root / hw / usb-hub.c @ 1ffc346f
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1 | 72899afc | bellard | /*
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2 | 72899afc | bellard | * QEMU USB HUB emulation
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3 | 72899afc | bellard | *
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4 | 72899afc | bellard | * Copyright (c) 2005 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 72899afc | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 72899afc | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | 72899afc | bellard | * in the Software without restriction, including without limitation the rights
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9 | 72899afc | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 72899afc | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | 72899afc | bellard | * furnished to do so, subject to the following conditions:
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12 | 72899afc | bellard | *
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13 | 72899afc | bellard | * The above copyright notice and this permission notice shall be included in
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14 | 72899afc | bellard | * all copies or substantial portions of the Software.
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15 | 72899afc | bellard | *
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16 | 72899afc | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 72899afc | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 72899afc | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 72899afc | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 72899afc | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 72899afc | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 72899afc | bellard | * THE SOFTWARE.
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23 | 72899afc | bellard | */
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24 | 87ecb68b | pbrook | #include "qemu-common.h" |
25 | 87ecb68b | pbrook | #include "usb.h" |
26 | 72899afc | bellard | |
27 | 72899afc | bellard | //#define DEBUG
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28 | 72899afc | bellard | |
29 | 72899afc | bellard | #define MAX_PORTS 8 |
30 | 72899afc | bellard | |
31 | 72899afc | bellard | typedef struct USBHubPort { |
32 | 72899afc | bellard | USBPort port; |
33 | 72899afc | bellard | uint16_t wPortStatus; |
34 | 72899afc | bellard | uint16_t wPortChange; |
35 | 72899afc | bellard | } USBHubPort; |
36 | 72899afc | bellard | |
37 | 72899afc | bellard | typedef struct USBHubState { |
38 | 72899afc | bellard | USBDevice dev; |
39 | 72899afc | bellard | int nb_ports;
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40 | 72899afc | bellard | USBHubPort ports[MAX_PORTS]; |
41 | 72899afc | bellard | } USBHubState; |
42 | 72899afc | bellard | |
43 | 72899afc | bellard | #define ClearHubFeature (0x2000 | USB_REQ_CLEAR_FEATURE) |
44 | 72899afc | bellard | #define ClearPortFeature (0x2300 | USB_REQ_CLEAR_FEATURE) |
45 | 72899afc | bellard | #define GetHubDescriptor (0xa000 | USB_REQ_GET_DESCRIPTOR) |
46 | 72899afc | bellard | #define GetHubStatus (0xa000 | USB_REQ_GET_STATUS) |
47 | 72899afc | bellard | #define GetPortStatus (0xa300 | USB_REQ_GET_STATUS) |
48 | 72899afc | bellard | #define SetHubFeature (0x2000 | USB_REQ_SET_FEATURE) |
49 | 72899afc | bellard | #define SetPortFeature (0x2300 | USB_REQ_SET_FEATURE) |
50 | 72899afc | bellard | |
51 | 72899afc | bellard | #define PORT_STAT_CONNECTION 0x0001 |
52 | 72899afc | bellard | #define PORT_STAT_ENABLE 0x0002 |
53 | 72899afc | bellard | #define PORT_STAT_SUSPEND 0x0004 |
54 | 72899afc | bellard | #define PORT_STAT_OVERCURRENT 0x0008 |
55 | 72899afc | bellard | #define PORT_STAT_RESET 0x0010 |
56 | 72899afc | bellard | #define PORT_STAT_POWER 0x0100 |
57 | 72899afc | bellard | #define PORT_STAT_LOW_SPEED 0x0200 |
58 | 72899afc | bellard | #define PORT_STAT_HIGH_SPEED 0x0400 |
59 | 72899afc | bellard | #define PORT_STAT_TEST 0x0800 |
60 | 72899afc | bellard | #define PORT_STAT_INDICATOR 0x1000 |
61 | 72899afc | bellard | |
62 | 72899afc | bellard | #define PORT_STAT_C_CONNECTION 0x0001 |
63 | 72899afc | bellard | #define PORT_STAT_C_ENABLE 0x0002 |
64 | 72899afc | bellard | #define PORT_STAT_C_SUSPEND 0x0004 |
65 | 72899afc | bellard | #define PORT_STAT_C_OVERCURRENT 0x0008 |
