1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Network Driver |
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5 | * |
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6 | * This driver is a wrapper for the DWMAC 1000 driver from libchip. |
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7 | * The DWMAC 1000 driver is an on-chip Synopsys IP Ethernet controllers |
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8 | */ |
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9 | |
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10 | /* |
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11 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
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12 | * |
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13 | * embedded brains GmbH |
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14 | * Dornierstr. 4 |
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15 | * 82178 Puchheim |
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16 | * Germany |
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17 | * <rtems@embedded-brains.de> |
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18 | * |
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19 | * The license and distribution terms for this file may be |
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20 | * found in the file LICENSE in this distribution or at |
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21 | * http://www.rtems.org/license/LICENSE. |
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22 | */ |
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23 | |
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24 | |
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25 | #include <rtems.h> |
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26 | |
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27 | #if defined(RTEMS_NETWORKING) |
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28 | |
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29 | #include <assert.h> |
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30 | #include <stdint.h> |
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31 | #include <stdlib.h> |
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32 | #include <errno.h> |
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33 | #include <rtems.h> |
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34 | #include <rtems/config.h> |
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35 | #include <bsp.h> |
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36 | #include <bsp/irq.h> |
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37 | #include <bsp/linker-symbols.h> |
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38 | #include <bsp/hwlib.h> |
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39 | #include <bsp/alt_clock_manager.h> |
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40 | #include <bsp/alt_generalpurpose_io.h> |
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41 | #include "socal/alt_rstmgr.h" |
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42 | #include "socal/alt_sysmgr.h" |
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43 | #include "socal/hps.h" |
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44 | #include "socal/socal.h" |
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45 | #include <libchip/dwmac.h> |
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46 | |
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47 | /** @brief Pin mask for the interrupt from the ethernet PHY */ |
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48 | #define NETWORK_PIN_MASK_PHY_INTERRUPT 0x00000040U |
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49 | |
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50 | /** @brief Ethernet PHY status */ |
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51 | typedef enum { |
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52 | /** @brief The ethernet PHY is off */ |
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53 | NETWORK_IF_PHY_STATUS_OFF, |
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54 | |
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55 | /** @brief The ethernet PHY is on an initialized, but stopped */ |
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56 | NETWORK_IF_PHY_STATUS_STOPPED, |
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57 | |
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58 | /** @brief The ethernet PHY is started and will generate requested events */ |
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59 | NETWORK_IF_PHY_STATUS_STARTED, |
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60 | |
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61 | /** @brief Number of ethernet PHY statuses */ |
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62 | NETWORK_IF_PHY_STATUS_COUNT |
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63 | } network_if_phy_status; |
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64 | |
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65 | /** @brief Phy context |
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66 | * |
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67 | * ethernet PHY device context |
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68 | */ |
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69 | typedef struct { |
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70 | /** @brief PHY device status */ |
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71 | network_if_phy_status status; |
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72 | |
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73 | /** @brief Interrupt mask which corresponds to currently requested events */ |
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74 | uint16_t irq_mask; |
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75 | } network_if_phy_context; |
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76 | |
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77 | /** @brief Phy context initializer |
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78 | * |
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79 | * @retval Initialized network PHY context |
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80 | */ |
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81 | #define NETWORK_IF_PHY_CONTEXT_INITIALIZER( \ |
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82 | ) \ |
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83 | { \ |
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84 | NETWORK_IF_PHY_STATUS_OFF, \ |
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85 | 0 \ |
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86 | } |
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87 | |
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88 | /** @brief Network interface controller ID |
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89 | * |
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90 | * Identifies the network interface controller handled by the driver |
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91 | */ |
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92 | typedef enum { |
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93 | /** @brief ID for EMAC0 */ |
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94 | NETWORK_IF_NIC_ID_EMAC0, |
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95 | |
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96 | /** @brief ID for EMAC1 */ |
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97 | NETWORK_IF_NIC_ID_EMAC1, |
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98 | |
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99 | /** @brief Number of network interface controller IDs */ |
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100 | NETWORK_IF_NIC_ID_COUNT |
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101 | } network_if_nic_id; |
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102 | |
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103 | /** @brief Network interface context |
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104 | * |
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105 | * Context for the micro controller specific part of the DWMAC 1000 n |
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106 | * etwork driver |
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107 | */ |
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108 | typedef struct { |
