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[MIPS] IP22: Add platform device for Indy volume buttons 

Create platform device for Indy volume buttons and remove button
handling from ip22-reset.c

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Thomas Bogendoerfer 2008-07-11 23:03:03 +02:00 committed by Ralf Baechle
parent efff4ae259
commit b03d7b18fd
2 changed files with 13 additions and 49 deletions
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11
arch/mips/sgi-ip22/ip22-platform.c
View File

@ -182,3 +182,14 @@ static int __init sgi_hal2_devinit(void)
}
device_initcall(sgi_hal2_devinit);
static int __init sgi_button_devinit(void)
{
if (ip22_is_fullhouse())
return 0; /* full house has no volume buttons */
return IS_ERR(platform_device_register_simple("sgiindybtns",
-1, NULL, 0));
}
device_initcall(sgi_button_devinit);

51
arch/mips/sgi-ip22/ip22-reset.c
View File

@ -39,7 +39,7 @@
#define POWERDOWN_FREQ (HZ / 4)
#define PANIC_FREQ (HZ / 8)
static struct timer_list power_timer, blink_timer, debounce_timer, volume_timer;
static struct timer_list power_timer, blink_timer, debounce_timer;
#define MACHINE_PANICED 1
#define MACHINE_SHUTTING_DOWN 2
@ -139,36 +139,6 @@ static inline void power_button(void)
add_timer(&power_timer);
}
void (*indy_volume_button)(int) = NULL;
EXPORT_SYMBOL(indy_volume_button);
static inline void volume_up_button(unsigned long data)
{
del_timer(&volume_timer);
if (indy_volume_button)
indy_volume_button(1);
if (sgint->istat1 & SGINT_ISTAT1_PWR) {
volume_timer.expires = jiffies + (HZ / 100);
add_timer(&volume_timer);
}
}
static inline void volume_down_button(unsigned long data)
{
del_timer(&volume_timer);
if (indy_volume_button)
indy_volume_button(-1);
if (sgint->istat1 & SGINT_ISTAT1_PWR) {
volume_timer.expires = jiffies + (HZ / 100);
add_timer(&volume_timer);
}
}
static irqreturn_t panel_int(int irq, void *dev_id)
{
unsigned int buttons;
@ -190,25 +160,8 @@ static irqreturn_t panel_int(int irq, void *dev_id)
* House. Only lowest 2 bits are used. Guiness uses upper four bits
* for volume control". This is not true, all bits are pulled high
* on fullhouse */
if (ip22_is_fullhouse() || !(buttons & SGIOC_PANEL_POWERINTR)) {
if (!(buttons & SGIOC_PANEL_POWERINTR))
power_button();
return IRQ_HANDLED;
}
/* TODO: mute/unmute */
/* Volume up button was pressed */
if (!(buttons & SGIOC_PANEL_VOLUPINTR)) {
init_timer(&volume_timer);
volume_timer.function = volume_up_button;
volume_timer.expires = jiffies + (HZ / 100);
add_timer(&volume_timer);
}
/* Volume down button was pressed */
if (!(buttons & SGIOC_PANEL_VOLDNINTR)) {
init_timer(&volume_timer);
volume_timer.function = volume_down_button;
volume_timer.expires = jiffies + (HZ / 100);
add_timer(&volume_timer);
}
return IRQ_HANDLED;
}