Commit 644f2639 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here, few small fixes, some cleanups and
  dead drivers removal:

   - mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)

   - add missing module license tags to omap/omapfb driver (Arnd
     Bergmann)

   - add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd
     Bergmann)

   - convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
     (Jia-Ju Bai)

   - allow COMPILE_TEST build for viafb driver (media part was reviewed
     by media subsystem Maintainer)

   - remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm
     drivers (drm parts were acked by shmob-drm driver Maintainer)

   - remove unused auo_k190xfb drivers

   - misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
     Shevchenko, Colin Ian King)"

* tag 'fbdev-v4.18' of git://github.com/bzolnier/linux: (26 commits)
  fb_omap2: add gpiolib dependency
  video/omap: add module license tags
  MAINTAINERS: make omapfb orphan
  video: fbdev: pxafb: match_string() conversion fixup
  video: fbdev: nvidia: fix spelling mistake: "scaleing" -> "scaling"
  video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
  video: fbdev: pxafb: Convert to use match_string() helper
  video: fbdev: via: allow COMPILE_TEST build
  video: fbdev: remove unused sh_mobile_meram driver
  drm: shmobile: remove unused MERAM support
  video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
  video: fbdev: remove unused auo_k190xfb drivers
  video: omap: Improve a size determination in omapfb_do_probe()
  video: sm501fb: Improve a size determination in sm501fb_probe()
  video: fbdev-MMP: Improve a size determination in path_init()
  video: fbdev-MMP: Delete an error message for a failed memory allocation in two functions
  video: auo_k190x: Delete an error message for a failed memory allocation in auok190x_common_probe()
  video: sh_mobile_lcdcfb: Delete an error message for a failed memory allocation in two functions
  video: sh_mobile_meram: Delete an error message for a failed memory allocation in sh_mobile_meram_probe()
  video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency
  ...
parents 35773c93 85ebd164
......@@ -10273,18 +10273,16 @@ F: arch/arm/boot/dts/*am5*
F: arch/arm/boot/dts/*dra7*
OMAP DISPLAY SUBSYSTEM and FRAMEBUFFER SUPPORT (DSS2)
M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: linux-omap@vger.kernel.org
L: linux-fbdev@vger.kernel.org
S: Maintained
S: Orphan
F: drivers/video/fbdev/omap2/
F: Documentation/arm/OMAP/DSS
OMAP FRAMEBUFFER SUPPORT
M: Tomi Valkeinen <tomi.valkeinen@ti.com>
L: linux-fbdev@vger.kernel.org
L: linux-omap@vger.kernel.org
S: Maintained
S: Orphan
F: drivers/video/fbdev/omap/
OMAP GENERAL PURPOSE MEMORY CONTROLLER SUPPORT
......
......@@ -2,7 +2,6 @@ config DRM_SHMOBILE
tristate "DRM Support for SH Mobile"
depends on DRM && ARM
depends on ARCH_SHMOBILE || COMPILE_TEST
depends on FB_SH_MOBILE_MERAM || !FB_SH_MOBILE_MERAM
select BACKLIGHT_CLASS_DEVICE
select BACKLIGHT_LCD_SUPPORT
select DRM_KMS_HELPER
......
......@@ -21,8 +21,6 @@
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_plane_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_backlight.h"
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
......@@ -47,20 +45,12 @@ static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
if (ret < 0)
return ret;
}
#if 0
if (sdev->meram_dev && sdev->meram_dev->pdev)
pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
#endif
return 0;
}
static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
{
#if 0
if (sdev->meram_dev && sdev->meram_dev->pdev)
pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
#endif
if (sdev->clock)
clk_disable_unprepare(sdev->clock);
}
......@@ -269,12 +259,6 @@ static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc)
if (!scrtc->started)
return;
/* Disable the MERAM cache. */
if (scrtc->cache) {
sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
scrtc->cache = NULL;
}
/* Stop the LCDC. */
shmob_drm_crtc_start_stop(scrtc, false);
......@@ -305,7 +289,6 @@ static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
{
struct drm_crtc *crtc = &scrtc->crtc;
struct drm_framebuffer *fb = crtc->primary->fb;
struct shmob_drm_device *sdev = crtc->dev->dev_private;
struct drm_gem_cma_object *gem;
unsigned int bpp;
......@@ -321,11 +304,6 @@ static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc,
+ y / (bpp == 4 ? 2 : 1) * fb->pitches[1]
+ x * (bpp == 16 ? 2 : 1);
}
if (scrtc->cache)
sh_mobile_meram_cache_update(sdev->meram, scrtc->cache,
scrtc->dma[0], scrtc->dma[1],
&scrtc->dma[0], &scrtc->dma[1]);
}
static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc)
......@@ -372,9 +350,7 @@ static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
{
struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
struct shmob_drm_device *sdev = crtc->dev->dev_private;
const struct sh_mobile_meram_cfg *mdata = sdev->pdata->meram;
const struct shmob_drm_format_info *format;
void *cache;
format = shmob_drm_format_info(crtc->primary->fb->format->format);
if (format == NULL) {
......@@ -386,24 +362,6 @@ static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc,
scrtc->format = format;
scrtc->line_size = crtc->primary->fb->pitches[0];
if (sdev->meram) {
/* Enable MERAM cache if configured. We need to de-init
* configured ICBs before we can re-initialize them.
*/
if (scrtc->cache) {
sh_mobile_meram_cache_free(sdev->meram, scrtc->cache);
scrtc->cache = NULL;
}
cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
crtc->primary->fb->pitches[0],
adjusted_mode->vdisplay,
format->meram,
&scrtc->line_size);
if (!IS_ERR(cache))
scrtc->cache = cache;
}
shmob_drm_crtc_compute_base(scrtc, x, y);
return 0;
......
......@@ -28,7 +28,6 @@ struct shmob_drm_crtc {
int dpms;
const struct shmob_drm_format_info *format;
void *cache;
unsigned long dma[2];
unsigned int line_size;
bool started;
......
......@@ -23,7 +23,6 @@
struct clk;
struct device;
struct drm_device;
struct sh_mobile_meram_info;
struct shmob_drm_device {
struct device *dev;
......@@ -31,7 +30,6 @@ struct shmob_drm_device {
void __iomem *mmio;
struct clk *clock;
struct sh_mobile_meram_info *meram;
u32 lddckr;
u32 ldmt1r;
......
......@@ -18,8 +18,6 @@
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_crtc.h"
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
......@@ -35,55 +33,46 @@ static const struct shmob_drm_format_info shmob_drm_format_infos[] = {
.bpp = 16,
.yuv = false,
.lddfr = LDDFR_PKF_RGB16,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_RGB888,
.bpp = 24,
.yuv = false,
.lddfr = LDDFR_PKF_RGB24,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_ARGB8888,
.bpp = 32,
.yuv = false,
.lddfr = LDDFR_PKF_ARGB32,
.meram = SH_MOBILE_MERAM_PF_RGB,
}, {
.fourcc = DRM_FORMAT_NV12,
.bpp = 12,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_420,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV21,
.bpp = 12,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_420,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV16,
.bpp = 16,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_422,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV61,
