fdc.c@ 4014

Last change on this file since 4014 was 4014, checked in by vboxsync, 17 years ago
Use pdmdrv.h and pdmdev.h where appropirate.
Property svn:eol-style set to `native`
File size: 96.9 KB

Line
1	#ifdef VBOX
2	/** @file
3	*
4	* VBox storage devices:
5	* Floppy disk controller
6	*/
7
8	/*
9	* Copyright (C) 2006-2007 innotek GmbH
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License as published by the Free Software Foundation,
15	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
16	* distribution. VirtualBox OSE is distributed in the hope that it will
17	* be useful, but WITHOUT ANY WARRANTY of any kind.
18	*
19	* If you received this file as part of a commercial VirtualBox
20	* distribution, then only the terms of your commercial VirtualBox
21	* license agreement apply instead of the previous paragraph.
22	*
23	* --------------------------------------------------------------------
24	*
25	* This code is based on:
26	*
27	* QEMU Floppy disk emulator (Intel 82078)
28	*
29	* Copyright (c) 2003 Jocelyn Mayer
30	*
31	* Permission is hereby granted, free of charge, to any person obtaining a copy
32	* of this software and associated documentation files (the "Software"), to deal
33	* in the Software without restriction, including without limitation the rights
34	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
35	* copies of the Software, and to permit persons to whom the Software is
36	* furnished to do so, subject to the following conditions:
37	*
38	* The above copyright notice and this permission notice shall be included in
39	* all copies or substantial portions of the Software.
40	*
41	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
42	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
43	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
44	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
45	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
46	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
47	* THE SOFTWARE.
48	*
49	*/
50
51
52	/*******************************************************************************
53	* Header Files *
54	*******************************************************************************/
55	#define LOG_GROUP LOG_GROUP_DEV_FDC
56	#include <VBox/pdmdev.h>
57	#include <iprt/assert.h>
58	#include <iprt/uuid.h>
59	#include <iprt/string.h>
60
61	#include "Builtins.h"
62	#include "../vl_vbox.h"
63
64	#define MAX_FD 2
65
66	#define PDMIBASE_2_FDRIVE(pInterface) \
67	((fdrive_t *)((uintptr_t)(pInterface) - RT_OFFSETOF(fdrive_t, IBase)))
68
69	#define PDMIMOUNTNOTIFY_2_FDRIVE(p) \
70	((fdrive_t *)((uintptr_t)(p) - RT_OFFSETOF(fdrive_t, IMountNotify)))
71
72	#endif /* VBOX */
73
74	#ifndef VBOX
75	#include "vl.h"
76	#endif /* !VBOX */
77
78	/********************************************************/
79	/* debug Floppy devices */
80	/* #define DEBUG_FLOPPY */
81
82	#ifndef VBOX
83	#ifdef DEBUG_FLOPPY
84	#define FLOPPY_DPRINTF(fmt, args...) \
85	do { printf("FLOPPY: " fmt , ##args); } while (0)
86	#endif
87	#else /* !VBOX */
88	# ifdef LOG_ENABLED
89	static void FLOPPY_DPRINTF (const char *fmt, ...)
90	{
91	if (LogIsEnabled ()) {
92	va_list args;
93	va_start (args, fmt);
94	RTLogLogger (NULL, NULL, "floppy: %N", fmt, &args); /* %N - nested va_list * type formatting call. */
95	va_end (args);
96	}
97	}
98	# else
99	DECLINLINE(void) FLOPPY_DPRINTF(const char *pszFmt, ...) {}
100	# endif
101	#endif /* !VBOX */
102
103	#ifndef VBOX
104	#define FLOPPY_ERROR(fmt, args...) \
105	do { printf("FLOPPY ERROR: %s: " fmt, __func__ , ##args); } while (0)
106	#else /* VBOX */
107	# define FLOPPY_ERROR RTLogPrintf
108	#endif /* VBOX */
109
110	#ifdef VBOX
111	typedef struct fdctrl_t fdctrl_t;
112	#endif /* VBOX */
113
114	/********************************************************/
115	/* Floppy drive emulation */
116
117	/* Will always be a fixed parameter for us */
118	#define FD_SECTOR_LEN 512
119	#define FD_SECTOR_SC 2 /* Sector size code */
120
121	/* Floppy disk drive emulation */
122	typedef enum fdisk_type_t {
123	FDRIVE_DISK_288 = 0x01, /* 2.88 MB disk */
124	FDRIVE_DISK_144 = 0x02, /* 1.44 MB disk */
125	FDRIVE_DISK_720 = 0x03, /* 720 kB disk */
126	FDRIVE_DISK_USER = 0x04, /* User defined geometry */
127	FDRIVE_DISK_NONE = 0x05 /* No disk */
128	} fdisk_type_t;
129
130	typedef enum fdrive_type_t {
131	FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */
132	FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */
133	FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */
134	FDRIVE_DRV_NONE = 0x03 /* No drive connected */
135	} fdrive_type_t;
136
137	typedef enum fdrive_flags_t {
138	FDRIVE_MOTOR_ON = 0x01, /* motor on/off */
139	FDRIVE_REVALIDATE = 0x02 /* Revalidated */
140	} fdrive_flags_t;
141
142	typedef enum fdisk_flags_t {
143	FDISK_DBL_SIDES = 0x01
144	} fdisk_flags_t;
145
146	typedef struct fdrive_t {
147	#ifndef VBOX
148	BlockDriverState *bs;
149	#else /* VBOX */
150	/** Pointer to the attached driver's base interface. */
151	HCPTRTYPE(PPDMIBASE) pDrvBase;
152	/** Pointer to the attached driver's block interface. */
153	HCPTRTYPE(PPDMIBLOCK) pDrvBlock;
154	/** Pointer to the attached driver's block bios interface. */
155	HCPTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios;
156	/** Pointer to the attached driver's mount interface.
157	* This is NULL if the driver isn't a removable unit. */
158	HCPTRTYPE(PPDMIMOUNT) pDrvMount;
159	/** The base interface. */
160	PDMIBASE IBase;
161	/** The block port interface. */
162	PDMIBLOCKPORT IPort;
163	/** The mount notify interface. */
164	PDMIMOUNTNOTIFY IMountNotify;
165	/** The LUN #. */
166	RTUINT iLUN;
167	/** The LED for this LUN. */
168	PDMLED Led;
169	/** The Diskette present/missing flag. */
170	bool fMediaPresent;
171	#endif
172	/* Drive status */
173	fdrive_type_t drive;
174	fdrive_flags_t drflags;
175	uint8_t perpendicular; /* 2.88 MB access mode */
176	/* Position */
177	uint8_t head;
178	uint8_t track;
179	uint8_t sect;
180	/* Last operation status */
181	uint8_t dir; /* Direction */
182	uint8_t rw; /* Read/write */
183	/* Media */
184	fdisk_flags_t flags;
185	uint8_t last_sect; /* Nb sector per track */
186	uint8_t max_track; /* Nb of tracks */
187	uint16_t bps; /* Bytes per sector */
188	uint8_t ro; /* Is read-only */
189	} fdrive_t;
190
191	#ifndef VBOX
192	static void fd_init (fdrive_t drv, BlockDriverState bs)
193	{
194	/* Drive */
195	drv->bs = bs;
196	drv->drive = FDRIVE_DRV_NONE;
197	drv->drflags = 0;
198	drv->perpendicular = 0;
199	/* Disk */
200	drv->last_sect = 0;
201	drv->max_track = 0;
202	}
203	#endif
204
205	static int _fd_sector (uint8_t head, uint8_t track,
206	uint8_t sect, uint8_t last_sect)
207	{
208	return (((track * 2) + head) * last_sect) + sect - 1;
209	}
210
211	/* Returns current position, in sectors, for given drive */
212	static int fd_sector (fdrive_t *drv)
213	{
214	return _fd_sector(drv->head, drv->track, drv->sect, drv->last_sect);
215	}
216
217	static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
218	int enable_seek)
219	{
220	uint32_t sector;
221	int ret;
222
223	if (track > drv->max_track \|\|
224	(head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
225	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
226	head, track, sect, 1,
227	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
228	drv->max_track, drv->last_sect);
229	return 2;
230	}
231	if (sect > drv->last_sect) {
232	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
233	head, track, sect, 1,
234	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
235	drv->max_track, drv->last_sect);
236	return 3;
237	}
238	sector = _fd_sector(head, track, sect, drv->last_sect);
239	ret = 0;
240	if (sector != fd_sector(drv)) {
241	#if 0
242	if (!enable_seek) {
243	FLOPPY_ERROR("no implicit seek %d %02x %02x (max=%d %02x %02x)\n",
244	head, track, sect, 1, drv->max_track, drv->last_sect);
245	return 4;
246	}
247	#endif
248	drv->head = head;
249	if (drv->track != track)
250	ret = 1;
251	drv->track = track;
252	drv->sect = sect;
253	}
254
255	return ret;
256	}
257
258	/* Set drive back to track 0 */
259	static void fd_recalibrate (fdrive_t *drv)
260	{
261	FLOPPY_DPRINTF("recalibrate\n");
262	drv->head = 0;
263	drv->track = 0;
264	drv->sect = 1;
265	drv->dir = 1;
266	drv->rw = 0;
267	}
268
269	/* Recognize floppy formats */
270	typedef struct fd_format_t {
271	fdrive_type_t drive;
272	fdisk_type_t disk;
273	uint8_t last_sect;
274	uint8_t max_track;
275	uint8_t max_head;
276	const char *str;
277	} fd_format_t;
278
279	static fd_format_t fd_formats[] = {
280	/* First entry is default format */
281	/* 1.44 MB 3"1/2 floppy disks */
282	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 18, 80, 1, "1.44 MB 3\"1/2", },
283	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 20, 80, 1, "1.6 MB 3\"1/2", },
284	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 80, 1, "1.68 MB 3\"1/2", },
285	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 82, 1, "1.72 MB 3\"1/2", },
286	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 83, 1, "1.74 MB 3\"1/2", },
287	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 22, 80, 1, "1.76 MB 3\"1/2", },
288	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 23, 80, 1, "1.84 MB 3\"1/2", },
289	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 24, 80, 1, "1.92 MB 3\"1/2", },
290	/* 2.88 MB 3"1/2 floppy disks */
291	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 36, 80, 1, "2.88 MB 3\"1/2", },
292	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 39, 80, 1, "3.12 MB 3\"1/2", },
293	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 40, 80, 1, "3.2 MB 3\"1/2", },
294	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 44, 80, 1, "3.52 MB 3\"1/2", },
295	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 48, 80, 1, "3.84 MB 3\"1/2", },
296	/* 720 kB 3"1/2 floppy disks */
297	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 1, "720 kB 3\"1/2", },
298	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 80, 1, "800 kB 3\"1/2", },
299	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 82, 1, "820 kB 3\"1/2", },
300	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 83, 1, "830 kB 3\"1/2", },
301	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 13, 80, 1, "1.04 MB 3\"1/2", },
302	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 14, 80, 1, "1.12 MB 3\"1/2", },
303	/* 1.2 MB 5"1/4 floppy disks */
304	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 15, 80, 1, "1.2 kB 5\"1/4", },
305	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 80, 1, "1.44 MB 5\"1/4", },
306	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 82, 1, "1.48 MB 5\"1/4", },
307	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 83, 1, "1.49 MB 5\"1/4", },
308	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 20, 80, 1, "1.6 MB 5\"1/4", },
309	/* 720 kB 5"1/4 floppy disks */
310	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 80, 1, "720 kB 5\"1/4", },
311	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 11, 80, 1, "880 kB 5\"1/4", },
312	/* 360 kB 5"1/4 floppy disks */
313	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 1, "360 kB 5\"1/4", },
314	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 0, "180 kB 5\"1/4", },
315	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 41, 1, "410 kB 5\"1/4", },
316	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 42, 1, "420 kB 5\"1/4", },
