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tmp_suning_uos_patched/drivers/usb/storage/ene_ub6250.c
Dan Carpenter 8b0fb6f872 USB: ene_ub6250: fix memory leak in ene_load_bincode() 
"buf" gets allocated twice in a row.  It's the second allocation which
is correct.  The first one should be removed.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: huajun li <huajun.li.lee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-03-11 14:26:08 -08:00

804 lines
21 KiB
C
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/*
*
* This program 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 2, or (at your option) any
* later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/jiffies.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <linux/firmware.h>
#include "usb.h"
#include "transport.h"
#include "protocol.h"
#include "debug.h"
MODULE_DESCRIPTION("Driver for ENE UB6250 reader");
MODULE_LICENSE("GPL");
/*
* The table of devices
*/
#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
vendorName, productName, useProtocol, useTransport, \
initFunction, flags) \
{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
.driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
struct usb_device_id ene_ub6250_usb_ids[] = {
# include "unusual_ene_ub6250.h"
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, ene_ub6250_usb_ids);
#undef UNUSUAL_DEV
/*
* The flags table
*/
#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
vendor_name, product_name, use_protocol, use_transport, \
init_function, Flags) \
{ \
.vendorName = vendor_name, \
.productName = product_name, \
.useProtocol = use_protocol, \
.useTransport = use_transport, \
.initFunction = init_function, \
}
static struct us_unusual_dev ene_ub6250_unusual_dev_list[] = {
# include "unusual_ene_ub6250.h"
{ } /* Terminating entry */
};
#undef UNUSUAL_DEV
/* ENE bin code len */
#define ENE_BIN_CODE_LEN 0x800
/* EnE HW Register */
#define REG_CARD_STATUS 0xFF83
#define REG_HW_TRAP1 0xFF89
/* SRB Status */
#define SS_SUCCESS 0x00 /* No Sense */
#define SS_NOT_READY 0x02
#define SS_MEDIUM_ERR 0x03
#define SS_HW_ERR 0x04
#define SS_ILLEGAL_REQUEST 0x05
#define SS_UNIT_ATTENTION 0x06
/* ENE Load FW Pattern */
#define SD_INIT1_PATTERN 1
#define SD_INIT2_PATTERN 2
#define SD_RW_PATTERN 3
#define MS_INIT_PATTERN 4
#define MSP_RW_PATTERN 5
#define MS_RW_PATTERN 6
#define SM_INIT_PATTERN 7
#define SM_RW_PATTERN 8
#define FDIR_WRITE 0
#define FDIR_READ 1
struct SD_STATUS {
u8 Insert:1;
u8 Ready:1;
u8 MediaChange:1;
u8 IsMMC:1;
u8 HiCapacity:1;
u8 HiSpeed:1;
u8 WtP:1;
u8 Reserved:1;
};
struct MS_STATUS {
u8 Insert:1;
u8 Ready:1;
u8 MediaChange:1;
u8 IsMSPro:1;
u8 IsMSPHG:1;
u8 Reserved1:1;
u8 WtP:1;
u8 Reserved2:1;
};
struct SM_STATUS {
u8 Insert:1;
u8 Ready:1;
u8 MediaChange:1;
u8 Reserved:3;
u8 WtP:1;
u8 IsMS:1;
};
/* SD Block Length */
/* 2^9 = 512 Bytes, The HW maximum read/write data length */
#define SD_BLOCK_LEN 9
struct ene_ub6250_info {
/* for 6250 code */
struct SD_STATUS SD_Status;
struct MS_STATUS MS_Status;
struct SM_STATUS SM_Status;
/* ----- SD Control Data ---------------- */
/*SD_REGISTER SD_Regs; */
u16 SD_Block_Mult;
u8 SD_READ_BL_LEN;
u16 SD_C_SIZE;
u8 SD_C_SIZE_MULT;
/* SD/MMC New spec. */
u8 SD_SPEC_VER;
u8 SD_CSD_VER;
u8 SD20_HIGH_CAPACITY;
u32 HC_C_SIZE;
u8 MMC_SPEC_VER;
u8 MMC_BusWidth;
u8 MMC_HIGH_CAPACITY;
/*----- MS Control Data ---------------- */
bool MS_SWWP;
u32 MSP_TotalBlock;
/*MS_LibControl MS_Lib;*/
bool MS_IsRWPage;
u16 MS_Model;
/*----- SM Control Data ---------------- */
u8 SM_DeviceID;
u8 SM_CardID;
unsigned char *testbuf;
u8 BIN_FLAG;
