Commit | Line | Data |
---|---|---|
0316ca63 LP |
1 | /* |
2 | * Driver for the NXP ISP1761 device controller | |
3 | * | |
4 | * Copyright 2014 Ideas on Board Oy | |
5 | * | |
6 | * Contacts: | |
7 | * Laurent Pinchart <laurent.pinchart@ideasonboard.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * version 2 as published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #ifndef _ISP1760_UDC_H_ | |
15 | #define _ISP1760_UDC_H_ | |
16 | ||
17 | #include <linux/ioport.h> | |
18 | #include <linux/list.h> | |
19 | #include <linux/spinlock.h> | |
20 | #include <linux/timer.h> | |
21 | #include <linux/usb/gadget.h> | |
22 | ||
23 | struct isp1760_device; | |
24 | struct isp1760_udc; | |
25 | ||
26 | enum isp1760_ctrl_state { | |
27 | ISP1760_CTRL_SETUP, /* Waiting for a SETUP transaction */ | |
28 | ISP1760_CTRL_DATA_IN, /* Setup received, data IN stage */ | |
29 | ISP1760_CTRL_DATA_OUT, /* Setup received, data OUT stage */ | |
30 | ISP1760_CTRL_STATUS, /* 0-length request in status stage */ | |
31 | }; | |
32 | ||
33 | struct isp1760_ep { | |
34 | struct isp1760_udc *udc; | |
35 | struct usb_ep ep; | |
36 | ||
37 | struct list_head queue; | |
38 | ||
39 | unsigned int addr; | |
40 | unsigned int maxpacket; | |
41 | char name[7]; | |
42 | ||
43 | const struct usb_endpoint_descriptor *desc; | |
44 | ||
45 | bool rx_pending; | |
46 | bool halted; | |
47 | bool wedged; | |
48 | }; | |
49 | ||
50 | /** | |
51 | * struct isp1760_udc - UDC state information | |
52 | * irq: IRQ number | |
53 | * irqname: IRQ name (as passed to request_irq) | |
54 | * regs: Base address of the UDC registers | |
55 | * driver: Gadget driver | |
56 | * gadget: Gadget device | |
57 | * lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register | |
58 | * ep: Array of endpoints | |
59 | * ep0_state: Control request state for endpoint 0 | |
60 | * ep0_dir: Direction of the current control request | |
61 | * ep0_length: Length of the current control request | |
62 | * connected: Tracks gadget driver bus connection state | |
63 | */ | |
64 | struct isp1760_udc { | |
100832ab | 65 | #ifdef CONFIG_USB_ISP1761_UDC |
0316ca63 LP |
66 | struct isp1760_device *isp; |
67 | ||
68 | int irq; | |
69 | char *irqname; | |
70 | void __iomem *regs; | |
71 | ||
72 | struct usb_gadget_driver *driver; | |
73 | struct usb_gadget gadget; | |
74 | ||
75 | spinlock_t lock; | |
76 | struct timer_list vbus_timer; | |
77 | ||
78 | struct isp1760_ep ep[15]; | |
79 | ||
80 | enum isp1760_ctrl_state ep0_state; | |
81 | u8 ep0_dir; | |
82 | u16 ep0_length; | |
83 | ||
84 | bool connected; | |
85 | ||
86 | unsigned int devstatus; | |
87 | #endif | |
88 | }; | |
89 | ||
100832ab | 90 | #ifdef CONFIG_USB_ISP1761_UDC |
0316ca63 LP |
91 | int isp1760_udc_register(struct isp1760_device *isp, int irq, |
92 | unsigned long irqflags); | |
93 | void isp1760_udc_unregister(struct isp1760_device *isp); | |
94 | #else | |
95 | static inline int isp1760_udc_register(struct isp1760_device *isp, int irq, | |
96 | unsigned long irqflags) | |
97 | { | |
98 | return 0; | |
99 | } | |
100 | ||
101 | static inline void isp1760_udc_unregister(struct isp1760_device *isp) | |
102 | { | |
103 | } | |
104 | #endif | |
105 | ||
106 | #endif |