mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 09:59:32 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: roccat: fix build failure if built as module HID: roccat: propagate special events of roccat hardware to userspace HID: Add the GYR4101US USB ID to hid-gyration HID: fix hid-roccat-kone for bin_attr API change
This commit is contained in:
commit
f45471cbda
9 changed files with 541 additions and 12 deletions
|
@ -347,6 +347,14 @@ config HID_QUANTA
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---help---
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Support for Quanta Optical Touch dual-touch panels.
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config HID_ROCCAT
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tristate "Roccat special event support"
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depends on USB_HID
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---help---
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Support for Roccat special events.
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Say Y here if you have a Roccat mouse or keyboard and want OSD or
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macro execution support.
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config HID_ROCCAT_KONE
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tristate "Roccat Kone Mouse support"
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depends on USB_HID
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@ -48,6 +48,7 @@ obj-$(CONFIG_HID_QUANTA) += hid-quanta.o
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obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o
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obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o
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obj-$(CONFIG_HID_PICOLCD) += hid-picolcd.o
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obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o
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obj-$(CONFIG_HID_ROCCAT_KONE) += hid-roccat-kone.o
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obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
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obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
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@ -1301,6 +1301,7 @@ static const struct hid_device_id hid_blacklist[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
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@ -73,6 +73,7 @@ static int gyration_event(struct hid_device *hdev, struct hid_field *field,
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static const struct hid_device_id gyration_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, gyration_devices);
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|
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@ -282,6 +282,7 @@
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#define USB_VENDOR_ID_GYRATION 0x0c16
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#define USB_DEVICE_ID_GYRATION_REMOTE 0x0002
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#define USB_DEVICE_ID_GYRATION_REMOTE_2 0x0003
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#define USB_DEVICE_ID_GYRATION_REMOTE_3 0x0008
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#define USB_VENDOR_ID_HAPP 0x078b
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#define USB_DEVICE_ID_UGCI_DRIVING 0x0010
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@ -37,6 +37,7 @@
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#include <linux/module.h>
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#include <linux/slab.h>
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#include "hid-ids.h"
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#include "hid-roccat.h"
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#include "hid-roccat-kone.h"
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static void kone_set_settings_checksum(struct kone_settings *settings)
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@ -263,7 +264,7 @@ static int kone_get_firmware_version(struct usb_device *usb_dev, int *result)
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return 0;
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}
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static ssize_t kone_sysfs_read_settings(struct kobject *kobj,
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static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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struct device *dev = container_of(kobj, struct device, kobj);
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@ -287,7 +288,7 @@ static ssize_t kone_sysfs_read_settings(struct kobject *kobj,
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* This function keeps values in kone_device up to date and assumes that in
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* case of error the old data is still valid
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*/
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static ssize_t kone_sysfs_write_settings(struct kobject *kobj,
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static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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struct device *dev = container_of(kobj, struct device, kobj);
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@ -342,31 +343,31 @@ static ssize_t kone_sysfs_read_profilex(struct kobject *kobj,
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return count;
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}
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static ssize_t kone_sysfs_read_profile1(struct kobject *kobj,
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static ssize_t kone_sysfs_read_profile1(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 1);
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}
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static ssize_t kone_sysfs_read_profile2(struct kobject *kobj,
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static ssize_t kone_sysfs_read_profile2(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 2);
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}
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static ssize_t kone_sysfs_read_profile3(struct kobject *kobj,
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static ssize_t kone_sysfs_read_profile3(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 3);
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}
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static ssize_t kone_sysfs_read_profile4(struct kobject *kobj,
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static ssize_t kone_sysfs_read_profile4(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 4);
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}
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static ssize_t kone_sysfs_read_profile5(struct kobject *kobj,
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static ssize_t kone_sysfs_read_profile5(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 5);
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@ -404,31 +405,31 @@ static ssize_t kone_sysfs_write_profilex(struct kobject *kobj,
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return sizeof(struct kone_profile);
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}
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static ssize_t kone_sysfs_write_profile1(struct kobject *kobj,
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static ssize_t kone_sysfs_write_profile1(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 1);
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}
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static ssize_t kone_sysfs_write_profile2(struct kobject *kobj,
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static ssize_t kone_sysfs_write_profile2(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 2);
