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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nsc/gfx/gfx_defs.h,v 1.2 2002/12/11 22:51:01 dawes Exp $ */
/*
* $Workfile: gfx_defs.h $
*
* This header file contains the macros used to access the hardware. These
* macros assume that 32-bit access is possible, which is true for most
* applications. Projects using 16-bit compilers (the Windows98 display
* driver) and special purpose applications (such as Darwin) need to define
* their own versions of these macros, which typically call a subroutine.
*
* NSC_LIC_ALTERNATIVE_PREAMBLE
*
* Revision 1.0
*
* National Semiconductor Alternative GPL-BSD License
*
* National Semiconductor Corporation licenses this software
* ("Software"):
*
* Durango
*
* under one of the two following licenses, depending on how the
* Software is received by the Licensee.
*
* If this Software is received as part of the Linux Framebuffer or
* other GPL licensed software, then the GPL license designated
* NSC_LIC_GPL applies to this Software; in all other circumstances
* then the BSD-style license designated NSC_LIC_BSD shall apply.
*
* END_NSC_LIC_ALTERNATIVE_PREAMBLE */
/* NSC_LIC_BSD
*
* National Semiconductor Corporation Open Source License for Durango
*
* (BSD License with Export Notice)
*
* Copyright (c) 1999-2001
* National Semiconductor Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of the National Semiconductor Corporation nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE,
* INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF
* YOUR JURISDICTION. It is licensee's responsibility to comply with
* any export regulations applicable in licensee's jurisdiction. Under
* CURRENT (2001) U.S. export regulations this software
* is eligible for export from the U.S. and can be downloaded by or
* otherwise exported or reexported worldwide EXCEPT to U.S. embargoed
* destinations which include Cuba, Iraq, Libya, North Korea, Iran,
* Syria, Sudan, Afghanistan and any other country to which the U.S.
* has embargoed goods and services.
*
* END_NSC_LIC_BSD */
/* NSC_LIC_GPL
*
* National Semiconductor Corporation Gnu General Public License for Durango
*
* (GPL License with Export Notice)
*
* Copyright (c) 1999-2001
* National Semiconductor Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted under the terms of the GNU General
* Public License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version
*
* In addition to the terms of the GNU General Public License, neither
* the name of the National Semiconductor Corporation nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* NATIONAL SEMICONDUCTOR CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE,
* INTELLECTUAL PROPERTY INFRINGEMENT, OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE. See the GNU General Public License for more details.
*
* EXPORT LAWS: THIS LICENSE ADDS NO RESTRICTIONS TO THE EXPORT LAWS OF
* YOUR JURISDICTION. It is licensee's responsibility to comply with
* any export regulations applicable in licensee's jurisdiction. Under
* CURRENT (2001) U.S. export regulations this software
* is eligible for export from the U.S. and can be downloaded by or
* otherwise exported or reexported worldwide EXCEPT to U.S. embargoed
* destinations which include Cuba, Iraq, Libya, North Korea, Iran,
* Syria, Sudan, Afghanistan and any other country to which the U.S.
* has embargoed goods and services.
