Staging: hv: remove hv_mouse driver as it's now in the hid directory
This removes the hv_mouse driver as it's now in Jiri's HID tree in the "proper" place. Cc: KY Srinivasan <kys@microsoft.com> Cc: Jiri Kosina <jikos@jikos.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
6af04b065b
commit
fe17a8c009
3 changed files with 0 additions and 609 deletions
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@ -3,9 +3,3 @@ config HYPERV_STORAGE
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depends on HYPERV && SCSI
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depends on HYPERV && SCSI
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help
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help
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Select this option to enable the Hyper-V virtual storage driver.
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Select this option to enable the Hyper-V virtual storage driver.
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config HYPERV_MOUSE
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tristate "Microsoft Hyper-V mouse driver"
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depends on HYPERV && HID
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help
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Select this option to enable the Hyper-V mouse driver.
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@ -1,4 +1,3 @@
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obj-$(CONFIG_HYPERV_STORAGE) += hv_storvsc.o
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obj-$(CONFIG_HYPERV_STORAGE) += hv_storvsc.o
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obj-$(CONFIG_HYPERV_MOUSE) += hv_mouse.o
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hv_storvsc-y := storvsc_drv.o
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hv_storvsc-y := storvsc_drv.o
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@ -1,602 +0,0 @@
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/*
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* Copyright (c) 2009, Citrix Systems, Inc.
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* Copyright (c) 2010, Microsoft Corporation.
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* Copyright (c) 2011, Novell Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/completion.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/hiddev.h>
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#include <linux/hyperv.h>
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struct hv_input_dev_info {
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unsigned int size;
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unsigned short vendor;
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unsigned short product;
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unsigned short version;
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unsigned short reserved[11];
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};
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/* The maximum size of a synthetic input message. */
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#define SYNTHHID_MAX_INPUT_REPORT_SIZE 16
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/*
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* Current version
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*
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* History:
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* Beta, RC < 2008/1/22 1,0
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* RC > 2008/1/22 2,0
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*/
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#define SYNTHHID_INPUT_VERSION_MAJOR 2
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#define SYNTHHID_INPUT_VERSION_MINOR 0
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#define SYNTHHID_INPUT_VERSION (SYNTHHID_INPUT_VERSION_MINOR | \
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(SYNTHHID_INPUT_VERSION_MAJOR << 16))
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#pragma pack(push, 1)
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/*
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* Message types in the synthetic input protocol
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*/
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enum synthhid_msg_type {
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SYNTH_HID_PROTOCOL_REQUEST,
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SYNTH_HID_PROTOCOL_RESPONSE,
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SYNTH_HID_INITIAL_DEVICE_INFO,
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SYNTH_HID_INITIAL_DEVICE_INFO_ACK,
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SYNTH_HID_INPUT_REPORT,
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SYNTH_HID_MAX
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};
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/*
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* Basic message structures.
