8952c144bd
- Fixed PCI BAR initialization (now using memset()). - Fixed reset failure (set all PAM memory types to ROM). - Added stub for the AGP aperture (register BAR #0, handle APSIZE and read GART entry in read/write handlers). - Added some more PCI register defaults and write masks. - Fixed a warning in the ES1370 code. - Voodoo Banshee: set up PCI subsystem ID depending on bus and model. - Volatile BIOS write support must also be present in ISA BIOS memory.
631 lines
20 KiB
C++
631 lines
20 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001-2018 The Bochs Project
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//
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// I/O port handlers API Copyright (C) 2003 by Frank Cornelis
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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//
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/////////////////////////////////////////////////////////////////////////
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#ifndef IODEV_H
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#define IODEV_H
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#include "bochs.h"
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#include "plugin.h"
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#include "param_names.h"
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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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/* size of internal buffer for mouse devices */
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#define BX_MOUSE_BUFF_SIZE 48
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/* maximum size of the ISA DMA buffer */
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#define BX_DMA_BUFFER_SIZE 512
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#define BX_MAX_PCI_DEVICES 20
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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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typedef bx_bool (*bx_kbd_gen_scancode_t)(void *, Bit32u);
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typedef void (*bx_mouse_enq_t)(void *, int, int, int, unsigned, bx_bool);
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typedef void (*bx_mouse_enabled_changed_t)(void *, bx_bool);
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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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//////////////////////////////////////////////////////////////////////
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// bx_devmodel_c declaration
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//////////////////////////////////////////////////////////////////////
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// This class defines virtual methods that are common to all devices.
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// Child classes do not need to implement all of them, because in this
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// definition they are defined as empty, as opposed to being pure
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// virtual (= 0).
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class BOCHSAPI bx_devmodel_c : public logfunctions {
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public:
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virtual ~bx_devmodel_c() {}
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virtual void init(void) {}
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virtual void reset(unsigned type) {}
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virtual void register_state(void) {}
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virtual void after_restore_state(void) {}
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#if BX_DEBUGGER
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virtual void debug_dump(int argc, char **argv) {}
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#endif
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};
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// forward declarations
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class bx_list_c;
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class device_image_t;
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class cdrom_base_c;
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//////////////////////////////////////////////////////////////////////
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// bx_pci_device_c declaration
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//////////////////////////////////////////////////////////////////////
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#if BX_SUPPORT_PCI
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#define BX_PCI_BAR_TYPE_NONE 0
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#define BX_PCI_BAR_TYPE_MEM 1
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#define BX_PCI_BAR_TYPE_IO 2
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typedef struct {
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Bit8u type;
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Bit32u size;
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Bit32u addr;
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union {
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struct {
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memory_handler_t rh;
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memory_handler_t wh;
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const Bit8u *dummy;
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} mem;
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struct {
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bx_read_handler_t rh;
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bx_write_handler_t wh;
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const Bit8u *mask;
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} io;
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};
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} bx_pci_bar_t;
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class BOCHSAPI bx_pci_device_c : public bx_devmodel_c {
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public:
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bx_pci_device_c(): pci_rom(NULL), pci_rom_size(0) {
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for (int i = 0; i < 6; i++) memset(&pci_bar[i], 0, sizeof(bx_pci_bar_t));
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}
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virtual ~bx_pci_device_c() {
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if (pci_rom != NULL) delete [] pci_rom;
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}
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virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
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void pci_write_handler_common(Bit8u address, Bit32u value, unsigned io_len);
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virtual void pci_write_handler(Bit8u address, Bit32u value, unsigned io_len) {}
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virtual void pci_bar_change_notify(void) {}
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void init_pci_conf(Bit16u vid, Bit16u did, Bit8u rev, Bit32u classc,
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Bit8u headt, Bit8u intpin);
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void init_bar_io(Bit8u num, Bit16u size, bx_read_handler_t rh,
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bx_write_handler_t wh, const Bit8u *mask);
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void init_bar_mem(Bit8u num, Bit32u size, memory_handler_t rh, memory_handler_t wh);
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void register_pci_state(bx_list_c *list);
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void after_restore_pci_state(memory_handler_t mem_read_handler);
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void load_pci_rom(const char *path);
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void set_name(const char *name) {pci_name = name;}
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const char* get_name(void) {return pci_name;}
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protected:
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const char *pci_name;
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Bit8u pci_conf[256];
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bx_pci_bar_t pci_bar[6];
