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rts51x_scsi.c
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/* Driver for Realtek RTS51xx USB card reader
*
* Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Author:
* wwang ([email protected])
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
* Maintainer:
* Edwin Rong ([email protected])
* No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
*/
#include <linux/blkdev.h>
#include <linux/kthread.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/export.h>
#include <linux/version.h>
#include <scsi/scsi.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_device.h>
#include "debug.h"
#include "rts51x.h"
#include "rts51x_chip.h"
#include "rts51x_scsi.h"
#include "rts51x_card.h"
#include "rts51x_transport.h"
#include "sd_cprm.h"
#include "ms_mg.h"
#include "trace.h"
void rts51x_scsi_show_command(struct scsi_cmnd *srb)
{
char *what = NULL;
int i, unknown_cmd = 0;
switch (srb->cmnd[0]) {
case TEST_UNIT_READY:
what = (char *)"TEST_UNIT_READY";
break;
case REZERO_UNIT:
what = (char *)"REZERO_UNIT";
break;
case REQUEST_SENSE:
what = (char *)"REQUEST_SENSE";
break;
case FORMAT_UNIT:
what = (char *)"FORMAT_UNIT";
break;
case READ_BLOCK_LIMITS:
what = (char *)"READ_BLOCK_LIMITS";
break;
case 0x07:
what = (char *)"REASSIGN_BLOCKS";
break;
case READ_6:
what = (char *)"READ_6";
break;
case WRITE_6:
what = (char *)"WRITE_6";
break;
case SEEK_6:
what = (char *)"SEEK_6";
break;
case READ_REVERSE:
what = (char *)"READ_REVERSE";
break;
case WRITE_FILEMARKS:
what = (char *)"WRITE_FILEMARKS";
break;
case SPACE:
what = (char *)"SPACE";
break;
case INQUIRY:
what = (char *)"INQUIRY";
break;
case RECOVER_BUFFERED_DATA:
what = (char *)"RECOVER_BUFFERED_DATA";
break;
case MODE_SELECT:
what = (char *)"MODE_SELECT";
break;
case RESERVE:
what = (char *)"RESERVE";
break;
case RELEASE:
what = (char *)"RELEASE";
break;
case COPY:
what = (char *)"COPY";
break;
case ERASE:
what = (char *)"ERASE";
break;
case MODE_SENSE:
what = (char *)"MODE_SENSE";
break;
case START_STOP:
what = (char *)"START_STOP";
break;
case RECEIVE_DIAGNOSTIC:
what = (char *)"RECEIVE_DIAGNOSTIC";
break;
case SEND_DIAGNOSTIC:
what = (char *)"SEND_DIAGNOSTIC";
break;
case ALLOW_MEDIUM_REMOVAL:
what = (char *)"ALLOW_MEDIUM_REMOVAL";
break;
case SET_WINDOW:
what = (char *)"SET_WINDOW";
break;
case READ_CAPACITY:
what = (char *)"READ_CAPACITY";
break;
case READ_10:
what = (char *)"READ_10";
break;
case WRITE_10:
what = (char *)"WRITE_10";
break;
case SEEK_10:
what = (char *)"SEEK_10";
break;
case WRITE_VERIFY:
what = (char *)"WRITE_VERIFY";
break;
case VERIFY:
what = (char *)"VERIFY";
break;
case SEARCH_HIGH:
what = (char *)"SEARCH_HIGH";
break;
case SEARCH_EQUAL:
what = (char *)"SEARCH_EQUAL";
break;
case SEARCH_LOW:
what = (char *)"SEARCH_LOW";
break;
case SET_LIMITS:
what = (char *)"SET_LIMITS";
break;
case READ_POSITION:
what = (char *)"READ_POSITION";
break;
case SYNCHRONIZE_CACHE:
what = (char *)"SYNCHRONIZE_CACHE";
break;
case LOCK_UNLOCK_CACHE:
what = (char *)"LOCK_UNLOCK_CACHE";
break;
case READ_DEFECT_DATA:
what = (char *)"READ_DEFECT_DATA";
break;
case MEDIUM_SCAN:
