root / hw / slavio_serial.c @ 192c7bd9
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1 | e80cfcfc | bellard | /*
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2 | e80cfcfc | bellard | * QEMU Sparc SLAVIO serial port emulation
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3 | e80cfcfc | bellard | *
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4 | 8be1f5c8 | bellard | * Copyright (c) 2003-2005 Fabrice Bellard
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5 | e80cfcfc | bellard | *
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6 | e80cfcfc | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | e80cfcfc | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | e80cfcfc | bellard | * in the Software without restriction, including without limitation the rights
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9 | e80cfcfc | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | e80cfcfc | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | e80cfcfc | bellard | * furnished to do so, subject to the following conditions:
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12 | e80cfcfc | bellard | *
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13 | e80cfcfc | bellard | * The above copyright notice and this permission notice shall be included in
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14 | e80cfcfc | bellard | * all copies or substantial portions of the Software.
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15 | e80cfcfc | bellard | *
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16 | e80cfcfc | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | e80cfcfc | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | e80cfcfc | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | e80cfcfc | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | e80cfcfc | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | e80cfcfc | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | e80cfcfc | bellard | * THE SOFTWARE.
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23 | e80cfcfc | bellard | */
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24 | e80cfcfc | bellard | #include "vl.h" |
25 | 8be1f5c8 | bellard | /* debug serial */
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26 | e80cfcfc | bellard | //#define DEBUG_SERIAL
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27 | e80cfcfc | bellard | |
28 | e80cfcfc | bellard | /* debug keyboard */
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29 | e80cfcfc | bellard | //#define DEBUG_KBD
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30 | e80cfcfc | bellard | |
31 | 8be1f5c8 | bellard | /* debug mouse */
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32 | e80cfcfc | bellard | //#define DEBUG_MOUSE
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33 | e80cfcfc | bellard | |
34 | e80cfcfc | bellard | /*
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35 | e80cfcfc | bellard | * This is the serial port, mouse and keyboard part of chip STP2001
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36 | e80cfcfc | bellard | * (Slave I/O), also produced as NCR89C105. See
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37 | e80cfcfc | bellard | * http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C105.txt
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38 | e80cfcfc | bellard | *
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39 | e80cfcfc | bellard | * The serial ports implement full AMD AM8530 or Zilog Z8530 chips,
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40 | e80cfcfc | bellard | * mouse and keyboard ports don't implement all functions and they are
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41 | e80cfcfc | bellard | * only asynchronous. There is no DMA.
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42 | e80cfcfc | bellard | *
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43 | e80cfcfc | bellard | */
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44 | e80cfcfc | bellard | |
45 | 8be1f5c8 | bellard | #ifdef DEBUG_SERIAL
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46 | 8be1f5c8 | bellard | #define SER_DPRINTF(fmt, args...) \
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47 | 8be1f5c8 | bellard | do { printf("SER: " fmt , ##args); } while (0) |
48 | 8be1f5c8 | bellard | #else
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49 | 8be1f5c8 | bellard | #define SER_DPRINTF(fmt, args...)
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50 | 8be1f5c8 | bellard | #endif
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51 | 8be1f5c8 | bellard | #ifdef DEBUG_KBD
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52 | 8be1f5c8 | bellard | #define KBD_DPRINTF(fmt, args...) \
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53 | 8be1f5c8 | bellard | do { printf("KBD: " fmt , ##args); } while (0) |
54 | 8be1f5c8 | bellard | #else
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55 | 8be1f5c8 | bellard | #define KBD_DPRINTF(fmt, args...)
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56 | 8be1f5c8 | bellard | #endif
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57 | 8be1f5c8 | bellard | #ifdef DEBUG_MOUSE
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58 | 8be1f5c8 | bellard | #define MS_DPRINTF(fmt, args...) \
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59 | 8be1f5c8 | bellard | do { printf("SER: " fmt , ##args); } while (0) |
60 | 8be1f5c8 | bellard | #else
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61 | 8be1f5c8 | bellard | #define MS_DPRINTF(fmt, args...)
