2 * Sony CDU-31A CDROM interface device driver.
4 * Corey Minyard (minyard@wf-rch.cirr.com)
8 * See Documentation/cdrom/cdu31a for additional details about this driver.
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.
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:
21 * append="cdu31a=0x1f88,0,PAS"
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.
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
34 * retry_count = jiffies+ SONY_JIFFIES_TIMEOUT;
35 * while (time_before(jiffies, retry_count) && (! <some condition to wait for))
37 * while (handle_sony_cd_attention())
42 * if (the condition not met)
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.
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.
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.
62 * DRIVER SPECIAL FEATURES
63 * -----------------------
65 * This section describes features beyond the normal audio and CD-ROM
66 * functions of the drive.
68 * 2048 byte buffer mode
70 * If a disk is mounted with -o block=2048, data is copied straight
71 * from the drive data port to the buffer. Otherwise, the readahead
72 * buffer must be involved to hold the other 1K of data when a 1K
73 * block operation is done. Note that with 2048 byte blocks you
74 * cannot execute files from the CD.
78 * The driver should support XA disks for both the CDU31A and CDU33A.
79 * It does this transparently, the using program doesn't need to set it.
83 * A multi-session disk looks just like a normal disk to the user.
84 * Just mount one normally, and all the data should be there.
85 * A special thanks to Koen for help with this!
89 * Using the CDROMREADAUDIO it is possible to read raw audio and data
90 * tracks. Both operations return 2352 bytes per sector. On the data
91 * tracks, the first 12 bytes is not returned by the drive and the value
92 * of that data is indeterminate.
95 * Copyright (C) 1993 Corey Minyard
97 * This program is free software; you can redistribute it and/or modify
98 * it under the terms of the GNU General Public License as published by
99 * the Free Software Foundation; either version 2 of the License, or
100 * (at your option) any later version.
102 * This program is distributed in the hope that it will be useful,
103 * but WITHOUT ANY WARRANTY; without even the implied warranty of
104 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
105 * GNU General Public License for more details.
107 * You should have received a copy of the GNU General Public License
108 * along with this program; if not, write to the Free Software
109 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
112 * CDs with form1 and form2 sectors cause problems
113 * with current read-ahead strategy.
116 * Heiko Eissfeldt <heiko@colossus.escape.de>
117 * For finding abug in the return of the track numbers.
118 * TOC processing redone for proper multisession support.
121 * It probably a little late to be adding a history, but I guess I
124 * 10/24/95 - Added support for disabling the eject button when the
125 * drive is open. Note that there is a small problem
126 * still here, if the eject button is pushed while the
127 * drive light is flashing, the drive will return a bad
128 * status and be reset. It recovers, though.
130 * 03/07/97 - Fixed a problem with timers.
133 * 18 Spetember 1997 -- Ported to Uniform CD-ROM driver by
134 * Heiko Eissfeldt <heiko@colossus.escape.de> with additional
135 * changes by Erik Andersen <andersee@debian.org>
137 * 24 January 1998 -- Removed the scd_disc_status() function, which was now
138 * just dead code left over from the port.
139 * Erik Andersen <andersee@debian.org>
141 * 16 July 1998 -- Drive donated to Erik Andersen by John Kodis
142 * <kodis@jagunet.com>. Work begun on fixing driver to
143 * work under 2.1.X. Added temporary extra printks
144 * which seem to slow it down enough to work.
146 * 9 November 1999 -- Make kernel-parameter implementation work with 2.3.x
147 * Removed init_module & cleanup_module in favor of
148 * module_init & module_exit.
149 * Torben Mathiasen <tmm@image.dk>
152 #include <linux/major.h>
154 #include <linux/module.h>
156 #include <linux/errno.h>
157 #include <linux/signal.h>
158 #include <linux/sched.h>
159 #include <linux/timer.h>
160 #include <linux/fs.h>
161 #include <linux/kernel.h>
162 #include <linux/hdreg.h>
163 #include <linux/genhd.h>
164 #include <linux/ioport.h>
165 #include <linux/devfs_fs_kernel.h>
166 #include <linux/string.h>
167 #include <linux/slab.h>
168 #include <linux/init.h>
169 #include <linux/interrupt.h>
171 #include <asm/system.h>
173 #include <asm/uaccess.h>
176 #include <linux/cdrom.h>
179 #define MAJOR_NR CDU31A_CDROM_MAJOR
180 #include <linux/blkdev.h>
182 #define CDU31A_READAHEAD 4 /* 128 sector, 64kB, 32 reads read-ahead */
183 #define CDU31A_MAX_CONSECUTIVE_ATTENTIONS 10
187 /* Define the following if you have data corruption problems. */
188 #undef SONY_POLL_EACH_BYTE
191 ** Edit the following data to change interrupts, DMA channels, etc.
192 ** Default is polled and no DMA. DMA is not recommended for double-speed
196 unsigned short base; /* I/O Base Address */
197 short int_num; /* Interrupt Number (-1 means scan for it,
198 0 means don't use) */
199 } cdu31a_addresses[] __initdata = {
203 static int handle_sony_cd_attention(void);
204 static int read_subcode(void);
205 static void sony_get_toc(void);
206 static int scd_spinup(void);
207 /*static int scd_open(struct inode *inode, struct file *filp);*/
208 static int scd_open(struct cdrom_device_info *, int);
209 static void do_sony_cd_cmd(unsigned char cmd,
210 unsigned char *params,
211 unsigned int num_params,
212 unsigned char *result_buffer,
213 unsigned int *result_size);
214 static void size_to_buf(unsigned int size, unsigned char *buf);
216 /* Parameters for the read-ahead. */
217 static unsigned int sony_next_block; /* Next 512 byte block offset */
218 static unsigned int sony_blocks_left = 0; /* Number of 512 byte blocks left
219 in the current read command. */
222 /* The base I/O address of the Sony Interface. This is a variable (not a
223 #define) so it can be easily changed via some future ioctl() */
224 static unsigned int cdu31a_port = 0;
225 MODULE_PARM(cdu31a_port, "i");
228 * The following are I/O addresses of the various registers for the drive. The
229 * comment for the base address also applies here.
231 static volatile unsigned short sony_cd_cmd_reg;
232 static volatile unsigned short sony_cd_param_reg;
233 static volatile unsigned short sony_cd_write_reg;
234 static volatile unsigned short sony_cd_control_reg;
235 static volatile unsigned short sony_cd_status_reg;
236 static volatile unsigned short sony_cd_result_reg;
237 static volatile unsigned short sony_cd_read_reg;
238 static volatile unsigned short sony_cd_fifost_reg;
240 static struct request_queue *cdu31a_queue;
241 static spinlock_t cdu31a_lock = SPIN_LOCK_UNLOCKED; /* queue lock */
243 static int sony_spun_up = 0; /* Has the drive been spun up? */
245 static int sony_speed = 0; /* Last wanted speed */
247 static int sony_xa_mode = 0; /* Is an XA disk in the drive
248 and the drive a CDU31A? */
250 static int sony_raw_data_mode = 1; /* 1 if data tracks, 0 if audio.
251 For raw data reads. */
253 static unsigned int sony_usage = 0; /* How many processes have the
256 static int sony_pas_init = 0; /* Initialize the Pro-Audio
259 static struct s_sony_session_toc single_toc; /* Holds the
263 static struct s_all_sessions_toc sony_toc; /* entries gathered from all
266 static int sony_toc_read = 0; /* Has the TOC been read for
269 static struct s_sony_subcode last_sony_subcode; /* Points to the last
270 subcode address read */
272 static volatile int sony_inuse = 0; /* Is the drive in use? Only one operation
275 static DECLARE_WAIT_QUEUE_HEAD(sony_wait); /* Things waiting for the drive */
277 static struct task_struct *has_cd_task = NULL; /* The task that is currently
278 using the CDROM drive, or
281 static int is_double_speed = 0; /* does the drive support double speed ? */
282 static int is_a_cdu31a = 1; /* Is the drive a CDU31A? */
284 static int is_auto_eject = 1; /* Door has been locked? 1=No/0=Yes */
287 * The audio status uses the values from read subchannel data as specified
288 * in include/linux/cdrom.h.
290 static volatile int sony_audio_status = CDROM_AUDIO_NO_STATUS;
293 * The following are a hack for pausing and resuming audio play. The drive
294 * does not work as I would expect it, if you stop it then start it again,
295 * the drive seeks back to the beginning and starts over. This holds the
296 * position during a pause so a resume can restart it. It uses the
297 * audio status variable above to tell if it is paused.
299 static unsigned volatile char cur_pos_msf[3] = { 0, 0, 0 };
300 static unsigned volatile char final_pos_msf[3] = { 0, 0, 0 };
302 /* What IRQ is the drive using? 0 if none. */
303 static int cdu31a_irq = 0;
304 MODULE_PARM(cdu31a_irq, "i");
306 /* The interrupt handler will wake this queue up when it gets an
308 DECLARE_WAIT_QUEUE_HEAD(cdu31a_irq_wait);
310 static int curr_control_reg = 0; /* Current value of the control register */
312 /* A disk changed variable. When a disk change is detected, it will
313 all be set to TRUE. As the upper layers ask for disk_changed status
314 it will be cleared. */
315 static char disk_changed;
317 /* Variable for using the readahead buffer. The readahead buffer
318 is used for raw sector reads and for blocksizes that are smaller
320 static char readahead_buffer[CD_FRAMESIZE_RAW];
321 static int readahead_dataleft = 0;
322 static int readahead_bad = 0;
324 /* Used to time a short period to abort an operation after the
325 drive has been idle for a while. This keeps the light on
326 the drive from flashing for very long. */
327 static struct timer_list cdu31a_abort_timer;
329 /* Marks if the timeout has started an abort read. This is used
330 on entry to the drive to tell the code to read out the status
331 from the abort read. */
332 static int abort_read_started = 0;
335 * Uniform cdrom interface function
336 * report back, if disc has changed from time of last request.
338 static int scd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
342 retval = disk_changed;
349 * Uniform cdrom interface function
350 * report back, if drive is ready
352 static int scd_drive_status(struct cdrom_device_info *cdi, int slot_nr)
354 if (CDSL_CURRENT != slot_nr) {
355 /* we have no changer support */
358 if (scd_spinup() == 0) {
361 return sony_spun_up ? CDS_DISC_OK : CDS_DRIVE_NOT_READY;
364 static inline void enable_interrupts(void)
366 curr_control_reg |= (SONY_ATTN_INT_EN_BIT
367 | SONY_RES_RDY_INT_EN_BIT
368 | SONY_DATA_RDY_INT_EN_BIT);
369 outb(curr_control_reg, sony_cd_control_reg);
372 static inline void disable_interrupts(void)
374 curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT
375 | SONY_RES_RDY_INT_EN_BIT
376 | SONY_DATA_RDY_INT_EN_BIT);
377 outb(curr_control_reg, sony_cd_control_reg);
381 * Wait a little while (used for polling the drive). If in initialization,
382 * setting a timeout doesn't work, so just loop for a while.
