linux-toradex.git/drivers/thunderbolt/tb.h, branch v4.5 Linux kernel for Apalis and Colibri modules thunderbolt: Fix header declaration of tb_find_cap 2014-06-20T20:06:01+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-20T19:42:23+00:00 7f2d5f7bc529114c2e67520427be6ebac694e78f tb_find_cap in cap.c takes an enum tb_cap and not an u32. Fix the declaration in tb.h. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
tb_find_cap in cap.c takes an enum tb_cap and not an u32. Fix the
declaration in tb.h.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Read port configuration from eeprom. 2014-06-19T21:14:35+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-12T21:11:46+00:00 cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6 All Thunderbolt switches (except the root switch) contain a drom which contains information about the device. Right now we only read the UID. Add code to read and parse this drom. For now we are only interested in which ports are disabled and which ports are "dual link ports" (a physical thunderbolt port/socket contains two such ports). Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
All Thunderbolt switches (except the root switch) contain a drom which
contains information about the device. Right now we only read the UID.

Add code to read and parse this drom. For now we are only interested in
which ports are disabled and which ports are "dual link ports" (a
physical thunderbolt port/socket contains two such ports).

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Add suspend/hibernate support 2014-06-19T21:13:00+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:12+00:00 23dd5bb49d986f37977ed80dd2ca65040ead4392 We use _noirq since we have to restore the pci tunnels before the pci core wakes the tunneled devices. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
We use _noirq since we have to restore the pci tunnels before the pci
core wakes the tunneled devices.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Read switch uid from EEPROM 2014-06-19T21:13:00+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:11+00:00 c90553b3c4ac2389a71a5c012b6e5bb1160d48a7 Add eeprom access code and read the uid during switch initialization. The UID will be used to check device identity after suspend. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add eeprom access code and read the uid during switch initialization.
The UID will be used to check device identity after suspend.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Add support for simple pci tunnels 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:08+00:00 3364f0c12795713e89ae1209081c60d64bfb4ca1 A pci downstream and pci upstream port can be connected through a tunnel. To establish the tunnel we have to setup two unidirectional paths between the two ports. Right now we only support paths with two hops (i.e. no chaining) and at most one pci device per thunderbolt device. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
A pci downstream and pci upstream port can be connected through a
tunnel. To establish the tunnel we have to setup two unidirectional
paths between the two ports.

Right now we only support paths with two hops (i.e. no chaining) and at
most one pci device per thunderbolt device.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Add path setup code. 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:07+00:00 520b670216a15fb949e6ec6a1af9b5dd55d219c7 A thunderbolt path is a unidirectional channel between two thunderbolt ports. Two such paths are needed to establish a pci tunnel. This patch introduces struct tb_path as well as a set of tb_path_* methods which are used to activate & deactivate paths. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
A thunderbolt path is a unidirectional channel between two thunderbolt
ports. Two such paths are needed to establish a pci tunnel.

This patch introduces struct tb_path as well as a set of tb_path_*
methods which are used to activate & deactivate paths.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Handle hotplug events 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:06+00:00 053596d9e26c86352c4b2b372f43f2746b97de45 We receive a plug event callback whenever a thunderbolt device is added or removed. This patch fills in the tb_handle_hotplug method and starts reacting to these events by adding/removing switches from the hierarchy. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
We receive a plug event callback whenever a thunderbolt device is added
or removed. This patch fills in the tb_handle_hotplug method and starts
reacting to these events by adding/removing switches from the hierarchy.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Scan for downstream switches 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:05+00:00 9da672a42878c58af5c50d7389dbae17bea9df38 Add utility methods tb_port_state and tb_wait_for_port. Add tb_scan_switch which recursively checks for downstream switches. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add utility methods tb_port_state and tb_wait_for_port. Add
tb_scan_switch which recursively checks for downstream switches.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Enable plug events 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:04+00:00 ca389f716f6140d5349583a716bc629d63b06b1f Thunderbolt switches have a plug events capability. This patch adds the tb_plug_events_active method and uses it to activate plug events during switch allocation. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Thunderbolt switches have a plug events capability. This patch adds the
tb_plug_events_active method and uses it to activate plug events during
switch allocation.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
thunderbolt: Add thunderbolt capability handling 2014-06-19T21:07:47+00:00 Andreas Noever andreas.noever@gmail.com 2014-06-03T20:04:03+00:00 e2b8785ed312dad3a18279a3e88435fc269658c1 Thunderbolt config areas contain capability lists similar to those found on pci devices. This patch introduces a tb_find_cap utility method to search for capabilities. Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Thunderbolt config areas contain capability lists similar to those found
on pci devices. This patch introduces a tb_find_cap utility method to
search for capabilities.

Signed-off-by: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>