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!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 08 Jun 2023 08:23:37 +0000
parents a62e5bf88434
children
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50
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1 The following Bourne shell variables can be set on the ./configure.sh command
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2 line to tweak the firmware build configuration:
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3
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4 ALLOW_CSIM_GSM
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5
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6 Per TI's original design, the AT+CSIM command does not allow GSM APDUs
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7 of class 0xA0. Openmoko found some need for them, and they patched
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8 their modem fw to allow these APDUs with AT+CSIM. With our new hybrid
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9 modem fw this policy setting is configurable at build time; the default
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10 is ALLOW_CSIM_GSM=1 (GSM APDUs allowed).
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11
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12 DISABLE_SLEEP
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13
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14 The general default is DISABLE_SLEEP=0, and the firmware automatically
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15 enables all of the chipset's available sleep modes on boot. Setting
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16 DISABLE_SLEEP=1 causes all sleep modes to be disabled by default on
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17 boot (they can still be enabled with the AT%SLEEP command); this
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18 setting is needed for FCDEV3B V1 boards that have a hardware bug that
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19 causes breakage when sleep modes are enabled.
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20
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21 FCHG_STATE
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22
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23 This setting enables or disables the FCHG battery charging driver.
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24 This driver can be enabled even on targets where no charging hw exists
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25 (it won't do anything without explicit configuration), and our UI
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26 firmware will soon require FCHG to be always present - hence our current
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27 config mechanism already sets FCHG_STATE=1 for UI-enabled configs. If
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28 the firmware is built in a non-UI modem or VPM configuration, the
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29 default FCHG_STATE setting depends on the target: enabled on targets
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30 that have battery charging hardware (c11x, c139, c155, j100, pirelli)
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31 and disabled otherwise.
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32
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33 L1_DYN_DSP_DWNLD
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34
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35 This setting enables TI's dynamic DSP patch download mechanism. When
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36 the firmware is built for a Calypso target with DSP ROM version 36 in
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37 the silicon (all FreeCalypso-made hw and most of the supported legacy
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38 targets), L1_DYN_DSP_DWNLD is enabled by default and needs to be kept
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39 enabled for correct operation: the patch code we got from TI for this
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40 ROM is the dynamic download version, and the ARM-side L1 code expects
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41 all of these patches to be present, both the static part and the
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42 dynamic parts. However, one can build our fw with L1_DYN_DSP_DWNLD=0
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43 for experimental testing, to see what breaks when the dynamic patches
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44 are omitted.
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45
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46 L1_VOICE_MEMO_AMR
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47
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48 This setting enables or disables support in L1 and in the RiViera Audio
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49 Service for AMR voice memo recording and playback. This code has not
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50 been properly studied yet and no test AT commands are provided for it,
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51 but it is enabled by default like in TI's original TCS211 fw.
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52
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53 MELODY_E2
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54
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55 This setting enables or disables support in L1 and in the RiViera Audio
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56 Service for playing E2-format melodies. The default is MELODY_E2=1
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57 like in TI's original TCS211 fw. Note that Melody E1 support is always
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58 enabled; setting MELODY_E2=0 disables only Melody E2, but not E1.
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59
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60 MEMSUPER
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61
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62 This setting enables the memory supervision feature in TI's GPF and in
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63 the G23M protocol stack built on top of it. This code has not been
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64 properly studied yet; play with it at your own risk.
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65
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66 OSL
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67
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68 This flag selects between original blob and reconstructed C versions of
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69 the OSL glue component of GPF - see the Blob-status article.
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70
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71 OSX
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72
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73 This flag selects between original blob and reconstructed C versions of
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74 the OSX glue component of GPF - see the Blob-status article.
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75
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76 RVTMUX_ON_MODEM
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77
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78 This setting configures the usage of Calypso UARTs. RVTMUX_ON_MODEM=0
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79 puts the AT command interface on the MODEM UART and RVTMUX on the IrDA
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80 UART (TI's intended config and the default on sensible hw targets);
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81 RVTMUX_ON_MODEM=1 (default on the crippled C1xx targets) puts RVTMUX on
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82 the MODEM UART, sacrificing the standard AT command interface.
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83
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84 SERIAL_DYNAMIC_SWITCH
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85
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86 TI's TCS211 fw includes a provision (only for Bluetooth-enabled fw in
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87 TI's original) to switch one UART between the AT command interface and
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88 RVTMUX while the other UART is fixed for Bluetooth. In FreeCalypso we
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89 have changed this code to work without Bluetooth, for the purpose of
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90 switching the user-facing MODEM UART between AT commands and RVTMUX,
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91 but the mechanism does not work properly yet and is disabled by default.
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92 Enable it with SERIAL_DYNAMIC_SWITCH=1 if you would like to play with
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93 it.
