diff options
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/input/touchscreen/Makefile | 1 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7877.c | 16 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7879-i2c.c | 26 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7879-spi.c | 26 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7879.c | 23 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ad7879.h | 4 | ||||
| -rw-r--r-- | drivers/input/touchscreen/ads7846.c | 8 | ||||
| -rw-r--r-- | drivers/input/touchscreen/egalax_ts.c | 303 | ||||
| -rw-r--r-- | drivers/input/touchscreen/usbtouchscreen.c | 36 |
10 files changed, 390 insertions, 69 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 3488ffe1fa0..2b456a915d7 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -177,6 +177,16 @@ config TOUCHSCREEN_EETI To compile this driver as a module, choose M here: the module will be called eeti_ts. +config TOUCHSCREEN_EGALAX + tristate "EETI eGalax multi-touch panel support" + depends on I2C + help + Say Y here to enable support for I2C connected EETI + eGalax multi-touch panels. + + To compile this driver as a module, choose M here: the + module will be called egalax_ts. + config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" select SERIO @@ -541,6 +551,7 @@ config TOUCHSCREEN_USB_COMPOSITE - GoTop Super_Q2/GogoPen/PenPower tablets - JASTEC USB Touch Controller/DigiTech DTR-02U - Zytronic controllers + - Elo TouchSystems 2700 IntelliTouch Have a look at <http://linux.chapter7.ch/touchkit/> for a usage description and the required user-space stuff. @@ -620,6 +631,11 @@ config TOUCHSCREEN_USB_JASTEC bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EXPERT depends on TOUCHSCREEN_USB_COMPOSITE +config TOUCHSCREEN_USB_ELO + default y + bool "Elo TouchSystems 2700 IntelliTouch controller device support" if EXPERT + depends on TOUCHSCREEN_USB_COMPOSITE + config TOUCHSCREEN_USB_E2I default y bool "e2i Touchscreen controller (e.g. from Mimo 740)" diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index f957676035a..a09c546b33b 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o +obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 400131df677..2da9f189e49 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -488,10 +488,10 @@ static ssize_t ad7877_disable_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -518,10 +518,10 @@ static ssize_t ad7877_dac_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -548,10 +548,10 @@ static ssize_t ad7877_gpio3_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -579,10 +579,10 @@ static ssize_t ad7877_gpio4_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c index c789b974c79..c4b51170c95 100644 --- a/drivers/input/touchscreen/ad7879-i2c.c +++ b/drivers/input/touchscreen/ad7879-i2c.c @@ -16,30 +16,6 @@ #define AD7879_DEVID 0x79 /* AD7879-1/AD7889-1 */ -#ifdef CONFIG_PM_SLEEP -static int ad7879_i2c_suspend(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct ad7879 *ts = i2c_get_clientdata(client); - - ad7879_suspend(ts); - - return 0; -} - -static int ad7879_i2c_resume(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct ad7879 *ts = i2c_get_clientdata(client); - - ad7879_resume(ts); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(ad7879_i2c_pm, ad7879_i2c_suspend, ad7879_i2c_resume); - /* All registers are word-sized. * AD7879 uses a high-byte first convention. */ @@ -119,7 +95,7 @@ static struct i2c_driver ad7879_i2c_driver = { .driver = { .name = "ad7879", .owner = THIS_MODULE, - .pm = &ad7879_i2c_pm, + .pm = &ad7879_pm_ops, }, .probe = ad7879_i2c_probe, .remove = __devexit_p(ad7879_i2c_remove), diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c index b1643c8fa7c..8f391ffbf44 100644 --- a/drivers/input/touchscreen/ad7879-spi.c +++ b/drivers/input/touchscreen/ad7879-spi.c @@ -22,30 +22,6 @@ #define AD7879_WRITECMD(reg) (AD7879_CMD(reg)) #define AD7879_READCMD(reg) (AD7879_CMD(reg) | AD7879_CMD_READ) -#ifdef CONFIG_PM_SLEEP -static int ad7879_spi_suspend(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct ad7879 *ts = spi_get_drvdata(spi); - - ad7879_suspend(ts); - - return 0; -} - -static int ad7879_spi_resume(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct ad7879 *ts = spi_get_drvdata(spi); - - ad7879_resume(ts); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume); - /* * ad7879_read/write are only used for initial setup and for sysfs controls. * The main traffic is done in ad7879_collect(). @@ -176,7 +152,7 @@ static struct spi_driver ad7879_spi_driver = { .name = "ad7879", .bus = &spi_bus_type, .owner = THIS_MODULE, - .pm = &ad7879_spi_pm, + .pm = &ad7879_pm_ops, }, .probe = ad7879_spi_probe, .remove = __devexit_p(ad7879_spi_remove), diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index 3b2e9ed2aee..e2482b40da5 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -281,8 +281,11 @@ static void ad7879_close(struct input_dev* input) __ad7879_disable(ts); } -void ad7879_suspend(struct ad7879 *ts) +#ifdef CONFIG_PM_SLEEP +static int ad7879_suspend(struct device *dev) { + struct ad7879 *ts = dev_get_drvdata(dev); + mutex_lock(&ts->input->mutex); if (!ts->suspended && !ts->disabled && ts->input->users) @@ -291,11 +294,14 @@ void ad7879_suspend(struct ad7879 *ts) ts->suspended = true; mutex_unlock(&ts->input->mutex); + + return 0; } -EXPORT_SYMBOL(ad7879_suspend); -void ad7879_resume(struct ad7879 *ts) +static int ad7879_resume(struct device *dev) { + struct ad7879 *ts = dev_get_drvdata(dev); + mutex_lock(&ts->input->mutex); if (ts->suspended && !ts->disabled && ts->input->users) @@ -304,8 +310,13 @@ void ad7879_resume(struct ad7879 *ts) ts->suspended = false; mutex_unlock(&ts->input->mutex); + + return 0; } -EXPORT_SYMBOL(ad7879_resume); +#endif + +SIMPLE_DEV_PM_OPS(ad7879_pm_ops, ad7879_suspend, ad7879_resume); +EXPORT_SYMBOL(ad7879_pm_ops); static void ad7879_toggle(struct ad7879 *ts, bool disable) { @@ -340,10 +351,10 @@ static ssize_t ad7879_disable_store(struct device *dev, const char *buf, size_t count) { struct ad7879 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; diff --git a/drivers/input/touchscreen/ad7879.h b/drivers/input/touchscreen/ad7879.h index 6b45a27236c..6fd13c48d37 100644 --- a/drivers/input/touchscreen/ad7879.h +++ b/drivers/input/touchscreen/ad7879.h @@ -21,8 +21,8 @@ struct ad7879_bus_ops { int (*write)(struct device *dev, u8 reg, u16 val); }; -void ad7879_suspend(struct ad7879 *); -void ad7879_resume(struct ad7879 *); +extern const struct dev_pm_ops ad7879_pm_ops; + struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq, const struct ad7879_bus_ops *bops); void ad7879_remove(struct ad7879 *); diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index de31ec6fe9e..4cedae6a36e 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -602,10 +602,12 @@ static ssize_t ads7846_disable_store(struct device *dev, const char *buf, size_t count) { struct ads7846 *ts = dev_get_drvdata(dev); - unsigned long i; + unsigned int i; + int err; - if (strict_strtoul(buf, 10, &i)) - return -EINVAL; + err = kstrtouint(buf, 10, &i); + if (err) + return err; if (i) ads7846_disable(ts); diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c new file mode 100644 index 00000000000..eadcc2e83c7 --- /dev/null +++ b/drivers/input/touchscreen/egalax_ts.c @@ -0,0 +1,303 @@ +/* + * Driver for EETI eGalax Multiple Touch Controller + * + * Copyright (C) 2011 Freescale Semiconductor, Inc. + * + * based on max11801_ts.c + * + * 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. + */ + +/* EETI eGalax serial touch screen controller is a I2C based multiple + * touch screen controller, it supports 5 point multiple touch. */ + +/* TODO: + - auto idle mode support +*/ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/irq.