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62 | 8be1f5c8 | bellard | #endif
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63 | 8be1f5c8 | bellard | |
64 | 8be1f5c8 | bellard | typedef enum { |
65 | 8be1f5c8 | bellard | chn_a, chn_b, |
66 | 8be1f5c8 | bellard | } chn_id_t; |
67 | 8be1f5c8 | bellard | |
68 | 8be1f5c8 | bellard | typedef enum { |
69 | 8be1f5c8 | bellard | ser, kbd, mouse, |
70 | 8be1f5c8 | bellard | } chn_type_t; |
71 | 8be1f5c8 | bellard | |
72 | 8be1f5c8 | bellard | #define KBD_QUEUE_SIZE 256 |
73 | 8be1f5c8 | bellard | |
74 | 8be1f5c8 | bellard | typedef struct { |
75 | 8be1f5c8 | bellard | uint8_t data[KBD_QUEUE_SIZE]; |
76 | 8be1f5c8 | bellard | int rptr, wptr, count;
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77 | 8be1f5c8 | bellard | } KBDQueue; |
78 | 8be1f5c8 | bellard | |
79 | e80cfcfc | bellard | typedef struct ChannelState { |
80 | e80cfcfc | bellard | int irq;
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81 | e80cfcfc | bellard | int reg;
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82 | e80cfcfc | bellard | int rxint, txint;
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83 | 8be1f5c8 | bellard | chn_id_t chn; // this channel, A (base+4) or B (base+0)
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84 | 8be1f5c8 | bellard | chn_type_t type; |
85 | 8be1f5c8 | bellard | struct ChannelState *otherchn;
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86 | e80cfcfc | bellard | uint8_t rx, tx, wregs[16], rregs[16]; |
87 | 8be1f5c8 | bellard | KBDQueue queue; |
88 | e80cfcfc | bellard | CharDriverState *chr; |
89 | e80cfcfc | bellard | } ChannelState; |
90 | e80cfcfc | bellard | |
91 | e80cfcfc | bellard | struct SerialState {
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92 | e80cfcfc | bellard | struct ChannelState chn[2]; |
93 | e80cfcfc | bellard | }; |
94 | e80cfcfc | bellard | |
95 | e80cfcfc | bellard | #define SERIAL_MAXADDR 7 |
96 | e80cfcfc | bellard | |
97 | 8be1f5c8 | bellard | static void handle_kbd_command(ChannelState *s, int val); |
98 | 8be1f5c8 | bellard | static int serial_can_receive(void *opaque); |
99 | 8be1f5c8 | bellard | static void serial_receive_byte(ChannelState *s, int ch); |
100 | 8be1f5c8 | bellard | |
101 | 8be1f5c8 | bellard | static void put_queue(void *opaque, int b) |
102 | 8be1f5c8 | bellard | { |
103 | 8be1f5c8 | bellard | ChannelState *s = opaque; |
104 | 8be1f5c8 | bellard | KBDQueue *q = &s->queue; |
105 | 8be1f5c8 | bellard | |
106 | 8be1f5c8 | bellard | KBD_DPRINTF("put: 0x%02x\n", b);
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107 | 8be1f5c8 | bellard | if (q->count >= KBD_QUEUE_SIZE)
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108 | 8be1f5c8 | bellard | return;
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109 | 8be1f5c8 | bellard | q->data[q->wptr] = b; |
110 | 8be1f5c8 | bellard | if (++q->wptr == KBD_QUEUE_SIZE)
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111 | 8be1f5c8 | bellard | q->wptr = 0;
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112 | 8be1f5c8 | bellard | q->count++; |
113 | 8be1f5c8 | bellard | serial_receive_byte(s, 0);
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114 | 8be1f5c8 | bellard | } |
115 | 8be1f5c8 | bellard | |
116 | 8be1f5c8 | bellard | static uint32_t get_queue(void *opaque) |
117 | 8be1f5c8 | bellard | { |
118 | 8be1f5c8 | bellard | ChannelState *s = opaque; |
119 | 8be1f5c8 | bellard | KBDQueue *q = &s->queue; |
120 | 8be1f5c8 | bellard | int val;
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121 | 8be1f5c8 | bellard | |
122 | 8be1f5c8 | bellard | if (q->count == 0) { |
123 | 8be1f5c8 | bellard | return 0; |
124 | 8be1f5c8 | bellard | } else {
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125 | 8be1f5c8 | bellard | val = q->data[q->rptr]; |
126 | 8be1f5c8 | bellard | if (++q->rptr == KBD_QUEUE_SIZE)
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127 | 8be1f5c8 | bellard | q->rptr = 0;
