FreeCalypso > hg > fc-tourmaline

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bwsplash/README: additional notes
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 28 Mar 2021 23:51:56 +0000
parents a62e5bf88434
children
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50
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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.