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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [h8300/] [sim/] [v2_0/] [src/] [plf_misc.c] - Rev 307
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//========================================================================== // // plf_misc.c // // HAL platform miscellaneous functions // //========================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): nickg // Contributors: nickg, jlarmour // Date: 1999-09-09 // Purpose: HAL miscellaneous functions // Description: This file contains miscellaneous functions provided by the // HAL. // //####DESCRIPTIONEND#### // //========================================================================*/ #include <pkgconf/hal.h> #include <cyg/infra/cyg_type.h> // Base types #include <cyg/hal/hal_arch.h> // architectural definitions #include <cyg/hal/hal_io.h> #include <cyg/hal/hal_if.h> #include <cyg/hal/plf_intr.h> #include <cyg/hal/var_arch.h> /*------------------------------------------------------------------------*/ void hal_platform_init(void) { hal_if_init(); } void h8300h_reset(void) { __asm__ ("jmp @@0\n\t"); } /*------------------------------------------------------------------------*/ /* Control C ISR support */ #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) struct Hal_SavedRegisters *hal_saved_interrupt_state; #endif /*------------------------------------------------------------------------*/ /* clock support */ void hal_clock_initialize(cyg_uint32 period) { CYG_BYTE prescale; #if CYGNUM_HAL_H8300_RTC_PRESCALE == 8 prescale = 0x01; #else #if CYGNUM_HAL_H8300_RTC_PRESCALE == 64 prescale = 0x02; #else #if CYGNUM_HAL_H8300_RTC_PRESCALE == 8192 prescale = 0x03; #else #error illigal RTC prescale setting #endif #endif #endif HAL_WRITE_UINT8(CYGARC_TCORA3,period); HAL_WRITE_UINT8(CYGARC_8TCNT3,0x00); HAL_WRITE_UINT8(CYGARC_8TCR3,0x48 | prescale); HAL_WRITE_UINT8(CYGARC_8TCSR3,0x00); } void hal_clock_reset(cyg_uint32 vector, cyg_uint32 period) { HAL_WRITE_UINT8(CYGARC_8TCR3,0x00); HAL_WRITE_UINT8(CYGARC_8TCSR3,0x00); hal_clock_initialize(period); } void hal_clock_read(cyg_uint32 *pvalue) { CYG_BYTE val; HAL_READ_UINT8(CYGARC_8TCNT3,val); *pvalue = val; } /*------------------------------------------------------------------------*/ /* End of plf_misc.c */
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