mirror of
https://github.com/No-Chicken/Power-Pico.git
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77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
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/**
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* FUSB302_UFP.h
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*
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* Updated on: Jan 4, 2021
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* Author: Ryan Ma
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*
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* Minimalist USB PD implement with only UFP(device) functionality
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* Requires only stdint.h and string.h
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* No use of bit-field for better cross-platform compatibility
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*
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* FUSB302 can support PD3.0 with limitations and workarounds
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* - Do not have enough FIFO for unchunked message, use chunked message instead
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* - VBUS sense low threshold at 4V, disable vbus_sense if request PPS below 4V
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*
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*/
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#ifndef FUSB302_UFP_H
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#define FUSB302_UFP_H
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#include <stdint.h>
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enum {
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FUSB302_SUCCESS = 0,
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FUSB302_BUSY = (1 << 0),
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FUSB302_ERR_PARAM = (1 << 1),
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FUSB302_ERR_DEVICE_ID = (1 << 2),
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FUSB302_ERR_READ_DEVICE = (1 << 3),
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FUSB302_ERR_WRITE_DEVICE = (1 << 4)
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};
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typedef uint8_t FUSB302_ret_t;
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#define FUSB302_EVENT_ATTACHED (1 << 0)
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#define FUSB302_EVENT_DETACHED (1 << 1)
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#define FUSB302_EVENT_RX_SOP (1 << 2)
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#define FUSB302_EVENT_GOOD_CRC_SENT (1 << 3)
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typedef uint8_t FUSB302_event_t;
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typedef struct {
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/* setup by user */
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uint8_t i2c_address;
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FUSB302_ret_t (*i2c_read)(uint8_t dev_addr, uint8_t reg_addr, uint8_t *data, uint8_t count);
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FUSB302_ret_t (*i2c_write)(uint8_t dev_addr, uint8_t reg_addr, uint8_t *data, uint8_t count);
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FUSB302_ret_t (*delay_ms)(uint32_t t);
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/* used by this library */
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const char * err_msg;
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uint16_t rx_header;
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uint8_t rx_buffer[32];
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uint8_t reg_control[15];
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uint8_t reg_status[7];
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uint8_t interrupta;
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uint8_t interruptb;
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uint8_t cc1;
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uint8_t cc2;
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uint8_t state;
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uint8_t vbus_sense;
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} FUSB302_dev_t;
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static inline const char * FUSB302_get_last_err_msg(FUSB302_dev_t *dev) { return dev->err_msg; }
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FUSB302_ret_t FUSB302_init (FUSB302_dev_t *dev);
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FUSB302_ret_t FUSB302_pd_reset (FUSB302_dev_t *dev);
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FUSB302_ret_t FUSB302_pdwn_cc (FUSB302_dev_t *dev, uint8_t enable);
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FUSB302_ret_t FUSB302_set_vbus_sense (FUSB302_dev_t *dev, uint8_t enable);
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FUSB302_ret_t FUSB302_get_ID (FUSB302_dev_t *dev, uint8_t *version_ID, uint8_t *revision_ID);
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FUSB302_ret_t FUSB302_get_cc (FUSB302_dev_t *dev, uint8_t *cc1, uint8_t *cc2);
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FUSB302_ret_t FUSB302_get_vbus_level (FUSB302_dev_t *dev, uint8_t *vbus);
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FUSB302_ret_t FUSB302_get_message (FUSB302_dev_t *dev, uint16_t *header, uint32_t *data);
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FUSB302_ret_t FUSB302_tx_sop (FUSB302_dev_t *dev, uint16_t header, const uint32_t *data);
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FUSB302_ret_t FUSB302_tx_hard_reset (FUSB302_dev_t *dev);
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FUSB302_ret_t FUSB302_alert (FUSB302_dev_t *dev, FUSB302_event_t *events);
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#endif /* FUSB302_H */
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