summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/drivers/input/touchscreen/penmount.c
diff options
context:
space:
mode:
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/touchscreen/penmount.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/touchscreen/penmount.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/ANDROID_3.4.5/drivers/input/touchscreen/penmount.c b/ANDROID_3.4.5/drivers/input/touchscreen/penmount.c
deleted file mode 100644
index 4c012fb2..00000000
--- a/ANDROID_3.4.5/drivers/input/touchscreen/penmount.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Penmount serial touchscreen driver
- *
- * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
- * Copyright (c) 2011 John Sung <penmount.touch@gmail.com>
- *
- * Based on ELO driver (drivers/input/touchscreen/elo.c)
- * Copyright (c) 2004 Vojtech Pavlik
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/input/mt.h>
-#include <linux/serio.h>
-#include <linux/init.h>
-
-#define DRIVER_DESC "PenMount serial touchscreen driver"
-
-MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
-MODULE_AUTHOR("John Sung <penmount.touch@gmail.com>");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-/*
- * Definitions & global arrays.
- */
-
-#define PM_MAX_LENGTH 6
-#define PM_MAX_MTSLOT 16
-#define PM_3000_MTSLOT 2
-#define PM_6250_MTSLOT 12
-
-/*
- * Multi-touch slot
- */
-
-struct mt_slot {
- unsigned short x, y;
- bool active; /* is the touch valid? */
-};
-
-/*
- * Per-touchscreen data.
- */
-
-struct pm {
- struct input_dev *dev;
- struct serio *serio;
- int idx;
- unsigned char data[PM_MAX_LENGTH];
- char phys[32];
- unsigned char packetsize;
- unsigned char maxcontacts;
- struct mt_slot slots[PM_MAX_MTSLOT];
- void (*parse_packet)(struct pm *);
-};
-
-/*
- * pm_mtevent() sends mt events and also emulates pointer movement
- */
-
-static void pm_mtevent(struct pm *pm, struct input_dev *input)
-{
- int i;
-
- for (i = 0; i < pm->maxcontacts; ++i) {
- input_mt_slot(input, i);
- input_mt_report_slot_state(input, MT_TOOL_FINGER,
- pm->slots[i].active);
- if (pm->slots[i].active) {
- input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
- input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
- }
- }
-
- input_mt_report_pointer_emulation(input, true);
- input_sync(input);
-}
-
-/*
- * pm_checkpacket() checks if data packet is valid
- */
-
-static bool pm_checkpacket(unsigned char *packet)
-{
- int total = 0;
- int i;
-
- for (i = 0; i < 5; i++)
- total += packet[i];
-
- return packet[5] == (unsigned char)~(total & 0xff);
-}
-
-static void pm_parse_9000(struct pm *pm)
-{
- struct input_dev *dev = pm->dev;
-
- if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {
- input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
- input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
- input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
- input_sync(dev);
- pm->idx = 0;
- }
-}
-
-static void pm_parse_6000(struct pm *pm)
-{
- struct input_dev *dev = pm->dev;
-
- if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {
- if (pm_checkpacket(pm->data)) {
- input_report_abs(dev, ABS_X,
- pm->data[2] * 256 + pm->data[1]);
- input_report_abs(dev, ABS_Y,
- pm->data[4] * 256 + pm->data[3]);
- input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);
- input_sync(dev);
- }
- pm->idx = 0;
- }
-}
-
-static void pm_parse_3000(struct pm *pm)
-{
- struct input_dev *dev = pm->dev;
-
- if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {
- if (pm_checkpacket(pm->data)) {
- int slotnum = pm->data[0] & 0x0f;
- pm->slots[slotnum].active = pm->data[0] & 0x30;
- pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
- pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
- pm_mtevent(pm, dev);
- }
- pm->idx = 0;
- }
-}
-
-static void pm_parse_6250(struct pm *pm)
-{
- struct input_dev *dev = pm->dev;
-
- if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {
- if (pm_checkpacket(pm->data)) {
- int slotnum = pm->data[0] & 0x0f;
- pm->slots[slotnum].active = pm->data[0] & 0x40;
- pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
- pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
- pm_mtevent(pm, dev);
- }
- pm->idx = 0;
- }
-}
-
-static irqreturn_t pm_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags)
-{
- struct pm *pm = serio_get_drvdata(serio);
-
- pm->data[pm->idx] = data;
-
- pm->parse_packet(pm);
-
- return IRQ_HANDLED;
-}
-
-/*
- * pm_disconnect() is the opposite of pm_connect()
- */
-
-static void pm_disconnect(struct serio *serio)
-{
- struct pm *pm = serio_get_drvdata(serio);
-
- serio_close(serio);
-
- input_unregister_device(pm->dev);
- kfree(pm);
-
- serio_set_drvdata(serio, NULL);
-}
-
-/*
- * pm_connect() is the routine that is called when someone adds a
- * new serio device that supports PenMount protocol and registers it as
- * an input device.
