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The BusLogic SCSI controller emulation is now fully converted to the SCSI device abstraction layer;

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The SCSI device abstraction layer is now in scsi_device.c/h.
This commit is contained in:
OBattler
2017-08-22 05:45:07 +02:00
parent 88c06aacb1
commit 935f36f80b
6 changed files with 355 additions and 411 deletions
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7
src/Makefile.mingw
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@@ -213,7 +213,7 @@ NETOBJ = network.o \
ip_input.o queue.o tcp_input.o debug.o ip_output.o \ ip_input.o queue.o tcp_input.o debug.o ip_output.o \
sbuf.o tcp_output.o udp.o if.o mbuf.o slirp.o tcp_subr.o \ sbuf.o tcp_output.o udp.o if.o mbuf.o slirp.o tcp_subr.o \
net_ne2000.o net_ne2000.o
SCSIOBJ = scsi.o scsi_disk.o scsi_buslogic.o scsi_aha154x.o SCSIOBJ = scsi.o scsi_device.o scsi_disk.o scsi_buslogic.o scsi_aha154x.o
SNDOBJ = sound.o \ SNDOBJ = sound.o \
openal.o \ openal.o \
dbopl.o nukedopl.o \ dbopl.o nukedopl.o \
@@ -552,11 +552,14 @@ scat.o: ibm.h cpu/cpu.h io.h mem.h device.h model.h
scsi.o: 86box.h ibm.h timer.h device.h cdrom.h scsi.h \ scsi.o: 86box.h ibm.h timer.h device.h cdrom.h scsi.h \
scsi_aha154x.h scsi_buslogic.h scsi_aha154x.h scsi_buslogic.h
scsi_device.o: ibm.h scsi.h scsi_disk.h cdrom.h
scsi_aha154x.o: ibm.h io.h mca.h mem.h mca.h rom.h dma.h pic.h timer.h \ scsi_aha154x.o: ibm.h io.h mca.h mem.h mca.h rom.h dma.h pic.h timer.h \
device.h cdrom.h scsi.h scsi_disk.h scsi_aha154x.h \ device.h cdrom.h scsi.h scsi_disk.h scsi_aha154x.h \
scsi_buslogic.o: ibm.h io.h mem.h rom.h dma.h pic.h pci.h timer.h \ scsi_buslogic.o: ibm.h io.h mem.h rom.h dma.h pic.h pci.h timer.h \
device.h scsi.h scsi_disk.h cdrom.h scsi_buslogic.h device.h scsi.h scsi_device.h scsi_disk.h cdrom.h \
scsi_buslogic.h
scsi_disk.o: 86box.h cdrom.h hdd_image.h ibm.h ide.h piix.h scsi.h \ scsi_disk.o: 86box.h cdrom.h hdd_image.h ibm.h ide.h piix.h scsi.h \
scsi_disk.h timer.h win/plat_iodev.h scsi_disk.h timer.h win/plat_iodev.h

130
src/scsi.c
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@@ -26,7 +26,6 @@
#include "scsi.h" #include "scsi.h"
#include "scsi_aha154x.h" #include "scsi_aha154x.h"
#include "scsi_buslogic.h" #include "scsi_buslogic.h"
#include "scsi_disk.h"
uint8_t SCSIPhase = SCSI_PHASE_BUS_FREE; uint8_t SCSIPhase = SCSI_PHASE_BUS_FREE;
@@ -161,132 +160,3 @@ void SCSIReset(uint8_t id, uint8_t lun)
SCSIDevices[id][lun].CmdBuffer = NULL; SCSIDevices[id][lun].CmdBuffer = NULL;
} }
} }
static void scsi_target_command(int lun_type, uint8_t id, uint8_t *cdb)
{
if (lun_type == SCSI_DISK)
{
SCSIPhase = SCSI_PHASE_COMMAND;
scsi_hd_command(id, cdb);
SCSIStatus = scsi_hd_err_stat_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
SCSIPhase = SCSI_PHASE_COMMAND;
cdrom_command(id, cdb);
SCSIStatus = cdrom_CDROM_PHASE_to_scsi(id);
}
else
{
SCSIStatus = SCSI_STATUS_CHECK_CONDITION;
}
}
static int scsi_target_phase_to_scsi(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
return scsi_hd_phase_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
return cdrom_atapi_phase_to_scsi(id);
}
else
{
return 0;
}
}
static void scsi_target_phase_callback(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
scsi_hd_callback(id);
}
else if (lun_type == SCSI_CDROM)
{
cdrom_phase_callback(id);
}
else
{
return;
}
}
static int scsi_target_err_stat_to_scsi(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
return scsi_hd_err_stat_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
return cdrom_CDROM_PHASE_to_scsi(id);
}
else
{
return SCSI_STATUS_CHECK_CONDITION;
}
}
static void scsi_target_save_cdb_byte(int lun_type, uint8_t id, uint8_t cdb_byte)
{
if (lun_type == SCSI_DISK)
{
shdc[id].request_length = cdb_byte;
}
else if (lun_type == SCSI_CDROM)
{
cdrom[id].request_length = cdb_byte;
}
else
{
return;
}
}
void scsi_command(int cdb_len, int lun_type, uint8_t id, uint8_t *cdb)
{
uint8_t phase = 0;
/*
* Since that field in the target struct is never used when
* the bus type is SCSI, let's use it for this scope.
