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bsp/tms570: fixed sci driver freeze when closing terminal bug

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tms570_sci_interrupt_last_close: do not wait for old data transmit.

Signed-off-by: Premysl Houdek <kom541000@gmail.com>
This commit is contained in:
Premysl Houdek
2015-11-12 23:11:29 +01:00
committed by Gedare Bloom
parent e73d93247e
commit 08a98f757b
1 changed files with 5 additions and 3 deletions
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8
c/src/lib/libbsp/arm/tms570/console/tms570-sci.c
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@@ -531,9 +531,11 @@ static void tms570_sci_interrupt_last_close(
tms570_sci_disable_interrupts(ctx); tms570_sci_disable_interrupts(ctx);
rtems_termios_device_lock_release(base, &lock_context); rtems_termios_device_lock_release(base, &lock_context);
/* Flush device */ if ( 0 /* for flush on close */ ) {
while ( ( ctx->regs->FLR & TMS570_SCI_FLR_TX_EMPTY ) > 0 ) { /* Flush device */
;/* Wait until all data has been sent */ while ( ( ctx->regs->FLR & TMS570_SCI_FLR_TX_EMPTY ) == 0 ) {
;/* Wait until all data has been sent */
}
} }
/* uninstall ISR */ /* uninstall ISR */