2011-02-27 15:43:10 +00:00
|
|
|
/*
|
2011-03-03 01:49:30 +00:00
|
|
|
* Copyright (c) 2009, Citrix Systems, Inc.
|
|
|
|
* Copyright (c) 2010, Microsoft Corporation.
|
|
|
|
* Copyright (c) 2011, Novell Inc.
|
2011-02-27 15:43:10 +00:00
|
|
|
*
|
2011-03-03 01:49:30 +00:00
|
|
|
* 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.
|
2011-02-27 15:43:10 +00:00
|
|
|
*
|
2011-03-03 01:49:30 +00:00
|
|
|
* 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.
|
2011-02-27 15:43:10 +00:00
|
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/device.h>
|
|
|
|
#include <linux/workqueue.h>
|
2011-03-03 01:42:50 +00:00
|
|
|
#include <linux/sched.h>
|
|
|
|
#include <linux/wait.h>
|
2011-02-27 15:43:10 +00:00
|
|
|
#include <linux/input.h>
|
|
|
|
#include <linux/hid.h>
|
|
|
|
#include <linux/hiddev.h>
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <linux/dmi.h>
|
|
|
|
|
|
|
|
#include "hv_api.h"
|
|
|
|
#include "logging.h"
|
|
|
|
#include "version_info.h"
|
|
|
|
#include "vmbus.h"
|
2011-03-03 01:42:50 +00:00
|
|
|
#include "vmbus_api.h"
|
|
|
|
#include "channel.h"
|
|
|
|
#include "vmbus_packet_format.h"
|
2011-03-03 01:53:58 +00:00
|
|
|
|
|
|
|
|
2011-03-03 01:57:51 +00:00
|
|
|
/*
|
|
|
|
* Data types
|
|
|
|
*/
|
2011-03-03 02:57:04 +00:00
|
|
|
struct hv_input_dev_info {
|
|
|
|
unsigned short vendor;
|
|
|
|
unsigned short product;
|
|
|
|
unsigned short version;
|
|
|
|
char name[128];
|
2011-03-03 01:57:51 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Represents the input vsc driver */
|
2011-03-03 02:38:31 +00:00
|
|
|
/* FIXME - can be removed entirely */
|
2011-03-03 01:57:51 +00:00
|
|
|
struct mousevsc_drv_obj {
|
2011-03-03 02:38:31 +00:00
|
|
|
struct hv_driver Base;
|
2011-03-03 01:57:51 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
2011-03-03 01:53:58 +00:00
|
|
|
/* 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
|
|
|
|
*/
|
2011-03-03 03:18:34 +00:00
|
|
|
#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))
|
2011-03-03 01:53:58 +00:00
|
|
|
|
|
|
|
|
|
|
|
#pragma pack(push,1)
|
|
|
|
/*
|
|
|
|
* Message types in the synthetic input protocol
|
|
|
|
*/
|
|
|
|
enum synthhid_msg_type {
|
|
|
|
SynthHidProtocolRequest,
|
|
|
|
SynthHidProtocolResponse,
|
|
|
|
SynthHidInitialDeviceInfo,
|
|
|
|
SynthHidInitialDeviceInfoAck,
|
|
|
|
SynthHidInputReport,
|
|
|
|
SynthHidMax
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Basic message structures.