*/
scsi_target_save_cdb_byte(lun_type, id, cdb[1]);
if (cdb_len != 12) {
/*
* Make sure the LUN field of the temporary CDB is always 0,
* otherwise Daemon Tools drives will misbehave when a command
* is passed through to them.
*/
cdb[1] &= 0x1f;
}
/* Finally, execute the SCSI command immediately and get the transfer length. */
scsi_target_command(lun_type, id, cdb);
if (SCSIStatus == SCSI_STATUS_OK) {
phase = scsi_target_phase_to_scsi(lun_type, id);
if (phase == 2) {
/* Command completed - call the phase callback to complete the command. */
scsi_target_phase_callback(lun_type, id);
} else {
/* Command first phase complete - call the callback to execute the second phase. */
scsi_target_phase_callback(lun_type, id);
SCSIStatus = scsi_target_err_stat_to_scsi(lun_type, id);
/* Command second phase complete - call the callback to complete the command. */
scsi_target_phase_callback(lun_type, id);
}
} else {
/* Error (Check Condition) - call the phase callback to complete the command. */
scsi_target_phase_callback(lun_type, id);
}
}

2
src/scsi.h
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@@ -266,8 +266,6 @@ int scsi_card_get_from_internal_name(char *s);
void scsi_card_init(); void scsi_card_init();
void scsi_card_reset(void); void scsi_card_reset(void);
void scsi_command(int cdb_len, int lun_type, uint8_t id, uint8_t *cdb);
extern uint8_t scsi_hard_disks[16][8]; extern uint8_t scsi_hard_disks[16][8];
int scsi_hd_err_stat_to_scsi(uint8_t id); int scsi_hd_err_stat_to_scsi(uint8_t id);

334
src/scsi_buslogic.c
View File

@@ -34,6 +34,7 @@
#include "timer.h" #include "timer.h"
#include "device.h" #include "device.h"
#include "scsi.h" #include "scsi.h"
#include "scsi_device.h"
#include "scsi_disk.h" #include "scsi_disk.h"
#include "cdrom.h" #include "cdrom.h"
#include "scsi_buslogic.h" #include "scsi_buslogic.h"
@@ -1107,10 +1108,8 @@ static void
BuslogicSCSIBIOSRequestSetup(Buslogic_t *bl, uint8_t *CmdBuf, uint8_t *DataInBuf, uint8_t DataReply) BuslogicSCSIBIOSRequestSetup(Buslogic_t *bl, uint8_t *CmdBuf, uint8_t *DataInBuf, uint8_t DataReply)
{ {
ESCMD *ESCSICmd = (ESCMD *)CmdBuf; ESCMD *ESCSICmd = (ESCMD *)CmdBuf;
uint8_t hdc_id, cdrom_id;
uint32_t i; uint32_t i;
uint8_t temp_cdb[12]; uint8_t temp_cdb[12];
int lun_type = 0;
int target_cdb_len = 12; int target_cdb_len = 12;
uint8_t target_id = 0; uint8_t target_id = 0;
@@ -1146,24 +1145,9 @@ BuslogicSCSIBIOSRequestSetup(Buslogic_t *bl, uint8_t *CmdBuf, uint8_t *DataInBuf
} }
} }
lun_type = SCSIDevices[ESCSICmd->TargetId][ESCSICmd->LogicalUnit].LunType; target_cdb_len = scsi_device_cdb_length(ESCSICmd->TargetId, ESCSICmd->LogicalUnit);
hdc_id = scsi_hard_disks[ESCSICmd->TargetId][ESCSICmd->LogicalUnit]; if (!scsi_device_valid(ESCSICmd->TargetId, ESCSICmd->LogicalUnit)) fatal("SCSI target on %02i:%02i has disappeared\n", ESCSICmd->TargetId, ESCSICmd->LogicalUnit);
cdrom_id = scsi_cdrom_drives[ESCSICmd->TargetId][ESCSICmd->LogicalUnit];
if (lun_type == SCSI_DISK)
{
target_id = hdc_id;
target_cdb_len = 12;
}
else if (lun_type == SCSI_CDROM)
{
target_id = cdrom_id;
target_cdb_len = cdrom[cdrom_id].cdb_len;
}
if (target_id == 0xff) fatal("SCSI target on %02i:%02i has disappeared\n", ESCSICmd->TargetId, ESCSICmd->LogicalUnit);
SpecificLog("SCSI target command being executed on: SCSI ID %i, SCSI LUN %i, Target %i\n", ESCSICmd->TargetId, ESCSICmd->LogicalUnit, target_id); SpecificLog("SCSI target command being executed on: SCSI ID %i, SCSI LUN %i, Target %i\n", ESCSICmd->TargetId, ESCSICmd->LogicalUnit, target_id);
@@ -1179,7 +1163,7 @@ BuslogicSCSIBIOSRequestSetup(Buslogic_t *bl, uint8_t *CmdBuf, uint8_t *DataInBuf
memcpy(temp_cdb, ESCSICmd->CDB, target_cdb_len); memcpy(temp_cdb, ESCSICmd->CDB, target_cdb_len);
} }
scsi_command(ESCSICmd->CDBLength, lun_type, target_id, temp_cdb); scsi_device_command(ESCSICmd->CDBLength, ESCSICmd->TargetId, ESCSICmd->LogicalUnit, temp_cdb);
BuslogicSCSIBIOSDataBufferFree(ESCSICmd, ESCSICmd->TargetId, ESCSICmd->LogicalUnit); BuslogicSCSIBIOSDataBufferFree(ESCSICmd, ESCSICmd->TargetId, ESCSICmd->LogicalUnit);
