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Commit | Line | Data |
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8977f3c1 | 1 | /* |
890fa6be | 2 | * QEMU Floppy disk emulator (Intel 82078) |
5fafdf24 | 3 | * |
3ccacc4a | 4 | * Copyright (c) 2003, 2007 Jocelyn Mayer |
bcc4e41f | 5 | * Copyright (c) 2008 Hervé Poussineau |
5fafdf24 | 6 | * |
8977f3c1 FB |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
23 | * THE SOFTWARE. | |
24 | */ | |
e80cfcfc FB |
25 | /* |
26 | * The controller is used in Sun4m systems in a slightly different | |
27 | * way. There are changes in DOR register and DMA is not available. | |
28 | */ | |
f64ab228 | 29 | |
80c71a24 | 30 | #include "qemu/osdep.h" |
0d09e41a | 31 | #include "hw/block/fdc.h" |
da34e65c | 32 | #include "qapi/error.h" |
1de7afc9 PB |
33 | #include "qemu/error-report.h" |
34 | #include "qemu/timer.h" | |
2055dbc1 | 35 | #include "hw/acpi/aml-build.h" |
64552b6b | 36 | #include "hw/irq.h" |
0d09e41a | 37 | #include "hw/isa/isa.h" |
a27bd6c7 | 38 | #include "hw/qdev-properties.h" |
83c9f4ca | 39 | #include "hw/sysbus.h" |
d6454270 | 40 | #include "migration/vmstate.h" |
a92bd191 | 41 | #include "hw/block/block.h" |
fa1d36df | 42 | #include "sysemu/block-backend.h" |
9c17d615 PB |
43 | #include "sysemu/blockdev.h" |
44 | #include "sysemu/sysemu.h" | |
1de7afc9 | 45 | #include "qemu/log.h" |
db725815 | 46 | #include "qemu/main-loop.h" |
0b8fa32f | 47 | #include "qemu/module.h" |
1a5396d9 | 48 | #include "trace.h" |
8977f3c1 FB |
49 | |
50 | /********************************************************/ | |
51 | /* debug Floppy devices */ | |
8977f3c1 | 52 | |
c691320f JS |
53 | #define DEBUG_FLOPPY 0 |
54 | ||
001faf32 | 55 | #define FLOPPY_DPRINTF(fmt, ...) \ |
c691320f JS |
56 | do { \ |
57 | if (DEBUG_FLOPPY) { \ | |
58 | fprintf(stderr, "FLOPPY: " fmt , ## __VA_ARGS__); \ | |
59 | } \ | |
60 | } while (0) | |
8977f3c1 | 61 | |
51e6e90e KW |
62 | |
63 | /********************************************************/ | |
64 | /* qdev floppy bus */ | |
65 | ||
66 | #define TYPE_FLOPPY_BUS "floppy-bus" | |
67 | #define FLOPPY_BUS(obj) OBJECT_CHECK(FloppyBus, (obj), TYPE_FLOPPY_BUS) | |
68 | ||
69 | typedef struct FDCtrl FDCtrl; | |
394ea2ca KW |
70 | typedef struct FDrive FDrive; |
71 | static FDrive *get_drv(FDCtrl *fdctrl, int unit); | |
51e6e90e KW |
72 | |
73 | typedef struct FloppyBus { | |
74 | BusState bus; | |
75 | FDCtrl *fdc; | |
76 | } FloppyBus; | |
77 | ||
78 | static const TypeInfo floppy_bus_info = { | |
79 | .name = TYPE_FLOPPY_BUS, | |
80 | .parent = TYPE_BUS, | |
81 | .instance_size = sizeof(FloppyBus), | |
82 | }; | |
83 | ||
84 | static void floppy_bus_create(FDCtrl *fdc, FloppyBus *bus, DeviceState *dev) | |
85 | { | |
86 | qbus_create_inplace(bus, sizeof(FloppyBus), TYPE_FLOPPY_BUS, dev, NULL); | |
87 | bus->fdc = fdc; | |
88 | } | |
89 | ||
90 | ||
8977f3c1 FB |
91 | /********************************************************/ |
92 | /* Floppy drive emulation */ | |
93 | ||
61a8d649 MA |
94 | typedef enum FDriveRate { |
95 | FDRIVE_RATE_500K = 0x00, /* 500 Kbps */ | |
96 | FDRIVE_RATE_300K = 0x01, /* 300 Kbps */ | |
97 | FDRIVE_RATE_250K = 0x02, /* 250 Kbps */ | |
98 | FDRIVE_RATE_1M = 0x03, /* 1 Mbps */ | |
99 | } FDriveRate; | |
100 | ||
109c17bc JS |
101 | typedef enum FDriveSize { |
102 | FDRIVE_SIZE_UNKNOWN, | |
103 | FDRIVE_SIZE_350, | |
104 | FDRIVE_SIZE_525, | |
105 | } FDriveSize; | |
106 | ||
61a8d649 | 107 | typedef struct FDFormat { |
2da44dd0 | 108 | FloppyDriveType drive; |
61a8d649 MA |
109 | uint8_t last_sect; |
110 | uint8_t max_track; | |
111 | uint8_t max_head; | |
112 | FDriveRate rate; | |
113 | } FDFormat; | |
114 | ||
109c17bc JS |
115 | /* In many cases, the total sector size of a format is enough to uniquely |
116 | * identify it. However, there are some total sector collisions between | |
117 | * formats of different physical size, and these are noted below by | |
118 | * highlighting the total sector size for entries with collisions. */ | |
61a8d649 MA |
119 | static const FDFormat fd_formats[] = { |
120 | /* First entry is default format */ | |
121 | /* 1.44 MB 3"1/2 floppy disks */ | |
109c17bc JS |
122 | { FLOPPY_DRIVE_TYPE_144, 18, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 2880 */ |
123 | { FLOPPY_DRIVE_TYPE_144, 20, 80, 1, FDRIVE_RATE_500K, }, /* 3.5" 3200 */ | |
2da44dd0 JS |
124 | { FLOPPY_DRIVE_TYPE_144, 21, 80, 1, FDRIVE_RATE_500K, }, |
125 | { FLOPPY_DRIVE_TYPE_144, 21, 82, 1, FDRIVE_RATE_500K, }, | |
126 | { FLOPPY_DRIVE_TYPE_144, 21, 83, 1, FDRIVE_RATE_500K, }, | |
127 | { FLOPPY_DRIVE_TYPE_144, 22, 80, 1, FDRIVE_RATE_500K, }, | |
128 | { FLOPPY_DRIVE_TYPE_144, 23, 80, 1, FDRIVE_RATE_500K, }, | |
129 | { FLOPPY_DRIVE_TYPE_144, 24, 80, 1, FDRIVE_RATE_500K, }, | |
61a8d649 | 130 | /* 2.88 MB 3"1/2 floppy disks */ |
2da44dd0 JS |
131 | { FLOPPY_DRIVE_TYPE_288, 36, 80, 1, FDRIVE_RATE_1M, }, |
132 | { FLOPPY_DRIVE_TYPE_288, 39, 80, 1, FDRIVE_RATE_1M, }, | |
133 | { FLOPPY_DRIVE_TYPE_288, 40, 80, 1, FDRIVE_RATE_1M, }, | |
134 | { FLOPPY_DRIVE_TYPE_288, 44, 80, 1, FDRIVE_RATE_1M, }, | |
135 | { FLOPPY_DRIVE_TYPE_288, 48, 80, 1, FDRIVE_RATE_1M, }, | |
61a8d649 | 136 | /* 720 kB 3"1/2 floppy disks */ |
109c17bc | 137 | { FLOPPY_DRIVE_TYPE_144, 9, 80, 1, FDRIVE_RATE_250K, }, /* 3.5" 1440 */ |
2da44dd0 JS |
138 | { FLOPPY_DRIVE_TYPE_144, 10, 80, 1, FDRIVE_RATE_250K, }, |
139 | { FLOPPY_DRIVE_TYPE_144, 10, 82, 1, FDRIVE_RATE_250K, }, | |
140 | { FLOPPY_DRIVE_TYPE_144, 10, 83, 1, FDRIVE_RATE_250K, }, | |
141 | { FLOPPY_DRIVE_TYPE_144, 13, 80, 1, FDRIVE_RATE_250K, }, | |
142 | { FLOPPY_DRIVE_TYPE_144, 14, 80, 1, FDRIVE_RATE_250K, }, | |
61a8d649 | 143 | /* 1.2 MB 5"1/4 floppy disks */ |
2da44dd0 | 144 | { FLOPPY_DRIVE_TYPE_120, 15, 80, 1, FDRIVE_RATE_500K, }, |
109c17bc | 145 | { FLOPPY_DRIVE_TYPE_120, 18, 80, 1, FDRIVE_RATE_500K, }, /* 5.25" 2880 */ |
2da44dd0 JS |
146 | { FLOPPY_DRIVE_TYPE_120, 18, 82, 1, FDRIVE_RATE_500K, }, |
147 | { FLOPPY_DRIVE_TYPE_120, 18, 83, 1, FDRIVE_RATE_500K, }, | |
109c17bc | 148 | { FLOPPY_DRIVE_TYPE_120, 20, 80, 1, FDRIVE_RATE_500K, }, /* 5.25" 3200 */ |
61a8d649 | 149 | /* 720 kB 5"1/4 floppy disks */ |
109c17bc | 150 | { FLOPPY_DRIVE_TYPE_120, 9, 80, 1, FDRIVE_RATE_250K, }, /* 5.25" 1440 */ |
2da44dd0 | 151 | { FLOPPY_DRIVE_TYPE_120, 11, 80, 1, FDRIVE_RATE_250K, }, |
61a8d649 | 152 | /* 360 kB 5"1/4 floppy disks */ |
109c17bc | 153 | { FLOPPY_DRIVE_TYPE_120, 9, 40, 1, FDRIVE_RATE_300K, }, /* 5.25" 720 */ |
2da44dd0 JS |
154 | { FLOPPY_DRIVE_TYPE_120, 9, 40, 0, FDRIVE_RATE_300K, }, |
155 | { FLOPPY_DRIVE_TYPE_120, 10, 41, 1, FDRIVE_RATE_300K, }, | |
156 | { FLOPPY_DRIVE_TYPE_120, 10, 42, 1, FDRIVE_RATE_300K, }, | |
61a8d649 | 157 | /* 320 kB 5"1/4 floppy disks */ |
2da44dd0 JS |
158 | { FLOPPY_DRIVE_TYPE_120, 8, 40, 1, FDRIVE_RATE_250K, }, |
159 | { FLOPPY_DRIVE_TYPE_120, 8, 40, 0, FDRIVE_RATE_250K, }, | |
61a8d649 | 160 | /* 360 kB must match 5"1/4 better than 3"1/2... */ |
109c17bc | 161 | { FLOPPY_DRIVE_TYPE_144, 9, 80, 0, FDRIVE_RATE_250K, }, /* 3.5" 720 */ |
61a8d649 | 162 | /* end */ |
2da44dd0 | 163 | { FLOPPY_DRIVE_TYPE_NONE, -1, -1, 0, 0, }, |
61a8d649 MA |
164 | }; |
165 | ||
109c17bc JS |
166 | static FDriveSize drive_size(FloppyDriveType drive) |
167 | { | |
168 | switch (drive) { | |
169 | case FLOPPY_DRIVE_TYPE_120: | |
170 | return FDRIVE_SIZE_525; | |
171 | case FLOPPY_DRIVE_TYPE_144: | |
172 | case FLOPPY_DRIVE_TYPE_288: | |
173 | return FDRIVE_SIZE_350; | |
174 | default: | |
175 | return FDRIVE_SIZE_UNKNOWN; | |
176 | } | |
177 | } | |
178 | ||
cefec4f5 BS |
179 | #define GET_CUR_DRV(fdctrl) ((fdctrl)->cur_drv) |
180 | #define SET_CUR_DRV(fdctrl, drive) ((fdctrl)->cur_drv = (drive)) | |
181 | ||
8977f3c1 | 182 | /* Will always be a fixed parameter for us */ |
f2d81b33 BS |
183 | #define FD_SECTOR_LEN 512 |
184 | #define FD_SECTOR_SC 2 /* Sector size code */ | |
185 | #define FD_RESET_SENSEI_COUNT 4 /* Number of sense interrupts on RESET */ | |
8977f3c1 FB |
186 | |
187 | /* Floppy disk drive emulation */ | |
5c02c033 | 188 | typedef enum FDiskFlags { |
baca51fa | 189 | FDISK_DBL_SIDES = 0x01, |
5c02c033 | 190 | } FDiskFlags; |
baca51fa | 191 | |
394ea2ca | 192 | struct FDrive { |
844f65d6 | 193 | FDCtrl *fdctrl; |
4be74634 | 194 | BlockBackend *blk; |
a17c17a2 | 195 | BlockConf *conf; |
8977f3c1 | 196 | /* Drive status */ |
2da44dd0 | 197 | FloppyDriveType drive; /* CMOS drive type */ |
8977f3c1 | 198 | uint8_t perpendicular; /* 2.88 MB access mode */ |
8977f3c1 FB |
199 | /* Position */ |
200 | uint8_t head; | |
201 | uint8_t track; | |
202 | uint8_t sect; | |
8977f3c1 | 203 | /* Media */ |
16c1e3ec | 204 | FloppyDriveType disk; /* Current disk type */ |
5c02c033 | 205 | FDiskFlags flags; |
8977f3c1 FB |
206 | uint8_t last_sect; /* Nb sector per track */ |
207 | uint8_t max_track; /* Nb of tracks */ | |
baca51fa | 208 | uint16_t bps; /* Bytes per sector */ |
8977f3c1 | 209 | uint8_t ro; /* Is read-only */ |
7d905f71 | 210 | uint8_t media_changed; /* Is media changed */ |
844f65d6 | 211 | uint8_t media_rate; /* Data rate of medium */ |
2e1280e8 | 212 | |
d5d47efc | 213 | bool media_validated; /* Have we validated the media? */ |
394ea2ca | 214 | }; |
8977f3c1 | 215 | |
a73275dd JS |
216 | |
217 | static FloppyDriveType get_fallback_drive_type(FDrive *drv); | |
218 | ||
fd9bdbd3 JS |
219 | /* Hack: FD_SEEK is expected to work on empty drives. However, QEMU |
220 | * currently goes through some pains to keep seeks within the bounds | |
221 | * established by last_sect and max_track. Correcting this is difficult, | |
222 | * as refactoring FDC code tends to expose nasty bugs in the Linux kernel. | |
223 | * | |
224 | * For now: allow empty drives to have large bounds so we can seek around, | |
225 | * with the understanding that when a diskette is inserted, the bounds will | |
226 | * properly tighten to match the geometry of that inserted medium. | |
227 | */ | |
228 | static void fd_empty_seek_hack(FDrive *drv) | |
229 | { | |
230 | drv->last_sect = 0xFF; | |
231 | drv->max_track = 0xFF; | |
232 | } | |
233 | ||
5c02c033 | 234 | static void fd_init(FDrive *drv) |
8977f3c1 FB |
235 | { |
236 | /* Drive */ | |
8977f3c1 | 237 | drv->perpendicular = 0; |
8977f3c1 | 238 | /* Disk */ |
16c1e3ec | 239 | drv->disk = FLOPPY_DRIVE_TYPE_NONE; |
baca51fa | 240 | drv->last_sect = 0; |
8977f3c1 | 241 | drv->max_track = 0; |
d5d47efc JS |
242 | drv->ro = true; |
243 | drv->media_changed = 1; | |
8977f3c1 FB |
244 | } |
245 | ||
08388273 HP |
246 | #define NUM_SIDES(drv) ((drv)->flags & FDISK_DBL_SIDES ? 2 : 1) |
247 | ||
7859cb98 | 248 | static int fd_sector_calc(uint8_t head, uint8_t track, uint8_t sect, |
08388273 | 249 | uint8_t last_sect, uint8_t num_sides) |
8977f3c1 | 250 | { |
08388273 | 251 | return (((track * num_sides) + head) * last_sect) + sect - 1; |
8977f3c1 FB |
252 | } |
253 | ||
254 | /* Returns current position, in sectors, for given drive */ | |
5c02c033 | 255 | static int fd_sector(FDrive *drv) |
8977f3c1 | 256 | { |
08388273 HP |
257 | return fd_sector_calc(drv->head, drv->track, drv->sect, drv->last_sect, |
258 | NUM_SIDES(drv)); | |
8977f3c1 FB |
259 | } |
260 | ||
a7a5b7c0 EB |
261 | /* Returns current position, in bytes, for given drive */ |
262 | static int fd_offset(FDrive *drv) | |
263 | { | |
264 | g_assert(fd_sector(drv) < INT_MAX >> BDRV_SECTOR_BITS); | |
265 | return fd_sector(drv) << BDRV_SECTOR_BITS; | |
266 | } | |
267 | ||
77370520 BS |
268 | /* Seek to a new position: |
269 | * returns 0 if already on right track | |
270 | * returns 1 if track changed | |
271 | * returns 2 if track is invalid | |
272 | * returns 3 if sector is invalid | |
273 | * returns 4 if seek is disabled | |
274 | */ | |
5c02c033 BS |
275 | static int fd_seek(FDrive *drv, uint8_t head, uint8_t track, uint8_t sect, |
276 | int enable_seek) | |
8977f3c1 FB |
277 | { |
278 | uint32_t sector; | |
baca51fa FB |
279 | int ret; |
280 | ||
281 | if (track > drv->max_track || | |
4f431960 | 282 | (head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) { |
ed5fd2cc FB |
283 | FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n", |
284 | head, track, sect, 1, | |
285 | (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1, | |
286 | drv->max_track, drv->last_sect); | |
8977f3c1 FB |
287 | return 2; |
288 | } | |
289 | if (sect > drv->last_sect) { | |
ed5fd2cc FB |
290 | FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n", |
291 | head, track, sect, 1, | |
292 | (drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1, | |
293 | drv->max_track, drv->last_sect); | |
8977f3c1 FB |
294 | return 3; |
295 | } | |
08388273 | 296 | sector = fd_sector_calc(head, track, sect, drv->last_sect, NUM_SIDES(drv)); |
baca51fa | 297 | ret = 0; |
8977f3c1 FB |
298 | if (sector != fd_sector(drv)) { |
299 | #if 0 | |
300 | if (!enable_seek) { | |
cced7a13 BS |
301 | FLOPPY_DPRINTF("error: no implicit seek %d %02x %02x" |
302 | " (max=%d %02x %02x)\n", | |
303 | head, track, sect, 1, drv->max_track, | |
304 | drv->last_sect); | |
8977f3c1 FB |
305 | return 4; |
306 | } | |
307 | #endif | |
308 | drv->head = head; | |
6be01b1e | 309 | if (drv->track != track) { |
abb3e55b | 310 | if (drv->blk != NULL && blk_is_inserted(drv->blk)) { |
6be01b1e PH |
311 | drv->media_changed = 0; |
312 | } | |
4f431960 | 313 | ret = 1; |
6be01b1e | 314 | } |
8977f3c1 FB |
315 | drv->track = track; |
316 | drv->sect = sect; | |
8977f3c1 FB |
317 | } |
318 | ||
abb3e55b | 319 | if (drv->blk == NULL || !blk_is_inserted(drv->blk)) { |
c52acf60 PH |
320 | ret = 2; |
321 | } | |
322 | ||
baca51fa | 323 | return ret; |
8977f3c1 FB |
324 | } |
325 | ||
326 | /* Set drive back to track 0 */ | |
5c02c033 | 327 | static void fd_recalibrate(FDrive *drv) |
8977f3c1 FB |
328 | { |
329 | FLOPPY_DPRINTF("recalibrate\n"); | |
6be01b1e | 330 | fd_seek(drv, 0, 0, 1, 1); |
8977f3c1 FB |
331 | } |
332 | ||
d5d47efc JS |
333 | /** |
334 | * Determine geometry based on inserted diskette. | |
335 | * Will not operate on an empty drive. | |
336 | * | |
337 | * @return: 0 on success, -1 if the drive is empty. | |
338 | */ | |
339 | static int pick_geometry(FDrive *drv) | |
9a972233 | 340 | { |
21862658 | 341 | BlockBackend *blk = drv->blk; |
9a972233 JS |
342 | const FDFormat *parse; |
343 | uint64_t nb_sectors, size; | |
f31937aa JS |
344 | int i; |
345 | int match, size_match, type_match; | |
346 | bool magic = drv->drive == FLOPPY_DRIVE_TYPE_AUTO; | |
9a972233 | 347 | |
d5d47efc | 348 | /* We can only pick a geometry if we have a diskette. */ |
abb3e55b HR |
349 | if (!drv->blk || !blk_is_inserted(drv->blk) || |
350 | drv->drive == FLOPPY_DRIVE_TYPE_NONE) | |
351 | { | |
d5d47efc JS |
352 | return -1; |
353 | } | |
354 | ||
f31937aa JS |
355 | /* We need to determine the likely geometry of the inserted medium. |
356 | * In order of preference, we look for: | |
357 | * (1) The same drive type and number of sectors, | |
358 | * (2) The same diskette size and number of sectors, | |
359 | * (3) The same drive type. | |
360 | * | |
361 | * In all cases, matches that occur higher in the drive table will take | |
362 | * precedence over matches that occur later in the table. | |
363 | */ | |
9a972233 | 364 | blk_get_geometry(blk, &nb_sectors); |
f31937aa | 365 | match = size_match = type_match = -1; |
9a972233 JS |
366 | for (i = 0; ; i++) { |
367 | parse = &fd_formats[i]; | |
2da44dd0 | 368 | if (parse->drive == FLOPPY_DRIVE_TYPE_NONE) { |
9a972233 JS |
369 | break; |
370 | } | |
f31937aa JS |
371 | size = (parse->max_head + 1) * parse->max_track * parse->last_sect; |
372 | if (nb_sectors == size) { | |
373 | if (magic || parse->drive == drv->drive) { | |
374 | /* (1) perfect match -- nb_sectors and drive type */ | |
375 | goto out; | |
376 | } else if (drive_size(parse->drive) == drive_size(drv->drive)) { | |
377 | /* (2) size match -- nb_sectors and physical medium size */ | |
378 | match = (match == -1) ? i : match; | |
379 | } else { | |
380 | /* This is suspicious -- Did the user misconfigure? */ | |
381 | size_match = (size_match == -1) ? i : size_match; | |
9a972233 | 382 | } |
f31937aa JS |
383 | } else if (type_match == -1) { |
384 | if ((parse->drive == drv->drive) || | |
385 | (magic && (parse->drive == get_fallback_drive_type(drv)))) { | |
386 | /* (3) type match -- nb_sectors mismatch, but matches the type | |
387 | * specified explicitly by the user, or matches the fallback | |
388 | * default type when using the drive autodetect mechanism */ | |
389 | type_match = i; | |
9a972233 JS |
390 | } |
391 | } | |
392 | } | |
f31937aa JS |
393 | |
394 | /* No exact match found */ | |
9a972233 | 395 | if (match == -1) { |
f31937aa JS |
396 | if (size_match != -1) { |
397 | parse = &fd_formats[size_match]; | |
398 | FLOPPY_DPRINTF("User requested floppy drive type '%s', " | |
399 | "but inserted medium appears to be a " | |
c691320f | 400 | "%"PRId64" sector '%s' type\n", |
977c736f | 401 | FloppyDriveType_str(drv->drive), |
f31937aa | 402 | nb_sectors, |
977c736f | 403 | FloppyDriveType_str(parse->drive)); |
9a972233 | 404 | } |
329b7291 | 405 | assert(type_match != -1 && "misconfigured fd_format"); |
f31937aa | 406 | match = type_match; |
9a972233 | 407 | } |
f31937aa JS |
408 | parse = &(fd_formats[match]); |
409 | ||
410 | out: | |
21862658 JS |
411 | if (parse->max_head == 0) { |
412 | drv->flags &= ~FDISK_DBL_SIDES; | |
413 | } else { | |
414 | drv->flags |= FDISK_DBL_SIDES; | |
415 | } | |
416 | drv->max_track = parse->max_track; | |
417 | drv->last_sect = parse->last_sect; | |
d5d47efc | 418 | drv->disk = parse->drive; |
21862658 | 419 | drv->media_rate = parse->rate; |
d5d47efc JS |
420 | return 0; |
421 | } | |
422 | ||
423 | static void pick_drive_type(FDrive *drv) | |
424 | { | |
fff4687b JS |
425 | if (drv->drive != FLOPPY_DRIVE_TYPE_AUTO) { |
426 | return; | |
427 | } | |
428 | ||
d5d47efc JS |
429 | if (pick_geometry(drv) == 0) { |
430 | drv->drive = drv->disk; | |
431 | } else { | |
a73275dd | 432 | drv->drive = get_fallback_drive_type(drv); |
d5d47efc | 433 | } |
fff4687b JS |
434 | |
435 | g_assert(drv->drive != FLOPPY_DRIVE_TYPE_AUTO); | |
9a972233 JS |
436 | } |
437 | ||
8977f3c1 | 438 | /* Revalidate a disk drive after a disk change */ |
5c02c033 | 439 | static void fd_revalidate(FDrive *drv) |
8977f3c1 | 440 | { |
d5d47efc JS |
441 | int rc; |
442 | ||
8977f3c1 | 443 | FLOPPY_DPRINTF("revalidate\n"); |
4be74634 | 444 | if (drv->blk != NULL) { |
21862658 | 445 | drv->ro = blk_is_read_only(drv->blk); |
abb3e55b | 446 | if (!blk_is_inserted(drv->blk)) { |
cfb08fba | 447 | FLOPPY_DPRINTF("No disk in drive\n"); |
d5d47efc | 448 | drv->disk = FLOPPY_DRIVE_TYPE_NONE; |
fd9bdbd3 | 449 | fd_empty_seek_hack(drv); |
d5d47efc JS |
450 | } else if (!drv->media_validated) { |
451 | rc = pick_geometry(drv); | |
452 | if (rc) { | |
453 | FLOPPY_DPRINTF("Could not validate floppy drive media"); | |
454 | } else { | |
455 | drv->media_validated = true; | |
456 | FLOPPY_DPRINTF("Floppy disk (%d h %d t %d s) %s\n", | |
457 | (drv->flags & FDISK_DBL_SIDES) ? 2 : 1, | |
458 | drv->max_track, drv->last_sect, | |
459 | drv->ro ? "ro" : "rw"); | |
460 | } | |
4f431960 | 461 | } |
8977f3c1 | 462 | } else { |
cfb08fba | 463 | FLOPPY_DPRINTF("No drive connected\n"); |
baca51fa | 464 | drv->last_sect = 0; |
4f431960 JM |
465 | drv->max_track = 0; |
466 | drv->flags &= ~FDISK_DBL_SIDES; | |
d5d47efc JS |
467 | drv->drive = FLOPPY_DRIVE_TYPE_NONE; |
468 | drv->disk = FLOPPY_DRIVE_TYPE_NONE; | |
8977f3c1 | 469 | } |
caed8802 FB |
470 | } |
471 | ||
39829a01 | 472 | static void fd_change_cb(void *opaque, bool load, Error **errp) |
394ea2ca KW |
473 | { |
474 | FDrive *drive = opaque; | |
a17c17a2 KW |
475 | |
476 | if (!load) { | |
477 | blk_set_perm(drive->blk, 0, BLK_PERM_ALL, &error_abort); | |
478 | } else { | |
ceff3e1f MZ |
479 | if (!blkconf_apply_backend_options(drive->conf, |
480 | blk_is_read_only(drive->blk), false, | |
481 | errp)) { | |
a17c17a2 KW |
482 | return; |
483 | } | |
484 | } | |
394ea2ca KW |
485 | |
486 | drive->media_changed = 1; | |
487 | drive->media_validated = false; | |
488 | fd_revalidate(drive); | |
489 | } | |
490 | ||
491 | static const BlockDevOps fd_block_ops = { | |
492 | .change_media_cb = fd_change_cb, | |
493 | }; | |
494 | ||
495 | ||
496 | #define TYPE_FLOPPY_DRIVE "floppy" | |
497 | #define FLOPPY_DRIVE(obj) \ | |
498 | OBJECT_CHECK(FloppyDrive, (obj), TYPE_FLOPPY_DRIVE) | |
499 | ||
500 | typedef struct FloppyDrive { | |
a92bd191 KW |
501 | DeviceState qdev; |
502 | uint32_t unit; | |
503 | BlockConf conf; | |
504 | FloppyDriveType type; | |
394ea2ca KW |
505 | } FloppyDrive; |
506 | ||
507 | static Property floppy_drive_properties[] = { | |
508 | DEFINE_PROP_UINT32("unit", FloppyDrive, unit, -1), | |
a92bd191 | 509 | DEFINE_BLOCK_PROPERTIES(FloppyDrive, conf), |
85bbd1e7 | 510 | DEFINE_PROP_SIGNED("drive-type", FloppyDrive, type, |
a92bd191 KW |
511 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
512 | FloppyDriveType), | |
394ea2ca KW |
513 | DEFINE_PROP_END_OF_LIST(), |
514 | }; | |
515 | ||
ae34fce5 | 516 | static void floppy_drive_realize(DeviceState *qdev, Error **errp) |
394ea2ca KW |
517 | { |
518 | FloppyDrive *dev = FLOPPY_DRIVE(qdev); | |
519 | FloppyBus *bus = FLOPPY_BUS(qdev->parent_bus); | |
520 | FDrive *drive; | |
0b9e918f | 521 | bool read_only; |
a92bd191 | 522 | int ret; |
394ea2ca KW |
523 | |
524 | if (dev->unit == -1) { | |
525 | for (dev->unit = 0; dev->unit < MAX_FD; dev->unit++) { | |
526 | drive = get_drv(bus->fdc, dev->unit); | |
527 | if (!drive->blk) { | |
528 | break; | |
529 | } | |
530 | } | |
531 | } | |
532 | ||
533 | if (dev->unit >= MAX_FD) { | |
ae34fce5 MZ |
534 | error_setg(errp, "Can't create floppy unit %d, bus supports " |
535 | "only %d units", dev->unit, MAX_FD); | |
536 | return; | |
394ea2ca KW |
537 | } |
538 | ||
394ea2ca | 539 | drive = get_drv(bus->fdc, dev->unit); |
394ea2ca | 540 | if (drive->blk) { |
ae34fce5 MZ |
541 | error_setg(errp, "Floppy unit %d is in use", dev->unit); |
542 | return; | |
a92bd191 KW |
543 | } |
544 | ||
545 | if (!dev->conf.blk) { | |
394ea2ca | 546 | /* Anonymous BlockBackend for an empty drive */ |
d861ab3a | 547 | dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL); |
a92bd191 KW |
548 | ret = blk_attach_dev(dev->conf.blk, qdev); |
549 | assert(ret == 0); | |
0b9e918f KW |
550 | |
551 | /* Don't take write permissions on an empty drive to allow attaching a | |
552 | * read-only node later */ | |
553 | read_only = true; | |
554 | } else { | |
555 | read_only = !blk_bs(dev->conf.blk) || blk_is_read_only(dev->conf.blk); | |
394ea2ca KW |
556 | } |
557 | ||
c56ee92f RK |
558 | if (!blkconf_blocksizes(&dev->conf, errp)) { |
559 | return; | |
560 | } | |
561 | ||
a92bd191 KW |
562 | if (dev->conf.logical_block_size != 512 || |
563 | dev->conf.physical_block_size != 512) | |
564 | { | |
ae34fce5 MZ |
565 | error_setg(errp, "Physical and logical block size must " |
566 | "be 512 for floppy"); | |
567 | return; | |
a92bd191 KW |
568 | } |
569 | ||
570 | /* rerror/werror aren't supported by fdc and therefore not even registered | |
571 | * with qdev. So set the defaults manually before they are used in | |
572 | * blkconf_apply_backend_options(). */ | |
573 | dev->conf.rerror = BLOCKDEV_ON_ERROR_AUTO; | |
574 | dev->conf.werror = BLOCKDEV_ON_ERROR_AUTO; | |
a17c17a2 | 575 | |
0b9e918f | 576 | if (!blkconf_apply_backend_options(&dev->conf, read_only, false, errp)) { |
ae34fce5 | 577 | return; |
a17c17a2 | 578 | } |
a92bd191 KW |
579 | |
580 | /* 'enospc' is the default for -drive, 'report' is what blk_new() gives us | |
581 | * for empty drives. */ | |
582 | if (blk_get_on_error(dev->conf.blk, 0) != BLOCKDEV_ON_ERROR_ENOSPC && | |
583 | blk_get_on_error(dev->conf.blk, 0) != BLOCKDEV_ON_ERROR_REPORT) { | |
ae34fce5 MZ |
584 | error_setg(errp, "fdc doesn't support drive option werror"); |
585 | return; | |
394ea2ca | 586 | } |
a92bd191 | 587 | if (blk_get_on_error(dev->conf.blk, 1) != BLOCKDEV_ON_ERROR_REPORT) { |
ae34fce5 MZ |
588 | error_setg(errp, "fdc doesn't support drive option rerror"); |
589 | return; | |
a92bd191 KW |
590 | } |
591 | ||
a17c17a2 | 592 | drive->conf = &dev->conf; |
a92bd191 KW |
593 | drive->blk = dev->conf.blk; |
594 | drive->fdctrl = bus->fdc; | |
595 | ||
596 | fd_init(drive); | |
597 | blk_set_dev_ops(drive->blk, &fd_block_ops, drive); | |
598 | ||
599 | /* Keep 'type' qdev property and FDrive->drive in sync */ | |
600 | drive->drive = dev->type; | |
601 | pick_drive_type(drive); | |
602 | dev->type = drive->drive; | |
603 | ||
394ea2ca | 604 | fd_revalidate(drive); |
394ea2ca KW |
605 | } |
606 | ||
607 | static void floppy_drive_class_init(ObjectClass *klass, void *data) | |
608 | { | |
609 | DeviceClass *k = DEVICE_CLASS(klass); | |
ae34fce5 | 610 | k->realize = floppy_drive_realize; |
394ea2ca KW |
611 | set_bit(DEVICE_CATEGORY_STORAGE, k->categories); |
612 | k->bus_type = TYPE_FLOPPY_BUS; | |
4f67d30b | 613 | device_class_set_props(k, floppy_drive_properties); |
394ea2ca KW |
614 | k->desc = "virtual floppy drive"; |
615 | } | |
616 | ||
617 | static const TypeInfo floppy_drive_info = { | |
618 | .name = TYPE_FLOPPY_DRIVE, | |
619 | .parent = TYPE_DEVICE, | |
620 | .instance_size = sizeof(FloppyDrive), | |
621 | .class_init = floppy_drive_class_init, | |
622 | }; | |
623 | ||
8977f3c1 | 624 | /********************************************************/ |
4b19ec0c | 625 | /* Intel 82078 floppy disk controller emulation */ |
8977f3c1 | 626 | |
5c02c033 | 627 | static void fdctrl_reset(FDCtrl *fdctrl, int do_irq); |
07e415f2 | 628 | static void fdctrl_to_command_phase(FDCtrl *fdctrl); |
85571bc7 | 629 | static int fdctrl_transfer_handler (void *opaque, int nchan, |
c227f099 | 630 | int dma_pos, int dma_len); |
d497d534 | 631 | static void fdctrl_raise_irq(FDCtrl *fdctrl); |
a2df5fa3 | 632 | static FDrive *get_cur_drv(FDCtrl *fdctrl); |
5c02c033 BS |
633 | |
634 | static uint32_t fdctrl_read_statusA(FDCtrl *fdctrl); | |
635 | static uint32_t fdctrl_read_statusB(FDCtrl *fdctrl); | |
636 | static uint32_t fdctrl_read_dor(FDCtrl *fdctrl); | |
637 | static void fdctrl_write_dor(FDCtrl *fdctrl, uint32_t value); | |
638 | static uint32_t fdctrl_read_tape(FDCtrl *fdctrl); | |
639 | static void fdctrl_write_tape(FDCtrl *fdctrl, uint32_t value); | |
640 | static uint32_t fdctrl_read_main_status(FDCtrl *fdctrl); | |
641 | static void fdctrl_write_rate(FDCtrl *fdctrl, uint32_t value); | |
642 | static uint32_t fdctrl_read_data(FDCtrl *fdctrl); | |
643 | static void fdctrl_write_data(FDCtrl *fdctrl, uint32_t value); | |
644 | static uint32_t fdctrl_read_dir(FDCtrl *fdctrl); | |
a758f8f4 | 645 | static void fdctrl_write_ccr(FDCtrl *fdctrl, uint32_t value); |
8977f3c1 | 646 | |
8977f3c1 FB |
647 | enum { |
648 | FD_DIR_WRITE = 0, | |
649 | FD_DIR_READ = 1, | |
650 | FD_DIR_SCANE = 2, | |
651 | FD_DIR_SCANL = 3, | |
652 | FD_DIR_SCANH = 4, | |
7ea004ed | 653 | FD_DIR_VERIFY = 5, |
8977f3c1 FB |
654 | }; |
655 | ||
656 | enum { | |
b9b3d225 BS |
657 | FD_STATE_MULTI = 0x01, /* multi track flag */ |
658 | FD_STATE_FORMAT = 0x02, /* format flag */ | |
8977f3c1 FB |
659 | }; |
660 | ||
9fea808a | 661 | enum { |
8c6a4d77 BS |
662 | FD_REG_SRA = 0x00, |
663 | FD_REG_SRB = 0x01, | |
9fea808a BS |
664 | FD_REG_DOR = 0x02, |
665 | FD_REG_TDR = 0x03, | |
666 | FD_REG_MSR = 0x04, | |
667 | FD_REG_DSR = 0x04, | |
668 | FD_REG_FIFO = 0x05, | |
669 | FD_REG_DIR = 0x07, | |
a758f8f4 | 670 | FD_REG_CCR = 0x07, |
9fea808a BS |
671 | }; |
672 | ||
673 | enum { | |
65cef780 | 674 | FD_CMD_READ_TRACK = 0x02, |
9fea808a BS |
675 | FD_CMD_SPECIFY = 0x03, |
676 | FD_CMD_SENSE_DRIVE_STATUS = 0x04, | |
65cef780 BS |
677 | FD_CMD_WRITE = 0x05, |
678 | FD_CMD_READ = 0x06, | |
9fea808a BS |
679 | FD_CMD_RECALIBRATE = 0x07, |
680 | FD_CMD_SENSE_INTERRUPT_STATUS = 0x08, | |
65cef780 BS |
681 | FD_CMD_WRITE_DELETED = 0x09, |
682 | FD_CMD_READ_ID = 0x0a, | |
683 | FD_CMD_READ_DELETED = 0x0c, | |
684 | FD_CMD_FORMAT_TRACK = 0x0d, | |
9fea808a BS |
685 | FD_CMD_DUMPREG = 0x0e, |
686 | FD_CMD_SEEK = 0x0f, | |
687 | FD_CMD_VERSION = 0x10, | |
65cef780 | 688 | FD_CMD_SCAN_EQUAL = 0x11, |
9fea808a BS |
689 | FD_CMD_PERPENDICULAR_MODE = 0x12, |
690 | FD_CMD_CONFIGURE = 0x13, | |
65cef780 BS |
691 | FD_CMD_LOCK = 0x14, |
692 | FD_CMD_VERIFY = 0x16, | |
9fea808a BS |
693 | FD_CMD_POWERDOWN_MODE = 0x17, |
694 | FD_CMD_PART_ID = 0x18, | |
65cef780 BS |
695 | FD_CMD_SCAN_LOW_OR_EQUAL = 0x19, |
696 | FD_CMD_SCAN_HIGH_OR_EQUAL = 0x1d, | |
bb350a5e | 697 | FD_CMD_SAVE = 0x2e, |
9fea808a | 698 | FD_CMD_OPTION = 0x33, |
bb350a5e | 699 | FD_CMD_RESTORE = 0x4e, |
9fea808a BS |
700 | FD_CMD_DRIVE_SPECIFICATION_COMMAND = 0x8e, |
701 | FD_CMD_RELATIVE_SEEK_OUT = 0x8f, | |
9fea808a BS |
702 | FD_CMD_FORMAT_AND_WRITE = 0xcd, |
703 | FD_CMD_RELATIVE_SEEK_IN = 0xcf, | |
704 | }; | |
705 | ||
706 | enum { | |
707 | FD_CONFIG_PRETRK = 0xff, /* Pre-compensation set to track 0 */ | |
708 | FD_CONFIG_FIFOTHR = 0x0f, /* FIFO threshold set to 1 byte */ | |
709 | FD_CONFIG_POLL = 0x10, /* Poll enabled */ | |
710 | FD_CONFIG_EFIFO = 0x20, /* FIFO disabled */ | |
711 | FD_CONFIG_EIS = 0x40, /* No implied seeks */ | |
712 | }; | |
713 | ||
714 | enum { | |
2fee0088 PH |
715 | FD_SR0_DS0 = 0x01, |
716 | FD_SR0_DS1 = 0x02, | |
717 | FD_SR0_HEAD = 0x04, | |
9fea808a BS |
718 | FD_SR0_EQPMT = 0x10, |
719 | FD_SR0_SEEK = 0x20, | |
720 | FD_SR0_ABNTERM = 0x40, | |
721 | FD_SR0_INVCMD = 0x80, | |
722 | FD_SR0_RDYCHG = 0xc0, | |
723 | }; | |
724 | ||
77370520 | 725 | enum { |
844f65d6 | 726 | FD_SR1_MA = 0x01, /* Missing address mark */ |
8510854e | 727 | FD_SR1_NW = 0x02, /* Not writable */ |
77370520 BS |
728 | FD_SR1_EC = 0x80, /* End of cylinder */ |
729 | }; | |
730 | ||
731 | enum { | |
732 | FD_SR2_SNS = 0x04, /* Scan not satisfied */ | |
733 | FD_SR2_SEH = 0x08, /* Scan equal hit */ | |
734 | }; | |
735 | ||
8c6a4d77 BS |
736 | enum { |
737 | FD_SRA_DIR = 0x01, | |
738 | FD_SRA_nWP = 0x02, | |
739 | FD_SRA_nINDX = 0x04, | |
740 | FD_SRA_HDSEL = 0x08, | |
741 | FD_SRA_nTRK0 = 0x10, | |
742 | FD_SRA_STEP = 0x20, | |
743 | FD_SRA_nDRV2 = 0x40, | |
744 | FD_SRA_INTPEND = 0x80, | |
745 | }; | |
746 | ||
747 | enum { | |
748 | FD_SRB_MTR0 = 0x01, | |
749 | FD_SRB_MTR1 = 0x02, | |
750 | FD_SRB_WGATE = 0x04, | |
751 | FD_SRB_RDATA = 0x08, | |
752 | FD_SRB_WDATA = 0x10, | |
753 | FD_SRB_DR0 = 0x20, | |
754 | }; | |
755 | ||
9fea808a | 756 | enum { |
78ae820c BS |
757 | #if MAX_FD == 4 |
758 | FD_DOR_SELMASK = 0x03, | |
759 | #else | |
9fea808a | 760 | FD_DOR_SELMASK = 0x01, |
78ae820c | 761 | #endif |
9fea808a BS |
762 | FD_DOR_nRESET = 0x04, |
763 | FD_DOR_DMAEN = 0x08, | |
764 | FD_DOR_MOTEN0 = 0x10, | |
765 | FD_DOR_MOTEN1 = 0x20, | |
766 | FD_DOR_MOTEN2 = 0x40, | |
767 | FD_DOR_MOTEN3 = 0x80, | |
768 | }; | |
769 | ||
770 | enum { | |
78ae820c | 771 | #if MAX_FD == 4 |
9fea808a | 772 | FD_TDR_BOOTSEL = 0x0c, |
78ae820c BS |
773 | #else |
774 | FD_TDR_BOOTSEL = 0x04, | |
775 | #endif | |
9fea808a BS |
776 | }; |
777 | ||
778 | enum { | |
779 | FD_DSR_DRATEMASK= 0x03, | |
780 | FD_DSR_PWRDOWN = 0x40, | |
781 | FD_DSR_SWRESET = 0x80, | |
782 | }; | |
783 | ||
784 | enum { | |
