Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
| 164 | #include <linux/devfs_fs_kernel.h> |
| 165 | #include <linux/string.h> |
| 166 | #include <linux/slab.h> |
| 167 | #include <linux/init.h> |
| 168 | #include <linux/interrupt.h> |
| 169 | #include <linux/cdrom.h> |
| 170 | |
| 171 | #include <asm/system.h> |
| 172 | #include <asm/io.h> |
| 173 | #include <asm/uaccess.h> |
| 174 | #include <asm/dma.h> |
| 175 | |
| 176 | #include "cdu31a.h" |
| 177 | |
| 178 | #define MAJOR_NR CDU31A_CDROM_MAJOR |
| 179 | #include <linux/blkdev.h> |
| 180 | |
| 181 | #define CDU31A_MAX_CONSECUTIVE_ATTENTIONS 10 |
| 182 | |
| 183 | #define PFX "CDU31A: " |
| 184 | |
| 185 | /* |
| 186 | ** Edit the following data to change interrupts, DMA channels, etc. |
| 187 | ** Default is polled and no DMA. DMA is not recommended for double-speed |
| 188 | ** drives. |
| 189 | */ |
| 190 | static struct { |
| 191 | unsigned short base; /* I/O Base Address */ |
| 192 | short int_num; /* Interrupt Number (-1 means scan for it, |
| 193 | 0 means don't use) */ |
| 194 | } cdu31a_addresses[] __initdata = { |
| 195 | {0} |
| 196 | }; |
| 197 | |
| 198 | static int handle_sony_cd_attention(void); |
| 199 | static int read_subcode(void); |
| 200 | static void sony_get_toc(void); |
| 201 | static int scd_spinup(void); |
| 202 | /*static int scd_open(struct inode *inode, struct file *filp);*/ |
| 203 | static int scd_open(struct cdrom_device_info *, int); |
| 204 | static void do_sony_cd_cmd(unsigned char cmd, |
| 205 | unsigned char *params, |
| 206 | unsigned int num_params, |
| 207 | unsigned char *result_buffer, |
| 208 | unsigned int *result_size); |
| 209 | static void size_to_buf(unsigned int size, unsigned char *buf); |
| 210 | |
| 211 | /* Parameters for the read-ahead. */ |
| 212 | static unsigned int sony_next_block; /* Next 512 byte block offset */ |
| 213 | static unsigned int sony_blocks_left = 0; /* Number of 512 byte blocks left |
| 214 | in the current read command. */ |
| 215 | |
| 216 | |
| 217 | /* The base I/O address of the Sony Interface. This is a variable (not a |
| 218 | #define) so it can be easily changed via some future ioctl() */ |
| 219 | static unsigned int cdu31a_port = 0; |
| 220 | module_param(cdu31a_port, uint, 0); |
| 221 | |
| 222 | /* |
| 223 | * The following are I/O addresses of the various registers for the drive. The |
| 224 | * comment for the base address also applies here. |
| 225 | */ |
| 226 | static volatile unsigned short sony_cd_cmd_reg; |
| 227 | static volatile unsigned short sony_cd_param_reg; |
| 228 | static volatile unsigned short sony_cd_write_reg; |
| 229 | static volatile unsigned short sony_cd_control_reg; |
| 230 | static volatile unsigned short sony_cd_status_reg; |
| 231 | static volatile unsigned short sony_cd_result_reg; |
| 232 | static volatile unsigned short sony_cd_read_reg; |
| 233 | static volatile unsigned short sony_cd_fifost_reg; |
| 234 | |
| 235 | static struct request_queue *cdu31a_queue; |
| 236 | static DEFINE_SPINLOCK(cdu31a_lock); /* queue lock */ |
| 237 | |
| 238 | static int sony_spun_up = 0; /* Has the drive been spun up? */ |
| 239 | |
| 240 | static int sony_speed = 0; /* Last wanted speed */ |
| 241 | |
| 242 | static int sony_xa_mode = 0; /* Is an XA disk in the drive |
| 243 | and the drive a CDU31A? */ |
| 244 | |
| 245 | static int sony_raw_data_mode = 1; /* 1 if data tracks, 0 if audio. |
| 246 | For raw data reads. */ |
| 247 | |
| 248 | static unsigned int sony_usage = 0; /* How many processes have the |
| 249 | drive open. */ |
| 250 | |
| 251 | static int sony_pas_init = 0; /* Initialize the Pro-Audio |
| 252 | Spectrum card? */ |
| 253 | |
| 254 | static struct s_sony_session_toc single_toc; /* Holds the |
| 255 | table of |
| 256 | contents. */ |
| 257 | |
| 258 | static struct s_all_sessions_toc sony_toc; /* entries gathered from all |
| 259 | sessions */ |
| 260 | |
| 261 | static int sony_toc_read = 0; /* Has the TOC been read for |
| 262 | the drive? */ |
| 263 | |
| 264 | static struct s_sony_subcode last_sony_subcode; /* Points to the last |
| 265 | subcode address read */ |
| 266 | |
| 267 | static DECLARE_MUTEX(sony_sem); /* Semaphore for drive hardware access */ |
| 268 | |
| 269 | static int is_double_speed = 0; /* does the drive support double speed ? */ |
| 270 | |
| 271 | static int is_auto_eject = 1; /* Door has been locked? 1=No/0=Yes */ |
| 272 | |
| 273 | /* |
| 274 | * The audio status uses the values from read subchannel data as specified |
| 275 | * in include/linux/cdrom.h. |
| 276 | */ |
| 277 | static volatile int sony_audio_status = CDROM_AUDIO_NO_STATUS; |
| 278 | |
| 279 | /* |
| 280 | * The following are a hack for pausing and resuming audio play. The drive |
| 281 | * does not work as I would expect it, if you stop it then start it again, |
| 282 | * the drive seeks back to the beginning and starts over. This holds the |
| 283 | * position during a pause so a resume can restart it. It uses the |
| 284 | * audio status variable above to tell if it is paused. |
| 285 | */ |
| 286 | static unsigned volatile char cur_pos_msf[3] = { 0, 0, 0 }; |
| 287 | static unsigned volatile char final_pos_msf[3] = { 0, 0, 0 }; |
| 288 | |
| 289 | /* What IRQ is the drive using? 0 if none. */ |
| 290 | static int cdu31a_irq = 0; |
| 291 | module_param(cdu31a_irq, int, 0); |
| 292 | |
| 293 | /* The interrupt handler will wake this queue up when it gets an |
| 294 | interrupts. */ |
Adrian Bunk | 75c96f8 | 2005-05-05 16:16:09 -0700 | [diff] [blame] | 295 | static DECLARE_WAIT_QUEUE_HEAD(cdu31a_irq_wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | static int irq_flag = 0; |
| 297 | |
| 298 | static int curr_control_reg = 0; /* Current value of the control register */ |
| 299 | |
| 300 | /* A disk changed variable. When a disk change is detected, it will |
| 301 | all be set to TRUE. As the upper layers ask for disk_changed status |
| 302 | it will be cleared. */ |
| 303 | static char disk_changed; |
| 304 | |
| 305 | /* This was readahead_buffer once... Now it's used only for audio reads */ |
| 306 | static char audio_buffer[CD_FRAMESIZE_RAW]; |
| 307 | |
| 308 | /* Used to time a short period to abort an operation after the |
| 309 | drive has been idle for a while. This keeps the light on |
| 310 | the drive from flashing for very long. */ |
| 311 | static struct timer_list cdu31a_abort_timer; |
| 312 | |
| 313 | /* Marks if the timeout has started an abort read. This is used |
| 314 | on entry to the drive to tell the code to read out the status |
| 315 | from the abort read. */ |
| 316 | static int abort_read_started = 0; |
| 317 | |
| 318 | /* |
| 319 | * Uniform cdrom interface function |
| 320 | * report back, if disc has changed from time of last request. |
| 321 | */ |
| 322 | static int scd_media_changed(struct cdrom_device_info *cdi, int disc_nr) |
| 323 | { |
| 324 | int retval; |
| 325 | |
| 326 | retval = disk_changed; |
| 327 | disk_changed = 0; |
| 328 | |
| 329 | return retval; |
| 330 | } |
| 331 | |
| 332 | /* |
| 333 | * Uniform cdrom interface function |
| 334 | * report back, if drive is ready |
| 335 | */ |
| 336 | static int scd_drive_status(struct cdrom_device_info *cdi, int slot_nr) |
| 337 | { |
| 338 | if (CDSL_CURRENT != slot_nr) |
| 339 | /* we have no changer support */ |
| 340 | return -EINVAL; |
| 341 | if (sony_spun_up) |
| 342 | return CDS_DISC_OK; |
| 343 | if (down_interruptible(&sony_sem)) |
| 344 | return -ERESTARTSYS; |
| 345 | if (scd_spinup() == 0) |
| 346 | sony_spun_up = 1; |
| 347 | up(&sony_sem); |
| 348 | return sony_spun_up ? CDS_DISC_OK : CDS_DRIVE_NOT_READY; |
| 349 | } |
| 350 | |
| 351 | static inline void enable_interrupts(void) |
| 352 | { |
| 353 | curr_control_reg |= (SONY_ATTN_INT_EN_BIT |
| 354 | | SONY_RES_RDY_INT_EN_BIT |
| 355 | | SONY_DATA_RDY_INT_EN_BIT); |
| 356 | outb(curr_control_reg, sony_cd_control_reg); |
| 357 | } |
| 358 | |
| 359 | static inline void disable_interrupts(void) |
| 360 | { |
| 361 | curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT |
| 362 | | SONY_RES_RDY_INT_EN_BIT |
| 363 | | SONY_DATA_RDY_INT_EN_BIT); |
| 364 | outb(curr_control_reg, sony_cd_control_reg); |
| 365 | } |
| 366 | |
| 367 | /* |
| 368 | * Wait a little while (used for polling the drive). If in initialization, |
| 369 | * setting a timeout doesn't work, so just loop for a while. |
| 370 | */ |
| 371 | static inline void sony_sleep(void) |
| 372 | { |
| 373 | if (cdu31a_irq <= 0) { |
| 374 | yield(); |
| 375 | } else { /* Interrupt driven */ |
| 376 | DEFINE_WAIT(w); |
| 377 | int first = 1; |
| 378 | |
| 379 | while (1) { |
| 380 | prepare_to_wait(&cdu31a_irq_wait, &w, |
| 381 | TASK_INTERRUPTIBLE); |
| 382 | if (first) { |
| 383 | enable_interrupts(); |
| 384 | first = 0; |
| 385 | } |
| 386 | |
| 387 | if (irq_flag != 0) |
| 388 | break; |
| 389 | if (!signal_pending(current)) { |
| 390 | schedule(); |
| 391 | continue; |
| 392 | } else |
| 393 | disable_interrupts(); |
| 394 | break; |
| 395 | } |
| 396 | finish_wait(&cdu31a_irq_wait, &w); |
| 397 | irq_flag = 0; |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | |
| 402 | /* |
| 403 | * The following are convenience routine to read various status and set |
| 404 | * various conditions in the drive. |
| 405 | */ |
| 406 | static inline int is_attention(void) |
| 407 | { |
| 408 | return (inb(sony_cd_status_reg) & SONY_ATTN_BIT) != 0; |
| 409 | } |
| 410 | |
| 411 | static inline int is_busy(void) |
| 412 | { |
| 413 | return (inb(sony_cd_status_reg) & SONY_BUSY_BIT) != 0; |
| 414 | } |
| 415 | |
| 416 | static inline int is_data_ready(void) |
| 417 | { |
| 418 | return (inb(sony_cd_status_reg) & SONY_DATA_RDY_BIT) != 0; |
| 419 | } |
| 420 | |
| 421 | static inline int is_data_requested(void) |
| 422 | { |
| 423 | return (inb(sony_cd_status_reg) & SONY_DATA_REQUEST_BIT) != 0; |
| 424 | } |
| 425 | |
| 426 | static inline int is_result_ready(void) |
| 427 | { |
| 428 | return (inb(sony_cd_status_reg) & SONY_RES_RDY_BIT) != 0; |
| 429 | } |
| 430 | |
| 431 | static inline int is_param_write_rdy(void) |
| 432 | { |
| 433 | return (inb(sony_cd_fifost_reg) & SONY_PARAM_WRITE_RDY_BIT) != 0; |
| 434 | } |
| 435 | |
| 436 | static inline int is_result_reg_not_empty(void) |
| 437 | { |
| 438 | return (inb(sony_cd_fifost_reg) & SONY_RES_REG_NOT_EMP_BIT) != 0; |
| 439 | } |
| 440 | |
| 441 | static inline void reset_drive(void) |
| 442 | { |
| 443 | curr_control_reg = 0; |
| 444 | sony_toc_read = 0; |
| 445 | outb(SONY_DRIVE_RESET_BIT, sony_cd_control_reg); |
| 446 | } |
| 447 | |
| 448 | /* |
| 449 | * Uniform cdrom interface function |
| 450 | * reset drive and return when it is ready |
| 451 | */ |
| 452 | static int scd_reset(struct cdrom_device_info *cdi) |
| 453 | { |
| 454 | unsigned long retry_count; |
| 455 | |
| 456 | if (down_interruptible(&sony_sem)) |
| 457 | return -ERESTARTSYS; |
| 458 | reset_drive(); |
| 459 | |
| 460 | retry_count = jiffies + SONY_RESET_TIMEOUT; |
| 461 | while (time_before(jiffies, retry_count) && (!is_attention())) { |
| 462 | sony_sleep(); |
| 463 | } |
| 464 | |
| 465 | up(&sony_sem); |
| 466 | return 0; |
| 467 | } |
| 468 | |
| 469 | static inline void clear_attention(void) |
| 470 | { |
| 471 | outb(curr_control_reg | SONY_ATTN_CLR_BIT, sony_cd_control_reg); |
| 472 | } |
| 473 | |
| 474 | static inline void clear_result_ready(void) |
| 475 | { |
| 476 | outb(curr_control_reg | SONY_RES_RDY_CLR_BIT, sony_cd_control_reg); |
| 477 | } |
| 478 | |
| 479 | static inline void clear_data_ready(void) |
| 480 | { |
| 481 | outb(curr_control_reg | SONY_DATA_RDY_CLR_BIT, |
| 482 | sony_cd_control_reg); |
| 483 | } |
| 484 | |
| 485 | static inline void clear_param_reg(void) |
| 486 | { |
| 487 | outb(curr_control_reg | SONY_PARAM_CLR_BIT, sony_cd_control_reg); |
| 488 | } |
| 489 | |
| 490 | static inline unsigned char read_status_register(void) |
| 491 | { |
| 492 | return inb(sony_cd_status_reg); |
| 493 | } |
| 494 | |
| 495 | static inline unsigned char read_result_register(void) |
| 496 | { |
| 497 | return inb(sony_cd_result_reg); |
| 498 | } |
| 499 | |
| 500 | static inline unsigned char read_data_register(void) |
| 501 | { |
| 502 | return inb(sony_cd_read_reg); |
| 503 | } |
| 504 | |
| 505 | static inline void write_param(unsigned char param) |
| 506 | { |
| 507 | outb(param, sony_cd_param_reg); |
| 508 | } |
| 509 | |
| 510 | static inline void write_cmd(unsigned char cmd) |
| 511 | { |
| 512 | outb(curr_control_reg | SONY_RES_RDY_INT_EN_BIT, |
| 513 | sony_cd_control_reg); |
| 514 | outb(cmd, sony_cd_cmd_reg); |
| 515 | } |
| 516 | |
| 517 | static irqreturn_t cdu31a_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| 518 | { |
| 519 | unsigned char val; |
| 520 | |
| 521 | if (abort_read_started) { |
| 522 | /* We might be waiting for an abort to finish. Don't |
| 523 | disable interrupts yet, though, because we handle |
| 524 | this one here. */ |
| 525 | /* Clear out the result registers. */ |
| 526 | while (is_result_reg_not_empty()) { |
| 527 | val = read_result_register(); |
| 528 | } |
| 529 | clear_data_ready(); |
| 530 | clear_result_ready(); |
| 531 | |
| 532 | /* Clear out the data */ |
| 533 | while (is_data_requested()) { |
| 534 | val = read_data_register(); |
