WebSVN – HelenOS – Diff – /branches/dynload/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 <arch/console.h>
 
#include <genarch/fb/fb.h>
#include <genarch/fb/visuals.h>
#include <genarch/drivers/dsrln/dsrlnin.h>
#include <genarch/drivers/dsrln/dsrlnout.h>
#include <genarch/srln/srln.h>
#include <sysinfo/sysinfo.h>
#include <ddi/irq.h>
#include <arch/drivers/gxemul.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;
        strncpy(init.tasks[i].name, bootinfo->tasks[i].name,
            CONFIG_TASK_NAME_BUFLEN);
    }
}
 
/** 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)
{
    gxemul_init();
   
    /* Initialize exception dispatch table */
    exception_init();
    interrupt_init();
   
#ifdef CONFIG_FB
    fb_properties_t prop = {
        .addr = GXEMUL_FB_ADDRESS,
        .offset = 0,
        .x = 640,
        .y = 480,
        .scan = 1920,
        .visual = VISUAL_BGR_8_8_8,
    };
    fb_init(&prop);
#else
#ifdef CONFIG_ARM_PRN
    dsrlnout_init((ioport8_t *) gxemul_kbd);
#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)
{
#ifdef CONFIG_ARM_KBD
 
 
    /*
     * Initialize the msim/GXemul keyboard port. Then initialize the serial line
     * module and connect it to the msim/GXemul keyboard. Enable keyboard interrupts.
     */
    indev_t *kbrdin = dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ);
    if (kbrdin)
        srln_init(kbrdin);
   
    /*
     * This is the necessary evil until the userspace driver is entirely
     * self-sufficient.
     */
    sysinfo_set_item_val("kbd", NULL, true);
 
    sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
    sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);
#endif
}
 
 
/** Performs arm32 specific tasks needed before the new task is run. */
void before_task_runs_arch(void)
{
    tlb_invalidate_all();
}
 
 
/** Performs arm32 specific tasks needed before the new thread is scheduled.
 *
 * It sets supervisor_sp.
 */
void before_thread_runs_arch(void)
{
    uint8_t *stck;
   
    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)
{
    *((char *) (gxemul_kbd + GXEMUL_HALT_OFFSET))
        = 0;
}
 
