LXR linux/include/linux/usb/chipidea.h

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