Merge branch 'next' into for-linus
Prepare second set of changes for 3.6 merge window.
This commit is contained in:
Dmitry Torokhov
commit
cf45b5a252
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|
@ -0,0 +1,54 @@
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|||
EDT ft5x06 based Polytouch devices
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||||
----------------------------------
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||||
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The edt-ft5x06 driver is useful for the EDT "Polytouch" family of capacitive
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touch screens. Note that it is *not* suitable for other devices based on the
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focaltec ft5x06 devices, since they contain vendor-specific firmware. In
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particular this driver is not suitable for the Nook tablet.
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It has been tested with the following devices:
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* EP0350M06
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* EP0430M06
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* EP0570M06
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* EP0700M06
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The driver allows configuration of the touch screen via a set of sysfs files:
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/sys/class/input/eventX/device/device/threshold:
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allows setting the "click"-threshold in the range from 20 to 80.
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/sys/class/input/eventX/device/device/gain:
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allows setting the sensitivity in the range from 0 to 31. Note that
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lower values indicate higher sensitivity.
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/sys/class/input/eventX/device/device/offset:
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allows setting the edge compensation in the range from 0 to 31.
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/sys/class/input/eventX/device/device/report_rate:
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allows setting the report rate in the range from 3 to 14.
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For debugging purposes the driver provides a few files in the debug
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filesystem (if available in the kernel). In /sys/kernel/debug/edt_ft5x06
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you'll find the following files:
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num_x, num_y:
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(readonly) contains the number of sensor fields in X- and
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Y-direction.
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mode:
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allows switching the sensor between "factory mode" and "operation
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mode" by writing "1" or "0" to it. In factory mode (1) it is
|
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possible to get the raw data from the sensor. Note that in factory
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mode regular events don't get delivered and the options described
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above are unavailable.
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raw_data:
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contains num_x * num_y big endian 16 bit values describing the raw
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values for each sensor field. Note that each read() call on this
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files triggers a new readout. It is recommended to provide a buffer
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big enough to contain num_x * num_y * 2 bytes.
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Note that reading raw_data gives a I/O error when the device is not in factory
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mode. The same happens when reading/writing to the parameter files when the
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device is not in regular operation mode.
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@ -40,11 +40,27 @@
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* Note that newer firmware allows querying device for maximum useable
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* coordinates.
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*/
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#define XMIN 0
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#define XMAX 6143
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#define YMIN 0
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#define YMAX 6143
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#define XMIN_NOMINAL 1472
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#define XMAX_NOMINAL 5472
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#define YMIN_NOMINAL 1408
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#define YMAX_NOMINAL 4448
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/* Size in bits of absolute position values reported by the hardware */
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#define ABS_POS_BITS 13
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/*
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* Any position values from the hardware above the following limits are
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* treated as "wrapped around negative" values that have been truncated to
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* the 13-bit reporting range of the hardware. These are just reasonable
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* guesses and can be adjusted if hardware is found that operates outside
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* of these parameters.
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*/
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#define X_MAX_POSITIVE (((1 << ABS_POS_BITS) + XMAX) / 2)
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#define Y_MAX_POSITIVE (((1 << ABS_POS_BITS) + YMAX) / 2)
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/*****************************************************************************
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* Stuff we need even when we do not want native Synaptics support
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|
@ -588,6 +604,12 @@ static int synaptics_parse_hw_state(const unsigned char buf[],
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hw->right = (buf[0] & 0x02) ? 1 : 0;
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}
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/* Convert wrap-around values to negative */
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if (hw->x > X_MAX_POSITIVE)
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hw->x -= 1 << ABS_POS_BITS;
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if (hw->y > Y_MAX_POSITIVE)
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hw->y -= 1 << ABS_POS_BITS;
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return 0;
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}
