1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
40 #include <contrib/dev/acpica/include/acpi.h>
41 #include <contrib/dev/acpica/include/accommon.h>
42 #include <contrib/dev/acpica/include/amlcode.h>
43 #include <dev/acpica/acpivar.h>
45 #include <dev/spibus/spibusvar.h>
65 	ACPI_HANDLE		handle;  member
71 	return (res->Type == ACPI_RESOURCE_TYPE_SERIAL_BUS &&  in acpi_resource_is_spi_serialbus()
72 	    res->Data.CommonSerialBus.Type == ACPI_RESOURCE_SERIAL_TYPE_SPI);  in acpi_resource_is_spi_serialbus()
80 	ACPI_HANDLE handle;  in acpi_spibus_get_acpi_res_cb()  local
84 		    res->Data.SpiSerialBus.ResourceSource.StringPtr, &handle);  in acpi_spibus_get_acpi_res_cb()
87 		memcpy(sb, &res->Data.SpiSerialBus,  in acpi_spibus_get_acpi_res_cb()
93 		sb->ResourceSource_Handle = handle;  in acpi_spibus_get_acpi_res_cb()
95 	} else if (res->Type == ACPI_RESOURCE_TYPE_END_TAG)  in acpi_spibus_get_acpi_res_cb()
102 acpi_spibus_dump_res(device_t dev, ACPI_SPIBUS_RESOURCE_SPI_SERIALBUS *sb)  in acpi_spibus_dump_res()  argument
104 	device_printf(dev, "found ACPI child\n");  in acpi_spibus_dump_res()
105 	printf("  DeviceSelection:   0x%04hx\n", sb->DeviceSelection);  in acpi_spibus_dump_res()
106 	printf("  ConnectionSpeed:   %uHz\n", sb->ConnectionSpeed);  in acpi_spibus_dump_res()
108 	    sb->WireMode == ACPI_SPI_4WIRE_MODE ?  in acpi_spibus_dump_res()
111 	     sb->DevicePolarity == ACPI_SPI_ACTIVE_LOW ?  in acpi_spibus_dump_res()
113 	printf("  DataBitLength:     %uBit\n", sb->DataBitLength);  in acpi_spibus_dump_res()
115 	    sb->ClockPhase == ACPI_SPI_FIRST_PHASE ?  in acpi_spibus_dump_res()
118 	    sb->ClockPolarity == ACPI_SPI_START_LOW ?  in acpi_spibus_dump_res()
121 	    sb->SlaveMode == ACPI_CONTROLLER_INITIATED ?  in acpi_spibus_dump_res()
123 	printf("  ConnectionSharing: %s\n", sb->ConnectionSharing == 0 ?  in acpi_spibus_dump_res()
128 acpi_spibus_get_acpi_res(device_t spibus, ACPI_HANDLE dev,  in acpi_spibus_get_acpi_res()  argument
138 	if (ACPI_FAILURE(AcpiWalkResources(dev, "_CRS",  in acpi_spibus_get_acpi_res()
154 		res->cs = sb.DeviceSelection - 1;  in acpi_spibus_get_acpi_res()
156 		res->cs = sb.DeviceSelection;  in acpi_spibus_get_acpi_res()
157 	res->mode =  in acpi_spibus_get_acpi_res()
160 	res->clock =  sb.ConnectionSpeed;  in acpi_spibus_get_acpi_res()
167 acpi_spibus_get_apple_res(device_t spibus, ACPI_HANDLE dev,  in acpi_spibus_get_apple_res()  argument
170 	/* a0b5b7c6-1318-441c-b0c9-fe695eaf949b */  in acpi_spibus_get_apple_res()
182 	if (ACPI_FAILURE(AcpiGetParent(dev, &parent)))  in acpi_spibus_get_apple_res()
186 	if (ACPI_FAILURE(acpi_EvaluateDSMTyped(dev, apple_guid,  in acpi_spibus_get_apple_res()
191 	if (pkg->Package.Count % 2 != 0) {  in acpi_spibus_get_apple_res()
193 		    pkg->Package.Count);  in acpi_spibus_get_apple_res()
201 	for (comp = pkg->Package.Elements;  in acpi_spibus_get_apple_res()
202 	     comp < pkg->Package.Elements + pkg->Package.Count;  in acpi_spibus_get_apple_res()
220 				ivar->clock = 1000000000 / val;  in acpi_spibus_get_apple_res()
223 				ivar->mode |= SPIBUS_MODE_CPOL;  in acpi_spibus_get_apple_res()
226 				ivar->mode |= SPIBUS_MODE_CPHA;  in acpi_spibus_get_apple_res()
228 			ivar->cs_delay = val;  in acpi_spibus_get_apple_res()
239 acpi_spibus_delete_acpi_child(ACPI_HANDLE handle)  in acpi_spibus_delete_acpi_child()  argument
244 	acpi_child = acpi_get_device(handle);  in acpi_spibus_delete_acpi_child()
261 acpi_spibus_add_child(device_t dev, u_int order, const char *name, int unit)  in acpi_spibus_add_child()  argument
264 	    dev, order, name, unit, sizeof(struct acpi_spibus_ivar)));  in acpi_spibus_add_child()
268 acpi_spibus_enumerate_child(ACPI_HANDLE handle, UINT32 level,  in acpi_spibus_enumerate_child()  argument
283 	if (!ACPI_FAILURE(acpi_GetInteger(handle, "_STA", &sta)) &&  in acpi_spibus_enumerate_child()
287 	if (!acpi_has_hid(handle))  in acpi_spibus_enumerate_child()
291 	if (acpi_spibus_get_acpi_res(spibus, handle, &res) == 0)  in acpi_spibus_enumerate_child()