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128 | 8be1f5c8 | bellard | q->count--; |
129 | 8be1f5c8 | bellard | } |
130 | 8be1f5c8 | bellard | KBD_DPRINTF("get 0x%02x\n", val);
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131 | 8be1f5c8 | bellard | if (q->count > 0) |
132 | 8be1f5c8 | bellard | serial_receive_byte(s, 0);
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133 | 8be1f5c8 | bellard | return val;
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134 | 8be1f5c8 | bellard | } |
135 | 8be1f5c8 | bellard | |
136 | e80cfcfc | bellard | static void slavio_serial_update_irq(ChannelState *s) |
137 | e80cfcfc | bellard | { |
138 | e80cfcfc | bellard | if ((s->wregs[1] & 1) && // interrupts enabled |
139 | e80cfcfc | bellard | (((s->wregs[1] & 2) && s->txint == 1) || // tx ints enabled, pending |
140 | e80cfcfc | bellard | ((((s->wregs[1] & 0x18) == 8) || ((s->wregs[1] & 0x18) == 0x10)) && |
141 | e80cfcfc | bellard | s->rxint == 1) || // rx ints enabled, pending |
142 | e80cfcfc | bellard | ((s->wregs[15] & 0x80) && (s->rregs[0] & 0x80)))) { // break int e&p |
143 | e80cfcfc | bellard | pic_set_irq(s->irq, 1);
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144 | e80cfcfc | bellard | } else {
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145 | e80cfcfc | bellard | pic_set_irq(s->irq, 0);
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146 | e80cfcfc | bellard | } |
147 | e80cfcfc | bellard | } |
148 | e80cfcfc | bellard | |
149 | e80cfcfc | bellard | static void slavio_serial_reset_chn(ChannelState *s) |
150 | e80cfcfc | bellard | { |
151 | e80cfcfc | bellard | int i;
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152 | e80cfcfc | bellard | |
153 | e80cfcfc | bellard | s->reg = 0;
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154 | e80cfcfc | bellard | for (i = 0; i < SERIAL_MAXADDR; i++) { |
155 | e80cfcfc | bellard | s->rregs[i] = 0;
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156 | e80cfcfc | bellard | s->wregs[i] = 0;
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157 | e80cfcfc | bellard | } |
158 | e80cfcfc | bellard | s->wregs[4] = 4; |
159 | e80cfcfc | bellard | s->wregs[9] = 0xc0; |
160 | e80cfcfc | bellard | s->wregs[11] = 8; |
161 | e80cfcfc | bellard | s->wregs[14] = 0x30; |
162 | e80cfcfc | bellard | s->wregs[15] = 0xf8; |
163 | e80cfcfc | bellard | s->rregs[0] = 0x44; |
164 | e80cfcfc | bellard | s->rregs[1] = 6; |
165 | e80cfcfc | bellard | |
166 | e80cfcfc | bellard | s->rx = s->tx = 0;
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167 | e80cfcfc | bellard | s->rxint = s->txint = 0;
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168 | e80cfcfc | bellard | } |
169 | e80cfcfc | bellard | |
170 | e80cfcfc | bellard | static void slavio_serial_reset(void *opaque) |
171 | e80cfcfc | bellard | { |
172 | e80cfcfc | bellard | SerialState *s = opaque; |
173 | e80cfcfc | bellard | slavio_serial_reset_chn(&s->chn[0]);
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174 | e80cfcfc | bellard | slavio_serial_reset_chn(&s->chn[1]);
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175 | e80cfcfc | bellard | } |
176 | e80cfcfc | bellard | |
177 | 3a5c3138 | bellard | static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
178 | e80cfcfc | bellard | { |
179 | e80cfcfc | bellard | SerialState *ser = opaque; |
180 | e80cfcfc | bellard | ChannelState *s; |
181 | e80cfcfc | bellard | uint32_t saddr; |
182 | e80cfcfc | bellard | int newreg, channel;
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183 | e80cfcfc | bellard | |
184 | e80cfcfc | bellard | val &= 0xff;
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185 | e80cfcfc | bellard | saddr = (addr & 3) >> 1; |
186 | e80cfcfc | bellard | channel = (addr & SERIAL_MAXADDR) >> 2;
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187 | e80cfcfc | bellard | s = &ser->chn[channel]; |
188 | e80cfcfc | bellard | switch (saddr) {
