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: Ali Saidi
29 * Andrew Schultz
30 * Miguel Serrano
31 */
32
33/** @file
34 * Tsunami I/O Space mapping including RTC/timer interrupts
35 */
36
37#ifndef __DEV_TSUNAMI_IO_HH__
38#define __DEV_TSUNAMI_IO_HH__
39
40#include "dev/alpha/tsunami.hh"
41#include "dev/alpha/tsunami_cchip.hh"
42#include "dev/intel_8254_timer.hh"
43#include "dev/io_device.hh"
44#include "dev/mc146818.hh"
45#include "params/TsunamiIO.hh"
46#include "sim/eventq.hh"
47
48/**
49 * Tsunami I/O device is a catch all for all the south bridge stuff we care
50 * to implement.
51 */
52class TsunamiIO : public BasicPioDevice
53{
54
55 protected:
56
57 class RTC : public MC146818
58 {
59 public:
60 Tsunami *tsunami;
61 RTC(const std::string &n, const TsunamiIOParams *p);
62
63 protected:
64 void handleEvent()
65 {
66 //Actually interrupt the processor here
67 tsunami->cchip->postRTC();
68 }
69 };
70
71 /** Mask of the PIC1 */
72 uint8_t mask1;
73
74 /** Mask of the PIC2 */
75 uint8_t mask2;
76
77 /** Mode of PIC1. Not used for anything */
78 uint8_t mode1;
79
80 /** Mode of PIC2. Not used for anything */
81 uint8_t mode2;
82
83 /** Raw PIC interrupt register before masking */
84 uint8_t picr; //Raw PIC interrput register
85
86 /** Is the pic interrupting right now or not. */
87 bool picInterrupting;
88
89 /** A pointer to the Tsunami device which be belong to */
90 Tsunami *tsunami;
91
92 /** Intel 8253 Periodic Interval Timer */
93 Intel8254Timer pitimer;
94
95 RTC rtc;
96
97 uint8_t rtcAddr;
98
99 /** The interval is set via two writes to the PIT.
100 * This variable contains a flag as to how many writes have happened, and
101 * the time so far.
102 */
103 uint16_t timerData;
104
105 public:
106 /**
107 * Return the freqency of the RTC
108 * @return interrupt rate of the RTC
109 */
110 Tick frequency() const;
111
112 public:
113 typedef TsunamiIOParams Params;
114 /**
115 * Initialize all the data for devices supported by Tsunami I/O.
116 * @param p pointer to Params struct
117 */
118 TsunamiIO(const Params *p);
119
120 const Params *
121 params() const
122 {
123 return dynamic_cast<const Params *>(_params);
124 }
125
| 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: Ali Saidi
29 * Andrew Schultz
30 * Miguel Serrano
31 */
32
33/** @file
34 * Tsunami I/O Space mapping including RTC/timer interrupts
35 */
36
37#ifndef __DEV_TSUNAMI_IO_HH__
38#define __DEV_TSUNAMI_IO_HH__
39
40#include "dev/alpha/tsunami.hh"
41#include "dev/alpha/tsunami_cchip.hh"
42#include "dev/intel_8254_timer.hh"
43#include "dev/io_device.hh"
44#include "dev/mc146818.hh"
45#include "params/TsunamiIO.hh"
46#include "sim/eventq.hh"
47
48/**
49 * Tsunami I/O device is a catch all for all the south bridge stuff we care
50 * to implement.
51 */
52class TsunamiIO : public BasicPioDevice
53{
54
55 protected:
56
57 class RTC : public MC146818
58 {
59 public:
60 Tsunami *tsunami;
61 RTC(const std::string &n, const TsunamiIOParams *p);
62
63 protected:
64 void handleEvent()
65 {
66 //Actually interrupt the processor here
67 tsunami->cchip->postRTC();
68 }
69 };
70
71 /** Mask of the PIC1 */
72 uint8_t mask1;
73
74 /** Mask of the PIC2 */
75 uint8_t mask2;
76
77 /** Mode of PIC1. Not used for anything */
78 uint8_t mode1;
79
80 /** Mode of PIC2. Not used for anything */
81 uint8_t mode2;
82
83 /** Raw PIC interrupt register before masking */
84 uint8_t picr; //Raw PIC interrput register
85
86 /** Is the pic interrupting right now or not. */
87 bool picInterrupting;
88
89 /** A pointer to the Tsunami device which be belong to */
90 Tsunami *tsunami;
91
92 /** Intel 8253 Periodic Interval Timer */
93 Intel8254Timer pitimer;
94
95 RTC rtc;
96
97 uint8_t rtcAddr;
98
99 /** The interval is set via two writes to the PIT.
100 * This variable contains a flag as to how many writes have happened, and
101 * the time so far.
102 */
103 uint16_t timerData;
104
105 public:
106 /**
107 * Return the freqency of the RTC
108 * @return interrupt rate of the RTC
109 */
110 Tick frequency() const;
111
112 public:
113 typedef TsunamiIOParams Params;
114 /**
115 * Initialize all the data for devices supported by Tsunami I/O.
116 * @param p pointer to Params struct
117 */
118 TsunamiIO(const Params *p);
119
120 const Params *
121 params() const
122 {
123 return dynamic_cast<const Params *>(_params);
124 }
125
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