WebSVN – HelenOS – Diff – /trunk/kernel/arch/arm32/src/arm32.c


/*
 * Copyright (c) 2007 Michal Kebrt
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup arm32
 * @{
 */
/** @file
 *  @brief ARM32 architecture specific functions.
 */
 
#include <arch.h>
#include <config.h>
#include <genarch/fb/fb.h>
#include <genarch/fb/visuals.h>
 
 
 
#include <sysinfo/sysinfo.h>
#include <console/console.h>
#include <ddi/irq.h>
#include <arch/machine.h>
#include <print.h>
#include <config.h>
#include <interrupt.h>
#include <arch/regutils.h>
#include <userspace.h>
#include <macros.h>
#include <string.h>
 
/** Performs arm32-specific initialization before main_bsp() is called. */
void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
{
    unsigned int i;
   
    init.cnt = bootinfo->cnt;
   
    for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
        init.tasks[i].addr = bootinfo->tasks[i].addr;
        init.tasks[i].size = bootinfo->tasks[i].size;
        str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
            bootinfo->tasks[i].name);
    }
}
 
/** Performs arm32 specific initialization before mm is initialized. */
void arch_pre_mm_init(void)
{
    /* It is not assumed by default */
    interrupts_disable();
}
 
/** Performs arm32 specific initialization afterr mm is initialized. */
void arch_post_mm_init(void)
{
    machine_init();
   
    /* Initialize exception dispatch table */
    exception_init();
    interrupt_init();
   
#ifdef CONFIG_FB
 
 
 
 
 
 
 
 
    machine_fb_init();
#else
#ifdef CONFIG_ARM_PRN
    machine_output_init();
#endif /* CONFIG_ARM_PRN */
#endif /* CONFIG_FB */
}
 
/** Performs arm32 specific tasks needed after cpu is initialized.
 *
 * Currently the function is empty.
 */
void arch_post_cpu_init(void)
{
}
 
 
/** Performs arm32 specific tasks needed before the multiprocessing is
 * initialized.
 *
 * Currently the function is empty because SMP is not supported.
 */
void arch_pre_smp_init(void)
{
}
 
 
/** Performs arm32 specific tasks needed after the multiprocessing is
 * initialized.
 *
 * Currently the function is empty because SMP is not supported.
 */
void arch_post_smp_init(void)
{
 
 
 
 
 
 
 
 
 
 
    machine_input_init();
 
 
 
 
 
 
 
 
 
 
 
 
 
}
 
 
/** Performs arm32 specific tasks needed before the new task is run. */
void before_task_runs_arch(void)
{
 
}
 
 
/** Performs arm32 specific tasks needed before the new thread is scheduled.
 *
 * It sets supervisor_sp.
 */
void before_thread_runs_arch(void)
{
    uint8_t *stck;
   
    tlb_invalidate_all();
    stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
    supervisor_sp = (uintptr_t) stck;
}
 
/** Performs arm32 specific tasks before a thread stops running.
 *
 * Currently the function is empty.
 */
void after_thread_ran_arch(void)
{
}
 
/** Halts CPU. */
void cpu_halt(void)
{
    machine_cpu_halt();
 
}
 
/** Reboot. */
void arch_reboot()
{
    /* not implemented */
    while (1);
}
 
/** Construct function pointer
 *
 * @param fptr   function pointer structure
 * @param addr   function address
 * @param caller calling function address
 *
 * @return address of the function pointer
 *
 */
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
{
    return addr;
}
 
/** Acquire console back for kernel. */
void arch_grab_console(void)
{
    machine_grab_console();
#ifdef CONFIG_FB
    fb_redraw();
#endif
}
 
/** Return console to userspace. */
void arch_release_console(void)
{
    machine_release_console();
}
 
