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1.1 root 1: /*
2: * QEMU USB API
3: *
4: * Copyright (c) 2005 Fabrice Bellard
5: *
6: * Permission is hereby granted, free of charge, to any person obtaining a copy
7: * of this software and associated documentation files (the "Software"), to deal
8: * in the Software without restriction, including without limitation the rights
9: * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10: * copies of the Software, and to permit persons to whom the Software is
11: * furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included in
14: * all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21: * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22: * THE SOFTWARE.
23: */
24: #define USB_TOKEN_SETUP 0x2d
25: #define USB_TOKEN_IN 0x69 /* device -> host */
26: #define USB_TOKEN_OUT 0xe1 /* host -> device */
27:
28: /* specific usb messages, also sent in the 'pid' parameter */
29: #define USB_MSG_ATTACH 0x100
30: #define USB_MSG_DETACH 0x101
31: #define USB_MSG_RESET 0x102
32:
33: #define USB_RET_NODEV (-1)
34: #define USB_RET_NAK (-2)
35: #define USB_RET_STALL (-3)
36: #define USB_RET_BABBLE (-4)
1.1.1.4 ! root 37: #define USB_RET_ASYNC (-5)
1.1 root 38:
39: #define USB_SPEED_LOW 0
40: #define USB_SPEED_FULL 1
41: #define USB_SPEED_HIGH 2
42:
43: #define USB_STATE_NOTATTACHED 0
44: #define USB_STATE_ATTACHED 1
45: //#define USB_STATE_POWERED 2
46: #define USB_STATE_DEFAULT 3
47: //#define USB_STATE_ADDRESS 4
48: //#define USB_STATE_CONFIGURED 5
49: #define USB_STATE_SUSPENDED 6
50:
51: #define USB_CLASS_AUDIO 1
52: #define USB_CLASS_COMM 2
53: #define USB_CLASS_HID 3
54: #define USB_CLASS_PHYSICAL 5
55: #define USB_CLASS_STILL_IMAGE 6
56: #define USB_CLASS_PRINTER 7
57: #define USB_CLASS_MASS_STORAGE 8
58: #define USB_CLASS_HUB 9
59: #define USB_CLASS_CDC_DATA 0x0a
60: #define USB_CLASS_CSCID 0x0b
61: #define USB_CLASS_CONTENT_SEC 0x0d
62: #define USB_CLASS_APP_SPEC 0xfe
63: #define USB_CLASS_VENDOR_SPEC 0xff
64:
65: #define USB_DIR_OUT 0
66: #define USB_DIR_IN 0x80
67:
68: #define USB_TYPE_MASK (0x03 << 5)
69: #define USB_TYPE_STANDARD (0x00 << 5)
70: #define USB_TYPE_CLASS (0x01 << 5)
71: #define USB_TYPE_VENDOR (0x02 << 5)
72: #define USB_TYPE_RESERVED (0x03 << 5)
73:
74: #define USB_RECIP_MASK 0x1f
75: #define USB_RECIP_DEVICE 0x00
76: #define USB_RECIP_INTERFACE 0x01
77: #define USB_RECIP_ENDPOINT 0x02
78: #define USB_RECIP_OTHER 0x03
79:
80: #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
81: #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
82: #define InterfaceRequest \
83: ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
84: #define InterfaceOutRequest \
85: ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
86: #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
87: #define EndpointOutRequest \
88: ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
89:
90: #define USB_REQ_GET_STATUS 0x00
91: #define USB_REQ_CLEAR_FEATURE 0x01
92: #define USB_REQ_SET_FEATURE 0x03
93: #define USB_REQ_SET_ADDRESS 0x05
94: #define USB_REQ_GET_DESCRIPTOR 0x06
95: #define USB_REQ_SET_DESCRIPTOR 0x07
96: #define USB_REQ_GET_CONFIGURATION 0x08
97: #define USB_REQ_SET_CONFIGURATION 0x09
98: #define USB_REQ_GET_INTERFACE 0x0A
99: #define USB_REQ_SET_INTERFACE 0x0B
100: #define USB_REQ_SYNCH_FRAME 0x0C
101:
102: #define USB_DEVICE_SELF_POWERED 0
103: #define USB_DEVICE_REMOTE_WAKEUP 1
104:
105: #define USB_DT_DEVICE 0x01
106: #define USB_DT_CONFIG 0x02
107: #define USB_DT_STRING 0x03
108: #define USB_DT_INTERFACE 0x04
109: #define USB_DT_ENDPOINT 0x05
110:
111: typedef struct USBPort USBPort;
112: typedef struct USBDevice USBDevice;
1.1.1.4 ! root 113: typedef struct USBPacket USBPacket;
1.1 root 114:
115: /* definition of a USB device */
