1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __USB_TYPEC_TBT_H |
3 | #define __USB_TYPEC_TBT_H |
4 | |
5 | #include <linux/usb/typec_altmode.h> |
6 | #include <linux/bitfield.h> |
7 | |
8 | #define USB_TYPEC_VENDOR_INTEL 0x8087 |
9 | /* Alias for convenience */ |
10 | #define USB_TYPEC_TBT_SID USB_TYPEC_VENDOR_INTEL |
11 | |
12 | /* Connector state for Thunderbolt3 */ |
13 | #define TYPEC_TBT_MODE TYPEC_STATE_MODAL |
14 | |
15 | /** |
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 |
20 | */ |
21 | struct typec_thunderbolt_data { |
22 | u32 device_mode; |
23 | u32 cable_mode; |
24 | u32 enter_vdo; |
25 | }; |
26 | |
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) |
35 | |
36 | #define TBT_SET_ADAPTER(a) (((a) & 1) << 16) |
37 | |
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_) |
44 | |
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) |
51 | |
52 | #define TBT_SET_CABLE_SPEED(_s_) (((_s_) & GENMASK(2, 0)) << 16) |
53 | #define TBT_SET_CABLE_ROUNDED(_g_) (((_g_) & GENMASK(1, 0)) << 19) |
54 | |
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) |
58 | |
59 | #endif /* __USB_TYPEC_TBT_H */ |
60 | |