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