/* FUSB302.h - Library for interacting with the FUSB302B chip. Copyright 2010 The Chromium OS Authors Copyright 2017 Jason Cerundolo Released under an MIT license. See LICENSE file. */ #ifndef fusb302_H #define fusb302_H #ifdef __cplusplus extern "C" { #endif #include #include "usb_pd_tcpm.h" /* Chip Device ID - 302A or 302B */ #define fusb302_DEVID_302A 0x08 #define fusb302_DEVID_302B 0x09 /* I2C slave address varies by part number */ /* FUSB302BUCX / FUSB302BMPX */ #define fusb302_I2C_SLAVE_ADDR 0x22 // 7-bit address for Arduino /* FUSB302B01MPX */ #define fusb302_I2C_SLAVE_ADDR_B01 0x23 /* FUSB302B10MPX */ #define fusb302_I2C_SLAVE_ADDR_B10 0x24 /* FUSB302B11MPX */ #define fusb302_I2C_SLAVE_ADDR_B11 0x25 /* Default retry count for transmitting */ #define PD_RETRY_COUNT 3 /* Time to wait for TCPC to complete transmit */ #define PD_T_TCPC_TX_TIMEOUT (100*MSEC_US) #define TCPC_REG_DEVICE_ID 0x01 #define TCPC_REG_SWITCHES0 0x02 #define TCPC_REG_SWITCHES0_CC2_PU_EN (1<<7) #define TCPC_REG_SWITCHES0_CC1_PU_EN (1<<6) #define TCPC_REG_SWITCHES0_VCONN_CC2 (1<<5) #define TCPC_REG_SWITCHES0_VCONN_CC1 (1<<4) #define TCPC_REG_SWITCHES0_MEAS_CC2 (1<<3) #define TCPC_REG_SWITCHES0_MEAS_CC1 (1<<2) #define TCPC_REG_SWITCHES0_CC2_PD_EN (1<<1) #define TCPC_REG_SWITCHES0_CC1_PD_EN (1<<0) #define TCPC_REG_SWITCHES1 0x03 #define TCPC_REG_SWITCHES1_POWERROLE (1<<7) #define TCPC_REG_SWITCHES1_SPECREV1 (1<<6) #define TCPC_REG_SWITCHES1_SPECREV0 (1<<5) #define TCPC_REG_SWITCHES1_DATAROLE (1<<4) #define TCPC_REG_SWITCHES1_AUTO_GCRC (1<<2) #define TCPC_REG_SWITCHES1_TXCC2_EN (1<<1) #define TCPC_REG_SWITCHES1_TXCC1_EN (1<<0) #define TCPC_REG_MEASURE 0x04 #define TCPC_REG_MEASURE_VBUS (1<<6) #define TCPC_REG_MEASURE_MDAC_MV(mv) (((mv)/42) & 0x3f) #define TCPC_REG_CONTROL0 0x06 #define TCPC_REG_CONTROL0_TX_FLUSH (1<<6) #define TCPC_REG_CONTROL0_INT_MASK (1<<5) #define TCPC_REG_CONTROL0_HOST_CUR_MASK (3<<2) #define TCPC_REG_CONTROL0_HOST_CUR_3A0 (3<<2) #define TCPC_REG_CONTROL0_HOST_CUR_1A5 (2<<2) #define TCPC_REG_CONTROL0_HOST_CUR_USB (1<<2) #define TCPC_REG_CONTROL0_TX_START (1<<0) #define TCPC_REG_CONTROL1 0x07 #define TCPC_REG_CONTROL1_ENSOP2DB (1<<6) #define TCPC_REG_CONTROL1_ENSOP1DB (1<<5) #define TCPC_REG_CONTROL1_BIST_MODE2 (1<<4) #define TCPC_REG_CONTROL1_RX_FLUSH (1<<2) #define TCPC_REG_CONTROL1_ENSOP2 (1<<1) #define TCPC_REG_CONTROL1_ENSOP1 (1<<0) #define TCPC_REG_CONTROL2 0x08 /* two-bit field, valid values below */ #define TCPC_REG_CONTROL2_MODE (1<<1) #define TCPC_REG_CONTROL2_MODE_DFP (0x3) #define TCPC_REG_CONTROL2_MODE_UFP (0x2) #define TCPC_REG_CONTROL2_MODE_DRP (0x1) #define TCPC_REG_CONTROL2_MODE_POS (1) #define TCPC_REG_CONTROL2_TOGGLE (1<<0) #define TCPC_REG_CONTROL3 0x09 #define TCPC_REG_CONTROL3_SEND_HARDRESET (1<<6) #define TCPC_REG_CONTROL3_BIST_TMODE (1<<5) /* 