what = (char *)"MEDIUM_SCAN";
break;
case COMPARE:
what = (char *)"COMPARE";
break;
case COPY_VERIFY:
what = (char *)"COPY_VERIFY";
break;
case WRITE_BUFFER:
what = (char *)"WRITE_BUFFER";
break;
case READ_BUFFER:
what = (char *)"READ_BUFFER";
break;
case UPDATE_BLOCK:
what = (char *)"UPDATE_BLOCK";
break;
case READ_LONG:
what = (char *)"READ_LONG";
break;
case WRITE_LONG:
what = (char *)"WRITE_LONG";
break;
case CHANGE_DEFINITION:
what = (char *)"CHANGE_DEFINITION";
break;
case WRITE_SAME:
what = (char *)"WRITE_SAME";
break;
case GPCMD_READ_SUBCHANNEL:
what = (char *)"READ SUBCHANNEL";
break;
case READ_TOC:
what = (char *)"READ_TOC";
break;
case GPCMD_READ_HEADER:
what = (char *)"READ HEADER";
break;
case GPCMD_PLAY_AUDIO_10:
what = (char *)"PLAY AUDIO (10)";
break;
case GPCMD_PLAY_AUDIO_MSF:
what = (char *)"PLAY AUDIO MSF";
break;
case GPCMD_GET_EVENT_STATUS_NOTIFICATION:
what = (char *)"GET EVENT/STATUS NOTIFICATION";
break;
case GPCMD_PAUSE_RESUME:
what = (char *)"PAUSE/RESUME";
break;
case LOG_SELECT:
what = (char *)"LOG_SELECT";
break;
case LOG_SENSE:
what = (char *)"LOG_SENSE";
break;
case GPCMD_STOP_PLAY_SCAN:
what = (char *)"STOP PLAY/SCAN";
break;
case GPCMD_READ_DISC_INFO:
what = (char *)"READ DISC INFORMATION";
break;
case GPCMD_READ_TRACK_RZONE_INFO:
what = (char *)"READ TRACK INFORMATION";
break;
case GPCMD_RESERVE_RZONE_TRACK:
what = (char *)"RESERVE TRACK";
break;
case GPCMD_SEND_OPC:
what = (char *)"SEND OPC";
break;
case MODE_SELECT_10:
what = (char *)"MODE_SELECT_10";
break;
case GPCMD_REPAIR_RZONE_TRACK:
what = (char *)"REPAIR TRACK";
break;
case 0x59:
what = (char *)"READ MASTER CUE";
break;
case MODE_SENSE_10:
what = (char *)"MODE_SENSE_10";
break;
case GPCMD_CLOSE_TRACK:
what = (char *)"CLOSE TRACK/SESSION";
break;
case 0x5C:
what = (char *)"READ BUFFER CAPACITY";
break;
case 0x5D:
what = (char *)"SEND CUE SHEET";
break;
case GPCMD_BLANK:
what = (char *)"BLANK";
break;
case REPORT_LUNS:
what = (char *)"REPORT LUNS";
break;
case MOVE_MEDIUM:
what = (char *)"MOVE_MEDIUM or PLAY AUDIO (12)";
break;
case READ_12:
what = (char *)"READ_12";
break;
case WRITE_12:
what = (char *)"WRITE_12";
break;
case WRITE_VERIFY_12:
what = (char *)"WRITE_VERIFY_12";
break;
case SEARCH_HIGH_12:
what = (char *)"SEARCH_HIGH_12";
break;
case SEARCH_EQUAL_12:
what = (char *)"SEARCH_EQUAL_12";
break;
case SEARCH_LOW_12:
what = (char *)"SEARCH_LOW_12";
break;
case SEND_VOLUME_TAG:
what = (char *)"SEND_VOLUME_TAG";
break;
case READ_ELEMENT_STATUS:
what = (char *)"READ_ELEMENT_STATUS";
break;
case GPCMD_READ_CD_MSF:
what = (char *)"READ CD MSF";
break;
case GPCMD_SCAN:
what = (char *)"SCAN";
break;
case GPCMD_SET_SPEED:
what = (char *)"SET CD SPEED";
break;
case GPCMD_MECHANISM_STATUS:
what = (char *)"MECHANISM STATUS";
break;
case GPCMD_READ_CD:
what = (char *)"READ CD";
break;
case 0xE1:
what = (char *)"WRITE CONTINUE";
break;
case WRITE_LONG_2:
what = (char *)"WRITE_LONG_2";
break;
case VENDOR_CMND:
what = (char *)"Realtek's vendor command";
break;
default:
what = (char *)"(unknown command)";
unknown_cmd = 1;
break;
}
if (srb->cmnd[0] != TEST_UNIT_READY)
