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-rw-r--r--common/print.c127
1 files changed, 86 insertions, 41 deletions
diff --git a/common/print.c b/common/print.c
index 4e36d3935b..dd73ff59dd 100644
--- a/common/print.c
+++ b/common/print.c
@@ -1,3 +1,4 @@
+/* Copyright 2012 Jun Wako <wakojun@gmail.com> */
/* Very basic print functions, intended to be used with usb_debug_only.c
* http://www.pjrc.com/teensy/
* Copyright (c) 2008 PJRC.COM, LLC
@@ -21,81 +22,125 @@
* THE SOFTWARE.
*/
+#include <stdio.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
#include "print.h"
-#include "sendchar.h"
+#define sendchar(c) do { if (print_enable && print_sendchar_func) (print_sendchar_func)(c); } while (0)
+int8_t (*print_sendchar_func)(uint8_t) = NULL;
bool print_enable = false;
+/* print string stored in data memory(SRAM)
+ * print_P("hello world");
+ * This consumes precious SRAM memory space for string.
+ */
void print_S(const char *s)
{
- if (!print_enable) return;
- char c;
-
- while (1) {
- c = *s++;
- if (!c) break;
- if (c == '\n') sendchar('\r');
- sendchar(c);
- }
+ uint8_t c;
+ while (1) {
+ c = *s++;
+ if (!c) break;
+ if (c == '\n') sendchar('\r');
+ sendchar(c);
+ }
}
+/* print string stored in program memory(FLASH)
+ * print_P(PSTR("hello world");
+ * This consumes relatively abundant FLASH memory area not SRAM.
+ */
void print_P(const char *s)
{
- if (!print_enable) return;
- char c;
-
- while (1) {
- c = pgm_read_byte(s++);
- if (!c) break;
- if (c == '\n') sendchar('\r');
- sendchar(c);
- }
+ uint8_t c;
+ while (1) {
+ c = pgm_read_byte(s++);
+ if (!c) break;
+ if (c == '\n') sendchar('\r');
+ sendchar(c);
+ }
+}
+
+static inline
+void print_hex4(uint8_t data)
+{
+ sendchar(data + ((data < 10) ? '0' : 'A' - 10));
+}
+
+void print_hex8(uint8_t data)
+{
+ print_hex4(data>>4);
+ print_hex4(data&0x0F);
}
-void phex1(unsigned char c)
+void print_hex16(uint16_t data)
{
- if (!print_enable) return;
- sendchar(c + ((c < 10) ? '0' : 'A' - 10));
+ print_hex8(data>>8);
+ print_hex8(data);
}
-void phex(unsigned char c)
+void print_hex32(uint32_t data)
{
- if (!print_enable) return;
- phex1(c >> 4);
- phex1(c & 15);
+ print_hex16(data>>16);
+ print_hex16(data);
}
-void phex16(unsigned int i)
+void print_dec8(uint8_t data)
{
- if (!print_enable) return;
- phex(i >> 8);
- phex(i);
+ if (data/100) sendchar('0' + (data/100));
+ if (data/100 || data%100/10) sendchar('0' + (data%100/10));
+ sendchar('0' + (data%10));
}
-void pdec(uint8_t i)
+void print_dec16(uint16_t data)
{
- if (!print_enable) return;
- if (i/100) sendchar('0' + (i/100));
- if (i/100 || i%100/10) sendchar('0' + (i%100/10));
- sendchar('0' + (i%10));
+ // TODO
}
+void print_dec32(uint32_t data)
+{
+ // TODO
+}
-void pbin(unsigned char c)
+void print_bin(uint8_t data)
{
- if (!print_enable) return;
for (int i = 7; i >= 0; i--) {
- sendchar((c & (1<<i)) ? '1' : '0');
+ sendchar((data & (1<<i)) ? '1' : '0');
}
}
-void pbin_reverse(unsigned char c)
+void print_bin16(uint16_t data)
+{
+ print_bin8(data>>8);
+ print_bin8(data);
+}
+
+void print_bin32(uint32_t data)
+{
+ print_bin8(data>>24);
+ print_bin8(data>>16);
+ print_bin8(data>>8);
+ print_bin8(data);
+}
+
+void print_bin_reverse8(uint8_t data)
{
- if (!print_enable) return;
for (int i = 0; i < 8; i++) {
- sendchar((c & (1<<i)) ? '1' : '0');
+ sendchar((data & (1<<i)) ? '1' : '0');
}
}
+
+void print_bin_reverse16(uint16_t data)
+{
+ print_bin_reverse8(data);
+ print_bin_reverse8(data>>8);
+}
+
+void print_bin_reverse32(uint32_t data)
+{
+ print_bin_reverse8(data);
+ print_bin_reverse8(data>>8);
+ print_bin_reverse8(data>>16);
+ print_bin_reverse8(data>>24);
+}