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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/input/touchscreen/tsc40.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
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.c | 184 |
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"); |