From 7cad6f7211281c8be1e92f85b6181c3d9d2665e7 Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <tschwinge@gnu.org>
Date: Sun, 8 Oct 2006 13:47:28 +0000
Subject: 2006-10-08 Thomas Schwinge <tschwinge@gnu.org>
* linux/dev/drivers/scsi/sr.c: Move file...
* linux/src/drivers/scsi/sr.c: ... here.
---
linux/dev/drivers/scsi/sr.c | 1290 -------------------------------------------
1 file changed, 1290 deletions(-)
delete mode 100644 linux/dev/drivers/scsi/sr.c
(limited to 'linux/dev')
diff --git a/linux/dev/drivers/scsi/sr.c b/linux/dev/drivers/scsi/sr.c
deleted file mode 100644
index 8f44246..0000000
--- a/linux/dev/drivers/scsi/sr.c
+++ /dev/null
@@ -1,1290 +0,0 @@
-/*
- * sr.c Copyright (C) 1992 David Giller
- * Copyright (C) 1993, 1994, 1995 Eric Youngdale
- *
- * adapted from:
- * sd.c Copyright (C) 1992 Drew Eckhardt
- * Linux scsi disk driver by
- * Drew Eckhardt <drew@colorado.edu>
- *
- * Modified by Eric Youngdale ericy@cais.com to
- * add scatter-gather, multiple outstanding request, and other
- * enhancements.
- *
- * Modified by Eric Youngdale eric@aib.com to support loadable
- * low-level scsi drivers.
- *
- * Modified by Thomas Quinot thomas@melchior.cuivre.fdn.fr to
- * provide auto-eject.
- *
- */
-
-#include <linux/module.h>
-
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/cdrom.h>
-#include <linux/interrupt.h>
-#include <asm/system.h>
-
-#define MAJOR_NR SCSI_CDROM_MAJOR
-#include <linux/blk.h>
-#include "scsi.h"
-#include "hosts.h"
-#include "sr.h"
-#include <scsi/scsi_ioctl.h> /* For the door lock/unlock commands */
-#include "constants.h"
-
-#define MAX_RETRIES 3
-#define SR_TIMEOUT (30 * HZ)
-
-static int sr_init(void);
-static void sr_finish(void);
-static int sr_attach(Scsi_Device *);
-static int sr_detect(Scsi_Device *);
-static void sr_detach(Scsi_Device *);
-
-struct Scsi_Device_Template sr_template = {NULL, "cdrom", "sr", NULL, TYPE_ROM,
- SCSI_CDROM_MAJOR, 0, 0, 0, 1,
- sr_detect, sr_init,
- sr_finish, sr_attach, sr_detach};
-
-Scsi_CD * scsi_CDs = NULL;
-static int * sr_sizes;
-
-static int * sr_blocksizes;
-
-static int sr_open(struct inode *, struct file *);
-void get_sectorsize(int);
-void sr_photocd(struct inode *);
-
-extern int sr_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
-
-void requeue_sr_request (Scsi_Cmnd * SCpnt);
-static int check_cdrom_media_change(kdev_t);
-
-static void sr_release(struct inode * inode, struct file * file)
-{
- sync_dev(inode->i_rdev);
- if(! --scsi_CDs[MINOR(inode->i_rdev)].device->access_count)
- {
- sr_ioctl(inode, NULL, SCSI_IOCTL_DOORUNLOCK, 0);
- if (scsi_CDs[MINOR(inode->i_rdev)].auto_eject)
- sr_ioctl(inode, NULL, CDROMEJECT, 0);
- }
- if (scsi_CDs[MINOR(inode->i_rdev)].device->host->hostt->usage_count)
- (*scsi_CDs[MINOR(inode->i_rdev)].device->host->hostt->usage_count)--;
- if(sr_template.usage_count) (*sr_template.usage_count)--;
-}
-
-static struct file_operations sr_fops =
-{
- NULL, /* lseek - default */
- block_read, /* read - general block-dev read */
- block_write, /* write - general block-dev write */
- NULL, /* readdir - bad */
- NULL, /* select */
- sr_ioctl, /* ioctl */
- NULL, /* mmap */
- sr_open, /* special open code */
- sr_release, /* release */
- NULL, /* fsync */
- NULL, /* fasync */
- check_cdrom_media_change, /* Disk change */
- NULL /* revalidate */
-};
-
-/*
- * This function checks to see if the media has been changed in the
- * CDROM drive. It is possible that we have already sensed a change,
- * or the drive may have sensed one and not yet reported it. We must
- * be ready for either case. This function always reports the current
- * value of the changed bit. If flag is 0, then the changed bit is reset.
- * This function could be done as an ioctl, but we would need to have
- * an inode for that to work, and we do not always have one.
- */
-
-int check_cdrom_media_change(kdev_t full_dev){
- int retval, target;
- struct inode inode;
- int flag = 0;
-
- target = MINOR(full_dev);
-
- if (target >= sr_template.nr_dev) {
- printk("CD-ROM request error: invalid device.\n");
- return 0;
- };
-
- inode.i_rdev = full_dev; /* This is all we really need here */
- retval = sr_ioctl(&inode, NULL, SCSI_IOCTL_TEST_UNIT_READY, 0);
-
- if(retval){ /* Unable to test, unit probably not ready. This usually
- * means there is no disc in the drive. Mark as changed,
- * and we will figure it out later once the drive is
- * available again. */
-
- scsi_CDs[target].device->changed = 1;
- return 1; /* This will force a flush, if called from
- * check_disk_change */
- };
-
- retval = scsi_CDs[target].device->changed;
- if(!flag) {
- scsi_CDs[target].device->changed = 0;
- /* If the disk changed, the capacity will now be different,
- * so we force a re-read of this information */
- if (retval) scsi_CDs[target].needs_sector_size = 1;
- };
- return retval;
-}
-
-/*
- * rw_intr is the interrupt routine for the device driver. It will be notified on the
- * end of a SCSI read / write, and will take on of several actions based on success or failure.
