/*
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/*
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* Written 1999-03-19 by Jonathan Larmour, Cygnus Solutions
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* Written 1999-03-19 by Jonathan Larmour, Cygnus Solutions
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* This file is in the public domain and may be used for any purpose
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* This file is in the public domain and may be used for any purpose
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*/
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*/
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/* CONFIGURATION CHECKS */
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/* CONFIGURATION CHECKS */
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#include <pkgconf/system.h> /* which packages are enabled/disabled */
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#include <pkgconf/system.h> /* which packages are enabled/disabled */
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#ifdef CYGPKG_KERNEL
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#ifdef CYGPKG_KERNEL
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# include <pkgconf/kernel.h>
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# include <pkgconf/kernel.h>
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#endif
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#endif
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#ifdef CYGPKG_LIBC
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#ifdef CYGPKG_LIBC
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# include <pkgconf/libc.h>
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# include <pkgconf/libc.h>
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#endif
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#endif
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#ifdef CYGPKG_IO_SERIAL
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#ifdef CYGPKG_IO_SERIAL
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# include <pkgconf/io_serial.h>
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# include <pkgconf/io_serial.h>
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#endif
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#endif
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#ifndef CYGFUN_KERNEL_API_C
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#ifndef CYGFUN_KERNEL_API_C
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# error Kernel API must be enabled to build this example
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# error Kernel API must be enabled to build this example
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#endif
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#endif
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#ifndef CYGPKG_LIBC_STDIO
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#ifndef CYGPKG_LIBC_STDIO
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# error C library standard I/O must be enabled to build this example
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# error C library standard I/O must be enabled to build this example
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#endif
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#endif
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#ifndef CYGPKG_IO_SERIAL_HALDIAG
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#ifndef CYGPKG_IO_SERIAL_HALDIAG
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# error I/O HALDIAG pseudo-device driver must be enabled to build this example
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# error I/O HALDIAG pseudo-device driver must be enabled to build this example
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#endif
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#endif
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/* INCLUDES */
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/* INCLUDES */
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#include <stdio.h> /* printf */
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#include <stdio.h> /* printf */
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#include <string.h> /* strlen */
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#include <string.h> /* strlen */
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#include <cyg/kernel/kapi.h> /* All the kernel specific stuff */
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#include <cyg/kernel/kapi.h> /* All the kernel specific stuff */
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#include <cyg/io/io.h> /* I/O functions */
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#include <cyg/io/io.h> /* I/O functions */
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#include <cyg/hal/hal_arch.h> /* CYGNUM_HAL_STACK_SIZE_TYPICAL */
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#include <cyg/hal/hal_arch.h> /* CYGNUM_HAL_STACK_SIZE_TYPICAL */
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/* DEFINES */
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/* DEFINES */
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#define NTHREADS 1
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#define NTHREADS 1
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#define STACKSIZE ( CYGNUM_HAL_STACK_SIZE_TYPICAL + 4096 )
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#define STACKSIZE ( CYGNUM_HAL_STACK_SIZE_TYPICAL + 4096 )
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/* STATICS */
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/* STATICS */
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static cyg_handle_t thread[NTHREADS];
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static cyg_handle_t thread[NTHREADS];
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static cyg_thread thread_obj[NTHREADS];
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static cyg_thread thread_obj[NTHREADS];
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static char stack[NTHREADS][STACKSIZE];
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static char stack[NTHREADS][STACKSIZE];
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/* FUNCTIONS */
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/* FUNCTIONS */
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static void simple_prog(CYG_ADDRESS data)
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static void simple_prog(CYG_ADDRESS data)
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{
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{
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cyg_io_handle_t handle;
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cyg_io_handle_t handle;
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Cyg_ErrNo err;
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Cyg_ErrNo err;
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const char test_string[] = "serial example is working correctly!\n";
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const char test_string[] = "serial example is working correctly!\n";
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cyg_uint32 len = strlen(test_string);
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cyg_uint32 len = strlen(test_string);
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printf("Starting serial example\n");
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printf("Starting serial example\n");
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err = cyg_io_lookup( "/dev/haldiag", &handle );
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err = cyg_io_lookup( "/dev/haldiag", &handle );
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if (ENOERR == err) {
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if (ENOERR == err) {
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printf("Found /dev/haldiag. Writing string....\n");
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printf("Found /dev/haldiag. Writing string....\n");
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err = cyg_io_write( handle, test_string, &len );
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err = cyg_io_write( handle, test_string, &len );
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}
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}
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if (ENOERR == err) {
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if (ENOERR == err) {
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printf("I think I wrote the string. Did you see it?\n");
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printf("I think I wrote the string. Did you see it?\n");
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}
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}
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printf("Serial example finished\n");
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printf("Serial example finished\n");
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}
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}
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void cyg_user_start(void)
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void cyg_user_start(void)
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{
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{
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cyg_thread_create(4, simple_prog, (cyg_addrword_t) 0, "serial",
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cyg_thread_create(4, simple_prog, (cyg_addrword_t) 0, "serial",
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(void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]);
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(void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]);
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cyg_thread_resume(thread[0]);
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cyg_thread_resume(thread[0]);
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}
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}
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