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1da177e4 LT |
1 | /* |
2 | * Sony CDU-31A CDROM interface device driver. | |
3 | * | |
4 | * Corey Minyard (minyard@wf-rch.cirr.com) | |
5 | * | |
6 | * Colossians 3:17 | |
7 | * | |
8 | * See Documentation/cdrom/cdu31a for additional details about this driver. | |
9 | * | |
10 | * The Sony interface device driver handles Sony interface CDROM | |
11 | * drives and provides a complete block-level interface as well as an | |
12 | * ioctl() interface compatible with the Sun (as specified in | |
13 | * include/linux/cdrom.h). With this interface, CDROMs can be | |
14 | * accessed and standard audio CDs can be played back normally. | |
15 | * | |
16 | * WARNING - All autoprobes have been removed from the driver. | |
17 | * You MUST configure the CDU31A via a LILO config | |
18 | * at boot time or in lilo.conf. I have the | |
19 | * following in my lilo.conf: | |
20 | * | |
21 | * append="cdu31a=0x1f88,0,PAS" | |
22 | * | |
23 | * The first number is the I/O base address of the | |
24 | * card. The second is the interrupt (0 means none). | |
25 | * The third should be "PAS" if on a Pro-Audio | |
26 | * spectrum, or nothing if on something else. | |
27 | * | |
28 | * This interface is (unfortunately) a polled interface. This is | |
29 | * because most Sony interfaces are set up with DMA and interrupts | |
30 | * disables. Some (like mine) do not even have the capability to | |
31 | * handle interrupts or DMA. For this reason you will see a lot of | |
32 | * the following: | |
33 | * | |
34 | * retry_count = jiffies+ SONY_JIFFIES_TIMEOUT; | |
35 | * while (time_before(jiffies, retry_count) && (! <some condition to wait for)) | |
36 | * { | |
37 | * while (handle_sony_cd_attention()) | |
38 | * ; | |
39 | * | |
40 | * sony_sleep(); | |
41 | * } | |
42 | * if (the condition not met) | |
43 | * { | |
44 | * return an error; | |
45 | * } | |
46 | * | |
47 | * This ugly hack waits for something to happen, sleeping a little | |
48 | * between every try. it also handles attentions, which are | |
49 | * asynchronous events from the drive informing the driver that a disk | |
50 | * has been inserted, removed, etc. | |
51 | * | |
52 | * NEWS FLASH - The driver now supports interrupts but they are | |
53 | * turned off by default. Use of interrupts is highly encouraged, it | |
54 | * cuts CPU usage down to a reasonable level. I had DMA in for a while | |
55 | * but PC DMA is just too slow. Better to just insb() it. | |
56 | * | |
57 | * One thing about these drives: They talk in MSF (Minute Second Frame) format. | |
58 | * There are 75 frames a second, 60 seconds a minute, and up to 75 minutes on a | |
59 | * disk. The funny thing is that these are sent to the drive in BCD, but the | |
60 | * interface wants to see them in decimal. A lot of conversion goes on. | |
61 | * | |
62 | * DRIVER SPECIAL FEATURES | |
63 | * ----------------------- | |
64 | * | |
65 | * This section describes features beyond the normal audio and CD-ROM | |
66 | * functions of the drive. | |
67 | * | |
68 | * XA compatibility | |
69 | * | |
70 | * The driver should support XA disks for both the CDU31A and CDU33A. | |
71 | * It does this transparently, the using program doesn't need to set it. | |
72 | * | |
73 | * Multi-Session | |
74 | * | |
75 | * A multi-session disk looks just like a normal disk to the user. | |
76 | * Just mount one normally, and all the data should be there. | |
77 | * A special thanks to Koen for help with this! | |
78 | * | |
79 | * Raw sector I/O | |
80 | * | |
81 | * Using the CDROMREADAUDIO it is possible to read raw audio and data | |
82 | * tracks. Both operations return 2352 bytes per sector. On the data | |
83 | * tracks, the first 12 bytes is not returned by the drive and the value | |
84 | * of that data is indeterminate. | |
85 | * | |
86 | * | |
87 | * Copyright (C) 1993 Corey Minyard | |
88 | * | |
89 | * This program is free software; you can redistribute it and/or modify | |
90 | * it under the terms of the GNU General Public License as published by | |
91 | * the Free Software Foundation; either version 2 of the License, or | |
92 | * (at your option) any later version. | |
93 | * | |
94 | * This program is distributed in the hope that it will be useful, | |
95 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
96 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
97 | * GNU General Public License for more details. | |
98 | * | |
99 | * You should have received a copy of the GNU General Public License | |
100 | * along with this program; if not, write to the Free Software | |
101 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
102 | * | |
103 | * TODO: | |
104 | * CDs with form1 and form2 sectors cause problems | |
105 | * with current read-ahead strategy. | |
106 | * | |
107 | * Credits: | |
108 | * Heiko Eissfeldt <heiko@colossus.escape.de> | |
109 | * For finding abug in the return of the track numbers. | |
110 | * TOC processing redone for proper multisession support. | |
111 | * | |
112 | * | |
113 | * It probably a little late to be adding a history, but I guess I | |
114 | * will start. | |
115 | * | |
116 | * 10/24/95 - Added support for disabling the eject button when the | |
117 | * drive is open. Note that there is a small problem | |
118 | * still here, if the eject button is pushed while the | |
119 | * drive light is flashing, the drive will return a bad | |
120 | * status and be reset. It recovers, though. | |
121 | * | |
122 | * 03/07/97 - Fixed a problem with timers. | |
123 | * | |
124 | * | |
125 | * 18 Spetember 1997 -- Ported to Uniform CD-ROM driver by | |
126 | * Heiko Eissfeldt <heiko@colossus.escape.de> with additional | |
127 | * changes by Erik Andersen <andersee@debian.org> | |
128 | * | |
129 | * 24 January 1998 -- Removed the scd_disc_status() function, which was now | |
130 | * just dead code left over from the port. | |
131 | * Erik Andersen <andersee@debian.org> | |
132 | * | |
133 | * 16 July 1998 -- Drive donated to Erik Andersen by John Kodis | |
134 | * <kodis@jagunet.com>. Work begun on fixing driver to | |
135 | * work under 2.1.X. Added temporary extra printks | |
136 | * which seem to slow it down enough to work. | |
137 | * | |
138 | * 9 November 1999 -- Make kernel-parameter implementation work with 2.3.x | |
139 | * Removed init_module & cleanup_module in favor of | |
140 | * module_init & module_exit. | |
141 | * Torben Mathiasen <tmm@image.dk> | |
142 | * | |
143 | * 22 October 2004 -- Make the driver work in 2.6.X | |
144 | * Added workaround to fix hard lockups on eject | |
145 | * Fixed door locking problem after mounting empty drive | |
146 | * Set double-speed drives to double speed by default | |
147 | * Removed all readahead things - not needed anymore | |
148 | * Ondrej Zary <rainbow@rainbow-software.org> | |
149 | */ | |
150 | ||
151 | #define DEBUG 1 | |
152 | ||
153 | #include <linux/major.h> | |
154 | #include <linux/module.h> | |
155 | #include <linux/errno.h> | |
156 | #include <linux/signal.h> | |
157 | #include <linux/sched.h> | |
158 | #include <linux/timer.h> | |
159 | #include <linux/fs.h> | |
160 | #include <linux/kernel.h> | |
161 | #include <linux/hdreg.h> | |
162 | #include <linux/genhd.h> | |
163 | #include <linux/ioport.h> | |
1da177e4 LT |
164 | #include <linux/string.h> |
165 | #include <linux/slab.h> | |
166 | #include <linux/init.h> | |
167 | #include <linux/interrupt.h> | |
168 | #include <linux/cdrom.h> | |
169 | ||
170 | #include <asm/system.h> | |
171 | #include <asm/io.h> | |
172 | #include <asm/uaccess.h> | |
173 | #include <asm/dma.h> | |
174 | ||
175 | #include "cdu31a.h" | |
176 | ||
177 | #define MAJOR_NR CDU31A_CDROM_MAJOR | |
178 | #include <linux/blkdev.h> | |
179 | ||
180 | #define CDU31A_MAX_CONSECUTIVE_ATTENTIONS 10 | |
181 | ||
182 | #define PFX "CDU31A: " | |
183 | ||
184 | /* | |
185 | ** Edit the following data to change interrupts, DMA channels, etc. | |
186 | ** Default is polled and no DMA. DMA is not recommended for double-speed | |
187 | ** drives. | |
188 | */ | |
189 | static struct { | |
190 | unsigned short base; /* I/O Base Address */ | |
191 | short int_num; /* Interrupt Number (-1 means scan for it, | |
192 | 0 means don't use) */ | |
193 | } cdu31a_addresses[] __initdata = { | |
194 | {0} | |
195 | }; | |
196 | ||
197 | static int handle_sony_cd_attention(void); | |
198 | static int read_subcode(void); | |
199 | static void sony_get_toc(void); | |
200 | static int scd_spinup(void); | |
201 | /*static int scd_open(struct inode *inode, struct file *filp);*/ | |
202 | static int scd_open(struct cdrom_device_info *, int); | |
203 | static void do_sony_cd_cmd(unsigned char cmd, | |
204 | unsigned char *params, | |
205 | unsigned int num_params, | |
206 | unsigned char *result_buffer, | |
207 | unsigned int *result_size); | |
208 | static void size_to_buf(unsigned int size, unsigned char *buf); | |
209 | ||
210 | /* Parameters for the read-ahead. */ | |
211 | static unsigned int sony_next_block; /* Next 512 byte block offset */ | |
212 | static unsigned int sony_blocks_left = 0; /* Number of 512 byte blocks left | |
213 | in the current read command. */ | |
214 | ||
215 | ||
216 | /* The base I/O address of the Sony Interface. This is a variable (not a | |
217 | #define) so it can be easily changed via some future ioctl() */ | |
218 | static unsigned int cdu31a_port = 0; | |
219 | module_param(cdu31a_port, uint, 0); | |
220 | ||
221 | /* | |
222 | * The following are I/O addresses of the various registers for the drive. The | |
223 | * comment for the base address also applies here. | |
224 | */ | |
225 | static volatile unsigned short sony_cd_cmd_reg; | |
226 | static volatile unsigned short sony_cd_param_reg; | |
227 | static volatile unsigned short sony_cd_write_reg; | |
228 | static volatile unsigned short sony_cd_control_reg; | |
229 | static volatile unsigned short sony_cd_status_reg; | |
230 | static volatile unsigned short sony_cd_result_reg; | |
231 | static volatile unsigned short sony_cd_read_reg; | |
232 | static volatile unsigned short sony_cd_fifost_reg; | |
233 | ||
234 | static struct request_queue *cdu31a_queue; | |
235 | static DEFINE_SPINLOCK(cdu31a_lock); /* queue lock */ | |
236 | ||
237 | static int sony_spun_up = 0; /* Has the drive been spun up? */ | |
238 | ||
239 | static int sony_speed = 0; /* Last wanted speed */ | |
240 | ||
241 | static int sony_xa_mode = 0; /* Is an XA disk in the drive | |
242 | and the drive a CDU31A? */ | |
243 | ||
244 | static int sony_raw_data_mode = 1; /* 1 if data tracks, 0 if audio. | |
245 | For raw data reads. */ | |
246 | ||
247 | static unsigned int sony_usage = 0; /* How many processes have the | |
248 | drive open. */ | |
249 | ||
250 | static int sony_pas_init = 0; /* Initialize the Pro-Audio | |
251 | Spectrum card? */ | |
252 | ||
253 | static struct s_sony_session_toc single_toc; /* Holds the | |
254 | table of | |
255 | contents. */ | |
256 | ||
257 | static struct s_all_sessions_toc sony_toc; /* entries gathered from all | |
258 | sessions */ | |
259 | ||
260 | static int sony_toc_read = 0; /* Has the TOC been read for | |
261 | the drive? */ | |
262 | ||
263 | static struct s_sony_subcode last_sony_subcode; /* Points to the last | |
264 | subcode address read */ | |
265 | ||
266 | static DECLARE_MUTEX(sony_sem); /* Semaphore for drive hardware access */ | |
267 | ||
268 | static int is_double_speed = 0; /* does the drive support double speed ? */ | |
269 | ||
270 | static int is_auto_eject = 1; /* Door has been locked? 1=No/0=Yes */ | |
271 | ||
272 | /* | |
273 | * The audio status uses the values from read subchannel data as specified | |
274 | * in include/linux/cdrom.h. | |
275 | */ | |
276 | static volatile int sony_audio_status = CDROM_AUDIO_NO_STATUS; | |
277 | ||
278 | /* | |
279 | * The following are a hack for pausing and resuming audio play. The drive | |
280 | * does not work as I would expect it, if you stop it then start it again, | |
281 | * the drive seeks back to the beginning and starts over. This holds the | |
282 | * position during a pause so a resume can restart it. It uses the | |
283 | * audio status variable above to tell if it is paused. | |
284 | */ | |
285 | static unsigned volatile char cur_pos_msf[3] = { 0, 0, 0 }; | |
286 | static unsigned volatile char final_pos_msf[3] = { 0, 0, 0 }; | |
287 | ||
288 | /* What IRQ is the drive using? 0 if none. */ | |
289 | static int cdu31a_irq = 0; | |
290 | module_param(cdu31a_irq, int, 0); | |
291 | ||
292 | /* The interrupt handler will wake this queue up when it gets an | |
293 | interrupts. */ | |
75c96f85 | 294 | static DECLARE_WAIT_QUEUE_HEAD(cdu31a_irq_wait); |
1da177e4 LT |
295 | static int irq_flag = 0; |
296 | ||
297 | static int curr_control_reg = 0; /* Current value of the control register */ | |
298 | ||
299 | /* A disk changed variable. When a disk change is detected, it will | |
300 | all be set to TRUE. As the upper layers ask for disk_changed status | |
301 | it will be cleared. */ | |
302 | static char disk_changed; | |
303 | ||
304 | /* This was readahead_buffer once... Now it's used only for audio reads */ | |
305 | static char audio_buffer[CD_FRAMESIZE_RAW]; | |
306 | ||
307 | /* Used to time a short period to abort an operation after the | |
308 | drive has been idle for a while. This keeps the light on | |
309 | the drive from flashing for very long. */ | |
310 | static struct timer_list cdu31a_abort_timer; | |
311 | ||
312 | /* Marks if the timeout has started an abort read. This is used | |
313 | on entry to the drive to tell the code to read out the status | |
314 | from the abort read. */ | |
315 | static int abort_read_started = 0; | |
316 | ||
317 | /* | |
318 | * Uniform cdrom interface function | |
319 | * report back, if disc has changed from time of last request. | |
320 | */ | |
321 | static int scd_media_changed(struct cdrom_device_info *cdi, int disc_nr) | |
322 | { | |
323 | int retval; | |
324 | ||
325 | retval = disk_changed; | |
326 | disk_changed = 0; | |
327 | ||
