1 /* $NetBSD: ucomvar.h,v 1.18 2010/03/13 16:28:13 scw Exp $ */ 2 3 /* 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 34 /* just for ucom_attach_args, not in the config namespace */ 35 #define UCOM_UNK_PORTNO (-1) 36 37 struct ucom_softc; 38 39 struct ucom_methods { 40 void (*ucom_get_status)(void *sc, int portno, u_char *lsr, u_char *msr); 41 void (*ucom_set)(void *sc, int portno, int reg, int onoff); 42 #define UCOM_SET_DTR 1 43 #define UCOM_SET_RTS 2 44 #define UCOM_SET_BREAK 3 45 int (*ucom_param)(void *sc, int portno, struct termios *); 46 int (*ucom_ioctl)(void *sc, int portno, u_long cmd, 47 void *data, int flag, usb_proc_ptr p); 48 int (*ucom_open)(void *sc, int portno); 49 void (*ucom_close)(void *sc, int portno); 50 /* 51 * Note: The 'ptr' and 'count' pointers can be adjusted as follows: 52 * ptr: If consuming characters from the start of the buffer, 53 * advance '*ptr' to skip the data consumed. 54 * count: If consuming characters at the end of the buffer, 55 * decrement '*count' by the number of characters consumed. 56 * If consuming all characters, set '*count' to zero. 57 */ 58 void (*ucom_read)(void *sc, int portno, u_char **ptr, u_int32_t *count); 59 void (*ucom_write)(void *sc, int portno, u_char *to, u_char *from, 60 u_int32_t *count); 61 }; 62 63 /* modem control register */ 64 #define UMCR_RTS 0x02 /* Request To Send */ 65 #define UMCR_DTR 0x01 /* Data Terminal Ready */ 66 67 /* line status register */ 68 #define ULSR_RCV_FIFO 0x80 69 #define ULSR_TSRE 0x40 /* Transmitter empty: byte sent */ 70 #define ULSR_TXRDY 0x20 /* Transmitter buffer empty */ 71 #define ULSR_BI 0x10 /* Break detected */ 72 #define ULSR_FE 0x08 /* Framing error: bad stop bit */ 73 #define ULSR_PE 0x04 /* Parity error */ 74 #define ULSR_OE 0x02 /* Overrun, lost incoming byte */ 75 #define ULSR_RXRDY 0x01 /* Byte ready in Receive Buffer */ 76 #define ULSR_RCV_MASK 0x1f /* Mask for incoming data or error */ 77 78 /* modem status register */ 79 /* All deltas are from the last read of the MSR. */ 80 #define UMSR_DCD 0x80 /* Current Data Carrier Detect */ 81 #define UMSR_RI 0x40 /* Current Ring Indicator */ 82 #define UMSR_DSR 0x20 /* Current Data Set Ready */ 83 #define UMSR_CTS 0x10 /* Current Clear to Send */ 84 #define UMSR_DDCD 0x08 /* DCD has changed state */ 85 #define UMSR_TERI 0x04 /* RI has toggled low to high */ 86 #define UMSR_DDSR 0x02 /* DSR has changed state */ 87 #define UMSR_DCTS 0x01 /* CTS has changed state */ 88 89 struct ucom_attach_args { 90 int portno; 91 int bulkin; 92 int bulkout; 93 u_int ibufsize; 94 u_int ibufsizepad; 95 u_int obufsize; 96 u_int opkthdrlen; 97 const char *info; /* attach message */ 98 usbd_device_handle device; 99 usbd_interface_handle iface; 100 struct ucom_methods *methods; 101 void *arg; 102 }; 103 104 int ucomprint(void *, const char *); 105 int ucomsubmatch(device_t t, cfdata_t, const int *, void *); 106 void ucom_status_change(struct ucom_softc *); 107