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[/] [or1k/] [trunk/] [ecos-2.0/] [packages/] [hal/] [calmrisc32/] [ceb/] [v2_0/] [src/] [hal_diag.c] - Rev 1773
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/*============================================================================= // // hal_diag.c // // HAL diagnostic output code // //============================================================================= //####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, dmoseley // Date: 1998-03-02 // Purpose: HAL diagnostic output // Description: Implementations of HAL diagnostic output support. // //####DESCRIPTIONEND#### // //===========================================================================*/ #include <pkgconf/hal.h> #include <cyg/infra/cyg_type.h> // base types #include <cyg/infra/cyg_trac.h> // tracing macros #include <cyg/infra/cyg_ass.h> // assertion macros #include <cyg/hal/hal_arch.h> #include <cyg/hal/hal_diag.h> #include <cyg/hal/hal_intr.h> #include <cyg/hal/hal_io.h> //----------------------------------------------------------------------------- // Select which diag channels to use //#define CYG_KERNEL_DIAG_LCD #define CYG_KERNEL_DIAG_SERIAL /*---------------------------------------------------------------------------*/ void hal_diag_led(int x) { } externC void diag_write_string (const char*); #ifdef CYG_KERNEL_DIAG_SERIAL extern void cyg_hal_plf_comms_init(void); extern void cyg_hal_plf_serial_putc(void*, cyg_uint8); extern cyg_uint8 cyg_hal_plf_serial_getc(void*); #endif void hal_diag_init(void) { #if defined(CYGSEM_HAL_ROM_MONITOR) && !defined(CYG_KERNEL_DIAG_SERIAL) // It's handy to have the LCD initialized at reset when using it // for debugging output. // The serial port likely doesn't work yet. Let's wait. diag_write_string ("eCos ROM " __TIME__ "\n"); diag_write_string (__DATE__ "\n"); #endif #if defined(CYG_KERNEL_DIAG_SERIAL) cyg_hal_plf_comms_init(); #endif } #if defined(CYG_KERNEL_DIAG_LCD) static void hal_diag_clear_lcd(void) { volatile int i = 0x20000; while (--i) ; HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS0, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS1, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS2, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS3, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS4, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS5, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS6, ' '); HAL_WRITE_UINT32(HAL_DISPLAY_ASCIIPOS7, ' '); } #endif /* defined(CYG_KERNEL_DIAG_LCD) */ void hal_diag_write_char(char c) { #if defined(CYG_KERNEL_DIAG_LCD) static volatile CYG_WORD* reg = HAL_DISPLAY_ASCIIPOS0; #endif unsigned long __state; HAL_DISABLE_INTERRUPTS(__state); if(c == '\n') { #if defined(CYG_KERNEL_DIAG_LCD) reg = HAL_DISPLAY_ASCIIPOS0; hal_diag_clear_lcd(); #endif #if defined (CYG_KERNEL_DIAG_SERIAL) cyg_hal_plf_serial_putc(NULL, '\r'); cyg_hal_plf_serial_putc(NULL, '\n'); #endif } else if (c == '\r') { // Ignore '\r' } else { #if defined(CYG_KERNEL_DIAG_LCD) if (reg == HAL_DISPLAY_ASCIIPOS0) hal_diag_clear_lcd(); HAL_WRITE_UINT32(reg, c); // Advance to next LED position. if (reg == HAL_DISPLAY_ASCIIPOS0) reg = HAL_DISPLAY_ASCIIPOS1; else if (reg == HAL_DISPLAY_ASCIIPOS1) reg = HAL_DISPLAY_ASCIIPOS2; else if (reg == HAL_DISPLAY_ASCIIPOS2) reg = HAL_DISPLAY_ASCIIPOS3; else if (reg == HAL_DISPLAY_ASCIIPOS3) reg = HAL_DISPLAY_ASCIIPOS4; else if (reg == HAL_DISPLAY_ASCIIPOS4) reg = HAL_DISPLAY_ASCIIPOS5; else if (reg == HAL_DISPLAY_ASCIIPOS5) reg = HAL_DISPLAY_ASCIIPOS6; else if (reg == HAL_DISPLAY_ASCIIPOS6) reg = HAL_DISPLAY_ASCIIPOS7; else // reg == HAL_DISPLAY_ASCIIPOS7 or UNKNOWN reg = HAL_DISPLAY_ASCIIPOS0; #endif #if defined(CYG_KERNEL_DIAG_SERIAL) cyg_hal_plf_serial_putc(NULL, c); #endif } HAL_RESTORE_INTERRUPTS(__state); } void hal_diag_read_char(char* c) { *c = cyg_hal_plf_serial_getc(NULL); } /*---------------------------------------------------------------------------*/ /* End of hal_diag.c */
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