From a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 Mon Sep 17 00:00:00 2001
From: "Michael J. Chudobiak" <mjc@avtechpulse.com>
Date: Mon, 25 Apr 2016 10:00:44 -0400
Subject: initial Olimex linux tree from Daniel, originally Feb 3, 2016

---
 linux/arch/arm/mach-sa1100/h3100.c | 143 +++++++++++++++++++++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 linux/arch/arm/mach-sa1100/h3100.c

(limited to 'linux/arch/arm/mach-sa1100/h3100.c')

diff --git a/linux/arch/arm/mach-sa1100/h3100.c b/linux/arch/arm/mach-sa1100/h3100.c
new file mode 100644
index 00000000..c6b41205
--- /dev/null
+++ b/linux/arch/arm/mach-sa1100/h3100.c
@@ -0,0 +1,143 @@
+/*
+ * 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
+
-- 
cgit