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author | Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> | 2010-04-28 03:01:29 +0200 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-05-05 20:11:10 +0200 |
commit | 60c3bf3f1215453a4f30f0b91db7fd301d558693 (patch) | |
tree | 14d56bfb91cedb836481b3ab820012f11484235c /arch/arm/mach-omap1/Kconfig | |
parent | omap: add missing FIQ_START definition required forarch/arm/kernel/fiq.c comp... (diff) | |
download | linux-60c3bf3f1215453a4f30f0b91db7fd301d558693.tar.xz linux-60c3bf3f1215453a4f30f0b91db7fd301d558693.zip |
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/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig index 27f489747bbd..b18d7c28ab7a 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) |