Input: remove now deprecated corgi_ts.c touchscreen driver (2adaabd4) · Commits · 戴 / test

drivers/input/touchscreen/Kconfig

+0 −16

Original line number	Diff line number	Diff line
		@@ -99,22 +99,6 @@ config TOUCHSCREEN_BITSY
		To compile this driver as a module, choose M here: the
		module will be called h3600_ts_input.

		config TOUCHSCREEN_CORGI
		tristate "SharpSL (Corgi and Spitz series) touchscreen driver (DEPRECATED)"
		depends on PXA_SHARPSL
		select CORGI_SSP_DEPRECATED
		help
		Say Y here to enable the driver for the touchscreen on the
		Sharp SL-C7xx and SL-Cxx00 series of PDAs.

		If unsure, say N.

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

		NOTE: this driver is deprecated, try enable SPI and generic
		ADS7846-based touchscreen driver.

		config TOUCHSCREEN_DA9034
		tristate "Touchscreen support for Dialog Semiconductor DA9034"
		depends on PMIC_DA903X

drivers/input/touchscreen/Makefile

+0 −1

Original line number	Diff line number	Diff line
		@@ -12,7 +12,6 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
		obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
		obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
		obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
		obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o
		obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o
		obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
		obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o

drivers/input/touchscreen/corgi_ts.c

deleted100644 → 0

+0 −385

Original line number	Diff line number	Diff line
		/*
		* Touchscreen driver for Sharp SL-C7xx and SL-Cxx00 models
		*
		* Copyright (c) 2004-2005 Richard Purdie
		*
		* 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/delay.h>
		#include <linux/platform_device.h>
		#include <linux/init.h>
		#include <linux/input.h>
		#include <linux/interrupt.h>
		#include <linux/module.h>
		#include <linux/slab.h>
		#include <linux/irq.h>

		#include <mach/sharpsl.h>
		#include <mach/hardware.h>
		#include <mach/pxa2xx-gpio.h>


		#define PWR_MODE_ACTIVE 0
		#define PWR_MODE_SUSPEND 1

		#define X_AXIS_MAX 3830
		#define X_AXIS_MIN 150
		#define Y_AXIS_MAX 3830
		#define Y_AXIS_MIN 190
		#define PRESSURE_MIN 0
		#define PRESSURE_MAX 15000

		struct ts_event {
		short pressure;
		short x;
		short y;
		};

		struct corgi_ts {
		struct input_dev *input;
		struct timer_list timer;
		struct ts_event tc;
		int pendown;
		int power_mode;
		int irq_gpio;
		struct corgits_machinfo *machinfo;
		};

		#ifdef CONFIG_PXA25x
		#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C0, 0" : "=r"(a))
		#define PMNC_GET(x) asm volatile ("mrc p14, 0, %0, C0, C0, 0" : "=r"(x))
		#define PMNC_SET(x) asm volatile ("mcr p14, 0, %0, C0, C0, 0" : : "r"(x))
		#endif
		#ifdef CONFIG_PXA27x
		#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C1, 0" : "=r"(a))
		#define PMNC_GET(x) asm volatile ("mrc p14, 0, %0, C0, C1, 0" : "=r"(x))
		#define PMNC_SET(x) asm volatile ("mcr p14, 0, %0, C0, C1, 0" : : "r"(x))
		#endif

		/* ADS7846 Touch Screen Controller bit definitions */
		#define ADSCTRL_PD0 (1u << 0) /* PD0 */
		#define ADSCTRL_PD1 (1u << 1) /* PD1 */
		#define ADSCTRL_DFR (1u << 2) /* SER/DFR */
		#define ADSCTRL_MOD (1u << 3) /* Mode */
		#define ADSCTRL_ADR_SH 4 /* Address setting */
		#define ADSCTRL_STS (1u << 7) /* Start Bit */

		/* External Functions */
		extern unsigned int get_clk_frequency_khz(int info);

		static unsigned long calc_waittime(struct corgi_ts *corgi_ts)
		{
		unsigned long hsync_invperiod = corgi_ts->machinfo->get_hsync_invperiod();

		if (hsync_invperiod)
		return get_clk_frequency_khz(0)*1000/hsync_invperiod;
		else
		return 0;
		}

		static int sync_receive_data_send_cmd(struct corgi_ts *corgi_ts, int doRecive, int doSend,
		unsigned int address, unsigned long wait_time)
		{
		unsigned long timer1 = 0, timer2, pmnc = 0;
		int pos = 0;

		if (wait_time && doSend) {
		PMNC_GET(pmnc);
		if (!(pmnc & 0x01))
		PMNC_SET(0x01);