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|
|
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|
|
@ -464,7 +464,7 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
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t = (data[6] << 2) | ((data[7] >> 6) & 3);
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if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
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(features->type >= INTUOS5S && features->type <= INTUOS5L) ||
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features->type == WACOM_21UX2 || features->type == WACOM_24HD) {
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(features->type >= WACOM_21UX2 && features->type <= WACOM_24HD)) {
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t = (t << 1) | (data[1] & 1);
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}
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input_report_abs(input, ABS_PRESSURE, t);
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|
|
@ -614,7 +614,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
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input_report_abs(input, ABS_MISC, 0);
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}
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} else {
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if (features->type == WACOM_21UX2) {
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if (features->type == WACOM_21UX2 || features->type == WACOM_22HD) {
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input_report_key(input, BTN_0, (data[5] & 0x01));
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input_report_key(input, BTN_1, (data[6] & 0x01));
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input_report_key(input, BTN_2, (data[6] & 0x02));
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|
|
@ -633,6 +633,12 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
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input_report_key(input, BTN_Z, (data[8] & 0x20));
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input_report_key(input, BTN_BASE, (data[8] & 0x40));
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input_report_key(input, BTN_BASE2, (data[8] & 0x80));
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|
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if (features->type == WACOM_22HD) {
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input_report_key(input, KEY_PROG1, data[9] & 0x01);
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input_report_key(input, KEY_PROG2, data[9] & 0x02);
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input_report_key(input, KEY_PROG3, data[9] & 0x04);
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}
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} else {
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input_report_key(input, BTN_0, (data[5] & 0x01));
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input_report_key(input, BTN_1, (data[5] & 0x02));
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@ -1231,6 +1237,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
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case CINTIQ:
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case WACOM_BEE:
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case WACOM_21UX2:
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case WACOM_22HD:
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case WACOM_24HD:
|
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sync = wacom_intuos_irq(wacom_wac);
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break;
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||||
|
|
@ -1432,6 +1439,12 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
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|||
wacom_setup_cintiq(wacom_wac);
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||||
break;
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||||
|
||||
case WACOM_22HD:
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__set_bit(KEY_PROG1, input_dev->keybit);
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__set_bit(KEY_PROG2, input_dev->keybit);
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__set_bit(KEY_PROG3, input_dev->keybit);
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/* fall through */
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||||
|
||||
case WACOM_21UX2:
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__set_bit(BTN_A, input_dev->keybit);
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||||
__set_bit(BTN_B, input_dev->keybit);
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||||
|
|
@ -1858,6 +1871,9 @@ static const struct wacom_features wacom_features_0xF0 =
|
|||
static const struct wacom_features wacom_features_0xCC =
|
||||
{ "Wacom Cintiq 21UX2", WACOM_PKGLEN_INTUOS, 87200, 65600, 2047,
|
||||
63, WACOM_21UX2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
|
||||
static const struct wacom_features wacom_features_0xFA =
|
||||
{ "Wacom Cintiq 22HD", WACOM_PKGLEN_INTUOS, 95840, 54260, 2047,
|
||||
63, WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
|
||||
static const struct wacom_features wacom_features_0x90 =
|
||||
{ "Wacom ISDv4 90", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
|
||||
0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
|
||||
|
|
@ -2075,6 +2091,7 @@ const struct usb_device_id wacom_ids[] = {
|
|||
{ USB_DEVICE_WACOM(0xEF) },
|
||||
{ USB_DEVICE_WACOM(0x47) },
|
||||
{ USB_DEVICE_WACOM(0xF4) },
|
||||
{ USB_DEVICE_WACOM(0xFA) },
|
||||
{ USB_DEVICE_LENOVO(0x6004) },
|
||||
{ }
|
||||
};
|
||||
|
|
|
|||
|
|
@ -73,8 +73,9 @@ enum {
|
|||
INTUOS5S,
|
||||
INTUOS5,
|
||||
INTUOS5L,
|
||||
WACOM_24HD,
|
||||
WACOM_21UX2,
|
||||
WACOM_22HD,
|
||||
WACOM_24HD,
|
||||
CINTIQ,
|
||||
WACOM_BEE,
|
||||
WACOM_MO,
|
||||
|
|
|
|||
|
|
@ -472,6 +472,19 @@ config TOUCHSCREEN_PENMOUNT
|
|||
To compile this driver as a module, choose M here: the
|
||||
module will be called penmount.
|
||||
|
||||
config TOUCHSCREEN_EDT_FT5X06
|
||||
tristate "EDT FocalTech FT5x06 I2C Touchscreen support"
|
||||
depends on I2C
|
||||
help
|
||||
Say Y here if you have an EDT "Polytouch" touchscreen based
|
||||
on the FocalTech FT5x06 family of controllers connected to
|
||||
your system.
|
||||
|
||||
If unsure, say N.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called edt-ft5x06.
|
||||
|
||||
config TOUCHSCREEN_MIGOR
|
||||
tristate "Renesas MIGO-R touchscreen"
|
||||
depends on SH_MIGOR && I2C
|
||||
|
|
|
|||
|
|
@ -24,6 +24,7 @@ obj-$(CONFIG_TOUCHSCREEN_CYTTSP_SPI) += cyttsp_spi.o
|
|||
obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_DA9052) += da9052_tsi.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_EDT_FT5X06) += edt-ft5x06.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
|
||||
obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,898 @@
|
|||
/*
|
||||
* Copyright (C) 2012 Simon Budig, <simon.budig@kernelconcepts.de>
|
||||
*
|
||||
* This software is licensed under the terms of the GNU General Public
|
||||
* License version 2, as published by the Free Software Foundation, and
|
||||
* may be copied, distributed, and modified under those terms.
|
||||
*
|
||||
* 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 library; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* This is a driver for the EDT "Polytouch" family of touch controllers
|
||||
* based on the FocalTech FT5x06 line of chips.