328 | return retval; | |
329 | } | |
330 | ||
331 | /* | |
332 | * Uniform cdrom interface function | |
333 | * report back, if drive is ready | |
334 | */ | |
335 | static int scd_drive_status(struct cdrom_device_info *cdi, int slot_nr) | |
336 | { | |
337 | if (CDSL_CURRENT != slot_nr) | |
338 | /* we have no changer support */ | |
339 | return -EINVAL; | |
340 | if (sony_spun_up) | |
341 | return CDS_DISC_OK; | |
342 | if (down_interruptible(&sony_sem)) | |
343 | return -ERESTARTSYS; | |
344 | if (scd_spinup() == 0) | |
345 | sony_spun_up = 1; | |
346 | up(&sony_sem); | |
347 | return sony_spun_up ? CDS_DISC_OK : CDS_DRIVE_NOT_READY; | |
348 | } | |
349 | ||
350 | static inline void enable_interrupts(void) | |
351 | { | |
352 | curr_control_reg |= (SONY_ATTN_INT_EN_BIT | |
353 | | SONY_RES_RDY_INT_EN_BIT | |
354 | | SONY_DATA_RDY_INT_EN_BIT); | |
355 | outb(curr_control_reg, sony_cd_control_reg); | |
356 | } | |
357 | ||
358 | static inline void disable_interrupts(void) | |
359 | { | |
360 | curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT | |
361 | | SONY_RES_RDY_INT_EN_BIT | |
362 | | SONY_DATA_RDY_INT_EN_BIT); | |
363 | outb(curr_control_reg, sony_cd_control_reg); | |
364 | } | |
365 | ||
366 | /* | |
367 | * Wait a little while (used for polling the drive). If in initialization, | |
368 | * setting a timeout doesn't work, so just loop for a while. | |
369 | */ | |
370 | static inline void sony_sleep(void) | |
371 | { | |
372 | if (cdu31a_irq <= 0) { | |
373 | yield(); | |
374 | } else { /* Interrupt driven */ | |
375 | DEFINE_WAIT(w); | |
376 | int first = 1; | |
377 | ||
378 | while (1) { | |
379 | prepare_to_wait(&cdu31a_irq_wait, &w, | |
380 | TASK_INTERRUPTIBLE); | |
381 | if (first) { | |
382 | enable_interrupts(); | |
383 | first = 0; | |
384 | } | |
385 | ||
386 | if (irq_flag != 0) | |
387 | break; | |
388 | if (!signal_pending(current)) { | |
389 | schedule(); | |
390 | continue; | |
391 | } else | |
392 | disable_interrupts(); | |
393 | break; | |
394 | } | |
395 | finish_wait(&cdu31a_irq_wait, &w); | |
396 | irq_flag = 0; | |
397 | } | |
398 | } | |
399 | ||
400 | ||
401 | /* | |
402 | * The following are convenience routine to read various status and set | |
403 | * various conditions in the drive. | |
404 | */ | |
405 | static inline int is_attention(void) | |
406 | { | |
407 | return (inb(sony_cd_status_reg) & SONY_ATTN_BIT) != 0; | |
408 | } | |
409 | ||
410 | static inline int is_busy(void) | |
411 | { | |
412 | return (inb(sony_cd_status_reg) & SONY_BUSY_BIT) != 0; | |
413 | } | |
414 | ||
415 | static inline int is_data_ready(void) | |
416 | { | |
417 | return (inb(sony_cd_status_reg) & SONY_DATA_RDY_BIT) != 0; | |
418 | } | |
419 | ||
420 | static inline int is_data_requested(void) | |
421 | { | |
422 | return (inb(sony_cd_status_reg) & SONY_DATA_REQUEST_BIT) != 0; | |
423 | } | |
424 | ||
425 | static inline int is_result_ready(void) | |
426 | { | |
427 | return (inb(sony_cd_status_reg) & SONY_RES_RDY_BIT) != 0; | |
428 | } | |
429 | ||
430 | static inline int is_param_write_rdy(void) | |
431 | { | |
432 | return (inb(sony_cd_fifost_reg) & SONY_PARAM_WRITE_RDY_BIT) != 0; | |
433 | } | |
434 | ||
435 | static inline int is_result_reg_not_empty(void) | |
436 | { | |
437 | return (inb(sony_cd_fifost_reg) & SONY_RES_REG_NOT_EMP_BIT) != 0; | |
438 | } | |
439 | ||
440 | static inline void reset_drive(void) | |
441 | { | |
442 | curr_control_reg = 0; | |
443 | sony_toc_read = 0; | |
444 | outb(SONY_DRIVE_RESET_BIT, sony_cd_control_reg); | |
445 | } | |
446 | ||
447 | /* | |
448 | * Uniform cdrom interface function | |
449 | * reset drive and return when it is ready | |
450 | */ | |
451 | static int scd_reset(struct cdrom_device_info *cdi) | |
452 | { | |
453 | unsigned long retry_count; | |
454 | ||
455 | if (down_interruptible(&sony_sem)) | |
456 | return -ERESTARTSYS; | |
457 | reset_drive(); | |
458 | ||
459 | retry_count = jiffies + SONY_RESET_TIMEOUT; | |
460 | while (time_before(jiffies, retry_count) && (!is_attention())) { | |
461 | sony_sleep(); | |
462 | } | |
463 | ||
464 | up(&sony_sem); | |
465 | return 0; | |
466 | } | |
467 | ||
468 | static inline void clear_attention(void) | |
469 | { | |
470 | outb(curr_control_reg | SONY_ATTN_CLR_BIT, sony_cd_control_reg); | |
471 | } | |
472 | ||
473 | static inline void clear_result_ready(void) | |
474 | { | |
475 | outb(curr_control_reg | SONY_RES_RDY_CLR_BIT, sony_cd_control_reg); | |
476 | } | |
477 | ||
478 | static inline void clear_data_ready(void) | |
479 | { | |
480 | outb(curr_control_reg | SONY_DATA_RDY_CLR_BIT, | |
481 | sony_cd_control_reg); | |
482 | } | |
483 | ||
484 | static inline void clear_param_reg(void) | |
485 | { | |
486 | outb(curr_control_reg | SONY_PARAM_CLR_BIT, sony_cd_control_reg); | |
487 | } | |
488 | ||
489 | static inline unsigned char read_status_register(void) | |
490 | { | |
491 | return inb(sony_cd_status_reg); | |
492 | } | |
493 | ||
494 | static inline unsigned char read_result_register(void) | |
495 | { | |
496 | return inb(sony_cd_result_reg); | |
497 | } | |
498 | ||
499 | static inline unsigned char read_data_register(void) | |
500 | { | |
501 | return inb(sony_cd_read_reg); | |
502 | } | |
503 | ||
504 | static inline void write_param(unsigned char param) | |
505 | { | |
506 | outb(param, sony_cd_param_reg); | |
507 | } | |
508 | ||
509 | static inline void write_cmd(unsigned char cmd) | |
510 | { | |
511 | outb(curr_control_reg | SONY_RES_RDY_INT_EN_BIT, | |
512 | sony_cd_control_reg); | |
513 | outb(cmd, sony_cd_cmd_reg); | |
514 | } | |
515 | ||
516 | static irqreturn_t cdu31a_interrupt(int irq, void *dev_id, struct pt_regs *regs) | |
517 | { | |
518 | unsigned char val; | |
519 | ||
520 | if (abort_read_started) { | |
521 | /* We might be waiting for an abort to finish. Don't | |
522 | disable interrupts yet, though, because we handle | |
523 | this one here. */ | |
524 | /* Clear out the result registers. */ | |
525 | while (is_result_reg_not_empty()) { | |
526 | val = read_result_register(); | |
527 | } | |
528 | clear_data_ready(); | |
529 | clear_result_ready(); | |
530 | ||
531 | /* Clear out the data */ | |
532 | while (is_data_requested()) { | |
533 | val = read_data_register(); | |
534 | } | |
535 | abort_read_started = 0; | |
536 | ||
537 | /* If something was waiting, wake it up now. */ | |
538 | if (waitqueue_active(&cdu31a_irq_wait)) { | |
539 | disable_interrupts(); | |
540 | irq_flag = 1; | |
541 | wake_up_interruptible(&cdu31a_irq_wait); | |
542 | } | |
543 | } else if (waitqueue_active(&cdu31a_irq_wait)) { | |
544 | disable_interrupts(); | |
545 | irq_flag = 1; | |
546 | wake_up_interruptible(&cdu31a_irq_wait); | |
547 | } else { | |
548 | disable_interrupts(); | |
549 | printk(KERN_NOTICE PFX | |
550 | "Got an interrupt but nothing was waiting\n"); | |
551 | } | |
552 | return IRQ_HANDLED; | |
553 | } | |
554 | ||
555 | /* | |
556 | * give more verbose error messages | |
557 | */ | |
558 | static unsigned char *translate_error(unsigned char err_code) | |
559 | { | |
560 | static unsigned char errbuf[80]; | |
561 | ||
562 | switch (err_code) { | |
563 | case 0x10: return "illegal command "; | |
564 | case 0x11: return "illegal parameter "; | |
565 | ||
566 | case 0x20: return "not loaded "; | |
567 | case 0x21: return "no disc "; | |
568 | case 0x22: return "not spinning "; | |
569 | case 0x23: return "spinning "; | |
570 | case 0x25: return "spindle servo "; | |
571 | case 0x26: return "focus servo "; | |
572 | case 0x29: return "eject mechanism "; | |
573 | case 0x2a: return "audio playing "; | |
574 | case 0x2c: return "emergency eject "; | |
575 | ||
576 | case 0x30: return "focus "; | |
577 | case 0x31: return "frame sync "; | |
578 | case 0x32: return "subcode address "; | |
579 | case 0x33: return "block sync "; | |
580 | case 0x34: return "header address "; | |
581 | ||
582 | case 0x40: return "illegal track read "; | |
583 | case 0x41: return "mode 0 read "; | |
584 | case 0x42: return "illegal mode read "; | |
585 | case 0x43: return "illegal block size read "; | |
586 | case 0x44: return "mode read "; | |
587 | case 0x45: return "form read "; | |
588 | case 0x46: return "leadout read "; | |
589 | case 0x47: return "buffer overrun "; | |
590 | ||
591 | case 0x53: return "unrecoverable CIRC "; | |
592 | case 0x57: return "unrecoverable LECC "; | |
593 | ||
594 | case 0x60: return "no TOC "; | |
595 | case 0x61: return "invalid subcode data "; | |
596 | case 0x63: return "focus on TOC read "; | |
597 | case 0x64: return "frame sync on TOC read "; | |
598 | case 0x65: return "TOC data "; | |
599 | ||
600 | case 0x70: return "hardware failure "; | |
601 | case 0x91: return "leadin "; | |
602 | case 0x92: return "leadout "; | |
603 | case 0x93: return "data track "; | |
604 | } | |
605 | sprintf(errbuf, "unknown 0x%02x ", err_code); | |
606 | return errbuf; | |
607 | } | |
608 | ||
609 | /* | |
610 | * Set the drive parameters so the drive will auto-spin-up when a | |
611 | * disk is inserted. | |
612 | */ | |
613 | static void set_drive_params(int want_doublespeed) | |
614 | { | |
615 | unsigned char res_reg[12]; | |
616 | unsigned int res_size; | |
617 | unsigned char params[3]; | |
618 | ||
619 | ||
620 | params[0] = SONY_SD_AUTO_SPIN_DOWN_TIME; | |
621 | params[1] = 0x00; /* Never spin down the drive. */ | |
622 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
623 | params, 2, res_reg, &res_size); | |
624 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { | |
625 | printk(KERN_NOTICE PFX | |
626 | "Unable to set spin-down time: 0x%2.2x\n", res_reg[1]); | |
627 | } | |
628 | ||
629 | params[0] = SONY_SD_MECH_CONTROL; | |
630 | params[1] = SONY_AUTO_SPIN_UP_BIT; /* Set auto spin up */ | |
631 | ||
632 | if (is_auto_eject) | |
633 | params[1] |= SONY_AUTO_EJECT_BIT; | |
634 | ||
635 | if (is_double_speed && want_doublespeed) { | |
636 | params[1] |= SONY_DOUBLE_SPEED_BIT; /* Set the drive to double speed if | |
637 | possible */ | |
638 | } | |
639 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
640 | params, 2, res_reg, &res_size); | |
641 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { | |
642 | printk(KERN_NOTICE PFX "Unable to set mechanical " | |
643 | "parameters: 0x%2.2x\n", res_reg[1]); | |
644 | } | |
645 | } | |
646 | ||
647 | /* | |
648 | * Uniform cdrom interface function | |
649 | * select reading speed for data access | |
650 | */ | |
651 | static int scd_select_speed(struct cdrom_device_info *cdi, int speed) | |
652 | { | |
653 | if (speed == 0) | |
654 | sony_speed = 1; | |
655 | else | |
656 | sony_speed = speed - 1; | |
657 | ||
658 | if (down_interruptible(&sony_sem)) | |
659 | return -ERESTARTSYS; | |
660 | set_drive_params(sony_speed); | |
661 | up(&sony_sem); | |
662 | return 0; | |
663 | } | |
664 | ||
665 | /* | |
666 | * Uniform cdrom interface function | |
667 | * lock or unlock eject button | |
668 | */ | |
669 | static int scd_lock_door(struct cdrom_device_info *cdi, int lock) | |
670 | { | |
671 | if (lock == 0) { | |
672 | is_auto_eject = 1; | |
673 | } else { | |
674 | is_auto_eject = 0; | |
675 | } | |
676 | if (down_interruptible(&sony_sem)) | |
677 | return -ERESTARTSYS; | |
678 | set_drive_params(sony_speed); | |
679 | up(&sony_sem); | |
680 | return 0; | |
681 | } | |
682 | ||
683 | /* | |
684 | * This code will reset the drive and attempt to restore sane parameters. | |
685 | */ | |
686 | static void restart_on_error(void) | |
687 | { | |
688 | unsigned char res_reg[12]; | |
689 | unsigned int res_size; | |
690 | unsigned long retry_count; | |
691 | ||
692 | ||
693 | printk(KERN_NOTICE PFX "Resetting drive on error\n"); | |
694 | reset_drive(); | |
695 | retry_count = jiffies + SONY_RESET_TIMEOUT; | |
696 | while (time_before(jiffies, retry_count) && (!is_attention())) { | |
697 | sony_sleep(); | |
698 | } | |
699 | set_drive_params(sony_speed); | |
700 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size); | |
701 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { | |
702 | printk(KERN_NOTICE PFX "Unable to spin up drive: 0x%2.2x\n", | |
703 | res_reg[1]); | |
704 | } | |
705 | ||
706 | msleep(2000); | |
707 | ||
708 | sony_get_toc(); | |
709 | } | |
710 | ||
711 | /* | |
712 | * This routine writes data to the parameter register. Since this should | |
713 | * happen fairly fast, it is polled with no OS waits between. | |
714 | */ | |
715 | static int write_params(unsigned char *params, int num_params) | |
716 | { | |
717 | unsigned int retry_count; | |
718 | ||
719 | ||
720 | retry_count = SONY_READY_RETRIES; | |
721 | while ((retry_count > 0) && (!is_param_write_rdy())) { | |
722 | retry_count--; | |
723 | } | |
724 | if (!is_param_write_rdy()) { | |
725 | return -EIO; | |
726 | } | |
727 | ||
728 | while (num_params > 0) { | |
729 | write_param(*params); | |
730 | params++; | |
731 | num_params--; | |
732 | } | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | ||
738 | /* | |
739 | * The following reads data from the command result register. It is a | |
740 | * fairly complex routine, all status info flows back through this | |
741 | * interface. The algorithm is stolen directly from the flowcharts in | |
742 | * the drive manual. | |
743 | */ | |
744 | static void | |
745 | get_result(unsigned char *result_buffer, unsigned int *result_size) | |
746 | { | |
747 | unsigned char a, b; | |
748 | int i; | |
749 | unsigned long retry_count; | |
750 | ||
751 | ||
752 | while (handle_sony_cd_attention()); | |
753 | /* Wait for the result data to be ready */ | |
754 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
755 | while (time_before(jiffies, retry_count) | |
756 | && (is_busy() || (!(is_result_ready())))) { | |
757 | sony_sleep(); | |
758 | ||
759 | while (handle_sony_cd_attention()); | |
760 | } | |
761 | if (is_busy() || (!(is_result_ready()))) { | |
762 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
763 | result_buffer[0] = 0x20; | |
764 | result_buffer[1] = SONY_TIMEOUT_OP_ERR; | |
765 | *result_size = 2; | |
766 | return; | |
767 | } | |
768 | ||
769 | /* | |