785 | FD_MSR_DRV0BUSY = 0x01, | |
786 | FD_MSR_DRV1BUSY = 0x02, | |
787 | FD_MSR_DRV2BUSY = 0x04, | |
788 | FD_MSR_DRV3BUSY = 0x08, | |
789 | FD_MSR_CMDBUSY = 0x10, | |
790 | FD_MSR_NONDMA = 0x20, | |
791 | FD_MSR_DIO = 0x40, | |
792 | FD_MSR_RQM = 0x80, | |
793 | }; | |
794 | ||
795 | enum { | |
796 | FD_DIR_DSKCHG = 0x80, | |
797 | }; | |
798 | ||
85d291a0 KW |
799 | /* |
800 | * See chapter 5.0 "Controller phases" of the spec: | |
801 | * | |
802 | * Command phase: | |
803 | * The host writes a command and its parameters into the FIFO. The command | |
804 | * phase is completed when all parameters for the command have been supplied, | |
805 | * and execution phase is entered. | |
806 | * | |
807 | * Execution phase: | |
808 | * Data transfers, either DMA or non-DMA. For non-DMA transfers, the FIFO | |
809 | * contains the payload now, otherwise it's unused. When all bytes of the | |
810 | * required data have been transferred, the state is switched to either result | |
811 | * phase (if the command produces status bytes) or directly back into the | |
812 | * command phase for the next command. | |
813 | * | |
814 | * Result phase: | |
815 | * The host reads out the FIFO, which contains one or more result bytes now. | |
816 | */ | |
817 | enum { | |
818 | /* Only for migration: reconstruct phase from registers like qemu 2.3 */ | |
819 | FD_PHASE_RECONSTRUCT = 0, | |
820 | ||
821 | FD_PHASE_COMMAND = 1, | |
822 | FD_PHASE_EXECUTION = 2, | |
823 | FD_PHASE_RESULT = 3, | |
824 | }; | |
825 | ||
8977f3c1 | 826 | #define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI) |
baca51fa | 827 | #define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT) |
8977f3c1 | 828 | |
5c02c033 | 829 | struct FDCtrl { |
dc6c1b37 | 830 | MemoryRegion iomem; |
d537cf6c | 831 | qemu_irq irq; |
4b19ec0c | 832 | /* Controller state */ |
ed5fd2cc | 833 | QEMUTimer *result_timer; |
242cca4f | 834 | int dma_chann; |
85d291a0 | 835 | uint8_t phase; |
c8a35f1c | 836 | IsaDma *dma; |
242cca4f BS |
837 | /* Controller's identification */ |
838 | uint8_t version; | |
839 | /* HW */ | |
8c6a4d77 BS |
840 | uint8_t sra; |
841 | uint8_t srb; | |
368df94d | 842 | uint8_t dor; |
d7a6c270 | 843 | uint8_t dor_vmstate; /* only used as temp during vmstate */ |
46d3233b | 844 | uint8_t tdr; |
b9b3d225 | 845 | uint8_t dsr; |
368df94d | 846 | uint8_t msr; |
8977f3c1 | 847 | uint8_t cur_drv; |
77370520 BS |
848 | uint8_t status0; |
849 | uint8_t status1; | |
850 | uint8_t status2; | |
8977f3c1 | 851 | /* Command FIFO */ |
33f00271 | 852 | uint8_t *fifo; |
d7a6c270 | 853 | int32_t fifo_size; |
8977f3c1 FB |
854 | uint32_t data_pos; |
855 | uint32_t data_len; | |
856 | uint8_t data_state; | |
857 | uint8_t data_dir; | |
890fa6be | 858 | uint8_t eot; /* last wanted sector */ |
8977f3c1 | 859 | /* States kept only to be returned back */ |
8977f3c1 FB |
860 | /* precompensation */ |
861 | uint8_t precomp_trk; | |
862 | uint8_t config; | |
863 | uint8_t lock; | |
864 | /* Power down config (also with status regB access mode */ | |
865 | uint8_t pwrd; | |
866 | /* Floppy drives */ | |
51e6e90e | 867 | FloppyBus bus; |
d7a6c270 | 868 | uint8_t num_floppies; |
5c02c033 | 869 | FDrive drives[MAX_FD]; |
a92bd191 KW |
870 | struct { |
871 | BlockBackend *blk; | |
872 | FloppyDriveType type; | |
873 | } qdev_for_drives[MAX_FD]; | |
f2d81b33 | 874 | int reset_sensei; |
09c6d585 | 875 | uint32_t check_media_rate; |
a73275dd | 876 | FloppyDriveType fallback; /* type=auto failure fallback */ |
242cca4f BS |
877 | /* Timers state */ |
878 | uint8_t timer0; | |
879 | uint8_t timer1; | |
e305a165 | 880 | PortioList portio_list; |
baca51fa FB |
881 | }; |
882 | ||
a73275dd JS |
883 | static FloppyDriveType get_fallback_drive_type(FDrive *drv) |
884 | { | |
885 | return drv->fdctrl->fallback; | |
886 | } | |
887 | ||
19d46d71 | 888 | #define TYPE_SYSBUS_FDC "base-sysbus-fdc" |
dd3be742 HT |
889 | #define SYSBUS_FDC(obj) OBJECT_CHECK(FDCtrlSysBus, (obj), TYPE_SYSBUS_FDC) |
890 | ||
5c02c033 | 891 | typedef struct FDCtrlSysBus { |
dd3be742 HT |
892 | /*< private >*/ |
893 | SysBusDevice parent_obj; | |
894 | /*< public >*/ | |
895 | ||
5c02c033 BS |
896 | struct FDCtrl state; |
897 | } FDCtrlSysBus; | |
8baf73ad | 898 | |
020c8e76 AF |
899 | #define ISA_FDC(obj) OBJECT_CHECK(FDCtrlISABus, (obj), TYPE_ISA_FDC) |
900 | ||
5c02c033 | 901 | typedef struct FDCtrlISABus { |
020c8e76 AF |
902 | ISADevice parent_obj; |
903 | ||
c9ae703d HP |
904 | uint32_t iobase; |
905 | uint32_t irq; | |
906 | uint32_t dma; | |
5c02c033 | 907 | struct FDCtrl state; |
1ca4d09a GN |
908 | int32_t bootindexA; |
909 | int32_t bootindexB; | |
5c02c033 | 910 | } FDCtrlISABus; |
8baf73ad | 911 | |
baca51fa FB |
912 | static uint32_t fdctrl_read (void *opaque, uint32_t reg) |
913 | { | |
5c02c033 | 914 | FDCtrl *fdctrl = opaque; |
baca51fa FB |
915 | uint32_t retval; |
916 | ||
a18e67f5 | 917 | reg &= 7; |
e64d7d59 | 918 | switch (reg) { |
8c6a4d77 BS |
919 | case FD_REG_SRA: |
920 | retval = fdctrl_read_statusA(fdctrl); | |
4f431960 | 921 | break; |
8c6a4d77 | 922 | case FD_REG_SRB: |
4f431960 JM |
923 | retval = fdctrl_read_statusB(fdctrl); |
924 | break; | |
9fea808a | 925 | case FD_REG_DOR: |
4f431960 JM |
926 | retval = fdctrl_read_dor(fdctrl); |
927 | break; | |
9fea808a | 928 | case FD_REG_TDR: |
baca51fa | 929 | retval = fdctrl_read_tape(fdctrl); |
4f431960 | 930 | break; |
9fea808a | 931 | case FD_REG_MSR: |
baca51fa | 932 | retval = fdctrl_read_main_status(fdctrl); |
4f431960 | 933 | break; |
9fea808a | 934 | case FD_REG_FIFO: |
baca51fa | 935 | retval = fdctrl_read_data(fdctrl); |
4f431960 | 936 | break; |
9fea808a | 937 | case FD_REG_DIR: |
baca51fa | 938 | retval = fdctrl_read_dir(fdctrl); |
4f431960 | 939 | break; |
a541f297 | 940 | default: |
4f431960 JM |
941 | retval = (uint32_t)(-1); |
942 | break; | |
a541f297 | 943 | } |
1a5396d9 | 944 | trace_fdc_ioport_read(reg, retval); |
baca51fa FB |
945 | |
946 | return retval; | |
947 | } | |
948 | ||
949 | static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value) | |
950 | { | |
5c02c033 | 951 | FDCtrl *fdctrl = opaque; |
baca51fa | 952 | |
a18e67f5 | 953 | reg &= 7; |
1a5396d9 | 954 | trace_fdc_ioport_write(reg, value); |
e64d7d59 | 955 | switch (reg) { |
9fea808a | 956 | case FD_REG_DOR: |
4f431960 JM |
957 | fdctrl_write_dor(fdctrl, value); |
958 | break; | |
9fea808a | 959 | case FD_REG_TDR: |
baca51fa | 960 | fdctrl_write_tape(fdctrl, value); |
4f431960 | 961 | break; |
9fea808a | 962 | case FD_REG_DSR: |
baca51fa | 963 | fdctrl_write_rate(fdctrl, value); |
4f431960 | 964 | break; |
9fea808a | 965 | case FD_REG_FIFO: |
baca51fa | 966 | fdctrl_write_data(fdctrl, value); |
4f431960 | 967 | break; |
a758f8f4 HP |
968 | case FD_REG_CCR: |
969 | fdctrl_write_ccr(fdctrl, value); | |
970 | break; | |
a541f297 | 971 | default: |
4f431960 | 972 | break; |
a541f297 | 973 | } |
baca51fa FB |
974 | } |
975 | ||
a8170e5e | 976 | static uint64_t fdctrl_read_mem (void *opaque, hwaddr reg, |
dc6c1b37 | 977 | unsigned ize) |
62a46c61 | 978 | { |
5dcb6b91 | 979 | return fdctrl_read(opaque, (uint32_t)reg); |
62a46c61 FB |
980 | } |
981 | ||
a8170e5e | 982 | static void fdctrl_write_mem (void *opaque, hwaddr reg, |
dc6c1b37 | 983 | uint64_t value, unsigned size) |
62a46c61 | 984 | { |
5dcb6b91 | 985 | fdctrl_write(opaque, (uint32_t)reg, value); |
62a46c61 FB |
986 | } |
987 | ||
dc6c1b37 AK |
988 | static const MemoryRegionOps fdctrl_mem_ops = { |
989 | .read = fdctrl_read_mem, | |
990 | .write = fdctrl_write_mem, | |
991 | .endianness = DEVICE_NATIVE_ENDIAN, | |
e80cfcfc FB |
992 | }; |
993 | ||
dc6c1b37 AK |
994 | static const MemoryRegionOps fdctrl_mem_strict_ops = { |
995 | .read = fdctrl_read_mem, | |
996 | .write = fdctrl_write_mem, | |
997 | .endianness = DEVICE_NATIVE_ENDIAN, | |
998 | .valid = { | |
999 | .min_access_size = 1, | |
1000 | .max_access_size = 1, | |
1001 | }, | |
7c560456 BS |
1002 | }; |
1003 | ||
7d905f71 JW |
1004 | static bool fdrive_media_changed_needed(void *opaque) |
1005 | { | |
1006 | FDrive *drive = opaque; | |
1007 | ||
abb3e55b | 1008 | return (drive->blk != NULL && drive->media_changed != 1); |
7d905f71 JW |
1009 | } |
1010 | ||
1011 | static const VMStateDescription vmstate_fdrive_media_changed = { | |
1012 | .name = "fdrive/media_changed", | |
1013 | .version_id = 1, | |
1014 | .minimum_version_id = 1, | |
5cd8cada | 1015 | .needed = fdrive_media_changed_needed, |
d49805ae | 1016 | .fields = (VMStateField[]) { |
7d905f71 JW |
1017 | VMSTATE_UINT8(media_changed, FDrive), |
1018 | VMSTATE_END_OF_LIST() | |
1019 | } | |
1020 | }; | |
1021 | ||
844f65d6 HP |
1022 | static bool fdrive_media_rate_needed(void *opaque) |
1023 | { | |
1024 | FDrive *drive = opaque; | |
1025 | ||
1026 | return drive->fdctrl->check_media_rate; | |
1027 | } | |
1028 | ||
1029 | static const VMStateDescription vmstate_fdrive_media_rate = { | |
1030 | .name = "fdrive/media_rate", | |
1031 | .version_id = 1, | |
1032 | .minimum_version_id = 1, | |
5cd8cada | 1033 | .needed = fdrive_media_rate_needed, |
d49805ae | 1034 | .fields = (VMStateField[]) { |
844f65d6 HP |
1035 | VMSTATE_UINT8(media_rate, FDrive), |
1036 | VMSTATE_END_OF_LIST() | |
1037 | } | |
1038 | }; | |
1039 | ||
c0b92f30 PD |
1040 | static bool fdrive_perpendicular_needed(void *opaque) |
1041 | { | |
1042 | FDrive *drive = opaque; | |
1043 | ||
1044 | return drive->perpendicular != 0; | |
1045 | } | |
1046 | ||
1047 | static const VMStateDescription vmstate_fdrive_perpendicular = { | |
1048 | .name = "fdrive/perpendicular", | |
1049 | .version_id = 1, | |
1050 | .minimum_version_id = 1, | |
5cd8cada | 1051 | .needed = fdrive_perpendicular_needed, |
c0b92f30 PD |
1052 | .fields = (VMStateField[]) { |
1053 | VMSTATE_UINT8(perpendicular, FDrive), | |
1054 | VMSTATE_END_OF_LIST() | |
1055 | } | |
1056 | }; | |
1057 | ||
1058 | static int fdrive_post_load(void *opaque, int version_id) | |
1059 | { | |
1060 | fd_revalidate(opaque); | |
1061 | return 0; | |
1062 | } | |
1063 | ||
d7a6c270 JQ |
1064 | static const VMStateDescription vmstate_fdrive = { |
1065 | .name = "fdrive", | |
1066 | .version_id = 1, | |
1067 | .minimum_version_id = 1, | |
c0b92f30 | 1068 | .post_load = fdrive_post_load, |
d49805ae | 1069 | .fields = (VMStateField[]) { |
5c02c033 BS |
1070 | VMSTATE_UINT8(head, FDrive), |
1071 | VMSTATE_UINT8(track, FDrive), | |
1072 | VMSTATE_UINT8(sect, FDrive), | |
d7a6c270 | 1073 | VMSTATE_END_OF_LIST() |
7d905f71 | 1074 | }, |
5cd8cada JQ |
1075 | .subsections = (const VMStateDescription*[]) { |
1076 | &vmstate_fdrive_media_changed, | |
1077 | &vmstate_fdrive_media_rate, | |
1078 | &vmstate_fdrive_perpendicular, | |
1079 | NULL | |
d7a6c270 JQ |
1080 | } |
1081 | }; | |
3ccacc4a | 1082 | |
85d291a0 KW |
1083 | /* |
1084 | * Reconstructs the phase from register values according to the logic that was | |
1085 | * implemented in qemu 2.3. This is the default value that is used if the phase | |
1086 | * subsection is not present on migration. | |
1087 | * | |
1088 | * Don't change this function to reflect newer qemu versions, it is part of | |
1089 | * the migration ABI. | |
1090 | */ | |
1091 | static int reconstruct_phase(FDCtrl *fdctrl) | |
1092 | { | |
1093 | if (fdctrl->msr & FD_MSR_NONDMA) { | |
1094 | return FD_PHASE_EXECUTION; | |
1095 | } else if ((fdctrl->msr & FD_MSR_RQM) == 0) { | |
1096 | /* qemu 2.3 disabled RQM only during DMA transfers */ | |
1097 | return FD_PHASE_EXECUTION; | |
1098 | } else if (fdctrl->msr & FD_MSR_DIO) { | |
1099 | return FD_PHASE_RESULT; | |
1100 | } else { | |
1101 | return FD_PHASE_COMMAND; | |
1102 | } | |
1103 | } | |
1104 | ||
44b1ff31 | 1105 | static int fdc_pre_save(void *opaque) |
3ccacc4a | 1106 | { |
5c02c033 | 1107 | FDCtrl *s = opaque; |
3ccacc4a | 1108 | |
d7a6c270 | 1109 | s->dor_vmstate = s->dor | GET_CUR_DRV(s); |
44b1ff31 DDAG |
1110 | |
1111 | return 0; | |
3ccacc4a BS |
1112 | } |
1113 | ||
85d291a0 KW |
1114 | static int fdc_pre_load(void *opaque) |
1115 | { | |
1116 | FDCtrl *s = opaque; | |
1117 | s->phase = FD_PHASE_RECONSTRUCT; | |
1118 | return 0; | |
1119 | } | |
1120 | ||
e59fb374 | 1121 | static int fdc_post_load(void *opaque, int version_id) |
3ccacc4a | 1122 | { |
5c02c033 | 1123 | FDCtrl *s = opaque; |
3ccacc4a | 1124 | |
d7a6c270 JQ |
1125 | SET_CUR_DRV(s, s->dor_vmstate & FD_DOR_SELMASK); |
1126 | s->dor = s->dor_vmstate & ~FD_DOR_SELMASK; | |
85d291a0 KW |
1127 | |
1128 | if (s->phase == FD_PHASE_RECONSTRUCT) { | |
1129 | s->phase = reconstruct_phase(s); | |
1130 | } | |
1131 | ||
3ccacc4a BS |
1132 | return 0; |
1133 | } | |
1134 | ||
c0b92f30 PD |
1135 | static bool fdc_reset_sensei_needed(void *opaque) |
1136 | { | |
1137 | FDCtrl *s = opaque; | |
1138 | ||
1139 | return s->reset_sensei != 0; | |
1140 | } | |
1141 | ||
1142 | static const VMStateDescription vmstate_fdc_reset_sensei = { | |
1143 | .name = "fdc/reset_sensei", | |
1144 | .version_id = 1, | |
1145 | .minimum_version_id = 1, | |
5cd8cada | 1146 | .needed = fdc_reset_sensei_needed, |
c0b92f30 PD |
1147 | .fields = (VMStateField[]) { |
1148 | VMSTATE_INT32(reset_sensei, FDCtrl), | |
1149 | VMSTATE_END_OF_LIST() | |
1150 | } | |
1151 | }; | |
1152 | ||
1153 | static bool fdc_result_timer_needed(void *opaque) | |
1154 | { | |
1155 | FDCtrl *s = opaque; | |
1156 | ||
1157 | return timer_pending(s->result_timer); | |
1158 | } | |
1159 | ||
1160 | static const VMStateDescription vmstate_fdc_result_timer = { | |
1161 | .name = "fdc/result_timer", | |
1162 | .version_id = 1, | |
1163 | .minimum_version_id = 1, | |
5cd8cada | 1164 | .needed = fdc_result_timer_needed, |
c0b92f30 | 1165 | .fields = (VMStateField[]) { |
e720677e | 1166 | VMSTATE_TIMER_PTR(result_timer, FDCtrl), |
c0b92f30 PD |
1167 | VMSTATE_END_OF_LIST() |
1168 | } | |
1169 | }; | |
1170 | ||
85d291a0 KW |
1171 | static bool fdc_phase_needed(void *opaque) |
1172 | { | |
1173 | FDCtrl *fdctrl = opaque; | |
1174 | ||
1175 | return reconstruct_phase(fdctrl) != fdctrl->phase; | |
1176 | } | |
1177 | ||
1178 | static const VMStateDescription vmstate_fdc_phase = { | |
1179 | .name = "fdc/phase", | |
1180 | .version_id = 1, | |
1181 | .minimum_version_id = 1, | |
5cd8cada | 1182 | .needed = fdc_phase_needed, |
85d291a0 KW |
1183 | .fields = (VMStateField[]) { |
1184 | VMSTATE_UINT8(phase, FDCtrl), | |
1185 | VMSTATE_END_OF_LIST() | |
1186 | } | |
1187 | }; | |
1188 | ||
d7a6c270 | 1189 | static const VMStateDescription vmstate_fdc = { |
aef30c3c | 1190 | .name = "fdc", |
d7a6c270 JQ |
1191 | .version_id = 2, |
1192 | .minimum_version_id = 2, | |
d7a6c270 | 1193 | .pre_save = fdc_pre_save, |
85d291a0 | 1194 | .pre_load = fdc_pre_load, |
d7a6c270 | 1195 | .post_load = fdc_post_load, |
d49805ae | 1196 | .fields = (VMStateField[]) { |
d7a6c270 | 1197 | /* Controller State */ |
5c02c033 BS |
1198 | VMSTATE_UINT8(sra, FDCtrl), |
1199 | VMSTATE_UINT8(srb, FDCtrl), | |
1200 | VMSTATE_UINT8(dor_vmstate, FDCtrl), | |
1201 | VMSTATE_UINT8(tdr, FDCtrl), | |
1202 | VMSTATE_UINT8(dsr, FDCtrl), | |
1203 | VMSTATE_UINT8(msr, FDCtrl), | |
1204 | VMSTATE_UINT8(status0, FDCtrl), | |
1205 | VMSTATE_UINT8(status1, FDCtrl), | |
1206 | VMSTATE_UINT8(status2, FDCtrl), | |
d7a6c270 | 1207 | /* Command FIFO */ |
8ec68b06 BS |
1208 | VMSTATE_VARRAY_INT32(fifo, FDCtrl, fifo_size, 0, vmstate_info_uint8, |
1209 | uint8_t), | |
5c02c033 BS |
1210 | VMSTATE_UINT32(data_pos, FDCtrl), |
1211 | VMSTATE_UINT32(data_len, FDCtrl), | |
1212 | VMSTATE_UINT8(data_state, FDCtrl), | |
1213 | VMSTATE_UINT8(data_dir, FDCtrl), | |
1214 | VMSTATE_UINT8(eot, FDCtrl), | |
d7a6c270 | 1215 | /* States kept only to be returned back */ |
