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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 <arch/boot.h> |
- | |
38 | #include <config.h> |
37 | #include <config.h> |
39 | #include <arch/console.h> |
- | |
40 | #include <ddi/device.h> |
- | |
41 | #include <genarch/fb/fb.h> |
38 | #include <genarch/fb/fb.h> |
42 | #include <genarch/fb/visuals.h> |
39 | #include <genarch/fb/visuals.h> |
- | 40 | #include <genarch/drivers/dsrln/dsrlnin.h> |
|
- | 41 | #include <genarch/drivers/dsrln/dsrlnout.h> |
|
- | 42 | #include <genarch/srln/srln.h> |
|
- | 43 | #include <sysinfo/sysinfo.h> |
|
- | 44 | #include <console/console.h> |
|
43 | #include <ddi/irq.h> |
45 | #include <ddi/irq.h> |
44 | #include <arch/debug/print.h> |
46 | #include <arch/drivers/gxemul.h> |
45 | #include <print.h> |
47 | #include <print.h> |
46 | #include <config.h> |
48 | #include <config.h> |
47 | #include <interrupt.h> |
49 | #include <interrupt.h> |
48 | #include <arch/regutils.h> |
50 | #include <arch/regutils.h> |
49 | #include <arch/machine.h> |
- | |
50 | #include <userspace.h> |
51 | #include <userspace.h> |
- | 52 | #include <macros.h> |
|
- | 53 | #include <string.h> |
|
51 | 54 | ||
52 | /** Information about loaded tasks. */ |
- | |
53 | bootinfo_t bootinfo; |
- | |
54 | - | ||
55 | /** Performs arm32 specific initialization before main_bsp() is called. */ |
55 | /** Performs arm32-specific initialization before main_bsp() is called. */ |
56 | void arch_pre_main(void) |
56 | void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo) |
57 | { |
57 | { |
58 | unsigned int i; |
58 | unsigned int i; |
59 | - | ||
60 | init.cnt = bootinfo.cnt; |
- | |
61 | - | ||
62 | for (i = 0; i < bootinfo.cnt; ++i) { |
- | |
63 | init.tasks[i].addr = bootinfo.tasks[i].addr; |
- | |
64 | init.tasks[i].size = bootinfo.tasks[i].size; |
- | |
65 | } |
- | |
66 | 59 | ||
- | 60 | init.cnt = bootinfo->cnt; |
|
- | 61 | ||
- | 62 | for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) { |
|
- | 63 | init.tasks[i].addr = bootinfo->tasks[i].addr; |
|
- | 64 | init.tasks[i].size = bootinfo->tasks[i].size; |
|
- | 65 | str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN, |
|
- | 66 | bootinfo->tasks[i].name); |
|
- | 67 | } |
|
67 | } |
68 | } |
68 | 69 | ||
69 | /** Performs arm32 specific initialization before mm is initialized. */ |
70 | /** Performs arm32 specific initialization before mm is initialized. */ |
70 | void arch_pre_mm_init(void) |
71 | void arch_pre_mm_init(void) |
71 | { |
72 | { |
72 | /* It is not assumed by default */ |
73 | /* It is not assumed by default */ |
73 | interrupts_disable(); |
74 | interrupts_disable(); |
74 | } |
75 | } |
75 | 76 | ||
76 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
77 | /** Performs arm32 specific initialization afterr mm is initialized. */ |
77 | void arch_post_mm_init(void) |
78 | void arch_post_mm_init(void) |
78 | { |
79 | { |
79 | machine_hw_map_init(); |
80 | gxemul_init(); |
80 | 81 | ||
81 | /* Initialize exception dispatch table */ |
82 | /* Initialize exception dispatch table */ |
82 | exception_init(); |
83 | exception_init(); |
83 | - | ||
84 | interrupt_init(); |
84 | interrupt_init(); |
85 | 85 | ||
86 | console_init(device_assign_devno()); |
- | |
87 | - | ||
88 | #ifdef CONFIG_FB |
86 | #ifdef CONFIG_FB |
89 | fb_properties_t prop = { |
87 | fb_properties_t prop = { |
90 | .addr = machine_get_fb_address(), |
88 | .addr = GXEMUL_FB_ADDRESS, |
91 | .offset = 0, |
89 | .offset = 0, |
92 | .x = 640, |
90 | .x = 640, |
93 | .y = 480, |
91 | .y = 480, |
94 | .scan = 1920, |
92 | .scan = 1920, |
95 | .visual = VISUAL_RGB_8_8_8, |
93 | .visual = VISUAL_BGR_8_8_8, |
96 | }; |
94 | }; |
97 | fb_init(&prop); |
95 | fb_init(&prop); |
98 | #endif |
96 | #else |
- | 97 | #ifdef CONFIG_ARM_PRN |
|
- | 98 | dsrlnout_init((ioport8_t *) gxemul_kbd); |
|
- | 99 | #endif /* CONFIG_ARM_PRN */ |
|
- | 100 | #endif /* CONFIG_FB */ |
|
99 | } |
101 | } |
100 | 102 | ||
101 | /** Performs arm32 specific tasks needed after cpu is initialized. |
103 | /** Performs arm32 specific tasks needed after cpu is initialized. |
102 | * |
104 | * |
103 | * Currently the function is empty. |
105 | * Currently the function is empty. |
104 | */ |
106 | */ |
105 | void arch_post_cpu_init(void) |
107 | void arch_post_cpu_init(void) |
106 | { |
108 | { |
107 | } |
109 | } |
108 | 110 | ||
109 | 111 | ||
110 | /** Performs arm32 specific tasks needed before the multiprocessing is |
112 | /** Performs arm32 specific tasks needed before the multiprocessing is |
111 | * initialized. |
113 | * initialized. |
112 | * |
114 | * |
113 | * Currently the function is empty because SMP is not supported. |
