2 * Platform data for the chipidea USB dual role controller
5 #ifndef __LINUX_USB_CHIPIDEA_H
6 #define __LINUX_USB_CHIPIDEA_H
8 #include <linux/extcon.h>
9 #include <linux/usb/otg.h>
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 * @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
23 struct ci_hdrc_cable {
27 struct extcon_dev *edev;
29 struct notifier_block nb;
32 struct ci_hdrc_platform_data {
34 /* offset of the capability registers */
36 unsigned power_budget;
38 /* old usb_phy interface */
39 struct usb_phy *usb_phy;
40 enum usb_phy_interface phy_mode;
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)
49 * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
50 * but otg is not supported (no register otgsc).
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 enum usb_dr_mode dr_mode;
61 #define CI_HDRC_CONTROLLER_RESET_EVENT 0
62 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
63 void (*notify_event) (struct ci_hdrc *ci, unsigned event);
64 struct regulator *reg_vbus;
65 struct usb_otg_caps ci_otg_caps;
67 /* interrupt threshold setting */
73 /* VBUS and ID signal state tracking, using extcon framework */
74 struct ci_hdrc_cable vbus_extcon;
75 struct ci_hdrc_cable id_extcon;
76 u32 phy_clkgate_delay_us;
79 /* Default offset of capability registers */
80 #define DEF_CAPOFFSET 0x100
82 /* Add ci hdrc device */
83 struct platform_device *ci_hdrc_add_device(struct device *dev,
84 struct resource *res, int nres,
85 struct ci_hdrc_platform_data *platdata);
86 /* Remove ci hdrc device */
87 void ci_hdrc_remove_device(struct platform_device *pdev);