1/*	$NetBSD: hd64465.c,v 1.19 2021/08/07 16:18:55 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
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>
33__KERNEL_RCSID(0, "$NetBSD: hd64465.c,v 1.19 2021/08/07 16:18:55 thorpej Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/device.h>
38#include <sys/boot_flag.h>
39#include <sys/bus.h>
40
41#include <machine/intr.h>
42#include <machine/debug.h>
43
44#include <sh3/intcreg.h>
45#include <hpcsh/dev/hd64465/hd64465var.h>
46#include <hpcsh/dev/hd64465/hd64465reg.h>
47#include <hpcsh/dev/hd64465/hd64465intcreg.h>
48
49/* HD64465 modules. */
50STATIC const struct hd64465_module {
51	const char *name;
52} hd64465_modules[] = {
53	[HD64465_MODULE_PS2IF]		= { "hd64465ps2if" },
54	[HD64465_MODULE_PCMCIA]		= { "hd64465pcmcia" },
55	[HD64465_MODULE_AFE]		= { "hd64465afe" },
56	[HD64465_MODULE_GPIO]		= { "hd64465gpio" },
57	[HD64465_MODULE_KBC]		= { "hd64465kbc" },
58	[HD64465_MODULE_IRDA]		= { "hd64465irda" },
59	[HD64465_MODULE_UART]		= { "hd64465uart" },
60	[HD64465_MODULE_PARALEL]	= { "hd64465paralel" },
61	[HD64465_MODULE_CODEC]		= { "hd64465codec" },
62	[HD64465_MODULE_OHCI]		= { "hd64465ohci" },
63	[HD64465_MODULE_ADC]		= { "hd64465adc" }
64};
65
66STATIC int hd64465_match(device_t, cfdata_t, void *);
67STATIC void hd64465_attach(device_t, device_t, void *);
68STATIC int hd64465_print(void *, const char *);
69#ifdef DEBUG
70STATIC void hd64465_info(void);
71#endif
72
73CFATTACH_DECL_NEW(hd64465if, 0,
74    hd64465_match, hd64465_attach, NULL, NULL);
75
76int
77hd64465_match(device_t parent, cfdata_t cf, void *aux)
78{
79
80	if (strcmp("hd64465if", cf->cf_name))
81		return (0);
82
83	if (hd64465_reg_read_2(HD64465_SDIDR) != 0x8122) {
84		/* not HD64465 */
85		return (0);
86	}
87
88	return (1);
89}
90
91void
92hd64465_attach(device_t parent, device_t self, void *aux)
93{
94	const struct hd64465_module *module;
95	struct hd64465_attach_args ha;
96	uint16_t r;
97	size_t i;
98
99	printf("\n");
100#ifdef DEBUG
101	if (bootverbose)
102		hd64465_info();
103#endif
104
105	r = hd64465_reg_read_2(HD64465_SRR);
106	printf("%s: HITACHI HD64465 rev. %d.%d\n", device_xname(self),
107	    (r >> 8) & 0xff, r & 0xff);
108
109	/* Mask all interrupt */
110	hd64465_reg_write_2(HD64465_NIMR, 0xffff);
111	/* Edge trigger mode to clear pending interrupt. */
112	hd64465_reg_write_2(HD64465_NITR, 0xffff);
113	/* Clear pending interrupt */
114	hd64465_reg_write_2(HD64465_NIRR, 0x0000);
115
116	/* Attach all sub modules */
117	for (i = 0, module = hd64465_modules;
118	    i < __arraycount(hd64465_modules);
119	    i++, module++) {
120		if (module->name == 0)
121			continue;
122		ha.ha_module_id = i;
123		config_found(self, &ha, hd64465_print, CFARGS_NONE);
124	}
125}
126
127int
128hd64465_print(void *aux, const char *pnp)
129{
130	struct hd64465_attach_args *ha = aux;
131
132	if (pnp)
133		aprint_normal("%s at %s",
134		    hd64465_modules[ha->ha_module_id].name, pnp);
135
136	return (UNCONF);
137}
138
139void *
140hd64465_intr_establish(int irq, int mode, int level,
141    int (*func)(void *), void *arg)
142{
143	uint16_t r;
144	int s;
145
146	s = splhigh();
147	/* Trigger type */
148	r = hd64465_reg_read_2(HD64465_NITR);
149	switch (mode) {
150	case IST_PULSE:
151		/* FALLTHROUGH */
152	case IST_EDGE:
153		r |= irq;
154		break;
155	case IST_LEVEL:
156		r &= ~irq;
157		break;
158	}
159	hd64465_reg_write_2(HD64465_NITR, r);
160
161	hd6446x_intr_establish(irq, mode, level, func, arg);
162	splx(s);
163
164	return (void *)irq;
165}
166
167void
168hd64465_intr_disestablish(void *handle)
169{
170
171	hd6446x_intr_disestablish(handle);
172}
173
174/* For the sake of Windows CE reboot clearly. */
175void
176hd64465_shutdown(void)
177{
178
179	/* Enable all interrupt */
180	hd64465_reg_write_2(HD64465_NIMR, 0x0000);
181
182	/* Level trigger mode */
183	hd64465_reg_write_2(HD64465_NITR, 0x0000);
184}
185
186void
187hd64465_info(void)
188{
189	uint16_t r;
190
191	dbg_bit_print_msg(_reg_read_2(SH4_ICR), "SH4_ICR");
192	r = hd64465_reg_read_2(HD64465_NIMR);
193	dbg_bit_print_msg(r, "NIMR");
194	r = hd64465_reg_read_2(HD64465_NIRR);
195	dbg_bit_print_msg(r, "NIRR");
196	r = hd64465_reg_read_2(HD64465_NITR);
197	dbg_bit_print_msg(r, "NITR");
198}
199