[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/input/keyboard/sunkbd.c b/src/kernel/linux/v4.14/drivers/input/keyboard/sunkbd.c
new file mode 100644
index 0000000..c95707e
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/input/keyboard/sunkbd.c
@@ -0,0 +1,371 @@
+/*
+ * 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/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:
+ 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_reinit() sets leds and beeps to a state the computer remembers they
+ * were in.
+ */
+
+static void sunkbd_reinit(struct work_struct *work)
+{
+ struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq);
+
+ wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
+
+ 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));
+}
+
+static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
+{
+ serio_pause_rx(sunkbd->serio);
+ sunkbd->enabled = enable;
+ serio_continue_rx(sunkbd->serio);
+}
+
+/*
+ * 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);