|
||||
*
|
||||
* Development of this driver has been sponsored by Glyn:
|
||||
* http://www.glyn.com/Products/Displays
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/ratelimit.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/input.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/uaccess.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/debugfs.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/input/mt.h>
|
||||
#include <linux/input/edt-ft5x06.h>
|
||||
|
||||
#define MAX_SUPPORT_POINTS 5
|
||||
|
||||
#define WORK_REGISTER_THRESHOLD 0x00
|
||||
#define WORK_REGISTER_REPORT_RATE 0x08
|
||||
#define WORK_REGISTER_GAIN 0x30
|
||||
#define WORK_REGISTER_OFFSET 0x31
|
||||
#define WORK_REGISTER_NUM_X 0x33
|
||||
#define WORK_REGISTER_NUM_Y 0x34
|
||||
|
||||
#define WORK_REGISTER_OPMODE 0x3c
|
||||
#define FACTORY_REGISTER_OPMODE 0x01
|
||||
|
||||
#define TOUCH_EVENT_DOWN 0x00
|
||||
#define TOUCH_EVENT_UP 0x01
|
||||
#define TOUCH_EVENT_ON 0x02
|
||||
#define TOUCH_EVENT_RESERVED 0x03
|
||||
|
||||
#define EDT_NAME_LEN 23
|
||||
#define EDT_SWITCH_MODE_RETRIES 10
|
||||
#define EDT_SWITCH_MODE_DELAY 5 /* msec */
|
||||
#define EDT_RAW_DATA_RETRIES 100
|
||||
#define EDT_RAW_DATA_DELAY 1 /* msec */
|
||||
|
||||
struct edt_ft5x06_ts_data {
|
||||
struct i2c_client *client;
|
||||
struct input_dev *input;
|
||||
u16 num_x;
|
||||
u16 num_y;
|
||||
|
||||
#if defined(CONFIG_DEBUG_FS)
|
||||
struct dentry *debug_dir;
|
||||
u8 *raw_buffer;
|
||||
size_t raw_bufsize;
|
||||
#endif
|
||||
|
||||
struct mutex mutex;
|
||||
bool factory_mode;
|
||||
int threshold;
|
||||
int gain;
|
||||
int offset;
|
||||
int report_rate;
|
||||
|
||||
char name[EDT_NAME_LEN];
|
||||
};
|
||||
|
||||
static int edt_ft5x06_ts_readwrite(struct i2c_client *client,
|
||||
u16 wr_len, u8 *wr_buf,
|
||||
u16 rd_len, u8 *rd_buf)
|
||||
{
|
||||
struct i2c_msg wrmsg[2];
|
||||
int i = 0;
|
||||
int ret;
|
||||
|
||||
if (wr_len) {
|
||||
wrmsg[i].addr = client->addr;
|
||||
wrmsg[i].flags = 0;
|
||||
wrmsg[i].len = wr_len;
|
||||
wrmsg[i].buf = wr_buf;
|
||||
i++;
|
||||
}
|
||||
if (rd_len) {
|
||||
wrmsg[i].addr = client->addr;
|
||||
wrmsg[i].flags = I2C_M_RD;
|
||||
wrmsg[i].len = rd_len;
|
||||
wrmsg[i].buf = rd_buf;
|
||||
i++;
|
||||
}
|
||||
|
||||
ret = i2c_transfer(client->adapter, wrmsg, i);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
if (ret != i)
|
||||
return -EIO;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static bool edt_ft5x06_ts_check_crc(struct edt_ft5x06_ts_data *tsdata,
|
||||
u8 *buf, int buflen)
|
||||
{
|
||||
int i;
|
||||
u8 crc = 0;
|
||||
|
||||
for (i = 0; i < buflen - 1; i++)
|
||||
crc ^= buf[i];
|
||||
|
||||
if (crc != buf[buflen-1]) {
|
||||
dev_err_ratelimited(&tsdata->client->dev,
|
||||
"crc error: 0x%02x expected, got 0x%02x\n",
|
||||
crc, buf[buflen-1]);
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
|
||||
{
|
||||
struct edt_ft5x06_ts_data *tsdata = dev_id;
|
||||
struct device *dev = &tsdata->client->dev;
|
||||
u8 cmd = 0xf9;
|
||||
u8 rdbuf[26];
|
||||
int i, type, x, y, id;
|
||||
int error;
|
||||
|
||||
memset(rdbuf, 0, sizeof(rdbuf));
|
||||
|
||||
error = edt_ft5x06_ts_readwrite(tsdata->client,
|
||||
sizeof(cmd), &cmd,
|
||||
sizeof(rdbuf), rdbuf);
|
||||
if (error) {
|
||||
dev_err_ratelimited(dev, "Unable to fetch data, error: %d\n",
|
||||
error);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (rdbuf[0] != 0xaa || rdbuf[1] != 0xaa || rdbuf[2] != 26) {
|
||||
dev_err_ratelimited(dev, "Unexpected header: %02x%02x%02x!\n",
|
||||
rdbuf[0], rdbuf[1], rdbuf[2]);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (!edt_ft5x06_ts_check_crc(tsdata, rdbuf, 26))
|
||||
goto out;
|
||||
|
||||
for (i = 0; i < MAX_SUPPORT_POINTS; i++) {
|
||||
u8 *buf = &rdbuf[i * 4 + 5];
|
||||
bool down;
|
||||
|
||||
type = buf[0] >> 6;
|
||||
/* ignore Reserved events */
|
||||
if (type == TOUCH_EVENT_RESERVED)
|
||||
continue;
|
||||
|
||||
x = ((buf[0] << 8) | buf[1]) & 0x0fff;
|
||||
y = ((buf[2] << 8) | buf[3]) & 0x0fff;
|
||||
id = (buf[2] >> 4) & 0x0f;
|
||||
down = (type != TOUCH_EVENT_UP);
|
||||
|
||||
input_mt_slot(tsdata->input, id);
|
||||
input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, down);
|
||||
|
||||
if (!down)
|
||||
continue;
|
||||
|
||||
input_report_abs(tsdata->input, ABS_MT_POSITION_X, x);
