| 1 | /*
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| 2 | * Copyright (c) 2011 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup drvusbmouse
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file
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| 34 | * Actual handling of USB mouse protocol.
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| 35 | */
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| 36 |
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| 37 | #include <usb/debug.h>
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| 38 | #include <errno.h>
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| 39 | #include <str_error.h>
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| 40 | #include <ipc/mouseev.h>
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| 41 | #include <async.h>
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| 42 | #include "mouse.h"
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| 43 |
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| 44 | /** Mouse polling callback.
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| 45 | *
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| 46 | * @param dev Device that is being polled.
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| 47 | * @param buffer Data buffer.
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| 48 | * @param size Buffer size in bytes.
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| 49 | * @param arg Pointer to usb_mouse_t.
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| 50 | *
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| 51 | * @return Always true.
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| 52 | *
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| 53 | */
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| 54 | bool usb_mouse_polling_callback(usb_device_t *dev, uint8_t *buffer,
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| 55 | size_t size, void *arg)
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| 56 | {
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| 57 | usb_mouse_t *mouse = (usb_mouse_t *) arg;
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| 58 |
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| 59 | usb_log_debug2("got buffer: %s.\n",
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| 60 | usb_debug_str_buffer(buffer, size, 0));
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| 61 |
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| 62 | uint8_t butt = buffer[0];
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| 63 | char str_buttons[4] = {
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| 64 | butt & 1 ? '#' : '.',
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| 65 | butt & 2 ? '#' : '.',
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| 66 | butt & 4 ? '#' : '.',
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| 67 | 0
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| 68 | };
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| 69 |
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| 70 | int shift_x = ((int) buffer[1]) - 127;
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| 71 | int shift_y = ((int) buffer[2]) - 127;
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| 72 | int wheel = ((int) buffer[3]) - 127;
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| 73 |
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| 74 | if (buffer[1] == 0)
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| 75 | shift_x = 0;
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| 76 |
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| 77 | if (buffer[2] == 0)
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| 78 | shift_y = 0;
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| 79 |
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| 80 | if (buffer[3] == 0)
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| 81 | wheel = 0;
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| 82 |
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| 83 | if (mouse->console_sess) {
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| 84 | if ((shift_x != 0) || (shift_y != 0)) {
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| 85 | // FIXME: guessed for QEMU
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| 86 |
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| 87 | async_exch_t *exch = async_exchange_begin(mouse->console_sess);
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| 88 | async_req_2_0(exch, MOUSEEV_MOVE_EVENT, -shift_x / 10, -shift_y / 10);
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| 89 | async_exchange_end(exch);
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| 90 | }
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| 91 | if (butt) {
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| 92 | // FIXME: proper button clicking
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| 93 |
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| 94 | async_exch_t *exch = async_exchange_begin(mouse->console_sess);
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| 95 | async_req_2_0(exch, MOUSEEV_BUTTON_EVENT, 1, 1);
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| 96 | async_req_2_0(exch, MOUSEEV_BUTTON_EVENT, 1, 0);
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| 97 | async_exchange_end(exch);
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| 98 | }
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| 99 | }
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| 100 |
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| 101 | usb_log_debug("buttons=%s dX=%+3d dY=%+3d wheel=%+3d\n",
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| 102 | str_buttons, shift_x, shift_y, wheel);
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| 103 |
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| 104 | /* Guess. */
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| 105 | async_usleep(1000);
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| 106 |
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| 107 | return true;
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| 108 | }
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| 109 |
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| 110 | /** Callback when polling is terminated.
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| 111 | *
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| 112 | * @param dev Device where the polling terminated.
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| 113 | * @param recurring_errors Whether the polling was terminated due to
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| 114 | * recurring errors.
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| 115 | * @param arg Pointer to usb_mouse_t.
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| 116 | *
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| 117 | */
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| 118 | void usb_mouse_polling_ended_callback(usb_device_t *dev, bool recurring_errors,
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| 119 | void *arg)
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| 120 | {
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| 121 | usb_mouse_t *mouse = (usb_mouse_t *) arg;
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| 122 |
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| 123 | async_hangup(mouse->console_sess);
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| 124 | mouse->console_sess = NULL;
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| 125 |
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| 126 | usb_device_destroy(dev);
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| 127 | }
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| 128 |
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| 129 | /**
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| 130 | * @}
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| 131 | */
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