- */
-
-static void rw_intr (Scsi_Cmnd * SCpnt)
-{
- int result = SCpnt->result;
- int this_count = SCpnt->this_count;
- int good_sectors = (result == 0 ? this_count : 0);
- int block_sectors = 0;
-
-#ifdef DEBUG
- printk("sr.c done: %x %x\n",result, SCpnt->request.bh->b_data);
-#endif
- /*
- Handle MEDIUM ERRORs or VOLUME OVERFLOWs that indicate partial success.
- Since this is a relatively rare error condition, no care is taken to
- avoid unnecessary additional work such as memcpy's that could be avoided.
- */
-
- if (driver_byte(result) != 0 && /* An error occurred */
- SCpnt->sense_buffer[0] == 0xF0 && /* Sense data is valid */
- (SCpnt->sense_buffer[2] == MEDIUM_ERROR ||
- SCpnt->sense_buffer[2] == VOLUME_OVERFLOW ||
- SCpnt->sense_buffer[2] == ILLEGAL_REQUEST))
- {
- long error_sector = (SCpnt->sense_buffer[3] << 24) |
- (SCpnt->sense_buffer[4] << 16) |
- (SCpnt->sense_buffer[5] << 8) |
- SCpnt->sense_buffer[6];
- int device_nr = DEVICE_NR(SCpnt->request.rq_dev);
- if (SCpnt->request.bh != NULL)
- block_sectors = SCpnt->request.bh->b_size >> 9;
- if (block_sectors < 4) block_sectors = 4;
- if (scsi_CDs[device_nr].sector_size == 2048)
- error_sector <<= 2;
- error_sector &= ~ (block_sectors - 1);
- good_sectors = error_sector - SCpnt->request.sector;
- if (good_sectors < 0 || good_sectors >= this_count)
- good_sectors = 0;
- /*
- The SCSI specification allows for the value returned by READ
- CAPACITY to be up to 75 2K sectors past the last readable
- block. Therefore, if we hit a medium error within the last
- 75 2K sectors, we decrease the saved size value.
- */
- if ((error_sector >> 1) < sr_sizes[device_nr] &&
- scsi_CDs[device_nr].capacity - error_sector < 4*75)
- sr_sizes[device_nr] = error_sector >> 1;
- }
-
- if (good_sectors > 0)
- { /* Some sectors were read successfully. */
- if (SCpnt->use_sg == 0) {
- if (SCpnt->buffer != SCpnt->request.buffer)
- {
- int offset;
- offset = (SCpnt->request.sector % 4) << 9;
- memcpy((char *)SCpnt->request.buffer,
- (char *)SCpnt->buffer + offset,
- good_sectors << 9);
- /* Even though we are not using scatter-gather, we look
- * ahead and see if there is a linked request for the
- * other half of this buffer. If there is, then satisfy
- * it. */
- if((offset == 0) && good_sectors == 2 &&
- SCpnt->request.nr_sectors > good_sectors &&
- SCpnt->request.bh &&
- SCpnt->request.bh->b_reqnext &&
- SCpnt->request.bh->b_reqnext->b_size == 1024) {
- memcpy((char *)SCpnt->request.bh->b_reqnext->b_data,
- (char *)SCpnt->buffer + 1024,
- 1024);
- good_sectors += 2;
- };
-
- scsi_free(SCpnt->buffer, 2048);
- }
- } else {
- struct scatterlist * sgpnt;
- int i;
- sgpnt = (struct scatterlist *) SCpnt->buffer;
- for(i=0; i<SCpnt->use_sg; i++) {
- if (sgpnt[i].alt_address) {
- if (sgpnt[i].alt_address != sgpnt[i].address) {
- memcpy(sgpnt[i].alt_address, sgpnt[i].address, sgpnt[i].length);
- };
- scsi_free(sgpnt[i].address, sgpnt[i].length);
- };
- };
- scsi_free(SCpnt->buffer, SCpnt->sglist_len); /* Free list of scatter-gather pointers */
- if(SCpnt->request.sector % 4) good_sectors -= 2;
- /* See if there is a padding record at the end that needs to be removed */
- if(good_sectors > SCpnt->request.nr_sectors)
- good_sectors -= 2;
- };
-
-#ifdef DEBUG
- printk("(%x %x %x) ",SCpnt->request.bh, SCpnt->request.nr_sectors,
- good_sectors);
-#endif
- if (SCpnt->request.nr_sectors > this_count)
- {
- SCpnt->request.errors = 0;
- if (!SCpnt->request.bh)
- panic("sr.c: linked page request (%lx %x)",
- SCpnt->request.sector, this_count);
- }
-
- SCpnt = end_scsi_request(SCpnt, 1, good_sectors); /* All done */
- if (result == 0)
- {
- requeue_sr_request(SCpnt);
- return;
- }
- }
-
- if (good_sectors == 0) {
- /* We only come through here if no sectors were read successfully. */
-
- /* Free up any indirection buffers we allocated for DMA purposes. */
- if (SCpnt->use_sg) {
- struct scatterlist * sgpnt;
- int i;
- sgpnt = (struct scatterlist *) SCpnt->buffer;
- for(i=0; i<SCpnt->use_sg; i++) {
- if (sgpnt[i].alt_address) {
- scsi_free(sgpnt[i].address, sgpnt[i].length);
- }
- }
- scsi_free(SCpnt->buffer, SCpnt->sglist_len); /* Free list of scatter-gather pointers */
- } else {
- if (SCpnt->buffer != SCpnt->request.buffer)
- scsi_free(SCpnt->buffer, SCpnt->bufflen);
- }
-
- }
-
- if (driver_byte(result) != 0) {
- if ((SCpnt->sense_buffer[0] & 0x7f) == 0x70) {
- if ((SCpnt->sense_buffer[2] & 0xf) == UNIT_ATTENTION) {
- /* detected disc change. set a bit and quietly refuse
- * further access. */
-
- scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].device->changed = 1;
- SCpnt = end_scsi_request(SCpnt, 0, this_count);
- requeue_sr_request(SCpnt);
- return;
- }
- }
-
- if (SCpnt->sense_buffer[2] == ILLEGAL_REQUEST) {
- printk("CD-ROM error: ");
- print_sense("sr", SCpnt);
- printk("command was: ");
- print_command(SCpnt->cmnd);
- if (scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].ten) {
- scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].ten = 0;
- requeue_sr_request(SCpnt);
- result = 0;
- return;
- } else {
