fdc.c@ 4849

Last change on this file since 4849 was 4787, checked in by vboxsync, 17 years ago
Eliminated HCPTRTYPE and replaced with R3R0PTRTYPE where necessary.
Property svn:eol-style set to `native`
File size: 96.8 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	*
20	* This code is based on:
21	*
22	* QEMU Floppy disk emulator (Intel 82078)
23	*
24	* Copyright (c) 2003 Jocelyn Mayer
25	*
26	* Permission is hereby granted, free of charge, to any person obtaining a copy
27	* of this software and associated documentation files (the "Software"), to deal
28	* in the Software without restriction, including without limitation the rights
29	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
30	* copies of the Software, and to permit persons to whom the Software is
31	* furnished to do so, subject to the following conditions:
32	*
33	* The above copyright notice and this permission notice shall be included in
34	* all copies or substantial portions of the Software.
35	*
36	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
37	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
38	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
39	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
40	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
41	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
42	* THE SOFTWARE.
43	*
44	*/
45
46
47	/*******************************************************************************
48	* Header Files *
49	*******************************************************************************/
50	#define LOG_GROUP LOG_GROUP_DEV_FDC
51	#include <VBox/pdmdev.h>
52	#include <iprt/assert.h>
53	#include <iprt/uuid.h>
54	#include <iprt/string.h>
55
56	#include "Builtins.h"
57	#include "../vl_vbox.h"
58
59	#define MAX_FD 2
60
61	#define PDMIBASE_2_FDRIVE(pInterface) \
62	((fdrive_t *)((uintptr_t)(pInterface) - RT_OFFSETOF(fdrive_t, IBase)))
63
64	#define PDMIMOUNTNOTIFY_2_FDRIVE(p) \
65	((fdrive_t *)((uintptr_t)(p) - RT_OFFSETOF(fdrive_t, IMountNotify)))
66
67	#endif /* VBOX */
68
69	#ifndef VBOX
70	#include "vl.h"
71	#endif /* !VBOX */
72
73	/********************************************************/
74	/* debug Floppy devices */
75	/* #define DEBUG_FLOPPY */
76
77	#ifndef VBOX
78	#ifdef DEBUG_FLOPPY
79	#define FLOPPY_DPRINTF(fmt, args...) \
80	do { printf("FLOPPY: " fmt , ##args); } while (0)
81	#endif
82	#else /* !VBOX */
83	# ifdef LOG_ENABLED
84	static void FLOPPY_DPRINTF (const char *fmt, ...)
85	{
86	if (LogIsEnabled ()) {
87	va_list args;
88	va_start (args, fmt);
89	RTLogLogger (NULL, NULL, "floppy: %N", fmt, &args); /* %N - nested va_list * type formatting call. */
90	va_end (args);
91	}
92	}
93	# else
94	DECLINLINE(void) FLOPPY_DPRINTF(const char *pszFmt, ...) {}
95	# endif
96	#endif /* !VBOX */
97
98	#ifndef VBOX
99	#define FLOPPY_ERROR(fmt, args...) \
100	do { printf("FLOPPY ERROR: %s: " fmt, __func__ , ##args); } while (0)
101	#else /* VBOX */
102	# define FLOPPY_ERROR RTLogPrintf
103	#endif /* VBOX */
104
105	#ifdef VBOX
106	typedef struct fdctrl_t fdctrl_t;
107	#endif /* VBOX */
108
109	/********************************************************/
110	/* Floppy drive emulation */
111
112	/* Will always be a fixed parameter for us */
113	#define FD_SECTOR_LEN 512
114	#define FD_SECTOR_SC 2 /* Sector size code */
115
116	/* Floppy disk drive emulation */
117	typedef enum fdisk_type_t {
118	FDRIVE_DISK_288 = 0x01, /* 2.88 MB disk */
119	FDRIVE_DISK_144 = 0x02, /* 1.44 MB disk */
120	FDRIVE_DISK_720 = 0x03, /* 720 kB disk */
121	FDRIVE_DISK_USER = 0x04, /* User defined geometry */
122	FDRIVE_DISK_NONE = 0x05 /* No disk */
123	} fdisk_type_t;
124
125	typedef enum fdrive_type_t {
126	FDRIVE_DRV_144 = 0x00, /* 1.44 MB 3"5 drive */
127	FDRIVE_DRV_288 = 0x01, /* 2.88 MB 3"5 drive */
128	FDRIVE_DRV_120 = 0x02, /* 1.2 MB 5"25 drive */
129	FDRIVE_DRV_NONE = 0x03 /* No drive connected */
130	} fdrive_type_t;
131
132	typedef enum fdrive_flags_t {
133	FDRIVE_MOTOR_ON = 0x01, /* motor on/off */
134	FDRIVE_REVALIDATE = 0x02 /* Revalidated */
135	} fdrive_flags_t;
136
137	typedef enum fdisk_flags_t {
138	FDISK_DBL_SIDES = 0x01
139	} fdisk_flags_t;
140
141	typedef struct fdrive_t {
142	#ifndef VBOX
143	BlockDriverState *bs;
144	#else /* VBOX */
145	/** Pointer to the attached driver's base interface. */
146	R3PTRTYPE(PPDMIBASE) pDrvBase;
147	/** Pointer to the attached driver's block interface. */
148	R3PTRTYPE(PPDMIBLOCK) pDrvBlock;
149	/** Pointer to the attached driver's block bios interface. */
150	R3PTRTYPE(PPDMIBLOCKBIOS) pDrvBlockBios;
151	/** Pointer to the attached driver's mount interface.
152	* This is NULL if the driver isn't a removable unit. */
153	R3PTRTYPE(PPDMIMOUNT) pDrvMount;
154	/** The base interface. */
155	PDMIBASE IBase;
156	/** The block port interface. */
157	PDMIBLOCKPORT IPort;
158	/** The mount notify interface. */
159	PDMIMOUNTNOTIFY IMountNotify;
160	/** The LUN #. */
161	RTUINT iLUN;
162	/** The LED for this LUN. */
163	PDMLED Led;
164	/** The Diskette present/missing flag. */
165	bool fMediaPresent;
166	#endif
167	/* Drive status */
168	fdrive_type_t drive;
169	fdrive_flags_t drflags;
170	uint8_t perpendicular; /* 2.88 MB access mode */
171	/* Position */
172	uint8_t head;
173	uint8_t track;
174	uint8_t sect;
175	/* Last operation status */
176	uint8_t dir; /* Direction */
177	uint8_t rw; /* Read/write */
178	/* Media */
179	fdisk_flags_t flags;
180	uint8_t last_sect; /* Nb sector per track */
181	uint8_t max_track; /* Nb of tracks */
182	uint16_t bps; /* Bytes per sector */
183	uint8_t ro; /* Is read-only */
184	} fdrive_t;
185
186	#ifndef VBOX
187	static void fd_init (fdrive_t drv, BlockDriverState bs)
188	{
189	/* Drive */
190	drv->bs = bs;
191	drv->drive = FDRIVE_DRV_NONE;
192	drv->drflags = 0;
193	drv->perpendicular = 0;
194	/* Disk */
195	drv->last_sect = 0;
196	drv->max_track = 0;
197	}
198	#endif
199
200	static int _fd_sector (uint8_t head, uint8_t track,
201	uint8_t sect, uint8_t last_sect)
202	{
203	return (((track * 2) + head) * last_sect) + sect - 1;
204	}
205
206	/* Returns current position, in sectors, for given drive */
207	static int fd_sector (fdrive_t *drv)
208	{
209	return _fd_sector(drv->head, drv->track, drv->sect, drv->last_sect);
210	}
211
212	static int fd_seek (fdrive_t *drv, uint8_t head, uint8_t track, uint8_t sect,
213	int enable_seek)
214	{
215	uint32_t sector;
216	int ret;
217
218	if (track > drv->max_track \|\|
219	(head != 0 && (drv->flags & FDISK_DBL_SIDES) == 0)) {
220	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
221	head, track, sect, 1,
222	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
223	drv->max_track, drv->last_sect);
224	return 2;
225	}
226	if (sect > drv->last_sect) {
227	FLOPPY_DPRINTF("try to read %d %02x %02x (max=%d %d %02x %02x)\n",
228	head, track, sect, 1,
229	(drv->flags & FDISK_DBL_SIDES) == 0 ? 0 : 1,
230	drv->max_track, drv->last_sect);
231	return 3;
232	}
233	sector = _fd_sector(head, track, sect, drv->last_sect);
234	ret = 0;
235	if (sector != fd_sector(drv)) {
236	#if 0
237	if (!enable_seek) {
238	FLOPPY_ERROR("no implicit seek %d %02x %02x (max=%d %02x %02x)\n",
239	head, track, sect, 1, drv->max_track, drv->last_sect);
240	return 4;
241	}
242	#endif
243	drv->head = head;
244	if (drv->track != track)
245	ret = 1;
246	drv->track = track;
247	drv->sect = sect;
248	}
249
250	return ret;
251	}
252
253	/* Set drive back to track 0 */
254	static void fd_recalibrate (fdrive_t *drv)
255	{
256	FLOPPY_DPRINTF("recalibrate\n");
257	drv->head = 0;
258	drv->track = 0;
259	drv->sect = 1;
260	drv->dir = 1;
261	drv->rw = 0;
262	}
263
264	/* Recognize floppy formats */
265	typedef struct fd_format_t {
266	fdrive_type_t drive;
267	fdisk_type_t disk;
268	uint8_t last_sect;
269	uint8_t max_track;
270	uint8_t max_head;
271	const char *str;
272	} fd_format_t;
273
274	static fd_format_t fd_formats[] = {
275	/* First entry is default format */
276	/* 1.44 MB 3"1/2 floppy disks */
277	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 18, 80, 1, "1.44 MB 3\"1/2", },
278	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 20, 80, 1, "1.6 MB 3\"1/2", },
279	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 80, 1, "1.68 MB 3\"1/2", },
280	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 82, 1, "1.72 MB 3\"1/2", },
281	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 21, 83, 1, "1.74 MB 3\"1/2", },
282	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 22, 80, 1, "1.76 MB 3\"1/2", },
283	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 23, 80, 1, "1.84 MB 3\"1/2", },
284	{ FDRIVE_DRV_144, FDRIVE_DISK_144, 24, 80, 1, "1.92 MB 3\"1/2", },
285	/* 2.88 MB 3"1/2 floppy disks */
286	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 36, 80, 1, "2.88 MB 3\"1/2", },
287	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 39, 80, 1, "3.12 MB 3\"1/2", },
288	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 40, 80, 1, "3.2 MB 3\"1/2", },
289	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 44, 80, 1, "3.52 MB 3\"1/2", },
290	{ FDRIVE_DRV_288, FDRIVE_DISK_288, 48, 80, 1, "3.84 MB 3\"1/2", },
291	/* 720 kB 3"1/2 floppy disks */
292	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 1, "720 kB 3\"1/2", },
293	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 80, 1, "800 kB 3\"1/2", },
294	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 82, 1, "820 kB 3\"1/2", },
295	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 10, 83, 1, "830 kB 3\"1/2", },
296	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 13, 80, 1, "1.04 MB 3\"1/2", },
297	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 14, 80, 1, "1.12 MB 3\"1/2", },
298	/* 1.2 MB 5"1/4 floppy disks */
299	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 15, 80, 1, "1.2 kB 5\"1/4", },
300	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 80, 1, "1.44 MB 5\"1/4", },
301	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 82, 1, "1.48 MB 5\"1/4", },
302	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 18, 83, 1, "1.49 MB 5\"1/4", },
303	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 20, 80, 1, "1.6 MB 5\"1/4", },
304	/* 720 kB 5"1/4 floppy disks */
305	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 80, 1, "720 kB 5\"1/4", },
306	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 11, 80, 1, "880 kB 5\"1/4", },
307	/* 360 kB 5"1/4 floppy disks */
308	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 1, "360 kB 5\"1/4", },
309	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 9, 40, 0, "180 kB 5\"1/4", },
310	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 41, 1, "410 kB 5\"1/4", },
311	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 10, 42, 1, "420 kB 5\"1/4", },
312	/* 320 kB 5"1/4 floppy disks */
313	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 1, "320 kB 5\"1/4", },
314	{ FDRIVE_DRV_120, FDRIVE_DISK_288, 8, 40, 0, "160 kB 5\"1/4", },
315	/* 360 kB must match 5"1/4 better than 3"1/2... */
316	{ FDRIVE_DRV_144, FDRIVE_DISK_720, 9, 80, 0, "360 kB 3\"1/2", },
317	/* end */
318	{ FDRIVE_DRV_NONE, FDRIVE_DISK_NONE, -1, -1, 0, NULL, },
319	};
320
321	/* Revalidate a disk drive after a disk change */
