| 1 | /*
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| 2 | * Copyright (c) 2011 Jan Vesely
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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 | /** @addtogroup drvkbd
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| 29 | * @{
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| 30 | */
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| 31 | /** @file
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| 32 | * @brief XT keyboard driver;
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| 33 | */
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| 34 |
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| 35 | #include <errno.h>
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| 36 | #include <devman.h>
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| 37 | #include <device/char_dev.h>
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| 38 | #include <ddf/log.h>
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| 39 |
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| 40 | #include "xtkbd.h"
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| 41 |
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| 42 | static int polling(void *);
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| 43 |
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| 44 | int xt_kbd_init(xt_kbd_t *kbd, ddf_dev_t *dev)
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| 45 | {
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| 46 | assert(kbd);
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| 47 | assert(dev);
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| 48 | kbd->input_sess = NULL;
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| 49 | kbd->parent_sess = devman_parent_device_connect(EXCHANGE_SERIALIZE,
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| 50 | dev->handle, IPC_FLAG_BLOCKING);
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| 51 | if (!kbd->parent_sess)
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| 52 | return ENOMEM;
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| 53 |
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| 54 | kbd->kbd_fun = ddf_fun_create(dev, fun_exposed, "kbd");
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| 55 | if (!kbd->kbd_fun) {
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| 56 | async_hangup(kbd->parent_sess);
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| 57 | return ENOMEM;
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| 58 | }
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| 59 |
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| 60 | const int ret = ddf_fun_bind(kbd->kbd_fun);
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| 61 | if (ret != EOK) {
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| 62 | async_hangup(kbd->parent_sess);
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| 63 | ddf_fun_destroy(kbd->kbd_fun);
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| 64 | return ENOMEM;
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| 65 | }
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| 66 |
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| 67 | kbd->polling_fibril = fibril_create(polling, kbd);
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| 68 | if (!kbd->polling_fibril) {
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| 69 | async_hangup(kbd->parent_sess);
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| 70 | ddf_fun_unbind(kbd->kbd_fun);
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| 71 | ddf_fun_destroy(kbd->kbd_fun);
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| 72 | return ENOMEM;
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| 73 | }
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| 74 | fibril_add_ready(kbd->polling_fibril);
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| 75 | return EOK;
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| 76 | }
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| 77 | /*----------------------------------------------------------------------------*/
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| 78 | int polling(void *arg)
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| 79 | {
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| 80 | assert(arg);
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| 81 | xt_kbd_t *kbd = arg;
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| 82 |
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| 83 | assert(kbd->parent_sess);
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| 84 | while (1) {
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| 85 | uint8_t code = 0;
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| 86 | ssize_t size = char_dev_read(kbd->parent_sess, &code, 1);
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| 87 | ddf_msg(LVL_DEBUG, "Got scancode: %hhx, size: %zd", code, size);
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| 88 | }
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| 89 | }
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