![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to pe_init.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple XNU] / XNU / pexpert / ppc|
Return to pe_init.c CVS log | Up to [Apple XNU] / XNU / pexpert / ppc |
1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * file: pe_init.c
24: * PPC platform expert initialization.
25: */
26: #include <mach/boot_info.h>
27: #include <mach/time_value.h>
28: #include <pexpert/protos.h>
29: #include <pexpert/pexpert.h>
30: #include <pexpert/ppc/powermac.h>
31: #include <pexpert/ppc/interrupts.h>
32: #include <pexpert/device_tree.h>
33: #include <kern/debug.h>
34: #include "pe_images.h"
35:
36: /* extern references */
37: void pe_identify_machine(void);
38:
39: /* private globals */
40: PE_state_t PE_state;
41: /* powermac specific info */
42: powermac_info_t powermac_info;
43:
44: static int DEBUGFlag;
45:
46: static int PE_stub_read_write_time_of_day(unsigned int options, long * secs)
47: {
48: // believe it or, BSD crashes if invalid time returned. FIXME.
49: if( options == kPEReadTOD)
50: *secs = 0xb2383c72;
51:
52: return 0;
53: }
54:
55: static int PE_stub_poll_input(unsigned int options, char * c)
56: {
57: *c = 0xff;
58:
59: return 1;
60: }
61:
62: static int PE_stub_write_IIC(unsigned char addr, unsigned char reg,
63: unsigned char data)
64: {
65: return 1;
66: }
67:
68: int (*PE_read_write_time_of_day)(unsigned int options, long * secs)
69: = PE_stub_read_write_time_of_day;
70: int (*PE_poll_input)(unsigned int options, char * c)
71: = PE_stub_poll_input;
72:
73: int (*PE_write_IIC)(unsigned char addr, unsigned char reg,
74: unsigned char data)
75: = PE_stub_write_IIC;
76:
77:
78: int PE_initialize_console( PE_Video * info, int op )
79: {
80: static int last_console = -1;
81: Boot_Video bootInfo;
82: Boot_Video * bInfo;
83:
84: if( info) {
85: bootInfo.v_baseAddr = info->v_baseAddr;
86: bootInfo.v_rowBytes = info->v_rowBytes;
87: bootInfo.v_width = info->v_width;
88: bootInfo.v_height = info->v_height;
89: bootInfo.v_depth = info->v_depth;
90: bootInfo.v_display = 0;
91: bInfo = &bootInfo;
92: } else
93: bInfo = 0;
94:
95: switch( op ) {
96:
97: case kPEDisableScreen:
98: initialize_screen((void *) bInfo, op);
99: last_console = switch_to_serial_console();
100: break;
101:
102: case kPEEnableScreen:
103: initialize_screen((void *) bInfo, op);
104: if( last_console != -1)
105: switch_to_old_console( last_console);
106: break;
107:
108: default:
109: initialize_screen((void *) bInfo, op);
110: break;
111: }
112:
113: return 0;
114: }
115:
116: static boolean_t find_image( const char * name,
117: void ** desc,
118: unsigned char ** data,
119: unsigned char ** clut )
120: {
121: boolean_t ok;
122: DTEntry entry;
123: int size;
124:
125: #if 0
126: // This is a little flawed now the device tree data
127: // is freed.