.bpp = 16,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_422,
.meram = SH_MOBILE_MERAM_PF_NV,
}, {
.fourcc = DRM_FORMAT_NV24,
.bpp = 24,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_444,
.meram = SH_MOBILE_MERAM_PF_NV24,
}, {
.fourcc = DRM_FORMAT_NV42,
.bpp = 24,
.yuv = true,
.lddfr = LDDFR_CC | LDDFR_YF_444,
.meram = SH_MOBILE_MERAM_PF_NV24,
},
};
......
......@@ -24,7 +24,6 @@ struct shmob_drm_format_info {
unsigned int bpp;
bool yuv;
u32 lddfr;
unsigned int meram;
};
const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc);
......
......@@ -17,8 +17,6 @@
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <video/sh_mobile_meram.h>
#include "shmob_drm_drv.h"
#include "shmob_drm_kms.h"
#include "shmob_drm_plane.h"
......
......@@ -27,7 +27,12 @@
#include <linux/via-core.h>
#include <linux/via-gpio.h>
#include <linux/via_i2c.h>
#ifdef CONFIG_X86
#include <asm/olpc.h>
#else
#define machine_is_olpc(x) 0
#endif
#include "via-camera.h"
......
......@@ -1437,7 +1437,7 @@ config FB_SIS_315
config FB_VIA
tristate "VIA UniChrome (Pro) and Chrome9 display support"
depends on FB && PCI && X86 && GPIOLIB && I2C
depends on FB && PCI && GPIOLIB && I2C && (X86 || COMPILE_TEST)
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
......@@ -1888,7 +1888,6 @@ config FB_W100
config FB_SH_MOBILE_LCDC
tristate "SuperH Mobile LCDC framebuffer support"
depends on FB && (SUPERH || ARCH_RENESAS) && HAVE_CLK
depends on FB_SH_MOBILE_MERAM || !FB_SH_MOBILE_MERAM
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
......@@ -2253,39 +2252,6 @@ config FB_BROADSHEET
and could also have been called by other names when coupled with
a bridge adapter.
config FB_AUO_K190X
tristate "AUO-K190X EPD controller support"
depends on FB
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
select FB_SYS_FOPS
select FB_DEFERRED_IO
help
Provides support for epaper controllers from the K190X series
of AUO. These controllers can be used to drive epaper displays
from Sipix.
This option enables the common support, shared by the individual
controller drivers. You will also have to enable the driver
for the controller type used in your device.
config FB_AUO_K1900
tristate "AUO-K1900 EPD controller support"
depends on FB && FB_AUO_K190X
help
This driver implements support for the AUO K1900 epd-controller.
This controller can drive Sipix epaper displays but can only do
serial updates, reducing the number of possible frames per second.
config FB_AUO_K1901
tristate "AUO-K1901 EPD controller support"
depends on FB && FB_AUO_K190X
help
This driver implements support for the AUO K1901 epd-controller.
This controller can drive Sipix epaper displays and supports
concurrent updates, making higher frames per second possible.
config FB_JZ4740
tristate "JZ4740 LCD framebuffer support"
depends on FB && MACH_JZ4740
......@@ -2346,18 +2312,6 @@ source "drivers/video/fbdev/omap/Kconfig"
source "drivers/video/fbdev/omap2/Kconfig"
source "drivers/video/fbdev/mmp/Kconfig"
config FB_SH_MOBILE_MERAM
tristate "SuperH Mobile MERAM read ahead support"
depends on (SUPERH || ARCH_SHMOBILE)
select GENERIC_ALLOCATOR
---help---
Enable MERAM support for the SuperH controller.
This will allow for caching of the framebuffer to provide more
reliable access under heavy main memory bus traffic situations.
Up to 4 memory channels can be configured, allowing 4 RGB or
2 YCbCr framebuffers to be configured.
config FB_SSD1307
tristate "Solomon SSD1307 framebuffer support"
depends on FB && I2C
......
......@@ -100,9 +100,6 @@ obj-$(CONFIG_FB_PMAGB_B) += pmagb-b-fb.o
obj-$(CONFIG_FB_MAXINE) += maxinefb.o
