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 <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 h3600_lcd_gpio[] = {
32	{ H3XXX_EGPIO_LCD_ON,	GPIOF_OUT_INIT_LOW,	"LCD power" },
33	{ H3600_EGPIO_LCD_PCI,	GPIOF_OUT_INIT_LOW,	"LCD control" },
34	{ H3600_EGPIO_LCD_5V_ON, GPIOF_OUT_INIT_LOW,	"LCD 5v" },
35	{ H3600_EGPIO_LVDD_ON,	GPIOF_OUT_INIT_LOW,	"LCD 9v/-6.5v" },
36};
37
38static bool h3600_lcd_request(void)
39{
40	static bool h3600_lcd_ok;
41	int rc;
42
43	if (h3600_lcd_ok)
44		return true;
45
46	rc = gpio_request_array(h3600_lcd_gpio, ARRAY_SIZE(h3600_lcd_gpio));
47	if (rc)
48		pr_err("%s: can't request GPIOs\n", __func__);
49	else
50		h3600_lcd_ok = true;
51
52	return h3600_lcd_ok;
53}
54
55static void h3600_lcd_power(int enable)
56{
57	if (!h3600_lcd_request())
58		return;
59
60	gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
61	gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
62	gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
63	gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
64}
65
66static const struct sa1100fb_rgb h3600_rgb_16 = {
67	.red	= { .offset = 12, .length = 4, },
68	.green	= { .offset = 7,  .length = 4, },
69	.blue	= { .offset = 1,  .length = 4, },
70	.transp	= { .offset = 0,  .length = 0, },
71};
72
73static struct sa1100fb_mach_info h3600_lcd_info = {
74	.pixclock	= 174757, 	.bpp		= 16,
75	.xres		= 320,		.yres		= 240,
76
77	.hsync_len	= 3,		.vsync_len	= 3,
78	.left_margin	= 12,		.upper_margin	= 10,
79	.right_margin	= 17,		.lower_margin	= 1,
80
81	.cmap_static	= 1,
82
83	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
84	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
85
86	.rgb[RGB_16] = &h3600_rgb_16,
87
88	.lcd_power = h3600_lcd_power,
89};
90
91
92static void __init h3600_map_io(void)
93{
94	h3xxx_map_io();
95}
96
97/*
98 * This turns the IRDA power on or off on the Compaq H3600
99 */
100static struct gpio h3600_irda_gpio[] = {
101	{ H3600_EGPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
102	{ H3600_EGPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
103};
104
105static int h3600_irda_set_power(struct device *dev, unsigned int state)
106{
107	gpio_set_value(H3600_EGPIO_IR_ON, state);
108	return 0;
109}
110
111static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
112{
113	gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
114}
115
116static int h3600_irda_startup(struct device *dev)
117{
118	return gpio_request_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));
119}
120
121static void h3600_irda_shutdown(struct device *dev)
122{
123	return gpio_free_array(h3600_irda_gpio, sizeof(h3600_irda_gpio));
124}
125
126static struct irda_platform_data h3600_irda_data = {
127	.set_power	= h3600_irda_set_power,
128	.set_speed	= h3600_irda_set_speed,
129	.startup	= h3600_irda_startup,
130	.shutdown	= h3600_irda_shutdown,
131};
132
133static void __init h3600_mach_init(void)
134{
135	h3xxx_mach_init();
136
137	sa11x0_register_lcd(&h3600_lcd_info);
138	sa11x0_register_irda(&h3600_irda_data);
139}
140
141MACHINE_START(H3600, "Compaq iPAQ H3600")
142	.atag_offset	= 0x100,
143	.map_io		= h3600_map_io,
144	.nr_irqs	= SA1100_NR_IRQS,
145	.init_irq	= sa1100_init_irq,
146	.init_time	= sa1100_timer_init,
147	.init_machine	= h3600_mach_init,
148	.init_late	= sa11x0_init_late,
149	.restart	= sa11x0_restart,
150MACHINE_END
151
152