AliM1543C_ide.cpp File Reference

Detailed Description

Contains the code for the emulated Ali M1543C IDE chipset part.

Id: AliM1543C_ide.cpp,v 1.32 2008/04/04 08:47:17 iamcamiel Exp

X-1.32 Brian Wheeler 04-APR-2008 Fixed missing variable declaration.

X-1.31 Camiel Vanderhoeven 02-APR-2008 Fixed compiler warnings.

X-1.30 Brian Wheeler 20-MAR-2008 1. Improved locking by a) Removing all of the general register locking; b) Busmaster locking is still in place, but it might not be needed, this locking is pretty fine grained so nothing should time out waiting for it; c) Creating an alt_status variable which gets updated when the real status becomes stable (i.e. at the end of the execute() run, after the drq status is changed, etc), access to this variable is locked; d) Everything else is a free for all. 3. Implement an optional delayed interrupt. The OSes still lose interrupts sometimes.

X-1.29 Brian Wheeler 17-MAR-2008 Fix some CD-ROM issues.

X-1.28 Camiel Vanderhoeven 14-MAR-2008 Formatting.

X-1.27 Camiel Vanderhoeven 14-MAR-2008 1. More meaningful exceptions replace throwing (int) 1. 2. U64 macro replaces X64 macro.

X-1.26 Camiel Vanderhoeven 13-MAR-2008 Create init(), start_threads() and stop_threads() functions.

X-1.25 Brian Wheeler 12-MAR-2008 Better DMA support.

X-1.24 Camiel Vanderhoeven 11-MAR-2008 Named, debuggable mutexes.

X-1.23 Brian Wheeler 11-MAR-2008 Even nicer, more efficient multi-threading version.

X-1.22 Brian Wheeler 05-MAR-2008 Nicer, more efficient multi-threading version.

X-1.21 Camiel Vanderhoeven 05-MAR-2008 Multi-threading version.

X-1.20 Camiel Vanderhoeven 04-MAR-2008 Merged Brian wheeler's New IDE code into the standard controller.

X-1.19.17 Brian Wheeler 27-FEB-2008 Re-fire interrupts less often.

X-1.19.16 Brian Wheeler 27-FEB-2008 Improvement to last fix.

X-1.19.15 Brian Wheeler 27-FEB-2008 This patch fixes the vms boot problems from ide cdrom and it also allowed me to install tru64 -- albeit with timeouts: a) Clears the busmaster active bit when the bit 1 is written to the busmaster status register. b) Attempts to refire the interrupt if the controller seems to have missed it -- before the OS declares a timeout.

X-1.19.14 Brian Wheeler 27-FEB-2008 Avoid compiler warnings.

X-1.19.13 Brian Wheeler 29-JAN-2008 Avoid firing interrupts that occurred while interrupts were disabled.

X-1.19.12 Camiel Vanderhoeven 28-JAN-2008 Avoid compiler warnings.

X-1.19.11 Brian Wheeler 26-JAN-2008 Don't repeat interrupt too soon.

X-1.19.10 Camiel Vanderhoeven 24-JAN-2008 Use new CPCIDevice::do_pci_read and CPCIDevice::do_pci_write.

X-1.19.9 Brian Wheeler 16-JAN-2008 Less timeouts.

X-1.19.8 Brian Wheeler 14-JAN-2008 Less messages without debugging enabled.

X-1.19.7 Fang Zhe 13-JAN-2008 Big-endian support.

X-1.19.6 Camiel Vanderhoeven 12-JAN-2008 Use disk's SCSI engine for ATAPI devices.

X-1.19.5 Brian Wheeler 10-JAN-2008

Stop dividing get_lba_size() by 4 in ATAPI Get Capacity. SRM can now boot cdrom images correctly, and OSes can use cdroms effectively... at least until they call an unimplemented SCSI command.

X-1.19.4 Brian Wheeler 09-JAN-2008

During init, command_in_progress and command_cycle are cleared.
Writes to ide_control are processed correctly. Tru64 & FreeBSD recognize disks now.
interrupt is deasserted when command register is written.
Removed a bunch of debugging sections.
Made it quieter if DEBUG_IDE wasn't defined -- users should no longer see Debug Pause messages.
busy is asserted if we're currently processing a packet command when drq is deasserted (i.e. when the read buffer is empty). This lets us get back into the ATAPI state machine before the host can start messing with the controller.
Removed pauses for port 0x3n7 -- its really a floppy port.
Remove pause when reset is being started.
packet dma flag is presented when get_status() is run.
ATAPI command 0x1e (media lock) implemented as no-op.
ATAPI command 0x43 (read TOC) implemented as a hack.
ATAPI read now uses get_block_size() for determining transfers.
ATAPI state machine goes from DP34 to DI immediately upon completion instead of redirecting through DP2.
Added ATA Command 0xc6 (Set Multiple).

X-1.19.3 Brian wheeler 08-JAN-2008 ATAPI improved.

