Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * The Mitsumi CDROM interface | |
3 | * Copyright (C) 1995 1996 Heiko Schlittermann <heiko@lotte.sax.de> | |
4 | * VERSION: 2.14(hs) | |
5 | * | |
6 | * ... anyway, I'm back again, thanks to Marcin, he adopted | |
7 | * large portions of my code (at least the parts containing | |
8 | * my main thoughts ...) | |
9 | * | |
10 | ****************** H E L P ********************************* | |
11 | * If you ever plan to update your CD ROM drive and perhaps | |
12 | * want to sell or simply give away your Mitsumi FX-001[DS] | |
13 | * -- Please -- | |
14 | * mail me (heiko@lotte.sax.de). When my last drive goes | |
15 | * ballistic no more driver support will be available from me! | |
16 | ************************************************************* | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2, or (at your option) | |
21 | * any later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, | |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; see the file COPYING. If not, write to | |
30 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
31 | * | |
32 | * Thanks to | |
33 | * The Linux Community at all and ... | |
34 | * Martin Harriss (he wrote the first Mitsumi Driver) | |
35 | * Eberhard Moenkeberg (he gave me much support and the initial kick) | |
36 | * Bernd Huebner, Ruediger Helsch (Unifix-Software GmbH, they | |
37 | * improved the original driver) | |
38 | * Jon Tombs, Bjorn Ekwall (module support) | |
39 | * Daniel v. Mosnenck (he sent me the Technical and Programming Reference) | |
40 | * Gerd Knorr (he lent me his PhotoCD) | |
41 | * Nils Faerber and Roger E. Wolff (extensively tested the LU portion) | |
42 | * Andreas Kies (testing the mysterious hang-ups) | |
43 | * Heiko Eissfeldt (VERIFY_READ/WRITE) | |
44 | * Marcin Dalecki (improved performance, shortened code) | |
45 | * ... somebody forgotten? | |
46 | * | |
47 | * 9 November 1999 -- Make kernel-parameter implementation work with 2.3.x | |
48 | * Removed init_module & cleanup_module in favor of | |
49 | * module_init & module_exit. | |
50 | * Torben Mathiasen <tmm@image.dk> | |
51 | */ | |
52 | ||
53 | ||
44456d37 | 54 | #ifdef RCS |
1da177e4 LT |
55 | static const char *mcdx_c_version |
56 | = "$Id: mcdx.c,v 1.21 1997/01/26 07:12:59 davem Exp $"; | |
57 | #endif | |
58 | ||
59 | #include <linux/module.h> | |
60 | ||
61 | #include <linux/errno.h> | |
62 | #include <linux/interrupt.h> | |
63 | #include <linux/fs.h> | |
64 | #include <linux/kernel.h> | |
65 | #include <linux/cdrom.h> | |
66 | #include <linux/ioport.h> | |
67 | #include <linux/mm.h> | |
68 | #include <linux/slab.h> | |
69 | #include <linux/init.h> | |
70 | #include <asm/io.h> | |
71 | #include <asm/current.h> | |
72 | #include <asm/uaccess.h> | |
73 | ||
74 | #include <linux/major.h> | |
75 | #define MAJOR_NR MITSUMI_X_CDROM_MAJOR | |
76 | #include <linux/blkdev.h> | |
1da177e4 LT |
77 | |
78 | #include "mcdx.h" | |
79 | ||
80 | #ifndef HZ | |
81 | #error HZ not defined | |
82 | #endif | |
83 | ||
84 | #define xwarn(fmt, args...) printk(KERN_WARNING MCDX " " fmt, ## args) | |
85 | ||
86 | #if !MCDX_QUIET | |
87 | #define xinfo(fmt, args...) printk(KERN_INFO MCDX " " fmt, ## args) | |
88 | #else | |
89 | #define xinfo(fmt, args...) { ; } | |
90 | #endif | |
91 | ||
92 | #if MCDX_DEBUG | |
93 | #define xtrace(lvl, fmt, args...) \ | |
94 | { if (lvl > 0) \ | |
95 | { printk(KERN_DEBUG MCDX ":: " fmt, ## args); } } | |
96 | #define xdebug(fmt, args...) printk(KERN_DEBUG MCDX ":: " fmt, ## args) | |
97 | #else | |
98 | #define xtrace(lvl, fmt, args...) { ; } | |
99 | #define xdebug(fmt, args...) { ; } | |
100 | #endif | |
101 | ||
102 | /* CONSTANTS *******************************************************/ | |
103 | ||
104 | /* Following are the number of sectors we _request_ from the drive | |
105 | every time an access outside the already requested range is done. | |
106 | The _direct_ size is the number of sectors we're allowed to skip | |
107 | directly (performing a read instead of requesting the new sector | |
108 | needed */ | |
75c96f85 AB |
109 | static const int REQUEST_SIZE = 800; /* should be less then 255 * 4 */ |
110 | static const int DIRECT_SIZE = 400; /* should be less then REQUEST_SIZE */ | |
1da177e4 LT |
111 | |
112 | enum drivemodes { TOC, DATA, RAW, COOKED }; | |
113 | enum datamodes { MODE0, MODE1, MODE2 }; | |
114 | enum resetmodes { SOFT, HARD }; | |
115 | ||
75c96f85 AB |
116 | static const int SINGLE = 0x01; /* single speed drive (FX001S, LU) */ |
117 | static const int DOUBLE = 0x02; /* double speed drive (FX001D, ..? */ | |
118 | static const int DOOR = 0x04; /* door locking capability */ | |
119 | static const int MULTI = 0x08; /* multi session capability */ | |
1da177e4 | 120 | |
75c96f85 AB |
121 | static const unsigned char READ1X = 0xc0; |
122 | static const unsigned char READ2X = 0xc1; | |
1da177e4 LT |
123 | |
124 | ||
125 | /* DECLARATIONS ****************************************************/ | |
126 | struct s_subqcode { | |
127 | unsigned char control; | |
128 | unsigned char tno; | |
129 | unsigned char index; | |
130 | struct cdrom_msf0 tt; | |
131 | struct cdrom_msf0 dt; | |
132 | }; | |
133 | ||
134 | struct s_diskinfo { | |
135 | unsigned int n_first; | |
136 | unsigned int n_last; | |
137 | struct cdrom_msf0 msf_leadout; | |
138 | struct cdrom_msf0 msf_first; | |
139 | }; | |
140 | ||
141 | struct s_multi { | |
142 | unsigned char multi; | |
143 | struct cdrom_msf0 msf_last; | |
144 | }; | |
145 | ||
146 | struct s_version { | |
147 | unsigned char code; | |
148 | unsigned char ver; | |
149 | }; | |
150 | ||
151 | /* Per drive/controller stuff **************************************/ | |
152 | ||
153 | struct s_drive_stuff { | |
154 | /* waitqueues */ | |
155 | wait_queue_head_t busyq; | |
156 | wait_queue_head_t lockq; | |
157 | wait_queue_head_t sleepq; | |
158 | ||
159 | /* flags */ | |
160 | volatile int introk; /* status of last irq operation */ | |
161 | volatile int busy; /* drive performs an operation */ | |
162 | volatile int lock; /* exclusive usage */ | |
163 | ||
164 | /* cd infos */ | |
165 | struct s_diskinfo di; | |
166 | struct s_multi multi; | |
167 | struct s_subqcode *toc; /* first entry of the toc array */ | |
168 | struct s_subqcode start; | |
169 | struct s_subqcode stop; | |
170 | int xa; /* 1 if xa disk */ | |
171 | int audio; /* 1 if audio disk */ | |
172 | int audiostatus; | |
173 | ||
174 | /* `buffer' control */ | |
175 | volatile int valid; /* pending, ..., values are valid */ | |
176 | volatile int pending; /* next sector to be read */ | |
177 | volatile int low_border; /* first sector not to be skipped direct */ | |
178 | volatile int high_border; /* first sector `out of area' */ | |
179 | #ifdef AK2 | |
180 | volatile int int_err; | |
181 | #endif /* AK2 */ | |
182 | ||
183 | /* adds and odds */ | |
184 | unsigned wreg_data; /* w data */ | |
185 | unsigned wreg_reset; /* w hardware reset */ | |
186 | unsigned wreg_hcon; /* w hardware conf */ | |
187 | unsigned wreg_chn; /* w channel */ | |
188 | unsigned rreg_data; /* r data */ | |
189 | unsigned rreg_status; /* r status */ | |
190 | ||
191 | int irq; /* irq used by this drive */ | |
192 | int present; /* drive present and its capabilities */ | |
193 | unsigned char readcmd; /* read cmd depends on single/double speed */ | |
194 | unsigned char playcmd; /* play should always be single speed */ | |
195 | unsigned int xxx; /* set if changed, reset while open */ | |
196 | unsigned int yyy; /* set if changed, reset by media_changed */ | |
197 | int users; /* keeps track of open/close */ | |
198 | int lastsector; /* last block accessible */ | |
199 | int status; /* last operation's error / status */ | |
200 | int readerrs; /* # of blocks read w/o error */ | |
201 | struct cdrom_device_info info; | |
202 | struct gendisk *disk; | |
203 | }; | |
204 | ||
205 | ||
206 | /* Prototypes ******************************************************/ | |
207 | ||
208 | /* The following prototypes are already declared elsewhere. They are | |
209 | repeated here to show what's going on. And to sense, if they're | |
210 | changed elsewhere. */ | |
211 | ||
75c96f85 | 212 | static int mcdx_init(void); |