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Bit8u *pci_rom;
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Bit32u pci_rom_address;
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Bit32u pci_rom_size;
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memory_handler_t pci_rom_read_handler;
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};
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#endif
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//////////////////////////////////////////////////////////////////////
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// declare stubs for devices
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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#define STUBFUNC(dev,method) \
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pluginlog->panic("%s called in %s stub. you must not have loaded the %s plugin", #dev, #method, #dev)
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//////////////////////////////////////////////////////////////////////
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class BOCHSAPI bx_keyb_stub_c : public bx_devmodel_c {
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public:
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// stubs for bx_keyb_c methods
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virtual void gen_scancode(Bit32u key) {
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STUBFUNC(keyboard, gen_scancode);
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}
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virtual void paste_bytes(Bit8u *data, Bit32s length) {
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STUBFUNC(keyboard, paste_bytes);
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}
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};
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class BOCHSAPI bx_hard_drive_stub_c : public bx_devmodel_c {
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public:
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virtual Bit32u get_first_cd_handle(void) {
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return BX_MAX_ATA_CHANNEL*2;
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}
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virtual bx_bool get_cd_media_status(Bit32u handle) { return 0; }
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virtual bx_bool set_cd_media_status(Bit32u handle, bx_bool status) {
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STUBFUNC(HD, set_cd_media_status); return 0;
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}
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virtual Bit32u virt_read_handler(Bit32u address, unsigned io_len) { return 0; }
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virtual void virt_write_handler(Bit32u address, Bit32u value, unsigned io_len) {}
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virtual bx_bool bmdma_read_sector(Bit8u channel, Bit8u *buffer, Bit32u *sector_size) {
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STUBFUNC(HD, bmdma_read_sector); return 0;
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}
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virtual bx_bool bmdma_write_sector(Bit8u channel, Bit8u *buffer) {
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STUBFUNC(HD, bmdma_write_sector); return 0;
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}
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virtual void bmdma_complete(Bit8u channel) {
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STUBFUNC(HD, bmdma_complete);
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}
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};
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class BOCHSAPI bx_floppy_stub_c : public bx_devmodel_c {
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public:
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virtual unsigned set_media_status(unsigned drive, unsigned status) {
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STUBFUNC(floppy, set_media_status); return 0;
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}
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};
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class BOCHSAPI bx_cmos_stub_c : public bx_devmodel_c {
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public:
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virtual Bit32u get_reg(Bit8u reg) {
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STUBFUNC(cmos, get_reg); return 0;
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}
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virtual void set_reg(Bit8u reg, Bit32u val) {
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STUBFUNC(cmos, set_reg);
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}
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virtual void checksum_cmos(void) {
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STUBFUNC(cmos, checksum);
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}
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virtual void enable_irq(bx_bool enabled) {
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STUBFUNC(cmos, enable_irq);
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}
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};
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class BOCHSAPI bx_pit_stub_c : public bx_devmodel_c {
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public:
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virtual void enable_irq(bx_bool enabled) {
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STUBFUNC(pit, enable_irq);
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}
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};
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class BOCHSAPI bx_dma_stub_c : public bx_devmodel_c {
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public:
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virtual unsigned registerDMA8Channel(
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unsigned channel,
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Bit16u (* dmaRead)(Bit8u *data_byte, Bit16u maxlen),
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Bit16u (* dmaWrite)(Bit8u *data_byte, Bit16u maxlen),
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const char *name)
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{
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STUBFUNC(dma, registerDMA8Channel); return 0;
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}
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virtual unsigned registerDMA16Channel(
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unsigned channel,
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Bit16u (* dmaRead)(Bit16u *data_word, Bit16u maxlen),
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Bit16u (* dmaWrite)(Bit16u *data_word, Bit16u maxlen),
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const char *name)
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{
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STUBFUNC(dma, registerDMA16Channel); return 0;
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}
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virtual unsigned unregisterDMAChannel(unsigned channel) {
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STUBFUNC(dma, unregisterDMAChannel); return 0;
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}
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virtual unsigned get_TC(void) {
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STUBFUNC(dma, get_TC); return 0;
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}
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virtual void set_DRQ(unsigned channel, bx_bool val) {
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STUBFUNC(dma, set_DRQ);
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}
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virtual void raise_HLDA(void) {
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STUBFUNC(dma, raise_HLDA);
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}
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};
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class BOCHSAPI bx_pic_stub_c : public bx_devmodel_c {
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public:
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virtual void raise_irq(unsigned irq_no) {
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STUBFUNC(pic, raise_irq);
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}