| 535 | } |
| 536 | abort_read_started = 0; |
| 537 | |
| 538 | /* If something was waiting, wake it up now. */ |
| 539 | if (waitqueue_active(&cdu31a_irq_wait)) { |
| 540 | disable_interrupts(); |
| 541 | irq_flag = 1; |
| 542 | wake_up_interruptible(&cdu31a_irq_wait); |
| 543 | } |
| 544 | } else if (waitqueue_active(&cdu31a_irq_wait)) { |
| 545 | disable_interrupts(); |
| 546 | irq_flag = 1; |
| 547 | wake_up_interruptible(&cdu31a_irq_wait); |
| 548 | } else { |
| 549 | disable_interrupts(); |
| 550 | printk(KERN_NOTICE PFX |
| 551 | "Got an interrupt but nothing was waiting\n"); |
| 552 | } |
| 553 | return IRQ_HANDLED; |
| 554 | } |
| 555 | |
| 556 | /* |
| 557 | * give more verbose error messages |
| 558 | */ |
| 559 | static unsigned char *translate_error(unsigned char err_code) |
| 560 | { |
| 561 | static unsigned char errbuf[80]; |
| 562 | |
| 563 | switch (err_code) { |
| 564 | case 0x10: return "illegal command "; |
| 565 | case 0x11: return "illegal parameter "; |
| 566 | |
| 567 | case 0x20: return "not loaded "; |
| 568 | case 0x21: return "no disc "; |
| 569 | case 0x22: return "not spinning "; |
| 570 | case 0x23: return "spinning "; |
| 571 | case 0x25: return "spindle servo "; |
| 572 | case 0x26: return "focus servo "; |
| 573 | case 0x29: return "eject mechanism "; |
| 574 | case 0x2a: return "audio playing "; |
| 575 | case 0x2c: return "emergency eject "; |
| 576 | |
| 577 | case 0x30: return "focus "; |
| 578 | case 0x31: return "frame sync "; |
| 579 | case 0x32: return "subcode address "; |
| 580 | case 0x33: return "block sync "; |
| 581 | case 0x34: return "header address "; |
| 582 | |
| 583 | case 0x40: return "illegal track read "; |
| 584 | case 0x41: return "mode 0 read "; |
| 585 | case 0x42: return "illegal mode read "; |
| 586 | case 0x43: return "illegal block size read "; |
| 587 | case 0x44: return "mode read "; |
| 588 | case 0x45: return "form read "; |
| 589 | case 0x46: return "leadout read "; |
| 590 | case 0x47: return "buffer overrun "; |
| 591 | |
| 592 | case 0x53: return "unrecoverable CIRC "; |
| 593 | case 0x57: return "unrecoverable LECC "; |
| 594 | |
| 595 | case 0x60: return "no TOC "; |
| 596 | case 0x61: return "invalid subcode data "; |
| 597 | case 0x63: return "focus on TOC read "; |
| 598 | case 0x64: return "frame sync on TOC read "; |
| 599 | case 0x65: return "TOC data "; |
| 600 | |
| 601 | case 0x70: return "hardware failure "; |
| 602 | case 0x91: return "leadin "; |
| 603 | case 0x92: return "leadout "; |
| 604 | case 0x93: return "data track "; |
| 605 | } |
| 606 | sprintf(errbuf, "unknown 0x%02x ", err_code); |
| 607 | return errbuf; |
| 608 | } |
| 609 | |
| 610 | /* |
| 611 | * Set the drive parameters so the drive will auto-spin-up when a |
| 612 | * disk is inserted. |
| 613 | */ |
| 614 | static void set_drive_params(int want_doublespeed) |
| 615 | { |
| 616 | unsigned char res_reg[12]; |
| 617 | unsigned int res_size; |
| 618 | unsigned char params[3]; |
| 619 | |
| 620 | |
| 621 | params[0] = SONY_SD_AUTO_SPIN_DOWN_TIME; |
| 622 | params[1] = 0x00; /* Never spin down the drive. */ |
| 623 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 624 | params, 2, res_reg, &res_size); |
| 625 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { |
| 626 | printk(KERN_NOTICE PFX |
| 627 | "Unable to set spin-down time: 0x%2.2x\n", res_reg[1]); |
| 628 | } |
| 629 | |
| 630 | params[0] = SONY_SD_MECH_CONTROL; |
| 631 | params[1] = SONY_AUTO_SPIN_UP_BIT; /* Set auto spin up */ |
| 632 | |
| 633 | if (is_auto_eject) |
| 634 | params[1] |= SONY_AUTO_EJECT_BIT; |
| 635 | |
| 636 | if (is_double_speed && want_doublespeed) { |
| 637 | params[1] |= SONY_DOUBLE_SPEED_BIT; /* Set the drive to double speed if |
| 638 | possible */ |
| 639 | } |
| 640 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 641 | params, 2, res_reg, &res_size); |
| 642 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { |
| 643 | printk(KERN_NOTICE PFX "Unable to set mechanical " |
| 644 | "parameters: 0x%2.2x\n", res_reg[1]); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | /* |
| 649 | * Uniform cdrom interface function |
| 650 | * select reading speed for data access |
| 651 | */ |
| 652 | static int scd_select_speed(struct cdrom_device_info *cdi, int speed) |
| 653 | { |
| 654 | if (speed == 0) |
| 655 | sony_speed = 1; |
| 656 | else |
| 657 | sony_speed = speed - 1; |
| 658 | |
| 659 | if (down_interruptible(&sony_sem)) |
| 660 | return -ERESTARTSYS; |
| 661 | set_drive_params(sony_speed); |
| 662 | up(&sony_sem); |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | /* |
| 667 | * Uniform cdrom interface function |
| 668 | * lock or unlock eject button |
| 669 | */ |
| 670 | static int scd_lock_door(struct cdrom_device_info *cdi, int lock) |
| 671 | { |
| 672 | if (lock == 0) { |
| 673 | is_auto_eject = 1; |
| 674 | } else { |
| 675 | is_auto_eject = 0; |
| 676 | } |
| 677 | if (down_interruptible(&sony_sem)) |
| 678 | return -ERESTARTSYS; |
| 679 | set_drive_params(sony_speed); |
| 680 | up(&sony_sem); |
| 681 | return 0; |
| 682 | } |
| 683 | |
| 684 | /* |
| 685 | * This code will reset the drive and attempt to restore sane parameters. |
| 686 | */ |
| 687 | static void restart_on_error(void) |
| 688 | { |
| 689 | unsigned char res_reg[12]; |
| 690 | unsigned int res_size; |
| 691 | unsigned long retry_count; |
| 692 | |
| 693 | |
| 694 | printk(KERN_NOTICE PFX "Resetting drive on error\n"); |
| 695 | reset_drive(); |
| 696 | retry_count = jiffies + SONY_RESET_TIMEOUT; |
| 697 | while (time_before(jiffies, retry_count) && (!is_attention())) { |
| 698 | sony_sleep(); |
| 699 | } |
| 700 | set_drive_params(sony_speed); |
| 701 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size); |
| 702 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { |
| 703 | printk(KERN_NOTICE PFX "Unable to spin up drive: 0x%2.2x\n", |
| 704 | res_reg[1]); |
| 705 | } |
| 706 | |
| 707 | msleep(2000); |
| 708 | |
| 709 | sony_get_toc(); |
| 710 | } |
| 711 | |
| 712 | /* |
| 713 | * This routine writes data to the parameter register. Since this should |
| 714 | * happen fairly fast, it is polled with no OS waits between. |
| 715 | */ |
| 716 | static int write_params(unsigned char *params, int num_params) |
| 717 | { |
| 718 | unsigned int retry_count; |
| 719 | |
| 720 | |
| 721 | retry_count = SONY_READY_RETRIES; |
| 722 | while ((retry_count > 0) && (!is_param_write_rdy())) { |
| 723 | retry_count--; |
| 724 | } |
| 725 | if (!is_param_write_rdy()) { |
| 726 | return -EIO; |
| 727 | } |
| 728 | |
| 729 | while (num_params > 0) { |
| 730 | write_param(*params); |
| 731 | params++; |
| 732 | num_params--; |
| 733 | } |
| 734 | |
| 735 | return 0; |
| 736 | } |
| 737 | |
| 738 | |
| 739 | /* |
| 740 | * The following reads data from the command result register. It is a |
| 741 | * fairly complex routine, all status info flows back through this |
| 742 | * interface. The algorithm is stolen directly from the flowcharts in |
| 743 | * the drive manual. |
| 744 | */ |
| 745 | static void |
| 746 | get_result(unsigned char *result_buffer, unsigned int *result_size) |
| 747 | { |
| 748 | unsigned char a, b; |
| 749 | int i; |
| 750 | unsigned long retry_count; |
| 751 | |
| 752 | |
| 753 | while (handle_sony_cd_attention()); |
| 754 | /* Wait for the result data to be ready */ |
| 755 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 756 | while (time_before(jiffies, retry_count) |
| 757 | && (is_busy() || (!(is_result_ready())))) { |
| 758 | sony_sleep(); |
| 759 | |
| 760 | while (handle_sony_cd_attention()); |
| 761 | } |
| 762 | if (is_busy() || (!(is_result_ready()))) { |
| 763 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 764 | result_buffer[0] = 0x20; |
| 765 | result_buffer[1] = SONY_TIMEOUT_OP_ERR; |
| 766 | *result_size = 2; |
| 767 | return; |
| 768 | } |
| 769 | |
| 770 | /* |
| 771 | * Get the first two bytes. This determines what else needs |
| 772 | * to be done. |
| 773 | */ |
| 774 | clear_result_ready(); |
| 775 | a = read_result_register(); |
| 776 | *result_buffer = a; |
| 777 | result_buffer++; |
| 778 | |
| 779 | /* Check for block error status result. */ |
| 780 | if ((a & 0xf0) == 0x50) { |
| 781 | *result_size = 1; |
| 782 | return; |
| 783 | } |
| 784 | |
| 785 | b = read_result_register(); |
| 786 | *result_buffer = b; |
| 787 | result_buffer++; |
| 788 | *result_size = 2; |
| 789 | |
| 790 | /* |
| 791 | * 0x20 means an error occurred. Byte 2 will have the error code. |
| 792 | * Otherwise, the command succeeded, byte 2 will have the count of |
| 793 | * how many more status bytes are coming. |
| 794 | * |
| 795 | * The result register can be read 10 bytes at a time, a wait for |
| 796 | * result ready to be asserted must be done between every 10 bytes. |
| 797 | */ |
| 798 | if ((a & 0xf0) != 0x20) { |
| 799 | if (b > 8) { |
| 800 | for (i = 0; i < 8; i++) { |
| 801 | *result_buffer = read_result_register(); |
| 802 | result_buffer++; |
| 803 | (*result_size)++; |
| 804 | } |
| 805 | b = b - 8; |
| 806 | |
| 807 | while (b > 10) { |
| 808 | retry_count = SONY_READY_RETRIES; |
| 809 | while ((retry_count > 0) |
| 810 | && (!is_result_ready())) { |
| 811 | retry_count--; |
| 812 | } |
| 813 | if (!is_result_ready()) { |
| 814 | pr_debug(PFX "timeout out %d\n", |
| 815 | __LINE__); |
| 816 | result_buffer[0] = 0x20; |
| 817 | result_buffer[1] = |
| 818 | SONY_TIMEOUT_OP_ERR; |
| 819 | *result_size = 2; |
| 820 | return; |
| 821 | } |
| 822 | |
| 823 | clear_result_ready(); |
| 824 | |
| 825 | for (i = 0; i < 10; i++) { |
| 826 | *result_buffer = |
| 827 | read_result_register(); |
| 828 | result_buffer++; |
| 829 | (*result_size)++; |
| 830 | } |
| 831 | b = b - 10; |
| 832 | } |
| 833 | |
| 834 | if (b > 0) { |
| 835 | retry_count = SONY_READY_RETRIES; |
| 836 | while ((retry_count > 0) |
| 837 | && (!is_result_ready())) { |
| 838 | retry_count--; |
| 839 | } |
| 840 | if (!is_result_ready()) { |
| 841 | pr_debug(PFX "timeout out %d\n", |
| 842 | __LINE__); |
| 843 | result_buffer[0] = 0x20; |
| 844 | result_buffer[1] = |
| 845 | SONY_TIMEOUT_OP_ERR; |
| 846 | *result_size = 2; |
| 847 | return; |
| 848 | } |
| 849 | } |
| 850 | } |
| 851 | |
| 852 | while (b > 0) { |
| 853 | *result_buffer = read_result_register(); |
| 854 | result_buffer++; |
| 855 | (*result_size)++; |
| 856 | b--; |
| 857 | } |
| 858 | } |
| 859 | } |
| 860 | |
| 861 | /* |
| 862 | * Do a command that does not involve data transfer. This routine must |
| 863 | * be re-entrant from the same task to support being called from the |
| 864 | * data operation code when an error occurs. |
| 865 | */ |
| 866 | static void |
| 867 | do_sony_cd_cmd(unsigned char cmd, |
| 868 | unsigned char *params, |
| 869 | unsigned int num_params, |
| 870 | unsigned char *result_buffer, unsigned int *result_size) |
| 871 | { |
| 872 | unsigned long retry_count; |
| 873 | int num_retries = 0; |
| 874 | |
| 875 | retry_cd_operation: |
| 876 | |
| 877 | while (handle_sony_cd_attention()); |
| 878 | |
| 879 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 880 | while (time_before(jiffies, retry_count) && (is_busy())) { |
| 881 | sony_sleep(); |
| 882 | |
| 883 | while (handle_sony_cd_attention()); |
| 884 | } |
| 885 | if (is_busy()) { |
| 886 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 887 | result_buffer[0] = 0x20; |
| 888 | result_buffer[1] = SONY_TIMEOUT_OP_ERR; |
| 889 | *result_size = 2; |
| 890 | } else { |
| 891 | clear_result_ready(); |
| 892 | clear_param_reg(); |
| 893 | |
| 894 | write_params(params, num_params); |
| 895 | write_cmd(cmd); |
| 896 | |
| 897 | get_result(result_buffer, result_size); |
| 898 | } |
| 899 | |
| 900 | if (((result_buffer[0] & 0xf0) == 0x20) |
| 901 | && (num_retries < MAX_CDU31A_RETRIES)) { |
| 902 | num_retries++; |
| 903 | msleep(100); |
| 904 | goto retry_cd_operation; |
| 905 | } |
| 906 | } |
| 907 | |
| 908 | |
| 909 | /* |
| 910 | * Handle an attention from the drive. This will return 1 if it found one |
| 911 | * or 0 if not (if one is found, the caller might want to call again). |
| 912 | * |
| 913 | * This routine counts the number of consecutive times it is called |
| 914 | * (since this is always called from a while loop until it returns |
| 915 | * a 0), and returns a 0 if it happens too many times. This will help |
| 916 | * prevent a lockup. |
| 917 | */ |
| 918 | static int handle_sony_cd_attention(void) |
| 919 | { |
| 920 | unsigned char atten_code; |
| 921 | static int num_consecutive_attentions = 0; |
| 922 | volatile int val; |
| 923 | |
| 924 | |
| 925 | #if 0 |
| 926 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 927 | #endif |
| 928 | if (is_attention()) { |
| 929 | if (num_consecutive_attentions > |
| 930 | CDU31A_MAX_CONSECUTIVE_ATTENTIONS) { |
| 931 | printk(KERN_NOTICE PFX "Too many consecutive " |
| 932 | "attentions: %d\n", num_consecutive_attentions); |
| 933 | num_consecutive_attentions = 0; |
| 934 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, |
| 935 | __LINE__); |
| 936 | return 0; |
| 937 | } |
| 938 | |
| 939 | clear_attention(); |
| 940 | atten_code = read_result_register(); |
| 941 | |
| 942 | switch (atten_code) { |
| 943 | /* Someone changed the CD. Mark it as changed */ |
