1/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. 2 * 3 * This program is free software; you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License version 2 and 5 * only version 2 as published by the Free Software Foundation. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 15 * 02110-1301, USA. 16 */ 17 18#include <linux/module.h> 19#include <linux/kernel.h> 20#include <linux/sched.h> 21#include <linux/time.h> 22#include <linux/init.h> 23#include <linux/interrupt.h> 24#include <linux/hrtimer.h> 25 26#include <mach/hardware.h> 27#include <asm/io.h> 28 29#include <asm/system.h> 30#include <asm/mach-types.h> 31#include <linux/semaphore.h> 32#include <linux/spinlock.h> 33 34#include <linux/fb.h> 35 36#include "mdp.h" 37#include "msm_fb.h" 38 39static int cursor_enabled; 40 41int mdp_hw_cursor_update(struct fb_info *info, struct fb_cursor *cursor) 42{ 43 struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; 44 struct fb_image *img = &cursor->image; 45 int calpha_en, transp_en; 46 int alpha; 47 int ret = 0; 48 49 if ((img->width > MDP_CURSOR_WIDTH) || 50 (img->height > MDP_CURSOR_HEIGHT) || 51 (img->depth != 32)) 52 return -EINVAL; 53 54 if (cursor->set & FB_CUR_SETPOS) 55 MDP_OUTP(MDP_BASE + 0x9004c, (img->dy << 16) | img->dx); 56 57 if (cursor->set & FB_CUR_SETIMAGE) { 58 ret = copy_from_user(mfd->cursor_buf, img->data, 59 img->width*img->height*4); 60 if (ret) 61 return ret; 62 63 if (img->bg_color == 0xffffffff) 64 transp_en = 0; 65 else 66 transp_en = 1; 67 68 alpha = (img->fg_color & 0xff000000) >> 24; 69 70 if (alpha) 71 calpha_en = 0x2; /* xrgb */ 72 else 73 calpha_en = 0x1; /* argb */ 74 75 MDP_OUTP(MDP_BASE + 0x90044, (img->height << 16) | img->width); 76 MDP_OUTP(MDP_BASE + 0x90048, mfd->cursor_buf_phys); 77 /* order the writes the cursor_buf before updating the 78 * hardware */ 79// dma_coherent_pre_ops(); 80 MDP_OUTP(MDP_BASE + 0x90060, 81 (transp_en << 3) | (calpha_en << 1) | 82 (inp32(MDP_BASE + 0x90060) & 0x1)); 83#ifdef CONFIG_FB_MSM_MDP40 84 MDP_OUTP(MDP_BASE + 0x90064, (alpha << 24)); 85 MDP_OUTP(MDP_BASE + 0x90068, (0xffffff & img->bg_color)); 86 MDP_OUTP(MDP_BASE + 0x9006C, (0xffffff & img->bg_color)); 87#else 88 MDP_OUTP(MDP_BASE + 0x90064, 89 (alpha << 24) | (0xffffff & img->bg_color)); 90 MDP_OUTP(MDP_BASE + 0x90068, 0); 91#endif 92 } 93 94 if ((cursor->enable) && (!cursor_enabled)) { 95 cursor_enabled = 1; 96 MDP_OUTP(MDP_BASE + 0x90060, inp32(MDP_BASE + 0x90060) | 0x1); 97 } else if ((!cursor->enable) && (cursor_enabled)) { 98 cursor_enabled = 0; 99 MDP_OUTP(MDP_BASE + 0x90060, 100 inp32(MDP_BASE + 0x90060) & (~0x1)); 101 } 102 103 return 0; 104} 105