freebsd_network: Clean up attach logic and separate USB logic.

USB code now goes in a separate static library.

This also paves the way for supporting more busses than PCI
and USB in the compat layer.

Tested with realtekwifi, still works.

src/add-ons/kernel/drivers/network/ether/dec21xxx/glue.c

@@ -34,15 +34,15 @@ extern void reenable_interrupts_de(device_t dev);
 extern driver_t *DRIVER_MODULE_NAME(dc, pci);
 extern driver_t *DRIVER_MODULE_NAME(de, pci);
 
-status_t
-__haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]))
+void
+__haiku_init_hardware()
 {
 	driver_t *drivers[] = {
 		DRIVER_MODULE_NAME(dc, pci),
 		DRIVER_MODULE_NAME(de, pci),
 		NULL
 	};
-	return (*handler)(drivers, NULL);
+	_fbsd_init_hardware_pci(drivers);
 }
 
 

src/add-ons/kernel/drivers/network/ether/ipro1000/glue.c

@@ -17,13 +17,13 @@ NO_HAIKU_CHECK_DISABLE_INTERRUPTS();
 NO_HAIKU_REENABLE_INTERRUPTS();
 
 
-status_t
-__haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]))
+void
+__haiku_init_hardware()
 {
 	driver_t *drivers[] = {
 		DRIVER_MODULE_NAME(em, pci),
 		DRIVER_MODULE_NAME(igb, pci),
 		NULL
 	};
-	return (*handler)(drivers, NULL);
+	_fbsd_init_hardware_pci(drivers);
 }

src/add-ons/kernel/drivers/network/ether/pcnet/glue.c

@@ -45,15 +45,15 @@ extern driver_t *DRIVER_MODULE_NAME(le, pci);
 extern driver_t *DRIVER_MODULE_NAME(pcn, pci);
 
 
-status_t
-__haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]))
+void
+__haiku_init_hardware()
 {
 	driver_t *drivers[] = {
 		DRIVER_MODULE_NAME(le, pci),
 		DRIVER_MODULE_NAME(pcn, pci),
 		NULL
 	};
-	return (*handler)(drivers, NULL);
+	_fbsd_init_hardware_pci(drivers);
 }
 
 

src/add-ons/kernel/drivers/network/wlan/ralinkwifi/Jamfile

@@ -29,6 +29,7 @@ KernelAddon ralinkwifi :
 	glue.c
 	:
 	freebsd_wlan.a
+	freebsd_usb.a
 	libfreebsd_network.a
 	;
 

src/add-ons/kernel/drivers/network/wlan/ralinkwifi/glue.c

@@ -49,8 +49,8 @@ extern driver_t* DRIVER_MODULE_NAME(run, uhub);
 extern driver_t* DRIVER_MODULE_NAME(rum, uhub);
 
 
-status_t
-__haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]))
+void
+__haiku_init_hardware()
 {
 	driver_t *pci_drivers[] = {
 		DRIVER_MODULE_NAME(ral, pci),
@@ -63,7 +63,8 @@ __haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[])
 		DRIVER_MODULE_NAME(rum, uhub),
 		NULL
 	};
-	return (*handler)(pci_drivers, usb_drivers);
+	_fbsd_init_hardware_pci(pci_drivers);
+	_fbsd_init_hardware_uhub(usb_drivers);
 }
 
 

src/add-ons/kernel/drivers/network/wlan/realtekwifi/Jamfile

@@ -153,6 +153,7 @@ KernelAddon realtekwifi :
 	r21au_init.c
 	:
 	freebsd_wlan.a
+	freebsd_usb.a
 	libfreebsd_network.a
 	;
 

src/add-ons/kernel/drivers/network/wlan/realtekwifi/glue.c

@@ -43,8 +43,8 @@ NO_HAIKU_FBSD_MII_DRIVER();
 NO_HAIKU_REENABLE_INTERRUPTS();
 