5c02c033 BS |
1216 | VMSTATE_UINT8(timer0, FDCtrl), |
1217 | VMSTATE_UINT8(timer1, FDCtrl), | |
1218 | VMSTATE_UINT8(precomp_trk, FDCtrl), | |
1219 | VMSTATE_UINT8(config, FDCtrl), | |
1220 | VMSTATE_UINT8(lock, FDCtrl), | |
1221 | VMSTATE_UINT8(pwrd, FDCtrl), | |
d2164ad3 | 1222 | VMSTATE_UINT8_EQUAL(num_floppies, FDCtrl, NULL), |
5c02c033 BS |
1223 | VMSTATE_STRUCT_ARRAY(drives, FDCtrl, MAX_FD, 1, |
1224 | vmstate_fdrive, FDrive), | |
d7a6c270 | 1225 | VMSTATE_END_OF_LIST() |
c0b92f30 | 1226 | }, |
5cd8cada JQ |
1227 | .subsections = (const VMStateDescription*[]) { |
1228 | &vmstate_fdc_reset_sensei, | |
1229 | &vmstate_fdc_result_timer, | |
1230 | &vmstate_fdc_phase, | |
1231 | NULL | |
78ae820c | 1232 | } |
d7a6c270 | 1233 | }; |
3ccacc4a | 1234 | |
2be37833 | 1235 | static void fdctrl_external_reset_sysbus(DeviceState *d) |
3ccacc4a | 1236 | { |
dd3be742 | 1237 | FDCtrlSysBus *sys = SYSBUS_FDC(d); |
5c02c033 | 1238 | FDCtrl *s = &sys->state; |
2be37833 BS |
1239 | |
1240 | fdctrl_reset(s, 0); | |
1241 | } | |
1242 | ||
1243 | static void fdctrl_external_reset_isa(DeviceState *d) | |
1244 | { | |
020c8e76 | 1245 | FDCtrlISABus *isa = ISA_FDC(d); |
5c02c033 | 1246 | FDCtrl *s = &isa->state; |
3ccacc4a BS |
1247 | |
1248 | fdctrl_reset(s, 0); | |
1249 | } | |
1250 | ||
2be17ebd BS |
1251 | static void fdctrl_handle_tc(void *opaque, int irq, int level) |
1252 | { | |
5c02c033 | 1253 | //FDCtrl *s = opaque; |
2be17ebd BS |
1254 | |
1255 | if (level) { | |
1256 | // XXX | |
1257 | FLOPPY_DPRINTF("TC pulsed\n"); | |
1258 | } | |
1259 | } | |
1260 | ||
8977f3c1 | 1261 | /* Change IRQ state */ |
5c02c033 | 1262 | static void fdctrl_reset_irq(FDCtrl *fdctrl) |
8977f3c1 | 1263 | { |
d497d534 | 1264 | fdctrl->status0 = 0; |
8c6a4d77 BS |
1265 | if (!(fdctrl->sra & FD_SRA_INTPEND)) |
1266 | return; | |
ed5fd2cc | 1267 | FLOPPY_DPRINTF("Reset interrupt\n"); |
d537cf6c | 1268 | qemu_set_irq(fdctrl->irq, 0); |
8c6a4d77 | 1269 | fdctrl->sra &= ~FD_SRA_INTPEND; |
8977f3c1 FB |
1270 | } |
1271 | ||
d497d534 | 1272 | static void fdctrl_raise_irq(FDCtrl *fdctrl) |
8977f3c1 | 1273 | { |
8c6a4d77 | 1274 | if (!(fdctrl->sra & FD_SRA_INTPEND)) { |
d537cf6c | 1275 | qemu_set_irq(fdctrl->irq, 1); |
8c6a4d77 | 1276 | fdctrl->sra |= FD_SRA_INTPEND; |
8977f3c1 | 1277 | } |
21fcf360 | 1278 | |
f2d81b33 | 1279 | fdctrl->reset_sensei = 0; |
77370520 | 1280 | FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", fdctrl->status0); |
8977f3c1 FB |
1281 | } |
1282 | ||
4b19ec0c | 1283 | /* Reset controller */ |
5c02c033 | 1284 | static void fdctrl_reset(FDCtrl *fdctrl, int do_irq) |
8977f3c1 FB |
1285 | { |
1286 | int i; | |
1287 | ||
4b19ec0c | 1288 | FLOPPY_DPRINTF("reset controller\n"); |
baca51fa | 1289 | fdctrl_reset_irq(fdctrl); |
4b19ec0c | 1290 | /* Initialise controller */ |
8c6a4d77 BS |
1291 | fdctrl->sra = 0; |
1292 | fdctrl->srb = 0xc0; | |
4be74634 | 1293 | if (!fdctrl->drives[1].blk) { |
8c6a4d77 | 1294 | fdctrl->sra |= FD_SRA_nDRV2; |
4be74634 | 1295 | } |
baca51fa | 1296 | fdctrl->cur_drv = 0; |
1c346df2 | 1297 | fdctrl->dor = FD_DOR_nRESET; |
368df94d | 1298 | fdctrl->dor |= (fdctrl->dma_chann != -1) ? FD_DOR_DMAEN : 0; |
b9b3d225 | 1299 | fdctrl->msr = FD_MSR_RQM; |
c0b92f30 PD |
1300 | fdctrl->reset_sensei = 0; |
1301 | timer_del(fdctrl->result_timer); | |
8977f3c1 | 1302 | /* FIFO state */ |
baca51fa FB |
1303 | fdctrl->data_pos = 0; |
1304 | fdctrl->data_len = 0; | |
b9b3d225 | 1305 | fdctrl->data_state = 0; |
baca51fa | 1306 | fdctrl->data_dir = FD_DIR_WRITE; |
8977f3c1 | 1307 | for (i = 0; i < MAX_FD; i++) |
1c346df2 | 1308 | fd_recalibrate(&fdctrl->drives[i]); |
07e415f2 | 1309 | fdctrl_to_command_phase(fdctrl); |
77370520 | 1310 | if (do_irq) { |
d497d534 HP |
1311 | fdctrl->status0 |= FD_SR0_RDYCHG; |
1312 | fdctrl_raise_irq(fdctrl); | |
f2d81b33 | 1313 | fdctrl->reset_sensei = FD_RESET_SENSEI_COUNT; |
77370520 | 1314 | } |
baca51fa FB |
1315 | } |
1316 | ||
5c02c033 | 1317 | static inline FDrive *drv0(FDCtrl *fdctrl) |
baca51fa | 1318 | { |
46d3233b | 1319 | return &fdctrl->drives[(fdctrl->tdr & FD_TDR_BOOTSEL) >> 2]; |
baca51fa FB |
1320 | } |
1321 | ||
5c02c033 | 1322 | static inline FDrive *drv1(FDCtrl *fdctrl) |
baca51fa | 1323 | { |
46d3233b BS |
1324 | if ((fdctrl->tdr & FD_TDR_BOOTSEL) < (1 << 2)) |
1325 | return &fdctrl->drives[1]; | |
1326 | else | |
1327 | return &fdctrl->drives[0]; | |
baca51fa FB |
1328 | } |
1329 | ||
78ae820c | 1330 | #if MAX_FD == 4 |
5c02c033 | 1331 | static inline FDrive *drv2(FDCtrl *fdctrl) |
78ae820c BS |
1332 | { |
1333 | if ((fdctrl->tdr & FD_TDR_BOOTSEL) < (2 << 2)) | |
1334 | return &fdctrl->drives[2]; | |
1335 | else | |
1336 | return &fdctrl->drives[1]; | |
1337 | } | |
1338 | ||
5c02c033 | 1339 | static inline FDrive *drv3(FDCtrl *fdctrl) |
78ae820c BS |
1340 | { |
1341 | if ((fdctrl->tdr & FD_TDR_BOOTSEL) < (3 << 2)) | |
1342 | return &fdctrl->drives[3]; | |
1343 | else | |
1344 | return &fdctrl->drives[2]; | |
1345 | } | |
1346 | #endif | |
1347 | ||
394ea2ca | 1348 | static FDrive *get_drv(FDCtrl *fdctrl, int unit) |
baca51fa | 1349 | { |
394ea2ca | 1350 | switch (unit) { |
78ae820c BS |
1351 | case 0: return drv0(fdctrl); |
1352 | case 1: return drv1(fdctrl); | |
1353 | #if MAX_FD == 4 | |
1354 | case 2: return drv2(fdctrl); | |
1355 | case 3: return drv3(fdctrl); | |
1356 | #endif | |
1357 | default: return NULL; | |
1358 | } | |
8977f3c1 FB |
1359 | } |
1360 | ||
394ea2ca KW |
1361 | static FDrive *get_cur_drv(FDCtrl *fdctrl) |
1362 | { | |
1363 | return get_drv(fdctrl, fdctrl->cur_drv); | |
1364 | } | |
1365 | ||
8c6a4d77 | 1366 | /* Status A register : 0x00 (read-only) */ |
5c02c033 | 1367 | static uint32_t fdctrl_read_statusA(FDCtrl *fdctrl) |
8c6a4d77 BS |
1368 | { |
1369 | uint32_t retval = fdctrl->sra; | |
1370 | ||
1371 | FLOPPY_DPRINTF("status register A: 0x%02x\n", retval); | |
1372 | ||
1373 | return retval; | |
1374 | } | |
1375 | ||
8977f3c1 | 1376 | /* Status B register : 0x01 (read-only) */ |
5c02c033 | 1377 | static uint32_t fdctrl_read_statusB(FDCtrl *fdctrl) |
8977f3c1 | 1378 | { |
8c6a4d77 BS |
1379 | uint32_t retval = fdctrl->srb; |
1380 | ||
1381 | FLOPPY_DPRINTF("status register B: 0x%02x\n", retval); | |
1382 | ||
1383 | return retval; | |
8977f3c1 FB |
1384 | } |
1385 | ||
1386 | /* Digital output register : 0x02 */ | |
5c02c033 | 1387 | static uint32_t fdctrl_read_dor(FDCtrl *fdctrl) |
8977f3c1 | 1388 | { |
1c346df2 | 1389 | uint32_t retval = fdctrl->dor; |
8977f3c1 | 1390 | |
8977f3c1 | 1391 | /* Selected drive */ |
baca51fa | 1392 | retval |= fdctrl->cur_drv; |
8977f3c1 FB |
1393 | FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval); |
1394 | ||
1395 | return retval; | |
1396 | } | |
1397 | ||
5c02c033 | 1398 | static void fdctrl_write_dor(FDCtrl *fdctrl, uint32_t value) |
8977f3c1 | 1399 | { |
8977f3c1 | 1400 | FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value); |
8c6a4d77 BS |
1401 | |
1402 | /* Motors */ | |
1403 | if (value & FD_DOR_MOTEN0) | |
1404 | fdctrl->srb |= FD_SRB_MTR0; | |
1405 | else | |
1406 | fdctrl->srb &= ~FD_SRB_MTR0; | |
1407 | if (value & FD_DOR_MOTEN1) | |
1408 | fdctrl->srb |= FD_SRB_MTR1; | |
1409 | else | |
1410 | fdctrl->srb &= ~FD_SRB_MTR1; | |
1411 | ||
1412 | /* Drive */ | |
1413 | if (value & 1) | |
1414 | fdctrl->srb |= FD_SRB_DR0; | |
1415 | else | |
1416 | fdctrl->srb &= ~FD_SRB_DR0; | |
1417 | ||
8977f3c1 | 1418 | /* Reset */ |
9fea808a | 1419 | if (!(value & FD_DOR_nRESET)) { |
1c346df2 | 1420 | if (fdctrl->dor & FD_DOR_nRESET) { |
4b19ec0c | 1421 | FLOPPY_DPRINTF("controller enter RESET state\n"); |
8977f3c1 FB |
1422 | } |
1423 | } else { | |
1c346df2 | 1424 | if (!(fdctrl->dor & FD_DOR_nRESET)) { |
4b19ec0c | 1425 | FLOPPY_DPRINTF("controller out of RESET state\n"); |
fb6cf1d0 | 1426 | fdctrl_reset(fdctrl, 1); |
b9b3d225 | 1427 | fdctrl->dsr &= ~FD_DSR_PWRDOWN; |
8977f3c1 FB |
1428 | } |
1429 | } | |
1430 | /* Selected drive */ | |
9fea808a | 1431 | fdctrl->cur_drv = value & FD_DOR_SELMASK; |
368df94d BS |
1432 | |
1433 | fdctrl->dor = value; | |
8977f3c1 FB |
1434 | } |
1435 | ||
1436 | /* Tape drive register : 0x03 */ | |
5c02c033 | 1437 | static uint32_t fdctrl_read_tape(FDCtrl *fdctrl) |
8977f3c1 | 1438 | { |
46d3233b | 1439 | uint32_t retval = fdctrl->tdr; |
8977f3c1 | 1440 | |
8977f3c1 FB |
1441 | FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval); |
1442 | ||
1443 | return retval; | |
1444 | } | |
1445 | ||
5c02c033 | 1446 | static void fdctrl_write_tape(FDCtrl *fdctrl, uint32_t value) |
8977f3c1 | 1447 | { |
8977f3c1 | 1448 | /* Reset mode */ |
1c346df2 | 1449 | if (!(fdctrl->dor & FD_DOR_nRESET)) { |
4b19ec0c | 1450 | FLOPPY_DPRINTF("Floppy controller in RESET state !\n"); |
8977f3c1 FB |
1451 | return; |
1452 | } | |
1453 | FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value); | |
1454 | /* Disk boot selection indicator */ | |
46d3233b | 1455 | fdctrl->tdr = value & FD_TDR_BOOTSEL; |
8977f3c1 FB |
1456 | /* Tape indicators: never allow */ |
1457 | } | |
1458 | ||
1459 | /* Main status register : 0x04 (read) */ | |
5c02c033 | 1460 | static uint32_t fdctrl_read_main_status(FDCtrl *fdctrl) |
8977f3c1 | 1461 | { |
b9b3d225 | 1462 | uint32_t retval = fdctrl->msr; |
8977f3c1 | 1463 | |
b9b3d225 | 1464 | fdctrl->dsr &= ~FD_DSR_PWRDOWN; |
1c346df2 | 1465 | fdctrl->dor |= FD_DOR_nRESET; |
b9b3d225 | 1466 | |
8977f3c1 FB |
1467 | FLOPPY_DPRINTF("main status register: 0x%02x\n", retval); |
1468 | ||
1469 | return retval; | |
1470 | } | |
1471 | ||
1472 | /* Data select rate register : 0x04 (write) */ | |
5c02c033 | 1473 | static void fdctrl_write_rate(FDCtrl *fdctrl, uint32_t value) |
8977f3c1 | 1474 | { |
8977f3c1 | 1475 | /* Reset mode */ |
1c346df2 | 1476 | if (!(fdctrl->dor & FD_DOR_nRESET)) { |
4f431960 JM |
1477 | FLOPPY_DPRINTF("Floppy controller in RESET state !\n"); |
1478 | return; | |
1479 | } | |
8977f3c1 FB |
1480 | FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value); |
1481 | /* Reset: autoclear */ | |
9fea808a | 1482 | if (value & FD_DSR_SWRESET) { |
1c346df2 | 1483 | fdctrl->dor &= ~FD_DOR_nRESET; |
baca51fa | 1484 | fdctrl_reset(fdctrl, 1); |
1c346df2 | 1485 | fdctrl->dor |= FD_DOR_nRESET; |
8977f3c1 | 1486 | } |
9fea808a | 1487 | if (value & FD_DSR_PWRDOWN) { |
baca51fa | 1488 | fdctrl_reset(fdctrl, 1); |
8977f3c1 | 1489 | } |
b9b3d225 | 1490 | fdctrl->dsr = value; |
8977f3c1 FB |
1491 | } |
1492 | ||
a758f8f4 HP |
1493 | /* Configuration control register: 0x07 (write) */ |
1494 | static void fdctrl_write_ccr(FDCtrl *fdctrl, uint32_t value) | |
1495 | { | |
1496 | /* Reset mode */ | |
1497 | if (!(fdctrl->dor & FD_DOR_nRESET)) { | |
1498 | FLOPPY_DPRINTF("Floppy controller in RESET state !\n"); | |
1499 | return; | |
1500 | } | |
1501 | FLOPPY_DPRINTF("configuration control register set to 0x%02x\n", value); | |
1502 | ||
1503 | /* Only the rate selection bits used in AT mode, and we | |
1504 | * store those in the DSR. | |
1505 | */ | |
1506 | fdctrl->dsr = (fdctrl->dsr & ~FD_DSR_DRATEMASK) | | |
1507 | (value & FD_DSR_DRATEMASK); | |
1508 | } | |
1509 | ||
5c02c033 | 1510 | static int fdctrl_media_changed(FDrive *drv) |
ea185bbd | 1511 | { |
21fcf360 | 1512 | return drv->media_changed; |
ea185bbd FB |
1513 | } |
1514 | ||
8977f3c1 | 1515 | /* Digital input register : 0x07 (read-only) */ |
5c02c033 | 1516 | static uint32_t fdctrl_read_dir(FDCtrl *fdctrl) |
8977f3c1 | 1517 | { |
8977f3c1 FB |
1518 | uint32_t retval = 0; |
1519 | ||
a2df5fa3 | 1520 | if (fdctrl_media_changed(get_cur_drv(fdctrl))) { |
9fea808a | 1521 | retval |= FD_DIR_DSKCHG; |
a2df5fa3 | 1522 | } |
3c83eb4f | 1523 | if (retval != 0) { |
baca51fa | 1524 | FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval); |
3c83eb4f | 1525 | } |
8977f3c1 FB |
1526 | |
1527 | return retval; | |
1528 | } | |
1529 | ||
07e415f2 KW |
1530 | /* Clear the FIFO and update the state for receiving the next command */ |
1531 | static void fdctrl_to_command_phase(FDCtrl *fdctrl) | |
8977f3c1 | 1532 | { |
85d291a0 | 1533 | fdctrl->phase = FD_PHASE_COMMAND; |
baca51fa FB |
1534 | fdctrl->data_dir = FD_DIR_WRITE; |
1535 | fdctrl->data_pos = 0; | |
6cc8a11c | 1536 | fdctrl->data_len = 1; /* Accept command byte, adjust for params later */ |
b9b3d225 | 1537 | fdctrl->msr &= ~(FD_MSR_CMDBUSY | FD_MSR_DIO); |
6cc8a11c | 1538 | fdctrl->msr |= FD_MSR_RQM; |
8977f3c1 FB |
1539 | } |
1540 | ||
83a26013 KW |
1541 | /* Update the state to allow the guest to read out the command status. |
1542 | * @fifo_len is the number of result bytes to be read out. */ | |
1543 | static void fdctrl_to_result_phase(FDCtrl *fdctrl, int fifo_len) | |
8977f3c1 | 1544 | { |
85d291a0 | 1545 | fdctrl->phase = FD_PHASE_RESULT; |
baca51fa FB |
1546 | fdctrl->data_dir = FD_DIR_READ; |
1547 | fdctrl->data_len = fifo_len; | |
1548 | fdctrl->data_pos = 0; | |
b9b3d225 | 1549 | fdctrl->msr |= FD_MSR_CMDBUSY | FD_MSR_RQM | FD_MSR_DIO; |
8977f3c1 FB |
1550 | } |
1551 | ||
1552 | /* Set an error: unimplemented/unknown command */ | |
5c02c033 | 1553 | static void fdctrl_unimplemented(FDCtrl *fdctrl, int direction) |
8977f3c1 | 1554 | { |
cced7a13 BS |
1555 | qemu_log_mask(LOG_UNIMP, "fdc: unimplemented command 0x%02x\n", |
1556 | fdctrl->fifo[0]); | |
9fea808a | 1557 | fdctrl->fifo[0] = FD_SR0_INVCMD; |
83a26013 | 1558 | fdctrl_to_result_phase(fdctrl, 1); |
8977f3c1 FB |
1559 | } |
1560 | ||
6be01b1e PH |
1561 | /* Seek to next sector |
1562 | * returns 0 when end of track reached (for DBL_SIDES on head 1) | |
1563 | * otherwise returns 1 | |
1564 | */ | |
5c02c033 | 1565 | static int fdctrl_seek_to_next_sect(FDCtrl *fdctrl, FDrive *cur_drv) |
746d6de7 BS |
1566 | { |
1567 | FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d)\n", | |
1568 | cur_drv->head, cur_drv->track, cur_drv->sect, | |
1569 | fd_sector(cur_drv)); | |
1570 | /* XXX: cur_drv->sect >= cur_drv->last_sect should be an | |
1571 | error in fact */ | |
6be01b1e PH |
1572 | uint8_t new_head = cur_drv->head; |
1573 | uint8_t new_track = cur_drv->track; | |
1574 | uint8_t new_sect = cur_drv->sect; | |
1575 | ||
1576 | int ret = 1; | |
1577 | ||
1578 | if (new_sect >= cur_drv->last_sect || | |
1579 | new_sect == fdctrl->eot) { | |
1580 | new_sect = 1; | |
746d6de7 | 1581 | if (FD_MULTI_TRACK(fdctrl->data_state)) { |
6be01b1e | 1582 | if (new_head == 0 && |
746d6de7 | 1583 | (cur_drv->flags & FDISK_DBL_SIDES) != 0) { |
6be01b1e | 1584 | new_head = 1; |
746d6de7 | 1585 | } else { |
6be01b1e PH |
1586 | new_head = 0; |
1587 | new_track++; | |
c5139bd9 | 1588 | fdctrl->status0 |= FD_SR0_SEEK; |
6be01b1e PH |
1589 | if ((cur_drv->flags & FDISK_DBL_SIDES) == 0) { |
1590 | ret = 0; | |
1591 | } | |
746d6de7 BS |
1592 | } |
1593 | } else { | |
c5139bd9 | 1594 | fdctrl->status0 |= FD_SR0_SEEK; |
6be01b1e PH |
1595 | new_track++; |
1596 | ret = 0; | |
1597 | } | |
1598 | if (ret == 1) { | |
1599 | FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n", | |
1600 | new_head, new_track, new_sect, fd_sector(cur_drv)); | |
746d6de7 | 1601 | } |
746d6de7 | 1602 | } else { |
6be01b1e | 1603 | new_sect++; |
746d6de7 | 1604 | } |
6be01b1e PH |
1605 | fd_seek(cur_drv, new_head, new_track, new_sect, 1); |
1606 | return ret; | |
746d6de7 BS |
1607 | } |
1608 | ||
8977f3c1 | 1609 | /* Callback for transfer end (stop or abort) */ |
5c02c033 BS |
1610 | static void fdctrl_stop_transfer(FDCtrl *fdctrl, uint8_t status0, |
1611 | uint8_t status1, uint8_t status2) | |
8977f3c1 | 1612 | { |
5c02c033 | 1613 | FDrive *cur_drv; |
baca51fa | 1614 | cur_drv = get_cur_drv(fdctrl); |
075f5532 HP |
1615 | |