317	/* 320 kB 5"1/4 floppy disks */
318	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 1, "320 kB 5\"1/4", },
319	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 0, "160 kB 5\"1/4", },
320	/* 360 kB must match 5"1/4 better than 3"1/2... */
321	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 0, "360 kB 3\"1/2", },
322	/* end */
323	{ FDRIVE_DRV_NONE, FDRIVE_DISK_NONE, -1, -1, 0, NULL, },
324	};
325
326	/* Revalidate a disk drive after a disk change */
327	static void fd_revalidate (fdrive_t *drv)
328	{
329	fd_format_t *parse;
330	int64_t nb_sectors, size;
331	int i, first_match, match;
332	int nb_heads, max_track, last_sect, ro;
333
334	FLOPPY_DPRINTF("revalidate\n");
335	drv->drflags &= ~FDRIVE_REVALIDATE;
336	#ifndef VBOX
337	if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
338	ro = bdrv_is_read_only(drv->bs);
339	bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
340	#else /* VBOX */
341	/** @todo / /* @todo r=bird: todo what exactly? */
342	if (drv->pDrvBlock
343	&& drv->pDrvMount
344	&& drv->pDrvMount->pfnIsMounted (drv->pDrvMount)) {
345	ro = drv->pDrvBlock->pfnIsReadOnly (drv->pDrvBlock);
346	nb_heads = 0;
347	max_track = 0;
348	last_sect = 0;
349	#endif /* VBOX */
350	if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
351	FLOPPY_DPRINTF("User defined disk (%d %d %d)",
352	nb_heads - 1, max_track, last_sect);
353	} else {
354	#ifndef VBOX
355	bdrv_get_geometry(drv->bs, &nb_sectors);
356	#else /* VBOX */
357	/* @todo / /* @todo r=bird: todo what exactly?!?!? */
358	{
359	uint64_t size = drv->pDrvBlock->pfnGetSize (drv->pDrvBlock);
360	nb_sectors = size / 512;
361	}
362	#endif /* VBOX */
363	match = -1;
364	first_match = -1;
365	for (i = 0;; i++) {
366	parse = &fd_formats[i];
367	if (parse->drive == FDRIVE_DRV_NONE)
368	break;
369	if (drv->drive == parse->drive \|\|
370	drv->drive == FDRIVE_DRV_NONE) {
371	size = (parse->max_head + 1) * parse->max_track *
372	parse->last_sect;
373	if (nb_sectors == size) {
374	match = i;
375	break;
376	}
377	if (first_match == -1)
378	first_match = i;
379	}
380	}
381	if (match == -1) {
382	if (first_match == -1)
383	match = 1;
384	else
385	match = first_match;
386	parse = &fd_formats[match];
387	}
388	nb_heads = parse->max_head + 1;
389	max_track = parse->max_track;
390	last_sect = parse->last_sect;
391	drv->drive = parse->drive;
392	FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
393	nb_heads, max_track, last_sect, ro ? "ro" : "rw");
394	}
395	if (nb_heads == 1) {
396	drv->flags &= ~FDISK_DBL_SIDES;
397	} else {
398	drv->flags \|= FDISK_DBL_SIDES;
399	}
400	drv->max_track = max_track;
401	drv->last_sect = last_sect;
402	drv->ro = ro;
403	#ifdef VBOX
404	drv->fMediaPresent = true;
405	#endif
406	} else {
407	FLOPPY_DPRINTF("No disk in drive\n");
408	drv->last_sect = 0;
409	drv->max_track = 0;
410	drv->flags &= ~FDISK_DBL_SIDES;
411	#ifdef VBOX
412	drv->fMediaPresent = false;
413	#endif
414	}
415	drv->drflags \|= FDRIVE_REVALIDATE;
416	}
417
418	/* Motor control */
419	static void fd_start (fdrive_t *drv)
420	{
421	drv->drflags \|= FDRIVE_MOTOR_ON;
422	}
423
424	static void fd_stop (fdrive_t *drv)
425	{
426	drv->drflags &= ~FDRIVE_MOTOR_ON;
427	}
428
429	/* Re-initialise a drives (motor off, repositioned) */
430	static void fd_reset (fdrive_t *drv)
431	{
432	fd_stop(drv);
433	fd_recalibrate(drv);
434	}
435
436	/********************************************************/
437	/* Intel 82078 floppy disk controller emulation */
438
439	#define target_ulong uint32_t
440	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq);
441	static void fdctrl_reset_fifo (fdctrl_t *fdctrl);
442	#ifndef VBOX
443	static int fdctrl_transfer_handler (void *opaque, int nchan, int dma_pos, int dma_len);
444	#else /* VBOX: */
445	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
446	void *opaque,
447	unsigned nchan,
448	uint32_t dma_pos,
449	uint32_t dma_len);
450	#endif /* VBOX */
451	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status);
452	static void fdctrl_result_timer(void *opaque);
453
454	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl);
455	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl);
456	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value);
457	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl);
458	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value);
459	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl);
460	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value);
461	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl);
462	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value);
463	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl);
464
465	enum {
466	FD_CTRL_ACTIVE = 0x01, /* XXX: suppress that */
467	FD_CTRL_RESET = 0x02,
468	FD_CTRL_SLEEP = 0x04, /* XXX: suppress that */
469	FD_CTRL_BUSY = 0x08, /* dma transfer in progress */
470	FD_CTRL_INTR = 0x10
471	};
472
473	enum {
474	FD_DIR_WRITE = 0,
475	FD_DIR_READ = 1,
476	FD_DIR_SCANE = 2,
477	FD_DIR_SCANL = 3,
478	FD_DIR_SCANH = 4
479	};
480
481	enum {
482	FD_STATE_CMD = 0x00,
483	FD_STATE_STATUS = 0x01,
484	FD_STATE_DATA = 0x02,
485	FD_STATE_STATE = 0x03,
486	FD_STATE_MULTI = 0x10,
487	FD_STATE_SEEK = 0x20,
488	FD_STATE_FORMAT = 0x40
489	};
490
491	#define FD_STATE(state) ((state) & FD_STATE_STATE)
492	#define FD_SET_STATE(state, new_state) \
493	do { (state) = ((state) & ~FD_STATE_STATE) \| (new_state); } while (0)
494	#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
495	#define FD_DID_SEEK(state) ((state) & FD_STATE_SEEK)
496	#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
497
498	struct fdctrl_t {
499	#ifndef VBOX
500	fdctrl_t *fdctrl;
501	#endif
502	/* Controller's identification */
503	uint8_t version;
504	/* HW */
505	#ifndef VBOX
506	int irq_lvl;
507	int dma_chann;
508	#else
509	uint8_t irq_lvl;
510	uint8_t dma_chann;
511	#endif
512	uint32_t io_base;
513	/* Controller state */
514	QEMUTimer *result_timer;
515	uint8_t state;
516	uint8_t dma_en;
517	uint8_t cur_drv;
518	uint8_t bootsel;
519	/* Command FIFO */
520	uint8_t fifo[FD_SECTOR_LEN];
521	uint32_t data_pos;
522	uint32_t data_len;
523	uint8_t data_state;
524	uint8_t data_dir;
525	uint8_t int_status;
526	uint8_t eot; /* last wanted sector */
527	/* States kept only to be returned back */
528	/* Timers state */
529	uint8_t timer0;
530	uint8_t timer1;
531	/* precompensation */
532	uint8_t precomp_trk;
533	uint8_t config;
534	uint8_t lock;
535	/* Power down config (also with status regB access mode */
536	uint8_t pwrd;
537	/* Floppy drives */
538	fdrive_t drives[2];
539	#ifdef VBOX
540	/** Pointer to device instance. */
541	PPDMDEVINS pDevIns;
542
543	/** Status Port - The base interface. */
544	PDMIBASE IBaseStatus;
545	/** Status Port - The Leds interface. */
546	PDMILEDPORTS ILeds;
547	/** Status Port - The Partner of ILeds. */
548	PPDMILEDCONNECTORS pLedsConnector;
549	#endif
550	};
551
552	static uint32_t fdctrl_read (void *opaque, uint32_t reg)
553	{
554	fdctrl_t *fdctrl = opaque;
555	uint32_t retval;
556
557	switch (reg & 0x07) {
558	case 0x01:
559	retval = fdctrl_read_statusB(fdctrl);
560	break;
561	case 0x02:
562	retval = fdctrl_read_dor(fdctrl);
563	break;
564	case 0x03:
565	retval = fdctrl_read_tape(fdctrl);
566	break;
567	case 0x04:
568	retval = fdctrl_read_main_status(fdctrl);
569	break;
570	case 0x05:
571	retval = fdctrl_read_data(fdctrl);
572	break;
573	case 0x07:
574	retval = fdctrl_read_dir(fdctrl);
575	break;
576	default:
577	retval = (uint32_t)(-1);
578	break;
579	}
580	FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
581
582	return retval;
583	}
584
585	static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
586	{
587	fdctrl_t *fdctrl = opaque;
588
589	FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
590
591	switch (reg & 0x07) {
592	case 0x02:
593	fdctrl_write_dor(fdctrl, value);
594	break;
595	case 0x03:
596	fdctrl_write_tape(fdctrl, value);
597	break;
598	case 0x04:
599	fdctrl_write_rate(fdctrl, value);
600	break;
601	case 0x05:
602	fdctrl_write_data(fdctrl, value);
603	break;
604	default:
605	break;
606	}
607	}
608
609	#ifndef VBOX
610	static void fd_change_cb (void *opaque)
611	{
612	fdrive_t *drv = opaque;
613
614	FLOPPY_DPRINTF("disk change\n");
615	fd_revalidate(drv);
616	#if 0
617	fd_recalibrate(drv);
618	fdctrl_reset_fifo(drv->fdctrl);
619	fdctrl_raise_irq(drv->fdctrl, 0x20);
620	#endif
621	}
622
623	#else /* VBOX */
624	/**
625	* Called when a media is mounted.
626	*
627	* @param pInterface Pointer to the interface structure
628	* containing the called function pointer.
629	*/
630	static DECLCALLBACK(void) fdMountNotify(PPDMIMOUNTNOTIFY pInterface)
631	{
632	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
633	LogFlow(("fdMountNotify:\n"));
634	fd_revalidate (drv);
635	}
636
637	/**
638	* Called when a media is unmounted
639	* @param pInterface Pointer to the interface structure containing the called function pointer.
640	*/
641	static DECLCALLBACK(void) fdUnmountNotify(PPDMIMOUNTNOTIFY pInterface)
642	{
643	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
644	LogFlow(("fdUnmountNotify:\n"));
645	fd_revalidate (drv);
646	}
647	#endif
648
649	#ifndef VBOX
650	fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped,
651	uint32_t io_base,
652	BlockDriverState **fds)
653	{
654	fdctrl_t *fdctrl;
655	/* // int io_mem; */
656	int i;
657
658	FLOPPY_DPRINTF("init controller\n");
659	fdctrl = qemu_mallocz(sizeof(fdctrl_t));
660	if (!fdctrl)
661	return NULL;
662	fdctrl->result_timer = qemu_new_timer(vm_clock,
663	fdctrl_result_timer, fdctrl);
664
665	fdctrl->version = 0x90; /* Intel 82078 controller */
666	fdctrl->irq_lvl = irq_lvl;
667	fdctrl->dma_chann = dma_chann;
668	fdctrl->io_base = io_base;
669	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
670	if (fdctrl->dma_chann != -1) {
671	fdctrl->dma_en = 1;
672	DMA_register_channel(dma_chann, &fdctrl_transfer_handler, fdctrl);
673	} else {
674	fdctrl->dma_en = 0;
675	}
676	for (i = 0; i < 2; i++) {
677	fd_init(&fdctrl->drives[i], fds[i]);
678	if (fds[i]) {
679	bdrv_set_change_cb(fds[i],
680	&fd_change_cb, &fdctrl->drives[i]);
681	}
682	}
683	fdctrl_reset(fdctrl, 0);
684	fdctrl->state = FD_CTRL_ACTIVE;
685	if (mem_mapped) {
686	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
687	#if 0
688	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
689	cpu_register_physical_memory(base, 0x08, io_mem);
690	#endif
691	} else {
692	register_ioport_read(io_base + 0x01, 5, 1, &fdctrl_read, fdctrl);
693	register_ioport_read(io_base + 0x07, 1, 1, &fdctrl_read, fdctrl);
694	register_ioport_write(io_base + 0x01, 5, 1, &fdctrl_write, fdctrl);
695	register_ioport_write(io_base + 0x07, 1, 1, &fdctrl_write, fdctrl);
696	}
697	for (i = 0; i < 2; i++) {
698	fd_revalidate(&fdctrl->drives[i]);
699	}
700
701	return fdctrl;
702	}
703
704	/* XXX: may change if moved to bdrv */
705	int fdctrl_get_drive_type(fdctrl_t *fdctrl, int drive_num)
706	{
707	return fdctrl->drives[drive_num].drive;
708	}
709	#endif
710
711	/* Change IRQ state */
712	static void fdctrl_reset_irq (fdctrl_t *fdctrl)
713	{
714	FLOPPY_DPRINTF("Reset interrupt\n");
715	#ifdef VBOX
716	fdctrl->pDevIns->pDevHlp->pfnISASetIrq (fdctrl->pDevIns,
717	fdctrl->irq_lvl, 0);
718	#else
719	pic_set_irq(fdctrl->irq_lvl, 0);
720	#endif
721	fdctrl->state &= ~FD_CTRL_INTR;
722	}
723
724	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
725	{
726	if (~(fdctrl->state & FD_CTRL_INTR)) {
727	#ifdef VBOX
728	fdctrl->pDevIns->pDevHlp->pfnISASetIrq (fdctrl->pDevIns,
729	fdctrl->irq_lvl, 1);
730	#else
731	pic_set_irq(fdctrl->irq_lvl, 1);
732	#endif
733	fdctrl->state \|= FD_CTRL_INTR;
734	}
735	FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", status);
736	fdctrl->int_status = status;
737	}
738
739	/* Reset controller */
740	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq)
741	{
742	int i;
743
744	FLOPPY_DPRINTF("reset controller\n");
745	fdctrl_reset_irq(fdctrl);
746	/* Initialise controller */
747	fdctrl->cur_drv = 0;
748	/* FIFO state */
749	fdctrl->data_pos = 0;
750	fdctrl->data_len = 0;
751	fdctrl->data_state = FD_STATE_CMD;
752	fdctrl->data_dir = FD_DIR_WRITE;
753	for (i = 0; i < MAX_FD; i++)
754	fd_reset(&fdctrl->drives[i]);
755	fdctrl_reset_fifo(fdctrl);
756	if (do_irq)
757	fdctrl_raise_irq(fdctrl, 0xc0);
758	}
759
760	static inline fdrive_t drv0 (fdctrl_t fdctrl)
761	{
762	return &fdctrl->drives[fdctrl->bootsel];
763	}
764
765	static inline fdrive_t drv1 (fdctrl_t fdctrl)
766	{
767	return &fdctrl->drives[1 - fdctrl->bootsel];
768	}
769
770	static fdrive_t get_cur_drv (fdctrl_t fdctrl)
771	{
772	return fdctrl->cur_drv == 0 ? drv0(fdctrl) : drv1(fdctrl);
773	}
774
775	/* Status B register : 0x01 (read-only) */
776	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl)
777	{
778	FLOPPY_DPRINTF("status register: 0x00\n");
779	return 0;
780	}
781
782	/* Digital output register : 0x02 */
783	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
784	{
785	uint32_t retval = 0;
786
787	/* Drive motors state indicators */
788	#ifndef VBOX
789	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
790	retval \|= 1 << 5;
791	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
792	retval \|= 1 << 4;
793	#else
794	/* bit4: 0 = drive 0 motor off/1 = on */
795	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
796	retval \|= BIT(4);
797	/* bit5: 0 = drive 1 motor off/1 = on */
798	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
799	retval \|= BIT(5);
800	#endif
801	/* DMA enable */
802	retval \|= fdctrl->dma_en << 3;
803	/* Reset indicator */
804	retval \|= (fdctrl->state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
805	/* Selected drive */
806	retval \|= fdctrl->cur_drv;
807	FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval);
808
809	return retval;
810	}
811
812	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value)
813	{
814	/* Reset mode */
815	if (fdctrl->state & FD_CTRL_RESET) {
816	if (!(value & 0x04)) {
817	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
818	return;
819	}
820	}
821	FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value);
822	/* Drive motors state indicators */
823	if (value & 0x20)
824	fd_start(drv1(fdctrl));
825	else
826	fd_stop(drv1(fdctrl));
827	if (value & 0x10)
828	fd_start(drv0(fdctrl));
829	else
830	fd_stop(drv0(fdctrl));
831	/* DMA enable */
832	#if 0
833	if (fdctrl->dma_chann != -1)
834	fdctrl->dma_en = 1 - ((value >> 3) & 1);
835	#endif
836	/* Reset */
837	if (!(value & 0x04)) {
838	if (!(fdctrl->state & FD_CTRL_RESET)) {
839	FLOPPY_DPRINTF("controller enter RESET state\n");
840	fdctrl->state \|= FD_CTRL_RESET;
841	}
842	} else {
843	if (fdctrl->state & FD_CTRL_RESET) {
844	FLOPPY_DPRINTF("controller out of RESET state\n");
845	fdctrl_reset(fdctrl, 1);
846	fdctrl->state &= ~(FD_CTRL_RESET \| FD_CTRL_SLEEP);
847	}
848	}
849	/* Selected drive */
850	fdctrl->cur_drv = value & 1;
851	}
852
853	/* Tape drive register : 0x03 */
854	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl)
855	{
856	uint32_t retval = 0;
857
858	/* Disk boot selection indicator */
859	retval \|= fdctrl->bootsel << 2;
860	/* Tape indicators: never allowed */
861	FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval);
862
863	return retval;
864	}
865
866	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value)
867	{
868	/* Reset mode */
869	if (fdctrl->state & FD_CTRL_RESET) {
870	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
871	return;
872	}
873	FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value);
874	/* Disk boot selection indicator */
875	fdctrl->bootsel = (value >> 2) & 1;
876	/* Tape indicators: never allow */
877	}
878
879	/* Main status register : 0x04 (read) */
880	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl)
881	{
882	uint32_t retval = 0;
883
884	fdctrl->state &= ~(FD_CTRL_SLEEP \| FD_CTRL_RESET);
885	if (!(fdctrl->state & FD_CTRL_BUSY)) {
886	/* Data transfer allowed */
887	retval \|= 0x80;
888	/* Data transfer direction indicator */
889	if (fdctrl->data_dir == FD_DIR_READ)
890	retval \|= 0x40;
891	}
892	/* Should handle 0x20 for SPECIFY command */
893	/* Command busy indicator */
894	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA \|\|
895	FD_STATE(fdctrl->data_state) == FD_STATE_STATUS)
896	retval \|= 0x10;
897	FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
898
899	return retval;
900	}
901
902	/* Data select rate register : 0x04 (write) */
903	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
904	{
905	/* Reset mode */
906	if (fdctrl->state & FD_CTRL_RESET) {
907	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
908	return;
909	}
910	FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
911	/* Reset: autoclear */
912	if (value & 0x80) {
913	fdctrl->state \|= FD_CTRL_RESET;
914	fdctrl_reset(fdctrl, 1);
915	fdctrl->state &= ~FD_CTRL_RESET;
916	}
917	if (value & 0x40) {
918	fdctrl->state \|= FD_CTRL_SLEEP;
919	fdctrl_reset(fdctrl, 1);
920	}
921	/* // fdctrl.precomp = (value >> 2) & 0x07; */
922	}
923
924	/* Digital input register : 0x07 (read-only) */
925	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
926	{
927	uint32_t retval = 0;
928
929	#ifndef VBOX
930	if (drv0(fdctrl)->drflags & FDRIVE_REVALIDATE \|\|
931	drv1(fdctrl)->drflags & FDRIVE_REVALIDATE)
932	#else
933	fdrive_t *cur_drv = get_cur_drv(fdctrl);
934	if ( drv0(fdctrl)->drflags & FDRIVE_REVALIDATE
935	\|\| drv1(fdctrl)->drflags & FDRIVE_REVALIDATE
936	\|\| !cur_drv->fMediaPresent)
937	#endif
938	retval \|= 0x80;
939	if (retval != 0)
940	FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
941	drv0(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
942	drv1(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
943
944	return retval;
945	}
946
947	/* FIFO state control */
948	static void fdctrl_reset_fifo (fdctrl_t *fdctrl)
949	{
950	fdctrl->data_dir = FD_DIR_WRITE;
951	fdctrl->data_pos = 0;
952	FD_SET_STATE(fdctrl->data_state, FD_STATE_CMD);
953	}
954
955	/* Set FIFO status for the host to read */
956	static void fdctrl_set_fifo (fdctrl_t *fdctrl, int fifo_len, int do_irq)
957	{
958	fdctrl->data_dir = FD_DIR_READ;
959	fdctrl->data_len = fifo_len;
960	fdctrl->data_pos = 0;
961	FD_SET_STATE(fdctrl->data_state, FD_STATE_STATUS);
962	if (do_irq)
963	fdctrl_raise_irq(fdctrl, 0x00);
964	}
965
966	/* Set an error: unimplemented/unknown command */
967	static void fdctrl_unimplemented (fdctrl_t *fdctrl)
968	{
969	#if 0
970	fdrive_t *cur_drv;
971
972	cur_drv = get_cur_drv(fdctrl);
973	fdctrl->fifo[0] = 0x60 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
974	fdctrl->fifo[1] = 0x00;
975	fdctrl->fifo[2] = 0x00;
976	fdctrl_set_fifo(fdctrl, 3, 1);
977	#else
978	/* // fdctrl_reset_fifo(fdctrl); */
979	fdctrl->fifo[0] = 0x80;
980	fdctrl_set_fifo(fdctrl, 1, 0);
981	#endif
982	}
983
984	/* Callback for transfer end (stop or abort) */
985	static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
986	uint8_t status1, uint8_t status2)
987	{
988	fdrive_t *cur_drv;
989
990	cur_drv = get_cur_drv(fdctrl);
991	FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n",
992	status0, status1, status2,
993	status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv);
994	fdctrl->fifo[0] = status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
995	fdctrl->fifo[1] = status1;
996	fdctrl->fifo[2] = status2;
997	fdctrl->fifo[3] = cur_drv->track;
998	fdctrl->fifo[4] = cur_drv->head;
999	fdctrl->fifo[5] = cur_drv->sect;
1000	fdctrl->fifo[6] = FD_SECTOR_SC;
1001	fdctrl->data_dir = FD_DIR_READ;
1002	if (fdctrl->state & FD_CTRL_BUSY) {
1003	#ifdef VBOX
1004	fdctrl->pDevIns->pDevHlp->pfnDMASetDREQ (fdctrl->pDevIns,
1005	fdctrl->dma_chann,
1006	0);
1007	#else
1008	DMA_release_DREQ(fdctrl->dma_chann);
1009	#endif
1010	fdctrl->state &= ~FD_CTRL_BUSY;
1011	}
1012	fdctrl_set_fifo(fdctrl, 7, 1);
1013	}
1014
1015	/* Prepare a data transfer (either DMA or FIFO) */
1016	static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
1017	{
1018	fdrive_t *cur_drv;
1019	uint8_t kh, kt, ks;
1020	int did_seek;
1021
1022	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1023	cur_drv = get_cur_drv(fdctrl);
1024	kt = fdctrl->fifo[2];
1025	kh = fdctrl->fifo[3];
1026	ks = fdctrl->fifo[4];
1027	FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n",
1028	fdctrl->cur_drv, kh, kt, ks,
1029	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1030	did_seek = 0;
1031	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1032	case 2:
1033	/* sect too big */
1034	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1035	fdctrl->fifo[3] = kt;
1036	fdctrl->fifo[4] = kh;
1037	fdctrl->fifo[5] = ks;
1038	return;
1039	case 3:
1040	/* track too big */
1041	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1042	fdctrl->fifo[3] = kt;
1043	fdctrl->fifo[4] = kh;
1044	fdctrl->fifo[5] = ks;
1045	return;
1046	case 4:
1047	/* No seek enabled */
1048	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1049	fdctrl->fifo[3] = kt;
1050	fdctrl->fifo[4] = kh;
1051	fdctrl->fifo[5] = ks;
1052	return;
1053	case 1:
1054	did_seek = 1;
1055	break;
1056	default:
1057	break;
1058	}
1059	/* Set the FIFO state */
1060	fdctrl->data_dir = direction;
1061	fdctrl->data_pos = 0;
1062	FD_SET_STATE(fdctrl->data_state, FD_STATE_DATA); /* FIFO ready for data */
1063	if (fdctrl->fifo[0] & 0x80)
1064	fdctrl->data_state \|= FD_STATE_MULTI;
1065	else
1066	fdctrl->data_state &= ~FD_STATE_MULTI;
1067	if (did_seek)
1068	fdctrl->data_state \|= FD_STATE_SEEK;
1069	else
1070	fdctrl->data_state &= ~FD_STATE_SEEK;
1071	if (fdctrl->fifo[5] == 00) {
1072	fdctrl->data_len = fdctrl->fifo[8];
1073	} else {
1074	int tmp;
1075	fdctrl->data_len = 128 << fdctrl->fifo[5];
1076	tmp = (cur_drv->last_sect - ks + 1);
1077	if (fdctrl->fifo[0] & 0x80)
1078	tmp += cur_drv->last_sect;
1079	fdctrl->data_len *= tmp;
1080	}
1081	fdctrl->eot = fdctrl->fifo[6];
1082	if (fdctrl->dma_en) {
1083	int dma_mode;
1084	/* DMA transfer are enabled. Check if DMA channel is well programmed */
1085	#ifndef VBOX
1086	dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
1087	#else
1088	dma_mode = fdctrl->pDevIns->pDevHlp->pfnDMAGetChannelMode (
1089	fdctrl->pDevIns,
1090	fdctrl->dma_chann
1091	);
1092	#endif
1093	dma_mode = (dma_mode >> 2) & 3;
1094	FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
1095	dma_mode, direction,
1096	(128 << fdctrl->fifo[5]) *
1097	(cur_drv->last_sect - ks + 1), fdctrl->data_len);
1098	if (((direction == FD_DIR_SCANE \|\| direction == FD_DIR_SCANL \|\|
1099	direction == FD_DIR_SCANH) && dma_mode == 0) \|\|
1100	(direction == FD_DIR_WRITE && dma_mode == 2) \|\|
1101	(direction == FD_DIR_READ && dma_mode == 1)) {
1102	/* No access is allowed until DMA transfer has completed */
1103	fdctrl->state \|= FD_CTRL_BUSY;
1104	/* Now, we just have to wait for the DMA controller to
1105	* recall us...
1106	*/
1107	#ifndef VBOX
1108	DMA_hold_DREQ(fdctrl->dma_chann);
1109	DMA_schedule(fdctrl->dma_chann);
1110	#else
1111	fdctrl->pDevIns->pDevHlp->pfnDMASetDREQ (fdctrl->pDevIns,
1112	fdctrl->dma_chann,
1113	1);
1114	fdctrl->pDevIns->pDevHlp->pfnDMASchedule (fdctrl->pDevIns);
1115	#endif
1116	return;
1117	} else {
1118	FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
1119	}
1120	}
1121	FLOPPY_DPRINTF("start non-DMA transfer\n");
1122	/* IO based transfer: calculate len */
1123	fdctrl_raise_irq(fdctrl, 0x00);
1124
1125	return;
1126	}
1127
1128	/* Prepare a transfer of deleted data */
1129	static void fdctrl_start_transfer_del (fdctrl_t *fdctrl, int direction)
1130	{
1131	/* We don't handle deleted data,
1132	* so we don't return ANYTHING
1133	*/
1134	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1135	}
1136
1137	#if 0
1138	#include <stdio.h>
1139	#include <stdlib.h>
1140
1141	static FILE * f;
1142	static void dump (void *p, size_t len)
1143	{
1144	size_t n;
1145
1146	if (!f) {
1147	f = fopen ("dump", "wb");
1148	if (!f)
1149	exit (0);
1150	}
1151
1152	n = fwrite (p, len, 1, f);
1153	if (n != 1) {
1154	AssertMsgFailed (("failed to dump\n"));
1155	exit (0);
1156	}
1157	}
1158	#else
1159	#define dump(a,b) do { } while (0)
1160	#endif
1161
1162	/* handlers for DMA transfers */
1163	#ifdef VBOX
1164	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
1165	void *opaque,
1166	unsigned nchan,
1167	uint32_t dma_pos,
1168	uint32_t dma_len)
1169	#else
1170	static int fdctrl_transfer_handler (void *opaque, int nchan,
1171	int dma_pos, int dma_len)
1172	#endif
1173	{
1174	fdctrl_t *fdctrl;
1175	fdrive_t *cur_drv;
1176	#ifdef VBOX
1177	int rc;
1178	uint32_t len, start_pos, rel_pos;
1179	#else
1180	int len, start_pos, rel_pos;
1181	#endif
1182	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1183
1184	fdctrl = opaque;
1185	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1186	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1187	return 0;
1188	}
1189	cur_drv = get_cur_drv(fdctrl);
1190	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1191	fdctrl->data_dir == FD_DIR_SCANH)
1192	status2 = 0x04;
1193	if (dma_len > fdctrl->data_len)
1194	dma_len = fdctrl->data_len;
1195	#ifndef VBOX
1196	if (cur_drv->bs == NULL) {
1197	#else /* !VBOX */
1198	if (cur_drv->pDrvBlock == NULL) {
1199	#endif
1200	if (fdctrl->data_dir == FD_DIR_WRITE)
1201	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1202	else
1203	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1204	len = 0;
1205	goto transfer_error;
1206	}
1207	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1208	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) {
1209	len = dma_len - fdctrl->data_pos;
1210	if (len + rel_pos > FD_SECTOR_LEN)
1211	len = FD_SECTOR_LEN - rel_pos;
1212	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x "
1213	"(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos,
1214	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1215	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1216	fd_sector(cur_drv) * 512);
1217	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1218	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1219	/* READ & SCAN commands and realign to a sector for WRITE */
1220	#ifndef VBOX
1221	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1222	fdctrl->fifo, 1) < 0) {
1223	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1224	fd_sector(cur_drv));
1225	/* Sure, image size is too small... */
1226	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1227	}
1228	#else
1229	cur_drv->Led.Asserted.s.fReading
1230	= cur_drv->Led.Actual.s.fReading = 1;
1231
1232	rc = cur_drv->pDrvBlock->pfnRead (
1233	cur_drv->pDrvBlock,
1234	fd_sector (cur_drv) * 512,
1235	fdctrl->fifo,
1236	1 * 512
1237	);
1238
1239	cur_drv->Led.Actual.s.fReading = 0;
1240
1241	if (VBOX_FAILURE (rc)) {
1242	AssertMsgFailed (
1243	("Floppy: error getting sector %d, rc = %Vrc",
1244	fd_sector (cur_drv), rc));
1245	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1246	}
1247	#endif
1248	}
1249	switch (fdctrl->data_dir) {
1250	case FD_DIR_READ:
1251	/* READ commands */
1252	#ifdef VBOX
1253	{
1254	uint32_t read;
1255	int rc = fdctrl->pDevIns->pDevHlp->pfnDMAWriteMemory(
1256	fdctrl->pDevIns,
1257	nchan,
1258	fdctrl->fifo + rel_pos,
1259	fdctrl->data_pos,
1260	len,
1261	&read);
1262	dump (fdctrl->fifo + rel_pos, len);
1263	AssertMsgRC (rc,
1264	("DMAWriteMemory -> %Vrc\n", rc));
1265	}
1266	#else
1267	DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
1268	fdctrl->data_pos, len);
1269	#endif
1270	/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
1271	/* fdctrl->fifo + rel_pos, len); */
1272	break;
1273	case FD_DIR_WRITE:
1274	/* WRITE commands */
1275	#ifdef VBOX
1276	{
1277	uint32_t written;
1278	int rc = fdctrl->pDevIns->pDevHlp->pfnDMAReadMemory(
1279	fdctrl->pDevIns,
1280	nchan,
1281	fdctrl->fifo + rel_pos,
1282	fdctrl->data_pos,
1283	len,
1284	&written);
1285	AssertMsgRC (rc,
1286	("DMAReadMemory -> %Vrc\n", rc));
1287	}
1288	#else
1289	DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
1290	fdctrl->data_pos, len);
1291	#endif
1292	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1293	/* fdctrl->fifo + rel_pos, len); */
1294	#ifndef VBOX
1295	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1296	fdctrl->fifo, 1) < 0) {
1297	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1298	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1299	goto transfer_error;
1300	}
1301	#else /* VBOX */
1302	cur_drv->Led.Asserted.s.fWriting
1303	= cur_drv->Led.Actual.s.fWriting = 1;
1304
1305	rc = cur_drv->pDrvBlock->pfnWrite (
1306	cur_drv->pDrvBlock,
1307	fd_sector (cur_drv) * 512,
1308	fdctrl->fifo,
1309	1 * 512
1310	);
1311
1312	cur_drv->Led.Actual.s.fWriting = 0;
1313
1314	if (VBOX_FAILURE (rc)) {
1315	AssertMsgFailed (("Floppy: error writing sector %d. rc=%Vrc",
1316	fd_sector (cur_drv), rc));
1317	fdctrl_stop_transfer (fdctrl, 0x60, 0x00, 0x00);
1318	goto transfer_error;
1319	}
1320	#endif
1321	break;
1322	default:
1323	/* SCAN commands */
1324	{
1325	uint8_t tmpbuf[FD_SECTOR_LEN];
1326	int ret;
1327	#ifdef VBOX
1328	int rc;
1329	uint32_t read;
1330
1331	rc = fdctrl->pDevIns->pDevHlp->pfnDMAReadMemory (
1332	fdctrl->pDevIns,
1333	nchan,
1334	tmpbuf,
1335	fdctrl->data_pos,
1336	len,
1337	&read);
1338	AssertMsg (VBOX_SUCCESS (rc),
1339	("DMAReadMemory -> %Vrc\n", rc));
1340	#else
1341	DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
1342	#endif
1343	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1344	/* tmpbuf, len); */
1345	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1346	if (ret == 0) {
1347	status2 = 0x08;
1348	goto end_transfer;
1349	}
1350	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1351	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1352	status2 = 0x00;
1353	goto end_transfer;
1354	}
1355	}
1356	break;
1357	}
1358	fdctrl->data_pos += len;
1359	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1360	if (rel_pos == 0) {
1361	/* Seek to next sector */
1362	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1363	cur_drv->head, cur_drv->track, cur_drv->sect,
1364	fd_sector(cur_drv),
1365	fdctrl->data_pos - len);
1366	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1367	error in fact */
1368	if (cur_drv->sect >= cur_drv->last_sect \|\|
1369	cur_drv->sect == fdctrl->eot) {
1370	cur_drv->sect = 1;
1371	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1372	if (cur_drv->head == 0 &&
1373	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1374	cur_drv->head = 1;
1375	} else {
1376	cur_drv->head = 0;
1377	cur_drv->track++;
1378	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1379	break;
1380	}
1381	} else {
1382	cur_drv->track++;
1383	break;
1384	}
1385	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1386	cur_drv->head, cur_drv->track,
1387	cur_drv->sect, fd_sector(cur_drv));
1388	} else {
1389	cur_drv->sect++;
1390	}
1391	}
1392	}
1393	end_transfer:
1394	len = fdctrl->data_pos - start_pos;
1395	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1396	fdctrl->data_pos, len, fdctrl->data_len);
1397	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1398	fdctrl->data_dir == FD_DIR_SCANL \|\|
1399	fdctrl->data_dir == FD_DIR_SCANH)
1400	status2 = 0x08;
1401	if (FD_DID_SEEK(fdctrl->data_state))
1402	status0 \|= 0x20;
1403	fdctrl->data_len -= len;
1404	/* if (fdctrl->data_len == 0) */
1405	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1406	transfer_error:
1407
1408	return len;
1409	}
1410
1411	#if 0
1412	{
1413	fdctrl_t *fdctrl;
1414	fdrive_t *cur_drv;
1415	int len, start_pos, rel_pos;
1416	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1417
1418	fdctrl = opaque;
1419	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1420	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1421	return 0;
1422	}
1423	cur_drv = get_cur_drv(fdctrl);
1424	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1425	fdctrl->data_dir == FD_DIR_SCANH)
1426	status2 = 0x04;
1427	if (size > fdctrl->data_len)
1428	size = fdctrl->data_len;
1429	#ifndef VBOX
1430	if (cur_drv->bs == NULL) {
1431	#else
1432	if (cur_drv->pDrvBase == NULL) {
1433	#endif
1434	if (fdctrl->data_dir == FD_DIR_WRITE)
1435	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1436	else
1437	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1438	len = 0;
1439	goto transfer_error;
1440	}
1441	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1442	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < size;) {
1443	len = size - fdctrl->data_pos;
1444	if (len + rel_pos > FD_SECTOR_LEN)
1445	len = FD_SECTOR_LEN - rel_pos;
1446	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x %02x "
1447	"(%d-0x%08x 0x%08x)\n", len, size, fdctrl->data_pos,
1448	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1449	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1450	fd_sector(cur_drv) * 512, addr);
1451	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1452	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1453	/* READ & SCAN commands and realign to a sector for WRITE */
1454	#ifndef VBOX
1455	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1456	fdctrl->fifo, 1) < 0) {
1457	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1458	fd_sector(cur_drv));
1459	/* Sure, image size is too small... */
1460	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1461	}
1462	#else
1463	int rc;
1464
1465	cur_drv->Led.Asserted.s.fReading
1466	= cur_drv->Led.Actual.s.fReading = 1;
1467
1468	rc = cur_drv->pDrvBlock->pfnRead (
1469	cur_drv->pDrvBlock,
1470	fd_sector (cur_drv) * 512,
1471	fdctrl->fifo,
1472	1 * 512
1473	);
1474
1475	cur_drv->Led.Actual.s.fReading = 0;
1476
1477	if (VBOX_FAILURE (rc)) {
1478	AssertMsgFailed (
1479	("Floppy: error getting sector %d. rc=%Vrc\n",
1480	fd_sector(cur_drv), rc));
1481	/* Sure, image size is too small... */
1482	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1483	}
1484	/* p_fd_activity = 1; /
1485	#endif
1486	}
1487	switch (fdctrl->data_dir) {
1488	case FD_DIR_READ:
1489	/* READ commands */
1490	#ifdef VBOX
1491	fdctrl->pDevIns->pDevHlp->pfnPhysWrite (
1492	fdctrl->pDevIns,
1493	addr + fdctrl->data_pos,
1494	fdctrl->fifo + rel_pos,
1495	len);
1496	#else
1497	cpu_physical_memory_write(addr + fdctrl->data_pos,
1498	fdctrl->fifo + rel_pos, len);
1499	#endif
1500	break;
1501	case FD_DIR_WRITE:
1502	/* WRITE commands */
1503	#ifdef VBOX
1504	{
1505	int rc;
1506
1507	fdctrl->pDevIns->pDevHlp->pfnPhysRead (
1508	fdctrl->pDevIns,
1509	addr + fdctrl->data_pos,
1510	fdctrl->fifo + rel_pos,
1511	len);
1512
1513	cur_drv->Led.Asserted.s.fWriting
1514	= cur_drv->Led.Actual.s.fWriting = 1;