302B Only */ #define TCPC_REG_CONTROL3_AUTO_HARDRESET (1<<4) #define TCPC_REG_CONTROL3_AUTO_SOFTRESET (1<<3) /* two-bit field */ #define TCPC_REG_CONTROL3_N_RETRIES (1<<1) #define TCPC_REG_CONTROL3_N_RETRIES_POS (1) #define TCPC_REG_CONTROL3_N_RETRIES_SIZE (2) #define TCPC_REG_CONTROL3_AUTO_RETRY (1<<0) #define TCPC_REG_MASK 0x0A #define TCPC_REG_MASK_VBUSOK (1<<7) #define TCPC_REG_MASK_ACTIVITY (1<<6) #define TCPC_REG_MASK_COMP_CHNG (1<<5) #define TCPC_REG_MASK_CRC_CHK (1<<4) #define TCPC_REG_MASK_ALERT (1<<3) #define TCPC_REG_MASK_WAKE (1<<2) #define TCPC_REG_MASK_COLLISION (1<<1) #define TCPC_REG_MASK_BC_LVL (1<<0) #define TCPC_REG_POWER 0x0B #define TCPC_REG_POWER_PWR (1<<0) /* four-bit field */ #define TCPC_REG_POWER_PWR_LOW 0x1 /* Bandgap + Wake circuitry */ #define TCPC_REG_POWER_PWR_MEDIUM 0x3 /* LOW + Receiver + Current refs */ #define TCPC_REG_POWER_PWR_HIGH 0x7 /* MEDIUM + Measure block */ #define TCPC_REG_POWER_PWR_ALL 0xF /* HIGH + Internal Oscillator */ #define TCPC_REG_RESET 0x0C #define TCPC_REG_RESET_PD_RESET (1<<1) #define TCPC_REG_RESET_SW_RESET (1<<0) #define TCPC_REG_MASKA 0x0E #define TCPC_REG_MASKA_OCP_TEMP (1<<7) #define TCPC_REG_MASKA_TOGDONE (1<<6) #define TCPC_REG_MASKA_SOFTFAIL (1<<5) #define TCPC_REG_MASKA_RETRYFAIL (1<<4) #define TCPC_REG_MASKA_HARDSENT (1<<3) #define TCPC_REG_MASKA_TX_SUCCESS (1<<2) #define TCPC_REG_MASKA_SOFTRESET (1<<1) #define TCPC_REG_MASKA_HARDRESET (1<<0) #define TCPC_REG_MASKB 0x0F #define TCPC_REG_MASKB_GCRCSENT (1<<0) #define TCPC_REG_STATUS0A 0x3C #define TCPC_REG_STATUS0A_SOFTFAIL (1<<5) #define TCPC_REG_STATUS0A_RETRYFAIL (1<<4) #define TCPC_REG_STATUS0A_POWER (1<<2) /* two-bit field */ #define TCPC_REG_STATUS0A_RX_SOFT_RESET (1<<1) #define TCPC_REG_STATUS0A_RX_HARD_RESET (1<<0) #define TCPC_REG_STATUS1A 0x3D /* three-bit field, valid values below */ #define TCPC_REG_STATUS1A_TOGSS (1<<3) #define TCPC_REG_STATUS1A_TOGSS_RUNNING 0x0 #define TCPC_REG_STATUS1A_TOGSS_SRC1 0x1 #define TCPC_REG_STATUS1A_TOGSS_SRC2 0x2 #define TCPC_REG_STATUS1A_TOGSS_SNK1 0x5 #define TCPC_REG_STATUS1A_TOGSS_SNK2 0x6 #define TCPC_REG_STATUS1A_TOGSS_AA 0x7 #define TCPC_REG_STATUS1A_TOGSS_POS (3) #define TCPC_REG_STATUS1A_TOGSS_MASK (0x7) #define TCPC_REG_STATUS1A_RXSOP2DB (1<<2) #define TCPC_REG_STATUS1A_RXSOP1DB (1<<1) #define TCPC_REG_STATUS1A_RXSOP (1<<0) #define TCPC_REG_INTERRUPTA 0x3E #define TCPC_REG_INTERRUPTA_OCP_TEMP (1<<7) #define TCPC_REG_INTERRUPTA_TOGDONE (1<<6) #define TCPC_REG_INTERRUPTA_SOFTFAIL (1<<5) #define TCPC_REG_INTERRUPTA_RETRYFAIL (1<<4) #define TCPC_REG_INTERRUPTA_HARDSENT (1<<3) #define TCPC_REG_INTERRUPTA_TX_SUCCESS (1<<2) #define TCPC_REG_INTERRUPTA_SOFTRESET (1<<1) #define TCPC_REG_INTERRUPTA_HARDRESET (1<<0) #define TCPC_REG_INTERRUPTB 0x3F #define TCPC_REG_INTERRUPTB_GCRCSENT (1<<0) #define