| 1 |
/* |
| 2 |
* Copyright (C) 2003-2006 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 1.46 2006/01/01 13:17:17 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 |
DEVICE_ACCESS(turbochannel) |
| 70 |
{ |
| 71 |
struct turbochannel_data *d = extra; |
| 72 |
uint64_t idata = 0, odata = 0; |
| 73 |
|
| 74 |
if (writeflag == MEM_WRITE) |
| 75 |
idata = memory_readmax64(cpu, data, len); |
| 76 |
|
| 77 |
relative_addr += d->rom_skip; |
| 78 |
|
| 79 |
if (writeflag == MEM_READ) { |
| 80 |
debug("[ turbochannel: read from slot %i addr 0x%08lx (", |
| 81 |
d->slot_nr, (long)relative_addr); |
| 82 |
|
| 83 |
relative_addr &= 0x7fff; |
| 84 |
|
| 85 |
switch (relative_addr) { |
| 86 |
case 0x3e0: |
| 87 |
odata = 0x00000001; debug("ROM width"); |
| 88 |
break; |
| 89 |
case 0x3e4: |
| 90 |
odata = 0x00000004; debug("ROM stride"); |
| 91 |
break; |
| 92 |
case 0x3e8: |
| 93 |
/* 8KB * romsize */ |
| 94 |
odata = 0x00000001; debug("ROM size"); |
| 95 |
break; |
| 96 |
case 0x3ec: |
| 97 |
/* 4MB * slotsize */ |
| 98 |
odata = 0x00000001; debug("slot size"); |
| 99 |
break; |
| 100 |
case 0x3f0: |
| 101 |
odata = 0x55555555; debug("ROM signature byte 0"); |
| 102 |
break; |
| 103 |
case 0x3f4: |
| 104 |
odata = 0x00000000; debug("ROM signature byte 1"); |
| 105 |
break; |
| 106 |
case 0x3f8: |
| 107 |
odata = 0xaaaaaaaa; debug("ROM signature byte 2"); |
| 108 |
break; |
| 109 |
case 0x3fc: |
| 110 |
odata = 0xffffffff; debug("ROM signature byte 3"); |
| 111 |
break; |
| 112 |
case 0x470: |
| 113 |
/* 0=nothing, 1=parity */ |
| 114 |
odata = 0x00000000; debug("flags"); break; |
| 115 |
default: |
| 116 |
if (relative_addr >= 0x400 && relative_addr < 0x420) |
| 117 |
odata = d->card_firmware_version[ |
| 118 |
(relative_addr-0x400)/4]; |
| 119 |
else if (relative_addr >= 0x420 && |
| 120 |
relative_addr < 0x440) |
| 121 |
odata = d->card_vendor_name[ |
| 122 |
(relative_addr-0x420)/4]; |
| 123 |
else if (relative_addr >= 0x440 && |
| 124 |
relative_addr < 0x460) |
| 125 |
odata = d->card_module_name[ |
| 126 |
(relative_addr-0x440)/4]; |
| 127 |
else if (relative_addr >= 0x460 && |
| 128 |
relative_addr < 0x470) |
| 129 |
odata = d->card_firmware_type[ |
| 130 |
(relative_addr-0x460)/4]; |
| 131 |
else { |
| 132 |
debug("?"); |
| 133 |
} |
| 134 |
} |
| 135 |
|
| 136 |
/* |
| 137 |
* If this slot is empty, return an error so that a DBE |
| 138 |
* exception is caused. (This is the way DECstation operating |
| 139 |
* systems have to detect the absence of cards in a |
| 140 |
* TURBOchannel slot.) |
| 141 |
* |
| 142 |
* NOTE: The Sprite kernel reads from offsets 0x3e0..0x400 |
| 143 |
* without handling the DBE exception, and both Ultrix and |
| 144 |
* NetBSD seem to detect the DBE exception using addresses |
