FreeCalypso > hg > fc-tourmaline

annotate doc/Compiling @ 214:adfdbcd360fd

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backlight evolution: API between Condat driver and MFW With this change, the API between the Condat backlight driver and its user in MFW now carries more abstract backlight state codes (fully off, fully on, in call, charging boot mode) instead of 0-255 levels. This change is needed in order to more properly support different hardware targets with different capabilities and approaches in terms of backlight handling.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 23 Apr 2021 23:52:02 +0000
parents a62e5bf88434
children
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1 Preparing the development and build environment
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2 ===============================================
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3
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4 In order to compile our FreeCalypso Tourmaline firmware, you will need a
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5 Unix/Linux system. Even though we are using a compiler which we got in the
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6 form of Windows .exe binaries and thus have to use Wine (see below), everything
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7 that we have built on top of it is Unix-based. The Mother currently uses
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8 Slackware Linux release 14.2 (32-bit) and previously used Slackware 13.37,
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9 also 32-bit.
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10
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11 You will need to install the following 3 pieces of software on whatever
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12 machine you will use to run the FC Tourmaline build process:
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13
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14 1. Wine: self-explanatory. The Mother uses the following Slackware package:
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15
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16 https://www.freecalypso.org/members/falcon/slackware/wine-1.5.23-i486-1sg.txz
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17
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18 I originally used it with Slackware 13.37 and I am still able to use it
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19 with 14.2 without any issues.
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20
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21 2. FreeCalypso Wine environment:
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22
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23 ftp://ftp.freecalypso.org/pub/GSM/TI_src/wine/installed-env.tar.xz
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24
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25 Extract the content of the above tarball into your ~/.wine/drive_c
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26 directory - that's all there is to it!
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27
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28 3. nowhine wrapper around Wine:
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29
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30 ftp://ftp.freecalypso.org/pub/GSM/TI_src/wine/nowhine.c
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31
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32 The purpose of this wrapper is to suppress the following obnoxious whine
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33 which wine emits on my system:
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34
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35 preloader: Warning: failed to reserve range 00010000-00110000
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36
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37 Wine will also emits a bunch of other whines if you have to run it
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38 in an environment without an X11 display (e.g., on a machine that you
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39 ssh into), and our nowhine wrapper suppresses those as well.
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40
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41 If wine does not emit those preloader whines on your system and you
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42 never find yourself in a situation of having to run without an X11
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43 display and thus you find our nowhine wrapper to be unnecessary,
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44 you can skip the wrapper and create a nowhine symlink pointing directly
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45 to wine.
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46
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47 Compiling the local helper utilities
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48 ====================================
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49
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50 (cd helpers; make)
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51
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52 Do the above. Most of the build helper scripts used in the FC Tourmaline build
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53 system are written in Bourne shell, but a few were easier to implement in C.
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54 You need to compile these C helper utilities before you can run an actual FC
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55 Tourmaline firmware build, but these utilities are totally ad hoc and specific
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56 to the needs of our fw build system, hence they are not meant to be installed
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57 globally on your system - instead they stay within the fc-tourmaline tree. You
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58 just need to run make in the helpers directory once before any actual firmware
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59 builds.
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60
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61 Actually building the firmware
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62 ==============================
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63
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64 In order to build our FreeCalypso Tourmaline firmware for a particular target
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65 in a particular configuration, run a command like this from the top level of
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66 the fc-tourmaline tree:
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67
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68 ./configure.sh luna2 bigcolor-gprs
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69
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70 The first required argument to the configure.sh script selects the hardware
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71 target, the second required argument selects the functional configuration, and
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72 any further arguments beyond these two (optional) allow changing various
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73 configurable settings that go beyond basic functional selection and aren't
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74 strictly fixed by the hardware target.
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75
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76 As of this writing, the following hardware targets are supported:
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77
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78 c11x Motorola C11x/12x
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79 c139 Motorola C139/140
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80 c155 Motorola C155/156
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81 fcdev3b FreeCalypso FCDEV3B
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82 gtamodem The Calypso GSM/GPRS modem in Openmoko GTA01/02 smartphones
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83 gtm900mgc Huawei GTM900, hardware variant MGC1GSMT or MGC2GSMT
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84 j100 Sony Ericsson J100
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85 luna1 FreeCalypso Luna, based on iWOW DSK v4.0 or v5.0 motherboard
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86 luna2 FreeCalypso Luna, based on FC Caramel2 motherboard
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87 pirelli Pirelli DP-L10
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88 tangomdm FreeCalypso Tango standard modem config
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89
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90 The second required argument selects the basic functional configuration; these
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91 functional config stanzas appear in the configs directory. The following
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92 functional configurations are currently available:
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93
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94 bigcolor-gprs & bigcolor-vo
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95
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96 These are UI-enabled configurations with the big (176x220 pixel) color
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97 version of the UI. These functional configs can be built only for
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98 luna1 and luna2 targets.
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99
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100 smallbw
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101
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102 Small B&W UI configuration - 96x64 pixel black&white UI version. This
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103 functional config can be built for c139, luna1 and luna2 targets. When
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104 running on Luna, the logical 96x64 pixel B&W LCD is centered in the
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105 middle of the 176x220 pixel physical LCD, surrounded by a pale magenta
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106 border.