RTS51X_DEBUGP("Command %s (%d bytes)\n", what, srb->cmd_len);
if (unknown_cmd) {
RTS51X_DEBUGP("");
for (i = 0; i < srb->cmd_len && i < 16; i++)
RTS51X_DEBUGPN(" %02x", srb->cmnd[i]);
RTS51X_DEBUGPN("\n");
}
}
void rts51x_set_sense_type(struct rts51x_chip *chip, unsigned int lun, int sense_type)
{
switch (sense_type) {
case SENSE_TYPE_MEDIA_CHANGE:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x06, 0, 0x28, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_NOT_PRESENT:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x02, 0, 0x3A, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_LBA_OVER_RANGE:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x05, 0, 0x21, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_LUN_NOT_SUPPORT:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x05, 0, 0x25, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_WRITE_PROTECT:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x07, 0, 0x27, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x03, 0, 0x11, 0, 0, 0);
break;
case SENSE_TYPE_MEDIA_WRITE_ERR:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x03, 0, 0x0C, 0x02, 0, 0);
break;
case SENSE_TYPE_MEDIA_INVALID_CMD_FIELD:
rts51x_set_sense_data(chip, lun, CUR_ERR, ILGAL_REQ, 0,
ASC_INVLD_CDB, ASCQ_INVLD_CDB, CDB_ILLEGAL, 1);
break;
case SENSE_TYPE_FORMAT_CMD_FAILED:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x03, 0, 0x31, 0x01, 0, 0);
break;
#ifdef SUPPORT_MAGIC_GATE
case SENSE_TYPE_MG_KEY_FAIL_NOT_ESTAB:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x05, 0, 0x6F, 0x02, 0, 0);
break;
case SENSE_TYPE_MG_KEY_FAIL_NOT_AUTHEN:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x05, 0, 0x6F, 0x00, 0, 0);
break;
case SENSE_TYPE_MG_INCOMPATIBLE_MEDIUM:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x02, 0, 0x30, 0x00, 0, 0);
break;
case SENSE_TYPE_MG_WRITE_ERR:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0x03, 0, 0x0C, 0x00, 0, 0);
break;
#endif
case SENSE_TYPE_NO_SENSE:
default:
rts51x_set_sense_data(chip, lun, CUR_ERR, 0, 0, 0, 0, 0, 0);
break;
}
}
void rts51x_set_sense_data(struct rts51x_chip *chip, unsigned int lun, u8 err_code,
u8 sense_key, u32 info, u8 asc, u8 ascq, u8 sns_key_info0,
u16 sns_key_info1)
{
struct sense_data_t *sense = &(chip->sense_buffer[lun]);
sense->err_code = err_code;
sense->sense_key = sense_key;
sense->info[0] = (u8) (info >> 24);
sense->info[1] = (u8) (info >> 16);
sense->info[2] = (u8) (info >> 8);
sense->info[3] = (u8) info;
sense->ad_sense_len = sizeof(struct sense_data_t) - 8;
sense->asc = asc;
sense->ascq = ascq;
if (sns_key_info0 != 0) {
sense->sns_key_info[0] = SKSV | sns_key_info0;
sense->sns_key_info[1] = (sns_key_info1 & 0xf0) >> 8;
sense->sns_key_info[2] = sns_key_info1 & 0x0f;
}
}
static int test_unit_ready(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
rts51x_init_cards(chip);
if (!check_card_ready(chip, lun)) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
return TRANSPORT_FAILED;
}
if (!check_lun_mc(chip, lun)) {
set_lun_mc(chip, lun);
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
return TRANSPORT_FAILED;
}
return TRANSPORT_GOOD;
}
unsigned char formatter_inquiry_str[20] = {