1515
1516	rc = cur_drv->pDrvBlock->pfnWrite (
1517	cur_drv->pDrvBlock,
1518	fd_sector (cur_drv) * 512,
1519	fdctrl->fifo,
1520	1 * 512
1521	);
1522
1523	cur_drv->Led.Actual.s.fWriting = 0;
1524
1525	if (VBOX_FAILURE (rc)) {
1526	AssertMsgFailed (
1527	("Floppy: error writting sector %d. rc=%Vrc\n",
1528	fd_sector(cur_drv), rc));
1529	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1530	goto transfer_error;
1531	}
1532	}
1533	/* p_fd_activity = 2; /
1534	#else /* !VBOX */
1535	cpu_physical_memory_read(addr + fdctrl->data_pos,
1536	fdctrl->fifo + rel_pos, len);
1537	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1538	fdctrl->fifo, 1) < 0) {
1539	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1540	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1541	goto transfer_error;
1542	}
1543	#endif
1544	break;
1545	default:
1546	/* SCAN commands */
1547	{
1548	uint8_t tmpbuf[FD_SECTOR_LEN];
1549	int ret;
1550	#ifdef VBOX
1551	fdctrl->pDevIns->pDevHlp->pfnPhysRead (
1552	fdctrl->pDevIns,
1553	addr + fdctrl->data_pos,
1554	tmpbuf,
1555	len);
1556	#else
1557	cpu_physical_memory_read(addr + fdctrl->data_pos,
1558	tmpbuf, len);
1559	#endif
1560	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1561	if (ret == 0) {
1562	status2 = 0x08;
1563	goto end_transfer;
1564	}
1565	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1566	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1567	status2 = 0x00;
1568	goto end_transfer;
1569	}
1570	}
1571	break;
1572	}
1573	fdctrl->data_pos += len;
1574	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1575	if (rel_pos == 0) {
1576	/* Seek to next sector */
1577	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1578	cur_drv->head, cur_drv->track, cur_drv->sect,
1579	fd_sector(cur_drv),
1580	fdctrl->data_pos - size);
1581	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1582	error in fact */
1583	if (cur_drv->sect >= cur_drv->last_sect \|\|
1584	cur_drv->sect == fdctrl->eot) {
1585	cur_drv->sect = 1;
1586	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1587	if (cur_drv->head == 0 &&
1588	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1589	cur_drv->head = 1;
1590	} else {
1591	cur_drv->head = 0;
1592	cur_drv->track++;
1593	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1594	break;
1595	}
1596	} else {
1597	cur_drv->track++;
1598	break;
1599	}
1600	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1601	cur_drv->head, cur_drv->track,
1602	cur_drv->sect, fd_sector(cur_drv));
1603	} else {
1604	cur_drv->sect++;
1605	}
1606	}
1607	}
1608	end_transfer:
1609	len = fdctrl->data_pos - start_pos;
1610	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1611	fdctrl->data_pos, len, fdctrl->data_len);
1612	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1613	fdctrl->data_dir == FD_DIR_SCANL \|\|
1614	fdctrl->data_dir == FD_DIR_SCANH)
1615	status2 = 0x08;
1616	if (FD_DID_SEEK(fdctrl->data_state))
1617	status0 \|= 0x20;
1618	fdctrl->data_len -= len;
1619	/* // if (fdctrl->data_len == 0) */
1620	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1621	transfer_error:
1622
1623	return len;
1624	}
1625	#endif
1626
1627	/* Data register : 0x05 */
1628	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
1629	{
1630	fdrive_t *cur_drv;
1631	uint32_t retval = 0;
1632	int pos, len;
1633	#ifdef VBOX
1634	int rc;
1635	#endif
1636
1637	cur_drv = get_cur_drv(fdctrl);
1638	fdctrl->state &= ~FD_CTRL_SLEEP;
1639	if (FD_STATE(fdctrl->data_state) == FD_STATE_CMD) {
1640	FLOPPY_ERROR("can't read data in CMD state\n");
1641	return 0;
1642	}
1643	pos = fdctrl->data_pos;
1644	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1645	pos %= FD_SECTOR_LEN;
1646	if (pos == 0) {
1647	len = fdctrl->data_len - fdctrl->data_pos;
1648	if (len > FD_SECTOR_LEN)
1649	len = FD_SECTOR_LEN;
1650	#ifdef VBOX
1651	cur_drv->Led.Asserted.s.fReading
1652	= cur_drv->Led.Actual.s.fReading = 1;
1653
1654	rc = cur_drv->pDrvBlock->pfnRead (
1655	cur_drv->pDrvBlock,
1656	fd_sector (cur_drv) * 512,
1657	fdctrl->fifo,
1658	len * 512
1659	);
1660
1661	cur_drv->Led.Actual.s.fReading = 0;
1662
1663	if (VBOX_FAILURE (rc)) {
1664	AssertMsgFailed (
1665	("Floppy: Failure to read sector %d. rc=%Vrc",
1666	fd_sector (cur_drv), rc));
1667	}
1668	#else
1669	bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1670	fdctrl->fifo, len);
1671	#endif
1672	}
1673	}
1674	retval = fdctrl->fifo[pos];
1675	if (++fdctrl->data_pos == fdctrl->data_len) {
1676	fdctrl->data_pos = 0;
1677	/* Switch from transfer mode to status mode
1678	* then from status mode to command mode
1679	*/
1680	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1681	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1682	} else {
1683	fdctrl_reset_fifo(fdctrl);
1684	fdctrl_reset_irq(fdctrl);
1685	}
1686	}
1687	FLOPPY_DPRINTF("data register: 0x%02x\n", retval);
1688
1689	return retval;
1690	}
1691
1692	static void fdctrl_format_sector (fdctrl_t *fdctrl)
1693	{
1694	fdrive_t *cur_drv;
1695	uint8_t kh, kt, ks;
1696	int did_seek;
1697	#ifdef VBOX
1698	int ok = 0, rc;
1699	#endif
1700
1701	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1702	cur_drv = get_cur_drv(fdctrl);
1703	kt = fdctrl->fifo[6];
1704	kh = fdctrl->fifo[7];
1705	ks = fdctrl->fifo[8];
1706	FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n",
1707	fdctrl->cur_drv, kh, kt, ks,
1708	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1709	did_seek = 0;
1710	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1711	case 2:
1712	/* sect too big */
1713	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1714	fdctrl->fifo[3] = kt;
1715	fdctrl->fifo[4] = kh;
1716	fdctrl->fifo[5] = ks;
1717	return;
1718	case 3:
1719	/* track too big */
1720	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1721	fdctrl->fifo[3] = kt;
1722	fdctrl->fifo[4] = kh;
1723	fdctrl->fifo[5] = ks;
1724	return;
1725	case 4:
1726	/* No seek enabled */
1727	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1728	fdctrl->fifo[3] = kt;
1729	fdctrl->fifo[4] = kh;
1730	fdctrl->fifo[5] = ks;
1731	return;
1732	case 1:
1733	did_seek = 1;
1734	fdctrl->data_state \|= FD_STATE_SEEK;
1735	break;
1736	default:
1737	break;
1738	}
1739	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1740	#ifdef VBOX
1741	/* p_fd_activity = 2; /
1742	if (cur_drv->pDrvBlock) {
1743	cur_drv->Led.Asserted.s.fWriting = cur_drv->Led.Actual.s.fWriting = 1;
1744
1745	rc = cur_drv->pDrvBlock->pfnWrite (
1746	cur_drv->pDrvBlock,
1747	fd_sector (cur_drv) * 512,
1748	fdctrl->fifo,
1749	1 * 512
1750	);
1751
1752	cur_drv->Led.Actual.s.fWriting = 0;
1753
1754	if (VBOX_FAILURE (rc)) {
1755	AssertMsgFailed (("Floppy: error formating sector %d. rc=%Vrc\n",
1756	fd_sector (cur_drv), rc));
1757	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1758	}
1759	else {
1760	ok = 1;
1761	}
1762	}
1763	if (ok) {
1764	#else
1765	if (cur_drv->bs == NULL \|\|
1766	bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
1767	FLOPPY_ERROR("formating sector %d\n", fd_sector(cur_drv));
1768	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1769	} else {
1770	#endif
1771	if (cur_drv->sect == cur_drv->last_sect) {
1772	fdctrl->data_state &= ~FD_STATE_FORMAT;
1773	/* Last sector done */
1774	if (FD_DID_SEEK(fdctrl->data_state))
1775	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1776	else
1777	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
1778	} else {
1779	/* More to do */
1780	fdctrl->data_pos = 0;
1781	fdctrl->data_len = 4;
1782	}
1783	}
1784	}
1785
1786	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
1787	{
1788	fdrive_t *cur_drv;
1789
1790	cur_drv = get_cur_drv(fdctrl);
1791	/* Reset mode */
1792	if (fdctrl->state & FD_CTRL_RESET) {
1793	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
1794	return;
1795	}
1796	fdctrl->state &= ~FD_CTRL_SLEEP;
1797	if (FD_STATE(fdctrl->data_state) == FD_STATE_STATUS) {
1798	FLOPPY_ERROR("can't write data in status mode\n");
1799	return;
1800	}
1801	/* Is it write command time ? */
1802	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1803	/* FIFO data write */
1804	fdctrl->fifo[fdctrl->data_pos++] = value;
1805	if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) \|\|
1806	fdctrl->data_pos == fdctrl->data_len) {
1807	#ifdef VBOX
1808	int rc;
1809	/* p_fd_activity = 2; /
1810	cur_drv->Led.Asserted.s.fWriting
1811	= cur_drv->Led.Actual.s.fWriting = 1;
1812
1813	rc = cur_drv->pDrvBlock->pfnWrite (
1814	cur_drv->pDrvBlock,
1815	fd_sector (cur_drv) * 512,
1816	fdctrl->fifo,
1817	FD_SECTOR_LEN * 512
1818	);
1819
1820	cur_drv->Led.Actual.s.fWriting = 0;
1821
1822	if (VBOX_FAILURE (rc)) {
1823	AssertMsgFailed (
1824	("Floppy: failed to write sector %d. rc=%Vrc\n",
1825	fd_sector (cur_drv), rc));
1826	}
1827	#else
1828	bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1829	fdctrl->fifo, FD_SECTOR_LEN);
1830	#endif
1831	}
1832	/* Switch from transfer mode to status mode
1833	* then from status mode to command mode
1834	*/
1835	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA)
1836	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1837	return;
1838	}
1839	if (fdctrl->data_pos == 0) {
1840	/* Command */
1841	switch (value & 0x5F) {
1842	case 0x46:
1843	/* READ variants */
1844	FLOPPY_DPRINTF("READ command\n");
1845	/* 8 parameters cmd */
1846	fdctrl->data_len = 9;
1847	goto enqueue;
1848	case 0x4C:
1849	/* READ_DELETED variants */
1850	FLOPPY_DPRINTF("READ_DELETED command\n");
1851	/* 8 parameters cmd */
1852	fdctrl->data_len = 9;
1853	goto enqueue;
1854	case 0x50:
1855	/* SCAN_EQUAL variants */
1856	FLOPPY_DPRINTF("SCAN_EQUAL command\n");
1857	/* 8 parameters cmd */
1858	fdctrl->data_len = 9;
1859	goto enqueue;
1860	case 0x56:
1861	/* VERIFY variants */
1862	FLOPPY_DPRINTF("VERIFY command\n");
1863	/* 8 parameters cmd */
1864	fdctrl->data_len = 9;
1865	goto enqueue;
1866	case 0x59:
1867	/* SCAN_LOW_OR_EQUAL variants */
1868	FLOPPY_DPRINTF("SCAN_LOW_OR_EQUAL command\n");
1869	/* 8 parameters cmd */
1870	fdctrl->data_len = 9;
1871	goto enqueue;
1872	case 0x5D:
1873	/* SCAN_HIGH_OR_EQUAL variants */
1874	FLOPPY_DPRINTF("SCAN_HIGH_OR_EQUAL command\n");
1875	/* 8 parameters cmd */
1876	fdctrl->data_len = 9;
1877	goto enqueue;
1878	default:
1879	break;
1880	}
1881	switch (value & 0x7F) {
1882	case 0x45:
1883	/* WRITE variants */
1884	FLOPPY_DPRINTF("WRITE command\n");
1885	/* 8 parameters cmd */
1886	fdctrl->data_len = 9;
1887	goto enqueue;
1888	case 0x49:
1889	/* WRITE_DELETED variants */
1890	FLOPPY_DPRINTF("WRITE_DELETED command\n");
1891	/* 8 parameters cmd */
1892	fdctrl->data_len = 9;
1893	goto enqueue;
1894	default:
1895	break;
1896	}
1897	switch (value) {
1898	case 0x03:
1899	/* SPECIFY */
1900	FLOPPY_DPRINTF("SPECIFY command\n");
1901	/* 1 parameter cmd */
1902	fdctrl->data_len = 3;
1903	goto enqueue;
1904	case 0x04:
1905	/* SENSE_DRIVE_STATUS */
1906	FLOPPY_DPRINTF("SENSE_DRIVE_STATUS command\n");
1907	/* 1 parameter cmd */
1908	fdctrl->data_len = 2;
1909	goto enqueue;
1910	case 0x07:
1911	/* RECALIBRATE */
1912	FLOPPY_DPRINTF("RECALIBRATE command\n");
1913	/* 1 parameter cmd */
1914	fdctrl->data_len = 2;
1915	goto enqueue;
1916	case 0x08:
1917	/* SENSE_INTERRUPT_STATUS */
1918	FLOPPY_DPRINTF("SENSE_INTERRUPT_STATUS command (%02x)\n",
1919	fdctrl->int_status);
1920	/* No parameters cmd: returns status if no interrupt */
1921	#if 0
1922	fdctrl->fifo[0] =
1923	fdctrl->int_status \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1924	#else
1925	/* XXX: int_status handling is broken for read/write
1926	commands, so we do this hack. It should be suppressed
1927	ASAP */
1928	fdctrl->fifo[0] =
1929	0x20 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1930	#endif
