/[gxemul]/trunk/src/devices/dev_turbochannel.c
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Annotation of /trunk/src/devices/dev_turbochannel.c

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Revision 10 - (hide annotations)
Mon Oct 8 16:18:27 2007 UTC (16 years, 6 months ago) by dpavlin
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++ 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 dpavlin 4 /*
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 dpavlin 10 * $Id: dev_turbochannel.c,v 1.42 2005/06/26 11:43:48 debug Exp $
29 dpavlin 4 *
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 dpavlin 10 #define DEVICE_NAME_BUFLEN 9
45     #define CARD_NAME_BUFLEN 9
46     #define CARD_FIRMWARE_BUFLEN 5
47    
48 dpavlin 4 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 dpavlin 10 char device_name[DEVICE_NAME_BUFLEN]; /* NUL-terminated */
57 dpavlin 4
58     /* These should be terminated with spaces */
59 dpavlin 10 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 dpavlin 4 };
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 dpavlin 10 int rom_offset=0x3c0000, rom_length=DEV_TURBOCHANNEL_LEN, rom_skip=0;
187 dpavlin 4 char *name2;
188 dpavlin 10 size_t nlen;
189 dpavlin 4
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 dpavlin 10 strlcpy(d->device_name, device_name, DEVICE_NAME_BUFLEN);
210 dpavlin 4
211 dpavlin 10 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 dpavlin 4
215     memset(d->card_module_name, ' ', 8);
216 dpavlin 10 memcpy(d->card_module_name, device_name, strlen(device_name));
217 dpavlin 4
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 dpavlin 10 nlen = strlen(device_name) + 30;
327     name2 = malloc(nlen);
328 dpavlin 4 if (name2 == NULL) {
329     fprintf(stderr, "out of memory in dev_turbochannel_init()\n");
330     exit(1);
331     }
332     if (*device_name)
333 dpavlin 10 snprintf(name2, nlen, "turbochannel [%s]", device_name);
334 dpavlin 4 else
335 dpavlin 10 snprintf(name2, nlen, "turbochannel");
336 dpavlin 4
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    
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