| /tags/0.1.1/kernel/arch/ia32/src/drivers/vesa.c |
|---|
| 0,0 → 1,87 |
| /* |
| * Copyright (C) 2006 Jakub Vana |
| * 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. |
| */ |
| #ifdef CONFIG_FB |
| #include <genarch/fb/fb.h> |
| #include <arch/vesa.h> |
| #include <putchar.h> |
| #include <mm/page.h> |
| #include <mm/frame.h> |
| #include <mm/as.h> |
| #include <arch/mm/page.h> |
| #include <synch/spinlock.h> |
| #include <arch/asm.h> |
| #include <arch/types.h> |
| #include <typedefs.h> |
| #include <memstr.h> |
| #include <bitops.h> |
| #include <sysinfo/sysinfo.h> |
| __u32 vesa_ph_addr; |
| __u16 vesa_width; |
| __u16 vesa_height; |
| __u16 vesa_bpp; |
| __u16 vesa_scanline; |
| int vesa_present(void) |
| { |
| if (vesa_width != 0xffff) |
| return true; |
| if (vesa_height != 0xffff) |
| return true; |
| return false; |
| } |
| static count_t vesa_frame_order(void) |
| { |
| __u32 x = vesa_scanline*vesa_height; |
| if (x <= FRAME_SIZE) |
| return 0; |
| return (fnzb32(x - 1) + 1) - FRAME_WIDTH; |
| } |
| void vesa_init(void) |
| { |
| int a; |
| __address vram_lin_addr; |
| vram_lin_addr = PA2KA(PFN2ADDR(frame_alloc(vesa_frame_order(), FRAME_KA))); |
| /* Map videoram */ |
| for (a = 0; a < ((vesa_scanline * vesa_height + PAGE_SIZE - 1) >> PAGE_WIDTH); a++) |
| page_mapping_insert(AS_KERNEL, vram_lin_addr + a*PAGE_SIZE, vesa_ph_addr + a*FRAME_SIZE, |
| PAGE_NOT_CACHEABLE); |
| fb_init(vram_lin_addr, vesa_width, vesa_height, vesa_bpp, vesa_scanline); |
| fb_register(); |
| sysinfo_set_item_val("fb.address.physical", NULL, vesa_ph_addr); |
| } |
| #endif |
| /tags/0.1.1/kernel/arch/ia32/src/drivers/ega.c |
|---|
| 0,0 → 1,133 |
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * 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. |
| */ |
| #include <arch/ega.h> |
| #include <putchar.h> |
| #include <mm/page.h> |
| #include <mm/as.h> |
| #include <arch/mm/page.h> |
| #include <synch/spinlock.h> |
| #include <arch/types.h> |
| #include <arch/asm.h> |
| #include <memstr.h> |
| #include <console/chardev.h> |
| #include <console/console.h> |
| /* |
| * The EGA driver. |
| * Simple and short. Function for displaying characters and "scrolling". |
| */ |
| SPINLOCK_INITIALIZE(egalock); |
| static __u32 ega_cursor; |
| static void ega_putchar(chardev_t *d, const char ch); |
| chardev_t ega_console; |
| static chardev_operations_t ega_ops = { |
| .write = ega_putchar |
| }; |
| void ega_move_cursor(void); |
| void ega_init(void) |
| { |
| __u8 hi, lo; |
| page_mapping_insert(AS_KERNEL, PA2KA(VIDEORAM), VIDEORAM, PAGE_NOT_CACHEABLE); |
| outb(0x3d4,0xe); |
| hi = inb(0x3d5); |
| outb(0x3d4,0xf); |
| lo = inb(0x3d5); |
| ega_cursor = (hi<<8)|lo; |
| chardev_initialize("ega_out", &ega_console, &ega_ops); |
| stdout = &ega_console; |
| #ifndef CONFIG_FB |
| putchar('\n'); |
| #endif |
| } |
| static void ega_display_char(char ch) |
| { |
| __u8 *vram = (__u8 *) PA2KA(VIDEORAM); |
| vram[ega_cursor*2] = ch; |
| } |
