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ops.c
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/*
-------------------------------------------------------------------------
Copyright (c) 2012 IOCELL Networks, Plainsboro, NJ, USA.
All rights reserved.
LICENSE TERMS
The free distribution and use of this software in both source and binary
form is allowed (with or without changes) provided that:
1. distributions of this source code include the above copyright
notice, this list of conditions and the following disclaimer;
2. distributions in binary form include the above copyright
notice, this list of conditions and the following disclaimer
in the documentation and/or other associated materials;
3. the copyright holder's name is not used to endorse products
built using this software without specific written permission.
ALTERNATIVELY, provided that this notice is retained in full, this product
may be distributed under the terms of the GNU General Public License (GPL v2),
in which case the provisions of the GPL apply INSTEAD OF those given above.
DISCLAIMER
This software is provided 'as is' with no explcit or implied warranties
in respect of any properties, including, but not limited to, correctness
and fitness for purpose.
-------------------------------------------------------------------------
*/
#include "linux_ver.h"
#if LINUX_VERSION_25_ABOVE
#include <linux/fs.h> // blkdev_ioctl
#include <linux/buffer_head.h> // file_fsync
#include <linux/genhd.h> // rescan_parition
#include <linux/workqueue.h> //
#else
#include <linux/kdev_t.h> // kdev_t for linux/blkpg.h
#endif
#include <linux/netdevice.h> // dev_base dev_base_lock
#include <linux/slab.h> // kmalloc, kfree
#include <linux/blkpg.h> // BLKPG
#include <linux/module.h> // module_put for 2.6, MOD_INC/DEC for 2.4
#include <asm/uaccess.h> // VERIFY_WRITE
#if LINUX_VERSION_AVOID_CFQ_SCHEDULER
#include <linux/sysfs.h>
#endif
#if !LINUX_VERSION_DEVFS_REMOVED_COMPLETELY
#ifdef NDAS_DEVFS
#ifndef CONFIG_DEVFS_FS
#error This kernel config does not support devfs.
#endif
#else
#include <linux/devfs_fs_kernel.h>
#endif
#endif
#include "inc/sal/debug.h"
#include "inc/sal/types.h"
#include "inc/sal/sync.h"
#include "inc/sal/libc.h"
#include "inc/ndasuser/ndasuser.h"
#include "inc/ndasuser/write.h"
#ifdef XPLAT_XIXFS_EVENT
#include <xixfsevent/xixfs_event.h>
#endif //#ifdef XPLAT_XIXFS_EVENT
#include "block.h"
#include "ops.h"
#include "ndasdev.h"
#include "procfs.h"
#ifdef NDAS_MSHARE
#include <linux/cdrom.h>
#include <ndasuser/mediaop.h>
#define IOCTL_IN(arg, type, in) \
if(copy_from_user(&(in), (type *) (arg), sizeof (in)))\
return -EFAULT;
#define IOCTL_OUT(arg, type, out) \
if(copy_to_user((type *) (arg), &(out), sizeof (out)))\
return -EFAULT;
#define CM_READ 0
#define CM_WRITE 1
#endif //#ifdef NDAS_MSHARE
#ifdef DEBUG
#define LOCAL
#else
#define LOCAL static
#endif
#define OPEN_WRITE_BIT 16
#define DEBUG_GENDISK(g) \
({ \
static char __buf__[1024];\
if ( g ) \
snprintf(__buf__,sizeof(__buf__), \
"%p={major=%d,first_minor=%d,minors=0x%x,disk_name=%s," \
"private_data=%p,capacity=%%lld}", \
g,\
g->major, \
g->first_minor,\
g->minors,\
g->disk_name, \
g->private_data/*,*/ \