1da177e4 LT |
213 | |
214 | static int mcdx_block_open(struct inode *inode, struct file *file) | |
215 | { | |
216 | struct s_drive_stuff *p = inode->i_bdev->bd_disk->private_data; | |
217 | return cdrom_open(&p->info, inode, file); | |
218 | } | |
219 | ||
220 | static int mcdx_block_release(struct inode *inode, struct file *file) | |
221 | { | |
222 | struct s_drive_stuff *p = inode->i_bdev->bd_disk->private_data; | |
223 | return cdrom_release(&p->info, file); | |
224 | } | |
225 | ||
226 | static int mcdx_block_ioctl(struct inode *inode, struct file *file, | |
227 | unsigned cmd, unsigned long arg) | |
228 | { | |
229 | struct s_drive_stuff *p = inode->i_bdev->bd_disk->private_data; | |
230 | return cdrom_ioctl(file, &p->info, inode, cmd, arg); | |
231 | } | |
232 | ||
233 | static int mcdx_block_media_changed(struct gendisk *disk) | |
234 | { | |
235 | struct s_drive_stuff *p = disk->private_data; | |
236 | return cdrom_media_changed(&p->info); | |
237 | } | |
238 | ||
239 | static struct block_device_operations mcdx_bdops = | |
240 | { | |
241 | .owner = THIS_MODULE, | |
242 | .open = mcdx_block_open, | |
243 | .release = mcdx_block_release, | |
244 | .ioctl = mcdx_block_ioctl, | |
245 | .media_changed = mcdx_block_media_changed, | |
246 | }; | |
247 | ||
248 | ||
249 | /* Indirect exported functions. These functions are exported by their | |
250 | addresses, such as mcdx_open and mcdx_close in the | |
251 | structure mcdx_dops. */ | |
252 | ||
253 | /* exported by file_ops */ | |
254 | static int mcdx_open(struct cdrom_device_info *cdi, int purpose); | |
255 | static void mcdx_close(struct cdrom_device_info *cdi); | |
256 | static int mcdx_media_changed(struct cdrom_device_info *cdi, int disc_nr); | |
257 | static int mcdx_tray_move(struct cdrom_device_info *cdi, int position); | |
258 | static int mcdx_lockdoor(struct cdrom_device_info *cdi, int lock); | |
259 | static int mcdx_audio_ioctl(struct cdrom_device_info *cdi, | |
260 | unsigned int cmd, void *arg); | |
261 | ||
262 | /* misc internal support functions */ | |
263 | static void log2msf(unsigned int, struct cdrom_msf0 *); | |
264 | static unsigned int msf2log(const struct cdrom_msf0 *); | |
265 | static unsigned int uint2bcd(unsigned int); | |
266 | static unsigned int bcd2uint(unsigned char); | |
267 | static unsigned port(int *); | |
268 | static int irq(int *); | |
269 | static void mcdx_delay(struct s_drive_stuff *, long jifs); | |
270 | static int mcdx_transfer(struct s_drive_stuff *, char *buf, int sector, | |
271 | int nr_sectors); | |
272 | static int mcdx_xfer(struct s_drive_stuff *, char *buf, int sector, | |
273 | int nr_sectors); | |
274 | ||
275 | static int mcdx_config(struct s_drive_stuff *, int); | |
276 | static int mcdx_requestversion(struct s_drive_stuff *, struct s_version *, | |
277 | int); | |
278 | static int mcdx_stop(struct s_drive_stuff *, int); | |
279 | static int mcdx_hold(struct s_drive_stuff *, int); | |
280 | static int mcdx_reset(struct s_drive_stuff *, enum resetmodes, int); | |
281 | static int mcdx_setdrivemode(struct s_drive_stuff *, enum drivemodes, int); | |
282 | static int mcdx_setdatamode(struct s_drive_stuff *, enum datamodes, int); | |
283 | static int mcdx_requestsubqcode(struct s_drive_stuff *, | |
284 | struct s_subqcode *, int); | |
285 | static int mcdx_requestmultidiskinfo(struct s_drive_stuff *, | |
286 | struct s_multi *, int); | |
287 | static int mcdx_requesttocdata(struct s_drive_stuff *, struct s_diskinfo *, | |
288 | int); | |
289 | static int mcdx_getstatus(struct s_drive_stuff *, int); | |
290 | static int mcdx_getval(struct s_drive_stuff *, int to, int delay, char *); | |
291 | static int mcdx_talk(struct s_drive_stuff *, | |
292 | const unsigned char *cmd, size_t, | |
293 | void *buffer, size_t size, unsigned int timeout, int); | |
294 | static int mcdx_readtoc(struct s_drive_stuff *); | |
295 | static int mcdx_playtrk(struct s_drive_stuff *, const struct cdrom_ti *); | |
296 | static int mcdx_playmsf(struct s_drive_stuff *, const struct cdrom_msf *); | |
297 | static int mcdx_setattentuator(struct s_drive_stuff *, | |
298 | struct cdrom_volctrl *, int); | |
299 | ||
300 | /* static variables ************************************************/ | |
301 | ||
302 | static int mcdx_drive_map[][2] = MCDX_DRIVEMAP; | |
303 | static struct s_drive_stuff *mcdx_stuffp[MCDX_NDRIVES]; | |
304 | static DEFINE_SPINLOCK(mcdx_lock); | |
305 | static struct request_queue *mcdx_queue; | |
306 | ||
307 | /* You can only set the first two pairs, from old MODULE_PARM code. */ | |
308 | static int mcdx_set(const char *val, struct kernel_param *kp) | |
309 | { | |
310 | get_options((char *)val, 4, (int *)mcdx_drive_map); | |
311 | return 0; | |
312 | } | |
313 | module_param_call(mcdx, mcdx_set, NULL, NULL, 0); | |
314 | ||
315 | static struct cdrom_device_ops mcdx_dops = { | |
316 | .open = mcdx_open, | |
317 | .release = mcdx_close, | |
318 | .media_changed = mcdx_media_changed, | |
319 | .tray_move = mcdx_tray_move, | |
320 | .lock_door = mcdx_lockdoor, | |
321 | .audio_ioctl = mcdx_audio_ioctl, | |
322 | .capability = CDC_OPEN_TRAY | CDC_LOCK | CDC_MEDIA_CHANGED | | |
323 | CDC_PLAY_AUDIO | CDC_DRIVE_STATUS, | |
324 | }; | |
325 | ||
326 | /* KERNEL INTERFACE FUNCTIONS **************************************/ | |
327 | ||
328 | ||
329 | static int mcdx_audio_ioctl(struct cdrom_device_info *cdi, | |
330 | unsigned int cmd, void *arg) | |
331 | { | |
332 | struct s_drive_stuff *stuffp = cdi->handle; | |
333 | ||
334 | if (!stuffp->present) | |
335 | return -ENXIO; | |
336 | ||
337 | if (stuffp->xxx) { | |
338 | if (-1 == mcdx_requesttocdata(stuffp, &stuffp->di, 1)) { | |
339 | stuffp->lastsector = -1; | |
340 | } else { | |
341 | stuffp->lastsector = (CD_FRAMESIZE / 512) | |
342 | * msf2log(&stuffp->di.msf_leadout) - 1; | |
343 | } | |
344 | ||
345 | if (stuffp->toc) { | |
346 | kfree(stuffp->toc); | |
347 | stuffp->toc = NULL; | |
348 | if (-1 == mcdx_readtoc(stuffp)) | |
349 | return -1; | |
350 | } | |
351 | ||
352 | stuffp->xxx = 0; | |
353 | } | |
354 | ||
355 | switch (cmd) { | |
356 | case CDROMSTART:{ | |
357 | xtrace(IOCTL, "ioctl() START\n"); | |
358 | /* Spin up the drive. Don't think we can do this. | |
359 | * For now, ignore it. | |
360 | */ | |
361 | return 0; | |
362 | } | |
363 | ||
364 | case CDROMSTOP:{ | |
365 | xtrace(IOCTL, "ioctl() STOP\n"); | |
366 | stuffp->audiostatus = CDROM_AUDIO_INVALID; | |
367 | if (-1 == mcdx_stop(stuffp, 1)) | |
368 | return -EIO; | |
369 | return 0; | |
370 | } | |
371 | ||
372 | case CDROMPLAYTRKIND:{ | |
373 | struct cdrom_ti *ti = (struct cdrom_ti *) arg; | |
374 | ||
375 | xtrace(IOCTL, "ioctl() PLAYTRKIND\n"); | |
376 | if ((ti->cdti_trk0 < stuffp->di.n_first) | |
377 | || (ti->cdti_trk0 > stuffp->di.n_last) | |
378 | || (ti->cdti_trk1 < stuffp->di.n_first)) | |
379 | return -EINVAL; | |
380 | if (ti->cdti_trk1 > stuffp->di.n_last) | |
381 | ti->cdti_trk1 = stuffp->di.n_last; | |
382 | xtrace(PLAYTRK, "ioctl() track %d to %d\n", | |
383 | ti->cdti_trk0, ti->cdti_trk1); | |
384 | return mcdx_playtrk(stuffp, ti); | |
385 | } | |
386 | ||
387 | case CDROMPLAYMSF:{ | |
388 | struct cdrom_msf *msf = (struct cdrom_msf *) arg; | |
389 | ||
390 | xtrace(IOCTL, "ioctl() PLAYMSF\n"); | |
391 | ||
392 | if ((stuffp->audiostatus == CDROM_AUDIO_PLAY) | |
393 | && (-1 == mcdx_hold(stuffp, 1))) | |
394 | return -EIO; | |
395 | ||
396 | msf->cdmsf_min0 = uint2bcd(msf->cdmsf_min0); | |
397 | msf->cdmsf_sec0 = uint2bcd(msf->cdmsf_sec0); | |
398 | msf->cdmsf_frame0 = uint2bcd(msf->cdmsf_frame0); | |
399 | ||
400 | msf->cdmsf_min1 = uint2bcd(msf->cdmsf_min1); | |
401 | msf->cdmsf_sec1 = uint2bcd(msf->cdmsf_sec1); | |
402 | msf->cdmsf_frame1 = uint2bcd(msf->cdmsf_frame1); | |
403 | ||
404 | stuffp->stop.dt.minute = msf->cdmsf_min1; | |
405 | stuffp->stop.dt.second = msf->cdmsf_sec1; | |
406 | stuffp->stop.dt.frame = msf->cdmsf_frame1; | |
407 | ||
408 | return mcdx_playmsf(stuffp, msf); | |
409 | } | |
410 | ||
411 | case CDROMRESUME:{ | |
412 | xtrace(IOCTL, "ioctl() RESUME\n"); | |
413 | return mcdx_playtrk(stuffp, NULL); | |
414 | } | |
415 | ||
416 | case CDROMREADTOCENTRY:{ | |
417 | struct cdrom_tocentry *entry = | |
