1*ce099b40Smartin /* $NetBSD: zs_any.c,v 1.18 2008/04/28 20:23:37 martin Exp $ */
2ec984a04Sfredette
3ec984a04Sfredette /*-
4ec984a04Sfredette * Copyright (c) 1996 The NetBSD Foundation, Inc.
5ec984a04Sfredette * All rights reserved.
6ec984a04Sfredette *
7ec984a04Sfredette * This code is derived from software contributed to The NetBSD Foundation
8ec984a04Sfredette * by Gordon W. Ross and Matthew Fredette.
9ec984a04Sfredette *
10ec984a04Sfredette * Redistribution and use in source and binary forms, with or without
11ec984a04Sfredette * modification, are permitted provided that the following conditions
12ec984a04Sfredette * are met:
13ec984a04Sfredette * 1. Redistributions of source code must retain the above copyright
14ec984a04Sfredette * notice, this list of conditions and the following disclaimer.
15ec984a04Sfredette * 2. Redistributions in binary form must reproduce the above copyright
16ec984a04Sfredette * notice, this list of conditions and the following disclaimer in the
17ec984a04Sfredette * documentation and/or other materials provided with the distribution.
18ec984a04Sfredette *
19ec984a04Sfredette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20ec984a04Sfredette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21ec984a04Sfredette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22ec984a04Sfredette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23ec984a04Sfredette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24ec984a04Sfredette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25ec984a04Sfredette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26ec984a04Sfredette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27ec984a04Sfredette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28ec984a04Sfredette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29ec984a04Sfredette * POSSIBILITY OF SUCH DAMAGE.
30ec984a04Sfredette */
31ec984a04Sfredette
32ec984a04Sfredette /*
33ec984a04Sfredette * Zilog Z8530 Dual UART driver (machine-dependent part)
34ec984a04Sfredette *
35ec984a04Sfredette * Runs two serial lines per chip using slave drivers.
36ec984a04Sfredette * Plain tty/async lines use the zs_async slave.
37ec984a04Sfredette * Sun keyboard/mouse uses the zs_kbd/zs_ms slaves.
38ec984a04Sfredette */
39ec984a04Sfredette
40ed517291Slukem #include <sys/cdefs.h>
41*ce099b40Smartin __KERNEL_RCSID(0, "$NetBSD: zs_any.c,v 1.18 2008/04/28 20:23:37 martin Exp $");
42ed517291Slukem
43d84d2c6cSlukem #include "opt_kgdb.h"
44d84d2c6cSlukem
45ec984a04Sfredette #include <sys/param.h>
46ec984a04Sfredette #include <sys/systm.h>
47ec984a04Sfredette #include <sys/conf.h>
48ec984a04Sfredette #include <sys/device.h>
49ec984a04Sfredette #include <sys/file.h>
50ec984a04Sfredette #include <sys/ioctl.h>
51ec984a04Sfredette #include <sys/kernel.h>
52ec984a04Sfredette #include <sys/proc.h>
53ec984a04Sfredette #include <sys/tty.h>
54ec984a04Sfredette #include <sys/time.h>
55ec984a04Sfredette #include <sys/syslog.h>
56ec984a04Sfredette
57ec984a04Sfredette #include <machine/autoconf.h>
58ec984a04Sfredette #include <machine/bus.h>
59ec984a04Sfredette #include <machine/z8530var.h>
60ec984a04Sfredette
61ec984a04Sfredette #ifdef KGDB
62ec984a04Sfredette #include <uvm/uvm_extern.h>
63ec984a04Sfredette
64ec984a04Sfredette #include <machine/idprom.h>
65ec984a04Sfredette #include <machine/pmap.h>
66ee28fd70Sfredette #include <sun2/dev/cons.h>
67ec984a04Sfredette #endif
68ec984a04Sfredette
69ec984a04Sfredette #include <sun2/sun2/machdep.h>
70ec984a04Sfredette #include <dev/ic/z8530reg.h>
71877ea058Sfredette #include <dev/sun/kbd_reg.h>
72ec984a04Sfredette
73ec984a04Sfredette /****************************************************************
74ec984a04Sfredette * Autoconfig
75ec984a04Sfredette ****************************************************************/
76ec984a04Sfredette
77ec984a04Sfredette /* Definition of the driver for autoconfig. */
7802cb47caStsutsui static int zs_any_match(device_t, cfdata_t, void *);
7902cb47caStsutsui static void zs_any_attach(device_t, device_t, void *);
80ec984a04Sfredette
8102cb47caStsutsui CFATTACH_DECL_NEW(zs_obio, sizeof(struct zsc_softc),
824bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL);
83ec984a04Sfredette
8402cb47caStsutsui CFATTACH_DECL_NEW(zs_obmem, sizeof(struct zsc_softc),
854bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL);
86ec984a04Sfredette
8702cb47caStsutsui CFATTACH_DECL_NEW(zs_mbmem, sizeof(struct zsc_softc),
884bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL);
89ec984a04Sfredette
90ec984a04Sfredette /*
91ec984a04Sfredette * Is the zs chip present?