 
-status_t
-__haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]))
+void
+__haiku_init_hardware()
 {
 	driver_t *pci_drivers[] = {
 		DRIVER_MODULE_NAME(rtwn_pci, pci),
@@ -54,7 +54,8 @@ __haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[])
 		DRIVER_MODULE_NAME(rtwn_usb, uhub),
 		NULL
 	};
-	return (*handler)(pci_drivers, usb_drivers);
+	_fbsd_init_hardware_pci(pci_drivers);
+	_fbsd_init_hardware_uhub(usb_drivers);
 }
 
 

src/libs/compat/freebsd_network/Jamfile

@@ -20,9 +20,6 @@ KernelStaticLibrary libfreebsd_network.a :
 	fbsd_subr_sbuf.c
 	fbsd_time.c
 	fbsd_timingsafe.c
-	fbsd_usb_error.c
-	fbsd_usb_util.c
-	fbsd_usb_lookup.c
 
 	bus.cpp
 	bus_dma.cpp
@@ -48,6 +45,14 @@ KernelStaticLibrary libfreebsd_network.a :
 	sysinit.c
 	taskqueue.c
 	unit.cpp
+	;
+
+SEARCH_SOURCE += [ FDirName $(SUBDIR) dev usb ] ;
+
+KernelStaticLibrary freebsd_usb.a :
+	fbsd_usb_error.c
+	fbsd_usb_util.c
+	fbsd_usb_lookup.c
 	usb.cpp
 	usb_util.c
 	;

src/libs/compat/freebsd_network/compat/dev/usb/usb_device.h

@@ -12,6 +12,4 @@ struct usb_device {
 	uint32 haiku_usb_device;
 };
 
-void usb_cleanup_device(struct usb_device* udev);
-
 #endif // _FBSD_COMPAT_USB_DEVICE_H_

src/libs/compat/freebsd_network/compat/sys/haiku-module.h

@@ -78,14 +78,16 @@ typedef struct {
 	__fbsd_ ## name ## _ ## busname
 
 
-status_t _fbsd_init_hardware(driver_t* pci_drivers[], driver_t* uhub_drivers[]);
+void __haiku_init_hardware(void);
+status_t _fbsd_init_hardware();
+status_t _fbsd_init_hardware_pci(driver_t* drivers[]);
+status_t _fbsd_init_hardware_uhub(driver_t* drivers[]);
 status_t _fbsd_init_drivers();
 status_t _fbsd_uninit_drivers();
 
 extern const char *gDriverName;
 driver_t *__haiku_select_miibus_driver(device_t dev);
 driver_t *__haiku_probe_drivers(device_t dev, driver_t *drivers[]);
-status_t __haiku_handle_fbsd_drivers_list(status_t (*handler)(driver_t *[], driver_t *[]));
 
 status_t init_wlan_stack(void);
 void uninit_wlan_stack(void);
@@ -106,15 +108,15 @@ status_t wlan_close(void*);
 	int32 api_version = B_CUR_DRIVER_API_VERSION;						\
 	status_t init_hardware()											\
 	{																	\
-		return __haiku_handle_fbsd_drivers_list(_fbsd_init_hardware);	\
+		return _fbsd_init_hardware();									\
 	}																	\
 	status_t init_driver()												\
 	{																	\
-		return _fbsd_init_drivers();	\
+		return _fbsd_init_drivers();									\
 	}																	\
 	void uninit_driver()												\
 	{																	\
-		_fbsd_uninit_drivers();			\
+		_fbsd_uninit_drivers();											\
 	}																	\
 	const char **publish_devices()										\
 		{ return gDeviceNameList; }										\
@@ -138,12 +140,13 @@ status_t wlan_close(void*);
 
 #define HAIKU_FBSD_DRIVER_GLUE(publicname, name, busname)				\
 	extern driver_t* DRIVER_MODULE_NAME(name, busname);					\
-	status_t __haiku_handle_fbsd_drivers_list(status_t (*proc)(driver_t *[], driver_t *[])) {\
+	void __haiku_init_hardware()										\
+	{																	\
 		driver_t *drivers[] = {											\
 			DRIVER_MODULE_NAME(name, busname),							\
 			NULL														\
 		};																\
-		return (*proc)(drivers, NULL);									\
+		_fbsd_init_hardware_pci(drivers);								\
 	}																	\
 	HAIKU_FBSD_DRIVERS_GLUE(publicname);
 