384 static inline void sony_sleep(void)
388 if (cdu31a_irq <= 0) {
390 } else { /* Interrupt driven */
395 interruptible_sleep_on(&cdu31a_irq_wait);
396 restore_flags(flags);
402 * The following are convenience routine to read various status and set
403 * various conditions in the drive.
405 static inline int is_attention(void)
407 return ((inb(sony_cd_status_reg) & SONY_ATTN_BIT) != 0);
410 static inline int is_busy(void)
412 return ((inb(sony_cd_status_reg) & SONY_BUSY_BIT) != 0);
415 static inline int is_data_ready(void)
417 return ((inb(sony_cd_status_reg) & SONY_DATA_RDY_BIT) != 0);
420 static inline int is_data_requested(void)
422 return ((inb(sony_cd_status_reg) & SONY_DATA_REQUEST_BIT) != 0);
425 static inline int is_result_ready(void)
427 return ((inb(sony_cd_status_reg) & SONY_RES_RDY_BIT) != 0);
430 static inline int is_param_write_rdy(void)
432 return ((inb(sony_cd_fifost_reg) & SONY_PARAM_WRITE_RDY_BIT) != 0);
435 static inline int is_result_reg_not_empty(void)
437 return ((inb(sony_cd_fifost_reg) & SONY_RES_REG_NOT_EMP_BIT) != 0);
440 static inline void reset_drive(void)
442 curr_control_reg = 0;
443 readahead_dataleft = 0;
445 outb(SONY_DRIVE_RESET_BIT, sony_cd_control_reg);
449 * Uniform cdrom interface function
450 * reset drive and return when it is ready
452 static int scd_reset(struct cdrom_device_info *cdi)
454 unsigned long retry_count;
458 retry_count = jiffies + SONY_RESET_TIMEOUT;
459 while (time_before(jiffies, retry_count) && (!is_attention())) {
466 static inline void clear_attention(void)
468 outb(curr_control_reg | SONY_ATTN_CLR_BIT, sony_cd_control_reg);
471 static inline void clear_result_ready(void)
473 outb(curr_control_reg | SONY_RES_RDY_CLR_BIT, sony_cd_control_reg);
476 static inline void clear_data_ready(void)
478 outb(curr_control_reg | SONY_DATA_RDY_CLR_BIT,
479 sony_cd_control_reg);
482 static inline void clear_param_reg(void)
484 outb(curr_control_reg | SONY_PARAM_CLR_BIT, sony_cd_control_reg);
487 static inline unsigned char read_status_register(void)
489 return (inb(sony_cd_status_reg));
492 static inline unsigned char read_result_register(void)
494 return (inb(sony_cd_result_reg));
497 static inline unsigned char read_data_register(void)
499 return (inb(sony_cd_read_reg));
502 static inline void write_param(unsigned char param)
504 outb(param, sony_cd_param_reg);
507 static inline void write_cmd(unsigned char cmd)
509 outb(curr_control_reg | SONY_RES_RDY_INT_EN_BIT,
510 sony_cd_control_reg);
511 outb(cmd, sony_cd_cmd_reg);
514 static irqreturn_t cdu31a_interrupt(int irq, void *dev_id, struct pt_regs *regs)
518 if (abort_read_started) {
519 /* We might be waiting for an abort to finish. Don't
520 disable interrupts yet, though, because we handle
522 /* Clear out the result registers. */
523 while (is_result_reg_not_empty()) {
524 val = read_result_register();
527 clear_result_ready();
529 /* Clear out the data */
530 while (is_data_requested()) {
531 val = read_data_register();
533 abort_read_started = 0;
535 /* If something was waiting, wake it up now. */
536 if (waitqueue_active(&cdu31a_irq_wait)) {
537 disable_interrupts();
538 wake_up(&cdu31a_irq_wait);
540 } else if (waitqueue_active(&cdu31a_irq_wait)) {
541 disable_interrupts();
542 wake_up(&cdu31a_irq_wait);
544 disable_interrupts();
546 ("CDU31A: Got an interrupt but nothing was waiting\n");
552 * give more verbose error messages
554 static unsigned char *translate_error(unsigned char err_code)
556 static unsigned char errbuf[80];
560 return "illegal command ";
562 return "illegal parameter ";
565 return "not loaded ";
569 return "not spinning ";
573 return "spindle servo ";
575 return "focus servo ";
577 return "eject mechanism ";
579 return "audio playing ";
581 return "emergency eject ";
586 return "frame sync ";
588 return "subcode address ";
590 return "block sync ";
592 return "header address ";
595 return "illegal track read ";
597 return "mode 0 read ";
599 return "illegal mode read ";
601 return "illegal block size read ";
607 return "leadout read ";
609 return "buffer overrun ";
612 return "unrecoverable CIRC ";
614 return "unrecoverable LECC ";
619 return "invalid subcode data ";
621 return "focus on TOC read ";
623 return "frame sync on TOC read ";
628 return "hardware failure ";
634 return "data track ";
636 sprintf(errbuf, "unknown 0x%02x ", err_code);
641 * Set the drive parameters so the drive will auto-spin-up when a
644 static void set_drive_params(int want_doublespeed)
646 unsigned char res_reg[12];
647 unsigned int res_size;
648 unsigned char params[3];
651 params[0] = SONY_SD_AUTO_SPIN_DOWN_TIME;
652 params[1] = 0x00; /* Never spin down the drive. */
653 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
654 params, 2, res_reg, &res_size);
655 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
656 printk(" Unable to set spin-down time: 0x%2.2x\n",
660 params[0] = SONY_SD_MECH_CONTROL;
661 params[1] = SONY_AUTO_SPIN_UP_BIT; /* Set auto spin up */
664 params[1] |= SONY_AUTO_EJECT_BIT;
666 if (is_double_speed && want_doublespeed) {
667 params[1] |= SONY_DOUBLE_SPEED_BIT; /* Set the drive to double speed if
670 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
671 params, 2, res_reg, &res_size);
672 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
673 printk(" Unable to set mechanical parameters: 0x%2.2x\n",
679 * Uniform cdrom interface function
680 * select reading speed for data access
682 static int scd_select_speed(struct cdrom_device_info *cdi, int speed)
687 sony_speed = speed - 1;
689 set_drive_params(sony_speed);
694 * Uniform cdrom interface function
695 * lock or unlock eject button
697 static int scd_lock_door(struct cdrom_device_info *cdi, int lock)
699 if (lock == 0 && sony_usage == 1) {
700 /* Unlock the door, only if nobody is using the drive */
705 set_drive_params(sony_speed);
710 * This code will reset the drive and attempt to restore sane parameters.
712 static void restart_on_error(void)
714 unsigned char res_reg[12];
715 unsigned int res_size;
716 unsigned long retry_count;
719 printk("cdu31a: Resetting drive on error\n");
721 retry_count = jiffies + SONY_RESET_TIMEOUT;
722 while (time_before(jiffies, retry_count) && (!is_attention())) {
725 set_drive_params(sony_speed);
726 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
727 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
728 printk("cdu31a: Unable to spin up drive: 0x%2.2x\n",
738 * This routine writes data to the parameter register. Since this should
739 * happen fairly fast, it is polled with no OS waits between.
741 static int write_params(unsigned char *params, int num_params)
743 unsigned int retry_count;
746 retry_count = SONY_READY_RETRIES;
747 while ((retry_count > 0) && (!is_param_write_rdy())) {
750 if (!is_param_write_rdy()) {
754 while (num_params > 0) {
755 write_param(*params);
765 * The following reads data from the command result register. It is a
766 * fairly complex routine, all status info flows back through this
767 * interface. The algorithm is stolen directly from the flowcharts in
771 get_result(unsigned char *result_buffer, unsigned int *result_size)
775 unsigned long retry_count;
778 while (handle_sony_cd_attention());
779 /* Wait for the result data to be ready */
780 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
781 while (time_before(jiffies, retry_count)
782 && (is_busy() || (!(is_result_ready())))) {
785 while (handle_sony_cd_attention());
787 if (is_busy() || (!(is_result_ready()))) {
789 printk("CDU31A timeout out %d\n", __LINE__);
791 result_buffer[0] = 0x20;
792 result_buffer[1] = SONY_TIMEOUT_OP_ERR;
798 * Get the first two bytes. This determines what else needs
801 clear_result_ready();
802 a = read_result_register();
806 /* Check for block error status result. */
807 if ((a & 0xf0) == 0x50) {
812 b = read_result_register();
818 * 0x20 means an error occurred. Byte 2 will have the error code.
819 * Otherwise, the command succeeded, byte 2 will have the count of
820 * how many more status bytes are coming.
822 * The result register can be read 10 bytes at a time, a wait for
823 * result ready to be asserted must be done between every 10 bytes.
825 if ((a & 0xf0) != 0x20) {
827 for (i = 0; i < 8; i++) {
828 *result_buffer = read_result_register();
835 retry_count = SONY_READY_RETRIES;
836 while ((retry_count > 0)
837 && (!is_result_ready())) {
840 if (!is_result_ready()) {
842 printk("CDU31A timeout out %d\n",
845 result_buffer[0] = 0x20;
852 clear_result_ready();
854 for (i = 0; i < 10; i++) {
856 read_result_register();
864 retry_count = SONY_READY_RETRIES;
865 while ((retry_count > 0)
866 && (!is_result_ready())) {
869 if (!is_result_ready()) {
871 printk("CDU31A timeout out %d\n",
874 result_buffer[0] = 0x20;
884 *result_buffer = read_result_register();
893 * Do a command that does not involve data transfer. This routine must
894 * be re-entrant from the same task to support being called from the
895 * data operation code when an error occurs.
898 do_sony_cd_cmd(unsigned char cmd,
899 unsigned char *params,
900 unsigned int num_params,
901 unsigned char *result_buffer, unsigned int *result_size)
903 unsigned long retry_count;
911 if (current != has_cd_task) { /* Allow recursive calls to this routine */
913 interruptible_sleep_on(&sony_wait);
914 if (signal_pending(current)) {
915 result_buffer[0] = 0x20;
916 result_buffer[1] = SONY_SIGNAL_OP_ERR;
918 restore_flags(flags);
923 has_cd_task = current;
932 while (handle_sony_cd_attention());
936 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
937 while (time_before(jiffies, retry_count) && (is_busy())) {
940 while (handle_sony_cd_attention());
944 printk("CDU31A timeout out %d\n", __LINE__);
946 result_buffer[0] = 0x20;
947 result_buffer[1] = SONY_TIMEOUT_OP_ERR;
950 clear_result_ready();
953 write_params(params, num_params);
956 get_result(result_buffer, result_size);
959 if (((result_buffer[0] & 0xf0) == 0x20)
960 && (num_retries < MAX_CDU31A_RETRIES)) {
963 goto retry_cd_operation;
966 if (!recursive_call) {
969 wake_up_interruptible(&sony_wait);
972 restore_flags(flags);
977 * Handle an attention from the drive. This will return 1 if it found one
978 * or 0 if not (if one is found, the caller might want to call again).
