diff options
Diffstat (limited to 'src/mesa/drivers/dos/mga/mga_hw.c')
-rw-r--r-- | src/mesa/drivers/dos/mga/mga_hw.c | 832 |
1 files changed, 416 insertions, 416 deletions
diff --git a/src/mesa/drivers/dos/mga/mga_hw.c b/src/mesa/drivers/dos/mga/mga_hw.c index 08c1d7e54a..b2e7d5cc92 100644 --- a/src/mesa/drivers/dos/mga/mga_hw.c +++ b/src/mesa/drivers/dos/mga/mga_hw.c @@ -1,416 +1,416 @@ -/*
- * Mesa 3-D graphics library
- * Version: 5.0
- *
- * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W HW mapping
- *
- * Copyright (c) 2003 - Borca Daniel
- * Email : dborca@yahoo.com
- * Web : http://www.geocities.com/dborca
- */
-
-
-#include <crt0.h>
-#include <dpmi.h>
-#include <pc.h>
-#include <string.h>
-#include <sys/nearptr.h>
-#include <sys/segments.h>
-
-#include "../internal.h"
-#include "mga_reg.h"
-#include "mga_hw.h"
-
-
-
-/* Hack alert:
- * these should really be externs
- */
-/* PCI access routines */
-static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle);
-static unsigned long pci_read_long (int handle, int index);
-static void pci_write_long (int handle, int index, unsigned long value);
-
-
-
-/* PCI device identifiers */
-#define MATROX_VENDOR_ID 0x102B
-
-typedef enum {
- MATROX_MILL_ID = 0x0519
-} MATROX_ID;
-
-static MATROX_ID matrox_id_list[] = {
- MATROX_MILL_ID,
- 0
-};
-
-
-
-/* internal hardware data structures */
-#if !MGA_FARPTR
-static int dirty;
-#endif
-static int bus_id;
-static unsigned long reg40;
-static unsigned long io_mem_base[4], linear_base;
-static unsigned long io_mem_size[4], linear_size;
-static MATROX_ID matrox_id;
-
-
-
-/* interface structures containing hardware pointer data */
-MGA_HWPTR mgaptr;
-
-
-
-/* Desc: create MMAP
- *
- * In :
- * Out :
- *
- * Note:
- */
-static int _create_mmap (__dpmi_paddr *m, unsigned long base, unsigned long size)
-{
-#if MGA_FARPTR
- int sel;
- if (_create_selector(&sel, base, size)) {
- return -1;
- }
- m->selector = sel;
- m->offset32 = 0;
-#else
- m->selector = _my_ds();
- if (_create_linear_mapping(&m->offset32, base, size)) {
- return -1;
- }
- m->offset32 -= __djgpp_base_address;
-#endif
- return 0;
-}
-
-
-
-/* Desc: destroy MMAP
- *
- * In :
- * Out :
- *
- * Note:
- */
-static void _destroy_mmap (__dpmi_paddr *m)
-{
-#if MGA_FARPTR
- int sel = m->selector;
- _remove_selector(&sel);
-#else
- m->offset32 += __djgpp_base_address;
- _remove_linear_mapping(&m->offset32);
-#endif
- m->selector = 0;
- m->offset32 = 0;
-}
-
-
-
-/* Desc: Counts amount of installed RAM
- *
- * In :
- * Out :
- *
- * Note:
- */
-static int _mga_get_vram (MATROX_ID chip, unsigned long base)
-{
- int ProbeSize = 8;
- int SizeFound = 2;
- unsigned char tmp;
- int i;
- __dpmi_paddr fb;
-
- switch (chip) {
- case MATROX_MILL_ID:
- ProbeSize = 8;
- break;
- }
-
- if (_create_mmap(&fb, base, ProbeSize*1024*1024)) {
- return 0;
- }
-
- /* turn MGA mode on - enable linear frame buffer (CRTCEXT3) */
- mga_select();
- mga_outb(M_CRTC_EXT_INDEX, 3);
- tmp = mga_inb(M_CRTC_EXT_DATA);
- mga_outb(M_CRTC_EXT_DATA, tmp | M_MGAMODE);
-
- /* write, read and compare method */
- for (i=ProbeSize; i>2; i-= 2) {
- hwptr_pokeb(fb, i*1024*1024 - 1, 0xAA);
- mga_select();
- mga_outb(M_CRTC_INDEX, 0); /* flush the cache */
- mga_inl(M_STATUS); /* delay */
- mga_inl(M_STATUS); /* delay */
- mga_inl(M_STATUS); /* delay */
- if (hwptr_peekb(fb, i*1024*1024 - 1) == 0xAA) {
- SizeFound = i;
- break;
- }
- }
-
- /* restore CRTCEXT3 state */
- mga_select();
- mga_outb(M_CRTC_EXT_INDEX, 3);
- mga_outb(M_CRTC_EXT_DATA, tmp);
-
- _destroy_mmap(&fb);
-
- return SizeFound*1024*1024;
-}
-
-
-
-/* Desc: Frees all resources allocated by MGA init code.