| 944 | case SONY_MECH_LOADED_ATTN: |
| 945 | disk_changed = 1; |
| 946 | sony_toc_read = 0; |
| 947 | sony_audio_status = CDROM_AUDIO_NO_STATUS; |
| 948 | sony_blocks_left = 0; |
| 949 | break; |
| 950 | |
| 951 | case SONY_SPIN_DOWN_COMPLETE_ATTN: |
| 952 | /* Mark the disk as spun down. */ |
| 953 | sony_spun_up = 0; |
| 954 | break; |
| 955 | |
| 956 | case SONY_AUDIO_PLAY_DONE_ATTN: |
| 957 | sony_audio_status = CDROM_AUDIO_COMPLETED; |
| 958 | read_subcode(); |
| 959 | break; |
| 960 | |
| 961 | case SONY_EJECT_PUSHED_ATTN: |
| 962 | if (is_auto_eject) { |
| 963 | sony_audio_status = CDROM_AUDIO_INVALID; |
| 964 | } |
| 965 | break; |
| 966 | |
| 967 | case SONY_LEAD_IN_ERR_ATTN: |
| 968 | case SONY_LEAD_OUT_ERR_ATTN: |
| 969 | case SONY_DATA_TRACK_ERR_ATTN: |
| 970 | case SONY_AUDIO_PLAYBACK_ERR_ATTN: |
| 971 | sony_audio_status = CDROM_AUDIO_ERROR; |
| 972 | break; |
| 973 | } |
| 974 | |
| 975 | num_consecutive_attentions++; |
| 976 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 977 | return 1; |
| 978 | } else if (abort_read_started) { |
| 979 | while (is_result_reg_not_empty()) { |
| 980 | val = read_result_register(); |
| 981 | } |
| 982 | clear_data_ready(); |
| 983 | clear_result_ready(); |
| 984 | /* Clear out the data */ |
| 985 | while (is_data_requested()) { |
| 986 | val = read_data_register(); |
| 987 | } |
| 988 | abort_read_started = 0; |
| 989 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 990 | return 1; |
| 991 | } |
| 992 | |
| 993 | num_consecutive_attentions = 0; |
| 994 | #if 0 |
| 995 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 996 | #endif |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | /* Convert from an integer 0-99 to BCD */ |
| 1002 | static inline unsigned int int_to_bcd(unsigned int val) |
| 1003 | { |
| 1004 | int retval; |
| 1005 | |
| 1006 | |
| 1007 | retval = (val / 10) << 4; |
| 1008 | retval = retval | val % 10; |
| 1009 | return retval; |
| 1010 | } |
| 1011 | |
| 1012 | |
| 1013 | /* Convert from BCD to an integer from 0-99 */ |
| 1014 | static unsigned int bcd_to_int(unsigned int bcd) |
| 1015 | { |
| 1016 | return (((bcd >> 4) & 0x0f) * 10) + (bcd & 0x0f); |
| 1017 | } |
| 1018 | |
| 1019 | |
| 1020 | /* |
| 1021 | * Convert a logical sector value (like the OS would want to use for |
| 1022 | * a block device) to an MSF format. |
| 1023 | */ |
| 1024 | static void log_to_msf(unsigned int log, unsigned char *msf) |
| 1025 | { |
| 1026 | log = log + LOG_START_OFFSET; |
| 1027 | msf[0] = int_to_bcd(log / 4500); |
| 1028 | log = log % 4500; |
| 1029 | msf[1] = int_to_bcd(log / 75); |
| 1030 | msf[2] = int_to_bcd(log % 75); |
| 1031 | } |
| 1032 | |
| 1033 | |
| 1034 | /* |
| 1035 | * Convert an MSF format to a logical sector. |
| 1036 | */ |
| 1037 | static unsigned int msf_to_log(unsigned char *msf) |
| 1038 | { |
| 1039 | unsigned int log; |
| 1040 | |
| 1041 | |
| 1042 | log = msf[2]; |
| 1043 | log += msf[1] * 75; |
| 1044 | log += msf[0] * 4500; |
| 1045 | log = log - LOG_START_OFFSET; |
| 1046 | |
| 1047 | return log; |
| 1048 | } |
| 1049 | |
| 1050 | |
| 1051 | /* |
| 1052 | * Take in integer size value and put it into a buffer like |
| 1053 | * the drive would want to see a number-of-sector value. |
| 1054 | */ |
| 1055 | static void size_to_buf(unsigned int size, unsigned char *buf) |
| 1056 | { |
| 1057 | buf[0] = size / 65536; |
| 1058 | size = size % 65536; |
| 1059 | buf[1] = size / 256; |
| 1060 | buf[2] = size % 256; |
| 1061 | } |
| 1062 | |
| 1063 | /* Starts a read operation. Returns 0 on success and 1 on failure. |
| 1064 | The read operation used here allows multiple sequential sectors |
| 1065 | to be read and status returned for each sector. The driver will |
| 1066 | read the output one at a time as the requests come and abort the |
| 1067 | operation if the requested sector is not the next one from the |
| 1068 | drive. */ |
| 1069 | static int |
| 1070 | start_request(unsigned int sector, unsigned int nsect) |
| 1071 | { |
| 1072 | unsigned char params[6]; |
| 1073 | unsigned long retry_count; |
| 1074 | |
| 1075 | |
| 1076 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1077 | log_to_msf(sector, params); |
| 1078 | size_to_buf(nsect, ¶ms[3]); |
| 1079 | |
| 1080 | /* |
| 1081 | * Clear any outstanding attentions and wait for the drive to |
| 1082 | * complete any pending operations. |
| 1083 | */ |
| 1084 | while (handle_sony_cd_attention()); |
| 1085 | |
| 1086 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 1087 | while (time_before(jiffies, retry_count) && (is_busy())) { |
| 1088 | sony_sleep(); |
| 1089 | |
| 1090 | while (handle_sony_cd_attention()); |
| 1091 | } |
| 1092 | |
| 1093 | if (is_busy()) { |
| 1094 | printk(KERN_NOTICE PFX "Timeout while waiting " |
| 1095 | "to issue command\n"); |
| 1096 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 1097 | return 1; |
| 1098 | } else { |
| 1099 | /* Issue the command */ |
| 1100 | clear_result_ready(); |
| 1101 | clear_param_reg(); |
| 1102 | |
| 1103 | write_params(params, 6); |
| 1104 | write_cmd(SONY_READ_BLKERR_STAT_CMD); |
| 1105 | |
| 1106 | sony_blocks_left = nsect * 4; |
| 1107 | sony_next_block = sector * 4; |
| 1108 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 1109 | return 0; |
| 1110 | } |
| 1111 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 1112 | } |
| 1113 | |
| 1114 | /* Abort a pending read operation. Clear all the drive status variables. */ |
| 1115 | static void abort_read(void) |
| 1116 | { |
| 1117 | unsigned char result_reg[2]; |
| 1118 | int result_size; |
| 1119 | volatile int val; |
| 1120 | |
| 1121 | |
| 1122 | do_sony_cd_cmd(SONY_ABORT_CMD, NULL, 0, result_reg, &result_size); |
| 1123 | if ((result_reg[0] & 0xf0) == 0x20) { |
| 1124 | printk(KERN_ERR PFX "Aborting read, %s error\n", |
| 1125 | translate_error(result_reg[1])); |
| 1126 | } |
| 1127 | |
| 1128 | while (is_result_reg_not_empty()) { |
| 1129 | val = read_result_register(); |
| 1130 | } |
| 1131 | clear_data_ready(); |
| 1132 | clear_result_ready(); |
| 1133 | /* Clear out the data */ |
| 1134 | while (is_data_requested()) { |
| 1135 | val = read_data_register(); |
| 1136 | } |
| 1137 | |
| 1138 | sony_blocks_left = 0; |
| 1139 | } |
| 1140 | |
| 1141 | /* Called when the timer times out. This will abort the |
| 1142 | pending read operation. */ |
| 1143 | static void handle_abort_timeout(unsigned long data) |
| 1144 | { |
| 1145 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1146 | /* If it is in use, ignore it. */ |
| 1147 | if (down_trylock(&sony_sem) == 0) { |
| 1148 | /* We can't use abort_read(), because it will sleep |
| 1149 | or schedule in the timer interrupt. Just start |
| 1150 | the operation, finish it on the next access to |
| 1151 | the drive. */ |
| 1152 | clear_result_ready(); |
| 1153 | clear_param_reg(); |
| 1154 | write_cmd(SONY_ABORT_CMD); |
| 1155 | |
| 1156 | sony_blocks_left = 0; |
| 1157 | abort_read_started = 1; |
| 1158 | up(&sony_sem); |
| 1159 | } |
| 1160 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); |
| 1161 | } |
| 1162 | |
| 1163 | /* Actually get one sector of data from the drive. */ |
| 1164 | static void |
| 1165 | input_data_sector(char *buffer) |
| 1166 | { |
| 1167 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1168 | |
| 1169 | /* If an XA disk on a CDU31A, skip the first 12 bytes of data from |
| 1170 | the disk. The real data is after that. We can use audio_buffer. */ |
| 1171 | if (sony_xa_mode) |
| 1172 | insb(sony_cd_read_reg, audio_buffer, CD_XA_HEAD); |
| 1173 | |
| 1174 | clear_data_ready(); |
| 1175 | |
| 1176 | insb(sony_cd_read_reg, buffer, 2048); |
| 1177 | |
| 1178 | /* If an XA disk, we have to clear out the rest of the unused |
| 1179 | error correction data. We can use audio_buffer for that. */ |
| 1180 | if (sony_xa_mode) |
| 1181 | insb(sony_cd_read_reg, audio_buffer, CD_XA_TAIL); |
| 1182 | |
| 1183 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); |
| 1184 | } |
| 1185 | |
| 1186 | /* read data from the drive. Note the nsect must be <= 4. */ |
| 1187 | static void |
| 1188 | read_data_block(char *buffer, |
| 1189 | unsigned int block, |
| 1190 | unsigned int nblocks, |
| 1191 | unsigned char res_reg[], int *res_size) |
| 1192 | { |
| 1193 | unsigned long retry_count; |
| 1194 | |
| 1195 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1196 | |
| 1197 | res_reg[0] = 0; |
| 1198 | res_reg[1] = 0; |
| 1199 | *res_size = 0; |
| 1200 | |
| 1201 | /* Wait for the drive to tell us we have something */ |
| 1202 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 1203 | while (time_before(jiffies, retry_count) && !(is_data_ready())) { |
| 1204 | while (handle_sony_cd_attention()); |
| 1205 | |
| 1206 | sony_sleep(); |
| 1207 | } |
| 1208 | if (!(is_data_ready())) { |
| 1209 | if (is_result_ready()) { |
| 1210 | get_result(res_reg, res_size); |
| 1211 | if ((res_reg[0] & 0xf0) != 0x20) { |
| 1212 | printk(KERN_NOTICE PFX "Got result that should" |
| 1213 | " have been error: %d\n", res_reg[0]); |
| 1214 | res_reg[0] = 0x20; |
| 1215 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 1216 | *res_size = 2; |
| 1217 | } |
| 1218 | abort_read(); |
| 1219 | } else { |
| 1220 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 1221 | res_reg[0] = 0x20; |
| 1222 | res_reg[1] = SONY_TIMEOUT_OP_ERR; |
| 1223 | *res_size = 2; |
| 1224 | abort_read(); |
| 1225 | } |
| 1226 | } else { |
| 1227 | input_data_sector(buffer); |
| 1228 | sony_blocks_left -= nblocks; |
| 1229 | sony_next_block += nblocks; |
| 1230 | |
| 1231 | /* Wait for the status from the drive. */ |
| 1232 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 1233 | while (time_before(jiffies, retry_count) |
| 1234 | && !(is_result_ready())) { |
| 1235 | while (handle_sony_cd_attention()); |
| 1236 | |
| 1237 | sony_sleep(); |
| 1238 | } |
| 1239 | |
| 1240 | if (!is_result_ready()) { |
| 1241 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 1242 | res_reg[0] = 0x20; |
| 1243 | res_reg[1] = SONY_TIMEOUT_OP_ERR; |
| 1244 | *res_size = 2; |
| 1245 | abort_read(); |
| 1246 | } else { |
| 1247 | get_result(res_reg, res_size); |
| 1248 | |
| 1249 | /* If we got a buffer status, handle that. */ |
| 1250 | if ((res_reg[0] & 0xf0) == 0x50) { |
| 1251 | |
| 1252 | if ((res_reg[0] == |
| 1253 | SONY_NO_CIRC_ERR_BLK_STAT) |
| 1254 | || (res_reg[0] == |
| 1255 | SONY_NO_LECC_ERR_BLK_STAT) |
| 1256 | || (res_reg[0] == |
| 1257 | SONY_RECOV_LECC_ERR_BLK_STAT)) { |
| 1258 | /* nothing here */ |
| 1259 | } else { |
| 1260 | printk(KERN_ERR PFX "Data block " |
| 1261 | "error: 0x%x\n", res_reg[0]); |
| 1262 | res_reg[0] = 0x20; |
| 1263 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 1264 | *res_size = 2; |
| 1265 | } |
| 1266 | |
| 1267 | /* Final transfer is done for read command, get final result. */ |
| 1268 | if (sony_blocks_left == 0) { |
| 1269 | get_result(res_reg, res_size); |
| 1270 | } |
| 1271 | } else if ((res_reg[0] & 0xf0) != 0x20) { |
| 1272 | /* The drive gave me bad status, I don't know what to do. |
| 1273 | Reset the driver and return an error. */ |
| 1274 | printk(KERN_ERR PFX "Invalid block " |
| 1275 | "status: 0x%x\n", res_reg[0]); |
| 1276 | restart_on_error(); |
| 1277 | res_reg[0] = 0x20; |
| 1278 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 1279 | *res_size = 2; |
| 1280 | } |
| 1281 | } |
| 1282 | } |
| 1283 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 1284 | } |
| 1285 | |
| 1286 | |
| 1287 | /* |
| 1288 | * The OS calls this to perform a read or write operation to the drive. |
| 1289 | * Write obviously fail. Reads to a read ahead of sony_buffer_size |
| 1290 | * bytes to help speed operations. This especially helps since the OS |
| 1291 | * uses 1024 byte blocks and the drive uses 2048 byte blocks. Since most |
| 1292 | * data access on a CD is done sequentially, this saves a lot of operations. |
| 1293 | */ |
| 1294 | static void do_cdu31a_request(request_queue_t * q) |
| 1295 | { |
| 1296 | struct request *req; |
| 1297 | int block, nblock, num_retries; |
| 1298 | unsigned char res_reg[12]; |
| 1299 | unsigned int res_size; |
| 1300 | |
| 1301 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1302 | |
| 1303 | spin_unlock_irq(q->queue_lock); |
| 1304 | if (down_interruptible(&sony_sem)) { |
| 1305 | spin_lock_irq(q->queue_lock); |
| 1306 | return; |
| 1307 | } |
| 1308 | |
| 1309 | /* Get drive status before doing anything. */ |
| 1310 | while (handle_sony_cd_attention()); |
| 1311 | |
| 1312 | /* Make sure we have a valid TOC. */ |
| 1313 | sony_get_toc(); |
| 1314 | |
| 1315 | |
| 1316 | /* Make sure the timer is cancelled. */ |
| 1317 | del_timer(&cdu31a_abort_timer); |
| 1318 | |
| 1319 | while (1) { |
| 1320 | /* |
| 1321 | * The beginning here is stolen from the hard disk driver. I hope |
| 1322 | * it's right. |
| 1323 | */ |
| 1324 | req = elv_next_request(q); |
| 1325 | if (!req) |
| 1326 | goto end_do_cdu31a_request; |
| 1327 | |
| 1328 | if (!sony_spun_up) |
| 1329 | scd_spinup(); |
| 1330 | |
| 1331 | block = req->sector; |
| 1332 | nblock = req->nr_sectors; |
| 1333 | pr_debug(PFX "request at block %d, length %d blocks\n", |
| 1334 | block, nblock); |
| 1335 | if (!sony_toc_read) { |