980 * This routine counts the number of consecutive times it is called
981 * (since this is always called from a while loop until it returns
982 * a 0), and returns a 0 if it happens too many times. This will help
985 static int handle_sony_cd_attention(void)
987 unsigned char atten_code;
988 static int num_consecutive_attentions = 0;
993 printk("Entering handle_sony_cd_attention\n");
995 if (is_attention()) {
996 if (num_consecutive_attentions >
997 CDU31A_MAX_CONSECUTIVE_ATTENTIONS) {
999 ("cdu31a: Too many consecutive attentions: %d\n",
1000 num_consecutive_attentions);
1001 num_consecutive_attentions = 0;
1003 printk("Leaving handle_sony_cd_attention at %d\n",
1010 atten_code = read_result_register();
1012 switch (atten_code) {
1013 /* Someone changed the CD. Mark it as changed */
1014 case SONY_MECH_LOADED_ATTN:
1017 sony_audio_status = CDROM_AUDIO_NO_STATUS;
1018 sony_blocks_left = 0;
1021 case SONY_SPIN_DOWN_COMPLETE_ATTN:
1022 /* Mark the disk as spun down. */
1026 case SONY_AUDIO_PLAY_DONE_ATTN:
1027 sony_audio_status = CDROM_AUDIO_COMPLETED;
1031 case SONY_EJECT_PUSHED_ATTN:
1032 if (is_auto_eject) {
1033 sony_audio_status = CDROM_AUDIO_INVALID;
1037 case SONY_LEAD_IN_ERR_ATTN:
1038 case SONY_LEAD_OUT_ERR_ATTN:
1039 case SONY_DATA_TRACK_ERR_ATTN:
1040 case SONY_AUDIO_PLAYBACK_ERR_ATTN:
1041 sony_audio_status = CDROM_AUDIO_ERROR;
1045 num_consecutive_attentions++;
1047 printk("Leaving handle_sony_cd_attention at %d\n",
1051 } else if (abort_read_started) {
1052 while (is_result_reg_not_empty()) {
1053 val = read_result_register();
1056 clear_result_ready();
1057 /* Clear out the data */
1058 while (is_data_requested()) {
1059 val = read_data_register();
1061 abort_read_started = 0;
1063 printk("Leaving handle_sony_cd_attention at %d\n",
1069 num_consecutive_attentions = 0;
1071 printk("Leaving handle_sony_cd_attention at %d\n", __LINE__);
1077 /* Convert from an integer 0-99 to BCD */
1078 static inline unsigned int int_to_bcd(unsigned int val)
1083 retval = (val / 10) << 4;
1084 retval = retval | val % 10;
1089 /* Convert from BCD to an integer from 0-99 */
1090 static unsigned int bcd_to_int(unsigned int bcd)
1092 return ((((bcd >> 4) & 0x0f) * 10) + (bcd & 0x0f));
1097 * Convert a logical sector value (like the OS would want to use for
1098 * a block device) to an MSF format.
1100 static void log_to_msf(unsigned int log, unsigned char *msf)
1102 log = log + LOG_START_OFFSET;
1103 msf[0] = int_to_bcd(log / 4500);
1105 msf[1] = int_to_bcd(log / 75);
1106 msf[2] = int_to_bcd(log % 75);
1111 * Convert an MSF format to a logical sector.
1113 static unsigned int msf_to_log(unsigned char *msf)
1120 log += msf[0] * 4500;
1121 log = log - LOG_START_OFFSET;
1128 * Take in integer size value and put it into a buffer like
1129 * the drive would want to see a number-of-sector value.
1131 static void size_to_buf(unsigned int size, unsigned char *buf)
1133 buf[0] = size / 65536;
1134 size = size % 65536;
1135 buf[1] = size / 256;
1136 buf[2] = size % 256;
1139 /* Starts a read operation. Returns 0 on success and 1 on failure.
1140 The read operation used here allows multiple sequential sectors
1141 to be read and status returned for each sector. The driver will
1142 read the output one at a time as the requests come and abort the
1143 operation if the requested sector is not the next one from the
1146 start_request(unsigned int sector, unsigned int nsect, int read_nsect_only)
1148 unsigned char params[6];
1149 unsigned int read_size;
1150 unsigned long retry_count;
1154 printk("Entering start_request\n");
1156 log_to_msf(sector, params);
1157 /* If requested, read exactly what was asked. */
1158 if (read_nsect_only) {
1162 * If the full read-ahead would go beyond the end of the media, trim
1163 * it back to read just till the end of the media.
1165 else if ((sector + nsect) >= sony_toc.lead_out_start_lba) {
1166 read_size = sony_toc.lead_out_start_lba - sector;
1168 /* Read the full readahead amount. */
1170 read_size = CDU31A_READAHEAD / 4;
1172 size_to_buf(read_size, ¶ms[3]);
1175 * Clear any outstanding attentions and wait for the drive to
1176 * complete any pending operations.
1178 while (handle_sony_cd_attention());
1180 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1181 while (time_before(jiffies, retry_count) && (is_busy())) {
1184 while (handle_sony_cd_attention());
1188 printk("CDU31A: Timeout while waiting to issue command\n");
1190 printk("Leaving start_request at %d\n", __LINE__);
1194 /* Issue the command */
1195 clear_result_ready();
1198 write_params(params, 6);
1199 write_cmd(SONY_READ_BLKERR_STAT_CMD);
1201 sony_blocks_left = read_size * 4;
1202 sony_next_block = sector * 4;
1203 readahead_dataleft = 0;
1206 printk("Leaving start_request at %d\n", __LINE__);
1211 printk("Leaving start_request at %d\n", __LINE__);
1215 /* Abort a pending read operation. Clear all the drive status and
1216 readahead variables. */
1217 static void abort_read(void)
1219 unsigned char result_reg[2];
1224 do_sony_cd_cmd(SONY_ABORT_CMD, NULL, 0, result_reg, &result_size);
1225 if ((result_reg[0] & 0xf0) == 0x20) {
1226 printk("CDU31A: Error aborting read, %s error\n",
1227 translate_error(result_reg[1]));
1230 while (is_result_reg_not_empty()) {
1231 val = read_result_register();
1234 clear_result_ready();
1235 /* Clear out the data */
1236 while (is_data_requested()) {
1237 val = read_data_register();
1240 sony_blocks_left = 0;
1241 readahead_dataleft = 0;
1245 /* Called when the timer times out. This will abort the
1246 pending read operation. */
1247 static void handle_abort_timeout(unsigned long data)
1249 unsigned long flags;
1252 printk("Entering handle_abort_timeout\n");
1256 /* If it is in use, ignore it. */
1258 /* We can't use abort_read(), because it will sleep
1259 or schedule in the timer interrupt. Just start
1260 the operation, finish it on the next access to
1262 clear_result_ready();
1264 write_cmd(SONY_ABORT_CMD);
1266 sony_blocks_left = 0;
1267 readahead_dataleft = 0;
1269 abort_read_started = 1;
1271 restore_flags(flags);
1273 printk("Leaving handle_abort_timeout\n");
1277 /* Actually get data and status from the drive. */
1279 input_data(char *buffer,
1280 unsigned int bytesleft,
1281 unsigned int nblocks, unsigned int offset, unsigned int skip)
1284 volatile unsigned char val;
1288 printk("Entering input_data\n");
1290 /* If an XA disk on a CDU31A, skip the first 12 bytes of data from
1291 the disk. The real data is after that. */
1293 for (i = 0; i < CD_XA_HEAD; i++) {
1294 val = read_data_register();
1300 if (bytesleft == 2048) { /* 2048 byte direct buffer transfer */
1301 insb(sony_cd_read_reg, buffer, 2048);
1302 readahead_dataleft = 0;
1304 /* If the input read did not align with the beginning of the block,
1305 skip the necessary bytes. */
1307 insb(sony_cd_read_reg, readahead_buffer, skip);
1310 /* Get the data into the buffer. */
1311 insb(sony_cd_read_reg, &buffer[offset], bytesleft);
1313 /* Get the rest of the data into the readahead buffer at the
1315 readahead_dataleft = (2048 - skip) - bytesleft;
1316 insb(sony_cd_read_reg,
1317 readahead_buffer + bytesleft, readahead_dataleft);
1319 sony_blocks_left -= nblocks;
1320 sony_next_block += nblocks;
1322 /* If an XA disk, we have to clear out the rest of the unused
1323 error correction data. */
1325 for (i = 0; i < CD_XA_TAIL; i++) {
1326 val = read_data_register();
1330 printk("Leaving input_data at %d\n", __LINE__);
1334 /* read data from the drive. Note the nsect must be <= 4. */
1336 read_data_block(char *buffer,
1338 unsigned int nblocks,
1339 unsigned char res_reg[], int *res_size)
1341 unsigned long retry_count;
1342 unsigned int bytesleft;
1343 unsigned int offset;
1348 printk("Entering read_data_block\n");
1354 bytesleft = nblocks * 512;
1357 /* If the data in the read-ahead does not match the block offset,
1358 then fix things up. */
1359 if (((block % 4) * 512) != ((2048 - readahead_dataleft) % 2048)) {
1360 sony_next_block += block % 4;
1361 sony_blocks_left -= block % 4;
1362 skip = (block % 4) * 512;
1367 /* We have readahead data in the buffer, get that first before we
1368 decide if a read is necessary. */
1369 if (readahead_dataleft != 0) {
1370 if (bytesleft > readahead_dataleft) {
1371 /* The readahead will not fill the requested buffer, but
1372 get the data out of the readahead into the buffer. */
1374 readahead_buffer + (2048 -
1375 readahead_dataleft),
1376 readahead_dataleft);
1377 bytesleft -= readahead_dataleft;
1378 offset += readahead_dataleft;
1379 readahead_dataleft = 0;
1381 /* The readahead will fill the whole buffer, get the data
1384 readahead_buffer + (2048 -
1385 readahead_dataleft),
1387 readahead_dataleft -= bytesleft;
1389 sony_blocks_left -= nblocks;
1390 sony_next_block += nblocks;
1392 /* If the data in the readahead is bad, return an error so the
1393 driver will abort the buffer. */
1394 if (readahead_bad) {
1396 res_reg[1] = SONY_BAD_DATA_ERR;
1400 if (readahead_dataleft == 0) {
1404 /* Final transfer is done for read command, get final result. */
1405 if (sony_blocks_left == 0) {
1406 get_result(res_reg, res_size);
1409 printk("Leaving read_data_block at %d\n",
1416 /* Wait for the drive to tell us we have something */
1417 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1418 while (time_before(jiffies, retry_count) && !(is_data_ready())) {
1419 while (handle_sony_cd_attention());
1423 if (!(is_data_ready())) {
1424 if (is_result_ready()) {
1425 get_result(res_reg, res_size);
1426 if ((res_reg[0] & 0xf0) != 0x20) {
1428 ("CDU31A: Got result that should have been error: %d\n",
1431 res_reg[1] = SONY_BAD_DATA_ERR;
1437 printk("CDU31A timeout out %d\n", __LINE__);
1440 res_reg[1] = SONY_TIMEOUT_OP_ERR;
1445 input_data(buffer, bytesleft, nblocks, offset, skip);
1447 /* Wait for the status from the drive. */
1448 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1449 while (time_before(jiffies, retry_count)
1450 && !(is_result_ready())) {
1451 while (handle_sony_cd_attention());
1456 if (!is_result_ready()) {
1458 printk("CDU31A timeout out %d\n", __LINE__);
1461 res_reg[1] = SONY_TIMEOUT_OP_ERR;
1465 get_result(res_reg, res_size);
1467 /* If we got a buffer status, handle that. */
1468 if ((res_reg[0] & 0xf0) == 0x50) {
1471 SONY_NO_CIRC_ERR_BLK_STAT)
1473 SONY_NO_LECC_ERR_BLK_STAT)
1475 SONY_RECOV_LECC_ERR_BLK_STAT)) {
1476 /* The data was successful, but if data was read from
1477 the readahead and it was bad, set the whole
1479 if (readahead_bad) {
1488 ("CDU31A: Data block error: 0x%x\n",
1491 res_reg[1] = SONY_BAD_DATA_ERR;
1494 /* Data is in the readahead buffer but an error was returned.
