![Tomi Valkeinen](/assets/img/avatar_default.png)
Implement auto-update mode for manual-update displays. omapfb driver uses a delayed work to update the display with a constant rate. The update mode can be changed via OMAPFB_SET_UPDATE_MODE ioctl, which previously called omapdss but is now handled inside omapfb, and a new sysfs file, "update_mode". The update interval is by default 20 times per second, but can be changed via "auto_update_freq" module parameter. There is also a new module parameter "auto_update", which will make omapfb start manual update displays in auto-update mode. This auto-update mode can be used for testing if the userspace does not support manual update displays properly. However, it is a very inefficient solution, and should be considered more as a hack for testing than something that could be used as a long term solution. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2516 lines
56 KiB
C
2516 lines
56 KiB
C
/*
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* linux/drivers/video/omap2/omapfb-main.c
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*
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* Copyright (C) 2008 Nokia Corporation
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* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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*
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* Some code and ideas taken from drivers/video/omap/ driver
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* by Imre Deak.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/fb.h>
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#include <linux/dma-mapping.h>
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#include <linux/vmalloc.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/omapfb.h>
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#include <video/omapdss.h>
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#include <plat/vram.h>
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#include <plat/vrfb.h>
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#include "omapfb.h"
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#define MODULE_NAME "omapfb"
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#define OMAPFB_PLANE_XRES_MIN 8
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#define OMAPFB_PLANE_YRES_MIN 8
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static char *def_mode;
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static char *def_vram;
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static int def_vrfb;
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static int def_rotate;
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static int def_mirror;
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static bool auto_update;
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static unsigned int auto_update_freq;
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module_param(auto_update, bool, 0);
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module_param(auto_update_freq, uint, 0644);
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#ifdef DEBUG
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unsigned int omapfb_debug;
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module_param_named(debug, omapfb_debug, bool, 0644);
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static unsigned int omapfb_test_pattern;
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module_param_named(test, omapfb_test_pattern, bool, 0644);
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#endif
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static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi);
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static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
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struct omap_dss_device *dssdev);
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#ifdef DEBUG
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static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
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{
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struct fb_var_screeninfo *var = &fbi->var;
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struct fb_fix_screeninfo *fix = &fbi->fix;
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void __iomem *addr = fbi->screen_base;
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const unsigned bytespp = var->bits_per_pixel >> 3;
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const unsigned line_len = fix->line_length / bytespp;
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int r = (color >> 16) & 0xff;
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int g = (color >> 8) & 0xff;
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int b = (color >> 0) & 0xff;
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if (var->bits_per_pixel == 16) {
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u16 __iomem *p = (u16 __iomem *)addr;
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p += y * line_len + x;
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r = r * 32 / 256;
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g = g * 64 / 256;
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b = b * 32 / 256;
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__raw_writew((r << 11) | (g << 5) | (b << 0), p);
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} else if (var->bits_per_pixel == 24) {
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u8 __iomem *p = (u8 __iomem *)addr;
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p += (y * line_len + x) * 3;
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__raw_writeb(b, p + 0);
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__raw_writeb(g, p + 1);
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__raw_writeb(r, p + 2);
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} else if (var->bits_per_pixel == 32) {
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u32 __iomem *p = (u32 __iomem *)addr;
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p += y * line_len + x;
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__raw_writel(color, p);
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}
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}
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static void fill_fb(struct fb_info *fbi)
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{
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struct fb_var_screeninfo *var = &fbi->var;
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const short w = var->xres_virtual;
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const short h = var->yres_virtual;
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void __iomem *addr = fbi->screen_base;
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int y, x;
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if (!addr)
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return;
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DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++) {
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if (x < 20 && y < 20)
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draw_pixel(fbi, x, y, 0xffffff);
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else if (x < 20 && (y > 20 && y < h - 20))
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draw_pixel(fbi, x, y, 0xff);
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else if (y < 20 && (x > 20 && x < w - 20))
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draw_pixel(fbi, x, y, 0xff00);
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else if (x > w - 20 && (y > 20 && y < h - 20))
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draw_pixel(fbi, x, y, 0xff0000);
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else if (y > h - 20 && (x > 20 && x < w - 20))
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draw_pixel(fbi, x, y, 0xffff00);
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else if (x == 20 || x == w - 20 ||
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y == 20 || y == h - 20)
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draw_pixel(fbi, x, y, 0xffffff);
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else if (x == y || w - x == h - y)
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draw_pixel(fbi, x, y, 0xff00ff);
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else if (w - x == y || x == h - y)
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draw_pixel(fbi, x, y, 0x00ffff);
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else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
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int t = x * 3 / w;
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unsigned r = 0, g = 0, b = 0;
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unsigned c;
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if (var->bits_per_pixel == 16) {
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if (t == 0)
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b = (y % 32) * 256 / 32;
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else if (t == 1)
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g = (y % 64) * 256 / 64;
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else if (t == 2)
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r = (y % 32) * 256 / 32;
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} else {
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if (t == 0)
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b = (y % 256);
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else if (t == 1)
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g = (y % 256);
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else if (t == 2)
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r = (y % 256);
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}
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c = (r << 16) | (g << 8) | (b << 0);
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draw_pixel(fbi, x, y, c);
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} else {
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draw_pixel(fbi, x, y, 0);
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}
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}
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}
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}
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#endif
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static unsigned omapfb_get_vrfb_offset(const struct omapfb_info *ofbi, int rot)
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{
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const struct vrfb *vrfb = &ofbi->region->vrfb;
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unsigned offset;
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switch (rot) {
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case FB_ROTATE_UR:
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offset = 0;
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break;
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case FB_ROTATE_CW:
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offset = vrfb->yoffset;
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break;
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case FB_ROTATE_UD:
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offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
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break;
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case FB_ROTATE_CCW:
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offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
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break;
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default:
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BUG();
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}
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offset *= vrfb->bytespp;
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return offset;
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}
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static u32 omapfb_get_region_rot_paddr(const struct omapfb_info *ofbi, int rot)
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{
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if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
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return ofbi->region->vrfb.paddr[rot]
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+ omapfb_get_vrfb_offset(ofbi, rot);
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} else {
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return ofbi->region->paddr;