322	static void fd_revalidate (fdrive_t *drv)
323	{
324	fd_format_t *parse;
325	int64_t nb_sectors, size;
326	int i, first_match, match;
327	int nb_heads, max_track, last_sect, ro;
328
329	FLOPPY_DPRINTF("revalidate\n");
330	drv->drflags &= ~FDRIVE_REVALIDATE;
331	#ifndef VBOX
332	if (drv->bs != NULL && bdrv_is_inserted(drv->bs)) {
333	ro = bdrv_is_read_only(drv->bs);
334	bdrv_get_geometry_hint(drv->bs, &nb_heads, &max_track, &last_sect);
335	#else /* VBOX */
336	/** @todo / /* @todo r=bird: todo what exactly? */
337	if (drv->pDrvBlock
338	&& drv->pDrvMount
339	&& drv->pDrvMount->pfnIsMounted (drv->pDrvMount)) {
340	ro = drv->pDrvBlock->pfnIsReadOnly (drv->pDrvBlock);
341	nb_heads = 0;
342	max_track = 0;
343	last_sect = 0;
344	#endif /* VBOX */
345	if (nb_heads != 0 && max_track != 0 && last_sect != 0) {
346	FLOPPY_DPRINTF("User defined disk (%d %d %d)",
347	nb_heads - 1, max_track, last_sect);
348	} else {
349	#ifndef VBOX
350	bdrv_get_geometry(drv->bs, &nb_sectors);
351	#else /* VBOX */
352	/* @todo / /* @todo r=bird: todo what exactly?!?!? */
353	{
354	uint64_t size = drv->pDrvBlock->pfnGetSize (drv->pDrvBlock);
355	nb_sectors = size / 512;
356	}
357	#endif /* VBOX */
358	match = -1;
359	first_match = -1;
360	for (i = 0;; i++) {
361	parse = &fd_formats[i];
362	if (parse->drive == FDRIVE_DRV_NONE)
363	break;
364	if (drv->drive == parse->drive \|\|
365	drv->drive == FDRIVE_DRV_NONE) {
366	size = (parse->max_head + 1) * parse->max_track *
367	parse->last_sect;
368	if (nb_sectors == size) {
369	match = i;
370	break;
371	}
372	if (first_match == -1)
373	first_match = i;
374	}
375	}
376	if (match == -1) {
377	if (first_match == -1)
378	match = 1;
379	else
380	match = first_match;
381	parse = &fd_formats[match];
382	}
383	nb_heads = parse->max_head + 1;
384	max_track = parse->max_track;
385	last_sect = parse->last_sect;
386	drv->drive = parse->drive;
387	FLOPPY_DPRINTF("%s floppy disk (%d h %d t %d s) %s\n", parse->str,
388	nb_heads, max_track, last_sect, ro ? "ro" : "rw");
389	}
390	if (nb_heads == 1) {
391	drv->flags &= ~FDISK_DBL_SIDES;
392	} else {
393	drv->flags \|= FDISK_DBL_SIDES;
394	}
395	drv->max_track = max_track;
396	drv->last_sect = last_sect;
397	drv->ro = ro;
398	#ifdef VBOX
399	drv->fMediaPresent = true;
400	#endif
401	} else {
402	FLOPPY_DPRINTF("No disk in drive\n");
403	drv->last_sect = 0;
404	drv->max_track = 0;
405	drv->flags &= ~FDISK_DBL_SIDES;
406	#ifdef VBOX
407	drv->fMediaPresent = false;
408	#endif
409	}
410	drv->drflags \|= FDRIVE_REVALIDATE;
411	}
412
413	/* Motor control */
414	static void fd_start (fdrive_t *drv)
415	{
416	drv->drflags \|= FDRIVE_MOTOR_ON;
417	}
418
419	static void fd_stop (fdrive_t *drv)
420	{
421	drv->drflags &= ~FDRIVE_MOTOR_ON;
422	}
423
424	/* Re-initialise a drives (motor off, repositioned) */
425	static void fd_reset (fdrive_t *drv)
426	{
427	fd_stop(drv);
428	fd_recalibrate(drv);
429	}
430
431	/********************************************************/
432	/* Intel 82078 floppy disk controller emulation */
433
434	#define target_ulong uint32_t
435	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq);
436	static void fdctrl_reset_fifo (fdctrl_t *fdctrl);
437	#ifndef VBOX
438	static int fdctrl_transfer_handler (void *opaque, int nchan, int dma_pos, int dma_len);
439	#else /* VBOX: */
440	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
441	void *opaque,
442	unsigned nchan,
443	uint32_t dma_pos,
444	uint32_t dma_len);
445	#endif /* VBOX */
446	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status);
447	static void fdctrl_result_timer(void *opaque);
448
449	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl);
450	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl);
451	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value);
452	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl);
453	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value);
454	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl);
455	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value);
456	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl);
457	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value);
458	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl);
459
460	enum {
461	FD_CTRL_ACTIVE = 0x01, /* XXX: suppress that */
462	FD_CTRL_RESET = 0x02,
463	FD_CTRL_SLEEP = 0x04, /* XXX: suppress that */
464	FD_CTRL_BUSY = 0x08, /* dma transfer in progress */
465	FD_CTRL_INTR = 0x10
466	};
467
468	enum {
469	FD_DIR_WRITE = 0,
470	FD_DIR_READ = 1,
471	FD_DIR_SCANE = 2,
472	FD_DIR_SCANL = 3,
473	FD_DIR_SCANH = 4
474	};
475
476	enum {
477	FD_STATE_CMD = 0x00,
478	FD_STATE_STATUS = 0x01,
479	FD_STATE_DATA = 0x02,
480	FD_STATE_STATE = 0x03,
481	FD_STATE_MULTI = 0x10,
482	FD_STATE_SEEK = 0x20,
483	FD_STATE_FORMAT = 0x40
484	};
485
486	#define FD_STATE(state) ((state) & FD_STATE_STATE)
487	#define FD_SET_STATE(state, new_state) \
488	do { (state) = ((state) & ~FD_STATE_STATE) \| (new_state); } while (0)
489	#define FD_MULTI_TRACK(state) ((state) & FD_STATE_MULTI)
490	#define FD_DID_SEEK(state) ((state) & FD_STATE_SEEK)
491	#define FD_FORMAT_CMD(state) ((state) & FD_STATE_FORMAT)
492
493	struct fdctrl_t {
494	#ifndef VBOX
495	fdctrl_t *fdctrl;
496	#endif
497	/* Controller's identification */
498	uint8_t version;
499	/* HW */
500	#ifndef VBOX
501	int irq_lvl;
502	int dma_chann;
503	#else
504	uint8_t irq_lvl;
505	uint8_t dma_chann;
506	#endif
507	uint32_t io_base;
508	/* Controller state */
509	QEMUTimer *result_timer;
510	uint8_t state;
511	uint8_t dma_en;
512	uint8_t cur_drv;
513	uint8_t bootsel;
514	/* Command FIFO */
515	uint8_t fifo[FD_SECTOR_LEN];
516	uint32_t data_pos;
517	uint32_t data_len;
518	uint8_t data_state;
519	uint8_t data_dir;
520	uint8_t int_status;
521	uint8_t eot; /* last wanted sector */
522	/* States kept only to be returned back */
523	/* Timers state */
524	uint8_t timer0;
525	uint8_t timer1;
526	/* precompensation */
527	uint8_t precomp_trk;
528	uint8_t config;
529	uint8_t lock;
530	/* Power down config (also with status regB access mode */
531	uint8_t pwrd;
532	/* Floppy drives */
533	fdrive_t drives[2];
534	#ifdef VBOX
535	/** Pointer to device instance. */
536	PPDMDEVINS pDevIns;
537
538	/** Status Port - The base interface. */
539	PDMIBASE IBaseStatus;
540	/** Status Port - The Leds interface. */
541	PDMILEDPORTS ILeds;
542	/** Status Port - The Partner of ILeds. */
543	PPDMILEDCONNECTORS pLedsConnector;
544	#endif
545	};
546
547	static uint32_t fdctrl_read (void *opaque, uint32_t reg)
548	{
549	fdctrl_t *fdctrl = opaque;
550	uint32_t retval;
551
552	switch (reg & 0x07) {
553	case 0x01:
554	retval = fdctrl_read_statusB(fdctrl);
555	break;
556	case 0x02:
557	retval = fdctrl_read_dor(fdctrl);
558	break;
559	case 0x03:
560	retval = fdctrl_read_tape(fdctrl);
561	break;
562	case 0x04:
563	retval = fdctrl_read_main_status(fdctrl);
564	break;
565	case 0x05:
566	retval = fdctrl_read_data(fdctrl);
567	break;
568	case 0x07:
569	retval = fdctrl_read_dir(fdctrl);
570	break;
571	default:
572	retval = (uint32_t)(-1);
573	break;
574	}
575	FLOPPY_DPRINTF("read reg%d: 0x%02x\n", reg & 7, retval);
576
577	return retval;
578	}
579
580	static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value)
581	{
582	fdctrl_t *fdctrl = opaque;
583
584	FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
585
586	switch (reg & 0x07) {
587	case 0x02:
588	fdctrl_write_dor(fdctrl, value);
589	break;
590	case 0x03:
591	fdctrl_write_tape(fdctrl, value);
592	break;
593	case 0x04:
594	fdctrl_write_rate(fdctrl, value);
595	break;
596	case 0x05:
597	fdctrl_write_data(fdctrl, value);
598	break;
599	default:
600	break;
601	}
602	}
603
604	#ifndef VBOX
605	static void fd_change_cb (void *opaque)
606	{
607	fdrive_t *drv = opaque;
608
609	FLOPPY_DPRINTF("disk change\n");
610	fd_revalidate(drv);
611	#if 0
612	fd_recalibrate(drv);
613	fdctrl_reset_fifo(drv->fdctrl);
614	fdctrl_raise_irq(drv->fdctrl, 0x20);
615	#endif
616	}
617
618	#else /* VBOX */
619	/**
620	* Called when a media is mounted.
621	*
622	* @param pInterface Pointer to the interface structure
623	* containing the called function pointer.
624	*/
625	static DECLCALLBACK(void) fdMountNotify(PPDMIMOUNTNOTIFY pInterface)
626	{
627	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
628	LogFlow(("fdMountNotify:\n"));
629	fd_revalidate (drv);
630	}
631
632	/**
633	* Called when a media is unmounted
634	* @param pInterface Pointer to the interface structure containing the called function pointer.
635	*/
636	static DECLCALLBACK(void) fdUnmountNotify(PPDMIMOUNTNOTIFY pInterface)
637	{
638	fdrive_t *drv = PDMIMOUNTNOTIFY_2_FDRIVE (pInterface);
639	LogFlow(("fdUnmountNotify:\n"));
640	fd_revalidate (drv);
641	}
642	#endif
643
644	#ifndef VBOX
645	fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped,
646	uint32_t io_base,
647	BlockDriverState **fds)
648	{
649	fdctrl_t *fdctrl;
650	/* // int io_mem; */
651	int i;
652
653	FLOPPY_DPRINTF("init controller\n");
654	fdctrl = qemu_mallocz(sizeof(fdctrl_t));
655	if (!fdctrl)
656	return NULL;
657	fdctrl->result_timer = qemu_new_timer(vm_clock,
658	fdctrl_result_timer, fdctrl);
659
660	fdctrl->version = 0x90; /* Intel 82078 controller */
661	fdctrl->irq_lvl = irq_lvl;
662	fdctrl->dma_chann = dma_chann;
663	fdctrl->io_base = io_base;
664	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
665	if (fdctrl->dma_chann != -1) {
666	fdctrl->dma_en = 1;
667	DMA_register_channel(dma_chann, &fdctrl_transfer_handler, fdctrl);
668	} else {
669	fdctrl->dma_en = 0;
670	}
671	for (i = 0; i < 2; i++) {
672	fd_init(&fdctrl->drives[i], fds[i]);
673	if (fds[i]) {
674	bdrv_set_change_cb(fds[i],
675	&fd_change_cb, &fdctrl->drives[i]);
676	}
677	}
678	fdctrl_reset(fdctrl, 0);
679	fdctrl->state = FD_CTRL_ACTIVE;
680	if (mem_mapped) {
681	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
682	#if 0
683	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
684	cpu_register_physical_memory(base, 0x08, io_mem);
685	#endif
686	} else {
687	register_ioport_read(io_base + 0x01, 5, 1, &fdctrl_read, fdctrl);
688	register_ioport_read(io_base + 0x07, 1, 1, &fdctrl_read, fdctrl);
689	register_ioport_write(io_base + 0x01, 5, 1, &fdctrl_write, fdctrl);
690	register_ioport_write(io_base + 0x07, 1, 1, &fdctrl_write, fdctrl);
691	}
692	for (i = 0; i < 2; i++) {
693	fd_revalidate(&fdctrl->drives[i]);
694	}
695
696	return fdctrl;
697	}
698
699	/* XXX: may change if moved to bdrv */
700	int fdctrl_get_drive_type(fdctrl_t *fdctrl, int drive_num)
701	{
702	return fdctrl->drives[drive_num].drive;
703	}
704	#endif
705
706	/* Change IRQ state */
707	static void fdctrl_reset_irq (fdctrl_t *fdctrl)
708	{
709	FLOPPY_DPRINTF("Reset interrupt\n");
710	#ifdef VBOX
711	fdctrl->pDevIns->pDevHlp->pfnISASetIrq (fdctrl->pDevIns,
712	fdctrl->irq_lvl, 0);
713	#else
714	pic_set_irq(fdctrl->irq_lvl, 0);
715	#endif
716	fdctrl->state &= ~FD_CTRL_INTR;
717	}
718
719	static void fdctrl_raise_irq (fdctrl_t *fdctrl, uint8_t status)
720	{
721	if (~(fdctrl->state & FD_CTRL_INTR)) {
722	#ifdef VBOX
723	fdctrl->pDevIns->pDevHlp->pfnISASetIrq (fdctrl->pDevIns,
724	fdctrl->irq_lvl, 1);
725	#else
726	pic_set_irq(fdctrl->irq_lvl, 1);
727	#endif
