512 lines
15 KiB
C
512 lines
15 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008-2010 coresystems GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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// #define USB_DEBUG
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#include <keycodes.h>
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#include <usb/usb.h>
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enum { hid_subclass_none = 0, hid_subclass_boot = 1 };
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typedef enum { hid_proto_boot = 0, hid_proto_report = 1 } hid_proto;
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enum { hid_boot_proto_none = 0, hid_boot_proto_keyboard =
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1, hid_boot_proto_mouse = 2
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};
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static const char *boot_protos[3] = { "(none)", "keyboard", "mouse" };
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enum { GET_REPORT = 0x1, GET_IDLE = 0x2, GET_PROTOCOL = 0x3, SET_REPORT =
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0x9, SET_IDLE = 0xa, SET_PROTOCOL = 0xb
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};
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typedef union {
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struct {
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u8 modifiers;
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u8 repeats;
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u8 keys[6];
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};
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u8 buffer[8];
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} usb_hid_keyboard_event_t;
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typedef struct {
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void* queue;
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hid_descriptor_t *descriptor;
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usb_hid_keyboard_event_t previous;
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int lastkeypress;
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int repeat_delay;
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} usbhid_inst_t;
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#define HID_INST(dev) ((usbhid_inst_t*)(dev)->data)
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static void
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usb_hid_destroy (usbdev_t *dev)
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{
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if (HID_INST(dev)->queue) {
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int i;
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for (i = 0; i <= dev->num_endp; i++) {
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if (dev->endpoints[i].endpoint == 0)
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continue;
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if (dev->endpoints[i].type != INTERRUPT)
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continue;
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if (dev->endpoints[i].direction != IN)
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continue;
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break;
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}
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dev->controller->destroy_intr_queue(
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&dev->endpoints[i], HID_INST(dev)->queue);
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HID_INST(dev)->queue = NULL;
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}
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free (dev->data);
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}
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/* keybuffer is global to all USB keyboards */
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static int keycount;
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#define KEYBOARD_BUFFER_SIZE 16
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static short keybuffer[KEYBOARD_BUFFER_SIZE];
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const char *countries[36][2] = {
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{ "not supported", "us" },
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{ "Arabic", "ae" },
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{ "Belgian", "be" },
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{ "Canadian-Bilingual", "ca" },
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{ "Canadian-French", "ca" },
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{ "Czech Republic", "cz" },
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{ "Danish", "dk" },
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{ "Finnish", "fi" },
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{ "French", "fr" },
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{ "German", "de" },
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{ "Greek", "gr" },
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{ "Hebrew", "il" },
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{ "Hungary", "hu" },
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{ "International (ISO)", "iso" },
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{ "Italian", "it" },
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{ "Japan (Katakana)", "jp" },
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{ "Korean", "us" },
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{ "Latin American", "us" },
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{ "Netherlands/Dutch", "nl" },
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{ "Norwegian", "no" },
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{ "Persian (Farsi)", "ir" },
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{ "Poland", "pl" },
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{ "Portuguese", "pt" },
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{ "Russia", "ru" },
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{ "Slovakia", "sl" },
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{ "Spanish", "es" },
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{ "Swedish", "se" },
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{ "Swiss/French", "ch" },
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{ "Swiss/German", "ch" },
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{ "Switzerland", "ch" },
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{ "Taiwan", "tw" },
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{ "Turkish-Q", "tr" },
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{ "UK", "uk" },
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{ "US", "us" },
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{ "Yugoslavia", "yu" },
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{ "Turkish-F", "tr" },
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/* 36 - 255: Reserved */
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};
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struct layout_maps {
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const char *country;
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const short map[4][0x80];
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};
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static const struct layout_maps *map;
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static const struct layout_maps keyboard_layouts[] = {
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// #if IS_ENABLED(CONFIG_LP_PC_KEYBOARD_LAYOUT_US)
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{ .country = "us", .map = {
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{ /* No modifier */
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-1, -1, -1, -1, 'a', 'b', 'c', 'd',