1616 | fdctrl->status0 &= ~(FD_SR0_DS0 | FD_SR0_DS1 | FD_SR0_HEAD); | |
1617 | fdctrl->status0 |= GET_CUR_DRV(fdctrl); | |
1618 | if (cur_drv->head) { | |
1619 | fdctrl->status0 |= FD_SR0_HEAD; | |
1620 | } | |
1621 | fdctrl->status0 |= status0; | |
2fee0088 | 1622 | |
8977f3c1 | 1623 | FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n", |
2fee0088 PH |
1624 | status0, status1, status2, fdctrl->status0); |
1625 | fdctrl->fifo[0] = fdctrl->status0; | |
baca51fa FB |
1626 | fdctrl->fifo[1] = status1; |
1627 | fdctrl->fifo[2] = status2; | |
1628 | fdctrl->fifo[3] = cur_drv->track; | |
1629 | fdctrl->fifo[4] = cur_drv->head; | |
1630 | fdctrl->fifo[5] = cur_drv->sect; | |
1631 | fdctrl->fifo[6] = FD_SECTOR_SC; | |
1632 | fdctrl->data_dir = FD_DIR_READ; | |
441f6692 | 1633 | if (fdctrl->dma_chann != -1 && !(fdctrl->msr & FD_MSR_NONDMA)) { |
c8a35f1c HP |
1634 | IsaDmaClass *k = ISADMA_GET_CLASS(fdctrl->dma); |
1635 | k->release_DREQ(fdctrl->dma, fdctrl->dma_chann); | |
ed5fd2cc | 1636 | } |
b9b3d225 | 1637 | fdctrl->msr |= FD_MSR_RQM | FD_MSR_DIO; |
368df94d | 1638 | fdctrl->msr &= ~FD_MSR_NONDMA; |
34abf9a7 | 1639 | |
83a26013 | 1640 | fdctrl_to_result_phase(fdctrl, 7); |
d497d534 | 1641 | fdctrl_raise_irq(fdctrl); |
8977f3c1 FB |
1642 | } |
1643 | ||
1644 | /* Prepare a data transfer (either DMA or FIFO) */ | |
5c02c033 | 1645 | static void fdctrl_start_transfer(FDCtrl *fdctrl, int direction) |
8977f3c1 | 1646 | { |
5c02c033 | 1647 | FDrive *cur_drv; |
8977f3c1 | 1648 | uint8_t kh, kt, ks; |
8977f3c1 | 1649 | |
cefec4f5 | 1650 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
baca51fa FB |
1651 | cur_drv = get_cur_drv(fdctrl); |
1652 | kt = fdctrl->fifo[2]; | |
1653 | kh = fdctrl->fifo[3]; | |
1654 | ks = fdctrl->fifo[4]; | |
4b19ec0c | 1655 | FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n", |
cefec4f5 | 1656 | GET_CUR_DRV(fdctrl), kh, kt, ks, |
08388273 HP |
1657 | fd_sector_calc(kh, kt, ks, cur_drv->last_sect, |
1658 | NUM_SIDES(cur_drv))); | |
77370520 | 1659 | switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & FD_CONFIG_EIS)) { |
8977f3c1 FB |
1660 | case 2: |
1661 | /* sect too big */ | |
9fea808a | 1662 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, 0x00, 0x00); |
baca51fa FB |
1663 | fdctrl->fifo[3] = kt; |
1664 | fdctrl->fifo[4] = kh; | |
1665 | fdctrl->fifo[5] = ks; | |
8977f3c1 FB |
1666 | return; |
1667 | case 3: | |
1668 | /* track too big */ | |
77370520 | 1669 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, FD_SR1_EC, 0x00); |
baca51fa FB |
1670 | fdctrl->fifo[3] = kt; |
1671 | fdctrl->fifo[4] = kh; | |
1672 | fdctrl->fifo[5] = ks; | |
8977f3c1 FB |
1673 | return; |
1674 | case 4: | |
1675 | /* No seek enabled */ | |
9fea808a | 1676 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, 0x00, 0x00); |
baca51fa FB |
1677 | fdctrl->fifo[3] = kt; |
1678 | fdctrl->fifo[4] = kh; | |
1679 | fdctrl->fifo[5] = ks; | |
8977f3c1 FB |
1680 | return; |
1681 | case 1: | |
d6ed4e21 | 1682 | fdctrl->status0 |= FD_SR0_SEEK; |
8977f3c1 FB |
1683 | break; |
1684 | default: | |
1685 | break; | |
1686 | } | |
b9b3d225 | 1687 | |
844f65d6 HP |
1688 | /* Check the data rate. If the programmed data rate does not match |
1689 | * the currently inserted medium, the operation has to fail. */ | |
1690 | if (fdctrl->check_media_rate && | |
1691 | (fdctrl->dsr & FD_DSR_DRATEMASK) != cur_drv->media_rate) { | |
1692 | FLOPPY_DPRINTF("data rate mismatch (fdc=%d, media=%d)\n", | |
1693 | fdctrl->dsr & FD_DSR_DRATEMASK, cur_drv->media_rate); | |
1694 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, FD_SR1_MA, 0x00); | |
1695 | fdctrl->fifo[3] = kt; | |
1696 | fdctrl->fifo[4] = kh; | |
1697 | fdctrl->fifo[5] = ks; | |
1698 | return; | |
1699 | } | |
1700 | ||
8977f3c1 | 1701 | /* Set the FIFO state */ |
baca51fa FB |
1702 | fdctrl->data_dir = direction; |
1703 | fdctrl->data_pos = 0; | |
27c86e24 | 1704 | assert(fdctrl->msr & FD_MSR_CMDBUSY); |
baca51fa FB |
1705 | if (fdctrl->fifo[0] & 0x80) |
1706 | fdctrl->data_state |= FD_STATE_MULTI; | |
1707 | else | |
1708 | fdctrl->data_state &= ~FD_STATE_MULTI; | |
c83f97b5 | 1709 | if (fdctrl->fifo[5] == 0) { |
baca51fa FB |
1710 | fdctrl->data_len = fdctrl->fifo[8]; |
1711 | } else { | |
4f431960 | 1712 | int tmp; |
3bcb80f1 | 1713 | fdctrl->data_len = 128 << (fdctrl->fifo[5] > 7 ? 7 : fdctrl->fifo[5]); |
771effeb | 1714 | tmp = (fdctrl->fifo[6] - ks + 1); |
baca51fa | 1715 | if (fdctrl->fifo[0] & 0x80) |
771effeb | 1716 | tmp += fdctrl->fifo[6]; |
4f431960 | 1717 | fdctrl->data_len *= tmp; |
baca51fa | 1718 | } |
890fa6be | 1719 | fdctrl->eot = fdctrl->fifo[6]; |
368df94d | 1720 | if (fdctrl->dor & FD_DOR_DMAEN) { |
9e58f172 | 1721 | /* DMA transfer is enabled. */ |
c8a35f1c | 1722 | IsaDmaClass *k = ISADMA_GET_CLASS(fdctrl->dma); |
9e58f172 SS |
1723 | |
1724 | FLOPPY_DPRINTF("direction=%d (%d - %d)\n", | |
1725 | direction, (128 << fdctrl->fifo[5]) * | |
4f431960 | 1726 | (cur_drv->last_sect - ks + 1), fdctrl->data_len); |
9e58f172 SS |
1727 | |
1728 | /* No access is allowed until DMA transfer has completed */ | |
1729 | fdctrl->msr &= ~FD_MSR_RQM; | |
1730 | if (direction != FD_DIR_VERIFY) { | |
1731 | /* | |
1732 | * Now, we just have to wait for the DMA controller to | |
1733 | * recall us... | |
1734 | */ | |
1735 | k->hold_DREQ(fdctrl->dma, fdctrl->dma_chann); | |
1736 | k->schedule(fdctrl->dma); | |
baca51fa | 1737 | } else { |
9e58f172 SS |
1738 | /* Start transfer */ |
1739 | fdctrl_transfer_handler(fdctrl, fdctrl->dma_chann, 0, | |
1740 | fdctrl->data_len); | |
8977f3c1 | 1741 | } |
9e58f172 | 1742 | return; |
8977f3c1 FB |
1743 | } |
1744 | FLOPPY_DPRINTF("start non-DMA transfer\n"); | |
6cc8a11c | 1745 | fdctrl->msr |= FD_MSR_NONDMA | FD_MSR_RQM; |
b9b3d225 BS |
1746 | if (direction != FD_DIR_WRITE) |
1747 | fdctrl->msr |= FD_MSR_DIO; | |
8977f3c1 | 1748 | /* IO based transfer: calculate len */ |
d497d534 | 1749 | fdctrl_raise_irq(fdctrl); |
8977f3c1 FB |
1750 | } |
1751 | ||
1752 | /* Prepare a transfer of deleted data */ | |
5c02c033 | 1753 | static void fdctrl_start_transfer_del(FDCtrl *fdctrl, int direction) |
8977f3c1 | 1754 | { |
cced7a13 | 1755 | qemu_log_mask(LOG_UNIMP, "fdctrl_start_transfer_del() unimplemented\n"); |
77370520 | 1756 | |
8977f3c1 FB |
1757 | /* We don't handle deleted data, |
1758 | * so we don't return *ANYTHING* | |
1759 | */ | |
9fea808a | 1760 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00); |
8977f3c1 FB |
1761 | } |
1762 | ||
1763 | /* handlers for DMA transfers */ | |
85571bc7 FB |
1764 | static int fdctrl_transfer_handler (void *opaque, int nchan, |
1765 | int dma_pos, int dma_len) | |
8977f3c1 | 1766 | { |
5c02c033 BS |
1767 | FDCtrl *fdctrl; |
1768 | FDrive *cur_drv; | |
baca51fa | 1769 | int len, start_pos, rel_pos; |
8977f3c1 | 1770 | uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00; |
c8a35f1c | 1771 | IsaDmaClass *k; |
8977f3c1 | 1772 | |
baca51fa | 1773 | fdctrl = opaque; |
b9b3d225 | 1774 | if (fdctrl->msr & FD_MSR_RQM) { |
8977f3c1 FB |
1775 | FLOPPY_DPRINTF("Not in DMA transfer mode !\n"); |
1776 | return 0; | |
1777 | } | |
c8a35f1c | 1778 | k = ISADMA_GET_CLASS(fdctrl->dma); |
baca51fa FB |
1779 | cur_drv = get_cur_drv(fdctrl); |
1780 | if (fdctrl->data_dir == FD_DIR_SCANE || fdctrl->data_dir == FD_DIR_SCANL || | |
1781 | fdctrl->data_dir == FD_DIR_SCANH) | |
77370520 | 1782 | status2 = FD_SR2_SNS; |
85571bc7 FB |
1783 | if (dma_len > fdctrl->data_len) |
1784 | dma_len = fdctrl->data_len; | |
4be74634 | 1785 | if (cur_drv->blk == NULL) { |
4f431960 | 1786 | if (fdctrl->data_dir == FD_DIR_WRITE) |
9fea808a | 1787 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00); |
4f431960 | 1788 | else |
9fea808a | 1789 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, 0x00, 0x00); |
4f431960 | 1790 | len = 0; |
890fa6be FB |
1791 | goto transfer_error; |
1792 | } | |
baca51fa | 1793 | rel_pos = fdctrl->data_pos % FD_SECTOR_LEN; |
85571bc7 FB |
1794 | for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) { |
1795 | len = dma_len - fdctrl->data_pos; | |
baca51fa FB |
1796 | if (len + rel_pos > FD_SECTOR_LEN) |
1797 | len = FD_SECTOR_LEN - rel_pos; | |
6f7e9aec FB |
1798 | FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x " |
1799 | "(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos, | |
cefec4f5 | 1800 | fdctrl->data_len, GET_CUR_DRV(fdctrl), cur_drv->head, |
baca51fa | 1801 | cur_drv->track, cur_drv->sect, fd_sector(cur_drv), |
9fea808a | 1802 | fd_sector(cur_drv) * FD_SECTOR_LEN); |
baca51fa | 1803 | if (fdctrl->data_dir != FD_DIR_WRITE || |
4f431960 | 1804 | len < FD_SECTOR_LEN || rel_pos != 0) { |
baca51fa | 1805 | /* READ & SCAN commands and realign to a sector for WRITE */ |
a7a5b7c0 EB |
1806 | if (blk_pread(cur_drv->blk, fd_offset(cur_drv), |
1807 | fdctrl->fifo, BDRV_SECTOR_SIZE) < 0) { | |
8977f3c1 FB |
1808 | FLOPPY_DPRINTF("Floppy: error getting sector %d\n", |
1809 | fd_sector(cur_drv)); | |
1810 | /* Sure, image size is too small... */ | |
baca51fa | 1811 | memset(fdctrl->fifo, 0, FD_SECTOR_LEN); |
8977f3c1 | 1812 | } |
890fa6be | 1813 | } |
4f431960 JM |
1814 | switch (fdctrl->data_dir) { |
1815 | case FD_DIR_READ: | |
1816 | /* READ commands */ | |
c8a35f1c HP |
1817 | k->write_memory(fdctrl->dma, nchan, fdctrl->fifo + rel_pos, |
1818 | fdctrl->data_pos, len); | |
4f431960 JM |
1819 | break; |
1820 | case FD_DIR_WRITE: | |
baca51fa | 1821 | /* WRITE commands */ |
8510854e HP |
1822 | if (cur_drv->ro) { |
1823 | /* Handle readonly medium early, no need to do DMA, touch the | |
1824 | * LED or attempt any writes. A real floppy doesn't attempt | |
1825 | * to write to readonly media either. */ | |
1826 | fdctrl_stop_transfer(fdctrl, | |
1827 | FD_SR0_ABNTERM | FD_SR0_SEEK, FD_SR1_NW, | |
1828 | 0x00); | |
1829 | goto transfer_error; | |
1830 | } | |
1831 | ||
c8a35f1c HP |
1832 | k->read_memory(fdctrl->dma, nchan, fdctrl->fifo + rel_pos, |
1833 | fdctrl->data_pos, len); | |
a7a5b7c0 EB |
1834 | if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv), |
1835 | fdctrl->fifo, BDRV_SECTOR_SIZE, 0) < 0) { | |
cced7a13 BS |
1836 | FLOPPY_DPRINTF("error writing sector %d\n", |
1837 | fd_sector(cur_drv)); | |
9fea808a | 1838 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00); |
baca51fa | 1839 | goto transfer_error; |
890fa6be | 1840 | } |
4f431960 | 1841 | break; |
7ea004ed HP |
1842 | case FD_DIR_VERIFY: |
1843 | /* VERIFY commands */ | |
1844 | break; | |
4f431960 JM |
1845 | default: |
1846 | /* SCAN commands */ | |
baca51fa | 1847 | { |
4f431960 | 1848 | uint8_t tmpbuf[FD_SECTOR_LEN]; |
baca51fa | 1849 | int ret; |
c8a35f1c HP |
1850 | k->read_memory(fdctrl->dma, nchan, tmpbuf, fdctrl->data_pos, |
1851 | len); | |
baca51fa | 1852 | ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len); |
8977f3c1 | 1853 | if (ret == 0) { |
77370520 | 1854 | status2 = FD_SR2_SEH; |
8977f3c1 FB |
1855 | goto end_transfer; |
1856 | } | |
baca51fa FB |
1857 | if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) || |
1858 | (ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) { | |
8977f3c1 FB |
1859 | status2 = 0x00; |
1860 | goto end_transfer; | |
1861 | } | |
1862 | } | |
4f431960 | 1863 | break; |
8977f3c1 | 1864 | } |
4f431960 JM |
1865 | fdctrl->data_pos += len; |
1866 | rel_pos = fdctrl->data_pos % FD_SECTOR_LEN; | |
baca51fa | 1867 | if (rel_pos == 0) { |
8977f3c1 | 1868 | /* Seek to next sector */ |
746d6de7 BS |
1869 | if (!fdctrl_seek_to_next_sect(fdctrl, cur_drv)) |
1870 | break; | |
8977f3c1 FB |
1871 | } |
1872 | } | |
4f431960 | 1873 | end_transfer: |
baca51fa FB |
1874 | len = fdctrl->data_pos - start_pos; |
1875 | FLOPPY_DPRINTF("end transfer %d %d %d\n", | |
4f431960 | 1876 | fdctrl->data_pos, len, fdctrl->data_len); |
baca51fa FB |
1877 | if (fdctrl->data_dir == FD_DIR_SCANE || |
1878 | fdctrl->data_dir == FD_DIR_SCANL || | |
1879 | fdctrl->data_dir == FD_DIR_SCANH) | |
77370520 | 1880 | status2 = FD_SR2_SEH; |
baca51fa | 1881 | fdctrl->data_len -= len; |
890fa6be | 1882 | fdctrl_stop_transfer(fdctrl, status0, status1, status2); |
4f431960 | 1883 | transfer_error: |
8977f3c1 | 1884 | |
baca51fa | 1885 | return len; |
8977f3c1 FB |
1886 | } |
1887 | ||
8977f3c1 | 1888 | /* Data register : 0x05 */ |
5c02c033 | 1889 | static uint32_t fdctrl_read_data(FDCtrl *fdctrl) |
8977f3c1 | 1890 | { |
5c02c033 | 1891 | FDrive *cur_drv; |
8977f3c1 | 1892 | uint32_t retval = 0; |
e9077462 | 1893 | uint32_t pos; |
8977f3c1 | 1894 | |
baca51fa | 1895 | cur_drv = get_cur_drv(fdctrl); |
b9b3d225 BS |
1896 | fdctrl->dsr &= ~FD_DSR_PWRDOWN; |
1897 | if (!(fdctrl->msr & FD_MSR_RQM) || !(fdctrl->msr & FD_MSR_DIO)) { | |
cced7a13 | 1898 | FLOPPY_DPRINTF("error: controller not ready for reading\n"); |
8977f3c1 FB |
1899 | return 0; |
1900 | } | |
f6c2d1d8 KW |
1901 | |
1902 | /* If data_len spans multiple sectors, the current position in the FIFO | |
1903 | * wraps around while fdctrl->data_pos is the real position in the whole | |
1904 | * request. */ | |
baca51fa | 1905 | pos = fdctrl->data_pos; |
e9077462 | 1906 | pos %= FD_SECTOR_LEN; |
f6c2d1d8 KW |
1907 | |
1908 | switch (fdctrl->phase) { | |
1909 | case FD_PHASE_EXECUTION: | |
1910 | assert(fdctrl->msr & FD_MSR_NONDMA); | |
8977f3c1 | 1911 | if (pos == 0) { |
746d6de7 BS |
1912 | if (fdctrl->data_pos != 0) |
1913 | if (!fdctrl_seek_to_next_sect(fdctrl, cur_drv)) { | |
1914 | FLOPPY_DPRINTF("error seeking to next sector %d\n", | |
1915 | fd_sector(cur_drv)); | |
1916 | return 0; | |
1917 | } | |
a7a5b7c0 EB |
1918 | if (blk_pread(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo, |
1919 | BDRV_SECTOR_SIZE) | |
4be74634 | 1920 | < 0) { |
77370520 BS |
1921 | FLOPPY_DPRINTF("error getting sector %d\n", |
1922 | fd_sector(cur_drv)); | |
1923 | /* Sure, image size is too small... */ | |
1924 | memset(fdctrl->fifo, 0, FD_SECTOR_LEN); | |
1925 | } | |
8977f3c1 | 1926 | } |
f6c2d1d8 KW |
1927 | |
1928 | if (++fdctrl->data_pos == fdctrl->data_len) { | |
6cc8a11c | 1929 | fdctrl->msr &= ~FD_MSR_RQM; |
c5139bd9 | 1930 | fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00); |
f6c2d1d8 KW |
1931 | } |
1932 | break; | |
1933 | ||
1934 | case FD_PHASE_RESULT: | |
1935 | assert(!(fdctrl->msr & FD_MSR_NONDMA)); | |
1936 | if (++fdctrl->data_pos == fdctrl->data_len) { | |
6cc8a11c | 1937 | fdctrl->msr &= ~FD_MSR_RQM; |
07e415f2 | 1938 | fdctrl_to_command_phase(fdctrl); |
ed5fd2cc FB |
1939 | fdctrl_reset_irq(fdctrl); |
1940 | } | |
f6c2d1d8 KW |
1941 | break; |
1942 | ||
1943 | case FD_PHASE_COMMAND: | |
1944 | default: | |
1945 | abort(); | |
8977f3c1 | 1946 | } |
f6c2d1d8 KW |
1947 | |
1948 | retval = fdctrl->fifo[pos]; | |
8977f3c1 FB |
1949 | FLOPPY_DPRINTF("data register: 0x%02x\n", retval); |
1950 | ||
1951 | return retval; | |
1952 | } | |
1953 | ||
5c02c033 | 1954 | static void fdctrl_format_sector(FDCtrl *fdctrl) |
8977f3c1 | 1955 | { |
5c02c033 | 1956 | FDrive *cur_drv; |
baca51fa | 1957 | uint8_t kh, kt, ks; |
8977f3c1 | 1958 | |
cefec4f5 | 1959 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
baca51fa FB |
1960 | cur_drv = get_cur_drv(fdctrl); |
1961 | kt = fdctrl->fifo[6]; | |
1962 | kh = fdctrl->fifo[7]; | |
1963 | ks = fdctrl->fifo[8]; | |
1964 | FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n", | |
cefec4f5 | 1965 | GET_CUR_DRV(fdctrl), kh, kt, ks, |
08388273 HP |
1966 | fd_sector_calc(kh, kt, ks, cur_drv->last_sect, |
1967 | NUM_SIDES(cur_drv))); | |
9fea808a | 1968 | switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & FD_CONFIG_EIS)) { |
baca51fa FB |
1969 | case 2: |
1970 | /* sect too big */ | |
9fea808a | 1971 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, 0x00, 0x00); |