X-1.19.2 Brian wheeler 08-JAN-2008 Handle blocksize correctly for ATAPI.

X-1.19.1 Brian wheeler 08-JAN-2008 Complete rewrite of IDE controller.

X-1.19 Fang Zhe 08-JAN-2008 Endianess.

X-1.18 Camiel Vanderhoeven 06-JAN-2008 Leave changing the blocksize to the disk itself.

X-1.17 Camiel Vanderhoeven 04-JAN-2008 Less messages fprint'ed.

X-1.16 Camiel Vanderhoeven 02-JAN-2008 Avoid compiler warnings.

X-1.15 Camiel Vanderhoeven 30-DEC-2007 Print file id on initialization.

X-1.14 Camiel Vanderhoeven 29-DEC-2007 Compileable with older compilers (VC 6.0). Avoid referencing uninitialized data.

X-1.13 Camiel Vanderhoeven 28-DEC-2007 Throw exceptions rather than just exiting when errors occur.

X-1.12 Camiel Vanderhoeven 28-DEC-2007 Keep the compiler happy.

X-1.11 Camiel Vanderhoeven 28-DEC-2007 Only delay IDE interrupts when NO_VMS is defined. (Need to fix this properly).

X-1.10 Camiel Vanderhoeven 20-DEC-2007 More checks if disk exists.

X-1.9 Brian wheeler 19-DEC-2007 Added basic ATAPI support.

X-1.8 Brian wheeler 17-DEC-2007 Delayed IDE interrupts. (NetBSD requirement)

X-1.7 Camiel Vanderhoeven 17-DEC-2007 SaveState file format 2.1

X-1.6 Camiel Vanderhoeven 14-DEC-2007 Commented out printing each IDE command.

X-1.5 Camiel Vanderhoeven 12-DEC-2007 Use disk controller base class.

X-1.4 Camiel Vanderhoeven 11-DEC-2007 Removed last references to ide_command[][].

X-1.3 Camiel Vanderhoeven 11-DEC-2007 Cleanup.

X-1.2 Camiel Vanderhoeven 11-DEC-2007 More complete IDE implementation allows NetBSD to recognize disks.

X-1.1 Camiel Vanderhoeven 10-DEC-2007 Initial version in CVS; this part was split off from the CAliM1543C class.

Definition in file AliM1543C_ide.cpp.

#include "StdAfx.h"
#include "AliM1543C_ide.h"
#include "System.h"
#include <math.h>
#include "gui/scancodes.h"
#include "gui/keymap.h"
#include "AliM1543C.h"
#include "Disk.h"

Go to the source code of this file.

Defines

#define PAUSE(msg)

Variables

u32 AliM1543C_ide_cfg_data [64]

u32 AliM1543C_ide_cfg_mask [64]

static u32 ide_magic1 = 0xB222654D

static u32 ide_magic2 = 0xD456222C

CAliM1543C_ide * theIDE = 0

Define Documentation

#define PAUSE ( msg )

Value:

do                         \
  {                          \
    printf("Debug Pause: "); \
    printf(msg);             \
    getc(stdin);             \
  } while(0);

Definition at line 236 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::execute(), CAliM1543C_ide::ide_command_read(), and CAliM1543C_ide::ide_command_write().

Variable Documentation

u32 AliM1543C_ide_cfg_data[64]

Initial value:

 {
   0x522910b9,  
   0x02800000,  
   0x0101fac1,  
   0x00000000,  
   0x000001f1,  
   0x000003f5,  
   0x00000171,  
   0x00000375,  
   0x0000f001,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,
   0x040201ff,  
  0, 0,
   0x4a000000,  
   0x1aba0000,  
  0,
   0x44445555,  
  0, 0, 0, 0, 0, 0, 0, 0,
   0x00000021,  
  0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

Definition at line 244 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::init().

u32 AliM1543C_ide_cfg_mask[64]

Initial value:

 {
   0x00000000,  
   0x00000105,  
   0x00000000,  
   0x0000ffff,  
   0xfffffff8,  
   0xfffffffc,  
   0xfffffff8,  
   0xfffffffc,  
   0xfffffff0,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,  
   0x00000000,
   0x000000ff,  
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

Definition at line 273 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::init().

u32 ide_magic1 = 0xB222654D [static]

Definition at line 427 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::RestoreState(), and CAliM1543C_ide::SaveState().

u32 ide_magic2 = 0xD456222C [static]

Definition at line 428 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::RestoreState(), and CAliM1543C_ide::SaveState().

CAliM1543C_ide* theIDE = 0

Definition at line 1415 of file AliM1543C_ide.cpp.

Referenced by CAliM1543C_ide::CAliM1543C_ide().


Defines
#define	PAUSE(msg)
Variables
u32	AliM1543C_ide_cfg_data [64]
u32	AliM1543C_ide_cfg_mask [64]
static u32	ide_magic1 = 0xB222654D
static u32	ide_magic2 = 0xD456222C
CAliM1543C_ide *	theIDE = 0