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;

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96
97 DPRINTF(Tsunami, "io read va=%#x size=%d IOPorrt=%#x\n", pkt->getAddr(),
98 pkt->getSize(), daddr);
99
100 if (pkt->getSize() == sizeof(uint8_t)) {
101 switch(daddr) {
102 // PIC1 mask read
103 case TSDEV_PIC1_MASK:
104 pkt->setLE(~mask1);
105 break;
106 case TSDEV_PIC2_MASK:
107 pkt->setLE(~mask2);
108 break;
109 case TSDEV_PIC1_ISR:
110 // !!! If this is modified 64bit case needs to be too
111 // Pal code has to do a 64 bit physical read because there is
112 // no load physical byte instruction
113 pkt->setLE(picr);
114 break;
115 case TSDEV_PIC2_ISR:
116 // PIC2 not implemnted... just return 0
117 pkt->setLE(0x00);
118 break;
119 case TSDEV_TMR0_DATA:
120 pkt->setLE(pitimer.readCounter(0));
121 break;
122 case TSDEV_TMR1_DATA:
123 pkt->setLE(pitimer.readCounter(1));
124 break;
125 case TSDEV_TMR2_DATA:
126 pkt->setLE(pitimer.readCounter(2));
127 break;
128 case TSDEV_RTC_DATA:
129 pkt->setLE(rtc.readData(rtcAddr));
130 break;
131 case TSDEV_CTRL_PORTB:
132 if (pitimer.outputHigh(2))
133 pkt->setLE(PORTB_SPKR_HIGH);
134 else
135 pkt->setLE(0x00);
136 break;
137 default:
138 panic("I/O Read - va%#x size %d\n", pkt->getAddr(), pkt->getSize());
139 }
140 } else if (pkt->getSize() == sizeof(uint64_t)) {
141 if (daddr == TSDEV_PIC1_ISR)
142 pkt->setLE<uint64_t>(picr);
143 else
144 panic("I/O Read - invalid addr - va %#x size %d\n",
145 pkt->getAddr(), pkt->getSize());
146 } else {
147 panic("I/O Read - invalid size - va %#x size %d\n", pkt->getAddr(), pkt->getSize());
148 }
149 pkt->makeAtomicResponse();
150 return pioDelay;
151}
152
153Tick
154TsunamiIO::write(PacketPtr pkt)
155{
156 assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
157 Addr daddr = pkt->getAddr() - pioAddr;
158
159 DPRINTF(Tsunami, "io write - va=%#x size=%d IOPort=%#x Data=%#x\n",
160 pkt->getAddr(), pkt->getSize(), pkt->getAddr() & 0xfff,
161 (uint32_t)pkt->getLE<uint8_t>());
162
163 assert(pkt->getSize() == sizeof(uint8_t));
164
165 switch(daddr) {
166 case TSDEV_PIC1_MASK:
167 mask1 = ~(pkt->getLE<uint8_t>());
168 if ((picr & mask1) && !picInterrupting) {
169 picInterrupting = true;
170 tsunami->cchip->postDRIR(55);
171 DPRINTF(Tsunami, "posting pic interrupt to cchip\n");
172 }
173 if ((!(picr & mask1)) && picInterrupting) {
174 picInterrupting = false;
175 tsunami->cchip->clearDRIR(55);
176 DPRINTF(Tsunami, "clearing pic interrupt\n");
177 }
178 break;
179 case TSDEV_PIC2_MASK:
180 mask2 = pkt->getLE<uint8_t>();
181 //PIC2 Not implemented to interrupt
182 break;
183 case TSDEV_PIC1_ACK:
184 // clear the interrupt on the PIC
185 picr &= ~(1 << (pkt->getLE<uint8_t>() & 0xF));
186 if (!(picr & mask1))
187 tsunami->cchip->clearDRIR(55);
188 break;
189 case TSDEV_DMA1_MODE:
190 mode1 = pkt->getLE<uint8_t>();
191 break;
192 case TSDEV_DMA2_MODE:
193 mode2 = pkt->getLE<uint8_t>();
194 break;
195 case TSDEV_TMR0_DATA:
196 pitimer.writeCounter(0, pkt->getLE<uint8_t>());
197 break;
198 case TSDEV_TMR1_DATA:
199 pitimer.writeCounter(1, pkt->getLE<uint8_t>());
200 break;
201 case TSDEV_TMR2_DATA:
202 pitimer.writeCounter(2, pkt->getLE<uint8_t>());
203 break;
204 case TSDEV_TMR_CTRL:
205 pitimer.writeControl(pkt->getLE<uint8_t>());
206 break;
207 case TSDEV_RTC_ADDR:
208 rtcAddr = pkt->getLE<uint8_t>();
209 break;
210 case TSDEV_RTC_DATA:
211 rtc.writeData(rtcAddr, pkt->getLE<uint8_t>());
212 break;
213 case TSDEV_KBD:
214 case TSDEV_DMA1_CMND:
215 case TSDEV_DMA2_CMND:
216 case TSDEV_DMA1_MMASK:
217 case TSDEV_DMA2_MMASK:
218 case TSDEV_PIC2_ACK:
219 case TSDEV_DMA1_RESET:
220 case TSDEV_DMA2_RESET:
221 case TSDEV_DMA1_MASK:
222 case TSDEV_DMA2_MASK:
223 case TSDEV_CTRL_PORTB:
224 break;
225 default:
226 panic("I/O Write - va%#x size %d data %#x\n",
227 pkt->getAddr(), pkt->getSize(), pkt->getLE<uint8_t>());
228 }
229
230 pkt->makeAtomicResponse();
231 return pioDelay;
232}
233
234void
235TsunamiIO::postPIC(uint8_t bitvector)

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