155cf386b1
* Zipping compiler warning about POW_PD_EXT / Option A * Zipping compiler warning about POW_PD_EXT / Option B * BSP/configuration.h: implement option A for POW_PD_EXT warning --------- Co-authored-by: Ben V. Brown <5425387+Ralim@users.noreply.github.com>
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
#pragma once
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#ifndef _DRIVERS_HUB238_HPP_
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#define _DRIVERS_HUB238_HPP_
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#include "configuration.h"
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#if POW_PD_EXT == 1
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#include <stdbool.h>
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#include <stdint.h>
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#define HUB238_ADDR 0x08 << 1
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#define HUB238_REG_PD_STATUS0 0x00
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#define HUB238_REG_PD_STATUS1 0x01
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#define HUB238_REG_SRC_PDO_5V 0x02
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#define HUB238_REG_SRC_PDO_9V 0x03
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#define HUB238_REG_SRC_PDO_12V 0x04
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#define HUB238_REG_SRC_PDO_15V 0x05
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#define HUB238_REG_SRC_PDO_18V 0x06
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#define HUB238_REG_SRC_PDO_20V 0x07
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#define HUB238_REG_SRC_PDO 0x08
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#define HUB238_REG_GO_COMMAND 0x09
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#define HUB238_PDO_DETECTED (0x01 << 7)
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// The HUB238 is fairly simple device to interact to, with fairly few registers all in all
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// It only appears to support fixed PDO's up to 20V
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// And they have just dedicated registers to each potential option
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// Given a tip resistance we try and pick the best possible PDO option to suit that resistance
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// (Using I2C overrides any hardware strapping).
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// Probe if the hub238 exists on the I2C bus
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bool hub238_probe();
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// If we have not manually picked a PDO,
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// but there is an active PD supply, try for our preference
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void hub238_check_negotiation();
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// Returns true when negotiation has finished
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bool hub238_has_negotiated();
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// Returns true when we have run selection and negotiated higher current
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bool hub238_has_run_selection();
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// Return an encoded state for debugging
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uint16_t hub238_debug_state();
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// Return selected source voltage in V
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uint16_t hub238_source_voltage();
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// Return selected source current in Amps * 100
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uint8_t hub238_source_currentX100();
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uint16_t hub238_getVoltagePDOCurrent(uint8_t voltage);
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#endif
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#endif
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