WebSVN – HelenOS – Diff – /branches/network/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 <genarch/drivers/dsrln/dsrlnin.h>
#include <genarch/drivers/dsrln/dsrlnout.h>
#include <genarch/srln/srln.h>
#include <sysinfo/sysinfo.h>
#include <console/console.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;
        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)
{
    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 GXemul keyboard port. Then initialize the serial line
     * module and connect it to the GXemul keyboard.
     */
    dsrlnin_instance_t *dsrlnin_instance
        = dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ);
    if (dsrlnin_instance) {
        srln_instance_t *srln_instance = srln_init();
        if (srln_instance) {
            indev_t *sink = stdin_wire();
            indev_t *srln = srln_wire(srln_instance, sink);
            dsrlnin_wire(dsrlnin_instance, srln);
        }
    }
   
    /*
     * 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;
}
 
/** Acquire console back for kernel. */
void arch_grab_console(void)
{
#ifdef CONFIG_FB
    fb_redraw();
#endif
}
 
/** Return console to userspace. */
void arch_release_console(void)
{
}
 
/** @}
 */
 

Rev 4263	Rev 4327
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>	-
39	#include <genarch/fb/fb.h>	38	#include <genarch/fb/fb.h>
40	#include <genarch/fb/visuals.h>	39	#include <genarch/fb/visuals.h>
41	#include <genarch/drivers/dsrln/dsrlnin.h>	40	#include <genarch/drivers/dsrln/dsrlnin.h>
42	#include <genarch/drivers/dsrln/dsrlnout.h>	41	#include <genarch/drivers/dsrln/dsrlnout.h>
43	#include <genarch/srln/srln.h>	42	#include <genarch/srln/srln.h>
44	#include <sysinfo/sysinfo.h>	43	#include <sysinfo/sysinfo.h>
-		44	#include <console/console.h>
45	#include <ddi/irq.h>	45	#include <ddi/irq.h>
46	#include <arch/drivers/gxemul.h>	46	#include <arch/drivers/gxemul.h>
47	#include <print.h>	47	#include <print.h>
48	#include <config.h>	48	#include <config.h>
49	#include <interrupt.h>	49	#include <interrupt.h>
50	#include <arch/regutils.h>	50	#include <arch/regutils.h>
51	#include <userspace.h>	51	#include <userspace.h>
52	#include <macros.h>	52	#include <macros.h>
53	#include <string.h>	53	#include <string.h>
54		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 entry __attribute__((unused)), bootinfo_t bootinfo)	56	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
57	{	57	{
58	unsigned int i;	58	unsigned int i;
59		59
60	init.cnt = bootinfo->cnt;	60	init.cnt = bootinfo->cnt;
61		61
62	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) {
63	init.tasks[i].addr = bootinfo->tasks[i].addr;	63	init.tasks[i].addr = bootinfo->tasks[i].addr;
64	init.tasks[i].size = bootinfo->tasks[i].size;	64	init.tasks[i].size = bootinfo->tasks[i].size;
65	str_ncpy(init.tasks[i].name, bootinfo->tasks[i].name,	65	str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
66	CONFIG_TASK_NAME_BUFLEN);	66	bootinfo->tasks[i].name);
67	}	67	}
68	}	68	}
69		69
70	/** Performs arm32 specific initialization before mm is initialized. */	70	/** Performs arm32 specific initialization before mm is initialized. */
71	void arch_pre_mm_init(void)	71	void arch_pre_mm_init(void)
72	{	72	{
73	/* It is not assumed by default */	73	/* It is not assumed by default */
74	interrupts_disable();	74	interrupts_disable();
75	}	75	}
76		76
77	/** Performs arm32 specific initialization afterr mm is initialized. */	77	/** Performs arm32 specific initialization afterr mm is initialized. */
78	void arch_post_mm_init(void)	78	void arch_post_mm_init(void)
79	{	79	{
80	gxemul_init();	80	gxemul_init();
81		81
82	/* Initialize exception dispatch table */	82	/* Initialize exception dispatch table */
83	exception_init();	83	exception_init();
84	interrupt_init();	84	interrupt_init();
85		85
86	#ifdef CONFIG_FB	86	#ifdef CONFIG_FB
87	fb_properties_t prop = {	87	fb_properties_t prop = {
88	.addr = GXEMUL_FB_ADDRESS,	88	.addr = GXEMUL_FB_ADDRESS,
89	.offset = 0,	89	.offset = 0,
90	.x = 640,	90	.x = 640,
91	.y = 480,	91	.y = 480,
92	.scan = 1920,	92	.scan = 1920,
93	.visual = VISUAL_BGR_8_8_8,	93	.visual = VISUAL_BGR_8_8_8,
94	};	94	};
95	fb_init(&prop);	95	fb_init(&prop);
96	#else	96	#else
97	#ifdef CONFIG_ARM_PRN	97	#ifdef CONFIG_ARM_PRN
98	dsrlnout_init((ioport8_t *) gxemul_kbd);	98	dsrlnout_init((ioport8_t *) gxemul_kbd);
99	#endif /* CONFIG_ARM_PRN */	99	#endif /* CONFIG_ARM_PRN */
100	#endif /* CONFIG_FB */	100	#endif /* CONFIG_FB */
101	}	101	}
102		102
103	/** Performs arm32 specific tasks needed after cpu is initialized.	103	/** Performs arm32 specific tasks needed after cpu is initialized.
104	*	104	*
105	* Currently the function is empty.	105	* Currently the function is empty.
106	*/	106	*/
107	void arch_post_cpu_init(void)	107	void arch_post_cpu_init(void)
108	{	108	{
109	}	109	}
110		110
111		111
