Input: remove Compaq iPAQ H3600 (Bitsy) touchscreen driver (852d20ae) · Commits · e / devices / android_kernel_sony_msm8994

drivers/input/touchscreen/Kconfig

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Original line number	Diff line number	Diff line
		@@ -111,18 +111,6 @@ config TOUCHSCREEN_AUO_PIXCIR
		To compile this driver as a module, choose M here: the
		module will be called auo-pixcir-ts.

		config TOUCHSCREEN_BITSY
		tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
		depends on SA1100_BITSY
		select SERIO
		help
		Say Y here if you have the h3600 (Bitsy) touchscreen.

		If unsure, say N.

		To compile this driver as a module, choose M here: the
		module will be called h3600_ts_input.

		config TOUCHSCREEN_BU21013
		tristate "BU21013 based touch panel controllers"
		depends on I2C

drivers/input/touchscreen/Makefile

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Original line number	Diff line number	Diff line
		@@ -15,7 +15,6 @@ obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
		obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o
		obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
		obj-$(CONFIG_TOUCHSCREEN_AUO_PIXCIR) += auo-pixcir-ts.o
		obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
		obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
		obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o
		obj-$(CONFIG_TOUCHSCREEN_CYTTSP_CORE) += cyttsp_core.o

drivers/input/touchscreen/h3600_ts_input.c

deleted100644 → 0

+0 −479

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2001 "Crazy" James Simmons jsimmons@transvirtual.com
		*
		* Sponsored by Transvirtual Technology.
		*
		* Derived from the code in h3600_ts.[ch] by Charles Flynn
		*/

		/*
		* Driver for the h3600 Touch Screen and other Atmel controlled devices.
		*/

		/*
		* 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
		*
		* Should you need to contact me, the author, you can do so by
		* e-mail - mail your message to <jsimmons@transvirtual.com>.
		*/

		#include <linux/errno.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/slab.h>
		#include <linux/input.h>
		#include <linux/serio.h>
		#include <linux/init.h>
		#include <linux/delay.h>

		/* SA1100 serial defines */
		#include <mach/hardware.h>
		#include <mach/irqs.h>

		#define DRIVER_DESC "H3600 touchscreen driver"

		MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
		MODULE_DESCRIPTION(DRIVER_DESC);
		MODULE_LICENSE("GPL");

		/*
		* Definitions & global arrays.
		*/

		/* The start and end of frame characters SOF and EOF */
		#define CHAR_SOF 0x02
		#define CHAR_EOF 0x03
		#define FRAME_OVERHEAD 3 /* CHAR_SOF,CHAR_EOF,LENGTH = 3 */

		/*
		Atmel events and response IDs contained in frame.
		Programmer has no control over these numbers.
		TODO there are holes - specifically 1,7,0x0a
		*/
		#define VERSION_ID 0 /* Get Version (request/response) */
		#define KEYBD_ID 2 /* Keyboard (event) */
		#define TOUCHS_ID 3 /* Touch Screen (event)*/
		#define EEPROM_READ_ID 4 /* (request/response) */
		#define EEPROM_WRITE_ID 5 /* (request/response) */
		#define THERMAL_ID 6 /* (request/response) */
		#define NOTIFY_LED_ID 8 /* (request/response) */
		#define BATTERY_ID 9 /* (request/response) */
		#define SPI_READ_ID 0x0b /* ( request/response) */
		#define SPI_WRITE_ID 0x0c /* ( request/response) */
		#define FLITE_ID 0x0d /* backlight ( request/response) */
		#define STX_ID 0xa1 /* extension pack status (req/resp) */