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94
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95 SPEECH_RECO
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96
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97 This setting enables or disables support in L1 and in the RiViera Audio
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98 Service for TI's speech recognition mechanism. This code and the
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99 underlying DSP facility itself have not been properly studied yet and
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100 no test AT commands are provided for it, but it is enabled by default
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101 like in TI's original TCS211 fw.
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102
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103 SUFFIX
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104
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105 This setting is solely for configuration management. If you make a
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106 build with any of the settings described in this document changed from
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107 the default, you should also pass a SUFFIX=-xxx argument so your special
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108 build will be appropriately identified in the build directory name and
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109 in the firmware version ID string compiled into the image. The naming
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110 of suffixes is up to you, but here are some examples:
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111
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112 DISABLE_SLEEP=1 SUFFIX=-nosleep
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113 L1_DYN_DSP_DWNLD=0 SUFFIX=-nodyn
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114 MELODY_E2=0 SUFFIX=-noe2
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115 MEMSUPER=2 SUFFIX=-ps
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116 SERIAL_DYNAMIC_SWITCH=1 SUFFIX=-sds
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117 SPEECH_RECO=0 SUFFIX=-nosr
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118 TI_PROFILER=1 SUFFIX=-prf
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119 TR_BAUD_CONFIG=TR_BAUD_812500 SUFFIX=-812500
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120 USE_STR2IND=1 SUFFIX=-s2i
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121
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122 TI_PROFILER
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123
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124 TI's original firmware architecture had a built-in profiler (program
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125 counter sampler) enabled with TI_PROFILER=1; we (FreeCalypso) are just
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126 beginning to experiment with this debug feature in late 2020.
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127
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128 TRACEMASK_IN_FFS
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129
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130 TI's Test Interface (TIF) component in the GPF realm includes an
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131 optional feature for saving trace masks in FFS, but TI's production
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132 firmwares had it disabled. We have now switched to recompiling the
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133 component in question from source, but we still keep this
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134 TRACEMASK_IN_FFS code disabled by default, at least for now.
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135 Set TRACEMASK_IN_FFS=1 to enable this code in GPF.
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136
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137 TR_BAUD_CONFIG
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138
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139 The value of this symbol is an alphanumeric keyword of the form
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140 TR_BAUD_xxxxxx; the default is TR_BAUD_115200. See
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141 src/cs/drivers/drv_core/uart/traceswitch.h for the available baud rate
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142 choices; the most practical use is setting TR_BAUD_CONFIG=TR_BAUD_812500
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143 when you need to run the RVTMUX serial channel at the maximum possible
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144 baud rate.
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145
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146 USE_CACHE
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147
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148 This setting enables or disables the use of cached libs - see the
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149 Cached libraries section in the Compiling article for the explanation.
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150
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151 USE_STR2IND
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152
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153 Unlike TI's original firmwares, we build without str2ind by default.
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154 You can enable str2ind with USE_STR2IND=1, but the time to build the fw
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155 will be significantly longer as the compiler has to be run twice for
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156 each C source file, with str2ind sandwiched in between.
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157
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158 The following Bourne shell variables are used inside the build system, set by
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159 functional configuration stanzas:
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160
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161 GPRS
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162
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163 Self-explanatory: enables or disables GPRS.
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164
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165 MMI
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166
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167 TI's original config variable: MMI=0 for the AT-command-controlled
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168 modem configuration or MMI=2 for the UI-enabled configuration with
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169 BMI and MFW.
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170
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171 R2D_STATE
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172
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173 Enables or disables inclusion of the R2D driver in the firmware.
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174
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175 R2D_EMBEDDED_LCD
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176
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177 This setting selects the framebuffer config to be used by the R2D
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178 driver, valid settings are:
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179
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180 R2D_EMBEDDED_LCD=7: D-Sample color framebuffer
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181 R2D_EMBEDDED_LCD=8: D-Sample B&W framebuffer
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182 R2D_EMBEDDED_LCD=10: new FreeCalypso 96x64 pixel B&W framebuffer
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183
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184 See src/cs/drivers/drv_app/r2d/r2d_config.h for the details.
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185
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186 SRVC
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187
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188 TI's original config variable, selects the presence or absence of data
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189 services other than GPRS as follows:
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190
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191 SRVC=0: voice and SMS only
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192 SRVC=1: CSD and fax enabled
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193 SRVC=2: CSD enabled, but not fax
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194
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195 UI_CONFIG
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196
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197 The two allowed settings in FC Tourmaline are UI_CONFIG=bigcolor and
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198 UI_CONFIG=smallbw. This setting controls the passing of -DLSCREEN and
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199 -DCOLOURDISPLAY to all C modules in the UI layers.
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200
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201 Finally, CHIPSET, DSP, RF and AMR variables reflect the physical configuration
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202 of the selected target hw that no amount of software hacking can change.
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203 (The AMR variable indicates the presence or absence of AMR support in the DSP.)