/* BuslogicSCSIBIOSSenseBufferFree(ESCSICmd, Id, Lun, (SCSIStatus != SCSI_STATUS_OK), 1); */ /* BuslogicSCSIBIOSSenseBufferFree(ESCSICmd, Id, Lun, (SCSIStatus != SCSI_STATUS_OK), 1); */
@@ -1235,7 +1219,7 @@ static uint8_t BuslogicCompletionCode(uint8_t *sense)
} }
} }
uint8_t BuslogicBIOSCommand08(uint8_t id, uint8_t *buffer, int lun_type) uint8_t BuslogicBIOSCommand08(uint8_t id, uint8_t lun, uint8_t *buffer)
{ {
uint32_t len = 0; uint32_t len = 0;
uint8_t cdb[12] = { GPCMD_READ_CDROM_CAPACITY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; uint8_t cdb[12] = { GPCMD_READ_CDROM_CAPACITY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
@@ -1244,16 +1228,8 @@ uint8_t BuslogicBIOSCommand08(uint8_t id, uint8_t *buffer, int lun_type)
int i = 0; int i = 0;
uint8_t sc = 0; uint8_t sc = 0;
if (lun_type == SCSI_CDROM) ret = scsi_device_read_capacity(id, lun, cdb, rcbuf, &len);
{ sc = BuslogicCompletionCode(scsi_device_sense(id, lun));
ret = cdrom_read_capacity(id, cdb, rcbuf, &len);
sc = BuslogicCompletionCode(cdrom[id].sense);
}
else
{
ret = scsi_hd_read_capacity(id, cdb, rcbuf, &len);
sc = BuslogicCompletionCode(shdc[id].sense);
}
if (ret == 0) if (ret == 0)
{ {
@@ -1277,7 +1253,7 @@ uint8_t BuslogicBIOSCommand08(uint8_t id, uint8_t *buffer, int lun_type)
return 0; return 0;
} }
int BuslogicBIOSCommand15(uint8_t id, uint8_t *buffer, int lun_type) int BuslogicBIOSCommand15(uint8_t id, uint8_t lun, uint8_t *buffer)
{ {
uint32_t len = 0; uint32_t len = 0;
uint8_t cdb[12] = { GPCMD_READ_CDROM_CAPACITY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; uint8_t cdb[12] = { GPCMD_READ_CDROM_CAPACITY, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
@@ -1286,16 +1262,8 @@ int BuslogicBIOSCommand15(uint8_t id, uint8_t *buffer, int lun_type)
int i = 0; int i = 0;
uint8_t sc = 0; uint8_t sc = 0;
if (lun_type == SCSI_CDROM) ret = scsi_device_read_capacity(id, lun, cdb, rcbuf, &len);
{ sc = BuslogicCompletionCode(scsi_device_sense(id, lun));
ret = cdrom_read_capacity(id, cdb, rcbuf, &len);
sc = BuslogicCompletionCode(cdrom[id].sense);
}
else
{
ret = scsi_hd_read_capacity(id, cdb, rcbuf, &len);
sc = BuslogicCompletionCode(shdc[id].sense);
}
memset(buffer, 0, 6); memset(buffer, 0, 6);
@@ -1304,94 +1272,18 @@ int BuslogicBIOSCommand15(uint8_t id, uint8_t *buffer, int lun_type)
buffer[i] = (ret == 0) ? 0 : rcbuf[i]; buffer[i] = (ret == 0) ? 0 : rcbuf[i];
} }
buffer[4] = (lun_type == SCSI_CDROM) ? 5 : 0; scsi_device_type_data(id, lun, &(buffer[4]), &(buffer[5]));
if (lun_type == SCSI_CDROM)
{
buffer[5] = 0x80;
}
else
{
buffer[5] = (hdc[id].bus == HDD_BUS_SCSI_REMOVABLE) ? 0x80 : 0x00;
}
SpecificLog("BIOS Command 0x15: %02X %02X %02X %02X %02X %02X\n", buffer[0], buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]); SpecificLog("BIOS Command 0x15: %02X %02X %02X %02X %02X %02X\n", buffer[0], buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]);
return sc; return sc;
} }
static void BuslogicSCSICDROMPhaseHandler(uint8_t id) static void BuslogicIDCheck(uint8_t id, uint8_t lun)
{ {
int phase = 0; if (!scsi_device_valid(id, lun))
SCSIStatus = cdrom_CDROM_PHASE_to_scsi(id);
if (SCSIStatus == SCSI_STATUS_OK)
{ {
phase = cdrom_atapi_phase_to_scsi(id); fatal("BIOS INT13 CD-ROM on %02i:%02i has disappeared\n", id, lun);
if (phase == 2)
{
/* Command completed - call the phase callback to complete the command. */
cdrom_phase_callback(id);
}
else
{
/* Command first phase complete - call the callback to execute the second phase. */
cdrom_phase_callback(id);
SCSIStatus = cdrom_CDROM_PHASE_to_scsi(id);
/* Command second phase complete - call the callback to complete the command. */
cdrom_phase_callback(id);
}
}
else
{
/* Error (Check Condition) - call the phase callback to complete the command. */
cdrom_phase_callback(id);
}
}
static void BuslogicSCSIDiskPhaseHandler(uint8_t hdc_id)
{
int phase = 0;
SCSIStatus = scsi_hd_err_stat_to_scsi(hdc_id);
if (SCSIStatus == SCSI_STATUS_OK)
{
phase = scsi_hd_phase_to_scsi(hdc_id);
if (phase == 2)
{
