From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/hid/usbhid/usbhid.h | 110 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 drivers/hid/usbhid/usbhid.h (limited to 'drivers/hid/usbhid/usbhid.h') diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h new file mode 100644 index 000000000..caa0ee639 --- /dev/null +++ b/drivers/hid/usbhid/usbhid.h @@ -0,0 +1,110 @@ +#ifndef __USBHID_H +#define __USBHID_H + +/* + * Copyright (c) 1999 Andreas Gal + * Copyright (c) 2000-2001 Vojtech Pavlik + * Copyright (c) 2006 Jiri Kosina + */ + +/* + * 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. + * + * This program is distributed in the hope that 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +/* API provided by hid-core.c for USB HID drivers */ +void usbhid_init_reports(struct hid_device *hid); +struct usb_interface *usbhid_find_interface(int minor); + +/* iofl flags */ +#define HID_CTRL_RUNNING 1 +#define HID_OUT_RUNNING 2 +#define HID_IN_RUNNING 3 +#define HID_RESET_PENDING 4 +#define HID_SUSPENDED 5 +#define HID_CLEAR_HALT 6 +#define HID_DISCONNECTED 7 +#define HID_STARTED 8 +#define HID_KEYS_PRESSED 10 +#define HID_NO_BANDWIDTH 11 +#define HID_RESUME_RUNNING 12 +/* + * The device is opened, meaning there is a client that is interested + * in data coming from the device. + */ +#define HID_OPENED 13 +/* + * We are polling input endpoint by [re]submitting IN URB, because + * either HID device is opened or ALWAYS POLL quirk is set for the + * device. + */ +#define HID_IN_POLLING 14 + +/* + * USB-specific HID struct, to be pointed to + * from struct hid_device->driver_data + */ + +struct usbhid_device { + struct hid_device *hid; /* pointer to corresponding HID dev */ + + struct usb_interface *intf; /* USB interface */ + int ifnum; /* USB interface number */ + + unsigned int bufsize; /* URB buffer size */ + + struct urb *urbin; /* Input URB */ + char *inbuf; /* Input buffer */ + dma_addr_t inbuf_dma; /* Input buffer dma */ + + struct urb *urbctrl; /* Control URB */ + struct usb_ctrlrequest *cr; /* Control request struct */ + struct hid_control_fifo ctrl[HID_CONTROL_FIFO_SIZE]; /* Control fifo */ + unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */ + char *ctrlbuf; /* Control buffer */ + dma_addr_t ctrlbuf_dma; /* Control buffer dma */ + unsigned long last_ctrl; /* record of last output for timeouts */ + + struct urb *urbout; /* Output URB */ + struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */ + unsigned char outhead, outtail; /* Output pipe fifo head & tail */ + char *outbuf; /* Output buffer */ + dma_addr_t outbuf_dma; /* Output buffer dma */ + unsigned long last_out; /* record of last output for timeouts */ + + struct mutex mutex; /* start/stop/open/close */ + spinlock_t lock; /* fifo spinlock */ + unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */ + struct timer_list io_retry; /* Retry timer */ + unsigned long stop_retry; /* Time to give up, in jiffies */ + unsigned int retry_delay; /* Delay length in ms */ + struct work_struct reset_work; /* Task context for resets */ + wait_queue_head_t wait; /* For sleeping */ +}; + +#define hid_to_usb_dev(hid_dev) \ + to_usb_device(hid_dev->dev.parent->parent) + +#endif + -- cgit v1.2.3