1/*
2 * Copyright 2017, Data61
3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
4 * ABN 41 687 119 230.
5 *
6 * This software may be distributed and modified according to the terms of
7 * the BSD 2-Clause license. Note that NO WARRANTY is provided.
8 * See "LICENSE_BSD2.txt" for details.
9 *
10 * @TAG(DATA61_BSD)
11 */
12
13/*- import 'helpers/error.c' as error with context -*/
14
15#include <camkes/error.h>
16#include <sel4/sel4.h>
17#include <sync/sem-bare.h>
18#include <utils/util.h>
19
20/*? macros.show_includes(me.instance.type.includes) ?*/
21
22/* Interface-specific error handling. */
23/*- set error_handler = '%s_error_handler' % me.interface.name -*/
24/*? error.make_error_handler(interface, error_handler) ?*/
25
26/*- set my_index = me.parent.from_ends.index(me) -*/
27
28/*- set eps = [] -*/
29/*- for index in six.moves.range(len(me.parent.to_ends)) -*/
30  /*- do eps.append(alloc('ep_%d' % index, seL4_EndpointObject, read=True, write=True)) -*/
31
32  char from_/*? my_index ?*/_/*? me.interface.name ?*/_/*? index ?*/_data[ROUND_UP_UNSAFE(sizeof(int), PAGE_SIZE_4K)]
33   ALIGN(4096)
34   SECTION("align_12bit");
35  volatile int *counter_/*? index ?*/ = (volatile int*)from_/*? my_index ?*/_/*? me.interface.name ?*/_/*? index ?*/_data;
36  /*? register_shared_variable('%s_%d_data' % (me.parent.name, index), 'from_%d_%s_%d_data' % (my_index, me.interface.name, index), 4096, perm='RW') ?*/
37/*- endfor -*/
38
39void /*? me.interface.name ?*/_emit_underlying(void) {
40    int result UNUSED;
41    /*- for index, ep in enumerate(eps) -*/
42      result = sync_sem_bare_post(/*? ep ?*/, counter_/*? index ?*/);
43      ERR_IF(result != 0, /*? error_handler ?*/, ((camkes_error_t){
44            .type = CE_OVERFLOW,
45            .instance = "/*? me.instance.name ?*/",
46            .interface = "/*? me.interface.name ?*/",
47            .description = "failed to send event to 'to' end #/*? index ?*/ due to potential overflow",
48          }), ({
49              return;
50          }));
51    /*- endfor -*/
52}
53