linux/drivers/staging/comedi, branch v3.0

Staging: comedi: fix build breakages on some platforms

2011-06-27T21:43:34Z

Some platforms do not have virt_to_bus(), so properly depend on CONFIG_VIRT_TO_BUS for the Comedi drivers that need this function. Reported-by: Stephen Rothwell Signed-off-by: Greg Kroah-Hartman

Staging: Comedi: Build only on arches providing PAGE_KERNEL_NOCACHE

2011-06-27T21:19:20Z

On architectures that don't define PAGE_KERNEL_NOCACHE, the Comedi driver turns into tragedy: CC [M] drivers/staging/comedi/drivers.o drivers/staging/comedi/drivers.c: In function ‘comedi_buf_alloc’: drivers/staging/comedi/drivers.c:505:41: error: ‘PAGE_KERNEL_NOCACHE’ undeclared (first use in this function) drivers/staging/comedi/drivers.c:505:41: note: each undeclared identifier is rep orted only once for each function it appears in make[3]: *** [drivers/staging/comedi/drivers.o] Error 1 Restrict the driver to only those architectures that define PAGE_KERNEL_NOCACHE. PAGE_KERNEL_NOCACHE is a kludge - some system architectures such as SGI IP27 are even uable to offer uncached operation - at least in the way an unwitting driver might assume. I haven't looked in details how the driver is using the area vmaped with PAGE_KERNEL_NOCACHE but maybe doing it XFS-style using cached memory and the flush_kernel_vmap_range / invalidate_kernel_vmap_range APIs in conjunction with the DMA API is a practical alternative. Signed-off-by: Ralf Baechle Reported-by: David Miller Reported-by: Stephen Rothwell Acked-by: Geert Uytterhoeven Cc: Martyn Welch Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6

2011-05-24T20:28:35Z

* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: Make struct pcmcia_device_id const, sound drivers edition staging: pcmcia: Convert pcmcia_device_id declarations to const pcmcia: Convert pcmcia_device_id declarations to const pcmcia: Make declaration and uses of struct pcmcia_device_id const pcmcia/sa1100: put sa11x0_pcmcia_hw_init[] to .devinit.data

comedi vmk80xx: support comedi auto-configuration

2011-05-18T21:32:07Z

Add support for automatically associating a vmk8055 device with a comedi device (previously the user had to use comedi_num_legacy_minors to reserve device slots and then associate them with vmk8055 devices using comedi_config). Tested on multiple K8055s, but not on K8061s. Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

comedi vmk80xx: support bits instruction

2011-05-18T21:32:06Z

Calling comedi_dio_bifield2() returns EBUSY permanently. Implementing the insn_bits call fixes the problem and is good in its own right since one can then read and write to all the digitial lines at the same time. Tested on a K8055, but not on a K8061. Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

comedi vmk80xx: extend rudimentary_check to check both directions

2011-05-18T21:32:06Z

rudimentary_check() can currently check whether the input or output direction is currently available (no pending transaction), but not both at the same time. We need this facility for do_bits(). Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

comedi vmk80xx: simplify rinsn output calculation

2011-05-18T21:32:06Z

vmk80xx_di_rinsn() and vmk80xx_do_rinsn() extract the required channel data by inconsistent and overly-complex algorithms. Simplify them both. Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

comedi vmk80xx: Digitial I/O should have a maxdata of 1

2011-05-18T21:32:05Z

Digitial input and output sub-devices were reporting a maxdata of 0x1F and 0xFF respectively. They should both be 1. Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

comedi vmk80xx: make rudimentary_check a static function

2011-05-18T21:32:04Z

rudimentary_check is a macro with side-effects (it returns on error) which is contary to CodingStyle. Replace it with a static function. Signed-off-by: J. Ali Harlow Signed-off-by: Greg Kroah-Hartman

staging: comedi: addi-data: Get rid of redundant ps_BoardInfo

2011-05-17T20:33:39Z

The ps_BoardInfo pointer in the device private data is redundant as we can just use the this_board macro to access the same data, as is done elsewhere in the code. Get rid of the pointer and change the code to use the this_board macro instead. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman