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Work on SCSI MMC layer. Some things may be broken.

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This commit is contained in:
rocky
2004-07-22 09:52:17 +00:00
parent 4a7b48d568
commit 3263eeefae
9 changed files with 395 additions and 267 deletions
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45
lib/scsi_mmc.c
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@@ -1,6 +1,6 @@
/* Common MMC routines.
$Id: scsi_mmc.c,v 1.6 2004/07/19 01:13:32 rocky Exp $
$Id: scsi_mmc.c,v 1.7 2004/07/22 09:52:17 rocky Exp $
Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
@@ -25,6 +25,7 @@
#include <cdio/cdio.h>
#include <cdio/scsi_mmc.h>
#include "cdio_private.h"
/*!
On input a MODE_SENSE command was issued and we have the results
@@ -32,7 +33,7 @@
capabilities.
*/
void
cdio_get_drive_cap_mmc(const uint8_t *p,
scsi_mmc_get_drive_cap(const uint8_t *p,
/*out*/ cdio_drive_read_cap_t *p_read_cap,
/*out*/ cdio_drive_write_cap_t *p_write_cap,
/*out*/ cdio_drive_misc_cap_t *p_misc_cap)
@@ -59,3 +60,43 @@ cdio_get_drive_cap_mmc(const uint8_t *p,
if (p[6] >> 5 != 0)
*p_misc_cap |= CDIO_DRIVE_CAP_MISC_CLOSE_TRAY;
}
/*!
Return the number of length in bytes of the Command Descriptor
buffer (CDB) for a given SCSI MMC command. The length will be
either 6, 10, or 12.
*/
uint8_t
scsi_mmc_get_cmd_len(uint8_t scsi_cmd)
{
static const uint8_t scsi_cdblen[8] = {6, 10, 10, 12, 12, 12, 10, 10};
return scsi_cdblen[((scsi_cmd >> 5) & 7)];
}
/*!
Run a SCSI MMC command.
cdio CD structure set by cdio_open().
i_timeout time in milliseconds we will wait for the command
to complete. If this value is -1, use the default
time-out value.
buf Buffer for data, both sending and receiving
len Size of buffer
e_direction direction the transfer is to go
cdb CDB bytes. All values that are needed should be set on
input. We'll figure out what the right CDB length should be.
We return 0 if command completed successfully and 1 if not.
*/
int
scsi_mmc_run_cmd( const CdIo *cdio, int i_timeout, const scsi_mmc_cdb_t *p_cdb,
scsi_mmc_direction_t e_direction, unsigned int i_buf,
/*in/out*/ void *p_buf )
{
if (cdio && cdio->op.run_scsi_mmc_cmd) {
return cdio->op.run_scsi_mmc_cmd(cdio, i_timeout,
scsi_mmc_get_cmd_len(p_cdb->field[0]),
p_cdb, e_direction, i_buf, p_buf);
} else
return 1;
}