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}
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}
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static u32 omapfb_get_region_paddr(const struct omapfb_info *ofbi)
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{
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if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
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return ofbi->region->vrfb.paddr[0];
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else
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return ofbi->region->paddr;
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}
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static void __iomem *omapfb_get_region_vaddr(const struct omapfb_info *ofbi)
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{
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if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
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return ofbi->region->vrfb.vaddr[0];
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else
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return ofbi->region->vaddr;
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}
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static struct omapfb_colormode omapfb_colormodes[] = {
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{
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.dssmode = OMAP_DSS_COLOR_UYVY,
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.bits_per_pixel = 16,
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.nonstd = OMAPFB_COLOR_YUV422,
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}, {
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.dssmode = OMAP_DSS_COLOR_YUV2,
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.bits_per_pixel = 16,
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.nonstd = OMAPFB_COLOR_YUY422,
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}, {
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.dssmode = OMAP_DSS_COLOR_ARGB16,
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.bits_per_pixel = 16,
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.red = { .length = 4, .offset = 8, .msb_right = 0 },
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.green = { .length = 4, .offset = 4, .msb_right = 0 },
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.blue = { .length = 4, .offset = 0, .msb_right = 0 },
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.transp = { .length = 4, .offset = 12, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_RGB16,
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.bits_per_pixel = 16,
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.red = { .length = 5, .offset = 11, .msb_right = 0 },
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.green = { .length = 6, .offset = 5, .msb_right = 0 },
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.blue = { .length = 5, .offset = 0, .msb_right = 0 },
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.transp = { .length = 0, .offset = 0, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_RGB24P,
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.bits_per_pixel = 24,
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.red = { .length = 8, .offset = 16, .msb_right = 0 },
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.green = { .length = 8, .offset = 8, .msb_right = 0 },
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.blue = { .length = 8, .offset = 0, .msb_right = 0 },
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.transp = { .length = 0, .offset = 0, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_RGB24U,
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.bits_per_pixel = 32,
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.red = { .length = 8, .offset = 16, .msb_right = 0 },
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.green = { .length = 8, .offset = 8, .msb_right = 0 },
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.blue = { .length = 8, .offset = 0, .msb_right = 0 },
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.transp = { .length = 0, .offset = 0, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_ARGB32,
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.bits_per_pixel = 32,
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.red = { .length = 8, .offset = 16, .msb_right = 0 },
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.green = { .length = 8, .offset = 8, .msb_right = 0 },
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.blue = { .length = 8, .offset = 0, .msb_right = 0 },
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.transp = { .length = 8, .offset = 24, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_RGBA32,
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.bits_per_pixel = 32,
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.red = { .length = 8, .offset = 24, .msb_right = 0 },
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.green = { .length = 8, .offset = 16, .msb_right = 0 },
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.blue = { .length = 8, .offset = 8, .msb_right = 0 },
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.transp = { .length = 8, .offset = 0, .msb_right = 0 },
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}, {
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.dssmode = OMAP_DSS_COLOR_RGBX32,
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.bits_per_pixel = 32,
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.red = { .length = 8, .offset = 24, .msb_right = 0 },
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.green = { .length = 8, .offset = 16, .msb_right = 0 },
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.blue = { .length = 8, .offset = 8, .msb_right = 0 },
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.transp = { .length = 0, .offset = 0, .msb_right = 0 },
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},
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};
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static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
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struct omapfb_colormode *color)
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{
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bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
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{
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return f1->length == f2->length &&
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f1->offset == f2->offset &&
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f1->msb_right == f2->msb_right;
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}
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if (var->bits_per_pixel == 0 ||
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var->red.length == 0 ||
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var->blue.length == 0 ||
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var->green.length == 0)
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return 0;
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return var->bits_per_pixel == color->bits_per_pixel &&
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cmp_component(&var->red, &color->red) &&
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cmp_component(&var->green, &color->green) &&
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cmp_component(&var->blue, &color->blue) &&
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cmp_component(&var->transp, &color->transp);
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}
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static void assign_colormode_to_var(struct fb_var_screeninfo *var,
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struct omapfb_colormode *color)
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{
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var->bits_per_pixel = color->bits_per_pixel;
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var->nonstd = color->nonstd;
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var->red = color->red;
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var->green = color->green;
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var->blue = color->blue;
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var->transp = color->transp;
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}
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static int fb_mode_to_dss_mode(struct fb_var_screeninfo *var,
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enum omap_color_mode *mode)
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{
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enum omap_color_mode dssmode;
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int i;
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/* first match with nonstd field */
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if (var->nonstd) {
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for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
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struct omapfb_colormode *m = &omapfb_colormodes[i];
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if (var->nonstd == m->nonstd) {
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assign_colormode_to_var(var, m);
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*mode = m->dssmode;
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return 0;
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}
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}
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return -EINVAL;
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}
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/* then try exact match of bpp and colors */
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for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
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struct omapfb_colormode *m = &omapfb_colormodes[i];
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if (cmp_var_to_colormode(var, m)) {
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assign_colormode_to_var(var, m);
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*mode = m->dssmode;
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return 0;
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}
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}
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/* match with bpp if user has not filled color fields
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* properly */
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switch (var->bits_per_pixel) {
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case 1:
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dssmode = OMAP_DSS_COLOR_CLUT1;
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break;
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case 2:
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dssmode = OMAP_DSS_COLOR_CLUT2;
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break;
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case 4:
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dssmode = OMAP_DSS_COLOR_CLUT4;
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break;
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case 8:
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dssmode = OMAP_DSS_COLOR_CLUT8;
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break;
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case 12:
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dssmode = OMAP_DSS_COLOR_RGB12U;
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break;
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case 16:
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dssmode = OMAP_DSS_COLOR_RGB16;
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break;
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case 24:
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dssmode = OMAP_DSS_COLOR_RGB24P;
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break;
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case 32:
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dssmode = OMAP_DSS_COLOR_RGB24U;
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break;
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default:
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return -EINVAL;
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}
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for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
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struct omapfb_colormode *m = &omapfb_colormodes[i];
