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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | #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 "smil.h"
static int SM_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb);
static int SM_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb);
static int SM_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb);
static int SM_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb);
static int SM_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb);
static int SM_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb);
/* ----- SM_SCSIIrp() -------------------------------------------------- */
int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
{
int result;
us->SrbStatus = SS_SUCCESS;
switch (srb->cmnd[0]) {
case TEST_UNIT_READY:
result = SM_SCSI_Test_Unit_Ready(us, srb);
break; /* 0x00 */
case INQUIRY:
result = SM_SCSI_Inquiry(us, srb);
break; /* 0x12 */
case MODE_SENSE:
result = SM_SCSI_Mode_Sense(us, srb);
break; /* 0x1A */
case READ_CAPACITY:
result = SM_SCSI_Read_Capacity(us, srb);
break; /* 0x25 */
case READ_10:
result = SM_SCSI_Read(us, srb);
break; /* 0x28 */
case WRITE_10:
result = SM_SCSI_Write(us, srb);
break; /* 0x2A */
default:
us->SrbStatus = SS_ILLEGAL_REQUEST;
result = USB_STOR_TRANSPORT_FAILED;
break;
}
return result;
}
/* ----- SM_SCSI_Test_Unit_Ready() ------------------------------------- */
static int SM_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
{
if (us->SM_Status.Insert && us->SM_Status.Ready)
return USB_STOR_TRANSPORT_GOOD;
else {
ENE_SMInit(us);
return USB_STOR_TRANSPORT_GOOD;
}
return USB_STOR_TRANSPORT_GOOD;
}
/* ----- SM_SCSI_Inquiry() --------------------------------------------- */
static int SM_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
{
BYTE 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(us, data_ptr, 36, srb, TO_XFER_BUF);
return USB_STOR_TRANSPORT_GOOD;
}
/* ----- SM_SCSI_Mode_Sense() ------------------------------------------ */
static int SM_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb)
{
BYTE mediaNoWP[12] = {0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
BYTE mediaWP[12] = {0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
if (us->SM_Status.WtP)
usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
else
usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);
return USB_STOR_TRANSPORT_GOOD;
}
/* ----- SM_SCSI_Read_Capacity() --------------------------------------- */
static int SM_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb)
{
unsigned int offset = 0;
struct scatterlist *sg = NULL;
DWORD bl_num;
WORD bl_len;
BYTE buf[8];
dev_dbg(&us->pusb_dev->dev, "SM_SCSI_Read_Capacity\n");
bl_len = 0x200;
bl_num = Ssfdc.MaxLogBlocks * Ssfdc.MaxSectors * Ssfdc.MaxZones - 1;
us->bl_num = bl_num;
dev_dbg(&us->pusb_dev->dev, "bl_len = %x\n", bl_len);
dev_dbg(&us->pusb_dev->dev, "bl_num = %x\n", bl_num);
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(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
return USB_STOR_TRANSPORT_GOOD;
}
/* ----- SM_SCSI_Read() -------------------------------------------------- */
static int SM_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
{
int result = 0;
PBYTE Cdb = srb->cmnd;
DWORD bn = ((Cdb[2] << 24) & 0xff000000) |
((Cdb[3] << 16) & 0x00ff0000) |
((Cdb[4] << 8) & 0x0000ff00) |
((Cdb[5] << 0) & 0x000000ff);
WORD blen = ((Cdb[7] << 8) & 0xff00) | ((Cdb[8] << 0) & 0x00ff);
DWORD blenByte = blen * 0x200;
void *buf;
if (bn > us->bl_num)
return USB_STOR_TRANSPORT_ERROR;
buf = kmalloc(blenByte, GFP_KERNEL);
if (buf == NULL)
return USB_STOR_TRANSPORT_ERROR;
result = Media_D_ReadSector(us, bn, blen, buf);
usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
kfree(buf);
if (!result)
return USB_STOR_TRANSPORT_GOOD;
else
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
/* ----- SM_SCSI_Write() -------------------------------------------------- */
static int SM_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
{
int result = 0;
PBYTE Cdb = srb->cmnd;
DWORD bn = ((Cdb[2] << 24) & 0xff000000) |
((Cdb[3] << 16) & 0x00ff0000) |
((Cdb[4] << 8) & 0x0000ff00) |
((Cdb[5] << 0) & 0x000000ff);
WORD blen = ((Cdb[7] << 8) & 0xff00) | ((Cdb[8] << 0) & 0x00ff);
DWORD blenByte = blen * 0x200;
void *buf;
if (bn > us->bl_num)
return USB_STOR_TRANSPORT_ERROR;
buf = kmalloc(blenByte, GFP_KERNEL);
if (buf == NULL)
return USB_STOR_TRANSPORT_ERROR;
usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);
result = Media_D_CopySector(us, bn, blen, buf);
kfree(buf);
if (!result)
return USB_STOR_TRANSPORT_GOOD;
else
return USB_STOR_TRANSPORT_ERROR;
return USB_STOR_TRANSPORT_GOOD;
}
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