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}
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static ssize_t kone_sysfs_write_profile3(struct kobject *kobj,
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static ssize_t kone_sysfs_write_profile3(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 3);
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}
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static ssize_t kone_sysfs_write_profile4(struct kobject *kobj,
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static ssize_t kone_sysfs_write_profile4(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 4);
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}
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static ssize_t kone_sysfs_write_profile5(struct kobject *kobj,
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static ssize_t kone_sysfs_write_profile5(struct file *fp, struct kobject *kobj,
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struct bin_attribute *attr, char *buf,
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loff_t off, size_t count) {
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return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 5);
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@ -849,6 +850,16 @@ static int kone_init_specials(struct hid_device *hdev)
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"couldn't init struct kone_device\n");
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goto exit_free;
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}
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retval = roccat_connect(hdev);
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if (retval < 0) {
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dev_err(&hdev->dev, "couldn't init char dev\n");
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/* be tolerant about not getting chrdev */
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} else {
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kone->roccat_claimed = 1;
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kone->chrdev_minor = retval;
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}
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retval = kone_create_sysfs_attributes(intf);
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if (retval) {
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dev_err(&hdev->dev, "cannot create sysfs files\n");
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@ -868,10 +879,14 @@ static int kone_init_specials(struct hid_device *hdev)
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static void kone_remove_specials(struct hid_device *hdev)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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struct kone_device *kone;
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if (intf->cur_altsetting->desc.bInterfaceProtocol
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== USB_INTERFACE_PROTOCOL_MOUSE) {
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kone_remove_sysfs_attributes(intf);
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kone = hid_get_drvdata(hdev);
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if (kone->roccat_claimed)
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roccat_disconnect(kone->chrdev_minor);
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kfree(hid_get_drvdata(hdev));
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}
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}
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@ -930,6 +945,37 @@ static void kone_keep_values_up_to_date(struct kone_device *kone,
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}
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}
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static void kone_report_to_chrdev(struct kone_device const *kone,
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struct kone_mouse_event const *event)
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{
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struct kone_roccat_report roccat_report;
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switch (event->event) {
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case kone_mouse_event_switch_profile:
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case kone_mouse_event_switch_dpi:
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case kone_mouse_event_osd_profile:
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case kone_mouse_event_osd_dpi:
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roccat_report.event = event->event;
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roccat_report.value = event->value;
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roccat_report.key = 0;
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roccat_report_event(kone->chrdev_minor,
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(uint8_t *)&roccat_report,
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sizeof(struct kone_roccat_report));
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break;
|
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case kone_mouse_event_call_overlong_macro:
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if (event->value == kone_keystroke_action_press) {
|
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roccat_report.event = kone_mouse_event_call_overlong_macro;
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roccat_report.value = kone->actual_profile;
|
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roccat_report.key = event->macro_key;
|
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roccat_report_event(kone->chrdev_minor,
|
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(uint8_t *)&roccat_report,
|
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sizeof(struct kone_roccat_report));
|
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}
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Is called for keyboard- and mousepart.
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* Only mousepart gets informations about special events in its extended event
|
||||
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@ -958,6 +1004,9 @@ static int kone_raw_event(struct hid_device *hdev, struct hid_report *report,
|
|||
|
||||
kone_keep_values_up_to_date(kone, event);
|
||||
|
||||
if (kone->roccat_claimed)
|
||||
kone_report_to_chrdev(kone, event);
|
||||
|
||||
return 0; /* always do further processing */
|
||||
}
|
||||
|
||||
|
|
|
@ -189,6 +189,12 @@ enum kone_commands {
|
|||
kone_command_firmware = 0xe5a
|
||||
};
|
||||
|
||||
struct kone_roccat_report {
|
||||
uint8_t event;
|
||||
uint8_t value; /* holds dpi or profile value */
|
||||
uint8_t key; /* macro key on overlong macro execution */
|
||||
};
|
||||
|
||||
#pragma pack(pop)
|
||||
|
||||
struct kone_device {
|
||||
|
@ -219,6 +225,9 @@ struct kone_device {
|
|||
* so it's read only once
|
||||
*/
|
||||
int firmware_version;
|
||||
|
||||
int roccat_claimed;
|
||||
int chrdev_minor;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
428
drivers/hid/hid-roccat.c
Normal file
428
drivers/hid/hid-roccat.c
Normal file
|
@ -0,0 +1,428 @@
|
|||
/*
|
||||
* Roccat driver for Linux
|
||||
*
|
||||
* Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
*/
|
||||
|
||||
/*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the Free
|
||||
* Software Foundation; either version 2 of the License, or (at your option)
|
||||
* any later version.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Module roccat is a char device used to report special events of roccat
|
||||
* hardware to userland. These events include requests for on-screen-display of
|
||||
* profile or dpi settings or requests for execution of macro sequences that are
|
||||
* not stored in device. The information in these events depends on hid device
|
||||
* implementation and contains data that is not available in a single hid event
|
||||
* or else hidraw could have been used.
