Release 4.15 drivers/usb/storage/initializers.c
// SPDX-License-Identifier: GPL-2.0+
/*
* Special Initializers for certain USB Mass Storage devices
*
* Current development and maintenance by:
* (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
*
* This driver is based on the 'USB Mass Storage Class' document. This
* describes in detail the protocol used to communicate with such
* devices. Clearly, the designers had SCSI and ATAPI commands in
* mind when they created this document. The commands are all very
* similar to commands in the SCSI-II and ATAPI specifications.
*
* It is important to note that in a number of cases this class
* exhibits class-specific exemptions from the USB specification.
* Notably the usage of NAK, STALL and ACK differs from the norm, in
* that they are used to communicate wait, failed and OK on commands.
*
* Also, for certain devices, the interrupt endpoint is used to convey
* status of a command.
*
* Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
* information about this driver.
*/
#include <linux/errno.h>
#include "usb.h"
#include "initializers.h"
#include "debug.h"
#include "transport.h"
/*
* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
* mode
*/
int usb_stor_euscsi_init(struct us_data *us)
{
int result;
usb_stor_dbg(us, "Attempting to init eUSCSI bridge...\n");
result = usb_stor_control_msg(us, us->send_ctrl_pipe,
0x0C, USB_RECIP_INTERFACE | USB_TYPE_VENDOR,
0x01, 0x0, NULL, 0x0, 5 * HZ);
usb_stor_dbg(us, "-- result is %d\n", result);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 48 | 78.69% | 1 | 16.67% |
| Joe Perches | 6 | 9.84% | 1 | 16.67% |
| Mark Knibbs | 5 | 8.20% | 2 | 33.33% |
| Matthew Dharm | 2 | 3.28% | 2 | 33.33% |
| Total | 61 | 100.00% | 6 | 100.00% |
/*
* This function is required to activate all four slots on the UCR-61S2B
* flash reader
*/
int usb_stor_ucr61s2b_init(struct us_data *us)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap*) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap*) us->iobuf;
int res;
unsigned int partial;
static char init_string[] = "\xec\x0a\x06\x00$PCCHIPS";
usb_stor_dbg(us, "Sending UCR-61S2B initialization packet...\n");
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->Tag = 0;
bcb->DataTransferLength = cpu_to_le32(0);
bcb->Flags = bcb->Lun = 0;
bcb->Length = sizeof(init_string) - 1;
memset(bcb->CDB, 0, sizeof(bcb->CDB));
memcpy(bcb->CDB, init_string, sizeof(init_string) - 1);
res = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, bcb,
US_BULK_CB_WRAP_LEN, &partial);
if (res)
return -EIO;
usb_stor_dbg(us, "Getting status packet...\n");
res = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
US_BULK_CS_WRAP_LEN, &partial);
if (res)
return -EIO;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kevin Cernekee | 144 | 72.73% | 1 | 16.67% |
| Matthew Dharm | 22 | 11.11% | 1 | 16.67% |
| Alan Stern | 14 | 7.07% | 1 | 16.67% |
| Pete Zaitcev | 9 | 4.55% | 1 | 16.67% |
| Joe Perches | 6 | 3.03% | 1 | 16.67% |
| Marcin Ślusarz | 3 | 1.52% | 1 | 16.67% |
| Total | 198 | 100.00% | 6 | 100.00% |
/* This places the HUAWEI E220 devices in multi-port mode */
int usb_stor_huawei_e220_init(struct us_data *us)
{
int result;
result = usb_stor_control_msg(us, us->send_ctrl_pipe,
USB_REQ_SET_FEATURE,
USB_TYPE_STANDARD | USB_RECIP_DEVICE,
0x01, 0x0, NULL, 0x0, 1 * HZ);
usb_stor_dbg(us, "Huawei mode set result is %d\n", result);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Johann Wilhelm | 44 | 81.48% | 1 | 16.67% |
| Mark Knibbs | 3 | 5.56% | 1 | 16.67% |
| Joe Perches | 3 | 5.56% | 1 | 16.67% |
| fangxiaozhi | 2 | 3.70% | 1 | 16.67% |
| Pete Zaitcev | 1 | 1.85% | 1 | 16.67% |
| Björn Mork | 1 | 1.85% | 1 | 16.67% |
| Total | 54 | 100.00% | 6 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kevin Cernekee | 147 | 44.14% | 1 | 5.26% |
| Linus Torvalds (pre-git) | 54 | 16.22% | 1 | 5.26% |
| Johann Wilhelm | 44 | 13.21% | 1 | 5.26% |
| Matthew Dharm | 27 | 8.11% | 4 | 21.05% |
| Joe Perches | 15 | 4.50% | 1 | 5.26% |
| Alan Stern | 14 | 4.20% | 1 | 5.26% |
| Pete Zaitcev | 10 | 3.00% | 1 | 5.26% |
| Mark Knibbs | 8 | 2.40% | 2 | 10.53% |
| Marcin Ślusarz | 3 | 0.90% | 1 | 5.26% |
| Linus Torvalds | 3 | 0.90% | 1 | 5.26% |
| fangxiaozhi | 2 | 0.60% | 1 | 5.26% |
| Greg Kroah-Hartman | 2 | 0.60% | 2 | 10.53% |
| Felipe Balbi | 2 | 0.60% | 1 | 5.26% |
| Björn Mork | 2 | 0.60% | 1 | 5.26% |
| Total | 333 | 100.00% | 19 | 100.00% |
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