/[gxemul]/upstream/0.3.1/devices/pci_vt82c586.c
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Contents of /upstream/0.3.1/devices/pci_vt82c586.c

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Revision 3 - (show annotations)
Mon Oct 8 16:17:52 2007 UTC (16 years, 7 months ago) by dpavlin
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0.3.1
1 /*
2 * Copyright (C) 2004 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: pci_vt82c586.c,v 1.12 2005/02/26 18:00:38 debug Exp $
29 *
30 * VIATECH VT82C586 devices:
31 *
32 * vt82c586_isa PCI->ISA bridge
33 * vt82c586_ide IDE controller
34 *
35 * TODO: This more or less just a dummy device, so far.
36 */
37
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41
42 #include "memory.h"
43 #include "misc.h"
44 #include "devices.h"
45 #include "bus_pci.h"
46
47
48 #define PCI_VENDOR_VIATECH 0x1106 /* VIA Technologies */
49 #define PCI_PRODUCT_VIATECH_VT82C586_IDE 0x1571 /* VT82C586 (Apollo VP)
50 IDE Controller */
51 #define PCI_PRODUCT_VIATECH_VT82C586_ISA 0x0586 /* VT82C586 (Apollo VP)
52 PCI-ISA Bridge */
53
54
55 /*
56 * pci_vt82c586_isa_rr():
57 */
58 uint32_t pci_vt82c586_isa_rr(int reg)
59 {
60 /* NetBSD reads from 0x04, 0x08, 0x3c, 0x0c, 0x2c during init */
61
62 switch (reg) {
63 case 0x00:
64 return PCI_VENDOR_VIATECH +
65 (PCI_PRODUCT_VIATECH_VT82C586_ISA << 16);
66 case 0x04:
67 return 0xffffffff; /* ??? */
68 case 0x08:
69 /* Revision 37 or 39 */
70 return PCI_CLASS_CODE(PCI_CLASS_BRIDGE,
71 PCI_SUBCLASS_BRIDGE_ISA, 0) + 39;
72 case 0x0c:
73 /* Bit 7 of Header-type byte ==> multi-function device */
74 return 0x00800000;
75 default:
76 return 0;
77 }
78 }
79
80
81 /*
82 * pci_vt82c586_isa_init():
83 */
84 void pci_vt82c586_isa_init(struct machine *machine, struct memory *mem)
85 {
86 }
87
88
89 /*
90 * pci_vt82c586_ide_rr():
91 */
92 uint32_t pci_vt82c586_ide_rr(int reg)
93 {
94 /* NetBSD reads from 0x04, 0x08, 0x3c, 0x0c, 0x2c during init */
95
96 switch (reg) {
97 case 0x00:
98 return PCI_VENDOR_VIATECH +
99 (PCI_PRODUCT_VIATECH_VT82C586_IDE << 16);
100 case 0x04:
101 return 0xffffffff; /* ??? */
102 case 0x08:
103 /* Possibly not correct: */
104 return PCI_CLASS_CODE(PCI_CLASS_MASS_STORAGE,
105 PCI_SUBCLASS_MASS_STORAGE_IDE, 0) + 0x01;
106 case 0x40: /* APO_IDECONF */
107 /* channel 0 and 1 enabled */
108 return 0x00000003;
109 default:
110 return 0;
111 }
112 }
113
114
115 /*
116 * pci_vt82c586_ide_init():
117 */
118 void pci_vt82c586_ide_init(struct machine *machine, struct memory *mem)
119 {
120 /*
121 * TODO: what about these base addresses and interrupt
122 * numbers? They work for Cobalt... 7 = PCI interrupt?? (TODO)
123 */
124 dev_wdc_init(machine, mem, 0x100001f0, 6, 0); /* primary */
125 dev_wdc_init(machine, mem, 0x10000170, 6, 2); /* secondary */
126 }
127

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