		#define MAX_ID 14

		#define H3600_MAX_LENGTH 16
		#define H3600_KEY 0xf

		#define H3600_SCANCODE_RECORD 1 /* 1 -> record button */
		#define H3600_SCANCODE_CALENDAR 2 /* 2 -> calendar */
		#define H3600_SCANCODE_CONTACTS 3 /* 3 -> contact */
		#define H3600_SCANCODE_Q 4 /* 4 -> Q button */
		#define H3600_SCANCODE_START 5 /* 5 -> start menu */
		#define H3600_SCANCODE_UP 6 /* 6 -> up */
		#define H3600_SCANCODE_RIGHT 7 /* 7 -> right */
		#define H3600_SCANCODE_LEFT 8 /* 8 -> left */
		#define H3600_SCANCODE_DOWN 9 /* 9 -> down */

		/*
		* Per-touchscreen data.
		*/
		struct h3600_dev {
		struct input_dev *dev;
		struct serio *serio;
		unsigned char event; /* event ID from packet */
		unsigned char chksum;
		unsigned char len;
		unsigned char idx;
		unsigned char buf[H3600_MAX_LENGTH];
		char phys[32];
		};

		static irqreturn_t action_button_handler(int irq, void *dev_id)
		{
		int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
		struct input_dev *dev = dev_id;

		input_report_key(dev, KEY_ENTER, down);
		input_sync(dev);

		return IRQ_HANDLED;
		}

		static irqreturn_t npower_button_handler(int irq, void *dev_id)
		{
		int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
		struct input_dev *dev = dev_id;

		/*
		* This interrupt is only called when we release the key. So we have
		* to fake a key press.
		*/
		input_report_key(dev, KEY_SUSPEND, 1);
		input_report_key(dev, KEY_SUSPEND, down);
		input_sync(dev);

		return IRQ_HANDLED;
		}

		#ifdef CONFIG_PM

		static int flite_brightness = 25;

		enum flite_pwr {
		FLITE_PWR_OFF = 0,
		FLITE_PWR_ON = 1
		};

		/*
		* h3600_flite_power: enables or disables power to frontlight, using last bright */
		unsigned int h3600_flite_power(struct input_dev *dev, enum flite_pwr pwr)
		{
		unsigned char brightness = (pwr == FLITE_PWR_OFF) ? 0 : flite_brightness;
		struct h3600_dev *ts = input_get_drvdata(dev);

		/* Must be in this order */
		serio_write(ts->serio, 1);
		serio_write(ts->serio, pwr);
		serio_write(ts->serio, brightness);

		return 0;
		}

		#endif

		/*
		* This function translates the native event packets to linux input event
		* packets. Some packets coming from serial are not touchscreen related. In
		* this case we send them off to be processed elsewhere.
		*/
		static void h3600ts_process_packet(struct h3600_dev *ts)
		{
		struct input_dev *dev = ts->dev;
		static int touched = 0;
		int key, down = 0;

		switch (ts->event) {
		/*
		Buttons - returned as a single byte
		7 6 5 4 3 2 1 0
		S x x x N N N N

		S switch state ( 0=pressed 1=released)
		x Unused.
		NNNN switch number 0-15

		Note: This is true for non interrupt generated key events.
		*/
		case KEYBD_ID:
		down = (ts->buf[0] & 0x80) ? 0 : 1;

		switch (ts->buf[0] & 0x7f) {
		case H3600_SCANCODE_RECORD:
		key = KEY_RECORD;
		break;
		case H3600_SCANCODE_CALENDAR:
		key = KEY_PROG1;
		break;
		case H3600_SCANCODE_CONTACTS:
		key = KEY_PROG2;
		break;
		case H3600_SCANCODE_Q:
		key = KEY_Q;
		break;
		case H3600_SCANCODE_START:
		key = KEY_PROG3;
		break;
		case H3600_SCANCODE_UP:
		key = KEY_UP;
		break;
		case H3600_SCANCODE_RIGHT:
		key = KEY_RIGHT;
		break;
		case H3600_SCANCODE_LEFT:
		key = KEY_LEFT;
		break;
		case H3600_SCANCODE_DOWN:
		key = KEY_DOWN;
		break;
		default:
		key = 0;
		}
		if (key)
		input_report_key(dev, key, down);
		break;
		/*
		* Native touchscreen event data is formatted as shown below:-
		*
		* +-------+-------+-------+-------+
		* \| Xmsb \| Xlsb \| Ymsb \| Ylsb \|
		* +-------+-------+-------+-------+
		* byte 0 1 2 3
		*/
		case TOUCHS_ID:
		if (!touched) {
		input_report_key(dev, BTN_TOUCH, 1);
		touched = 1;
		}