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virtual void lower_irq(unsigned irq_no) {
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STUBFUNC(pic, lower_irq);
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}
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virtual void set_mode(bx_bool ma_sl, Bit8u mode) {
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STUBFUNC(pic, set_mode);
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}
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virtual Bit8u IAC(void) {
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STUBFUNC(pic, IAC); return 0;
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}
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};
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class BOCHSAPI bx_vga_stub_c
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#if BX_SUPPORT_PCI
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: public bx_pci_device_c
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#else
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: public bx_devmodel_c
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#endif
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{
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public:
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virtual void vga_redraw_area(unsigned x0, unsigned y0, unsigned width,
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unsigned height) {
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STUBFUNC(vga, vga_redraw_area);
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}
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virtual Bit8u mem_read(bx_phy_address addr) {
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STUBFUNC(vga, mem_read); return 0;
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}
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virtual void mem_write(bx_phy_address addr, Bit8u value) {
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STUBFUNC(vga, mem_write);
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}
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virtual void get_text_snapshot(Bit8u **text_snapshot,
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unsigned *txHeight, unsigned *txWidth) {
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STUBFUNC(vga, get_text_snapshot);
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}
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virtual void set_override(bx_bool enabled, void *dev) {
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STUBFUNC(vga, set_override);
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}
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virtual void refresh_display(void *this_ptr, bx_bool redraw) {
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STUBFUNC(vga, refresh_display);
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}
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};
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class BOCHSAPI bx_speaker_stub_c : public bx_devmodel_c {
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public:
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virtual void beep_on(float frequency) {
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bx_gui->beep_on(frequency);
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}
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virtual void beep_off() {
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bx_gui->beep_off();
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}
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};
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#if BX_SUPPORT_PCI
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class BOCHSAPI bx_pci2isa_stub_c : public bx_pci_device_c {
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public:
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virtual void pci_set_irq (Bit8u devfunc, unsigned line, bx_bool level) {
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STUBFUNC(pci2isa, pci_set_irq);
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}
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};
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class BOCHSAPI bx_pci_ide_stub_c : public bx_pci_device_c {
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public:
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virtual bx_bool bmdma_present(void) {
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return 0;
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}
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virtual void bmdma_start_transfer(Bit8u channel) {}
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virtual void bmdma_set_irq(Bit8u channel) {}
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};
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class BOCHSAPI bx_acpi_ctrl_stub_c : public bx_pci_device_c {
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public:
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virtual void generate_smi(Bit8u value) {}
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};
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#endif
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#if BX_SUPPORT_IODEBUG
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class BOCHSAPI bx_iodebug_stub_c : public bx_devmodel_c {
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public:
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virtual void mem_write(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {}
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virtual void mem_read(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {}
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};
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#endif
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#if BX_SUPPORT_APIC
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class BOCHSAPI bx_ioapic_stub_c : public bx_devmodel_c {
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public:
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virtual void set_enabled(bx_bool enabled, Bit16u base_offset) {}
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virtual void receive_eoi(Bit8u vector) {}
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virtual void set_irq_level(Bit8u int_in, bx_bool level) {}
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};
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#endif
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#if BX_SUPPORT_GAMEPORT
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class BOCHSAPI bx_game_stub_c : public bx_devmodel_c {
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public:
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virtual void set_enabled(bx_bool val) {
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STUBFUNC(gameport, set_enabled);
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}
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};
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#endif
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class BOCHSAPI bx_hdimage_ctl_stub_c : public bx_devmodel_c {
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public:
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virtual device_image_t* init_image(Bit8u image_mode, Bit64u disk_size, const char *journal) {
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STUBFUNC(hdimage_ctl, init_image); return NULL;
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}
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virtual cdrom_base_c* init_cdrom(const char *dev) {
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STUBFUNC(hdimage_ctl, init_cdrom); return NULL;
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}
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};
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class BOCHSAPI bx_devices_c : public logfunctions {
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public:
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bx_devices_c();
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~bx_devices_c();
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// Initialize the device stubs (in constructur and exit())
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void init_stubs(void);
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// Register I/O addresses and IRQ lines. Initialize any internal
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// structures. init() is called only once, even if the simulator
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// reboots or is restarted.
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void init(BX_MEM_C *);
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// Enter reset state in response to a reset condition.
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// The types of reset conditions are defined in bochs.h:
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// power-on, hardware, or software.
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void reset(unsigned type);
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// Cleanup the devices when the simulation quits.
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void exit(void);
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void register_state(void);
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void after_restore_state(void);
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BX_MEM_C *mem; // address space associated with these devices
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bx_bool register_io_read_handler(void *this_ptr, bx_read_handler_t f,
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Bit32u addr, const char *name, Bit8u mask);
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bx_bool unregister_io_read_handler(void *this_ptr, bx_read_handler_t f,
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Bit32u addr, Bit8u mask);
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bx_bool register_io_write_handler(void *this_ptr, bx_write_handler_t f,
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Bit32u addr, const char *name, Bit8u mask);
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bx_bool unregister_io_write_handler(void *this_ptr, bx_write_handler_t f,
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Bit32u addr, Bit8u mask);
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bx_bool register_io_read_handler_range(void *this_ptr, bx_read_handler_t f,
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Bit32u begin_addr, Bit32u end_addr,
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const char *name, Bit8u mask);
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bx_bool register_io_write_handler_range(void *this_ptr, bx_write_handler_t f,
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Bit32u begin_addr, Bit32u end_addr,
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const char *name, Bit8u mask);
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bx_bool unregister_io_read_handler_range(void *this_ptr, bx_read_handler_t f,
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Bit32u begin, Bit32u end, Bit8u mask);
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bx_bool unregister_io_write_handler_range(void *this_ptr, bx_write_handler_t f,
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Bit32u begin, Bit32u end, Bit8u mask);
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bx_bool register_default_io_read_handler(void *this_ptr, bx_read_handler_t f, const char *name, Bit8u mask);
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bx_bool register_default_io_write_handler(void *this_ptr, bx_write_handler_t f, const char *name, Bit8u mask);
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bx_bool register_irq(unsigned irq, const char *name);
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bx_bool unregister_irq(unsigned irq, const char *name);
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Bit32u inp(Bit16u addr, unsigned io_len) BX_CPP_AttrRegparmN(2);
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void outp(Bit16u addr, Bit32u value, unsigned io_len) BX_CPP_AttrRegparmN(3);
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void register_removable_keyboard(void *dev, bx_kbd_gen_scancode_t kbd_gen_scancode);
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void unregister_removable_keyboard(void *dev);
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void register_default_mouse(void *dev, bx_mouse_enq_t mouse_enq, bx_mouse_enabled_changed_t mouse_enabled_changed);
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void register_removable_mouse(void *dev, bx_mouse_enq_t mouse_enq, bx_mouse_enabled_changed_t mouse_enabled_changed);
