| 1 | /* |
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| 2 | * Linux specific functions |
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| 3 | * |
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| 4 | * Copyright (C) 2003 Olaf Kirch <okir@suse.de> |
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| 5 | * |
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| 6 | * These functions need to be re-implemented for every |
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| 7 | * new platform. |
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| 8 | */ |
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| 9 | |
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| 10 | #include "internal.h" |
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| 11 | #if defined (__linux__) && !defined (sunray) |
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| 12 | #include <sys/types.h> |
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| 13 | #include <sys/sysmacros.h> |
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| 14 | #include <sys/stat.h> |
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| 15 | #include <sys/ioctl.h> |
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| 16 | #include <sys/poll.h> |
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| 17 | #include <sys/types.h> |
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| 18 | #include <sys/stat.h> |
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| 19 | #include <sys/file.h> |
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| 20 | #include <dirent.h> |
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| 21 | #include <string.h> |
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| 22 | #include <stdio.h> |
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| 23 | #include <stdarg.h> |
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| 24 | #include <signal.h> |
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| 25 | #include <stdlib.h> |
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| 26 | #include <unistd.h> |
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| 27 | #include <fcntl.h> |
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| 28 | #include <errno.h> |
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| 29 | #include <limits.h> |
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| 30 | #ifdef ENABLE_LIBUSB |
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| 31 | #include <usb.h> |
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| 32 | #endif |
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| 33 | #include <openct/driver.h> |
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| 34 | |
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| 35 | /* imported from linux kernel header include/linux/usbdevice_fs.h */ |
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| 36 | |
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| 37 | #define USBDEVICE_SUPER_MAGIC 0x9fa2 |
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| 38 | |
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| 39 | /* usbdevfs ioctl codes */ |
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| 40 | |
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| 41 | struct usbdevfs_ctrltransfer { |
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| 42 | uint8_t bRequestType; |
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| 43 | uint8_t bRequest; |
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| 44 | uint16_t wValue; |
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| 45 | uint16_t wIndex; |
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| 46 | uint16_t wLength; |
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| 47 | uint32_t timeout; /* in milliseconds */ |
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| 48 | void *data; |
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| 49 | }; |
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| 50 | |
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| 51 | struct usbdevfs_bulktransfer { |
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| 52 | unsigned int ep; |
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| 53 | unsigned int len; |
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| 54 | unsigned int timeout; /* in milliseconds */ |
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| 55 | void *data; |
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| 56 | }; |
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| 57 | |
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| 58 | struct usbdevfs_setinterface { |
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| 59 | unsigned int interface; |
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| 60 | unsigned int altsetting; |
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| 61 | }; |
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| 62 | |
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| 63 | struct usbdevfs_disconnectsignal { |
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| 64 | unsigned int signr; |
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| 65 | void *context; |
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| 66 | }; |
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| 67 | |
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| 68 | #define USBDEVFS_MAXDRIVERNAME 255 |
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| 69 | |
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| 70 | struct usbdevfs_getdriver { |
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| 71 | unsigned int interface; |
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| 72 | char driver[USBDEVFS_MAXDRIVERNAME + 1]; |