295 	    acpi_spibus_get_apple_res(spibus, handle, &res) == 0)  in acpi_spibus_enumerate_child()
302 	if (acpi_spibus_delete_acpi_child(handle) != 0)  in acpi_spibus_enumerate_child()
305 	child = BUS_ADD_CHILD(spibus, 0, NULL, -1);  in acpi_spibus_enumerate_child()
315 	acpi_set_handle(child, handle);  in acpi_spibus_enumerate_child()
316 	acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL);  in acpi_spibus_enumerate_child()
319 	 * Update ACPI-CA to use the IIC enumerated device_t for this handle.  in acpi_spibus_enumerate_child()
321 	status = AcpiAttachData(handle, acpi_fake_objhandler, child);  in acpi_spibus_enumerate_child()
323 		printf("WARNING: Unable to attach object data to %s - %s\n",  in acpi_spibus_enumerate_child()
324 		    acpi_name(handle), AcpiFormatException(status));  in acpi_spibus_enumerate_child()
330 acpi_spibus_enumerate_children(device_t dev)  in acpi_spibus_enumerate_children()  argument
333 	    ACPI_UINT32_MAX, acpi_spibus_enumerate_child, NULL, dev, NULL));  in acpi_spibus_enumerate_children()
337 acpi_spibus_set_power_children(device_t dev, int state, bool all_children)  in acpi_spibus_set_power_children()  argument
342 	if (device_get_children(dev, &devlist, &numdevs) != 0)  in acpi_spibus_set_power_children()
353 acpi_spibus_probe(device_t dev)  in acpi_spibus_probe()  argument
355 	ACPI_HANDLE handle;  in acpi_spibus_probe()  local
361 	controller = device_get_parent(dev);  in acpi_spibus_probe()
365 	handle = acpi_get_handle(controller);  in acpi_spibus_probe()
366 	if (handle == NULL)  in acpi_spibus_probe()
369 	device_set_desc(dev, "SPI bus (ACPI-hinted)");  in acpi_spibus_probe()
374 acpi_spibus_attach(device_t dev)  in acpi_spibus_attach()  argument
385 	if (ACPI_FAILURE(acpi_spibus_enumerate_children(dev)))  in acpi_spibus_attach()
386 		device_printf(dev, "children enumeration failed\n");  in acpi_spibus_attach()
388 	acpi_spibus_set_power_children(dev, ACPI_STATE_D0, true);  in acpi_spibus_attach()
389 	return (spibus_attach(dev));  in acpi_spibus_attach()
393 acpi_spibus_detach(device_t dev)  in acpi_spibus_detach()  argument
395 	acpi_spibus_set_power_children(dev, ACPI_STATE_D3, false);  in acpi_spibus_detach()
397 	return (bus_generic_detach(dev));  in acpi_spibus_detach()
401 acpi_spibus_suspend(device_t dev)  in acpi_spibus_suspend()  argument
403 	acpi_spibus_set_power_children(dev, ACPI_STATE_D3, false);  in acpi_spibus_suspend()
405 	return (bus_generic_suspend(dev));  in acpi_spibus_suspend()
409 acpi_spibus_resume(device_t dev)  in acpi_spibus_resume()  argument
411 	acpi_spibus_set_power_children(dev, ACPI_STATE_D0, false);  in acpi_spibus_resume()
413 	return (bus_generic_resume(dev));  in acpi_spibus_resume()
419 acpi_spibus_alloc_resource(device_t dev, device_t child, int type, int *rid,  in acpi_spibus_alloc_resource()  argument
426 	if (device_get_parent(child) != dev)  in acpi_spibus_alloc_resource()
427 		return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,  in acpi_spibus_alloc_resource()
430 	rl = BUS_GET_RESOURCE_LIST(dev, child);  in acpi_spibus_alloc_resource()
434 	res = resource_list_alloc(rl, dev, child, type, rid,  in acpi_spibus_alloc_resource()
459 acpi_spibus_driver_added(device_t dev, driver_t *driver)  in acpi_spibus_driver_added()  argument
464 	DEVICE_IDENTIFY(driver, dev);  in acpi_spibus_driver_added()
465 	if (device_get_children(dev, &devlist, &numdevs) != 0)  in acpi_spibus_driver_added()
484 	if (acpi_get_device(devi->handle) == child)  in acpi_spibus_child_deleted()
485 		AcpiDetachData(devi->handle, acpi_fake_objhandler);  in acpi_spibus_child_deleted()
495 		*res = (uintptr_t)devi->handle;  in acpi_spibus_read_ivar()
511 		if (devi->handle != NULL)  in acpi_spibus_write_ivar()
513 		devi->handle = (ACPI_HANDLE)val;  in acpi_spibus_write_ivar()
535 	if (devi->handle != NULL)  in acpi_spibus_child_location()
536 		sbuf_printf(sb, " handle=%s", acpi_name(devi->handle));  in acpi_spibus_child_location()
548 	    devi->handle == NULL ? ENOTSUP : acpi_pnpinfo(devi->handle, sb));  in acpi_spibus_child_pnpinfo()