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Diffstat (limited to 'minadbd/usb_linux_client.c')
-rw-r--r--minadbd/usb_linux_client.c493
1 files changed, 0 insertions, 493 deletions
diff --git a/minadbd/usb_linux_client.c b/minadbd/usb_linux_client.c
deleted file mode 100644
index 29bab1558..000000000
--- a/minadbd/usb_linux_client.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <linux/usb/ch9.h>
-#include <linux/usb/functionfs.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <dirent.h>
-#include <errno.h>
-
-#include "sysdeps.h"
-
-#define TRACE_TAG TRACE_USB
-#include "adb.h"
-
-#define MAX_PACKET_SIZE_FS 64
-#define MAX_PACKET_SIZE_HS 512
-
-#define cpu_to_le16(x) htole16(x)
-#define cpu_to_le32(x) htole32(x)
-
-struct usb_handle
-{
- int fd;
- adb_cond_t notify;
- adb_mutex_t lock;
-
- int (*write)(usb_handle *h, const void *data, int len);
- int (*read)(usb_handle *h, void *data, int len);
- void (*kick)(usb_handle *h);
-
- int control;
- int bulk_out; /* "out" from the host's perspective => source for adbd */
- int bulk_in; /* "in" from the host's perspective => sink for adbd */
-};
-
-static const struct {
- struct usb_functionfs_descs_head header;
- struct {
- struct usb_interface_descriptor intf;
- struct usb_endpoint_descriptor_no_audio source;
- struct usb_endpoint_descriptor_no_audio sink;
- } __attribute__((packed)) fs_descs, hs_descs;
-} __attribute__((packed)) descriptors = {
- .header = {
- .magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC),
- .length = cpu_to_le32(sizeof(descriptors)),
- .fs_count = 3,
- .hs_count = 3,
- },
- .fs_descs = {
- .intf = {
- .bLength = sizeof(descriptors.fs_descs.intf),
- .bDescriptorType = USB_DT_INTERFACE,
- .bInterfaceNumber = 0,
- .bNumEndpoints = 2,
- .bInterfaceClass = ADB_CLASS,
- .bInterfaceSubClass = ADB_SUBCLASS,
- .bInterfaceProtocol = ADB_PROTOCOL,
- .iInterface = 1, /* first string from the provided table */
- },
- .source = {
- .bLength = sizeof(descriptors.fs_descs.source),
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 1 | USB_DIR_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = MAX_PACKET_SIZE_FS,
- },
- .sink = {
- .bLength = sizeof(descriptors.fs_descs.sink),
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 2 | USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = MAX_PACKET_SIZE_FS,
- },
- },
- .hs_descs = {
- .intf = {
- .bLength = sizeof(descriptors.hs_descs.intf),
- .bDescriptorType = USB_DT_INTERFACE,
- .bInterfaceNumber = 0,
- .bNumEndpoints = 2,
- .bInterfaceClass = ADB_CLASS,
- .bInterfaceSubClass = ADB_SUBCLASS,
- .bInterfaceProtocol = ADB_PROTOCOL,
- .iInterface = 1, /* first string from the provided table */
- },
- .source = {
- .bLength = sizeof(descriptors.hs_descs.source),
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 1 | USB_DIR_OUT,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = MAX_PACKET_SIZE_HS,
- },
- .sink = {
- .bLength = sizeof(descriptors.hs_descs.sink),
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 2 | USB_DIR_IN,
- .bmAttributes = USB_ENDPOINT_XFER_BULK,
- .wMaxPacketSize = MAX_PACKET_SIZE_HS,
- },
- },
-};
-
-#define STR_INTERFACE_ "ADB Interface"
-
-static const struct {
- struct usb_functionfs_strings_head header;
- struct {
- __le16 code;
- const char str1[sizeof(STR_INTERFACE_)];
- } __attribute__((packed)) lang0;
-} __attribute__((packed)) strings = {
- .header = {
- .magic = cpu_to_le32(FUNCTIONFS_STRINGS_MAGIC),
- .length = cpu_to_le32(sizeof(strings)),
- .str_count = cpu_to_le32(1),
- .lang_count = cpu_to_le32(1),
- },
- .lang0 = {
- cpu_to_le16(0x0409), /* en-us */
- STR_INTERFACE_,
- },
-};
-
-void usb_cleanup()
-{
- // nothing to do here
-}
-
-static void *usb_adb_open_thread(void *x)
-{
- struct usb_handle *usb = (struct usb_handle *)x;