/* Command completed - call the phase callback to complete the command. */
scsi_hd_callback(hdc_id);
}
else
{
/* Command first phase complete - call the callback to execute the second phase. */
scsi_hd_callback(hdc_id);
SCSIStatus = scsi_hd_err_stat_to_scsi(hdc_id);
/* Command second phase complete - call the callback to complete the command. */
scsi_hd_callback(hdc_id);
}
}
else
{
/* Error (Check Condition) - call the phase callback to complete the command. */
scsi_hd_callback(hdc_id);
}
}
static void BuslogicIDCheck(int lun_type, uint8_t cdrom_id, uint8_t hdc_id, BIOSCMD *BiosCmd)
{
if (lun_type == SCSI_CDROM)
{
if (cdrom_id == 0xff)
{
fatal("BIOS INT13 CD-ROM on %02i:%02i has disappeared\n", BiosCmd->id, BiosCmd->lun);
}
}
else
{
if (hdc_id == 0xff)
{
fatal("BIOS INT13 hard disk on %02i:%02i has disappeared\n", BiosCmd->id, BiosCmd->lun);
}
} }
} }
@@ -1399,11 +1291,9 @@ static void BuslogicIDCheck(int lun_type, uint8_t cdrom_id, uint8_t hdc_id, BIOS
uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd) uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
{ {
uint32_t dma_address; uint32_t dma_address;
uint8_t cdrom_id, hdc_id;
int lba = (BiosCmd->cylinder << 9) + (BiosCmd->head << 5) + BiosCmd->sector; int lba = (BiosCmd->cylinder << 9) + (BiosCmd->head << 5) + BiosCmd->sector;
int sector_len = BiosCmd->secount; int sector_len = BiosCmd->secount;
int block_shift = 9; int block_shift = 9;
int lun_type = SCSI_NONE;
uint8_t ret = 0; uint8_t ret = 0;
uint8_t cdb[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; uint8_t cdb[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
@@ -1413,14 +1303,9 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
return 0x80; return 0x80;
} }
lun_type = SCSIDevices[BiosCmd->id][BiosCmd->lun].LunType;
cdrom_id = scsi_cdrom_drives[BiosCmd->id][BiosCmd->lun];
hdc_id = scsi_hard_disks[BiosCmd->id][BiosCmd->lun];
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 0; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 0;
if (lun_type == SCSI_NONE) if (!scsi_device_present(BiosCmd->id, BiosCmd->lun))
{ {
SpecificLog("BIOS Target ID %i and LUN %i have no device attached\n",BiosCmd->id,BiosCmd->lun); SpecificLog("BIOS Target ID %i and LUN %i have no device attached\n",BiosCmd->id,BiosCmd->lun);
return 0x80; return 0x80;
@@ -1436,6 +1321,8 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL; SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL;
} }
block_shift = scsi_device_block_shift(BiosCmd->id, BiosCmd->lun);
switch(BiosCmd->command) switch(BiosCmd->command)
{ {
case 0x00: /* Reset Disk System, in practice it's a nop */ case 0x00: /* Reset Disk System, in practice it's a nop */
@@ -1444,7 +1331,7 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
break; break;
case 0x01: /* Read Status of Last Operation */ case 0x01: /* Read Status of Last Operation */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
/* Assuming 14 bytes because that's the default length for SCSI sense, and no command-specific /* Assuming 14 bytes because that's the default length for SCSI sense, and no command-specific
indication is given. */ indication is given. */
@@ -1453,19 +1340,12 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(14); SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(14);
memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 14); memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 14);
SCSIStatus = BuslogicBIOSCommand08((lun_type == SCSI_CDROM) ? cdrom_id : hdc_id, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, lun_type) ? SCSI_STATUS_OK : SCSI_STATUS_CHECK_CONDITION; /* SCSIStatus = BuslogicBIOSCommand08(BiosCmd->id, BiosCmd->lun, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer) ? SCSI_STATUS_OK : SCSI_STATUS_CHECK_CONDITION; */
if (sector_len > 0) if (sector_len > 0)
{ {
SpecificLog("BusLogic BIOS DMA: Reading 14 bytes at %08X\n", dma_address); SpecificLog("BusLogic BIOS DMA: Reading 14 bytes at %08X\n", dma_address);
if (lun_type == SCSI_CDROM) DMAPageWrite(dma_address, (char *)scsi_device_sense(BiosCmd->id, BiosCmd->lun), 14);