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| 73 | }; |
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| 74 | |
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| 75 | struct usbdevfs_connectinfo { |
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| 76 | unsigned int devnum; |
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| 77 | unsigned char slow; |
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| 78 | }; |
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| 79 | |
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| 80 | #define USBDEVFS_URB_SHORT_NOT_OK 1 |
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| 81 | #define USBDEVFS_URB_ISO_ASAP 2 |
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| 82 | |
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| 83 | #define USBDEVFS_URB_TYPE_ISO 0 |
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| 84 | #define USBDEVFS_URB_TYPE_INTERRUPT 1 |
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| 85 | #define USBDEVFS_URB_TYPE_CONTROL 2 |
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| 86 | #define USBDEVFS_URB_TYPE_BULK 3 |
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| 87 | |
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| 88 | struct usbdevfs_iso_packet_desc { |
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| 89 | unsigned int length; |
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| 90 | unsigned int actual_length; |
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| 91 | unsigned int status; |
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| 92 | }; |
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| 93 | |
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| 94 | struct usbdevfs_urb { |
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| 95 | unsigned char type; |
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| 96 | unsigned char endpoint; |
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| 97 | int status; |
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| 98 | unsigned int flags; |
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| 99 | void *buffer; |
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| 100 | int buffer_length; |
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| 101 | int actual_length; |
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| 102 | int start_frame; |
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| 103 | int number_of_packets; |
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| 104 | int error_count; |
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| 105 | unsigned int signr; /* signal to be sent on error, -1 if none should be sent */ |
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| 106 | void *usercontext; |
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| 107 | struct usbdevfs_iso_packet_desc iso_frame_desc[0]; |
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| 108 | }; |
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| 109 | |
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| 110 | /* ioctls for talking directly to drivers */ |
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| 111 | struct usbdevfs_ioctl { |
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| 112 | int ifno; /* interface 0..N ; negative numbers reserved */ |
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| 113 | int ioctl_code; /* MUST encode size + direction of data so the |
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| 114 | * macros in <asm/ioctl.h> give correct values */ |
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| 115 | void *data; /* param buffer (in, or out) */ |
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| 116 | }; |
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| 117 | |
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| 118 | /* You can do most things with hubs just through control messages, |
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| 119 | * except find out what device connects to what port. */ |
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| 120 | struct usbdevfs_hub_portinfo { |
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| 121 | char nports; /* number of downstream ports in this hub */ |
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| 122 | char port [127]; /* e.g. port 3 connects to device 27 */ |
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| 123 | }; |
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| 124 | |
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| 125 | #define USBDEVFS_CONTROL _IOWR('U', 0, struct usbdevfs_ctrltransfer) |
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| 126 | #define USBDEVFS_BULK _IOWR('U', 2, struct usbdevfs_bulktransfer) |
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| 127 | #define USBDEVFS_RESETEP _IOR('U', 3, unsigned int) |
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| 128 | #define USBDEVFS_SETINTERFACE _IOR('U', 4, struct usbdevfs_setinterface) |
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| 129 | #define USBDEVFS_SETCONFIGURATION _IOR('U', 5, unsigned int) |
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| 130 | #define USBDEVFS_GETDRIVER _IOW('U', 8, struct usbdevfs_getdriver) |
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| 131 | #define USBDEVFS_SUBMITURB _IOR('U', 10, struct usbdevfs_urb) |
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| 132 | #define USBDEVFS_DISCARDURB _IO('U', 11) |
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| 133 | #define USBDEVFS_REAPURB _IOW('U', 12, void *) |