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if (dssmode == m->dssmode) {
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assign_colormode_to_var(var, m);
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*mode = m->dssmode;
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return 0;
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}
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}
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return -EINVAL;
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}
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static int check_fb_res_bounds(struct fb_var_screeninfo *var)
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{
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int xres_min = OMAPFB_PLANE_XRES_MIN;
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int xres_max = 2048;
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int yres_min = OMAPFB_PLANE_YRES_MIN;
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int yres_max = 2048;
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/* XXX: some applications seem to set virtual res to 0. */
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if (var->xres_virtual == 0)
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var->xres_virtual = var->xres;
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if (var->yres_virtual == 0)
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var->yres_virtual = var->yres;
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if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
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return -EINVAL;
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if (var->xres < xres_min)
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var->xres = xres_min;
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if (var->yres < yres_min)
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var->yres = yres_min;
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if (var->xres > xres_max)
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var->xres = xres_max;
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if (var->yres > yres_max)
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var->yres = yres_max;
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if (var->xres > var->xres_virtual)
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var->xres = var->xres_virtual;
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if (var->yres > var->yres_virtual)
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var->yres = var->yres_virtual;
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return 0;
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}
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static void shrink_height(unsigned long max_frame_size,
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struct fb_var_screeninfo *var)
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{
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DBG("can't fit FB into memory, reducing y\n");
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var->yres_virtual = max_frame_size /
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(var->xres_virtual * var->bits_per_pixel >> 3);
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if (var->yres_virtual < OMAPFB_PLANE_YRES_MIN)
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var->yres_virtual = OMAPFB_PLANE_YRES_MIN;
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if (var->yres > var->yres_virtual)
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var->yres = var->yres_virtual;
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}
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static void shrink_width(unsigned long max_frame_size,
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struct fb_var_screeninfo *var)
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{
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DBG("can't fit FB into memory, reducing x\n");
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var->xres_virtual = max_frame_size / var->yres_virtual /
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(var->bits_per_pixel >> 3);
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if (var->xres_virtual < OMAPFB_PLANE_XRES_MIN)
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var->xres_virtual = OMAPFB_PLANE_XRES_MIN;
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if (var->xres > var->xres_virtual)
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var->xres = var->xres_virtual;
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}
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static int check_vrfb_fb_size(unsigned long region_size,
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const struct fb_var_screeninfo *var)
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{
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unsigned long min_phys_size = omap_vrfb_min_phys_size(var->xres_virtual,
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var->yres_virtual, var->bits_per_pixel >> 3);
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return min_phys_size > region_size ? -EINVAL : 0;
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|
}
|
|
|
|
static int check_fb_size(const struct omapfb_info *ofbi,
|
|
struct fb_var_screeninfo *var)
|
|
{
|
|
unsigned long max_frame_size = ofbi->region->size;
|
|
int bytespp = var->bits_per_pixel >> 3;
|
|
unsigned long line_size = var->xres_virtual * bytespp;
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
/* One needs to check for both VRFB and OMAPFB limitations. */
|
|
if (check_vrfb_fb_size(max_frame_size, var))
|
|
shrink_height(omap_vrfb_max_height(
|
|
max_frame_size, var->xres_virtual, bytespp) *
|
|
line_size, var);
|
|
|
|
if (check_vrfb_fb_size(max_frame_size, var)) {
|
|
DBG("cannot fit FB to memory\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
|
|
|
|
if (line_size * var->yres_virtual > max_frame_size)
|
|
shrink_height(max_frame_size, var);
|
|
|
|
if (line_size * var->yres_virtual > max_frame_size) {
|
|
shrink_width(max_frame_size, var);
|
|
line_size = var->xres_virtual * bytespp;
|
|
}
|
|
|
|
if (line_size * var->yres_virtual > max_frame_size) {
|
|
DBG("cannot fit FB to memory\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Consider if VRFB assisted rotation is in use and if the virtual space for
|
|
* the zero degree view needs to be mapped. The need for mapping also acts as
|
|
* the trigger for setting up the hardware on the context in question. This
|
|
* ensures that one does not attempt to access the virtual view before the
|
|
* hardware is serving the address translations.
|
|
*/
|
|
static int setup_vrfb_rotation(struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_mem_region *rg = ofbi->region;
|
|
struct vrfb *vrfb = &rg->vrfb;
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
struct fb_fix_screeninfo *fix = &fbi->fix;
|
|
unsigned bytespp;
|
|
bool yuv_mode;
|
|
enum omap_color_mode mode;
|
|
int r;
|
|
bool reconf;
|
|
|
|
if (!rg->size || ofbi->rotation_type != OMAP_DSS_ROT_VRFB)
|
|
return 0;
|
|
|
|
DBG("setup_vrfb_rotation\n");
|
|
|
|
r = fb_mode_to_dss_mode(var, &mode);
|
|
if (r)
|
|
return r;
|
|
|
|
bytespp = var->bits_per_pixel >> 3;
|
|
|
|
yuv_mode = mode == OMAP_DSS_COLOR_YUV2 || mode == OMAP_DSS_COLOR_UYVY;
|
|
|
|
/* We need to reconfigure VRFB if the resolution changes, if yuv mode
|
|
* is enabled/disabled, or if bytes per pixel changes */
|
|
|
|
/* XXX we shouldn't allow this when framebuffer is mmapped */
|
|
|
|
reconf = false;
|
|
|
|
if (yuv_mode != vrfb->yuv_mode)
|
|
reconf = true;
|
|
else if (bytespp != vrfb->bytespp)
|
|
reconf = true;
|
|
else if (vrfb->xres != var->xres_virtual ||
|
|
vrfb->yres != var->yres_virtual)
|
|
reconf = true;
|
|
|
|
if (vrfb->vaddr[0] && reconf) {
|
|
fbi->screen_base = NULL;
|
|
fix->smem_start = 0;
|
|
fix->smem_len = 0;
|
|
iounmap(vrfb->vaddr[0]);
|
|
vrfb->vaddr[0] = NULL;
|
|
DBG("setup_vrfb_rotation: reset fb\n");
|
|
}
|
|
|
|
if (vrfb->vaddr[0])
|
|
return 0;
|
|
|
|
omap_vrfb_setup(&rg->vrfb, rg->paddr,
|
|
var->xres_virtual,
|
|
var->yres_virtual,
|
|
bytespp, yuv_mode);
|
|
|
|
/* Now one can ioremap the 0 angle view */
|
|
r = omap_vrfb_map_angle(vrfb, var->yres_virtual, 0);
|
|
if (r)
|
|
return r;
|
|
|
|
/* used by open/write in fbmem.c */
|
|
fbi->screen_base = ofbi->region->vrfb.vaddr[0];
|
|
|
|
fix->smem_start = ofbi->region->vrfb.paddr[0];
|
|
|
|
switch (var->nonstd) {
|
|
case OMAPFB_COLOR_YUV422:
|
|
case OMAPFB_COLOR_YUY422:
|
|
fix->line_length =
|
|
(OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
|
|
break;
|
|
default:
|
|
fix->line_length =
|
|
(OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
|
|
break;
|
|
}
|
|
|
|
fix->smem_len = var->yres_virtual * fix->line_length;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
|
|
struct fb_var_screeninfo *var)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
|
|
struct omapfb_colormode *mode = &omapfb_colormodes[i];
|
|
if (dssmode == mode->dssmode) {
|
|
assign_colormode_to_var(var, mode);
|
|
return 0;
|
|
}
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
void set_fb_fix(struct fb_info *fbi)
|
|
{
|
|
struct fb_fix_screeninfo *fix = &fbi->fix;
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_mem_region *rg = ofbi->region;
|
|
|
|
DBG("set_fb_fix\n");
|
|
|
|
/* used by open/write in fbmem.c */
|
|
fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
|
|
|
|
/* used by mmap in fbmem.c */
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
switch (var->nonstd) {
|
|
case OMAPFB_COLOR_YUV422:
|
|
case OMAPFB_COLOR_YUY422:
|
|
fix->line_length =
|
|
(OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
|
|
break;
|
|
default:
|
|
fix->line_length =
|
|
(OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
|
|
break;
|
|
}
|
|
|
|
fix->smem_len = var->yres_virtual * fix->line_length;
|
|
} else {
|
|
fix->line_length =
|
|
(var->xres_virtual * var->bits_per_pixel) >> 3;
|
|
fix->smem_len = rg->size;
|
|
}
|
|
|
|
fix->smem_start = omapfb_get_region_paddr(ofbi);
|
|
|
|
fix->type = FB_TYPE_PACKED_PIXELS;
|
|
|
|
if (var->nonstd)
|
|
fix->visual = FB_VISUAL_PSEUDOCOLOR;
|
|
else {
|
|
switch (var->bits_per_pixel) {
|
|
case 32:
|
|
case 24:
|
|
case 16:
|
|
case 12:
|
|
fix->visual = FB_VISUAL_TRUECOLOR;
|
|
/* 12bpp is stored in 16 bits */
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
case 8:
|
|
fix->visual = FB_VISUAL_PSEUDOCOLOR;
|
|
break;
|
|
}
|
|
}
|
|
|
|
fix->accel = FB_ACCEL_NONE;
|
|
|
|
fix->xpanstep = 1;
|
|
fix->ypanstep = 1;
|
|
}
|
|
|
|
/* check new var and possibly modify it to be ok */
|
|
int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omap_dss_device *display = fb2display(fbi);
|
|
enum omap_color_mode mode = 0;
|
|
int i;
|
|
int r;
|
|
|
|
DBG("check_fb_var %d\n", ofbi->id);
|
|
|
|
WARN_ON(!atomic_read(&ofbi->region->lock_count));
|
|
|
|
r = fb_mode_to_dss_mode(var, &mode);
|
|
if (r) {
|
|
DBG("cannot convert var to omap dss mode\n");
|
|
return r;
|
|
}
|
|
|
|
for (i = 0; i < ofbi->num_overlays; ++i) {
|
|
if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
|
|
DBG("invalid mode\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (var->rotate > 3)
|
|
return -EINVAL;
|
|
|
|
if (check_fb_res_bounds(var))
|
|
return -EINVAL;
|
|
|
|
/* When no memory is allocated ignore the size check */
|
|
if (ofbi->region->size != 0 && check_fb_size(ofbi, var))
|
|
return -EINVAL;
|
|
|
|
if (var->xres + var->xoffset > var->xres_virtual)
|
|
var->xoffset = var->xres_virtual - var->xres;
|
|
if (var->yres + var->yoffset > var->yres_virtual)
|
|
var->yoffset = var->yres_virtual - var->yres;
|
|
|
|
DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
|
|
var->xres, var->yres,
|
|
var->xres_virtual, var->yres_virtual);
|
|
|
|
if (display && display->driver->get_dimensions) {
|
|
u32 w, h;
|
|
display->driver->get_dimensions(display, &w, &h);
|
|
var->width = DIV_ROUND_CLOSEST(w, 1000);
|
|
var->height = DIV_ROUND_CLOSEST(h, 1000);
|
|
} else {
|
|
var->height = -1;
|
|
var->width = -1;
|
|
}
|
|
|
|
var->grayscale = 0;
|
|
|
|
if (display && display->driver->get_timings) {
|
|
struct omap_video_timings timings;
|
|
display->driver->get_timings(display, &timings);
|
|
|
|
/* pixclock in ps, the rest in pixclock */
|
|
var->pixclock = timings.pixel_clock != 0 ?
|
|
KHZ2PICOS(timings.pixel_clock) :
|
|
0;
|
|
var->left_margin = timings.hbp;
|
|
var->right_margin = timings.hfp;
|
|
var->upper_margin = timings.vbp;
|
|
var->lower_margin = timings.vfp;
|
|
var->hsync_len = timings.hsw;
|
|
var->vsync_len = timings.vsw;
|
|
} else {
|
|
var->pixclock = 0;
|
|
var->left_margin = 0;
|
|
var->right_margin = 0;
|
|
var->upper_margin = 0;
|
|
var->lower_margin = 0;
|
|
var->hsync_len = 0;
|
|
var->vsync_len = 0;
|
|
}
|
|
|
|
/* TODO: get these from panel->config */
|
|