TCPC_REG_STATUS0 0x40 #define TCPC_REG_STATUS0_VBUSOK (1<<7) #define TCPC_REG_STATUS0_ACTIVITY (1<<6) #define TCPC_REG_STATUS0_COMP (1<<5) #define TCPC_REG_STATUS0_CRC_CHK (1<<4) #define TCPC_REG_STATUS0_ALERT (1<<3) #define TCPC_REG_STATUS0_WAKE (1<<2) #define TCPC_REG_STATUS0_BC_LVL1 (1<<1) /* two-bit field */ #define TCPC_REG_STATUS0_BC_LVL0 (1<<0) /* two-bit field */ #define TCPC_REG_STATUS1 0x41 #define TCPC_REG_STATUS1_RXSOP2 (1<<7) #define TCPC_REG_STATUS1_RXSOP1 (1<<6) #define TCPC_REG_STATUS1_RX_EMPTY (1<<5) #define TCPC_REG_STATUS1_RX_FULL (1<<4) #define TCPC_REG_STATUS1_TX_EMPTY (1<<3) #define TCPC_REG_STATUS1_TX_FULL (1<<2) #define TCPC_REG_INTERRUPT 0x42 #define TCPC_REG_INTERRUPT_VBUSOK (1<<7) #define TCPC_REG_INTERRUPT_ACTIVITY (1<<6) #define TCPC_REG_INTERRUPT_COMP_CHNG (1<<5) #define TCPC_REG_INTERRUPT_CRC_CHK (1<<4) #define TCPC_REG_INTERRUPT_ALERT (1<<3) #define TCPC_REG_INTERRUPT_WAKE (1<<2) #define TCPC_REG_INTERRUPT_COLLISION (1<<1) #define TCPC_REG_INTERRUPT_BC_LVL (1<<0) #define TCPC_REG_FIFOS 0x43 /* Tokens defined for the FUSB302 TX FIFO */ enum fusb302_txfifo_tokens { fusb302_TKN_TXON = 0xA1, fusb302_TKN_SYNC1 = 0x12, fusb302_TKN_SYNC2 = 0x13, fusb302_TKN_SYNC3 = 0x1B, fusb302_TKN_RST1 = 0x15, fusb302_TKN_RST2 = 0x16, fusb302_TKN_PACKSYM = 0x80, fusb302_TKN_JAMCRC = 0xFF, fusb302_TKN_EOP = 0x14, fusb302_TKN_TXOFF = 0xFE, }; enum fusb302_rxfifo_tokens { fusb302_TKN_SOP = 0xE0, fusb302_TKN_SOP1 = 0xC0, fusb302_TKN_SOP2 = 0xA0, fusb302_TKN_SOP1DB = 0x80, fusb302_TKN_SOP2DB = 0x60, fusb302_TKN_SOP_MASK = 0xE0, }; extern const struct tcpm_drv fusb302_tcpm_drv; // Common methods for TCPM implementations int16_t fusb302_tcpm_init(int16_t port); void fusb302_pd_reset(int16_t port); void fusb302_flush_rx_fifo(int16_t port); void fusb302_flush_tx_fifo(int16_t port); void fusb302_auto_goodcrc_enable(int16_t port, int16_t enable); int16_t fusb302_tcpm_get_cc(int16_t port, int16_t *cc1, int16_t *cc2); int16_t fusb302_tcpm_set_cc(int16_t port, int16_t pull); int16_t fusb302_tcpm_set_polarity(int16_t port, int16_t polarity); int16_t fusb302_tcpm_set_vconn(int16_t port, int16_t enable); int16_t fusb302_tcpm_set_msg_header(int16_t port, int16_t power_role, int16_t data_role); int16_t fusb302_tcpm_set_rx_enable(int16_t port, int16_t enable); int16_t fusb302_tcpm_get_message(int16_t port, uint32_t *payload, int16_t *head, enum fusb302_rxfifo_tokens *sop); int16_t fusb302_tcpm_transmit(int16_t port, enum tcpm_transmit_type type, uint16_t header, const uint32_t *data); int16_t fusb302_tcpm_get_vbus_level(int16_t port); int16_t fusb302_tcpm_select_rp_value(int16_t port, int16_t rp); void fusb302_get_irq(int16_t port, int16_t *irq, int16_t *irqa, int16_t *irqb); int16_t fusb302_rx_fifo_is_empty(int16_t port); #ifdef __cplusplus } #endif #endif /* fusb302_H */