1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __USB_TYPEC_TBT_H
3 #define __USB_TYPEC_TBT_H
5 #include <linux/usb/typec_altmode.h>
6 #include <linux/bitfield.h>
8 #define USB_TYPEC_VENDOR_INTEL 0x8087
9 /* Alias for convenience */
10 #define USB_TYPEC_TBT_SID USB_TYPEC_VENDOR_INTEL
12 /* Connector state for Thunderbolt3 */
13 #define TYPEC_TBT_MODE TYPEC_STATE_MODAL
16 * struct typec_thunderbolt_data - Thundebolt3 Alt Mode specific data
17 * @device_mode: Device Discover Mode VDO
18 * @cable_mode: Cable Discover Mode VDO
19 * @enter_vdo: Enter Mode VDO
21 struct typec_thunderbolt_data {
27 /* TBT3 Device Discover Mode VDO bits */
28 #define TBT_MODE BIT(0)
29 #define TBT_ADAPTER(_vdo_) FIELD_GET(BIT(16), _vdo_)
30 #define TBT_ADAPTER_LEGACY 0
31 #define TBT_ADAPTER_TBT3 1
32 #define TBT_INTEL_SPECIFIC_B0 BIT(26)
33 #define TBT_VENDOR_SPECIFIC_B0 BIT(30)
34 #define TBT_VENDOR_SPECIFIC_B1 BIT(31)
36 #define TBT_SET_ADAPTER(a) (((a) & 1) << 16)
38 /* TBT3 Cable Discover Mode VDO bits */
39 #define TBT_CABLE_SPEED(_vdo_) FIELD_GET(GENMASK(18, 16), _vdo_)
40 #define TBT_CABLE_USB3_GEN1 1
41 #define TBT_CABLE_USB3_PASSIVE 2
42 #define TBT_CABLE_10_AND_20GBPS 3
43 #define TBT_CABLE_ROUNDED_SUPPORT(_vdo_) FIELD_GET(GENMASK(20, 19), _vdo_)
45 #define TBT_GEN3_NON_ROUNDED 0
46 #define TBT_GEN3_GEN4_ROUNDED_NON_ROUNDED 1
47 #define TBT_CABLE_OPTICAL BIT(21)
48 #define TBT_CABLE_RETIMER BIT(22)
49 #define TBT_CABLE_LINK_TRAINING BIT(23)
50 #define TBT_CABLE_ACTIVE_PASSIVE BIT(25)
52 #define TBT_SET_CABLE_SPEED(_s_) (((_s_) & GENMASK(2, 0)) << 16)
53 #define TBT_SET_CABLE_ROUNDED(_g_) (((_g_) & GENMASK(1, 0)) << 19)
55 /* TBT3 Device Enter Mode VDO bits */
56 #define TBT_ENTER_MODE_CABLE_SPEED(s) TBT_SET_CABLE_SPEED(s)
57 #define TBT_ENTER_MODE_ACTIVE_CABLE BIT(24)
59 #endif /* __USB_TYPEC_TBT_H */