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File: [local] / sys / arch / m68k / include / db_machdep.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:06:29 2008 UTC (16 years, 3 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
/* $OpenBSD: db_machdep.h,v 1.10 2005/11/13 17:50:44 fgsch Exp $ */ /* $NetBSD: db_machdep.h,v 1.20 1997/06/26 01:26:58 thorpej Exp $ */ /* * Mach Operating System * Copyright (c) 1992 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* * Machine-dependent defines for new kernel debugger. */ #ifndef _M68K_DB_MACHDEP_H_ #define _M68K_DB_MACHDEP_H_ #include <sys/types.h> /* * XXX - Would rather not pull in vm headers, but need boolean_t, * at least until boolean_t moves to <sys/types.h> or someplace. */ #include <uvm/uvm_param.h> #include <machine/frame.h> #include <machine/psl.h> #include <machine/trap.h> typedef vaddr_t db_addr_t; /* address - unsigned */ typedef long db_expr_t; /* expression - signed */ typedef struct trapframe db_regs_t; extern db_regs_t ddb_regs; /* register state */ #define DDB_REGS (&ddb_regs) #define PC_REGS(regs) ((db_addr_t)(regs)->tf_pc) #define SET_PC_REGS(regs, value) (regs)->tf_pc = (unsigned int)(value) #define BKPT_INST 0x4e4f /* breakpoint instruction */ #define BKPT_SIZE (2) /* size of breakpoint inst */ #define BKPT_SET(inst) (BKPT_INST) #define FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_pc -= BKPT_SIZE) #define db_clear_single_step(regs) ((regs)->tf_sr &= ~PSL_T) #define db_set_single_step(regs) ((regs)->tf_sr |= PSL_T) #define IS_BREAKPOINT_TRAP(type, code) ((type) == T_BREAKPOINT) #ifdef T_WATCHPOINT #define IS_WATCHPOINT_TRAP(type, code) ((type) == T_WATCHPOINT) #else #define IS_WATCHPOINT_TRAP(type, code) 0 #endif #define M_RTS 0xffff0000 #define I_RTS 0x4e750000 #define M_JSR 0xffc00000 #define I_JSR 0x4e800000 #define M_BSR 0xff000000 #define I_BSR 0x61000000 #define M_RTE 0xffff0000 #define I_RTE 0x4e730000 #define inst_trap_return(ins) (((ins)&M_RTE) == I_RTE) #define inst_return(ins) (((ins)&M_RTS) == I_RTS) #define inst_call(ins) (((ins)&M_JSR) == I_JSR || \ ((ins)&M_BSR) == I_BSR) #define inst_load(ins) 0 #define inst_store(ins) 0 /* * Things needed by kgdb: */ typedef long kgdb_reg_t; #define KGDB_NUMREGS (16+2) #define KGDB_BUFLEN 512 #ifdef _KERNEL #define KGDB_ENTER __asm __volatile("trap #15") void Debugger(void); /* XXX */ void kdb_kintr(db_regs_t *); int kdb_trap(int, db_regs_t *); #endif /* _KERNEL */ /* * We use a.out symbols in DDB. */ #define DB_AOUT_SYMBOLS #endif /* _M68K_DB_MACHDEP_H_ */