770 | * Get the first two bytes. This determines what else needs | |
771 | * to be done. | |
772 | */ | |
773 | clear_result_ready(); | |
774 | a = read_result_register(); | |
775 | *result_buffer = a; | |
776 | result_buffer++; | |
777 | ||
778 | /* Check for block error status result. */ | |
779 | if ((a & 0xf0) == 0x50) { | |
780 | *result_size = 1; | |
781 | return; | |
782 | } | |
783 | ||
784 | b = read_result_register(); | |
785 | *result_buffer = b; | |
786 | result_buffer++; | |
787 | *result_size = 2; | |
788 | ||
789 | /* | |
790 | * 0x20 means an error occurred. Byte 2 will have the error code. | |
791 | * Otherwise, the command succeeded, byte 2 will have the count of | |
792 | * how many more status bytes are coming. | |
793 | * | |
794 | * The result register can be read 10 bytes at a time, a wait for | |
795 | * result ready to be asserted must be done between every 10 bytes. | |
796 | */ | |
797 | if ((a & 0xf0) != 0x20) { | |
798 | if (b > 8) { | |
799 | for (i = 0; i < 8; i++) { | |
800 | *result_buffer = read_result_register(); | |
801 | result_buffer++; | |
802 | (*result_size)++; | |
803 | } | |
804 | b = b - 8; | |
805 | ||
806 | while (b > 10) { | |
807 | retry_count = SONY_READY_RETRIES; | |
808 | while ((retry_count > 0) | |
809 | && (!is_result_ready())) { | |
810 | retry_count--; | |
811 | } | |
812 | if (!is_result_ready()) { | |
813 | pr_debug(PFX "timeout out %d\n", | |
814 | __LINE__); | |
815 | result_buffer[0] = 0x20; | |
816 | result_buffer[1] = | |
817 | SONY_TIMEOUT_OP_ERR; | |
818 | *result_size = 2; | |
819 | return; | |
820 | } | |
821 | ||
822 | clear_result_ready(); | |
823 | ||
824 | for (i = 0; i < 10; i++) { | |
825 | *result_buffer = | |
826 | read_result_register(); | |
827 | result_buffer++; | |
828 | (*result_size)++; | |
829 | } | |
830 | b = b - 10; | |
831 | } | |
832 | ||
833 | if (b > 0) { | |
834 | retry_count = SONY_READY_RETRIES; | |
835 | while ((retry_count > 0) | |
836 | && (!is_result_ready())) { | |
837 | retry_count--; | |
838 | } | |
839 | if (!is_result_ready()) { | |
840 | pr_debug(PFX "timeout out %d\n", | |
841 | __LINE__); | |
842 | result_buffer[0] = 0x20; | |
843 | result_buffer[1] = | |
844 | SONY_TIMEOUT_OP_ERR; | |
845 | *result_size = 2; | |
846 | return; | |
847 | } | |
848 | } | |
849 | } | |
850 | ||
851 | while (b > 0) { | |
852 | *result_buffer = read_result_register(); | |
853 | result_buffer++; | |
854 | (*result_size)++; | |
855 | b--; | |
856 | } | |
857 | } | |
858 | } | |
859 | ||
860 | /* | |
861 | * Do a command that does not involve data transfer. This routine must | |
862 | * be re-entrant from the same task to support being called from the | |
863 | * data operation code when an error occurs. | |
864 | */ | |
865 | static void | |
866 | do_sony_cd_cmd(unsigned char cmd, | |
867 | unsigned char *params, | |
868 | unsigned int num_params, | |
869 | unsigned char *result_buffer, unsigned int *result_size) | |
870 | { | |
871 | unsigned long retry_count; | |
872 | int num_retries = 0; | |
873 | ||
874 | retry_cd_operation: | |
875 | ||
876 | while (handle_sony_cd_attention()); | |
877 | ||
878 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
879 | while (time_before(jiffies, retry_count) && (is_busy())) { | |
880 | sony_sleep(); | |
881 | ||
882 | while (handle_sony_cd_attention()); | |
883 | } | |
884 | if (is_busy()) { | |
885 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
886 | result_buffer[0] = 0x20; | |
887 | result_buffer[1] = SONY_TIMEOUT_OP_ERR; | |
888 | *result_size = 2; | |
889 | } else { | |
890 | clear_result_ready(); | |
891 | clear_param_reg(); | |
892 | ||
893 | write_params(params, num_params); | |
894 | write_cmd(cmd); | |
895 | ||
896 | get_result(result_buffer, result_size); | |
897 | } | |
898 | ||
899 | if (((result_buffer[0] & 0xf0) == 0x20) | |
900 | && (num_retries < MAX_CDU31A_RETRIES)) { | |
901 | num_retries++; | |
902 | msleep(100); | |
903 | goto retry_cd_operation; | |
904 | } | |
905 | } | |
906 | ||
907 | ||
908 | /* | |
909 | * Handle an attention from the drive. This will return 1 if it found one | |
910 | * or 0 if not (if one is found, the caller might want to call again). | |
911 | * | |
912 | * This routine counts the number of consecutive times it is called | |
913 | * (since this is always called from a while loop until it returns | |
914 | * a 0), and returns a 0 if it happens too many times. This will help | |
915 | * prevent a lockup. | |
916 | */ | |
917 | static int handle_sony_cd_attention(void) | |
918 | { | |
919 | unsigned char atten_code; | |
920 | static int num_consecutive_attentions = 0; | |
921 | volatile int val; | |
922 | ||
923 | ||
924 | #if 0 | |
925 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
926 | #endif | |
927 | if (is_attention()) { | |
928 | if (num_consecutive_attentions > | |
929 | CDU31A_MAX_CONSECUTIVE_ATTENTIONS) { | |
930 | printk(KERN_NOTICE PFX "Too many consecutive " | |
931 | "attentions: %d\n", num_consecutive_attentions); | |
932 | num_consecutive_attentions = 0; | |
933 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, | |
934 | __LINE__); | |
935 | return 0; | |
936 | } | |
937 | ||
938 | clear_attention(); | |
939 | atten_code = read_result_register(); | |
940 | ||
941 | switch (atten_code) { | |
942 | /* Someone changed the CD. Mark it as changed */ | |
943 | case SONY_MECH_LOADED_ATTN: | |
944 | disk_changed = 1; | |
945 | sony_toc_read = 0; | |
946 | sony_audio_status = CDROM_AUDIO_NO_STATUS; | |
947 | sony_blocks_left = 0; | |
948 | break; | |
949 | ||
950 | case SONY_SPIN_DOWN_COMPLETE_ATTN: | |
951 | /* Mark the disk as spun down. */ | |
952 | sony_spun_up = 0; | |
953 | break; | |
954 | ||
955 | case SONY_AUDIO_PLAY_DONE_ATTN: | |
956 | sony_audio_status = CDROM_AUDIO_COMPLETED; | |
957 | read_subcode(); | |
958 | break; | |
959 | ||
960 | case SONY_EJECT_PUSHED_ATTN: | |
961 | if (is_auto_eject) { | |
962 | sony_audio_status = CDROM_AUDIO_INVALID; | |
963 | } | |
964 | break; | |
965 | ||
966 | case SONY_LEAD_IN_ERR_ATTN: | |
967 | case SONY_LEAD_OUT_ERR_ATTN: | |
968 | case SONY_DATA_TRACK_ERR_ATTN: | |
969 | case SONY_AUDIO_PLAYBACK_ERR_ATTN: | |
970 | sony_audio_status = CDROM_AUDIO_ERROR; | |
971 | break; | |
972 | } | |
973 | ||
974 | num_consecutive_attentions++; | |
975 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
976 | return 1; | |
977 | } else if (abort_read_started) { | |
978 | while (is_result_reg_not_empty()) { | |
979 | val = read_result_register(); | |
980 | } | |
981 | clear_data_ready(); | |
982 | clear_result_ready(); | |
983 | /* Clear out the data */ | |
984 | while (is_data_requested()) { | |
985 | val = read_data_register(); | |
986 | } | |
987 | abort_read_started = 0; | |
988 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
989 | return 1; | |
990 | } | |
991 | ||
992 | num_consecutive_attentions = 0; | |
993 | #if 0 | |
994 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
995 | #endif | |
996 | return 0; | |
997 | } | |
998 | ||
999 | ||
1000 | /* Convert from an integer 0-99 to BCD */ | |
1001 | static inline unsigned int int_to_bcd(unsigned int val) | |
1002 | { | |
1003 | int retval; | |
1004 | ||
1005 | ||
1006 | retval = (val / 10) << 4; | |
1007 | retval = retval | val % 10; | |
1008 | return retval; | |
1009 | } | |
1010 | ||
1011 | ||
1012 | /* Convert from BCD to an integer from 0-99 */ | |
1013 | static unsigned int bcd_to_int(unsigned int bcd) | |
1014 | { | |
1015 | return (((bcd >> 4) & 0x0f) * 10) + (bcd & 0x0f); | |
1016 | } | |
1017 | ||
1018 | ||
1019 | /* | |
1020 | * Convert a logical sector value (like the OS would want to use for | |
1021 | * a block device) to an MSF format. | |
1022 | */ | |
1023 | static void log_to_msf(unsigned int log, unsigned char *msf) | |
1024 | { | |
1025 | log = log + LOG_START_OFFSET; | |
1026 | msf[0] = int_to_bcd(log / 4500); | |
1027 | log = log % 4500; | |
1028 | msf[1] = int_to_bcd(log / 75); | |
1029 | msf[2] = int_to_bcd(log % 75); | |
1030 | } | |
1031 | ||
1032 | ||
1033 | /* | |
1034 | * Convert an MSF format to a logical sector. | |
1035 | */ | |
1036 | static unsigned int msf_to_log(unsigned char *msf) | |
1037 | { | |
1038 | unsigned int log; | |
1039 | ||
1040 | ||
1041 | log = msf[2]; | |
1042 | log += msf[1] * 75; | |
1043 | log += msf[0] * 4500; | |
1044 | log = log - LOG_START_OFFSET; | |
1045 | ||
1046 | return log; | |
1047 | } | |
1048 | ||
1049 | ||
1050 | /* | |
1051 | * Take in integer size value and put it into a buffer like | |
1052 | * the drive would want to see a number-of-sector value. | |
1053 | */ | |
1054 | static void size_to_buf(unsigned int size, unsigned char *buf) | |
1055 | { | |
1056 | buf[0] = size / 65536; | |
1057 | size = size % 65536; | |
1058 | buf[1] = size / 256; | |
1059 | buf[2] = size % 256; | |
1060 | } | |
1061 | ||
1062 | /* Starts a read operation. Returns 0 on success and 1 on failure. | |
1063 | The read operation used here allows multiple sequential sectors | |
1064 | to be read and status returned for each sector. The driver will | |
1065 | read the output one at a time as the requests come and abort the | |
1066 | operation if the requested sector is not the next one from the | |
1067 | drive. */ | |
1068 | static int | |
1069 | start_request(unsigned int sector, unsigned int nsect) | |
1070 | { | |
1071 | unsigned char params[6]; | |
1072 | unsigned long retry_count; | |
1073 | ||
1074 | ||
1075 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1076 | log_to_msf(sector, params); | |
1077 | size_to_buf(nsect, ¶ms[3]); | |
1078 | ||
1079 | /* | |
1080 | * Clear any outstanding attentions and wait for the drive to | |
1081 | * complete any pending operations. | |
1082 | */ | |
1083 | while (handle_sony_cd_attention()); | |
1084 | ||
1085 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
1086 | while (time_before(jiffies, retry_count) && (is_busy())) { | |
1087 | sony_sleep(); | |
1088 | ||
1089 | while (handle_sony_cd_attention()); | |
1090 | } | |
1091 | ||
1092 | if (is_busy()) { | |
1093 | printk(KERN_NOTICE PFX "Timeout while waiting " | |
1094 | "to issue command\n"); | |
1095 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
1096 | return 1; | |
1097 | } else { | |
1098 | /* Issue the command */ | |
1099 | clear_result_ready(); | |
1100 | clear_param_reg(); | |
1101 | ||
1102 | write_params(params, 6); | |
1103 | write_cmd(SONY_READ_BLKERR_STAT_CMD); | |
1104 | ||
1105 | sony_blocks_left = nsect * 4; | |
1106 | sony_next_block = sector * 4; | |
1107 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
1108 | return 0; | |
1109 | } | |
1110 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
1111 | } | |
1112 | ||
1113 | /* Abort a pending read operation. Clear all the drive status variables. */ | |
1114 | static void abort_read(void) | |
1115 | { | |
1116 | unsigned char result_reg[2]; | |
1117 | int result_size; | |
1118 | volatile int val; | |
1119 | ||
1120 | ||
1121 | do_sony_cd_cmd(SONY_ABORT_CMD, NULL, 0, result_reg, &result_size); | |
1122 | if ((result_reg[0] & 0xf0) == 0x20) { | |
1123 | printk(KERN_ERR PFX "Aborting read, %s error\n", | |
1124 | translate_error(result_reg[1])); | |
1125 | } | |
1126 | ||
1127 | while (is_result_reg_not_empty()) { | |
1128 | val = read_result_register(); | |
1129 | } | |
1130 | clear_data_ready(); | |
1131 | clear_result_ready(); | |
1132 | /* Clear out the data */ | |
1133 | while (is_data_requested()) { | |
1134 | val = read_data_register(); | |
1135 | } | |
1136 | ||
1137 | sony_blocks_left = 0; | |
1138 | } | |
1139 | ||
1140 | /* Called when the timer times out. This will abort the | |
1141 | pending read operation. */ | |
1142 | static void handle_abort_timeout(unsigned long data) | |
1143 | { | |
1144 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1145 | /* If it is in use, ignore it. */ | |
1146 | if (down_trylock(&sony_sem) == 0) { | |
1147 | /* We can't use abort_read(), because it will sleep | |
1148 | or schedule in the timer interrupt. Just start | |
1149 | the operation, finish it on the next access to | |
1150 | the drive. */ | |
1151 | clear_result_ready(); | |
1152 | clear_param_reg(); | |
1153 | write_cmd(SONY_ABORT_CMD); | |
1154 | ||
1155 | sony_blocks_left = 0; | |
1156 | abort_read_started = 1; | |
1157 | up(&sony_sem); | |
1158 | } | |
1159 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); | |
1160 | } | |
1161 | ||
1162 | /* Actually get one sector of data from the drive. */ | |
1163 | static void | |
1164 | input_data_sector(char *buffer) | |
1165 | { | |
1166 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1167 | ||
1168 | /* If an XA disk on a CDU31A, skip the first 12 bytes of data from | |
1169 | the disk. The real data is after that. We can use audio_buffer. */ | |
1170 | if (sony_xa_mode) | |
1171 | insb(sony_cd_read_reg, audio_buffer, CD_XA_HEAD); | |
1172 | ||
1173 | clear_data_ready(); | |
1174 | ||
1175 | insb(sony_cd_read_reg, buffer, 2048); | |
1176 | ||
1177 | /* If an XA disk, we have to clear out the rest of the unused | |
1178 | error correction data. We can use audio_buffer for that. */ | |
1179 | if (sony_xa_mode) | |
1180 | insb(sony_cd_read_reg, audio_buffer, CD_XA_TAIL); | |
1181 | ||
1182 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); | |
1183 | } | |
1184 | ||
1185 | /* read data from the drive. Note the nsect must be <= 4. */ | |
1186 | static void | |
1187 | read_data_block(char *buffer, | |
1188 | unsigned int block, | |
1189 | unsigned int nblocks, | |
1190 | unsigned char res_reg[], int *res_size) | |
1191 | { | |
1192 | unsigned long retry_count; | |
1193 | ||
1194 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1195 | ||
1196 | res_reg[0] = 0; | |
1197 | res_reg[1] = 0; | |
1198 | *res_size = 0; | |
1199 | ||
1200 | /* Wait for the drive to tell us we have something */ | |
1201 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
1202 | while (time_before(jiffies, retry_count) && !(is_data_ready())) { | |
1203 | while (handle_sony_cd_attention()); | |
1204 | ||
1205 | sony_sleep(); | |
1206 | } | |