| 1336 | printk(KERN_NOTICE PFX "TOC not read\n"); |
| 1337 | end_request(req, 0); |
| 1338 | continue; |
| 1339 | } |
| 1340 | |
| 1341 | /* WTF??? */ |
| 1342 | if (!(req->flags & REQ_CMD)) |
| 1343 | continue; |
| 1344 | if (rq_data_dir(req) == WRITE) { |
| 1345 | end_request(req, 0); |
| 1346 | continue; |
| 1347 | } |
| 1348 | |
| 1349 | /* |
| 1350 | * If the block address is invalid or the request goes beyond the end of |
| 1351 | * the media, return an error. |
| 1352 | */ |
| 1353 | if (((block + nblock) / 4) >= sony_toc.lead_out_start_lba) { |
| 1354 | printk(KERN_NOTICE PFX "Request past end of media\n"); |
| 1355 | end_request(req, 0); |
| 1356 | continue; |
| 1357 | } |
| 1358 | |
| 1359 | if (nblock > 4) |
| 1360 | nblock = 4; |
| 1361 | num_retries = 0; |
| 1362 | |
| 1363 | try_read_again: |
| 1364 | while (handle_sony_cd_attention()); |
| 1365 | |
| 1366 | if (!sony_toc_read) { |
| 1367 | printk(KERN_NOTICE PFX "TOC not read\n"); |
| 1368 | end_request(req, 0); |
| 1369 | continue; |
| 1370 | } |
| 1371 | |
| 1372 | /* If no data is left to be read from the drive, start the |
| 1373 | next request. */ |
| 1374 | if (sony_blocks_left == 0) { |
| 1375 | if (start_request(block / 4, nblock / 4)) { |
| 1376 | end_request(req, 0); |
| 1377 | continue; |
| 1378 | } |
| 1379 | } |
| 1380 | /* If the requested block is not the next one waiting in |
| 1381 | the driver, abort the current operation and start a |
| 1382 | new one. */ |
| 1383 | else if (block != sony_next_block) { |
| 1384 | pr_debug(PFX "Read for block %d, expected %d\n", |
| 1385 | block, sony_next_block); |
| 1386 | abort_read(); |
| 1387 | if (!sony_toc_read) { |
| 1388 | printk(KERN_NOTICE PFX "TOC not read\n"); |
| 1389 | end_request(req, 0); |
| 1390 | continue; |
| 1391 | } |
| 1392 | if (start_request(block / 4, nblock / 4)) { |
| 1393 | printk(KERN_NOTICE PFX "start request failed\n"); |
| 1394 | end_request(req, 0); |
| 1395 | continue; |
| 1396 | } |
| 1397 | } |
| 1398 | |
| 1399 | read_data_block(req->buffer, block, nblock, res_reg, &res_size); |
| 1400 | |
| 1401 | if (res_reg[0] != 0x20) { |
| 1402 | if (!end_that_request_first(req, 1, nblock)) { |
| 1403 | spin_lock_irq(q->queue_lock); |
| 1404 | blkdev_dequeue_request(req); |
| 1405 | end_that_request_last(req); |
| 1406 | spin_unlock_irq(q->queue_lock); |
| 1407 | } |
| 1408 | continue; |
| 1409 | } |
| 1410 | |
| 1411 | if (num_retries > MAX_CDU31A_RETRIES) { |
| 1412 | end_request(req, 0); |
| 1413 | continue; |
| 1414 | } |
| 1415 | |
| 1416 | num_retries++; |
| 1417 | if (res_reg[1] == SONY_NOT_SPIN_ERR) { |
| 1418 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, |
| 1419 | &res_size); |
| 1420 | } else { |
| 1421 | printk(KERN_NOTICE PFX "%s error for block %d, nblock %d\n", |
| 1422 | translate_error(res_reg[1]), block, nblock); |
| 1423 | } |
| 1424 | goto try_read_again; |
| 1425 | } |
| 1426 | end_do_cdu31a_request: |
| 1427 | #if 0 |
| 1428 | /* After finished, cancel any pending operations. */ |
| 1429 | abort_read(); |
| 1430 | #else |
| 1431 | /* Start a timer to time out after a while to disable |
| 1432 | the read. */ |
| 1433 | cdu31a_abort_timer.expires = jiffies + 2 * HZ; /* Wait 2 seconds */ |
| 1434 | add_timer(&cdu31a_abort_timer); |
| 1435 | #endif |
| 1436 | |
| 1437 | up(&sony_sem); |
| 1438 | spin_lock_irq(q->queue_lock); |
| 1439 | pr_debug(PFX "Leaving %s at %d\n", __FUNCTION__, __LINE__); |
| 1440 | } |
| 1441 | |
| 1442 | |
| 1443 | /* |
| 1444 | * Read the table of contents from the drive and set up TOC if |
| 1445 | * successful. |
| 1446 | */ |
| 1447 | static void sony_get_toc(void) |
| 1448 | { |
| 1449 | unsigned char res_reg[2]; |
| 1450 | unsigned int res_size; |
| 1451 | unsigned char parms[1]; |
| 1452 | int session; |
| 1453 | int num_spin_ups; |
| 1454 | int totaltracks = 0; |
| 1455 | int mint = 99; |
| 1456 | int maxt = 0; |
| 1457 | |
| 1458 | pr_debug(PFX "Entering %s\n", __FUNCTION__); |
| 1459 | |
| 1460 | num_spin_ups = 0; |
| 1461 | if (!sony_toc_read) { |
| 1462 | respinup_on_gettoc: |
| 1463 | /* Ignore the result, since it might error if spinning already. */ |
| 1464 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, |
| 1465 | &res_size); |
| 1466 | |
| 1467 | do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, |
| 1468 | &res_size); |
| 1469 | |
| 1470 | /* The drive sometimes returns error 0. I don't know why, but ignore |
| 1471 | it. It seems to mean the drive has already done the operation. */ |
| 1472 | if ((res_size < 2) |
| 1473 | || ((res_reg[0] != 0) && (res_reg[1] != 0))) { |
| 1474 | /* If the drive is already playing, it's ok. */ |
| 1475 | if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR) |
| 1476 | || (res_reg[1] == 0)) { |
| 1477 | goto gettoc_drive_spinning; |
| 1478 | } |
| 1479 | |
| 1480 | /* If the drive says it is not spun up (even though we just did it!) |
| 1481 | then retry the operation at least a few times. */ |
| 1482 | if ((res_reg[1] == SONY_NOT_SPIN_ERR) |
| 1483 | && (num_spin_ups < MAX_CDU31A_RETRIES)) { |
| 1484 | num_spin_ups++; |
| 1485 | goto respinup_on_gettoc; |
| 1486 | } |
| 1487 | |
| 1488 | printk("cdu31a: Error reading TOC: %x %s\n", |
| 1489 | res_reg[0], translate_error(res_reg[1])); |
| 1490 | return; |
| 1491 | } |
| 1492 | |
| 1493 | gettoc_drive_spinning: |
| 1494 | |
| 1495 | /* The idea here is we keep asking for sessions until the command |
| 1496 | fails. Then we know what the last valid session on the disk is. |
| 1497 | No need to check session 0, since session 0 is the same as session |
| 1498 | 1; the command returns different information if you give it 0. |
| 1499 | */ |
| 1500 | #if DEBUG |
| 1501 | memset(&sony_toc, 0x0e, sizeof(sony_toc)); |
| 1502 | memset(&single_toc, 0x0f, sizeof(single_toc)); |
| 1503 | #endif |
| 1504 | session = 1; |
| 1505 | while (1) { |
| 1506 | /* This seems to slow things down enough to make it work. This |
| 1507 | * appears to be a problem in do_sony_cd_cmd. This printk seems |
| 1508 | * to address the symptoms... -Erik */ |
| 1509 | pr_debug(PFX "Trying session %d\n", session); |
| 1510 | parms[0] = session; |
| 1511 | do_sony_cd_cmd(SONY_READ_TOC_SPEC_CMD, |
| 1512 | parms, 1, res_reg, &res_size); |
| 1513 | |
| 1514 | pr_debug(PFX "%2.2x %2.2x\n", res_reg[0], res_reg[1]); |
| 1515 | |
| 1516 | if ((res_size < 2) |
| 1517 | || ((res_reg[0] & 0xf0) == 0x20)) { |
| 1518 | /* An error reading the TOC, this must be past the last session. */ |
| 1519 | if (session == 1) |
| 1520 | printk |
| 1521 | ("Yikes! Couldn't read any sessions!"); |
| 1522 | break; |
| 1523 | } |
| 1524 | pr_debug(PFX "Reading session %d\n", session); |
| 1525 | |
| 1526 | parms[0] = session; |
| 1527 | do_sony_cd_cmd(SONY_REQ_TOC_DATA_SPEC_CMD, |
| 1528 | parms, |
| 1529 | 1, |
| 1530 | (unsigned char *) &single_toc, |
| 1531 | &res_size); |
| 1532 | if ((res_size < 2) |
| 1533 | || ((single_toc.exec_status[0] & 0xf0) == |
| 1534 | 0x20)) { |
| 1535 | printk(KERN_ERR PFX "Error reading " |
| 1536 | "session %d: %x %s\n", |
| 1537 | session, single_toc.exec_status[0], |
| 1538 | translate_error(single_toc. |
| 1539 | exec_status[1])); |
| 1540 | /* An error reading the TOC. Return without sony_toc_read |
| 1541 | set. */ |
| 1542 | return; |
| 1543 | } |
| 1544 | pr_debug(PFX "add0 %01x, con0 %01x, poi0 %02x, " |
| 1545 | "1st trk %d, dsktyp %x, dum0 %x\n", |
| 1546 | single_toc.address0, single_toc.control0, |
| 1547 | single_toc.point0, |
| 1548 | bcd_to_int(single_toc.first_track_num), |
| 1549 | single_toc.disk_type, single_toc.dummy0); |
| 1550 | pr_debug(PFX "add1 %01x, con1 %01x, poi1 %02x, " |
| 1551 | "lst trk %d, dummy1 %x, dum2 %x\n", |
| 1552 | single_toc.address1, single_toc.control1, |
| 1553 | single_toc.point1, |
| 1554 | bcd_to_int(single_toc.last_track_num), |
| 1555 | single_toc.dummy1, single_toc.dummy2); |
| 1556 | pr_debug(PFX "add2 %01x, con2 %01x, poi2 %02x " |
| 1557 | "leadout start min %d, sec %d, frame %d\n", |
| 1558 | single_toc.address2, single_toc.control2, |
| 1559 | single_toc.point2, |
| 1560 | bcd_to_int(single_toc.lead_out_start_msf[0]), |
| 1561 | bcd_to_int(single_toc.lead_out_start_msf[1]), |
| 1562 | bcd_to_int(single_toc.lead_out_start_msf[2])); |
| 1563 | if (res_size > 18 && single_toc.pointb0 > 0xaf) |
| 1564 | pr_debug(PFX "addb0 %01x, conb0 %01x, poib0 %02x, nextsession min %d, sec %d, frame %d\n" |
| 1565 | "#mode5_ptrs %02d, max_start_outer_leadout_msf min %d, sec %d, frame %d\n", |
| 1566 | single_toc.addressb0, |
| 1567 | single_toc.controlb0, |
| 1568 | single_toc.pointb0, |
| 1569 | bcd_to_int(single_toc. |
| 1570 | next_poss_prog_area_msf |
| 1571 | [0]), |
| 1572 | bcd_to_int(single_toc. |
| 1573 | next_poss_prog_area_msf |
| 1574 | [1]), |
| 1575 | bcd_to_int(single_toc. |
| 1576 | next_poss_prog_area_msf |
| 1577 | [2]), |
| 1578 | single_toc.num_mode_5_pointers, |
| 1579 | bcd_to_int(single_toc. |
| 1580 | max_start_outer_leadout_msf |
| 1581 | [0]), |
| 1582 | bcd_to_int(single_toc. |
| 1583 | max_start_outer_leadout_msf |
| 1584 | [1]), |
| 1585 | bcd_to_int(single_toc. |
| 1586 | max_start_outer_leadout_msf |
| 1587 | [2])); |
| 1588 | if (res_size > 27 && single_toc.pointb1 > 0xaf) |
| 1589 | pr_debug(PFX "addb1 %01x, conb1 %01x, poib1 %02x, %x %x %x %x #skipint_ptrs %d, #skiptrkassign %d %x\n", |
| 1590 | single_toc.addressb1, |
| 1591 | single_toc.controlb1, |
| 1592 | single_toc.pointb1, |
| 1593 | single_toc.dummyb0_1[0], |
| 1594 | single_toc.dummyb0_1[1], |
| 1595 | single_toc.dummyb0_1[2], |
| 1596 | single_toc.dummyb0_1[3], |
| 1597 | single_toc.num_skip_interval_pointers, |
| 1598 | single_toc.num_skip_track_assignments, |
| 1599 | single_toc.dummyb0_2); |
| 1600 | if (res_size > 36 && single_toc.pointb2 > 0xaf) |
| 1601 | pr_debug(PFX "addb2 %01x, conb2 %01x, poib2 %02x, %02x %02x %02x %02x %02x %02x %02x\n", |
| 1602 | single_toc.addressb2, |
| 1603 | single_toc.controlb2, |
| 1604 | single_toc.pointb2, |
| 1605 | single_toc.tracksb2[0], |
| 1606 | single_toc.tracksb2[1], |
| 1607 | single_toc.tracksb2[2], |
| 1608 | single_toc.tracksb2[3], |
| 1609 | single_toc.tracksb2[4], |
| 1610 | single_toc.tracksb2[5], |
| 1611 | single_toc.tracksb2[6]); |
| 1612 | if (res_size > 45 && single_toc.pointb3 > 0xaf) |
| 1613 | pr_debug(PFX "addb3 %01x, conb3 %01x, poib3 %02x, %02x %02x %02x %02x %02x %02x %02x\n", |
| 1614 | single_toc.addressb3, |
| 1615 | single_toc.controlb3, |
| 1616 | single_toc.pointb3, |
| 1617 | single_toc.tracksb3[0], |
| 1618 | single_toc.tracksb3[1], |
| 1619 | single_toc.tracksb3[2], |
| 1620 | single_toc.tracksb3[3], |
| 1621 | single_toc.tracksb3[4], |
| 1622 | single_toc.tracksb3[5], |
| 1623 | single_toc.tracksb3[6]); |
| 1624 | if (res_size > 54 && single_toc.pointb4 > 0xaf) |
| 1625 | pr_debug(PFX "addb4 %01x, conb4 %01x, poib4 %02x, %02x %02x %02x %02x %02x %02x %02x\n", |
| 1626 | single_toc.addressb4, |
| 1627 | single_toc.controlb4, |
| 1628 | single_toc.pointb4, |
| 1629 | single_toc.tracksb4[0], |
| 1630 | single_toc.tracksb4[1], |
| 1631 | single_toc.tracksb4[2], |
| 1632 | single_toc.tracksb4[3], |
| 1633 | single_toc.tracksb4[4], |
| 1634 | single_toc.tracksb4[5], |
| 1635 | single_toc.tracksb4[6]); |
| 1636 | if (res_size > 63 && single_toc.pointc0 > 0xaf) |
| 1637 | pr_debug(PFX "addc0 %01x, conc0 %01x, poic0 %02x, %02x %02x %02x %02x %02x %02x %02x\n", |
| 1638 | single_toc.addressc0, |
| 1639 | single_toc.controlc0, |
| 1640 | single_toc.pointc0, |
| 1641 | single_toc.dummyc0[0], |
| 1642 | single_toc.dummyc0[1], |
| 1643 | single_toc.dummyc0[2], |
| 1644 | single_toc.dummyc0[3], |
| 1645 | single_toc.dummyc0[4], |
| 1646 | single_toc.dummyc0[5], |
| 1647 | single_toc.dummyc0[6]); |
| 1648 | #undef DEBUG |
| 1649 | #define DEBUG 0 |
| 1650 | |
| 1651 | sony_toc.lead_out_start_msf[0] = |
| 1652 | bcd_to_int(single_toc.lead_out_start_msf[0]); |
| 1653 | sony_toc.lead_out_start_msf[1] = |
| 1654 | bcd_to_int(single_toc.lead_out_start_msf[1]); |
| 1655 | sony_toc.lead_out_start_msf[2] = |
| 1656 | bcd_to_int(single_toc.lead_out_start_msf[2]); |
| 1657 | sony_toc.lead_out_start_lba = |
| 1658 | single_toc.lead_out_start_lba = |
| 1659 | msf_to_log(sony_toc.lead_out_start_msf); |
| 1660 | |
| 1661 | /* For points that do not exist, move the data over them |
| 1662 | to the right location. */ |
| 1663 | if (single_toc.pointb0 != 0xb0) { |
| 1664 | memmove(((char *) &single_toc) + 27, |
| 1665 | ((char *) &single_toc) + 18, |
| 1666 | res_size - 18); |
| 1667 | res_size += 9; |
| 1668 | } else if (res_size > 18) { |
| 1669 | sony_toc.lead_out_start_msf[0] = |
| 1670 | bcd_to_int(single_toc. |
| 1671 | max_start_outer_leadout_msf |
| 1672 | [0]); |
| 1673 | sony_toc.lead_out_start_msf[1] = |
| 1674 | bcd_to_int(single_toc. |
| 1675 | max_start_outer_leadout_msf |
| 1676 | [1]); |
| 1677 | sony_toc.lead_out_start_msf[2] = |
| 1678 | bcd_to_int(single_toc. |
| 1679 | max_start_outer_leadout_msf |
| 1680 | [2]); |
| 1681 | sony_toc.lead_out_start_lba = |
| 1682 | msf_to_log(sony_toc. |
| 1683 | lead_out_start_msf); |
| 1684 | } |
| 1685 | if (single_toc.pointb1 != 0xb1) { |
| 1686 | memmove(((char *) &single_toc) + 36, |
| 1687 | ((char *) &single_toc) + 27, |
| 1688 | res_size - 27); |
| 1689 | res_size += 9; |
| 1690 | } |