*
* You should have received a copy of the GNU General Public License
* along with this file; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* END_NSC_LIC_GPL */
#ifndef _gfx_defs_h
#define _gfx_defs_h
/* ACCESS TO THE CPU REGISTERS */
#define WRITE_REG8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_regptr + (offset))) = (value)
#define WRITE_REG16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_regptr + (offset))) = (value)
#define WRITE_REG32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_regptr + (offset))) = (value)
#define READ_REG16(offset) \
(*(volatile unsigned short *)(gfx_virt_regptr + (offset)))
#define READ_REG32(offset) \
(*(volatile unsigned long *)(gfx_virt_regptr + (offset)))
/* ACCESS TO THE ACCELERATOR REGISTERS (REDCLOUD ONLY) */
#define WRITE_GP8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_gpptr + (offset))) = (value)
#define WRITE_GP16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_gpptr + (offset))) = (value)
#define WRITE_GP32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_gpptr + (offset))) = (value)
#define READ_GP16(offset) \
(*(volatile unsigned short *)(gfx_virt_gpptr + (offset)))
#define READ_GP32(offset) \
(*(volatile unsigned long *)(gfx_virt_gpptr + (offset)))
/* ACCESS TO THE FRAME BUFFER */
#define WRITE_FB32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_fbptr + (offset))) = (value)
#define WRITE_FB16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_fbptr + (offset))) = (value)
#define WRITE_FB8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_fbptr + (offset))) = (value)
/* ACCESS TO THE VIDEO HARDWARE */
#define READ_VID32(offset) \
(*(volatile unsigned long *)(gfx_virt_vidptr + (offset)))
#define WRITE_VID32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_vidptr + (offset))) = (value)
/* ACCESS TO THE VIP HARDWARE */
#define READ_VIP32(offset) \
(*(volatile unsigned long *)(gfx_virt_vipptr + (offset)))
#define WRITE_VIP32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_vipptr + (offset))) = (value)
/* ACCESS TO THE SCRATCHPAD RAM */
#define WRITE_SCRATCH32(offset, value) \
(*(volatile unsigned long *)(gfx_virt_spptr + (offset))) = (value)
#define WRITE_SCRATCH16(offset, value) \
(*(volatile unsigned short *)(gfx_virt_spptr + (offset))) = (value)
#define WRITE_SCRATCH8(offset, value) \
(*(volatile unsigned char *)(gfx_virt_spptr + (offset))) = (value)
#define READ_SCRATCH16(offset) \
(*(volatile unsigned short *)(gfx_virt_spptr + (offset)))
#define READ_SCRATCH32(offset) \
(*(volatile unsigned long *)(gfx_virt_spptr + (offset)))
/* ACCESS TO MSRS */
void gfx_msr_asm_write(unsigned short msrReg, unsigned long msrAddr,
unsigned long *ptrHigh, unsigned long *ptrLow);
void gfx_msr_asm_read(unsigned short msrReg, unsigned long msrAddr,
unsigned long *ptrHigh, unsigned long *ptrLow);
#define MSR_READ( MBD_MSR_CAP, address, valueHigh_ptr, valueLow_ptr ) \
gfx_msr_asm_read( ((unsigned short)(MBD_MSR_CAP)), address, valueHigh_ptr, valueLow_ptr )
#define MSR_WRITE( MBD_MSR_CAP, address, valueHigh_ptr, valueLow_ptr ) \
gfx_msr_asm_write( ((unsigned short)(MBD_MSR_CAP)), address, valueHigh_ptr, valueLow_ptr )
/* OPTIMIZATION MACROS */
/* The following macros have been added to allow more complete optimization of the */
/* bitmap-to-screen routines in Durango. These routines also allow Durango to run */
/* properly within a 16-bit environment. */
/************************************************************************************
* Macro: SET_SCRATCH_BASE
* Purpose: Record the base address of the BLT buffers. The WRITE_SCRATCH_STRINGxx
* macros assume that this address is used as the base for all writes.
*
* Arguments:
* scratch_base - offset into the GX base for the first BLT buffer byte.
************************************************************************************/
#define SET_SCRATCH_BASE(scratch_base) \
{ gfx_gx1_scratch_base = (unsigned long)gfx_virt_spptr + scratch_base; }
#ifdef GFX_OPTIMIZE_ASSEMBLY
/************************************************************************************
* Macro: WRITE_SCRATCH_STRING
* Purpose: Write multiple bytes to the scratchpad buffer
*
* Arguments:
* dword_bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* bytes_extra - number of non-DWORD aligned bytes
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
************************************************************************************/
#define WRITE_SCRATCH_STRING(dwords, bytes, array, array_offset) \
{ \
_asm { mov edi, gfx_gx1_scratch_base } \
_asm { mov esi, array } \
_asm { add esi, array_offset } \
_asm { mov ecx, dwords } \
_asm { shr ecx, 2 } \
_asm { rep movsd } \
_asm { mov ecx, bytes } \
_asm { rep movsb } \
}
/************************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING32
* Purpose: Write multiple dwords to the Frame buffer
*
* Arguments:
* fboffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
************************************************************************************/
#define WRITE_FRAME_BUFFER_STRING32(fboffset, bytes, array, array_offset) \
{ \
_asm { mov ecx, bytes } \
_asm { shr ecx, 2 } \
_asm { cld } \
_asm { mov edi, gfx_virt_fbptr } \
_asm { add edi, fboffset } \
_asm { mov esi, array } \
_asm { add esi, array_offset } \
_asm { rep movsd } \
}
#else
/************************************************************************************
* Macro: WRITE_SCRATCH_STRING
* Purpose: Write multiple bytes to the scratchpad buffer
*
* Arguments:
* dword_bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* bytes_extra - number of non-DWORD aligned bytes
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
************************************************************************************/
#define WRITE_SCRATCH_STRING(dword_bytes, bytes_extra, array, array_offset) \
{ \
unsigned long i, j; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
\
/* WRITE DWORDS */ \
\
for (i = 0; i < dword_bytes; i += 4) \
*((volatile unsigned long *)(gfx_gx1_scratch_base + i)) = *((unsigned long *)(aroffset + i)); \
\
/* WRITE BYTES */ \
\
j = i + bytes_extra; \
while (i < j) \
{ \
*((volatile unsigned char *)(gfx_gx1_scratch_base + i)) = *((unsigned char *)(aroffset + i)); \
i++; \
} \
}
/************************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING32
* Purpose: Write multiple dwords to the Frame buffer
*
* Arguments:
* fboffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number will always.
