| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andreas Noever | 589 | 51.00% | 1 | 4.35% |
| Mika Westerberg | 473 | 40.95% | 18 | 78.26% |
| Rajmohan Mani | 91 | 7.88% | 2 | 8.70% |
| Nathan Ciobanu | 1 | 0.09% | 1 | 4.35% |
| Greg Kroah-Hartman | 1 | 0.09% | 1 | 4.35% |
| Total | 1155 | 23 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * Thunderbolt driver - Port/Switch config area registers * * Every thunderbolt device consists (logically) of a switch with multiple * ports. Every port contains up to four config regions (HOPS, PORT, SWITCH, * COUNTERS) which are used to configure the device. * * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com> * Copyright (C) 2018, Intel Corporation */ #ifndef _TB_REGS #define _TB_REGS #include <linux/types.h> #define TB_ROUTE_SHIFT 8 /* number of bits in a port entry of a route */ /* * TODO: should be 63? But we do not know how to receive frames larger than 256 * bytes at the frame level. (header + checksum = 16, 60*4 = 240) */ #define TB_MAX_CONFIG_RW_LENGTH 60 enum tb_switch_cap { TB_SWITCH_CAP_TMU = 0x03, TB_SWITCH_CAP_VSE = 0x05, }; enum tb_switch_vse_cap { TB_VSE_CAP_PLUG_EVENTS = 0x01, /* also EEPROM */ TB_VSE_CAP_TIME2 = 0x03, TB_VSE_CAP_IECS = 0x04, TB_VSE_CAP_LINK_CONTROLLER = 0x06, /* also IECS */ }; enum tb_port_cap { TB_PORT_CAP_PHY = 0x01, TB_PORT_CAP_TIME1 = 0x03, TB_PORT_CAP_ADAP = 0x04, TB_PORT_CAP_VSE = 0x05, TB_PORT_CAP_USB4 = 0x06, }; enum tb_port_state { TB_PORT_DISABLED = 0, /* tb_cap_phy.disable == 1 */ TB_PORT_CONNECTING = 1, /* retry */ TB_PORT_UP = 2, TB_PORT_UNPLUGGED = 7, }; /* capability headers */ struct tb_cap_basic { u8 next; /* enum tb_cap cap:8; prevent "narrower than values of its type" */ u8 cap; /* if cap == 0x05 then we have a extended capability */ } __packed; /** * struct tb_cap_extended_short - Switch extended short capability * @next: Pointer to the next capability. If @next and @length are zero * then we have a long cap. * @cap: Base capability ID (see &enum tb_switch_cap) * @vsec_id: Vendor specific capability ID (see &enum switch_vse_cap) * @length: Length of this capability */ struct tb_cap_extended_short { u8 next; u8 cap; u8 vsec_id; u8 length; } __packed; /** * struct tb_cap_extended_long - Switch extended long capability * @zero1: This field should be zero * @cap: Base capability ID (see &enum tb_switch_cap) * @vsec_id: Vendor specific capability ID (see &enum switch_vse_cap) * @zero2: This field should be zero * @next: Pointer to the next capability * @length: Length of this capability */ struct tb_cap_extended_long { u8 zero1; u8 cap; u8 vsec_id; u8 zero2; u16 next; u16 length; } __packed; /* capabilities */ struct tb_cap_link_controller { struct tb_cap_extended_long cap_header; u32 