ALSA: emu10k1: handle dock disconnects
When the dock on an E-mu 1010 card is disconnected, all outputs get
muted by the hardware. Add logic to detect a disconnect and unmute.
Signed-off-by: Michael Gernoth <michael@gernoth.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 48872990..54079f5 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -707,6 +707,7 @@
{
struct snd_emu10k1 *emu = data;
u32 tmp, tmp2, reg;
+ u32 last_reg = 0;
int err;
for (;;) {
@@ -782,7 +783,15 @@
msleep(10);
/* Unmute all. Default is muted after a firmware load */
snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
+ } else if (!reg && last_reg) {
+ /* Audio Dock removed */
+ dev_info(emu->card->dev,
+ "emu1010: Audio Dock detached\n");
+ /* Unmute all */
+ snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
}
+
+ last_reg = reg;
}
dev_info(emu->card->dev, "emu1010: firmware thread stopping\n");
return 0;