/** 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;
}
 
/** @}
 */
 

Rev 4346	Rev 4347
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>	-
40	#include <genarch/fb/fb.h>	39	#include <genarch/fb/fb.h>
41	#include <genarch/fb/visuals.h>	40	#include <genarch/fb/visuals.h>
42	#include <genarch/drivers/dsrln/dsrlnin.h>	41	#include <genarch/drivers/dsrln/dsrlnin.h>
43	#include <genarch/drivers/dsrln/dsrlnout.h>	42	#include <genarch/drivers/dsrln/dsrlnout.h>
44	#include <genarch/srln/srln.h>	43	#include <genarch/srln/srln.h>
45	#include <sysinfo/sysinfo.h>	44	#include <sysinfo/sysinfo.h>
46	#include <ddi/irq.h>	45	#include <ddi/irq.h>
47	#include <arch/drivers/gxemul.h>	46	#include <arch/drivers/gxemul.h>
48	#include <print.h>	47	#include <print.h>
49	#include <config.h>	48	#include <config.h>
50	#include <interrupt.h>	49	#include <interrupt.h>
51	#include <arch/regutils.h>	50	#include <arch/regutils.h>
52	#include <userspace.h>	51	#include <userspace.h>
53	#include <macros.h>	52	#include <macros.h>
54	#include <string.h>	53	#include <string.h>
55		54
56	/** Performs arm32-specific initialization before main_bsp() is called. */	55	/** Performs arm32-specific initialization before main_bsp() is called. */
57	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)	56	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
58	{	57	{
59	unsigned int i;	58	unsigned int i;
60		59
61	init.cnt = bootinfo->cnt;	60	init.cnt = bootinfo->cnt;
62		61
63	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {	62	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
64	init.tasks[i].addr = bootinfo->tasks[i].addr;	63	init.tasks[i].addr = bootinfo->tasks[i].addr;
65	init.tasks[i].size = bootinfo->tasks[i].size;	64	init.tasks[i].size = bootinfo->tasks[i].size;
66	strncpy(init.tasks[i].name, bootinfo->tasks[i].name,	65	strncpy(init.tasks[i].name, bootinfo->tasks[i].name,
67	CONFIG_TASK_NAME_BUFLEN);	66	CONFIG_TASK_NAME_BUFLEN);
68	}	67	}
69	}	68	}
70		69
71	/** Performs arm32 specific initialization before mm is initialized. */	70	/** Performs arm32 specific initialization before mm is initialized. */
72	void arch_pre_mm_init(void)	71	void arch_pre_mm_init(void)
73	{	72	{
74	/* It is not assumed by default */	73	/* It is not assumed by default */
75	interrupts_disable();	74	interrupts_disable();
76	}	75	}
77		76
78	/** Performs arm32 specific initialization afterr mm is initialized. */	77	/** Performs arm32 specific initialization afterr mm is initialized. */
79	void arch_post_mm_init(void)	78	void arch_post_mm_init(void)
80	{	79	{
81	gxemul_init();	80	gxemul_init();
82		81
83	/* Initialize exception dispatch table */	82	/* Initialize exception dispatch table */
84	exception_init();	83	exception_init();
85	interrupt_init();	84	interrupt_init();
86		85
87	#ifdef CONFIG_FB	86	#ifdef CONFIG_FB
88	fb_properties_t prop = {	87	fb_properties_t prop = {
89	.addr = GXEMUL_FB_ADDRESS,	88	.addr = GXEMUL_FB_ADDRESS,
90	.offset = 0,	89	.offset = 0,
91	.x = 640,	90	.x = 640,
92	.y = 480,	91	.y = 480,
93	.scan = 1920,	92	.scan = 1920,
94	.visual = VISUAL_BGR_8_8_8,	93	.visual = VISUAL_BGR_8_8_8,
95	};	94	};
96	fb_init(&prop);	95	fb_init(&prop);
97	#else	96	#else
98	#ifdef CONFIG_ARM_PRN	97	#ifdef CONFIG_ARM_PRN
99	dsrlnout_init((ioport8_t *) gxemul_kbd);	98	dsrlnout_init((ioport8_t *) gxemul_kbd);
100	#endif /* CONFIG_ARM_PRN */	99	#endif /* CONFIG_ARM_PRN */
101	#endif /* CONFIG_FB */	100	#endif /* CONFIG_FB */
102	}	101	}
103		102
104	/** Performs arm32 specific tasks needed after cpu is initialized.	103	/** Performs arm32 specific tasks needed after cpu is initialized.
105	*	104	*
106	* Currently the function is empty.	105	* Currently the function is empty.
107	*/	106	*/
108	void arch_post_cpu_init(void)	107	void arch_post_cpu_init(void)
109	{	108	{
110	}	109	}
111		110
112		111
113	/** Performs arm32 specific tasks needed before the multiprocessing is	112	/** Performs arm32 specific tasks needed before the multiprocessing is
114	* initialized.	113	* initialized.
115	*	114	*
116	* Currently the function is empty because SMP is not supported.	115	* Currently the function is empty because SMP is not supported.
117	*/	116	*/
118	void arch_pre_smp_init(void)	117	void arch_pre_smp_init(void)
119	{	118	{
120	}	119	}
121		120
122		121
