*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
*/
#define ao_spi_get_mask(reg,mask,bus,speed) do { \
- (reg) &= ~(mask); \
+ (reg) &= ~(mask); \
} while (0)
#define ao_spi_put_mask(reg,mask,bus) do { \
(reg) |= (mask); \
} while (0)
-#define ao_spi_get_bit(reg,bit,pin,bus,speed) do { \
- (pin) = 0; \
- } while (0)
-
-#define ao_spi_put_bit(reg,bit,pin,bus) do { \
- (pin) = 1; \
- } while (0)
+#define ao_spi_get_bit(reg,bit,pin,bus,speed) ao_spi_get_mask(reg,(1<<(bit)),bus,speed)
+#define ao_spi_put_bit(reg,bit,pin,bus) ao_spi_put_mask(reg,(1<<(bit)),bus)
#define ao_gpio_token_paster(x,y) x ## y
#define ao_gpio_token_evaluator(x,y) ao_gpio_token_paster(x,y)
PORTB &= ~(1 << bit); \
} while (0)
+#define ao_gpio_get(port, bit, pin) ((PORTB >> (bit)) & 1)
+
/*
* The SPI mutex must be held to call either of these
* functions -- this mutex covers the entire SPI operation,