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code cleanup

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Polprzewodnikowy 2021-12-24 23:05:43 +01:00
parent 119a72f91a
commit 75ed466178
2 changed files with 108 additions and 104 deletions
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208
sw/pc/sc64.py
View File

@ -63,6 +63,7 @@ class SC64:
self.__progress_finish = None
self.__fsd_file = None
self.__disk_file = None
self.__disk_lba_table = []
self.__find_sc64()
@ -380,39 +381,31 @@ class SC64:
raise SC64Exception("DD disk state outside of supported values")
def set_dd_drive_type(self, type: str) -> None:
if (type == "retail"):
self.__change_config(self.__CFG_ID_DD_SETTING, self.__DD_SETTING_DRIVE_RETAIL)
elif (type == "development"):
self.__change_config(self.__CFG_ID_DD_SETTING, self.__DD_SETTING_DRIVE_DEVELOPMENT)
else:
raise SC64Exception("DD drive type outside of supported values")
def __dd_process_disk(self, handle: TextIOWrapper) -> tuple[str, bytes]:
DISK_TRACKS = 1175
def __dd_create_configuration(self, handle: TextIOWrapper) -> tuple[str, int, list[tuple[int, int]]]:
DISK_HEADS = 2
DISK_TRACKS = 1175
DISK_BLOCKS_PER_TRACK = 2
DISK_SECTORS_PER_BLOCK = 85
DISK_BAD_TRACKS_PER_ZONE = 12
DISK_SYSTEM_SECTOR_SIZE = 232
DISK_PZONES = [
(0, 0, 158, 232, 0, 0),
(1, 0, 158, 216, 158, 1),
(2, 0, 149, 208, 316, 2),
(3, 0, 149, 192, 465, 3),
(4, 0, 149, 176, 614, 4),
(5, 0, 149, 160, 763, 5),
(6, 0, 149, 144, 912, 6),
(7, 0, 114, 128, 1061, 7),
(1, 1, 158, 216, 157, 8),
(2, 1, 158, 208, 315, 9),
(3, 1, 149, 192, 464, 10),
(4, 1, 149, 176, 613, 11),
(5, 1, 149, 160, 762, 12),
(6, 1, 149, 144, 911, 13),
(7, 1, 149, 128, 1060, 14),
(8, 1, 114, 112, 1174, 15),
DISK_ZONES = [
(0, 232, 158, 0),
(0, 216, 158, 158),
(0, 208, 149, 316),
(0, 192, 149, 465),
(0, 176, 149, 614),
(0, 160, 149, 763),
(0, 144, 149, 912),
(0, 128, 114, 1061),
(1, 216, 158, 157),
(1, 208, 158, 315),
(1, 192, 149, 464),
(1, 176, 149, 613),
(1, 160, 149, 762),
(1, 144, 149, 911),
(1, 128, 149, 1060),
(1, 112, 114, 1174),
]
DISK_VZONE_TO_PZONE = [
@ -425,113 +418,122 @@ class SC64:
[0, 1, 2, 3, 4, 5, 6, 7, 15, 14, 13, 12, 11, 10, 9, 8],
]
DRIVE_TYPES = [{
"drive_type": "development",
"system_lbas": [11, 10, 3, 2],
"sector_size": 192,
}, {
"drive_type": "retail",
"system_lbas": [9, 8, 1, 0],
"sector_size": 232,
}]
block_valid = False
system_data = None
disk_type = None
drive_type = None
for drive in DRIVE_TYPES:
if (block_valid):
break
for system_lba in drive["system_lbas"]:
block_valid = True
sector_size = drive["sector_size"]
handle.seek(system_lba * DISK_SYSTEM_SECTOR_SIZE * DISK_SECTORS_PER_BLOCK)
block_data = handle.read(sector_size * DISK_SECTORS_PER_BLOCK)
system_data = block_data[:sector_size]
for sector in range(1, DISK_SECTORS_PER_BLOCK):
sector_data = block_data[(sector * sector_size):][:sector_size]
if (system_data != sector_data):
block_valid = False
DISK_DRIVE_TYPES = [(
"development",
192,
[11, 10, 3, 2],
[0, 1, 8, 9, 16, 17, 18, 19, 20, 21, 22, 23],
), (
"retail",
232,
[9, 8, 1, 0],
