arch/arm/mach-sa1100/h3600.c

   1 /*
   2  * Support for Compaq iPAQ H3600 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  */
  31 static void h3600_lcd_power(int enable)
  32 {
  33         if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) {
  34                 pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
  35                 goto err1;
  36         }
  37         if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) {
  38                 pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI\n", __func__);
  39                 goto err2;
  40         }
  41         if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) {
  42                 pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON\n", __func__);
  43                 goto err3;
  44         }
  45         if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) {
  46                 pr_err("%s: can't request H3600_EGPIO_LVDD_ON\n", __func__);
  47                 goto err4;
  48         }
  49
  50         gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
  51         gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
  52         gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
  53         gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
  54
  55         gpio_free(H3600_EGPIO_LVDD_ON);
  56 err4:   gpio_free(H3600_EGPIO_LCD_5V_ON);
  57 err3:   gpio_free(H3600_EGPIO_LCD_PCI);
  58 err2:   gpio_free(H3XXX_EGPIO_LCD_ON);
  59 err1:   return;
  60 }
  61
  62 static const struct sa1100fb_rgb h3600_rgb_16 = {
  63         .red    = { .offset = 12, .length = 4, },
  64         .green  = { .offset = 7,  .length = 4, },
  65         .blue   = { .offset = 1,  .length = 4, },
  66         .transp = { .offset = 0,  .length = 0, },
  67 };
  68
  69 static struct sa1100fb_mach_info h3600_lcd_info = {
  70         .pixclock       = 174757,       .bpp            = 16,
  71         .xres           = 320,          .yres           = 240,
  72
  73         .hsync_len      = 3,            .vsync_len      = 3,
  74         .left_margin    = 12,           .upper_margin   = 10,
  75         .right_margin   = 17,           .lower_margin   = 1,
  76
  77         .cmap_static    = 1,
  78
  79         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
  80         .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
  81
  82         .rgb[RGB_16] = &h3600_rgb_16,
  83
  84         .lcd_power = h3600_lcd_power,
  85 };
  86
  87
  88 static void __init h3600_map_io(void)
  89 {
  90         h3xxx_map_io();
  91 }
  92
  93 /*
  94  * This turns the IRDA power on or off on the Compaq H3600
  95  */
  96 static int h3600_irda_set_power(struct device *dev, unsigned int state)
  97 {
  98         gpio_set_value(H3600_EGPIO_IR_ON, state);
  99         return 0;
 100 }
 101
 102 static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
 103 {
 104         gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
 105 }
 106
 107 static int h3600_irda_startup(struct device *dev)
 108 {
 109         int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power");
 110         if (err)
 111                 goto err1;
 112         err = gpio_direction_output(H3600_EGPIO_IR_ON, 0);
 113         if (err)
 114                 goto err2;
 115         err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
 116         if (err)
 117                 goto err2;
 118         err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0);
 119         if (err)
 120                 goto err3;
 121         return 0;
 122
 123 err3:   gpio_free(H3600_EGPIO_IR_FSEL);
 124 err2:   gpio_free(H3600_EGPIO_IR_ON);
 125 err1:   return err;
 126 }
 127
 128 static void h3600_irda_shutdown(struct device *dev)
 129 {
 130         gpio_free(H3600_EGPIO_IR_ON);
 131         gpio_free(H3600_EGPIO_IR_FSEL);
 132 }
 133
 134 static struct irda_platform_data h3600_irda_data = {
 135         .set_power      = h3600_irda_set_power,
 136         .set_speed      = h3600_irda_set_speed,
 137         .startup        = h3600_irda_startup,
 138         .shutdown       = h3600_irda_shutdown,
 139 };
 140
 141 static struct gpio_default_state h3600_default_gpio[] = {
 142         { H3XXX_GPIO_COM_DCD,   GPIO_MODE_IN,   "COM DCD" },
 143         { H3XXX_GPIO_COM_CTS,   GPIO_MODE_IN,   "COM CTS" },
 144         { H3XXX_GPIO_COM_RTS,   GPIO_MODE_OUT0, "COM RTS" },
 145 };
 146
 147 static void __init h3600_mach_init(void)
 148 {
 149         h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
 150         h3xxx_mach_init();
 151
 152         sa11x0_register_lcd(&h3600_lcd_info);
 153         sa11x0_register_irda(&h3600_irda_data);
 154 }
 155
 156 MACHINE_START(H3600, "Compaq iPAQ H3600")
 157         .atag_offset    = 0x100,
 158         .map_io         = h3600_map_io,
 159         .nr_irqs        = SA1100_NR_IRQS,
 160         .init_irq       = sa1100_init_irq,
 161         .init_time      = sa1100_timer_init,
 162         .init_machine   = h3600_mach_init,
 163         .init_late      = sa11x0_init_late,
 164         .restart        = sa11x0_restart,
 165 MACHINE_END
 166