1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup mpc55xx |
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5 | * |
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6 | * @brief SMSC - LAN9218i |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009 |
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11 | * embedded brains GmbH |
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12 | * Obere Lagerstr. 30 |
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13 | * D-82178 Puchheim |
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14 | * Germany |
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15 | * rtems@embedded-brains.de |
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16 | * |
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17 | * The license and distribution terms for this file may be |
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18 | * found in the file LICENSE in this distribution or at |
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19 | * http://www.rtems.com/license/LICENSE. |
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20 | */ |
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21 | |
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22 | #include <mpc55xx/regs.h> |
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23 | |
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24 | #include <errno.h> |
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25 | #include <stdlib.h> |
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26 | #include <stdio.h> |
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27 | #include <string.h> |
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28 | #include <inttypes.h> |
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29 | |
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30 | #include <rtems.h> |
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31 | #include <rtems/rtems_bsdnet.h> |
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32 | #include <rtems/rtems_mii_ioctl.h> |
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33 | |
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34 | #include <sys/param.h> |
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35 | #include <sys/socket.h> |
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36 | #include <sys/sockio.h> |
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37 | #include <sys/mbuf.h> |
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38 | |
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39 | #include <net/if.h> |
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40 | #include <net/if_arp.h> |
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41 | #include <netinet/in.h> |
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42 | #include <netinet/if_ether.h> |
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43 | #include <netinet/in_systm.h> |
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44 | #include <netinet/ip.h> |
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45 | |
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46 | #include <mpc55xx/edma.h> |
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47 | |
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48 | #include <bsp.h> |
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49 | #include <bsp/irq.h> |
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50 | #include <bsp/utility.h> |
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51 | #include <libcpu/powerpc-utility.h> |
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52 | #include <bsp/smsc9218i.h> |
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53 | |
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54 | #include <rtems/status-checks.h> |
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55 | |
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56 | #if MCLBYTES != 2048 |
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57 | #warning "unexpected MCLBYTES value" |
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58 | #endif |
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59 | |
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60 | #define SMSC9218I_EVENT_TX RTEMS_EVENT_1 |
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61 | |
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62 | #define SMSC9218I_EVENT_TX_START RTEMS_EVENT_2 |
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63 | |
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64 | #define SMSC9218I_EVENT_TX_ERROR RTEMS_EVENT_3 |
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65 | |
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66 | #define SMSC9218I_EVENT_RX RTEMS_EVENT_4 |
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67 | |
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68 | #define SMSC9218I_EVENT_RX_ERROR RTEMS_EVENT_5 |
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69 | |
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70 | #define SMSC9218I_EVENT_PHY RTEMS_EVENT_6 |
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71 | |
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72 | #define SMSC9218I_EVENT_EDMA RTEMS_EVENT_7 |
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73 | |
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74 | #define SMSC9218I_EVENT_EDMA_ERROR RTEMS_EVENT_8 |
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75 | |
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76 | /* Adjust by two bytes for proper IP header alignment */ |
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77 | #define SMSC9218I_RX_DATA_OFFSET 2 |
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78 | |
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79 | #define SMSC9218I_TX_JOBS 16U |
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80 | |
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81 | #define SMSC9218I_TX_JOBS_MAX (SMSC9218I_TX_JOBS - 1U) |
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82 | |
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83 | /* Maximum number of fragments per frame, see manual section 3.11.3.2 */ |
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84 | #define SMSC9218I_TX_FRAGMENT_MAX 86 |
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85 | |
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86 | #define SMSC9218I_IRQ_CFG_GLOBAL_ENABLE \ |
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87 | (SMSC9218I_IRQ_CFG_IRQ_EN | SMSC9218I_IRQ_CFG_IRQ_TYPE) |
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88 | |
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89 | #define SMSC9218I_IRQ_CFG_GLOBAL_DISABLE SMSC9218I_IRQ_CFG_IRQ_TYPE |
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90 | |
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91 | #define SMSC9218I_EDMA_RX_CHANNEL 48 |
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92 | |
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93 | #define SMSC9218I_EDMA_RX_TCD_CDF 0x10004 |
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94 | |
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95 | #define SMSC9218I_EDMA_RX_TCD_BMF 0x10003 |
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96 | |
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97 | #define SMSC9218I_EDMA_TX_CHANNEL 49 |
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98 | |
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99 | #define SMSC9218I_EDMA_TX_TCD_BMF_LINK 0x10011 |
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100 | |
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101 | #define SMSC9218I_EDMA_TX_TCD_BMF_INTERRUPT 0x10003 |
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102 | |
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103 | #define SMSC9218I_EDMA_TX_TCD_BMF_CLEAR 0x10000 |
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104 | |
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105 | #ifdef DEBUG |
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106 | #define SMSC9218I_PRINTF(...) printf(__VA_ARGS__) |
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107 | #define SMSC9218I_PRINTK(...) printk(__VA_ARGS__) |
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108 | #else |
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109 | #define SMSC9218I_PRINTF(...) |
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110 | #define SMSC9218I_PRINTK(...) |
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111 | #endif |
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112 | |
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113 | typedef enum { |
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114 | SMSC9218I_NOT_INITIALIZED, |
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115 | SMSC9218I_CONFIGURED, |
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116 | SMSC9218I_STARTED, |
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117 | SMSC9218I_RUNNING |
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118 | } smsc9218i_state; |
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119 | |
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120 | typedef struct { |
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121 | struct arpcom arpcom; |
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122 | struct rtems_mdio_info mdio_info; |
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123 | smsc9218i_state state; |
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124 | rtems_id receive_task; |
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125 | rtems_id transmit_task; |
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126 | mpc55xx_edma_channel_entry edma_receive; |
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127 | mpc55xx_edma_channel_entry edma_transmit; |
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128 | unsigned received_frames; |
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129 | unsigned receive_interrupts; |
