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1 // Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // lukasz.forynski@gmail.com |
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13 // |
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14 // Description: |
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15 // omap3530/omap3530_drivers/spi/psl_init.cpp |
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16 // |
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17 |
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18 #include <drivers/iic.h> |
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19 #include <drivers/iic_channel.h> |
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20 |
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21 #include "psl_init.h" |
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22 |
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23 #ifdef MASTER_MODE |
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24 #include "master.h" |
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25 #endif |
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26 #ifdef SLAVE_MODE |
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27 #include "slave.h" |
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28 #endif |
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29 |
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30 #if !defined(MASTER_MODE) && !defined(SLAVE_MODE) |
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31 #error "Should select at least one type of SPI channels.." |
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32 #endif |
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33 |
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34 DECLARE_STANDARD_EXTENSION() |
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35 { |
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36 // Array of pointers to the Channels that the PSL creates, for registration with the Bus Controller |
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37 // Use a local array, since the IIC Controller operates on a copy of the array entries. |
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38 DIicBusChannel* channelPtrArray[KIicPslNumOfChannels]; |
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39 |
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40 TInt r = KErrNone; |
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41 |
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42 #ifdef MASTER_MODE |
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43 #ifndef SLAVE_MODE |
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44 // If only MASTER_MODE is declared - Create only DIicBusChannelMasterPsl channels |
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45 __KTRACE_OPT(KIIC, Kern::Printf("\n\nCreating DIicBusChannelMasterPsl only\n")); |
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46 |
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47 DIicBusChannel* chan = NULL; |
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48 for (TInt i = 0; i < KIicPslNumOfChannels; ++i) |
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49 { |
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50 // The first argument repesents the PSL-assigned channel number |
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51 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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52 // chan = DSpiMasterBeagle::New(i, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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53 if((TInt)KIicPslNumOfChannels == 1)// TODO: hack - only for the time being - enable channel 3 |
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54 chan = DSpiMasterBeagle::New(2, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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55 else |
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56 { |
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57 Kern::Printf("remove hack from here: %s,line %d", __FILE__, __LINE__); |
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58 return KErrGeneral; |
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59 } |
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60 |
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61 if (!chan) |
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62 { |
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63 return KErrNoMemory; |
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64 } |
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65 channelPtrArray[i] = chan; |
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66 } |
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67 |
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68 #else /*SLAVE_MODE*/ |
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69 // Master and Slave functionality is available, so create Master, Slave and MasterSlave Channels |
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70 // Create channel 0 as Master, channel 1 as a Slave, and channel 2 as MasterSlave. |
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71 __KTRACE_OPT(KIIC, Kern::Printf("\n\nCreating Master, Slave and MasterSlave channels\n")); |
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72 |
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73 DIicBusChannel* chan = NULL; |
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74 |
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75 // Master channel |
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76 // The first argument repesents the PSL-assigned channel number |
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77 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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78 chan = DSpiMasterBeagle::New(0, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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79 if (!chan) |
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80 { |
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81 return KErrNoMemory; |
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82 } |
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83 channelPtrArray[0] = chan; |
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84 |
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85 // Slave channel |
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86 // The first argument repesents the PSL-assigned channel number |
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87 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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88 chan = DSpiSlaveBeagle::New(1, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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89 if (!chan) |
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90 { |
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91 return KErrNoMemory; |
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92 } |
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93 channelPtrArray[1] = chan; |
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94 |
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95 // MasterSlave channel |
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96 // MasterSlave channels are not for derivation; instead, they have a pointer to a (derived) Master channel |
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97 // and a pointer to a (derived) Slave channel |
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98 DIicBusChannel* chanM = NULL; |
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99 DIicBusChannel* chanS = NULL; |
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100 // For MasterSlave channel, the channel number for both the Master and Slave channels must be the same |
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101 TInt msChanNum = 2; |
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102 // Master channel |
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103 // The first argument repesents the PSL-assigned channel number |
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104 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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105 chanM = DSpiMasterBeagle::New(msChanNum, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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106 if (!chanM) |
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107 { |
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108 return KErrNoMemory; |
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109 } |
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110 // Slave channel |
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111 // The first argument repesents the PSL-assigned channel number |
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112 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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113 chanS = DSpiSlaveBeagle::New(msChanNum, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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114 if (!chanS) |
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115 { |
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116 return KErrNoMemory; |
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117 } |
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118 // MasterSlave channel |
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119 // The first argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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120 chan = new DIicBusChannelMasterSlave(DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex, (DIicBusChannelMaster*)chanM, (DIicBusChannelSlave*)chanS); |
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121 if (!chan) |
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122 { |
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123 return KErrNoMemory; |
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124 } |
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125 r = ((DIicBusChannelMasterSlave*)chan)->DoCreate(); |
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126 channelPtrArray[2] = chan; |
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127 |
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128 |
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129 #endif /*SLAVE_MODE*/ |
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130 #else /*MASTER_MODE*/ |
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131 |
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132 #ifdef SLAVE_MODE |
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133 // If only SLAVE_MODE is declared - Create all as DSpiSlaveBeagle channels |
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134 __KTRACE_OPT(KIIC, Kern::Printf("\n\nCreating DSpiSlaveBeagle only\n")); |
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135 |
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136 DIicBusChannel* chan = NULL; |
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137 for (TInt i = 0; i < KIicPslNumOfChannels; ++i) |
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138 { |
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139 // The first argument repesents the PSL-assigned channel number |
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140 // The second argument, DIicBusChannel::ESpi, should be replaced with the relevant bus type for the PSL |
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141 chan = DSpiSlaveBeagle::New(i, DIicBusChannel::ESpi, DIicBusChannel::EFullDuplex); |
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142 if (!chan) |
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143 { |
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144 return KErrNoMemory; |
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145 } |
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146 channelPtrArray[i] = chan; |
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147 } |
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148 |
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149 #endif |
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150 #endif /*MASTER_MODE*/ |
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151 |
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152 // Register them with the Bus Controller |
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153 r = DIicBusController::RegisterChannels(channelPtrArray, KIicPslNumOfChannels); |
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154 |
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155 return r; |
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156 } |