|
|
|
|
*/
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_msg_hdr {
|
2011-03-03 03:01:49 +00:00
|
|
|
enum synthhid_msg_type type;
|
|
|
|
u32 size;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_msg {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:11:49 +00:00
|
|
|
char data[1]; /* Enclosed message */
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
2011-03-03 02:21:01 +00:00
|
|
|
union synthhid_version {
|
2011-03-03 01:53:58 +00:00
|
|
|
struct {
|
2011-03-03 03:18:34 +00:00
|
|
|
u16 minor_version;
|
|
|
|
u16 major_version;
|
2011-03-03 01:53:58 +00:00
|
|
|
};
|
2011-03-03 03:18:34 +00:00
|
|
|
u32 version;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Protocol messages
|
|
|
|
*/
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_protocol_request {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:18:34 +00:00
|
|
|
union synthhid_version version_requested;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct synthhid_protocol_response {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:18:34 +00:00
|
|
|
union synthhid_version version_requested;
|
2011-03-03 03:19:58 +00:00
|
|
|
unsigned char approved;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
struct synthhid_device_info {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:24:05 +00:00
|
|
|
struct hv_input_dev_info hid_dev_info;
|
2011-03-03 03:27:17 +00:00
|
|
|
struct hid_descriptor hid_descriptor;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_device_info_ack {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:29:42 +00:00
|
|
|
unsigned char reserved;
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_input_report {
|
2011-03-03 03:04:09 +00:00
|
|
|
struct synthhid_msg_hdr header;
|
2011-03-03 03:31:39 +00:00
|
|
|
char buffer[1];
|
2011-03-03 02:21:01 +00:00
|
|
|
};
|
2011-03-03 01:53:58 +00:00
|
|
|
|
|
|
|
#pragma pack(pop)
|
|
|
|
|
2011-03-03 01:57:51 +00:00
|
|
|
#define INPUTVSC_SEND_RING_BUFFER_SIZE 10*PAGE_SIZE
|
|
|
|
#define INPUTVSC_RECV_RING_BUFFER_SIZE 10*PAGE_SIZE
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
#define NBITS(x) (((x)/BITS_PER_LONG)+1)
|
|
|
|
|
2011-03-03 01:42:50 +00:00
|
|
|
enum pipe_prot_msg_type {
|
|
|
|
PipeMessageInvalid = 0,
|
|
|
|
PipeMessageData,
|
|
|
|
PipeMessageMaximum
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
struct pipe_prt_msg {
|
2011-03-03 03:36:15 +00:00
|
|
|
enum pipe_prot_msg_type type;
|
2011-03-03 03:38:29 +00:00
|
|
|
u32 size;
|
2011-03-03 03:39:48 +00:00
|
|
|
char data[1];
|
2011-03-03 01:42:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Data types
|
|
|
|
*/
|
|
|
|
struct mousevsc_prt_msg {
|
2011-03-03 03:36:15 +00:00
|
|
|
enum pipe_prot_msg_type type;
|
2011-03-03 03:38:29 +00:00
|
|
|
u32 size;
|
2011-03-03 01:42:50 +00:00
|
|
|
union {
|
2011-03-03 03:41:00 +00:00
|
|
|
struct synthhid_protocol_request request;
|
|
|
|
struct synthhid_protocol_response response;
|
|
|
|
struct synthhid_device_info_ack ack;
|
2011-03-03 03:33:17 +00:00
|
|
|
};
|
2011-03-03 01:42:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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;
|
2011-03-03 03:24:05 +00:00
|
|
|
struct hv_input_dev_info hid_dev_info;
|
2011-03-03 01:42:50 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
|
2011-03-03 03:42:19 +00:00
|
|
|
static const char *driver_name = "mousevsc";
