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