/[gxemul]/trunk/src/devices/dev_turbochannel.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
ViewVC logotype

Contents of /trunk/src/devices/dev_turbochannel.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 10 - (show annotations)
Mon Oct 8 16:18:27 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 11358 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.815 2005/06/27 23:04:35 debug Exp $
20050617	Experimenting some more with netbooting OpenBSD/sgi. Adding
		a hack which allows emulated ethernet networks to be
		distributed across multiple emulator processes.
20050618	Minor updates (documentation, dummy YAMON emulation, etc).
20050620	strcpy/strcat -> strlcpy/strlcat updates.
		Some more progress on evbmips (Malta).
20050621	Adding a section to doc/configfiles.html about ethernet
		emulation across multiple hosts.
		Beginning the work on the ARM translation engine (using the
		dynamic-but-not-binary translation method).
		Fixing a bintrans bug: 0x9fc00000 should always be treated as
		PROM area, just as 0xbfc00000 is.
		Minor progress on Malta emulation (the PCI-ISA bus).
20050622	NetBSD/evbmips can now be installed (using another emulated
		machine) and run (including userland and so on). :-)
		Spliting up the bintrans haddr_entry field into two (one for
		read, one for write). Probably not much of a speed increase,
		though.
		Updating some NetBSD 2.0 -> 2.0.2 in the documentation.
20050623	Minor updates (documentation, the TODO file, etc).
		gzipped kernels are now always automagically gunzipped when
		loaded.
20050624	Adding a dummy Playstation Portable (PSP) mode, just barely
		enough to run Hello World (in weird colors :-).
		Removing the -b command line option; old bintrans is enabled
		by default instead. It makes more sense.
		Trying to finally fix the non-working performance measurement
		thing (instr/second etc).
20050625	Continuing on the essential basics for ARM emulation. Two
		instructions seem to work, a branch and a simple "mov". (The
		mov arguments are not correct yet.) Performance is definitely
		reasonable.
		Various other minor updates.
		Adding the ARM "bl" instruction.
		Adding support for combining multiple ARM instructions into one
		function call. ("mov" + "mov" is the only one implemented so
		far, but it seems to work.)
		Cleaning up some IP32 interrupt things (crime/mace); disabling
		the PS/2 keyboard controller on IP32, so that NetBSD/sgimips
		boots into userland again.
20050626	Finally! NetBSD/sgimips netboots. Adding instructions to
		doc/guestoses.html on how to set up an nfs server etc.
		Various other minor fixes.
		Playstation Portable ".pbp" files can now be used directly.
		(The ELF part of the .pbp is extracted transparently.)
		Converting some sprintf -> snprintf.
		Adding some more instructions to the ARM disassembler.
20050627	More ARM updates. Adding some simple ldr(b), str(b),
		cmps, and conditional branch instructions, enough to run
		a simple Hello World program.
		All ARM instructions are now inlined/generated for all possible
		condition codes.
		Adding add and sub, and more load/store instructions.
		Removing dummy files: cpu_alpha.c, cpu_hppa.c, and cpu_sparc.c.
		Some minor documentation updates; preparing for a 0.3.4
		release. Updating some URLs.

==============  RELEASE 0.3.4  ==============
1 /*
2 * Copyright (C) 2003-2005 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. 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 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: dev_turbochannel.c,v 1.42 2005/06/26 11:43:48 debug Exp $
29 *
30 * Generic framework for TURBOchannel devices, used in DECstation machines.