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109 | /** @brief Network interface controller ID */ |
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110 | network_if_nic_id nic_id; |
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111 | |
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112 | /** @brief Driver context |
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113 | * |
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114 | * Address of the context of the low level DWMAC 1000 driver from libchip */ |
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115 | void *driver_context; |
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116 | |
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117 | /** @brief Ethernet PHY context */ |
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118 | network_if_phy_context phy; |
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119 | |
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120 | /* TODO: Create network context on micro controller level */ |
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121 | } network_if_context; |
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122 | |
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123 | /** @brief Network interface context initializer |
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124 | * |
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125 | * Initializer for the context of a network interface |
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126 | * @param nic_id ID of the network interface controller |
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127 | * @param driver_context Address of the context of the low level DWMAC 1000 |
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128 | * driver from libchip |
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129 | * @retval Initialized network interface context |
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130 | */ |
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131 | #define NETWORK_IF_CONTEXT_INITIALIZER( \ |
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132 | nic_id, \ |
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133 | driver_context \ |
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134 | ) \ |
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135 | { \ |
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136 | nic_id, \ |
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137 | driver_context, \ |
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138 | NETWORK_IF_PHY_CONTEXT_INITIALIZER() \ |
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139 | } |
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140 | |
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141 | /****************************************************************************** |
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142 | * Helper Methods |
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143 | ******************************************************************************/ |
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144 | |
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145 | /** @brief Altera status code to errno |
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146 | * |
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147 | * Convert Altera status code to errno error number |
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148 | * @param status Altera status code as returned by methods from Alteras HWLib |
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149 | * @retval Converted errno error number from errno.h |
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150 | */ |
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151 | static int network_if_altera_status_code_to_errno( ALT_STATUS_CODE status ) |
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152 | { |
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153 | int eno = 0; |
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154 | |
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155 | switch ( status ) { |
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156 | /*! |
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157 | * Indicates a FALSE condition. |
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158 | */ |
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159 | case ALT_E_FALSE: |
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160 | |
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161 | /*! |
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162 | * Indicates a TRUE condition. |
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163 | */ |
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164 | case ALT_E_TRUE: |
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165 | |
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166 | /*! The operation was successful. */ |
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167 | /* case ALT_E_SUCCESS: */ |
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168 | eno = 0; |
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169 | break; |
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170 | |
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171 | /*! The operation failed. */ |
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172 | case ALT_E_ERROR: |
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173 | |
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174 | /*! An invalid option was selected. */ |
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175 | case ALT_E_INV_OPTION: |
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176 | eno = EIO; /* I/O error */ |
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177 | break; |
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178 | |
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179 | /*! FPGA configuration error detected.*/ |
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180 | case ALT_E_FPGA_CFG: |
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181 | eno = ECANCELED; /* Operation canceled */ |
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182 | break; |
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183 | |
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184 | /*! FPGA CRC error detected. */ |
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185 | case ALT_E_FPGA_CRC: |
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186 | |
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187 | /*! An error occurred on the FPGA configuration bitstream input source. */ |
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188 | case ALT_E_FPGA_CFG_STM: |
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189 | eno = EPROTO; /* Protocol error */ |
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190 | break; |
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191 | |
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192 | /*! The FPGA is powered off. */ |
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193 | case ALT_E_FPGA_PWR_OFF: |
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194 | eno = ENODEV; /* No such device */ |
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195 | break; |
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196 | |
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197 | /*! The SoC does not currently control the FPGA. */ |
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198 | case ALT_E_FPGA_NO_SOC_CTRL: |
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199 | |
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200 | /*! The FPGA is not in USER mode. */ |
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201 | case ALT_E_FPGA_NOT_USER_MODE: |
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202 | eno = EPERM; /* Not super-user */ |
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203 | break; |
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204 | |
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205 | /*! An argument violates a range constraint. */ |
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206 | case ALT_E_ARG_RANGE: |
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207 | |
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208 | /*! A bad argument value was passed. */ |
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209 | case ALT_E_BAD_ARG: |
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210 | |