| 1691 | if (single_toc.pointb2 != 0xb2) { |
| 1692 | memmove(((char *) &single_toc) + 45, |
| 1693 | ((char *) &single_toc) + 36, |
| 1694 | res_size - 36); |
| 1695 | res_size += 9; |
| 1696 | } |
| 1697 | if (single_toc.pointb3 != 0xb3) { |
| 1698 | memmove(((char *) &single_toc) + 54, |
| 1699 | ((char *) &single_toc) + 45, |
| 1700 | res_size - 45); |
| 1701 | res_size += 9; |
| 1702 | } |
| 1703 | if (single_toc.pointb4 != 0xb4) { |
| 1704 | memmove(((char *) &single_toc) + 63, |
| 1705 | ((char *) &single_toc) + 54, |
| 1706 | res_size - 54); |
| 1707 | res_size += 9; |
| 1708 | } |
| 1709 | if (single_toc.pointc0 != 0xc0) { |
| 1710 | memmove(((char *) &single_toc) + 72, |
| 1711 | ((char *) &single_toc) + 63, |
| 1712 | res_size - 63); |
| 1713 | res_size += 9; |
| 1714 | } |
| 1715 | #if DEBUG |
| 1716 | printk(PRINT_INFO PFX "start track lba %u, " |
| 1717 | "leadout start lba %u\n", |
| 1718 | single_toc.start_track_lba, |
| 1719 | single_toc.lead_out_start_lba); |
| 1720 | { |
| 1721 | int i; |
| 1722 | for (i = 0; |
| 1723 | i < |
| 1724 | 1 + |
| 1725 | bcd_to_int(single_toc.last_track_num) |
| 1726 | - |
| 1727 | bcd_to_int(single_toc. |
| 1728 | first_track_num); i++) { |
| 1729 | printk(KERN_INFO PFX "trk %02d: add 0x%01x, con 0x%01x, track %02d, start min %02d, sec %02d, frame %02d\n", |
| 1730 | i, |
| 1731 | single_toc.tracks[i].address, |
| 1732 | single_toc.tracks[i].control, |
| 1733 | bcd_to_int(single_toc. |
| 1734 | tracks[i].track), |
| 1735 | bcd_to_int(single_toc. |
| 1736 | tracks[i]. |
| 1737 | track_start_msf |
| 1738 | [0]), |
| 1739 | bcd_to_int(single_toc. |
| 1740 | tracks[i]. |
| 1741 | track_start_msf |
| 1742 | [1]), |
| 1743 | bcd_to_int(single_toc. |
| 1744 | tracks[i]. |
| 1745 | track_start_msf |
| 1746 | [2])); |
| 1747 | if (mint > |
| 1748 | bcd_to_int(single_toc. |
| 1749 | tracks[i].track)) |
| 1750 | mint = |
| 1751 | bcd_to_int(single_toc. |
| 1752 | tracks[i]. |
| 1753 | track); |
| 1754 | if (maxt < |
| 1755 | bcd_to_int(single_toc. |
| 1756 | tracks[i].track)) |
| 1757 | maxt = |
| 1758 | bcd_to_int(single_toc. |
| 1759 | tracks[i]. |
| 1760 | track); |
| 1761 | } |
| 1762 | printk(KERN_INFO PFX "min track number %d, " |
| 1763 | "max track number %d\n", |
| 1764 | mint, maxt); |
| 1765 | } |
| 1766 | #endif |
| 1767 | |
| 1768 | /* prepare a special table of contents for a CD-I disc. They don't have one. */ |
| 1769 | if (single_toc.disk_type == 0x10 && |
| 1770 | single_toc.first_track_num == 2 && |
| 1771 | single_toc.last_track_num == 2 /* CD-I */ ) { |
| 1772 | sony_toc.tracks[totaltracks].address = 1; |
| 1773 | sony_toc.tracks[totaltracks].control = 4; /* force data tracks */ |
| 1774 | sony_toc.tracks[totaltracks].track = 1; |
| 1775 | sony_toc.tracks[totaltracks]. |
| 1776 | track_start_msf[0] = 0; |
| 1777 | sony_toc.tracks[totaltracks]. |
| 1778 | track_start_msf[1] = 2; |
| 1779 | sony_toc.tracks[totaltracks]. |
| 1780 | track_start_msf[2] = 0; |
| 1781 | mint = maxt = 1; |
| 1782 | totaltracks++; |
| 1783 | } else |
| 1784 | /* gather track entries from this session */ |
| 1785 | { |
| 1786 | int i; |
| 1787 | for (i = 0; |
| 1788 | i < |
| 1789 | 1 + |
| 1790 | bcd_to_int(single_toc.last_track_num) |
| 1791 | - |
| 1792 | bcd_to_int(single_toc. |
| 1793 | first_track_num); |
| 1794 | i++, totaltracks++) { |
| 1795 | sony_toc.tracks[totaltracks]. |
| 1796 | address = |
| 1797 | single_toc.tracks[i].address; |
| 1798 | sony_toc.tracks[totaltracks]. |
| 1799 | control = |
| 1800 | single_toc.tracks[i].control; |
| 1801 | sony_toc.tracks[totaltracks]. |
| 1802 | track = |
| 1803 | bcd_to_int(single_toc. |
| 1804 | tracks[i].track); |
| 1805 | sony_toc.tracks[totaltracks]. |
| 1806 | track_start_msf[0] = |
| 1807 | bcd_to_int(single_toc. |
| 1808 | tracks[i]. |
| 1809 | track_start_msf[0]); |
| 1810 | sony_toc.tracks[totaltracks]. |
| 1811 | track_start_msf[1] = |
| 1812 | bcd_to_int(single_toc. |
| 1813 | tracks[i]. |
| 1814 | track_start_msf[1]); |
| 1815 | sony_toc.tracks[totaltracks]. |
| 1816 | track_start_msf[2] = |
| 1817 | bcd_to_int(single_toc. |
| 1818 | tracks[i]. |
| 1819 | track_start_msf[2]); |
| 1820 | if (i == 0) |
| 1821 | single_toc. |
| 1822 | start_track_lba = |
| 1823 | msf_to_log(sony_toc. |
| 1824 | tracks |
| 1825 | [totaltracks]. |
| 1826 | track_start_msf); |
| 1827 | if (mint > |
| 1828 | sony_toc.tracks[totaltracks]. |
| 1829 | track) |
| 1830 | mint = |
| 1831 | sony_toc. |
| 1832 | tracks[totaltracks]. |
| 1833 | track; |
| 1834 | if (maxt < |
| 1835 | sony_toc.tracks[totaltracks]. |
| 1836 | track) |
| 1837 | maxt = |
| 1838 | sony_toc. |
| 1839 | tracks[totaltracks]. |
| 1840 | track; |
| 1841 | } |
| 1842 | } |
| 1843 | sony_toc.first_track_num = mint; |
| 1844 | sony_toc.last_track_num = maxt; |
| 1845 | /* Disk type of last session wins. For example: |
| 1846 | CD-Extra has disk type 0 for the first session, so |
| 1847 | a dumb HiFi CD player thinks it is a plain audio CD. |
| 1848 | We are interested in the disk type of the last session, |
| 1849 | which is 0x20 (XA) for CD-Extra, so we can access the |
| 1850 | data track ... */ |
| 1851 | sony_toc.disk_type = single_toc.disk_type; |
| 1852 | sony_toc.sessions = session; |
| 1853 | |
| 1854 | /* don't believe everything :-) */ |
| 1855 | if (session == 1) |
| 1856 | single_toc.start_track_lba = 0; |
| 1857 | sony_toc.start_track_lba = |
| 1858 | single_toc.start_track_lba; |
| 1859 | |
| 1860 | if (session > 1 && single_toc.pointb0 == 0xb0 && |
| 1861 | sony_toc.lead_out_start_lba == |
| 1862 | single_toc.lead_out_start_lba) { |
| 1863 | break; |
| 1864 | } |
| 1865 | |
| 1866 | /* Let's not get carried away... */ |
| 1867 | if (session > 40) { |
| 1868 | printk(KERN_NOTICE PFX "too many sessions: " |
| 1869 | "%d\n", session); |
| 1870 | break; |
| 1871 | } |
| 1872 | session++; |
| 1873 | } |
| 1874 | sony_toc.track_entries = totaltracks; |
| 1875 | /* add one entry for the LAST track with track number CDROM_LEADOUT */ |
| 1876 | sony_toc.tracks[totaltracks].address = single_toc.address2; |
| 1877 | sony_toc.tracks[totaltracks].control = single_toc.control2; |
| 1878 | sony_toc.tracks[totaltracks].track = CDROM_LEADOUT; |
| 1879 | sony_toc.tracks[totaltracks].track_start_msf[0] = |
| 1880 | sony_toc.lead_out_start_msf[0]; |
| 1881 | sony_toc.tracks[totaltracks].track_start_msf[1] = |
| 1882 | sony_toc.lead_out_start_msf[1]; |
| 1883 | sony_toc.tracks[totaltracks].track_start_msf[2] = |
| 1884 | sony_toc.lead_out_start_msf[2]; |
| 1885 | |
| 1886 | sony_toc_read = 1; |
| 1887 | |
| 1888 | pr_debug(PFX "Disk session %d, start track: %d, " |
| 1889 | "stop track: %d\n", |
| 1890 | session, single_toc.start_track_lba, |
| 1891 | single_toc.lead_out_start_lba); |
| 1892 | } |
| 1893 | pr_debug(PFX "Leaving %s\n", __FUNCTION__); |
| 1894 | } |
| 1895 | |
| 1896 | |
| 1897 | /* |
| 1898 | * Uniform cdrom interface function |
| 1899 | * return multisession offset and sector information |
| 1900 | */ |
| 1901 | static int scd_get_last_session(struct cdrom_device_info *cdi, |
| 1902 | struct cdrom_multisession *ms_info) |
| 1903 | { |
| 1904 | if (ms_info == NULL) |
| 1905 | return 1; |
| 1906 | |
| 1907 | if (!sony_toc_read) { |
| 1908 | if (down_interruptible(&sony_sem)) |
| 1909 | return -ERESTARTSYS; |
| 1910 | sony_get_toc(); |
| 1911 | up(&sony_sem); |
| 1912 | } |
| 1913 | |
| 1914 | ms_info->addr_format = CDROM_LBA; |
| 1915 | ms_info->addr.lba = sony_toc.start_track_lba; |
| 1916 | ms_info->xa_flag = sony_toc.disk_type == SONY_XA_DISK_TYPE || |
| 1917 | sony_toc.disk_type == 0x10 /* CDI */ ; |
| 1918 | |
| 1919 | return 0; |
| 1920 | } |
| 1921 | |
| 1922 | /* |
| 1923 | * Search for a specific track in the table of contents. |
| 1924 | */ |
| 1925 | static int find_track(int track) |
| 1926 | { |
| 1927 | int i; |
| 1928 | |
| 1929 | for (i = 0; i <= sony_toc.track_entries; i++) { |
| 1930 | if (sony_toc.tracks[i].track == track) { |
| 1931 | return i; |
| 1932 | } |
| 1933 | } |
| 1934 | |
| 1935 | return -1; |
| 1936 | } |
| 1937 | |
| 1938 | |
| 1939 | /* |
| 1940 | * Read the subcode and put it in last_sony_subcode for future use. |
| 1941 | */ |
| 1942 | static int read_subcode(void) |
| 1943 | { |
| 1944 | unsigned int res_size; |
| 1945 | |
| 1946 | |
| 1947 | do_sony_cd_cmd(SONY_REQ_SUBCODE_ADDRESS_CMD, |
| 1948 | NULL, |
| 1949 | 0, (unsigned char *) &last_sony_subcode, &res_size); |
| 1950 | if ((res_size < 2) |
| 1951 | || ((last_sony_subcode.exec_status[0] & 0xf0) == 0x20)) { |
| 1952 | printk(KERN_ERR PFX "Sony CDROM error %s (read_subcode)\n", |
| 1953 | translate_error(last_sony_subcode.exec_status[1])); |
| 1954 | return -EIO; |
| 1955 | } |
| 1956 | |
| 1957 | last_sony_subcode.track_num = |
| 1958 | bcd_to_int(last_sony_subcode.track_num); |
| 1959 | last_sony_subcode.index_num = |
| 1960 | bcd_to_int(last_sony_subcode.index_num); |
| 1961 | last_sony_subcode.abs_msf[0] = |
| 1962 | bcd_to_int(last_sony_subcode.abs_msf[0]); |
| 1963 | last_sony_subcode.abs_msf[1] = |
| 1964 | bcd_to_int(last_sony_subcode.abs_msf[1]); |
| 1965 | last_sony_subcode.abs_msf[2] = |
| 1966 | bcd_to_int(last_sony_subcode.abs_msf[2]); |
| 1967 | |
| 1968 | last_sony_subcode.rel_msf[0] = |
| 1969 | bcd_to_int(last_sony_subcode.rel_msf[0]); |
| 1970 | last_sony_subcode.rel_msf[1] = |
| 1971 | bcd_to_int(last_sony_subcode.rel_msf[1]); |
| 1972 | last_sony_subcode.rel_msf[2] = |
| 1973 | bcd_to_int(last_sony_subcode.rel_msf[2]); |
| 1974 | return 0; |
| 1975 | } |
| 1976 | |
| 1977 | /* |
| 1978 | * Uniform cdrom interface function |
| 1979 | * return the media catalog number found on some older audio cds |
| 1980 | */ |
| 1981 | static int |
| 1982 | scd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn) |
| 1983 | { |
| 1984 | unsigned char resbuffer[2 + 14]; |
| 1985 | unsigned char *mcnp = mcn->medium_catalog_number; |
| 1986 | unsigned char *resp = resbuffer + 3; |
| 1987 | unsigned int res_size; |
| 1988 | |
| 1989 | memset(mcn->medium_catalog_number, 0, 14); |
| 1990 | if (down_interruptible(&sony_sem)) |
| 1991 | return -ERESTARTSYS; |
| 1992 | do_sony_cd_cmd(SONY_REQ_UPC_EAN_CMD, |
| 1993 | NULL, 0, resbuffer, &res_size); |
| 1994 | up(&sony_sem); |
| 1995 | if ((res_size < 2) || ((resbuffer[0] & 0xf0) == 0x20)); |
| 1996 | else { |
| 1997 | /* packed bcd to single ASCII digits */ |
| 1998 | *mcnp++ = (*resp >> 4) + '0'; |
| 1999 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2000 | *mcnp++ = (*resp >> 4) + '0'; |
| 2001 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2002 | *mcnp++ = (*resp >> 4) + '0'; |
| 2003 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2004 | *mcnp++ = (*resp >> 4) + '0'; |
| 2005 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2006 | *mcnp++ = (*resp >> 4) + '0'; |
| 2007 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2008 | *mcnp++ = (*resp >> 4) + '0'; |
| 2009 | *mcnp++ = (*resp++ & 0x0f) + '0'; |
| 2010 | *mcnp++ = (*resp >> 4) + '0'; |
| 2011 | } |
| 2012 | *mcnp = '\0'; |
| 2013 | return 0; |
| 2014 | } |
| 2015 | |
| 2016 | |
| 2017 | /* |
| 2018 | * Get the subchannel info like the CDROMSUBCHNL command wants to see it. If |
| 2019 | * the drive is playing, the subchannel needs to be read (since it would be |
| 2020 | * changing). If the drive is paused or completed, the subcode information has |
| 2021 | * already been stored, just use that. The ioctl call wants things in decimal |
| 2022 | * (not BCD), so all the conversions are done. |
| 2023 | */ |
| 2024 | static int sony_get_subchnl_info(struct cdrom_subchnl *schi) |
| 2025 | { |
| 2026 | /* Get attention stuff */ |
| 2027 | while (handle_sony_cd_attention()); |
| 2028 | |
| 2029 | sony_get_toc(); |
| 2030 | if (!sony_toc_read) { |
| 2031 | return -EIO; |
| 2032 | } |
| 2033 | |
| 2034 | switch (sony_audio_status) { |
| 2035 | case CDROM_AUDIO_NO_STATUS: |
| 2036 | case CDROM_AUDIO_PLAY: |
| 2037 | if (read_subcode() < 0) { |
| 2038 | return -EIO; |
| 2039 | } |
| 2040 | break; |
| 2041 | |
| 2042 | case CDROM_AUDIO_PAUSED: |
| 2043 | case CDROM_AUDIO_COMPLETED: |
| 2044 | break; |
| 2045 | |
| 2046 | #if 0 |
| 2047 | case CDROM_AUDIO_NO_STATUS: |
| 2048 | schi->cdsc_audiostatus = sony_audio_status; |
| 2049 | return 0; |
| 2050 | break; |
| 2051 | #endif |
| 2052 | case CDROM_AUDIO_INVALID: |
| 2053 | case CDROM_AUDIO_ERROR: |
| 2054 | default: |
| 2055 | return -EIO; |
| 2056 | } |
| 2057 | |
| 2058 | schi->cdsc_audiostatus = sony_audio_status; |
| 2059 | schi->cdsc_adr = last_sony_subcode.address; |
| 2060 | schi->cdsc_ctrl = last_sony_subcode.control; |
| 2061 | schi->cdsc_trk = last_sony_subcode.track_num; |
| 2062 | schi->cdsc_ind = last_sony_subcode.index_num; |
| 2063 | if (schi->cdsc_format == CDROM_MSF) { |
| 2064 | schi->cdsc_absaddr.msf.minute = |
| 2065 | last_sony_subcode.abs_msf[0]; |
| 2066 | schi->cdsc_absaddr.msf.second = |
| 2067 | last_sony_subcode.abs_msf[1]; |
| 2068 | schi->cdsc_absaddr.msf.frame = |
| 2069 | last_sony_subcode.abs_msf[2]; |
| 2070 | |
| 2071 | schi->cdsc_reladdr.msf.minute = |
| 2072 | last_sony_subcode.rel_msf[0]; |
| 2073 | schi->cdsc_reladdr.msf.second = |
| 2074 | last_sony_subcode.rel_msf[1]; |
| 2075 | schi->cdsc_reladdr.msf.frame = |
| 2076 | last_sony_subcode.rel_msf[2]; |