31 */
32
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36
37 #include "devices.h"
38 #include "machine.h"
39 #include "memory.h"
40 #include "misc.h"
41 #include "sfbreg.h"
42
43
44 #define DEVICE_NAME_BUFLEN 9
45 #define CARD_NAME_BUFLEN 9
46 #define CARD_FIRMWARE_BUFLEN 5
47
48 struct turbochannel_data {
49 int slot_nr;
50 uint64_t baseaddr;
51 uint64_t endaddr;
52 int irq;
53
54 int rom_skip;
55
56 char device_name[DEVICE_NAME_BUFLEN]; /* NUL-terminated */
57
58 /* These should be terminated with spaces */
59 char card_firmware_version[CARD_NAME_BUFLEN];
60 char card_vendor_name[CARD_NAME_BUFLEN];
61 char card_module_name[CARD_NAME_BUFLEN];
62 char card_firmware_type[CARD_FIRMWARE_BUFLEN];
63 };
64
65
66 /*
67 * dev_turbochannel_access():
68 */
69 int dev_turbochannel_access(struct cpu *cpu, struct memory *mem,
70 uint64_t relative_addr, unsigned char *data, size_t len,
71 int writeflag, void *extra)
72 {
73 struct turbochannel_data *d = extra;
74 uint64_t idata = 0, odata = 0;
75
76 idata = memory_readmax64(cpu, data, len);
77
78 relative_addr += d->rom_skip;
79
80 if (writeflag == MEM_READ) {
81 debug("[ turbochannel: read from slot %i addr 0x%08lx (",
82 d->slot_nr, (long)relative_addr);
83
84 relative_addr &= 0x7fff;
85
86 switch (relative_addr) {
87 case 0x3e0:
88 odata = 0x00000001; debug("ROM width");
89 break;
90 case 0x3e4:
91 odata = 0x00000004; debug("ROM stride");
92 break;
93 case 0x3e8:
94 /* 8KB * romsize */
95 odata = 0x00000001; debug("ROM size");
96 break;
97 case 0x3ec:
98 /* 4MB * slotsize */
99 odata = 0x00000001; debug("slot size");
100 break;
101 case 0x3f0:
102 odata = 0x55555555; debug("ROM signature byte 0");
103 break;
104 case 0x3f4:
105 odata = 0x00000000; debug("ROM signature byte 1");
106 break;
107 case 0x3f8:
108 odata = 0xaaaaaaaa; debug("ROM signature byte 2");
109 break;
110 case 0x3fc:
111 odata = 0xffffffff; debug("ROM signature byte 3");
112 break;
113 case 0x470:
114 /* 0=nothing, 1=parity */
115 odata = 0x00000000; debug("flags"); break;
116 default:
117 if (relative_addr >= 0x400 && relative_addr < 0x420)
118 odata = d->card_firmware_version[
119 (relative_addr-0x400)/4];
120 else if (relative_addr >= 0x420 &&
121 relative_addr < 0x440)
122 odata = d->card_vendor_name[
123 (relative_addr-0x420)/4];
124 else if (relative_addr >= 0x440 &&
125 relative_addr < 0x460)
126 odata = d->card_module_name[
127 (relative_addr-0x440)/4];
128 else if (relative_addr >= 0x460 &&
129 relative_addr < 0x470)
130 odata = d->card_firmware_type[
131 (relative_addr-0x460)/4];
132 else {
133 debug("?");
134 }
135 }
136
137 /*
138 * If this slot is empty, return an error so that a DBE
139 * exception is caused. (This is the way DECstation operating
140 * systems have to detect the absence of cards in a
141 * TURBOchannel slot.)
142 *
143 * NOTE: The Sprite kernel reads from offsets 0x3e0..0x400
144 * without handling the DBE exception, and both Ultrix and
145 * NetBSD seem to detect the DBE exception using addresses
146 * around offset 0x0 or 0x3c0000. This code seems to work
147 * with all of the those OS kernels:
148 */
149 if (d->card_module_name[0] == ' ') {
150 /* Return no data for empty slot: */
151 odata = 0;
152
153 /* Return DBE exception in some cases: */
154 if (relative_addr < 0x3e0 || relative_addr >= 0x500)
155 return 0;
156 }
157
158 debug(") ]\n");
159 } else {
160 /* debug("[ turbochannel: write to 0x%08lx: 0x%08x ]\n",
161 (long)relative_addr, (int)idata); */
162 }
163
164 if (writeflag == MEM_READ)
165 memory_writemax64(cpu, data, len, odata);
166
167 return 1;
168 }
169
170
171 /*
172 * dev_turbochannel_init():
173 *
174 * This is a generic turbochannel card device. device_name should point
175 * to a string such as "PMAG-BA".
176 *
177 * TODO: When running for example dual-head, maybe the name of each
178 * framebuffer should include the card slot number?
