kernel/tools/usb/usbip/libsrc/usbip_common.h

   1 /*
   2  * Copyright (C) 2005-2007 Takahiro Hirofuchi
   3  */
   4
   5 #ifndef __USBIP_COMMON_H
   6 #define __USBIP_COMMON_H
   7
   8 #include <libudev.h>
   9
  10 #include <stdint.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14
  15 #include <syslog.h>
  16 #include <unistd.h>
  17 #include <linux/usb/ch9.h>
  18 #include <linux/usbip.h>
  19
  20 #ifndef USBIDS_FILE
  21 #define USBIDS_FILE "/usr/share/hwdata/usb.ids"
  22 #endif
  23
  24 #ifndef VHCI_STATE_PATH
  25 #define VHCI_STATE_PATH "/var/run/vhci_hcd"
  26 #endif
  27
  28 /* kernel module names */
  29 #define USBIP_CORE_MOD_NAME     "usbip-core"
  30 #define USBIP_HOST_DRV_NAME     "usbip-host"
  31 #define USBIP_VHCI_DRV_NAME     "vhci_hcd"
  32
  33 /* sysfs constants */
  34 #define SYSFS_MNT_PATH         "/sys"
  35 #define SYSFS_BUS_NAME         "bus"
  36 #define SYSFS_BUS_TYPE         "usb"
  37 #define SYSFS_DRIVERS_NAME     "drivers"
  38
  39 #define SYSFS_PATH_MAX          256
  40 #define SYSFS_BUS_ID_SIZE       32
  41
  42 extern int usbip_use_syslog;
  43 extern int usbip_use_stderr;
  44 extern int usbip_use_debug ;
  45
  46 #define PROGNAME "usbip"
  47
  48 #define pr_fmt(fmt)     "%s: %s: " fmt "\n", PROGNAME
  49 #define dbg_fmt(fmt)    pr_fmt("%s:%d:[%s] " fmt), "debug",     \
  50                         __FILE__, __LINE__, __func__
  51
  52 #define err(fmt, args...)                                               \
  53         do {                                                            \
  54                 if (usbip_use_syslog) {                                 \
  55                         syslog(LOG_ERR, pr_fmt(fmt), "error", ##args);  \
  56                 }                                                       \
  57                 if (usbip_use_stderr) {                                 \
  58                         fprintf(stderr, pr_fmt(fmt), "error", ##args);  \
  59                 }                                                       \
  60         } while (0)
  61
  62 #define info(fmt, args...)                                              \
  63         do {                                                            \
  64                 if (usbip_use_syslog) {                                 \
  65                         syslog(LOG_INFO, pr_fmt(fmt), "info", ##args);  \
  66                 }                                                       \
  67                 if (usbip_use_stderr) {                                 \
  68                         fprintf(stderr, pr_fmt(fmt), "info", ##args);   \
  69                 }                                                       \
  70         } while (0)
  71
  72 #define dbg(fmt, args...)                                               \
  73         do {                                                            \
  74         if (usbip_use_debug) {                                          \
  75                 if (usbip_use_syslog) {                                 \
  76                         syslog(LOG_DEBUG, dbg_fmt(fmt), ##args);        \
  77                 }                                                       \
  78                 if (usbip_use_stderr) {                                 \
  79                         fprintf(stderr, dbg_fmt(fmt), ##args);          \
  80                 }                                                       \
  81         }                                                               \
  82         } while (0)
  83
  84 #define BUG()                                           \
  85         do {                                            \
  86                 err("sorry, it's a bug!");              \
  87                 abort();                                \
  88         } while (0)
  89
  90 struct usbip_usb_interface {
  91         uint8_t bInterfaceClass;
  92         uint8_t bInterfaceSubClass;
  93         uint8_t bInterfaceProtocol;
  94         uint8_t padding;        /* alignment */
  95 } __attribute__((packed));
  96
  97 struct usbip_usb_device {
  98         char path[SYSFS_PATH_MAX];
  99         char busid[SYSFS_BUS_ID_SIZE];
 100
 101         uint32_t busnum;
 102         uint32_t devnum;
 103         uint32_t speed;
 104
 105         uint16_t idVendor;
 106         uint16_t idProduct;
 107         uint16_t bcdDevice;
 108
 109         uint8_t bDeviceClass;
 110         uint8_t bDeviceSubClass;
 111         uint8_t bDeviceProtocol;
 112         uint8_t bConfigurationValue;
 113         uint8_t bNumConfigurations;
 114         uint8_t bNumInterfaces;
 115 } __attribute__((packed));
 116
 117 #define to_string(s)    #s
 118
 119 void dump_usb_interface(struct usbip_usb_interface *);
 120 void dump_usb_device(struct usbip_usb_device *);
 121 int read_usb_device(struct udev_device *sdev, struct usbip_usb_device *udev);
 122 int read_attr_value(struct udev_device *dev, const char *name,
 123                     const char *format);
 124 int read_usb_interface(struct usbip_usb_device *udev, int i,
 125                        struct usbip_usb_interface *uinf);
 126
 127 const char *usbip_speed_string(int num);
 128 const char *usbip_status_string(int32_t status);
 129
 130 int usbip_names_init(char *);
 131 void usbip_names_free(void);
 132 void usbip_names_get_product(char *buff, size_t size, uint16_t vendor,
 133                              uint16_t product);
 134 void usbip_names_get_class(char *buff, size_t size, uint8_t class,
 135                            uint8_t subclass, uint8_t protocol);
 136
 137 #endif /* __USBIP_COMMON_H */