[Qemu-devel] [PATCH 3/4] ich9: add notifer for ec to generate sci

[liguang]

Signed-off-by: liguang <address@hidden>
---
 hw/acpi/ich9.c         |   15 +++++++++++++++
 include/hw/acpi/ich9.h |    1 +
 2 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 582dbec..2ecde32 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -33,6 +33,7 @@
 #include "exec/address-spaces.h"
 
 #include "hw/i386/ich9.h"
+#include "hw/acpi/ec.h"
 
 //#define DEBUG
 
@@ -43,6 +44,8 @@ do { printf("%s "fmt, __func__, ## __VA_ARGS__); } while (0)
 #define ICH9_DEBUG(fmt, ...)    do { } while (0)
 #endif
 
+#define GPE_EC_SCI_STATUS (0x1 << (16 + 1))
+
 static void pm_update_sci(ICH9LPCPMRegs *pm)
 {
     int sci_level, pm1a_sts;
@@ -202,6 +205,15 @@ static void pm_powerdown_req(Notifier *n, void *opaque)
     acpi_pm1_evt_power_down(&pm->acpi_regs);
 }
 
+static void pm_ec_sci_req(Notifier *n, void *opaque)
+{
+    ICH9LPCPMRegs *pm = container_of(n, ICH9LPCPMRegs, ec_sci_notifier);
+    ACPIGPE *gpe = &pm->acpi_regs.gpe;
+
+    *gpe->sts |= GPE_EC_SCI_STATUS;
+    pm_update_sci(pm);
+}
+
 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
                   qemu_irq sci_irq)
 {
@@ -227,4 +239,7 @@ void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
     qemu_register_reset(pm_reset, pm);
     pm->powerdown_notifier.notify = pm_powerdown_req;
     qemu_register_powerdown_notifier(&pm->powerdown_notifier);
+
+    pm->ec_sci_notifier.notify = pm_ec_sci_req;
+    qemu_register_ec_sci_notifier(&pm->ec_sci_notifier);
 }
diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
index b1fe71f..f358deb 100644
--- a/include/hw/acpi/ich9.h
+++ b/include/hw/acpi/ich9.h
@@ -42,6 +42,7 @@ typedef struct ICH9LPCPMRegs {
 
     uint32_t pm_io_base;
     Notifier powerdown_notifier;
+    Notifier ec_sci_notifier;
 } ICH9LPCPMRegs;
 
 void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm,
-- 
1.7.2.5