1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Platform data for the chipidea USB dual role controller
6 #ifndef __LINUX_USB_CHIPIDEA_H
7 #define __LINUX_USB_CHIPIDEA_H
9 #include <linux/extcon.h>
10 #include <linux/usb/otg.h>
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
24 struct ci_hdrc_cable {
28 struct extcon_dev *edev;
30 struct notifier_block nb;
33 struct ci_hdrc_platform_data {
35 /* offset of the capability registers */
37 unsigned power_budget;
39 /* old usb_phy interface */
40 struct usb_phy *usb_phy;
41 enum usb_phy_interface phy_mode;
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)
50 * Only set it when DCCPARAMS.DC==1 and DCCPARAMS.HC==1,
51 * but otg is not supported (no register otgsc).
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 enum usb_dr_mode dr_mode;
65 #define CI_HDRC_CONTROLLER_RESET_EVENT 0
66 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
67 #define CI_HDRC_IMX_HSIC_ACTIVE_EVENT 2
68 #define CI_HDRC_IMX_HSIC_SUSPEND_EVENT 3
69 int (*notify_event) (struct ci_hdrc *ci, unsigned event);
70 struct regulator *reg_vbus;
71 struct usb_otg_caps ci_otg_caps;
73 /* interrupt threshold setting */
79 /* VBUS and ID signal state tracking, using extcon framework */
80 struct ci_hdrc_cable vbus_extcon;
81 struct ci_hdrc_cable id_extcon;
82 u32 phy_clkgate_delay_us;
86 struct pinctrl_state *pins_default;
87 struct pinctrl_state *pins_host;
88 struct pinctrl_state *pins_device;
91 /* Default offset of capability registers */
92 #define DEF_CAPOFFSET 0x100
94 /* Add ci hdrc device */
95 struct platform_device *ci_hdrc_add_device(struct device *dev,
96 struct resource *res, int nres,
97 struct ci_hdrc_platform_data *platdata);
98 /* Remove ci hdrc device */
99 void ci_hdrc_remove_device(struct platform_device *pdev);