freemyipod r714 - Code Review

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Repository:freemyipod
Revision:< r713‎ | r714 | r715 >
Date:00:18, 21 May 2011
Author:user890104
Status:new
Tags:
Comment:
New app: Beeper, and an example song that can be played
Modified paths:
  • /apps/beeper (added) (history)
  • /apps/beeper/Makefile (added) (history)
  • /apps/beeper/SOURCES (added) (history)
  • /apps/beeper/beep.c (added) (history)
  • /apps/beeper/beep.h (added) (history)
  • /apps/beeper/convert.php (added) (history)
  • /apps/beeper/ls.x (added) (history)
  • /apps/beeper/main.c (added) (history)
  • /apps/beeper/mario.txt (added) (history)
  • /apps/beeper/version.h (added) (history)

Diff [purge]

Index: apps/beeper/beep.h
——@@ -0,0 +1,39 @@
 2+//
 3+//
 4+// Copyright 2011 TheSeven, user890104
 5+//
 6+//
 7+// This file is part of emCORE.
 8+//
 9+// emCORE is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emCORE is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emCORE. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#ifndef __BEEP_H__
 26+#define __BEEP_H__
 27+
 28+#include "emcoreapp.h"
 29+
 30+/////TIMER/////
 31+#define TDCON (*((uint32_t volatile*)(0x3C700060)))
 32+#define TDCMD (*((uint32_t volatile*)(0x3C700064)))
 33+#define TDDATA0 (*((uint32_t volatile*)(0x3C700068)))
 34+#define TDDATA1 (*((uint32_t volatile*)(0x3C70006C)))
 35+#define TDPRE (*((uint32_t volatile*)(0x3C700070)))
 36+#define TDCNT (*((uint32_t volatile*)(0x3C700074)))
 37+
 38+void singlebeep(unsigned int cycles, unsigned int time);
 39+
 40+#endif
Index: apps/beeper/SOURCES
——@@ -0,0 +1,2 @@
 2+beep.c
 3+main.c
Index: apps/beeper/ls.x
——@@ -0,0 +1,42 @@
 2+ENTRY(__emcore_entrypoint)
 3+OUTPUT_FORMAT(elf32-littlearm)
 4+OUTPUT_ARCH(arm)
 5+
 6+MEMORY
 7+{
 8+ VIRTUAL : ORIGIN = 0x00000000, LENGTH = 0x10000000
 9+}
 10+
 11+SECTIONS
 12+{
 13+ .text :
 14+ {
 15+ __emcore_app_base = .;
 16+ KEEP(.emcoreentrypoint*)
 17+ *(.emcoreentrypoint*)
 18+ *(.text*)
 19+ *(.glue_7)
 20+ *(.glue_7t)
 21+ . = ALIGN(0x10);
 22+ } > VIRTUAL
 23+
 24+ .data :
 25+ {
 26+ *(.rodata*)
 27+ . = ALIGN(0x4);
 28+ *(.data*)
 29+ . = ALIGN(0x10);
 30+ } > VIRTUAL
 31+
 32+ .bss (NOLOAD) :
 33+ {
 34+ *(.bss*)
 35+ *(COMMON)
 36+ } > VIRTUAL
 37+
 38+ /DISCARD/ :
 39+ {
 40+ *(.eh_frame)
 41+ }
 42+
 43+}
Index: apps/beeper/main.c
——@@ -0,0 +1,116 @@
 2+//
 3+//
 4+// Copyright 2011 TheSeven, user890104
 5+//
 6+//
 7+// This file is part of emCORE.
