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fix typographical mistakes in comments

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Also, fix up some white-space issues.  No functional change here.
This commit is contained in:
William Leara 2024-02-14 13:31:35 -06:00
parent e236b5b054
commit 0be37ccde0
1 changed files with 132 additions and 132 deletions
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264
src/BlueSCSI.cpp
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@ -1,38 +1,38 @@
/* /*
* BlueSCSI * BlueSCSI
* Copyright (c) 2021 Eric Helgeson, Androda * Copyright (c) 2021 Eric Helgeson, Androda
* *
* This file is free software: you may copy, redistribute and/or modify it * This file is free software: you may copy, redistribute and/or modify it
* under the terms of the GNU General Public License as published by the * under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 2 of the License, or (at your * Free Software Foundation, either version 2 of the License, or (at your
* option) any later version. * option) any later version.
* *
* This file is distributed in the hope that it will be useful, but * This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of * WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details. * General Public License for more details.
* *
* You should have received a copy of the GNU General Public License * You should have received a copy of the GNU General Public License
* along with this program. If not, see https://github.com/erichelgeson/bluescsi. * along with this program. If not, see https://github.com/erichelgeson/bluescsi.
* *
* This file incorporates work covered by the following copyright and * This file incorporates work covered by the following copyright and
* permission notice: * permission notice:
* *
* Copyright (c) 2019 komatsu * Copyright (c) 2019 komatsu
* *
* Permission to use, copy, modify, and/or distribute this software * Permission to use, copy, modify, and/or distribute this software
* for any purpose with or without fee is hereby granted, provided * for any purpose with or without fee is hereby granted, provided
* that the above copyright notice and this permission notice appear * that the above copyright notice and this permission notice appear
* in all copies. * in all copies.
* *
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/ */
#include <Arduino.h> // For Platform.IO #include <Arduino.h> // For Platform.IO
@ -72,7 +72,7 @@ byte m_scsi_buf[SCSI_BUF_SIZE]; // Buffer for SCSI READ/WRITE Buffer
SCSI_DEVICE scsi_device_list[NUM_SCSIID][NUM_SCSILUN]; // Maximum number SCSI_DEVICE scsi_device_list[NUM_SCSIID][NUM_SCSILUN]; // Maximum number
SCSI_INQUIRY_DATA default_hdd, default_optical; SCSI_INQUIRY_DATA default_hdd, default_optical;
// Enables SCSI IDs to be representing as LUNs on SCSI ID 0 // Enables SCSI IDs to be representing as LUNs on SCSI ID 0
// This supports a specific case for the Atari MegaSTE internal SCSI adapter // This supports a specific case for the Atari MegaSTE internal SCSI adapter
bool ids_as_luns = false; bool ids_as_luns = false;
@ -177,7 +177,7 @@ void readSCSIDeviceConfig(uint8_t scsi_id, SCSI_DEVICE *dev) {
LOG_FILE.print("vendor:"); LOG_FILE.print("vendor:");
LOG_FILE.println(buf); LOG_FILE.println(buf);
} }
if(ini_gets(section, "product", NULL, buf, SCSI_BUF_SIZE, BLUESCSI_INI)) { if(ini_gets(section, "product", NULL, buf, SCSI_BUF_SIZE, BLUESCSI_INI)) {
memcpy(iq->product, buf, SCSI_PRODUCT_LENGTH); memcpy(iq->product, buf, SCSI_PRODUCT_LENGTH);
LOG_FILE.print("product:"); LOG_FILE.print("product:");
@ -238,7 +238,7 @@ void readSDCardInfo(int success_mhz)
} }
bool VerifyISOPVD(SCSI_DEVICE *dev, unsigned sector_size, bool mode2) bool VerifyISOPVD(SCSI_DEVICE *dev, unsigned sector_size, bool mode2)
{ {
int seek = 16 * sector_size; int seek = 16 * sector_size;
if(sector_size > CDROM_COMMON_SECTORSIZE) seek += 16; if(sector_size > CDROM_COMMON_SECTORSIZE) seek += 16;
if(mode2) seek += 8; if(mode2) seek += 8;
@ -269,7 +269,7 @@ bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
if(!dev->m_file.isOpen()) { goto failed; } if(!dev->m_file.isOpen()) { goto failed; }