var->vmode = FB_VMODE_NONINTERLACED;
|
|
var->sync = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ---------------------------------------------------------------------------
|
|
* fbdev framework callbacks
|
|
* ---------------------------------------------------------------------------
|
|
*/
|
|
static int omapfb_open(struct fb_info *fbi, int user)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_release(struct fb_info *fbi, int user)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static unsigned calc_rotation_offset_dma(const struct fb_var_screeninfo *var,
|
|
const struct fb_fix_screeninfo *fix, int rotation)
|
|
{
|
|
unsigned offset;
|
|
|
|
offset = var->yoffset * fix->line_length +
|
|
var->xoffset * (var->bits_per_pixel >> 3);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static unsigned calc_rotation_offset_vrfb(const struct fb_var_screeninfo *var,
|
|
const struct fb_fix_screeninfo *fix, int rotation)
|
|
{
|
|
unsigned offset;
|
|
|
|
if (rotation == FB_ROTATE_UD)
|
|
offset = (var->yres_virtual - var->yres) *
|
|
fix->line_length;
|
|
else if (rotation == FB_ROTATE_CW)
|
|
offset = (var->yres_virtual - var->yres) *
|
|
(var->bits_per_pixel >> 3);
|
|
else
|
|
offset = 0;
|
|
|
|
if (rotation == FB_ROTATE_UR)
|
|
offset += var->yoffset * fix->line_length +
|
|
var->xoffset * (var->bits_per_pixel >> 3);
|
|
else if (rotation == FB_ROTATE_UD)
|
|
offset -= var->yoffset * fix->line_length +
|
|
var->xoffset * (var->bits_per_pixel >> 3);
|
|
else if (rotation == FB_ROTATE_CW)
|
|
offset -= var->xoffset * fix->line_length +
|
|
var->yoffset * (var->bits_per_pixel >> 3);
|
|
else if (rotation == FB_ROTATE_CCW)
|
|
offset += var->xoffset * fix->line_length +
|
|
var->yoffset * (var->bits_per_pixel >> 3);
|
|
|
|
return offset;
|
|
}
|
|
|
|
static void omapfb_calc_addr(const struct omapfb_info *ofbi,
|
|
const struct fb_var_screeninfo *var,
|
|
const struct fb_fix_screeninfo *fix,
|
|
int rotation, u32 *paddr, void __iomem **vaddr)
|
|
{
|
|
u32 data_start_p;
|
|
void __iomem *data_start_v;
|
|
int offset;
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
data_start_p = omapfb_get_region_rot_paddr(ofbi, rotation);
|
|
data_start_v = NULL;
|
|
} else {
|
|
data_start_p = omapfb_get_region_paddr(ofbi);
|
|
data_start_v = omapfb_get_region_vaddr(ofbi);
|
|
}
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
|
|
offset = calc_rotation_offset_vrfb(var, fix, rotation);
|
|
else
|
|
offset = calc_rotation_offset_dma(var, fix, rotation);
|
|
|
|
data_start_p += offset;
|
|
data_start_v += offset;
|
|
|
|
if (offset)
|
|
DBG("offset %d, %d = %d\n",
|
|
var->xoffset, var->yoffset, offset);
|
|
|
|
DBG("paddr %x, vaddr %p\n", data_start_p, data_start_v);
|
|
|
|
*paddr = data_start_p;
|
|
*vaddr = data_start_v;
|
|
}
|
|
|
|
/* setup overlay according to the fb */
|
|
int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
|
|
u16 posx, u16 posy, u16 outw, u16 outh)
|
|
{
|
|
int r = 0;
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
struct fb_fix_screeninfo *fix = &fbi->fix;
|
|
enum omap_color_mode mode = 0;
|
|
u32 data_start_p = 0;
|
|
void __iomem *data_start_v = NULL;
|
|
struct omap_overlay_info info;
|
|
int xres, yres;
|
|
int screen_width;
|
|
int mirror;
|
|
int rotation = var->rotate;
|
|
int i;
|
|
|
|
WARN_ON(!atomic_read(&ofbi->region->lock_count));
|
|
|
|
for (i = 0; i < ofbi->num_overlays; i++) {
|
|
if (ovl != ofbi->overlays[i])
|
|
continue;
|
|
|
|
rotation = (rotation + ofbi->rotation[i]) % 4;
|
|
break;
|
|
}
|
|
|
|
DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
|
|
posx, posy, outw, outh);
|
|
|
|
if (rotation == FB_ROTATE_CW || rotation == FB_ROTATE_CCW) {
|
|
xres = var->yres;
|
|
yres = var->xres;
|
|
} else {
|
|
xres = var->xres;
|
|
yres = var->yres;
|
|
}
|
|
|
|
if (ofbi->region->size)
|
|
omapfb_calc_addr(ofbi, var, fix, rotation,
|
|
&data_start_p, &data_start_v);
|
|
|
|
r = fb_mode_to_dss_mode(var, &mode);
|
|
if (r) {
|
|
DBG("fb_mode_to_dss_mode failed");
|
|
goto err;
|
|
}
|
|
|
|
switch (var->nonstd) {
|
|
case OMAPFB_COLOR_YUV422:
|
|
case OMAPFB_COLOR_YUY422:
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
screen_width = fix->line_length
|
|
/ (var->bits_per_pixel >> 2);
|
|
break;
|
|
}
|
|
default:
|
|
screen_width = fix->line_length / (var->bits_per_pixel >> 3);
|
|
break;
|
|
}
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
|
|
mirror = 0;
|
|
else
|
|
mirror = ofbi->mirror;
|
|
|
|
info.paddr = data_start_p;
|
|
info.vaddr = data_start_v;
|
|
info.screen_width = screen_width;
|
|
info.width = xres;
|
|
info.height = yres;
|
|
info.color_mode = mode;
|
|
info.rotation_type = ofbi->rotation_type;
|
|
info.rotation = rotation;
|
|
info.mirror = mirror;
|
|
|
|
info.pos_x = posx;
|
|
info.pos_y = posy;
|
|
info.out_width = outw;
|
|
info.out_height = outh;
|
|
|
|
r = ovl->set_overlay_info(ovl, &info);
|
|
if (r) {
|
|
DBG("ovl->setup_overlay_info failed\n");
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err:
|
|
DBG("setup_overlay failed\n");
|
|
return r;
|
|
}
|
|
|
|
/* apply var to the overlay */
|
|
int omapfb_apply_changes(struct fb_info *fbi, int init)
|
|
{
|
|
int r = 0;
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
struct omap_overlay *ovl;
|
|
u16 posx, posy;
|
|
u16 outw, outh;
|
|
int i;
|
|
|
|
#ifdef DEBUG
|
|
if (omapfb_test_pattern)
|
|
fill_fb(fbi);
|
|
#endif
|
|
|
|
WARN_ON(!atomic_read(&ofbi->region->lock_count));
|
|
|
|
for (i = 0; i < ofbi->num_overlays; i++) {
|
|
ovl = ofbi->overlays[i];
|
|
|
|
DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
|
|
|
|
if (ofbi->region->size == 0) {
|
|
/* the fb is not available. disable the overlay */
|
|
omapfb_overlay_enable(ovl, 0);
|
|
if (!init && ovl->manager)
|
|
ovl->manager->apply(ovl->manager);
|
|
continue;
|
|
}
|
|
|
|
if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
|
|
int rotation = (var->rotate + ofbi->rotation[i]) % 4;
|
|
if (rotation == FB_ROTATE_CW ||
|
|
rotation == FB_ROTATE_CCW) {
|
|
outw = var->yres;
|
|
outh = var->xres;
|
|
} else {
|
|
outw = var->xres;
|
|
outh = var->yres;
|
|
}
|
|
} else {
|
|
outw = ovl->info.out_width;
|
|
outh = ovl->info.out_height;
|
|
}
|
|
|
|
if (init) {
|
|
posx = 0;
|
|
posy = 0;
|
|
} else {
|
|
posx = ovl->info.pos_x;
|
|
posy = ovl->info.pos_y;
|
|
}
|
|
|
|
r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
|
|
if (r)
|
|
goto err;
|
|
|
|
if (!init && ovl->manager)
|
|
ovl->manager->apply(ovl->manager);
|
|
}
|
|
return 0;
|
|
err:
|
|
DBG("apply_changes failed\n");
|
|
return r;
|
|
}
|
|
|
|
/* checks var and eventually tweaks it to something supported,
|
|
* DO NOT MODIFY PAR */
|
|
static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
int r;
|
|
|
|
DBG("check_var(%d)\n", FB2OFB(fbi)->id);
|
|
|
|
omapfb_get_mem_region(ofbi->region);
|
|
|
|
r = check_fb_var(fbi, var);
|
|
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
return r;
|
|
}
|
|
|
|
/* set the video mode according to info->var */
|
|
static int omapfb_set_par(struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
int r;
|
|
|
|
DBG("set_par(%d)\n", FB2OFB(fbi)->id);
|
|
|
|
omapfb_get_mem_region(ofbi->region);
|
|
|
|
set_fb_fix(fbi);
|
|
|
|
r = setup_vrfb_rotation(fbi);
|
|
if (r)
|
|
goto out;
|
|
|
|
r = omapfb_apply_changes(fbi, 0);
|
|
|
|
out:
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int omapfb_pan_display(struct fb_var_screeninfo *var,
|
|
struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct fb_var_screeninfo new_var;
|
|
int r;
|
|
|
|
DBG("pan_display(%d)\n", FB2OFB(fbi)->id);
|
|
|
|
if (var->xoffset == fbi->var.xoffset &&
|
|
var->yoffset == fbi->var.yoffset)
|
|
return 0;
|
|
|
|
new_var = fbi->var;
|
|
new_var.xoffset = var->xoffset;
|
|
new_var.yoffset = var->yoffset;
|
|
|
|
fbi->var = new_var;
|
|
|
|
omapfb_get_mem_region(ofbi->region);
|
|
|
|
r = omapfb_apply_changes(fbi, 0);
|
|
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
return r;
|
|
}
|
|
|
|
static void mmap_user_open(struct vm_area_struct *vma)
|
|
{
|
|
struct omapfb2_mem_region *rg = vma->vm_private_data;
|
|
|
|
omapfb_get_mem_region(rg);
|
|
atomic_inc(&rg->map_count);
|
|
omapfb_put_mem_region(rg);
|
|
}
|
|
|
|
static void mmap_user_close(struct vm_area_struct *vma)
|
|
{
|
|
struct omapfb2_mem_region *rg = vma->vm_private_data;
|
|
|
|
omapfb_get_mem_region(rg);
|
|
atomic_dec(&rg->map_count);
|
|
omapfb_put_mem_region(rg);
|
|
}
|
|
|
|
static struct vm_operations_struct mmap_user_ops = {
|
|
.open = mmap_user_open,
|
|
.close = mmap_user_close,
|
|
};
|
|
|
|
static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct fb_fix_screeninfo *fix = &fbi->fix;
|
|
struct omapfb2_mem_region *rg;
|
|
unsigned long off;
|
|
unsigned long start;
|
|
u32 len;
|
|
int r = -EINVAL;
|
|
|
|
if (vma->vm_end - vma->vm_start == 0)
|
|
return 0;
|
|
if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
|
|
return -EINVAL;
|
|
off = vma->vm_pgoff << PAGE_SHIFT;
|
|
|
|
rg = omapfb_get_mem_region(ofbi->region);
|
|
|
|
start = omapfb_get_region_paddr(ofbi);
|
|
len = fix->smem_len;
|
|
if (off >= len)
|
|
goto error;
|
|
if ((vma->vm_end - vma->vm_start + off) > len)
|
|
goto error;
|
|
|
|
off += start;
|
|
|
|
DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
|
|
|
|
vma->vm_pgoff = off >> PAGE_SHIFT;
|
|
vma->vm_flags |= VM_IO | VM_RESERVED;
|
|
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
|
|
vma->vm_ops = &mmap_user_ops;
|
|
vma->vm_private_data = rg;
|
|
if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
|
|
vma->vm_end - vma->vm_start,
|
|
vma->vm_page_prot)) {
|
|
r = -EAGAIN;
|
|
goto error;
|
|
}
|
|
|
|
/* vm_ops.open won't be called for mmap itself. */
|
|
atomic_inc(&rg->map_count);
|
|
|
|
omapfb_put_mem_region(rg);
|
|
|
|
return 0;
|
|
|
|
error:
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
return r;
|
|
}
|
|
|
|
/* Store a single color palette entry into a pseudo palette or the hardware
|
|
* palette if one is available. For now we support only 16bpp and thus store
|
|
* the entry only to the pseudo palette.
|
|
*/
|
|
static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
|
|
u_int blue, u_int transp, int update_hw_pal)
|
|
{
|
|
/*struct omapfb_info *ofbi = FB2OFB(fbi);*/
|
|
/*struct omapfb2_device *fbdev = ofbi->fbdev;*/
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
int r = 0;
|
|
|
|
enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
|
|
|
|
/*switch (plane->color_mode) {*/
|
|
switch (mode) {
|
|
case OMAPFB_COLOR_YUV422:
|
|
case OMAPFB_COLOR_YUV420:
|
|
case OMAPFB_COLOR_YUY422:
|
|
r = -EINVAL;
|
|
break;
|
|
case OMAPFB_COLOR_CLUT_8BPP:
|
|
case OMAPFB_COLOR_CLUT_4BPP:
|
|
case OMAPFB_COLOR_CLUT_2BPP:
|
|
case OMAPFB_COLOR_CLUT_1BPP:
|
|
/*
|
|
if (fbdev->ctrl->setcolreg)
|
|
r = fbdev->ctrl->setcolreg(regno, red, green, blue,
|
|
transp, update_hw_pal);
|
|
*/
|
|
/* Fallthrough */
|
|
r = -EINVAL;
|
|
break;
|
|
case OMAPFB_COLOR_RGB565:
|
|
case OMAPFB_COLOR_RGB444:
|
|
case OMAPFB_COLOR_RGB24P:
|
|
case OMAPFB_COLOR_RGB24U:
|
|
if (r != 0)
|
|
break;
|
|
|
|
if (regno < 16) {
|
|
u16 pal;
|
|
pal = ((red >> (16 - var->red.length)) <<
|
|
var->red.offset) |
|
|
((green >> (16 - var->green.length)) <<
|
|
var->green.offset) |
|
|
(blue >> (16 - var->blue.length));
|
|
((u32 *)(fbi->pseudo_palette))[regno] = pal;
|
|
}
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
return r;
|
|
}
|
|
|
|
static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
|
|
u_int transp, struct fb_info *info)
|
|
{
|
|
DBG("setcolreg\n");
|
|
|
|
return _setcolreg(info, regno, red, green, blue, transp, 1);
|
|
}
|
|
|
|
static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
|
|
{
|
|
int count, index, r;
|
|
u16 *red, *green, *blue, *transp;
|
|
u16 trans = 0xffff;
|
|
|
|
DBG("setcmap\n");
|
|
|
|
red = cmap->red;
|
|
green = cmap->green;
|
|
blue = cmap->blue;
|
|
transp = cmap->transp;
|
|
index = cmap->start;
|
|
|
|
for (count = 0; count < cmap->len; count++) {
|
|
if (transp)
|
|
trans = *transp++;
|
|
r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
|
|
count == cmap->len - 1);
|
|
if (r != 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_blank(int blank, struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_device *fbdev = ofbi->fbdev;
|
|
struct omap_dss_device *display = fb2display(fbi);
|
|
struct omapfb_display_data *d;
|
|
int r = 0;
|
|
|
|
if (!display)
|
|
return -EINVAL;
|
|
|
|
omapfb_lock(fbdev);
|
|
|
|
d = get_display_data(fbdev, display);
|
|
|
|
switch (blank) {
|
|
case FB_BLANK_UNBLANK:
|
|
if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
|
|
goto exit;
|
|
|
|
if (display->driver->resume)
|
|
r = display->driver->resume(display);
|
|
|
|
if ((display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) &&
|
|
d->update_mode == OMAPFB_AUTO_UPDATE &&
|
|
!d->auto_update_work_enabled)
|
|
omapfb_start_auto_update(fbdev, display);
|
|
|
|
break;
|
|
|
|
case FB_BLANK_NORMAL:
|
|
/* FB_BLANK_NORMAL could be implemented.
