1939 lines
47 KiB
C
1939 lines
47 KiB
C
|
/*
|
||
|
* Framebuffer driver for TI OMAP boards
|
||
|
*
|
||
|
* Copyright (C) 2004 Nokia Corporation
|
||
|
* Author: Imre Deak <imre.deak@nokia.com>
|
||
|
*
|
||
|
* Acknowledgements:
|
||
|
* Alex McMains <aam@ridgerun.com> - Original driver
|
||
|
* Juha Yrjola <juha.yrjola@nokia.com> - Original driver and improvements
|
||
|
* Dirk Behme <dirk.behme@de.bosch.com> - changes for 2.6 kernel API
|
||
|
* Texas Instruments - H3 support
|
||
|
*
|
||
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
* under the terms of the GNU General Public License as published by the
|
||
|
* Free Software Foundation; either version 2 of the License, or (at your
|
||
|
* option) any later version.
|
||
|
*
|
||
|
* 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.,
|
||
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
*/
|
||
|
#include <linux/platform_device.h>
|
||
|
#include <linux/mm.h>
|
||
|
#include <linux/slab.h>
|
||
|
#include <linux/uaccess.h>
|
||
|
#include <linux/module.h>
|
||
|
|
||
|
#include <linux/omap-dma.h>
|
||
|
|
||
|
#include <mach/hardware.h>
|
||
|
|
||
|
#include "omapfb.h"
|
||
|
#include "lcdc.h"
|
||
|
|
||
|
#define MODULE_NAME "omapfb"
|
||
|
|
||
|
static unsigned int def_accel;
|
||
|
static unsigned long def_vram[OMAPFB_PLANE_NUM];
|
||
|
static unsigned int def_vram_cnt;
|
||
|
static unsigned long def_vxres;
|
||
|
static unsigned long def_vyres;
|
||
|
static unsigned int def_rotate;
|
||
|
static unsigned int def_mirror;
|
||
|
|
||
|
#ifdef CONFIG_FB_OMAP_MANUAL_UPDATE
|
||
|
static bool manual_update = 1;
|
||
|
#else
|
||
|
static bool manual_update;
|
||
|
#endif
|
||
|
|
||
|
static struct platform_device *fbdev_pdev;
|
||
|
static struct lcd_panel *fbdev_panel;
|
||
|
static struct omapfb_device *omapfb_dev;
|
||
|
|
||
|
struct caps_table_struct {
|
||
|
unsigned long flag;
|
||
|
const char *name;
|
||
|
};
|
||
|
|
||
|
static const struct caps_table_struct ctrl_caps[] = {
|
||
|
{ OMAPFB_CAPS_MANUAL_UPDATE, "manual update" },
|
||
|
{ OMAPFB_CAPS_TEARSYNC, "tearing synchronization" },
|
||
|
{ OMAPFB_CAPS_PLANE_RELOCATE_MEM, "relocate plane memory" },
|
||
|
{ OMAPFB_CAPS_PLANE_SCALE, "scale plane" },
|
||
|
{ OMAPFB_CAPS_WINDOW_PIXEL_DOUBLE, "pixel double window" },
|
||
|
{ OMAPFB_CAPS_WINDOW_SCALE, "scale window" },
|
||
|
{ OMAPFB_CAPS_WINDOW_OVERLAY, "overlay window" },
|
||
|
{ OMAPFB_CAPS_WINDOW_ROTATE, "rotate window" },
|
||
|
{ OMAPFB_CAPS_SET_BACKLIGHT, "backlight setting" },
|
||
|
};
|
||
|
|
||
|
static const struct caps_table_struct color_caps[] = {
|
||
|
{ 1 << OMAPFB_COLOR_RGB565, "RGB565", },
|
||
|
{ 1 << OMAPFB_COLOR_YUV422, "YUV422", },
|
||
|
{ 1 << OMAPFB_COLOR_YUV420, "YUV420", },
|
||
|
{ 1 << OMAPFB_COLOR_CLUT_8BPP, "CLUT8", },
|
||
|
{ 1 << OMAPFB_COLOR_CLUT_4BPP, "CLUT4", },
|
||
|
{ 1 << OMAPFB_COLOR_CLUT_2BPP, "CLUT2", },
|
||
|
{ 1 << OMAPFB_COLOR_CLUT_1BPP, "CLUT1", },
|
||
|
{ 1 << OMAPFB_COLOR_RGB444, "RGB444", },
|
||
|
{ 1 << OMAPFB_COLOR_YUY422, "YUY422", },
|
||
|
};
|
||
|
|
||
|
static void omapdss_release(struct device *dev)
|
||
|
{
|
||
|
}
|
||
|
|
||
|
/* dummy device for clocks */
|
||
|
static struct platform_device omapdss_device = {
|
||
|
.name = "omapdss_dss",
|
||
|
.id = -1,
|
||
|
.dev = {
|
||
|
.release = omapdss_release,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* ---------------------------------------------------------------------------
|
||
|
* LCD panel
|
||
|
* ---------------------------------------------------------------------------
|
||
|
*/
|
||
|
extern struct lcd_ctrl hwa742_ctrl;
|
||
|
|
||
|
static const struct lcd_ctrl *ctrls[] = {
|
||
|
&omap1_int_ctrl,
|
||
|
|
||
|
#ifdef CONFIG_FB_OMAP_LCDC_HWA742
|
||
|
&hwa742_ctrl,
|
||
|
#endif
|
||
|
};
|
||
|
|
||
|
#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
|
||
|
extern struct lcd_ctrl_extif omap1_ext_if;
|
||
|
#endif
|
||
|
|
||
|
static void omapfb_rqueue_lock(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
mutex_lock(&fbdev->rqueue_mutex);
|
||
|
}
|
||
|
|
||
|
static void omapfb_rqueue_unlock(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
mutex_unlock(&fbdev->rqueue_mutex);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* ---------------------------------------------------------------------------
|
||
|
* LCD controller and LCD DMA
|
||
|
* ---------------------------------------------------------------------------
|
||
|
*/
|
||
|
/*
|
||
|
* Allocate resources needed for LCD controller and LCD DMA operations. Video
|
||
|
* memory is allocated from system memory according to the virtual display
|
||
|
* size, except if a bigger memory size is specified explicitly as a kernel
|
||
|
* parameter.
