diff options
Diffstat (limited to 'common/usbx_device_classes/inc/ux_device_class_printer.h')
| -rw-r--r-- | common/usbx_device_classes/inc/ux_device_class_printer.h | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/common/usbx_device_classes/inc/ux_device_class_printer.h b/common/usbx_device_classes/inc/ux_device_class_printer.h index 9dcb458..c87cb38 100644 --- a/common/usbx_device_classes/inc/ux_device_class_printer.h +++ b/common/usbx_device_classes/inc/ux_device_class_printer.h @@ -24,7 +24,7 @@ /* COMPONENT DEFINITION RELEASE */ /* */ /* ux_device_class_printer.h PORTABLE C */ -/* 6.x */ +/* 6.3.0 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ @@ -50,11 +50,11 @@ /* 03-08-2023 Yajun xia Modified comment(s), */ /* added error checks support, */ /* resulting in version 6.2.1 */ -/* xx-xx-xxxx Yajun Xia, CQ Xiao Modified comment(s), */ +/* 10-31-2023 Yajun Xia, CQ Xiao Modified comment(s), */ /* added a new mode to manage */ /* endpoint buffer in classes, */ /* fixed error checking issue, */ -/* resulting in version 6.x */ +/* resulting in version 6.3.0 */ /* */ /**************************************************************************/ @@ -77,6 +77,16 @@ extern "C" { #define UX_DEVICE_CLASS_PRINTER_ENABLE_ERROR_CHECKING #endif + +/* Option: defined, it enables zero copy support (works if PRINTER owns endpoint buffer). + Defined, it enables zero copy for bulk in/out endpoints (write/read). In this case, the endpoint + buffer is not allocated in class, application must provide the buffer for read/write, and the + buffer must meet device controller driver (DCD) buffer requirements (e.g., aligned and cache + safe if buffer is for DMA). + */ +/* #define UX_DEVICE_CLASS_PRINTER_ZERO_COPY */ + + /* Defined, _write is pending ZLP automatically (complete transfer) after buffer is sent. */ /* #define UX_DEVICE_CLASS_PRINTER_WRITE_AUTO_ZLP */ @@ -93,6 +103,13 @@ extern "C" { #endif +/* Internal: check if class own endpoint buffer */ +#if (UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1) && \ + (!defined(UX_DEVICE_CLASS_PRINTER_ZERO_COPY)) +#define UX_DEVICE_CLASS_PRINTER_OWN_ENDPOINT_BUFFER +#endif + + /* Define Printer Class USB Class constants. */ #define UX_DEVICE_CLASS_PRINTER_CLASS 7 |