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189 | e80cfcfc | bellard | case 0: |
190 | 8be1f5c8 | bellard | SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, val & 0xff); |
191 | e80cfcfc | bellard | newreg = 0;
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192 | e80cfcfc | bellard | switch (s->reg) {
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193 | e80cfcfc | bellard | case 0: |
194 | e80cfcfc | bellard | newreg = val & 7;
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195 | e80cfcfc | bellard | val &= 0x38;
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196 | e80cfcfc | bellard | switch (val) {
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197 | e80cfcfc | bellard | case 8: |
198 | e80cfcfc | bellard | s->reg |= 0x8;
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199 | e80cfcfc | bellard | break;
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200 | e80cfcfc | bellard | case 0x20: |
201 | e80cfcfc | bellard | s->rxint = 0;
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202 | e80cfcfc | bellard | break;
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203 | e80cfcfc | bellard | case 0x28: |
204 | e80cfcfc | bellard | s->txint = 0;
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205 | e80cfcfc | bellard | break;
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206 | e80cfcfc | bellard | default:
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207 | e80cfcfc | bellard | break;
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208 | e80cfcfc | bellard | } |
209 | e80cfcfc | bellard | break;
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210 | e80cfcfc | bellard | case 1 ... 8: |
211 | e80cfcfc | bellard | case 10 ... 15: |
212 | e80cfcfc | bellard | s->wregs[s->reg] = val; |
213 | e80cfcfc | bellard | break;
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214 | e80cfcfc | bellard | case 9: |
215 | e80cfcfc | bellard | switch (val & 0xc0) { |
216 | e80cfcfc | bellard | case 0: |
217 | e80cfcfc | bellard | default:
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218 | e80cfcfc | bellard | break;
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219 | e80cfcfc | bellard | case 0x40: |
220 | e80cfcfc | bellard | slavio_serial_reset_chn(&ser->chn[1]);
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221 | e80cfcfc | bellard | return;
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222 | e80cfcfc | bellard | case 0x80: |
223 | e80cfcfc | bellard | slavio_serial_reset_chn(&ser->chn[0]);
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224 | e80cfcfc | bellard | return;
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225 | e80cfcfc | bellard | case 0xc0: |
226 | e80cfcfc | bellard | slavio_serial_reset(ser); |
227 | e80cfcfc | bellard | return;
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228 | e80cfcfc | bellard | } |
229 | e80cfcfc | bellard | break;
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230 | e80cfcfc | bellard | default:
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231 | e80cfcfc | bellard | break;
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232 | e80cfcfc | bellard | } |
233 | e80cfcfc | bellard | if (s->reg == 0) |
234 | e80cfcfc | bellard | s->reg = newreg; |
235 | e80cfcfc | bellard | else
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236 | e80cfcfc | bellard | s->reg = 0;
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237 | e80cfcfc | bellard | break;
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238 | e80cfcfc | bellard | case 1: |
239 | 8be1f5c8 | bellard | SER_DPRINTF("Write channel %c, ch %d\n", channel? 'b' : 'a', val); |
240 | e80cfcfc | bellard | if (s->wregs[5] & 8) { // tx enabled |
241 | e80cfcfc | bellard | s->tx = val; |
242 | e80cfcfc | bellard | if (s->chr)
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243 | e80cfcfc | bellard | qemu_chr_write(s->chr, &s->tx, 1);