418 | (struct cdrom_tocentry *) arg; | |
419 | struct s_subqcode *tp = NULL; | |
420 | xtrace(IOCTL, "ioctl() READTOCENTRY\n"); | |
421 | ||
422 | if (-1 == mcdx_readtoc(stuffp)) | |
423 | return -1; | |
424 | if (entry->cdte_track == CDROM_LEADOUT) | |
425 | tp = &stuffp->toc[stuffp->di.n_last - | |
426 | stuffp->di.n_first + 1]; | |
427 | else if (entry->cdte_track > stuffp->di.n_last | |
428 | || entry->cdte_track < stuffp->di.n_first) | |
429 | return -EINVAL; | |
430 | else | |
431 | tp = &stuffp->toc[entry->cdte_track - | |
432 | stuffp->di.n_first]; | |
433 | ||
434 | if (NULL == tp) | |
435 | return -EIO; | |
436 | entry->cdte_adr = tp->control; | |
437 | entry->cdte_ctrl = tp->control >> 4; | |
438 | /* Always return stuff in MSF, and let the Uniform cdrom driver | |
439 | worry about what the user actually wants */ | |
440 | entry->cdte_addr.msf.minute = | |
441 | bcd2uint(tp->dt.minute); | |
442 | entry->cdte_addr.msf.second = | |
443 | bcd2uint(tp->dt.second); | |
444 | entry->cdte_addr.msf.frame = | |
445 | bcd2uint(tp->dt.frame); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | case CDROMSUBCHNL:{ | |
450 | struct cdrom_subchnl *sub = | |
451 | (struct cdrom_subchnl *) arg; | |
452 | struct s_subqcode q; | |
453 | ||
454 | xtrace(IOCTL, "ioctl() SUBCHNL\n"); | |
455 | ||
456 | if (-1 == mcdx_requestsubqcode(stuffp, &q, 2)) | |
457 | return -EIO; | |
458 | ||
459 | xtrace(SUBCHNL, "audiostatus: %x\n", | |
460 | stuffp->audiostatus); | |
461 | sub->cdsc_audiostatus = stuffp->audiostatus; | |
462 | sub->cdsc_adr = q.control; | |
463 | sub->cdsc_ctrl = q.control >> 4; | |
464 | sub->cdsc_trk = bcd2uint(q.tno); | |
465 | sub->cdsc_ind = bcd2uint(q.index); | |
466 | ||
467 | xtrace(SUBCHNL, "trk %d, ind %d\n", | |
468 | sub->cdsc_trk, sub->cdsc_ind); | |
469 | /* Always return stuff in MSF, and let the Uniform cdrom driver | |
470 | worry about what the user actually wants */ | |
471 | sub->cdsc_absaddr.msf.minute = | |
472 | bcd2uint(q.dt.minute); | |
473 | sub->cdsc_absaddr.msf.second = | |
474 | bcd2uint(q.dt.second); | |
475 | sub->cdsc_absaddr.msf.frame = bcd2uint(q.dt.frame); | |
476 | sub->cdsc_reladdr.msf.minute = | |
477 | bcd2uint(q.tt.minute); | |
478 | sub->cdsc_reladdr.msf.second = | |
479 | bcd2uint(q.tt.second); | |
480 | sub->cdsc_reladdr.msf.frame = bcd2uint(q.tt.frame); | |
481 | xtrace(SUBCHNL, | |
482 | "msf: abs %02d:%02d:%02d, rel %02d:%02d:%02d\n", | |
483 | sub->cdsc_absaddr.msf.minute, | |
484 | sub->cdsc_absaddr.msf.second, | |
485 | sub->cdsc_absaddr.msf.frame, | |
486 | sub->cdsc_reladdr.msf.minute, | |
487 | sub->cdsc_reladdr.msf.second, | |
488 | sub->cdsc_reladdr.msf.frame); | |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | case CDROMREADTOCHDR:{ | |
494 | struct cdrom_tochdr *toc = | |
495 | (struct cdrom_tochdr *) arg; | |
496 | ||
497 | xtrace(IOCTL, "ioctl() READTOCHDR\n"); | |
498 | toc->cdth_trk0 = stuffp->di.n_first; | |
499 | toc->cdth_trk1 = stuffp->di.n_last; | |
500 | xtrace(TOCHDR, | |
501 | "ioctl() track0 = %d, track1 = %d\n", | |
502 | stuffp->di.n_first, stuffp->di.n_last); | |
503 | return 0; | |
504 | } | |
505 | ||
506 | case CDROMPAUSE:{ | |
507 | xtrace(IOCTL, "ioctl() PAUSE\n"); | |
508 | if (stuffp->audiostatus != CDROM_AUDIO_PLAY) | |
509 | return -EINVAL; | |
510 | if (-1 == mcdx_stop(stuffp, 1)) | |
511 | return -EIO; | |
512 | stuffp->audiostatus = CDROM_AUDIO_PAUSED; | |
513 | if (-1 == | |
514 | mcdx_requestsubqcode(stuffp, &stuffp->start, | |
515 | 1)) | |
516 | return -EIO; | |
517 | return 0; | |
518 | } | |
519 | ||
520 | case CDROMMULTISESSION:{ | |
521 | struct cdrom_multisession *ms = | |
522 | (struct cdrom_multisession *) arg; | |
523 | xtrace(IOCTL, "ioctl() MULTISESSION\n"); | |
524 | /* Always return stuff in LBA, and let the Uniform cdrom driver | |
525 | worry about what the user actually wants */ | |
526 | ms->addr.lba = msf2log(&stuffp->multi.msf_last); | |
527 | ms->xa_flag = !!stuffp->multi.multi; | |
528 | xtrace(MS, | |
529 | "ioctl() (%d, 0x%08x [%02x:%02x.%02x])\n", | |
530 | ms->xa_flag, ms->addr.lba, | |
531 | stuffp->multi.msf_last.minute, | |
532 | stuffp->multi.msf_last.second, | |
533 | stuffp->multi.msf_last.frame); | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | case CDROMEJECT:{ | |
539 | xtrace(IOCTL, "ioctl() EJECT\n"); | |
540 | if (stuffp->users > 1) | |
541 | return -EBUSY; | |
542 | return (mcdx_tray_move(cdi, 1)); | |
543 | } | |
544 | ||
545 | case CDROMCLOSETRAY:{ | |
546 | xtrace(IOCTL, "ioctl() CDROMCLOSETRAY\n"); | |
547 | return (mcdx_tray_move(cdi, 0)); | |
548 | } | |
549 | ||
550 | case CDROMVOLCTRL:{ | |
551 | struct cdrom_volctrl *volctrl = | |
552 | (struct cdrom_volctrl *) arg; | |
553 | xtrace(IOCTL, "ioctl() VOLCTRL\n"); | |
554 | ||
555 | #if 0 /* not tested! */ | |
556 | /* adjust for the weirdness of workman (md) */ | |
557 | /* can't test it (hs) */ | |
558 | volctrl.channel2 = volctrl.channel1; | |
559 | volctrl.channel1 = volctrl.channel3 = 0x00; | |
560 | #endif | |
561 | return mcdx_setattentuator(stuffp, volctrl, 2); | |
562 | } | |
563 | ||
564 | default: | |
565 | return -EINVAL; | |
566 | } | |
567 | } | |
568 | ||
75c96f85 | 569 | static void do_mcdx_request(request_queue_t * q) |
1da177e4 LT |
570 | { |
571 | struct s_drive_stuff *stuffp; | |
572 | struct request *req; | |
573 | ||
574 | again: | |
575 | ||
576 | req = elv_next_request(q); | |
577 | if (!req) | |
578 | return; | |
579 | ||
580 | stuffp = req->rq_disk->private_data; | |
581 | ||
582 | if (!stuffp->present) { | |
583 | xwarn("do_request(): bad device: %s\n",req->rq_disk->disk_name); | |
584 | xtrace(REQUEST, "end_request(0): bad device\n"); | |
585 | end_request(req, 0); | |
586 | return; | |
587 | } | |
588 | ||
589 | if (stuffp->audio) { | |
590 | xwarn("do_request() attempt to read from audio cd\n"); | |
591 | xtrace(REQUEST, "end_request(0): read from audio\n"); | |
592 | end_request(req, 0); | |
593 | return; | |
594 | } | |
595 | ||
596 | xtrace(REQUEST, "do_request() (%lu + %lu)\n", | |
597 | req->sector, req->nr_sectors); | |
598 | ||
599 | if (req->cmd != READ) { | |
600 | xwarn("do_request(): non-read command to cd!!\n"); | |
601 | xtrace(REQUEST, "end_request(0): write\n"); | |
602 | end_request(req, 0); | |
603 | return; | |
604 | } | |
605 | else { | |
606 | stuffp->status = 0; | |
607 | while (req->nr_sectors) { | |
608 | int i; | |
609 | ||
610 | i = mcdx_transfer(stuffp, | |
611 | req->buffer, | |
612 | req->sector, | |
613 | req->nr_sectors); | |
614 | ||
615 | if (i == -1) { | |
616 | end_request(req, 0); | |
617 | goto again; | |
618 | } | |
619 | req->sector += i; | |
620 | req->nr_sectors -= i; | |
621 | req->buffer += (i * 512); | |
622 | } | |
623 | end_request(req, 1); | |
624 | goto again; | |
625 | ||
626 | xtrace(REQUEST, "end_request(1)\n"); | |
627 | end_request(req, 1); | |
628 | } | |
629 | ||
630 | goto again; | |
631 | } | |
632 | ||
633 | static int mcdx_open(struct cdrom_device_info *cdi, int purpose) | |
634 | { | |
635 | struct s_drive_stuff *stuffp; | |
636 | xtrace(OPENCLOSE, "open()\n"); | |
637 | stuffp = cdi->handle; | |
638 | if (!stuffp->present) | |
639 | return -ENXIO; | |
640 | ||
641 | /* Make the modules looking used ... (thanx bjorn). | |
642 | * But we shouldn't forget to decrement the module counter | |
643 | * on error return */ | |
644 | ||
645 | /* this is only done to test if the drive talks with us */ | |
646 | if (-1 == mcdx_getstatus(stuffp, 1)) | |
647 | return -EIO; | |
648 | ||
649 | if (stuffp->xxx) { | |
650 | ||
651 | xtrace(OPENCLOSE, "open() media changed\n"); | |
652 | stuffp->audiostatus = CDROM_AUDIO_INVALID; | |
653 | stuffp->readcmd = 0; | |
654 | xtrace(OPENCLOSE, "open() Request multisession info\n"); | |
655 | if (-1 == | |
656 | mcdx_requestmultidiskinfo(stuffp, &stuffp->multi, 6)) | |
657 | xinfo("No multidiskinfo\n"); | |
658 | } else { | |
659 | /* multisession ? */ | |
660 | if (!stuffp->multi.multi) | |
661 | stuffp->multi.msf_last.second = 2; | |
662 | ||
663 | xtrace(OPENCLOSE, "open() MS: %d, last @ %02x:%02x.%02x\n", | |
664 | stuffp->multi.multi, | |
665 | stuffp->multi.msf_last.minute, | |
666 | stuffp->multi.msf_last.second, | |
667 | stuffp->multi.msf_last.frame); | |
668 | ||
