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1 | /* |
1 | /* |
2 | * Copyright (c) 2007 Michal Kebrt |
2 | * Copyright (c) 2007 Michal Kebrt |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup arm32 |
29 | /** @addtogroup arm32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | * @brief ARM32 architecture specific functions. |
33 | * @brief ARM32 architecture specific functions. |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #include <arch.h> |
36 | #include <arch.h> |
37 | #include <config.h> |
37 | #include <config.h> |
38 | #include <arch/console.h> |
38 | #include <arch/console.h> |
39 | #include <ddi/device.h> |
39 | #include <ddi/device.h> |
40 | #include <genarch/fb/fb.h> |
40 | #include <genarch/fb/fb.h> |
41 | #include <genarch/fb/visuals.h> |
41 | #include <genarch/fb/visuals.h> |
42 | #include <ddi/irq.h> |
42 | #include <ddi/irq.h> |
43 | #include <arch/debug/print.h> |
43 | #include <arch/debug/print.h> |
44 | #include <print.h> |
44 | #include <print.h> |
45 | #include <config.h> |
45 | #include <config.h> |
46 | #include <interrupt.h> |
46 | #include <interrupt.h> |
47 | #include <arch/regutils.h> |
47 | #include <arch/regutils.h> |
48 | #include <arch/machine.h> |
48 | #include <arch/machine.h> |
49 | #include <userspace.h> |
49 | #include <userspace.h> |
50 | #include <macros.h> |
50 | #include <macros.h> |
51 | #include <string.h> |
51 | #include <string.h> |
52 | 52 | ||
53 | /** Performs arm32-specific initialization before main_bsp() is called. */ |
53 | /** Performs arm32-specific initialization before main_bsp() is called. */ |
54 | void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo) |
54 | void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo) |
55 | { |
55 | { |
56 | unsigned int i; |
56 | unsigned int i; |
57 | 57 | ||
58 | init.cnt = bootinfo->cnt; |
58 | init.cnt = bootinfo->cnt; |
59 | 59 | ||
60 | for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) { |
60 | for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) { |
61 | init.tasks[i].addr = bootinfo->tasks[i].addr; |
61 | init.tasks[i].addr = bootinfo->tasks[i].addr; |
62 | init.tasks[i].size = bootinfo->tasks[i].size; |
62 | init.tasks[i].size = bootinfo->tasks[i].size; |
63 | strncpy(init.tasks[i].name, bootinfo->tasks[i].name, |
63 | strncpy(init.tasks[i].name, bootinfo->tasks[i].name, |
64 | CONFIG_TASK_NAME_BUFLEN); |
64 | CONFIG_TASK_NAME_BUFLEN); |
65 | } |
65 | } |
66 | } |
66 | } |
67 | 67 | ||
68 | /** Performs arm32 specific initialization before mm is initialized. */ |
68 | /** Performs arm32 specific initialization before mm is initialized. */ |
69 | void arch_pre_mm_init(void) |
69 | void arch_pre_mm_init(void) |
70 | { |
70 | { |
71 | /* It is not assumed by default */ |
71 | /* It is not assumed by default */ |
72 | interrupts_disable(); |
72 | interrupts_disable(); |
73 | } |
73 | } |
74 | 74 | ||
75 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
75 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
76 | void arch_post_mm_init(void) |
76 | void arch_post_mm_init(void) |
77 | { |
77 | { |
78 | machine_hw_map_init(); |
78 | machine_hw_map_init(); |
79 | 79 | ||
80 | /* Initialize exception dispatch table */ |
80 | /* Initialize exception dispatch table */ |
81 | exception_init(); |
81 | exception_init(); |
82 | 82 | ||
83 | interrupt_init(); |
83 | interrupt_init(); |
84 | 84 | ||
85 | console_init(device_assign_devno()); |
85 | machine_console_init(device_assign_devno()); |
86 | 86 | ||
87 | #ifdef CONFIG_FB |
87 | #ifdef CONFIG_FB |
88 | fb_properties_t prop = { |
88 | fb_properties_t prop = { |
89 | .addr = machine_get_fb_address(), |
89 | .addr = machine_get_fb_address(), |
90 | .offset = 0, |
90 | .offset = 0, |
91 | .x = 640, |
91 | .x = 640, |
92 | .y = 480, |
92 | .y = 480, |
93 | .scan = 1920, |
93 | .scan = 1920, |
94 | .visual = VISUAL_BGR_8_8_8, |
94 | .visual = VISUAL_BGR_8_8_8, |
95 | }; |
95 | }; |
96 | fb_init(&prop); |
96 | fb_init(&prop); |
97 | #endif |
97 | #endif |
98 | } |
98 | } |
99 | 99 | ||
100 | /** Performs arm32 specific tasks needed after cpu is initialized. |
