Linux Kernel  3.7.1
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h3600.c
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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 <[email protected]>
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 
54 
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,
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 {
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;
113  if (err)
114  goto err2;
115  err = gpio_request(H3600_EGPIO_IR_FSEL, "IrDA fsel");
116  if (err)
117  goto err2;
119  if (err)
120  goto err3;
121  return 0;
122 
125 err1: return err;
126 }
127 
128 static void h3600_irda_shutdown(struct device *dev)
129 {
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  .timer = &sa1100_timer,
162  .init_machine = h3600_mach_init,
163  .init_late = sa11x0_init_late,
164  .restart = sa11x0_restart,
166