cvs.zerfleddert.de Git - usb-driver/blob - xpcu.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <unistd.h>
   4 #include <strings.h>
   5 #include <usb.h>
   6 #include "xpcu.h"
   7 #include "usb-driver.h"
   8
   9 int xpcu_deviceinfo(struct xpcu_s *xpcu, unsigned char *buf) {
  10         int i,j,k,l;
  11         int len = 0;
  12         WDU_CONFIGURATION **pConfigs, **pActiveConfig;
  13         WDU_INTERFACE **pActiveInterface;
  14
  15         if (buf) {
  16                 struct usb_device_info *udi = (struct usb_device_info*)(buf+len);
  17
  18                 udi->Descriptor.bLength = sizeof(WDU_DEVICE_DESCRIPTOR);
  19                 udi->Descriptor.bDescriptorType = xpcu->dev->descriptor.bDescriptorType;
  20                 udi->Descriptor.bcdUSB = xpcu->dev->descriptor.bcdUSB;
  21                 udi->Descriptor.bDeviceClass = xpcu->dev->descriptor.bDeviceClass;
  22                 udi->Descriptor.bDeviceSubClass = xpcu->dev->descriptor.bDeviceSubClass;
  23                 udi->Descriptor.bDeviceProtocol = xpcu->dev->descriptor.bDeviceProtocol;
  24                 udi->Descriptor.bMaxPacketSize0 = xpcu->dev->descriptor.bMaxPacketSize0;
  25                 udi->Descriptor.idVendor = xpcu->dev->descriptor.idVendor;
  26                 udi->Descriptor.idProduct = xpcu->dev->descriptor.idProduct;
  27                 udi->Descriptor.bcdDevice = xpcu->dev->descriptor.bcdDevice;
  28                 udi->Descriptor.iManufacturer = xpcu->dev->descriptor.iManufacturer;
  29                 udi->Descriptor.iProduct = xpcu->dev->descriptor.iProduct;
  30                 udi->Descriptor.iSerialNumber = xpcu->dev->descriptor.iSerialNumber;
  31                 udi->Descriptor.bNumConfigurations = xpcu->dev->descriptor.bNumConfigurations;
  32
  33                 /* TODO: Fix Pipe0! */
  34                 udi->Pipe0.dwNumber = 0x00;
  35                 udi->Pipe0.dwMaximumPacketSize = xpcu->dev->descriptor.bMaxPacketSize0;
  36                 udi->Pipe0.type = 0;
  37                 udi->Pipe0.direction = WDU_DIR_IN_OUT;
  38                 udi->Pipe0.dwInterval = 0;
  39
  40                 pConfigs = &(udi->pConfigs);
  41                 pActiveConfig = &(udi->pActiveConfig);
  42                 pActiveInterface = &(udi->pActiveInterface[0]);
  43         }
  44
  45         len = sizeof(struct usb_device_info);
  46
  47         for (i=0; i<xpcu->dev->descriptor.bNumConfigurations; i++)
  48         {
  49                 struct usb_config_descriptor *conf_desc = &xpcu->dev->config[i];
  50                 WDU_INTERFACE **pInterfaces;
  51                 WDU_ALTERNATE_SETTING **pAlternateSettings[conf_desc->bNumInterfaces];
  52                 WDU_ALTERNATE_SETTING **pActiveAltSetting[conf_desc->bNumInterfaces];
  53
  54                 if (buf) {
  55                         WDU_CONFIGURATION *cfg = (WDU_CONFIGURATION*)(buf+len);
  56
  57                         *pConfigs = cfg;
  58                         *pActiveConfig = cfg;
  59
  60                         cfg->Descriptor.bLength = conf_desc->bLength;
  61                         cfg->Descriptor.bDescriptorType = conf_desc->bDescriptorType;
  62                         cfg->Descriptor.wTotalLength = conf_desc->wTotalLength;
  63                         cfg->Descriptor.bNumInterfaces = conf_desc->bNumInterfaces;
  64                         cfg->Descriptor.bConfigurationValue = conf_desc->bConfigurationValue;
  65                         cfg->Descriptor.iConfiguration = conf_desc->iConfiguration;
  66                         cfg->Descriptor.bmAttributes = conf_desc->bmAttributes;
  67                         cfg->Descriptor.MaxPower = conf_desc->MaxPower;
  68
  69                         cfg->dwNumInterfaces = conf_desc->bNumInterfaces;
  70
  71                         pInterfaces = &(cfg->pInterfaces);
  72                 }
  73                 len += sizeof(WDU_CONFIGURATION);
  74
  75                 if (buf) {
