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Alan Cox 5f519d7281 tty: expose new methods needed for drivers to get termios right 
This adds three new functions (or in one case to be more exact makes it
always available)

tty_termios_copy_hw

Copies all the hardware settings from one termios structure to the other.
This is intended for drivers that support little or no hardware setting

tty_termios_encode_baud_rate

Allows you to set the input and output baud rate in a termios structure.  A
driver is supposed to set the resulting baud rate from a request so most
will want to use this function to set the resulting input and output rates
to match the hardware values.  Internally it knows about keeping Bxxx
encoding when possible to maximise compatibility.

tty_encode_baud_rate

As above but for the tty's own current termios structure

I suspect this will initially need some tweaking as it gets enabled by
driver patches over the next few mm cycles so consider this lot -mm only
for the moment so it can stabilize and end up neat before it goes to base.

I've tried not to break any obscure architectures - if you get a speed you
can't represent the code will print warnings on non updated termios systems
but not break.

Once this is merged and seems sane I've got a growing pile of driver
updates to use it - notably for USB serial drivers.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2007-10-17 08:42:58 -07:00
..
agp convert ill defined log2() to ilog2() 2007-10-17 08:42:48 -07:00
drm video gfx: merge kconfig menus 2007-10-16 09:43:20 -07:00
hw_random x86_64: Geode HW Random Number Generator depends on X86_32 2007-07-21 18:37:13 -07:00
ip2 drivers/char/ip2/ip2main.c: kmalloc + memset conversion to kzalloc 2007-10-17 08:42:50 -07:00
ipmi Tweak /proc/ipmi removal 2007-10-17 08:42:51 -07:00
mwave
…
pcmcia Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
rio long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
tpm tpm: pay attention to IRQ info from PNP 2007-10-17 08:42:51 -07:00
watchdog mpc5200_wdt: __user annotations 2007-10-14 12:41:51 -07:00
.gitignore
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ChangeLog
…
Kconfig add CONFIG_VT_UNICODE 2007-10-17 08:42:56 -07:00
Makefile Correct Makefile rule for generating custom keymap 2007-10-08 16:06:51 -07:00
amiserial.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
apm-emulation.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
applicom.c
…
applicom.h
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briq_panel.c [POWERPC] Remove dead code for preventing pread() and pwrite() calls 2007-07-10 22:03:26 +10:00
cd1865.h
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consolemap.c unicode diacritics support 2007-10-17 08:42:52 -07:00
cp437.uni
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cs5535_gpio.c
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cyclades.c drivers/*: mark variables with uninitialized_var() 2007-07-17 16:23:19 -04:00
defkeymap.c_shipped unicode diacritics support 2007-10-17 08:42:52 -07:00
defkeymap.map
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digi1.h
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digiFep1.h
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digiPCI.h
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ds1286.c
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ds1302.c
…
ds1620.c
…
dsp56k.c long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
dtlk.c
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efirtc.c
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epca.c epca.c: reformat comments and coding style improvements 2007-10-17 08:42:50 -07:00
epca.h
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epcaconfig.h
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esp.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
generic_nvram.c
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generic_serial.c genericserial: remove bogus optimisation check and dead code paths 2007-07-16 09:05:51 -07:00
genrtc.c Char: genrtc, use wait_event_interruptible 2007-07-16 09:05:44 -07:00
hangcheck-timer.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
hpet.c Silent drivers/char/hpet.c build warnings on i386 2007-09-26 09:22:04 -07:00
hvc_beat.c [POWERPC] Init markings for hvc_beat 2007-08-17 11:01:50 +10:00
hvc_console.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
hvc_console.h
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hvc_iseries.c [POWERPC] init and exit markings for hvc_iseries 2007-07-22 21:30:59 +10:00
hvc_lguest.c lguest files should explicitly include asm/paravirt.h 2007-08-11 15:47:42 -07:00
hvc_rtas.c [POWERPC] Quiet section mismatch in hvc_rtas.c 2007-07-22 21:30:59 +10:00
hvc_vio.c
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hvc_xen.c xen: use the hvc console infrastructure for Xen console 2007-07-18 08:47:44 -07:00
hvcs.c [POWERPC] hvcs: Make some things static and const 2007-07-22 21:30:59 +10:00
hvsi.c
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i8k.c drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
ip27-rtc.c
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isicom.c Char: isicom, proper variables types 2007-07-17 10:23:10 -07:00
