2001-04-10 06:20:02 +04:00
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// Copyright (C) 2001 MandrakeSoft S.A.
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2001-04-10 05:04:59 +04:00
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#ifndef _PCDMA_H
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#define _PCDMA_H
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#define BX_KBD_ELEMENTS 16
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#define BX_MOUSE_BUFF_SIZE 48
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#if BX_USE_DMA_SMF
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# define BX_DMA_SMF static
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# define BX_DMA_THIS bx_dma.
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#else
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# define BX_DMA_SMF
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# define BX_DMA_THIS this->
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#endif
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merge in BRANCH-io-cleanup.
To see the commit logs for this use either cvsweb or
cvs update -r BRANCH-io-cleanup and then 'cvs log' the various files.
In general this provides a generic interface for logging.
logfunctions:: is a class that is inherited by some classes, and also
. allocated as a standalone global called 'genlog'. All logging uses
. one of the ::info(), ::error(), ::ldebug(), ::panic() methods of this
. class through 'BX_INFO(), BX_ERROR(), BX_DEBUG(), BX_PANIC()' macros
. respectively.
.
. An example usage:
. BX_INFO(("Hello, World!\n"));
iofunctions:: is a class that is allocated once by default, and assigned
as the iofunction of each logfunctions instance. It is this class that
maintains the file descriptor and other output related code, at this
point using vfprintf(). At some future point, someone may choose to
write a gui 'console' for bochs to which messages would be redirected
simply by assigning a different iofunction class to the various logfunctions
objects.
More cleanup is coming, but this works for now. If you want to see alot
of debugging output, in main.cc, change onoff[LOGLEV_DEBUG]=0 to =1.
Comments, bugs, flames, to me: todd@fries.net
2001-05-15 18:49:57 +04:00
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class bx_dma_c : public logfunctions {
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2001-04-10 05:04:59 +04:00
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public:
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bx_dma_c();
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~bx_dma_c(void);
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BX_DMA_SMF void init(bx_devices_c *);
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BX_DMA_SMF void DRQ(unsigned channel, Boolean val);
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BX_DMA_SMF void raise_HLDA(bx_pc_system_c *pc_sys);
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private:
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static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
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static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
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#if !BX_USE_DMA_SMF
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Bit32u read( Bit32u address, unsigned io_len);
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void write(Bit32u address, Bit32u value, unsigned io_len);
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#endif
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struct {
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Boolean mask[4];
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Boolean flip_flop;
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Bit8u status_reg;
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Bit8u command_reg;
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Bit8u request_reg;
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Bit8u temporary_reg;
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struct {
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struct {
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Bit8u mode_type;
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Bit8u address_decrement;
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Bit8u autoinit_enable;
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Bit8u transfer_type;
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} mode;
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Bit16u base_address;
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Bit16u current_address;
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Bit16u base_count;
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Bit16u current_count;
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Bit8u page_reg;
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} chan[4]; /* DMA channels 0..3 */
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} s; // state information
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bx_devices_c *devices;
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};
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extern bx_dma_c bx_dma;
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#endif // #ifndef _PCDMA_H
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