static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = kzalloc(sizeof(struct mousevsc_dev), GFP_KERNEL);
+ input_dev = kzalloc(sizeof(struct mousevsc_dev), GFP_KERNEL);
- if (!inputDevice)
+ if (!input_dev)
return NULL;
/*
* Set to 2 to allow both inbound and outbound traffics
* (ie get_input_device() and must_get_input_device()) to proceed.
*/
- atomic_cmpxchg(&inputDevice->ref_count, 0, 2);
+ atomic_cmpxchg(&input_dev->ref_count, 0, 2);
- inputDevice->device = device;
- device->ext = inputDevice;
+ input_dev->device = device;
+ device->ext = input_dev;
- return inputDevice;
+ return input_dev;
}
static void free_input_device(struct mousevsc_dev *device)
*/
static struct mousevsc_dev *get_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = (struct mousevsc_dev *)device->ext;
+ input_dev = (struct mousevsc_dev *)device->ext;
/*
* FIXME
* what the intention is...
*
* printk(KERN_ERR "-------------------------> REFCOUNT = %d",
- * inputDevice->ref_count);
+ * input_dev->ref_count);
*/
- if (inputDevice && atomic_read(&inputDevice->ref_count) > 1)
- atomic_inc(&inputDevice->ref_count);
+ if (input_dev && atomic_read(&input_dev->ref_count) > 1)
+ atomic_inc(&input_dev->ref_count);
else
- inputDevice = NULL;
+ input_dev = NULL;
- return inputDevice;
+ return input_dev;
}
/*
*/
static struct mousevsc_dev *must_get_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = (struct mousevsc_dev *)device->ext;
+ input_dev = (struct mousevsc_dev *)device->ext;
- if (inputDevice && atomic_read(&inputDevice->ref_count))
- atomic_inc(&inputDevice->ref_count);
+ if (input_dev && atomic_read(&input_dev->ref_count))
+ atomic_inc(&input_dev->ref_count);
else
- inputDevice = NULL;
+ input_dev = NULL;
- return inputDevice;
+ return input_dev;
}
static void put_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = (struct mousevsc_dev *)device->ext;
+ input_dev = (struct mousevsc_dev *)device->ext;
- atomic_dec(&inputDevice->ref_count);
+ atomic_dec(&input_dev->ref_count);
}
/*
*/
static struct mousevsc_dev *release_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = (struct mousevsc_dev *)device->ext;
+ input_dev = (struct mousevsc_dev *)device->ext;
/* Busy wait until the ref drop to 2, then set it to 1 */
- while (atomic_cmpxchg(&inputDevice->ref_count, 2, 1) != 2)
+ while (atomic_cmpxchg(&input_dev->ref_count, 2, 1) != 2)
udelay(100);
- return inputDevice;
+ return input_dev;
}
/*
*/
static struct mousevsc_dev *final_release_input_device(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- inputDevice = (struct mousevsc_dev *)device->ext;
+ input_dev = (struct mousevsc_dev *)device->ext;
/* Busy wait until the ref drop to 1, then set it to 0 */
- while (atomic_cmpxchg(&inputDevice->ref_count, 1, 0) != 1)
+ while (atomic_cmpxchg(&input_dev->ref_count, 1, 0) != 1)
udelay(100);
device->ext = NULL;
- return inputDevice;
+ return input_dev;
}
static void mousevsc_on_send_completion(struct hv_device *device,
struct vmpacket_descriptor *packet)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
void *request;
- inputDevice = must_get_input_device(device);
- if (!inputDevice) {
+ input_dev = must_get_input_device(device);
+ if (!input_dev) {
pr_err("unable to get input device...device being destroyed?");
return;
}
request = (void *)(unsigned long)packet->trans_id;
- if (request == &inputDevice->protocol_req) {
+ if (request == &input_dev->protocol_req) {
/* FIXME */
/* Shouldn't we be doing something here? */
}
static void mousevsc_on_receive_input_report(struct mousevsc_dev *input_device,
struct synthhid_input_report *input_report)
{
- struct mousevsc_drv_obj *inputDriver;
+ struct mousevsc_drv_obj *input_drv;
if (!input_device->init_complete) {
pr_info("Initialization incomplete...ignoring input_report msg");
return;
}
- inputDriver = (struct mousevsc_drv_obj *)input_device->device->drv;
+ input_drv = (struct mousevsc_drv_obj *)input_device->device->drv;
inputreport_callback(input_device->device,
input_report->buffer,
static void mousevsc_on_receive(struct hv_device *device,
struct vmpacket_descriptor *packet)
{
- struct pipe_prt_msg *pipeMsg;
- struct synthhid_msg *hidMsg;
- struct mousevsc_dev *inputDevice;
+ struct pipe_prt_msg *pipe_msg;
+ struct synthhid_msg *hid_msg;
+ struct mousevsc_dev *input_dev;
- inputDevice = must_get_input_device(device);