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
/* {CFA8B69E-5B4A-4cc0-B98B-8BA1A1F3F95A} */
|
2011-03-03 03:44:13 +00:00
|
|
|
static const struct hv_guid mouse_guid = {
|
2011-03-03 01:42:50 +00:00
|
|
|
.data = {0x9E, 0xB6, 0xA8, 0xCF, 0x4A, 0x5B, 0xc0, 0x4c,
|
|
|
|
0xB9, 0x8B, 0x8B, 0xA1, 0xA1, 0xF3, 0xF9, 0x5A}
|
|
|
|
};
|
|
|
|
|
2011-03-03 02:57:04 +00:00
|
|
|
static void deviceinfo_callback(struct hv_device *dev, struct hv_input_dev_info *info);
|
2011-03-03 02:38:31 +00:00
|
|
|
static void inputreport_callback(struct hv_device *dev, void *packet, u32 len);
|
|
|
|
static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len);
|
|
|
|
|
2011-03-03 02:40:16 +00:00
|
|
|
static struct mousevsc_dev *AllocInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:40:16 +00:00
|
|
|
static void FreeInputDevice(struct mousevsc_dev *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
WARN_ON(atomic_read(&Device->RefCount) == 0);
|
|
|
|
kfree(Device);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get the inputdevice object if exists and its refcount > 1
|
|
|
|
*/
|
2011-03-03 02:40:16 +00:00
|
|
|
static struct mousevsc_dev *GetInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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
|
|
|
|
*/
|
2011-03-03 02:40:16 +00:00
|
|
|
static struct mousevsc_dev *MustGetInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:40:16 +00:00
|
|
|
static void PutInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
struct mousevsc_dev *inputDevice;
|
|
|
|
|
|
|
|
inputDevice = (struct mousevsc_dev *)Device->ext;
|
|
|
|
|
|
|
|
atomic_dec(&inputDevice->RefCount);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Drop ref count to 1 to effectively disable GetInputDevice()
|
|
|
|
*/
|
2011-03-03 02:40:16 +00:00
|
|
|
static struct mousevsc_dev *ReleaseInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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.
|
|
|
|
*/
|
2011-03-03 02:40:16 +00:00
|
|
|
static struct mousevsc_dev *FinalReleaseInputDevice(struct hv_device *Device)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void MousevscOnSendCompletion(struct hv_device *Device, struct vmpacket_descriptor *Packet)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
struct mousevsc_dev *inputDevice;
|
|
|
|
void *request;
|
|
|
|
|
|
|
|
inputDevice = MustGetInputDevice(Device);
|
|
|
|
if (!inputDevice) {
|
|
|
|
pr_err("unable to get input device...device being destroyed?");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2011-03-03 03:08:05 +00:00
|
|
|
request = (void *)(unsigned long)Packet->trans_id;
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
if (request == &inputDevice->ProtocolReq) {
|
|
|
|
/* FIXME */
|
|
|
|
/* Shouldn't we be doing something here? */
|
|
|
|
}
|
|
|
|
|
|
|
|
PutInputDevice(Device);
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void MousevscOnReceiveDeviceInfo(struct mousevsc_dev *InputDevice, struct synthhid_device_info *DeviceInfo)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
struct hid_descriptor *desc;
|
|
|
|
struct mousevsc_prt_msg ack;
|
|
|
|
|
|
|
|
/* Assume success for now */
|
|
|
|
InputDevice->DeviceInfoStatus = 0;
|
|
|
|
|
|
|
|
/* Save the device attr */
|
2011-03-03 03:24:05 +00:00
|
|
|
memcpy(&InputDevice->hid_dev_info, &DeviceInfo->hid_dev_info, sizeof(struct hv_input_dev_info));