1495 Make sure future requests don't use the data. */
1496 if (bytesleft != 2048) {
1501 /* Final transfer is done for read command, get final result. */
1502 if (sony_blocks_left == 0) {
1503 get_result(res_reg, res_size);
1505 } else if ((res_reg[0] & 0xf0) != 0x20) {
1506 /* The drive gave me bad status, I don't know what to do.
1507 Reset the driver and return an error. */
1509 ("CDU31A: Invalid block status: 0x%x\n",
1513 res_reg[1] = SONY_BAD_DATA_ERR;
1519 printk("Leaving read_data_block at %d\n", __LINE__);
1525 * The OS calls this to perform a read or write operation to the drive.
1526 * Write obviously fail. Reads to a read ahead of sony_buffer_size
1527 * bytes to help speed operations. This especially helps since the OS
1528 * uses 1024 byte blocks and the drive uses 2048 byte blocks. Since most
1529 * data access on a CD is done sequentially, this saves a lot of operations.
1531 static void do_cdu31a_request(request_queue_t * q)
1533 struct request *req;
1536 unsigned char res_reg[12];
1537 unsigned int res_size;
1539 unsigned long flags;
1543 printk("Entering do_cdu31a_request\n");
1547 * Make sure no one else is using the driver; wait for them
1548 * to finish if it is so.
1552 while (sony_inuse) {
1553 interruptible_sleep_on(&sony_wait);
1554 if (signal_pending(current)) {
1555 restore_flags(flags);
1557 printk("Leaving do_cdu31a_request at %d\n",
1564 has_cd_task = current;
1566 /* Get drive status before doing anything. */
1567 while (handle_sony_cd_attention());
1569 /* Make sure we have a valid TOC. */
1573 * jens: driver has lots of races
1575 spin_unlock_irq(q->queue_lock);
1577 /* Make sure the timer is cancelled. */
1578 del_timer(&cdu31a_abort_timer);
1582 * The beginning here is stolen from the hard disk driver. I hope
1585 req = elv_next_request(q);
1587 goto end_do_cdu31a_request;
1592 block = req->sector;
1593 nblock = req->nr_sectors;
1595 if (!sony_toc_read) {
1596 printk("CDU31A: TOC not read\n");
1597 end_request(req, 0);
1602 if (!(req->flags & REQ_CMD))
1604 if (rq_data_dir(req) == WRITE) {
1605 end_request(req, 0);
1608 if (rq_data_dir(req) != READ)
1609 panic("CDU31A: Unknown cmd");
1611 * If the block address is invalid or the request goes beyond the end of
1612 * the media, return an error.
1614 if ((block / 4) >= sony_toc.lead_out_start_lba) {
1615 printk("CDU31A: Request past end of media\n");
1616 end_request(req, 0);
1619 if (((block + nblock) / 4) >= sony_toc.lead_out_start_lba) {
1620 printk("CDU31A: Request past end of media\n");
1621 end_request(req, 0);
1628 while (handle_sony_cd_attention());
1630 if (!sony_toc_read) {
1631 printk("CDU31A: TOC not read\n");
1632 end_request(req, 0);
1636 /* If no data is left to be read from the drive, start the
1638 if (sony_blocks_left == 0) {
1639 if (start_request(block / 4, CDU31A_READAHEAD / 4, 0)) {
1640 end_request(req, 0);
1644 /* If the requested block is not the next one waiting in
1645 the driver, abort the current operation and start a
1647 else if (block != sony_next_block) {
1649 printk("CDU31A Warning: Read for block %d, expected %d\n",
1650 block, sony_next_block);
1653 if (!sony_toc_read) {
1654 printk("CDU31A: TOC not read\n");
1655 end_request(req, 0);
1658 if (start_request(block / 4, CDU31A_READAHEAD / 4, 0)) {
1659 printk("CDU31a: start request failed\n");
1660 end_request(req, 0);
1665 read_data_block(req->buffer, block, nblock, res_reg, &res_size);
1667 if (res_reg[0] != 0x20) {
1668 end_request(req, 1);
1672 if (num_retries > MAX_CDU31A_RETRIES) {
1673 end_request(req, 0);
1678 if (res_reg[1] == SONY_NOT_SPIN_ERR) {
1679 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
1682 printk("CDU31A: %s error for block %d, nblock %d\n",
1683 translate_error(res_reg[1]), block, nblock);
1685 goto try_read_again;
1687 end_do_cdu31a_request:
1688 spin_lock_irq(q->queue_lock);
1690 /* After finished, cancel any pending operations. */
1693 /* Start a timer to time out after a while to disable
1695 cdu31a_abort_timer.expires = jiffies + 2 * HZ; /* Wait 2 seconds */
1696 add_timer(&cdu31a_abort_timer);
1701 wake_up_interruptible(&sony_wait);
1702 restore_flags(flags);
1704 printk("Leaving do_cdu31a_request at %d\n", __LINE__);
1710 * Read the table of contents from the drive and set up TOC if
1713 static void sony_get_toc(void)
1715 unsigned char res_reg[2];
1716 unsigned int res_size;
1717 unsigned char parms[1];
1720 int totaltracks = 0;
1725 printk("Entering sony_get_toc\n");
1729 if (!sony_toc_read) {
1731 /* Ignore the result, since it might error if spinning already. */
1732 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
1735 do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg,
1738 /* The drive sometimes returns error 0. I don't know why, but ignore
1739 it. It seems to mean the drive has already done the operation. */
1741 || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
1742 /* If the drive is already playing, it's ok. */
1743 if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
1744 || (res_reg[1] == 0)) {
1745 goto gettoc_drive_spinning;
1748 /* If the drive says it is not spun up (even though we just did it!)
1749 then retry the operation at least a few times. */
1750 if ((res_reg[1] == SONY_NOT_SPIN_ERR)
1751 && (num_spin_ups < MAX_CDU31A_RETRIES)) {
1753 goto respinup_on_gettoc;
1756 printk("cdu31a: Error reading TOC: %x %s\n",
1757 res_reg[0], translate_error(res_reg[1]));
1761 gettoc_drive_spinning:
1763 /* The idea here is we keep asking for sessions until the command
1764 fails. Then we know what the last valid session on the disk is.
1765 No need to check session 0, since session 0 is the same as session
1766 1; the command returns different information if you give it 0.
1769 memset(&sony_toc, 0x0e, sizeof(sony_toc));
1770 memset(&single_toc, 0x0f, sizeof(single_toc));
1774 /* This seems to slow things down enough to make it work. This
1775 * appears to be a problem in do_sony_cd_cmd. This printk seems
1776 * to address the symptoms... -Erik */
1778 printk("cdu31a: Trying session %d\n", session);
1781 do_sony_cd_cmd(SONY_READ_TOC_SPEC_CMD,
1782 parms, 1, res_reg, &res_size);
1785 printk("%2.2x %2.2x\n", res_reg[0], res_reg[1]);
1789 || ((res_reg[0] & 0xf0) == 0x20)) {
1790 /* An error reading the TOC, this must be past the last session. */
1793 ("Yikes! Couldn't read any sessions!");
1797 printk("Reading session %d\n", session);
1801 do_sony_cd_cmd(SONY_REQ_TOC_DATA_SPEC_CMD,
1804 (unsigned char *) &single_toc,
1807 || ((single_toc.exec_status[0] & 0xf0) ==
1810 ("cdu31a: Error reading session %d: %x %s\n",
1811 session, single_toc.exec_status[0],
1812 translate_error(single_toc.
1814 /* An error reading the TOC. Return without sony_toc_read
1820 ("add0 %01x, con0 %01x, poi0 %02x, 1st trk %d, dsktyp %x, dum0 %x\n",
1821 single_toc.address0, single_toc.control0,
1823 bcd_to_int(single_toc.first_track_num),
1824 single_toc.disk_type, single_toc.dummy0);
1826 ("add1 %01x, con1 %01x, poi1 %02x, lst trk %d, dummy1 %x, dum2 %x\n",
1827 single_toc.address1, single_toc.control1,
1829 bcd_to_int(single_toc.last_track_num),
1830 single_toc.dummy1, single_toc.dummy2);
1832 ("add2 %01x, con2 %01x, poi2 %02x leadout start min %d, sec %d, frame %d\n",
1833 single_toc.address2, single_toc.control2,
1835 bcd_to_int(single_toc.lead_out_start_msf[0]),
1836 bcd_to_int(single_toc.lead_out_start_msf[1]),
1837 bcd_to_int(single_toc.lead_out_start_msf[2]));
1838 if (res_size > 18 && single_toc.pointb0 > 0xaf)
1840 ("addb0 %01x, conb0 %01x, poib0 %02x, nextsession min %d, sec %d, frame %d\n"
1841 "#mode5_ptrs %02d, max_start_outer_leadout_msf min %d, sec %d, frame %d\n",
1842 single_toc.addressb0,
1843 single_toc.controlb0,
1845 bcd_to_int(single_toc.
1846 next_poss_prog_area_msf
1848 bcd_to_int(single_toc.
1849 next_poss_prog_area_msf
1851 bcd_to_int(single_toc.
1852 next_poss_prog_area_msf
1854 single_toc.num_mode_5_pointers,
1855 bcd_to_int(single_toc.
1856 max_start_outer_leadout_msf
1858 bcd_to_int(single_toc.
1859 max_start_outer_leadout_msf
1861 bcd_to_int(single_toc.