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130 | unsigned transmitted_frames; |
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131 | unsigned transmit_interrupts; |
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132 | unsigned receive_too_long_errors; |
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133 | unsigned receive_collision_errors; |
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134 | unsigned receive_crc_errors; |
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135 | unsigned receive_edma_errors; |
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136 | unsigned transmit_errors; |
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137 | unsigned transmit_edma_errors; |
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138 | } smsc9218i_driver_entry; |
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139 | |
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140 | typedef struct { |
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141 | uint32_t a; |
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142 | uint32_t b; |
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143 | } smsc9218i_transmit_command; |
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144 | |
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145 | typedef struct { |
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146 | struct tcd_t command_tcd_table [SMSC9218I_TX_JOBS]; |
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147 | struct tcd_t data_tcd_table [SMSC9218I_TX_JOBS]; |
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148 | smsc9218i_transmit_command command_table [SMSC9218I_TX_JOBS]; |
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149 | struct mbuf *fragment_table [SMSC9218I_TX_JOBS]; |
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150 | struct mbuf *frame; |
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151 | struct mbuf *next_fragment; |
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152 | unsigned empty_index; |
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153 | unsigned transfer_index; |
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154 | unsigned transfer_last_index; |
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155 | unsigned todo_index; |
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156 | unsigned empty; |
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157 | unsigned transfer; |
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158 | unsigned todo; |
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159 | uint32_t frame_length; |
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160 | uint32_t command_b; |
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161 | uint16_t tag; |
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162 | bool done; |
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163 | } smsc9218i_transmit_job_control; |
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164 | |
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165 | static void smsc9218i_edma_done( |
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166 | mpc55xx_edma_channel_entry *e, |
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167 | uint32_t error_status |
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168 | ) |
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169 | { |
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170 | rtems_event_set event = error_status == 0 ? |
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171 | SMSC9218I_EVENT_EDMA : SMSC9218I_EVENT_EDMA_ERROR; |
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172 | |
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173 | SMSC9218I_PRINTK( |
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174 | "edma: id = 0x%08x, error status = 0x%08x\n", |
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175 | e->id, |
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176 | error_status |
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177 | ); |
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178 | |
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179 | rtems_event_send(e->id, event); |
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180 | } |
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181 | |
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182 | static smsc9218i_driver_entry smsc9218i_driver_data = { |
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183 | .state = SMSC9218I_NOT_INITIALIZED, |
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184 | .receive_task = RTEMS_ID_NONE, |
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185 | .transmit_task = RTEMS_ID_NONE, |
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186 | .edma_receive = { |
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187 | .channel = SMSC9218I_EDMA_RX_CHANNEL, |
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188 | .done = smsc9218i_edma_done, |
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189 | .id = RTEMS_ID_NONE |
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190 | }, |
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191 | .edma_transmit = { |
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192 | .channel = SMSC9218I_EDMA_TX_CHANNEL, |
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193 | .done = smsc9218i_edma_done, |
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194 | .id = RTEMS_ID_NONE |
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195 | } |
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196 | }; |
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197 | |
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198 | static void smsc9218i_mac_wait(volatile smsc9218i_registers *regs) |
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199 | { |
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200 | while (IS_FLAG_SET(regs->mac_csr_cmd, SMSC9218I_MAC_CSR_CMD_BUSY)) { |
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201 | /* Wait */ |
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202 | } |
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203 | } |
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204 | |
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205 | static void smsc9218i_mac_write( |
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206 | volatile smsc9218i_registers *regs, |
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207 | uint32_t address, |
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208 | uint32_t data |
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209 | ) |
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210 | { |
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211 | smsc9218i_mac_wait(regs); |
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212 | regs->mac_csr_data = SMSC9218I_SWAP(data); |
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213 | regs->mac_csr_cmd = SMSC9218I_MAC_CSR_CMD_BUSY |
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214 | | SMSC9218I_MAC_CSR_CMD_ADDR(address); |
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215 | smsc9218i_mac_wait(regs); |
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216 | } |
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217 | |
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218 | static uint32_t smsc9218i_mac_read( |
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219 | volatile smsc9218i_registers *regs, |
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220 | uint32_t address |
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221 | ) |
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222 | { |
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223 | uint32_t mac_csr_data = 0; |
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224 | |
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225 | smsc9218i_mac_wait(regs); |
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226 | regs->mac_csr_cmd = SMSC9218I_MAC_CSR_CMD_BUSY |
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227 | | SMSC9218I_MAC_CSR_CMD_READ |
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228 | | SMSC9218I_MAC_CSR_CMD_ADDR(address); |
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229 | smsc9218i_mac_wait(regs); |
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230 | mac_csr_data = regs->mac_csr_data; |
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231 | |
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232 | return SMSC9218I_SWAP(mac_csr_data); |
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233 | } |
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234 | |
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235 | static void smsc9218i_phy_wait(volatile smsc9218i_registers *regs) |
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236 | { |
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237 | uint32_t mac_mii_acc = 0; |
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238 | |
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239 | do { |
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240 | mac_mii_acc = smsc9218i_mac_read(regs, SMSC9218I_MAC_MII_ACC); |
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241 | } while (IS_FLAG_SET(mac_mii_acc, SMSC9218I_MAC_MII_ACC_BUSY)); |
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242 | } |
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243 | |
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244 | static void smsc9218i_phy_write( |
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245 | volatile smsc9218i_registers *regs, |
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246 | uint32_t address, |
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247 | uint32_t data |
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248 | ) |
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249 | { |
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250 | smsc9218i_phy_wait(regs); |
