mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
usb: typec: Add definitions for Thunderbolt 3 Alternate Mode
This adds separate header file for the Thunderbolt 3 Alternate Mode (aka. TBT). The header supplies definitions for all the Thunderbolt specific VDOs (Vendor Defined Objects) that are described in the USB Type-C Connector specification v2.0, as well as definition for the Thunderbolt 3 Standard ID (SID). There is also a new connector state value for the Thunderbolt 3 Alternate Mode that can be used with the mux drivers. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200302135353.56659-9-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
a7914d1072
commit
ca469c292e
1 changed files with 53 additions and 0 deletions
53
include/linux/usb/typec_tbt.h
Normal file
53
include/linux/usb/typec_tbt.h
Normal file
|
@ -0,0 +1,53 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef __USB_TYPEC_TBT_H
|
||||
#define __USB_TYPEC_TBT_H
|
||||
|
||||
#include <linux/usb/typec_altmode.h>
|
||||
|
||||
#define USB_TYPEC_VENDOR_INTEL 0x8087
|
||||
/* Alias for convenience */
|
||||
#define USB_TYPEC_TBT_SID USB_TYPEC_VENDOR_INTEL
|
||||
|
||||
/* Connector state for Thunderbolt3 */
|
||||
#define TYPEC_TBT_MODE TYPEC_STATE_MODAL
|
||||
|
||||
/**
|
||||
* struct typec_thunderbolt_data - Thundebolt3 Alt Mode specific data
|
||||
* @device_mode: Device Discover Mode VDO
|
||||
* @cable_mode: Cable Discover Mode VDO
|
||||
* @enter_vdo: Enter Mode VDO
|
||||
*/
|
||||
struct typec_thunderbolt_data {
|
||||
u32 device_mode;
|
||||
u32 cable_mode;
|
||||
u32 enter_vdo;
|
||||
};
|
||||
|
||||
/* TBT3 Device Discover Mode VDO bits */
|
||||
#define TBT_MODE BIT(0)
|
||||
#define TBT_ADAPTER(_vdo_) (((_vdo_) & BIT(16)) >> 16)
|
||||
#define TBT_ADAPTER_LEGACY 0
|
||||
#define TBT_ADAPTER_TBT3 1
|
||||
#define TBT_INTEL_SPECIFIC_B0 BIT(26)
|
||||
#define TBT_VENDOR_SPECIFIC_B0 BIT(30)
|
||||
#define TBT_VENDOR_SPECIFIC_B1 BIT(31)
|
||||
|
||||
#define TBT_SET_ADAPTER(a) (((a) & 1) << 16)
|
||||
|
||||
/* TBT3 Cable Discover Mode VDO bits */
|
||||
#define TBT_CABLE_SPEED(_vdo_) (((_vdo_) & GENMASK(18, 16)) >> 16)
|
||||
#define TBT_CABLE_USB3_GEN1 1
|
||||
#define TBT_CABLE_USB3_PASSIVE 2
|
||||
#define TBT_CABLE_10_AND_20GBPS 3
|
||||
#define TBT_CABLE_ROUNDED BIT(19)
|
||||
#define TBT_CABLE_OPTICAL BIT(21)
|
||||
#define TBT_CABLE_RETIMER BIT(22)
|
||||
#define TBT_CABLE_LINK_TRAINING BIT(23)
|
||||
|
||||
#define TBT_SET_CABLE_SPEED(_s_) (((_s_) & GENMASK(2, 0)) << 16)
|
||||
|
||||
/* TBT3 Device Enter Mode VDO bits */
|
||||
#define TBT_ENTER_MODE_CABLE_SPEED(s) TBT_SET_CABLE_SPEED(s)
|
||||
#define TBT_ENTER_MODE_ACTIVE_CABLE BIT(24)
|
||||
|
||||
#endif /* __USB_TYPEC_TBT_H */
|
Loading…
Reference in a new issue