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#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_device.h>
#include "usb.h"
#include "scsiglue.h"
#include "transport.h"
#include "init.h"
/*
* ENE_InitMedia():
*/
int ENE_InitMedia(struct us_data *us)
{
int result;
u8 MiscReg03 = 0;
dev_info(&us->pusb_dev->dev, "--- Init Media ---\n");
result = ene_read_byte(us, REG_CARD_STATUS, &MiscReg03);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev, "Failed to read register\n");
return USB_STOR_TRANSPORT_ERROR;
}
dev_info(&us->pusb_dev->dev, "MiscReg03 = %x\n", MiscReg03);
if (MiscReg03 & 0x02) {
if (!us->SM_Status.Ready && !us->MS_Status.Ready) {
result = ENE_SMInit(us);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
}
}
return result;
}
/*
* ene_read_byte() :
*/
int ene_read_byte(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] = (u8)(index>>8);
bcb->CDB[3] = (u8)index;
result = ENE_SendScsiCmd(us, FDIR_READ, buf, 0);
return result;
}
/*
*ENE_SMInit()
*/
int ENE_SMInit(struct us_data *us)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
u8 buf[0x200];
dev_dbg(&us->pusb_dev->dev, "transport --- ENE_SMInit\n");
result = ENE_LoadBinCode(us, SM_INIT_PATTERN);
if (result != USB_STOR_XFER_GOOD) {
dev_info(&us->pusb_dev->dev,
"Failed to load SmartMedia init code\n: result= %x\n",
result);
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;
bcb->CDB[1] = 0x01;
result = ENE_SendScsiCmd(us, FDIR_READ, &buf, 0);
if (result != USB_STOR_XFER_GOOD) {
dev_err(&us->pusb_dev->dev,
"Failed to load SmartMedia init code: result = %x\n",
result);
return USB_STOR_TRANSPORT_ERROR;
}
us->SM_Status = *(struct keucr_sm_status *)&buf[0];
us->SM_DeviceID = buf[1];
us->SM_CardID = buf[2];
if (us->SM_Status.Insert && us->SM_Status.Ready) {
dev_info(&us->pusb_dev->dev, "Insert = %x\n",
us->SM_Status.Insert);
dev_info(&us->pusb_dev->dev, "Ready = %x\n",
us->SM_Status.Ready);
dev_info(&us->pusb_dev->dev, "WtP = %x\n",
us->SM_Status.WtP);
dev_info(&us->pusb_dev->dev, "DeviceID = %x\n",
us->SM_DeviceID);
dev_info(&us->pusb_dev->dev, "CardID = %x\n",
us->SM_CardID);
MediaChange = 1;
Check_D_MediaFmt(us);
} else {
dev_err(&us->pusb_dev->dev,
"SmartMedia Card Not Ready --- %x\n", buf[0]);
return USB_STOR_TRANSPORT_ERROR;
}
return USB_STOR_TRANSPORT_GOOD;
}
/*
* ENE_LoadBinCode()
*/
int ENE_LoadBinCode(struct us_data *us, u8 flag)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
/* void *buf; */
u8 *buf;
/* dev_info(&us->pusb_dev->dev, "transport --- ENE_LoadBinCode\n"); */
if (us->BIN_FLAG == flag)
return USB_STOR_TRANSPORT_GOOD;
buf = kmalloc(0x800, GFP_KERNEL);
if (buf == NULL)
return USB_STOR_TRANSPORT_ERROR;
switch (flag) {
/* For SS */
case SM_INIT_PATTERN:
dev_dbg(&us->pusb_dev->dev, "SM_INIT_PATTERN\n");
memcpy(buf, SM_Init, 0x800);
break;
case SM_RW_PATTERN:
dev_dbg(&us->pusb_dev->dev, "SM_RW_PATTERN\n");
memcpy(buf, SM_Rdwr, 0x800);
break;
}
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = 0x800;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xEF;
result = ENE_SendScsiCmd(us, FDIR_WRITE, buf, 0);
kfree(buf);
us->BIN_FLAG = flag;
return result;
}
/*
* ENE_SendScsiCmd():
*/
int ENE_SendScsiCmd(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 transfer_length = bcb->DataTransferLength,
cswlen = 0, partial = 0;
unsigned int residue;
/* dev_dbg(&us->pusb_dev->dev, "transport --- ENE_SendScsiCmd\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) {
dev_err(&us->pusb_dev->dev,
"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) {
dev_err(&us->pusb_dev->dev, "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) {
dev_warn(&us->pusb_dev->dev,
"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 */
dev_warn(&us->pusb_dev->dev,
"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)
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;
}
/*
* ENE_Read_Data()
*/
int ENE_Read_Data(struct us_data *us, void *buf, unsigned int length)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
/* dev_dbg(&us->pusb_dev->dev, "transport --- ENE_Read_Data\n"); */
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags = 0x80;
bcb->CDB[0] = 0xED;
bcb->CDB[2] = 0xFF;
bcb->CDB[3] = 0x81;
/* 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)
return USB_STOR_TRANSPORT_ERROR;
/* R/W data */
result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
buf, length, NULL);
if (result != USB_STOR_XFER_GOOD)
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, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
/*
* ENE_Write_Data():
*/
int ENE_Write_Data(struct us_data *us, void *buf, unsigned int length)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
int result;
/* printk("transport --- ENE_Write_Data\n"); */
/* set up the command wrapper */
memset(bcb, 0, sizeof(struct bulk_cb_wrap));
bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
bcb->DataTransferLength = length;
bcb->Flags = 0x00;
bcb->CDB[0] = 0xEE;
bcb->CDB[2] = 0xFF;
bcb->CDB[3] = 0x81;
/* 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)
return USB_STOR_TRANSPORT_ERROR;
/* R/W data */
result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
buf, length, NULL);
if (result != USB_STOR_XFER_GOOD)
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, NULL);
if (result != USB_STOR_XFER_GOOD)
return USB_STOR_TRANSPORT_ERROR;
if (bcs->Status != US_BULK_STAT_OK)
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
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