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251 | smsc9218i_mac_write(regs, SMSC9218I_MAC_MII_DATA, data); |
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252 | smsc9218i_mac_write( |
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253 | regs, |
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254 | SMSC9218I_MAC_MII_ACC, |
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255 | SMSC9218I_MAC_MII_ACC_PHY_DEFAULT |
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256 | | SMSC9218I_MAC_MII_ACC_BUSY |
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257 | | SMSC9218I_MAC_MII_ACC_WRITE |
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258 | | SMSC9218I_MAC_MII_ACC_ADDR(address) |
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259 | ); |
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260 | smsc9218i_phy_wait(regs); |
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261 | } |
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262 | |
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263 | static uint32_t smsc9218i_phy_read( |
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264 | volatile smsc9218i_registers *regs, |
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265 | uint32_t address |
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266 | ) |
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267 | { |
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268 | smsc9218i_phy_wait(regs); |
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269 | smsc9218i_mac_write( |
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270 | regs, |
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271 | SMSC9218I_MAC_MII_ACC, |
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272 | SMSC9218I_MAC_MII_ACC_PHY_DEFAULT |
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273 | | SMSC9218I_MAC_MII_ACC_BUSY |
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274 | | SMSC9218I_MAC_MII_ACC_ADDR(address) |
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275 | ); |
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276 | smsc9218i_phy_wait(regs); |
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277 | return smsc9218i_mac_read(regs, SMSC9218I_MAC_MII_DATA); |
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278 | } |
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279 | |
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280 | static void smsc9218i_enable_promiscous_mode( |
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281 | volatile smsc9218i_registers *regs, |
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282 | bool enable |
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283 | ) |
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284 | { |
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285 | uint32_t flags = SMSC9218I_MAC_CR_RXALL | SMSC9218I_MAC_CR_PRMS; |
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286 | uint32_t mac_cr = smsc9218i_mac_read(regs, SMSC9218I_MAC_CR); |
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287 | |
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288 | if (enable) { |
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289 | mac_cr = SET_FLAGS(mac_cr, flags); |
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290 | } else { |
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291 | mac_cr = CLEAR_FLAGS(mac_cr, flags); |
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292 | } |
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293 | |
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294 | smsc9218i_mac_write(regs, SMSC9218I_MAC_CR, mac_cr); |
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295 | } |
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296 | |
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297 | #if defined(DEBUG) |
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298 | static void smsc9218i_register_dump(volatile smsc9218i_registers *regs) |
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299 | { |
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300 | uint32_t reg = 0; |
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301 | |
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302 | reg = regs->id_rev; |
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303 | printf( |
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304 | "id_rev: 0x%08" PRIx32 " (ID = 0x%04" PRIx32 |
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305 | ", revision = 0x%04" PRIx32 ")\n", |
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306 | SMSC9218I_SWAP(reg), |
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307 | SMSC9218I_ID_REV_GET_ID(reg), |
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308 | SMSC9218I_ID_REV_GET_REV(reg) |
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309 | ); |
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310 | |
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311 | reg = regs->irq_cfg; |
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312 | printf("irq_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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313 | |
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314 | reg = regs->int_sts; |
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315 | printf("int_sts: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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316 | |
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317 | reg = regs->int_en; |
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318 | printf("int_en: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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319 | |
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320 | reg = regs->byte_test; |
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321 | printf("byte_test: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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322 | |
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323 | reg = regs->fifo_int; |
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324 | printf("fifo_int: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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325 | |
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326 | reg = regs->rx_cfg; |
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327 | printf("rx_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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328 | |
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329 | reg = regs->tx_cfg; |
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330 | printf("tx_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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331 | |
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332 | reg = regs->hw_cfg; |
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333 | printf("hw_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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334 | |
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335 | reg = regs->rx_dp_ctl; |
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336 | printf("rx_dp_ctl: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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337 | |
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338 | reg = regs->rx_fifo_inf; |
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339 | printf( |
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340 | "rx_fifo_inf: 0x%08" PRIx32 " (status unused = %" PRIu32 |
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341 | ", data unused = %" PRIu32 ")\n", |
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342 | SMSC9218I_SWAP(reg), |
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343 | SMSC9218I_RX_FIFO_INF_GET_SUSED(reg), |
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344 | SMSC9218I_RX_FIFO_INF_GET_DUSED(reg) |
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345 | ); |
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346 | |
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347 | reg = regs->tx_fifo_inf; |
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348 | printf( |
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349 | "tx_fifo_inf: 0x%08" PRIx32 " (status unused = %" PRIu32 |
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350 | ", free = %" PRIu32 ")\n", |
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351 | SMSC9218I_SWAP(reg), |
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352 | SMSC9218I_TX_FIFO_INF_GET_SUSED(reg), |
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353 | SMSC9218I_TX_FIFO_INF_GET_FREE(reg) |
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354 | ); |
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355 | |
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356 | reg = regs->pmt_ctrl; |
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357 | printf("pmt_ctrl: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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358 | |
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359 | reg = regs->gpio_cfg; |
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360 | printf("gpio_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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361 | |
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362 | reg = regs->gpt_cfg; |
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363 | printf("gpt_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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364 | |
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365 | reg = regs->gpt_cnt; |
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366 | printf("gpt_cnt: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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367 | |
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368 | reg = regs->word_swap; |