baca51fa FB |
1972 | fdctrl->fifo[3] = kt; |
1973 | fdctrl->fifo[4] = kh; | |
1974 | fdctrl->fifo[5] = ks; | |
1975 | return; | |
1976 | case 3: | |
1977 | /* track too big */ | |
77370520 | 1978 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, FD_SR1_EC, 0x00); |
baca51fa FB |
1979 | fdctrl->fifo[3] = kt; |
1980 | fdctrl->fifo[4] = kh; | |
1981 | fdctrl->fifo[5] = ks; | |
1982 | return; | |
1983 | case 4: | |
1984 | /* No seek enabled */ | |
9fea808a | 1985 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, 0x00, 0x00); |
baca51fa FB |
1986 | fdctrl->fifo[3] = kt; |
1987 | fdctrl->fifo[4] = kh; | |
1988 | fdctrl->fifo[5] = ks; | |
1989 | return; | |
1990 | case 1: | |
cd30b53d | 1991 | fdctrl->status0 |= FD_SR0_SEEK; |
baca51fa FB |
1992 | break; |
1993 | default: | |
1994 | break; | |
1995 | } | |
1996 | memset(fdctrl->fifo, 0, FD_SECTOR_LEN); | |
4be74634 | 1997 | if (cur_drv->blk == NULL || |
a7a5b7c0 EB |
1998 | blk_pwrite(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo, |
1999 | BDRV_SECTOR_SIZE, 0) < 0) { | |
cced7a13 | 2000 | FLOPPY_DPRINTF("error formatting sector %d\n", fd_sector(cur_drv)); |
9fea808a | 2001 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM | FD_SR0_SEEK, 0x00, 0x00); |
baca51fa | 2002 | } else { |
4f431960 JM |
2003 | if (cur_drv->sect == cur_drv->last_sect) { |
2004 | fdctrl->data_state &= ~FD_STATE_FORMAT; | |
2005 | /* Last sector done */ | |
cd30b53d | 2006 | fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00); |
4f431960 JM |
2007 | } else { |
2008 | /* More to do */ | |
2009 | fdctrl->data_pos = 0; | |
2010 | fdctrl->data_len = 4; | |
2011 | } | |
baca51fa FB |
2012 | } |
2013 | } | |
2014 | ||
5c02c033 | 2015 | static void fdctrl_handle_lock(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2016 | { |
2017 | fdctrl->lock = (fdctrl->fifo[0] & 0x80) ? 1 : 0; | |
2018 | fdctrl->fifo[0] = fdctrl->lock << 4; | |
83a26013 | 2019 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2020 | } |
2021 | ||
5c02c033 | 2022 | static void fdctrl_handle_dumpreg(FDCtrl *fdctrl, int direction) |
65cef780 | 2023 | { |
5c02c033 | 2024 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 BS |
2025 | |
2026 | /* Drives position */ | |
2027 | fdctrl->fifo[0] = drv0(fdctrl)->track; | |
2028 | fdctrl->fifo[1] = drv1(fdctrl)->track; | |
78ae820c BS |
2029 | #if MAX_FD == 4 |
2030 | fdctrl->fifo[2] = drv2(fdctrl)->track; | |
2031 | fdctrl->fifo[3] = drv3(fdctrl)->track; | |
2032 | #else | |
65cef780 BS |
2033 | fdctrl->fifo[2] = 0; |
2034 | fdctrl->fifo[3] = 0; | |
78ae820c | 2035 | #endif |
65cef780 BS |
2036 | /* timers */ |
2037 | fdctrl->fifo[4] = fdctrl->timer0; | |
368df94d | 2038 | fdctrl->fifo[5] = (fdctrl->timer1 << 1) | (fdctrl->dor & FD_DOR_DMAEN ? 1 : 0); |
65cef780 BS |
2039 | fdctrl->fifo[6] = cur_drv->last_sect; |
2040 | fdctrl->fifo[7] = (fdctrl->lock << 7) | | |
2041 | (cur_drv->perpendicular << 2); | |
2042 | fdctrl->fifo[8] = fdctrl->config; | |
2043 | fdctrl->fifo[9] = fdctrl->precomp_trk; | |
83a26013 | 2044 | fdctrl_to_result_phase(fdctrl, 10); |
65cef780 BS |
2045 | } |
2046 | ||
5c02c033 | 2047 | static void fdctrl_handle_version(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2048 | { |
2049 | /* Controller's version */ | |
2050 | fdctrl->fifo[0] = fdctrl->version; | |
83a26013 | 2051 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2052 | } |
2053 | ||
5c02c033 | 2054 | static void fdctrl_handle_partid(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2055 | { |
2056 | fdctrl->fifo[0] = 0x41; /* Stepping 1 */ | |
83a26013 | 2057 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2058 | } |
2059 | ||
5c02c033 | 2060 | static void fdctrl_handle_restore(FDCtrl *fdctrl, int direction) |
65cef780 | 2061 | { |
5c02c033 | 2062 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 BS |
2063 | |
2064 | /* Drives position */ | |
2065 | drv0(fdctrl)->track = fdctrl->fifo[3]; | |
2066 | drv1(fdctrl)->track = fdctrl->fifo[4]; | |
78ae820c BS |
2067 | #if MAX_FD == 4 |
2068 | drv2(fdctrl)->track = fdctrl->fifo[5]; | |
2069 | drv3(fdctrl)->track = fdctrl->fifo[6]; | |
2070 | #endif | |
65cef780 BS |
2071 | /* timers */ |
2072 | fdctrl->timer0 = fdctrl->fifo[7]; | |
2073 | fdctrl->timer1 = fdctrl->fifo[8]; | |
2074 | cur_drv->last_sect = fdctrl->fifo[9]; | |
2075 | fdctrl->lock = fdctrl->fifo[10] >> 7; | |
2076 | cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF; | |
2077 | fdctrl->config = fdctrl->fifo[11]; | |
2078 | fdctrl->precomp_trk = fdctrl->fifo[12]; | |
2079 | fdctrl->pwrd = fdctrl->fifo[13]; | |
07e415f2 | 2080 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2081 | } |
2082 | ||
5c02c033 | 2083 | static void fdctrl_handle_save(FDCtrl *fdctrl, int direction) |
65cef780 | 2084 | { |
5c02c033 | 2085 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 BS |
2086 | |
2087 | fdctrl->fifo[0] = 0; | |
2088 | fdctrl->fifo[1] = 0; | |
2089 | /* Drives position */ | |
2090 | fdctrl->fifo[2] = drv0(fdctrl)->track; | |
2091 | fdctrl->fifo[3] = drv1(fdctrl)->track; | |
78ae820c BS |
2092 | #if MAX_FD == 4 |
2093 | fdctrl->fifo[4] = drv2(fdctrl)->track; | |
2094 | fdctrl->fifo[5] = drv3(fdctrl)->track; | |
2095 | #else | |
65cef780 BS |
2096 | fdctrl->fifo[4] = 0; |
2097 | fdctrl->fifo[5] = 0; | |
78ae820c | 2098 | #endif |
65cef780 BS |
2099 | /* timers */ |
2100 | fdctrl->fifo[6] = fdctrl->timer0; | |
2101 | fdctrl->fifo[7] = fdctrl->timer1; | |
2102 | fdctrl->fifo[8] = cur_drv->last_sect; | |
2103 | fdctrl->fifo[9] = (fdctrl->lock << 7) | | |
2104 | (cur_drv->perpendicular << 2); | |
2105 | fdctrl->fifo[10] = fdctrl->config; | |
2106 | fdctrl->fifo[11] = fdctrl->precomp_trk; | |
2107 | fdctrl->fifo[12] = fdctrl->pwrd; | |
2108 | fdctrl->fifo[13] = 0; | |
2109 | fdctrl->fifo[14] = 0; | |
83a26013 | 2110 | fdctrl_to_result_phase(fdctrl, 15); |
65cef780 BS |
2111 | } |
2112 | ||
5c02c033 | 2113 | static void fdctrl_handle_readid(FDCtrl *fdctrl, int direction) |
65cef780 | 2114 | { |
5c02c033 | 2115 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 | 2116 | |
65cef780 | 2117 | cur_drv->head = (fdctrl->fifo[1] >> 2) & 1; |
73bcb24d RS |
2118 | timer_mod(fdctrl->result_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + |
2119 | (NANOSECONDS_PER_SECOND / 50)); | |
65cef780 BS |
2120 | } |
2121 | ||
5c02c033 | 2122 | static void fdctrl_handle_format_track(FDCtrl *fdctrl, int direction) |
65cef780 | 2123 | { |
5c02c033 | 2124 | FDrive *cur_drv; |
65cef780 | 2125 | |
cefec4f5 | 2126 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 BS |
2127 | cur_drv = get_cur_drv(fdctrl); |
2128 | fdctrl->data_state |= FD_STATE_FORMAT; | |
2129 | if (fdctrl->fifo[0] & 0x80) | |
2130 | fdctrl->data_state |= FD_STATE_MULTI; | |
2131 | else | |
2132 | fdctrl->data_state &= ~FD_STATE_MULTI; | |
65cef780 BS |
2133 | cur_drv->bps = |
2134 | fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2]; | |
2135 | #if 0 | |
2136 | cur_drv->last_sect = | |
2137 | cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] : | |
2138 | fdctrl->fifo[3] / 2; | |
2139 | #else | |
2140 | cur_drv->last_sect = fdctrl->fifo[3]; | |
2141 | #endif | |
2142 | /* TODO: implement format using DMA expected by the Bochs BIOS | |
2143 | * and Linux fdformat (read 3 bytes per sector via DMA and fill | |
2144 | * the sector with the specified fill byte | |
2145 | */ | |
2146 | fdctrl->data_state &= ~FD_STATE_FORMAT; | |
2147 | fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00); | |
2148 | } | |
2149 | ||
5c02c033 | 2150 | static void fdctrl_handle_specify(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2151 | { |
2152 | fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF; | |
2153 | fdctrl->timer1 = fdctrl->fifo[2] >> 1; | |
368df94d BS |
2154 | if (fdctrl->fifo[2] & 1) |
2155 | fdctrl->dor &= ~FD_DOR_DMAEN; | |
2156 | else | |
2157 | fdctrl->dor |= FD_DOR_DMAEN; | |
65cef780 | 2158 | /* No result back */ |
07e415f2 | 2159 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2160 | } |
2161 | ||
5c02c033 | 2162 | static void fdctrl_handle_sense_drive_status(FDCtrl *fdctrl, int direction) |
65cef780 | 2163 | { |
5c02c033 | 2164 | FDrive *cur_drv; |
65cef780 | 2165 | |
cefec4f5 | 2166 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 BS |
2167 | cur_drv = get_cur_drv(fdctrl); |
2168 | cur_drv->head = (fdctrl->fifo[1] >> 2) & 1; | |
2169 | /* 1 Byte status back */ | |
2170 | fdctrl->fifo[0] = (cur_drv->ro << 6) | | |
2171 | (cur_drv->track == 0 ? 0x10 : 0x00) | | |
2172 | (cur_drv->head << 2) | | |
cefec4f5 | 2173 | GET_CUR_DRV(fdctrl) | |
65cef780 | 2174 | 0x28; |
83a26013 | 2175 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2176 | } |
2177 | ||
5c02c033 | 2178 | static void fdctrl_handle_recalibrate(FDCtrl *fdctrl, int direction) |
65cef780 | 2179 | { |
5c02c033 | 2180 | FDrive *cur_drv; |
65cef780 | 2181 | |
cefec4f5 | 2182 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 BS |
2183 | cur_drv = get_cur_drv(fdctrl); |
2184 | fd_recalibrate(cur_drv); | |
07e415f2 | 2185 | fdctrl_to_command_phase(fdctrl); |
65cef780 | 2186 | /* Raise Interrupt */ |
d497d534 HP |
2187 | fdctrl->status0 |= FD_SR0_SEEK; |
2188 | fdctrl_raise_irq(fdctrl); | |
65cef780 BS |
2189 | } |
2190 | ||
5c02c033 | 2191 | static void fdctrl_handle_sense_interrupt_status(FDCtrl *fdctrl, int direction) |
65cef780 | 2192 | { |
5c02c033 | 2193 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 | 2194 | |
2fee0088 | 2195 | if (fdctrl->reset_sensei > 0) { |
f2d81b33 BS |
2196 | fdctrl->fifo[0] = |
2197 | FD_SR0_RDYCHG + FD_RESET_SENSEI_COUNT - fdctrl->reset_sensei; | |
2198 | fdctrl->reset_sensei--; | |
2fee0088 PH |
2199 | } else if (!(fdctrl->sra & FD_SRA_INTPEND)) { |
2200 | fdctrl->fifo[0] = FD_SR0_INVCMD; | |
83a26013 | 2201 | fdctrl_to_result_phase(fdctrl, 1); |
2fee0088 | 2202 | return; |
f2d81b33 | 2203 | } else { |
f2d81b33 | 2204 | fdctrl->fifo[0] = |
2fee0088 PH |
2205 | (fdctrl->status0 & ~(FD_SR0_HEAD | FD_SR0_DS1 | FD_SR0_DS0)) |
2206 | | GET_CUR_DRV(fdctrl); | |
f2d81b33 BS |
2207 | } |
2208 | ||
65cef780 | 2209 | fdctrl->fifo[1] = cur_drv->track; |
83a26013 | 2210 | fdctrl_to_result_phase(fdctrl, 2); |
65cef780 | 2211 | fdctrl_reset_irq(fdctrl); |
77370520 | 2212 | fdctrl->status0 = FD_SR0_RDYCHG; |
65cef780 BS |
2213 | } |
2214 | ||
5c02c033 | 2215 | static void fdctrl_handle_seek(FDCtrl *fdctrl, int direction) |
65cef780 | 2216 | { |
5c02c033 | 2217 | FDrive *cur_drv; |
65cef780 | 2218 | |
cefec4f5 | 2219 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 | 2220 | cur_drv = get_cur_drv(fdctrl); |
07e415f2 | 2221 | fdctrl_to_command_phase(fdctrl); |
b072a3c8 HP |
2222 | /* The seek command just sends step pulses to the drive and doesn't care if |
2223 | * there is a medium inserted of if it's banging the head against the drive. | |
2224 | */ | |
6be01b1e | 2225 | fd_seek(cur_drv, cur_drv->head, fdctrl->fifo[2], cur_drv->sect, 1); |
b072a3c8 | 2226 | /* Raise Interrupt */ |
d497d534 HP |
2227 | fdctrl->status0 |= FD_SR0_SEEK; |
2228 | fdctrl_raise_irq(fdctrl); | |
65cef780 BS |
2229 | } |
2230 | ||
5c02c033 | 2231 | static void fdctrl_handle_perpendicular_mode(FDCtrl *fdctrl, int direction) |
65cef780 | 2232 | { |
5c02c033 | 2233 | FDrive *cur_drv = get_cur_drv(fdctrl); |
65cef780 BS |
2234 | |
2235 | if (fdctrl->fifo[1] & 0x80) | |
2236 | cur_drv->perpendicular = fdctrl->fifo[1] & 0x7; | |
2237 | /* No result back */ | |
07e415f2 | 2238 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2239 | } |
2240 | ||
5c02c033 | 2241 | static void fdctrl_handle_configure(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2242 | { |
2243 | fdctrl->config = fdctrl->fifo[2]; | |
2244 | fdctrl->precomp_trk = fdctrl->fifo[3]; | |
2245 | /* No result back */ | |
07e415f2 | 2246 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2247 | } |
2248 | ||
5c02c033 | 2249 | static void fdctrl_handle_powerdown_mode(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2250 | { |
2251 | fdctrl->pwrd = fdctrl->fifo[1]; | |
2252 | fdctrl->fifo[0] = fdctrl->fifo[1]; | |
83a26013 | 2253 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2254 | } |
2255 | ||
5c02c033 | 2256 | static void fdctrl_handle_option(FDCtrl *fdctrl, int direction) |
65cef780 BS |
2257 | { |
2258 | /* No result back */ | |
07e415f2 | 2259 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2260 | } |
2261 | ||
5c02c033 | 2262 | static void fdctrl_handle_drive_specification_command(FDCtrl *fdctrl, int direction) |
65cef780 | 2263 | { |
5c02c033 | 2264 | FDrive *cur_drv = get_cur_drv(fdctrl); |
e9077462 | 2265 | uint32_t pos; |
65cef780 | 2266 | |
e9077462 PM |
2267 | pos = fdctrl->data_pos - 1; |
2268 | pos %= FD_SECTOR_LEN; | |
2269 | if (fdctrl->fifo[pos] & 0x80) { | |
65cef780 | 2270 | /* Command parameters done */ |
e9077462 | 2271 | if (fdctrl->fifo[pos] & 0x40) { |
65cef780 BS |
2272 | fdctrl->fifo[0] = fdctrl->fifo[1]; |
2273 | fdctrl->fifo[2] = 0; | |
2274 | fdctrl->fifo[3] = 0; | |
83a26013 | 2275 | fdctrl_to_result_phase(fdctrl, 4); |
65cef780 | 2276 | } else { |
07e415f2 | 2277 | fdctrl_to_command_phase(fdctrl); |
65cef780 BS |
2278 | } |
2279 | } else if (fdctrl->data_len > 7) { | |
2280 | /* ERROR */ | |
2281 | fdctrl->fifo[0] = 0x80 | | |
cefec4f5 | 2282 | (cur_drv->head << 2) | GET_CUR_DRV(fdctrl); |
83a26013 | 2283 | fdctrl_to_result_phase(fdctrl, 1); |
65cef780 BS |
2284 | } |
2285 | } | |
2286 | ||
6d013772 | 2287 | static void fdctrl_handle_relative_seek_in(FDCtrl *fdctrl, int direction) |
65cef780 | 2288 | { |
5c02c033 | 2289 | FDrive *cur_drv; |
65cef780 | 2290 | |
cefec4f5 | 2291 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 | 2292 | cur_drv = get_cur_drv(fdctrl); |
65cef780 | 2293 | if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) { |
6be01b1e PH |
2294 | fd_seek(cur_drv, cur_drv->head, cur_drv->max_track - 1, |
2295 | cur_drv->sect, 1); | |
65cef780 | 2296 | } else { |
6d013772 PH |
2297 | fd_seek(cur_drv, cur_drv->head, |
2298 | cur_drv->track + fdctrl->fifo[2], cur_drv->sect, 1); | |
65cef780 | 2299 | } |
07e415f2 | 2300 | fdctrl_to_command_phase(fdctrl); |
77370520 | 2301 | /* Raise Interrupt */ |
d497d534 HP |
2302 | fdctrl->status0 |= FD_SR0_SEEK; |
2303 | fdctrl_raise_irq(fdctrl); | |
65cef780 BS |
2304 | } |
2305 | ||
6d013772 | 2306 | static void fdctrl_handle_relative_seek_out(FDCtrl *fdctrl, int direction) |
65cef780 | 2307 | { |
5c02c033 | 2308 | FDrive *cur_drv; |
65cef780 | 2309 | |
cefec4f5 | 2310 | SET_CUR_DRV(fdctrl, fdctrl->fifo[1] & FD_DOR_SELMASK); |
65cef780 | 2311 | cur_drv = get_cur_drv(fdctrl); |
65cef780 | 2312 | if (fdctrl->fifo[2] > cur_drv->track) { |
6be01b1e | 2313 | fd_seek(cur_drv, cur_drv->head, 0, cur_drv->sect, 1); |
65cef780 | 2314 | } else { |
6d013772 PH |
2315 | fd_seek(cur_drv, cur_drv->head, |
2316 | cur_drv->track - fdctrl->fifo[2], cur_drv->sect, 1); | |
65cef780 | 2317 | } |
07e415f2 | 2318 | fdctrl_to_command_phase(fdctrl); |
65cef780 | 2319 | /* Raise Interrupt */ |
d497d534 HP |
2320 | fdctrl->status0 |= FD_SR0_SEEK; |
2321 | fdctrl_raise_irq(fdctrl); | |
65cef780 BS |
2322 | } |
2323 | ||
85d291a0 KW |
2324 | /* |
2325 | * Handlers for the execution phase of each command | |
2326 | */ | |
d275b33d | 2327 | typedef struct FDCtrlCommand { |
678803ab BS |
2328 | uint8_t value; |
2329 | uint8_t mask; | |
2330 | const char* name; | |
2331 | int parameters; | |
5c02c033 | 2332 | void (*handler)(FDCtrl *fdctrl, int direction); |
678803ab | 2333 | int direction; |
d275b33d KW |
2334 | } FDCtrlCommand; |
2335 | ||
2336 | static const FDCtrlCommand handlers[] = { | |
678803ab BS |