/** @}
 */
 

Rev 4311	Rev 4669
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 <genarch/fb/fb.h>	38	#include <genarch/fb/fb.h>
39	#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>	40	#include <sysinfo/sysinfo.h>
44	#include <console/console.h>	41	#include <console/console.h>
45	#include <ddi/irq.h>	42	#include <ddi/irq.h>
46	#include <arch/drivers/gxemul.h>	43	#include <arch/machine.h>
47	#include <print.h>	44	#include <print.h>
48	#include <config.h>	45	#include <config.h>
49	#include <interrupt.h>	46	#include <interrupt.h>
50	#include <arch/regutils.h>	47	#include <arch/regutils.h>
51	#include <userspace.h>	48	#include <userspace.h>
52	#include <macros.h>	49	#include <macros.h>
53	#include <string.h>	50	#include <string.h>
54		51
55	/** Performs arm32-specific initialization before main_bsp() is called. */	52	/** Performs arm32-specific initialization before main_bsp() is called. */
56	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)	53	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
57	{	54	{
58	unsigned int i;	55	unsigned int i;
59		56
60	init.cnt = bootinfo->cnt;	57	init.cnt = bootinfo->cnt;
61		58
62	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {	59	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
63	init.tasks[i].addr = bootinfo->tasks[i].addr;	60	init.tasks[i].addr = bootinfo->tasks[i].addr;
64	init.tasks[i].size = bootinfo->tasks[i].size;	61	init.tasks[i].size = bootinfo->tasks[i].size;
65	str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,	62	str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
66	bootinfo->tasks[i].name);	63	bootinfo->tasks[i].name);
67	}	64	}
68	}	65	}
69		66
70	/** Performs arm32 specific initialization before mm is initialized. */	67	/** Performs arm32 specific initialization before mm is initialized. */
71	void arch_pre_mm_init(void)	68	void arch_pre_mm_init(void)
72	{	69	{
73	/* It is not assumed by default */	70	/* It is not assumed by default */
74	interrupts_disable();	71	interrupts_disable();
75	}	72	}
76		73
77	/** Performs arm32 specific initialization afterr mm is initialized. */	74	/** Performs arm32 specific initialization afterr mm is initialized. */
78	void arch_post_mm_init(void)	75	void arch_post_mm_init(void)
79	{	76	{
80	gxemul_init();	77	machine_init();
81		78
82	/* Initialize exception dispatch table */	79	/* Initialize exception dispatch table */
83	exception_init();	80	exception_init();
84	interrupt_init();	81	interrupt_init();
85		82
86	#ifdef CONFIG_FB	83	#ifdef CONFIG_FB
87	fb_properties_t prop = {	-
88	.addr = GXEMUL_FB_ADDRESS,	-
89	.offset = 0,	-
90	.x = 640,	-
91	.y = 480,	-
92	.scan = 1920,	-
93	.visual = VISUAL_BGR_8_8_8,	-
94	};	-
95	fb_init(&prop);	84	machine_fb_init();
96	#else	85	#else
97	#ifdef CONFIG_ARM_PRN	86	#ifdef CONFIG_ARM_PRN
98	dsrlnout_init((ioport8_t *) gxemul_kbd);	87	machine_output_init();
99	#endif /* CONFIG_ARM_PRN */	88	#endif /* CONFIG_ARM_PRN */
100	#endif /* CONFIG_FB */	89	#endif /* CONFIG_FB */
101	}	90	}
102		91
103	/** Performs arm32 specific tasks needed after cpu is initialized.	92	/** Performs arm32 specific tasks needed after cpu is initialized.
104	*	93	*
105	* Currently the function is empty.	94	* Currently the function is empty.
106	*/	95	*/
107	void arch_post_cpu_init(void)	96	void arch_post_cpu_init(void)
108	{	97	{
109	}	98	}
110		99
111		100
112	/** Performs arm32 specific tasks needed before the multiprocessing is	101	/** Performs arm32 specific tasks needed before the multiprocessing is
113	* initialized.	102	* initialized.
114	*	103	*
115	* Currently the function is empty because SMP is not supported.	104	* Currently the function is empty because SMP is not supported.
116	*/	105	*/
117	void arch_pre_smp_init(void)	106	void arch_pre_smp_init(void)