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244 | 8be1f5c8 | bellard | else if (s->type == kbd) { |
245 | 8be1f5c8 | bellard | handle_kbd_command(s, val); |
246 | 8be1f5c8 | bellard | } |
247 | e80cfcfc | bellard | s->txint = 1;
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248 | 8be1f5c8 | bellard | s->rregs[0] |= 4; |
249 | 8be1f5c8 | bellard | // Interrupts reported only on channel A
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250 | 8be1f5c8 | bellard | if (s->chn == 0) |
251 | 8be1f5c8 | bellard | s->rregs[3] |= 0x10; |
252 | 8be1f5c8 | bellard | else {
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253 | 8be1f5c8 | bellard | s->otherchn->rregs[3] |= 2; |
254 | 8be1f5c8 | bellard | } |
255 | 8be1f5c8 | bellard | slavio_serial_update_irq(s); |
256 | e80cfcfc | bellard | } |
257 | e80cfcfc | bellard | break;
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258 | e80cfcfc | bellard | default:
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259 | e80cfcfc | bellard | break;
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260 | e80cfcfc | bellard | } |
261 | e80cfcfc | bellard | } |
262 | e80cfcfc | bellard | |
263 | 3a5c3138 | bellard | static uint32_t slavio_serial_mem_readb(void *opaque, target_phys_addr_t addr) |
264 | e80cfcfc | bellard | { |
265 | e80cfcfc | bellard | SerialState *ser = opaque; |
266 | e80cfcfc | bellard | ChannelState *s; |
267 | e80cfcfc | bellard | uint32_t saddr; |
268 | e80cfcfc | bellard | uint32_t ret; |
269 | e80cfcfc | bellard | int channel;
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270 | e80cfcfc | bellard | |
271 | e80cfcfc | bellard | saddr = (addr & 3) >> 1; |
272 | e80cfcfc | bellard | channel = (addr & SERIAL_MAXADDR) >> 2;
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273 | e80cfcfc | bellard | s = &ser->chn[channel]; |
274 | e80cfcfc | bellard | switch (saddr) {
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275 | e80cfcfc | bellard | case 0: |
276 | 8be1f5c8 | bellard | SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, s->rregs[s->reg]); |
277 | e80cfcfc | bellard | ret = s->rregs[s->reg]; |
278 | e80cfcfc | bellard | s->reg = 0;
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279 | e80cfcfc | bellard | return ret;
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280 | e80cfcfc | bellard | case 1: |
281 | 8be1f5c8 | bellard | SER_DPRINTF("Read channel %c, ch %d\n", channel? 'b' : 'a', s->rx); |
282 | e80cfcfc | bellard | s->rregs[0] &= ~1; |
283 | 8be1f5c8 | bellard | if (s->type == kbd)
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284 | 8be1f5c8 | bellard | ret = get_queue(s); |
285 | 8be1f5c8 | bellard | else
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286 | 8be1f5c8 | bellard | ret = s->rx; |
287 | 8be1f5c8 | bellard | return ret;
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288 | e80cfcfc | bellard | default:
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289 | e80cfcfc | bellard | break;
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290 | e80cfcfc | bellard | } |
291 | e80cfcfc | bellard | return 0; |
292 | e80cfcfc | bellard | } |
293 | e80cfcfc | bellard | |
294 | e80cfcfc | bellard | static int serial_can_receive(void *opaque) |
295 | e80cfcfc | bellard | { |
296 | e80cfcfc | bellard | ChannelState *s = opaque; |
297 | e80cfcfc | bellard | if (((s->wregs[3] & 1) == 0) // Rx not enabled |
298 | e80cfcfc | bellard | || ((s->rregs[0] & 1) == 1)) // char already available |
299 | e80cfcfc | bellard | return 0; |
300 | e80cfcfc | bellard | else
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301 | e80cfcfc | bellard | return 1; |
302 | e80cfcfc | bellard | } |
303 | e80cfcfc | bellard | |
304 | e80cfcfc | bellard | static void serial_receive_byte(ChannelState *s, int ch) |
305 | e80cfcfc | bellard | { |
306 | e80cfcfc | bellard | s->rregs[0] |= 1; |
307 | 8be1f5c8 | bellard | // Interrupts reported only on channel A
