Rev 1787 | Rev 1932 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
982 | decky | 1 | /* |
2 | * Copyright (C) 2006 Martin Decky |
||
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 |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
13 | * documentation and/or other materials provided with the distribution. |
||
14 | * - The name of the author may not be used to endorse or promote products |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
22 | * NOT 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 OF |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
1734 | decky | 29 | /** @addtogroup ppc32 |
1702 | cejka | 30 | * @{ |
31 | */ |
||
32 | /** @file |
||
33 | */ |
||
34 | |||
982 | decky | 35 | #include <arch/drivers/cuda.h> |
1928 | decky | 36 | #include <ddi/irq.h> |
982 | decky | 37 | #include <arch/asm.h> |
987 | decky | 38 | #include <console/console.h> |
1628 | decky | 39 | #include <console/chardev.h> |
1480 | palkovsky | 40 | #include <arch/drivers/pic.h> |
1625 | decky | 41 | #include <sysinfo/sysinfo.h> |
1480 | palkovsky | 42 | #include <interrupt.h> |
1619 | decky | 43 | #include <stdarg.h> |
982 | decky | 44 | |
1928 | decky | 45 | #define CUDA_IRQ 10 |
1633 | decky | 46 | #define SPECIAL '?' |
47 | |||
1619 | decky | 48 | #define PACKET_ADB 0x00 |
49 | #define PACKET_CUDA 0x01 |
||
50 | |||
982 | decky | 51 | #define CUDA_POWERDOWN 0x0a |
52 | |||
53 | #define RS 0x200 |
||
54 | #define B (0 * RS) |
||
55 | #define A (1 * RS) |
||
56 | #define SR (10 * RS) |
||
57 | #define ACR (11 * RS) |
||
58 | |||
59 | #define SR_OUT 0x10 |
||
60 | #define TACK 0x10 |
||
61 | #define TIP 0x20 |
||
62 | |||
63 | |||
1780 | jermar | 64 | static volatile uint8_t *cuda = NULL; |
1928 | decky | 65 | static irq_t cuda_irq; /**< Cuda's IRQ. */ |
982 | decky | 66 | |
1928 | decky | 67 | static ipc_notif_cfg_t saved_notif_cfg; |
1606 | decky | 68 | |
1928 | decky | 69 | |
1619 | decky | 70 | static char lchars[0x80] = { |
1633 | decky | 71 | 'a', |
72 | 's', |
||
73 | 'd', |
||
74 | 'f', |
||
75 | 'h', |
||
76 | 'g', |
||
77 | 'z', |
||
78 | 'x', |
||
79 | 'c', |
||
80 | 'v', |
||
81 | SPECIAL, |
||
82 | 'b', |
||
83 | 'q', |
||
84 | 'w', |
||
85 | 'e', |
||
86 | 'r', |
||
87 | 'y', |
||
88 | 't', |
||
89 | '1', |
||
90 | '2', |
||
91 | '3', |
||
92 | '4', |
||
93 | '6', |
||
94 | '5', |
||
95 | '=', |
||
96 | '9', |
||
97 | '7', |
||
98 | '-', |
||
99 | '8', |
||
100 | '0', |
||
101 | ']', |
||
102 | 'o', |
||
103 | 'u', |
||
104 | '[', |
||
105 | 'i', |
||
106 | 'p', |
||
107 | '\n', /* Enter */ |
||
108 | 'l', |
||
109 | 'j', |
||
110 | '\'', |
||
111 | 'k', |
||
112 | ';', |
||
113 | '\\', |
||
114 | ',', |
||
115 | '/', |
||
116 | 'n', |
||
117 | 'm', |
||
118 | '.', |
||
119 | '\t', /* Tab */ |
||
120 | ' ', |
||
121 | '`', |
||
122 | '\b', /* Backspace */ |
||
123 | SPECIAL, |
||
124 | SPECIAL, /* Escape */ |
||
125 | SPECIAL, /* Ctrl */ |
||
126 | SPECIAL, /* Alt */ |
||
127 | SPECIAL, /* Shift */ |
||
128 | SPECIAL, /* Caps-Lock */ |
||
129 | SPECIAL, /* RAlt */ |
||
130 | SPECIAL, /* Left */ |
||
131 | SPECIAL, /* Right */ |
||
132 | SPECIAL, /* Down */ |
||
133 | SPECIAL, /* Up */ |
||
134 | SPECIAL, |
||
135 | SPECIAL, |
||
136 | '.', /* Keypad . */ |
||
137 | SPECIAL, |
||