u32 bl_num;
int SrbStatus;
/*------Power Managerment ---------------*/
bool Power_IsResum;
};
static int ene_sd_init(struct us_data *us);
static int ene_load_bincode(struct us_data *us, unsigned char flag);
static void ene_ub6250_info_destructor(void *extra)
{
if (!extra)
return;
}
static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
unsigned int residue;
unsigned int cswlen = 0, partial = 0;
unsigned int transfer_length = bcb->DataTransferLength;
/* US_DEBUGP("transport --- ene_send_scsi_cmd\n"); */
/* send cmd to out endpoint */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
bcb, US_BULK_CB_WRAP_LEN, NULL);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("send cmd to out endpoint fail ---\n");
return USB_STOR_TRANSPORT_ERROR;
}
if (buf) {
unsigned int pipe = fDir;
if (fDir == FDIR_READ)
pipe = us->recv_bulk_pipe;
else
pipe = us->send_bulk_pipe;
/* Bulk */
if (use_sg) {
result = usb_stor_bulk_srb(us, pipe, us->srb);
} else {
result = usb_stor_bulk_transfer_sg(us, pipe, buf,
transfer_length, 0, &partial);
}
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("data transfer fail ---\n");
return USB_STOR_TRANSPORT_ERROR;
}
}
/* Get CSW for device status */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
US_BULK_CS_WRAP_LEN, &cswlen);
if (result == USB_STOR_XFER_SHORT && cswlen == 0) {
US_DEBUGP("Received 0-length CSW; retrying...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
bcs, US_BULK_CS_WRAP_LEN, &cswlen);
}
if (result == USB_STOR_XFER_STALLED) {
/* get the status again */
US_DEBUGP("Attempting to get CSW (2nd try)...\n");
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
bcs, US_BULK_CS_WRAP_LEN, NULL);
}
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
/* check bulk status */
residue = le32_to_cpu(bcs->Residue);
/* try to compute the actual residue, based on how much data
* was really transferred and what the device tells us */
if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) {
residue = min(residue, transfer_length);
if (us->srb != NULL)
scsi_set_resid(us->srb, max(scsi_get_resid(us->srb),
(int)residue));
}
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
static int sd_scsi_test_unit_ready(struct us_data *us, struct scsi_cmnd *srb)
{
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
if (info->SD_Status.Insert && info->SD_Status.Ready)
return USB_STOR_TRANSPORT_GOOD;
else {
ene_sd_init(us);
return USB_STOR_TRANSPORT_GOOD;
}
return USB_STOR_TRANSPORT_GOOD;
}
static int sd_scsi_inquiry(struct us_data *us, struct scsi_cmnd *srb)
{
unsigned char data_ptr[36] = {
0x00, 0x80, 0x02, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x55,
0x53, 0x42, 0x32, 0x2E, 0x30, 0x20, 0x20, 0x43, 0x61,
0x72, 0x64, 0x52, 0x65, 0x61, 0x64, 0x65, 0x72, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x30, 0x31, 0x30, 0x30 };
usb_stor_set_xfer_buf(data_ptr, 36, srb);
return USB_STOR_TRANSPORT_GOOD;
}
static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
{
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
unsigned char mediaNoWP[12] = {
0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
unsigned char mediaWP[12] = {
0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
if (info->SD_Status.WtP)
usb_stor_set_xfer_buf(mediaWP, 12, srb);
else
usb_stor_set_xfer_buf(mediaNoWP, 12, srb);
return USB_STOR_TRANSPORT_GOOD;
}
static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
{
u32 bl_num;
u16 bl_len;
unsigned int offset = 0;
unsigned char buf[8];
struct scatterlist *sg = NULL;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
US_DEBUGP("sd_scsi_read_capacity\n");