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
/* Save the hid desc */
|
2011-03-03 03:27:17 +00:00
|
|
|
desc = &DeviceInfo->hid_descriptor;
|
2011-03-03 01:42:50 +00:00
|
|
|
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);
|
|
|
|
|
2011-03-03 03:36:15 +00:00
|
|
|
ack.type = PipeMessageData;
|
2011-03-03 03:38:29 +00:00
|
|
|
ack.size = sizeof(struct synthhid_device_info_ack);
|
2011-03-03 01:42:50 +00:00
|
|
|
|
2011-03-03 03:41:00 +00:00
|
|
|
ack.ack.header.type = SynthHidInitialDeviceInfoAck;
|
|
|
|
ack.ack.header.size = 1;
|
|
|
|
ack.ack.reserved = 0;
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
ret = vmbus_sendpacket(InputDevice->Device->channel,
|
|
|
|
&ack,
|
2011-03-03 02:21:01 +00:00
|
|
|
sizeof(struct pipe_prt_msg) - sizeof(unsigned char) +
|
|
|
|
sizeof(struct synthhid_device_info_ack),
|
2011-03-03 01:42:50 +00:00
|
|
|
(unsigned long)&ack,
|
|
|
|
VM_PKT_DATA_INBAND,
|
|
|
|
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
|
|
|
|
if (ret != 0) {
|
2011-03-03 02:21:01 +00:00
|
|
|
pr_err("unable to send synthhid device info ack - ret %d",
|
2011-03-03 01:42:50 +00:00
|
|
|
ret);
|
|
|
|
goto Cleanup;
|
|
|
|
}
|
|
|
|
|
|
|
|
InputDevice->device_wait_condition = 1;
|
|
|
|
wake_up(&InputDevice->DeviceInfoWaitEvent);
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
Cleanup:
|
2011-03-13 05:29:00 +00:00
|
|
|
kfree(InputDevice->HidDesc);
|
|
|
|
InputDevice->HidDesc = NULL;
|
2011-03-03 01:42:50 +00:00
|
|
|
|
2011-03-13 05:29:00 +00:00
|
|
|
kfree(InputDevice->ReportDesc);
|
|
|
|
InputDevice->ReportDesc = NULL;
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
InputDevice->DeviceInfoStatus = -1;
|
|
|
|
InputDevice->device_wait_condition = 1;
|
|
|
|
wake_up(&InputDevice->DeviceInfoWaitEvent);
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void MousevscOnReceiveInputReport(struct mousevsc_dev *InputDevice, struct synthhid_input_report *InputReport)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
struct mousevsc_drv_obj *inputDriver;
|
|
|
|
|
|
|
|
if (!InputDevice->bInitializeComplete) {
|
|
|
|
pr_info("Initialization incomplete...ignoring InputReport msg");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
inputDriver = (struct mousevsc_drv_obj *)InputDevice->Device->drv;
|
|
|
|
|
2011-03-03 02:38:31 +00:00
|
|
|
inputreport_callback(InputDevice->Device,
|
2011-03-03 03:31:39 +00:00
|
|
|
InputReport->buffer,
|
2011-03-03 03:04:09 +00:00
|
|
|
InputReport->header.size);
|
2011-03-03 01:42:50 +00:00
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void MousevscOnReceive(struct hv_device *Device, struct vmpacket_descriptor *Packet)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
struct pipe_prt_msg *pipeMsg;
|
2011-03-03 02:21:01 +00:00
|
|
|
struct synthhid_msg *hidMsg;
|
2011-03-03 01:42:50 +00:00
|
|
|
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));
|
|
|
|
|
2011-03-03 03:36:15 +00:00
|
|
|
if (pipeMsg->type != PipeMessageData) {
|
2011-03-03 01:42:50 +00:00
|
|
|
pr_err("unknown pipe msg type - type %d len %d",
|
2011-03-03 03:38:29 +00:00
|
|
|
pipeMsg->type, pipeMsg->size);
|
2011-03-03 01:42:50 +00:00
|
|
|
PutInputDevice(Device);
|
|
|
|
return ;
|
|
|
|
}
|
|
|
|
|
2011-03-03 03:39:48 +00:00
|
|
|
hidMsg = (struct synthhid_msg *)&pipeMsg->data[0];
|
2011-03-03 01:42:50 +00:00
|
|
|
|
2011-03-03 03:04:09 +00:00
|