obj-$(CONFIG_FB_METRONOME) += metronomefb.o
obj-$(CONFIG_FB_BROADSHEET) += broadsheetfb.o
obj-$(CONFIG_FB_AUO_K190X) += auo_k190x.o
obj-$(CONFIG_FB_AUO_K1900) += auo_k1900fb.o
obj-$(CONFIG_FB_AUO_K1901) += auo_k1901fb.o
obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o
obj-$(CONFIG_FB_SH7760) += sh7760fb.o
obj-$(CONFIG_FB_IMX) += imxfb.o
......@@ -116,7 +113,6 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o
obj-$(CONFIG_FB_UDL) += udlfb.o
obj-$(CONFIG_FB_SMSCUFX) += smscufx.o
obj-$(CONFIG_FB_XILINX) += xilinxfb.o
obj-$(CONFIG_FB_SH_MOBILE_MERAM) += sh_mobile_meram.o
obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
obj-$(CONFIG_FB_OMAP) += omap/
obj-y += omap2/
......
......@@ -2442,7 +2442,7 @@ static void aty128_set_suspend(struct aty128fb_par *par, int suspend)
(void)aty_ld_pll(POWER_MANAGEMENT);
aty_st_le32(BUS_CNTL1, 0x00000010);
aty_st_le32(MEM_POWER_MISC, 0x0c830000);
mdelay(100);
msleep(100);
/* Switch PCI power management to D2 */
pci_set_power_state(pdev, PCI_D2);
......
......@@ -2678,17 +2678,17 @@ int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t mesg)
* it, we'll restore the dynamic clocks state on wakeup
*/
radeon_pm_disable_dynamic_mode(rinfo);
mdelay(50);
msleep(50);
radeon_pm_save_regs(rinfo, 1);
if (rinfo->is_mobility && !(rinfo->pm_mode & radeon_pm_d2)) {
/* Switch off LVDS interface */
mdelay(1);
usleep_range(1000, 2000);
OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_BL_MOD_EN));
mdelay(1);
usleep_range(1000, 2000);
OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_EN | LVDS_ON));
OUTREG(LVDS_PLL_CNTL, (INREG(LVDS_PLL_CNTL) & ~30000) | 0x20000);
mdelay(20);
msleep(20);
OUTREG(LVDS_GEN_CNTL, INREG(LVDS_GEN_CNTL) & ~(LVDS_DIGON));
}
pci_disable_device(pdev);
......
......@@ -464,7 +464,7 @@ static int au1100fb_drv_probe(struct platform_device *dev)
PAGE_ALIGN(fbdev->fb_len),
&fbdev->fb_phys, GFP_KERNEL);
if (!fbdev->fb_mem) {
print_err("fail to allocate frambuffer (size: %dK))",
print_err("fail to allocate framebuffer (size: %dK))",
fbdev->fb_len / 1024);
return -ENOMEM;
}
......
......@@ -1696,7 +1696,7 @@ static int au1200fb_drv_probe(struct platform_device *dev)
&fbdev->fb_phys, GFP_KERNEL,
DMA_ATTR_NON_CONSISTENT);
if (!fbdev->fb_mem) {
print_err("fail to allocate frambuffer (size: %dK))",
print_err("fail to allocate framebuffer (size: %dK))",
fbdev->fb_len / 1024);
ret = -ENOMEM;
goto failed;
......
/*
* auok190xfb.c -- FB driver for AUO-K1900 controllers
*
* Copyright (C) 2011, 2012 Heiko Stuebner <heiko@sntech.de>
*
* based on broadsheetfb.c
*
* Copyright (C) 2008, Jaya Kumar
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
*
* This driver is written to be used with the AUO-K1900 display controller.
*
* It is intended to be architecture independent. A board specific driver
* must be used to perform all the physical IO interactions.
*
* The controller supports different update modes:
* mode0+1 16 step gray (4bit)
* mode2 4 step gray (2bit) - FIXME: add strange refresh
* mode3 2 step gray (1bit) - FIXME: add strange refresh
* mode4 handwriting mode (strange behaviour)
* mode5 automatic selection of update mode
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/list.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <linux/pm_runtime.h>
#include <video/auo_k190xfb.h>
#include "auo_k190x.h"
/*
* AUO-K1900 specific commands
*/
#define AUOK1900_CMD_PARTIALDISP 0x1001
#define AUOK1900_CMD_ROTATION 0x1006
#define AUOK1900_CMD_LUT_STOP 0x1009
#define AUOK1900_INIT_TEMP_AVERAGE (1 << 13)
#define AUOK1900_INIT_ROTATE(_x) ((_x & 0x3) << 10)
