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Diffstat (limited to 'src/panel/gx2_9211.c')
| -rw-r--r-- | src/panel/gx2_9211.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/src/panel/gx2_9211.c b/src/panel/gx2_9211.c new file mode 100644 index 0000000..a60264d --- /dev/null +++ b/src/panel/gx2_9211.c @@ -0,0 +1,292 @@ +/* Copyright (c) 2005 Advanced Micro Devices, Inc. + * + * 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 THE + * AUTHORS OR COPYRIGHT HOLDERS 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. + * + * Neither the name of the Advanced Micro Devices, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * */ + +/* + * File Contents: This file contains the panel library files to the + * GX2 platforms with 9211 support. + * + * SubModule: Geode FlatPanel library + * */ + +#include "92xx.h" +#include "gx2_9211.h" +#include "pnl_defs.h" + +#if defined(_WIN32) /* windows */ +#include "gfx_defs.h" + +extern DEV_STATUS gfx_msr_read(unsigned int device, unsigned int msrRegister, + Q_WORD * msrValue); +extern DEV_STATUS gfx_msr_write(unsigned int device, unsigned int msrRegister, + Q_WORD * msrValue); +#endif + +static unsigned long FPBaseAddr; + +void +SetFPBaseAddr(unsigned long addr) +{ + + FPBaseAddr = addr; +} + +/**************************************************************************** + * protected_mode_access( unsigned long mode, unsigned long width, + * unsigned long addr, unsigned char* pdata ) + * This function provides access to physical memory at the requested address. + * + * mode is: + * GX2_READ or GX2_WRITE (accesses a single byte, word or double word + * depending on the value of "width". Only 1, 2 or 4 supported). + * READ_BYTES, WRITE_BYTES accesses "width" number of bytes (8 bits) + * READ_WORDS, WRITE_WORDS accesses "width" number of words (16 bits) + * READ_DWORDS, WRITE_DWORDS accesses "width" number of dwords (32 + * bits) + * + * width is: + * The size of the access. For READ or WRITE, only 1, 2 and 4 are + * supported. For other modes, width is not limited but will cause + * paging if the block traverses page boundaries. + * + * addr is: + * The physical address being accessed + * + * pdata is: + * A pointer to the data to be read or written into. + * + * NOTE! WORD or DWORD accesses can only be made on WORD or DWORD boundaries! + ****************************************************************************/ +void +protected_mode_access(unsigned long mode, + unsigned long width, unsigned long addr, char *pdata) +{ + void *ptr = (void *)(FPBaseAddr + addr); + + /* type specific buffer pointers */ + char *byte_data = (char *)pdata; + unsigned long *word_data = (unsigned long *)pdata; + unsigned long *dword_data = (unsigned long *)pdata; + + if (mode == GX2_READ) { + switch (width) { + case FOUR_BYTES: + *(dword_data) = (unsigned long)(*(unsigned long *)ptr); + break; + case TWO_BYTES: + *(word_data) = (unsigned long)(*(unsigned long *)ptr); + break; + default: + *(byte_data) = (char)(*(char *)ptr); + break; + } + } /* end GX2_READ */ + else if (mode == GX2_WRITE) { + switch (width) { + case FOUR_BYTES: + *(unsigned long *)ptr = *dword_data; + break; + case TWO_BYTES: + *(unsigned long *)ptr = *word_data; + break; + default: + *(char *)ptr = *byte_data; + break; + } /* end switch(mode) */ + } + /* end case GX2_WRITE */ + return; + +} /* End of protected_mode_access. */ + +/************************************************************************* + * void write_video_reg64_low( unsigned long offset, unsigned long value ) + * + * Writes value to the low 32 bits of the 64 bit memory mapped video + * register indicated by offset. + * This function uses Sys_info.video_reg_base as the base address, so + * the value of offset should be with respect to this base. + *************************************************************************/ +void +write_video_reg64_low(unsigned long offset, unsigned long value) +{ + protected_mode_access(GX2_WRITE, FOUR_BYTES, + FPBaseAddr + offset, (char *)&value); +} /*end write_video_reg64_low() */ + +/************************************************************************* + * unsigned long read_video_reg64_low( unsigned long offset ) + * + * Returns the contents of the low 32 bits of the 64 bit memory mapped + * video register indicated by offset. + * This function uses Sys_info.video_reg_base as the base address, so + * the value of offset should be with respect to this base. + *************************************************************************/ +unsigned long +read_video_reg64_low(unsigned long offset) +{ + unsigned long data; + + protected_mode_access(GX2_READ, FOUR_BYTES, + FPBaseAddr + offset, (char *)&data); + return (data); +} /*end read_video_reg64_low() */ + +/***************************************************************************** + * void Redcloud_fp_reg(int mode, unsigned long address, unsigned long *data) + * + * Writes and reads dwords to the Redcloud flat panel registers in the + * Redcloud Display Filter. There's no clock control, chip select or timing + * to deal with. + * This routine expects the actual GX2 macro definitions for the address. + * + * Parameters: + * mode: An integer value for a GX2_READ or GX2_WRITE operation + * 0 = GX2_Read and 1 = GX2_Write + * address: A dword value representing the offset of the register. + * data: A pointer to a dword value that is to be written in to + * the required register. In case of a Read operation + * this will point to the result of the Read operation. + ****************************************************************************/ +void +Redcloud_fp_reg(int mode, unsigned long address, unsigned long *data) +{ + if (mode == GX2_READ) { + *data = read_video_reg64_low(address); + } else { + write_video_reg64_low(address, *data); + } + +} /* End of Redcloud_fp_reg() */ + +/*------------------------------------------------------------------- + * + * SET_92XX_MODE_PARAMS + * This routine sets the 9211 mode parameters. + * + *-------------------------------------------------------------------*/ + +void +set_Redcloud_92xx_mode_params(int mode) +{ + CS92xx_MODE *pMode = &FPModeParams[mode]; + unsigned long temp_data = 0; + unsigned long base_data; + Q_WORD msrValue; + + /* on a Redcloud, we need to set up the DF pad select MSR */ + if (gfx_msr_read(RC_ID_DF, GX2_VP_MSR_PAD_SELECT, &msrValue) == FOUND) { + msrValue.low &= ~GX2_VP_PAD_SELECT_MASK; + if (pMode->panel_type == PNL_TFT || pMode->panel_type == PNL_TWOP) { + msrValue.low = GX2_VP_PAD_SELECT_TFT; + } else { + msrValue.low = GX2_VP_PAD_SELECT_DSTN; + } + gfx_msr_write(RC_ID_DF, GX2_VP_MSR_PAD_SELECT, &msrValue); + } + + /* Turn the 92xx power off before setting any new parameters. */ + temp_data = pMode->power_management & ~GX2_FP_PM_PWR_ON; + Redcloud_fp_reg(GX2_WRITE, GX2_FP_PWR_MAN, (unsigned long *)&temp_data); + + /* Set 9211 registers using the desired panel settings */ + + Redcloud_fp_reg(GX2_WRITE, GX2_FP_PAN_TIMING1, + (unsigned long *)&pMode->panel_timing1); + + /* On Redcloud, bit 31 is now reserved. */ + temp_data = pMode->panel_timing2 & 0x7FFFFFFF; + Redcloud_fp_reg(GX2_WRITE, GX2_FP_PAN_TIMING2, + (unsigned long *)&temp_data); + + /* On Redcloud TFT parts, set this to 0x70 so all 8 bits per color run + * thru fp crc but only non-TFT parts. Otherwise, set it to be 0x50. + * (source: Larry G.). + */ + if (pMode->panel_type == PNL_TFT || pMode->panel_type == PNL_TWOP) { + temp_data = GX2_FP_CRC_PASS_THRU_MASK; + } else { + temp_data = pMode->rev_C_dither_frc; + } + Redcloud_fp_reg(GX2_WRITE, GX2_FP_DITH_FR_CNTRL, + (unsigned long *)&temp_data); + Redcloud_fp_reg(GX2_WRITE, GX2_FP_BLFSR, + (unsigned long *)&pMode->blue_lsfr_seed); + Redcloud_fp_reg(GX2_WRITE, GX2_FP_RLFSR, + (unsigned long *)&pMode->red_green_lsfr_seed); + + /* Set the memory information, then the power register last. + * This will turn the panel on at the 9211. + */ + + Redcloud_fp_reg(GX2_READ, GX2_FP_FBB, (unsigned long *)&base_data); + if (base_data != 0x41780000) { + base_data = 0x41780000; + Redcloud_fp_reg(GX2_WRITE, GX2_FP_FBB, (unsigned long *)&base_data); + } + + Redcloud_fp_reg(GX2_WRITE, GX2_FP_PWR_MAN, + (unsigned long *)&pMode->power_management); + +} /*end set_92xx_mode_params() */ + +/* ----------------------------------------------------------------------- + * SET_FLAT_PANEL_MODE + * + * This routine sets the specified flat panel moden parameters in + * the 9211. + * Returns PASS if successful, FAIL if the mode parameters could + * not be set. + *------------------------------------------------------------------------*/ + +unsigned char +set_Redcloud_92xx_mode(Pnl_PanelStat * pstat) +{ + int mode; + + /* LOOP THROUGH THE AVAILABLE MODES TO FIND A MATCH */ + + for (mode = 0; mode < NUM_92XX_MODES; mode++) { + if ((FPModeParams[mode].xres == pstat->XRes) && + (FPModeParams[mode].yres == pstat->YRes) && + (FPModeParams[mode].bpp == pstat->Depth) && + (FPModeParams[mode].panel_type == pstat->Type) && + (FPModeParams[mode].color_type == pstat->MonoColor)) { + + /* SET THE 92xx FOR THE SELECTED MODE */ + set_Redcloud_92xx_mode_params(mode); + return TRUE; + } /* end if() */ + } /* end for() */ + return FALSE; + +} /* end set_Centaurus_92xx_mode() */ + +void +Redcloud_9211init(Pnl_PanelStat * pstat) +{ + + set_Redcloud_92xx_mode(pstat); + +} |