- */
-
-static int pm_connect(struct serio *serio, struct serio_driver *drv)
-{
- struct pm *pm;
- struct input_dev *input_dev;
- int max_x, max_y;
- int err;
-
- pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!pm || !input_dev) {
- err = -ENOMEM;
- goto fail1;
- }
-
- pm->serio = serio;
- pm->dev = input_dev;
- snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
- pm->maxcontacts = 1;
-
- input_dev->name = "PenMount Serial TouchScreen";
- input_dev->phys = pm->phys;
- input_dev->id.bustype = BUS_RS232;
- input_dev->id.vendor = SERIO_PENMOUNT;
- input_dev->id.product = 0;
- input_dev->id.version = 0x0100;
- input_dev->dev.parent = &serio->dev;
-
- input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
- input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
-
- switch (serio->id.id) {
- default:
- case 0:
- pm->packetsize = 5;
- pm->parse_packet = pm_parse_9000;
- input_dev->id.product = 0x9000;
- max_x = max_y = 0x3ff;
- break;
-
- case 1:
- pm->packetsize = 6;
- pm->parse_packet = pm_parse_6000;
- input_dev->id.product = 0x6000;
- max_x = max_y = 0x3ff;
- break;
-
- case 2:
- pm->packetsize = 6;
- pm->parse_packet = pm_parse_3000;
- input_dev->id.product = 0x3000;
- max_x = max_y = 0x7ff;
- pm->maxcontacts = PM_3000_MTSLOT;
- break;
-
- case 3:
- pm->packetsize = 6;
- pm->parse_packet = pm_parse_6250;
- input_dev->id.product = 0x6250;
- max_x = max_y = 0x3ff;
- pm->maxcontacts = PM_6250_MTSLOT;
- break;
- }
-
- input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);
- input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);
-
- if (pm->maxcontacts > 1) {
- input_mt_init_slots(pm->dev, pm->maxcontacts);
- input_set_abs_params(pm->dev,
- ABS_MT_POSITION_X, 0, max_x, 0, 0);
- input_set_abs_params(pm->dev,
- ABS_MT_POSITION_Y, 0, max_y, 0, 0);
- }
-
- serio_set_drvdata(serio, pm);
-
- err = serio_open(serio, drv);
- if (err)
- goto fail2;
-
- err = input_register_device(pm->dev);
- if (err)
- goto fail3;
-
- return 0;
-
- fail3: serio_close(serio);
- fail2: serio_set_drvdata(serio, NULL);
- fail1: input_free_device(input_dev);
- kfree(pm);
- return err;
-}
-
-/*
- * The serio driver structure.
- */
-
-static struct serio_device_id pm_serio_ids[] = {
- {
- .type = SERIO_RS232,
- .proto = SERIO_PENMOUNT,
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
- { 0 }
-};
-
-MODULE_DEVICE_TABLE(serio, pm_serio_ids);
-
-static struct serio_driver pm_drv = {
- .driver = {
- .name = "serio-penmount",
- },
- .description = DRIVER_DESC,
- .id_table = pm_serio_ids,
- .interrupt = pm_interrupt,
- .connect = pm_connect,
- .disconnect = pm_disconnect,
-};
-
-/*
- * The functions for inserting/removing us as a module.
- */
-
-static int __init pm_init(void)
-{
- return serio_register_driver(&pm_drv);
-}
-
-static void __exit pm_exit(void)
-{
- serio_unregister_driver(&pm_drv);
-}
-
-module_init(pm_init);
-module_exit(pm_exit);
generated by cgit (git 2.34.1) at 2025-01-23 19:45:57 +0000