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 * @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 */
  23struct 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
  32struct 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        enum usb_dr_mode        dr_mode;
  62#define CI_HDRC_CONTROLLER_RESET_EVENT          0
  63#define CI_HDRC_CONTROLLER_STOPPED_EVENT        1
  64        int     (*notify_event) (struct ci_hdrc *ci, unsigned event);
  65        struct regulator        *reg_vbus;
  66        struct usb_otg_caps     ci_otg_caps;
  67        bool                    tpl_support;
  68        /* interrupt threshold setting */
  69        u32                     itc_setting;
  70        u32                     ahb_burst_config;
  71        u32                     tx_burst_size;
  72        u32                     rx_burst_size;
  73
  74        /* VBUS and ID signal state tracking, using extcon framework */
  75        struct ci_hdrc_cable            vbus_extcon;
  76        struct ci_hdrc_cable            id_extcon;
  77        u32                     phy_clkgate_delay_us;
  78};
  79
  80/* Default offset of capability registers */
  81#define DEF_CAPOFFSET           0x100
  82
  83/* Add ci hdrc device */
  84struct platform_device *ci_hdrc_add_device(struct device *dev,
  85                        struct resource *res, int nres,
  86                        struct ci_hdrc_platform_data *platdata);
  87/* Remove ci hdrc device */
  88void ci_hdrc_remove_device(struct platform_device *pdev);
  89
  90#endif
  91