| /* |
| * This function takes care of scrolling. |
| */ |
| static void ega_check_cursor(void) |
| { |
| if (ega_cursor < SCREEN) |
| return; |
| memcpy((void *)PA2KA(VIDEORAM), (void *)(PA2KA(VIDEORAM) + ROW*2), (SCREEN - ROW)*2); |
| memsetw(PA2KA(VIDEORAM) + (SCREEN - ROW)*2, ROW, 0x0720); |
| ega_cursor = ega_cursor - ROW; |
| } |
| void ega_putchar(chardev_t *d, const char ch) |
| { |
| ipl_t ipl; |
| ipl = interrupts_disable(); |
| spinlock_lock(&egalock); |
| switch (ch) { |
| case '\n': |
| ega_cursor = (ega_cursor + ROW) - ega_cursor % ROW; |
| break; |
| case '\t': |
| ega_cursor = (ega_cursor + 8) - ega_cursor % 8; |
| break; |
| case '\b': |
| if (ega_cursor % ROW) |
| ega_cursor--; |
| break; |
| default: |
| ega_display_char(ch); |
| ega_cursor++; |
| break; |
| } |
| ega_check_cursor(); |
| ega_move_cursor(); |
| spinlock_unlock(&egalock); |
| interrupts_restore(ipl); |
| } |
| void ega_move_cursor(void) |
| { |
| outb(0x3d4,0xe); |
| outb(0x3d5,(ega_cursor>>8)&0xff); |
| outb(0x3d4,0xf); |
| outb(0x3d5,ega_cursor&0xff); |
| } |
| /tags/0.1.1/kernel/arch/ia32/src/drivers/i8259.c |
|---|
| 0,0 → 1,124 |
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * 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. |
| */ |
| #include <arch/i8259.h> |
| #include <cpu.h> |
| #include <arch/types.h> |
| #include <arch/asm.h> |
| #include <arch.h> |
| #include <print.h> |
| #include <interrupt.h> |
| /* |
| * This is the PIC driver. |
| * Programmable Interrupt Controller for UP systems. |
| */ |
| static void pic_spurious(int n, istate_t *istate); |
| void i8259_init(void) |
| { |
| /* ICW1: this is ICW1, ICW4 to follow */ |
| outb(PIC_PIC0PORT1, PIC_ICW1 | PIC_NEEDICW4); |
| /* ICW2: IRQ 0 maps to INT IRQBASE */ |
| outb(PIC_PIC0PORT2, IVT_IRQBASE); |
| /* ICW3: pic1 using IRQ IRQ_PIC1 */ |
| outb(PIC_PIC0PORT2, 1 << IRQ_PIC1); |
| /* ICW4: i8086 mode */ |
| outb(PIC_PIC0PORT2, 1); |
| /* ICW1: ICW1, ICW4 to follow */ |
| outb(PIC_PIC1PORT1, PIC_ICW1 | PIC_NEEDICW4); |
| /* ICW2: IRQ 8 maps to INT (IVT_IRQBASE + 8) */ |
| outb(PIC_PIC1PORT2, IVT_IRQBASE + 8); |
| /* ICW3: pic1 is known as IRQ_PIC1 */ |
| outb(PIC_PIC1PORT2, IRQ_PIC1); |
| /* ICW4: i8086 mode */ |
| outb(PIC_PIC1PORT2, 1); |
| /* |
| * Register interrupt handler for the PIC spurious interrupt. |
| */ |
| exc_register(VECTOR_PIC_SPUR, "pic_spurious", (iroutine) pic_spurious); |
| /* |
| * Set the enable/disable IRQs handlers. |
| * Set the End-of-Interrupt handler. |
| */ |
| enable_irqs_function = pic_enable_irqs; |
| disable_irqs_function = pic_disable_irqs; |
| eoi_function = pic_eoi; |
| pic_disable_irqs(0xffff); /* disable all irq's */ |
| pic_enable_irqs(1<<IRQ_PIC1); /* but enable pic1 */ |
| } |
| void pic_enable_irqs(__u16 irqmask) |
| { |
| __u8 x; |
| if (irqmask & 0xff) { |
| x = inb(PIC_PIC0PORT2); |
| outb(PIC_PIC0PORT2, x & (~(irqmask & 0xff))); |
| } |
| if (irqmask >> 8) { |
| x = inb(PIC_PIC1PORT2); |
| outb(PIC_PIC1PORT2, x & (~(irqmask >> 8))); |
