pci: add set_powerstate and get_powerstate legacy hooks

Change-Id: I827112ffb1a65ada99605671b112d8fd0e6db4b5
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4976
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: waddlesplash <[email protected]>

headers/os/drivers/PCI.h

@@ -182,6 +182,9 @@ struct pci_module_info {
 						uint16	cap_id,
 						uint16	*offset
 					);
+
+	status_t		(*get_powerstate)(uint8 bus, uint8 device, uint8 function, uint8* state);
+	status_t		(*set_powerstate)(uint8 bus, uint8 device, uint8 function, uint8 newState);
 };
 
 #define	B_PCI_MODULE_NAME		"bus_managers/pci/v1"

src/add-ons/kernel/bus_managers/pci/pci.cpp

@@ -300,6 +300,30 @@ pci_update_interrupt_line(uchar virtualBus, uchar device, uchar function,
 }
 
 
+status_t
+pci_get_powerstate(uchar virtualBus, uint8 device, uint8 function, uint8* state)
+{
+	uint8 bus;
+	uint8 domain;
+	if (gPCI->ResolveVirtualBus(virtualBus, &domain, &bus) != B_OK)
+		return B_ERROR;
+
+	return gPCI->GetPowerstate(domain, bus, device, function, state);
+}
+
+
+status_t
+pci_set_powerstate(uchar virtualBus, uint8 device, uint8 function, uint8 newState)
+{
+	uint8 bus;
+	uint8 domain;
+	if (gPCI->ResolveVirtualBus(virtualBus, &domain, &bus) != B_OK)
+		return B_ERROR;
+
+	return gPCI->SetPowerstate(domain, bus, device, function, newState);
+}
+
+
 // used by pci_info.cpp print_info_basic()
 void
 __pci_resolve_virtual_bus(uint8 virtualBus, uint8 *domain, uint8 *bus)
@@ -1838,3 +1862,29 @@ PCI::SetPowerstate(PCIDev *device, uint8 newState)
 	}
 }
 
+
+status_t
+PCI::GetPowerstate(uint8 domain, uint8 bus, uint8 _device, uint8 function,
+	uint8* state)
+{
+	PCIDev *device = FindDevice(domain, bus, _device, function);
+	if (device == NULL)
+		return B_ERROR;
+
+	*state = GetPowerstate(device);
+	return B_OK;
+}
+
+
+status_t
+PCI::SetPowerstate(uint8 domain, uint8 bus, uint8 _device, uint8 function,
+	uint8 newState)
+{
+	PCIDev *device = FindDevice(domain, bus, _device, function);
+	if (device == NULL)
+		return B_ERROR;
+
+	SetPowerstate(device, newState);
+	return B_OK;
+}
+

src/add-ons/kernel/bus_managers/pci/pci.h

@@ -115,7 +115,11 @@ public:
 			void			ClearDeviceStatus(PCIBus *bus, bool dumpStatus);
 
 			uint8			GetPowerstate(PCIDev *device);
+			status_t		GetPowerstate(uint8 domain, uint8 bus, uint8 device,
+								uint8 function, uint8* state);
 			void			SetPowerstate(PCIDev *device, uint8 state);
+			status_t		SetPowerstate(uint8 domain, uint8 bus, uint8 device,
+								uint8 function, uint8 newState);
 
 			void			RefreshDeviceInfo();
 

src/add-ons/kernel/bus_managers/pci/pci_module.cpp

@@ -68,7 +68,9 @@ static struct pci_module_info sOldPCIModule = {
 	&pci_reserve_device,
 	&pci_unreserve_device,
 	&pci_update_interrupt_line,
-	&pci_find_extended_capability
+	&pci_find_extended_capability,
+	&pci_get_powerstate,
+	&pci_set_powerstate
 };
 
 module_dependency module_dependencies[] = {

src/add-ons/kernel/bus_managers/pci/pci_private.h

@@ -60,6 +60,10 @@ status_t	pci_unreserve_device(uchar virtualBus, uchar device, uchar function,
 
 status_t	pci_update_interrupt_line(uchar virtualBus, uchar device,
 				uchar function, uchar newInterruptLineValue);
+status_t	pci_get_powerstate(uchar virtualBus, uint8 device,
+				uint8 function, uint8* state);
+status_t 	pci_set_powerstate(uchar virtualBus, uint8 device,
+				uint8 function, uint8 newState);
 
 status_t 	pci_io_init(void);
 uint8		pci_read_io_8(int mapped_io_addr);