count:4; /* number of link controllers */ u32 unknown1:4; u32 base_offset:8; /* * offset (into this capability) of the configuration * area of the first link controller */ u32 length:12; /* link controller configuration area length */ u32 unknown2:4; /* TODO check that length is correct */ } __packed; struct tb_cap_phy { struct tb_cap_basic cap_header; u32 unknown1:16; u32 unknown2:14; bool disable:1; u32 unknown3:11; enum tb_port_state state:4; u32 unknown4:2; } __packed; struct tb_eeprom_ctl { bool clock:1; /* send pulse to transfer one bit */ bool access_low:1; /* set to 0 before access */ bool data_out:1; /* to eeprom */ bool data_in:1; /* from eeprom */ bool access_high:1; /* set to 1 before access */ bool not_present:1; /* should be 0 */ bool unknown1:1; bool present:1; /* should be 1 */ u32 unknown2:24; } __packed; struct tb_cap_plug_events { struct tb_cap_extended_short cap_header; u32 __unknown1:2; u32 plug_events:5; u32 __unknown2:25; u32 __unknown3; u32 __unknown4; struct tb_eeprom_ctl eeprom_ctl; u32 __unknown5[7]; u32 drom_offset; /* 32 bit register, but eeprom addresses are 16 bit */ } __packed; /* device headers */ /* Present on port 0 in TB_CFG_SWITCH at address zero. */ struct tb_regs_switch_header { /* DWORD 0 */ u16 vendor_id; u16 device_id; /* DWORD 1 */ u32 first_cap_offset:8; u32 upstream_port_number:6; u32 max_port_number:6; u32 depth:3; u32 __unknown1:1; u32 revision:8; /* DWORD 2 */ u32 route_lo; /* DWORD 3 */ u32 route_hi:31; bool enabled:1; /* DWORD 4 */ u32 plug_events_delay:8; /* * RW, pause between plug events in * milliseconds. Writing 0x00 is interpreted * as 255ms. */ u32 cmuv:8; u32 __unknown4:8; u32 thunderbolt_version:8; } __packed; /* USB4 version 1.0 */ #define USB4_VERSION_1_0 0x20 #define ROUTER_CS_1 0x01 #define ROUTER_CS_4 0x04 #define ROUTER_CS_5 0x05 #define ROUTER_CS_5_SLP BIT(0) #define ROUTER_CS_5_C3S BIT(23) #define ROUTER_CS_5_PTO BIT(24) #define ROUTER_CS_5_UTO BIT(25) #define ROUTER_CS_5_HCO BIT(26) #define ROUTER_CS_5_CV BIT(31) #define ROUTER_CS_6 0x06 #define ROUTER_CS_6_SLPR BIT(0) #define ROUTER_CS_6_TNS BIT(1) #define ROUTER_CS_6_HCI BIT(18) #define ROUTER_CS_6_CR BIT(25) #define ROUTER_CS_7 0x07 #define ROUTER_CS_9 0x09 #define ROUTER_CS_25 0x19 #define ROUTER_CS_26 0x1a #define ROUTER_CS_26_STATUS_MASK GENMASK(29, 24) #define ROUTER_CS_26_STATUS_SHIFT 24 #define ROUTER_CS_26_ONS BIT(30) #define ROUTER_CS_26_OV BIT(31) /* Router TMU configuration */ #define TMU_RTR_CS_0 0x00 #define TMU_RTR_CS_0_TD BIT(27) #define TMU_RTR_CS_0_UCAP BIT(30) #define TMU_RTR_CS_1 0x01 #define TMU_RTR_CS_1_LOCAL_TIME_NS_MASK GENMASK(31, 16) #define TMU_RTR_CS_1_LOCAL_TIME_NS_SHIFT 16 #define TMU_RTR_CS_2 0x02 #define TMU_RTR_CS_3 0x03 #define