/*(long long)g->capacity*/ \
); \
else \
snprintf(__buf__,sizeof(__buf__), "NULL"); \
(const char*) __buf__; \
})
struct ndas_slot* g_ndas_dev[NDAS_MAX_SLOT_NR] = {0};
#if LINUX_VERSION_25_ABOVE
#else
static
struct gendisk ndas_gd = {
.major = NDAS_BLK_MAJOR,
.major_name = "nd",
.minor_shift = PARTN_BITS,
.max_p = (1<<PARTN_BITS),
.part = ndas_hd,
.sizes = ndas_sizes,
.fops = &ndas_fops,
};
void ndas_ops_invalidate_slot(int slot)
{
int i;
int start;
start = (slot - NDAS_FIRST_SLOT_NR) << ndas_gd.minor_shift;
for(i = ndas_gd.max_p - 1; i>=0; i--)
{
int minor = start + i;
invalidate_device(MKDEV(NDAS_BLK_MAJOR, minor), 0);
ndas_gd.part[minor].start_sect = 0;
ndas_gd.part[minor].nr_sects = 0 ;
}
}
ndas_error_t ndas_ops_read_partition(int slot)
{
int start,i;
long sectors;
dbgl_blk(3, "slot=%d",slot );
start = (slot - NDAS_FIRST_SLOT_NR) << ndas_gd.minor_shift;
for(i = ndas_gd.max_p - 1; i>=0; i--)
{
int minor = start + i;
invalidate_device(MKDEV(NDAS_BLK_MAJOR, minor), 1);
ndas_gd.part[minor].start_sect = 0;
ndas_gd.part[minor].nr_sects = 0 ;
}
sectors = NDAS_GET_SLOT_DEV(slot)->info.sectors;
#ifdef NDAS_MSHARE
if(NDAS_GET_SLOT_DEV(slot)->info.mode != NDAS_DISK_MODE_MEDIAJUKE)
{
#endif
dbgl_blk(3, "sectors=%ld",sectors);
grok_partitions(
&ndas_gd,
(slot - NDAS_FIRST_SLOT_NR),
1<<PARTN_BITS,
sectors
);
for(i=0; i<NR_PARTITION; i++) {
dbgl_blk(4, " Part %d: (%ld,%ld) ",
i,
ndas_hd[((slot - NDAS_FIRST_SLOT_NR)<<PARTN_BITS)+i].start_sect,
ndas_hd[((slot - NDAS_FIRST_SLOT_NR)<<PARTN_BITS)+i].nr_sects);
}
#ifdef NDAS_MSHARE
}else{
grok_partitions(
&ndas_gd,
(slot - NDAS_FIRST_SLOT_NR),
1<<PARTN_BITS,
sectors
);
for(i = ndas_gd.max_p - 1; i >= 0; i--)
{
int minor = start + i;
ndas_gd.part[minor].start_sect = 0;
ndas_gd.part[minor].nr_sects = (1024*1024*8*2);
}
}
#endif
dbgl_blk(3, "ed");
return NDAS_OK;
}
#endif
/**
* Open the NDAS device file.
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
int ndop_open(struct block_device *bdev, fmode_t mode)
#else
int ndop_open(struct inode *inode, struct file *filp)
#endif
{
#if !LINUX_VERSION_25_ABOVE
int part;
#endif
int slot;
ndas_error_t error;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
dbgl_blk(3, "ing bdev=%p",bdev);
#else
dbgl_blk(3, "ing inode=%p",inode);
if(!filp) {
dbgl_blk(1,"Weird, open called with filp = 0\n");
return -EIO;
}
#endif
MOD_INC_USE_COUNT;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
slot = SLOT_B(bdev);
dbgl_blk(2,"slot =0x%x", slot);
dbgl_blk(2,"dev_t=0x%x", bdev->bd_dev);
#else
slot = SLOT_I(inode);
dbgl_blk(2,"slot =0x%x", slot);
dbgl_blk(2,"dev_t=0x%x", inode->i_bdev->bd_dev);
#endif
if (slot > NDAS_MAX_SLOT_NR) {
printk("ndas: minor too big.\n");
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
ndop_release(bdev->bd_disk, mode);
#else
ndop_release(inode, filp);
#endif
return -ENXIO;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
if ( mode & FMODE_NDELAY ) {
dbgl_blk(3, "ed FMODE_NDELAY");
return 0;
}
#else
if ( filp->f_flags & O_NDELAY ) {
dbgl_blk(3, "ed O_NDELAY");
return 0;
}
#endif
if ( NDAS_GET_SLOT_DEV(slot) == NULL )
return -ENODEV;
if ( NDAS_GET_SLOT_DEV(slot)->enabled == 0 ) {
dbgl_blk(3, "ed not enabled");
printk("ndas: device is not enabled\n");
