Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /* 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 <peter.chen@nxp.com> * Pawel Laszczak <pawell@cadence.com> */ #ifndef __LINUX_CDNS3_CORE_H #define __LINUX_CDNS3_CORE_H #include <linux/usb/otg.h> #include <linux/usb/role.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); int cdns_suspend(struct cdns *cdns); void cdns_set_active(struct cdns *cdns, u8 set_active); #else /* CONFIG_PM_SLEEP */ static inline int cdns_resume(struct cdns *cdns) { return 0; } static inline int cdns_set_active(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 */ |