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. */
50 STATIC 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
66 STATIC int hd64465_match(device_t, cfdata_t, void *);
67 STATIC void hd64465_attach(device_t, device_t, void *);
68 STATIC int hd64465_print(void *, const char *);
69 #ifdef DEBUG
70 STATIC void hd64465_info(void);
71 #endif
72
73 CFATTACH_DECL_NEW(hd64465if, 0,
74 hd64465_match, hd64465_attach, NULL, NULL);
75
76 int
hd64465_match(device_t parent,cfdata_t cf,void * aux)77 hd64465_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
91 void
hd64465_attach(device_t parent,device_t self,void * aux)92 hd64465_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
127 int
hd64465_print(void * aux,const char * pnp)128 hd64465_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
139 void *
hd64465_intr_establish(int irq,int mode,int level,int (* func)(void *),void * arg)140 hd64465_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
167 void
hd64465_intr_disestablish(void * handle)168 hd64465_intr_disestablish(void *handle)
169 {
170
171 hd6446x_intr_disestablish(handle);
172 }
173
174 /* For the sake of Windows CE reboot clearly. */
175 void
hd64465_shutdown(void)176 hd64465_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
186 void
hd64465_info(void)187 hd64465_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