mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 16:07:07 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18540 3c298f89-4303-0410-b956-a3cf2f4a3e73
1320 lines
39 KiB
Diff
1320 lines
39 KiB
Diff
Index: linux-2.6.30.9/drivers/input/touchscreen/Kconfig
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===================================================================
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--- linux-2.6.30.9.orig/drivers/input/touchscreen/Kconfig 2009-11-24 21:00:18.000000000 +0100
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+++ linux-2.6.30.9/drivers/input/touchscreen/Kconfig 2009-11-24 21:00:45.000000000 +0100
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@@ -161,6 +161,10 @@
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module will be called wacom_w8001.
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+config TOUCHSCREEN_EP93XX
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+ tristate "EP93xx Touchscreen"
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+ depends on ARM && INPUT && ARCH_EP93XX
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+
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config TOUCHSCREEN_MTOUCH
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tristate "MicroTouch serial touchscreens"
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select SERIO
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Index: linux-2.6.30.9/drivers/input/touchscreen/Makefile
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===================================================================
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--- linux-2.6.30.9.orig/drivers/input/touchscreen/Makefile 2009-11-24 21:00:18.000000000 +0100
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+++ linux-2.6.30.9/drivers/input/touchscreen/Makefile 2009-11-24 21:00:45.000000000 +0100
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@@ -14,6 +14,7 @@
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obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
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obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
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obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
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+obj-$(CONFIG_TOUCHSCREEN_EP93XX) += ep93xx_ts.o
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obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
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obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
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obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o
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Index: linux-2.6.30.9/drivers/input/touchscreen/ep93xx_ts.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ linux-2.6.30.9/drivers/input/touchscreen/ep93xx_ts.c 2009-11-24 21:09:48.000000000 +0100
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@@ -0,0 +1,1117 @@
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+/*
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+ * linux/drivers/input/touchscreen/ep93xx_ts.c
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+ *
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+ * Copyright (C) 2003-2004 Cirrus Corp.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/types.h>
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+#include <linux/delay.h>
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+#include <linux/wait.h>
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+#include <linux/fs.h>
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+#include <linux/sched.h>
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+#include <linux/poll.h>
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+#include <linux/miscdevice.h>
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+#include <linux/init.h>
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+#include <linux/compiler.h>
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+#include <linux/timer.h>
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+#include <linux/interrupt.h>
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+#include <linux/syscalls.h>
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+#include <linux/input.h>
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+#include <asm/irq.h>
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+#include <mach/hardware.h>
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+#include <asm/io.h>
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+
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+#define TOUCH_OFFSET 0x100000
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+#define TOUCH_BASE (EP93XX_APB_VIRT_BASE|TOUCH_OFFSET)
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+#define TSSetup (TOUCH_BASE+0x00) /* R/W touchscreen controller setup control register. */
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+#define TSXYMaxMin (TOUCH_BASE+0x04) /* R/W touchscreen controller max/min register. */
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+#define TSXYResult (TOUCH_BASE+0x08) /* R touchscreen controller result register. */
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+#define TSDischarge (TOUCH_BASE+0x0C) /* LOCKED R/W touchscreen Switch Matrix control register. */
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+#define TSXSample (TOUCH_BASE+0x10) /* LOCKED R/W touchscreen Switch Matrix control register. */
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+#define TSYSample (TOUCH_BASE+0x14) /* LOCKED R/W touchscreen Switch Matrix control register. */
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+#define TSDirect (TOUCH_BASE+0x18) /* LOCKED R/W touchscreen Switch Matrix control register. */
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+#define TSDetect (TOUCH_BASE+0x1C) /* LOCKED R/W touchscreen Switch Matrix control register. */
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+#define TSSWLock (TOUCH_BASE+0x20) /* NA R/W touchscreen software lock register. */
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+#define TSSetup2 (TOUCH_BASE+0x24) /* R/W touchscreen setup control register #2. */
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+
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+//
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+// To customize for a new touchscreen, there are various macros that
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+// have to be set. If you allow UART_HACK_DEBUG to be defined, you
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+// will get real time ts data scrolling up your serial terminal
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+// screen that will help you empirically determine good values for these.
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+//
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+
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+//
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+// These are used as trigger levels to know when we have pen up/down
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+//
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+// The rules:
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+// 1. TS_HEAVY_INV_PRESSURE < TS_LIGHT_INV_PRESSURE because these
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+// are Inverse pressure.
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+// 2. Any touch lighter than TS_LIGHT_INV_PRESSURE is a pen up.
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+// 3. Any touch heavier than TS_HEAVY_INV_PRESSURE is a pen down.
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+//
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+#define TS_HEAVY_INV_PRESSURE 0xFE0 //C00
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+#define TS_LIGHT_INV_PRESSURE 0xFFF //e00
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+
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+//
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+// If the x, y, or inverse pressure changes more than these values
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+// between two succeeding points, the point is not reported.
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+//
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+#define TS_MAX_VALID_XY_CHANGE 0x300
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+#define TS_MAX_VALID_PRESSURE_CHANGE 0x100
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+
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+//
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+// This is the minimum Z1 Value that is valid.
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+//
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+#define MIN_Z1_VALUE 0x50
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+
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+//
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+// Settling delay for taking each ADC measurement. Increase this
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+// if ts is jittery.
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+//
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+#define EP93XX_TS_ADC_DELAY_USEC 2000
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+
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+//
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+// Delay between TS points.
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+//
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+#define EP93XX_TS_PER_POINT_DELAY_USEC 10000
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+
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+//-----------------------------------------------------------------------------
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+// Debug messaging thru the UARTs
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+//-----------------------------------------------------------------------------
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+/*
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+ * Hello there! Are you trying to get this driver to work with a new
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+ * touschscreen? Turn this on and you will get useful info coming
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+ * out of your serial port.
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+ */
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+/* #define PRINT_CALIBRATION_FACTORS */
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+#ifdef PRINT_CALIBRATION_FACTORS
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+#define UART_HACK_DEBUG 1
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+int iMaxX=0, iMaxY=0, iMinX = 0xfff, iMinY = 0xfff;
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+#endif
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+
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+/*
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+ * For debugging, let's spew messages out serial port 1 or 3 at 57,600 baud.
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+ */
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+/* #define UART_HACK_DEBUG 1 */
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+#if 0
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+#ifdef UART_HACK_DEBUG
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+static char szBuf[256];
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+void UARTWriteString(char * msg);
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+#define DPRINTK( x... ) \
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+ sprintf( szBuf, ##x ); \
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+ UARTWriteString( szBuf );
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+#else
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+static char szBuf[256];
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+#define DPRINTK( x... ) \
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+ sprintf( szBuf, ##x ); \
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+ printk( szBuf );
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+#endif
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+#endif // 0
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+#define DPRINTK( x... )
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+
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+//-----------------------------------------------------------------------------
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+// A few more macros...
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+//-----------------------------------------------------------------------------
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+#define TSSETUP_DEFAULT ( TSSETUP_NSMP_32 | TSSETUP_DEV_64 | \
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+ ((128<<TSSETUP_SDLY_SHIFT) & TSSETUP_SDLY_MASK) | \
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+ ((128<<TSSETUP_DLY_SHIFT) & TSSETUP_DLY_MASK) )
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+
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+#define TSSETUP2_DEFAULT (TSSETUP2_NSIGND)
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+
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+//
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+// For now, we use one of the minor numbers from the local/experimental
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+// range.
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+//
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+#define EP93XX_TS_MINOR 240
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+
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+//-----------------------------------------------------------------------------
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+// Static Declarations
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+//-----------------------------------------------------------------------------
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+static unsigned int guiLastX, guiLastY;
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+static unsigned int guiLastInvPressure;
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+
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+struct TouchScreenSample
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+{
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+ int currentX;
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+ int currentY;
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+ int currentButton;
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+ int currentPressure;
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+ struct timeval currentTime;
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+};
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+
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+//
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+// This must match the structure in tslib.
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+//
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+struct ts_sample {
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+ int x;
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+ int y;
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+ unsigned int pressure;
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+ struct timeval tv;
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+};
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+
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+
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+static struct TouchScreenSample gSample;
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+
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+// static int currentX, currentY, currentButton;
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+// static int gPressure;
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+// static struct timeval gtime;
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+
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+static int bFreshTouchData;
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+static int bCurrentPenDown;
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+
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+
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+
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+static DECLARE_WAIT_QUEUE_HEAD(queue);
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+static DECLARE_MUTEX(open_sem);
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+static spinlock_t event_buffer_lock = SPIN_LOCK_UNLOCKED;
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+static struct fasync_struct *ep93xx_fasync;
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+
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+//-----------------------------------------------------------------------------
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+// Typedef Declarations
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+//-----------------------------------------------------------------------------
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+typedef enum {
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+ TS_MODE_UN_INITIALIZED,
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+ TS_MODE_HARDWARE_SCAN,
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+ TS_MODE_SOFT_SCAN
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+} ts_mode_t;
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+
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+static ts_mode_t gScanningMode;
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+
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+typedef enum{
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+ TS_STATE_STOPPED = 0,
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+ TS_STATE_Z1,
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+ TS_STATE_Z2,
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+ TS_STATE_Y,
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+ TS_STATE_X,
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+ TS_STATE_DONE
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+} ts_states_t;
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+
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+typedef struct
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+{
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+ unsigned int uiX;
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+ unsigned int uiY;
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+ unsigned int uiZ1;
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+ unsigned int uiZ2;
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+ ts_states_t state;
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+} ts_struct_t;
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+
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+static ts_struct_t sTouch;
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+
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+/*
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+ * From the spec, here's how to set up the touch screen's switch registers.
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+ */
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+typedef struct
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+{
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+ unsigned int uiDetect;
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+ unsigned int uiDischarge;
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+ unsigned int uiXSample;
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+ unsigned int uiYSample;
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+ unsigned int uiSwitchZ1;
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+ unsigned int uiSwitchZ2;
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+}SwitchStructType;
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+
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+//
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+// Here's the switch settings for a 4-wire touchscreen. See the spec
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+// for how to handle a 4, 7, or 8-wire.
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+//
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+const static SwitchStructType sSwitchSettings =
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+/* s28en=0
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+ * TSDetect TSDischarge TSXSample TSYSample SwitchZ1 SwitchZ2
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+ */
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+ {0x00403604, 0x0007fe04, 0x00081604, 0x00104601, 0x00101601, 0x00101608};
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+
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+
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+//-----------------------------------------------------------------------------
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+// Function Declarations
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+//-----------------------------------------------------------------------------
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+static void ep93xx_ts_set_direct( unsigned int uiADCSwitch );
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+static irqreturn_t ep93xx_ts_isr(int irq, void *dev_id);
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+static irqreturn_t ep93xx_timer2_isr(int irq, void *dev_id);
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+static void ee93xx_ts_evt_add( int button, int dX, int dY, int Pressure );
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+static ssize_t ep93xx_ts_read(struct file *filp, char *buf,
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+ size_t count, loff_t *l);
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+static unsigned int ep93xx_ts_poll(struct file *filp, poll_table *wait);
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+static int ep93xx_ts_open(struct inode *inode, struct file *filp);
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+static int ep93xx_ts_fasync(int fd, struct file *filp, int on);
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+static int ep93xx_ts_release(struct inode *inode, struct file *filp);
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+static ssize_t ep93xx_ts_write(struct file *file, const char *buffer,
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+ size_t count, loff_t *ppos);
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+static void ep93xx_ts_setup(void);
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+static void ep93xx_ts_shutdown(void);
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+int __init ep93xx_ts_init(void);
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+void __exit ep93xx_ts_exit(void);
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+static unsigned int CalculateInvPressure( void );
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+static unsigned int ADCGetData( unsigned int uiSamples, unsigned int uiMaxDiff);
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+static void TS_Soft_Scan_Mode(void);
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+static void TS_Hardware_Scan_Mode(void);
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+static void ProcessPointData(void);
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+static void Set_Timer2_uSec( unsigned int Delay_mSec );
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+static void Stop_Timer2(void);
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+
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+
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+
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+//-----------------------------------------------------------------------------
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+// Debug stuff...
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+//-----------------------------------------------------------------------------
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+
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+#ifdef UART_HACK_DEBUG
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+
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+// This "array" is a cheap-n-easy way of getting access to the UART registers.
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+static unsigned int * const pDebugUART=(unsigned int *)IO_ADDRESS(UART1_BASE);
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+//static unsigned int * const pDebugUART=(unsigned int *)IO_ADDRESS(UART3_BASE);
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+static int bUartInitialized = 0;
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+
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+void SendChar(char value)
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+{
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+ // wait for Tx fifo full flag to clear.
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+ while (pDebugUART[0x18>>2] & 0x20);
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+
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+ // send a char to the uart
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+ pDebugUART[0] = value;
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+}
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+
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+void UARTWriteString(char * msg)
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+{
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+ int index = 0;
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+ unsigned int uiTemp;
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+
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+ //if((pDebugUART[0x14>>2] & 0x1) == 0)
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+ if( bUartInitialized == 0 )
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+ {
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+ uiTemp = inl(EP93XX_SYSCON_DEVICE_CONFIG);
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+ uiTemp |= EP93XX_SYSCON_DEVCFG_U1E;
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+ //uiTemp |= EP93XX_SYSCON_DEVCFG_U3E;
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+ SysconSetLocked(EP93XX_SYSCON_DEVICE_CONFIG, uiTemp);
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+ pDebugUART[0x10>>2] = 0xf;
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+ pDebugUART[0xc>>2] = 0;
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+ pDebugUART[0x8>>2] = 0x70;
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+ pDebugUART[0x14>>2] = 0x1;
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+ bUartInitialized = 1;
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+ }
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+ while (msg[index] != 0)
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+ {
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+ if (msg[index] == '\n')
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+ {
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+ SendChar('\r');
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+ SendChar('\n');
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+ }
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+ else
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+ {
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+ SendChar(msg[index]);
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+ }
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+ index++;
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+ }
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+}
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+#endif // UART_HACK_DEBUG
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+
|
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+/*
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+ * ep93xx_ts_isr
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+ */
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+static irqreturn_t ep93xx_ts_isr(int irq, void *dev_id)
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+{
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+ DPRINTK("isr\n");
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+
|
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+ //
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+ // Note that we don't clear the interrupt here. The interrupt
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+ // gets cleared in TS_Soft_Scan_Mode when the TS ENABLE
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+ // bit is cleared.
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+ //
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+
|
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+ //
|
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+ // Set the ts to manual polling mode and schedule a callback.
|
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+ // That way we can return from the isr in a reasonable amount of
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+ // time and process the touch in the callback after a brief delay.
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+ //
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+ TS_Soft_Scan_Mode();
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+
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+ return(IRQ_HANDLED);
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+}
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+
|
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+/*
|
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+ * Save the current ts 'event' in an atomic fashion.
|
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+ */
|
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+static void ee93xx_ts_evt_add( int buttons, int iX, int iY, int iPressure )
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+{
|
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+#ifdef PRINT_CALIBRATION_FACTORS
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+ if( iX > iMaxX ) iMaxX = iX;
|
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+ if( iX < iMinX ) iMinX = iX;
|
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+ if( iY > iMaxY ) iMaxY = iY;
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+ if( iY < iMinY ) iMinY = iY;
|
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+#endif
|
|
+
|
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+
|
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+ // printk("ee93xx_ts_evt_add\n");
|
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+ //DPRINTK("cb\n");
|
|
+ /*
|
|
+ * Note the event, but use spinlocks to keep it from getting
|
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+ * halfway read if we get interrupted.
|
|
+ */
|
|
+
|
|
+ spin_lock(&event_buffer_lock);
|
|
+ gSample.currentX = iX;
|
|
+ gSample.currentY = iY;
|
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+ gSample.currentButton = buttons;
|
|
+ gSample.currentPressure = iPressure;
|
|
+ bFreshTouchData = 1;
|
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+ do_gettimeofday(&gSample.currentTime);
|
|
+
|
|
+
|
|
+ spin_unlock(&event_buffer_lock);
|
|
+
|
|
+ kill_fasync(&ep93xx_fasync, SIGIO, POLL_IN);
|
|
+ wake_up_interruptible(&queue);
|
|
+
|
|
+}
|
|
+
|
|
+
|
|
+static ssize_t ep93xx_ts_read(struct file *filp, char *buf, size_t count, loff_t *l)
|
|
+{
|
|
+
|
|
+ unsigned short data[3];
|
|
+ struct ts_sample ts_data;
|
|
+ int iReturn = -EFAULT;
|
|
+ // printk("ep93xx_ts_read\n");
|
|
+
|
|
+#ifdef PRINT_CALIBRATION_FACTORS
|
|
+ static int lala=0;
|
|
+ if( bFreshTouchData && (lala++ > 9) )
|
|
+ {
|
|
+ DPRINTK("%4d, %4d - range [%4d to %4d],[%4d to %4d]\n",
|
|
+ f, currentY, iMinX, iMaxX, iMinY, iMaxY );
|
|
+ lala = 0;
|
|
+ }
|
|
+#endif
|
|
+ if( !bFreshTouchData)
|
|
+ {
|
|
+ iReturn = 0;
|
|
+ }
|
|
+ else if( (count == sizeof(data)) )
|
|
+ {
|
|
+ spin_lock_irq(&event_buffer_lock);
|
|
+ bFreshTouchData = 0;
|
|
+ data[0] = gSample.currentX;
|
|
+ data[1] = gSample.currentY;
|
|
+ data[2] = gSample.currentButton;
|
|
+
|
|
+ spin_unlock_irq(&event_buffer_lock);
|
|
+
|
|
+ if (copy_to_user(buf, data, sizeof data))
|
|
+ return -EFAULT;
|
|
+
|
|
+ count -= sizeof(data);
|
|
+
|
|
+ /* return the # of bytes that got read */
|
|
+ iReturn = sizeof(data) ;
|
|
+ }
|
|
+ else if (count == sizeof(struct ts_sample) )
|
|
+ {
|
|
+ spin_lock_irq(&event_buffer_lock);
|
|
+ bFreshTouchData = 0;
|
|
+ ts_data.x = gSample.currentX;
|
|
+ ts_data.y = gSample.currentY;
|
|
+ ts_data.pressure = gSample.currentPressure;
|
|
+ ts_data.tv = gSample.currentTime;
|
|
+ spin_unlock_irq(&event_buffer_lock);
|
|
+
|
|
+ if (copy_to_user(buf, &ts_data, sizeof(struct ts_sample)))
|
|
+ {
|
|
+ iReturn = -EFAULT;
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ count -= sizeof(ts_data);
|
|
+ iReturn = sizeof(ts_data);
|
|
+ }
|
|
+
|
|
+ }
|
|
+
|
|
+ return iReturn;
|
|
+}
|
|
+
|
|
+static unsigned int ep93xx_ts_poll(struct file *filp, poll_table *wait)
|
|
+{
|
|
+ // printk("ep93xx_ts_poll\n");
|
|
+ poll_wait(filp, &queue, wait);
|
|
+
|
|
+ if( bFreshTouchData )
|
|
+ {
|
|
+ return POLLIN | POLLRDNORM;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ep93xx_ts_open(struct inode *inode, struct file *filp)
|
|
+{
|
|
+ printk("ep93xx_ts_open");
|
|
+
|
|
+ if( down_trylock(&open_sem) )
|
|
+ {
|
|
+ return -EBUSY;
|
|
+ }
|
|
+
|
|
+ ep93xx_ts_setup();
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+/*
|
|
+ * Asynchronous I/O support.
|
|
+ */
|
|
+static int ep93xx_ts_fasync(int fd, struct file *filp, int on)
|
|
+{
|
|
+ int retval;
|
|
+
|
|
+ retval = fasync_helper(fd, filp, on, &ep93xx_fasync);
|
|
+ if (retval < 0)
|
|
+ {
|
|
+ return retval;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ep93xx_ts_release(struct inode *inode, struct file *filp)
|
|
+{
|
|
+ Stop_Timer2();
|
|
+
|
|
+ /*
|
|
+ * Call our async I/O support to request that this file
|
|
+ * cease to be used for async I/O.
