1 | /*
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2 | * Copyright (c) 2012 Petr Jerman
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | *
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9 | * - Redistributions of source code must retain the above copyright
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10 | * notice, this list of conditions and the following disclaimer.
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11 | * - Redistributions in binary form must reproduce the above copyright
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12 | * notice, this list of conditions and the following disclaimer in the
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13 | * documentation and/or other materials provided with the distribution.
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14 | * - The name of the author may not be used to endorse or promote products
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15 | * derived from this software without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 | */
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28 |
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29 | /** @file
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30 | * Header for AHCI driver (SATA/ATA and related things).
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31 | */
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32 |
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33 | #ifndef __AHCI_SATA_H__
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34 | #define __AHCI_SATA_H__
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35 |
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36 | #include <stdint.h>
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37 |
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38 | /*----------------------------------------------------------------------------*/
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39 | /*-- SATA Buffer Lengths -----------------------------------------------------*/
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40 | /*----------------------------------------------------------------------------*/
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41 |
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42 | /** Default sector size in bytes. */
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43 | #define SATA_DEFAULT_SECTOR_SIZE 512
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44 |
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45 | /** Size for set feature command buffer in bytes. */
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46 | #define SATA_SET_FEATURE_BUFFER_LENGTH 512
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47 |
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48 | /** Size for indentify (packet) device buffer in bytes. */
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49 | #define SATA_IDENTIFY_DEVICE_BUFFER_LENGTH 512
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50 |
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51 | /*----------------------------------------------------------------------------*/
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52 | /*-- SATA Fis Frames ---------------------------------------------------------*/
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53 | /*----------------------------------------------------------------------------*/
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54 |
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55 | /** Sata FIS Type number. */
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56 | #define SATA_CMD_FIS_TYPE 0x27
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57 |
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58 | /** Sata FIS Type command indicator. */
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59 | #define SATA_CMD_FIS_COMMAND_INDICATOR 0x80
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60 |
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61 | /** Standard Command frame. */
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62 | typedef struct {
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63 | /** FIS type - always SATA_CMD_FIS_TYPE. */
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64 | unsigned int fis_type : 8;
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65 | /** Indicate that FIS is a Command - always SATA_CMD_FIS_COMMAND_INDICATOR. */
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66 | unsigned int c : 8;
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67 | /** Command - Identity device - 0xec, Set fetures - 0xef. */
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68 | unsigned int command : 8;
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69 | /** Features - subcommand for set features - set tranfer mode - 0x03. */
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70 | unsigned int features : 8;
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71 | /** 0:23 bits of LBA. */
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72 | unsigned int lba_lower : 24;
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73 | /** Device. */
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74 | unsigned int device : 8;
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75 | /** 24:47 bits of LBA. */
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76 | unsigned int lba_upper : 24;
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77 | /** Features - subcommand for set features - set tranfer mode - 0x03. */
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78 | unsigned int features_upper : 8;
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79 | /** Sector count - transfer mode for set transfer mode operation. */
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80 | unsigned int count : 16;
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81 | /** Reserved. */
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82 | unsigned int reserved1 : 8;
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83 | /** Control. */
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84 | unsigned int control : 8;
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85 | /** Reserved. */
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86 | unsigned int reserved2 : 32;
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87 | } sata_std_command_frame_t;
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88 |
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89 | /** Command frame for NCQ data operation. */
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90 | typedef struct {
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91 | /** FIS type - always 0x27. */
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92 | uint8_t fis_type;
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93 | /** Indicate that FIS is a Command - always SATA_CMD_FIS_COMMAND_INDICATOR. */
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94 | uint8_t c;
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95 | /** Command - FPDMA Read - 0x60, FPDMA Write - 0x61. */
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96 | uint8_t command;
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97 | /** bits 7:0 of sector count. */
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98 | uint8_t sector_count_low;
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99 | /** bits 7:0 of lba. */
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100 | uint8_t lba0;
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101 | /** bits 15:8 of lba. */
