Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Cadence USBSS DRD Header File.
 *
 * Copyright (C) 2017-2018 NXP
 * Copyright (C) 2018-2019 Cadence.
 *
 * Authors: Peter Chen <peter.chen@nxp.com>
 *          Pawel Laszczak <pawell@cadence.com>
 */
#include <linux/usb/otg.h>
#include <linux/usb/role.h>
 
#ifndef __LINUX_CDNS3_CORE_H
#define __LINUX_CDNS3_CORE_H
 
struct cdns3;
 
/**
 * struct cdns3_role_driver - host/gadget role driver
 * @start: start this role
 * @stop: stop this role
 * @suspend: suspend callback for this role
 * @resume: resume callback for this role
 * @irq: irq handler for this role
 * @name: role name string (host/gadget)
 * @state: current state
 */
struct cdns3_role_driver {
<------>int (*start)(struct cdns3 *cdns);
<------>void (*stop)(struct cdns3 *cdns);
<------>int (*suspend)(struct cdns3 *cdns, bool do_wakeup);
<------>int (*resume)(struct cdns3 *cdns, bool hibernated);
<------>const char *name;
#define CDNS3_ROLE_STATE_INACTIVE	0
#define CDNS3_ROLE_STATE_ACTIVE		1
<------>int state;
};
 
#define CDNS3_XHCI_RESOURCES_NUM	2
 
struct cdns3_platform_data {
<------>int (*platform_suspend)(struct device *dev,
<------><------><------>bool suspend, bool wakeup);
<------>unsigned long quirks;
#define CDNS3_DEFAULT_PM_RUNTIME_ALLOW	BIT(0)
};
 
/**
 * struct cdns3 - Representation of Cadence USB3 DRD controller.
 * @dev: pointer to Cadence device struct
 * @xhci_regs: pointer to base of xhci registers
 * @xhci_res: the resource for xhci
 * @dev_regs: pointer to base of dev registers
 * @otg_res: the resource for otg
 * @otg_v0_regs: pointer to base of v0 otg registers
 * @otg_v1_regs: pointer to base of v1 otg registers
 * @otg_regs: pointer to base of otg registers
 * @otg_irq: irq number for otg controller
 * @dev_irq: irq number for device controller
 * @wakeup_irq: irq number for wakeup event, it is optional
 * @roles: array of supported roles for this controller
 * @role: current role
 * @host_dev: the child host device pointer for cdns3 core
 * @gadget_dev: the child gadget device pointer for cdns3 core
 * @usb2_phy: pointer to USB2 PHY
 * @usb3_phy: pointer to USB3 PHY
 * @mutex: the mutex for concurrent code at driver
 * @dr_mode: supported mode of operation it can be only Host, only Device
 *           or OTG mode that allow to switch between Device and Host mode.
 *           This field based on firmware setting, kernel configuration
 *           and hardware configuration.
 * @role_sw: pointer to role switch object.
 * @in_lpm: indicate the controller is in low power mode
 * @wakeup_pending: wakeup interrupt pending
 * @pdata: platform data from glue layer
 * @lock: spinlock structure
 * @xhci_plat_data: xhci private data structure pointer
 */
struct cdns3 {
<------>struct device			*dev;
<------>void __iomem			*xhci_regs;
<------>struct resource			xhci_res[CDNS3_XHCI_RESOURCES_NUM];
<------>struct cdns3_usb_regs __iomem	*dev_regs;
 
<------>struct resource			otg_res;
<------>struct cdns3_otg_legacy_regs	*otg_v0_regs;
<------>struct cdns3_otg_regs		*otg_v1_regs;
<------>struct cdns3_otg_common_regs	*otg_regs;
#define CDNS3_CONTROLLER_V0	0
#define CDNS3_CONTROLLER_V1	1
<------>u32				version;
<------>bool				phyrst_a_enable;
 
<------>int				otg_irq;
<------>int				dev_irq;
<------>int				wakeup_irq;
<------>struct cdns3_role_driver	*roles[USB_ROLE_DEVICE + 1];
<------>enum usb_role			role;
<------>struct platform_device		*host_dev;
<------>struct cdns3_device		*gadget_dev;
<------>struct phy			*usb2_phy;
<------>struct phy			*usb3_phy;
<------>/* mutext used in workqueue*/
<------>struct mutex			mutex;
<------>enum usb_dr_mode		dr_mode;
<------>struct usb_role_switch		*role_sw;
<------>bool				in_lpm;
<------>bool				wakeup_pending;
<------>struct cdns3_platform_data	*pdata;
<------>spinlock_t			lock;
<------>struct xhci_plat_priv		*xhci_plat_data;
};
 
int cdns3_hw_role_switch(struct cdns3 *cdns);
 
#endif /* __LINUX_CDNS3_CORE_H */