dev->m_fileSize = dev->m_file.size(); dev->m_fileSize = dev->m_file.size();
if(dev->m_fileSize < 1) { if(dev->m_fileSize < 1) {
LOG_FILE.println(" - file is 0 bytes, can not use."); LOG_FILE.println(" - file is 0 bytes, can not use.");
goto failed; goto failed;
@ -338,8 +338,8 @@ bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
} }
return true; // File opened return true; // File opened
failed: failed:
dev->m_file.close(); dev->m_file.close();
dev->m_fileSize = dev->m_blocksize = 0; // no file dev->m_fileSize = dev->m_blocksize = 0; // no file
//delete dev->m_file; //delete dev->m_file;
@ -379,7 +379,7 @@ void setup()
scsi_command_table[SCSI_RELEASE] = onNOP; scsi_command_table[SCSI_RELEASE] = onNOP;
scsi_command_table[SCSI_RESERVE] = onNOP; scsi_command_table[SCSI_RESERVE] = onNOP;
scsi_command_table[SCSI_TEST_UNIT_READY] = onNOP; scsi_command_table[SCSI_TEST_UNIT_READY] = onNOP;
// SCSI commands that have handlers // SCSI commands that have handlers
scsi_command_table[SCSI_REZERO_UNIT] = onReZeroUnit; scsi_command_table[SCSI_REZERO_UNIT] = onReZeroUnit;
scsi_command_table[SCSI_REQUEST_SENSE] = onRequestSense; scsi_command_table[SCSI_REQUEST_SENSE] = onRequestSense;
@ -433,7 +433,7 @@ void setup()
memcpy(&default_optical.revision, "1.9a", 4); memcpy(&default_optical.revision, "1.9a", 4);
default_optical.release = 0x20; default_optical.release = 0x20;
memcpy(&default_optical.revision_date, "1995", 4); memcpy(&default_optical.revision_date, "1995", 4);
// Serial initialization // Serial initialization
#if DEBUG > 0 #if DEBUG > 0
Serial.begin(9600); Serial.begin(9600);
@ -459,7 +459,7 @@ void setup()
pinMode(TR_TARGET, OUTPUT); pinMode(TR_TARGET, OUTPUT);
pinMode(TR_INITIATOR, OUTPUT); pinMode(TR_INITIATOR, OUTPUT);
pinMode(TR_DBP, OUTPUT); pinMode(TR_DBP, OUTPUT);
TRANSCEIVER_IO_SET(vTR_INITIATOR,TR_INPUT); TRANSCEIVER_IO_SET(vTR_INITIATOR,TR_INPUT);
#endif #endif
@ -474,7 +474,7 @@ void setup()
#ifdef XCVR #ifdef XCVR
TRANSCEIVER_IO_SET(vTR_DBP,TR_INPUT); TRANSCEIVER_IO_SET(vTR_DBP,TR_INPUT);
// Initiator port // Initiator port
pinMode(ATN, INPUT); pinMode(ATN, INPUT);
pinMode(BSY, INPUT); pinMode(BSY, INPUT);
@ -614,13 +614,13 @@ void findDriveImages(FsFile root) {
file.close(); file.close();
continue; continue;
} }
switch (tolower(name[0])) { switch (tolower(name[0])) {
case 'h': case 'h':
device_type = SCSI_DEVICE_HDD; device_type = SCSI_DEVICE_HDD;
file = SD.open(name, O_RDWR); file = SD.open(name, O_RDWR);
break; break;
case 'c': case 'c':
device_type = SCSI_DEVICE_OPTICAL; device_type = SCSI_DEVICE_OPTICAL;
file = SD.open(name, O_RDONLY); file = SD.open(name, O_RDONLY);
break; break;
@ -686,14 +686,14 @@ void findDriveImages(FsFile root) {
image_ready = hddimageOpen(dev, &file, id, lun, blk); image_ready = hddimageOpen(dev, &file, id, lun, blk);
if(image_ready) { // Marked as a responsive ID if(image_ready) { // Marked as a responsive ID
scsi_id_mask |= 1<<id; scsi_id_mask |= 1<<id;
switch(dev->m_type) switch(dev->m_type)
{ {
case SCSI_DEVICE_HDD: case SCSI_DEVICE_HDD:
// default SCSI HDD // default SCSI HDD
dev->inquiry_block = default_hdd; dev->inquiry_block = default_hdd;
break; break;
case SCSI_DEVICE_OPTICAL: case SCSI_DEVICE_OPTICAL:
// default SCSI CDROM // default SCSI CDROM
dev->inquiry_block = default_optical; dev->inquiry_block = default_optical;
@ -702,7 +702,7 @@ void findDriveImages(FsFile root) {
readSCSIDeviceConfig(id, dev); readSCSIDeviceConfig(id, dev);
} }
} }
} }
LOG_FILE.sync(); LOG_FILE.sync();
} }
@ -749,7 +749,7 @@ void finalizeFileLog() {
LOG_FILE.print((dev->m_blocksize<1000) ? ": " : ":"); LOG_FILE.print((dev->m_blocksize<1000) ? ": " : ":");
LOG_FILE.print(dev->m_blocksize); LOG_FILE.print(dev->m_blocksize);
} }
else else
LOG_FILE.print(":----"); LOG_FILE.print(":----");
} }
LOG_FILE.println(":"); LOG_FILE.println(":");
@ -824,7 +824,7 @@ void onBusReset(void)
LOGN("BusReset!"); LOGN("BusReset!");
if (m_resetJmp) { if (m_resetJmp) {
m_resetJmp = false; m_resetJmp = false;
// Jumping out of the interrupt handler, so need to clear the interupt source. // Jumping out of the interrupt handler, so need to clear the interrupt source.