|
|
switch (hidMsg->header.type) {
|
2011-03-03 01:42:50 +00:00
|
|
|
case SynthHidProtocolResponse:
|
2011-03-03 03:38:29 +00:00
|
|
|
memcpy(&inputDevice->ProtocolResp, pipeMsg,
|
|
|
|
pipeMsg->size + sizeof(struct pipe_prt_msg) -
|
|
|
|
sizeof(unsigned char));
|
2011-03-03 01:42:50 +00:00
|
|
|
inputDevice->protocol_wait_condition = 1;
|
|
|
|
wake_up(&inputDevice->ProtocolWaitEvent);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case SynthHidInitialDeviceInfo:
|
2011-03-03 03:38:29 +00:00
|
|
|
WARN_ON(pipeMsg->size >= sizeof(struct hv_input_dev_info));
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Parse out the device info into device attr,
|
|
|
|
* hid desc and report desc
|
|
|
|
*/
|
|
|
|
MousevscOnReceiveDeviceInfo(inputDevice,
|
2011-03-03 03:39:48 +00:00
|
|
|
(struct synthhid_device_info *)&pipeMsg->data[0]);
|
2011-03-03 01:42:50 +00:00
|
|
|
break;
|
|
|
|
case SynthHidInputReport:
|
|
|
|
MousevscOnReceiveInputReport(inputDevice,
|
2011-03-03 03:39:48 +00:00
|
|
|
(struct synthhid_input_report *)&pipeMsg->data[0]);
|
2011-03-03 01:42:50 +00:00
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
pr_err("unsupported hid msg type - type %d len %d",
|
2011-03-03 03:04:09 +00:00
|
|
|
hidMsg->header.type, hidMsg->header.size);
|
2011-03-03 01:42:50 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
PutInputDevice(Device);
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void MousevscOnChannelCallback(void *Context)
|
2011-03-03 01:42:50 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
2011-02-27 15:43:10 +00:00
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
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);
|
|
|
|
|
2011-03-03 03:36:15 +00:00
|
|
|
request->type = PipeMessageData;
|
2011-03-03 03:38:29 +00:00
|
|
|
request->size = sizeof(struct synthhid_protocol_request);
|
2011-03-03 02:50:15 +00:00
|
|
|
|
2011-03-03 03:41:00 +00:00
|
|
|
request->request.header.type = SynthHidProtocolRequest;
|
|
|
|
request->request.header.size = sizeof(unsigned long);
|
|
|
|
request->request.version_requested.version = SYNTHHID_INPUT_VERSION;
|
2011-03-03 02:50:15 +00:00
|
|
|
|
|
|
|
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;
|
|
|
|
|
2011-03-03 03:41:00 +00:00
|
|
|
if (!response->response.approved) {
|
2011-03-03 02:50:15 +00:00
|
|
|
pr_err("synthhid protocol request failed (version %d)",
|
2011-03-03 03:18:34 +00:00
|
|
|
SYNTHHID_INPUT_VERSION);
|
2011-03-03 02:50:15 +00:00
|
|
|
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;
|
2011-03-03 03:24:05 +00:00
|
|
|
struct hv_input_dev_info dev_info;
|
2011-03-03 02:50:15 +00:00
|
|
|
|
|
|
|
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);
|
|
|
|
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);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
inputDriver = (struct mousevsc_drv_obj *)inputDevice->Device->drv;
|
|
|
|
|
2011-03-03 03:24:05 +00:00
|
|
|
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");
|
2011-03-03 02:50:15 +00:00
|
|
|
|
|
|
|
/* Send the device info back up */
|
2011-03-03 03:24:05 +00:00
|
|
|
deviceinfo_callback(Device, &dev_info);
|
2011-03-03 02:50:15 +00:00
|
|
|
|
|
|
|
/* 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)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2011-02-27 15:43:10 +00:00
|
|
|
/*
|
|
|
|
* Data types
|
|
|
|
*/
|
|
|
|