|
|
+ */
|
|
+ ep93xx_ts_fasync(-1, filp, 0);
|
|
+
|
|
+ ep93xx_ts_shutdown();
|
|
+
|
|
+ up(&open_sem);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static ssize_t ep93xx_ts_write(struct file *file, const char *buffer, size_t count,
|
|
+ loff_t *ppos)
|
|
+{
|
|
+ return -EINVAL;
|
|
+}
|
|
+
|
|
+
|
|
+static int ep93xx_ts_ioctl(struct inode *inode, struct file *file, uint command, ulong u)
|
|
+{
|
|
+ static const int version = EV_VERSION;
|
|
+ static const u_int32_t bit =(1 << EV_ABS);
|
|
+ static const u_int32_t absbit = (1 << ABS_X) | (1 << ABS_Y) | (1 << ABS_PRESSURE);
|
|
+ int iReturn ;
|
|
+ int i = 0;
|
|
+
|
|
+ switch(command)
|
|
+ {
|
|
+ case EVIOCGVERSION:
|
|
+ DPRINTK("ep93xx_ts_ioctl command = EVIOCGVERSION\r\n");
|
|
+ i = copy_to_user((void __user *)u, (void *)version, sizeof(version));
|
|
+ iReturn = i ? -EFAULT : 0;
|
|
+ break;
|
|
+
|
|
+ case EVIOCGBIT(0,sizeof(u_int32_t) * 8) :
|
|
+ DPRINTK("ep93xx_ts_ioctl command = EVIOCGBIT(0,sizeof(uint32) * 8)\r\n");
|
|
+ i = copy_to_user((void __user *)u, (void *)bit, sizeof(bit));
|
|
+ iReturn = i ? -EFAULT : 0;
|
|
+ break;
|
|
+
|
|
+ case EVIOCGBIT(EV_ABS, sizeof(absbit) * 8):
|
|
+ DPRINTK("ep93xx_ts_ioctl command = EVIOCGBIT(0,sizeof(uint32) * 8)\r\n");
|
|
+ copy_to_user((void __user *)u, (void *)absbit, sizeof(absbit));
|
|
+ iReturn = i ? -EFAULT : 0;
|
|
+ break;
|
|
+ default:
|
|
+ DPRINTK(" ep93xx_ts_ioctl unknown command = %d\n",u);
|
|
+ iReturn = -1;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ return iReturn;
|
|
+}
|
|
+
|
|
+static struct file_operations ep93xx_ts_fops = {
|
|
+ owner: THIS_MODULE,
|
|
+ read: ep93xx_ts_read,
|
|
+ write: ep93xx_ts_write,
|
|
+ poll: ep93xx_ts_poll,
|
|
+ open: ep93xx_ts_open,
|
|
+ ioctl: ep93xx_ts_ioctl,
|
|
+ release: ep93xx_ts_release,
|
|
+ fasync: ep93xx_ts_fasync,
|
|
+};
|
|
+
|
|
+static struct miscdevice ep93xx_ts_miscdev =
|
|
+{
|
|
+ EP93XX_TS_MINOR,
|
|
+ "ep93xx_ts",
|
|
+ &ep93xx_ts_fops
|
|
+};
|
|
+
|
|
+void ep93xx_ts_setup(void)
|
|
+{
|
|
+ unsigned int uiKTDIV, uiTSXYMaxMin;
|
|
+ // printk("ep93xx_hw_setup\n");
|
|
+
|
|
+ /*
|
|
+ * Set the TSEN bit in KTDIV so that we are enabling the clock
|
|
+ * for the touchscreen.
|
|
+ */
|
|
+ uiKTDIV = inl(SYSCON_KTDIV);
|
|
+ uiKTDIV |= SYSCON_KTDIV_TSEN;
|
|
+ SysconSetLocked( SYSCON_KTDIV, uiKTDIV );
|
|
+
|
|
+ //
|
|
+ // Program the TSSetup and TSSetup2 registers.
|
|
+ //
|
|
+ outl( TSSETUP_DEFAULT, TSSetup );
|
|
+ outl( TSSETUP2_DEFAULT, TSSetup2 );
|
|
+
|
|
+ //
|
|
+ // Set the the touch settings.
|
|
+ //
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiDischarge, TSDirect );
|
|
+
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiDischarge, TSDischarge );
|
|
+
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiSwitchZ1, TSXSample );
|
|
+
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiSwitchZ2, TSYSample );
|
|
+
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiDetect, TSDetect );
|
|
+
|
|
+ //
|
|
+ // X,YMin set to 0x40 = have to drag that many pixels for a new irq.
|
|
+ // X,YMax set to 0x40 = 1024 pixels is the maximum movement within the
|
|
+ // time scan limit.
|
|
+ //
|
|
+ uiTSXYMaxMin = (50 << TSMAXMIN_XMIN_SHIFT) & TSMAXMIN_XMIN_MASK;
|
|
+ uiTSXYMaxMin |= (50 << TSMAXMIN_YMIN_SHIFT) & TSMAXMIN_YMIN_MASK;
|
|
+ uiTSXYMaxMin |= (0xff << TSMAXMIN_XMAX_SHIFT) & TSMAXMIN_XMAX_MASK;
|
|
+ uiTSXYMaxMin |= (0xff << TSMAXMIN_YMAX_SHIFT) & TSMAXMIN_YMAX_MASK;
|
|
+ outl( uiTSXYMaxMin, TSXYMaxMin );
|
|
+
|
|
+ bCurrentPenDown = 0;
|
|
+ bFreshTouchData = 0;
|
|
+ guiLastX = 0;
|
|
+ guiLastY = 0;
|
|
+ guiLastInvPressure = 0xffffff;
|
|
+
|
|
+ //
|
|
+ // Enable the touch screen scanning engine.
|
|
+ //
|
|
+ TS_Hardware_Scan_Mode();
|
|
+}
|
|
+
|
|
+/*
|
|
+ * ep93xx_ts_shutdown
|
|
+ *
|
|
+ */
|
|
+static void
|
|
+ep93xx_ts_shutdown(void)
|
|
+{
|
|
+ unsigned int uiKTDIV;
|
|
+
|
|
+ DPRINTK("ep93xx_ts_shutdown\n");
|
|
+
|
|
+ sTouch.state = TS_STATE_STOPPED;
|
|
+ Stop_Timer2();
|
|
+
|
|
+ /*
|
|
+ * Disable the scanning engine.
|
|
+ */
|
|
+ outl( 0, TSSetup );
|
|
+ outl( 0, TSSetup2 );
|
|
+
|
|
+ /*
|
|
+ * Clear the TSEN bit in KTDIV so that we are disabling the clock
|
|
+ * for the touchscreen.
|
|
+ */
|
|
+ uiKTDIV = inl(SYSCON_KTDIV);
|
|
+ uiKTDIV &= ~SYSCON_KTDIV_TSEN;
|
|
+ SysconSetLocked( SYSCON_KTDIV, uiKTDIV );
|
|
+
|
|
+} /* ep93xx_ts_shutdown */
|
|
+
|
|
+static irqreturn_t ep93xx_timer2_isr(int irq, void *dev_id)
|
|
+{
|
|
+ DPRINTK("%d", (int)sTouch.state );
|
|
+
|
|
+ switch( sTouch.state )
|
|
+ {
|
|
+ case TS_STATE_STOPPED:
|
|
+ TS_Hardware_Scan_Mode();
|
|
+ break;
|
|
+
|
|
+ //
|
|
+ // Get the Z1 value for pressure measurement and set up
|
|
+ // the switch register for getting the Z2 measurement.