728	fdctrl->state \|= FD_CTRL_INTR;
729	}
730	FLOPPY_DPRINTF("Set interrupt status to 0x%02x\n", status);
731	fdctrl->int_status = status;
732	}
733
734	/* Reset controller */
735	static void fdctrl_reset (fdctrl_t *fdctrl, int do_irq)
736	{
737	int i;
738
739	FLOPPY_DPRINTF("reset controller\n");
740	fdctrl_reset_irq(fdctrl);
741	/* Initialise controller */
742	fdctrl->cur_drv = 0;
743	/* FIFO state */
744	fdctrl->data_pos = 0;
745	fdctrl->data_len = 0;
746	fdctrl->data_state = FD_STATE_CMD;
747	fdctrl->data_dir = FD_DIR_WRITE;
748	for (i = 0; i < MAX_FD; i++)
749	fd_reset(&fdctrl->drives[i]);
750	fdctrl_reset_fifo(fdctrl);
751	if (do_irq)
752	fdctrl_raise_irq(fdctrl, 0xc0);
753	}
754
755	static inline fdrive_t drv0 (fdctrl_t fdctrl)
756	{
757	return &fdctrl->drives[fdctrl->bootsel];
758	}
759
760	static inline fdrive_t drv1 (fdctrl_t fdctrl)
761	{
762	return &fdctrl->drives[1 - fdctrl->bootsel];
763	}
764
765	static fdrive_t get_cur_drv (fdctrl_t fdctrl)
766	{
767	return fdctrl->cur_drv == 0 ? drv0(fdctrl) : drv1(fdctrl);
768	}
769
770	/* Status B register : 0x01 (read-only) */
771	static uint32_t fdctrl_read_statusB (fdctrl_t *fdctrl)
772	{
773	FLOPPY_DPRINTF("status register: 0x00\n");
774	return 0;
775	}
776
777	/* Digital output register : 0x02 */
778	static uint32_t fdctrl_read_dor (fdctrl_t *fdctrl)
779	{
780	uint32_t retval = 0;
781
782	/* Drive motors state indicators */
783	#ifndef VBOX
784	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
785	retval \|= 1 << 5;
786	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
787	retval \|= 1 << 4;
788	#else
789	/* bit4: 0 = drive 0 motor off/1 = on */
790	if (drv0(fdctrl)->drflags & FDRIVE_MOTOR_ON)
791	retval \|= BIT(4);
792	/* bit5: 0 = drive 1 motor off/1 = on */
793	if (drv1(fdctrl)->drflags & FDRIVE_MOTOR_ON)
794	retval \|= BIT(5);
795	#endif
796	/* DMA enable */
797	retval \|= fdctrl->dma_en << 3;
798	/* Reset indicator */
799	retval \|= (fdctrl->state & FD_CTRL_RESET) == 0 ? 0x04 : 0;
800	/* Selected drive */
801	retval \|= fdctrl->cur_drv;
802	FLOPPY_DPRINTF("digital output register: 0x%02x\n", retval);
803
804	return retval;
805	}
806
807	static void fdctrl_write_dor (fdctrl_t *fdctrl, uint32_t value)
808	{
809	/* Reset mode */
810	if (fdctrl->state & FD_CTRL_RESET) {
811	if (!(value & 0x04)) {
812	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
813	return;
814	}
815	}
816	FLOPPY_DPRINTF("digital output register set to 0x%02x\n", value);
817	/* Drive motors state indicators */
818	if (value & 0x20)
819	fd_start(drv1(fdctrl));
820	else
821	fd_stop(drv1(fdctrl));
822	if (value & 0x10)
823	fd_start(drv0(fdctrl));
824	else
825	fd_stop(drv0(fdctrl));
826	/* DMA enable */
827	#if 0
828	if (fdctrl->dma_chann != -1)
829	fdctrl->dma_en = 1 - ((value >> 3) & 1);
830	#endif
831	/* Reset */
832	if (!(value & 0x04)) {
833	if (!(fdctrl->state & FD_CTRL_RESET)) {
834	FLOPPY_DPRINTF("controller enter RESET state\n");
835	fdctrl->state \|= FD_CTRL_RESET;
836	}
837	} else {
838	if (fdctrl->state & FD_CTRL_RESET) {
839	FLOPPY_DPRINTF("controller out of RESET state\n");
840	fdctrl_reset(fdctrl, 1);
841	fdctrl->state &= ~(FD_CTRL_RESET \| FD_CTRL_SLEEP);
842	}
843	}
844	/* Selected drive */
845	fdctrl->cur_drv = value & 1;
846	}
847
848	/* Tape drive register : 0x03 */
849	static uint32_t fdctrl_read_tape (fdctrl_t *fdctrl)
850	{
851	uint32_t retval = 0;
852
853	/* Disk boot selection indicator */
854	retval \|= fdctrl->bootsel << 2;
855	/* Tape indicators: never allowed */
856	FLOPPY_DPRINTF("tape drive register: 0x%02x\n", retval);
857
858	return retval;
859	}
860
861	static void fdctrl_write_tape (fdctrl_t *fdctrl, uint32_t value)
862	{
863	/* Reset mode */
864	if (fdctrl->state & FD_CTRL_RESET) {
865	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
866	return;
867	}
868	FLOPPY_DPRINTF("tape drive register set to 0x%02x\n", value);
869	/* Disk boot selection indicator */
870	fdctrl->bootsel = (value >> 2) & 1;
871	/* Tape indicators: never allow */
872	}
873
874	/* Main status register : 0x04 (read) */
875	static uint32_t fdctrl_read_main_status (fdctrl_t *fdctrl)
876	{
877	uint32_t retval = 0;
878
879	fdctrl->state &= ~(FD_CTRL_SLEEP \| FD_CTRL_RESET);
880	if (!(fdctrl->state & FD_CTRL_BUSY)) {
881	/* Data transfer allowed */
882	retval \|= 0x80;
883	/* Data transfer direction indicator */
884	if (fdctrl->data_dir == FD_DIR_READ)
885	retval \|= 0x40;
886	}
887	/* Should handle 0x20 for SPECIFY command */
888	/* Command busy indicator */
889	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA \|\|
890	FD_STATE(fdctrl->data_state) == FD_STATE_STATUS)
891	retval \|= 0x10;
892	FLOPPY_DPRINTF("main status register: 0x%02x\n", retval);
893
894	return retval;
895	}
896
897	/* Data select rate register : 0x04 (write) */
898	static void fdctrl_write_rate (fdctrl_t *fdctrl, uint32_t value)
899	{
900	/* Reset mode */
901	if (fdctrl->state & FD_CTRL_RESET) {
902	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
903	return;
904	}
905	FLOPPY_DPRINTF("select rate register set to 0x%02x\n", value);
906	/* Reset: autoclear */
907	if (value & 0x80) {
908	fdctrl->state \|= FD_CTRL_RESET;
909	fdctrl_reset(fdctrl, 1);
910	fdctrl->state &= ~FD_CTRL_RESET;
911	}
912	if (value & 0x40) {
913	fdctrl->state \|= FD_CTRL_SLEEP;
914	fdctrl_reset(fdctrl, 1);
915	}
916	/* // fdctrl.precomp = (value >> 2) & 0x07; */
917	}
918
919	/* Digital input register : 0x07 (read-only) */
920	static uint32_t fdctrl_read_dir (fdctrl_t *fdctrl)
921	{
922	uint32_t retval = 0;
923
924	#ifndef VBOX
925	if (drv0(fdctrl)->drflags & FDRIVE_REVALIDATE \|\|
926	drv1(fdctrl)->drflags & FDRIVE_REVALIDATE)
927	#else
928	fdrive_t *cur_drv = get_cur_drv(fdctrl);
929	if ( drv0(fdctrl)->drflags & FDRIVE_REVALIDATE
930	\|\| drv1(fdctrl)->drflags & FDRIVE_REVALIDATE
931	\|\| !cur_drv->fMediaPresent)
932	#endif
933	retval \|= 0x80;
934	if (retval != 0)
935	FLOPPY_DPRINTF("Floppy digital input register: 0x%02x\n", retval);
936	drv0(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
937	drv1(fdctrl)->drflags &= ~FDRIVE_REVALIDATE;
938
939	return retval;
940	}
941
942	/* FIFO state control */
943	static void fdctrl_reset_fifo (fdctrl_t *fdctrl)
944	{
945	fdctrl->data_dir = FD_DIR_WRITE;
946	fdctrl->data_pos = 0;
947	FD_SET_STATE(fdctrl->data_state, FD_STATE_CMD);
948	}
949
950	/* Set FIFO status for the host to read */
951	static void fdctrl_set_fifo (fdctrl_t *fdctrl, int fifo_len, int do_irq)
952	{
953	fdctrl->data_dir = FD_DIR_READ;
954	fdctrl->data_len = fifo_len;
955	fdctrl->data_pos = 0;
956	FD_SET_STATE(fdctrl->data_state, FD_STATE_STATUS);
957	if (do_irq)
958	fdctrl_raise_irq(fdctrl, 0x00);
959	}
960
961	/* Set an error: unimplemented/unknown command */
962	static void fdctrl_unimplemented (fdctrl_t *fdctrl)
963	{
964	#if 0
965	fdrive_t *cur_drv;
966
967	cur_drv = get_cur_drv(fdctrl);
968	fdctrl->fifo[0] = 0x60 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
969	fdctrl->fifo[1] = 0x00;
970	fdctrl->fifo[2] = 0x00;
971	fdctrl_set_fifo(fdctrl, 3, 1);
972	#else
973	/* // fdctrl_reset_fifo(fdctrl); */
974	fdctrl->fifo[0] = 0x80;
975	fdctrl_set_fifo(fdctrl, 1, 0);
976	#endif
977	}
978
979	/* Callback for transfer end (stop or abort) */
980	static void fdctrl_stop_transfer (fdctrl_t *fdctrl, uint8_t status0,
981	uint8_t status1, uint8_t status2)
982	{
983	fdrive_t *cur_drv;
984
985	cur_drv = get_cur_drv(fdctrl);
986	FLOPPY_DPRINTF("transfer status: %02x %02x %02x (%02x)\n",
987	status0, status1, status2,
988	status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv);
989	fdctrl->fifo[0] = status0 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
990	fdctrl->fifo[1] = status1;
991	fdctrl->fifo[2] = status2;
992	fdctrl->fifo[3] = cur_drv->track;
993	fdctrl->fifo[4] = cur_drv->head;
994	fdctrl->fifo[5] = cur_drv->sect;
995	fdctrl->fifo[6] = FD_SECTOR_SC;
996	fdctrl->data_dir = FD_DIR_READ;
997	if (fdctrl->state & FD_CTRL_BUSY) {
998	#ifdef VBOX
999	fdctrl->pDevIns->pDevHlp->pfnDMASetDREQ (fdctrl->pDevIns,
1000	fdctrl->dma_chann,
1001	0);
1002	#else
1003	DMA_release_DREQ(fdctrl->dma_chann);
1004	#endif
1005	fdctrl->state &= ~FD_CTRL_BUSY;
1006	}
1007	fdctrl_set_fifo(fdctrl, 7, 1);
1008	}
1009
1010	/* Prepare a data transfer (either DMA or FIFO) */
1011	static void fdctrl_start_transfer (fdctrl_t *fdctrl, int direction)
1012	{
1013	fdrive_t *cur_drv;
1014	uint8_t kh, kt, ks;
1015	int did_seek;
1016
1017	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1018	cur_drv = get_cur_drv(fdctrl);
1019	kt = fdctrl->fifo[2];
1020	kh = fdctrl->fifo[3];
1021	ks = fdctrl->fifo[4];
1022	FLOPPY_DPRINTF("Start transfer at %d %d %02x %02x (%d)\n",
1023	fdctrl->cur_drv, kh, kt, ks,
1024	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1025	did_seek = 0;
1026	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1027	case 2:
1028	/* sect too big */
1029	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1030	fdctrl->fifo[3] = kt;
1031	fdctrl->fifo[4] = kh;
1032	fdctrl->fifo[5] = ks;
1033	return;
1034	case 3:
1035	/* track too big */
1036	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1037	fdctrl->fifo[3] = kt;
1038	fdctrl->fifo[4] = kh;
1039	fdctrl->fifo[5] = ks;
1040	return;
1041	case 4:
1042	/* No seek enabled */
1043	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1044	fdctrl->fifo[3] = kt;
1045	fdctrl->fifo[4] = kh;
1046	fdctrl->fifo[5] = ks;
1047	return;
1048	case 1:
1049	did_seek = 1;
1050	break;
1051	default:
1052	break;
1053	}
1054	/* Set the FIFO state */
1055	fdctrl->data_dir = direction;
1056	fdctrl->data_pos = 0;
1057	FD_SET_STATE(fdctrl->data_state, FD_STATE_DATA); /* FIFO ready for data */
1058	if (fdctrl->fifo[0] & 0x80)
1059	fdctrl->data_state \|= FD_STATE_MULTI;
1060	else
1061	fdctrl->data_state &= ~FD_STATE_MULTI;
1062	if (did_seek)
1063	fdctrl->data_state \|= FD_STATE_SEEK;
1064	else
1065	fdctrl->data_state &= ~FD_STATE_SEEK;
1066	if (fdctrl->fifo[5] == 00) {
1067	fdctrl->data_len = fdctrl->fifo[8];
1068	} else {
1069	int tmp;
1070	fdctrl->data_len = 128 << fdctrl->fifo[5];
1071	tmp = (cur_drv->last_sect - ks + 1);
1072	if (fdctrl->fifo[0] & 0x80)
1073	tmp += cur_drv->last_sect;
1074	fdctrl->data_len *= tmp;
1075	}
1076	fdctrl->eot = fdctrl->fifo[6];
1077	if (fdctrl->dma_en) {
1078	int dma_mode;
1079	/* DMA transfer are enabled. Check if DMA channel is well programmed */
1080	#ifndef VBOX
1081	dma_mode = DMA_get_channel_mode(fdctrl->dma_chann);
1082	#else
1083	dma_mode = fdctrl->pDevIns->pDevHlp->pfnDMAGetChannelMode (
1084	fdctrl->pDevIns,
1085	fdctrl->dma_chann
1086	);
1087	#endif
1088	dma_mode = (dma_mode >> 2) & 3;
1089	FLOPPY_DPRINTF("dma_mode=%d direction=%d (%d - %d)\n",
1090	dma_mode, direction,
1091	(128 << fdctrl->fifo[5]) *
1092	(cur_drv->last_sect - ks + 1), fdctrl->data_len);
1093	if (((direction == FD_DIR_SCANE \|\| direction == FD_DIR_SCANL \|\|
1094	direction == FD_DIR_SCANH) && dma_mode == 0) \|\|
1095	(direction == FD_DIR_WRITE && dma_mode == 2) \|\|
1096	(direction == FD_DIR_READ && dma_mode == 1)) {
1097	/* No access is allowed until DMA transfer has completed */
1098	fdctrl->state \|= FD_CTRL_BUSY;
1099	/* Now, we just have to wait for the DMA controller to
1100	* recall us...
