LXR linux/arch/arm/mach-sa1100/h3100.c

   1/*
   2 * Support for Compaq iPAQ H3100 handheld computer
   3 *
   4 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
   5 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 *
  11 */
  12
  13#include <linux/init.h>
  14#include <linux/kernel.h>
  15#include <linux/gpio.h>
  16
  17#include <video/sa1100fb.h>
  18
  19#include <asm/mach-types.h>
  20#include <asm/mach/arch.h>
  21#include <asm/mach/irda.h>
  22
  23#include <mach/h3xxx.h>
  24#include <mach/irqs.h>
  25
  26#include "generic.h"
  27
  28/*
  29 * helper for sa1100fb
  30 */
  31static void h3100_lcd_power(int enable)
  32{
  33        if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
  34                gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
  35                gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
  36                gpio_free(H3XXX_EGPIO_LCD_ON);
  37        } else {
  38                pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
  39        }
  40}
  41
  42static struct sa1100fb_mach_info h3100_lcd_info = {
  43        .pixclock       = 406977,       .bpp            = 4,
  44        .xres           = 320,          .yres           = 240,
  45
  46        .hsync_len      = 26,           .vsync_len      = 41,
  47        .left_margin    = 4,            .upper_margin   = 0,
  48        .right_margin   = 4,            .lower_margin   = 0,
  49
  50        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
  51        .cmap_greyscale = 1,
  52        .cmap_inverse   = 1,
  53
  54        .lccr0          = LCCR0_Mono | LCCR0_4PixMono | LCCR0_Sngl | LCCR0_Pas,
  55        .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
  56
  57        .lcd_power = h3100_lcd_power,
  58};
  59
  60static void __init h3100_map_io(void)
  61{
  62        h3xxx_map_io();
  63
  64        /* Older bootldrs put GPIO2-9 in alternate mode on the
  65           assumption that they are used for video */
  66        GAFR &= ~0x000001fb;
  67}
  68
  69/*
  70 * This turns the IRDA power on or off on the Compaq H3100
  71 */
  72static int h3100_irda_set_power(struct device *dev, unsigned int state)
  73{
  74        gpio_set_value(H3100_GPIO_IR_ON, state);
  75        return 0;
  76}
  77
  78static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
  79{
  80        gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
  81}
  82
  83static struct irda_platform_data h3100_irda_data = {
  84        .set_power      = h3100_irda_set_power,
  85        .set_speed      = h3100_irda_set_speed,
  86};
  87
  88static struct gpio_default_state h3100_default_gpio[] = {
  89        { H3100_GPIO_IR_ON,     GPIO_MODE_OUT0, "IrDA power" },
  90        { H3100_GPIO_IR_FSEL,   GPIO_MODE_OUT0, "IrDA fsel" },
  91        { H3XXX_GPIO_COM_DCD,   GPIO_MODE_IN,   "COM DCD" },
  92        { H3XXX_GPIO_COM_CTS,   GPIO_MODE_IN,   "COM CTS" },
  93        { H3XXX_GPIO_COM_RTS,   GPIO_MODE_OUT0, "COM RTS" },
  94        { H3100_GPIO_LCD_3V_ON, GPIO_MODE_OUT0, "LCD 3v" },
  95};
  96
  97static void __init h3100_mach_init(void)
  98{
  99        h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
 100        h3xxx_mach_init();
 101
 102        sa11x0_register_lcd(&h3100_lcd_info);
 103        sa11x0_register_irda(&h3100_irda_data);
 104}
 105
 106MACHINE_START(H3100, "Compaq iPAQ H3100")
 107        .atag_offset    = 0x100,
 108        .map_io         = h3100_map_io,
 109        .nr_irqs        = SA1100_NR_IRQS,
 110        .init_irq       = sa1100_init_irq,
 111        .init_time      = sa1100_timer_init,
 112        .init_machine   = h3100_mach_init,
 113        .init_late      = sa11x0_init_late,
 114        .restart        = sa11x0_restart,
 115MACHINE_END
 116
 117