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*/
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struct synthhid_msg_hdr {
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enum synthhid_msg_type type;
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u32 size;
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};
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struct synthhid_msg {
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struct synthhid_msg_hdr header;
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char data[1]; /* Enclosed message */
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};
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union synthhid_version {
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struct {
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u16 minor_version;
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u16 major_version;
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};
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u32 version;
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};
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/*
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* Protocol messages
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*/
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struct synthhid_protocol_request {
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struct synthhid_msg_hdr header;
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union synthhid_version version_requested;
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};
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struct synthhid_protocol_response {
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struct synthhid_msg_hdr header;
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union synthhid_version version_requested;
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unsigned char approved;
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};
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struct synthhid_device_info {
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struct synthhid_msg_hdr header;
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struct hv_input_dev_info hid_dev_info;
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struct hid_descriptor hid_descriptor;
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};
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struct synthhid_device_info_ack {
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struct synthhid_msg_hdr header;
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unsigned char reserved;
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};
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struct synthhid_input_report {
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struct synthhid_msg_hdr header;
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char buffer[1];
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};
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#pragma pack(pop)
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#define INPUTVSC_SEND_RING_BUFFER_SIZE (10*PAGE_SIZE)
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#define INPUTVSC_RECV_RING_BUFFER_SIZE (10*PAGE_SIZE)
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enum pipe_prot_msg_type {
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PIPE_MESSAGE_INVALID,
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PIPE_MESSAGE_DATA,
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PIPE_MESSAGE_MAXIMUM
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};
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struct pipe_prt_msg {
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enum pipe_prot_msg_type type;
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u32 size;
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char data[1];
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};
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struct mousevsc_prt_msg {
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enum pipe_prot_msg_type type;
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u32 size;
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union {
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struct synthhid_protocol_request request;
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struct synthhid_protocol_response response;
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struct synthhid_device_info_ack ack;
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};
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};
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/*
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* Represents an mousevsc device
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*/
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struct mousevsc_dev {
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struct hv_device *device;
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bool init_complete;
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bool connected;
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struct mousevsc_prt_msg protocol_req;
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struct mousevsc_prt_msg protocol_resp;
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/* Synchronize the request/response if needed */
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struct completion wait_event;
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int dev_info_status;
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struct hid_descriptor *hid_desc;
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unsigned char *report_desc;
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u32 report_desc_size;
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struct hv_input_dev_info hid_dev_info;
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struct hid_device *hid_device;
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};
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static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
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{
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struct mousevsc_dev *input_dev;
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input_dev = kzalloc(sizeof(struct mousevsc_dev), GFP_KERNEL);
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if (!input_dev)
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return NULL;
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input_dev->device = device;
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hv_set_drvdata(device, input_dev);
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init_completion(&input_dev->wait_event);
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return input_dev;
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}
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static void free_input_device(struct mousevsc_dev *device)
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{
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kfree(device->hid_desc);
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kfree(device->report_desc);
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hv_set_drvdata(device->device, NULL);
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kfree(device);
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}
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static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
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struct synthhid_device_info *device_info)
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{
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int ret = 0;
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struct hid_descriptor *desc;
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struct mousevsc_prt_msg ack;
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/* Assume success for now */
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input_device->dev_info_status = 0;
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memcpy(&input_device->hid_dev_info, &device_info->hid_dev_info,
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sizeof(struct hv_input_dev_info));
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desc = &device_info->hid_descriptor;
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WARN_ON(desc->bLength == 0);
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input_device->hid_desc = kmemdup(desc, desc->bLength, GFP_ATOMIC);
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if (!input_device->hid_desc)
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goto cleanup;
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input_device->report_desc_size = desc->desc[0].wDescriptorLength;
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if (input_device->report_desc_size == 0)
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goto cleanup;
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input_device->report_desc = kzalloc(input_device->report_desc_size,
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GFP_ATOMIC);
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if (!input_device->report_desc)
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goto cleanup;
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memcpy(input_device->report_desc,
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((unsigned char *)desc) + desc->bLength,
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desc->desc[0].wDescriptorLength);
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/* Send the ack */
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memset(&ack, 0, sizeof(struct mousevsc_prt_msg));
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ack.type = PIPE_MESSAGE_DATA;
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ack.size = sizeof(struct synthhid_device_info_ack);
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ack.ack.header.type = SYNTH_HID_INITIAL_DEVICE_INFO_ACK;
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ack.ack.header.size = 1;
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ack.ack.reserved = 0;
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ret = vmbus_sendpacket(input_device->device->channel,
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&ack,
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sizeof(struct pipe_prt_msg) - sizeof(unsigned char) +
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sizeof(struct synthhid_device_info_ack),
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(unsigned long)&ack,
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VM_PKT_DATA_INBAND,
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VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
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if (ret != 0)
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goto cleanup;
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complete(&input_device->wait_event);
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return;
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cleanup:
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kfree(input_device->hid_desc);
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input_device->hid_desc = NULL;
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kfree(input_device->report_desc);
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input_device->report_desc = NULL;
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input_device->dev_info_status = -1;
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complete(&input_device->wait_event);
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}
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static void mousevsc_on_receive(struct hv_device *device,
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struct vmpacket_descriptor *packet)
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{
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struct pipe_prt_msg *pipe_msg;
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struct synthhid_msg *hid_msg;
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struct mousevsc_dev *input_dev = hv_get_drvdata(device);
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struct synthhid_input_report *input_report;
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pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet +
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(packet->offset8 << 3));
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if (pipe_msg->type != PIPE_MESSAGE_DATA)
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return;
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hid_msg = (struct synthhid_msg *)&pipe_msg->data[0];
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switch (hid_msg->header.type) {
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case SYNTH_HID_PROTOCOL_RESPONSE:
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/*
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* While it will be impossible for us to protect against
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* malicious/buggy hypervisor/host, add a check here to
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* ensure we don't corrupt memory.