		if (ts->len) {
		unsigned short x, y;

		x = ts->buf[0]; x <<= 8; x += ts->buf[1];
		y = ts->buf[2]; y <<= 8; y += ts->buf[3];

		input_report_abs(dev, ABS_X, x);
		input_report_abs(dev, ABS_Y, y);
		} else {
		input_report_key(dev, BTN_TOUCH, 0);
		touched = 0;
		}
		break;
		default:
		/* Send a non input event elsewhere */
		break;
		}

		input_sync(dev);
		}

		/*
		* h3600ts_event() handles events from the input module.
		*/
		static int h3600ts_event(struct input_dev *dev, unsigned int type,
		unsigned int code, int value)
		{
		#if 0
		struct h3600_dev *ts = input_get_drvdata(dev);

		switch (type) {
		case EV_LED: {
		// serio_write(ts->serio, SOME_CMD);
		return 0;
		}
		}
		return -1;
		#endif
		return 0;
		}

		/*
		Frame format
		byte 1 2 3 len + 4
		+-------+---------------+---------------+--=------------+
		\|SOF \|id \|len \| len bytes \| Chksum \|
		+-------+---------------+---------------+--=------------+
		bit 0 7 8 11 12 15 16

		+-------+---------------+-------+
		\|SOF \|id \|0 \|Chksum \| - Note Chksum does not include SOF
		+-------+---------------+-------+
		bit 0 7 8 11 12 15 16

		*/

		static int state;

		/* decode States */
		#define STATE_SOF 0 /* start of FRAME */
		#define STATE_ID 1 /* state where we decode the ID & len */
		#define STATE_DATA 2 /* state where we decode data */
		#define STATE_EOF 3 /* state where we decode checksum or EOF */

		static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
		unsigned int flags)
		{
		struct h3600_dev *ts = serio_get_drvdata(serio);

		/*
		* We have a new frame coming in.
		*/
		switch (state) {
		case STATE_SOF:
		if (data == CHAR_SOF)
		state = STATE_ID;
		break;
		case STATE_ID:
		ts->event = (data & 0xf0) >> 4;
		ts->len = (data & 0xf);
		ts->idx = 0;
		if (ts->event >= MAX_ID) {
		state = STATE_SOF;
		break;
		}
		ts->chksum = data;
		state = (ts->len > 0) ? STATE_DATA : STATE_EOF;
		break;
		case STATE_DATA:
		ts->chksum += data;
		ts->buf[ts->idx]= data;
		if (++ts->idx == ts->len)
		state = STATE_EOF;
		break;
		case STATE_EOF:
		state = STATE_SOF;
		if (data == CHAR_EOF \|\| data == ts->chksum)
		h3600ts_process_packet(ts);
		break;
		default:
		printk("Error3\n");
		break;
		}

		return IRQ_HANDLED;
		}

		/*
		* h3600ts_connect() is the routine that is called when someone adds a
		* new serio device that supports H3600 protocol and registers it as
		* an input device.
		*/
		static int h3600ts_connect(struct serio serio, struct serio_driver drv)
		{
		struct h3600_dev *ts;
		struct input_dev *input_dev;
		int err;

		ts = kzalloc(sizeof(struct h3600_dev), GFP_KERNEL);
		input_dev = input_allocate_device();
		if (!ts \|\| !input_dev) {
		err = -ENOMEM;
		goto fail1;
		}