2337 | { FD_CMD_READ, 0x1f, "READ", 8, fdctrl_start_transfer, FD_DIR_READ }, |
2338 | { FD_CMD_WRITE, 0x3f, "WRITE", 8, fdctrl_start_transfer, FD_DIR_WRITE }, | |
2339 | { FD_CMD_SEEK, 0xff, "SEEK", 2, fdctrl_handle_seek }, | |
2340 | { FD_CMD_SENSE_INTERRUPT_STATUS, 0xff, "SENSE INTERRUPT STATUS", 0, fdctrl_handle_sense_interrupt_status }, | |
2341 | { FD_CMD_RECALIBRATE, 0xff, "RECALIBRATE", 1, fdctrl_handle_recalibrate }, | |
2342 | { FD_CMD_FORMAT_TRACK, 0xbf, "FORMAT TRACK", 5, fdctrl_handle_format_track }, | |
2343 | { FD_CMD_READ_TRACK, 0xbf, "READ TRACK", 8, fdctrl_start_transfer, FD_DIR_READ }, | |
2344 | { FD_CMD_RESTORE, 0xff, "RESTORE", 17, fdctrl_handle_restore }, /* part of READ DELETED DATA */ | |
2345 | { FD_CMD_SAVE, 0xff, "SAVE", 0, fdctrl_handle_save }, /* part of READ DELETED DATA */ | |
2346 | { FD_CMD_READ_DELETED, 0x1f, "READ DELETED DATA", 8, fdctrl_start_transfer_del, FD_DIR_READ }, | |
2347 | { FD_CMD_SCAN_EQUAL, 0x1f, "SCAN EQUAL", 8, fdctrl_start_transfer, FD_DIR_SCANE }, | |
7ea004ed | 2348 | { FD_CMD_VERIFY, 0x1f, "VERIFY", 8, fdctrl_start_transfer, FD_DIR_VERIFY }, |
678803ab BS |
2349 | { FD_CMD_SCAN_LOW_OR_EQUAL, 0x1f, "SCAN LOW OR EQUAL", 8, fdctrl_start_transfer, FD_DIR_SCANL }, |
2350 | { FD_CMD_SCAN_HIGH_OR_EQUAL, 0x1f, "SCAN HIGH OR EQUAL", 8, fdctrl_start_transfer, FD_DIR_SCANH }, | |
2351 | { FD_CMD_WRITE_DELETED, 0x3f, "WRITE DELETED DATA", 8, fdctrl_start_transfer_del, FD_DIR_WRITE }, | |
2352 | { FD_CMD_READ_ID, 0xbf, "READ ID", 1, fdctrl_handle_readid }, | |
2353 | { FD_CMD_SPECIFY, 0xff, "SPECIFY", 2, fdctrl_handle_specify }, | |
2354 | { FD_CMD_SENSE_DRIVE_STATUS, 0xff, "SENSE DRIVE STATUS", 1, fdctrl_handle_sense_drive_status }, | |
2355 | { FD_CMD_PERPENDICULAR_MODE, 0xff, "PERPENDICULAR MODE", 1, fdctrl_handle_perpendicular_mode }, | |
2356 | { FD_CMD_CONFIGURE, 0xff, "CONFIGURE", 3, fdctrl_handle_configure }, | |
2357 | { FD_CMD_POWERDOWN_MODE, 0xff, "POWERDOWN MODE", 2, fdctrl_handle_powerdown_mode }, | |
2358 | { FD_CMD_OPTION, 0xff, "OPTION", 1, fdctrl_handle_option }, | |
2359 | { FD_CMD_DRIVE_SPECIFICATION_COMMAND, 0xff, "DRIVE SPECIFICATION COMMAND", 5, fdctrl_handle_drive_specification_command }, | |
2360 | { FD_CMD_RELATIVE_SEEK_OUT, 0xff, "RELATIVE SEEK OUT", 2, fdctrl_handle_relative_seek_out }, | |
2361 | { FD_CMD_FORMAT_AND_WRITE, 0xff, "FORMAT AND WRITE", 10, fdctrl_unimplemented }, | |
2362 | { FD_CMD_RELATIVE_SEEK_IN, 0xff, "RELATIVE SEEK IN", 2, fdctrl_handle_relative_seek_in }, | |
2363 | { FD_CMD_LOCK, 0x7f, "LOCK", 0, fdctrl_handle_lock }, | |
2364 | { FD_CMD_DUMPREG, 0xff, "DUMPREG", 0, fdctrl_handle_dumpreg }, | |
2365 | { FD_CMD_VERSION, 0xff, "VERSION", 0, fdctrl_handle_version }, | |
2366 | { FD_CMD_PART_ID, 0xff, "PART ID", 0, fdctrl_handle_partid }, | |
2367 | { FD_CMD_WRITE, 0x1f, "WRITE (BeOS)", 8, fdctrl_start_transfer, FD_DIR_WRITE }, /* not in specification ; BeOS 4.5 bug */ | |
2368 | { 0, 0, "unknown", 0, fdctrl_unimplemented }, /* default handler */ | |
2369 | }; | |
2370 | /* Associate command to an index in the 'handlers' array */ | |
2371 | static uint8_t command_to_handler[256]; | |
2372 | ||
d275b33d KW |
2373 | static const FDCtrlCommand *get_command(uint8_t cmd) |
2374 | { | |
2375 | int idx; | |
2376 | ||
2377 | idx = command_to_handler[cmd]; | |
2378 | FLOPPY_DPRINTF("%s command\n", handlers[idx].name); | |
2379 | return &handlers[idx]; | |
2380 | } | |
2381 | ||
5c02c033 | 2382 | static void fdctrl_write_data(FDCtrl *fdctrl, uint32_t value) |
baca51fa | 2383 | { |
5c02c033 | 2384 | FDrive *cur_drv; |
d275b33d | 2385 | const FDCtrlCommand *cmd; |
e9077462 | 2386 | uint32_t pos; |
baca51fa | 2387 | |
8977f3c1 | 2388 | /* Reset mode */ |
1c346df2 | 2389 | if (!(fdctrl->dor & FD_DOR_nRESET)) { |
4b19ec0c | 2390 | FLOPPY_DPRINTF("Floppy controller in RESET state !\n"); |
8977f3c1 FB |
2391 | return; |
2392 | } | |
b9b3d225 | 2393 | if (!(fdctrl->msr & FD_MSR_RQM) || (fdctrl->msr & FD_MSR_DIO)) { |
cced7a13 | 2394 | FLOPPY_DPRINTF("error: controller not ready for writing\n"); |
8977f3c1 FB |
2395 | return; |
2396 | } | |
b9b3d225 | 2397 | fdctrl->dsr &= ~FD_DSR_PWRDOWN; |
5b0a25e8 | 2398 | |
d275b33d KW |
2399 | FLOPPY_DPRINTF("%s: %02x\n", __func__, value); |
2400 | ||
2401 | /* If data_len spans multiple sectors, the current position in the FIFO | |
2402 | * wraps around while fdctrl->data_pos is the real position in the whole | |
2403 | * request. */ | |
2404 | pos = fdctrl->data_pos++; | |
2405 | pos %= FD_SECTOR_LEN; | |
2406 | fdctrl->fifo[pos] = value; | |
2407 | ||
6cc8a11c KW |
2408 | if (fdctrl->data_pos == fdctrl->data_len) { |
2409 | fdctrl->msr &= ~FD_MSR_RQM; | |
2410 | } | |
2411 | ||
5b0a25e8 KW |
2412 | switch (fdctrl->phase) { |
2413 | case FD_PHASE_EXECUTION: | |
2414 | /* For DMA requests, RQM should be cleared during execution phase, so | |
2415 | * we would have errored out above. */ | |
2416 | assert(fdctrl->msr & FD_MSR_NONDMA); | |
d275b33d | 2417 | |
8977f3c1 | 2418 | /* FIFO data write */ |
b3bc1540 | 2419 | if (pos == FD_SECTOR_LEN - 1 || |
baca51fa | 2420 | fdctrl->data_pos == fdctrl->data_len) { |
77370520 | 2421 | cur_drv = get_cur_drv(fdctrl); |
a7a5b7c0 EB |
2422 | if (blk_pwrite(cur_drv->blk, fd_offset(cur_drv), fdctrl->fifo, |
2423 | BDRV_SECTOR_SIZE, 0) < 0) { | |
cced7a13 BS |
2424 | FLOPPY_DPRINTF("error writing sector %d\n", |
2425 | fd_sector(cur_drv)); | |
5b0a25e8 | 2426 | break; |
77370520 | 2427 | } |
746d6de7 BS |
2428 | if (!fdctrl_seek_to_next_sect(fdctrl, cur_drv)) { |
2429 | FLOPPY_DPRINTF("error seeking to next sector %d\n", | |
2430 | fd_sector(cur_drv)); | |
5b0a25e8 | 2431 | break; |
746d6de7 | 2432 | } |
8977f3c1 | 2433 | } |
d275b33d KW |
2434 | |
2435 | /* Switch to result phase when done with the transfer */ | |
2436 | if (fdctrl->data_pos == fdctrl->data_len) { | |
c5139bd9 | 2437 | fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00); |
d275b33d | 2438 | } |
5b0a25e8 | 2439 | break; |
678803ab | 2440 | |
5b0a25e8 KW |
2441 | case FD_PHASE_COMMAND: |
2442 | assert(!(fdctrl->msr & FD_MSR_NONDMA)); | |
d275b33d | 2443 | assert(fdctrl->data_pos < FD_SECTOR_LEN); |
5b0a25e8 | 2444 | |
d275b33d KW |
2445 | if (pos == 0) { |
2446 | /* The first byte specifies the command. Now we start reading | |
2447 | * as many parameters as this command requires. */ | |
2448 | cmd = get_command(value); | |
2449 | fdctrl->data_len = cmd->parameters + 1; | |
6cc8a11c KW |
2450 | if (cmd->parameters) { |
2451 | fdctrl->msr |= FD_MSR_RQM; | |
2452 | } | |
5b0a25e8 | 2453 | fdctrl->msr |= FD_MSR_CMDBUSY; |
8977f3c1 | 2454 | } |
65cef780 | 2455 | |
5b0a25e8 | 2456 | if (fdctrl->data_pos == fdctrl->data_len) { |
d275b33d | 2457 | /* We have all parameters now, execute the command */ |
5b0a25e8 | 2458 | fdctrl->phase = FD_PHASE_EXECUTION; |
d275b33d | 2459 | |
5b0a25e8 KW |
2460 | if (fdctrl->data_state & FD_STATE_FORMAT) { |
2461 | fdctrl_format_sector(fdctrl); | |
2462 | break; | |
2463 | } | |
2464 | ||
d275b33d KW |
2465 | cmd = get_command(fdctrl->fifo[0]); |
2466 | FLOPPY_DPRINTF("Calling handler for '%s'\n", cmd->name); | |
2467 | cmd->handler(fdctrl, cmd->direction); | |
5b0a25e8 KW |
2468 | } |
2469 | break; | |
2470 | ||
2471 | case FD_PHASE_RESULT: | |
2472 | default: | |
2473 | abort(); | |
8977f3c1 FB |
2474 | } |
2475 | } | |
ed5fd2cc FB |
2476 | |
2477 | static void fdctrl_result_timer(void *opaque) | |
2478 | { | |
5c02c033 BS |
2479 | FDCtrl *fdctrl = opaque; |
2480 | FDrive *cur_drv = get_cur_drv(fdctrl); | |
4f431960 | 2481 | |
b7ffa3b1 TS |
2482 | /* Pretend we are spinning. |
2483 | * This is needed for Coherent, which uses READ ID to check for | |
2484 | * sector interleaving. | |
2485 | */ | |
2486 | if (cur_drv->last_sect != 0) { | |
2487 | cur_drv->sect = (cur_drv->sect % cur_drv->last_sect) + 1; | |
2488 | } | |
844f65d6 HP |
2489 | /* READ_ID can't automatically succeed! */ |
2490 | if (fdctrl->check_media_rate && | |
2491 | (fdctrl->dsr & FD_DSR_DRATEMASK) != cur_drv->media_rate) { | |
2492 | FLOPPY_DPRINTF("read id rate mismatch (fdc=%d, media=%d)\n", | |
2493 | fdctrl->dsr & FD_DSR_DRATEMASK, cur_drv->media_rate); | |
2494 | fdctrl_stop_transfer(fdctrl, FD_SR0_ABNTERM, FD_SR1_MA, 0x00); | |
2495 | } else { | |
2496 | fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00); | |
2497 | } | |
ed5fd2cc | 2498 | } |
678803ab BS |
2499 | |
2500 | /* Init functions */ | |
6172e067 MA |
2501 | |
2502 | static void fdctrl_init_drives(FloppyBus *bus, DriveInfo **fds) | |
2503 | { | |
2504 | DeviceState *dev; | |
2505 | int i; | |
2506 | ||
2507 | for (i = 0; i < MAX_FD; i++) { | |
2508 | if (fds[i]) { | |
2509 | dev = qdev_new("floppy"); | |
2510 | qdev_prop_set_uint32(dev, "unit", i); | |
2511 | qdev_prop_set_enum(dev, "drive-type", FLOPPY_DRIVE_TYPE_AUTO); | |
934df912 MA |
2512 | qdev_prop_set_drive_err(dev, "drive", blk_by_legacy_dinfo(fds[i]), |
2513 | &error_fatal); | |
6172e067 MA |
2514 | qdev_realize_and_unref(dev, &bus->bus, &error_fatal); |
2515 | } | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | void isa_fdc_init_drives(ISADevice *fdc, DriveInfo **fds) | |
2520 | { | |
2521 | fdctrl_init_drives(&ISA_FDC(fdc)->state.bus, fds); | |
2522 | } | |
2523 | ||
c0ca74f6 FZ |
2524 | static void fdctrl_connect_drives(FDCtrl *fdctrl, DeviceState *fdc_dev, |
2525 | Error **errp) | |
678803ab | 2526 | { |
12a71a02 | 2527 | unsigned int i; |
7d0d6950 | 2528 | FDrive *drive; |
394ea2ca | 2529 | DeviceState *dev; |
a92bd191 | 2530 | BlockBackend *blk; |
992861fb | 2531 | bool ok; |
4a27a638 | 2532 | const char *fdc_name, *drive_suffix; |
678803ab | 2533 | |
678803ab | 2534 | for (i = 0; i < MAX_FD; i++) { |
7d0d6950 | 2535 | drive = &fdctrl->drives[i]; |
844f65d6 | 2536 | drive->fdctrl = fdctrl; |
7d0d6950 | 2537 | |
394ea2ca KW |
2538 | /* If the drive is not present, we skip creating the qdev device, but |
2539 | * still have to initialise the controller. */ | |
a92bd191 KW |
2540 | blk = fdctrl->qdev_for_drives[i].blk; |
2541 | if (!blk) { | |
394ea2ca KW |
2542 | fd_init(drive); |
2543 | fd_revalidate(drive); | |
2544 | continue; | |
b47b3525 MA |
2545 | } |
2546 | ||
4a27a638 MA |
2547 | fdc_name = object_get_typename(OBJECT(fdc_dev)); |
2548 | drive_suffix = !strcmp(fdc_name, "SUNW,fdtwo") ? "" : i ? "B" : "A"; | |
2549 | warn_report("warning: property %s.drive%s is deprecated", | |
2550 | fdc_name, drive_suffix); | |
2551 | error_printf("Use -device floppy,unit=%d,drive=... instead.\n", i); | |
2552 | ||
3e80f690 | 2553 | dev = qdev_new("floppy"); |
394ea2ca | 2554 | qdev_prop_set_uint32(dev, "unit", i); |
a92bd191 KW |
2555 | qdev_prop_set_enum(dev, "drive-type", fdctrl->qdev_for_drives[i].type); |
2556 | ||
4a27a638 MA |
2557 | /* |
2558 | * Hack alert: we move the backend from the floppy controller | |
2559 | * device to the floppy device. We first need to detach the | |
2560 | * controller, or else floppy_create()'s qdev_prop_set_drive() | |
2561 | * will die when it attaches floppy device. We also need to | |
2562 | * take another reference so that blk_detach_dev() doesn't | |
2563 | * free blk while we still need it. | |
2564 | * | |
2565 | * The hack is probably a bad idea. | |
2566 | */ | |
a92bd191 KW |
2567 | blk_ref(blk); |
2568 | blk_detach_dev(blk, fdc_dev); | |
2569 | fdctrl->qdev_for_drives[i].blk = NULL; | |
992861fb | 2570 | ok = qdev_prop_set_drive_err(dev, "drive", blk, errp); |
a92bd191 | 2571 | blk_unref(blk); |
992861fb | 2572 | if (!ok) { |
a92bd191 KW |
2573 | return; |
2574 | } | |
2575 | ||
668f62ec | 2576 | if (!qdev_realize_and_unref(dev, &fdctrl->bus.bus, errp)) { |
394ea2ca | 2577 | return; |
7d0d6950 | 2578 | } |
678803ab | 2579 | } |
678803ab BS |
2580 | } |
2581 | ||
63ffb564 | 2582 | void fdctrl_init_sysbus(qemu_irq irq, int dma_chann, |
a8170e5e | 2583 | hwaddr mmio_base, DriveInfo **fds) |
2091ba23 | 2584 | { |
5c02c033 | 2585 | FDCtrl *fdctrl; |
2091ba23 | 2586 | DeviceState *dev; |
dd3be742 | 2587 | SysBusDevice *sbd; |
5c02c033 | 2588 | FDCtrlSysBus *sys; |
2091ba23 | 2589 | |
3e80f690 | 2590 | dev = qdev_new("sysbus-fdc"); |
dd3be742 | 2591 | sys = SYSBUS_FDC(dev); |
99244fa1 GH |
2592 | fdctrl = &sys->state; |
2593 | fdctrl->dma_chann = dma_chann; /* FIXME */ | |
dd3be742 | 2594 | sbd = SYS_BUS_DEVICE(dev); |
3c6ef471 | 2595 | sysbus_realize_and_unref(sbd, &error_fatal); |
dd3be742 HT |
2596 | sysbus_connect_irq(sbd, 0, irq); |
2597 | sysbus_mmio_map(sbd, 0, mmio_base); | |
6172e067 MA |
2598 | |
2599 | fdctrl_init_drives(&sys->state.bus, fds); | |
678803ab BS |
2600 | } |
2601 | ||
a8170e5e | 2602 | void sun4m_fdctrl_init(qemu_irq irq, hwaddr io_base, |
63ffb564 | 2603 | DriveInfo **fds, qemu_irq *fdc_tc) |
678803ab | 2604 | { |
f64ab228 | 2605 | DeviceState *dev; |
5c02c033 | 2606 | FDCtrlSysBus *sys; |
678803ab | 2607 | |
3e80f690 | 2608 | dev = qdev_new("SUNW,fdtwo"); |
3c6ef471 | 2609 | sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
dd3be742 HT |
2610 | sys = SYSBUS_FDC(dev); |
2611 | sysbus_connect_irq(SYS_BUS_DEVICE(sys), 0, irq); | |
2612 | sysbus_mmio_map(SYS_BUS_DEVICE(sys), 0, io_base); | |
f64ab228 | 2613 | *fdc_tc = qdev_get_gpio_in(dev, 0); |
6172e067 MA |
2614 | |
2615 | fdctrl_init_drives(&sys->state.bus, fds); | |
678803ab | 2616 | } |
f64ab228 | 2617 | |
51e6e90e KW |
2618 | static void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl, |
2619 | Error **errp) | |
f64ab228 | 2620 | { |
12a71a02 BS |
2621 | int i, j; |
2622 | static int command_tables_inited = 0; | |
f64ab228 | 2623 | |
a73275dd JS |
2624 | if (fdctrl->fallback == FLOPPY_DRIVE_TYPE_AUTO) { |
2625 | error_setg(errp, "Cannot choose a fallback FDrive type of 'auto'"); | |
07a978ef | 2626 | return; |
a73275dd JS |
2627 | } |
2628 | ||
12a71a02 BS |
2629 | /* Fill 'command_to_handler' lookup table */ |
2630 | if (!command_tables_inited) { | |
2631 | command_tables_inited = 1; | |
2632 | for (i = ARRAY_SIZE(handlers) - 1; i >= 0; i--) { | |
2633 | for (j = 0; j < sizeof(command_to_handler); j++) { | |
2634 | if ((j & handlers[i].mask) == handlers[i].value) { | |
2635 | command_to_handler[j] = i; | |
2636 | } | |
2637 | } | |
2638 | } | |
2639 | } | |
2640 | ||
2641 | FLOPPY_DPRINTF("init controller\n"); | |
2642 | fdctrl->fifo = qemu_memalign(512, FD_SECTOR_LEN); | |
6653d131 | 2643 | memset(fdctrl->fifo, 0, FD_SECTOR_LEN); |
d7a6c270 | 2644 | fdctrl->fifo_size = 512; |
bc72ad67 | 2645 | fdctrl->result_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, |
a3ef7a61 | 2646 | fdctrl_result_timer, fdctrl); |
12a71a02 BS |
2647 | |
2648 | fdctrl->version = 0x90; /* Intel 82078 controller */ | |
2649 | fdctrl->config = FD_CONFIG_EIS | FD_CONFIG_EFIFO; /* Implicit seek, polling & FIFO enabled */ | |
d7a6c270 | 2650 | fdctrl->num_floppies = MAX_FD; |
12a71a02 | 2651 | |
a3ef7a61 | 2652 | if (fdctrl->dma_chann != -1) { |
c8a35f1c HP |
2653 | IsaDmaClass *k; |
2654 | assert(fdctrl->dma); | |
2655 | k = ISADMA_GET_CLASS(fdctrl->dma); | |
2656 | k->register_channel(fdctrl->dma, fdctrl->dma_chann, | |
2657 | &fdctrl_transfer_handler, fdctrl); | |
a3ef7a61 | 2658 | } |
51e6e90e KW |
2659 | |
2660 | floppy_bus_create(fdctrl, &fdctrl->bus, dev); | |
c0ca74f6 | 2661 | fdctrl_connect_drives(fdctrl, dev, errp); |
f64ab228 BS |
2662 | } |
2663 | ||
212ec7ba | 2664 | static const MemoryRegionPortio fdc_portio_list[] = { |
2f290a8c | 2665 | { 1, 5, 1, .read = fdctrl_read, .write = fdctrl_write }, |
212ec7ba RH |
2666 | { 7, 1, 1, .read = fdctrl_read, .write = fdctrl_write }, |
2667 | PORTIO_END_OF_LIST(), | |
2f290a8c RH |
2668 | }; |
2669 | ||
db895a1e | 2670 | static void isabus_fdc_realize(DeviceState *dev, Error **errp) |
