1 /* $OpenBSD: com_dino.c,v 1.5 2022/03/13 08:04:38 mpi Exp $ */
2
3 /*
4 * Copyright (c) 2004 Michael Shalayeff
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/device.h>
32 #include <sys/tty.h>
33
34 #include <machine/bus.h>
35 #include <machine/intr.h>
36 #include <machine/iomod.h>
37 #include <machine/autoconf.h>
38
39 #include <dev/ic/comreg.h>
40 #include <dev/ic/comvar.h>
41
42 #include <hppa/dev/cpudevs.h>
43
44 void *dino_intr_establish(void *sc, int irq, int pri,
45 int (*handler)(void *v), void *arg, const char *name);
46
47 #define COM_DINO_FREQ 7272700
48
49 struct com_dino_regs {
50 u_int8_t reset;
51 u_int8_t pad0[3];
52 u_int8_t test;
53 #define COM_DINO_PAR_LOOP 0x01
54 #define COM_DINO_CLK_SEL 0x02
55 u_int8_t pad1[3];
56 u_int32_t iodc;
57 u_int8_t pad2[0x54];
58 u_int8_t dither;
59 };
60
61 int com_dino_match(struct device *, void *, void *);
62 void com_dino_attach(struct device *, struct device *, void *);
63
64 const struct cfattach com_dino_ca = {
65 sizeof(struct com_softc), com_dino_match, com_dino_attach
66 };
67
68 int
com_dino_match(parent,match,aux)69 com_dino_match(parent, match, aux)
70 struct device *parent;
71 void *match, *aux;
72 {
73 struct confargs *ca = aux;
74
75 if (ca->ca_type.iodc_type != HPPA_TYPE_FIO ||
76 ca->ca_type.iodc_sv_model != HPPA_FIO_GRS232)
77 return (0);
78
79 return (1);
80 /* HOZER comprobe1(ca->ca_iot, ca->ca_hpa + IOMOD_DEVOFFSET); */
81 }
82
83 void
com_dino_attach(parent,self,aux)84 com_dino_attach(parent, self, aux)
85 struct device *parent, *self;
86 void *aux;
87 {
88 struct com_softc *sc = (void *)self;
89 struct confargs *ca = aux;
90 struct com_dino_regs *regs = (struct com_dino_regs *)ca->ca_hpa;
91
92 sc->sc_iot = ca->ca_iot;
93 sc->sc_iobase = (bus_addr_t)ca->ca_hpa + IOMOD_DEVOFFSET;
94
95 if (bus_space_map(sc->sc_iot, sc->sc_iobase, COM_NPORTS,
96 0, &sc->sc_ioh)) {
97 printf(": cannot map io space\n");
98 return;
99 }
100
101 if (PAGE0->mem_cons.pz_class == PCL_DUPLEX &&
102 PAGE0->mem_cons.pz_hpa == ca->ca_hpa) {
103 bus_space_unmap(sc->sc_iot, sc->sc_ioh, COM_NPORTS);
104 comcnattach(sc->sc_iot, sc->sc_iobase, comdefaultrate,
105 COM_DINO_FREQ, comconscflag);
106 }
107
108 /* select clock freq */
109 regs->test = COM_DINO_CLK_SEL;
110 sc->sc_frequency = COM_DINO_FREQ;
111
112 com_attach_subr(sc);
113
114 sc->sc_ih = dino_intr_establish(parent, ca->ca_irq, IPL_TTY,
115 comintr, sc, sc->sc_dev.dv_xname);
116 }
117