- *
- * In :
- * Out :
- *
- * Note:
- */
-void mga_hw_fini (void)
-{
- int i;
-
- pci_write_long(bus_id, 0x40, reg40);
-
- for (i=0; i<4; i++) {
- _destroy_mmap(&mgaptr.io_mem_map[i]);
- }
-
- _destroy_mmap(&mgaptr.linear_map);
-
-#if !MGA_FARPTR
- if (dirty) {
- __djgpp_nearptr_disable();
- dirty = FALSE;
- }
-#endif
-
- matrox_id = 0;
-}
-
-
-
-/* Desc: Attempts to detect MGA.
- *
- * In :
- * Out :
- *
- * Note: The first thing ever to be called. This is in charge of filling in
- * the driver header with all the required information and function
- * pointers. We do not yet have access to the video memory, so we can't
- * talk directly to the card.
- */
-int mga_hw_init (unsigned long *vram, int *interleave, char *name)
-{
- int i;
- unsigned long pci_base[2];
-
- if (matrox_id) {
- return matrox_id;
- }
-
-#if !MGA_FARPTR
- /* enable nearptr access */
- if (_crt0_startup_flags & _CRT0_FLAG_NEARPTR) {
- dirty = FALSE;
- } else {
- if (__djgpp_nearptr_enable() == 0)
- return NULL;
-
- dirty = TRUE;
- }
-#endif
-
- /* find PCI device */
- matrox_id = 0;
-
- for (bus_id=0, i=0; matrox_id_list[i]; i++) {
- if (pci_find_device(matrox_id_list[i], MATROX_VENDOR_ID, 0, &bus_id)) {
- matrox_id = matrox_id_list[i];
- break;
- }
- }
-
- /* set up the card name */
- switch (matrox_id) {
- case MATROX_MILL_ID:
- if (name) strcpy(name, "Millennium");
- break;
- default:
- matrox_id = 0;
- return -1;
- }
-
- reg40 = pci_read_long(bus_id, 0x40);
-#if 0 /* overclock a little :) */
- {
- int rfhcnt = (reg40 >> 16) & 0xF;
- if ((reg40 & 0x200000) && (rfhcnt < 0xC)) {
- pci_write_long(bus_id, 0x40, (reg40 & 0xFFF0FFFF) | 0x000C0000);
- }
- }
-#endif
-
- /* read hardware configuration data */
- for (i=0; i<2; i++)
- pci_base[i] = pci_read_long(bus_id, 16+i*4);
-
- /* work out the linear framebuffer and MMIO addresses */
- if (matrox_id == MATROX_MILL_ID) {
- if (pci_base[0])
- io_mem_base[0] = pci_base[0] & 0xFFFFC000;
-
- if (pci_base[1])
- linear_base = pci_base[1] & 0xFF800000;
- }
-
- if (!linear_base || !io_mem_base[0])
- return NULL;
-
- /* deal with the memory mapping crap */
- io_mem_size[0] = 0x4000;
-
- for (i=0; i<4; i++) {
- if (io_mem_base[i]) {
- if (_create_mmap(&mgaptr.io_mem_map[i], io_mem_base[i], io_mem_size[i])) {
- mga_hw_fini();
- return NULL;
- }
- }
- }
-
- *vram = linear_size = _mga_get_vram(matrox_id, linear_base);
-
- if (_create_mmap(&mgaptr.linear_map, linear_base, linear_size)) {
- mga_hw_fini();
- return NULL;
- }
-
- /* fill in user data */
- *interleave = linear_size > 2*1024*1024;
-
- return matrox_id;
-}
-
-
-
-/* PCI routines added by SET */
-#define PCIAddr 0xCF8
-#define PCIData 0xCFC
-#define PCIEnable 0x80000000
-
-
-
-/* FindPCIDevice:
- * Replacement for the INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE, AX = B102h
- *
- * Note: deviceIndex is because a card can hold more than one PCI chip.