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/bitops.h> +#include <linux/input/mt.h> + +/* + * Mouse Mode: some panel may configure the controller to mouse mode, + * which can only report one point at a given time. + * This driver will ignore events in this mode. + */ +#define REPORT_MODE_MOUSE 0x1 +/* + * Vendor Mode: this mode is used to transfer some vendor specific + * messages. + * This driver will ignore events in this mode. + */ +#define REPORT_MODE_VENDOR 0x3 +/* Multiple Touch Mode */ +#define REPORT_MODE_MTTOUCH 0x4 + +#define MAX_SUPPORT_POINTS 5 + +#define EVENT_VALID_OFFSET 7 +#define EVENT_VALID_MASK (0x1 << EVENT_VALID_OFFSET) +#define EVENT_ID_OFFSET 2 +#define EVENT_ID_MASK (0xf << EVENT_ID_OFFSET) +#define EVENT_IN_RANGE (0x1 << 1) +#define EVENT_DOWN_UP (0X1 << 0) + +#define MAX_I2C_DATA_LEN 10 + +#define EGALAX_MAX_X 32760 +#define EGALAX_MAX_Y 32760 +#define EGALAX_MAX_TRIES 100 + +struct egalax_ts { + struct i2c_client *client; + struct input_dev *input_dev; +}; + +static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id) +{ + struct egalax_ts *ts = dev_id; + struct input_dev *input_dev = ts->input_dev; + struct i2c_client *client = ts->client; + u8 buf[MAX_I2C_DATA_LEN]; + int id, ret, x, y, z; + int tries = 0; + bool down, valid; + u8 state; + + do { + ret = i2c_master_recv(client, buf, MAX_I2C_DATA_LEN); + } while (ret == -EAGAIN && tries++ < EGALAX_MAX_TRIES); + + if (ret < 0) + return IRQ_HANDLED; + + if (buf[0] != REPORT_MODE_MTTOUCH) { + /* ignore mouse events and vendor events */ + return IRQ_HANDLED; + } + + state = buf[1]; + x = (buf[3] << 8) | buf[2]; + y = (buf[5] << 8) | buf[4]; + z = (buf[7] << 8) | buf[6]; + + valid = state & EVENT_VALID_MASK; + id = (state & EVENT_ID_MASK) >> EVENT_ID_OFFSET; + down = state & EVENT_DOWN_UP; + + if (!valid || id > MAX_SUPPORT_POINTS) { + dev_dbg(&client->dev, "point invalid\n"); + return IRQ_HANDLED; + } + + input_mt_slot(input_dev, id); + input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down); + + dev_dbg(&client->dev, "%s id:%d x:%d y:%d z:%d", + down ? "down" : "up", id, x, y, z); + + if (down) { + input_report_abs(input_dev, ABS_MT_POSITION_X, x); + input_report_abs(input_dev, ABS_MT_POSITION_Y, y); + input_report_abs(input_dev, ABS_MT_PRESSURE, z); + } + + input_mt_report_pointer_emulation(input_dev, true); + input_sync(input_dev); + + return IRQ_HANDLED; +} + +/* wake up controller by an falling edge of interrupt gpio. */ +static int egalax_wake_up_device(struct i2c_client *client) +{ + int gpio = irq_to_gpio(client->irq); + int ret; + + ret = gpio_request(gpio, "egalax_irq"); + if (ret < 0) { + dev_err(&client->dev, + "request gpio failed, cannot wake up controller: %d\n", + ret); + return ret; + } + + /* wake up controller via an falling edge on IRQ gpio. */ + gpio_direction_output(gpio, 0); + gpio_set_value(gpio, 1); + + /* controller should be waken up, return irq. */ + gpio_direction_input(gpio); + gpio_free(gpio); + + return 0; +} + +static int __devinit egalax_firmware_version(struct i2c_client *client) +{ + static const u8 cmd[MAX_I2C_DATA_LEN] = { 0x03, 0x03, 0xa, 0x01, 0x41 }; + int ret; + + ret = i2c_master_send(client, cmd, MAX_I2C_DATA_LEN); + if (ret < 0) + return ret; + + return 0; +} + +static int __devinit egalax_ts_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct egalax_ts *ts; + struct input_dev *input_dev; + int ret; + int error; + + ts = kzalloc(sizeof(struct egalax_ts), GFP_KERNEL); + if (!ts) { + dev_err(&client->dev, "Failed to allocate memory\n"); + return -ENOMEM; + } + + input_dev = input_allocate_device(); + if (!input_dev) { + dev_err(&client->dev, "Failed to allocate memory\n"); + error = -ENOMEM; + goto err_free_ts; + } + + ts->client = client; + ts->input_dev = input_dev; + + /* controller may be in sleep, wake it up. */ + egalax_wake_up_device(client); + + ret = egalax_firmware_version(client); + if (ret < 0) { + dev_err(&client->dev, "Failed to read firmware version\n"); + error = -EIO; + goto err_free_dev; + } + + input_dev->name = "EETI eGalax Touch Screen"; + input_dev->id.bustype = BUS_I2C; + input_dev->dev.parent = &client->dev; + + __set_bit(EV_ABS, input_dev->evbit); + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(BTN_TOUCH, input_dev->keybit); + + input_set_abs_params(input_dev, ABS_X, 0, EGALAX_MAX_X, 0, 0); + input_set_abs_params(input_dev, ABS_Y, 0, EGALAX_MAX_Y, 0, 0); + input_set_abs_params(input_dev, + ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0); + input_set_abs_params(input_dev, + ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0); + input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS); + + input_set_drvdata(input_dev, ts); + + error = request_threaded_irq(client->irq, NULL, egalax_ts_interrupt, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "egalax_ts", ts); + if (error < 0) { + dev_err(&client->dev, "Failed to register interrupt\n"); + goto err_free_dev; + } + + error = input_register_device(ts->input_dev); + if (error) + goto err_free_irq; + + i2c_set_clientdata(client, ts); + return 0; + +err_free_irq: + free_irq(client->irq, ts); +err_free_dev: + input_free_device(input_dev); +err_free_ts: + kfree(ts); + + return error; +} + +static __devexit int egalax_ts_remove(struct i2c_client *client) +{ + struct egalax_ts *ts = i2c_get_clientdata(client); + + free_irq(client->irq, ts); + + input_unregister_device(ts->input_dev); + kfree(ts); + + return 0; +} + +static const struct i2c_device_id egalax_ts_id[] = { + { "egalax_ts", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, egalax_ts_id); + +#ifdef CONFIG_PM_SLEEP +static int egalax_ts_suspend(struct device *dev) +{ + static const u8 suspend_cmd[MAX_I2C_DATA_LEN] = { + 0x3, 0x6, 0xa, 0x3, 0x36, 0x3f, 0x2, 0, 0, 0 + }; + struct i2c_client *client = to_i2c_client(dev); + int ret; + + ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN); + return ret > 0 ? 0 : ret; +} + +static int egalax_ts_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + return egalax_wake_up_device(client); +} +#endif + +static SIMPLE_DEV_PM_OPS(egalax_ts_pm_ops, egalax_ts_suspend, egalax_ts_resume); + +static struct i2c_driver egalax_ts_driver = { + .driver = { + .name = "egalax_ts", + .owner = THIS_MODULE, + .pm = &egalax_ts_pm_ops, + }, + .id_table = egalax_ts_id, + .probe = egalax_ts_probe, + .remove = __devexit_p(egalax_ts_remove), +}; + +static int __init egalax_ts_init(void) +{ + return i2c_add_driver(&egalax_ts_driver); +} + +static void __exit egalax_ts_exit(void) +{ + i2c_del_driver(&egalax_ts_driver); +} + +module_init(egalax_ts_init); +module_exit(egalax_ts_exit); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("Touchscreen driver for EETI eGalax touch controller"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c index 73fd6642b68..9dbd8b4d9a6 100644 --- a/drivers/input/touchscreen/usbtouchscreen.c +++ b/drivers/input/touchscreen/usbtouchscreen.c @@ -16,6 +16,7 @@ * - JASTEC USB touch controller/DigiTech DTR-02U * - Zytronic capacitive touchscreen * - NEXIO/iNexio + * - Elo TouchSystems 2700 IntelliTouch * * Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch> * Copyright (C) by Todd E. Johnson (mtouchusb.c) @@ -138,6 +139,7 @@ enum { DEVTYPE_ZYTRONIC, DEVTYPE_TC45USB, DEVTYPE_NEXIO, + DEVTYPE_ELO, }; #define USB_DEVICE_HID_CLASS(vend, prod) \ @@ -239,6 +241,10 @@ static const struct usb_device_id usbtouch_devices[] = { .driver_info = DEVTYPE_NEXIO}, #endif +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + {USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO}, +#endif + {} }; @@ -945,6 +951,24 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt) /***************************************************************************** + * ELO part + */ + +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + +static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt) +{ + dev->x = (pkt[3] << 8) | pkt[2]; + dev->y = (pkt[5] << 8) | pkt[4]; + dev->touch = pkt[6] > 0; + dev->press = pkt[6]; + + return 1; +} +#endif + + +/***************************************************************************** * the different device descriptors */ #ifdef MULTI_PACKET @@ -953,6 +977,18 @@ static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, #endif static struct usbtouch_device_info usbtouch_dev_info[] = { +#ifdef CONFIG_TOUCHSCREEN_USB_ELO + [DEVTYPE_ELO] = { + .min_xc = 0x0, + .max_xc = 0x0fff, + .min_yc = 0x0, + .max_yc = 0x0fff, + .max_press = 0xff, + .rept_size = 8, + .read_data = elo_read_data, + }, +#endif + #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX [DEVTYPE_EGALAX] = { .min_xc = 0x0, |