* be a multiple of 4. It cannot be modified within the
* macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
************************************************************************************/
#define WRITE_FRAME_BUFFER_STRING32(fboffset, bytes, array, array_offset) \
{ \
unsigned long i; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
for (i = 0; i < bytes; i += 4) \
WRITE_FB32 ((fboffset) + i, *((unsigned long *)(aroffset + i))); \
}
#endif
/************************************************************************************
* Macro: WRITE_FRAME_BUFFER_STRING8
* Purpose: Write multiple bytes to the frame buffer
*
* Arguments:
* spoffset - offset to the beginning frame buffer location.
* bytes - number of bytes to transfer. This number cannot be modified within the
* macro (ex. bytes -= 4)
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
************************************************************************************/
#define WRITE_FRAME_BUFFER_STRING8(fboffset, bytes, array, array_offset) \
{ \
unsigned long i; \
unsigned long aroffset = (unsigned long)array + (array_offset); \
for (i = 0; i < bytes; i++) \
WRITE_FB8 ((fboffset) + i, *((unsigned char *)(aroffset + i))); \
}
/************************************************************************************
* Macro: WRITE_GPREG_STRING32
* Purpose: Write multiple dwords to one GP register.
*
* Arguments:
* regoffset - Offset of the GP register to be written.
* dwords - number of dwords to transfer. It cannot be modified within the
* macro (ex. dwords--)
* counter - name of a counter variable that can be used in a loop. This
* is used to optimize macros written in C.
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
* temp - name of a temporary variable that can be used for calculations.
* This argument is also used for C-only macros.
************************************************************************************/
#define WRITE_GPREG_STRING32(regoffset, dwords, counter, array, array_offset, temp) \
{ \
temp = (unsigned long)array + (array_offset); \
for (counter = 0; counter < dwords; counter++) \
WRITE_GP32 (regoffset, *((unsigned long *)temp + counter)); \
}
/************************************************************************************
* Macro: WRITE_GPREG_STRING8
* Purpose: Write 4 or less bytes to one GP register.
*
* Arguments:
* regoffset - Offset of the GP register to be written.
* bytes - number of bytes to transfer. This number will always.
* be less than 4. It cannot be modified within the
* macro (ex. bytes--)
* shift - name of a shift variable that can be used as a shift count.
* This variable holds the initial shift value into the GP register.
* counter - name of a counter variable that can be used in a loop. This
* is used to optimize macros written in C.
* array - pointer to an array of unsigned characters.
* array_offset - offset into the array from which to pull the first character.
* temp1 - name of a temporary variable that can be used for calculations.
* This argument is also used for C-only macros.
* temp2 - name of a temporary variable that can be used for calculations.
* This argument is also used for C-only macros.
************************************************************************************/
#define WRITE_GPREG_STRING8(regoffset, bytes, shift, counter, array, array_offset, temp1, temp2) \
{ \
if (bytes) \
{ \
temp1 = (unsigned long)array + (array_offset); \
temp2 = 0; \
for (counter = 0; counter < bytes; counter++) \
{ \
temp2 |= ((unsigned long)(*((unsigned char *)(temp1 + counter)))) << shift; \
shift += 8; \
} \
WRITE_GP32 (regoffset, temp2); \
} \
}
#endif /* _gfx_defs_h */
/* END OF FILE */
|