1101	*/
1102	#ifndef VBOX
1103	DMA_hold_DREQ(fdctrl->dma_chann);
1104	DMA_schedule(fdctrl->dma_chann);
1105	#else
1106	fdctrl->pDevIns->pDevHlp->pfnDMASetDREQ (fdctrl->pDevIns,
1107	fdctrl->dma_chann,
1108	1);
1109	fdctrl->pDevIns->pDevHlp->pfnDMASchedule (fdctrl->pDevIns);
1110	#endif
1111	return;
1112	} else {
1113	FLOPPY_ERROR("dma_mode=%d direction=%d\n", dma_mode, direction);
1114	}
1115	}
1116	FLOPPY_DPRINTF("start non-DMA transfer\n");
1117	/* IO based transfer: calculate len */
1118	fdctrl_raise_irq(fdctrl, 0x00);
1119
1120	return;
1121	}
1122
1123	/* Prepare a transfer of deleted data */
1124	static void fdctrl_start_transfer_del (fdctrl_t *fdctrl, int direction)
1125	{
1126	/* We don't handle deleted data,
1127	* so we don't return ANYTHING
1128	*/
1129	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1130	}
1131
1132	#if 0
1133	#include <stdio.h>
1134	#include <stdlib.h>
1135
1136	static FILE * f;
1137	static void dump (void *p, size_t len)
1138	{
1139	size_t n;
1140
1141	if (!f) {
1142	f = fopen ("dump", "wb");
1143	if (!f)
1144	exit (0);
1145	}
1146
1147	n = fwrite (p, len, 1, f);
1148	if (n != 1) {
1149	AssertMsgFailed (("failed to dump\n"));
1150	exit (0);
1151	}
1152	}
1153	#else
1154	#define dump(a,b) do { } while (0)
1155	#endif
1156
1157	/* handlers for DMA transfers */
1158	#ifdef VBOX
1159	static DECLCALLBACK(uint32_t) fdctrl_transfer_handler (PPDMDEVINS pDevIns,
1160	void *opaque,
1161	unsigned nchan,
1162	uint32_t dma_pos,
1163	uint32_t dma_len)
1164	#else
1165	static int fdctrl_transfer_handler (void *opaque, int nchan,
1166	int dma_pos, int dma_len)
1167	#endif
1168	{
1169	fdctrl_t *fdctrl;
1170	fdrive_t *cur_drv;
1171	#ifdef VBOX
1172	int rc;
1173	uint32_t len, start_pos, rel_pos;
1174	#else
1175	int len, start_pos, rel_pos;
1176	#endif
1177	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1178
1179	fdctrl = opaque;
1180	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1181	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1182	return 0;
1183	}
1184	cur_drv = get_cur_drv(fdctrl);
1185	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1186	fdctrl->data_dir == FD_DIR_SCANH)
1187	status2 = 0x04;
1188	if (dma_len > fdctrl->data_len)
1189	dma_len = fdctrl->data_len;
1190	#ifndef VBOX
1191	if (cur_drv->bs == NULL) {
1192	#else /* !VBOX */
1193	if (cur_drv->pDrvBlock == NULL) {
1194	#endif
1195	if (fdctrl->data_dir == FD_DIR_WRITE)
1196	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1197	else
1198	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1199	len = 0;
1200	goto transfer_error;
1201	}
1202	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1203	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < dma_len;) {
1204	len = dma_len - fdctrl->data_pos;
1205	if (len + rel_pos > FD_SECTOR_LEN)
1206	len = FD_SECTOR_LEN - rel_pos;
1207	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x "
1208	"(%d-0x%08x 0x%08x)\n", len, dma_len, fdctrl->data_pos,
1209	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1210	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1211	fd_sector(cur_drv) * 512);
1212	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1213	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1214	/* READ & SCAN commands and realign to a sector for WRITE */
1215	#ifndef VBOX
1216	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1217	fdctrl->fifo, 1) < 0) {
1218	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1219	fd_sector(cur_drv));
1220	/* Sure, image size is too small... */
1221	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1222	}
1223	#else
1224	cur_drv->Led.Asserted.s.fReading
1225	= cur_drv->Led.Actual.s.fReading = 1;
1226
1227	rc = cur_drv->pDrvBlock->pfnRead (
1228	cur_drv->pDrvBlock,
1229	fd_sector (cur_drv) * 512,
1230	fdctrl->fifo,
1231	1 * 512
1232	);
1233
1234	cur_drv->Led.Actual.s.fReading = 0;
1235
1236	if (VBOX_FAILURE (rc)) {
1237	AssertMsgFailed (
1238	("Floppy: error getting sector %d, rc = %Vrc",
1239	fd_sector (cur_drv), rc));
1240	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1241	}
1242	#endif
1243	}
1244	switch (fdctrl->data_dir) {
1245	case FD_DIR_READ:
1246	/* READ commands */
1247	#ifdef VBOX
1248	{
1249	uint32_t read;
1250	int rc = fdctrl->pDevIns->pDevHlp->pfnDMAWriteMemory(
1251	fdctrl->pDevIns,
1252	nchan,
1253	fdctrl->fifo + rel_pos,
1254	fdctrl->data_pos,
1255	len,
1256	&read);
1257	dump (fdctrl->fifo + rel_pos, len);
1258	AssertMsgRC (rc,
1259	("DMAWriteMemory -> %Vrc\n", rc));
1260	}
1261	#else
1262	DMA_write_memory (nchan, fdctrl->fifo + rel_pos,
1263	fdctrl->data_pos, len);
1264	#endif
1265	/* cpu_physical_memory_write(addr + fdctrl->data_pos, */
1266	/* fdctrl->fifo + rel_pos, len); */
1267	break;
1268	case FD_DIR_WRITE:
1269	/* WRITE commands */
1270	#ifdef VBOX
1271	{
1272	uint32_t written;
1273	int rc = fdctrl->pDevIns->pDevHlp->pfnDMAReadMemory(
1274	fdctrl->pDevIns,
1275	nchan,
1276	fdctrl->fifo + rel_pos,
1277	fdctrl->data_pos,
1278	len,
1279	&written);
1280	AssertMsgRC (rc,
1281	("DMAReadMemory -> %Vrc\n", rc));
1282	}
1283	#else
1284	DMA_read_memory (nchan, fdctrl->fifo + rel_pos,
1285	fdctrl->data_pos, len);
1286	#endif
1287	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1288	/* fdctrl->fifo + rel_pos, len); */
1289	#ifndef VBOX
1290	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1291	fdctrl->fifo, 1) < 0) {
1292	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1293	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1294	goto transfer_error;
1295	}
1296	#else /* VBOX */
1297	cur_drv->Led.Asserted.s.fWriting
1298	= cur_drv->Led.Actual.s.fWriting = 1;
1299
1300	rc = cur_drv->pDrvBlock->pfnWrite (
1301	cur_drv->pDrvBlock,
1302	fd_sector (cur_drv) * 512,
1303	fdctrl->fifo,
1304	1 * 512
1305	);
1306
1307	cur_drv->Led.Actual.s.fWriting = 0;
1308
1309	if (VBOX_FAILURE (rc)) {
1310	AssertMsgFailed (("Floppy: error writing sector %d. rc=%Vrc",
1311	fd_sector (cur_drv), rc));
1312	fdctrl_stop_transfer (fdctrl, 0x60, 0x00, 0x00);
1313	goto transfer_error;
1314	}
1315	#endif
1316	break;
1317	default:
1318	/* SCAN commands */
1319	{
1320	uint8_t tmpbuf[FD_SECTOR_LEN];
1321	int ret;
1322	#ifdef VBOX
1323	int rc;
1324	uint32_t read;
1325
1326	rc = fdctrl->pDevIns->pDevHlp->pfnDMAReadMemory (
1327	fdctrl->pDevIns,
1328	nchan,
1329	tmpbuf,
1330	fdctrl->data_pos,
1331	len,
1332	&read);
1333	AssertMsg (VBOX_SUCCESS (rc),
1334	("DMAReadMemory -> %Vrc\n", rc));
1335	#else
1336	DMA_read_memory (nchan, tmpbuf, fdctrl->data_pos, len);
1337	#endif
1338	/* cpu_physical_memory_read(addr + fdctrl->data_pos, */
1339	/* tmpbuf, len); */
1340	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1341	if (ret == 0) {
1342	status2 = 0x08;
1343	goto end_transfer;
1344	}
1345	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1346	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1347	status2 = 0x00;
1348	goto end_transfer;
1349	}
1350	}
1351	break;
1352	}
1353	fdctrl->data_pos += len;
1354	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1355	if (rel_pos == 0) {
1356	/* Seek to next sector */
1357	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1358	cur_drv->head, cur_drv->track, cur_drv->sect,
1359	fd_sector(cur_drv),
1360	fdctrl->data_pos - len);
1361	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1362	error in fact */
1363	if (cur_drv->sect >= cur_drv->last_sect \|\|
1364	cur_drv->sect == fdctrl->eot) {
1365	cur_drv->sect = 1;
1366	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1367	if (cur_drv->head == 0 &&
1368	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1369	cur_drv->head = 1;
1370	} else {
1371	cur_drv->head = 0;
1372	cur_drv->track++;
1373	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1374	break;
1375	}
1376	} else {
1377	cur_drv->track++;
1378	break;
1379	}
1380	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1381	cur_drv->head, cur_drv->track,
1382	cur_drv->sect, fd_sector(cur_drv));
1383	} else {
1384	cur_drv->sect++;
1385	}
1386	}
1387	}
1388	end_transfer:
1389	len = fdctrl->data_pos - start_pos;
1390	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1391	fdctrl->data_pos, len, fdctrl->data_len);
1392	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1393	fdctrl->data_dir == FD_DIR_SCANL \|\|
1394	fdctrl->data_dir == FD_DIR_SCANH)
1395	status2 = 0x08;
1396	if (FD_DID_SEEK(fdctrl->data_state))
1397	status0 \|= 0x20;
1398	fdctrl->data_len -= len;
1399	/* if (fdctrl->data_len == 0) */
1400	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1401	transfer_error:
1402
1403	return len;
1404	}
1405
1406	#if 0
1407	{
1408	fdctrl_t *fdctrl;
1409	fdrive_t *cur_drv;
1410	int len, start_pos, rel_pos;
1411	uint8_t status0 = 0x00, status1 = 0x00, status2 = 0x00;
1412
1413	fdctrl = opaque;
1414	if (!(fdctrl->state & FD_CTRL_BUSY)) {
1415	FLOPPY_DPRINTF("Not in DMA transfer mode !\n");
1416	return 0;
1417	}
1418	cur_drv = get_cur_drv(fdctrl);
1419	if (fdctrl->data_dir == FD_DIR_SCANE \|\| fdctrl->data_dir == FD_DIR_SCANL \|\|
1420	fdctrl->data_dir == FD_DIR_SCANH)
1421	status2 = 0x04;
1422	if (size > fdctrl->data_len)
1423	size = fdctrl->data_len;
1424	#ifndef VBOX
1425	if (cur_drv->bs == NULL) {
1426	#else
1427	if (cur_drv->pDrvBase == NULL) {
1428	#endif
1429	if (fdctrl->data_dir == FD_DIR_WRITE)
1430	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1431	else
1432	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1433	len = 0;
1434	goto transfer_error;
1435	}
1436	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1437	for (start_pos = fdctrl->data_pos; fdctrl->data_pos < size;) {
1438	len = size - fdctrl->data_pos;
1439	if (len + rel_pos > FD_SECTOR_LEN)
1440	len = FD_SECTOR_LEN - rel_pos;
1441	FLOPPY_DPRINTF("copy %d bytes (%d %d %d) %d pos %d %02x %02x "
1442	"(%d-0x%08x 0x%08x)\n", len, size, fdctrl->data_pos,
1443	fdctrl->data_len, fdctrl->cur_drv, cur_drv->head,
1444	cur_drv->track, cur_drv->sect, fd_sector(cur_drv),
1445	fd_sector(cur_drv) * 512, addr);
1446	if (fdctrl->data_dir != FD_DIR_WRITE \|\|
1447	len < FD_SECTOR_LEN \|\| rel_pos != 0) {
1448	/* READ & SCAN commands and realign to a sector for WRITE */
1449	#ifndef VBOX
1450	if (bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1451	fdctrl->fifo, 1) < 0) {
1452	FLOPPY_DPRINTF("Floppy: error getting sector %d\n",
1453	fd_sector(cur_drv));
1454	/* Sure, image size is too small... */
1455	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1456	}
1457	#else
1458	int rc;
1459
1460	cur_drv->Led.Asserted.s.fReading
1461	= cur_drv->Led.Actual.s.fReading = 1;
1462
1463	rc = cur_drv->pDrvBlock->pfnRead (
1464	cur_drv->pDrvBlock,
1465	fd_sector (cur_drv) * 512,
1466	fdctrl->fifo,
1467	1 * 512
1468	);
1469
1470	cur_drv->Led.Actual.s.fReading = 0;
1471
1472	if (VBOX_FAILURE (rc)) {
1473	AssertMsgFailed (
1474	("Floppy: error getting sector %d. rc=%Vrc\n",
1475	fd_sector(cur_drv), rc));
1476	/* Sure, image size is too small... */
1477	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1478	}
1479	/* p_fd_activity = 1; /
1480	#endif
1481	}
1482	switch (fdctrl->data_dir) {
1483	case FD_DIR_READ:
1484	/* READ commands */
1485	#ifdef VBOX
1486	fdctrl->pDevIns->pDevHlp->pfnPhysWrite (
1487	fdctrl->pDevIns,
1488	addr + fdctrl->data_pos,
1489	fdctrl->fifo + rel_pos,
1490	len);
1491	#else
1492	cpu_physical_memory_write(addr + fdctrl->data_pos,
1493	fdctrl->fifo + rel_pos, len);
1494	#endif
1495	break;
1496	case FD_DIR_WRITE:
1497	/* WRITE commands */
1498	#ifdef VBOX
1499	{
1500	int rc;
1501
1502	fdctrl->pDevIns->pDevHlp->pfnPhysRead (
1503	fdctrl->pDevIns,
1504	addr + fdctrl->data_pos,
1505	fdctrl->fifo + rel_pos,
1506	len);
1507
