[mirror_ubuntu-bionic-kernel.git] / arch / arm / mach-sa1100 / h3100.c

/*
 * Support for Compaq iPAQ H3100 handheld computer
 *
 * Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
 * Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/gpio.h>

#include <video/sa1100fb.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <linux/platform_data/irda-sa11x0.h>

#include <mach/h3xxx.h>
#include <mach/irqs.h>

#include "generic.h"

/*
 * helper for sa1100fb
 */
static struct gpio h3100_lcd_gpio[] = {
	{ H3100_GPIO_LCD_3V_ON, GPIOF_OUT_INIT_LOW, "LCD 3V" },
	{ H3XXX_EGPIO_LCD_ON, GPIOF_OUT_INIT_LOW, "LCD ON" },
};

static bool h3100_lcd_request(void)
{
	static bool h3100_lcd_ok;
	int rc;

	if (h3100_lcd_ok)
		return true;

	rc = gpio_request_array(h3100_lcd_gpio, ARRAY_SIZE(h3100_lcd_gpio));
	if (rc)
		pr_err("%s: can't request GPIOs\n", __func__);
	else
		h3100_lcd_ok = true;

	return h3100_lcd_ok;
}

static void h3100_lcd_power(int enable)
{
	if (!h3100_lcd_request())
		return;

	gpio_set_value(H3100_GPIO_LCD_3V_ON, enable);
	gpio_set_value(H3XXX_EGPIO_LCD_ON, enable);
}

static struct sa1100fb_mach_info h3100_lcd_info = {
	.pixclock	= 406977, 	.bpp		= 4,
	.xres		= 320,		.yres		= 240,

	.hsync_len	= 26,		.vsync_len	= 41,
	.left_margin	= 4,		.upper_margin	= 0,
	.right_margin	= 4,		.lower_margin	= 0,

	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	.cmap_greyscale	= 1,
	.cmap_inverse	= 1,

	.lccr0		= LCCR0_Mono | LCCR0_4PixMono | LCCR0_Sngl | LCCR0_Pas,
	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),

	.lcd_power = h3100_lcd_power,
};

static void __init h3100_map_io(void)
{
	h3xxx_map_io();

	/* Older bootldrs put GPIO2-9 in alternate mode on the
	   assumption that they are used for video */
	GAFR &= ~0x000001fb;
}

/*
 * This turns the IRDA power on or off on the Compaq H3100
 */
static struct gpio h3100_irda_gpio[] = {
	{ H3100_GPIO_IR_ON,	GPIOF_OUT_INIT_LOW, "IrDA power" },
	{ H3100_GPIO_IR_FSEL,	GPIOF_OUT_INIT_LOW, "IrDA fsel" },
};

static int h3100_irda_set_power(struct device *dev, unsigned int state)
{
	gpio_set_value(H3100_GPIO_IR_ON, state);
	return 0;
}

static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
{
	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
}

static int h3100_irda_startup(struct device *dev)
{
	return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
}

static void h3100_irda_shutdown(struct device *dev)
{
	return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
}

static struct irda_platform_data h3100_irda_data = {
	.set_power	= h3100_irda_set_power,
	.set_speed	= h3100_irda_set_speed,
	.startup	= h3100_irda_startup,
	.shutdown	= h3100_irda_shutdown,
};

static void __init h3100_mach_init(void)
{
	h3xxx_mach_init();

	sa11x0_register_lcd(&h3100_lcd_info);
	sa11x0_register_irda(&h3100_irda_data);
}

MACHINE_START(H3100, "Compaq iPAQ H3100")
	.atag_offset	= 0x100,
	.map_io		= h3100_map_io,
	.nr_irqs	= SA1100_NR_IRQS,
	.init_irq	= sa1100_init_irq,
	.init_time	= sa1100_timer_init,
	.init_machine	= h3100_mach_init,
	.init_late	= sa11x0_init_late,
	.restart	= sa11x0_restart,
MACHINE_END
Commit	Line	Data
86e5e38c	1	/*
6e23fcb3	2	* Support for Compaq iPAQ H3100 handheld computer
86e5e38c	3	*
6e23fcb3 DA	4	* Copyright (c) 2000,1 Compaq Computer Corporation. (Author: Jamey Hicks)
6e23fcb3 DA	5	* Copyright (c) 2009 Dmitry Artamonow <mad_soft@inbox.ru>
86e5e38c	6	*
6e23fcb3 DA	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.
86e5e38c DA	10	*
86e5e38c DA	11	*/
6e23fcb3	12
86e5e38c DA	13	#include <linux/init.h>
86e5e38c DA	14	#include <linux/kernel.h>
86e5e38c	15	#include <linux/gpio.h>
86e5e38c	16
e1b7a72a RK	17	#include <video/sa1100fb.h>
e1b7a72a RK	18
86e5e38c	19	#include <asm/mach-types.h>
86e5e38c	20	#include <asm/mach/arch.h>
dd450777	21	#include <linux/platform_data/irda-sa11x0.h>
86e5e38c DA	22
86e5e38c DA	23	#include <mach/h3xxx.h>
f314f33b	24	#include <mach/irqs.h>
86e5e38c DA	25
	26	#include "generic.h"
	27
	28	/*
	29	* helper for sa1100fb
	30	*/
5f72d85e DES	31	static 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
	36	static 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
86e5e38c DA	53	static void h3100_lcd_power(int enable)
86e5e38c DA	54	{
5f72d85e DES	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);
86e5e38c DA	60	}
86e5e38c DA	61
e1b7a72a RK	62	static 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),
086ada54 RK	76
086ada54 RK	77	.lcd_power = h3100_lcd_power,
e1b7a72a	78	};
86e5e38c DA	79
	80	static void __init h3100_map_io(void)
	81	{
	82	h3xxx_map_io();
	83
86e5e38c DA	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	*/
d8eec82c DES	92	static 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
86e5e38c DA	97	static 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
	103	static void h3100_irda_set_speed(struct device *dev, unsigned int speed)
	104	{
	105	gpio_set_value(H3100_GPIO_IR_FSEL, !(speed < 4000000));
	106	}
	107
d8eec82c DES	108	static int h3100_irda_startup(struct device *dev)
	109	{
	110	return gpio_request_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
	111	}
	112
	113	static void h3100_irda_shutdown(struct device *dev)
	114	{
	115	return gpio_free_array(h3100_irda_gpio, sizeof(h3100_irda_gpio));
	116	}
	117
86e5e38c DA	118	static struct irda_platform_data h3100_irda_data = {
	119	.set_power = h3100_irda_set_power,
	120	.set_speed = h3100_irda_set_speed,
d8eec82c DES	121	.startup = h3100_irda_startup,
d8eec82c DES	122	.shutdown = h3100_irda_shutdown,
86e5e38c DA	123	};
86e5e38c DA	124
86e5e38c DA	125	static void __init h3100_mach_init(void)
86e5e38c DA	126	{
86e5e38c	127	h3xxx_mach_init();
e1b7a72a	128
e1b7a72a	129	sa11x0_register_lcd(&h3100_lcd_info);
86e5e38c DA	130	sa11x0_register_irda(&h3100_irda_data);
	131	}
	132
	133	MACHINE_START(H3100, "Compaq iPAQ H3100")
17f4425d	134	.atag_offset = 0x100,
86e5e38c	135	.map_io = h3100_map_io,
f314f33b	136	.nr_irqs = SA1100_NR_IRQS,
86e5e38c	137	.init_irq = sa1100_init_irq,
6bb27d73	138	.init_time = sa1100_timer_init,
86e5e38c	139	.init_machine = h3100_mach_init,
7fea1ba5	140	.init_late = sa11x0_init_late,
d9ca5839	141	.restart = sa11x0_restart,
86e5e38c DA	142	MACHINE_END
86e5e38c DA	143