|
|
+ //
|
|
+ case TS_STATE_Z1:
|
|
+ Set_Timer2_uSec( EP93XX_TS_ADC_DELAY_USEC );
|
|
+ sTouch.uiZ1 = ADCGetData( 2, 200 );
|
|
+ ep93xx_ts_set_direct( sSwitchSettings.uiSwitchZ2 );
|
|
+ sTouch.state = TS_STATE_Z2;
|
|
+ break;
|
|
+
|
|
+ //
|
|
+ // Get the Z2 value for pressure measurement and set up
|
|
+ // the switch register for getting the Y measurement.
|
|
+ //
|
|
+ case TS_STATE_Z2:
|
|
+ sTouch.uiZ2 = ADCGetData( 2, 200 );
|
|
+ ep93xx_ts_set_direct( sSwitchSettings.uiYSample );
|
|
+ sTouch.state = TS_STATE_Y;
|
|
+ break;
|
|
+
|
|
+ //
|
|
+ // Get the Y value and set up the switch register for
|
|
+ // getting the X measurement.
|
|
+ //
|
|
+ case TS_STATE_Y:
|
|
+ sTouch.uiY = ADCGetData( 4, 20 );
|
|
+ ep93xx_ts_set_direct( sSwitchSettings.uiXSample );
|
|
+ sTouch.state = TS_STATE_X;
|
|
+ break;
|
|
+
|
|
+ //
|
|
+ // Read the X value. This is the last of the 4 adc values
|
|
+ // we need so we continue on to process the data.
|
|
+ //
|
|
+ case TS_STATE_X:
|
|
+ Stop_Timer2();
|
|
+
|
|
+ sTouch.uiX = ADCGetData( 4, 20 );
|
|
+
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( sSwitchSettings.uiDischarge, TSDirect );
|
|
+
|
|
+ sTouch.state = TS_STATE_DONE;
|
|
+
|
|
+ /*
|
|
+ * Process this set of ADC readings.
|
|
+ */
|
|
+ ProcessPointData();
|
|
+
|
|
+ break;
|
|
+
|
|
+
|
|
+ //
|
|
+ // Shouldn't get here. But if we do, we can recover...
|
|
+ //
|
|
+ case TS_STATE_DONE:
|
|
+ TS_Hardware_Scan_Mode();
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ //
|
|
+ // Clear the timer2 interrupt.
|
|
+ //
|
|
+ outl( 1, TIMER2CLEAR );
|
|
+ return(IRQ_HANDLED);
|
|
+}
|
|
+
|
|
+/*---------------------------------------------------------------------
|
|
+ * ProcessPointData
|
|
+ *
|
|
+ * This routine processes the ADC data into usable point data and then
|
|
+ * puts the driver into hw or sw scanning mode before returning.
|
|
+ *
|
|
+ * We calculate inverse pressure (lower number = more pressure) then
|
|
+ * do a hystheresis with the two pressure values 'light' and 'heavy'.
|
|
+ *
|
|
+ * If we are above the light, we have pen up.
|
|
+ * If we are below the heavy we have pen down.
|
|
+ * As long as the pressure stays below the light, pen stays down.
|
|
+ * When we get above the light again, pen goes back up.
|
|
+ *
|
|
+ */
|
|
+static void ProcessPointData(void)
|
|
+{
|
|
+ int bValidPoint = 0;
|
|
+ unsigned int uiXDiff, uiYDiff, uiInvPressureDiff;
|
|
+ unsigned int uiInvPressure;
|
|
+
|
|
+ //
|
|
+ // Calculate the current pressure.
|
|
+ //
|
|
+ uiInvPressure = CalculateInvPressure();
|
|
+
|
|
+ DPRINTK(" X=0x%x, Y=0x%x, Z1=0x%x, Z2=0x%x, InvPressure=0x%x",
|
|
+ sTouch.uiX, sTouch.uiY, sTouch.uiZ1, sTouch.uiZ2, uiInvPressure );
|
|
+
|
|
+ //
|
|
+ // If pen pressure is so light that it is greater than the 'max' setting
|
|
+ // then we consider this to be a pen up.
|
|
+ //
|
|
+ if( uiInvPressure >= TS_LIGHT_INV_PRESSURE )
|
|
+ {
|
|
+ DPRINTK(" -- up \n");
|
|
+ bCurrentPenDown = 0;
|
|
+ ee93xx_ts_evt_add( 0, guiLastX, guiLastY, 0 );
|
|
+ TS_Hardware_Scan_Mode();
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ //
|
|
+ // Hystheresis:
|
|
+ // If the pen pressure is hard enough to be less than the 'min' OR
|
|
+ // the pen is already down and is still less than the 'max'...
|
|
+ //
|
|
+ if( (uiInvPressure < TS_HEAVY_INV_PRESSURE) ||
|
|
+ ( bCurrentPenDown && (uiInvPressure < TS_LIGHT_INV_PRESSURE) ) )
|
|
+ {
|
|
+ if( bCurrentPenDown )
|
|
+ {
|
|
+ //
|
|
+ // If pen was previously down, check the difference between
|
|
+ // the last sample and this one... if the difference between
|
|
+ // samples is too great, ignore the sample.
|
|
+ //
|
|
+ uiXDiff = abs(guiLastX - sTouch.uiX);
|
|
+ uiYDiff = abs(guiLastY - sTouch.uiY);
|
|
+ uiInvPressureDiff = abs(guiLastInvPressure - uiInvPressure);
|
|
+
|
|
+ if( (uiXDiff < TS_MAX_VALID_XY_CHANGE) && (uiYDiff < TS_MAX_VALID_XY_CHANGE) &&
|
|
+ (uiInvPressureDiff < TS_MAX_VALID_PRESSURE_CHANGE) )
|
|
+ {
|
|
+ DPRINTK(" -- valid(two) \n");
|
|
+ bValidPoint = 1;
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ DPRINTK(" -- INvalid(two) \n");
|
|
+ }
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ DPRINTK(" -- valid \n");
|
|
+ bValidPoint = 1;
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * If either the pen was put down or dragged make a note of it.
|
|
+ */
|
|
+ if( bValidPoint )
|
|
+ {
|
|
+ guiLastX = sTouch.uiX;
|
|
+ guiLastY = sTouch.uiY;
|
|
+ guiLastInvPressure = uiInvPressure;
|
|
+ bCurrentPenDown = 1;
|
|
+ ee93xx_ts_evt_add( 1, sTouch.uiX, sTouch.uiY, (0x7000000 /uiInvPressure) );
|
|
+ }
|
|
+
|
|
+ TS_Soft_Scan_Mode();
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ DPRINTK(" -- fallout \n");
|
|
+ TS_Hardware_Scan_Mode();
|
|
+}
|
|
+
|
|
+static void ep93xx_ts_set_direct( unsigned int uiADCSwitch )
|
|
+{
|
|
+ unsigned int uiResult;
|
|
+
|
|
+ //
|
|
+ // Set the switch settings in the direct register.
