,7 @@
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/* Ioctls. 0x41 is 'A' */
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#define SOUND_MIXER_MIC 0x0
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#define SOUND_MIXER_LINE 0x1
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+#define SOUND_MIXER_MIC_BOOST 0x2
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#define SOUND_MIXER_READ(x) (0x4100+x)
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#define SOUND_MIXER_WRITE(x) (0x4110+x)
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