#include <linux/input.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
-#include <linux/pci.h>
-#include <linux/dmi.h>
#include "hyperv.h"
(SYNTHHID_INPUT_VERSION_MAJOR << 16))
-#pragma pack(push,1)
+#pragma pack(push, 1)
/*
* Message types in the synthetic input protocol
*/
#pragma pack(pop)
-#define INPUTVSC_SEND_RING_BUFFER_SIZE 10*PAGE_SIZE
-#define INPUTVSC_RECV_RING_BUFFER_SIZE 10*PAGE_SIZE
+#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)
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}
+struct input_device_context {
+ struct hv_device *device_ctx;
+ struct hid_device *hid_device;
+ struct hv_input_dev_info device_info;
+ int connected;
};
-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 *alloc_input_device(struct hv_device *device)
{
struct mousevsc_dev *input_dev;
if (!input_device->hid_desc) {
pr_err("unable to allocate hid descriptor - size %d", desc->bLength);
- goto Cleanup;
+ goto cleanup;
}
memcpy(input_device->hid_desc, desc, desc->bLength);
if (!input_device->report_desc) {
pr_err("unable to allocate report descriptor - size %d",
input_device->report_desc_size);
- goto Cleanup;
+ goto cleanup;
}
memcpy(input_device->report_desc,
if (ret != 0) {
pr_err("unable to send synthhid device info ack - ret %d",
ret);
- goto Cleanup;
+ goto cleanup;
}
input_device->device_wait_condition = 1;
return;
-Cleanup:
+cleanup:
kfree(input_device->hid_desc);
input_device->hid_desc = NULL;
struct synthhid_input_report *input_report)
{
struct hv_driver *input_drv;
+ struct input_device_context *input_dev_ctx;
if (!input_device->init_complete) {
pr_info("Initialization incomplete...ignoring input_report msg");
input_drv = drv_to_hv_drv(input_device->device->device.driver);
- inputreport_callback(input_device->device,
- input_report->buffer,
- input_report->header.size);
+ input_dev_ctx = dev_get_drvdata(&input_device->device->device);
+
+ hid_input_report(input_dev_ctx->hid_device,
+ HID_INPUT_REPORT, input_report->buffer, input_report->header.size, 1);
+
}
static void mousevsc_on_receive(struct hv_device *device,
desc = (struct vmpacket_descriptor *)buffer;
switch (desc->type) {
- case VM_PKT_COMP:
- mousevsc_on_send_completion(
- device, desc);
- break;
-
- case VM_PKT_DATA_INBAND:
- mousevsc_on_receive(
- device, desc);
- break;
-
- default:
- pr_err("unhandled packet type %d, tid %llx len %d\n",
- desc->type,
- req_id,
- bytes_recvd);
- break;
+ case VM_PKT_COMP:
+ mousevsc_on_send_completion(
+ device, desc);
+ break;
+
+ case VM_PKT_DATA_INBAND:
+ mousevsc_on_receive(
+ device, desc);
+ break;
+
+ default:
+ pr_err("unhandled packet type %d, tid %llx len %d\n",
+ desc->type,
+ req_id,
+ bytes_recvd);
+ break;
}
/* reset */
}
break;
}
- } else if (ret == -2) {
+ } else if (ret == -ENOBUFS) {
/* Handle large packet */
bufferlen = bytes_recvd;
buffer = kzalloc(bytes_recvd, GFP_KERNEL);
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret != 0) {
pr_err("unable to send synthhid protocol request.");
- goto Cleanup;
+ goto cleanup;
}
input_dev->protocol_wait_condition = 0;
input_dev->protocol_wait_condition, msecs_to_jiffies(1000));
if (input_dev->protocol_wait_condition == 0) {
ret = -ETIMEDOUT;
- goto Cleanup;
+ goto cleanup;
}
response = &input_dev->protocol_resp;
pr_err("synthhid protocol request failed (version %d)",
SYNTHHID_INPUT_VERSION);
ret = -1;
- goto Cleanup;
+ goto cleanup;
}
input_dev->device_wait_condition = 0;
input_dev->device_wait_condition, msecs_to_jiffies(1000));
if (input_dev->device_wait_condition == 0) {
ret = -ETIMEDOUT;
- goto Cleanup;
+ goto cleanup;
}
/*
else
ret = -1;
-Cleanup:
+cleanup:
put_input_device(device);
return ret;
}
+static int mousevsc_hid_open(struct hid_device *hid)
+{
+ return 0;
+}
+
+static void mousevsc_hid_close(struct hid_device *hid)
+{
+}
+
+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_on_device_add(struct hv_device *device,
void *additional_info)
{
struct mousevsc_dev *input_dev;
struct hv_driver *input_drv;
struct hv_input_dev_info dev_info;
+ struct input_device_context *input_device_ctx;
input_dev = alloc_input_device(device);
if (!input_dev) {
ret = -1;
- goto Cleanup;
+ goto cleanup;
}
input_dev->init_complete = false;
strcpy(dev_info.name, "Microsoft Vmbus HID-compliant Mouse");
/* Send the device info back up */
- deviceinfo_callback(device, &dev_info);
+ input_device_ctx = dev_get_drvdata(&device->device);
+ memcpy(&input_device_ctx->device_info, &dev_info,
+ sizeof(struct hv_input_dev_info));
/* Send the report desc back up */
/* workaround SA-167 */
input_dev->init_complete = true;
-Cleanup:
+cleanup:
return ret;
}
}
-/*
- * 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 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 hv_device *dev)
{
int ret = 0;
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 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) },
+ { },
+};
+/*
+ * The mouse driver is not functional; do not auto-load it.
+ */
+/* MODULE_DEVICE_TABLE(vmbus, id_table); */
static struct hv_driver mousevsc_drv = {
+ .name = "mousevsc",
+ .id_table = id_table,
.probe = mousevsc_probe,
.remove = mousevsc_remove,
};
-static void mousevsc_drv_exit(void)
-{
- vmbus_child_driver_unregister(&mousevsc_drv.driver);
-}
-
static int __init mousevsc_init(void)
{
- struct hv_driver *drv = &mousevsc_drv;
-
- DPRINT_INFO(INPUTVSC_DRV, "Hyper-V Mouse driver initializing.");
-
- memcpy(&drv->dev_type, &mouse_guid,
- sizeof(struct hv_guid));
-
- drv->driver.name = driver_name;
-
- /* The driver belongs to vmbus */
- vmbus_child_driver_register(&drv->driver);
-
- return 0;
+ return vmbus_driver_register(&mousevsc_drv);
}
static void __exit mousevsc_exit(void)
{
- mousevsc_drv_exit();
+ vmbus_driver_unregister(&mousevsc_drv);
}
-/*
- * 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);
git.openpandora.org / pandora-kernel.git / blobdiff