/* * Copyright (c) 2001-2004 Jakub Jermar * Copyright (c) 2009 Jiri Svoboda * Copyright (c) 2009 Martin Decky * 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 ia32 * @{ */ /** @file */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_SMP #include #endif static void ia32_pre_mm_init(void); static void ia32_post_mm_init(void); static void ia32_post_cpu_init(void); static void ia32_pre_smp_init(void); static void ia32_post_smp_init(void); arch_ops_t ia32_ops = { .pre_mm_init = ia32_pre_mm_init, .post_mm_init = ia32_post_mm_init, .post_cpu_init = ia32_post_cpu_init, .pre_smp_init = ia32_pre_smp_init, .post_smp_init = ia32_post_smp_init, }; arch_ops_t *arch_ops = &ia32_ops; /** Perform ia32-specific initialization before main_bsp() is called. * * @param signature Multiboot signature. * @param info Multiboot information structure. * */ void ia32_pre_main(uint32_t signature, void *info) { /* Parse multiboot information obtained from the bootloader. */ multiboot_info_parse(signature, (multiboot_info_t *) info); multiboot2_info_parse(signature, (multiboot2_info_t *) info); #ifdef CONFIG_SMP /* Copy AP bootstrap routines below 1 MB. */ memcpy((void *) AP_BOOT_OFFSET, (void *) BOOT_OFFSET, (size_t) &_hardcoded_unmapped_size); #endif } void ia32_pre_mm_init(void) { pm_init(); if (config.cpu_active == 1) { interrupt_init(); bios_init(); /* PIC */ i8259_init(); } } void ia32_post_mm_init(void) { vreg_init(); if (config.cpu_active == 1) { /* Initialize IRQ routing */ irq_init(IRQ_COUNT, IRQ_COUNT); /* hard clock */ i8254_init(); #if (defined(CONFIG_FB) || defined(CONFIG_EGA)) bool bfb = false; #endif #ifdef CONFIG_FB bfb = bfb_init(); #endif #ifdef CONFIG_EGA if (!bfb) { outdev_t *egadev = ega_init(EGA_BASE, EGA_VIDEORAM); if (egadev) stdout_wire(egadev); } #endif /* Merge all memory zones to 1 big zone */ zone_merge_all(); } } void ia32_post_cpu_init(void) { #ifdef CONFIG_SMP if (config.cpu_active > 1) { l_apic_init(); l_apic_debug(); } #endif } void ia32_pre_smp_init(void) { if (config.cpu_active == 1) { #ifdef CONFIG_SMP acpi_init(); #endif /* CONFIG_SMP */ } } void ia32_post_smp_init(void) { /* Currently the only supported platform for ia32 is 'pc'. */ static const char *platform = "pc"; sysinfo_set_item_data("platform", NULL, (void *) platform, str_size(platform)); #ifdef CONFIG_PC_KBD /* * Initialize the i8042 controller. Then initialize the keyboard * module and connect it to i8042. Enable keyboard interrupts. */ i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD); if (i8042_instance) { kbrd_instance_t *kbrd_instance = kbrd_init(); if (kbrd_instance) { indev_t *sink = stdin_wire(); indev_t *kbrd = kbrd_wire(kbrd_instance, sink); i8042_wire(i8042_instance, kbrd); trap_virtual_enable_irqs(1 << IRQ_KBD); trap_virtual_enable_irqs(1 << IRQ_MOUSE); } } #endif #if (defined(CONFIG_NS16550) || defined(CONFIG_NS16550_OUT)) /* * Initialize the ns16550 controller. */ #ifdef CONFIG_NS16550_OUT outdev_t *ns16550_out; outdev_t **ns16550_out_ptr = &ns16550_out; #else outdev_t **ns16550_out_ptr = NULL; #endif ns16550_instance_t *ns16550_instance = ns16550_init((ns16550_t *) NS16550_BASE, IRQ_NS16550, NULL, NULL, ns16550_out_ptr); if (ns16550_instance) { #ifdef CONFIG_NS16550 srln_instance_t *srln_instance = srln_init(); if (srln_instance) { indev_t *sink = stdin_wire(); indev_t *srln = srln_wire(srln_instance, sink); ns16550_wire(ns16550_instance, srln); trap_virtual_enable_irqs(1 << IRQ_NS16550); } #endif #ifdef CONFIG_NS16550_OUT if (ns16550_out) { stdout_wire(ns16550_out); } #endif } #endif if (irqs_info != NULL) sysinfo_set_item_val(irqs_info, NULL, true); } void calibrate_delay_loop(void) { i8254_calibrate_delay_loop(); if (config.cpu_active == 1) { /* * This has to be done only on UP. * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked. */ i8254_normal_operation(); } } /** 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; } void arch_reboot(void) { #ifdef CONFIG_PC_KBD i8042_cpu_reset((i8042_t *) I8042_BASE); #endif } void irq_initialize_arch(irq_t *irq) { (void) irq; } /** @} */