uint8 exti = PIN_MAP[RST].gpio_bit; uint8 exti = PIN_MAP[RST].gpio_bit;
EXTI_BASE->PR = (1U << exti); EXTI_BASE->PR = (1U << exti);
longjmpFromInterrupt(m_resetJmpBuf, 1); longjmpFromInterrupt(m_resetJmpBuf, 1);
@ -834,7 +834,7 @@ void onBusReset(void)
} }
} }
} }
/* /*
* Enable the reset longjmp, and check if reset fired while it was disabled. * Enable the reset longjmp, and check if reset fired while it was disabled.
*/ */
@ -856,7 +856,7 @@ inline byte readHandshake(void)
byte r = readIO(); byte r = readIO();
SCSI_OUT(vREQ,inactive) SCSI_OUT(vREQ,inactive)
while( SCSI_IN(vACK)); while( SCSI_IN(vACK));
return r; return r;
} }
/* /*
@ -908,8 +908,8 @@ inline void writeHandshakeLoop(int len, const byte* srcptr)
register gpio_reg_map *port_b = PBREG; register gpio_reg_map *port_b = PBREG;
register volatile uint32_t *port_a_idr = &(GPIOA->regs->IDR); register volatile uint32_t *port_a_idr = &(GPIOA->regs->IDR);
// Start the first bus cycle. // Start the first bus cycle.
do{ do{
FETCH_BSRR_DB(); FETCH_BSRR_DB();
REQ_OFF_DB_SET(bsrr_val); REQ_OFF_DB_SET(bsrr_val);
WAIT_ACK_INACTIVE(); WAIT_ACK_INACTIVE();
@ -1010,7 +1010,7 @@ void writeDataPhaseSD(SCSI_DEVICE *dev, uint32_t adds, uint32_t len)
TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT) TRANSCEIVER_IO_SET(vTR_DBP,TR_OUTPUT)
#endif #endif
SCSI_DB_OUTPUT() SCSI_DB_OUTPUT()
for(uint32_t i = 0; i < len; i++) { for(uint32_t i = 0; i < len; i++) {
// Asynchronous reads will make it faster ... // Asynchronous reads will make it faster ...
m_resetJmp = false; m_resetJmp = false;
@ -1023,7 +1023,7 @@ void writeDataPhaseSD(SCSI_DEVICE *dev, uint32_t adds, uint32_t len)
#pragma GCC push_options #pragma GCC push_options
#pragma GCC optimize ("-Os") #pragma GCC optimize ("-Os")
/* /*
* See writeDataLoop for optimization info. * See writeDataLoop for optimization info.
*/ */
@ -1134,7 +1134,7 @@ void MsgIn2(int msg)
/* /*
* Main loop. * Main loop.
