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path: root/drivers/serial/bfin_5xx.c
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2008-08-05blackfin: Fix compile failure in tty codeAlan Cox1-1/+1
Blackfin peers into the ldisc in an odd way for IRDA snooping which therefore got missed. Simple enough fix. Closes bug #11233 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-21Fix compile errors in SGI console drivers (linux-next tree)Takashi Iwai1-5/+5
The below is the patch to replace blindly all possible places, including Jack's fixes. Signed-off-by: Takashi Iwai <tiwai@suse.de> (Reviewed and checked rather than blindly added) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-19Blackfin Serial Driver: Use timer to poll CTS PIN instead of workqueue.Sonic Zhang1-22/+18
This allows other threads to run when the serial driver polls the CTS PIN in a loop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-06-07Blackfin serial driver: fix up tty core set_ldisc API change breakage bugGraf Yang1-5/+5
This is the patch that follows Linus's modification about set_ldisc. Graf has built and tested it on BF537 using Linus's git Tree. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-06-03Blackfin Serial Driver: Clean up BF54x macro in blackfin UART driver.Sonic Zhang1-25/+5
Hide difference in head file. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-07Blackfin Serial Driver: abstract away DLAB differences into headerMike Frysinger1-33/+7
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-05-07Blackfin Serial Driver: macro away the IER differences between processorsMike Frysinger1-54/+4
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-30serial: replace remaining __FUNCTION__ occurrencesHarvey Harrison1-2/+2
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-25Blackfin Serial Driver: fix bug - use mod_timer to replace only add_timer.Sonic Zhang1-5/+2
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4045 If adding timer in both timer handler and rx interrupt, a timer may be added when it is till in the pending list. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24Blackfin Serial Driver: the uart break anomaly has been given its own ↵Mike Frysinger1-6/+3
number, so switch to it Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24Blackfin Serial Driver: use BFIN_UART_NR_PORTS to help SIR driver in uart port.Graf Yang1-3/+5
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-23Blackfin Serial Driver: Fix bug - kernel hangs when accessing uart 0 on ↵Sonic Zhang1-4/+0
bf537 when booting u-boot and linux on uart 1 Wait only when this UART is enabled. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3995 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-24Blackfin Serial Driver: punt unused lsr variableMike Frysinger1-1/+1
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-29Blackfin Serial Driver: Enable IR function when user application (irattach ↵Graf Yang1-0/+26
/dev/ttyBFx -s) call TIOCSETD ioctl with line discipline N_IRDA Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-16serial: fix platform driver hotplug/coldplugKay Sievers1-0/+2
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable serial platform drivers, to re-enable auto loading. NOTE that Kconfig for some of these drivers doesn't allow modular builds, and thus doesn't match the driver source's unload support. Presumably their unload code is buggy and/or weakly tested... [dbrownell@users.sourceforge.net: more drivers, registration fixes] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-29Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.Sonic Zhang1-16/+7
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3910 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up ↵Sonic Zhang1-22/+29
processes. Also make rx dma buffer work as a loop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-25Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before ↵Sonic Zhang1-14/+18
starting tx dma. http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-02-02[Blackfin] serial driver: Add flow control support to bf54xSonic Zhang1-0/+12
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-02-02[Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as wellSonic Zhang1-11/+5
https://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3858 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-01-11[Blackfin] serial driver: use simpler comment headers and strip out ↵Mike Frysinger1-23/+4
information that is maintained in the scm's log Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-24[Blackfin] serial driver: rework break flood anomaly handling to be more ↵Mike Frysinger1-14/+52
robust/realistic about what we can actually work around Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-24[Blackfin] serial driver: fix bug - cache the bits of the LSR on systems ↵Mike Frysinger1-3/+7
where the LSR is read-to-clear Cache the bits of the LSR on systems where the LSR is read-to-clear so that we can safely read the LSR in random places. this fixes older parts where break/framing/parity/overflow was not being detected at all in PIO mode, and this fixes newer parts where break/framing/parity/overflow was being reported all the time without being cleared. Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-23[Blackfin] serial driver: fix bug - should not wait for the TFI bit, just ↵Sonic Zhang1-3/+0
clear it when tx stop. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21[Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to ↵Sonic Zhang1-3/+4
console on shell restart http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=2920 Fix by increasing buffer tail immediately before starting tx dma. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21[Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.Sonic Zhang1-0/+1
Kernel crash for the serial driver in DMA mode: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3679 Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-12-21[Blackfin] serial driver: Clean up UART DMA code.Sonic Zhang1-15/+10
Start next TX DMA in tx dma handler instead of rx timer handler. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-11-21Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle ↵Sonic Zhang1-48/+14
input very quickly Output as many bytes as possible in PIO tx handler. This reduce the number of tx interrupts and shorten the delay to handle rx interrupt. So, rx overrun disappears. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2008-01-22[Blackfin] arch: set_bfin_dma_config shouldnt set SYNC or RESTART by default ↵Michael Hennerich1-2/+4
- add argument or option Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin serial driver: pending a unique anomaly id, tie the break flood ↵Mike Frysinger1-22/+21
issue to ANOMALY_05000230 pending a unique anomaly id, tie the break flood issue to ANOMALY_05000230 as when that was fixed, the fallout also fixed the break flood Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: update kgdb patchSonic Zhang1-17/+25
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: Initial patch to add earlyprintk supportRobin Getz1-28/+101
This allows debugging of problems which happen eary in the kernel boot process (after bootargs are parsed, but before serial subsystem is fully initialized) Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25Blackfin arch: use the [CS]SYNC() macros which include anomaly workarounds ↵Mike Frysinger1-7/+7
rather than __builtin_bfin_[cs]sync() Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin serial driver: supporting BF548-EZKIT serial portRoy Huang1-3/+74
Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-29Blackfin arch: kgdb specific codeSonic Zhang1-0/+105
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin serial driver: decouple PARODD and CMSPAR checking from PARENBMike Frysinger1-6/+5
as the termios info does not stipulate that the former are dependent on the latter Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin serial driver: actually implement the break_ctl() functionMike Frysinger1-0/+8
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin serial driver: ignore framing and parity errorsMike Frysinger1-0/+2
if we get a break signal, we want to ignore framing and parity errors because those will always be set (by nature of the signal) Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin serial driver: hook up our UARTs STP bit with userspaces CMSPARMike Frysinger1-0/+2
so we can now do spaced/marked parity Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-05-21Blackfin serial driver: implement support for ignoring parity/break errorsMike Frysinger1-36/+61
properly setting up and respecting the read_status_mask / ignore_status_mask fields of the serial core Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin serial driver: fix overhead issueAubrey Li1-11/+17
Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07blackfin: serial driverBryan Wu1-0/+1012
This patch implements the driver necessary use the Analog Devices Blackfin processor's Serial Port. Signed-off-by: Bryan Wu <bryan.wu@analog.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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