|
||||
* It is inspired by hidraw, but uses only one circular buffer for all readers.
|
||||
*/
|
||||
|
||||
#include <linux/cdev.h>
|
||||
#include <linux/poll.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include "hid-roccat.h"
|
||||
|
||||
#define ROCCAT_FIRST_MINOR 0
|
||||
#define ROCCAT_MAX_DEVICES 8
|
||||
|
||||
/* should be a power of 2 for performance reason */
|
||||
#define ROCCAT_CBUF_SIZE 16
|
||||
|
||||
struct roccat_report {
|
||||
uint8_t *value;
|
||||
int len;
|
||||
};
|
||||
|
||||
struct roccat_device {
|
||||
unsigned int minor;
|
||||
int open;
|
||||
int exist;
|
||||
wait_queue_head_t wait;
|
||||
struct device *dev;
|
||||
struct hid_device *hid;
|
||||
struct list_head readers;
|
||||
/* protects modifications of readers list */
|
||||
struct mutex readers_lock;
|
||||
|
||||
/*
|
||||
* circular_buffer has one writer and multiple readers with their own
|
||||
* read pointers
|
||||
*/
|
||||
struct roccat_report cbuf[ROCCAT_CBUF_SIZE];
|
||||
int cbuf_end;
|
||||
struct mutex cbuf_lock;
|
||||
};
|
||||
|
||||
struct roccat_reader {
|
||||
struct list_head node;
|
||||
struct roccat_device *device;
|
||||
int cbuf_start;
|
||||
};
|
||||
|
||||
static int roccat_major;
|
||||
static struct class *roccat_class;
|
||||
static struct cdev roccat_cdev;
|
||||
|
||||
static struct roccat_device *devices[ROCCAT_MAX_DEVICES];
|
||||
/* protects modifications of devices array */
|
||||
static DEFINE_MUTEX(devices_lock);
|
||||
|
||||
static ssize_t roccat_read(struct file *file, char __user *buffer,
|
||||
size_t count, loff_t *ppos)
|
||||
{
|
||||
struct roccat_reader *reader = file->private_data;
|
||||
struct roccat_device *device = reader->device;
|
||||
struct roccat_report *report;
|
||||
ssize_t retval = 0, len;
|
||||
DECLARE_WAITQUEUE(wait, current);
|
||||
|
||||
mutex_lock(&device->cbuf_lock);
|
||||
|
||||
/* no data? */
|
||||
if (reader->cbuf_start == device->cbuf_end) {
|
||||
add_wait_queue(&device->wait, &wait);
|
||||
set_current_state(TASK_INTERRUPTIBLE);
|
||||
|
||||
/* wait for data */
|
||||
while (reader->cbuf_start == device->cbuf_end) {
|
||||
if (file->f_flags & O_NONBLOCK) {
|
||||
retval = -EAGAIN;
|
||||
break;
|
||||
}
|
||||
if (signal_pending(current)) {
|
||||
retval = -ERESTARTSYS;
|
||||
break;
|
||||
}
|
||||
if (!device->exist) {
|
||||
retval = -EIO;
|
||||
break;
|
||||
}
|
||||
|
||||
mutex_unlock(&device->cbuf_lock);
|
||||
schedule();
|
||||
mutex_lock(&device->cbuf_lock);
|
||||
set_current_state(TASK_INTERRUPTIBLE);
|
||||
}
|
||||
|
||||
set_current_state(TASK_RUNNING);
|
||||
remove_wait_queue(&device->wait, &wait);
|
||||
}
|
||||
|
||||
/* here we either have data or a reason to return if retval is set */
|
||||
if (retval)
|
||||
goto exit_unlock;
|
||||
|
||||
report = &device->cbuf[reader->cbuf_start];
|
||||
/*
|
||||
* If report is larger than requested amount of data, rest of report
|
||||
* is lost!
