Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 225 insertions, 0 deletions

diff --git a/include/grub/ata.h b/include/grub/ata.h
new file mode 100644
index 0000000..e8a84b8
--- /dev/null
+++ b/include/grub/ata.h
@@ -0,0 +1,225 @@
+/* ata.h - ATA disk access.  */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_ATA_HEADER
+#define GRUB_ATA_HEADER 1
+
+#include <grub/misc.h>
+#include <grub/symbol.h>
+#include <grub/disk.h>
+/* XXX: For now this only works on i386.  */
+#include <grub/cpu/io.h>
+
+typedef enum
+  {
+    GRUB_ATA_CHS,
+    GRUB_ATA_LBA,
+    GRUB_ATA_LBA48
+  } grub_ata_addressing_t;
+
+#define GRUB_ATA_CH0_PORT1 0x1f0
+#define GRUB_ATA_CH1_PORT1 0x170
+
+#define GRUB_ATA_CH0_PORT2 0x3f6
+#define GRUB_ATA_CH1_PORT2 0x376
+
+#define GRUB_ATA_REG_DATA	0
+#define GRUB_ATA_REG_ERROR	1
+#define GRUB_ATA_REG_FEATURES	1
+#define GRUB_ATA_REG_SECTORS	2
+#define GRUB_ATAPI_REG_IREASON	2
+#define GRUB_ATA_REG_SECTNUM	3
+#define GRUB_ATA_REG_CYLLSB	4
+#define GRUB_ATA_REG_CYLMSB	5
+#define GRUB_ATA_REG_LBALOW	3
+#define GRUB_ATA_REG_LBAMID	4
+#define GRUB_ATAPI_REG_CNTLOW	4
+#define GRUB_ATA_REG_LBAHIGH	5
+#define GRUB_ATAPI_REG_CNTHIGH	5
+#define GRUB_ATA_REG_DISK	6
+#define GRUB_ATA_REG_CMD	7
+#define GRUB_ATA_REG_STATUS	7
+
+#define GRUB_ATA_REG2_CONTROL	0
+
+#define GRUB_ATA_STATUS_ERR	0x01
+#define GRUB_ATA_STATUS_INDEX	0x02
+#define GRUB_ATA_STATUS_ECC	0x04
+#define GRUB_ATA_STATUS_DRQ	0x08
+#define GRUB_ATA_STATUS_SEEK	0x10
+#define GRUB_ATA_STATUS_WRERR	0x20
+#define GRUB_ATA_STATUS_READY	0x40
+#define GRUB_ATA_STATUS_BUSY	0x80
+
+/* ATAPI interrupt reason values (I/O, D/C bits).  */
+#define GRUB_ATAPI_IREASON_MASK     0x3
+#define GRUB_ATAPI_IREASON_DATA_OUT 0x0
+#define GRUB_ATAPI_IREASON_CMD_OUT  0x1
+#define GRUB_ATAPI_IREASON_DATA_IN  0x2
+#define GRUB_ATAPI_IREASON_ERROR    0x3
+
+enum grub_ata_commands
+  {
+    GRUB_ATA_CMD_CHECK_POWER_MODE	= 0xe5,
+    GRUB_ATA_CMD_IDENTIFY_DEVICE	= 0xec,
+    GRUB_ATA_CMD_IDENTIFY_PACKET_DEVICE	= 0xa1,
+    GRUB_ATA_CMD_IDLE			= 0xe3,
+    GRUB_ATA_CMD_PACKET			= 0xa0,
+    GRUB_ATA_CMD_READ_SECTORS		= 0x20,
+    GRUB_ATA_CMD_READ_SECTORS_EXT	= 0x24,
+    GRUB_ATA_CMD_READ_SECTORS_DMA	= 0xc8,
+    GRUB_ATA_CMD_READ_SECTORS_DMA_EXT	= 0x25,
+
+    GRUB_ATA_CMD_SECURITY_FREEZE_LOCK	= 0xf5,
+    GRUB_ATA_CMD_SET_FEATURES		= 0xef,
+    GRUB_ATA_CMD_SLEEP			= 0xe6,
+    GRUB_ATA_CMD_SMART			= 0xb0,
+    GRUB_ATA_CMD_STANDBY_IMMEDIATE	= 0xe0,
+    GRUB_ATA_CMD_WRITE_SECTORS		= 0x30,
+    GRUB_ATA_CMD_WRITE_SECTORS_EXT	= 0x34,
+    GRUB_ATA_CMD_WRITE_SECTORS_DMA_EXT	= 0x35,
+    GRUB_ATA_CMD_WRITE_SECTORS_DMA	= 0xca,
+  };
+
+enum grub_ata_timeout_milliseconds
+  {
+    GRUB_ATA_TOUT_STD  =  1000,  /* 1s standard timeout.  */
+    GRUB_ATA_TOUT_DATA = 10000,   /* 10s DATA I/O timeout.  */