{
DMAPageWrite(dma_address, (char *)cdrom[cdrom_id].sense, 14);
}
else
{
DMAPageWrite(dma_address, (char *)shdc[hdc_id].sense, 14);
}
} }
if (SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer != NULL) if (SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer != NULL)
@@ -1474,17 +1354,12 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL; SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL;
} }
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return 0;
break; break;
case 0x02: /* Read Desired Sectors to Memory */ case 0x02: /* Read Desired Sectors to Memory */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
if (lun_type == SCSI_CDROM)
{
block_shift = 11;
}
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift;
@@ -1492,6 +1367,7 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, sector_len << block_shift); memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, sector_len << block_shift);
cdb[0] = GPCMD_READ_10; cdb[0] = GPCMD_READ_10;
cdb[1] = (BiosCmd->lun & 7) << 5;
cdb[2] = (lba >> 24) & 0xff; cdb[2] = (lba >> 24) & 0xff;
cdb[3] = (lba >> 16) & 0xff; cdb[3] = (lba >> 16) & 0xff;
cdb[4] = (lba >> 8) & 0xff; cdb[4] = (lba >> 8) & 0xff;
@@ -1499,18 +1375,7 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
cdb[7] = (sector_len >> 8) & 0xff; cdb[7] = (sector_len >> 8) & 0xff;
cdb[8] = sector_len & 0xff; cdb[8] = sector_len & 0xff;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
if (sector_len > 0) if (sector_len > 0)
{ {
@@ -1524,17 +1389,12 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL; SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL;
} }
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
case 0x03: /* Write Desired Sectors from Memory */ case 0x03: /* Write Desired Sectors from Memory */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
if (lun_type == SCSI_CDROM)
{
block_shift = 11;
}
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift;
@@ -1548,6 +1408,7 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
} }
cdb[0] = GPCMD_WRITE_10; cdb[0] = GPCMD_WRITE_10;
cdb[1] = (BiosCmd->lun & 7) << 5;
cdb[2] = (lba >> 24) & 0xff; cdb[2] = (lba >> 24) & 0xff;
cdb[3] = (lba >> 16) & 0xff; cdb[3] = (lba >> 16) & 0xff;
cdb[4] = (lba >> 8) & 0xff; cdb[4] = (lba >> 8) & 0xff;
@@ -1555,18 +1416,7 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
cdb[7] = (sector_len >> 8) & 0xff; cdb[7] = (sector_len >> 8) & 0xff;
cdb[8] = sector_len & 0xff; cdb[8] = sector_len & 0xff;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
if (SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer != NULL) if (SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer != NULL)
{ {
@@ -1574,19 +1424,15 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL; SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = NULL;
} }
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
case 0x04: /* Verify Desired Sectors */ case 0x04: /* Verify Desired Sectors */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
if (lun_type == SCSI_CDROM)
{
block_shift = 11;
}
cdb[0] = GPCMD_VERIFY_10; cdb[0] = GPCMD_VERIFY_10;
cdb[1] = (BiosCmd->lun & 7) << 5;
cdb[2] = (lba >> 24) & 0xff; cdb[2] = (lba >> 24) & 0xff;
cdb[3] = (lba >> 16) & 0xff; cdb[3] = (lba >> 16) & 0xff;
cdb[4] = (lba >> 8) & 0xff; cdb[4] = (lba >> 8) & 0xff;
@@ -1594,20 +1440,9 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
cdb[7] = (sector_len >> 8) & 0xff; cdb[7] = (sector_len >> 8) & 0xff;
cdb[8] = sector_len & 0xff; cdb[8] = sector_len & 0xff;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
@@ -1622,36 +1457,26 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
break; break;
case 0x07: /* Format Unit */ case 0x07: /* Format Unit */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
cdb[0] = GPCMD_FORMAT_UNIT; cdb[0] = GPCMD_FORMAT_UNIT;
cdb[1] = (BiosCmd->lun & 7) << 5;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