|
||
|
*/
|
||
|
static int ctrl_init(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
int r;
|
||
|
int i;
|
||
|
|
||
|
/* kernel/module vram parameters override boot tags/board config */
|
||
|
if (def_vram_cnt) {
|
||
|
for (i = 0; i < def_vram_cnt; i++)
|
||
|
fbdev->mem_desc.region[i].size =
|
||
|
PAGE_ALIGN(def_vram[i]);
|
||
|
fbdev->mem_desc.region_cnt = i;
|
||
|
}
|
||
|
|
||
|
if (!fbdev->mem_desc.region_cnt) {
|
||
|
struct lcd_panel *panel = fbdev->panel;
|
||
|
int def_size;
|
||
|
int bpp = panel->bpp;
|
||
|
|
||
|
/* 12 bpp is packed in 16 bits */
|
||
|
if (bpp == 12)
|
||
|
bpp = 16;
|
||
|
def_size = def_vxres * def_vyres * bpp / 8;
|
||
|
fbdev->mem_desc.region_cnt = 1;
|
||
|
fbdev->mem_desc.region[0].size = PAGE_ALIGN(def_size);
|
||
|
}
|
||
|
r = fbdev->ctrl->init(fbdev, 0, &fbdev->mem_desc);
|
||
|
if (r < 0) {
|
||
|
dev_err(fbdev->dev, "controller initialization failed (%d)\n",
|
||
|
r);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
#ifdef DEBUG
|
||
|
for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
|
||
|
dev_dbg(fbdev->dev, "region%d phys %08x virt %p size=%lu\n",
|
||
|
i,
|
||
|
fbdev->mem_desc.region[i].paddr,
|
||
|
fbdev->mem_desc.region[i].vaddr,
|
||
|
fbdev->mem_desc.region[i].size);
|
||
|
}
|
||
|
#endif
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void ctrl_cleanup(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
fbdev->ctrl->cleanup();
|
||
|
}
|
||
|
|
||
|
/* Must be called with fbdev->rqueue_mutex held. */
|
||
|
static int ctrl_change_mode(struct fb_info *fbi)
|
||
|
{
|
||
|
int r;
|
||
|
unsigned long offset;
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct fb_var_screeninfo *var = &fbi->var;
|
||
|
|
||
|
offset = var->yoffset * fbi->fix.line_length +
|
||
|
var->xoffset * var->bits_per_pixel / 8;
|
||
|
|
||
|
if (fbdev->ctrl->sync)
|
||
|
fbdev->ctrl->sync();
|
||
|
r = fbdev->ctrl->setup_plane(plane->idx, plane->info.channel_out,
|
||
|
offset, var->xres_virtual,
|
||
|
plane->info.pos_x, plane->info.pos_y,
|
||
|
var->xres, var->yres, plane->color_mode);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
|
||
|
if (fbdev->ctrl->set_rotate != NULL) {
|
||
|
r = fbdev->ctrl->set_rotate(var->rotate);
|
||
|
if (r < 0)
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
if (fbdev->ctrl->set_scale != NULL)
|
||
|
r = fbdev->ctrl->set_scale(plane->idx,
|
||
|
var->xres, var->yres,
|
||
|
plane->info.out_width,
|
||
|
plane->info.out_height);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* ---------------------------------------------------------------------------
|
||
|
* fbdev framework callbacks and the ioctl interface
|
||
|
* ---------------------------------------------------------------------------
|
||
|
*/
|
||
|
/* Called each time the omapfb device is opened */
|
||
|
static int omapfb_open(struct fb_info *info, int user)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void omapfb_sync(struct fb_info *info);
|
||
|
|
||
|
/* Called when the omapfb device is closed. We make sure that any pending
|
||
|
* gfx DMA operations are ended, before we return. */
|
||
|
static int omapfb_release(struct fb_info *info, int user)
|
||
|
{
|
||
|
omapfb_sync(info);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* 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 *info, u_int regno, u_int red, u_int green,
|
||
|
u_int blue, u_int transp, int update_hw_pal)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = info->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct fb_var_screeninfo *var = &info->var;
|
||
|
int r = 0;
|
||
|
|
||
|
switch (plane->color_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 */
|
||
|
case OMAPFB_COLOR_RGB565:
|
||
|
case OMAPFB_COLOR_RGB444:
|
||
|
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 *)(info->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)
|
||
|
{
|
||
|
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;
|
||
|
|
||
|
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_update_full_screen(struct fb_info *fbi);
|
||
|
|
||
|
static int omapfb_blank(int blank, struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int do_update = 0;
|
||
|
int r = 0;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
switch (blank) {
|
||
|
case FB_BLANK_UNBLANK:
|
||
|
if (fbdev->state == OMAPFB_SUSPENDED) {
|
||
|
if (fbdev->ctrl->resume)
|
||
|
fbdev->ctrl->resume();
|
||
|
if (fbdev->panel->enable)
|
||
|
fbdev->panel->enable(fbdev->panel);
|
||
|
fbdev->state = OMAPFB_ACTIVE;
|
||
|
if (fbdev->ctrl->get_update_mode() ==
|
||
|
OMAPFB_MANUAL_UPDATE)
|
||
|
do_update = 1;
|
||
|
}
|
||
|
break;
|
||
|
case FB_BLANK_POWERDOWN:
|
||
|
if (fbdev->state == OMAPFB_ACTIVE) {
|
||
|
if (fbdev->panel->disable)
|
||
|
fbdev->panel->disable(fbdev->panel);
|
||
|
if (fbdev->ctrl->suspend)
|
||
|
fbdev->ctrl->suspend();
|
||
|
fbdev->state = OMAPFB_SUSPENDED;
|
||
|
}
|
||
|
break;
|
||
|
default:
|
||
|
r = -EINVAL;
|
||
|
}
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
if (r == 0 && do_update)
|
||
|
r = omapfb_update_full_screen(fbi);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static void omapfb_sync(struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
if (fbdev->ctrl->sync)
|
||
|
fbdev->ctrl->sync();
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Set fb_info.fix fields and also updates fbdev.
|
||
|
* When calling this fb_info.var must be set up already.
|
||
|
*/
|
||
|
static void set_fb_fix(struct fb_info *fbi, int from_init)
|
||
|
{
|
||
|
struct fb_fix_screeninfo *fix = &fbi->fix;
|
||
|
struct fb_var_screeninfo *var = &fbi->var;
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_mem_region *rg;
|
||
|
int bpp;
|
||
|
|
||
|
rg = &plane->fbdev->mem_desc.region[plane->idx];
|
||
|
fbi->screen_base = rg->vaddr;
|
||
|
|
||
|
if (!from_init) {
|
||
|
mutex_lock(&fbi->mm_lock);
|
||
|
fix->smem_start = rg->paddr;
|
||
|
fix->smem_len = rg->size;
|
||
|
mutex_unlock(&fbi->mm_lock);
|
||
|
} else {
|
||
|
fix->smem_start = rg->paddr;
|
||
|
fix->smem_len = rg->size;
|
||
|
}
|
||
|
|
||
|
fix->type = FB_TYPE_PACKED_PIXELS;
|
||
|
bpp = var->bits_per_pixel;
|
||
|
if (var->nonstd)
|
||
|
fix->visual = FB_VISUAL_PSEUDOCOLOR;
|
||
|
else switch (var->bits_per_pixel) {
|
||
|
case 16:
|
||
|
case 12:
|
||
|
fix->visual = FB_VISUAL_TRUECOLOR;
|
||
|
/* 12bpp is stored in 16 bits */
|
||
|
bpp = 16;
|
||
|
break;
|
||
|
case 1:
|
||
|
case 2:
|
||
|
case 4:
|
||
|
case 8:
|
||
|
fix->visual = FB_VISUAL_PSEUDOCOLOR;
|
||
|
break;
|
||
|
}
|
||
|
fix->accel = FB_ACCEL_OMAP1610;
|
||
|
fix->line_length = var->xres_virtual * bpp / 8;
|
||
|
}
|
||
|
|
||
|
static int set_color_mode(struct omapfb_plane_struct *plane,
|
||
|
struct fb_var_screeninfo *var)
|
||
|
{
|
||
|
switch (var->nonstd) {
|
||
|
case 0:
|
||
|
break;
|
||
|
case OMAPFB_COLOR_YUV422:
|
||
|
var->bits_per_pixel = 16;
|
||
|
plane->color_mode = var->nonstd;
|
||
|
return 0;
|
||
|
case OMAPFB_COLOR_YUV420:
|
||
|
var->bits_per_pixel = 12;
|
||
|
plane->color_mode = var->nonstd;
|
||
|
return 0;
|
||
|
case OMAPFB_COLOR_YUY422:
|
||
|
var->bits_per_pixel = 16;
|
||
|
plane->color_mode = var->nonstd;
|
||
|
return 0;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
switch (var->bits_per_pixel) {
|
||
|
case 1:
|
||
|
plane->color_mode = OMAPFB_COLOR_CLUT_1BPP;
|
||
|
return 0;
|
||
|
case 2:
|
||
|
plane->color_mode = OMAPFB_COLOR_CLUT_2BPP;
|
||
|
return 0;
|
||
|
case 4:
|
||
|
plane->color_mode = OMAPFB_COLOR_CLUT_4BPP;
|
||
|
return 0;
|
||
|
case 8:
|
||
|
plane->color_mode = OMAPFB_COLOR_CLUT_8BPP;
|
||
|
return 0;
|
||
|
case 12:
|
||
|
var->bits_per_pixel = 16;
|
||
|
case 16:
|
||
|
if (plane->fbdev->panel->bpp == 12)
|
||
|
plane->color_mode = OMAPFB_COLOR_RGB444;
|
||
|
else
|
||
|
plane->color_mode = OMAPFB_COLOR_RGB565;
|
||
|
return 0;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Check the values in var against our capabilities and in case of out of
|
||
|
* bound values try to adjust them.
|
||
|
*/
|
||
|
static int set_fb_var(struct fb_info *fbi,
|
||
|
struct fb_var_screeninfo *var)
|
||
|
{
|
||
|
int bpp;
|
||
|
unsigned long max_frame_size;
|
||
|
unsigned long line_size;
|
||
|
int xres_min, xres_max;
|
||
|
int yres_min, yres_max;
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct lcd_panel *panel = fbdev->panel;
|
||
|
|
||
|
if (set_color_mode(plane, var) < 0)
|
||
|
return -EINVAL;
|
||
|
|
||
|
bpp = var->bits_per_pixel;
|
||
|
if (plane->color_mode == OMAPFB_COLOR_RGB444)
|
||
|
bpp = 16;
|
||
|
|
||
|
switch (var->rotate) {
|
||
|
case 0:
|
||
|
case 180:
|
||
|
xres_min = OMAPFB_PLANE_XRES_MIN;
|
||
|
xres_max = panel->x_res;
|
||
|
yres_min = OMAPFB_PLANE_YRES_MIN;
|
||
|
yres_max = panel->y_res;
|
||
|
if (cpu_is_omap15xx()) {
|
||
|
var->xres = panel->x_res;
|
||
|
var->yres = panel->y_res;
|
||
|
}
|
||
|
break;
|
||
|
case 90:
|
||
|
case 270:
|
||
|
xres_min = OMAPFB_PLANE_YRES_MIN;
|
||
|
xres_max = panel->y_res;
|
||
|
yres_min = OMAPFB_PLANE_XRES_MIN;
|
||
|
yres_max = panel->x_res;
|
||
|
if (cpu_is_omap15xx()) {
|
||
|
var->xres = panel->y_res;
|
||
|
var->yres = panel->x_res;
|
||
|
}
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (var->xres < xres_min)
|
||
|
var->xres = xres_min;
|
||
|
if (var->yres < yres_min)
|
||
|
var->yres = yres_min;
|
||
|
if (var->xres > xres_max)
|
||
|
var->xres = xres_max;
|
||
|
if (var->yres > yres_max)
|
||
|
var->yres = yres_max;
|
||
|
|
||
|
if (var->xres_virtual < var->xres)
|
||
|
var->xres_virtual = var->xres;
|
||
|
if (var->yres_virtual < var->yres)
|
||
|
var->yres_virtual = var->yres;
|
||
|
max_frame_size = fbdev->mem_desc.region[plane->idx].size;
|
||
|
line_size = var->xres_virtual * bpp / 8;
|
||
|
if (line_size * var->yres_virtual > max_frame_size) {
|
||
|
/* Try to keep yres_virtual first */
|
||
|
line_size = max_frame_size / var->yres_virtual;
|
||
|
var->xres_virtual = line_size * 8 / bpp;
|
||
|
if (var->xres_virtual < var->xres) {
|
||
|
/* Still doesn't fit. Shrink yres_virtual too */
|
||
|
var->xres_virtual = var->xres;
|
||
|
line_size = var->xres * bpp / 8;
|
||
|
var->yres_virtual = max_frame_size / line_size;
|
||
|
}
|
||
|
/* Recheck this, as the virtual size changed. */
|
||
|
if (var->xres_virtual < var->xres)
|
||
|
var->xres = var->xres_virtual;
|
||
|
if (var->yres_virtual < var->yres)
|
||
|
var->yres = var->yres_virtual;
|
||
|
if (var->xres < xres_min || var->yres < yres_min)
|
||
|
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;
|
||
|
|
||
|
if (plane->color_mode == OMAPFB_COLOR_RGB444) {
|
||
|
var->red.offset = 8; var->red.length = 4;
|
||
|
var->red.msb_right = 0;
|
||
|
var->green.offset = 4; var->green.length = 4;
|
||
|
var->green.msb_right = 0;
|
||
|
var->blue.offset = 0; var->blue.length = 4;
|
||
|
var->blue.msb_right = 0;
|
||
|
} else {
|
||
|
var->red.offset = 11; var->red.length = 5;
|
||
|
var->red.msb_right = 0;
|
||
|
var->green.offset = 5; var->green.length = 6;
|
||
|
var->green.msb_right = 0;
|
||
|
var->blue.offset = 0; var->blue.length = 5;
|
||
|
var->blue.msb_right = 0;
|
||
|
}
|
||
|
|
||
|
var->height = -1;
|
||
|
var->width = -1;
|
||
|
var->grayscale = 0;
|
||
|
|
||
|
/* pixclock in ps, the rest in pixclock */
|
||
|
var->pixclock = 10000000 / (panel->pixel_clock / 100);
|
||
|
var->left_margin = panel->hfp;
|
||
|
var->right_margin = panel->hbp;
|
||
|
var->upper_margin = panel->vfp;
|
||
|
var->lower_margin = panel->vbp;
|
||
|
var->hsync_len = panel->hsw;
|
||
|
var->vsync_len = panel->vsw;
|
||
|
|
||
|
/* TODO: get these from panel->config */
|
||
|
var->vmode = FB_VMODE_NONINTERLACED;
|
||
|
var->sync = 0;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
/*
|
||
|
* Set new x,y offsets in the virtual display for the visible area and switch
|
||
|
* to the new mode.
|
||
|
*/
|
||
|
static int omapfb_pan_display(struct fb_var_screeninfo *var,
|
||
|
struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int r = 0;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
if (var->xoffset != fbi->var.xoffset ||
|
||
|
var->yoffset != fbi->var.yoffset) {
|
||
|
struct fb_var_screeninfo *new_var = &fbdev->new_var;
|
||
|
|
||
|
memcpy(new_var, &fbi->var, sizeof(*new_var));
|
||
|
new_var->xoffset = var->xoffset;
|
||
|
new_var->yoffset = var->yoffset;
|
||
|
if (set_fb_var(fbi, new_var))
|
||
|
r = -EINVAL;
|
||
|
else {
|
||
|
memcpy(&fbi->var, new_var, sizeof(*new_var));
|
||
|
ctrl_change_mode(fbi);
|
||
|
}
|
||
|
}
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/* Set mirror to vertical axis and switch to the new mode. */
|
||
|
static int omapfb_mirror(struct fb_info *fbi, int mirror)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int r = 0;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
mirror = mirror ? 1 : 0;
|
||
|
if (cpu_is_omap15xx())
|
||
|
r = -EINVAL;
|
||
|
else if (mirror != plane->info.mirror) {
|
||
|
plane->info.mirror = mirror;
|
||
|
r = ctrl_change_mode(fbi);
|
||
|
}
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Check values in var, try to adjust them in case of out of bound values if
|
||
|
* possible, or return error.
|
||
|
*/
|
||
|
static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int r;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
if (fbdev->ctrl->sync != NULL)
|
||
|
fbdev->ctrl->sync();
|
||
|
r = set_fb_var(fbi, var);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Switch to a new mode. The parameters for it has been check already by
|
||
|
* omapfb_check_var.
|
||
|
*/
|
||
|
static int omapfb_set_par(struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int r = 0;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
set_fb_fix(fbi, 0);
|
||
|
r = ctrl_change_mode(fbi);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
int omapfb_update_window_async(struct fb_info *fbi,
|
||
|
struct omapfb_update_window *win,
|
||
|
void (*callback)(void *),
|
||
|
void *callback_data)
|
||
|
{
|
||
|
int xres, yres;
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct fb_var_screeninfo *var = &fbi->var;
|
||
|
|
||
|
switch (var->rotate) {
|
||
|
case 0:
|
||
|
case 180:
|
||
|
xres = fbdev->panel->x_res;
|
||
|
yres = fbdev->panel->y_res;
|
||
|
break;
|
||
|
case 90:
|
||
|
case 270:
|
||
|
xres = fbdev->panel->y_res;
|
||
|
yres = fbdev->panel->x_res;
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (win->x >= xres || win->y >= yres ||
|
||
|
win->out_x > xres || win->out_y > yres)
|
||
|
return -EINVAL;
|
||
|
|
||
|
if (!fbdev->ctrl->update_window ||
|
||
|
fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
|
||
|
return -ENODEV;
|
||
|
|
||
|
if (win->x + win->width > xres)
|
||
|
win->width = xres - win->x;
|
||
|
if (win->y + win->height > yres)
|
||
|
win->height = yres - win->y;
|
||
|
if (win->out_x + win->out_width > xres)
|
||
|
win->out_width = xres - win->out_x;
|
||
|
if (win->out_y + win->out_height > yres)
|
||
|
win->out_height = yres - win->out_y;
|
||
|
if (!win->width || !win->height || !win->out_width || !win->out_height)
|
||
|
return 0;
|
||
|
|
||
|
return fbdev->ctrl->update_window(fbi, win, callback, callback_data);
|
||
|
}
|
||
|
EXPORT_SYMBOL(omapfb_update_window_async);
|
||
|
|
||
|
static int omapfb_update_win(struct fb_info *fbi,
|
||
|
struct omapfb_update_window *win)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
int ret;
|
||
|
|
||
|
omapfb_rqueue_lock(plane->fbdev);
|
||
|
ret = omapfb_update_window_async(fbi, win, NULL, NULL);
|
||
|
omapfb_rqueue_unlock(plane->fbdev);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int omapfb_update_full_screen(struct fb_info *fbi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct omapfb_update_window win;
|
||
|
int r;
|
||
|
|
||
|
if (!fbdev->ctrl->update_window ||
|
||
|
fbdev->ctrl->get_update_mode() != OMAPFB_MANUAL_UPDATE)
|
||
|
return -ENODEV;
|
||
|
|
||
|
win.x = 0;
|
||
|
win.y = 0;
|
||
|
win.width = fbi->var.xres;
|
||
|
win.height = fbi->var.yres;
|
||
|
win.out_x = 0;
|
||
|
win.out_y = 0;
|
||
|
win.out_width = fbi->var.xres;
|
||
|
win.out_height = fbi->var.yres;
|
||
|
win.format = 0;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->update_window(fbi, &win, NULL, NULL);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct lcd_panel *panel = fbdev->panel;
|
||
|
struct omapfb_plane_info old_info;
|
||
|
int r = 0;
|
||
|
|
||
|
if (pi->pos_x + pi->out_width > panel->x_res ||
|
||
|
pi->pos_y + pi->out_height > panel->y_res)
|
||
|
return -EINVAL;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
if (pi->enabled && !fbdev->mem_desc.region[plane->idx].size) {
|
||
|
/*
|
||
|
* This plane's memory was freed, can't enable it
|
||
|
* until it's reallocated.
