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.
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.
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!
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.
87 * Copyright (C) 1993 Corey Minyard
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.
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.
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.
104 * CDs with form1 and form2 sectors cause problems
105 * with current read-ahead strategy.
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.
113 * It probably a little late to be adding a history, but I guess I
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.
122 * 03/07/97 - Fixed a problem with timers.
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>
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>
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.
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>
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>
151 #include <linux/major.h>
153 #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>
170 #include <asm/system.h>
172 #include <asm/uaccess.h>
175 #include <linux/cdrom.h>
178 #define MAJOR_NR CDU31A_CDROM_MAJOR
179 #include <linux/blkdev.h>
181 #define CDU31A_MAX_CONSECUTIVE_ATTENTIONS 10
185 /* Define the following if you have data corruption problems. */
186 #undef SONY_POLL_EACH_BYTE
189 ** Edit the following data to change interrupts, DMA channels, etc.
190 ** Default is polled and no DMA. DMA is not recommended for double-speed
194 unsigned short base; /* I/O Base Address */
195 short int_num; /* Interrupt Number (-1 means scan for it,
196 0 means don't use) */
197 } cdu31a_addresses[] __initdata = {
201 static int handle_sony_cd_attention(void);
202 static int read_subcode(void);
203 static void sony_get_toc(void);
204 static int scd_spinup(void);
205 /*static int scd_open(struct inode *inode, struct file *filp);*/
206 static int scd_open(struct cdrom_device_info *, int);
207 static void do_sony_cd_cmd(unsigned char cmd,
208 unsigned char *params,
209 unsigned int num_params,
210 unsigned char *result_buffer,
211 unsigned int *result_size);
212 static void size_to_buf(unsigned int size, unsigned char *buf);
214 /* Parameters for the read-ahead. */
215 static unsigned int sony_next_block; /* Next 512 byte block offset */
216 static unsigned int sony_blocks_left = 0; /* Number of 512 byte blocks left
217 in the current read command. */
220 /* The base I/O address of the Sony Interface. This is a variable (not a
221 #define) so it can be easily changed via some future ioctl() */
222 static unsigned int cdu31a_port = 0;
223 module_param(cdu31a_port, uint, 0);
226 * The following are I/O addresses of the various registers for the drive. The
227 * comment for the base address also applies here.
229 static volatile unsigned short sony_cd_cmd_reg;
230 static volatile unsigned short sony_cd_param_reg;
231 static volatile unsigned short sony_cd_write_reg;
232 static volatile unsigned short sony_cd_control_reg;
233 static volatile unsigned short sony_cd_status_reg;
234 static volatile unsigned short sony_cd_result_reg;
235 static volatile unsigned short sony_cd_read_reg;
236 static volatile unsigned short sony_cd_fifost_reg;
238 static struct request_queue *cdu31a_queue;
239 static DEFINE_SPINLOCK(cdu31a_lock); /* queue lock */
241 static int sony_spun_up = 0; /* Has the drive been spun up? */
243 static int sony_speed = 0; /* Last wanted speed */
245 static int sony_xa_mode = 0; /* Is an XA disk in the drive
246 and the drive a CDU31A? */
248 static int sony_raw_data_mode = 1; /* 1 if data tracks, 0 if audio.
249 For raw data reads. */
251 static unsigned int sony_usage = 0; /* How many processes have the
254 static int sony_pas_init = 0; /* Initialize the Pro-Audio
257 static struct s_sony_session_toc single_toc; /* Holds the
261 static struct s_all_sessions_toc sony_toc; /* entries gathered from all
264 static int sony_toc_read = 0; /* Has the TOC been read for
267 static struct s_sony_subcode last_sony_subcode; /* Points to the last
268 subcode address read */
270 static volatile int sony_inuse = 0; /* Is the drive in use? Only one operation
273 static DECLARE_WAIT_QUEUE_HEAD(sony_wait); /* Things waiting for the drive */
275 static struct task_struct *has_cd_task = NULL; /* The task that is currently
276 using the CDROM drive, or
279 static int is_double_speed = 0; /* does the drive support double speed ? */
281 static int is_auto_eject = 1; /* Door has been locked? 1=No/0=Yes */
284 * The audio status uses the values from read subchannel data as specified
285 * in include/linux/cdrom.h.
287 static volatile int sony_audio_status = CDROM_AUDIO_NO_STATUS;
290 * The following are a hack for pausing and resuming audio play. The drive
291 * does not work as I would expect it, if you stop it then start it again,
292 * the drive seeks back to the beginning and starts over. This holds the
293 * position during a pause so a resume can restart it. It uses the
294 * audio status variable above to tell if it is paused.
296 static unsigned volatile char cur_pos_msf[3] = { 0, 0, 0 };
297 static unsigned volatile char final_pos_msf[3] = { 0, 0, 0 };
299 /* What IRQ is the drive using? 0 if none. */
300 static int cdu31a_irq = 0;
301 module_param(cdu31a_irq, int, 0);
303 /* The interrupt handler will wake this queue up when it gets an
305 DECLARE_WAIT_QUEUE_HEAD(cdu31a_irq_wait);
307 static int curr_control_reg = 0; /* Current value of the control register */
309 /* A disk changed variable. When a disk change is detected, it will
310 all be set to TRUE. As the upper layers ask for disk_changed status
311 it will be cleared. */
312 static char disk_changed;
314 /* This was readahead_buffer once... Now it's used only for audio reads */
315 static char audio_buffer[CD_FRAMESIZE_RAW];
317 /* Used to time a short period to abort an operation after the
318 drive has been idle for a while. This keeps the light on
319 the drive from flashing for very long. */
320 static struct timer_list cdu31a_abort_timer;
322 /* Marks if the timeout has started an abort read. This is used
323 on entry to the drive to tell the code to read out the status
324 from the abort read. */
325 static int abort_read_started = 0;
328 * Uniform cdrom interface function
329 * report back, if disc has changed from time of last request.
331 static int scd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
335 retval = disk_changed;
342 * Uniform cdrom interface function
343 * report back, if drive is ready
345 static int scd_drive_status(struct cdrom_device_info *cdi, int slot_nr)
347 if (CDSL_CURRENT != slot_nr) {
348 /* we have no changer support */
351 if (scd_spinup() == 0) {
354 return sony_spun_up ? CDS_DISC_OK : CDS_DRIVE_NOT_READY;
357 static inline void enable_interrupts(void)
359 curr_control_reg |= (SONY_ATTN_INT_EN_BIT
360 | SONY_RES_RDY_INT_EN_BIT
361 | SONY_DATA_RDY_INT_EN_BIT);
362 outb(curr_control_reg, sony_cd_control_reg);
365 static inline void disable_interrupts(void)
367 curr_control_reg &= ~(SONY_ATTN_INT_EN_BIT
368 | SONY_RES_RDY_INT_EN_BIT
369 | SONY_DATA_RDY_INT_EN_BIT);
370 outb(curr_control_reg, sony_cd_control_reg);
374 * Wait a little while (used for polling the drive). If in initialization,
375 * setting a timeout doesn't work, so just loop for a while.
377 static inline void sony_sleep(void)
381 if (cdu31a_irq <= 0) {
383 } else { /* Interrupt driven */
388 interruptible_sleep_on(&cdu31a_irq_wait);
389 restore_flags(flags);
395 * The following are convenience routine to read various status and set
396 * various conditions in the drive.