|
|
+ //
|
|
+ outl( 0xaa, TSSWLock );
|
|
+ outl( uiADCSwitch, TSDirect );
|
|
+
|
|
+ //
|
|
+ // Read and throw away the first sample.
|
|
+ //
|
|
+ do {
|
|
+ uiResult = inl(TSXYResult);
|
|
+ } while( !(uiResult & TSXYRESULT_SDR) );
|
|
+
|
|
+}
|
|
+
|
|
+static unsigned int ADCGetData
|
|
+(
|
|
+ unsigned int uiSamples,
|
|
+ unsigned int uiMaxDiff
|
|
+)
|
|
+{
|
|
+ unsigned int uiResult, uiValue, uiCount, uiLowest, uiHighest, uiSum, uiAve;
|
|
+
|
|
+ do
|
|
+ {
|
|
+ //
|
|
+ //Initialize our values.
|
|
+ //
|
|
+ uiLowest = 0xfffffff;
|
|
+ uiHighest = 0;
|
|
+ uiSum = 0;
|
|
+
|
|
+ for( uiCount = 0 ; uiCount < uiSamples ; uiCount++ )
|
|
+ {
|
|
+ //
|
|
+ // Read the touch screen four more times and average.
|
|
+ //
|
|
+ do {
|
|
+ uiResult = inl(TSXYResult);
|
|
+ } while( !(uiResult & TSXYRESULT_SDR) );
|
|
+
|
|
+ uiValue = (uiResult & TSXYRESULT_AD_MASK) >> TSXYRESULT_AD_SHIFT;
|
|
+ uiValue = ((uiValue >> 4) + ((1 + TSXYRESULT_X_MASK)>>1)) & TSXYRESULT_X_MASK;
|
|
+
|
|
+ //
|
|
+ // Add up the values.
|
|
+ //
|
|
+ uiSum += uiValue;
|
|
+
|
|
+ //
|
|
+ // Get the lowest and highest values.
|
|
+ //
|
|
+ if( uiValue < uiLowest )
|
|
+ {
|
|
+ uiLowest = uiValue;
|
|
+ }
|
|
+ if( uiValue > uiHighest )
|
|
+ {
|
|
+ uiHighest = uiValue;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ } while( (uiHighest - uiLowest) > uiMaxDiff );
|
|
+
|
|
+ //
|
|
+ // Calculate the Average value.
|
|
+ //
|
|
+ uiAve = uiSum / uiSamples;
|
|
+
|
|
+ return uiAve;
|
|
+}
|
|
+
|
|
+//****************************************************************************
|
|
+// CalculateInvPressure
|
|
+//****************************************************************************
|
|
+// Is the Touch Valid. Touch is not valid if the X or Y value is not
|
|
+// in range and the pressure is not enough.
|
|
+//
|
|
+// Touch resistance can be measured by the following formula:
|
|
+//
|
|
+// Rx * X * Z2
|
|
+// Rtouch = --------- * (-- - 1)
|
|
+// 4096 Z1
|
|
+//
|
|
+// This is simplified in the ration of Rtouch to Rx. The lower the value, the
|
|
+// higher the pressure.
|
|
+//
|
|
+// Z2
|
|
+// InvPressure = X * (-- - 1)
|
|
+// Z1
|
|
+//
|
|
+static unsigned int CalculateInvPressure(void)
|
|
+{
|
|
+ unsigned int uiInvPressure;
|
|
+
|
|
+ //
|
|
+ // Check to see if the point is valid.
|
|
+ //
|
|
+ if( sTouch.uiZ1 < MIN_Z1_VALUE )
|
|
+ {
|
|
+ uiInvPressure = 0x10000;
|
|
+ }
|
|
+
|
|
+ //
|
|
+ // Can omit the pressure calculation if you need to get rid of the division.
|
|
+ //
|
|
+ else
|
|
+ {
|
|
+ uiInvPressure = ((sTouch.uiX * sTouch.uiZ2) / sTouch.uiZ1) - sTouch.uiX;
|
|
+ }
|
|
+
|
|
+ return uiInvPressure;
|
|
+}
|
|
+
|
|
+
|
|
+
|
|
+//****************************************************************************
|
|
+// TS_Hardware_Scan_Mode
|
|
+//****************************************************************************
|
|
+// Enables the ep93xx ts scanning engine so that when the pen goes down
|
|
+// we will get an interrupt.
|
|
+//
|
|
+//
|
|
+static void TS_Hardware_Scan_Mode(void)
|
|
+{
|
|
+ unsigned int uiDevCfg;
|
|
+
|
|
+ DPRINTK("S\n");
|
|
+
|
|
+ //
|
|
+ // Disable the soft scanning engine.
|
|
+ //
|
|
+ sTouch.state = TS_STATE_STOPPED;
|
|
+ Stop_Timer2();
|
|
+
|
|
+ //
|
|
+ // Clear the TIN (Touchscreen INactive) bit so we can go to
|
|
+ // automatic scanning mode.
|
|
+ //
|
|
+ uiDevCfg = inl( EP93XX_SYSCON_DEVICE_CONFIG );
|
|
+ SysconSetLocked( EP93XX_SYSCON_DEVICE_CONFIG, (uiDevCfg & ~EP93XX_SYSCON_DEVCFG_TIN) );
|
|
+
|
|
+ //
|
|
+ // Enable the touch screen scanning state machine by setting
|
|
+ // the ENABLE bit.
|
|
+ //
|
|
+ outl( (TSSETUP_DEFAULT | TSSETUP_ENABLE), TSSetup );
|
|
+
|
|
+ //
|
|
+ // Set the flag to show that we are in interrupt mode.
|
|
+ //
|
|
+ gScanningMode = TS_MODE_HARDWARE_SCAN;
|
|
+
|
|
+ //
|
|
+ // Initialize TSSetup2 register.
|
|
+ //
|
|
+ outl( TSSETUP2_DEFAULT, TSSetup2 );
|
|
+
|
|
+}
|
|
+
|
|
+//****************************************************************************
|
|
+// TS_Soft_Scan_Mode
|
|
+//****************************************************************************
|
|
+// Sets the touch screen to manual polling mode.
|
|
+//
|
|
+//
|
|
+static void TS_Soft_Scan_Mode(void)
|
|
+{
|
|
+ unsigned int uiDevCfg;
|
|
+
|
|
+ DPRINTK("M\n");
|
|
+
|
|
+ if( gScanningMode != TS_MODE_SOFT_SCAN )
|
|
+ {
|
|
+ //
|
|
+ // Disable the touch screen scanning state machine by clearing
|
|
+ // the ENABLE bit.
|
|
+ //
|
|
+ outl( TSSETUP_DEFAULT, TSSetup );
|
|
+
|
|
+ //
|
|
+ // Set the TIN bit so we can do manual touchscreen polling.
