1 #ifndef CYGONCE_SERIALIO_H
2 #define CYGONCE_SERIALIO_H
3 // ====================================================================
9 // ====================================================================
10 //####ECOSGPLCOPYRIGHTBEGIN####
11 // -------------------------------------------
12 // This file is part of eCos, the Embedded Configurable Operating System.
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29 // or inline functions from this file, or you compile this file and link it
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40 // -------------------------------------------
41 //####ECOSGPLCOPYRIGHTEND####
42 // ====================================================================
43 //#####DESCRIPTIONBEGIN####
46 // Contributors: gthomas
48 // Purpose: Special support for serial I/O devices
51 //####DESCRIPTIONEND####
53 // ====================================================================
55 // This file contains the user-level visible I/O interfaces
57 #include <pkgconf/system.h>
58 #include <pkgconf/io_serial.h>
59 #include <pkgconf/hal.h>
60 #include <cyg/infra/cyg_type.h>
61 #include <cyg/io/config_keys.h>
67 // Supported baud rates
69 CYGNUM_SERIAL_BAUD_50 = 1,
70 CYGNUM_SERIAL_BAUD_75,
71 CYGNUM_SERIAL_BAUD_110,
72 CYGNUM_SERIAL_BAUD_134_5,
73 CYGNUM_SERIAL_BAUD_150,
74 CYGNUM_SERIAL_BAUD_200,
75 CYGNUM_SERIAL_BAUD_300,
76 CYGNUM_SERIAL_BAUD_600,
77 CYGNUM_SERIAL_BAUD_1200,
78 CYGNUM_SERIAL_BAUD_1800,
79 CYGNUM_SERIAL_BAUD_2400,
80 CYGNUM_SERIAL_BAUD_3600,
81 CYGNUM_SERIAL_BAUD_4800,
82 CYGNUM_SERIAL_BAUD_7200,
83 CYGNUM_SERIAL_BAUD_9600,
84 CYGNUM_SERIAL_BAUD_14400,
85 CYGNUM_SERIAL_BAUD_19200,
86 CYGNUM_SERIAL_BAUD_38400,
87 CYGNUM_SERIAL_BAUD_57600,
88 CYGNUM_SERIAL_BAUD_115200,
89 CYGNUM_SERIAL_BAUD_230400,
90 CYGNUM_SERIAL_BAUD_460800,
91 CYGNUM_SERIAL_BAUD_921600
92 } cyg_serial_baud_rate_t;
93 #define CYGNUM_SERIAL_BAUD_MIN CYGNUM_SERIAL_BAUD_50
94 #define CYGNUM_SERIAL_BAUD_MAX CYGNUM_SERIAL_BAUD_921600
96 // Note: two levels of macro are required to get proper expansion.
97 #define _CYG_SERIAL_BAUD_RATE(n) CYGNUM_SERIAL_BAUD_##n
98 #define CYG_SERIAL_BAUD_RATE(n) _CYG_SERIAL_BAUD_RATE(n)
100 // Stop bit selections
102 CYGNUM_SERIAL_STOP_1 = 1,
103 CYGNUM_SERIAL_STOP_1_5,
105 } cyg_serial_stop_bits_t;
109 CYGNUM_SERIAL_PARITY_NONE = 0,
110 CYGNUM_SERIAL_PARITY_EVEN,
111 CYGNUM_SERIAL_PARITY_ODD,
112 CYGNUM_SERIAL_PARITY_MARK,
113 CYGNUM_SERIAL_PARITY_SPACE
114 } cyg_serial_parity_t;
118 CYGNUM_SERIAL_WORD_LENGTH_5 = 5,
119 CYGNUM_SERIAL_WORD_LENGTH_6,
120 CYGNUM_SERIAL_WORD_LENGTH_7,
121 CYGNUM_SERIAL_WORD_LENGTH_8
122 } cyg_serial_word_length_t;
125 cyg_serial_baud_rate_t baud;
126 cyg_serial_stop_bits_t stop;
127 cyg_serial_parity_t parity;
128 cyg_serial_word_length_t word_length;
132 // cyg_serial_info_t flags
133 #define CYGNUM_SERIAL_FLOW_NONE (0)