		ts->serio = serio;
		ts->dev = input_dev;
		snprintf(ts->phys, sizeof(ts->phys), "%s/input0", serio->phys);

		input_dev->name = "H3600 TouchScreen";
		input_dev->phys = ts->phys;
		input_dev->id.bustype = BUS_RS232;
		input_dev->id.vendor = SERIO_H3600;
		input_dev->id.product = 0x0666; /* FIXME !!! We can ask the hardware */
		input_dev->id.version = 0x0100;
		input_dev->dev.parent = &serio->dev;

		input_set_drvdata(input_dev, ts);

		input_dev->event = h3600ts_event;

		input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS) \|
		BIT_MASK(EV_LED) \| BIT_MASK(EV_PWR);
		input_dev->ledbit[0] = BIT_MASK(LED_SLEEP);
		input_set_abs_params(input_dev, ABS_X, 60, 985, 0, 0);
		input_set_abs_params(input_dev, ABS_Y, 35, 1024, 0, 0);

		set_bit(KEY_RECORD, input_dev->keybit);
		set_bit(KEY_Q, input_dev->keybit);
		set_bit(KEY_PROG1, input_dev->keybit);
		set_bit(KEY_PROG2, input_dev->keybit);
		set_bit(KEY_PROG3, input_dev->keybit);
		set_bit(KEY_UP, input_dev->keybit);
		set_bit(KEY_RIGHT, input_dev->keybit);
		set_bit(KEY_LEFT, input_dev->keybit);
		set_bit(KEY_DOWN, input_dev->keybit);
		set_bit(KEY_ENTER, input_dev->keybit);
		set_bit(KEY_SUSPEND, input_dev->keybit);
		set_bit(BTN_TOUCH, input_dev->keybit);

		/* Device specific stuff */
		set_GPIO_IRQ_edge(GPIO_BITSY_ACTION_BUTTON, GPIO_BOTH_EDGES);
		set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);

		if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
		IRQF_SHARED, "h3600_action", ts->dev)) {
		printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
		err = -EBUSY;
		goto fail1;
		}

		if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
		IRQF_SHARED, "h3600_suspend", ts->dev)) {
		printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
		err = -EBUSY;
		goto fail2;
		}

		serio_set_drvdata(serio, ts);

		err = serio_open(serio, drv);
		if (err)
		goto fail3;

		//h3600_flite_control(1, 25); /* default brightness */
		err = input_register_device(ts->dev);
		if (err)
		goto fail4;

		return 0;

		fail4: serio_close(serio);
		fail3: serio_set_drvdata(serio, NULL);
		free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
		fail2: free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
		fail1: input_free_device(input_dev);
		kfree(ts);
		return err;
		}

		/*
		* h3600ts_disconnect() is the opposite of h3600ts_connect()
		*/

		static void h3600ts_disconnect(struct serio *serio)
		{
		struct h3600_dev *ts = serio_get_drvdata(serio);

		free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
		free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
		input_get_device(ts->dev);
		input_unregister_device(ts->dev);
		serio_close(serio);
		serio_set_drvdata(serio, NULL);
		input_put_device(ts->dev);
		kfree(ts);
		}

		/*
		* The serio driver structure.
		*/

		static struct serio_device_id h3600ts_serio_ids[] = {
		{
		.type = SERIO_RS232,
		.proto = SERIO_H3600,
		.id = SERIO_ANY,
		.extra = SERIO_ANY,
		},
		{ 0 }
		};

		MODULE_DEVICE_TABLE(serio, h3600ts_serio_ids);

		static struct serio_driver h3600ts_drv = {
		.driver = {
		.name = "h3600ts",
		},
		.description = DRIVER_DESC,
		.id_table = h3600ts_serio_ids,
		.interrupt = h3600ts_interrupt,
		.connect = h3600ts_connect,
		.disconnect = h3600ts_disconnect,
		};

		module_serio_driver(h3600ts_drv);