Changeset 7a56e33e in mainline for uspace/srv/bd/ata_bd/ata_hw.h

Timestamp:

2011-01-29T05:10:07Z (13 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

88743b5

Parents:

ae0300b5

Message:

Detection of ATA packet devices.

File:

• uspace/srv/bd/ata_bd/ata_hw.h (modified) (3 diffs)

uspace/srv/bd/ata_bd/ata_hw.h

@@ -134 +134 @@
         CMD_WRITE_SECTORS       = 0x30,
         CMD_WRITE_SECTORS_EXT   = 0x34,
+        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 +160 @@
         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 +215 @@
 } 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
 };