|
|
* Needs DSS additions. */
|
|
case FB_BLANK_VSYNC_SUSPEND:
|
|
case FB_BLANK_HSYNC_SUSPEND:
|
|
case FB_BLANK_POWERDOWN:
|
|
if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
|
|
goto exit;
|
|
|
|
if (d->auto_update_work_enabled)
|
|
omapfb_stop_auto_update(fbdev, display);
|
|
|
|
if (display->driver->suspend)
|
|
r = display->driver->suspend(display);
|
|
|
|
break;
|
|
|
|
default:
|
|
r = -EINVAL;
|
|
}
|
|
|
|
exit:
|
|
omapfb_unlock(fbdev);
|
|
|
|
return r;
|
|
}
|
|
|
|
#if 0
|
|
/* XXX fb_read and fb_write are needed for VRFB */
|
|
ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
|
|
/* XXX needed for VRFB */
|
|
return count;
|
|
}
|
|
#endif
|
|
|
|
static struct fb_ops omapfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_open = omapfb_open,
|
|
.fb_release = omapfb_release,
|
|
.fb_fillrect = cfb_fillrect,
|
|
.fb_copyarea = cfb_copyarea,
|
|
.fb_imageblit = cfb_imageblit,
|
|
.fb_blank = omapfb_blank,
|
|
.fb_ioctl = omapfb_ioctl,
|
|
.fb_check_var = omapfb_check_var,
|
|
.fb_set_par = omapfb_set_par,
|
|
.fb_pan_display = omapfb_pan_display,
|
|
.fb_mmap = omapfb_mmap,
|
|
.fb_setcolreg = omapfb_setcolreg,
|
|
.fb_setcmap = omapfb_setcmap,
|
|
/*.fb_write = omapfb_write,*/
|
|
};
|
|
|
|
static void omapfb_free_fbmem(struct fb_info *fbi)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_device *fbdev = ofbi->fbdev;
|
|
struct omapfb2_mem_region *rg;
|
|
|
|
rg = ofbi->region;
|
|
|
|
WARN_ON(atomic_read(&rg->map_count));
|
|
|
|
if (rg->paddr)
|
|
if (omap_vram_free(rg->paddr, rg->size))
|
|
dev_err(fbdev->dev, "VRAM FREE failed\n");
|
|
|
|
if (rg->vaddr)
|
|
iounmap(rg->vaddr);
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
/* unmap the 0 angle rotation */
|
|
if (rg->vrfb.vaddr[0]) {
|
|
iounmap(rg->vrfb.vaddr[0]);
|
|
omap_vrfb_release_ctx(&rg->vrfb);
|
|
rg->vrfb.vaddr[0] = NULL;
|
|
}
|
|
}
|
|
|
|
rg->vaddr = NULL;
|
|
rg->paddr = 0;
|
|
rg->alloc = 0;
|
|
rg->size = 0;
|
|
}
|
|
|
|
static void clear_fb_info(struct fb_info *fbi)
|
|
{
|
|
memset(&fbi->var, 0, sizeof(fbi->var));
|
|
memset(&fbi->fix, 0, sizeof(fbi->fix));
|
|
strlcpy(fbi->fix.id, MODULE_NAME, sizeof(fbi->fix.id));
|
|
}
|
|
|
|
static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
|
|
{
|
|
int i;
|
|
|
|
DBG("free all fbmem\n");
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
struct fb_info *fbi = fbdev->fbs[i];
|
|
omapfb_free_fbmem(fbi);
|
|
clear_fb_info(fbi);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
|
|
unsigned long paddr)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_device *fbdev = ofbi->fbdev;
|
|
struct omapfb2_mem_region *rg;
|
|
void __iomem *vaddr;
|
|
int r;
|
|
|
|
rg = ofbi->region;
|
|
|
|
rg->paddr = 0;
|
|
rg->vaddr = NULL;
|
|
memset(&rg->vrfb, 0, sizeof rg->vrfb);
|
|
rg->size = 0;
|
|
rg->type = 0;
|
|
rg->alloc = false;
|
|
rg->map = false;
|
|
|
|
size = PAGE_ALIGN(size);
|
|
|
|
if (!paddr) {
|
|
DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
|
|
r = omap_vram_alloc(OMAP_VRAM_MEMTYPE_SDRAM, size, &paddr);
|
|
} else {
|
|
DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
|
|
ofbi->id);
|
|
r = omap_vram_reserve(paddr, size);
|
|
}
|
|
|
|
if (r) {
|
|
dev_err(fbdev->dev, "failed to allocate framebuffer\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
|
|
vaddr = ioremap_wc(paddr, size);
|
|
|
|
if (!vaddr) {
|
|
dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
|
|
omap_vram_free(paddr, size);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
|
|
} else {
|
|
r = omap_vrfb_request_ctx(&rg->vrfb);
|
|
if (r) {
|
|
dev_err(fbdev->dev, "vrfb create ctx failed\n");
|
|
return r;
|
|
}
|
|
|
|
vaddr = NULL;
|
|
}
|
|
|
|
rg->paddr = paddr;
|
|
rg->vaddr = vaddr;
|
|
rg->size = size;
|
|
rg->alloc = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* allocate fbmem using display resolution as reference */
|
|
static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
|
|
unsigned long paddr)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_device *fbdev = ofbi->fbdev;
|
|
struct omap_dss_device *display;
|
|
int bytespp;
|
|
|
|
display = fb2display(fbi);
|
|
|
|
if (!display)
|
|
return 0;
|
|
|
|
switch (omapfb_get_recommended_bpp(fbdev, display)) {
|
|
case 16:
|
|
bytespp = 2;
|
|
break;
|
|
case 24:
|
|
bytespp = 4;
|
|
break;
|
|
default:
|
|
bytespp = 4;
|
|
break;
|
|
}
|
|
|
|
if (!size) {
|
|
u16 w, h;
|
|
|
|
display->driver->get_resolution(display, &w, &h);
|
|
|
|
if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
|
|
size = max(omap_vrfb_min_phys_size(w, h, bytespp),
|
|
omap_vrfb_min_phys_size(h, w, bytespp));
|
|
|
|
DBG("adjusting fb mem size for VRFB, %u -> %lu\n",
|
|
w * h * bytespp, size);
|
|
} else {
|
|
size = w * h * bytespp;
|
|
}
|
|
}
|
|
|
|
if (!size)
|
|
return 0;
|
|
|
|
return omapfb_alloc_fbmem(fbi, size, paddr);
|
|
}
|
|
|
|
static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format fmt)
|
|
{
|
|
enum omap_color_mode mode;
|
|
|
|
switch (fmt) {
|
|
case OMAPFB_COLOR_RGB565:
|
|
mode = OMAP_DSS_COLOR_RGB16;
|
|
break;
|
|
case OMAPFB_COLOR_YUV422:
|
|
mode = OMAP_DSS_COLOR_YUV2;
|
|
break;
|
|
case OMAPFB_COLOR_CLUT_8BPP:
|
|
mode = OMAP_DSS_COLOR_CLUT8;
|
|
break;
|
|
case OMAPFB_COLOR_CLUT_4BPP:
|
|
mode = OMAP_DSS_COLOR_CLUT4;
|
|
break;
|
|
case OMAPFB_COLOR_CLUT_2BPP:
|
|
mode = OMAP_DSS_COLOR_CLUT2;
|
|
break;
|
|
case OMAPFB_COLOR_CLUT_1BPP:
|
|
mode = OMAP_DSS_COLOR_CLUT1;
|
|
break;
|
|
case OMAPFB_COLOR_RGB444:
|
|
mode = OMAP_DSS_COLOR_RGB12U;
|
|
break;
|
|
case OMAPFB_COLOR_YUY422:
|
|
mode = OMAP_DSS_COLOR_UYVY;
|
|
break;
|
|
case OMAPFB_COLOR_ARGB16:
|
|
mode = OMAP_DSS_COLOR_ARGB16;
|
|
break;
|
|
case OMAPFB_COLOR_RGB24U:
|
|
mode = OMAP_DSS_COLOR_RGB24U;
|
|
break;
|
|
case OMAPFB_COLOR_RGB24P:
|
|
mode = OMAP_DSS_COLOR_RGB24P;
|
|
break;
|
|
case OMAPFB_COLOR_ARGB32:
|
|
mode = OMAP_DSS_COLOR_ARGB32;
|
|
break;
|
|
case OMAPFB_COLOR_RGBA32:
|
|
mode = OMAP_DSS_COLOR_RGBA32;
|
|
break;
|
|
case OMAPFB_COLOR_RGBX32:
|
|
mode = OMAP_DSS_COLOR_RGBX32;
|
|
break;
|
|
default:
|
|
mode = -EINVAL;
|
|
}
|
|
|
|
return mode;
|
|
}
|
|
|
|
static int omapfb_parse_vram_param(const char *param, int max_entries,
|
|
unsigned long *sizes, unsigned long *paddrs)
|
|
{
|
|
int fbnum;
|
|
unsigned long size;
|
|
unsigned long paddr = 0;