138 | '*', /* Keypad * */ |
||
139 | SPECIAL, |
||
140 | '+', /* Keypad + */ |
||
141 | SPECIAL, |
||
142 | SPECIAL, /* NumLock */ |
||
143 | SPECIAL, |
||
144 | SPECIAL, |
||
145 | SPECIAL, |
||
146 | '/', /* Keypad / */ |
||
147 | '\n', /* Keypad Enter */ |
||
148 | SPECIAL, |
||
149 | '-', /* Keypad - */ |
||
150 | SPECIAL, |
||
151 | SPECIAL, |
||
152 | SPECIAL, |
||
153 | '0', /* Keypad 0 */ |
||
154 | '1', /* Keypad 1 */ |
||
155 | '2', /* Keypad 2 */ |
||
156 | '3', /* Keypad 3 */ |
||
157 | '4', /* Keypad 4 */ |
||
158 | '5', /* Keypad 5 */ |
||
159 | '6', /* Keypad 6 */ |
||
160 | '7', /* Keypad 7 */ |
||
161 | SPECIAL, |
||
162 | '8', /* Keypad 8 */ |
||
163 | '9', /* Keypad 9 */ |
||
164 | SPECIAL, |
||
165 | SPECIAL, |
||
166 | SPECIAL, |
||
167 | SPECIAL, /* F5 */ |
||
168 | SPECIAL, /* F6 */ |
||
169 | SPECIAL, /* F7 */ |
||
170 | SPECIAL, /* F3 */ |
||
171 | SPECIAL, /* F8 */ |
||
172 | SPECIAL, /* F9 */ |
||
173 | SPECIAL, |
||
174 | SPECIAL, /* F11 */ |
||
175 | SPECIAL, |
||
176 | SPECIAL, /* F13 */ |
||
177 | SPECIAL, |
||
178 | SPECIAL, /* ScrollLock */ |
||
179 | SPECIAL, |
||
180 | SPECIAL, /* F10 */ |
||
181 | SPECIAL, |
||
182 | SPECIAL, /* F12 */ |
||
183 | SPECIAL, |
||
184 | SPECIAL, /* Pause */ |
||
185 | SPECIAL, /* Insert */ |
||
186 | SPECIAL, /* Home */ |
||
187 | SPECIAL, /* PageUp */ |
||
188 | SPECIAL, /* Delete */ |
||
189 | SPECIAL, /* F4 */ |
||
190 | SPECIAL, /* End */ |
||
191 | SPECIAL, /* F2 */ |
||
192 | SPECIAL, /* PageDown */ |
||
193 | SPECIAL /* F1 */ |
||
1619 | decky | 194 | }; |
195 | |||
196 | |||
1780 | jermar | 197 | void send_packet(const uint8_t kind, index_t count, ...); |
1619 | decky | 198 | |
199 | |||
1780 | jermar | 200 | static void receive_packet(uint8_t *kind, index_t count, uint8_t data[]) |
1619 | decky | 201 | { |
202 | cuda[B] = cuda[B] & ~TIP; |
||
203 | *kind = cuda[SR]; |
||
204 | |||
205 | index_t i; |
||
206 | for (i = 0; i < count; i++) |
||
207 | data[i] = cuda[SR]; |
||
208 | |||
209 | cuda[B] = cuda[B] | TIP; |
||
210 | } |
||
211 | |||
212 | |||
1606 | decky | 213 | /* Called from getc(). */ |
214 | static void cuda_resume(chardev_t *d) |
||
215 | { |
||
216 | } |
||
217 | |||
218 | |||
219 | /* Called from getc(). */ |
||
220 | static void cuda_suspend(chardev_t *d) |
||
221 | { |
||
222 | } |
||
223 | |||
224 | |||
225 | static char key_read(chardev_t *d) |
||
226 | { |
||
227 | char ch; |
||
228 | |||
229 | ch = 0; |
||
230 | return ch; |
||
231 | } |
||
232 | |||
233 | |||
1628 | decky | 234 | static chardev_t kbrd; |
1606 | decky | 235 | static chardev_operations_t ops = { |
236 | .suspend = cuda_suspend, |
||
237 | .resume = cuda_resume, |
||
238 | .read = key_read |
||
239 | }; |
||
240 | |||
1619 | decky | 241 | |
1633 | decky | 242 | int cuda_get_scancode(void) |
1480 | palkovsky | 243 | { |
1780 | jermar | 244 | uint8_t kind; |
245 | uint8_t data[4]; |
||
1619 | decky | 246 | |
247 | receive_packet(&kind, 4, data); |
||
248 | |||
1628 | decky | 249 | if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c)) |
250 | return data[2]; |
||
251 | |||
1633 | decky | 252 | return -1; |
1480 | palkovsky | 253 | } |
982 | decky | 254 | |
1928 | decky | 255 | static void cuda_irq_handler(irq_t *irq, void *arg, ...) |
1628 | decky | 256 | { |