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211 | /*! The argument value is reserved or unavailable. */ |
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212 | case ALT_E_RESERVED: |
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213 | eno = EINVAL; /* Invalid argument */ |
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214 | break; |
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215 | |
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216 | /*! The operation is invalid or illegal. */ |
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217 | case ALT_E_BAD_OPERATION: |
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218 | |
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219 | /*! The version ID is invalid. */ |
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220 | case ALT_E_BAD_VERSION: |
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221 | eno = EFAULT; /* Bad address */ |
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222 | break; |
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223 | |
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224 | /*! An operation or response timeout period expired. */ |
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225 | case ALT_E_TMO: |
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226 | |
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227 | /*! A clock is not enabled or violates an operational constraint. */ |
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228 | case ALT_E_BAD_CLK: |
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229 | eno = ETIME; /* Timer expired */ |
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230 | break; |
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231 | |
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232 | /*! The buffer does not contain enough free space for the operation. */ |
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233 | case ALT_E_BUF_OVF: |
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234 | eno = ENOMEM; /* Not enough core */ |
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235 | break; |
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236 | default: |
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237 | |
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238 | /* Unknown case. Implement it! */ |
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239 | assert( 0 == 1 ); |
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240 | eno = EIO; |
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241 | break; |
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242 | } |
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243 | |
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244 | return eno; |
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245 | } |
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246 | |
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247 | /** @brief PHY check chip ID |
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248 | * |
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249 | * Check the chip-ID of the KSZ8842 ethernet PHY. |
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250 | * @param context Address of the network context |
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251 | * @retval 0 if chip could be identified, error code from errno.h otherwise. |
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252 | */ |
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253 | static int network_if_phy_check_chip_id( network_if_context *context ) |
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254 | { |
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255 | int eno; |
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256 | uint16_t reg; |
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257 | |
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258 | eno = dwmac_if_read_from_phy( |
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259 | context->driver_context, |
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260 | 2, |
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261 | ® |
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262 | ); |
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263 | |
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264 | if ( eno == 0 ) { |
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265 | if ( reg != 0x0022 ) { /* PHY ID part 1 */ |
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266 | eno = ENXIO; |
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267 | } else { |
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268 | eno = dwmac_if_read_from_phy( |
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269 | context->driver_context, |
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270 | 3, |
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271 | ® |
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272 | ); |
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273 | |
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274 | if ( eno == 0 ) { |
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275 | /* PHY ID part 2 and |
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276 | * Manufacturers model number */ |
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277 | if ( ( ( reg & 0xFC00 ) >> 10 ) != 0x0005 ) { |
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278 | eno = ENXIO; |
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279 | } else if ( ( ( reg & 0x03F0 ) >> 4 ) != 0x0021 ) { |
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280 | eno = ENXIO; |
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281 | } |
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282 | } |
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283 | } |
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284 | } |
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285 | |
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286 | return eno; |
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287 | } |
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288 | |
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289 | /****************************************************************************** |
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290 | * Callback Methods |
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291 | ******************************************************************************/ |
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292 | |
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293 | /** @brief NIC enable |
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294 | * |
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295 | * Enables (powers up) the network interface card. |
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296 | * @param[in] arg The void pointer argument passed to |
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297 | * dwmac_network_if_attach_detach. |
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298 | * @retval 0 on success, error code from errno.h on failure. |
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299 | */ |
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300 | static int network_if_nic_enable( void *arg ) |
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301 | { |
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302 | int eno = 0; |
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303 | network_if_context *context = (network_if_context *) arg; |
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304 | ALT_CLK_t module_clk = ALT_CLK_EMAC0; |
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305 | uint32_t permodrst_clr_msk = ALT_RSTMGR_PERMODRST_EMAC0_CLR_MSK; |
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306 | |
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307 | switch ( context->nic_id ) { |
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308 | case NETWORK_IF_NIC_ID_EMAC0: |
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309 | { |
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310 | module_clk = ALT_CLK_EMAC0; |
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311 | permodrst_clr_msk = ALT_RSTMGR_PERMODRST_EMAC0_CLR_MSK; |
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312 | } |
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313 | break; |
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314 | case NETWORK_IF_NIC_ID_EMAC1: |
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315 | { |