- if (!inputDevice) {
+ input_dev = must_get_input_device(device);
+ if (!input_dev) {
pr_err("unable to get input device...device being destroyed?");
return;
}
- pipeMsg = (struct pipe_prt_msg *)((unsigned long)packet +
+ pipe_msg = (struct pipe_prt_msg *)((unsigned long)packet +
(packet->offset8 << 3));
- if (pipeMsg->type != PipeMessageData) {
+ if (pipe_msg->type != PipeMessageData) {
pr_err("unknown pipe msg type - type %d len %d",
- pipeMsg->type, pipeMsg->size);
+ pipe_msg->type, pipe_msg->size);
put_input_device(device);
return ;
}
- hidMsg = (struct synthhid_msg *)&pipeMsg->data[0];
+ hid_msg = (struct synthhid_msg *)&pipe_msg->data[0];
- switch (hidMsg->header.type) {
+ switch (hid_msg->header.type) {
case SynthHidProtocolResponse:
- memcpy(&inputDevice->protocol_resp, pipeMsg,
- pipeMsg->size + sizeof(struct pipe_prt_msg) -
+ memcpy(&input_dev->protocol_resp, pipe_msg,
+ pipe_msg->size + sizeof(struct pipe_prt_msg) -
sizeof(unsigned char));
- inputDevice->protocol_wait_condition = 1;
- wake_up(&inputDevice->protocol_wait_event);
+ input_dev->protocol_wait_condition = 1;
+ wake_up(&input_dev->protocol_wait_event);
break;
case SynthHidInitialDeviceInfo:
- WARN_ON(pipeMsg->size >= sizeof(struct hv_input_dev_info));
+ WARN_ON(pipe_msg->size >= sizeof(struct hv_input_dev_info));
/*
* Parse out the device info into device attr,
* hid desc and report desc
*/
- mousevsc_on_receive_device_info(inputDevice,
- (struct synthhid_device_info *)&pipeMsg->data[0]);
+ mousevsc_on_receive_device_info(input_dev,
+ (struct synthhid_device_info *)&pipe_msg->data[0]);
break;
case SynthHidInputReport:
- mousevsc_on_receive_input_report(inputDevice,
- (struct synthhid_input_report *)&pipeMsg->data[0]);
+ mousevsc_on_receive_input_report(input_dev,
+ (struct synthhid_input_report *)&pipe_msg->data[0]);
break;
default:
pr_err("unsupported hid msg type - type %d len %d",
- hidMsg->header.type, hidMsg->header.size);
+ hid_msg->header.type, hid_msg->header.size);
break;
}
const int packetSize = 0x100;
int ret = 0;
struct hv_device *device = (struct hv_device *)context;
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
- u32 bytesRecvd;
- u64 requestId;
+ u32 bytes_recvd;
+ u64 req_id;
unsigned char packet[packetSize];
struct vmpacket_descriptor *desc;
unsigned char *buffer = packet;
int bufferlen = packetSize;
- inputDevice = must_get_input_device(device);
+ input_dev = must_get_input_device(device);
- if (!inputDevice) {
+ if (!input_dev) {
pr_err("unable to get input device...device being destroyed?");
return;
}
do {
- ret = vmbus_recvpacket_raw(device->channel, buffer, bufferlen, &bytesRecvd, &requestId);
+ ret = vmbus_recvpacket_raw(device->channel, buffer,
+ bufferlen, &bytes_recvd, &req_id);
if (ret == 0) {
- if (bytesRecvd > 0) {
+ if (bytes_recvd > 0) {
desc = (struct vmpacket_descriptor *)buffer;
switch (desc->type) {
default:
pr_err("unhandled packet type %d, tid %llx len %d\n",
desc->type,
- requestId,
- bytesRecvd);
+ req_id,
+ bytes_recvd);
break;
}
}
} else if (ret == -2) {
/* Handle large packet */
- bufferlen = bytesRecvd;
- buffer = kzalloc(bytesRecvd, GFP_KERNEL);
+ bufferlen = bytes_recvd;
+ buffer = kzalloc(bytes_recvd, GFP_KERNEL);
if (buffer == NULL) {
buffer = packet;
/* Try again next time around */
pr_err("unable to allocate buffer of size %d!",
- bytesRecvd);
+ bytes_recvd);
break;
}
}
static int mousevsc_connect_to_vsp(struct hv_device *device)
{
int ret = 0;
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
struct mousevsc_prt_msg *request;
struct mousevsc_prt_msg *response;
- inputDevice = get_input_device(device);
+ input_dev = get_input_device(device);
- if (!inputDevice) {
+ if (!input_dev) {
pr_err("unable to get input device...device being destroyed?");
return -1;
}
- init_waitqueue_head(&inputDevice->protocol_wait_event);
- init_waitqueue_head(&inputDevice->dev_info_wait_event);
+ init_waitqueue_head(&input_dev->protocol_wait_event);
+ init_waitqueue_head(&input_dev->dev_info_wait_event);
- request = &inputDevice->protocol_req;
+ request = &input_dev->protocol_req;
/*
* Now, initiate the vsc/vsp initialization protocol on the open channel
goto Cleanup;
}
- inputDevice->protocol_wait_condition = 0;
- wait_event_timeout(inputDevice->protocol_wait_event,
- inputDevice->protocol_wait_condition, msecs_to_jiffies(1000));