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
ndop_release(bdev->bd_disk, mode);
#else
ndop_release(inode, filp);
#endif
return -ENODEV;
}
error = ndas_query_slot(slot, &g_ndas_dev[slot - NDAS_FIRST_SLOT_NR]->info);
if ( !NDAS_SUCCESS(NDAS_OK) ) {
dbgl_blk(3, "ed can't get info");
printk("ndas: device is not reachable\n");
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
ndop_release(bdev->bd_disk, mode);
#else
ndop_release(inode, filp);
#endif
return -ENODEV;
}
#if !LINUX_VERSION_25_ABOVE
part = PARTITION(inode->i_rdev);
if(NDAS_GET_SLOT_DEV(slot)->ref[part] == -1
|| (NDAS_GET_SLOT_DEV(slot)->ref[part] && (filp->f_flags & O_EXCL)))
{
dbgl_blk(2, "2:adapter_state->nd_ref[%d] = %d\n", part,
NDAS_GET_SLOT_DEV(slot)->ref[part]);
ndop_release(inode, filp);
printk("ndas: device is not exclusively opened\n");
return -EBUSY;
}
if(filp->f_flags & O_EXCL)
NDAS_GET_SLOT_DEV(slot)->ref[part] = -1;
else
NDAS_GET_SLOT_DEV(slot)->ref[part] ++;
if (filp->f_flags & O_NDELAY) {
dbgl_blk(3, "adapter_state->nd_ref[%d] = %d\n", part,
NDAS_GET_SLOT_DEV(slot)->ref[part]);
return 0;
}
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
dbgl_blk(3, "mode=%x",mode);
#else
dbgl_blk(3, "filp->f_mode=%x",filp->f_mode);
dbgl_blk(3, "filp->f_flags=%x",filp->f_flags);
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
if (mode & FMODE_WRITE_IOCTL) {
#else
if (filp->f_mode & (O_ACCMODE)) {
#endif
#if !LINUX_VERSION_25_ABOVE
ndop_check_netdisk_change(inode->i_rdev);
#endif
/* if(g_ndas_dev[slot - 1].flags[part] & ND_CHANGED) {
dbgl_blk(3,"netdisk changed !!\n");
goto error_out;
*/
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
if ( (mode & 2)
#else
if ( (filp->f_mode & 2)
#endif
&& !NDAS_GET_SLOT_DEV(slot)->info.writable)
{
dbgl_blk(3, "ed read-only");
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
ndop_release(bdev->bd_disk, mode);
#else
ndop_release(inode, filp);
#endif
return -EROFS;
}
#if !LINUX_VERSION_25_ABOVE
dbgl_blk(3,"g_ndas_dev->nd_ref[%d] = %d, flags = %x, mode = %x", part,
NDAS_GET_SLOT_DEV(slot)->ref[part], filp ? filp->f_flags : 0, filp ? filp->f_mode : 0);
#endif
dbgl_blk(3, "ed open");
return 0;
}
/* close the NDAS device file */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
int ndop_release(struct gendisk *disk, fmode_t mode)
#else
int ndop_release(struct inode *inode, struct file *filp)
#endif
{
#if !LINUX_VERSION_25_ABOVE
int part;
#endif
int slot;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
dbgl_blk(5, "disk=%p",disk);
dbgl_blk(5, "mode=%x",mode);
if(!disk) {
printk("Weird, open called with disk = 0\n");
return -ENODEV;
}
#else
dbgl_blk(5, "inode=%p",inode);
dbgl_blk(5, "filp=%p",filp);
if(!inode) {
printk("Weird, open called with inode = 0\n");
return -ENODEV;
}
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
slot = SLOT_D(disk);
#else
slot = SLOT_I(inode);
#endif
dbgl_blk(2,"slot =%d", slot);
if (slot > NDAS_MAX_SLOT_NR) {
printk("Minor too big.\n");
return -ENODEV;
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28))
if(filp && (filp->f_mode & (2 | OPEN_WRITE_BIT)))
file_fsync(filp, filp->f_dentry, 0);
#endif
if ( g_ndas_dev[slot - NDAS_FIRST_SLOT_NR] == NULL ) { //