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369 | printf("word_swap: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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370 | |
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371 | reg = regs->free_run; |
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372 | printf("free_run: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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373 | |
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374 | reg = regs->rx_drop; |
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375 | printf("rx_drop: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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376 | |
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377 | reg = regs->afc_cfg; |
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378 | printf("afc_cfg: 0x%08" PRIx32 "\n", SMSC9218I_SWAP(reg)); |
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379 | |
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380 | printf("mac: cr: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_CR)); |
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381 | printf("mac: addrh: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_ADDRH)); |
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382 | printf("mac: addrl: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_ADDRL)); |
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383 | printf("mac: hashh: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_HASHH)); |
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384 | printf("mac: hashl: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_HASHL)); |
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385 | printf("mac: mii_acc: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_MII_ACC)); |
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386 | printf("mac: mii_data: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_MII_DATA)); |
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387 | printf("mac: flow: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_FLOW)); |
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388 | printf("mac: vlan1: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_VLAN1)); |
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389 | printf("mac: vlan2: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_VLAN2)); |
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390 | printf("mac: wuff: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_WUFF)); |
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391 | printf("mac: wucsr: 0x%08" PRIx32 "\n", smsc9218i_mac_read(regs, SMSC9218I_MAC_WUCSR)); |
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392 | |
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393 | printf("phy: bcr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_BCR)); |
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394 | printf("phy: bsr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_BSR)); |
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395 | printf("phy: id1: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ID1)); |
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396 | printf("phy: id2: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ID2)); |
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397 | printf("phy: anar: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ANAR)); |
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398 | printf("phy: anlpar: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ANLPAR)); |
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399 | printf("phy: anexpr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ANEXPR)); |
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400 | printf("phy: mcsr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_MCSR)); |
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401 | printf("phy: spmodes: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_SPMODES)); |
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402 | printf("phy: cisr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_CSIR)); |
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403 | printf("phy: isr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_ISR)); |
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404 | printf("phy: imr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_IMR)); |
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405 | printf("phy: physcsr: 0x%08" PRIx32 "\n", smsc9218i_phy_read(regs, SMSC9218I_PHY_PHYSCSR)); |
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406 | } |
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407 | #endif |
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408 | |
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409 | static void smsc9218i_interrupt_handler(void *arg) |
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410 | { |
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411 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) arg; |
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412 | volatile smsc9218i_registers *const regs = smsc9218i; |
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413 | rtems_event_set re = 0; |
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414 | rtems_event_set te = 0; |
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415 | uint32_t int_en = regs->int_en; |
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416 | uint32_t int_sts = regs->int_sts & int_en; |
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417 | #ifdef DEBUG |
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418 | uint32_t irq_cfg = regs->irq_cfg; |
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419 | #endif |
---|
420 | |
---|
421 | /* Get interrupt status */ |
---|
422 | SMSC9218I_PRINTK( |
---|
423 | "interrupt: irq_cfg = 0x%08x, int_sts = 0x%08x, int_en = 0x%08x\n", |
---|
424 | SMSC9218I_SWAP(irq_cfg), |
---|
425 | SMSC9218I_SWAP(int_sts), |
---|
426 | SMSC9218I_SWAP(int_en) |
---|
427 | ); |
---|
428 | |
---|
429 | /* Disable module interrupts */ |
---|
430 | regs->irq_cfg = SMSC9218I_IRQ_CFG_GLOBAL_DISABLE; |
---|
431 | |
---|
432 | /* Clear external interrupt status */ |
---|
433 | SIU.EISR.R = 1; |
---|
434 | |
---|
435 | /* Clear interrupts */ |
---|
436 | regs->int_sts = int_sts; |
---|
437 | |
---|
438 | /* Check receive interrupts */ |
---|
439 | if (IS_FLAG_SET(int_sts, SMSC9218I_INT_STS_RSFL)) { |
---|
440 | int_en = CLEAR_FLAG(int_en, SMSC9218I_INT_EN_RSFL); |
---|
441 | re = SMSC9218I_EVENT_RX; |
---|
442 | } |
---|
443 | |
---|
444 | /* Check PHY interrupts */ |
---|
445 | if (IS_FLAG_SET(int_sts, SMSC9218I_INT_STS_PHY)) { |
---|
446 | int_en = CLEAR_FLAG(int_en, SMSC9218I_INT_EN_PHY); |
---|
447 | re = SET_FLAG(re, SMSC9218I_EVENT_PHY); |
---|
448 | } |
---|
449 | |
---|
450 | /* Send events to receive task */ |
---|
451 | if (re != 0) { |
---|
452 | SMSC9218I_PRINTK("interrupt: receive: 0x%08x\n", re); |
---|
453 | ++e->receive_interrupts; |
---|
454 | (void) rtems_event_send(e->receive_task, re); |
---|
455 | } |
---|
456 | |
---|
457 | /* Check transmit interrupts */ |
---|
458 | if (IS_FLAG_SET(int_sts, SMSC9218I_INT_STS_TDFA)) { |
---|
459 | int_en = CLEAR_FLAG(int_en, SMSC9218I_INT_EN_TDFA); |
---|
460 | te = SMSC9218I_EVENT_TX; |
---|
461 | } |
---|
462 | |
---|
463 | /* Send events to transmit task */ |
---|
464 | if (te != 0) { |
---|
465 | SMSC9218I_PRINTK("interrupt: transmit: 0x%08x\n", te); |
---|
466 | ++e->transmit_interrupts; |
---|
467 | (void) rtems_event_send(e->transmit_task, te); |
---|
468 | } |
---|
469 | |
---|
470 | /* Update interrupt enable */ |
---|
471 | regs->int_en = int_en; |
---|
472 | |
---|
473 | /* Enable module interrupts */ |
---|
474 | regs->irq_cfg = SMSC9218I_IRQ_CFG_GLOBAL_ENABLE; |
---|
475 | } |
---|
476 | |
---|
477 | static void smsc9218i_enable_receive_interrupts( |
---|
478 | volatile smsc9218i_registers *regs |
---|
479 | ) |
---|
480 | { |
---|
481 | rtems_interrupt_level level; |
---|
482 | |
---|
483 | rtems_interrupt_disable(level); |
---|
484 | regs->int_en = SET_FLAG(regs->int_en, SMSC9218I_INT_EN_RSFL); |
---|
485 | rtems_interrupt_enable(level); |
---|
486 | } |
---|
487 | |
---|
488 | static void smsc9218i_enable_transmit_interrupts( |
---|
489 | volatile smsc9218i_registers *regs |
---|
490 | ) |
---|
491 | { |
---|
492 | rtems_interrupt_level level; |
---|
493 | |
---|
494 | rtems_interrupt_disable(level); |
---|
495 | regs->int_en = SET_FLAG(regs->int_en, SMSC9218I_INT_EN_TDFA); |
---|
496 | rtems_interrupt_enable(level); |
---|
497 | } |
---|
498 | |
---|
499 | static void smsc9218i_enable_phy_interrupts( |
---|
500 | volatile smsc9218i_registers *regs |
---|
501 | ) |
---|
502 | { |
---|
503 | rtems_interrupt_level level; |
---|
504 | |
---|
505 | rtems_interrupt_disable(level); |
---|
506 | regs->int_en = SET_FLAG(regs->int_en, SMSC9218I_INT_EN_PHY); |
---|
507 | rtems_interrupt_enable(level); |
---|
508 | } |
---|
509 | |
---|
510 | static struct mbuf *smsc9218i_new_mbuf(struct ifnet *ifp, bool wait) |
---|
511 | { |
---|
512 | struct mbuf *m = NULL; |
---|
513 | int mw = wait ? M_WAIT : M_DONTWAIT; |
---|
514 | |
---|
515 | MGETHDR(m, mw, MT_DATA); |
---|
516 | if (m != NULL) { |
---|
517 | MCLGET(m, mw); |
---|
518 | if (IS_FLAG_SET(m->m_flags, M_EXT)) { |
---|
519 | /* Set receive interface */ |
---|
520 | m->m_pkthdr.rcvif = ifp; |
---|
521 | |
---|
522 | return m; |
---|
523 | } else { |
---|
524 | m_freem(m); |
---|
525 | } |
---|
526 | } |
---|
527 | |
---|
528 | return NULL; |
---|
529 | } |
---|
530 | |
---|
531 | static void smsc9218i_receive_task(void *arg) |
---|
532 | { |
---|
533 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
534 | rtems_event_set events = 0; |
---|
535 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) arg; |
---|
536 | struct ifnet *ifp = &e->arpcom.ac_if; |
---|
537 | volatile smsc9218i_registers *const regs = smsc9218i; |
---|
538 | volatile struct tcd_t *tcd = &EDMA.TCD [e->edma_receive.channel]; |
---|
539 | struct tcd_t tcd_init = EDMA_TCD_DEFAULT; |
---|
540 | uint32_t mac_cr = 0; |