1928 | decky | 257 | if (irq->notif_cfg.answerbox) |
258 | ipc_irq_send_notif(irq); |
||
259 | else { |
||
260 | int scan_code = cuda_get_scancode(); |
||
261 | |||
262 | if (scan_code != -1) { |
||
263 | uint8_t scancode = (uint8_t) scan_code; |
||
264 | if ((scancode & 0x80) != 0x80) |
||
265 | chardev_push_character(&kbrd, lchars[scancode & 0x7f]); |
||
266 | } |
||
1633 | decky | 267 | } |
1628 | decky | 268 | } |
269 | |||
1928 | decky | 270 | static irq_ownership_t cuda_claim(void) |
271 | { |
||
272 | return IRQ_ACCEPT; |
||
273 | } |
||
1628 | decky | 274 | |
1928 | decky | 275 | |
1734 | decky | 276 | /** Initialize keyboard and service interrupts using kernel routine */ |
277 | void cuda_grab(void) |
||
278 | { |
||
1928 | decky | 279 | if (cuda_irq.notif_cfg.answerbox) { |
280 | saved_notif_cfg = cuda_irq.notif_cfg; |
||
281 | cuda_irq.notif_cfg.answerbox = NULL; |
||
282 | cuda_irq.notif_cfg.code = NULL; |
||
283 | cuda_irq.notif_cfg.method = 0; |
||
284 | cuda_irq.notif_cfg.counter = 0; |
||
285 | } |
||
1734 | decky | 286 | } |
287 | |||
288 | |||
289 | /** Resume the former interrupt vector */ |
||
290 | void cuda_release(void) |
||
291 | { |
||
1928 | decky | 292 | if (saved_notif_cfg.answerbox) |
293 | cuda_irq.notif_cfg = saved_notif_cfg; |
||
1734 | decky | 294 | } |
295 | |||
296 | |||
1928 | decky | 297 | void cuda_init(devno_t devno, uintptr_t base, size_t size) |
990 | decky | 298 | { |
1928 | decky | 299 | cuda = (uint8_t *) hw_map(base, size); |
1619 | decky | 300 | |
1606 | decky | 301 | chardev_initialize("cuda_kbd", &kbrd, &ops); |
302 | stdin = &kbrd; |
||
1625 | decky | 303 | |
1928 | decky | 304 | irq_initialize(&cuda_irq); |
305 | cuda_irq.devno = devno; |
||
306 | cuda_irq.inr = CUDA_IRQ; |
||
307 | cuda_irq.claim = cuda_claim; |
||
308 | cuda_irq.handler = cuda_irq_handler; |
||
309 | irq_register(&cuda_irq); |
||
310 | |||
311 | pic_enable_interrupt(CUDA_IRQ); |
||
312 | |||
313 | sysinfo_set_item_val("kbd", NULL, true); |
||
314 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
||
315 | sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ); |
||
316 | sysinfo_set_item_val("kbd.address.virtual", NULL, base); |
||
317 | |||
318 | cuda_grab(); |
||
990 | decky | 319 | } |
320 | |||
321 | |||
1780 | jermar | 322 | void send_packet(const uint8_t kind, index_t count, ...) |
1628 | decky | 323 | { |
324 | index_t i; |
||
325 | va_list va; |
||
326 | |||
327 | cuda[B] = cuda[B] | TIP; |
||
328 | cuda[ACR] = cuda[ACR] | SR_OUT; |
||
329 | cuda[SR] = kind; |
||
330 | cuda[B] = cuda[B] & ~TIP; |
||
331 | |||
332 | va_start(va, count); |
||
333 | |||
334 | for (i = 0; i < count; i++) { |
||
335 | cuda[ACR] = cuda[ACR] | SR_OUT; |
||
336 | cuda[SR] = va_arg(va, int); |
||
337 | cuda[B] = cuda[B] | TACK; |
||
338 | } |
||
339 | |||
340 | va_end(va); |
||
341 | |||
342 | cuda[B] = cuda[B] | TIP; |
||
343 | } |
||
344 | |||
345 | |||
982 | decky | 346 | void cpu_halt(void) { |
1004 | decky | 347 | #ifdef CONFIG_POWEROFF |
1619 | decky | 348 | send_packet(PACKET_CUDA, 1, CUDA_POWERDOWN); |
349 | #endif |
||
1269 | decky | 350 | asm volatile ( |
351 | "b 0\n" |
||
352 | ); |
||
982 | decky | 353 | } |
1702 | cejka | 354 | |
1734 | decky | 355 | /** @} |
1702 | cejka | 356 | */ |