diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index b47f7873c847..6737188f2581 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1353,14 +1353,48 @@ int usb4_port_sb_read(struct tb_port *port, enum usb4_sb_target target, u8 index int usb4_port_sb_write(struct tb_port *port, enum usb4_sb_target target, u8 index, u8 reg, const void *buf, u8 size); +/** + * enum usb4_margin_sw_error_counter - Software margining error counter operation + * @USB4_MARGIN_SW_ERROR_COUNTER_NOP: No change in counter setup + * @USB4_MARGIN_SW_ERROR_COUNTER_CLEAR: Set the error counter to 0, enable counter + * @USB4_MARGIN_SW_ERROR_COUNTER_START: Start counter, count from last value + * @USB4_MARGIN_SW_ERROR_COUNTER_STOP: Stop counter, do not clear value + */ +enum usb4_margin_sw_error_counter { + USB4_MARGIN_SW_ERROR_COUNTER_NOP, + USB4_MARGIN_SW_ERROR_COUNTER_CLEAR, + USB4_MARGIN_SW_ERROR_COUNTER_START, + USB4_MARGIN_SW_ERROR_COUNTER_STOP, +}; + +/** + * struct usb4_port_margining_params - USB4 margining parameters + * @error_counter: Error counter operation for software margining + * @ber_level: Current BER level contour value + * @lanes: %0, %1 or %7 (all) + * @voltage_time_offset: Offset for voltage / time for software margining + * @optional_voltage_offset_range: Enable optional extended voltage range + * @right_high: %false if left/low margin test is performed, %true if right/high + * @time: %true if time margining is used instead of voltage + */ +struct usb4_port_margining_params { + enum usb4_margin_sw_error_counter error_counter; + u32 ber_level; + u32 lanes; + u32 voltage_time_offset; + bool optional_voltage_offset_range; + bool right_high; + bool time; +}; + int usb4_port_margining_caps(struct tb_port *port, enum usb4_sb_target target, u8 index, u32 *caps); int usb4_port_hw_margin(struct tb_port *port, enum usb4_sb_target target, - u8 index, unsigned int lanes, unsigned int ber_level, - bool timing, bool right_high, u32 *results); + u8 index, const struct usb4_port_margining_params *params, + u32 *results); int usb4_port_sw_margin(struct tb_port *port, enum usb4_sb_target target, - u8 index, unsigned int lanes, bool timing, - bool right_high, u32 counter); + u8 index, const struct usb4_port_margining_params *params, + u32 *results); int usb4_port_sw_margin_errors(struct tb_port *port, enum usb4_sb_target target, u8 index, u32 *errors); |