66 | 72899afc | bellard | #define PORT_STAT_C_RESET 0x0010 |
67 | 72899afc | bellard | |
68 | 72899afc | bellard | #define PORT_CONNECTION 0 |
69 | 72899afc | bellard | #define PORT_ENABLE 1 |
70 | 72899afc | bellard | #define PORT_SUSPEND 2 |
71 | 72899afc | bellard | #define PORT_OVERCURRENT 3 |
72 | 72899afc | bellard | #define PORT_RESET 4 |
73 | 72899afc | bellard | #define PORT_POWER 8 |
74 | 72899afc | bellard | #define PORT_LOWSPEED 9 |
75 | 72899afc | bellard | #define PORT_HIGHSPEED 10 |
76 | 72899afc | bellard | #define PORT_C_CONNECTION 16 |
77 | 72899afc | bellard | #define PORT_C_ENABLE 17 |
78 | 72899afc | bellard | #define PORT_C_SUSPEND 18 |
79 | 72899afc | bellard | #define PORT_C_OVERCURRENT 19 |
80 | 72899afc | bellard | #define PORT_C_RESET 20 |
81 | 72899afc | bellard | #define PORT_TEST 21 |
82 | 72899afc | bellard | #define PORT_INDICATOR 22 |
83 | 72899afc | bellard | |
84 | 72899afc | bellard | /* same as Linux kernel root hubs */
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85 | 72899afc | bellard | |
86 | 72899afc | bellard | static const uint8_t qemu_hub_dev_descriptor[] = { |
87 | 72899afc | bellard | 0x12, /* u8 bLength; */ |
88 | 72899afc | bellard | 0x01, /* u8 bDescriptorType; Device */ |
89 | 72899afc | bellard | 0x10, 0x01, /* u16 bcdUSB; v1.1 */ |
90 | 72899afc | bellard | |
91 | 72899afc | bellard | 0x09, /* u8 bDeviceClass; HUB_CLASSCODE */ |
92 | 72899afc | bellard | 0x00, /* u8 bDeviceSubClass; */ |
93 | 72899afc | bellard | 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ |
94 | 72899afc | bellard | 0x08, /* u8 bMaxPacketSize0; 8 Bytes */ |
95 | 72899afc | bellard | |
96 | 72899afc | bellard | 0x00, 0x00, /* u16 idVendor; */ |
97 | 72899afc | bellard | 0x00, 0x00, /* u16 idProduct; */ |
98 | 72899afc | bellard | 0x01, 0x01, /* u16 bcdDevice */ |
99 | 72899afc | bellard | |
100 | 72899afc | bellard | 0x03, /* u8 iManufacturer; */ |
101 | 72899afc | bellard | 0x02, /* u8 iProduct; */ |
102 | 72899afc | bellard | 0x01, /* u8 iSerialNumber; */ |
103 | 72899afc | bellard | 0x01 /* u8 bNumConfigurations; */ |
104 | 72899afc | bellard | }; |
105 | 72899afc | bellard | |
106 | 72899afc | bellard | /* XXX: patch interrupt size */
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107 | 72899afc | bellard | static const uint8_t qemu_hub_config_descriptor[] = { |
108 | 72899afc | bellard | |
109 | 72899afc | bellard | /* one configuration */
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110 | 72899afc | bellard | 0x09, /* u8 bLength; */ |
111 | 72899afc | bellard | 0x02, /* u8 bDescriptorType; Configuration */ |
112 | 72899afc | bellard | 0x19, 0x00, /* u16 wTotalLength; */ |
113 | 72899afc | bellard | 0x01, /* u8 bNumInterfaces; (1) */ |
114 | 72899afc | bellard | 0x01, /* u8 bConfigurationValue; */ |
115 | 72899afc | bellard | 0x00, /* u8 iConfiguration; */ |
116 | 5fafdf24 | ths | 0xc0, /* u8 bmAttributes; |
117 | 72899afc | bellard | Bit 7: must be set,
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118 | 72899afc | bellard | 6: Self-powered,
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119 | 72899afc | bellard | 5: Remote wakeup,
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120 | 72899afc | bellard | 4..0: resvd */
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121 | 72899afc | bellard | 0x00, /* u8 MaxPower; */ |
122 | 3b46e624 | ths | |
123 | 72899afc | bellard | /* USB 1.1:
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124 | 72899afc | bellard | * USB 2.0, single TT organization (mandatory):
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125 | 72899afc | bellard | * one interface, protocol 0
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126 | 72899afc | bellard | *
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127 | 72899afc | bellard | * USB 2.0, multiple TT organization (optional):
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128 | 72899afc | bellard | * two interfaces, protocols 1 (like single TT)
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129 | 72899afc | bellard | * and 2 (multiple TT mode) ... config is
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130 | 72899afc | bellard | * sometimes settable
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131 | 72899afc | bellard | * NOT IMPLEMENTED
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132 | 72899afc | bellard | */