*/ */
void loop() void loop()
{ {
byte m_id = 0; // Currently responding SCSI-ID byte m_id = 0; // Currently responding SCSI-ID
byte m_lun = 0xff; // Logical unit number currently responding byte m_lun = 0xff; // Logical unit number currently responding
@ -1157,11 +1157,11 @@ void loop()
//do {} while( !SCSI_IN(vBSY) || SCSI_IN(vRST)); //do {} while( !SCSI_IN(vBSY) || SCSI_IN(vRST));
// We're in ARBITRATION // We're in ARBITRATION
//LOG(" A:"); LOGHEX(readIO()); LOG(" "); //LOG(" A:"); LOGHEX(readIO()); LOG(" ");
//do {} while( SCSI_IN(vBSY) || !SCSI_IN(vSEL) || SCSI_IN(vRST)); //do {} while( SCSI_IN(vBSY) || !SCSI_IN(vSEL) || SCSI_IN(vRST));
//LOG(" S:"); LOGHEX(readIO()); LOG(" "); //LOG(" S:"); LOGHEX(readIO()); LOG(" ");
// We're in SELECTION // We're in SELECTION
byte scsiid = readIO() & scsi_id_mask; byte scsiid = readIO() & scsi_id_mask;
if(SCSI_IN(vIO) || (scsiid) == 0) { if(SCSI_IN(vIO) || (scsiid) == 0) {
delayMicroseconds(1); delayMicroseconds(1);
@ -1181,7 +1181,7 @@ void loop()
// Wait until SEL becomes inactive // Wait until SEL becomes inactive
while(isHigh(gpio_read(SEL))) {} while(isHigh(gpio_read(SEL))) {}
// Ask for a TARGET-ID to respond // Ask for a TARGET-ID to respond
m_id = 31 - __builtin_clz(scsiid); m_id = 31 - __builtin_clz(scsiid);
@ -1191,8 +1191,8 @@ void loop()
goto BusFree; goto BusFree;
} }
enableResetJmp(); enableResetJmp();
// In SCSI-2 this is mandatory, but in SCSI-1 it's optional // In SCSI-2 this is mandatory, but in SCSI-1 it's optional
if(isHigh(gpio_read(ATN))) { if(isHigh(gpio_read(ATN))) {
SCSI_PHASE_CHANGE(SCSI_PHASE_MESSAGEOUT); SCSI_PHASE_CHANGE(SCSI_PHASE_MESSAGEOUT);
// Bus settle delay 400ns. Following code was measured at 350ns before REQ asserted. Added another 50ns. STM32F103. // Bus settle delay 400ns. Following code was measured at 350ns before REQ asserted. Added another 50ns. STM32F103.
@ -1250,13 +1250,13 @@ void loop()
LOG("CMD:"); LOG("CMD:");
SCSI_PHASE_CHANGE(SCSI_PHASE_COMMAND); SCSI_PHASE_CHANGE(SCSI_PHASE_COMMAND);
// Bus settle delay 400ns. The following code was measured at 20ns before REQ asserted. Added another 380ns. STM32F103. // Bus settle delay 400ns. The following code was measured at 20ns before REQ asserted. Added another 380ns. STM32F103.
asm("nop;nop;nop;nop;nop;nop;nop;nop");// This asm causes some code reodering, which adds 270ns, plus 8 nop cycles for an additional 110ns. STM32F103 asm("nop;nop;nop;nop;nop;nop;nop;nop");// This asm causes some code reordering, which adds 270ns, plus 8 nop cycles for an additional 110ns. STM32F103
int len; int len;
byte cmd[20]; byte cmd[20];
cmd[0] = readHandshake(); cmd[0] = readHandshake();
// Atari ST ICD extension support // Atari ST ICD extension support
// It sends a 0x1F as a indicator there is a // It sends a 0x1F as a indicator there is a
// proper full size SCSI command byte to follow // proper full size SCSI command byte to follow
// so just read it and re-read it again to get the // so just read it and re-read it again to get the
// real command byte // real command byte
@ -1284,7 +1284,7 @@ void loop()
if(ids_as_luns) if(ids_as_luns)
{ {
// if this mode is enabled we are going to substitute all SCSI IDs as LUNs on ID0 // if this mode is enabled we are going to substitute all SCSI IDs as LUNs on ID0
// this is because the MegaSTE internal adapter only supports ID0. This lets multiple // this is because the MegaSTE internal adapter only supports ID0. This lets multiple
// devices still be used // devices still be used
LOG(" MSTE MODE ID:"); LOG(m_id); LOG(" LUN:"); LOG(m_lun); LOG(" MSTE MODE ID:"); LOG(m_id); LOG(" LUN:"); LOG(m_lun);
@ -1339,10 +1339,10 @@ void loop()
(byte)SCSI_ASC_LOGICAL_UNIT_NOT_SUPPORTED, (byte)SCSI_ASC_LOGICAL_UNIT_NOT_SUPPORTED,
0, 0, 0, 0, 0, 0, 0, 0,
}; };
writeDataPhase(cmd[4] < 18 ? cmd[4] : 18, buf); writeDataPhase(cmd[4] < 18 ? cmd[4] : 18, buf);
} }
else else
{ {
m_sts = SCSI_STATUS_CHECK_CONDITION; m_sts = SCSI_STATUS_CHECK_CONDITION;
} }
@ -1441,7 +1441,7 @@ byte onRequestSense(SCSI_DEVICE *dev, const byte *cdb)
}; };