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*/
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if ((pipe_msg->size + sizeof(struct pipe_prt_msg)
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- sizeof(unsigned char))
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> sizeof(struct mousevsc_prt_msg)) {
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WARN_ON(1);
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break;
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}
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memcpy(&input_dev->protocol_resp, pipe_msg,
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pipe_msg->size + sizeof(struct pipe_prt_msg) -
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sizeof(unsigned char));
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complete(&input_dev->wait_event);
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break;
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case SYNTH_HID_INITIAL_DEVICE_INFO:
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WARN_ON(pipe_msg->size < sizeof(struct hv_input_dev_info));
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/*
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* Parse out the device info into device attr,
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* hid desc and report desc
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*/
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mousevsc_on_receive_device_info(input_dev,
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(struct synthhid_device_info *)&pipe_msg->data[0]);
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break;
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case SYNTH_HID_INPUT_REPORT:
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input_report =
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(struct synthhid_input_report *)&pipe_msg->data[0];
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if (!input_dev->init_complete)
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break;
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hid_input_report(input_dev->hid_device,
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HID_INPUT_REPORT, input_report->buffer,
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input_report->header.size, 1);
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break;
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default:
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pr_err("unsupported hid msg type - type %d len %d",
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hid_msg->header.type, hid_msg->header.size);
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break;
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}
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}
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static void mousevsc_on_channel_callback(void *context)
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{
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const int packet_size = 0x100;
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int ret;
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struct hv_device *device = context;
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u32 bytes_recvd;
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u64 req_id;
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struct vmpacket_descriptor *desc;
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unsigned char *buffer;
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int bufferlen = packet_size;
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buffer = kmalloc(bufferlen, GFP_ATOMIC);
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if (!buffer)
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return;
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do {
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ret = vmbus_recvpacket_raw(device->channel, buffer,
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bufferlen, &bytes_recvd, &req_id);
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switch (ret) {
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case 0:
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if (bytes_recvd <= 0) {
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kfree(buffer);
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return;
