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