From 6b754bcb62fa2a898f684f54cb26249d244e57c6 Mon Sep 17 00:00:00 2001
From: pod2g
Date: Sat, 1 Jan 2011 16:20:29 +0100
Subject: Now file transfers should also work at the iBoot level

---
 libirecovery.c | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/libirecovery.c b/libirecovery.c
index 0aed224..81bf6d5 100644
--- a/libirecovery.c
+++ b/libirecovery.c
@@ -260,17 +260,28 @@ int irecv_bulk_transfer(irecv_client_t client,
 							int length,
 							int *transferred,
 							unsigned int timeout) {
+	int ret;
+
+	// pod2g 2011-01-01: switch to interface 1.1 for bulk transfers then switch back to 0.0
+	irecv_set_interface(client, 0, 0);
+
 #ifndef WIN32
-	return libusb_bulk_transfer(client->handle, endpoint, data, length, transferred, timeout);
+	ret = libusb_bulk_transfer(client->handle, endpoint, data, length, transferred, timeout);
 #else
-	int ret;
 	if (endpoint==0x4) {
 		ret = DeviceIoControl(client->handle, 0x220195, data, length, data, length, (PDWORD) transferred, NULL);
 	} else {
 		ret = 0;
 	}
-	return ret==0?-1:0;
-#endif							
+	ret==0?-1:0;
+#endif
+	if (ret < 0) {
+		// pod2g 2010-12-28: MacOSX need a reset if read times out, also the reset seems to improve stability when switching interfaces
+		irecv_reset(client);
+	}
+
+	irecv_set_interface(client, 1, 1);
+	return ret;
 }
 
 int irecv_get_string_descriptor_ascii(irecv_client_t client, uint8_t desc_index, unsigned char * buffer, int size) {
@@ -358,13 +369,14 @@ irecv_error_t irecv_open(irecv_client_t* pclient) {
 				if (error != IRECV_E_SUCCESS) {
 					return error;
 				}
-				
+
 				if (client->mode != kDfuMode) {
 					// pod2g 2010-12-28: switched to interface 1.1 by default on non DFU modes
 					error = irecv_set_interface(client, 1, 1);
 				} else {
 					error = irecv_set_interface(client, 0, 0);
 				}
+
 				if (error != IRECV_E_SUCCESS) {
 					return error;
 				}
@@ -533,7 +545,8 @@ irecv_error_t irecv_close(irecv_client_t client) {
 #ifndef WIN32
 		if (client->handle != NULL) {
 			if (client->mode != kDfuMode) {
-				libusb_release_interface(client->handle, client->interface);
+				// pod2g 2010-12-28: this crashes iBoot on MacOSX
+				//libusb_release_interface(client->handle, client->interface);
 			}
 			libusb_close(client->handle);
 			client->handle = NULL;
@@ -752,8 +765,7 @@ irecv_error_t irecv_receive(irecv_client_t client) {
 	memset(buffer, '\0', BUFFER_SIZE);
 	if (check_context(client) != IRECV_E_SUCCESS) return IRECV_E_NO_DEVICE;
 
-	// pod2g 2010-12-28: switch to interface 0 for console reading then return to interface 1
-	irecv_set_interface(client, 0, 0);
+	// pod2g 2010-12-28: switch to interface 0 for bulk transfers then return to interface 1
 	int bytes = 0;
 	while (irecv_bulk_transfer(client, 0x81, (unsigned char*) buffer, BUFFER_SIZE, &bytes, 1000) == 0) {
 		if (bytes > 0) {
@@ -763,7 +775,6 @@ irecv_error_t irecv_receive(irecv_client_t client) {
 				event.data = buffer;
 				event.type = IRECV_RECEIVED;
 				if (client->received_callback(client, &event) != 0) {
-					irecv_set_interface(client, 1, 1);
 					return IRECV_E_SUCCESS;
 				}
 			}
@@ -771,9 +782,6 @@ irecv_error_t irecv_receive(irecv_client_t client) {
 		} else break;
 	}
 
-	// pod2g 2010-12-28: MacOSX need a reset if read times out, also the reset seems to improve stability when switching interfaces
-	irecv_reset(client);
-	irecv_set_interface(client, 1, 1);
 	return IRECV_E_SUCCESS;
 }
 
-- 
cgit v1.1-32-gdbae