TMU_RTR_CS_3_LOCAL_TIME_NS_MASK GENMASK(15, 0) #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_MASK GENMASK(31, 16) #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_SHIFT 16 #define TMU_RTR_CS_22 0x16 #define TMU_RTR_CS_24 0x18 enum tb_port_type { TB_TYPE_INACTIVE = 0x000000, TB_TYPE_PORT = 0x000001, TB_TYPE_NHI = 0x000002, /* TB_TYPE_ETHERNET = 0x020000, lower order bits are not known */ /* TB_TYPE_SATA = 0x080000, lower order bits are not known */ TB_TYPE_DP_HDMI_IN = 0x0e0101, TB_TYPE_DP_HDMI_OUT = 0x0e0102, TB_TYPE_PCIE_DOWN = 0x100101, TB_TYPE_PCIE_UP = 0x100102, TB_TYPE_USB3_DOWN = 0x200101, TB_TYPE_USB3_UP = 0x200102, }; /* Present on every port in TB_CF_PORT at address zero. */ struct tb_regs_port_header { /* DWORD 0 */ u16 vendor_id; u16 device_id; /* DWORD 1 */ u32 first_cap_offset:8; u32 max_counters:11; u32 __unknown1:5; u32 revision:8; /* DWORD 2 */ enum tb_port_type type:24; u32 thunderbolt_version:8; /* DWORD 3 */ u32 __unknown2:20; u32 port_number:6; u32 __unknown3:6; /* DWORD 4 */ u32 nfc_credits; /* DWORD 5 */ u32 max_in_hop_id:11; u32 max_out_hop_id:11; u32 __unknown4:10; /* DWORD 6 */ u32 __unknown5; /* DWORD 7 */ u32 __unknown6; } __packed; /* Basic adapter configuration registers */ #define ADP_CS_4 0x04 #define ADP_CS_4_NFC_BUFFERS_MASK GENMASK(9, 0) #define ADP_CS_4_TOTAL_BUFFERS_MASK GENMASK(29, 20) #define ADP_CS_4_TOTAL_BUFFERS_SHIFT 20 #define ADP_CS_4_LCK BIT(31) #define ADP_CS_5 0x05 #define ADP_CS_5_LCA_MASK GENMASK(28, 22) #define ADP_CS_5_LCA_SHIFT 22 /* TMU adapter registers */ #define TMU_ADP_CS_3 0x03 #define TMU_ADP_CS_3_UDM BIT(29) /* Lane adapter registers */ #define LANE_ADP_CS_0 0x00 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_MASK GENMASK(25, 20) #define LANE_ADP_CS_0_SUPPORTED_WIDTH_SHIFT 20 #define LANE_ADP_CS_1 0x01 #define LANE_ADP_CS_1_TARGET_WIDTH_MASK GENMASK(9, 4) #define LANE_ADP_CS_1_TARGET_WIDTH_SHIFT 4 #define LANE_ADP_CS_1_TARGET_WIDTH_SINGLE 0x1 #define LANE_ADP_CS_1_TARGET_WIDTH_DUAL 0x3 #define LANE_ADP_CS_1_LB BIT(15) #define LANE_ADP_CS_1_CURRENT_SPEED_MASK GENMASK(19, 16) #define LANE_ADP_CS_1_CURRENT_SPEED_SHIFT 16 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN2 0x8 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN3 0x4 #define LANE_ADP_CS_1_CURRENT_WIDTH_MASK GENMASK(25, 20) #define LANE_ADP_CS_1_CURRENT_WIDTH_SHIFT 20 /* USB4 port registers */ #define PORT_CS_18 0x12 #define PORT_CS_18_BE BIT(8) #define PORT_CS_19 0x13 #define PORT_CS_19_PC BIT(3) /* Display Port adapter registers */ #define ADP_DP_CS_0 0x00 #define ADP_DP_CS_0_VIDEO_HOPID_MASK GENMASK(26, 16) #define ADP_DP_CS_0_VIDEO_HOPID_SHIFT 16 #define ADP_DP_CS_0_AE BIT(30) #define ADP_DP_CS_0_VE BIT(31) #define ADP_DP_CS_1_AUX_TX_HOPID_MASK