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113 lines
2.5 KiB
113 lines
2.5 KiB
/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _USBPD_H
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#define _USBPD_H
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#include <linux/device.h>
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struct usbpd;
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#if IS_ENABLED(CONFIG_USB_PD_POLICY)
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struct usbpd *usbpd_create(struct device *parent);
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void usbpd_destroy(struct usbpd *pd);
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#else
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static inline struct usbpd *usbpd_create(struct device *parent)
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{
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return ERR_PTR(-ENODEV);
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}
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static inline void usbpd_destroy(struct usbpd *pd) { }
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#endif
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enum data_role {
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DR_NONE = -1,
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DR_UFP = 0,
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DR_DFP = 1,
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};
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enum power_role {
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PR_NONE = -1,
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PR_SINK = 0,
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PR_SRC = 1,
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};
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enum pd_sig_type {
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HARD_RESET_SIG = 0,
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CABLE_RESET_SIG,
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};
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enum pd_sop_type {
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SOP_MSG = 0,
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SOPI_MSG,
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SOPII_MSG,
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};
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enum pd_spec_rev {
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USBPD_REV_20 = 1,
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USBPD_REV_30 = 2,
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};
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/* enable msg and signal to be received by phy */
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#define FRAME_FILTER_EN_SOP BIT(0)
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#define FRAME_FILTER_EN_SOPI BIT(1)
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#define FRAME_FILTER_EN_HARD_RESET BIT(5)
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struct pd_phy_params {
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void (*signal_cb)(struct usbpd *pd, enum pd_sig_type sig);
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void (*msg_rx_cb)(struct usbpd *pd, enum pd_sop_type sop,
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u8 *buf, size_t len);
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void (*shutdown_cb)(struct usbpd *pd);
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enum data_role data_role;
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enum power_role power_role;
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u8 frame_filter_val;
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};
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#if IS_ENABLED(CONFIG_QPNP_USB_PDPHY)
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int pd_phy_open(struct pd_phy_params *params);
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int pd_phy_signal(enum pd_sig_type sig);
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int pd_phy_write(u16 hdr, const u8 *data, size_t data_len,
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enum pd_sop_type sop);
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int pd_phy_update_roles(enum data_role dr, enum power_role pr);
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int pd_phy_update_frame_filter(u8 frame_filter_val);
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void pd_phy_close(void);
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#else
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static inline int pd_phy_open(struct pd_phy_params *params)
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{
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return -ENODEV;
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}
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static inline int pd_phy_signal(enum pd_sig_type type)
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{
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return -ENODEV;
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}
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static inline int pd_phy_write(u16 hdr, const u8 *data, size_t data_len,
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enum pd_sop_type sop)
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{
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return -ENODEV;
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}
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static inline int pd_phy_update_roles(enum data_role dr, enum power_role pr)
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{
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return -ENODEV;
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}
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static inline int pd_phy_update_frame_filter(u8 frame_filter_val)
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{
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return -ENODEV;
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}
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static inline void pd_phy_close(void)
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{
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}
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#endif
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#endif /* _USBPD_H */
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