istallion.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
keyboard.c add CONFIG_VT_UNICODE 2007-10-17 08:42:56 -07:00
lcd.c [MIPS] Delete duplicate inclusion of <linux/delay.h>. 2007-08-27 02:16:59 +01:00
lcd.h
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lp.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
mbcs.c Clean up duplicate includes in drivers/char/ 2007-10-17 08:42:48 -07:00
mbcs.h mbcs: Remove lots of global symbols 2007-07-19 10:04:43 -07:00
mem.c mm: bdi init hooks 2007-10-17 08:42:45 -07:00
misc.c Make /proc/misc use seq_list_xxx helpers 2007-07-16 09:05:42 -07:00
mmtimer.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00
moxa.c Char: moxa, eliminate busy waiting 2007-07-17 10:23:10 -07:00
mspec.c Memoryless nodes: Uncached allocator updates 2007-10-16 09:42:58 -07:00
mxser.c serial: remove termios checks from various old char serial drivers 2007-07-16 09:05:52 -07:00
mxser.h mxser: Remove use of dead TTY_FLIPBUF_SIZE definition 2007-10-17 08:42:52 -07:00
mxser_new.c serial: remove termios checks from various old char serial drivers 2007-07-16 09:05:52 -07:00
mxser_new.h
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n_hdlc.c n_hdlc.c: fix check-after-use 2007-10-17 08:42:55 -07:00
n_r3964.c Char: n_r3964, use wait_event_interruptible 2007-07-16 09:05:44 -07:00
n_tty.c Audit: add TTY input auditing 2007-07-16 09:05:47 -07:00
nsc_gpio.c
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nvram.c COBALT: remove all references to Cobalt NVRAM 2007-07-16 09:05:47 -07:00
nwbutton.c
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nwbutton.h
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nwflash.c
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pc8736x_gpio.c
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ppdev.c Clean up duplicate includes in drivers/char/ 2007-10-17 08:42:48 -07:00
ps3flash.c ps3: FLASH ROM Storage Driver 2007-07-21 17:49:16 -07:00
pty.c PTY: add kernel parameter to overwrite legacy pty count 2007-10-12 14:51:09 -07:00
random.c [TCP]: secure_tcp_sequence_number() should not use a too fast clock 2007-10-01 21:01:24 -07:00
raw.c cdev: remove unneeded setting of cdev names 2007-10-12 14:51:02 -07:00
riscom8.c Char: riscom8, eliminate busy loop 2007-07-17 10:23:10 -07:00
riscom8.h long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
riscom8_reg.h
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rocket.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
rocket.h
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rocket_int.h
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rtc.c x86_64: Untangle asm/hpet.h from asm/timex.h 2007-07-21 18:37:08 -07:00
scc.h
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scx200_gpio.c
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selection.c Kernel utf-8 handling 2007-07-16 09:05:46 -07:00
ser_a2232.c
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ser_a2232.h
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ser_a2232fw.ax
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ser_a2232fw.h
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serial167.c m68k: remove empty ->setup is several consoles 2007-07-20 08:24:49 -07:00
snsc.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
snsc.h
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snsc_event.c
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sonypi.c ACPI: Schedule /proc/acpi/event for removal 2007-08-23 15:20:26 -04:00
specialix.c Char: specialix, remove busy waiting 2007-07-17 10:23:10 -07:00
specialix_io8.h
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stallion.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
sx.c sx: switch subven and subid values 2007-07-10 17:51:13 -07:00
sx.h long vs. unsigned long - low-hanging fruits in drivers 2007-10-14 12:41:51 -07:00
sxboards.h
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sxwindow.h
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synclink.c Clean up duplicate includes in drivers/char/ 2007-10-17 08:42:48 -07:00
synclink_gt.c synclink_gt endianness annotations 2007-10-14 12:41:51 -07:00
synclinkmp.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
sysrq.c add CONFIG_VT_UNICODE 2007-10-17 08:42:56 -07:00
tb0219.c
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tipar.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
tlclk.c
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toshiba.c
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tty_audit.c Audit: add TTY input auditing 2007-07-16 09:05:47 -07:00
tty_io.c tty: dont needlessly cast kmalloc() return value 2007-08-23 21:39:41 -07:00
tty_ioctl.c tty: expose new methods needed for drivers to get termios right 2007-10-17 08:42:58 -07:00
vc_screen.c
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viocons.c
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viotape.c Convert from class_device to device in drivers/char 2007-10-12 14:51:04 -07:00
vme_scc.c m68k: remove empty ->setup is several consoles 2007-07-20 08:24:49 -07:00
vr41xx_giu.c [MIPS] Separate platform_device registration for VR41xx GPIO 2007-07-12 17:41:15 +01:00
vt.c add CONFIG_VT_UNICODE 2007-10-17 08:42:56 -07:00
vt_ioctl.c add CONFIG_VT_UNICODE 2007-10-17 08:42:56 -07:00