100 | /** Performs arm32 specific tasks needed after cpu is initialized. |
101 | * |
101 | * |
102 | * Currently the function is empty. |
102 | * Currently the function is empty. |
103 | */ |
103 | */ |
104 | void arch_post_cpu_init(void) |
104 | void arch_post_cpu_init(void) |
105 | { |
105 | { |
106 | } |
106 | } |
107 | 107 | ||
108 | 108 | ||
109 | /** Performs arm32 specific tasks needed before the multiprocessing is |
109 | /** Performs arm32 specific tasks needed before the multiprocessing is |
110 | * initialized. |
110 | * initialized. |
111 | * |
111 | * |
112 | * Currently the function is empty because SMP is not supported. |
112 | * Currently the function is empty because SMP is not supported. |
113 | */ |
113 | */ |
114 | void arch_pre_smp_init(void) |
114 | void arch_pre_smp_init(void) |
115 | { |
115 | { |
116 | } |
116 | } |
117 | 117 | ||
118 | 118 | ||
119 | /** Performs arm32 specific tasks needed after the multiprocessing is |
119 | /** Performs arm32 specific tasks needed after the multiprocessing is |
120 | * initialized. |
120 | * initialized. |
121 | * |
121 | * |
122 | * Currently the function is empty because SMP is not supported. |
122 | * Currently the function is empty because SMP is not supported. |
123 | */ |
123 | */ |
124 | void arch_post_smp_init(void) |
124 | void arch_post_smp_init(void) |
125 | { |
125 | { |
126 | } |
126 | } |
127 | 127 | ||
128 | 128 | ||
129 | /** Performs arm32 specific tasks needed before the new task is run. */ |
129 | /** Performs arm32 specific tasks needed before the new task is run. */ |
130 | void before_task_runs_arch(void) |
130 | void before_task_runs_arch(void) |
131 | { |
131 | { |
132 | tlb_invalidate_all(); |
132 | tlb_invalidate_all(); |
133 | } |
133 | } |
134 | 134 | ||
135 | 135 | ||
136 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
136 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
137 | * |
137 | * |
138 | * It sets supervisor_sp. |
138 | * It sets supervisor_sp. |
139 | */ |
139 | */ |
140 | void before_thread_runs_arch(void) |
140 | void before_thread_runs_arch(void) |
141 | { |
141 | { |
142 | uint8_t *stck; |
142 | uint8_t *stck; |
143 | 143 | ||
144 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
144 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
145 | supervisor_sp = (uintptr_t) stck; |
145 | supervisor_sp = (uintptr_t) stck; |
146 | } |
146 | } |
147 | 147 | ||
148 | /** Performs arm32 specific tasks before a thread stops running. |
148 | /** Performs arm32 specific tasks before a thread stops running. |
149 | * |
149 | * |
150 | * Currently the function is empty. |
150 | * Currently the function is empty. |
151 | */ |
151 | */ |
152 | void after_thread_ran_arch(void) |
152 | void after_thread_ran_arch(void) |
153 | { |
153 | { |
154 | } |
154 | } |
155 | 155 | ||
156 | /** Halts CPU. */ |
156 | /** Halts CPU. */ |
157 | void cpu_halt(void) |
157 | void cpu_halt(void) |
158 | { |
158 | { |
159 | machine_cpu_halt(); |
159 | machine_cpu_halt(); |
160 | } |
160 | } |
161 | 161 | ||
162 | /** Reboot. */ |
162 | /** Reboot. */ |
163 | void arch_reboot() |
163 | void arch_reboot() |
164 | { |
164 | { |
165 | /* not implemented */ |
165 | /* not implemented */ |
166 | while (1); |
166 | while (1); |
167 | } |
167 | } |
168 | 168 | ||
169 | /** Construct function pointer |
169 | /** Construct function pointer |
170 | * |
170 | * |
171 | * @param fptr function pointer structure |
171 | * @param fptr function pointer structure |
172 | * @param addr function address |
172 | * @param addr function address |
173 | * @param caller calling function address |
173 | * @param caller calling function address |
174 | * |
174 | * |
175 | * @return address of the function pointer |
175 | * @return address of the function pointer |
176 | * |
176 | * |
177 | */ |
177 | */ |
178 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
178 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
179 | { |
179 | { |
180 | return addr; |
180 | return addr; |
181 | } |
181 | } |
182 | 182 | ||
183 | /** @} |
183 | /** @} |
184 | */ |
184 | */ |
185 | 185 |