diff options
Diffstat (limited to 'scripts/omap4_usbboot/usb_linux.c')
-rw-r--r-- | scripts/omap4_usbboot/usb_linux.c | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/scripts/omap4_usbboot/usb_linux.c b/scripts/omap4_usbboot/usb_linux.c deleted file mode 100644 index 9a6e0b84d0..0000000000 --- a/scripts/omap4_usbboot/usb_linux.c +++ /dev/null @@ -1,397 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <string.h> - -#include <sys/ioctl.h> -#include <sys/types.h> -#include <dirent.h> -#include <fcntl.h> -#include <errno.h> -#include <pthread.h> -#include <ctype.h> - -#include <linux/usbdevice_fs.h> -#include <linux/usbdevice_fs.h> -#include <linux/version.h> -#include <linux/usb/ch9.h> -#include <asm/byteorder.h> - -#include "usb.h" - -#define MAX_RETRIES 2 - -#ifdef TRACE_USB -#define DBG1(x...) fprintf(stderr, x) -#define DBG(x...) fprintf(stderr, x) -#else -#define DBG(x...) -#define DBG1(x...) -#endif - -struct usb_handle { - char fname[64]; - int desc; - unsigned char ep_in; - unsigned char ep_out; -}; - -static inline int badname(const char *name) -{ - while (*name) { - if (!isdigit(*name++)) - return 1; - } - return 0; -} - -static int check(void *_desc, int len, unsigned type, int size) -{ - unsigned char *desc = _desc; - - if (len < size) - return -1; - if (desc[0] < size) - return -1; - if (desc[0] > len) - return -1; - if (desc[1] != type) - return -1; - - return 0; -} - -static int filter_usb_device(int fd, char *ptr, int len, int writable, - ifc_match_func callback, int *ept_in_id, int *ept_out_id, int *ifc_id) -{ - struct usb_device_descriptor *dev; - struct usb_config_descriptor *cfg; - struct usb_interface_descriptor *ifc; - struct usb_endpoint_descriptor *ept; - struct usb_ifc_info info; - - int in, out; - unsigned i; - unsigned e; - - if (check(ptr, len, USB_DT_DEVICE, USB_DT_DEVICE_SIZE)) - return -1; - dev = (void *) ptr; - len -= dev->bLength; - ptr += dev->bLength; - - if (check(ptr, len, USB_DT_CONFIG, USB_DT_CONFIG_SIZE)) - return -1; - cfg = (void *) ptr; - len -= cfg->bLength; - ptr += cfg->bLength; - - info.dev_vendor = dev->idVendor; - info.dev_product = dev->idProduct; - info.dev_class = dev->bDeviceClass; - info.dev_subclass = dev->bDeviceSubClass; - info.dev_protocol = dev->bDeviceProtocol; - info.writable = writable; - - /* read device serial number (if there is one) */ - info.serial_number[0] = 0; - if (dev->iSerialNumber) { - struct usbdevfs_ctrltransfer ctrl; - __u16 buffer[128]; - int result; - - memset(buffer, 0, sizeof(buffer)); - - ctrl.bRequestType = USB_DIR_IN| - USB_TYPE_STANDARD|USB_RECIP_DEVICE; - ctrl.bRequest = USB_REQ_GET_DESCRIPTOR; - ctrl.wValue = (USB_DT_STRING << 8) | dev->iSerialNumber; - ctrl.wIndex = 0; - ctrl.wLength = sizeof(buffer); - ctrl.data = buffer; - ctrl.timeout = 50; - - result = ioctl(fd, USBDEVFS_CONTROL, &ctrl); - if (result > 0) { - int i; - /* skip first word, and copy the rest to the serial - string, changing shorts to bytes. */ - result /= 2; - for (i = 1; i < result; i++) - info.serial_number[i - 1] = buffer[i]; - info.serial_number[i - 1] = 0; - } - } - - for (i = 0; i < cfg->bNumInterfaces; i++) { - if (check(ptr, len, USB_DT_INTERFACE, USB_DT_INTERFACE_SIZE)) - return -1; - ifc = (void *) ptr; - len -= ifc->bLength; - ptr += ifc->bLength; - - in = -1; - out = -1; - info.ifc_class = ifc->bInterfaceClass; - info.ifc_subclass = ifc->bInterfaceSubClass; - info.ifc_protocol = ifc->bInterfaceProtocol; - - for (e = 0; e < ifc->bNumEndpoints; e++) { - if (check(ptr, len, USB_DT_ENDPOINT, - USB_DT_ENDPOINT_SIZE) - ) - return -1; - ept = (void *) ptr; - len -= ept->bLength; - ptr += ept->bLength; - - if ((ept->bmAttributes & 0x03) != 0x02) - continue; - - if (ept->bEndpointAddress & 0x80) - in = ept->bEndpointAddress; - else - out = ept->bEndpointAddress; - } - - info.has_bulk_in = (in != -1); - info.has_bulk_out = (out != -1); - - if (callback(&info) == 0) { - *ept_in_id = in; - *ept_out_id = out; - *ifc_id = ifc->bInterfaceNumber; - return 0; - } - } - - return -1; -} - -static struct usb_handle *find_usb_device( - const char *base, ifc_match_func callback) -{ - struct usb_handle *usb = 0; - char busname[64], devname[64]; - char desc[1024]; - int n, in, out, ifc; - - DIR *busdir, *devdir; - struct dirent *de; - int fd; - int writable; - - busdir = opendir(base); - if (busdir == 0) - return 0; - - while ((de = readdir(busdir)) && (usb == 0)) { - if (badname(de->d_name)) - continue; - - sprintf(busname, "%s/%s", base, de->d_name); - devdir = opendir(busname); - if (devdir == 0) - continue; - - /* DBG("[ scanning %s ]\n", busname); */ - while ((de = readdir(devdir)) && (usb == 0)) { - - if (badname(de->d_name)) - continue; - sprintf(devname, "%s/%s", busname, de->d_name); - - /* DBG("[ scanning %s ]\n", devname); */ - writable = 1; - fd = open(devname, O_RDWR); - if (fd < 0) { - /* Check if we have read-only access, - so we can give a helpful diagnostic - like "adb devices" does. */ - writable = 0; - fd = open(devname, O_RDONLY); - if (fd < 0) - continue; - } - - n = read(fd, desc, sizeof(desc)); - - if (filter_usb_device(fd, desc, n, writable, - callback, &in, &out, &ifc) == 0 - ) { - usb = calloc(1, sizeof(struct usb_handle)); - strcpy(usb->fname, devname); - usb->ep_in = in; - usb->ep_out = out; - usb->desc = fd; - - n = ioctl(fd, USBDEVFS_CLAIMINTERFACE, &ifc); - if (n != 0) { - close(fd); - free(usb); - usb = 0; - continue; - } - } else - close(fd); - } - closedir(devdir); - } - closedir(busdir); - - return usb; -} - -int usb_write(struct usb_handle *h, const void *_data, int len) -{ - unsigned char *data = (unsigned char *) _data; - unsigned count = 0; - struct usbdevfs_bulktransfer bulk; - int n; - - if (h->ep_out == 0) - return -1; - - if (len == 0) { - bulk.ep = h->ep_out; - bulk.len = 0; - bulk.data = data; - bulk.timeout = 0; - - n = ioctl(h->desc, USBDEVFS_BULK, &bulk); - if (n != 0) { - fprintf(stderr, "ERROR: n = %d, errno = %d (%s)\n", - n, errno, strerror(errno)); - return -1; - } - return 0; - } - - while (len > 0) { - int xfer; - xfer = (len > 4096) ? 4096 : len; - - bulk.ep = h->ep_out; - bulk.len = xfer; - bulk.data = data; - bulk.timeout = 0; - - n = ioctl(h->desc, USBDEVFS_BULK, &bulk); - if (n != xfer) { - DBG("ERROR: n = %d, errno = %d (%s)\n", - n, errno, strerror(errno)); - return -1; - } - - count += xfer; - len -= xfer; - data += xfer; - } - - return count; -} - -int usb_read(struct usb_handle *h, void *_data, int len) -{ - unsigned char *data = (unsigned char *) _data; - unsigned count = 0; - struct usbdevfs_bulktransfer bulk; - int n, retry; - - if (h->ep_in == 0) - return -1; - - while (len > 0) { - int xfer = (len > 4096) ? 4096 : len; - - bulk.ep = h->ep_in; - bulk.len = xfer; - bulk.data = data; - bulk.timeout = 0; - retry = 0; - - do { - DBG("[ usb read %d fd = %d], fname=%s\n", - xfer, h->desc, h->fname); - n = ioctl(h->desc, USBDEVFS_BULK, &bulk); - DBG("[ usb read %d ] = %d, fname=%s, Retry %d\n", - xfer, n, h->fname, retry); - - if (n < 0) { - DBG1("ERROR: n = %d, errno = %d (%s)\n", - n, errno, strerror(errno)); - if (++retry > MAX_RETRIES) - return -1; - usleep(10000); - } - } while (n < 0); - - count += n; - len -= n; - data += n; - - if (n < xfer) - break; - } - - return count; -} - -void usb_kick(struct usb_handle *h) -{ - int fd; - - fd = h->desc; - h->desc = -1; - if (fd >= 0) { - close(fd); - DBG("[ usb closed %d ]\n", fd); - } -} - -int usb_close(struct usb_handle *h) -{ - int fd; - - fd = h->desc; - h->desc = -1; - if (fd >= 0) { - close(fd); - DBG("[ usb closed %d ]\n", fd); - } - - return 0; -} - -struct usb_handle *usb_open(ifc_match_func callback) -{ - return find_usb_device("/dev/bus/usb", callback); -} |