1 /* $OpenBSD: com_puc.c,v 1.26 2021/03/05 13:20:19 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 1997 - 1999, Jason Downs. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name(s) of the author(s) nor the name OpenBSD 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS 19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/ioctl.h> 34 #include <sys/selinfo.h> 35 #include <sys/tty.h> 36 #include <sys/conf.h> 37 #include <sys/uio.h> 38 #include <sys/kernel.h> 39 #include <sys/syslog.h> 40 #include <sys/device.h> 41 42 #include <machine/intr.h> 43 #include <machine/bus.h> 44 45 #include <dev/pci/pucvar.h> 46 47 #include "com.h" 48 49 #include <dev/ic/comreg.h> 50 #include <dev/ic/comvar.h> 51 #include <dev/ic/ns16550reg.h> 52 53 #define com_lcr com_cfcr 54 55 int com_puc_match(struct device *, void *, void *); 56 void com_puc_attach(struct device *, struct device *, void *); 57 int com_puc_detach(struct device *, int); 58 59 struct cfattach com_puc_ca = { 60 sizeof(struct com_softc), com_puc_match, 61 com_puc_attach, com_puc_detach, com_activate 62 }; 63 64 int 65 com_puc_match(struct device *parent, void *match, void *aux) 66 { 67 struct puc_attach_args *pa = aux; 68 69 if (PUC_IS_COM(pa->type)) 70 return(1); 71 72 return(0); 73 } 74 75 void 76 com_puc_attach(struct device *parent, struct device *self, void *aux) 77 { 78 struct com_softc *sc = (void *)self; 79 struct puc_attach_args *pa = aux; 80 const char *intrstr; 81 int i; 82 83 /* Grab a PCI interrupt. */ 84 intrstr = pa->intr_string(pa); 85 sc->sc_ih = pa->intr_establish(pa, IPL_TTY, comintr, sc, 86 sc->sc_dev.dv_xname); 87 if (sc->sc_ih == NULL) { 88 printf(": couldn't establish interrupt"); 89 if (intrstr != NULL) 90 printf(" at %s", intrstr); 91 printf("\n"); 92 return; 93 } 94 printf(" %s", intrstr); 95 96 sc->sc_iot = pa->t; 97 sc->sc_ioh = pa->h; 98 sc->sc_iobase = pa->a; 99 100 sc->sc_frequency = COM_FREQ; 101 102 for (i = 0; i < nitems(puc_port_types); i++) 103 if (puc_port_types[i].type == pa->type) { 104 sc->sc_frequency = puc_port_types[i].freq; 105 break; 106 } 107 108 if (pa->type == PUC_PORT_COM_XR17V35X) 109 sc->sc_uarttype = COM_UART_XR17V35X; 110 111 com_attach_subr(sc); 112 } 113 114 int 115 com_puc_detach(struct device *self, int flags) 116 { 117 return com_detach(self, flags); 118 } 119