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}
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desc = (struct vmpacket_descriptor *)buffer;
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switch (desc->type) {
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case VM_PKT_COMP:
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break;
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case VM_PKT_DATA_INBAND:
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mousevsc_on_receive(device, desc);
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break;
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default:
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pr_err("unhandled packet type %d, tid %llx len %d\n",
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desc->type,
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req_id,
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bytes_recvd);
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break;
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}
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break;
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case -ENOBUFS:
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kfree(buffer);
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/* Handle large packet */
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bufferlen = bytes_recvd;
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buffer = kmalloc(bytes_recvd, GFP_ATOMIC);
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if (!buffer)
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return;
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break;
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}
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} while (1);
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}
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static int mousevsc_connect_to_vsp(struct hv_device *device)
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{
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int ret = 0;
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int t;
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struct mousevsc_dev *input_dev = hv_get_drvdata(device);
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struct mousevsc_prt_msg *request;
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struct mousevsc_prt_msg *response;
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request = &input_dev->protocol_req;
|
|
||||||
|
|
||||||
memset(request, 0, sizeof(struct mousevsc_prt_msg));
|
|
||||||
|
|
||||||
request->type = PIPE_MESSAGE_DATA;
|
|
||||||
request->size = sizeof(struct synthhid_protocol_request);
|
|
||||||
|
|
||||||
request->request.header.type = SYNTH_HID_PROTOCOL_REQUEST;
|
|
||||||
request->request.header.size = sizeof(unsigned int);
|
|
||||||
request->request.version_requested.version = SYNTHHID_INPUT_VERSION;
|
|
||||||
|
|
||||||
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)
|
|
||||||
goto cleanup;
|
|
||||||
|
|
||||||
t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
|
|
||||||
if (!t) {
|
|
||||||
ret = -ETIMEDOUT;
|
|
||||||
goto cleanup;
|
|
||||||
}
|
|
||||||
|
|
||||||
response = &input_dev->protocol_resp;
|
|
||||||
|
|
||||||
if (!response->response.approved) {
|
|
||||||
pr_err("synthhid protocol request failed (version %d)\n",
|
|
||||||
SYNTHHID_INPUT_VERSION);
|
|
||||||
ret = -ENODEV;
|
|
||||||
goto cleanup;
|
|
||||||
}
|
|
||||||
|
|
||||||
t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
|
|
||||||
if (!t) {
|
|
||||||
ret = -ETIMEDOUT;
|
|
||||||
goto cleanup;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*
|
|
||||||
* We should have gotten the device attr, hid desc and report
|
|
||||||
* desc at this point
|
|
||||||
*/
|
|
||||||
if (input_dev->dev_info_status)
|
|
||||||
ret = -ENOMEM;
|
|
||||||
|
|
||||||
cleanup:
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int mousevsc_hid_open(struct hid_device *hid)
|
|
||||||
{
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int mousevsc_hid_start(struct hid_device *hid)
|
|
||||||
{
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void mousevsc_hid_close(struct hid_device *hid)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
static void mousevsc_hid_stop(struct hid_device *hid)
|
|
||||||
{
|
|
||||||
}
|
|
||||||
|
|
||||||