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'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
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/* 0x10 */
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'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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'u', 'v', 'w', 'x', 'y', 'z', '1', '2',
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/* 0x20 */
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'3', '4', '5', '6', '7', '8', '9', '0',
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'\n', '\e', '\b', '\t', ' ', '-', '=', '[',
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/* 0x30 */
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']', '\\', -1, ';', '\'', '`', ',', '.',
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'/', -1 /* CapsLk */, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6),
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/* 0x40 */
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KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), KEY_F(11), KEY_F(12), KEY_PRINT, -1 /* ScrLk */,
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KEY_BREAK, KEY_IC, KEY_HOME, KEY_PPAGE, KEY_DC, KEY_END, KEY_NPAGE, KEY_RIGHT,
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/* 50 */
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KEY_LEFT, KEY_DOWN, KEY_UP, -1 /*NumLck*/, '/', '*', '-' /* = ? */, '+',
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KEY_ENTER, KEY_END, KEY_DOWN, KEY_NPAGE, KEY_LEFT, -1, KEY_RIGHT, KEY_HOME,
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/* 60 */
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KEY_UP, KEY_PPAGE, -1, KEY_DC, -1 /* < > | */, -1 /* Win Key Right */, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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/* 70 */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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},
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{ /* Shift modifier */
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-1, -1, -1, -1, 'A', 'B', 'C', 'D',
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'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
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/* 0x10 */
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'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
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'U', 'V', 'W', 'X', 'Y', 'Z', '!', '@',
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/* 0x20 */
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'#', '$', '%', '^', '&', '*', '(', ')',
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'\n', '\e', '\b', '\t', ' ', '_', '+', '[',
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/* 0x30 */
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']', '\\', -1, ':', '\'', '`', ',', '.',
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'/', -1 /* CapsLk */, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6),
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/* 0x40 */
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KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), KEY_F(11), KEY_F(12), KEY_PRINT, -1 /* ScrLk */,
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KEY_BREAK, KEY_IC, KEY_HOME, KEY_PPAGE, KEY_DC, KEY_END, KEY_NPAGE, KEY_RIGHT,
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/* 50 */
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KEY_LEFT, KEY_DOWN, KEY_UP, -1 /*NumLck*/, '/', '*', '-' /* = ? */, '+',
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KEY_ENTER, KEY_END, KEY_DOWN, KEY_NPAGE, KEY_LEFT, -1, KEY_RIGHT, KEY_HOME,
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/* 60 */
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KEY_UP, KEY_PPAGE, -1, KEY_DC, -1 /* < > | */, -1 /* Win Key Right */, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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/* 70 */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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},
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{ /* Alt */
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-1, -1, -1, -1, 'a', 'b', 'c', 'd',
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'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
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/* 0x10 */
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'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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'u', 'v', 'w', 'x', 'y', 'z', '1', '2',
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/* 0x20 */
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'3', '4', '5', '6', '7', '8', '9', '0',
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'\n', '\e', '\b', '\t', ' ', '-', '=', '[',
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/* 0x30 */
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']', '\\', -1, ';', '\'', '`', ',', '.',
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'/', -1 /* CapsLk */, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6),
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/* 0x40 */
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KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), KEY_F(11), KEY_F(12), KEY_PRINT, -1 /* ScrLk */,
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KEY_BREAK, KEY_IC, KEY_HOME, KEY_PPAGE, KEY_DC, KEY_END, KEY_NPAGE, KEY_RIGHT,
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/* 50 */
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KEY_LEFT, KEY_DOWN, KEY_UP, -1 /*NumLck*/, '/', '*', '-' /* = ? */, '+',
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KEY_ENTER, KEY_END, KEY_DOWN, KEY_NPAGE, KEY_LEFT, -1, KEY_RIGHT, KEY_HOME,
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/* 60 */
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KEY_UP, KEY_PPAGE, -1, KEY_DC, -1 /* < > | */, -1 /* Win Key Right */, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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/* 70 */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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},
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{ /* Shift+Alt modifier */
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-1, -1, -1, -1, 'A', 'B', 'C', 'D',
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'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
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/* 0x10 */
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'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
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'U', 'V', 'W', 'X', 'Y', 'Z', '!', '@',
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/* 0x20 */
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'#', '$', '%', '^', '&', '*', '(', ')',
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'\n', '\e', '\b', '\t', ' ', '-', '=', '[',
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/* 0x30 */
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']', '\\', -1, ':', '\'', '`', ',', '.',
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'/', -1 /* CapsLk */, KEY_F(1), KEY_F(2), KEY_F(3), KEY_F(4), KEY_F(5), KEY_F(6),
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/* 0x40 */
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KEY_F(7), KEY_F(8), KEY_F(9), KEY_F(10), KEY_F(11), KEY_F(12), KEY_PRINT, -1 /* ScrLk */,
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KEY_BREAK, KEY_IC, KEY_HOME, KEY_PPAGE, KEY_DC, KEY_END, KEY_NPAGE, KEY_RIGHT,
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/* 50 */
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KEY_LEFT, KEY_DOWN, KEY_UP, -1 /*NumLck*/, '/', '*', '-' /* = ? */, '+',
