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ACPI/IRQ: Add interrupt mode to IRQ connection

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Read flags (polarity/trigger) from MADT and add information to 'Irq_connection'
arguments.

Issue #390
This commit is contained in:
Sebastian Sumpf
2012-10-05 14:23:59 +02:00
committed by Norman Feske
parent 4a1b545770
commit ff0c7825e4
5 changed files with 63 additions and 14 deletions
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12
base/include/irq_session/connection.h
View File

@ -24,13 +24,17 @@ namespace Genode {
/**
* Constructor
*
* \param irq physical interrupt number
* \param irq physical interrupt number
* \param trigger interrupt trigger (e.g., level/edge)
* \param polarity interrupt trigger polarity (e.g., low/high)
*/
Irq_connection(unsigned irq)
Irq_connection(unsigned irq,
Irq_session::Trigger trigger = Irq_session::TRIGGER_UNCHANGED,
Irq_session::Polarity polarity = Irq_session::POLARITY_UNCHANGED)
:
Connection<Irq_session>(
session("ram_quota=4K, irq_number=%u", irq)),
session("ram_quota=4K, irq_number=%u, irq_trigger=%u, irq_polarity=%u",
irq, trigger, polarity)),
Irq_session_client(cap())
{ }
};

11
base/include/irq_session/irq_session.h
View File

@ -28,6 +28,17 @@ namespace Genode {
struct Irq_session : Session
{
/**
* Interrupt trigger
*/
enum Trigger { TRIGGER_UNCHANGED = 0, TRIGGER_LEVEL, TRIGGER_EDGE };
/**
* Interrupt trigger polarity
*/
enum Polarity { POLARITY_UNCHANGED = 0, POLARITY_HIGH, POLARITY_LOW };
static const char *service_name() { return "IRQ"; }
virtual ~Irq_session() { }