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| author | Leo C | 2014-08-12 12:35:28 +0200 |
|---|---|---|
| committer | Leo C | 2014-08-12 12:35:28 +0200 |
| commit | d684c21619905153eff68c43927207248925f6c2 (patch) | |
| tree | c4bfb04a20512679103c6ad39fd9885dea6d9e76 /avr/serial.c | |
| parent | 9b6b4b31e8cb284ad6a68fe16d458e36bbfb46fa (diff) | |
| download | z180-stamp-d684c21619905153eff68c43927207248925f6c2.zip | |
New U-Boot like AVR main program.
Uses U-Boot source code taken from:
git://git.denx.de/u-boot.git
Diffstat (limited to 'avr/serial.c')
| -rw-r--r-- | avr/serial.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/avr/serial.c b/avr/serial.c index 2d2c551..b2fea51 100644 --- a/avr/serial.c +++ b/avr/serial.c @@ -106,7 +106,7 @@ int serial_getc(void) return ring_read_ch(&rx_ring); } -void serial_putc(uint8_t data) +void serial_putc(char data) { while (ring_write_ch(&tx_ring, data) < 0) ; @@ -115,3 +115,9 @@ void serial_putc(uint8_t data) UCSR0B = _BV(RXCIE0) | _BV(RXEN0) | _BV(TXEN0) | _BV(UDRIE0); } +uint_fast8_t serial_tstc(void) +{ + return !ring_is_empty(&rx_ring); +} + + |