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308 | 8be1f5c8 | bellard | if (s->chn == 0) |
309 | 8be1f5c8 | bellard | s->rregs[3] |= 0x20; |
310 | 8be1f5c8 | bellard | else {
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311 | 8be1f5c8 | bellard | s->otherchn->rregs[3] |= 4; |
312 | 8be1f5c8 | bellard | } |
313 | e80cfcfc | bellard | s->rx = ch; |
314 | e80cfcfc | bellard | s->rxint = 1;
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315 | e80cfcfc | bellard | slavio_serial_update_irq(s); |
316 | e80cfcfc | bellard | } |
317 | e80cfcfc | bellard | |
318 | e80cfcfc | bellard | static void serial_receive_break(ChannelState *s) |
319 | e80cfcfc | bellard | { |
320 | e80cfcfc | bellard | s->rregs[0] |= 0x80; |
321 | e80cfcfc | bellard | slavio_serial_update_irq(s); |
322 | e80cfcfc | bellard | } |
323 | e80cfcfc | bellard | |
324 | e80cfcfc | bellard | static void serial_receive1(void *opaque, const uint8_t *buf, int size) |
325 | e80cfcfc | bellard | { |
326 | e80cfcfc | bellard | ChannelState *s = opaque; |
327 | e80cfcfc | bellard | serial_receive_byte(s, buf[0]);
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328 | e80cfcfc | bellard | } |
329 | e80cfcfc | bellard | |
330 | e80cfcfc | bellard | static void serial_event(void *opaque, int event) |
331 | e80cfcfc | bellard | { |
332 | e80cfcfc | bellard | ChannelState *s = opaque; |
333 | e80cfcfc | bellard | if (event == CHR_EVENT_BREAK)
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334 | e80cfcfc | bellard | serial_receive_break(s); |
335 | e80cfcfc | bellard | } |
336 | e80cfcfc | bellard | |
337 | e80cfcfc | bellard | static CPUReadMemoryFunc *slavio_serial_mem_read[3] = { |
338 | e80cfcfc | bellard | slavio_serial_mem_readb, |
339 | e80cfcfc | bellard | slavio_serial_mem_readb, |
340 | e80cfcfc | bellard | slavio_serial_mem_readb, |
341 | e80cfcfc | bellard | }; |
342 | e80cfcfc | bellard | |
343 | e80cfcfc | bellard | static CPUWriteMemoryFunc *slavio_serial_mem_write[3] = { |
344 | e80cfcfc | bellard | slavio_serial_mem_writeb, |
345 | e80cfcfc | bellard | slavio_serial_mem_writeb, |
346 | e80cfcfc | bellard | slavio_serial_mem_writeb, |
347 | e80cfcfc | bellard | }; |
348 | e80cfcfc | bellard | |
349 | e80cfcfc | bellard | static void slavio_serial_save_chn(QEMUFile *f, ChannelState *s) |
350 | e80cfcfc | bellard | { |
351 | e80cfcfc | bellard | qemu_put_be32s(f, &s->irq); |
352 | e80cfcfc | bellard | qemu_put_be32s(f, &s->reg); |
353 | e80cfcfc | bellard | qemu_put_be32s(f, &s->rxint); |
354 | e80cfcfc | bellard | qemu_put_be32s(f, &s->txint); |
355 | e80cfcfc | bellard | qemu_put_8s(f, &s->rx); |
356 | e80cfcfc | bellard | qemu_put_8s(f, &s->tx); |
357 | e80cfcfc | bellard | qemu_put_buffer(f, s->wregs, 16);
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358 | e80cfcfc | bellard | qemu_put_buffer(f, s->rregs, 16);
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359 | e80cfcfc | bellard | } |
360 | e80cfcfc | bellard | |
361 | e80cfcfc | bellard | static void slavio_serial_save(QEMUFile *f, void *opaque) |
362 | e80cfcfc | bellard | { |
363 | e80cfcfc | bellard | SerialState *s = opaque; |
364 | e80cfcfc | bellard | |
365 | e80cfcfc | bellard | slavio_serial_save_chn(f, &s->chn[0]);
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366 | e80cfcfc | bellard | slavio_serial_save_chn(f, &s->chn[1]);
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367 | e80cfcfc | bellard | } |
368 | e80cfcfc | bellard | |
369 | e80cfcfc | bellard | static int slavio_serial_load_chn(QEMUFile *f, ChannelState *s, int version_id) |
370 | e80cfcfc | bellard | { |
371 | e80cfcfc | bellard | if (version_id != 1) |
372 | e80cfcfc | bellard | return -EINVAL;
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373 | e80cfcfc | bellard | |
374 | e80cfcfc | bellard | qemu_get_be32s(f, &s->irq); |
375 | e80cfcfc | bellard | qemu_get_be32s(f, &s->reg); |
376 | e80cfcfc | bellard | qemu_get_be32s(f, &s->rxint); |
377 | e80cfcfc | bellard | qemu_get_be32s(f, &s->txint); |