|
||||
*/
|
||||
len = report->len > count ? count : report->len;
|
||||
|
||||
if (copy_to_user(buffer, report->value, len)) {
|
||||
retval = -EFAULT;
|
||||
goto exit_unlock;
|
||||
}
|
||||
retval += len;
|
||||
reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
|
||||
|
||||
exit_unlock:
|
||||
mutex_unlock(&device->cbuf_lock);
|
||||
return retval;
|
||||
}
|
||||
|
||||
static unsigned int roccat_poll(struct file *file, poll_table *wait)
|
||||
{
|
||||
struct roccat_reader *reader = file->private_data;
|
||||
poll_wait(file, &reader->device->wait, wait);
|
||||
if (reader->cbuf_start != reader->device->cbuf_end)
|
||||
return POLLIN | POLLRDNORM;
|
||||
if (!reader->device->exist)
|
||||
return POLLERR | POLLHUP;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int roccat_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
unsigned int minor = iminor(inode);
|
||||
struct roccat_reader *reader;
|
||||
struct roccat_device *device;
|
||||
int error = 0;
|
||||
|
||||
reader = kzalloc(sizeof(struct roccat_reader), GFP_KERNEL);
|
||||
if (!reader)
|
||||
return -ENOMEM;
|
||||
|
||||
mutex_lock(&devices_lock);
|
||||
|
||||
device = devices[minor];
|
||||
|
||||
mutex_lock(&device->readers_lock);
|
||||
|
||||
if (!device) {
|
||||
printk(KERN_EMERG "roccat device with minor %d doesn't exist\n",
|
||||
minor);
|
||||
error = -ENODEV;
|
||||
goto exit_unlock;
|
||||
}
|
||||
|
||||
if (!device->open++) {
|
||||
/* power on device on adding first reader */
|
||||
if (device->hid->ll_driver->power) {
|
||||
error = device->hid->ll_driver->power(device->hid,
|
||||
PM_HINT_FULLON);
|
||||
if (error < 0) {
|
||||
--device->open;
|
||||
goto exit_unlock;
|
||||
}
|
||||
}
|
||||
error = device->hid->ll_driver->open(device->hid);
|
||||
if (error < 0) {
|
||||
if (device->hid->ll_driver->power)
|
||||
device->hid->ll_driver->power(device->hid,
|
||||
PM_HINT_NORMAL);
|
||||
--device->open;
|
||||
goto exit_unlock;
|
||||
}
|
||||
}
|
||||
|
||||
reader->device = device;
|
||||
/* new reader doesn't get old events */
|
||||
reader->cbuf_start = device->cbuf_end;
|
||||
|
||||
list_add_tail(&reader->node, &device->readers);
|
||||
file->private_data = reader;
|
||||
|
||||
exit_unlock:
|
||||
mutex_unlock(&device->readers_lock);
|
||||
mutex_unlock(&devices_lock);
|
||||
return error;
|
||||
}
|
||||
|
||||
static int roccat_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
unsigned int minor = iminor(inode);
|
||||
struct roccat_reader *reader = file->private_data;
|
||||
struct roccat_device *device;
|
||||
|
||||
mutex_lock(&devices_lock);
|
||||
|
||||
device = devices[minor];
|
||||
if (!device) {
|
||||
mutex_unlock(&devices_lock);
|
||||
printk(KERN_EMERG "roccat device with minor %d doesn't exist\n",
|
||||
minor);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
mutex_lock(&device->readers_lock);
|
||||
list_del(&reader->node);
|
||||
mutex_unlock(&device->readers_lock);
|
||||
kfree(reader);
|
||||
|
||||
if (!--device->open) {
|
||||
/* removing last reader */
|
||||
if (device->exist) {
|
||||
if (device->hid->ll_driver->power)
|
||||
device->hid->ll_driver->power(device->hid,
|
||||
PM_HINT_NORMAL);
|
||||
device->hid->ll_driver->close(device->hid);
|
||||
} else {
|
||||
kfree(device);
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&devices_lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* roccat_report_event() - output data to readers
|
||||
* @minor: minor device number returned by roccat_connect()
|
||||
* @data: pointer to data
|
||||
* @len: size of data
|
||||
*
|
||||
* Return value is zero on success, a negative error code on failure.