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133 | 72899afc | bellard | |
134 | 72899afc | bellard | /* one interface */
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135 | 72899afc | bellard | 0x09, /* u8 if_bLength; */ |
136 | 72899afc | bellard | 0x04, /* u8 if_bDescriptorType; Interface */ |
137 | 72899afc | bellard | 0x00, /* u8 if_bInterfaceNumber; */ |
138 | 72899afc | bellard | 0x00, /* u8 if_bAlternateSetting; */ |
139 | 72899afc | bellard | 0x01, /* u8 if_bNumEndpoints; */ |
140 | 72899afc | bellard | 0x09, /* u8 if_bInterfaceClass; HUB_CLASSCODE */ |
141 | 72899afc | bellard | 0x00, /* u8 if_bInterfaceSubClass; */ |
142 | 72899afc | bellard | 0x00, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ |
143 | 72899afc | bellard | 0x00, /* u8 if_iInterface; */ |
144 | 3b46e624 | ths | |
145 | 72899afc | bellard | /* one endpoint (status change endpoint) */
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146 | 72899afc | bellard | 0x07, /* u8 ep_bLength; */ |
147 | 72899afc | bellard | 0x05, /* u8 ep_bDescriptorType; Endpoint */ |
148 | 72899afc | bellard | 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ |
149 | 72899afc | bellard | 0x03, /* u8 ep_bmAttributes; Interrupt */ |
150 | 72899afc | bellard | 0x02, 0x00, /* u16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */ |
151 | 72899afc | bellard | 0xff /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ |
152 | 72899afc | bellard | }; |
153 | 72899afc | bellard | |
154 | 72899afc | bellard | static const uint8_t qemu_hub_hub_descriptor[] = |
155 | 72899afc | bellard | { |
156 | 67f36560 | bellard | 0x00, /* u8 bLength; patched in later */ |
157 | 72899afc | bellard | 0x29, /* u8 bDescriptorType; Hub-descriptor */ |
158 | 72899afc | bellard | 0x00, /* u8 bNbrPorts; (patched later) */ |
159 | 72899afc | bellard | 0x0a, /* u16 wHubCharacteristics; */ |
160 | 72899afc | bellard | 0x00, /* (per-port OC, no power switching) */ |
161 | 72899afc | bellard | 0x01, /* u8 bPwrOn2pwrGood; 2ms */ |
162 | 985d1742 | bellard | 0x00 /* u8 bHubContrCurrent; 0 mA */ |
163 | 985d1742 | bellard | |
164 | 985d1742 | bellard | /* DeviceRemovable and PortPwrCtrlMask patched in later */
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165 | 72899afc | bellard | }; |
166 | 72899afc | bellard | |
167 | 72899afc | bellard | static void usb_hub_attach(USBPort *port1, USBDevice *dev) |
168 | 72899afc | bellard | { |
169 | 72899afc | bellard | USBHubState *s = port1->opaque; |
170 | 72899afc | bellard | USBHubPort *port = &s->ports[port1->index]; |
171 | 3b46e624 | ths | |
172 | 72899afc | bellard | if (dev) {
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173 | 72899afc | bellard | if (port->port.dev)
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174 | 72899afc | bellard | usb_attach(port1, NULL);
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175 | 3b46e624 | ths | |
176 | 72899afc | bellard | port->wPortStatus |= PORT_STAT_CONNECTION; |
177 | 72899afc | bellard | port->wPortChange |= PORT_STAT_C_CONNECTION; |
178 | 72899afc | bellard | if (dev->speed == USB_SPEED_LOW)
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179 | 72899afc | bellard | port->wPortStatus |= PORT_STAT_LOW_SPEED; |
180 | 72899afc | bellard | else
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181 | 72899afc | bellard | port->wPortStatus &= ~PORT_STAT_LOW_SPEED; |
182 | 72899afc | bellard | port->port.dev = dev; |
183 | 0d92ed30 | pbrook | /* send the attach message */
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184 | 4d611c9a | pbrook | usb_send_msg(dev, USB_MSG_ATTACH); |
185 | 72899afc | bellard | } else {
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186 | 72899afc | bellard | dev = port->port.dev; |
187 | 72899afc | bellard | if (dev) {
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188 | 72899afc | bellard | port->wPortStatus &= ~PORT_STAT_CONNECTION; |
189 | 72899afc | bellard | port->wPortChange |= PORT_STAT_C_CONNECTION; |
190 | 72899afc | bellard | if (port->wPortStatus & PORT_STAT_ENABLE) {
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191 | 72899afc | bellard | port->wPortStatus &= ~PORT_STAT_ENABLE; |
192 | 72899afc | bellard | port->wPortChange |= PORT_STAT_C_ENABLE; |
193 | 72899afc | bellard | } |
194 | 0d92ed30 | pbrook | /* send the detach message */