- *
- * Searches the board of the vendor supplied in vendorID with
- * identification number deviceID and index deviceIndex (normally 0).
- * The value returned in handle can be used to access the PCI registers
- * of this board.
- *
- * Return: 1 if found 0 if not found.
- */
-static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle)
-{
- int model, vendor, card, device;
- unsigned value, full_id, bus, busMax;
-
- deviceIndex <<= 8;
-
- /* for each PCI bus */
- for (bus=0, busMax=0x10000; bus<busMax; bus+=0x10000) {
-
- /* for each hardware device */
- for (device=0, card=0; card<32; card++, device+=0x800) {
- value = PCIEnable | bus | deviceIndex | device;
- outportl(PCIAddr, value);
- full_id = inportl(PCIData);
-
- /* get the vendor and model ID */
- vendor = full_id & 0xFFFF;
- model = full_id >> 16;
-
- if (vendor != 0xFFFF) {
- /* is this the one we want? */
- if ((deviceID == model) && (vendorID == vendor)) {
- *handle = value;
- return 1;
- }
-
- /* is it a bridge to a secondary bus? */
- outportl(PCIAddr, value | 8);
-
- if (((inportl(PCIData) >> 16) == 0x0600) || (full_id==0x00011011))
- busMax += 0x10000;
- }
- }
- }
-
- return 0;
-}
-
-
-
-/* Desc:
- *
- * In :
- * Out :
- *
- * Note:
- */
-static unsigned long pci_read_long (int handle, int index)
-{
- outportl(PCIAddr, PCIEnable | handle | index);
- return inportl(PCIData);
-}
-
-
-
-/* Desc:
- *
- * In :
- * Out :
- *
- * Note:
- */
-static void pci_write_long (int handle, int index, unsigned long value)
-{
- outportl(PCIAddr, PCIEnable | handle | index);
- outportl(PCIData, value);
-}
+/* + * Mesa 3-D graphics library + * Version: 5.0 + * + * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * DOS/DJGPP device driver v1.4 for Mesa -- MGA2064W HW mapping + * + * Copyright (c) 2003 - Borca Daniel + * Email : dborca@yahoo.com + * Web : http://www.geocities.com/dborca + */ + + +#include <crt0.h> +#include <dpmi.h> +#include <pc.h> +#include <string.h> +#include <sys/nearptr.h> +#include <sys/segments.h> + +#include "../internal.h" +#include "mga_reg.h" +#include "mga_hw.h" + + + +/* Hack alert: + * these should really be externs + */ +/* PCI access routines */ +static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle); +static unsigned long pci_read_long (int handle, int index); +static void pci_write_long (int handle, int index, unsigned long value); + + + +/* PCI device identifiers */ +#define MATROX_VENDOR_ID 0x102B + +typedef enum { + MATROX_MILL_ID = 0x0519 +} MATROX_ID; + +static MATROX_ID matrox_id_list[] = { + MATROX_MILL_ID, + 0 +}; + + + +/* internal hardware data structures */ +#if !MGA_FARPTR +static int dirty; +#endif +static int bus_id; +static unsigned long reg40; +static unsigned long io_mem_base[4], linear_base; +static unsigned long io_mem_size[4], linear_size; +static MATROX_ID matrox_id; + + + +/* interface structures containing hardware pointer data */ +MGA_HWPTR mgaptr; + + + +/* Desc: create MMAP + * + * In : + * Out : + * + * Note: + */ +static int _create_mmap (__dpmi_paddr *m, unsigned long base, unsigned long size) +{ +#if MGA_FARPTR + int sel; + if (_create_selector(&sel, base, size)) { + return -1; + } + m->selector = sel; + m->offset32 = 0; +#else + m->selector = _my_ds(); + if (_create_linear_mapping(&m->offset32, base, size)) { + return -1; + } + m->offset32 -= __djgpp_base_address; +#endif + return 0; +} + + + +/* Desc: destroy MMAP + * + * In : + * Out : + * + * Note: + */ +static void _destroy_mmap (__dpmi_paddr *m) +{ +#if MGA_FARPTR + int sel = m->selector; + _remove_selector(&sel); +#else + m->offset32 += __djgpp_base_address; + _remove_linear_mapping(&m->offset32); +#endif + m->selector = 0; + m->offset32 = 0; +} + + + +/* Desc: Counts amount of installed RAM + * + * In : + * Out : + * + * Note: + */ +static int _mga_get_vram (MATROX_ID chip, unsigned long base) +{ + int ProbeSize = 8; + int SizeFound = 2; + unsigned char tmp; + int i; + __dpmi_paddr fb; + + switch (chip) { + case MATROX_MILL_ID: + ProbeSize = 8; + break; + } + + if (_create_mmap(&fb, base, ProbeSize*1024*1024)) { + return 0; + } + + /* turn MGA mode on - enable linear frame buffer (CRTCEXT3) */ + mga_select(); + mga_outb(M_CRTC_EXT_INDEX, 3); + tmp = mga_inb(M_CRTC_EXT_DATA); + mga_outb(M_CRTC_EXT_DATA, tmp | M_MGAMODE); + + /* write, read and compare method */ + for (i=ProbeSize; i>2; i-= 2) { + hwptr_pokeb(fb, i*1024*1024 - 1, 0xAA); + mga_select(); + mga_outb(M_CRTC_INDEX, 0); /* flush the cache */ + mga_inl(M_STATUS); /* delay */ + mga_inl(M_STATUS); /* delay */ + mga_inl(M_STATUS); /* delay */ + if (hwptr_peekb(fb, i*1024*1024 - 1) == 0xAA) { + SizeFound = i; + break; + } + } + + /* restore CRTCEXT3 state */ + mga_select(); + mga_outb(M_CRTC_EXT_INDEX, 3); + mga_outb(M_CRTC_EXT_DATA, tmp); + + _destroy_mmap(&fb); + + return SizeFound*1024*1024; +} + + + +/* Desc: Frees all resources allocated by MGA init code. + * + * In : + * Out : + * + * Note: + */ +void mga_hw_fini (void) +{ + int i; + + pci_write_long(bus_id, 0x40, reg40); + + for (i=0; i<4; i++) { + _destroy_mmap(&mgaptr.io_mem_map[i]); + } + + _destroy_mmap(&mgaptr.linear_map); + +#if !MGA_FARPTR + if (dirty) { + __djgpp_nearptr_disable(); + dirty = FALSE; + } +#endif + + matrox_id = 0; +} + + + +/* Desc: Attempts to detect MGA. + * + * In : + * Out : + * + * Note: The first thing ever to be called. This is in charge of filling in + * the driver header with all the required information and function + * pointers. We do not yet have access to the video memory, so we can't + * talk directly to the card. + */ +int mga_hw_init (unsigned long *vram, int *interleave, char *name) +{ + int i; + unsigned long pci_base[2]; + + if (matrox_id) { + return matrox_id; + } + +#if !MGA_FARPTR + /* enable nearptr access */ + if (_crt0_startup_flags & _CRT0_FLAG_NEARPTR) { + dirty = FALSE; + } else { + if (__djgpp_nearptr_enable() == 0) + return 0; + + dirty = TRUE; + } +#endif + + /* find PCI device */ + matrox_id = 0; + + for (bus_id=0, i=0; matrox_id_list[i]; i++) { + if (pci_find_device(matrox_id_list[i], MATROX_VENDOR_ID, 0, &bus_id)) { + matrox_id = matrox_id_list[i]; + break; + } + } + + /* set up the card name */ + switch (matrox_id) { + case MATROX_MILL_ID: + if (name) strcpy(name, "Millennium"); + break; + default: + matrox_id = 0; + return -1; + } + + reg40 = pci_read_long(bus_id, 0x40); +#if 0 /* overclock a little :) */ + { + int rfhcnt = (reg40 >> 16) & 0xF; + if ((reg40 & 0x200000) && (rfhcnt < 0xC)) { + pci_write_long(bus_id, 0x40, (reg40 & 0xFFF0FFFF) | 0x000C0000); + } + } +#endif + + /* read hardware configuration data */ + for (i=0; i<2; i++) + pci_base[i] = pci_read_long(bus_id, 16+i*4); + + /* work out the linear framebuffer and MMIO addresses */ + if (matrox_id == MATROX_MILL_ID) { + if (pci_base[0]) + io_mem_base[0] = pci_base[0] & 0xFFFFC000; + + if (pci_base[1]) + linear_base = pci_base[1] & 0xFF800000; + } + + if (!linear_base || !io_mem_base[0]) + return 0; + + /* deal with the memory mapping crap */ + io_mem_size[0] = 0x4000; + + for (i=0; i<4; i++) { + if (io_mem_base[i]) { + if (_create_mmap(&mgaptr.io_mem_map[i], io_mem_base[i], io_mem_size[i])) { + mga_hw_fini(); + return 0; + } + } + } + + *vram = linear_size = _mga_get_vram(matrox_id, linear_base); + + if (_create_mmap(&mgaptr.linear_map, linear_base, linear_size)) { + mga_hw_fini(); + return 0; + } + + /* fill in user data */ + *interleave = linear_size > 2*1024*1024; + + return matrox_id; +} + + + +/* PCI routines added by SET */ +#define PCIAddr 0xCF8 +#define PCIData 0xCFC +#define PCIEnable 0x80000000 + + + +/* FindPCIDevice: + * Replacement for the INT 1A - PCI BIOS v2.0c+ - FIND PCI DEVICE, AX = B102h + * + * Note: deviceIndex is because a card can hold more than one PCI chip. + * + * Searches the board of the vendor supplied in vendorID with + * identification number deviceID and index deviceIndex (normally 0). + * The value returned in handle can be used to access the PCI registers + * of this board. + * + * Return: 1 if found 0 if not found. + */ +static int pci_find_device (int deviceID, int vendorID, int deviceIndex, int *handle) +{ + int model, vendor, card, device; + unsigned value, full_id, bus, busMax; + + deviceIndex <<= 8; + + /* for each PCI bus */ + for (bus=0, busMax=0x10000; bus<busMax; bus+=0x10000) { + + /* for each hardware device */ + for (device=0, card=0; card<32; card++, device+=0x800) { + value = PCIEnable | bus | deviceIndex | device; + outportl(PCIAddr, value); + full_id = inportl(PCIData); + + /* get the vendor and model ID */ + vendor = full_id & 0xFFFF; + model = full_id >> 16; + + if (vendor != 0xFFFF) { + /* is this the one we want? */ + if ((deviceID == model) && (vendorID == vendor)) { + *handle = value; + return 1; + } + + /* is it a bridge to a secondary bus? */ + outportl(PCIAddr, value | 8); + + if (((inportl(PCIData) >> 16) == 0x0600) || (full_id==0x00011011)) + busMax += 0x10000; + } + } + } + + return 0; +} + + + +/* Desc: + * + * In : + * Out : + * + * Note: + */ +static unsigned long pci_read_long (int handle, int index) +{ + outportl(PCIAddr, PCIEnable | handle | index); + return inportl(PCIData); +} + + + +/* Desc: + * + * In : + * Out : + * + * Note: + */ +static void pci_write_long (int handle, int index, unsigned long value) +{ + outportl(PCIAddr, PCIEnable | handle | index); + outportl(PCIData, value); +} |