1508	cur_drv->Led.Asserted.s.fWriting
1509	= cur_drv->Led.Actual.s.fWriting = 1;
1510
1511	rc = cur_drv->pDrvBlock->pfnWrite (
1512	cur_drv->pDrvBlock,
1513	fd_sector (cur_drv) * 512,
1514	fdctrl->fifo,
1515	1 * 512
1516	);
1517
1518	cur_drv->Led.Actual.s.fWriting = 0;
1519
1520	if (VBOX_FAILURE (rc)) {
1521	AssertMsgFailed (
1522	("Floppy: error writting sector %d. rc=%Vrc\n",
1523	fd_sector(cur_drv), rc));
1524	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1525	goto transfer_error;
1526	}
1527	}
1528	/* p_fd_activity = 2; /
1529	#else /* !VBOX */
1530	cpu_physical_memory_read(addr + fdctrl->data_pos,
1531	fdctrl->fifo + rel_pos, len);
1532	if (bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1533	fdctrl->fifo, 1) < 0) {
1534	FLOPPY_ERROR("writting sector %d\n", fd_sector(cur_drv));
1535	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1536	goto transfer_error;
1537	}
1538	#endif
1539	break;
1540	default:
1541	/* SCAN commands */
1542	{
1543	uint8_t tmpbuf[FD_SECTOR_LEN];
1544	int ret;
1545	#ifdef VBOX
1546	fdctrl->pDevIns->pDevHlp->pfnPhysRead (
1547	fdctrl->pDevIns,
1548	addr + fdctrl->data_pos,
1549	tmpbuf,
1550	len);
1551	#else
1552	cpu_physical_memory_read(addr + fdctrl->data_pos,
1553	tmpbuf, len);
1554	#endif
1555	ret = memcmp(tmpbuf, fdctrl->fifo + rel_pos, len);
1556	if (ret == 0) {
1557	status2 = 0x08;
1558	goto end_transfer;
1559	}
1560	if ((ret < 0 && fdctrl->data_dir == FD_DIR_SCANL) \|\|
1561	(ret > 0 && fdctrl->data_dir == FD_DIR_SCANH)) {
1562	status2 = 0x00;
1563	goto end_transfer;
1564	}
1565	}
1566	break;
1567	}
1568	fdctrl->data_pos += len;
1569	rel_pos = fdctrl->data_pos % FD_SECTOR_LEN;
1570	if (rel_pos == 0) {
1571	/* Seek to next sector */
1572	FLOPPY_DPRINTF("seek to next sector (%d %02x %02x => %d) (%d)\n",
1573	cur_drv->head, cur_drv->track, cur_drv->sect,
1574	fd_sector(cur_drv),
1575	fdctrl->data_pos - size);
1576	/* XXX: cur_drv->sect >= cur_drv->last_sect should be an
1577	error in fact */
1578	if (cur_drv->sect >= cur_drv->last_sect \|\|
1579	cur_drv->sect == fdctrl->eot) {
1580	cur_drv->sect = 1;
1581	if (FD_MULTI_TRACK(fdctrl->data_state)) {
1582	if (cur_drv->head == 0 &&
1583	(cur_drv->flags & FDISK_DBL_SIDES) != 0) {
1584	cur_drv->head = 1;
1585	} else {
1586	cur_drv->head = 0;
1587	cur_drv->track++;
1588	if ((cur_drv->flags & FDISK_DBL_SIDES) == 0)
1589	break;
1590	}
1591	} else {
1592	cur_drv->track++;
1593	break;
1594	}
1595	FLOPPY_DPRINTF("seek to next track (%d %02x %02x => %d)\n",
1596	cur_drv->head, cur_drv->track,
1597	cur_drv->sect, fd_sector(cur_drv));
1598	} else {
1599	cur_drv->sect++;
1600	}
1601	}
1602	}
1603	end_transfer:
1604	len = fdctrl->data_pos - start_pos;
1605	FLOPPY_DPRINTF("end transfer %d %d %d\n",
1606	fdctrl->data_pos, len, fdctrl->data_len);
1607	if (fdctrl->data_dir == FD_DIR_SCANE \|\|
1608	fdctrl->data_dir == FD_DIR_SCANL \|\|
1609	fdctrl->data_dir == FD_DIR_SCANH)
1610	status2 = 0x08;
1611	if (FD_DID_SEEK(fdctrl->data_state))
1612	status0 \|= 0x20;
1613	fdctrl->data_len -= len;
1614	/* // if (fdctrl->data_len == 0) */
1615	fdctrl_stop_transfer(fdctrl, status0, status1, status2);
1616	transfer_error:
1617
1618	return len;
1619	}
1620	#endif
1621
1622	/* Data register : 0x05 */
1623	static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
1624	{
1625	fdrive_t *cur_drv;
1626	uint32_t retval = 0;
1627	int pos, len;
1628	#ifdef VBOX
1629	int rc;
1630	#endif
1631
1632	cur_drv = get_cur_drv(fdctrl);
1633	fdctrl->state &= ~FD_CTRL_SLEEP;
1634	if (FD_STATE(fdctrl->data_state) == FD_STATE_CMD) {
1635	FLOPPY_ERROR("can't read data in CMD state\n");
1636	return 0;
1637	}
1638	pos = fdctrl->data_pos;
1639	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1640	pos %= FD_SECTOR_LEN;
1641	if (pos == 0) {
1642	len = fdctrl->data_len - fdctrl->data_pos;
1643	if (len > FD_SECTOR_LEN)
1644	len = FD_SECTOR_LEN;
1645	#ifdef VBOX
1646	cur_drv->Led.Asserted.s.fReading
1647	= cur_drv->Led.Actual.s.fReading = 1;
1648
1649	rc = cur_drv->pDrvBlock->pfnRead (
1650	cur_drv->pDrvBlock,
1651	fd_sector (cur_drv) * 512,
1652	fdctrl->fifo,
1653	len * 512
1654	);
1655
1656	cur_drv->Led.Actual.s.fReading = 0;
1657
1658	if (VBOX_FAILURE (rc)) {
1659	AssertMsgFailed (
1660	("Floppy: Failure to read sector %d. rc=%Vrc",
1661	fd_sector (cur_drv), rc));
1662	}
1663	#else
1664	bdrv_read(cur_drv->bs, fd_sector(cur_drv),
1665	fdctrl->fifo, len);
1666	#endif
1667	}
1668	}
1669	retval = fdctrl->fifo[pos];
1670	if (++fdctrl->data_pos == fdctrl->data_len) {
1671	fdctrl->data_pos = 0;
1672	/* Switch from transfer mode to status mode
1673	* then from status mode to command mode
1674	*/
1675	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1676	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1677	} else {
1678	fdctrl_reset_fifo(fdctrl);
1679	fdctrl_reset_irq(fdctrl);
1680	}
1681	}
1682	FLOPPY_DPRINTF("data register: 0x%02x\n", retval);
1683
1684	return retval;
1685	}
1686
1687	static void fdctrl_format_sector (fdctrl_t *fdctrl)
1688	{
1689	fdrive_t *cur_drv;
1690	uint8_t kh, kt, ks;
1691	int did_seek;
1692	#ifdef VBOX
1693	int ok = 0, rc;
1694	#endif
1695
1696	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
1697	cur_drv = get_cur_drv(fdctrl);
1698	kt = fdctrl->fifo[6];
1699	kh = fdctrl->fifo[7];
1700	ks = fdctrl->fifo[8];
1701	FLOPPY_DPRINTF("format sector at %d %d %02x %02x (%d)\n",
1702	fdctrl->cur_drv, kh, kt, ks,
1703	_fd_sector(kh, kt, ks, cur_drv->last_sect));
1704	did_seek = 0;
1705	switch (fd_seek(cur_drv, kh, kt, ks, fdctrl->config & 0x40)) {
1706	case 2:
1707	/* sect too big */
1708	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1709	fdctrl->fifo[3] = kt;
1710	fdctrl->fifo[4] = kh;
1711	fdctrl->fifo[5] = ks;
1712	return;
1713	case 3:
1714	/* track too big */
1715	fdctrl_stop_transfer(fdctrl, 0x40, 0x80, 0x00);
1716	fdctrl->fifo[3] = kt;
1717	fdctrl->fifo[4] = kh;
1718	fdctrl->fifo[5] = ks;
1719	return;
1720	case 4:
1721	/* No seek enabled */
1722	fdctrl_stop_transfer(fdctrl, 0x40, 0x00, 0x00);
1723	fdctrl->fifo[3] = kt;
1724	fdctrl->fifo[4] = kh;
1725	fdctrl->fifo[5] = ks;
1726	return;
1727	case 1:
1728	did_seek = 1;
1729	fdctrl->data_state \|= FD_STATE_SEEK;
1730	break;
1731	default:
1732	break;
1733	}
1734	memset(fdctrl->fifo, 0, FD_SECTOR_LEN);
1735	#ifdef VBOX
1736	/* p_fd_activity = 2; /
1737	if (cur_drv->pDrvBlock) {
1738	cur_drv->Led.Asserted.s.fWriting = cur_drv->Led.Actual.s.fWriting = 1;
1739
1740	rc = cur_drv->pDrvBlock->pfnWrite (
1741	cur_drv->pDrvBlock,
1742	fd_sector (cur_drv) * 512,
1743	fdctrl->fifo,
1744	1 * 512
1745	);
1746
1747	cur_drv->Led.Actual.s.fWriting = 0;
1748
1749	if (VBOX_FAILURE (rc)) {
1750	AssertMsgFailed (("Floppy: error formating sector %d. rc=%Vrc\n",
1751	fd_sector (cur_drv), rc));
1752	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1753	}
1754	else {
1755	ok = 1;
1756	}
1757	}
1758	if (ok) {
1759	#else
1760	if (cur_drv->bs == NULL \|\|
1761	bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1) < 0) {
1762	FLOPPY_ERROR("formating sector %d\n", fd_sector(cur_drv));
1763	fdctrl_stop_transfer(fdctrl, 0x60, 0x00, 0x00);
1764	} else {
1765	#endif
1766	if (cur_drv->sect == cur_drv->last_sect) {
1767	fdctrl->data_state &= ~FD_STATE_FORMAT;
1768	/* Last sector done */
1769	if (FD_DID_SEEK(fdctrl->data_state))
1770	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1771	else
1772	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
1773	} else {
1774	/* More to do */
1775	fdctrl->data_pos = 0;
1776	fdctrl->data_len = 4;
1777	}
1778	}
1779	}
1780
1781	static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
1782	{
1783	fdrive_t *cur_drv;
1784
1785	cur_drv = get_cur_drv(fdctrl);
1786	/* Reset mode */
1787	if (fdctrl->state & FD_CTRL_RESET) {
1788	FLOPPY_DPRINTF("Floppy controller in RESET state !\n");
1789	return;
1790	}
1791	fdctrl->state &= ~FD_CTRL_SLEEP;
1792	if (FD_STATE(fdctrl->data_state) == FD_STATE_STATUS) {
1793	FLOPPY_ERROR("can't write data in status mode\n");
1794	return;
1795	}
1796	/* Is it write command time ? */
1797	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA) {
1798	/* FIFO data write */
1799	fdctrl->fifo[fdctrl->data_pos++] = value;
1800	if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) \|\|
1801	fdctrl->data_pos == fdctrl->data_len) {
1802	#ifdef VBOX
1803	int rc;
1804	/* p_fd_activity = 2; /
1805	cur_drv->Led.Asserted.s.fWriting
1806	= cur_drv->Led.Actual.s.fWriting = 1;
1807
1808	rc = cur_drv->pDrvBlock->pfnWrite (
1809	cur_drv->pDrvBlock,
1810	fd_sector (cur_drv) * 512,
1811	fdctrl->fifo,
1812	FD_SECTOR_LEN * 512
1813	);
1814
1815	cur_drv->Led.Actual.s.fWriting = 0;
1816
1817	if (VBOX_FAILURE (rc)) {
1818	AssertMsgFailed (
1819	("Floppy: failed to write sector %d. rc=%Vrc\n",
1820	fd_sector (cur_drv), rc));
1821	}
1822	#else
1823	bdrv_write(cur_drv->bs, fd_sector(cur_drv),
1824	fdctrl->fifo, FD_SECTOR_LEN);
1825	#endif
1826	}
1827	/* Switch from transfer mode to status mode
1828	* then from status mode to command mode
1829	*/
1830	if (FD_STATE(fdctrl->data_state) == FD_STATE_DATA)
1831	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
1832	return;
1833	}
1834	if (fdctrl->data_pos == 0) {
1835	/* Command */
1836	switch (value & 0x5F) {
1837	case 0x46:
1838	/* READ variants */
1839	FLOPPY_DPRINTF("READ command\n");
1840	/* 8 parameters cmd */
1841	fdctrl->data_len = 9;
1842	goto enqueue;
1843	case 0x4C:
1844	/* READ_DELETED variants */
1845	FLOPPY_DPRINTF("READ_DELETED command\n");
1846	/* 8 parameters cmd */
1847	fdctrl->data_len = 9;
1848	goto enqueue;
1849	case 0x50:
1850	/* SCAN_EQUAL variants */
1851	FLOPPY_DPRINTF("SCAN_EQUAL command\n");
1852	/* 8 parameters cmd */
1853	fdctrl->data_len = 9;
1854	goto enqueue;
1855	case 0x56:
1856	/* VERIFY variants */
1857	FLOPPY_DPRINTF("VERIFY command\n");
1858	/* 8 parameters cmd */
1859	fdctrl->data_len = 9;
1860	goto enqueue;
1861	case 0x59:
1862	/* SCAN_LOW_OR_EQUAL variants */
1863	FLOPPY_DPRINTF("SCAN_LOW_OR_EQUAL command\n");
1864	/* 8 parameters cmd */
1865	fdctrl->data_len = 9;
1866	goto enqueue;
1867	case 0x5D:
1868	/* SCAN_HIGH_OR_EQUAL variants */
1869	FLOPPY_DPRINTF("SCAN_HIGH_OR_EQUAL command\n");
1870	/* 8 parameters cmd */
1871	fdctrl->data_len = 9;
1872	goto enqueue;
1873	default:
1874	break;
1875	}
1876	switch (value & 0x7F) {
1877	case 0x45:
1878	/* WRITE variants */
1879	FLOPPY_DPRINTF("WRITE command\n");
1880	/* 8 parameters cmd */
1881	fdctrl->data_len = 9;
1882	goto enqueue;
1883	case 0x49:
1884	/* WRITE_DELETED variants */
1885	FLOPPY_DPRINTF("WRITE_DELETED command\n");
1886	/* 8 parameters cmd */
1887	fdctrl->data_len = 9;
1888	goto enqueue;
1889	default:
1890	break;
1891	}
1892	switch (value) {
1893	case 0x03:
1894	/* SPECIFY */
1895	FLOPPY_DPRINTF("SPECIFY command\n");
1896	/* 1 parameter cmd */
1897	fdctrl->data_len = 3;
1898	goto enqueue;
1899	case 0x04:
1900	/* SENSE_DRIVE_STATUS */
1901	FLOPPY_DPRINTF("SENSE_DRIVE_STATUS command\n");
1902	/* 1 parameter cmd */
1903	fdctrl->data_len = 2;
1904	goto enqueue;
1905	case 0x07:
1906	/* RECALIBRATE */
1907	FLOPPY_DPRINTF("RECALIBRATE command\n");
1908	/* 1 parameter cmd */
1909	fdctrl->data_len = 2;
1910	goto enqueue;
1911	case 0x08:
1912	/* SENSE_INTERRUPT_STATUS */
1913	FLOPPY_DPRINTF("SENSE_INTERRUPT_STATUS command (%02x)\n",
1914	fdctrl->int_status);
1915	/* No parameters cmd: returns status if no interrupt */
1916	#if 0
1917	fdctrl->fifo[0] =
1918	fdctrl->int_status \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1919	#else
1920	/* XXX: int_status handling is broken for read/write
1921	commands, so we do this hack. It should be suppressed
1922	ASAP */
1923	fdctrl->fifo[0] =