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195 | 4d611c9a | pbrook | usb_send_msg(dev, USB_MSG_DETACH); |
196 | 72899afc | bellard | port->port.dev = NULL;
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197 | 72899afc | bellard | } |
198 | 72899afc | bellard | } |
199 | 72899afc | bellard | } |
200 | 72899afc | bellard | |
201 | 059809e4 | bellard | static void usb_hub_handle_reset(USBDevice *dev) |
202 | 72899afc | bellard | { |
203 | 72899afc | bellard | /* XXX: do it */
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204 | 72899afc | bellard | } |
205 | 72899afc | bellard | |
206 | 72899afc | bellard | static int usb_hub_handle_control(USBDevice *dev, int request, int value, |
207 | 72899afc | bellard | int index, int length, uint8_t *data) |
208 | 72899afc | bellard | { |
209 | 72899afc | bellard | USBHubState *s = (USBHubState *)dev; |
210 | 72899afc | bellard | int ret;
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211 | 72899afc | bellard | |
212 | 72899afc | bellard | switch(request) {
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213 | 72899afc | bellard | case DeviceRequest | USB_REQ_GET_STATUS:
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214 | 72899afc | bellard | data[0] = (1 << USB_DEVICE_SELF_POWERED) | |
215 | 72899afc | bellard | (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); |
216 | 72899afc | bellard | data[1] = 0x00; |
217 | 72899afc | bellard | ret = 2;
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218 | 72899afc | bellard | break;
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219 | 72899afc | bellard | case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
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220 | 72899afc | bellard | if (value == USB_DEVICE_REMOTE_WAKEUP) {
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221 | 72899afc | bellard | dev->remote_wakeup = 0;
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222 | 72899afc | bellard | } else {
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223 | 72899afc | bellard | goto fail;
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224 | 72899afc | bellard | } |
225 | 72899afc | bellard | ret = 0;
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226 | 72899afc | bellard | break;
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227 | 985d1742 | bellard | case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
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228 | 985d1742 | bellard | if (value == 0 && index != 0x81) { /* clear ep halt */ |
229 | 985d1742 | bellard | goto fail;
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230 | 985d1742 | bellard | } |
231 | 985d1742 | bellard | ret = 0;
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232 | 985d1742 | bellard | break;
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233 | 72899afc | bellard | case DeviceOutRequest | USB_REQ_SET_FEATURE:
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234 | 72899afc | bellard | if (value == USB_DEVICE_REMOTE_WAKEUP) {
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235 | 72899afc | bellard | dev->remote_wakeup = 1;
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236 | 72899afc | bellard | } else {
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237 | 72899afc | bellard | goto fail;
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238 | 72899afc | bellard | } |
239 | 72899afc | bellard | ret = 0;
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240 | 72899afc | bellard | break;
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241 | 72899afc | bellard | case DeviceOutRequest | USB_REQ_SET_ADDRESS:
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242 | 72899afc | bellard | dev->addr = value; |
243 | 72899afc | bellard | ret = 0;
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244 | 72899afc | bellard | break;
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245 | 72899afc | bellard | case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
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246 | 72899afc | bellard | switch(value >> 8) { |
247 | 72899afc | bellard | case USB_DT_DEVICE:
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248 | 5fafdf24 | ths | memcpy(data, qemu_hub_dev_descriptor, |
249 | 72899afc | bellard | sizeof(qemu_hub_dev_descriptor));
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250 | 72899afc | bellard | ret = sizeof(qemu_hub_dev_descriptor);