8baf73ad | 2671 | { |
db895a1e | 2672 | ISADevice *isadev = ISA_DEVICE(dev); |
020c8e76 | 2673 | FDCtrlISABus *isa = ISA_FDC(dev); |
5c02c033 | 2674 | FDCtrl *fdctrl = &isa->state; |
a3ef7a61 | 2675 | Error *err = NULL; |
8baf73ad | 2676 | |
e305a165 MAL |
2677 | isa_register_portio_list(isadev, &fdctrl->portio_list, |
2678 | isa->iobase, fdc_portio_list, fdctrl, | |
db895a1e | 2679 | "fdc"); |
dee41d58 | 2680 | |
db895a1e | 2681 | isa_init_irq(isadev, &fdctrl->irq, isa->irq); |
c9ae703d | 2682 | fdctrl->dma_chann = isa->dma; |
c8a35f1c HP |
2683 | if (fdctrl->dma_chann != -1) { |
2684 | fdctrl->dma = isa_get_dma(isa_bus_from_device(isadev), isa->dma); | |
b3da5513 AK |
2685 | if (!fdctrl->dma) { |
2686 | error_setg(errp, "ISA controller does not support DMA"); | |
2687 | return; | |
2688 | } | |
c8a35f1c | 2689 | } |
8baf73ad | 2690 | |
db895a1e | 2691 | qdev_set_legacy_instance_id(dev, isa->iobase, 2); |
51e6e90e | 2692 | fdctrl_realize_common(dev, fdctrl, &err); |
a3ef7a61 AF |
2693 | if (err != NULL) { |
2694 | error_propagate(errp, err); | |
db895a1e AF |
2695 | return; |
2696 | } | |
8baf73ad GH |
2697 | } |
2698 | ||
940194c2 | 2699 | static void sysbus_fdc_initfn(Object *obj) |
12a71a02 | 2700 | { |
19d46d71 | 2701 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
940194c2 | 2702 | FDCtrlSysBus *sys = SYSBUS_FDC(obj); |
5c02c033 | 2703 | FDCtrl *fdctrl = &sys->state; |
12a71a02 | 2704 | |
19d46d71 AF |
2705 | fdctrl->dma_chann = -1; |
2706 | ||
940194c2 | 2707 | memory_region_init_io(&fdctrl->iomem, obj, &fdctrl_mem_ops, fdctrl, |
2d256e6f | 2708 | "fdc", 0x08); |
19d46d71 | 2709 | sysbus_init_mmio(sbd, &fdctrl->iomem); |
940194c2 HT |
2710 | } |
2711 | ||
19d46d71 | 2712 | static void sun4m_fdc_initfn(Object *obj) |
940194c2 | 2713 | { |
19d46d71 AF |
2714 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
2715 | FDCtrlSysBus *sys = SYSBUS_FDC(obj); | |
940194c2 | 2716 | FDCtrl *fdctrl = &sys->state; |
940194c2 | 2717 | |
dd446051 HP |
2718 | fdctrl->dma_chann = -1; |
2719 | ||
19d46d71 AF |
2720 | memory_region_init_io(&fdctrl->iomem, obj, &fdctrl_mem_strict_ops, |
2721 | fdctrl, "fdctrl", 0x08); | |
2722 | sysbus_init_mmio(sbd, &fdctrl->iomem); | |
940194c2 | 2723 | } |
2be37833 | 2724 | |
19d46d71 | 2725 | static void sysbus_fdc_common_initfn(Object *obj) |
940194c2 | 2726 | { |
19d46d71 AF |
2727 | DeviceState *dev = DEVICE(obj); |
2728 | SysBusDevice *sbd = SYS_BUS_DEVICE(dev); | |
940194c2 HT |
2729 | FDCtrlSysBus *sys = SYSBUS_FDC(obj); |
2730 | FDCtrl *fdctrl = &sys->state; | |
2731 | ||
19d46d71 AF |
2732 | qdev_set_legacy_instance_id(dev, 0 /* io */, 2); /* FIXME */ |
2733 | ||
2734 | sysbus_init_irq(sbd, &fdctrl->irq); | |
2735 | qdev_init_gpio_in(dev, fdctrl_handle_tc, 1); | |
12a71a02 BS |
2736 | } |
2737 | ||
19d46d71 | 2738 | static void sysbus_fdc_common_realize(DeviceState *dev, Error **errp) |
12a71a02 | 2739 | { |
dd3be742 HT |
2740 | FDCtrlSysBus *sys = SYSBUS_FDC(dev); |
2741 | FDCtrl *fdctrl = &sys->state; | |
12a71a02 | 2742 | |
51e6e90e | 2743 | fdctrl_realize_common(dev, fdctrl, errp); |
12a71a02 | 2744 | } |
f64ab228 | 2745 | |
2da44dd0 | 2746 | FloppyDriveType isa_fdc_get_drive_type(ISADevice *fdc, int i) |
34d4260e | 2747 | { |
020c8e76 | 2748 | FDCtrlISABus *isa = ISA_FDC(fdc); |
34d4260e | 2749 | |
61a8d649 | 2750 | return isa->state.drives[i].drive; |
34d4260e KW |
2751 | } |
2752 | ||
ffdf43ed GH |
2753 | static void isa_fdc_get_drive_max_chs(FloppyDriveType type, uint8_t *maxc, |
2754 | uint8_t *maxh, uint8_t *maxs) | |
e08fde0c RK |
2755 | { |
2756 | const FDFormat *fdf; | |
2757 | ||
2758 | *maxc = *maxh = *maxs = 0; | |
2759 | for (fdf = fd_formats; fdf->drive != FLOPPY_DRIVE_TYPE_NONE; fdf++) { | |
2760 | if (fdf->drive != type) { | |
2761 | continue; | |
2762 | } | |
2763 | if (*maxc < fdf->max_track) { | |
2764 | *maxc = fdf->max_track; | |
2765 | } | |
2766 | if (*maxh < fdf->max_head) { | |
2767 | *maxh = fdf->max_head; | |
2768 | } | |
2769 | if (*maxs < fdf->last_sect) { | |
2770 | *maxs = fdf->last_sect; | |
2771 | } | |
2772 | } | |
2773 | (*maxc)--; | |
2774 | } | |
2775 | ||
2055dbc1 GH |
2776 | static Aml *build_fdinfo_aml(int idx, FloppyDriveType type) |
2777 | { | |
2778 | Aml *dev, *fdi; | |
2779 | uint8_t maxc, maxh, maxs; | |
2780 | ||
2781 | isa_fdc_get_drive_max_chs(type, &maxc, &maxh, &maxs); | |
2782 | ||
2783 | dev = aml_device("FLP%c", 'A' + idx); | |
2784 | ||
2785 | aml_append(dev, aml_name_decl("_ADR", aml_int(idx))); | |
2786 | ||
2787 | fdi = aml_package(16); | |
2788 | aml_append(fdi, aml_int(idx)); /* Drive Number */ | |
2789 | aml_append(fdi, | |
2790 | aml_int(cmos_get_fd_drive_type(type))); /* Device Type */ | |
2791 | /* | |
2792 | * the values below are the limits of the drive, and are thus independent | |
2793 | * of the inserted media | |
2794 | */ | |
2795 | aml_append(fdi, aml_int(maxc)); /* Maximum Cylinder Number */ | |
2796 | aml_append(fdi, aml_int(maxs)); /* Maximum Sector Number */ | |
2797 | aml_append(fdi, aml_int(maxh)); /* Maximum Head Number */ | |
2798 | /* | |
2799 | * SeaBIOS returns the below values for int 0x13 func 0x08 regardless of | |
2800 | * the drive type, so shall we | |
2801 | */ | |
2802 | aml_append(fdi, aml_int(0xAF)); /* disk_specify_1 */ | |
2803 | aml_append(fdi, aml_int(0x02)); /* disk_specify_2 */ | |
2804 | aml_append(fdi, aml_int(0x25)); /* disk_motor_wait */ | |
2805 | aml_append(fdi, aml_int(0x02)); /* disk_sector_siz */ | |
2806 | aml_append(fdi, aml_int(0x12)); /* disk_eot */ | |
2807 | aml_append(fdi, aml_int(0x1B)); /* disk_rw_gap */ | |
2808 | aml_append(fdi, aml_int(0xFF)); /* disk_dtl */ | |
2809 | aml_append(fdi, aml_int(0x6C)); /* disk_formt_gap */ | |
2810 | aml_append(fdi, aml_int(0xF6)); /* disk_fill */ | |
2811 | aml_append(fdi, aml_int(0x0F)); /* disk_head_sttl */ | |
2812 | aml_append(fdi, aml_int(0x08)); /* disk_motor_strt */ | |
2813 | ||
2814 | aml_append(dev, aml_name_decl("_FDI", fdi)); | |
2815 | return dev; | |
2816 | } | |
2817 | ||
89ed90e3 GH |
2818 | int cmos_get_fd_drive_type(FloppyDriveType fd0) |
2819 | { | |
2820 | int val; | |
2821 | ||
2822 | switch (fd0) { | |
2823 | case FLOPPY_DRIVE_TYPE_144: | |
2824 | /* 1.44 Mb 3"5 drive */ | |
2825 | val = 4; | |
2826 | break; | |
2827 | case FLOPPY_DRIVE_TYPE_288: | |
2828 | /* 2.88 Mb 3"5 drive */ | |
2829 | val = 5; | |
2830 | break; | |
2831 | case FLOPPY_DRIVE_TYPE_120: | |
2832 | /* 1.2 Mb 5"5 drive */ | |
2833 | val = 2; | |
2834 | break; | |
2835 | case FLOPPY_DRIVE_TYPE_NONE: | |
2836 | default: | |
2837 | val = 0; | |
2838 | break; | |
2839 | } | |
2840 | return val; | |
2841 | } | |
2842 | ||
2055dbc1 GH |
2843 | static void fdc_isa_build_aml(ISADevice *isadev, Aml *scope) |
2844 | { | |
2845 | Aml *dev; | |
2846 | Aml *crs; | |
2847 | int i; | |
2848 | ||
2849 | #define ACPI_FDE_MAX_FD 4 | |
2850 | uint32_t fde_buf[5] = { | |
2851 | 0, 0, 0, 0, /* presence of floppy drives #0 - #3 */ | |
2852 | cpu_to_le32(2) /* tape presence (2 == never present) */ | |
2853 | }; | |
2854 | ||
2855 | crs = aml_resource_template(); | |
2856 | aml_append(crs, aml_io(AML_DECODE16, 0x03F2, 0x03F2, 0x00, 0x04)); | |
2857 | aml_append(crs, aml_io(AML_DECODE16, 0x03F7, 0x03F7, 0x00, 0x01)); | |
2858 | aml_append(crs, aml_irq_no_flags(6)); | |
2859 | aml_append(crs, | |
2860 | aml_dma(AML_COMPATIBILITY, AML_NOTBUSMASTER, AML_TRANSFER8, 2)); | |
2861 | ||
2862 | dev = aml_device("FDC0"); | |
2863 | aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0700"))); | |
2864 | aml_append(dev, aml_name_decl("_CRS", crs)); | |
2865 | ||
2866 | for (i = 0; i < MIN(MAX_FD, ACPI_FDE_MAX_FD); i++) { | |
2867 | FloppyDriveType type = isa_fdc_get_drive_type(isadev, i); | |
2868 | ||
2869 | if (type < FLOPPY_DRIVE_TYPE_NONE) { | |
2870 | fde_buf[i] = cpu_to_le32(1); /* drive present */ | |
2871 | aml_append(dev, build_fdinfo_aml(i, type)); | |
2872 | } | |
2873 | } | |
2874 | aml_append(dev, aml_name_decl("_FDE", | |
2875 | aml_buffer(sizeof(fde_buf), (uint8_t *)fde_buf))); | |
2876 | ||
2877 | aml_append(scope, dev); | |
2878 | } | |
2879 | ||
a64405d1 JK |
2880 | static const VMStateDescription vmstate_isa_fdc ={ |
2881 | .name = "fdc", | |
2882 | .version_id = 2, | |
2883 | .minimum_version_id = 2, | |
d49805ae | 2884 | .fields = (VMStateField[]) { |
a64405d1 JK |
2885 | VMSTATE_STRUCT(state, FDCtrlISABus, 0, vmstate_fdc, FDCtrl), |
2886 | VMSTATE_END_OF_LIST() | |
2887 | } | |
2888 | }; | |
2889 | ||
39bffca2 | 2890 | static Property isa_fdc_properties[] = { |
c7bcc85d | 2891 | DEFINE_PROP_UINT32("iobase", FDCtrlISABus, iobase, 0x3f0), |
c9ae703d HP |
2892 | DEFINE_PROP_UINT32("irq", FDCtrlISABus, irq, 6), |
2893 | DEFINE_PROP_UINT32("dma", FDCtrlISABus, dma, 2), | |
a92bd191 KW |
2894 | DEFINE_PROP_DRIVE("driveA", FDCtrlISABus, state.qdev_for_drives[0].blk), |
2895 | DEFINE_PROP_DRIVE("driveB", FDCtrlISABus, state.qdev_for_drives[1].blk), | |
09c6d585 HP |
2896 | DEFINE_PROP_BIT("check_media_rate", FDCtrlISABus, state.check_media_rate, |
2897 | 0, true), | |
85bbd1e7 | 2898 | DEFINE_PROP_SIGNED("fdtypeA", FDCtrlISABus, state.qdev_for_drives[0].type, |
fff4687b JS |
2899 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
2900 | FloppyDriveType), | |
85bbd1e7 | 2901 | DEFINE_PROP_SIGNED("fdtypeB", FDCtrlISABus, state.qdev_for_drives[1].type, |
fff4687b JS |
2902 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
2903 | FloppyDriveType), | |
85bbd1e7 | 2904 | DEFINE_PROP_SIGNED("fallback", FDCtrlISABus, state.fallback, |
4812fa27 | 2905 | FLOPPY_DRIVE_TYPE_288, qdev_prop_fdc_drive_type, |
a73275dd | 2906 | FloppyDriveType), |
39bffca2 AL |
2907 | DEFINE_PROP_END_OF_LIST(), |
2908 | }; | |
2909 | ||
020c8e76 | 2910 | static void isabus_fdc_class_init(ObjectClass *klass, void *data) |
8f04ee08 | 2911 | { |
39bffca2 | 2912 | DeviceClass *dc = DEVICE_CLASS(klass); |
2055dbc1 | 2913 | ISADeviceClass *isa = ISA_DEVICE_CLASS(klass); |
db895a1e AF |
2914 | |
2915 | dc->realize = isabus_fdc_realize; | |
39bffca2 | 2916 | dc->fw_name = "fdc"; |
39bffca2 AL |
2917 | dc->reset = fdctrl_external_reset_isa; |
2918 | dc->vmsd = &vmstate_isa_fdc; | |
2055dbc1 | 2919 | isa->build_aml = fdc_isa_build_aml; |
4f67d30b | 2920 | device_class_set_props(dc, isa_fdc_properties); |
125ee0ed | 2921 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
39bffca2 AL |
2922 | } |
2923 | ||
81782b6a GA |
2924 | static void isabus_fdc_instance_init(Object *obj) |
2925 | { | |
2926 | FDCtrlISABus *isa = ISA_FDC(obj); | |
2927 | ||
2928 | device_add_bootindex_property(obj, &isa->bootindexA, | |
2929 | "bootindexA", "/floppy@0", | |
40c2281c | 2930 | DEVICE(obj)); |
81782b6a GA |
2931 | device_add_bootindex_property(obj, &isa->bootindexB, |
2932 | "bootindexB", "/floppy@1", | |
40c2281c | 2933 | DEVICE(obj)); |
81782b6a GA |
2934 | } |
2935 | ||
8c43a6f0 | 2936 | static const TypeInfo isa_fdc_info = { |
020c8e76 | 2937 | .name = TYPE_ISA_FDC, |
39bffca2 AL |
2938 | .parent = TYPE_ISA_DEVICE, |
2939 | .instance_size = sizeof(FDCtrlISABus), | |
020c8e76 | 2940 | .class_init = isabus_fdc_class_init, |
81782b6a | 2941 | .instance_init = isabus_fdc_instance_init, |
8baf73ad GH |
2942 | }; |
2943 | ||
a64405d1 JK |
2944 | static const VMStateDescription vmstate_sysbus_fdc ={ |
2945 | .name = "fdc", | |
2946 | .version_id = 2, | |
2947 | .minimum_version_id = 2, | |
d49805ae | 2948 | .fields = (VMStateField[]) { |
a64405d1 JK |
2949 | VMSTATE_STRUCT(state, FDCtrlSysBus, 0, vmstate_fdc, FDCtrl), |
2950 | VMSTATE_END_OF_LIST() | |
2951 | } | |
2952 | }; | |
2953 | ||
999e12bb | 2954 | static Property sysbus_fdc_properties[] = { |
a92bd191 KW |
2955 | DEFINE_PROP_DRIVE("driveA", FDCtrlSysBus, state.qdev_for_drives[0].blk), |
2956 | DEFINE_PROP_DRIVE("driveB", FDCtrlSysBus, state.qdev_for_drives[1].blk), | |
85bbd1e7 | 2957 | DEFINE_PROP_SIGNED("fdtypeA", FDCtrlSysBus, state.qdev_for_drives[0].type, |
fff4687b JS |
2958 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
2959 | FloppyDriveType), | |
85bbd1e7 | 2960 | DEFINE_PROP_SIGNED("fdtypeB", FDCtrlSysBus, state.qdev_for_drives[1].type, |
fff4687b JS |
2961 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
2962 | FloppyDriveType), | |
85bbd1e7 | 2963 | DEFINE_PROP_SIGNED("fallback", FDCtrlISABus, state.fallback, |
a73275dd JS |
2964 | FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type, |
2965 | FloppyDriveType), | |
999e12bb | 2966 | DEFINE_PROP_END_OF_LIST(), |
12a71a02 BS |
2967 | }; |
2968 | ||
999e12bb AL |
2969 | static void sysbus_fdc_class_init(ObjectClass *klass, void *data) |
2970 | { | |
39bffca2 | 2971 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 2972 | |
4f67d30b | 2973 | device_class_set_props(dc, sysbus_fdc_properties); |
125ee0ed | 2974 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
999e12bb AL |
2975 | } |
2976 | ||
8c43a6f0 | 2977 | static const TypeInfo sysbus_fdc_info = { |
19d46d71 AF |
2978 | .name = "sysbus-fdc", |
2979 | .parent = TYPE_SYSBUS_FDC, | |
940194c2 | 2980 | .instance_init = sysbus_fdc_initfn, |
39bffca2 | 2981 | .class_init = sysbus_fdc_class_init, |
999e12bb AL |
2982 | }; |
2983 | ||
2984 | static Property sun4m_fdc_properties[] = { | |
a92bd191 | 2985 | DEFINE_PROP_DRIVE("drive", FDCtrlSysBus, state.qdev_for_drives[0].blk), |
85bbd1e7 | 2986 | DEFINE_PROP_SIGNED("fdtype", FDCtrlSysBus, state.qdev_for_drives[0].type, |
fff4687b JS |
2987 | FLOPPY_DRIVE_TYPE_AUTO, qdev_prop_fdc_drive_type, |
2988 | FloppyDriveType), | |
85bbd1e7 | 2989 | DEFINE_PROP_SIGNED("fallback", FDCtrlISABus, state.fallback, |
a73275dd JS |
2990 | FLOPPY_DRIVE_TYPE_144, qdev_prop_fdc_drive_type, |
2991 | FloppyDriveType), | |
999e12bb AL |
2992 | DEFINE_PROP_END_OF_LIST(), |
2993 | }; | |
2994 | ||
2995 | static void sun4m_fdc_class_init(ObjectClass *klass, void *data) | |
2996 | { | |
39bffca2 | 2997 | DeviceClass *dc = DEVICE_CLASS(klass); |
999e12bb | 2998 | |
4f67d30b | 2999 | device_class_set_props(dc, sun4m_fdc_properties); |
125ee0ed | 3000 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); |
999e12bb AL |
3001 | } |
3002 | ||
8c43a6f0 | 3003 | static const TypeInfo sun4m_fdc_info = { |
39bffca2 | 3004 | .name = "SUNW,fdtwo", |
19d46d71 | 3005 | .parent = TYPE_SYSBUS_FDC, |
940194c2 | 3006 | .instance_init = sun4m_fdc_initfn, |
39bffca2 | 3007 | .class_init = sun4m_fdc_class_init, |
f64ab228 BS |
3008 | }; |
3009 | ||
19d46d71 AF |
3010 | static void sysbus_fdc_common_class_init(ObjectClass *klass, void *data) |
3011 | { | |
3012 | DeviceClass *dc = DEVICE_CLASS(klass); | |
3013 | ||
3014 | dc->realize = sysbus_fdc_common_realize; | |
3015 | dc->reset = fdctrl_external_reset_sysbus; | |
3016 | dc->vmsd = &vmstate_sysbus_fdc; | |
3017 | } | |
3018 | ||
3019 | static const TypeInfo sysbus_fdc_type_info = { | |
3020 | .name = TYPE_SYSBUS_FDC, | |
3021 | .parent = TYPE_SYS_BUS_DEVICE, | |
3022 | .instance_size = sizeof(FDCtrlSysBus), | |
3023 | .instance_init = sysbus_fdc_common_initfn, | |
3024 | .abstract = true, | |
3025 | .class_init = sysbus_fdc_common_class_init, | |
3026 | }; | |
3027 | ||
83f7d43a | 3028 | static void fdc_register_types(void) |
f64ab228 | 3029 | { |
39bffca2 | 3030 | type_register_static(&isa_fdc_info); |
19d46d71 | 3031 | type_register_static(&sysbus_fdc_type_info); |
39bffca2 AL |
3032 | type_register_static(&sysbus_fdc_info); |
3033 | type_register_static(&sun4m_fdc_info); | |
51e6e90e | 3034 | type_register_static(&floppy_bus_info); |
394ea2ca | 3035 | type_register_static(&floppy_drive_info); |
f64ab228 BS |
3036 | } |
3037 | ||
83f7d43a | 3038 | type_init(fdc_register_types) |