1207 | if (!(is_data_ready())) { | |
1208 | if (is_result_ready()) { | |
1209 | get_result(res_reg, res_size); | |
1210 | if ((res_reg[0] & 0xf0) != 0x20) { | |
1211 | printk(KERN_NOTICE PFX "Got result that should" | |
1212 | " have been error: %d\n", res_reg[0]); | |
1213 | res_reg[0] = 0x20; | |
1214 | res_reg[1] = SONY_BAD_DATA_ERR; | |
1215 | *res_size = 2; | |
1216 | } | |
1217 | abort_read(); | |
1218 | } else { | |
1219 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
1220 | res_reg[0] = 0x20; | |
1221 | res_reg[1] = SONY_TIMEOUT_OP_ERR; | |
1222 | *res_size = 2; | |
1223 | abort_read(); | |
1224 | } | |
1225 | } else { | |
1226 | input_data_sector(buffer); | |
1227 | sony_blocks_left -= nblocks; | |
1228 | sony_next_block += nblocks; | |
1229 | ||
1230 | /* Wait for the status from the drive. */ | |
1231 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
1232 | while (time_before(jiffies, retry_count) | |
1233 | && !(is_result_ready())) { | |
1234 | while (handle_sony_cd_attention()); | |
1235 | ||
1236 | sony_sleep(); | |
1237 | } | |
1238 | ||
1239 | if (!is_result_ready()) { | |
1240 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
1241 | res_reg[0] = 0x20; | |
1242 | res_reg[1] = SONY_TIMEOUT_OP_ERR; | |
1243 | *res_size = 2; | |
1244 | abort_read(); | |
1245 | } else { | |
1246 | get_result(res_reg, res_size); | |
1247 | ||
1248 | /* If we got a buffer status, handle that. */ | |
1249 | if ((res_reg[0] & 0xf0) == 0x50) { | |
1250 | ||
1251 | if ((res_reg[0] == | |
1252 | SONY_NO_CIRC_ERR_BLK_STAT) | |
1253 | || (res_reg[0] == | |
1254 | SONY_NO_LECC_ERR_BLK_STAT) | |
1255 | || (res_reg[0] == | |
1256 | SONY_RECOV_LECC_ERR_BLK_STAT)) { | |
1257 | /* nothing here */ | |
1258 | } else { | |
1259 | printk(KERN_ERR PFX "Data block " | |
1260 | "error: 0x%x\n", res_reg[0]); | |
1261 | res_reg[0] = 0x20; | |
1262 | res_reg[1] = SONY_BAD_DATA_ERR; | |
1263 | *res_size = 2; | |
1264 | } | |
1265 | ||
1266 | /* Final transfer is done for read command, get final result. */ | |
1267 | if (sony_blocks_left == 0) { | |
1268 | get_result(res_reg, res_size); | |
1269 | } | |
1270 | } else if ((res_reg[0] & 0xf0) != 0x20) { | |
1271 | /* The drive gave me bad status, I don't know what to do. | |
1272 | Reset the driver and return an error. */ | |
1273 | printk(KERN_ERR PFX "Invalid block " | |
1274 | "status: 0x%x\n", res_reg[0]); | |
1275 | restart_on_error(); | |
1276 | res_reg[0] = 0x20; | |
1277 | res_reg[1] = SONY_BAD_DATA_ERR; | |
1278 | *res_size = 2; | |
1279 | } | |
1280 | } | |
1281 | } | |
1282 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
1283 | } | |
1284 | ||
1285 | ||
1286 | /* | |
1287 | * The OS calls this to perform a read or write operation to the drive. | |
1288 | * Write obviously fail. Reads to a read ahead of sony_buffer_size | |
1289 | * bytes to help speed operations. This especially helps since the OS | |
1290 | * uses 1024 byte blocks and the drive uses 2048 byte blocks. Since most | |
1291 | * data access on a CD is done sequentially, this saves a lot of operations. | |
1292 | */ | |
1293 | static void do_cdu31a_request(request_queue_t * q) | |
1294 | { | |
1295 | struct request *req; | |
1296 | int block, nblock, num_retries; | |
1297 | unsigned char res_reg[12]; | |
1298 | unsigned int res_size; | |
1299 | ||
1300 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1301 | ||
1302 | spin_unlock_irq(q->queue_lock); | |
1303 | if (down_interruptible(&sony_sem)) { | |
1304 | spin_lock_irq(q->queue_lock); | |
1305 | return; | |
1306 | } | |
1307 | ||
1308 | /* Get drive status before doing anything. */ | |
1309 | while (handle_sony_cd_attention()); | |
1310 | ||
1311 | /* Make sure we have a valid TOC. */ | |
1312 | sony_get_toc(); | |
1313 | ||
1314 | ||
1315 | /* Make sure the timer is cancelled. */ | |
1316 | del_timer(&cdu31a_abort_timer); | |
1317 | ||
1318 | while (1) { | |
1319 | /* | |
1320 | * The beginning here is stolen from the hard disk driver. I hope | |
1321 | * it's right. | |
1322 | */ | |
1323 | req = elv_next_request(q); | |
1324 | if (!req) | |
1325 | goto end_do_cdu31a_request; | |
1326 | ||
1327 | if (!sony_spun_up) | |
1328 | scd_spinup(); | |
1329 | ||
1330 | block = req->sector; | |
1331 | nblock = req->nr_sectors; | |
1332 | pr_debug(PFX "request at block %d, length %d blocks\n", | |
1333 | block, nblock); | |
1334 | if (!sony_toc_read) { | |
1335 | printk(KERN_NOTICE PFX "TOC not read\n"); | |
1336 | end_request(req, 0); | |
1337 | continue; | |
1338 | } | |
1339 | ||
1340 | /* WTF??? */ | |
1341 | if (!(req->flags & REQ_CMD)) | |
1342 | continue; | |
1343 | if (rq_data_dir(req) == WRITE) { | |
1344 | end_request(req, 0); | |
1345 | continue; | |
1346 | } | |
1347 | ||
1348 | /* | |
1349 | * If the block address is invalid or the request goes beyond the end of | |
1350 | * the media, return an error. | |
1351 | */ | |
1352 | if (((block + nblock) / 4) >= sony_toc.lead_out_start_lba) { | |
1353 | printk(KERN_NOTICE PFX "Request past end of media\n"); | |
1354 | end_request(req, 0); | |
1355 | continue; | |
1356 | } | |
1357 | ||
1358 | if (nblock > 4) | |
1359 | nblock = 4; | |
1360 | num_retries = 0; | |
1361 | ||
1362 | try_read_again: | |
1363 | while (handle_sony_cd_attention()); | |
1364 | ||
1365 | if (!sony_toc_read) { | |
1366 | printk(KERN_NOTICE PFX "TOC not read\n"); | |
1367 | end_request(req, 0); | |
1368 | continue; | |
1369 | } | |
1370 | ||
1371 | /* If no data is left to be read from the drive, start the | |
1372 | next request. */ | |
1373 | if (sony_blocks_left == 0) { | |
1374 | if (start_request(block / 4, nblock / 4)) { | |
1375 | end_request(req, 0); | |
1376 | continue; | |
1377 | } | |
1378 | } | |
1379 | /* If the requested block is not the next one waiting in | |
1380 | the driver, abort the current operation and start a | |
1381 | new one. */ | |
1382 | else if (block != sony_next_block) { | |
1383 | pr_debug(PFX "Read for block %d, expected %d\n", | |
1384 | block, sony_next_block); | |
1385 | abort_read(); | |
1386 | if (!sony_toc_read) { | |
1387 | printk(KERN_NOTICE PFX "TOC not read\n"); | |
1388 | end_request(req, 0); | |
1389 | continue; | |
1390 | } | |
1391 | if (start_request(block / 4, nblock / 4)) { | |
1392 | printk(KERN_NOTICE PFX "start request failed\n"); | |
1393 | end_request(req, 0); | |
1394 | continue; | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | read_data_block(req->buffer, block, nblock, res_reg, &res_size); | |
1399 | ||
1400 | if (res_reg[0] != 0x20) { | |
1401 | if (!end_that_request_first(req, 1, nblock)) { | |
1402 | spin_lock_irq(q->queue_lock); | |
1403 | blkdev_dequeue_request(req); | |
8ffdc655 | 1404 | end_that_request_last(req, 1); |
1da177e4 LT |
1405 | spin_unlock_irq(q->queue_lock); |
1406 | } | |
1407 | continue; | |
1408 | } | |
1409 | ||
1410 | if (num_retries > MAX_CDU31A_RETRIES) { | |
1411 | end_request(req, 0); | |
1412 | continue; | |
1413 | } | |
1414 | ||
1415 | num_retries++; | |
1416 | if (res_reg[1] == SONY_NOT_SPIN_ERR) { | |
1417 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, | |
1418 | &res_size); | |
1419 | } else { | |
1420 | printk(KERN_NOTICE PFX "%s error for block %d, nblock %d\n", | |
1421 | translate_error(res_reg[1]), block, nblock); | |
1422 | } | |
1423 | goto try_read_again; | |
1424 | } | |
1425 | end_do_cdu31a_request: | |
1426 | #if 0 | |
1427 | /* After finished, cancel any pending operations. */ | |
1428 | abort_read(); | |
1429 | #else | |
1430 | /* Start a timer to time out after a while to disable | |
1431 | the read. */ | |
1432 | cdu31a_abort_timer.expires = jiffies + 2 * HZ; /* Wait 2 seconds */ | |
1433 | add_timer(&cdu31a_abort_timer); | |
1434 | #endif | |
1435 | ||
1436 | up(&sony_sem); | |
1437 | spin_lock_irq(q->queue_lock); | |
1438 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); | |
1439 | } | |
1440 | ||
1441 | ||
1442 | /* | |
1443 | * Read the table of contents from the drive and set up TOC if | |
1444 | * successful. | |
1445 | */ | |
1446 | static void sony_get_toc(void) | |
1447 | { | |
1448 | unsigned char res_reg[2]; | |
1449 | unsigned int res_size; | |
1450 | unsigned char parms[1]; | |
1451 | int session; | |
1452 | int num_spin_ups; | |
1453 | int totaltracks = 0; | |
1454 | int mint = 99; | |
1455 | int maxt = 0; | |
1456 | ||
1457 | pr_debug(PFX "Entering %s\n", __FUNCTION__); | |
1458 | ||
1459 | num_spin_ups = 0; | |
1460 | if (!sony_toc_read) { | |
1461 | respinup_on_gettoc: | |
1462 | /* Ignore the result, since it might error if spinning already. */ | |
1463 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, | |
1464 | &res_size); | |
1465 | ||
1466 | do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, | |
1467 | &res_size); | |
1468 | ||
1469 | /* The drive sometimes returns error 0. I don't know why, but ignore | |
1470 | it. It seems to mean the drive has already done the operation. */ | |
1471 | if ((res_size < 2) | |
1472 | || ((res_reg[0] != 0) && (res_reg[1] != 0))) { | |
1473 | /* If the drive is already playing, it's ok. */ | |
1474 | if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR) | |
1475 | || (res_reg[1] == 0)) { | |
1476 | goto gettoc_drive_spinning; | |
1477 | } | |
1478 | ||
1479 | /* If the drive says it is not spun up (even though we just did it!) | |
1480 | then retry the operation at least a few times. */ | |
1481 | if ((res_reg[1] == SONY_NOT_SPIN_ERR) | |
1482 | && (num_spin_ups < MAX_CDU31A_RETRIES)) { | |
1483 | num_spin_ups++; | |
1484 | goto respinup_on_gettoc; | |
1485 | } | |
1486 | ||
1487 | printk("cdu31a: Error reading TOC: %x %s\n", | |
1488 | res_reg[0], translate_error(res_reg[1])); | |
1489 | return; | |
1490 | } | |
1491 | ||
1492 | gettoc_drive_spinning: | |
1493 | ||
1494 | /* The idea here is we keep asking for sessions until the command | |
1495 | fails. Then we know what the last valid session on the disk is. | |
1496 | No need to check session 0, since session 0 is the same as session | |
1497 | 1; the command returns different information if you give it 0. | |
1498 | */ | |
1499 | #if DEBUG | |
1500 | memset(&sony_toc, 0x0e, sizeof(sony_toc)); | |
1501 | memset(&single_toc, 0x0f, sizeof(single_toc)); | |
1502 | #endif | |
1503 | session = 1; | |
1504 | while (1) { | |
1505 | /* This seems to slow things down enough to make it work. This | |
1506 | * appears to be a problem in do_sony_cd_cmd. This printk seems | |
1507 | * to address the symptoms... -Erik */ | |
1508 | pr_debug(PFX "Trying session %d\n", session); | |
1509 | parms[0] = session; | |
1510 | do_sony_cd_cmd(SONY_READ_TOC_SPEC_CMD, | |
1511 | parms, 1, res_reg, &res_size); | |
1512 | ||
1513 | pr_debug(PFX "%2.2x %2.2x\n", res_reg[0], res_reg[1]); | |
1514 | ||
1515 | if ((res_size < 2) | |
1516 | || ((res_reg[0] & 0xf0) == 0x20)) { | |
1517 | /* An error reading the TOC, this must be past the last session. */ | |
1518 | if (session == 1) | |
1519 | printk | |
1520 | ("Yikes! Couldn't read any sessions!"); | |
1521 | break; | |
1522 | } | |
1523 | pr_debug(PFX "Reading session %d\n", session); | |
1524 | ||
1525 | parms[0] = session; | |
1526 | do_sony_cd_cmd(SONY_REQ_TOC_DATA_SPEC_CMD, | |
1527 | parms, | |
1528 | 1, | |
1529 | (unsigned char *) &single_toc, | |
1530 | &res_size); | |
1531 | if ((res_size < 2) | |
1532 | || ((single_toc.exec_status[0] & 0xf0) == | |
1533 | 0x20)) { | |
1534 | printk(KERN_ERR PFX "Error reading " | |
1535 | "session %d: %x %s\n", | |
1536 | session, single_toc.exec_status[0], | |
1537 | translate_error(single_toc. | |
1538 | exec_status[1])); | |
1539 | /* An error reading the TOC. Return without sony_toc_read | |
1540 | set. */ | |
1541 | return; | |
1542 | } | |
1543 | pr_debug(PFX "add0 %01x, con0 %01x, poi0 %02x, " | |
1544 | "1st trk %d, dsktyp %x, dum0 %x\n", | |
1545 | single_toc.address0, single_toc.control0, | |
1546 | single_toc.point0, | |
1547 | bcd_to_int(single_toc.first_track_num), | |
1548 | single_toc.disk_type, single_toc.dummy0); | |
1549 | pr_debug(PFX "add1 %01x, con1 %01x, poi1 %02x, " | |
1550 | "lst trk %d, dummy1 %x, dum2 %x\n", | |
1551 | single_toc.address1, single_toc.control1, | |
1552 | single_toc.point1, | |
1553 | bcd_to_int(single_toc.last_track_num), | |
1554 | single_toc.dummy1, single_toc.dummy2); | |
1555 | pr_debug(PFX "add2 %01x, con2 %01x, poi2 %02x " | |
1556 | "leadout start min %d, sec %d, frame %d\n", | |
1557 | single_toc.address2, single_toc.control2, | |
1558 | single_toc.point2, | |
1559 | bcd_to_int(single_toc.lead_out_start_msf[0]), | |
1560 | bcd_to_int(single_toc.lead_out_start_msf[1]), | |
1561 | bcd_to_int(single_toc.lead_out_start_msf[2])); | |
1562 | if (res_size > 18 && single_toc.pointb0 > 0xaf) | |
1563 | pr_debug(PFX "addb0 %01x, conb0 %01x, poib0 %02x, nextsession min %d, sec %d, frame %d\n" | |
1564 | "#mode5_ptrs %02d, max_start_outer_leadout_msf min %d, sec %d, frame %d\n", | |
1565 | single_toc.addressb0, | |
1566 | single_toc.controlb0, | |
1567 | single_toc.pointb0, | |
1568 | bcd_to_int(single_toc. | |
1569 | next_poss_prog_area_msf | |
1570 | [0]), | |
1571 | bcd_to_int(single_toc. | |
1572 | next_poss_prog_area_msf | |
1573 | [1]), | |
1574 | bcd_to_int(single_toc. | |
1575 | next_poss_prog_area_msf | |
1576 | [2]), | |
1577 | single_toc.num_mode_5_pointers, | |
1578 | bcd_to_int(single_toc. | |
1579 | max_start_outer_leadout_msf | |
1580 | [0]), | |
1581 | bcd_to_int(single_toc. | |
1582 | max_start_outer_leadout_msf | |
1583 | [1]), | |
1584 | bcd_to_int(single_toc. | |
1585 | max_start_outer_leadout_msf | |
1586 | [2])); | |
1587 | if (res_size > 27 && single_toc.pointb1 > 0xaf) | |
1588 | pr_debug(PFX "addb1 %01x, conb1 %01x, poib1 %02x, %x %x %x %x #skipint_ptrs %d, #skiptrkassign %d %x\n", | |
1589 | single_toc.addressb1, | |
1590 | single_toc.controlb1, | |
1591 | single_toc.pointb1, | |
1592 | single_toc.dummyb0_1[0], | |
1593 | single_toc.dummyb0_1[1], | |
1594 | single_toc.dummyb0_1[2], | |
1595 | single_toc.dummyb0_1[3], | |
1596 | single_toc.num_skip_interval_pointers, | |
1597 | single_toc.num_skip_track_assignments, | |
1598 | single_toc.dummyb0_2); | |
