1 | /*===============================================================*\ |
---|
2 | | Project: RTEMS generic MPC83xx BSP | |
---|
3 | +-----------------------------------------------------------------+ |
---|
4 | | Copyright (c) 2007 | |
---|
5 | | Embedded Brains GmbH | |
---|
6 | | Obere Lagerstr. 30 | |
---|
7 | | D-82178 Puchheim | |
---|
8 | | Germany | |
---|
9 | | rtems@embedded-brains.de | |
---|
10 | +-----------------------------------------------------------------+ |
---|
11 | | The license and distribution terms for this file may be | |
---|
12 | | found in the file LICENSE in this distribution or at | |
---|
13 | | | |
---|
14 | | http://www.rtems.org/license/LICENSE. | |
---|
15 | | | |
---|
16 | +-----------------------------------------------------------------+ |
---|
17 | | this file integrates the IPIC irq controller | |
---|
18 | \*===============================================================*/ |
---|
19 | |
---|
20 | #include <rtems.h> |
---|
21 | |
---|
22 | #include <libcpu/powerpc-utility.h> |
---|
23 | |
---|
24 | #include <bsp.h> |
---|
25 | #include <bsp/irq.h> |
---|
26 | #include <bsp/irq-generic.h> |
---|
27 | #include <bsp/vectors.h> |
---|
28 | |
---|
29 | static int qemuppc_exception_handler( |
---|
30 | BSP_Exception_frame *frame, |
---|
31 | unsigned exception_number |
---|
32 | ) |
---|
33 | { |
---|
34 | rtems_panic("Unexpected interrupt occured"); |
---|
35 | return 0; |
---|
36 | } |
---|
37 | |
---|
38 | rtems_status_code bsp_interrupt_get_attributes( |
---|
39 | rtems_vector_number vector, |
---|
40 | rtems_interrupt_attributes *attributes |
---|
41 | ) |
---|
42 | { |
---|
43 | return RTEMS_SUCCESSFUL; |
---|
44 | } |
---|
45 | |
---|
46 | rtems_status_code bsp_interrupt_is_pending( |
---|
47 | rtems_vector_number vector, |
---|
48 | bool *pending |
---|
49 | ) |
---|
50 | { |
---|
51 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
---|
52 | bsp_interrupt_assert(pending != NULL); |
---|
53 | *pending = false; |
---|
54 | return RTEMS_UNSATISFIED; |
---|
55 | } |
---|
56 | |
---|
57 | rtems_status_code bsp_interrupt_raise(rtems_vector_number vector) |
---|
58 | { |
---|
59 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
---|
60 | return RTEMS_UNSATISFIED; |
---|
61 | } |
---|
62 | |
---|
63 | rtems_status_code bsp_interrupt_clear(rtems_vector_number vector) |
---|
64 | { |
---|
65 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
---|
66 | return RTEMS_UNSATISFIED; |
---|
67 | } |
---|
68 | |
---|
69 | rtems_status_code bsp_interrupt_vector_is_enabled( |
---|
70 | rtems_vector_number vector, |
---|
71 | bool *enabled |
---|
72 | ) |
---|
73 | { |
---|
74 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector)); |
---|
75 | bsp_interrupt_assert(enabled != NULL); |
---|
76 | *enabled = false; |
---|
77 | return RTEMS_UNSATISFIED; |
---|
78 | } |
---|
79 | |
---|
80 | /* |
---|
81 | * functions to enable/disable a source at the ipic |
---|
82 | */ |
---|
83 | rtems_status_code bsp_interrupt_vector_enable( rtems_vector_number irqnum) |
---|
84 | { |
---|
85 | /* FIXME: do something */ |
---|
86 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum)); |
---|
87 | return RTEMS_SUCCESSFUL; |
---|
88 | } |
---|
89 | |
---|
90 | rtems_status_code bsp_interrupt_vector_disable( rtems_vector_number irqnum) |
---|
91 | { |
---|
92 | /* FIXME: do something */ |
---|
93 | bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum)); |
---|
94 | return RTEMS_SUCCESSFUL; |
---|
95 | } |
---|
96 | |
---|
97 | rtems_status_code bsp_interrupt_facility_initialize(void) |
---|
98 | { |
---|
99 | /* Install exception handler */ |
---|
100 | if (ppc_exc_set_handler( ASM_EXT_VECTOR, qemuppc_exception_handler)) { |
---|
101 | return RTEMS_IO_ERROR; |
---|
102 | } |
---|
103 | |
---|
104 | return RTEMS_SUCCESSFUL; |
---|
105 | } |
---|