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 <asm/mach-types.h>
18 #include <asm/mach/arch.h>
19 #include <asm/mach/irda.h>
20
21 #include <mach/h3xxx.h>
22
23 #include "generic.h"
24
25 /*
26 * helper for sa1100fb
27 */
h3100_lcd_power(int enable)28 static void h3100_lcd_power(int enable)
29 {
30 if (!gpio_request(H3XXX_EGPIO_LCD_ON, "LCD ON")) {
31 gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
32 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
33 gpio_free(H3XXX_EGPIO_LCD_ON);
34 } else {
35 pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
36 }
37 }
38
39
h3100_map_io(void)40 static void __init h3100_map_io(void)
41 {
42 h3xxx_map_io();
43
44 sa1100fb_lcd_power = h3100_lcd_power;
45
46 /* Older bootldrs put GPIO2-9 in alternate mode on the
47 assumption that they are used for video */
48 GAFR &= ~0x000001fb;
49 }
50
51 /*
52 * This turns the IRDA power on or off on the Compaq H3100
53 */
h3100_irda_set_power(struct device * dev,unsigned int state)54 static int h3100_irda_set_power(struct device *dev, unsigned int state)
55 {
56 gpio_set_value(H3100_GPIO_IR_ON, state);
57 return 0;
58 }
59
h3100_irda_set_speed(struct device * dev,unsigned int speed)60 static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
61 {
62 gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
63 }
64
65 static struct irda_platform_data h3100_irda_data = {
66 .set_power = h3100_irda_set_power,
67 .set_speed = h3100_irda_set_speed,
68 };
69
70 static struct gpio_default_state h3100_default_gpio[] = {
71 { H3100_GPIO_IR_ON, GPIO_MODE_OUT0, "IrDA power" },
72 { H3100_GPIO_IR_FSEL, GPIO_MODE_OUT0, "IrDA fsel" },
73 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
74 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
75 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
76 { H3100_GPIO_LCD_3V_ON, GPIO_MODE_OUT0, "LCD 3v" },
77 };
78
h3100_mach_init(void)79 static void __init h3100_mach_init(void)
80 {
81 h3xxx_init_gpio(h3100_default_gpio, ARRAY_SIZE(h3100_default_gpio));
82 h3xxx_mach_init();
83 sa11x0_register_irda(&h3100_irda_data);
84 }
85
86 MACHINE_START(H3100, "Compaq iPAQ H3100")
87 .atag_offset = 0x100,
88 .map_io = h3100_map_io,
89 .init_irq = sa1100_init_irq,
90 .timer = &sa1100_timer,
91 .init_machine = h3100_mach_init,
92 .restart = sa11x0_restart,
93 MACHINE_END
94
95