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| 134 | #define USBDEVFS_REAPURBNDELAY _IOW('U', 13, void *) |
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| 135 | #define USBDEVFS_DISCSIGNAL _IOR('U', 14, struct usbdevfs_disconnectsignal) |
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| 136 | #define USBDEVFS_CLAIMINTERFACE _IOR('U', 15, unsigned int) |
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| 137 | #define USBDEVFS_RELEASEINTERFACE _IOR('U', 16, unsigned int) |
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| 138 | #define USBDEVFS_CONNECTINFO _IOW('U', 17, struct usbdevfs_connectinfo) |
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| 139 | #define USBDEVFS_IOCTL _IOWR('U', 18, struct usbdevfs_ioctl) |
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| 140 | #define USBDEVFS_HUB_PORTINFO _IOR('U', 19, struct usbdevfs_hub_portinfo) |
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| 141 | #define USBDEVFS_RESET _IO('U', 20) |
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| 142 | #define USBDEVFS_CLEAR_HALT _IOR('U', 21, unsigned int) |
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| 143 | #define USBDEVFS_DISCONNECT _IO('U', 22) |
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| 144 | #define USBDEVFS_CONNECT _IO('U', 23) |
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| 145 | |
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| 146 | /* end of import from usbdevice_fs.h */ |
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| 147 | |
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| 148 | #define USB_DISCONNECT_SIGNAL (SIGRTMIN) |
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| 149 | |
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| 150 | /* |
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| 151 | * Poll for presence of USB device |
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| 152 | */ |
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| 153 | int ifd_sysdep_usb_poll_presence(ifd_device_t * dev, struct pollfd *pfd) |
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| 154 | { |
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| 155 | if (pfd->revents & POLLHUP) |
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| 156 | return 0; |
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| 157 | pfd->fd = dev->fd; |
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| 158 | pfd->events = POLLHUP; |
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| 159 | return 1; |
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| 160 | } |
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| 161 | |
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| 162 | /* |
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| 163 | * Event fd to use. |
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| 164 | */ |
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| 165 | int ifd_sysdep_usb_get_eventfd(ifd_device_t * dev, short *events) |
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| 166 | { |
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| 167 | *events = POLLOUT; |
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| 168 | return dev->fd; |
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| 169 | } |
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| 170 | |
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| 171 | /* |
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| 172 | * USB control command |
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| 173 | */ |
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| 174 | int ifd_sysdep_usb_control(ifd_device_t * dev, unsigned int requesttype, |
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| 175 | unsigned int request, unsigned int value, |
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| 176 | unsigned int idx, void *data, size_t len, |
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| 177 | long timeout) |
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| 178 | { |
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| 179 | struct usbdevfs_ctrltransfer ctrl; |
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| 180 | int rc; |
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| 181 | |
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| 182 | ctrl.bRequestType = requesttype; |
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| 183 | ctrl.bRequest = request; |
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| 184 | ctrl.wValue = value; |
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| 185 | ctrl.wIndex = idx; |
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| 186 | ctrl.wLength = len; |
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| 187 | ctrl.data = data; |
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| 188 | ctrl.timeout = timeout; |
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| 189 | |
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| 190 | if ((rc = ioctl(dev->fd, USBDEVFS_CONTROL, &ctrl)) < 0) { |
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| 191 | ct_error("usb_control failed: %m"); |
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| 192 | return IFD_ERROR_COMM_ERROR; |
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| 193 | } |
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| 194 | |
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| 195 | return rc; |
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| 196 | } |
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| 197 | |
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| 198 | int ifd_sysdep_usb_set_configuration(ifd_device_t * dev, int config) |
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| 199 | { |
