Commit | Line | Data |
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4065d1e7 | 1 | /* |
9664877e | 2 | * cyttsp_i2c.c |
4065d1e7 JMC |
3 | * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver. |
4 | * For use with Cypress Txx3xx parts. | |
5 | * Supported parts include: | |
6 | * CY8CTST341 | |
7 | * CY8CTMA340 | |
8 | * | |
9 | * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. | |
10 | * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License | |
14 | * version 2, and only version 2, as published by the | |
15 | * Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
9664877e | 22 | * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com> |
4065d1e7 JMC |
23 | * |
24 | */ | |
25 | ||
26 | #include "cyttsp_core.h" | |
27 | ||
28 | #include <linux/i2c.h> | |
29 | #include <linux/input.h> | |
30 | ||
31 | #define CY_I2C_DATA_SIZE 128 | |
32 | ||
4065d1e7 JMC |
33 | static const struct cyttsp_bus_ops cyttsp_i2c_bus_ops = { |
34 | .bustype = BUS_I2C, | |
35 | .write = cyttsp_i2c_write_block_data, | |
36 | .read = cyttsp_i2c_read_block_data, | |
37 | }; | |
38 | ||
5298cc4c | 39 | static int cyttsp_i2c_probe(struct i2c_client *client, |
4065d1e7 JMC |
40 | const struct i2c_device_id *id) |
41 | { | |
42 | struct cyttsp *ts; | |
43 | ||
44 | if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
45 | dev_err(&client->dev, "I2C functionality not Supported\n"); | |
46 | return -EIO; | |
47 | } | |
48 | ||
49 | ts = cyttsp_probe(&cyttsp_i2c_bus_ops, &client->dev, client->irq, | |
50 | CY_I2C_DATA_SIZE); | |
51 | ||
52 | if (IS_ERR(ts)) | |
53 | return PTR_ERR(ts); | |
54 | ||
55 | i2c_set_clientdata(client, ts); | |
4065d1e7 JMC |
56 | return 0; |
57 | } | |
58 | ||
e2619cf7 | 59 | static int cyttsp_i2c_remove(struct i2c_client *client) |
4065d1e7 JMC |
60 | { |
61 | struct cyttsp *ts = i2c_get_clientdata(client); | |
62 | ||
63 | cyttsp_remove(ts); | |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 | static const struct i2c_device_id cyttsp_i2c_id[] = { | |
69 | { CY_I2C_NAME, 0 }, | |
70 | { } | |
71 | }; | |
72 | MODULE_DEVICE_TABLE(i2c, cyttsp_i2c_id); | |
73 | ||
74 | static struct i2c_driver cyttsp_i2c_driver = { | |
75 | .driver = { | |
76 | .name = CY_I2C_NAME, | |
77 | .owner = THIS_MODULE, | |
78 | .pm = &cyttsp_pm_ops, | |
79 | }, | |
80 | .probe = cyttsp_i2c_probe, | |
1cb0aa88 | 81 | .remove = cyttsp_i2c_remove, |
4065d1e7 JMC |
82 | .id_table = cyttsp_i2c_id, |
83 | }; | |
84 | ||
4a533835 | 85 | module_i2c_driver(cyttsp_i2c_driver); |
4065d1e7 JMC |
86 | |
87 | MODULE_LICENSE("GPL"); | |
88 | MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver"); | |
89 | MODULE_AUTHOR("Cypress"); | |
90 | MODULE_ALIAS("i2c:cyttsp"); |