dev->m_senseKey = 0; dev->m_senseKey = 0;
dev->m_additional_sense_code = 0; dev->m_additional_sense_code = 0;
writeDataPhase(cdb[4] < 18 ? cdb[4] : 18, buf); writeDataPhase(cdb[4] < 18 ? cdb[4] : 18, buf);
return SCSI_STATUS_GOOD; return SCSI_STATUS_GOOD;
} }
@ -1473,7 +1473,7 @@ byte onReadCapacity(SCSI_DEVICE *dev, const byte *cdb)
byte checkBlockCommand(SCSI_DEVICE *dev, uint32_t adds, uint32_t len) byte checkBlockCommand(SCSI_DEVICE *dev, uint32_t adds, uint32_t len)
{ {
// Check block range is valid // Check block range is valid
if (adds >= dev->m_blockcount || (adds + len) > dev->m_blockcount) { if (adds >= dev->m_blockcount || (adds + len) > dev->m_blockcount) {
dev->m_senseKey = SCSI_SENSE_ILLEGAL_REQUEST; dev->m_senseKey = SCSI_SENSE_ILLEGAL_REQUEST;
dev->m_additional_sense_code = SCSI_ASC_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE; dev->m_additional_sense_code = SCSI_ASC_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE;
return SCSI_STATUS_CHECK_CONDITION; return SCSI_STATUS_CHECK_CONDITION;
@ -1495,12 +1495,12 @@ static byte onRead6(SCSI_DEVICE *dev, const byte *cdb)
LOG(":"); LOG(":");
LOGHEXN(len); LOGHEXN(len);
*/ */
byte sts = checkBlockCommand(dev, adds, len); byte sts = checkBlockCommand(dev, adds, len);
if (sts) { if (sts) {
return sts; return sts;
} }
writeDataPhaseSD(dev, adds, len); writeDataPhaseSD(dev, adds, len);
return SCSI_STATUS_GOOD; return SCSI_STATUS_GOOD;
} }
@ -1509,19 +1509,19 @@ static byte onRead10(SCSI_DEVICE *dev, const byte *cdb)
{ {
unsigned adds = ((uint32_t)cdb[2] << 24) | ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5]; unsigned adds = ((uint32_t)cdb[2] << 24) | ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5];
unsigned len = ((uint32_t)cdb[7] << 8) | cdb[8]; unsigned len = ((uint32_t)cdb[7] << 8) | cdb[8];
LOG (" Read10 "); LOG (" Read10 ");
LOG("A:"); LOG("A:");
LOGHEX(adds); LOGHEX(adds);
LOG(":"); LOG(":");
LOGHEX(len); LOGHEX(len);
LOG(" "); LOG(" ");
byte sts = checkBlockCommand(dev, adds, len); byte sts = checkBlockCommand(dev, adds, len);
if (sts) { if (sts) {
return sts; return sts;
} }
writeDataPhaseSD(dev, adds, len); writeDataPhaseSD(dev, adds, len);
return SCSI_STATUS_GOOD; return SCSI_STATUS_GOOD;
} }
@ -1547,7 +1547,7 @@ static byte onWrite6(SCSI_DEVICE *dev, const byte *cdb)
dev->m_additional_sense_code = SCSI_ASC_WRITE_PROTECTED; // Write Protect dev->m_additional_sense_code = SCSI_ASC_WRITE_PROTECTED; // Write Protect
return SCSI_STATUS_CHECK_CONDITION; return SCSI_STATUS_CHECK_CONDITION;
} }
byte sts = checkBlockCommand(dev, adds, len); byte sts = checkBlockCommand(dev, adds, len);
if (sts) { if (sts) {
return sts; return sts;
@ -1634,11 +1634,11 @@ byte onModeSense(SCSI_DEVICE *dev, const byte *cdb)
length = cdb[7]; length = cdb[7];
length <<= 8; length <<= 8;
length |= cdb[8]; length |= cdb[8];
if(length > 0x800) { length = 0x800; }; if(length > 0x800) { length = 0x800; };
} }
memset(m_buf, 0, length); memset(m_buf, 0, length);
if(!dbd) { if(!dbd) {
byte c[8] = { byte c[8] = {
0,//Density code 0,//Density code
@ -1704,7 +1704,7 @@ byte onModeSense(SCSI_DEVICE *dev, const byte *cdb)
m_buf[a + 0] = SCSI_SENSE_MODE_FLEXABLE_GEOMETRY; m_buf[a + 0] = SCSI_SENSE_MODE_FLEXABLE_GEOMETRY;
m_buf[a + 1] = 0x1E; // Page length m_buf[a + 1] = 0x1E; // Page length
if(pageControl != 1) { if(pageControl != 1) {
m_buf[a + 2] = 0x03; m_buf[a + 2] = 0x03;
m_buf[a + 3] = 0xE8; // Transfer rate 1 mbit/s m_buf[a + 3] = 0xE8; // Transfer rate 1 mbit/s
m_buf[a + 4] = 16; // Number of heads m_buf[a + 4] = 16; // Number of heads
m_buf[a + 5] = 63; // Sectors per track m_buf[a + 5] = 63; // Sectors per track
@ -1717,7 +1717,7 @@ byte onModeSense(SCSI_DEVICE *dev, const byte *cdb)
m_buf[a + 0] = SCSI_SENSE_MODE_CACHING; m_buf[a + 0] = SCSI_SENSE_MODE_CACHING;
m_buf[a + 1] = 0x0A; // Page length m_buf[a + 1] = 0x0A; // Page length
if(pageControl != 1) { if(pageControl != 1) {
m_buf[a + 2] = 0x01; // Disalbe Read Cache so no one asks for Cache Stats page. m_buf[a + 2] = 0x01; // Disable Read Cache so no one asks for Cache Stats page.
