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scsihd: Changes for MODE_SENSE_6. 

Return CHECK_CONDITION for unsupported page_ctrl or page or subpage.
Handle the all pages code 0x3F.
This commit is contained in:
joevt 2024-03-10 04:42:40 -07:00 committed by dingusdev
parent c54ec7be2d
commit 44564065f6
1 changed files with 107 additions and 31 deletions
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138
devices/common/scsi/scsihd.cpp
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@ -266,48 +266,124 @@ static char Apple_Copyright_Page_Data[] = "APPLE COMPUTER, INC ";
void ScsiHardDisk::mode_sense_6() {
uint8_t page_code = this->cmd_buf[2] & 0x3F;
uint8_t page_ctrl = this->cmd_buf[2] >> 6;
uint8_t sub_page_code = this->cmd_buf[3];
uint8_t alloc_len = this->cmd_buf[4];
this->data_buf[ 0] = 13; // initial data size
this->data_buf[ 1] = 0; // medium type
this->data_buf[ 2] = 0; // medium is write enabled
this->data_buf[ 3] = 8; // block description length
if (page_ctrl == 1) {
LOG_F(INFO, "%s: page_ctrl 1 CHANGEABLE VALUES is not implemented", this->name.c_str());
this->status = ScsiStatus::CHECK_CONDITION;
this->sense = ScsiSense::ILLEGAL_REQ;
this->asc = 0x24; // Invalid Field in CDB
this->ascq = 0;
this->sksv = 0xc0; // sksv=1, C/D=Command, BPV=0, BP=0
this->field = 2;
this->switch_phase(ScsiPhase::STATUS);
return;
}
if (page_ctrl == 2) {
LOG_F(ERROR, "%s: page_ctrl 2 DEFAULT VALUES is not implemented", this->name.c_str());
this->status = ScsiStatus::CHECK_CONDITION;
this->sense = ScsiSense::ILLEGAL_REQ;
this->asc = 0x24; // Invalid Field in CDB
this->ascq = 0;
this->sksv = 0xc0; // sksv=1, C/D=Command, BPV=0, BP=0
this->field = 2;
this->switch_phase(ScsiPhase::STATUS);
return;
}
if (page_ctrl == 3) {
LOG_F(INFO, "%s: page_ctrl 3 SAVED VALUES is not implemented", this->name.c_str());
this->status = ScsiStatus::CHECK_CONDITION;
this->sense = ScsiSense::ILLEGAL_REQ;
this->asc = 0x39; // Saving Parameters Not Supported
this->ascq = 0;
this->sksv = 0;
this->field = 0;
this->switch_phase(ScsiPhase::STATUS);
return;
}
this->data_buf[ 1] = 0; // medium type
this->data_buf[ 2] = 0; // 0:medium is not write protected; 0x80 write protected
this->data_buf[ 3] = 8; // block description length
WRITE_DWORD_BE_A(&this->data_buf[4], this->total_blocks);
WRITE_DWORD_BE_A(&this->data_buf[8], this->sector_size);
this->data_buf[12] = page_code;
uint8_t *p_buf = &this->data_buf[12];
bool got_page = false;
int page_size;
switch(page_code) {
case 1: // read-write error recovery page
this->data_buf[13] = 6; // data size - 1
std::memset(&this->data_buf[14], 0, 6);
break;
case 3: // Format device page
this->data_buf[13] = 22; // data size - 1
std::memset(&this->data_buf[14], 0, 22);
if (page_code == 1 || page_code == 0x3f) { // read-write error recovery page
if (sub_page_code != 0x00 && sub_page_code != 0xff)
goto bad_sub_page;
page_size = 8;
p_buf[0] = 1; // page code
p_buf[1] = page_size - 2; // data size - 1
std::memset(&p_buf[2], 0, 6);
p_buf += page_size;
got_page = true;
}