92ec984a04Sfredette */
93ec984a04Sfredette static int
zs_any_match(device_t parent,cfdata_t cf,void * aux)9402cb47caStsutsui zs_any_match(device_t parent, cfdata_t cf, void *aux)
95ec984a04Sfredette {
96451ebb23Sfredette struct mainbus_attach_args *ma = aux;
9770ba9292Sfredette bus_space_handle_t bh;
9870ba9292Sfredette int matched;
99ec984a04Sfredette
100ec984a04Sfredette /* Make sure there is something there... */
101451ebb23Sfredette if (bus_space_map(ma->ma_bustag, ma->ma_paddr, sizeof(struct zsdevice),
10270ba9292Sfredette 0, &bh))
10370ba9292Sfredette return (0);
104451ebb23Sfredette matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0);
105451ebb23Sfredette bus_space_unmap(ma->ma_bustag, bh, sizeof(struct zsdevice));
10670ba9292Sfredette if (!matched)
107ec984a04Sfredette return (0);
108ec984a04Sfredette
109ec984a04Sfredette /* Default interrupt priority (always splbio==2) */
110451ebb23Sfredette if (ma->ma_pri == -1)
111451ebb23Sfredette ma->ma_pri = ZSHARD_PRI;
112ec984a04Sfredette
113ec984a04Sfredette return (1);
114ec984a04Sfredette }
115ec984a04Sfredette
116ec984a04Sfredette /*
117ec984a04Sfredette * Attach a found zs.
118ec984a04Sfredette */
119ec984a04Sfredette static void
zs_any_attach(device_t parent,device_t self,void * aux)12002cb47caStsutsui zs_any_attach(device_t parent, device_t self, void *aux)
121ec984a04Sfredette {
12202cb47caStsutsui struct zsc_softc *zsc = device_private(self);
123451ebb23Sfredette struct mainbus_attach_args *ma = aux;
124ec984a04Sfredette bus_space_handle_t bh;
125ec984a04Sfredette
12602cb47caStsutsui zsc->zsc_dev = self;
127451ebb23Sfredette zsc->zsc_bustag = ma->ma_bustag;
128451ebb23Sfredette zsc->zsc_dmatag = ma->ma_dmatag;
12939cd836eSthorpej /* XXX device_unit() abuse */
13039cd836eSthorpej zsc->zsc_promunit = device_unit(self);
131ec984a04Sfredette zsc->zsc_node = 0;
132ec984a04Sfredette
133ec984a04Sfredette /* Map in the device. */
134451ebb23Sfredette if (bus_space_map(ma->ma_bustag, ma->ma_paddr, sizeof(struct zsdevice),
13502cb47caStsutsui BUS_SPACE_MAP_LINEAR, &bh)) {
13602cb47caStsutsui aprint_normal("\n");
13702cb47caStsutsui panic("%s: can't map", __func__);
13802cb47caStsutsui }
139ec984a04Sfredette
140ec984a04Sfredette /* This is where we break the bus_space(9) abstraction: */
141451ebb23Sfredette zs_attach(zsc, (void *)bh, ma->ma_pri);
142451ebb23Sfredette }
143451ebb23Sfredette
144451ebb23Sfredette int
zs_console_flags(int promunit,int node,int channel)14510b1a7beSchs zs_console_flags(int promunit, int node, int channel)
146451ebb23Sfredette {
147451ebb23Sfredette int cookie, flags = 0;
148451ebb23Sfredette
149451ebb23Sfredette /*
150451ebb23Sfredette * Use `promunit' and `channel' to derive the PROM
151451ebb23Sfredette * stdio handles that correspond to this device.
152451ebb23Sfredette */
153451ebb23Sfredette if (promunit == 0)
154451ebb23Sfredette cookie = PROMDEV_TTYA + channel;
155451ebb23Sfredette else if (promunit == 1 && channel == 0)
156451ebb23Sfredette cookie = PROMDEV_KBD;
157451ebb23Sfredette else
158451ebb23Sfredette cookie = -1;
159451ebb23Sfredette
160877ea058Sfredette /*
161877ea058Sfredette * We have the console keyboard only if it's a Sun-2
162877ea058Sfredette * keyboard or better. (i.e., not a Sun-1 parallel kbd).
163877ea058Sfredette */
164877ea058Sfredette if (cookie == prom_stdin() &&
165877ea058Sfredette (cookie != PROMDEV_KBD || prom_kbdid() >= KB_SUN2))
166451ebb23Sfredette flags |= ZS_HWFLAG_CONSOLE_INPUT;
167451ebb23Sfredette
168451ebb23Sfredette /*
169451ebb23Sfredette * Prevent the keyboard from matching the output device
170451ebb23Sfredette * (note that PROMDEV_KBD == PROMDEV_SCREEN == 0!).
171451ebb23Sfredette */
172451ebb23Sfredette if (cookie != PROMDEV_KBD && cookie == prom_stdout())
173451ebb23Sfredette flags |= ZS_HWFLAG_CONSOLE_OUTPUT;
174451ebb23Sfredette
175451ebb23Sfredette return (flags);
176ec984a04Sfredette }
177ec984a04Sfredette
178ec984a04Sfredette #ifdef KGDB
179ec984a04Sfredette /*
180ec984a04Sfredette * Find a zs mapped by the PROM. Currently this only works to find
181ec984a04Sfredette * zs0 on obio.
182ec984a04Sfredette */
183ec984a04Sfredette void *
zs_find_prom(int unit)18410b1a7beSchs zs_find_prom(int unit)
185ec984a04Sfredette {
186ec984a04Sfredette bus_addr_t zs0_phys;
187c207dcd8Stsutsui vaddr_t va;
188ec984a04Sfredette
189ec984a04Sfredette if (unit != 0)
190ec984a04Sfredette return (NULL);
191ec984a04Sfredette
192ec984a04Sfredette /*
193ec984a04Sfredette * The physical address of zs0 is model-dependent.
194ec984a04Sfredette */
19515adcb96Sthorpej zs0_phys = (cpu_machine_id == ID_SUN2_120 ? 0x002000 : 0x7f2000);
196c207dcd8Stsutsui if (find_prom_map(zs0_phys, PMAP_OBIO, sizeof(struct zsdevice), &va))
197ec984a04Sfredette return (NULL);
198ec984a04Sfredette
199c207dcd8Stsutsui return (void *)va;
200ec984a04Sfredette }
201ec984a04Sfredette #endif /* KGDB */
202