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authorJanusz Krzysztofik <jkrzyszt@tis.icnet.pl>2010-04-28 01:01:29 +0000
committerTony Lindgren <tony@atomide.com>2010-05-05 11:11:10 -0700
commit60c3bf3f1215453a4f30f0b91db7fd301d558693 (patch)
tree14d56bfb91cedb836481b3ab820012f11484235c /arch/arm/mach-omap1/Kconfig
parent1c4da2b737cce57f0c17344cda7f9ba1d206bfa5 (diff)
OMAP1: Amstrad Delta: add FIQ handler for serial keyboardport interrupt processing
This patch introduces a Fast Interrupt Request (FIQ) handler for Amstrad Delta (E3) videophone. The handler's purpose is to process interrupts generated by a GPIO line that a serial keyboard clock hangs off. It collects consecutive bits into words, pushing them into a buffer, then requests a higher level interrupt after one or more words are ready for further processing by a keyboard port driver. The handler also processes interrupts generated by two other GPIO lines, used by other on-board supported devices, by simply requesting a higher level interrupt, that in turn should invoke those device's specific irq handlers. IRQ12 line, not used by OMAP1510 hardware (described as reserved), has been choosen as a higher level interrupt source. Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap1/Kconfig')
-rw-r--r--arch/arm/mach-omap1/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 27f489747bb..b18d7c28ab7 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -152,6 +152,16 @@ config MACH_AMS_DELTA
Support for the Amstrad E3 (codename Delta) videophone. Say Y here
if you have such a device.
+config AMS_DELTA_FIQ
+ bool "Fast Interrupt Request (FIQ) support for the E3"
+ depends on MACH_AMS_DELTA
+ select FIQ
+ help
+ Provide a FIQ handler for the E3.
+ This allows for fast handling of interrupts generated
+ by the clock line of the E3 mailboard (or a PS/2 keyboard)
+ connected to the GPIO based external keyboard port.
+
config MACH_OMAP_GENERIC
bool "Generic OMAP board"
depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX)