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//==========================================================================
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//
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// can_hdi.c
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//
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// CAN hardware description information test
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//
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//==========================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): Uwe Kindler
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// Contributors: Uwe Kindler
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// Date: 2007-03-22
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// Description: CAN hardware desciption information test
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//####DESCRIPTIONEND####
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//===========================================================================
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// INCLUDES
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//===========================================================================
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#include <pkgconf/system.h>
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#include <cyg/infra/testcase.h> // test macros
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#include <cyg/infra/cyg_ass.h> // assertion macros
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#include <cyg/infra/diag.h>
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// Package requirements
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#if defined(CYGPKG_IO_CAN) && defined(CYGPKG_KERNEL)
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#include <pkgconf/kernel.h>
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#include <cyg/io/io.h>
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#include <cyg/io/canio.h>
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// Package option requirements
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#if defined(CYGFUN_KERNEL_API_C)
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#include <cyg/hal/hal_arch.h> // CYGNUM_HAL_STACK_SIZE_TYPICAL
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#include <cyg/kernel/kapi.h>
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//===========================================================================
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// DATA TYPES
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//===========================================================================
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typedef struct st_thread_data
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{
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cyg_thread obj;
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long stack[CYGNUM_HAL_STACK_SIZE_TYPICAL];
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cyg_handle_t hdl;
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} thread_data_t;
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//===========================================================================
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// LOCAL DATA
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//===========================================================================
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cyg_thread_entry_t can0_thread;
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thread_data_t can0_thread_data;
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cyg_io_handle_t hCAN0;
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//===========================================================================
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// LOCAL FUNCTIONS
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//===========================================================================
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#include "can_test_aux.inl" // include CAN test auxiliary functions
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//===========================================================================
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// Main thread
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//===========================================================================
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void can0_thread(cyg_addrword_t data)
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{
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cyg_uint32 len;
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cyg_can_hdi hdi;
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cyg_can_msgbuf_info msgbox_info;
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//
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// Query information about hardware of CAN controller
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//
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len = sizeof(hdi);
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if (ENOERR != cyg_io_get_config(hCAN0, CYG_IO_GET_CONFIG_CAN_HDI ,&hdi, &len))
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{
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CYG_TEST_FAIL_FINISH("Error reading config of /dev/can0");
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}
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//
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// Check type of CAN controller - type of supported CAN frames
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//
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diag_printf("\n\nSupported message formats:\n");
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if (hdi.support_flags & CYGNUM_CAN_HDI_FRAMETYPE_STD)
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{
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diag_printf(" Standard CAN (2.0A): yes\n");
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diag_printf(" Extended CAN (2.0B): no\n");
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}
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else if (hdi.support_flags & CYGNUM_CAN_HDI_FRAMETYPE_EXT_PASSIVE)
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{
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diag_printf(" Standard CAN (2.0A): yes\n");
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diag_printf(" Extended CAN (2.0B): passive\n");
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}
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else if (hdi.support_flags & CYGNUM_CAN_HDI_FRAMETYPE_EXT_ACTIVE)
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{
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diag_printf(" Standard CAN (2.0A): yes\n");
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diag_printf(" Extended CAN (2.0B): yes\n");
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}
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//
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// Check if this is a FullCAN controller
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//
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diag_printf("\nController type: ");
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if (hdi.support_flags & CYGNUM_CAN_HDI_FULLCAN)
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{
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diag_printf("FullCAN\n");
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//
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// FullCAN means the controller supports a number of message buffers.
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// Now query number of available and free message buffers
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//
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len = sizeof(msgbox_info);
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if (ENOERR != cyg_io_get_config(hCAN0, CYG_IO_GET_CONFIG_CAN_MSGBUF_INFO ,&msgbox_info, &len))
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{
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CYG_TEST_FAIL_FINISH("Error reading config of /dev/can0");
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}
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diag_printf(" Message buffers: %d\n", msgbox_info.count);
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diag_printf(" Message buffers free: %d\n", msgbox_info.free);
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}
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else
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{
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diag_printf("BasicCAN\n");
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}
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//
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// Check if automatic baudrate detection is supported
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//
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if (hdi.support_flags & CYGNUM_CAN_HDI_AUTBAUD)
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{
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diag_printf("\nAutomatic baudrate detection: supported\n");
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}
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//
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// Check if driver supports timestamps
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//
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if (hdi.support_flags & CYGNUM_CAN_HDI_TIMESTAMP)
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{
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diag_printf("Timestamps: supported\n");
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}
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diag_printf("\n\n");
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CYG_TEST_PASS_FINISH("can_hdi test OK");
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}
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void
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cyg_start(void)
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{
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CYG_TEST_INIT();
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//
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// open CAN device driver
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//
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if (ENOERR != cyg_io_lookup("/dev/can0", &hCAN0))
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{
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CYG_TEST_FAIL_FINISH("Error opening /dev/can0");
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}
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//
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// create the two threads which access the CAN device driver
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// a reader thread with a higher priority and a writer thread
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// with a lower priority
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//
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cyg_thread_create(4, can0_thread,
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(cyg_addrword_t) 0,
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"can0_thread",
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(void *) can0_thread_data.stack,
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1024 * sizeof(long),
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&can0_thread_data.hdl,
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&can0_thread_data.obj);
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cyg_thread_resume(can0_thread_data.hdl);
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cyg_scheduler_start();
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}
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#else // CYGFUN_KERNEL_API_C
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#define N_A_MSG "Needs kernel C API"
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#endif
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#else // CYGPKG_IO_CAN && CYGPKG_KERNEL
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#define N_A_MSG "Needs IO/CAN and Kernel"
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#endif
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#ifdef N_A_MSG
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void
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cyg_start( void )
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{
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CYG_TEST_INIT();
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CYG_TEST_NA( N_A_MSG);
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}
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#endif // N_A_MSG
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//---------------------------------------------------------------------------
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// EOF can_hdi.c
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