if (info->SD_Status.HiCapacity) {
bl_len = 0x200;
if (info->SD_Status.IsMMC)
bl_num = info->HC_C_SIZE-1;
else
bl_num = (info->HC_C_SIZE + 1) * 1024 - 1;
} else {
bl_len = 1<<(info->SD_READ_BL_LEN);
bl_num = info->SD_Block_Mult * (info->SD_C_SIZE + 1)
* (1 << (info->SD_C_SIZE_MULT + 2)) - 1;
}
info->bl_num = bl_num;
US_DEBUGP("bl_len = %x\n", bl_len);
US_DEBUGP("bl_num = %x\n", bl_num);
/*srb->request_bufflen = 8; */
buf[0] = (bl_num >> 24) & 0xff;
buf[1] = (bl_num >> 16) & 0xff;
buf[2] = (bl_num >> 8) & 0xff;
buf[3] = (bl_num >> 0) & 0xff;
buf[4] = (bl_len >> 24) & 0xff;
buf[5] = (bl_len >> 16) & 0xff;
buf[6] = (bl_len >> 8) & 0xff;
buf[7] = (bl_len >> 0) & 0xff;
usb_stor_access_xfer_buf(buf, 8, srb, &sg, &offset, TO_XFER_BUF);
return USB_STOR_TRANSPORT_GOOD;
}
static int sd_scsi_read(struct us_data *us, struct scsi_cmnd *srb)
{
int result;
unsigned char *cdb = srb->cmnd;
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
u32 bnByte = bn * 0x200;
u32 blenByte = blen * 0x200;
if (bn > info->bl_num)
return USB_STOR_TRANSPORT_ERROR;
result = ene_load_bincode(us, SD_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Load SD RW pattern Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
if (info->SD_Status.HiCapacity)
bnByte = bn;
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xF1;
bcb->CDB[5] = (unsigned char)(bnByte);
bcb->CDB[4] = (unsigned char)(bnByte>>8);
bcb->CDB[3] = (unsigned char)(bnByte>>16);
bcb->CDB[2] = (unsigned char)(bnByte>>24);
result = ene_send_scsi_cmd(us, FDIR_READ, scsi_sglist(srb), 1);
return result;
}
static int sd_scsi_write(struct us_data *us, struct scsi_cmnd *srb)
{
int result;
unsigned char *cdb = srb->cmnd;
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
u32 bnByte = bn * 0x200;
u32 blenByte = blen * 0x200;
if (bn > info->bl_num)
return USB_STOR_TRANSPORT_ERROR;
result = ene_load_bincode(us, SD_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Load SD RW pattern Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
if (info->SD_Status.HiCapacity)
bnByte = bn;
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = blenByte;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xF0;
bcb->CDB[5] = (unsigned char)(bnByte);
bcb->CDB[4] = (unsigned char)(bnByte>>8);
bcb->CDB[3] = (unsigned char)(bnByte>>16);
bcb->CDB[2] = (unsigned char)(bnByte>>24);
result = ene_send_scsi_cmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
return result;
}
static int ene_get_card_type(struct us_data *us, u16 index, void *buf)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x01;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xED;
bcb->CDB[2] = (unsigned char)(index>>8);
bcb->CDB[3] = (unsigned char)index;
result = ene_send_scsi_cmd(us, FDIR_READ, buf, 0);
return result;
}
static int ene_get_card_status(struct us_data *us, u8 *buf)
{
u16 tmpreg;
u32 reg4b;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
/*US_DEBUGP("transport --- ENE_ReadSDReg\n");*/
reg4b = *(u32 *)&buf[0x18];
info->SD_READ_BL_LEN = (u8)((reg4b >> 8) & 0x0f);
tmpreg = (u16) reg4b;
reg4b = *(u32 *)(&buf[0x14]);
if (info->SD_Status.HiCapacity && !info->SD_Status.IsMMC)
info->HC_C_SIZE = (reg4b >> 8) & 0x3fffff;
info->SD_C_SIZE = ((tmpreg & 0x03) << 10) | (u16)(reg4b >> 22);
info->SD_C_SIZE_MULT = (u8)(reg4b >> 7) & 0x07;
if (info->SD_Status.HiCapacity && info->SD_Status.IsMMC)
info->HC_C_SIZE = *(u32 *)(&buf[0x100]);
if (info->SD_READ_BL_LEN > SD_BLOCK_LEN) {
info->SD_Block_Mult = 1 << (info->SD_READ_BL_LEN-SD_BLOCK_LEN);
info->SD_READ_BL_LEN = SD_BLOCK_LEN;
} else {
info->SD_Block_Mult = 1;
}
return USB_STOR_TRANSPORT_GOOD;
}