1931	fdctrl->fifo[1] = cur_drv->track;
1932	fdctrl_set_fifo(fdctrl, 2, 0);
1933	fdctrl_reset_irq(fdctrl);
1934	fdctrl->int_status = 0xC0;
1935	return;
1936	case 0x0E:
1937	/* DUMPREG */
1938	FLOPPY_DPRINTF("DUMPREG command\n");
1939	/* Drives position */
1940	fdctrl->fifo[0] = drv0(fdctrl)->track;
1941	fdctrl->fifo[1] = drv1(fdctrl)->track;
1942	fdctrl->fifo[2] = 0;
1943	fdctrl->fifo[3] = 0;
1944	/* timers */
1945	fdctrl->fifo[4] = fdctrl->timer0;
1946	fdctrl->fifo[5] = (fdctrl->timer1 << 1) \| fdctrl->dma_en;
1947	fdctrl->fifo[6] = cur_drv->last_sect;
1948	fdctrl->fifo[7] = (fdctrl->lock << 7) \|
1949	(cur_drv->perpendicular << 2);
1950	fdctrl->fifo[8] = fdctrl->config;
1951	fdctrl->fifo[9] = fdctrl->precomp_trk;
1952	fdctrl_set_fifo(fdctrl, 10, 0);
1953	return;
1954	case 0x0F:
1955	/* SEEK */
1956	FLOPPY_DPRINTF("SEEK command\n");
1957	/* 2 parameters cmd */
1958	fdctrl->data_len = 3;
1959	goto enqueue;
1960	case 0x10:
1961	/* VERSION */
1962	FLOPPY_DPRINTF("VERSION command\n");
1963	/* No parameters cmd */
1964	/* Controller's version */
1965	fdctrl->fifo[0] = fdctrl->version;
1966	fdctrl_set_fifo(fdctrl, 1, 1);
1967	return;
1968	case 0x12:
1969	/* PERPENDICULAR_MODE */
1970	FLOPPY_DPRINTF("PERPENDICULAR_MODE command\n");
1971	/* 1 parameter cmd */
1972	fdctrl->data_len = 2;
1973	goto enqueue;
1974	case 0x13:
1975	/* CONFIGURE */
1976	FLOPPY_DPRINTF("CONFIGURE command\n");
1977	/* 3 parameters cmd */
1978	fdctrl->data_len = 4;
1979	goto enqueue;
1980	case 0x14:
1981	/* UNLOCK */
1982	FLOPPY_DPRINTF("UNLOCK command\n");
1983	/* No parameters cmd */
1984	fdctrl->lock = 0;
1985	fdctrl->fifo[0] = 0;
1986	fdctrl_set_fifo(fdctrl, 1, 0);
1987	return;
1988	case 0x17:
1989	/* POWERDOWN_MODE */
1990	FLOPPY_DPRINTF("POWERDOWN_MODE command\n");
1991	/* 2 parameters cmd */
1992	fdctrl->data_len = 3;
1993	goto enqueue;
1994	case 0x18:
1995	/* PART_ID */
1996	FLOPPY_DPRINTF("PART_ID command\n");
1997	/* No parameters cmd */
1998	fdctrl->fifo[0] = 0x41; /* Stepping 1 */
1999	fdctrl_set_fifo(fdctrl, 1, 0);
2000	return;
2001	case 0x2C:
2002	/* SAVE */
2003	FLOPPY_DPRINTF("SAVE command\n");
2004	/* No parameters cmd */
2005	fdctrl->fifo[0] = 0;
2006	fdctrl->fifo[1] = 0;
2007	/* Drives position */
2008	fdctrl->fifo[2] = drv0(fdctrl)->track;
2009	fdctrl->fifo[3] = drv1(fdctrl)->track;
2010	fdctrl->fifo[4] = 0;
2011	fdctrl->fifo[5] = 0;
2012	/* timers */
2013	fdctrl->fifo[6] = fdctrl->timer0;
2014	fdctrl->fifo[7] = fdctrl->timer1;
2015	fdctrl->fifo[8] = cur_drv->last_sect;
2016	fdctrl->fifo[9] = (fdctrl->lock << 7) \|
2017	(cur_drv->perpendicular << 2);
2018	fdctrl->fifo[10] = fdctrl->config;
2019	fdctrl->fifo[11] = fdctrl->precomp_trk;
2020	fdctrl->fifo[12] = fdctrl->pwrd;
2021	fdctrl->fifo[13] = 0;
2022	fdctrl->fifo[14] = 0;
2023	fdctrl_set_fifo(fdctrl, 15, 1);
2024	return;
2025	case 0x33:
2026	/* OPTION */
2027	FLOPPY_DPRINTF("OPTION command\n");
2028	/* 1 parameter cmd */
2029	fdctrl->data_len = 2;
2030	goto enqueue;
2031	case 0x42:
2032	/* READ_TRACK */
2033	FLOPPY_DPRINTF("READ_TRACK command\n");
2034	/* 8 parameters cmd */
2035	fdctrl->data_len = 9;
2036	goto enqueue;
2037	case 0x4A:
2038	/* READ_ID */
2039	FLOPPY_DPRINTF("READ_ID command\n");
2040	/* 1 parameter cmd */
2041	fdctrl->data_len = 2;
2042	goto enqueue;
2043	case 0x4C:
2044	/* RESTORE */
2045	FLOPPY_DPRINTF("RESTORE command\n");
2046	/* 17 parameters cmd */
2047	fdctrl->data_len = 18;
2048	goto enqueue;
2049	case 0x4D:
2050	/* FORMAT_TRACK */
2051	FLOPPY_DPRINTF("FORMAT_TRACK command\n");
2052	/* 5 parameters cmd */
2053	fdctrl->data_len = 6;
2054	goto enqueue;
2055	case 0x8E:
2056	/* DRIVE_SPECIFICATION_COMMAND */
2057	FLOPPY_DPRINTF("DRIVE_SPECIFICATION_COMMAND command\n");
2058	/* 5 parameters cmd */
2059	fdctrl->data_len = 6;
2060	goto enqueue;
2061	case 0x8F:
2062	/* RELATIVE_SEEK_OUT */
2063	FLOPPY_DPRINTF("RELATIVE_SEEK_OUT command\n");
2064	/* 2 parameters cmd */
2065	fdctrl->data_len = 3;
2066	goto enqueue;
2067	case 0x94:
2068	/* LOCK */
2069	FLOPPY_DPRINTF("LOCK command\n");
2070	/* No parameters cmd */
2071	fdctrl->lock = 1;
2072	fdctrl->fifo[0] = 0x10;
2073	fdctrl_set_fifo(fdctrl, 1, 1);
2074	return;
2075	case 0xCD:
2076	/* FORMAT_AND_WRITE */
2077	FLOPPY_DPRINTF("FORMAT_AND_WRITE command\n");
2078	/* 10 parameters cmd */
2079	fdctrl->data_len = 11;
2080	goto enqueue;
2081	case 0xCF:
2082	/* RELATIVE_SEEK_IN */
2083	FLOPPY_DPRINTF("RELATIVE_SEEK_IN command\n");
2084	/* 2 parameters cmd */
2085	fdctrl->data_len = 3;
2086	goto enqueue;
2087	default:
2088	/* Unknown command */
2089	FLOPPY_ERROR("unknown command: 0x%02x\n", value);
2090	fdctrl_unimplemented(fdctrl);
2091	return;
2092	}
2093	}
2094	enqueue:
2095	FLOPPY_DPRINTF("%s: %02x\n", __func__, value);
2096	fdctrl->fifo[fdctrl->data_pos] = value;
2097	if (++fdctrl->data_pos == fdctrl->data_len) {
2098	/* We now have all parameters
2099	* and will be able to treat the command
2100	*/
2101	if (fdctrl->data_state & FD_STATE_FORMAT) {
2102	fdctrl_format_sector(fdctrl);
2103	return;
2104	}
2105	switch (fdctrl->fifo[0] & 0x1F) {
2106	case 0x06:
2107	{
2108	/* READ variants */
2109	FLOPPY_DPRINTF("treat READ command\n");
2110	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2111	return;
2112	}
2113	case 0x0C:
2114	/* READ_DELETED variants */
2115	/* // FLOPPY_DPRINTF("treat READ_DELETED command\n"); */
2116	FLOPPY_ERROR("treat READ_DELETED command\n");
2117	fdctrl_start_transfer_del(fdctrl, FD_DIR_READ);
2118	return;
2119	case 0x16:
2120	/* VERIFY variants */
2121	/* // FLOPPY_DPRINTF("treat VERIFY command\n"); */
2122	FLOPPY_ERROR("treat VERIFY command\n");
2123	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
2124	return;
2125	case 0x10:
2126	/* SCAN_EQUAL variants */
2127	/* // FLOPPY_DPRINTF("treat SCAN_EQUAL command\n"); */
2128	FLOPPY_ERROR("treat SCAN_EQUAL command\n");
2129	fdctrl_start_transfer(fdctrl, FD_DIR_SCANE);
2130	return;
2131	case 0x19:
2132	/* SCAN_LOW_OR_EQUAL variants */
2133	/* // FLOPPY_DPRINTF("treat SCAN_LOW_OR_EQUAL command\n"); */
2134	FLOPPY_ERROR("treat SCAN_LOW_OR_EQUAL command\n");
2135	fdctrl_start_transfer(fdctrl, FD_DIR_SCANL);
2136	return;
2137	case 0x1D:
2138	/* SCAN_HIGH_OR_EQUAL variants */
2139	/* // FLOPPY_DPRINTF("treat SCAN_HIGH_OR_EQUAL command\n"); */
2140	FLOPPY_ERROR("treat SCAN_HIGH_OR_EQUAL command\n");
2141	fdctrl_start_transfer(fdctrl, FD_DIR_SCANH);
2142	return;
2143	default:
2144	break;
2145	}
2146	switch (fdctrl->fifo[0] & 0x3F) {
2147	case 0x05:
2148	/* WRITE variants */
2149	FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl->fifo[0]);
2150	fdctrl_start_transfer(fdctrl, FD_DIR_WRITE);
2151	return;
2152	case 0x09:
2153	/* WRITE_DELETED variants */
2154	/* // FLOPPY_DPRINTF("treat WRITE_DELETED command\n"); */
2155	FLOPPY_ERROR("treat WRITE_DELETED command\n");
2156	fdctrl_start_transfer_del(fdctrl, FD_DIR_WRITE);
2157	return;
2158	default:
2159	break;
2160	}
2161	switch (fdctrl->fifo[0]) {
2162	case 0x03:
2163	/* SPECIFY */
2164	FLOPPY_DPRINTF("treat SPECIFY command\n");
2165	fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
2166	fdctrl->timer1 = fdctrl->fifo[2] >> 1;
2167	fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
2168	/* No result back */
2169	fdctrl_reset_fifo(fdctrl);
2170	break;
2171	case 0x04:
2172	/* SENSE_DRIVE_STATUS */
2173	FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
2174	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2175	cur_drv = get_cur_drv(fdctrl);
2176	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2177	/* 1 Byte status back */
2178	fdctrl->fifo[0] = (cur_drv->ro << 6) \|
2179	(cur_drv->track == 0 ? 0x10 : 0x00) \|
2180	(cur_drv->head << 2) \|
2181	fdctrl->cur_drv \|
2182	0x28;
2183	fdctrl_set_fifo(fdctrl, 1, 0);
2184	break;
2185	case 0x07:
2186	/* RECALIBRATE */
2187	FLOPPY_DPRINTF("treat RECALIBRATE command\n");
2188	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2189	cur_drv = get_cur_drv(fdctrl);
2190	fd_recalibrate(cur_drv);
2191	fdctrl_reset_fifo(fdctrl);
2192	/* Raise Interrupt */
2193	fdctrl_raise_irq(fdctrl, 0x20);
2194	break;
2195	case 0x0F:
2196	/* SEEK */
2197	FLOPPY_DPRINTF("treat SEEK command\n");
2198	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2199	cur_drv = get_cur_drv(fdctrl);
2200	fd_start(cur_drv);
2201	if (fdctrl->fifo[2] <= cur_drv->track)
2202	cur_drv->dir = 1;
2203	else
2204	cur_drv->dir = 0;
2205	fdctrl_reset_fifo(fdctrl);
2206	#ifndef VBOX
2207	if (fdctrl->fifo[2] > cur_drv->max_track) {
2208	#else
2209	if ( fdctrl->fifo[2] > cur_drv->max_track
2210	&& cur_drv->fMediaPresent) {
2211	#endif
2212	fdctrl_raise_irq(fdctrl, 0x60);
2213	} else {
2214	cur_drv->track = fdctrl->fifo[2];
2215	/* Raise Interrupt */
2216	fdctrl_raise_irq(fdctrl, 0x20);
2217	}
2218	break;
2219	case 0x12:
2220	/* PERPENDICULAR_MODE */
2221	FLOPPY_DPRINTF("treat PERPENDICULAR_MODE command\n");
2222	if (fdctrl->fifo[1] & 0x80)
2223	cur_drv->perpendicular = fdctrl->fifo[1] & 0x7;
2224	/* No result back */
2225	fdctrl_reset_fifo(fdctrl);
2226	break;
2227	case 0x13:
2228	/* CONFIGURE */
2229	FLOPPY_DPRINTF("treat CONFIGURE command\n");
2230	fdctrl->config = fdctrl->fifo[2];
2231	fdctrl->precomp_trk = fdctrl->fifo[3];
2232	/* No result back */
2233	fdctrl_reset_fifo(fdctrl);
2234	break;
2235	case 0x17:
2236	/* POWERDOWN_MODE */
2237	FLOPPY_DPRINTF("treat POWERDOWN_MODE command\n");
2238	fdctrl->pwrd = fdctrl->fifo[1];
2239	fdctrl->fifo[0] = fdctrl->fifo[1];
2240	fdctrl_set_fifo(fdctrl, 1, 1);
2241	break;
2242	case 0x33:
2243	/* OPTION */
2244	FLOPPY_DPRINTF("treat OPTION command\n");
2245	/* No result back */
2246	fdctrl_reset_fifo(fdctrl);
2247	break;
2248	case 0x42:
2249	/* READ_TRACK */
2250	/* // FLOPPY_DPRINTF("treat READ_TRACK command\n"); */
2251	FLOPPY_ERROR("treat READ_TRACK command\n");
2252	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2253	break;
2254	case 0x4A:
2255	/* READ_ID */
2256	FLOPPY_DPRINTF("treat READ_ID command\n");
2257	/* XXX: should set main status register to busy */
2258	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2259	#ifdef VBOX
2260	TMTimerSetMillies(fdctrl->result_timer, 1000 / 50);
2261	#else
2262	qemu_mod_timer(fdctrl->result_timer,
2263	qemu_get_clock(vm_clock) + (ticks_per_sec / 50));
2264	#endif
2265	break;
2266	case 0x4C:
2267	/* RESTORE */
2268	FLOPPY_DPRINTF("treat RESTORE command\n");
2269	/* Drives position */
2270	drv0(fdctrl)->track = fdctrl->fifo[3];
2271	drv1(fdctrl)->track = fdctrl->fifo[4];
2272	/* timers */
2273	fdctrl->timer0 = fdctrl->fifo[7];
2274	fdctrl->timer1 = fdctrl->fifo[8];
2275	cur_drv->last_sect = fdctrl->fifo[9];
2276	fdctrl->lock = fdctrl->fifo[10] >> 7;
2277	cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF;
2278	fdctrl->config = fdctrl->fifo[11];
2279	fdctrl->precomp_trk = fdctrl->fifo[12];
2280	fdctrl->pwrd = fdctrl->fifo[13];
2281	fdctrl_reset_fifo(fdctrl);
2282	break;
2283	case 0x4D:
2284	/* FORMAT_TRACK */
2285	FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
2286	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2287	cur_drv = get_cur_drv(fdctrl);
2288	fdctrl->data_state \|= FD_STATE_FORMAT;
2289	if (fdctrl->fifo[0] & 0x80)
2290	fdctrl->data_state \|= FD_STATE_MULTI;
2291	else
2292	fdctrl->data_state &= ~FD_STATE_MULTI;
2293	fdctrl->data_state &= ~FD_STATE_SEEK;
2294	cur_drv->bps =
2295	fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2];
2296	#if 0
2297	cur_drv->last_sect =
2298	cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] :
2299	fdctrl->fifo[3] / 2;
2300	#else
2301	cur_drv->last_sect = fdctrl->fifo[3];
2302	#endif
2303	/* Bochs BIOS is buggy and don't send format informations
2304	* for each sector. So, pretend all's done right now...