case 0x08: /* Read Drive Parameters */ case 0x08: /* Read Drive Parameters */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 6; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 6;
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(6); SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(6);
memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 6); memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 6);
ret = BuslogicBIOSCommand08((lun_type == SCSI_CDROM) ? cdrom_id : hdc_id, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, lun_type); ret = BuslogicBIOSCommand08(BiosCmd->id, BiosCmd->lun, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer);
SpecificLog("BusLogic BIOS DMA: Reading 6 bytes at %08X\n", dma_address); SpecificLog("BusLogic BIOS DMA: Reading 6 bytes at %08X\n", dma_address);
DMAPageWrite(dma_address, (char *)SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 6); DMAPageWrite(dma_address, (char *)SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 6);
@@ -1672,28 +1497,18 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
break; break;
case 0x0C: /* Seek */ case 0x0C: /* Seek */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = sector_len << block_shift;
cdb[0] = GPCMD_SEEK_10; cdb[0] = GPCMD_SEEK_10;
cdb[1] = (BiosCmd->lun & 7) << 5;
cdb[2] = (lba >> 24) & 0xff; cdb[2] = (lba >> 24) & 0xff;
cdb[3] = (lba >> 16) & 0xff; cdb[3] = (lba >> 16) & 0xff;
cdb[4] = (lba >> 8) & 0xff; cdb[4] = (lba >> 8) & 0xff;
cdb[5] = lba & 0xff; cdb[5] = lba & 0xff;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
return (SCSIStatus == SCSI_STATUS_OK) ? 1 : 0; return (SCSIStatus == SCSI_STATUS_OK) ? 1 : 0;
@@ -1705,46 +1520,26 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
break; break;
case 0x10: /* Test Drive Ready */ case 0x10: /* Test Drive Ready */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
cdb[0] = GPCMD_TEST_UNIT_READY; cdb[0] = GPCMD_TEST_UNIT_READY;
cdb[1] = (BiosCmd->lun & 7) << 5;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
case 0x11: /* Recalibrate */ case 0x11: /* Recalibrate */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
cdb[0] = GPCMD_REZERO_UNIT; cdb[0] = GPCMD_REZERO_UNIT;
cdb[1] = (BiosCmd->lun & 7) << 5;
if (lun_type == SCSI_CDROM) scsi_device_command(12, BiosCmd->id, BiosCmd->lun, cdb);
{
cdrom[cdrom_id].request_length = (BiosCmd->lun & 7) << 5;
cdrom_command(cdrom_id, cdb);
BuslogicSCSICDROMPhaseHandler(cdrom_id);
}
else
{
shdc[hdc_id].request_length = (BiosCmd->lun & 7) << 5;
scsi_hd_command(hdc_id, cdb);
BuslogicSCSIDiskPhaseHandler(hdc_id);
}
return BuslogicCompletionCode((lun_type == SCSI_CDROM) ? cdrom[cdrom_id].sense : shdc[hdc_id].sense); return BuslogicCompletionCode(scsi_device_sense(BiosCmd->id, BiosCmd->lun));
break; break;
@@ -1754,14 +1549,14 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
break; break;
case 0x15: /* Read DASD Type */ case 0x15: /* Read DASD Type */
BuslogicIDCheck(lun_type, cdrom_id, hdc_id, BiosCmd); BuslogicIDCheck(BiosCmd->id, BiosCmd->lun);
SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 6; SCSIDevices[BiosCmd->id][BiosCmd->lun].InitLength = 6;
SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(6); SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer = (uint8_t *) malloc(6);
memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 6); memset(SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 0, 6);
ret = BuslogicBIOSCommand15((lun_type == SCSI_CDROM) ? cdrom_id : hdc_id, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, lun_type); ret = BuslogicBIOSCommand15(BiosCmd->id, BiosCmd->lun, SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer);
SpecificLog("BusLogic BIOS DMA: Reading 6 bytes at %08X\n", dma_address); SpecificLog("BusLogic BIOS DMA: Reading 6 bytes at %08X\n", dma_address);
DMAPageWrite(dma_address, (char *)SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 6); DMAPageWrite(dma_address, (char *)SCSIDevices[BiosCmd->id][BiosCmd->lun].CmdBuffer, 6);
@@ -2532,33 +2327,18 @@ BuslogicSCSICommand(Buslogic_t *bl)
{ {
Req_t *req = &bl->Req; Req_t *req = &bl->Req;
