Annotation of prex-old/sys/arch/arm/cats/platform.h, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 2007, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: #ifndef _GBA_PLATFORM_H
! 31: #define _GBA_PLATFORM_H
! 32:
! 33: /*
! 34: * Memory location
! 35: */
! 36:
! 37: #define PAGE_OFFSET 0x00000000
! 38:
! 39: #define KERNEL_BASE 0x02000000
! 40: #define KERNEL_MAX 0x02400000
! 41: #define USER_BASE 0x02000000
! 42: #define USER_MAX 0x02040000
! 43:
! 44: #define BOOT_INFO 0x00200000
! 45: #define BOOT_STACK 0x00300000
! 46: #define INT_STACK 0x00307900
! 47: #define SYS_STACK 0x0033ff00
! 48:
! 49: #ifndef __ASSEMBLY__
! 50:
! 51: /*
! 52: * Page mapping
! 53: */
! 54: #define phys_to_virt(p_addr) (void *)((u_long)(p_addr) + PAGE_OFFSET)
! 55: #define virt_to_phys(v_addr) (void *)((u_long)(v_addr) - PAGE_OFFSET)
! 56:
! 57: /*
! 58: * Kernel/User Locations
! 59: */
! 60: #define kern_area(addr) \
! 61: (((u_long)(addr) >= KERNEL_BASE) && ((u_long)(addr) < KERNEL_MAX))
! 62: #define user_area(addr) \
! 63: (((u_long)(addr) >= USER_BASE) && ((u_long)(addr) < USER_MAX))
! 64:
! 65: /*
! 66: * Interrupt
! 67: */
! 68: #define NIRQS 14 /* number of interrupt vectors */
! 69:
! 70: static __inline void
! 71: interrupt_enable(void)
! 72: {
! 73: #ifndef __lint__
! 74: u_long val;
! 75:
! 76: __asm__ __volatile__(
! 77: "mrs %0, cpsr\n\t"
! 78: "bic %0, %0, #0xc0\n\t" /* Enable IRQ & FIQ */
! 79: "msr cpsr_c, %0\n\t"
! 80: :"=&r" (val)
! 81: :
! 82: : "memory");
! 83: #endif
! 84: }
! 85:
! 86: static __inline void
! 87: interrupt_disable(void)
! 88: {
! 89: #ifndef __lint__
! 90: u_long val;
! 91:
! 92: __asm__ __volatile__(
! 93: "mrs %0, cpsr\n\t"
! 94: "orr %0, %0, #0xc0\n\t" /* Disable IRQ & FIQ */
! 95: "msr cpsr_c, %0\n\t"
! 96: :"=&r" (val)
! 97: :
! 98: : "memory");
! 99: #endif
! 100: }
! 101:
! 102: static __inline void
! 103: interrupt_save(int *sts)
! 104: {
! 105: u_long val;
! 106:
! 107: __asm__ __volatile__(
! 108: "mrs %0, cpsr\n\t"
! 109: :"=&r" (val)
! 110: :
! 111: :"memory");
! 112: *sts = (int)val;
! 113: }
! 114:
! 115: static __inline void
! 116: interrupt_restore(int sts)
! 117: {
! 118:
! 119: __asm__ __volatile__(
! 120: "msr cpsr_c, %0\n\t"
! 121: :
! 122: :"r" (sts)
! 123: :"memory");
! 124: }
! 125:
! 126: extern void interrupt_mask(int);
! 127: extern void interrupt_unmask(int, int);
! 128: extern void interrupt_setup(int, int);
! 129: extern void interrupt_init(void);
! 130:
! 131: /* Interrupt mode for interrupt_setup() */
! 132: #define IMODE_EDGE 0 /* edge trigger */
! 133: #define IMODE_LEVEL 1 /* level trigger */
! 134:
! 135: extern void clock_init(void);
! 136:
! 137: extern void diag_init(void);
! 138:
! 139: #ifdef CONFIG_DIAG_VBA
! 140: static __inline void
! 141: diag_print(char *buf)
! 142: {
! 143:
! 144: __asm__ __volatile__(
! 145: "mov r0, %0\n\t"
! 146: "swi 0xff0000\n\t" /* VBA emulator call */
! 147: :
! 148: :"r" (buf)
! 149: :"r0");
! 150: }
! 151:
! 152: #else
! 153: extern void diag_print(char *);
! 154: #endif
! 155:
! 156: static __inline void
! 157: machine_idle(void)
! 158: {
! 159:
! 160: __asm__ __volatile__(
! 161: "swi 0x20000\n\t" /* GBA BIOS call */
! 162: :::"r0", "r1", "r2", "r3");
! 163: }
! 164:
! 165: static __inline void
! 166: machine_reset(void)
! 167: {
! 168:
! 169: __asm__ __volatile__(
! 170: "swi 0\n\t" /* GBA BIOS call */
! 171: :::"r0", "r1", "r2", "r3");
! 172: }
! 173:
! 174: extern void machine_init(void);
! 175:
! 176: #endif /* !__ASSEMBLY__ */
! 177: #endif /* !_GBA_PLATFORM_H */
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to platform.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / prex-old / sys / arch / arm / cats