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path: root/drivers/usb/misc/sisusbvga
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* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* Remove all inclusions of <linux/config.h>Dave Jones2006-10-042-2/+0
| | | | | | kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
* USB: Make file operations structs in drivers/usb const.Luiz Fernando N. Capitulino2006-09-271-1/+1
| | | | | | | | | Making structs const prevents accidental bugs and with the proper debug options they're protected against corruption. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Support for USB20SVGA-WH & USB20SVGA-DGNobuhiro Iwamatsu2006-09-071-0/+2
| | | | | | | | | | | | | | | | This patch is support USB20SVGA-WH & USB20SVGA-DG of the sisusb device. As for this device, Device ID is different according to the color of the product. A blue device is supported. However, a green, white device is not supported. http://www.lubic.jp/uv_method.html ( Japanese only ) . Green, white USB20SVGA comes to work by applying the patch . And, it be able to use three USB20SVGA( Blue , Green , White ). Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] USB: sisusbvga: possible cleanupsAdrian Bunk2006-06-215-72/+28
| | | | | | | | | | | | | | This patch contains the following possible cleanups: - make needlessly global functions static - function and struct declarations belong into header files - make SiS_VCLKData const - #if 0 the following unused global functions: - sisusb.c: sisusb_writew() - sisusb.c: sisusb_readw() - sisusb_init.c: SiSUSB_GetModeID() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: convert the semaphores in the sisusb driver to mutexesArjan van de Ven2006-06-213-105/+107
| | | | | | | | | | | | | From: Arjan van de Ven <arjan@infradead.org> Convert the semaphores-used-as-mutex to mutexes in the sisusb video driver; this required manual checking due to the "return as locked" stuff in this driver, but the ->lock semaphore is still used as mutex in the end. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Cc: Thomas Winischhofer <winischhofer.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: remove LINUX_VERSION_CODE macro usagePekka Enberg2006-03-201-8/+0
| | | | | | | | This patch removes unnecessary LINUX_VERSION_CODE macro usage from drivers/usb/. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: kzalloc in sisusbvgaOliver Neukum2006-03-201-3/+2
| | | | | | | | | this does two things: - use kzalloc where appropriate - correct error return codes in ioctl Signed-off-by: Oliver Neukum <oliver@neukum.name> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: mark various usb tables constArjan van de Ven2006-01-041-2/+2
| | | | | | | | | | patch below marks various USB tables and variables as const so that they end up in .rodata section and don't cacheline share with things that get written to. For the non-array variables it also allows gcc to optimize more. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: drivers/usb/misc/sisusbvga/sisusb.c: remove dead codeAdrian Bunk2006-01-041-6/+0
| | | | | | | The Coverity checker found this dead code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: remove .owner field from struct usb_driverGreg Kroah-Hartman2006-01-041-1/+0
| | | | | | It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reasonOlaf Hering2005-11-094-3/+1
| | | | | | | | | | | | | | | | | | | | | This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] USB: sisusb warning fixAndrew Morton2005-10-281-1/+1
| | | | | | | | | | | drivers/usb/misc/sisusbvga/sisusb.c: In function `sisusb_reset_text_mode': drivers/usb/misc/sisusbvga/sisusb.c:2461: warning: assignment discards qualifiers from pointer target type Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/usb/misc/sisusbvga/sisusb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
* [PATCH] devfs: Remove the mode field from usb_class_driver as it's no longer ↵Greg Kroah-Hartman2005-10-281-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | needed Also fixes all drivers that set this field, and removes some other devfs specfic USB logic. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/usb/class/usblp.c | 3 +-- drivers/usb/core/file.c | 19 ++++--------------- drivers/usb/image/mdc800.c | 3 +-- drivers/usb/input/aiptek.c | 2 +- drivers/usb/input/hiddev.c | 3 +-- drivers/usb/media/dabusb.c | 3 +-- drivers/usb/misc/auerswald.c | 3 +-- drivers/usb/misc/idmouse.c | 5 ++--- drivers/usb/misc/legousbtower.c | 5 ++--- drivers/usb/misc/rio500.c | 3 +-- drivers/usb/misc/sisusbvga/sisusb.c | 5 ----- drivers/usb/misc/usblcd.c | 9 ++++----- drivers/usb/usb-skeleton.c | 3 +-- include/linux/usb.h | 7 ++----- 14 files changed, 22 insertions(+), 51 deletions(-)
* [PATCH] USB: sisusb[vga] updateThomas Winischhofer2005-09-128-55/+4231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | here is a new and extended version of the sisusbvga (previously: sisusb) driver. The patch is against 2.6.13 and updates the driver to version 0.0.8. Additions include complete VGA/EGA text console support and a build-in display mode infrastructure for userland applications that don't know about the graphics internals. Fixes include some BE/LE issues and a get/put_dev bug in the previous version. Other changes include a change of the module name from "sisusb" to "sisusbvga". The previous one was too generic IMHO. Please note that the patch also affects the Makefile in drivers/video/console as the driver requires the VGA 8x16 font in case the text console part is selected. Heavily tested, as usual. Please apply. One thing though: I already prepared for removal of the "mode" field and the changed "name" field in the usb_class_driver structure. This will perhaps need some refinement depending on whether you/Linus merge the respective core changes before or after 2.6.14. Signed-off-by: Thomas Winischhofer <thomas@winischhofer.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: URB_ASYNC_UNLINK flag removed from the kernelAlan Stern2005-09-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 29 July 2005, Cambridge, MA: This afternoon Alan Stern submitted a patch to remove the URB_ASYNC_UNLINK flag from the Linux kernel. Mr. Stern explained, "This flag is a relic from an earlier, less-well-designed system. For over a year it hasn't been used for anything other than printing warning messages." An anonymous spokesman for the Linux kernel development community commented, "This is exactly the sort of thing we see happening all the time. As the kernel evolves, support for old techniques and old code can be jettisoned and replaced by newer, better approaches. Proprietary operating systems do not have the freedom or flexibility to change so quickly." Mr. Stern, a staff member at Harvard University's Rowland Institute who works on Linux only as a hobby, noted that the patch (labelled as548) did not update two files, keyspan.c and option.c, in the USB drivers' "serial" subdirectory. "Those files need more extensive changes," he remarked. "They examine the status field of several URBs at times when they're not supposed to. That will need to be fixed before the URB_ASYNC_UNLINK flag is removed." Greg Kroah-Hartman, the kernel maintainer responsible for overseeing all of Linux's USB drivers, did not respond to our inquiries or return our calls. His only comment was "Applied, thanks." Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] size_t portability fixes - drivers/usbAl Viro2005-04-261-1/+1
| | | | | | | size_t is zu, ssize_t is zd... Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] USB: new SiS device idThomas Winischhofer2005-04-221-0/+1
| | | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: new SIS device idThomas Winischhofer2005-04-181-1/+2
| | | | | | | | | | the attached patch adds another USB device ID to the list. Seems the device is known under multiple IDs. Signed-off-by: Thomas Winischhofer <thomas@winischhofer.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-164-0/+3443
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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