MOD_DEC_USE_COUNT;
return 0;
}
#if !LINUX_VERSION_25_ABOVE
part = PARTITION(inode->i_rdev);
dbgl_blk(3,"slot=%d, part=%d", slot, part);
if(g_ndas_dev[slot - NDAS_FIRST_SLOT_NR]->ref[part] == -1)
g_ndas_dev[slot - NDAS_FIRST_SLOT_NR]->ref[part] = 0;
else if(!g_ndas_dev[slot - NDAS_FIRST_SLOT_NR]->ref[part])
dbgl_blk(3,"nd_ref[%d] = 0", part);
else
g_ndas_dev[slot - NDAS_FIRST_SLOT_NR]->ref[part] --;
#endif
dbgl_blk(3,"ed");
MOD_DEC_USE_COUNT;
return 0;
}
#ifdef NDAS_MSHARE
typedef struct _MY_READ_DVD_STRUCTURE_REPLY{
unsigned char ReadDvdStructLenMsb;
unsigned char ReadDvdStructLenLsb;
unsigned char Reserved1;
unsigned char Reserved2;
unsigned char PerVersion :4;
unsigned char BookType :4;
unsigned char MaxRate :4;
unsigned char DiscSize :4;
unsigned char LayerType :4;
unsigned char TrackPath :1;
unsigned char NumOfLayer :2;
unsigned char Reserved :1;
unsigned char TrackDensity :4;
unsigned char LinearDensity :4;
unsigned char StartPhySecNumDataArea0;
unsigned char StartPhySecNumDataArea1;
unsigned char StartPhySecNumDataArea2;
unsigned char StartPhySecNumDataArea3;
unsigned char EndPhySecNumDataArea0;
unsigned char EndPhySecNumDataArea1;
unsigned char EndPhySecNumDataArea2;
unsigned char EndPhySecNumDataArea3;
unsigned char EndSecNumInLayer0;
unsigned char EndSecNumInLayer1;
unsigned char EndSecNumInLayer2;
unsigned char EndSecNumInLayer3;
unsigned char Reserved3 :7;
unsigned char BCA :1;
unsigned char MediaSpecific[1];
}
MY_READ_DVD_STRUCTURE_REPLY, *PMY_READ_DVD_STRUCTURE_REPLY;
typedef struct _MY_CDVD_REPORT_ASF_DATA {
unsigned char Reserved1[3];
unsigned char Success : 1;
unsigned char Reserved2 : 7;
}
MY_CDVD_REPORT_ASF_DATA, *PMY_CDVD_REPORT_ASF_DATA;
struct MY_ATAPI_CAPA_PAGE {
struct mode_page_header header;
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char SAVBABLE : 1;
unsigned char RESERVED1 : 1;
unsigned char PAGECODE : 6;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char PAGECODE : 6;
unsigned char RESERVED1 : 1;
unsigned char SAVBABLE : 1;
#else
#endif
unsigned char PAGELENGTH;
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char RESERVED2 : 2;
unsigned char DVD_RAM_R : 1;
unsigned char DVD_R_R : 1;
unsigned char DVD_ROM : 1;
unsigned char METHOD2 : 1; /* reserved in 1.2 */
unsigned char CD_RW_R : 1; /* reserved in 1.2 */
unsigned char CD_R_R : 1; /* reserved in 1.2 */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char CD_R_R : 1; /* reserved in 1.2 */
unsigned char CD_RW_R : 1; /* reserved in 1.2 */
unsigned char METHOD2 : 1;
unsigned char DVD_ROM : 1;
unsigned char DVD_R_R : 1;
unsigned char DVD_RAM_R : 1;
unsigned char RESERVED2 : 2;
#else
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char RESERVED3 : 2;
unsigned char DVD_RAM_W : 1;
unsigned char DVD_R_W : 1;
unsigned char RESERVED4 : 1;
unsigned char TEST_W : 1;
unsigned char CD_RW_W : 1; /* reserved in 1.2 */
unsigned char CD_R_W : 1; /* reserved in 1.2 */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char CD_R_W : 1; /* reserved in 1.2 */
unsigned char CD_RW_W : 1; /* reserved in 1.2 */
unsigned char TEST_W : 1;
unsigned char RESERVED4 : 1;
unsigned char DVD_R_W : 1;
unsigned char DVD_RAM_W : 1;
unsigned char RESERVED3 : 2;
#else