|
||||
*
|
||||
* This is called from interrupt handler.
|
||||
*/
|
||||
int roccat_report_event(int minor, u8 const *data, int len)
|
||||
{
|
||||
struct roccat_device *device;
|
||||
struct roccat_reader *reader;
|
||||
struct roccat_report *report;
|
||||
uint8_t *new_value;
|
||||
|
||||
new_value = kmemdup(data, len, GFP_ATOMIC);
|
||||
if (!new_value)
|
||||
return -ENOMEM;
|
||||
|
||||
device = devices[minor];
|
||||
|
||||
report = &device->cbuf[device->cbuf_end];
|
||||
|
||||
/* passing NULL is safe */
|
||||
kfree(report->value);
|
||||
|
||||
report->value = new_value;
|
||||
report->len = len;
|
||||
device->cbuf_end = (device->cbuf_end + 1) % ROCCAT_CBUF_SIZE;
|
||||
|
||||
list_for_each_entry(reader, &device->readers, node) {
|
||||
/*
|
||||
* As we already inserted one element, the buffer can't be
|
||||
* empty. If start and end are equal, buffer is full and we
|
||||
* increase start, so that slow reader misses one event, but
|
||||
* gets the newer ones in the right order.
|
||||
*/
|
||||
if (reader->cbuf_start == device->cbuf_end)
|
||||
reader->cbuf_start = (reader->cbuf_start + 1) % ROCCAT_CBUF_SIZE;
|
||||
}
|
||||
|
||||
wake_up_interruptible(&device->wait);
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(roccat_report_event);
|
||||
|
||||
/*
|
||||
* roccat_connect() - create a char device for special event output
|
||||
* @hid: the hid device the char device should be connected to.
|
||||
*
|
||||
* Return value is minor device number in Range [0, ROCCAT_MAX_DEVICES] on
|
||||
* success, a negative error code on failure.
|
||||
*/
|
||||
int roccat_connect(struct hid_device *hid)
|
||||
{
|
||||
unsigned int minor;
|
||||
struct roccat_device *device;
|
||||
int temp;
|
||||
|
||||
device = kzalloc(sizeof(struct roccat_device), GFP_KERNEL);
|
||||
if (!device)
|
||||
return -ENOMEM;
|
||||
|
||||
mutex_lock(&devices_lock);
|
||||
|
||||
for (minor = 0; minor < ROCCAT_MAX_DEVICES; ++minor) {
|
||||
if (devices[minor])
|
||||
continue;
|
||||
break;
|
||||
}
|
||||
|
||||
if (minor < ROCCAT_MAX_DEVICES) {
|
||||
devices[minor] = device;
|
||||
} else {
|
||||
mutex_unlock(&devices_lock);
|
||||
kfree(device);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
device->dev = device_create(roccat_class, &hid->dev,
|
||||
MKDEV(roccat_major, minor), NULL,
|
||||
"%s%s%d", "roccat", hid->driver->name, minor);
|
||||
|
||||
if (IS_ERR(device->dev)) {
|
||||
devices[minor] = NULL;
|
||||
mutex_unlock(&devices_lock);
|
||||
temp = PTR_ERR(device->dev);
|
||||
kfree(device);
|
||||
return temp;
|
||||
}
|
||||
|
||||
mutex_unlock(&devices_lock);
|
||||
|
||||
init_waitqueue_head(&device->wait);
|
||||
INIT_LIST_HEAD(&device->readers);
|
||||
mutex_init(&device->readers_lock);
|
||||
mutex_init(&device->cbuf_lock);
|
||||
device->minor = minor;
|
||||
device->hid = hid;
|
||||
device->exist = 1;
|
||||
device->cbuf_end = 0;
|
||||
|
||||
return minor;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(roccat_connect);
|
||||
|
||||
/* roccat_disconnect() - remove char device from hid device
|
||||
* @minor: the minor device number returned by roccat_connect()
