/* * Thunderbolt Cactus Ridge 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 */ #ifndef _TB_REGS #define _TB_REGS #include #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_cap { TB_CAP_PHY = 0x0001, TB_CAP_TIME1 = 0x0003, TB_CAP_PCIE = 0x0004, TB_CAP_I2C = 0x0005, TB_CAP_PLUG_EVENTS = 0x0105, /* also EEPROM */ TB_CAP_TIME2 = 0x0305, TB_CAP_IECS = 0x0405, TB_CAP_LINK_CONTROLLER = 0x0605, /* also IECS */ }; 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 { u8 next; /* if next and length are zero then we have a long cap */ enum tb_cap cap:16; u8 length; } __packed; struct tb_cap_extended_long { u8 zero1; enum tb_cap cap:16; 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 __unknown4:16; u32 thunderbolt_version:8; } __packed; 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_USB = 0x200000, lower order bits are not known */ }; /* 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 __unkown4:10; /* DWORD 6 */ u32 __unknown5; /* DWORD 7 */ u32 __unknown6; } __packed; /* 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; u32 unknown3:4; /* set to zero */ } __packed; #endif x-foundation.org>2017-02-06 15:11:04 -0800 committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-06 15:11:04 -0800 commitf7d6040aa45df6ffd9e891114125dc919f18b96b (patch) treeb20fed8e63bf327d6521923851a96ba080c48ce5 /drivers/usb/mon/Kconfig parent50dcb6cdb70281d76b28d1564f8e076bb08f2c60 (diff)parentcbf304e420da96992eae50bb6d51035681340ab8 (diff)
Merge tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki: "These add a quirk to intel_pstate to work around a firmware setting that leads to frequency scaling issues (discovered recently) on some Intel Kaby Lake processors, fix up the recently added brcmstb-avs cpufreq driver and avoid false-positive warnings from the runtime PM framework triggered by recent changes in i915. Specifics: - Add an intel_pstate driver quirk to work around a firmware setting that leads to frequency scaling issues on desktop Intel Kaby Lake processors in some configurations if the hardware-managed P-states (HWP) feature is in use (Srinivas Pandruvada) - Fix up the recently added brcmstb-avs cpufreq driver: fix a bug related to system suspend and change the sysfs interface to match the user space expectations (Markus Mayer) - Modify the runtime PM framework to avoid false-positive warnings from the might_sleep_if() assertions in it (Rafael Wysocki)" * tag 'pm-4.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / runtime: Avoid false-positive warnings from might_sleep_if() cpufreq: intel_pstate: Disable energy efficiency optimization cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend cpufreq: brcmstb-avs-cpufreq: extend sysfs entry brcm_avs_pmap
Diffstat (limited to 'drivers/usb/mon/Kconfig')