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 <ddi/device.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
    devno_t devno = device_assign_devno();
   
    /*
     * 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, devno, 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.devno", NULL, devno);
    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 4345	Rev 4346
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 <genarch/drivers/dsrln/dsrlnin.h>
-		43	#include <genarch/drivers/dsrln/dsrlnout.h>
-		44	#include <genarch/srln/srln.h>
-		45	#include <sysinfo/sysinfo.h>
42	#include <ddi/irq.h>	46	#include <ddi/irq.h>
43	#include <arch/debug/print.h>	47	#include <arch/drivers/gxemul.h>
44	#include <print.h>	48	#include <print.h>
45	#include <config.h>	49	#include <config.h>
46	#include <interrupt.h>	50	#include <interrupt.h>
47	#include <arch/regutils.h>	51	#include <arch/regutils.h>
48	#include <arch/machine.h>	-
49	#include <userspace.h>	52	#include <userspace.h>
50	#include <macros.h>	53	#include <macros.h>
51	#include <string.h>	54	#include <string.h>
52		55
53	/** Performs arm32-specific initialization before main_bsp() is called. */	56	/** Performs arm32-specific initialization before main_bsp() is called. */
54	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)	57	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
55	{	58	{
56	unsigned int i;	59	unsigned int i;
57		60
58	init.cnt = bootinfo->cnt;	61	init.cnt = bootinfo->cnt;
59		62
60	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {	63	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
61	init.tasks[i].addr = bootinfo->tasks[i].addr;	64	init.tasks[i].addr = bootinfo->tasks[i].addr;
62	init.tasks[i].size = bootinfo->tasks[i].size;	65	init.tasks[i].size = bootinfo->tasks[i].size;
63	strncpy(init.tasks[i].name, bootinfo->tasks[i].name,	66	strncpy(init.tasks[i].name, bootinfo->tasks[i].name,
64	CONFIG_TASK_NAME_BUFLEN);	67	CONFIG_TASK_NAME_BUFLEN);
65	}	68	}
66	}	69	}
67		70
68	/** Performs arm32 specific initialization before mm is initialized. */	71	/** Performs arm32 specific initialization before mm is initialized. */
69	void arch_pre_mm_init(void)	72	void arch_pre_mm_init(void)
70	{	73	{
71	/* It is not assumed by default */	74	/* It is not assumed by default */
72	interrupts_disable();	75	interrupts_disable();
73	}	76	}
74		77
75	/** Performs arm32 specific initialization afterr mm is initialized. */	78	/** Performs arm32 specific initialization afterr mm is initialized. */
76	void arch_post_mm_init(void)	79	void arch_post_mm_init(void)
77	{	80	{
78	machine_hw_map_init();	81	gxemul_init();
79		82
80	/* Initialize exception dispatch table */	83	/* Initialize exception dispatch table */
81	exception_init();	84	exception_init();
82		-
83	interrupt_init();	85	interrupt_init();
84		86
85	console_init(device_assign_devno());	-
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 = GXEMUL_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	#else
-		98	#ifdef CONFIG_ARM_PRN
-		99	dsrlnout_init((ioport8_t *) gxemul_kbd);
-		100	#endif /* CONFIG_ARM_PRN */
-		101	#endif /* CONFIG_FB */
98	}	102	}
99		103
100	/** Performs arm32 specific tasks needed after cpu is initialized.	104	/** Performs arm32 specific tasks needed after cpu is initialized.
101	*	105	*
102	* Currently the function is empty.	106	* Currently the function is empty.
103	*/	107	*/
104	void arch_post_cpu_init(void)	108	void arch_post_cpu_init(void)
105	{	109	{
106	}	110	}
107		111
108		112
109	/** Performs arm32 specific tasks needed before the multiprocessing is	113	/** Performs arm32 specific tasks needed before the multiprocessing is
110	* initialized.	114	* initialized.
111	*	115	*
112	* Currently the function is empty because SMP is not supported.	116	* Currently the function is empty because SMP is not supported.
