In cdrom_newpc_intr():
* cleanup variables in the 'transfer data' loop
In cdrom_rw_intr():
* rename 'sectors_to_transfer' to 'thislen'
* rename 'this_transfer' to 'blen'
* keep number of bytes (instead of sectors) in 'thislen' and 'blen'
* call 'xferfunc' only once for 'blen'
* cache 'rq->buffer' in 'ptr' variable
* check for 'rq->bio' before setting 'ptr' and 'blen'
* check for 'ptr' instead of 'rq->current_nr_sectors'
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Use the fact that for the first loop rq->current_nr_sectors is always
set and unify moving to the next buffer for read/write requests.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add handling of read requests to cdrom_start_write(), rename it
to cdrom_start_rw() and remove no longer needed cdrom_start_read().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add handling of write requests to cdrom_start_read_continuation(),
rename it to cdrom_start_rw_cont() and remove no longer needed
cdrom_start_write_cont().
* Remove redundant '(rq->sector & (sectors_per_frame - 1)' check.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add handling of read requests to cdrom_write_intr(), rename it
to cdrom_rw_intr() and remove no longer needed cdrom_read_intr().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add ide_cd_drain_data() and use it in cdrom_{buffer_sectors,read_intr}()
(as a nice side-effect this cuts 0.5kB of code from ide-cd.o).
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add REQ_TYPE_{SENSE,ATA_PC} requests handling to cdrom_do_block_pc()
and remove cdrom_do_packet_command().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
cdrom_do_pc_continuation() is now identical to cdrom_do_newpc_cont()
so just always use the latter function.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add handling of REQ_TYPE_{SENSE,ATA_PC} requests to cdrom_newpc_intr()
(please note that these requests never have 'bio' attached to them
and they never use DMA), then remove no longer needed cdrom_pc_intr().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
There is no need for it anylonger and ide_set_handler() complains
if ->handler is not NULL anyway.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This is a preparation to move code handling cdrom.c IOCTLs out of ide-cd.c.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Move lba_to_msf() and msf_to_lba() to <linux/cdrom.h>
(use 'u8' type instead of 'byte' while at it).
* Remove msf_to_lba() copy from drivers/cdrom/cdrom.c.
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Rename ide-cd kernel module to ide-cd_mod in preparation to moving code out
from ide-cd.[c,h]. Add MODULE_ALIAS("ide-cd") to preserve compatibility.
* Move VERBOSE_IDE_CD_ERRORS code from ide-cd.[c,h] to ide-cd_verbose.c.
ide-cd_verbose.c is IDE subsystem independent and may be easily converted
into generic library usable by other drivers (i.e. libata) if needed.
* Add CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS config option to drivers/ide/Kconfig
replacing VERBOSE_IDE_CD_ERRORS define. Make this config option enabled by
default and visible only if CONFIG_EMBEDDED is defined.
before the patch:
text data bss dec hex filename
22841 360 1056 24257 5ec1 drivers/ide/ide-cd.o
after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y:
text data bss dec hex filename
22857 360 1056 24273 5ed1 drivers/ide/ide-cd_mod.o
after the patch w/ CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=n:
text data bss dec hex filename
15091 360 1056 16507 407b drivers/ide/ide-cd_mod.o
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Coding style fixes for VERBOSE_IDE_CD_ERRORS code.
* Add KERN_{ERR,CONT} printk() levels where needed.
This is a preparation for moving this code out of ide-cd.[c,h].
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Re-organize handling of quirky devices:
* Add struct cd_list_entry, ide_cd_quirks_list[] and ide_cd_flags() helper.
* Set flags returned by ide_cd_flags() in ide_cdrom_setup().
* Add IDE_CD_FLAG_VERTOS_{300_SDD,600_ESD} and IDE_CD_FLAG_SANYO_3CD flags.
* Move device quirks from ide_cdrom_setup() to ide_cd_quirks_list[].
* Rename IDE_CD_FLAG_NEC260 to IDE_CD_FLAG_PRE_ATAPI12 and handle
quirky Stingray 8X CD-ROM using ide_cd_quirks_list[].
* Add IDE_CD_FLAG_FULL_CAPS_PAGE flag and handle quirky ACER 50X CD-ROM
/ WPI 32X CD-ROM using ide_cd_quirk_list[].
* Add IDE_CD_FLAG_PLAY_AUDIO_OK flag and handle quirky MATSHITA DVD-ROMs
using ide_cd_quirks_list[].
* Add IDE_CD_FLAG_LE_SPEED_FIELDS flag and handle quirky ACER/AOpen 24X
CD-ROM using ide_cd_quirk_list[].
* Fix some comments about quirky devices while at it.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Use BCD2BIN()/BIN2BCD() macros from <linux/bcd.h>
and remove the local bcd2bin()/bin2bcd() inlines.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Remove unused ->{writing,reserved} fields from struct ide_cd_config_flags.
* Move ->max_speed from struct ide_cd_config_flags to struct cdrom_info.
* Move ->current_speed from struct ide_cd_state_flags to struct cdrom_info.
* Add defines for config and state flags.
* Add 'unsigned int cd_flags' to struct cdrom_info and use ->cd_flags
instead of ->{config,state}_flags.
* Remove no longer needed struct ide_cd_{config,state}_flags.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
While at it rename 'info' variable to 'cd' in
ide_cdrom_probe_capabilities() and ide_cdrom_setup().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Use CDC_* flags directly and remove redundant flags from ->config_flags.
While at it:
* Add KERN_CONT to printk()-s in ide_cdrom_probe_capabilities().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
ide_cd_probe() zeroes 'info' prior to calling ide_cdrom_setup() so there
is no need to explicitly zero 'info' fields in the latter function.
Ditto for fields of CDROM_STATE_FLAGS(), CDROM_CONFIG_FLAGS() and 'cdi'
(all are embedded in 'info').
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Make cdrom_newpc_intr() match cdrom_{read,write}_intr() w.r.t.
handling DMA errors:
* disable DMA before cdrom_decode_status() call
* log the device name and the type of the request (read/write)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
If drive still wants to transfer the data we need to pad the transfer
instead of just finishing the request.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Add ide_cd_pad_transfer() helper and use it in cdrom_[new]pc_intr()
and cdrom_{read,write}_check_ireason().
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Unify writing and reading handling in cdrom_pc_intr() using xfer_func_t.
There should be no functionality changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
