2002-10-28 Eugeny S. Mints <Eugeny.Mints@oktet.ru>

	* New files: New directory ide/, ide/Makefile.am, ide/ide_ctrl_cfg.h,
	ide/ide_ctrl_io.h, ide/ide_ctrl.h:
	* configure.ac, Makefile.am: Modified to reflect changes above.

1 files changed, 185 insertions, 0 deletions

diff --git a/c/src/libchip/ide/ide_ctrl_io.h b/c/src/libchip/ide/ide_ctrl_io.h
new file mode 100644
index 0000000000..46068e46e3
--- /dev/null
+++ b/c/src/libchip/ide/ide_ctrl_io.h
@@ -0,0 +1,185 @@
+/*
+ * ide_ctrl_io.h
+ *
+ * LibChip library IDE controller header file - IO operations defined for 
+ * IDE controllers. 
+ *
+ * Copyright (C) 2002 OKTET Ltd., St.-Petersburg, Russia
+ * Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+#ifndef __IDE_CTRL_IO_H__
+#define __IDE_CTRL_IO_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems/blkdev.h>
+
+/* Command Block Registers */
+#define IDE_REGISTER_DATA               0
+#define IDE_REGISTER_ERROR              1
+#define IDE_REGISTER_FEATURES           IDE_REGISTER_ERROR
+#define IDE_REGISTER_SECTOR_COUNT       2
+#define IDE_REGISTER_SECTOR_NUMBER      3
+#define IDE_REGISTER_LBA0               IDE_REGISTER_SECTOR_NUMBER 
+#define IDE_REGISTER_CYLINDER_LOW       4
+#define IDE_REGISTER_LBA1               IDE_REGISTER_CYLINDER_LOW
+#define IDE_REGISTER_CYLINDER_HIGH      5
+#define IDE_REGISTER_LBA2               IDE_REGISTER_CYLINDER_HIGH
+#define IDE_REGISTER_DEVICE_HEAD        6
+#define IDE_REGISTER_LBA3               IDE_REGISTER_DEVICE_HEAD
+#define IDE_REGISTER_STATUS             7
+#define IDE_REGISTER_COMMAND            IDE_REGISTER_STATUS
+
+/*  Control Block Registers */
+#define IDE_REGISTER_ALTERNATE_STATUS   6
+#define IDE_REGISTER_DEVICE_CONTROL     IDE_REGISTER_ALTERNATE_STATUS
+
+/* offsets used to access  registers */ 
+#define IDE_REGISTER_DEVICE_CONTROL_OFFSET   8
+#define IDE_REGISTER_ALTERNATE_STATUS_OFFSET IDE_REGISTER_DEVICE_CONTROL_OFFSET
+#define IDE_REGISTER_DATA_BYTE               9
+#define IDE_REGISTER_DATA_WORD               10
+
+/*
+ * Registers bits
+ */
+#define IDE_REGISTER_STATUS_BSY          0x80  /* Busy bit */
+#define IDE_REGISTER_STATUS_DRDY         0x40  /* Device ready */
+#define IDE_REGISTER_STATUS_DF           0x20  /* Device fault */
+#define IDE_REGISTER_STATUS_DSC          0x10  /* Device seek complete-- */
+                                               /* obsolete */
+#define IDE_REGISTER_STATUS_DRQ          0x08  /* Data request */
+#define IDE_REGISTER_STATUS_CORR         0x04  /* Corrected data-- */
+                                               /* vendor specific--obsolete */
+#define IDE_REGISTER_STATUS_IDX          0x02  /* Index-- */
+                                                /* vendor specific--obsolete */
+#define IDE_REGISTER_STATUS_ERR          0x01  /* Error */
+
+#define IDE_REGISTER_DEVICE_CONTROL_SRST 0x04  /* Host software reset bit */
+#define IDE_REGISTER_DEVICE_CONTROL_nIEN 0x02  /* Negated interrupt enable */
+
+#define IDE_REGISTER_DEVICE_HEAD_L       0x40  /* LBA mode bit */
+#define IDE_REGISTER_DEVICE_HEAD_DEV     0x10  /* Device0/Device1 bit */
+#define IDE_REGISTER_DEVICE_HEAD_DEV_POS 4     /* Dev0/Dev1 bit position */
+#define IDE_REGISTER_DEVICE_HEAD_HS      0x0f  /* Head/LBA24_27 bits */
+#define IDE_REGISTER_LBA3_L              0x40
+#define IDE_REGISTER_LBA3_DEV            0x10
+#define IDE_REGISTER_LBA3_LBA            0x0f
+
+#define IDE_REGISTER_ERROR_ICRC          0x80  /* Interface CRC error on */
+                                               /* UDMA data transfer */