1862 max_start_outer_leadout_msf
1864 if (res_size > 27 && single_toc.pointb1 > 0xaf)
1866 ("addb1 %01x, conb1 %01x, poib1 %02x, %x %x %x %x #skipint_ptrs %d, #skiptrkassign %d %x\n",
1867 single_toc.addressb1,
1868 single_toc.controlb1,
1870 single_toc.dummyb0_1[0],
1871 single_toc.dummyb0_1[1],
1872 single_toc.dummyb0_1[2],
1873 single_toc.dummyb0_1[3],
1874 single_toc.num_skip_interval_pointers,
1875 single_toc.num_skip_track_assignments,
1876 single_toc.dummyb0_2);
1877 if (res_size > 36 && single_toc.pointb2 > 0xaf)
1879 ("addb2 %01x, conb2 %01x, poib2 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1880 single_toc.addressb2,
1881 single_toc.controlb2,
1883 single_toc.tracksb2[0],
1884 single_toc.tracksb2[1],
1885 single_toc.tracksb2[2],
1886 single_toc.tracksb2[3],
1887 single_toc.tracksb2[4],
1888 single_toc.tracksb2[5],
1889 single_toc.tracksb2[6]);
1890 if (res_size > 45 && single_toc.pointb3 > 0xaf)
1892 ("addb3 %01x, conb3 %01x, poib3 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1893 single_toc.addressb3,
1894 single_toc.controlb3,
1896 single_toc.tracksb3[0],
1897 single_toc.tracksb3[1],
1898 single_toc.tracksb3[2],
1899 single_toc.tracksb3[3],
1900 single_toc.tracksb3[4],
1901 single_toc.tracksb3[5],
1902 single_toc.tracksb3[6]);
1903 if (res_size > 54 && single_toc.pointb4 > 0xaf)
1905 ("addb4 %01x, conb4 %01x, poib4 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1906 single_toc.addressb4,
1907 single_toc.controlb4,
1909 single_toc.tracksb4[0],
1910 single_toc.tracksb4[1],
1911 single_toc.tracksb4[2],
1912 single_toc.tracksb4[3],
1913 single_toc.tracksb4[4],
1914 single_toc.tracksb4[5],
1915 single_toc.tracksb4[6]);
1916 if (res_size > 63 && single_toc.pointc0 > 0xaf)
1918 ("addc0 %01x, conc0 %01x, poic0 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1919 single_toc.addressc0,
1920 single_toc.controlc0,
1922 single_toc.dummyc0[0],
1923 single_toc.dummyc0[1],
1924 single_toc.dummyc0[2],
1925 single_toc.dummyc0[3],
1926 single_toc.dummyc0[4],
1927 single_toc.dummyc0[5],
1928 single_toc.dummyc0[6]);
1933 sony_toc.lead_out_start_msf[0] =
1934 bcd_to_int(single_toc.lead_out_start_msf[0]);
1935 sony_toc.lead_out_start_msf[1] =
1936 bcd_to_int(single_toc.lead_out_start_msf[1]);
1937 sony_toc.lead_out_start_msf[2] =
1938 bcd_to_int(single_toc.lead_out_start_msf[2]);
1939 sony_toc.lead_out_start_lba =
1940 single_toc.lead_out_start_lba =
1941 msf_to_log(sony_toc.lead_out_start_msf);
1943 /* For points that do not exist, move the data over them
1944 to the right location. */
1945 if (single_toc.pointb0 != 0xb0) {
1946 memmove(((char *) &single_toc) + 27,
1947 ((char *) &single_toc) + 18,
1950 } else if (res_size > 18) {
1951 sony_toc.lead_out_start_msf[0] =
1952 bcd_to_int(single_toc.
1953 max_start_outer_leadout_msf
1955 sony_toc.lead_out_start_msf[1] =
1956 bcd_to_int(single_toc.
1957 max_start_outer_leadout_msf
1959 sony_toc.lead_out_start_msf[2] =
1960 bcd_to_int(single_toc.
1961 max_start_outer_leadout_msf
1963 sony_toc.lead_out_start_lba =
1964 msf_to_log(sony_toc.
1965 lead_out_start_msf);
1967 if (single_toc.pointb1 != 0xb1) {
1968 memmove(((char *) &single_toc) + 36,
1969 ((char *) &single_toc) + 27,
1973 if (single_toc.pointb2 != 0xb2) {
1974 memmove(((char *) &single_toc) + 45,
1975 ((char *) &single_toc) + 36,
1979 if (single_toc.pointb3 != 0xb3) {
1980 memmove(((char *) &single_toc) + 54,
1981 ((char *) &single_toc) + 45,
1985 if (single_toc.pointb4 != 0xb4) {
1986 memmove(((char *) &single_toc) + 63,
1987 ((char *) &single_toc) + 54,
1991 if (single_toc.pointc0 != 0xc0) {
1992 memmove(((char *) &single_toc) + 72,
1993 ((char *) &single_toc) + 63,
1999 ("start track lba %u, leadout start lba %u\n",
2000 single_toc.start_track_lba,
2001 single_toc.lead_out_start_lba);
2007 bcd_to_int(single_toc.last_track_num)
2009 bcd_to_int(single_toc.
2010 first_track_num); i++) {
2012 ("trk %02d: add 0x%01x, con 0x%01x, track %02d, start min %02d, sec %02d, frame %02d\n",
2014 single_toc.tracks[i].address,
2015 single_toc.tracks[i].control,
2016 bcd_to_int(single_toc.
2018 bcd_to_int(single_toc.
2022 bcd_to_int(single_toc.
2026 bcd_to_int(single_toc.
2031 bcd_to_int(single_toc.
2034 bcd_to_int(single_toc.
2038 bcd_to_int(single_toc.
2041 bcd_to_int(single_toc.
2046 ("min track number %d, max track number %d\n",
2051 /* prepare a special table of contents for a CD-I disc. They don't have one. */
2052 if (single_toc.disk_type == 0x10 &&
2053 single_toc.first_track_num == 2 &&
2054 single_toc.last_track_num == 2 /* CD-I */ ) {
2055 sony_toc.tracks[totaltracks].address = 1;
2056 sony_toc.tracks[totaltracks].control = 4; /* force data tracks */
2057 sony_toc.tracks[totaltracks].track = 1;
2058 sony_toc.tracks[totaltracks].
2059 track_start_msf[0] = 0;
2060 sony_toc.tracks[totaltracks].
2061 track_start_msf[1] = 2;
2062 sony_toc.tracks[totaltracks].
2063 track_start_msf[2] = 0;
2067 /* gather track entries from this session */
2073 bcd_to_int(single_toc.last_track_num)
2075 bcd_to_int(single_toc.
2077 i++, totaltracks++) {
2078 sony_toc.tracks[totaltracks].
2080 single_toc.tracks[i].address;
2081 sony_toc.tracks[totaltracks].
2083 single_toc.tracks[i].control;
2084 sony_toc.tracks[totaltracks].
2086 bcd_to_int(single_toc.
2088 sony_toc.tracks[totaltracks].
2089 track_start_msf[0] =
2090 bcd_to_int(single_toc.
2092 track_start_msf[0]);
2093 sony_toc.tracks[totaltracks].
2094 track_start_msf[1] =
2095 bcd_to_int(single_toc.
2097 track_start_msf[1]);
2098 sony_toc.tracks[totaltracks].
2099 track_start_msf[2] =
2100 bcd_to_int(single_toc.
2102 track_start_msf[2]);
2106 msf_to_log(sony_toc.
2111 sony_toc.tracks[totaltracks].
2115 tracks[totaltracks].
2118 sony_toc.tracks[totaltracks].
2122 tracks[totaltracks].
2126 sony_toc.first_track_num = mint;
2127 sony_toc.last_track_num = maxt;
2128 /* Disk type of last session wins. For example:
2129 CD-Extra has disk type 0 for the first session, so
2130 a dumb HiFi CD player thinks it is a plain audio CD.
2131 We are interested in the disk type of the last session,
2132 which is 0x20 (XA) for CD-Extra, so we can access the
2134 sony_toc.disk_type = single_toc.disk_type;
2135 sony_toc.sessions = session;
2137 /* don't believe everything :-) */
2139 single_toc.start_track_lba = 0;
2140 sony_toc.start_track_lba =
2141 single_toc.start_track_lba;
2143 if (session > 1 && single_toc.pointb0 == 0xb0 &&
2144 sony_toc.lead_out_start_lba ==
2145 single_toc.lead_out_start_lba) {
2149 /* Let's not get carried away... */
2151 printk("cdu31a: too many sessions: %d\n",
2157 sony_toc.track_entries = totaltracks;
2158 /* add one entry for the LAST track with track number CDROM_LEADOUT */
2159 sony_toc.tracks[totaltracks].address = single_toc.address2;
2160 sony_toc.tracks[totaltracks].control = single_toc.control2;
2161 sony_toc.tracks[totaltracks].track = CDROM_LEADOUT;
2162 sony_toc.tracks[totaltracks].track_start_msf[0] =
2163 sony_toc.lead_out_start_msf[0];
2164 sony_toc.tracks[totaltracks].track_start_msf[1] =
2165 sony_toc.lead_out_start_msf[1];
2166 sony_toc.tracks[totaltracks].track_start_msf[2] =
2167 sony_toc.lead_out_start_msf[2];
2173 ("Disk session %d, start track: %d, stop track: %d\n",
2174 session, single_toc.start_track_lba,
2175 single_toc.lead_out_start_lba);
2179 printk("Leaving sony_get_toc\n");
2185 * Uniform cdrom interface function
2186 * return multisession offset and sector information
2188 static int scd_get_last_session(struct cdrom_device_info *cdi,
2189 struct cdrom_multisession *ms_info)
2191 if (ms_info == NULL)
2197 ms_info->addr_format = CDROM_LBA;
2198 ms_info->addr.lba = sony_toc.start_track_lba;
2199 ms_info->xa_flag = sony_toc.disk_type == SONY_XA_DISK_TYPE ||
2200 sony_toc.disk_type == 0x10 /* CDI */ ;
2206 * Search for a specific track in the table of contents.
2208 static int find_track(int track)
2212 for (i = 0; i <= sony_toc.track_entries; i++) {
2213 if (sony_toc.tracks[i].track == track) {
2223 * Read the subcode and put it in last_sony_subcode for future use.
