[PATCH] ieee1394: fix cosmetic problem in speed probe

If ieee1394.h::IEEE1394_SPEED_MAX is bigger than the actual speed of an
1394b host adapter and the speed to another 1394b node was probed, a
bigger speed than actually used was kept in host->speed[n].  The only
resulting problem so far was sbp2 displaying bogus values in the syslog,
e.g. S3200 for actual S800 connections if IEEE1394_SPEED_MAX was S3200.
But other high-level drivers which access this field could get into more
trouble.  (Eth1394 is the only other in-tree driver which does so.  It
seems it is not affected.)

Nodemgr now clips this value according to the host adapter's link speed.

A pointer expression in nodemgr_check_speed is also changed for clarity.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
intelfb: add vsync interrupt support

[01/05] intelfb: Add 16-bit register access macros

This patch adds macros to read and write two-byte MMIO registers. The interrupt-related registers are all word-sized, rather than long-sized.

Signed-off-by: Eric Hustvedt <ehustvedt@cecropia.com>
intelfb: add vsync interrupt support

[02/05] intelfb: Add interrupt related register definitions

Add constants for accessing HWSTAM, IER, IIR, and IMR registers.
Add constants for interrupt types supported by the 8xx and 9xx chipsets.
The registers are also stored in the hwstate struct and dumped in the debug routine.

Signed-off-by: Eric Hustvedt <ehustvedt@cecropia.com>
intelfb: add vsync interrupt support

[03/05] intelfb: Implement basic interrupt handling

Functions have been added to enable and disable interrupts using the MMIO registers. Currently only pipe A vsync interrupts are enabled.
A generalized vsync accounting struct is defined, with the intent that it can encapsulate per-pipe vsync related info in the future. Currently a single instance is hard-coded.
The interrupt service routine currently only looks for vsync interrupts on pipe A, and increments a counter and wakes up anyone waiting on it.

This implementation is heavily influenced by similar implementations in the atyfb and matroxfb drivers.

Signed-off-by: Eric Hustvedt <ehustvedt@cecropia.com>
intelfb: add vsync interrupt support

[04/05] intelfb: implement FBIO_WAITFORVSYNC ioctl

The (unofficial) FBIO_WAITFORVSYNC ioctl is implemented by sleeping on the appropriate waitqueue, as defined in my earlier patch. Currently, only display 0 (aka pipe A) is supported.

Signed-off-by: Eric Hustvedt <ehustvedt@cecropia.com>
intelfb: add vsync interrupt support

[05/05] intelfb: Honor FB_ACTIVATE_VBL for display panning

Extends the intelfb_vsync struct to store panning offset. The interrupt service routine uses the stored panning offset if a pan is requested for the vsync. intelfbhw_disable_irq also pans the display if there is a pending request.

Signed-off-by: Eric Hustvedt <ehustvedt@cecropia.com>
intelfb: add preliminary i2c support

[01/07] i2c: add intelfb bit algorithm id

Adds the intelfb bit algorithm id to i2c-id.h.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[02/07] intelfb: add GPIO registers.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[03/07] intelfb: add intelfb_i2c_chan struct.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[04/07] intelfb: add intelfb_output_rec struct and the constants for it's
fields.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[05/07] intelfb: add output fields to dinfo.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[06/07] intelfb: adds intelfb_i2c.c which contains the infrastructure needed to
enumerate the i2c busses on the intelfb.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

[07/07] intelfb: adds an option to enable I2C support in the intelfb driver.  Also adds
the intel_i2c.c file to the Makefile.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
intelfb: add preliminary i2c support

Adds code to unregister the I2C buses in the cleanup function.

Signed-off-by: Dennis Munsie <dmunsie@cecropia.com>
[PATCH] ieee1394: sbp2: enable auto spin-up for Maxtor disks

At least Maxtor OneTouch III require a "start stop unit" command after
auto spin-down before the next access can proceed.  This patch activates
the responsible code in scsi_mod for all Maxtor SBP-2 disks.
https://bugzilla.novell.com/show_bug.cgi?id=183011

Maybe that should be done for all SBP-2 disks, but better be cautious.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
[PATCH] ieee1394: fix calculation of csr->expire

This variant of calculate_expire() is more correct and easier to read.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
[PATCH] ieee1394: skip dummy loop in build_speed_map

The last loop in ieee1394 core's speed calculation is not required
unless ieee1394.h::IEEE1394_SPEED_MAX is changed from its current value
of 3.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
[PATCH] ieee1394: replace __inline__ by inline

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
[PATCH] ieee1394: coding style and comment fixes in midlayer header files

Adjust tabulators, line wraps, empty lines, and comment style.
Update comments in ieee1394_transactions.h and highlevel.h.
Fix typo in comment in csr.h.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
[PATCH] ieee1394: update #include directives in midlayer header files

Remove unnecessary includes, add missing includes.
Use forward type declarations for some structs.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>