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chipidea.h
/* SPDX-License-Identifier: GPL-2.0 */ /* * Platform data for the chipidea USB dual role controller */ #ifndef __LINUX_USB_CHIPIDEA_H #define __LINUX_USB_CHIPIDEA_H #include <linux/extcon.h> #include <linux/usb/otg.h> struct ci_hdrc; /** * struct ci_hdrc_cable - structure for external connector cable state tracking * @connected: true if cable is connected, false otherwise * @changed: set to true when extcon event happen * @enabled: set to true if we've enabled the vbus or id interrupt * @edev: device which generate events * @ci: driver state of the chipidea device * @nb: hold event notification callback * @conn: used for notification registration */ struct ci_hdrc_cable { bool connected; bool changed; bool enabled; struct extcon_dev *edev; struct ci_hdrc *ci; struct notifier_block nb; }; struct ci_hdrc_platform_data { const char *name; /* offset of the capability registers */ uintptr_t capoffset; unsigned power_budget; struct phy *phy; /* old usb_phy interface */ struct usb_phy *usb_phy; enum usb_phy_interface phy_mode; unsigned long flags; #define CI_HDRC_REGS_SHARED BIT(0) #define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1) #define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2) #define CI_HDRC_DISABLE_HOST_STREAMING BIT(3) #define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \ CI_HDRC_DISABLE_HOST_STREAMING) /* * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1, * but otg is not supported (no register otgsc). */ #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) #define CI_HDRC_IMX28_WRITE_FIX BIT(5) #define CI_HDRC_FORCE_FULLSPEED BIT(6) #define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) #define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) #define CI_HDRC_OVERRIDE_AHB_BURST BIT(9) #define CI_HDRC_OVERRIDE_TX_BURST BIT(10) #define CI_HDRC_OVERRIDE_RX_BURST BIT(11) #define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ #define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) #define CI_HDRC_IMX_IS_HSIC BIT(14) #define CI_HDRC_PMQOS BIT(15) #define CI_HDRC_PHY_VBUS_CONTROL BIT(16) #define CI_HDRC_HAS_PORTSC_PEC_MISSED BIT(17) #define CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS BIT(18) #define CI_HDRC_HAS_SHORT_PKT_LIMIT BIT(19) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 #define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2 #define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3 #define CI_HDRC_CONTROLLER_VBUS_EVENT 4 int (*notify_event) (struct ci_hdrc *ci, unsigned event); struct regulator *reg_vbus; struct usb_otg_caps ci_otg_caps; bool tpl_support; /* interrupt threshold setting */ u32 itc_setting; u32 ahb_burst_config; u32 tx_burst_size; u32 rx_burst_size; /* VBUS and ID signal state tracking, using extcon framework */ struct ci_hdrc_cable vbus_extcon; struct ci_hdrc_cable id_extcon; u32 phy_clkgate_delay_us; /* pins */ struct pinctrl *pctl; struct pinctrl_state *pins_default; struct pinctrl_state *pins_host; struct pinctrl_state *pins_device; /* platform-specific hooks */ int (*hub_control)(struct ci_hdrc *ci, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength, bool *done, unsigned long *flags); void (*enter_lpm)(struct ci_hdrc *ci, bool enable); }; /* Default offset of capability registers */ #define DEF_CAPOFFSET 0x100 /* Add ci hdrc device */ struct platform_device *ci_hdrc_add_device(struct device *dev, struct resource *res, int nres, struct ci_hdrc_platform_data *platdata); /* Remove ci hdrc device */ void ci_hdrc_remove_device(struct platform_device *pdev); /* Get current available role */ enum usb_dr_mode ci_hdrc_query_available_role(struct platform_device *pdev); #endif
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