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316 | module_clk = ALT_CLK_EMAC1; |
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317 | permodrst_clr_msk = ALT_RSTMGR_PERMODRST_EMAC1_CLR_MSK; |
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318 | } |
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319 | break; |
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320 | |
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321 | case NETWORK_IF_NIC_ID_COUNT: |
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322 | |
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323 | /* Invalid case */ |
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324 | eno = ENODEV; |
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325 | break; |
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326 | default: |
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327 | |
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328 | /* Unknown case */ |
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329 | eno = ENOTSUP; |
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330 | break; |
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331 | } |
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332 | |
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333 | /* Pin mux configuration is handled by the Preloader. Thus no |
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334 | * pin mux configuration here. */ |
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335 | |
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336 | /* Enable the clock for the EMAC module */ |
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337 | if ( eno == 0 ) { |
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338 | if ( ALT_E_FALSE == alt_clk_is_enabled( module_clk ) ) { |
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339 | ALT_STATUS_CODE status = alt_clk_clock_enable( module_clk ); |
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340 | eno = network_if_altera_status_code_to_errno( status ); |
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341 | } |
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342 | } |
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343 | |
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344 | /* Finish reset for the EMAC module */ |
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345 | if ( eno == 0 ) { |
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346 | uint32_t reg = alt_read_word( ALT_RSTMGR_PERMODRST_ADDR ); |
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347 | alt_write_word( ALT_RSTMGR_PERMODRST_ADDR, reg & permodrst_clr_msk ); |
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348 | } |
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349 | |
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350 | return eno; |
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351 | } |
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352 | |
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353 | /** @brief NIC disable. |
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354 | * |
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355 | * Disables (powers down) the network interface card. |
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356 | * @param[in] arg The void pointer argument passed to |
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357 | * dwmac_network_if_attach_detach. |
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358 | * @retval 0 on success, error code from errno.h on failure. |
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359 | */ |
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360 | static int network_if_nic_disable( void *arg ) |
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361 | { |
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362 | int eno = 0; |
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363 | network_if_context *context = (network_if_context *) arg; |
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364 | ALT_CLK_t module_clk = ALT_CLK_EMAC0; |
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365 | uint32_t permodrst_set_msk = ALT_RSTMGR_PERMODRST_EMAC0_SET_MSK; |
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366 | |
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367 | switch ( context->nic_id ) { |
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368 | case NETWORK_IF_NIC_ID_EMAC0: |
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369 | module_clk = ALT_CLK_EMAC0; |
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370 | permodrst_set_msk = ALT_RSTMGR_PERMODRST_EMAC0_SET_MSK; |
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371 | break; |
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372 | case NETWORK_IF_NIC_ID_EMAC1: |
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373 | module_clk = ALT_CLK_EMAC1; |
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374 | permodrst_set_msk = ALT_RSTMGR_PERMODRST_EMAC1_SET_MSK; |
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375 | break; |
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376 | |
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377 | case NETWORK_IF_NIC_ID_COUNT: |
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378 | |
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379 | /* Invalid case */ |
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380 | eno = ENODEV; |
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381 | break; |
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382 | default: |
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383 | |
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384 | /* Unknown case */ |
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385 | eno = ENOTSUP; |
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386 | break; |
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387 | } |
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388 | |
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389 | /* Enter rest status for the EMAC module */ |
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390 | if ( eno == 0 ) { |
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391 | uint32_t reg = alt_read_word( ALT_RSTMGR_PERMODRST_ADDR ); |
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392 | alt_write_word( ALT_RSTMGR_PERMODRST_ADDR, reg | permodrst_set_msk ); |
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393 | } |
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394 | |
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395 | /* Disable the clock for the EMAC module */ |
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396 | if ( eno == 0 ) { |
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397 | if ( ALT_E_TRUE == alt_clk_is_enabled( module_clk ) ) { |
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398 | ALT_STATUS_CODE status = alt_clk_clock_disable( module_clk ); |
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399 | eno = network_if_altera_status_code_to_errno( status ); |
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400 | } |
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401 | } |
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402 | |
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403 | return eno; |
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404 | } |
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405 | |
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406 | /** @brief PHY disable. |
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407 | * |
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408 | * Disables (powers down) the network PHY. |
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409 | * @param[in] arg The void pointer argument passed to |
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410 | * dwmac_network_if_attach_detach. |
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411 | * @retval 0 on success, error code from errno.h on failure. |
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412 | */ |
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413 | static int network_if_phy_disable( void *arg ) |
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414 | { |
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415 | int eno = 0; |
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416 | network_if_context *self = (network_if_context *) arg; |
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417 | uint32_t mask; |