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| 200 | if (ioctl(dev->fd, USBDEVFS_SETCONFIGURATION, &config) < 0) { |
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| 201 | ct_error("usb_setconfig failed: %m"); |
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| 202 | return IFD_ERROR_COMM_ERROR; |
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| 203 | } |
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| 204 | return 0; |
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| 205 | } |
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| 206 | |
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| 207 | int ifd_sysdep_usb_set_interface(ifd_device_t * dev, int ifc, int alt) |
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| 208 | { |
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| 209 | struct usbdevfs_setinterface set; |
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| 210 | |
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| 211 | set.interface = ifc; |
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| 212 | set.altsetting = alt; |
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| 213 | if (ioctl(dev->fd, USBDEVFS_SETINTERFACE, &set) < 0) { |
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| 214 | ct_error("usb_setinterface failed: %m"); |
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| 215 | return IFD_ERROR_COMM_ERROR; |
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| 216 | } |
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| 217 | return 0; |
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| 218 | } |
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| 219 | |
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| 220 | int ifd_sysdep_usb_claim_interface(ifd_device_t * dev, int interface) |
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| 221 | { |
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| 222 | if (ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface) < 0) { |
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| 223 | ct_error("usb_claiminterface failed: %m"); |
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| 224 | return IFD_ERROR_COMM_ERROR; |
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| 225 | } |
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| 226 | return 0; |
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| 227 | } |
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| 228 | |
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| 229 | int ifd_sysdep_usb_release_interface(ifd_device_t * dev, int interface) |
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| 230 | { |
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| 231 | if (ioctl(dev->fd, USBDEVFS_RELEASEINTERFACE, &interface) < 0) { |
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| 232 | ct_error("usb_releaseinterface failed: %m"); |
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| 233 | return IFD_ERROR_COMM_ERROR; |
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| 234 | } |
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| 235 | return 0; |
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| 236 | } |
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| 237 | |
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| 238 | int ifd_sysdep_usb_reset(ifd_device_t * dev) |
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| 239 | { |
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| 240 | if (ioctl(dev->fd, USBDEVFS_RESET, NULL) < 0) { |
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| 241 | ct_error("usb_reset failed: %m"); |
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| 242 | return IFD_ERROR_COMM_ERROR; |
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| 243 | } |
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| 244 | return 0; |
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| 245 | } |
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| 246 | |
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| 247 | /* |
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| 248 | * USB bulk transfer |
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| 249 | */ |
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| 250 | int ifd_sysdep_usb_bulk(ifd_device_t * dev, int ep, void *buffer, size_t len, |
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| 251 | long timeout) |
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| 252 | { |
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| 253 | struct usbdevfs_bulktransfer bulk; |
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| 254 | int rc; |
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| 255 | |
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| 256 | bulk.ep = ep; |
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| 257 | bulk.data = buffer; |
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| 258 | bulk.len = len; |
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| 259 | bulk.timeout = timeout; |
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| 260 | if ((rc = ioctl(dev->fd, USBDEVFS_BULK, &bulk)) < 0) { |
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| 261 | ct_error("usb_bulk failed: %m"); |
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| 262 | return IFD_ERROR_COMM_ERROR; |
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| 263 | } |
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| 264 | |
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| 265 | return rc; |
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| 266 | } |
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| 267 | |
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| 268 | /* |
