Input: logibm - remove driver

Bus mice use specialized bus interface implemented via an ISA add-in
cards. They were superseded by PS/2 and later USB.

Kconfig entry for the Logitech bus mice states that they "are rather
rare these days". This statement was true in 2002 and is no less true
in 2024.

Remove the driver.

Link: https://patch.msgid.link/20240808172733.1194442-3-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 932df58c86dd927b6985ed1384dfc12ec79e8223..04d56f40ecb631dee369aadffe55c3dc7be069c6 100644 (file)
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -290,16 +290,6 @@ config MOUSE_ELAN_I2C_SMBUS
 
           If unsure, say Y.
 
-config MOUSE_LOGIBM
-       tristate "Logitech busmouse"
-       depends on ISA
-       help
-         Say Y here if you have a Logitech busmouse.
-         They are rather rare these days.
-
-         To compile this driver as a module, choose M here: the
-         module will be called logibm.
-
 config MOUSE_PC110PAD
        tristate "IBM PC110 touchpad"
        depends on ISA

diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index b88a1b2cae148a0c8d9e8139202c2a431eb439b8..16d1cdf3182fef121224564cc3ed4156de839e44 100644 (file)
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_MOUSE_BCM5974)           += bcm5974.o
 obj-$(CONFIG_MOUSE_CYAPA)              += cyapatp.o
 obj-$(CONFIG_MOUSE_ELAN_I2C)           += elan_i2c.o
 obj-$(CONFIG_MOUSE_GPIO)               += gpio_mouse.o
-obj-$(CONFIG_MOUSE_LOGIBM)             += logibm.o
 obj-$(CONFIG_MOUSE_MAPLE)              += maplemouse.o
 obj-$(CONFIG_MOUSE_PC110PAD)           += pc110pad.o
 obj-$(CONFIG_MOUSE_PS2)                        += psmouse.o

diff --git a/drivers/input/mouse/logibm.c b/drivers/input/mouse/logibm.c
deleted file mode 100644 (file)
index 0aab63d..0000000
--- a/drivers/input/mouse/logibm.c
+++ /dev/null
@@ -1,166 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  Copyright (c) 1999-2001 Vojtech Pavlik
- *
- *  Based on the work of:
- *     James Banks             Matthew Dillon
- *     David Giller            Nathan Laredo
- *     Linus Torvalds          Johan Myreen
- *     Cliff Matthews          Philip Blundell
- *     Russell King
- */
-
-/*
- * Logitech Bus Mouse Driver for Linux
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
-MODULE_DESCRIPTION("Logitech busmouse driver");
-MODULE_LICENSE("GPL");
-
-#define        LOGIBM_BASE             0x23c
-#define        LOGIBM_EXTENT           4
-
-#define        LOGIBM_DATA_PORT        LOGIBM_BASE + 0
-#define        LOGIBM_SIGNATURE_PORT   LOGIBM_BASE + 1
-#define        LOGIBM_CONTROL_PORT     LOGIBM_BASE + 2
-#define        LOGIBM_CONFIG_PORT      LOGIBM_BASE + 3
-
-#define        LOGIBM_ENABLE_IRQ       0x00
-#define        LOGIBM_DISABLE_IRQ      0x10
-#define        LOGIBM_READ_X_LOW       0x80
-#define        LOGIBM_READ_X_HIGH      0xa0
-#define        LOGIBM_READ_Y_LOW       0xc0
-#define        LOGIBM_READ_Y_HIGH      0xe0
-
-#define LOGIBM_DEFAULT_MODE    0x90
-#define LOGIBM_CONFIG_BYTE     0x91
-#define LOGIBM_SIGNATURE_BYTE  0xa5
-
-#define LOGIBM_IRQ             5
-
-static int logibm_irq = LOGIBM_IRQ;
-module_param_hw_named(irq, logibm_irq, uint, irq, 0);
-MODULE_PARM_DESC(irq, "IRQ number (5=default)");
-
-static struct input_dev *logibm_dev;
-
-static irqreturn_t logibm_interrupt(int irq, void *dev_id)
-{
-       char dx, dy;
-       unsigned char buttons;
-
-       outb(LOGIBM_READ_X_LOW, LOGIBM_CONTROL_PORT);
-       dx = (inb(LOGIBM_DATA_PORT) & 0xf);
-       outb(LOGIBM_READ_X_HIGH, LOGIBM_CONTROL_PORT);
-       dx |= (inb(LOGIBM_DATA_PORT) & 0xf) << 4;
-       outb(LOGIBM_READ_Y_LOW, LOGIBM_CONTROL_PORT);
-       dy = (inb(LOGIBM_DATA_PORT) & 0xf);
-       outb(LOGIBM_READ_Y_HIGH, LOGIBM_CONTROL_PORT);
-       buttons = inb(LOGIBM_DATA_PORT);
-       dy |= (buttons & 0xf) << 4;
-       buttons = ~buttons >> 5;
-
-       input_report_rel(logibm_dev, REL_X, dx);
-       input_report_rel(logibm_dev, REL_Y, dy);
-       input_report_key(logibm_dev, BTN_RIGHT,  buttons & 1);
-       input_report_key(logibm_dev, BTN_MIDDLE, buttons & 2);
-       input_report_key(logibm_dev, BTN_LEFT,   buttons & 4);
-       input_sync(logibm_dev);
-
-       outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
-       return IRQ_HANDLED;
-}
-
-static int logibm_open(struct input_dev *dev)
-{
-       if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
-               printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
-               return -EBUSY;
-       }
-       outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
-       return 0;
-}
-
-static void logibm_close(struct input_dev *dev)
-{
-       outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
-       free_irq(logibm_irq, NULL);
-}
-
-static int __init logibm_init(void)
-{
-       int err;
-
-       if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
-               printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
-               return -EBUSY;
-       }
-
-       outb(LOGIBM_CONFIG_BYTE, LOGIBM_CONFIG_PORT);
-       outb(LOGIBM_SIGNATURE_BYTE, LOGIBM_SIGNATURE_PORT);
-       udelay(100);
-
-       if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
-               printk(KERN_INFO "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
-               err = -ENODEV;
-               goto err_release_region;
-       }
-
-       outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
-       outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
-
-       logibm_dev = input_allocate_device();
-       if (!logibm_dev) {
-               printk(KERN_ERR "logibm.c: Not enough memory for input device\n");
-               err = -ENOMEM;
-               goto err_release_region;
-       }
-
-       logibm_dev->name = "Logitech bus mouse";
-       logibm_dev->phys = "isa023c/input0";
-       logibm_dev->id.bustype = BUS_ISA;
-       logibm_dev->id.vendor  = 0x0003;
-       logibm_dev->id.product = 0x0001;
-       logibm_dev->id.version = 0x0100;
-
-       logibm_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
-       logibm_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
-               BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
-       logibm_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
-
-       logibm_dev->open  = logibm_open;
-       logibm_dev->close = logibm_close;
-
-       err = input_register_device(logibm_dev);
-       if (err)
-               goto err_free_dev;
-
-       return 0;
-
- err_free_dev:
-       input_free_device(logibm_dev);
- err_release_region:
-       release_region(LOGIBM_BASE, LOGIBM_EXTENT);
-
-       return err;
-}
-
-static void __exit logibm_exit(void)
-{
-       input_unregister_device(logibm_dev);
-       release_region(LOGIBM_BASE, LOGIBM_EXTENT);
-}
-
-module_init(logibm_init);
-module_exit(logibm_exit);