diff options
Diffstat (limited to 'include/linux/usb')
| -rw-r--r-- | include/linux/usb/typec_tbt.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/linux/usb/typec_tbt.h b/include/linux/usb/typec_tbt.h new file mode 100644 index 000000000000..47c2d501ddce --- /dev/null +++ b/include/linux/usb/typec_tbt.h @@ -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 */ |