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251 | 72899afc | bellard | break;
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252 | 72899afc | bellard | case USB_DT_CONFIG:
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253 | 5fafdf24 | ths | memcpy(data, qemu_hub_config_descriptor, |
254 | 72899afc | bellard | sizeof(qemu_hub_config_descriptor));
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255 | 985d1742 | bellard | |
256 | 985d1742 | bellard | /* status change endpoint size based on number
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257 | 985d1742 | bellard | * of ports */
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258 | 985d1742 | bellard | data[22] = (s->nb_ports + 1 + 7) / 8; |
259 | 985d1742 | bellard | |
260 | 72899afc | bellard | ret = sizeof(qemu_hub_config_descriptor);
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261 | 72899afc | bellard | break;
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262 | 72899afc | bellard | case USB_DT_STRING:
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263 | 72899afc | bellard | switch(value & 0xff) { |
264 | 72899afc | bellard | case 0: |
265 | 72899afc | bellard | /* language ids */
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266 | 72899afc | bellard | data[0] = 4; |
267 | 72899afc | bellard | data[1] = 3; |
268 | 72899afc | bellard | data[2] = 0x09; |
269 | 72899afc | bellard | data[3] = 0x04; |
270 | 72899afc | bellard | ret = 4;
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271 | 72899afc | bellard | break;
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272 | 72899afc | bellard | case 1: |
273 | 72899afc | bellard | /* serial number */
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274 | 72899afc | bellard | ret = set_usb_string(data, "314159");
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275 | 72899afc | bellard | break;
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276 | 72899afc | bellard | case 2: |
277 | 72899afc | bellard | /* product description */
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278 | 72899afc | bellard | ret = set_usb_string(data, "QEMU USB Hub");
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279 | 72899afc | bellard | break;
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280 | 72899afc | bellard | case 3: |
281 | 72899afc | bellard | /* vendor description */
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282 | 72899afc | bellard | ret = set_usb_string(data, "QEMU " QEMU_VERSION);
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283 | 72899afc | bellard | break;
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284 | 72899afc | bellard | default:
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285 | 72899afc | bellard | goto fail;
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286 | 72899afc | bellard | } |
287 | 72899afc | bellard | break;
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288 | 72899afc | bellard | default:
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289 | 72899afc | bellard | goto fail;
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290 | 72899afc | bellard | } |
291 | 72899afc | bellard | break;
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292 | 72899afc | bellard | case DeviceRequest | USB_REQ_GET_CONFIGURATION:
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293 | 72899afc | bellard | data[0] = 1; |
294 | 72899afc | bellard | ret = 1;
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295 | 72899afc | bellard | break;
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296 | 72899afc | bellard | case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
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297 | 72899afc | bellard | ret = 0;
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298 | 72899afc | bellard | break;
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299 | 72899afc | bellard | case DeviceRequest | USB_REQ_GET_INTERFACE:
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300 | 72899afc | bellard | data[0] = 0; |
301 | 72899afc | bellard | ret = 1;
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302 | 72899afc | bellard | break;
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303 | 72899afc | bellard | case DeviceOutRequest | USB_REQ_SET_INTERFACE:
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304 | 72899afc | bellard | ret = 0;