		/* polling HSync */
		corgi_ts->machinfo->wait_hsync();
		/* get CCNT */
		CCNT(timer1);
		}

		if (doRecive)
		pos = corgi_ssp_ads7846_get();

		if (doSend) {
		int cmd = ADSCTRL_PD0 \| ADSCTRL_PD1 \| (address << ADSCTRL_ADR_SH) \| ADSCTRL_STS;
		/* dummy command */
		corgi_ssp_ads7846_put(cmd);
		corgi_ssp_ads7846_get();

		if (wait_time) {
		/* Wait after HSync */
		CCNT(timer2);
		if (timer2-timer1 > wait_time) {
		/* too slow - timeout, try again */
		corgi_ts->machinfo->wait_hsync();
		/* get CCNT */
		CCNT(timer1);
		/* Wait after HSync */
		CCNT(timer2);
		}
		while (timer2 - timer1 < wait_time)
		CCNT(timer2);
		}
		corgi_ssp_ads7846_put(cmd);
		if (wait_time && !(pmnc & 0x01))
		PMNC_SET(pmnc);
		}
		return pos;
		}

		static int read_xydata(struct corgi_ts *corgi_ts)
		{
		unsigned int x, y, z1, z2;
		unsigned long flags, wait_time;

		/* critical section */
		local_irq_save(flags);
		corgi_ssp_ads7846_lock();
		wait_time = calc_waittime(corgi_ts);

		/* Y-axis */
		sync_receive_data_send_cmd(corgi_ts, 0, 1, 1u, wait_time);

		/* Y-axis */
		sync_receive_data_send_cmd(corgi_ts, 1, 1, 1u, wait_time);

		/* X-axis */
		y = sync_receive_data_send_cmd(corgi_ts, 1, 1, 5u, wait_time);

		/* Z1 */
		x = sync_receive_data_send_cmd(corgi_ts, 1, 1, 3u, wait_time);

		/* Z2 */
		z1 = sync_receive_data_send_cmd(corgi_ts, 1, 1, 4u, wait_time);
		z2 = sync_receive_data_send_cmd(corgi_ts, 1, 0, 4u, wait_time);

		/* Power-Down Enable */
		corgi_ssp_ads7846_put((1u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		corgi_ssp_ads7846_get();

		corgi_ssp_ads7846_unlock();
		local_irq_restore(flags);

		if (x== 0 \|\| y == 0 \|\| z1 == 0 \|\| (x * (z2 - z1) / z1) >= 15000) {
		corgi_ts->tc.pressure = 0;
		return 0;
		}

		corgi_ts->tc.x = x;
		corgi_ts->tc.y = y;
		corgi_ts->tc.pressure = (x * (z2 - z1)) / z1;
		return 1;
		}

		static void new_data(struct corgi_ts *corgi_ts)
		{
		struct input_dev *dev = corgi_ts->input;

		if (corgi_ts->power_mode != PWR_MODE_ACTIVE)
		return;

		if (!corgi_ts->tc.pressure && corgi_ts->pendown == 0)
		return;

		input_report_abs(dev, ABS_X, corgi_ts->tc.x);
		input_report_abs(dev, ABS_Y, corgi_ts->tc.y);
		input_report_abs(dev, ABS_PRESSURE, corgi_ts->tc.pressure);
		input_report_key(dev, BTN_TOUCH, corgi_ts->pendown);
		input_sync(dev);
		}

		static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer)
		{
		if ((GPLR(IRQ_TO_GPIO(corgi_ts->irq_gpio)) & GPIO_bit(IRQ_TO_GPIO(corgi_ts->irq_gpio))) == 0) {
		/* Disable Interrupt */
		set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_NONE);
		if (read_xydata(corgi_ts)) {
		corgi_ts->pendown = 1;
		new_data(corgi_ts);
		}
		mod_timer(&corgi_ts->timer, jiffies + HZ / 100);
		} else {
		if (corgi_ts->pendown == 1 \|\| corgi_ts->pendown == 2) {
		mod_timer(&corgi_ts->timer, jiffies + HZ / 100);
		corgi_ts->pendown++;
		return;
		}

		if (corgi_ts->pendown) {
		corgi_ts->tc.pressure = 0;
		new_data(corgi_ts);
		}

		/* Enable Falling Edge */
		set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING);
		corgi_ts->pendown = 0;
		}
		}

		static void corgi_ts_timer(unsigned long data)
		{
		struct corgi_ts corgits_data = (struct corgi_ts ) data;

		ts_interrupt_main(corgits_data, 1);
		}

		static irqreturn_t ts_interrupt(int irq, void *dev_id)
		{
		struct corgi_ts *corgits_data = dev_id;

		ts_interrupt_main(corgits_data, 0);
		return IRQ_HANDLED;
		}

		#ifdef CONFIG_PM
		static int corgits_suspend(struct platform_device *dev, pm_message_t state)
		{
		struct corgi_ts *corgi_ts = platform_get_drvdata(dev);