} }
a += 0x0C; a += 0x0C;
if(pageCode != SCSI_SENSE_MODE_ALL) break; if(pageCode != SCSI_SENSE_MODE_ALL) break;
@ -1772,7 +1772,7 @@ byte onModeSense(SCSI_DEVICE *dev, const byte *cdb)
m_buf[a + 1] = 0x0A; m_buf[a + 1] = 0x0A;
a += 0x0C; a += 0x0C;
if(pageCode != SCSI_SENSE_MODE_ALL) break; if(pageCode != SCSI_SENSE_MODE_ALL) break;
case SCSI_SENSE_MODE_CDROM: case SCSI_SENSE_MODE_CDROM:
m_buf[a + 0] = SCSI_SENSE_MODE_CDROM; m_buf[a + 0] = SCSI_SENSE_MODE_CDROM;
m_buf[a + 1] = 0x06; m_buf[a + 1] = 0x06;
@ -1856,8 +1856,8 @@ byte onListFiles(SCSI_DEVICE *dev, const byte *cdb) {
file_entry[i] = name[c++]; file_entry[i] = name[c++];
} }
file_entry[35] = 0; //(size >> 32) & 0xff; file_entry[35] = 0; //(size >> 32) & 0xff;
file_entry[36] = (size >> 24) & 0xff; file_entry[36] = (size >> 24) & 0xff;
file_entry[37] = (size >> 16) & 0xff; file_entry[37] = (size >> 16) & 0xff;
file_entry[38] = (size >> 8) & 0xff; file_entry[38] = (size >> 8) & 0xff;
file_entry[39] = (size) & 0xff; file_entry[39] = (size) & 0xff;
memcpy(&(m_buf[ENTRY_SIZE * index]), file_entry, ENTRY_SIZE); memcpy(&(m_buf[ENTRY_SIZE * index]), file_entry, ENTRY_SIZE);
@ -1937,7 +1937,7 @@ File get_file_from_index(uint8_t index)
return file_test; return file_test;
} }
File file; // global so we can keep it open while transfering. File file; // global so we can keep it open while transferring.
byte onGetFile(SCSI_DEVICE *dev, const byte *cdb) { byte onGetFile(SCSI_DEVICE *dev, const byte *cdb) {
uint8_t index = cdb[1]; uint8_t index = cdb[1];
uint32_t offset = ((uint32_t)cdb[2] << 24) | ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5]; uint32_t offset = ((uint32_t)cdb[2] << 24) | ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5];
@ -1951,7 +1951,7 @@ byte onGetFile(SCSI_DEVICE *dev, const byte *cdb) {
return SCSI_STATUS_CHECK_CONDITION; return SCSI_STATUS_CHECK_CONDITION;
} }
} }
uint32_t file_total = file.size(); uint32_t file_total = file.size();
memset(m_buf, 0, MAC_BLK_SIZE); memset(m_buf, 0, MAC_BLK_SIZE);
file.seekSet(offset * MAC_BLK_SIZE); file.seekSet(offset * MAC_BLK_SIZE);
@ -1965,7 +1965,7 @@ byte onGetFile(SCSI_DEVICE *dev, const byte *cdb) {
} }
/* /*
Prepares a file for receving. The file name is null terminated in the scsi data. Prepares a file for receiving. The file name is null terminated in the scsi data.
