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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
170 lines
3.7 KiB
C
170 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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*/
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/*
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* Gunze AHL-51S touchscreen driver for Linux
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*/
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/serio.h>
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#define DRIVER_DESC "Gunze AHL-51S touchscreen driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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/*
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* Definitions & global arrays.
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*/
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#define GUNZE_MAX_LENGTH 10
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/*
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* Per-touchscreen data.
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*/
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struct gunze {
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struct input_dev *dev;
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struct serio *serio;
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int idx;
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unsigned char data[GUNZE_MAX_LENGTH];
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char phys[32];
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};
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static void gunze_process_packet(struct gunze *gunze)
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{
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struct input_dev *dev = gunze->dev;
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if (gunze->idx != GUNZE_MAX_LENGTH || gunze->data[5] != ',' ||
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(gunze->data[0] != 'T' && gunze->data[0] != 'R')) {
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printk(KERN_WARNING "gunze.c: bad packet: >%.*s<\n", GUNZE_MAX_LENGTH, gunze->data);
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return;
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}
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input_report_abs(dev, ABS_X, simple_strtoul(gunze->data + 1, NULL, 10));
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input_report_abs(dev, ABS_Y, 1024 - simple_strtoul(gunze->data + 6, NULL, 10));
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input_report_key(dev, BTN_TOUCH, gunze->data[0] == 'T');
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input_sync(dev);
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}
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static irqreturn_t gunze_interrupt(struct serio *serio,
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unsigned char data, unsigned int flags)
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{
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struct gunze *gunze = serio_get_drvdata(serio);
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if (data == '\r') {
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gunze_process_packet(gunze);
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gunze->idx = 0;
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} else {
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if (gunze->idx < GUNZE_MAX_LENGTH)
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gunze->data[gunze->idx++] = data;
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}
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return IRQ_HANDLED;
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}
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/*
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* gunze_disconnect() is the opposite of gunze_connect()
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*/
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static void gunze_disconnect(struct serio *serio)
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{
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struct gunze *gunze = serio_get_drvdata(serio);
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input_get_device(gunze->dev);
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input_unregister_device(gunze->dev);
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serio_close(serio);
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serio_set_drvdata(serio, NULL);
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input_put_device(gunze->dev);
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kfree(gunze);
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}
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/*
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* gunze_connect() is the routine that is called when someone adds a
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* new serio device that supports Gunze protocol and registers it as
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* an input device.
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*/
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static int gunze_connect(struct serio *serio, struct serio_driver *drv)
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{
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struct gunze *gunze;
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struct input_dev *input_dev;
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int err;
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gunze = kzalloc_obj(*gunze);
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input_dev = input_allocate_device();
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if (!gunze || !input_dev) {
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err = -ENOMEM;
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goto fail1;
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}
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gunze->serio = serio;
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gunze->dev = input_dev;
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scnprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys);
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input_dev->name = "Gunze AHL-51S TouchScreen";
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input_dev->phys = gunze->phys;
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input_dev->id.bustype = BUS_RS232;
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input_dev->id.vendor = SERIO_GUNZE;
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input_dev->id.product = 0x0051;
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input_dev->id.version = 0x0100;
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input_dev->dev.parent = &serio->dev;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
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input_set_abs_params(input_dev, ABS_X, 24, 1000, 0, 0);
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input_set_abs_params(input_dev, ABS_Y, 24, 1000, 0, 0);
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serio_set_drvdata(serio, gunze);
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err = serio_open(serio, drv);
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if (err)
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goto fail2;
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err = input_register_device(gunze->dev);
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if (err)
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goto fail3;
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return 0;
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fail3: serio_close(serio);
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fail2: serio_set_drvdata(serio, NULL);
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fail1: input_free_device(input_dev);
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kfree(gunze);
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return err;
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}
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/*
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* The serio driver structure.
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*/
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static const struct serio_device_id gunze_serio_ids[] = {
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{
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.type = SERIO_RS232,
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.proto = SERIO_GUNZE,
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.id = SERIO_ANY,
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.extra = SERIO_ANY,
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},
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{ 0 }
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};
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MODULE_DEVICE_TABLE(serio, gunze_serio_ids);
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static struct serio_driver gunze_drv = {
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.driver = {
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.name = "gunze",
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},
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.description = DRIVER_DESC,
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.id_table = gunze_serio_ids,
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.interrupt = gunze_interrupt,
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.connect = gunze_connect,
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.disconnect = gunze_disconnect,
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};
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module_serio_driver(gunze_drv);
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