--- /dev/null
+//==========================================================================
+//
+// can_extended_cfg.c
+//
+// Test of extended CAN configuration keys for LPC2xxx CAN driver
+//
+//==========================================================================
+//####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): Uwe Kindler
+// Contributors: Uwe Kindler
+// Date: 2006-06-20
+// Description: LPC2xxx CAN extended configuration test
+//####DESCRIPTIONEND####
+
+
+//===========================================================================
+// INCLUDES
+//===========================================================================
+#include <pkgconf/system.h>
+
+#include <cyg/infra/testcase.h> // test macros
+#include <cyg/infra/cyg_ass.h> // assertion macros
+#include <cyg/infra/diag.h>
+
+// Package requirements
+#if defined(CYGPKG_IO_CAN) && defined(CYGPKG_KERNEL)
+
+#include <pkgconf/kernel.h>
+#include <cyg/io/io.h>
+#include <cyg/io/canio.h>
+
+
+// Package option requirements
+#if defined(CYGFUN_KERNEL_API_C)
+
+#include <cyg/hal/hal_arch.h> // CYGNUM_HAL_STACK_SIZE_TYPICAL
+#include <cyg/kernel/kapi.h>
+
+// Package option requirements
+#if defined(CYGOPT_IO_CAN_RUNTIME_MBOX_CFG)
+#include "can_test_aux.inl"
+
+#if defined(CYGOPT_DEVS_CAN_LPC2XXX_EXTENDED_CFG_KEYS)
+#include <cyg/io/can_lpc2xxx.h>
+
+//===========================================================================
+// DATA TYPES
+//===========================================================================
+typedef struct st_thread_data
+{
+ cyg_thread obj;
+ long stack[CYGNUM_HAL_STACK_SIZE_TYPICAL];
+ cyg_handle_t hdl;
+} thread_data_t;
+
+
+//===========================================================================
+// LOCAL DATA
+//===========================================================================
+cyg_thread_entry_t can0_thread;
+thread_data_t can0_thread_data;
+cyg_io_handle_t hCAN0;
+
+
+//===========================================================================
+// READER THREAD
+//===========================================================================
+void can0_thread(cyg_addrword_t data)
+{
+ cyg_uint32 len;
+ cyg_can_event rx_event;
+ cyg_can_filtergroup_cfg acc_filt_grp;
+ cyg_can_msgbuf_cfg msgbox_cfg;
+
+ //
+ // First we reset message buffer configuration - this is mandatory bevore starting
+ // message buffer runtime configuration. This call clears/frees all message buffers
+ // The CAN controller cannot receive any further CAN message after this call
+ //
+ msgbox_cfg.cfg_id = CYGNUM_CAN_MSGBUF_RESET_ALL;
+ len = sizeof(msgbox_cfg);
+ if (ENOERR != cyg_io_set_config(hCAN0, CYG_IO_SET_CONFIG_CAN_MSGBUF ,&msgbox_cfg, &len))
+ {
+ CYG_TEST_FAIL_FINISH("Error resetting message buffer configuration of /dev/can0");
+ }
+
+ //
+ // Now we setup two different acceptance filter groups. Acceptance filter
+ // groups are not part of the CAN I/O layer and are a LPC2xxx specific
+ // feature. You should not use appcetance filter groups if you would like
+ // to code portable eCos CAN applications
+ //
+#ifdef CYGOPT_IO_CAN_STD_CAN_ID