 8+//
 9+// emCORE is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emCORE is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emCORE. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#include "emcoreapp.h"
 26+#include "beep.h"
 27+
 28+void playsong(void *buf, size_t size);
 29+
 30+static void main()
 31+{
 32+ if (0x47324e49 != get_platform_id()) // IN2G
 33+ {
 34+ cputs(3, "Your device is not supported!\n");
 35+ return;
 36+ }
 37+
 38+ size_t size;
 39+ int fd;
 40+ void *buf;
 41+ unsigned char play;
 42+
 43+ play = 0;
 44+ fd = file_open("/song.dat", O_RDONLY);
 45+
 46+ if (fd <= 0)
 47+ {
 48+ cputs(3, "Unable to open /song.dat!\n");
 49+ return;
 50+ }
 51+
 52+ cputs(3, "File opened\n");
 53+ size = filesize(fd);
 54+
 55+ if (size <= 0)
 56+ {
 57+ close(fd);
 58+ cputs(3, "Unable to get file size or file is empty!\n");
 59+ return;
 60+ }
 61+
 62+ cprintf(3, "File size: %d bytes\n", size);
 63+
 64+ if (0 != size % 8)
 65+ {
 66+ close(fd);
 67+ cputs(3, "Invalid file, unable to continue!\n");
 68+ return;
 69+ }
 70+
 71+ buf = memalign(0x10, size);
 72+
 73+ if (!buf)
 74+ {
 75+ close(fd);
 76+ cputs(3, "Memory allocation failed!\n");
 77+ return;
 78+ }
 79+
 80+ if (size != read(fd, buf, size))
 81+ {
 82+ free(buf);
 83+ close(fd);
 84+ cputs(3, "Read error!\n");
 85+ return;
 86+ }
 87+
 88+ cputs(3, "Read successful\n");
 89+ close(fd);
 90+ cputs(3, "File closed\n");
 91+ playsong(buf, size);
 92+ free(buf);
 93+}
 94+
 95+void playsong(void *buf, size_t size) {
 96+ int i;
 97+ unsigned int cycles[size / 8], lengths[size / 8];
 98+
 99+ for (i = 0; i < size / 8; ++i)
 100+ {
 101+ cycles[i] = *((unsigned int *)(buf) + i + i);
 102+ lengths[i] = *((unsigned int *)(buf) + i + i + 1);
 103+ }
 104+
 105+ for (i = 0; i < size / 8; ++i)
 106+ {
 107+ if (0 == cycles[i])
 108+ {
 109+ sleep(lengths[i]);
 110+ continue;
 111+ }
 112+
 113+ singlebeep(cycles[i], lengths[i]);
 114+ }
 115+}
 116+
 117+EMCORE_APP_HEADER("Beeper", main, 127)
Index: apps/beeper/mario.txt
——@@ -0,0 +1,83 @@
 2+# Super Mario theme song
 3+# still unfinished, notes found on Internet
 4+# col1 = note, col2 = octave, col3 = duration (1 / x)
 5+# t = tempo (bpm), p = pause
 6+
 7+t 216
 8+
 9+e 5 8
 10+e 5 8
 11+p 0 8
 12+e 5 8
 13+p 0 8
 14+c 5 8
 15+e 5 8
 16+p 0 8
 17+
 18+g 5 4
 19+p 0 4
 20+g 4 4
 21+p 0 4
 22+
 23+c 5 4
 24+p 0 8
 25+g 4 4
 26+p 0 8
 27+e 4 4
 28+
 29+p 0 8
 30+a 4 8
 31+p 0 8
 32+b 4 8
 33+p 0 8
 34+a# 4 8
 35+a 4 8
 36+p 0 8
 37+
 38+g 4 8
 39+e 5 8
 40+p 0 8
 41+g 5 8
 42+a 5 8
 43+p 0 8
 44+f 5 8
 45+g 5 8
 46+
 47+p 0 8
 48+e 5 8
 49+p 0 8
 50+c 5 8
 51+d 5 8
 52+b 4 8
 53+p 0 4
 54+
 55+c 5 4
 56+p 0 8
 57+g 4 4
 58+p 0 8
 59+e 4 4
 60+
 61+p 0 8
 62+a 4 8
 63+p 0 8
 64+b 4 8
 65+p 0 8
 66+a# 4 8
 67+a 4 8
 68+p 0 8
 69+
 70+g 4 8
 71+e 5 8
 72+p 0 8
 73+g 5 8
 74+a 5 8
 75+p 0 8
 76+f 5 8
 77+g 5 8
 78+
 79+p 0 8
 80+e 5 8
 81+p 0 8
 82+c 5 8
 83+d 5 8
 84+b 4 8
\ No newline at end of file
Index: apps/beeper/convert.php
——@@ -0,0 +1,126 @@
 2+<?php
 3+//
 4+//
 5+// Copyright 2011 user890104
 6+//
 7+//
 8+// This file is part of emCORE.
 9+//
 10+// emCORE is free software: you can redistribute it and/or
 11+// modify it under the terms of the GNU General Public License as
 12+// published by the Free Software Foundation, either version 2 of the
 13+// License, or (at your option) any later version.
