void sparc_ex_main( void )
{
int i;
CYG_TEST_INIT();
for ( i = CYGNUM_HAL_EXCEPTION_MIN; i <= CYGNUM_HAL_EXCEPTION_MAX; i++ ){
int j;
HAL_TRANSLATE_VECTOR( i, j );
HAL_INTERRUPT_ATTACH( j, &fail_exception_handler, j, 0 );
// we must also ensure that eCos handles the exception;
// do not drop into CygMon or equivalent.
// Leave USER_TRAP undisturbed so that breakpoints work.
if ( CYGNUM_HAL_VECTOR_USER_TRAP != i ) {
extern void hal_default_exception_vsr( void );
HAL_VSR_SET( i, (CYG_ADDRESS)hal_default_exception_vsr, NULL );
}
}
HAL_TRANSLATE_VECTOR( CYGNUM_HAL_VECTOR_UNALIGNED, i );
HAL_INTERRUPT_DETACH( i, &fail_exception_handler );
HAL_INTERRUPT_ATTACH( i, &skip_exception_handler, i, 0 );
CYG_TEST_INFO( "Vectors attached OK; calling do_test" );
do_test();
CYG_TEST_EXIT( "Done" );
}
void hal_plf_stub_init(void)
{
// extern CYG_ADDRESS hal_virtual_vector_table[64];
extern void init_thread_syscall( void *);
extern void install_async_breakpoint(void *epc);
void (*oldvsr)(void);
extern void __default_exception_vsr(void);
// Ensure that the breakpoint VSR points to the default VSR. This will pass
// it on to the stubs.
HAL_VSR_SET( CYGNUM_HAL_VECTOR_BREAKPOINT, __default_exception_vsr, &oldvsr );
// Install async breakpoint handler into vector table.
hal_virtual_vector_table[35] = (CYG_ADDRESS)install_async_breakpoint;
#if !defined(CYGPKG_KERNEL) && defined(CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT)
// Only include this code if we do not have a kernel. Otherwise
// the kernel supplies the functionality for the app we are linked
// with.
// Prepare for application installation of thread info function in
// vector table.
hal_virtual_vector_table[15] = 0;
init_thread_syscall( (void *)&hal_virtual_vector_table[15] );
#endif
}
static void
audio_exercise(cyg_addrword_t p)
{
int sample, len;
bool started;
diag_printf("AUDIO test here!\n");
// Enable my special FIQ handler
HAL_VSR_SET(CYGNUM_HAL_VECTOR_FIQ, i2s_FIQ, NULL);
while (TRUE) {
diag_printf("... Starting over\n");
// Set up pointers
cur_buf.length = 0;
next_buf.length = 0;
sample = 0;
started = false;
// Send out the data
while (sample != NUM_PCM_SAMPLES) {
if (next_buf.length == 0) {
// Move some data into the "next" buffer
next_buf.left_chan_ptr = &left_channel[sample];
next_buf.right_chan_ptr = &right_channel[sample];
len = NUM_PCM_SAMPLES - sample;
if (len > CHUNK_LENGTH) len = CHUNK_LENGTH;
next_buf.length = len;
idle();
if (!started) {
started = true;
// Initialize audio interface
I2Sreset();
}
sample += len;
}
}
// Wait for all data to be sent
while (cur_buf.length != 0) {
}
// Shut off audio interface
I2Sdisable();
}
diag_printf("All done!\n");
cyg_test_exit();
}
int
hal_enable_profile_timer(int resolution)
{
cyg_uint16 ticks;
// Make sure the clock is not running but is otherwise initialized.
HAL_WRITE_UINT16(HAL_MCFxxxx_PROFILE_TIMER_BASE + HAL_MCFxxxx_PITx_PCSR,
HAL_MCFxxxx_PITx_PCSR_PRE_64 | HAL_MCFxxxx_PITx_PCSR_OVW |
HAL_MCFxxxx_PITx_PCSR_PIE | HAL_MCFxxxx_PITx_PCSR_PIF |
HAL_MCFxxxx_PITx_PCSR_RLD);
// The resolution is a time interval in microseconds. The actual
// cpu clock frequency is determined by the platform. This is divided
// by 64, which means it may not be possible to get the exact resolution.
ticks = ((resolution * CYGHWR_HAL_SYSTEM_CLOCK_MHZ) / 64) - 1;
HAL_WRITE_UINT16(HAL_MCFxxxx_PROFILE_TIMER_BASE + HAL_MCFxxxx_PITx_PMR, ticks);
// Convert back to microseconds. This may actually increase rounding
// errors for some arguments and platforms, but the result should
// still be accurate enough for practical purposes.
resolution = ((ticks + 1) * 64) / CYGHWR_HAL_SYSTEM_CLOCK_MHZ;
// Set up the interrupt handler. This is usually a high-priority
// interrupt so that we can get profiling information for other
// interrupt sources.
#ifdef HAL_VSR_SET
HAL_VSR_SET(HAL_MCFxxxx_PROFILE_TIMER_VECTOR, &hal_mcfxxxx_profile_vsr, (cyg_uint32)0);
#endif
HAL_INTERRUPT_SET_LEVEL(HAL_MCFxxxx_PROFILE_TIMER_ISR, CYGNUM_HAL_M68K_MCFxxxx_SOFTWARE_PROFILE_TIMER_ISR_PRIORITY);
HAL_INTERRUPT_UNMASK(HAL_MCFxxxx_PROFILE_TIMER_ISR);
// Now start the timer running.
HAL_WRITE_UINT16(HAL_MCFxxxx_PROFILE_TIMER_BASE + HAL_MCFxxxx_PITx_PCSR,
HAL_MCFxxxx_PITx_PCSR_PRE_64 | HAL_MCFxxxx_PITx_PCSR_OVW |
HAL_MCFxxxx_PITx_PCSR_PIE | HAL_MCFxxxx_PITx_PCSR_PIF |
HAL_MCFxxxx_PITx_PCSR_RLD | HAL_MCFxxxx_PITx_PCSR_EN);
// Return the actual resolution.
return resolution;
}
