Changeset d770deb in mainline for uspace/srv/bd/ata_bd/ata_bd.h
- Timestamp:
- 2010-12-30T13:56:00Z (14 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- e092dc5
- Parents:
- ea28272
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
uspace/srv/bd/ata_bd/ata_bd.h
rea28272 rd770deb 30 30 * @{ 31 31 */ 32 /** @file 32 /** @file ATA driver definitions. 33 33 */ 34 34 … … 40 40 #include <str.h> 41 41 42 enum {43 CTL_READ_START = 0,44 CTL_WRITE_START = 1,45 };46 47 enum {48 STATUS_FAILURE = 049 };50 51 enum {52 MAX_DISKS = 253 };54 55 /** ATA Command Register Block. */56 typedef union {57 /* Read/Write */58 struct {59 uint16_t data_port;60 uint8_t sector_count;61 uint8_t sector_number;62 uint8_t cylinder_low;63 uint8_t cylinder_high;64 uint8_t drive_head;65 uint8_t pad_rw0;66 };67 68 /* Read Only */69 struct {70 uint8_t pad_ro0;71 uint8_t error;72 uint8_t pad_ro1[5];73 uint8_t status;74 };75 76 /* Write Only */77 struct {78 uint8_t pad_wo0;79 uint8_t features;80 uint8_t pad_wo1[5];81 uint8_t command;82 };83 } ata_cmd_t;84 85 typedef union {86 /* Read */87 struct {88 uint8_t pad0[6];89 uint8_t alt_status;90 uint8_t drive_address;91 };92 93 /* Write */94 struct {95 uint8_t pad1[6];96 uint8_t device_control;97 uint8_t pad2;98 };99 } ata_ctl_t;100 101 enum devctl_bits {102 DCR_SRST = 0x04, /**< Software Reset */103 DCR_nIEN = 0x02 /**< Interrupt Enable (negated) */104 };105 106 enum status_bits {107 SR_BSY = 0x80, /**< Busy */108 SR_DRDY = 0x40, /**< Drive Ready */109 SR_DWF = 0x20, /**< Drive Write Fault */110 SR_DSC = 0x10, /**< Drive Seek Complete */111 SR_DRQ = 0x08, /**< Data Request */112 SR_CORR = 0x04, /**< Corrected Data */113 SR_IDX = 0x02, /**< Index */114 SR_ERR = 0x01 /**< Error */115 };116 117 enum drive_head_bits {118 DHR_LBA = 0x40, /**< Use LBA addressing mode */119 DHR_DRV = 0x10 /**< Select device 1 */120 };121 122 enum error_bits {123 ER_BBK = 0x80, /**< Bad Block Detected */124 ER_UNC = 0x40, /**< Uncorrectable Data Error */125 ER_MC = 0x20, /**< Media Changed */126 ER_IDNF = 0x10, /**< ID Not Found */127 ER_MCR = 0x08, /**< Media Change Request */128 ER_ABRT = 0x04, /**< Aborted Command */129 ER_TK0NF = 0x02, /**< Track 0 Not Found */130 ER_AMNF = 0x01 /**< Address Mark Not Found */131 };132 133 enum ata_command {134 CMD_READ_SECTORS = 0x20,135 CMD_READ_SECTORS_EXT = 0x24,136 CMD_WRITE_SECTORS = 0x30,137 CMD_WRITE_SECTORS_EXT = 0x34,138 CMD_IDENTIFY_DRIVE = 0xEC139 };140 141 42 /** Timeout definitions. Unit is 10 ms. */ 142 43 enum ata_timeout { … … 144 45 TIMEOUT_BSY = 100, /* 1 s */ 145 46 TIMEOUT_DRDY = 1000 /* 10 s */ 146 };147 148 /** Data returned from @c identify command. */149 typedef struct {150 uint16_t gen_conf;151 uint16_t cylinders;152 uint16_t _res2;153 uint16_t heads;154 uint16_t _vs4;155 uint16_t _vs5;156 uint16_t sectors;157 uint16_t _vs7;158 uint16_t _vs8;159 uint16_t _vs9;160 161 uint16_t serial_number[10];162 uint16_t _vs20;163 uint16_t _vs21;164 uint16_t vs_bytes;165 uint16_t firmware_rev[4];166 uint16_t model_name[20];167 168 uint16_t max_rw_multiple;169 uint16_t _res48;170 uint16_t caps;171 uint16_t _res50;172 uint16_t pio_timing;173 uint16_t dma_timing;174 175 uint16_t validity;176 uint16_t cur_cyl;177 uint16_t cur_heads;178 uint16_t cur_sectors;179 uint16_t cur_capacity0;180 uint16_t cur_capacity1;181 uint16_t mss;182 uint16_t total_lba28_0;183 uint16_t total_lba28_1;184 uint16_t sw_dma;185 uint16_t mw_dma;186 uint16_t pio_modes;187 uint16_t min_mw_dma_cycle;188 uint16_t rec_mw_dma_cycle;189 uint16_t min_raw_pio_cycle;190 uint16_t min_iordy_pio_cycle;191 192 uint16_t _res69;193 uint16_t _res70;194 uint16_t _res71;195 uint16_t _res72;196 uint16_t _res73;197 uint16_t _res74;198 199 uint16_t queue_depth;200 uint16_t _res76[1 + 79 - 76];201 uint16_t version_maj;202 uint16_t version_min;203 uint16_t cmd_set0;204 uint16_t cmd_set1;205 uint16_t csf_sup_ext;206 uint16_t csf_enabled0;207 uint16_t csf_enabled1;208 uint16_t csf_default;209 uint16_t udma;210 211 uint16_t _res89[1 + 99 - 89];212 213 /* Total number of blocks in LBA-48 addressing */214 uint16_t total_lba48_0;215 uint16_t total_lba48_1;216 uint16_t total_lba48_2;217 uint16_t total_lba48_3;218 219 /* Note: more fields are defined in ATA/ATAPI-7 */220 uint16_t _res104[1 + 127 - 104];221 uint16_t _vs128[1 + 159 - 128];222 uint16_t _res160[1 + 255 - 160];223 } identify_data_t;224 225 enum ata_caps {226 cap_iordy = 0x0800,227 cap_iordy_cbd = 0x0400,228 cap_lba = 0x0200,229 cap_dma = 0x0100230 };231 232 /** Bits of @c identify_data_t.cmd_set1 */233 enum ata_cs1 {234 cs1_addr48 = 0x0400 /**< 48-bit address feature set */235 47 }; 236 48
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