GENMASK(10, 0) #define ADP_DP_CS_1_AUX_RX_HOPID_MASK GENMASK(21, 11) #define ADP_DP_CS_1_AUX_RX_HOPID_SHIFT 11 #define ADP_DP_CS_2 0x02 #define ADP_DP_CS_2_HDP BIT(6) #define ADP_DP_CS_3 0x03 #define ADP_DP_CS_3_HDPC BIT(9) #define DP_LOCAL_CAP 0x04 #define DP_REMOTE_CAP 0x05 #define DP_STATUS_CTRL 0x06 #define DP_STATUS_CTRL_CMHS BIT(25) #define DP_STATUS_CTRL_UF BIT(26) #define DP_COMMON_CAP 0x07 /* * DP_COMMON_CAP offsets work also for DP_LOCAL_CAP and DP_REMOTE_CAP * with exception of DPRX done. */ #define DP_COMMON_CAP_RATE_MASK GENMASK(11, 8) #define DP_COMMON_CAP_RATE_SHIFT 8 #define DP_COMMON_CAP_RATE_RBR 0x0 #define DP_COMMON_CAP_RATE_HBR 0x1 #define DP_COMMON_CAP_RATE_HBR2 0x2 #define DP_COMMON_CAP_RATE_HBR3 0x3 #define DP_COMMON_CAP_LANES_MASK GENMASK(14, 12) #define DP_COMMON_CAP_LANES_SHIFT 12 #define DP_COMMON_CAP_1_LANE 0x0 #define DP_COMMON_CAP_2_LANES 0x1 #define DP_COMMON_CAP_4_LANES 0x2 #define DP_COMMON_CAP_DPRX_DONE BIT(31) /* PCIe adapter registers */ #define ADP_PCIE_CS_0 0x00 #define ADP_PCIE_CS_0_PE BIT(31) /* USB adapter registers */ #define ADP_USB3_CS_0 0x00 #define ADP_USB3_CS_0_V BIT(30) #define ADP_USB3_CS_0_PE BIT(31) /* Hop register from TB_CFG_HOPS. 8 byte per entry. */ struct tb_regs_hop { /* DWORD 0 */ u32 next_hop:11; /* * hop to take after sending the packet through * out_port (on the incoming port of the next switch) */ u32 out_port:6; /* next port of the path (on the same switch) */ u32 initial_credits:8; u32 unknown1:6; /* set to zero */ bool enable:1; /* DWORD 1 */ u32 weight:4; u32 unknown2:4; /* set to zero */ u32 priority:3; bool drop_packages:1; u32 counter:11; /* index into TB_CFG_COUNTERS on this port */ bool counter_enable:1; bool ingress_fc:1; bool egress_fc:1; bool ingress_shared_buffer:1; bool egress_shared_buffer:1; bool pending:1; u32 unknown3:3; /* set to zero */ } __packed; /* Common link controller registers */ #define TB_LC_DESC 0x02 #define TB_LC_DESC_NLC_MASK GENMASK(3, 0) #define TB_LC_DESC_SIZE_SHIFT 8 #define TB_LC_DESC_SIZE_MASK GENMASK(15, 8) #define TB_LC_DESC_PORT_SIZE_SHIFT 16 #define TB_LC_DESC_PORT_SIZE_MASK GENMASK(27, 16) #define TB_LC_FUSE 0x03 #define TB_LC_SNK_ALLOCATION 0x10 #define TB_LC_SNK_ALLOCATION_SNK0_MASK GENMASK(3, 0) #define TB_LC_SNK_ALLOCATION_SNK0_CM 0x1 #define TB_LC_SNK_ALLOCATION_SNK1_SHIFT 4 #define TB_LC_SNK_ALLOCATION_SNK1_MASK GENMASK(7, 4) #define TB_LC_SNK_ALLOCATION_SNK1_CM 0x1 /* Link controller registers */ #define TB_LC_PORT_ATTR 0x8d #define TB_LC_PORT_ATTR_BE BIT(12) #define TB_LC_SX_CTRL 0x96 #define TB_LC_SX_CTRL_L1C BIT(16) #define TB_LC_SX_CTRL_L2C BIT(20) #define TB_LC_SX_CTRL_UPSTREAM BIT(30) #define TB_LC_SX_CTRL_SLP BIT(31) #endif
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