mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
136 lines
4.3 KiB
136 lines
4.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* Cadence USBSS and USBSSP DRD Header File. |
|
* |
|
* Copyright (C) 2017-2018 NXP |
|
* Copyright (C) 2018-2019 Cadence. |
|
* |
|
* Authors: Peter Chen <[email protected]> |
|
* Pawel Laszczak <[email protected]> |
|
*/ |
|
#include <linux/usb/otg.h> |
|
#include <linux/usb/role.h> |
|
|
|
#ifndef __LINUX_CDNS3_CORE_H |
|
#define __LINUX_CDNS3_CORE_H |
|
|
|
struct cdns; |
|
|
|
/** |
|
* struct cdns_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 cdns_role_driver { |
|
int (*start)(struct cdns *cdns); |
|
void (*stop)(struct cdns *cdns); |
|
int (*suspend)(struct cdns *cdns, bool do_wakeup); |
|
int (*resume)(struct cdns *cdns, bool hibernated); |
|
const char *name; |
|
#define CDNS_ROLE_STATE_INACTIVE 0 |
|
#define CDNS_ROLE_STATE_ACTIVE 1 |
|
int state; |
|
}; |
|
|
|
#define CDNS_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 cdns - 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_cdnsp_regs: pointer to base of CDNSP otg registers |
|
* @otg_regs: pointer to base of otg registers |
|
* @otg_irq_regs: pointer to interrupt 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 cdns core |
|
* @gadget_dev: the child gadget device pointer |
|
* @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 |
|
* @gadget_init: pointer to gadget initialization function |
|
*/ |
|
struct cdns { |
|
struct device *dev; |
|
void __iomem *xhci_regs; |
|
struct resource xhci_res[CDNS_XHCI_RESOURCES_NUM]; |
|
struct cdns3_usb_regs __iomem *dev_regs; |
|
|
|
struct resource otg_res; |
|
struct cdns3_otg_legacy_regs __iomem *otg_v0_regs; |
|
struct cdns3_otg_regs __iomem *otg_v1_regs; |
|
struct cdnsp_otg_regs __iomem *otg_cdnsp_regs; |
|
struct cdns_otg_common_regs __iomem *otg_regs; |
|
struct cdns_otg_irq_regs __iomem *otg_irq_regs; |
|
#define CDNS3_CONTROLLER_V0 0 |
|
#define CDNS3_CONTROLLER_V1 1 |
|
#define CDNSP_CONTROLLER_V2 2 |
|
u32 version; |
|
bool phyrst_a_enable; |
|
|
|
int otg_irq; |
|
int dev_irq; |
|
int wakeup_irq; |
|
struct cdns_role_driver *roles[USB_ROLE_DEVICE + 1]; |
|
enum usb_role role; |
|
struct platform_device *host_dev; |
|
void *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 (*gadget_init)(struct cdns *cdns); |
|
}; |
|
|
|
int cdns_hw_role_switch(struct cdns *cdns); |
|
int cdns_init(struct cdns *cdns); |
|
int cdns_remove(struct cdns *cdns); |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
int cdns_resume(struct cdns *cdns, u8 set_active); |
|
int cdns_suspend(struct cdns *cdns); |
|
#else /* CONFIG_PM_SLEEP */ |
|
static inline int cdns_resume(struct cdns *cdns, u8 set_active) |
|
{ return 0; } |
|
static inline int cdns_suspend(struct cdns *cdns) |
|
{ return 0; } |
|
#endif /* CONFIG_PM_SLEEP */ |
|
#endif /* __LINUX_CDNS3_CORE_H */
|
|
|