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| 269 | * USB URB capture |
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| 270 | */ |
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| 271 | struct ifd_usb_capture { |
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| 272 | struct usbdevfs_urb urb; |
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| 273 | int type; |
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| 274 | int endpoint; |
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| 275 | size_t maxpacket; |
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| 276 | }; |
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| 277 | |
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| 278 | static int usb_submit_urb(int fd, struct ifd_usb_capture *cap) |
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| 279 | { |
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| 280 | /* Fill in the URB details */ |
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| 281 | ifd_debug(6, "submit urb %p", &cap->urb); |
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| 282 | memset(&cap->urb, 0, sizeof(cap->urb)); |
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| 283 | cap->urb.type = cap->type; |
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| 284 | cap->urb.endpoint = cap->endpoint; |
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| 285 | cap->urb.buffer = (caddr_t) (cap + 1); |
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| 286 | cap->urb.buffer_length = cap->maxpacket; |
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| 287 | return ioctl(fd, USBDEVFS_SUBMITURB, &cap->urb); |
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| 288 | } |
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| 289 | |
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| 290 | int ifd_sysdep_usb_begin_capture(ifd_device_t * dev, int type, int endpoint, |
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| 291 | size_t maxpacket, ifd_usb_capture_t ** capret) |
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| 292 | { |
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| 293 | ifd_usb_capture_t *cap; |
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| 294 | |
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| 295 | cap = (ifd_usb_capture_t *) calloc(1, sizeof(*cap) + maxpacket); |
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| 296 | if (!cap) { |
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| 297 | ct_error("out of memory"); |
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| 298 | return IFD_ERROR_NO_MEMORY; |
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| 299 | } |
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| 300 | |
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| 301 | cap->type = type; |
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| 302 | cap->endpoint = endpoint; |
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| 303 | cap->maxpacket = maxpacket; |
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| 304 | |
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| 305 | if (usb_submit_urb(dev->fd, cap) < 0) { |
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| 306 | ct_error("usb_submiturb failed: %m"); |
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| 307 | ifd_sysdep_usb_end_capture(dev, cap); |
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| 308 | return IFD_ERROR_COMM_ERROR; |
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| 309 | } |
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| 310 | |
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| 311 | *capret = cap; |
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| 312 | return 0; |
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| 313 | } |
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| 314 | |
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| 315 | int ifd_sysdep_usb_capture_event(ifd_device_t * dev, ifd_usb_capture_t * cap, |
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| 316 | void *buffer, size_t len) |
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| 317 | { |
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| 318 | struct usbdevfs_urb *purb; |
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| 319 | size_t copied = 0; |
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| 320 | int rc = 0; |
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| 321 | |
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| 322 | purb = NULL; |
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| 323 | rc = ioctl(dev->fd, USBDEVFS_REAPURBNDELAY, &purb); |
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| 324 | if (rc < 0) { |
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| 325 | if (errno == EAGAIN) |
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| 326 | return 0; |
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| 327 | ct_error("usb_reapurb failed: %m"); |
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| 328 | return IFD_ERROR_COMM_ERROR; |
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| 329 | } |
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| 330 | |
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| 331 | if (purb != &cap->urb) { |
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| 332 | ifd_debug(2, "reaped usb urb %p", purb); |
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| 333 | return 0; |
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| 334 | } |
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| 335 | |
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| 336 | if (purb->status == -1) { |
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| 337 | return IFD_ERROR_COMM_ERROR; |
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| 338 | } |
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| 339 | |
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| 340 | if (purb->actual_length) { |
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| 341 | ifd_debug(6, "usb reapurb: len=%u", |
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| 342 | purb->actual_length); |
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| 343 | if ((copied = purb->actual_length) > len) |
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| 344 | copied = len; |
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| 345 | if (copied && buffer) |
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| 346 | memcpy(buffer, purb->buffer, copied); |
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| 347 | } |
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| 348 | else { |
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| 349 | usleep(10000); |
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| 350 | } |
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| 351 | |
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| 352 | /* Re-submit URB */ |
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| 353 | usb_submit_urb(dev->fd, cap); |
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| 354 | |
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| 355 | return copied; |
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| 356 | } |
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| 357 | |
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| 358 | int ifd_sysdep_usb_capture(ifd_device_t * dev, ifd_usb_capture_t * cap, |
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| 359 | void *buffer, size_t len, long timeout) |
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| 360 | { |
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| 361 | struct timeval begin; |
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| 362 | size_t copied; |
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| 363 | int rc = 0; |
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| 364 | |
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| 365 | /* Loop until we've reaped the response to the |
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| 366 | * URB we sent */ |
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| 367 | copied = 0; |
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| 368 | gettimeofday(&begin, NULL); |
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| 369 | do { |
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| 370 | struct pollfd pfd; |
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| 371 | long wait; |
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| 372 | |
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| 373 | if ((wait = timeout - ifd_time_elapsed(&begin)) <= 0) |
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| 374 | return IFD_ERROR_TIMEOUT; |
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| 375 | |
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| 376 | pfd.fd = dev->fd; |
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| 377 | pfd.events = POLLOUT; |
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| 378 | if (poll(&pfd, 1, wait) != 1) |
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| 379 | continue; |
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| 380 | |
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| 381 | rc = ifd_sysdep_usb_capture_event(dev, cap, buffer, len); |
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| 382 | if (rc < 0) { |
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| 383 | return rc; |
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| 384 | } |
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| 385 | copied = (size_t)rc; |
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| 386 | } while (!copied); |
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| 387 | |
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| 388 | return copied; |
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| 389 | } |
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| 390 | |
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| 391 | int ifd_sysdep_usb_end_capture(ifd_device_t * dev, ifd_usb_capture_t * cap) |
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| 392 | { |
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| 393 | int rc = 0; |
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| 394 | |
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| 395 | if (ioctl(dev->fd, USBDEVFS_DISCARDURB, &cap->urb) < 0 |
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| 396 | && errno != EINVAL) { |
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| 397 | ct_error("usb_discardurb failed: %m"); |
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| 398 | rc = IFD_ERROR_COMM_ERROR; |
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| 399 | } |
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| 400 | /* Discarding an URB will place it in the queue of completed |
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| 401 | * request, with urb->status == -1. So if we don't reap this |
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| 402 | * URB now, the next call to REAPURB will return this one, |
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| 403 | * clobbering random memory. |
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| 404 | */ |
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| 405 | (void)ioctl(dev->fd, USBDEVFS_REAPURBNDELAY, &cap->urb); |