|
||||
input_report_abs(tsdata->input, ABS_MT_POSITION_Y, y);
|
||||
}
|
||||
|
||||
input_mt_report_pointer_emulation(tsdata->input, true);
|
||||
input_sync(tsdata->input);
|
||||
|
||||
out:
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int edt_ft5x06_register_write(struct edt_ft5x06_ts_data *tsdata,
|
||||
u8 addr, u8 value)
|
||||
{
|
||||
u8 wrbuf[4];
|
||||
|
||||
wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
|
||||
wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
|
||||
wrbuf[2] = value;
|
||||
wrbuf[3] = wrbuf[0] ^ wrbuf[1] ^ wrbuf[2];
|
||||
|
||||
return edt_ft5x06_ts_readwrite(tsdata->client, 4, wrbuf, 0, NULL);
|
||||
}
|
||||
|
||||
static int edt_ft5x06_register_read(struct edt_ft5x06_ts_data *tsdata,
|
||||
u8 addr)
|
||||
{
|
||||
u8 wrbuf[2], rdbuf[2];
|
||||
int error;
|
||||
|
||||
wrbuf[0] = tsdata->factory_mode ? 0xf3 : 0xfc;
|
||||
wrbuf[1] = tsdata->factory_mode ? addr & 0x7f : addr & 0x3f;
|
||||
wrbuf[1] |= tsdata->factory_mode ? 0x80 : 0x40;
|
||||
|
||||
error = edt_ft5x06_ts_readwrite(tsdata->client, 2, wrbuf, 2, rdbuf);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if ((wrbuf[0] ^ wrbuf[1] ^ rdbuf[0]) != rdbuf[1]) {
|
||||
dev_err(&tsdata->client->dev,
|
||||
"crc error: 0x%02x expected, got 0x%02x\n",
|
||||
wrbuf[0] ^ wrbuf[1] ^ rdbuf[0], rdbuf[1]);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return rdbuf[0];
|
||||
}
|
||||
|
||||
struct edt_ft5x06_attribute {
|
||||
struct device_attribute dattr;
|
||||
size_t field_offset;
|
||||
u8 limit_low;
|
||||
u8 limit_high;
|
||||
u8 addr;
|
||||
};
|
||||
|
||||
#define EDT_ATTR(_field, _mode, _addr, _limit_low, _limit_high) \
|
||||
struct edt_ft5x06_attribute edt_ft5x06_attr_##_field = { \
|
||||
.dattr = __ATTR(_field, _mode, \
|
||||
edt_ft5x06_setting_show, \
|
||||
edt_ft5x06_setting_store), \
|
||||
.field_offset = \
|
||||
offsetof(struct edt_ft5x06_ts_data, _field), \
|
||||
.limit_low = _limit_low, \
|
||||
.limit_high = _limit_high, \
|
||||
.addr = _addr, \
|
||||
}
|
||||
|
||||
static ssize_t edt_ft5x06_setting_show(struct device *dev,
|
||||
struct device_attribute *dattr,
|
||||
char *buf)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
|
||||
struct edt_ft5x06_attribute *attr =
|
||||
container_of(dattr, struct edt_ft5x06_attribute, dattr);
|
||||
u8 *field = (u8 *)((char *)tsdata + attr->field_offset);
|
||||
int val;
|
||||
size_t count = 0;
|
||||
int error = 0;
|
||||
|
||||
mutex_lock(&tsdata->mutex);
|
||||
|
||||
if (tsdata->factory_mode) {
|
||||
error = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
val = edt_ft5x06_register_read(tsdata, attr->addr);
|
||||
if (val < 0) {
|
||||
error = val;
|
||||
dev_err(&tsdata->client->dev,
|
||||
"Failed to fetch attribute %s, error %d\n",
|
||||
dattr->attr.name, error);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (val != *field) {
|
||||
dev_warn(&tsdata->client->dev,
|
||||
"%s: read (%d) and stored value (%d) differ\n",
|
||||
dattr->attr.name, val, *field);
|
||||
*field = val;
|
||||
}
|
||||
|
||||
count = scnprintf(buf, PAGE_SIZE, "%d\n", val);
|
||||
out:
|
||||
mutex_unlock(&tsdata->mutex);
|
||||
return error ?: count;
|
||||
}
|
||||
|
||||
static ssize_t edt_ft5x06_setting_store(struct device *dev,
|
||||
struct device_attribute *dattr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
|
||||
struct edt_ft5x06_attribute *attr =
|
||||
container_of(dattr, struct edt_ft5x06_attribute, dattr);
|
||||
u8 *field = (u8 *)((char *)tsdata + attr->field_offset);
|
||||
unsigned int val;
|
||||
int error;
|
||||
|
||||
mutex_lock(&tsdata->mutex);
|
||||
|
||||
if (tsdata->factory_mode) {
|
||||
error = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
error = kstrtouint(buf, 0, &val);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
if (val < attr->limit_low || val > attr->limit_high) {
|
||||
error = -ERANGE;
|
||||
goto out;
|
||||
}
|
||||
|
||||
error = edt_ft5x06_register_write(tsdata, attr->addr, val);
|
||||
if (error) {
|
||||
dev_err(&tsdata->client->dev,
|
||||
"Failed to update attribute %s, error: %d\n",
|
||||
dattr->attr.name, error);
|
||||
goto out;
|
||||
}
|
||||
|
||||
*field = val;
|
||||
|
||||
out:
|
||||
mutex_unlock(&tsdata->mutex);
|
||||
return error ?: count;
|
||||
}
|
||||
|
||||
static EDT_ATTR(gain, S_IWUSR | S_IRUGO, WORK_REGISTER_GAIN, 0, 31);