2225 static int read_subcode(void)
2227 unsigned int res_size;
2230 do_sony_cd_cmd(SONY_REQ_SUBCODE_ADDRESS_CMD,
2232 0, (unsigned char *) &last_sony_subcode, &res_size);
2234 || ((last_sony_subcode.exec_status[0] & 0xf0) == 0x20)) {
2235 printk("Sony CDROM error %s (read_subcode)\n",
2236 translate_error(last_sony_subcode.exec_status[1]));
2240 last_sony_subcode.track_num =
2241 bcd_to_int(last_sony_subcode.track_num);
2242 last_sony_subcode.index_num =
2243 bcd_to_int(last_sony_subcode.index_num);
2244 last_sony_subcode.abs_msf[0] =
2245 bcd_to_int(last_sony_subcode.abs_msf[0]);
2246 last_sony_subcode.abs_msf[1] =
2247 bcd_to_int(last_sony_subcode.abs_msf[1]);
2248 last_sony_subcode.abs_msf[2] =
2249 bcd_to_int(last_sony_subcode.abs_msf[2]);
2251 last_sony_subcode.rel_msf[0] =
2252 bcd_to_int(last_sony_subcode.rel_msf[0]);
2253 last_sony_subcode.rel_msf[1] =
2254 bcd_to_int(last_sony_subcode.rel_msf[1]);
2255 last_sony_subcode.rel_msf[2] =
2256 bcd_to_int(last_sony_subcode.rel_msf[2]);
2261 * Uniform cdrom interface function
2262 * return the media catalog number found on some older audio cds
2265 scd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
2267 unsigned char resbuffer[2 + 14];
2268 unsigned char *mcnp = mcn->medium_catalog_number;
2269 unsigned char *resp = resbuffer + 3;
2270 unsigned int res_size;
2272 memset(mcn->medium_catalog_number, 0, 14);
2273 do_sony_cd_cmd(SONY_REQ_UPC_EAN_CMD,
2274 NULL, 0, resbuffer, &res_size);
2275 if ((res_size < 2) || ((resbuffer[0] & 0xf0) == 0x20));
2277 /* packed bcd to single ASCII digits */
2278 *mcnp++ = (*resp >> 4) + '0';
2279 *mcnp++ = (*resp++ & 0x0f) + '0';
2280 *mcnp++ = (*resp >> 4) + '0';
2281 *mcnp++ = (*resp++ & 0x0f) + '0';
2282 *mcnp++ = (*resp >> 4) + '0';
2283 *mcnp++ = (*resp++ & 0x0f) + '0';
2284 *mcnp++ = (*resp >> 4) + '0';
2285 *mcnp++ = (*resp++ & 0x0f) + '0';
2286 *mcnp++ = (*resp >> 4) + '0';
2287 *mcnp++ = (*resp++ & 0x0f) + '0';
2288 *mcnp++ = (*resp >> 4) + '0';
2289 *mcnp++ = (*resp++ & 0x0f) + '0';
2290 *mcnp++ = (*resp >> 4) + '0';
2298 * Get the subchannel info like the CDROMSUBCHNL command wants to see it. If
2299 * the drive is playing, the subchannel needs to be read (since it would be
2300 * changing). If the drive is paused or completed, the subcode information has
2301 * already been stored, just use that. The ioctl call wants things in decimal
2302 * (not BCD), so all the conversions are done.
2304 static int sony_get_subchnl_info(struct cdrom_subchnl *schi)
2306 /* Get attention stuff */
2307 while (handle_sony_cd_attention());
2310 if (!sony_toc_read) {
2314 switch (sony_audio_status) {
2315 case CDROM_AUDIO_NO_STATUS:
2316 case CDROM_AUDIO_PLAY:
2317 if (read_subcode() < 0) {
2322 case CDROM_AUDIO_PAUSED:
2323 case CDROM_AUDIO_COMPLETED:
2327 case CDROM_AUDIO_NO_STATUS:
2328 schi->cdsc_audiostatus = sony_audio_status;
2332 case CDROM_AUDIO_INVALID:
2333 case CDROM_AUDIO_ERROR:
2338 schi->cdsc_audiostatus = sony_audio_status;
2339 schi->cdsc_adr = last_sony_subcode.address;
2340 schi->cdsc_ctrl = last_sony_subcode.control;
2341 schi->cdsc_trk = last_sony_subcode.track_num;
2342 schi->cdsc_ind = last_sony_subcode.index_num;
2343 if (schi->cdsc_format == CDROM_MSF) {
2344 schi->cdsc_absaddr.msf.minute =
2345 last_sony_subcode.abs_msf[0];
2346 schi->cdsc_absaddr.msf.second =
2347 last_sony_subcode.abs_msf[1];
2348 schi->cdsc_absaddr.msf.frame =
2349 last_sony_subcode.abs_msf[2];
2351 schi->cdsc_reladdr.msf.minute =
2352 last_sony_subcode.rel_msf[0];
2353 schi->cdsc_reladdr.msf.second =
2354 last_sony_subcode.rel_msf[1];
2355 schi->cdsc_reladdr.msf.frame =
2356 last_sony_subcode.rel_msf[2];
2357 } else if (schi->cdsc_format == CDROM_LBA) {
2358 schi->cdsc_absaddr.lba =
2359 msf_to_log(last_sony_subcode.abs_msf);
2360 schi->cdsc_reladdr.lba =
2361 msf_to_log(last_sony_subcode.rel_msf);
2367 /* Get audio data from the drive. This is fairly complex because I
2368 am looking for status and data at the same time, but if I get status
2369 then I just look for data. I need to get the status immediately so
2370 the switch from audio to data tracks will happen quickly. */
2372 read_audio_data(char *buffer, unsigned char res_reg[], int *res_size)
2374 unsigned long retry_count;
2383 /* Wait for the drive to tell us we have something */
2384 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
2385 continue_read_audio_wait:
2386 while (time_before(jiffies, retry_count) && !(is_data_ready())
2387 && !(is_result_ready() || result_read)) {
2388 while (handle_sony_cd_attention());
2392 if (!(is_data_ready())) {
2393 if (is_result_ready() && !result_read) {
2394 get_result(res_reg, res_size);
2396 /* Read block status and continue waiting for data. */
2397 if ((res_reg[0] & 0xf0) == 0x50) {
2399 goto continue_read_audio_wait;
2401 /* Invalid data from the drive. Shut down the operation. */
2402 else if ((res_reg[0] & 0xf0) != 0x20) {
2404 ("CDU31A: Got result that should have been error: %d\n",
2407 res_reg[1] = SONY_BAD_DATA_ERR;
2413 printk("CDU31A timeout out %d\n", __LINE__);
2416 res_reg[1] = SONY_TIMEOUT_OP_ERR;
2423 /* If data block, then get 2340 bytes offset by 12. */
2424 if (sony_raw_data_mode) {
2425 insb(sony_cd_read_reg, buffer + CD_XA_HEAD,
2428 /* Audio gets the whole 2352 bytes. */
2429 insb(sony_cd_read_reg, buffer, CD_FRAMESIZE_RAW);
2432 /* If I haven't already gotten the result, get it now. */
2434 /* Wait for the drive to tell us we have something */
2435 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
2436 while (time_before(jiffies, retry_count)
2437 && !(is_result_ready())) {
2438 while (handle_sony_cd_attention());
2443 if (!is_result_ready()) {
2445 printk("CDU31A timeout out %d\n",
2449 res_reg[1] = SONY_TIMEOUT_OP_ERR;
2454 get_result(res_reg, res_size);
2458 if ((res_reg[0] & 0xf0) == 0x50) {
2459 if ((res_reg[0] == SONY_NO_CIRC_ERR_BLK_STAT)
2460 || (res_reg[0] == SONY_NO_LECC_ERR_BLK_STAT)
2461 || (res_reg[0] == SONY_RECOV_LECC_ERR_BLK_STAT)
2462 || (res_reg[0] == SONY_NO_ERR_DETECTION_STAT)) {
2463 /* Ok, nothing to do. */
2465 printk("CDU31A: Data block error: 0x%x\n",
2468 res_reg[1] = SONY_BAD_DATA_ERR;
2471 } else if ((res_reg[0] & 0xf0) != 0x20) {
2472 /* The drive gave me bad status, I don't know what to do.
2473 Reset the driver and return an error. */
2474 printk("CDU31A: Invalid block status: 0x%x\n",
2478 res_reg[1] = SONY_BAD_DATA_ERR;
2484 /* Perform a raw data read. This will automatically detect the
2485 track type and read the proper data (audio or data). */
2486 static int read_audio(struct cdrom_read_audio *ra)
2489 unsigned char params[2];
2490 unsigned char res_reg[12];
2491 unsigned int res_size;
2492 unsigned int cframe;
2493 unsigned long flags;
2496 * Make sure no one else is using the driver; wait for them
2497 * to finish if it is so.
2501 while (sony_inuse) {
2502 interruptible_sleep_on(&sony_wait);
2503 if (signal_pending(current)) {
2504 restore_flags(flags);
2509 has_cd_task = current;
2510 restore_flags(flags);
2512 if (!sony_spun_up) {
2516 /* Set the drive to do raw operations. */
2517 params[0] = SONY_SD_DECODE_PARAM;
2518 params[1] = 0x06 | sony_raw_data_mode;
2519 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2520 params, 2, res_reg, &res_size);
2521 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
2522 printk("CDU31A: Unable to set decode params: 0x%2.2x\n",
2527 /* From here down, we have to goto exit_read_audio instead of returning
2528 because the drive parameters have to be set back to data before
2532 /* start_request clears out any readahead data, so it should be safe. */
2533 if (start_request(ra->addr.lba, ra->nframes, 1)) {
2535 goto exit_read_audio;
2538 /* For every requested frame. */
2540 while (cframe < ra->nframes) {
2541 read_audio_data(readahead_buffer, res_reg, &res_size);
2542 if ((res_reg[0] & 0xf0) == 0x20) {
2543 if (res_reg[1] == SONY_BAD_DATA_ERR) {
2545 ("CDU31A: Data error on audio sector %d\n",
2546 ra->addr.lba + cframe);
2547 } else if (res_reg[1] == SONY_ILL_TRACK_R_ERR) {
2548 /* Illegal track type, change track types and start over. */
2549 sony_raw_data_mode =
2550 (sony_raw_data_mode) ? 0 : 1;
2552 /* Set the drive mode. */
2553 params[0] = SONY_SD_DECODE_PARAM;
2554 params[1] = 0x06 | sony_raw_data_mode;
2555 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2557 2, res_reg, &res_size);
2559 || ((res_reg[0] & 0xf0) == 0x20)) {
2561 ("CDU31A: Unable to set decode params: 0x%2.2x\n",
2564 goto exit_read_audio;
2567 /* Restart the request on the current frame. */
2569 (ra->addr.lba + cframe,
2570 ra->nframes - cframe, 1)) {
2572 goto exit_read_audio;
2575 /* Don't go back to the top because don't want to get into
2576 and infinite loop. A lot of code gets duplicated, but
2577 that's no big deal, I don't guess. */
2578 read_audio_data(readahead_buffer, res_reg,
2580 if ((res_reg[0] & 0xf0) == 0x20) {
2582 SONY_BAD_DATA_ERR) {
2584 ("CDU31A: Data error on audio sector %d\n",
2589 ("CDU31A: Error reading audio data on sector %d: %s\n",
2590 ra->addr.lba + cframe,
2594 goto exit_read_audio;
2596 } else if (copy_to_user(ra->buf +
2600 CD_FRAMESIZE_RAW)) {
2602 goto exit_read_audio;
2606 ("CDU31A: Error reading audio data on sector %d: %s\n",
2607 ra->addr.lba + cframe,
2608 translate_error(res_reg[1]));
2610 goto exit_read_audio;
2612 } else if (copy_to_user(ra->buf + (CD_FRAMESIZE_RAW * cframe),
2613 (char *)readahead_buffer,
2614 CD_FRAMESIZE_RAW)) {
2616 goto exit_read_audio;
2622 get_result(res_reg, &res_size);
2623 if ((res_reg[0] & 0xf0) == 0x20) {
2624 printk("CDU31A: Error return from audio read: %s\n",
2625 translate_error(res_reg[1]));
2627 goto exit_read_audio;
2632 /* Set the drive mode back to the proper one for the disk. */
2633 params[0] = SONY_SD_DECODE_PARAM;
2634 if (!sony_xa_mode) {
2639 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2640 params, 2, res_reg, &res_size);
2641 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
2642 printk("CDU31A: Unable to reset decode params: 0x%2.2x\n",
2649 wake_up_interruptible(&sony_wait);
2655 do_sony_cd_cmd_chk(const char *name,
2657 unsigned char *params,
2658 unsigned int num_params,
2659 unsigned char *result_buffer, unsigned int *result_size)
2661 do_sony_cd_cmd(cmd, params, num_params, result_buffer,
2663 if ((*result_size < 2) || ((result_buffer[0] & 0xf0) == 0x20)) {
2664 printk("Sony CDROM error %s (CDROM%s)\n",
2665 translate_error(result_buffer[1]), name);
2672 * Uniform cdrom interface function
2675 static int scd_tray_move(struct cdrom_device_info *cdi, int position)
2677 if (position == 1 /* open tray */ ) {
2678 unsigned char res_reg[12];
2679 unsigned int res_size;
2681 do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2683 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
2686 sony_audio_status = CDROM_AUDIO_INVALID;
2687 return do_sony_cd_cmd_chk("EJECT", SONY_EJECT_CMD, NULL, 0,
2688 res_reg, &res_size);
2690 if (0 == scd_spinup())
2697 * The big ugly ioctl handler.
2699 static int scd_audio_ioctl(struct cdrom_device_info *cdi,
2700 unsigned int cmd, void *arg)
2702 unsigned char res_reg[12];
2703 unsigned int res_size;
2704 unsigned char params[7];
2709 case CDROMSTART: /* Spin up the drive */
2710 return do_sony_cd_cmd_chk("START", SONY_SPIN_UP_CMD, NULL,
2711 0, res_reg, &res_size);
2714 case CDROMSTOP: /* Spin down the drive */
2715 do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2719 * Spin the drive down, ignoring the error if the disk was
2720 * already not spinning.
2722 sony_audio_status = CDROM_AUDIO_NO_STATUS;
2723 return do_sony_cd_cmd_chk("STOP", SONY_SPIN_DOWN_CMD, NULL,
2724 0, res_reg, &res_size);
2726 case CDROMPAUSE: /* Pause the drive */
2727 if (do_sony_cd_cmd_chk
2728 ("PAUSE", SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2731 /* Get the current position and save it for resuming */
2732 if (read_subcode() < 0) {
2735 cur_pos_msf[0] = last_sony_subcode.abs_msf[0];
2736 cur_pos_msf[1] = last_sony_subcode.abs_msf[1];
2737 cur_pos_msf[2] = last_sony_subcode.abs_msf[2];
2738 sony_audio_status = CDROM_AUDIO_PAUSED;
2742 case CDROMRESUME: /* Start the drive after being paused */
2743 if (sony_audio_status != CDROM_AUDIO_PAUSED) {
2747 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2750 /* Start the drive at the saved position. */
2751 params[1] = int_to_bcd(cur_pos_msf[0]);
2752 params[2] = int_to_bcd(cur_pos_msf[1]);
2753 params[3] = int_to_bcd(cur_pos_msf[2]);
2754 params[4] = int_to_bcd(final_pos_msf[0]);
2755 params[5] = int_to_bcd(final_pos_msf[1]);
2756 params[6] = int_to_bcd(final_pos_msf[2]);
2758 if (do_sony_cd_cmd_chk
2759 ("RESUME", SONY_AUDIO_PLAYBACK_CMD, params, 7, res_reg,
2762 sony_audio_status = CDROM_AUDIO_PLAY;
2765 case CDROMPLAYMSF: /* Play starting at the given MSF address. */
2766 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2769 /* The parameters are given in int, must be converted */
2770 for (i = 1; i < 7; i++) {
2772 int_to_bcd(((unsigned char *) arg)[i - 1]);
2775 if (do_sony_cd_cmd_chk
2776 ("PLAYMSF", SONY_AUDIO_PLAYBACK_CMD, params, 7,
2777 res_reg, &res_size) < 0)
2780 /* Save the final position for pauses and resumes */
2781 final_pos_msf[0] = bcd_to_int(params[4]);
2782 final_pos_msf[1] = bcd_to_int(params[5]);
2783 final_pos_msf[2] = bcd_to_int(params[6]);
2784 sony_audio_status = CDROM_AUDIO_PLAY;
2787 case CDROMREADTOCHDR: /* Read the table of contents header */
2789 struct cdrom_tochdr *hdr;
2792 if (!sony_toc_read) {
2796 hdr = (struct cdrom_tochdr *) arg;
2797 hdr->cdth_trk0 = sony_toc.first_track_num;
2798 hdr->cdth_trk1 = sony_toc.last_track_num;
2802 case CDROMREADTOCENTRY: /* Read a given table of contents entry */
2804 struct cdrom_tocentry *entry;
2806 unsigned char *msf_val = NULL;
2809 if (!sony_toc_read) {
2813 entry = (struct cdrom_tocentry *) arg;
2815 track_idx = find_track(entry->cdte_track);
2816 if (track_idx < 0) {
2821 sony_toc.tracks[track_idx].address;
2823 sony_toc.tracks[track_idx].control;
2825 sony_toc.tracks[track_idx].track_start_msf;
2827 /* Logical buffer address or MSF format requested? */
2828 if (entry->cdte_format == CDROM_LBA) {
2829 entry->cdte_addr.lba = msf_to_log(msf_val);
2830 } else if (entry->cdte_format == CDROM_MSF) {
2831 entry->cdte_addr.msf.minute = *msf_val;
2832 entry->cdte_addr.msf.second =
2834 entry->cdte_addr.msf.frame =
2841 case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
2843 struct cdrom_ti *ti = (struct cdrom_ti *) arg;
2847 if (!sony_toc_read) {
2851 if ((ti->cdti_trk0 < sony_toc.first_track_num)
2852 || (ti->cdti_trk0 > sony_toc.last_track_num)
2853 || (ti->cdti_trk1 < ti->cdti_trk0)) {
2857 track_idx = find_track(ti->cdti_trk0);
2858 if (track_idx < 0) {
2862 int_to_bcd(sony_toc.tracks[track_idx].
2863 track_start_msf[0]);
2865 int_to_bcd(sony_toc.tracks[track_idx].
2866 track_start_msf[1]);
2868 int_to_bcd(sony_toc.tracks[track_idx].
2869 track_start_msf[2]);
2872 * If we want to stop after the last track, use the lead-out
2875 if (ti->cdti_trk1 >= sony_toc.last_track_num) {
2876 track_idx = find_track(CDROM_LEADOUT);
2878 track_idx = find_track(ti->cdti_trk1 + 1);
2880 if (track_idx < 0) {
2884 int_to_bcd(sony_toc.tracks[track_idx].
2885 track_start_msf[0]);
2887 int_to_bcd(sony_toc.tracks[track_idx].
2888 track_start_msf[1]);
2890 int_to_bcd(sony_toc.tracks[track_idx].
2891 track_start_msf[2]);
2894 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2897 do_sony_cd_cmd(SONY_AUDIO_PLAYBACK_CMD, params, 7,
2898 res_reg, &res_size);
2901 || ((res_reg[0] & 0xf0) == 0x20)) {
2902 printk("Params: %x %x %x %x %x %x %x\n",
2903 params[0], params[1], params[2],
2904 params[3], params[4], params[5],
2907 ("Sony CDROM error %s (CDROMPLAYTRKIND)\n",
2908 translate_error(res_reg[1]));
2912 /* Save the final position for pauses and resumes */
2913 final_pos_msf[0] = bcd_to_int(params[4]);
2914 final_pos_msf[1] = bcd_to_int(params[5]);
2915 final_pos_msf[2] = bcd_to_int(params[6]);
2916 sony_audio_status = CDROM_AUDIO_PLAY;
2920 case CDROMVOLCTRL: /* Volume control. What volume does this change, anyway? */
2922 struct cdrom_volctrl *volctrl =
2923 (struct cdrom_volctrl *) arg;
2925 params[0] = SONY_SD_AUDIO_VOLUME;
2926 params[1] = volctrl->channel0;
2927 params[2] = volctrl->channel1;
2928 return do_sony_cd_cmd_chk("VOLCTRL",
2929 SONY_SET_DRIVE_PARAM_CMD,
2933 case CDROMSUBCHNL: /* Get subchannel info */
2934 return sony_get_subchnl_info((struct cdrom_subchnl *) arg);
2941 static int scd_dev_ioctl(struct cdrom_device_info *cdi,
2942 unsigned int cmd, unsigned long arg)
2944 void __user *argp = (void __user *)arg;
2948 case CDROMREADAUDIO: /* Read 2352 byte audio tracks and 2340 byte
2951 struct cdrom_read_audio ra;
2955 if (!sony_toc_read) {
2959 if (copy_from_user(&ra, argp, sizeof(ra)))
2962 if (ra.nframes == 0) {
2966 i = verify_area(VERIFY_WRITE, ra.buf,
2967 CD_FRAMESIZE_RAW * ra.nframes);
2971 if (ra.addr_format == CDROM_LBA) {
2973 sony_toc.lead_out_start_lba)
2974 || (ra.addr.lba + ra.nframes >=
2975 sony_toc.lead_out_start_lba)) {
2978 } else if (ra.addr_format == CDROM_MSF) {
2979 if ((ra.addr.msf.minute >= 75)
2980 || (ra.addr.msf.second >= 60)
2981 || (ra.addr.msf.frame >= 75)) {
2985 ra.addr.lba = ((ra.addr.msf.minute * 4500)
2986 + (ra.addr.msf.second * 75)
2987 + ra.addr.msf.frame);
2989 sony_toc.lead_out_start_lba)
2990 || (ra.addr.lba + ra.nframes >=
2991 sony_toc.lead_out_start_lba)) {
2995 /* I know, this can go negative on an unsigned. However,
2996 the first thing done to the data is to add this value,
2997 so this should compensate and allow direct msf access. */
2998 ra.addr.lba -= LOG_START_OFFSET;
3003 return (read_audio(&ra));
3013 static int scd_spinup(void)
3015 unsigned char res_reg[12];
3016 unsigned int res_size;
3022 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
3024 /* The drive sometimes returns error 0. I don't know why, but ignore
3025 it. It seems to mean the drive has already done the operation. */
3026 if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
3027 printk("Sony CDROM %s error (scd_open, spin up)\n",
3028 translate_error(res_reg[1]));
3032 do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, &res_size);
3034 /* The drive sometimes returns error 0. I don't know why, but ignore
3035 it. It seems to mean the drive has already done the operation. */
3036 if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
3037 /* If the drive is already playing, it's ok. */
3038 if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
3039 || (res_reg[1] == 0)) {
3043 /* If the drive says it is not spun up (even though we just did it!)
3044 then retry the operation at least a few times. */
3045 if ((res_reg[1] == SONY_NOT_SPIN_ERR)
3046 && (num_spin_ups < MAX_CDU31A_RETRIES)) {
3048 goto respinup_on_open;
3051 printk("Sony CDROM error %s (scd_open, read toc)\n",
3052 translate_error(res_reg[1]));
3053 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
3061 * Open the drive for operations. Spin the drive up and read the table of
3062 * contents if these have not already been done.
