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Add ModeSense page 0x25 (DEC special function control page) (#1412)

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* Add ModeSense page 0x25 (DECSpecialFunctionControlPage)

VAXServer 3100 (CPU KA41-E) console firmware issues ModeSense(6)
page 0x25 when probing for disks. A disk won't be recognized if
this returns an error.

The DEC SCSI specification[1], section 8.5 documents this page.

[1] https://manx-docs.org/collections/antonio/dec/dec-scsi.pdf

Fixes #1410

Signed-off-by: Klaus Kämpf <kkaempf@gmail.com>
This commit is contained in:
Klaus Kämpf 2024-01-19 01:55:38 +01:00 committed by GitHub
parent 7cc8df271c
commit 1121b8d9d6
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GPG Key ID: B5690EEEBB952194
5 changed files with 44 additions and 2 deletions
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24
cpp/devices/scsihd.cpp
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@ -97,8 +97,32 @@ void SCSIHD::AddFormatPage(map<int, vector<byte>>& pages, bool changeable) const
EnrichFormatPage(pages, changeable, 1 << GetSectorSizeShiftCount());
}
// Page code 37 (25h) - DEC Special Function Control page
void SCSIHD::AddDECSpecialFunctionControlPage(map<int, vector<byte>>& pages, bool changeable) const
{
vector<byte> buf(25);
// No changeable area
if (changeable) {
pages[0x25] = buf;
return;
}
buf[0] = static_cast<byte> (0x25 | 0x80); // page code, high bit set
buf[1] = static_cast<byte> (sizeof(buf) - 1);
buf[2] = static_cast<byte> (0x01); // drive does not auto-start
pages[0x25] = buf;
}
void SCSIHD::AddVendorPage(map<int, vector<byte>>& pages, int page, bool changeable) const
{
// Page code 0x25: DEC Special Function Control page
if (page == 0x25 || page == 0x3f) {
AddDECSpecialFunctionControlPage(pages, changeable);
}
// Page code 48
if (page == 0x30 || page == 0x3f) {
AddAppleVendorModePage(pages, changeable);

1
cpp/devices/scsihd.h
View File

@ -40,6 +40,7 @@ public:
void ModeSelect(scsi_defs::scsi_command, cdb_t, span<const uint8_t>, int) override;
void AddFormatPage(map<int, vector<byte>>&, bool) const override;
void AddDECSpecialFunctionControlPage(map<int, vector<byte>>&, bool) const;
void AddVendorPage(map<int, vector<byte>>&, int, bool) const override;
private:

1
cpp/test/mocks.h
View File

@ -360,6 +360,7 @@ class MockSCSIHD : public SCSIHD //NOSONAR Ignore inheritance hierarchy depth in
FRIEND_TEST(ScsiHdTest, FinalizeSetup);
FRIEND_TEST(ScsiHdTest, GetProductData);
FRIEND_TEST(ScsiHdTest, SetUpModePages);
FRIEND_TEST(ScsiHdTest, DECSpecialFunctionControlPage);
FRIEND_TEST(ScsiHdTest, GetSectorSizes);
FRIEND_TEST(ScsiHdTest, ModeSelect);
FRIEND_TEST(PiscsiExecutorTest, SetSectorSize);

3
cpp/test/scsihd_nec_test.cpp
View File

@ -18,11 +18,12 @@ using namespace filesystem;
void ScsiHdNecTest_SetUpModePages(map<int, vector<byte>>& pages)
{
EXPECT_EQ(5, pages.size()) << "Unexpected number of mode pages";
EXPECT_EQ(6, pages.size()) << "Unexpected number of mode pages";
EXPECT_EQ(12, pages[1].size());
EXPECT_EQ(24, pages[3].size());
EXPECT_EQ(20, pages[4].size());
EXPECT_EQ(12, pages[8].size());
EXPECT_EQ(25, pages[37].size());
EXPECT_EQ(30, pages[48].size());
}

17
cpp/test/scsihd_test.cpp
View File

@ -13,11 +13,12 @@
void ScsiHdTest_SetUpModePages(map<int, vector<byte>>& pages)
{
EXPECT_EQ(5, pages.size()) << "Unexpected number of mode pages";
EXPECT_EQ(6, pages.size()) << "Unexpected number of mode pages";
EXPECT_EQ(12, pages[1].size());
EXPECT_EQ(24, pages[3].size());
EXPECT_EQ(24, pages[4].size());
EXPECT_EQ(12, pages[8].size());
EXPECT_EQ(25, pages[37].size());
EXPECT_EQ(30, pages[48].size());
}
@ -101,6 +102,20 @@ TEST(ScsiHdTest, SetUpModePages)
ScsiHdTest_SetUpModePages(pages);
}
TEST(ScsiHdTest, DECSpecialFunctionControlPage)
{
map<int, vector<byte>> pages;
vector<byte> buf;
MockSCSIHD hd(0, false);
EXPECT_NO_THROW(hd.SetUpModePages(pages, 0x25, false)) << "MODE SENSE(6) DEC unique page is supported";
EXPECT_NE(pages.end(), pages.find(0x25));
buf = pages[0x25];
EXPECT_EQ(static_cast<byte> (0x25 | 0x80), buf[0]);
EXPECT_EQ(static_cast<byte> (0x17), buf[1]);
EXPECT_EQ(static_cast<byte> (0x01), buf[2]);
}
TEST(ScsiHdTest, ModeSelect)
{
MockSCSIHD hd({ 512 });