+    GRUB_ATA_TOUT_SPINUP  =  10000,  /* Give the device 10s on first try to spinon.  */
+  };
+
+typedef union
+{
+  grub_uint8_t raw[11];
+  struct
+  {
+    union
+    {
+      grub_uint8_t features;
+      grub_uint8_t error;
+    };
+    union
+    {
+      grub_uint8_t sectors;
+      grub_uint8_t atapi_ireason;
+    };
+    union
+    {
+      grub_uint8_t lba_low;
+      grub_uint8_t sectnum;
+    };
+    union
+    {
+      grub_uint8_t lba_mid;
+      grub_uint8_t cyllsb;
+      grub_uint8_t atapi_cntlow;
+    };
+    union
+    {
+      grub_uint8_t lba_high;
+      grub_uint8_t cylmsb;
+      grub_uint8_t atapi_cnthigh;
+    };
+    grub_uint8_t disk;
+    union
+    {
+      grub_uint8_t cmd;
+      grub_uint8_t status;
+    };
+    grub_uint8_t sectors48;
+    grub_uint8_t lba48_low;
+    grub_uint8_t lba48_mid;
+    grub_uint8_t lba48_high;
+  };
+} grub_ata_regs_t;
+
+/* ATA pass through parameters and function.  */
+struct grub_disk_ata_pass_through_parms
+{
+  grub_ata_regs_t taskfile;
+  void * buffer;
+  grub_size_t size;
+  int write;
+  void *cmd;
+  int cmdsize;
+  int dma;
+};
+
+struct grub_ata
+{
+  /* Addressing methods available for accessing this device.  If CHS
+     is only available, use that.  Otherwise use LBA, except for the
+     high sectors.  In that case use LBA48.  */
+  grub_ata_addressing_t addr;
+
+  /* Sector count.  */
+  grub_uint64_t size;
+  grub_uint32_t log_sector_size;
+
+  /* CHS maximums.  */
+  grub_uint16_t cylinders;
+  grub_uint16_t heads;
+  grub_uint16_t sectors_per_track;
+
+  /* Set to 0 for ATA, set to 1 for ATAPI.  */
+  int atapi;
+
+  int dma;
+
+  grub_size_t maxbuffer;
+
+  int *present;
+
+  void *data;
+
+  struct grub_ata_dev *dev;
+};
+
+typedef struct grub_ata *grub_ata_t;
+
+typedef int (*grub_ata_dev_iterate_hook_t) (int id, int bus, void *data);
+
+struct grub_ata_dev
+{
+  /* Call HOOK with each device name, until HOOK returns non-zero.  */
+  int (*iterate) (grub_ata_dev_iterate_hook_t hook, void *hook_data,
+		  grub_disk_pull_t pull);
+
+  /* Open the device named NAME, and set up SCSI.  */
+  grub_err_t (*open) (int id, int bus, struct grub_ata *scsi);
+
+  /* Close the scsi device SCSI.  */
+  void (*close) (struct grub_ata *ata);
+
+  /* Read SIZE bytes from the device SCSI into BUF after sending the
+     command CMD of size CMDSIZE.  */
+  grub_err_t (*readwrite) (struct grub_ata *ata,
+			   struct grub_disk_ata_pass_through_parms *parms,
+			   int spinup);
+
+  /* The next scsi device.  */
+  struct grub_ata_dev *next;
+};
+
+typedef struct grub_ata_dev *grub_ata_dev_t;
+
+void grub_ata_dev_register (grub_ata_dev_t dev);
+void grub_ata_dev_unregister (grub_ata_dev_t dev);
+
+#endif /* ! GRUB_ATA_HEADER */