| 2077 | } else if (schi->cdsc_format == CDROM_LBA) { |
| 2078 | schi->cdsc_absaddr.lba = |
| 2079 | msf_to_log(last_sony_subcode.abs_msf); |
| 2080 | schi->cdsc_reladdr.lba = |
| 2081 | msf_to_log(last_sony_subcode.rel_msf); |
| 2082 | } |
| 2083 | |
| 2084 | return 0; |
| 2085 | } |
| 2086 | |
| 2087 | /* Get audio data from the drive. This is fairly complex because I |
| 2088 | am looking for status and data at the same time, but if I get status |
| 2089 | then I just look for data. I need to get the status immediately so |
| 2090 | the switch from audio to data tracks will happen quickly. */ |
| 2091 | static void |
| 2092 | read_audio_data(char *buffer, unsigned char res_reg[], int *res_size) |
| 2093 | { |
| 2094 | unsigned long retry_count; |
| 2095 | int result_read; |
| 2096 | |
| 2097 | |
| 2098 | res_reg[0] = 0; |
| 2099 | res_reg[1] = 0; |
| 2100 | *res_size = 0; |
| 2101 | result_read = 0; |
| 2102 | |
| 2103 | /* Wait for the drive to tell us we have something */ |
| 2104 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 2105 | continue_read_audio_wait: |
| 2106 | while (time_before(jiffies, retry_count) && !(is_data_ready()) |
| 2107 | && !(is_result_ready() || result_read)) { |
| 2108 | while (handle_sony_cd_attention()); |
| 2109 | |
| 2110 | sony_sleep(); |
| 2111 | } |
| 2112 | if (!(is_data_ready())) { |
| 2113 | if (is_result_ready() && !result_read) { |
| 2114 | get_result(res_reg, res_size); |
| 2115 | |
| 2116 | /* Read block status and continue waiting for data. */ |
| 2117 | if ((res_reg[0] & 0xf0) == 0x50) { |
| 2118 | result_read = 1; |
| 2119 | goto continue_read_audio_wait; |
| 2120 | } |
| 2121 | /* Invalid data from the drive. Shut down the operation. */ |
| 2122 | else if ((res_reg[0] & 0xf0) != 0x20) { |
| 2123 | printk(KERN_WARNING PFX "Got result that " |
| 2124 | "should have been error: %d\n", |
| 2125 | res_reg[0]); |
| 2126 | res_reg[0] = 0x20; |
| 2127 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 2128 | *res_size = 2; |
| 2129 | } |
| 2130 | abort_read(); |
| 2131 | } else { |
| 2132 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 2133 | res_reg[0] = 0x20; |
| 2134 | res_reg[1] = SONY_TIMEOUT_OP_ERR; |
| 2135 | *res_size = 2; |
| 2136 | abort_read(); |
| 2137 | } |
| 2138 | } else { |
| 2139 | clear_data_ready(); |
| 2140 | |
| 2141 | /* If data block, then get 2340 bytes offset by 12. */ |
| 2142 | if (sony_raw_data_mode) { |
| 2143 | insb(sony_cd_read_reg, buffer + CD_XA_HEAD, |
| 2144 | CD_FRAMESIZE_RAW1); |
| 2145 | } else { |
| 2146 | /* Audio gets the whole 2352 bytes. */ |
| 2147 | insb(sony_cd_read_reg, buffer, CD_FRAMESIZE_RAW); |
| 2148 | } |
| 2149 | |
| 2150 | /* If I haven't already gotten the result, get it now. */ |
| 2151 | if (!result_read) { |
| 2152 | /* Wait for the drive to tell us we have something */ |
| 2153 | retry_count = jiffies + SONY_JIFFIES_TIMEOUT; |
| 2154 | while (time_before(jiffies, retry_count) |
| 2155 | && !(is_result_ready())) { |
| 2156 | while (handle_sony_cd_attention()); |
| 2157 | |
| 2158 | sony_sleep(); |
| 2159 | } |
| 2160 | |
| 2161 | if (!is_result_ready()) { |
| 2162 | pr_debug(PFX "timeout out %d\n", __LINE__); |
| 2163 | res_reg[0] = 0x20; |
| 2164 | res_reg[1] = SONY_TIMEOUT_OP_ERR; |
| 2165 | *res_size = 2; |
| 2166 | abort_read(); |
| 2167 | return; |
| 2168 | } else { |
| 2169 | get_result(res_reg, res_size); |
| 2170 | } |
| 2171 | } |
| 2172 | |
| 2173 | if ((res_reg[0] & 0xf0) == 0x50) { |
| 2174 | if ((res_reg[0] == SONY_NO_CIRC_ERR_BLK_STAT) |
| 2175 | || (res_reg[0] == SONY_NO_LECC_ERR_BLK_STAT) |
| 2176 | || (res_reg[0] == SONY_RECOV_LECC_ERR_BLK_STAT) |
| 2177 | || (res_reg[0] == SONY_NO_ERR_DETECTION_STAT)) { |
| 2178 | /* Ok, nothing to do. */ |
| 2179 | } else { |
| 2180 | printk(KERN_ERR PFX "Data block error: 0x%x\n", |
| 2181 | res_reg[0]); |
| 2182 | res_reg[0] = 0x20; |
| 2183 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 2184 | *res_size = 2; |
| 2185 | } |
| 2186 | } else if ((res_reg[0] & 0xf0) != 0x20) { |
| 2187 | /* The drive gave me bad status, I don't know what to do. |
| 2188 | Reset the driver and return an error. */ |
| 2189 | printk(KERN_NOTICE PFX "Invalid block status: 0x%x\n", |
| 2190 | res_reg[0]); |
| 2191 | restart_on_error(); |
| 2192 | res_reg[0] = 0x20; |
| 2193 | res_reg[1] = SONY_BAD_DATA_ERR; |
| 2194 | *res_size = 2; |
| 2195 | } |
| 2196 | } |
| 2197 | } |
| 2198 | |
| 2199 | /* Perform a raw data read. This will automatically detect the |
| 2200 | track type and read the proper data (audio or data). */ |
| 2201 | static int read_audio(struct cdrom_read_audio *ra) |
| 2202 | { |
| 2203 | int retval; |
| 2204 | unsigned char params[2]; |
| 2205 | unsigned char res_reg[12]; |
| 2206 | unsigned int res_size; |
| 2207 | unsigned int cframe; |
| 2208 | |
| 2209 | if (down_interruptible(&sony_sem)) |
| 2210 | return -ERESTARTSYS; |
| 2211 | if (!sony_spun_up) |
| 2212 | scd_spinup(); |
| 2213 | |
| 2214 | /* Set the drive to do raw operations. */ |
| 2215 | params[0] = SONY_SD_DECODE_PARAM; |
| 2216 | params[1] = 0x06 | sony_raw_data_mode; |
| 2217 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 2218 | params, 2, res_reg, &res_size); |
| 2219 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2220 | printk(KERN_ERR PFX "Unable to set decode params: 0x%2.2x\n", |
| 2221 | res_reg[1]); |
| 2222 | retval = -EIO; |
| 2223 | goto out_up; |
| 2224 | } |
| 2225 | |
| 2226 | /* From here down, we have to goto exit_read_audio instead of returning |
| 2227 | because the drive parameters have to be set back to data before |
| 2228 | return. */ |
| 2229 | |
| 2230 | retval = 0; |
| 2231 | if (start_request(ra->addr.lba, ra->nframes)) { |
| 2232 | retval = -EIO; |
| 2233 | goto exit_read_audio; |
| 2234 | } |
| 2235 | |
| 2236 | /* For every requested frame. */ |
| 2237 | cframe = 0; |
| 2238 | while (cframe < ra->nframes) { |
| 2239 | read_audio_data(audio_buffer, res_reg, &res_size); |
| 2240 | if ((res_reg[0] & 0xf0) == 0x20) { |
| 2241 | if (res_reg[1] == SONY_BAD_DATA_ERR) { |
| 2242 | printk(KERN_ERR PFX "Data error on audio " |
| 2243 | "sector %d\n", |
| 2244 | ra->addr.lba + cframe); |
| 2245 | } else if (res_reg[1] == SONY_ILL_TRACK_R_ERR) { |
| 2246 | /* Illegal track type, change track types and start over. */ |
| 2247 | sony_raw_data_mode = |
| 2248 | (sony_raw_data_mode) ? 0 : 1; |
| 2249 | |
| 2250 | /* Set the drive mode. */ |
| 2251 | params[0] = SONY_SD_DECODE_PARAM; |
| 2252 | params[1] = 0x06 | sony_raw_data_mode; |
| 2253 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 2254 | params, |
| 2255 | 2, res_reg, &res_size); |
| 2256 | if ((res_size < 2) |
| 2257 | || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2258 | printk(KERN_ERR PFX "Unable to set " |
| 2259 | "decode params: 0x%2.2x\n", |
| 2260 | res_reg[1]); |
| 2261 | retval = -EIO; |
| 2262 | goto exit_read_audio; |
| 2263 | } |
| 2264 | |
| 2265 | /* Restart the request on the current frame. */ |
| 2266 | if (start_request |
| 2267 | (ra->addr.lba + cframe, |
| 2268 | ra->nframes - cframe)) { |
| 2269 | retval = -EIO; |
| 2270 | goto exit_read_audio; |
| 2271 | } |
| 2272 | |
| 2273 | /* Don't go back to the top because don't want to get into |
| 2274 | and infinite loop. A lot of code gets duplicated, but |
| 2275 | that's no big deal, I don't guess. */ |
| 2276 | read_audio_data(audio_buffer, res_reg, |
| 2277 | &res_size); |
| 2278 | if ((res_reg[0] & 0xf0) == 0x20) { |
| 2279 | if (res_reg[1] == |
| 2280 | SONY_BAD_DATA_ERR) { |
| 2281 | printk(KERN_ERR PFX "Data error" |
| 2282 | " on audio sector %d\n", |
| 2283 | ra->addr.lba + |
| 2284 | cframe); |
| 2285 | } else { |
| 2286 | printk(KERN_ERR PFX "Error reading audio data on sector %d: %s\n", |
| 2287 | ra->addr.lba + cframe, |
| 2288 | translate_error |
| 2289 | (res_reg[1])); |
| 2290 | retval = -EIO; |
| 2291 | goto exit_read_audio; |
| 2292 | } |
| 2293 | } else if (copy_to_user(ra->buf + |
| 2294 | (CD_FRAMESIZE_RAW |
| 2295 | * cframe), |
| 2296 | audio_buffer, |
| 2297 | CD_FRAMESIZE_RAW)) { |
| 2298 | retval = -EFAULT; |
| 2299 | goto exit_read_audio; |
| 2300 | } |
| 2301 | } else { |
| 2302 | printk(KERN_ERR PFX "Error reading audio " |
| 2303 | "data on sector %d: %s\n", |
| 2304 | ra->addr.lba + cframe, |
| 2305 | translate_error(res_reg[1])); |
| 2306 | retval = -EIO; |
| 2307 | goto exit_read_audio; |
| 2308 | } |
| 2309 | } else if (copy_to_user(ra->buf + (CD_FRAMESIZE_RAW * cframe), |
| 2310 | (char *)audio_buffer, |
| 2311 | CD_FRAMESIZE_RAW)) { |
| 2312 | retval = -EFAULT; |
| 2313 | goto exit_read_audio; |
| 2314 | } |
| 2315 | |
| 2316 | cframe++; |
| 2317 | } |
| 2318 | |
| 2319 | get_result(res_reg, &res_size); |
| 2320 | if ((res_reg[0] & 0xf0) == 0x20) { |
| 2321 | printk(KERN_ERR PFX "Error return from audio read: %s\n", |
| 2322 | translate_error(res_reg[1])); |
| 2323 | retval = -EIO; |
| 2324 | goto exit_read_audio; |
| 2325 | } |
| 2326 | |
| 2327 | exit_read_audio: |
| 2328 | |
| 2329 | /* Set the drive mode back to the proper one for the disk. */ |
| 2330 | params[0] = SONY_SD_DECODE_PARAM; |
| 2331 | if (!sony_xa_mode) { |
| 2332 | params[1] = 0x0f; |
| 2333 | } else { |
| 2334 | params[1] = 0x07; |
| 2335 | } |
| 2336 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 2337 | params, 2, res_reg, &res_size); |
| 2338 | if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2339 | printk(KERN_ERR PFX "Unable to reset decode params: 0x%2.2x\n", |
| 2340 | res_reg[1]); |
| 2341 | retval = -EIO; |
| 2342 | } |
| 2343 | |
| 2344 | out_up: |
| 2345 | up(&sony_sem); |
| 2346 | |
| 2347 | return retval; |
| 2348 | } |
| 2349 | |
| 2350 | static int |
| 2351 | do_sony_cd_cmd_chk(const char *name, |
| 2352 | unsigned char cmd, |
| 2353 | unsigned char *params, |
| 2354 | unsigned int num_params, |
| 2355 | unsigned char *result_buffer, unsigned int *result_size) |
| 2356 | { |
| 2357 | do_sony_cd_cmd(cmd, params, num_params, result_buffer, |
| 2358 | result_size); |
| 2359 | if ((*result_size < 2) || ((result_buffer[0] & 0xf0) == 0x20)) { |
| 2360 | printk(KERN_ERR PFX "Error %s (CDROM%s)\n", |
| 2361 | translate_error(result_buffer[1]), name); |
| 2362 | return -EIO; |
| 2363 | } |
| 2364 | return 0; |
| 2365 | } |
| 2366 | |
| 2367 | /* |
| 2368 | * Uniform cdrom interface function |
| 2369 | * open the tray |
| 2370 | */ |
| 2371 | static int scd_tray_move(struct cdrom_device_info *cdi, int position) |
| 2372 | { |
| 2373 | int retval; |
| 2374 | |
| 2375 | if (down_interruptible(&sony_sem)) |
| 2376 | return -ERESTARTSYS; |
| 2377 | if (position == 1 /* open tray */ ) { |
| 2378 | unsigned char res_reg[12]; |
| 2379 | unsigned int res_size; |
| 2380 | |
| 2381 | do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, |
| 2382 | &res_size); |
| 2383 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, |
| 2384 | &res_size); |
| 2385 | |
| 2386 | sony_audio_status = CDROM_AUDIO_INVALID; |
| 2387 | retval = do_sony_cd_cmd_chk("EJECT", SONY_EJECT_CMD, NULL, 0, |
| 2388 | res_reg, &res_size); |
| 2389 | } else { |
| 2390 | if (0 == scd_spinup()) |
| 2391 | sony_spun_up = 1; |
| 2392 | retval = 0; |
| 2393 | } |
| 2394 | up(&sony_sem); |
| 2395 | return retval; |
| 2396 | } |
| 2397 | |
| 2398 | /* |
| 2399 | * The big ugly ioctl handler. |
| 2400 | */ |
| 2401 | static int scd_audio_ioctl(struct cdrom_device_info *cdi, |
| 2402 | unsigned int cmd, void *arg) |
| 2403 | { |
| 2404 | unsigned char res_reg[12]; |
| 2405 | unsigned int res_size; |
| 2406 | unsigned char params[7]; |
| 2407 | int i, retval; |
| 2408 | |
| 2409 | if (down_interruptible(&sony_sem)) |
| 2410 | return -ERESTARTSYS; |
| 2411 | switch (cmd) { |
| 2412 | case CDROMSTART: /* Spin up the drive */ |
| 2413 | retval = do_sony_cd_cmd_chk("START", SONY_SPIN_UP_CMD, NULL, |
| 2414 | 0, res_reg, &res_size); |
| 2415 | break; |
| 2416 | |
| 2417 | case CDROMSTOP: /* Spin down the drive */ |
| 2418 | do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, |
| 2419 | &res_size); |
| 2420 | |
| 2421 | /* |
| 2422 | * Spin the drive down, ignoring the error if the disk was |
| 2423 | * already not spinning. |
| 2424 | */ |
| 2425 | sony_audio_status = CDROM_AUDIO_NO_STATUS; |
| 2426 | retval = do_sony_cd_cmd_chk("STOP", SONY_SPIN_DOWN_CMD, NULL, |
| 2427 | 0, res_reg, &res_size); |
| 2428 | break; |
| 2429 | |
| 2430 | case CDROMPAUSE: /* Pause the drive */ |
| 2431 | if (do_sony_cd_cmd_chk |
| 2432 | ("PAUSE", SONY_AUDIO_STOP_CMD, NULL, 0, res_reg, |
| 2433 | &res_size)) { |
| 2434 | retval = -EIO; |
| 2435 | break; |
| 2436 | } |
| 2437 | /* Get the current position and save it for resuming */ |
| 2438 | if (read_subcode() < 0) { |
| 2439 | retval = -EIO; |
| 2440 | break; |
| 2441 | } |
| 2442 | cur_pos_msf[0] = last_sony_subcode.abs_msf[0]; |
| 2443 | cur_pos_msf[1] = last_sony_subcode.abs_msf[1]; |
| 2444 | cur_pos_msf[2] = last_sony_subcode.abs_msf[2]; |
| 2445 | sony_audio_status = CDROM_AUDIO_PAUSED; |
| 2446 | retval = 0; |
| 2447 | break; |
| 2448 | |
| 2449 | case CDROMRESUME: /* Start the drive after being paused */ |
| 2450 | if (sony_audio_status != CDROM_AUDIO_PAUSED) { |
| 2451 | retval = -EINVAL; |
| 2452 | break; |
| 2453 | } |
| 2454 | |
| 2455 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, |
