1 /* $FreeBSD$ */
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_config_descriptor;
44 struct usb_endpoint_descriptor;
45
46 /* typedefs */
47
48 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);
49 typedef void (usb_bus_mem_cb_t)(struct usb_bus *bus, usb_bus_mem_sub_cb_t *scb);
50
51 /*
52 * The following structure is used to define all the USB BUS
53 * callbacks.
54 */
55 struct usb_bus_methods {
56
57 /* USB Device and Host mode - Mandatory */
58
59 usb_handle_req_t *roothub_exec;
60
61 void (*endpoint_init) (struct usb_device *,
62 struct usb_endpoint_descriptor *, struct usb_endpoint *);
63 void (*xfer_setup) (struct usb_setup_params *);
64 void (*xfer_unsetup) (struct usb_xfer *);
65 void (*get_dma_delay) (struct usb_bus *, uint32_t *);
66 void (*device_suspend) (struct usb_device *);
67 void (*device_resume) (struct usb_device *);
68 void (*set_hw_power) (struct usb_bus *);
69
70 /*
71 * The following flag is set if one or more control transfers are
72 * active:
73 */
74 #define USB_HW_POWER_CONTROL 0x01
75 /*
76 * The following flag is set if one or more bulk transfers are
77 * active:
78 */
79 #define USB_HW_POWER_BULK 0x02
80 /*
81 * The following flag is set if one or more interrupt transfers are
82 * active:
83 */
84 #define USB_HW_POWER_INTERRUPT 0x04
85 /*
86 * The following flag is set if one or more isochronous transfers
87 * are active:
88 */
89 #define USB_HW_POWER_ISOC 0x08
90 /*
91 * The following flag is set if one or more non-root-HUB devices
92 * are present on the given USB bus:
93 */
94 #define USB_HW_POWER_NON_ROOT_HUB 0x10
95
96 /* USB Device mode only - Mandatory */
97
98 void (*get_hw_ep_profile) (struct usb_device *udev, const struct usb_hw_ep_profile **ppf, uint8_t ep_addr);
99 void (*set_stall) (struct usb_device *udev, struct usb_xfer *xfer, struct usb_endpoint *ep, uint8_t *did_stall);
100 void (*clear_stall) (struct usb_device *udev, struct usb_endpoint *ep);
101
102 /* Optional transfer polling support */
103
104 void (*xfer_poll) (struct usb_bus *);
105 };
106
107 /*
108 * The following structure is used to define all the USB pipe
109 * callbacks.
110 */
111 struct usb_pipe_methods {
112
113 /* Mandatory USB Device and Host mode callbacks: */
114
115 void (*open)(struct usb_xfer *);
116 void (*close)(struct usb_xfer *);
117
118 void (*enter)(struct usb_xfer *);
119 void (*start)(struct usb_xfer *);
120
121 /* Optional */
122
123 void *info;
124 };
125
126 /*
127 * The following structure keeps information about what a hardware USB
128 * endpoint supports.
129 */
130 struct usb_hw_ep_profile {
131 uint16_t max_in_frame_size; /* IN-token direction */
132 uint16_t max_out_frame_size; /* OUT-token direction */
133 uint8_t is_simplex:1;
134 uint8_t support_multi_buffer:1;
135 uint8_t support_bulk:1;
136 uint8_t support_control:1;
137 uint8_t support_interrupt:1;
138 uint8_t support_isochronous:1;
139 uint8_t support_in:1; /* IN-token is supported */
140 uint8_t support_out:1; /* OUT-token is supported */
141 };
142
143 /*
144 * The following structure is used when trying to allocate hardware
145 * endpoints for an USB configuration in USB device side mode.
146 */
147 struct usb_hw_ep_scratch_sub {
148 const struct usb_hw_ep_profile *pf;
149 uint16_t max_frame_size;
150 uint8_t hw_endpoint_out;
151 uint8_t hw_endpoint_in;
152 uint8_t needs_ep_type;
153 uint8_t needs_in:1;
154 uint8_t needs_out:1;
155 };
156
157 /*
158 * The following structure is used when trying to allocate hardware
159 * endpoints for an USB configuration in USB device side mode.
160 */
161 struct usb_hw_ep_scratch {
162 struct usb_hw_ep_scratch_sub ep[USB_EP_MAX];
163 struct usb_hw_ep_scratch_sub *ep_max;
164 struct usb_config_descriptor *cd;
165 struct usb_device *udev;
166 struct usb_bus_methods *methods;
167 uint8_t bmOutAlloc[(USB_EP_MAX + 15) / 16];
168 uint8_t bmInAlloc[(USB_EP_MAX + 15) / 16];
169 };
170
171 /*
172 * The following structure is used when generating USB descriptors
173 * from USB templates.
174 */
175 struct usb_temp_setup {
176 void *buf;
177 usb_size_t size;
178 enum usb_dev_speed usb_speed;
179 uint8_t self_powered;
180 uint8_t bNumEndpoints;
181 uint8_t bInterfaceNumber;
182 uint8_t bAlternateSetting;
183 uint8_t bConfigurationValue;
184 usb_error_t err;
185 };
186
187 /* prototypes */
188
189 void usb_bus_mem_flush_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb);
190 uint8_t usb_bus_mem_alloc_all(struct usb_bus *bus, bus_dma_tag_t dmat, usb_bus_mem_cb_t *cb);
191 void usb_bus_mem_free_all(struct usb_bus *bus, usb_bus_mem_cb_t *cb);
192 uint16_t usb_isoc_time_expand(struct usb_bus *bus, uint16_t isoc_time_curr);
193 uint16_t usbd_fs_isoc_schedule_isoc_time_expand(struct usb_device *udev, struct usb_fs_isoc_schedule **pp_start, struct usb_fs_isoc_schedule **pp_end, uint16_t isoc_time);
194 uint8_t usbd_fs_isoc_schedule_alloc(struct usb_fs_isoc_schedule *fss, uint8_t *pstart, uint16_t len);
195
196 #endif /* _USB_CONTROLLER_H_ */
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