		if (corgi_ts->pendown) {
		del_timer_sync(&corgi_ts->timer);
		corgi_ts->tc.pressure = 0;
		new_data(corgi_ts);
		corgi_ts->pendown = 0;
		}
		corgi_ts->power_mode = PWR_MODE_SUSPEND;

		corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);

		return 0;
		}

		static int corgits_resume(struct platform_device *dev)
		{
		struct corgi_ts *corgi_ts = platform_get_drvdata(dev);

		corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		/* Enable Falling Edge */
		set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING);
		corgi_ts->power_mode = PWR_MODE_ACTIVE;

		return 0;
		}
		#else
		#define corgits_suspend NULL
		#define corgits_resume NULL
		#endif

		static int __devinit corgits_probe(struct platform_device *pdev)
		{
		struct corgi_ts *corgi_ts;
		struct input_dev *input_dev;
		int err = -ENOMEM;

		corgi_ts = kzalloc(sizeof(struct corgi_ts), GFP_KERNEL);
		input_dev = input_allocate_device();
		if (!corgi_ts \|\| !input_dev)
		goto fail1;

		platform_set_drvdata(pdev, corgi_ts);

		corgi_ts->machinfo = pdev->dev.platform_data;
		corgi_ts->irq_gpio = platform_get_irq(pdev, 0);

		if (corgi_ts->irq_gpio < 0) {
		err = -ENODEV;
		goto fail1;
		}

		corgi_ts->input = input_dev;

		init_timer(&corgi_ts->timer);
		corgi_ts->timer.data = (unsigned long) corgi_ts;
		corgi_ts->timer.function = corgi_ts_timer;

		input_dev->name = "Corgi Touchscreen";
		input_dev->phys = "corgits/input0";
		input_dev->id.bustype = BUS_HOST;
		input_dev->id.vendor = 0x0001;
		input_dev->id.product = 0x0002;
		input_dev->id.version = 0x0100;
		input_dev->dev.parent = &pdev->dev;

		input_dev->evbit[0] = BIT_MASK(EV_KEY) \| BIT_MASK(EV_ABS);
		input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
		input_set_abs_params(input_dev, ABS_X, X_AXIS_MIN, X_AXIS_MAX, 0, 0);
		input_set_abs_params(input_dev, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, 0, 0);
		input_set_abs_params(input_dev, ABS_PRESSURE, PRESSURE_MIN, PRESSURE_MAX, 0, 0);

		pxa_gpio_mode(IRQ_TO_GPIO(corgi_ts->irq_gpio) \| GPIO_IN);

		/* Initiaize ADS7846 Difference Reference mode */
		corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		mdelay(5);
		corgi_ssp_ads7846_putget((3u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		mdelay(5);
		corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		mdelay(5);
		corgi_ssp_ads7846_putget((5u << ADSCTRL_ADR_SH) \| ADSCTRL_STS);
		mdelay(5);

		if (request_irq(corgi_ts->irq_gpio, ts_interrupt, IRQF_DISABLED, "ts", corgi_ts)) {
		err = -EBUSY;
		goto fail1;
		}

		err = input_register_device(corgi_ts->input);
		if (err)
		goto fail2;

		corgi_ts->power_mode = PWR_MODE_ACTIVE;

		/* Enable Falling Edge */
		set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING);

		return 0;

		fail2: free_irq(corgi_ts->irq_gpio, corgi_ts);
		fail1: input_free_device(input_dev);
		kfree(corgi_ts);
		return err;
		}

		static int __devexit corgits_remove(struct platform_device *pdev)
		{
		struct corgi_ts *corgi_ts = platform_get_drvdata(pdev);

		free_irq(corgi_ts->irq_gpio, corgi_ts);
		del_timer_sync(&corgi_ts->timer);
		corgi_ts->machinfo->put_hsync();
		input_unregister_device(corgi_ts->input);
		kfree(corgi_ts);

		return 0;
		}

		static struct platform_driver corgits_driver = {
		.probe = corgits_probe,
		.remove = __devexit_p(corgits_remove),
		.suspend = corgits_suspend,
		.resume = corgits_resume,
		.driver = {
		.name = "corgi-ts",
		.owner = THIS_MODULE,
		},
		};

		static int __init corgits_init(void)
		{
		return platform_driver_register(&corgits_driver);
		}

		static void __exit corgits_exit(void)
		{
		platform_driver_unregister(&corgits_driver);
		}

		module_init(corgits_init);
		module_exit(corgits_exit);

		MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
		MODULE_DESCRIPTION("Corgi TouchScreen Driver");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:corgi-ts");

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