|
|
char *p, *start;
|
|
|
|
start = (char *)param;
|
|
|
|
while (1) {
|
|
p = start;
|
|
|
|
fbnum = simple_strtoul(p, &p, 10);
|
|
|
|
if (p == param)
|
|
return -EINVAL;
|
|
|
|
if (*p != ':')
|
|
return -EINVAL;
|
|
|
|
if (fbnum >= max_entries)
|
|
return -EINVAL;
|
|
|
|
size = memparse(p + 1, &p);
|
|
|
|
if (!size)
|
|
return -EINVAL;
|
|
|
|
paddr = 0;
|
|
|
|
if (*p == '@') {
|
|
paddr = simple_strtoul(p + 1, &p, 16);
|
|
|
|
if (!paddr)
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
paddrs[fbnum] = paddr;
|
|
sizes[fbnum] = size;
|
|
|
|
if (*p == 0)
|
|
break;
|
|
|
|
if (*p != ',')
|
|
return -EINVAL;
|
|
|
|
++p;
|
|
|
|
start = p;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
|
|
{
|
|
int i, r;
|
|
unsigned long vram_sizes[10];
|
|
unsigned long vram_paddrs[10];
|
|
|
|
memset(&vram_sizes, 0, sizeof(vram_sizes));
|
|
memset(&vram_paddrs, 0, sizeof(vram_paddrs));
|
|
|
|
if (def_vram && omapfb_parse_vram_param(def_vram, 10,
|
|
vram_sizes, vram_paddrs)) {
|
|
dev_err(fbdev->dev, "failed to parse vram parameter\n");
|
|
|
|
memset(&vram_sizes, 0, sizeof(vram_sizes));
|
|
memset(&vram_paddrs, 0, sizeof(vram_paddrs));
|
|
}
|
|
|
|
if (fbdev->dev->platform_data) {
|
|
struct omapfb_platform_data *opd;
|
|
opd = fbdev->dev->platform_data;
|
|
for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
|
|
if (!vram_sizes[i]) {
|
|
unsigned long size;
|
|
unsigned long paddr;
|
|
|
|
size = opd->mem_desc.region[i].size;
|
|
paddr = opd->mem_desc.region[i].paddr;
|
|
|
|
vram_sizes[i] = size;
|
|
vram_paddrs[i] = paddr;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
/* allocate memory automatically only for fb0, or if
|
|
* excplicitly defined with vram or plat data option */
|
|
if (i == 0 || vram_sizes[i] != 0) {
|
|
r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
|
|
vram_sizes[i], vram_paddrs[i]);
|
|
|
|
if (r)
|
|
return r;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
|
|
struct omapfb2_mem_region *rg;
|
|
rg = ofbi->region;
|
|
|
|
DBG("region%d phys %08x virt %p size=%lu\n",
|
|
i,
|
|
rg->paddr,
|
|
rg->vaddr,
|
|
rg->size);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
|
|
{
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
struct omapfb2_device *fbdev = ofbi->fbdev;
|
|
struct omap_dss_device *display = fb2display(fbi);
|
|
struct omapfb2_mem_region *rg = ofbi->region;
|
|
unsigned long old_size = rg->size;
|
|
unsigned long old_paddr = rg->paddr;
|
|
int old_type = rg->type;
|
|
int r;
|
|
|
|
if (type > OMAPFB_MEMTYPE_MAX)
|
|
return -EINVAL;
|
|
|
|
size = PAGE_ALIGN(size);
|
|
|
|
if (old_size == size && old_type == type)
|
|
return 0;
|
|
|
|
if (display && display->driver->sync)
|
|
display->driver->sync(display);
|
|
|
|
omapfb_free_fbmem(fbi);
|
|
|
|
if (size == 0) {
|
|
clear_fb_info(fbi);
|
|
return 0;
|
|
}
|
|
|
|
r = omapfb_alloc_fbmem(fbi, size, 0);
|
|
|
|
if (r) {
|
|
if (old_size)
|
|
omapfb_alloc_fbmem(fbi, old_size, old_paddr);
|
|
|
|
if (rg->size == 0)
|
|
clear_fb_info(fbi);
|
|
|
|
return r;
|
|
}
|
|
|
|
if (old_size == size)
|
|
return 0;
|
|
|
|
if (old_size == 0) {
|
|
DBG("initializing fb %d\n", ofbi->id);
|
|
r = omapfb_fb_init(fbdev, fbi);
|
|
if (r) {
|
|
DBG("omapfb_fb_init failed\n");
|
|
goto err;
|
|
}
|
|
r = omapfb_apply_changes(fbi, 1);
|
|
if (r) {
|
|
DBG("omapfb_apply_changes failed\n");
|
|
goto err;
|
|
}
|
|
} else {
|
|
struct fb_var_screeninfo new_var;
|
|
memcpy(&new_var, &fbi->var, sizeof(new_var));
|
|
r = check_fb_var(fbi, &new_var);
|
|
if (r)
|
|
goto err;
|
|
memcpy(&fbi->var, &new_var, sizeof(fbi->var));
|
|
set_fb_fix(fbi);
|
|
r = setup_vrfb_rotation(fbi);
|
|
if (r)
|
|
goto err;
|
|
}
|
|
|
|
return 0;
|
|
err:
|
|
omapfb_free_fbmem(fbi);
|
|
clear_fb_info(fbi);
|
|
return r;
|
|
}
|
|
|
|
static void omapfb_auto_update_work(struct work_struct *work)
|
|
{
|
|
struct omap_dss_device *dssdev;
|
|
struct omap_dss_driver *dssdrv;
|
|
struct omapfb_display_data *d;
|
|
u16 w, h;
|
|
unsigned int freq;
|
|
struct omapfb2_device *fbdev;
|
|
|
|
d = container_of(work, struct omapfb_display_data,
|
|
auto_update_work.work);
|
|
|
|
dssdev = d->dssdev;
|
|
dssdrv = dssdev->driver;
|
|
fbdev = d->fbdev;
|
|
|
|
if (!dssdrv || !dssdrv->update)
|
|
return;
|
|
|
|
if (dssdrv->sync)
|
|
dssdrv->sync(dssdev);
|
|
|
|
dssdrv->get_resolution(dssdev, &w, &h);
|
|
dssdrv->update(dssdev, 0, 0, w, h);
|
|
|
|
freq = auto_update_freq;
|
|
if (freq == 0)
|
|
freq = 20;
|
|
queue_delayed_work(fbdev->auto_update_wq,
|
|
&d->auto_update_work, HZ / freq);
|
|
}
|
|
|
|
void omapfb_start_auto_update(struct omapfb2_device *fbdev,
|
|
struct omap_dss_device *display)
|
|
{
|
|
struct omapfb_display_data *d;
|
|
|
|
if (fbdev->auto_update_wq == NULL) {
|
|
struct workqueue_struct *wq;
|
|
|
|
wq = create_singlethread_workqueue("omapfb_auto_update");
|
|
|
|
if (wq == NULL) {
|
|
dev_err(fbdev->dev, "Failed to create workqueue for "
|
|
"auto-update\n");
|
|
return;
|
|
}
|
|
|
|
fbdev->auto_update_wq = wq;
|
|
}
|
|
|
|
d = get_display_data(fbdev, display);
|
|
|
|
INIT_DELAYED_WORK(&d->auto_update_work, omapfb_auto_update_work);
|
|
|
|
d->auto_update_work_enabled = true;
|
|
|
|
omapfb_auto_update_work(&d->auto_update_work.work);
|
|
}
|
|
|
|
void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
|
|
struct omap_dss_device *display)
|
|
{
|
|
struct omapfb_display_data *d;
|
|
|
|
d = get_display_data(fbdev, display);
|
|
|
|
cancel_delayed_work_sync(&d->auto_update_work);
|
|
|
|
d->auto_update_work_enabled = false;
|
|
}
|
|
|
|
/* initialize fb_info, var, fix to something sane based on the display */
|
|
static int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
|
|
{
|
|
struct fb_var_screeninfo *var = &fbi->var;
|
|
struct omap_dss_device *display = fb2display(fbi);
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
int r = 0;
|
|
|
|
fbi->fbops = &omapfb_ops;
|
|
fbi->flags = FBINFO_FLAG_DEFAULT;
|
|
fbi->pseudo_palette = fbdev->pseudo_palette;
|
|
|
|
if (ofbi->region->size == 0) {
|
|
clear_fb_info(fbi);
|
|
return 0;
|
|
}
|
|
|
|
var->nonstd = 0;
|
|
var->bits_per_pixel = 0;
|
|
|
|
var->rotate = def_rotate;
|
|
|
|
/*
|
|
* Check if there is a default color format set in the board file,
|
|
* and use this format instead the default deducted from the
|
|
* display bpp.
