Merge "Enlarge USB bulk transfer size for faster downloads" (ab6e55f7) · Commits · e / os / android_system_core

fastboot/usb_linux.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -61,6 +61,11 @@
		#define DBG1(x...)
		#endif

		/* The max bulk size for linux is 16384 which is defined
		* in drivers/usb/core/devio.c.
		*/
		#define MAX_USBFS_BULK_SIZE (16 * 1024)

		struct usb_handle
		{
		char fname[64];
		@@ -289,7 +294,7 @@ int usb_write(usb_handle h, const void _data, int len)

		while(len > 0) {
		int xfer;
		xfer = (len > 4096) ? 4096 : len;
		xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;

		bulk.ep = h->ep_out;
		bulk.len = xfer;
		@@ -323,7 +328,7 @@ int usb_read(usb_handle h, void _data, int len)
		}

		while(len > 0) {
		int xfer = (len > 4096) ? 4096 : len;
		int xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;

		bulk.ep = h->ep_in;
		bulk.len = xfer;

+3 −2

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@
		#define DBG(x...)
		#endif

		#define MAX_USBFS_BULK_SIZE (1024 * 1024)

		/** Structure usb_handle describes our connection to the usb device via
		AdbWinApi.dll. This structure is returned from usb_open() routine and
		@@ -160,7 +161,7 @@ int usb_write(usb_handle* handle, const void* data, int len) {
		if (NULL != handle) {
		// Perform write
		while(len > 0) {
		int xfer = (len > 4096) ? 4096 : len;
		int xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;
		ret = AdbWriteEndpointSync(handle->adb_write_pipe,
		(void*)data,
		(unsigned long)xfer,
		@@ -200,7 +201,7 @@ int usb_read(usb_handle handle, void data, int len) {
		DBG("usb_read %d\n", len);
		if (NULL != handle) {
		while (1) {
		int xfer = (len > 4096) ? 4096 : len;
		int xfer = (len > MAX_USBFS_BULK_SIZE) ? MAX_USBFS_BULK_SIZE : len;

		ret = AdbReadEndpointSync(handle->adb_read_pipe,
		(void*)data,