---|
541 | |
---|
542 | SMSC9218I_PRINTF("%s\n", __func__); |
---|
543 | |
---|
544 | /* Obtain receive eDMA channel */ |
---|
545 | e->edma_receive.id = e->receive_task; |
---|
546 | sc = mpc55xx_edma_obtain_channel(&e->edma_receive); |
---|
547 | RTEMS_CLEANUP_SC(sc, cleanup, "obtain receive eDMA channel"); |
---|
548 | |
---|
549 | /* Setup receive eDMA channel */ |
---|
550 | tcd_init.SDF.B.SSIZE = 2; |
---|
551 | tcd_init.SDF.B.DSIZE = 2; |
---|
552 | tcd_init.SADDR = (uint32_t) ®s->rx_fifo_data; |
---|
553 | *tcd = tcd_init; |
---|
554 | |
---|
555 | /* Configure receiver */ |
---|
556 | regs->rx_cfg = SMSC9218I_RX_CFG_END_ALIGN_4 |
---|
557 | | SMSC9218I_RX_CFG_DOFF(SMSC9218I_RX_DATA_OFFSET); |
---|
558 | |
---|
559 | /* Enable MAC receiver */ |
---|
560 | mac_cr = smsc9218i_mac_read(regs, SMSC9218I_MAC_CR) | SMSC9218I_MAC_CR_RXEN; |
---|
561 | smsc9218i_mac_write(regs, SMSC9218I_MAC_CR, mac_cr); |
---|
562 | |
---|
563 | /* Enable receive interrupts */ |
---|
564 | smsc9218i_enable_receive_interrupts(regs); |
---|
565 | |
---|
566 | /* Enable PHY interrupts */ |
---|
567 | smsc9218i_phy_write( |
---|
568 | regs, |
---|
569 | SMSC9218I_PHY_IMR, |
---|
570 | SMSC9218I_PHY_IMR_INT4 | SMSC9218I_PHY_IMR_INT6 |
---|
571 | ); |
---|
572 | smsc9218i_enable_phy_interrupts(regs); |
---|
573 | |
---|
574 | SMSC9218I_PRINTF( |
---|
575 | "rx: phy_isr = 0x%08" PRIx32 ", phy_imr = 0x%08" PRIx32 "\n", |
---|
576 | smsc9218i_phy_read(regs, SMSC9218I_PHY_ISR), |
---|
577 | smsc9218i_phy_read(regs, SMSC9218I_PHY_IMR) |
---|
578 | ); |
---|
579 | |
---|
580 | /* Main event loop */ |
---|
581 | while (true) { |
---|
582 | uint32_t rx_fifo_inf = 0; |
---|
583 | uint32_t status_used = 0; |
---|
584 | |
---|
585 | /* Wait for events */ |
---|
586 | sc = rtems_bsdnet_event_receive( |
---|
587 | SMSC9218I_EVENT_RX | SMSC9218I_EVENT_PHY, |
---|
588 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
589 | RTEMS_NO_TIMEOUT, |
---|
590 | &events |
---|
591 | ); |
---|
592 | RTEMS_CLEANUP_SC(sc, cleanup, "wait for events"); |
---|
593 | |
---|
594 | if (IS_FLAG_SET(events, SMSC9218I_EVENT_PHY)) { |
---|
595 | uint32_t phy_isr = smsc9218i_phy_read(regs, SMSC9218I_PHY_ISR); |
---|
596 | |
---|
597 | /* TODO */ |
---|
598 | |
---|
599 | printf("rx: PHY event: 0x%08" PRIx32 "\n", phy_isr); |
---|
600 | |
---|
601 | smsc9218i_enable_phy_interrupts(regs); |
---|
602 | } |
---|
603 | |
---|
604 | rx_fifo_inf = regs->rx_fifo_inf; |
---|
605 | status_used = SMSC9218I_RX_FIFO_INF_GET_SUSED(rx_fifo_inf); |
---|
606 | |
---|
607 | SMSC9218I_PRINTF( |
---|
608 | "rx: wake up: events = 0x%08" PRIx32 ", status used = %" PRIu32 "\n", |
---|
609 | events, |
---|
610 | status_used |
---|
611 | ); |
---|
612 | |
---|
613 | while (status_used > 0) { |
---|
614 | uint32_t rx_fifo_status = regs->rx_fifo_status; |
---|
615 | uint32_t frame_length = SMSC9218I_RX_STS_GET_LENGTH(rx_fifo_status); |
---|
616 | uint32_t data_length = frame_length + SMSC9218I_RX_DATA_OFFSET; |
---|
617 | uint32_t data_misalign = data_length % 4; |
---|
618 | |
---|
619 | /* Align data length on four byte boundary */ |
---|
620 | if (data_misalign > 0) { |
---|
621 | data_length += 4 - data_misalign; |
---|
622 | } |
---|
623 | |
---|
624 | SMSC9218I_PRINTF( |
---|
625 | "rx: status = 0x%08" PRIx32 ", frame length = %" PRIu32 |
---|
626 | ", data length = %" PRIu32 ", data used = %" PRIu32 "\n", |
---|
627 | SMSC9218I_SWAP(rx_fifo_status), |
---|
628 | frame_length, |
---|
629 | data_length, |
---|
630 | SMSC9218I_RX_FIFO_INF_GET_DUSED(rx_fifo_inf) |
---|
631 | ); |
---|
632 | |
---|
633 | if (IS_FLAG_CLEARED(rx_fifo_status, SMSC9218I_RX_STS_ERROR)) { |
---|
634 | struct mbuf *m = smsc9218i_new_mbuf(ifp, true); |
---|
635 | struct ether_header *eh = (struct ether_header *) |
---|
636 | (mtod(m, char *) + SMSC9218I_RX_DATA_OFFSET); |
---|
637 | int mbuf_length = (int) frame_length - ETHER_HDR_LEN - ETHER_CRC_LEN; |
---|
638 | char *data = mtod(m, char *); |
---|
639 | |
---|
640 | /* Update mbuf */ |
---|
641 | m->m_len = mbuf_length; |
---|
642 | m->m_pkthdr.len = mbuf_length; |
---|
643 | m->m_data = data + ETHER_HDR_LEN + SMSC9218I_RX_DATA_OFFSET; |
---|
644 | |
---|
645 | /* Invalidate data cache */ |
---|
646 | rtems_cache_invalidate_multiple_data_lines(data, data_length); |
---|
647 | |
---|
648 | /* Start eDMA transfer */ |
---|
649 | tcd->DADDR = (uint32_t) data; |
---|
650 | tcd->NBYTES = data_length; |
---|
651 | tcd->CDF.R = SMSC9218I_EDMA_RX_TCD_CDF; |
---|
652 | tcd->BMF.R = SMSC9218I_EDMA_RX_TCD_BMF; |
---|
653 | |
---|
654 | /* Wait for eDMA events */ |
---|
655 | sc = rtems_bsdnet_event_receive( |
---|
656 | SMSC9218I_EVENT_EDMA | SMSC9218I_EVENT_EDMA_ERROR, |
---|
657 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
658 | RTEMS_NO_TIMEOUT, |
---|
659 | &events |
---|
660 | ); |
---|
661 | RTEMS_CHECK_SC_TASK(sc, "wait for eDMA events"); |
---|
662 | |
---|
663 | if (IS_FLAG_CLEARED(events, SMSC9218I_EVENT_EDMA_ERROR)) { |
---|
664 | /* Hand over */ |
---|
665 | ether_input(ifp, eh, m); |
---|
666 | |
---|
667 | /* Increment received frames counter */ |
---|
668 | ++e->received_frames; |
---|
669 | } else { |
---|
670 | /* Increment receive eDMA error counter */ |
---|
671 | ++e->receive_edma_errors; |
---|
672 | } |
---|
673 | |
---|
674 | SMSC9218I_PRINTF("rx: eDMA done\n"); |
---|
675 | } else { |
---|
676 | SMSC9218I_PRINTF("rx: error\n"); |
---|
677 | |
---|
678 | /* Update error counters */ |
---|
679 | if (IS_FLAG_SET(rx_fifo_status, SMSC9218I_RX_STS_ERROR_TOO_LONG)) { |
---|
680 | ++e->receive_too_long_errors; |
---|
681 | } |
---|
682 | if (IS_FLAG_SET(rx_fifo_status, SMSC9218I_RX_STS_ERROR_COLLISION)) { |
---|
683 | ++e->receive_collision_errors; |
---|
684 | } |
---|
685 | if (IS_FLAG_SET(rx_fifo_status, SMSC9218I_RX_STS_ERROR_CRC)) { |
---|
686 | ++e->receive_crc_errors; |
---|
687 | } |
---|
688 | |
---|
689 | /* Discard frame */ |
---|
690 | if (frame_length > 16) { |
---|
691 | /* Fast forward */ |
---|
692 | regs->rx_dp_ctl = SMSC9218I_RX_DP_CTRL_FFWD; |
---|
693 | |
---|
694 | while (IS_FLAG_SET(regs->rx_dp_ctl, SMSC9218I_RX_DP_CTRL_FFWD)) { |
---|
695 | /* Wait */ |
---|
696 | } |
---|
697 | } else { |
---|
698 | uint32_t len = data_length / 4; |
---|
699 | uint32_t i = 0; |
---|
700 | |
---|
701 | /* Discard data */ |
---|
702 | for (i = 0; i < len; ++i) { |
---|
703 | regs->rx_fifo_data; |
---|
704 | } |
---|
705 | } |
---|
706 | } |
---|
707 | |
---|
708 | /* Clear FIFO level status */ |
---|
709 | regs->int_sts = SMSC9218I_INT_STS_RSFL; |
---|
710 | |
---|
711 | /* Next FIFO status */ |
---|
712 | rx_fifo_inf = regs->rx_fifo_inf; |
---|
713 | status_used = SMSC9218I_RX_FIFO_INF_GET_SUSED(rx_fifo_inf); |
---|
714 | } |
---|
715 | |
---|
716 | SMSC9218I_PRINTF("rx: done\n"); |
---|
717 | |
---|
718 | /* Nothing to do, enable receive interrupts */ |
---|
719 | smsc9218i_enable_receive_interrupts(regs); |
---|
720 | } |
---|
721 | |
---|
722 | cleanup: |
---|
723 | |
---|
724 | /* Release network semaphore */ |
---|
725 | rtems_bsdnet_semaphore_release(); |
---|
726 | |
---|
727 | /* Terminate self */ |
---|
728 | (void) rtems_task_delete(RTEMS_SELF); |
---|
729 | } |
---|
730 | |
---|
731 | #if defined(DEBUG) |
---|
732 | static void smsc9218i_transmit_job_dump( |
---|
733 | smsc9218i_transmit_job_control *jc, |
---|
734 | const char *msg |
---|
735 | ) |
---|
736 | { |
---|
737 | char out [SMSC9218I_TX_JOBS + 1]; |
---|
738 | unsigned c = 0; |
---|
739 | unsigned s = 0; |
---|
740 | |
---|
741 | out [SMSC9218I_TX_JOBS] = '\0'; |
---|
742 | |
---|
743 | memset(out, '?', SMSC9218I_TX_JOBS); |
---|
744 | |
---|
745 | c = jc->todo_index; |
---|
746 | s = jc->empty; |
---|
747 | while (s > 0) { |
---|
748 | out [c] = 'E'; |
---|
749 | --s; |
---|
750 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
751 | ++c; |
---|
752 | } else { |
---|
753 | c = 0; |
---|
754 | } |
---|
755 | } |
---|
756 | |
---|
757 | c = jc->transfer_index; |
---|
758 | s = jc->todo; |
---|
759 | while (s > 0) { |
---|
760 | out [c] = 'T'; |
---|
761 | --s; |
---|
762 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
763 | ++c; |
---|
764 | } else { |
---|
765 | c = 0; |
---|
766 | } |
---|
767 | } |
---|
768 | |
---|
769 | c = jc->empty_index; |
---|
770 | s = jc->transfer; |
---|
771 | while (s > 0) { |
---|
772 | out [c] = 'D'; |
---|
773 | --s; |
---|
774 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
775 | ++c; |
---|
776 | } else { |
---|
777 | c = 0; |
---|
778 | } |
---|
779 | } |
---|
780 | |
---|
781 | printf( |
---|
782 | "tx: %s: %02u:%02u:%02u %s\n", |
---|
783 | msg, |
---|
784 | jc->empty, |
---|
785 | jc->todo, |
---|
786 | jc->transfer, |
---|
787 | out |
---|
788 | ); |
---|
789 | } |
---|
790 | #endif /* defined(DEBUG) */ |
---|
791 | |
---|
792 | static struct mbuf *smsc9218i_next_transmit_fragment( |
---|
793 | struct ifnet *ifp, |
---|
794 | smsc9218i_transmit_job_control *jc |
---|
795 | ) |
---|
796 | { |
---|
797 | struct mbuf *m = jc->next_fragment; |
---|
798 | |
---|
799 | if (m != NULL) { |
---|
800 | /* Next fragment is from the current frame */ |
---|
801 | jc->next_fragment = m->m_next; |
---|
802 | } else { |
---|
803 | /* Dequeue first fragment of the next frame */ |
---|
804 | IF_DEQUEUE(&ifp->if_snd, m); |
---|
805 | |
---|
806 | /* Update frame head */ |
---|
807 | jc->frame = m; |
---|
808 | |
---|
809 | if (m != NULL) { |
---|
810 | struct mbuf *n = m; |
---|
811 | struct mbuf *p = NULL; |
---|
812 | uint32_t frame_length = 0; |
---|
813 | unsigned fragments = 0; |
---|
814 | |
---|
815 | /* Calculate frame length and fragment number */ |
---|
816 | do { |
---|
817 | int len = n->m_len; |
---|
818 | |
---|
819 | if (len > 0) { |
---|
820 | ++fragments; |
---|
821 | frame_length += (uint32_t) len; |
---|
822 | |
---|
823 | if (len < 4) { |
---|
824 | printf("FIXME\n"); |
---|
825 | } |
---|
826 | |
---|
827 | /* Next fragment */ |
---|
828 | p = n; |
---|
829 | n = n->m_next; |
---|
830 | } else { |
---|
831 | /* Discard empty fragment and get next */ |
---|
832 | n = m_free(n); |
---|
833 | |
---|
834 | /* Remove fragment from list */ |
