[alsa-devel] [PATCH - powermac] Lineout detection on G4 DA
Risto Suominen
risto.suominen at gmail.com
Sun Apr 4 07:00:00 CEST 2010
From: Risto Suominen <Risto.Suominen at gmail.com>
Lineout (Pro Speaker) detection on PowerMac G4 Digital Audio (Tumbler).
Signed-off-by: Risto Suominen <Risto.Suominen at gmail.com>
---
Kernel version 2.6.32.9 (probably any 2.6), ALSA 1.0.22.1.
The patch is available here, too:
http://ristosu.wippiespace.com/pub/alsa-tumbler-1.0.22.1-p16.diff
This has not been tested. Hopefully someone with that kind of machine
and those speakers can do it.
--- a/alsa-kernel/ppc/tumbler.c-p15 2010-03-16 19:59:01.000000000 +0200
+++ b/alsa-kernel/ppc/tumbler.c 2010-03-23 21:42:03.000000000 +0200
@@ -1137,7 +1141,8 @@ static long tumbler_find_device(const ch
gp->inactive_val = (*base) ? 0x4 : 0x5;
} else {
const u32 *prop = NULL;
- gp->active_state = IS_G4DA && !strcmp(device, "keywest-gpio15");
+ gp->active_state = IS_G4DA
+ && !strncmp(device, "keywest-gpio1", 13);
gp->active_val = 0x4;
gp->inactive_val = 0x5;
/* Here are some crude hacks to extract the GPIO polarity and
@@ -1315,6 +1320,9 @@ static int __devinit tumbler_init(struct
if (irq <= NO_IRQ)
irq = tumbler_find_device("line-output-detect",
NULL, &mix->line_detect, 1);
+ if (IS_G4DA && irq <= NO_IRQ)
+ irq = tumbler_find_device("keywest-gpio16",
+ NULL, &mix->line_detect, 1);
mix->lineout_irq = irq;
tumbler_reset_audio(chip);
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