669 | {; | |
670 | } /* got multisession information */ | |
671 | /* request the disks table of contents (aka diskinfo) */ | |
672 | if (-1 == mcdx_requesttocdata(stuffp, &stuffp->di, 1)) { | |
673 | ||
674 | stuffp->lastsector = -1; | |
675 | ||
676 | } else { | |
677 | ||
678 | stuffp->lastsector = (CD_FRAMESIZE / 512) | |
679 | * msf2log(&stuffp->di.msf_leadout) - 1; | |
680 | ||
681 | xtrace(OPENCLOSE, | |
682 | "open() start %d (%02x:%02x.%02x) %d\n", | |
683 | stuffp->di.n_first, | |
684 | stuffp->di.msf_first.minute, | |
685 | stuffp->di.msf_first.second, | |
686 | stuffp->di.msf_first.frame, | |
687 | msf2log(&stuffp->di.msf_first)); | |
688 | xtrace(OPENCLOSE, | |
689 | "open() last %d (%02x:%02x.%02x) %d\n", | |
690 | stuffp->di.n_last, | |
691 | stuffp->di.msf_leadout.minute, | |
692 | stuffp->di.msf_leadout.second, | |
693 | stuffp->di.msf_leadout.frame, | |
694 | msf2log(&stuffp->di.msf_leadout)); | |
695 | } | |
696 | ||
697 | if (stuffp->toc) { | |
698 | xtrace(MALLOC, "open() free old toc @ %p\n", | |
699 | stuffp->toc); | |
700 | kfree(stuffp->toc); | |
701 | ||
702 | stuffp->toc = NULL; | |
703 | } | |
704 | ||
705 | xtrace(OPENCLOSE, "open() init irq generation\n"); | |
706 | if (-1 == mcdx_config(stuffp, 1)) | |
707 | return -EIO; | |
44456d37 | 708 | #ifdef FALLBACK |
1da177e4 LT |
709 | /* Set the read speed */ |
710 | xwarn("AAA %x AAA\n", stuffp->readcmd); | |
711 | if (stuffp->readerrs) | |
712 | stuffp->readcmd = READ1X; | |
713 | else | |
714 | stuffp->readcmd = | |
715 | stuffp->present | SINGLE ? READ1X : READ2X; | |
716 | xwarn("XXX %x XXX\n", stuffp->readcmd); | |
717 | #else | |
718 | stuffp->readcmd = | |
719 | stuffp->present | SINGLE ? READ1X : READ2X; | |
720 | #endif | |
721 | ||
722 | /* try to get the first sector, iff any ... */ | |
723 | if (stuffp->lastsector >= 0) { | |
724 | char buf[512]; | |
725 | int ans; | |
726 | int tries; | |
727 | ||
728 | stuffp->xa = 0; | |
729 | stuffp->audio = 0; | |
730 | ||
731 | for (tries = 6; tries; tries--) { | |
732 | ||
733 | stuffp->introk = 1; | |
734 | ||
735 | xtrace(OPENCLOSE, "open() try as %s\n", | |
736 | stuffp->xa ? "XA" : "normal"); | |
737 | /* set data mode */ | |
738 | if (-1 == (ans = mcdx_setdatamode(stuffp, | |
739 | stuffp-> | |
740 | xa ? | |
741 | MODE2 : | |
742 | MODE1, | |
743 | 1))) { | |
744 | /* return -EIO; */ | |
745 | stuffp->xa = 0; | |
746 | break; | |
747 | } | |
748 | ||
749 | if ((stuffp->audio = e_audio(ans))) | |
750 | break; | |
751 | ||
752 | while (0 == | |
753 | (ans = | |
754 | mcdx_transfer(stuffp, buf, 0, 1))); | |
755 | ||
756 | if (ans == 1) | |
757 | break; | |
758 | stuffp->xa = !stuffp->xa; | |
759 | } | |
760 | } | |
761 | /* xa disks will be read in raw mode, others not */ | |
762 | if (-1 == mcdx_setdrivemode(stuffp, | |
763 | stuffp->xa ? RAW : COOKED, | |
764 | 1)) | |
765 | return -EIO; | |
766 | if (stuffp->audio) { | |
767 | xinfo("open() audio disk found\n"); | |
768 | } else if (stuffp->lastsector >= 0) { | |
769 | xinfo("open() %s%s disk found\n", | |
770 | stuffp->xa ? "XA / " : "", | |
771 | stuffp->multi. | |
772 | multi ? "Multi Session" : "Single Session"); | |
773 | } | |
774 | } | |
775 | stuffp->xxx = 0; | |
776 | stuffp->users++; | |
777 | return 0; | |
778 | } | |
779 | ||
780 | static void mcdx_close(struct cdrom_device_info *cdi) | |
781 | { | |
782 | struct s_drive_stuff *stuffp; | |
783 | ||
784 | xtrace(OPENCLOSE, "close()\n"); | |
785 | ||
786 | stuffp = cdi->handle; | |
787 | ||
788 | --stuffp->users; | |
789 | } | |
790 | ||
791 | static int mcdx_media_changed(struct cdrom_device_info *cdi, int disc_nr) | |
792 | /* Return: 1 if media changed since last call to this function | |
793 | 0 otherwise */ | |
794 | { | |
795 | struct s_drive_stuff *stuffp; | |
796 | ||
797 | xinfo("mcdx_media_changed called for device %s\n", cdi->name); | |
798 | ||
799 | stuffp = cdi->handle; | |
800 | mcdx_getstatus(stuffp, 1); | |
801 | ||
802 | if (stuffp->yyy == 0) | |
803 | return 0; | |
804 | ||
805 | stuffp->yyy = 0; | |
806 | return 1; | |
807 | } | |
808 | ||
809 | #ifndef MODULE | |
810 | static int __init mcdx_setup(char *str) | |
811 | { | |
812 | int pi[4]; | |
813 | (void) get_options(str, ARRAY_SIZE(pi), pi); | |
814 | ||
815 | if (pi[0] > 0) | |
816 | mcdx_drive_map[0][0] = pi[1]; | |
817 | if (pi[0] > 1) | |
818 | mcdx_drive_map[0][1] = pi[2]; | |
819 | return 1; | |
820 | } | |
821 | ||
822 | __setup("mcdx=", mcdx_setup); | |
823 | ||
824 | #endif | |
825 | ||
826 | /* DIRTY PART ******************************************************/ | |
827 | ||
828 | static void mcdx_delay(struct s_drive_stuff *stuff, long jifs) | |
829 | /* This routine is used for sleeping. | |
830 | * A jifs value <0 means NO sleeping, | |
831 | * =0 means minimal sleeping (let the kernel | |
832 | * run for other processes) | |
833 | * >0 means at least sleep for that amount. | |
834 | * May be we could use a simple count loop w/ jumps to itself, but | |
835 | * I wanna make this independent of cpu speed. [1 jiffy is 1/HZ] sec */ | |
836 | { | |
837 | if (jifs < 0) | |
838 | return; | |
839 | ||
840 | xtrace(SLEEP, "*** delay: sleepq\n"); | |
841 | interruptible_sleep_on_timeout(&stuff->sleepq, jifs); | |
842 | xtrace(SLEEP, "delay awoken\n"); | |
843 | if (signal_pending(current)) { | |
844 | xtrace(SLEEP, "got signal\n"); | |
845 | } | |
846 | } | |
847 | ||
848 | static irqreturn_t mcdx_intr(int irq, void *dev_id, struct pt_regs *regs) | |
849 | { | |
850 | struct s_drive_stuff *stuffp = dev_id; | |
851 | unsigned char b; | |
852 | ||
853 | if (stuffp == NULL) { | |
854 | xwarn("mcdx: no device for intr %d\n", irq); | |
855 | return IRQ_NONE; | |
856 | } | |
857 | #ifdef AK2 | |
858 | if (!stuffp->busy && stuffp->pending) | |
859 | stuffp->int_err = 1; | |
860 | ||
861 | #endif /* AK2 */ | |
862 | /* get the interrupt status */ | |
863 | b = inb(stuffp->rreg_status); | |
864 | stuffp->introk = ~b & MCDX_RBIT_DTEN; | |
865 | ||
866 | /* NOTE: We only should get interrupts if the data we | |
867 | * requested are ready to transfer. | |
868 | * But the drive seems to generate ``asynchronous'' interrupts | |
869 | * on several error conditions too. (Despite the err int enable | |
870 | * setting during initialisation) */ | |
871 | ||
872 | /* if not ok, read the next byte as the drives status */ | |
873 | if (!stuffp->introk) { | |
874 | xtrace(IRQ, "intr() irq %d hw status 0x%02x\n", irq, b); | |
875 | if (~b & MCDX_RBIT_STEN) { | |
876 | xinfo("intr() irq %d status 0x%02x\n", | |
877 | irq, inb(stuffp->rreg_data)); | |
878 | } else { | |
879 | xinfo("intr() irq %d ambiguous hw status\n", irq); | |
880 | } | |
881 | } else { | |
882 | xtrace(IRQ, "irq() irq %d ok, status %02x\n", irq, b); | |
883 | } | |
884 | ||
885 | stuffp->busy = 0; | |
886 | wake_up_interruptible(&stuffp->busyq); | |
887 | return IRQ_HANDLED; | |
888 | } | |
889 | ||
890 | ||
891 | static int mcdx_talk(struct s_drive_stuff *stuffp, | |
892 | const unsigned char *cmd, size_t cmdlen, | |
893 | void *buffer, size_t size, unsigned int timeout, int tries) | |
894 | /* Send a command to the drive, wait for the result. | |
895 | * returns -1 on timeout, drive status otherwise | |
896 | * If buffer is not zero, the result (length size) is stored there. | |
897 | * If buffer is zero the size should be the number of bytes to read | |
898 | * from the drive. These bytes are discarded. | |
899 | */ | |
900 | { | |
901 | int st; | |
902 | char c; | |
903 | int discard; | |
904 | ||
905 | /* Somebody wants the data read? */ | |
906 | if ((discard = (buffer == NULL))) | |
907 | buffer = &c; | |
908 | ||
909 | while (stuffp->lock) { | |
910 | xtrace(SLEEP, "*** talk: lockq\n"); | |
911 | interruptible_sleep_on(&stuffp->lockq); | |
912 | xtrace(SLEEP, "talk: awoken\n"); | |
913 | } | |
914 | ||
915 | stuffp->lock = 1; | |
916 | ||
917 | /* An operation other then reading data destroys the | |
918 | * data already requested and remembered in stuffp->request, ... */ | |
919 | stuffp->valid = 0; | |
920 | ||
921 | #if MCDX_DEBUG & TALK | |
922 | { | |
923 | unsigned char i; | |
924 | xtrace(TALK, | |
925 | "talk() %d / %d tries, res.size %d, command 0x%02x", | |
926 | tries, timeout, size, (unsigned char) cmd[0]); | |