1924	0x20 \| (cur_drv->head << 2) \| fdctrl->cur_drv;
1925	#endif
1926	fdctrl->fifo[1] = cur_drv->track;
1927	fdctrl_set_fifo(fdctrl, 2, 0);
1928	fdctrl_reset_irq(fdctrl);
1929	fdctrl->int_status = 0xC0;
1930	return;
1931	case 0x0E:
1932	/* DUMPREG */
1933	FLOPPY_DPRINTF("DUMPREG command\n");
1934	/* Drives position */
1935	fdctrl->fifo[0] = drv0(fdctrl)->track;
1936	fdctrl->fifo[1] = drv1(fdctrl)->track;
1937	fdctrl->fifo[2] = 0;
1938	fdctrl->fifo[3] = 0;
1939	/* timers */
1940	fdctrl->fifo[4] = fdctrl->timer0;
1941	fdctrl->fifo[5] = (fdctrl->timer1 << 1) \| fdctrl->dma_en;
1942	fdctrl->fifo[6] = cur_drv->last_sect;
1943	fdctrl->fifo[7] = (fdctrl->lock << 7) \|
1944	(cur_drv->perpendicular << 2);
1945	fdctrl->fifo[8] = fdctrl->config;
1946	fdctrl->fifo[9] = fdctrl->precomp_trk;
1947	fdctrl_set_fifo(fdctrl, 10, 0);
1948	return;
1949	case 0x0F:
1950	/* SEEK */
1951	FLOPPY_DPRINTF("SEEK command\n");
1952	/* 2 parameters cmd */
1953	fdctrl->data_len = 3;
1954	goto enqueue;
1955	case 0x10:
1956	/* VERSION */
1957	FLOPPY_DPRINTF("VERSION command\n");
1958	/* No parameters cmd */
1959	/* Controller's version */
1960	fdctrl->fifo[0] = fdctrl->version;
1961	fdctrl_set_fifo(fdctrl, 1, 1);
1962	return;
1963	case 0x12:
1964	/* PERPENDICULAR_MODE */
1965	FLOPPY_DPRINTF("PERPENDICULAR_MODE command\n");
1966	/* 1 parameter cmd */
1967	fdctrl->data_len = 2;
1968	goto enqueue;
1969	case 0x13:
1970	/* CONFIGURE */
1971	FLOPPY_DPRINTF("CONFIGURE command\n");
1972	/* 3 parameters cmd */
1973	fdctrl->data_len = 4;
1974	goto enqueue;
1975	case 0x14:
1976	/* UNLOCK */
1977	FLOPPY_DPRINTF("UNLOCK command\n");
1978	/* No parameters cmd */
1979	fdctrl->lock = 0;
1980	fdctrl->fifo[0] = 0;
1981	fdctrl_set_fifo(fdctrl, 1, 0);
1982	return;
1983	case 0x17:
1984	/* POWERDOWN_MODE */
1985	FLOPPY_DPRINTF("POWERDOWN_MODE command\n");
1986	/* 2 parameters cmd */
1987	fdctrl->data_len = 3;
1988	goto enqueue;
1989	case 0x18:
1990	/* PART_ID */
1991	FLOPPY_DPRINTF("PART_ID command\n");
1992	/* No parameters cmd */
1993	fdctrl->fifo[0] = 0x41; /* Stepping 1 */
1994	fdctrl_set_fifo(fdctrl, 1, 0);
1995	return;
1996	case 0x2C:
1997	/* SAVE */
1998	FLOPPY_DPRINTF("SAVE command\n");
1999	/* No parameters cmd */
2000	fdctrl->fifo[0] = 0;
2001	fdctrl->fifo[1] = 0;
2002	/* Drives position */
2003	fdctrl->fifo[2] = drv0(fdctrl)->track;
2004	fdctrl->fifo[3] = drv1(fdctrl)->track;
2005	fdctrl->fifo[4] = 0;
2006	fdctrl->fifo[5] = 0;
2007	/* timers */
2008	fdctrl->fifo[6] = fdctrl->timer0;
2009	fdctrl->fifo[7] = fdctrl->timer1;
2010	fdctrl->fifo[8] = cur_drv->last_sect;
2011	fdctrl->fifo[9] = (fdctrl->lock << 7) \|
2012	(cur_drv->perpendicular << 2);
2013	fdctrl->fifo[10] = fdctrl->config;
2014	fdctrl->fifo[11] = fdctrl->precomp_trk;
2015	fdctrl->fifo[12] = fdctrl->pwrd;
2016	fdctrl->fifo[13] = 0;
2017	fdctrl->fifo[14] = 0;
2018	fdctrl_set_fifo(fdctrl, 15, 1);
2019	return;
2020	case 0x33:
2021	/* OPTION */
2022	FLOPPY_DPRINTF("OPTION command\n");
2023	/* 1 parameter cmd */
2024	fdctrl->data_len = 2;
2025	goto enqueue;
2026	case 0x42:
2027	/* READ_TRACK */
2028	FLOPPY_DPRINTF("READ_TRACK command\n");
2029	/* 8 parameters cmd */
2030	fdctrl->data_len = 9;
2031	goto enqueue;
2032	case 0x4A:
2033	/* READ_ID */
2034	FLOPPY_DPRINTF("READ_ID command\n");
2035	/* 1 parameter cmd */
2036	fdctrl->data_len = 2;
2037	goto enqueue;
2038	case 0x4C:
2039	/* RESTORE */
2040	FLOPPY_DPRINTF("RESTORE command\n");
2041	/* 17 parameters cmd */
2042	fdctrl->data_len = 18;
2043	goto enqueue;
2044	case 0x4D:
2045	/* FORMAT_TRACK */
2046	FLOPPY_DPRINTF("FORMAT_TRACK command\n");
2047	/* 5 parameters cmd */
2048	fdctrl->data_len = 6;
2049	goto enqueue;
2050	case 0x8E:
2051	/* DRIVE_SPECIFICATION_COMMAND */
2052	FLOPPY_DPRINTF("DRIVE_SPECIFICATION_COMMAND command\n");
2053	/* 5 parameters cmd */
2054	fdctrl->data_len = 6;
2055	goto enqueue;
2056	case 0x8F:
2057	/* RELATIVE_SEEK_OUT */
2058	FLOPPY_DPRINTF("RELATIVE_SEEK_OUT command\n");
2059	/* 2 parameters cmd */
2060	fdctrl->data_len = 3;
2061	goto enqueue;
2062	case 0x94:
2063	/* LOCK */
2064	FLOPPY_DPRINTF("LOCK command\n");
2065	/* No parameters cmd */
2066	fdctrl->lock = 1;
2067	fdctrl->fifo[0] = 0x10;
2068	fdctrl_set_fifo(fdctrl, 1, 1);
2069	return;
2070	case 0xCD:
2071	/* FORMAT_AND_WRITE */
2072	FLOPPY_DPRINTF("FORMAT_AND_WRITE command\n");
2073	/* 10 parameters cmd */
2074	fdctrl->data_len = 11;
2075	goto enqueue;
2076	case 0xCF:
2077	/* RELATIVE_SEEK_IN */
2078	FLOPPY_DPRINTF("RELATIVE_SEEK_IN command\n");
2079	/* 2 parameters cmd */
2080	fdctrl->data_len = 3;
2081	goto enqueue;
2082	default:
2083	/* Unknown command */
2084	FLOPPY_ERROR("unknown command: 0x%02x\n", value);
2085	fdctrl_unimplemented(fdctrl);
2086	return;
2087	}
2088	}
2089	enqueue:
2090	FLOPPY_DPRINTF("%s: %02x\n", __func__, value);
2091	fdctrl->fifo[fdctrl->data_pos] = value;
2092	if (++fdctrl->data_pos == fdctrl->data_len) {
2093	/* We now have all parameters
2094	* and will be able to treat the command
2095	*/
2096	if (fdctrl->data_state & FD_STATE_FORMAT) {
2097	fdctrl_format_sector(fdctrl);
2098	return;
2099	}
2100	switch (fdctrl->fifo[0] & 0x1F) {
2101	case 0x06:
2102	{
2103	/* READ variants */
2104	FLOPPY_DPRINTF("treat READ command\n");
2105	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2106	return;
2107	}
2108	case 0x0C:
2109	/* READ_DELETED variants */
2110	/* // FLOPPY_DPRINTF("treat READ_DELETED command\n"); */
2111	FLOPPY_ERROR("treat READ_DELETED command\n");
2112	fdctrl_start_transfer_del(fdctrl, FD_DIR_READ);
2113	return;
2114	case 0x16:
2115	/* VERIFY variants */
2116	/* // FLOPPY_DPRINTF("treat VERIFY command\n"); */
2117	FLOPPY_ERROR("treat VERIFY command\n");
2118	fdctrl_stop_transfer(fdctrl, 0x20, 0x00, 0x00);
2119	return;
2120	case 0x10:
2121	/* SCAN_EQUAL variants */
2122	/* // FLOPPY_DPRINTF("treat SCAN_EQUAL command\n"); */
2123	FLOPPY_ERROR("treat SCAN_EQUAL command\n");
2124	fdctrl_start_transfer(fdctrl, FD_DIR_SCANE);
2125	return;
2126	case 0x19:
2127	/* SCAN_LOW_OR_EQUAL variants */
2128	/* // FLOPPY_DPRINTF("treat SCAN_LOW_OR_EQUAL command\n"); */
2129	FLOPPY_ERROR("treat SCAN_LOW_OR_EQUAL command\n");
2130	fdctrl_start_transfer(fdctrl, FD_DIR_SCANL);
2131	return;
2132	case 0x1D:
2133	/* SCAN_HIGH_OR_EQUAL variants */
2134	/* // FLOPPY_DPRINTF("treat SCAN_HIGH_OR_EQUAL command\n"); */
2135	FLOPPY_ERROR("treat SCAN_HIGH_OR_EQUAL command\n");
2136	fdctrl_start_transfer(fdctrl, FD_DIR_SCANH);
2137	return;
2138	default:
2139	break;
2140	}
2141	switch (fdctrl->fifo[0] & 0x3F) {
2142	case 0x05:
2143	/* WRITE variants */
2144	FLOPPY_DPRINTF("treat WRITE command (%02x)\n", fdctrl->fifo[0]);
2145	fdctrl_start_transfer(fdctrl, FD_DIR_WRITE);
2146	return;
2147	case 0x09:
2148	/* WRITE_DELETED variants */
2149	/* // FLOPPY_DPRINTF("treat WRITE_DELETED command\n"); */
2150	FLOPPY_ERROR("treat WRITE_DELETED command\n");
2151	fdctrl_start_transfer_del(fdctrl, FD_DIR_WRITE);
2152	return;
2153	default:
2154	break;
2155	}
2156	switch (fdctrl->fifo[0]) {
2157	case 0x03:
2158	/* SPECIFY */
2159	FLOPPY_DPRINTF("treat SPECIFY command\n");
2160	fdctrl->timer0 = (fdctrl->fifo[1] >> 4) & 0xF;
2161	fdctrl->timer1 = fdctrl->fifo[2] >> 1;
2162	fdctrl->dma_en = 1 - (fdctrl->fifo[2] & 1) ;
2163	/* No result back */
2164	fdctrl_reset_fifo(fdctrl);
2165	break;
2166	case 0x04:
2167	/* SENSE_DRIVE_STATUS */
2168	FLOPPY_DPRINTF("treat SENSE_DRIVE_STATUS command\n");
2169	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2170	cur_drv = get_cur_drv(fdctrl);
2171	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2172	/* 1 Byte status back */
2173	fdctrl->fifo[0] = (cur_drv->ro << 6) \|
2174	(cur_drv->track == 0 ? 0x10 : 0x00) \|
2175	(cur_drv->head << 2) \|
2176	fdctrl->cur_drv \|
2177	0x28;
2178	fdctrl_set_fifo(fdctrl, 1, 0);
2179	break;
2180	case 0x07:
2181	/* RECALIBRATE */
2182	FLOPPY_DPRINTF("treat RECALIBRATE command\n");
2183	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2184	cur_drv = get_cur_drv(fdctrl);
2185	fd_recalibrate(cur_drv);
2186	fdctrl_reset_fifo(fdctrl);
2187	/* Raise Interrupt */
2188	fdctrl_raise_irq(fdctrl, 0x20);
2189	break;
2190	case 0x0F:
2191	/* SEEK */
2192	FLOPPY_DPRINTF("treat SEEK command\n");
2193	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2194	cur_drv = get_cur_drv(fdctrl);
2195	fd_start(cur_drv);
2196	if (fdctrl->fifo[2] <= cur_drv->track)
2197	cur_drv->dir = 1;
2198	else
2199	cur_drv->dir = 0;
2200	fdctrl_reset_fifo(fdctrl);
2201	#ifndef VBOX
2202	if (fdctrl->fifo[2] > cur_drv->max_track) {
2203	#else
2204	if ( fdctrl->fifo[2] > cur_drv->max_track
2205	&& cur_drv->fMediaPresent) {
2206	#endif
2207	fdctrl_raise_irq(fdctrl, 0x60);
2208	} else {
2209	cur_drv->track = fdctrl->fifo[2];
2210	/* Raise Interrupt */
2211	fdctrl_raise_irq(fdctrl, 0x20);
2212	}
2213	break;
2214	case 0x12:
2215	/* PERPENDICULAR_MODE */
2216	FLOPPY_DPRINTF("treat PERPENDICULAR_MODE command\n");
2217	if (fdctrl->fifo[1] & 0x80)
2218	cur_drv->perpendicular = fdctrl->fifo[1] & 0x7;
2219	/* No result back */
2220	fdctrl_reset_fifo(fdctrl);
2221	break;
2222	case 0x13:
2223	/* CONFIGURE */
2224	FLOPPY_DPRINTF("treat CONFIGURE command\n");
2225	fdctrl->config = fdctrl->fifo[2];
2226	fdctrl->precomp_trk = fdctrl->fifo[3];
2227	/* No result back */
2228	fdctrl_reset_fifo(fdctrl);
2229	break;
2230	case 0x17:
2231	/* POWERDOWN_MODE */
2232	FLOPPY_DPRINTF("treat POWERDOWN_MODE command\n");
2233	fdctrl->pwrd = fdctrl->fifo[1];
2234	fdctrl->fifo[0] = fdctrl->fifo[1];
2235	fdctrl_set_fifo(fdctrl, 1, 1);
2236	break;
2237	case 0x33:
2238	/* OPTION */
2239	FLOPPY_DPRINTF("treat OPTION command\n");
2240	/* No result back */
2241	fdctrl_reset_fifo(fdctrl);
2242	break;
2243	case 0x42:
2244	/* READ_TRACK */
2245	/* // FLOPPY_DPRINTF("treat READ_TRACK command\n"); */
2246	FLOPPY_ERROR("treat READ_TRACK command\n");
2247	fdctrl_start_transfer(fdctrl, FD_DIR_READ);
2248	break;
2249	case 0x4A:
2250	/* READ_ID */
2251	FLOPPY_DPRINTF("treat READ_ID command\n");
2252	/* XXX: should set main status register to busy */
2253	cur_drv->head = (fdctrl->fifo[1] >> 2) & 1;
2254	#ifdef VBOX
2255	TMTimerSetMillies(fdctrl->result_timer, 1000 / 50);
2256	#else
2257	qemu_mod_timer(fdctrl->result_timer,
2258	qemu_get_clock(vm_clock) + (ticks_per_sec / 50));
2259	#endif
2260	break;
2261	case 0x4C:
2262	/* RESTORE */
2263	FLOPPY_DPRINTF("treat RESTORE command\n");
2264	/* Drives position */
2265	drv0(fdctrl)->track = fdctrl->fifo[3];
2266	drv1(fdctrl)->track = fdctrl->fifo[4];
2267	/* timers */
2268	fdctrl->timer0 = fdctrl->fifo[7];
2269	fdctrl->timer1 = fdctrl->fifo[8];
2270	cur_drv->last_sect = fdctrl->fifo[9];
2271	fdctrl->lock = fdctrl->fifo[10] >> 7;
2272	cur_drv->perpendicular = (fdctrl->fifo[10] >> 2) & 0xF;
2273	fdctrl->config = fdctrl->fifo[11];
2274	fdctrl->precomp_trk = fdctrl->fifo[12];
2275	fdctrl->pwrd = fdctrl->fifo[13];
2276	fdctrl_reset_fifo(fdctrl);
2277	break;
2278	case 0x4D:
2279	/* FORMAT_TRACK */
2280	FLOPPY_DPRINTF("treat FORMAT_TRACK command\n");
2281	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2282	cur_drv = get_cur_drv(fdctrl);
2283	fdctrl->data_state \|= FD_STATE_FORMAT;
2284	if (fdctrl->fifo[0] & 0x80)
2285	fdctrl->data_state \|= FD_STATE_MULTI;
2286	else
2287	fdctrl->data_state &= ~FD_STATE_MULTI;
2288	fdctrl->data_state &= ~FD_STATE_SEEK;
2289	cur_drv->bps =
2290	fdctrl->fifo[2] > 7 ? 16384 : 128 << fdctrl->fifo[2];
2291	#if 0
2292	cur_drv->last_sect =
2293	cur_drv->flags & FDISK_DBL_SIDES ? fdctrl->fifo[3] :
2294	fdctrl->fifo[3] / 2;
2295	#else
2296	cur_drv->last_sect = fdctrl->fifo[3];
2297	#endif
2298	/* Bochs BIOS is buggy and don't send format informations
2299	* for each sector. So, pretend all's done right now...