[2, 3, 10, 11, 12, 16, 17, 18, 19, 20, 21, 22, 23],
)]
def __check_system_block(lba: int, sector_size: int, check_disk_type: bool) -> tuple[bool, bytes]:
handle.seek(lba * DISK_SYSTEM_SECTOR_SIZE * DISK_SECTORS_PER_BLOCK)
system_block_data = handle.read(sector_size * DISK_SECTORS_PER_BLOCK)
system_data = system_block_data[:sector_size]
for sector in range(1, DISK_SECTORS_PER_BLOCK):
sector_data = system_block_data[(sector * sector_size):][:sector_size]
if (system_data != sector_data):
return (False, None)
if (check_disk_type):
if (system_data[4] != 0x10):
block_valid = False
return (False, None)
if ((system_data[5] & 0xF0) != 0x10):
block_valid = False
return (False, None)
return (True, system_data)
if (block_valid):
disk_type = system_data[5] & 0x0F
drive_type = drive["drive_type"]
disk_drive_type = None
disk_system_data = None
disk_id_data = None
disk_bad_lbas = []
if (not block_valid):
drive_index = 0
while (disk_system_data == None) and (drive_index < len(DISK_DRIVE_TYPES)):
(drive_type, system_sector_size, system_data_lbas, bad_lbas) = DISK_DRIVE_TYPES[drive_index]
disk_bad_lbas.clear()
disk_bad_lbas.extend(bad_lbas)
for system_lba in system_data_lbas:
(valid, system_data) = __check_system_block(system_lba, system_sector_size, check_disk_type=True)
if (valid):
disk_drive_type = drive_type
disk_system_data = system_data
else:
disk_bad_lbas.append(system_lba)
drive_index += 1
for id_lba in [15, 14]:
(valid, id_data) = __check_system_block(id_lba, DISK_SYSTEM_SECTOR_SIZE, check_disk_type=False)
if (valid):
disk_id_data = id_data
else:
disk_bad_lbas.append(id_lba)
if not (disk_system_data and disk_id_data):
raise SC64Exception("Provided 64DD disk file is not valid")
disk_zone_bad_tracks = []
for pzone in range(16):
tracks = []
start = 0 if pzone == 0 else system_data[0x07 + pzone]
stop = system_data[0x07 + pzone + 1]
for zone in range(len(DISK_ZONES)):
zone_bad_tracks = []
start = 0 if zone == 0 else system_data[0x07 + zone]
stop = system_data[0x07 + zone + 1]
for offset in range(start, stop):
tracks.append(system_data[0x20 + offset])
if (drive_type == "development"):
tracks.append(DISK_PZONES[pzone][2] - 2)
tracks.append(DISK_PZONES[pzone][2] - 1)
disk_zone_bad_tracks.append(tracks)
zone_bad_tracks.append(system_data[0x20 + offset])
for ignored_track in range(DISK_BAD_TRACKS_PER_ZONE - len(zone_bad_tracks)):
zone_bad_tracks.append(DISK_ZONES[zone][2] - ignored_track - 1)
disk_zone_bad_tracks.append(zone_bad_tracks)
zones = []
thb_lba_table = [(0xFFFFFFFF, -1)] * (DISK_HEADS * DISK_TRACKS * DISK_BLOCKS_PER_TRACK)
for vzone in range(16):
zones.append(DISK_PZONES[DISK_VZONE_TO_PZONE[disk_type][vzone]])
thb_table = [0xFFFFFFFF] * (DISK_TRACKS * DISK_HEADS * DISK_BLOCKS_PER_TRACK)
disk_type = disk_system_data[5] & 0x0F
current_lba = 0
starting_block = 0
disk_file_offset = 0
lba = 0
for (vzone, head, tracks, sector_size, track, pzone) in zones:
processed_tracks = 0
for zone in DISK_VZONE_TO_PZONE[disk_type]:
(head, sector_size, tracks, track) = DISK_ZONES[zone]
for zone_track in range(tracks):