927 | for (i = 1; i < cmdlen; i++) | |
928 | xtrace(TALK, " 0x%02x", cmd[i]); | |
929 | xtrace(TALK, "\n"); | |
930 | } | |
931 | #endif | |
932 | ||
933 | /* give up if all tries are done (bad) or if the status | |
934 | * st != -1 (good) */ | |
935 | for (st = -1; st == -1 && tries; tries--) { | |
936 | ||
937 | char *bp = (char *) buffer; | |
938 | size_t sz = size; | |
939 | ||
940 | outsb(stuffp->wreg_data, cmd, cmdlen); | |
941 | xtrace(TALK, "talk() command sent\n"); | |
942 | ||
943 | /* get the status byte */ | |
944 | if (-1 == mcdx_getval(stuffp, timeout, 0, bp)) { | |
945 | xinfo("talk() %02x timed out (status), %d tr%s left\n", | |
946 | cmd[0], tries - 1, tries == 2 ? "y" : "ies"); | |
947 | continue; | |
948 | } | |
949 | st = *bp; | |
950 | sz--; | |
951 | if (!discard) | |
952 | bp++; | |
953 | ||
954 | xtrace(TALK, "talk() got status 0x%02x\n", st); | |
955 | ||
956 | /* command error? */ | |
957 | if (e_cmderr(st)) { | |
958 | xwarn("command error cmd = %02x %s \n", | |
959 | cmd[0], cmdlen > 1 ? "..." : ""); | |
960 | st = -1; | |
961 | continue; | |
962 | } | |
963 | ||
964 | /* audio status? */ | |
965 | if (stuffp->audiostatus == CDROM_AUDIO_INVALID) | |
966 | stuffp->audiostatus = | |
967 | e_audiobusy(st) ? CDROM_AUDIO_PLAY : | |
968 | CDROM_AUDIO_NO_STATUS; | |
969 | else if (stuffp->audiostatus == CDROM_AUDIO_PLAY | |
970 | && e_audiobusy(st) == 0) | |
971 | stuffp->audiostatus = CDROM_AUDIO_COMPLETED; | |
972 | ||
973 | /* media change? */ | |
974 | if (e_changed(st)) { | |
975 | xinfo("talk() media changed\n"); | |
976 | stuffp->xxx = stuffp->yyy = 1; | |
977 | } | |
978 | ||
979 | /* now actually get the data */ | |
980 | while (sz--) { | |
981 | if (-1 == mcdx_getval(stuffp, timeout, 0, bp)) { | |
982 | xinfo("talk() %02x timed out (data), %d tr%s left\n", | |
983 | cmd[0], tries - 1, | |
984 | tries == 2 ? "y" : "ies"); | |
985 | st = -1; | |
986 | break; | |
987 | } | |
988 | if (!discard) | |
989 | bp++; | |
990 | xtrace(TALK, "talk() got 0x%02x\n", *(bp - 1)); | |
991 | } | |
992 | } | |
993 | ||
994 | #if !MCDX_QUIET | |
995 | if (!tries && st == -1) | |
996 | xinfo("talk() giving up\n"); | |
997 | #endif | |
998 | ||
999 | stuffp->lock = 0; | |
1000 | wake_up_interruptible(&stuffp->lockq); | |
1001 | ||
1002 | xtrace(TALK, "talk() done with 0x%02x\n", st); | |
1003 | return st; | |
1004 | } | |
1005 | ||
1006 | /* MODULE STUFF ***********************************************************/ | |
1007 | ||
cad2af5e | 1008 | static int __init __mcdx_init(void) |
1da177e4 LT |
1009 | { |
1010 | int i; | |
1011 | int drives = 0; | |
1012 | ||
1013 | mcdx_init(); | |
1014 | for (i = 0; i < MCDX_NDRIVES; i++) { | |
1015 | if (mcdx_stuffp[i]) { | |
1016 | xtrace(INIT, "init_module() drive %d stuff @ %p\n", | |
1017 | i, mcdx_stuffp[i]); | |
1018 | drives++; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | if (!drives) | |
1023 | return -EIO; | |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
75c96f85 | 1028 | static void __exit mcdx_exit(void) |
1da177e4 LT |
1029 | { |
1030 | int i; | |
1031 | ||
1032 | xinfo("cleanup_module called\n"); | |
1033 | ||
1034 | for (i = 0; i < MCDX_NDRIVES; i++) { | |
1035 | struct s_drive_stuff *stuffp = mcdx_stuffp[i]; | |
1036 | if (!stuffp) | |
1037 | continue; | |
1038 | del_gendisk(stuffp->disk); | |
1039 | if (unregister_cdrom(&stuffp->info)) { | |
1040 | printk(KERN_WARNING "Can't unregister cdrom mcdx\n"); | |
1041 | continue; | |
1042 | } | |
1043 | put_disk(stuffp->disk); | |
1044 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1045 | free_irq(stuffp->irq, NULL); | |
1046 | if (stuffp->toc) { | |
1047 | xtrace(MALLOC, "cleanup_module() free toc @ %p\n", | |
1048 | stuffp->toc); | |
1049 | kfree(stuffp->toc); | |
1050 | } | |
1051 | xtrace(MALLOC, "cleanup_module() free stuffp @ %p\n", | |
1052 | stuffp); | |
1053 | mcdx_stuffp[i] = NULL; | |
1054 | kfree(stuffp); | |
1055 | } | |
1056 | ||
1057 | if (unregister_blkdev(MAJOR_NR, "mcdx") != 0) { | |
1058 | xwarn("cleanup() unregister_blkdev() failed\n"); | |
1059 | } | |
1060 | blk_cleanup_queue(mcdx_queue); | |
1061 | #if !MCDX_QUIET | |
1062 | else | |
1063 | xinfo("cleanup() succeeded\n"); | |
1064 | #endif | |
1065 | } | |
1066 | ||
1067 | #ifdef MODULE | |
1068 | module_init(__mcdx_init); | |
1069 | #endif | |
1070 | module_exit(mcdx_exit); | |
1071 | ||
1072 | ||
1073 | /* Support functions ************************************************/ | |
1074 | ||
75c96f85 | 1075 | static int __init mcdx_init_drive(int drive) |
1da177e4 LT |
1076 | { |
1077 | struct s_version version; | |
1078 | struct gendisk *disk; | |
1079 | struct s_drive_stuff *stuffp; | |
1080 | int size = sizeof(*stuffp); | |
1081 | char msg[80]; | |
1082 | ||
1083 | xtrace(INIT, "init() try drive %d\n", drive); | |
1084 | ||
1085 | xtrace(INIT, "kmalloc space for stuffpt's\n"); | |
1086 | xtrace(MALLOC, "init() malloc %d bytes\n", size); | |
5c857eeb | 1087 | if (!(stuffp = kzalloc(size, GFP_KERNEL))) { |
1da177e4 LT |
1088 | xwarn("init() malloc failed\n"); |
1089 | return 1; | |
1090 | } | |
1091 | ||
1092 | disk = alloc_disk(1); | |
1093 | if (!disk) { | |
1094 | xwarn("init() malloc failed\n"); | |
1095 | kfree(stuffp); | |
1096 | return 1; | |
1097 | } | |
1098 | ||
1099 | xtrace(INIT, "init() got %d bytes for drive stuff @ %p\n", | |
1100 | sizeof(*stuffp), stuffp); | |
1101 | ||
1102 | /* set default values */ | |
1da177e4 LT |
1103 | stuffp->present = 0; /* this should be 0 already */ |
1104 | stuffp->toc = NULL; /* this should be NULL already */ | |
1105 | ||
1106 | /* setup our irq and i/o addresses */ | |
1107 | stuffp->irq = irq(mcdx_drive_map[drive]); | |
1108 | stuffp->wreg_data = stuffp->rreg_data = port(mcdx_drive_map[drive]); | |
1109 | stuffp->wreg_reset = stuffp->rreg_status = stuffp->wreg_data + 1; | |
1110 | stuffp->wreg_hcon = stuffp->wreg_reset + 1; | |
1111 | stuffp->wreg_chn = stuffp->wreg_hcon + 1; | |
1112 | ||
1113 | init_waitqueue_head(&stuffp->busyq); | |
1114 | init_waitqueue_head(&stuffp->lockq); | |
1115 | init_waitqueue_head(&stuffp->sleepq); | |
1116 | ||
1117 | /* check if i/o addresses are available */ | |
1118 | if (!request_region(stuffp->wreg_data, MCDX_IO_SIZE, "mcdx")) { | |
1119 | xwarn("0x%03x,%d: Init failed. " | |
1120 | "I/O ports (0x%03x..0x%03x) already in use.\n", | |
1121 | stuffp->wreg_data, stuffp->irq, | |
1122 | stuffp->wreg_data, | |
1123 | stuffp->wreg_data + MCDX_IO_SIZE - 1); | |
1124 | xtrace(MALLOC, "init() free stuffp @ %p\n", stuffp); | |
1125 | kfree(stuffp); | |
1126 | put_disk(disk); | |
1127 | xtrace(INIT, "init() continue at next drive\n"); | |
1128 | return 0; /* next drive */ | |
1129 | } | |
1130 | ||
1131 | xtrace(INIT, "init() i/o port is available at 0x%03x\n" | |
1132 | stuffp->wreg_data); | |
1133 | xtrace(INIT, "init() hardware reset\n"); | |
1134 | mcdx_reset(stuffp, HARD, 1); | |
1135 | ||
1136 | xtrace(INIT, "init() get version\n"); | |
1137 | if (-1 == mcdx_requestversion(stuffp, &version, 4)) { | |
1138 | /* failed, next drive */ | |
1139 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1140 | xwarn("%s=0x%03x,%d: Init failed. Can't get version.\n", | |
1141 | MCDX, stuffp->wreg_data, stuffp->irq); | |
1142 | xtrace(MALLOC, "init() free stuffp @ %p\n", stuffp); | |
1143 | kfree(stuffp); | |
1144 | put_disk(disk); | |
1145 | xtrace(INIT, "init() continue at next drive\n"); | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | switch (version.code) { | |
1150 | case 'D': | |
1151 | stuffp->readcmd = READ2X; | |
1152 | stuffp->present = DOUBLE | DOOR | MULTI; | |
1153 | break; | |
1154 | case 'F': | |
1155 | stuffp->readcmd = READ1X; | |
1156 | stuffp->present = SINGLE | DOOR | MULTI; | |
1157 | break; | |
1158 | case 'M': | |
1159 | stuffp->readcmd = READ1X; | |
1160 | stuffp->present = SINGLE; | |
1161 | break; | |
1162 | default: | |
1163 | stuffp->present = 0; | |
1164 | break; | |
1165 | } | |
1166 | ||
1167 | stuffp->playcmd = READ1X; | |
1168 | ||
1169 | if (!stuffp->present) { | |
1170 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1171 | xwarn("%s=0x%03x,%d: Init failed. No Mitsumi CD-ROM?.\n", | |
1172 | MCDX, stuffp->wreg_data, stuffp->irq); | |
1173 | kfree(stuffp); | |