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| 406 | free(cap); |
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| 407 | return rc; |
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| 408 | } |
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| 409 | |
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| 410 | int ifd_sysdep_usb_open(const char *device) |
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| 411 | { |
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| 412 | struct usbdevfs_disconnectsignal ds; |
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| 413 | struct sigaction act; |
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| 414 | int fd = -1; |
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| 415 | int ret = -1; |
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| 416 | |
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| 417 | fd = open(device, O_RDWR); |
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| 418 | if (fd == -1) { |
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| 419 | goto cleanup; |
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| 420 | } |
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| 421 | |
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| 422 | /* |
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| 423 | * The following will send signal |
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| 424 | * to the process when device is disconnected |
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| 425 | * even if the signal is ignored the blocking |
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| 426 | * call will exit. |
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| 427 | * <linux.2.6.28 - This code will have no affect. |
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| 428 | * =linux-2.6.28 - CONFIG_USB_DEVICEFS must be on. |
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| 429 | * >=linux-2.6.29 - works. |
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| 430 | */ |
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| 431 | memset(&act, 0, sizeof(act)); |
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| 432 | act.sa_handler = SIG_IGN; |
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| 433 | if (sigaction(USB_DISCONNECT_SIGNAL, &act, NULL) == -1) { |
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| 434 | goto cleanup; |
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| 435 | } |
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| 436 | |
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| 437 | memset(&ds, 0, sizeof(ds)); |
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| 438 | ds.signr = USB_DISCONNECT_SIGNAL; |
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| 439 | if (ioctl(fd, USBDEVFS_DISCSIGNAL, &ds) == -1) { |
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| 440 | goto cleanup; |
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| 441 | } |
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| 442 | |
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| 443 | ret = fd; |
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| 444 | fd = -1; |
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| 445 | |
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| 446 | cleanup: |
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| 447 | if (fd != -1) { |
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| 448 | close(fd); |
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| 449 | } |
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| 450 | |
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| 451 | return ret; |
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| 452 | } |
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| 453 | |
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| 454 | #ifndef ENABLE_LIBUSB |
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| 455 | static int read_number (const char *read_format, const char *format, ...) { |
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| 456 | va_list args; |
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| 457 | char full[PATH_MAX]; |
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| 458 | FILE *fp = NULL; |
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| 459 | int n = -1; |
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| 460 | |
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| 461 | va_start(args, format); |
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| 462 | vsnprintf (full, sizeof(full), format, args); |
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| 463 | va_end(args); |
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| 464 | |
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| 465 | if ((fp = fopen (full, "r")) == NULL) { |
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| 466 | goto out; |
|---|
| 467 | } |
|---|
| 468 | |
|---|
| 469 | fscanf (fp, read_format, &n); |
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| 470 | |
|---|
| 471 | out: |
|---|
| 472 | if (fp != NULL) { |
|---|
| 473 | fclose (fp); |
|---|
| 474 | } |
|---|
| 475 | |
|---|
| 476 | return n; |
|---|
| 477 | } |
|---|
| 478 | #endif |
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| 479 | |
|---|
| 480 | /* |
|---|
| 481 | * Scan all usb devices to see if there is one we support |
|---|
| 482 | */ |
|---|
| 483 | int ifd_scan_usb(void) |
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| 484 | { |
|---|
| 485 | #ifdef ENABLE_LIBUSB |
|---|
| 486 | ifd_devid_t id; |
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| 487 | struct usb_bus *bus; |
