diff options
Diffstat (limited to 'extras/modem-modeswitch/option.c')
| -rw-r--r-- | extras/modem-modeswitch/option.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/extras/modem-modeswitch/option.c b/extras/modem-modeswitch/option.c deleted file mode 100644 index 5b299fd1bf..0000000000 --- a/extras/modem-modeswitch/option.c +++ /dev/null @@ -1,131 +0,0 @@ -/* - * Modem mode switcher - * - * Copyright (C) 2008 Dan Williams <dcbw@redhat.com> - * Copyright (C) 2008 Peter Henn <support@option.com> - * - * Heavily based on the 'ozerocdoff' tool by Peter Henn. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details: - */ - -#include <usb.h> - -#include "utils.h" -#include "option.h" - -/* Borrowed from /usr/include/linux/usb/ch9.h */ -#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */ -#define USB_ENDPOINT_XFER_BULK 2 -#define USB_ENDPOINT_DIR_MASK 0x80 -#define USB_DIR_OUT 0 /* to device */ -#define USB_DIR_IN 0x80 /* to host */ - -struct usb_device * -option_zerocd_find (int vid, int pid) -{ - struct usb_bus *bus; - struct usb_device *dev; - - for (bus = usb_get_busses(); bus; bus = bus->next) { - for (dev = bus->devices; dev; dev = dev->next) { - if (dev->descriptor.idVendor == vid && dev->descriptor.idProduct == pid) { - debug ("Found mass storage device:"); - debug (" Endpoints: %d", dev->config[0].interface[0].altsetting[0].bNumEndpoints); - debug (" Class: 0x%X", dev->config[0].interface[0].altsetting[0].bInterfaceClass); - debug (" SubClass: 0x%X", dev->config[0].interface[0].altsetting[0].bInterfaceSubClass); - debug (" Protocol: 0x%X", dev->config[0].interface[0].altsetting[0].bInterfaceProtocol); - - if ( (dev->config[0].interface[0].altsetting[0].bNumEndpoints == 2) - && (dev->config[0].interface[0].altsetting[0].bInterfaceClass == 0x08) - && (dev->config[0].interface[0].altsetting[0].bInterfaceSubClass == 0x06) - && (dev->config[0].interface[0].altsetting[0].bInterfaceProtocol == 0x50) ) { - debug ("Found modem mass storage device '%s'", dev->filename); - return dev; - } - } - } - } - return NULL; -} - -static int -find_endpoints (struct usb_device *dev, int *in_ep, int *out_ep) -{ - int i; - - for (i = 0; i < dev->config[0].interface[0].altsetting[0].bNumEndpoints; i++) { - struct usb_endpoint_descriptor *ep = &(dev->config[0].interface[0].altsetting[0].endpoint[i]); - - if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK) { - unsigned int direction = ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK; - - if (!*out_ep && (direction == USB_DIR_OUT)) - *out_ep = ep->bEndpointAddress; - else if (!*in_ep && (direction == USB_DIR_IN)) - *in_ep = ep->bEndpointAddress; - } - - if (*in_ep && *out_ep) - return 0; - } - - return -1; -} - -int -option_zerocd_switch (struct usb_dev_handle *dh, struct usb_device *dev) -{ - const char const rezero_cbw[] = { - 0x55, 0x53, 0x42, 0x43, /* bulk command signature (LE) */ - 0x78, 0x56, 0x34, 0x12, /* bulk command host tag */ - 0x01, 0x00, 0x00, 0x00, /* bulk command data transfer length (LE) */ - 0x80, /* flags: direction data-in */ - 0x00, /* LUN */ - 0x06, /* SCSI command length */ - 0x01, /* SCSI command: REZERO */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* filler */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - - int ret = -1, ep_in = 0, ep_out = 0; - char buffer[256]; - - /* Find the device's bulk in and out endpoints */ - if (find_endpoints (dev, &ep_in, &ep_out) < 0) { - debug ("%s: couldn't find correct USB endpoints.", dev->filename); - goto out; - } - - usb_clear_halt (dh, ep_out); - ret = usb_set_altinterface (dh, 0); - if (ret != 0) { - debug ("%s: couldn't set device alternate interface.", dev->filename); - goto out; - } - - /* Let the mass storage device settle */ - sleep (1); - - /* Send the modeswitch command */ - ret = usb_bulk_write (dh, ep_out, (char *) rezero_cbw, sizeof (rezero_cbw), 1000); - if (ret < 0) - return ret; - - debug ("%s: REZERO command sent.", dev->filename); - - /* Some devices need to be read from */ - ret = usb_bulk_read (dh, ep_in, buffer, sizeof (buffer), 1000); - -out: - return ret; -} - |