1174 | put_disk(disk); | |
1175 | return 0; /* next drive */ | |
1176 | } | |
1177 | ||
1178 | xtrace(INIT, "init() register blkdev\n"); | |
1179 | if (register_blkdev(MAJOR_NR, "mcdx")) { | |
1180 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1181 | kfree(stuffp); | |
1182 | put_disk(disk); | |
1183 | return 1; | |
1184 | } | |
1185 | ||
1186 | mcdx_queue = blk_init_queue(do_mcdx_request, &mcdx_lock); | |
1187 | if (!mcdx_queue) { | |
1188 | unregister_blkdev(MAJOR_NR, "mcdx"); | |
1189 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1190 | kfree(stuffp); | |
1191 | put_disk(disk); | |
1192 | return 1; | |
1193 | } | |
1194 | ||
1195 | xtrace(INIT, "init() subscribe irq and i/o\n"); | |
dace1453 | 1196 | if (request_irq(stuffp->irq, mcdx_intr, IRQF_DISABLED, "mcdx", stuffp)) { |
1da177e4 LT |
1197 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); |
1198 | xwarn("%s=0x%03x,%d: Init failed. Can't get irq (%d).\n", | |
1199 | MCDX, stuffp->wreg_data, stuffp->irq, stuffp->irq); | |
1200 | stuffp->irq = 0; | |
1201 | blk_cleanup_queue(mcdx_queue); | |
1202 | kfree(stuffp); | |
1203 | put_disk(disk); | |
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | xtrace(INIT, "init() get garbage\n"); | |
1208 | { | |
1209 | int i; | |
1210 | mcdx_delay(stuffp, HZ / 2); | |
1211 | for (i = 100; i; i--) | |
1212 | (void) inb(stuffp->rreg_status); | |
1213 | } | |
1214 | ||
1215 | ||
44456d37 | 1216 | #ifdef WE_KNOW_WHY |
1da177e4 LT |
1217 | /* irq 11 -> channel register */ |
1218 | outb(0x50, stuffp->wreg_chn); | |
1219 | #endif | |
1220 | ||
1221 | xtrace(INIT, "init() set non dma but irq mode\n"); | |
1222 | mcdx_config(stuffp, 1); | |
1223 | ||
1224 | stuffp->info.ops = &mcdx_dops; | |
1225 | stuffp->info.speed = 2; | |
1226 | stuffp->info.capacity = 1; | |
1227 | stuffp->info.handle = stuffp; | |
1228 | sprintf(stuffp->info.name, "mcdx%d", drive); | |
1229 | disk->major = MAJOR_NR; | |
1230 | disk->first_minor = drive; | |
1231 | strcpy(disk->disk_name, stuffp->info.name); | |
1232 | disk->fops = &mcdx_bdops; | |
1233 | disk->flags = GENHD_FL_CD; | |
1234 | stuffp->disk = disk; | |
1235 | ||
1236 | sprintf(msg, " mcdx: Mitsumi CD-ROM installed at 0x%03x, irq %d." | |
1237 | " (Firmware version %c %x)\n", | |
1238 | stuffp->wreg_data, stuffp->irq, version.code, version.ver); | |
1239 | mcdx_stuffp[drive] = stuffp; | |
1240 | xtrace(INIT, "init() mcdx_stuffp[%d] = %p\n", drive, stuffp); | |
1241 | if (register_cdrom(&stuffp->info) != 0) { | |
1242 | printk("Cannot register Mitsumi CD-ROM!\n"); | |
1243 | free_irq(stuffp->irq, NULL); | |
1244 | release_region(stuffp->wreg_data, MCDX_IO_SIZE); | |
1245 | kfree(stuffp); | |
1246 | put_disk(disk); | |
1247 | if (unregister_blkdev(MAJOR_NR, "mcdx") != 0) | |
1248 | xwarn("cleanup() unregister_blkdev() failed\n"); | |
1249 | blk_cleanup_queue(mcdx_queue); | |
1250 | return 2; | |
1251 | } | |
1252 | disk->private_data = stuffp; | |
1253 | disk->queue = mcdx_queue; | |
1254 | add_disk(disk); | |
1255 | printk(msg); | |
1256 | return 0; | |
1257 | } | |
1258 | ||
75c96f85 | 1259 | static int __init mcdx_init(void) |
1da177e4 LT |
1260 | { |
1261 | int drive; | |
1262 | xwarn("Version 2.14(hs) \n"); | |
1263 | ||
1264 | xwarn("$Id: mcdx.c,v 1.21 1997/01/26 07:12:59 davem Exp $\n"); | |
1265 | ||
1266 | /* zero the pointer array */ | |
1267 | for (drive = 0; drive < MCDX_NDRIVES; drive++) | |
1268 | mcdx_stuffp[drive] = NULL; | |
1269 | ||
1270 | /* do the initialisation */ | |
1271 | for (drive = 0; drive < MCDX_NDRIVES; drive++) { | |
1272 | switch (mcdx_init_drive(drive)) { | |
1273 | case 2: | |
1274 | return -EIO; | |
1275 | case 1: | |
1276 | break; | |
1277 | } | |
1278 | } | |
1279 | return 0; | |
1280 | } | |
1281 | ||
1282 | static int mcdx_transfer(struct s_drive_stuff *stuffp, | |
1283 | char *p, int sector, int nr_sectors) | |
1284 | /* This seems to do the actually transfer. But it does more. It | |
1285 | keeps track of errors occurred and will (if possible) fall back | |
1286 | to single speed on error. | |
1287 | Return: -1 on timeout or other error | |
1288 | else status byte (as in stuff->st) */ | |
1289 | { | |
1290 | int ans; | |
1291 | ||
1292 | ans = mcdx_xfer(stuffp, p, sector, nr_sectors); | |
1293 | return ans; | |
44456d37 | 1294 | #ifdef FALLBACK |
1da177e4 LT |
1295 | if (-1 == ans) |
1296 | stuffp->readerrs++; | |
1297 | else | |
1298 | return ans; | |
1299 | ||
1300 | if (stuffp->readerrs && stuffp->readcmd == READ1X) { | |
1301 | xwarn("XXX Already reading 1x -- no chance\n"); | |
1302 | return -1; | |
1303 | } | |
1304 | ||
1305 | xwarn("XXX Fallback to 1x\n"); | |
1306 | ||
1307 | stuffp->readcmd = READ1X; | |
1308 | return mcdx_transfer(stuffp, p, sector, nr_sectors); | |
1309 | #endif | |
1310 | ||
1311 | } | |
1312 | ||
1313 | ||
1314 | static int mcdx_xfer(struct s_drive_stuff *stuffp, | |
1315 | char *p, int sector, int nr_sectors) | |
1316 | /* This does actually the transfer from the drive. | |
1317 | Return: -1 on timeout or other error | |
1318 | else status byte (as in stuff->st) */ | |
1319 | { | |
1320 | int border; | |
1321 | int done = 0; | |
1322 | long timeout; | |
1323 | ||
1324 | if (stuffp->audio) { | |
1325 | xwarn("Attempt to read from audio CD.\n"); | |
1326 | return -1; | |
1327 | } | |
1328 | ||
1329 | if (!stuffp->readcmd) { | |
1330 | xinfo("Can't transfer from missing disk.\n"); | |
1331 | return -1; | |
1332 | } | |
1333 | ||
1334 | while (stuffp->lock) { | |
1335 | interruptible_sleep_on(&stuffp->lockq); | |
1336 | } | |
1337 | ||
1338 | if (stuffp->valid && (sector >= stuffp->pending) | |
1339 | && (sector < stuffp->low_border)) { | |
1340 | ||
1341 | /* All (or at least a part of the sectors requested) seems | |
1342 | * to be already requested, so we don't need to bother the | |
1343 | * drive with new requests ... | |
1344 | * Wait for the drive become idle, but first | |
1345 | * check for possible occurred errors --- the drive | |
1346 | * seems to report them asynchronously */ | |
1347 | ||
1348 | ||
1349 | border = stuffp->high_border < (border = | |
1350 | sector + nr_sectors) | |
1351 | ? stuffp->high_border : border; | |
1352 | ||
1353 | stuffp->lock = current->pid; | |
1354 | ||
1355 | do { | |
1356 | ||
1357 | while (stuffp->busy) { | |
1358 | ||
1359 | timeout = | |
1360 | interruptible_sleep_on_timeout | |
1361 | (&stuffp->busyq, 5 * HZ); | |
1362 | ||
1363 | if (!stuffp->introk) { | |
1364 | xtrace(XFER, | |
1365 | "error via interrupt\n"); | |
1366 | } else if (!timeout) { | |
1367 | xtrace(XFER, "timeout\n"); | |
1368 | } else if (signal_pending(current)) { | |
1369 | xtrace(XFER, "signal\n"); | |
1370 | } else | |
1371 | continue; | |
1372 | ||
1373 | stuffp->lock = 0; | |
1374 | stuffp->busy = 0; | |
1375 | stuffp->valid = 0; | |
1376 | ||
1377 | wake_up_interruptible(&stuffp->lockq); | |
1378 | xtrace(XFER, "transfer() done (-1)\n"); | |
1379 | return -1; | |
1380 | } | |
1381 | ||
1382 | /* check if we need to set the busy flag (as we | |
1383 | * expect an interrupt */ | |
1384 | stuffp->busy = (3 == (stuffp->pending & 3)); | |
1385 | ||
1386 | /* Test if it's the first sector of a block, | |
1387 | * there we have to skip some bytes as we read raw data */ | |
1388 | if (stuffp->xa && (0 == (stuffp->pending & 3))) { | |
1389 | const int HEAD = | |
1390 | CD_FRAMESIZE_RAW - CD_XA_TAIL - | |
1391 | CD_FRAMESIZE; | |
1392 | insb(stuffp->rreg_data, p, HEAD); | |
1393 | } | |
1394 | ||
1395 | /* now actually read the data */ | |
1396 | insb(stuffp->rreg_data, p, 512); | |
1397 | ||
1398 | /* test if it's the last sector of a block, | |
1399 | * if so, we have to handle XA special */ | |
1400 | if ((3 == (stuffp->pending & 3)) && stuffp->xa) { | |
1401 | char dummy[CD_XA_TAIL]; | |
1402 | insb(stuffp->rreg_data, &dummy[0], CD_XA_TAIL); | |
1403 | } | |
1404 | ||
1405 | if (stuffp->pending == sector) { | |
1406 | p += 512; | |
1407 | done++; | |
1408 | sector++; | |
1409 | } | |
1410 | } while (++(stuffp->pending) < border); | |
1411 | ||
1412 | stuffp->lock = 0; | |
1413 | wake_up_interruptible(&stuffp->lockq); | |
1414 | ||
1415 | } else { | |
1416 | ||
1417 | /* The requested sector(s) is/are out of the | |
1418 | * already requested range, so we have to bother the drive | |