113	*/	117	*/
114	void arch_pre_smp_init(void)	118	void arch_pre_smp_init(void)
115	{	119	{
116	}	120	}
117		121
118		122
119	/** Performs arm32 specific tasks needed after the multiprocessing is	123	/** Performs arm32 specific tasks needed after the multiprocessing is
120	* initialized.	124	* initialized.
121	*	125	*
122	* Currently the function is empty because SMP is not supported.	126	* Currently the function is empty because SMP is not supported.
123	*/	127	*/
124	void arch_post_smp_init(void)	128	void arch_post_smp_init(void)
125	{	129	{
-		130	#ifdef CONFIG_ARM_KBD
-		131	devno_t devno = device_assign_devno();
-		132
-		133	/*
-		134	* Initialize the msim/GXemul keyboard port. Then initialize the serial line
-		135	* module and connect it to the msim/GXemul keyboard. Enable keyboard interrupts.
-		136	*/
-		137	indev_t kbrdin = dsrlnin_init((dsrlnin_t ) gxemul_kbd, devno, GXEMUL_KBD_IRQ);
-		138	if (kbrdin)
-		139	srln_init(kbrdin);
-		140
-		141	/*
-		142	* This is the necessary evil until the userspace driver is entirely
-		143	* self-sufficient.
-		144	*/
-		145	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);
-		148	sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);
-		149	#endif
126	}	150	}
127		151
128		152
129	/** Performs arm32 specific tasks needed before the new task is run. */	153	/** Performs arm32 specific tasks needed before the new task is run. */
130	void before_task_runs_arch(void)	154	void before_task_runs_arch(void)
131	{	155	{
132	tlb_invalidate_all();	156	tlb_invalidate_all();
133	}	157	}
134		158
135		159
136	/** Performs arm32 specific tasks needed before the new thread is scheduled.	160	/** Performs arm32 specific tasks needed before the new thread is scheduled.
137	*	161	*
138	* It sets supervisor_sp.	162	* It sets supervisor_sp.
139	*/	163	*/
140	void before_thread_runs_arch(void)	164	void before_thread_runs_arch(void)
141	{	165	{
142	uint8_t *stck;	166	uint8_t *stck;
143		167
144	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	168	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
145	supervisor_sp = (uintptr_t) stck;	169	supervisor_sp = (uintptr_t) stck;
146	}	170	}
147		171
148	/** Performs arm32 specific tasks before a thread stops running.	172	/** Performs arm32 specific tasks before a thread stops running.
149	*	173	*
150	* Currently the function is empty.	174	* Currently the function is empty.
151	*/	175	*/
152	void after_thread_ran_arch(void)	176	void after_thread_ran_arch(void)
153	{	177	{
154	}	178	}
155		179
156	/** Halts CPU. */	180	/** Halts CPU. */
157	void cpu_halt(void)	181	void cpu_halt(void)
158	{	182	{
159	machine_cpu_halt();	183	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))
-		184	= 0;
160	}	185	}
161		186
162	/** Reboot. */	187	/** Reboot. */
163	void arch_reboot()	188	void arch_reboot()
164	{	189	{
165	/* not implemented */	190	/* not implemented */
166	while (1);	191	while (1);
167	}	192	}
168		193
169	/** Construct function pointer	194	/** Construct function pointer
170	*	195	*
171	* @param fptr function pointer structure	196	* @param fptr function pointer structure
172	* @param addr function address	197	* @param addr function address
173	* @param caller calling function address	198	* @param caller calling function address
174	*	199	*
175	* @return address of the function pointer	200	* @return address of the function pointer
176	*	201	*
177	*/	202	*/
178	void arch_construct_function(fncptr_t fptr, void addr, void caller)	203	void arch_construct_function(fncptr_t fptr, void addr, void caller)
179	{	204	{
180	return addr;	205	return addr;
181	}	206	}
182		207
183	/** @}	208	/** @}
184	*/	209	*/
185		210

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(root)/branches/dynload/kernel/arch/arm32/src/arm32.c – Rev 4345 → 4346