From 1fe9ae76b113103bcc40aa15949f9dd8aa0a06a2 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Thu, 10 May 2018 10:52:15 +0900 Subject: [PATCH] gadget: f_thor: update to support more than 4GB file as thor 5.0 During file download, it only uses 32bit variable for file size and it limits maximum file size less than 4GB. Update to support more than 4GB file with using two 32bit variables for file size as thor protocol 5.0. Signed-off-by: Seung-Woo Kim --- drivers/usb/gadget/f_thor.c | 10 +++++++--- drivers/usb/gadget/f_thor.h | 2 +- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/f_thor.c b/drivers/usb/gadget/f_thor.c index 6d38cb6..c8eda05 100644 --- a/drivers/usb/gadget/f_thor.c +++ b/drivers/usb/gadget/f_thor.c @@ -262,8 +262,10 @@ static long long int process_rqt_download(const struct rqt_box *rqt) switch (rqt->rqt_data) { case RQT_DL_INIT: - thor_file_size = rqt->int_data[0]; - debug("INIT: total %d bytes\n", rqt->int_data[0]); + thor_file_size = (unsigned long long int)rqt->int_data[0] + + (((unsigned long long int)rqt->int_data[1]) + << 32); + debug("INIT: total %llu bytes\n", thor_file_size); break; case RQT_DL_FILE_INFO: file_type = rqt->int_data[0]; @@ -274,7 +276,9 @@ static long long int process_rqt_download(const struct rqt_box *rqt) break; } - thor_file_size = rqt->int_data[1]; + thor_file_size = (unsigned long long int)rqt->int_data[1] + + (((unsigned long long int)rqt->int_data[2]) + << 32); memcpy(f_name, rqt->str_data[0], F_NAME_BUF_SIZE); f_name[F_NAME_BUF_SIZE] = '\0'; diff --git a/drivers/usb/gadget/f_thor.h b/drivers/usb/gadget/f_thor.h index 47abc8a..8ba3fa2 100644 --- a/drivers/usb/gadget/f_thor.h +++ b/drivers/usb/gadget/f_thor.h @@ -34,7 +34,7 @@ struct usb_cdc_attribute_vendor_descriptor { __u8 DAUValue; } __packed; -#define VER_PROTOCOL_MAJOR 4 +#define VER_PROTOCOL_MAJOR 5 #define VER_PROTOCOL_MINOR 0 enum rqt {