1419 | * with a new request. */ | |
1420 | ||
1421 | static unsigned char cmd[] = { | |
1422 | 0, | |
1423 | 0, 0, 0, | |
1424 | 0, 0, 0 | |
1425 | }; | |
1426 | ||
1427 | cmd[0] = stuffp->readcmd; | |
1428 | ||
1429 | /* The numbers held in ->pending, ..., should be valid */ | |
1430 | stuffp->valid = 1; | |
1431 | stuffp->pending = sector & ~3; | |
1432 | ||
1433 | /* do some sanity checks */ | |
1434 | if (stuffp->pending > stuffp->lastsector) { | |
1435 | xwarn | |
1436 | ("transfer() sector %d from nirvana requested.\n", | |
1437 | stuffp->pending); | |
1438 | stuffp->status = MCDX_ST_EOM; | |
1439 | stuffp->valid = 0; | |
1440 | xtrace(XFER, "transfer() done (-1)\n"); | |
1441 | return -1; | |
1442 | } | |
1443 | ||
1444 | if ((stuffp->low_border = stuffp->pending + DIRECT_SIZE) | |
1445 | > stuffp->lastsector + 1) { | |
1446 | xtrace(XFER, "cut low_border\n"); | |
1447 | stuffp->low_border = stuffp->lastsector + 1; | |
1448 | } | |
1449 | if ((stuffp->high_border = stuffp->pending + REQUEST_SIZE) | |
1450 | > stuffp->lastsector + 1) { | |
1451 | xtrace(XFER, "cut high_border\n"); | |
1452 | stuffp->high_border = stuffp->lastsector + 1; | |
1453 | } | |
1454 | ||
1455 | { /* Convert the sector to be requested to MSF format */ | |
1456 | struct cdrom_msf0 pending; | |
1457 | log2msf(stuffp->pending / 4, &pending); | |
1458 | cmd[1] = pending.minute; | |
1459 | cmd[2] = pending.second; | |
1460 | cmd[3] = pending.frame; | |
1461 | } | |
1462 | ||
1463 | cmd[6] = | |
1464 | (unsigned | |
1465 | char) ((stuffp->high_border - stuffp->pending) / 4); | |
1466 | xtrace(XFER, "[%2d]\n", cmd[6]); | |
1467 | ||
1468 | stuffp->busy = 1; | |
1469 | /* Now really issue the request command */ | |
1470 | outsb(stuffp->wreg_data, cmd, sizeof cmd); | |
1471 | ||
1472 | } | |
1473 | #ifdef AK2 | |
1474 | if (stuffp->int_err) { | |
1475 | stuffp->valid = 0; | |
1476 | stuffp->int_err = 0; | |
1477 | return -1; | |
1478 | } | |
1479 | #endif /* AK2 */ | |
1480 | ||
1481 | stuffp->low_border = (stuffp->low_border += | |
1482 | done) < | |
1483 | stuffp->high_border ? stuffp->low_border : stuffp->high_border; | |
1484 | ||
1485 | return done; | |
1486 | } | |
1487 | ||
1488 | ||
1489 | /* Access to elements of the mcdx_drive_map members */ | |
1490 | ||
1491 | static unsigned port(int *ip) | |
1492 | { | |
1493 | return ip[0]; | |
1494 | } | |
1495 | static int irq(int *ip) | |
1496 | { | |
1497 | return ip[1]; | |
1498 | } | |
1499 | ||
1500 | /* Misc number converters */ | |
1501 | ||
1502 | static unsigned int bcd2uint(unsigned char c) | |
1503 | { | |
1504 | return (c >> 4) * 10 + (c & 0x0f); | |
1505 | } | |
1506 | ||
1507 | static unsigned int uint2bcd(unsigned int ival) | |
1508 | { | |
1509 | return ((ival / 10) << 4) | (ival % 10); | |
1510 | } | |
1511 | ||
1512 | static void log2msf(unsigned int l, struct cdrom_msf0 *pmsf) | |
1513 | { | |
1514 | l += CD_MSF_OFFSET; | |
1515 | pmsf->minute = uint2bcd(l / 4500), l %= 4500; | |
1516 | pmsf->second = uint2bcd(l / 75); | |
1517 | pmsf->frame = uint2bcd(l % 75); | |
1518 | } | |
1519 | ||
1520 | static unsigned int msf2log(const struct cdrom_msf0 *pmsf) | |
1521 | { | |
1522 | return bcd2uint(pmsf->frame) | |
1523 | + bcd2uint(pmsf->second) * 75 | |
1524 | + bcd2uint(pmsf->minute) * 4500 - CD_MSF_OFFSET; | |
1525 | } | |
1526 | ||
1527 | int mcdx_readtoc(struct s_drive_stuff *stuffp) | |
1528 | /* Read the toc entries from the CD, | |
1529 | * Return: -1 on failure, else 0 */ | |
1530 | { | |
1531 | ||
1532 | if (stuffp->toc) { | |
1533 | xtrace(READTOC, "ioctl() toc already read\n"); | |
1534 | return 0; | |
1535 | } | |
1536 | ||
1537 | xtrace(READTOC, "ioctl() readtoc for %d tracks\n", | |
1538 | stuffp->di.n_last - stuffp->di.n_first + 1); | |
1539 | ||
1540 | if (-1 == mcdx_hold(stuffp, 1)) | |
1541 | return -1; | |
1542 | ||
1543 | xtrace(READTOC, "ioctl() tocmode\n"); | |
1544 | if (-1 == mcdx_setdrivemode(stuffp, TOC, 1)) | |
1545 | return -EIO; | |
1546 | ||
1547 | /* all seems to be ok so far ... malloc */ | |
1548 | { | |
1549 | int size; | |
1550 | size = | |
1551 | sizeof(struct s_subqcode) * (stuffp->di.n_last - | |
1552 | stuffp->di.n_first + 2); | |
1553 | ||
1554 | xtrace(MALLOC, "ioctl() malloc %d bytes\n", size); | |
1555 | stuffp->toc = kmalloc(size, GFP_KERNEL); | |
1556 | if (!stuffp->toc) { | |
1557 | xwarn("Cannot malloc %d bytes for toc\n", size); | |
1558 | mcdx_setdrivemode(stuffp, DATA, 1); | |
1559 | return -EIO; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | /* now read actually the index */ | |
1564 | { | |
1565 | int trk; | |
1566 | int retries; | |
1567 | ||
1568 | for (trk = 0; | |
1569 | trk < (stuffp->di.n_last - stuffp->di.n_first + 1); | |
1570 | trk++) | |
1571 | stuffp->toc[trk].index = 0; | |
1572 | ||
1573 | for (retries = 300; retries; retries--) { /* why 300? */ | |
1574 | struct s_subqcode q; | |
1575 | unsigned int idx; | |
1576 | ||
1577 | if (-1 == mcdx_requestsubqcode(stuffp, &q, 1)) { | |
1578 | mcdx_setdrivemode(stuffp, DATA, 1); | |
1579 | return -EIO; | |
1580 | } | |
1581 | ||
1582 | idx = bcd2uint(q.index); | |
1583 | ||
1584 | if ((idx > 0) | |
1585 | && (idx <= stuffp->di.n_last) | |
1586 | && (q.tno == 0) | |
1587 | && (stuffp->toc[idx - stuffp->di.n_first]. | |
1588 | index == 0)) { | |
1589 | stuffp->toc[idx - stuffp->di.n_first] = q; | |
1590 | xtrace(READTOC, | |
1591 | "ioctl() toc idx %d (trk %d)\n", | |
1592 | idx, trk); | |
1593 | trk--; | |
1594 | } | |
1595 | if (trk == 0) | |
1596 | break; | |
1597 | } | |
1598 | memset(&stuffp-> | |
1599 | toc[stuffp->di.n_last - stuffp->di.n_first + 1], 0, | |
1600 | sizeof(stuffp->toc[0])); | |
1601 | stuffp->toc[stuffp->di.n_last - stuffp->di.n_first + | |
1602 | 1].dt = stuffp->di.msf_leadout; | |
1603 | } | |
1604 | ||
1605 | /* unset toc mode */ | |
1606 | xtrace(READTOC, "ioctl() undo toc mode\n"); | |
1607 | if (-1 == mcdx_setdrivemode(stuffp, DATA, 2)) | |
1608 | return -EIO; | |
1609 | ||
1610 | #if MCDX_DEBUG && READTOC | |
1611 | { | |
1612 | int trk; | |
1613 | for (trk = 0; | |
1614 | trk < (stuffp->di.n_last - stuffp->di.n_first + 2); | |
1615 | trk++) | |
1616 | xtrace(READTOC, "ioctl() %d readtoc %02x %02x %02x" | |
1617 | " %02x:%02x.%02x %02x:%02x.%02x\n", | |
1618 | trk + stuffp->di.n_first, | |
1619 | stuffp->toc[trk].control, | |
1620 | stuffp->toc[trk].tno, | |
1621 | stuffp->toc[trk].index, | |
1622 | stuffp->toc[trk].tt.minute, | |
1623 | stuffp->toc[trk].tt.second, | |
1624 | stuffp->toc[trk].tt.frame, | |
1625 | stuffp->toc[trk].dt.minute, | |
1626 | stuffp->toc[trk].dt.second, | |
1627 | stuffp->toc[trk].dt.frame); | |
1628 | } | |
1629 | #endif | |
1630 | ||
1631 | return 0; | |
1632 | } | |
1633 | ||
1634 | static int | |
1635 | mcdx_playmsf(struct s_drive_stuff *stuffp, const struct cdrom_msf *msf) | |
1636 | { | |
1637 | unsigned char cmd[7] = { | |
1638 | 0, 0, 0, 0, 0, 0, 0 | |
1639 | }; | |
1640 | ||
1641 | if (!stuffp->readcmd) { | |
1642 | xinfo("Can't play from missing disk.\n"); | |
1643 | return -1; | |
1644 | } | |
1645 | ||
1646 | cmd[0] = stuffp->playcmd; | |
1647 | ||
1648 | cmd[1] = msf->cdmsf_min0; | |
1649 | cmd[2] = msf->cdmsf_sec0; | |
1650 | cmd[3] = msf->cdmsf_frame0; | |
1651 | cmd[4] = msf->cdmsf_min1; | |
1652 | cmd[5] = msf->cdmsf_sec1; | |
1653 | cmd[6] = msf->cdmsf_frame1; | |
1654 | ||
1655 | xtrace(PLAYMSF, "ioctl(): play %x " | |
1656 | "%02x:%02x:%02x -- %02x:%02x:%02x\n", | |
1657 | cmd[0], cmd[1], cmd[2], cmd[3], cmd[4], cmd[5], cmd[6]); | |
1658 | ||
1659 | outsb(stuffp->wreg_data, cmd, sizeof cmd); | |
1660 | ||
1661 | if (-1 == mcdx_getval(stuffp, 3 * HZ, 0, NULL)) { | |
1662 | xwarn("playmsf() timeout\n"); | |
1663 | return -1; | |
1664 | } | |
1665 | ||
1666 | stuffp->audiostatus = CDROM_AUDIO_PLAY; | |
1667 | return 0; | |
1668 | } | |
1669 | ||
1670 | static int | |
1671 | mcdx_playtrk(struct s_drive_stuff *stuffp, const struct cdrom_ti *ti) | |
1672 | { | |
1673 | struct s_subqcode *p; | |
1674 | struct cdrom_msf msf; | |
1675 | ||
1676 | if (-1 == mcdx_readtoc(stuffp)) | |
1677 | return -1; | |
1678 | ||
1679 | if (ti) | |
1680 | p = &stuffp->toc[ti->cdti_trk0 - stuffp->di.n_first]; | |
1681 | else | |
1682 | p = &stuffp->start; | |