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void unregister_removable_mouse(void *dev);
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void gen_scancode(Bit32u key);
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void release_keys(void);
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void mouse_enabled_changed(bx_bool enabled);
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void mouse_motion(int delta_x, int delta_y, int delta_z, unsigned button_state, bx_bool absxy);
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#if BX_SUPPORT_PCI
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Bit32u pci_get_confAddr(void) {return pci.confAddr;}
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bx_bool register_pci_handlers(bx_pci_device_c *device, Bit8u *devfunc,
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const char *name, const char *descr, Bit8u bus = 0);
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bx_bool pci_set_base_mem(void *this_ptr, memory_handler_t f1, memory_handler_t f2,
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Bit32u *addr, Bit8u *pci_conf, unsigned size);
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bx_bool pci_set_base_io(void *this_ptr, bx_read_handler_t f1, bx_write_handler_t f2,
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Bit32u *addr, Bit8u *pci_conf, unsigned size,
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const Bit8u *iomask, const char *name);
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#endif
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static void timer_handler(void *);
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void timer(void);
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bx_cmos_stub_c *pluginCmosDevice;
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bx_dma_stub_c *pluginDmaDevice;
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bx_floppy_stub_c *pluginFloppyDevice;
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bx_hard_drive_stub_c *pluginHardDrive;
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bx_hdimage_ctl_stub_c *pluginHDImageCtl;
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bx_keyb_stub_c *pluginKeyboard;
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bx_pic_stub_c *pluginPicDevice;
|
|
bx_pit_stub_c *pluginPitDevice;
|
|
bx_speaker_stub_c *pluginSpeaker;
|
|
bx_vga_stub_c *pluginVgaDevice;
|
|
#if BX_SUPPORT_IODEBUG
|
|
bx_iodebug_stub_c *pluginIODebug;
|
|
#endif
|
|
#if BX_SUPPORT_APIC
|
|
bx_ioapic_stub_c *pluginIOAPIC;
|
|
#endif
|
|
#if BX_SUPPORT_GAMEPORT
|
|
bx_game_stub_c *pluginGameport;
|
|
#endif
|
|
#if BX_SUPPORT_PCI
|
|
bx_pci2isa_stub_c *pluginPci2IsaBridge;
|
|
bx_pci_ide_stub_c *pluginPciIdeController;
|
|
bx_acpi_ctrl_stub_c *pluginACPIController;
|
|
#endif
|
|
|
|
// stub classes that the pointers (above) can point to until a plugin is
|
|
// loaded
|
|
bx_cmos_stub_c stubCmos;
|
|
bx_dma_stub_c stubDma;
|
|
bx_floppy_stub_c stubFloppy;
|
|
bx_hard_drive_stub_c stubHardDrive;
|
|
bx_hdimage_ctl_stub_c stubHDImage;
|
|
bx_keyb_stub_c stubKeyboard;
|
|
bx_pic_stub_c stubPic;
|
|
bx_pit_stub_c stubPit;
|
|
bx_speaker_stub_c stubSpeaker;
|
|
bx_vga_stub_c stubVga;
|
|
#if BX_SUPPORT_IODEBUG
|
|
bx_iodebug_stub_c stubIODebug;
|
|
#endif
|
|
#if BX_SUPPORT_APIC
|
|
bx_ioapic_stub_c stubIOAPIC;
|
|
#endif
|
|
#if BX_SUPPORT_GAMEPORT
|
|
bx_game_stub_c stubGameport;
|
|
#endif
|
|
#if BX_SUPPORT_PCI
|
|
bx_pci2isa_stub_c stubPci2Isa;
|
|
bx_pci_ide_stub_c stubPciIde;
|
|
bx_acpi_ctrl_stub_c stubACPIController;
|
|
#endif
|
|
|
|
// Some info to pass to devices which can handled bulk IO. This allows
|
|
// the interface to remain the same for IO devices which can't handle
|
|
// bulk IO. We should probably implement special INPBulk() and OUTBulk()
|
|
// functions which stick these values in the bx_devices_c class, and
|
|
// then call the normal functions rather than having gross globals
|
|
// variables.
|
|
Bit8u* bulkIOHostAddr;
|
|
unsigned bulkIOQuantumsRequested;
|
|
unsigned bulkIOQuantumsTransferred;
|
|
|
|
private:
|
|
|
|