2305	*/
2306	fdctrl->data_state &= ~FD_STATE_FORMAT;
2307	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2308	break;
2309	case 0x8E:
2310	/* DRIVE_SPECIFICATION_COMMAND */
2311	FLOPPY_DPRINTF("treat DRIVE_SPECIFICATION_COMMAND command\n");
2312	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x80) {
2313	/* Command parameters done */
2314	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x40) {
2315	fdctrl->fifo[0] = fdctrl->fifo[1];
2316	fdctrl->fifo[2] = 0;
2317	fdctrl->fifo[3] = 0;
2318	fdctrl_set_fifo(fdctrl, 4, 1);
2319	} else {
2320	fdctrl_reset_fifo(fdctrl);
2321	}
2322	} else if (fdctrl->data_len > 7) {
2323	/* ERROR */
2324	fdctrl->fifo[0] = 0x80 \|
2325	(cur_drv->head << 2) \| fdctrl->cur_drv;
2326	fdctrl_set_fifo(fdctrl, 1, 1);
2327	}
2328	break;
2329	case 0x8F:
2330	/* RELATIVE_SEEK_OUT */
2331	FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
2332	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2333	cur_drv = get_cur_drv(fdctrl);
2334	fd_start(cur_drv);
2335	cur_drv->dir = 0;
2336	if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
2337	cur_drv->track = cur_drv->max_track - 1;
2338	} else {
2339	cur_drv->track += fdctrl->fifo[2];
2340	}
2341	fdctrl_reset_fifo(fdctrl);
2342	fdctrl_raise_irq(fdctrl, 0x20);
2343	break;
2344	case 0xCD:
2345	/* FORMAT_AND_WRITE */
2346	/* // FLOPPY_DPRINTF("treat FORMAT_AND_WRITE command\n"); */
2347	FLOPPY_ERROR("treat FORMAT_AND_WRITE command\n");
2348	fdctrl_unimplemented(fdctrl);
2349	break;
2350	case 0xCF:
2351	/* RELATIVE_SEEK_IN */
2352	FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
2353	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2354	cur_drv = get_cur_drv(fdctrl);
2355	fd_start(cur_drv);
2356	cur_drv->dir = 1;
2357	if (fdctrl->fifo[2] > cur_drv->track) {
2358	cur_drv->track = 0;
2359	} else {
2360	cur_drv->track -= fdctrl->fifo[2];
2361	}
2362	fdctrl_reset_fifo(fdctrl);
2363	/* Raise Interrupt */
2364	fdctrl_raise_irq(fdctrl, 0x20);
2365	break;
2366	}
2367	}
2368	}
2369
2370	static void fdctrl_result_timer(void *opaque)
2371	{
2372	fdctrl_t *fdctrl = opaque;
2373	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2374	}
2375
2376
2377	#ifdef VBOX
2378	static DECLCALLBACK(void) fdc_timer (PPDMDEVINS pDevIns, PTMTIMER pTimer)
2379	{
2380	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2381	fdctrl_result_timer (fdctrl);
2382	}
2383
2384	static DECLCALLBACK(int) fdc_io_write (PPDMDEVINS pDevIns,
2385	void *pvUser,
2386	RTIOPORT Port,
2387	uint32_t u32,
2388	unsigned cb)
2389	{
2390	if (cb == 1) {
2391	fdctrl_write (pvUser, Port, u32);
2392	}
2393	else {
2394	AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
2395	}
2396	return VINF_SUCCESS;
2397	}
2398
2399	static DECLCALLBACK(int) fdc_io_read (PPDMDEVINS pDevIns,
2400	void *pvUser,
2401	RTIOPORT Port,
2402	uint32_t *pu32,
2403	unsigned cb)
2404	{
2405	if (cb == 1) {
2406	*pu32 = fdctrl_read (pvUser, Port);
2407	return VINF_SUCCESS;
2408	}
2409	else {
2410	return VERR_IOM_IOPORT_UNUSED;
2411	}
2412	}
2413
2414	static DECLCALLBACK(int) SaveExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
2415	{
2416	fdctrl_t s = PDMINS2DATA (pDevIns, fdctrl_t );
2417	QEMUFile *f = pSSMHandle;
2418	unsigned int i;
2419
2420	qemu_put_8s (f, &s->version);
2421	qemu_put_8s (f, &s->irq_lvl);
2422	qemu_put_8s (f, &s->dma_chann);
2423	qemu_put_be32s (f, &s->io_base);
2424	qemu_put_8s (f, &s->state);
2425	qemu_put_8s (f, &s->dma_en);
2426	qemu_put_8s (f, &s->cur_drv);
2427	qemu_put_8s (f, &s->bootsel);
2428	qemu_put_buffer (f, s->fifo, FD_SECTOR_LEN);
2429	qemu_put_be32s (f, &s->data_pos);
2430	qemu_put_be32s (f, &s->data_len);
2431	qemu_put_8s (f, &s->data_state);
2432	qemu_put_8s (f, &s->data_dir);
2433	qemu_put_8s (f, &s->int_status);
2434	qemu_put_8s (f, &s->eot);
2435	qemu_put_8s (f, &s->timer0);
2436	qemu_put_8s (f, &s->timer1);
2437	qemu_put_8s (f, &s->precomp_trk);
2438	qemu_put_8s (f, &s->config);
2439	qemu_put_8s (f, &s->lock);
2440	qemu_put_8s (f, &s->pwrd);
2441
2442	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2443	fdrive_t *d = &s->drives[i];
2444
2445	SSMR3PutMem (pSSMHandle, &d->Led, sizeof (d->Led));
2446	qemu_put_be32s (f, &d->drive);
2447	qemu_put_be32s (f, &d->drflags);
2448	qemu_put_8s (f, &d->perpendicular);
2449	qemu_put_8s (f, &d->head);
2450	qemu_put_8s (f, &d->track);
2451	qemu_put_8s (f, &d->sect);
2452	qemu_put_8s (f, &d->dir);
2453	qemu_put_8s (f, &d->rw);
2454	qemu_put_be32s (f, &d->flags);
2455	qemu_put_8s (f, &d->last_sect);
2456	qemu_put_8s (f, &d->max_track);
2457	qemu_put_be16s (f, &d->bps);
2458	qemu_put_8s (f, &d->ro);
2459	}
2460	return TMR3TimerSave (s->result_timer, pSSMHandle);
2461	}
2462
2463	static DECLCALLBACK(int) LoadExec (PPDMDEVINS pDevIns,
2464	PSSMHANDLE pSSMHandle,
2465	uint32_t u32Version)
2466	{
2467	fdctrl_t s = PDMINS2DATA (pDevIns, fdctrl_t );
2468	QEMUFile *f = pSSMHandle;
2469	unsigned int i;
2470
2471	if (u32Version != 1) {
2472	AssertMsgFailed(("u32Version=%d\n", u32Version));
2473	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
2474	}
2475
2476	qemu_get_8s (f, &s->version);
2477	qemu_get_8s (f, &s->irq_lvl);
2478	qemu_get_8s (f, &s->dma_chann);
2479	qemu_get_be32s (f, &s->io_base);
2480	qemu_get_8s (f, &s->state);
2481	qemu_get_8s (f, &s->dma_en);
2482	qemu_get_8s (f, &s->cur_drv);
2483	qemu_get_8s (f, &s->bootsel);
2484	qemu_get_buffer (f, s->fifo, FD_SECTOR_LEN);
2485	qemu_get_be32s (f, &s->data_pos);
2486	qemu_get_be32s (f, &s->data_len);
2487	qemu_get_8s (f, &s->data_state);
2488	qemu_get_8s (f, &s->data_dir);
2489	qemu_get_8s (f, &s->int_status);
2490	qemu_get_8s (f, &s->eot);
2491	qemu_get_8s (f, &s->timer0);
2492	qemu_get_8s (f, &s->timer1);
2493	qemu_get_8s (f, &s->precomp_trk);
2494	qemu_get_8s (f, &s->config);
2495	qemu_get_8s (f, &s->lock);
2496	qemu_get_8s (f, &s->pwrd);
2497
2498	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2499	fdrive_t *d = &s->drives[i];
2500
2501	SSMR3GetMem (pSSMHandle, &d->Led, sizeof (d->Led));
2502	qemu_get_be32s (f, &d->drive);
2503	qemu_get_be32s (f, &d->drflags);
2504	qemu_get_8s (f, &d->perpendicular);
2505	qemu_get_8s (f, &d->head);
2506	qemu_get_8s (f, &d->track);
2507	qemu_get_8s (f, &d->sect);
2508	qemu_get_8s (f, &d->dir);
2509	qemu_get_8s (f, &d->rw);
2510	qemu_get_be32s (f, &d->flags);
2511	qemu_get_8s (f, &d->last_sect);
2512	qemu_get_8s (f, &d->max_track);
2513	qemu_get_be16s (f, &d->bps);
2514	qemu_get_8s (f, &d->ro);
2515	}
2516	return TMR3TimerLoad (s->result_timer, pSSMHandle);
2517	}
2518
2519	/**
2520	* Queries an interface to the driver.
2521	*
2522	* @returns Pointer to interface.
2523	* @returns NULL if the interface was not supported by the device.
2524	* @param pInterface Pointer to IDEState::IBase.
2525	* @param enmInterface The requested interface identification.
2526	*/
2527	static DECLCALLBACK(void *) fdQueryInterface (PPDMIBASE pInterface,
2528	PDMINTERFACE enmInterface)
2529	{
2530	fdrive_t *drv = PDMIBASE_2_FDRIVE(pInterface);
2531	switch (enmInterface) {
2532	case PDMINTERFACE_BASE:
2533	return &drv->IBase;
2534	case PDMINTERFACE_BLOCK_PORT:
2535	return &drv->IPort;
2536	case PDMINTERFACE_MOUNT_NOTIFY:
2537	return &drv->IMountNotify;
2538	default:
2539	return NULL;
2540	}
2541	}
2542
2543	/**
2544	* Gets the pointer to the status LED of a unit.
2545	*
2546	* @returns VBox status code.
2547	* @param pInterface Pointer to the interface structure containing the called function pointer.
2548	* @param iLUN The unit which status LED we desire.
2549	* @param ppLed Where to store the LED pointer.
2550	*/
2551	static DECLCALLBACK(int) fdcStatusQueryStatusLed (PPDMILEDPORTS pInterface,
2552	unsigned iLUN,
2553	PPDMLED *ppLed)
2554	{
2555	fdctrl_t fdctrl = (fdctrl_t )
2556	((uintptr_t )pInterface - RT_OFFSETOF (fdctrl_t, ILeds));
2557	if (iLUN < ELEMENTS(fdctrl->drives)) {
2558	*ppLed = &fdctrl->drives[iLUN].Led;
2559	Assert ((*ppLed)->u32Magic == PDMLED_MAGIC);
2560	return VINF_SUCCESS;
2561	}
2562	return VERR_PDM_LUN_NOT_FOUND;
2563	}
2564
2565
2566	/**
2567	* Queries an interface to the status LUN.
2568	*
2569	* @returns Pointer to interface.
2570	* @returns NULL if the interface was not supported by the device.
2571	* @param pInterface Pointer to IDEState::IBase.
2572	* @param enmInterface The requested interface identification.
2573	*/
2574	static DECLCALLBACK(void *) fdcStatusQueryInterface (PPDMIBASE pInterface,
2575	PDMINTERFACE enmInterface)
2576	{
2577	fdctrl_t fdctrl = (fdctrl_t )
2578	((uintptr_t)pInterface - RT_OFFSETOF (fdctrl_t, IBaseStatus));
2579	switch (enmInterface) {
2580	case PDMINTERFACE_BASE:
2581	return &fdctrl->IBaseStatus;
2582	case PDMINTERFACE_LED_PORTS:
2583	return &fdctrl->ILeds;
2584	default:
2585	return NULL;
2586	}
2587	}
2588
2589
2590	/**
2591	* Configure a drive.
2592	*
2593	* @returns VBox status code.
2594	* @param drv The drive in question.
2595	* @param pDevIns The driver instance.
2596	*/
2597	static int fdConfig (fdrive_t *drv, PPDMDEVINS pDevIns)
2598	{
2599	static const char *descs[] = {"Floppy Drive A:", "Floppy Drive B"};
2600	int rc;
2601
2602	/*
2603	* Reset the LED just to be on the safe side.
2604	*/
2605	Assert (ELEMENTS(descs) > drv->iLUN);
2606	Assert (drv->Led.u32Magic == PDMLED_MAGIC);
2607	drv->Led.Actual.u32 = 0;
2608	drv->Led.Asserted.u32 = 0;
2609
2610	/*
2611	* Try attach the block device and get the interfaces.
2612	*/
2613	rc = PDMDevHlpDriverAttach (pDevIns, drv->iLUN, &drv->IBase, &drv->pDrvBase, descs[drv->iLUN]);
2614	if (VBOX_SUCCESS (rc))
2615	{
2616	drv->pDrvBlock = drv->pDrvBase->pfnQueryInterface (
2617	drv->pDrvBase,
2618	PDMINTERFACE_BLOCK
2619	);
2620	if (drv->pDrvBlock) {
2621	drv->pDrvBlockBios = drv->pDrvBase->pfnQueryInterface (
2622	drv->pDrvBase,
2623	PDMINTERFACE_BLOCK_BIOS
2624	);
2625	if (drv->pDrvBlockBios) {
2626	drv->pDrvMount = drv->pDrvBase->pfnQueryInterface (
2627	drv->pDrvBase,
2628	PDMINTERFACE_MOUNT
2629	);
2630	if (drv->pDrvMount) {
2631	/*
2632	* Init the state.
2633	*/
2634	drv->drive = FDRIVE_DRV_NONE;
2635	drv->drflags = 0;
2636	drv->perpendicular = 0;
2637	/* Disk */
2638	drv->last_sect = 0;
2639	drv->max_track = 0;
2640	drv->fMediaPresent = false;
2641	}
2642	else {
2643	AssertMsgFailed (("Configuration error: LUN#%d without mountable interface!\n", drv->iLUN));
2644	rc = VERR_PDM_MISSING_INTERFACE;
2645	}
2646
2647	}
2648	else {
2649	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block BIOS interface!\n", drv->iLUN));
2650	rc = VERR_PDM_MISSING_INTERFACE;
2651	}
2652
2653	}
2654	else {
2655	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block interface!\n", drv->iLUN));
2656	rc = VERR_PDM_MISSING_INTERFACE;
2657	}
2658	}
2659	else {
2660	AssertMsg (rc == VERR_PDM_NO_ATTACHED_DRIVER,
2661	("Failed to attach LUN#%d. rc=%Vrc\n", drv->iLUN, rc));
2662	}
2663
2664	if (VBOX_FAILURE (rc)) {
2665	drv->pDrvBase = NULL;
2666	drv->pDrvBlock = NULL;
2667	drv->pDrvBlockBios = NULL;
2668	drv->pDrvMount = NULL;
2669	}
2670	LogFlow (("fdConfig: returns %Vrc\n", rc));
2671	return rc;
2672	}
2673
2674
2675	/**
2676	* Attach command.