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305 | 72899afc | bellard | break;
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306 | 72899afc | bellard | /* usb specific requests */
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307 | 72899afc | bellard | case GetHubStatus:
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308 | 72899afc | bellard | data[0] = 0; |
309 | 72899afc | bellard | data[1] = 0; |
310 | 72899afc | bellard | data[2] = 0; |
311 | 72899afc | bellard | data[3] = 0; |
312 | 72899afc | bellard | ret = 4;
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313 | 72899afc | bellard | break;
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314 | 72899afc | bellard | case GetPortStatus:
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315 | 72899afc | bellard | { |
316 | 72899afc | bellard | unsigned int n = index - 1; |
317 | 72899afc | bellard | USBHubPort *port; |
318 | 72899afc | bellard | if (n >= s->nb_ports)
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319 | 72899afc | bellard | goto fail;
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320 | 72899afc | bellard | port = &s->ports[n]; |
321 | 72899afc | bellard | data[0] = port->wPortStatus;
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322 | 72899afc | bellard | data[1] = port->wPortStatus >> 8; |
323 | 72899afc | bellard | data[2] = port->wPortChange;
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324 | 72899afc | bellard | data[3] = port->wPortChange >> 8; |
325 | 72899afc | bellard | ret = 4;
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326 | 72899afc | bellard | } |
327 | 72899afc | bellard | break;
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328 | 72899afc | bellard | case SetHubFeature:
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329 | 72899afc | bellard | case ClearHubFeature:
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330 | 72899afc | bellard | if (value == 0 || value == 1) { |
331 | 72899afc | bellard | } else {
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332 | 72899afc | bellard | goto fail;
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333 | 72899afc | bellard | } |
334 | 72899afc | bellard | ret = 0;
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335 | 72899afc | bellard | break;
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336 | 72899afc | bellard | case SetPortFeature:
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337 | 72899afc | bellard | { |
338 | 72899afc | bellard | unsigned int n = index - 1; |
339 | 72899afc | bellard | USBHubPort *port; |
340 | 72899afc | bellard | USBDevice *dev; |
341 | 72899afc | bellard | if (n >= s->nb_ports)
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342 | 72899afc | bellard | goto fail;
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343 | 72899afc | bellard | port = &s->ports[n]; |
344 | 72899afc | bellard | dev = port->port.dev; |
345 | 72899afc | bellard | switch(value) {
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346 | 72899afc | bellard | case PORT_SUSPEND:
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347 | 72899afc | bellard | port->wPortStatus |= PORT_STAT_SUSPEND; |
348 | 72899afc | bellard | break;
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349 | 72899afc | bellard | case PORT_RESET:
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350 | 72899afc | bellard | if (dev) {
|
351 | 4d611c9a | pbrook | usb_send_msg(dev, USB_MSG_RESET); |
352 | 72899afc | bellard | port->wPortChange |= PORT_STAT_C_RESET; |
353 | 72899afc | bellard | /* set enable bit */
|
354 | 72899afc | bellard | port->wPortStatus |= PORT_STAT_ENABLE; |
355 | 72899afc | bellard | } |
356 | 72899afc | bellard | break;
|
357 | 72899afc | bellard | case PORT_POWER:
|
358 | 72899afc | bellard | break;
|
359 | 72899afc | bellard | default:
|
360 | 72899afc | bellard | goto fail;
|
361 | 72899afc | bellard | } |
362 | 72899afc | bellard | ret = 0;
|
363 | 72899afc | bellard | } |
364 | 72899afc | bellard | break;
|
365 | 72899afc | bellard | case ClearPortFeature:
|
366 | 72899afc | bellard | { |
367 | 72899afc | bellard | unsigned int n = index - 1; |
368 | 72899afc | bellard | USBHubPort *port; |
369 | 72899afc | bellard | USBDevice *dev; |
370 | 72899afc | bellard | if (n >= s->nb_ports)
|
371 | 72899afc | bellard | goto fail;
|
