/* * Copyright (c) 2009, Citrix Systems, Inc. * Copyright (c) 2010, Microsoft Corporation. * Copyright (c) 2011, Novell Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. */ #include #include #include #include #include #include #include #include #include #include #include #include "hv_api.h" #include "logging.h" #include "version_info.h" #include "vmbus.h" #include "vmbus_api.h" #include "channel.h" #include "vmbus_packet_format.h" /* * Data types */ struct hv_input_dev_info { unsigned short vendor; unsigned short product; unsigned short version; char name[128]; }; /* Represents the input vsc driver */ /* FIXME - can be removed entirely */ struct mousevsc_drv_obj { struct hv_driver Base; }; /* The maximum size of a synthetic input message. */ #define SYNTHHID_MAX_INPUT_REPORT_SIZE 16 /* * Current version * * History: * Beta, RC < 2008/1/22 1,0 * RC > 2008/1/22 2,0 */ #define SYNTHHID_INPUT_VERSION_MAJOR 2 #define SYNTHHID_INPUT_VERSION_MINOR 0 #define SYNTHHID_INPUT_VERSION (SYNTHHID_INPUT_VERSION_MINOR | \ (SYNTHHID_INPUT_VERSION_MAJOR << 16)) #pragma pack(push,1) /* * Message types in the synthetic input protocol */ enum synthhid_msg_type { SynthHidProtocolRequest, SynthHidProtocolResponse, SynthHidInitialDeviceInfo, SynthHidInitialDeviceInfoAck, SynthHidInputReport, SynthHidMax }; /* * Basic message structures. */ struct synthhid_msg_hdr { enum synthhid_msg_type type; u32 size; }; struct synthhid_msg { struct synthhid_msg_hdr header; char data[1]; /* Enclosed message */ }; union synthhid_version { struct { u16 minor_version; u16 major_version; }; u32 version; }; /* * Protocol messages */ struct synthhid_protocol_request { struct synthhid_msg_hdr header; union synthhid_version version_requested; }; struct synthhid_protocol_response { struct synthhid_msg_hdr header; union synthhid_version version_requested; unsigned char approved; }; struct synthhid_device_info { struct synthhid_msg_hdr header; struct hv_input_dev_info hid_dev_info; struct hid_descriptor hid_descriptor; }; struct synthhid_device_info_ack { struct synthhid_msg_hdr header; unsigned char reserved; }; struct synthhid_input_report { struct synthhid_msg_hdr header; char buffer[1]; }; #pragma pack(pop) #define INPUTVSC_SEND_RING_BUFFER_SIZE 10*PAGE_SIZE #define INPUTVSC_RECV_RING_BUFFER_SIZE 10*PAGE_SIZE #define NBITS(x) (((x)/BITS_PER_LONG)+1) enum pipe_prot_msg_type { PipeMessageInvalid = 0, PipeMessageData, PipeMessageMaximum }; struct pipe_prt_msg { enum pipe_prot_msg_type type; u32 size; char data[1]; }; /* * Data types */ struct mousevsc_prt_msg { enum pipe_prot_msg_type type; u32 size; union { struct synthhid_protocol_request request; struct synthhid_protocol_response response; struct synthhid_device_info_ack ack; }; }; /* * Represents an mousevsc device */ struct mousevsc_dev { struct hv_device *Device; /* 0 indicates the device is being destroyed */ atomic_t RefCount; int NumOutstandingRequests; unsigned char bInitializeComplete; struct mousevsc_prt_msg ProtocolReq; struct mousevsc_prt_msg ProtocolResp; /* Synchronize the request/response if needed */ wait_queue_head_t ProtocolWaitEvent; wait_queue_head_t DeviceInfoWaitEvent; int protocol_wait_condition; int device_wait_condition; int DeviceInfoStatus; struct hid_descriptor *HidDesc; unsigned char *ReportDesc; u32 ReportDescSize; struct hv_input_dev_info hid_dev_info; }; static const char *driver_name = "mousevsc"; /* {CFA8B69E-5B4A-4cc0-B98B-8BA1A1F3F95A} */ static const struct hv_guid mouse_guid = { .data = {0x9E, 0xB6, 0xA8, 0xCF, 0x4A, 0x5B, 0xc0, 0x4c, 0xB9, 0x8B, 0x8B, 0xA1, 0xA1, 0xF3, 0xF9, 0x5A} }; static void deviceinfo_callback(struct hv_device *dev, struct hv_input_dev_info *info); static void inputreport_callback(struct hv_device *dev, void *packet, u32 