/* Geode LX framebuffer driver * * Copyright (C) 2006-2007, Advanced Micro Devices,Inc. * * This program is free software; you can redistribute it and/or modify it * 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. */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/fb.h> #include <linux/uaccess.h> #include <linux/delay.h> #include <asm/geode.h> #include "lxfb.h" /* TODO * Support panel scaling * Add acceleration * Add support for interlacing (TV out) * Support compression */ /* This is the complete list of PLL frequencies that we can set - * we will choose the closest match to the incoming clock. * freq is the frequency of the dotclock * 1000 (for example, * 24823 = 24.983 Mhz). * pllval is the corresponding PLL value */ static const struct { unsigned int pllval; unsigned int freq; } pll_table[] = { { 0x000131AC, 6231 }, { 0x0001215D, 6294 }, { 0x00011087, 6750 }, { 0x0001216C, 7081 }, { 0x0001218D, 7140 }, { 0x000110C9, 7800 }, { 0x00013147, 7875 }, { 0x000110A7, 8258 }, { 0x00012159, 8778 }, { 0x00014249, 8875 }, { 0x00010057, 9000 }, { 0x0001219A, 9472 }, { 0x00012158, 9792 }, { 0x00010045, 10000 }, { 0x00010089, 10791 }, { 0x000110E7, 11225 }, { 0x00012136, 11430 }, { 0x00013207, 12375 }, { 0x00012187, 12500 }, { 0x00014286, 14063 }, { 0x000110E5, 15016 }, { 0x00014214, 16250 }, { 0x00011105, 17045 }, { 0x000131E4, 18563 }, { 0x00013183, 18750 }, { 0x00014284, 19688 }, { 0x00011104, 20400 }, { 0x00016363, 23625 }, { 0x000031AC, 24923 }, { 0x0000215D, 25175 }, { 0x00001087, 27000 }, { 0x0000216C, 28322 }, { 0x0000218D, 28560 }, { 0x000010C9, 31200 }, { 0x00003147, 31500 }, { 0x000010A7, 33032 }, { 0x00002159, 35112 }, { 0x00004249, 35500 }, { 0x00000057, 36000 }, { 0x0000219A, 37889 }, { 0x00002158, 39168 }, { 0x00000045, 40000 }, { 0x00000089, 43163 }, { 0x000010E7, 44900 }, { 0x00002136, 45720 }, { 0x00003207, 49500 }, { 0x00002187, 50000 }, { 0x00004286, 56250 }, { 0x000010E5, 60065 }, { 0x00004214, 65000 }, { 0x00001105, 68179 }, { 0x000031E4, 74250 }, { 0x00003183, 75000 }, { 0x00004284, 78750 }, { 0x00001104, 81600 }, { 0x00006363, 94500 }, { 0x00005303, 97520 }, { 0x00002183, 100187 }, { 0x00002122, 101420 }, { 0x00001081, 108000 }, { 0x00006201, 113310 }, { 0x00000041, 119650 }, { 0x000041A1, 129600 }, { 0x00002182, 133500 }, { 0x000041B1, 135000 }, { 0x00000051, 144000 }, { 0x000041E1, 148500 }, { 0x000062D1, 157500 }, { 0x000031A1, 162000 }, { 0x00000061, 169203 }, { 0x00004231, 172800 }, { 0x00002151, 175500 }, { 0x000052E1, 189000 }, { 0x00000071, 192000 }, { 0x00003201, 198000 }, { 0x00004291, 202500 }, { 0x00001101, 204750 }, { 0x00007481, 218250 }, { 0x00004170, 229500 }, { 0x00006210, 234000 }, { 0x00003140, 251182 }, { 0x00006250, 261000 }, { 0x000041C0, 278400 }, { 0x00005220, 280640 }, { 0x00000050, 288000 }, { 0x000041E0, 297000 }, { 0x00002130, 320207 } }; static void lx_set_dotpll(u32 pllval) { u32 dotpll_lo, dotpll_hi; int i; rdmsr(MSR_GLCP_DOTPLL, dotpll_lo, dotpll_hi); if ((dotpll_lo & MSR_GLCP_DOTPLL_LOCK) && (dotpll_hi == pllval)) return; dotpll_hi = pllval; dotpll_lo &= ~(MSR_GLCP_DOTPLL_BYPASS | MSR_GLCP_DOTPLL_HALFPIX); dotpll_lo |= MSR_GLCP_DOTPLL_DOTRESET; wrmsr(MSR_GLCP_DOTPLL, dotpll_lo, dotpll_hi); /* Wait 100us for the PLL to lock */ udelay(100); /* Now, loop for the lock bit */ for (i = 0; i < 1000; i++) { rdmsr(MSR_GLCP_DOTPLL, dotpll_lo, dotpll_hi); if (dotpll_lo & MSR_GLCP_DOTPLL_LOCK) break; } /* Clear the reset bit */ dotpll_lo &= ~MSR_GLCP_DOTPLL_DOTRESET; wrmsr(MSR_GLCP_DOTPLL, dotpll_lo, dotpll_hi); } /* Set the clock based on the frequency specified by the current mode */ static void lx_set_clock(struct fb_info *info) { unsigned int diff, min, best = 0; unsigned int freq, i; freq = (unsigned int) (1000000000 / info->var.pixclock); min = abs(pll_table[0].freq - freq); for (i = 0; i < ARRAY_SIZE(pll_table); i++) { diff = abs(pll_table[i].freq - freq); if (diff < min) { min = diff; best = i; } } lx_set_dotpll(pll_table[best].pllval & 0x00017FFF); } static void lx_graphics_disable(struct fb_info *info) { struct lxfb_par *par = info->par; unsigned int val, gcfg; /* Note: This assumes that the video is in a quitet state */ write_vp(par, VP_A1T, 0); write_vp(par, VP_A2T, 0); write_vp(par, VP_A3T, 0); /* Turn off the VGA and video enable */ val = read_dc(par, DC_GENERAL_CFG) & ~(DC_GENERAL_CFG_VGAE | DC_GENERAL_CFG_VIDE); write_dc(par, DC_GENERAL_CFG, val); val = read_vp(par, VP_VCFG) & ~VP_VCFG_VID_EN; write_vp(par, VP_VCFG, val); write_dc(par, DC_IRQ, DC_IRQ_MASK | DC_IRQ_VIP_VSYNC_LOSS_IRQ_MASK | DC_IRQ_STATUS | DC_IRQ_VIP_VSYNC_IRQ_STATUS); val = read_dc(par, DC_GENLK_CTL) & ~DC_GENLK_CTL_GENLK_EN; write_dc(par, DC_GENLK_CTL, val); val = read_dc(par, DC_CLR_KEY); write_dc(par, DC_CLR_KEY, val & ~DC_CLR_KEY_CLR_KEY_EN); /* turn off the panel */ write_fp(par, FP_PM, read_fp(par, FP_PM) & ~FP_PM_P); val = read_vp(par, VP_MISC) | VP_MISC_DACPWRDN; write_vp(par, VP_MISC, val); /* Turn off the display */ val = read_vp(par, VP_DCFG); write_vp(par, VP_DCFG, val & ~(VP_DCFG_CRT_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN | VP_DCFG_DAC_BL_EN)); gcfg = read_dc(par, DC_GENERAL_CFG); gcfg &= ~(DC_GENERAL_CFG_CMPE | DC_GENERAL_CFG_DECE); write_dc(par, DC_GENERAL_CFG, gcfg); /* Turn off the TGEN */ val = read_dc(par, DC_DISPLAY_CFG); val &= ~DC_DISPLAY_CFG_TGEN; write_dc(par, DC_DISPLAY_CFG, val); /* Wait 1000 usecs to ensure that the TGEN is clear */ udelay(1000); /* Turn off the FIFO loader */ gcfg &= ~DC_GENERAL_CFG_DFLE; write_dc(par, DC_GENERAL_CFG, gcfg); /* Lastly, wait for the GP to go idle */ do { val = read_gp(par, GP_BLT_STATUS); } while ((val & GP_BLT_STATUS_PB) || !