/* * cyttsp_i2c.c * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver. * For use with Cypress Txx4xx parts. * Supported parts include: * TMA4XX * TMA1036 * * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> * Copyright (C) 2013 Cypress Semiconductor * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2, and only version 2, as published by the * Free Software Foundation. * * 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. * * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com> * */ #include "cyttsp4_core.h" #include <linux/i2c.h> #include <linux/input.h> #define CYTTSP4_I2C_DATA_SIZE (3 * 256) static const struct cyttsp4_bus_ops cyttsp4_i2c_bus_ops = { .bustype = BUS_I2C, .write = cyttsp_i2c_write_block_data, .read = cyttsp_i2c_read_block_data, }; static int cyttsp4_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct cyttsp4 *ts; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { dev_err(&client->dev, "I2C functionality not Supported\n"); return -EIO; } ts = cyttsp4_probe(&cyttsp4_i2c_bus_ops, &client->dev, client->irq, CYTTSP4_I2C_DATA_SIZE); return PTR_ERR_OR_ZERO(ts); } static int cyttsp4_i2c_remove(struct i2c_client *client) { struct cyttsp4 *ts = i2c_get_clientdata(client); cyttsp4_remove(ts); return 0; } static const struct i2c_device_id cyttsp4_i2c_id[] = { { CYTTSP4_I2C_NAME, 0 }, { } }; MODULE_DEVICE_TABLE(i2c, cyttsp4_i2c_id); static struct i2c_driver cyttsp4_i2c_driver = { .driver = { .name = CYTTSP4_I2C_NAME, .pm = &cyttsp4_pm_ops, }, .probe = cyttsp4_i2c_probe, .remove = cyttsp4_i2c_remove, .id_table = cyttsp4_i2c_id, }; module_i2c_driver(cyttsp4_i2c_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver"); MODULE_AUTHOR("Cypress"); |