- SCpnt = end_scsi_request(SCpnt, 0, this_count);
- requeue_sr_request(SCpnt); /* Do next request */
- return;
- }
-
- }
-
- if (SCpnt->sense_buffer[2] == NOT_READY) {
- printk("CD-ROM not ready. Make sure you have a disc in the drive.\n");
- SCpnt = end_scsi_request(SCpnt, 0, this_count);
- requeue_sr_request(SCpnt); /* Do next request */
- return;
- }
-
- if (SCpnt->sense_buffer[2] == MEDIUM_ERROR) {
- printk("scsi%d: MEDIUM ERROR on "
- "channel %d, id %d, lun %d, CDB: ",
- SCpnt->host->host_no, (int) SCpnt->channel,
- (int) SCpnt->target, (int) SCpnt->lun);
- print_command(SCpnt->cmnd);
- print_sense("sr", SCpnt);
- SCpnt = end_scsi_request(SCpnt, 0, block_sectors);
- requeue_sr_request(SCpnt);
- return;
- }
-
- if (SCpnt->sense_buffer[2] == VOLUME_OVERFLOW) {
- printk("scsi%d: VOLUME OVERFLOW on "
- "channel %d, id %d, lun %d, CDB: ",
- SCpnt->host->host_no, (int) SCpnt->channel,
- (int) SCpnt->target, (int) SCpnt->lun);
- print_command(SCpnt->cmnd);
- print_sense("sr", SCpnt);
- SCpnt = end_scsi_request(SCpnt, 0, block_sectors);
- requeue_sr_request(SCpnt);
- return;
- }
- }
-
- /* We only get this far if we have an error we have not recognized */
- if(result) {
- printk("SCSI CD error : host %d id %d lun %d return code = %03x\n",
- scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].device->host->host_no,
- scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].device->id,
- scsi_CDs[DEVICE_NR(SCpnt->request.rq_dev)].device->lun,
- result);
-
- if (status_byte(result) == CHECK_CONDITION)
- print_sense("sr", SCpnt);
-
- SCpnt = end_scsi_request(SCpnt, 0, SCpnt->request.current_nr_sectors);
- requeue_sr_request(SCpnt);
- }
-}
-
-/*
- * Here I tried to implement support for multisession-CD's
- *
- * Much of this has do be done with vendor-specific SCSI-commands, because
- * multisession is newer than the SCSI-II standard.
- * So I have to complete it step by step. Useful information is welcome.
- *
- * Actually works:
- * - NEC: Detection and support of multisession CD's. Special handling
- * for XA-disks is not necessary.
- *
- * - TOSHIBA: setting density is done here now, mounting PhotoCD's should
- * work now without running the program "set_density"
- * Multisession CD's are supported too.
- *
- * Gerd Knorr <kraxel@cs.tu-berlin.de>
- */
-/*
- * 19950704 operator@melchior.cuivre.fdn.fr (Thomas Quinot)
- *
- * - SONY: Same as Nec.
- *
- * - PIONEER: works with SONY code (may be others too ?)
- */
-
-void sr_photocd(struct inode *inode)
-{
- unsigned long sector,min,sec,frame;
- unsigned char buf[40]; /* the buffer for the ioctl */
- unsigned char *cmd; /* the scsi-command */
- unsigned char *send; /* the data we send to the drive ... */
- unsigned char *rec; /* ... and get back */
- int rc,is_xa,no_multi;
-
- if (scsi_CDs[MINOR(inode->i_rdev)].xa_flags & 0x02) {
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: CDROM and/or driver do not support multisession CD's");
-#endif
- return;
- }
-
- if (!suser()) {
- /* I'm not the superuser, so SCSI_IOCTL_SEND_COMMAND isn't allowed
- * for me. That's why mpcd_sector will be initialized with zero,
- * because I'm not able to get the right value. Necessary only if
- * access_count is 1, else no disk change happened since the last
- * call of this function and we can keep the old value.
- */
- if (1 == scsi_CDs[MINOR(inode->i_rdev)].device->access_count) {
- scsi_CDs[MINOR(inode->i_rdev)].mpcd_sector = 0;
- scsi_CDs[MINOR(inode->i_rdev)].xa_flags &= ~0x01;
- }
- return;
- }
-
- sector = 0;
- is_xa = 0;
- no_multi = 0;
- cmd = rec = &buf[8];
-
- switch(scsi_CDs[MINOR(inode->i_rdev)].device->manufacturer) {
-
- case SCSI_MAN_NEC:
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: use NEC code\n");
-#endif
- memset(buf,0,40);
- *((unsigned int*)buf) = 0x0; /* we send nothing... */
- *((unsigned int*)buf+1) = 0x16; /* and receive 0x16 bytes */
- cmd[0] = 0xde;
- cmd[1] = 0x03;
- cmd[2] = 0xb0;
- rc = kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_SEND_COMMAND, buf);
- if (rc != 0) {
- if (rc != 0x28000002) /* drop "not ready" */
- printk(KERN_WARNING"sr_photocd: ioctl error (NEC): 0x%x\n",rc);
- break;
- }
- if (rec[14] != 0 && rec[14] != 0xb0) {
- printk(KERN_INFO"sr_photocd: (NEC) Hmm, seems the CDROM doesn't support multisession CD's\n");
- no_multi = 1;
- break;
- }
- min = (unsigned long) rec[15]/16*10 + (unsigned long) rec[15]%16;
- sec = (unsigned long) rec[16]/16*10 + (unsigned long) rec[16]%16;
- frame = (unsigned long) rec[17]/16*10 + (unsigned long) rec[17]%16;
- sector = min*CD_SECS*CD_FRAMES + sec*CD_FRAMES + frame;
- is_xa = (rec[14] == 0xb0);
-#ifdef DEBUG
- if (sector) {
- printk(KERN_DEBUG "sr_photocd: multisession CD detected. start: %lu\n",sector);
- }
-#endif
- break;
-
- case SCSI_MAN_TOSHIBA:
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: use TOSHIBA code\n");
-#endif
-
- /* we request some disc information (is it a XA-CD ?,
- * where starts the last session ?) */
- memset(buf,0,40);
- *((unsigned int*)buf) = (unsigned int) 0;
- *((unsigned int*)buf+1) = (unsigned int) 4; /* receive 4 bytes */
