Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Vojtech Pavlik | 1202 | 65.83% | 8 | 23.53% |
Dmitry Torokhov | 576 | 31.54% | 14 | 41.18% |
Andrew Morton | 15 | 0.82% | 1 | 2.94% |
Jiri Slaby | 10 | 0.55% | 1 | 2.94% |
Ingo Molnar | 8 | 0.44% | 1 | 2.94% |
Alexey Dobriyan | 3 | 0.16% | 1 | 2.94% |
Ricky Beam | 2 | 0.11% | 1 | 2.94% |
Thomas Gleixner | 2 | 0.11% | 1 | 2.94% |
Axel Lin | 2 | 0.11% | 1 | 2.94% |
Al Viro | 2 | 0.11% | 1 | 2.94% |
Fabrice Knevez | 1 | 0.05% | 1 | 2.94% |
Arvind Yadav | 1 | 0.05% | 1 | 2.94% |
David Howells | 1 | 0.05% | 1 | 2.94% |
Adrian Bunk | 1 | 0.05% | 1 | 2.94% |
Total | 1826 | 34 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) 1999-2001 Vojtech Pavlik */ /* * Sun keyboard driver for Linux */ /* */ #include <linux/delay.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/input.h> #include <linux/serio.h> #include <linux/workqueue.h> #define DRIVER_DESC "Sun keyboard driver" MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); static unsigned char sunkbd_keycode[128] = { 0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64,112, 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 14,110,113, 98, 55, 116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27,111,127, 71, 72, 73, 74,134,135,107, 0, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136, 104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101, 79, 80, 81, 0, 0, 0,138, 58,125, 57,126,109, 86, 78 }; #define SUNKBD_CMD_RESET 0x1 #define SUNKBD_CMD_BELLON 0x2 #define SUNKBD_CMD_BELLOFF 0x3 #define SUNKBD_CMD_CLICK 0xa #define SUNKBD_CMD_NOCLICK 0xb #define SUNKBD_CMD_SETLED 0xe #define SUNKBD_CMD_LAYOUT 0xf #define SUNKBD_RET_RESET 0xff #define SUNKBD_RET_ALLUP 0x7f #define SUNKBD_RET_LAYOUT 0xfe #define SUNKBD_LAYOUT_5_MASK 0x20 #define SUNKBD_RELEASE 0x80 #define SUNKBD_KEY 0x7f /* * Per-keyboard data. */ struct sunkbd { unsigned char keycode[ARRAY_SIZE(sunkbd_keycode)]; struct input_dev *dev; struct serio *serio; struct work_struct tq; wait_queue_head_t wait; char name[64]; char phys[32]; char type; bool enabled; volatile s8 reset; volatile s8 layout; }; /* * sunkbd_interrupt() is called by the low level driver when a character * is received. */ static irqreturn_t sunkbd_interrupt(struct serio *serio, unsigned char data, unsigned int flags) { struct sunkbd *sunkbd = serio_get_drvdata(serio); if (sunkbd->reset <= -1) { /* * If cp[i] is 0xff, sunkbd->reset will stay -1. * The keyboard sends 0xff 0xff 0xID on powerup. */ sunkbd->reset = data; wake_up_interruptible(&sunkbd->wait); goto out; } if (sunkbd->layout == -1) { sunkbd->layout = data; wake_up_interruptible(&sunkbd->wait); goto out; } switch (data) { case SUNKBD_RET_RESET: if (sunkbd->enabled) schedule_work(&sunkbd->tq); sunkbd->reset = -1; break; case SUNKBD_RET_LAYOUT: sunkbd->layout = -1; break; case SUNKBD_RET_ALLUP: /* All keys released */ break; default: if (!sunkbd->enabled) break; if (sunkbd->keycode[data & SUNKBD_KEY]) { input_report_key(sunkbd->dev, sunkbd->keycode[data & SUNKBD_KEY], !(data & SUNKBD_RELEASE)); input_sync(sunkbd->dev); } else { printk(KERN_WARNING "sunkbd.c: Unknown key (scancode %#x) %s.\n", data & SUNKBD_KEY, data & SUNKBD_RELEASE ? "released" : "pressed"); } } out: return IRQ_HANDLED; } /* * sunkbd_event() handles events from the input module. */ static int sunkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) { struct sunkbd *sunkbd = input_get_drvdata(dev); switch (type) { case EV_LED: serio_write(sunkbd->serio, SUNKBD_CMD_SETLED); serio_write(sunkbd->serio, (!!test_bit(LED_CAPSL, dev->led) << 3) | (!!test_bit(LED_SCROLLL, dev->led) << 2) | (!!test_bit(LED_COMPOSE, dev->led) << 1) | !!test_bit(LED_NUML, dev->led)); return 0; case EV_SND: switch (code) { case SND_CLICK: serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value); return 0; case SND_BELL: serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value); return 0; } break; } return -1; } /* * sunkbd_initialize() checks for a Sun keyboard attached, and determines * its type. */ static int sunkbd_initialize(struct sunkbd *sunkbd) { sunkbd->reset = -2; serio_write(sunkbd->serio, SUNKBD_CMD_RESET); wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ); if (sunkbd->reset < 0) return -1; sunkbd->type = sunkbd->reset; if (sunkbd->type == 4) { /* Type 4 keyboard */ sunkbd->layout = -2; serio_write(sunkbd->serio, SUNKBD_CMD_LAYOUT); wait_event_interruptible_timeout(sunkbd->wait, sunkbd->layout >= 