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418 | ALT_STATUS_CODE status_code; |
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419 | |
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420 | /* The power pin of the PHY is hard wire to board power control and |
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421 | * the PHY supports interrupts, This means we can not power it down |
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422 | * and we don't need to stop a timer for polling PHY events. */ |
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423 | |
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424 | status_code = alt_gpio_port_int_mask_set( |
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425 | ALT_GPIO_PORTB, |
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426 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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427 | NETWORK_PIN_MASK_PHY_INTERRUPT |
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428 | ); |
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429 | eno = network_if_altera_status_code_to_errno( status_code ); |
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430 | |
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431 | if ( eno == 0 ) { |
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432 | mask = alt_gpio_port_int_enable_get( ALT_GPIO_PORTB ); |
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433 | status_code = alt_gpio_port_int_enable( |
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434 | ALT_GPIO_PORTB, |
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435 | mask & ~NETWORK_PIN_MASK_PHY_INTERRUPT |
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436 | ); |
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437 | eno = network_if_altera_status_code_to_errno( status_code ); |
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438 | } |
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439 | |
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440 | if ( eno == 0 ) { |
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441 | status_code = alt_gpio_port_int_status_clear( |
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442 | ALT_GPIO_PORTB, |
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443 | NETWORK_PIN_MASK_PHY_INTERRUPT |
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444 | ); |
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445 | eno = network_if_altera_status_code_to_errno( status_code ); |
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446 | } |
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447 | |
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448 | if ( eno == 0 ) { |
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449 | self->phy.status = NETWORK_IF_PHY_STATUS_OFF; |
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450 | } |
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451 | |
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452 | return eno; |
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453 | } |
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454 | |
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455 | /** @brief PHY enable. |
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456 | * |
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457 | * Enables (powers up) the network PHY. |
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458 | * @param[in] arg The void pointer argument passed to |
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459 | * dwmac_network_if_attach_detach. |
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460 | * @retval 0 on success, error code from errno.h on failure. |
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461 | */ |
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462 | static int network_if_phy_enable( void *arg ) |
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463 | { |
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464 | int eno = 0; |
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465 | network_if_context *self = (network_if_context *) arg; |
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466 | ALT_STATUS_CODE status_code; |
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467 | |
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468 | /* The power pin of the PHY is hard wire to board power control and |
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469 | * the PHY supports interrupts, This means we can not power it up |
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470 | * and we don't need to start a timer for polling PHY events. */ |
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471 | |
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472 | eno = network_if_phy_check_chip_id( self ); |
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473 | |
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474 | if ( eno == 0 ) { |
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475 | /* The phy is already enabled and we will reset it */ |
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476 | eno = network_if_phy_disable( self ); |
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477 | |
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478 | if ( eno == 0 ) { |
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479 | rtems_task_wake_after( rtems_clock_get_ticks_per_second() / 100 ); |
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480 | } |
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481 | } else { |
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482 | eno = 0; |
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483 | } |
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484 | |
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485 | status_code = alt_gpio_port_datadir_set( |
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486 | ALT_GPIO_PORTB, |
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487 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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488 | 0 |
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489 | ); |
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490 | eno = network_if_altera_status_code_to_errno( status_code ); |
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491 | |
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492 | if ( eno == 0 ) { |
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493 | status_code = alt_gpio_port_int_type_set( |
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494 | ALT_GPIO_PORTB, |
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495 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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496 | 0 |
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497 | ); |
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498 | eno = network_if_altera_status_code_to_errno( status_code ); |
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499 | } |
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500 | |
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501 | if ( eno == 0 ) { |
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502 | status_code = alt_gpio_port_int_pol_set( |
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503 | ALT_GPIO_PORTB, |
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504 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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505 | 1 |
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506 | ); |
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507 | eno = network_if_altera_status_code_to_errno( status_code ); |
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508 | } |
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509 | |
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510 | if ( eno == 0 ) { |
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511 | status_code = alt_gpio_port_debounce_set( |
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512 | ALT_GPIO_PORTB, |
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513 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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514 | 0 |
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515 | ); |
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516 | eno = network_if_altera_status_code_to_errno( status_code ); |
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517 | } |
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518 | |
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519 | if ( eno == 0 ) { |
