1 /* $NetBSD: amdpcib.c,v 1.5 2021/08/07 16:19:07 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 2006 Nicolas Joly
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 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/cdefs.h>
32 __KERNEL_RCSID(0, "$NetBSD: amdpcib.c,v 1.5 2021/08/07 16:19:07 thorpej Exp $");
33
34 #include <sys/systm.h>
35 #include <sys/device.h>
36
37 #include <dev/pci/pcivar.h>
38 #include <dev/pci/pcireg.h>
39 #include <dev/pci/pcidevs.h>
40 #include "pcibvar.h"
41
42 struct amdpcib_softc {
43 /* we are calling pcibattach(), which assumes this starts like this: */
44 struct pcib_softc sc_pcib;
45 bus_space_tag_t sc_memt;
46 bus_space_handle_t sc_memh;
47 };
48
49 static int amdpcib_match(device_t, cfdata_t, void *);
50 static void amdpcib_attach(device_t, device_t, void *);
51 static int amdpcib_search(device_t, cfdata_t, const int *, void *);
52
53 CFATTACH_DECL_NEW(amdpcib, sizeof(struct amdpcib_softc), amdpcib_match,
54 amdpcib_attach, NULL, NULL);
55
56 static int
amdpcib_match(device_t parent,cfdata_t match,void * aux)57 amdpcib_match(device_t parent, cfdata_t match, void *aux)
58 {
59 struct pci_attach_args *pa = aux;
60
61 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_AMD) &&
62 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_AMD_PBC8111_LPC))
63 return 2;
64
65 return 0;
66 }
67
68 static void
amdpcib_attach(device_t parent,device_t self,void * aux)69 amdpcib_attach(device_t parent, device_t self, void *aux)
70 {
71 struct pci_attach_args *pa = aux;
72
73 pcibattach(parent, self, aux);
74
75 config_search(self, pa,
76 CFARGS(.search = amdpcib_search,
77 .iattr = "amdpcib"));
78 }
79
80 static int
amdpcib_search(device_t parent,cfdata_t cf,const int * locs,void * aux)81 amdpcib_search(device_t parent, cfdata_t cf, const int *locs, void *aux)
82 {
83
84 if (config_probe(parent, cf, aux))
85 config_attach(parent, cf, aux, NULL,
86 CFARGS(.locators = locs));
87
88 return 0;
89 }
90