struct input_device_context {
|
2011-03-07 21:35:48 +00:00
|
|
|
struct hv_device *device_ctx;
|
2011-02-27 15:43:10 +00:00
|
|
|
struct hid_device *hid_device;
|
2011-03-03 02:57:04 +00:00
|
|
|
struct hv_input_dev_info device_info;
|
2011-02-27 15:43:10 +00:00
|
|
|
int connected;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
2011-03-07 22:16:46 +00:00
|
|
|
static struct mousevsc_drv_obj g_mousevsc_drv;
|
2011-02-27 15:43:10 +00:00
|
|
|
|
2011-03-03 02:57:04 +00:00
|
|
|
static void deviceinfo_callback(struct hv_device *dev, struct hv_input_dev_info *info)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
struct input_device_context *input_device_ctx =
|
2011-03-07 21:35:48 +00:00
|
|
|
dev_get_drvdata(&dev->device);
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
memcpy(&input_device_ctx->device_info, info,
|
2011-03-03 02:57:04 +00:00
|
|
|
sizeof(struct hv_input_dev_info));
|
2011-02-27 15:43:10 +00:00
|
|
|
|
2011-03-03 02:38:31 +00:00
|
|
|
DPRINT_INFO(INPUTVSC_DRV, "%s", __func__);
|
2011-02-27 15:43:10 +00:00
|
|
|
}
|
|
|
|
|
2011-03-03 02:38:31 +00:00
|
|
|
static void inputreport_callback(struct hv_device *dev, void *packet, u32 len)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
struct input_device_context *input_dev_ctx =
|
2011-03-07 21:35:48 +00:00
|
|
|
dev_get_drvdata(&dev->device);
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static int mousevsc_hid_open(struct hid_device *hid)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void mousevsc_hid_close(struct hid_device *hid)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static int mousevsc_probe(struct device *device)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-03-07 21:32:31 +00:00
|
|
|
struct hv_driver *drv =
|
|
|
|
drv_to_hv_drv(device->driver);
|
2011-03-07 22:16:46 +00:00
|
|
|
struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv;
|
2011-02-27 15:43:10 +00:00
|
|
|
|
2011-03-07 21:35:48 +00:00
|
|
|
struct hv_device *device_obj = device_to_hv_device(device);
|
2011-02-27 15:43:10 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static int mousevsc_remove(struct device *device)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-03-07 21:32:31 +00:00
|
|
|
struct hv_driver *drv =
|
|
|
|
drv_to_hv_drv(device->driver);
|
2011-03-07 22:16:46 +00:00
|
|
|
struct mousevsc_drv_obj *mousevsc_drv_obj = drv->priv;
|
2011-02-27 15:43:10 +00:00
|
|
|
|
2011-03-07 21:35:48 +00:00
|
|
|
struct hv_device *device_obj = device_to_hv_device(device);
|
2011-02-27 15:43:10 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 01:19:05 +00:00
|
|
|
if (!mousevsc_drv_obj->Base.dev_rm)
|
2011-02-27 15:43:10 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:38:31 +00:00
|
|
|
static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
struct input_device_context *input_device_ctx =
|
2011-03-07 21:35:48 +00:00
|
|
|
dev_get_drvdata(&dev->device);
|
2011-02-27 15:43:10 +00:00
|
|
|
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;
|
|
|
|
|
2011-03-03 02:58:35 +00:00
|
|
|
hid_dev->bus = BUS_VIRTUAL;
|
2011-03-03 02:57:04 +00:00
|
|
|
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;
|
2011-03-07 21:35:48 +00:00
|
|
|
hid_dev->dev = dev->device;
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
sprintf(hid_dev->name, "%s",
|
2011-03-03 02:57:04 +00:00
|
|
|
input_device_ctx->device_info.name);