 14+//
 15+// emCORE is distributed in the hope that it will be useful,
 16+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 17+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 18+// See the GNU General Public License for more details.
 19+//
 20+// You should have received a copy of the GNU General Public License along
 21+// with emCORE. If not, see <http://www.gnu.org/licenses/>.
 22+//
 23+//
 24+
 25+
 26+if (
 27+ empty($_SERVER['argc']) || empty($_SERVER['argv']) ||
 28+ !is_int($_SERVER['argc']) || !is_array($_SERVER['argv']) ||
 29+ 3 !== $_SERVER['argc'] || 3 !== count($_SERVER['argv'])
 30+)
 31+{
 32+ echo 'usage: ', $_SERVER['argv'][0], ' <input> <output>', "\n";
 33+ exit;
 34+}
 35+
 36+$start_oct = 0;
 37+$end_oct = 9;
 38+
 39+$notes = array();
 40+
 41+for ($oct = $start_oct; $oct < $end_oct; ++$oct)
 42+{
 43+ $notes[$oct] = array();
 44+ $notes[$oct][-1] = 0;
 45+
 46+ for ($note = 0; $note < 12; ++$note)
 47+ {
 48+ $freq = pow(2, ($oct * 12 + $note - 45) / 12) * 440;
 49+
 50+ $notes[$oct][$note] = $freq;
 51+ }
 52+}
 53+
 54+$note_names = array(
 55+ 'X' => -2,
 56+ 'P' => -1,
 57+ 'C' => 0,
 58+ 'C#' => 1,
 59+ 'D' => 2,
 60+ 'D#' => 3,
 61+ 'E' => 4,
 62+ 'F' => 5,
 63+ 'F#' => 6,
 64+ 'G' => 7,
 65+ 'G#' => 8,
 66+ 'A' => 9,
 67+ 'A#' => 10,
 68+ 'B' => 11,
 69+);
 70+
 71+// ----------------------
 72+
 73+$beat_len = 0;
 74+
 75+$note_lengths = array(
 76+ '1+1+1/4' => 9,
 77+ '1+1' => 8,
 78+ '1' => 4,
 79+ '2.5' => 3,
 80+ '2+1/4' => 2.5,
 81+ '2' => 2,
 82+ '4.5' => 1.5,
 83+ '4+1/2' => 1.5,
 84+ '4' => 1,
 85+ '8' => .5,
 86+ '8+1/2+1/4' => .3 + 5/4,
 87+ '16' => .25,
 88+ '32' => .125,
 89+);
 90+
 91+file_put_contents($_SERVER['argv'][2], '');
 92+
 93+$file = file($_SERVER['argv'][1]);
 94+$file = array_map('trim', $file);
 95+$file = array_map('strtoupper', $file);
 96+
 97+foreach ($file as $line)
 98+{
 99+ if (strlen($line) < 1 || '#' === $line[0])
 100+ {
 101+ continue;
 102+ }
 103+ elseif ('T' == $line[0])
 104+ {
 105+ $beat_len = 60 / trim(substr($line, 1));
 106+ continue;
 107+ }
 108+
 109+ if (empty($beat_len))
 110+ {
 111+ continue;
 112+ }
 113+ $line = preg_replace('/\s+/', ' ', $line);
 114+ @list($note, $oct, $len) = explode(' ', $line);
 115+
 116+ $note = $note_names[$note];
 117+
 118+ if (-2 === $note)
 119+ {
 120+ exit;
 121+ }
 122+
 123+ $len = $note_lengths[$len] * $beat_len;
 124+
 125+ file_put_contents($_SERVER['argv'][2], pack('VV', round($notes[$oct][$note] ? 91225 / $notes[$oct][$note] : 0), round($len * 1000000)), FILE_APPEND);
 126+}
 127+?>
Index: apps/beeper/version.h
——@@ -0,0 +1,36 @@
 2+//
 3+//
 4+// Copyright 2010 TheSeven
 5+//
 6+//
 7+// This file is part of emCORE.
 8+//
 9+// emCORE is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emCORE is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emCORE. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#ifndef __VERSION_H__
 26+#define __VERSION_H__
 27+
 28+
 29+#define VERSION "0.0.1pre"
 30+#define VERSION_MAJOR 0
 31+#define VERSION_MINOR 0
 32+#define VERSION_PATCH 1
 33+#define VERSION_SVN "$REVISION$"
 34+#define VERSION_SVN_INT $REVISIONINT$
 35+
 36+
 37+#endif
Index: apps/beeper/beep.c
——@@ -0,0 +1,43 @@
 2+//
 3+//
 4+// Copyright 2011 TheSeven, user890104
 5+//
 6+//
 7+// This file is part of emCORE.
