| 1 | /*
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| 2 | * Copyright (c) 2014 Jiri Svoboda
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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 <assert.h>
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| 36 | #include <errno.h>
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| 37 | #include <ipc/irc.h>
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| 38 | #include <ipc/services.h>
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| 39 | #include <irc.h>
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| 40 | #include <ns.h>
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| 41 | #include <sysinfo.h>
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| 42 |
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| 43 | static async_sess_t *irc_sess;
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| 44 |
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| 45 | /** Connect to IRC service.
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| 46 | *
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| 47 | * @return EOK on success, EIO on failure
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| 48 | */
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| 49 | static int irc_init(void)
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| 50 | {
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| 51 | assert(irc_sess == NULL);
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| 52 |
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| 53 | irc_sess = service_connect_blocking(SERVICE_IRC, INTERFACE_IRC, 0);
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| 54 |
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| 55 | if (irc_sess == NULL)
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| 56 | return EIO;
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| 57 |
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| 58 | return EOK;
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| 59 | }
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| 60 |
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| 61 | /** Enable interrupt.
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| 62 | *
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| 63 | * @param irq IRQ number
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| 64 | */
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| 65 | int irc_enable_interrupt(int irq)
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| 66 | {
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| 67 | int rc;
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| 68 |
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| 69 | if (irc_sess == NULL) {
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| 70 | rc = irc_init();
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| 71 | if (rc != EOK)
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| 72 | return rc;
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| 73 | }
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| 74 |
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| 75 | async_exch_t *exch = async_exchange_begin(irc_sess);
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| 76 | rc = async_req_1_0(exch, IRC_ENABLE_INTERRUPT, irq);
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| 77 | async_exchange_end(exch);
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| 78 |
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| 79 | return rc;
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| 80 | }
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| 81 |
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| 82 |
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| 83 | /** Disable interrupt.
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| 84 | *
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| 85 | * @param irq IRQ number
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| 86 | */
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| 87 | int irc_disable_interrupt(int irq)
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| 88 | {
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| 89 | int rc;
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| 90 |
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| 91 | if (irc_sess == NULL) {
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| 92 | rc = irc_init();
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| 93 | if (rc != EOK)
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| 94 | return rc;
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| 95 | }
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| 96 |
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| 97 | async_exch_t *exch = async_exchange_begin(irc_sess);
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| 98 | rc = async_req_1_0(exch, IRC_CLEAR_INTERRUPT, irq);
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| 99 | async_exchange_end(exch);
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| 100 |
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| 101 | return rc;
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| 102 | }
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| 103 |
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| 104 | /** @}
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| 105 | */
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