|
||||
static EDT_ATTR(offset, S_IWUSR | S_IRUGO, WORK_REGISTER_OFFSET, 0, 31);
|
||||
static EDT_ATTR(threshold, S_IWUSR | S_IRUGO,
|
||||
WORK_REGISTER_THRESHOLD, 20, 80);
|
||||
static EDT_ATTR(report_rate, S_IWUSR | S_IRUGO,
|
||||
WORK_REGISTER_REPORT_RATE, 3, 14);
|
||||
|
||||
static struct attribute *edt_ft5x06_attrs[] = {
|
||||
&edt_ft5x06_attr_gain.dattr.attr,
|
||||
&edt_ft5x06_attr_offset.dattr.attr,
|
||||
&edt_ft5x06_attr_threshold.dattr.attr,
|
||||
&edt_ft5x06_attr_report_rate.dattr.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group edt_ft5x06_attr_group = {
|
||||
.attrs = edt_ft5x06_attrs,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
static int edt_ft5x06_factory_mode(struct edt_ft5x06_ts_data *tsdata)
|
||||
{
|
||||
struct i2c_client *client = tsdata->client;
|
||||
int retries = EDT_SWITCH_MODE_RETRIES;
|
||||
int ret;
|
||||
int error;
|
||||
|
||||
disable_irq(client->irq);
|
||||
|
||||
if (!tsdata->raw_buffer) {
|
||||
tsdata->raw_bufsize = tsdata->num_x * tsdata->num_y *
|
||||
sizeof(u16);
|
||||
tsdata->raw_buffer = kzalloc(tsdata->raw_bufsize, GFP_KERNEL);
|
||||
if (!tsdata->raw_buffer) {
|
||||
error = -ENOMEM;
|
||||
goto err_out;
|
||||
}
|
||||
}
|
||||
|
||||
/* mode register is 0x3c when in the work mode */
|
||||
error = edt_ft5x06_register_write(tsdata, WORK_REGISTER_OPMODE, 0x03);
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"failed to switch to factory mode, error %d\n", error);
|
||||
goto err_out;
|
||||
}
|
||||
|
||||
tsdata->factory_mode = true;
|
||||
do {
|
||||
mdelay(EDT_SWITCH_MODE_DELAY);
|
||||
/* mode register is 0x01 when in factory mode */
|
||||
ret = edt_ft5x06_register_read(tsdata, FACTORY_REGISTER_OPMODE);
|
||||
if (ret == 0x03)
|
||||
break;
|
||||
} while (--retries > 0);
|
||||
|
||||
if (retries == 0) {
|
||||
dev_err(&client->dev, "not in factory mode after %dms.\n",
|
||||
EDT_SWITCH_MODE_RETRIES * EDT_SWITCH_MODE_DELAY);
|
||||
error = -EIO;
|
||||
goto err_out;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_out:
|
||||
kfree(tsdata->raw_buffer);
|
||||
tsdata->raw_buffer = NULL;
|
||||
tsdata->factory_mode = false;
|
||||
enable_irq(client->irq);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
|
||||
{
|
||||
struct i2c_client *client = tsdata->client;
|
||||
int retries = EDT_SWITCH_MODE_RETRIES;
|
||||
int ret;
|
||||
int error;
|
||||
|
||||
/* mode register is 0x01 when in the factory mode */
|
||||
error = edt_ft5x06_register_write(tsdata, FACTORY_REGISTER_OPMODE, 0x1);
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"failed to switch to work mode, error: %d\n", error);
|
||||
return error;
|
||||
}
|
||||
|
||||
tsdata->factory_mode = false;
|
||||
|
||||
do {
|
||||
mdelay(EDT_SWITCH_MODE_DELAY);
|
||||
/* mode register is 0x01 when in factory mode */
|
||||
ret = edt_ft5x06_register_read(tsdata, WORK_REGISTER_OPMODE);
|
||||
if (ret == 0x01)
|
||||
break;
|
||||
} while (--retries > 0);
|
||||
|
||||
if (retries == 0) {
|
||||
dev_err(&client->dev, "not in work mode after %dms.\n",
|
||||
EDT_SWITCH_MODE_RETRIES * EDT_SWITCH_MODE_DELAY);
|
||||
tsdata->factory_mode = true;
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
if (tsdata->raw_buffer)
|
||||
kfree(tsdata->raw_buffer);
|
||||
tsdata->raw_buffer = NULL;
|
||||
|
||||
/* restore parameters */
|
||||
edt_ft5x06_register_write(tsdata, WORK_REGISTER_THRESHOLD,
|
||||
tsdata->threshold);
|
||||
edt_ft5x06_register_write(tsdata, WORK_REGISTER_GAIN,
|
||||
tsdata->gain);
|
||||
edt_ft5x06_register_write(tsdata, WORK_REGISTER_OFFSET,
|
||||
tsdata->offset);
|
||||
edt_ft5x06_register_write(tsdata, WORK_REGISTER_REPORT_RATE,
|
||||
tsdata->report_rate);
|
||||
|
||||
enable_irq(client->irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int edt_ft5x06_debugfs_mode_get(void *data, u64 *mode)
|
||||
{
|
||||
struct edt_ft5x06_ts_data *tsdata = data;
|
||||
|
||||
*mode = tsdata->factory_mode;
|
||||
|
||||
return 0;
|
||||
};
|
||||
|
||||
static int edt_ft5x06_debugfs_mode_set(void *data, u64 mode)
|
||||
{
|
||||
struct edt_ft5x06_ts_data *tsdata = data;
|
||||
int retval = 0;
|
||||
|
||||
if (mode > 1)
|
||||
return -ERANGE;
|
||||
|
||||
mutex_lock(&tsdata->mutex);
|
||||
|
||||
if (mode != tsdata->factory_mode) {
|
||||
retval = mode ? edt_ft5x06_factory_mode(tsdata) :
|