3064 static int scd_open(struct cdrom_device_info *cdi, int openmode)
3066 unsigned char res_reg[12];
3067 unsigned int res_size;
3068 unsigned char params[2];
3070 if (sony_usage == 0) {
3071 if (scd_spinup() != 0)
3074 if (!sony_toc_read) {
3075 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0,
3076 res_reg, &res_size);
3080 /* For XA on the CDU31A only, we have to do special reads.
3081 The CDU33A handles XA automagically. */
3082 /* if ( (sony_toc.disk_type == SONY_XA_DISK_TYPE) */
3083 if ((sony_toc.disk_type != 0x00)
3084 && (!is_double_speed)) {
3085 params[0] = SONY_SD_DECODE_PARAM;
3087 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
3088 params, 2, res_reg, &res_size);
3090 || ((res_reg[0] & 0xf0) == 0x20)) {
3092 ("CDU31A: Unable to set XA params: 0x%2.2x\n",
3097 /* A non-XA disk. Set the parms back if necessary. */
3098 else if (sony_xa_mode) {
3099 params[0] = SONY_SD_DECODE_PARAM;
3101 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
3102 params, 2, res_reg, &res_size);
3104 || ((res_reg[0] & 0xf0) == 0x20)) {
3106 ("CDU31A: Unable to reset XA params: 0x%2.2x\n",
3122 * Close the drive. Spin it down if no task is using it. The spin
3123 * down will fail if playing audio, so audio play is OK.
3125 static void scd_release(struct cdrom_device_info *cdi)
3127 if (sony_usage == 1) {
3128 unsigned char res_reg[12];
3129 unsigned int res_size;
3131 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
3139 static struct cdrom_device_ops scd_dops = {
3141 .release = scd_release,
3142 .drive_status = scd_drive_status,
3143 .media_changed = scd_media_changed,
3144 .tray_move = scd_tray_move,
3145 .lock_door = scd_lock_door,
3146 .select_speed = scd_select_speed,
3147 .get_last_session = scd_get_last_session,
3148 .get_mcn = scd_get_mcn,
3150 .audio_ioctl = scd_audio_ioctl,
3151 .dev_ioctl = scd_dev_ioctl,
3152 .capability = CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK |
3153 CDC_SELECT_SPEED | CDC_MULTI_SESSION |
3154 CDC_MULTI_SESSION | CDC_MCN |
3155 CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO |
3156 CDC_RESET | CDC_IOCTLS | CDC_DRIVE_STATUS,
3160 static struct cdrom_device_info scd_info = {
3167 static int scd_block_open(struct inode *inode, struct file *file)
3169 return cdrom_open(&scd_info, inode, file);
3172 static int scd_block_release(struct inode *inode, struct file *file)
3174 return cdrom_release(&scd_info, file);
3177 static int scd_block_ioctl(struct inode *inode, struct file *file,
3178 unsigned cmd, unsigned long arg)
3180 return cdrom_ioctl(file, &scd_info, inode, cmd, arg);
3183 static int scd_block_media_changed(struct gendisk *disk)
3185 return cdrom_media_changed(&scd_info);
3188 struct block_device_operations scd_bdops =
3190 .owner = THIS_MODULE,
3191 .open = scd_block_open,
3192 .release = scd_block_release,
3193 .ioctl = scd_block_ioctl,
3194 .media_changed = scd_block_media_changed,
3197 static struct gendisk *scd_gendisk;
3199 /* The different types of disc loading mechanisms supported */
3200 static char *load_mech[] __initdata =
3201 { "caddy", "tray", "pop-up", "unknown" };
3204 get_drive_configuration(unsigned short base_io,
3205 unsigned char res_reg[], unsigned int *res_size)
3207 unsigned long retry_count;
3210 if (!request_region(base_io, 4, "cdu31a"))
3213 /* Set the base address */
3214 cdu31a_port = base_io;
3216 /* Set up all the register locations */
3217 sony_cd_cmd_reg = cdu31a_port + SONY_CMD_REG_OFFSET;
3218 sony_cd_param_reg = cdu31a_port + SONY_PARAM_REG_OFFSET;
3219 sony_cd_write_reg = cdu31a_port + SONY_WRITE_REG_OFFSET;
3220 sony_cd_control_reg = cdu31a_port + SONY_CONTROL_REG_OFFSET;
3221 sony_cd_status_reg = cdu31a_port + SONY_STATUS_REG_OFFSET;
3222 sony_cd_result_reg = cdu31a_port + SONY_RESULT_REG_OFFSET;
3223 sony_cd_read_reg = cdu31a_port + SONY_READ_REG_OFFSET;
3224 sony_cd_fifost_reg = cdu31a_port + SONY_FIFOST_REG_OFFSET;
3227 * Check to see if anything exists at the status register location.
3228 * I don't know if this is a good way to check, but it seems to work
3231 if (read_status_register() != 0xff) {
3233 * Reset the drive and wait for attention from it (to say it's reset).
3234 * If you don't wait, the next operation will probably fail.
3237 retry_count = jiffies + SONY_RESET_TIMEOUT;
3238 while (time_before(jiffies, retry_count)
3239 && (!is_attention())) {
3244 /* If attention is never seen probably not a CDU31a present */
3245 if (!is_attention()) {
3252 * Get the drive configuration.
3254 do_sony_cd_cmd(SONY_REQ_DRIVE_CONFIG_CMD,
3256 0, (unsigned char *) res_reg, res_size);
3257 if (*res_size <= 2 || (res_reg[0] & 0xf0) != 0)
3262 /* Return an error */
3265 release_region(cdu31a_port, 4);
3272 * Set up base I/O and interrupts, called from main.c.
3276 static int __init cdu31a_setup(char *strings)
3280 (void) get_options(strings, ARRAY_SIZE(ints), ints);
3283 cdu31a_port = ints[1];
3286 cdu31a_irq = ints[2];
3288 if ((strings != NULL) && (*strings != '\0')) {
3289 if (strcmp(strings, "PAS") == 0) {
3292 printk("CDU31A: Unknown interface type: %s\n",
3300 __setup("cdu31a=", cdu31a_setup);
3305 * Initialize the driver.
3307 int __init cdu31a_init(void)
3309 struct s_sony_drive_config drive_config;
3310 struct gendisk *disk;
3312 unsigned int res_size;
3319 * According to Alex Freed (freed@europa.orion.adobe.com), this is
3320 * required for the Fusion CD-16 package. If the sound driver is
3321 * loaded, it should work fine, but just in case...
3323 * The following turn on the CD-ROM interface for a Fusion CD-16.
3325 if (sony_pas_init) {
3330 /* Setting the base I/O address to 0xffff will disable it. */
3331 if (cdu31a_port == 0xffff)
3334 if (cdu31a_port != 0) {
3335 /* Need IRQ 0 because we can't sleep here. */
3336 tmp_irq = cdu31a_irq;
3338 if (!get_drive_configuration(cdu31a_port,
3339 drive_config.exec_status,
3342 cdu31a_irq = tmp_irq;
3345 for (i = 0; cdu31a_addresses[i].base; i++) {
3346 if (get_drive_configuration(cdu31a_addresses[i].base,
3347 drive_config.exec_status,
3349 cdu31a_irq = cdu31a_addresses[i].int_num;
3357 if (register_blkdev(MAJOR_NR, "cdu31a"))
3360 disk = alloc_disk(1);
3363 disk->major = MAJOR_NR;
3364 disk->first_minor = 0;
3365 sprintf(disk->disk_name, "cdu31a");
3366 disk->fops = &scd_bdops;
3367 disk->flags = GENHD_FL_CD;
3369 if (SONY_HWC_DOUBLE_SPEED(drive_config))
3370 is_double_speed = 1;
3372 tmp_irq = cdu31a_irq; /* Need IRQ 0 because we can't sleep here. */
3375 set_drive_params(sony_speed);
3377 cdu31a_irq = tmp_irq;
3379 if (cdu31a_irq > 0) {
3381 (cdu31a_irq, cdu31a_interrupt, SA_INTERRUPT,
3384 ("Unable to grab IRQ%d for the CDU31A driver\n",
3390 sprintf(msg, "Sony I/F CDROM : %8.8s %16.16s %8.8s\n",
3391 drive_config.vendor_id,
3392 drive_config.product_id,
3393 drive_config.product_rev_level);
3394 sprintf(buf, " Capabilities: %s",
3395 load_mech[SONY_HWC_GET_LOAD_MECH(drive_config)]);
3397 if (SONY_HWC_AUDIO_PLAYBACK(drive_config))
3398 strcat(msg, ", audio");
3400 deficiency |= CDC_PLAY_AUDIO;
3401 if (SONY_HWC_EJECT(drive_config))
3402 strcat(msg, ", eject");
3404 deficiency |= CDC_OPEN_TRAY;
3405 if (SONY_HWC_LED_SUPPORT(drive_config))
3406 strcat(msg, ", LED");
3407 if (SONY_HWC_ELECTRIC_VOLUME(drive_config))
3408 strcat(msg, ", elec. Vol");
3409 if (SONY_HWC_ELECTRIC_VOLUME_CTL(drive_config))
3410 strcat(msg, ", sep. Vol");
3411 if (is_double_speed)
3412 strcat(msg, ", double speed");
3414 deficiency |= CDC_SELECT_SPEED;
3415 if (cdu31a_irq > 0) {
3416 sprintf(buf, ", irq %d", cdu31a_irq);
3422 strcmp("CD-ROM CDU31A", drive_config.product_id) == 0;
3424 cdu31a_queue = blk_init_queue(do_cdu31a_request, &cdu31a_lock);
3428 init_timer(&cdu31a_abort_timer);
3429 cdu31a_abort_timer.function = handle_abort_timeout;
3431 scd_info.mask = deficiency;
3433 if (register_cdrom(&scd_info))
3435 disk->queue = cdu31a_queue;
3442 blk_cleanup_queue(cdu31a_queue);
3445 free_irq(cdu31a_irq, NULL);
3446 printk("Unable to register CDU-31a with Uniform cdrom driver\n");
3449 if (unregister_blkdev(MAJOR_NR, "cdu31a")) {
3450 printk("Can't unregister block device for cdu31a\n");
3453 release_region(cdu31a_port, 4);
3459 void __exit cdu31a_exit(void)
3461 del_gendisk(scd_gendisk);
3462 put_disk(scd_gendisk);
3463 if (unregister_cdrom(&scd_info)) {
3465 ("Can't unregister cdu31a from Uniform cdrom driver\n");
3468 if ((unregister_blkdev(MAJOR_NR, "cdu31a") == -EINVAL)) {
3469 printk("Can't unregister cdu31a\n");
3473 blk_cleanup_queue(cdu31a_queue);
3476 free_irq(cdu31a_irq, NULL);
3478 release_region(cdu31a_port, 4);
3479 printk(KERN_INFO "cdu31a module released.\n");
3483 module_init(cdu31a_init);
3485 module_exit(cdu31a_exit);
3487 MODULE_LICENSE("GPL");
3488 MODULE_ALIAS_BLOCKDEV_MAJOR(CDU31A_CDROM_MAJOR);