| 1 | /*
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| 2 | * Copyright (c) 2010 Lenka Trochtova
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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 libc
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #include <ipc/dev_iface.h>
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| 36 | #include <device/char.h>
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| 37 | #include <errno.h>
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| 38 | #include <async.h>
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| 39 | #include <malloc.h>
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| 40 | #include <stdio.h>
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| 41 |
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| 42 |
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| 43 | int read_dev(int dev_phone, void *buf, size_t len)
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| 44 | {
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| 45 | ipc_call_t answer;
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| 46 |
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| 47 | async_serialize_start();
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| 48 |
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| 49 | printf("calling interface %d\n", DEV_IFACE_ID(CHAR_DEV_IFACE));
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| 50 | aid_t req = async_send_1(dev_phone, DEV_IFACE_ID(CHAR_DEV_IFACE), CHAR_READ_DEV, &answer);
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| 51 |
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| 52 | printf("async_data_read_start \n");
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| 53 | int rc = async_data_read_start(dev_phone, buf, len);
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| 54 |
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| 55 | printf("async_data_read_start, rc = %d\n", rc);
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| 56 | if (rc != EOK) {
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| 57 | ipcarg_t rc_orig;
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| 58 | async_wait_for(req, &rc_orig);
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| 59 | async_serialize_end();
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| 60 | if (rc_orig == EOK) {
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| 61 | return rc;
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| 62 | }
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| 63 | else {
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| 64 | return (int) rc_orig;
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| 65 | }
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| 66 | }
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| 67 |
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| 68 | printf("async_wait_for(req, &rc);\n", rc);
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| 69 | async_wait_for(req, &rc);
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| 70 | printf("async_serialize_end();\n", rc);
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| 71 | async_serialize_end();
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| 72 |
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| 73 | if (EOK != rc) {
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| 74 | return rc;
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| 75 | }
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| 76 |
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| 77 | printf("IPC_GET_ARG1(answer);\n", rc);
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| 78 | return IPC_GET_ARG1(answer);
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| 79 | }
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| 80 |
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| 81 | int write_dev(int dev_phone, void *buf, size_t len)
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| 82 | {
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| 83 | // TODO
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| 84 | return 0;
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| 85 | }
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| 86 |
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| 87 |
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| 88 | /** @}
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| 89 | */ |
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