1 | /* SPDX-License-Identifier: BSD-2-Clause */ |
---|
2 | |
---|
3 | /** |
---|
4 | * @file |
---|
5 | * @ingroup sparc_erc32 |
---|
6 | * @brief Implementations for interrupt mechanisms for Time Test 27 |
---|
7 | */ |
---|
8 | |
---|
9 | /* |
---|
10 | * COPYRIGHT (c) 2006. |
---|
11 | * Aeroflex Gaisler AB. |
---|
12 | * |
---|
13 | * Redistribution and use in source and binary forms, with or without |
---|
14 | * modification, are permitted provided that the following conditions |
---|
15 | * are met: |
---|
16 | * 1. Redistributions of source code must retain the above copyright |
---|
17 | * notice, this list of conditions and the following disclaimer. |
---|
18 | * 2. Redistributions in binary form must reproduce the above copyright |
---|
19 | * notice, this list of conditions and the following disclaimer in the |
---|
20 | * documentation and/or other materials provided with the distribution. |
---|
21 | * |
---|
22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
---|
23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
---|
26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
---|
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
---|
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
---|
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
---|
30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
---|
31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
---|
32 | * POSSIBILITY OF SUCH DAMAGE. |
---|
33 | */ |
---|
34 | |
---|
35 | #ifndef _RTEMS_TMTEST27 |
---|
36 | #error "This is an RTEMS internal file you must not include directly." |
---|
37 | #endif |
---|
38 | |
---|
39 | #ifndef __tm27_h |
---|
40 | #define __tm27_h |
---|
41 | |
---|
42 | /* |
---|
43 | * Define the interrupt mechanism for Time Test 27 |
---|
44 | * |
---|
45 | * NOTE: Since the interrupt code for the SPARC supports both synchronous |
---|
46 | * and asynchronous trap handlers, support for testing with both |
---|
47 | * is included. |
---|
48 | */ |
---|
49 | |
---|
50 | #define ERC32_BSP_USE_SYNCHRONOUS_TRAP 0 |
---|
51 | |
---|
52 | /* |
---|
53 | * The synchronous trap is an arbitrarily chosen software trap. |
---|
54 | */ |
---|
55 | |
---|
56 | #if (ERC32_BSP_USE_SYNCHRONOUS_TRAP == 1) |
---|
57 | |
---|
58 | #define TEST_VECTOR SPARC_SYNCHRONOUS_TRAP( 0x90 ) |
---|
59 | |
---|
60 | #define MUST_WAIT_FOR_INTERRUPT 1 |
---|
61 | |
---|
62 | #define TM27_USE_VECTOR_HANDLER |
---|
63 | |
---|
64 | #define Install_tm27_vector( handler ) \ |
---|
65 | set_vector( (handler), TEST_VECTOR, 1 ); |
---|
66 | |
---|
67 | #define Cause_tm27_intr() \ |
---|
68 | __asm__ volatile( "ta 0x10; nop " ); |
---|
69 | |
---|
70 | #define Clear_tm27_intr() /* empty */ |
---|
71 | |
---|
72 | #define Lower_tm27_intr() /* empty */ |
---|
73 | |
---|
74 | /* |
---|
75 | * The asynchronous trap is an arbitrarily chosen ERC32 interrupt source. |
---|
76 | */ |
---|
77 | |
---|
78 | #else /* use a regular asynchronous trap */ |
---|
79 | |
---|
80 | #define TEST_INTERRUPT_SOURCE ERC32_INTERRUPT_EXTERNAL_1 |
---|
81 | #define TEST_INTERRUPT_SOURCE2 (ERC32_INTERRUPT_EXTERNAL_1+1) |
---|
82 | |
---|
83 | #define MUST_WAIT_FOR_INTERRUPT 1 |
---|
84 | |
---|
85 | static inline void Install_tm27_vector( rtems_interrupt_handler handler ) |
---|
86 | { |
---|
87 | (void) rtems_interrupt_handler_install( |
---|
88 | TEST_INTERRUPT_SOURCE, |
---|
89 | "tm27 low", |
---|
90 | RTEMS_INTERRUPT_SHARED, |
---|
91 | handler, |
---|
92 | NULL |
---|
93 | ); |
---|
94 | (void) rtems_interrupt_handler_install( |
---|
95 | TEST_INTERRUPT_SOURCE2, |
---|
96 | "tm27 high", |
---|
97 | RTEMS_INTERRUPT_SHARED, |
---|
98 | handler, |
---|
99 | NULL |
---|
100 | ); |
---|
101 | } |
---|
102 | |
---|
103 | #define Cause_tm27_intr() \ |
---|
104 | do { \ |
---|
105 | ERC32_Force_interrupt( TEST_INTERRUPT_SOURCE+(Interrupt_nest>>1) ); \ |
---|
106 | nop(); \ |
---|
107 | nop(); \ |
---|
108 | nop(); \ |
---|
109 | } while (0) |
---|
110 | |
---|
111 | #define Clear_tm27_intr() \ |
---|
112 | ERC32_Clear_interrupt( TEST_INTERRUPT_SOURCE ) |
---|
113 | |
---|
114 | #define Lower_tm27_intr() /* empty */ |
---|
115 | |
---|
116 | #endif |
---|
117 | |
---|
118 | #endif |
---|