Changes in uspace/srv/bd/ata_bd/ata_hw.h [d770deb:bb0eab1] in mainline

File:

• uspace/srv/bd/ata_bd/ata_hw.h (modified) (4 diffs)

uspace/srv/bd/ata_bd/ata_hw.h

@@ -134 +134 @@
         CMD_WRITE_SECTORS       = 0x30,
         CMD_WRITE_SECTORS_EXT   = 0x34,
+        CMD_PACKET              = 0xA0,
+        CMD_IDENTIFY_PKT_DEV    = 0xA1,
         CMD_IDENTIFY_DRIVE      = 0xEC
 };
 
-/** Data returned from @c identify command. */
+/** Data returned from identify device and identify packet device command. */
 typedef struct {
         uint16_t gen_conf;
@@ -159 +161 @@
         uint16_t max_rw_multiple;
         uint16_t _res48;
-        uint16_t caps;
+        uint16_t caps;          /* Different meaning for packet device */
         uint16_t _res50;
         uint16_t pio_timing;
@@ -214 +216 @@
 } identify_data_t;
 
-enum ata_caps {
-        cap_iordy       = 0x0800,
-        cap_iordy_cbd   = 0x0400,
-        cap_lba         = 0x0200,
-        cap_dma         = 0x0100
+/** Capability bits for register device. */
+enum ata_regdev_caps {
+        rd_cap_iordy            = 0x0800,
+        rd_cap_iordy_cbd        = 0x0400,
+        rd_cap_lba              = 0x0200,
+        rd_cap_dma              = 0x0100
+};
+
+/** Capability bits for packet device. */
+enum ata_pktdev_caps {
+        pd_cap_ildma            = 0x8000,
+        pd_cap_cmdqueue         = 0x4000,
+        pd_cap_overlap          = 0x2000,
+        pd_cap_need_softreset   = 0x1000,       /* Obsolete (ATAPI-6) */
+        pd_cap_iordy            = 0x0800,
+        pd_cap_iordy_dis        = 0x0400,
+        pd_cap_lba              = 0x0200,       /* Must be on */
+        pd_cap_dma              = 0x0100
 };
 
@@ -226 +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