79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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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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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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struct pd_phy_ops {
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int (*open)(struct pd_phy_params *params);
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int (*signal)(enum pd_sig_type sig);
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int (*write)(u16 hdr, const u8 *data, size_t data_len,
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enum pd_sop_type sop);
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int (*update_roles)(enum data_role dr, enum power_role pr);
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int (*update_frame_filter)(u8 frame_filter_val);
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void (*close)(void);
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};
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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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struct pd_phy_ops *pdphy_ops);
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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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struct pd_phy_ops *pdphy_ops)
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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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#endif /* _USBPD_H */
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