||||
edt_ft5x06_work_mode(tsdata);
|
||||
}
|
||||
|
||||
mutex_unlock(&tsdata->mutex);
|
||||
|
||||
return retval;
|
||||
};
|
||||
|
||||
DEFINE_SIMPLE_ATTRIBUTE(debugfs_mode_fops, edt_ft5x06_debugfs_mode_get,
|
||||
edt_ft5x06_debugfs_mode_set, "%llu\n");
|
||||
|
||||
static int edt_ft5x06_debugfs_raw_data_open(struct inode *inode,
|
||||
struct file *file)
|
||||
{
|
||||
file->private_data = inode->i_private;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static ssize_t edt_ft5x06_debugfs_raw_data_read(struct file *file,
|
||||
char __user *buf, size_t count, loff_t *off)
|
||||
{
|
||||
struct edt_ft5x06_ts_data *tsdata = file->private_data;
|
||||
struct i2c_client *client = tsdata->client;
|
||||
int retries = EDT_RAW_DATA_RETRIES;
|
||||
int val, i, error;
|
||||
size_t read = 0;
|
||||
int colbytes;
|
||||
char wrbuf[3];
|
||||
u8 *rdbuf;
|
||||
|
||||
if (*off < 0 || *off >= tsdata->raw_bufsize)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&tsdata->mutex);
|
||||
|
||||
if (!tsdata->factory_mode || !tsdata->raw_buffer) {
|
||||
error = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
error = edt_ft5x06_register_write(tsdata, 0x08, 0x01);
|
||||
if (error) {
|
||||
dev_dbg(&client->dev,
|
||||
"failed to write 0x08 register, error %d\n", error);
|
||||
goto out;
|
||||
}
|
||||
|
||||
do {
|
||||
msleep(EDT_RAW_DATA_DELAY);
|
||||
val = edt_ft5x06_register_read(tsdata, 0x08);
|
||||
if (val < 1)
|
||||
break;
|
||||
} while (--retries > 0);
|
||||
|
||||
if (val < 0) {
|
||||
error = val;
|
||||
dev_dbg(&client->dev,
|
||||
"failed to read 0x08 register, error %d\n", error);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (retries == 0) {
|
||||
dev_dbg(&client->dev,
|
||||
"timed out waiting for register to settle\n");
|
||||
error = -ETIMEDOUT;
|
||||
goto out;
|
||||
}
|
||||
|
||||
rdbuf = tsdata->raw_buffer;
|
||||
colbytes = tsdata->num_y * sizeof(u16);
|
||||
|
||||
wrbuf[0] = 0xf5;
|
||||
wrbuf[1] = 0x0e;
|
||||
for (i = 0; i < tsdata->num_x; i++) {
|
||||
wrbuf[2] = i; /* column index */
|
||||
error = edt_ft5x06_ts_readwrite(tsdata->client,
|
||||
sizeof(wrbuf), wrbuf,
|
||||
colbytes, rdbuf);
|
||||
if (error)
|
||||
goto out;
|
||||
|
||||
rdbuf += colbytes;
|
||||
}
|
||||
|
||||
read = min_t(size_t, count, tsdata->raw_bufsize - *off);
|
||||
error = copy_to_user(buf, tsdata->raw_buffer + *off, read);
|
||||
if (!error)
|
||||
*off += read;
|
||||
out:
|
||||
mutex_unlock(&tsdata->mutex);
|
||||
return error ?: read;
|
||||
};
|
||||
|
||||
|
||||
static const struct file_operations debugfs_raw_data_fops = {
|
||||
.open = edt_ft5x06_debugfs_raw_data_open,
|
||||
.read = edt_ft5x06_debugfs_raw_data_read,
|
||||
};
|
||||
|
||||
static void __devinit
|
||||
edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata,
|
||||
const char *debugfs_name)
|
||||
{
|
||||
tsdata->debug_dir = debugfs_create_dir(debugfs_name, NULL);
|
||||
if (!tsdata->debug_dir)
|
||||
return;
|
||||
|
||||
debugfs_create_u16("num_x", S_IRUSR, tsdata->debug_dir, &tsdata->num_x);
|
||||
debugfs_create_u16("num_y", S_IRUSR, tsdata->debug_dir, &tsdata->num_y);
|
||||
|
||||
debugfs_create_file("mode", S_IRUSR | S_IWUSR,
|
||||
tsdata->debug_dir, tsdata, &debugfs_mode_fops);
|
||||
debugfs_create_file("raw_data", S_IRUSR,
|
||||
tsdata->debug_dir, tsdata, &debugfs_raw_data_fops);
|
||||
}
|
||||
|
||||
static void __devexit
|
||||
edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
|
||||
{
|
||||
if (tsdata->debug_dir)
|
||||
debugfs_remove_recursive(tsdata->debug_dir);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static inline void
|
||||
edt_ft5x06_ts_prepare_debugfs(struct edt_ft5x06_ts_data *tsdata,
|
||||
const char *debugfs_name)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void
|
||||
edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
|
||||
{
|
||||
}
|
||||
|
||||
#endif /* CONFIG_DEBUGFS */
|
||||
|
||||
|
||||
|
||||
static int __devinit edt_ft5x06_ts_reset(struct i2c_client *client,
|
||||
int reset_pin)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (gpio_is_valid(reset_pin)) {
|
||||
/* this pulls reset down, enabling the low active reset */
|
||||
error = gpio_request_one(reset_pin, GPIOF_OUT_INIT_LOW,
|
||||
"edt-ft5x06 reset");
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"Failed to request GPIO %d as reset pin, error %d\n",
