1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Platform data for the chipidea USB dual role controller 4 */ 5 6 #ifndef __LINUX_USB_CHIPIDEA_H 7 #define __LINUX_USB_CHIPIDEA_H 8 9 #include <linux/extcon.h> 10 #include <linux/usb/otg.h> 11 12 struct ci_hdrc; 13 14 /** 15 * struct ci_hdrc_cable - structure for external connector cable state tracking 16 * @connected: true if cable is connected, false otherwise 17 * @changed: set to true when extcon event happen 18 * @enabled: set to true if we've enabled the vbus or id interrupt 19 * @edev: device which generate events 20 * @ci: driver state of the chipidea device 21 * @nb: hold event notification callback 22 * @conn: used for notification registration 23 */ 24 struct ci_hdrc_cable { 25 bool connected; 26 bool changed; 27 bool enabled; 28 struct extcon_dev *edev; 29 struct ci_hdrc *ci; 30 struct notifier_block nb; 31 }; 32 33 struct ci_hdrc_platform_data { 34 const char *name; 35 /* offset of the capability registers */ 36 uintptr_t capoffset; 37 unsigned power_budget; 38 struct phy *phy; 39 /* old usb_phy interface */ 40 struct usb_phy *usb_phy; 41 enum usb_phy_interface phy_mode; 42 unsigned long flags; 43 #define CI_HDRC_REGS_SHARED BIT(0) 44 #define CI_HDRC_DISABLE_DEVICE_STREAMING BIT(1) 45 #define CI_HDRC_SUPPORTS_RUNTIME_PM BIT(2) 46 #define CI_HDRC_DISABLE_HOST_STREAMING BIT(3) 47 #define CI_HDRC_DISABLE_STREAMING (CI_HDRC_DISABLE_DEVICE_STREAMING | \ 48 CI_HDRC_DISABLE_HOST_STREAMING) 49 /* 50 * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1, 51 * but otg is not supported (no register otgsc). 52 */ 53 #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) 54 #define CI_HDRC_IMX28_WRITE_FIX BIT(5) 55 #define CI_HDRC_FORCE_FULLSPEED BIT(6) 56 #define CI_HDRC_TURN_VBUS_EARLY_ON BIT(7) 57 #define CI_HDRC_SET_NON_ZERO_TTHA BIT(8) 58 #define CI_HDRC_OVERRIDE_AHB_BURST BIT(9) 59 #define CI_HDRC_OVERRIDE_TX_BURST BIT(10) 60 #define CI_HDRC_OVERRIDE_RX_BURST BIT(11) 61 #define CI_HDRC_OVERRIDE_PHY_CONTROL BIT(12) /* Glue layer manages phy */ 62 #define CI_HDRC_REQUIRES_ALIGNED_DMA BIT(13) 63 #define CI_HDRC_IMX_IS_HSIC BIT(14) 64 #define CI_HDRC_PMQOS BIT(15) 65 #define CI_HDRC_PHY_VBUS_CONTROL BIT(16) 66 enum usb_dr_mode dr_mode; 67 #define CI_HDRC_CONTROLLER_RESET_EVENT 0 68 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 69 #define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2 70 #define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3 71 #define CI_HDRC_CONTROLLER_VBUS_EVENT 4 72 int (*notify_event) (struct ci_hdrc *ci, unsigned event); 73 struct regulator *reg_vbus; 74 struct usb_otg_caps ci_otg_caps; 75 bool tpl_support; 76 /* interrupt threshold setting */ 77 u32 itc_setting; 78 u32 ahb_burst_config; 79 u32 tx_burst_size; 80 u32 rx_burst_size; 81 82 /* VBUS and ID signal state tracking, using extcon framework */ 83 struct ci_hdrc_cable vbus_extcon; 84 struct ci_hdrc_cable id_extcon; 85 u32 phy_clkgate_delay_us; 86 87 /* pins */ 88 struct pinctrl *pctl; 89 struct pinctrl_state *pins_default; 90 struct pinctrl_state *pins_host; 91 struct pinctrl_state *pins_device; 92 93 /* platform-specific hooks */ 94 int (*hub_control)(struct ci_hdrc *ci, u16 typeReq, u16 wValue, 95 u16 wIndex, char *buf, u16 wLength, 96 bool *done, unsigned long *flags); 97 void (*enter_lpm)(struct ci_hdrc *ci, bool enable); 98 }; 99 100 /* Default offset of capability registers */ 101 #define DEF_CAPOFFSET 0x100 102 103 /* Add ci hdrc device */ 104 struct platform_device *ci_hdrc_add_device(struct device *dev, 105 struct resource *res, int nres, 106 struct ci_hdrc_platform_data *platdata); 107 /* Remove ci hdrc device */ 108 void ci_hdrc_remove_device(struct platform_device *pdev); 109 /* Get current available role */ 110 enum usb_dr_mode ci_hdrc_query_available_role(struct platform_device *pdev); 111 112 #endif 113