| 2456 | &res_size); |
| 2457 | |
| 2458 | /* Start the drive at the saved position. */ |
| 2459 | params[1] = int_to_bcd(cur_pos_msf[0]); |
| 2460 | params[2] = int_to_bcd(cur_pos_msf[1]); |
| 2461 | params[3] = int_to_bcd(cur_pos_msf[2]); |
| 2462 | params[4] = int_to_bcd(final_pos_msf[0]); |
| 2463 | params[5] = int_to_bcd(final_pos_msf[1]); |
| 2464 | params[6] = int_to_bcd(final_pos_msf[2]); |
| 2465 | params[0] = 0x03; |
| 2466 | if (do_sony_cd_cmd_chk |
| 2467 | ("RESUME", SONY_AUDIO_PLAYBACK_CMD, params, 7, res_reg, |
| 2468 | &res_size) < 0) { |
| 2469 | retval = -EIO; |
| 2470 | break; |
| 2471 | } |
| 2472 | sony_audio_status = CDROM_AUDIO_PLAY; |
| 2473 | retval = 0; |
| 2474 | break; |
| 2475 | |
| 2476 | case CDROMPLAYMSF: /* Play starting at the given MSF address. */ |
| 2477 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, |
| 2478 | &res_size); |
| 2479 | |
| 2480 | /* The parameters are given in int, must be converted */ |
| 2481 | for (i = 1; i < 7; i++) { |
| 2482 | params[i] = |
| 2483 | int_to_bcd(((unsigned char *) arg)[i - 1]); |
| 2484 | } |
| 2485 | params[0] = 0x03; |
| 2486 | if (do_sony_cd_cmd_chk |
| 2487 | ("PLAYMSF", SONY_AUDIO_PLAYBACK_CMD, params, 7, |
| 2488 | res_reg, &res_size) < 0) { |
| 2489 | retval = -EIO; |
| 2490 | break; |
| 2491 | } |
| 2492 | |
| 2493 | /* Save the final position for pauses and resumes */ |
| 2494 | final_pos_msf[0] = bcd_to_int(params[4]); |
| 2495 | final_pos_msf[1] = bcd_to_int(params[5]); |
| 2496 | final_pos_msf[2] = bcd_to_int(params[6]); |
| 2497 | sony_audio_status = CDROM_AUDIO_PLAY; |
| 2498 | retval = 0; |
| 2499 | break; |
| 2500 | |
| 2501 | case CDROMREADTOCHDR: /* Read the table of contents header */ |
| 2502 | { |
| 2503 | struct cdrom_tochdr *hdr; |
| 2504 | |
| 2505 | sony_get_toc(); |
| 2506 | if (!sony_toc_read) { |
| 2507 | retval = -EIO; |
| 2508 | break; |
| 2509 | } |
| 2510 | |
| 2511 | hdr = (struct cdrom_tochdr *) arg; |
| 2512 | hdr->cdth_trk0 = sony_toc.first_track_num; |
| 2513 | hdr->cdth_trk1 = sony_toc.last_track_num; |
| 2514 | } |
| 2515 | retval = 0; |
| 2516 | break; |
| 2517 | |
| 2518 | case CDROMREADTOCENTRY: /* Read a given table of contents entry */ |
| 2519 | { |
| 2520 | struct cdrom_tocentry *entry; |
| 2521 | int track_idx; |
| 2522 | unsigned char *msf_val = NULL; |
| 2523 | |
| 2524 | sony_get_toc(); |
| 2525 | if (!sony_toc_read) { |
| 2526 | retval = -EIO; |
| 2527 | break; |
| 2528 | } |
| 2529 | |
| 2530 | entry = (struct cdrom_tocentry *) arg; |
| 2531 | |
| 2532 | track_idx = find_track(entry->cdte_track); |
| 2533 | if (track_idx < 0) { |
| 2534 | retval = -EINVAL; |
| 2535 | break; |
| 2536 | } |
| 2537 | |
| 2538 | entry->cdte_adr = |
| 2539 | sony_toc.tracks[track_idx].address; |
| 2540 | entry->cdte_ctrl = |
| 2541 | sony_toc.tracks[track_idx].control; |
| 2542 | msf_val = |
| 2543 | sony_toc.tracks[track_idx].track_start_msf; |
| 2544 | |
| 2545 | /* Logical buffer address or MSF format requested? */ |
| 2546 | if (entry->cdte_format == CDROM_LBA) { |
| 2547 | entry->cdte_addr.lba = msf_to_log(msf_val); |
| 2548 | } else if (entry->cdte_format == CDROM_MSF) { |
| 2549 | entry->cdte_addr.msf.minute = *msf_val; |
| 2550 | entry->cdte_addr.msf.second = |
| 2551 | *(msf_val + 1); |
| 2552 | entry->cdte_addr.msf.frame = |
| 2553 | *(msf_val + 2); |
| 2554 | } |
| 2555 | } |
| 2556 | retval = 0; |
| 2557 | break; |
| 2558 | |
| 2559 | case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */ |
| 2560 | { |
| 2561 | struct cdrom_ti *ti = (struct cdrom_ti *) arg; |
| 2562 | int track_idx; |
| 2563 | |
| 2564 | sony_get_toc(); |
| 2565 | if (!sony_toc_read) { |
| 2566 | retval = -EIO; |
| 2567 | break; |
| 2568 | } |
| 2569 | |
| 2570 | if ((ti->cdti_trk0 < sony_toc.first_track_num) |
| 2571 | || (ti->cdti_trk0 > sony_toc.last_track_num) |
| 2572 | || (ti->cdti_trk1 < ti->cdti_trk0)) { |
| 2573 | retval = -EINVAL; |
| 2574 | break; |
| 2575 | } |
| 2576 | |
| 2577 | track_idx = find_track(ti->cdti_trk0); |
| 2578 | if (track_idx < 0) { |
| 2579 | retval = -EINVAL; |
| 2580 | break; |
| 2581 | } |
| 2582 | params[1] = |
| 2583 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2584 | track_start_msf[0]); |
| 2585 | params[2] = |
| 2586 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2587 | track_start_msf[1]); |
| 2588 | params[3] = |
| 2589 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2590 | track_start_msf[2]); |
| 2591 | |
| 2592 | /* |
| 2593 | * If we want to stop after the last track, use the lead-out |
| 2594 | * MSF to do that. |
| 2595 | */ |
| 2596 | if (ti->cdti_trk1 >= sony_toc.last_track_num) { |
| 2597 | track_idx = find_track(CDROM_LEADOUT); |
| 2598 | } else { |
| 2599 | track_idx = find_track(ti->cdti_trk1 + 1); |
| 2600 | } |
| 2601 | if (track_idx < 0) { |
| 2602 | retval = -EINVAL; |
| 2603 | break; |
| 2604 | } |
| 2605 | params[4] = |
| 2606 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2607 | track_start_msf[0]); |
| 2608 | params[5] = |
| 2609 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2610 | track_start_msf[1]); |
| 2611 | params[6] = |
| 2612 | int_to_bcd(sony_toc.tracks[track_idx]. |
| 2613 | track_start_msf[2]); |
| 2614 | params[0] = 0x03; |
| 2615 | |
| 2616 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, |
| 2617 | &res_size); |
| 2618 | |
| 2619 | do_sony_cd_cmd(SONY_AUDIO_PLAYBACK_CMD, params, 7, |
| 2620 | res_reg, &res_size); |
| 2621 | |
| 2622 | if ((res_size < 2) |
| 2623 | || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2624 | printk(KERN_ERR PFX |
| 2625 | "Params: %x %x %x %x %x %x %x\n", |
| 2626 | params[0], params[1], params[2], |
| 2627 | params[3], params[4], params[5], |
| 2628 | params[6]); |
| 2629 | printk(KERN_ERR PFX |
| 2630 | "Error %s (CDROMPLAYTRKIND)\n", |
| 2631 | translate_error(res_reg[1])); |
| 2632 | retval = -EIO; |
| 2633 | break; |
| 2634 | } |
| 2635 | |
| 2636 | /* Save the final position for pauses and resumes */ |
| 2637 | final_pos_msf[0] = bcd_to_int(params[4]); |
| 2638 | final_pos_msf[1] = bcd_to_int(params[5]); |
| 2639 | final_pos_msf[2] = bcd_to_int(params[6]); |
| 2640 | sony_audio_status = CDROM_AUDIO_PLAY; |
| 2641 | retval = 0; |
| 2642 | break; |
| 2643 | } |
| 2644 | |
| 2645 | case CDROMVOLCTRL: /* Volume control. What volume does this change, anyway? */ |
| 2646 | { |
| 2647 | struct cdrom_volctrl *volctrl = |
| 2648 | (struct cdrom_volctrl *) arg; |
| 2649 | |
| 2650 | params[0] = SONY_SD_AUDIO_VOLUME; |
| 2651 | params[1] = volctrl->channel0; |
| 2652 | params[2] = volctrl->channel1; |
| 2653 | retval = do_sony_cd_cmd_chk("VOLCTRL", |
| 2654 | SONY_SET_DRIVE_PARAM_CMD, |
| 2655 | params, 3, res_reg, |
| 2656 | &res_size); |
| 2657 | break; |
| 2658 | } |
| 2659 | case CDROMSUBCHNL: /* Get subchannel info */ |
| 2660 | retval = sony_get_subchnl_info((struct cdrom_subchnl *) arg); |
| 2661 | break; |
| 2662 | |
| 2663 | default: |
| 2664 | retval = -EINVAL; |
| 2665 | break; |
| 2666 | } |
| 2667 | up(&sony_sem); |
| 2668 | return retval; |
| 2669 | } |
| 2670 | |
| 2671 | static int scd_dev_ioctl(struct cdrom_device_info *cdi, |
| 2672 | unsigned int cmd, unsigned long arg) |
| 2673 | { |
| 2674 | void __user *argp = (void __user *)arg; |
| 2675 | int retval; |
| 2676 | |
| 2677 | if (down_interruptible(&sony_sem)) |
| 2678 | return -ERESTARTSYS; |
| 2679 | switch (cmd) { |
| 2680 | case CDROMREADAUDIO: /* Read 2352 byte audio tracks and 2340 byte |
| 2681 | raw data tracks. */ |
| 2682 | { |
| 2683 | struct cdrom_read_audio ra; |
| 2684 | |
| 2685 | |
| 2686 | sony_get_toc(); |
| 2687 | if (!sony_toc_read) { |
| 2688 | retval = -EIO; |
| 2689 | break; |
| 2690 | } |
| 2691 | |
| 2692 | if (copy_from_user(&ra, argp, sizeof(ra))) { |
| 2693 | retval = -EFAULT; |
| 2694 | break; |
| 2695 | } |
| 2696 | |
| 2697 | if (ra.nframes == 0) { |
| 2698 | retval = 0; |
| 2699 | break; |
| 2700 | } |
| 2701 | |
| 2702 | if (!access_ok(VERIFY_WRITE, ra.buf, |
| 2703 | CD_FRAMESIZE_RAW * ra.nframes)) |
| 2704 | return -EFAULT; |
| 2705 | |
| 2706 | if (ra.addr_format == CDROM_LBA) { |
| 2707 | if ((ra.addr.lba >= |
| 2708 | sony_toc.lead_out_start_lba) |
| 2709 | || (ra.addr.lba + ra.nframes >= |
| 2710 | sony_toc.lead_out_start_lba)) { |
| 2711 | retval = -EINVAL; |
| 2712 | break; |
| 2713 | } |
| 2714 | } else if (ra.addr_format == CDROM_MSF) { |
| 2715 | if ((ra.addr.msf.minute >= 75) |
| 2716 | || (ra.addr.msf.second >= 60) |
| 2717 | || (ra.addr.msf.frame >= 75)) { |
| 2718 | retval = -EINVAL; |
| 2719 | break; |
| 2720 | } |
| 2721 | |
| 2722 | ra.addr.lba = ((ra.addr.msf.minute * 4500) |
| 2723 | + (ra.addr.msf.second * 75) |
| 2724 | + ra.addr.msf.frame); |
| 2725 | if ((ra.addr.lba >= |
| 2726 | sony_toc.lead_out_start_lba) |
| 2727 | || (ra.addr.lba + ra.nframes >= |
| 2728 | sony_toc.lead_out_start_lba)) { |
| 2729 | retval = -EINVAL; |
| 2730 | break; |
| 2731 | } |
| 2732 | |
| 2733 | /* I know, this can go negative on an unsigned. However, |
| 2734 | the first thing done to the data is to add this value, |
| 2735 | so this should compensate and allow direct msf access. */ |
| 2736 | ra.addr.lba -= LOG_START_OFFSET; |
| 2737 | } else { |
| 2738 | retval = -EINVAL; |
| 2739 | break; |
| 2740 | } |
| 2741 | |
| 2742 | retval = read_audio(&ra); |
| 2743 | break; |
| 2744 | } |
| 2745 | retval = 0; |
| 2746 | break; |
| 2747 | |
| 2748 | default: |
| 2749 | retval = -EINVAL; |
| 2750 | } |
| 2751 | up(&sony_sem); |
| 2752 | return retval; |
| 2753 | } |
| 2754 | |
| 2755 | static int scd_spinup(void) |
| 2756 | { |
| 2757 | unsigned char res_reg[12]; |
| 2758 | unsigned int res_size; |
| 2759 | int num_spin_ups; |
| 2760 | |
| 2761 | num_spin_ups = 0; |
| 2762 | |
| 2763 | respinup_on_open: |
| 2764 | do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size); |
| 2765 | |
| 2766 | /* The drive sometimes returns error 0. I don't know why, but ignore |
| 2767 | it. It seems to mean the drive has already done the operation. */ |
| 2768 | if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) { |
| 2769 | printk(KERN_ERR PFX "%s error (scd_open, spin up)\n", |
| 2770 | translate_error(res_reg[1])); |
| 2771 | return 1; |
| 2772 | } |
| 2773 | |
| 2774 | do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, &res_size); |
| 2775 | |
| 2776 | /* The drive sometimes returns error 0. I don't know why, but ignore |
| 2777 | it. It seems to mean the drive has already done the operation. */ |
| 2778 | if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) { |
| 2779 | /* If the drive is already playing, it's ok. */ |
| 2780 | if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR) |
| 2781 | || (res_reg[1] == 0)) { |
| 2782 | return 0; |
| 2783 | } |
| 2784 | |
| 2785 | /* If the drive says it is not spun up (even though we just did it!) |
| 2786 | then retry the operation at least a few times. */ |
| 2787 | if ((res_reg[1] == SONY_NOT_SPIN_ERR) |
| 2788 | && (num_spin_ups < MAX_CDU31A_RETRIES)) { |
| 2789 | num_spin_ups++; |
| 2790 | goto respinup_on_open; |
| 2791 | } |
| 2792 | |
| 2793 | printk(KERN_ERR PFX "Error %s (scd_open, read toc)\n", |
| 2794 | translate_error(res_reg[1])); |
| 2795 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, |
| 2796 | &res_size); |
| 2797 | return 1; |
| 2798 | } |
| 2799 | return 0; |
| 2800 | } |
| 2801 | |
| 2802 | /* |
| 2803 | * Open the drive for operations. Spin the drive up and read the table of |
| 2804 | * contents if these have not already been done. |
| 2805 | */ |
| 2806 | static int scd_open(struct cdrom_device_info *cdi, int purpose) |
| 2807 | { |
| 2808 | unsigned char res_reg[12]; |
| 2809 | unsigned int res_size; |
| 2810 | unsigned char params[2]; |
| 2811 | |
| 2812 | if (purpose == 1) { |
| 2813 | /* Open for IOCTLs only - no media check */ |
| 2814 | sony_usage++; |
| 2815 | return 0; |
| 2816 | } |
| 2817 | |
| 2818 | if (sony_usage == 0) { |
| 2819 | if (scd_spinup() != 0) |
| 2820 | return -EIO; |
| 2821 | sony_get_toc(); |
| 2822 | if (!sony_toc_read) { |
| 2823 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, |
| 2824 | res_reg, &res_size); |
| 2825 | return -EIO; |
| 2826 | } |
| 2827 | |
| 2828 | /* For XA on the CDU31A only, we have to do special reads. |
| 2829 | The CDU33A handles XA automagically. */ |
| 2830 | /* if ( (sony_toc.disk_type == SONY_XA_DISK_TYPE) */ |
| 2831 | if ((sony_toc.disk_type != 0x00) |
| 2832 | && (!is_double_speed)) { |
| 2833 | params[0] = SONY_SD_DECODE_PARAM; |
| 2834 | params[1] = 0x07; |
| 2835 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 2836 | params, 2, res_reg, &res_size); |
| 2837 | if ((res_size < 2) |
| 2838 | || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2839 | printk(KERN_WARNING PFX "Unable to set " |
| 2840 | "XA params: 0x%2.2x\n", res_reg[1]); |
| 2841 | } |
| 2842 | sony_xa_mode = 1; |
| 2843 | } |
| 2844 | /* A non-XA disk. Set the parms back if necessary. */ |
| 2845 | else if (sony_xa_mode) { |
| 2846 | params[0] = SONY_SD_DECODE_PARAM; |
| 2847 | params[1] = 0x0f; |
| 2848 | do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD, |
| 2849 | params, 2, res_reg, &res_size); |
| 2850 | if ((res_size < 2) |
| 2851 | || ((res_reg[0] & 0xf0) == 0x20)) { |
| 2852 | printk(KERN_WARNING PFX "Unable to reset " |
