1/*	$NetBSD: com_mv.c,v 1.4 2010/09/04 05:01:20 kiyohara Exp $	*/
2/*
3 * Copyright (c) 2007, 2010 KIYOHARA Takashi
4 * 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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD: com_mv.c,v 1.4 2010/09/04 05:01:20 kiyohara Exp $");
30
31#include "opt_com.h"
32
33#include <sys/param.h>
34#include <sys/bus.h>
35#include <sys/device.h>
36#include <sys/errno.h>
37#include <sys/termios.h>
38
39#include <dev/marvell/gtvar.h>
40#include <dev/marvell/marvellreg.h>
41#include <dev/marvell/marvellvar.h>
42
43#include <dev/ic/comvar.h>
44
45#include <prop/proplib.h>
46
47#define MVUART_SIZE		0x20
48
49
50static int mvuart_match(device_t, struct cfdata *, void *);
51static void mvuart_attach(device_t, device_t, void *);
52
53CFATTACH_DECL_NEW(mvuart_gt, sizeof(struct com_softc),
54    mvuart_match, mvuart_attach, NULL, NULL);
55CFATTACH_DECL_NEW(mvuart_mbus, sizeof(struct com_softc),
56    mvuart_match, mvuart_attach, NULL, NULL);
57
58#ifdef COM_REGMAP
59#define MVUART_INIT_REGS(regs, tag, hdl, addr, size)		\
60	do {							\
61		int i;						\
62								\
63		regs.cr_iot = tag;				\
64		regs.cr_ioh = hdl;				\
65		regs.cr_iobase = addr;				\
66		regs.cr_nports = size;				\
67		for (i = 0; i < __arraycount(regs.cr_map); i++)	\
68			regs.cr_map[i] = com_std_map[i] << 2;	\
69	} while (0)
70#else
71#define MVUART_INIT_REGS(regs, tag, hdl, addr, size) \
72	COM_INIT_REGS(regs, tag, hdl, addr)
73#endif
74
75
76/* ARGSUSED */
77static int
78mvuart_match(device_t parent, struct cfdata *match, void *aux)
79{
80	struct marvell_attach_args *mva = aux;
81	struct com_regs regs;
82	bus_space_handle_t ioh;
83
84	if (strcmp(mva->mva_name, match->cf_name) != 0)
85		return 0;
86	if (mva->mva_offset == MVA_OFFSET_DEFAULT ||
87	    mva->mva_irq == MVA_IRQ_DEFAULT)
88		return 0;
89
90	if (com_is_console(mva->mva_iot, mva->mva_addr + mva->mva_offset, NULL))
91		goto console;
92
93	if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, mva->mva_offset,
94	    MVUART_SIZE, &ioh))
95		return 0;
96	MVUART_INIT_REGS(regs, mva->mva_iot, ioh, mva->mva_offset, MVUART_SIZE);
97	if (!com_probe_subr(&regs))
98		return 0;
99
100console:
101	mva->mva_size = MVUART_SIZE;
102	return 1;
103}
104
105/* ARGSUSED */
106static void
107mvuart_attach(device_t parent, device_t self, void *aux)
108{
109	struct com_softc *sc = device_private(self);
110	struct marvell_attach_args *mva = aux;
111	bus_space_tag_t iot;
112	bus_space_handle_t ioh;
113	prop_dictionary_t dict = device_properties(self);
114
115	sc->sc_dev = self;
116
117	if (!prop_dictionary_get_uint32(dict, "frequency", &sc->sc_frequency)) {
118		aprint_error(": no frequency property\n");
119		return;
120	}
121
122	iot = mva->mva_iot;
123	if (!com_is_console(iot, mva->mva_addr + mva->mva_offset, &ioh)) {
124		if (bus_space_subregion(iot, mva->mva_ioh, mva->mva_offset,
125		    mva->mva_size, &ioh)) {
126			aprint_error(": can't map registers\n");
127			return;
128		}
129	}
130	MVUART_INIT_REGS(sc->sc_regs,
131	    iot, ioh, mva->mva_addr + mva->mva_offset, mva->mva_size);
132
133	com_attach_subr(sc);
134
135	marvell_intr_establish(mva->mva_irq, IPL_SERIAL, comintr, sc);
136}
137
138#ifdef COM_REGMAP
139int mvuart_cnattach(bus_space_tag_t, bus_addr_t, int, uint32_t, int);
140
141int
142mvuart_cnattach(bus_space_tag_t iot, bus_addr_t addr, int baud,
143		uint32_t sysfreq, int mode)
144{
145	struct com_regs regs;
146
147	MVUART_INIT_REGS(regs, iot, 0x0, addr, MVUART_SIZE);
148
149	return comcnattach1(&regs, baud, sysfreq, COM_TYPE_16550_NOERS, mode);
150}
151#endif /* COM_REGMAP */
152