179 */
180 void dev_turbochannel_init(struct machine *machine, struct memory *mem,
181 int slot_nr, uint64_t baseaddr, uint64_t endaddr,
182 char *device_name, int irq)
183 {
184 struct vfb_data *fb;
185 struct turbochannel_data *d;
186 int rom_offset=0x3c0000, rom_length=DEV_TURBOCHANNEL_LEN, rom_skip=0;
187 char *name2;
188 size_t nlen;
189
190 if (device_name == NULL)
191 return;
192
193 if (strlen(device_name) > 8) {
194 fprintf(stderr, "dev_turbochannel_init(): bad device_name\n");
195 exit(1);
196 }
197
198 d = malloc(sizeof(struct turbochannel_data));
199 if (d == NULL) {
200 fprintf(stderr, "out of memory\n");
201 exit(1);
202 }
203 memset(d, 0, sizeof(struct turbochannel_data));
204 d->slot_nr = slot_nr;
205 d->baseaddr = baseaddr;
206 d->endaddr = endaddr;
207 d->irq = irq;
208
209 strlcpy(d->device_name, device_name, DEVICE_NAME_BUFLEN);
210
211 strncpy(d->card_firmware_version, "V5.3a ", CARD_NAME_BUFLEN);
212 strncpy(d->card_vendor_name, "DEC ", CARD_NAME_BUFLEN);
213 strncpy(d->card_firmware_type, "TCF0", CARD_FIRMWARE_BUFLEN);
214
215 memset(d->card_module_name, ' ', 8);
216 memcpy(d->card_module_name, device_name, strlen(device_name));
217
218 /*
219 * According to NetBSD/pmax:
220 *
221 * PMAD-AA: le1 at tc0 slot 2 offset 0x0: address 00:00:00:00:00:00
222 * PMAG-AA: mfb0 at tc0 slot 2 offset 0x0: 1280x1024x8
223 * PMAG-BA: cfb0 at tc0 slot 2 offset 0x0cfb0: 1024x864x8
224 * PMAG-CA: px0 at tc0 slot 2 offset 0x0: 2D, 4x1 stamp, 8 plane
225 * (PMAG-DA,EA,FA,FB are also pixelstamps)
226 * PMAG-DV: xcfb0 at tc0 slot 2 offset 0x0: 1024x768x8
227 * PMAG-JA: "truecolor" in Ultrix
228 * PMAGB-BA: sfb0 at tc0 slot 0 offset 0x0: 0x0x8
229 * PMAGB-VA: sfb0 at tc0 slot 2 offset 0x0: 0x0x8
230 * PMAZ-AA: asc0 at tc0 slot 2 offset 0x0: NCR53C94, 25MHz, SCSI ID 7
231 *
232 * PMAF-FA: fta0 at tc0 slot 0 (fddi network, "DEC", "V1.0b")
233 */
234
235 if (strcmp(device_name, "PMAD-AA")==0) {
236 /* le in NetBSD, Lance ethernet */
237 dev_le_init(machine, mem, baseaddr, 0, 0, irq, DEV_LE_LENGTH);
238 /* One ROM at 0x1c03e0, and one at 0x3c0000. */
239 rom_skip = 0x300;
240 rom_offset = 0x1c0000;
241 rom_length = 0x201000;
242 } else if (strcmp(device_name, "PMAZ-AA")==0) {
243 /* asc in NetBSD, SCSI */
244 dev_asc_init(machine, mem, baseaddr, irq, d,
245 DEV_ASC_DEC, NULL, NULL);
246 rom_offset = 0xc0000;
247 /* There is a copy at 0x0, at least that's where Linux
248 looks for the rom signature */
249 } else if (strcmp(device_name, "PMAG-AA")==0) {
250 /* mfb in NetBSD */
251 fb = dev_fb_init(machine, mem, baseaddr + VFB_MFB_VRAM,
252 VFB_GENERIC, 1280, 1024, 2048, 1024, 8, device_name, 1);
253 /* bt455 = palette, bt431 = cursor */
254 dev_bt455_init(mem, baseaddr + VFB_MFB_BT455, fb);
255 dev_bt431_init(mem, baseaddr + VFB_MFB_BT431, fb, 8);
256 rom_offset = 0;
257 } else if (strcmp(device_name, "PMAG-BA")==0) {
258 /* cfb in NetBSD */
259 fb = dev_fb_init(machine, mem, baseaddr, VFB_GENERIC,
260 1024,864, 1024,1024,8, device_name, 1);
261 dev_bt459_init(machine, mem, baseaddr + VFB_CFB_BT459,
262 baseaddr + 0x300000, fb, 8, irq, BT459_BA);