398 static inline int is_attention(void)
400 return ((inb(sony_cd_status_reg) & SONY_ATTN_BIT) != 0);
403 static inline int is_busy(void)
405 return ((inb(sony_cd_status_reg) & SONY_BUSY_BIT) != 0);
408 static inline int is_data_ready(void)
410 return ((inb(sony_cd_status_reg) & SONY_DATA_RDY_BIT) != 0);
413 static inline int is_data_requested(void)
415 return ((inb(sony_cd_status_reg) & SONY_DATA_REQUEST_BIT) != 0);
418 static inline int is_result_ready(void)
420 return ((inb(sony_cd_status_reg) & SONY_RES_RDY_BIT) != 0);
423 static inline int is_param_write_rdy(void)
425 return ((inb(sony_cd_fifost_reg) & SONY_PARAM_WRITE_RDY_BIT) != 0);
428 static inline int is_result_reg_not_empty(void)
430 return ((inb(sony_cd_fifost_reg) & SONY_RES_REG_NOT_EMP_BIT) != 0);
433 static inline void reset_drive(void)
435 curr_control_reg = 0;
437 outb(SONY_DRIVE_RESET_BIT, sony_cd_control_reg);
441 * Uniform cdrom interface function
442 * reset drive and return when it is ready
444 static int scd_reset(struct cdrom_device_info *cdi)
446 unsigned long retry_count;
450 retry_count = jiffies + SONY_RESET_TIMEOUT;
451 while (time_before(jiffies, retry_count) && (!is_attention())) {
458 static inline void clear_attention(void)
460 outb(curr_control_reg | SONY_ATTN_CLR_BIT, sony_cd_control_reg);
463 static inline void clear_result_ready(void)
465 outb(curr_control_reg | SONY_RES_RDY_CLR_BIT, sony_cd_control_reg);
468 static inline void clear_data_ready(void)
470 outb(curr_control_reg | SONY_DATA_RDY_CLR_BIT,
471 sony_cd_control_reg);
474 static inline void clear_param_reg(void)
476 outb(curr_control_reg | SONY_PARAM_CLR_BIT, sony_cd_control_reg);
479 static inline unsigned char read_status_register(void)
481 return (inb(sony_cd_status_reg));
484 static inline unsigned char read_result_register(void)
486 return (inb(sony_cd_result_reg));
489 static inline unsigned char read_data_register(void)
491 return (inb(sony_cd_read_reg));
494 static inline void write_param(unsigned char param)
496 outb(param, sony_cd_param_reg);
499 static inline void write_cmd(unsigned char cmd)
501 outb(curr_control_reg | SONY_RES_RDY_INT_EN_BIT,
502 sony_cd_control_reg);
503 outb(cmd, sony_cd_cmd_reg);
506 static irqreturn_t cdu31a_interrupt(int irq, void *dev_id, struct pt_regs *regs)
510 if (abort_read_started) {
511 /* We might be waiting for an abort to finish. Don't
512 disable interrupts yet, though, because we handle
514 /* Clear out the result registers. */
515 while (is_result_reg_not_empty()) {
516 val = read_result_register();
519 clear_result_ready();
521 /* Clear out the data */
522 while (is_data_requested()) {
523 val = read_data_register();
525 abort_read_started = 0;
527 /* If something was waiting, wake it up now. */
528 if (waitqueue_active(&cdu31a_irq_wait)) {
529 disable_interrupts();
530 wake_up(&cdu31a_irq_wait);
532 } else if (waitqueue_active(&cdu31a_irq_wait)) {
533 disable_interrupts();
534 wake_up(&cdu31a_irq_wait);
536 disable_interrupts();
538 ("CDU31A: Got an interrupt but nothing was waiting\n");
544 * give more verbose error messages
546 static unsigned char *translate_error(unsigned char err_code)
548 static unsigned char errbuf[80];
551 case 0x10: return "illegal command ";
552 case 0x11: return "illegal parameter ";
554 case 0x20: return "not loaded ";
555 case 0x21: return "no disc ";
556 case 0x22: return "not spinning ";
557 case 0x23: return "spinning ";
558 case 0x25: return "spindle servo ";
559 case 0x26: return "focus servo ";
560 case 0x29: return "eject mechanism ";
561 case 0x2a: return "audio playing ";
562 case 0x2c: return "emergency eject ";
564 case 0x30: return "focus ";
565 case 0x31: return "frame sync ";
566 case 0x32: return "subcode address ";
567 case 0x33: return "block sync ";
568 case 0x34: return "header address ";
570 case 0x40: return "illegal track read ";
571 case 0x41: return "mode 0 read ";
572 case 0x42: return "illegal mode read ";
573 case 0x43: return "illegal block size read ";
574 case 0x44: return "mode read ";
575 case 0x45: return "form read ";
576 case 0x46: return "leadout read ";
577 case 0x47: return "buffer overrun ";
579 case 0x53: return "unrecoverable CIRC ";
580 case 0x57: return "unrecoverable LECC ";
582 case 0x60: return "no TOC ";
583 case 0x61: return "invalid subcode data ";
584 case 0x63: return "focus on TOC read ";
585 case 0x64: return "frame sync on TOC read ";
586 case 0x65: return "TOC data ";
588 case 0x70: return "hardware failure ";
589 case 0x91: return "leadin ";
590 case 0x92: return "leadout ";
591 case 0x93: return "data track ";
593 sprintf(errbuf, "unknown 0x%02x ", err_code);
598 * Set the drive parameters so the drive will auto-spin-up when a
601 static void set_drive_params(int want_doublespeed)
603 unsigned char res_reg[12];
604 unsigned int res_size;
605 unsigned char params[3];
608 params[0] = SONY_SD_AUTO_SPIN_DOWN_TIME;
609 params[1] = 0x00; /* Never spin down the drive. */
610 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
611 params, 2, res_reg, &res_size);
612 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
613 printk(" Unable to set spin-down time: 0x%2.2x\n",
617 params[0] = SONY_SD_MECH_CONTROL;
618 params[1] = SONY_AUTO_SPIN_UP_BIT; /* Set auto spin up */
621 params[1] |= SONY_AUTO_EJECT_BIT;
623 if (is_double_speed && want_doublespeed) {
624 params[1] |= SONY_DOUBLE_SPEED_BIT; /* Set the drive to double speed if
627 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
628 params, 2, res_reg, &res_size);
629 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
630 printk(" Unable to set mechanical parameters: 0x%2.2x\n",
636 * Uniform cdrom interface function
637 * select reading speed for data access
639 static int scd_select_speed(struct cdrom_device_info *cdi, int speed)
644 sony_speed = speed - 1;
646 set_drive_params(sony_speed);
651 * Uniform cdrom interface function
652 * lock or unlock eject button
654 static int scd_lock_door(struct cdrom_device_info *cdi, int lock)
661 set_drive_params(sony_speed);
666 * This code will reset the drive and attempt to restore sane parameters.
668 static void restart_on_error(void)
670 unsigned char res_reg[12];
671 unsigned int res_size;
672 unsigned long retry_count;
675 printk("cdu31a: Resetting drive on error\n");
677 retry_count = jiffies + SONY_RESET_TIMEOUT;
678 while (time_before(jiffies, retry_count) && (!is_attention())) {
681 set_drive_params(sony_speed);
682 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
683 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
684 printk("cdu31a: Unable to spin up drive: 0x%2.2x\n",
694 * This routine writes data to the parameter register. Since this should
695 * happen fairly fast, it is polled with no OS waits between.
697 static int write_params(unsigned char *params, int num_params)
699 unsigned int retry_count;
702 retry_count = SONY_READY_RETRIES;
703 while ((retry_count > 0) && (!is_param_write_rdy())) {
706 if (!is_param_write_rdy()) {
710 while (num_params > 0) {
711 write_param(*params);
721 * The following reads data from the command result register. It is a
722 * fairly complex routine, all status info flows back through this
723 * interface. The algorithm is stolen directly from the flowcharts in
727 get_result(unsigned char *result_buffer, unsigned int *result_size)
731 unsigned long retry_count;
734 while (handle_sony_cd_attention());
735 /* Wait for the result data to be ready */
736 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
737 while (time_before(jiffies, retry_count)
738 && (is_busy() || (!(is_result_ready())))) {
741 while (handle_sony_cd_attention());
743 if (is_busy() || (!(is_result_ready()))) {
745 printk("CDU31A timeout out %d\n", __LINE__);
747 result_buffer[0] = 0x20;
748 result_buffer[1] = SONY_TIMEOUT_OP_ERR;
754 * Get the first two bytes. This determines what else needs
757 clear_result_ready();
758 a = read_result_register();
762 /* Check for block error status result. */
763 if ((a & 0xf0) == 0x50) {
768 b = read_result_register();
774 * 0x20 means an error occurred. Byte 2 will have the error code.
775 * Otherwise, the command succeeded, byte 2 will have the count of
776 * how many more status bytes are coming.
778 * The result register can be read 10 bytes at a time, a wait for
779 * result ready to be asserted must be done between every 10 bytes.
781 if ((a & 0xf0) != 0x20) {
783 for (i = 0; i < 8; i++) {
784 *result_buffer = read_result_register();
791 retry_count = SONY_READY_RETRIES;
792 while ((retry_count > 0)
793 && (!is_result_ready())) {
796 if (!is_result_ready()) {
798 printk("CDU31A timeout out %d\n",
801 result_buffer[0] = 0x20;
808 clear_result_ready();
810 for (i = 0; i < 10; i++) {
812 read_result_register();
820 retry_count = SONY_READY_RETRIES;
821 while ((retry_count > 0)
822 && (!is_result_ready())) {
825 if (!is_result_ready()) {
827 printk("CDU31A timeout out %d\n",
830 result_buffer[0] = 0x20;
840 *result_buffer = read_result_register();
849 * Do a command that does not involve data transfer. This routine must
850 * be re-entrant from the same task to support being called from the
851 * data operation code when an error occurs.
854 do_sony_cd_cmd(unsigned char cmd,
855 unsigned char *params,
856 unsigned int num_params,
857 unsigned char *result_buffer, unsigned int *result_size)
859 unsigned long retry_count;
867 if (current != has_cd_task) { /* Allow recursive calls to this routine */
869 interruptible_sleep_on(&sony_wait);
870 if (signal_pending(current)) {
871 result_buffer[0] = 0x20;
872 result_buffer[1] = SONY_SIGNAL_OP_ERR;
874 restore_flags(flags);
879 has_cd_task = current;
888 while (handle_sony_cd_attention());
892 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
893 while (time_before(jiffies, retry_count) && (is_busy())) {
896 while (handle_sony_cd_attention());
900 printk("CDU31A timeout out %d\n", __LINE__);
902 result_buffer[0] = 0x20;
903 result_buffer[1] = SONY_TIMEOUT_OP_ERR;
906 clear_result_ready();
909 write_params(params, num_params);
912 get_result(result_buffer, result_size);
915 if (((result_buffer[0] & 0xf0) == 0x20)
916 && (num_retries < MAX_CDU31A_RETRIES)) {
919 goto retry_cd_operation;
922 if (!recursive_call) {
925 wake_up_interruptible(&sony_wait);
928 restore_flags(flags);
933 * Handle an attention from the drive. This will return 1 if it found one
934 * or 0 if not (if one is found, the caller might want to call again).
936 * This routine counts the number of consecutive times it is called
937 * (since this is always called from a while loop until it returns
938 * a 0), and returns a 0 if it happens too many times. This will help
941 static int handle_sony_cd_attention(void)
943 unsigned char atten_code;
944 static int num_consecutive_attentions = 0;
949 printk("Entering handle_sony_cd_attention\n");
951 if (is_attention()) {
952 if (num_consecutive_attentions >
953 CDU31A_MAX_CONSECUTIVE_ATTENTIONS) {
955 ("cdu31a: Too many consecutive attentions: %d\n",
956 num_consecutive_attentions);
957 num_consecutive_attentions = 0;
959 printk("Leaving handle_sony_cd_attention at %d\n",
966 atten_code = read_result_register();
968 switch (atten_code) {
969 /* Someone changed the CD. Mark it as changed */
970 case SONY_MECH_LOADED_ATTN:
973 sony_audio_status = CDROM_AUDIO_NO_STATUS;
974 sony_blocks_left = 0;
977 case SONY_SPIN_DOWN_COMPLETE_ATTN:
978 /* Mark the disk as spun down. */
982 case SONY_AUDIO_PLAY_DONE_ATTN:
983 sony_audio_status = CDROM_AUDIO_COMPLETED;
987 case SONY_EJECT_PUSHED_ATTN:
989 sony_audio_status = CDROM_AUDIO_INVALID;
993 case SONY_LEAD_IN_ERR_ATTN:
994 case SONY_LEAD_OUT_ERR_ATTN:
995 case SONY_DATA_TRACK_ERR_ATTN:
996 case SONY_AUDIO_PLAYBACK_ERR_ATTN:
997 sony_audio_status = CDROM_AUDIO_ERROR;
1001 num_consecutive_attentions++;
1003 printk("Leaving handle_sony_cd_attention at %d\n",
1007 } else if (abort_read_started) {
1008 while (is_result_reg_not_empty()) {
1009 val = read_result_register();
1012 clear_result_ready();
1013 /* Clear out the data */
1014 while (is_data_requested()) {
1015 val = read_data_register();
1017 abort_read_started = 0;
1019 printk("Leaving handle_sony_cd_attention at %d\n",
1025 num_consecutive_attentions = 0;
1027 printk("Leaving handle_sony_cd_attention at %d\n", __LINE__);
1033 /* Convert from an integer 0-99 to BCD */
1034 static inline unsigned int int_to_bcd(unsigned int val)
1039 retval = (val / 10) << 4;
1040 retval = retval | val % 10;
1045 /* Convert from BCD to an integer from 0-99 */
1046 static unsigned int bcd_to_int(unsigned int bcd)
1048 return ((((bcd >> 4) & 0x0f) * 10) + (bcd & 0x0f));
1053 * Convert a logical sector value (like the OS would want to use for
1054 * a block device) to an MSF format.
