4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * GNU General Public License for more details.
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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21 * library without restriction. Specifically, if other files instantiate
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24 * file does not by itself cause the resulting executable to be covered by
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29 * Copyright 2007, 2010 Develer S.r.l. (http://www.develer.com/)
35 * \author Daniele Basile <asterix@develer.com>
36 * \author Luca Ottaviano <lottaviano@develer.com>
38 * \brief Low-level serial module for AVR (interface).
45 #include <cfg/macros.h> /* BV() */
46 #include <cfg/compiler.h> /* uint32_t */
48 typedef uint8_t serstatus_t;
51 #define SERRF_RXFIFOOVERRUN BV(0) /**< Rx FIFO buffer overrun */
52 #define SERRF_RXTIMEOUT BV(5) /**< Receive timeout */
53 #define SERRF_TXTIMEOUT BV(6) /**< Transmit timeout */
57 * These flags map directly to the AVR UART Status Register (USR).
59 #define SERRF_RXSROVERRUN BV(3) /**< Rx shift register overrun */
60 #define SERRF_FRAMEERROR BV(4) /**< Stop bit missing */
61 #define SERRF_PARITYERROR BV(7) /**< Parity error */
62 #define SERRF_NOISEERROR 0 /**< Unsupported */
68 * $WIZ$ ser_spi_pol = "SPI_NORMAL_LOW", "SPI_NORMAL_HIGH"
71 #define SPI_NORMAL_LOW 0
72 #define SPI_NORMAL_HIGH 1
77 * $WIZ$ ser_spi_phase = "SPI_SAMPLE_ON_FIRST_EDGE", "SPI_SAMPLE_ON_SECOND_EDGE"
80 #define SPI_SAMPLE_ON_FIRST_EDGE 0
81 #define SPI_SAMPLE_ON_SECOND_EDGE 1
84 * \name Serial hw numbers
90 #if CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA1281
94 #elif CPU_AVR_ATMEGA103 || CPU_AVR_ATMEGA8 || CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P
98 #error unknown architecture
100 SER_CNT /**< Number of serial ports */
104 #endif /* DRV_SER_AVR_H */