115 | * Currently the function is empty because SMP is not supported. |
114 | */ |
116 | */ |
115 | void arch_pre_smp_init(void) |
117 | void arch_pre_smp_init(void) |
116 | { |
118 | { |
117 | } |
119 | } |
118 | 120 | ||
119 | 121 | ||
120 | /** Performs arm32 specific tasks needed after the multiprocessing is |
122 | /** Performs arm32 specific tasks needed after the multiprocessing is |
121 | * initialized. |
123 | * initialized. |
122 | * |
124 | * |
123 | * Currently the function is empty because SMP is not supported. |
125 | * Currently the function is empty because SMP is not supported. |
124 | */ |
126 | */ |
125 | void arch_post_smp_init(void) |
127 | void arch_post_smp_init(void) |
126 | { |
128 | { |
- | 129 | #ifdef CONFIG_ARM_KBD |
|
- | 130 | /* |
|
- | 131 | * Initialize the GXemul keyboard port. Then initialize the serial line |
|
- | 132 | * module and connect it to the GXemul keyboard. |
|
- | 133 | */ |
|
- | 134 | dsrlnin_instance_t *dsrlnin_instance |
|
- | 135 | = dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ); |
|
- | 136 | if (dsrlnin_instance) { |
|
- | 137 | srln_instance_t *srln_instance = srln_init(); |
|
- | 138 | if (srln_instance) { |
|
- | 139 | indev_t *sink = stdin_wire(); |
|
- | 140 | indev_t *srln = srln_wire(srln_instance, sink); |
|
- | 141 | dsrlnin_wire(dsrlnin_instance, srln); |
|
- | 142 | } |
|
- | 143 | } |
|
- | 144 | ||
- | 145 | /* |
|
- | 146 | * This is the necessary evil until the userspace driver is entirely |
|
- | 147 | * self-sufficient. |
|
- | 148 | */ |
|
- | 149 | sysinfo_set_item_val("kbd", NULL, true); |
|
- | 150 | sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ); |
|
- | 151 | sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd); |
|
- | 152 | #endif |
|
127 | } |
153 | } |
128 | 154 | ||
129 | 155 | ||
130 | /** Performs arm32 specific tasks needed before the new task is run. */ |
156 | /** Performs arm32 specific tasks needed before the new task is run. */ |
131 | void before_task_runs_arch(void) |
157 | void before_task_runs_arch(void) |
132 | { |
158 | { |
133 | tlb_invalidate_all(); |
159 | tlb_invalidate_all(); |
134 | } |
160 | } |
135 | 161 | ||
136 | 162 | ||
137 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
163 | /** Performs arm32 specific tasks needed before the new thread is scheduled. |
138 | * |
164 | * |
139 | * It sets supervisor_sp. |
165 | * It sets supervisor_sp. |
140 | */ |
166 | */ |
141 | void before_thread_runs_arch(void) |
167 | void before_thread_runs_arch(void) |
142 | { |
168 | { |
143 | uint8_t *stck; |
169 | uint8_t *stck; |
144 | 170 | ||
145 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
171 | stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
146 | supervisor_sp = (uintptr_t) stck; |
172 | supervisor_sp = (uintptr_t) stck; |
147 | } |
173 | } |
148 | 174 | ||
149 | /** Performs arm32 specific tasks before a thread stops running. |
175 | /** Performs arm32 specific tasks before a thread stops running. |
150 | * |
176 | * |
151 | * Currently the function is empty. |
177 | * Currently the function is empty. |
152 | */ |
178 | */ |
153 | void after_thread_ran_arch(void) |
179 | void after_thread_ran_arch(void) |
154 | { |
180 | { |
155 | } |
181 | } |
156 | 182 | ||
157 | /** Halts CPU. */ |
183 | /** Halts CPU. */ |
158 | void cpu_halt(void) |
184 | void cpu_halt(void) |
159 | { |
185 | { |
160 | machine_cpu_halt(); |
186 | *((char *) (gxemul_kbd + GXEMUL_HALT_OFFSET)) |
- | 187 | = 0; |
|
161 | } |
188 | } |
162 | 189 | ||
163 | /** Reboot. */ |
190 | /** Reboot. */ |
164 | void arch_reboot() |
191 | void arch_reboot() |
165 | { |
192 | { |
166 | /* not implemented */ |
193 | /* not implemented */ |
167 | for (;;) |
194 | while (1); |
- | 195 | } |
|
- | 196 | ||
- | 197 | /** Construct function pointer |
|
- | 198 | * |
|
- | 199 | * @param fptr function pointer structure |
|
- | 200 | * @param addr function address |
|
- | 201 | * @param caller calling function address |
|
- | 202 | * |
|
- | 203 | * @return address of the function pointer |
|
- | 204 | * |
|
168 | ; |
205 | */ |
- | 206 | void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller) |
|
- | 207 | { |
|
- | 208 | return addr; |
|
- | 209 | } |
|
- | 210 | ||
- | 211 | /** Acquire console back for kernel. */ |
|
- | 212 | void arch_grab_console(void) |
|
- | 213 | { |
|
- | 214 | #ifdef CONFIG_FB |
|
- | 215 | fb_redraw(); |
|
- | 216 | #endif |
|
- | 217 | } |
|
- | 218 | ||
- | 219 | /** Return console to userspace. */ |
|
- | 220 | void arch_release_console(void) |
|
- | 221 | { |
|
169 | } |
222 | } |
170 | 223 | ||
171 | /** @} |
224 | /** @} |
172 | */ |
225 | */ |
173 | 226 |