PWN-Hunter/android_kernel_xiaomi_sdm845
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78ab88f04f
android_kernel_xiaomi_sdm845/drivers/ata
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Tejun Heo 78ab88f04f libata: improve post-reset device ready test 
Some controllers (jmb and inic162x) use 0x77 and 0x7f to indicate that
the device isn't ready yet.  It looks like they use 0xff if device
presence is detected but connection isn't established.  0x77 or 0x7f
after connection is established and use the value from signature FIS
after receiving it.

This patch implements ata_check_ready(), which takes TF status value
and determines whether the port is ready or not considering the above
and other conditions, and use it in @check_ready() functions.  This is
safe as both 0x77 and 0x7f aren't valid ready status value even though
they have BSY bit cleared.

This fixes hot plug detection failures which can be triggered with
certain drives if they aren't already spun up when the data connector
is hot plugged.

Tested on sil, sil24, ahci (jmb/ich), piix and inic162x combined with
eight drives from all major vendors.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-05-06 11:32:02 -04:00
..
ahci.c libata: improve post-reset device ready test 2008-05-06 11:32:02 -04:00
ata_generic.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
ata_piix.c ata_piix: add Asus Eee 701 controller to short cable list 2008-04-25 01:11:39 -04:00
Kconfig [MIPS] ATA: Rename routerboard 500 to 532 2008-04-29 02:16:25 -04:00
libata-acpi.c libata-acpi.c: remove unneeded #if's 2008-04-25 00:45:52 -04:00
libata-core.c libata: More TSSTcorp pain, keep in sync with legacy IDE 2008-04-29 17:41:13 -04:00
libata-eh.c libata-eh set tf flags in NCQ EH result_tf 2008-04-25 01:11:37 -04:00
libata-pmp.c libata: implement PMP helpers 2008-04-17 15:44:25 -04:00
libata-scsi.c libata-scsi: improve rbuf handling for simulated commands 2008-04-29 02:17:03 -04:00
libata-sff.c libata: improve post-reset device ready test 2008-05-06 11:32:02 -04:00
libata.h libata-scsi: clean up inquiry / mode sense related functions 2008-04-29 02:16:37 -04:00
Makefile [MIPS] ATA: Rename routerboard 500 to 532 2008-04-29 02:16:25 -04:00
pata_acpi.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ali.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_amd.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_artop.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_at32.c ATA/IDE: fix platform driver hotplug/coldplug 2008-04-25 00:45:04 -04:00
pata_atiixp.c [libata] pata_atiixp: fix PIO timing data misprogramming 2008-04-29 17:39:45 -04:00
pata_bf54x.c Fix bug - Implement bfin ata interrupt handler to avoid "irq 68 nobody cared" (v2) 2008-04-29 02:17:18 -04:00
pata_cmd64x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cmd640.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_cs5520.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5530.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5535.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cs5536.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_cypress.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_efar.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt3x2n.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt3x3.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt37x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_hpt366.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_icside.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_isapnp.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_it821x.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_it8213.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ixp4xx_cf.c ATA/IDE: fix platform driver hotplug/coldplug 2008-04-25 00:45:04 -04:00
pata_jmicron.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_legacy.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_marvell.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_mpc52xx.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_mpiix.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_netcell.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ninja32.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_ns87410.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_ns87415.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_of_platform.c Rename: linux/pata_platform.h to linux/ata_platform.h 2008-02-06 06:54:17 -05:00
pata_oldpiix.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_opti.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_optidma.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_pcmcia.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_pdc202xx_old.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_pdc2027x.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_platform.c ATA/IDE: fix platform driver hotplug/coldplug 2008-04-25 00:45:04 -04:00
pata_qdi.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pata_radisys.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_rb532_cf.c [MIPS] ATA: Rename routerboard 500 to 532 2008-04-29 02:16:25 -04:00
pata_rz1000.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sc1200.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_scc.c libata: move link onlineness check out of softreset methods 2008-04-17 15:44:25 -04:00
pata_serverworks.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sil680.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sis.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_sl82c105.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_triflex.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
pata_via.c pata_via: Fix 6410 misdetect 2008-04-29 17:41:10 -04:00
pata_winbond.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
pdc_adma.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_fsl.c typo in sata_fsl 2008-04-28 10:03:31 -07:00
sata_inic162x.c libata: kill dead code paths in reset path 2008-04-17 15:44:25 -04:00
sata_mv.c sata_mv: Improve naming of main_irq cause/mask identifiers 2008-04-29 02:17:14 -04:00
sata_nv.c sata_nv: make hardreset return -EAGAIN on success 2008-04-25 00:45:48 -04:00
sata_promise.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sata_promise.h libata annotations and fixes 2008-01-23 05:24:15 -05:00
sata_qstor.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_sil24.c libata: move link onlineness check out of softreset methods 2008-04-17 15:44:25 -04:00
sata_sil.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sata_sis.c sata_sis: SCR accessors return -EINVAL when requested SCR isn't available 2008-04-24 23:42:47 -04:00
sata_svw.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sata_sx4.c libata: add qc_fill_rtf port operation 2008-04-17 15:44:23 -04:00
sata_uli.c libata: rename SFF functions 2008-04-17 15:44:21 -04:00
sata_via.c libata: restructure SFF post-reset readiness waits 2008-04-17 15:44:22 -04:00
sata_vsc.c libata: rename SFF port ops 2008-04-17 15:44:22 -04:00
sis.h libata: PATA-mode fixes for sis_sata 2007-07-02 10:17:42 -04:00