SATA DVD support under 2.6.15

[Stefan Srdic <ssrdic@shaw.ca>]

hi,   I've recently installed Etch on my Toshiba Satallite M40. The
installation was a little rough, I had to manipulate the modules in
expert mode in order for the installation to detect my DVD drive and
complete the installation.

Since the installation I've had to compile a new kernel along with a few
patches in order to get my network card and MMC/SD controller to
function. So far everything works except for my DVD drive.

>From what I've read on the net, libata.h needs to be edited in order to
support ATAPI. I've tried to define a thing or two in libata.h with no
success:

#undef ATA_ENABLE_PATA          /* define to enable PATA support in some
                                 * low-level drivers */
#undef ATAPI_ENABLE_DMADIR      /* enables ATAPI DMADIR bridge support */

Changed to:

#define ATA_ENABLE_PATA          /* define to enable PATA support in some
                                 * low-level drivers */
#define ATAPI_ENABLE_DMADIR      /* enables ATAPI DMADIR bridge support */



I've even tried to pass the arguments libata.atapi_enable=1 and
atapi_enable=1 to the kernel through lilo with no success. So far, the
best that I could manage was this:
libata version 1.20 loaded.
ata_piix 0000:00:1f.2: version 1.05
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI Interrupt 0000:00:1f.2[B] -> Link [LNKD] -> GSI 11 (level,
low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0x1100 irq 14
ata1: dev 0 cfg 49:2f00 82:746b 83:7d09 84:6023 85:7468 86:3c09 87:6023
88:203f
ata1: dev 0 ATA-6, max UDMA/100, 195371568 sectors: LBA48
ata1(0): applying bridge limits
ata1: dev 0 configured for UDMA/100
scsi0 : ata_piix
  Vendor: ATA       Model: TOSHIBA MK1031GA  Rev: AA20
  Type:   Direct-Access                      ANSI SCSI revision: 05
ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0x1108 irq 15
ata2: dev 0 cfg 49:0f00 82:0000 83:0000 84:0000 85:0000 86:0000 87:0000
88:0407
ata2: dev 0 ATAPI, max UDMA/33
ata2(0): applying bridge limits
ata2: dev 0 configured for UDMA/33
scsi1 : ata_piix
ata2(0): WARNING: ATAPI is disabled, device ignored.
SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB)
SCSI device sda: drive cache: write back
 sda: sda1 sda2 < sda5 >
sd 0:0:0:0: Attached scsi disk sda
sd 0:0:0:0: Attached scsi generic sg0 type 0
 
Can sombody please help me enable ATAPI devices under libata, I've only
found outdated documentation that is irrelavent for my kernel version.

Thanks