aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/input/keyboard/sunkbd.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/input/keyboard/sunkbd.c')
-rw-r--r--drivers/input/keyboard/sunkbd.c117
1 files changed, 62 insertions, 55 deletions
diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
index 4bae5d89348d..b15b6d8d4f83 100644
--- a/drivers/input/keyboard/sunkbd.c
+++ b/drivers/input/keyboard/sunkbd.c
@@ -76,13 +76,14 @@ static unsigned char sunkbd_keycode[128] = {
struct sunkbd {
unsigned char keycode[128];
- struct input_dev dev;
+ struct input_dev *dev;
struct serio *serio;
struct work_struct tq;
wait_queue_head_t wait;
char name[64];
char phys[32];
char type;
+ unsigned char enabled;
volatile s8 reset;
volatile s8 layout;
};
@@ -124,10 +125,13 @@ static irqreturn_t sunkbd_interrupt(struct serio *serio,
break;
default:
+ if (!sunkbd->enabled)
+ break;
+
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);
+ 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");
@@ -184,7 +188,7 @@ 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)
+ if (sunkbd->reset < 0)
return -1;
sunkbd->type = sunkbd->reset;
@@ -213,10 +217,17 @@ static void sunkbd_reinit(void *data)
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));
+ (!!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));
+}
+
+static void sunkbd_enable(struct sunkbd *sunkbd, int enable)
+{
+ serio_pause_rx(sunkbd->serio);
+ sunkbd->enabled = 1;
+ serio_continue_rx(sunkbd->serio);
}
/*
@@ -226,70 +237,64 @@ static void sunkbd_reinit(void *data)
static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
{
struct sunkbd *sunkbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
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 = kzalloc(sizeof(struct sunkbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!sunkbd || !input_dev)
+ goto fail;
sunkbd->serio = serio;
-
+ sunkbd->dev = input_dev;
+ init_waitqueue_head(&sunkbd->wait);
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;
+ snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys);
serio_set_drvdata(serio, sunkbd);
err = serio_open(serio, drv);
- if (err) {
- serio_set_drvdata(serio, NULL);
- kfree(sunkbd);
- return err;
- }
+ if (err)
+ goto fail;
if (sunkbd_initialize(sunkbd) < 0) {
serio_close(serio);
- serio_set_drvdata(serio, NULL);
- kfree(sunkbd);
- return -ENODEV;
+ goto fail;
}
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);
+ 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->cdev.dev = &serio->dev;
+ input_dev->private = sunkbd;
+ input_dev->event = sunkbd_event;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_LED) | BIT(EV_SND) | BIT(EV_REP);
+ input_dev->ledbit[0] = BIT(LED_CAPSL) | BIT(LED_COMPOSE) | BIT(LED_SCROLLL) | BIT(LED_NUML);
+ input_dev->sndbit[0] = BIT(SND_CLICK) | BIT(SND_BELL);
+
+ input_dev->keycode = sunkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode);
+ for (i = 0; i < 128; i++)
+ set_bit(sunkbd->keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+ sunkbd_enable(sunkbd, 1);
+ input_register_device(sunkbd->dev);
return 0;
+
+ fail: serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(sunkbd);
+ return err;
}
/*
@@ -299,7 +304,9 @@ static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
static void sunkbd_disconnect(struct serio *serio)
{
struct sunkbd *sunkbd = serio_get_drvdata(serio);
- input_unregister_device(&sunkbd->dev);
+
+ sunkbd_enable(sunkbd, 0);
+ input_unregister_device(sunkbd->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
kfree(sunkbd);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.