'M', 'E', 'M', 'O', 'R', 'Y', 'S', 'T', 'I', 'C', 'K',
'-', 'M', 'G', /* Byte[47:49] */
0x0B, /* Byte[50]: MG, MS, MSPro, MSXC */
0x00, /* Byte[51]: Category Specific Commands */
0x00, /* Byte[52]: Access Control and feature */
0x20, 0x20, 0x20, /* Byte[53:55] */
};
static int inquiry(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
char *inquiry_default = (char *)"Generic-xD/SD/M.S. 1.00 ";
char *inquiry_string;
unsigned char sendbytes;
unsigned char *buf;
u8 card = rts51x_get_lun_card(chip, lun);
int pro_formatter_flag = 0;
unsigned char inquiry_buf[] = {
QULIFIRE | DRCT_ACCESS_DEV,
RMB_DISC | 0x0D,
0x00,
0x01,
0x1f,
0x02,
0,
REL_ADR | WBUS_32 | WBUS_16 | SYNC | LINKED | CMD_QUE | SFT_RE,
};
inquiry_string = inquiry_default;
buf = vmalloc(scsi_bufflen(srb));
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
if (MS_FORMATTER_ENABLED(chip) && (get_lun2card(chip, lun) & MS_CARD)) {
if (!card || (card == MS_CARD))
pro_formatter_flag = 1;
}
if (pro_formatter_flag) {
if (scsi_bufflen(srb) < 56)
sendbytes = (unsigned char)(scsi_bufflen(srb));
else
sendbytes = 56;
} else {
if (scsi_bufflen(srb) < 36)
sendbytes = (unsigned char)(scsi_bufflen(srb));
else
sendbytes = 36;
}
if (sendbytes > 8) {
memcpy(buf, inquiry_buf, 8);
if(sendbytes - 8 <= strlen(inquiry_string))
memcpy(buf + 8, inquiry_string, sendbytes - 8);
else
memcpy(buf + 8, inquiry_string, strlen(inquiry_string));
if (pro_formatter_flag)
buf[4] = 0x33; /* Additional Length */
} else {
memcpy(buf, inquiry_buf, sendbytes);
}
if (pro_formatter_flag) {
if (sendbytes > 36)
memcpy(buf + 36, formatter_inquiry_str, sendbytes - 36);
}
scsi_set_resid(srb, 0);
rts51x_set_xfer_buf(buf, scsi_bufflen(srb), srb);
vfree(buf);
return TRANSPORT_GOOD;
}
static int start_stop_unit(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
scsi_set_resid(srb, scsi_bufflen(srb));
if (srb->cmnd[1] == 1)
return TRANSPORT_GOOD;
switch (srb->cmnd[0x4]) {
case STOP_MEDIUM:
/* Media disabled */
return TRANSPORT_GOOD;
case UNLOAD_MEDIUM:
/* Media shall be unload */
if (check_card_ready(chip, lun))
rts51x_eject_card(chip, lun);
return TRANSPORT_GOOD;
case MAKE_MEDIUM_READY:
case LOAD_MEDIUM:
if (check_card_ready(chip, lun)) {
return TRANSPORT_GOOD;
} else {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
break;
}
TRACE_RET(chip, TRANSPORT_ERROR);
}
static int allow_medium_removal(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
int prevent;
prevent = srb->cmnd[4] & 0x1;
scsi_set_resid(srb, 0);
if (prevent) {
rts51x_set_sense_type(chip, SCSI_LUN(srb),
SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
return TRANSPORT_GOOD;
}
static void ms_mode_sense(struct rts51x_chip *chip, u8 cmd,
int lun, u8 *buf, int buf_len)
{
struct ms_info *ms_card = &(chip->ms_card);
int sys_info_offset;
int data_size = buf_len;
int support_format = 0;
int i = 0;
if (cmd == MODE_SENSE) {
sys_info_offset = 8;
if (data_size > 0x68)
data_size = 0x68;
buf[i++] = 0x67; /* Mode Data Length */
} else {
sys_info_offset = 12;
if (data_size > 0x6C)
data_size = 0x6C;
buf[i++] = 0x00; /* Mode Data Length (MSB) */
buf[i++] = 0x6A; /* Mode Data Length (LSB) */
}