0, HZ / 4); if (sunkbd->layout < 0) return -1; if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK) sunkbd->type = 5; } return 0; } /* * sunkbd_set_leds_beeps() sets leds and beeps to a state the computer remembers * they were in. */ static void sunkbd_set_leds_beeps(struct sunkbd *sunkbd) { serio_write(sunkbd->serio, SUNKBD_CMD_SETLED); serio_write(sunkbd->serio, (!!test_bit(LED_CAPSL, sunkbd->dev->led) << 3) | (!!test_bit(LED_SCROLLL, sunkbd->dev->led) << 2) | (!!test_bit(LED_COMPOSE, sunkbd->dev->led) << 1) | !!test_bit(LED_NUML, sunkbd->dev->led)); serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev->snd)); serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev->snd)); } /* * sunkbd_reinit() wait for the keyboard reset to complete and restores state * of leds and beeps. */ static void sunkbd_reinit(struct work_struct *work) { struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq); /* * It is OK that we check sunkbd->enabled without pausing serio, * as we only want to catch true->false transition that will * happen once and we will be woken up for it. */ wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0 || !sunkbd->enabled, HZ); if (sunkbd->reset >= 0 && sunkbd->enabled) sunkbd_set_leds_beeps(sunkbd); } static void sunkbd_enable(struct sunkbd *sunkbd, bool enable) { serio_pause_rx(sunkbd->serio); sunkbd->enabled = enable; serio_continue_rx(sunkbd->serio); if (!enable) { wake_up_interruptible(&sunkbd->wait); cancel_work_sync(&sunkbd->tq); } } /* * sunkbd_connect() probes for a Sun keyboard and fills the necessary * structures. */ static int sunkbd_connect(struct serio *serio, struct serio_driver *drv) { struct sunkbd *sunkbd; struct input_dev *input_dev; int err = -ENOMEM; int i; sunkbd = kzalloc(sizeof(struct sunkbd), GFP_KERNEL); input_dev = input_allocate_device(); if (!sunkbd || !input_dev) goto fail1; sunkbd->serio = serio; sunkbd->dev = input_dev; init_waitqueue_head(&sunkbd->wait); INIT_WORK(&sunkbd->tq, sunkbd_reinit); snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys); serio_set_drvdata(serio, sunkbd); err = serio_open(serio, drv); if (err) goto fail2; if (sunkbd_initialize(sunkbd) < 0) { err = -ENODEV; goto fail3; } snprintf(sunkbd->name, sizeof(sunkbd->name), "Sun Type %d keyboard", sunkbd->type); memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode)); input_dev->name = sunkbd->name; input_dev->phys = sunkbd->phys; input_dev->id.bustype = BUS_RS232; input_dev->id.vendor = SERIO_SUNKBD; input_dev->id.product = sunkbd->type; input_dev->id.version = 0x0100; input_dev->dev.parent = &serio->dev; input_set_drvdata(input_dev, sunkbd); input_dev->event = sunkbd_event; input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) | BIT_MASK(EV_SND) | BIT_MASK(EV_REP); input_dev->ledbit[0] = BIT_MASK(LED_CAPSL) | BIT_MASK(LED_COMPOSE) | BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_NUML); input_dev->sndbit[0] = BIT_MASK(SND_CLICK) | BIT_MASK(SND_BELL); input_dev->keycode = sunkbd->keycode; input_dev->keycodesize = sizeof(unsigned char); input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode); for (i = 0; i < ARRAY_SIZE(sunkbd_keycode); i++) __set_bit(sunkbd->keycode[i], input_dev->keybit); __clear_bit(KEY_RESERVED, input_dev->keybit); sunkbd_enable(sunkbd, true); err = input_register_device(sunkbd->dev); if (err) goto fail4; return 0; fail4: sunkbd_enable(sunkbd, false); fail3: serio_close(serio); fail2: serio_set_drvdata(serio, NULL); fail1: input_free_device(input_dev); kfree(sunkbd); return err; } /* * sunkbd_disconnect() unregisters and closes behind us. */ static void sunkbd_disconnect(struct serio *serio) { struct sunkbd *sunkbd = serio_get_drvdata(serio); sunkbd_enable(sunkbd, false); input_unregister_device(sunkbd->dev); serio_close(serio); serio_set_drvdata(serio, NULL); kfree(sunkbd); } static const struct serio_device_id sunkbd_serio_ids[] = { { .type = SERIO_RS232, .proto = SERIO_SUNKBD, .id = SERIO_ANY, .extra = SERIO_ANY, }, { .type = SERIO_RS232, .proto = SERIO_UNKNOWN, /* sunkbd does probe */ .id = SERIO_ANY, .extra = SERIO_ANY, }, { 0 } }; MODULE_DEVICE_TABLE(serio, sunkbd_serio_ids); static struct serio_driver sunkbd_drv = { .driver = { .name = "sunkbd", }, .description = DRIVER_DESC, .id_table = sunkbd_serio_ids, .interrupt = sunkbd_interrupt, .connect = sunkbd_connect, .disconnect = sunkbd_disconnect, }; module_serio_driver(sunkbd_drv);
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