- cmd[0] = (unsigned char) 0x00c7;
- cmd[1] = (unsigned char) 3;
- rc = kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_SEND_COMMAND, buf);
- if (rc != 0) {
- if (rc == 0x28000002) {
- /* Got a "not ready" - error. No chance to find out if this is
- * because there is no CD in the drive or because the drive
- * don't knows multisession CD's. So I need to do an extra
- * check... */
- if (!kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_TEST_UNIT_READY, NULL)) {
- printk(KERN_INFO "sr_photocd: (TOSHIBA) Hmm, seems the CDROM doesn't support multisession CD's\n");
- no_multi = 1;
- }
- } else
- printk(KERN_INFO"sr_photocd: ioctl error (TOSHIBA #1): 0x%x\n",rc);
- break; /* if the first ioctl fails, we don't call the second one */
- }
- is_xa = (rec[0] == 0x20);
- min = (unsigned long) rec[1]/16*10 + (unsigned long) rec[1]%16;
- sec = (unsigned long) rec[2]/16*10 + (unsigned long) rec[2]%16;
- frame = (unsigned long) rec[3]/16*10 + (unsigned long) rec[3]%16;
- sector = min*CD_SECS*CD_FRAMES + sec*CD_FRAMES + frame;
- if (sector) {
- sector -= CD_BLOCK_OFFSET;
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: multisession CD detected: start: %lu\n",sector);
-#endif
- }
-
- /* now we do a get_density... */
- memset(buf,0,40);
- *((unsigned int*)buf) = (unsigned int) 0;
- *((unsigned int*)buf+1) = (unsigned int) 12;
- cmd[0] = (unsigned char) MODE_SENSE;
- cmd[2] = (unsigned char) 1;
- cmd[4] = (unsigned char) 12;
- rc = kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_SEND_COMMAND, buf);
- if (rc != 0) {
- printk(KERN_WARNING "sr_photocd: ioctl error (TOSHIBA #2): 0x%x\n",rc);
- break;
- }
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: get_density: 0x%x\n",rec[4]);
-#endif
-
- /* ...and only if necessary a set_density */
- if ((rec[4] != 0x81 && is_xa) || (rec[4] != 0 && !is_xa)) {
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: doing set_density\n");
-#endif
- memset(buf,0,40);
- *((unsigned int*)buf) = (unsigned int) 12; /* send 12 bytes */
- *((unsigned int*)buf+1) = (unsigned int) 0;
- cmd[0] = (unsigned char) MODE_SELECT;
- cmd[1] = (unsigned char) (1 << 4);
- cmd[4] = (unsigned char) 12;
- send = &cmd[6]; /* this is a 6-Byte command */
- send[ 3] = (unsigned char) 0x08; /* data for cmd */
- /* density 0x81 for XA, 0 else */
- send[ 4] = (is_xa) ?
- (unsigned char) 0x81 : (unsigned char) 0;
- send[10] = (unsigned char) 0x08;
- rc = kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_SEND_COMMAND, buf);
- if (rc != 0) {
- printk(KERN_WARNING "sr_photocd: ioctl error (TOSHIBA #3): 0x%x\n",rc);
- }
- /* The set_density command may have changed the
- * sector size or capacity. */
- scsi_CDs[MINOR(inode->i_rdev)].needs_sector_size = 1;
- }
- break;
-
- case SCSI_MAN_SONY: /* Thomas QUINOT <thomas@melchior.cuivre.fdn.fr> */
- case SCSI_MAN_PIONEER:
- case SCSI_MAN_UNKNOWN:
-#ifdef DEBUG
- printk(KERN_DEBUG "sr_photocd: use SONY/PIONEER code\n");
-#endif
- get_sectorsize(MINOR(inode->i_rdev)); /* spinup (avoid timeout) */
- memset(buf,0,40);
- *((unsigned int*)buf) = 0x0; /* we send nothing... */
- *((unsigned int*)buf+1) = 0x0c; /* and receive 0x0c bytes */
- cmd[0] = READ_TOC;
- cmd[8] = 0x0c;
- cmd[9] = 0x40;
- rc = kernel_scsi_ioctl(scsi_CDs[MINOR(inode->i_rdev)].device,
- SCSI_IOCTL_SEND_COMMAND, buf);
-
- if (rc != 0) {
- if (rc != 0x28000002) /* drop "not ready" */
- printk(KERN_WARNING "sr_photocd: ioctl error (SONY/PIONEER): 0x%x\n",rc);
- break;
- }
- if ((rec[0] << 8) + rec[1] < 0x0a) {
- printk(KERN_INFO "sr_photocd: (SONY/PIONEER) Hmm, seems the CDROM doesn't support multisession CD's\n");
- no_multi = 1;
- break;
- }
- sector = rec[11] + (rec[10] << 8) + (rec[9] << 16) + (rec[8] << 24);
- is_xa = !!sector;
-#ifdef DEBUG
- if (sector)
- printk (KERN_DEBUG "sr_photocd: multisession CD detected. start: %lu\n",sector);
-#endif
- break;
-
- case SCSI_MAN_NEC_OLDCDR:
- default:
- sector = 0;
- no_multi = 1;
- break; }
-
- scsi_CDs[MINOR(inode->i_rdev)].mpcd_sector = sector;
- if (is_xa)
- scsi_CDs[MINOR(inode->i_rdev)].xa_flags |= 0x01;
- else
- scsi_CDs[MINOR(inode->i_rdev)].xa_flags &= ~0x01;
- if (no_multi)
- scsi_CDs[MINOR(inode->i_rdev)].xa_flags |= 0x02;
- return;
-}
-
-static int sr_open(struct inode * inode, struct file * filp)
-{
- if(MINOR(inode->i_rdev) >= sr_template.nr_dev ||
- !scsi_CDs[MINOR(inode->i_rdev)].device) return -ENXIO; /* No such device */
-
- if (filp->f_mode & 2)
- return -EROFS;
-
- if(sr_template.usage_count) (*sr_template.usage_count)++;
-
- sr_ioctl(inode,filp,CDROMCLOSETRAY,0);
- check_disk_change(inode->i_rdev);
-
- if(!scsi_CDs[MINOR(inode->i_rdev)].device->access_count++)
- sr_ioctl(inode, NULL, SCSI_IOCTL_DOORLOCK, 0);
- if (scsi_CDs[MINOR(inode->i_rdev)].device->host->hostt->usage_count)
- (*scsi_CDs[MINOR(inode->i_rdev)].device->host->hostt->usage_count)++;
-
- sr_photocd(inode);
-
- /* If this device did not have media in the drive at boot time, then
- * we would have been unable to get the sector size. Check to see if
- * this is the case, and try again.