|
|
+ //
|
|
+ uiDevCfg = inl(EP93XX_SYSCON_DEVICE_CONFIG );
|
|
+ SysconSetLocked( EP93XX_SYSCON_DEVICE_CONFIG, (uiDevCfg | EP93XX_SYSCON_DEVCFG_TIN) );
|
|
+ }
|
|
+
|
|
+ //
|
|
+ // Set the switch register up for the first ADC reading
|
|
+ //
|
|
+ ep93xx_ts_set_direct( sSwitchSettings.uiSwitchZ1 );
|
|
+
|
|
+ //
|
|
+ // Initialize our software state machine to know which ADC
|
|
+ // reading to take
|
|
+ //
|
|
+ sTouch.state = TS_STATE_Z1;
|
|
+
|
|
+ //
|
|
+ // Set the timer so after a mSec or two settling delay it will
|
|
+ // take the first ADC reading.
|
|
+ //
|
|
+ Set_Timer2_uSec( EP93XX_TS_PER_POINT_DELAY_USEC );
|
|
+
|
|
+ //
|
|
+ // Note that we are in sw scanning mode not hw scanning mode.
|
|
+ //
|
|
+ gScanningMode = TS_MODE_SOFT_SCAN;
|
|
+
|
|
+}
|
|
+
|
|
+static void Set_Timer2_uSec( unsigned int uiDelay_uSec )
|
|
+{
|
|
+ unsigned int uiClockTicks;
|
|
+
|
|
+ /*
|
|
+ * Stop timer 2
|
|
+ */
|
|
+ outl( 0, TIMER2CONTROL );
|
|
+
|
|
+ uiClockTicks = ((uiDelay_uSec * 508) + 999) / 1000;
|
|
+ outl( uiClockTicks, TIMER2LOAD );
|
|
+ outl( uiClockTicks, TIMER2VALUE );
|
|
+
|
|
+ /*
|
|
+ * Set up Timer 2 for 508 kHz clock and periodic mode.
|
|
+ */
|
|
+ outl( 0xC8, TIMER2CONTROL );
|
|
+
|
|
+}
|
|
+
|
|
+static void Stop_Timer2(void)
|
|
+{
|
|
+ outl( 0, TIMER2CONTROL );
|
|
+}
|
|
+
|
|
+/*
|
|
+ * Initialization and exit routines
|
|
+ */
|
|
+int __init ep93xx_ts_init(void)
|
|
+{
|
|
+ int retval;
|
|
+
|
|
+ //printk("ep93xx_ts_init\n");
|
|
+
|
|
+ // printk("request Touchscreen interrupt.\n");
|
|
+ retval = request_irq( IRQ_EP93XX_TOUCH, ep93xx_ts_isr, IRQF_DISABLED, "ep93xx_ts", 0);
|
|
+ if( retval )
|
|
+ {
|
|
+ printk(KERN_WARNING "ep93xx_ts: failed to get touchscreen IRQ\n");
|
|
+ return retval;
|
|
+ }
|
|
+
|
|
+ // printk("Request Timer interrupt.\n");
|
|
+ retval = request_irq( IRQ_EP93XX_TIMER2, ep93xx_timer2_isr,
|
|
+ IRQF_DISABLED, "ep93xx_timer2", 0);
|
|
+ if( retval )
|
|
+ {
|
|
+ printk(KERN_WARNING "ep93xx_ts: failed to get timer2 IRQ\n");
|
|
+ return retval;
|
|
+ }
|
|
+
|
|
+ // printk("Register Touchscreen Driver\n");
|
|
+ misc_register(&ep93xx_ts_miscdev);
|
|
+
|
|
+ sTouch.state = TS_STATE_STOPPED;
|
|
+ gScanningMode = TS_MODE_UN_INITIALIZED;
|
|
+
|
|
+ printk(KERN_NOTICE "ep93xx touchscreen driver configured for 4-wire operation\n");
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+void __exit
|
|
+ep93xx_ts_exit(void)
|
|
+{
|
|
+ DPRINTK("ep93xx_ts_exit\n");
|
|
+
|
|
+ Stop_Timer2();
|
|
+
|
|
+ free_irq(IRQ_EP93XX_TOUCH, 0);
|
|
+ free_irq(IRQ_EP93XX_TIMER2, 0);
|
|
+
|
|
+ misc_deregister(&ep93xx_ts_miscdev);
|
|
+}
|
|
+
|
|
+module_init(ep93xx_ts_init);
|
|
+module_exit(ep93xx_ts_exit);
|
|
+
|
|
+MODULE_DESCRIPTION("Cirrus EP93xx touchscreen driver");
|
|
+MODULE_SUPPORTED_DEVICE("touchscreen/ep93xx");
|
|
Index: linux-2.6.30.9/drivers/input/touchscreen/ep93xx_ts.h
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ linux-2.6.30.9/drivers/input/touchscreen/ep93xx_ts.h 2009-11-24 21:00:45.000000000 +0100
|
|
@@ -0,0 +1,53 @@
|
|
+/*
|
|
+ * ep93xx_ts.h
|
|
+ *
|
|
+ * The contents of this file are subject to the Mozilla Public License
|
|
+ * Version 1.1 (the "License"); you may not use this file except in
|
|
+ * compliance with the License. You may obtain a copy of the License
|
|
+ * at http://www.mozilla.org/MPL/
|
|
+ *
|
|
+ * Software distributed under the License is distributed on an "AS IS"
|
|
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
|
+ * the License for the specific language governing rights and
|
|
+ * limitations under the License.
|
|
+ *
|
|
+ * The initial developer of the original code is David A. Hinds
|
|
+ * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
|
|
+ * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
|
|
+ *
|
|
+ * Alternatively, the contents of this file may be used under the
|
|
+ * terms of the GNU General Public License version 2 (the "GPL"), in
|
|
+ * which case the provisions of the GPL are applicable instead of the
|
|
+ * above. If you wish to allow the use of your version of this file
|
|
+ * only under the terms of the GPL and not to allow others to use
|
|
+ * your version of this file under the MPL, indicate your decision by
|
|
+ * deleting the provisions above and replace them with the notice and
|
|
+ * other provisions required by the GPL. If you do not delete the
|
|
+ * provisions above, a recipient may use your version of this file
|
|
+ * under either the MPL or the GPL.
