diff options
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/tusb_fifo.h | 7 | ||||
| -rw-r--r-- | src/common/tusb_private.h | 12 |
2 files changed, 16 insertions, 3 deletions
diff --git a/src/common/tusb_fifo.h b/src/common/tusb_fifo.h index 42f154bca..94ab421bb 100644 --- a/src/common/tusb_fifo.h +++ b/src/common/tusb_fifo.h @@ -224,10 +224,11 @@ TU_ATTR_ALWAYS_INLINE static inline uint16_t tu_fifo_write_n(tu_fifo_t *f, const //--------------------------------------------------------------------+ // return overflowable count (index difference), which can be used to determine both fifo count and an overflow state TU_ATTR_ALWAYS_INLINE static inline uint16_t tu_ff_overflow_count(uint16_t depth, uint16_t wr_idx, uint16_t rd_idx) { - if (wr_idx >= rd_idx) { - return (uint16_t)(wr_idx - rd_idx); + const int32_t diff = (int32_t)wr_idx - (int32_t)rd_idx; + if (diff >= 0) { + return (uint16_t)diff; } else { - return (uint16_t)(2 * depth - (rd_idx - wr_idx)); + return (uint16_t)(2 * depth + diff); } } diff --git a/src/common/tusb_private.h b/src/common/tusb_private.h index 8643bb020..0e9eef732 100644 --- a/src/common/tusb_private.h +++ b/src/common/tusb_private.h @@ -33,6 +33,18 @@ extern "C" { #endif +//--------------------------------------------------------------------+ +// Configuration +//--------------------------------------------------------------------+ + +#if CFG_TUD_ENABLED && CFG_TUD_VENDOR && (CFG_TUD_VENDOR_TX_BUFSIZE == 0 || CFG_TUD_VENDOR_RX_BUFSIZE == 0) + #define CFG_TUSB_EDPT_STREAM_NO_FIFO_ENABLED 1 +#endif + +#ifndef CFG_TUSB_EDPT_STREAM_NO_FIFO_ENABLED + #define CFG_TUSB_EDPT_STREAM_NO_FIFO_ENABLED 0 +#endif + #define TUP_USBIP_CONTROLLER_NUM 2 extern tusb_role_t _tusb_rhport_role[TUP_USBIP_CONTROLLER_NUM]; |