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char RESERVED5 : 1;
unsigned char M_SESSION : 1;
unsigned char MODE2FORM2 : 1;
unsigned char MODE2FORM1 : 1;
unsigned char D_PORT2 : 1;
unsigned char D_PORT1 : 1;
unsigned char COMPOSITE : 1;
unsigned char AUDIOPLAY : 1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char AUDIOPLAY : 1;
unsigned char COMPOSITE : 1;
unsigned char D_PORT1 : 1;
unsigned char D_PORT2 : 1;
unsigned char MODE2FORM1 : 1;
unsigned char MODE2FORM2 : 1;
unsigned char M_SESSION : 1;
unsigned char RESERVED5 : 1;
#else
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char RESERVED6 : 1;
unsigned char UPC : 1;
unsigned char ISRC : 1;
unsigned char C2POINTERS : 1;
unsigned char RWCORR : 1;
unsigned char RWSUP : 1;
unsigned char CDDA_ACUR : 1;
unsigned char CDDA : 1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char CDDA : 1;
unsigned char CDDA_ACUR : 1;
unsigned char RWSUP : 1;
unsigned char RWCORR : 1;
unsigned char C2POINTERS : 1;
unsigned char ISRC : 1;
unsigned char UPC : 1;
unsigned char RESERVED6 : 1;
#else
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
mechtype_t MTYPE : 3;
unsigned char RESERVED7 : 1;
unsigned char EJECT : 1;
unsigned char PREVENT_J : 1;
unsigned char LOCKSTATE : 1;
unsigned char LOCK : 1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char LOCK : 1;
unsigned char LOCKSTATE : 1;
unsigned char PREVENT_J : 1;
unsigned char EJECT : 1;
unsigned char RESERVED7 : 1;
mechtype_t MTYPE : 3;
#else
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned char RESERVED8 : 4;
unsigned char SSS : 1; /* reserved in 1.2 */
unsigned char DISC_IN : 1; /* reserved in 1.2 */
unsigned char SEP_MUTE : 1;
unsigned char SEP_VOLUME : 1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned char SEP_VOLUME : 1;
unsigned char SEP_MUTE : 1;
unsigned char DISC_IN : 1; /* reserved in 1.2 */
unsigned char SSS : 1; /* reserved in 1.2 */
unsigned char RESERVED8 : 4;
#else
#endif
unsigned short MAXSPPED;
unsigned short NUM_VOL_LEVELS;
unsigned short BUF_SIZE;
unsigned short CUR_SPEED;
char pad[4];
};
//
// cdrom emulate code
//
int ACT_ATAPI_CMD(
int slot,
int partnum,
kdev_t dev,
struct cdrom_generic_command * cgc
)
{
int result = -EINVAL;
int status;
dbgl_blk(4,"enter ACT_ATAPI_CMD---\n");
if(cgc->sense)
memset(cgc->sense, 0, sizeof(struct request_sense));
status = ndas_GetDiscStatus(slot, partnum);
if( !(status & (DISC_STATUS_VALID | DISC_STATUS_VALID_END)) )
{
struct request_sense * sense;
sense = cgc->sense;
sense->error_code = 0x70;
sense->valid = 1;
//sense->segment_number;
sense->sense_key = 0x02; //NOT_READ
//sense->ili
//sense->information[0];
//sense->information[3];
sense->add_sense_len = 0xb;
//sense->command_info[0];
//sense->command_info[3];
sense->asc = 0x3a; // INVALIDE_CCB;
sense->ascq = 0x0;
//sense->fruc;
//sense->sks[0];
//sense->sks[3];
//sense->asb[0];
//sense->asb[45];
result = -EINVAL;
return result;
}
switch(cgc->cmd[0])
{
case 0x5a:
{
if(cgc->cmd[2] == 0x2a)
{
struct MY_ATAPI_CAPA_PAGE * page;
dbgl_blk(4,"in 0x2a\n");
dbgl_blk(4,"buflen %d\n", cgc->buflen);
memset(cgc->buffer,0,cgc->buflen);
page = (struct MY_ATAPI_CAPA_PAGE *)(cgc->buffer);
page->header.mode_data_length = 0x20;
