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initial round of documentation
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 03 Oct 2016 04:26:16 +0000
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children 60cc20bfe18f
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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 Magnetite 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. This author uses Slackware Linux
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8 version 13.37, 32-bit.
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9
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10 You will need to install the following four pieces of software on whatever
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11 machine you will use to run the FC Magnetite build process:
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12
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13 1. Wine: self-explanatory.
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14
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15 2. FreeCalypso Wine environment:
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16
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17 ftp://ftp.freecalypso.org/pub/GSM/TI_src/wine/installed-env.tar.xz
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18
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19 Extract the content of the above tarball into your ~/.wine/drive_c
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20 directory - that's all there is to it!
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21
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22 3. nowhine wrapper around Wine:
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23
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24 ftp://ftp.freecalypso.org/pub/GSM/TI_src/wine/nowhine.c
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25
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26 Note that Wine may produce different whines on your system than it
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27 does on mine, in which case if you wish to be relieved of those
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28 whines, you'll need to edit my nowhine.c hack for your situation.
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29
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30 4. mokosrec2bin flash image file format conversion utility:
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31
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32 ftp://ftp.freecalypso.org/pub/GSM/GTA02/gsm-fw/mokosrec2bin.c
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33
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34 Note that the four host software pieces above are exactly the same as what has
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35 been needed to build our previous TCS211-based fw works such as leo2moko-debug
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36 and tcs211-c139 - thus if you have built those previously, you should already
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37 have all of the necessary host tools.
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38
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39 Compiling the local helper utilities
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40 ====================================
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41
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42 (cd helpers; make)
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43
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44 Do the above. Most of the build helper scripts used in the FC Magnetite build
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45 system are written in Bourne shell, but a few were easier to implement in C.
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46 You need to compile these C helper utilities before you can run an actual FC
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47 Magnetite firmware build, but these utilities are totally ad hoc and specific
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48 to the needs of our fw build system, hence they are not meant to be installed
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49 globally on your system - instead they stay within the fc-magnetite tree. You
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50 just need to run make in the helpers directory once before any actual firmware
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51 builds.
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52
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53 Actually building the firmware
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54 ==============================
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55
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56 In order to build our FreeCalypso Magnetite firmware for a particular target in
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57 a particular configuration, run a command like this from the top level of the
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58 fc-magnetite tree:
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59
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60 ./configure.sh gtamodem l1reconst
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61
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62 The first argument to the configure.sh script selects the target, and the second
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63 argument selects the configuration. As of this writing, the following targets
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64 are supported:
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65
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66 c139 Motorola C139
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67 fcdev3b FreeCalypso FCDEV3B (hardware designed but not built yet)
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68 gtamodem The Calypso GSM/GPRS modem in Openmoko GTA01/02 smartphones
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69 pirelli Pirelli DP-L10
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70
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71 For the available configurations (the second required argument to the configure
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72 script), look in the configs directory. As of this writing, the most
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73 interesting configuration is l1reconst - it was named so because it rebuilds L1
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74 from the reconstructed source.
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75
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76 Each configuration is built in its own directory; by default the build directory
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77 is named build-$TARGET-$CONFIG, i.e., for the example configure.sh line above,
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78 the resulting build directory will be build-gtamodem-l1reconst. You can change
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79 the name of this directory by appending a BUILD_DIR=dir argument to the
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80 ./configure.sh line after the two required arguments.
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81
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82 To actually compile the firmware, cd into the created build directory and run
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83 make there. Unfortunately the use of TI's proprietary compiler via Wine makes
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84 the build very slow - it takes about 42 minutes on my machine. When it's all
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85 done, the flashable firmware image will be in fwimage.bin. This image is to be
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86 flashed with fc-loadtool at address 0x10000 on the C139 and at address 0 on all
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87 other targets.
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88
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89 When building firmware for the Pirelli or for future FreeCalypso hardware that
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90 will use the same high capacity flash+pSRAM chip, one can build either a
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91 flashable image or a RAM-loadable one - or both. Because this part of the
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92 build system is common with other targets for which only flash images can be
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93 produced, the Makefile always builds the flashable image by default -
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94 fwimage.bin is always meant for flash and never for RAM. To build a RAM-
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95 loadable image when the target allows it, run 'make ram' - the image will be in
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96 ramimage.srec, which you can then load and run on the target with FreeCalypso
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97 host tool fc-xram.
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98
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99 Running on the hardware
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100 =======================
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101
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102 In order to run the firmware you have built on your Calypso phone or modem
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103 (flash or run in RAM as appropriate), you will need to use FreeCalypso host
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104 tools. As of this writing, the latest packaged release is this one:
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105
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106 ftp://ftp.freecalypso.org/pub/GSM/FreeCalypso/fc-host-tools-r4.tar.bz2
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107
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108 Please see target-specific notes for more details.