From 5beceaae5c57dcf1b92d1def5954ac331a19a63a Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Mon, 23 Jan 2017 11:13:19 -0500 Subject: io.h: read/write[bwl] should use barrier Add barrier() calls to low-level read/write io calls so that their callers don't need to. Signed-off-by: Kevin O'Connor --- src/avr/serial.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'src/avr/serial.c') diff --git a/src/avr/serial.c b/src/avr/serial.c index 0b5fea1f..32619ecc 100644 --- a/src/avr/serial.c +++ b/src/avr/serial.c @@ -126,12 +126,10 @@ console_get_output(uint8_t len) return NULL; // Disable TX irq and move buffer writeb(&transmit_max, 0); - barrier(); tpos = readb(&transmit_pos); tmax -= tpos; memmove(&transmit_buf[0], &transmit_buf[tpos], tmax); writeb(&transmit_pos, 0); - barrier(); writeb(&transmit_max, tmax); enable_tx_irq(); return &transmit_buf[tmax]; @@ -141,7 +139,6 @@ console_get_output(uint8_t len) void console_push_output(uint8_t len) { - barrier(); writeb(&transmit_max, readb(&transmit_max) + len); enable_tx_irq(); } -- cgit v1.2.3-70-g09d2