(val & GP_BLT_STATUS_CE)); } static void lx_graphics_enable(struct fb_info *info) { struct lxfb_par *par = info->par; u32 temp, config; /* Set the video request register */ write_vp(par, VP_VRR, 0); /* Set up the polarities */ config = read_vp(par, VP_DCFG); config &= ~(VP_DCFG_CRT_SYNC_SKW | VP_DCFG_PWR_SEQ_DELAY | VP_DCFG_CRT_HSYNC_POL | VP_DCFG_CRT_VSYNC_POL); config |= (VP_DCFG_CRT_SYNC_SKW_DEFAULT | VP_DCFG_PWR_SEQ_DELAY_DEFAULT | VP_DCFG_GV_GAM); if (info->var.sync & FB_SYNC_HOR_HIGH_ACT) config |= VP_DCFG_CRT_HSYNC_POL; if (info->var.sync & FB_SYNC_VERT_HIGH_ACT) config |= VP_DCFG_CRT_VSYNC_POL; if (par->output & OUTPUT_PANEL) { u32 msrlo, msrhi; write_fp(par, FP_PT1, 0); write_fp(par, FP_PT2, FP_PT2_SCRC); write_fp(par, FP_DFC, FP_DFC_BC); msrlo = MSR_LX_MSR_PADSEL_TFT_SEL_LOW; msrhi = MSR_LX_MSR_PADSEL_TFT_SEL_HIGH; wrmsr(MSR_LX_MSR_PADSEL, msrlo, msrhi); } if (par->output & OUTPUT_CRT) { config |= VP_DCFG_CRT_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN | VP_DCFG_DAC_BL_EN; } write_vp(par, VP_DCFG, config); /* Turn the CRT dacs back on */ if (par->output & OUTPUT_CRT) { temp = read_vp(par, VP_MISC); temp &= ~(VP_MISC_DACPWRDN | VP_MISC_APWRDN); write_vp(par, VP_MISC, temp); } /* Turn the panel on (if it isn't already) */ if (par->output & OUTPUT_PANEL) write_fp(par, FP_PM, read_fp(par, FP_PM) | FP_PM_P); } unsigned int lx_framebuffer_size(void) { unsigned int val; if (!geode_has_vsa2()) { uint32_t hi, lo; /* The number of pages is (PMAX - PMIN)+1 */ rdmsr(MSR_GLIU_P2D_RO0, lo, hi); /* PMAX */ val = ((hi & 0xff) << 12) | ((lo & 0xfff00000) >> 20); /* PMIN */ val -= (lo & 0x000fffff); val += 1; /* The page size is 4k */ return (val << 12); } /* The frame buffer size is reported by a VSM in VSA II */ /* Virtual Register Class = 0x02 */ /* VG_MEM_SIZE (1MB units) = 0x00 */ outw(VSA_VR_UNLOCK, VSA_VRC_INDEX); outw(VSA_VR_MEM_SIZE, VSA_VRC_INDEX); val = (unsigned int)(inw(VSA_VRC_DATA)) & 0xFE; return (val << 20); } void lx_set_mode(struct fb_info *info) { struct lxfb_par *par = info->par; u64 msrval; unsigned int max, dv, val, size; unsigned int gcfg, dcfg; int hactive, hblankstart, hsyncstart, hsyncend, hblankend, htotal; int vactive, vblankstart, vsyncstart, vsyncend, vblankend, vtotal; /* Unlock the DC registers */ write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); lx_graphics_disable(info); lx_set_clock(info); /* Set output mode */ rdmsrl(MSR_LX_GLD_MSR_CONFIG, msrval); msrval &= ~MSR_LX_GLD_MSR_CONFIG_FMT; if (par->output & OUTPUT_PANEL) { msrval |= MSR_LX_GLD_MSR_CONFIG_FMT_FP; if (par->output & OUTPUT_CRT) msrval |= MSR_LX_GLD_MSR_CONFIG_FPC; else msrval &= ~MSR_LX_GLD_MSR_CONFIG_FPC; } else msrval |= MSR_LX_GLD_MSR_CONFIG_FMT_CRT; wrmsrl(MSR_LX_GLD_MSR_CONFIG, msrval); /* Clear the various buffers */ /* FIXME: Adjust for panning here */ write_dc(par, DC_FB_ST_OFFSET, 0); write_dc(par, DC_CB_ST_OFFSET, 0); write_dc(par, DC_CURS_ST_OFFSET, 0); /* FIXME: Add support for interlacing */ /* FIXME: Add support for scaling */ val = read_dc(par, DC_GENLK_CTL); val &= ~(DC_GENLK_CTL_ALPHA_FLICK_EN | DC_GENLK_CTL_FLICK_EN | DC_GENLK_CTL_FLICK_SEL_MASK); /* Default scaling params */ write_dc(par, DC_GFX_SCALE, (0x4000 << 16) | 0x4000); write_dc(par, DC_IRQ_FILT_CTL, 0); write_dc(par, DC_GENLK_CTL, val); /* FIXME: Support compression */ if (info->fix.line_length > 4096) dv = DC_DV_CTL_DV_LINE_SIZE_8K; else if (info->fix.line_length > 2048) dv = DC_DV_CTL_DV_LINE_SIZE_4K; else if (info->fix.line_length > 1024) dv = DC_DV_CTL_DV_LINE_SIZE_2K; else dv = DC_DV_CTL_DV_LINE_SIZE_1K; max = info->fix.line_length * info->var.yres; max = (max + 0x3FF) & 0xFFFFFC00; write_dc(par, DC_DV_TOP, max | DC_DV_TOP_DV_TOP_EN); val = read_dc(par, DC_DV_CTL) & ~DC_DV_CTL_DV_LINE_SIZE; write_dc(par, DC_DV_CTL, val | dv); size = info->var.xres * (info->var.bits_per_pixel >> 3); write_dc(par, DC_GFX_PITCH, info->fix.line_length >> 3); write_dc(par, DC_LINE_SIZE, (size + 7) >> 3); /* Set default watermark values */ rdmsrl(MSR_LX_SPARE_MSR, msrval); msrval &= ~(MSR_LX_SPARE_MSR_DIS_CFIFO_HGO | MSR_LX_SPARE_MSR_VFIFO_ARB_SEL | MSR_LX_SPARE_MSR_LOAD_WM_LPEN_M | MSR_LX_SPARE_MSR_WM_LPEN_OVRD); msrval |= MSR_LX_SPARE_MSR_DIS_VIFO_WM | MSR_LX_SPARE_MSR_DIS_INIT_V_PRI; wrmsrl(MSR_LX_SPARE_MSR, msrval); gcfg = DC_GENERAL_CFG_DFLE; /* Display fifo enable */ gcfg |= (0x6 << DC_GENERAL_CFG_DFHPSL_SHIFT) | /* default priority */ (0xb << DC_GENERAL_CFG_DFHPEL_SHIFT); gcfg |= DC_GENERAL_CFG_FDTY; /* Set the frame dirty mode */ dcfg = DC_DISPLAY_CFG_VDEN; /* Enable video data */ dcfg |= DC_DISPLAY_CFG_GDEN; /* Enable graphics */ dcfg |= DC_DISPLAY_CFG_TGEN; /* Turn on the timing generator */ dcfg |= DC_DISPLAY_CFG_TRUP; /* Update timings immediately */ dcfg |= DC_DISPLAY_CFG_PALB; /* Palette bypass in > 8 bpp modes */ dcfg |= DC_DISPLAY_CFG_VISL; dcfg |= DC_DISPLAY_CFG_DCEN; /* Always center the display */ /* Set the current BPP mode */ switch (info->var.bits_per_pixel) { case 8: dcfg |= DC_DISPLAY_CFG_DISP_MODE_8BPP; break; case 16: dcfg |= DC_DISPLAY_CFG_DISP_MODE_16BPP; break; case 32: case 24: dcfg |= DC_DISPLAY_CFG_DISP_MODE_24BPP; break; } /* Now - set up the timings */ hactive = info->var.xres; hblankstart = hactive; hsyncstart = hblankstart + info->var.right_margin; hsyncend = hsyncstart + info->var.hsync_len; hblankend = hsyncend + info->var.left_margin; htotal = hblankend; vactive = info->var.yres; vblankstart = vactive; vsyncstart = vblankstart + info->var.lower_margin; vsyncend = vsyncstart + info->var.vsync_len; vblankend = vsyncend + info->var.upper_margin; vtotal = vblankend; write_dc(par, DC_H_ACTIVE_TIMING, (hactive - 1) | ((htotal - 1) << 16)); write_dc(par, DC_H_BLANK_TIMING, (hblankstart - 1) | ((hblankend - 1) << 16)); write_dc(par, DC_H_SYNC_TIMING, (hsyncstart - 1) | ((hsyncend - 1) << 16)); write_dc(par, DC_V_ACTIVE_TIMING, (vactive - 1) | ((vtotal - 1) << 16)); write_dc(par, DC_V_BLANK_TIMING, (vblankstart - 1) | ((vblankend - 1) << 16)); write_dc(par, DC_V_SYNC_TIMING, (vsyncstart - 1) | ((vsyncend - 1) << 16)); write_dc(par, DC_FB_ACTIVE, (info->var.xres - 1) << 16 | (info->var.yres - 1)); /* And re-enable the graphics output */ lx_graphics_enable(info); /* Write the two main configuration registers */ write_dc(par, DC_DISPLAY_CFG, dcfg); write_dc(par, DC_ARB_CFG, 0); write_dc(par, DC_GENERAL_CFG, gcfg); /* Lock the DC registers */ write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); } void lx_set_palette_reg(struct fb_info *info, unsigned regno, unsigned red, unsigned green, unsigned blue) { struct lxfb_par *par = info->par; int val; /* Hardware palette is in RGB 8-8-8 format. */ val = (red << 8) & 0xff0000; val |= (green) & 0x00ff00; val |= (blue >> 8) & 0x0000ff; write_dc(par, DC_PAL_ADDRESS, regno); write_dc(par, DC_PAL_DATA, val); } int lx_blank_display(struct fb_info *info, int blank_mode) { struct lxfb_par *par = info->par; u32 dcfg, misc, fp_pm; int blank, hsync, vsync; /* CRT power saving modes. */ switch (blank_mode) { case FB_BLANK_UNBLANK: blank = 0; hsync = 1; vsync = 1; break; case FB_BLANK_NORMAL: blank = 1; hsync = 1; vsync = 1; break; case FB_BLANK_VSYNC_SUSPEND: blank = 1; hsync = 1; vsync = 0; break; case FB_BLANK_HSYNC_SUSPEND: blank = 1; hsync = 0; vsync = 1; break; case FB_BLANK_POWERDOWN: blank = 1; hsync = 0; vsync = 0; break; default: return -EINVAL; } dcfg = read_vp(par, VP_DCFG); dcfg &= ~(VP_DCFG_DAC_BL_EN | VP_DCFG_HSYNC_EN | VP_DCFG_VSYNC_EN | VP_DCFG_CRT_EN); if (!blank) dcfg |= VP_DCFG_DAC_BL_EN | VP_DCFG_CRT_EN; if (hsync) dcfg |= VP_DCFG_HSYNC_EN; if (vsync) dcfg |= VP_DCFG_VSYNC_EN; write_vp(par, VP_DCFG, dcfg); misc = read_vp(par, VP_MISC); if (vsync && hsync) misc &= ~VP_MISC_DACPWRDN; else misc |= VP_MISC_DACPWRDN; write_vp(par, VP_MISC, misc); /* Power on/off flat panel */ if (par->output & OUTPUT_PANEL) { fp_pm = read_fp(par, FP_PM); if (blank_mode == FB_BLANK_POWERDOWN) fp_pm &= ~FP_PM_P; else fp_pm |= FP_PM_P; write_fp(par, FP_PM, fp_pm); } return 0; } #ifdef CONFIG_PM static void lx_save_regs(struct lxfb_par *par) { uint32_t filt; int i; /* wait for the BLT engine to stop being busy */ do { i = read_gp(par, GP_BLT_STATUS); } while ((i & GP_BLT_STATUS_PB) || !