2 * Copyright (c) 2007, Benedikt Sauter <sauter@ixbat.de>
5 * Short descripton of file:
6 * I take the function names and parameters mainly from
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
14 * * Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * * Redistributions in binary form must reproduce the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer in the documentation and/or other materials provided
19 * with the distribution.
20 * * Neither the name of the FH Augsburg nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include "../host/host.h"
40 #include "../usbspec/usb11spec.h"
41 #include "../../malloc.h"
42 #include "../../string.h"
44 #define cleargbuf() memset(gbuf, 0, 0xffff)
45 /* internal global buffer */
46 static u8 gbuf[0xffff];
48 /******************* Device Operations **********************/
50 * Open a device with verndor- and product-id for a communication.
52 struct usb_device *usb_open(u32 vendor_id, u32 product_id)
54 struct usb_device* dev;
55 struct element * iterator = core.devices->head;
56 while(iterator != NULL) {
57 dev = (struct usb_device*)iterator->data;
59 if(dev->idVendor==vendor_id&&dev->idProduct==product_id)
62 iterator=iterator->next;
70 * Open a device with an class code for a communication.
72 struct usb_device *usb_open_class(u8 class)
74 struct usb_device* dev;
75 struct element * iterator = core.devices->head;
76 while(iterator != NULL) {
77 dev = (struct usb_device*)iterator->data;
79 if(dev->bDeviceClass==class)
82 iterator=iterator->next;
87 /* Close device after a communication.
89 s8 usb_close(struct usb_device *dev)
95 s8 usb_reset(struct usb_device *dev)
103 /******************* Control Transfer **********************/
106 * Create a control transfer.
108 s8 usb_control_msg(struct usb_device *dev, u8 requesttype, u8 request,
109 u16 value, u16 index, u16 length, u8 *buf, u16 timeout)
111 struct usb_irp *irp = (struct usb_irp*)malloc(sizeof(struct usb_irp));
115 irp->epsize = dev->bMaxPacketSize0;
116 irp->type = USB_CTRL;
118 buf[0]=(u8)requesttype;
121 buf[3]=(u8)(value >> 8);
123 buf[5]=(u8)(index >> 8);
125 buf[7]=(u8)(length >> 8);
129 irp->timeout = timeout;
137 s8 usb_get_descriptor(struct usb_device *dev, u8 type, u8 index, u8 *buf, u8 size)
139 usb_control_msg(dev, 0x80, GET_DESCRIPTOR, (type << 8) | index, 0, size, buf, 0);
143 s8 usb_get_string(struct usb_device *dev, u8 index, u8 langid)
149 char *usb_get_string_simple(struct usb_device *dev, u8 index)
152 usb_get_descriptor(dev, STRING, index, gbuf, (u8) 8);
153 usb_get_descriptor(dev, STRING, index, gbuf, gbuf[0]);
155 char *str = (char*)malloc((gbuf[0]/2));
156 memset(str, '\0', (gbuf[0]/2));
159 for(i=0; i<(gbuf[0]/2)-1; i++) {
160 str[i] = gbuf[2+(i*2)];
166 /* ask first 8 bytes of device descriptor with this special
167 * GET Descriptor Request, when device address = 0
169 s8 usb_get_desc_dev_simple(struct usb_device *dev)
172 usb_get_descriptor(dev, DEVICE, 0, gbuf, 8);
175 printf("FU: %d\n", gbuf[7]);
178 dev->bMaxPacketSize0 = gbuf[7];
182 s8 usb_get_desc_dev(struct usb_device *dev)
185 if (usb_get_desc_dev_simple(dev) < 0) {
188 usb_get_descriptor(dev, DEVICE, 0, gbuf, gbuf[0]);
190 dev->bLength = gbuf[0];
191 dev->bDescriptorType = gbuf[1];
192 dev->bcdUSB = (u16) (gbuf[3] << 8 | gbuf[2]);
193 dev->bDeviceClass = gbuf[4];
194 dev->bDeviceSubClass = gbuf[5];
195 dev->bDeviceProtocoll = gbuf[6];
196 dev->idVendor = (u16) (gbuf[9] << 8) | (gbuf[8]);
197 dev->idProduct = (u16) (gbuf[11] << 8) | (gbuf[10]);
198 dev->bcdDevice = (u16) (gbuf[13] << 8) | (gbuf[12]);
199 dev->iManufacturer = gbuf[14];
200 dev->iProduct = gbuf[15];
201 dev->iSerialNumber = gbuf[16];
202 dev->bNumConfigurations = gbuf[17];
205 struct usb_conf *conf = dev->conf = (struct usb_conf*) malloc(sizeof(struct usb_conf));
206 for(i=0; i <= dev->bNumConfigurations; i++) {
208 conf = (struct usb_conf*) malloc(sizeof(struct usb_conf));
