Changeset bb0eab1 in mainline for uspace/srv/bd/ata_bd/ata_hw.h

Timestamp:

2011-02-01T07:27:32Z (14 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

aa893e0

Parents:

0d247f5

Message:

Use structures and constants instead of magic numbers.

File:

• uspace/srv/bd/ata_bd/ata_hw.h (modified) (1 diff)

uspace/srv/bd/ata_bd/ata_hw.h

@@ -241 +241 @@
 };
 
+/** ATA packet command codes. */
+enum ata_pkt_command {
+        PCMD_INQUIRY            = 0x12,
+        PCMD_READ_12            = 0xa8
+};
+
+/** ATAPI Inquiry command */
+typedef struct {
+        uint8_t opcode;         /**< Operation code (PCMD_INQUIRY) */
+        uint8_t _res0;
+        uint8_t _res1;
+        uint8_t _res2;
+        uint8_t alloc_len;      /**< Allocation length */
+        uint8_t _res3;
+        uint8_t _res4;
+        uint8_t _res5;
+        uint32_t _res6;
+} __attribute__ ((packed)) ata_pcmd_inquiry_t;
+
+/** ATAPI Read(12) command */
+typedef struct {
+        uint8_t opcode;         /**< Operation code (PCMD_READ_12) */
+        uint8_t _res0;
+        uint32_t ba;            /**< Starting block address */
+        uint32_t nblocks;       /**< Number of blocks to transfer */
+        uint8_t _res1;
+        uint8_t _res2;
+} __attribute__ ((packed)) ata_pcmd_read_12_t;
+
+/** Data returned from Inquiry command (mandatory part) */
+typedef struct {
+        uint8_t pdev_type;      /** Reserved, Peripheral device type */
+        uint8_t rmb;            /** RMB, Reserved */
+        uint8_t std_version;    /** ISO version, ECMA version, ANSI version */
+        uint8_t atapi_ver_rdf;  /** ATAPI version, Response data format */
+        uint8_t additional_len; /** Additional length */
+        uint8_t _res0;
+        uint8_t _res1;
+        uint8_t _res2;
+        uint8_t vendor_id[8];   /** Vendor ID */
+        uint8_t product_id[8];  /** Product ID */
+        uint8_t product_rev[4]; /** Product revision level */
+} ata_inquiry_data_t;
+
+/** Extract value of ata_inquiry_data_t.pdev_type */
+#define INQUIRY_PDEV_TYPE(val) ((val) & 0x1f)
+
+/** Values for ata_inquiry_data_t.pdev_type */
+enum ata_pdev_type {
+        PDEV_TYPE_CDROM         = 0x05
+};
+
 #endif