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520 | status_code = alt_gpio_port_int_enable( |
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521 | ALT_GPIO_PORTB, |
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522 | NETWORK_PIN_MASK_PHY_INTERRUPT |
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523 | ); |
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524 | eno = network_if_altera_status_code_to_errno( status_code ); |
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525 | } |
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526 | |
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527 | if ( eno == 0 ) { |
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528 | status_code = alt_gpio_port_int_mask_set( |
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529 | ALT_GPIO_PORTB, |
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530 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
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531 | 0 |
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532 | ); |
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533 | eno = network_if_altera_status_code_to_errno( status_code ); |
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534 | } |
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535 | |
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536 | if ( eno == 0 ) { |
---|
537 | status_code = alt_gpio_port_int_status_clear( |
---|
538 | ALT_GPIO_PORTB, |
---|
539 | NETWORK_PIN_MASK_PHY_INTERRUPT |
---|
540 | ); |
---|
541 | eno = network_if_altera_status_code_to_errno( status_code ); |
---|
542 | } |
---|
543 | |
---|
544 | if ( eno == 0 ) { |
---|
545 | self->phy.status = NETWORK_IF_PHY_STATUS_STOPPED; |
---|
546 | } |
---|
547 | |
---|
548 | return eno; |
---|
549 | } |
---|
550 | |
---|
551 | /** @brief Clear phy event status. |
---|
552 | * |
---|
553 | * Clears all PHY event statuses. |
---|
554 | * @param[in] arg The void pointer argument passed to |
---|
555 | * dwmac_network_if_attach_detach. |
---|
556 | * @retval 0 on success, error code from errno.h on failure. |
---|
557 | */ |
---|
558 | static int network_if_phy_event_status_clear( void *arg ) |
---|
559 | { |
---|
560 | int eno; |
---|
561 | ALT_STATUS_CODE status_code; |
---|
562 | |
---|
563 | (void) arg; |
---|
564 | |
---|
565 | /* Clear the interrupt status */ |
---|
566 | status_code = alt_gpio_port_int_status_clear( |
---|
567 | ALT_GPIO_PORTB, |
---|
568 | NETWORK_PIN_MASK_PHY_INTERRUPT |
---|
569 | ); |
---|
570 | eno = network_if_altera_status_code_to_errno( status_code ); |
---|
571 | |
---|
572 | if ( eno == 0 ) { |
---|
573 | /* Unmask the interrupt (was masked within interrupt handler) */ |
---|
574 | status_code = alt_gpio_port_int_mask_set( |
---|
575 | ALT_GPIO_PORTB, |
---|
576 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
---|
577 | 0 |
---|
578 | ); |
---|
579 | eno = network_if_altera_status_code_to_errno( status_code ); |
---|
580 | } |
---|
581 | |
---|
582 | return eno; |
---|
583 | } |
---|
584 | |
---|
585 | /** |
---|
586 | * @brief Get the PHY event status. |
---|
587 | * |
---|
588 | * Reports status on PHY events (e.g. PHY interrupts). |
---|
589 | * @param[in] arg The void pointer argument passed to |
---|
590 | * dwmac_network_if_attach_detach. |
---|
591 | * @param[out] event_set Pointer to a buffer for a set of events for which a |
---|
592 | * PHY status change was detected. |
---|
593 | * For events see @see dwmac_phy_event. |
---|
594 | * @retval 0 on success, error code from errno.h on failure. |
---|
595 | */ |
---|
596 | static int network_if_phy_events_status_get( |
---|
597 | void *arg, |
---|
598 | dwmac_phy_event *event_set ) |
---|
599 | { |
---|
600 | int eno = 0; |
---|
601 | uint16_t reg = 0; |
---|
602 | network_if_context *self = (network_if_context *) arg; |
---|
603 | |
---|
604 | eno = dwmac_if_read_from_phy( |
---|
605 | self->driver_context, |
---|
606 | 0x1B, |
---|
607 | ® |
---|
608 | ); |
---|
609 | |
---|
610 | if ( eno == 0 ) { |
---|
611 | if ( ( reg & 0x80 ) != 0 ) { |
---|
612 | *event_set |= PHY_EVENT_JABBER; |
---|
613 | } |
---|
614 | |
---|
615 | if ( ( reg & 0x40 ) != 0 ) { |
---|
616 | *event_set |= PHY_EVENT_RECEIVE_ERROR; |
---|
617 | } |
---|
618 | |
---|
619 | if ( ( reg & 0x20 ) != 0 ) { |
---|
620 | *event_set |= PHY_EVENT_PAGE_RECEIVE; |
---|
621 | } |
---|
622 | |
---|
623 | if ( ( reg & 0x10 ) != 0 ) { |
---|
624 | *event_set |= PHY_EVENT_PARALLEL_DETECT_FAULT; |
---|
625 | } |
---|
626 | |
---|
627 | if ( ( reg & 0x08 ) != 0 ) { |
---|
628 | *event_set |= PHY_EVENT_LINK_PARTNER_ACK; |
---|
629 | } |
---|
630 | |
---|
631 | if ( ( reg & 0x04 ) != 0 ) { |
---|
632 | *event_set |= PHY_EVENT_LINK_DOWN; |
---|
633 | } |
---|
634 | |
---|
635 | if ( ( reg & 0x02 ) != 0 ) { |
---|
636 | *event_set |= PHY_EVENT_REMOTE_FAULT; |
---|
637 | } |
---|
638 | |
---|
639 | if ( ( reg & 0x01 ) != 0 ) { |
---|
640 | *event_set |= PHY_EVENT_LINK_UP; |
---|
641 | } |
---|
642 | } |
---|
643 | |
---|
644 | return eno; |
---|
645 | } |
---|
646 | |
---|
647 | /** @brief Network PHY interrupt handler |
---|
648 | * |
---|
649 | * Handling method for interrupts from the PHY. |
---|
650 | * @param arg Address of the network interface context |
---|
651 | */ |
---|
652 | static void network_if_phy_interrupt_handler( void *arg ) |
---|
653 | { |
---|
654 | int eno = 0; |
---|
655 | network_if_context *self = (network_if_context *) arg; |
---|
656 | uint32_t reg; |
---|
657 | |
---|
658 | reg = alt_gpio_port_int_status_get( ALT_GPIO_PORTB ); |
---|
659 | |
---|
660 | if ( reg & NETWORK_PIN_MASK_PHY_INTERRUPT ) { |
---|
661 | /* We have a level interrupt and we expect the driver to do |
---|
662 | * the actual interrupt handling from within a task context. |
---|
663 | * Thus we have to mask the interrupt. A call to |
---|
664 | * network_if_phy_event_status_clear() will unmask it */ |
---|
665 | ALT_STATUS_CODE status_code = alt_gpio_port_int_mask_set( |
---|
666 | ALT_GPIO_PORTB, |
---|
667 | NETWORK_PIN_MASK_PHY_INTERRUPT, |
---|
668 | NETWORK_PIN_MASK_PHY_INTERRUPT |
---|
669 | ); |
---|
670 | eno = network_if_altera_status_code_to_errno( status_code ); |
---|
671 | |
---|
672 | if ( eno == 0 ) { |
---|
673 | eno = dwmac_if_handle_phy_event( |
---|
674 | self->driver_context |
---|
675 | ); |
---|
676 | } |
---|
677 | } |
---|
678 | |
---|
679 | assert( eno == 0 ); |
---|
680 | } |
---|
681 | |
---|
682 | /** @brief PHY event enable. |
---|
683 | * |
---|
684 | * Enables generation of events for an event set. |
---|
685 | * @param[in] arg The void pointer argument passed to |
---|
686 | * dwmac_network_if_attach_detach. |
---|
687 | * @param[in] event_set Set of events. For these events shall get generated |
---|
688 | * upon PHY status change. |
---|
689 | * @retval 0 on success, error code from errno.h on failure. |
---|
690 | */ |
---|
691 | static int network_if_phy_event_enable( |
---|
692 | void *arg, |
---|
693 | const dwmac_phy_event event_set ) |
---|
694 | { |
---|
695 | int eno = 0; |
---|
696 | uint16_t reg = 0; |
---|
697 | network_if_context *self = (network_if_context *) arg; |
---|
698 | network_if_phy_status old_status = self->phy.status; |
---|
699 | |
---|
700 | if ( arg != NULL ) { |
---|
701 | switch ( self->phy.status ) { |
---|
702 | case NETWORK_IF_PHY_STATUS_OFF: |
---|
703 | break; |
---|
704 | case NETWORK_IF_PHY_STATUS_STOPPED: |
---|
705 | break; |
---|
706 | case NETWORK_IF_PHY_STATUS_STARTED: |
---|
707 | { |
---|
708 | eno = dwmac_if_read_from_phy( |
---|
709 | self->driver_context, |
---|
710 | 0x1B, |
---|
711 | ® |
---|
712 | ); |
---|
713 | |
---|
714 | if ( eno == 0 ) { |
---|
715 | /* Disable all interrupts, but leave interrupt status |
---|
716 | * bits untouched */ |
---|
717 | reg &= 0x00FF; |
---|
718 | eno = dwmac_if_write_to_phy( |
---|
719 | self->driver_context, |
---|
720 | 0x1B, |
---|
721 | reg |
---|
722 | ); |
---|
723 | } |
---|
724 | |
---|
725 | if ( eno == 0 ) { |
---|
726 | self->phy.irq_mask = 0; |
---|
727 | self->phy.status = NETWORK_IF_PHY_STATUS_STOPPED; |
---|
728 | } |
---|
729 | } |
---|
730 | break; |
---|
731 | case NETWORK_IF_PHY_STATUS_COUNT: |
---|
732 | { |
---|
733 | /* Invalid case */ |
---|
734 | assert( self->phy.status != NETWORK_IF_PHY_STATUS_COUNT ); |
---|
735 | eno = ENOTSUP; |
---|
736 | } |
---|
737 | break; |
---|
738 | default: |
---|
739 | { |
---|
740 | /* Unknown case */ |
---|
741 | assert( |
---|
742 | self->phy.status == NETWORK_IF_PHY_STATUS_OFF |
---|
743 | || self->phy.status == NETWORK_IF_PHY_STATUS_STOPPED |
---|