@@ -152,12 +155,13 @@ status_t wlan_close(void*);
 
 #define HAIKU_FBSD_WLAN_DRIVER_GLUE(publicname, name, busname)			\
 	extern driver_t *DRIVER_MODULE_NAME(name, busname);					\
-	status_t __haiku_handle_fbsd_drivers_list(status_t (*proc)(driver_t *[], driver_t *[])) {\
+	void __haiku_init_hardware()										\
+	{																	\
 		driver_t *drivers[] = {											\
 			DRIVER_MODULE_NAME(name, busname),							\
 			NULL														\
 		};																\
-		return (*proc)(drivers, NULL);									\
+		_fbsd_init_hardware_pci(drivers);								\
 	}																	\
 	HAIKU_FBSD_WLAN_DRIVERS_GLUE(publicname);
 

src/libs/compat/freebsd_network/device.c

@@ -506,8 +506,11 @@ bus_generic_attach(device_t dev)
 				} else {
 					device_printf(dev, "failed to find driver for child device\n");
 				}
-			} else
+			} else {
+				device_printf(dev, "found device driver: %s\n",
+					driver->name);
 				device_set_driver(child, driver);
+			}
 		} else
 			child->methods.device_probe(child);
 
@@ -543,31 +546,32 @@ bus_generic_detach(device_t device)
 
 
 driver_t *
-__haiku_probe_drivers(device_t dev, driver_t *drivers[])
+__haiku_probe_drivers(device_t device, driver_t *drivers[])
 {
 	driver_t *selected = NULL;
-	int i, selectedResult = 0;
+	int best = 0;
 
 	if (drivers == NULL)
 		return NULL;
 
-	for (i = 0; drivers[i]; i++) {
-		device_probe_t *probe = (device_probe_t *)
-			resolve_device_method(drivers[i], ID_device_probe);
-		if (probe == NULL)
-			continue;
+	for (int i = 0; drivers[i]; i++) {
+		// Skip allocating the device softc and just call probe() directly.
+		// (Any drivers which don't support this should be patched.)
+		device->methods.device_register
+			= resolve_device_method(drivers[i], ID_device_register);
+		device->methods.device_probe
+			= resolve_device_method(drivers[i], ID_device_probe);
 
-		int result = probe(dev);
-		if (result >= 0) {
-			if (selected == NULL || result < selectedResult) {
-				selected = drivers[i];
-				selectedResult = result;
-				device_printf(dev, "found %s device driver: %s\n",
-					dev->parent->description, selected->name);
-			}
+		int result = device->methods.device_probe(device);
+		if (result >= 0 && (selected == NULL || result > best)) {
+			selected = drivers[i];
+			best = result;
 		}
 	}
 
+	device->methods.device_register = NULL;
+	device->methods.device_probe = NULL;
+
 	return selected;
 }
 

src/libs/compat/freebsd_network/device.h

@@ -82,13 +82,12 @@ void uninit_callout(void);
 status_t init_pci();
 void uninit_pci();
 
-status_t init_usb();
-void uninit_usb();
+void uninit_usb() __attribute__((weak));
 