112	/** Performs arm32 specific tasks needed before the multiprocessing is	112	/** Performs arm32 specific tasks needed before the multiprocessing is
113	* initialized.	113	* initialized.
114	*	114	*
115	* Currently the function is empty because SMP is not supported.	115	* Currently the function is empty because SMP is not supported.
116	*/	116	*/
117	void arch_pre_smp_init(void)	117	void arch_pre_smp_init(void)
118	{	118	{
119	}	119	}
120		120
121		121
122	/** Performs arm32 specific tasks needed after the multiprocessing is	122	/** Performs arm32 specific tasks needed after the multiprocessing is
123	* initialized.	123	* initialized.
124	*	124	*
125	* Currently the function is empty because SMP is not supported.	125	* Currently the function is empty because SMP is not supported.
126	*/	126	*/
127	void arch_post_smp_init(void)	127	void arch_post_smp_init(void)
128	{	128	{
129	#ifdef CONFIG_ARM_KBD	129	#ifdef CONFIG_ARM_KBD
130	/*	130	/*
131	* Initialize the GXemul keyboard port. Then initialize the serial line	131	* Initialize the GXemul keyboard port. Then initialize the serial line
132	* module and connect it to the GXemul keyboard. Enable keyboard interrupts.	132	* module and connect it to the GXemul keyboard.
133	*/	133	*/
-		134	dsrlnin_instance_t *dsrlnin_instance
134	indev_t kbrdin = dsrlnin_init((dsrlnin_t ) gxemul_kbd, GXEMUL_KBD_IRQ);	135	= dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ);
135	if (kbrdin)	136	if (dsrlnin_instance) {
-		137	srln_instance_t *srln_instance = srln_init();
136	srln_init(kbrdin);	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	}
137		144
138	/*	145	/*
139	* This is the necessary evil until the userspace driver is entirely	146	* This is the necessary evil until the userspace driver is entirely
140	* self-sufficient.	147	* self-sufficient.
141	*/	148	*/
142	sysinfo_set_item_val("kbd", NULL, true);	149	sysinfo_set_item_val("kbd", NULL, true);
143	sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);	150	sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
144	sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);	151	sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);
145	#endif	152	#endif
146	}	153	}
147		154
148		155
149	/** Performs arm32 specific tasks needed before the new task is run. */	156	/** Performs arm32 specific tasks needed before the new task is run. */
150	void before_task_runs_arch(void)	157	void before_task_runs_arch(void)
151	{	158	{
152	tlb_invalidate_all();	159	tlb_invalidate_all();
153	}	160	}
154		161
155		162
156	/** Performs arm32 specific tasks needed before the new thread is scheduled.	163	/** Performs arm32 specific tasks needed before the new thread is scheduled.
157	*	164	*
158	* It sets supervisor_sp.	165	* It sets supervisor_sp.
159	*/	166	*/
160	void before_thread_runs_arch(void)	167	void before_thread_runs_arch(void)
161	{	168	{
162	uint8_t *stck;	169	uint8_t *stck;
163		170
164	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];	171	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
165	supervisor_sp = (uintptr_t) stck;	172	supervisor_sp = (uintptr_t) stck;
166	}	173	}
167		174
168	/** Performs arm32 specific tasks before a thread stops running.	175	/** Performs arm32 specific tasks before a thread stops running.
169	*	176	*
170	* Currently the function is empty.	177	* Currently the function is empty.
171	*/	178	*/
172	void after_thread_ran_arch(void)	179	void after_thread_ran_arch(void)
173	{	180	{
174	}	181	}
175		182
176	/** Halts CPU. */	183	/** Halts CPU. */
177	void cpu_halt(void)	184	void cpu_halt(void)
178	{	185	{
179	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))	186	((char ) (gxemul_kbd + GXEMUL_HALT_OFFSET))
180	= 0;	187	= 0;
181	}	188	}
182		189
183	/** Reboot. */	190	/** Reboot. */
184	void arch_reboot()	191	void arch_reboot()
185	{	192	{
186	/* not implemented */	193	/* not implemented */
187	while (1);	194	while (1);
188	}	195	}
189		196
190	/** Construct function pointer	197	/** Construct function pointer
191	*	198	*
192	* @param fptr function pointer structure	199	* @param fptr function pointer structure
193	* @param addr function address	200	* @param addr function address
194	* @param caller calling function address	201	* @param caller calling function address
195	*	202	*
196	* @return address of the function pointer	203	* @return address of the function pointer
197	*	204	*
198	*/	205	*/
199	void arch_construct_function(fncptr_t fptr, void addr, void caller)	206	void arch_construct_function(fncptr_t fptr, void addr, void caller)
200	{	207	{
201	return addr;	208	return addr;
202	}	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	{
-		222	}
203		223
204	/** @}	224	/** @}
205	*/	225	*/
206		226

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(root)/branches/network/kernel/arch/arm32/src/arm32.c @ 4718 – Rev 4263 → 4327