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static int mousevsc_drv_exit_cb(struct device *dev, void *data)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
|
|
|
struct device **curr = (struct device **)data;
|
|
|
|
*curr = dev;
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static void mousevsc_drv_exit(void)
|
2011-02-27 15:43:10 +00:00
|
|
|
{
|
2011-03-07 22:16:46 +00:00
|
|
|
struct mousevsc_drv_obj *mousevsc_drv_obj = &g_mousevsc_drv;
|
|
|
|
struct hv_driver *drv = &g_mousevsc_drv.Base;
|
2011-02-27 15:43:10 +00:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
struct device *current_dev = NULL;
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
current_dev = NULL;
|
|
|
|
|
|
|
|
/* Get the device */
|
2011-03-07 21:32:31 +00:00
|
|
|
ret = driver_for_each_device(&drv->driver, NULL,
|
2011-03-03 01:19:05 +00:00
|
|
|
(void *)¤t_dev,
|
|
|
|
mousevsc_drv_exit_cb);
|
2011-02-27 15:43:10 +00:00
|
|
|
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);
|
|
|
|
|
2011-03-07 21:32:31 +00:00
|
|
|
vmbus_child_driver_unregister(&drv->driver);
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2011-03-03 02:50:15 +00:00
|
|
|
static int mouse_vsc_initialize(struct hv_driver *Driver)
|
|
|
|
{
|
|
|
|
struct mousevsc_drv_obj *inputDriver =
|
|
|
|
(struct mousevsc_drv_obj *)Driver;
|
|
|
|
int ret = 0;
|
|
|
|
|
2011-03-03 03:42:19 +00:00
|
|
|
Driver->name = driver_name;
|
2011-03-03 03:44:13 +00:00
|
|
|
memcpy(&Driver->dev_type, &mouse_guid,
|
2011-03-03 02:50:15 +00:00
|
|
|
sizeof(struct hv_guid));
|
|
|
|
|
|
|
|
/* Setup the dispatch table */
|
|
|
|
inputDriver->Base.dev_add = MousevscOnDeviceAdd;
|
|
|
|
inputDriver->Base.dev_rm = MousevscOnDeviceRemove;
|
|
|
|
inputDriver->Base.cleanup = MousevscOnCleanup;
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2011-02-27 15:43:10 +00:00
|
|
|
static int __init mousevsc_init(void)
|
|
|
|
{
|
2011-03-07 22:16:46 +00:00
|
|
|
struct mousevsc_drv_obj *input_drv_obj = &g_mousevsc_drv;
|
|
|
|
struct hv_driver *drv = &g_mousevsc_drv.Base;
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
DPRINT_INFO(INPUTVSC_DRV, "Hyper-V Mouse driver initializing.");
|
|
|
|
|
2011-03-03 02:28:52 +00:00
|
|
|
/* Callback to client driver to complete the initialization */
|
|
|
|
mouse_vsc_initialize(&input_drv_obj->Base);
|
|
|
|
|
2011-03-07 21:32:31 +00:00
|
|
|
drv->driver.name = input_drv_obj->Base.name;
|
|
|
|
drv->priv = input_drv_obj;
|
2011-03-03 02:28:52 +00:00
|
|
|
|
2011-03-07 21:32:31 +00:00
|
|
|
drv->driver.probe = mousevsc_probe;
|
|
|
|
drv->driver.remove = mousevsc_remove;
|
2011-03-03 02:28:52 +00:00
|
|
|
|
|
|
|
/* The driver belongs to vmbus */
|
2011-03-07 21:32:31 +00:00
|
|
|
vmbus_child_driver_register(&drv->driver);
|
2011-03-03 02:28:52 +00:00
|
|
|
|
|
|
|
return 0;
|
2011-02-27 15:43:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit mousevsc_exit(void)
|
|
|
|
{
|
|
|
|
mousevsc_drv_exit();
|
|
|
|
}
|
|
|
|
|
2011-03-03 01:15:14 +00:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
2011-02-27 15:43:10 +00:00
|
|
|
/*
|
|
|
|
* 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);
|
2011-03-03 01:15:14 +00:00
|
|
|
#endif
|
2011-02-27 15:43:10 +00:00
|
|
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_VERSION(HV_DRV_VERSION);
|
|
|
|
module_init(mousevsc_init);
|
|
|
|
module_exit(mousevsc_exit);
|
|
|
|
|