1 /* $NetBSD: pckbc_sableio.c,v 1.15 2021/05/07 16:58:34 thorpej 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 Jason R. Thorpe.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
33
34 __KERNEL_RCSID(0, "$NetBSD: pckbc_sableio.c,v 1.15 2021/05/07 16:58:34 thorpej Exp $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/proc.h>
40 #include <sys/device.h>
41 #include <sys/kmem.h>
42 #include <sys/errno.h>
43 #include <sys/queue.h>
44 #include <sys/intr.h>
45 #include <sys/bus.h>
46
47 #include <dev/ic/i8042reg.h>
48 #include <dev/ic/pckbcvar.h>
49
50 #include <dev/pci/pcivar.h>
51 #include <dev/isa/isavar.h>
52
53 #include <alpha/sableio/sableiovar.h>
54
55 struct pckbc_sableio_softc {
56 struct pckbc_softc sc_pckbc; /* real "pckbc" softc */
57
58 /* STDIO-specific goo. */
59 void *sc_ih[PCKBC_NSLOTS]; /* interrupt handlers */
60 int sc_irq[PCKBC_NSLOTS]; /* Sable IRQs to use */
61 pci_chipset_tag_t sc_pc; /* PCI chipset for registering intrs */
62 };
63
64 static int pckbc_sableio_match(device_t, cfdata_t, void *);
65 static void pckbc_sableio_attach(device_t, device_t, void *);
66
67 CFATTACH_DECL_NEW(pckbc_sableio, sizeof(struct pckbc_sableio_softc),
68 pckbc_sableio_match, pckbc_sableio_attach, NULL, NULL);
69
70 static void pckbc_sableio_intr_establish(struct pckbc_softc *,
71 pckbc_slot_t);
72
73 static int
pckbc_sableio_match(device_t parent,cfdata_t match,void * aux)74 pckbc_sableio_match(device_t parent, cfdata_t match, void *aux)
75 {
76 struct sableio_attach_args *sa = aux;
77
78 /* Always present. */
79 if (strcmp(sa->sa_name, match->cf_name) == 0)
80 return (1);
81
82 return (0);
83 }
84
85 static void
pckbc_sableio_attach(device_t parent,device_t self,void * aux)86 pckbc_sableio_attach(device_t parent, device_t self, void *aux)
87 {
88 struct pckbc_sableio_softc *ssc = device_private(self);
89 struct pckbc_softc *sc = &ssc->sc_pckbc;
90 struct sableio_attach_args *sa = aux;
91 struct pckbc_internal *t;
92 bus_space_handle_t ioh_d, ioh_c;
93
94 sc->sc_dv = self;
95 ssc->sc_pc = sa->sa_pc;
96
97 /*
98 * Set up IRQs.
99 */
100 ssc->sc_irq[PCKBC_KBD_SLOT] = sa->sa_sableirq[0];
101 ssc->sc_irq[PCKBC_AUX_SLOT] = sa->sa_sableirq[1];
102
103 sc->intr_establish = pckbc_sableio_intr_establish;
104
105 if (pckbc_is_console(sa->sa_iot, sa->sa_ioaddr)) {
106 t = &pckbc_consdata;
107 pckbc_console_attached = 1;
108 /* t->t_cmdbyte was initialized by cnattach */
109 } else {
110 if (bus_space_map(sa->sa_iot, sa->sa_ioaddr + KBDATAP,
111 1, 0, &ioh_d) != 0 ||
112 bus_space_map(sa->sa_iot, sa->sa_ioaddr + KBCMDP,
113 1, 0, &ioh_c) != 0)
114 panic("pckbc_sableio_attach: couldn't map");
115
116 t = kmem_zalloc(sizeof(struct pckbc_internal), KM_SLEEP);
117 t->t_iot = sa->sa_iot;
118 t->t_ioh_d = ioh_d;
119 t->t_ioh_c = ioh_c;
120 t->t_addr = sa->sa_ioaddr;
121 t->t_cmdbyte = KC8_CPU; /* Enable ports */
122 }
123
124 t->t_sc = sc;
125 sc->id = t;
126
127 aprint_normal("\n");
128
129 /* Finish off the attach. */
130 pckbc_attach(sc);
131 }
132
133 static void
pckbc_sableio_intr_establish(struct pckbc_softc * sc,pckbc_slot_t slot)134 pckbc_sableio_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot)
135 {
136 struct pckbc_sableio_softc *ssc = (void *) sc;
137 const char *intrstr;
138 char buf[PCI_INTRSTR_LEN];
139 pci_intr_handle_t ih;
140
141 alpha_pci_intr_handle_init(&ih, ssc->sc_irq[slot], 0);
142
143 intrstr = pci_intr_string(ssc->sc_pc, ih, buf,
144 sizeof(buf));
145 ssc->sc_ih[slot] = pci_intr_establish(ssc->sc_pc, ih,
146 IPL_TTY, pckbcintr, sc);
147 if (ssc->sc_ih[slot] == NULL) {
148 aprint_error_dev(sc->sc_dv,
149 "unable to establish interrupt for %s slot",
150 pckbc_slot_names[slot]);
151 if (intrstr != NULL)
152 aprint_error(" at %s", intrstr);
153 aprint_error("\n");
154 return;
155 }
156 aprint_normal_dev(sc->sc_dv, "%s slot interrupting at %s\n",
157 pckbc_slot_names[slot], intrstr);
158 }
159