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/* 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)
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
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;
};
/* 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);
#endif