305 lines
8.7 KiB
C
305 lines
8.7 KiB
C
/* Copyright (c) 2003-2005 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Neither the name of the Advanced Micro Devices, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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* */
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/*
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* This is the main file used to add Durango graphics support to a software
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* project. The main reason to have a single file include the other files
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* is that it centralizes the location of the compiler options. This file
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* should be tuned for a specific implementation, and then modified as needed
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* for new Durango releases. The releases.txt file indicates any updates to
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* this main file, such as a new definition for a new hardware platform.
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*
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* In other words, this file should be copied from the Durango source files
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* once when a software project starts, and then maintained as necessary.
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* It should not be recopied with new versions of Durango unless the
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* developer is willing to tune the file again for the specific project.
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* */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gfx_rtns.h"
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#include "gfx_defs.h"
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#include "gfx_regs.h"
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#define GU2_WAIT_PENDING \
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while(READ_GP32(MGP_BLT_STATUS) & MGP_BS_BLT_PENDING)
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#define GU2_WAIT_HALF_EMPTY \
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while(!(READ_GP32(MGP_BLT_STATUS) & MGP_BS_HALF_EMPTY))
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extern unsigned long gu2_pitch;
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extern unsigned long gu2_xshift;
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extern unsigned short GFXpatternFlags;
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extern unsigned long gu2_rop32;
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extern unsigned short gu2_blt_mode;
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void gfx_write_reg8(unsigned long offset, unsigned char value);
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void gfx_write_reg16(unsigned long offset, unsigned short value);
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void gfx_write_reg32(unsigned long offset, unsigned long value);
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unsigned short gfx_read_reg16(unsigned long offset);
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unsigned long gfx_read_reg32(unsigned long offset);
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void gfx_write_vid32(unsigned long offset, unsigned long value);
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unsigned long gfx_read_vid32(unsigned long offset);
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unsigned long gfx_read_vip32(unsigned long offset);
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void gfx_write_vip32(unsigned long offset, unsigned long value);
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void gfx_mono_bitmap_to_screen_blt_swp(unsigned short srcx,
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unsigned short srcy,
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unsigned short dstx,
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unsigned short dsty,
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unsigned short width,
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unsigned short height, unsigned char *data, short pitch);
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unsigned int GetVideoMemSize(void);
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/* ROUTINES added accessing hardware reg */
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void
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gfx_write_reg8(unsigned long offset, unsigned char value)
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{
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WRITE_REG8(offset, value);
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}
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void
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gfx_write_reg16(unsigned long offset, unsigned short value)
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{
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WRITE_REG16(offset, value);
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}
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void
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gfx_write_reg32(unsigned long offset, unsigned long value)
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{
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WRITE_REG32(offset, value);
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}
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unsigned short
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gfx_read_reg16(unsigned long offset)
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{
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unsigned short value;
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value = READ_REG16(offset);
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return value;
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}
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unsigned long
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gfx_read_reg32(unsigned long offset)
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{
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unsigned long value;
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value = READ_REG32(offset);
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return value;
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}
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void
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gfx_write_vid32(unsigned long offset, unsigned long value)
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{
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WRITE_VID32(offset, value);
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}
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unsigned long
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gfx_read_vid32(unsigned long offset)
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{
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unsigned long value;
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value = READ_VID32(offset);
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return value;
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}
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/*Addition for the VIP code */
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unsigned long
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gfx_read_vip32(unsigned long offset)
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{
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unsigned long value;
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value = READ_VIP32(offset);
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return value;
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}
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void
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gfx_write_vip32(unsigned long offset, unsigned long value)
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{
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WRITE_VIP32(offset, value);
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}
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#define SWAP_BITS_IN_BYTES(v) \
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(((0x01010101 & (v)) << 7) | ((0x02020202 & (v)) << 5) | \
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((0x04040404 & (v)) << 3) | ((0x08080808 & (v)) << 1) | \
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((0x10101010 & (v)) >> 1) | ((0x20202020 & (v)) >> 3) | \
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((0x40404040 & (v)) >> 5) | ((0x80808080 & (v)) >> 7))
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#define WRITE_GPREG_STRING32_SWP(regoffset, dwords, \
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counter, array, array_offset, temp) \
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{ \
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temp = (unsigned long)array + (array_offset); \
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for (counter = 0; counter < dwords; counter++) \
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WRITE_GP32 (regoffset, \
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SWAP_BITS_IN_BYTES(*((unsigned long *)temp + counter))); \
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}
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void
