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path: root/include/linux/usb/pd.h
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2020-07-21usb: typec: tcpm: Stay in BIST mode till hardreset or unattachedBadhri Jagan Sridharan1-0/+1
Port starts to toggle when transitioning to unattached state. This is incorrect while in BIST mode. 6.4.3.1 BIST Carrier Mode Upon receipt of a BIST Message, with a BIST Carrier Mode BIST Data Object, the UUT Shall send out a continuous string of BMC encoded alternating "1"s and “0”s. The UUT Shall exit the Continuous BIST Mode within tBISTContMode of this Continuous BIST Mode being enabled(see Section 6.6.7.2). 6.4.3.2 BIST Test Data Upon receipt of a BIST Message, with a BIST Test Data BIST Data Object, the UUT Shall return a GoodCRC Message and Shall enter a test mode in which it sends no further Messages except for GoodCRC Messages in response to received Messages. See Section 5.9.2 for the definition of the Test Data Frame. The test Shall be ended by sending Hard Reset Signaling to reset the UUT. Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20200716034128.1251728-3-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09usb: pd: Add definitions for the Enter_USB messageHeikki Krogerus1-1/+32
Version 2.0 of the USB Power Delivery Specification R3.0 defines a new message called Enter_USB, which is made with USB4 in mind. Enter_USB message is in practice the same as the Enter Mode command (used when entering alternate modes) that just needs to be used when entering USB4 mode. The message does also support entering USB 2.0 or USB 3.2 mode instead of USB4 mode, but it is only required with USB4. I.e. with USB2 and USB3 Enter_USB message is optional. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20191230142611.24921-9-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner1-10/+1
Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28usb: pd: include kernel.hHeikki Krogerus1-0/+1
This makes life a bit easier for the drivers that include pd.h. All pd_header_*_le() inline functions defined in pd.h call le16_to_cpu(), and all *_LE() macros in pd.h call cpu_to_le16(). Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-25typec: tcpm: Add core support for sink side PPSAdam Thomson1-2/+2
This commit adds code to handle requesting of PPS APDOs. Switching between standard PDOs and APDOs, and re-requesting an APDO to modify operating voltage/current will be triggered by an external call into TCPM. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-09typec: tcpm: Add PD Rev 3.0 definitions to PD headerAdam Thomson1-11/+174
This commit adds definitions for PD Rev 3.0 messages, including APDO PPS and extended message support for TCPM. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-07typec: tcpm: Validate source and sink capsBadhri Jagan Sridharan1-0/+2
The source and sink caps should follow the following rules. This patch validates whether the src_caps/snk_caps adheres to it. 6.4.1 Capabilities Message A Capabilities message (Source Capabilities message or Sink Capabilities message) shall have at least one Power Data Object for vSafe5V. The Capabilities message shall also contain the sending Port’s information followed by up to 6 additional Power Data Objects. Power Data Objects in a Capabilities message shall be sent in the following order: 1. The vSafe5V Fixed Supply Object shall always be the first object. 2. The remaining Fixed Supply Objects, if present, shall be sent in voltage order; lowest to highest. 3. The Battery Supply Objects, if present shall be sent in Minimum Voltage order; lowest to highest. 4. The Variable Supply (non-battery) Objects, if present, shall be sent in Minimum Voltage order; lowest to highest. Errors in source/sink_caps of the local port will prevent the port registration. Whereas, errors in source caps of partner device would only log them. Signed-off-by: Badhri Jagan Sridharan <Badhri@google.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18typec: tcpm: Move out of stagingGuenter Roeck1-0/+298
Move tcpm (USB Type-C Port Manager) out of staging. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>