+#define IDE_REGISTER_ERROR_UNC           0x40  /* Uncorrectable data error */
+#define IDE_REGISTER_ERROR_WP            0x40  /* Write protect */
+#define IDE_REGISTER_ERROR_MC            0x20  /* Media changed */
+#define IDE_REGISTER_ERROR_IDNF          0x10  /* Sector ID not found */
+#define IDE_REGISTER_ERROR_MCR           0x08  /* Media change requested */
+#define IDE_REGISTER_ERROR_ABRT          0x04  /* Aborted command */
+#define IDE_REGISTER_ERROR_NM            0x02  /* No media */
+#define IDE_REGISTER_ERROR_AMNF          0x01  /* Address mark not found */
+                                               /* --obsolette in ATA-4 */
+#define IDE_REGISTER_ERROR_MED           0x01  /* Media error is detected */
+
+/*
+ * ide_controller_read_data_block --
+ *     Read data block via controller's data register
+ *
+ * PARAMETERS:
+ *     minor      - minor number of controller
+ *     block_size - number of bytes to read
+ *     bufs       - set of buffers to store data
+ *     cbuf       - number of current buffer from the set
+ *     pos        - position inside current buffer 'cbuf'
+ *
+ * RETURNS:
+ *     NONE
+ */
+void
+ide_controller_read_data_block(rtems_device_minor_number  minor,
+                               unsigned16                 block_size,
+                               blkdev_sg_buffer          *bufs,
+                               rtems_unsigned32          *cbuf,
+                               rtems_unsigned32          *pos);
+
+/*
+ * ide_controller_write_data_block --
+ *     Write data block via controller's data register
+ *
+ * PARAMETERS:
+ *     minor      - minor number of controller
+ *     block_size - number of bytes to write
+ *     bufs       - set of buffers which store data
+ *     cbuf       - number of current buffer from the set
+ *     pos        - position inside current buffer 'cbuf'
+ *
+ * RETURNS:
+ *     NONE
+ */
+void
+ide_controller_write_data_block(rtems_device_minor_number  minor,
+                                unsigned16                 block_size,
+                                blkdev_sg_buffer          *bufs,
+                               rtems_unsigned32           *cbuf,
+                               rtems_unsigned32           *pos);
+
+/*
+ * ide_controller_read_register --
+ *     Read controller's register
+ *
+ * PARAMETERS:
+ *     minor - minor number of controller
+ *     reg   - register to read
+ *     value - placeholder for result
+ *
+ * RETURNS
+ *     NONE
+ */
+void
+ide_controller_read_register(rtems_device_minor_number  minor,
+                             int                        reg, 
+                             unsigned16                *value);
+
+/*
+ * ide_controller_write_register --
+ *     Write controller's register
+ *
+ * PARAMETERS:
+ *     minor - minor number of controller
+ *     reg   - register to write
+ *     value - value to write
+ *
+ * RETURNS:
+ *     NONE
+ */
+void
+ide_controller_write_register(rtems_device_minor_number minor,
+                              int reg, unsigned16 value);
+
+/*
+ * ide_controller_config_io_speed --
+ *     Set controller's speed of IO operations
+ *
+ * PARAMETERS:
+ *     minor         - minor number of controller
+ *     modes_avaible - speeds available
+ *
+ * RETURNS:
+ *     RTEMS_SUCCESSFUL on success, or error code if
+ *     error occured
+ */
+rtems_status_code 
+ide_controller_config_io_speed(int minor, unsigned8 modes_avaible);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* __IDE_CTRL_IO_H__ */