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/*
* arch/arm/mach-tegra/board-touch-atmel_maxtouch.c
*
* Copyright (c) 2011, NVIDIA Corporation.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#if defined(CONFIG_TOUCHSCREEN_ATMEL_MXT)
#include <linux/i2c/atmel_mxt_ts.h>
#endif
#if defined(CONFIG_TOUCHSCREEN_ATMEL_MT_T9)
#include <linux/i2c/atmel_maxtouch.h>
#endif
#if defined(CONFIG_MACH_CARDHU)
#include "board-cardhu.h"
#define MXT_I2C_ADDRESS MXT1386_I2C_ADDR3
#endif
#if defined(CONFIG_MACH_TEGRA_ENTERPRISE)
#include "board-enterprise.h"
#define MXT_I2C_ADDRESS MXT224_I2C_ADDR1
#endif
#if defined(CONFIG_MACH_VENTANA)
#include "board-ventana.h"
#define MXT_I2C_ADDRESS MXT1386_I2C_ADDR3
#endif
#include "gpio-names.h"
#include "touch.h"
#if defined(CONFIG_TOUCHSCREEN_ATMEL_MXT)
/* Atmel MaxTouch touchscreen Driver data */
/*-----------------------------------------------------*/
/*
* Config converted from memory-mapped cfg-file with
* following version information:
*
*
*
* FAMILY_ID=160
* VARIANT=0
* VERSION=16
* BUILD=170
* VENDOR_ID=255
* PRODUCT_ID=TBD
* CHECKSUM=0x144A89
*
*
*/
#if defined(CONFIG_MACH_VENTANA) || defined(CONFIG_MACH_CARDHU)
#define MXT_CONFIG_CRC 0xD62DE8
static const u8 config[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0x32, 0x0A, 0x00, 0x14, 0x14, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x00, 0x00,
0x1B, 0x2A, 0x00, 0x20, 0x3C, 0x04, 0x05, 0x00,
0x02, 0x01, 0x00, 0x0A, 0x0A, 0x0A, 0x0A, 0xFF,
0x02, 0x55, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x64, 0x02, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x23,
0x00, 0x00, 0x00, 0x05, 0x0A, 0x15, 0x1E, 0x00,
0x00, 0x04, 0xFF, 0x03, 0x3F, 0x64, 0x64, 0x01,
0x0A, 0x14, 0x28, 0x4B, 0x00, 0x02, 0x00, 0x64,
0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x08, 0x10, 0x3C, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static struct mxt_platform_data atmel_mxt_info = {
.x_line = 27,
.y_line = 42,
.x_size = 768,
.y_size = 1366,
.blen = 0x20,
.threshold = 0x3C,
.voltage = 3300000, /* 3.3V */
.orient = 5,
.config = config,
.config_length = 157,
.config_crc = MXT_CONFIG_CRC,
.irqflags = IRQF_TRIGGER_FALLING,
/* .read_chg = &read_chg, */
.read_chg = NULL,
};
#endif /* CONFIG_MACH_VENTANA, CONFIG_MACH_CARDHU */
#if defined(CONFIG_MACH_TEGRA_ENTERPRISE)
#define MXT_CONFIG_CRC 0x62F903
/*
* Config converted from memory-mapped cfg-file with
* following version information:
*
*
*
* FAMILY_ID=128
* VARIANT=1
* VERSION=32
* BUILD=170
* VENDOR_ID=255
* PRODUCT_ID=TBD
* CHECKSUM=0xC189B6
*
*
*/
static const u8 config[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xFF, 0x32, 0x0A, 0x00, 0x05, 0x01, 0x00,
0x00, 0x1E, 0x0A, 0x8B, 0x00, 0x00, 0x13, 0x0B,
0x00, 0x10, 0x32, 0x03, 0x03, 0x00, 0x03, 0x01,
0x00, 0x0A, 0x0A, 0x0A, 0x0A, 0xBF, 0x03, 0x1B,
0x02, 0x00, 0x00, 0x37, 0x37, 0x00, 0x00, 0x00,
0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xA9, 0x7F, 0x9A, 0x0E, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x03, 0x23, 0x00, 0x00, 0x00, 0x0A,
0x0F, 0x14, 0x19, 0x03, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x00, 0x03, 0x08, 0x10,
0x00
};
static struct mxt_platform_data atmel_mxt_info = {
.x_line = 19,
.y_line = 11,
.x_size = 960,
.y_size = 540,
.blen = 0x10,
.threshold = 0x32,
.voltage = 3300000, /* 3.3V */
.orient = 3,
.config = config,
.config_length = 168,
.config_crc = MXT_CONFIG_CRC,
.irqflags = IRQF_TRIGGER_FALLING,
/* .read_chg = &read_chg, */
.read_chg = NULL,
};
#endif /* CONFIG_MACH_TEGRA_ENTERPRISE */
/* Reads the CHANGELINE state; interrupt is valid if the changeline
* is low.
*
static u8 read_chg(void)
{
return gpio_get_value(TOUCH_GPIO_IRQ_ATMEL_T9);
}
*/
static struct i2c_board_info __initdata atmxt_i2c_info[] = {
{
I2C_BOARD_INFO("atmel_mxt_ts", MXT_I2C_ADDRESS),
.irq = TEGRA_GPIO_TO_IRQ(TOUCH_GPIO_IRQ_ATMEL_T9),
.platform_data = &atmel_mxt_info,
},
};
#endif
#if defined(CONFIG_TOUCHSCREEN_ATMEL_MT_T9)
/* Atmel MaxTouch touchscreen Driver data */
/*-----------------------------------------------------*/
/*
* Reads the CHANGELINE state; interrupt is valid if the changeline
* is low.
*/
static u8 read_chg(void)
{
return gpio_get_value(TOUCH_GPIO_IRQ_ATMEL_T9);
}
static u8 valid_interrupt(void)
{
return !read_chg();
}
static struct mxt_platform_data atmel_mxt_info = {
/* Maximum number of simultaneous touches to report. */
.numtouch = 10,
/* TODO: no need for any hw-specific things at init/exit? */
.init_platform_hw = NULL,
.exit_platform_hw = NULL,
#if defined(CONFIG_MACH_TEGRA_ENTERPRISE)
.max_x = 540,
.max_y = 960,
#else
.max_x = 1366,
.max_y = 768,
#endif
.valid_interrupt = &valid_interrupt,
.read_chg = &read_chg,
};
static struct i2c_board_info __initdata atmxt_i2c_info[] = {
{
I2C_BOARD_INFO("maXTouch", MXT_I2C_ADDRESS),
.irq = TEGRA_GPIO_TO_IRQ(TOUCH_GPIO_IRQ_ATMEL_T9),
.platform_data = &atmel_mxt_info,
},
};
#endif
struct tegra_touchscreen_init __initdata atmel_mxt_init_data = {
.irq_gpio = TOUCH_GPIO_IRQ_ATMEL_T9, /* GPIO1 Value for IRQ */
.rst_gpio = TOUCH_GPIO_RST_ATMEL_T9, /* GPIO2 Value for RST */
.sv_gpio2 = {1, TOUCH_GPIO_RST_ATMEL_T9, 1, 100}, /* Valid, GPIOx, Set value, Delay */
.ts_boardinfo = {TOUCH_BUS_ATMEL_T9, atmxt_i2c_info, 1} /* BusNum, BoardInfo, Value */
};
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