static int ene_load_bincode(struct us_data *us, unsigned char flag)
{
int err;
char *fw_name = NULL;
unsigned char *buf = NULL;
const struct firmware *sd_fw = NULL;
int result = USB_STOR_TRANSPORT_ERROR;
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
if (info->BIN_FLAG == flag)
return USB_STOR_TRANSPORT_GOOD;
switch (flag) {
/* For SD */
case SD_INIT1_PATTERN:
US_DEBUGP("SD_INIT1_PATTERN\n");
fw_name = "ene-ub6250/sd_init1.bin";
break;
case SD_INIT2_PATTERN:
US_DEBUGP("SD_INIT2_PATTERN\n");
fw_name = "ene-ub6250/sd_init2.bin";
break;
case SD_RW_PATTERN:
US_DEBUGP("SD_RDWR_PATTERN\n");
fw_name = "ene-ub6250/sd_rdwr.bin";
break;
default:
US_DEBUGP("----------- Unknown PATTERN ----------\n");
goto nofw;
}
err = request_firmware(&sd_fw, fw_name, &us->pusb_dev->dev);
if (err) {
US_DEBUGP("load firmware %s failed\n", fw_name);
goto nofw;
}
buf = kmalloc(sd_fw->size, GFP_KERNEL);
if (buf == NULL) {
US_DEBUGP("Malloc memory for fireware failed!\n");
goto nofw;
}
memcpy(buf, sd_fw->data, sd_fw->size);
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = sd_fw->size;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xEF;
result = ene_send_scsi_cmd(us, FDIR_WRITE, buf, 0);
info->BIN_FLAG = flag;
kfree(buf);
nofw:
if (sd_fw != NULL) {
release_firmware(sd_fw);
sd_fw = NULL;
}
return result;
}
static int ene_sd_init(struct us_data *us)
{
int result;
u8 buf[0x200];
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
US_DEBUGP("transport --- ENE_SDInit\n");
/* SD Init Part-1 */
result = ene_load_bincode(us, SD_INIT1_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Load SD Init Code Part-1 Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->Flags = 0x80;
bcb->CDB[0] = 0xF2;
result = ene_send_scsi_cmd(us, FDIR_READ, NULL, 0);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Exection SD Init Code Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
/* SD Init Part-2 */
result = ene_load_bincode(us, SD_INIT2_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Load SD Init Code Part-2 Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x200;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xF1;
result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
if (result != USB_STOR_XFER_GOOD) {
US_DEBUGP("Exection SD Init Code Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
info->SD_Status = *(struct SD_STATUS *)&buf[0];
if (info->SD_Status.Insert && info->SD_Status.Ready) {
ene_get_card_status(us, (unsigned char *)&buf);
US_DEBUGP("Insert = %x\n", info->SD_Status.Insert);
US_DEBUGP("Ready = %x\n", info->SD_Status.Ready);
US_DEBUGP("IsMMC = %x\n", info->SD_Status.IsMMC);
US_DEBUGP("HiCapacity = %x\n", info->SD_Status.HiCapacity);
US_DEBUGP("HiSpeed = %x\n", info->SD_Status.HiSpeed);
US_DEBUGP("WtP = %x\n", info->SD_Status.WtP);
} else {
US_DEBUGP("SD Card Not Ready --- %x\n", buf[0]);
return USB_STOR_TRANSPORT_ERROR;
}
return USB_STOR_TRANSPORT_GOOD;
}
static int ene_init(struct us_data *us)
{
int result;
u8 misc_reg03 = 0;
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
if (misc_reg03 & 0x01) {
if (!info->SD_Status.Ready) {
result = ene_sd_init(us);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
}
}
return result;
}
/*----- sd_scsi_irp() ---------*/
static int sd_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
{
int result;
struct ene_ub6250_info *info = (struct ene_ub6250_info *)us->extra;
info->SrbStatus = SS_SUCCESS;
switch (srb->cmnd[0]) {
case TEST_UNIT_READY:
result = sd_scsi_test_unit_ready(us, srb);
break; /* 0x00 */
case INQUIRY:
result = sd_scsi_inquiry(us, srb);
break; /* 0x12 */
case MODE_SENSE:
result = sd_scsi_mode_sense(us, srb);
break; /* 0x1A */
/*
case START_STOP:
result = SD_SCSI_Start_Stop(us, srb);
break; //0x1B
*/
case READ_CAPACITY:
result = sd_scsi_read_capacity(us, srb);
break; /* 0x25 */
case READ_10:
result = sd_scsi_read(us, srb);
break; /* 0x28 */
case WRITE_10:
result = sd_scsi_write(us, srb);
break; /* 0x2A */
default:
info->SrbStatus = SS_ILLEGAL_REQUEST;
result = USB_STOR_TRANSPORT_FAILED;
break;
}
return result;
}
static int ene_transport(struct scsi_cmnd *srb, struct us_data *us)
{
int result = 0;
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
/*US_DEBUG(usb_stor_show_command(srb)); */
scsi_set_resid(srb, 0);
if (unlikely(!info->SD_Status.Ready))
result = ene_init(us);
else
result = sd_scsi_irp(us, srb);
return 0;
}
static int ene_ub6250_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int result;
u8 misc_reg03 = 0;
struct us_data *us;
result = usb_stor_probe1(&us, intf, id,
(id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list);
if (result)
return result;
/* FIXME: where should the code alloc extra buf ? */
if (!us->extra) {
us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
if (!us->extra)
return -ENOMEM;
us->extra_destructor = ene_ub6250_info_destructor;
}
us->transport_name = "ene_ub6250";
us->transport = ene_transport;
us->max_lun = 0;
result = usb_stor_probe2(us);
if (result)
return result;
/* probe card type */
result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
if (result != USB_STOR_XFER_GOOD) {
usb_stor_disconnect(intf);
return USB_STOR_TRANSPORT_ERROR;
}
if (!(misc_reg03 & 0x01)) {
result = -ENODEV;
printk(KERN_NOTICE "ums_eneub6250: The driver only supports SD\
card. To use SM/MS card, please build driver/stagging/keucr\n");
usb_stor_disconnect(intf);
}
return result;
}
#ifdef CONFIG_PM
static int ene_ub6250_resume(struct usb_interface *iface)
{
u8 tmp = 0;
struct us_data *us = usb_get_intfdata(iface);
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
mutex_lock(&us->dev_mutex);
US_DEBUGP("%s\n", __func__);
if (us->suspend_resume_hook)
(us->suspend_resume_hook)(us, US_RESUME);
mutex_unlock(&us->dev_mutex);
info->Power_IsResum = true;
/*info->SD_Status.Ready = 0; */
info->SD_Status = *(struct SD_STATUS *)&tmp;
info->MS_Status = *(struct MS_STATUS *)&tmp;
info->SM_Status = *(struct SM_STATUS *)&tmp;
return 0;
}
static int ene_ub6250_reset_resume(struct usb_interface *iface)
{
u8 tmp = 0;
struct us_data *us = usb_get_intfdata(iface);
struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
US_DEBUGP("%s\n", __func__);
/* Report the reset to the SCSI core */
usb_stor_reset_resume(iface);
/* FIXME: Notify the subdrivers that they need to reinitialize
* the device */
info->Power_IsResum = true;
/*info->SD_Status.Ready = 0; */
info->SD_Status = *(struct SD_STATUS *)&tmp;
info->MS_Status = *(struct MS_STATUS *)&tmp;
info->SM_Status = *(struct SM_STATUS *)&tmp;
return 0;
}
#else
#define ene_ub6250_resume NULL
#define ene_ub6250_reset_resume NULL
#endif
static struct usb_driver ene_ub6250_driver = {
.name = "ums_eneub6250",
.probe = ene_ub6250_probe,
.disconnect = usb_stor_disconnect,
.suspend = usb_stor_suspend,
.resume = ene_ub6250_resume,
.reset_resume = ene_ub6250_reset_resume,
.pre_reset = usb_stor_pre_reset,
.post_reset = usb_stor_post_reset,
.id_table = ene_ub6250_usb_ids,
.soft_unbind = 1,
};
static int __init ene_ub6250_init(void)
{
return usb_register(&ene_ub6250_driver);
}
static void __exit ene_ub6250_exit(void)
{
usb_deregister(&ene_ub6250_driver);
}
module_init(ene_ub6250_init);
module_exit(ene_ub6250_exit);
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