|
|
*/
|
|
if (fbdev->dev->platform_data) {
|
|
struct omapfb_platform_data *opd;
|
|
int id = ofbi->id;
|
|
|
|
opd = fbdev->dev->platform_data;
|
|
if (opd->mem_desc.region[id].format_used) {
|
|
enum omap_color_mode mode;
|
|
enum omapfb_color_format format;
|
|
|
|
format = opd->mem_desc.region[id].format;
|
|
mode = fb_format_to_dss_mode(format);
|
|
if (mode < 0) {
|
|
r = mode;
|
|
goto err;
|
|
}
|
|
r = dss_mode_to_fb_mode(mode, var);
|
|
if (r < 0)
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
if (display) {
|
|
u16 w, h;
|
|
int rotation = (var->rotate + ofbi->rotation[0]) % 4;
|
|
|
|
display->driver->get_resolution(display, &w, &h);
|
|
|
|
if (rotation == FB_ROTATE_CW ||
|
|
rotation == FB_ROTATE_CCW) {
|
|
var->xres = h;
|
|
var->yres = w;
|
|
} else {
|
|
var->xres = w;
|
|
var->yres = h;
|
|
}
|
|
|
|
var->xres_virtual = var->xres;
|
|
var->yres_virtual = var->yres;
|
|
|
|
if (!var->bits_per_pixel) {
|
|
switch (omapfb_get_recommended_bpp(fbdev, display)) {
|
|
case 16:
|
|
var->bits_per_pixel = 16;
|
|
break;
|
|
case 24:
|
|
var->bits_per_pixel = 32;
|
|
break;
|
|
default:
|
|
dev_err(fbdev->dev, "illegal display "
|
|
"bpp\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
} else {
|
|
/* if there's no display, let's just guess some basic values */
|
|
var->xres = 320;
|
|
var->yres = 240;
|
|
var->xres_virtual = var->xres;
|
|
var->yres_virtual = var->yres;
|
|
if (!var->bits_per_pixel)
|
|
var->bits_per_pixel = 16;
|
|
}
|
|
|
|
r = check_fb_var(fbi, var);
|
|
if (r)
|
|
goto err;
|
|
|
|
set_fb_fix(fbi);
|
|
r = setup_vrfb_rotation(fbi);
|
|
if (r)
|
|
goto err;
|
|
|
|
r = fb_alloc_cmap(&fbi->cmap, 256, 0);
|
|
if (r)
|
|
dev_err(fbdev->dev, "unable to allocate color map memory\n");
|
|
|
|
err:
|
|
return r;
|
|
}
|
|
|
|
static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
|
|
{
|
|
fb_dealloc_cmap(&fbi->cmap);
|
|
}
|
|
|
|
|
|
static void omapfb_free_resources(struct omapfb2_device *fbdev)
|
|
{
|
|
int i;
|
|
|
|
DBG("free_resources\n");
|
|
|
|
if (fbdev == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++)
|
|
unregister_framebuffer(fbdev->fbs[i]);
|
|
|
|
/* free the reserved fbmem */
|
|
omapfb_free_all_fbmem(fbdev);
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
fbinfo_cleanup(fbdev, fbdev->fbs[i]);
|
|
framebuffer_release(fbdev->fbs[i]);
|
|
}
|
|
|
|
for (i = 0; i < fbdev->num_displays; i++) {
|
|
struct omap_dss_device *dssdev = fbdev->displays[i].dssdev;
|
|
|
|
if (fbdev->displays[i].auto_update_work_enabled)
|
|
omapfb_stop_auto_update(fbdev, dssdev);
|
|
|
|
if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)
|
|
dssdev->driver->disable(dssdev);
|
|
|
|
omap_dss_put_device(dssdev);
|
|
}
|
|
|
|
if (fbdev->auto_update_wq != NULL) {
|
|
flush_workqueue(fbdev->auto_update_wq);
|
|
destroy_workqueue(fbdev->auto_update_wq);
|
|
fbdev->auto_update_wq = NULL;
|
|
}
|
|
|
|
dev_set_drvdata(fbdev->dev, NULL);
|
|
kfree(fbdev);
|
|
}
|
|
|
|
static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
|
|
{
|
|
int r, i;
|
|
|
|
fbdev->num_fbs = 0;
|
|
|
|
DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
|
|
|
|
/* allocate fb_infos */
|
|
for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
|
|
struct fb_info *fbi;
|
|
struct omapfb_info *ofbi;
|
|
|
|
fbi = framebuffer_alloc(sizeof(struct omapfb_info),
|
|
fbdev->dev);
|
|
|
|
if (fbi == NULL) {
|
|
dev_err(fbdev->dev,
|
|
"unable to allocate memory for plane info\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
clear_fb_info(fbi);
|
|
|
|
fbdev->fbs[i] = fbi;
|
|
|
|
ofbi = FB2OFB(fbi);
|
|
ofbi->fbdev = fbdev;
|
|
ofbi->id = i;
|
|
|
|
ofbi->region = &fbdev->regions[i];
|
|
ofbi->region->id = i;
|
|
init_rwsem(&ofbi->region->lock);
|
|
|
|
/* assign these early, so that fb alloc can use them */
|
|
ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
|
|
OMAP_DSS_ROT_DMA;
|
|
ofbi->mirror = def_mirror;
|
|
|
|
fbdev->num_fbs++;
|
|
}
|
|
|
|
DBG("fb_infos allocated\n");
|
|
|
|
/* assign overlays for the fbs */
|
|
for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
|
|
struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
|
|
|
|
ofbi->overlays[0] = fbdev->overlays[i];
|
|
ofbi->num_overlays = 1;
|
|
}
|
|
|
|
/* allocate fb memories */
|
|
r = omapfb_allocate_all_fbs(fbdev);
|
|
if (r) {
|
|
dev_err(fbdev->dev, "failed to allocate fbmem\n");
|
|
return r;
|
|
}
|
|
|
|
DBG("fbmems allocated\n");
|
|
|
|
/* setup fb_infos */
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
struct fb_info *fbi = fbdev->fbs[i];
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
|
|
omapfb_get_mem_region(ofbi->region);
|
|
r = omapfb_fb_init(fbdev, fbi);
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
if (r) {
|
|
dev_err(fbdev->dev, "failed to setup fb_info\n");
|
|
return r;
|
|
}
|
|
}
|
|
|
|
DBG("fb_infos initialized\n");
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
r = register_framebuffer(fbdev->fbs[i]);
|
|
if (r != 0) {
|
|
dev_err(fbdev->dev,
|
|
"registering framebuffer %d failed\n", i);
|
|
return r;
|
|
}
|
|
}
|
|
|
|
DBG("framebuffers registered\n");
|
|
|
|
for (i = 0; i < fbdev->num_fbs; i++) {
|
|
struct fb_info *fbi = fbdev->fbs[i];
|
|
struct omapfb_info *ofbi = FB2OFB(fbi);
|
|
|
|
omapfb_get_mem_region(ofbi->region);
|
|
r = omapfb_apply_changes(fbi, 1);
|
|
omapfb_put_mem_region(ofbi->region);
|
|
|
|
if (r) {
|
|
dev_err(fbdev->dev, "failed to change mode\n");
|
|
return r;
|
|
}
|
|
}
|
|
|
|
/* Enable fb0 */
|
|
if (fbdev->num_fbs > 0) {
|
|
struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
|
|
|
|
if (ofbi->num_overlays > 0) {
|
|
struct omap_overlay *ovl = ofbi->overlays[0];
|
|
|
|
r = omapfb_overlay_enable(ovl, 1);
|
|
|
|
if (r) {
|
|
dev_err(fbdev->dev,
|
|
"failed to enable overlay\n");
|
|
return r;
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG("create_framebuffers done\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_mode_to_timings(const char *mode_str,
|
|
struct omap_video_timings *timings, u8 *bpp)
|
|
{
|
|
struct fb_info *fbi;
|
|
struct fb_var_screeninfo *var;
|
|
struct fb_ops *fbops;
|
|
int r;
|
|
|
|
#ifdef CONFIG_OMAP2_DSS_VENC
|
|
if (strcmp(mode_str, "pal") == 0) {
|
|
*timings = omap_dss_pal_timings;
|
|
*bpp = 24;
|
|
return 0;
|
|
} else if (strcmp(mode_str, "ntsc") == 0) {
|
|
*timings = omap_dss_ntsc_timings;
|
|
*bpp = 24;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* this is quite a hack, but I wanted to use the modedb and for
|
|
* that we need fb_info and var, so we create dummy ones */
|
|
|
|
*bpp = 0;
|
|
fbi = NULL;
|
|
var = NULL;
|
|
fbops = NULL;
|
|
|
|
fbi = kzalloc(sizeof(*fbi), GFP_KERNEL);
|
|
if (fbi == NULL) {
|
|
r = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
var = kzalloc(sizeof(*var), GFP_KERNEL);
|
|
if (var == NULL) {
|
|
r = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
fbops = kzalloc(sizeof(*fbops), GFP_KERNEL);
|
|
if (fbops == NULL) {
|
|
r = -ENOMEM;
|
|
goto err;
|
|
}
|
|
|
|
fbi->fbops = fbops;
|
|
|
|
r = fb_find_mode(var, fbi, mode_str, NULL, 0, NULL, 24);
|
|
if (r == 0) {
|
|
r = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
timings->pixel_clock = PICOS2KHZ(var->pixclock);
|
|
timings->hbp = var->left_margin;
|
|
timings->hfp = var->right_margin;
|
|
timings->vbp = var->upper_margin;
|
|
timings->vfp = var->lower_margin;
|
|
timings->hsw = var->hsync_len;
|
|
timings->vsw = var->vsync_len;
|
|
timings->x_res = var->xres;
|
|
timings->y_res = var->yres;
|
|
|
|
switch (var->bits_per_pixel) {
|
|
case 16:
|
|
*bpp = 16;
|
|
break;
|
|
case 24:
|
|
case 32:
|
|
default:
|
|
*bpp = 24;
|
|
break;
|
|
}
|
|
|
|
r = 0;
|
|
|
|
err:
|
|
kfree(fbi);
|
|
kfree(var);
|
|
kfree(fbops);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int omapfb_set_def_mode(struct omapfb2_device *fbdev,
|
|
struct omap_dss_device *display, char *mode_str)
|
|
{
|
|
int r;
|
|
u8 bpp;
|
|
struct omap_video_timings timings, temp_timings;
|
|
struct omapfb_display_data *d;
|
|
|
|