len); static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len); static struct mousevsc_dev *AllocInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = kzalloc(sizeof(struct mousevsc_dev), GFP_KERNEL); if (!inputDevice) return NULL; /* * Set to 2 to allow both inbound and outbound traffics * (ie GetInputDevice() and MustGetInputDevice()) to proceed. */ atomic_cmpxchg(&inputDevice->RefCount, 0, 2); inputDevice->Device = Device; Device->ext = inputDevice; return inputDevice; } static void FreeInputDevice(struct mousevsc_dev *Device) { WARN_ON(atomic_read(&Device->RefCount) == 0); kfree(Device); } /* * Get the inputdevice object if exists and its refcount > 1 */ static struct mousevsc_dev *GetInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = (struct mousevsc_dev *)Device->ext; /* * FIXME * This sure isn't a valid thing to print for debugging, no matter * what the intention is... * * printk(KERN_ERR "-------------------------> REFCOUNT = %d", * inputDevice->RefCount); */ if (inputDevice && atomic_read(&inputDevice->RefCount) > 1) atomic_inc(&inputDevice->RefCount); else inputDevice = NULL; return inputDevice; } /* * Get the inputdevice object iff exists and its refcount > 0 */ static struct mousevsc_dev *MustGetInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = (struct mousevsc_dev *)Device->ext; if (inputDevice && atomic_read(&inputDevice->RefCount)) atomic_inc(&inputDevice->RefCount); else inputDevice = NULL; return inputDevice; } static void PutInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = (struct mousevsc_dev *)Device->ext; atomic_dec(&inputDevice->RefCount); } /* * Drop ref count to 1 to effectively disable GetInputDevice() */ static struct mousevsc_dev *ReleaseInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = (struct mousevsc_dev *)Device->ext; /* Busy wait until the ref drop to 2, then set it to 1 */ while (atomic_cmpxchg(&inputDevice->RefCount, 2, 1) != 2) udelay(100); return inputDevice; } /* * Drop ref count to 0. No one can use InputDevice object. */ static struct mousevsc_dev *FinalReleaseInputDevice(struct hv_device *Device) { struct mousevsc_dev *inputDevice; inputDevice = (struct mousevsc_dev *)Device->ext; /* Busy wait until the ref drop to 1, then set it to 0 */ while (atomic_cmpxchg(&inputDevice->RefCount, 1, 0) != 1) udelay(100); Device->ext = NULL; return inputDevice; } static void MousevscOnSendCompletion(struct hv_device *Device, struct vmpacket_descriptor *Packet) { struct mousevsc_dev *inputDevice; void *request; inputDevice = MustGetInputDevice(Device); if (!inputDevice) { pr_err("unable to get input device...device being destroyed?"); return; } request = (void *)(unsigned long)Packet->trans_id; if (request == &inputDevice->ProtocolReq) { /* FIXME */ /* Shouldn't we be doing something here? */ } PutInputDevice(Device); } static void MousevscOnReceiveDeviceInfo(struct mousevsc_dev *InputDevice, struct synthhid_device_info *DeviceInfo) { int ret = 0; struct hid_descriptor *desc; struct mousevsc_prt_msg ack; /* Assume success for now */ InputDevice->DeviceInfoStatus = 0; /* Save the device attr */ memcpy(&InputDevice->hid_dev_info, &DeviceInfo->hid_dev_info, sizeof(struct hv_input_dev_info)); /* Save the hid desc */ desc = &DeviceInfo->hid_descriptor; WARN_ON(desc->bLength > 0); InputDevice->HidDesc = kzalloc(desc->bLength, GFP_KERNEL); if (!InputDevice->HidDesc) { pr_err("unable to allocate hid descriptor - size %d", desc->bLength); goto Cleanup; } memcpy(InputDevice->HidDesc, desc, desc->bLength); /* Save the report desc */ InputDevice->ReportDescSize = desc->desc[0].wDescriptorLength; InputDevice->ReportDesc = kzalloc(InputDevice->ReportDescSize, GFP_KERNEL); if (!InputDevice->ReportDesc) { pr_err("unable to allocate report descriptor - size %d", InputDevice->ReportDescSize); goto Cleanup; } memcpy(InputDevice->ReportDesc, ((unsigned char *)desc) + desc->bLength, desc->desc[0].wDescriptorLength); /* Send the ack */ memset(&ack, sizeof(struct mousevsc_prt_msg), 0); ack.type = PipeMessageData; ack.size = sizeof(struct synthhid_device_info_ack); ack.ack.header.type = SynthHidInitialDeviceInfoAck; ack.ack.header.size = 1; ack.ack.reserved = 0; ret = vmbus_sendpacket(InputDevice->Device->channel, &ack, sizeof(struct pipe_prt_msg) - sizeof(unsigned char) + sizeof(struct synthhid_device_info_ack), (unsigned long)&ack, VM_PKT_DATA_INBAND, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); if (ret != 0) { pr_err("unable to send synthhid device info ack - ret %d", ret); goto Cleanup; } InputDevice->device_wait_condition = 1; wake_up(&InputDevice->DeviceInfoWaitEvent); return; Cleanup: kfree(InputDevice->HidDesc); InputDevice->HidDesc = NULL; kfree(InputDevice->ReportDesc); InputDevice->ReportDesc = NULL; InputDevice->DeviceInfoStatus = -1; InputDevice->device_wait_condition = 1; wake_up(&InputDevice->DeviceInfoWaitEvent); } static void MousevscOnReceiveInputReport(struct mousevsc_dev *InputDevice, struct synthhid_input_report *InputReport) { struct mousevsc_drv_obj *inputDriver; if (!InputDevice->bInitializeComplete) { pr_info("Initialization incomplete...ignoring InputReport msg"); return; } inputDriver = (struct mousevsc_drv_obj *)InputDevice->Device->drv; inputreport_callback(InputDevice->Device, InputReport->buffer, InputReport->header.size); } static void MousevscOnReceive(struct hv_device *Device, struct vmpacket_descriptor *Packet) { struct pipe_prt_msg *pipeMsg; struct synthhid_msg *hidMsg; struct mousevsc_dev *inputDevice; inputDevice = MustGetInputDevice(Device); if (!inputDevice) { pr_err("unable to get input device...device being destroyed?"); return; } pipeMsg = (struct pipe_prt_msg *)((unsigned long)Packet + (Packet->offset8 << 3)); if (pipeMsg->type != PipeMessageData) { pr_err("unknown pipe msg type - type %d len %d", pipeMsg->type, pipeMsg->size); PutInputDevice(Device); return ; } hidMsg = (struct synthhid_msg *)&pipeMsg->data[0]; switch (hidMsg->header.type) { case SynthHidProtocolResponse: memcpy(&inputDevice->ProtocolResp, pipeMsg, pipeMsg->size + sizeof(struct pipe_prt_msg) - sizeof(unsigned char)); inputDevice->protocol_wait_condition = 1; wake_up(&inputDevice->ProtocolWaitEvent); break; case SynthHidInitialDeviceInfo: WARN_ON(pipeMsg->size >= sizeof(struct hv_input_dev_info)); /* * Parse out the device info into device attr, * hid desc and report desc */ MousevscOnReceiveDeviceInfo(inputDevice, (struct synthhid_device_info *)&pipeMsg->data[0]); break; case SynthHidInputReport: MousevscOnReceiveInputReport(inputDevice, (struct synthhid_input_report *)&pipeMsg->data[0]); break; default: pr_err("unsupported hid msg type - type %d len %d", hidMsg->header.type, hidMsg->header.size); break; } PutInputDevice(Device); } static void MousevscOnChannelCallback(void *Context) { const int packetSize = 0x100; int ret = 0; struct hv_device *device = (struct hv_device *)Context; struct mousevsc_dev *inputDevice; u32 bytesRecvd; u64 requestId; unsigned char packet[packetSize]; struct vmpacket_descriptor *desc; unsigned char *buffer = packet; int bufferlen = packetSize; inputDevice = MustGetInputDevice(device); if (!inputDevice) { pr_err("unable to get input device...device being destroyed?"); return; } do { ret = vmbus_recvpacket_raw(device->channel, buffer, bufferlen, &bytesRecvd, &requestId); if (ret == 0) { if (bytesRecvd > 0) { desc = (struct vmpacket_descriptor *)buffer; switch (desc->type) { case VM_PKT_COMP: MousevscOnSendCompletion(device, desc); break; case VM_PKT_DATA_INBAND: MousevscOnReceive(device, desc); break; default: pr_err("unhandled packet type %d, tid %llx len %d\n", desc->type, requestId, bytesRecvd); break; } /* reset */ if (bufferlen > packetSize) { kfree(buffer); buffer = packet; bufferlen = packetSize; } } else { /* * pr_debug("nothing else to read..."); * reset */ if (bufferlen > packetSize) { kfree(buffer); buffer = packet; bufferlen = packetSize; } break; } } else if (ret == -2) { /* Handle large packet */ bufferlen = bytesRecvd; buffer = kzalloc(bytesRecvd, GFP_KERNEL); if (buffer == NULL) { buffer = packet; bufferlen = packetSize; /* Try again next time around */ pr_err("unable to allocate buffer of size %d!", bytesRecvd); break; } } } while (1); PutInputDevice(device); return; } static int MousevscConnectToVsp(struct hv_device *Device) { int ret = 0; struct mousevsc_dev *inputDevice; struct mousevsc_prt_msg *request; struct mousevsc_prt_msg *response; inputDevice = GetInputDevice(Device); if (!inputDevice) { pr_err("unable to get input device...device being destroyed?"); return -1; } init_waitqueue_head(&inputDevice->ProtocolWaitEvent); init_waitqueue_head(&inputDevice->DeviceInfoWaitEvent); request = &inputDevice->ProtocolReq; /* * Now, initiate the vsc/vsp initialization protocol on the open channel */ memset(request, sizeof(struct mousevsc_prt_msg), 0); request->type = PipeMessageData; request->size = sizeof(struct synthhid_protocol_request); request->request.header.type = SynthHidProtocolRequest; request->request.header.size = sizeof(unsigned long); request->request.version_requested.version = SYNTHHID_INPUT_VERSION; pr_info("synthhid protocol request..."); ret = vmbus_sendpacket(Device->channel, request, sizeof(struct pipe_prt_msg) - sizeof(unsigned char) + sizeof(struct synthhid_protocol_request), (unsigned long)request, VM_PKT_DATA_INBAND, VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED); if (ret != 0) { pr_err("unable to send synthhid protocol request."); goto Cleanup; } inputDevice->protocol_wait_condition = 0; wait_event_timeout(inputDevice->ProtocolWaitEvent, inputDevice->protocol_wait_condition, msecs_to_jiffies(1000)); if (inputDevice->protocol_wait_condition == 0) { ret = -ETIMEDOUT; goto Cleanup; } response = &inputDevice->ProtocolResp; if (!response->response.approved) { pr_err("synthhid protocol request failed (version %d)", SYNTHHID_INPUT_VERSION); ret = -1; goto Cleanup; } inputDevice->device_wait_condition = 0; wait_event_timeout(inputDevice->DeviceInfoWaitEvent, inputDevice->device_wait_condition, msecs_to_jiffies(1000)); if (inputDevice->device_wait_condition == 0) { ret = -ETIMEDOUT; goto Cleanup; } /* * We should have gotten the device attr, hid desc and report * desc at this point */ if (!inputDevice->DeviceInfoStatus) pr_info("**** input channel up and running!! ****"); else ret = -1; Cleanup: PutInputDevice(Device); return ret; } static int MousevscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo) { int ret = 0; struct mousevsc_dev *inputDevice; struct mousevsc_drv_obj *inputDriver; struct hv_input_dev_info dev_info; inputDevice = AllocInputDevice(Device); if (!inputDevice) { ret = -1; goto Cleanup; } inputDevice->bInitializeComplete = false; /* Open the channel */ ret = vmbus_open(Device->channel, INPUTVSC_SEND_RING_BUFFER_SIZE, INPUTVSC_RECV_RING_BUFFER_SIZE, NULL, 0, MousevscOnChannelCallback, Device ); if (ret != 0) { pr_err("unable to open channel: %d", ret); FreeInputDevice(inputDevice); return -1; } pr_info("InputVsc channel open: %d", ret); ret = MousevscConnectToVsp(Device); if (ret != 0) { pr_err("unable to connect channel: %d", ret); vmbus_close(Device->channel); FreeInputDevice(inputDevice); return ret; } inputDriver = (struct mousevsc_drv_obj *)inputDevice->Device->drv; dev_info.vendor = inputDevice->hid_dev_info.vendor; dev_info.product = inputDevice->hid_dev_info.product; dev_info.version = inputDevice->hid_dev_info.version; strcpy(dev_info.name, "Microsoft Vmbus HID-compliant Mouse"); /* Send the device info back up */ deviceinfo_callback(Device, &dev_info); /* Send the report desc back up */ /* workaround SA-167 */ if (inputDevice->ReportDesc[14] == 0x25) inputDevice->ReportDesc[14] = 0x29; reportdesc_callback(Device, inputDevice->ReportDesc, inputDevice->ReportDescSize); inputDevice->bInitializeComplete = true; Cleanup: return ret; } static int MousevscOnDeviceRemove(struct hv_device *Device) { struct mousevsc_dev *inputDevice; int ret = 0; pr_info("disabling input device (%p)...", Device->ext); inputDevice = ReleaseInputDevice(Device); /* * At this point, all outbound traffic should be disable. We only * allow inbound traffic (responses) to proceed * * so that outstanding requests can be completed. */ while (inputDevice->NumOutstandingRequests) { pr_info("waiting for %d requests to complete...", inputDevice->NumOutstandingRequests); udelay(100); } pr_info("removing input device (%p)...", Device->ext); inputDevice = FinalReleaseInputDevice(Device); pr_info("input device (%p) safe to remove", inputDevice); /* Close the channel */ vmbus_close(Device->channel); FreeInputDevice(inputDevice); return ret; } static void MousevscOnCleanup(struct hv_driver *drv) { } /* * Data types */ struct input_device_context { struct hv_device *device_ctx; struct hid_device *hid_device; struct hv_input_dev_info device_info; int connected; }; static struct mousevsc_drv_obj g_mousevsc_drv; static void deviceinfo_callback(struct hv_device *dev, struct hv_input_dev_info *info) { struct input_device_context *input_device_ctx = dev_get_drvdata(&dev->device); memcpy(&input_device_ctx->device_info, info, sizeof(struct hv_input_dev_info)); DPRINT_INFO(INPUTVSC_DRV, "%s", __func__); } static void inputreport_callback(struct hv_device *dev, void *packet, u32 len) { int ret = 0; struct input_device_context *input_dev_ctx = dev_get_drvdata(&dev->device); ret = hid_input_report(input_dev_ctx->hid_device, HID_INPUT_REPORT, packet, len, 1); DPRINT_DBG(INPUTVSC_DRV, "hid_input_report (ret %d)", ret); } static int mousevsc_hid_open(struct hid_device *hid) { return 0; } static void mousevsc_hid_close(struct hid_device *hid) { } static int mousevsc_probe(struct device *device) { int ret = 0; struct hv_driver *drv = drv_to_hv_drv(device->driver); struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv; struct hv_device *device_obj = device_to_hv_device(device); struct input_device_context *input_dev_ctx; input_dev_ctx = kmalloc(sizeof(struct input_device_context), GFP_KERNEL); dev_set_drvdata(device, input_dev_ctx); /* Call to the vsc driver to add the device */ ret = mousevsc_drv_obj->Base.dev_add(device_obj, NULL); if (ret != 0) { DPRINT_ERR(INPUTVSC_DRV, "unable to add input vsc device"); return -1; } return 0; } static int mousevsc_remove(struct device *device) { int ret = 0; struct hv_driver *drv = drv_to_hv_drv(device->driver); struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv; struct hv_device *device_obj = device_to_hv_device(device); struct input_device_context *input_dev_ctx; input_dev_ctx = kmalloc(sizeof(struct input_device_context), GFP_KERNEL); dev_set_drvdata(device, input_dev_ctx); if (input_dev_ctx->connected) { hidinput_disconnect(input_dev_ctx->hid_device); input_dev_ctx->connected = 0; } if (!mousevsc_drv_obj->Base.dev_rm) return -1; /* * Call to the vsc driver to let it know that the device * is being removed */ ret = mousevsc_drv_obj->Base.dev_rm(device_obj); if (ret != 0) { DPRINT_ERR(INPUTVSC_DRV, "unable to remove vsc device (ret %d)", ret); } kfree(input_dev_ctx); return