LXR linux/drivers/video/omap/lcd_ams

   1/*
   2 * Based on drivers/video/omap/lcd_inn1510.c
   3 *
   4 * LCD panel support for the Amstrad E3 (Delta) videophone.
   5 *
   6 * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
   7 *
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms of the GNU General Public License as published by the
  10 * Free Software Foundation; either version 2 of the License, or (at your
  11 * option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful, but
  14 * WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 * General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License along
  19 * with this program; if not, write to the Free Software Foundation, Inc.,
  20 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 */
  22
  23#include <linux/module.h>
  24#include <linux/platform_device.h>
  25#include <linux/io.h>
  26#include <linux/delay.h>
  27
  28#include <mach/board-ams-delta.h>
  29#include <mach/hardware.h>
  30#include <mach/omapfb.h>
  31
  32#define AMS_DELTA_DEFAULT_CONTRAST      112
  33
  34static int ams_delta_panel_init(struct lcd_panel *panel,
  35                struct omapfb_device *fbdev)
  36{
  37        return 0;
  38}
  39
  40static void ams_delta_panel_cleanup(struct lcd_panel *panel)
  41{
  42}
  43
  44static int ams_delta_panel_enable(struct lcd_panel *panel)
  45{
  46        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
  47                        AMS_DELTA_LATCH2_LCD_NDISP);
  48        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
  49                        AMS_DELTA_LATCH2_LCD_VBLEN);
  50
  51        omap_writeb(1, OMAP_PWL_CLK_ENABLE);
  52        omap_writeb(AMS_DELTA_DEFAULT_CONTRAST, OMAP_PWL_ENABLE);
  53
  54        return 0;
  55}
  56
  57static void ams_delta_panel_disable(struct lcd_panel *panel)
  58{
  59        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
  60        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
  61}
  62
  63static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
  64{
  65        return 0;
  66}
  67
  68static struct lcd_panel ams_delta_panel = {
  69        .name           = "ams-delta",
  70        .config         = 0,
  71
  72        .bpp            = 12,
  73        .data_lines     = 16,
  74        .x_res          = 480,
  75        .y_res          = 320,
  76        .pixel_clock    = 4687,
  77        .hsw            = 3,
  78        .hfp            = 1,
  79        .hbp            = 1,
  80        .vsw            = 1,
  81        .vfp            = 0,
  82        .vbp            = 0,
  83        .pcd            = 0,
  84        .acb            = 37,
  85
  86        .init           = ams_delta_panel_init,
  87        .cleanup        = ams_delta_panel_cleanup,
  88        .enable         = ams_delta_panel_enable,
  89        .disable        = ams_delta_panel_disable,
  90        .get_caps       = ams_delta_panel_get_caps,
  91};
  92
  93static int ams_delta_panel_probe(struct platform_device *pdev)
  94{
  95        omapfb_register_panel(&ams_delta_panel);
  96        return 0;
  97}
  98
  99static int ams_delta_panel_remove(struct platform_device *pdev)
 100{
 101        return 0;
 102}
 103
 104static int ams_delta_panel_suspend(struct platform_device *pdev,
 105                pm_message_t mesg)
 106{
 107        return 0;
 108}
 109
 110static int ams_delta_panel_resume(struct platform_device *pdev)
 111{
 112        return 0;
 113}
 114
 115struct platform_driver ams_delta_panel_driver = {
 116        .probe          = ams_delta_panel_probe,
 117        .remove         = ams_delta_panel_remove,
 118        .suspend        = ams_delta_panel_suspend,
 119        .resume         = ams_delta_panel_resume,
 120        .driver         = {
 121                .name   = "lcd_ams_delta",
 122                .owner  = THIS_MODULE,
 123        },
 124};
 125
 126static int ams_delta_panel_drv_init(void)
 127{
 128        return platform_driver_register(&ams_delta_panel_driver);
 129}
 130
 131static void ams_delta_panel_drv_cleanup(void)
 132{
 133        platform_driver_unregister(&ams_delta_panel_driver);
 134}
 135
 136module_init(ams_delta_panel_drv_init);
 137module_exit(ams_delta_panel_drv_cleanup);
 138