diff options
Diffstat (limited to 'target/linux/olpc/files-2.6.23/drivers/video')
4 files changed, 0 insertions, 1413 deletions
diff --git a/target/linux/olpc/files-2.6.23/drivers/video/geode/geode_regs.h b/target/linux/olpc/files-2.6.23/drivers/video/geode/geode_regs.h deleted file mode 100644 index 9e75505a88..0000000000 --- a/target/linux/olpc/files-2.6.23/drivers/video/geode/geode_regs.h +++ /dev/null @@ -1,242 +0,0 @@ -/* This header file defines the registers and suspend/resume - structures for the Geode GX and LX. The lxfb driver defines - _GEODELX_ before including this file, which will unlock the - extra registers that are only valid for LX. -*/ - -#ifndef _GEODE_REGS_H_ -#define _GEODE_REGS_H_ - -/* MSRs */ - -#define GX_VP_MSR_PAD_SELECT 0xC0002011 -#define LX_VP_MSR_PAD_SELECT 0x48000011 - -#define GEODE_MSR_GLCP_DOTPLL 0x4c000015 - -#define GLCP_DOTPLL_RESET (1 << 0) -#define GLCP_DOTPLL_BYPASS (1 << 15) -#define GLCP_DOTPLL_HALFPIX (1 << 24) -#define GLCP_DOTPLL_LOCK (1 << 25) - -/* Registers */ -#define VP_FP_START 0x400 - - -#ifdef _GEODELX_ - -#define GP_REG_SIZE 0x7C -#define DC_REG_SIZE 0xF0 -#define VP_REG_SIZE 0x158 -#define FP_REG_SIZE 0x70 - -#else - -#define GP_REG_SIZE 0x50 -#define DC_REG_SIZE 0x90 -#define VP_REG_SIZE 0x138 -#define FP_REG_SIZE 0x70 - -#endif - -#define DC_PAL_SIZE 0x105 - -struct geoderegs { - - struct { - u64 padsel; - u64 dotpll; - -#ifdef _GEODELX_ - u64 dfglcfg; - u64 dcspare; -#else - u64 rstpll; -#endif - } msr; - - union { - unsigned char b[GP_REG_SIZE]; - struct { - u32 dst_offset; /* 0x00 */ - u32 src_offset; /* 0x04 */ - u32 stride; /* 0x08 */ - u32 wid_height; /* 0x0C */ - u32 src_color_fg; /* 0x10 */ - u32 src_color_bg; /* 0x14 */ - u32 pat_color_0; /* 0x18 */ - u32 pat_color_1; /* 0x1C */ - u32 pat_color_2; /* 0x20 */ - u32 pat_color_3; /* 0x24 */ - u32 pat_color_4; /* 0x28 */ - u32 pat_color_5; /* 0x2C */ - u32 pat_data_0; /* 0x30 */ - u32 pat_data_1; /* 0x34 */ - u32 raster_mode; /* 0x38 */ - u32 vector_mode; /* 0x3C */ - u32 blt_mode; /* 0x40 */ - u32 blit_status; /* 0x4C */ - u32 hst_src; /* 0x48 */ - u32 base_offset; /* 0x4C */ - -#ifdef _GEODELX_ - u32 cmd_top; /* 0x50 */ - u32 cmd_bot; /* 0x54 */ - u32 cmd_read; /* 0x58 */ - u32 cmd_write; /* 0x5C */ - u32 ch3_offset; /* 0x60 */ - u32 ch3_mode_str; /* 0x64 */ - u32 ch3_width; /* 0x68 */ - u32 ch3_hsrc; /* 0x6C */ - u32 lut_index; /* 0x70 */ - u32 lut_data; /* 0x74 */ - u32 int_cntrl; /* 0x78 */ -#endif - } r; - } gp; - - union { - unsigned char b[DC_REG_SIZE]; - - struct { - u32 unlock; /* 0x00 */ - u32 gcfg; /* 0x04 */ - u32 dcfg; /* 0x08 */ - u32 arb; /* 0x0C */ - u32 fb_st_offset; /* 0x10 */ - u32 cb_st_offset; /* 0x14 */ - u32 curs_st_offset; /* 0x18 */ - u32 icon_st_offset; /* 0x1C */ - u32 vid_y_st_offset; /* 0x20 */ - u32 vid_u_st_offset; /* 0x24 */ - u32 vid_v_st_offset; /* 0x28 */ - u32 dctop; /* 0x2c */ - u32 line_size; /* 0x30 */ - u32 gfx_pitch; /* 0x34 */ - u32 vid_yuv_pitch; /* 0x38 */ - u32 rsvd2; /* 0x3C */ - u32 h_active_timing; /* 0x40 */ - u32 h_blank_timing; /* 0x44 */ - u32 h_sync_timing; /* 0x48 */ - u32 rsvd3; /* 0x4C */ - u32 v_active_timing; /* 0x50 */ - u32 v_blank_timing; /* 0x54 */ - u32 v_sync_timing; /* 0x58 */ - u32 fbactive; /* 0x5C */ - u32 dc_cursor_x; /* 0x60 */ - u32 dc_cursor_y; /* 0x64 */ - u32 dc_icon_x; /* 0x68 */ - u32 dc_line_cnt; /* 0x6C */ - u32 rsvd5; /* 0x70 - palette address */ - u32 rsvd6; /* 0x74 - palette data */ - u32 dfifo_diag; /* 0x78 */ - u32 cfifo_diag; /* 0x7C */ - u32 dc_vid_ds_delta; /* 0x80 */ - u32 gliu0_mem_offset; /* 0x84 */ - u32 dv_ctl; /* 0x88 - added by LX */ - u32 dv_acc; /* 0x8C */ - -#ifdef _GEODELX_ - u32 gfx_scale; - u32 irq_filt_ctl; - u32 filt_coeff1; - u32 filt_coeff2; - u32 vbi_event_ctl; - u32 vbi_odd_ctl; - u32 vbi_hor; - u32 vbi_ln_odd; - u32 vbi_ln_event; - u32 vbi_pitch; - u32 clr_key; - u32 clr_key_mask; - u32 clr_key_x; - u32 clr_key_y; - u32 irq; - u32 rsvd8; - u32 genlk_ctrl; - u32 vid_even_y_st_offset; /* 0xD8 */ - u32 vid_even_u_st_offset; /* 0xDC */ - u32 vid_even_v_st_offset; /* 0xE0 */ - u32 v_active_even_timing; /* 0xE4 */ - u32 v_blank_even_timing; /* 0xE8 */ - u32 v_sync_even_timing; /* 0xEC */ -#endif - } r; - } dc; - - union { - unsigned char b[VP_REG_SIZE]; - - struct { - u64 vcfg; /* 0x00 */ - u64 dcfg; /* 0x08 */ - u64 vx; /* 0x10 */ - u64 vy; /* 0x18 */ - u64 vs; /* 0x20 */ - u64 vck; /* 0x28 */ - u64 vcm; /* 0x30 */ - u64 rsvd1; /* 0x38 - Gamma address*/ - u64 rsvd2; /* 0x40 - Gamma data*/ - u64 rsvd3; /* 0x48 */ - u64 misc; /* 0x50 */ - u64 ccs; /* 0x58 */ - u64 rsvd4[3]; /* 0x60-0x70 */ - u64 vdc; /* 0x78 */ - u64 vco; /* 0x80 */ - u64 crc; /* 0x88 */ - u64 crc32; /* 0x90 */ - u64 vde; /* 0x98 */ - u64 cck; /* 0xA0 */ - u64 ccm; /* 0xA8 */ - u64 cc1; /* 0xB0 */ - u64 cc2; /* 0xB8 */ - u64 a1x; /* 0xC0 */ - u64 a1y; /* 0xC8 */ - u64 a1c; /* 0xD0 */ - u64 a1t; /* 0xD8 */ - u64 a2x; /* 0xE0 */ - u64 a2y; /* 0xE8 */ - u64 a2c; /* 0xF0 */ - u64 a2t; /* 0xF8 */ - u64 a3x; /* 0x100 */ - u64 a3y; /* 0x108 */ - u64 a3c; /* 0x110 */ - u64 a3t; /* 0x118 */ - u64 vrr; /* 0x120 */ - u64 awt; /* 0x128 */ - u64 vtm; /* 0x130 */ -#ifdef _GEODELX_ - u64 vye; /* 0x138 */ - u64 a1ye; /* 0x140 */ - u32 a2ye; /* 0x148 */ - u32 a3ye; /* 0x150 */ -#endif - } r; - } vp; - - union { - unsigned char b[FP_REG_SIZE]; - - struct { - u64 pt1; /* 0x400 */ - u64 pt2; /* 0x408 */ - u64 pm; /* 0x410 */ - u64 dfc; /* 0x418 */ - u64 blfsr; /* 0x420 */ - u64 rlfsr; /* 0x428 */ - u64 fmi; /* 0x430 */ - u64 fmd; /* 0x438 */ - u64 rsvd; /* 0x440 */ - u64 dca; /* 0x448 */ - u64 dmd; /* 0x450 */ - u64 crc; /* 0x458 */ - u64 fbb; /* 0x460 */ - u64 crc32; /* 0x468 */ - } r; - } fp; - - u32 pal[DC_PAL_SIZE]; - u32 gamma[256]; -}; - -#endif diff --git a/target/linux/olpc/files-2.6.23/drivers/video/geode/suspend_gx.c b/target/linux/olpc/files-2.6.23/drivers/video/geode/suspend_gx.c deleted file mode 100644 index 43c25bea5a..0000000000 --- a/target/linux/olpc/files-2.6.23/drivers/video/geode/suspend_gx.c +++ /dev/null @@ -1,272 +0,0 @@ -#include <linux/fb.h> -#include <asm/io.h> -#include <asm/msr.h> - -#include "geodefb.h" -#include "video_gx.h" - -void gx_set_dotpll(struct fb_info *info, struct geoderegs *regs) -{ - int timeout = 1000; - - u64 rstpll, dotpll; - - rdmsrl(MSR_GLCP_SYS_RSTPLL, rstpll); - rdmsrl(MSR_GLCP_DOTPLL, dotpll); - - dotpll &= 0x00000000ffffffffull; - dotpll |= regs->msr.dotpll & 0xffffffff00000000ull; - - dotpll |= MSR_GLCP_DOTPLL_DOTRESET; - dotpll &= ~MSR_GLCP_DOTPLL_BYPASS; - - wrmsrl(MSR_GLCP_DOTPLL, dotpll); - - rstpll |= (regs->msr.rstpll & - ( MSR_GLCP_SYS_RSTPLL_DOTPREDIV2 | - MSR_GLCP_SYS_RSTPLL_DOTPREMULT2 | - MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3)); - - wrmsrl(MSR_GLCP_SYS_RSTPLL, rstpll); - dotpll &= ~(MSR_GLCP_DOTPLL_DOTRESET); - wrmsrl(MSR_GLCP_DOTPLL, dotpll); - - do { - rdmsrl(MSR_GLCP_DOTPLL, dotpll); - } while (timeout-- && !(dotpll & MSR_GLCP_DOTPLL_LOCK)); -} - -/* FIXME: Make sure nothing is read to clear */ - -void gx_save_regs(struct fb_info *info, struct geoderegs *regs) -{ - struct geodefb_par *par = info->par; - int i; - - /* Wait for the BLT engine to stop being busy */ - while(readl(par->gp_regs + 0x44) & 0x05); - - rdmsrl(GX_VP_MSR_PAD_SELECT, regs->msr.padsel); - rdmsrl(MSR_GLCP_DOTPLL, regs->msr.dotpll); - rdmsrl(MSR_GLCP_SYS_RSTPLL, regs->msr.rstpll); - - writel(0x4758, par->dc_regs + 0x00); - - memcpy(regs->gp.b, par->gp_regs, GP_REG_SIZE); - memcpy(regs->dc.b, par->dc_regs, DC_REG_SIZE); - memcpy(regs->vp.b, par->vid_regs, VP_REG_SIZE); - memcpy(regs->fp.b, par->vid_regs + 0x400, FP_REG_SIZE); - - /* Save the palettes */ - writel(0, par->dc_regs + 0x70); - - for(i = 0; i < DC_PAL_SIZE; i++) - regs->pal[i] = readl(par->dc_regs + 0x74); - - writel(0, par->vid_regs + 0x38); - - for(i = 0; i < 0xFF; i++) - regs->gamma[i] = readl(par->vid_regs + 0x40); -} - -void gx_restore_regs(struct fb_info *info, struct geoderegs *regs) -{ - struct geodefb_par *par = info->par; - u32 val, i; - - /* DOTPLL */ - gx_set_dotpll(info, regs); - - /* GP */ - - writel(regs->gp.r.dst_offset, par->gp_regs + 0x00); - writel(regs->gp.r.src_offset, par->gp_regs + 0x04); - writel(regs->gp.r.stride, par->gp_regs + 0x08); - writel(regs->gp.r.wid_height, par->gp_regs + 0x0C); - writel(regs->gp.r.src_color_fg, par->gp_regs + 0x10); - writel(regs->gp.r.src_color_bg, par->gp_regs + 0x14); - writel(regs->gp.r.pat_color_0, par->gp_regs + 0x18); - writel(regs->gp.r.pat_color_1, par->gp_regs + 0x1C); - writel(regs->gp.r.pat_color_2, par->gp_regs + 0x20); - writel(regs->gp.r.pat_color_3, par->gp_regs + 0x24); - writel(regs->gp.r.pat_color_4, par->gp_regs + 0x28); - writel(regs->gp.r.pat_color_5, par->gp_regs + 0x2C); - writel(regs->gp.r.pat_data_0, par->gp_regs + 0x30); - writel(regs->gp.r.pat_data_1, par->gp_regs + 0x34); - - /* Don't write the raster / vector / blt mode regs */ - /* status register is read only */ - - writel(regs->gp.r.hst_src, par->gp_regs + 0x48); - writel(regs->gp.r.base_offset, par->gp_regs + 0x4c); - - /* DC */ - - /* Write the unlock value */ - writel(0x4758, par->dc_regs + 0x00); - - writel(0, par->dc_regs + 0x70); - - for(i = 0; i < DC_PAL_SIZE; i++) - writel(regs->pal[i], par->dc_regs + 0x74); - - /* Write the gcfg register without the enables */ - writel(regs->dc.r.gcfg & ~0x0F, par->dc_regs + 0x04); - - /* Write the vcfg register without the enables */ - writel(regs->dc.r.dcfg & ~0x19, par->dc_regs + 0x08); - - /* Write the rest of the active registers */ - - writel(regs->dc.r.fb_st_offset, par->dc_regs + 0x10); - writel(regs->dc.r.cb_st_offset, par->dc_regs + 0x14); - writel(regs->dc.r.curs_st_offset, par->dc_regs + 0x18); - writel(regs->dc.r.icon_st_offset, par->dc_regs + 0x1C); - writel(regs->dc.r.vid_y_st_offset, par->dc_regs + 0x20); - writel(regs->dc.r.vid_u_st_offset, par->dc_regs + 0x24); - writel(regs->dc.r.vid_v_st_offset, par->dc_regs + 0x28); - writel(regs->dc.r.line_size, par->dc_regs + 0x30); - writel(regs->dc.r.gfx_pitch, par->dc_regs + 0x34); - writel(regs->dc.r.vid_yuv_pitch, par->dc_regs + 0x38); - writel(regs->dc.r.h_active_timing, par->dc_regs + 0x40); - writel(regs->dc.r.h_blank_timing, par->dc_regs + 0x44); - writel(regs->dc.r.h_sync_timing, par->dc_regs + 0x48); - writel(regs->dc.r.v_active_timing, par->dc_regs + 0x50); - writel(regs->dc.r.v_blank_timing, par->dc_regs + 0x54); - writel(regs->dc.r.v_sync_timing, par->dc_regs + 0x58); - writel(regs->dc.r.dc_cursor_x, par->dc_regs + 0x60); - writel(regs->dc.r.dc_cursor_y, par->dc_regs + 0x64); - writel(regs->dc.r.dc_icon_x, par->dc_regs + 0x68); - - /* Don't write the line_cnt or diag registers */ - - writel(regs->dc.r.dc_vid_ds_delta, par->dc_regs + 0x80); - writel(regs->dc.r.gliu0_mem_offset, par->dc_regs + 0x84); - writel(regs->dc.r.dv_acc, par->dc_regs + 0x8C); - - /* VP */ - - /* MSR */ - wrmsrl(GX_VP_MSR_PAD_SELECT, regs->msr.padsel); - - writel(0, par->vid_regs + 0x38); - - for(i = 0; i < 0xFF; i++) - writel((u32) regs->gamma[i], par->vid_regs + 0x40); - - /* Don't enable video yet */ - writel((u32) regs->vp.r.vcfg & ~0x01, par->vid_regs + 0x00); - - /* Don't enable the CRT yet */ - writel((u32) regs->vp.r.dcfg & ~0x0F, par->vid_regs + 0x08); - - /* Write the rest of the VP registers */ - - writel((u32) regs->vp.r.vx, par->vid_regs + 0x10); - writel((u32) regs->vp.r.vy, par->vid_regs + 0x18); - writel((u32) regs->vp.r.vs, par->vid_regs + 0x20); - writel((u32) regs->vp.r.vck, par->vid_regs + 0x28); - writel((u32) regs->vp.r.vcm, par->vid_regs + 0x30); - writel((u32) regs->vp.r.misc, par->vid_regs + 0x50); - writel((u32) regs->vp.r.ccs, par->vid_regs + 0x58); - writel((u32) regs->vp.r.vdc, par->vid_regs + 0x78); - writel((u32) regs->vp.r.vco, par->vid_regs + 0x80); - writel((u32) regs->vp.r.crc, par->vid_regs + 0x88); - writel((u32) regs->vp.r.vde, par->vid_regs + 0x98); - writel((u32) regs->vp.r.cck, par->vid_regs + 0xA0); - writel((u32) regs->vp.r.ccm, par->vid_regs + 0xA8); - writel((u32) regs->vp.r.cc1, par->vid_regs + 0xB0); - writel((u32) regs->vp.r.cc2, par->vid_regs + 0xB8); - writel((u32) regs->vp.r.a1x, par->vid_regs + 0xC0); - writel((u32) regs->vp.r.a1y, par->vid_regs + 0xC8); - writel((u32) regs->vp.r.a1c, par->vid_regs + 0xD0); - writel((u32) regs->vp.r.a1t, par->vid_regs + 0xD8); - writel((u32) regs->vp.r.a2x, par->vid_regs + 0xE0); - writel((u32) regs->vp.r.a2y, par->vid_regs + 0xE8); - writel((u32) regs->vp.r.a2c, par->vid_regs + 0xF0); - writel((u32) regs->vp.r.a2t, par->vid_regs + 0xF8); - writel((u32) regs->vp.r.a3x, par->vid_regs + 0x100); - writel((u32) regs->vp.r.a3y, par->vid_regs + 0x108); - writel((u32) regs->vp.r.a3c, par->vid_regs + 0x110); - writel((u32) regs->vp.r.a3t, par->vid_regs + 0x118); - writel((u32) regs->vp.r.vrr, par->vid_regs + 0x120); - - - /* FP registers */ - - writel((u32) regs->fp.r.pt1, par->vid_regs + 0x400); - writel((u32) regs->fp.r.pt2, par->vid_regs + 0x408); - - writel((u32) regs->fp.r.dfc, par->vid_regs + 0x418); - writel(regs->fp.r.blfsr, par->vid_regs + 0x420); - writel(regs->fp.r.rlfsr, par->vid_regs + 0x428); - writel(regs->fp.r.fmi, par->vid_regs + 0x430); - writel(regs->fp.r.fmd, par->vid_regs + 0x438); - writel(regs->fp.r.dca, par->vid_regs + 0x448); - writel(regs->fp.r.dmd, par->vid_regs + 0x450); - writel(regs->fp.r.crc, par->vid_regs + 0x458); - writel(regs->fp.r.fbb, par->vid_regs + 0x460); - - /* Final enables */ - - val = readl(par->vid_regs + 0x410); - - /* Control the panel */ - if (regs->fp.r.pm & (1 << 24)) { - - if (!(val & 0x09)) - writel(regs->fp.r.pm, par->vid_regs + 0x410); - } - else { - if (!(val & 0x05)) - writel(regs->fp.r.pm, par->vid_regs + 0x410); - } - - /* Turn everything on */ - - writel(regs->dc.r.gcfg, par->dc_regs + 0x04); - writel((u32) regs->vp.r.vcfg, par->vid_regs + 0x00); - writel((u32) regs->vp.r.dcfg, par->vid_regs + 0x08); - writel(regs->dc.r.dcfg, par->dc_regs + 0x08); -} - - -#ifdef DEBUG - -void dump_regs(struct fb_info *info, int mode) { - - struct geodefb_par *par = info->par; - u32 val; - int i; - - if (mode == 0) { - for(i = 0; i < GP_REG_SIZE; i += 4) { - val = readl(par->gp_regs + i); - } - } - - if (mode == 1) { - writel(0x4758, par->dc_regs + 0x00); - - for(i = 0; i < DC_REG_SIZE; i += 4) { - val = readl(par->dc_regs + i); - printk("DC%x: %x\n", i, val); - } - } - - if (mode == 2) { - for(i = 0; i < VP_REG_SIZE; i += 8) { - val = readl(par->vid_regs + i); - printk("VP%x: %x\n", i, val); - } - } - - if (mode == 3) { - for(i = 0; i < FP_REG_SIZE; i += 8) { - val = readl(par->vid_regs + 0x400 + i); - printk("FP%x: %x\n", i, val); - } - } -} - -#endif diff --git a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c b/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c deleted file mode 100644 index d4ef138676..0000000000 --- a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c +++ /dev/null @@ -1,824 +0,0 @@ -/* - * Mainly by David Woodhouse, somewhat modified by Jordan Crouse - * - * Copyright © 2006-2007 Red Hat, Inc. - * Copyright © 2006-2007 Advanced Micro Devices, Inc. - * - * This program is free software. You can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - */ - - -#include <linux/kernel.h> -#include <linux/fb.h> -#include <linux/i2c.h> -#include <linux/platform_device.h> -#include <linux/i2c-id.h> -#include <linux/pci.h> -#include <linux/vt_kern.h> -#include <linux/pci_ids.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/backlight.h> -#include <linux/device.h> -#include <asm/uaccess.h> -#include <linux/ctype.h> -#include <linux/reboot.h> -#include <asm/tsc.h> -#include <asm/olpc.h> - -#include "olpc_dcon.h" - -/* Module definitions */ - -static int resumeline = 898; -module_param(resumeline, int, 0444); - -static int noinit; -module_param(noinit, int, 0444); - -/* Default off since it doesn't work on DCON ASIC in B-test OLPC board */ -static int useaa = 1; -module_param(useaa, int, 0444); - -/* I2C structures */ - -static struct i2c_driver dcon_driver; -static struct i2c_client *dcon_client; - -/* Platform devices */ -static struct platform_device *dcon_device; - -/* Backlight device */ -static struct backlight_device *dcon_bl_dev; - -/* Base address of the GPIO registers */ -static unsigned long gpio_base; - -static struct fb_info *fbinfo; - -/* Current source, initialized at probe time */ -static int dcon_source; - -/* Desired source */ -static int dcon_pending; - -/* Current output type */ -static int dcon_output = DCON_OUTPUT_COLOR; - -/* Current sleep status (not yet implemented) */ -static int dcon_sleep_val = DCON_ACTIVE; - -/* Shadow register for the DCON_REG_MODE register */ -static unsigned short dcon_disp_mode; - -/* Variables used during switches */ -static int dcon_switched; - -static DECLARE_WAIT_QUEUE_HEAD(dcon_wait_queue); - -static unsigned short normal_i2c[] = { 0x0D, I2C_CLIENT_END }; -I2C_CLIENT_INSMOD; - -#define dcon_write(reg,val) i2c_smbus_write_word_data(dcon_client,reg,val) -#define dcon_read(reg) i2c_smbus_read_word_data(dcon_client,reg) - -/* The current backlight value - this saves us some smbus traffic */ -static int bl_val = -1; - -/* ===== API functions - these are called by a variety of users ==== */ - -/* Backlight notes - turning off the backlight enable bit in the DCON - * doesn't save us any power over just pushing the BL to zero, so we - * don't use that bit in this code. - */ - -static int dcon_get_backlight(void) -{ - if (dcon_client == NULL) - return 0; - - if (bl_val == -1) - bl_val = dcon_read(DCON_REG_BRIGHT) & 0x0F; - - return bl_val; -} - -static void dcon_set_backlight(int level) -{ - if (dcon_client == NULL) - return; - - if (bl_val == (level & 0x0F)) - return; - - bl_val = level & 0x0F; - dcon_write(DCON_REG_BRIGHT, bl_val); - - /* Purposely turn off the backlight when we go to level 0 */ - - if (bl_val == 0) { - dcon_disp_mode &= ~MODE_BL_ENABLE; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - } - else if (!(dcon_disp_mode & MODE_BL_ENABLE)) { - dcon_disp_mode |= MODE_BL_ENABLE; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - } -} - -/* Set the output type to either color or mono */ - -static int dcon_set_output(int arg) -{ - if (dcon_output == arg) - return 0; - - dcon_output = arg; - - if (arg == DCON_OUTPUT_MONO) { - dcon_disp_mode &= ~(MODE_CSWIZZLE | MODE_COL_AA); - dcon_disp_mode |= MODE_MONO_LUMA; - } - else { - dcon_disp_mode &= ~(MODE_MONO_LUMA); - dcon_disp_mode |= MODE_CSWIZZLE; - if (useaa) - dcon_disp_mode |= MODE_COL_AA; - } - - dcon_write(DCON_REG_MODE, dcon_disp_mode); - return 0; -} - -/* For now, this will be really stupid - we need to address how - * DCONLOAD works in a sleep and account for it accordingly - */ - -static void dcon_sleep(int state) -{ - /* Turn off the backlight and put the DCON to sleep */ - - if (state == dcon_sleep_val) - return; - - if (state == DCON_SLEEP) { - dcon_disp_mode &= ~MODE_BL_ENABLE; - dcon_disp_mode |= MODE_SLEEP; - } - else { - /* Only re-enable the backlight if the backlight value is set */ - - if (bl_val != 0) - dcon_disp_mode |= MODE_BL_ENABLE; - - dcon_disp_mode &= ~MODE_SLEEP; - } - - dcon_sleep_val = state; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - - /* We should turn off some stuff in the framebuffer - but what? */ -} - -/* Set the source of the display (CPU or DCON) */ - -static void dcon_source_switch(struct work_struct *work) -{ - DECLARE_WAITQUEUE(wait, current); - int source = dcon_pending; - - if (dcon_source == source) - return; - - dcon_switched = 0; - - switch (source) { - case DCON_SOURCE_CPU: - - /* Enable the scanline interrupt bit */ - if (dcon_write(DCON_REG_MODE, dcon_disp_mode | MODE_SCAN_INT)) - printk(KERN_ERR "olpc-dcon: couldn't enable scanline interrupt!\n"); - else { - /* Wait up to one second for the scanline interrupt */ - wait_event_timeout(dcon_wait_queue, dcon_switched == 1, HZ); - } - - if (!dcon_switched) - printk(KERN_ERR "olpc-dcon: Timeout entering CPU mode; expect a screen glitch.\n"); - - /* - * Ideally we'd like to disable interrupts here so that the - * fb_powerup and DCON turn on happen at a known time value; - * however, we can't do that right now with fb_set_suspend - * messing with semaphores. - * - * For now, we just hope.. - */ - if (fb_powerup(fbinfo)) { - printk(KERN_ERR "olpc-dcon: Failed to enter CPU mode\n"); - dcon_pending = DCON_SOURCE_DCON; - return; - } - - /* And turn off the DCON */ - outl(1<<11, gpio_base + GPIOx_OUT_VAL); - - /* Turn off the scanline interrupt */ - if (dcon_write(DCON_REG_MODE, dcon_disp_mode)) - printk(KERN_ERR "olpc-dcon: couldn't disable scanline interrupt!\n"); - - printk(KERN_INFO "olpc-dcon: The CPU has control\n"); - break; - case DCON_SOURCE_DCON: - { - int t; - - add_wait_queue(&dcon_wait_queue, &wait); - set_current_state(TASK_UNINTERRUPTIBLE); - - /* Clear GPIO11 (DCONLOAD) - this implies that the DCON is in - control */ - - outl(1 << (11 + 16), gpio_base + GPIOx_OUT_VAL); - - t = schedule_timeout(HZ/2); - remove_wait_queue(&dcon_wait_queue, &wait); - set_current_state(TASK_RUNNING); - - if (!dcon_switched) - printk(KERN_ERR "olpc-dcon: Timeout entering DCON mode; expect a screen glitch.\n"); - - /* Turn off the graphics engine completely */ - fb_powerdown(fbinfo); - - printk(KERN_INFO "olpc-dcon: The DCON has control\n"); - break; - } - default: - BUG(); - } - - dcon_source = source; -} - -static DECLARE_WORK(dcon_work, dcon_source_switch); - -static int dcon_set_source(int arg) -{ - if (arg != DCON_SOURCE_CPU && arg != DCON_SOURCE_DCON) - return -EINVAL; - - if (dcon_pending == arg) - return 0; - - dcon_pending = arg; - if ((dcon_source != arg) && !work_pending(&dcon_work)) - schedule_work(&dcon_work); - - return 0; -} - -static int dcon_set_source_sync(int arg) -{ - int ret = dcon_set_source(arg); - if (!ret) - flush_scheduled_work(); - return ret; -} - -static int dconbl_set(struct backlight_device *dev) { - - int level = dev->props.brightness; - - if (dev->props.power != FB_BLANK_UNBLANK) - level = 0; - - dcon_set_backlight(level); - return 0; -} - -static int dconbl_get(struct backlight_device *dev) { - return dcon_get_backlight(); -} - -static ssize_t dcon_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%4.4X\n", dcon_disp_mode); -} - -static ssize_t dcon_sleep_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_sleep_val); -} - -static ssize_t /* __deprecated */ dcon_source_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - printk(KERN_WARNING "olpc-dcon: using deprecated sysfs 'source' interface; use 'freeze' instead!\n"); - return sprintf(buf, "%d\n", dcon_source); -} - -static ssize_t dcon_freeze_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_source == DCON_SOURCE_DCON ? 1 : 0); -} - -static ssize_t dcon_output_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_output); -} - -static ssize_t dcon_resumeline_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", resumeline); -} - -static int _strtoul(const char *buf, int len, unsigned int *val) -{ - - char *endp; - unsigned int output = simple_strtoul(buf, &endp, 0); - int size = endp - buf; - - if (*endp && isspace(*endp)) - size++; - - if (size != len) - return -EINVAL; - - *val = output; - return 0; -} - -static ssize_t dcon_output_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - if (_strtoul(buf, count, &output)) - return -EINVAL; - - if (output == DCON_OUTPUT_COLOR || output == DCON_OUTPUT_MONO) { - dcon_set_output(output); - rc = count; - } - - return rc; -} - -static ssize_t /* __deprecated */ dcon_source_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - printk(KERN_WARNING "olpc-dcon: using deprecated sysfs 'source' interface; use 'freeze' instead!\n"); - if (_strtoul(buf, count, &output)) - return -EINVAL; - - dcon_set_source(output); - rc = count; - - return rc; -} - -static ssize_t dcon_freeze_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - if (_strtoul(buf, count, &output)) - return rc; - - dcon_set_source(output ? DCON_SOURCE_DCON : DCON_SOURCE_CPU); - rc = count; - - return rc; -} - -static ssize_t dcon_resumeline_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int rl; - int rc = -EINVAL; - - if (_strtoul(buf, count, &rl)) - return rc; - - resumeline = rl; - dcon_write(DCON_REG_SCAN_INT, resumeline); - rc = count; - - return rc; -} - -static ssize_t dcon_sleep_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - - if (_strtoul(buf, count, &output)) - return -EINVAL; - - dcon_sleep(output ? DCON_SLEEP : DCON_ACTIVE); - return count; -} - -static struct device_attribute dcon_device_files[] = { - __ATTR(mode, 0444, dcon_mode_show, NULL), - __ATTR(sleep, 0644, dcon_sleep_show, dcon_sleep_store), - __ATTR(source, 0644, dcon_source_show, dcon_source_store), - __ATTR(freeze, 0644, dcon_freeze_show, dcon_freeze_store), - __ATTR(output, 0644, dcon_output_show, dcon_output_store), - __ATTR(resumeline, 0644, dcon_resumeline_show, dcon_resumeline_store), -}; - -static struct backlight_ops dcon_bl_ops = { - .get_brightness = dconbl_get, - .update_status = dconbl_set -}; - -/* List of GPIOs that we care about: - (in) GPIO12 -- DCONBLNK - (in) GPIO[56] -- DCONSTAT[01] - (out) GPIO11 -- DCONLOAD -*/ - -#define IN_GPIOS ((1<<5) | (1<<6) | (1<<7) | (1<<12)) -#define OUT_GPIOS (1<<11) - -static irqreturn_t dcon_interrupt(int, void *); - -static int dcon_request_irq(void) -{ - unsigned long lo, hi; - unsigned char lob; - - rdmsr(MSR_LBAR_GPIO, lo, hi); - - /* Check the mask and whether GPIO is enabled (sanity check) */ - if (hi != 0x0000f001) { - printk(KERN_ERR "GPIO not enabled -- cannot use DCON\n"); - return -ENODEV; - } - - /* Mask off the IO base address */ - gpio_base = lo & 0x0000ff00; - - /* Turn off the event enable for GPIO7 just to be safe */ - outl(1 << (16+7), gpio_base + GPIOx_EVNT_EN); - - /* Set the directions for the GPIO pins */ - outl(OUT_GPIOS | (IN_GPIOS << 16), gpio_base + GPIOx_OUT_EN); - outl(IN_GPIOS | (OUT_GPIOS << 16), gpio_base + GPIOx_IN_EN); - - /* Set up the interrupt mappings */ - - /* Set the IRQ to pair 2 */ - geode_gpio_event_irq(OLPC_GPIO_DCON_IRQ, 2); - - /* Enable group 2 to trigger the DCON interrupt */ - geode_gpio_set_irq(2, DCON_IRQ); - - /* Select edge level for interrupt (in PIC) */ - - lob = inb(0x4d0); - lob &= ~(1 << DCON_IRQ); - outb(lob, 0x4d0); - - /* Register the interupt handler */ - if (request_irq(DCON_IRQ, &dcon_interrupt, 0, "DCON", &dcon_driver)) - return -EIO; - - /* Clear INV_EN for GPIO7 (DCONIRQ) */ - outl((1<<(16+7)), gpio_base + GPIOx_INV_EN); - - /* Enable filter for GPIO12 (DCONBLANK) */ - outl(1<<(12), gpio_base + GPIOx_IN_FLTR_EN); - - /* Disable filter for GPIO7 */ - outl(1<<(16+7), gpio_base + GPIOx_IN_FLTR_EN); - - /* Disable event counter for GPIO7 (DCONIRQ) and GPIO12 (DCONBLANK) */ - - outl(1<<(16+7), gpio_base + GPIOx_EVNTCNT_EN); - outl(1<<(16+12), gpio_base + GPIOx_EVNTCNT_EN); - - /* Add GPIO12 to the Filter Event Pair #7 */ - outb(12, gpio_base + GPIO_FE7_SEL); - - /* Turn off negative Edge Enable for GPIO12 */ - outl(1<<(16+12), gpio_base + GPIOx_NEGEDGE_EN); - - /* Enable negative Edge Enable for GPIO7 */ - outl(1<<7, gpio_base + GPIOx_NEGEDGE_EN); - - /* Zero the filter amount for Filter Event Pair #7 */ - outw(0, gpio_base + GPIO_FLT7_AMNT); - - /* Clear the negative edge status for GPIO7 and GPIO12 */ - outl((1<<7) | (1<<12), gpio_base+0x4c); - - /* FIXME: Clear the posiitive status as well, just to be sure */ - outl((1<<7) | (1<<12), gpio_base+0x48); - - /* Enable events for GPIO7 (DCONIRQ) and GPIO12 (DCONBLANK) */ - outl((1<<(7))|(1<<12), gpio_base + GPIOx_EVNT_EN); - - /* Determine the current state by reading the GPIO bit */ - /* Earlier stages of the boot process have established the state */ - dcon_source = inl(gpio_base + GPIOx_OUT_VAL) & (1<<11) - ? DCON_SOURCE_CPU - : DCON_SOURCE_DCON; - dcon_pending = dcon_source; - - return 0; -} - -static int dcon_reboot_notify(struct notifier_block *nb, unsigned long foo, void *bar) -{ - if (dcon_client == NULL) - return 0; - - /* Turn off the DCON. Entirely. */ - dcon_write(DCON_REG_MODE, 0x39); - dcon_write(DCON_REG_MODE, 0x32); - return 0; -} - -static int dcon_conswitch_notify(struct notifier_block *nb, - unsigned long mode, void *dummy) -{ - if (mode == CONSOLE_EVENT_SWITCH_TEXT) - dcon_sleep(DCON_ACTIVE); - - return 0; -} - -static struct notifier_block dcon_nb = { - .notifier_call = dcon_reboot_notify, - .priority = -1, -}; - -static struct notifier_block dcon_console_nb = { - .notifier_call = dcon_conswitch_notify, - .priority = -1, -}; - -static int dcon_probe(struct i2c_adapter *adap, int addr, int kind) -{ - struct i2c_client *client; - uint16_t ver; - int rc, i; - - if (!olpc_has_dcon()) { - printk("olpc-dcon: No DCON is attached.\n"); - return -ENODEV; - } - - if (num_registered_fb >= 1) - fbinfo = registered_fb[0]; - - if (adap->id != I2C_HW_SMBUS_SCX200) { - printk(KERN_ERR "olpc-dcon: Invalid I2C bus (%d not %d)\n", - adap->id, I2C_HW_SMBUS_SCX200); - return -ENXIO; - } - - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (client == NULL) - return -ENOMEM; - - strncpy(client->name, "OLPC-DCON", I2C_NAME_SIZE); - client->addr = addr; - client->adapter = adap; - client->driver = &dcon_driver; - - if ((rc = i2c_attach_client(client)) != 0) { - printk(KERN_ERR "olpc-dcon: Unable to attach the I2C client.\n"); - goto eclient; - } - - ver = i2c_smbus_read_word_data(client, DCON_REG_ID); - - if ((ver >> 8) != 0xDC) { - printk(KERN_ERR "olpc-dcon: DCON ID not 0xDCxx: 0x%04x instead.\n", ver); - rc = -ENXIO; - goto ei2c; - } - - if ((rc = dcon_request_irq())) { - printk(KERN_ERR "olpc-dcon: Unable to grab IRQ.\n"); - goto ei2c; - } - - if (ver < 0xdc02 && !noinit) { - /* Initialize the DCON registers */ - - /* Start with work-arounds for DCON ASIC */ - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x0b, 0x007a); - i2c_smbus_write_word_data(client, 0x36, 0x025c); - i2c_smbus_write_word_data(client, 0x37, 0x025e); - - /* Initialise SDRAM */ - - i2c_smbus_write_word_data(client, 0x3b, 0x002b); - i2c_smbus_write_word_data(client, 0x41, 0x0101); - i2c_smbus_write_word_data(client, 0x42, 0x0101); - } - - /* Colour swizzle, AA, no passthrough, backlight */ - - dcon_disp_mode = MODE_PASSTHRU | MODE_BL_ENABLE | MODE_CSWIZZLE; - if (useaa) - dcon_disp_mode |= MODE_COL_AA; - i2c_smbus_write_word_data(client, DCON_REG_MODE, dcon_disp_mode); - - - /* Set the scanline to interrupt on during resume */ - - i2c_smbus_write_word_data(client, DCON_REG_SCAN_INT, resumeline); - - /* Add the DCON device */ - - dcon_device = platform_device_alloc("dcon", -1); - - if (dcon_device == NULL) { - printk(KERN_ERR "dcon: Unable to create the DCON device\n"); - rc = -ENOMEM; - goto eirq; - } - - if ((rc = platform_device_add(dcon_device))) { - printk(KERN_ERR "dcon: Unable to add the DCON device\n"); - goto edev; - } - - for(i = 0; i < ARRAY_SIZE(dcon_device_files); i++) - device_create_file(&dcon_device->dev, &dcon_device_files[i]); - - /* Add the backlight device for the DCON */ - - dcon_client = client; - - dcon_bl_dev = backlight_device_register("dcon-bl", &dcon_device->dev, - NULL, &dcon_bl_ops); - - if (IS_ERR(dcon_bl_dev)) { - printk(KERN_INFO "Could not register the backlight device for the DCON (%ld)\n", PTR_ERR(dcon_bl_dev)); - dcon_bl_dev = NULL; - } - else { - dcon_bl_dev->props.max_brightness = 15; - dcon_bl_dev->props.power = FB_BLANK_UNBLANK; - dcon_bl_dev->props.brightness = dcon_get_backlight(); - - backlight_update_status(dcon_bl_dev); - } - - register_reboot_notifier(&dcon_nb); - console_event_register(&dcon_console_nb); - - printk(KERN_INFO "olpc-dcon: Discovered DCON version %x\n", ver & 0xFF); - - return 0; - - edev: - platform_device_unregister(dcon_device); - dcon_device = NULL; - eirq: - free_irq(DCON_IRQ, &dcon_driver); - ei2c: - i2c_detach_client(client); - eclient: - kfree(client); - - return rc; -} - -static int dcon_attach(struct i2c_adapter *adap) -{ - int ret; - - ret = i2c_probe(adap, &addr_data, dcon_probe); - - if (dcon_client == NULL) - printk(KERN_ERR "olpc-dcon: No DCON found on SMBus\n"); - - return ret; -} - -static int dcon_detach(struct i2c_client *client) -{ - int rc; - dcon_client = NULL; - - unregister_reboot_notifier(&dcon_nb); - console_event_unregister(&dcon_console_nb); - - free_irq(DCON_IRQ, &dcon_driver); - - if ((rc = i2c_detach_client(client)) == 0) - kfree(i2c_get_clientdata(client)); - - if (dcon_bl_dev != NULL) - backlight_device_unregister(dcon_bl_dev); - - if (dcon_device != NULL) - platform_device_unregister(dcon_device); - cancel_work_sync(&dcon_work); - - return rc; -} - - -#ifdef CONFIG_PM -static int dcon_suspend(struct i2c_client *client, pm_message_t state) -{ - if (dcon_sleep_val != DCON_ACTIVE) - return 0; - - /* Set up the DCON to have the source */ - return dcon_set_source_sync(DCON_SOURCE_DCON); -} - -static int dcon_resume(struct i2c_client *client) -{ - int x; - if (dcon_sleep_val != DCON_ACTIVE) - return 0; - - /* HACK: ensure the bus is stable */ - do { - x = dcon_read(DCON_REG_ID); - } while (x < 0); - - return dcon_set_source(DCON_SOURCE_CPU); -} - -#endif - -static irqreturn_t dcon_interrupt(int irq, void *id) -{ - int status = inl(gpio_base + GPIOx_READ_BACK) >> 5; - - /* Clear the negative edge status for GPIO7 */ - outl(1 << 7, gpio_base + GPIOx_NEGEDGE_STS); - - switch (status & 3) { - case 3: - printk(KERN_DEBUG "olpc-dcon: DCONLOAD_MISSED interrupt\n"); - break; - case 2: /* switch to DCON mode */ - case 1: /* switch to CPU mode */ - dcon_switched = 1; - wake_up(&dcon_wait_queue); - break; - case 0: - printk(KERN_DEBUG "olpc-dcon: scanline interrupt w/CPU\n"); - } - - return IRQ_HANDLED; -} - -static struct i2c_driver dcon_driver = { - .driver = { - .name = "OLPC-DCON", - }, - .id = I2C_DRIVERID_DCON, - .attach_adapter = dcon_attach, - .detach_client = dcon_detach, -#ifdef CONFIG_PM - .suspend = dcon_suspend, - .resume = dcon_resume, -#endif -}; - - -static int __init olpc_dcon_init(void) -{ - i2c_add_driver(&dcon_driver); - return 0; -} - -static void __exit olpc_dcon_exit(void) -{ - i2c_del_driver(&dcon_driver); -} - -module_init(olpc_dcon_init); -module_exit(olpc_dcon_exit); - -MODULE_LICENSE("GPL"); diff --git a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.h b/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.h deleted file mode 100644 index 6453ca4ba0..0000000000 --- a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.h +++ /dev/null @@ -1,75 +0,0 @@ -#ifndef OLPC_DCON_H_ -#define OLPC_DCON_H_ - -/* DCON registers */ - -#define DCON_REG_ID 0 -#define DCON_REG_MODE 1 - -#define MODE_PASSTHRU (1<<0) -#define MODE_SLEEP (1<<1) -#define MODE_SLEEP_AUTO (1<<2) -#define MODE_BL_ENABLE (1<<3) -#define MODE_BLANK (1<<4) -#define MODE_CSWIZZLE (1<<5) -#define MODE_COL_AA (1<<6) -#define MODE_MONO_LUMA (1<<7) -#define MODE_SCAN_INT (1<<8) -#define MODE_CLOCKDIV (1<<9) -#define MODE_DEBUG (1<<14) -#define MODE_SELFTEST (1<<15) - -#define DCON_REG_HRES 2 -#define DCON_REG_HTOTAL 3 -#define DCON_REG_HSYNC_WIDTH 4 -#define DCON_REG_VRES 5 -#define DCON_REG_VTOTAL 6 -#define DCON_REG_VSYNC_WIDTH 7 -#define DCON_REG_TIMEOUT 8 -#define DCON_REG_SCAN_INT 9 -#define DCON_REG_BRIGHT 10 - -/* GPIO registers (CS5536) */ - -#define MSR_LBAR_GPIO 0x5140000C - -#define GPIOx_OUT_VAL 0x00 -#define GPIOx_OUT_EN 0x04 -#define GPIOx_IN_EN 0x20 -#define GPIOx_INV_EN 0x24 -#define GPIOx_IN_FLTR_EN 0x28 -#define GPIOx_EVNTCNT_EN 0x2C -#define GPIOx_READ_BACK 0x30 -#define GPIOx_EVNT_EN 0x38 -#define GPIOx_NEGEDGE_EN 0x44 -#define GPIOx_NEGEDGE_STS 0x4C -#define GPIO_FLT7_AMNT 0xD8 -#define GPIO_MAP_X 0xE0 -#define GPIO_MAP_Y 0xE4 -#define GPIO_FE7_SEL 0xF7 - - -/* Status values */ - -#define DCONSTAT_SCANINT 0 -#define DCONSTAT_SCANINT_DCON 1 -#define DCONSTAT_DISPLAYLOAD 2 -#define DCONSTAT_MISSED 3 - -/* Source values */ - -#define DCON_SOURCE_DCON 0 -#define DCON_SOURCE_CPU 1 - -/* Output values */ -#define DCON_OUTPUT_COLOR 0 -#define DCON_OUTPUT_MONO 1 - -/* Sleep values */ -#define DCON_ACTIVE 0 -#define DCON_SLEEP 1 - -/* Interrupt */ -#define DCON_IRQ 6 - -#endif |