1 /* $FreeBSD: releng/11.2/sys/dev/usb/usb_controller.h 331722 2018-03-29 02:50:57Z eadler $ */
2 /*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #ifndef _USB_CONTROLLER_H_
28 #define _USB_CONTROLLER_H_
29
30 /* defines */
31
32 #define USB_BUS_DMA_TAG_MAX 8
33
34 /* structure prototypes */
35
36 struct usb_bus;
37 struct usb_page;
38 struct usb_endpoint;
39 struct usb_page_cache;
40 struct usb_setup_params;
41 struct usb_hw_ep_profile;
42 struct usb_fs_isoc_schedule;
43 struct usb_endpoint_descriptor;
44
45 /* typedefs */
46
47 typedef void (usb_bus_mem_sub_cb_t)(struct usb_bus *bus, struct usb_page_cache *pc, struct usb_page *pg, usb_size_t size, usb_size_t align);
48 typedef void (usb_bus_mem_cb_t)(struct usb_bus *bus, usb_bus_mem_sub_cb_t *scb);
49
50 /*
51 * The following structure is used to define all the USB BUS
52 * callbacks.
53 */
54 struct usb_bus_methods {
55
56 /* USB Device and Host mode - Mandatory */
57
58 usb_handle_req_t *roothub_exec;
59
60 void (*endpoint_init) (struct usb_device *,
61 struct usb_endpoint_descriptor *, struct usb_endpoint *);
62 void (*xfer_setup) (struct usb_setup_params *);
63 void (*xfer_unsetup) (struct usb_xfer *);
64 void (*get_dma_delay) (struct usb_device *, uint32_t *);
65 void (*device_suspend) (struct usb_device *);
66 void (*device_resume) (struct usb_device *);
67 void (*set_hw_power) (struct usb_bus *);
68 void (*set_hw_power_sleep) (struct usb_bus *, uint32_t);
69 /*
70 * The following flag is set if one or more control transfers are
71 * active:
72 */
73 #define USB_HW_POWER_CONTROL 0x01
74 /*
75 * The following flag is set if one or more bulk transfers are
76 * active:
77 */
78 #define USB_HW_POWER_BULK 0x02
79 /*
80 * The following flag is set if one or more interrupt transfers are
81 * active:
82 */
83 #define USB_HW_POWER_INTERRUPT 0x04
84 /*
85 * The following flag is set if one or more isochronous transfers
86 * are active:
87 */
88 #define USB_HW_POWER_ISOC 0x08
89 /*
90 * The following flag is set if one or more non-root-HUB devices
91 * are present on the given USB bus:
92 */
93 #define USB_HW_POWER_NON_ROOT_HUB 0x10
94 /*
95 * The following flag is set if we are suspending
96 */
97 #define USB_HW_POWER_SUSPEND 0x20
98 /*
99 * The following flag is set if we are resuming
100 */
101 #define USB_HW_POWER_RESUME 0x40
102 /*
103 * The following flag is set if we are shutting down
104 */
105 #define USB_HW_POWER_SHUTDOWN 0x60
106
107 /* USB Device mode only - Mandatory */
108
109 void (*get_hw_ep_profile) (struct usb_device *udev, const struct usb_hw_ep_profile **ppf, uint8_t ep_addr);
110 void (*xfer_stall) (struct usb_xfer *xfer);
111 void (*set_stall) (struct usb_device *udev, struct usb_endpoint *ep, uint8_t *did_stall);
112
113 /* USB Device mode mandatory. USB Host mode optional. */
114
115 void (*clear_stall) (struct usb_device *udev, struct usb_endpoint *ep);
116
117 /* Optional transfer polling support */
118
119 void (*xfer_poll) (struct usb_bus *);
120
121 /* Optional fixed power mode support */
122
123 void (*get_power_mode) (struct usb_device *udev, int8_t *pmode);
124
125 /* Optional endpoint uninit */
126
127 void (*endpoint_uninit) (struct usb_device *, struct usb_endpoint *);
128
129 /* Optional device init */
130
131 usb_error_t (*device_init) (struct usb_device *);
132
133 /* Optional device uninit */
134
135 void (*device_uninit) (struct usb_device *);
136
137 /* Optional for device and host mode */
138
139 void (*start_dma_delay) (struct usb_xfer *);
140
141 void (*device_state_change) (struct usb_device *);
142
143 /* Optional for host mode */
144
145 usb_error_t (*set_address) (struct usb_device *, struct mtx *, uint16_t);
146
147 /* Optional for device and host mode */
148
149 usb_error_t (*set_endpoint_mode) (struct usb_device *, struct usb_endpoint *, uint8_t);
150 };
151
152 /*
153 * The following structure is used to define all the USB pipe
154 * callbacks.
155 */
156 struct usb_pipe_methods {
157
158 /* Mandatory USB Device and Host mode callbacks: */
159
160 void (*open)(struct usb_xfer *);
161 void (*close)(struct usb_xfer *);
162
163 void (*enter)(struct usb_xfer *);
164 void (*start)(struct usb_xfer *);
165
166 /* Optional */
167
168 void *info;
169 };
170
171 /*
172 * The following structure keeps information about what a hardware USB
173 * endpoint supports.
174 */
175 struct usb_hw_ep_profile {
176 uint16_t max_in_frame_size; /* IN-token direction */
177 uint16_t max_out_frame_size; /* OUT-token direction */
178 uint8_t is_simplex:1;
179 uint8_t support_multi_buffer:1;
180 uint8_t support_bulk:1;
181 uint8_t support_control:1;
182 uint8_t support_interrupt:1;
183 uint8_t support_isochronous:1;
184 uint8_t support_in:1; /* IN-token is supported */
185 uint8_t support_out:1; /* OUT-token is supported */
186 };
187
188 /* prototypes */
189
190 void usb_bus_mem_flush_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb);
191 uint8_t usb_bus_mem_alloc_all(struct usb_bus *bus, bus_dma_tag_t dmat, usb_bus_mem_cb_t *cb);
192 void usb_bus_mem_free_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb);
193 uint16_t usb_isoc_time_expand(struct usb_bus *bus, uint16_t isoc_time_curr);
194 void usb_bus_reset_async_locked(struct usb_bus *bus);
195 #if USB_HAVE_TT_SUPPORT
196 uint8_t usbd_fs_isoc_schedule_alloc_slot(struct usb_xfer *isoc_xfer, uint16_t isoc_time);
197 #endif
198
199 #endif /* _USB_CONTROLLER_H_ */
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