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KEY_ENTER, KEY_END, KEY_DOWN, KEY_NPAGE, KEY_LEFT, -1, KEY_RIGHT, KEY_HOME,
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/* 60 */
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KEY_UP, KEY_PPAGE, -1, KEY_DC, -1 /* < > | */, -1 /* Win Key Right */, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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/* 70 */
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-1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1,
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}
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}},
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//#endif
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};
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#define MOD_SHIFT (1 << 0)
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#define MOD_ALT (1 << 1)
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#define MOD_CTRL (1 << 2)
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static void usb_hid_keyboard_queue(int ch) {
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/* ignore key presses if buffer full */
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if (keycount < KEYBOARD_BUFFER_SIZE)
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keybuffer[keycount++] = ch;
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}
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#define KEYBOARD_REPEAT_MS 30
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#define INITIAL_REPEAT_DELAY 10
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#define REPEAT_DELAY 2
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static void
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usb_hid_process_keyboard_event(usbhid_inst_t *const inst,
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const usb_hid_keyboard_event_t *const current)
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{
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const usb_hid_keyboard_event_t *const previous = &inst->previous;
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int i, keypress = 0, modifiers = 0;
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if (current->modifiers & 0x01) /* Left-Ctrl */ modifiers |= MOD_CTRL;
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if (current->modifiers & 0x02) /* Left-Shift */ modifiers |= MOD_SHIFT;
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if (current->modifiers & 0x04) /* Left-Alt */ modifiers |= MOD_ALT;
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if (current->modifiers & 0x08) /* Left-GUI */ ;
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if (current->modifiers & 0x10) /* Right-Ctrl */ modifiers |= MOD_CTRL;
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if (current->modifiers & 0x20) /* Right-Shift */ modifiers |= MOD_SHIFT;
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if (current->modifiers & 0x40) /* Right-AltGr */ modifiers |= MOD_ALT;
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if (current->modifiers & 0x80) /* Right-GUI */ ;
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if ((current->modifiers & 0x05) && ((current->keys[0] == 0x4c) ||
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(current->keys[0]==0x63))) {
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/* vulcan nerve pinch */
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if (reset_handler)
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reset_handler();
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}
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/* Did the event change at all? */
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if (inst->lastkeypress &&
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!memcmp(current, previous, sizeof(*current))) {
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/* No. Then it's a key repeat event. */
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if (inst->repeat_delay) {
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inst->repeat_delay--;
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} else {
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usb_hid_keyboard_queue(inst->lastkeypress);
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inst->repeat_delay = REPEAT_DELAY;
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}
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return;
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}
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inst->lastkeypress = 0;
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for (i=0; i<6; i++) {
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int j;
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int skip = 0;
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// No more keys? skip
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if (current->keys[i] == 0)
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return;
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for (j=0; j<6; j++) {
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if (current->keys[i] == previous->keys[j]) {
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skip = 1;
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break;
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}
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}
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if (skip)
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continue;
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/* Mask off MOD_CTRL */
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keypress = map->map[modifiers & 0x03][current->keys[i]];
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if (modifiers & MOD_CTRL) {
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switch (keypress) {
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case 'a' ... 'z':
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keypress &= 0x1f;
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break;
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default:
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continue;
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}
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}
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if (keypress == -1) {
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/* Debug: Print unknown keys */
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usb_debug ("usbhid: <%x> %x [ %x %x %x %x %x %x ] %d\n",
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current->modifiers, current->repeats,
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current->keys[0], current->keys[1],
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current->keys[2], current->keys[3],
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current->keys[4], current->keys[5], i);
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/* Unknown key? Try next one in the queue */
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continue;
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}
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usb_hid_keyboard_queue(keypress);
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/* Remember for authentic key repeat */
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inst->lastkeypress = keypress;
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inst->repeat_delay = INITIAL_REPEAT_DELAY;
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}
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}
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static void
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usb_hid_poll (usbdev_t *dev)
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{
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usb_hid_keyboard_event_t current;
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const u8 *buf;
