minix/lib/libdevman/usb.c

   1 #include <errno.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <minix/config.h>
   6 #include <minix/const.h>
   7 #include <minix/devman.h>
   8 #include <minix/usb.h>
   9 #include <minix/sysutil.h>
  10
  11 #include "local.h"
  12
  13 #define CHECKOUTOFMEM(ptr) if(ptr == NULL) \
  14                                panic("Out of memory! (%s, line %d)", \
  15                                                              __FILE__, __LINE__)
  16
  17
  18 static int (*bind_cb) (struct devman_usb_bind_cb_data *data, endpoint_t ep);
  19 static int (*unbind_cb) (struct devman_usb_bind_cb_data *data, endpoint_t ep);
  20
  21 /****************************************************************************
  22  *    devman_usb_add_attr                                                   *
  23  ***************************************************************************/
  24 static void
  25 devman_usb_add_attr
  26 (struct devman_dev *dev, const char *name, const char *data)
  27 {
  28         struct devman_static_attribute *attr = (struct devman_static_attribute *)
  29             malloc(sizeof(struct devman_static_attribute));
  30
  31         CHECKOUTOFMEM(attr);
  32
  33         attr->name = malloc((strlen(name)+1)*sizeof(char));
  34         memcpy(attr->name, name, (strlen(name)+1));
  35
  36         attr->data = malloc((strlen(data)+1)*sizeof(char));
  37         memcpy(attr->data, data, (strlen(data)+1));
  38         TAILQ_INSERT_TAIL(&dev->attrs, attr, list);
  39 }
  40
  41 /****************************************************************************
  42  *    add_device_attributes                                                 *
  43  ***************************************************************************/
  44 static void
  45 add_device_attributes
  46 (struct devman_usb_dev *udev)
  47 {
  48         int ret;
  49         char data[32];
  50
  51         ret = snprintf(data,sizeof(data),"0x%02x",udev->desc->bDeviceClass);
  52         if (ret < 0) {
  53                 panic("add_device_attributes: snprintf failed");
  54         }
  55         devman_usb_add_attr(udev->dev, "bDeviceClass", data);
  56
  57         ret = snprintf(data,sizeof(data),"0x%02x",udev->desc->bDeviceSubClass);
  58         if (ret < 0) {
  59                 panic("add_device_attributes: snprintf failed");
  60         }
  61         devman_usb_add_attr(udev->dev, "bDeviceSubClass", data);
  62
  63         ret = snprintf(data,sizeof(data),"0x%02x",udev->desc->bDeviceProtocol);
  64         if (ret < 0) {
  65                 panic("add_device_attributes: snprintf failed");
  66         }
  67         devman_usb_add_attr(udev->dev, "bDeviceProtocol", data);
  68
  69         ret = snprintf(data,sizeof(data),"0x%04x",UGETW(udev->desc->idVendor));
  70         if (ret < 0) {
  71                 panic("add_device_attributes: snprintf failed");
  72         }
  73         devman_usb_add_attr(udev->dev, "idVendor", data);
  74
  75         ret = snprintf(data,sizeof(data),"0x%04x",UGETW(udev->desc->idProduct));
  76         if (ret < 0) {
  77                 panic("add_device_attributes: snprintf failed");
  78         }
  79         devman_usb_add_attr(udev->dev, "idProduct", data);
  80
  81         if (udev->product)
  82                 devman_usb_add_attr(udev->dev, "Product", udev->product);
  83         if (udev->manufacturer)
  84                 devman_usb_add_attr(udev->dev, "Manufacturer", udev->manufacturer);
  85         if (udev->serial)
  86                 devman_usb_add_attr(udev->dev, "SerialNumber", udev->serial);
  87         devman_usb_add_attr(udev->dev, "dev_type", "USB_DEV");
  88 }
  89
  90 /****************************************************************************
  91  *     add_interface_attributes                                             *
  92  ***************************************************************************/
  93 static void
  94 add_interface_attributes