- */
-
- if(scsi_CDs[MINOR(inode->i_rdev)].needs_sector_size)
- get_sectorsize(MINOR(inode->i_rdev));
-
- return 0;
-}
-
-
-/*
- * do_sr_request() is the request handler function for the sr driver.
- * Its function in life is to take block device requests, and
- * translate them to SCSI commands.
- */
-
-static void do_sr_request (void)
-{
- Scsi_Cmnd * SCpnt = NULL;
- struct request * req = NULL;
- Scsi_Device * SDev;
- unsigned long flags;
- int flag = 0;
-
- while (1==1){
- save_flags(flags);
- cli();
- if (CURRENT != NULL && CURRENT->rq_status == RQ_INACTIVE) {
- restore_flags(flags);
- return;
- };
-
- INIT_SCSI_REQUEST;
-
- SDev = scsi_CDs[DEVICE_NR(CURRENT->rq_dev)].device;
-
- /*
- * I am not sure where the best place to do this is. We need
- * to hook in a place where we are likely to come if in user
- * space.
- */
- if( SDev->was_reset )
- {
- /*
- * We need to relock the door, but we might
- * be in an interrupt handler. Only do this
- * from user space, since we do not want to
- * sleep from an interrupt.
- */
- if( SDev->removable && !intr_count )
- {
- scsi_ioctl(SDev, SCSI_IOCTL_DOORLOCK, 0);
- }
- SDev->was_reset = 0;
- }
-
- if (flag++ == 0)
- SCpnt = allocate_device(&CURRENT,
- scsi_CDs[DEVICE_NR(CURRENT->rq_dev)].device, 0);
- else SCpnt = NULL;
- restore_flags(flags);
-
- /* This is a performance enhancement. We dig down into the request list and
- * try to find a queueable request (i.e. device not busy, and host able to
- * accept another command. If we find one, then we queue it. This can
- * make a big difference on systems with more than one disk drive. We want
- * to have the interrupts off when monkeying with the request list, because
- * otherwise the kernel might try to slip in a request in between somewhere. */
-
- if (!SCpnt && sr_template.nr_dev > 1){
- struct request *req1;
- req1 = NULL;
- save_flags(flags);
- cli();
- req = CURRENT;
- while(req){
- SCpnt = request_queueable(req,
- scsi_CDs[DEVICE_NR(req->rq_dev)].device);
- if(SCpnt) break;
- req1 = req;
- req = req->next;
- };
- if (SCpnt && req->rq_status == RQ_INACTIVE) {
- if (req == CURRENT)
- CURRENT = CURRENT->next;
- else
- req1->next = req->next;
- };
- restore_flags(flags);
- };
-
- if (!SCpnt)
- return; /* Could not find anything to do */
-
- wake_up(&wait_for_request);
-
- /* Queue command */
- requeue_sr_request(SCpnt);
- }; /* While */
-}
-
-void requeue_sr_request (Scsi_Cmnd * SCpnt)
-{
- unsigned int dev, block, realcount;
- unsigned char cmd[10], *buffer, tries;
- int this_count, start, end_rec;
-
- tries = 2;
-
- repeat:
- if(!SCpnt || SCpnt->request.rq_status == RQ_INACTIVE) {
- do_sr_request();
- return;
- }
-
- dev = MINOR(SCpnt->request.rq_dev);
- block = SCpnt->request.sector;
- buffer = NULL;
- this_count = 0;
-
- if (dev >= sr_template.nr_dev) {
- /* printk("CD-ROM request error: invalid device.\n"); */
- SCpnt = end_scsi_request(SCpnt, 0, SCpnt->request.nr_sectors);
- tries = 2;
- goto repeat;
- }
-
- if (!scsi_CDs[dev].use) {
- /* printk("CD-ROM request error: device marked not in use.\n"); */
- SCpnt = end_scsi_request(SCpnt, 0, SCpnt->request.nr_sectors);
- tries = 2;
- goto repeat;
- }
-
- if (scsi_CDs[dev].device->changed) {
- /*
- * quietly refuse to do anything to a changed disc
- * until the changed bit has been reset
- */
- /* printk("CD-ROM has been changed. Prohibiting further I/O.\n"); */
- SCpnt = end_scsi_request(SCpnt, 0, SCpnt->request.nr_sectors);
- tries = 2;
- goto repeat;
- }
-
- switch (SCpnt->request.cmd)
- {
- case WRITE:
- SCpnt = end_scsi_request(SCpnt, 0, SCpnt->request.nr_sectors);
- goto repeat;
- break;
- case READ :
- cmd[0] = READ_6;
- break;
- default :
- panic ("Unknown sr command %d\n", SCpnt->request.cmd);
- }
-
- cmd[1] = (SCpnt->lun << 5) & 0xe0;
-
- /*
- * Now do the grungy work of figuring out which sectors we need, and
- * where in memory we are going to put them.
- *
- * The variables we need are:
- *
- * this_count= number of 512 byte sectors being read
- * block = starting cdrom sector to read.
- * realcount = # of cdrom sectors to read
- *
- * The major difference between a scsi disk and a scsi cdrom
- * is that we will always use scatter-gather if we can, because we can
- * work around the fact that the buffer cache has a block size of 1024,
- * and we have 2048 byte sectors. This code should work for buffers that
- * are any multiple of 512 bytes long.
- */
-
- SCpnt->use_sg = 0;
-
- if (SCpnt->host->sg_tablesize > 0 &&
- (!need_isa_buffer ||
- dma_free_sectors >= 10)) {
- struct buffer_head * bh;
- struct scatterlist * sgpnt;
- int count, this_count_max;
- bh = SCpnt->request.bh;
- this_count = 0;
- count = 0;
- this_count_max = (scsi_CDs[dev].ten ? 0xffff : 0xff) << 4;
- /* Calculate how many links we can use. First see if we need
- * a padding record at the start */
- this_count = SCpnt->request.sector % 4;
- if(this_count) count++;
- while(bh && count < SCpnt->host->sg_tablesize) {
- if ((this_count + (bh->b_size >> 9)) > this_count_max) break;
- this_count += (bh->b_size >> 9);
- count++;
- bh = bh->b_reqnext;
- };
- /* Fix up in case of an odd record at the end */
- end_rec = 0;
- if(this_count % 4) {
- if (count < SCpnt->host->sg_tablesize) {
- count++;
- end_rec = (4 - (this_count % 4)) << 9;
- this_count += 4 - (this_count % 4);
- } else {
- count--;
- this_count -= (this_count % 4);
- };
- };
- SCpnt->use_sg = count; /* Number of chains */
- /* scsi_malloc can only allocate in chunks of 512 bytes */
- count = (SCpnt->use_sg * sizeof(struct scatterlist) + 511) & ~511;
-
- SCpnt->sglist_len = count;
- sgpnt = (struct scatterlist * ) scsi_malloc(count);
- if (!sgpnt) {
- printk("Warning - running *really* short on DMA buffers\n");
- SCpnt->use_sg = 0; /* No memory left - bail out */
- } else {
- buffer = (unsigned char *) sgpnt;
- count = 0;
- bh = SCpnt->request.bh;
- if(SCpnt->request.sector % 4) {
- sgpnt[count].length = (SCpnt->request.sector % 4) << 9;
- sgpnt[count].address = (char *) scsi_malloc(sgpnt[count].length);
- if(!sgpnt[count].address) panic("SCSI DMA pool exhausted.");
- sgpnt[count].alt_address = sgpnt[count].address; /* Flag to delete
- if needed */
- count++;
- };
- for(bh = SCpnt->request.bh; count < SCpnt->use_sg;
- count++, bh = bh->b_reqnext) {
- if (bh) { /* Need a placeholder at the end of the record? */
- sgpnt[count].address = bh->b_data;
- sgpnt[count].length = bh->b_size;
- sgpnt[count].alt_address = NULL;
- } else {
- sgpnt[count].address = (char *) scsi_malloc(end_rec);
- if(!sgpnt[count].address) panic("SCSI DMA pool exhausted.");
- sgpnt[count].length = end_rec;
- sgpnt[count].alt_address = sgpnt[count].address;
- if (count+1 != SCpnt->use_sg) panic("Bad sr request list");
- break;
- };
- if (((long) sgpnt[count].address) + sgpnt[count].length - 1 >
- ISA_DMA_THRESHOLD && SCpnt->host->unchecked_isa_dma) {
- sgpnt[count].alt_address = sgpnt[count].address;
- /* We try to avoid exhausting the DMA pool, since it is easier
- * to control usage here. In other places we might have a more
- * pressing need, and we would be screwed if we ran out */
- if(dma_free_sectors < (sgpnt[count].length >> 9) + 5) {
- sgpnt[count].address = NULL;
- } else {
- sgpnt[count].address = (char *) scsi_malloc(sgpnt[count].length);
- };
- /* If we start running low on DMA buffers, we abort the scatter-gather
- * operation, and free all of the memory we have allocated. We want to
- * ensure that all scsi operations are able to do at least a non-scatter/gather
- * operation */
- if(sgpnt[count].address == NULL){ /* Out of dma memory */
- printk("Warning: Running low on SCSI DMA buffers");
- /* Try switching back to a non scatter-gather operation. */
- while(--count >= 0){
- if(sgpnt[count].alt_address)
- scsi_free(sgpnt[count].address, sgpnt[count].length);
- };
- SCpnt->use_sg = 0;
- scsi_free(buffer, SCpnt->sglist_len);
- break;
- }; /* if address == NULL */
- }; /* if need DMA fixup */
- }; /* for loop to fill list */
-#ifdef DEBUG
- printk("SR: %d %d %d %d %d *** ",SCpnt->use_sg, SCpnt->request.sector,
- this_count,
- SCpnt->request.current_nr_sectors,
- SCpnt->request.nr_sectors);
- for(count=0; count<SCpnt->use_sg; count++)
- printk("SGlist: %d %x %x %x\n", count,
- sgpnt[count].address,
- sgpnt[count].alt_address,
- sgpnt[count].length);
-#endif
- }; /* Able to allocate scatter-gather list */
- };
-
- if (SCpnt->use_sg == 0){
- /* We cannot use scatter-gather. Do this the old fashion way */
- if (!SCpnt->request.bh)
- this_count = SCpnt->request.nr_sectors;
- else
- this_count = (SCpnt->request.bh->b_size >> 9);
-
- start = block % 4;
- if (start)
- {
- this_count = ((this_count > 4 - start) ?
