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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c b/ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c
deleted file mode 100644
index 29d5ed4d..00000000
--- a/ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- * TSC-40 serial touchscreen driver. It should be compatible with
- * TSC-10 and 25.
- *
- * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- * License: GPLv2 as published by the FSF.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/serio.h>
-#include <linux/init.h>
-
-#define PACKET_LENGTH 5
-struct tsc_ser {
- struct input_dev *dev;
- struct serio *serio;
- u32 idx;
- unsigned char data[PACKET_LENGTH];
- char phys[32];
-};
-
-static void tsc_process_data(struct tsc_ser *ptsc)
-{
- struct input_dev *dev = ptsc->dev;
- u8 *data = ptsc->data;
- u32 x;
- u32 y;
-
- x = ((data[1] & 0x03) << 8) | data[2];
- y = ((data[3] & 0x03) << 8) | data[4];
-
- input_report_abs(dev, ABS_X, x);
- input_report_abs(dev, ABS_Y, y);
- input_report_key(dev, BTN_TOUCH, 1);
-
- input_sync(dev);
-}
-
-static irqreturn_t tsc_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags)
-{
- struct tsc_ser *ptsc = serio_get_drvdata(serio);
- struct input_dev *dev = ptsc->dev;
-
- ptsc->data[ptsc->idx] = data;
- switch (ptsc->idx++) {
- case 0:
- if (unlikely((data & 0x3e) != 0x10)) {
- dev_dbg(&serio->dev,
- "unsynchronized packet start (0x%02x)\n", data);
- ptsc->idx = 0;
- } else if (!(data & 0x01)) {
- input_report_key(dev, BTN_TOUCH, 0);
- input_sync(dev);
- ptsc->idx = 0;
- }
- break;
-
- case 1:
- case 3:
- if (unlikely(data & 0xfc)) {
- dev_dbg(&serio->dev,
- "unsynchronized data 0x%02x at offset %d\n",
- data, ptsc->idx - 1);
- ptsc->idx = 0;
- }
- break;
-
- case 4:
- tsc_process_data(ptsc);
- ptsc->idx = 0;
- break;
- }
-
- return IRQ_HANDLED;
-}
-
-static int tsc_connect(struct serio *serio, struct serio_driver *drv)
-{
- struct tsc_ser *ptsc;
- struct input_dev *input_dev;
- int error;
-
- ptsc = kzalloc(sizeof(struct tsc_ser), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!ptsc || !input_dev) {
- error = -ENOMEM;
- goto fail1;
- }
-
- ptsc->serio = serio;
- ptsc->dev = input_dev;
- snprintf(ptsc->phys, sizeof(ptsc->phys), "%s/input0", serio->phys);
-
- input_dev->name = "TSC-10/25/40 Serial TouchScreen";
- input_dev->phys = ptsc->phys;
- input_dev->id.bustype = BUS_RS232;
- input_dev->id.vendor = SERIO_TSC40;
- input_dev->id.product = 40;
- input_dev->id.version = 0x0001;
- input_dev->dev.parent = &serio->dev;
-
- input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
- __set_bit(BTN_TOUCH, input_dev->keybit);
- input_set_abs_params(ptsc->dev, ABS_X, 0, 0x3ff, 0, 0);
- input_set_abs_params(ptsc->dev, ABS_Y, 0, 0x3ff, 0, 0);
- input_set_abs_params(ptsc->dev, ABS_PRESSURE, 0, 0, 0, 0);
-
- serio_set_drvdata(serio, ptsc);
-
- error = serio_open(serio, drv);
- if (error)
- goto fail2;
-
- error = input_register_device(ptsc->dev);
- if (error)
- goto fail3;
-
- return 0;
-
-fail3:
- serio_close(serio);
-fail2:
- serio_set_drvdata(serio, NULL);
-fail1:
- input_free_device(input_dev);
- kfree(ptsc);
- return error;
-}
-
-static void tsc_disconnect(struct serio *serio)
-{
- struct tsc_ser *ptsc = serio_get_drvdata(serio);
-
- serio_close(serio);
-
- input_unregister_device(ptsc->dev);
- kfree(ptsc);
-
- serio_set_drvdata(serio, NULL);
-}
-
-static struct serio_device_id tsc_serio_ids[] = {
- {
- .type = SERIO_RS232,
- .proto = SERIO_TSC40,
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
- { 0 }
-};
-MODULE_DEVICE_TABLE(serio, tsc_serio_ids);
-
-#define DRIVER_DESC "TSC-10/25/40 serial touchscreen driver"
-
-static struct serio_driver tsc_drv = {
- .driver = {
- .name = "tsc40",
- },
- .description = DRIVER_DESC,
- .id_table = tsc_serio_ids,
- .interrupt = tsc_interrupt,
- .connect = tsc_connect,
- .disconnect = tsc_disconnect,
-};
-
-static int __init tsc_ser_init(void)
-{
- return serio_register_driver(&tsc_drv);
-}
-module_init(tsc_ser_init);
-
-static void __exit tsc_exit(void)
-{
- serio_unregister_driver(&tsc_drv);
-}
-module_exit(tsc_exit);
-
-MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL v2");