| /* 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 |
| #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 |