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102 | uint8_t lba1;
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103 | /** bits 23:16 of lba. */
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104 | uint8_t lba2;
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105 | uint8_t fua;
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106 | /** bits 31:24 of lba. */
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107 | uint8_t lba3;
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108 | /** bits 39:32 of lba. */
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109 | uint8_t lba4;
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110 | /** bits 47:40 of lba. */
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111 | uint8_t lba5;
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112 | /** bits 15:8 of sector count. */
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113 | uint8_t sector_count_high;
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114 | /** Tag number of NCQ operation. */
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115 | uint8_t tag;
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116 | /** Reserved. */
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117 | uint8_t reserved1;
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118 | /** Reserved. */
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119 | uint8_t reserved2;
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120 | /** Control. */
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121 | uint8_t control;
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122 | /** Reserved. */
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123 | uint8_t reserved3;
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124 | /** Reserved. */
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125 | uint8_t reserved4;
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126 | /** Reserved. */
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127 | uint8_t reserved5;
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128 | /** Reserved. */
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129 | uint8_t reserved6;
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130 | } sata_ncq_command_frame_t;
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131 |
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132 | /*----------------------------------------------------------------------------*/
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133 | /*-- SATA Identify device ----------------------------------------------------*/
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134 | /*----------------------------------------------------------------------------*/
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135 |
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136 | /** Data returned from identify device and identify packet device command. */
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137 | typedef struct {
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138 | uint16_t gen_conf;
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139 | uint16_t cylinders;
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140 | uint16_t reserved2;
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141 | uint16_t heads;
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142 | uint16_t _vs4;
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143 | uint16_t _vs5;
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144 | uint16_t sectors;
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145 | uint16_t _vs7;
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146 | uint16_t _vs8;
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147 | uint16_t _vs9;
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148 |
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149 | uint16_t serial_number[10];
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150 | uint16_t _vs20;
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151 | uint16_t _vs21;
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152 | uint16_t vs_bytes;
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153 | uint16_t firmware_rev[4];
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154 | uint16_t model_name[20];
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155 |
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156 | uint16_t max_rw_multiple;
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157 | uint16_t reserved48;
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158 | /* Different meaning for packet device. */
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159 | uint16_t caps;
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160 | uint16_t reserved50;
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161 | uint16_t pio_timing;
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162 | uint16_t dma_timing;
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163 |
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164 | uint16_t validity;
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165 | uint16_t cur_cyl;
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166 | uint16_t cur_heads;
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167 | uint16_t cur_sectors;
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168 | uint16_t cur_capacity0;
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169 | uint16_t cur_capacity1;
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170 | uint16_t mss;
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171 | uint16_t total_lba28_0;
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172 | uint16_t total_lba28_1;
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173 | uint16_t sw_dma;
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174 | uint16_t mw_dma;
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175 | uint16_t pio_modes;
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176 | uint16_t min_mw_dma_cycle;
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177 | uint16_t rec_mw_dma_cycle;
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178 | uint16_t min_raw_pio_cycle;
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179 | uint16_t min_iordy_pio_cycle;
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180 |
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181 | uint16_t reserved69;
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182 | uint16_t reserved70;
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183 | uint16_t reserved71;
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184 | uint16_t reserved72;
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185 | uint16_t reserved73;
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186 | uint16_t reserved74;
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187 |
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188 | uint16_t queue_depth;
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189 | /** SATA capatibilities - different meaning for packet device. */
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190 | uint16_t sata_cap;
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191 | /** SATA additional capatibilities - different meaning for packet device. */
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192 | uint16_t sata_cap2;
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193 | uint16_t reserved78[1 + 79 - 78];
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194 | uint16_t version_maj;
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195 | uint16_t version_min;