+ acc_filt_grp.ext = CYGNUM_CAN_ID_STD;
+ acc_filt_grp.lower_id_bound = 0x100;
+ acc_filt_grp.upper_id_bound = 0x110;
+ len = sizeof(acc_filt_grp);
+
+ if (ENOERR != cyg_io_set_config(hCAN0, CYG_IO_SET_CONFIG_LPC2XXX_ACCFILT_GROUP ,&acc_filt_grp, &len))
+ {
+ CYG_TEST_FAIL_FINISH("Error adding filter group to /dev/can0");
+ }
+#endif // CYGOPT_IO_CAN_STD_CAN_ID
+
+#ifdef CYGOPT_IO_CAN_EXT_CAN_ID
+ acc_filt_grp.ext = CYGNUM_CAN_ID_EXT;
+ acc_filt_grp.lower_id_bound = 0x2000;
+ acc_filt_grp.upper_id_bound = 0x2200;
+ len = sizeof(acc_filt_grp);
+
+ if (ENOERR != cyg_io_set_config(hCAN0, CYG_IO_SET_CONFIG_LPC2XXX_ACCFILT_GROUP ,&acc_filt_grp, &len))
+ {
+ CYG_TEST_FAIL_FINISH("Error adding filter group to /dev/can0");
+ }
+#endif // CYGOPT_IO_CAN_STD_CAN_ID
+
+ diag_printf("\n\nNow try to send CAN messages. The device should only\n"
+ "receive standard messages identifiers in the range of 0x100\n"
+ "to 0x110 and/or extended identifiers in the range 0x2000 to\n"
+ "0x2200. As soon as a standard message with ID 0x110 or an\n"
+ "extended message with ID 0x2200 arrives, the test finishes\n\n");
+
+ while (1)
+ {
+ len = sizeof(rx_event);
+
+ if (ENOERR != cyg_io_read(hCAN0, &rx_event, &len))
+ {
+ CYG_TEST_FAIL_FINISH("Error reading from /dev/can0");
+ }
+ else
+ {
+ print_can_flags(rx_event.flags, "");
+
+ if (rx_event.flags & CYGNUM_CAN_EVENT_RX)
+ {
+ print_can_msg(&rx_event.msg, "");
+#ifdef CYGOPT_IO_CAN_STD_CAN_ID
+ if (rx_event.msg.id == 0x110)
+ {
+ CYG_TEST_PASS_FINISH("LPC2xxx CAN message filter group test OK");
+ }
+#endif // CYGOPT_IO_CAN_STD_CAN_ID
+
+#ifdef CYGOPT_IO_CAN_EXT_CAN_ID
+ if (rx_event.msg.id == 0x2200)
+ {
+ CYG_TEST_PASS_FINISH("LPC2xxx CAN message filter group test OK");
+ }
+#endif // CYGOPT_IO_CAN_EXT_CAN_ID
+
+ if (((rx_event.msg.id > 0x110) && (rx_event.msg.id < 0x2000))
+ || (rx_event.msg.id > 0x2200))
+ {
+ CYG_TEST_FAIL_FINISH("Received CAN identifier outside filter group bounds");
+ }
+ }
+ }
+ } // while (1)
+}
+
+
+
+void
+cyg_start(void)
+{
+ CYG_TEST_INIT();
+
+ //
+ // open CAN device driver
+ //
+ if (ENOERR != cyg_io_lookup("/dev/can0", &hCAN0))
+ {
+ CYG_TEST_FAIL_FINISH("Error opening /dev/can0");
+ }
+
+ //
+ // create the thread that accesses the CAN device driver
+ //
+ cyg_thread_create(4, can0_thread,
+ (cyg_addrword_t) 0,
+ "can0_thread",
+ (void *) can0_thread_data.stack,
+ 1024 * sizeof(long),
+ &can0_thread_data.hdl,
+ &can0_thread_data.obj);
+
+ cyg_thread_resume(can0_thread_data.hdl);
+
+ cyg_scheduler_start();
+}
+
+#else // CYGOPT_DEVS_CAN_LPC2XXX_EXTENDED_CFG_KEYS
+#define N_A_MSG "Needs support for extended LPC2xxx CAN configuration keys"
+#endif
+
+#else // CYGOPT_IO_CAN_RUNTIME_MBOX_CFG
+#define N_A_MSG "Needs CAN message box runtime confuguration support"
+#endif
+
+#else // CYGFUN_KERNEL_API_C
+#define N_A_MSG "Needs kernel C API"
+#endif
+
+#else // CYGPKG_IO_CAN && CYGPKG_KERNEL
+#define N_A_MSG "Needs Kernel"
+#endif
+
+#ifdef N_A_MSG
+void
+cyg_start( void )
+{
+ CYG_TEST_INIT();
+ CYG_TEST_NA(N_A_MSG);
+}
+#endif // N_A_MSG
+
+// EOF flexcan_remote.c
projects / karo-tx-redboot.git / blobdiff