---|
835 | if (p != NULL) { |
---|
836 | p->m_next = n; |
---|
837 | } else { |
---|
838 | jc->frame = n; |
---|
839 | } |
---|
840 | } |
---|
841 | } while (n != NULL); |
---|
842 | |
---|
843 | if (fragments > SMSC9218I_TX_FRAGMENT_MAX) { |
---|
844 | printf("FIXME\n"); |
---|
845 | } |
---|
846 | |
---|
847 | /* Set frame length */ |
---|
848 | jc->frame_length = frame_length; |
---|
849 | |
---|
850 | /* Update next fragment */ |
---|
851 | jc->next_fragment = jc->frame->m_next; |
---|
852 | |
---|
853 | /* Update tag */ |
---|
854 | ++jc->tag; |
---|
855 | |
---|
856 | /* Command B */ |
---|
857 | jc->command_b = SMSC9218I_TX_B_TAG(jc->tag) |
---|
858 | | SMSC9218I_TX_B_FRAME_LENGTH(jc->frame_length); |
---|
859 | |
---|
860 | SMSC9218I_PRINTF( |
---|
861 | "tx: next frame: tag = %u, frame length = %" PRIu32 |
---|
862 | ", fragments = %u\n", |
---|
863 | (unsigned) jc->tag, |
---|
864 | frame_length, |
---|
865 | fragments |
---|
866 | ); |
---|
867 | } else { |
---|
868 | /* The transmit queue is empty, we have no next fragment */ |
---|
869 | jc->next_fragment = NULL; |
---|
870 | |
---|
871 | /* Interface is now inactive */ |
---|
872 | ifp->if_flags = CLEAR_FLAG(ifp->if_flags, IFF_OACTIVE); |
---|
873 | |
---|
874 | /* Transmit task may wait for events */ |
---|
875 | jc->done = true; |
---|
876 | |
---|
877 | SMSC9218I_PRINTF("tx: inactive\n"); |
---|
878 | } |
---|
879 | } |
---|
880 | |
---|
881 | return m; |
---|
882 | } |
---|
883 | |
---|
884 | static void smsc9218i_transmit_create_jobs( |
---|
885 | smsc9218i_transmit_job_control *jc, |
---|
886 | volatile smsc9218i_registers *const regs, |
---|
887 | struct ifnet *ifp |
---|
888 | ) |
---|
889 | { |
---|
890 | unsigned n = jc->empty; |
---|
891 | |
---|
892 | if (n > 0) { |
---|
893 | unsigned c = jc->todo_index; |
---|
894 | unsigned i = 0; |
---|
895 | |
---|
896 | #ifdef DEBUG |
---|
897 | smsc9218i_transmit_job_dump(jc, "create"); |
---|
898 | #endif |
---|
899 | |
---|
900 | for (i = 0; i < n; ++i) { |
---|
901 | struct mbuf *m = smsc9218i_next_transmit_fragment(ifp, jc); |
---|
902 | |
---|
903 | if (m != NULL) { |
---|
904 | uint32_t first = m == jc->frame ? SMSC9218I_TX_A_FIRST : 0; |
---|
905 | uint32_t last = m->m_next == NULL ? SMSC9218I_TX_A_LAST : 0; |
---|
906 | uint32_t fragment_length = (uint32_t) m->m_len; |
---|
907 | uint32_t fragment_misalign = (uint32_t) (mtod(m, uintptr_t) % 4); |
---|
908 | uint32_t data_length = fragment_misalign + fragment_length; |
---|
909 | uint32_t data_misalign = data_length % 4; |
---|
910 | uint32_t data = (uint32_t) (mtod(m, char *) - fragment_misalign); |
---|
911 | |
---|
912 | /* Align data length on four byte boundary */ |
---|
913 | if (data_misalign > 0) { |
---|
914 | data_length += 4 - data_misalign; |
---|
915 | } |
---|
916 | |
---|
917 | /* Cache flush for fragment data */ |
---|
918 | rtems_cache_flush_multiple_data_lines( |
---|
919 | (const void *) data, |
---|
920 | data_length |
---|
921 | ); |
---|
922 | |
---|
923 | asm volatile ( "sync"); |
---|
924 | |
---|
925 | /* Remember fragement */ |
---|
926 | jc->fragment_table [c] = m; |
---|
927 | |
---|
928 | /* Command A and B */ |
---|
929 | jc->command_table [c].a = SMSC9218I_TX_A_END_ALIGN_4 |
---|
930 | | SMSC9218I_TX_A_DOFF(fragment_misalign) |
---|
931 | | SMSC9218I_TX_A_FRAGMENT_LENGTH(fragment_length) |
---|
932 | | first |
---|
933 | | last; |
---|
934 | jc->command_table [c].b = jc->command_b; |
---|
935 | |
---|
936 | /* Data TCD */ |
---|
937 | jc->data_tcd_table [c].SADDR = data; |
---|
938 | jc->data_tcd_table [c].NBYTES = data_length; |
---|
939 | |
---|
940 | SMSC9218I_PRINTF("tx: create: index = %u\n", c); |
---|
941 | } else { |
---|
942 | /* Nothing to do */ |
---|
943 | break; |
---|
944 | } |
---|
945 | |
---|
946 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
947 | ++c; |
---|
948 | } else { |
---|
949 | c = 0; |
---|
950 | } |
---|
951 | } |
---|
952 | |
---|
953 | /* Increment jobs to do */ |
---|
954 | jc->todo += i; |
---|
955 | |
---|
956 | /* Decrement empty count */ |
---|
957 | jc->empty -= i; |
---|
958 | |
---|
959 | /* Update todo index */ |
---|
960 | jc->todo_index = c; |
---|
961 | |
---|
962 | #ifdef DEBUG |
---|
963 | smsc9218i_transmit_job_dump(jc, "create done"); |
---|
964 | #endif |
---|
965 | } else { |
---|
966 | /* Transmit task may wait for events */ |
---|
967 | jc->done = true; |
---|
968 | } |
---|
969 | } |
---|
970 | |
---|
971 | static void smsc9218i_transmit_do_jobs( |
---|
972 | smsc9218i_transmit_job_control *jc, |
---|
973 | volatile smsc9218i_registers *const regs, |
---|
974 | smsc9218i_driver_entry *e |
---|
975 | ) |
---|
976 | { |
---|
977 | if (jc->transfer == 0) { |
---|
978 | uint32_t tx_fifo_inf = regs->tx_fifo_inf; |
---|
979 | uint32_t data_free = SMSC9218I_TX_FIFO_INF_GET_FREE(tx_fifo_inf); |
---|
980 | unsigned c = jc->transfer_index; |
---|
981 | unsigned last_index = c; |
---|
982 | unsigned i = 0; |
---|
983 | unsigned n = jc->todo; |
---|
984 | struct tcd_t *p = NULL; |
---|
985 | |
---|
986 | #ifdef DEBUG |
---|
987 | smsc9218i_transmit_job_dump(jc, "transfer"); |
---|
988 | #endif |
---|
989 | |
---|
990 | for (i = 0; i < n; ++i) { |
---|
991 | struct tcd_t *tcd = &jc->data_tcd_table [c]; |
---|
992 | uint32_t data_length = tcd->NBYTES; |
---|
993 | |
---|
994 | if (data_length <= data_free) { |
---|
995 | /* Reduce free FIFO space */ |
---|
996 | data_free -= data_length; |
---|
997 | |
---|
998 | /* Index of last TCD */ |
---|
999 | last_index = c; |
---|
1000 | |
---|
1001 | /* Cache flush for previous data TCD */ |
---|
1002 | if (p != NULL) { |
---|
1003 | rtems_cache_flush_multiple_data_lines(p, sizeof(*p)); |
---|
1004 | } |
---|
1005 | } else { |
---|
1006 | break; |
---|
1007 | } |
---|
1008 | |
---|
1009 | p = tcd; |
---|
1010 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
1011 | ++c; |
---|
1012 | } else { |
---|
1013 | c = 0; |
---|
1014 | } |
---|
1015 | } |
---|
1016 | |
---|
1017 | if (i > 0) { |
---|
1018 | volatile struct tcd_t *channel = &EDMA.TCD [e->edma_transmit.channel]; |
---|
1019 | struct tcd_t *start = &jc->command_tcd_table [jc->transfer_index]; |
---|
1020 | struct tcd_t *last = &jc->data_tcd_table [last_index]; |
---|
1021 | |
---|
1022 | /* New transfer index */ |
---|
1023 | jc->transfer_index = c; |
---|
1024 | |
---|
1025 | /* New last transfer index */ |
---|
1026 | jc->transfer_last_index = last_index; |
---|
1027 | |
---|
1028 | /* Set jobs in transfer */ |
---|
1029 | jc->transfer = i; |
---|
1030 | |
---|
1031 | /* Decrement jobs to do */ |
---|
1032 | jc->todo -= i; |
---|
1033 | |
---|
1034 | /* Cache flush for command table */ |
---|
1035 | rtems_cache_flush_multiple_data_lines( |
---|
1036 | jc->command_table, |
---|
1037 | sizeof(jc->command_table) |
---|
1038 | ); |
---|
1039 | |
---|
1040 | /* Enable interrupt for last data TCD */ |
---|
1041 | last->BMF.R = SMSC9218I_EDMA_TX_TCD_BMF_INTERRUPT; |
---|
1042 | |
---|
1043 | /* Cache flush for last data TCD */ |
---|
1044 | rtems_cache_flush_multiple_data_lines(last, sizeof(*last)); |
---|
1045 | |
---|
1046 | /* Start eDMA transfer */ |
---|
1047 | channel->SADDR = start->SADDR; |
---|
1048 | channel->SDF.R = start->SDF.R; |
---|
1049 | channel->NBYTES = start->NBYTES; |
---|
1050 | channel->SLAST = start->SLAST; |
---|
1051 | channel->DADDR = start->DADDR; |
---|
1052 | channel->CDF.R = start->CDF.R; |
---|
1053 | channel->DLAST_SGA = start->DLAST_SGA; |
---|
1054 | channel->BMF.R = SMSC9218I_EDMA_TX_TCD_BMF_CLEAR; |
---|
1055 | channel->BMF.R = start->BMF.R; |
---|
1056 | |
---|
1057 | /* Transmit task may wait for events */ |
---|
1058 | jc->done = true; |
---|
1059 | } else if (n > 0) { |
---|
1060 | /* We need to wait until the FIFO has more free space */ |
---|
1061 | smsc9218i_enable_transmit_interrupts(regs); |
---|
1062 | |
---|
1063 | /* Transmit task may wait for events */ |
---|
1064 | jc->done = true; |
---|
1065 | } |
---|
1066 | |
---|
1067 | #ifdef DEBUG |
---|
1068 | smsc9218i_transmit_job_dump(jc, "transfer done"); |
---|
1069 | #endif |
---|
1070 | } |
---|
1071 | } |
---|
1072 | |
---|
1073 | static void smsc9218i_transmit_finish_jobs( |
---|
1074 | smsc9218i_transmit_job_control *jc, |
---|
1075 | volatile smsc9218i_registers *const regs, |
---|
1076 | smsc9218i_driver_entry *e, |
---|
1077 | rtems_event_set events |
---|
1078 | ) |
---|
1079 | { |
---|
1080 | uint32_t tx_fifo_inf = regs->tx_fifo_inf; |
---|
1081 | uint32_t status_used = SMSC9218I_TX_FIFO_INF_GET_SUSED(tx_fifo_inf); |
---|
1082 | uint32_t s = 0; |
---|
1083 | unsigned n = jc->transfer; |
---|
1084 | |
---|
1085 | for (s = 0; s < status_used; ++s) { |
---|
1086 | uint32_t tx_fifo_status = regs->tx_fifo_status; |
---|
1087 | |
---|
1088 | if (IS_FLAG_CLEARED(tx_fifo_status, SMSC9218I_TX_STS_ERROR)) { |
---|
1089 | ++e->transmitted_frames; |
---|
1090 | } else { |
---|
1091 | ++e->transmit_errors; |
---|
1092 | } |
---|
1093 | |
---|
1094 | SMSC9218I_PRINTF( |
---|
1095 | "tx: transmit status: tag = %" PRIu32 ", status = 0x%08" PRIx32 "\n", |
---|
1096 | SMSC9218I_TX_STS_GET_TAG(tx_fifo_status), |
---|
1097 | SMSC9218I_SWAP(tx_fifo_status) |
---|
1098 | ); |
---|
1099 | } |
---|
1100 | |
---|
1101 | if ( |
---|
1102 | IS_ANY_FLAG_SET(events, SMSC9218I_EVENT_EDMA | SMSC9218I_EVENT_EDMA_ERROR) |
---|
1103 | && n > 0 |
---|
1104 | ) { |
---|
1105 | unsigned c = jc->empty_index; |
---|
1106 | unsigned i = 0; |
---|
1107 | |
---|
1108 | #ifdef DEBUG |
---|
1109 | smsc9218i_transmit_job_dump(jc, "finish"); |
---|
1110 | #endif |
---|
1111 | |
---|
1112 | if (IS_FLAG_SET(events, SMSC9218I_EVENT_EDMA_ERROR)) { |
---|
1113 | ++e->transmit_edma_errors; |
---|
1114 | } |
---|
1115 | |
---|
1116 | /* Restore last data TCD */ |
---|
1117 | jc->data_tcd_table [jc->transfer_last_index].BMF.R = |
---|
1118 | SMSC9218I_EDMA_TX_TCD_BMF_LINK; |
---|
1119 | |
---|
1120 | for (i = 0; i < n; ++i) { |
---|
1121 | /* Free fragment buffer */ |
---|
1122 | m_free(jc->fragment_table [c]); |
---|
1123 | |
---|
1124 | if (c < SMSC9218I_TX_JOBS_MAX) { |
---|
1125 | ++c; |
---|
1126 | } else { |
---|
1127 | c = 0; |