*/ */
File receveFile; File receveFile;
byte onSendFilePrep(SCSI_DEVICE *dev, const byte *cdb) byte onSendFilePrep(SCSI_DEVICE *dev, const byte *cdb)
@ -2011,7 +2011,7 @@ byte onSendFile10(SCSI_DEVICE *dev, const byte *cdb)
// 512 byte offset of where to put these bytes. // 512 byte offset of where to put these bytes.
uint32_t offset = ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5]; uint32_t offset = ((uint32_t)cdb[3] << 16) | ((uint32_t)cdb[4] << 8) | cdb[5];
uint16_t buf_size = SCSI_BUF_SIZE; uint16_t buf_size = SCSI_BUF_SIZE;
// Check if last block of file, and not the only bock in file. // Check if last block of file, and not the only block in file.
if(bytes_sent < buf_size) if(bytes_sent < buf_size)
{ {
buf_size = bytes_sent; buf_size = bytes_sent;
@ -2049,7 +2049,7 @@ void setBlockLength(SCSI_DEVICE *dev, uint32_t length)
dev->m_blocksize = dev->m_rawblocksize = length; dev->m_blocksize = dev->m_rawblocksize = length;
dev->m_blockcount = dev->m_fileSize / dev->m_blocksize; dev->m_blockcount = dev->m_fileSize / dev->m_blocksize;
} }
byte onModeSelect(SCSI_DEVICE *dev, const byte *cdb) byte onModeSelect(SCSI_DEVICE *dev, const byte *cdb)
{ {
unsigned length = 0; unsigned length = 0;
@ -2085,7 +2085,7 @@ byte onModeSelect(SCSI_DEVICE *dev, const byte *cdb)
//0 0 0 8 0 0 0 0 0 0 2 0 0 2 10 0 1 6 24 10 8 0 0 0 //0 0 0 8 0 0 0 0 0 0 2 0 0 2 10 0 1 6 24 10 8 0 0 0
//I believe mode page 0 set to 10 00 is Disable Unit Attention //I believe mode page 0 set to 10 00 is Disable Unit Attention
//Mode page 1 set to 24 10 08 00 00 00 is TB and PER set, read retry count 16, correction span 8 //Mode page 1 set to 24 10 08 00 00 00 is TB and PER set, read retry count 16, correction span 8
if(dev->m_type == SCSI_DEVICE_OPTICAL) if(dev->m_type == SCSI_DEVICE_OPTICAL)
{ {
// check for a block descriptor // check for a block descriptor
@ -2106,7 +2106,7 @@ byte onModeSelect(SCSI_DEVICE *dev, const byte *cdb)
} }
} }
} }
#if DEBUG > 0 #if DEBUG > 0
for (unsigned i = 0; i < length; i++) { for (unsigned i = 0; i < length; i++) {
LOGHEX(m_buf[i]);LOG(" "); LOGHEX(m_buf[i]);LOG(" ");
@ -2121,7 +2121,7 @@ byte onModeSelect(SCSI_DEVICE *dev, const byte *cdb)
*/ */
byte onReZeroUnit(SCSI_DEVICE *dev, const byte *cdb) { byte onReZeroUnit(SCSI_DEVICE *dev, const byte *cdb) {
LOGN("-ReZeroUnit"); LOGN("-ReZeroUnit");
// Make sure we have an image with atleast a first byte. // Make sure we have an image with at least a first byte.
// Actually seeking to the position wont do anything, so dont. // Actually seeking to the position wont do anything, so dont.
return checkBlockCommand(dev, 0, 0); return checkBlockCommand(dev, 0, 0);
} }
@ -2131,7 +2131,7 @@ byte onReZeroUnit(SCSI_DEVICE *dev, const byte *cdb) {
*/ */
byte onWriteBuffer(SCSI_DEVICE *dev, const byte *cdb) byte onWriteBuffer(SCSI_DEVICE *dev, const byte *cdb)
{ {
byte mode = cdb[1] & 7; byte mode = cdb[1] & 7;
uint32_t allocLength = ((uint32_t)cdb[6] << 16) | ((uint32_t)cdb[7] << 8) | cdb[8]; uint32_t allocLength = ((uint32_t)cdb[6] << 16) | ((uint32_t)cdb[7] << 8) | cdb[8];
LOGN("-WriteBuffer"); LOGN("-WriteBuffer");
@ -2176,12 +2176,12 @@ byte onWriteBuffer(SCSI_DEVICE *dev, const byte *cdb)
*/ */
byte onReadBuffer(SCSI_DEVICE *dev, const byte *cdb) byte onReadBuffer(SCSI_DEVICE *dev, const byte *cdb)
{ {
