| 1 | /*
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| 2 | * Copyright (c) 2012 Maurizio Lombardi
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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/clock_dev.h>
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| 37 | #include <errno.h>
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| 38 | #include <async.h>
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| 39 | #include <time.h>
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| 40 |
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| 41 | /** Read the current time from the device
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| 42 | *
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| 43 | * @param sess Session of the device
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| 44 | * @param t The current time that will be read from the device
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| 45 | *
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| 46 | * @return EOK on success or a negative error code
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| 47 | */
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| 48 | int
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| 49 | clock_dev_time_get(async_sess_t *sess, struct tm *t)
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| 50 | {
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| 51 | ipc_call_t answer;
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| 52 | aid_t req;
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| 53 | int ret;
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| 54 |
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| 55 | async_exch_t *exch = async_exchange_begin(sess);
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| 56 |
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| 57 | req = async_send_1(exch, DEV_IFACE_ID(CLOCK_DEV_IFACE),
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| 58 | CLOCK_DEV_TIME_GET, &answer);
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| 59 | ret = async_data_read_start(exch, t, sizeof(*t));
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| 60 |
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| 61 | async_exchange_end(exch);
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| 62 |
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| 63 | sysarg_t rc;
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| 64 | if (ret != EOK) {
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| 65 | async_wait_for(req, &rc);
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| 66 | if (rc == EOK)
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| 67 | return ret;
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| 68 | }
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| 69 |
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| 70 | async_wait_for(req, &rc);
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| 71 | if ((int) rc != EOK)
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| 72 | return ret;
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| 73 |
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| 74 | return (int) IPC_GET_ARG1(answer);
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| 75 | }
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| 76 |
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| 77 | /** Set the current time
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| 78 | *
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| 79 | * @param sess Session of the device
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| 80 | * @param t The current time that will be written to the device
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| 81 | *
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| 82 | * @return EOK on success or a negative error code
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| 83 | */
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| 84 | int
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| 85 | clock_dev_time_set(async_sess_t *sess, struct tm *t)
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| 86 | {
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| 87 | ipc_call_t answer;
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| 88 | aid_t req;
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| 89 | int ret;
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| 90 |
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| 91 | async_exch_t *exch = async_exchange_begin(sess);
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| 92 |
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| 93 | req = async_send_1(exch, DEV_IFACE_ID(CLOCK_DEV_IFACE),
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| 94 | CLOCK_DEV_TIME_SET, &answer);
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| 95 | ret = async_data_write_start(exch, t, sizeof(*t));
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| 96 |
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| 97 | async_exchange_end(exch);
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| 98 |
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| 99 | sysarg_t rc;
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| 100 | if (ret != EOK) {
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| 101 | async_wait_for(req, &rc);
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| 102 | if (rc == EOK)
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| 103 | return ret;
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| 104 | }
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| 105 |
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| 106 | async_wait_for(req, &rc);
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| 107 | if ((int) rc != EOK)
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| 108 | return ret;
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| 109 |
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| 110 | return (int) IPC_GET_ARG1(answer);
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| 111 | }
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| 112 |
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| 113 | /** @}
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| 114 | */
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| 115 |
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