(i & GP_BLT_STATUS_CE)); /* save MSRs */ rdmsrl(MSR_LX_MSR_PADSEL, par->msr.padsel); rdmsrl(MSR_GLCP_DOTPLL, par->msr.dotpll); rdmsrl(MSR_LX_GLD_MSR_CONFIG, par->msr.dfglcfg); rdmsrl(MSR_LX_SPARE_MSR, par->msr.dcspare); write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); /* save registers */ memcpy(par->gp, par->gp_regs, sizeof(par->gp)); memcpy(par->dc, par->dc_regs, sizeof(par->dc)); memcpy(par->vp, par->vp_regs, sizeof(par->vp)); memcpy(par->fp, par->vp_regs + VP_FP_START, sizeof(par->fp)); /* save the palette */ write_dc(par, DC_PAL_ADDRESS, 0); for (i = 0; i < ARRAY_SIZE(par->pal); i++) par->pal[i] = read_dc(par, DC_PAL_DATA); /* save the horizontal filter coefficients */ filt = par->dc[DC_IRQ_FILT_CTL] | DC_IRQ_FILT_CTL_H_FILT_SEL; for (i = 0; i < ARRAY_SIZE(par->hcoeff); i += 2) { write_dc(par, DC_IRQ_FILT_CTL, (filt & 0xffffff00) | i); par->hcoeff[i] = read_dc(par, DC_FILT_COEFF1); par->hcoeff[i + 1] = read_dc(par, DC_FILT_COEFF2); } /* save the vertical filter coefficients */ filt &= ~DC_IRQ_FILT_CTL_H_FILT_SEL; for (i = 0; i < ARRAY_SIZE(par->vcoeff); i++) { write_dc(par, DC_IRQ_FILT_CTL, (filt & 0xffffff00) | i); par->vcoeff[i] = read_dc(par, DC_FILT_COEFF1); } /* save video coeff ram */ memcpy(par->vp_coeff, par->vp_regs + VP_VCR, sizeof(par->vp_coeff)); } static void lx_restore_gfx_proc(struct lxfb_par *par) { int i; /* a bunch of registers require GP_RASTER_MODE to be set first */ write_gp(par, GP_RASTER_MODE, par->gp[GP_RASTER_MODE]); for (i = 0; i < ARRAY_SIZE(par->gp); i++) { switch (i) { case GP_RASTER_MODE: case GP_VECTOR_MODE: case GP_BLT_MODE: case GP_BLT_STATUS: case GP_HST_SRC: /* FIXME: restore LUT data */ case GP_LUT_INDEX: case GP_LUT_DATA: /* don't restore these registers */ break; default: write_gp(par, i, par->gp[i]); } } } static void lx_restore_display_ctlr(struct lxfb_par *par) { uint32_t filt; int i; wrmsrl(MSR_LX_SPARE_MSR, par->msr.dcspare); for (i = 0; i < ARRAY_SIZE(par->dc); i++) { switch (i) { case DC_UNLOCK: /* unlock the DC; runs first */ write_dc(par, DC_UNLOCK, DC_UNLOCK_UNLOCK); break; case DC_GENERAL_CFG: case DC_DISPLAY_CFG: /* disable all while restoring */ write_dc(par, i, 0); break; case DC_DV_CTL: /* set all ram to dirty */ write_dc(par, i, par->dc[i] | DC_DV_CTL_CLEAR_DV_RAM); case DC_RSVD_1: case DC_RSVD_2: case DC_RSVD_3: case DC_LINE_CNT: case DC_PAL_ADDRESS: case DC_PAL_DATA: case DC_DFIFO_DIAG: case DC_CFIFO_DIAG: case DC_FILT_COEFF1: case DC_FILT_COEFF2: case DC_RSVD_4: case DC_RSVD_5: /* don't restore these registers */ break; default: write_dc(par, i, par->dc[i]); } } /* restore the palette */ write_dc(par, DC_PAL_ADDRESS, 0); for (i = 0; i < ARRAY_SIZE(par->pal); i++) write_dc(par, DC_PAL_DATA, par->pal[i]); /* restore the horizontal filter coefficients */ filt = par->dc[DC_IRQ_FILT_CTL] | DC_IRQ_FILT_CTL_H_FILT_SEL; for (i = 0; i < ARRAY_SIZE(par->hcoeff); i += 2) { write_dc(par, DC_IRQ_FILT_CTL, (filt & 0xffffff00) | i); write_dc(par, DC_FILT_COEFF1, par->hcoeff[i]); write_dc(par, DC_FILT_COEFF2, par->hcoeff[i + 1]); } /* restore the vertical filter coefficients */ filt &= ~DC_IRQ_FILT_CTL_H_FILT_SEL; for (i = 0; i < ARRAY_SIZE(par->vcoeff); i++) { write_dc(par, DC_IRQ_FILT_CTL, (filt & 0xffffff00) | i); write_dc(par, DC_FILT_COEFF1, par->vcoeff[i]); } } static void lx_restore_video_proc(struct lxfb_par *par) { int i; wrmsrl(MSR_LX_GLD_MSR_CONFIG, par->msr.dfglcfg); wrmsrl(MSR_LX_MSR_PADSEL, par->msr.padsel); for (i = 0; i < ARRAY_SIZE(par->vp); i++) { switch (i) { case VP_VCFG: case VP_DCFG: case VP_PAR: case VP_PDR: case VP_CCS: case VP_RSVD_0: /* case VP_VDC: */ /* why should this not be restored? */ case VP_RSVD_1: case VP_CRC32: /* don't restore these registers */ break; default: write_vp(par, i, par->vp[i]); } } /* restore video coeff ram */ memcpy(par->vp_regs + VP_VCR, par->vp_coeff, sizeof(par->vp_coeff)); } static void lx_restore_regs(struct lxfb_par *par) { int i; lx_set_dotpll((u32) (par->msr.dotpll >> 32)); lx_restore_gfx_proc(par); lx_restore_display_ctlr(par); lx_restore_video_proc(par); /* Flat Panel */ for (i = 0; i < ARRAY_SIZE(par->fp); i++) { switch (i) { case FP_PM: case FP_RSVD_0: case FP_RSVD_1: case FP_RSVD_2: case FP_RSVD_3: case FP_RSVD_4: /* don't restore these registers */ break; default: write_fp(par, i, par->fp[i]); } } /* control the panel */ if (par->fp[FP_PM] & FP_PM_P) { /* power on the panel if not already power{ed,ing} on */ if (!(read_fp(par, FP_PM) & (FP_PM_PANEL_ON|FP_PM_PANEL_PWR_UP))) write_fp(par, FP_PM, par->fp[FP_PM]); } else { /* power down the panel if not already power{ed,ing} down */ if (!(read_fp(par, FP_PM) & (FP_PM_PANEL_OFF|FP_PM_PANEL_PWR_DOWN))) write_fp(par, FP_PM, par->fp[FP_PM]); } /* turn everything on */ write_vp(par, VP_VCFG, par->vp[VP_VCFG]); write_vp(par, VP_DCFG, par->vp[VP_DCFG]); write_dc(par, DC_DISPLAY_CFG, par->dc[DC_DISPLAY_CFG]); /* do this last; it will enable the FIFO load */ write_dc(par, DC_GENERAL_CFG, par->dc[DC_GENERAL_CFG]); /* lock the door behind us */ write_dc(par, DC_UNLOCK, DC_UNLOCK_LOCK); } int lx_powerdown(struct fb_info *info) { struct lxfb_par *par = info->par; if (par->powered_down) return 0; lx_save_regs(par); lx_graphics_disable(info); par->powered_down = 1; return 0; } int lx_powerup(struct fb_info *info) { struct lxfb_par *par = info->par; if (!par->powered_down) return 0; lx_restore_regs(par); par->powered_down = 0; return 0; } #endif