| 145 |
* around offset 0x0 or 0x3c0000. This code seems to work |
| 146 |
* with all of the those OS kernels: |
| 147 |
*/ |
| 148 |
if (d->card_module_name[0] == ' ') { |
| 149 |
/* Return no data for empty slot: */ |
| 150 |
odata = 0; |
| 151 |
|
| 152 |
/* Return DBE exception in some cases: */ |
| 153 |
if (relative_addr < 0x3e0 || relative_addr >= 0x500) |
| 154 |
return 0; |
| 155 |
} |
| 156 |
|
| 157 |
debug(") ]\n"); |
| 158 |
} else { |
| 159 |
/* debug("[ turbochannel: write to 0x%08lx: 0x%08x ]\n", |
| 160 |
(long)relative_addr, (int)idata); */ |
| 161 |
} |
| 162 |
|
| 163 |
if (writeflag == MEM_READ) |
| 164 |
memory_writemax64(cpu, data, len, odata); |
| 165 |
|
| 166 |
return 1; |
| 167 |
} |
| 168 |
|
| 169 |
|
| 170 |
/* |
| 171 |
* dev_turbochannel_init(): |
| 172 |
* |
| 173 |
* This is a generic turbochannel card device. device_name should point |
| 174 |
* to a string such as "PMAG-BA". |
| 175 |
* |
| 176 |
* TODO: When running for example dual-head, maybe the name of each |
| 177 |
* framebuffer should include the card slot number? |
| 178 |
*/ |
| 179 |
void dev_turbochannel_init(struct machine *machine, struct memory *mem, |
| 180 |
int slot_nr, uint64_t baseaddr, uint64_t endaddr, |
| 181 |
char *device_name, int irq) |
| 182 |
{ |
| 183 |
struct vfb_data *fb; |
| 184 |
struct turbochannel_data *d; |
| 185 |
int rom_offset=0x3c0000, rom_length=DEV_TURBOCHANNEL_LEN, rom_skip=0; |
| 186 |
char *name2; |
| 187 |
size_t nlen; |
| 188 |
|
| 189 |
if (device_name == NULL) |
| 190 |
return; |
| 191 |
|
| 192 |
if (strlen(device_name) > 8) { |
| 193 |
fprintf(stderr, "dev_turbochannel_init(): bad device_name\n"); |
| 194 |
exit(1); |
| 195 |
} |
| 196 |
|
| 197 |
d = malloc(sizeof(struct turbochannel_data)); |
| 198 |
if (d == NULL) { |
| 199 |
fprintf(stderr, "out of memory\n"); |
| 200 |
exit(1); |
| 201 |
} |
| 202 |
memset(d, 0, sizeof(struct turbochannel_data)); |
| 203 |
d->slot_nr = slot_nr; |
| 204 |
d->baseaddr = baseaddr; |
| 205 |
d->endaddr = endaddr; |
| 206 |
d->irq = irq; |
| 207 |
|
| 208 |
strlcpy(d->device_name, device_name, DEVICE_NAME_BUFLEN); |
| 209 |
|
| 210 |
strncpy(d->card_firmware_version, "V5.3a ", CARD_NAME_BUFLEN); |
| 211 |
strncpy(d->card_vendor_name, "DEC ", CARD_NAME_BUFLEN); |
| 212 |
strncpy(d->card_firmware_type, "TCF0", CARD_FIRMWARE_BUFLEN); |
| 213 |
|
| 214 |
memset(d->card_module_name, ' ', 8); |
| 215 |
memcpy(d->card_module_name, device_name, strlen(device_name)); |
| 216 |
|
| 217 |
/* |
| 218 |
* According to NetBSD/pmax: |
| 219 |
* |
| 220 |
* PMAD-AA: le1 at tc0 slot 2 offset 0x0: address 00:00:00:00:00:00 |
| 221 |
* PMAG-AA: mfb0 at tc0 slot 2 offset 0x0: 1280x1024x8 |
| 222 |
* PMAG-BA: cfb0 at tc0 slot 2 offset 0x0cfb0: 1024x864x8 |
