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authorBadhri Jagan Sridharan <badhri@google.com>2014-10-28 02:32:35 +0100
committerChristopher Ferris <cferris@google.com>2015-01-26 21:49:13 +0100
commit9e3cce50a3a571fcdc6a0a28da81ef00071ccb4f (patch)
tree84d78feeeb9c447101929d934d6fde1054a50580 /minadbd/usb_linux_client.c
parentMerge "Remove superfluous OpenSSL include paths." (diff)
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Diffstat (limited to 'minadbd/usb_linux_client.c')
-rw-r--r--minadbd/usb_linux_client.c161
1 files changed, 107 insertions, 54 deletions
diff --git a/minadbd/usb_linux_client.c b/minadbd/usb_linux_client.c
index 29bab1558..e7d3c4854 100644
--- a/minadbd/usb_linux_client.c
+++ b/minadbd/usb_linux_client.c
@@ -52,7 +52,35 @@ struct usb_handle
int bulk_in; /* "in" from the host's perspective => sink for adbd */
};
-static const struct {
+struct func_desc {
+ struct usb_interface_descriptor intf;
+ struct usb_endpoint_descriptor_no_audio source;
+ struct usb_endpoint_descriptor_no_audio sink;
+} __attribute__((packed));
+
+struct desc_v1 {
+ struct usb_functionfs_descs_head_v1 {
+ __le32 magic;
+ __le32 length;
+ __le32 fs_count;
+ __le32 hs_count;
+ } __attribute__((packed)) header;
+ struct func_desc fs_descs, hs_descs;
+} __attribute__((packed));
+
+struct desc_v2 {
+ struct usb_functionfs_descs_head_v2 {
+ __le32 magic;
+ __le32 length;
+ __le32 flags;
+ __le32 fs_count;
+ __le32 hs_count;
+ __le32 ss_count;
+ } __attribute__((packed)) header;
+ struct func_desc fs_descs, hs_descs;
+} __attribute__((packed));
+
+/*static const struct {
struct usb_functionfs_descs_head header;
struct {
struct usb_interface_descriptor intf;
@@ -66,57 +94,60 @@ static const struct {
.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,
- },
+
+*/
+
+struct func_desc fs_descriptors = {
+ .intf = {
+ .bLength = sizeof(fs_descriptors.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(fs_descriptors.source),
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 1 | USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+ },
+ .sink = {
+ .bLength = sizeof(fs_descriptors.sink),
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 2 | USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = MAX_PACKET_SIZE_FS,
+ },
+};
+
+struct func_desc hs_descriptors = {
+ .intf = {
+ .bLength = sizeof(hs_descriptors.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(hs_descriptors.source),
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 1 | USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = MAX_PACKET_SIZE_HS,
},
- .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,
- },
+ .sink = {
+ .bLength = sizeof(hs_descriptors.sink),
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = 2 | USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = MAX_PACKET_SIZE_HS,
},
};
@@ -267,6 +298,18 @@ static void usb_adb_init()
static void init_functionfs(struct usb_handle *h)
{
ssize_t ret;
+ struct desc_v1 v1_descriptor;
+ struct desc_v2 v2_descriptor;
+
+ v2_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC_V2);
+ v2_descriptor.header.length = cpu_to_le32(sizeof(v2_descriptor));
+ v2_descriptor.header.flags = FUNCTIONFS_HAS_FS_DESC | FUNCTIONFS_HAS_HS_DESC;
+ v2_descriptor.header.fs_count = 3;
+ v2_descriptor.header.hs_count = 3;
+ v2_descriptor.header.ss_count = 0;
+ v2_descriptor.fs_descs = fs_descriptors;
+ v2_descriptor.hs_descs = hs_descriptors;
+
D("OPENING %s\n", USB_FFS_ADB_EP0);
h->control = adb_open(USB_FFS_ADB_EP0, O_RDWR);
@@ -275,10 +318,20 @@ static void init_functionfs(struct usb_handle *h)
goto err;
}
- ret = adb_write(h->control, &descriptors, sizeof(descriptors));
+ ret = adb_write(h->control, &v2_descriptor, sizeof(v2_descriptor));
if (ret < 0) {
- D("[ %s: write descriptors failed: errno=%d ]\n", USB_FFS_ADB_EP0, errno);
- goto err;
+ v1_descriptor.header.magic = cpu_to_le32(FUNCTIONFS_DESCRIPTORS_MAGIC);
+ v1_descriptor.header.length = cpu_to_le32(sizeof(v1_descriptor));
+ v1_descriptor.header.fs_count = 3;
+ v1_descriptor.header.hs_count = 3;
+ v1_descriptor.fs_descs = fs_descriptors;
+ v1_descriptor.hs_descs = hs_descriptors;
+ D("[ %s: Switching to V1_descriptor format errno=%d ]\n", USB_FFS_ADB_EP0, errno);
+ ret = adb_write(h->control, &v1_descriptor, sizeof(v1_descriptor));
+ 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));