---|
1128 | } |
---|
1129 | } |
---|
1130 | |
---|
1131 | /* Increment empty count */ |
---|
1132 | jc->empty += n; |
---|
1133 | |
---|
1134 | /* New empty index */ |
---|
1135 | jc->empty_index = jc->transfer_index; |
---|
1136 | |
---|
1137 | /* Clear jobs in transfer */ |
---|
1138 | jc->transfer = 0; |
---|
1139 | |
---|
1140 | /* Update empty index */ |
---|
1141 | jc->empty_index = c; |
---|
1142 | |
---|
1143 | #ifdef DEBUG |
---|
1144 | smsc9218i_transmit_job_dump(jc, "finish done"); |
---|
1145 | #endif |
---|
1146 | } |
---|
1147 | } |
---|
1148 | |
---|
1149 | /* FIXME */ |
---|
1150 | static smsc9218i_transmit_job_control smsc_jc __attribute__ ((aligned (32))) = { |
---|
1151 | .frame = NULL, |
---|
1152 | .next_fragment = NULL, |
---|
1153 | .frame_length = 0, |
---|
1154 | .tag = 0, |
---|
1155 | .command_b = 0, |
---|
1156 | .done = false, |
---|
1157 | .empty_index = 0, |
---|
1158 | .transfer_index = 0, |
---|
1159 | .todo_index = 0, |
---|
1160 | .empty = SMSC9218I_TX_JOBS, |
---|
1161 | .transfer = 0, |
---|
1162 | .todo = 0 |
---|
1163 | }; |
---|
1164 | |
---|
1165 | static void smsc9218i_transmit_task(void *arg) |
---|
1166 | { |
---|
1167 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
1168 | rtems_event_set events = 0; |
---|
1169 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) arg; |
---|
1170 | struct ifnet *ifp = &e->arpcom.ac_if; |
---|
1171 | volatile smsc9218i_registers *const regs = smsc9218i; |
---|
1172 | uint32_t mac_cr = 0; |
---|
1173 | smsc9218i_transmit_job_control *jc = &smsc_jc; |
---|
1174 | unsigned i = 0; |
---|
1175 | |
---|
1176 | SMSC9218I_PRINTF("%s\n", __func__); |
---|
1177 | |
---|
1178 | /* Obtain transmit eDMA channel */ |
---|
1179 | e->edma_transmit.id = e->transmit_task; |
---|
1180 | sc = mpc55xx_edma_obtain_channel(&e->edma_transmit); |
---|
1181 | RTEMS_CLEANUP_SC(sc, cleanup, "obtain transmit eDMA channel"); |
---|
1182 | |
---|
1183 | /* Setup transmit eDMA descriptors */ |
---|
1184 | for (i = 0; i < SMSC9218I_TX_JOBS; ++i) { |
---|
1185 | unsigned ii = i < SMSC9218I_TX_JOBS_MAX ? i + 1 : 0; |
---|
1186 | struct tcd_t tcd = EDMA_TCD_DEFAULT; |
---|
1187 | struct tcd_t *command_tcd = &jc->command_tcd_table [i]; |
---|
1188 | struct tcd_t *data_tcd = &jc->data_tcd_table [i]; |
---|
1189 | struct tcd_t *next_command_tcd = &jc->command_tcd_table [ii]; |
---|
1190 | |
---|
1191 | tcd.SDF.B.SSIZE = 2; |
---|
1192 | tcd.SDF.B.SOFF = 4; |
---|
1193 | tcd.SDF.B.DSIZE = 2; |
---|
1194 | tcd.CDF.B.CITER = 1; |
---|
1195 | tcd.BMF.R = SMSC9218I_EDMA_TX_TCD_BMF_LINK; |
---|
1196 | tcd.DADDR = (uint32_t) ®s->tx_fifo_data; |
---|
1197 | |
---|
1198 | tcd.DLAST_SGA = (uint32_t) next_command_tcd; |
---|
1199 | *data_tcd = tcd; |
---|
1200 | |
---|
1201 | tcd.SADDR = (uint32_t) &jc->command_table [i].a; |
---|
1202 | tcd.NBYTES = 8; |
---|
1203 | tcd.DLAST_SGA = (uint32_t) data_tcd; |
---|
1204 | *command_tcd = tcd; |
---|
1205 | } |
---|
1206 | |
---|
1207 | /* |
---|
1208 | * Cache flush for command TCD. The content of the command TCD remains |
---|
1209 | * invariant. |
---|
1210 | */ |
---|
1211 | rtems_cache_flush_multiple_data_lines( |
---|
1212 | jc->command_tcd_table, |
---|
1213 | sizeof(jc->command_tcd_table) |
---|
1214 | ); |
---|
1215 | |
---|
1216 | /* Configure transmitter */ |
---|
1217 | regs->tx_cfg = SMSC9218I_TX_CFG_SAO | SMSC9218I_TX_CFG_ON; |
---|
1218 | |
---|
1219 | /* Enable MAC transmitter */ |
---|
1220 | mac_cr = smsc9218i_mac_read(regs, SMSC9218I_MAC_CR) | SMSC9218I_MAC_CR_TXEN; |
---|
1221 | smsc9218i_mac_write(regs, SMSC9218I_MAC_CR, mac_cr); |
---|
1222 | |
---|
1223 | /* Main event loop */ |
---|
1224 | while (true) { |
---|
1225 | /* Wait for events */ |
---|
1226 | sc = rtems_bsdnet_event_receive( |
---|
1227 | SMSC9218I_EVENT_TX |
---|
1228 | | SMSC9218I_EVENT_TX_START |
---|
1229 | | SMSC9218I_EVENT_EDMA |
---|
1230 | | SMSC9218I_EVENT_EDMA_ERROR, |
---|
1231 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
1232 | RTEMS_NO_TIMEOUT, |
---|
1233 | &events |
---|
1234 | ); |
---|
1235 | RTEMS_CLEANUP_SC(sc, cleanup, "wait for events"); |
---|
1236 | |
---|
1237 | SMSC9218I_PRINTF("tx: wake up: events = 0x%08" PRIx32 "\n", events); |
---|
1238 | |
---|
1239 | do { |
---|
1240 | jc->done = false; |
---|
1241 | smsc9218i_transmit_finish_jobs(jc, regs, e, events); |
---|
1242 | smsc9218i_transmit_create_jobs(jc, regs, ifp); |
---|
1243 | smsc9218i_transmit_do_jobs(jc, regs, e); |
---|
1244 | } while (!jc->done); |
---|
1245 | |
---|
1246 | SMSC9218I_PRINTF("tx: done\n"); |
---|
1247 | } |
---|
1248 | |
---|
1249 | cleanup: |
---|
1250 | |
---|
1251 | /* Release network semaphore */ |
---|
1252 | rtems_bsdnet_semaphore_release(); |
---|
1253 | |
---|
1254 | /* Terminate self */ |
---|
1255 | (void) rtems_task_delete(RTEMS_SELF); |
---|
1256 | } |
---|
1257 | |
---|
1258 | #if defined(DEBUG) |
---|
1259 | static void smsc9218i_test_macros(void) |
---|
1260 | { |
---|
1261 | unsigned i = 0; |
---|
1262 | unsigned byte_test = 0x87654321U; |
---|
1263 | unsigned val8 = 0xa5; |
---|
1264 | unsigned val16 = 0xa55a; |
---|
1265 | int r = 0; |
---|
1266 | |
---|
1267 | r = SMSC9218I_SWAP(SMSC9218I_BYTE_TEST) == byte_test; |
---|
1268 | printf("[%i] SMSC9218I_SWAP\n", r); |
---|
1269 | |
---|
1270 | for (i = 0; i < 32; ++i) { |
---|
1271 | r = SMSC9218I_SWAP(SMSC9218I_FLAG(i)) == (1U << i); |
---|
1272 | printf("[%i] flag: %u\n", r, i); |
---|
1273 | } |
---|
1274 | |
---|
1275 | for (i = 0; i < 32; i += 8) { |
---|
1276 | r = SMSC9218I_SWAP(SMSC9218I_FIELD_8(val8, i)) == (val8 << i); |
---|
1277 | printf("[%i] field 8: %u\n", r, i); |
---|
1278 | } |
---|
1279 | |
---|
1280 | for (i = 0; i < 32; i += 16) { |
---|
1281 | r = SMSC9218I_SWAP(SMSC9218I_FIELD_16(val16, i)) == (val16 << i); |
---|
1282 | printf("[%i] field 16: %u\n", r, i); |
---|
1283 | } |
---|
1284 | |
---|
1285 | for (i = 0; i < 32; i += 8) { |
---|
1286 | r = SMSC9218I_GET_FIELD_8(SMSC9218I_BYTE_TEST, i) |
---|
1287 | == ((byte_test >> i) & 0xffU); |
---|
1288 | printf("[%i] get field 8: %u\n", r, i); |
---|
1289 | } |
---|
1290 | |
---|
1291 | for (i = 0; i < 32; i += 16) { |
---|
1292 | r = SMSC9218I_GET_FIELD_16(SMSC9218I_BYTE_TEST, i) |
---|
1293 | == ((byte_test >> i) & 0xffffU); |
---|
1294 | printf("[%i] get field 16: %u\n", r, i); |
---|
1295 | } |
---|
1296 | } |
---|
1297 | #endif |
---|
1298 | |
---|
1299 | static void smsc9218i_set_mac_address( |
---|
1300 | volatile smsc9218i_registers *regs, |
---|
1301 | unsigned char address [6] |
---|
1302 | ) |
---|
1303 | { |
---|
1304 | smsc9218i_mac_write( |
---|
1305 | regs, |
---|
1306 | SMSC9218I_MAC_ADDRL, |
---|
1307 | ((uint32_t) address [3] << 24) | ((uint32_t) address [2] << 16) |
---|
1308 | | ((uint32_t) address [1] << 8) | (uint32_t) address [0] |
---|
1309 | ); |
---|
1310 | smsc9218i_mac_write( |
---|
1311 | regs, |
---|
1312 | SMSC9218I_MAC_ADDRH, |
---|
1313 | ((uint32_t) address [5] << 8) | (uint32_t) address [4] |
---|
1314 | ); |
---|
1315 | } |
---|
1316 | |
---|
1317 | static void smsc9218i_mac_address_dump(volatile smsc9218i_registers *regs) |
---|
1318 | { |
---|
1319 | uint32_t low = smsc9218i_mac_read(regs, SMSC9218I_MAC_ADDRL); |
---|
1320 | uint32_t high = smsc9218i_mac_read(regs, SMSC9218I_MAC_ADDRH); |
---|
1321 | |
---|
1322 | printf( |
---|
1323 | "MAC address: %02" PRIx32 ":%02" PRIx32 ":%02" PRIx32 |
---|
1324 | ":%02" PRIx32 ":%02" PRIx32 ":%02" PRIx32 "\n", |
---|
1325 | low & 0xff, |
---|
1326 | (low >> 8) & 0xff, |
---|
1327 | (low >> 16) & 0xff, |
---|
1328 | (low >> 24) & 0xff, |
---|
1329 | high & 0xff, |
---|
1330 | (high >> 8) & 0xff |
---|
1331 | ); |
---|
1332 | } |
---|
1333 | |
---|
1334 | static void smsc9218i_interrupt_init( |
---|
1335 | smsc9218i_driver_entry *e, |
---|
1336 | volatile smsc9218i_registers *regs |
---|
1337 | ) |
---|
1338 | { |
---|
1339 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
1340 | union SIU_PCR_tag pcr = MPC55XX_ZERO_FLAGS; |
---|
1341 | union SIU_DIRER_tag direr = MPC55XX_ZERO_FLAGS; |
---|
1342 | union SIU_DIRSR_tag dirsr = MPC55XX_ZERO_FLAGS; |
---|
1343 | union SIU_ORER_tag orer = MPC55XX_ZERO_FLAGS; |
---|
1344 | union SIU_IREER_tag ireer = MPC55XX_ZERO_FLAGS; |
---|
1345 | union SIU_IFEER_tag ifeer = MPC55XX_ZERO_FLAGS; |
---|
1346 | union SIU_IDFR_tag idfr = MPC55XX_ZERO_FLAGS; |
---|
1347 | rtems_interrupt_level level; |
---|
1348 | |
---|
1349 | /* Configure IRQ input pin */ |
---|
1350 | pcr.B.PA = 2; |
---|
1351 | pcr.B.OBE = 0; |
---|
1352 | pcr.B.IBE = 1; |
---|
1353 | pcr.B.DSC = 0; |
---|
1354 | pcr.B.ODE = 0; |
---|
1355 | pcr.B.HYS = 0; |
---|
1356 | pcr.B.SRC = 3; |
---|
1357 | pcr.B.WPE = 0; |
---|
1358 | pcr.B.WPS = 1; |
---|
1359 | SIU.PCR [193].R = pcr.R; |
---|
1360 | |
---|
1361 | /* DMA/Interrupt Request Select */ |
---|
1362 | rtems_interrupt_disable(level); |
---|
1363 | dirsr.R = SIU.DIRSR.R; |
---|
1364 | dirsr.B.DIRS0 = 0; |
---|
1365 | SIU.DIRSR.R = dirsr.R; |
---|
1366 | rtems_interrupt_enable(level); |
---|
1367 | |
---|
1368 | /* Overrun Request Enable */ |
---|
1369 | rtems_interrupt_disable(level); |
---|
1370 | orer.R = SIU.ORER.R; |
---|
1371 | orer.B.ORE0 = 0; |
---|
1372 | SIU.ORER.R = orer.R; |
---|
1373 | rtems_interrupt_enable(level); |
---|
1374 | |
---|
1375 | /* IRQ Rising-Edge Enable */ |
---|
1376 | rtems_interrupt_disable(level); |
---|
1377 | ireer.R = SIU.IREER.R; |
---|
1378 | ireer.B.IREE0 = 0; |
---|
1379 | SIU.IREER.R = ireer.R; |
---|
1380 | rtems_interrupt_enable(level); |
---|
1381 | |
---|
1382 | /* IRQ Falling-Edge Enable */ |
---|
1383 | rtems_interrupt_disable(level); |
---|
1384 | ifeer.R = SIU.IFEER.R; |
---|
1385 | ifeer.B.IFEE0 = 1; |
---|
1386 | SIU.IFEER.R = ifeer.R; |
---|
1387 | rtems_interrupt_enable(level); |
---|
1388 | |
---|
1389 | /* IRQ Digital Filter */ |
---|
1390 | rtems_interrupt_disable(level); |
---|
1391 | idfr.R = SIU.IDFR.R; |
---|
1392 | idfr.B.DFL = 0; |
---|
1393 | SIU.IDFR.R = idfr.R; |
---|
1394 | rtems_interrupt_enable(level); |
---|
1395 | |
---|
1396 | /* Clear external interrupt status */ |
---|
1397 | SIU.EISR.R = 1; |
---|
1398 | |
---|
