diff options
| author | Vincent Palatin <vpalatin@chromium.org> | 2014-06-16 13:44:11 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-06-19 03:28:43 +0000 |
| commit | 17696e1470d152308ad39ac0ec1e61f82f4ff260 (patch) | |
| tree | 0658d2d0e2832a8b9cb4a9519fd6dcf44f0150d8 /include/usb_hid.h | |
| parent | 94acd01e0c4e9cb9c31c6b6d332d24bb352d669c (diff) | |
| download | chrome-ec-17696e1470d152308ad39ac0ec1e61f82f4ff260.tar.gz | |
usb: add USB HID driver
Add a USB HID endpoint providing a keyboard interface.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=build for the Reston keyboard and press keys on the matrix.
Change-Id: I3f4cc55acdd33286f0638dabaa9050c37698404f
Reviewed-on: https://chromium-review.googlesource.com/204166
Reviewed-by: Vic Yang <victoryang@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'include/usb_hid.h')
| -rw-r--r-- | include/usb_hid.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/usb_hid.h b/include/usb_hid.h new file mode 100644 index 0000000000..89ec887342 --- /dev/null +++ b/include/usb_hid.h @@ -0,0 +1,45 @@ +/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * USB HID definitions. + */ + +#ifndef USB_HID_H +#define USB_HID_H + +#define USB_HID_SUBCLASS_BOOT 1 +#define USB_HID_PROTOCOL_KEYBOARD 1 +#define USB_HID_PROTOCOL_MOUSE 2 + +/* USB HID Class requests */ +#define USB_HID_REQ_GET_REPORT 0x01 +#define USB_HID_REQ_GET_IDLE 0x02 +#define USB_HID_REQ_GET_PROTOCOL 0x03 +#define USB_HID_REQ_SET_REPORT 0x09 +#define USB_HID_REQ_SET_IDLE 0x0A +#define USB_HID_REQ_SET_PROTOCOL 0x0B + +/* USB HID class descriptor types */ +#define USB_HID_DT_HID (USB_TYPE_CLASS | 0x01) +#define USB_HID_DT_REPORT (USB_TYPE_CLASS | 0x02) +#define USB_HID_DT_PHYSICAL (USB_TYPE_CLASS | 0x03) + +struct usb_hid_class_descriptor { + uint8_t bDescriptorType; + uint16_t wDescriptorLength; +} __packed; + +struct usb_hid_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t bcdHID; + uint8_t bCountryCode; + uint8_t bNumDescriptors; + struct usb_hid_class_descriptor desc[1]; +} __packed; + +/* class implementation interfaces */ +void set_keyboard_report(uint64_t rpt); + +#endif /* USB_H */ |