1 | /* |
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2 | * dev_pic.c - PIC (External Interrupt Controler) generic device API implementation. |
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3 | * |
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4 | * Authors Alain Greiner (2016) |
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5 | * |
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6 | * Copyright (c) UPMC Sorbonne Universites |
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7 | * |
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8 | * This file is part of ALMOS-MKH. |
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9 | * |
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10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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11 | * under the terms of the GNU General Public License as published by |
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12 | * the Free Software Foundation; version 2.0 of the License. |
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13 | * |
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14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTPICLAR PURPOSE. See the GNU |
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17 | * General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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22 | */ |
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23 | |
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24 | #include <hal_types.h> |
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25 | #include <hal_special.h> |
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26 | #include <chdev.h> |
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27 | #include <printk.h> |
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28 | #include <soclib_pic.h> |
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29 | #include <dev_pic.h> |
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30 | #include <cluster.h> |
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31 | |
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32 | ///////////////////////////////////////////////////////////////////////////////////////// |
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33 | // Extern global variables |
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34 | ///////////////////////////////////////////////////////////////////////////////////////// |
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35 | |
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36 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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37 | |
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38 | /////////////////////////////////// |
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39 | void dev_pic_init( chdev_t * pic ) |
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40 | { |
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41 | // get implementation |
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42 | uint32_t impl = pic->impl; |
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43 | |
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44 | // set chdev name |
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45 | strcpy( pic->name , "pic" ); |
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46 | |
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47 | // call the relevant driver init function, |
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48 | // and register commands in PIC device extension |
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49 | if( impl == IMPL_PIC_SCL ) |
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50 | { |
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51 | // call the PIC SOCLIB driver |
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52 | soclib_pic_init( pic ); |
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53 | |
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54 | // update the PIC chdev extension |
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55 | pic->ext.pic.enable_timer = &soclib_pic_enable_timer; |
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56 | pic->ext.pic.enable_irq = &soclib_pic_enable_irq; |
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57 | pic->ext.pic.disable_irq = &soclib_pic_disable_irq; |
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58 | pic->ext.pic.bind_irq = &soclib_pic_bind_irq; |
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59 | pic->ext.pic.send_ipi = &soclib_pic_send_ipi; |
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60 | pic->ext.pic.extend_init = &soclib_pic_extend_init; |
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61 | } |
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62 | else if( impl == IMPL_PIC_I86 ) |
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63 | { |
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64 | assert( false , __FUNCTION__ , "missing implementation for X86\n" ); |
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65 | } |
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66 | else |
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67 | { |
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68 | assert( false , __FUNCTION__ , "undefined PIC device implementation" ); |
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69 | } |
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70 | } // end dev_pic_init() |
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71 | |
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72 | ///////////////////////////////////////////////// |
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73 | void dev_pic_extend_init( uint32_t * lapic_base ) |
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74 | { |
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75 | // get pointer on PIC chdev |
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76 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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77 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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78 | |
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79 | // get pointer on extend_init function |
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80 | pic_init_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.extend_init ) ); |
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81 | |
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82 | // call relevant driver function |
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83 | f( lapic_base ); |
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84 | } |
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85 | |
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86 | ///////////////////////////////////// |
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87 | void dev_pic_bind_irq( lid_t lid, |
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88 | chdev_t * src_chdev ) |
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89 | { |
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90 | // get pointer on PIC chdev |
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91 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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92 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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93 | |
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94 | // get pointer on bind_irq function |
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95 | pic_bind_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.bind_irq ) ); |
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96 | |
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97 | // call relevant driver function |
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98 | f( lid , src_chdev ); |
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99 | } |
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100 | |
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101 | /////////////////////////////////////// |
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102 | void dev_pic_enable_irq( lid_t lid, |
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103 | chdev_t * src_chdev ) |
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104 | { |
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105 | // get pointer on PIC chdev |
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106 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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107 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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108 | |
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109 | // get pointer on enable_irq function |
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110 | pic_enable_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.enable_irq ) ); |
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111 | |
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112 | // call relevant driver function |
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113 | f( lid , src_chdev ); |
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114 | } |
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115 | |
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116 | //////////////////////////////////////// |
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117 | void dev_pic_disable_irq( lid_t lid, |
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118 | chdev_t * src_chdev ) |
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119 | { |
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120 | // get pointer on PIC chdev |
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121 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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122 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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123 | |
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124 | // get pointer on disable_irq function |
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125 | pic_disable_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.disable_irq ) ); |
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126 | |
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127 | // call relevant driver function |
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128 | f( lid , src_chdev ); |
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129 | } |
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130 | |
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131 | //////////////////////////////////////////// |
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132 | void dev_pic_enable_timer( uint32_t period ) |
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133 | { |
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134 | // get pointer on PIC chdev |
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135 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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136 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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137 | |
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138 | // get pointer on enable_timer function |
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139 | pic_timer_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.enable_timer ) ); |
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140 | |
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141 | // call relevant driver function |
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142 | f( period ); |
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143 | } |
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144 | |
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145 | ////////////////////////////////// |
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146 | void dev_pic_send_ipi( cxy_t cxy, |
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147 | lid_t lid ) |
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148 | { |
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149 | // get pointer on PIC chdev |
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150 | chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic ); |
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151 | cxy_t pic_cxy = GET_CXY( chdev_dir.pic ); |
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152 | |
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153 | // get pointer on send_ipi function |
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154 | pic_ipi_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.send_ipi ) ); |
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155 | |
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156 | // call relevant driver function |
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157 | f( cxy , lid ); |
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158 | } |
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159 | |
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