- (4 - start) : (this_count));
- buffer = (unsigned char *) scsi_malloc(2048);
- }
- else if (this_count < 4)
- {
- buffer = (unsigned char *) scsi_malloc(2048);
- }
- else
- {
- this_count -= this_count % 4;
- buffer = (unsigned char *) SCpnt->request.buffer;
- if (((long) buffer) + (this_count << 9) > ISA_DMA_THRESHOLD &&
- SCpnt->host->unchecked_isa_dma)
- buffer = (unsigned char *) scsi_malloc(this_count << 9);
- }
- };
-
- if (scsi_CDs[dev].sector_size == 2048)
- block = block >> 2; /* These are the sectors that the cdrom uses */
- else
- block = block & 0xfffffffc;
-
- realcount = (this_count + 3) / 4;
-
- if (scsi_CDs[dev].sector_size == 512) realcount = realcount << 2;
-
- if (((realcount > 0xff) || (block > 0x1fffff)) && scsi_CDs[dev].ten)
- {
- if (realcount > 0xffff)
- {
- realcount = 0xffff;
- this_count = realcount * (scsi_CDs[dev].sector_size >> 9);
- }
-
- cmd[0] += READ_10 - READ_6 ;
- cmd[2] = (unsigned char) (block >> 24) & 0xff;
- cmd[3] = (unsigned char) (block >> 16) & 0xff;
- cmd[4] = (unsigned char) (block >> 8) & 0xff;
- cmd[5] = (unsigned char) block & 0xff;
- cmd[6] = cmd[9] = 0;
- cmd[7] = (unsigned char) (realcount >> 8) & 0xff;
- cmd[8] = (unsigned char) realcount & 0xff;
- }
- else
- {
- if (realcount > 0xff)
- {
- realcount = 0xff;
- this_count = realcount * (scsi_CDs[dev].sector_size >> 9);
- }
-
- cmd[1] |= (unsigned char) ((block >> 16) & 0x1f);
- cmd[2] = (unsigned char) ((block >> 8) & 0xff);
- cmd[3] = (unsigned char) block & 0xff;
- cmd[4] = (unsigned char) realcount;
- cmd[5] = 0;
- }
-
-#ifdef DEBUG
- {
- int i;
- printk("ReadCD: %d %d %d %d\n",block, realcount, buffer, this_count);
- printk("Use sg: %d\n", SCpnt->use_sg);
- printk("Dumping command: ");
- for(i=0; i<12; i++) printk("%2.2x ", cmd[i]);
- printk("\n");
- };
-#endif
-
- /* Some dumb host adapters can speed transfers by knowing the
- * minimum transfersize in advance.
- *
- * We shouldn't disconnect in the middle of a sector, but the cdrom
- * sector size can be larger than the size of a buffer and the
- * transfer may be split to the size of a buffer. So it's safe to
- * assume that we can at least transfer the minimum of the buffer
- * size (1024) and the sector size between each connect / disconnect.
- */
-
- SCpnt->transfersize = (scsi_CDs[dev].sector_size > 1024) ?
- 1024 : scsi_CDs[dev].sector_size;
-
- SCpnt->this_count = this_count;
- scsi_do_cmd (SCpnt, (void *) cmd, buffer,
- realcount * scsi_CDs[dev].sector_size,
- rw_intr, SR_TIMEOUT, MAX_RETRIES);
-}
-
-static int sr_detect(Scsi_Device * SDp){
-
- if(SDp->type != TYPE_ROM && SDp->type != TYPE_WORM) return 0;
-
-#ifdef MACH
- printk("Detected scsi CD-ROM cd%d at scsi%d, channel %d, id %d, lun %d\n",
-#else
- printk("Detected scsi CD-ROM sr%d at scsi%d, channel %d, id %d, lun %d\n",
-#endif
- sr_template.dev_noticed++,
- SDp->host->host_no, SDp->channel, SDp->id, SDp->lun);
-
- return 1;
-}
-
-static int sr_attach(Scsi_Device * SDp){
- Scsi_CD * cpnt;
- int i;
-
- if(SDp->type != TYPE_ROM && SDp->type != TYPE_WORM) return 1;
-
- if (sr_template.nr_dev >= sr_template.dev_max)
- {
- SDp->attached--;
- return 1;
- }
-
- for(cpnt = scsi_CDs, i=0; i<sr_template.dev_max; i++, cpnt++)
- if(!cpnt->device) break;
-
- if(i >= sr_template.dev_max) panic ("scsi_devices corrupt (sr)");
-
- SDp->scsi_request_fn = do_sr_request;
- scsi_CDs[i].device = SDp;
- sr_template.nr_dev++;
- if(sr_template.nr_dev > sr_template.dev_max)
- panic ("scsi_devices corrupt (sr)");
- return 0;
-}
-
-
-static void sr_init_done (Scsi_Cmnd * SCpnt)
-{
- struct request * req;
-
- req = &SCpnt->request;
- req->rq_status = RQ_SCSI_DONE; /* Busy, but indicate request done */
-
- if (req->sem != NULL) {
- up(req->sem);
- }
-}
-
-void get_sectorsize(int i){
- unsigned char cmd[10];
- unsigned char *buffer;
- int the_result, retries;
- Scsi_Cmnd * SCpnt;
-
- buffer = (unsigned char *) scsi_malloc(512);
- SCpnt = allocate_device(NULL, scsi_CDs[i].device, 1);
-
- retries = 3;
- do {
- cmd[0] = READ_CAPACITY;
- cmd[1] = (scsi_CDs[i].device->lun << 5) & 0xe0;
- memset ((void *) &cmd[2], 0, 8);
- SCpnt->request.rq_status = RQ_SCSI_BUSY; /* Mark as really busy */
- SCpnt->cmd_len = 0;
-
- memset(buffer, 0, 8);
-
- /* Do the command and wait.. */
- {
- struct semaphore sem = MUTEX_LOCKED;
- SCpnt->request.sem = &sem;
- scsi_do_cmd (SCpnt,
- (void *) cmd, (void *) buffer,
- 512, sr_init_done, SR_TIMEOUT,
- MAX_RETRIES);
- down(&sem);
- }
-
- the_result = SCpnt->result;
- retries--;
-
- } while(the_result && retries);
-
- SCpnt->request.rq_status = RQ_INACTIVE; /* Mark as not busy */
-
- wake_up(&SCpnt->device->device_wait);
-
- if (the_result) {
- scsi_CDs[i].capacity = 0x1fffff;
- scsi_CDs[i].sector_size = 2048; /* A guess, just in case */
- scsi_CDs[i].needs_sector_size = 1;
- } else {
- scsi_CDs[i].capacity = 1 + ((buffer[0] << 24) |
- (buffer[1] << 16) |
- (buffer[2] << 8) |
- buffer[3]);
- scsi_CDs[i].sector_size = (buffer[4] << 24) |
- (buffer[5] << 16) | (buffer[6] << 8) | buffer[7];
- switch (scsi_CDs[i].sector_size) {
- /*
- * HP 4020i CD-Recorder reports 2340 byte sectors
- * Philips CD-Writers report 2352 byte sectors
- *
- * Use 2k sectors for them..