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107
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108 bwtest
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109
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110 This one is a special intermediate configuration is that the UI layers
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111 are built in the smallbw config, but the underlying R2D framebuffer
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112 driver is 176x220 pixel B&W, rather than 96x64 pixel B&W. This config
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113 can only be built for Luna targets; it originates from TI's own
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114 configuration of running their !LSCREEN (smallbw) UI on D-Sample boards
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115 with R2D driver in the BW_D_Sample config.
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116
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117 stdmodem
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118
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119 Standard modem config, all data services enabled, no UI functionality
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120 included. Supported targets are fcdev3b, gtamodem, gtm900mgc and
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121 tangomdm.
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122
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123 vpm
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124
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125 See the Voice-pseudo-modem article. This functional config is
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126 applicable to c11x, c139, c155, j100 and pirelli targets.
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127
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128 Each configuration is built in its own directory; the name of this build
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129 directory takes the form of build-$TARGET-$CONFIG$SUFFIX, i.e., for the example
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130 configure.sh line above, the resulting build directory will be named
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131 build-luna2-bigcolor-gprs. The $SUFFIX part is empty by default, but can be set
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132 on the command line in order to distinguish non-standard builds that had some
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133 tunable settings changed to values other than the default. For example, if you
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134 are building modem firmware for an FCDEV3B V1 board where you need to disable
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135 sleep, you should run the configure script as follows:
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136
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137 ./configure.sh fcdev3b stdmodem DISABLE_SLEEP=1 SUFFIX=-nosleep
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138
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139 The build directory would then become build-fcdev3b-stdmodem-nosleep, and the
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140 specified suffix will also be included in the firmware version ID string that
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141 gets compiled into the image.
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142
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143 To actually compile the firmware, cd into the created build directory and run
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144 make there. Unfortunately the use of TI's proprietary compiler via Wine makes
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145 the build quite slow, but there is a trick to speed it up: if you run some
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146 other Wine program that stays open and does not exit on its own (e.g., wine cmd)
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147 in another window and leave it open while you run your FC Tourmaline fw build,
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148 the build will proceed much faster - the presence of another Wine process using
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149 the wineserver environment will keep Wine from shutting this environment down
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150 and restarting it for every individual cl470 run, i.e., for each individual C
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151 source file.
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152
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153 When the build is done, the flashable firmware image will be in fwimage.bin.
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154 This image is to be flashed with fc-loadtool at a target-dependent base address.
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155 The build system also produces a short text file named flash-script which is a
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156 flashing command script for fc-loadtool that erases the correct range of flash
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157 sectors and then programs fwimage.bin at the right address.
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158
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159 When building firmware for the FCDEV3B or for the Pirelli, one can build either
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160 a flashable image or a RAM-loadable one - or both. Because this part of the
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161 build system is common with other targets for which only flash images can be
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162 produced, the Makefile always builds the flashable image by default -
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163 fwimage.bin is always meant for flash and never for RAM. To build a RAM-
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164 loadable image when the target allows it, run 'make ram' - the image will be in
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165 ramimage.srec, which you can then load and run on the target with FreeCalypso
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166 host tool fc-xram.
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167
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168 Cached libraries
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169 ================
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170
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171 In the build architecture of all TCS211-based firmwares including Tourmaline,
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172 each fw component is first compiled into a linkable library (*.lib file with
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173 TI's TMS470 toolchain), and then these libraries are linked together into the
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174 final code image. Early in FreeCalypso project history many of these component
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175 libraries were blobs, meaning that we had to use prebuilt libraries for which
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176 we had no corresponding source. Our fw has now been almost fully deblobbed,
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177 meaning that we have transitioned from blobs to recompilation from source for
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178 almost all of our fw components. But this deblobbing has had an unfortunate
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179 downside: because our Wine-based compiler is very slow, every time we deblobbed
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180 a component library, build times would get longer and longer.
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181
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182 FC Tourmaline introduces a partial solution to this problem in the form of
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183 cached libs. Some component libraries are completely independent of
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184 configuration particulars, i.e., they remain exactly the same no matter which
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185 Calypso target you are building firmware for, and are likewise unaffected by
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186 our various supported functional configs. Prebuilt versions of these config-
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187 independent libs have been checked into the cache directory of our source tree,
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188 and Tourmaline fw builds use these cached libs by default. These cached libs
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189 are NOT blobs in that we do have the corresponding source for them, and the
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190 versions that are checked in have been built by us, not by any evil source-
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191 withholding third parties. You can disable the use of cached libs and force
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192 full recompilation from source by adding a USE_CACHE=0 argument to your
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193 configure.sh line.
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194
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195 Running on the hardware
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196 =======================
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197
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198 In order to run the firmware you have built on your Calypso phone or modem
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199 (flash or run in RAM as appropriate), you will need to use FreeCalypso host
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200 tools. The current version at any given moment can be found at this URL:
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201
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202 ftp://ftp.freecalypso.org/pub/GSM/FreeCalypso/fc-host-tools-latest.tar.bz2
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203
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204 Please see target-specific notes for more details.