1056 static void log_to_msf(unsigned int log, unsigned char *msf)
1058 log = log + LOG_START_OFFSET;
1059 msf[0] = int_to_bcd(log / 4500);
1061 msf[1] = int_to_bcd(log / 75);
1062 msf[2] = int_to_bcd(log % 75);
1067 * Convert an MSF format to a logical sector.
1069 static unsigned int msf_to_log(unsigned char *msf)
1076 log += msf[0] * 4500;
1077 log = log - LOG_START_OFFSET;
1084 * Take in integer size value and put it into a buffer like
1085 * the drive would want to see a number-of-sector value.
1087 static void size_to_buf(unsigned int size, unsigned char *buf)
1089 buf[0] = size / 65536;
1090 size = size % 65536;
1091 buf[1] = size / 256;
1092 buf[2] = size % 256;
1095 /* Starts a read operation. Returns 0 on success and 1 on failure.
1096 The read operation used here allows multiple sequential sectors
1097 to be read and status returned for each sector. The driver will
1098 read the output one at a time as the requests come and abort the
1099 operation if the requested sector is not the next one from the
1102 start_request(unsigned int sector, unsigned int nsect)
1104 unsigned char params[6];
1105 unsigned long retry_count;
1109 printk("Entering start_request\n");
1111 log_to_msf(sector, params);
1112 size_to_buf(nsect, ¶ms[3]);
1115 * Clear any outstanding attentions and wait for the drive to
1116 * complete any pending operations.
1118 while (handle_sony_cd_attention());
1120 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1121 while (time_before(jiffies, retry_count) && (is_busy())) {
1124 while (handle_sony_cd_attention());
1128 printk("CDU31A: Timeout while waiting to issue command\n");
1130 printk("Leaving start_request at %d\n", __LINE__);
1134 /* Issue the command */
1135 clear_result_ready();
1138 write_params(params, 6);
1139 write_cmd(SONY_READ_BLKERR_STAT_CMD);
1141 sony_blocks_left = nsect * 4;
1142 sony_next_block = sector * 4;
1144 printk("Leaving start_request at %d\n", __LINE__);
1149 printk("Leaving start_request at %d\n", __LINE__);
1153 /* Abort a pending read operation. Clear all the drive status variables. */
1154 static void abort_read(void)
1156 unsigned char result_reg[2];
1161 do_sony_cd_cmd(SONY_ABORT_CMD, NULL, 0, result_reg, &result_size);
1162 if ((result_reg[0] & 0xf0) == 0x20) {
1163 printk("CDU31A: Error aborting read, %s error\n",
1164 translate_error(result_reg[1]));
1167 while (is_result_reg_not_empty()) {
1168 val = read_result_register();
1171 clear_result_ready();
1172 /* Clear out the data */
1173 while (is_data_requested()) {
1174 val = read_data_register();
1177 sony_blocks_left = 0;
1180 /* Called when the timer times out. This will abort the
1181 pending read operation. */
1182 static void handle_abort_timeout(unsigned long data)
1184 unsigned long flags;
1187 printk("Entering handle_abort_timeout\n");
1191 /* If it is in use, ignore it. */
1193 /* We can't use abort_read(), because it will sleep
1194 or schedule in the timer interrupt. Just start
1195 the operation, finish it on the next access to
1197 clear_result_ready();
1199 write_cmd(SONY_ABORT_CMD);
1201 sony_blocks_left = 0;
1202 abort_read_started = 1;
1204 restore_flags(flags);
1206 printk("Leaving handle_abort_timeout\n");
1210 /* Actually get one sector of data from the drive. */
1212 input_data_sector(char *buffer)
1215 printk("Entering input_data_sector\n");
1218 /* If an XA disk on a CDU31A, skip the first 12 bytes of data from
1219 the disk. The real data is after that. We can use audio_buffer. */
1221 insb(sony_cd_read_reg, audio_buffer, CD_XA_HEAD);
1225 insb(sony_cd_read_reg, buffer, 2048);
1227 /* If an XA disk, we have to clear out the rest of the unused
1228 error correction data. We can use audio_buffer for that. */
1230 insb(sony_cd_read_reg, audio_buffer, CD_XA_TAIL);
1233 printk("Leaving input_data_sector\n");
1237 /* read data from the drive. Note the nsect must be <= 4. */
1239 read_data_block(char *buffer,
1241 unsigned int nblocks,
1242 unsigned char res_reg[], int *res_size)
1244 unsigned long retry_count;
1247 printk("Entering read_data_block\n");
1254 /* Wait for the drive to tell us we have something */
1255 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1256 while (time_before(jiffies, retry_count) && !(is_data_ready())) {
1257 while (handle_sony_cd_attention());
1261 if (!(is_data_ready())) {
1262 if (is_result_ready()) {
1263 get_result(res_reg, res_size);
1264 if ((res_reg[0] & 0xf0) != 0x20) {
1266 ("CDU31A: Got result that should have been error: %d\n",
1269 res_reg[1] = SONY_BAD_DATA_ERR;
1275 printk("CDU31A timeout out %d\n", __LINE__);
1278 res_reg[1] = SONY_TIMEOUT_OP_ERR;
1283 input_data_sector(buffer);
1284 sony_blocks_left -= nblocks;
1285 sony_next_block += nblocks;
1287 /* Wait for the status from the drive. */
1288 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
1289 while (time_before(jiffies, retry_count)
1290 && !(is_result_ready())) {
1291 while (handle_sony_cd_attention());
1296 if (!is_result_ready()) {
1298 printk("CDU31A timeout out %d\n", __LINE__);
1301 res_reg[1] = SONY_TIMEOUT_OP_ERR;
1305 get_result(res_reg, res_size);
1307 /* If we got a buffer status, handle that. */
1308 if ((res_reg[0] & 0xf0) == 0x50) {
1311 SONY_NO_CIRC_ERR_BLK_STAT)
1313 SONY_NO_LECC_ERR_BLK_STAT)
1315 SONY_RECOV_LECC_ERR_BLK_STAT)) {
1319 ("CDU31A: Data block error: 0x%x\n",
1322 res_reg[1] = SONY_BAD_DATA_ERR;
1326 /* Final transfer is done for read command, get final result. */
1327 if (sony_blocks_left == 0) {
1328 get_result(res_reg, res_size);
1330 } else if ((res_reg[0] & 0xf0) != 0x20) {
1331 /* The drive gave me bad status, I don't know what to do.
1332 Reset the driver and return an error. */
1334 ("CDU31A: Invalid block status: 0x%x\n",
1338 res_reg[1] = SONY_BAD_DATA_ERR;
1344 printk("Leaving read_data_block at %d\n", __LINE__);
1350 * The OS calls this to perform a read or write operation to the drive.
1351 * Write obviously fail. Reads to a read ahead of sony_buffer_size
1352 * bytes to help speed operations. This especially helps since the OS
1353 * uses 1024 byte blocks and the drive uses 2048 byte blocks. Since most
1354 * data access on a CD is done sequentially, this saves a lot of operations.
1356 static void do_cdu31a_request(request_queue_t * q)
1358 struct request *req;
1359 int block, nblock, num_retries;
1360 unsigned char res_reg[12];
1361 unsigned int res_size;
1362 unsigned long flags;
1366 printk("Entering do_cdu31a_request\n");
1370 * Make sure no one else is using the driver; wait for them
1371 * to finish if it is so.
1375 while (sony_inuse) {
1376 interruptible_sleep_on(&sony_wait);
1377 if (signal_pending(current)) {
1378 restore_flags(flags);
1380 printk("Leaving do_cdu31a_request at %d\n",
1387 has_cd_task = current;
1389 /* Get drive status before doing anything. */
1390 while (handle_sony_cd_attention());
1392 /* Make sure we have a valid TOC. */
1396 * jens: driver has lots of races
1398 spin_unlock_irq(q->queue_lock);
1400 /* Make sure the timer is cancelled. */
1401 del_timer(&cdu31a_abort_timer);
1405 * The beginning here is stolen from the hard disk driver. I hope
1408 req = elv_next_request(q);
1410 goto end_do_cdu31a_request;
1415 block = req->sector;
1416 nblock = req->nr_sectors;
1418 printk("CDU31A: request at block %d, length %d blocks\n",
1421 if (!sony_toc_read) {
1422 printk("CDU31A: TOC not read\n");
1423 end_request(req, 0);
1428 if (!(req->flags & REQ_CMD))
1430 if (rq_data_dir(req) == WRITE) {
1431 end_request(req, 0);
1434 if (rq_data_dir(req) != READ)
1435 panic("CDU31A: Unknown cmd");
1437 * If the block address is invalid or the request goes beyond the end of
1438 * the media, return an error.
1440 if (((block + nblock) / 4) >= sony_toc.lead_out_start_lba) {
1441 printk("CDU31A: Request past end of media\n");
1442 end_request(req, 0);
1451 while (handle_sony_cd_attention());
1453 if (!sony_toc_read) {
1454 printk("CDU31A: TOC not read\n");
1455 end_request(req, 0);
1459 /* If no data is left to be read from the drive, start the
1461 if (sony_blocks_left == 0) {
1462 if (start_request(block / 4, nblock / 4)) {
1463 end_request(req, 0);
1467 /* If the requested block is not the next one waiting in
1468 the driver, abort the current operation and start a
1470 else if (block != sony_next_block) {
1472 printk("CDU31A Warning: Read for block %d, expected %d\n",
1473 block, sony_next_block);
1476 if (!sony_toc_read) {
1477 printk("CDU31A: TOC not read\n");
1478 end_request(req, 0);
1481 if (start_request(block / 4, nblock / 4)) {
1482 printk("CDU31a: start request failed\n");
1483 end_request(req, 0);
1488 read_data_block(req->buffer, block, nblock, res_reg, &res_size);
1490 if (res_reg[0] != 0x20) {
1491 if (!end_that_request_first(req, 1, nblock)) {
1492 spin_lock_irq(q->queue_lock);
1493 blkdev_dequeue_request(req);
1494 end_that_request_last(req);
1495 spin_unlock_irq(q->queue_lock);
1500 if (num_retries > MAX_CDU31A_RETRIES) {
1501 end_request(req, 0);
1506 if (res_reg[1] == SONY_NOT_SPIN_ERR) {
1507 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
1510 printk("CDU31A: %s error for block %d, nblock %d\n",
1511 translate_error(res_reg[1]), block, nblock);
1513 goto try_read_again;
1515 end_do_cdu31a_request:
1516 spin_lock_irq(q->queue_lock);
1518 /* After finished, cancel any pending operations. */
1521 /* Start a timer to time out after a while to disable
1523 cdu31a_abort_timer.expires = jiffies + 2 * HZ; /* Wait 2 seconds */
1524 add_timer(&cdu31a_abort_timer);
1529 wake_up_interruptible(&sony_wait);
1530 restore_flags(flags);
1532 printk("Leaving do_cdu31a_request at %d\n", __LINE__);
1538 * Read the table of contents from the drive and set up TOC if
1541 static void sony_get_toc(void)
1543 unsigned char res_reg[2];
1544 unsigned int res_size;
1545 unsigned char parms[1];
1548 int totaltracks = 0;
1553 printk("Entering sony_get_toc\n");
1557 if (!sony_toc_read) {
1559 /* Ignore the result, since it might error if spinning already. */
1560 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
1563 do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg,
1566 /* The drive sometimes returns error 0. I don't know why, but ignore
1567 it. It seems to mean the drive has already done the operation. */
1569 || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
1570 /* If the drive is already playing, it's ok. */
1571 if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
1572 || (res_reg[1] == 0)) {
1573 goto gettoc_drive_spinning;
1576 /* If the drive says it is not spun up (even though we just did it!)
1577 then retry the operation at least a few times. */
1578 if ((res_reg[1] == SONY_NOT_SPIN_ERR)
1579 && (num_spin_ups < MAX_CDU31A_RETRIES)) {
1581 goto respinup_on_gettoc;
1584 printk("cdu31a: Error reading TOC: %x %s\n",
1585 res_reg[0], translate_error(res_reg[1]));
1589 gettoc_drive_spinning:
1591 /* The idea here is we keep asking for sessions until the command
1592 fails. Then we know what the last valid session on the disk is.
1593 No need to check session 0, since session 0 is the same as session
1594 1; the command returns different information if you give it 0.
1597 memset(&sony_toc, 0x0e, sizeof(sony_toc));
1598 memset(&single_toc, 0x0f, sizeof(single_toc));
1602 /* This seems to slow things down enough to make it work. This
1603 * appears to be a problem in do_sony_cd_cmd. This printk seems
1604 * to address the symptoms... -Erik */
1606 printk("cdu31a: Trying session %d\n", session);
1609 do_sony_cd_cmd(SONY_READ_TOC_SPEC_CMD,
1610 parms, 1, res_reg, &res_size);
1613 printk("%2.2x %2.2x\n", res_reg[0], res_reg[1]);
1617 || ((res_reg[0] & 0xf0) == 0x20)) {
1618 /* An error reading the TOC, this must be past the last session. */
1621 ("Yikes! Couldn't read any sessions!");
1625 printk("Reading session %d\n", session);
1629 do_sony_cd_cmd(SONY_REQ_TOC_DATA_SPEC_CMD,
1632 (unsigned char *) &single_toc,
1635 || ((single_toc.exec_status[0] & 0xf0) ==
1638 ("cdu31a: Error reading session %d: %x %s\n",
1639 session, single_toc.exec_status[0],
1640 translate_error(single_toc.
1642 /* An error reading the TOC. Return without sony_toc_read
1648 ("add0 %01x, con0 %01x, poi0 %02x, 1st trk %d, dsktyp %x, dum0 %x\n",
1649 single_toc.address0, single_toc.control0,
1651 bcd_to_int(single_toc.first_track_num),
1652 single_toc.disk_type, single_toc.dummy0);
1654 ("add1 %01x, con1 %01x, poi1 %02x, lst trk %d, dummy1 %x, dum2 %x\n",
1655 single_toc.address1, single_toc.control1,
1657 bcd_to_int(single_toc.last_track_num),
1658 single_toc.dummy1, single_toc.dummy2);
1660 ("add2 %01x, con2 %01x, poi2 %02x leadout start min %d, sec %d, frame %d\n",
1661 single_toc.address2, single_toc.control2,
1663 bcd_to_int(single_toc.lead_out_start_msf[0]),
1664 bcd_to_int(single_toc.lead_out_start_msf[1]),
1665 bcd_to_int(single_toc.lead_out_start_msf[2]));
1666 if (res_size > 18 && single_toc.pointb0 > 0xaf)
1668 ("addb0 %01x, conb0 %01x, poib0 %02x, nextsession min %d, sec %d, frame %d\n"
1669 "#mode5_ptrs %02d, max_start_outer_leadout_msf min %d, sec %d, frame %d\n",
1670 single_toc.addressb0,
1671 single_toc.controlb0,
1673 bcd_to_int(single_toc.
1674 next_poss_prog_area_msf
1676 bcd_to_int(single_toc.
1677 next_poss_prog_area_msf
1679 bcd_to_int(single_toc.
1680 next_poss_prog_area_msf
1682 single_toc.num_mode_5_pointers,
1683 bcd_to_int(single_toc.
1684 max_start_outer_leadout_msf
1686 bcd_to_int(single_toc.
1687 max_start_outer_leadout_msf
1689 bcd_to_int(single_toc.
1690 max_start_outer_leadout_msf
1692 if (res_size > 27 && single_toc.pointb1 > 0xaf)
1694 ("addb1 %01x, conb1 %01x, poib1 %02x, %x %x %x %x #skipint_ptrs %d, #skiptrkassign %d %x\n",
1695 single_toc.addressb1,
1696 single_toc.controlb1,
1698 single_toc.dummyb0_1[0],
1699 single_toc.dummyb0_1[1],
1700 single_toc.dummyb0_1[2],
1701 single_toc.dummyb0_1[3],
1702 single_toc.num_skip_interval_pointers,
1703 single_toc.num_skip_track_assignments,
1704 single_toc.dummyb0_2);
1705 if (res_size > 36 && single_toc.pointb2 > 0xaf)
1707 ("addb2 %01x, conb2 %01x, poib2 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1708 single_toc.addressb2,
1709 single_toc.controlb2,
1711 single_toc.tracksb2[0],
1712 single_toc.tracksb2[1],
1713 single_toc.tracksb2[2],
1714 single_toc.tracksb2[3],
1715 single_toc.tracksb2[4],
1716 single_toc.tracksb2[5],
1717 single_toc.tracksb2[6]);
1718 if (res_size > 45 && single_toc.pointb3 > 0xaf)
1720 ("addb3 %01x, conb3 %01x, poib3 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1721 single_toc.addressb3,
1722 single_toc.controlb3,
1724 single_toc.tracksb3[0],
1725 single_toc.tracksb3[1],
1726 single_toc.tracksb3[2],
1727 single_toc.tracksb3[3],
1728 single_toc.tracksb3[4],
1729 single_toc.tracksb3[5],
1730 single_toc.tracksb3[6]);
1731 if (res_size > 54 && single_toc.pointb4 > 0xaf)
1733 ("addb4 %01x, conb4 %01x, poib4 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1734 single_toc.addressb4,
1735 single_toc.controlb4,
1737 single_toc.tracksb4[0],
1738 single_toc.tracksb4[1],
1739 single_toc.tracksb4[2],
1740 single_toc.tracksb4[3],
1741 single_toc.tracksb4[4],
1742 single_toc.tracksb4[5],
1743 single_toc.tracksb4[6]);
1744 if (res_size > 63 && single_toc.pointc0 > 0xaf)
1746 ("addc0 %01x, conc0 %01x, poic0 %02x, %02x %02x %02x %02x %02x %02x %02x\n",
1747 single_toc.addressc0,
1748 single_toc.controlc0,
1750 single_toc.dummyc0[0],
1751 single_toc.dummyc0[1],
1752 single_toc.dummyc0[2],
1753 single_toc.dummyc0[3],
1754 single_toc.dummyc0[4],
1755 single_toc.dummyc0[5],
1756 single_toc.dummyc0[6]);
1761 sony_toc.lead_out_start_msf[0] =
1762 bcd_to_int(single_toc.lead_out_start_msf[0]);
1763 sony_toc.lead_out_start_msf[1] =
1764 bcd_to_int(single_toc.lead_out_start_msf[1]);
1765 sony_toc.lead_out_start_msf[2] =
1766 bcd_to_int(single_toc.lead_out_start_msf[2]);
1767 sony_toc.lead_out_start_lba =
1768 single_toc.lead_out_start_lba =
1769 msf_to_log(sony_toc.lead_out_start_msf);
1771 /* For points that do not exist, move the data over them
1772 to the right location. */
1773 if (single_toc.pointb0 != 0xb0) {
1774 memmove(((char *) &single_toc) + 27,
1775 ((char *) &single_toc) + 18,
1778 } else if (res_size > 18) {
1779 sony_toc.lead_out_start_msf[0] =
1780 bcd_to_int(single_toc.
1781 max_start_outer_leadout_msf
1783 sony_toc.lead_out_start_msf[1] =
1784 bcd_to_int(single_toc.
1785 max_start_outer_leadout_msf
1787 sony_toc.lead_out_start_msf[2] =
1788 bcd_to_int(single_toc.
1789 max_start_outer_leadout_msf
1791 sony_toc.lead_out_start_lba =
1792 msf_to_log(sony_toc.
1793 lead_out_start_msf);
1795 if (single_toc.pointb1 != 0xb1) {
1796 memmove(((char *) &single_toc) + 36,
1797 ((char *) &single_toc) + 27,
1801 if (single_toc.pointb2 != 0xb2) {
1802 memmove(((char *) &single_toc) + 45,
1803 ((char *) &single_toc) + 36,
1807 if (single_toc.pointb3 != 0xb3) {
1808 memmove(((char *) &single_toc) + 54,
1809 ((char *) &single_toc) + 45,
1813 if (single_toc.pointb4 != 0xb4) {
1814 memmove(((char *) &single_toc) + 63,
1815 ((char *) &single_toc) + 54,
1819 if (single_toc.pointc0 != 0xc0) {
1820 memmove(((char *) &single_toc) + 72,
1821 ((char *) &single_toc) + 63,
1827 ("start track lba %u, leadout start lba %u\n",
1828 single_toc.start_track_lba,
1829 single_toc.lead_out_start_lba);
1835 bcd_to_int(single_toc.last_track_num)
1837 bcd_to_int(single_toc.
1838 first_track_num); i++) {
1840 ("trk %02d: add 0x%01x, con 0x%01x, track %02d, start min %02d, sec %02d, frame %02d\n",
1842 single_toc.tracks[i].address,
1843 single_toc.tracks[i].control,
1844 bcd_to_int(single_toc.
1846 bcd_to_int(single_toc.
1850 bcd_to_int(single_toc.
1854 bcd_to_int(single_toc.
1859 bcd_to_int(single_toc.
1862 bcd_to_int(single_toc.
1866 bcd_to_int(single_toc.
1869 bcd_to_int(single_toc.
1874 ("min track number %d, max track number %d\n",
1879 /* prepare a special table of contents for a CD-I disc. They don't have one. */
1880 if (single_toc.disk_type == 0x10 &&
1881 single_toc.first_track_num == 2 &&
1882 single_toc.last_track_num == 2 /* CD-I */ ) {
1883 sony_toc.tracks[totaltracks].address = 1;
1884 sony_toc.tracks[totaltracks].control = 4; /* force data tracks */
1885 sony_toc.tracks[totaltracks].track = 1;
1886 sony_toc.tracks[totaltracks].
1887 track_start_msf[0] = 0;
1888 sony_toc.tracks[totaltracks].
1889 track_start_msf[1] = 2;
1890 sony_toc.tracks[totaltracks].
1891 track_start_msf[2] = 0;
1895 /* gather track entries from this session */
1901 bcd_to_int(single_toc.last_track_num)
1903 bcd_to_int(single_toc.
1905 i++, totaltracks++) {
1906 sony_toc.tracks[totaltracks].
1908 single_toc.tracks[i].address;
1909 sony_toc.tracks[totaltracks].
1911 single_toc.tracks[i].control;
1912 sony_toc.tracks[totaltracks].
1914 bcd_to_int(single_toc.
1916 sony_toc.tracks[totaltracks].
1917 track_start_msf[0] =
1918 bcd_to_int(single_toc.
1920 track_start_msf[0]);
1921 sony_toc.tracks[totaltracks].
1922 track_start_msf[1] =
1923 bcd_to_int(single_toc.
1925 track_start_msf[1]);
1926 sony_toc.tracks[totaltracks].
1927 track_start_msf[2] =
1928 bcd_to_int(single_toc.
1930 track_start_msf[2]);
1934 msf_to_log(sony_toc.
1939 sony_toc.tracks[totaltracks].
1943 tracks[totaltracks].
1946 sony_toc.tracks[totaltracks].
1950 tracks[totaltracks].
1954 sony_toc.first_track_num = mint;
1955 sony_toc.last_track_num = maxt;
1956 /* Disk type of last session wins. For example:
1957 CD-Extra has disk type 0 for the first session, so
1958 a dumb HiFi CD player thinks it is a plain audio CD.
1959 We are interested in the disk type of the last session,
1960 which is 0x20 (XA) for CD-Extra, so we can access the
1962 sony_toc.disk_type = single_toc.disk_type;
1963 sony_toc.sessions = session;
1965 /* don't believe everything :-) */
1967 single_toc.start_track_lba = 0;
1968 sony_toc.start_track_lba =
1969 single_toc.start_track_lba;
1971 if (session > 1 && single_toc.pointb0 == 0xb0 &&
1972 sony_toc.lead_out_start_lba ==
1973 single_toc.lead_out_start_lba) {
1977 /* Let's not get carried away... */
1979 printk("cdu31a: too many sessions: %d\n",
1985 sony_toc.track_entries = totaltracks;
1986 /* add one entry for the LAST track with track number CDROM_LEADOUT */
1987 sony_toc.tracks[totaltracks].address = single_toc.address2;
1988 sony_toc.tracks[totaltracks].control = single_toc.control2;
1989 sony_toc.tracks[totaltracks].track = CDROM_LEADOUT;
1990 sony_toc.tracks[totaltracks].track_start_msf[0] =
1991 sony_toc.lead_out_start_msf[0];
1992 sony_toc.tracks[totaltracks].track_start_msf[1] =
1993 sony_toc.lead_out_start_msf[1];
1994 sony_toc.tracks[totaltracks].track_start_msf[2] =
1995 sony_toc.lead_out_start_msf[2];
2001 ("Disk session %d, start track: %d, stop track: %d\n",
2002 session, single_toc.start_track_lba,
2003 single_toc.lead_out_start_lba);
2007 printk("Leaving sony_get_toc\n");
2013 * Uniform cdrom interface function
2014 * return multisession offset and sector information
2016 static int scd_get_last_session(struct cdrom_device_info *cdi,
2017 struct cdrom_multisession *ms_info)
2019 if (ms_info == NULL)
2025 ms_info->addr_format = CDROM_LBA;
2026 ms_info->addr.lba = sony_toc.start_track_lba;
2027 ms_info->xa_flag = sony_toc.disk_type == SONY_XA_DISK_TYPE ||
2028 sony_toc.disk_type == 0x10 /* CDI */ ;
2034 * Search for a specific track in the table of contents.
2036 static int find_track(int track)
2040 for (i = 0; i <= sony_toc.track_entries; i++) {
2041 if (sony_toc.tracks[i].track == track) {
2051 * Read the subcode and put it in last_sony_subcode for future use.
2053 static int read_subcode(void)
2055 unsigned int res_size;
2058 do_sony_cd_cmd(SONY_REQ_SUBCODE_ADDRESS_CMD,
2060 0, (unsigned char *) &last_sony_subcode, &res_size);
2062 || ((last_sony_subcode.exec_status[0] & 0xf0) == 0x20)) {
2063 printk("Sony CDROM error %s (read_subcode)\n",
2064 translate_error(last_sony_subcode.exec_status[1]));
2068 last_sony_subcode.track_num =
2069 bcd_to_int(last_sony_subcode.track_num);
2070 last_sony_subcode.index_num =
2071 bcd_to_int(last_sony_subcode.index_num);
2072 last_sony_subcode.abs_msf[0] =
2073 bcd_to_int(last_sony_subcode.abs_msf[0]);
2074 last_sony_subcode.abs_msf[1] =
2075 bcd_to_int(last_sony_subcode.abs_msf[1]);
2076 last_sony_subcode.abs_msf[2] =
2077 bcd_to_int(last_sony_subcode.abs_msf[2]);
2079 last_sony_subcode.rel_msf[0] =
2080 bcd_to_int(last_sony_subcode.rel_msf[0]);
2081 last_sony_subcode.rel_msf[1] =
2082 bcd_to_int(last_sony_subcode.rel_msf[1]);
2083 last_sony_subcode.rel_msf[2] =
2084 bcd_to_int(last_sony_subcode.rel_msf[2]);
2089 * Uniform cdrom interface function
2090 * return the media catalog number found on some older audio cds
2093 scd_get_mcn(struct cdrom_device_info *cdi, struct cdrom_mcn *mcn)
2095 unsigned char resbuffer[2 + 14];
2096 unsigned char *mcnp = mcn->medium_catalog_number;
2097 unsigned char *resp = resbuffer + 3;
2098 unsigned int res_size;
2100 memset(mcn->medium_catalog_number, 0, 14);
2101 do_sony_cd_cmd(SONY_REQ_UPC_EAN_CMD,
2102 NULL, 0, resbuffer, &res_size);
2103 if ((res_size < 2) || ((resbuffer[0] & 0xf0) == 0x20));
2105 /* packed bcd to single ASCII digits */
2106 *mcnp++ = (*resp >> 4) + '0';
2107 *mcnp++ = (*resp++ & 0x0f) + '0';
2108 *mcnp++ = (*resp >> 4) + '0';
2109 *mcnp++ = (*resp++ & 0x0f) + '0';
2110 *mcnp++ = (*resp >> 4) + '0';
2111 *mcnp++ = (*resp++ & 0x0f) + '0';
2112 *mcnp++ = (*resp >> 4) + '0';
2113 *mcnp++ = (*resp++ & 0x0f) + '0';
2114 *mcnp++ = (*resp >> 4) + '0';
2115 *mcnp++ = (*resp++ & 0x0f) + '0';
2116 *mcnp++ = (*resp >> 4) + '0';
2117 *mcnp++ = (*resp++ & 0x0f) + '0';
2118 *mcnp++ = (*resp >> 4) + '0';
2126 * Get the subchannel info like the CDROMSUBCHNL command wants to see it. If
2127 * the drive is playing, the subchannel needs to be read (since it would be
2128 * changing). If the drive is paused or completed, the subcode information has
2129 * already been stored, just use that. The ioctl call wants things in decimal
2130 * (not BCD), so all the conversions are done.
2132 static int sony_get_subchnl_info(struct cdrom_subchnl *schi)
2134 /* Get attention stuff */
2135 while (handle_sony_cd_attention());
2138 if (!sony_toc_read) {
2142 switch (sony_audio_status) {
2143 case CDROM_AUDIO_NO_STATUS:
2144 case CDROM_AUDIO_PLAY:
2145 if (read_subcode() < 0) {
2150 case CDROM_AUDIO_PAUSED:
2151 case CDROM_AUDIO_COMPLETED:
2155 case CDROM_AUDIO_NO_STATUS:
2156 schi->cdsc_audiostatus = sony_audio_status;
2160 case CDROM_AUDIO_INVALID:
2161 case CDROM_AUDIO_ERROR:
2166 schi->cdsc_audiostatus = sony_audio_status;
2167 schi->cdsc_adr = last_sony_subcode.address;
2168 schi->cdsc_ctrl = last_sony_subcode.control;
2169 schi->cdsc_trk = last_sony_subcode.track_num;
2170 schi->cdsc_ind = last_sony_subcode.index_num;
2171 if (schi->cdsc_format == CDROM_MSF) {
2172 schi->cdsc_absaddr.msf.minute =
2173 last_sony_subcode.abs_msf[0];
2174 schi->cdsc_absaddr.msf.second =
2175 last_sony_subcode.abs_msf[1];
2176 schi->cdsc_absaddr.msf.frame =
2177 last_sony_subcode.abs_msf[2];
2179 schi->cdsc_reladdr.msf.minute =
2180 last_sony_subcode.rel_msf[0];
2181 schi->cdsc_reladdr.msf.second =
2182 last_sony_subcode.rel_msf[1];
2183 schi->cdsc_reladdr.msf.frame =
2184 last_sony_subcode.rel_msf[2];
2185 } else if (schi->cdsc_format == CDROM_LBA) {
2186 schi->cdsc_absaddr.lba =
2187 msf_to_log(last_sony_subcode.abs_msf);
2188 schi->cdsc_reladdr.lba =
2189 msf_to_log(last_sony_subcode.rel_msf);
2195 /* Get audio data from the drive. This is fairly complex because I
2196 am looking for status and data at the same time, but if I get status
2197 then I just look for data. I need to get the status immediately so
2198 the switch from audio to data tracks will happen quickly. */
2200 read_audio_data(char *buffer, unsigned char res_reg[], int *res_size)
2202 unsigned long retry_count;
2211 /* Wait for the drive to tell us we have something */
2212 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
2213 continue_read_audio_wait:
2214 while (time_before(jiffies, retry_count) && !(is_data_ready())
2215 && !(is_result_ready() || result_read)) {
2216 while (handle_sony_cd_attention());
2220 if (!(is_data_ready())) {
2221 if (is_result_ready() && !result_read) {
2222 get_result(res_reg, res_size);
2224 /* Read block status and continue waiting for data. */
2225 if ((res_reg[0] & 0xf0) == 0x50) {
2227 goto continue_read_audio_wait;
2229 /* Invalid data from the drive. Shut down the operation. */
2230 else if ((res_reg[0] & 0xf0) != 0x20) {
2232 ("CDU31A: Got result that should have been error: %d\n",
2235 res_reg[1] = SONY_BAD_DATA_ERR;
2241 printk("CDU31A timeout out %d\n", __LINE__);
2244 res_reg[1] = SONY_TIMEOUT_OP_ERR;
2251 /* If data block, then get 2340 bytes offset by 12. */
2252 if (sony_raw_data_mode) {
2253 insb(sony_cd_read_reg, buffer + CD_XA_HEAD,
2256 /* Audio gets the whole 2352 bytes. */
2257 insb(sony_cd_read_reg, buffer, CD_FRAMESIZE_RAW);
2260 /* If I haven't already gotten the result, get it now. */
2262 /* Wait for the drive to tell us we have something */
2263 retry_count = jiffies + SONY_JIFFIES_TIMEOUT;
2264 while (time_before(jiffies, retry_count)
2265 && !(is_result_ready())) {
2266 while (handle_sony_cd_attention());
2271 if (!is_result_ready()) {
2273 printk("CDU31A timeout out %d\n",
2277 res_reg[1] = SONY_TIMEOUT_OP_ERR;
2282 get_result(res_reg, res_size);
2286 if ((res_reg[0] & 0xf0) == 0x50) {
2287 if ((res_reg[0] == SONY_NO_CIRC_ERR_BLK_STAT)
2288 || (res_reg[0] == SONY_NO_LECC_ERR_BLK_STAT)
2289 || (res_reg[0] == SONY_RECOV_LECC_ERR_BLK_STAT)
2290 || (res_reg[0] == SONY_NO_ERR_DETECTION_STAT)) {
2291 /* Ok, nothing to do. */
2293 printk("CDU31A: Data block error: 0x%x\n",
2296 res_reg[1] = SONY_BAD_DATA_ERR;
2299 } else if ((res_reg[0] & 0xf0) != 0x20) {
2300 /* The drive gave me bad status, I don't know what to do.
2301 Reset the driver and return an error. */
2302 printk("CDU31A: Invalid block status: 0x%x\n",
2306 res_reg[1] = SONY_BAD_DATA_ERR;
2312 /* Perform a raw data read. This will automatically detect the
2313 track type and read the proper data (audio or data). */
2314 static int read_audio(struct cdrom_read_audio *ra)
2317 unsigned char params[2];
2318 unsigned char res_reg[12];
2319 unsigned int res_size;
2320 unsigned int cframe;
2321 unsigned long flags;
2324 * Make sure no one else is using the driver; wait for them
2325 * to finish if it is so.
2329 while (sony_inuse) {
2330 interruptible_sleep_on(&sony_wait);
2331 if (signal_pending(current)) {
2332 restore_flags(flags);
2337 has_cd_task = current;
2338 restore_flags(flags);
2340 if (!sony_spun_up) {
2344 /* Set the drive to do raw operations. */
2345 params[0] = SONY_SD_DECODE_PARAM;
2346 params[1] = 0x06 | sony_raw_data_mode;
2347 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2348 params, 2, res_reg, &res_size);
2349 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
2350 printk("CDU31A: Unable to set decode params: 0x%2.2x\n",
2355 /* From here down, we have to goto exit_read_audio instead of returning
2356 because the drive parameters have to be set back to data before
2360 if (start_request(ra->addr.lba, ra->nframes)) {
2362 goto exit_read_audio;
2365 /* For every requested frame. */
2367 while (cframe < ra->nframes) {
2368 read_audio_data(audio_buffer, res_reg, &res_size);
2369 if ((res_reg[0] & 0xf0) == 0x20) {
2370 if (res_reg[1] == SONY_BAD_DATA_ERR) {
2372 ("CDU31A: Data error on audio sector %d\n",
2373 ra->addr.lba + cframe);
2374 } else if (res_reg[1] == SONY_ILL_TRACK_R_ERR) {
2375 /* Illegal track type, change track types and start over. */
2376 sony_raw_data_mode =
2377 (sony_raw_data_mode) ? 0 : 1;
2379 /* Set the drive mode. */
2380 params[0] = SONY_SD_DECODE_PARAM;
2381 params[1] = 0x06 | sony_raw_data_mode;
2382 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2384 2, res_reg, &res_size);
2386 || ((res_reg[0] & 0xf0) == 0x20)) {
2388 ("CDU31A: Unable to set decode params: 0x%2.2x\n",
2391 goto exit_read_audio;
2394 /* Restart the request on the current frame. */
2396 (ra->addr.lba + cframe,
2397 ra->nframes - cframe)) {
2399 goto exit_read_audio;
2402 /* Don't go back to the top because don't want to get into
2403 and infinite loop. A lot of code gets duplicated, but
2404 that's no big deal, I don't guess. */
2405 read_audio_data(audio_buffer, res_reg,
2407 if ((res_reg[0] & 0xf0) == 0x20) {
2409 SONY_BAD_DATA_ERR) {
2411 ("CDU31A: Data error on audio sector %d\n",
2416 ("CDU31A: Error reading audio data on sector %d: %s\n",
2417 ra->addr.lba + cframe,
2421 goto exit_read_audio;
2423 } else if (copy_to_user(ra->buf +
2427 CD_FRAMESIZE_RAW)) {
2429 goto exit_read_audio;
2433 ("CDU31A: Error reading audio data on sector %d: %s\n",
2434 ra->addr.lba + cframe,
2435 translate_error(res_reg[1]));
2437 goto exit_read_audio;
2439 } else if (copy_to_user(ra->buf + (CD_FRAMESIZE_RAW * cframe),
2440 (char *)audio_buffer,
2441 CD_FRAMESIZE_RAW)) {
2443 goto exit_read_audio;
2449 get_result(res_reg, &res_size);
2450 if ((res_reg[0] & 0xf0) == 0x20) {
2451 printk("CDU31A: Error return from audio read: %s\n",
2452 translate_error(res_reg[1]));
2454 goto exit_read_audio;
2459 /* Set the drive mode back to the proper one for the disk. */
2460 params[0] = SONY_SD_DECODE_PARAM;
2461 if (!sony_xa_mode) {
2466 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2467 params, 2, res_reg, &res_size);
2468 if ((res_size < 2) || ((res_reg[0] & 0xf0) == 0x20)) {
2469 printk("CDU31A: Unable to reset decode params: 0x%2.2x\n",
2476 wake_up_interruptible(&sony_wait);
2482 do_sony_cd_cmd_chk(const char *name,
2484 unsigned char *params,
2485 unsigned int num_params,
2486 unsigned char *result_buffer, unsigned int *result_size)
2488 do_sony_cd_cmd(cmd, params, num_params, result_buffer,
2490 if ((*result_size < 2) || ((result_buffer[0] & 0xf0) == 0x20)) {
2491 printk("Sony CDROM error %s (CDROM%s)\n",
2492 translate_error(result_buffer[1]), name);
2499 * Uniform cdrom interface function
2502 static int scd_tray_move(struct cdrom_device_info *cdi, int position)
2504 if (position == 1 /* open tray */ ) {
2505 unsigned char res_reg[12];
2506 unsigned int res_size;
2508 do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2510 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
2513 sony_audio_status = CDROM_AUDIO_INVALID;
2514 return do_sony_cd_cmd_chk("EJECT", SONY_EJECT_CMD, NULL, 0,
2515 res_reg, &res_size);
2517 if (0 == scd_spinup())
2524 * The big ugly ioctl handler.
2526 static int scd_audio_ioctl(struct cdrom_device_info *cdi,
2527 unsigned int cmd, void *arg)
2529 unsigned char res_reg[12];
2530 unsigned int res_size;
2531 unsigned char params[7];
2536 case CDROMSTART: /* Spin up the drive */
2537 return do_sony_cd_cmd_chk("START", SONY_SPIN_UP_CMD, NULL,
2538 0, res_reg, &res_size);
2541 case CDROMSTOP: /* Spin down the drive */
2542 do_sony_cd_cmd(SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2546 * Spin the drive down, ignoring the error if the disk was
2547 * already not spinning.
2549 sony_audio_status = CDROM_AUDIO_NO_STATUS;
2550 return do_sony_cd_cmd_chk("STOP", SONY_SPIN_DOWN_CMD, NULL,
2551 0, res_reg, &res_size);
2553 case CDROMPAUSE: /* Pause the drive */
2554 if (do_sony_cd_cmd_chk
2555 ("PAUSE", SONY_AUDIO_STOP_CMD, NULL, 0, res_reg,
2558 /* Get the current position and save it for resuming */
2559 if (read_subcode() < 0) {
2562 cur_pos_msf[0] = last_sony_subcode.abs_msf[0];
2563 cur_pos_msf[1] = last_sony_subcode.abs_msf[1];
2564 cur_pos_msf[2] = last_sony_subcode.abs_msf[2];
2565 sony_audio_status = CDROM_AUDIO_PAUSED;
2569 case CDROMRESUME: /* Start the drive after being paused */
2570 if (sony_audio_status != CDROM_AUDIO_PAUSED) {
2574 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2577 /* Start the drive at the saved position. */
2578 params[1] = int_to_bcd(cur_pos_msf[0]);
2579 params[2] = int_to_bcd(cur_pos_msf[1]);
2580 params[3] = int_to_bcd(cur_pos_msf[2]);
2581 params[4] = int_to_bcd(final_pos_msf[0]);
2582 params[5] = int_to_bcd(final_pos_msf[1]);
2583 params[6] = int_to_bcd(final_pos_msf[2]);
2585 if (do_sony_cd_cmd_chk
2586 ("RESUME", SONY_AUDIO_PLAYBACK_CMD, params, 7, res_reg,
2589 sony_audio_status = CDROM_AUDIO_PLAY;
2592 case CDROMPLAYMSF: /* Play starting at the given MSF address. */
2593 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2596 /* The parameters are given in int, must be converted */
2597 for (i = 1; i < 7; i++) {
2599 int_to_bcd(((unsigned char *) arg)[i - 1]);
2602 if (do_sony_cd_cmd_chk
2603 ("PLAYMSF", SONY_AUDIO_PLAYBACK_CMD, params, 7,
2604 res_reg, &res_size) < 0)
2607 /* Save the final position for pauses and resumes */
2608 final_pos_msf[0] = bcd_to_int(params[4]);
2609 final_pos_msf[1] = bcd_to_int(params[5]);
2610 final_pos_msf[2] = bcd_to_int(params[6]);
2611 sony_audio_status = CDROM_AUDIO_PLAY;
2614 case CDROMREADTOCHDR: /* Read the table of contents header */
2616 struct cdrom_tochdr *hdr;
2619 if (!sony_toc_read) {
2623 hdr = (struct cdrom_tochdr *) arg;
2624 hdr->cdth_trk0 = sony_toc.first_track_num;
2625 hdr->cdth_trk1 = sony_toc.last_track_num;
2629 case CDROMREADTOCENTRY: /* Read a given table of contents entry */
2631 struct cdrom_tocentry *entry;
2633 unsigned char *msf_val = NULL;
2636 if (!sony_toc_read) {
2640 entry = (struct cdrom_tocentry *) arg;
2642 track_idx = find_track(entry->cdte_track);
2643 if (track_idx < 0) {
2648 sony_toc.tracks[track_idx].address;
2650 sony_toc.tracks[track_idx].control;
2652 sony_toc.tracks[track_idx].track_start_msf;
2654 /* Logical buffer address or MSF format requested? */
2655 if (entry->cdte_format == CDROM_LBA) {
2656 entry->cdte_addr.lba = msf_to_log(msf_val);
2657 } else if (entry->cdte_format == CDROM_MSF) {
2658 entry->cdte_addr.msf.minute = *msf_val;
2659 entry->cdte_addr.msf.second =
2661 entry->cdte_addr.msf.frame =
2668 case CDROMPLAYTRKIND: /* Play a track. This currently ignores index. */
2670 struct cdrom_ti *ti = (struct cdrom_ti *) arg;
2674 if (!sony_toc_read) {
2678 if ((ti->cdti_trk0 < sony_toc.first_track_num)
2679 || (ti->cdti_trk0 > sony_toc.last_track_num)
2680 || (ti->cdti_trk1 < ti->cdti_trk0)) {
2684 track_idx = find_track(ti->cdti_trk0);
2685 if (track_idx < 0) {
2689 int_to_bcd(sony_toc.tracks[track_idx].
2690 track_start_msf[0]);
2692 int_to_bcd(sony_toc.tracks[track_idx].
2693 track_start_msf[1]);
2695 int_to_bcd(sony_toc.tracks[track_idx].
2696 track_start_msf[2]);
2699 * If we want to stop after the last track, use the lead-out
2702 if (ti->cdti_trk1 >= sony_toc.last_track_num) {
2703 track_idx = find_track(CDROM_LEADOUT);
2705 track_idx = find_track(ti->cdti_trk1 + 1);
2707 if (track_idx < 0) {
2711 int_to_bcd(sony_toc.tracks[track_idx].
2712 track_start_msf[0]);
2714 int_to_bcd(sony_toc.tracks[track_idx].
2715 track_start_msf[1]);
2717 int_to_bcd(sony_toc.tracks[track_idx].
2718 track_start_msf[2]);
2721 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg,
2724 do_sony_cd_cmd(SONY_AUDIO_PLAYBACK_CMD, params, 7,
2725 res_reg, &res_size);
2728 || ((res_reg[0] & 0xf0) == 0x20)) {
2729 printk("Params: %x %x %x %x %x %x %x\n",
2730 params[0], params[1], params[2],
2731 params[3], params[4], params[5],
2734 ("Sony CDROM error %s (CDROMPLAYTRKIND)\n",
2735 translate_error(res_reg[1]));
2739 /* Save the final position for pauses and resumes */
2740 final_pos_msf[0] = bcd_to_int(params[4]);
2741 final_pos_msf[1] = bcd_to_int(params[5]);
2742 final_pos_msf[2] = bcd_to_int(params[6]);
2743 sony_audio_status = CDROM_AUDIO_PLAY;
2747 case CDROMVOLCTRL: /* Volume control. What volume does this change, anyway? */
2749 struct cdrom_volctrl *volctrl =
2750 (struct cdrom_volctrl *) arg;
2752 params[0] = SONY_SD_AUDIO_VOLUME;
2753 params[1] = volctrl->channel0;
2754 params[2] = volctrl->channel1;
2755 return do_sony_cd_cmd_chk("VOLCTRL",
2756 SONY_SET_DRIVE_PARAM_CMD,
2760 case CDROMSUBCHNL: /* Get subchannel info */
2761 return sony_get_subchnl_info((struct cdrom_subchnl *) arg);
2768 static int scd_dev_ioctl(struct cdrom_device_info *cdi,
2769 unsigned int cmd, unsigned long arg)
2771 void __user *argp = (void __user *)arg;
2775 case CDROMREADAUDIO: /* Read 2352 byte audio tracks and 2340 byte
2778 struct cdrom_read_audio ra;
2782 if (!sony_toc_read) {
2786 if (copy_from_user(&ra, argp, sizeof(ra)))
2789 if (ra.nframes == 0) {
2793 i = verify_area(VERIFY_WRITE, ra.buf,
2794 CD_FRAMESIZE_RAW * ra.nframes);
2798 if (ra.addr_format == CDROM_LBA) {
2800 sony_toc.lead_out_start_lba)
2801 || (ra.addr.lba + ra.nframes >=
2802 sony_toc.lead_out_start_lba)) {
2805 } else if (ra.addr_format == CDROM_MSF) {
2806 if ((ra.addr.msf.minute >= 75)
2807 || (ra.addr.msf.second >= 60)
2808 || (ra.addr.msf.frame >= 75)) {
2812 ra.addr.lba = ((ra.addr.msf.minute * 4500)
2813 + (ra.addr.msf.second * 75)
2814 + ra.addr.msf.frame);
2816 sony_toc.lead_out_start_lba)
2817 || (ra.addr.lba + ra.nframes >=
2818 sony_toc.lead_out_start_lba)) {
2822 /* I know, this can go negative on an unsigned. However,
2823 the first thing done to the data is to add this value,
2824 so this should compensate and allow direct msf access. */
2825 ra.addr.lba -= LOG_START_OFFSET;
2830 return (read_audio(&ra));
2840 static int scd_spinup(void)
2842 unsigned char res_reg[12];
2843 unsigned int res_size;
2849 do_sony_cd_cmd(SONY_SPIN_UP_CMD, NULL, 0, res_reg, &res_size);
2851 /* The drive sometimes returns error 0. I don't know why, but ignore
2852 it. It seems to mean the drive has already done the operation. */
2853 if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
2854 printk("Sony CDROM %s error (scd_open, spin up)\n",
2855 translate_error(res_reg[1]));
2859 do_sony_cd_cmd(SONY_READ_TOC_CMD, NULL, 0, res_reg, &res_size);
2861 /* The drive sometimes returns error 0. I don't know why, but ignore
2862 it. It seems to mean the drive has already done the operation. */
2863 if ((res_size < 2) || ((res_reg[0] != 0) && (res_reg[1] != 0))) {
2864 /* If the drive is already playing, it's ok. */
2865 if ((res_reg[1] == SONY_AUDIO_PLAYING_ERR)
2866 || (res_reg[1] == 0)) {
2870 /* If the drive says it is not spun up (even though we just did it!)
2871 then retry the operation at least a few times. */
2872 if ((res_reg[1] == SONY_NOT_SPIN_ERR)
2873 && (num_spin_ups < MAX_CDU31A_RETRIES)) {
2875 goto respinup_on_open;
2878 printk("Sony CDROM error %s (scd_open, read toc)\n",
2879 translate_error(res_reg[1]));
2880 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
2888 * Open the drive for operations. Spin the drive up and read the table of
2889 * contents if these have not already been done.
2891 static int scd_open(struct cdrom_device_info *cdi, int purpose)
2893 unsigned char res_reg[12];
2894 unsigned int res_size;
2895 unsigned char params[2];
2898 /* Open for IOCTLs only - no media check */
2903 if (sony_usage == 0) {
2904 if (scd_spinup() != 0)
2907 if (!sony_toc_read) {
2908 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0,
2909 res_reg, &res_size);
2913 /* For XA on the CDU31A only, we have to do special reads.
2914 The CDU33A handles XA automagically. */
2915 /* if ( (sony_toc.disk_type == SONY_XA_DISK_TYPE) */
2916 if ((sony_toc.disk_type != 0x00)
2917 && (!is_double_speed)) {
2918 params[0] = SONY_SD_DECODE_PARAM;
2920 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2921 params, 2, res_reg, &res_size);
2923 || ((res_reg[0] & 0xf0) == 0x20)) {
2925 ("CDU31A: Unable to set XA params: 0x%2.2x\n",
2930 /* A non-XA disk. Set the parms back if necessary. */
2931 else if (sony_xa_mode) {
2932 params[0] = SONY_SD_DECODE_PARAM;
2934 do_sony_cd_cmd(SONY_SET_DRIVE_PARAM_CMD,
2935 params, 2, res_reg, &res_size);
2937 || ((res_reg[0] & 0xf0) == 0x20)) {
2939 ("CDU31A: Unable to reset XA params: 0x%2.2x\n",
2955 * Close the drive. Spin it down if no task is using it. The spin
2956 * down will fail if playing audio, so audio play is OK.
