^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 1999-2001 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Based on the work of:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * James Banks Matthew Dillon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * David Giller Nathan Laredo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Linus Torvalds Johan Myreen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Cliff Matthews Philip Blundell
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Russell King
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * Logitech Bus Mouse Driver for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <asm/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) MODULE_DESCRIPTION("Logitech busmouse driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define LOGIBM_BASE 0x23c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define LOGIBM_EXTENT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define LOGIBM_DATA_PORT LOGIBM_BASE + 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define LOGIBM_SIGNATURE_PORT LOGIBM_BASE + 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define LOGIBM_CONTROL_PORT LOGIBM_BASE + 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define LOGIBM_CONFIG_PORT LOGIBM_BASE + 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define LOGIBM_ENABLE_IRQ 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define LOGIBM_DISABLE_IRQ 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define LOGIBM_READ_X_LOW 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define LOGIBM_READ_X_HIGH 0xa0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define LOGIBM_READ_Y_LOW 0xc0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define LOGIBM_READ_Y_HIGH 0xe0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define LOGIBM_DEFAULT_MODE 0x90
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define LOGIBM_CONFIG_BYTE 0x91
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define LOGIBM_SIGNATURE_BYTE 0xa5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define LOGIBM_IRQ 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int logibm_irq = LOGIBM_IRQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) module_param_hw_named(irq, logibm_irq, uint, irq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) MODULE_PARM_DESC(irq, "IRQ number (5=default)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static struct input_dev *logibm_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static irqreturn_t logibm_interrupt(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) char dx, dy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned char buttons;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) outb(LOGIBM_READ_X_LOW, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) dx = (inb(LOGIBM_DATA_PORT) & 0xf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) outb(LOGIBM_READ_X_HIGH, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) dx |= (inb(LOGIBM_DATA_PORT) & 0xf) << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) outb(LOGIBM_READ_Y_LOW, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dy = (inb(LOGIBM_DATA_PORT) & 0xf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) outb(LOGIBM_READ_Y_HIGH, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) buttons = inb(LOGIBM_DATA_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) dy |= (buttons & 0xf) << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) buttons = ~buttons >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) input_report_rel(logibm_dev, REL_X, dx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) input_report_rel(logibm_dev, REL_Y, dy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) input_report_key(logibm_dev, BTN_RIGHT, buttons & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) input_report_key(logibm_dev, BTN_MIDDLE, buttons & 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) input_report_key(logibm_dev, BTN_LEFT, buttons & 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) input_sync(logibm_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static int logibm_open(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static void logibm_close(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) free_irq(logibm_irq, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static int __init logibm_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) outb(LOGIBM_CONFIG_BYTE, LOGIBM_CONFIG_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) outb(LOGIBM_SIGNATURE_BYTE, LOGIBM_SIGNATURE_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) udelay(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) printk(KERN_INFO "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) goto err_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) logibm_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (!logibm_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) printk(KERN_ERR "logibm.c: Not enough memory for input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) goto err_release_region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) logibm_dev->name = "Logitech bus mouse";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) logibm_dev->phys = "isa023c/input0";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) logibm_dev->id.bustype = BUS_ISA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) logibm_dev->id.vendor = 0x0003;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) logibm_dev->id.product = 0x0001;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) logibm_dev->id.version = 0x0100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) logibm_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) logibm_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) logibm_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) logibm_dev->open = logibm_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) logibm_dev->close = logibm_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) err = input_register_device(logibm_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) goto err_free_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) err_free_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) input_free_device(logibm_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) err_release_region:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) release_region(LOGIBM_BASE, LOGIBM_EXTENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static void __exit logibm_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) input_unregister_device(logibm_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) release_region(LOGIBM_BASE, LOGIBM_EXTENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) module_init(logibm_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) module_exit(logibm_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags