diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 17:31:38 +0400 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 09:10:19 +0400 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/geode/lxfb_ops.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-f7018c21350204c4cf628462f229d44d03545254.tar.xz |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/geode/lxfb_ops.c')
-rw-r--r-- | drivers/video/geode/lxfb_ops.c | 845 |
1 files changed, 0 insertions, 845 deletions
diff --git a/drivers/video/geode/lxfb_ops.c b/drivers/video/geode/lxfb_ops.c deleted file mode 100644 index 79e9abc72b83..000000000000 --- a/drivers/video/geode/lxfb_ops.c +++ /dev/null @@ -1,845 +0,0 @@ -/* 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 <linux/cs5535.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); - temp = FP_PT2_SCRC; - - if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT)) - temp |= FP_PT2_HSP; - - if (!(info->var.sync & FB_SYNC_VERT_HIGH_ACT)) - temp |= FP_PT2_VSP; - - write_fp(par, FP_PT2, temp); - 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 (!cs5535_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 display controller palette */ - write_dc(par, DC_PAL_ADDRESS, 0); - for (i = 0; i < ARRAY_SIZE(par->dc_pal); i++) - par->dc_pal[i] = read_dc(par, DC_PAL_DATA); - - /* save the video processor palette */ - write_vp(par, VP_PAR, 0); - for (i = 0; i < ARRAY_SIZE(par->vp_pal); i++) - par->vp_pal[i] = read_vp(par, VP_PDR); - - /* 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->dc_pal); i++) - write_dc(par, DC_PAL_DATA, par->dc_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 processor palette */ - write_vp(par, VP_PAR, 0); - for (i = 0; i < ARRAY_SIZE(par->vp_pal); i++) - write_vp(par, VP_PDR, par->vp_pal[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 |