/* Medium Type Code */
if (check_card_ready(chip, lun)) {
if (CHK_MSXC(ms_card)) {
support_format = 1;
buf[i++] = 0x40;
} else if (CHK_MSPRO(ms_card)) {
support_format = 1;
buf[i++] = 0x20;
} else {
buf[i++] = 0x10;
}
/* WP */
if (check_card_wp(chip, lun))
buf[i++] = 0x80;
else
buf[i++] = 0x00;
} else {
buf[i++] = 0x00; /* MediaType */
buf[i++] = 0x00; /* WP */
}
buf[i++] = 0x00; /* Reserved */
if (cmd == MODE_SENSE_10) {
buf[i++] = 0x00; /* Reserved */
buf[i++] = 0x00; /* Block descriptor length(MSB) */
buf[i++] = 0x00; /* Block descriptor length(LSB) */
/* The Following Data is the content of "Page 0x20" */
if (data_size >= 9)
buf[i++] = 0x20; /* Page Code */
if (data_size >= 10)
buf[i++] = 0x62; /* Page Length */
if (data_size >= 11)
buf[i++] = 0x00; /* No Access Control */
if (data_size >= 12) {
if (support_format)
buf[i++] = 0xC0; /* SF, SGM */
else
buf[i++] = 0x00;
}
} else {
/* The Following Data is the content of "Page 0x20" */
if (data_size >= 5)
buf[i++] = 0x20; /* Page Code */
if (data_size >= 6)
buf[i++] = 0x62; /* Page Length */
if (data_size >= 7)
buf[i++] = 0x00; /* No Access Control */
if (data_size >= 8) {
if (support_format)
buf[i++] = 0xC0; /* SF, SGM */
else
buf[i++] = 0x00;
}
}
if (data_size > sys_info_offset) {
/* 96 Bytes Attribute Data */
int len = data_size - sys_info_offset;
len = (len < 96) ? len : 96;
memcpy(buf + sys_info_offset, ms_card->raw_sys_info, len);
}
}
static int mode_sense(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
unsigned int dataSize;
int status;
int pro_formatter_flag;
unsigned char pageCode, *buf;
u8 card = rts51x_get_lun_card(chip, lun);
if (!check_card_ready(chip, lun)) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
scsi_set_resid(srb, scsi_bufflen(srb));
TRACE_RET(chip, TRANSPORT_FAILED);
}
pro_formatter_flag = 0;
dataSize = 8;
/* In Combo mode, device responses ModeSense command as a MS LUN
* when no card is inserted */
if ((get_lun2card(chip, lun) & MS_CARD)) {
if (!card || (card == MS_CARD)) {
dataSize = 108;
if (chip->option.rts51x_mspro_formatter_enable)
pro_formatter_flag = 1;
}
}
buf = kmalloc(dataSize, GFP_KERNEL);
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
pageCode = srb->cmnd[2] & 0x3f;
if ((pageCode == 0x3F) || (pageCode == 0x1C) ||
(pageCode == 0x00) || (pro_formatter_flag && (pageCode == 0x20))) {
if (srb->cmnd[0] == MODE_SENSE) {
if ((pageCode == 0x3F) || (pageCode == 0x20)) {
ms_mode_sense(chip, srb->cmnd[0], lun, buf,
dataSize);
} else {
dataSize = 4;
buf[0] = 0x03;
buf[1] = 0x00;
if (check_card_wp(chip, lun))
buf[2] = 0x80;
else
buf[3] = 0x00;
}
} else {
if ((pageCode == 0x3F) || (pageCode == 0x20)) {
ms_mode_sense(chip, srb->cmnd[0], lun, buf,
dataSize);
} else {
dataSize = 8;
buf[0] = 0x00;
buf[1] = 0x06;
buf[2] = 0x00;
if (check_card_wp(chip, lun))
buf[3] = 0x80;
else
buf[3] = 0x00;
buf[4] = 0x00;
buf[5] = 0x00;
buf[6] = 0x00;
buf[7] = 0x00;
}
}
status = TRANSPORT_GOOD;
} else {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
scsi_set_resid(srb, scsi_bufflen(srb));
status = TRANSPORT_FAILED;
}
if (status == TRANSPORT_GOOD) {
unsigned int len = min(scsi_bufflen(srb), dataSize);