134 // receive flow control, send xon/xoff when necessary:
135 #define CYGNUM_SERIAL_FLOW_XONXOFF_RX (1<<0)
136 // transmit flow control, act on received xon/xoff:
137 #define CYGNUM_SERIAL_FLOW_XONXOFF_TX (1<<1)
138 // receive flow control, send RTS when necessary:
139 #define CYGNUM_SERIAL_FLOW_RTSCTS_RX (1<<2)
140 // transmit flow control, act when not CTS:
141 #define CYGNUM_SERIAL_FLOW_RTSCTS_TX (1<<3)
142 // receive flow control, send DTR when necessary:
143 #define CYGNUM_SERIAL_FLOW_DSRDTR_RX (1<<4)
144 // transmit flow control, act when not DSR:
145 #define CYGNUM_SERIAL_FLOW_DSRDTR_TX (1<<5)
147 // arguments for CYG_IO_SET_CONFIG_SERIAL_FLOW_CONTROL_FORCE
148 #define CYGNUM_SERIAL_FLOW_THROTTLE_RX 0
149 #define CYGNUM_SERIAL_FLOW_RESTART_RX 1
150 #define CYGNUM_SERIAL_FLOW_THROTTLE_TX 2
151 #define CYGNUM_SERIAL_FLOW_RESTART_TX 3
153 // arguments for CYG_IO_SET_CONFIG_SERIAL_HW_RX_FLOW_THROTTLE
154 #define CYGNUM_SERIAL_FLOW_HW_UNTHROTTLE 0
155 #define CYGNUM_SERIAL_FLOW_HW_THROTTLE 0
156 #define CYGNUM_SERIAL_FLOW_HW_UNTHROTTLE 0
159 cyg_int32 rx_bufsize;
161 cyg_int32 tx_bufsize;
163 } cyg_serial_buf_info_t;
165 #define CYG_SERIAL_INFO_INIT(_baud,_stop,_parity,_word_length,_flags) \
166 { _baud, _stop, _parity, _word_length, _flags}
168 #ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
170 # define CYGNUM_SERIAL_STATUS_FLOW 0
171 # define CYGNUM_SERIAL_STATUS_BREAK 1
172 # define CYGNUM_SERIAL_STATUS_FRAMEERR 2
173 # define CYGNUM_SERIAL_STATUS_PARITYERR 3
174 # define CYGNUM_SERIAL_STATUS_OVERRUNERR 4
175 # define CYGNUM_SERIAL_STATUS_CARRIERDETECT 5
176 # define CYGNUM_SERIAL_STATUS_RINGINDICATOR 6
179 cyg_uint32 which; // one of CYGNUM_SERIAL_STATUS_* above
180 cyg_uint32 value; // and its value
181 } cyg_serial_line_status_t;
183 typedef void (*cyg_serial_line_status_callback_fn_t)(
184 cyg_serial_line_status_t *s,
187 cyg_serial_line_status_callback_fn_t fn;
189 } cyg_serial_line_status_callback_t;
191 #endif // ifdef CYGOPT_IO_SERIAL_SUPPORT_LINE_STATUS
193 // Default configuration
194 #define CYG_SERIAL_BAUD_DEFAULT CYGNUM_SERIAL_BAUD_38400
195 #define CYG_SERIAL_STOP_DEFAULT CYGNUM_SERIAL_STOP_1
196 #define CYG_SERIAL_PARITY_DEFAULT CYGNUM_SERIAL_PARITY_NONE
197 #define CYG_SERIAL_WORD_LENGTH_DEFAULT CYGNUM_SERIAL_WORD_LENGTH_8
199 #ifdef CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_XONXOFF
200 # define CYG_SERIAL_FLAGS_DEFAULT (CYGNUM_SERIAL_FLOW_XONXOFF_RX|CYGNUM_SERIAL_FLOW_XONXOFF_TX)
201 #elif defined(CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_RTSCTS)
202 # define CYG_SERIAL_FLAGS_DEFAULT (CYGNUM_SERIAL_FLOW_RTSCTS_RX|CYGNUM_SERIAL_FLOW_RTSCTS_TX)
203 #elif defined(CYGDAT_IO_SERIAL_FLOW_CONTROL_DEFAULT_DSRDTR)
204 # define CYG_SERIAL_FLAGS_DEFAULT (CYGNUM_SERIAL_FLOW_DSRDTR_RX|CYGNUM_SERIAL_FLOW_DSRDTR_TX)
206 # define CYG_SERIAL_FLAGS_DEFAULT 0
213 #endif /* CYGONCE_SERIALIO_H */