|
||||
reset_pin, error);
|
||||
return error;
|
||||
}
|
||||
|
||||
mdelay(50);
|
||||
gpio_set_value(reset_pin, 1);
|
||||
mdelay(100);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __devinit edt_ft5x06_ts_identify(struct i2c_client *client,
|
||||
char *model_name,
|
||||
char *fw_version)
|
||||
{
|
||||
u8 rdbuf[EDT_NAME_LEN];
|
||||
char *p;
|
||||
int error;
|
||||
|
||||
error = edt_ft5x06_ts_readwrite(client, 1, "\xbb",
|
||||
EDT_NAME_LEN - 1, rdbuf);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
/* remove last '$' end marker */
|
||||
rdbuf[EDT_NAME_LEN - 1] = '\0';
|
||||
if (rdbuf[EDT_NAME_LEN - 2] == '$')
|
||||
rdbuf[EDT_NAME_LEN - 2] = '\0';
|
||||
|
||||
/* look for Model/Version separator */
|
||||
p = strchr(rdbuf, '*');
|
||||
if (p)
|
||||
*p++ = '\0';
|
||||
|
||||
strlcpy(model_name, rdbuf + 1, EDT_NAME_LEN);
|
||||
strlcpy(fw_version, p ? p : "", EDT_NAME_LEN);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define EDT_ATTR_CHECKSET(name, reg) \
|
||||
if (pdata->name >= edt_ft5x06_attr_##name.limit_low && \
|
||||
pdata->name <= edt_ft5x06_attr_##name.limit_high) \
|
||||
edt_ft5x06_register_write(tsdata, reg, pdata->name)
|
||||
|
||||
static void __devinit
|
||||
edt_ft5x06_ts_get_defaults(struct edt_ft5x06_ts_data *tsdata,
|
||||
const struct edt_ft5x06_platform_data *pdata)
|
||||
{
|
||||
if (!pdata->use_parameters)
|
||||
return;
|
||||
|
||||
/* pick up defaults from the platform data */
|
||||
EDT_ATTR_CHECKSET(threshold, WORK_REGISTER_THRESHOLD);
|
||||
EDT_ATTR_CHECKSET(gain, WORK_REGISTER_GAIN);
|
||||
EDT_ATTR_CHECKSET(offset, WORK_REGISTER_OFFSET);
|
||||
EDT_ATTR_CHECKSET(report_rate, WORK_REGISTER_REPORT_RATE);
|
||||
}
|
||||
|
||||
static void __devinit
|
||||
edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
|
||||
{
|
||||
tsdata->threshold = edt_ft5x06_register_read(tsdata,
|
||||
WORK_REGISTER_THRESHOLD);
|
||||
tsdata->gain = edt_ft5x06_register_read(tsdata, WORK_REGISTER_GAIN);
|
||||
tsdata->offset = edt_ft5x06_register_read(tsdata, WORK_REGISTER_OFFSET);
|
||||
tsdata->report_rate = edt_ft5x06_register_read(tsdata,
|
||||
WORK_REGISTER_REPORT_RATE);
|
||||
tsdata->num_x = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_X);
|
||||
tsdata->num_y = edt_ft5x06_register_read(tsdata, WORK_REGISTER_NUM_Y);
|
||||
}
|
||||
|
||||
static int __devinit edt_ft5x06_ts_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
const struct edt_ft5x06_platform_data *pdata =
|
||||
client->dev.platform_data;
|
||||
struct edt_ft5x06_ts_data *tsdata;
|
||||
struct input_dev *input;
|
||||
int error;
|
||||
char fw_version[EDT_NAME_LEN];
|
||||
|
||||
dev_dbg(&client->dev, "probing for EDT FT5x06 I2C\n");
|
||||
|
||||
if (!pdata) {
|
||||
dev_err(&client->dev, "no platform data?\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
error = edt_ft5x06_ts_reset(client, pdata->reset_pin);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
if (gpio_is_valid(pdata->irq_pin)) {
|
||||
error = gpio_request_one(pdata->irq_pin,
|
||||
GPIOF_IN, "edt-ft5x06 irq");
|
||||
if (error) {
|
||||
dev_err(&client->dev,
|
||||
"Failed to request GPIO %d, error %d\n",
|
||||
pdata->irq_pin, error);
|
||||
return error;
|
||||
}
|
||||
}
|
||||
|
||||
tsdata = kzalloc(sizeof(*tsdata), GFP_KERNEL);
|
||||
input = input_allocate_device();
|
||||
if (!tsdata || !input) {
|
||||
dev_err(&client->dev, "failed to allocate driver data.\n");
|
||||
error = -ENOMEM;
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
mutex_init(&tsdata->mutex);
|
||||
tsdata->client = client;
|
||||
tsdata->input = input;
|
||||
tsdata->factory_mode = false;
|
||||
|
||||
error = edt_ft5x06_ts_identify(client, tsdata->name, fw_version);
|
||||
if (error) {
|
||||
dev_err(&client->dev, "touchscreen probe failed\n");
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
edt_ft5x06_ts_get_defaults(tsdata, pdata);
|
||||
edt_ft5x06_ts_get_parameters(tsdata);
|
||||
|
||||
dev_dbg(&client->dev,
|
||||
"Model \"%s\", Rev. \"%s\", %dx%d sensors\n",
|
||||
tsdata->name, fw_version, tsdata->num_x, tsdata->num_y);
|
||||
|
||||
input->name = tsdata->name;
|
||||
input->id.bustype = BUS_I2C;
|
||||
input->dev.parent = &client->dev;
|
||||
|
||||
__set_bit(EV_SYN, input->evbit);
|
||||
__set_bit(EV_KEY, input->evbit);
|
||||