uint8_t Id, Lun; uint8_t Id, Lun;
uint8_t hdc_id, cdrom_id;
uint8_t temp_cdb[12]; uint8_t temp_cdb[12];
uint32_t i; uint32_t i;
int lun_type = SCSI_NONE;
uint8_t target_id = 0;
int target_cdb_len = 12; int target_cdb_len = 12;
Id = req->TargetID; Id = req->TargetID;
Lun = req->LUN; Lun = req->LUN;
lun_type = SCSIDevices[Id][Lun].LunType;
hdc_id = scsi_hard_disks[Id][Lun];
cdrom_id = scsi_cdrom_drives[Id][Lun];
if (lun_type == SCSI_DISK) target_cdb_len = scsi_device_cdb_length(Id, Lun);
{
target_id = hdc_id;
target_cdb_len = 12;
}
else if (lun_type == SCSI_CDROM)
{
target_id = cdrom_id;
target_cdb_len = cdrom[cdrom_id].cdb_len;
}
if (target_id == 0xff) fatal("Target on %02i:%02i has disappeared\n", Id, Lun); if (!scsi_device_valid(Id, Lun)) fatal("Target on %02i:%02i has disappeared\n", Id, Lun);
pclog("Target command being executed on: SCSI ID %i, SCSI LUN %i, CD-ROM %i\n", Id, Lun, cdrom_id); pclog("Target command being executed on: SCSI ID %i, SCSI LUN %i\n", Id, Lun);
pclog("SCSI Cdb[0]=0x%02X\n", req->CmdBlock.common.Cdb[0]); pclog("SCSI Cdb[0]=0x%02X\n", req->CmdBlock.common.Cdb[0]);
for (i = 1; i < req->CmdBlock.common.CdbLength; i++) { for (i = 1; i < req->CmdBlock.common.CdbLength; i++) {
@@ -2573,7 +2353,7 @@ BuslogicSCSICommand(Buslogic_t *bl)
memcpy(temp_cdb, req->CmdBlock.common.Cdb, target_cdb_len); memcpy(temp_cdb, req->CmdBlock.common.Cdb, target_cdb_len);
} }
scsi_command(req->CmdBlock.common.CdbLength, SCSIDevices[Id][Lun].LunType, target_id, temp_cdb); scsi_device_command(req->CmdBlock.common.CdbLength, Id, Lun, temp_cdb);
BuslogicDataBufferFree(req); BuslogicDataBufferFree(req);
@@ -2620,7 +2400,7 @@ BuslogicSCSIRequestSetup(Buslogic_t *bl, uint32_t CCBPointer, Mailbox32_t *Mailb
BuslogicDataBufferAllocate(req, req->Is24bit); BuslogicDataBufferAllocate(req, req->Is24bit);
if (SCSIDevices[Id][Lun].LunType == SCSI_NONE) { if (!scsi_device_present(Id, Lun)) {
pclog("SCSI Target ID %i and LUN %i have no device attached\n",Id,Lun); pclog("SCSI Target ID %i and LUN %i have no device attached\n",Id,Lun);
BuslogicDataBufferFree(req); BuslogicDataBufferFree(req);
BuslogicSenseBufferFree(req, 0, 0); BuslogicSenseBufferFree(req, 0, 0);

285
src/scsi_device.c Normal file
View File

@@ -0,0 +1,285 @@
#include "ibm.h"
#include "scsi.h"
#include "scsi_disk.h"
#include "cdrom.h"
static uint8_t scsi_null_device_sense[14] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
static void scsi_device_target_command(int lun_type, uint8_t id, uint8_t *cdb)
{
if (lun_type == SCSI_DISK)
{
SCSIPhase = SCSI_PHASE_COMMAND;
scsi_hd_command(id, cdb);
SCSIStatus = scsi_hd_err_stat_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
SCSIPhase = SCSI_PHASE_COMMAND;
cdrom_command(id, cdb);
SCSIStatus = cdrom_CDROM_PHASE_to_scsi(id);
}
else
{
SCSIStatus = SCSI_STATUS_CHECK_CONDITION;
}
}
static int scsi_device_target_phase_to_scsi(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
return scsi_hd_phase_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
return cdrom_atapi_phase_to_scsi(id);
}
else
{
return 0;
}
}
static void scsi_device_target_phase_callback(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
scsi_hd_callback(id);
}
else if (lun_type == SCSI_CDROM)
{
cdrom_phase_callback(id);
}
else
{
return;
}
}
static int scsi_device_target_err_stat_to_scsi(int lun_type, uint8_t id)
{
if (lun_type == SCSI_DISK)
{
return scsi_hd_err_stat_to_scsi(id);
}
else if (lun_type == SCSI_CDROM)
{
return cdrom_CDROM_PHASE_to_scsi(id);
}
else
{
return SCSI_STATUS_CHECK_CONDITION;
}
}
static void scsi_device_target_save_cdb_byte(int lun_type, uint8_t id, uint8_t cdb_byte)
{
if (lun_type == SCSI_DISK)
{
shdc[id].request_length = cdb_byte;
}
else if (lun_type == SCSI_CDROM)
{
cdrom[id].request_length = cdb_byte;
}
else
{
return;
}
}
uint8_t *scsi_device_sense(uint8_t scsi_id, uint8_t scsi_lun)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_DISK:
id = scsi_hard_disks[scsi_id][scsi_lun];
return shdc[id].sense;
break;
case SCSI_CDROM:
id = scsi_cdrom_drives[scsi_id][scsi_lun];
