Index: uspace/lib/c/Makefile =================================================================== --- uspace/lib/c/Makefile (revision 57914494f0017d0618e3eaa16f2ae9c2fd1baefd) +++ uspace/lib/c/Makefile (revision c4c60250a236ed30397cd89ce5cea5eaf59cfba5) @@ -118,4 +118,5 @@ generic/io/kio.c \ generic/io/klog.c \ + generic/io/serial.c \ generic/io/snprintf.c \ generic/io/vprintf.c \ Index: uspace/lib/c/generic/io/serial.c =================================================================== --- uspace/lib/c/generic/io/serial.c (revision c4c60250a236ed30397cd89ce5cea5eaf59cfba5) +++ uspace/lib/c/generic/io/serial.c (revision c4c60250a236ed30397cd89ce5cea5eaf59cfba5) @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2017 Jiri Svoboda + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include + +/** Open serial port device. + * + * @param sess Session with the serial port device + * @param rchardev Place to store pointer to the new serial port device structure + * + * @return EOK on success, ENOMEM if out of memory, EIO on I/O error + */ +int serial_open(async_sess_t *sess, serial_t **rserial) +{ + serial_t *serial; + + serial = calloc(1, sizeof(serial_t)); + if (serial == NULL) + return ENOMEM; + + serial->sess = sess; + *rserial = serial; + + return EOK; +} + +/** Close serial port device. + * + * Frees the serial port device structure. The underlying session is + * not affected. + * + * @param serial Serial port device or @c NULL + */ +void serial_close(serial_t *serial) +{ + free(serial); +} + +/** Set serial port communication properties. */ +int serial_set_comm_props(serial_t *serial, unsigned rate, + serial_parity_t parity, unsigned datab, unsigned stopb) +{ + async_exch_t *exch = async_exchange_begin(serial->sess); + + int rc = async_req_4_0(exch, SERIAL_SET_COM_PROPS, rate, parity, + datab, stopb); + + async_exchange_end(exch); + return rc; +} + +/** Get serial port communication properties. */ +int serial_get_comm_props(serial_t *serial, unsigned *rrate, + serial_parity_t *rparity, unsigned *rdatab, unsigned *rstopb) +{ + async_exch_t *exch = async_exchange_begin(serial->sess); + sysarg_t rate, parity, datab, stopb; + + int rc = async_req_0_4(exch, SERIAL_GET_COM_PROPS, &rate, &parity, + &datab, &stopb); + + async_exchange_end(exch); + if (rc != EOK) + return rc; + + *rrate = rate; + *rparity = parity; + *rdatab = datab; + *rstopb = stopb; + + return EOK; +} + +/** @} + */ Index: uspace/lib/c/include/io/serial.h =================================================================== --- uspace/lib/c/include/io/serial.h (revision c4c60250a236ed30397cd89ce5cea5eaf59cfba5) +++ uspace/lib/c/include/io/serial.h (revision c4c60250a236ed30397cd89ce5cea5eaf59cfba5) @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2017 Jiri Svoboda + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * - The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** @addtogroup libc + * @{ + */ +/** @file + */ + +#ifndef LIBC_IO_SERIAL_H_ +#define LIBC_IO_SERIAL_H_ + +#include +#include + +typedef struct { + async_sess_t *sess; +} serial_t; + +extern int serial_open(async_sess_t *, serial_t **); +extern void serial_close(serial_t *); +extern int serial_set_comm_props(serial_t *, unsigned, serial_parity_t, + unsigned, unsigned); +extern int serial_get_comm_props(serial_t *, unsigned *, serial_parity_t *, + unsigned *, unsigned *); + +#endif + +/** @} + */