  95 (struct devman_usb_interface *intf)
  96 {
  97         int ret;
  98         char data[32];
  99
 100         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bInterfaceNumber);
 101         if (ret < 0) {
 102                 panic("add_device_attributes: snprintf failed");
 103         }
 104         devman_usb_add_attr(intf->dev, "bInterfaceNumber", data);
 105
 106         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bAlternateSetting);
 107         if (ret < 0) {
 108                 panic("add_device_attributes: snprintf failed");
 109         }
 110         devman_usb_add_attr(intf->dev, "bAlternateSetting", data);
 111
 112         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bNumEndpoints);
 113         if (ret < 0) {
 114                 panic("add_device_attributes: snprintf failed");
 115         }
 116         devman_usb_add_attr(intf->dev, "bNumEndpoints", data);
 117
 118         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bInterfaceClass);
 119         if (ret < 0) {
 120                 panic("add_device_attributes: snprintf failed");
 121         }
 122         devman_usb_add_attr(intf->dev, "bInterfaceClass", data);
 123
 124         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bInterfaceSubClass);
 125         if (ret < 0) {
 126                 panic("add_device_attributes: snprintf failed");
 127         }
 128         devman_usb_add_attr(intf->dev, "bInterfaceSubClass", data);
 129
 130         ret = snprintf(data,sizeof(data),"0x%02x",intf->desc->bInterfaceProtocol);
 131         if (ret < 0) {
 132                 panic("add_device_attributes: snprintf failed");
 133         }
 134         devman_usb_add_attr(intf->dev, "bInterfaceProtocol", data);
 135
 136         devman_usb_add_attr(intf->dev, "dev_type", "USB_INTF");
 137 }
 138
 139
 140 /****************************************************************************
 141  *      devman_usb_device_new                                               *
 142  ***************************************************************************/
 143 struct devman_usb_dev*
 144 devman_usb_device_new
 145 (int dev_id)
 146 {
 147         struct devman_usb_dev *udev = NULL;
 148         struct devman_dev * dev = NULL;
 149
 150         udev = (struct devman_usb_dev *) malloc(sizeof(struct devman_usb_dev));
 151
 152         CHECKOUTOFMEM(udev);
 153
 154         /* allocate device */
 155         dev = (struct devman_dev *) malloc(sizeof(struct devman_dev));
 156
 157         CHECKOUTOFMEM(dev);
 158
 159         udev->dev_id = dev_id;
 160         udev->dev    = dev;
 161
 162         dev->parent_dev_id = 0; /* For now add it directly to the root dev */
 163
 164         snprintf(dev->name, DEVMAN_DEV_NAME_LEN, "USB%d", dev_id);
 165
 166         TAILQ_INIT(&dev->attrs);
 167
 168         return udev;
 169 }
 170
 171 /****************************************************************************
 172  *     devman_usb_device_delete                                             *
 173  ***************************************************************************/
 174 void devman_usb_device_delete(struct devman_usb_dev *udev)
 175 {
 176         int i;
 177         struct devman_static_attribute *attr,*temp;
 178
 179
 180         for (i=0; i < udev->intf_count; i++) {
 181                 TAILQ_FOREACH_SAFE(attr, &udev->interfaces[i].dev->attrs, list, temp)
 182                 {
 183                         free(attr->name);
 184                         free(attr->data);
 185                         free(attr);
 186                 }
 187                 free(udev->interfaces[i].dev);
 188         }
 189
 190         TAILQ_FOREACH_SAFE(attr, &udev->dev->attrs, list, temp) {
 191                 free(attr->name);
 192                 free(attr->data);
 193                 free(attr);
 194         }
 195
 196         free(udev->dev);
 197         free(udev);
 198 }
 199
 200 static int devman_usb_bind_cb(void *data, endpoint_t ep) {
 201         if (bind_cb) {