__set_bit(EV_ABS, input->evbit);
|
||||
__set_bit(BTN_TOUCH, input->keybit);
|
||||
input_set_abs_params(input, ABS_X, 0, tsdata->num_x * 64 - 1, 0, 0);
|
||||
input_set_abs_params(input, ABS_Y, 0, tsdata->num_y * 64 - 1, 0, 0);
|
||||
input_set_abs_params(input, ABS_MT_POSITION_X,
|
||||
0, tsdata->num_x * 64 - 1, 0, 0);
|
||||
input_set_abs_params(input, ABS_MT_POSITION_Y,
|
||||
0, tsdata->num_y * 64 - 1, 0, 0);
|
||||
error = input_mt_init_slots(input, MAX_SUPPORT_POINTS);
|
||||
if (error) {
|
||||
dev_err(&client->dev, "Unable to init MT slots.\n");
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
input_set_drvdata(input, tsdata);
|
||||
i2c_set_clientdata(client, tsdata);
|
||||
|
||||
error = request_threaded_irq(client->irq, NULL, edt_ft5x06_ts_isr,
|
||||
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
|
||||
client->name, tsdata);
|
||||
if (error) {
|
||||
dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
|
||||
goto err_free_mem;
|
||||
}
|
||||
|
||||
error = sysfs_create_group(&client->dev.kobj, &edt_ft5x06_attr_group);
|
||||
if (error)
|
||||
goto err_free_irq;
|
||||
|
||||
error = input_register_device(input);
|
||||
if (error)
|
||||
goto err_remove_attrs;
|
||||
|
||||
edt_ft5x06_ts_prepare_debugfs(tsdata, dev_driver_string(&client->dev));
|
||||
device_init_wakeup(&client->dev, 1);
|
||||
|
||||
dev_dbg(&client->dev,
|
||||
"EDT FT5x06 initialized: IRQ pin %d, Reset pin %d.\n",
|
||||
pdata->irq_pin, pdata->reset_pin);
|
||||
|
||||
return 0;
|
||||
|
||||
err_remove_attrs:
|
||||
sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
|
||||
err_free_irq:
|
||||
free_irq(client->irq, tsdata);
|
||||
err_free_mem:
|
||||
input_free_device(input);
|
||||
kfree(tsdata);
|
||||
|
||||
if (gpio_is_valid(pdata->irq_pin))
|
||||
gpio_free(pdata->irq_pin);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int __devexit edt_ft5x06_ts_remove(struct i2c_client *client)
|
||||
{
|
||||
const struct edt_ft5x06_platform_data *pdata =
|
||||
dev_get_platdata(&client->dev);
|
||||
struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
|
||||
|
||||
edt_ft5x06_ts_teardown_debugfs(tsdata);
|
||||
sysfs_remove_group(&client->dev.kobj, &edt_ft5x06_attr_group);
|
||||
|
||||
free_irq(client->irq, tsdata);
|
||||
input_unregister_device(tsdata->input);
|
||||
|
||||
if (gpio_is_valid(pdata->irq_pin))
|
||||
gpio_free(pdata->irq_pin);
|
||||
if (gpio_is_valid(pdata->reset_pin))
|
||||
gpio_free(pdata->reset_pin);
|
||||
|
||||
kfree(tsdata->raw_buffer);
|
||||
kfree(tsdata);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static int edt_ft5x06_ts_suspend(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
|
||||
if (device_may_wakeup(dev))
|
||||
enable_irq_wake(client->irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int edt_ft5x06_ts_resume(struct device *dev)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
|
||||
if (device_may_wakeup(dev))
|
||||
disable_irq_wake(client->irq);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static SIMPLE_DEV_PM_OPS(edt_ft5x06_ts_pm_ops,
|
||||
edt_ft5x06_ts_suspend, edt_ft5x06_ts_resume);
|
||||
|
||||
static const struct i2c_device_id edt_ft5x06_ts_id[] = {
|
||||
{ "edt-ft5x06", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id);
|
||||
|
||||
static struct i2c_driver edt_ft5x06_ts_driver = {
|
||||
.driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "edt_ft5x06",
|
||||
.pm = &edt_ft5x06_ts_pm_ops,
|
||||
},
|
||||
.id_table = edt_ft5x06_ts_id,
|
||||
.probe = edt_ft5x06_ts_probe,
|
||||
.remove = __devexit_p(edt_ft5x06_ts_remove),
|
||||
};
|
||||
|
||||
module_i2c_driver(edt_ft5x06_ts_driver);
|
||||
|
||||
MODULE_AUTHOR("Simon Budig <simon.budig@kernelconcepts.de>");
|
||||
MODULE_DESCRIPTION("EDT FT5x06 I2C Touchscreen Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
#ifndef _EDT_FT5X06_H
|
||||
#define _EDT_FT5X06_H
|
||||
|
||||
/*
|
||||
* Copyright (c) 2012 Simon Budig, <simon.budig@kernelconcepts.de>
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
struct edt_ft5x06_platform_data {
|
||||
int irq_pin;
|
||||
int reset_pin;
|
||||
|
||||
/* startup defaults for operational parameters */
|
||||
bool use_parameters;
|
||||
u8 gain;
|
||||
u8 threshold;
|
||||
u8 offset;
|
||||
u8 report_rate;
|
||||
};
|
||||
|
||||
#endif /* _EDT_FT5X06_H */
|
||||
Loading…
Reference in New Issue