- int fd;
-
- while (1) {
- // wait until the USB device needs opening
- adb_mutex_lock(&usb->lock);
- while (usb->fd != -1)
- adb_cond_wait(&usb->notify, &usb->lock);
- adb_mutex_unlock(&usb->lock);
-
- D("[ usb_thread - opening device ]\n");
- do {
- /* XXX use inotify? */
- fd = unix_open("/dev/android_adb", O_RDWR);
- if (fd < 0) {
- // to support older kernels
- fd = unix_open("/dev/android", O_RDWR);
- fprintf(stderr, "usb_adb_open_thread: %d\n", fd );
- }
- if (fd < 0) {
- adb_sleep_ms(1000);
- }
- } while (fd < 0);
- D("[ opening device succeeded ]\n");
-
- close_on_exec(fd);
- usb->fd = fd;
-
- D("[ usb_thread - registering device ]\n");
- register_usb_transport(usb, 0, 1);
- }
-
- // never gets here
- return 0;
-}
-
-static int usb_adb_write(usb_handle *h, const void *data, int len)
-{
- int n;
-
- D("about to write (fd=%d, len=%d)\n", h->fd, len);
- n = adb_write(h->fd, data, len);
- if(n != len) {
- D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
- h->fd, n, errno, strerror(errno));
- return -1;
- }
- D("[ done fd=%d ]\n", h->fd);
- return 0;
-}
-
-static int usb_adb_read(usb_handle *h, void *data, int len)
-{
- int n;
-
- D("about to read (fd=%d, len=%d)\n", h->fd, len);
- n = adb_read(h->fd, data, len);
- if(n != len) {
- D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
- h->fd, n, errno, strerror(errno));
- return -1;
- }
- D("[ done fd=%d ]\n", h->fd);
- return 0;
-}
-
-static void usb_adb_kick(usb_handle *h)
-{
- D("usb_kick\n");
- adb_mutex_lock(&h->lock);
- adb_close(h->fd);
- h->fd = -1;
-
- // notify usb_adb_open_thread that we are disconnected
- adb_cond_signal(&h->notify);
- adb_mutex_unlock(&h->lock);
-}
-
-static void usb_adb_init()
-{
- usb_handle *h;
- adb_thread_t tid;
- int fd;
-
- h = calloc(1, sizeof(usb_handle));
-
- h->write = usb_adb_write;
- h->read = usb_adb_read;
- h->kick = usb_adb_kick;
- h->fd = -1;
-
- adb_cond_init(&h->notify, 0);
- adb_mutex_init(&h->lock, 0);
-
- fprintf(stderr, "Starting to open usb_init()\n");
- // Open the file /dev/android_adb_enable to trigger
- // the enabling of the adb USB function in the kernel.
- // We never touch this file again - just leave it open
- // indefinitely so the kernel will know when we are running
- // and when we are not.
- fd = unix_open("/dev/android_adb_enable", O_RDWR);
- fprintf(stderr, "unix_open to open usb_init(): %d\n", fd);
- if (fd < 0) {
- D("failed to open /dev/android_adb_enable\n");
- } else {
- close_on_exec(fd);
- }
-
- D("[ usb_init - starting thread ]\n");
- if(adb_thread_create(&tid, usb_adb_open_thread, h)){
- fatal_errno("cannot create usb thread");
- fprintf(stderr, "cannot create the usb thread()\n");
- }
-}
-
-
-static void init_functionfs(struct usb_handle *h)
-{
- ssize_t ret;
-
- D("OPENING %s\n", USB_FFS_ADB_EP0);
- h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
- if (h->control < 0) {
- D("[ %s: cannot open control endpoint: errno=%d]\n", USB_FFS_ADB_EP0, errno);
- goto err;
- }
-
- ret = adb_write(h->control, &descriptors, sizeof(descriptors));
- if (ret < 0) {
- D("[ %s: write descriptors failed: errno=%d ]\n", USB_FFS_ADB_EP0, errno);
- goto err;
- }
-
- ret = adb_write(h->control, &strings, sizeof(strings));
- if (ret < 0) {
- D("[ %s: writing strings failed: errno=%d]\n", USB_FFS_ADB_EP0, errno);
- goto err;
- }
-
- h->bulk_out = adb_open(USB_FFS_ADB_OUT, O_RDWR);
- if (h->bulk_out < 0) {
- D("[ %s: cannot open bulk-out ep: errno=%d ]\n", USB_FFS_ADB_OUT, errno);
- goto err;
- }
-
- h->bulk_in = adb_open(USB_FFS_ADB_IN, O_RDWR);
- if (h->bulk_in < 0) {
- D("[ %s: cannot open bulk-in ep: errno=%d ]\n", USB_FFS_ADB_IN, errno);
- goto err;
- }
-
- return;
-
-err:
- if (h->bulk_in > 0) {
- adb_close(h->bulk_in);
- h->bulk_in = -1;