744 | || self->phy.status == NETWORK_IF_PHY_STATUS_STARTED |
---|
745 | ); |
---|
746 | eno = ENOTSUP; |
---|
747 | } |
---|
748 | break; |
---|
749 | } |
---|
750 | |
---|
751 | if ( eno == 0 ) { |
---|
752 | /* Select interrupts to enable */ |
---|
753 | if ( ( event_set & PHY_EVENT_JABBER ) != 0 ) { |
---|
754 | reg |= 0x8000; |
---|
755 | } |
---|
756 | |
---|
757 | if ( ( event_set & PHY_EVENT_RECEIVE_ERROR ) != 0 ) { |
---|
758 | reg |= 0x4000; |
---|
759 | } |
---|
760 | |
---|
761 | if ( ( event_set & PHY_EVENT_PAGE_RECEIVE ) != 0 ) { |
---|
762 | reg |= 0x2000; |
---|
763 | } |
---|
764 | |
---|
765 | if ( ( event_set & PHY_EVENT_PARALLEL_DETECT_FAULT ) != 0 ) { |
---|
766 | reg |= 0x1000; |
---|
767 | } |
---|
768 | |
---|
769 | if ( ( event_set & PHY_EVENT_LINK_PARTNER_ACK ) != 0 ) { |
---|
770 | reg |= 0x0800; |
---|
771 | } |
---|
772 | |
---|
773 | if ( ( event_set & PHY_EVENT_LINK_DOWN ) != 0 ) { |
---|
774 | reg |= 0x0400; |
---|
775 | } |
---|
776 | |
---|
777 | if ( ( event_set & PHY_EVENT_REMOTE_FAULT ) != 0 ) { |
---|
778 | reg |= 0x0200; |
---|
779 | } |
---|
780 | |
---|
781 | if ( ( event_set & PHY_EVENT_LINK_UP ) != 0 ) { |
---|
782 | reg |= 0x100; |
---|
783 | } |
---|
784 | |
---|
785 | switch ( old_status ) { |
---|
786 | case NETWORK_IF_PHY_STATUS_OFF: |
---|
787 | break; |
---|
788 | case NETWORK_IF_PHY_STATUS_STOPPED: |
---|
789 | break; |
---|
790 | case NETWORK_IF_PHY_STATUS_STARTED: |
---|
791 | { |
---|
792 | if ( eno == 0 ) { |
---|
793 | /* Modify interrupt enable bits, but leave |
---|
794 | * interrupt status bits untouched */ |
---|
795 | eno = dwmac_if_write_to_phy( |
---|
796 | self->driver_context, |
---|
797 | 0x1B, |
---|
798 | reg & 0xFF00 |
---|
799 | ); |
---|
800 | } |
---|
801 | } |
---|
802 | break; |
---|
803 | case NETWORK_IF_PHY_STATUS_COUNT: |
---|
804 | { |
---|
805 | /* Invalid case */ |
---|
806 | assert( self->phy.status != NETWORK_IF_PHY_STATUS_COUNT ); |
---|
807 | eno = ENOTSUP; |
---|
808 | } |
---|
809 | break; |
---|
810 | default: |
---|
811 | { |
---|
812 | /* Unknown case */ |
---|
813 | assert( |
---|
814 | self->phy.status == NETWORK_IF_PHY_STATUS_OFF |
---|
815 | || self->phy.status == NETWORK_IF_PHY_STATUS_STOPPED |
---|
816 | || self->phy.status == NETWORK_IF_PHY_STATUS_STARTED |
---|
817 | ); |
---|
818 | eno = ENOTSUP; |
---|
819 | } |
---|
820 | break; |
---|
821 | } |
---|
822 | |
---|
823 | if ( eno == 0 ) { |
---|
824 | self->phy.irq_mask = reg & 0xFF00; |
---|
825 | } |
---|
826 | } |
---|
827 | } |
---|
828 | |
---|
829 | return eno; |
---|
830 | } |
---|
831 | |
---|
832 | /** |
---|
833 | * @brief Stop the network PHY. |
---|
834 | * |
---|
835 | * Do anything necessary to stop the network PHY (stop generating events, ...). |
---|
836 | * @param[in] arg The void pointer argument passed to |
---|
837 | * dwmac_network_if_attach_detach. |
---|
838 | * @retval 0 on success, error code from errno.h on failure. |
---|
839 | */ |
---|
840 | static int network_if_phy_stop( void *arg ) |
---|
841 | { |
---|
842 | int eno = 0; |
---|
843 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
844 | network_if_context *self = (network_if_context *) arg; |
---|
845 | |
---|
846 | switch ( self->phy.status ) { |
---|
847 | case NETWORK_IF_PHY_STATUS_OFF: |
---|
848 | break; |
---|
849 | case NETWORK_IF_PHY_STATUS_STOPPED: |
---|
850 | break; |
---|
851 | case NETWORK_IF_PHY_STATUS_STARTED: |
---|
852 | { |
---|
853 | /* Remove any selected interrupts */ |
---|
854 | eno = dwmac_if_write_to_phy( |
---|
855 | self->driver_context, |
---|
856 | 0x1B, |
---|
857 | 0 |
---|
858 | ); |
---|
859 | |
---|
860 | if ( eno == 0 ) { |
---|
861 | uint16_t reg; |
---|
862 | |
---|
863 | /* Clear interrupt status bits by reading them */ |
---|
864 | eno = dwmac_if_read_from_phy( |
---|
865 | self->driver_context, |
---|
866 | 0x1B, |
---|
867 | ® |
---|
868 | ); |
---|
869 | } |
---|
870 | |
---|
871 | if ( eno == 0 ) { |
---|
872 | self->phy.irq_mask = 0; |
---|
873 | |
---|
874 | /* Remove interrupt handler */ |
---|
875 | sc = rtems_interrupt_handler_remove( |
---|
876 | ALT_INT_INTERRUPT_GPIO1, |
---|
877 | network_if_phy_interrupt_handler, |
---|
878 | self |
---|
879 | ); |
---|
880 | eno = rtems_status_code_to_errno( sc ); |
---|
881 | |
---|
882 | if ( eno == 0 ) { |
---|
883 | self->phy.status = NETWORK_IF_PHY_STATUS_STOPPED; |
---|
884 | } |
---|
885 | } |
---|
886 | } |
---|
887 | break; |
---|
888 | case NETWORK_IF_PHY_STATUS_COUNT: |
---|
889 | { |
---|
890 | /* Invalid case */ |
---|
891 | assert( self->phy.status != NETWORK_IF_PHY_STATUS_COUNT ); |
---|
892 | eno = ENOTSUP; |
---|
893 | } |
---|
894 | break; |
---|
895 | default: |
---|
896 | { |
---|
897 | /* Unknown case */ |
---|
898 | assert( |
---|
899 | self->phy.status == NETWORK_IF_PHY_STATUS_OFF |
---|
900 | || self->phy.status == NETWORK_IF_PHY_STATUS_STOPPED |
---|
901 | || self->phy.status == NETWORK_IF_PHY_STATUS_STARTED |
---|
902 | ); |
---|
903 | eno = ENOTSUP; |
---|
904 | } |
---|
905 | break; |
---|
906 | } |
---|
907 | |
---|
908 | return eno; |
---|
909 | } |
---|
910 | |
---|
911 | /** |
---|
912 | * @brief Start the network PHY. |
---|
913 | * |
---|
914 | * Do anything necessary to start the network PHY (start generating |
---|
915 | * events, ...). |
---|
916 | * @param[in] arg The void pointer argument passed to |
---|
917 | * dwmac_network_if_attach_detach. |
---|
918 | * @retval 0 on success, error code from errno.h on failure. |
---|
919 | */ |
---|
920 | static int network_if_phy_start( void *arg ) |
---|
921 | { |
---|
922 | int eno = 0; |
---|
923 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
924 | network_if_context *self = (network_if_context *) arg; |
---|
925 | |
---|
926 | switch ( self->phy.status ) { |
---|
927 | case NETWORK_IF_PHY_STATUS_OFF: |
---|
928 | { |
---|
929 | assert( self->phy.status != NETWORK_IF_PHY_STATUS_OFF ); |
---|
930 | eno = EHOSTDOWN; |
---|
931 | } |
---|
932 | break; |
---|
933 | case NETWORK_IF_PHY_STATUS_STOPPED: |
---|
934 | |
---|
935 | /* Disable all interrupts */ |
---|
936 | eno = dwmac_if_write_to_phy( |
---|
937 | self->driver_context, |
---|
938 | 0x1B, |
---|
939 | 0 |
---|
940 | ); |
---|
941 | |
---|
942 | if ( eno == 0 ) { |
---|
943 | } |
---|
944 | |
---|
945 | if ( eno == 0 ) { |
---|
946 | /* Install interrupt handler */ |
---|
947 | sc = rtems_interrupt_handler_install( |
---|
948 | ALT_INT_INTERRUPT_GPIO1, |
---|
949 | NULL, |
---|
950 | RTEMS_INTERRUPT_SHARED, |
---|
951 | network_if_phy_interrupt_handler, |
---|
952 | self |
---|
953 | ); |
---|
954 | eno = rtems_status_code_to_errno( sc ); |
---|
955 | } |
---|
956 | |
---|
957 | if ( eno == 0 ) { |
---|
958 | /* Enable interrupts */ |
---|
959 | eno = dwmac_if_write_to_phy( |
---|
960 | self->driver_context, |
---|
961 | 0x1B, |
---|
962 | self->phy.irq_mask |
---|
963 | ); |
---|
964 | } |
---|
965 | |
---|
966 | break; |
---|
967 | case NETWORK_IF_PHY_STATUS_STARTED: |
---|
968 | { |
---|
969 | uint16_t irq_mask = self->phy.irq_mask; |
---|
970 | |
---|
971 | /* Re-start the phy */ |
---|
972 | eno = network_if_phy_stop( self ); |
---|
973 | |
---|
974 | if ( eno == 0 ) { |
---|
975 | self->phy.irq_mask = irq_mask; |
---|
976 | |
---|
977 | eno = network_if_phy_start( |
---|
978 | self |
---|
979 | ); |
---|
980 | } |
---|
981 | } |
---|
982 | break; |
---|
983 | |
---|
984 | case NETWORK_IF_PHY_STATUS_COUNT: |
---|
985 | { |
---|
986 | /* Invalid case */ |
---|
987 | assert( self->phy.status != NETWORK_IF_PHY_STATUS_COUNT ); |
---|
988 | eno = ENOTSUP; |
---|
989 | } |
---|
990 | break; |
---|
991 | default: |
---|
992 | { |
---|
993 | /* Unknown case */ |
---|
994 | assert( |
---|
995 | self->phy.status == NETWORK_IF_PHY_STATUS_OFF |
---|
996 | || self->phy.status == NETWORK_IF_PHY_STATUS_STOPPED |
---|
997 | || self->phy.status == NETWORK_IF_PHY_STATUS_STARTED |
---|
998 | ); |
---|
999 | eno = ENOTSUP; |
---|
1000 | } |
---|
1001 | break; |
---|
1002 | } |
---|
1003 | |
---|
1004 | if ( eno == 0 ) { |
---|
1005 | self->phy.status = NETWORK_IF_PHY_STATUS_STARTED; |
---|
1006 | } |
---|
1007 | |
---|
1008 | return eno; |
---|
1009 | } |
---|
1010 | |
---|
1011 | /** |
---|
1012 | * @brief Allocate nocache RAM. |
---|
1013 | * |
---|
1014 | * Allocate uncached RAM. |
---|
1015 | * @param[in] arg The void pointer argument passed to |
---|
1016 | * dwmac_network_if_attach_detach. |
---|
1017 | * @param[out] memory Pointer of a buffer to write the address of the |
---|
1018 | * allocated memory to. |
---|
1019 | * @param[in] size Number of bytes to be allocated |
---|
1020 | * @retval 0 on success, error code from errno.h on failure. |