rts51x_set_xfer_buf(buf, len, srb);
scsi_set_resid(srb, scsi_bufflen(srb) - len);
}
kfree(buf);
return status;
}
static int request_sense(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
struct sense_data_t *sense;
unsigned int lun = SCSI_LUN(srb);
struct ms_info *ms_card = &(chip->ms_card);
unsigned char *tmp, *buf;
sense = &(chip->sense_buffer[lun]);
if ((rts51x_get_lun_card(chip, lun) == MS_CARD)
&& PRO_UNDER_FORMATTING(ms_card)) {
rts51x_mspro_format_sense(chip, lun);
}
buf = vmalloc(scsi_bufflen(srb));
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
tmp = (unsigned char *)sense;
memcpy(buf, tmp, scsi_bufflen(srb));
rts51x_set_xfer_buf(buf, scsi_bufflen(srb), srb);
vfree(buf);
scsi_set_resid(srb, 0);
/* Reset Sense Data */
rts51x_set_sense_type(chip, lun, SENSE_TYPE_NO_SENSE);
return TRANSPORT_GOOD;
}
static int read_write(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
int retval;
u32 start_sec;
u16 sec_cnt;
if (!check_card_ready(chip, lun) || (chip->capacity[lun] == 0)) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if (!check_lun_mc(chip, lun)) {
set_lun_mc(chip, lun);
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
return TRANSPORT_FAILED;
}
rts51x_prepare_run(chip);
RTS51X_SET_STAT(chip, STAT_RUN);
if ((srb->cmnd[0] == READ_10) || (srb->cmnd[0] == WRITE_10)) {
start_sec =
((u32) srb->cmnd[2] << 24) |
((u32) srb->cmnd[3] << 16) |
((u32) srb->cmnd[4] << 8) |
((u32) srb->cmnd[5]);
sec_cnt = ((u16) (srb->cmnd[7]) << 8) | srb->cmnd[8];
} else if ((srb->cmnd[0] == READ_6) || (srb->cmnd[0] == WRITE_6)) {
start_sec = ((u32) (srb->cmnd[1] & 0x1F) << 16) |
((u32) srb->cmnd[2] << 8) | ((u32) srb->cmnd[3]);
sec_cnt = srb->cmnd[4];
} else if ((srb->cmnd[0] == VENDOR_CMND) &&
(srb->cmnd[1] == SCSI_APP_CMD) &&
((srb->cmnd[2] == PP_READ10) ||
(srb->cmnd[2] == PP_WRITE10))) {
start_sec = ((u32) srb->cmnd[4] << 24) |
((u32) srb->cmnd[5] << 16) |
((u32) srb->cmnd[6] << 8) |
((u32) srb->cmnd[7]);
sec_cnt = ((u16) (srb->cmnd[9]) << 8) | srb->cmnd[10];
} else {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_INVALID_CMD_FIELD);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if ((start_sec > chip->capacity[lun]) ||
((start_sec + sec_cnt) > chip->capacity[lun])) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_LBA_OVER_RANGE);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if (sec_cnt == 0) {
scsi_set_resid(srb, 0);
return TRANSPORT_GOOD;
}
if ((srb->sc_data_direction == DMA_TO_DEVICE)
&& check_card_wp(chip, lun)) {
RTS51X_DEBUGP("Write protected card!\n");
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_PROTECT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
retval = rts51x_card_rw(srb, chip, start_sec, sec_cnt);
if (retval != STATUS_SUCCESS) {
if (srb->sc_data_direction == DMA_FROM_DEVICE) {
rts51x_set_sense_type(chip, lun,
SENSE_TYPE_MEDIA_UNRECOVER_READ_ERR);
} else {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_WRITE_ERR);
}
TRACE_RET(chip, TRANSPORT_FAILED);
}
scsi_set_resid(srb, 0);
return TRANSPORT_GOOD;
}
static int read_format_capacity(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned char *buf;
unsigned int lun = SCSI_LUN(srb);