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| 488 | struct usb_device *dev; |
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| 489 | |
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| 490 | usb_init(); |
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| 491 | usb_find_busses(); |
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| 492 | usb_find_devices(); |
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| 493 | |
|---|
| 494 | id.type = IFD_DEVICE_TYPE_USB; |
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| 495 | id.num = 2; |
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| 496 | for (bus = usb_busses; bus; bus = bus->next) { |
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| 497 | for (dev = bus->devices; dev; dev = dev->next) { |
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| 498 | const char *driver = NULL; |
|---|
| 499 | char typedev[PATH_MAX]; |
|---|
| 500 | struct stat buf; |
|---|
| 501 | |
|---|
| 502 | id.val[0] = dev->descriptor.idVendor; |
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| 503 | id.val[1] = dev->descriptor.idProduct; |
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| 504 | |
|---|
| 505 | /* if we don't find a driver with vendor/product |
|---|
| 506 | * then check for the interface type (ccid) and use |
|---|
| 507 | * driver ccid... */ |
|---|
| 508 | |
|---|
| 509 | if (!(driver = ifd_driver_for_id(&id))) { |
|---|
| 510 | /* no driver found, check for interface class */ |
|---|
| 511 | int conf; |
|---|
| 512 | for (conf = 0; conf < dev->descriptor.bNumConfigurations; |
|---|
| 513 | conf++) { |
|---|
| 514 | int interf; |
|---|
| 515 | for (interf = 0; interf < dev->config[conf].bNumInterfaces; |
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| 516 | interf++) { |
|---|
| 517 | int alt; |
|---|
| 518 | for (alt = 0; alt < dev->config[conf].interface[interf].num_altsetting; alt++) { |
|---|
| 519 | if (dev->config[conf].interface[interf].altsetting[alt].bInterfaceClass == 0x0b) { |
|---|
| 520 | driver = "ccid"; |
|---|
| 521 | } |
|---|
| 522 | } |
|---|
| 523 | } |
|---|
| 524 | } |
|---|
| 525 | } |
|---|
| 526 | |
|---|
| 527 | if (driver != NULL) { |
|---|
| 528 | snprintf(typedev, sizeof(typedev), |
|---|
| 529 | "/dev/bus/usb/%s/%s", |
|---|
| 530 | bus->dirname, dev->filename); |
|---|
| 531 | if (stat(typedev, &buf) == 0) { |
|---|
| 532 | snprintf(typedev, sizeof(typedev), |
|---|
| 533 | "usb:/dev/bus/usb/%s/%s", |
|---|
| 534 | bus->dirname, dev->filename); |
|---|
| 535 | ifd_spawn_handler(driver, typedev, -1); |
|---|
| 536 | } else { |
|---|
| 537 | snprintf(typedev, sizeof(typedev), |
|---|
| 538 | "usb:/proc/bus/usb/%s/%s", |
|---|
| 539 | bus->dirname, dev->filename); |
|---|
| 540 | ifd_spawn_handler(driver, typedev, -1); |
|---|
| 541 | } |
|---|
| 542 | } |
|---|
| 543 | } |
|---|
| 544 | } |
|---|
| 545 | #else |
|---|
| 546 | const char *base = "/sys/bus/usb/devices"; |
|---|
| 547 | DIR *dir = NULL; |
|---|
| 548 | struct dirent *ent; |
|---|
| 549 | |
|---|
| 550 | if ((dir = opendir (base)) == NULL) { |
|---|
| 551 | goto out; |
|---|
| 552 | } |
|---|
| 553 | |
|---|
| 554 | while ((ent = readdir (dir)) != NULL) { |
|---|
| 555 | if (ent->d_name[0] != '.') { |
|---|
| 556 | int idProduct = -1; |
|---|
| 557 | int idVendor = -1; |
|---|
| 558 | int busnum = -1; |
|---|
| 559 | int devnum = -1; |
|---|
| 560 | |
|---|
| 561 | idProduct = read_number ("%x", "%s/%s/%s", base, ent->d_name, "idProduct"); |
|---|
| 562 | idVendor = read_number ("%x", "%s/%s/%s", base, ent->d_name, "idVendor"); |
|---|
| 563 | busnum = read_number ("%d", "%s/%s/%s", base, ent->d_name, "busnum"); |
|---|
| 564 | devnum = read_number ("%d", "%s/%s/%s", base, ent->d_name, "devnum"); |
|---|
| 565 | |
|---|
| 566 | ifd_debug (6, "coldplug: %s usb: %04x:%04x bus: %03d:%03d\n", ent->d_name, idProduct, idVendor, busnum, devnum); |
|---|
| 567 | |
|---|
| 568 | if (idProduct != -1 && idVendor != -1 && busnum != -1 && devnum != -1) { |
|---|
| 569 | const char *driver = NULL; |
|---|
| 570 | ifd_devid_t id; |
|---|
| 571 | |
|---|
| 572 | id.type = IFD_DEVICE_TYPE_USB; |
|---|
| 573 | id.num = 2; |
|---|
| 574 | id.val[0] = idVendor; |
|---|
| 575 | id.val[1] = idProduct; |
|---|
| 576 | |
|---|
| 577 | if ((driver = ifd_driver_for_id(&id)) == NULL) { |
|---|
| 578 | DIR *dir1 = NULL; |
|---|
| 579 | struct dirent *ent1; |
|---|
| 580 | |
|---|
| 581 | if ((dir1 = opendir (base)) != NULL) { |
|---|
| 582 | while ((ent1 = readdir (dir1)) != NULL && driver == NULL) { |
|---|
| 583 | /* skip all none bus elements */ |
|---|
| 584 | if (strncmp (ent->d_name, ent1->d_name, strlen (ent->d_name))) { |
|---|
| 585 | continue; |
|---|
| 586 | } |
|---|
| 587 | |
|---|
| 588 | if ( |
|---|
| 589 | read_number ( |
|---|
| 590 | "%x", |
|---|
| 591 | "%s/%s/%s/%s", |
|---|
| 592 | base, |
|---|
| 593 | ent->d_name, |
|---|
| 594 | ent1->d_name, |
|---|
| 595 | "bInterfaceClass" |
|---|
| 596 | ) == 0x0b |
|---|
| 597 | ) { |
|---|
| 598 | driver = "ccid"; |
|---|
| 599 | } |
|---|
| 600 | } |
|---|
| 601 | closedir (dir1); |
|---|
| 602 | } |
|---|
| 603 | } |
|---|
| 604 | |
|---|
| 605 | if (driver != NULL) { |
|---|
| 606 | char typedev[1024]; |
|---|
| 607 | |
|---|
| 608 | snprintf(typedev, sizeof(typedev), |
|---|
| 609 | "usb:/dev/bus/usb/%03d/%03d", |
|---|
| 610 | busnum, devnum); |
|---|
| 611 | ifd_spawn_handler(driver, typedev, -1); |
|---|
| 612 | } |
|---|
| 613 | } |
|---|
| 614 | } |
|---|
| 615 | } |
|---|
| 616 | |
|---|
| 617 | out: |
|---|
| 618 | if (dir != NULL) { |
|---|
| 619 | closedir (dir); |
|---|
| 620 | } |
|---|
| 621 | #endif |
|---|
| 622 | return 0; |
|---|
| 623 | } |
|---|
| 624 | |
|---|
| 625 | #endif /* __linux__ */ |
|---|