|
|
+ */
|
|
+
|
|
+#ifndef _LINUX_EP93XX_TS_H
|
|
+#define _LINUX_EP93XX_TS_H
|
|
+
|
|
+/*touchscreen register defines*/
|
|
+#define SYSCON_KTDIV EP93XX_SYSCON_KEY_TOUCH_CLOCK_DIV
|
|
+#define SYSCON_SWLOCK EP93XX_SYSCON_SWLOCK
|
|
+#define TSSetup EP93XX_TOUCHSCREEN_TSSetup
|
|
+#define TSXYMaxMin EP93XX_TOUCHSCREEN_TSXYMaxMin
|
|
+#define TSXYResult EP93XX_TOUCHSCREEN_TSDischarge
|
|
+#define TSDischarge EP93XX_TOUCHSCREEN_TSDischarge
|
|
+#define TSXSample EP93XX_TOUCHSCREEN_TSXSample
|
|
+#define TSYSample EP93XX_TOUCHSCREEN_TSYSample
|
|
+#define TSDirect EP93XX_TOUCHSCREEN_TSDirect
|
|
+#define TSDetect EP93XX_TOUCHSCREEN_TSDetect
|
|
+#define TSSWLock EP93XX_TOUCHSCREEN_TSSWLock
|
|
+#define TSSetup2 EP93XX_TOUCHSCREEN_TSSetup2
|
|
+
|
|
+
|
|
+//#define SYSCON_DEVCFG EP93XX_SYSCON_DEVICE_CONFIG
|
|
+#define TIMER2CONTROL EP93XX_TIMER2_CONTROL
|
|
+#define TIMER2LOAD EP93XX_TIMER2_LOAD
|
|
+#define TIMER2VALUE EP93XX_TIMER2_VALUE
|
|
+#define TIMER2CLEAR EP93XX_TIMER2_CLEAR
|
|
+#endif
|
|
Index: linux-2.6.30.9/arch/arm/mach-ep93xx/include/mach/hardware.h
|
|
===================================================================
|
|
--- linux-2.6.30.9.orig/arch/arm/mach-ep93xx/include/mach/hardware.h 2009-11-24 21:00:18.000000000 +0100
|
|
+++ linux-2.6.30.9/arch/arm/mach-ep93xx/include/mach/hardware.h 2009-11-24 21:09:21.000000000 +0100
|
|
@@ -7,6 +7,7 @@
|
|
#include "ep93xx-regs.h"
|
|
|
|
#define pcibios_assign_all_busses() 0
|
|
+#include "regs_touch.h"
|
|
|
|
#include "platform.h"
|
|
|
|
Index: linux-2.6.30.9/arch/arm/mach-ep93xx/include/mach/regs_touch.h
|
|
===================================================================
|
|
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
|
|
+++ linux-2.6.30.9/arch/arm/mach-ep93xx/include/mach/regs_touch.h 2009-11-24 21:00:45.000000000 +0100
|
|
@@ -0,0 +1,95 @@
|
|
+/*=============================================================================
|
|
+ *
|
|
+ * FILE: regs_touch.h
|
|
+ *
|
|
+ * DESCRIPTION: Analog Touchscreen Register Definition
|
|
+ *
|
|
+ * Copyright Cirrus Logic, 2001-2003
|
|
+ *
|
|
+ * This program is free software; you can redistribute it and/or modify
|
|
+ * it under the terms of the GNU General Public License as published by
|
|
+ * the Free Software Foundation; either version 2 of the License, or
|
|
+ * (at your option) any later version.
|
|
+ *
|
|
+ * This program is distributed in the hope that it will be useful,
|
|
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
+ * GNU General Public License for more details.
|
|
+ *
|
|
+ * You should have received a copy of the GNU General Public License
|
|
+ * along with this program; if not, write to the Free Software
|
|
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
+ *=============================================================================
|
|
+ */
|
|
+#ifndef _REGS_TOUCH_H_
|
|
+#define _REGS_TOUCH_H_
|
|
+
|
|
+/*
|
|
+ *-----------------------------------------------------------------------------
|
|
+ * Individual bit #defines
|
|
+ *-----------------------------------------------------------------------------
|
|
+ */
|
|
+#define TSSETUP_SDLY_MASK 0x000003FF
|
|
+#define TSSETUP_SDLY_SHIFT 0
|
|
+#define TSSETUP_NSMP_4 0x00000000
|
|
+#define TSSETUP_NSMP_8 0x00000400
|
|
+#define TSSETUP_NSMP_16 0x00000800
|
|
+#define TSSETUP_NSMP_32 0x00000C00
|
|
+#define TSSETUP_NSMP_MASK 0x00000C00
|
|
+#define TSSETUP_DEV_4 0x00000000
|
|
+#define TSSETUP_DEV_8 0x00001000
|
|
+#define TSSETUP_DEV_12 0x00002000
|
|
+#define TSSETUP_DEV_16 0x00003000
|
|
+#define TSSETUP_DEV_24 0x00004000
|
|
+#define TSSETUP_DEV_32 0x00005000
|
|
+#define TSSETUP_DEV_64 0x00006000
|
|
+#define TSSETUP_DEV_128 0x00007000
|
|
+#define TSSETUP_ENABLE 0x00008000
|
|
+#define TSSETUP_DLY_MASK 0x03FF0000
|
|
+#define TSSETUP_DLY_SHIFT 16
|
|
+#define TSSETUP_TDTCT 0x80000000
|
|
+
|
|
+#define TSMAXMIN_XMIN_MASK 0x000000FF
|
|
+#define TSMAXMIN_XMIN_SHIFT 0
|
|
+#define TSMAXMIN_YMIN_MASK 0x0000FF00
|
|
+#define TSMAXMIN_YMIN_SHIFT 8
|
|
+#define TSMAXMIN_XMAX_MASK 0x00FF0000
|
|
+#define TSMAXMIN_XMAX_SHIFT 16
|
|
+#define TSMAXMIN_YMAX_MASK 0xFF000000
|
|
+#define TSMAXMIN_YMAX_SHIFT 24
|
|
+
|
|
+#define TSXYRESULT_X_MASK 0x00000FFF
|
|
+#define TSXYRESULT_X_SHIFT 0
|
|
+#define TSXYRESULT_AD_MASK 0x0000FFFF
|
|
+#define TSXYRESULT_AD_SHIFT 0
|
|
+#define TSXYRESULT_Y_MASK 0x0FFF0000
|
|
+#define TSXYRESULT_Y_SHIFT 16
|
|
+#define TSXYRESULT_SDR 0x80000000
|
|
+
|
|
+#define TSX_SAMPLE_MASK 0x00003FFF
|
|
+#define TSX_SAMPLE_SHIFT 0x00
|
|
+#define TSY_SAMPLE_MASK 0x3FFF0000
|
|
+#define TSY_SAMPLE_SHIFT 0x10
|
|
+
|
|
+#define TSSETUP2_TINT 0x00000001
|
|
+#define TSSETUP2_NICOR 0x00000002
|
|
+#define TSSETUP2_PINT 0x00000004
|
|
+#define TSSETUP2_PENSTS 0x00000008
|
|
+#define TSSETUP2_PINTEN 0x00000010
|
|
+#define TSSETUP2_DEVINT 0x00000020
|
|
+#define TSSETUP2_DINTEN 0x00000040
|
|
+#define TSSETUP2_DTMEN 0x00000080
|
|
+#define TSSETUP2_DISDEV 0x00000100
|
|
+#define TSSETUP2_NSIGND 0x00000200
|
|
+#define TSSETUP2_S28EN 0x00000400
|
|
+#define TSSETUP2_RINTEN 0x00000800
|
|
+
|
|
+#define TSXYRESULT_SDR 0x80000000
|
|
+
|
|
+/*
|
|
+ *-----------------------------------------------------------------------------
|
|
+ *-----------------------------------------------------------------------------
|
|
+ */
|
|
+
|
|
+
|
|
+#endif /* _REGS_TOUCH_H_ */
|