118	{	107	{
119	}	108	}
120		109
121		110
122	/** Performs arm32 specific tasks needed after the multiprocessing is	111	/** Performs arm32 specific tasks needed after the multiprocessing is
123	* initialized.	112	* initialized.
124	*	113	*
125	* Currently the function is empty because SMP is not supported.	114	* Currently the function is empty because SMP is not supported.
126	*/	115	*/
127	void arch_post_smp_init(void)	116	void arch_post_smp_init(void)
128	{	117	{
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();	118	machine_input_init();
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	-
153	}	119	}
154		120
155		121
156	/** Performs arm32 specific tasks needed before the new task is run. */	122	/** Performs arm32 specific tasks needed before the new task is run. */
157	void before_task_runs_arch(void)	123	void before_task_runs_arch(void)
158	{	124	{
159	tlb_invalidate_all();	-
160	}	125	}
161		126
162		127
163	/** Performs arm32 specific tasks needed before the new thread is scheduled.	128	/** Performs arm32 specific tasks needed before the new thread is scheduled.
164	*	129	*
165	* It sets supervisor_sp.	130	* It sets supervisor_sp.
166	*/	131	*/
167	void before_thread_runs_arch(void)	132	void before_thread_runs_arch(void)
168	{	133	{
169	uint8_t *stck;	134	uint8_t *stck;
170		135
-		136	tlb_invalidate_all();
171	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	137	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
172	supervisor_sp = (uintptr_t) stck;	138	supervisor_sp = (uintptr_t) stck;
173	}	139	}
174		140
175	/** Performs arm32 specific tasks before a thread stops running.	141	/** Performs arm32 specific tasks before a thread stops running.
176	*	142	*
177	* Currently the function is empty.	143	* Currently the function is empty.
178	*/	144	*/
179	void after_thread_ran_arch(void)	145	void after_thread_ran_arch(void)
180	{	146	{
181	}	147	}
182		148
183	/** Halts CPU. */	149	/** Halts CPU. */
184	void cpu_halt(void)	150	void cpu_halt(void)
185	{	151	{
186	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))	152	machine_cpu_halt();
187	= 0;	-
188	}	153	}
189		154
190	/** Reboot. */	155	/** Reboot. */
191	void arch_reboot()	156	void arch_reboot()
192	{	157	{
193	/* not implemented */	158	/* not implemented */
194	while (1);	159	while (1);
195	}	160	}
196		161
197	/** Construct function pointer	162	/** Construct function pointer
198	*	163	*
199	* @param fptr function pointer structure	164	* @param fptr function pointer structure
200	* @param addr function address	165	* @param addr function address
201	* @param caller calling function address	166	* @param caller calling function address
202	*	167	*
203	* @return address of the function pointer	168	* @return address of the function pointer
204	*	169	*
205	*/	170	*/
206	void arch_construct_function(fncptr_t fptr, void addr, void caller)	171	void arch_construct_function(fncptr_t fptr, void addr, void caller)
207	{	172	{
208	return addr;	173	return addr;
209	}	174	}
210		175
211	/** Acquire console back for kernel. */	176	/** Acquire console back for kernel. */
212	void arch_grab_console(void)	177	void arch_grab_console(void)
213	{	178	{
-		179	machine_grab_console();
214	#ifdef CONFIG_FB	180	#ifdef CONFIG_FB
215	fb_redraw();	181	fb_redraw();
216	#endif	182	#endif
217	}	183	}
218		184
219	/** Return console to userspace. */	185	/** Return console to userspace. */
220	void arch_release_console(void)	186	void arch_release_console(void)
221	{	187	{
-		188	machine_release_console();
222	}	189	}
223		190
224	/** @}	191	/** @}
225	*/	192	*/
226		193

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(root)/trunk/kernel/arch/arm32/src/arm32.c @ 2465 – Rev 4311 → 4669