From 99bffc2a21ebed07fd767ad2a9a7e1aadd491ef3 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Sun, 7 Feb 2021 23:16:15 +0000
Subject: Migrate some tmk_core files to quantum (#11791)

* Migrate some tmk_core files to quantum

* Fix build errors
---
 tmk_core/common/util.c | 123 -------------------------------------------------
 1 file changed, 123 deletions(-)
 delete mode 100644 tmk_core/common/util.c

(limited to 'tmk_core/common/util.c')

diff --git a/tmk_core/common/util.c b/tmk_core/common/util.c
deleted file mode 100644
index 861cca0054..0000000000
--- a/tmk_core/common/util.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-Copyright 2011 Jun Wako <wakojun@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "util.h"
-
-// bit population - return number of on-bit
-__attribute__((noinline)) uint8_t bitpop(uint8_t bits) {
-    uint8_t c;
-    for (c = 0; bits; c++) bits &= bits - 1;
-    return c;
-    /*
-        const uint8_t bit_count[] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4 };
-        return bit_count[bits>>4] + bit_count[bits&0x0F]
-    */
-}
-
-uint8_t bitpop16(uint16_t bits) {
-    uint8_t c;
-    for (c = 0; bits; c++) bits &= bits - 1;
-    return c;
-}
-
-uint8_t bitpop32(uint32_t bits) {
-    uint8_t c;
-    for (c = 0; bits; c++) bits &= bits - 1;
-    return c;
-}
-
-// most significant on-bit - return highest location of on-bit
-// NOTE: return 0 when bit0 is on or all bits are off
-__attribute__((noinline)) uint8_t biton(uint8_t bits) {
-    uint8_t n = 0;
-    if (bits >> 4) {
-        bits >>= 4;
-        n += 4;
-    }
-    if (bits >> 2) {
-        bits >>= 2;
-        n += 2;
-    }
-    if (bits >> 1) {
-        bits >>= 1;
-        n += 1;
-    }
-    return n;
-}
-
-uint8_t biton16(uint16_t bits) {
-    uint8_t n = 0;
-    if (bits >> 8) {
-        bits >>= 8;
-        n += 8;
-    }
-    if (bits >> 4) {
-        bits >>= 4;
-        n += 4;
-    }
-    if (bits >> 2) {
-        bits >>= 2;
-        n += 2;
-    }
-    if (bits >> 1) {
-        bits >>= 1;
-        n += 1;
-    }
-    return n;
-}
-
-uint8_t biton32(uint32_t bits) {
-    uint8_t n = 0;
-    if (bits >> 16) {
-        bits >>= 16;
-        n += 16;
-    }
-    if (bits >> 8) {
-        bits >>= 8;
-        n += 8;
-    }
-    if (bits >> 4) {
-        bits >>= 4;
-        n += 4;
-    }
-    if (bits >> 2) {
-        bits >>= 2;
-        n += 2;
-    }
-    if (bits >> 1) {
-        bits >>= 1;
-        n += 1;
-    }
-    return n;
-}
-
-__attribute__((noinline)) uint8_t bitrev(uint8_t bits) {
-    bits = (bits & 0x0f) << 4 | (bits & 0xf0) >> 4;
-    bits = (bits & 0b00110011) << 2 | (bits & 0b11001100) >> 2;
-    bits = (bits & 0b01010101) << 1 | (bits & 0b10101010) >> 1;
-    return bits;
-}
-
-uint16_t bitrev16(uint16_t bits) {
-    bits = bitrev(bits & 0x00ff) << 8 | bitrev((bits & 0xff00) >> 8);
-    return bits;
-}
-
-uint32_t bitrev32(uint32_t bits) {
-    bits = (uint32_t)bitrev16(bits & 0x0000ffff) << 16 | bitrev16((bits & 0xffff0000) >> 16);
-    return bits;
-}
-- 
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