Commit Graph

24 Commits

Author SHA1 Message Date
joevt
637844269f atapicdrom: Implement sector areas for Read CD.
The disk cache is unchanged. data_ptr continues to be only used for the user data sector area for each block. The other sector areas (synch, header, etc.) are filled in while reading.

has_data and get_data exist as a way to bypass data_ptr for parts of the transfer outside the user data sector area of each block. The default behaviour is defined in atabasedevice and is overridden by atapicdrom for the Read CD command. atapicdrom has a flag doing_sector_areas to control the behavior of the get_data method. When the flag is true, the sector_areas, current_block, and current_block_byte are used for selecting the correct data from one of the sector areas. The Read CD command initializes those variables. xfer_cnt remains the total number of bytes to be transferred and is now not necessarily the same as the number of disk image blocks read into the disk cache.

lba_to_msf is used to fill in the header. The values was not verified using a real CD.

Mac OS X just cares about the Mode in the header. For now, only the synch and header and user data areas are filled in. The other areas read as all zeros.
2023-09-25 12:22:17 +02:00
joevt
ec5bf8e985 atapicdrom: Implement READ(6) and READ(10). 2023-09-25 12:22:17 +02:00
Maxim Poliakovski
f7a1412ec7 atapibasedevice: fix task file initialization on reset. 2023-07-09 02:10:48 +02:00
Maxim Poliakovski
0687b0c60e New ATAPI CD-ROM implementation. 2023-06-18 23:36:46 +02:00
Maxim Poliakovski
fc26be3e24 atapibasedevice: implement PIO transfers.
Also move ATAPI CD-ROM related stuff to separate
source and implement various helpers.
2023-06-18 23:33:57 +02:00
Maxim Poliakovski
a4cac2df81 atabasedevice: interrupt support. 2023-06-18 23:30:06 +02:00
Maxim Poliakovski
ac267b3daa idechannel: support devices registration and interrupts. 2023-06-18 23:24:19 +02:00
Maxim Poliakovski
d113c4cf7a ATAPI Features bit definitions. 2023-06-18 23:06:04 +02:00
Maxim Poliakovski
586828b375 Base class for ATAPI devices. 2023-05-15 17:57:20 +02:00
Maxim Poliakovski
e36150a5ca Add ATAPI commands, clean up formatting. 2023-05-15 17:57:20 +02:00
Maxim Poliakovski
0f8e68d4bf Rework ATA reset logic. 2023-05-15 17:57:20 +02:00
Maxim Poliakovski
ed48766e5f atahd: cosmetic improvements. 2023-04-17 09:56:03 +02:00
Maxim Poliakovski
a189c94980 scsihd: fix READ_CAPACITY_10 command.
Also bump internal buffer size to 2 MB
to temporarily fix buffer overflows.
2022-12-14 16:14:53 +01:00
Maxim Poliakovski
dee225ee8f atabasedevice: add ATAPI signature at device reset. 2022-12-12 15:07:19 +01:00
Maxim Poliakovski
52bb87b72a Improve ATA interface. 2022-12-12 02:36:56 +01:00
dingusdev
0dd9a3d9b1 Further ATA cmd work 2022-12-11 16:08:43 -07:00
Maxim Poliakovski
86b0174b13 Fix previous. 2022-12-09 01:07:08 +01:00
Maxim Poliakovski
daf3ecde4e More ATA interface cleanup. 2022-12-09 01:03:09 +01:00
dingusdev
1e9ec5d7ae Start ATA command support 2022-12-08 15:29:04 -07:00
Maxim Poliakovski
2537751fa7 Clean up ATA interface. 2022-12-08 08:04:09 +01:00
Maxim Poliakovski
df1a56305a atabasedevice: rework task file registers. 2022-12-08 00:16:10 +01:00
Maxim Poliakovski
6173a782f2 Implement ATA hard disk stub. 2022-12-07 23:36:56 +01:00
Maxim Poliakovski
a892842b8f Refactor ATA/IDE classes. 2022-12-07 22:36:25 +01:00
dingusdev
58908621e6 IDE refinements 2022-12-05 08:42:51 -07:00