1399 | /* DMA/Interrupt Request Enable */ |
---|
1400 | rtems_interrupt_disable(level); |
---|
1401 | direr.R = SIU.DIRER.R; |
---|
1402 | direr.B.EIRE0 = 1; |
---|
1403 | SIU.DIRER.R = direr.R; |
---|
1404 | rtems_interrupt_enable(level); |
---|
1405 | |
---|
1406 | /* Install interrupt handler */ |
---|
1407 | sc = rtems_interrupt_handler_install( |
---|
1408 | MPC55XX_IRQ_SIU_EXTERNAL_0, |
---|
1409 | "SMSC9218i", |
---|
1410 | RTEMS_INTERRUPT_UNIQUE, |
---|
1411 | smsc9218i_interrupt_handler, |
---|
1412 | e |
---|
1413 | ); |
---|
1414 | RTEMS_SYSLOG_ERROR_SC(sc, "install interrupt handler\n"); |
---|
1415 | |
---|
1416 | /* Enable interrupts and use push-pull driver (active low) */ |
---|
1417 | regs->irq_cfg = SMSC9218I_IRQ_CFG_GLOBAL_ENABLE; |
---|
1418 | } |
---|
1419 | |
---|
1420 | static void smsc9218i_reset_signal(bool signal) |
---|
1421 | { |
---|
1422 | SIU.GPDO [186].R = signal ? 1 : 0; |
---|
1423 | } |
---|
1424 | |
---|
1425 | static void smsc9218i_reset_signal_init(void) |
---|
1426 | { |
---|
1427 | union SIU_PCR_tag pcr = MPC55XX_ZERO_FLAGS; |
---|
1428 | |
---|
1429 | smsc9218i_reset_signal(true); |
---|
1430 | |
---|
1431 | pcr.B.PA = 0; |
---|
1432 | pcr.B.OBE = 1; |
---|
1433 | pcr.B.IBE = 0; |
---|
1434 | pcr.B.DSC = 0; |
---|
1435 | pcr.B.ODE = 0; |
---|
1436 | pcr.B.HYS = 0; |
---|
1437 | pcr.B.SRC = 3; |
---|
1438 | pcr.B.WPE = 1; |
---|
1439 | pcr.B.WPS = 1; |
---|
1440 | |
---|
1441 | SIU.PCR [186].R = pcr.R; |
---|
1442 | } |
---|
1443 | |
---|
1444 | static void smsc9218i_interface_init(void *arg) |
---|
1445 | { |
---|
1446 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) arg; |
---|
1447 | struct ifnet *ifp = &e->arpcom.ac_if; |
---|
1448 | volatile smsc9218i_registers *const regs = smsc9218i; |
---|
1449 | |
---|
1450 | SMSC9218I_PRINTF("%s\n", __func__); |
---|
1451 | |
---|
1452 | if (e->state == SMSC9218I_CONFIGURED) { |
---|
1453 | /* Hardware reset */ |
---|
1454 | smsc9218i_reset_signal_init(); |
---|
1455 | smsc9218i_reset_signal(false); |
---|
1456 | rtems_bsp_delay(200); |
---|
1457 | smsc9218i_reset_signal(true); |
---|
1458 | |
---|
1459 | #if defined(DEBUG) |
---|
1460 | /* Register dump */ |
---|
1461 | smsc9218i_register_dump(regs); |
---|
1462 | #endif |
---|
1463 | |
---|
1464 | /* Set hardware configuration */ |
---|
1465 | regs->hw_cfg = SMSC9218I_HW_CFG_MBO | SMSC9218I_HW_CFG_TX_FIF_SZ(5); |
---|
1466 | |
---|
1467 | /* MAC address */ |
---|
1468 | smsc9218i_set_mac_address(regs, e->arpcom.ac_enaddr); |
---|
1469 | smsc9218i_mac_address_dump(regs); |
---|
1470 | |
---|
1471 | /* Initialize interrupts */ |
---|
1472 | smsc9218i_interrupt_init(e, regs); |
---|
1473 | |
---|
1474 | /* Set MAC control */ |
---|
1475 | smsc9218i_mac_write(regs, SMSC9218I_MAC_CR, SMSC9218I_MAC_CR_FDPX); |
---|
1476 | |
---|
1477 | /* Set FIFO interrupts */ |
---|
1478 | regs->fifo_int = SMSC9218I_FIFO_INT_TDAL(32); |
---|
1479 | |
---|
1480 | /* Start receive task */ |
---|
1481 | if (e->receive_task == RTEMS_ID_NONE) { |
---|
1482 | e->receive_task = rtems_bsdnet_newproc( |
---|
1483 | "ntrx", |
---|
1484 | 4096, |
---|
1485 | smsc9218i_receive_task, |
---|
1486 | e |
---|
1487 | ); |
---|
1488 | } |
---|
1489 | |
---|
1490 | /* Start transmit task */ |
---|
1491 | if (e->transmit_task == RTEMS_ID_NONE) { |
---|
1492 | e->transmit_task = rtems_bsdnet_newproc( |
---|
1493 | "nttx", |
---|
1494 | 4096, |
---|
1495 | smsc9218i_transmit_task, |
---|
1496 | e |
---|
1497 | ); |
---|
1498 | } |
---|
1499 | |
---|
1500 | /* Change state */ |
---|
1501 | if (e->receive_task != RTEMS_ID_NONE |
---|
1502 | && e->transmit_task != RTEMS_ID_NONE) { |
---|
1503 | e->state = SMSC9218I_STARTED; |
---|
1504 | } |
---|
1505 | } |
---|
1506 | |
---|
1507 | if (e->state == SMSC9218I_STARTED) { |
---|
1508 | /* Enable promiscous mode */ |
---|
1509 | smsc9218i_enable_promiscous_mode( |
---|
1510 | regs, |
---|
1511 | IS_FLAG_SET(ifp->if_flags, IFF_PROMISC) |
---|
1512 | ); |
---|
1513 | |
---|
1514 | /* Set interface to running state */ |
---|
1515 | ifp->if_flags = SET_FLAG(ifp->if_flags, IFF_RUNNING); |
---|
1516 | |
---|
1517 | /* Change state */ |
---|
1518 | e->state = SMSC9218I_RUNNING; |
---|
1519 | } |
---|
1520 | } |
---|
1521 | |
---|
1522 | static void smsc9218i_interface_stats(const smsc9218i_driver_entry *e) |
---|
1523 | { |
---|
1524 | printf("received frames: %u\n", e->received_frames); |
---|
1525 | printf("receive interrupts: %u\n", e->receive_interrupts); |
---|
1526 | printf("transmitted frames: %u\n", e->transmitted_frames); |
---|
1527 | printf("transmit interrupts: %u\n", e->transmit_interrupts); |
---|
1528 | printf("receive to long errors: %u\n", e->receive_too_long_errors); |
---|
1529 | printf("receive collision errors: %u\n", e->receive_collision_errors); |
---|
1530 | printf("receive CRC errors: %u\n", e->receive_crc_errors); |
---|
1531 | printf("receive eDMA errors: %u\n", e->receive_edma_errors); |
---|
1532 | printf("transmit errors: %u\n", e->transmit_errors); |
---|
1533 | printf("transmit eDMA errors: %u\n", e->transmit_edma_errors); |
---|
1534 | } |
---|
1535 | |
---|
1536 | static int smsc9218i_interface_ioctl( |
---|
1537 | struct ifnet *ifp, |
---|
1538 | ioctl_command_t command, |
---|
1539 | caddr_t data |
---|
1540 | ) { |
---|
1541 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) ifp->if_softc; |
---|
1542 | int rv = 0; |
---|
1543 | |
---|
1544 | SMSC9218I_PRINTF("%s\n", __func__); |
---|
1545 | |
---|
1546 | switch (command) { |
---|
1547 | case SIOCGIFMEDIA: |
---|
1548 | case SIOCSIFMEDIA: |
---|
1549 | rtems_mii_ioctl(&e->mdio_info, e, (int) command, (int *) data); |
---|
1550 | break; |
---|
1551 | case SIOCGIFADDR: |
---|
1552 | case SIOCSIFADDR: |
---|
1553 | ether_ioctl(ifp, command, data); |
---|
1554 | break; |
---|
1555 | case SIOCSIFFLAGS: |
---|
1556 | if (ifp->if_flags & IFF_RUNNING) { |
---|
1557 | /* TODO: off */ |
---|
1558 | } |
---|
1559 | if (ifp->if_flags & IFF_UP) { |
---|
1560 | ifp->if_flags = SET_FLAG(ifp->if_flags, IFF_RUNNING); |
---|
1561 | /* TODO: init */ |
---|
1562 | } |
---|
1563 | break; |
---|
1564 | case SIO_RTEMS_SHOW_STATS: |
---|
1565 | smsc9218i_interface_stats(e); |
---|
1566 | break; |
---|
1567 | default: |
---|
1568 | rv = EINVAL; |
---|
1569 | break; |
---|
1570 | } |
---|
1571 | |
---|
1572 | return rv; |
---|
1573 | } |
---|
1574 | |
---|
1575 | static void smsc9218i_interface_start(struct ifnet *ifp) |
---|
1576 | { |
---|
1577 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
1578 | smsc9218i_driver_entry *e = (smsc9218i_driver_entry *) ifp->if_softc; |
---|
1579 | |
---|
1580 | /* Interface is now active */ |
---|
1581 | ifp->if_flags = SET_FLAG(ifp->if_flags, IFF_OACTIVE); |
---|
1582 | |
---|
1583 | sc = rtems_event_send(e->transmit_task, SMSC9218I_EVENT_TX_START); |
---|
1584 | RTEMS_SYSLOG_ERROR_SC(sc, "send transmit start event"); |
---|
1585 | } |
---|
1586 | |
---|
1587 | static void smsc9218i_interface_watchdog(struct ifnet *ifp) |
---|
1588 | { |
---|
1589 | SMSC9218I_PRINTF("%s\n", __func__); |
---|
1590 | } |
---|
1591 | |
---|
1592 | static int smsc9218i_attach(struct rtems_bsdnet_ifconfig *config) |
---|
1593 | { |
---|
1594 | smsc9218i_driver_entry *e = &smsc9218i_driver_data; |
---|
1595 | struct ifnet *ifp = &e->arpcom.ac_if; |
---|
1596 | char *unit_name = NULL; |
---|
1597 | int unit_number = rtems_bsdnet_parse_driver_name(config, &unit_name); |
---|
1598 | |
---|
1599 | /* Check parameter */ |
---|
1600 | if (unit_number < 0) { |
---|
1601 | RTEMS_SYSLOG_ERROR("parse error for interface name\n"); |
---|
1602 | return 0; |
---|
1603 | } |
---|
1604 | if (unit_number != 0) { |
---|
1605 | RTEMS_DO_CLEANUP(smsc9218i_attach_cleanup, "unexpected unit number"); |
---|
1606 | } |
---|
1607 | if (config->hardware_address == NULL) { |
---|
1608 | RTEMS_DO_CLEANUP(smsc9218i_attach_cleanup, "MAC address missing"); |
---|
1609 | } |
---|
1610 | if (e->state != SMSC9218I_NOT_INITIALIZED) { |
---|
1611 | RTEMS_DO_CLEANUP(smsc9218i_attach_cleanup, "already attached"); |
---|
1612 | } |
---|
1613 | |
---|
1614 | /* Interrupt number */ |
---|
1615 | config->irno = MPC55XX_IRQ_SIU_EXTERNAL_0; |
---|
1616 | |
---|
1617 | /* Device control */ |
---|
1618 | config->drv_ctrl = e; |
---|
1619 | |
---|
1620 | /* Receive unit number */ |
---|
1621 | config->rbuf_count = 0; |
---|
1622 | |
---|
1623 | /* Transmit unit number */ |
---|
1624 | config->xbuf_count = 0; |
---|
1625 | |
---|
1626 | /* Copy MAC address */ |
---|
1627 | memcpy(e->arpcom.ac_enaddr, config->hardware_address, ETHER_ADDR_LEN); |
---|
1628 | |
---|
1629 | /* Set interface data */ |
---|
1630 | ifp->if_softc = e; |
---|
1631 | ifp->if_unit = (short) unit_number; |
---|
1632 | ifp->if_name = unit_name; |
---|
1633 | ifp->if_mtu = config->mtu > 0 ? (u_long) config->mtu : ETHERMTU; |
---|
1634 | ifp->if_init = smsc9218i_interface_init; |
---|
1635 | ifp->if_ioctl = smsc9218i_interface_ioctl; |
---|
1636 | ifp->if_start = smsc9218i_interface_start; |
---|
1637 | ifp->if_output = ether_output; |
---|
1638 | ifp->if_watchdog = smsc9218i_interface_watchdog; |
---|
1639 | ifp->if_flags = config->ignore_broadcast ? 0 : IFF_BROADCAST; |
---|
1640 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
---|
1641 | ifp->if_timer = 0; |
---|
1642 | |
---|
1643 | /* Change status */ |
---|
1644 | e->state = SMSC9218I_CONFIGURED; |
---|
1645 | |
---|
1646 | /* Attach the interface */ |
---|
1647 | if_attach(ifp); |
---|
1648 | ether_ifattach(ifp); |
---|
1649 | |
---|
1650 | return 1; |
---|
1651 | |
---|
1652 | smsc9218i_attach_cleanup: |
---|
1653 | |
---|
1654 | /* FIXME: Type */ |
---|
1655 | free(unit_name, (int) 0xdeadbeef); |
---|
1656 | |
---|
1657 | return 0; |
---|
1658 | } |
---|
1659 | |
---|
1660 | int smsc9218i_attach_detach( |
---|
1661 | struct rtems_bsdnet_ifconfig *config, |
---|
1662 | int attaching |
---|
1663 | ) { |
---|
1664 | /* FIXME: Return value */ |
---|
1665 | |
---|
1666 | if (attaching) { |
---|
1667 | return smsc9218i_attach(config); |
---|
1668 | } else { |
---|
1669 | /* TODO */ |
---|
1670 | return 0; |
---|
1671 | } |
---|
1672 | } |
---|