/* * cyttsp_i2c.c * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver. * For use with Cypress Txx3xx parts. * Supported parts include: * CY8CTST341 * CY8CTMA340 * * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> * * 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 "cyttsp_core.h" #include <linux/i2c.h> #include <linux/input.h> #define CY_I2C_DATA_SIZE 128 static const struct cyttsp_bus_ops cyttsp_i2c_bus_ops = { .bustype = BUS_I2C, .write = cyttsp_i2c_write_block_data, .read = cyttsp_i2c_read_block_data, }; static int cyttsp_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct cyttsp *ts; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { dev_err(&client->dev, "I2C functionality not Supported\n"); return -EIO; } ts = cyttsp_probe(&cyttsp_i2c_bus_ops, &client->dev, client->irq, CY_I2C_DATA_SIZE); if (IS_ERR(ts)) return PTR_ERR(ts); i2c_set_clientdata(client, ts); return 0; } static const struct i2c_device_id cyttsp_i2c_id[] = { { CY_I2C_NAME, 0 }, { } }; MODULE_DEVICE_TABLE(i2c, cyttsp_i2c_id); static struct i2c_driver cyttsp_i2c_driver = { .driver = { .name = CY_I2C_NAME, .pm = &cyttsp_pm_ops, }, .probe = cyttsp_i2c_probe, .id_table = cyttsp_i2c_id, }; module_i2c_driver(cyttsp_i2c_driver); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver"); MODULE_AUTHOR("Cypress");