ret; } static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len) { struct input_device_context *input_device_ctx = dev_get_drvdata(&dev->device); struct hid_device *hid_dev; /* hid_debug = -1; */ hid_dev = kmalloc(sizeof(struct hid_device), GFP_KERNEL); if (hid_parse_report(hid_dev, packet, len)) { DPRINT_INFO(INPUTVSC_DRV, "Unable to call hd_parse_report"); return; } if (hid_dev) { DPRINT_INFO(INPUTVSC_DRV, "hid_device created"); hid_dev->ll_driver->open = mousevsc_hid_open; hid_dev->ll_driver->close = mousevsc_hid_close; hid_dev->bus = BUS_VIRTUAL; hid_dev->vendor = input_device_ctx->device_info.vendor; hid_dev->product = input_device_ctx->device_info.product; hid_dev->version = input_device_ctx->device_info.version; hid_dev->dev = dev->device; sprintf(hid_dev->name, "%s", input_device_ctx->device_info.name); /* * HJ Do we want to call it with a 0 */ if (!hidinput_connect(hid_dev, 0)) { hid_dev->claimed |= HID_CLAIMED_INPUT; input_device_ctx->connected = 1; DPRINT_INFO(INPUTVSC_DRV, "HID device claimed by input\n"); } if (!hid_dev->claimed) { DPRINT_ERR(INPUTVSC_DRV, "HID device not claimed by " "input or hiddev\n"); } input_device_ctx->hid_device = hid_dev; } kfree(hid_dev); } static int mousevsc_drv_exit_cb(struct device *dev, void *data) { struct device **curr = (struct device **)data; *curr = dev; return 1; } static void mousevsc_drv_exit(void) { struct mousevsc_drv_obj *mousevsc_drv_obj = &g_mousevsc_drv; struct hv_driver *drv = &g_mousevsc_drv.Base; int ret; struct device *current_dev = NULL; while (1) { current_dev = NULL; /* Get the device */ ret = driver_for_each_device(&drv->driver, NULL, (void *)¤t_dev, mousevsc_drv_exit_cb); if (ret) printk(KERN_ERR "Can't find mouse device!\n"); if (current_dev == NULL) break; /* Initiate removal from the top-down */ device_unregister(current_dev); } if (mousevsc_drv_obj->Base.cleanup) mousevsc_drv_obj->Base.cleanup(&mousevsc_drv_obj->Base); vmbus_child_driver_unregister(&drv->driver); return; } static int mouse_vsc_initialize(struct hv_driver *Driver) { struct mousevsc_drv_obj *inputDriver = (struct mousevsc_drv_obj *)Driver; int ret = 0; Driver->name = driver_name; memcpy(&Driver->dev_type, &mouse_guid, sizeof(struct hv_guid)); /* Setup the dispatch table */ inputDriver->Base.dev_add = MousevscOnDeviceAdd; inputDriver->Base.dev_rm = MousevscOnDeviceRemove; inputDriver->Base.cleanup = MousevscOnCleanup; return ret; } static int __init mousevsc_init(void) { struct mousevsc_drv_obj *input_drv_obj = &g_mousevsc_drv; struct hv_driver *drv = &g_mousevsc_drv.Base; DPRINT_INFO(INPUTVSC_DRV, "Hyper-V Mouse driver initializing."); /* Callback to client driver to complete the initialization */ mouse_vsc_initialize(&input_drv_obj->Base); drv->driver.name = input_drv_obj->Base.name; drv->priv = input_drv_obj; drv->driver.probe = mousevsc_probe; drv->driver.remove = mousevsc_remove; /* The driver belongs to vmbus */ vmbus_child_driver_register(&drv->driver); return 0; } static void __exit mousevsc_exit(void) { mousevsc_drv_exit(); } /* * We don't want to automatically load this driver just yet, it's quite * broken. It's safe if you want to load it yourself manually, but * don't inflict it on unsuspecting users, that's just mean. */ #if 0 /* * We use a PCI table to determine if we should autoload this driver This is * needed by distro tools to determine if the hyperv drivers should be * installed and/or configured. We don't do anything else with the table, but * it needs to be present. */ const static struct pci_device_id microsoft_hv_pci_table[] = { { PCI_DEVICE(0x1414, 0x5353) }, /* VGA compatible controller */ { 0 } }; MODULE_DEVICE_TABLE(pci, microsoft_hv_pci_table); #endif MODULE_LICENSE("GPL"); MODULE_VERSION(HV_DRV_VERSION); module_init(mousevsc_init); module_exit(mousevsc_exit);