diff options
Diffstat (limited to 'drivers/staging/msm/mdp_cursor.c')
-rw-r--r-- | drivers/staging/msm/mdp_cursor.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/staging/msm/mdp_cursor.c b/drivers/staging/msm/mdp_cursor.c new file mode 100644 index 0000000..7d28f30 --- /dev/null +++ b/drivers/staging/msm/mdp_cursor.c @@ -0,0 +1,104 @@ +/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/time.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/hrtimer.h> + +#include <mach/hardware.h> +#include <asm/io.h> + +#include <asm/system.h> +#include <asm/mach-types.h> +#include <linux/semaphore.h> +#include <linux/spinlock.h> + +#include <linux/fb.h> + +#include "mdp.h" +#include "msm_fb.h" + +static int cursor_enabled; + +int mdp_hw_cursor_update(struct fb_info *info, struct fb_cursor *cursor) +{ + struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par; + struct fb_image *img = &cursor->image; + int calpha_en, transp_en; + int alpha; + int ret = 0; + + if ((img->width > MDP_CURSOR_WIDTH) || + (img->height > MDP_CURSOR_HEIGHT) || + (img->depth != 32)) + return -EINVAL; + + if (cursor->set & FB_CUR_SETPOS) + MDP_OUTP(MDP_BASE + 0x9004c, (img->dy << 16) | img->dx); + + if (cursor->set & FB_CUR_SETIMAGE) { + ret = copy_from_user(mfd->cursor_buf, img->data, + img->width*img->height*4); + if (ret) + return ret; + + if (img->bg_color == 0xffffffff) + transp_en = 0; + else + transp_en = 1; + + alpha = (img->fg_color & 0xff000000) >> 24; + + if (alpha) + calpha_en = 0x2; /* xrgb */ + else + calpha_en = 0x1; /* argb */ + + MDP_OUTP(MDP_BASE + 0x90044, (img->height << 16) | img->width); + MDP_OUTP(MDP_BASE + 0x90048, mfd->cursor_buf_phys); + /* order the writes the cursor_buf before updating the + * hardware */ +// dma_coherent_pre_ops(); + MDP_OUTP(MDP_BASE + 0x90060, + (transp_en << 3) | (calpha_en << 1) | + (inp32(MDP_BASE + 0x90060) & 0x1)); +#ifdef CONFIG_FB_MSM_MDP40 + MDP_OUTP(MDP_BASE + 0x90064, (alpha << 24)); + MDP_OUTP(MDP_BASE + 0x90068, (0xffffff & img->bg_color)); + MDP_OUTP(MDP_BASE + 0x9006C, (0xffffff & img->bg_color)); +#else + MDP_OUTP(MDP_BASE + 0x90064, + (alpha << 24) | (0xffffff & img->bg_color)); + MDP_OUTP(MDP_BASE + 0x90068, 0); +#endif + } + + if ((cursor->enable) && (!cursor_enabled)) { + cursor_enabled = 1; + MDP_OUTP(MDP_BASE + 0x90060, inp32(MDP_BASE + 0x90060) | 0x1); + } else if ((!cursor->enable) && (cursor_enabled)) { + cursor_enabled = 0; + MDP_OUTP(MDP_BASE + 0x90060, + inp32(MDP_BASE + 0x90060) & (~0x1)); + } + + return 0; +} |