2300	*/
2301	fdctrl->data_state &= ~FD_STATE_FORMAT;
2302	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2303	break;
2304	case 0x8E:
2305	/* DRIVE_SPECIFICATION_COMMAND */
2306	FLOPPY_DPRINTF("treat DRIVE_SPECIFICATION_COMMAND command\n");
2307	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x80) {
2308	/* Command parameters done */
2309	if (fdctrl->fifo[fdctrl->data_pos - 1] & 0x40) {
2310	fdctrl->fifo[0] = fdctrl->fifo[1];
2311	fdctrl->fifo[2] = 0;
2312	fdctrl->fifo[3] = 0;
2313	fdctrl_set_fifo(fdctrl, 4, 1);
2314	} else {
2315	fdctrl_reset_fifo(fdctrl);
2316	}
2317	} else if (fdctrl->data_len > 7) {
2318	/* ERROR */
2319	fdctrl->fifo[0] = 0x80 \|
2320	(cur_drv->head << 2) \| fdctrl->cur_drv;
2321	fdctrl_set_fifo(fdctrl, 1, 1);
2322	}
2323	break;
2324	case 0x8F:
2325	/* RELATIVE_SEEK_OUT */
2326	FLOPPY_DPRINTF("treat RELATIVE_SEEK_OUT command\n");
2327	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2328	cur_drv = get_cur_drv(fdctrl);
2329	fd_start(cur_drv);
2330	cur_drv->dir = 0;
2331	if (fdctrl->fifo[2] + cur_drv->track >= cur_drv->max_track) {
2332	cur_drv->track = cur_drv->max_track - 1;
2333	} else {
2334	cur_drv->track += fdctrl->fifo[2];
2335	}
2336	fdctrl_reset_fifo(fdctrl);
2337	fdctrl_raise_irq(fdctrl, 0x20);
2338	break;
2339	case 0xCD:
2340	/* FORMAT_AND_WRITE */
2341	/* // FLOPPY_DPRINTF("treat FORMAT_AND_WRITE command\n"); */
2342	FLOPPY_ERROR("treat FORMAT_AND_WRITE command\n");
2343	fdctrl_unimplemented(fdctrl);
2344	break;
2345	case 0xCF:
2346	/* RELATIVE_SEEK_IN */
2347	FLOPPY_DPRINTF("treat RELATIVE_SEEK_IN command\n");
2348	fdctrl->cur_drv = fdctrl->fifo[1] & 1;
2349	cur_drv = get_cur_drv(fdctrl);
2350	fd_start(cur_drv);
2351	cur_drv->dir = 1;
2352	if (fdctrl->fifo[2] > cur_drv->track) {
2353	cur_drv->track = 0;
2354	} else {
2355	cur_drv->track -= fdctrl->fifo[2];
2356	}
2357	fdctrl_reset_fifo(fdctrl);
2358	/* Raise Interrupt */
2359	fdctrl_raise_irq(fdctrl, 0x20);
2360	break;
2361	}
2362	}
2363	}
2364
2365	static void fdctrl_result_timer(void *opaque)
2366	{
2367	fdctrl_t *fdctrl = opaque;
2368	fdctrl_stop_transfer(fdctrl, 0x00, 0x00, 0x00);
2369	}
2370
2371
2372	#ifdef VBOX
2373	static DECLCALLBACK(void) fdc_timer (PPDMDEVINS pDevIns, PTMTIMER pTimer)
2374	{
2375	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2376	fdctrl_result_timer (fdctrl);
2377	}
2378
2379	static DECLCALLBACK(int) fdc_io_write (PPDMDEVINS pDevIns,
2380	void *pvUser,
2381	RTIOPORT Port,
2382	uint32_t u32,
2383	unsigned cb)
2384	{
2385	if (cb == 1) {
2386	fdctrl_write (pvUser, Port, u32);
2387	}
2388	else {
2389	AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", Port, cb, u32));
2390	}
2391	return VINF_SUCCESS;
2392	}
2393
2394	static DECLCALLBACK(int) fdc_io_read (PPDMDEVINS pDevIns,
2395	void *pvUser,
2396	RTIOPORT Port,
2397	uint32_t *pu32,
2398	unsigned cb)
2399	{
2400	if (cb == 1) {
2401	*pu32 = fdctrl_read (pvUser, Port);
2402	return VINF_SUCCESS;
2403	}
2404	else {
2405	return VERR_IOM_IOPORT_UNUSED;
2406	}
2407	}
2408
2409	static DECLCALLBACK(int) SaveExec (PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
2410	{
2411	fdctrl_t s = PDMINS2DATA (pDevIns, fdctrl_t );
2412	QEMUFile *f = pSSMHandle;
2413	unsigned int i;
2414
2415	qemu_put_8s (f, &s->version);
2416	qemu_put_8s (f, &s->irq_lvl);
2417	qemu_put_8s (f, &s->dma_chann);
2418	qemu_put_be32s (f, &s->io_base);
2419	qemu_put_8s (f, &s->state);
2420	qemu_put_8s (f, &s->dma_en);
2421	qemu_put_8s (f, &s->cur_drv);
2422	qemu_put_8s (f, &s->bootsel);
2423	qemu_put_buffer (f, s->fifo, FD_SECTOR_LEN);
2424	qemu_put_be32s (f, &s->data_pos);
2425	qemu_put_be32s (f, &s->data_len);
2426	qemu_put_8s (f, &s->data_state);
2427	qemu_put_8s (f, &s->data_dir);
2428	qemu_put_8s (f, &s->int_status);
2429	qemu_put_8s (f, &s->eot);
2430	qemu_put_8s (f, &s->timer0);
2431	qemu_put_8s (f, &s->timer1);
2432	qemu_put_8s (f, &s->precomp_trk);
2433	qemu_put_8s (f, &s->config);
2434	qemu_put_8s (f, &s->lock);
2435	qemu_put_8s (f, &s->pwrd);
2436
2437	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2438	fdrive_t *d = &s->drives[i];
2439
2440	SSMR3PutMem (pSSMHandle, &d->Led, sizeof (d->Led));
2441	qemu_put_be32s (f, &d->drive);
2442	qemu_put_be32s (f, &d->drflags);
2443	qemu_put_8s (f, &d->perpendicular);
2444	qemu_put_8s (f, &d->head);
2445	qemu_put_8s (f, &d->track);
2446	qemu_put_8s (f, &d->sect);
2447	qemu_put_8s (f, &d->dir);
2448	qemu_put_8s (f, &d->rw);
2449	qemu_put_be32s (f, &d->flags);
2450	qemu_put_8s (f, &d->last_sect);
2451	qemu_put_8s (f, &d->max_track);
2452	qemu_put_be16s (f, &d->bps);
2453	qemu_put_8s (f, &d->ro);
2454	}
2455	return TMR3TimerSave (s->result_timer, pSSMHandle);
2456	}
2457
2458	static DECLCALLBACK(int) LoadExec (PPDMDEVINS pDevIns,
2459	PSSMHANDLE pSSMHandle,
2460	uint32_t u32Version)
2461	{
2462	fdctrl_t s = PDMINS2DATA (pDevIns, fdctrl_t );
2463	QEMUFile *f = pSSMHandle;
2464	unsigned int i;
2465
2466	if (u32Version != 1) {
2467	AssertMsgFailed(("u32Version=%d\n", u32Version));
2468	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
2469	}
2470
2471	qemu_get_8s (f, &s->version);
2472	qemu_get_8s (f, &s->irq_lvl);
2473	qemu_get_8s (f, &s->dma_chann);
2474	qemu_get_be32s (f, &s->io_base);
2475	qemu_get_8s (f, &s->state);
2476	qemu_get_8s (f, &s->dma_en);
2477	qemu_get_8s (f, &s->cur_drv);
2478	qemu_get_8s (f, &s->bootsel);
2479	qemu_get_buffer (f, s->fifo, FD_SECTOR_LEN);
2480	qemu_get_be32s (f, &s->data_pos);
2481	qemu_get_be32s (f, &s->data_len);
2482	qemu_get_8s (f, &s->data_state);
2483	qemu_get_8s (f, &s->data_dir);
2484	qemu_get_8s (f, &s->int_status);
2485	qemu_get_8s (f, &s->eot);
2486	qemu_get_8s (f, &s->timer0);
2487	qemu_get_8s (f, &s->timer1);
2488	qemu_get_8s (f, &s->precomp_trk);
2489	qemu_get_8s (f, &s->config);
2490	qemu_get_8s (f, &s->lock);
2491	qemu_get_8s (f, &s->pwrd);
2492
2493	for (i = 0; i < sizeof (s->drives) / sizeof (s->drives[0]); ++i) {
2494	fdrive_t *d = &s->drives[i];
2495
2496	SSMR3GetMem (pSSMHandle, &d->Led, sizeof (d->Led));
2497	qemu_get_be32s (f, &d->drive);
2498	qemu_get_be32s (f, &d->drflags);
2499	qemu_get_8s (f, &d->perpendicular);
2500	qemu_get_8s (f, &d->head);
2501	qemu_get_8s (f, &d->track);
2502	qemu_get_8s (f, &d->sect);
2503	qemu_get_8s (f, &d->dir);
2504	qemu_get_8s (f, &d->rw);
2505	qemu_get_be32s (f, &d->flags);
2506	qemu_get_8s (f, &d->last_sect);
2507	qemu_get_8s (f, &d->max_track);
2508	qemu_get_be16s (f, &d->bps);
2509	qemu_get_8s (f, &d->ro);
2510	}
2511	return TMR3TimerLoad (s->result_timer, pSSMHandle);
2512	}
2513
2514	/**
2515	* Queries an interface to the driver.
2516	*
2517	* @returns Pointer to interface.
2518	* @returns NULL if the interface was not supported by the device.
2519	* @param pInterface Pointer to IDEState::IBase.
2520	* @param enmInterface The requested interface identification.
2521	*/
2522	static DECLCALLBACK(void *) fdQueryInterface (PPDMIBASE pInterface,
2523	PDMINTERFACE enmInterface)
2524	{
2525	fdrive_t *drv = PDMIBASE_2_FDRIVE(pInterface);
2526	switch (enmInterface) {
2527	case PDMINTERFACE_BASE:
2528	return &drv->IBase;
2529	case PDMINTERFACE_BLOCK_PORT:
2530	return &drv->IPort;
2531	case PDMINTERFACE_MOUNT_NOTIFY:
2532	return &drv->IMountNotify;
2533	default:
2534	return NULL;
2535	}
2536	}
2537
2538	/**
2539	* Gets the pointer to the status LED of a unit.
2540	*
2541	* @returns VBox status code.
2542	* @param pInterface Pointer to the interface structure containing the called function pointer.
2543	* @param iLUN The unit which status LED we desire.
2544	* @param ppLed Where to store the LED pointer.
2545	*/
2546	static DECLCALLBACK(int) fdcStatusQueryStatusLed (PPDMILEDPORTS pInterface,
2547	unsigned iLUN,
2548	PPDMLED *ppLed)
2549	{
2550	fdctrl_t fdctrl = (fdctrl_t )
2551	((uintptr_t )pInterface - RT_OFFSETOF (fdctrl_t, ILeds));
2552	if (iLUN < ELEMENTS(fdctrl->drives)) {
2553	*ppLed = &fdctrl->drives[iLUN].Led;
2554	Assert ((*ppLed)->u32Magic == PDMLED_MAGIC);
2555	return VINF_SUCCESS;
2556	}
2557	return VERR_PDM_LUN_NOT_FOUND;
2558	}
2559
2560
2561	/**
2562	* Queries an interface to the status LUN.
2563	*
2564	* @returns Pointer to interface.
2565	* @returns NULL if the interface was not supported by the device.
2566	* @param pInterface Pointer to IDEState::IBase.
2567	* @param enmInterface The requested interface identification.
2568	*/
2569	static DECLCALLBACK(void *) fdcStatusQueryInterface (PPDMIBASE pInterface,
2570	PDMINTERFACE enmInterface)
2571	{
2572	fdctrl_t fdctrl = (fdctrl_t )
2573	((uintptr_t)pInterface - RT_OFFSETOF (fdctrl_t, IBaseStatus));
2574	switch (enmInterface) {
2575	case PDMINTERFACE_BASE:
2576	return &fdctrl->IBaseStatus;
2577	case PDMINTERFACE_LED_PORTS:
2578	return &fdctrl->ILeds;
2579	default:
2580	return NULL;
2581	}
2582	}
2583
2584
2585	/**
2586	* Configure a drive.
2587	*
2588	* @returns VBox status code.
2589	* @param drv The drive in question.
2590	* @param pDevIns The driver instance.
2591	*/
2592	static int fdConfig (fdrive_t *drv, PPDMDEVINS pDevIns)
2593	{
2594	static const char *descs[] = {"Floppy Drive A:", "Floppy Drive B"};
2595	int rc;
2596
2597	/*
2598	* Reset the LED just to be on the safe side.
2599	*/
2600	Assert (ELEMENTS(descs) > drv->iLUN);
2601	Assert (drv->Led.u32Magic == PDMLED_MAGIC);
2602	drv->Led.Actual.u32 = 0;
2603	drv->Led.Asserted.u32 = 0;
2604
2605	/*
2606	* Try attach the block device and get the interfaces.
2607	*/
2608	rc = PDMDevHlpDriverAttach (pDevIns, drv->iLUN, &drv->IBase, &drv->pDrvBase, descs[drv->iLUN]);
2609	if (VBOX_SUCCESS (rc))
2610	{
2611	drv->pDrvBlock = drv->pDrvBase->pfnQueryInterface (
2612	drv->pDrvBase,
2613	PDMINTERFACE_BLOCK
2614	);
2615	if (drv->pDrvBlock) {
2616	drv->pDrvBlockBios = drv->pDrvBase->pfnQueryInterface (
2617	drv->pDrvBase,
2618	PDMINTERFACE_BLOCK_BIOS
2619	);
2620	if (drv->pDrvBlockBios) {
2621	drv->pDrvMount = drv->pDrvBase->pfnQueryInterface (
2622	drv->pDrvBase,
2623	PDMINTERFACE_MOUNT
2624	);
2625	if (drv->pDrvMount) {
2626	/*
2627	* Init the state.
