diff options
| author | sakumisu <[email protected]> | 2022-03-26 16:05:43 +0800 |
|---|---|---|
| committer | sakumisu <[email protected]> | 2022-03-26 16:06:18 +0800 |
| commit | ceeb951a00b4d01860b8dbd146e99c46e211923f (patch) | |
| tree | df3507dd391fd342dac365c49bef819c806b8020 | |
| parent | 22f7322ed9ea3684961a805994d2bcf60e2ad3cf (diff) | |
add variable length param control for macros
| -rw-r--r-- | common/usb_util.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/common/usb_util.h b/common/usb_util.h index d21a5f61..7c70c1f1 100644 --- a/common/usb_util.h +++ b/common/usb_util.h @@ -227,6 +227,27 @@ #define WBVAL(x) (x & 0xFF), ((x >> 8) & 0xFF) #define DBVAL(x) (x & 0xFF), ((x >> 8) & 0xFF), ((x >> 16) & 0xFF), ((x >> 24) & 0xFF) +#define PP_NARG(...) \ + PP_NARG_(__VA_ARGS__, PP_RSEQ_N()) +#define PP_NARG_(...) \ + PP_ARG_N(__VA_ARGS__) +#define PP_ARG_N( \ + _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, \ + _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, \ + _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, \ + _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, \ + _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, \ + _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, \ + _61, _62, _63, N, ...) N +#define PP_RSEQ_N() \ + 63, 62, 61, 60, \ + 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, \ + 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, \ + 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, \ + 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, \ + 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, \ + 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 + #define USB_DESC_SECTION __attribute__((section("usb_desc"))) __USED __ALIGNED(1) /* DEBUG level */ |