1599 | if (res_size > 36 && single_toc.pointb2 > 0xaf) | |
1600 | pr_debug(PFX "addb2 %01x, conb2 %01x, poib2 %02x, %02x %02x %02x %02x %02x %02x %02x\n", | |
1601 | single_toc.addressb2, | |
1602 | single_toc.controlb2, | |
1603 | single_toc.pointb2, | |
1604 | single_toc.tracksb2[0], | |
1605 | single_toc.tracksb2[1], | |
1606 | single_toc.tracksb2[2], | |
1607 | single_toc.tracksb2[3], | |
1608 | single_toc.tracksb2[4], | |
1609 | single_toc.tracksb2[5], | |
1610 | single_toc.tracksb2[6]); | |
1611 | if (res_size > 45 && single_toc.pointb3 > 0xaf) | |
1612 | pr_debug(PFX "addb3 %01x, conb3 %01x, poib3 %02x, %02x %02x %02x %02x %02x %02x %02x\n", | |
1613 | single_toc.addressb3, | |
1614 | single_toc.controlb3, | |
1615 | single_toc.pointb3, | |
1616 | single_toc.tracksb3[0], | |
1617 | single_toc.tracksb3[1], | |
1618 | single_toc.tracksb3[2], | |
1619 | single_toc.tracksb3[3], | |
1620 | single_toc.tracksb3[4], | |
1621 | single_toc.tracksb3[5], | |
1622 | single_toc.tracksb3[6]); | |
1623 | if (res_size > 54 && single_toc.pointb4 > 0xaf) | |
1624 | pr_debug(PFX "addb4 %01x, conb4 %01x, poib4 %02x, %02x %02x %02x %02x %02x %02x %02x\n", | |
1625 | single_toc.addressb4, | |
1626 | single_toc.controlb4, | |
1627 | single_toc.pointb4, | |
1628 | single_toc.tracksb4[0], | |
1629 | single_toc.tracksb4[1], | |
1630 | single_toc.tracksb4[2], | |
1631 | single_toc.tracksb4[3], | |
1632 | single_toc.tracksb4[4], | |
1633 | single_toc.tracksb4[5], | |
1634 | single_toc.tracksb4[6]); | |
1635 | if (res_size > 63 && single_toc.pointc0 > 0xaf) | |
1636 | pr_debug(PFX "addc0 %01x, conc0 %01x, poic0 %02x, %02x %02x %02x %02x %02x %02x %02x\n", | |
1637 | single_toc.addressc0, | |
1638 | single_toc.controlc0, | |
1639 | single_toc.pointc0, | |
1640 | single_toc.dummyc0[0], | |
1641 | single_toc.dummyc0[1], | |
1642 | single_toc.dummyc0[2], | |
1643 | single_toc.dummyc0[3], | |
1644 | single_toc.dummyc0[4], | |
1645 | single_toc.dummyc0[5], | |
1646 | single_toc.dummyc0[6]); | |
1647 | #undef DEBUG | |
1648 | #define DEBUG 0 | |
1649 | ||
1650 | sony_toc.lead_out_start_msf[0] = | |
1651 | bcd_to_int(single_toc.lead_out_start_msf[0]); | |
1652 | sony_toc.lead_out_start_msf[1] = | |
1653 | bcd_to_int(single_toc.lead_out_start_msf[1]); | |
1654 | sony_toc.lead_out_start_msf[2] = | |
1655 | bcd_to_int(single_toc.lead_out_start_msf[2]); | |
1656 | sony_toc.lead_out_start_lba = | |
1657 | single_toc.lead_out_start_lba = | |
1658 | msf_to_log(sony_toc.lead_out_start_msf); | |
1659 | ||
1660 | /* For points that do not exist, move the data over them | |
1661 | to the right location. */ | |
1662 | if (single_toc.pointb0 != 0xb0) { | |
1663 | memmove(((char *) &single_toc) + 27, | |
1664 | ((char *) &single_toc) + 18, | |
1665 | res_size - 18); | |
1666 | res_size += 9; | |
1667 | } else if (res_size > 18) { | |
1668 | sony_toc.lead_out_start_msf[0] = | |
1669 | bcd_to_int(single_toc. | |
1670 | max_start_outer_leadout_msf | |
1671 | [0]); | |
1672 | sony_toc.lead_out_start_msf[1] = | |
1673 | bcd_to_int(single_toc. | |
1674 | max_start_outer_leadout_msf | |
1675 | [1]); | |
1676 | sony_toc.lead_out_start_msf[2] = | |
1677 | bcd_to_int(single_toc. | |
1678 | max_start_outer_leadout_msf | |
1679 | [2]); | |
1680 | sony_toc.lead_out_start_lba = | |
1681 | msf_to_log(sony_toc. | |
1682 | lead_out_start_msf); | |
1683 | } | |
1684 | if (single_toc.pointb1 != 0xb1) { | |
1685 | memmove(((char *) &single_toc) + 36, | |
1686 | ((char *) &single_toc) + 27, | |
1687 | res_size - 27); | |
1688 | res_size += 9; | |
1689 | } | |
1690 | if (single_toc.pointb2 != 0xb2) { | |
1691 | memmove(((char *) &single_toc) + 45, | |
1692 | ((char *) &single_toc) + 36, | |
1693 | res_size - 36); | |
1694 | res_size += 9; | |
1695 | } | |
1696 | if (single_toc.pointb3 != 0xb3) { | |
1697 | memmove(((char *) &single_toc) + 54, | |
1698 | ((char *) &single_toc) + 45, | |
1699 | res_size - 45); | |
1700 | res_size += 9; | |
1701 | } | |
1702 | if (single_toc.pointb4 != 0xb4) { | |
1703 | memmove(((char *) &single_toc) + 63, | |
1704 | ((char *) &single_toc) + 54, | |
1705 | res_size - 54); | |
1706 | res_size += 9; | |
1707 | } | |
1708 | if (single_toc.pointc0 != 0xc0) { | |
1709 | memmove(((char *) &single_toc) + 72, | |
1710 | ((char *) &single_toc) + 63, | |
1711 | res_size - 63); | |
1712 | res_size += 9; | |
1713 | } | |
1714 | #if DEBUG | |
1715 | printk(PRINT_INFO PFX "start track lba %u, " | |
1716 | "leadout start lba %u\n", | |
1717 | single_toc.start_track_lba, | |
1718 | single_toc.lead_out_start_lba); | |
1719 | { | |
1720 | int i; | |
1721 | for (i = 0; | |
1722 | i < | |
1723 | 1 + | |
1724 | bcd_to_int(single_toc.last_track_num) | |
1725 | - | |
1726 | bcd_to_int(single_toc. | |
1727 | first_track_num); i++) { | |
1728 | printk(KERN_INFO PFX "trk %02d: add 0x%01x, con 0x%01x, track %02d, start min %02d, sec %02d, frame %02d\n", | |
1729 | i, | |
1730 | single_toc.tracks[i].address, | |
1731 | single_toc.tracks[i].control, | |
1732 | bcd_to_int(single_toc. | |
1733 | tracks[i].track), | |
1734 | bcd_to_int(single_toc. | |
1735 | tracks[i]. | |
1736 | track_start_msf | |
1737 | [0]), | |
1738 | bcd_to_int(single_toc. | |
1739 | tracks[i]. | |
1740 | track_start_msf | |
1741 | [1]), | |
1742 | bcd_to_int(single_toc. | |
1743 | tracks[i]. | |
1744 | track_start_msf | |
1745 | [2])); | |
1746 | if (mint > | |
1747 | bcd_to_int(single_toc. | |
1748 | tracks[i].track)) | |
1749 | mint = | |
1750 | bcd_to_int(single_toc. | |
1751 | tracks[i]. | |
1752 | track); | |
1753 | if (maxt < | |
1754 | bcd_to_int(single_toc. | |
1755 | tracks[i].track)) | |
1756 | maxt = | |
1757 | bcd_to_int(single_toc. | |
1758 | tracks[i]. | |
1759 | track); | |
1760 | } | |
1761 | printk(KERN_INFO PFX "min track number %d, " | |
1762 | "max track number %d\n", | |
1763 | mint, maxt); | |
1764 | } | |
1765 | #endif | |
1766 | ||
1767 | /* prepare a special table of contents for a CD-I disc. They don't have one. */ | |
1768 | if (single_toc.disk_type == 0x10 && | |
1769 | single_toc.first_track_num == 2 && | |
1770 | single_toc.last_track_num == 2 /* CD-I */ ) { | |
1771 | sony_toc.tracks[totaltracks].address = 1; | |
1772 | sony_toc.tracks[totaltracks].control = 4; /* force data tracks */ | |
1773 | sony_toc.tracks[totaltracks].track = 1; | |
1774 | sony_toc.tracks[totaltracks]. | |
1775 | track_start_msf[0] = 0; | |
1776 | sony_toc.tracks[totaltracks]. | |
1777 | track_start_msf[1] = 2; | |
1778 | sony_toc.tracks[totaltracks]. | |
1779 | track_start_msf[2] = 0; | |
1780 | mint = maxt = 1; | |
1781 | totaltracks++; | |
1782 | } else | |
1783 | /* gather track entries from this session */ | |
1784 | { | |
1785 | int i; | |
1786 | for (i = 0; | |
1787 | i < | |
1788 | 1 + | |
1789 | bcd_to_int(single_toc.last_track_num) | |
1790 | - | |
1791 | bcd_to_int(single_toc. | |
1792 | first_track_num); | |
1793 | i++, totaltracks++) { | |
1794 | sony_toc.tracks[totaltracks]. | |
1795 | address = | |
1796 | single_toc.tracks[i].address; | |
1797 | sony_toc.tracks[totaltracks]. | |
1798 | control = | |
1799 | single_toc.tracks[i].control; | |
1800 | sony_toc.tracks[totaltracks]. | |
1801 | track = | |
1802 | bcd_to_int(single_toc. | |
1803 | tracks[i].track); | |
1804 | sony_toc.tracks[totaltracks]. | |
1805 | track_start_msf[0] = | |
1806 | bcd_to_int(single_toc. | |
1807 | tracks[i]. | |
1808 | track_start_msf[0]); | |
1809 | sony_toc.tracks[totaltracks]. | |
1810 | track_start_msf[1] = | |
1811 | bcd_to_int(single_toc. | |
1812 | tracks[i]. | |
1813 | track_start_msf[1]); | |
1814 | sony_toc.tracks[totaltracks]. | |
1815 | track_start_msf[2] = | |
1816 | bcd_to_int(single_toc. | |
1817 | tracks[i]. | |
1818 | track_start_msf[2]); | |
1819 | if (i == 0) | |
1820 | single_toc. | |
1821 | start_track_lba = | |
1822 | msf_to_log(sony_toc. | |
1823 | tracks | |
1824 | [totaltracks]. | |
1825 | track_start_msf); | |
1826 | if (mint > | |
1827 | sony_toc.tracks[totaltracks]. | |
1828 | track) | |
1829 | mint = | |
1830 | sony_toc. | |
1831 | tracks[totaltracks]. | |
1832 | track; | |
1833 | if (maxt < | |
1834 | sony_toc.tracks[totaltracks]. | |
1835 | track) | |
1836 | maxt = | |
1837 | sony_toc. | |
1838 | tracks[totaltracks]. | |
1839 | track; | |
1840 | } | |
1841 | } | |
1842 | sony_toc.first_track_num = mint; | |
1843 | sony_toc.last_track_num = maxt; | |
1844 | /* Disk type of last session wins. For example: | |
1845 | CD-Extra has disk type 0 for the first session, so | |
1846 | a dumb HiFi CD player thinks it is a plain audio CD. | |
1847 | We are interested in the disk type of the last session, | |
1848 | which is 0x20 (XA) for CD-Extra, so we can access the | |
1849 | data track ... */ | |
1850 | sony_toc.disk_type = single_toc.disk_type; | |
1851 | sony_toc.sessions = session; | |
1852 | ||
1853 | /* don't believe everything :-) */ | |
1854 | if (session == 1) | |
1855 | single_toc.start_track_lba = 0; | |
1856 | sony_toc.start_track_lba = | |
1857 | single_toc.start_track_lba; | |
1858 | ||
1859 | if (session > 1 && single_toc.pointb0 == 0xb0 && | |
1860 | sony_toc.lead_out_start_lba == | |
1861 | single_toc.lead_out_start_lba) { | |
1862 | break; | |
1863 | } | |
1864 | ||
1865 | /* Let's not get carried away... */ | |
1866 | if (session > 40) { | |
1867 | printk(KERN_NOTICE PFX "too many sessions: " | |
1868 | "%d\n", session); | |
1869 | break; | |
1870 | } | |
1871 | session++; | |
1872 | } | |
1873 | sony_toc.track_entries = totaltracks; | |
1874 | /* add one entry for the LAST track with track number CDROM_LEADOUT */ | |
1875 | sony_toc.tracks[totaltracks].address = single_toc.address2; | |
1876 | sony_toc.tracks[totaltracks].control = single_toc.control2; | |
1877 | sony_toc.tracks[totaltracks].track = CDROM_LEADOUT; | |
1878 | sony_toc.tracks[totaltracks].track_start_msf[0] = | |
1879 | sony_toc.lead_out_start_msf[0]; | |
1880 | sony_toc.tracks[totaltracks].track_start_msf[1] = | |
1881 | sony_toc.lead_out_start_msf[1]; | |
1882 | sony_toc.tracks[totaltracks].track_start_msf[2] = | |
1883 | sony_toc.lead_out_start_msf[2]; | |
1884 | ||
1885 | sony_toc_read = 1; | |
1886 | ||
1887 | pr_debug(PFX "Disk session %d, start track: %d, " | |
1888 | "stop track: %d\n", | |
1889 | session, single_toc.start_track_lba, | |
1890 | single_toc.lead_out_start_lba); | |
1891 | } | |
1892 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); | |
1893 | } | |
1894 | ||
1895 | ||
1896 | /* | |
1897 | * Uniform cdrom interface function | |
1898 | * return multisession offset and sector information | |
1899 | */ | |
1900 | static int scd_get_last_session(struct cdrom_device_info *cdi, | |
1901 | struct cdrom_multisession *ms_info) | |
1902 | { | |
1903 | if (ms_info == NULL) | |
1904 | return 1; | |
1905 | ||
1906 | if (!sony_toc_read) { | |
1907 | if (down_interruptible(&sony_sem)) | |
1908 | return -ERESTARTSYS; | |
1909 | sony_get_toc(); | |
1910 | up(&sony_sem); | |
1911 | } | |
1912 | ||
1913 | ms_info->addr_format = CDROM_LBA; | |
1914 | ms_info->addr.lba = sony_toc.start_track_lba; | |
1915 | ms_info->xa_flag = sony_toc.disk_type == SONY_XA_DISK_TYPE || | |
1916 | sony_toc.disk_type == 0x10 /* CDI */ ; | |
1917 | ||
1918 | return 0; | |
1919 | } | |
1920 | ||
1921 | /* | |
1922 | * Search for a specific track in the table of contents. | |
1923 | */ | |
1924 | static int find_track(int track) | |
1925 | { | |
1926 | int i; | |
1927 | ||
1928 | for (i = 0; i <= sony_toc.track_entries; i++) { | |
1929 | if (sony_toc.tracks[i].track == track) { | |
1930 | return i; | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | return -1; | |
1935 | } | |
1936 | ||
1937 | ||
1938 | /* | |
1939 | * Read the subcode and put it in last_sony_subcode for future use. | |
1940 | */ | |
1941 | static int read_subcode(void) | |
1942 | { | |
1943 | unsigned int res_size; | |
1944 | ||
1945 | ||
1946 | do_sony_cd_cmd(SONY_REQ_SUBCODE_ADDRESS_CMD, | |
1947 | NULL, | |
1948 | 0, (unsigned char *) &last_sony_subcode, &res_size); | |
1949 | if ((res_size < 2) | |
1950 | || ((last_sony_subcode.exec_status[0] & 0xf0) == 0x20)) { | |
1951 | printk(KERN_ERR PFX "Sony CDROM error %s (read_subcode)\n", | |
1952 | translate_error(last_sony_subcode.exec_status[1])); | |
1953 | return -EIO; | |
1954 | } | |
1955 | ||
1956 | last_sony_subcode.track_num = | |
1957 | bcd_to_int(last_sony_subcode.track_num); | |
1958 | last_sony_subcode.index_num = | |
1959 | bcd_to_int(last_sony_subcode.index_num); | |
1960 | last_sony_subcode.abs_msf[0] = | |
1961 | bcd_to_int(last_sony_subcode.abs_msf[0]); | |
1962 | last_sony_subcode.abs_msf[1] = | |
1963 | bcd_to_int(last_sony_subcode.abs_msf[1]); | |
1964 | last_sony_subcode.abs_msf[2] = | |
1965 | bcd_to_int(last_sony_subcode.abs_msf[2]); | |
1966 | ||
1967 | last_sony_subcode.rel_msf[0] = | |
1968 | bcd_to_int(last_sony_subcode.rel_msf[0]); | |
1969 | last_sony_subcode.rel_msf[1] = | |
1970 | bcd_to_int(last_sony_subcode.rel_msf[1]); | |
1971 | last_sony_subcode.rel_msf[2] = | |
1972 | bcd_to_int(last_sony_subcode.rel_msf[2]); | |
1973 | return 0; | |
1974 | } | |
1975 | ||
1976 | /* | |
1977 | * Uniform cdrom interface function | |
1978 | * return the media catalog number found on some older audio cds | |
1979 | */ | |
1980 | static int | |
1981 | scd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn) | |
1982 | { | |
1983 | unsigned char resbuffer[2 + 14]; | |
1984 | unsigned char *mcnp = mcn->medium_catalog_number; | |
1985 | unsigned char *resp = resbuffer + 3; | |
1986 | unsigned int res_size; | |
1987 | ||
1988 | memset(mcn->medium_catalog_number, 0, 14); | |
1989 | if (down_interruptible(&sony_sem)) | |
1990 | return -ERESTARTSYS; | |
1991 | do_sony_cd_cmd(SONY_REQ_UPC_EAN_CMD, | |
1992 | NULL, 0, resbuffer, &res_size); | |
1993 | up(&sony_sem); | |
1994 | if ((res_size < 2) || ((resbuffer[0] & 0xf0) == 0x20)); | |
1995 | else { | |
1996 | /* packed bcd to single ASCII digits */ | |
1997 | *mcnp++ = (*resp >> 4) + '0'; | |
1998 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
1999 | *mcnp++ = (*resp >> 4) + '0'; | |
2000 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