128: if( (kSuccess == DTLookupEntry(0, "/AAPL,images", &entry))
129: && (kSuccess == DTLookupEntry(entry, name, &entry)) ) {
130:
131: ok = ( (kSuccess == DTGetProperty(entry, "desc",
132: desc, &size))
133: && (kSuccess == DTGetProperty(entry, "data",
134: (void **)data, &size)));
135:
136: if( clut && (kSuccess != DTGetProperty(entry, "clut",
137: (void **)clut, &size)))
138: *clut = appleClut8;
139: } else
140: #endif
141: ok = FALSE;
142:
143: return( ok );
144: }
145:
146: void PE_init_iokit(void)
147: {
148: kern_return_t ret;
149: void * desc;
150: unsigned char * data;
151: unsigned char * clut;
152:
153: PE_init_kprintf(TRUE);
154: PE_init_printf(TRUE);
155:
156: // init this now to get mace debugger for iokit startup
157: PE_init_ethernet_debugger();
158:
159: if( !find_image( "progress", &desc, &data, &clut)) {
160: clut = appleClut8;
161: desc = &default_progress;
162: data = default_progress_data;
163: }
164: vc_progress_initialize( desc, data, clut );
165:
166: PE_initialize_console( (PE_Video *) 0, kPEAcquireScreen );
167:
168: ret = StartIOKit( PE_state.deviceTreeHead, PE_state.bootArgs,
169: (void *)0, (void *)0);
170: }
171:
172: void PE_init_platform(boolean_t vm_initialized, void *_args)
173: {
174: boot_args *args = (boot_args *)_args;
175:
176: if (PE_state.initialized == FALSE)
177: {
178: PE_state.initialized = TRUE;
179: PE_state.bootArgs = _args;
180: PE_state.deviceTreeHead = args->deviceTreeP;
181: PE_state.video.v_baseAddr = args->Video.v_baseAddr;
182: PE_state.video.v_rowBytes = args->Video.v_rowBytes;
183: PE_state.video.v_width = args->Video.v_width;
184: PE_state.video.v_height = args->Video.v_height;
185: PE_state.video.v_depth = args->Video.v_depth;
186: PE_state.video.v_display = args->Video.v_display;
187: strcpy( PE_state.video.v_pixelFormat, "PPPPPPPP");
188: }
189:
190: if (!vm_initialized)
191: {
192: /*
193: * Setup the OpenFirmware Device Tree routines
194: * so the console can be found and the right I/O space
195: * can be used..
196: */
197: DTInit(PE_state.deviceTreeHead);
198:
199: /* Setup powermac_info and structures */
200: pe_identify_machine();
201: }
202: else
203: {
204: pe_init_debug();
205: }
206: }
207:
208: void PE_create_console( void )
209: {
210: if (PE_state.video.v_display)
211: PE_initialize_console( &PE_state.video, kPEGraphicsMode );
212: else
213: PE_initialize_console( &PE_state.video, kPETextMode );
214: }
215:
216: int PE_current_console( PE_Video * info )
217: {
218: *info = PE_state.video;
219: return( 0);
220: }
221:
222: void PE_display_icon( unsigned int flags,
223: const char * name )
224: {
225: void * desc;
226: unsigned char * data;
227:
228: if( !find_image( name, &desc, &data, 0)) {
229: desc = &default_roroot;
230: data = default_noroot_data;
231: }
232: vc_display_icon( desc, data );
233: }
234:
235: extern boolean_t PE_get_hotkey(
236: unsigned char key)
237: {
238: unsigned char * adbKeymap;
239: int size;
240: DTEntry entry;
241:
242: if( (kSuccess != DTLookupEntry( 0, "/", &entry))
243: || (kSuccess != DTGetProperty( entry, "AAPL,adb-keymap",
244: (void **)&adbKeymap, &size))
245: || (size != 16))
246:
247: return( FALSE);
248:
249: if( key > 127)
250: return( FALSE);
251:
252: return( adbKeymap[ key / 8 ] & (0x80 >> (key & 7)));
253: }
254:
255: void PE_pause(int seconds)
256: {
257: int x, y, z;
258:
259: for (x = 0; x < (500000*seconds); x++)
260: for (y = 0; y < 100; y++)
261: z = x ^ y;
262: }
263:
264: void NO_ENTRY() { }
265:
266: void PE_register_timebase_callback(timebase_callback_func callback)
267: {
268: powermac_info.timebase_callback = callback;
269:
270: PE_call_timebase_callback();
271: }
272:
273: void PE_call_timebase_callback(void)
274: {
275: struct timebase_freq_t timebase_freq;
276: unsigned long num, den, cnt;
277:
278: num = powermac_info.bus_clock_rate_num * powermac_info.bus_to_dec_rate_num;
279: den = powermac_info.bus_clock_rate_den * powermac_info.bus_to_dec_rate_den;
280:
281: cnt = 2;
282: while (cnt <= den) {
283: if ((num % cnt) || (den % cnt)) {
284: cnt++;
285: continue;
286: }
287:
288: num /= cnt;
289: den /= cnt;
290: }
291:
292: timebase_freq.timebase_num = num;
293: timebase_freq.timebase_den = den;
294:
295: if (powermac_info.timebase_callback)
296: powermac_info.timebase_callback(&timebase_freq);
297: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.