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while ((buf=dev->controller->poll_intr_queue (HID_INST(dev)->queue))) {
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memcpy(¤t.buffer, buf, 8);
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usb_hid_process_keyboard_event(HID_INST(dev), ¤t);
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HID_INST(dev)->previous = current;
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}
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}
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static void
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usb_hid_set_idle (usbdev_t *dev, interface_descriptor_t *interface, u16 duration)
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{
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dev_req_t dr;
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dr.data_dir = host_to_device;
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dr.req_type = class_type;
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dr.req_recp = iface_recp;
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dr.bRequest = SET_IDLE;
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dr.wValue = (duration >> 2) << 8;
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dr.wIndex = interface->bInterfaceNumber;
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dr.wLength = 0;
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dev->controller->control (dev, OUT, sizeof (dev_req_t), &dr, 0, 0);
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}
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static void
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usb_hid_set_protocol (usbdev_t *dev, interface_descriptor_t *interface, hid_proto proto)
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{
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dev_req_t dr;
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dr.data_dir = host_to_device;
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dr.req_type = class_type;
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dr.req_recp = iface_recp;
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dr.bRequest = SET_PROTOCOL;
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dr.wValue = proto;
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dr.wIndex = interface->bInterfaceNumber;
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dr.wLength = 0;
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dev->controller->control (dev, OUT, sizeof (dev_req_t), &dr, 0, 0);
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}
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static struct console_input_driver cons = {
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.havekey = usbhid_havechar,
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.getchar = usbhid_getchar,
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.input_type = CONSOLE_INPUT_TYPE_USB,
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};
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static int usb_hid_set_layout (const char *country)
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{
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/* FIXME should be per keyboard */
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int i;
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for (i=0; i<ARRAY_SIZE(keyboard_layouts); i++) {
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if (strncmp(keyboard_layouts[i].country, country,
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strlen(keyboard_layouts[i].country)))
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continue;
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/* Found, changing keyboard layout */
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map = &keyboard_layouts[i];
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usb_debug(" Keyboard layout '%s'\n", map->country);
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return 0;
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}
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usb_debug(" Keyboard layout '%s' not found, using '%s'\n",
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country, map->country);
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/* Nothing found, not changed */
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return -1;
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}
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void
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usb_hid_init (usbdev_t *dev)
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{
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static int installed = 0;
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if (!installed) {
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installed = 1;
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console_add_input_driver (&cons);
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}
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configuration_descriptor_t *cd = (configuration_descriptor_t*)dev->configuration;
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interface_descriptor_t *interface = (interface_descriptor_t*)(((char *) cd) + cd->bLength);
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if (interface->bInterfaceSubClass == hid_subclass_boot) {
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u8 countrycode;
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usb_debug (" supports boot interface..\n");
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usb_debug (" it's a %s\n",
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boot_protos[interface->bInterfaceProtocol]);
|
|
switch (interface->bInterfaceProtocol) {
|
|
case hid_boot_proto_keyboard:
|
|
dev->data = xzalloc (sizeof (usbhid_inst_t));
|
|
usb_debug (" configuring...\n");
|
|
usb_hid_set_protocol(dev, interface, hid_proto_boot);
|
|
usb_hid_set_idle(dev, interface, KEYBOARD_REPEAT_MS);
|
|
usb_debug (" activating...\n");
|
|
|
|
hid_descriptor_t *desc = malloc(sizeof(hid_descriptor_t));
|
|
if (!desc || get_descriptor(dev, gen_bmRequestType(
|
|
device_to_host, standard_type, iface_recp),
|
|
0x21, 0, desc, sizeof(*desc)) != sizeof(*desc)) {
|
|
usb_debug ("get_descriptor(HID) failed\n");
|
|
usb_detach_device (dev->controller, dev->address);
|
|
return;
|
|
}
|
|
HID_INST (dev)->descriptor = desc;
|
|
countrycode = desc->bCountryCode;
|
|
/* 35 countries defined: */
|
|
if (countrycode >= ARRAY_SIZE(countries))
|
|
countrycode = 0;
|
|
usb_debug (" Keyboard has %s layout (country code %02x)\n",
|
|
countries[countrycode][0], countrycode);
|
|
|
|
/* Set keyboard layout accordingly */
|
|
usb_hid_set_layout(countries[countrycode][1]);
|
|
|
|
// only add here, because we only support boot-keyboard HID devices
|
|
dev->destroy = usb_hid_destroy;
|
|
dev->poll = usb_hid_poll;
|
|
int i;
|
|
for (i = 1; i < dev->num_endp; i++) {
|
|
if (dev->endpoints[i].type != INTERRUPT)
|
|
continue;
|
|
if (dev->endpoints[i].direction != IN)
|
|
continue;
|
|
break;
|
|
}
|
|
if (i >= dev->num_endp) {
|
|
usb_debug ("Could not find HID endpoint\n");
|
|
usb_detach_device (dev->controller, dev->address);
|
|
return;
|
|
}
|
|
usb_debug (" found endpoint %x for interrupt-in\n", i);
|
|
/* 20 buffers of 8 bytes, for every 10 msecs */
|
|
HID_INST(dev)->queue = dev->controller->create_intr_queue (&dev->endpoints[i], 8, 20, 10);
|
|
keycount = 0;
|
|
usb_debug (" configuration done.\n");
|
|
break;
|
|
case hid_boot_proto_mouse:
|
|
usb_debug("NOTICE: USB mice are not supported.\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int usbhid_havechar (void)
|
|
{
|
|
return (keycount != 0);
|
|
}
|
|
|
|
int usbhid_getchar (void)
|
|
{
|
|
short ret;
|
|
|
|
if (keycount == 0)
|
|
return 0;
|
|
ret = keybuffer[0];
|
|
memmove(keybuffer, keybuffer + 1, --keycount);
|
|
|
|
return (int)ret;
|
|
}
|