Since there's no way to autodetect panel modes, we're forced to hardcode them
in the driver and add a big fat #ifdef. The OLPC DCON needs a specific mode
line (at 1200x900). This adds it to both gxfb and lxfb.
(Jordan said: We could probably detect the panel mode, but there isn't any
reason to since the panel timings are well known and won't change. While OFW
detection would be good computer science fu, it would be a wasted effort since
its so easy to hard code them into the table.)
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Prior to suspend, we allocate and switch to a new VT; after suspend, we switch
back to the original VT. This can be slow, and is completely unnecessary if
the framebuffer we're using can restore video properly.
This adds a hook that allows drivers to select whether or not to do this vt
switch, and changes the gxfb driver to call this hook. It also adds a module
param to gxfb to allow controlling of the vt switch (defaulting to no switch).
(Note: I'm not convinced that console_sem is the best way to protect this, but
we should probably have some form of locking..)
[akpm@linux-foundation.org: build fix]
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds the ability to suspend/resume the gxfb driver, which includes:
- The addition of a Graphics Processor register table in gxfb.h, and
associated GP handling.
- Register and palette saving code; registers are stored in gxfb_par.
A few MSR values are saved as well.
- gx_powerup and gx_powerdown functions which restore/save registers and
enable/disable graphic engines.
- gxfb_suspend/gxfb_resume
Originally based on a patch by Jordan Crouse.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We want to stop sharing stuff with gx1fb; it makes little sense. There were
fields in geodefb_par that weren't being used, there was little point to the
DC/VP ops callbacks, etc. This implements the following:
- Create gxfb_par (based on geodefb_par), place it in gxfb.h
- Drop display_gx.h and video_gx.h. The last few patches moved most
stuff into gxfb.h anyways, so there was very little left.
- Drop the geode_{dc,vid}_ops stuff. Un-static functions, add
declarations to gxfb.h.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This continues the gxfb header cleanups. MSRs are defined in geode.h; the
specific bits we care about are defined in gxfb.h.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This creates read_dc/write_dc, read_vp/write_vp, and read_fp/write_fp for
reading and updating those registers. It creates gxfb.h to house these.
We also drop a no-op readl() from gx_set_mode. Other than that, there should
be no functionality change.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use a command line option (vram) rather than hardcoding the vram size. LxFB
already does this; it's useful for machines that can't query the BIOS for fb
size. This patch originated from David Woodhouse, was modified by Jordan
Crouse, and was then modified further by me.
This also adds some gxfb documentation in Documentation/fb.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Drop the class/class_mask stuff; it's unnecessary as long as the vendor and
device IDs match.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This cleans up a few MSR-using drivers in the following manner:
- Ensures MSRs are all defined in asm/geode.h, rather than in misc
places
- Makes the naming consistent; cs553[56] ones begin with MSR_,
GX-specific ones start with MSR_GX_, and LX-specific ones start
with MSR_LX_. Also, make the names match the data sheet.
- Use MSR names rather than numbers in source code
- Document the fact that the LX's MSR_PADSEL has the wrong value
in the data sheet. That's, uh, good to note.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use the right MSR and bits to detect if the GX is strapped for TFT or CRT
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for command line options for setting the mode and various
settings.
[akpm@osdl.org: cleanups]
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Support TFT panels by correctly setting up the flat panel registers
[akpm@osdl.org: cleanups]
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We cannot assume that the BIOS will be correctly setting up the hardware, so
set some bits in various display registers to enable video output. Allow an
advanced user to specify a frambuffer size, rather then probing the BIOS. All
of these fixes were prompted by the OLPC effort.
[akpm@osdl.org: cleanups]
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Rename a poorly worded PCI ID for the Geode GX and CS5535 companion chips.
The graphics processor and host bridge actually live in the northbridge on
the integrated processor, not in the companion chip.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a
function of the VT layer than the TTY one. Moving these to vt.h and vt_kern.h
allows all of the framebuffer and VT console drivers to remove their
dependency on tty.h.
[akpm@osdl.org: fix alpha build]
Signed-off-by: Jon Smirl <jonsmir@gmail.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Detaching fbcon allows individual drivers to be unloaded. However several
drivers call pci_disable_device() upon exit. This function will disable the
BAR's which will kill VGA text mode and/or affect X/DRM.
To prevent this, remove calls to pci_disable_device() from several drivers.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
A framebuffer driver for the display controller in AMD Geode GX processors
(Geode GX533, Geode GX500 etc.). Tested at 640x480, 800x600, 1024x768 and
1280x1024 at 8, 16, and 24 bpp with both CRT and TFT. No accelerated features
currently implemented and compression remains disabled.
This driver requires that the BIOS (or the SoftVG/Firmbase code in the BIOS)
has created an appropriate virtual PCI header.
Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
