source: mainline/uspace/lib/drv/generic/remote_pio_window.c@ 48bd6f4

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 48bd6f4 was 48bd6f4, checked in by Jakub Jermar <jakub@…>, 12 years ago

Add PIO_WINDOW_DEV_IFACE and support methods.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1/*
2 * Copyright (c) 2013 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libdrv
30 * @{
31 */
32/** @file
33 */
34
35#include <async.h>
36#include <errno.h>
37
38#include "ops/pio_window.h"
39#include "ddf/driver.h"
40
41static void remote_pio_window_get(ddf_fun_t *, void *, ipc_callid_t,
42 ipc_call_t *);
43
44static remote_iface_func_ptr_t remote_pio_window_iface_ops [] = {
45 [PIO_WINDOW_GET] = &remote_pio_window_get
46};
47
48remote_iface_t remote_pio_window_iface = {
49 .method_count = sizeof(remote_pio_window_iface_ops) /
50 sizeof(remote_iface_func_ptr_t),
51 .methods = remote_pio_window_iface_ops
52};
53
54static void remote_pio_window_get(ddf_fun_t *fun, void *ops,
55 ipc_callid_t callid, ipc_call_t *call)
56{
57 pio_window_ops_t *pio_win_ops = (pio_window_ops_t *) ops;
58 size_t len;
59
60 if (!pio_win_ops->get_pio_window) {
61 async_answer_0(callid, ENOTSUP);
62 return;
63 }
64
65 pio_window_t *pio_window = pio_win_ops->get_pio_window(fun);
66 if (!pio_window) {
67 async_answer_0(callid, ENOENT);
68 return;
69 }
70
71 async_answer_0(callid, EOK);
72
73 if (!async_data_read_receive(&callid, &len)) {
74 /* Protocol error - the recipient is not accepting data */
75 return;
76 }
77
78 async_data_read_finalize(callid, pio_window, len);
79}
80
81/**
82 * @}
83 */
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