r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
|
|
if (r)
|
|
return r;
|
|
|
|
d = get_display_data(fbdev, display);
|
|
d->bpp_override = bpp;
|
|
|
|
if (display->driver->check_timings) {
|
|
r = display->driver->check_timings(display, &timings);
|
|
if (r)
|
|
return r;
|
|
} else {
|
|
/* If check_timings is not present compare xres and yres */
|
|
if (display->driver->get_timings) {
|
|
display->driver->get_timings(display, &temp_timings);
|
|
|
|
if (temp_timings.x_res != timings.x_res ||
|
|
temp_timings.y_res != timings.y_res)
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (display->driver->set_timings)
|
|
display->driver->set_timings(display, &timings);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_get_recommended_bpp(struct omapfb2_device *fbdev,
|
|
struct omap_dss_device *dssdev)
|
|
{
|
|
struct omapfb_display_data *d;
|
|
|
|
BUG_ON(dssdev->driver->get_recommended_bpp == NULL);
|
|
|
|
d = get_display_data(fbdev, dssdev);
|
|
|
|
if (d->bpp_override != 0)
|
|
return d->bpp_override;
|
|
|
|
return dssdev->driver->get_recommended_bpp(dssdev);
|
|
}
|
|
|
|
static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
|
|
{
|
|
char *str, *options, *this_opt;
|
|
int r = 0;
|
|
|
|
str = kstrdup(def_mode, GFP_KERNEL);
|
|
if (!str)
|
|
return -ENOMEM;
|
|
options = str;
|
|
|
|
while (!r && (this_opt = strsep(&options, ",")) != NULL) {
|
|
char *p, *display_str, *mode_str;
|
|
struct omap_dss_device *display;
|
|
int i;
|
|
|
|
p = strchr(this_opt, ':');
|
|
if (!p) {
|
|
r = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
*p = 0;
|
|
display_str = this_opt;
|
|
mode_str = p + 1;
|
|
|
|
display = NULL;
|
|
for (i = 0; i < fbdev->num_displays; ++i) {
|
|
if (strcmp(fbdev->displays[i].dssdev->name,
|
|
display_str) == 0) {
|
|
display = fbdev->displays[i].dssdev;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!display) {
|
|
r = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
r = omapfb_set_def_mode(fbdev, display, mode_str);
|
|
if (r)
|
|
break;
|
|
}
|
|
|
|
kfree(str);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int omapfb_init_display(struct omapfb2_device *fbdev,
|
|
struct omap_dss_device *dssdev)
|
|
{
|
|
struct omap_dss_driver *dssdrv = dssdev->driver;
|
|
struct omapfb_display_data *d;
|
|
int r;
|
|
|
|
r = dssdrv->enable(dssdev);
|
|
if (r) {
|
|
dev_warn(fbdev->dev, "Failed to enable display '%s'\n",
|
|
dssdev->name);
|
|
return r;
|
|
}
|
|
|
|
d = get_display_data(fbdev, dssdev);
|
|
|
|
d->fbdev = fbdev;
|
|
|
|
if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
|
|
u16 w, h;
|
|
|
|
if (auto_update) {
|
|
omapfb_start_auto_update(fbdev, dssdev);
|
|
d->update_mode = OMAPFB_AUTO_UPDATE;
|
|
} else {
|
|
d->update_mode = OMAPFB_MANUAL_UPDATE;
|
|
}
|
|
|
|
if (dssdrv->enable_te) {
|
|
r = dssdrv->enable_te(dssdev, 1);
|
|
if (r) {
|
|
dev_err(fbdev->dev, "Failed to set TE\n");
|
|
return r;
|
|
}
|
|
}
|
|
|
|
dssdrv->get_resolution(dssdev, &w, &h);
|
|
r = dssdrv->update(dssdev, 0, 0, w, h);
|
|
if (r) {
|
|
dev_err(fbdev->dev,
|
|
"Failed to update display\n");
|
|
return r;
|
|
}
|
|
} else {
|
|
d->update_mode = OMAPFB_AUTO_UPDATE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omapfb_probe(struct platform_device *pdev)
|
|
{
|
|
struct omapfb2_device *fbdev = NULL;
|
|
int r = 0;
|
|
int i;
|
|
struct omap_overlay *ovl;
|
|
struct omap_dss_device *def_display;
|
|
struct omap_dss_device *dssdev;
|
|
|
|
DBG("omapfb_probe\n");
|
|
|
|
if (pdev->num_resources != 0) {
|
|
dev_err(&pdev->dev, "probed for an unknown device\n");
|
|
r = -ENODEV;
|
|
goto err0;
|
|
}
|
|
|
|
fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
|
|
if (fbdev == NULL) {
|
|
r = -ENOMEM;
|
|
goto err0;
|
|
}
|
|
|
|
/* TODO : Replace cpu check with omap_has_vrfb once HAS_FEATURE
|
|
* available for OMAP2 and OMAP3
|
|
*/
|
|
if (def_vrfb && !cpu_is_omap24xx() && !cpu_is_omap34xx()) {
|
|
def_vrfb = 0;
|
|
dev_warn(&pdev->dev, "VRFB is not supported on this hardware, "
|
|
"ignoring the module parameter vrfb=y\n");
|
|
}
|
|
|
|
|
|
mutex_init(&fbdev->mtx);
|
|
|
|
fbdev->dev = &pdev->dev;
|
|
platform_set_drvdata(pdev, fbdev);
|
|
|
|
r = 0;
|
|
fbdev->num_displays = 0;
|
|
dssdev = NULL;
|
|
for_each_dss_dev(dssdev) {
|
|
struct omapfb_display_data *d;
|
|
|
|
omap_dss_get_device(dssdev);
|
|
|
|
if (!dssdev->driver) {
|
|
dev_err(&pdev->dev, "no driver for display\n");
|
|
r = -ENODEV;
|
|
}
|
|
|
|
d = &fbdev->displays[fbdev->num_displays++];
|
|
d->dssdev = dssdev;
|
|
if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
|
|
d->update_mode = OMAPFB_MANUAL_UPDATE;
|
|
else
|
|
d->update_mode = OMAPFB_AUTO_UPDATE;
|
|
}
|
|
|
|
if (r)
|
|
goto cleanup;
|
|
|
|
if (fbdev->num_displays == 0) {
|
|
dev_err(&pdev->dev, "no displays\n");
|
|
r = -EINVAL;
|
|
goto cleanup;
|
|
}
|
|
|
|
fbdev->num_overlays = omap_dss_get_num_overlays();
|
|
for (i = 0; i < fbdev->num_overlays; i++)
|
|
fbdev->overlays[i] = omap_dss_get_overlay(i);
|
|
|
|
fbdev->num_managers = omap_dss_get_num_overlay_managers();
|
|
for (i = 0; i < fbdev->num_managers; i++)
|
|
fbdev->managers[i] = omap_dss_get_overlay_manager(i);
|
|
|
|
if (def_mode && strlen(def_mode) > 0) {
|
|
if (omapfb_parse_def_modes(fbdev))
|
|
dev_warn(&pdev->dev, "cannot parse default modes\n");
|
|
}
|
|
|
|
r = omapfb_create_framebuffers(fbdev);
|
|
if (r)
|
|
goto cleanup;
|
|
|
|
for (i = 0; i < fbdev->num_managers; i++) {
|
|
struct omap_overlay_manager *mgr;
|
|
mgr = fbdev->managers[i];
|
|
r = mgr->apply(mgr);
|
|
if (r)
|
|
dev_warn(fbdev->dev, "failed to apply dispc config\n");
|
|
}
|
|
|
|
DBG("mgr->apply'ed\n");
|
|
|
|
/* gfx overlay should be the default one. find a display
|
|
* connected to that, and use it as default display */
|
|
ovl = omap_dss_get_overlay(0);
|
|
if (ovl->manager && ovl->manager->device) {
|
|
def_display = ovl->manager->device;
|
|
} else {
|
|
dev_warn(&pdev->dev, "cannot find default display\n");
|
|
def_display = NULL;
|
|
}
|
|
|
|
if (def_display) {
|
|
r = omapfb_init_display(fbdev, def_display);
|
|
if (r) {
|
|
dev_err(fbdev->dev,
|
|
"failed to initialize default "
|
|
"display\n");
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
DBG("create sysfs for fbs\n");
|
|
r = omapfb_create_sysfs(fbdev);
|
|
if (r) {
|
|
dev_err(fbdev->dev, "failed to create sysfs entries\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
return 0;
|
|
|
|
cleanup:
|
|
omapfb_free_resources(fbdev);
|
|
err0:
|
|
dev_err(&pdev->dev, "failed to setup omapfb\n");
|
|
return r;
|
|
}
|
|
|
|
static int omapfb_remove(struct platform_device *pdev)
|
|
{
|
|
struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
|
|
|
|
/* FIXME: wait till completion of pending events */
|
|
|
|
omapfb_remove_sysfs(fbdev);
|
|
|
|
omapfb_free_resources(fbdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver omapfb_driver = {
|
|
.probe = omapfb_probe,
|
|
.remove = omapfb_remove,
|
|
.driver = {
|
|
.name = "omapfb",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init omapfb_init(void)
|
|
{
|
|
DBG("omapfb_init\n");
|
|
|
|
if (platform_driver_register(&omapfb_driver)) {
|
|
printk(KERN_ERR "failed to register omapfb driver\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit omapfb_exit(void)
|
|
{
|
|
DBG("omapfb_exit\n");
|
|
platform_driver_unregister(&omapfb_driver);
|
|
}
|
|
|
|
module_param_named(mode, def_mode, charp, 0);
|
|
module_param_named(vram, def_vram, charp, 0);
|
|
module_param_named(rotate, def_rotate, int, 0);
|
|
module_param_named(vrfb, def_vrfb, bool, 0);
|
|
module_param_named(mirror, def_mirror, bool, 0);
|
|
|
|
/* late_initcall to let panel/ctrl drivers loaded first.
|
|
* I guess better option would be a more dynamic approach,
|
|
* so that omapfb reacts to new panels when they are loaded */
|
|
late_initcall(omapfb_init);
|
|
/*module_init(omapfb_init);*/
|
|
module_exit(omapfb_exit);
|
|
|
|
MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
|
|
MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
|
|
MODULE_LICENSE("GPL v2");
|