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1 # HG changeset patch
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2 # Parent c5c98e265bb4cf5c3a9d775e56d6599ca73a4c73
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3 rathaxes: initialize the pci bus in an elegant implicit way
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4
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5 diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.blt
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6 --- a/rathaxes/samples/lkm/lkm.blt Sat Jan 07 22:45:07 2012 +0100
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7 +++ b/rathaxes/samples/lkm/lkm.blt Sat Jan 07 23:09:24 2012 +0100
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8 @@ -33,6 +33,7 @@
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9 static int __attribute__((__section__(".init.text"))) rtx_module_init(void)
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10 {
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11 ${pointcut ::IMPLEMENTATION};
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12 + ${pointcut LKM::init_bus_hook};
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13
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14 return 0;
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15 }
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16 @@ -48,6 +49,7 @@
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17 static void __attribute__((__section__(".exit.text"))) rtx_module_exit(void)
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18 {
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19 ${pointcut ::IMPLEMENTATION};
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20 + ${pointcut LKM::deinit_bus_hook};
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21 }
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22
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23 module_exit(rtx_module_exit);
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24 diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.rti
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25 --- a/rathaxes/samples/lkm/lkm.rti Sat Jan 07 22:45:07 2012 +0100
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26 +++ b/rathaxes/samples/lkm/lkm.rti Sat Jan 07 23:09:24 2012 +0100
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27 @@ -12,12 +12,14 @@
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28
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29 required sequence LKM::init()
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30 {
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31 - provided chunk LKM::includes;
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32 - provided chunk LKM::code;
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33 + provided chunk LKM::includes;
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34 + provided chunk LKM::code;
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35 + provided pointcut LKM::init_bus_hook;
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36 }
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37
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38 required sequence LKM::exit()
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39 {
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40 - provided chunk LKM::code;
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41 + provided chunk LKM::code;
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42 + provided pointcut LKM::deinit_bus_hook;
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43 }
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44 }
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45 diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/lkm.rtx
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46 --- a/rathaxes/samples/lkm/lkm.rtx Sat Jan 07 22:45:07 2012 +0100
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47 +++ b/rathaxes/samples/lkm/lkm.rtx Sat Jan 07 23:09:24 2012 +0100
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48 @@ -37,13 +37,13 @@
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49 LKM::init()
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50 {
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51 Log::info("Hello this is LKM");
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52 - PCI::register();
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53 + // PCI::register();
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54 }
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55
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56 LKM::exit()
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57 {
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58 Log::info("Good bye this was LKM");
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59 - PCI::unregister();
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60 + // PCI::unregister();
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61 }
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62 }
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63
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64 diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/pci.blt
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65 --- a/rathaxes/samples/lkm/pci.blt Sat Jan 07 22:45:07 2012 +0100
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66 +++ b/rathaxes/samples/lkm/pci.blt Sat Jan 07 23:09:24 2012 +0100
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67 @@ -102,7 +102,7 @@
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68 };
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69 }
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70
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71 - chunk ::CALL
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72 + chunk LKM::init_bus_hook()
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73 {
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74 /*
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75 * So how do we use the return value in the parent context?
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76 @@ -116,13 +116,22 @@
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77 return error;
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78 }
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79 }
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80 +
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81 + chunk ::CALL()
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82 + {
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83 + // no implementation, we just need to instrument the lkm::bus_hook
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84 + }
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85 }
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86
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87 template sequence PCI::unregister()
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88 {
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89 - chunk ::CALL
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90 + chunk LKM::deinit_bus_hook()
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91 {
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92 pci_unregister_driver(&rtx_pci_driver);
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93 }
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94 +
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95 + chunk ::CALL
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96 + {
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97 + }
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98 }
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99 }
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100 diff -r c5c98e265bb4 -r 4920b3a97ad6 rathaxes/samples/lkm/pci.rti
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101 --- a/rathaxes/samples/lkm/pci.rti Sat Jan 07 22:45:07 2012 +0100
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102 +++ b/rathaxes/samples/lkm/pci.rti Sat Jan 07 23:09:24 2012 +0100
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103 @@ -7,13 +7,20 @@
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104
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105 provided sequence PCI::register()
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106 {
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107 + // it is impossible to provide a "dummy" sequence
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108 + // which just hook itself. The PCI:register juste
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109 + // inject its code in the module_init function
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110 + // in order to load the pci driver.
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111 + // Everything is done with the configuration.
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112 provided chunk ::CALL;
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113 provided chunk LKM::data;
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114 + provided chunk LKM::init_bus_hook;
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115 }
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116
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117 provided sequence PCI::unregister()
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118 {
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119 provided chunk ::CALL;
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120 + provided chunk LKM::deinit_bus_hook;
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121 }
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122
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123 required sequence PCI::probe(PCI::Device)
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