^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) 1998-2001 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Driver for Amiga joysticks for Linux/m68k
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^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) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <asm/amigahw.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <asm/amigaints.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_DESCRIPTION("Driver for Amiga joysticks");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static int amijoy[2] = { 0, 1 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) module_param_array_named(map, amijoy, uint, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static int amijoy_used;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static DEFINE_MUTEX(amijoy_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static struct input_dev *amijoy_dev[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static irqreturn_t amijoy_interrupt(int irq, void *dummy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int i, data = 0, button = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) for (i = 0; i < 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (amijoy[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) switch (i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) input_report_key(amijoy_dev[i], BTN_TRIGGER, button);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) data = ~(data ^ (data << 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) input_sync(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) static int amijoy_open(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) err = mutex_lock_interruptible(&amijoy_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) err = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) amijoy_used++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) mutex_unlock(&amijoy_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static void amijoy_close(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) mutex_lock(&amijoy_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) if (!--amijoy_used)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) mutex_unlock(&amijoy_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int __init amijoy_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) if (!MACH_IS_AMIGA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (!amijoy[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) amijoy_dev[i] = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (!amijoy_dev[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) input_free_device(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) err = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) goto fail;
^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) amijoy_dev[i]->name = "Amiga joystick";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) amijoy_dev[i]->phys = amijoy_phys[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) amijoy_dev[i]->id.bustype = BUS_AMIGA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) amijoy_dev[i]->id.vendor = 0x0001;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) amijoy_dev[i]->id.product = 0x0003;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) amijoy_dev[i]->id.version = 0x0100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) amijoy_dev[i]->open = amijoy_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) amijoy_dev[i]->close = amijoy_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) for (j = 0; j < 2; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) input_set_abs_params(amijoy_dev[i], ABS_X + j,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) -1, 1, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) err = input_register_device(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) input_free_device(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) fail: while (--i >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (amijoy[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) input_unregister_device(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static void __exit amijoy_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) for (i = 0; i < 2; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) if (amijoy[i]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) input_unregister_device(amijoy_dev[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) module_init(amijoy_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) module_exit(amijoy_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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