| 223 |
* PMAG-CA: px0 at tc0 slot 2 offset 0x0: 2D, 4x1 stamp, 8 plane |
| 224 |
* (PMAG-DA,EA,FA,FB are also pixelstamps) |
| 225 |
* PMAG-DV: xcfb0 at tc0 slot 2 offset 0x0: 1024x768x8 |
| 226 |
* PMAG-JA: "truecolor" in Ultrix |
| 227 |
* PMAGB-BA: sfb0 at tc0 slot 0 offset 0x0: 0x0x8 |
| 228 |
* PMAGB-VA: sfb0 at tc0 slot 2 offset 0x0: 0x0x8 |
| 229 |
* PMAZ-AA: asc0 at tc0 slot 2 offset 0x0: NCR53C94, 25MHz, SCSI ID 7 |
| 230 |
* |
| 231 |
* PMAF-FA: fta0 at tc0 slot 0 (fddi network, "DEC", "V1.0b") |
| 232 |
*/ |
| 233 |
|
| 234 |
if (strcmp(device_name, "PMAD-AA")==0) { |
| 235 |
/* le in NetBSD, Lance ethernet */ |
| 236 |
dev_le_init(machine, mem, baseaddr, 0, 0, irq, DEV_LE_LENGTH); |
| 237 |
/* One ROM at 0x1c03e0, and one at 0x3c0000. */ |
| 238 |
rom_skip = 0x300; |
| 239 |
rom_offset = 0x1c0000; |
| 240 |
rom_length = 0x201000; |
| 241 |
} else if (strcmp(device_name, "PMAZ-AA")==0) { |
| 242 |
/* asc in NetBSD, SCSI */ |
| 243 |
dev_asc_init(machine, mem, baseaddr, irq, d, |
| 244 |
DEV_ASC_DEC, NULL, NULL); |
| 245 |
rom_offset = 0xc0000; |
| 246 |
/* There is a copy at 0x0, at least that's where Linux |
| 247 |
looks for the rom signature */ |
| 248 |
} else if (strcmp(device_name, "PMAG-AA")==0) { |
| 249 |
/* mfb in NetBSD */ |
| 250 |
fb = dev_fb_init(machine, mem, baseaddr + VFB_MFB_VRAM, |
| 251 |
VFB_GENERIC, 1280, 1024, 2048, 1024, 8, device_name); |
| 252 |
/* bt455 = palette, bt431 = cursor */ |
| 253 |
dev_bt455_init(mem, baseaddr + VFB_MFB_BT455, fb); |
| 254 |
dev_bt431_init(mem, baseaddr + VFB_MFB_BT431, fb, 8); |
| 255 |
rom_offset = 0; |
| 256 |
} else if (strcmp(device_name, "PMAG-BA")==0) { |
| 257 |
/* cfb in NetBSD */ |
| 258 |
fb = dev_fb_init(machine, mem, baseaddr, VFB_GENERIC, |
| 259 |
1024,864, 1024,1024,8, device_name); |
| 260 |
dev_bt459_init(machine, mem, baseaddr + VFB_CFB_BT459, |
| 261 |
baseaddr + 0x300000, fb, 8, irq, BT459_BA); |
| 262 |
/* ROM at both 0x380000 and 0x3c0000? */ |
| 263 |
rom_offset = 0x380000; |
| 264 |
rom_length = 0x080000; |
| 265 |
} else if (strcmp(device_name, "PMAGB-BA")==0) { |
| 266 |
/* sfb in NetBSD */ |
| 267 |
/* TODO: This is not working with Ultrix yet. */ |
| 268 |
fb = dev_fb_init(machine, mem, baseaddr + SFB_OFFSET_VRAM, |
| 269 |
VFB_GENERIC, 1280,1024, 1280,1024,8, device_name); |
| 270 |
dev_sfb_init(machine, mem, baseaddr + SFB_ASIC_OFFSET, fb); |
| 271 |
/* TODO: the CLEAR doesn't get through, as the address |
| 272 |
range is already in use by the asic */ |
| 273 |
dev_bt459_init(machine, mem, baseaddr + SFB_OFFSET_BT459, |
| 274 |
baseaddr + SFB_CLEAR, fb, 8, irq, BT459_BBA); |
| 275 |
rom_offset = 0x0; /* ? TODO */ |
| 276 |
} else if (strcmp(device_name, "PMAG-CA")==0) { |
| 277 |
/* px in NetBSD */ |
| 278 |
dev_px_init(machine, mem, baseaddr, DEV_PX_TYPE_PX, irq); |
| 279 |
rom_offset = 0x3c0000; |
| 280 |
} else if (strcmp(device_name, "PMAG-DA")==0) { |
| 281 |
/* pxg in NetBSD */ |
| 282 |
dev_px_init(machine, mem, baseaddr, DEV_PX_TYPE_PXG, irq); |
| 283 |
rom_offset = 0x3c0000; |
| 284 |
} else if (strcmp(device_name, "PMAG-EA")==0) { |
| 285 |
/* pxg+ in NetBSD: TODO (not supported by the kernel |
| 286 |
I've tried) */ |
| 287 |
fatal("TODO (see dev_turbochannel.c)\n"); |
| 288 |
rom_offset = 0x3c0000; |
| 289 |
} else if (strcmp(device_name, "PMAG-FA")==0) { |
| 290 |
/* "pxg+ Turbo" in NetBSD */ |
| 291 |
dev_px_init(machine, mem, baseaddr, |
| 292 |
DEV_PX_TYPE_PXGPLUSTURBO, irq); |
| 293 |
rom_offset = 0x3c0000; |
| 294 |
} else if (strcmp(device_name, "PMAG-DV")==0) { |
| 295 |
/* xcfb in NetBSD: TODO */ |
| 296 |
fb = dev_fb_init(machine, mem, baseaddr + 0x2000000, |
| 297 |
VFB_DEC_MAXINE, 0, 0, 0, 0, 0, "PMAG-DV"); |
| 298 |
/* TODO: not yet usable, needs a IMS332 vdac */ |
| 299 |
rom_offset = 0x3c0000; |
| 300 |
} else if (strcmp(device_name, "PMAG-JA")==0) { |
| 301 |
/* "Truecolor", mixed 8- and 24-bit */ |
| 302 |
dev_pmagja_init(machine, mem, baseaddr, irq); |
| 303 |
rom_offset = 0; /* NOTE: 0, not 0x3c0000 */ |
| 304 |
} else if (strcmp(device_name, "PMAG-RO")==0) { |
| 305 |
/* This works at least B/W in Ultrix, so far. */ |
| 306 |
fb = dev_fb_init(machine, mem, baseaddr + 0x200000, |
| 307 |
VFB_GENERIC, 1280,1024, 1280,1024, 8, "PMAG-RO"); |
| 308 |
/* TODO: bt463 at offset 0x040000, not bt459 */ |
| 309 |
dev_bt459_init(machine, mem, baseaddr + 0x40000, 0, |
| 310 |
fb, 8, irq, 0); /* TODO: type */ |
| 311 |
dev_bt431_init(mem, baseaddr + 0x40010, fb, 8); /* cursor */ |
| 312 |
rom_offset = 0x3c0000; |
| 313 |
} else if (device_name[0] == '\0') { |
| 314 |
/* If this slot is empty, then occupy the entire |
| 315 |
4MB slot address range: */ |
| 316 |
rom_offset = 0; |
| 317 |
rom_length = 4*1048576; |
| 318 |
} else { |
| 319 |
fatal("warning: unknown TURBOchannel device name \"%s\"\n", |
| 320 |
device_name); |
| 321 |
} |
| 322 |
|
| 323 |
d->rom_skip = rom_skip; |
| 324 |
|
| 325 |
nlen = strlen(device_name) + 30; |
| 326 |
name2 = malloc(nlen); |
| 327 |
if (name2 == NULL) { |
| 328 |
fprintf(stderr, "out of memory in dev_turbochannel_init()\n"); |
| 329 |
exit(1); |
| 330 |
} |
| 331 |
if (*device_name) |
| 332 |
snprintf(name2, nlen, "turbochannel [%s]", device_name); |
| 333 |
else |
| 334 |
snprintf(name2, nlen, "turbochannel"); |
| 335 |
|
| 336 |
memory_device_register(mem, name2, baseaddr + rom_offset + rom_skip, |
| 337 |
rom_length-rom_skip, dev_turbochannel_access, d, DM_DEFAULT, NULL); |
| 338 |
} |
| 339 |
|
Parent Directory
| 
Revision Log