123	/** Performs arm32 specific tasks needed after the multiprocessing is	122	/** Performs arm32 specific tasks needed after the multiprocessing is
124	* initialized.	123	* initialized.
125	*	124	*
126	* Currently the function is empty because SMP is not supported.	125	* Currently the function is empty because SMP is not supported.
127	*/	126	*/
128	void arch_post_smp_init(void)	127	void arch_post_smp_init(void)
129	{	128	{
130	#ifdef CONFIG_ARM_KBD	129	#ifdef CONFIG_ARM_KBD
131	devno_t devno = device_assign_devno();	-
132		-
133	/*	130	/*
134	* Initialize the msim/GXemul keyboard port. Then initialize the serial line	131	* Initialize the msim/GXemul keyboard port. Then initialize the serial line
135	* module and connect it to the msim/GXemul keyboard. Enable keyboard interrupts.	132	* module and connect it to the msim/GXemul keyboard. Enable keyboard interrupts.
136	*/	133	*/
137	indev_t kbrdin = dsrlnin_init((dsrlnin_t ) gxemul_kbd, devno, GXEMUL_KBD_IRQ);	134	indev_t kbrdin = dsrlnin_init((dsrlnin_t ) gxemul_kbd, GXEMUL_KBD_IRQ);
138	if (kbrdin)	135	if (kbrdin)
139	srln_init(kbrdin);	136	srln_init(kbrdin);
140		137
141	/*	138	/*
142	* This is the necessary evil until the userspace driver is entirely	139	* This is the necessary evil until the userspace driver is entirely
143	* self-sufficient.	140	* self-sufficient.
144	*/	141	*/
145	sysinfo_set_item_val("kbd", NULL, true);	142	sysinfo_set_item_val("kbd", NULL, true);
146	sysinfo_set_item_val("kbd.devno", NULL, devno);	-
147	sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);	143	sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
148	sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);	144	sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);
149	#endif	145	#endif
150	}	146	}
151		147
152		148
153	/** Performs arm32 specific tasks needed before the new task is run. */	149	/** Performs arm32 specific tasks needed before the new task is run. */
154	void before_task_runs_arch(void)	150	void before_task_runs_arch(void)
155	{	151	{
156	tlb_invalidate_all();	152	tlb_invalidate_all();
157	}	153	}
158		154
159		155
160	/** Performs arm32 specific tasks needed before the new thread is scheduled.	156	/** Performs arm32 specific tasks needed before the new thread is scheduled.
161	*	157	*
162	* It sets supervisor_sp.	158	* It sets supervisor_sp.
163	*/	159	*/
164	void before_thread_runs_arch(void)	160	void before_thread_runs_arch(void)
165	{	161	{
166	uint8_t *stck;	162	uint8_t *stck;
167		163
168	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	164	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
169	supervisor_sp = (uintptr_t) stck;	165	supervisor_sp = (uintptr_t) stck;
170	}	166	}
171		167
172	/** Performs arm32 specific tasks before a thread stops running.	168	/** Performs arm32 specific tasks before a thread stops running.
173	*	169	*
174	* Currently the function is empty.	170	* Currently the function is empty.
175	*/	171	*/
176	void after_thread_ran_arch(void)	172	void after_thread_ran_arch(void)
177	{	173	{
178	}	174	}
179		175
180	/** Halts CPU. */	176	/** Halts CPU. */
181	void cpu_halt(void)	177	void cpu_halt(void)
182	{	178	{
183	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))	179	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))
184	= 0;	180	= 0;
185	}	181	}
186		182
187	/** Reboot. */	183	/** Reboot. */
188	void arch_reboot()	184	void arch_reboot()
189	{	185	{
190	/* not implemented */	186	/* not implemented */
191	while (1);	187	while (1);
192	}	188	}
193		189
194	/** Construct function pointer	190	/** Construct function pointer
195	*	191	*
196	* @param fptr function pointer structure	192	* @param fptr function pointer structure
197	* @param addr function address	193	* @param addr function address
198	* @param caller calling function address	194	* @param caller calling function address
199	*	195	*
200	* @return address of the function pointer	196	* @return address of the function pointer
201	*	197	*
202	*/	198	*/
203	void arch_construct_function(fncptr_t fptr, void addr, void caller)	199	void arch_construct_function(fncptr_t fptr, void addr, void caller)
204	{	200	{
205	return addr;	201	return addr;
206	}	202	}
207		203
208	/** @}	204	/** @}
209	*/	205	*/
210		206

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(root)/branches/dynload/kernel/arch/arm32/src/arm32.c @ 4346 – Rev 4346 → 4347