1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * 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 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include "debug/CMOS.hh"
32#include "dev/x86/cmos.hh"
33#include "dev/x86/intdev.hh"
34#include "mem/packet_access.hh"
35
36void
37X86ISA::Cmos::X86RTC::handleEvent()
38{
39 assert(intPin);
40 intPin->raise();
41 //XXX This is a hack.
42 intPin->lower();
43}
44
45Tick
46X86ISA::Cmos::read(PacketPtr pkt)
47{
48 assert(pkt->getSize() == 1);
49 switch(pkt->getAddr() - pioAddr)
50 {
51 case 0x0:
52 pkt->set(address);
53 break;
54 case 0x1:
55 pkt->set(readRegister(address));
56 break;
57 default:
58 panic("Read from undefined CMOS port.\n");
59 }
60 pkt->makeAtomicResponse();
61 return latency;
62}
63
64Tick
65X86ISA::Cmos::write(PacketPtr pkt)
66{
67 assert(pkt->getSize() == 1);
68 switch(pkt->getAddr() - pioAddr)
69 {
70 case 0x0:
71 address = pkt->get<uint8_t>();
72 break;
73 case 0x1:
74 writeRegister(address, pkt->get<uint8_t>());
75 break;
76 default:
77 panic("Write to undefined CMOS port.\n");
78 }
79 pkt->makeAtomicResponse();
80 return latency;
81}
82
83uint8_t
84X86ISA::Cmos::readRegister(uint8_t reg)
85{
86 assert(reg < numRegs);
87 uint8_t val;
88 if (reg <= 0xD) {
89 val = rtc.readData(reg);
90 DPRINTF(CMOS,
91 "Reading CMOS RTC reg %x as %x.\n", reg, val);
92 } else {
93 val = regs[reg];
94 DPRINTF(CMOS,
95 "Reading non-volitile CMOS address %x as %x.\n", reg, val);
96 }
97 return val;
98}
99
100void
101X86ISA::Cmos::writeRegister(uint8_t reg, uint8_t val)
102{
103 assert(reg < numRegs);
104 if (reg <= 0xD) {
105 DPRINTF(CMOS, "Writing CMOS RTC reg %x with %x.\n",
106 reg, val);
107 rtc.writeData(reg, val);
108 } else {
109 DPRINTF(CMOS, "Writing non-volitile CMOS address %x with %x.\n",
110 reg, val);
111 regs[reg] = val;
112 }
113}
114
115void
116X86ISA::Cmos::startup()
117{
118 rtc.startup();
119}
120
121void
| 1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * 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 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Gabe Black
29 */
30
31#include "debug/CMOS.hh"
32#include "dev/x86/cmos.hh"
33#include "dev/x86/intdev.hh"
34#include "mem/packet_access.hh"
35
36void
37X86ISA::Cmos::X86RTC::handleEvent()
38{
39 assert(intPin);
40 intPin->raise();
41 //XXX This is a hack.
42 intPin->lower();
43}
44
45Tick
46X86ISA::Cmos::read(PacketPtr pkt)
47{
48 assert(pkt->getSize() == 1);
49 switch(pkt->getAddr() - pioAddr)
50 {
51 case 0x0:
52 pkt->set(address);
53 break;
54 case 0x1:
55 pkt->set(readRegister(address));
56 break;
57 default:
58 panic("Read from undefined CMOS port.\n");
59 }
60 pkt->makeAtomicResponse();
61 return latency;
62}
63
64Tick
65X86ISA::Cmos::write(PacketPtr pkt)
66{
67 assert(pkt->getSize() == 1);
68 switch(pkt->getAddr() - pioAddr)
69 {
70 case 0x0:
71 address = pkt->get<uint8_t>();
72 break;
73 case 0x1:
74 writeRegister(address, pkt->get<uint8_t>());
75 break;
76 default:
77 panic("Write to undefined CMOS port.\n");
78 }
79 pkt->makeAtomicResponse();
80 return latency;
81}
82
83uint8_t
84X86ISA::Cmos::readRegister(uint8_t reg)
85{
86 assert(reg < numRegs);
87 uint8_t val;
88 if (reg <= 0xD) {
89 val = rtc.readData(reg);
90 DPRINTF(CMOS,
91 "Reading CMOS RTC reg %x as %x.\n", reg, val);
92 } else {
93 val = regs[reg];
94 DPRINTF(CMOS,
95 "Reading non-volitile CMOS address %x as %x.\n", reg, val);
96 }
97 return val;
98}
99
100void
101X86ISA::Cmos::writeRegister(uint8_t reg, uint8_t val)
102{
103 assert(reg < numRegs);
104 if (reg <= 0xD) {
105 DPRINTF(CMOS, "Writing CMOS RTC reg %x with %x.\n",
106 reg, val);
107 rtc.writeData(reg, val);
108 } else {
109 DPRINTF(CMOS, "Writing non-volitile CMOS address %x with %x.\n",
110 reg, val);
111 regs[reg] = val;
112 }
113}
114
115void
116X86ISA::Cmos::startup()
117{
118 rtc.startup();
119}
120
121void
|