2677	*
2678	* This is called when we change block driver for a floppy drive.
2679	*
2680	* @returns VBox status code.
2681	* @param pDevIns The device instance.
2682	* @param iLUN The logical unit which is being detached.
2683	*/
2684	static DECLCALLBACK(int) fdcAttach (PPDMDEVINS pDevIns,
2685	unsigned iLUN)
2686	{
2687	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2688	fdrive_t *drv;
2689	int rc;
2690	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2691
2692	/*
2693	* Validate.
2694	*/
2695	if (iLUN > 2) {
2696	AssertMsgFailed (("Configuration error: cannot attach or detach any but the first two LUNs - iLUN=%u\n",
2697	iLUN));
2698	return VERR_PDM_DEVINS_NO_ATTACH;
2699	}
2700
2701	/*
2702	* Locate the drive and stuff.
2703	*/
2704	drv = &fdctrl->drives[iLUN];
2705
2706	/* the usual paranoia */
2707	AssertRelease (!drv->pDrvBase);
2708	AssertRelease (!drv->pDrvBlock);
2709	AssertRelease (!drv->pDrvBlockBios);
2710	AssertRelease (!drv->pDrvMount);
2711
2712	rc = fdConfig (drv, pDevIns);
2713	AssertMsg (rc != VERR_PDM_NO_ATTACHED_DRIVER,
2714	("Configuration error: failed to configure drive %d, rc=%Vrc\n", rc));
2715	if (VBOX_SUCCESS(rc)) {
2716	fd_revalidate (drv);
2717	}
2718
2719	LogFlow (("floppyAttach: returns %Vrc\n", rc));
2720	return rc;
2721	}
2722
2723
2724	/**
2725	* Detach notification.
2726	*
2727	* The floppy drive has been temporarily 'unplugged'.
2728	*
2729	* @param pDevIns The device instance.
2730	* @param iLUN The logical unit which is being detached.
2731	*/
2732	static DECLCALLBACK(void) fdcDetach (PPDMDEVINS pDevIns,
2733	unsigned iLUN)
2734	{
2735	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2736	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2737
2738	switch (iLUN) {
2739	case 0:
2740	case 1: {
2741	fdrive_t *drv = &fdctrl->drives[iLUN];
2742	drv->pDrvBase = NULL;
2743	drv->pDrvBlock = NULL;
2744	drv->pDrvBlockBios = NULL;
2745	drv->pDrvMount = NULL;
2746	break;
2747	}
2748
2749	default:
2750	AssertMsgFailed (("Cannot detach LUN#%d!\n", iLUN));
2751	break;
2752	}
2753	}
2754
2755
2756	/**
2757	* Handle reset.
2758	*
2759	* I haven't check the specs on what's supposed to happen on reset, but we
2760	* should get any 'FATAL: floppy recal:f07 ctrl not ready' when resetting
2761	* at wrong time like we do if this was all void.
2762	*
2763	* @param pDevIns The device instance.
2764	*/
2765	static DECLCALLBACK(void) fdcReset (PPDMDEVINS pDevIns)
2766	{
2767	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2768	int i;
2769	LogFlow (("fdcReset:\n"));
2770
2771	fdctrl_reset(fdctrl, 0);
2772	fdctrl->state = FD_CTRL_ACTIVE;
2773
2774	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2775	fd_revalidate(&fdctrl->drives[i]);
2776	}
2777	}
2778
2779
2780	/**
2781	* Construct a device instance for a VM.
2782	*
2783	* @returns VBox status.
2784	* @param pDevIns The device instance data.
2785	* If the registration structure is needed, pDevIns->pDevReg points to it.
2786	* @param iInstance Instance number. Use this to figure out which registers and such to use.
2787	* The device number is also found in pDevIns->iInstance, but since it's
2788	* likely to be freqently used PDM passes it as parameter.
2789	* @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
2790	* of the device instance. It's also found in pDevIns->pCfgHandle, but like
2791	* iInstance it's expected to be used a bit in this function.
2792	*/
2793	static DECLCALLBACK(int) fdcConstruct (PPDMDEVINS pDevIns,
2794	int iInstance,
2795	PCFGMNODE pCfgHandle)
2796	{
2797	int rc;
2798	fdctrl_t fdctrl = PDMINS2DATA(pDevIns, fdctrl_t);
2799	int i;
2800	bool mem_mapped;
2801	uint16_t io_base;
2802	uint8_t irq_lvl, dma_chann;
2803	PPDMIBASE pBase;
2804
2805	Assert(iInstance == 0);
2806
2807	/*
2808	* Validate configuration.
2809	*/
2810	if (!CFGMR3AreValuesValid(pCfgHandle, "IRQ\0DMA\0MemMapped\0IOBase\0")) {
2811	return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
2812	}
2813
2814	/*
2815	* Read the configuration.
2816	*/
2817	rc = CFGMR3QueryU8 (pCfgHandle, "IRQ", &irq_lvl);
2818	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2819	irq_lvl = 6;
2820	}
2821	else if (VBOX_FAILURE (rc)) {
2822	AssertMsgFailed (("Configuration error: Failed to read U8 IRQ, rc=%Vrc\n", rc));
2823	return rc;
2824	}
2825
2826	rc = CFGMR3QueryU8 (pCfgHandle, "DMA", &dma_chann);
2827	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2828	dma_chann = 2;
2829	}
2830	else if (VBOX_FAILURE (rc)) {
2831	AssertMsgFailed (("Configuration error: Failed to read U8 DMA, rc=%Vrc\n", rc));
2832	return rc;
2833	}
2834
2835	rc = CFGMR3QueryU16 (pCfgHandle, "IOBase", &io_base);
2836	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2837	io_base = 0x3f0;
2838	}
2839	else if (VBOX_FAILURE (rc)) {
2840	AssertMsgFailed (("Configuration error: Failed to read U16 IOBase, rc=%Vrc\n", rc));
2841	return rc;
2842	}
2843
2844	rc = CFGMR3QueryBool (pCfgHandle, "MemMapped", &mem_mapped);
2845	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2846	mem_mapped = false;
2847	}
2848	else if (VBOX_FAILURE (rc)) {
2849	AssertMsgFailed (("Configuration error: Failed to read bool value MemMapped rc=%Vrc\n", rc));
2850	return rc;
2851	}
2852
2853	/*
2854	* Initialize data.
2855	*/
2856	LogFlow(("fdcConstruct: irq_lvl=%d dma_chann=%d io_base=%#x\n", irq_lvl, dma_chann, io_base));
2857	fdctrl->pDevIns = pDevIns;
2858	fdctrl->version = 0x90; /* Intel 82078 controller */
2859	fdctrl->irq_lvl = irq_lvl;
2860	fdctrl->dma_chann = dma_chann;
2861	fdctrl->io_base = io_base;
2862	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
2863
2864	fdctrl->IBaseStatus.pfnQueryInterface = fdcStatusQueryInterface;
2865	fdctrl->ILeds.pfnQueryStatusLed = fdcStatusQueryStatusLed;
2866
2867	for (i = 0; i < ELEMENTS(fdctrl->drives); ++i) {
2868	fdrive_t *drv = &fdctrl->drives[i];
2869
2870	drv->drive = FDRIVE_DRV_NONE;
2871	drv->iLUN = i;
2872
2873	drv->IBase.pfnQueryInterface = fdQueryInterface;
2874	drv->IMountNotify.pfnMountNotify = fdMountNotify;
2875	drv->IMountNotify.pfnUnmountNotify = fdUnmountNotify;
2876	drv->Led.u32Magic = PDMLED_MAGIC;
2877	}
2878
2879	/*
2880	* Create the FDC timer.
2881	*/
2882	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, fdc_timer, "FDC Timer", &fdctrl->result_timer);
2883	if (VBOX_FAILURE (rc)) {
2884	return rc;
2885	}
2886
2887	/*
2888	* Register DMA channel.
2889	*/
2890	if (fdctrl->dma_chann != 0xff) {
2891	fdctrl->dma_en = 1;
2892	rc = pDevIns->pDevHlp->pfnDMARegister (
2893	pDevIns,
2894	dma_chann,
2895	&fdctrl_transfer_handler,
2896	fdctrl);
2897	if (VBOX_FAILURE (rc)) {
2898	return rc;
2899	}
2900	} else {
2901	fdctrl->dma_en = 0;
2902	}
2903
2904	/*
2905	* IO / MMIO.
2906	*/
2907	if (mem_mapped) {
2908	AssertMsgFailed (("Memory mapped floppy not support by now\n"));
2909	return VERR_NOT_SUPPORTED;
2910	#if 0
2911	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
2912	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
2913	cpu_register_physical_memory(base, 0x08, io_mem);
2914	#endif
2915	} else {
2916	rc = pDevIns->pDevHlp->pfnIOPortRegister (
2917	pDevIns,
2918	io_base + 0x1,
2919	5,
2920	fdctrl,
2921	fdc_io_write,
2922	fdc_io_read,
2923	NULL, NULL,
2924	"FDC#1"
2925	);
2926	if (VBOX_FAILURE (rc)) {
2927	return rc;
2928	}
2929
2930	rc = pDevIns->pDevHlp->pfnIOPortRegister (
2931	pDevIns,
2932	io_base + 0x7,
2933	1,
2934	fdctrl,
2935	fdc_io_write,
2936	fdc_io_read,
2937	NULL, NULL,
2938	"FDC#2"
2939	);
2940	if (VBOX_FAILURE (rc)) {
2941	return rc;
2942	}
2943	}
2944
2945	/*
2946	* Register the saved state data unit.
2947	*/
2948	rc = pDevIns->pDevHlp->pfnSSMRegister (
2949	pDevIns, /* pDevIns */
2950	pDevIns->pDevReg->szDeviceName, /* pszName */
2951	iInstance, /* u32Instance */
2952	1 /* u32Version */,
2953	sizeof (fdctrl), / cbGuess */
2954	NULL, /* pfnSavePrep */
2955	SaveExec, /* pfnSaveExec */
2956	NULL, /* pfnSaveDone */
2957	NULL, /* pfnLoadPrep */
2958	LoadExec, /* pfnLoadExec */
2959	NULL /* pfnLoadDone */
2960	);
2961	if (VBOX_FAILURE(rc))
2962	return rc;
2963
2964	/*
2965	* Attach the status port (optional).
2966	*/
2967	rc = PDMDevHlpDriverAttach (pDevIns, PDM_STATUS_LUN, &fdctrl->IBaseStatus, &pBase, "Status Port");
2968	if (VBOX_SUCCESS (rc)) {
2969	fdctrl->pLedsConnector =
2970	pBase->pfnQueryInterface (pBase, PDMINTERFACE_LED_CONNECTORS);
2971	}
2972	else if (rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2973	AssertMsgFailed (("Failed to attach to status driver. rc=%Vrc\n",
2974	rc));
2975	return rc;
2976	}
2977
2978	/*
2979	* Initialize drives.
2980	*/
2981	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2982	fdrive_t *drv = &fdctrl->drives[i];
2983	rc = fdConfig (drv, pDevIns);
2984	if ( VBOX_FAILURE (rc)
2985	&& rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2986	AssertMsgFailed (("Configuration error: failed to configure drive %d, rc=%Vrc\n", rc));
2987	return rc;
2988	}
2989	}
2990
2991	fdctrl_reset(fdctrl, 0);
2992	fdctrl->state = FD_CTRL_ACTIVE;
2993
2994	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2995	fd_revalidate(&fdctrl->drives[i]);
2996	}
2997
2998	return VINF_SUCCESS;
2999	}
3000
3001	/**
3002	* The device registration structure.
3003	*/
3004	const PDMDEVREG g_DeviceFloppyController =
3005	{
3006	/* u32Version */
3007	PDM_DEVREG_VERSION,
3008	/* szDeviceName */
3009	"i82078",
3010	/* szGCMod */
3011	"",
3012	/* szR0Mod */
3013	"",
3014	/* pszDescription */
3015	"Floppy drive controller (Intel 82078)",
3016	/* fFlags */
3017	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_DEFAULT,
3018	/* fClass */
3019	PDM_DEVREG_CLASS_STORAGE,
3020	/* cMaxInstances */
3021	1,
3022	/* cbInstance */
3023	sizeof(fdctrl_t),
3024	/* pfnConstruct */
3025	fdcConstruct,
3026	/* pfnDestruct */
3027	NULL,
3028	/* pfnRelocate */
3029	NULL,
3030	/* pfnIOCtl */
3031	NULL,
3032	/* pfnPowerOn */
3033	NULL,
3034	/* pfnReset */
3035	fdcReset,
3036	/* pfnSuspend */
3037	NULL,
3038	/* pfnResume */
3039	NULL,
3040	/* pfnAttach */
3041	fdcAttach,
3042	/* pfnDetach */
3043	fdcDetach,
3044	/* pfnQueryInterface. */
3045	NULL
3046	};
3047
3048	#endif /* VBOX */
3049
3050	/*
3051	* Local Variables:
3052	* mode: c
3053	* c-file-style: "k&r"
3054	* indent-tabs-mode: nil
3055	* End:
3056	*/
3057

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source: vbox/trunk/src/VBox/Devices/Storage/fdc.c@ 4014

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