  76                         *pInterfaces = (WDU_INTERFACE*)(buf+len);
  77                         for (j=0; j<conf_desc->bNumInterfaces; j++) {
  78                                 WDU_INTERFACE *iface = (WDU_INTERFACE*)(buf+len);
  79
  80                                 pActiveInterface[j] = iface;
  81
  82                                 pAlternateSettings[j] = &(iface->pAlternateSettings);
  83                                 iface->dwNumAltSettings = xpcu->dev->config[i].interface[j].num_altsetting;
  84                                 pActiveAltSetting[j] = &(iface->pActiveAltSetting);
  85
  86                                 len += sizeof(WDU_INTERFACE);
  87                         }
  88                 } else {
  89                         len += sizeof(WDU_INTERFACE) * conf_desc->bNumInterfaces;
  90                 }
  91
  92                 for (j=0; j<conf_desc->bNumInterfaces; j++)
  93                 {
  94                         struct usb_interface *interface = &xpcu->dev->config[i].interface[j];
  95
  96                         if (buf) {
  97                                 *pAlternateSettings[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
  98                                 /* FIXME: */
  99                                 *pActiveAltSetting[j] = (WDU_ALTERNATE_SETTING*)(buf+len);
 100                         }
 101
 102                         for(k=0; k<interface->num_altsetting; k++)
 103                         {
 104                                 unsigned char bNumEndpoints = interface->altsetting[k].bNumEndpoints;
 105                                 WDU_ENDPOINT_DESCRIPTOR **pEndpointDescriptors;
 106                                 WDU_PIPE_INFO **pPipes;
 107
 108                                 if (buf) {
 109                                         WDU_ALTERNATE_SETTING *altset = (WDU_ALTERNATE_SETTING*)(buf+len);
 110
 111                                         altset->Descriptor.bLength = interface->altsetting[k].bLength;
 112                                         altset->Descriptor.bDescriptorType = interface->altsetting[k].bDescriptorType;
 113                                         altset->Descriptor.bInterfaceNumber = interface->altsetting[k].bInterfaceNumber;
 114                                         altset->Descriptor.bAlternateSetting = interface->altsetting[k].bAlternateSetting;
 115                                         altset->Descriptor.bNumEndpoints = interface->altsetting[k].bNumEndpoints;
 116                                         altset->Descriptor.bInterfaceClass = interface->altsetting[k].bInterfaceClass;
 117                                         altset->Descriptor.bInterfaceSubClass = interface->altsetting[k].bInterfaceSubClass;
 118                                         altset->Descriptor.bInterfaceProtocol = interface->altsetting[k].bInterfaceProtocol;
 119                                         altset->Descriptor.iInterface = interface->altsetting[k].iInterface;
 120                                         pEndpointDescriptors = &(altset->pEndpointDescriptors);
 121                                         pPipes = &(altset->pPipes);
 122
 123                                 }
 124                                 len +=sizeof(WDU_ALTERNATE_SETTING);
 125
 126                                 if (buf) {
 127                                         *pEndpointDescriptors = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
 128                                         for (l = 0; l < bNumEndpoints; l++) {
 129                                                 WDU_ENDPOINT_DESCRIPTOR *ed = (WDU_ENDPOINT_DESCRIPTOR*)(buf+len);
 130
 131                                                 ed->bLength = interface->altsetting[k].endpoint[l].bLength;
 132                                                 ed->bDescriptorType = interface->altsetting[k].endpoint[l].bDescriptorType;