2001 | *mcnp++ = (*resp >> 4) + '0'; | |
2002 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
2003 | *mcnp++ = (*resp >> 4) + '0'; | |
2004 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
2005 | *mcnp++ = (*resp >> 4) + '0'; | |
2006 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
2007 | *mcnp++ = (*resp >> 4) + '0'; | |
2008 | *mcnp++ = (*resp++ & 0x0f) + '0'; | |
2009 | *mcnp++ = (*resp >> 4) + '0'; | |
2010 | } | |
2011 | *mcnp = '\0'; | |
2012 | return 0; | |
2013 | } | |
2014 | ||
2015 | ||
2016 | /* | |
2017 | * Get the subchannel info like the CDROMSUBCHNL command wants to see it. If | |
2018 | * the drive is playing, the subchannel needs to be read (since it would be | |
2019 | * changing). If the drive is paused or completed, the subcode information has | |
2020 | * already been stored, just use that. The ioctl call wants things in decimal | |
2021 | * (not BCD), so all the conversions are done. | |
2022 | */ | |
2023 | static int sony_get_subchnl_info(struct cdrom_subchnl *schi) | |
2024 | { | |
2025 | /* Get attention stuff */ | |
2026 | while (handle_sony_cd_attention()); | |
2027 | ||
2028 | sony_get_toc(); | |
2029 | if (!sony_toc_read) { | |
2030 | return -EIO; | |
2031 | } | |
2032 | ||
2033 | switch (sony_audio_status) { | |
2034 | case CDROM_AUDIO_NO_STATUS: | |
2035 | case CDROM_AUDIO_PLAY: | |
2036 | if (read_subcode() < 0) { | |
2037 | return -EIO; | |
2038 | } | |
2039 | break; | |
2040 | ||
2041 | case CDROM_AUDIO_PAUSED: | |
2042 | case CDROM_AUDIO_COMPLETED: | |
2043 | break; | |
2044 | ||
2045 | #if 0 | |
2046 | case CDROM_AUDIO_NO_STATUS: | |
2047 | schi->cdsc_audiostatus = sony_audio_status; | |
2048 | return 0; | |
2049 | break; | |
2050 | #endif | |
2051 | case CDROM_AUDIO_INVALID: | |
2052 | case CDROM_AUDIO_ERROR: | |
2053 | default: | |
2054 | return -EIO; | |
2055 | } | |
2056 | ||
2057 | schi->cdsc_audiostatus = sony_audio_status; | |
2058 | schi->cdsc_adr = last_sony_subcode.address; | |
2059 | schi->cdsc_ctrl = last_sony_subcode.control; | |
2060 | schi->cdsc_trk = last_sony_subcode.track_num; | |
2061 | schi->cdsc_ind = last_sony_subcode.index_num; | |
2062 | if (schi->cdsc_format == CDROM_MSF) { | |
2063 | schi->cdsc_absaddr.msf.minute = | |
2064 | last_sony_subcode.abs_msf[0]; | |
2065 | schi->cdsc_absaddr.msf.second = | |
2066 | last_sony_subcode.abs_msf[1]; | |
2067 | schi->cdsc_absaddr.msf.frame = | |
2068 | last_sony_subcode.abs_msf[2]; | |
2069 | ||
2070 | schi->cdsc_reladdr.msf.minute = | |
2071 | last_sony_subcode.rel_msf[0]; | |
2072 | schi->cdsc_reladdr.msf.second = | |
2073 | last_sony_subcode.rel_msf[1]; | |
2074 | schi->cdsc_reladdr.msf.frame = | |
2075 | last_sony_subcode.rel_msf[2]; | |
2076 | } else if (schi->cdsc_format == CDROM_LBA) { | |
2077 | schi->cdsc_absaddr.lba = | |
2078 | msf_to_log(last_sony_subcode.abs_msf); | |
2079 | schi->cdsc_reladdr.lba = | |
2080 | msf_to_log(last_sony_subcode.rel_msf); | |
2081 | } | |
2082 | ||
2083 | return 0; | |
2084 | } | |
2085 | ||
2086 | /* Get audio data from the drive. This is fairly complex because I | |
2087 | am looking for status and data at the same time, but if I get status | |
2088 | then I just look for data. I need to get the status immediately so | |
2089 | the switch from audio to data tracks will happen quickly. */ | |
2090 | static void | |
2091 | read_audio_data(char *buffer, unsigned char res_reg[], int *res_size) | |
2092 | { | |
2093 | unsigned long retry_count; | |
2094 | int result_read; | |
2095 | ||
2096 | ||
2097 | res_reg[0] = 0; | |
2098 | res_reg[1] = 0; | |
2099 | *res_size = 0; | |
2100 | result_read = 0; | |
2101 | ||
2102 | /* Wait for the drive to tell us we have something */ | |
2103 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
2104 | continue_read_audio_wait: | |
2105 | while (time_before(jiffies, retry_count) && !(is_data_ready()) | |
2106 | && !(is_result_ready() || result_read)) { | |
2107 | while (handle_sony_cd_attention()); | |
2108 | ||
2109 | sony_sleep(); | |
2110 | } | |
2111 | if (!(is_data_ready())) { | |
2112 | if (is_result_ready() && !result_read) { | |
2113 | get_result(res_reg, res_size); | |
2114 | ||
2115 | /* Read block status and continue waiting for data. */ | |
2116 | if ((res_reg[0] & 0xf0) == 0x50) { | |
2117 | result_read = 1; | |
2118 | goto continue_read_audio_wait; | |
2119 | } | |
2120 | /* Invalid data from the drive. Shut down the operation. */ | |
2121 | else if ((res_reg[0] & 0xf0) != 0x20) { | |
2122 | printk(KERN_WARNING PFX "Got result that " | |
2123 | "should have been error: %d\n", | |
2124 | res_reg[0]); | |
2125 | res_reg[0] = 0x20; | |
2126 | res_reg[1] = SONY_BAD_DATA_ERR; | |
2127 | *res_size = 2; | |
2128 | } | |
2129 | abort_read(); | |
2130 | } else { | |
2131 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
2132 | res_reg[0] = 0x20; | |
2133 | res_reg[1] = SONY_TIMEOUT_OP_ERR; | |
2134 | *res_size = 2; | |
2135 | abort_read(); | |
2136 | } | |
2137 | } else { | |
2138 | clear_data_ready(); | |
2139 | ||
2140 | /* If data block, then get 2340 bytes offset by 12. */ | |
2141 | if (sony_raw_data_mode) { | |
2142 | insb(sony_cd_read_reg, buffer + CD_XA_HEAD, | |
2143 | CD_FRAMESIZE_RAW1); | |
2144 | } else { | |
2145 | /* Audio gets the whole 2352 bytes. */ | |
2146 | insb(sony_cd_read_reg, buffer, CD_FRAMESIZE_RAW); | |
2147 | } | |
2148 | ||
2149 | /* If I haven't already gotten the result, get it now. */ | |
2150 | if (!result_read) { | |
2151 | /* Wait for the drive to tell us we have something */ | |
2152 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; | |
2153 | while (time_before(jiffies, retry_count) | |
2154 | && !(is_result_ready())) { | |
2155 | while (handle_sony_cd_attention()); | |
2156 | ||
2157 | sony_sleep(); | |
2158 | } | |
2159 | ||
2160 | if (!is_result_ready()) { | |
2161 | pr_debug(PFX "timeout out %d\n", __LINE__); | |
2162 | res_reg[0] = 0x20; | |
2163 | res_reg[1] = SONY_TIMEOUT_OP_ERR; | |
2164 | *res_size = 2; | |
2165 | abort_read(); | |
2166 | return; | |
2167 | } else { | |
2168 | get_result(res_reg, res_size); | |
2169 | } | |
2170 | } | |
2171 | ||
2172 | if ((res_reg[0] & 0xf0) == 0x50) { | |
2173 | if ((res_reg[0] == SONY_NO_CIRC_ERR_BLK_STAT) | |
2174 | || (res_reg[0] == SONY_NO_LECC_ERR_BLK_STAT) | |
2175 | || (res_reg[0] == SONY_RECOV_LECC_ERR_BLK_STAT) | |
2176 | || (res_reg[0] == SONY_NO_ERR_DETECTION_STAT)) { | |
2177 | /* Ok, nothing to do. */ | |
2178 | } else { | |
2179 | printk(KERN_ERR PFX "Data block error: 0x%x\n", | |
2180 | res_reg[0]); | |
2181 | res_reg[0] = 0x20; | |
2182 | res_reg[1] = SONY_BAD_DATA_ERR; | |
2183 | *res_size = 2; | |
2184 | } | |
2185 | } else if ((res_reg[0] & 0xf0) != 0x20) { | |
2186 | /* The drive gave me bad status, I don't know what to do. | |
2187 | Reset the driver and return an error. */ | |
2188 | printk(KERN_NOTICE PFX "Invalid block status: 0x%x\n", | |
2189 | res_reg[0]); | |
2190 | restart_on_error(); | |
2191 | res_reg[0] = 0x20; | |
2192 | res_reg[1] = SONY_BAD_DATA_ERR; | |
2193 | *res_size = 2; | |
2194 | } | |
2195 | } | |
2196 | } | |
2197 | ||
2198 | /* Perform a raw data read. This will automatically detect the | |
2199 | track type and read the proper data (audio or data). */ | |
2200 | static int read_audio(struct cdrom_read_audio *ra) | |
2201 | { | |
2202 | int retval; | |
2203 | unsigned char params[2]; | |
2204 | unsigned char res_reg[12]; | |
2205 | unsigned int res_size; | |
2206 | unsigned int cframe; | |
2207 | ||
2208 | if (down_interruptible(&sony_sem)) | |
2209 | return -ERESTARTSYS; | |
2210 | if (!sony_spun_up) | |
2211 | scd_spinup(); | |
2212 | ||
2213 | /* Set the drive to do raw operations. */ | |
2214 | params[0] = SONY_SD_DECODE_PARAM; | |
2215 | params[1] = 0x06 | sony_raw_data_mode; | |
2216 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
2217 | params, 2, res_reg, &res_size); | |
2218 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { | |
2219 | printk(KERN_ERR PFX "Unable to set decode params: 0x%2.2x\n", | |
2220 | res_reg[1]); | |
2221 | retval = -EIO; | |
2222 | goto out_up; | |
2223 | } | |
2224 | ||
2225 | /* From here down, we have to goto exit_read_audio instead of returning | |
2226 | because the drive parameters have to be set back to data before | |
2227 | return. */ | |
2228 | ||
2229 | retval = 0; | |
2230 | if (start_request(ra->addr.lba, ra->nframes)) { | |
2231 | retval = -EIO; | |
2232 | goto exit_read_audio; | |
2233 | } | |
2234 | ||
2235 | /* For every requested frame. */ | |
2236 | cframe = 0; | |
2237 | while (cframe < ra->nframes) { | |
2238 | read_audio_data(audio_buffer, res_reg, &res_size); | |
2239 | if ((res_reg[0] & 0xf0) == 0x20) { | |
2240 | if (res_reg[1] == SONY_BAD_DATA_ERR) { | |
2241 | printk(KERN_ERR PFX "Data error on audio " | |
2242 | "sector %d\n", | |
2243 | ra->addr.lba + cframe); | |
2244 | } else if (res_reg[1] == SONY_ILL_TRACK_R_ERR) { | |
2245 | /* Illegal track type, change track types and start over. */ | |
2246 | sony_raw_data_mode = | |
2247 | (sony_raw_data_mode) ? 0 : 1; | |
2248 | ||
2249 | /* Set the drive mode. */ | |
2250 | params[0] = SONY_SD_DECODE_PARAM; | |
2251 | params[1] = 0x06 | sony_raw_data_mode; | |
2252 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
2253 | params, | |
2254 | 2, res_reg, &res_size); | |
2255 | if ((res_size < 2) | |
2256 | || ((res_reg[0] & 0xf0) == 0x20)) { | |
2257 | printk(KERN_ERR PFX "Unable to set " | |
2258 | "decode params: 0x%2.2x\n", | |
2259 | res_reg[1]); | |
2260 | retval = -EIO; | |
2261 | goto exit_read_audio; | |
2262 | } | |
2263 | ||
2264 | /* Restart the request on the current frame. */ | |
2265 | if (start_request | |
2266 | (ra->addr.lba + cframe, | |
2267 | ra->nframes - cframe)) { | |
2268 | retval = -EIO; | |
2269 | goto exit_read_audio; | |
2270 | } | |
2271 | ||
2272 | /* Don't go back to the top because don't want to get into | |
2273 | and infinite loop. A lot of code gets duplicated, but | |
2274 | that's no big deal, I don't guess. */ | |
2275 | read_audio_data(audio_buffer, res_reg, | |
2276 | &res_size); | |
2277 | if ((res_reg[0] & 0xf0) == 0x20) { | |
2278 | if (res_reg[1] == | |
2279 | SONY_BAD_DATA_ERR) { | |
2280 | printk(KERN_ERR PFX "Data error" | |
2281 | " on audio sector %d\n", | |
2282 | ra->addr.lba + | |
2283 | cframe); | |
2284 | } else { | |
2285 | printk(KERN_ERR PFX "Error reading audio data on sector %d: %s\n", | |
2286 | ra->addr.lba + cframe, | |
2287 | translate_error | |
2288 | (res_reg[1])); | |
2289 | retval = -EIO; | |
2290 | goto exit_read_audio; | |
2291 | } | |
2292 | } else if (copy_to_user(ra->buf + | |
2293 | (CD_FRAMESIZE_RAW | |
2294 | * cframe), | |
2295 | audio_buffer, | |
2296 | CD_FRAMESIZE_RAW)) { | |
2297 | retval = -EFAULT; | |
2298 | goto exit_read_audio; | |
2299 | } | |
2300 | } else { | |
2301 | printk(KERN_ERR PFX "Error reading audio " | |
2302 | "data on sector %d: %s\n", | |
2303 | ra->addr.lba + cframe, | |
2304 | translate_error(res_reg[1])); | |
2305 | retval = -EIO; | |
2306 | goto exit_read_audio; | |
2307 | } | |
2308 | } else if (copy_to_user(ra->buf + (CD_FRAMESIZE_RAW * cframe), | |
2309 | (char *)audio_buffer, | |
2310 | CD_FRAMESIZE_RAW)) { | |
2311 | retval = -EFAULT; | |
2312 | goto exit_read_audio; | |
2313 | } | |
2314 | ||
2315 | cframe++; | |
2316 | } | |
2317 | ||
2318 | get_result(res_reg, &res_size); | |
2319 | if ((res_reg[0] & 0xf0) == 0x20) { | |
2320 | printk(KERN_ERR PFX "Error return from audio read: %s\n", | |
2321 | translate_error(res_reg[1])); | |
2322 | retval = -EIO; | |
2323 | goto exit_read_audio; | |
2324 | } | |
2325 | ||
2326 | exit_read_audio: | |
2327 | ||
2328 | /* Set the drive mode back to the proper one for the disk. */ | |
2329 | params[0] = SONY_SD_DECODE_PARAM; | |
2330 | if (!sony_xa_mode) { | |
2331 | params[1] = 0x0f; | |
2332 | } else { | |
2333 | params[1] = 0x07; | |
2334 | } | |
2335 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
2336 | params, 2, res_reg, &res_size); | |
2337 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { | |
2338 | printk(KERN_ERR PFX "Unable to reset decode params: 0x%2.2x\n", | |
2339 | res_reg[1]); | |
2340 | retval = -EIO; | |
2341 | } | |
2342 | ||
2343 | out_up: | |
2344 | up(&sony_sem); | |
2345 | ||
2346 | return retval; | |
2347 | } | |
2348 | ||
2349 | static int | |
2350 | do_sony_cd_cmd_chk(const char *name, | |
2351 | unsigned char cmd, | |
2352 | unsigned char *params, | |
2353 | unsigned int num_params, | |
2354 | unsigned char *result_buffer, unsigned int *result_size) | |
2355 | { | |
2356 | do_sony_cd_cmd(cmd, params, num_params, result_buffer, | |
2357 | result_size); | |
2358 | if ((*result_size < 2) || ((result_buffer[0] & 0xf0) == 0x20)) { | |
2359 | printk(KERN_ERR PFX "Error %s (CDROM%s)\n", | |
2360 | translate_error(result_buffer[1]), name); | |
2361 | return -EIO; | |
2362 | } | |
2363 | return 0; | |
2364 | } | |
2365 | ||
2366 | /* | |
2367 | * Uniform cdrom interface function | |
2368 | * open the tray | |
2369 | */ | |
2370 | static int scd_tray_move(struct cdrom_device_info *cdi, int position) | |
2371 | { | |
2372 | int retval; | |
2373 | ||
2374 | if (down_interruptible(&sony_sem)) | |
2375 | return -ERESTARTSYS; | |
2376 | if (position == 1 /* open tray */ ) { | |
2377 | unsigned char res_reg[12]; | |
2378 | unsigned int res_size; | |
2379 | ||
2380 | do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, | |
2381 | &res_size); | |
2382 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, | |
2383 | &res_size); | |
2384 | ||
2385 | sony_audio_status = CDROM_AUDIO_INVALID; | |
2386 | retval = do_sony_cd_cmd_chk("EJECT", SONY_EJECT_CMD, NULL, 0, | |
2387 | res_reg, &res_size); | |
2388 | } else { | |
2389 | if (0 == scd_spinup()) | |
2390 | sony_spun_up = 1; | |
2391 | retval = 0; | |
2392 | } | |
2393 | up(&sony_sem); | |
2394 | return retval; | |
2395 | } | |
2396 | ||
2397 | /* | |
2398 | * The big ugly ioctl handler. | |
2399 | */ | |
2400 | static int scd_audio_ioctl(struct cdrom_device_info *cdi, | |
2401 | unsigned int cmd, void *arg) | |
2402 | { | |
