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USB: Add new SCSI commands used by Zip100

This commit is contained in:
Florin9doi 2024-07-24 02:29:18 +03:00 committed by Ty
parent 5a35afadd7
commit 51019dc456
1 changed files with 63 additions and 30 deletions
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91
pcsx2/USB/usb-msd/usb-msd.cpp
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@ -188,6 +188,7 @@ namespace usb_msd
#define SEND_DIAGNOSTIC 0x1d
#define ALLOW_MEDIUM_REMOVAL 0x1e
#define READ_FORMAT_CAPACITIES 0x23
#define SET_WINDOW 0x24
#define READ_CAPACITY_10 0x25
#define READ_10 0x28
@ -333,6 +334,9 @@ namespace usb_msd
const struct SCSISense sense_code_OUT_OF_RANGE = {
ILLEGAL_REQUEST, 0x21, 0x00};
const struct SCSISense sense_code_UNIT_ATTENTION = {
UNIT_ATTENTION, 0x28, 0x00};
/* Illegal request, Invalid Transfer Tag */
//const struct SCSISense sense_code_INVALID_TAG = {
// .key = ILLEGAL_REQUEST, .asc = 0x4b, .ascq = 0x01
@ -461,12 +465,8 @@ namespace usb_msd
static void usb_msd_copy_data(MSDState* s, USBPacket* p)
{
size_t len, file_ret;
len = p->buffer_size - p->actual_length;
//if (len > s->scsi_len)
// len = s->scsi_len;
if (len > sizeof(s->f.buf))
len = sizeof(s->f.buf);
len = std::min<size_t>(p->buffer_size - p->actual_length, sizeof(s->f.buf));
len = std::min<size_t>(len, s->f.data_len);
//TODO No async reader/writer so do it right here
if (s->f.tag == s->f.file_op_tag)
@ -513,6 +513,9 @@ namespace usb_msd
{
int64_t lba;
uint32_t xfer_len;
int64_t lbas;
uint32_t *last_lba, *blk_len;
s->f.last_cmd = cbw->cmd[0];
s->f.result = COMMAND_PASSED;
@ -528,26 +531,69 @@ namespace usb_msd
//s->f.result = COMMAND_FAILED;
//set_sense(s, SENSE_CODE(LUN_NOT_READY));
break;
case REQUEST_SENSE: //device shall keep old sense data
memcpy(s->f.buf, s->f.sense_buf,
/* XXX the UFI device shall return only the number of bytes requested, as is */
cbw->cmd[4] < sizeof(s->f.sense_buf) ? (size_t)cbw->cmd[4] : sizeof(s->f.sense_buf));
memcpy(s->f.buf, s->f.sense_buf, std::min<size_t>(cbw->cmd[4], sizeof(s->f.sense_buf)));
break;
case INQUIRY:
memset(s->f.buf, 0, sizeof(s->f.buf));
s->f.buf[0] = 0; // SCSI Peripheral Device Type: 0x0 - direct access device, 0x1f - unknown/no device
s->f.buf[1] = 1 << 7; //removable
s->f.buf[3] = 1; //UFI response data format
s->f.buf[1] = 1 << 7; // Removable
s->f.buf[2] = 0x02; // Version
s->f.buf[3] = 0x02; // UFI response data format
//inq data len can be zero
strncpy((char*)&s->f.buf[8], "IOMEGA ", 8); //8 bytes vendor
strncpy((char*)&s->f.buf[16], "ZIP 100 ", 16); //16 bytes product
strncpy((char*)&s->f.buf[32], "E.08", 4); //4 bytes product revision
set_sense(s, SENSE_CODE(UNIT_ATTENTION));
break;
case MODE_SENSE:
memset(s->f.buf, 0, sizeof(s->f.buf));
s->f.buf[0] = cbw->cmd[4] - 1;
break;
case START_STOP:
memset(s->f.buf, 0, sizeof(s->f.buf));
break;
case ALLOW_MEDIUM_REMOVAL:
memset(s->f.buf, 0, sizeof(s->f.buf));
break;
case READ_FORMAT_CAPACITIES:
memset(s->f.buf, 0, sizeof(s->f.buf));
if (s->file_size == 0)
{
s->f.result = COMMAND_FAILED;
set_sense(s, SENSE_CODE(UNKNOWN_ERROR));
break;
}
last_lba = (uint32_t*)&s->f.buf[4];
blk_len = (uint32_t*)&s->f.buf[8];
*blk_len = LBA_BLOCK_SIZE;
lbas = s->file_size / LBA_BLOCK_SIZE;
if (lbas > 0xFFFFFFFF)
{
s->f.result = COMMAND_FAILED;
set_sense(s, SENSE_CODE(OUT_OF_RANGE));
*last_lba = 0xFFFFFFFF;
}
else
*last_lba = static_cast<uint32_t>(lbas);
*last_lba = bswap32(*last_lba);
*blk_len = bswap32(*blk_len);
s->f.buf[3] = 0x08;
s->f.buf[8] = 0x02;
s->f.data_len = 12;
break;
case READ_CAPACITY_10:
int64_t lbas;
uint32_t *last_lba, *blk_len;
memset(s->f.buf, 0, sizeof(s->f.buf));
if (s->file_size == 0) //TODO
@ -668,6 +714,8 @@ namespace usb_msd
data[0] = 0;
p->actual_length = 1;
break;
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
break;
default:
p->status = USB_RET_STALL;
break;
@ -828,15 +876,6 @@ namespace usb_msd
break;
case USB_MSDM_DATAIN:
//if (len == 13) goto send_csw;
if (p->buffer_size > s->f.data_len)
{
//len = s->f.data_len;
s->f.result = COMMAND_FAILED;
set_sense(s, SENSE_CODE(UNRECOVERED_READ_ERROR));
goto fail;
}
//if (s->scsi_len)
{
usb_msd_copy_data(s, p);
@ -854,12 +893,6 @@ namespace usb_msd
}
}
}
if ((size_t)p->actual_length < p->buffer_size)
{
s->packet = p;
p->status = USB_RET_ASYNC;
}
break;
default: