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shared_irq: add config options for interrupt triggers

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This adds options to the shared IRQ driver so the interrupt
triggering condition can be specified.

For example, the GPIO and I2C controllers are under same
interrupt line through PCI bus. The triggering condition
is level, active-low. So this option can be used by
the Galileo platform to program the IO-APIC correctly.

Change-Id: I1c3af98442e775b4987ab36a644c856052d85ec4
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2015-09-30 09:54:26 -07:00 • committed by Anas Nashif
commit 006555a17b
1 changed files with 54 additions and 0 deletions
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54
drivers/shared_irq/Kconfig
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@ -41,6 +41,33 @@ config SHARED_IRQ_0_PRI
help
Prioity of shared interrupt handler for the configured interrupt
choice
depends on SHARED_IRQ_0
prompt "Shared IRQ #0 Trigger Condition"
default SHARED_IRQ_0_RISING_EDGE
config SHARED_IRQ_0_FALLING_EDGE
bool "Falling Edge"
help
Interrupt triggers on falling edge.
config SHARED_IRQ_0_RISING_EDGE
bool "Rising Edge"
help
Interrupt triggers on rising edge.
config SHARED_IRQ_0_LEVEL_HIGH
bool "Level High"
help
Interrupt triggers when level is high.
config SHARED_IRQ_0_LEVEL_LOW
bool "Level Low"
help
Interrupt triggers when level is low.
endchoice
config SHARED_IRQ_1
bool "Shared interrupt instance 1"
select SHARED_IRQ
@ -65,3 +92,30 @@ config SHARED_IRQ_1_PRI
depends on SHARED_IRQ_0
help
Prioity of shared interrupt handler for the configured interrupt
choice
depends on SHARED_IRQ_1
prompt "Shared IRQ #1 Trigger Condition"
default SHARED_IRQ_1_RISING_EDGE
config SHARED_IRQ_1_FALLING_EDGE
bool "Falling Edge"
help
Interrupt triggers on falling edge.
config SHARED_IRQ_1_RISING_EDGE
bool "Rising Edge"
help
Interrupt triggers on rising edge.
config SHARED_IRQ_1_LEVEL_HIGH
bool "Level High"
help
Interrupt triggers when level is high.
config SHARED_IRQ_1_LEVEL_LOW
bool "Level Low"
help
Interrupt triggers when level is low.
endchoice