#define AUOK1900_INIT_RESOLUTION(_res) ((_res & 0x7) << 2)
static void auok1900_init(struct auok190xfb_par *par)
{
struct device *dev = par->info->device;
struct auok190x_board *board = par->board;
u16 init_param = 0;
pm_runtime_get_sync(dev);
init_param |= AUOK1900_INIT_TEMP_AVERAGE;
init_param |= AUOK1900_INIT_ROTATE(par->rotation);
init_param |= AUOK190X_INIT_INVERSE_WHITE;
init_param |= AUOK190X_INIT_FORMAT0;
init_param |= AUOK1900_INIT_RESOLUTION(par->resolution);
init_param |= AUOK190X_INIT_SHIFT_RIGHT;
auok190x_send_cmdargs(par, AUOK190X_CMD_INIT, 1, &init_param);
/* let the controller finish */
board->wait_for_rdy(par);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1900_update_region(struct auok190xfb_par *par, int mode,
u16 y1, u16 y2)
{
struct device *dev = par->info->device;
unsigned char *buf = (unsigned char *)par->info->screen_base;
int xres = par->info->var.xres;
int line_length = par->info->fix.line_length;
u16 args[4];
pm_runtime_get_sync(dev);
mutex_lock(&(par->io_lock));
/* y1 and y2 must be a multiple of 2 so drop the lowest bit */
y1 &= 0xfffe;
y2 &= 0xfffe;
dev_dbg(dev, "update (x,y,w,h,mode)=(%d,%d,%d,%d,%d)\n",
1, y1+1, xres, y2-y1, mode);
/* to FIX handle different partial update modes */
args[0] = mode | 1;
args[1] = y1 + 1;
args[2] = xres;
args[3] = y2 - y1;
buf += y1 * line_length;
auok190x_send_cmdargs_pixels(par, AUOK1900_CMD_PARTIALDISP, 4, args,
((y2 - y1) * line_length)/2, (u16 *) buf);
auok190x_send_command(par, AUOK190X_CMD_DATA_STOP);
par->update_cnt++;
mutex_unlock(&(par->io_lock));
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
static void auok1900fb_dpy_update_pages(struct auok190xfb_par *par,
u16 y1, u16 y2)
{
int mode;
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(1);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1900_update_region(par, mode, y1, y2);
}
static void auok1900fb_dpy_update(struct auok190xfb_par *par)
{
int mode;
if (par->update_mode < 0) {
mode = AUOK190X_UPDATE_MODE(0);
par->last_mode = -1;
} else {
mode = AUOK190X_UPDATE_MODE(par->update_mode);
par->last_mode = par->update_mode;
}
if (par->flash)
mode |= AUOK190X_UPDATE_NONFLASH;
auok1900_update_region(par, mode, 0, par->info->var.yres);
par->update_cnt = 0;
}
static bool auok1900fb_need_refresh(struct auok190xfb_par *par)
{
return (par->update_cnt > 10);
}
static int auok1900fb_probe(struct platform_device *pdev)
{
struct auok190x_init_data init;
struct auok190x_board *board;
/* pick up board specific routines */
board = pdev->dev.platform_data;
if (!board)
return -EINVAL;
/* fill temporary init struct for common init */
init.id = "auo_k1900fb";
init.board = board;
init.update_partial = auok1900fb_dpy_update_pages;
init.update_all = auok1900fb_dpy_update;
init.need_refresh = auok1900fb_need_refresh;
init.init = auok1900_init;
return auok190x_common_probe(pdev, &init);
}
static int auok1900fb_remove(struct platform_device *pdev)
{
return auok190x_common_remove(pdev);
}
static struct platform_driver auok1900fb_driver = {
.probe = auok1900fb_probe,
.remove = auok1900fb_remove,
.driver = {
.name = "auo_k1900fb",
.pm = &auok190x_pm,
},
};
module_platform_driver(auok1900fb_driver);
MODULE_DESCRIPTION("framebuffer driver for the AUO-K1900 EPD controller");
MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
MODULE_LICENSE("GPL");
/*
* auok190xfb.c -- FB driver for AUO-K1901 controllers
*
* Copyright (C) 2011, 2012 Heiko Stuebner <heiko@sntech.de>
*
* based on broadsheetfb.c
*
* Copyright (C) 2008, Jaya Kumar
*
* This program is free software; you can redistribute it and/or modify