|
||||
*/
|
||||
void roccat_disconnect(int minor)
|
||||
{
|
||||
struct roccat_device *device;
|
||||
|
||||
mutex_lock(&devices_lock);
|
||||
device = devices[minor];
|
||||
devices[minor] = NULL;
|
||||
mutex_unlock(&devices_lock);
|
||||
|
||||
device->exist = 0; /* TODO exist maybe not needed */
|
||||
|
||||
device_destroy(roccat_class, MKDEV(roccat_major, minor));
|
||||
|
||||
if (device->open) {
|
||||
device->hid->ll_driver->close(device->hid);
|
||||
wake_up_interruptible(&device->wait);
|
||||
} else {
|
||||
kfree(device);
|
||||
}
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(roccat_disconnect);
|
||||
|
||||
static const struct file_operations roccat_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
.read = roccat_read,
|
||||
.poll = roccat_poll,
|
||||
.open = roccat_open,
|
||||
.release = roccat_release,
|
||||
};
|
||||
|
||||
static int __init roccat_init(void)
|
||||
{
|
||||
int retval;
|
||||
dev_t dev_id;
|
||||
|
||||
retval = alloc_chrdev_region(&dev_id, ROCCAT_FIRST_MINOR,
|
||||
ROCCAT_MAX_DEVICES, "roccat");
|
||||
|
||||
roccat_major = MAJOR(dev_id);
|
||||
|
||||
if (retval < 0) {
|
||||
printk(KERN_WARNING "roccat: can't get major number\n");
|
||||
return retval;
|
||||
}
|
||||
|
||||
roccat_class = class_create(THIS_MODULE, "roccat");
|
||||
if (IS_ERR(roccat_class)) {
|
||||
retval = PTR_ERR(roccat_class);
|
||||
unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
|
||||
return retval;
|
||||
}
|
||||
|
||||
cdev_init(&roccat_cdev, &roccat_ops);
|
||||
cdev_add(&roccat_cdev, dev_id, ROCCAT_MAX_DEVICES);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit roccat_exit(void)
|
||||
{
|
||||
dev_t dev_id = MKDEV(roccat_major, 0);
|
||||
|
||||
cdev_del(&roccat_cdev);
|
||||
class_destroy(roccat_class);
|
||||
unregister_chrdev_region(dev_id, ROCCAT_MAX_DEVICES);
|
||||
}
|
||||
|
||||
module_init(roccat_init);
|
||||
module_exit(roccat_exit);
|
||||
|
||||
MODULE_AUTHOR("Stefan Achatz");
|
||||
MODULE_DESCRIPTION("USB Roccat char device");
|
||||
MODULE_LICENSE("GPL v2");
|
31
drivers/hid/hid-roccat.h
Normal file
31
drivers/hid/hid-roccat.h
Normal file
|
@ -0,0 +1,31 @@
|
|||
#ifndef __HID_ROCCAT_H
|
||||
#define __HID_ROCCAT_H
|
||||
|
||||
/*
|
||||
* Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
|
||||
*/
|
||||
|
||||
/*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the Free
|
||||
* Software Foundation; either version 2 of the License, or (at your option)
|
||||
* any later version.
|
||||
*/
|
||||
|
||||
#include <linux/hid.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#if defined(CONFIG_HID_ROCCAT) || defined (CONFIG_HID_ROCCAT_MODULE)
|
||||
int roccat_connect(struct hid_device *hid);
|
||||
void roccat_disconnect(int minor);
|
||||
int roccat_report_event(int minor, u8 const *data, int len);
|
||||
#else
|
||||
static inline int roccat_connect(struct hid_device *hid) { return -1; }
|
||||
static inline void roccat_disconnect(int minor) {}
|
||||
static inline int roccat_report_event(int minor, u8 const *data, int len)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
Loading…
Reference in a new issue