|
||
|
*/
|
||
|
r = -EINVAL;
|
||
|
goto out;
|
||
|
}
|
||
|
old_info = plane->info;
|
||
|
plane->info = *pi;
|
||
|
if (pi->enabled) {
|
||
|
r = ctrl_change_mode(fbi);
|
||
|
if (r < 0) {
|
||
|
plane->info = old_info;
|
||
|
goto out;
|
||
|
}
|
||
|
}
|
||
|
r = fbdev->ctrl->enable_plane(plane->idx, pi->enabled);
|
||
|
if (r < 0) {
|
||
|
plane->info = old_info;
|
||
|
goto out;
|
||
|
}
|
||
|
out:
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
|
||
|
*pi = plane->info;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct omapfb_mem_region *rg = &fbdev->mem_desc.region[plane->idx];
|
||
|
size_t size;
|
||
|
int r = 0;
|
||
|
|
||
|
if (fbdev->ctrl->setup_mem == NULL)
|
||
|
return -ENODEV;
|
||
|
if (mi->type != OMAPFB_MEMTYPE_SDRAM)
|
||
|
return -EINVAL;
|
||
|
|
||
|
size = PAGE_ALIGN(mi->size);
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
if (plane->info.enabled) {
|
||
|
r = -EBUSY;
|
||
|
goto out;
|
||
|
}
|
||
|
if (rg->size != size || rg->type != mi->type) {
|
||
|
struct fb_var_screeninfo *new_var = &fbdev->new_var;
|
||
|
unsigned long old_size = rg->size;
|
||
|
u8 old_type = rg->type;
|
||
|
unsigned long paddr;
|
||
|
|
||
|
rg->size = size;
|
||
|
rg->type = mi->type;
|
||
|
/*
|
||
|
* size == 0 is a special case, for which we
|
||
|
* don't check / adjust the screen parameters.
|
||
|
* This isn't a problem since the plane can't
|
||
|
* be reenabled unless its size is > 0.
|
||
|
*/
|
||
|
if (old_size != size && size) {
|
||
|
if (size) {
|
||
|
memcpy(new_var, &fbi->var, sizeof(*new_var));
|
||
|
r = set_fb_var(fbi, new_var);
|
||
|
if (r < 0)
|
||
|
goto out;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (fbdev->ctrl->sync)
|
||
|
fbdev->ctrl->sync();
|
||
|
r = fbdev->ctrl->setup_mem(plane->idx, size, mi->type, &paddr);
|
||
|
if (r < 0) {
|
||
|
/* Revert changes. */
|
||
|
rg->size = old_size;
|
||
|
rg->type = old_type;
|
||
|
goto out;
|
||
|
}
|
||
|
rg->paddr = paddr;
|
||
|
|
||
|
if (old_size != size) {
|
||
|
if (size) {
|
||
|
memcpy(&fbi->var, new_var, sizeof(fbi->var));
|
||
|
set_fb_fix(fbi, 0);
|
||
|
} else {
|
||
|
/*
|
||
|
* Set these explicitly to indicate that the
|
||
|
* plane memory is dealloce'd, the other
|
||
|
* screen parameters in var / fix are invalid.
|
||
|
*/
|
||
|
mutex_lock(&fbi->mm_lock);
|
||
|
fbi->fix.smem_start = 0;
|
||
|
fbi->fix.smem_len = 0;
|
||
|
mutex_unlock(&fbi->mm_lock);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
out:
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct omapfb_mem_region *rg;
|
||
|
|
||
|
rg = &fbdev->mem_desc.region[plane->idx];
|
||
|
memset(mi, 0, sizeof(*mi));
|
||
|
mi->size = rg->size;
|
||
|
mi->type = rg->type;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int omapfb_set_color_key(struct omapfb_device *fbdev,
|
||
|
struct omapfb_color_key *ck)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
if (!fbdev->ctrl->set_color_key)
|
||
|
return -ENODEV;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->set_color_key(ck);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_get_color_key(struct omapfb_device *fbdev,
|
||
|
struct omapfb_color_key *ck)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
if (!fbdev->ctrl->get_color_key)
|
||
|
return -ENODEV;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->get_color_key(ck);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static struct blocking_notifier_head omapfb_client_list[OMAPFB_PLANE_NUM];
|
||
|
static int notifier_inited;
|
||
|
|
||
|
static void omapfb_init_notifier(void)
|
||
|
{
|
||
|
int i;
|
||
|
|
||
|
for (i = 0; i < OMAPFB_PLANE_NUM; i++)
|
||
|
BLOCKING_INIT_NOTIFIER_HEAD(&omapfb_client_list[i]);
|
||
|
}
|
||
|
|
||
|
int omapfb_register_client(struct omapfb_notifier_block *omapfb_nb,
|
||
|
omapfb_notifier_callback_t callback,
|
||
|
void *callback_data)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
if ((unsigned)omapfb_nb->plane_idx > OMAPFB_PLANE_NUM)
|
||
|
return -EINVAL;
|
||
|
|
||
|
if (!notifier_inited) {
|
||
|
omapfb_init_notifier();
|
||
|
notifier_inited = 1;
|
||
|
}
|
||
|
|
||
|
omapfb_nb->nb.notifier_call = (int (*)(struct notifier_block *,
|
||
|
unsigned long, void *))callback;
|
||
|
omapfb_nb->data = callback_data;
|
||
|
r = blocking_notifier_chain_register(
|
||
|
&omapfb_client_list[omapfb_nb->plane_idx],
|
||
|
&omapfb_nb->nb);
|
||
|
if (r)
|
||
|
return r;
|
||
|
if (omapfb_dev != NULL &&
|
||
|
omapfb_dev->ctrl && omapfb_dev->ctrl->bind_client) {
|
||
|
omapfb_dev->ctrl->bind_client(omapfb_nb);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
EXPORT_SYMBOL(omapfb_register_client);
|
||
|
|
||
|
int omapfb_unregister_client(struct omapfb_notifier_block *omapfb_nb)
|
||
|
{
|
||
|
return blocking_notifier_chain_unregister(
|
||
|
&omapfb_client_list[omapfb_nb->plane_idx], &omapfb_nb->nb);
|
||
|
}
|
||
|
EXPORT_SYMBOL(omapfb_unregister_client);
|
||
|
|
||
|
void omapfb_notify_clients(struct omapfb_device *fbdev, unsigned long event)
|
||
|
{
|
||
|
int i;
|
||
|
|
||
|
if (!notifier_inited)
|
||
|
/* no client registered yet */
|
||
|
return;
|
||
|
|
||
|
for (i = 0; i < OMAPFB_PLANE_NUM; i++)
|
||
|
blocking_notifier_call_chain(&omapfb_client_list[i], event,
|
||
|
fbdev->fb_info[i]);
|
||
|
}
|
||
|
EXPORT_SYMBOL(omapfb_notify_clients);
|
||
|
|
||
|
static int omapfb_set_update_mode(struct omapfb_device *fbdev,
|
||
|
enum omapfb_update_mode mode)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->set_update_mode(mode);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static enum omapfb_update_mode omapfb_get_update_mode(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->get_update_mode();
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static void omapfb_get_caps(struct omapfb_device *fbdev, int plane,
|
||
|
struct omapfb_caps *caps)
|
||
|
{
|
||
|
memset(caps, 0, sizeof(*caps));
|
||
|
fbdev->ctrl->get_caps(plane, caps);
|
||
|
if (fbdev->panel->get_caps)
|
||
|
caps->ctrl |= fbdev->panel->get_caps(fbdev->panel);
|
||
|
}
|
||
|
|
||
|
/* For lcd testing */
|
||
|
void omapfb_write_first_pixel(struct omapfb_device *fbdev, u16 pixval)
|
||
|
{
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
*(u16 *)fbdev->mem_desc.region[0].vaddr = pixval;
|
||
|
if (fbdev->ctrl->get_update_mode() == OMAPFB_MANUAL_UPDATE) {
|
||
|
struct omapfb_update_window win;
|
||
|
|
||
|
memset(&win, 0, sizeof(win));
|
||
|
win.width = 2;
|
||
|
win.height = 2;
|
||
|
win.out_width = 2;
|
||
|
win.out_height = 2;
|
||
|
fbdev->ctrl->update_window(fbdev->fb_info[0], &win, NULL, NULL);
|
||
|
}
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
}
|
||
|
EXPORT_SYMBOL(omapfb_write_first_pixel);
|
||
|
|
||
|
/*
|
||
|
* Ioctl interface. Part of the kernel mode frame buffer API is duplicated
|
||
|
* here to be accessible by user mode code.
|
||
|
*/
|
||
|
static int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd,
|
||
|
unsigned long arg)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = fbi->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
struct fb_ops *ops = fbi->fbops;
|
||
|
union {
|
||
|
struct omapfb_update_window update_window;
|
||
|
struct omapfb_plane_info plane_info;
|
||
|
struct omapfb_mem_info mem_info;
|
||
|
struct omapfb_color_key color_key;
|
||
|
enum omapfb_update_mode update_mode;
|
||
|
struct omapfb_caps caps;
|
||
|
unsigned int mirror;
|
||
|
int plane_out;
|
||
|
int enable_plane;
|
||
|
} p;
|
||
|
int r = 0;
|
||
|
|
||
|
BUG_ON(!ops);
|
||
|
switch (cmd) {
|
||
|
case OMAPFB_MIRROR:
|
||
|
if (get_user(p.mirror, (int __user *)arg))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
omapfb_mirror(fbi, p.mirror);
|
||
|
break;
|
||
|
case OMAPFB_SYNC_GFX:
|
||
|
omapfb_sync(fbi);
|
||
|
break;
|
||
|
case OMAPFB_VSYNC:
|
||
|
break;
|
||
|
case OMAPFB_SET_UPDATE_MODE:
|
||
|
if (get_user(p.update_mode, (int __user *)arg))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
r = omapfb_set_update_mode(fbdev, p.update_mode);
|
||
|
break;
|
||
|
case OMAPFB_GET_UPDATE_MODE:
|
||
|
p.update_mode = omapfb_get_update_mode(fbdev);
|
||
|
if (put_user(p.update_mode,
|
||
|
(enum omapfb_update_mode __user *)arg))
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
case OMAPFB_UPDATE_WINDOW_OLD:
|
||
|
if (copy_from_user(&p.update_window, (void __user *)arg,
|
||
|
sizeof(struct omapfb_update_window_old)))
|
||
|
r = -EFAULT;
|
||
|
else {
|
||
|
struct omapfb_update_window *u = &p.update_window;
|
||
|
u->out_x = u->x;
|
||
|
u->out_y = u->y;
|
||
|
u->out_width = u->width;
|
||
|
u->out_height = u->height;
|
||
|
memset(u->reserved, 0, sizeof(u->reserved));
|
||
|
r = omapfb_update_win(fbi, u);
|
||
|
}
|
||
|
break;
|
||
|
case OMAPFB_UPDATE_WINDOW:
|
||
|
if (copy_from_user(&p.update_window, (void __user *)arg,
|
||
|
sizeof(p.update_window)))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
r = omapfb_update_win(fbi, &p.update_window);
|
||
|
break;
|
||
|
case OMAPFB_SETUP_PLANE:
|
||
|
if (copy_from_user(&p.plane_info, (void __user *)arg,
|
||
|
sizeof(p.plane_info)))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
r = omapfb_setup_plane(fbi, &p.plane_info);
|
||
|
break;
|
||
|
case OMAPFB_QUERY_PLANE:
|
||
|
if ((r = omapfb_query_plane(fbi, &p.plane_info)) < 0)
|
||
|
break;
|
||
|
if (copy_to_user((void __user *)arg, &p.plane_info,
|
||
|
sizeof(p.plane_info)))
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
case OMAPFB_SETUP_MEM:
|
||
|
if (copy_from_user(&p.mem_info, (void __user *)arg,
|
||
|
sizeof(p.mem_info)))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
r = omapfb_setup_mem(fbi, &p.mem_info);
|
||
|
break;
|
||
|
case OMAPFB_QUERY_MEM:
|
||
|
if ((r = omapfb_query_mem(fbi, &p.mem_info)) < 0)
|
||
|
break;
|
||
|
if (copy_to_user((void __user *)arg, &p.mem_info,
|
||
|
sizeof(p.mem_info)))
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
case OMAPFB_SET_COLOR_KEY:
|
||
|
if (copy_from_user(&p.color_key, (void __user *)arg,
|
||
|
sizeof(p.color_key)))
|
||
|
r = -EFAULT;
|
||
|
else
|
||
|
r = omapfb_set_color_key(fbdev, &p.color_key);
|
||
|
break;
|
||
|
case OMAPFB_GET_COLOR_KEY:
|
||
|
if ((r = omapfb_get_color_key(fbdev, &p.color_key)) < 0)
|
||
|
break;
|
||
|
if (copy_to_user((void __user *)arg, &p.color_key,
|
||
|
sizeof(p.color_key)))
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
case OMAPFB_GET_CAPS:
|
||
|
omapfb_get_caps(fbdev, plane->idx, &p.caps);
|
||
|
if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
case OMAPFB_LCD_TEST:
|
||
|
{
|
||
|
int test_num;
|
||
|
|
||
|
if (get_user(test_num, (int __user *)arg)) {
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
}
|
||
|
if (!fbdev->panel->run_test) {
|
||
|
r = -EINVAL;
|
||
|
break;
|
||
|
}
|
||
|
r = fbdev->panel->run_test(fbdev->panel, test_num);
|
||
|
break;
|
||
|
}
|
||
|
case OMAPFB_CTRL_TEST:
|
||
|
{
|
||
|
int test_num;
|
||
|
|
||
|
if (get_user(test_num, (int __user *)arg)) {
|
||
|
r = -EFAULT;
|
||
|
break;
|
||
|
}
|
||
|
if (!fbdev->ctrl->run_test) {
|
||
|
r = -EINVAL;
|
||
|
break;
|
||
|
}
|
||
|
r = fbdev->ctrl->run_test(test_num);
|
||
|
break;
|
||
|
}
|
||
|
default:
|
||
|
r = -EINVAL;
|
||
|
}
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
|
||
|
{
|
||
|
struct omapfb_plane_struct *plane = info->par;
|
||
|
struct omapfb_device *fbdev = plane->fbdev;
|
||
|
int r;
|
||
|
|
||
|
omapfb_rqueue_lock(fbdev);
|
||
|
r = fbdev->ctrl->mmap(info, vma);
|
||
|
omapfb_rqueue_unlock(fbdev);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Callback table for the frame buffer framework. Some of these pointers
|
||
|
* will be changed according to the current setting of fb_info->accel_flags.
|
||
|
*/
|
||
|
static struct fb_ops omapfb_ops = {
|
||
|
.owner = THIS_MODULE,
|
||
|
.fb_open = omapfb_open,
|
||
|
.fb_release = omapfb_release,
|
||
|
.fb_setcolreg = omapfb_setcolreg,
|
||
|
.fb_setcmap = omapfb_setcmap,
|
||
|
.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,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* ---------------------------------------------------------------------------
|
||
|
* Sysfs interface
|
||
|
* ---------------------------------------------------------------------------
|
||
|
*/
|
||
|
/* omapfbX sysfs entries */
|
||
|
static ssize_t omapfb_show_caps_num(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
int plane;
|
||
|
size_t size;
|
||
|
struct omapfb_caps caps;
|
||
|
|
||
|
plane = 0;
|
||
|
size = 0;
|
||
|
while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
|
||
|
omapfb_get_caps(fbdev, plane, &caps);
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
"plane#%d %#010x %#010x %#010x\n",
|
||
|
plane, caps.ctrl, caps.plane_color, caps.wnd_color);
|
||
|
plane++;
|
||
|
}
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
static ssize_t omapfb_show_caps_text(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
int i;
|
||
|
struct omapfb_caps caps;
|
||
|
int plane;
|
||
|
size_t size;
|
||
|
|
||
|
plane = 0;
|
||
|
size = 0;
|
||
|
while (size < PAGE_SIZE && plane < OMAPFB_PLANE_NUM) {
|
||
|
omapfb_get_caps(fbdev, plane, &caps);
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
"plane#%d:\n", plane);
|
||
|
for (i = 0; i < ARRAY_SIZE(ctrl_caps) &&
|
||
|
size < PAGE_SIZE; i++) {
|
||
|
if (ctrl_caps[i].flag & caps.ctrl)
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
" %s\n", ctrl_caps[i].name);
|
||
|
}
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
" plane colors:\n");
|
||
|
for (i = 0; i < ARRAY_SIZE(color_caps) &&
|
||
|
size < PAGE_SIZE; i++) {
|
||
|
if (color_caps[i].flag & caps.plane_color)
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
" %s\n", color_caps[i].name);
|
||
|
}
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
" window colors:\n");
|
||
|
for (i = 0; i < ARRAY_SIZE(color_caps) &&
|
||
|
size < PAGE_SIZE; i++) {
|
||
|
if (color_caps[i].flag & caps.wnd_color)
|
||
|
size += snprintf(&buf[size], PAGE_SIZE - size,
|
||
|
" %s\n", color_caps[i].name);
|
||
|
}
|
||
|
|
||
|
plane++;
|
||
|
}
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
static DEVICE_ATTR(caps_num, 0444, omapfb_show_caps_num, NULL);
|
||
|
static DEVICE_ATTR(caps_text, 0444, omapfb_show_caps_text, NULL);
|
||
|
|
||
|
/* panel sysfs entries */
|
||
|
static ssize_t omapfb_show_panel_name(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
|
||
|
return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
|
||
|
}
|
||
|
|
||
|
static ssize_t omapfb_show_bklight_level(struct device *dev,
|
||
|
struct device_attribute *attr,
|
||
|
char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
int r;
|
||
|
|
||
|
if (fbdev->panel->get_bklight_level) {
|
||
|
r = snprintf(buf, PAGE_SIZE, "%d\n",
|
||
|
fbdev->panel->get_bklight_level(fbdev->panel));
|
||
|
} else
|
||
|
r = -ENODEV;
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static ssize_t omapfb_store_bklight_level(struct device *dev,
|
||
|
struct device_attribute *attr,
|
||
|
const char *buf, size_t size)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
int r;
|
||
|
|
||
|
if (fbdev->panel->set_bklight_level) {
|
||
|
unsigned int level;
|
||
|
|
||
|
if (sscanf(buf, "%10d", &level) == 1) {
|
||
|
r = fbdev->panel->set_bklight_level(fbdev->panel,
|
||
|
level);
|
||
|
} else
|
||
|
r = -EINVAL;
|
||
|
} else
|
||
|
r = -ENODEV;
|
||
|
return r ? r : size;
|
||
|
}
|
||
|
|
||
|
static ssize_t omapfb_show_bklight_max(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
int r;
|
||
|
|
||
|
if (fbdev->panel->get_bklight_level) {
|
||
|
r = snprintf(buf, PAGE_SIZE, "%d\n",
|
||
|
fbdev->panel->get_bklight_max(fbdev->panel));
|
||
|
} else
|
||
|
r = -ENODEV;
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static struct device_attribute dev_attr_panel_name =
|
||
|
__ATTR(name, 0444, omapfb_show_panel_name, NULL);
|
||
|
static DEVICE_ATTR(backlight_level, 0664,
|
||
|
omapfb_show_bklight_level, omapfb_store_bklight_level);
|
||
|
static DEVICE_ATTR(backlight_max, 0444, omapfb_show_bklight_max, NULL);
|
||
|
|
||
|
static struct attribute *panel_attrs[] = {
|
||
|
&dev_attr_panel_name.attr,
|
||
|
&dev_attr_backlight_level.attr,
|
||
|
&dev_attr_backlight_max.attr,
|
||
|
NULL,
|
||
|
};
|
||
|
|
||
|
static const struct attribute_group panel_attr_grp = {
|
||
|
.name = "panel",
|
||
|
.attrs = panel_attrs,
|
||
|
};
|
||
|
|
||
|
/* ctrl sysfs entries */
|
||
|
static ssize_t omapfb_show_ctrl_name(struct device *dev,
|
||
|
struct device_attribute *attr, char *buf)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = dev_get_drvdata(dev);
|
||
|
|
||
|
return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
|
||
|
}
|
||
|
|
||
|
static struct device_attribute dev_attr_ctrl_name =
|
||
|
__ATTR(name, 0444, omapfb_show_ctrl_name, NULL);
|
||
|
|
||
|
static struct attribute *ctrl_attrs[] = {
|
||
|
&dev_attr_ctrl_name.attr,
|
||
|
NULL,
|
||
|
};
|
||
|
|
||
|
static const struct attribute_group ctrl_attr_grp = {
|
||
|
.name = "ctrl",
|
||
|
.attrs = ctrl_attrs,
|
||
|
};
|
||
|
|
||
|
static int omapfb_register_sysfs(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
if ((r = device_create_file(fbdev->dev, &dev_attr_caps_num)))
|
||
|
goto fail0;
|
||
|
|
||
|
if ((r = device_create_file(fbdev->dev, &dev_attr_caps_text)))
|
||
|
goto fail1;
|
||
|
|
||
|
if ((r = sysfs_create_group(&fbdev->dev->kobj, &panel_attr_grp)))
|
||
|
goto fail2;
|
||
|
|
||
|
if ((r = sysfs_create_group(&fbdev->dev->kobj, &ctrl_attr_grp)))
|
||
|
goto fail3;
|
||
|
|
||
|
return 0;
|
||
|
fail3:
|
||
|
sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
|
||
|
fail2:
|
||
|
device_remove_file(fbdev->dev, &dev_attr_caps_text);
|
||
|
fail1:
|
||
|
device_remove_file(fbdev->dev, &dev_attr_caps_num);
|
||
|
fail0:
|
||
|
dev_err(fbdev->dev, "unable to register sysfs interface\n");
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static void omapfb_unregister_sysfs(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
sysfs_remove_group(&fbdev->dev->kobj, &ctrl_attr_grp);
|
||
|
sysfs_remove_group(&fbdev->dev->kobj, &panel_attr_grp);
|
||
|
device_remove_file(fbdev->dev, &dev_attr_caps_num);
|
||
|
device_remove_file(fbdev->dev, &dev_attr_caps_text);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* ---------------------------------------------------------------------------
|
||
|
* LDM callbacks
|
||
|
* ---------------------------------------------------------------------------
|
||
|
*/
|
||
|
/* Initialize system fb_info object and set the default video mode.
|
||
|
* The frame buffer memory already allocated by lcddma_init
|
||
|
*/
|
||
|
static int fbinfo_init(struct omapfb_device *fbdev, struct fb_info *info)
|
||
|
{
|
||
|
struct fb_var_screeninfo *var = &info->var;
|
||
|
struct fb_fix_screeninfo *fix = &info->fix;
|
||
|
int r = 0;
|
||
|
|
||
|
info->fbops = &omapfb_ops;
|
||
|
info->flags = FBINFO_FLAG_DEFAULT;
|
||
|
|
||
|
strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
|
||
|
|
||
|
info->pseudo_palette = fbdev->pseudo_palette;
|
||
|
|
||
|
var->accel_flags = def_accel ? FB_ACCELF_TEXT : 0;
|
||
|
var->xres = def_vxres;
|
||
|
var->yres = def_vyres;
|
||
|
var->xres_virtual = def_vxres;
|
||
|
var->yres_virtual = def_vyres;
|
||
|
var->rotate = def_rotate;
|
||
|
var->bits_per_pixel = fbdev->panel->bpp;
|
||
|
|
||
|
set_fb_var(info, var);
|
||
|
set_fb_fix(info, 1);
|
||
|
|
||
|
r = fb_alloc_cmap(&info->cmap, 16, 0);
|
||
|
if (r != 0)
|
||
|
dev_err(fbdev->dev, "unable to allocate color map memory\n");
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/* Release the fb_info object */
|
||
|
static void fbinfo_cleanup(struct omapfb_device *fbdev, struct fb_info *fbi)
|
||
|
{
|
||
|
fb_dealloc_cmap(&fbi->cmap);
|
||
|
}
|
||
|
|
||
|
static void planes_cleanup(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
int i;
|
||
|
|
||
|
for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
|
||
|
if (fbdev->fb_info[i] == NULL)
|
||
|
break;
|
||
|
fbinfo_cleanup(fbdev, fbdev->fb_info[i]);
|
||
|
framebuffer_release(fbdev->fb_info[i]);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static int planes_init(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
struct fb_info *fbi;
|
||
|
int i;
|
||
|
int r;
|
||
|
|
||
|
for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
|
||
|
struct omapfb_plane_struct *plane;
|
||
|
fbi = framebuffer_alloc(sizeof(struct omapfb_plane_struct),
|
||
|
fbdev->dev);
|
||
|
if (fbi == NULL) {
|
||
|
dev_err(fbdev->dev,
|
||
|
"unable to allocate memory for plane info\n");
|
||
|
planes_cleanup(fbdev);
|
||
|
return -ENOMEM;
|
||
|
}
|
||
|
plane = fbi->par;
|
||
|
plane->idx = i;
|
||
|
plane->fbdev = fbdev;
|
||
|
plane->info.mirror = def_mirror;
|
||
|
fbdev->fb_info[i] = fbi;
|
||
|
|
||
|
if ((r = fbinfo_init(fbdev, fbi)) < 0) {
|
||
|
framebuffer_release(fbi);
|
||
|
planes_cleanup(fbdev);
|
||
|
return r;
|
||
|
}
|
||
|
plane->info.out_width = fbi->var.xres;
|
||
|
plane->info.out_height = fbi->var.yres;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Free driver resources. Can be called to rollback an aborted initialization
|
||
|
* sequence.
|
||
|
*/
|
||
|
static void omapfb_free_resources(struct omapfb_device *fbdev, int state)
|
||
|
{
|
||
|
int i;
|
||
|
|
||
|
switch (state) {
|
||
|
case OMAPFB_ACTIVE:
|
||
|
for (i = 0; i < fbdev->mem_desc.region_cnt; i++)
|
||
|
unregister_framebuffer(fbdev->fb_info[i]);
|
||
|
case 7:
|
||
|
omapfb_unregister_sysfs(fbdev);
|
||
|
case 6:
|
||
|
if (fbdev->panel->disable)
|
||
|
fbdev->panel->disable(fbdev->panel);
|
||
|
case 5:
|
||
|
omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED);
|
||
|
case 4:
|
||
|
planes_cleanup(fbdev);
|
||
|
case 3:
|
||
|
ctrl_cleanup(fbdev);
|
||
|
case 2:
|
||
|
if (fbdev->panel->cleanup)
|
||
|
fbdev->panel->cleanup(fbdev->panel);
|
||
|
case 1:
|
||
|
dev_set_drvdata(fbdev->dev, NULL);
|
||
|
kfree(fbdev);
|
||
|
case 0:
|
||
|
/* nothing to free */
|
||
|
break;
|
||
|
default:
|
||
|
BUG();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static int omapfb_find_ctrl(struct omapfb_device *fbdev)
|
||
|
{
|
||
|
struct omapfb_platform_data *conf;
|
||
|
char name[17];
|
||
|
int i;
|
||
|
|
||
|
conf = dev_get_platdata(fbdev->dev);
|
||
|
|
||
|
fbdev->ctrl = NULL;
|
||
|
|
||
|
strncpy(name, conf->lcd.ctrl_name, sizeof(name) - 1);
|
||
|
name[sizeof(name) - 1] = '\0';
|
||
|
|
||
|
if (strcmp(name, "internal") == 0) {
|
||
|
fbdev->ctrl = fbdev->int_ctrl;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
for (i = 0; i < ARRAY_SIZE(ctrls); i++) {
|
||
|
dev_dbg(fbdev->dev, "ctrl %s\n", ctrls[i]->name);
|
||
|
if (strcmp(ctrls[i]->name, name) == 0) {
|
||
|
fbdev->ctrl = ctrls[i];
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (fbdev->ctrl == NULL) {
|
||
|
dev_dbg(fbdev->dev, "ctrl %s not supported\n", name);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* Called by LDM binding to probe and attach a new device.
|
||
|
* Initialization sequence:
|
||
|
* 1. allocate system omapfb_device structure
|
||
|
* 2. select controller type according to platform configuration
|
||
|
* init LCD panel
|
||
|
* 3. init LCD controller and LCD DMA
|
||
|
* 4. init system fb_info structure for all planes
|
||
|
* 5. setup video mode for first plane and enable it
|
||
|
* 6. enable LCD panel
|
||
|
* 7. register sysfs attributes
|
||
|
* OMAPFB_ACTIVE: register system fb_info structure for all planes
|
||
|
*/
|
||
|
static int omapfb_do_probe(struct platform_device *pdev,
|
||
|
struct lcd_panel *panel)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = NULL;
|
||
|
int init_state;
|
||
|
unsigned long phz, hhz, vhz;
|
||
|
unsigned long vram;
|
||
|
int i;
|
||
|
int r = 0;
|
||
|
|
||
|
init_state = 0;
|
||
|
|
||
|
if (pdev->num_resources != 0) {
|
||
|
dev_err(&pdev->dev, "probed for an unknown device\n");
|
||
|
r = -ENODEV;
|
||
|
goto cleanup;
|
||
|
}
|
||
|
|
||
|
if (dev_get_platdata(&pdev->dev) == NULL) {
|
||
|
dev_err(&pdev->dev, "missing platform data\n");
|
||
|
r = -ENOENT;
|
||
|
goto cleanup;
|
||
|
}
|
||
|
|
||
|
fbdev = kzalloc(sizeof(struct omapfb_device), GFP_KERNEL);
|
||
|
if (fbdev == NULL) {
|
||
|
dev_err(&pdev->dev,
|
||
|
"unable to allocate memory for device info\n");
|
||
|
r = -ENOMEM;
|
||
|
goto cleanup;
|
||
|
}
|
||
|
init_state++;
|
||
|
|
||
|
fbdev->dev = &pdev->dev;
|
||
|
fbdev->panel = panel;
|
||
|
fbdev->dssdev = &omapdss_device;
|
||
|
platform_set_drvdata(pdev, fbdev);
|
||
|
|
||
|
mutex_init(&fbdev->rqueue_mutex);
|
||
|
|
||
|
fbdev->int_ctrl = &omap1_int_ctrl;
|
||
|
#ifdef CONFIG_FB_OMAP_LCDC_EXTERNAL
|
||
|
fbdev->ext_if = &omap1_ext_if;
|
||
|
#endif
|
||
|
if (omapfb_find_ctrl(fbdev) < 0) {
|
||
|
dev_err(fbdev->dev,
|
||
|
"LCD controller not found, board not supported\n");
|
||
|
r = -ENODEV;
|
||
|
goto cleanup;
|
||
|
}
|
||
|
|
||
|
if (fbdev->panel->init) {
|
||
|
r = fbdev->panel->init(fbdev->panel, fbdev);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
}
|
||
|
|
||
|
pr_info("omapfb: configured for panel %s\n", fbdev->panel->name);
|
||
|
|
||
|
def_vxres = def_vxres ? def_vxres : fbdev->panel->x_res;
|
||
|
def_vyres = def_vyres ? def_vyres : fbdev->panel->y_res;
|
||
|
|
||
|
init_state++;
|
||
|
|
||
|
r = ctrl_init(fbdev);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
if (fbdev->ctrl->mmap != NULL)
|
||
|
omapfb_ops.fb_mmap = omapfb_mmap;
|
||
|
init_state++;
|
||
|
|
||
|
r = planes_init(fbdev);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
init_state++;
|
||
|
|
||
|
#ifdef CONFIG_FB_OMAP_DMA_TUNE
|
||
|
/* Set DMA priority for EMIFF access to highest */
|
||
|
omap_set_dma_priority(0, OMAP_DMA_PORT_EMIFF, 15);
|
||
|
#endif
|
||
|
|
||
|
r = ctrl_change_mode(fbdev->fb_info[0]);
|
||
|
if (r) {
|
||
|
dev_err(fbdev->dev, "mode setting failed\n");
|
||
|
goto cleanup;
|
||
|
}
|
||
|
|
||
|
/* GFX plane is enabled by default */
|
||
|
r = fbdev->ctrl->enable_plane(OMAPFB_PLANE_GFX, 1);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
|
||
|
omapfb_set_update_mode(fbdev, manual_update ?