116: struct USBDevice {
117: void *opaque;
1.1.1.4 ! root 118: int (*handle_packet)(USBDevice *dev, USBPacket *p);
1.1.1.3 root 119: void (*handle_destroy)(USBDevice *dev);
120:
1.1 root 121: int speed;
122:
123: /* The following fields are used by the generic USB device
124: layer. They are here just to avoid creating a new structure for
125: them. */
126: void (*handle_reset)(USBDevice *dev);
127: int (*handle_control)(USBDevice *dev, int request, int value,
128: int index, int length, uint8_t *data);
1.1.1.4 ! root 129: int (*handle_data)(USBDevice *dev, USBPacket *p);
1.1 root 130: uint8_t addr;
1.1.1.3 root 131: char devname[32];
1.1 root 132:
133: int state;
134: uint8_t setup_buf[8];
135: uint8_t data_buf[1024];
136: int remote_wakeup;
137: int setup_state;
138: int setup_len;
139: int setup_index;
140: };
141:
1.1.1.3 root 142: typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev);
143:
1.1 root 144: /* USB port on which a device can be connected */
145: struct USBPort {
146: USBDevice *dev;
1.1.1.3 root 147: usb_attachfn attach;
1.1 root 148: void *opaque;
149: int index; /* internal port index, may be used with the opaque */
1.1.1.3 root 150: struct USBPort *next; /* Used internally by qemu. */
1.1 root 151: };
152:
1.1.1.4 ! root 153: typedef void USBCallback(USBPacket * packet, void *opaque);
! 154:
! 155: /* Structure used to hold information about an active USB packet. */
! 156: struct USBPacket {
! 157: /* Data fields for use by the driver. */
! 158: int pid;
! 159: uint8_t devaddr;
! 160: uint8_t devep;
! 161: uint8_t *data;
! 162: int len;
! 163: /* Internal use by the USB layer. */
! 164: USBCallback *complete_cb;
! 165: void *complete_opaque;
! 166: USBCallback *cancel_cb;
! 167: void * *cancel_opaque;
! 168: };
! 169:
! 170: /* Defer completion of a USB packet. The hadle_packet routine should then
! 171: return USB_RET_ASYNC. Packets that complete immediately (before
! 172: handle_packet returns) should not call this method. */
! 173: static inline void usb_defer_packet(USBPacket *p, USBCallback *cancel,
! 174: void * opaque)
! 175: {
! 176: p->cancel_cb = cancel;
! 177: p->cancel_opaque = opaque;
! 178: }
! 179:
! 180: /* Notify the controller that an async packet is complete. This should only
! 181: be called for packets previously deferred with usb_defer_packet, and
! 182: should never be called from within handle_packet. */
! 183: static inline void usb_packet_complete(USBPacket *p)
! 184: {
! 185: p->complete_cb(p, p->complete_opaque);
! 186: }
! 187:
! 188: /* Cancel an active packet. The packed must have been deferred with
! 189: usb_defer_packet, and not yet completed. */
! 190: static inline void usb_cancel_packet(USBPacket * p)
! 191: {
! 192: p->cancel_cb(p, p->cancel_opaque);
! 193: }
! 194:
1.1 root 195: void usb_attach(USBPort *port, USBDevice *dev);
1.1.1.4 ! root 196: int usb_generic_handle_packet(USBDevice *s, USBPacket *p);
1.1 root 197: int set_usb_string(uint8_t *buf, const char *str);
1.1.1.4 ! root 198: void usb_send_msg(USBDevice *dev, int msg);
! 199:
! 200: void usb_packet_complete(USBPacket *p);
1.1 root 201:
202: /* usb hub */
1.1.1.3 root 203: USBDevice *usb_hub_init(int nb_ports);
1.1 root 204:
205: /* usb-uhci.c */
1.1.1.3 root 206: void usb_uhci_init(PCIBus *bus, int devfn);
207:
208: /* usb-ohci.c */
209: void usb_ohci_init(struct PCIBus *bus, int num_ports, int devfn);
1.1 root 210:
211: /* usb-linux.c */
212: USBDevice *usb_host_device_open(const char *devname);
213: void usb_host_info(void);
214:
215: /* usb-hid.c */
216: USBDevice *usb_mouse_init(void);
1.1.1.2 root 217: USBDevice *usb_tablet_init(void);
1.1.1.3 root 218:
219: /* usb-msd.c */
220: USBDevice *usb_msd_init(const char *filename);
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