1 /* $NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $ */
2
3 /*
4 * Copyright (c) 2018 Jonathan A. Kollasch
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: amdccp_acpi.c,v 1.6 2022/12/18 15:50:32 reinoud Exp $");
31
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/cpu.h>
35 #include <sys/device.h>
36
37 #include <dev/acpi/acpireg.h>
38 #include <dev/acpi/acpivar.h>
39 #include <dev/acpi/acpi_intr.h>
40
41 #include <dev/ic/amdccpvar.h>
42
43 static int amdccp_acpi_match(device_t, cfdata_t, void *);
44 static void amdccp_acpi_attach(device_t, device_t, void *);
45
46 CFATTACH_DECL_NEW(amdccp_acpi, sizeof(struct amdccp_softc),
47 amdccp_acpi_match, amdccp_acpi_attach, NULL, NULL);
48
49 static const struct device_compatible_entry compat_data[] = {
50 { .compat = "AMDI0C00" },
51 DEVICE_COMPAT_EOL
52 };
53
54 static int
amdccp_acpi_match(device_t parent,cfdata_t cf,void * aux)55 amdccp_acpi_match(device_t parent, cfdata_t cf, void *aux)
56 {
57 struct acpi_attach_args *aa = aux;
58
59 return acpi_compatible_match(aa, compat_data);
60 }
61
62 static void
amdccp_acpi_attach(device_t parent,device_t self,void * aux)63 amdccp_acpi_attach(device_t parent, device_t self, void *aux)
64 {
65 struct amdccp_softc * const sc = device_private(self);
66 struct acpi_attach_args *aa = aux;
67 struct acpi_resources res;
68 struct acpi_mem *mem;
69 ACPI_STATUS rv;
70 #if notyet
71 void *ih;
72 #endif
73
74 sc->sc_dev = self;
75
76 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
77 &res, &acpi_resource_parse_ops_default);
78 if (ACPI_FAILURE(rv))
79 return;
80
81 mem = acpi_res_mem(&res, 0);
82 if (mem == NULL) {
83 aprint_error_dev(self, "couldn't find mem resource\n");
84 goto done;
85 }
86
87 sc->sc_bst = aa->aa_memt;
88 if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0,
89 &sc->sc_bsh) != 0) {
90 aprint_error_dev(self, "couldn't map registers\n");
91 goto done;
92 }
93
94 #if notyet
95 ih = acpi_intr_establish(self,
96 (uint64_t)(uintptr_t)aa->aa_node->ad_handle,
97 IPL_VM, true, amdccp_intr, sc, device_xname(self));
98 if (ih == NULL) {
99 aprint_error_dev(self, "couldn't install interrupt handler\n");
100 return;
101 }
102
103 #endif
104
105 amdccp_common_attach(sc);
106 pmf_device_register(self, NULL, NULL);
107
108 done:
109 acpi_resource_cleanup(&res);
110 }
111