struct io_handler_struct {
|
|
struct io_handler_struct *next;
|
|
struct io_handler_struct *prev;
|
|
void *funct; // C++ type checking is great, but annoying
|
|
void *this_ptr;
|
|
char *handler_name; // name of device
|
|
int usage_count;
|
|
Bit8u mask; // io_len mask
|
|
};
|
|
struct io_handler_struct io_read_handlers;
|
|
struct io_handler_struct io_write_handlers;
|
|
#define PORTS 0x10000
|
|
struct io_handler_struct **read_port_to_handler;
|
|
struct io_handler_struct **write_port_to_handler;
|
|
|
|
// more for informative purposes, the names of the devices which
|
|
// are use each of the IRQ 0..15 lines are stored here
|
|
char *irq_handler_name[BX_MAX_IRQS];
|
|
|
|
static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
|
|
static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
|
|
BX_DEV_SMF Bit32u read(Bit32u address, unsigned io_len);
|
|
BX_DEV_SMF void write(Bit32u address, Bit32u value, unsigned io_len);
|
|
|
|
static Bit32u default_read_handler(void *this_ptr, Bit32u address, unsigned io_len);
|
|
static void default_write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
|
|
|
|
bx_bool mouse_captured; // host mouse capture enabled
|
|
Bit8u mouse_type;
|
|
struct {
|
|
void *dev;
|
|
bx_mouse_enq_t enq_event;
|
|
bx_mouse_enabled_changed_t enabled_changed;
|
|
} bx_mouse[2];
|
|
struct {
|
|
void *dev;
|
|
bx_kbd_gen_scancode_t gen_scancode;
|
|
bx_bool bxkey_state[BX_KEY_NBKEYS];
|
|
} bx_keyboard;
|
|
|
|
struct {
|
|
bx_bool enabled;
|
|
#if BX_SUPPORT_PCI
|
|
Bit8u handler_id[0x101]; // 256 PCI devices/functions + 1 AGP device
|
|
struct {
|
|
bx_pci_device_c *handler;
|
|
} pci_handler[BX_MAX_PCI_DEVICES];
|
|
unsigned num_pci_handlers;
|
|
|
|
bx_bool slot_used[BX_N_PCI_SLOTS];
|
|
|
|
Bit32u confAddr;
|
|
#endif
|
|
} pci;
|
|
|
|
int timer_handle;
|
|
|
|
bx_bool network_enabled;
|
|
bx_bool sound_enabled;
|
|
bx_bool usb_enabled;
|
|
|
|
bx_bool is_harddrv_enabled();
|
|
bx_bool is_network_enabled();
|
|
bx_bool is_sound_enabled();
|
|
bx_bool is_usb_enabled();
|
|
};
|
|
|
|
// memory stub has an assumption that there are no memory accesses splitting 4K page
|
|
BX_CPP_INLINE void DEV_MEM_READ_PHYSICAL(bx_phy_address phy_addr, unsigned len, Bit8u *ptr)
|
|
{
|
|
unsigned remainingInPage = 0x1000 - (phy_addr & 0xfff);
|
|
if (len <= remainingInPage) {
|
|
BX_MEM(0)->readPhysicalPage(NULL, phy_addr, len, ptr);
|
|
}
|
|
else {
|
|
BX_MEM(0)->readPhysicalPage(NULL, phy_addr, remainingInPage, ptr);
|
|
ptr += remainingInPage;
|
|
phy_addr += remainingInPage;
|
|
len -= remainingInPage;
|
|
BX_MEM(0)->readPhysicalPage(NULL, phy_addr, len, ptr);
|
|
}
|
|
}
|
|
|
|
BX_CPP_INLINE void DEV_MEM_READ_PHYSICAL_DMA(bx_phy_address phy_addr, unsigned len, Bit8u *ptr)
|
|
{
|
|
while(len > 0) {
|
|
unsigned remainingInPage = 0x1000 - (phy_addr & 0xfff);
|
|
if (len < remainingInPage) remainingInPage = len;
|
|
BX_MEM(0)->dmaReadPhysicalPage(phy_addr, remainingInPage, ptr);
|
|
ptr += remainingInPage;
|
|
phy_addr += remainingInPage;
|
|
len -= remainingInPage;
|
|
}
|
|
}
|
|
|
|
// memory stub has an assumption that there are no memory accesses splitting 4K page
|
|
BX_CPP_INLINE void DEV_MEM_WRITE_PHYSICAL(bx_phy_address phy_addr, unsigned len, Bit8u *ptr)
|
|
{
|
|
unsigned remainingInPage = 0x1000 - (phy_addr & 0xfff);
|
|
if (len <= remainingInPage) {
|
|
BX_MEM(0)->writePhysicalPage(NULL, phy_addr, len, ptr);
|
|
}
|
|
else {
|
|
BX_MEM(0)->writePhysicalPage(NULL, phy_addr, remainingInPage, ptr);
|
|
ptr += remainingInPage;
|
|
phy_addr += remainingInPage;
|
|
len -= remainingInPage;
|
|
BX_MEM(0)->writePhysicalPage(NULL, phy_addr, len, ptr);
|
|
}
|
|
}
|
|
|
|
BX_CPP_INLINE void DEV_MEM_WRITE_PHYSICAL_DMA(bx_phy_address phy_addr, unsigned len, Bit8u *ptr)
|
|
{
|
|
while(len > 0) {
|
|
unsigned remainingInPage = 0x1000 - (phy_addr & 0xfff);
|
|
if (len < remainingInPage) remainingInPage = len;
|
|
BX_MEM(0)->dmaWritePhysicalPage(phy_addr, remainingInPage, ptr);
|
|
ptr += remainingInPage;
|
|
phy_addr += remainingInPage;
|
|
len -= remainingInPage;
|
|
}
|
|
}
|
|
|
|
BOCHSAPI extern bx_devices_c bx_devices;
|
|
|
|
#endif /* IODEV_H */
|