static struct hid_ll_driver mousevsc_ll_driver = {
|
|
||||||
.open = mousevsc_hid_open,
|
|
||||||
.close = mousevsc_hid_close,
|
|
||||||
.start = mousevsc_hid_start,
|
|
||||||
.stop = mousevsc_hid_stop,
|
|
||||||
};
|
|
||||||
|
|
||||||
static struct hid_driver mousevsc_hid_driver;
|
|
||||||
|
|
||||||
static int mousevsc_probe(struct hv_device *device,
|
|
||||||
const struct hv_vmbus_device_id *dev_id)
|
|
||||||
{
|
|
||||||
int ret = 0;
|
|
||||||
struct mousevsc_dev *input_dev;
|
|
||||||
struct hid_device *hid_dev;
|
|
||||||
|
|
||||||
input_dev = alloc_input_device(device);
|
|
||||||
|
|
||||||
if (!input_dev)
|
|
||||||
return -ENOMEM;
|
|
||||||
|
|
||||||
input_dev->init_complete = false;
|
|
||||||
|
|
||||||
ret = vmbus_open(device->channel,
|
|
||||||
INPUTVSC_SEND_RING_BUFFER_SIZE,
|
|
||||||
INPUTVSC_RECV_RING_BUFFER_SIZE,
|
|
||||||
NULL,
|
|
||||||
0,
|
|
||||||
mousevsc_on_channel_callback,
|
|
||||||
device
|
|
||||||
);
|
|
||||||
|
|
||||||
if (ret != 0) {
|
|
||||||
free_input_device(input_dev);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = mousevsc_connect_to_vsp(device);
|
|
||||||
|
|
||||||
if (ret != 0)
|
|
||||||
goto probe_err0;
|
|
||||||
|
|
||||||
/* workaround SA-167 */
|
|
||||||
if (input_dev->report_desc[14] == 0x25)
|
|
||||||
input_dev->report_desc[14] = 0x29;
|
|
||||||
|
|
||||||
hid_dev = hid_allocate_device();
|
|
||||||
if (IS_ERR(hid_dev)) {
|
|
||||||
ret = PTR_ERR(hid_dev);
|
|
||||||
goto probe_err0;
|
|
||||||
}
|
|
||||||
|
|
||||||
hid_dev->ll_driver = &mousevsc_ll_driver;
|
|
||||||
hid_dev->driver = &mousevsc_hid_driver;
|
|
||||||
hid_dev->bus = BUS_VIRTUAL;
|
|
||||||
hid_dev->vendor = input_dev->hid_dev_info.vendor;
|
|
||||||
hid_dev->product = input_dev->hid_dev_info.product;
|
|
||||||
hid_dev->version = input_dev->hid_dev_info.version;
|
|
||||||
input_dev->hid_device = hid_dev;
|
|
||||||
|
|
||||||
sprintf(hid_dev->name, "%s", "Microsoft Vmbus HID-compliant Mouse");
|
|
||||||
|
|
||||||
ret = hid_add_device(hid_dev);
|
|
||||||
if (ret)
|
|
||||||
goto probe_err1;
|
|
||||||
|
|
||||||
ret = hid_parse_report(hid_dev, input_dev->report_desc,
|
|
||||||
input_dev->report_desc_size);
|
|
||||||
|
|
||||||
if (ret) {
|
|
||||||
hid_err(hid_dev, "parse failed\n");
|
|
||||||
goto probe_err1;
|
|
||||||
}
|
|
||||||
|
|
||||||
ret = hid_hw_start(hid_dev, HID_CONNECT_HIDINPUT | HID_CONNECT_HIDDEV);
|
|
||||||
|
|
||||||
if (ret) {
|
|
||||||
hid_err(hid_dev, "hw start failed\n");
|
|
||||||
goto probe_err1;
|
|
||||||
}
|
|
||||||
|
|
||||||
input_dev->connected = true;
|
|
||||||
input_dev->init_complete = true;
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
|
|
||||||
probe_err1:
|
|
||||||
hid_destroy_device(hid_dev);
|
|
||||||
|
|
||||||
probe_err0:
|
|
||||||
vmbus_close(device->channel);
|
|
||||||
free_input_device(input_dev);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
static int mousevsc_remove(struct hv_device *dev)
|
|
||||||
{
|
|
||||||
struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
|
|
||||||
|
|
||||||
vmbus_close(dev->channel);
|
|
||||||
|
|
||||||
if (input_dev->connected) {
|
|
||||||
hidinput_disconnect(input_dev->hid_device);
|
|
||||||
input_dev->connected = false;
|
|
||||||
hid_destroy_device(input_dev->hid_device);
|
|
||||||
}
|
|
||||||
|
|
||||||
free_input_device(input_dev);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static const struct hv_vmbus_device_id id_table[] = {
|
|
||||||
/* Mouse guid */
|
|
||||||
{ VMBUS_DEVICE(0x9E, 0xB6, 0xA8, 0xCF, 0x4A, 0x5B, 0xc0, 0x4c,
|
|
||||||
0xB9, 0x8B, 0x8B, 0xA1, 0xA1, 0xF3, 0xF9, 0x5A) },
|
|
||||||
{ },
|
|
||||||
};
|
|
||||||
|
|
||||||
MODULE_DEVICE_TABLE(vmbus, id_table);
|
|
||||||
|
|
||||||
static struct hv_driver mousevsc_drv = {
|
|
||||||
.name = KBUILD_MODNAME,
|
|
||||||
.id_table = id_table,
|
|
||||||
.probe = mousevsc_probe,
|
|
||||||
.remove = mousevsc_remove,
|
|
||||||
};
|
|
||||||
|
|
||||||
static int __init mousevsc_init(void)
|
|
||||||
{
|
|
||||||
return vmbus_driver_register(&mousevsc_drv);
|
|
||||||
}
|
|
||||||
|
|
||||||
static void __exit mousevsc_exit(void)
|
|
||||||
{
|
|
||||||
vmbus_driver_unregister(&mousevsc_drv);
|
|
||||||
}
|
|
||||||
|
|
||||||
MODULE_LICENSE("GPL");
|
|
||||||
MODULE_VERSION(HV_DRV_VERSION);
|
|
||||||
module_init(mousevsc_init);
|
|
||||||
module_exit(mousevsc_exit);
|
|
||||||
Loading…
Add table
Reference in a new issue