263 /* ROM at both 0x380000 and 0x3c0000? */
264 rom_offset = 0x380000;
265 rom_length = 0x080000;
266 } else if (strcmp(device_name, "PMAGB-BA")==0) {
267 /* sfb in NetBSD */
268 /* TODO: This is not working with Ultrix yet. */
269 fb = dev_fb_init(machine, mem, baseaddr + SFB_OFFSET_VRAM,
270 VFB_GENERIC, 1280,1024, 1280,1024,8, device_name, 1);
271 dev_sfb_init(machine, mem, baseaddr + SFB_ASIC_OFFSET, fb);
272 /* TODO: the CLEAR doesn't get through, as the address
273 range is already in use by the asic */
274 dev_bt459_init(machine, mem, baseaddr + SFB_OFFSET_BT459,
275 baseaddr + SFB_CLEAR, fb, 8, irq, BT459_BBA);
276 rom_offset = 0x0; /* ? TODO */
277 } else if (strcmp(device_name, "PMAG-CA")==0) {
278 /* px in NetBSD */
279 dev_px_init(machine, mem, baseaddr, DEV_PX_TYPE_PX, irq);
280 rom_offset = 0x3c0000;
281 } else if (strcmp(device_name, "PMAG-DA")==0) {
282 /* pxg in NetBSD */
283 dev_px_init(machine, mem, baseaddr, DEV_PX_TYPE_PXG, irq);
284 rom_offset = 0x3c0000;
285 } else if (strcmp(device_name, "PMAG-EA")==0) {
286 /* pxg+ in NetBSD: TODO (not supported by the kernel
287 I've tried) */
288 fatal("TODO (see dev_turbochannel.c)\n");
289 rom_offset = 0x3c0000;
290 } else if (strcmp(device_name, "PMAG-FA")==0) {
291 /* "pxg+ Turbo" in NetBSD */
292 dev_px_init(machine, mem, baseaddr,
293 DEV_PX_TYPE_PXGPLUSTURBO, irq);
294 rom_offset = 0x3c0000;
295 } else if (strcmp(device_name, "PMAG-DV")==0) {
296 /* xcfb in NetBSD: TODO */
297 fb = dev_fb_init(machine, mem, baseaddr + 0x2000000,
298 VFB_DEC_MAXINE, 0, 0, 0, 0, 0, "PMAG-DV", 1);
299 /* TODO: not yet usable, needs a IMS332 vdac */
300 rom_offset = 0x3c0000;
301 } else if (strcmp(device_name, "PMAG-JA")==0) {
302 /* "Truecolor", mixed 8- and 24-bit */
303 dev_pmagja_init(machine, mem, baseaddr, irq);
304 rom_offset = 0; /* NOTE: 0, not 0x3c0000 */
305 } else if (strcmp(device_name, "PMAG-RO")==0) {
306 /* This works at least B/W in Ultrix, so far. */
307 fb = dev_fb_init(machine, mem, baseaddr + 0x200000,
308 VFB_GENERIC, 1280,1024, 1280,1024, 8, "PMAG-RO", 1);
309 /* TODO: bt463 at offset 0x040000, not bt459 */
310 dev_bt459_init(machine, mem, baseaddr + 0x40000, 0,
311 fb, 8, irq, 0); /* TODO: type */
312 dev_bt431_init(mem, baseaddr + 0x40010, fb, 8); /* cursor */
313 rom_offset = 0x3c0000;
314 } else if (device_name[0] == '\0') {
315 /* If this slot is empty, then occupy the entire
316 4MB slot address range: */
317 rom_offset = 0;
318 rom_length = 4*1048576;
319 } else {
320 fatal("warning: unknown TURBOchannel device name \"%s\"\n",
321 device_name);
322 }
323
324 d->rom_skip = rom_skip;
325
326 nlen = strlen(device_name) + 30;
327 name2 = malloc(nlen);
328 if (name2 == NULL) {
329 fprintf(stderr, "out of memory in dev_turbochannel_init()\n");
330 exit(1);
331 }
332 if (*device_name)
333 snprintf(name2, nlen, "turbochannel [%s]", device_name);
334 else
335 snprintf(name2, nlen, "turbochannel");
336
337 memory_device_register(mem, name2, baseaddr + rom_offset + rom_skip,
338 rom_length-rom_skip, dev_turbochannel_access, d, MEM_DEFAULT, NULL);
339 }
340
  ViewVC Help
Powered by ViewVC 1.1.26