1683 | ||
1684 | msf.cdmsf_min0 = p->dt.minute; | |
1685 | msf.cdmsf_sec0 = p->dt.second; | |
1686 | msf.cdmsf_frame0 = p->dt.frame; | |
1687 | ||
1688 | if (ti) { | |
1689 | p = &stuffp->toc[ti->cdti_trk1 - stuffp->di.n_first + 1]; | |
1690 | stuffp->stop = *p; | |
1691 | } else | |
1692 | p = &stuffp->stop; | |
1693 | ||
1694 | msf.cdmsf_min1 = p->dt.minute; | |
1695 | msf.cdmsf_sec1 = p->dt.second; | |
1696 | msf.cdmsf_frame1 = p->dt.frame; | |
1697 | ||
1698 | return mcdx_playmsf(stuffp, &msf); | |
1699 | } | |
1700 | ||
1701 | ||
1702 | /* Drive functions ************************************************/ | |
1703 | ||
1704 | static int mcdx_tray_move(struct cdrom_device_info *cdi, int position) | |
1705 | { | |
1706 | struct s_drive_stuff *stuffp = cdi->handle; | |
1707 | ||
1708 | if (!stuffp->present) | |
1709 | return -ENXIO; | |
1710 | if (!(stuffp->present & DOOR)) | |
1711 | return -ENOSYS; | |
1712 | ||
1713 | if (position) /* 1: eject */ | |
1714 | return mcdx_talk(stuffp, "\xf6", 1, NULL, 1, 5 * HZ, 3); | |
1715 | else /* 0: close */ | |
1716 | return mcdx_talk(stuffp, "\xf8", 1, NULL, 1, 5 * HZ, 3); | |
1717 | return 1; | |
1718 | } | |
1719 | ||
1720 | static int mcdx_stop(struct s_drive_stuff *stuffp, int tries) | |
1721 | { | |
1722 | return mcdx_talk(stuffp, "\xf0", 1, NULL, 1, 2 * HZ, tries); | |
1723 | } | |
1724 | ||
1725 | static int mcdx_hold(struct s_drive_stuff *stuffp, int tries) | |
1726 | { | |
1727 | return mcdx_talk(stuffp, "\x70", 1, NULL, 1, 2 * HZ, tries); | |
1728 | } | |
1729 | ||
1730 | static int mcdx_requestsubqcode(struct s_drive_stuff *stuffp, | |
1731 | struct s_subqcode *sub, int tries) | |
1732 | { | |
1733 | char buf[11]; | |
1734 | int ans; | |
1735 | ||
1736 | if (-1 == (ans = mcdx_talk(stuffp, "\x20", 1, buf, sizeof(buf), | |
1737 | 2 * HZ, tries))) | |
1738 | return -1; | |
1739 | sub->control = buf[1]; | |
1740 | sub->tno = buf[2]; | |
1741 | sub->index = buf[3]; | |
1742 | sub->tt.minute = buf[4]; | |
1743 | sub->tt.second = buf[5]; | |
1744 | sub->tt.frame = buf[6]; | |
1745 | sub->dt.minute = buf[8]; | |
1746 | sub->dt.second = buf[9]; | |
1747 | sub->dt.frame = buf[10]; | |
1748 | ||
1749 | return ans; | |
1750 | } | |
1751 | ||
1752 | static int mcdx_requestmultidiskinfo(struct s_drive_stuff *stuffp, | |
1753 | struct s_multi *multi, int tries) | |
1754 | { | |
1755 | char buf[5]; | |
1756 | int ans; | |
1757 | ||
1758 | if (stuffp->present & MULTI) { | |
1759 | ans = | |
1760 | mcdx_talk(stuffp, "\x11", 1, buf, sizeof(buf), 2 * HZ, | |
1761 | tries); | |
1762 | multi->multi = buf[1]; | |
1763 | multi->msf_last.minute = buf[2]; | |
1764 | multi->msf_last.second = buf[3]; | |
1765 | multi->msf_last.frame = buf[4]; | |
1766 | return ans; | |
1767 | } else { | |
1768 | multi->multi = 0; | |
1769 | return 0; | |
1770 | } | |
1771 | } | |
1772 | ||
1773 | static int mcdx_requesttocdata(struct s_drive_stuff *stuffp, struct s_diskinfo *info, | |
1774 | int tries) | |
1775 | { | |
1776 | char buf[9]; | |
1777 | int ans; | |
1778 | ans = | |
1779 | mcdx_talk(stuffp, "\x10", 1, buf, sizeof(buf), 2 * HZ, tries); | |
1780 | if (ans == -1) { | |
1781 | info->n_first = 0; | |
1782 | info->n_last = 0; | |
1783 | } else { | |
1784 | info->n_first = bcd2uint(buf[1]); | |
1785 | info->n_last = bcd2uint(buf[2]); | |
1786 | info->msf_leadout.minute = buf[3]; | |
1787 | info->msf_leadout.second = buf[4]; | |
1788 | info->msf_leadout.frame = buf[5]; | |
1789 | info->msf_first.minute = buf[6]; | |
1790 | info->msf_first.second = buf[7]; | |
1791 | info->msf_first.frame = buf[8]; | |
1792 | } | |
1793 | return ans; | |
1794 | } | |
1795 | ||
1796 | static int mcdx_setdrivemode(struct s_drive_stuff *stuffp, enum drivemodes mode, | |
1797 | int tries) | |
1798 | { | |
1799 | char cmd[2]; | |
1800 | int ans; | |
1801 | ||
1802 | xtrace(HW, "setdrivemode() %d\n", mode); | |
1803 | ||
1804 | if (-1 == (ans = mcdx_talk(stuffp, "\xc2", 1, cmd, sizeof(cmd), 5 * HZ, tries))) | |
1805 | return -1; | |
1806 | ||
1807 | switch (mode) { | |
1808 | case TOC: | |
1809 | cmd[1] |= 0x04; | |
1810 | break; | |
1811 | case DATA: | |
1812 | cmd[1] &= ~0x04; | |
1813 | break; | |
1814 | case RAW: | |
1815 | cmd[1] |= 0x40; | |
1816 | break; | |
1817 | case COOKED: | |
1818 | cmd[1] &= ~0x40; | |
1819 | break; | |
1820 | default: | |
1821 | break; | |
1822 | } | |
1823 | cmd[0] = 0x50; | |
1824 | return mcdx_talk(stuffp, cmd, 2, NULL, 1, 5 * HZ, tries); | |
1825 | } | |
1826 | ||
1827 | static int mcdx_setdatamode(struct s_drive_stuff *stuffp, enum datamodes mode, | |
1828 | int tries) | |
1829 | { | |
1830 | unsigned char cmd[2] = { 0xa0 }; | |
1831 | xtrace(HW, "setdatamode() %d\n", mode); | |
1832 | switch (mode) { | |
1833 | case MODE0: | |
1834 | cmd[1] = 0x00; | |
1835 | break; | |
1836 | case MODE1: | |
1837 | cmd[1] = 0x01; | |
1838 | break; | |
1839 | case MODE2: | |
1840 | cmd[1] = 0x02; | |
1841 | break; | |
1842 | default: | |
1843 | return -EINVAL; | |
1844 | } | |
1845 | return mcdx_talk(stuffp, cmd, 2, NULL, 1, 5 * HZ, tries); | |
1846 | } | |
1847 | ||
1848 | static int mcdx_config(struct s_drive_stuff *stuffp, int tries) | |
1849 | { | |
1850 | char cmd[4]; | |
1851 | ||
1852 | xtrace(HW, "config()\n"); | |
1853 | ||
1854 | cmd[0] = 0x90; | |
1855 | ||
1856 | cmd[1] = 0x10; /* irq enable */ | |
1857 | cmd[2] = 0x05; /* pre, err irq enable */ | |
1858 | ||
1859 | if (-1 == mcdx_talk(stuffp, cmd, 3, NULL, 1, 1 * HZ, tries)) | |
1860 | return -1; | |
1861 | ||
1862 | cmd[1] = 0x02; /* dma select */ | |
1863 | cmd[2] = 0x00; /* no dma */ | |
1864 | ||
1865 | return mcdx_talk(stuffp, cmd, 3, NULL, 1, 1 * HZ, tries); | |
1866 | } | |
1867 | ||
1868 | static int mcdx_requestversion(struct s_drive_stuff *stuffp, struct s_version *ver, | |
1869 | int tries) | |
1870 | { | |
1871 | char buf[3]; | |
1872 | int ans; | |
1873 | ||
1874 | if (-1 == (ans = mcdx_talk(stuffp, "\xdc", | |
1875 | 1, buf, sizeof(buf), 2 * HZ, tries))) | |
1876 | return ans; | |
1877 | ||
1878 | ver->code = buf[1]; | |
1879 | ver->ver = buf[2]; | |
1880 | ||
1881 | return ans; | |
1882 | } | |
1883 | ||
1884 | static int mcdx_reset(struct s_drive_stuff *stuffp, enum resetmodes mode, int tries) | |
1885 | { | |
1886 | if (mode == HARD) { | |
1887 | outb(0, stuffp->wreg_chn); /* no dma, no irq -> hardware */ | |
1888 | outb(0, stuffp->wreg_reset); /* hw reset */ | |
1889 | return 0; | |
1890 | } else | |
1891 | return mcdx_talk(stuffp, "\x60", 1, NULL, 1, 5 * HZ, tries); | |
1892 | } | |
1893 | ||
1894 | static int mcdx_lockdoor(struct cdrom_device_info *cdi, int lock) | |
1895 | { | |
1896 | struct s_drive_stuff *stuffp = cdi->handle; | |
1897 | char cmd[2] = { 0xfe }; | |
1898 | ||
1899 | if (!(stuffp->present & DOOR)) | |
1900 | return -ENOSYS; | |
1901 | if (stuffp->present & DOOR) { | |
1902 | cmd[1] = lock ? 0x01 : 0x00; | |
1903 | return mcdx_talk(stuffp, cmd, sizeof(cmd), NULL, 1, 5 * HZ, 3); | |
1904 | } else | |
1905 | return 0; | |
1906 | } | |
1907 | ||
1908 | static int mcdx_getstatus(struct s_drive_stuff *stuffp, int tries) | |
1909 | { | |
1910 | return mcdx_talk(stuffp, "\x40", 1, NULL, 1, 5 * HZ, tries); | |
1911 | } | |
1912 | ||
1913 | static int | |
1914 | mcdx_getval(struct s_drive_stuff *stuffp, int to, int delay, char *buf) | |
1915 | { | |
1916 | unsigned long timeout = to + jiffies; | |
1917 | char c; | |
1918 | ||
1919 | if (!buf) | |
1920 | buf = &c; | |
1921 | ||
1922 | while (inb(stuffp->rreg_status) & MCDX_RBIT_STEN) { | |
1923 | if (time_after(jiffies, timeout)) | |
1924 | return -1; | |
1925 | mcdx_delay(stuffp, delay); | |
1926 | } | |
1927 | ||
1928 | *buf = (unsigned char) inb(stuffp->rreg_data) & 0xff; | |
1929 | ||
1930 | return 0; | |
1931 | } | |
1932 | ||
1933 | static int mcdx_setattentuator(struct s_drive_stuff *stuffp, | |
1934 | struct cdrom_volctrl *vol, int tries) | |
1935 | { | |
1936 | char cmd[5]; | |
1937 | cmd[0] = 0xae; | |
1938 | cmd[1] = vol->channel0; | |
1939 | cmd[2] = 0; | |
1940 | cmd[3] = vol->channel1; | |
1941 | cmd[4] = 0; | |
1942 | ||
1943 | return mcdx_talk(stuffp, cmd, sizeof(cmd), NULL, 5, 200, tries); | |
1944 | } | |
1945 | ||
1946 | MODULE_LICENSE("GPL"); | |
1947 | MODULE_ALIAS_BLOCKDEV_MAJOR(MITSUMI_X_CDROM_MAJOR); |