unsigned int buf_len;
u8 card = rts51x_get_lun_card(chip, lun);
int desc_cnt;
int i = 0;
if (!check_card_ready(chip, lun)) {
if (!chip->option.rts51x_mspro_formatter_enable) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
}
buf_len = (scsi_bufflen(srb) > 12) ? 0x14 : 12;
buf = kmalloc(buf_len, GFP_KERNEL);
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
buf[i++] = 0;
buf[i++] = 0;
buf[i++] = 0;
/* Capacity List Length */
if ((buf_len > 12) && chip->option.rts51x_mspro_formatter_enable &&
(chip->lun2card[lun] & MS_CARD) && (!card || (card == MS_CARD))) {
buf[i++] = 0x10;
desc_cnt = 2;
} else {
buf[i++] = 0x08;
desc_cnt = 1;
}
while (desc_cnt) {
if (check_card_ready(chip, lun)) {
buf[i++] = (unsigned char)((chip->capacity[lun]) >> 24);
buf[i++] = (unsigned char)((chip->capacity[lun]) >> 16);
buf[i++] = (unsigned char)((chip->capacity[lun]) >> 8);
buf[i++] = (unsigned char)(chip->capacity[lun]);
if (desc_cnt == 2)
/* Byte[8]: Descriptor Type: Formatted medium */
buf[i++] = 2;
else
buf[i++] = 0; /* Byte[16] */
} else {
buf[i++] = 0xFF;
buf[i++] = 0xFF;
buf[i++] = 0xFF;
buf[i++] = 0xFF;
if (desc_cnt == 2)
/* Byte[8]: Descriptor Type: No medium */
buf[i++] = 3;
else
buf[i++] = 0; /*Byte[16] */
}
buf[i++] = 0x00;
buf[i++] = 0x02;
buf[i++] = 0x00;
desc_cnt--;
}
buf_len = min(scsi_bufflen(srb), buf_len);
rts51x_set_xfer_buf(buf, buf_len, srb);
kfree(buf);
scsi_set_resid(srb, scsi_bufflen(srb) - buf_len);
return TRANSPORT_GOOD;
}
static int read_capacity(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned char *buf;
unsigned int lun = SCSI_LUN(srb);
if (!check_card_ready(chip, lun)) {
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_NOT_PRESENT);
TRACE_RET(chip, TRANSPORT_FAILED);
}
if (!check_lun_mc(chip, lun)) {
set_lun_mc(chip, lun);
rts51x_set_sense_type(chip, lun, SENSE_TYPE_MEDIA_CHANGE);
return TRANSPORT_FAILED;
}
buf = kmalloc(8, GFP_KERNEL);
if (buf == NULL)
TRACE_RET(chip, TRANSPORT_ERROR);
buf[0] = (unsigned char)((chip->capacity[lun] - 1) >> 24);
buf[1] = (unsigned char)((chip->capacity[lun] - 1) >> 16);
buf[2] = (unsigned char)((chip->capacity[lun] - 1) >> 8);
buf[3] = (unsigned char)(chip->capacity[lun] - 1);
buf[4] = 0x00;
buf[5] = 0x00;
buf[6] = 0x02;
buf[7] = 0x00;
rts51x_set_xfer_buf(buf, scsi_bufflen(srb), srb);
kfree(buf);
scsi_set_resid(srb, 0);
return TRANSPORT_GOOD;
}
static int get_dev_status(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
unsigned int lun = SCSI_LUN(srb);
unsigned int buf_len;
u8 status[32] = { 0 };
rts51x_pp_status(chip, lun, status, 32);
buf_len = min_t(unsigned int, scsi_bufflen(srb), sizeof(status));
rts51x_set_xfer_buf(status, buf_len, srb);
scsi_set_resid(srb, scsi_bufflen(srb) - buf_len);
return TRANSPORT_GOOD;
}
static int read_status(struct scsi_cmnd *srb, struct rts51x_chip *chip)
{
u8 rts51x_status[16];
unsigned int buf_len;
unsigned int lun = SCSI_LUN(srb);
rts51x_read_status(chip, lun, rts51x_status, 16);
buf_len = min_t(unsigned int, scsi_bufflen(srb), sizeof(rts51x_status));
rts51x_set_xfer_buf(rts51x_status, buf_len, srb);
scsi_set_resid(srb, scsi_bufflen(srb) - buf_len);
return TRANSPORT_GOOD;
}