| 2853 | "XA params: 0x%2.2x\n", res_reg[1]); |
| 2854 | } |
| 2855 | sony_xa_mode = 0; |
| 2856 | } |
| 2857 | |
| 2858 | sony_spun_up = 1; |
| 2859 | } |
| 2860 | |
| 2861 | sony_usage++; |
| 2862 | |
| 2863 | return 0; |
| 2864 | } |
| 2865 | |
| 2866 | |
| 2867 | /* |
| 2868 | * Close the drive. Spin it down if no task is using it. The spin |
| 2869 | * down will fail if playing audio, so audio play is OK. |
| 2870 | */ |
| 2871 | static void scd_release(struct cdrom_device_info *cdi) |
| 2872 | { |
| 2873 | if (sony_usage == 1) { |
| 2874 | unsigned char res_reg[12]; |
| 2875 | unsigned int res_size; |
| 2876 | |
| 2877 | do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg, |
| 2878 | &res_size); |
| 2879 | |
| 2880 | sony_spun_up = 0; |
| 2881 | } |
| 2882 | sony_usage--; |
| 2883 | } |
| 2884 | |
| 2885 | static struct cdrom_device_ops scd_dops = { |
| 2886 | .open = scd_open, |
| 2887 | .release = scd_release, |
| 2888 | .drive_status = scd_drive_status, |
| 2889 | .media_changed = scd_media_changed, |
| 2890 | .tray_move = scd_tray_move, |
| 2891 | .lock_door = scd_lock_door, |
| 2892 | .select_speed = scd_select_speed, |
| 2893 | .get_last_session = scd_get_last_session, |
| 2894 | .get_mcn = scd_get_mcn, |
| 2895 | .reset = scd_reset, |
| 2896 | .audio_ioctl = scd_audio_ioctl, |
| 2897 | .dev_ioctl = scd_dev_ioctl, |
| 2898 | .capability = CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK | |
| 2899 | CDC_SELECT_SPEED | CDC_MULTI_SESSION | |
| 2900 | CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO | |
| 2901 | CDC_RESET | CDC_IOCTLS | CDC_DRIVE_STATUS, |
| 2902 | .n_minors = 1, |
| 2903 | }; |
| 2904 | |
| 2905 | static struct cdrom_device_info scd_info = { |
| 2906 | .ops = &scd_dops, |
| 2907 | .speed = 2, |
| 2908 | .capacity = 1, |
| 2909 | .name = "cdu31a" |
| 2910 | }; |
| 2911 | |
| 2912 | static int scd_block_open(struct inode *inode, struct file *file) |
| 2913 | { |
| 2914 | return cdrom_open(&scd_info, inode, file); |
| 2915 | } |
| 2916 | |
| 2917 | static int scd_block_release(struct inode *inode, struct file *file) |
| 2918 | { |
| 2919 | return cdrom_release(&scd_info, file); |
| 2920 | } |
| 2921 | |
| 2922 | static int scd_block_ioctl(struct inode *inode, struct file *file, |
| 2923 | unsigned cmd, unsigned long arg) |
| 2924 | { |
| 2925 | int retval; |
| 2926 | |
| 2927 | /* The eject and close commands should be handled by Uniform CD-ROM |
| 2928 | * driver - but I always got hard lockup instead of eject |
| 2929 | * until I put this here. |
| 2930 | */ |
| 2931 | switch (cmd) { |
| 2932 | case CDROMEJECT: |
| 2933 | scd_lock_door(&scd_info, 0); |
| 2934 | retval = scd_tray_move(&scd_info, 1); |
| 2935 | break; |
| 2936 | case CDROMCLOSETRAY: |
| 2937 | retval = scd_tray_move(&scd_info, 0); |
| 2938 | break; |
| 2939 | default: |
| 2940 | retval = cdrom_ioctl(file, &scd_info, inode, cmd, arg); |
| 2941 | } |
| 2942 | return retval; |
| 2943 | } |
| 2944 | |
| 2945 | static int scd_block_media_changed(struct gendisk *disk) |
| 2946 | { |
| 2947 | return cdrom_media_changed(&scd_info); |
| 2948 | } |
| 2949 | |
Adrian Bunk | 75c96f8 | 2005-05-05 16:16:09 -0700 | [diff] [blame] | 2950 | static struct block_device_operations scd_bdops = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2951 | { |
| 2952 | .owner = THIS_MODULE, |
| 2953 | .open = scd_block_open, |
| 2954 | .release = scd_block_release, |
| 2955 | .ioctl = scd_block_ioctl, |
| 2956 | .media_changed = scd_block_media_changed, |
| 2957 | }; |
| 2958 | |
| 2959 | static struct gendisk *scd_gendisk; |
| 2960 | |
| 2961 | /* The different types of disc loading mechanisms supported */ |
| 2962 | static char *load_mech[] __initdata = |
| 2963 | { "caddy", "tray", "pop-up", "unknown" }; |
| 2964 | |
| 2965 | static int __init |
| 2966 | get_drive_configuration(unsigned short base_io, |
| 2967 | unsigned char res_reg[], unsigned int *res_size) |
| 2968 | { |
| 2969 | unsigned long retry_count; |
| 2970 | |
| 2971 | |
| 2972 | if (!request_region(base_io, 4, "cdu31a")) |
| 2973 | return 0; |
| 2974 | |
| 2975 | /* Set the base address */ |
| 2976 | cdu31a_port = base_io; |
| 2977 | |
| 2978 | /* Set up all the register locations */ |
| 2979 | sony_cd_cmd_reg = cdu31a_port + SONY_CMD_REG_OFFSET; |
| 2980 | sony_cd_param_reg = cdu31a_port + SONY_PARAM_REG_OFFSET; |
| 2981 | sony_cd_write_reg = cdu31a_port + SONY_WRITE_REG_OFFSET; |
| 2982 | sony_cd_control_reg = cdu31a_port + SONY_CONTROL_REG_OFFSET; |
| 2983 | sony_cd_status_reg = cdu31a_port + SONY_STATUS_REG_OFFSET; |
| 2984 | sony_cd_result_reg = cdu31a_port + SONY_RESULT_REG_OFFSET; |
| 2985 | sony_cd_read_reg = cdu31a_port + SONY_READ_REG_OFFSET; |
| 2986 | sony_cd_fifost_reg = cdu31a_port + SONY_FIFOST_REG_OFFSET; |
| 2987 | |
| 2988 | /* |
| 2989 | * Check to see if anything exists at the status register location. |
| 2990 | * I don't know if this is a good way to check, but it seems to work |
| 2991 | * ok for me. |
| 2992 | */ |
| 2993 | if (read_status_register() != 0xff) { |
| 2994 | /* |
| 2995 | * Reset the drive and wait for attention from it (to say it's reset). |
| 2996 | * If you don't wait, the next operation will probably fail. |
| 2997 | */ |
| 2998 | reset_drive(); |
| 2999 | retry_count = jiffies + SONY_RESET_TIMEOUT; |
| 3000 | while (time_before(jiffies, retry_count) |
| 3001 | && (!is_attention())) { |
| 3002 | sony_sleep(); |
| 3003 | } |
| 3004 | |
| 3005 | #if 0 |
| 3006 | /* If attention is never seen probably not a CDU31a present */ |
| 3007 | if (!is_attention()) { |
| 3008 | res_reg[0] = 0x20; |
| 3009 | goto out_err; |
| 3010 | } |
| 3011 | #endif |
| 3012 | |
| 3013 | /* |
| 3014 | * Get the drive configuration. |
| 3015 | */ |
| 3016 | do_sony_cd_cmd(SONY_REQ_DRIVE_CONFIG_CMD, |
| 3017 | NULL, |
| 3018 | 0, (unsigned char *) res_reg, res_size); |
| 3019 | if (*res_size <= 2 || (res_reg[0] & 0xf0) != 0) |
| 3020 | goto out_err; |
| 3021 | return 1; |
| 3022 | } |
| 3023 | |
| 3024 | /* Return an error */ |
| 3025 | res_reg[0] = 0x20; |
| 3026 | out_err: |
| 3027 | release_region(cdu31a_port, 4); |
| 3028 | cdu31a_port = 0; |
| 3029 | return 0; |
| 3030 | } |
| 3031 | |
| 3032 | #ifndef MODULE |
| 3033 | /* |
| 3034 | * Set up base I/O and interrupts, called from main.c. |
| 3035 | */ |
| 3036 | |
| 3037 | static int __init cdu31a_setup(char *strings) |
| 3038 | { |
| 3039 | int ints[4]; |
| 3040 | |
| 3041 | (void) get_options(strings, ARRAY_SIZE(ints), ints); |
| 3042 | |
| 3043 | if (ints[0] > 0) { |
| 3044 | cdu31a_port = ints[1]; |
| 3045 | } |
| 3046 | if (ints[0] > 1) { |
| 3047 | cdu31a_irq = ints[2]; |
| 3048 | } |
| 3049 | if ((strings != NULL) && (*strings != '\0')) { |
| 3050 | if (strcmp(strings, "PAS") == 0) { |
| 3051 | sony_pas_init = 1; |
| 3052 | } else { |
| 3053 | printk(KERN_NOTICE PFX "Unknown interface type: %s\n", |
| 3054 | strings); |
| 3055 | } |
| 3056 | } |
| 3057 | |
| 3058 | return 1; |
| 3059 | } |
| 3060 | |
| 3061 | __setup("cdu31a=", cdu31a_setup); |
| 3062 | |
| 3063 | #endif |
| 3064 | |
| 3065 | /* |
| 3066 | * Initialize the driver. |
| 3067 | */ |
| 3068 | int __init cdu31a_init(void) |
| 3069 | { |
| 3070 | struct s_sony_drive_config drive_config; |
| 3071 | struct gendisk *disk; |
| 3072 | int deficiency = 0; |
| 3073 | unsigned int res_size; |
| 3074 | char msg[255]; |
| 3075 | char buf[40]; |
| 3076 | int i; |
| 3077 | int tmp_irq; |
| 3078 | |
| 3079 | /* |
| 3080 | * According to Alex Freed (freed@europa.orion.adobe.com), this is |
| 3081 | * required for the Fusion CD-16 package. If the sound driver is |
| 3082 | * loaded, it should work fine, but just in case... |
| 3083 | * |
| 3084 | * The following turn on the CD-ROM interface for a Fusion CD-16. |
| 3085 | */ |
| 3086 | if (sony_pas_init) { |
| 3087 | outb(0xbc, 0x9a01); |
| 3088 | outb(0xe2, 0x9a01); |
| 3089 | } |
| 3090 | |
| 3091 | /* Setting the base I/O address to 0xffff will disable it. */ |
| 3092 | if (cdu31a_port == 0xffff) |
| 3093 | goto errout3; |
| 3094 | |
| 3095 | if (cdu31a_port != 0) { |
| 3096 | /* Need IRQ 0 because we can't sleep here. */ |
| 3097 | tmp_irq = cdu31a_irq; |
| 3098 | cdu31a_irq = 0; |
| 3099 | if (!get_drive_configuration(cdu31a_port, |
| 3100 | drive_config.exec_status, |
| 3101 | &res_size)) |
| 3102 | goto errout3; |
| 3103 | cdu31a_irq = tmp_irq; |
| 3104 | } else { |
| 3105 | cdu31a_irq = 0; |
| 3106 | for (i = 0; cdu31a_addresses[i].base; i++) { |
| 3107 | if (get_drive_configuration(cdu31a_addresses[i].base, |
| 3108 | drive_config.exec_status, |
| 3109 | &res_size)) { |
| 3110 | cdu31a_irq = cdu31a_addresses[i].int_num; |
| 3111 | break; |
| 3112 | } |
| 3113 | } |
| 3114 | if (!cdu31a_port) |
| 3115 | goto errout3; |
| 3116 | } |
| 3117 | |
| 3118 | if (register_blkdev(MAJOR_NR, "cdu31a")) |
| 3119 | goto errout2; |
| 3120 | |
| 3121 | disk = alloc_disk(1); |
| 3122 | if (!disk) |
| 3123 | goto errout1; |
| 3124 | disk->major = MAJOR_NR; |
| 3125 | disk->first_minor = 0; |
| 3126 | sprintf(disk->disk_name, "cdu31a"); |
| 3127 | disk->fops = &scd_bdops; |
| 3128 | disk->flags = GENHD_FL_CD; |
| 3129 | |
| 3130 | if (SONY_HWC_DOUBLE_SPEED(drive_config)) |
| 3131 | is_double_speed = 1; |
| 3132 | |
| 3133 | tmp_irq = cdu31a_irq; /* Need IRQ 0 because we can't sleep here. */ |
| 3134 | cdu31a_irq = 0; |
| 3135 | |
| 3136 | sony_speed = is_double_speed; /* Set 2X drives to 2X by default */ |
| 3137 | set_drive_params(sony_speed); |
| 3138 | |
| 3139 | cdu31a_irq = tmp_irq; |
| 3140 | |
| 3141 | if (cdu31a_irq > 0) { |
| 3142 | if (request_irq |
| 3143 | (cdu31a_irq, cdu31a_interrupt, SA_INTERRUPT, |
| 3144 | "cdu31a", NULL)) { |
| 3145 | printk(KERN_WARNING PFX "Unable to grab IRQ%d for " |
| 3146 | "the CDU31A driver\n", cdu31a_irq); |
| 3147 | cdu31a_irq = 0; |
| 3148 | } |
| 3149 | } |
| 3150 | |
| 3151 | sprintf(msg, "Sony I/F CDROM : %8.8s %16.16s %8.8s\n", |
| 3152 | drive_config.vendor_id, |
| 3153 | drive_config.product_id, |
| 3154 | drive_config.product_rev_level); |
| 3155 | sprintf(buf, " Capabilities: %s", |
| 3156 | load_mech[SONY_HWC_GET_LOAD_MECH(drive_config)]); |
| 3157 | strcat(msg, buf); |
| 3158 | if (SONY_HWC_AUDIO_PLAYBACK(drive_config)) |
| 3159 | strcat(msg, ", audio"); |
| 3160 | else |
| 3161 | deficiency |= CDC_PLAY_AUDIO; |
| 3162 | if (SONY_HWC_EJECT(drive_config)) |
| 3163 | strcat(msg, ", eject"); |
| 3164 | else |
| 3165 | deficiency |= CDC_OPEN_TRAY; |
| 3166 | if (SONY_HWC_LED_SUPPORT(drive_config)) |
| 3167 | strcat(msg, ", LED"); |
| 3168 | if (SONY_HWC_ELECTRIC_VOLUME(drive_config)) |
| 3169 | strcat(msg, ", elec. Vol"); |
| 3170 | if (SONY_HWC_ELECTRIC_VOLUME_CTL(drive_config)) |
| 3171 | strcat(msg, ", sep. Vol"); |
| 3172 | if (is_double_speed) |
| 3173 | strcat(msg, ", double speed"); |
| 3174 | else |
| 3175 | deficiency |= CDC_SELECT_SPEED; |
| 3176 | if (cdu31a_irq > 0) { |
| 3177 | sprintf(buf, ", irq %d", cdu31a_irq); |
| 3178 | strcat(msg, buf); |
| 3179 | } |
| 3180 | strcat(msg, "\n"); |
| 3181 | printk(KERN_INFO PFX "%s",msg); |
| 3182 | |
| 3183 | cdu31a_queue = blk_init_queue(do_cdu31a_request, &cdu31a_lock); |
| 3184 | if (!cdu31a_queue) |
| 3185 | goto errout0; |
| 3186 | blk_queue_hardsect_size(cdu31a_queue, 2048); |
| 3187 | |
| 3188 | init_timer(&cdu31a_abort_timer); |
| 3189 | cdu31a_abort_timer.function = handle_abort_timeout; |
| 3190 | |
| 3191 | scd_info.mask = deficiency; |
| 3192 | scd_gendisk = disk; |
| 3193 | if (register_cdrom(&scd_info)) |
| 3194 | goto err; |
| 3195 | disk->queue = cdu31a_queue; |
| 3196 | add_disk(disk); |
| 3197 | |
| 3198 | disk_changed = 1; |
| 3199 | return 0; |
| 3200 | |
| 3201 | err: |
| 3202 | blk_cleanup_queue(cdu31a_queue); |
| 3203 | errout0: |
| 3204 | if (cdu31a_irq) |
| 3205 | free_irq(cdu31a_irq, NULL); |
| 3206 | printk(KERN_ERR PFX "Unable to register with Uniform cdrom driver\n"); |
| 3207 | put_disk(disk); |
| 3208 | errout1: |
| 3209 | if (unregister_blkdev(MAJOR_NR, "cdu31a")) { |
| 3210 | printk(KERN_WARNING PFX "Can't unregister block device\n"); |
| 3211 | } |
| 3212 | errout2: |
| 3213 | release_region(cdu31a_port, 4); |
| 3214 | errout3: |
| 3215 | return -EIO; |
| 3216 | } |
| 3217 | |
| 3218 | |
Adrian Bunk | 75c96f8 | 2005-05-05 16:16:09 -0700 | [diff] [blame] | 3219 | static void __exit cdu31a_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3220 | { |
| 3221 | del_gendisk(scd_gendisk); |
| 3222 | put_disk(scd_gendisk); |
| 3223 | if (unregister_cdrom(&scd_info)) { |
| 3224 | printk(KERN_WARNING PFX "Can't unregister from Uniform " |
| 3225 | "cdrom driver\n"); |
| 3226 | return; |
| 3227 | } |
| 3228 | if ((unregister_blkdev(MAJOR_NR, "cdu31a") == -EINVAL)) { |
| 3229 | printk(KERN_WARNING PFX "Can't unregister\n"); |
| 3230 | return; |
| 3231 | } |
| 3232 | |
| 3233 | blk_cleanup_queue(cdu31a_queue); |
| 3234 | |
| 3235 | if (cdu31a_irq > 0) |
| 3236 | free_irq(cdu31a_irq, NULL); |
| 3237 | |
| 3238 | release_region(cdu31a_port, 4); |
| 3239 | printk(KERN_INFO PFX "module released.\n"); |
| 3240 | } |
| 3241 | |
| 3242 | #ifdef MODULE |
| 3243 | module_init(cdu31a_init); |
| 3244 | #endif |
| 3245 | module_exit(cdu31a_exit); |
| 3246 | |
| 3247 | MODULE_LICENSE("GPL"); |
| 3248 | MODULE_ALIAS_BLOCKDEV_MAJOR(CDU31A_CDROM_MAJOR); |