| 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 usbvirthid
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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 | *
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| 35 | */
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| 36 | #include <errno.h>
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| 37 | #include <usb/debug.h>
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| 38 | #include "virthid.h"
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| 39 |
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| 40 |
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| 41 | void interface_life_live(vuhid_interface_t *iface)
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| 42 | {
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| 43 | vuhid_interface_life_t *data = iface->interface_data;
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| 44 | data->data_in_pos = 0;
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| 45 | data->data_in_last_pos = (size_t) -1;
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| 46 | async_usleep(1000 * 1000 * 5);
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| 47 | usb_log_debug("%s\n", data->msg_born);
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| 48 | while (data->data_in_pos < data->data_in_count) {
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| 49 | async_usleep(1000 * data->data_in_pos_change_delay);
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| 50 | // FIXME: proper locking
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| 51 | data->data_in_pos++;
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| 52 | }
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| 53 | usb_log_debug("%s\n", data->msg_die);
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| 54 | }
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| 55 |
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| 56 |
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| 57 |
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| 58 | int interface_live_on_data_in(vuhid_interface_t *iface,
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| 59 | void *buffer, size_t buffer_size, size_t *act_buffer_size)
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| 60 | {
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| 61 | vuhid_interface_life_t *life = iface->interface_data;
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| 62 | size_t pos = life->data_in_pos;
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| 63 | if (pos >= life->data_in_count) {
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| 64 | return EBADCHECKSUM;
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| 65 | }
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| 66 |
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| 67 | if (pos == life->data_in_last_pos) {
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| 68 | return ENAK;
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| 69 | }
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| 70 |
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| 71 | if (buffer_size > iface->in_data_size) {
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| 72 | buffer_size = iface->in_data_size;
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| 73 | }
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| 74 |
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| 75 | if (act_buffer_size != NULL) {
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| 76 | *act_buffer_size = buffer_size;
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| 77 | }
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| 78 |
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| 79 | memcpy(buffer, life->data_in + pos * iface->in_data_size, buffer_size);
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| 80 | life->data_in_last_pos = pos;
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| 81 |
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| 82 | return EOK;
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| 83 | }
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| 84 |
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| 85 | /** @}
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| 86 | */
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