 133                                                 ed->bEndpointAddress = interface->altsetting[k].endpoint[l].bEndpointAddress;
 134                                                 ed->bmAttributes = interface->altsetting[k].endpoint[l].bmAttributes;
 135                                                 ed->wMaxPacketSize = interface->altsetting[k].endpoint[l].wMaxPacketSize;
 136                                                 ed->bInterval = interface->altsetting[k].endpoint[l].bInterval;
 137
 138                                                 len += sizeof(WDU_ENDPOINT_DESCRIPTOR);
 139                                         }
 140
 141                                         *pPipes = (WDU_PIPE_INFO*)(buf+len);
 142                                         for (l = 0; l < bNumEndpoints; l++) {
 143                                                 WDU_PIPE_INFO *pi = (WDU_PIPE_INFO*)(buf+len);
 144
 145                                                 pi->dwNumber = interface->altsetting[k].endpoint[l].bEndpointAddress;
 146                                                 pi->dwMaximumPacketSize = WDU_GET_MAX_PACKET_SIZE(interface->altsetting[k].endpoint[l].wMaxPacketSize);
 147                                                 pi->type = interface->altsetting[k].endpoint[l].bmAttributes & USB_ENDPOINT_TYPE_MASK;
 148                                                 if (pi->type == PIPE_TYPE_CONTROL)
 149                                                         pi->direction = WDU_DIR_IN_OUT;
 150                                                 else
 151                                                 {
 152                                                         pi->direction = interface->altsetting[k].endpoint[l].bEndpointAddress & USB_ENDPOINT_DIR_MASK ?  WDU_DIR_IN : WDU_DIR_OUT;
 153                                                 }
 154
 155                                                 pi->dwInterval = interface->altsetting[k].endpoint[l].bInterval;
 156
 157                                                 len += sizeof(WDU_PIPE_INFO);
 158                                         }
 159                                 } else {
 160                                         len +=(sizeof(WDU_ENDPOINT_DESCRIPTOR)+sizeof(WDU_PIPE_INFO))*bNumEndpoints;
 161                                 }
 162                         }
 163                 }
 164         }
 165
 166         return len;
 167 }
 168
 169 int xpcu_claim(struct xpcu_s *xpcu, int claim) {
 170         int ret = 0;
 171         static int claimed = 0;
 172
 173         if (xpcu->interface < 0)
 174                 return -1;
 175
 176         if (claim == XPCU_CLAIM) {
 177                 if (claimed)
 178                         return 0;
 179
 180                 ret = usb_claim_interface(xpcu->handle, xpcu->interface);
 181                 if (!ret) {
 182                         claimed = 1;
 183                         ret = usb_set_altinterface(xpcu->handle, xpcu->alternate);
 184                         if (ret)
 185                                 fprintf(stderr, "usb_set_altinterface: %d\n", ret);
 186                 } else {
 187                         fprintf(stderr, "usb_claim_interface: %d -> %d (%s)\n",
 188                                         xpcu->interface, ret, usb_strerror());
 189                 }
 190         } else {
 191                 if (!claimed)
 192                         return 0;
 193
 194                 ret = usb_release_interface(xpcu->handle, xpcu->interface);
 195                 if (!ret)
 196                         claimed = 0;
 197         }
 198
 199         return ret;
 200 }
 201
 202 struct xpcu_s *xpcu_open(void) {
 203         static struct xpcu_s xpcu;
 204
 205         bzero(&xpcu, sizeof(xpcu));
 206         xpcu.interface = -1;
 207         xpcu.alternate = -1;
 208
 209         usb_init();
 210         usb_find_busses();
 211         usb_find_devices();
 212
 213         xpcu.busses = usb_get_busses();
 214
 215         return &xpcu;
 216 }