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USB Storage: add rio karma eject support

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This changeset from Keith Bennett (via Bob Copeland) moves the Karma
initializer to its own file and adds trapping of the START_STOP command to
enable eject of the device.

Signed-off-by: Keith Bennett <keith@mcs.st-and.ac.uk>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Matthew Dharm
2006-08-13 17:30:14 -07:00
committed by Greg Kroah-Hartman
parent c07045412f
commit dfe0d3ba20
9 changed files with 190 additions and 75 deletions
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73
drivers/usb/storage/initializers.c
View File

@ -45,12 +45,6 @@
#include "debug.h"
#include "transport.h"
#define RIO_MSC 0x08
#define RIOP_INIT "RIOP\x00\x01\x08"
#define RIOP_INIT_LEN 7
#define RIO_SEND_LEN 40
#define RIO_RECV_LEN 0x200
/* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
* mode */
int usb_stor_euscsi_init(struct us_data *us)
@ -97,70 +91,3 @@ int usb_stor_ucr61s2b_init(struct us_data *us)
return (res ? -1 : 0);
}
/* Place the Rio Karma into mass storage mode.
*
* The initialization begins by sending 40 bytes starting
* RIOP\x00\x01\x08\x00, which the device will ack with a 512-byte
* packet with the high four bits set and everything else null.
*
* Next, we send RIOP\x80\x00\x08\x00. Each time, a 512 byte response
* must be read, but we must loop until byte 5 in the response is 0x08,
* indicating success. */
int rio_karma_init(struct us_data *us)
{
int result, partial;
char *recv;
unsigned long timeout;
// us->iobuf is big enough to hold cmd but not receive
if (!(recv = kmalloc(RIO_RECV_LEN, GFP_KERNEL)))
goto die_nomem;
US_DEBUGP("Initializing Karma...\n");
memset(us->iobuf, 0, RIO_SEND_LEN);
memcpy(us->iobuf, RIOP_INIT, RIOP_INIT_LEN);
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
us->iobuf, RIO_SEND_LEN, &partial);
if (result != USB_STOR_XFER_GOOD)
goto die;
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
recv, RIO_RECV_LEN, &partial);
if (result != USB_STOR_XFER_GOOD)
goto die;
us->iobuf[4] = 0x80;
us->iobuf[5] = 0;
timeout = jiffies + msecs_to_jiffies(3000);
for (;;) {
US_DEBUGP("Sending init command\n");
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
us->iobuf, RIO_SEND_LEN, &partial);
if (result != USB_STOR_XFER_GOOD)
goto die;
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
recv, RIO_RECV_LEN, &partial);
if (result != USB_STOR_XFER_GOOD)
goto die;
if (recv[5] == RIO_MSC)
break;
if (time_after(jiffies, timeout))
goto die;
msleep(10);
}
US_DEBUGP("Karma initialized.\n");
kfree(recv);
return 0;
die:
kfree(recv);
die_nomem:
US_DEBUGP("Could not initialize karma.\n");
return USB_STOR_TRANSPORT_FAILED;
}