byte mode = cdb[1] & 7; byte mode = cdb[1] & 7;
unsigned m_scsi_buf_size = 0; unsigned m_scsi_buf_size = 0;
#if DEBUG > 0 #if DEBUG > 0
uint32_t allocLength = ((uint32_t)cdb[6] << 16) | ((uint32_t)cdb[7] << 8) | cdb[8]; uint32_t allocLength = ((uint32_t)cdb[6] << 16) | ((uint32_t)cdb[7] << 8) | cdb[8];
#endif #endif
LOGN("-ReadBuffer"); LOGN("-ReadBuffer");
LOGHEXN(mode); LOGHEXN(mode);
LOGHEXN(allocLength); LOGHEXN(allocLength);
@ -2261,23 +2261,23 @@ static byte onReadTOC(SCSI_DEVICE *dev, const byte *cdb)
dev->m_additional_sense_code = SCSI_ASC_INVALID_FIELD_IN_CDB; dev->m_additional_sense_code = SCSI_ASC_INVALID_FIELD_IN_CDB;
return SCSI_STATUS_CHECK_CONDITION; return SCSI_STATUS_CHECK_CONDITION;
#endif #endif
if(track > 1 || cdb[2] != 0) if(track > 1 || cdb[2] != 0)
{ {
dev->m_senseKey = SCSI_SENSE_ILLEGAL_REQUEST; dev->m_senseKey = SCSI_SENSE_ILLEGAL_REQUEST;
dev->m_additional_sense_code = SCSI_ASC_INVALID_FIELD_IN_CDB; dev->m_additional_sense_code = SCSI_ASC_INVALID_FIELD_IN_CDB;
return SCSI_STATUS_CHECK_CONDITION; return SCSI_STATUS_CHECK_CONDITION;
} }
m_buf[1] = 18; // TOC length LSB m_buf[1] = 18; // TOC length LSB
m_buf[2] = 1; // First Track m_buf[2] = 1; // First Track
m_buf[3] = 1; // Last Track m_buf[3] = 1; // Last Track
// first track // first track
m_buf[5] = 0x14; // data track m_buf[5] = 0x14; // data track
m_buf[6] = 1; m_buf[6] = 1;
// leadout track // leadout track
m_buf[13] = 0x14; // data track m_buf[13] = 0x14; // data track
m_buf[14] = 0xaa; // leadout track m_buf[14] = 0xaa; // leadout track
if(msf) if(msf)
@ -2291,7 +2291,7 @@ static byte onReadTOC(SCSI_DEVICE *dev, const byte *cdb)
m_buf[18] = (byte)(dev->m_blockcount >> 8); m_buf[18] = (byte)(dev->m_blockcount >> 8);
m_buf[20] = (byte)(dev->m_blockcount); m_buf[20] = (byte)(dev->m_blockcount);
} }
writeDataPhase(SCSI_TOC_LENGTH > len ? len : SCSI_TOC_LENGTH, m_buf); writeDataPhase(SCSI_TOC_LENGTH > len ? len : SCSI_TOC_LENGTH, m_buf);
return SCSI_STATUS_GOOD; return SCSI_STATUS_GOOD;
} }
@ -2310,44 +2310,44 @@ static byte onReadDVDStructure(SCSI_DEVICE *dev, const byte *cdb)
} }
// Thanks RaSCSI :D // Thanks RaSCSI :D
// LBA→MSF Conversion // LBA→MSF Conversion
static inline void LBAtoMSF(const uint32_t lba, byte *msf) static inline void LBAtoMSF(const uint32_t lba, byte *msf)
{ {
uint32_t m, s, f; uint32_t m, s, f;
// 75 and 75*60 get the remainder // 75 and 75*60 get the remainder
m = lba / (75 * 60); m = lba / (75 * 60);
s = lba % (75 * 60); s = lba % (75 * 60);
f = s % 75; f = s % 75;
s /= 75; s /= 75;
// The base point is M=0, S=2, F=0 // The base point is M=0, S=2, F=0
s += 2; s += 2;
if (s >= 60) { if (s >= 60) {
s -= 60; s -= 60;
m++; m++;
} }
// Store // Store
msf[0] = 0x00; msf[0] = 0x00;
msf[1] = (byte)m; msf[1] = (byte)m;
msf[2] = (byte)s; msf[2] = (byte)s;
msf[3] = (byte)f; msf[3] = (byte)f;
} }
static inline uint32_t MSFtoLBA(const byte *msf) static inline uint32_t MSFtoLBA(const byte *msf)
{ {
uint32_t lba; uint32_t lba;
// 1, 75, add up in multiples of 75*60 // 1, 75, add up in multiples of 75*60
lba = msf[1]; lba = msf[1];
lba *= 60; lba *= 60;
lba += msf[2]; lba += msf[2];
lba *= 75; lba *= 75;
lba += msf[3]; lba += msf[3];
// Since the base point is M=0, S=2, F=0, subtract 150 // Since the base point is M=0, S=2, F=0, subtract 150
lba -= 150; lba -= 150;
return lba; return lba;
} }