9d20015391
Qualcomm development of the MSM SOC framebuffer driver has diverged significantly from the driver used by Android. This is a snapshot of our current driver, in all it's agony. We are putting this in staging to help with the process of converging the two drivers. At this point, the driver has been tested only in dumb framebuffer mode. Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org> Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> [dwalker@codeaurora.org: added a small compile fix and TODO.] Signed-off-by: Daniel Walker <dwalker@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/time.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/hrtimer.h>
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#include <mach/hardware.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <asm/mach-types.h>
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#include <linux/semaphore.h>
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#include <linux/spinlock.h>
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#include <linux/fb.h>
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#include "mdp.h"
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#include "msm_fb.h"
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static int cursor_enabled;
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int mdp_hw_cursor_update(struct fb_info *info, struct fb_cursor *cursor)
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{
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struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par;
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struct fb_image *img = &cursor->image;
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int calpha_en, transp_en;
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int alpha;
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int ret = 0;
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if ((img->width > MDP_CURSOR_WIDTH) ||
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(img->height > MDP_CURSOR_HEIGHT) ||
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(img->depth != 32))
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return -EINVAL;
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if (cursor->set & FB_CUR_SETPOS)
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MDP_OUTP(MDP_BASE + 0x9004c, (img->dy << 16) | img->dx);
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if (cursor->set & FB_CUR_SETIMAGE) {
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ret = copy_from_user(mfd->cursor_buf, img->data,
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img->width*img->height*4);
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if (ret)
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return ret;
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if (img->bg_color == 0xffffffff)
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transp_en = 0;
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else
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transp_en = 1;
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alpha = (img->fg_color & 0xff000000) >> 24;
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if (alpha)
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calpha_en = 0x2; /* xrgb */
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else
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calpha_en = 0x1; /* argb */
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MDP_OUTP(MDP_BASE + 0x90044, (img->height << 16) | img->width);
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MDP_OUTP(MDP_BASE + 0x90048, mfd->cursor_buf_phys);
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/* order the writes the cursor_buf before updating the
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* hardware */
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// dma_coherent_pre_ops();
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MDP_OUTP(MDP_BASE + 0x90060,
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(transp_en << 3) | (calpha_en << 1) |
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(inp32(MDP_BASE + 0x90060) & 0x1));
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#ifdef CONFIG_FB_MSM_MDP40
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MDP_OUTP(MDP_BASE + 0x90064, (alpha << 24));
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MDP_OUTP(MDP_BASE + 0x90068, (0xffffff & img->bg_color));
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MDP_OUTP(MDP_BASE + 0x9006C, (0xffffff & img->bg_color));
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#else
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MDP_OUTP(MDP_BASE + 0x90064,
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(alpha << 24) | (0xffffff & img->bg_color));
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MDP_OUTP(MDP_BASE + 0x90068, 0);
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#endif
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}
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if ((cursor->enable) && (!cursor_enabled)) {
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cursor_enabled = 1;
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MDP_OUTP(MDP_BASE + 0x90060, inp32(MDP_BASE + 0x90060) | 0x1);
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} else if ((!cursor->enable) && (cursor_enabled)) {
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cursor_enabled = 0;
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MDP_OUTP(MDP_BASE + 0x90060,
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inp32(MDP_BASE + 0x90060) & (~0x1));
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}
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return 0;
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}
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