2958 static void scd_release(struct cdrom_device_info *cdi)
2960 if (sony_usage == 1) {
2961 unsigned char res_reg[12];
2962 unsigned int res_size;
2964 do_sony_cd_cmd(SONY_SPIN_DOWN_CMD, NULL, 0, res_reg,
2972 static struct cdrom_device_ops scd_dops = {
2974 .release = scd_release,
2975 .drive_status = scd_drive_status,
2976 .media_changed = scd_media_changed,
2977 .tray_move = scd_tray_move,
2978 .lock_door = scd_lock_door,
2979 .select_speed = scd_select_speed,
2980 .get_last_session = scd_get_last_session,
2981 .get_mcn = scd_get_mcn,
2983 .audio_ioctl = scd_audio_ioctl,
2984 .dev_ioctl = scd_dev_ioctl,
2985 .capability = CDC_OPEN_TRAY | CDC_CLOSE_TRAY | CDC_LOCK |
2986 CDC_SELECT_SPEED | CDC_MULTI_SESSION |
2987 CDC_MCN | CDC_MEDIA_CHANGED | CDC_PLAY_AUDIO |
2988 CDC_RESET | CDC_IOCTLS | CDC_DRIVE_STATUS,
2992 static struct cdrom_device_info scd_info = {
2999 static int scd_block_open(struct inode *inode, struct file *file)
3001 return cdrom_open(&scd_info, inode, file);
3004 static int scd_block_release(struct inode *inode, struct file *file)
3006 return cdrom_release(&scd_info, file);
3009 static int scd_block_ioctl(struct inode *inode, struct file *file,
3010 unsigned cmd, unsigned long arg)
3012 /* The eject and close commands should be handled by Uniform CD-ROM
3013 * driver - but I always got hard lockup instead of eject
3014 * until I put this here.
3018 scd_lock_door(&scd_info, 0);
3019 return scd_tray_move(&scd_info, 1);
3020 case CDROMCLOSETRAY:
3021 return scd_tray_move(&scd_info, 0);
3023 return cdrom_ioctl(file, &scd_info, inode, cmd, arg);
3027 static int scd_block_media_changed(struct gendisk *disk)
3029 return cdrom_media_changed(&scd_info);
3032 struct block_device_operations scd_bdops =
3034 .owner = THIS_MODULE,
3035 .open = scd_block_open,
3036 .release = scd_block_release,
3037 .ioctl = scd_block_ioctl,
3038 .media_changed = scd_block_media_changed,
3041 static struct gendisk *scd_gendisk;
3043 /* The different types of disc loading mechanisms supported */
3044 static char *load_mech[] __initdata =
3045 { "caddy", "tray", "pop-up", "unknown" };
3048 get_drive_configuration(unsigned short base_io,
3049 unsigned char res_reg[], unsigned int *res_size)
3051 unsigned long retry_count;
3054 if (!request_region(base_io, 4, "cdu31a"))
3057 /* Set the base address */
3058 cdu31a_port = base_io;
3060 /* Set up all the register locations */
3061 sony_cd_cmd_reg = cdu31a_port + SONY_CMD_REG_OFFSET;
3062 sony_cd_param_reg = cdu31a_port + SONY_PARAM_REG_OFFSET;
3063 sony_cd_write_reg = cdu31a_port + SONY_WRITE_REG_OFFSET;
3064 sony_cd_control_reg = cdu31a_port + SONY_CONTROL_REG_OFFSET;
3065 sony_cd_status_reg = cdu31a_port + SONY_STATUS_REG_OFFSET;
3066 sony_cd_result_reg = cdu31a_port + SONY_RESULT_REG_OFFSET;
3067 sony_cd_read_reg = cdu31a_port + SONY_READ_REG_OFFSET;
3068 sony_cd_fifost_reg = cdu31a_port + SONY_FIFOST_REG_OFFSET;
3071 * Check to see if anything exists at the status register location.
3072 * I don't know if this is a good way to check, but it seems to work
3075 if (read_status_register() != 0xff) {
3077 * Reset the drive and wait for attention from it (to say it's reset).
3078 * If you don't wait, the next operation will probably fail.
3081 retry_count = jiffies + SONY_RESET_TIMEOUT;
3082 while (time_before(jiffies, retry_count)
3083 && (!is_attention())) {
3088 /* If attention is never seen probably not a CDU31a present */
3089 if (!is_attention()) {
3096 * Get the drive configuration.
3098 do_sony_cd_cmd(SONY_REQ_DRIVE_CONFIG_CMD,
3100 0, (unsigned char *) res_reg, res_size);
3101 if (*res_size <= 2 || (res_reg[0] & 0xf0) != 0)
3106 /* Return an error */
3109 release_region(cdu31a_port, 4);
3116 * Set up base I/O and interrupts, called from main.c.
3120 static int __init cdu31a_setup(char *strings)
3124 (void) get_options(strings, ARRAY_SIZE(ints), ints);
3127 cdu31a_port = ints[1];
3130 cdu31a_irq = ints[2];
3132 if ((strings != NULL) && (*strings != '\0')) {
3133 if (strcmp(strings, "PAS") == 0) {
3136 printk("CDU31A: Unknown interface type: %s\n",
3144 __setup("cdu31a=", cdu31a_setup);
3149 * Initialize the driver.
3151 int __init cdu31a_init(void)
3153 struct s_sony_drive_config drive_config;
3154 struct gendisk *disk;
3156 unsigned int res_size;
3163 * According to Alex Freed (freed@europa.orion.adobe.com), this is
3164 * required for the Fusion CD-16 package. If the sound driver is
3165 * loaded, it should work fine, but just in case...
3167 * The following turn on the CD-ROM interface for a Fusion CD-16.
3169 if (sony_pas_init) {
3174 /* Setting the base I/O address to 0xffff will disable it. */
3175 if (cdu31a_port == 0xffff)
3178 if (cdu31a_port != 0) {
3179 /* Need IRQ 0 because we can't sleep here. */
3180 tmp_irq = cdu31a_irq;
3182 if (!get_drive_configuration(cdu31a_port,
3183 drive_config.exec_status,
3186 cdu31a_irq = tmp_irq;
3189 for (i = 0; cdu31a_addresses[i].base; i++) {
3190 if (get_drive_configuration(cdu31a_addresses[i].base,
3191 drive_config.exec_status,
3193 cdu31a_irq = cdu31a_addresses[i].int_num;
3201 if (register_blkdev(MAJOR_NR, "cdu31a"))
3204 disk = alloc_disk(1);
3207 disk->major = MAJOR_NR;
3208 disk->first_minor = 0;
3209 sprintf(disk->disk_name, "cdu31a");
3210 disk->fops = &scd_bdops;
3211 disk->flags = GENHD_FL_CD;
3213 if (SONY_HWC_DOUBLE_SPEED(drive_config))
3214 is_double_speed = 1;
3216 tmp_irq = cdu31a_irq; /* Need IRQ 0 because we can't sleep here. */
3219 sony_speed = is_double_speed; /* Set 2X drives to 2X by default */
3220 set_drive_params(sony_speed);
3222 cdu31a_irq = tmp_irq;
3224 if (cdu31a_irq > 0) {
3226 (cdu31a_irq, cdu31a_interrupt, SA_INTERRUPT,
3229 ("Unable to grab IRQ%d for the CDU31A driver\n",
3235 sprintf(msg, "Sony I/F CDROM : %8.8s %16.16s %8.8s\n",
3236 drive_config.vendor_id,
3237 drive_config.product_id,
3238 drive_config.product_rev_level);
3239 sprintf(buf, " Capabilities: %s",
3240 load_mech[SONY_HWC_GET_LOAD_MECH(drive_config)]);
3242 if (SONY_HWC_AUDIO_PLAYBACK(drive_config))
3243 strcat(msg, ", audio");
3245 deficiency |= CDC_PLAY_AUDIO;
3246 if (SONY_HWC_EJECT(drive_config))
3247 strcat(msg, ", eject");
3249 deficiency |= CDC_OPEN_TRAY;
3250 if (SONY_HWC_LED_SUPPORT(drive_config))
3251 strcat(msg, ", LED");
3252 if (SONY_HWC_ELECTRIC_VOLUME(drive_config))
3253 strcat(msg, ", elec. Vol");
3254 if (SONY_HWC_ELECTRIC_VOLUME_CTL(drive_config))
3255 strcat(msg, ", sep. Vol");
3256 if (is_double_speed)
3257 strcat(msg, ", double speed");
3259 deficiency |= CDC_SELECT_SPEED;
3260 if (cdu31a_irq > 0) {
3261 sprintf(buf, ", irq %d", cdu31a_irq);
3267 cdu31a_queue = blk_init_queue(do_cdu31a_request, &cdu31a_lock);
3270 blk_queue_hardsect_size(cdu31a_queue, 2048);
3272 init_timer(&cdu31a_abort_timer);
3273 cdu31a_abort_timer.function = handle_abort_timeout;
3275 scd_info.mask = deficiency;
3277 if (register_cdrom(&scd_info))
3279 disk->queue = cdu31a_queue;
3286 blk_cleanup_queue(cdu31a_queue);
3289 free_irq(cdu31a_irq, NULL);
3290 printk("Unable to register CDU-31a with Uniform cdrom driver\n");
3293 if (unregister_blkdev(MAJOR_NR, "cdu31a")) {
3294 printk("Can't unregister block device for cdu31a\n");
3297 release_region(cdu31a_port, 4);
3303 void __exit cdu31a_exit(void)
3305 del_gendisk(scd_gendisk);
3306 put_disk(scd_gendisk);
3307 if (unregister_cdrom(&scd_info)) {
3309 ("Can't unregister cdu31a from Uniform cdrom driver\n");
3312 if ((unregister_blkdev(MAJOR_NR, "cdu31a") == -EINVAL)) {
3313 printk("Can't unregister cdu31a\n");
3317 blk_cleanup_queue(cdu31a_queue);
3320 free_irq(cdu31a_irq, NULL);
3322 release_region(cdu31a_port, 4);
3323 printk(KERN_INFO "cdu31a module released.\n");
3327 module_init(cdu31a_init);
3329 module_exit(cdu31a_exit);
3331 MODULE_LICENSE("GPL");
3332 MODULE_ALIAS_BLOCKDEV_MAJOR(CDU31A_CDROM_MAJOR);