- if (inputDevice->protocol_wait_condition == 0) {
+ input_dev->protocol_wait_condition = 0;
+ wait_event_timeout(input_dev->protocol_wait_event,
+ input_dev->protocol_wait_condition, msecs_to_jiffies(1000));
+ if (input_dev->protocol_wait_condition == 0) {
ret = -ETIMEDOUT;
goto Cleanup;
}
- response = &inputDevice->protocol_resp;
+ response = &input_dev->protocol_resp;
if (!response->response.approved) {
pr_err("synthhid protocol request failed (version %d)",
goto Cleanup;
}
- inputDevice->device_wait_condition = 0;
- wait_event_timeout(inputDevice->dev_info_wait_event,
- inputDevice->device_wait_condition, msecs_to_jiffies(1000));
- if (inputDevice->device_wait_condition == 0) {
+ input_dev->device_wait_condition = 0;
+ wait_event_timeout(input_dev->dev_info_wait_event,
+ input_dev->device_wait_condition, msecs_to_jiffies(1000));
+ if (input_dev->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->dev_info_status)
+ if (!input_dev->dev_info_status)
pr_info("**** input channel up and running!! ****");
else
ret = -1;
void *additional_info)
{
int ret = 0;
- struct mousevsc_dev *inputDevice;
- struct mousevsc_drv_obj *inputDriver;
+ struct mousevsc_dev *input_dev;
+ struct mousevsc_drv_obj *input_drv;
struct hv_input_dev_info dev_info;
- inputDevice = alloc_input_device(device);
+ input_dev = alloc_input_device(device);
- if (!inputDevice) {
+ if (!input_dev) {
ret = -1;
goto Cleanup;
}
- inputDevice->init_complete = false;
+ input_dev->init_complete = false;
/* Open the channel */
ret = vmbus_open(device->channel,
if (ret != 0) {
pr_err("unable to open channel: %d", ret);
- free_input_device(inputDevice);
+ free_input_device(input_dev);
return -1;
}
pr_err("unable to connect channel: %d", ret);
vmbus_close(device->channel);
- free_input_device(inputDevice);
+ free_input_device(input_dev);
return ret;
}
- inputDriver = (struct mousevsc_drv_obj *)inputDevice->device->drv;
+ input_drv = (struct mousevsc_drv_obj *)input_dev->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;
+ dev_info.vendor = input_dev->hid_dev_info.vendor;
+ dev_info.product = input_dev->hid_dev_info.product;
+ dev_info.version = input_dev->hid_dev_info.version;
strcpy(dev_info.name, "Microsoft Vmbus HID-compliant Mouse");
/* Send the device info back up */
/* Send the report desc back up */
/* workaround SA-167 */
- if (inputDevice->report_desc[14] == 0x25)
- inputDevice->report_desc[14] = 0x29;
+ if (input_dev->report_desc[14] == 0x25)
+ input_dev->report_desc[14] = 0x29;
- reportdesc_callback(device, inputDevice->report_desc,
- inputDevice->report_desc_size);
+ reportdesc_callback(device, input_dev->report_desc,
+ input_dev->report_desc_size);
- inputDevice->init_complete = true;
+ input_dev->init_complete = true;
Cleanup:
return ret;
static int mousevsc_on_device_remove(struct hv_device *device)
{
- struct mousevsc_dev *inputDevice;
+ struct mousevsc_dev *input_dev;
int ret = 0;
pr_info("disabling input device (%p)...",
device->ext);
- inputDevice = release_input_device(device);
+ input_dev = release_input_device(device);
/*
*
* so that outstanding requests can be completed.
*/
- while (inputDevice->num_outstanding_req) {
+ while (input_dev->num_outstanding_req) {
pr_info("waiting for %d requests to complete...",
- inputDevice->num_outstanding_req);
+ input_dev->num_outstanding_req);
udelay(100);
}
pr_info("removing input device (%p)...", device->ext);
- inputDevice = final_release_input_device(device);
+ input_dev = final_release_input_device(device);
- pr_info("input device (%p) safe to remove", inputDevice);
+ pr_info("input device (%p) safe to remove", input_dev);
/* Close the channel */
vmbus_close(device->channel);
- free_input_device(inputDevice);
+ free_input_device(input_dev);
return ret;
}
static int mouse_vsc_initialize(struct hv_driver *driver)
{
- struct mousevsc_drv_obj *inputDriver =
+ struct mousevsc_drv_obj *input_drv =
(struct mousevsc_drv_obj *)driver;
int ret = 0;
sizeof(struct hv_guid));
/* Setup the dispatch table */
- inputDriver->base.dev_add = mousevsc_on_device_add;
- inputDriver->base.dev_rm = mousevsc_on_device_remove;
- inputDriver->base.cleanup = mousevsc_on_cleanup;
+ input_drv->base.dev_add = mousevsc_on_device_add;
+ input_drv->base.dev_rm = mousevsc_on_device_remove;
+ input_drv->base.cleanup = mousevsc_on_cleanup;
return ret;
}