Merge remote-tracking branch 'mjb/altosdroid'

[fw/altos] / src / avr / ao_spi_slave.c

diff --git a/src/avr/ao_spi_slave.c b/src/avr/ao_spi_slave.c
index a400b8a0a929f0485b8d8da894f43c17ec098f79..15e9924da5d6f20c4b1b454a3393d3fea9d23c31 100644 (file)
--- a/src/avr/ao_spi_slave.c
+++ b/src/avr/ao_spi_slave.c
@@ -18,22 +18,24 @@
 #include "ao.h"
 
 uint8_t
-ao_spi_slave_recv(uint8_t *buf, uint8_t len)
+ao_spi_slave_recv(void *buf, uint16_t len)
 {
+       uint8_t *b = buf;
        while (len--) {
                while (!(SPSR & (1 << SPIF)))
                        if ((PINB & (1 << PINB0)))
                                return 0;
-               *buf++ = SPDR;
+               *b++ = SPDR;
        }
        return 1;
 }
 
 void
-ao_spi_slave_send(uint8_t *buf, uint8_t len)
+ao_spi_slave_send(void *buf, uint16_t len)
 {
+       uint8_t *b = buf;
        while (len--) {
-               SPDR = *buf++;
+               SPDR = *b++;
                while (!(SPSR & (1 << SPIF)))
                        if ((PINB & (1 << PINB0)))
                                return;