Commit graph

379 commits

Author SHA1 Message Date
Aaro Koskinen
d42bb0fbd9 staging: xgifb: delete bogus video RAM configuration
The driver reconfigures DRAM size register to 8M (regardless what the
actual size was) once the init has been completed, overwriting the
correct value written during the early init. As a result if the driver
is unloaded and reloaded, the user will be limited to 8M video memory
and may lose some of the available video modes.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13 20:41:57 -07:00
Aaro Koskinen
98f4eade14 staging: xgifb: setup initial video RAM size for systems without BIOS
On embedded systems without a BIOS, the DRAM sizing register is 0 after
the boot, and the driver thinks we have only 1 MB video memory. On such
cases, use the PCI window size for the initial size. This information
is needed only to create the I/O mapping - the driver will later detect
and configure the memory size correctly. Limit the size to 16 MB as it
should be sufficient for all supported video modes.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-13 20:41:56 -07:00
Aaro Koskinen
6b2a7e0c9b staging: xgifb: prevent video RAM size exceeding PCI window size
Add a sanity check for the video RAM size. It should fit into the
PCI window.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 09:47:09 -07:00
Aaro Koskinen
a09f347c6c staging: xgifb: validate the mode against video memory size
It's possible to select video mode that exceeds the available video
memory. This is potentially dangerous, fix by adding a check.

The patch fixes system hangs seen occasionally when playing random videos
with mplayer.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-12 09:45:58 -07:00
Aaro Koskinen
a7e46d8b5c staging: xgifb: delete redundant casts
Delete some redundant casts.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
e8cb03d422 staging: xgifb: use correct type for VBVCLKData
Use correct type to eliminate casting.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
8951dadc97 staging: xgifb: delete ISXPDOS
Delete unneeded flag.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
d21222d186 staging: xgifb: mark constant data with const
Mark some data tables as const.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
073b61e8c1 staging: xgifb: access static data tables directly
Access some data tables directly instead of using pointers.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
d3ae5762c6 staging: xgifb: use "else if"
Use "else if" when possible to reduce nesting.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
14f7c11187 staging: xgifb: delete XGI_LCDDataTablStruct
Delete an unused structure.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
898df16401 staging: xgifb: delete LCDLenList
LCDLenList is redundant. It's only used for modifying a write-only stack
variable. Delete also related #defines.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
378fd8a582 staging: xgifb: XGI_GetLcdPtr: delete dead code
Only table values 0..5 are ever used.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:17 -07:00
Aaro Koskinen
bc9ffcc2c6 staging: xgifb: delete Chrontel 7017 LCD data
Delete unused Chrontel 7017 LCD data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
18ba866bb4 staging: xgifb: use a real pointer for TV DATAPTR
Replace DATAPTR numbers with a real pointer to make code simpler.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
2457254560 staging: xgifb: use proper typing for TV data
There's a dangerous cast from XGI330_TVDataStruct to SiS_TVData. Use
SiS_TVData everywhere, also the data can be made const.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
6265ee4c0b staging: xgifb: delete Chrontel TV data
Delete unused Chrontel TV data.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
56d276cad4 staging: xgifb: XGI_GetTVPtr: drop the table parameter
Only one TV data table is used by the driver, delete unneeded complexity.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
4c047ac461 staging: xgifb: avoid copy-pasting LCD data
Share the common data tables instead of having the same data in multiple
tables.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
4d8f5ca7d2 staging: xgifb: delete redundant chip type check
All chip type values are covered by (chip >= XG20 || chip >= XG40).

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
c62c517e51 staging: xgifb: delete some unused #defines
Delete some unused #defines.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
31fb40fd13 staging: xgifb: delete IF_DEF_LCDA
IF_DEF_LCDA is always true.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:16 -07:00
Aaro Koskinen
6e90d0570d staging: xgifb: delete IF_DEF_ExpLink
Delete a flag which is never set.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:15 -07:00
Aaro Koskinen
886230c12d staging: xgifb: replace XGI_XG21SetPanelDelay() with mdelay()
Eliminate a trivial wrapper function.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:15 -07:00
Aaro Koskinen
2fd002bc7b staging: xgifb: document some LVDS data delay values
Document some delay values based on the comments in
XGI_XG21SetPanelDelay().