| } |
| } |
| void pic_disable_irqs(__u16 irqmask) |
| { |
| __u8 x; |
| if (irqmask & 0xff) { |
| x = inb(PIC_PIC0PORT2); |
| outb(PIC_PIC0PORT2, x | (irqmask & 0xff)); |
| } |
| if (irqmask >> 8) { |
| x = inb(PIC_PIC1PORT2); |
| outb(PIC_PIC1PORT2, x | (irqmask >> 8)); |
| } |
| } |
| void pic_eoi(void) |
| { |
| outb(0x20,0x20); |
| outb(0xa0,0x20); |
| } |
| void pic_spurious(int n, istate_t *istate) |
| { |
| printf("cpu%d: PIC spurious interrupt\n", CPU->id); |
| } |
| /tags/0.1.1/kernel/arch/ia32/src/drivers/i8254.c |
|---|
| 0,0 → 1,132 |
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * 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. |
| */ |
| #include <arch/types.h> |
| #include <time/clock.h> |
| #include <time/delay.h> |
| #include <arch/interrupt.h> |
| #include <arch/i8259.h> |
| #include <arch/i8254.h> |
| #include <cpu.h> |
| #include <config.h> |
| #include <arch/pm.h> |
| #include <arch/asm.h> |
| #include <arch/cpuid.h> |
| #include <arch.h> |
| #include <time/delay.h> |
| #include <interrupt.h> |
| /* |
| * i8254 chip driver. |
| * Low level time functions. |
| */ |
| #define CLK_PORT1 0x40 |
| #define CLK_PORT4 0x43 |
| #define CLK_CONST 1193180 |
| #define MAGIC_NUMBER 1194 |
| static void i8254_interrupt(int n, istate_t *istate); |
| void i8254_init(void) |
| { |
| i8254_normal_operation(); |
| } |
| void i8254_normal_operation(void) |
| { |
| outb(CLK_PORT4, 0x36); |
| pic_disable_irqs(1<<IRQ_CLK); |
| outb(CLK_PORT1, (CLK_CONST/HZ) & 0xf); |
| outb(CLK_PORT1, (CLK_CONST/HZ) >> 8); |
| pic_enable_irqs(1<<IRQ_CLK); |
| exc_register(VECTOR_CLK, "i8254_clock", (iroutine) i8254_interrupt); |
| } |
| #define LOOPS 150000 |
| #define SHIFT 11 |
| void i8254_calibrate_delay_loop(void) |
| { |
| __u64 clk1, clk2; |
| __u32 t1, t2, o1, o2; |
| __u8 not_ok; |
| /* |
| * One-shot timer. Count-down from 0xffff at 1193180Hz |
| * MAGIC_NUMBER is the magic value for 1ms. |
| */ |
| outb(CLK_PORT4, 0x30); |
| outb(CLK_PORT1, 0xff); |
| outb(CLK_PORT1, 0xff); |
| do { |
| /* will read both status and count */ |
| outb(CLK_PORT4, 0xc2); |
| not_ok = (inb(CLK_PORT1)>>6)&1; |
| t1 = inb(CLK_PORT1); |
| t1 |= inb(CLK_PORT1) << 8; |
| } while (not_ok); |
| asm_delay_loop(LOOPS); |
| outb(CLK_PORT4, 0xd2); |
| t2 = inb(CLK_PORT1); |
| t2 |= inb(CLK_PORT1) << 8; |
| /* |
| * We want to determine the overhead of the calibrating mechanism. |
| */ |
| outb(CLK_PORT4, 0xd2); |
| o1 = inb(CLK_PORT1); |
| o1 |= inb(CLK_PORT1) << 8; |
| asm_fake_loop(LOOPS); |
| outb(CLK_PORT4, 0xd2); |
| o2 = inb(CLK_PORT1); |
| o2 |= inb(CLK_PORT1) << 8; |
| CPU->delay_loop_const = ((MAGIC_NUMBER*LOOPS)/1000) / ((t1-t2)-(o1-o2)) + (((MAGIC_NUMBER*LOOPS)/1000) % ((t1-t2)-(o1-o2)) ? 1 : 0); |
| clk1 = rdtsc(); |
| delay(1<<SHIFT); |
| clk2 = rdtsc(); |
| CPU->frequency_mhz = (clk2-clk1)>>SHIFT; |
| return; |
| } |
| void i8254_interrupt(int n, istate_t *istate) |
| { |
| trap_virtual_eoi(); |
| clock(); |
| } |