1 files changed, 353 insertions, 0 deletions

diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
new file mode 100644
index 000000000000..596964ceb96d
--- /dev/null
+++ b/drivers/input/keyboard/sunkbd.c
@@ -0,0 +1,353 @@
+/*
+ * $Id: sunkbd.c,v 1.14 2001/09/25 10:12:07 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Sun keyboard driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/init.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,  0,
+         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[128];
+        struct input_dev dev;
+        struct serio *serio;
+        struct work_struct tq;
+        wait_queue_head_t wait;
+        char name[64];
+        char phys[32];
+        char type;
+        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 pt_regs *regs)
+{
+        struct sunkbd* sunkbd = serio_get_drvdata(serio);
+
+        if (sunkbd->reset <= -1) {              /* If cp[i] is 0xff, sunkbd->reset will stay -1. */
+                sunkbd->reset = data;           /* The keyboard sends 0xff 0xff 0xID on powerup */
+                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:
+                        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->keycode[data & SUNKBD_KEY]) {
+                                input_regs(&sunkbd->dev, regs);
+                                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 = dev->private;
+
+        switch (type) {
+
+                case EV_LED:
+
+                        sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_SETLED);
+                        sunkbd->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:
+                                        sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
+                                        return 0;
+
+                                case SND_BELL:
+                                        sunkbd->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;
+        sunkbd->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;
+                sunkbd->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_reinit() sets leds and beeps to a state the computer remembers they
+ * were in.
+ */
+
+static void sunkbd_reinit(void *data)
+{
+        struct sunkbd *sunkbd = data;
+
+        wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
+
+        sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_SETLED);
+        sunkbd->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));
+        sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev.snd));
+        sunkbd->serio->write(sunkbd->serio, SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev.snd));
+}
+
+/*
+ * 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;
+        int i;
+        int err;
+
+        if (!(sunkbd = kmalloc(sizeof(struct sunkbd), GFP_KERNEL)))
+                return -ENOMEM;
+
+        memset(sunkbd, 0, sizeof(struct sunkbd));
+
+        init_input_dev(&sunkbd->dev);
+        init_waitqueue_head(&sunkbd->wait);
+
+        sunkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_SND) | BIT(EV_REP);
+        sunkbd->dev.ledbit[0] = BIT(LED_CAPSL) | BIT(LED_COMPOSE) | BIT(LED_SCROLLL) | BIT(LED_NUML);
+        sunkbd->dev.sndbit[0] = BIT(SND_CLICK) | BIT(SND_BELL);
+
+        sunkbd->serio = serio;
+
+        INIT_WORK(&sunkbd->tq, sunkbd_reinit, sunkbd);
+
+        sunkbd->dev.keycode = sunkbd->keycode;
+        sunkbd->dev.keycodesize = sizeof(unsigned char);
+        sunkbd->dev.keycodemax = ARRAY_SIZE(sunkbd_keycode);
+
+        sunkbd->dev.event = sunkbd_event;
+        sunkbd->dev.private = sunkbd;
+
+        serio_set_drvdata(serio, sunkbd);
+
+        err = serio_open(serio, drv);
+        if (err) {
+                serio_set_drvdata(serio, NULL);
+                kfree(sunkbd);
+                return err;
+        }
+
+        if (sunkbd_initialize(sunkbd) < 0) {
+                serio_close(serio);
+                serio_set_drvdata(serio, NULL);
+                kfree(sunkbd);
+                return -ENODEV;
+        }
+
+        sprintf(sunkbd->name, "Sun Type %d keyboard", sunkbd->type);
+
+        memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
+        for (i = 0; i < 128; i++)
+                set_bit(sunkbd->keycode[i], sunkbd->dev.keybit);
+        clear_bit(0, sunkbd->dev.keybit);
+
+        sprintf(sunkbd->phys, "%s/input0", serio->phys);
+
+        sunkbd->dev.name = sunkbd->name;
+        sunkbd->dev.phys = sunkbd->phys;
+        sunkbd->dev.id.bustype = BUS_RS232;
+        sunkbd->dev.id.vendor = SERIO_SUNKBD;
+        sunkbd->dev.id.product = sunkbd->type;
+        sunkbd->dev.id.version = 0x0100;
+        sunkbd->dev.dev = &serio->dev;
+
+        input_register_device(&sunkbd->dev);
+
+        printk(KERN_INFO "input: %s on %s\n", sunkbd->name, serio->phys);
+
+        return 0;
+}
+
+/*
+ * sunkbd_disconnect() unregisters and closes behind us.
+ */
+
+static void sunkbd_disconnect(struct serio *serio)
+{
+        struct sunkbd *sunkbd = serio_get_drvdata(serio);
+        input_unregister_device(&sunkbd->dev);
+        serio_close(serio);
+        serio_set_drvdata(serio, NULL);
+        kfree(sunkbd);
+}
+
+static 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,
+};
+
+/*
+ * The functions for insering/removing us as a module.
+ */
+
+static int __init sunkbd_init(void)
+{
+        serio_register_driver(&sunkbd_drv);
+        return 0;
+}
+
+static void __exit sunkbd_exit(void)
+{
+        serio_unregister_driver(&sunkbd_drv);
+}
+
+module_init(sunkbd_init);
+module_exit(sunkbd_exit);