372 | 72899afc | bellard | port = &s->ports[n]; |
373 | 72899afc | bellard | dev = port->port.dev; |
374 | 72899afc | bellard | switch(value) {
|
375 | 72899afc | bellard | case PORT_ENABLE:
|
376 | 72899afc | bellard | port->wPortStatus &= ~PORT_STAT_ENABLE; |
377 | 72899afc | bellard | break;
|
378 | 72899afc | bellard | case PORT_C_ENABLE:
|
379 | 72899afc | bellard | port->wPortChange &= ~PORT_STAT_C_ENABLE; |
380 | 72899afc | bellard | break;
|
381 | 72899afc | bellard | case PORT_SUSPEND:
|
382 | 72899afc | bellard | port->wPortStatus &= ~PORT_STAT_SUSPEND; |
383 | 72899afc | bellard | break;
|
384 | 72899afc | bellard | case PORT_C_SUSPEND:
|
385 | 72899afc | bellard | port->wPortChange &= ~PORT_STAT_C_SUSPEND; |
386 | 72899afc | bellard | break;
|
387 | 72899afc | bellard | case PORT_C_CONNECTION:
|
388 | 72899afc | bellard | port->wPortChange &= ~PORT_STAT_C_CONNECTION; |
389 | 72899afc | bellard | break;
|
390 | 72899afc | bellard | case PORT_C_OVERCURRENT:
|
391 | 72899afc | bellard | port->wPortChange &= ~PORT_STAT_C_OVERCURRENT; |
392 | 72899afc | bellard | break;
|
393 | 72899afc | bellard | case PORT_C_RESET:
|
394 | 72899afc | bellard | port->wPortChange &= ~PORT_STAT_C_RESET; |
395 | 72899afc | bellard | break;
|
396 | 72899afc | bellard | default:
|
397 | 72899afc | bellard | goto fail;
|
398 | 72899afc | bellard | } |
399 | 72899afc | bellard | ret = 0;
|
400 | 72899afc | bellard | } |
401 | 72899afc | bellard | break;
|
402 | 72899afc | bellard | case GetHubDescriptor:
|
403 | 985d1742 | bellard | { |
404 | 985d1742 | bellard | unsigned int n, limit, var_hub_size = 0; |
405 | 5fafdf24 | ths | memcpy(data, qemu_hub_hub_descriptor, |
406 | 985d1742 | bellard | sizeof(qemu_hub_hub_descriptor));
|
407 | 985d1742 | bellard | data[2] = s->nb_ports;
|
408 | 985d1742 | bellard | |
409 | 985d1742 | bellard | /* fill DeviceRemovable bits */
|
410 | 985d1742 | bellard | limit = ((s->nb_ports + 1 + 7) / 8) + 7; |
411 | 985d1742 | bellard | for (n = 7; n < limit; n++) { |
412 | 985d1742 | bellard | data[n] = 0x00;
|
413 | 985d1742 | bellard | var_hub_size++; |
414 | 985d1742 | bellard | } |
415 | 985d1742 | bellard | |
416 | 985d1742 | bellard | /* fill PortPwrCtrlMask bits */
|
417 | 985d1742 | bellard | limit = limit + ((s->nb_ports + 7) / 8); |
418 | 985d1742 | bellard | for (;n < limit; n++) {
|
419 | 985d1742 | bellard | data[n] = 0xff;
|
420 | 985d1742 | bellard | var_hub_size++; |
421 | 985d1742 | bellard | } |
422 | 985d1742 | bellard | |
423 | 985d1742 | bellard | ret = sizeof(qemu_hub_hub_descriptor) + var_hub_size;
|
424 | 67f36560 | bellard | data[0] = ret;
|
425 | 985d1742 | bellard | break;
|
426 | 985d1742 | bellard | } |
427 | 72899afc | bellard | default:
|
428 | 72899afc | bellard | fail:
|
429 | 72899afc | bellard | ret = USB_RET_STALL; |
430 | 72899afc | bellard | break;
|
431 | 72899afc | bellard | } |
432 | 72899afc | bellard | return ret;
|
433 | 72899afc | bellard | } |
434 | 72899afc | bellard | |
435 | 4d611c9a | pbrook | static int usb_hub_handle_data(USBDevice *dev, USBPacket *p) |
436 | 72899afc | bellard | { |
437 | 72899afc | bellard | USBHubState *s = (USBHubState *)dev; |
438 | 72899afc | bellard | int ret;
|
439 | 72899afc | bellard | |
440 | 4d611c9a | pbrook | switch(p->pid) {
|
441 | 72899afc | bellard | case USB_TOKEN_IN:
|
442 | 4d611c9a | pbrook | if (p->devep == 1) { |
443 | 72899afc | bellard | USBHubPort *port; |
444 | 72899afc | bellard | unsigned int status; |
445 | 72899afc | bellard | int i, n;
|
446 | 72899afc | bellard | n = (s->nb_ports + 1 + 7) / 8; |
447 | 4d611c9a | pbrook | if (p->len == 1) { /* FreeBSD workaround */ |
448 | 985d1742 | bellard | n = 1;
|
449 | 4d611c9a | pbrook | } else if (n > p->len) { |
450 | 72899afc | bellard | return USB_RET_BABBLE;
|
451 | 985d1742 | bellard | } |
452 | 72899afc | bellard | status = 0;
|
453 | 72899afc | bellard | for(i = 0; i < s->nb_ports; i++) { |
454 | 72899afc | bellard | port = &s->ports[i]; |
455 | 72899afc | bellard | if (port->wPortChange)
|
456 | 72899afc | bellard | status |= (1 << (i + 1)); |
457 | 72899afc | bellard | } |
458 | 72899afc | bellard | if (status != 0) { |
459 | 72899afc | bellard | for(i = 0; i < n; i++) { |
460 | 4d611c9a | pbrook | p->data[i] = status >> (8 * i);
|
461 | 72899afc | bellard | } |
462 | 72899afc | bellard | ret = n; |
463 | 72899afc | bellard | } else {
|
464 | 985d1742 | bellard | ret = USB_RET_NAK; /* usb11 11.13.1 */
