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grlib: Move source files

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Update #3678.
This commit is contained in:
Sebastian Huber
2018-12-22 18:31:04 +01:00
parent 3172092576
commit 7eb606d393
69 changed files with 71 additions and 202 deletions
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52
bsps/shared/grlib/uart/apbuart_polled.c Normal file
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@@ -0,0 +1,52 @@
/*
* COPYRIGHT (c) 2010.
* Cobham Gaisler AB.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <grlib/apbuart.h>
void apbuart_outbyte_polled(
struct apbuart_regs *regs,
unsigned char ch,
int do_cr_on_newline,
int wait_sent
)
{
send:
while ( (regs->status & APBUART_STATUS_TE) == 0 ) {
/* Lower bus utilization while waiting for UART */
__asm__ volatile ("nop"::); __asm__ volatile ("nop"::);
__asm__ volatile ("nop"::); __asm__ volatile ("nop"::);
__asm__ volatile ("nop"::); __asm__ volatile ("nop"::);
__asm__ volatile ("nop"::); __asm__ volatile ("nop"::);
}
if ((ch == '\n') && do_cr_on_newline) {
regs->data = (unsigned int) '\r';
do_cr_on_newline = 0;
goto send;
}
regs->data = (unsigned int) ch;
/* Wait until the character has been sent? */
if (wait_sent) {
while ((regs->status & APBUART_STATUS_TE) == 0)
;
}
}
int apbuart_inbyte_nonblocking(struct apbuart_regs *regs)
{
/* Clear errors */
if (regs->status & APBUART_STATUS_ERR)
regs->status = ~APBUART_STATUS_ERR;
if ((regs->status & APBUART_STATUS_DR) == 0)
return -1;
else
return (int) regs->data;
}