378 | e80cfcfc | bellard | qemu_get_8s(f, &s->rx); |
379 | e80cfcfc | bellard | qemu_get_8s(f, &s->tx); |
380 | e80cfcfc | bellard | qemu_get_buffer(f, s->wregs, 16);
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381 | e80cfcfc | bellard | qemu_get_buffer(f, s->rregs, 16);
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382 | e80cfcfc | bellard | return 0; |
383 | e80cfcfc | bellard | } |
384 | e80cfcfc | bellard | |
385 | e80cfcfc | bellard | static int slavio_serial_load(QEMUFile *f, void *opaque, int version_id) |
386 | e80cfcfc | bellard | { |
387 | e80cfcfc | bellard | SerialState *s = opaque; |
388 | e80cfcfc | bellard | int ret;
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389 | e80cfcfc | bellard | |
390 | e80cfcfc | bellard | ret = slavio_serial_load_chn(f, &s->chn[0], version_id);
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391 | e80cfcfc | bellard | if (ret != 0) |
392 | e80cfcfc | bellard | return ret;
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393 | e80cfcfc | bellard | ret = slavio_serial_load_chn(f, &s->chn[1], version_id);
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394 | e80cfcfc | bellard | return ret;
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395 | e80cfcfc | bellard | |
396 | e80cfcfc | bellard | } |
397 | e80cfcfc | bellard | |
398 | e80cfcfc | bellard | SerialState *slavio_serial_init(int base, int irq, CharDriverState *chr1, CharDriverState *chr2) |
399 | e80cfcfc | bellard | { |
400 | 8be1f5c8 | bellard | int slavio_serial_io_memory, i;
|
401 | e80cfcfc | bellard | SerialState *s; |
402 | e80cfcfc | bellard | |
403 | e80cfcfc | bellard | s = qemu_mallocz(sizeof(SerialState));
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404 | e80cfcfc | bellard | if (!s)
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405 | e80cfcfc | bellard | return NULL; |
406 | e80cfcfc | bellard | |
407 | e80cfcfc | bellard | slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
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408 | e80cfcfc | bellard | cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory); |
409 | e80cfcfc | bellard | |
410 | 8be1f5c8 | bellard | s->chn[0].chr = chr1;
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411 | 8be1f5c8 | bellard | s->chn[1].chr = chr2;
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412 | 8be1f5c8 | bellard | |
413 | 8be1f5c8 | bellard | for (i = 0; i < 2; i++) { |
414 | 8be1f5c8 | bellard | s->chn[i].irq = irq; |
415 | 8be1f5c8 | bellard | s->chn[i].chn = 1 - i;
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416 | 8be1f5c8 | bellard | s->chn[i].type = ser; |
417 | 8be1f5c8 | bellard | if (s->chn[i].chr) {
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418 | 8be1f5c8 | bellard | qemu_chr_add_read_handler(s->chn[i].chr, serial_can_receive, serial_receive1, &s->chn[i]); |
419 | 8be1f5c8 | bellard | qemu_chr_add_event_handler(s->chn[i].chr, serial_event); |
420 | 8be1f5c8 | bellard | } |
421 | e80cfcfc | bellard | } |
422 | 8be1f5c8 | bellard | s->chn[0].otherchn = &s->chn[1]; |
423 | 8be1f5c8 | bellard | s->chn[1].otherchn = &s->chn[0]; |
424 | e80cfcfc | bellard | register_savevm("slavio_serial", base, 1, slavio_serial_save, slavio_serial_load, s); |
425 | e80cfcfc | bellard | qemu_register_reset(slavio_serial_reset, s); |
426 | e80cfcfc | bellard | slavio_serial_reset(s); |
427 | e80cfcfc | bellard | return s;
|
428 | e80cfcfc | bellard | } |
429 | e80cfcfc | bellard | |
430 | 8be1f5c8 | bellard | static const uint8_t keycodes[128] = { |
431 | 8be1f5c8 | bellard | 127, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 53, |
432 | 8be1f5c8 | bellard | 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 89, 76, 77, 78, |
433 | 8be1f5c8 | bellard | 79, 80, 81, 82, 83, 84, 85, 86, 87, 42, 99, 88, 100, 101, 102, 103, |
434 | 8be1f5c8 | bellard | 104, 105, 106, 107, 108, 109, 110, 47, 19, 121, 119, 5, 6, 8, 10, 12, |