- */
- case 0: case 2340: case 2352:
- scsi_CDs[i].sector_size = 2048;
- /* fall through */
- case 2048:
- scsi_CDs[i].capacity *= 4;
- /* fall through */
- case 512:
- break;
- default:
-#ifdef MACH
- printk ("cd%d : unsupported sector size %d.\n",
- i, scsi_CDs[i].sector_size);
-#else
- printk ("scd%d : unsupported sector size %d.\n",
- i, scsi_CDs[i].sector_size);
-#endif
- scsi_CDs[i].capacity = 0;
- scsi_CDs[i].needs_sector_size = 1;
- }
- scsi_CDs[i].needs_sector_size = 0;
- sr_sizes[i] = scsi_CDs[i].capacity >> (BLOCK_SIZE_BITS - 9);
- };
- scsi_free(buffer, 512);
-}
-
-static int sr_registered = 0;
-
-static int sr_init()
-{
- int i;
-
- if(sr_template.dev_noticed == 0) return 0;
-
- if(!sr_registered) {
- if (register_blkdev(MAJOR_NR,"sr",&sr_fops)) {
- printk("Unable to get major %d for SCSI-CD\n",MAJOR_NR);
- return 1;
- }
- sr_registered++;
- }
-
-
- if (scsi_CDs) return 0;
- sr_template.dev_max = sr_template.dev_noticed + SR_EXTRA_DEVS;
- scsi_CDs = (Scsi_CD *) scsi_init_malloc(sr_template.dev_max * sizeof(Scsi_CD), GFP_ATOMIC);
- memset(scsi_CDs, 0, sr_template.dev_max * sizeof(Scsi_CD));
-
- sr_sizes = (int *) scsi_init_malloc(sr_template.dev_max * sizeof(int), GFP_ATOMIC);
- memset(sr_sizes, 0, sr_template.dev_max * sizeof(int));
-
- sr_blocksizes = (int *) scsi_init_malloc(sr_template.dev_max *
- sizeof(int), GFP_ATOMIC);
- for(i=0;i<sr_template.dev_max;i++) sr_blocksizes[i] = 2048;
- blksize_size[MAJOR_NR] = sr_blocksizes;
- return 0;
-}
-
-void sr_finish()
-{
- int i;
-
- blk_dev[MAJOR_NR].request_fn = DEVICE_REQUEST;
- blk_size[MAJOR_NR] = sr_sizes;
-
- for (i = 0; i < sr_template.nr_dev; ++i)
- {
- /* If we have already seen this, then skip it. Comes up
- * with loadable modules. */
- if (scsi_CDs[i].capacity) continue;
- scsi_CDs[i].capacity = 0x1fffff;
- scsi_CDs[i].sector_size = 2048; /* A guess, just in case */
- scsi_CDs[i].needs_sector_size = 1;
-#if 0
- /* seems better to leave this for later */
- get_sectorsize(i);
- printk("Scd sectorsize = %d bytes.\n", scsi_CDs[i].sector_size);
-#endif
- scsi_CDs[i].use = 1;
- scsi_CDs[i].ten = 1;
- scsi_CDs[i].remap = 1;
- scsi_CDs[i].auto_eject = 0; /* Default is not to eject upon unmount. */
- sr_sizes[i] = scsi_CDs[i].capacity >> (BLOCK_SIZE_BITS - 9);
- }
-
-
- /* If our host adapter is capable of scatter-gather, then we increase
- * the read-ahead to 16 blocks (32 sectors). If not, we use
- * a two block (4 sector) read ahead. */
- if(scsi_CDs[0].device && scsi_CDs[0].device->host->sg_tablesize)
- read_ahead[MAJOR_NR] = 32; /* 32 sector read-ahead. Always removable. */
- else
- read_ahead[MAJOR_NR] = 4; /* 4 sector read-ahead */
-
- return;
-}
-
-static void sr_detach(Scsi_Device * SDp)
-{
- Scsi_CD * cpnt;
- int i;
-
- for(cpnt = scsi_CDs, i=0; i<sr_template.dev_max; i++, cpnt++)
- if(cpnt->device == SDp) {
- kdev_t devi = MKDEV(MAJOR_NR, i);
-
- /*
- * Since the cdrom is read-only, no need to sync the device.
- * We should be kind to our buffer cache, however.
- */
- invalidate_inodes(devi);
- invalidate_buffers(devi);
-
- /*
- * Reset things back to a sane state so that one can re-load a new
- * driver (perhaps the same one).
- */
- cpnt->device = NULL;
- cpnt->capacity = 0;
- SDp->attached--;
- sr_template.nr_dev--;
- sr_template.dev_noticed--;
- sr_sizes[i] = 0;
- return;
- }
- return;
-}
-
-
-#ifdef MODULE
-
-int init_module(void) {
- sr_template.usage_count = &mod_use_count_;
- return scsi_register_module(MODULE_SCSI_DEV, &sr_template);
-}
-
-void cleanup_module( void)
-{
- scsi_unregister_module(MODULE_SCSI_DEV, &sr_template);
- unregister_blkdev(SCSI_CDROM_MAJOR, "sr");
- sr_registered--;
- if(scsi_CDs != NULL) {
- scsi_init_free((char *) scsi_CDs,
- (sr_template.dev_noticed + SR_EXTRA_DEVS)
- * sizeof(Scsi_CD));
-
- scsi_init_free((char *) sr_sizes, sr_template.dev_max * sizeof(int));
- scsi_init_free((char *) sr_blocksizes, sr_template.dev_max * sizeof(int));
- }
-
- blksize_size[MAJOR_NR] = NULL;
- blk_dev[MAJOR_NR].request_fn = NULL;
- blk_size[MAJOR_NR] = NULL;
- read_ahead[MAJOR_NR] = 0;
-
- sr_template.dev_max = 0;
-}
-#endif /* MODULE */
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-indent-level: 4
- * c-brace-imaginary-offset: 0
- * c-brace-offset: -4
- * c-argdecl-indent: 4
- * c-label-offset: -4
- * c-continued-statement-offset: 4
- * c-continued-brace-offset: 0
- * indent-tabs-mode: nil
- * tab-width: 8
- * End:
- */
--
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