1 /* $OpenBSD: com_puc.c,v 1.28 2023/09/11 08:41:27 mvs 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/tty.h>
35 #include <sys/conf.h>
36 #include <sys/uio.h>
37 #include <sys/kernel.h>
38 #include <sys/syslog.h>
39 #include <sys/device.h>
40
41 #include <machine/intr.h>
42 #include <machine/bus.h>
43
44 #include <dev/pci/pucvar.h>
45
46 #include "com.h"
47
48 #include <dev/ic/comreg.h>
49 #include <dev/ic/comvar.h>
50 #include <dev/ic/ns16550reg.h>
51
52 #define com_lcr com_cfcr
53
54 int com_puc_match(struct device *, void *, void *);
55 void com_puc_attach(struct device *, struct device *, void *);
56 int com_puc_detach(struct device *, int);
57
58 const struct cfattach com_puc_ca = {
59 sizeof(struct com_softc), com_puc_match,
60 com_puc_attach, com_puc_detach, com_activate
61 };
62
63 int
com_puc_match(struct device * parent,void * match,void * aux)64 com_puc_match(struct device *parent, void *match, void *aux)
65 {
66 struct puc_attach_args *pa = aux;
67
68 if (PUC_IS_COM(pa->type))
69 return(1);
70
71 return(0);
72 }
73
74 void
com_puc_attach(struct device * parent,struct device * self,void * aux)75 com_puc_attach(struct device *parent, struct device *self, void *aux)
76 {
77 struct com_softc *sc = (void *)self;
78 struct puc_attach_args *pa = aux;
79 const char *intrstr;
80 int i;
81
82 /* Grab a PCI interrupt. */
83 intrstr = pa->intr_string(pa);
84 sc->sc_ih = pa->intr_establish(pa, IPL_TTY, comintr, sc,
85 sc->sc_dev.dv_xname);
86 if (sc->sc_ih == NULL) {
87 printf(": couldn't establish interrupt");
88 if (intrstr != NULL)
89 printf(" at %s", intrstr);
90 printf("\n");
91 return;
92 }
93 printf(" %s", intrstr);
94
95 sc->sc_iot = pa->t;
96 sc->sc_ioh = pa->h;
97 sc->sc_iobase = pa->a;
98
99 sc->sc_frequency = COM_FREQ;
100
101 for (i = 0; i < nitems(puc_port_types); i++)
102 if (puc_port_types[i].type == pa->type) {
103 sc->sc_frequency = puc_port_types[i].freq;
104 break;
105 }
106
107 if (pa->type == PUC_PORT_COM_XR17V35X)
108 sc->sc_uarttype = COM_UART_XR17V35X;
109
110 com_attach_subr(sc);
111 }
112
113 int
com_puc_detach(struct device * self,int flags)114 com_puc_detach(struct device *self, int flags)
115 {
116 return com_detach(self, flags);
117 }
118