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196 | uint16_t cmd_set0;
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197 | uint16_t cmd_set1;
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198 | uint16_t csf_sup_ext;
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199 | uint16_t csf_enabled0;
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200 | uint16_t csf_enabled1;
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201 | uint16_t csf_default;
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202 | uint16_t udma;
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203 |
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204 | uint16_t reserved89[1 + 99 - 89];
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205 |
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206 | /* Total number of blocks in LBA-48 addressing. */
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207 | uint16_t total_lba48_0;
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208 | uint16_t total_lba48_1;
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209 | uint16_t total_lba48_2;
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210 | uint16_t total_lba48_3;
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211 |
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212 | uint16_t reserved104[1 + 105 - 104];
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213 | uint16_t physical_logic_sector_size;
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214 | /* Note: more fields are defined in ATA/ATAPI-7. */
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215 | uint16_t reserved107[1 + 127 - 107];
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216 | uint16_t reserved128[1 + 159 - 128];
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217 | uint16_t reserved160[1 + 255 - 160];
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218 | } sata_identify_data_t;
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219 |
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220 | /** Capability bits for register device. */
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221 | enum sata_rd_caps {
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222 | sata_rd_cap_iordy = 0x0800,
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223 | sata_rd_cap_iordy_cbd = 0x0400,
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224 | sata_rd_cap_lba = 0x0200,
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225 | sata_rd_cap_dma = 0x0100
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226 | };
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227 |
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228 | /** Bits of @c identify_data_t.cmd_set1. */
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229 | enum sata_cs1 {
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230 | /** 48-bit address feature set. */
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231 | sata_cs1_addr48 = 0x0400
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232 | };
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233 |
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234 | /** SATA capatibilities for not packet device - Serial ATA revision 3_1. */
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235 | enum sata_np_caps {
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236 | /** Supports READ LOG DMA EXT. */
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237 | sata_np_cap_log_ext = 0x8000,
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238 | /** Supports Device Automatic Partial to Slumber transitions. */
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239 | sata_np_cap_dev_slm = 0x4000,
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240 | /** Supports Host Automatic Partial to Slumber transitions. */
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241 | sata_np_cap_host_slm = 0x2000,
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242 | /** Supports NCQ priority information. */
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243 | sata_np_cap_ncq_prio = 0x1000,
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244 | /** Supports Unload while NCQ command outstanding. */
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245 | sata_np_cap_unload_ncq = 0x0800,
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246 | /** Supports Phy event counters. */
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247 | sata_np_cap_phy_ctx = 0x0400,
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248 | /** Supports recepits of host-initiated interface power management. */
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249 | sata_np_cap_host_pmngmnt = 0x0200,
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250 |
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251 | /** Supports NCQ. */
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252 | sata_np_cap_ncq = 0x0100,
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253 |
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254 | /** Supports SATA 3. */
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255 | sata_np_cap_sata_3 = 0x0008,
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256 | /** Supports SATA 2. */
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257 | sata_np_cap_sata_2 = 0x0004,
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258 | /** Supports SATA 1. */
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259 | sata_np_cap_sata_1 = 0x0002
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260 | };
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261 |
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262 | /** SATA capatibilities for packet device - Serial ATA revision 3_1. */
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263 | enum sata_pt_caps {
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264 | /** Supports READ LOG DMA EXT. */
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265 | sata_pt_cap_log_ext = 0x8000,
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266 | /** Supports Device Automatic Partial to Slumber transitions. */
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267 | sata_pt_cap_dev_slm = 0x4000,
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268 | /** Supports Host Automatic Partial to Slumber transitions. */
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269 | sata_pt_cap_host_slm = 0x2000,
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270 | /** Supports Phy event counters. */
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271 | sata_pt_cap_phy_ctx = 0x0400,
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272 | /** Supports recepits of host-initiated interface power management. */
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273 | sata_pt_cap_host_pmngmnt = 0x0200,
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274 |
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275 | /** Supports SATA 3. */
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276 | sata_pt_cap_sat_3 = 0x0008,
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277 | /** Supports SATA 2. */
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278 | sata_pt_cap_sat_2 = 0x0004,
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279 | /** Supports SATA 1. */
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280 | sata_pt_cap_sat_1 = 0x0002
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281 | };
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282 |
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283 | #endif
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