 202                 return bind_cb((struct devman_usb_bind_cb_data *) data, ep);
 203         } else {
 204                 return ENODEV;
 205         }
 206 }
 207
 208 static int devman_usb_unbind_cb(void *data, endpoint_t ep) {
 209         if (unbind_cb) {
 210                 return unbind_cb((struct devman_usb_bind_cb_data *) data, ep);
 211         } else {
 212                 return ENODEV;
 213         }
 214 }
 215
 216 /****************************************************************************
 217  *     devman_usb_device_add                                                *
 218  ***************************************************************************/
 219 int devman_usb_device_add(struct devman_usb_dev *dev)
 220 {
 221         int i,res = 0;
 222         add_device_attributes(dev);
 223
 224         /* add the USB device */
 225         dev->cb_data.dev_id    = dev->dev_id;
 226         dev->cb_data.interface = -1;
 227
 228         dev->dev->bind_cb   = devman_usb_bind_cb;
 229         dev->dev->unbind_cb = devman_usb_unbind_cb;
 230         dev->dev->data       = &dev->cb_data;
 231
 232         res = devman_add_device(dev->dev);
 233
 234         if (res != 0) {
 235                 panic("devman_usb_device_add(): devman_add_device failed.");
 236         }
 237
 238         /* add the USB interfaces */
 239         for (i=0; i < dev->intf_count; i++) {
 240                 /* prepare */
 241                 dev->interfaces[i].dev =
 242                     (struct devman_dev *) malloc(sizeof(struct devman_dev));
 243                 CHECKOUTOFMEM(dev->interfaces[i].dev);
 244
 245                 TAILQ_INIT(&dev->interfaces[i].dev->attrs);
 246                 snprintf(dev->interfaces[i].dev->name, DEVMAN_DEV_NAME_LEN,
 247                     "intf%d", i);
 248
 249                 add_interface_attributes(&dev->interfaces[i]);
 250
 251                 dev->interfaces[i].dev->parent_dev_id = dev->dev->dev_id;
 252
 253
 254                 dev->interfaces[i].cb_data.dev_id    = dev->dev_id;
 255                 dev->interfaces[i].cb_data.interface =
 256                     dev->interfaces[i].desc->bInterfaceNumber;
 257
 258                 dev->interfaces[i].dev->bind_cb   = devman_usb_bind_cb;
 259                 dev->interfaces[i].dev->unbind_cb = devman_usb_unbind_cb;
 260                 dev->interfaces[i].dev->data      = &dev->interfaces[i].cb_data;
 261
 262                 /* add */
 263                 res = devman_add_device(dev->interfaces[i].dev);
 264
 265                 if (res != 0) {
 266                         panic("devman_usb_device_add(): devman_add_device failed.");
 267                 }
 268         }
 269
 270         return res;
 271 }
 272
 273 /****************************************************************************
 274  *     devman_usb_device_remove                                             *
 275  ***************************************************************************/
 276 int devman_usb_device_remove(struct devman_usb_dev *dev)
 277 {
 278         int i, res = 0;
 279
 280         for (i=0; i < dev->intf_count; i++) {
 281
 282                 res = devman_del_device(dev->interfaces[i].dev);
 283
 284                 if (res != 0) {
 285                         panic("devman_usb_device_remove(): devman_del_device failed.");
 286                 }
 287         }
 288         res = devman_del_device(dev->dev);
 289         return res;
 290 }
 291
 292 /****************************************************************************
 293  *     devman_usb_init                                                      *
 294  ***************************************************************************/
 295 void devman_usb_init
 296 (int (*_bind_cb)   (struct devman_usb_bind_cb_data *data, endpoint_t ep),
 297  int (*_unbind_cb) (struct devman_usb_bind_cb_data *data, endpoint_t ep))
 298 {
 299         bind_cb   = _bind_cb;
 300         unbind_cb = _unbind_cb;
 301 }