-status_t get_next_usb_device(uint32* cookie, struct freebsd_usb_device* result);
-status_t get_usb_device_attach_arg(struct freebsd_usb_device* device, struct usb_attach_arg* uaa);
-
-device_t find_root_device(int);
+void report_probed_device(int bus, void* compat_device, driver_t* driver,
+	void (*prepare_attach)(void*, device_t), void (*free_compat_device)(void*));
+status_t init_root_device(device_t *_root, int bus_type);
+device_t find_root_device(int unit);
 pci_info* get_device_pci_info(device_t dev);
 
 device_method_signature_t resolve_device_method(driver_t *driver, int id);

src/libs/compat/freebsd_network/driver.c

@@ -37,8 +37,10 @@ static struct {
 	driver_t* driver;
 	int bus;
 	struct pci_info pci_info;
-	struct freebsd_usb_device usb_dev;
-	struct usb_attach_arg uaa;
+
+	void* compat_device;
+	void (*prepare_attach)(void*, device_t);
+	void (*free_compat_device)(void*);
 } sProbedDevices[MAX_DEVICES];
 
 const char* gDeviceNameList[MAX_DEVICES + 1];
@@ -46,7 +48,7 @@ struct ifnet* gDevices[MAX_DEVICES];
 int32 gDeviceCount;
 
 
-static status_t
+status_t
 init_root_device(device_t *_root, int bus_type)
 {
 	static driver_t sRootDriverPCI = {
@@ -115,18 +117,41 @@ uninit_probed_devices()
 			gPci->unreserve_device(sProbedDevices[p].pci_info.bus,
 				sProbedDevices[p].pci_info.device, sProbedDevices[p].pci_info.function,
 				gDriverName, NULL);
-		} else if (sProbedDevices->bus == BUS_uhub) {
-			usb_cleanup_device(&sProbedDevices[p].usb_dev);
+		} else {
+			sProbedDevices[p].free_compat_device(sProbedDevices[p].compat_device);
 		}
 	}
 }
 
 
+void
+report_probed_device(int bus, void* compat_device, driver_t* driver,
+	void (*prepare_attach)(void*, device_t), void (*free_compat_device)(void*))
+{
+	int p = 0;
+	while (sProbedDevices[p].bus != BUS_INVALID && p < MAX_DEVICES)
+		p++;
+	if (p == MAX_DEVICES) {
+		free_compat_device(compat_device);
+		return;
+	}
+
+	sProbedDevices[p].bus = bus;
+	sProbedDevices[p].driver = driver;
+	sProbedDevices[p].compat_device = compat_device;
+	sProbedDevices[p].prepare_attach = prepare_attach;
+	sProbedDevices[p].free_compat_device = free_compat_device;
+
+	if ((p + 1) < MAX_DEVICES)
+		sProbedDevices[p + 1].bus = BUS_INVALID;
+}
+
+
 //	#pragma mark - Haiku Driver API
 
 
-static status_t
-init_hardware_pci(driver_t* drivers[])
+status_t
+_fbsd_init_hardware_pci(driver_t* drivers[])
 {
 	status_t status;
 	int i = 0;
@@ -154,23 +179,7 @@ init_hardware_pci(driver_t* drivers[])
 		device.parent = root;
 		device.root = root;
 
-		for (int index = 0; drivers[index] != NULL; index++) {
-			// Skip allocating the device softc and just call probe() directly.
-			// (Any drivers which don't support this should be patched.)
-			device.methods.device_register
-				= resolve_device_method(drivers[index], ID_device_register);
-			device.methods.device_probe
-				= resolve_device_method(drivers[index], ID_device_probe);
-
-			int result = device.methods.device_probe(&device);
-			if (result >= 0 && (driver == NULL || result > best)) {
-				TRACE(("%s, found %s at %d (%d)\n", gDriverName,
-					device_get_desc(device), i, result));
-				driver = drivers[index];
-				best = result;
-			}
-		}
-
+		driver = __haiku_probe_drivers(&device, drivers);
 		if (driver == NULL)
 			continue;
 
