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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef __USBC_MUX_H__
#define __USBC_MUX_H__
/* struct to hold all USB-C mux related variables */
struct usbc_mux_info {
bool dp; /* DP connected */
bool usb; /* USB connected */
bool cable; /* 0 = Passive cable, 1 = Active cable */
bool polarity; /* Polarity of connected device. 0 = Normal, 1 = Flipped */
bool hpd_lvl; /* HPD Level assert */
bool hpd_irq; /* HPD IRQ assert */
bool ufp; /* 0 = DFP, 1 = UFP */
bool dbg_acc; /* Debug Accessory. 0 = Disable, 1 = Enable */
uint8_t dp_pin_mode; /* DP pin assignments
0h: Reserved.
1h: Pin Assignment A.
2h: Pin Assignment B.
3h: Pin Assignment C.
4h: Pin Assignment D.
5h: Pin Assignment E.
6h: Pin Assignment F.
7-Fh: Reserved. */
};
struct usbc_mux_ops {
/*
* Get mux information on a given port.
*
* Return value:
* -1 = error
* 0 = success
*/
int (*get_mux_info)(int port, struct usbc_mux_info *info);
};
struct usbc_dp_ops {
/*
* Wait up to `timeout_ms` for DP connection to be ready on any available port.
*
* Return value:
* -1 = error
* 0 = no DP connection
* <bit mask> = mask for ports that are ready in DP mode.
*/
int (*wait_for_connection)(long timeout_ms);
/*
* Enter DP mode on a given `port`.
*
* Return value:
* -1 = error
* 0 = success
*/
int (*enter_dp_mode)(int port);
/*
* Wait up to `timeout_ms` for HPD on a given port.
*
* Return value:
* -1 = timeout
* 0 = success
*/
int (*wait_for_hpd)(int port, long timeout_ms);
};
struct usbc_ops {
struct usbc_mux_ops mux_ops;
struct usbc_dp_ops dp_ops;
};
const struct usbc_ops *usbc_get_ops(void);
#endif /* __USBC_MUX_H__ */
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