210 usb_get_desc_config_ext(dev, i, conf);
216 s8 usb_get_desc_configuration(struct usb_device *dev, u8 index, struct usb_conf *conf)
219 usb_get_descriptor(dev, CONFIGURATION, index, gbuf, 8);
220 usb_get_descriptor(dev, CONFIGURATION, index, gbuf, gbuf[0]);
222 conf->bLength = gbuf[0];
223 conf->bDescriptorType = gbuf[1];
224 conf->wTotalLength = (u16) (gbuf[3] << 8 | gbuf[2]);
225 conf->bNumInterfaces = gbuf[4];
226 conf->bConfigurationValue = gbuf[5];
227 conf->iConfiguration = gbuf[6];
228 conf->bmAttributes = gbuf[7];
229 conf->bMaxPower = gbuf[8];
235 /* returns more information about CONFIGURATION, including
236 * INTERFACE(s) and ENDPOINT(s)
237 * usb_get_desc_configuration() must be called for this device before
239 s8 usb_get_desc_config_ext(struct usb_device *dev, u8 index, struct usb_conf *conf)
243 usb_get_desc_configuration(dev, index, conf);
244 usb_get_descriptor(dev, CONFIGURATION, index, gbuf, dev->conf->wTotalLength);
247 struct usb_intf *ifs = dev->conf->intf = (struct usb_intf*) malloc(sizeof(struct usb_intf));
248 for(i=1; i <= dev->conf->bNumInterfaces; i++) {
250 ifs->next = (struct usb_intf*) malloc(sizeof(struct usb_intf));
253 ifs->bLength = gbuf[off+0];
254 ifs->bDescriptorType = gbuf[off+1];
255 ifs->bInterfaceNumber = gbuf[off+2];
256 ifs->bAlternateSetting = gbuf[off+3];
257 ifs->bNumEndpoints = gbuf[off+4];
258 ifs->bInterfaceClass = gbuf[off+5];
259 ifs->bInterfaceSubClass = gbuf[off+6];
260 ifs->bInterfaceProtocol = gbuf[off+7];
261 ifs->iInterface = gbuf[off+8];
265 struct usb_endp *ep = ifs->endp = (struct usb_endp*) malloc(sizeof(struct usb_endp));
266 for(j=1; j <= ifs->bNumEndpoints; j++) {
267 /* skip HID Device Descriptor (see lsusb) */
268 if(gbuf[off+1] == 33) {
275 ep->next = (struct usb_endp*) malloc(sizeof(struct usb_endp));
279 ep->bLength = gbuf[off+0];
280 ep->bDescriptorType = gbuf[off+1];
281 ep->bEndpointAddress = gbuf[off+2];
282 ep->bmAttributes = gbuf[off+3];
283 ep->wMaxPacketSize = (u16) ((gbuf[off+5] << 8) | (gbuf[off+4]));
284 ep->bInterval = gbuf[off+6];
290 printf("=============\nafter usb_get_desc_config_ext:\n");
291 hexdump((void*) gbuf, dev->conf->wTotalLength);
295 s8 usb_set_address(struct usb_device *dev, u8 address)
298 usb_control_msg(dev, 0x00, SET_ADDRESS, address, 0, 0, gbuf, 0);
302 s8 usb_set_configuration(struct usb_device *dev, u8 configuration)
305 usb_control_msg(dev, 0x00, SET_CONFIGURATION, configuration, 0, 0, gbuf, 0);
309 s8 usb_set_altinterface(struct usb_device *dev, u8 alternate)
317 /******************* Bulk Transfer **********************/
320 * Write to an a bulk endpoint.
322 s8 usb_bulk_write(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)
324 struct usb_irp * irp = (struct usb_irp*)malloc(sizeof(struct usb_irp));
326 //irp->devaddress = dev->address;
329 irp->epsize = dev->epSize[ep]; // ermitteln
330 irp->type = USB_BULK;
334 irp->timeout = timeout;
343 * Read from an bulk endpoint.
345 s8 usb_bulk_read(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)
347 struct usb_irp * irp = (struct usb_irp*)malloc(sizeof(struct usb_irp));
348 //irp->devaddress = dev->address;
351 irp->endpoint = ep | 0x80; // from device to host
352 irp->epsize = dev->epSize[ep]; // ermitteln
353 irp->type = USB_BULK;
357 irp->timeout = timeout;
366 /******************* Interrupt Transfer **********************/
368 * Write to an interrupt endpoint.
370 s8 usb_interrupt_write(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)
377 * Read from an interrupt endpoint.
379 s8 usb_interrupt_read(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)
386 /******************* Isochron Transfer **********************/
389 * Write to an isochron endpoint.
391 s8 usb_isochron_write(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)
398 * Read from an isochron endpoint.
400 s8 usb_isochron_read(struct usb_device *dev, u8 ep, u8 *buf, u8 size, u8 timeout)