2628	*/
2629	drv->drive = FDRIVE_DRV_NONE;
2630	drv->drflags = 0;
2631	drv->perpendicular = 0;
2632	/* Disk */
2633	drv->last_sect = 0;
2634	drv->max_track = 0;
2635	drv->fMediaPresent = false;
2636	}
2637	else {
2638	AssertMsgFailed (("Configuration error: LUN#%d without mountable interface!\n", drv->iLUN));
2639	rc = VERR_PDM_MISSING_INTERFACE;
2640	}
2641
2642	}
2643	else {
2644	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block BIOS interface!\n", drv->iLUN));
2645	rc = VERR_PDM_MISSING_INTERFACE;
2646	}
2647
2648	}
2649	else {
2650	AssertMsgFailed (("Configuration error: LUN#%d hasn't a block interface!\n", drv->iLUN));
2651	rc = VERR_PDM_MISSING_INTERFACE;
2652	}
2653	}
2654	else {
2655	AssertMsg (rc == VERR_PDM_NO_ATTACHED_DRIVER,
2656	("Failed to attach LUN#%d. rc=%Vrc\n", drv->iLUN, rc));
2657	}
2658
2659	if (VBOX_FAILURE (rc)) {
2660	drv->pDrvBase = NULL;
2661	drv->pDrvBlock = NULL;
2662	drv->pDrvBlockBios = NULL;
2663	drv->pDrvMount = NULL;
2664	}
2665	LogFlow (("fdConfig: returns %Vrc\n", rc));
2666	return rc;
2667	}
2668
2669
2670	/**
2671	* Attach command.
2672	*
2673	* This is called when we change block driver for a floppy drive.
2674	*
2675	* @returns VBox status code.
2676	* @param pDevIns The device instance.
2677	* @param iLUN The logical unit which is being detached.
2678	*/
2679	static DECLCALLBACK(int) fdcAttach (PPDMDEVINS pDevIns,
2680	unsigned iLUN)
2681	{
2682	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2683	fdrive_t *drv;
2684	int rc;
2685	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2686
2687	/*
2688	* Validate.
2689	*/
2690	if (iLUN > 2) {
2691	AssertMsgFailed (("Configuration error: cannot attach or detach any but the first two LUNs - iLUN=%u\n",
2692	iLUN));
2693	return VERR_PDM_DEVINS_NO_ATTACH;
2694	}
2695
2696	/*
2697	* Locate the drive and stuff.
2698	*/
2699	drv = &fdctrl->drives[iLUN];
2700
2701	/* the usual paranoia */
2702	AssertRelease (!drv->pDrvBase);
2703	AssertRelease (!drv->pDrvBlock);
2704	AssertRelease (!drv->pDrvBlockBios);
2705	AssertRelease (!drv->pDrvMount);
2706
2707	rc = fdConfig (drv, pDevIns);
2708	AssertMsg (rc != VERR_PDM_NO_ATTACHED_DRIVER,
2709	("Configuration error: failed to configure drive %d, rc=%Vrc\n", rc));
2710	if (VBOX_SUCCESS(rc)) {
2711	fd_revalidate (drv);
2712	}
2713
2714	LogFlow (("floppyAttach: returns %Vrc\n", rc));
2715	return rc;
2716	}
2717
2718
2719	/**
2720	* Detach notification.
2721	*
2722	* The floppy drive has been temporarily 'unplugged'.
2723	*
2724	* @param pDevIns The device instance.
2725	* @param iLUN The logical unit which is being detached.
2726	*/
2727	static DECLCALLBACK(void) fdcDetach (PPDMDEVINS pDevIns,
2728	unsigned iLUN)
2729	{
2730	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2731	LogFlow (("ideDetach: iLUN=%u\n", iLUN));
2732
2733	switch (iLUN) {
2734	case 0:
2735	case 1: {
2736	fdrive_t *drv = &fdctrl->drives[iLUN];
2737	drv->pDrvBase = NULL;
2738	drv->pDrvBlock = NULL;
2739	drv->pDrvBlockBios = NULL;
2740	drv->pDrvMount = NULL;
2741	break;
2742	}
2743
2744	default:
2745	AssertMsgFailed (("Cannot detach LUN#%d!\n", iLUN));
2746	break;
2747	}
2748	}
2749
2750
2751	/**
2752	* Handle reset.
2753	*
2754	* I haven't check the specs on what's supposed to happen on reset, but we
2755	* should get any 'FATAL: floppy recal:f07 ctrl not ready' when resetting
2756	* at wrong time like we do if this was all void.
2757	*
2758	* @param pDevIns The device instance.
2759	*/
2760	static DECLCALLBACK(void) fdcReset (PPDMDEVINS pDevIns)
2761	{
2762	fdctrl_t fdctrl = PDMINS2DATA (pDevIns, fdctrl_t );
2763	int i;
2764	LogFlow (("fdcReset:\n"));
2765
2766	fdctrl_reset(fdctrl, 0);
2767	fdctrl->state = FD_CTRL_ACTIVE;
2768
2769	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2770	fd_revalidate(&fdctrl->drives[i]);
2771	}
2772	}
2773
2774
2775	/**
2776	* Construct a device instance for a VM.
2777	*
2778	* @returns VBox status.
2779	* @param pDevIns The device instance data.
2780	* If the registration structure is needed, pDevIns->pDevReg points to it.
2781	* @param iInstance Instance number. Use this to figure out which registers and such to use.
2782	* The device number is also found in pDevIns->iInstance, but since it's
2783	* likely to be freqently used PDM passes it as parameter.
2784	* @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
2785	* of the device instance. It's also found in pDevIns->pCfgHandle, but like
2786	* iInstance it's expected to be used a bit in this function.
2787	*/
2788	static DECLCALLBACK(int) fdcConstruct (PPDMDEVINS pDevIns,
2789	int iInstance,
2790	PCFGMNODE pCfgHandle)
2791	{
2792	int rc;
2793	fdctrl_t fdctrl = PDMINS2DATA(pDevIns, fdctrl_t);
2794	int i;
2795	bool mem_mapped;
2796	uint16_t io_base;
2797	uint8_t irq_lvl, dma_chann;
2798	PPDMIBASE pBase;
2799
2800	Assert(iInstance == 0);
2801
2802	/*
2803	* Validate configuration.
2804	*/
2805	if (!CFGMR3AreValuesValid(pCfgHandle, "IRQ\0DMA\0MemMapped\0IOBase\0")) {
2806	return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
2807	}
2808
2809	/*
2810	* Read the configuration.
2811	*/
2812	rc = CFGMR3QueryU8 (pCfgHandle, "IRQ", &irq_lvl);
2813	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2814	irq_lvl = 6;
2815	}
2816	else if (VBOX_FAILURE (rc)) {
2817	AssertMsgFailed (("Configuration error: Failed to read U8 IRQ, rc=%Vrc\n", rc));
2818	return rc;
2819	}
2820
2821	rc = CFGMR3QueryU8 (pCfgHandle, "DMA", &dma_chann);
2822	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2823	dma_chann = 2;
2824	}
2825	else if (VBOX_FAILURE (rc)) {
2826	AssertMsgFailed (("Configuration error: Failed to read U8 DMA, rc=%Vrc\n", rc));
2827	return rc;
2828	}
2829
2830	rc = CFGMR3QueryU16 (pCfgHandle, "IOBase", &io_base);
2831	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2832	io_base = 0x3f0;
2833	}
2834	else if (VBOX_FAILURE (rc)) {
2835	AssertMsgFailed (("Configuration error: Failed to read U16 IOBase, rc=%Vrc\n", rc));
2836	return rc;
2837	}
2838
2839	rc = CFGMR3QueryBool (pCfgHandle, "MemMapped", &mem_mapped);
2840	if (rc == VERR_CFGM_VALUE_NOT_FOUND) {
2841	mem_mapped = false;
2842	}
2843	else if (VBOX_FAILURE (rc)) {
2844	AssertMsgFailed (("Configuration error: Failed to read bool value MemMapped rc=%Vrc\n", rc));
2845	return rc;
2846	}
2847
2848	/*
2849	* Initialize data.
2850	*/
2851	LogFlow(("fdcConstruct: irq_lvl=%d dma_chann=%d io_base=%#x\n", irq_lvl, dma_chann, io_base));
2852	fdctrl->pDevIns = pDevIns;
2853	fdctrl->version = 0x90; /* Intel 82078 controller */
2854	fdctrl->irq_lvl = irq_lvl;
2855	fdctrl->dma_chann = dma_chann;
2856	fdctrl->io_base = io_base;
2857	fdctrl->config = 0x60; /* Implicit seek, polling & FIFO enabled */
2858
2859	fdctrl->IBaseStatus.pfnQueryInterface = fdcStatusQueryInterface;
2860	fdctrl->ILeds.pfnQueryStatusLed = fdcStatusQueryStatusLed;
2861
2862	for (i = 0; i < ELEMENTS(fdctrl->drives); ++i) {
2863	fdrive_t *drv = &fdctrl->drives[i];
2864
2865	drv->drive = FDRIVE_DRV_NONE;
2866	drv->iLUN = i;
2867
2868	drv->IBase.pfnQueryInterface = fdQueryInterface;
2869	drv->IMountNotify.pfnMountNotify = fdMountNotify;
2870	drv->IMountNotify.pfnUnmountNotify = fdUnmountNotify;
2871	drv->Led.u32Magic = PDMLED_MAGIC;
2872	}
2873
2874	/*
2875	* Create the FDC timer.
2876	*/
2877	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, fdc_timer, "FDC Timer", &fdctrl->result_timer);
2878	if (VBOX_FAILURE (rc)) {
2879	return rc;
2880	}
2881
2882	/*
2883	* Register DMA channel.
2884	*/
2885	if (fdctrl->dma_chann != 0xff) {
2886	fdctrl->dma_en = 1;
2887	rc = pDevIns->pDevHlp->pfnDMARegister (
2888	pDevIns,
2889	dma_chann,
2890	&fdctrl_transfer_handler,
2891	fdctrl);
2892	if (VBOX_FAILURE (rc)) {
2893	return rc;
2894	}
2895	} else {
2896	fdctrl->dma_en = 0;
2897	}
2898
2899	/*
2900	* IO / MMIO.
2901	*/
2902	if (mem_mapped) {
2903	AssertMsgFailed (("Memory mapped floppy not support by now\n"));
2904	return VERR_NOT_SUPPORTED;
2905	#if 0
2906	FLOPPY_ERROR("memory mapped floppy not supported by now !\n");
2907	io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write);
2908	cpu_register_physical_memory(base, 0x08, io_mem);
2909	#endif
2910	} else {
2911	rc = pDevIns->pDevHlp->pfnIOPortRegister (
2912	pDevIns,
2913	io_base + 0x1,
2914	5,
2915	fdctrl,
2916	fdc_io_write,
2917	fdc_io_read,
2918	NULL, NULL,
2919	"FDC#1"
2920	);
2921	if (VBOX_FAILURE (rc)) {
2922	return rc;
2923	}
2924
2925	rc = pDevIns->pDevHlp->pfnIOPortRegister (
2926	pDevIns,
2927	io_base + 0x7,
2928	1,
2929	fdctrl,
2930	fdc_io_write,
2931	fdc_io_read,
2932	NULL, NULL,
2933	"FDC#2"
2934	);
2935	if (VBOX_FAILURE (rc)) {
2936	return rc;
2937	}
2938	}
2939
2940	/*
2941	* Register the saved state data unit.
2942	*/
2943	rc = pDevIns->pDevHlp->pfnSSMRegister (
2944	pDevIns, /* pDevIns */
2945	pDevIns->pDevReg->szDeviceName, /* pszName */
2946	iInstance, /* u32Instance */
2947	1 /* u32Version */,
2948	sizeof (fdctrl), / cbGuess */
2949	NULL, /* pfnSavePrep */
2950	SaveExec, /* pfnSaveExec */
2951	NULL, /* pfnSaveDone */
2952	NULL, /* pfnLoadPrep */
2953	LoadExec, /* pfnLoadExec */
2954	NULL /* pfnLoadDone */
2955	);
2956	if (VBOX_FAILURE(rc))
2957	return rc;
2958
2959	/*
2960	* Attach the status port (optional).
2961	*/
2962	rc = PDMDevHlpDriverAttach (pDevIns, PDM_STATUS_LUN, &fdctrl->IBaseStatus, &pBase, "Status Port");
2963	if (VBOX_SUCCESS (rc)) {
2964	fdctrl->pLedsConnector =
2965	pBase->pfnQueryInterface (pBase, PDMINTERFACE_LED_CONNECTORS);
2966	}
2967	else if (rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2968	AssertMsgFailed (("Failed to attach to status driver. rc=%Vrc\n",
2969	rc));
2970	return rc;
2971	}
2972
2973	/*
2974	* Initialize drives.
2975	*/
2976	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2977	fdrive_t *drv = &fdctrl->drives[i];
2978	rc = fdConfig (drv, pDevIns);
2979	if ( VBOX_FAILURE (rc)
2980	&& rc != VERR_PDM_NO_ATTACHED_DRIVER) {
2981	AssertMsgFailed (("Configuration error: failed to configure drive %d, rc=%Vrc\n", rc));
2982	return rc;
2983	}
2984	}
2985
2986	fdctrl_reset(fdctrl, 0);
2987	fdctrl->state = FD_CTRL_ACTIVE;
2988
2989	for (i = 0; i < ELEMENTS(fdctrl->drives); i++) {
2990	fd_revalidate(&fdctrl->drives[i]);
2991	}
2992
2993	return VINF_SUCCESS;
2994	}
2995
2996	/**
2997	* The device registration structure.
2998	*/
2999	const PDMDEVREG g_DeviceFloppyController =
3000	{
3001	/* u32Version */
3002	PDM_DEVREG_VERSION,
3003	/* szDeviceName */
3004	"i82078",
3005	/* szGCMod */
3006	"",
3007	/* szR0Mod */
3008	"",
3009	/* pszDescription */
3010	"Floppy drive controller (Intel 82078)",
3011	/* fFlags */
3012	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_DEFAULT,
3013	/* fClass */
3014	PDM_DEVREG_CLASS_STORAGE,
3015	/* cMaxInstances */
3016	1,
3017	/* cbInstance */
3018	sizeof(fdctrl_t),
3019	/* pfnConstruct */
3020	fdcConstruct,
3021	/* pfnDestruct */
3022	NULL,
3023	/* pfnRelocate */
3024	NULL,
3025	/* pfnIOCtl */
3026	NULL,
3027	/* pfnPowerOn */
3028	NULL,
3029	/* pfnReset */
3030	fdcReset,
3031	/* pfnSuspend */
3032	NULL,
3033	/* pfnResume */
3034	NULL,
3035	/* pfnAttach */
3036	fdcAttach,
3037	/* pfnDetach */
3038	fdcDetach,
3039	/* pfnQueryInterface. */
3040	NULL
3041	};
3042
3043	#endif /* VBOX */
3044
3045	/*
3046	* Local Variables:
3047	* mode: c
3048	* c-file-style: "k&r"
3049	* indent-tabs-mode: nil
3050	* End:
3051	*/
3052

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source: vbox/trunk/src/VBox/Devices/Storage/fdc.c@ 4849

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