current_zone_track = ((tracks - 1) - zone_track) if head else zone_track
if (current_zone_track in disk_zone_bad_tracks[pzone]):
if (current_zone_track in disk_zone_bad_tracks[zone]):
track += (-1) if head else 1
continue
if (processed_tracks >= (tracks - 12)):
break
for block in range(2):
if (not (drive_type == "retail" and lba == 12)):
thb_table_entry = (track << 2) | (head << 1) | (starting_block ^ block)
thb_table[thb_table_entry] = disk_file_offset
disk_file_offset += sector_size * 85
lba += 1
for block in range(DISK_BLOCKS_PER_TRACK):
if (current_lba not in disk_bad_lbas):
index = (track << 2) | (head << 1) | (starting_block ^ block)
thb_lba_table[index] = (disk_file_offset, current_lba)
disk_file_offset += sector_size * DISK_SECTORS_PER_BLOCK
current_lba += 1
track += (-1) if head else 1
starting_block ^= 1
processed_tracks += 1
return (drive_type, thb_table)
return (disk_drive_type, thb_lba_table)
def set_dd_disk_info(self, file: str = None):
def set_dd_configuration_for_disk(self, file: str = None) -> None:
if (file):
with open(file, "rb+") as handle:
(drive_type, thb_table) = self.__dd_process_disk(handle)
(disk_drive_type, thb_lba_table) = self.__dd_create_configuration(handle)
thb_table_offset = self.__query_config(self.__CFG_ID_DD_THB_TABLE_OFFSET)
data = bytearray()
for value in thb_table:
data += struct.pack(">I", value)
self.__disk_lba_table = [0xFFFFFFFF] * len(thb_lba_table)
for (offset, lba) in thb_lba_table:
data += struct.pack(">I", offset)
self.__disk_lba_table[lba] = offset
self.__write_cmd("W", thb_table_offset, len(data))
self.__write(data)
self.__read_cmd_status("W")
self.set_dd_drive_type(drive_type)
if (disk_drive_type == "retail"):
self.__change_config(self.__CFG_ID_DD_SETTING, self.__DD_SETTING_DRIVE_RETAIL)
elif (disk_drive_type == "development"):
self.__change_config(self.__CFG_ID_DD_SETTING, self.__DD_SETTING_DRIVE_DEVELOPMENT)
else:
raise SC64Exception("No DD disk file provided for disk info creation")
@ -561,6 +563,8 @@ class SC64:
disk_file_offset = int.from_bytes(data[8:12], byteorder='big')
block_length = int.from_bytes(data[12:16], byteorder='big')
print(f"64DD Block {'R' if transfer_mode else 'W'} - LBA: {self.__disk_lba_table.index(disk_file_offset):4}, Offset: 0x{disk_file_offset:08X}")
if (self.__disk_file):
self.__disk_file.seek(disk_file_offset)
if (transfer_mode):
@ -784,7 +788,7 @@ if __name__ == "__main__":
print(f"Using fake SD emulation file [{sd_file}]")
if (disk_file):
print(f"Using 64DD disk image file [{disk_file}]")
sc64.set_dd_disk_info(disk_file)
sc64.set_dd_configuration_for_disk(disk_file)
if (disk_file):
print(f"Setting 64DD disk state to [Inserted]")
sc64.set_dd_disk_state("changed" if disk_file else "ejected")

2
sw/riscv/src/dd.c
View File

@ -107,7 +107,7 @@ static bool dd_block_request (void) {
*dst++ = swap32((USB_DEBUG_ID_DD_BLOCK << 24) | 16);
*dst++ = swap32(p.transfer_mode);
*dst++ = swap32((uint32_t) (p.block_buffer));
*dst++ = (offset);
*dst++ = offset;
*dst++ = swap32(length);
*dst++ = *((uint32_t *) (cmp));