* disk/ata.c (grub_ata_wait_status): Replace by ...
(grub_ata_wait_not_busy): ... this function. Checks only BSY bit,
other status bits may be invalid while BSY is asserted.
(grub_ata_check_ready): New function.
(grub_ata_cmd): Removed.
(grub_ata_wait_drq): New function.
(grub_ata_strncpy): Remove inline.
(grub_ata_pio_read): Reduce to actual block transfer. BSY wait
and error check now done by grub_ata_wait_drq ().
(grub_ata_pio_write): Likewise.
(grub_atapi_identify): Set DEV before check for !BSY. Use
grub_ata_wait_drq () to wait for data.
(grub_ata_device_initialize): Add status register check to
detect missing SATA slave devices. Add debug messages.
(grub_atapi_wait_drq): Use grub_ata_wait_not_busy ().
(grub_atapi_packet): Set DEV before check for !BSY. Replace
transfer loop by grub_ata_pio_write ().
(grub_ata_identify): Set DEV before check for !BSY. Use
grub_ata_wait_drq () to wait for data.
(grub_ata_setaddress): Set DEV before check for !BSY.
(grub_ata_readwrite): Remove duplicate code, handle batch/rest and
read/write in one loop. Fix invalid command on write. Fix incomplete
command on (size % batch) == 0. Add missing error check after write of
last block. Add debug messages.
(grub_atapi_read): Replace transfer loop by grub_ata_pio_read ().
This is GRUB 2, the second version of the GRand Unified Bootloader.
GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more
robust, more powerful, and more portable.
See the file NEWS for a description of recent changes to GRUB 2.
See the file INSTALL for instructions on how to build and install the
GRUB 2 data and program files.
Please visit the official web page of GRUB 2, for more information.
The URL is <http://www.gnu.org/software/grub/grub.html>.
For now, there is not much documentation yet. Please look at the GRUB
Wiki <http://grub.enbug.org> for testing procedures.