Revert "Fix conflicting types for 'tfp_printf' (#8269)"

This reverts commit e17b55e33ad5b3dcefcf7b828ac99aeb2daeeae2.

1 files changed, 233 insertions, 0 deletions

diff --git a/tmk_core/common/chibios/printf.c b/tmk_core/common/chibios/printf.c
new file mode 100644
index 000000000..a99752bb3
--- /dev/null
+++ b/tmk_core/common/chibios/printf.c
@@ -0,0 +1,233 @@
+/*
+ * found at: http://www.sparetimelabs.com/tinyprintf/tinyprintf.php
+ * and:      http://www.sparetimelabs.com/printfrevisited/printfrevisited.php
+ */
+
+/*
+File: printf.c
+
+Copyright (C) 2004  Kustaa Nyholm
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+*/
+
+#include "printf.h"
+
+typedef void (*putcf)(void*, char);
+static putcf stdout_putf;
+static void* stdout_putp;
+
+// this adds cca 400 bytes
+#define PRINTF_LONG_SUPPORT
+
+#ifdef PRINTF_LONG_SUPPORT
+
+static void uli2a(unsigned long int num, unsigned int base, int uc, char* bf) {
+    int          n = 0;
+    unsigned int d = 1;
+    while (num / d >= base) d *= base;
+    while (d != 0) {
+        int dgt = num / d;
+        num %= d;
+        d /= base;
+        if (n || dgt > 0 || d == 0) {
+            *bf++ = dgt + (dgt < 10 ? '0' : (uc ? 'A' : 'a') - 10);
+            ++n;
+        }
+    }
+    *bf = 0;
+}
+
+static void li2a(long num, char* bf) {
+    if (num < 0) {
+        num   = -num;
+        *bf++ = '-';
+    }
+    uli2a(num, 10, 0, bf);
+}
+
+#endif
+
+static void ui2a(unsigned int num, unsigned int base, int uc, char* bf) {
+    int          n = 0;
+    unsigned int d = 1;
+    while (num / d >= base) d *= base;
+    while (d != 0) {
+        int dgt = num / d;
+        num %= d;
+        d /= base;
+        if (n || dgt > 0 || d == 0) {
+            *bf++ = dgt + (dgt < 10 ? '0' : (uc ? 'A' : 'a') - 10);
+            ++n;
+        }
+    }
+    *bf = 0;
+}
+
+static void i2a(int num, char* bf) {
+    if (num < 0) {
+        num   = -num;
+        *bf++ = '-';
+    }
+    ui2a(num, 10, 0, bf);
+}
+
+static int a2d(char ch) {
+    if (ch >= '0' && ch <= '9')
+        return ch - '0';
+    else if (ch >= 'a' && ch <= 'f')
+        return ch - 'a' + 10;
+    else if (ch >= 'A' && ch <= 'F')
+        return ch - 'A' + 10;
+    else
+        return -1;
+}
+
+static char a2i(char ch, const char** src, int base, int* nump) {
+    const char* p   = *src;
+    int         num = 0;
+    int         digit;
+    while ((digit = a2d(ch)) >= 0) {
+        if (digit > base) break;
+        num = num * base + digit;
+        ch  = *p++;
+    }
+    *src  = p;
+    *nump = num;
+    return ch;
+}
+
+static void putchw(void* putp, putcf putf, int n, char z, char* bf) {
+    char  fc = z ? '0' : ' ';
+    char  ch;
+    char* p = bf;
+    while (*p++ && n > 0) n--;
+    while (n-- > 0) putf(putp, fc);
+    while ((ch = *bf++)) putf(putp, ch);
+}
+
+void tfp_format(void* putp, putcf putf, const char* fmt, va_list va) {
+    // This used to handle max of 12, but binary support jumps this to at least 32
+    char bf[36];
+
+    char ch;
+
+    while ((ch = *(fmt++))) {
+        if (ch != '%')
+            putf(putp, ch);
+        else {
+            char lz = 0;
+#ifdef PRINTF_LONG_SUPPORT
+            char lng = 0;
+#endif
+            int w = 0;
+            ch    = *(fmt++);
+            if (ch == '0') {
+                ch = *(fmt++);
+                lz = 1;
+            }
+            if (ch >= '0' && ch <= '9') {
+                ch = a2i(ch, &fmt, 10, &w);
+            }
+#ifdef PRINTF_LONG_SUPPORT
+            if (ch == 'l') {
+                ch  = *(fmt++);
+                lng = 1;
+            }
+#endif
+            switch (ch) {
+                case 0:
+                    goto abort;
+                case 'u': {
+#ifdef PRINTF_LONG_SUPPORT
+                    if (lng)
+                        uli2a(va_arg(va, unsigned long int), 10, 0, bf);
+                    else
+#endif
+                        ui2a(va_arg(va, unsigned int), 10, 0, bf);
+                    putchw(putp, putf, w, lz, bf);
+                    break;
+                }
+                case 'd': {
+#ifdef PRINTF_LONG_SUPPORT
+                    if (lng)
+                        li2a(va_arg(va, unsigned long int), bf);
+                    else
+#endif
+                        i2a(va_arg(va, int), bf);
+                    putchw(putp, putf, w, lz, bf);
+                    break;
+                }
+                case 'x':
+                case 'X':
+#ifdef PRINTF_LONG_SUPPORT
+                    if (lng)
+                        uli2a(va_arg(va, unsigned long int), 16, (ch == 'X'), bf);
+                    else
+#endif
+                        ui2a(va_arg(va, unsigned int), 16, (ch == 'X'), bf);
+                    putchw(putp, putf, w, lz, bf);
+                    break;
+                case 'c':
+                    putf(putp, (char)(va_arg(va, int)));
+                    break;
+                case 's':
+                    putchw(putp, putf, w, 0, va_arg(va, char*));
+                    break;
+                case 'b':
+#ifdef PRINTF_LONG_SUPPORT
+                    if (lng)
+                        uli2a(va_arg(va, unsigned long int), 2, 0, bf);
+                    else
+#endif
+                        ui2a(va_arg(va, unsigned int), 2, 0, bf);
+                    putchw(putp, putf, w, lz, bf);
+                    break;
+                case '%':
+                    putf(putp, ch);
+                default:
+                    break;
+            }
+        }
+    }
+abort:;
+}
+
+void init_printf(void* putp, void (*putf)(void*, char)) {
+    stdout_putf = putf;
+    stdout_putp = putp;
+}
+
+int tfp_printf(const char* fmt, ...) {
+    va_list va;
+    va_start(va, fmt);
+    tfp_format(stdout_putp, stdout_putf, fmt, va);
+    va_end(va);
+
+    return 1;
+}
+
+static void putcp(void* p, char c) { *(*((char**)p))++ = c; }
+
+int tfp_sprintf(char* s, const char* fmt, ...) {
+    va_list va;
+    va_start(va, fmt);
+    tfp_format(&s, putcp, fmt, va);
+    putcp(&s, 0);
+    va_end(va);
+
+    return 1;
+}