---|
1021 | */ |
---|
1022 | static int network_if_mem_alloc_nocache( |
---|
1023 | void *arg, |
---|
1024 | void **memory, |
---|
1025 | const size_t size ) |
---|
1026 | { |
---|
1027 | int eno = EINVAL; |
---|
1028 | |
---|
1029 | (void) arg; |
---|
1030 | |
---|
1031 | assert( memory != NULL ); |
---|
1032 | |
---|
1033 | if ( memory != NULL ) { |
---|
1034 | *memory = rtems_cache_coherent_allocate( size, 0, 0 ); |
---|
1035 | |
---|
1036 | if ( *memory != NULL ) { |
---|
1037 | eno = 0; |
---|
1038 | } else { |
---|
1039 | eno = ENOMEM; |
---|
1040 | } |
---|
1041 | } |
---|
1042 | |
---|
1043 | return eno; |
---|
1044 | } |
---|
1045 | |
---|
1046 | /** |
---|
1047 | * @brief Free nocache RAM. |
---|
1048 | * |
---|
1049 | * Release uncached RAM. |
---|
1050 | * @param[in] arg The void pointer argument passed to |
---|
1051 | * dwmac_network_if_attach_detach. |
---|
1052 | * @param[in] memory Pointer to the memory to be freed. |
---|
1053 | * @retval 0 on success, error code from errno.h on failure. |
---|
1054 | */ |
---|
1055 | static int network_if_mem_free_nocache( |
---|
1056 | void *arg, |
---|
1057 | void *memory ) |
---|
1058 | { |
---|
1059 | (void) arg; |
---|
1060 | |
---|
1061 | free( memory ); |
---|
1062 | |
---|
1063 | return 0; |
---|
1064 | } |
---|
1065 | |
---|
1066 | /** |
---|
1067 | * @brief Bus setup. |
---|
1068 | * |
---|
1069 | * Callback method for setting up the system bus for the network driver. |
---|
1070 | * @param[in] arg The void pointer argument passed to |
---|
1071 | * dwmac_network_if_attach_detach. |
---|
1072 | * @retval 0 on success, error code from errno.h on failure. |
---|
1073 | */ |
---|
1074 | static int network_if_bus_setup( void *arg ) |
---|
1075 | { |
---|
1076 | volatile uint32_t reg = alt_read_word( ALT_SYSMGR_EMAC_L3MST_ADDR ); |
---|
1077 | |
---|
1078 | (void) arg; |
---|
1079 | |
---|
1080 | reg &= ALT_SYSMGR_EMAC_L3MST_AWCACHE_1_CLR_MSK; |
---|
1081 | reg &= ALT_SYSMGR_EMAC_L3MST_ARCACHE_1_CLR_MSK; |
---|
1082 | reg |= ALT_SYSMGR_EMAC_L3MST_AWCACHE_1_SET( |
---|
1083 | ALT_SYSMGR_EMAC_L3MST_AWCACHE_1_E_CACHE_WRBACK_ALLOC |
---|
1084 | ); |
---|
1085 | reg |= ALT_SYSMGR_EMAC_L3MST_ARCACHE_1_SET( |
---|
1086 | ALT_SYSMGR_EMAC_L3MST_ARCACHE_1_E_CACHE_WRBACK_ALLOC |
---|
1087 | ); |
---|
1088 | |
---|
1089 | alt_write_word( ALT_SYSMGR_EMAC_L3MST_ADDR, reg ); |
---|
1090 | |
---|
1091 | return 0; |
---|
1092 | } |
---|
1093 | |
---|
1094 | /***************************************************************************** |
---|
1095 | * Context Data |
---|
1096 | ******************************************************************************/ |
---|
1097 | |
---|
1098 | /** @brief Network interface context */ |
---|
1099 | static network_if_context context = NETWORK_IF_CONTEXT_INITIALIZER( |
---|
1100 | |
---|
1101 | /** @brief Use EMAC1 */ |
---|
1102 | NETWORK_IF_NIC_ID_EMAC1, |
---|
1103 | |
---|
1104 | /** @brief Address of driver context |
---|
1105 | * |
---|
1106 | * To be assigned with return value of dwmac_network_if_attach_detach */ |
---|
1107 | NULL |
---|
1108 | ); |
---|
1109 | |
---|
1110 | /** @brief Network driver DMA configuration data */ |
---|
1111 | static const dwmac_dma_cfg NETWORK_DMA_CFG = DWMAC_DMA_CFG_INITIALIZER( |
---|
1112 | |
---|
1113 | /** @brief Bus mode burst length */ |
---|
1114 | DWMAC_DMA_CFG_BUS_MODE_BURST_LENGTH_64, |
---|
1115 | |
---|
1116 | /** @brief Bus mode fixed burst? */ |
---|
1117 | DWMAC_DMA_CFG_BUS_MODE_BURST_MODE_SINGLE_OR_INCR, |
---|
1118 | |
---|
1119 | /** @brief Bus mode mixed burst? */ |
---|
1120 | DWMAC_DMA_CFG_BUS_MODE_BURST_NOT_MIXED, |
---|
1121 | |
---|
1122 | /** @brief Permit AXI burst length of 4 */ |
---|
1123 | DWMAC_DMA_CFG_AXI_BURST_LENGTH_4_NOT_SUPPORTED, |
---|
1124 | |
---|
1125 | /** @brief Permit AXI burst length of 8 */ |
---|
1126 | DWMAC_DMA_CFG_AXI_BURST_LENGTH_8_NOT_SUPPORTED, |
---|
1127 | |
---|
1128 | /** @brief Permit AXI burst length of 16 */ |
---|
1129 | DWMAC_DMA_CFG_AXI_BURST_LENGTH_16_NOT_SUPPORTED, |
---|
1130 | |
---|
1131 | /** @brief Select boundary crossing mode */ |
---|
1132 | DWMAC_DMA_CFG_AXI_BURST_BOUNDARY_4_KB |
---|
1133 | ); |
---|
1134 | |
---|
1135 | /** @brief Network driver configuration data */ |
---|
1136 | static const dwmac_cfg NETWORK_DRIVER_CFG = DWMAC_CFG_INITIALIZER( |
---|
1137 | |
---|
1138 | /** @brief GMII clock rate */ |
---|
1139 | 75000000, |
---|
1140 | |
---|
1141 | /** @brief Address of the GMAC registers for emac1 */ |
---|
1142 | ALT_EMAC1_GMACGRP_ADDR, |
---|
1143 | |
---|
1144 | /** @brief Address of the DMA registers for emac1 */ |
---|
1145 | ALT_EMAC1_DMAGRP_ADDR, |
---|
1146 | |
---|
1147 | /** @brief Address of the PHY on the mdio bus */ |
---|
1148 | 4, |
---|
1149 | |
---|
1150 | /** @brief Bytes per L1 cache line */ |
---|
1151 | 32, |
---|
1152 | |
---|
1153 | /** @brief Interrupt number for the EMAC */ |
---|
1154 | ALT_INT_INTERRUPT_EMAC1_IRQ, |
---|
1155 | |
---|
1156 | /** @brief DMA configuration */ |
---|
1157 | &NETWORK_DMA_CFG, |
---|
1158 | |
---|
1159 | /** @brief Callback method for enabling the network controller */ |
---|
1160 | network_if_nic_enable, |
---|
1161 | |
---|
1162 | /** @brief Callback method for disabling the network controller */ |
---|
1163 | network_if_nic_disable, |
---|
1164 | |
---|
1165 | /** @brief Callback method for enabling the PHY */ |
---|
1166 | network_if_phy_enable, |
---|
1167 | |
---|
1168 | /** @brief Callback method for disabling the PHY */ |
---|
1169 | network_if_phy_disable, |
---|
1170 | |
---|
1171 | /** @brief Callback which enables PHY events for forwarding to driver */ |
---|
1172 | network_if_phy_event_enable, |
---|
1173 | |
---|
1174 | /** @brief Callback method for clearing PHY interrupt status */ |
---|
1175 | network_if_phy_event_status_clear, |
---|
1176 | |
---|
1177 | /** @brief Callback method for getting a set of events from the PHY */ |
---|
1178 | network_if_phy_events_status_get, |
---|
1179 | |
---|
1180 | /** @brief Callback method for making the PHY start forwarding events */ |
---|
1181 | network_if_phy_start, |
---|
1182 | |
---|
1183 | /** @brief Callback method for making the PHY stop forwarding events */ |
---|
1184 | network_if_phy_stop, |
---|
1185 | |
---|
1186 | /** @brief Callback method for allocating uncached memory */ |
---|
1187 | network_if_mem_alloc_nocache, |
---|
1188 | |
---|
1189 | /** @brief Callback method for freeing uncached memory */ |
---|
1190 | network_if_mem_free_nocache, |
---|
1191 | |
---|
1192 | /** @brief Callback method for setting up bus upon driver startup */ |
---|
1193 | network_if_bus_setup, |
---|
1194 | |
---|
1195 | /** @brief Operations for the ethernet mac 1000 */ |
---|
1196 | &DWMAC_1000_ETHERNET_MAC_OPS, |
---|
1197 | |
---|
1198 | /** @brief Operations for the enhanced DMA descriptors */ |
---|
1199 | &DWMAC_DESCRIPTOR_OPS_ENHANCED |
---|
1200 | ); |
---|
1201 | |
---|
1202 | /****************************************************************************** |
---|
1203 | * API |
---|
1204 | ******************************************************************************/ |
---|
1205 | |
---|
1206 | /** @brief Network interface attach/detach |
---|
1207 | * |
---|
1208 | * The standard attach/detach method for network interfaces. |
---|
1209 | * This methods will call the DWMAC 1000 attach/detach method and pass |
---|
1210 | * configuration data and callback methods into it. Via these the general |
---|
1211 | * DWMAC 1000 driver is able the handle micro controller specific things. |
---|
1212 | * NOTE: Detaching is NOT supported! |
---|
1213 | * @param config Configuration parameters from and for the BSD network |
---|
1214 | * stack. |
---|
1215 | * @param attaching True if attaching the driver to the network stack, false if |
---|
1216 | * detaching. |
---|
1217 | * @retval 0 if successful, error code from errno.h if not. |
---|
1218 | */ |
---|
1219 | int altera_cyclone_v_network_if_attach_detach( |
---|
1220 | struct rtems_bsdnet_ifconfig *config, |
---|
1221 | int attaching ) |
---|
1222 | { |
---|
1223 | int eno = 0; |
---|
1224 | |
---|
1225 | assert( config != NULL ); |
---|
1226 | |
---|
1227 | /* Network controller initialization */ |
---|
1228 | context.driver_context = dwmac_network_if_attach_detach( |
---|
1229 | config, |
---|
1230 | &NETWORK_DRIVER_CFG, |
---|
1231 | &context, |
---|
1232 | attaching |
---|
1233 | ); |
---|
1234 | |
---|
1235 | if ( context.driver_context == NULL ) { |
---|
1236 | eno = EFAULT; |
---|
1237 | } |
---|
1238 | |
---|
1239 | return eno; |
---|
1240 | } |
---|
1241 | |
---|
1242 | #endif /* defined(RTEMS_NETWORKING) */ |
---|