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/*
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/*
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 * Copyright (c) 2007 Michal Kebrt
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 * Copyright (c) 2007 Michal Kebrt
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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 *
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 *
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 * - Redistributions of source code must retain the above copyright
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *   derived from this software without specific prior written permission.
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 *
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup arm32
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/** @addtogroup arm32
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 * @{
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 * @{
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 */
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 */
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/** @file
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/** @file
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 *  @brief ARM32 architecture specific functions.
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 *  @brief ARM32 architecture specific functions.
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 */
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 */
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#include <arch.h>
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#include <arch.h>
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#include <config.h>
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#include <config.h>
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#include <arch/console.h>
-
 
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#include <genarch/fb/fb.h>
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#include <genarch/fb/fb.h>
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#include <genarch/fb/visuals.h>
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#include <genarch/fb/visuals.h>
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#include <genarch/drivers/dsrln/dsrlnin.h>
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#include <genarch/drivers/dsrln/dsrlnin.h>
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#include <genarch/drivers/dsrln/dsrlnout.h>
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#include <genarch/drivers/dsrln/dsrlnout.h>
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#include <genarch/srln/srln.h>
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#include <genarch/srln/srln.h>
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#include <sysinfo/sysinfo.h>
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#include <sysinfo/sysinfo.h>
-
 
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#include <console/console.h>
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#include <ddi/irq.h>
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#include <ddi/irq.h>
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#include <arch/drivers/gxemul.h>
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#include <arch/drivers/gxemul.h>
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#include <print.h>
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#include <print.h>
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#include <config.h>
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#include <config.h>
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#include <interrupt.h>
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#include <interrupt.h>
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#include <arch/regutils.h>
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#include <arch/regutils.h>
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#include <userspace.h>
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#include <userspace.h>
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#include <macros.h>
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#include <macros.h>
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#include <string.h>
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#include <string.h>
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/** Performs arm32-specific initialization before main_bsp() is called. */
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/** Performs arm32-specific initialization before main_bsp() is called. */
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void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
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void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
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{
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{
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    unsigned int i;
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    unsigned int i;
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    init.cnt = bootinfo->cnt;
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    init.cnt = bootinfo->cnt;
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    for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
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    for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
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        init.tasks[i].addr = bootinfo->tasks[i].addr;
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        init.tasks[i].addr = bootinfo->tasks[i].addr;
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        init.tasks[i].size = bootinfo->tasks[i].size;
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        init.tasks[i].size = bootinfo->tasks[i].size;
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        str_ncpy(init.tasks[i].name, bootinfo->tasks[i].name,
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        str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
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            CONFIG_TASK_NAME_BUFLEN);
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            bootinfo->tasks[i].name);
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    }
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    }
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}
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}
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69
 
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/** Performs arm32 specific initialization before mm is initialized. */
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/** Performs arm32 specific initialization before mm is initialized. */
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void arch_pre_mm_init(void)
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void arch_pre_mm_init(void)
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{
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{
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    /* It is not assumed by default */
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    /* It is not assumed by default */
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    interrupts_disable();
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    interrupts_disable();
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}
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}
76
 
76
 
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/** Performs arm32 specific initialization afterr mm is initialized. */
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/** Performs arm32 specific initialization afterr mm is initialized. */
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void arch_post_mm_init(void)
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void arch_post_mm_init(void)
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{
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
   
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#ifdef CONFIG_FB
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#ifdef CONFIG_FB
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    fb_properties_t prop = {
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    fb_properties_t prop = {
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        .addr = GXEMUL_FB_ADDRESS,
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        .addr = GXEMUL_FB_ADDRESS,
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        .offset = 0,
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        .offset = 0,
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        .x = 640,
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        .x = 640,
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        .y = 480,
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        .y = 480,
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        .scan = 1920,
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        .scan = 1920,
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        .visual = VISUAL_BGR_8_8_8,
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        .visual = VISUAL_BGR_8_8_8,
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    };
94
    };
95
    fb_init(&prop);
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    fb_init(&prop);
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#else
96
#else
97
#ifdef CONFIG_ARM_PRN
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#ifdef CONFIG_ARM_PRN
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    dsrlnout_init((ioport8_t *) gxemul_kbd);
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    dsrlnout_init((ioport8_t *) gxemul_kbd);
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#endif /* CONFIG_ARM_PRN */
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#endif /* CONFIG_ARM_PRN */
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#endif /* CONFIG_FB */
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#endif /* CONFIG_FB */
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}
101
}
102
 
102
 
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/** Performs arm32 specific tasks needed after cpu is initialized.
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/** Performs arm32 specific tasks needed after cpu is initialized.
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 *
104
 *
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 * Currently the function is empty.
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 * Currently the function is empty.
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 */
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
     */
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134
    dsrlnin_instance_t *dsrlnin_instance
134
    indev_t *kbrdin = dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ);
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        = dsrlnin_init((dsrlnin_t *) gxemul_kbd, GXEMUL_KBD_IRQ);
135
    if (kbrdin)
136
    if (dsrlnin_instance) {
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        srln_instance_t *srln_instance = srln_init();
136
        srln_init(kbrdin);
138
        if (srln_instance) {
-
 
139
            indev_t *sink = stdin_wire();
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            indev_t *srln = srln_wire(srln_instance, sink);
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141
            dsrlnin_wire(dsrlnin_instance, srln);
-
 
142
        }
-
 
143
    }
137
   
144
   
138
    /*
145
    /*
139
     * This is the necessary evil until the userspace driver is entirely
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     * This is the necessary evil until the userspace driver is entirely
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     * self-sufficient.
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     * self-sufficient.
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     */
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     */
142
    sysinfo_set_item_val("kbd", NULL, true);
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    sysinfo_set_item_val("kbd", NULL, true);
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    sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
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    sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
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    sysinfo_set_item_val("kbd.address.virtual", NULL, (unative_t) gxemul_kbd);
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    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.
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/** 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