From: Risto Suominen Risto.Suominen@gmail.com
Lineout (Pro Speaker) detection on PowerMac G4 Digital Audio (Tumbler).
Signed-off-by: Risto Suominen Risto.Suominen@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);