435 | 8be1f5c8 | bellard | 14, 16, 17, 18, 7, 98, 23, 68, 69, 70, 71, 91, 92, 93, 125, 112, |
436 | 8be1f5c8 | bellard | 113, 114, 94, 50, 0, 0, 124, 9, 11, 0, 0, 0, 0, 0, 0, 0, |
437 | 8be1f5c8 | bellard | 90, 0, 46, 22, 13, 111, 52, 20, 96, 24, 28, 74, 27, 123, 44, 66, |
438 | 8be1f5c8 | bellard | 0, 45, 2, 4, 48, 0, 0, 21, 0, 0, 0, 0, 0, 120, 122, 67, |
439 | 8be1f5c8 | bellard | }; |
440 | 8be1f5c8 | bellard | |
441 | e80cfcfc | bellard | static void sunkbd_event(void *opaque, int ch) |
442 | e80cfcfc | bellard | { |
443 | e80cfcfc | bellard | ChannelState *s = opaque; |
444 | 8be1f5c8 | bellard | int release = ch & 0x80; |
445 | 8be1f5c8 | bellard | |
446 | 8be1f5c8 | bellard | ch = keycodes[ch & 0x7f];
|
447 | 8be1f5c8 | bellard | KBD_DPRINTF("Keycode %d (%s)\n", ch, release? "release" : "press"); |
448 | 8be1f5c8 | bellard | put_queue(s, ch | release); |
449 | 8be1f5c8 | bellard | } |
450 | 8be1f5c8 | bellard | |
451 | 8be1f5c8 | bellard | static void handle_kbd_command(ChannelState *s, int val) |
452 | 8be1f5c8 | bellard | { |
453 | 8be1f5c8 | bellard | KBD_DPRINTF("Command %d\n", val);
|
454 | 8be1f5c8 | bellard | switch (val) {
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455 | 8be1f5c8 | bellard | case 1: // Reset, return type code |
456 | 8be1f5c8 | bellard | put_queue(s, 0xff);
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457 | 8be1f5c8 | bellard | put_queue(s, 0xff);
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458 | 8be1f5c8 | bellard | put_queue(s, 5); // Type 5 |
459 | 8be1f5c8 | bellard | break;
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460 | 8be1f5c8 | bellard | case 7: // Query layout |
461 | 8be1f5c8 | bellard | put_queue(s, 0xfe);
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462 | 8be1f5c8 | bellard | put_queue(s, 0x20); // XXX, layout? |
463 | 8be1f5c8 | bellard | break;
|
464 | 8be1f5c8 | bellard | default:
|
465 | 8be1f5c8 | bellard | break;
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466 | 8be1f5c8 | bellard | } |
467 | e80cfcfc | bellard | } |
468 | e80cfcfc | bellard | |
469 | e80cfcfc | bellard | static void sunmouse_event(void *opaque, |
470 | e80cfcfc | bellard | int dx, int dy, int dz, int buttons_state) |
471 | e80cfcfc | bellard | { |
472 | e80cfcfc | bellard | ChannelState *s = opaque; |
473 | e80cfcfc | bellard | int ch;
|
474 | e80cfcfc | bellard | |
475 | e80cfcfc | bellard | // XXX
|
476 | e80cfcfc | bellard | ch = 0x42;
|
477 | e80cfcfc | bellard | serial_receive_byte(s, ch); |
478 | e80cfcfc | bellard | } |
479 | e80cfcfc | bellard | |
480 | e80cfcfc | bellard | void slavio_serial_ms_kbd_init(int base, int irq) |
481 | e80cfcfc | bellard | { |
482 | 8be1f5c8 | bellard | int slavio_serial_io_memory, i;
|
483 | e80cfcfc | bellard | SerialState *s; |
484 | e80cfcfc | bellard | |
485 | e80cfcfc | bellard | s = qemu_mallocz(sizeof(SerialState));
|
486 | e80cfcfc | bellard | if (!s)
|
487 | e80cfcfc | bellard | return;
|
488 | 8be1f5c8 | bellard | for (i = 0; i < 2; i++) { |
489 | 8be1f5c8 | bellard | s->chn[i].irq = irq; |
490 | 8be1f5c8 | bellard | s->chn[i].chn = 1 - i;
|
491 | 8be1f5c8 | bellard | s->chn[i].chr = NULL;
|
492 | 8be1f5c8 | bellard | } |
493 | 8be1f5c8 | bellard | s->chn[0].otherchn = &s->chn[1]; |
494 | 8be1f5c8 | bellard | s->chn[1].otherchn = &s->chn[0]; |
495 | 8be1f5c8 | bellard | s->chn[0].type = mouse;
|
496 | 8be1f5c8 | bellard | s->chn[1].type = kbd;
|
497 | e80cfcfc | bellard | |
498 | e80cfcfc | bellard | slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
|
499 | e80cfcfc | bellard | cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory); |
500 | e80cfcfc | bellard | |
501 | 8be1f5c8 | bellard | qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0]);
|
502 | 8be1f5c8 | bellard | qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
|
503 | e80cfcfc | bellard | qemu_register_reset(slavio_serial_reset, s); |
504 | e80cfcfc | bellard | slavio_serial_reset(s); |
505 | e80cfcfc | bellard | } |