return cdrom[id].sense;
break;
default:
return scsi_null_device_sense;
break;
}
}
void scsi_device_type_data(uint8_t scsi_id, uint8_t scsi_lun, uint8_t *type, uint8_t *rmb)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_DISK:
id = scsi_hard_disks[scsi_id][scsi_lun];
*type = 0x00;
*rmb = (hdc[id].bus == HDD_BUS_SCSI_REMOVABLE) ? 0x80 : 0x00;
break;
case SCSI_CDROM:
*type = 0x05;
*rmb = 0x80;
break;
default:
*type = *rmb = 0xFF;
break;
}
}
int scsi_device_read_capacity(uint8_t scsi_id, uint8_t scsi_lun, uint8_t *cdb, uint8_t *buffer, uint32_t *len)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_DISK:
id = scsi_hard_disks[scsi_id][scsi_lun];
return scsi_hd_read_capacity(id, cdb, buffer, len);
case SCSI_CDROM:
id = scsi_hard_disks[scsi_id][scsi_lun];
return cdrom_read_capacity(id, cdb, buffer, len);
default:
return 0;
}
}
int scsi_device_present(uint8_t scsi_id, uint8_t scsi_lun)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
switch (lun_type)
{
case SCSI_NONE:
return 0;
default:
return 1;
}
}
int scsi_device_valid(uint8_t scsi_id, uint8_t scsi_lun)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_DISK:
id = scsi_hard_disks[scsi_id][scsi_lun];
break;
case SCSI_CDROM:
id = scsi_cdrom_drives[scsi_id][scsi_lun];
break;
default:
id = 0;
break;
}
return (id == 0xFF) ? 0 : 1;
}
int scsi_device_cdb_length(uint8_t scsi_id, uint8_t scsi_lun)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_CDROM:
id = scsi_cdrom_drives[scsi_id][scsi_lun];
return cdrom[id].cdb_len;
default:
return 12;
}
}
int scsi_device_block_shift(uint8_t scsi_id, uint8_t scsi_lun)
{
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
switch (lun_type)
{
case SCSI_CDROM:
return 11; /* 2048 bytes per block */
default:
return 9; /* 512 bytes per block */
}
}
void scsi_device_command(int cdb_len, uint8_t scsi_id, uint8_t scsi_lun, uint8_t *cdb)
{
uint8_t phase = 0;
uint8_t lun_type = SCSIDevices[scsi_id][scsi_lun].LunType;
uint8_t id = 0;
switch (lun_type)
{
case SCSI_DISK:
id = scsi_hard_disks[scsi_id][scsi_lun];
break;
case SCSI_CDROM:
id = scsi_cdrom_drives[scsi_id][scsi_lun];
break;
default:
id = 0;
break;
}
/*
* Since that field in the target struct is never used when
* the bus type is SCSI, let's use it for this scope.
*/
scsi_device_target_save_cdb_byte(lun_type, id, cdb[1]);
if (cdb_len != 12) {
/*
* Make sure the LUN field of the temporary CDB is always 0,
* otherwise Daemon Tools drives will misbehave when a command
* is passed through to them.
*/
cdb[1] &= 0x1f;
}
/* Finally, execute the SCSI command immediately and get the transfer length. */
scsi_device_target_command(lun_type, id, cdb);
if (SCSIStatus == SCSI_STATUS_OK) {
phase = scsi_device_target_phase_to_scsi(lun_type, id);
if (phase == 2) {
/* Command completed - call the phase callback to complete the command. */
scsi_device_target_phase_callback(lun_type, id);
} else {
/* Command first phase complete - call the callback to execute the second phase. */
scsi_device_target_phase_callback(lun_type, id);
SCSIStatus = scsi_device_target_err_stat_to_scsi(lun_type, id);
/* Command second phase complete - call the callback to complete the command. */
scsi_device_target_phase_callback(lun_type, id);
}
} else {
/* Error (Check Condition) - call the phase callback to complete the command. */
scsi_device_target_phase_callback(lun_type, id);
}
}

8
src/scsi_device.h Normal file
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@@ -0,0 +1,8 @@
uint8_t *scsi_device_sense(uint8_t scsi_id, uint8_t scsi_lun);
void scsi_device_type_data(uint8_t scsi_id, uint8_t scsi_lun, uint8_t *type, uint8_t *rmb);
int scsi_device_read_capacity(uint8_t scsi_id, uint8_t scsi_lun, uint8_t *cdb, uint8_t *buffer, uint32_t *len);
int scsi_device_present(uint8_t scsi_id, uint8_t scsi_lun);
int scsi_device_valid(uint8_t scsi_id, uint8_t scsi_lun);
int scsi_device_cdb_length(uint8_t scsi_id, uint8_t scsi_lun);
int scsi_device_block_shift(uint8_t scsi_id, uint8_t scsi_lun);
void scsi_device_command(int cdb_len, uint8_t scsi_id, uint8_t scsi_lun, uint8_t *cdb);