ddekit_pci_irq_enable now translates the PCI interrupt line IRQ into the GSI
---
libddekit/Makefile | 2 +-
libddekit/pci.c | 40 +++++++++++++++++++++++++++++++++++++++-
2 files changed, 40 insertions(+), 2 deletions(-)
diff --git a/libddekit/Makefile b/libddekit/Makefile
index c74ec1128..f31733c21 100644
--- a/libddekit/Makefile
+++ b/libddekit/Makefile
@@ -21,7 +21,7 @@ makemode := library
libname = libddekit
SRCS= condvar.c init.c interrupt.c lock.c malloc.c memory.c \
pci.c pgtab.c printf.c resources.c list.c panic.c \
- thread.c timer.c initcall.c
+ thread.c timer.c initcall.c acpiUser.c
installhdrs = ddekit/condvar.h ddekit/lock.h \
ddekit/semaphore.h ddekit/debug.h \
ddekit/inline.h ddekit/panic.h \
diff --git a/libddekit/pci.c b/libddekit/pci.c
index ca16b6f9a..6655787e6 100644
--- a/libddekit/pci.c
+++ b/libddekit/pci.c
@@ -8,6 +8,10 @@
#include "ddekit/pci.h"
#include "config.h"
+#include <hurd.h>
+#include <device/device.h>
+#include "acpi_U.h"
+
#define dbg_this 0
/** PCI descriptor */
@@ -399,7 +403,41 @@ void ddekit_pci_set_master(struct ddekit_pci_dev *dev)
//TODO l4io_pci_set_master(dev->l4dev.handle);
}
+static error_t
+find_gsi_from_acpi(int bus, int slot, int func, int *irq)
+{
+ mach_port_t devices, acpi;
+
+ error_t err = get_privileged_ports(NULL, &devices);
+ if (err)
+ return err;
+
+ if (devices == MACH_PORT_NULL)
+ return ENODEV;
+
+ err = device_open(devices, D_READ, "acpi", &acpi);
+ mach_port_deallocate(mach_task_self(), devices);
+ if (!err)
+ {
+ err = acpi_get_pci_irq(acpi, bus, slot, func, irq);
+ device_close(acpi);
+ }
+
+ return err;
+}
+
int ddekit_pci_irq_enable(int bus, int slot, int func, int pin, int *irq)
{
- return 0;
+ int gsi = -1;
+
+ if (find_gsi_from_acpi(bus, slot, func, &gsi))
+ {
+ ddekit_printf("Cannot find gsi for: %d:%d:%d\n", bus, slot, func);
+ }
+ else if (gsi >= 0)
+ {
+ *irq = gsi;
+ }
+
+ return 0;
}
--
2.39.5
