c7c9cc2430
DMA functions defined. Most of the changes are based on the "bochs sync"
version of plex86. Here is the list of changes:
* register/unregister functions for DMA channels added. The DMA controller
can use the DMA read/write handlers of registered devices directly.
* "hardwired" code in dma.cc removed
* all DMA related code in devices.cc and iodev.h removed
* DMA related code in pc_system.* removed except HRQ handling
* macros for DMA functions defined in bochs.h
* floppy and SB16 code modified to use the changes described above
178 lines
5.1 KiB
C++
178 lines
5.1 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: iodev.h,v 1.14 2002-06-16 15:02:27 vruppert Exp $
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2002 MandrakeSoft S.A.
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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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/* maximum number of emulated devices allowed. floppy, mda, etc...
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you can increase this to anything below 256 since an 8-bit handle
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is used for each device */
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#define BX_MAX_IO_DEVICES 20
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/* number of IRQ lines supported. In an ISA PC there are two
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PIC chips cascaded together. each has 8 IRQ lines, so there
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should be 16 IRQ's total */
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#define BX_MAX_IRQS 16
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#define BX_NO_IRQ -1
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class bx_biosdev_c;
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class bx_pit_c;
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class bx_keyb_c;
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class bx_dma_c;
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class bx_floppy_ctrl_c;
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class bx_cmos_c;
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class bx_serial_c;
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class bx_parallel_c;
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class bx_unmapped_c;
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class bx_vga_c;
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class bx_pic_c;
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class bx_hard_drive_c;
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class bx_sb16_c;
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class bx_pci_c;
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class bx_ioapic_c;
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class bx_ne2k_c;
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class bx_g2h_c;
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#if BX_IODEBUG_SUPPORT
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class bx_iodebug_c;
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#endif
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typedef Bit32u (*bx_read_handler_t)(void *, Bit32u, unsigned);
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typedef void (*bx_write_handler_t)(void *, Bit32u, Bit32u, unsigned);
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#if BX_USE_DEV_SMF
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# define BX_DEV_SMF static
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# define BX_DEV_THIS bx_devices.
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#else
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# define BX_DEV_SMF
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# define BX_DEV_THIS this->
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#endif
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class bx_devices_c : public logfunctions {
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public:
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bx_devices_c(void);
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~bx_devices_c(void);
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void init(BX_MEM_C *);
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BX_MEM_C *mem; // address space associated with these devices
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Boolean register_io_read_handler(void *this_ptr, bx_read_handler_t f, Bit32u addr, const char *name );
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Boolean register_io_write_handler(void *this_ptr, bx_write_handler_t f, Bit32u addr, const char *name );
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Boolean register_irq(unsigned irq, const char *name);
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Boolean unregister_irq(unsigned irq, const char *name);
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void iodev_init(void);
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Bit32u inp(Bit16u addr, unsigned io_len);
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void outp(Bit16u addr, Bit32u value, unsigned io_len);
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static void timer_handler(void *);
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void timer(void);
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bx_biosdev_c *biosdev;
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bx_ioapic_c *ioapic;
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bx_pci_c *pci;
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bx_pit_c *pit;
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bx_keyb_c *keyboard;
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bx_dma_c *dma;
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bx_floppy_ctrl_c *floppy;
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bx_cmos_c *cmos;
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bx_serial_c *serial;
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bx_parallel_c *parallel;
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bx_unmapped_c *unmapped;
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bx_vga_c *vga;
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bx_pic_c *pic;
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bx_hard_drive_c *hard_drive;
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bx_sb16_c *sb16;
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bx_ne2k_c *ne2k;
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bx_g2h_c *g2h;
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#if BX_IODEBUG_SUPPORT
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bx_iodebug_c *iodebug;
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#endif
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private:
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Bit8u read_handler_id[0x10000]; // 64K
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struct {
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bx_read_handler_t funct;
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void *this_ptr;
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const char *handler_name; // name of device
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} io_read_handler[BX_MAX_IO_DEVICES];
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unsigned num_read_handles;
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Bit8u write_handler_id[0x10000]; // 64K
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struct {
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bx_write_handler_t funct;
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void *this_ptr;
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const char *handler_name; // name of device
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} io_write_handler[BX_MAX_IO_DEVICES];
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unsigned num_write_handles;
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// more for informative purposes, the names of the devices which
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// are use each of the IRQ 0..15 lines are stored here
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const char *irq_handler_name[BX_MAX_IRQS];
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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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BX_DEV_SMF Bit32u port92_read(Bit32u address, unsigned io_len);
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BX_DEV_SMF void port92_write(Bit32u address, Bit32u value, unsigned io_len);
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int timer_handle;
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};
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#include "iodev/pci.h"
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#if BX_SUPPORT_VGA
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# include "iodev/vga.h"
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#else
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# include "iodev/hga.h"
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#endif
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#if BX_SUPPORT_APIC
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# include "iodev/ioapic.h"
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#endif
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#include "iodev/biosdev.h"
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#include "iodev/cmos.h"
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#include "iodev/dma.h"
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#include "iodev/floppy.h"
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#include "iodev/harddrv.h"
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#if BX_IODEBUG_SUPPORT
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# include "iodev/iodebug.h"
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#endif
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#include "iodev/keyboard.h"
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#include "iodev/parallel.h"
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#include "iodev/pic.h"
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#include "iodev/pit.h"
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#include "iodev/pit_wrap.h"
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#include "iodev/serial.h"
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#if BX_SUPPORT_SB16
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# include "iodev/sb16.h"
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#endif
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#include "iodev/unmapped.h"
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#include "iodev/eth.h"
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#include "iodev/ne2k.h"
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#include "iodev/guest2host.h"
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#include "iodev/slowdown_timer.h"
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