@@ -199,94 +208,12 @@ init_hardware_pci(driver_t* drivers[])
 }
 
 
-static status_t
-init_hardware_uhub(driver_t* drivers[])
-{
-	status_t status;
-	device_t root;
-
-	int p = 0;
-	while (sProbedDevices[p].bus != BUS_INVALID)
-		p++;
-
-	status = init_usb();
-	if (status != B_OK)
-		return status;
-
-	status = init_root_device(&root, BUS_uhub);
-	if (status != B_OK)
-		return status;
-
-	bool found = false;
-	uint32 cookie = 0;
-	struct freebsd_usb_device udev = {};
-	while ((status = get_next_usb_device(&cookie, &udev)) == B_OK) {
-		int best = 0;
-		driver_t* driver = NULL;
-
-		struct usb_attach_arg uaa;
-		status = get_usb_device_attach_arg(&udev, &uaa);
-		if (status != B_OK)
-			continue;
-
-		struct device device = {};
-		device.parent = root;
-		device.root = root;
-		device_set_ivars(&device, &uaa);
-
-		for (int index = 0; drivers[index] != NULL; index++) {
-			device.methods.device_register
-				= resolve_device_method(drivers[index], ID_device_register);
-			device.methods.device_probe
-				= resolve_device_method(drivers[index], ID_device_probe);
-
-			int result = device.methods.device_probe(&device);
-			if (result >= 0 && (driver == NULL || result > best)) {
-				TRACE(("%s, found %s at %d (%d)\n", gDriverName,
-					device_get_desc(device), i, result));
-				driver = drivers[index];
-				best = result;
-			}
-		}
-
-		if (driver == NULL)
-			continue;
-
-		sProbedDevices[p].bus = BUS_uhub;
-		sProbedDevices[p].driver = driver;
-		sProbedDevices[p].usb_dev = udev;
-		sProbedDevices[p].uaa = uaa;
-		sProbedDevices[p].uaa.device = &sProbedDevices[p].usb_dev;
-
-		// We just "transferred ownership" of usb_dev to sProbedDevices.
-		memset(&udev, 0, sizeof(udev));
-
-		found = true;
-		p++;
-	}
-	sProbedDevices[p].bus = BUS_INVALID;
-
-	device_delete_child(NULL, root);
-	usb_cleanup_device(&udev);
-
-	if (found)
-		return B_OK;
-
-	uninit_usb();
-	return B_NOT_SUPPORTED;
-}
-
-
 status_t
-_fbsd_init_hardware(driver_t* pci_drivers[], driver_t* uhub_drivers[])
+_fbsd_init_hardware()
 {
 	sProbedDevices[0].bus = BUS_INVALID;
 
-	if (pci_drivers != NULL)
-		init_hardware_pci(pci_drivers);
-
-	if (uhub_drivers != NULL)
-		init_hardware_uhub(uhub_drivers);
+	__haiku_init_hardware();
 
 	return (sProbedDevices[0].bus != BUS_INVALID) ? B_OK : B_NOT_SUPPORTED;
 }
@@ -328,20 +255,16 @@ _fbsd_init_drivers()
 		if (status != B_OK)
 			break;
 
-		if (sProbedDevices[p].bus == BUS_pci) {
-			pci_info* info = get_device_pci_info(root);
-			*info = sProbedDevices[p].pci_info;
-		} else if (sProbedDevices[p].bus == BUS_uhub) {
-			struct root_device_softc* root_softc = (struct root_device_softc*)root->softc;
-			root_softc->usb_dev = &sProbedDevices[p].usb_dev;
-		}
-
 		status = add_child_device(sProbedDevices[p].driver, root, &device);
 		if (status != B_OK)
 			break;
 
-		if (sProbedDevices[p].bus == BUS_uhub)
-			device_set_ivars(device, &sProbedDevices[p].uaa);
+		if (sProbedDevices[p].bus == BUS_pci) {
+			pci_info* info = get_device_pci_info(root);
+			*info = sProbedDevices[p].pci_info;
+		} else {
+			sProbedDevices[p].prepare_attach(sProbedDevices[p].compat_device, device);
+		}
 
 		// some drivers expect probe() to be called before attach()
 		// (i.e. they set driver softc in probe(), etc.)
@@ -376,7 +299,8 @@ err3:
 err2:
 	uninit_probed_devices();
 
-	uninit_usb();
+	if (uninit_usb != NULL)
+		uninit_usb();
 	uninit_pci();
 
 	return status;
@@ -399,7 +323,8 @@ _fbsd_uninit_drivers()
 
 	uninit_probed_devices();
 
-	uninit_usb();
+	if (uninit_usb != NULL)
+		uninit_usb();
 	uninit_pci();
 
 	return B_OK;

src/libs/compat/freebsd_network/usb.cpp

@@ -63,7 +63,7 @@ uninit_usb()
 }
 
 
-status_t
+static status_t
 get_next_usb_device(uint32* cookie, freebsd_usb_device* result)
 {
 	// We cheat here: since USB IDs are sequential, instead of doing a
@@ -114,7 +114,7 @@ get_next_usb_device(uint32* cookie, freebsd_usb_device* result)
 }
 
 
-status_t
+static status_t
 get_usb_device_attach_arg(struct freebsd_usb_device* device, struct usb_attach_arg* uaa)
 {
 	memset(uaa, 0, sizeof(struct usb_attach_arg));
@@ -158,7 +158,7 @@ get_usb_device_attach_arg(struct freebsd_usb_device* device, struct usb_attach_a
 }
 
 
-void
+static void
 usb_cleanup_device(freebsd_usb_device* udev)
 {
 	for (int i = 0; i < USB_MAX_EP_UNITS; i++) {
@@ -168,6 +168,93 @@ usb_cleanup_device(freebsd_usb_device* udev)
 }
 
 
+struct compat_usb_device {
+	freebsd_usb_device udev;
+	struct usb_attach_arg uaa;
+};
+
+
+static void
+free_compat_usb_device(void* cookie)
+{
+	compat_usb_device* compat_device = (compat_usb_device*)cookie;
+	usb_cleanup_device(&compat_device->udev);
+	free(compat_device);
+}
+
+
+static void
+prepare_usb_attach(void* cookie, device_t device)
+{
+	compat_usb_device* compat_device = (compat_usb_device*)cookie;
+
+	struct root_device_softc* root_softc
+		= (struct root_device_softc*)device->parent->softc;
+	root_softc->usb_dev = &compat_device->udev;
+	device_set_ivars(device, &compat_device->uaa);
+}
+
+
+status_t
+_fbsd_init_hardware_uhub(driver_t* drivers[])
+{
+	status_t status;
+	device_t root;
+	const int BUS_uhub = root_device_softc::BUS_uhub;
+
+	status = init_usb();
+	if (status != B_OK)
+		return status;
+
+	status = init_root_device(&root, BUS_uhub);
+	if (status != B_OK)
+		return status;
+
+	bool found = false;
+	uint32 cookie = 0;
+	struct freebsd_usb_device udev = {};
+	while ((status = get_next_usb_device(&cookie, &udev)) == B_OK) {
+		int best = 0;
+		driver_t* driver = NULL;
+
+		struct usb_attach_arg uaa;
+		status = get_usb_device_attach_arg(&udev, &uaa);
+		if (status != B_OK)
+			continue;
+
+		struct device device = {};
+		device.parent = root;
+		device.root = root;
+		device_set_ivars(&device, &uaa);
+
+		driver = __haiku_probe_drivers(&device, drivers);
+		if (driver == NULL)
+			continue;
+
+		compat_usb_device* compat_device = (compat_usb_device*)malloc(sizeof(compat_usb_device));
+		compat_device->udev = udev;
+		compat_device->uaa = uaa;
+		compat_device->uaa.device = &compat_device->udev;
+
+		// We just "transferred ownership" of usb_dev to sProbedDevices.
+		memset(&udev, 0, sizeof(udev));
+
+		report_probed_device(BUS_uhub, compat_device, driver,
+			prepare_usb_attach, free_compat_usb_device);
+		found = true;
+	}
+
+	device_delete_child(NULL, root);
+	usb_cleanup_device(&udev);
+
+	if (found)
+		return B_OK;
+
+	uninit_usb();
+	return B_NOT_SUPPORTED;
+}
+
+
 static usb_error_t
 map_usb_error(status_t err)
 {