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-10 15:48:15 -07:00
Dan Carpenter
2f123cbcf0 Staging: xgifb: fix bitwise vs logical bug
This is a static checker fix and not something I can test.  The intent
of the code here is to set some bit flags.  For a logical OR the ">> 1"
shift wouldn't make a difference.  So it should be using a bitwise OR.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-14 16:46:33 -07:00
Andy Shevchenko
977310bbc3 staging: xgifb: print small buffers via %*ph
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-13 19:23:18 -07:00
Miguel Gómez
f6002041af Staging: xgifb: Remove useless condition.
Remove last if branch in XGIfb_do_set_var(), as it has no action assigned.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:32 -07:00
Miguel Gómez
3bcc246016 Staging: xgifb: Fix coding style.
Fix small coding style warnings in several files.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:32 -07:00
Miguel Gómez
e123e46630 Staging: xgifb: Rework some conditions in XGI_SetCRT2ModeRegs().
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:31 -07:00
Miguel Gómez
b1bf998c67 Staging: xgifb: Rework conditions in XGI_EnableBridge().
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:31 -07:00
Miguel Gómez
470c533896 Staging: xgifb: Rework conditions in XGI_SetLockRegs().
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:31 -07:00
Miguel Gómez
3339db8a0c Staging: xgifb: Refactor XGI_GetCRT2ResInfo().
Use a goto to remove one level of indentation, fixing style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:31 -07:00
Miguel Gómez
f93173515f Staging: xgifb: Rework conditions in XGI_GetVBInfo().
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:30 -07:00
Miguel Gómez
7eec23a7b3 Staging: xgifb: Refactor XGI_GetVBType().
Refactor XGI_GetVBType() to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:30 -07:00
Miguel Gómez
3b175621a2 Staging: xgifb: Refactor XGI_AjustCRT2Rate().
Refactor some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:30 -07:00
Miguel Gómez
661a6384f8 Staging: xgifb: Rework conditions in XGI_SetATTRegs().
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:30 -07:00
Miguel Gómez
8afb7d3528 Staging: xgifb: Remove useless always true condition.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:29 -07:00
Miguel Gómez
4362f5becd Staging: xgifb: Remove unneeded var and condition in XGIfb_search_vesamode().
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:29 -07:00
Miguel Gómez
791fef1b30 Staging: xgifb: Simplify XGIfb_GetXG21DefaultLVDSModeIdx().
Simplify the code and make it more readable.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:29 -07:00
Miguel Gómez
1cd1703081 Staging: xgifb: Remove useless switch in XGIfb_detect_VB().
The switch performs no action so it can be removed.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:29 -07:00
Miguel Gómez
be25aef0ca Staging: xgifb: Improve debug strings.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:28 -07:00
Miguel Gómez
61439fa873 Staging: xgifb: Remove unused struct _chswtable.
Struct _chswtable and the variable mychswtable are not used anywhere, so remove
them.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:28 -07:00
Miguel Gómez
469b43c0a6 Staging: xgifb: Remove LCDA detection in xgifb_probe().
The piece of code that checks for LCDA in xgifb_probe() just checks for some
register values but doesn't really do anything in response to them (the actions
that should be executed are commented).
As nothing is really being done, the code can be safely removed.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:28 -07:00
Miguel Gómez
c2dd691eed Staging: xgifb: Remove unneeded XGI_LCD_TYPE enumeration.
LCD_TYPEs are taken from drivers/video/sis/sis.h, so this enumeration is not
needed.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:27 -07:00
Miguel Gómez
949eb0aeb9 Staging: xgifb: Comment cleaning.
Remove commented code and useless comments. Leave only those with relevant
hints to the code.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-11 16:59:27 -07:00
Miguel Gómez
1918570388 Staging: xgifb: Replace pr_* with dev_* when possible.
Replace pr_* calls with dev_* ones when the device structure is available.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18 17:20:21 -07:00
Miguel Gómez
e054102b9f Staging: xgifb: Fix sparse warnings.
Add include files with function definitions to avoid sparse warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18 17:20:21 -07:00
Miguel Gómez
448810662a Staging: xgifb: Remove printk usage.
Replace meaninful printks with pr_debug and remove useless ones.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18 17:20:21 -07:00
Miguel Gómez
47cee13d1d Staging: xgifb: Remove XGIFAIL() macro and its calls.
XGIFAIL() prints a message and returns a value, but it's used only in one
place. Better remove it and replace the call with the macro content.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-18 17:20:20 -07:00