2403 | unsigned char res_reg[12]; | |
2404 | unsigned int res_size; | |
2405 | unsigned char params[7]; | |
2406 | int i, retval; | |
2407 | ||
2408 | if (down_interruptible(&sony_sem)) | |
2409 | return -ERESTARTSYS; | |
2410 | switch (cmd) { | |
2411 | case CDROMSTART: /* Spin up the drive */ | |
2412 | retval = do_sony_cd_cmd_chk("START", SONY_SPIN_UP_CMD, NULL, | |
2413 | 0, res_reg, &res_size); | |
2414 | break; | |
2415 | ||
2416 | case CDROMSTOP: /* Spin down the drive */ | |
2417 | do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, | |
2418 | &res_size); | |
2419 | ||
2420 | /* | |
2421 | * Spin the drive down, ignoring the error if the disk was | |
2422 | * already not spinning. | |
2423 | */ | |
2424 | sony_audio_status = CDROM_AUDIO_NO_STATUS; | |
2425 | retval = do_sony_cd_cmd_chk("STOP", SONY_SPIN_DOWN_CMD, NULL, | |
2426 | 0, res_reg, &res_size); | |
2427 | break; | |
2428 | ||
2429 | case CDROMPAUSE: /* Pause the drive */ | |
2430 | if (do_sony_cd_cmd_chk | |
2431 | ("PAUSE", SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, | |
2432 | &res_size)) { | |
2433 | retval = -EIO; | |
2434 | break; | |
2435 | } | |
2436 | /* Get the current position and save it for resuming */ | |
2437 | if (read_subcode() < 0) { | |
2438 | retval = -EIO; | |
2439 | break; | |
2440 | } | |
2441 | cur_pos_msf[0] = last_sony_subcode.abs_msf[0]; | |
2442 | cur_pos_msf[1] = last_sony_subcode.abs_msf[1]; | |
2443 | cur_pos_msf[2] = last_sony_subcode.abs_msf[2]; | |
2444 | sony_audio_status = CDROM_AUDIO_PAUSED; | |
2445 | retval = 0; | |
2446 | break; | |
2447 | ||
2448 | case CDROMRESUME: /* Start the drive after being paused */ | |
2449 | if (sony_audio_status != CDROM_AUDIO_PAUSED) { | |
2450 | retval = -EINVAL; | |
2451 | break; | |
2452 | } | |
2453 | ||
2454 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, | |
2455 | &res_size); | |
2456 | ||
2457 | /* Start the drive at the saved position. */ | |
2458 | params[1] = int_to_bcd(cur_pos_msf[0]); | |
2459 | params[2] = int_to_bcd(cur_pos_msf[1]); | |
2460 | params[3] = int_to_bcd(cur_pos_msf[2]); | |
2461 | params[4] = int_to_bcd(final_pos_msf[0]); | |
2462 | params[5] = int_to_bcd(final_pos_msf[1]); | |
2463 | params[6] = int_to_bcd(final_pos_msf[2]); | |
2464 | params[0] = 0x03; | |
2465 | if (do_sony_cd_cmd_chk | |
2466 | ("RESUME", SONY_AUDIO_PLAYBACK_CMD, params, 7, res_reg, | |
2467 | &res_size) < 0) { | |
2468 | retval = -EIO; | |
2469 | break; | |
2470 | } | |
2471 | sony_audio_status = CDROM_AUDIO_PLAY; | |
2472 | retval = 0; | |
2473 | break; | |
2474 | ||
2475 | case CDROMPLAYMSF: /* Play starting at the given MSF address. */ | |
2476 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, | |
2477 | &res_size); | |
2478 | ||
2479 | /* The parameters are given in int, must be converted */ | |
2480 | for (i = 1; i < 7; i++) { | |
2481 | params[i] = | |
2482 | int_to_bcd(((unsigned char *) arg)[i - 1]); | |
2483 | } | |
2484 | params[0] = 0x03; | |
2485 | if (do_sony_cd_cmd_chk | |
2486 | ("PLAYMSF", SONY_AUDIO_PLAYBACK_CMD, params, 7, | |
2487 | res_reg, &res_size) < 0) { | |
2488 | retval = -EIO; | |
2489 | break; | |
2490 | } | |
2491 | ||
2492 | /* Save the final position for pauses and resumes */ | |
2493 | final_pos_msf[0] = bcd_to_int(params[4]); | |
2494 | final_pos_msf[1] = bcd_to_int(params[5]); | |
2495 | final_pos_msf[2] = bcd_to_int(params[6]); | |
2496 | sony_audio_status = CDROM_AUDIO_PLAY; | |
2497 | retval = 0; | |
2498 | break; | |
2499 | ||
2500 | case CDROMREADTOCHDR: /* Read the table of contents header */ | |
2501 | { | |
2502 | struct cdrom_tochdr *hdr; | |
2503 | ||
2504 | sony_get_toc(); | |
2505 | if (!sony_toc_read) { | |
2506 | retval = -EIO; | |
2507 | break; | |
2508 | } | |
2509 | ||
2510 | hdr = (struct cdrom_tochdr *) arg; | |
2511 | hdr->cdth_trk0 = sony_toc.first_track_num; | |
2512 | hdr->cdth_trk1 = sony_toc.last_track_num; | |
2513 | } | |
2514 | retval = 0; | |
2515 | break; | |
2516 | ||
2517 | case CDROMREADTOCENTRY: /* Read a given table of contents entry */ | |
2518 | { | |
2519 | struct cdrom_tocentry *entry; | |
2520 | int track_idx; | |
2521 | unsigned char *msf_val = NULL; | |
2522 | ||
2523 | sony_get_toc(); | |
2524 | if (!sony_toc_read) { | |
2525 | retval = -EIO; | |
2526 | break; | |
2527 | } | |
2528 | ||
2529 | entry = (struct cdrom_tocentry *) arg; | |
2530 | ||
2531 | track_idx = find_track(entry->cdte_track); | |
2532 | if (track_idx < 0) { | |
2533 | retval = -EINVAL; | |
2534 | break; | |
2535 | } | |
2536 | ||
2537 | entry->cdte_adr = | |
2538 | sony_toc.tracks[track_idx].address; | |
2539 | entry->cdte_ctrl = | |
2540 | sony_toc.tracks[track_idx].control; | |
2541 | msf_val = | |
2542 | sony_toc.tracks[track_idx].track_start_msf; | |
2543 | ||
2544 | /* Logical buffer address or MSF format requested? */ | |
2545 | if (entry->cdte_format == CDROM_LBA) { | |
2546 | entry->cdte_addr.lba = msf_to_log(msf_val); | |
2547 | } else if (entry->cdte_format == CDROM_MSF) { | |
2548 | entry->cdte_addr.msf.minute = *msf_val; | |
2549 | entry->cdte_addr.msf.second = | |
2550 | *(msf_val + 1); | |
2551 | entry->cdte_addr.msf.frame = | |
2552 | *(msf_val + 2); | |
2553 | } | |
2554 | } | |
2555 | retval = 0; | |
2556 | break; | |
2557 | ||
2558 | case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */ | |
2559 | { | |
2560 | struct cdrom_ti *ti = (struct cdrom_ti *) arg; | |
2561 | int track_idx; | |
2562 | ||
2563 | sony_get_toc(); | |
2564 | if (!sony_toc_read) { | |
2565 | retval = -EIO; | |
2566 | break; | |
2567 | } | |
2568 | ||
2569 | if ((ti->cdti_trk0 < sony_toc.first_track_num) | |
2570 | || (ti->cdti_trk0 > sony_toc.last_track_num) | |
2571 | || (ti->cdti_trk1 < ti->cdti_trk0)) { | |
2572 | retval = -EINVAL; | |
2573 | break; | |
2574 | } | |
2575 | ||
2576 | track_idx = find_track(ti->cdti_trk0); | |
2577 | if (track_idx < 0) { | |
2578 | retval = -EINVAL; | |
2579 | break; | |
2580 | } | |
2581 | params[1] = | |
2582 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2583 | track_start_msf[0]); | |
2584 | params[2] = | |
2585 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2586 | track_start_msf[1]); | |
2587 | params[3] = | |
2588 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2589 | track_start_msf[2]); | |
2590 | ||
2591 | /* | |
2592 | * If we want to stop after the last track, use the lead-out | |
2593 | * MSF to do that. | |
2594 | */ | |
2595 | if (ti->cdti_trk1 >= sony_toc.last_track_num) { | |
2596 | track_idx = find_track(CDROM_LEADOUT); | |
2597 | } else { | |
2598 | track_idx = find_track(ti->cdti_trk1 + 1); | |
2599 | } | |
2600 | if (track_idx < 0) { | |
2601 | retval = -EINVAL; | |
2602 | break; | |
2603 | } | |
2604 | params[4] = | |
2605 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2606 | track_start_msf[0]); | |
2607 | params[5] = | |
2608 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2609 | track_start_msf[1]); | |
2610 | params[6] = | |
2611 | int_to_bcd(sony_toc.tracks[track_idx]. | |
2612 | track_start_msf[2]); | |
2613 | params[0] = 0x03; | |
2614 | ||
2615 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, | |
2616 | &res_size); | |
2617 | ||
2618 | do_sony_cd_cmd(SONY_AUDIO_PLAYBACK_CMD, params, 7, | |
2619 | res_reg, &res_size); | |
2620 | ||
2621 | if ((res_size < 2) | |
2622 | || ((res_reg[0] & 0xf0) == 0x20)) { | |
2623 | printk(KERN_ERR PFX | |
2624 | "Params: %x %x %x %x %x %x %x\n", | |
2625 | params[0], params[1], params[2], | |
2626 | params[3], params[4], params[5], | |
2627 | params[6]); | |
2628 | printk(KERN_ERR PFX | |
2629 | "Error %s (CDROMPLAYTRKIND)\n", | |
2630 | translate_error(res_reg[1])); | |
2631 | retval = -EIO; | |
2632 | break; | |
2633 | } | |
2634 | ||
2635 | /* Save the final position for pauses and resumes */ | |
2636 | final_pos_msf[0] = bcd_to_int(params[4]); | |
2637 | final_pos_msf[1] = bcd_to_int(params[5]); | |
2638 | final_pos_msf[2] = bcd_to_int(params[6]); | |
2639 | sony_audio_status = CDROM_AUDIO_PLAY; | |
2640 | retval = 0; | |
2641 | break; | |
2642 | } | |
2643 | ||
2644 | case CDROMVOLCTRL: /* Volume control. What volume does this change, anyway? */ | |
2645 | { | |
2646 | struct cdrom_volctrl *volctrl = | |
2647 | (struct cdrom_volctrl *) arg; | |
2648 | ||
2649 | params[0] = SONY_SD_AUDIO_VOLUME; | |
2650 | params[1] = volctrl->channel0; | |
2651 | params[2] = volctrl->channel1; | |
2652 | retval = do_sony_cd_cmd_chk("VOLCTRL", | |
2653 | SONY_SET_DRIVE_PARAM_CMD, | |
2654 | params, 3, res_reg, | |
2655 | &res_size); | |
2656 | break; | |
2657 | } | |
2658 | case CDROMSUBCHNL: /* Get subchannel info */ | |
2659 | retval = sony_get_subchnl_info((struct cdrom_subchnl *) arg); | |
2660 | break; | |
2661 | ||
2662 | default: | |
2663 | retval = -EINVAL; | |
2664 | break; | |
2665 | } | |
2666 | up(&sony_sem); | |
2667 | return retval; | |
2668 | } | |
2669 | ||
6a2900b6 | 2670 | static int scd_read_audio(struct cdrom_device_info *cdi, |
1da177e4 LT |
2671 | unsigned int cmd, unsigned long arg) |
2672 | { | |
2673 | void __user *argp = (void __user *)arg; | |
2674 | int retval; | |
2675 | ||
2676 | if (down_interruptible(&sony_sem)) | |
2677 | return -ERESTARTSYS; | |
2678 | switch (cmd) { | |
2679 | case CDROMREADAUDIO: /* Read 2352 byte audio tracks and 2340 byte | |
2680 | raw data tracks. */ | |
2681 | { | |
2682 | struct cdrom_read_audio ra; | |
2683 | ||
2684 | ||
2685 | sony_get_toc(); | |
2686 | if (!sony_toc_read) { | |
2687 | retval = -EIO; | |
2688 | break; | |
2689 | } | |
2690 | ||
2691 | if (copy_from_user(&ra, argp, sizeof(ra))) { | |
2692 | retval = -EFAULT; | |
2693 | break; | |
2694 | } | |
2695 | ||
2696 | if (ra.nframes == 0) { | |
2697 | retval = 0; | |
2698 | break; | |
2699 | } | |
2700 | ||
2701 | if (!access_ok(VERIFY_WRITE, ra.buf, | |
2702 | CD_FRAMESIZE_RAW * ra.nframes)) | |
2703 | return -EFAULT; | |
2704 | ||
2705 | if (ra.addr_format == CDROM_LBA) { | |
2706 | if ((ra.addr.lba >= | |
2707 | sony_toc.lead_out_start_lba) | |
2708 | || (ra.addr.lba + ra.nframes >= | |
2709 | sony_toc.lead_out_start_lba)) { | |
2710 | retval = -EINVAL; | |
2711 | break; | |
2712 | } | |
2713 | } else if (ra.addr_format == CDROM_MSF) { | |
2714 | if ((ra.addr.msf.minute >= 75) | |
2715 | || (ra.addr.msf.second >= 60) | |
2716 | || (ra.addr.msf.frame >= 75)) { | |
2717 | retval = -EINVAL; | |
2718 | break; | |
2719 | } | |
2720 | ||
2721 | ra.addr.lba = ((ra.addr.msf.minute * 4500) | |
2722 | + (ra.addr.msf.second * 75) | |
2723 | + ra.addr.msf.frame); | |
2724 | if ((ra.addr.lba >= | |
2725 | sony_toc.lead_out_start_lba) | |
2726 | || (ra.addr.lba + ra.nframes >= | |
2727 | sony_toc.lead_out_start_lba)) { | |
2728 | retval = -EINVAL; | |
2729 | break; | |
2730 | } | |
2731 | ||
2732 | /* I know, this can go negative on an unsigned. However, | |
2733 | the first thing done to the data is to add this value, | |
2734 | so this should compensate and allow direct msf access. */ | |
2735 | ra.addr.lba -= LOG_START_OFFSET; | |
2736 | } else { | |
2737 | retval = -EINVAL; | |
2738 | break; | |
2739 | } | |
2740 | ||
2741 | retval = read_audio(&ra); | |
2742 | break; | |
2743 | } | |
2744 | retval = 0; | |
2745 | break; | |
2746 | ||
2747 | default: | |
2748 | retval = -EINVAL; | |
2749 | } | |
2750 | up(&sony_sem); | |
2751 | return retval; | |
2752 | } | |
2753 | ||
2754 | static int scd_spinup(void) | |
2755 | { | |
2756 | unsigned char res_reg[12]; | |
2757 | unsigned int res_size; | |
2758 | int num_spin_ups; | |
2759 | ||
2760 | num_spin_ups = 0; | |
2761 | ||
2762 | respinup_on_open: | |
2763 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size); | |
2764 | ||
2765 | /* The drive sometimes returns error 0. I don't know why, but ignore | |
2766 | it. It seems to mean the drive has already done the operation. */ | |
2767 | if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) { | |
2768 | printk(KERN_ERR PFX "%s error (scd_open, spin up)\n", | |
2769 | translate_error(res_reg[1])); | |
2770 | return 1; | |
2771 | } | |
2772 | ||
2773 | do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, &res_size); | |
2774 | ||
2775 | /* The drive sometimes returns error 0. I don't know why, but ignore | |
2776 | it. It seems to mean the drive has already done the operation. */ | |
2777 | if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) { | |
2778 | /* If the drive is already playing, it's ok. */ | |
2779 | if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR) | |
2780 | || (res_reg[1] == 0)) { | |
2781 | return 0; | |
2782 | } | |
2783 | ||
2784 | /* If the drive says it is not spun up (even though we just did it!) | |
2785 | then retry the operation at least a few times. */ | |
2786 | if ((res_reg[1] == SONY_NOT_SPIN_ERR) | |
2787 | && (num_spin_ups < MAX_CDU31A_RETRIES)) { | |
2788 | num_spin_ups++; | |
2789 | goto respinup_on_open; | |
2790 | } | |
2791 | ||
2792 | printk(KERN_ERR PFX "Error %s (scd_open, read toc)\n", | |
2793 | translate_error(res_reg[1])); | |
2794 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, | |
2795 | &res_size); | |
2796 | return 1; | |
2797 | } | |
2798 | return 0; | |
2799 | } | |
2800 | ||
2801 | /* | |
2802 | * Open the drive for operations. Spin the drive up and read the table of | |
2803 | * contents if these have not already been done. | |
2804 | */ | |
2805 | static int scd_open(struct cdrom_device_info *cdi, int purpose) | |
2806 | { | |
2807 | unsigned char res_reg[12]; | |
2808 | unsigned int res_size; | |
2809 | unsigned char params[2]; | |
2810 | ||
2811 | if (purpose == 1) { | |
2812 | /* Open for IOCTLs only - no media check */ | |
2813 | sony_usage++; | |
2814 | return 0; | |
2815 | } | |
2816 | ||
2817 | if (sony_usage == 0) { | |
2818 | if (scd_spinup() != 0) | |
2819 | return -EIO; | |
2820 | sony_get_toc(); | |
2821 | if (!sony_toc_read) { | |
2822 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, | |
2823 | res_reg, &res_size); | |
2824 | return -EIO; | |
2825 | } | |
2826 | ||
2827 | /* For XA on the CDU31A only, we have to do special reads. | |
2828 | The CDU33A handles XA automagically. */ | |
