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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Dmitry Artamonow6e23fcb2009-11-27 12:11:48 +01002 * Support for Compaq iPAQ H3600 handheld computer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
Dmitry Artamonow6e23fcb2009-11-27 12:11:48 +01004 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
5 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 *
Dmitry Artamonow6e23fcb2009-11-27 12:11:48 +01007 * 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 *
11 */
Dmitry Artamonow6e23fcb2009-11-27 12:11:48 +010012
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/init.h>
14#include <linux/kernel.h>
Russell King0831e3e2009-10-06 14:35:16 +010015#include <linux/gpio.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <asm/mach-types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <asm/mach/arch.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <asm/mach/irda.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
Dmitry Artamonow8715b292009-11-27 12:09:25 +010021#include <mach/h3xxx.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
23#include "generic.h"
24
Dmitry Artamonowcf5a87d2009-11-27 11:58:35 +010025/*
26 * helper for sa1100fb
27 */
28static void h3600_lcd_power(int enable)
29{
Dmitry Artamonow729fae42009-11-27 12:22:32 +010030 if (gpio_request(H3XXX_EGPIO_LCD_ON, "LCD power")) {
31 pr_err("%s: can't request H3XXX_EGPIO_LCD_ON\n", __func__);
Dmitry Artamonow22f97402009-11-27 12:02:28 +010032 goto err1;
Dmitry Artamonow729fae42009-11-27 12:22:32 +010033 }
34 if (gpio_request(H3600_EGPIO_LCD_PCI, "LCD control")) {
35 pr_err("%s: can't request H3XXX_EGPIO_LCD_PCI\n", __func__);
Dmitry Artamonow22f97402009-11-27 12:02:28 +010036 goto err2;
Dmitry Artamonow729fae42009-11-27 12:22:32 +010037 }
38 if (gpio_request(H3600_EGPIO_LCD_5V_ON, "LCD 5v")) {
39 pr_err("%s: can't request H3XXX_EGPIO_LCD_5V_ON\n", __func__);
Dmitry Artamonow22f97402009-11-27 12:02:28 +010040 goto err3;
Dmitry Artamonow729fae42009-11-27 12:22:32 +010041 }
42 if (gpio_request(H3600_EGPIO_LVDD_ON, "LCD 9v/-6.5v")) {
43 pr_err("%s: can't request H3600_EGPIO_LVDD_ON\n", __func__);
Dmitry Artamonow22f97402009-11-27 12:02:28 +010044 goto err4;
Dmitry Artamonow729fae42009-11-27 12:22:32 +010045 }
Dmitry Artamonow22f97402009-11-27 12:02:28 +010046
47 gpio_direction_output(H3XXX_EGPIO_LCD_ON, enable);
48 gpio_direction_output(H3600_EGPIO_LCD_PCI, enable);
49 gpio_direction_output(H3600_EGPIO_LCD_5V_ON, enable);
50 gpio_direction_output(H3600_EGPIO_LVDD_ON, enable);
51
52 gpio_free(H3600_EGPIO_LVDD_ON);
53err4: gpio_free(H3600_EGPIO_LCD_5V_ON);
54err3: gpio_free(H3600_EGPIO_LCD_PCI);
55err2: gpio_free(H3XXX_EGPIO_LCD_ON);
56err1: return;
Dmitry Artamonowcf5a87d2009-11-27 11:58:35 +010057}
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059static void __init h3600_map_io(void)
60{
61 h3xxx_map_io();
62
Dmitry Artamonowcf5a87d2009-11-27 11:58:35 +010063 sa1100fb_lcd_power = h3600_lcd_power;
Linus Torvalds1da177e2005-04-16 15:20:36 -070064}
65
Russell Kinga5d176a2009-10-06 14:22:23 +010066/*
67 * This turns the IRDA power on or off on the Compaq H3600
68 */
69static int h3600_irda_set_power(struct device *dev, unsigned int state)
70{
Dmitry Artamonow22f97402009-11-27 12:02:28 +010071 gpio_set_value(H3600_EGPIO_IR_ON, state);
Russell Kinga5d176a2009-10-06 14:22:23 +010072 return 0;
73}
74
75static void h3600_irda_set_speed(struct device *dev, unsigned int speed)
76{
Dmitry Artamonow22f97402009-11-27 12:02:28 +010077 gpio_set_value(H3600_EGPIO_IR_FSEL, !(speed < 4000000));
78}
79
80static int h3600_irda_startup(struct device *dev)
81{
82 int err = gpio_request(H3600_EGPIO_IR_ON, "IrDA power");
83 if (err)
84 goto err1;
85 err = gpio_direction_output(H3600_EGPIO_IR_ON, 0);
86 if (err)
87 goto err2;
88 err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
89 if (err)
90 goto err2;
91 err = gpio_direction_output(H3600_EGPIO_IR_FSEL, 0);
92 if (err)
93 goto err3;
94 return 0;
95
96err3: gpio_free(H3600_EGPIO_IR_FSEL);
97err2: gpio_free(H3600_EGPIO_IR_ON);
98err1: return err;
99}
100
101static void h3600_irda_shutdown(struct device *dev)
102{
103 gpio_free(H3600_EGPIO_IR_ON);
104 gpio_free(H3600_EGPIO_IR_FSEL);
Russell Kinga5d176a2009-10-06 14:22:23 +0100105}
106
107static struct irda_platform_data h3600_irda_data = {
108 .set_power = h3600_irda_set_power,
109 .set_speed = h3600_irda_set_speed,
Dmitry Artamonow22f97402009-11-27 12:02:28 +0100110 .startup = h3600_irda_startup,
111 .shutdown = h3600_irda_shutdown,
Russell Kinga5d176a2009-10-06 14:22:23 +0100112};
113
Russell King6e21ee62009-10-06 15:16:27 +0100114static struct gpio_default_state h3600_default_gpio[] = {
115 { H3XXX_GPIO_COM_DCD, GPIO_MODE_IN, "COM DCD" },
116 { H3XXX_GPIO_COM_CTS, GPIO_MODE_IN, "COM CTS" },
117 { H3XXX_GPIO_COM_RTS, GPIO_MODE_OUT0, "COM RTS" },
118};
119
Dmitry Artamonowe55b20e2009-11-27 11:06:46 +0100120static void __init h3600_mach_init(void)
Russell King898e8102009-10-06 14:19:44 +0100121{
Russell King6e21ee62009-10-06 15:16:27 +0100122 h3xxx_init_gpio(h3600_default_gpio, ARRAY_SIZE(h3600_default_gpio));
Russell King898e8102009-10-06 14:19:44 +0100123 h3xxx_mach_init();
Russell Kinga5d176a2009-10-06 14:22:23 +0100124 sa11x0_register_irda(&h3600_irda_data);
Russell King898e8102009-10-06 14:19:44 +0100125}
126
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127MACHINE_START(H3600, "Compaq iPAQ H3600")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100128 .phys_io = 0x80000000,
129 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
130 .boot_params = 0xc0000100,
131 .map_io = h3600_map_io,
132 .init_irq = sa1100_init_irq,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 .timer = &sa1100_timer,
Russell King898e8102009-10-06 14:19:44 +0100134 .init_machine = h3600_mach_init,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135MACHINE_END
136