 8+//
 9+// emCORE is free software: you can redistribute it and/or
 10+// modify it under the terms of the GNU General Public License as
 11+// published by the Free Software Foundation, either version 2 of the
 12+// License, or (at your option) any later version.
 13+//
 14+// emCORE is distributed in the hope that it will be useful,
 15+// but WITHOUT ANY WARRANTY; without even the implied warranty of
 16+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 17+// See the GNU General Public License for more details.
 18+//
 19+// You should have received a copy of the GNU General Public License along
 20+// with emCORE. If not, see <http://www.gnu.org/licenses/>.
 21+//
 22+//
 23+
 24+
 25+#include "emcoreapp.h"
 26+#include "beep.h"
 27+
 28+void singlebeep(unsigned int cycles, unsigned int time)
 29+{
 30+ /* configure timer for 100 kHz */
 31+ TDCMD = (1 << 1); /* TD_CLR */
 32+ TDPRE = 30 - 1; /* prescaler */
 33+ TDCON =
 34+ //(1 << 13) | /* TD_INT1_EN */
 35+ //(0 << 12) | /* TD_INT0_EN */
 36+ //(0 << 11) | /* TD_START */
 37+ (2 << 8) | /* TD_CS = PCLK / 16 */
 38+ (1 << 4); /* TD_MODE_SEL = PWM mode */
 39+ TDDATA0 = cycles; /* set interval period */
 40+ TDDATA1 = cycles << 1; /* set interval period */
 41+ TDCMD = (1 << 0); /* TD_EN */
 42+ sleep(time);
 43+ TDCMD = (1 << 1); /* TD_CLR */
 44+}
Index: apps/beeper/Makefile
——@@ -0,0 +1,120 @@
 2+NAME := beeper
 3+STACKSIZE := 4096
 4+COMPRESS := true
 5+
 6+EMCOREDIR ?= ../../emcore/trunk/
 7+
 8+ifeq ($(shell uname),WindowsNT)
 9+CCACHE :=
 10+else
 11+CCACHE := $(shell which ccache)
 12+endif
 13+
 14+CROSS ?= arm-elf-eabi-
 15+CC := $(CCACHE) $(CROSS)gcc
 16+AS := $(CROSS)as
 17+LD := $(CROSS)ld
 18+OBJCOPY := $(CROSS)objcopy
 19+ELF2ECA := $(CROSS)elf2emcoreapp
 20+
 21+LIBINCLUDES :=
 22+
 23+CFLAGS += -Os -fno-pie -fno-stack-protector -fomit-frame-pointer -I. -I$(EMCOREDIR)/export $(LIBINCLUDES) -ffunction-sections -fdata-sections -mcpu=arm940t -DARM_ARCH=4
 24+LDFLAGS += "$(shell $(CC) -print-libgcc-file-name)" --emit-relocs --gc-sections
 25+
 26+preprocess = $(shell $(CC) $(PPCFLAGS) $(2) -E -P -x c $(1) | grep -v "^\#")
 27+preprocesspaths = $(shell $(CC) $(PPCFLAGS) $(2) -E -P -x c $(1) | grep -v "^\#" | sed -e "s:^..*:$(dir $(1))&:" | sed -e "s:^\\./::")
 28+
 29+REVISION := $(shell svnversion .)
 30+REVISIONINT := $(shell echo $(REVISION) | sed -e "s/[^0-9].*$$//")
 31+
 32+HELPERS := build/__emcore_armhelpers.o
 33+
 34+SRC := $(call preprocesspaths,SOURCES,-I. -I..)
