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 <linux/platform_data/irda-sa11x0.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 struct gpio h3100_lcd_gpio[] = {
32	{ H3100_GPIO_LCD_3V_ON, GPIOF_OUT_INIT_LOW, "LCD 3V" },
33	{ H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD ON" },
34};
35
36static bool h3100_lcd_request(void)
37{
38	static bool h3100_lcd_ok;
39	int rc;
40
41	if (h3100_lcd_ok)
42		return true;
43
44	rc = gpio_request_array(h3100_lcd_gpio, ARRAY_SIZE(h3100_lcd_gpio));
45	if (rc)
46		pr_err("%s: can't request GPIOs\n", __func__);
47	else
48		h3100_lcd_ok = true;
49
50	return h3100_lcd_ok;
51}
52
53static void h3100_lcd_power(int enable)
54{
55	if (!h3100_lcd_request())
56		return;
57
58	gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
59	gpio_set_value(H3XXX_EGPIO_LCD_ON, enable);
60}
61
62static struct sa1100fb_mach_info h3100_lcd_info = {
63	.pixclock	= 406977, 	.bpp		= 4,
64	.xres		= 320,		.yres		= 240,
65
66	.hsync_len	= 26,		.vsync_len	= 41,
67	.left_margin	= 4,		.upper_margin	= 0,
68	.right_margin	= 4,		.lower_margin	= 0,
69
70	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
71	.cmap_greyscale	= 1,
72	.cmap_inverse	= 1,
73
74	.lccr0		= LCCR0_Mono | LCCR0_4PixMono | LCCR0_Sngl | LCCR0_Pas,
75	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
76
77	.lcd_power = h3100_lcd_power,
78};
79
80static void __init h3100_map_io(void)
81{
82	h3xxx_map_io();
83
84	/* Older bootldrs put GPIO2-9 in alternate mode on the
85	   assumption that they are used for video */
86	GAFR &= ~0x000001fb;
87}
88
89/*
90 * This turns the IRDA power on or off on the Compaq H3100
91 */
92static struct gpio h3100_irda_gpio[] = {
93	{ H3100_GPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
94	{ H3100_GPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
95};
96
97static int h3100_irda_set_power(struct device *dev, unsigned int state)
98{
99	gpio_set_value(H3100_GPIO_IR_ON, state);
100	return 0;
101}
102
103static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
104{
105	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
106}
107
108static int h3100_irda_startup(struct device *dev)
109{
110	return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
111}
112
113static void h3100_irda_shutdown(struct device *dev)
114{
115	return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
116}
117
118static struct irda_platform_data h3100_irda_data = {
119	.set_power	= h3100_irda_set_power,
120	.set_speed	= h3100_irda_set_speed,
121	.startup	= h3100_irda_startup,
122	.shutdown	= h3100_irda_shutdown,
123};
124
125static void __init h3100_mach_init(void)
126{
127	h3xxx_mach_init();
128
129	sa11x0_register_lcd(&h3100_lcd_info);
130	sa11x0_register_irda(&h3100_irda_data);
131}
132
133MACHINE_START(H3100, "Compaq iPAQ H3100")
134	.atag_offset	= 0x100,
135	.map_io		= h3100_map_io,
136	.nr_irqs	= SA1100_NR_IRQS,
137	.init_irq	= sa1100_init_irq,
138	.init_time	= sa1100_timer_init,
139	.init_machine	= h3100_mach_init,
140	.init_late	= sa11x0_init_late,
141	.restart	= sa11x0_restart,
142MACHINE_END
143
144