2829 | /* if ( (sony_toc.disk_type == SONY_XA_DISK_TYPE) */ | |
2830 | if ((sony_toc.disk_type != 0x00) | |
2831 | && (!is_double_speed)) { | |
2832 | params[0] = SONY_SD_DECODE_PARAM; | |
2833 | params[1] = 0x07; | |
2834 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
2835 | params, 2, res_reg, &res_size); | |
2836 | if ((res_size < 2) | |
2837 | || ((res_reg[0] & 0xf0) == 0x20)) { | |
2838 | printk(KERN_WARNING PFX "Unable to set " | |
2839 | "XA params: 0x%2.2x\n", res_reg[1]); | |
2840 | } | |
2841 | sony_xa_mode = 1; | |
2842 | } | |
2843 | /* A non-XA disk. Set the parms back if necessary. */ | |
2844 | else if (sony_xa_mode) { | |
2845 | params[0] = SONY_SD_DECODE_PARAM; | |
2846 | params[1] = 0x0f; | |
2847 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, | |
2848 | params, 2, res_reg, &res_size); | |
2849 | if ((res_size < 2) | |
2850 | || ((res_reg[0] & 0xf0) == 0x20)) { | |
2851 | printk(KERN_WARNING PFX "Unable to reset " | |
2852 | "XA params: 0x%2.2x\n", res_reg[1]); | |
2853 | } | |
2854 | sony_xa_mode = 0; | |
2855 | } | |
2856 | ||
2857 | sony_spun_up = 1; | |
2858 | } | |
2859 | ||
2860 | sony_usage++; | |
2861 | ||
2862 | return 0; | |
2863 | } | |
2864 | ||
2865 | ||
2866 | /* | |
2867 | * Close the drive. Spin it down if no task is using it. The spin | |
2868 | * down will fail if playing audio, so audio play is OK. | |
2869 | */ | |
2870 | static void scd_release(struct cdrom_device_info *cdi) | |
2871 | { | |
2872 | if (sony_usage == 1) { | |
2873 | unsigned char res_reg[12]; | |
2874 | unsigned int res_size; | |
2875 | ||
2876 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, | |
2877 | &res_size); | |
2878 | ||
2879 | sony_spun_up = 0; | |
2880 | } | |
2881 | sony_usage--; | |
2882 | } | |
2883 | ||
2884 | static struct cdrom_device_ops scd_dops = { | |
2885 | .open = scd_open, | |
2886 | .release = scd_release, | |
2887 | .drive_status = scd_drive_status, | |
2888 | .media_changed = scd_media_changed, | |
2889 | .tray_move = scd_tray_move, | |
2890 | .lock_door = scd_lock_door, | |
2891 | .select_speed = scd_select_speed, | |
2892 | .get_last_session = scd_get_last_session, | |
2893 | .get_mcn = scd_get_mcn, | |
2894 | .reset = scd_reset, | |
2895 | .audio_ioctl = scd_audio_ioctl, | |
1da177e4 LT |
2896 | .capability = CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK | |
2897 | CDC_SELECT_SPEED | CDC_MULTI_SESSION | | |
2898 | CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | | |
6a2900b6 | 2899 | CDC_RESET | CDC_DRIVE_STATUS, |
1da177e4 LT |
2900 | .n_minors = 1, |
2901 | }; | |
2902 | ||
2903 | static struct cdrom_device_info scd_info = { | |
2904 | .ops = &scd_dops, | |
2905 | .speed = 2, | |
2906 | .capacity = 1, | |
2907 | .name = "cdu31a" | |
2908 | }; | |
2909 | ||
2910 | static int scd_block_open(struct inode *inode, struct file *file) | |
2911 | { | |
2912 | return cdrom_open(&scd_info, inode, file); | |
2913 | } | |
2914 | ||
2915 | static int scd_block_release(struct inode *inode, struct file *file) | |
2916 | { | |
2917 | return cdrom_release(&scd_info, file); | |
2918 | } | |
2919 | ||
2920 | static int scd_block_ioctl(struct inode *inode, struct file *file, | |
2921 | unsigned cmd, unsigned long arg) | |
2922 | { | |
2923 | int retval; | |
2924 | ||
2925 | /* The eject and close commands should be handled by Uniform CD-ROM | |
2926 | * driver - but I always got hard lockup instead of eject | |
2927 | * until I put this here. | |
2928 | */ | |
2929 | switch (cmd) { | |
2930 | case CDROMEJECT: | |
2931 | scd_lock_door(&scd_info, 0); | |
2932 | retval = scd_tray_move(&scd_info, 1); | |
2933 | break; | |
2934 | case CDROMCLOSETRAY: | |
2935 | retval = scd_tray_move(&scd_info, 0); | |
2936 | break; | |
6a2900b6 CH |
2937 | case CDROMREADAUDIO: |
2938 | retval = scd_read_audio(&scd_info, CDROMREADAUDIO, arg); | |
2939 | break; | |
1da177e4 LT |
2940 | default: |
2941 | retval = cdrom_ioctl(file, &scd_info, inode, cmd, arg); | |
2942 | } | |
2943 | return retval; | |
2944 | } | |
2945 | ||
2946 | static int scd_block_media_changed(struct gendisk *disk) | |
2947 | { | |
2948 | return cdrom_media_changed(&scd_info); | |
2949 | } | |
2950 | ||
75c96f85 | 2951 | static struct block_device_operations scd_bdops = |
1da177e4 LT |
2952 | { |
2953 | .owner = THIS_MODULE, | |
2954 | .open = scd_block_open, | |
2955 | .release = scd_block_release, | |
2956 | .ioctl = scd_block_ioctl, | |
2957 | .media_changed = scd_block_media_changed, | |
2958 | }; | |
2959 | ||
2960 | static struct gendisk *scd_gendisk; | |
2961 | ||
2962 | /* The different types of disc loading mechanisms supported */ | |
2963 | static char *load_mech[] __initdata = | |
2964 | { "caddy", "tray", "pop-up", "unknown" }; | |
2965 | ||
2966 | static int __init | |
2967 | get_drive_configuration(unsigned short base_io, | |
2968 | unsigned char res_reg[], unsigned int *res_size) | |
2969 | { | |
2970 | unsigned long retry_count; | |
2971 | ||
2972 | ||
2973 | if (!request_region(base_io, 4, "cdu31a")) | |
2974 | return 0; | |
2975 | ||
2976 | /* Set the base address */ | |
2977 | cdu31a_port = base_io; | |
2978 | ||
2979 | /* Set up all the register locations */ | |
2980 | sony_cd_cmd_reg = cdu31a_port + SONY_CMD_REG_OFFSET; | |
2981 | sony_cd_param_reg = cdu31a_port + SONY_PARAM_REG_OFFSET; | |
2982 | sony_cd_write_reg = cdu31a_port + SONY_WRITE_REG_OFFSET; | |
2983 | sony_cd_control_reg = cdu31a_port + SONY_CONTROL_REG_OFFSET; | |
2984 | sony_cd_status_reg = cdu31a_port + SONY_STATUS_REG_OFFSET; | |
2985 | sony_cd_result_reg = cdu31a_port + SONY_RESULT_REG_OFFSET; | |
2986 | sony_cd_read_reg = cdu31a_port + SONY_READ_REG_OFFSET; | |
2987 | sony_cd_fifost_reg = cdu31a_port + SONY_FIFOST_REG_OFFSET; | |
2988 | ||
2989 | /* | |
2990 | * Check to see if anything exists at the status register location. | |
2991 | * I don't know if this is a good way to check, but it seems to work | |
2992 | * ok for me. | |
2993 | */ | |
2994 | if (read_status_register() != 0xff) { | |
2995 | /* | |
2996 | * Reset the drive and wait for attention from it (to say it's reset). | |
2997 | * If you don't wait, the next operation will probably fail. | |
2998 | */ | |
2999 | reset_drive(); | |
3000 | retry_count = jiffies + SONY_RESET_TIMEOUT; | |
3001 | while (time_before(jiffies, retry_count) | |
3002 | && (!is_attention())) { | |
3003 | sony_sleep(); | |
3004 | } | |
3005 | ||
3006 | #if 0 | |
3007 | /* If attention is never seen probably not a CDU31a present */ | |
3008 | if (!is_attention()) { | |
3009 | res_reg[0] = 0x20; | |
3010 | goto out_err; | |
3011 | } | |
3012 | #endif | |
3013 | ||
3014 | /* | |
3015 | * Get the drive configuration. | |
3016 | */ | |
3017 | do_sony_cd_cmd(SONY_REQ_DRIVE_CONFIG_CMD, | |
3018 | NULL, | |
3019 | 0, (unsigned char *) res_reg, res_size); | |
3020 | if (*res_size <= 2 || (res_reg[0] & 0xf0) != 0) | |
3021 | goto out_err; | |
3022 | return 1; | |
3023 | } | |
3024 | ||
3025 | /* Return an error */ | |
3026 | res_reg[0] = 0x20; | |
3027 | out_err: | |
3028 | release_region(cdu31a_port, 4); | |
3029 | cdu31a_port = 0; | |
3030 | return 0; | |
3031 | } | |
3032 | ||
3033 | #ifndef MODULE | |
3034 | /* | |
3035 | * Set up base I/O and interrupts, called from main.c. | |
3036 | */ | |
3037 | ||
3038 | static int __init cdu31a_setup(char *strings) | |
3039 | { | |
3040 | int ints[4]; | |
3041 | ||
3042 | (void) get_options(strings, ARRAY_SIZE(ints), ints); | |
3043 | ||
3044 | if (ints[0] > 0) { | |
3045 | cdu31a_port = ints[1]; | |
3046 | } | |
3047 | if (ints[0] > 1) { | |
3048 | cdu31a_irq = ints[2]; | |
3049 | } | |
3050 | if ((strings != NULL) && (*strings != '\0')) { | |
3051 | if (strcmp(strings, "PAS") == 0) { | |
3052 | sony_pas_init = 1; | |
3053 | } else { | |
3054 | printk(KERN_NOTICE PFX "Unknown interface type: %s\n", | |
3055 | strings); | |
3056 | } | |
3057 | } | |
3058 | ||
3059 | return 1; | |
3060 | } | |
3061 | ||
3062 | __setup("cdu31a=", cdu31a_setup); | |
3063 | ||
3064 | #endif | |
3065 | ||
3066 | /* | |
3067 | * Initialize the driver. | |
3068 | */ | |
3069 | int __init cdu31a_init(void) | |
3070 | { | |
3071 | struct s_sony_drive_config drive_config; | |
3072 | struct gendisk *disk; | |
3073 | int deficiency = 0; | |
3074 | unsigned int res_size; | |
3075 | char msg[255]; | |
3076 | char buf[40]; | |
3077 | int i; | |
3078 | int tmp_irq; | |
3079 | ||
3080 | /* | |
3081 | * According to Alex Freed (freed@europa.orion.adobe.com), this is | |
3082 | * required for the Fusion CD-16 package. If the sound driver is | |
3083 | * loaded, it should work fine, but just in case... | |
3084 | * | |
3085 | * The following turn on the CD-ROM interface for a Fusion CD-16. | |
3086 | */ | |
3087 | if (sony_pas_init) { | |
3088 | outb(0xbc, 0x9a01); | |
3089 | outb(0xe2, 0x9a01); | |
3090 | } | |
3091 | ||
3092 | /* Setting the base I/O address to 0xffff will disable it. */ | |
3093 | if (cdu31a_port == 0xffff) | |
3094 | goto errout3; | |
3095 | ||
3096 | if (cdu31a_port != 0) { | |
3097 | /* Need IRQ 0 because we can't sleep here. */ | |
3098 | tmp_irq = cdu31a_irq; | |
3099 | cdu31a_irq = 0; | |
3100 | if (!get_drive_configuration(cdu31a_port, | |
3101 | drive_config.exec_status, | |
3102 | &res_size)) | |
3103 | goto errout3; | |
3104 | cdu31a_irq = tmp_irq; | |
3105 | } else { | |
3106 | cdu31a_irq = 0; | |
3107 | for (i = 0; cdu31a_addresses[i].base; i++) { | |
3108 | if (get_drive_configuration(cdu31a_addresses[i].base, | |
3109 | drive_config.exec_status, | |
3110 | &res_size)) { | |
3111 | cdu31a_irq = cdu31a_addresses[i].int_num; | |
3112 | break; | |
3113 | } | |
3114 | } | |
3115 | if (!cdu31a_port) | |
3116 | goto errout3; | |
3117 | } | |
3118 | ||
3119 | if (register_blkdev(MAJOR_NR, "cdu31a")) | |
3120 | goto errout2; | |
3121 | ||
3122 | disk = alloc_disk(1); | |
3123 | if (!disk) | |
3124 | goto errout1; | |
3125 | disk->major = MAJOR_NR; | |
3126 | disk->first_minor = 0; | |
3127 | sprintf(disk->disk_name, "cdu31a"); | |
3128 | disk->fops = &scd_bdops; | |
3129 | disk->flags = GENHD_FL_CD; | |
3130 | ||
3131 | if (SONY_HWC_DOUBLE_SPEED(drive_config)) | |
3132 | is_double_speed = 1; | |
3133 | ||
3134 | tmp_irq = cdu31a_irq; /* Need IRQ 0 because we can't sleep here. */ | |
3135 | cdu31a_irq = 0; | |
3136 | ||
3137 | sony_speed = is_double_speed; /* Set 2X drives to 2X by default */ | |
3138 | set_drive_params(sony_speed); | |
3139 | ||
3140 | cdu31a_irq = tmp_irq; | |
3141 | ||
3142 | if (cdu31a_irq > 0) { | |
3143 | if (request_irq | |
3144 | (cdu31a_irq, cdu31a_interrupt, SA_INTERRUPT, | |
3145 | "cdu31a", NULL)) { | |
3146 | printk(KERN_WARNING PFX "Unable to grab IRQ%d for " | |
3147 | "the CDU31A driver\n", cdu31a_irq); | |
3148 | cdu31a_irq = 0; | |
3149 | } | |
3150 | } | |
3151 | ||
3152 | sprintf(msg, "Sony I/F CDROM : %8.8s %16.16s %8.8s\n", | |
3153 | drive_config.vendor_id, | |
3154 | drive_config.product_id, | |
3155 | drive_config.product_rev_level); | |
3156 | sprintf(buf, " Capabilities: %s", | |
3157 | load_mech[SONY_HWC_GET_LOAD_MECH(drive_config)]); | |
3158 | strcat(msg, buf); | |
3159 | if (SONY_HWC_AUDIO_PLAYBACK(drive_config)) | |
3160 | strcat(msg, ", audio"); | |
3161 | else | |
3162 | deficiency |= CDC_PLAY_AUDIO; | |
3163 | if (SONY_HWC_EJECT(drive_config)) | |
3164 | strcat(msg, ", eject"); | |
3165 | else | |
3166 | deficiency |= CDC_OPEN_TRAY; | |
3167 | if (SONY_HWC_LED_SUPPORT(drive_config)) | |
3168 | strcat(msg, ", LED"); | |
3169 | if (SONY_HWC_ELECTRIC_VOLUME(drive_config)) | |
3170 | strcat(msg, ", elec. Vol"); | |
3171 | if (SONY_HWC_ELECTRIC_VOLUME_CTL(drive_config)) | |
3172 | strcat(msg, ", sep. Vol"); | |
3173 | if (is_double_speed) | |
3174 | strcat(msg, ", double speed"); | |
3175 | else | |
3176 | deficiency |= CDC_SELECT_SPEED; | |
3177 | if (cdu31a_irq > 0) { | |
3178 | sprintf(buf, ", irq %d", cdu31a_irq); | |
3179 | strcat(msg, buf); | |
3180 | } | |
3181 | strcat(msg, "\n"); | |
3182 | printk(KERN_INFO PFX "%s",msg); | |
3183 | ||
3184 | cdu31a_queue = blk_init_queue(do_cdu31a_request, &cdu31a_lock); | |
3185 | if (!cdu31a_queue) | |
3186 | goto errout0; | |
3187 | blk_queue_hardsect_size(cdu31a_queue, 2048); | |
3188 | ||
3189 | init_timer(&cdu31a_abort_timer); | |
3190 | cdu31a_abort_timer.function = handle_abort_timeout; | |
3191 | ||
3192 | scd_info.mask = deficiency; | |
3193 | scd_gendisk = disk; | |
3194 | if (register_cdrom(&scd_info)) | |
3195 | goto err; | |
3196 | disk->queue = cdu31a_queue; | |
3197 | add_disk(disk); | |
3198 | ||
3199 | disk_changed = 1; | |
3200 | return 0; | |
3201 | ||
3202 | err: | |
3203 | blk_cleanup_queue(cdu31a_queue); | |
3204 | errout0: | |
3205 | if (cdu31a_irq) | |
3206 | free_irq(cdu31a_irq, NULL); | |
3207 | printk(KERN_ERR PFX "Unable to register with Uniform cdrom driver\n"); | |
3208 | put_disk(disk); | |
3209 | errout1: | |
3210 | if (unregister_blkdev(MAJOR_NR, "cdu31a")) { | |
3211 | printk(KERN_WARNING PFX "Can't unregister block device\n"); | |
3212 | } | |
3213 | errout2: | |
3214 | release_region(cdu31a_port, 4); | |
3215 | errout3: | |
3216 | return -EIO; | |
3217 | } | |
3218 | ||
3219 | ||
75c96f85 | 3220 | static void __exit cdu31a_exit(void) |
1da177e4 LT |
3221 | { |
3222 | del_gendisk(scd_gendisk); | |
3223 | put_disk(scd_gendisk); | |
3224 | if (unregister_cdrom(&scd_info)) { | |
3225 | printk(KERN_WARNING PFX "Can't unregister from Uniform " | |
3226 | "cdrom driver\n"); | |
3227 | return; | |
3228 | } | |
3229 | if ((unregister_blkdev(MAJOR_NR, "cdu31a") == -EINVAL)) { | |
3230 | printk(KERN_WARNING PFX "Can't unregister\n"); | |
3231 | return; | |
3232 | } | |
3233 | ||
3234 | blk_cleanup_queue(cdu31a_queue); | |
3235 | ||
3236 | if (cdu31a_irq > 0) | |
3237 | free_irq(cdu31a_irq, NULL); | |
3238 | ||
3239 | release_region(cdu31a_port, 4); | |
3240 | printk(KERN_INFO PFX "module released.\n"); | |
3241 | } | |
3242 | ||
3243 | #ifdef MODULE | |
3244 | module_init(cdu31a_init); | |
3245 | #endif | |
3246 | module_exit(cdu31a_exit); | |
3247 | ||
3248 | MODULE_LICENSE("GPL"); | |
3249 | MODULE_ALIAS_BLOCKDEV_MAJOR(CDU31A_CDROM_MAJOR); |