page->header.medium_type = 0;// 0x70;
page->PAGECODE = 0x2a;
page->PAGELENGTH = 0x18;
page->CD_R_R = 1;
page->CD_RW_R = 1;
page->METHOD2 = 1;
page->DVD_ROM = 1;
page->DVD_R_R = 1;
page->DVD_RAM_R = 1;
page->CD_R_W = 0;
page->CD_RW_W = 0;
page->TEST_W = 0;
page->DVD_R_W = 0;
page->DVD_RAM_W = 0;
page->AUDIOPLAY = 0;
page->COMPOSITE = 0;
page->D_PORT1 = 0;
page->D_PORT2 = 0;
page->MODE2FORM1 = 0;
page->MODE2FORM2 = 0;
page->M_SESSION = 1;
page->CDDA = 1;
page->CDDA_ACUR = 1;
page->RWSUP = 0;
page->RWCORR = 0;
page->C2POINTERS = 0;
page->ISRC = 0;
page->UPC = 0;
page->LOCK = 0;
page->LOCKSTATE = 0;
page->PREVENT_J = 0;
page->EJECT = 1;
page->MTYPE = 1;
page->SEP_VOLUME = 1;
page->SEP_MUTE = 1;
page->DISC_IN = 0;
page->SSS = 0;
//page->MAXSPPED;
page->NUM_VOL_LEVELS = 0xff;
page->BUF_SIZE = 0x02;
//page->CUR_SPEED;
result = 0;
}else{
struct request_sense * sense;
dbgl_blk(4,"in (0x%02x)\n",cgc->cmd[2]);
sense = cgc->sense;
sense->error_code = 0x70;
sense->valid = 1;
//sense->segment_number;
sense->sense_key = 0x05; //ILLEGAL_REQ
//sense->ili
//sense->information[0];
//sense->information[3];
sense->add_sense_len = 0xb;
//sense->command_info[0];
//sense->command_info[3];
sense->asc = 0x24; // INVALIDE_CCB;
sense->ascq = 0x0;
//sense->fruc;
//sense->sks[0];
//sense->sks[3];
//sense->asb[0];
//sense->asb[45];
result = -EINVAL;
}
}
break;
case 0x28:
case 0xa8:
{
unsigned int logicalBlockAddress;
unsigned int transferBlock;
unsigned int startSec;
unsigned int org_req_sectors;
if(cgc->cmd[0] == 0x28){
logicalBlockAddress = ( cgc->cmd[5]
| cgc->cmd[4] << 8
| cgc->cmd[3] << 16
| cgc->cmd[2] << 24 );
transferBlock = ( cgc->cmd[8]
| cgc->cmd[7] << 8);
}else {
logicalBlockAddress = ( cgc->cmd[5]
| cgc->cmd[4] << 8
| cgc->cmd[3] << 16
| cgc->cmd[2] << 24 );
transferBlock = ( cgc->cmd[9]
| cgc->cmd[8] << 8
| cgc->cmd[7] << 16
| cgc->cmd[6] << 24);
}
//
// check addres : application direct ioctl
// unit sector : may be 2048
//
if(cgc->buflen < (unsigned int)(transferBlock * 2048) )
{
printk("buffer size (%d) is too small than req block(%d)\n",
cgc->buflen,transferBlock );
result = -EINVAL;
break;
}
// address translation send command
startSec = (unsigned int)(logicalBlockAddress << 2);
org_req_sectors = (unsigned int)(transferBlock << 2);
dbgl_blk(4,"StartSec (%d): org_req_sector(%d)\n",startSec,org_req_sectors);
//printk("StartSec (%d): org_req_sector(%d)\n",startSec,org_req_sectors);
if(ndas_ATAPIRequest(slot,partnum, dev, CM_READ, startSec, org_req_sectors, cgc->buffer) != NDAS_OK)
{
printk("Fail SendATA_CMD\n");
result = -EINVAL;
return result;
}
return 0;
}
break;
case 0x0:
result = 0;
break;
case 0xad:
{
if(cgc->cmd[7] == 0x00){
MY_READ_DVD_STRUCTURE_REPLY Reply;
unsigned int StartPhySec;
unsigned int EndPhySec;
unsigned int EndSecNumL0;
memset((char *)&Reply,0,sizeof(MY_READ_DVD_STRUCTURE_REPLY));
Reply.ReadDvdStructLenLsb = (unsigned char)((sizeof(MY_READ_DVD_STRUCTURE_REPLY) -2) & 0xff);
Reply.BookType = 0;
Reply.PerVersion = 1;
Reply.DiscSize = 0;
Reply.MaxRate = 2;
Reply.NumOfLayer = 1;
Reply.TrackPath = 1;
Reply.LayerType = 1;
Reply.LinearDensity = 1;
Reply.TrackDensity = 0;
StartPhySec = 0x30000;
Reply.StartPhySecNumDataArea3 = (unsigned char)(StartPhySec & 0xff);
Reply.StartPhySecNumDataArea2 = (unsigned char)((StartPhySec >> 8) & 0xff);
Reply.StartPhySecNumDataArea1 = (unsigned char)((StartPhySec >> 16) & 0xff);
Reply.StartPhySecNumDataArea0 = (unsigned char)((StartPhySec >> 24) & 0xff);
EndPhySec = 0xfcf4f0;
Reply.EndPhySecNumDataArea3 = (unsigned char)(EndPhySec & 0xff);
Reply.EndPhySecNumDataArea2 = (unsigned char)((EndPhySec >> 8) & 0xff);
Reply.EndPhySecNumDataArea1 = (unsigned char)((EndPhySec >> 16) & 0xff);
Reply.EndPhySecNumDataArea0 = (unsigned char)((EndPhySec >> 24) & 0xff);
EndSecNumL0 = 0x22c28f;
Reply.EndSecNumInLayer3 = (unsigned char)(EndSecNumL0 & 0xff);
Reply.EndSecNumInLayer2 = (unsigned char)((EndSecNumL0 >> 8) & 0xff);
Reply.EndSecNumInLayer1 = (unsigned char)((EndSecNumL0 >> 16) & 0xff);
Reply.EndSecNumInLayer0 = (unsigned char)((EndSecNumL0 >> 24) & 0xff);
if(cgc->buflen < sizeof(MY_READ_DVD_STRUCTURE_REPLY)){
memcpy((char *)cgc->buffer, (char *)&Reply, cgc->buflen);
}else{
memcpy((char *)cgc->buffer, (char *)&Reply, sizeof(MY_READ_DVD_STRUCTURE_REPLY));
}
result = 0;
}else {
result = -1;
}
}
break;
case 0xa4:
{
switch(cgc->cmd[10] & 0x3f){
case 0x0:
case 0x1:
case 0x2:
case 0x4:
case 0x8:
case 0x3f:
{
result = 0;
}
break;
case 0x5:
{
MY_CDVD_REPORT_ASF_DATA ASF_DATA;
ASF_DATA.Success = 0;
memset(&ASF_DATA,0,sizeof(ASF_DATA));
memcpy(cgc->buffer,&ASF_DATA,sizeof(MY_CDVD_REPORT_ASF_DATA));
if(cgc->sense != NULL) {
struct request_sense * sense;
sense = cgc->sense;
sense->error_code = 0x70;
sense->valid = 1;
//sense->segment_number;
sense->sense_key = 0x05; //ILLEGAL_REQ
//sense->ili
//sense->information[0];
//sense->information[3];
sense->add_sense_len = 0xb;
//sense->command_info[0];
//sense->command_info[3];
sense->asc = 0x6f;
sense->ascq = 0x0;
//sense->fruc;
//sense->sks[0];
//sense->sks[3];
//sense->asb[0];
//sense->asb[45];
}
result = -EINVAL;
}
break;
default:
{
if(cgc->sense != NULL) {
struct request_sense * sense;
sense = cgc->sense;
sense->error_code = 0x70;
sense->valid = 1;
//sense->segment_number;
sense->sense_key = 0x05; //ILLEGAL_REQ
//sense->ili
//sense->information[0];
//sense->information[3];
sense->add_sense_len = 0xb;
//sense->command_info[0];
//sense->command_info[3];
sense->asc = 0x6f;
sense->ascq = 0x0;
//sense->fruc;
//sense->sks[0];
//sense->sks[3];
//sense->asb[0];
//sense->asb[45];
}
result = -EINVAL;
}
break;
}
}
break;
default:
//printk("command 0x%02x\n", cgc->cmd[0]);
result = 0;
break;
break;
}
dbgl_blk(4,"---end ACT_ATAPI_CMD\n");
return result;
}
int Do_ATAPI_CMD(
int slot,
int partnum,
kdev_t dev,
struct cdrom_generic_command * cgc
)
{
struct ndas_slot *sd = NULL;
struct request_sense *usense, sense;
unsigned char *tbuf;
int ret;
sd = NDAS_GET_SLOT_DEV(slot);
dbgl_blk(4, "enter Do_ATAPI_CMD---\n");
if(cgc->data_direction == CGC_DATA_UNKNOWN)
{
printk("Do_ATAPI_CMD: error CGC_DATA_UNKOWN\n");
return NDAS_ERROR_INVALID_PARAMETER ;
}
if(cgc->buflen < 0 || cgc->buflen >= (sd->info.max_sectors_per_request * 1024))
{
printk("Do_ATAPI_CMD: error buffer is too big\n");
return NDAS_ERROR_INVALID_PARAMETER ;
}
// buffer accessibility check
if((tbuf = cgc->buffer)){
cgc->buffer = kmalloc(cgc->buflen, GFP_KERNEL);