- }
- if (h->bulk_out > 0) {
- adb_close(h->bulk_out);
- h->bulk_out = -1;
- }
- if (h->control > 0) {
- adb_close(h->control);
- h->control = -1;
- }
- return;
-}
-
-static void *usb_ffs_open_thread(void *x)
-{
- struct usb_handle *usb = (struct usb_handle *)x;
-
- while (1) {
- // wait until the USB device needs opening
- adb_mutex_lock(&usb->lock);
- while (usb->control != -1)
- adb_cond_wait(&usb->notify, &usb->lock);
- adb_mutex_unlock(&usb->lock);
-
- while (1) {
- init_functionfs(usb);
-
- if (usb->control >= 0)
- break;
-
- adb_sleep_ms(1000);
- }
-
- D("[ usb_thread - registering device ]\n");
- register_usb_transport(usb, 0, 1);
- }
-
- // never gets here
- return 0;
-}
-
-static int bulk_write(int bulk_in, const char *buf, size_t length)
-{
- size_t count = 0;
- int ret;
-
- do {
- ret = adb_write(bulk_in, buf + count, length - count);
- if (ret < 0) {
- if (errno != EINTR)
- return ret;
- } else {
- count += ret;
- }
- } while (count < length);
-
- D("[ bulk_write done fd=%d ]\n", bulk_in);
- return count;
-}
-
-static int usb_ffs_write(usb_handle *h, const void *data, int len)
-{
- int n;
-
- D("about to write (fd=%d, len=%d)\n", h->bulk_in, len);
- n = bulk_write(h->bulk_in, data, len);
- if (n != len) {
- D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
- h->bulk_in, n, errno, strerror(errno));
- return -1;
- }
- D("[ done fd=%d ]\n", h->bulk_in);
- return 0;
-}
-
-static int bulk_read(int bulk_out, char *buf, size_t length)
-{
- size_t count = 0;
- int ret;
-
- do {
- ret = adb_read(bulk_out, buf + count, length - count);
- if (ret < 0) {
- if (errno != EINTR) {
- D("[ bulk_read failed fd=%d length=%zu count=%zu ]\n",
- bulk_out, length, count);
- return ret;
- }
- } else {
- count += ret;
- }
- } while (count < length);
-
- return count;
-}
-
-static int usb_ffs_read(usb_handle *h, void *data, int len)
-{
- int n;
-
- D("about to read (fd=%d, len=%d)\n", h->bulk_out, len);
- n = bulk_read(h->bulk_out, data, len);
- if (n != len) {
- D("ERROR: fd = %d, n = %d, errno = %d (%s)\n",
- h->bulk_out, n, errno, strerror(errno));
- return -1;
- }
- D("[ done fd=%d ]\n", h->bulk_out);
- return 0;
-}
-
-static void usb_ffs_kick(usb_handle *h)
-{
- int err;
-
- err = ioctl(h->bulk_in, FUNCTIONFS_CLEAR_HALT);
- if (err < 0)
- D("[ kick: source (fd=%d) clear halt failed (%d) ]", h->bulk_in, errno);
-
- err = ioctl(h->bulk_out, FUNCTIONFS_CLEAR_HALT);
- if (err < 0)
- D("[ kick: sink (fd=%d) clear halt failed (%d) ]", h->bulk_out, errno);
-
- adb_mutex_lock(&h->lock);
- adb_close(h->control);
- adb_close(h->bulk_out);
- adb_close(h->bulk_in);
- h->control = h->bulk_out = h->bulk_in = -1;
-
- // notify usb_ffs_open_thread that we are disconnected
- adb_cond_signal(&h->notify);
- adb_mutex_unlock(&h->lock);
-}
-
-static void usb_ffs_init()
-{
- usb_handle *h;
- adb_thread_t tid;
-
- D("[ usb_init - using FunctionFS ]\n");
-
- h = calloc(1, sizeof(usb_handle));
-
- h->write = usb_ffs_write;
- h->read = usb_ffs_read;
- h->kick = usb_ffs_kick;
-
- h->control = -1;
- h->bulk_out = -1;
- h->bulk_out = -1;
-
- adb_cond_init(&h->notify, 0);
- adb_mutex_init(&h->lock, 0);
-
- D("[ usb_init - starting thread ]\n");
- if (adb_thread_create(&tid, usb_ffs_open_thread, h)){
- fatal_errno("[ cannot create usb thread ]\n");
- }
-}
-
-void usb_init()
-{
- if (access(USB_FFS_ADB_EP0, F_OK) == 0)
- usb_ffs_init();
- else
- usb_adb_init();
-}
-
-int usb_write(usb_handle *h, const void *data, int len)
-{
- return h->write(h, data, len);
-}
-
-int usb_read(usb_handle *h, void *data, int len)
-{
- return h->read(h, data, len);
-}
-int usb_close(usb_handle *h)
-{
- // nothing to do here
- return 0;
-}
-
-void usb_kick(usb_handle *h)
-{
- h->kick(h);
-}
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