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#891969
/*
* File: drivers/video/omap_new/lcd-htcartemis.c
*
* LCD panel support for the HTC htcartemis phone
*
* Authors:
* Thomas Cougnard <tgnard@free.fr>
* Vivien Chappelier <vivien.chappelier@free.fr>
*
* Based on the lcd_p2.c file
*
* 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/module.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>
#include <asm/arch/omapfb.h>
#include <asm/arch/htcartemis-gpio.h>
/* htcartemis panels */
#define LCD_ID_SONY 1
#define LCD_ID_TOPPOLY 3
/* Backlight */
#define BKLIGHT_OFF 0
#define BKLIGHT_DIM 1
#define BKLIGHT_FULL 2
static int bklight_level = BKLIGHT_FULL;
static int htcartemis_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
{
return 0;
}
static void htcartemis_panel_cleanup(struct lcd_panel *panel)
{
}
static int htcartemis_panel_enable(struct lcd_panel *panel)
{
return 0;
}
static void htcartemis_panel_disable(struct lcd_panel *panel)
{
}
static unsigned long htcartemis_panel_get_caps(struct lcd_panel *panel)
{
return 0;
}
static int htcartemis_set_bklight_level(struct lcd_panel *panel,
unsigned int level)
{
if(level > 2)
return(-EINVAL);
bklight_level = level;
omap_set_gpio_direction(HTCARTEMIS_GPIO_LCD_BACKLIGHT_ON, 0);
omap_set_gpio_direction(HTCARTEMIS_GPIO_LCD_BACKLIGHT_INTENSITY, 0);
if(level > 0)
omap_set_gpio_dataout(HTCARTEMIS_GPIO_LCD_BACKLIGHT_ON, 1);
else
omap_set_gpio_dataout(HTCARTEMIS_GPIO_LCD_BACKLIGHT_ON, 0);
if(level > 1)
omap_set_gpio_dataout(HTCARTEMIS_GPIO_LCD_BACKLIGHT_INTENSITY, 1);
else
omap_set_gpio_dataout(HTCARTEMIS_GPIO_LCD_BACKLIGHT_INTENSITY, 0);
return(0);
}
static unsigned int htcartemis_get_bklight_level(struct lcd_panel *panel)
{
return(bklight_level);
}
static unsigned int htcartemis_get_bklight_max(struct lcd_panel *panel)
{
return(BKLIGHT_FULL);
}
/* htcartemis panels */
static struct lcd_panel htcartemis_toppoly_panel = {
.name = "htcartemis-toppoly",
.x_res = 240,
.y_res = 320,
.config = OMAP_LCDC_PANEL_TFT |
OMAP_LCDC_INV_VSYNC |
OMAP_LCDC_INV_HSYNC |
OMAP_LCDC_HSVS_OPPOSITE,
.pixel_clock = 5500,
.hsw = 10,
.hfp = 10,
.hbp = 20,
.vsw = 2,
.vfp = 2,
.vbp = 3,
};
static struct lcd_panel htcartemis_sony_panel = {
.name = "htcartemis-sony",
.x_res = 240,
.y_res = 320,
.config = OMAP_LCDC_PANEL_TFT |
OMAP_LCDC_INV_VSYNC |
OMAP_LCDC_INV_HSYNC |
OMAP_LCDC_HSVS_RISING_EDGE |
OMAP_LCDC_HSVS_OPPOSITE,
.pixel_clock = 5000,
.hsw = 2,
.hfp = 8,
.hbp = 14,
.vsw = 2,
.vfp = 4,
.vbp = 2,
};
/* get the panel identifier */
static unsigned int htcartemis_lcd_identify(void)
{
omap_set_gpio_direction(HTCARTEMIS_GPIO_PANEL_ID0, 1);
omap_set_gpio_direction(HTCARTEMIS_GPIO_PANEL_ID1, 1);
return (omap_get_gpio_datain(HTCARTEMIS_GPIO_PANEL_ID1) << 1) |
omap_get_gpio_datain(HTCARTEMIS_GPIO_PANEL_ID0);
}
struct panel_id {
unsigned int lcd_id;
struct lcd_panel *panel;
};
struct panel_id htcartemis_lcd_panel[] = {
{ LCD_ID_TOPPOLY,
&htcartemis_toppoly_panel },
{ LCD_ID_SONY,
&htcartemis_sony_panel },
};
static struct lcd_panel *htcartemis_lcd_find_panel(struct platform_device *pdev)
{
struct lcd_panel *panel;
unsigned int lcd_id;
int i;
lcd_id = htcartemis_lcd_identify();
panel = NULL;
for (i = 0; i < ARRAY_SIZE(htcartemis_lcd_panel); i++) {
if ( htcartemis_lcd_panel[i].lcd_id == lcd_id)
return htcartemis_lcd_panel[i].panel;
}
printk(KERN_ERR "lcd-htcartemis: unknown panel (%d)\n",
lcd_id);
return NULL;
}
static int htcartemis_panel_probe(struct platform_device *pdev)
{
struct lcd_panel *panel;
/* set the timings according to the panel type */
if ((panel = htcartemis_lcd_find_panel(pdev)) == NULL) {
return -ENODEV;
}
panel->bpp = 16;
panel->data_lines = 16;
/* common callbacks */
panel->init = htcartemis_panel_init;
panel->cleanup = htcartemis_panel_cleanup;
panel->enable = htcartemis_panel_enable;
panel->disable = htcartemis_panel_disable;
panel->get_caps= htcartemis_panel_get_caps;
panel->set_bklight_level = htcartemis_set_bklight_level;
panel->get_bklight_level = htcartemis_get_bklight_level;
panel->get_bklight_max = htcartemis_get_bklight_max;
omapfb_register_panel(panel);
return 0;
}
static int htcartemis_panel_remove(struct platform_device *pdev)
{
return 0;
}
static int htcartemis_panel_suspend(struct platform_device *pdev,
pm_message_t mesg)
{
return 0;
}
static int htcartemis_panel_resume(struct platform_device *pdev)
{
return 0;
}
struct platform_driver htcartemis_panel_driver = {
.probe = htcartemis_panel_probe,
.remove = htcartemis_panel_remove,
.suspend = htcartemis_panel_suspend,
.resume = htcartemis_panel_resume,
.driver = {
.name = "lcd_htcartemis",
.owner = THIS_MODULE,
},
};
static int htcartemis_panel_drv_init(void)
{
return platform_driver_register(&htcartemis_panel_driver);
}
static void htcartemis_panel_drv_cleanup(void)
{
platform_driver_unregister(&htcartemis_panel_driver);
}
module_init(htcartemis_panel_drv_init);
module_exit(htcartemis_panel_drv_cleanup);