|
465 | 72899afc | bellard | } |
466 | 72899afc | bellard | } else {
|
467 | 72899afc | bellard | goto fail;
|
468 | 72899afc | bellard | } |
469 | 72899afc | bellard | break;
|
470 | 72899afc | bellard | case USB_TOKEN_OUT:
|
471 | 72899afc | bellard | default:
|
472 | 72899afc | bellard | fail:
|
473 | 72899afc | bellard | ret = USB_RET_STALL; |
474 | 72899afc | bellard | break;
|
475 | 72899afc | bellard | } |
476 | 72899afc | bellard | return ret;
|
477 | 72899afc | bellard | } |
478 | 72899afc | bellard | |
479 | 4d611c9a | pbrook | static int usb_hub_broadcast_packet(USBHubState *s, USBPacket *p) |
480 | 72899afc | bellard | { |
481 | 72899afc | bellard | USBHubPort *port; |
482 | 72899afc | bellard | USBDevice *dev; |
483 | 72899afc | bellard | int i, ret;
|
484 | 72899afc | bellard | |
485 | 72899afc | bellard | for(i = 0; i < s->nb_ports; i++) { |
486 | 72899afc | bellard | port = &s->ports[i]; |
487 | 72899afc | bellard | dev = port->port.dev; |
488 | 72899afc | bellard | if (dev && (port->wPortStatus & PORT_STAT_ENABLE)) {
|
489 | 4d611c9a | pbrook | ret = dev->handle_packet(dev, p); |
490 | 72899afc | bellard | if (ret != USB_RET_NODEV) {
|
491 | 72899afc | bellard | return ret;
|
492 | 72899afc | bellard | } |
493 | 72899afc | bellard | } |
494 | 72899afc | bellard | } |
495 | 72899afc | bellard | return USB_RET_NODEV;
|
496 | 72899afc | bellard | } |
497 | 72899afc | bellard | |
498 | 4d611c9a | pbrook | static int usb_hub_handle_packet(USBDevice *dev, USBPacket *p) |
499 | 72899afc | bellard | { |
500 | 72899afc | bellard | USBHubState *s = (USBHubState *)dev; |
501 | 72899afc | bellard | |
502 | 72899afc | bellard | #if defined(DEBUG) && 0 |
503 | 72899afc | bellard | printf("usb_hub: pid=0x%x\n", pid);
|
504 | 72899afc | bellard | #endif
|
505 | 72899afc | bellard | if (dev->state == USB_STATE_DEFAULT &&
|
506 | 72899afc | bellard | dev->addr != 0 &&
|
507 | 4d611c9a | pbrook | p->devaddr != dev->addr && |
508 | 5fafdf24 | ths | (p->pid == USB_TOKEN_SETUP || |
509 | 5fafdf24 | ths | p->pid == USB_TOKEN_OUT || |
510 | 4d611c9a | pbrook | p->pid == USB_TOKEN_IN)) { |
511 | 72899afc | bellard | /* broadcast the packet to the devices */
|
512 | 4d611c9a | pbrook | return usb_hub_broadcast_packet(s, p);
|
513 | 72899afc | bellard | } |
514 | 4d611c9a | pbrook | return usb_generic_handle_packet(dev, p);
|
515 | 72899afc | bellard | } |
516 | 72899afc | bellard | |
517 | 059809e4 | bellard | static void usb_hub_handle_destroy(USBDevice *dev) |
518 | 059809e4 | bellard | { |
519 | 059809e4 | bellard | USBHubState *s = (USBHubState *)dev; |
520 | 059809e4 | bellard | |
521 | 059809e4 | bellard | qemu_free(s); |
522 | 059809e4 | bellard | } |
523 | 059809e4 | bellard | |
524 | 0d92ed30 | pbrook | USBDevice *usb_hub_init(int nb_ports)
|
525 | 72899afc | bellard | { |
526 | 72899afc | bellard | USBHubState *s; |
527 | 72899afc | bellard | USBHubPort *port; |
528 | 72899afc | bellard | int i;
|
529 | 72899afc | bellard | |
530 | 72899afc | bellard | if (nb_ports > MAX_PORTS)
|
531 | 72899afc | bellard | return NULL; |
532 | 72899afc | bellard | s = qemu_mallocz(sizeof(USBHubState));
|
533 | 72899afc | bellard | if (!s)
|
534 | 72899afc | bellard | return NULL; |
535 | 72899afc | bellard | s->dev.speed = USB_SPEED_FULL; |
536 | 72899afc | bellard | s->dev.handle_packet = usb_hub_handle_packet; |
537 | 72899afc | bellard | |
538 | 72899afc | bellard | /* generic USB device init */
|
539 | 72899afc | bellard | s->dev.handle_reset = usb_hub_handle_reset; |
540 | 72899afc | bellard | s->dev.handle_control = usb_hub_handle_control; |
541 | 72899afc | bellard | s->dev.handle_data = usb_hub_handle_data; |
542 | 059809e4 | bellard | s->dev.handle_destroy = usb_hub_handle_destroy; |
543 | 72899afc | bellard | |
544 | 1f6e24e7 | bellard | pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Hub"); |
545 | 1f6e24e7 | bellard | |
546 | 72899afc | bellard | s->nb_ports = nb_ports; |
547 | 72899afc | bellard | for(i = 0; i < s->nb_ports; i++) { |
548 | 72899afc | bellard | port = &s->ports[i]; |
549 | 0d92ed30 | pbrook | qemu_register_usb_port(&port->port, s, i, usb_hub_attach); |
550 | 72899afc | bellard | port->wPortStatus = PORT_STAT_POWER; |
551 | 72899afc | bellard | port->wPortChange = 0;
|
552 | 72899afc | bellard | } |
553 | 72899afc | bellard | return (USBDevice *)s;
|
554 | 72899afc | bellard | } |