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gfx_mono_bitmap_to_screen_blt_swp(unsigned short srcx, unsigned short srcy,
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unsigned short dstx, unsigned short dsty,
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unsigned short width, unsigned short height,
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unsigned char *data, short pitch)
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{
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unsigned long dstoffset, size, bytes;
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unsigned long offset, temp_offset, temp1 = 0, temp2 = 0;
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unsigned long i, j = 0, fifo_lines, dwords_extra, bytes_extra;
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unsigned long shift = 0;
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size = (((unsigned long)width) << 16) | height;
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/* CALCULATE STARTING OFFSETS */
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offset = (unsigned long)srcy *pitch + ((unsigned long)srcx >> 3);
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dstoffset = (unsigned long)dsty *gu2_pitch +
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(((unsigned long)dstx) << gu2_xshift);
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/* CHECK IF PATTERN ORIGINS NEED TO BE SET */
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if (GFXpatternFlags) {
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/* COMBINE X AND Y PATTERN ORIGINS WITH OFFSET */
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dstoffset |= ((unsigned long)(dstx & 7)) << 26;
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dstoffset |= ((unsigned long)(dsty & 7)) << 29;
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}
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bytes = ((srcx & 7) + width + 7) >> 3;
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fifo_lines = bytes >> 5;
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dwords_extra = (bytes & 0x0000001Cl) >> 2;
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bytes_extra = bytes & 0x00000003l;
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/* POLL UNTIL ABLE TO WRITE TO THE REGISTERS */
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/* Put off poll for as long as possible (do most calculations first). */
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/* The source offset is always 0 since we allow misaligned dword reads. */
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/* Need to wait for busy instead of pending, since hardware clears */
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/* the host data FIFO at the beginning of a BLT. */
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GU2_WAIT_PENDING;
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WRITE_GP32(MGP_RASTER_MODE, gu2_rop32);
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WRITE_GP32(MGP_SRC_OFFSET, ((unsigned long)srcx & 7) << 26);
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WRITE_GP32(MGP_DST_OFFSET, dstoffset);
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WRITE_GP32(MGP_WID_HEIGHT, size);
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WRITE_GP32(MGP_STRIDE, gu2_pitch);
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WRITE_GP16(MGP_BLT_MODE,
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gu2_blt_mode | MGP_BM_SRC_HOST | MGP_BM_SRC_MONO);
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/* WAIT FOR BLT TO BE LATCHED */
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GU2_WAIT_PENDING;
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/* WRITE ALL OF THE DATA TO THE HOST SOURCE REGISTER */
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while (height--) {
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temp_offset = offset;
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/* WRITE ALL FULL FIFO LINES */
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for (i = 0; i < fifo_lines; i++) {
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GU2_WAIT_HALF_EMPTY;
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WRITE_GPREG_STRING32_SWP(MGP_HST_SOURCE, 8, j, data, temp_offset,
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temp1);
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temp_offset += 32;
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}
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/* WRITE ALL FULL DWORDS */
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GU2_WAIT_HALF_EMPTY;
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if (dwords_extra) {
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WRITE_GPREG_STRING32_SWP(MGP_HST_SOURCE, dwords_extra, i, data,
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temp_offset, temp1);
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temp_offset += (dwords_extra << 2);
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}
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/* WRITE REMAINING BYTES */
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shift = 0;
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if (bytes_extra)
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WRITE_GPREG_STRING8(MGP_HST_SOURCE, bytes_extra, shift, i, data,
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temp_offset, temp1, temp2);
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offset += pitch;
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}
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}
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unsigned int
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GetVideoMemSize(void)
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{
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unsigned int graphicsMemBaseAddr;
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unsigned int totalMem = 0;
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int i;
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unsigned int graphicsMemMask, graphicsMemShift;
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unsigned int mcBankCfg = gfx_read_reg32(0x8408);
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unsigned int dimmShift = 4;
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/* Read graphics base address. */
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graphicsMemBaseAddr = gfx_read_reg32(0x8414);
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graphicsMemMask = 0x7FF;
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graphicsMemShift = 19;
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/* Calculate total memory size for GXm. */
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for (i = 0; i < 2; i++) {
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if (((mcBankCfg >> dimmShift) & 0x7) != 0x7) {
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switch ((mcBankCfg >> (dimmShift + 4)) & 0x7) {
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case 0:
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totalMem += 0x400000;
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break;
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case 1:
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totalMem += 0x800000;
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break;
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case 2:
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totalMem += 0x1000000;
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break;
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case 3:
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totalMem += 0x2000000;
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break;
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case 4:
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totalMem += 0x4000000;
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break;
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case 5:
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totalMem += 0x8000000;
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break;
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case 6:
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totalMem += 0x10000000;
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break;
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case 7:
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totalMem += 0x20000000;
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break;
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default:
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break;
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}
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}
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dimmShift += 16;
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}
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/* Calculate graphics memory base address */
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graphicsMemBaseAddr &= graphicsMemMask;
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graphicsMemBaseAddr <<= graphicsMemShift;
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return (totalMem - graphicsMemBaseAddr);
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}
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/* END OF FILE */
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