|
||
|
OMAPFB_MANUAL_UPDATE : OMAPFB_AUTO_UPDATE);
|
||
|
init_state++;
|
||
|
|
||
|
if (fbdev->panel->enable) {
|
||
|
r = fbdev->panel->enable(fbdev->panel);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
}
|
||
|
init_state++;
|
||
|
|
||
|
r = omapfb_register_sysfs(fbdev);
|
||
|
if (r)
|
||
|
goto cleanup;
|
||
|
init_state++;
|
||
|
|
||
|
vram = 0;
|
||
|
for (i = 0; i < fbdev->mem_desc.region_cnt; i++) {
|
||
|
r = register_framebuffer(fbdev->fb_info[i]);
|
||
|
if (r != 0) {
|
||
|
dev_err(fbdev->dev,
|
||
|
"registering framebuffer %d failed\n", i);
|
||
|
goto cleanup;
|
||
|
}
|
||
|
vram += fbdev->mem_desc.region[i].size;
|
||
|
}
|
||
|
|
||
|
fbdev->state = OMAPFB_ACTIVE;
|
||
|
|
||
|
panel = fbdev->panel;
|
||
|
phz = panel->pixel_clock * 1000;
|
||
|
hhz = phz * 10 / (panel->hfp + panel->x_res + panel->hbp + panel->hsw);
|
||
|
vhz = hhz / (panel->vfp + panel->y_res + panel->vbp + panel->vsw);
|
||
|
|
||
|
omapfb_dev = fbdev;
|
||
|
|
||
|
pr_info("omapfb: Framebuffer initialized. Total vram %lu planes %d\n",
|
||
|
vram, fbdev->mem_desc.region_cnt);
|
||
|
pr_info("omapfb: Pixclock %lu kHz hfreq %lu.%lu kHz "
|
||
|
"vfreq %lu.%lu Hz\n",
|
||
|
phz / 1000, hhz / 10000, hhz % 10, vhz / 10, vhz % 10);
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
cleanup:
|
||
|
omapfb_free_resources(fbdev, init_state);
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
static int omapfb_probe(struct platform_device *pdev)
|
||
|
{
|
||
|
int r;
|
||
|
|
||
|
BUG_ON(fbdev_pdev != NULL);
|
||
|
|
||
|
r = platform_device_register(&omapdss_device);
|
||
|
if (r) {
|
||
|
dev_err(&pdev->dev, "can't register omapdss device\n");
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
/* Delay actual initialization until the LCD is registered */
|
||
|
fbdev_pdev = pdev;
|
||
|
if (fbdev_panel != NULL)
|
||
|
omapfb_do_probe(fbdev_pdev, fbdev_panel);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void omapfb_register_panel(struct lcd_panel *panel)
|
||
|
{
|
||
|
BUG_ON(fbdev_panel != NULL);
|
||
|
|
||
|
fbdev_panel = panel;
|
||
|
if (fbdev_pdev != NULL)
|
||
|
omapfb_do_probe(fbdev_pdev, fbdev_panel);
|
||
|
}
|
||
|
EXPORT_SYMBOL_GPL(omapfb_register_panel);
|
||
|
|
||
|
/* Called when the device is being detached from the driver */
|
||
|
static int omapfb_remove(struct platform_device *pdev)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = platform_get_drvdata(pdev);
|
||
|
enum omapfb_state saved_state = fbdev->state;
|
||
|
|
||
|
/* FIXME: wait till completion of pending events */
|
||
|
|
||
|
fbdev->state = OMAPFB_DISABLED;
|
||
|
omapfb_free_resources(fbdev, saved_state);
|
||
|
|
||
|
platform_device_unregister(&omapdss_device);
|
||
|
fbdev->dssdev = NULL;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* PM suspend */
|
||
|
static int omapfb_suspend(struct platform_device *pdev, pm_message_t mesg)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = platform_get_drvdata(pdev);
|
||
|
|
||
|
if (fbdev != NULL)
|
||
|
omapfb_blank(FB_BLANK_POWERDOWN, fbdev->fb_info[0]);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* PM resume */
|
||
|
static int omapfb_resume(struct platform_device *pdev)
|
||
|
{
|
||
|
struct omapfb_device *fbdev = platform_get_drvdata(pdev);
|
||
|
|
||
|
if (fbdev != NULL)
|
||
|
omapfb_blank(FB_BLANK_UNBLANK, fbdev->fb_info[0]);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static struct platform_driver omapfb_driver = {
|
||
|
.probe = omapfb_probe,
|
||
|
.remove = omapfb_remove,
|
||
|
.suspend = omapfb_suspend,
|
||
|
.resume = omapfb_resume,
|
||
|
.driver = {
|
||
|
.name = MODULE_NAME,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
#ifndef MODULE
|
||
|
|
||
|
/* Process kernel command line parameters */
|
||
|
static int __init omapfb_setup(char *options)
|
||
|
{
|
||
|
char *this_opt = NULL;
|
||
|
int r = 0;
|
||
|
|
||
|
pr_debug("omapfb: options %s\n", options);
|
||
|
|
||
|
if (!options || !*options)
|
||
|
return 0;
|
||
|
|
||
|
while (!r && (this_opt = strsep(&options, ",")) != NULL) {
|
||
|
if (!strncmp(this_opt, "accel", 5))
|
||
|
def_accel = 1;
|
||
|
else if (!strncmp(this_opt, "vram:", 5)) {
|
||
|
char *suffix;
|
||
|
unsigned long vram;
|
||
|
vram = (simple_strtoul(this_opt + 5, &suffix, 0));
|
||
|
switch (suffix[0]) {
|
||
|
case '\0':
|
||
|
break;
|
||
|
case 'm':
|
||
|
case 'M':
|
||
|
vram *= 1024;
|
||
|
/* Fall through */
|
||
|
case 'k':
|
||
|
case 'K':
|
||
|
vram *= 1024;
|
||
|
break;
|
||
|
default:
|
||
|
pr_debug("omapfb: invalid vram suffix %c\n",
|
||
|
suffix[0]);
|
||
|
r = -1;
|
||
|
}
|
||
|
def_vram[def_vram_cnt++] = vram;
|
||
|
}
|
||
|
else if (!strncmp(this_opt, "vxres:", 6))
|
||
|
def_vxres = simple_strtoul(this_opt + 6, NULL, 0);
|
||
|
else if (!strncmp(this_opt, "vyres:", 6))
|
||
|
def_vyres = simple_strtoul(this_opt + 6, NULL, 0);
|
||
|
else if (!strncmp(this_opt, "rotate:", 7))
|
||
|
def_rotate = (simple_strtoul(this_opt + 7, NULL, 0));
|
||
|
else if (!strncmp(this_opt, "mirror:", 7))
|
||
|
def_mirror = (simple_strtoul(this_opt + 7, NULL, 0));
|
||
|
else if (!strncmp(this_opt, "manual_update", 13))
|
||
|
manual_update = 1;
|
||
|
else {
|
||
|
pr_debug("omapfb: invalid option\n");
|
||
|
r = -1;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return r;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
/* Register both the driver and the device */
|
||
|
static int __init omapfb_init(void)
|
||
|
{
|
||
|
#ifndef MODULE
|
||
|
char *option;
|
||
|
|
||
|
if (fb_get_options("omapfb", &option))
|
||
|
return -ENODEV;
|
||
|
omapfb_setup(option);
|
||
|
#endif
|
||
|
/* Register the driver with LDM */
|
||
|
if (platform_driver_register(&omapfb_driver)) {
|
||
|
pr_debug("failed to register omapfb driver\n");
|
||
|
return -ENODEV;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void __exit omapfb_cleanup(void)
|
||
|
{
|
||
|
platform_driver_unregister(&omapfb_driver);
|
||
|
}
|
||
|
|
||
|
module_param_named(accel, def_accel, uint, 0664);
|
||
|
module_param_array_named(vram, def_vram, ulong, &def_vram_cnt, 0664);
|
||
|
module_param_named(vxres, def_vxres, long, 0664);
|
||
|
module_param_named(vyres, def_vyres, long, 0664);
|
||
|
module_param_named(rotate, def_rotate, uint, 0664);
|
||
|
module_param_named(mirror, def_mirror, uint, 0664);
|
||
|
module_param_named(manual_update, manual_update, bool, 0664);
|
||
|
|
||
|
module_init(omapfb_init);
|
||
|
module_exit(omapfb_cleanup);
|
||
|
|
||
|
MODULE_DESCRIPTION("TI OMAP framebuffer driver");
|
||
|
MODULE_AUTHOR("Imre Deak <imre.deak@nokia.com>");
|
||
|
MODULE_LICENSE("GPL");
|