 35+OBJ := $(SRC:%.c=build/%.o)
 36+OBJ := $(OBJ:%.S=build/%.o) $(HELPERS)
 37+
 38+all: $(NAME)
 39+
 40+-include $(OBJ:%=%.dep)
 41+
 42+$(NAME): build/$(NAME).emcoreapp
 43+
 44+build/$(NAME).emcoreapp: build/$(NAME).elf
 45+ @echo [EMCAPP] $<
 46+ifeq ($(COMPRESS),true)
 47+ @$(ELF2ECA) -z -s $(STACKSIZE) -o $@ $^
 48+else
 49+ @$(ELF2ECA) -s $(STACKSIZE) -o $@ $^
 50+endif
 51+
 52+build/$(NAME).elf: ls.x $(OBJ)
 53+ @echo [LD] $@
 54+ @$(LD) $(LDFLAGS) -o $@ -T ls.x $(OBJ)
 55+
 56+build/%.o: %.c build/version.h
 57+ @echo [CC] $<
 58+ifeq ($(shell uname),WindowsNT)
 59+ @-if not exist $(subst /,\,$(dir $@)) md $(subst /,\,$(dir $@))
 60+else
 61+ @-mkdir -p $(dir $@)
 62+endif
 63+ @$(CC) -c $(CFLAGS) -o $@ $<
 64+ @$(CC) -MM $(CFLAGS) $< > $@.dep.tmp
 65+ @sed -e "s|.*:|$@:|" < $@.dep.tmp > $@.dep
 66+ifeq ($(shell uname),WindowsNT)
 67+ @sed -e "s/.*://" -e "s/\\$$//" < $@.dep.tmp | fmt -1 | sed -e "s/^ *//" -e "s/$$/:/" >> $@.dep
 68+else
 69+ @sed -e 's/.*://' -e 's/\\$$//' < $@.dep.tmp | fmt -1 | sed -e 's/^ *//' -e 's/$$/:/' >> $@.dep
 70+endif
 71+ @rm -f $@.dep.tmp
 72+
 73+build/%.o: %.S build/version.h
 74+ @echo [CC] $<
 75+ifeq ($(shell uname),WindowsNT)
 76+ @-if not exist $(subst /,\,$(dir $@)) md $(subst /,\,$(dir $@))
 77+else
 78+ @-mkdir -p $(dir $@)
 79+endif
 80+ @$(CC) -c $(CFLAGS) -o $@ $<
 81+ @$(CC) -MM $(CFLAGS) $< > $@.dep.tmp
 82+ @sed -e "s|.*:|$@:|" < $@.dep.tmp > $@.dep
 83+ifeq ($(shell uname),WindowsNT)
 84+ @sed -e "s/.*://" -e "s/\\$$//" < $@.dep.tmp | fmt -1 | sed -e "s/^ *//" -e "s/$$/:/" >> $@.dep
 85+else
 86+ @sed -e 's/.*://' -e 's/\\$$//' < $@.dep.tmp | fmt -1 | sed -e 's/^ *//' -e 's/$$/:/' >> $@.dep
 87+endif
 88+ @rm -f $@.dep.tmp
 89+
 90+build/__emcore_%.o: $(EMCOREDIR)/export/%.c
 91+ @echo [CC] $<
 92+ifeq ($(shell uname),WindowsNT)
 93+ @-if not exist $(subst /,\,$(dir $@)) md $(subst /,\,$(dir $@))
 94+else
 95+ @-mkdir -p $(dir $@)
 96+endif
 97+ @$(CC) -c $(CFLAGS) -o $@ $<
 98+
 99+build/__emcore_%.o: $(EMCOREDIR)/export/%.S
 100+ @echo [CC] $<
 101+ifeq ($(shell uname),WindowsNT)
 102+ @-if not exist $(subst /,\,$(dir $@)) md $(subst /,\,$(dir $@))
 103+else
 104+ @-mkdir -p $(dir $@)
 105+endif
 106+ @$(CC) -c $(CFLAGS) -o $@ $<
 107+
 108+build/version.h: version.h .svn/entries
 109+ @echo [PP] $<
 110+ifeq ($(shell uname),WindowsNT)
 111+ @-if not exist build md build
 112+ @sed -e "s/\$$REVISION\$$/$(REVISION)/" -e "s/\$$REVISIONINT\$$/$(REVISIONINT)/" < $< > $@
 113+else
 114+ @-mkdir -p build
 115+ @sed -e 's/\$$REVISION\$$/$(REVISION)/' -e 's/\$$REVISIONINT\$$/$(REVISIONINT)/' < $< > $@
 116+endif
 117+
 118+clean:
 119+ @rm -rf build
 120+
 121+.PHONY: all clean $(NAME)
Retrieved from "https://freemyipod.org/wiki/Special:Code/freemyipod/714"