if (page_code == 3 || page_code == 0x3f) { // Format device page
if (sub_page_code != 0x00 && sub_page_code != 0xff)
goto bad_sub_page;
page_size = 24;
p_buf[ 0] = 3; // page code
p_buf[ 1] = page_size - 2; // data size - 1
std::memset(&p_buf[2], 0, 22);
// default values taken from Empire 540/1080S manual
this->data_buf[15] = 6; // tracks per defect zone
this->data_buf[17] = 1; // alternate sectors per zone
this->data_buf[23] = 92; // sectors per track in the outermost zone
this->data_buf[27] = 1; // interleave factor
this->data_buf[29] = 19; // track skew factor
this->data_buf[31] = 25; // cylinder skew factor
this->data_buf[32] = 0x80; // SSEC=1, HSEC=0, RMB=0, SURF=0, INS=0
WRITE_WORD_BE_U(&this->data_buf[24], 512); // bytes per sector
break;
case 0x30: // Copyright page for Apple certified drives
this->data_buf[13] = 22; // data size - 1
std::memcpy(&this->data_buf[14], Apple_Copyright_Page_Data, 22);
break;
default:
ABORT_F("%s: unsupported page %d in MODE_SENSE_6", this->name.c_str(), page_code);
};
WRITE_WORD_BE_U(&p_buf[ 2], 6); // tracks per defect zone
WRITE_WORD_BE_U(&p_buf[ 4], 1); // alternate sectors per zone
WRITE_WORD_BE_U(&p_buf[10], 92); // sectors per track in the outermost zone
WRITE_WORD_BE_U(&p_buf[12], 512); // bytes per sector
WRITE_WORD_BE_U(&p_buf[14], 1); // interleave factor
WRITE_WORD_BE_U(&p_buf[16], 19); // track skew factor
WRITE_WORD_BE_U(&p_buf[18], 25); // cylinder skew factor
p_buf[20] = 0x80; // SSEC=1, HSEC=0, RMB=0, SURF=0, INS=0
p_buf += page_size;
got_page = true;
}
if (page_code == 0x30 || page_code == 0x3f) { // Copyright page for Apple certified drives
if (sub_page_code != 0x00 && sub_page_code != 0xff)
goto bad_sub_page;
page_size = 24;
p_buf[0] = 0x30; // page code
p_buf[1] = page_size - 2; // data size - 1
std::memcpy(&p_buf[2], Apple_Copyright_Page_Data, 22);
p_buf += page_size;
got_page = true;
}
if (!(got_page || page_code == 0x3f)) { // not any of the supported pages or all pages
LOG_F(WARNING, "%s: unsupported page 0x%02x in MODE_SENSE_6", this->name.c_str(), page_code);
this->status = ScsiStatus::CHECK_CONDITION;
this->sense = ScsiSense::ILLEGAL_REQ;
this->asc = 0x24; // Invalid Field in CDB
this->ascq = 0;
this->sksv = 0xc0; // sksv=1, C/D=Command, BPV=0, BP=0
this->field = 2;
this->switch_phase(ScsiPhase::STATUS);
return;
bad_sub_page:
LOG_F(WARNING, "%s: unsupported page/subpage %02xh/%02xh in MODE_SENSE_6", this->name.c_str(), page_code, sub_page_code);
this->status = ScsiStatus::CHECK_CONDITION;
this->sense = ScsiSense::ILLEGAL_REQ;
this->asc = 0x24; // Invalid Field in CDB
this->ascq = 0;
this->sksv = 0xc0; // sksv=1, C/D=Command, BPV=0, BP=0
this->field = 3;
this->switch_phase(ScsiPhase::STATUS);
return;
}
// adjust for overall mode sense data length
this->data_buf[0] += this->data_buf[13] + 1;
this->data_buf[0] = p_buf - this->data_buf - 1;
this->bytes_out = std::min(alloc_len, (uint8_t)this->data_buf[0]);
this->bytes_out = std::min((int)alloc_len, (int)this->data_buf[0] + 1);
this->switch_phase(ScsiPhase::DATA_IN);
}