#include <linux/serio.h>
#include <linux/workqueue.h>
#include <linux/libps2.h>
+#include <linux/mutex.h>
#define DRIVER_DESC "AT and PS/2 keyboard driver"
#define ATKBD_SPECIAL 248
+#define ATKBD_LED_EVENT_BIT 0
+#define ATKBD_REP_EVENT_BIT 1
+
static struct {
unsigned char keycode;
unsigned char set2;
struct atkbd {
- struct ps2dev ps2dev;
+ struct ps2dev ps2dev;
+ struct input_dev *dev;
/* Written only during init */
char name[64];
char phys[32];
- struct input_dev dev;
unsigned short id;
unsigned char keycode[512];
unsigned char resend;
unsigned char release;
unsigned char bat_xl;
+ unsigned char err_xl;
unsigned int last;
unsigned long time;
+
+ struct work_struct event_work;
+ struct mutex event_mutex;
+ unsigned long event_mask;
};
static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
#define ATKBD_DEFINE_ATTR(_name) \
static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
-static ssize_t atkbd_do_show_##_name(struct device *d, char *b) \
+static ssize_t atkbd_do_show_##_name(struct device *d, struct device_attribute *attr, char *b) \
{ \
return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
} \
-static ssize_t atkbd_do_set_##_name(struct device *d, const char *b, size_t s) \
+static ssize_t atkbd_do_set_##_name(struct device *d, struct device_attribute *attr, const char *b, size_t s) \
{ \
return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
} \
-static struct device_attribute atkbd_attr_##_name = \
+static struct device_attribute atkbd_attr_##_name = \
__ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
ATKBD_DEFINE_ATTR(extra);
if (!atkbd->enabled)
goto out;
- input_event(&atkbd->dev, EV_MSC, MSC_RAW, code);
+ input_event(atkbd->dev, EV_MSC, MSC_RAW, code);
if (atkbd->translated) {
if (atkbd->emul ||
- !(code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1 ||
- code == ATKBD_RET_HANGUEL || code == ATKBD_RET_HANJA ||
- code == ATKBD_RET_ERR ||
- (code == ATKBD_RET_BAT && !atkbd->bat_xl))) {
+ (code != ATKBD_RET_EMUL0 && code != ATKBD_RET_EMUL1 &&
+ code != ATKBD_RET_HANGUEL && code != ATKBD_RET_HANJA &&
+ (code != ATKBD_RET_ERR || atkbd->err_xl) &&
+ (code != ATKBD_RET_BAT || atkbd->bat_xl))) {
atkbd->release = code >> 7;
code &= 0x7f;
}
- if (!atkbd->emul &&
- (code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
- atkbd->bat_xl = !atkbd->release;
+ if (!atkbd->emul) {
+ if ((code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
+ atkbd->bat_xl = !(data >> 7);
+ if ((code & 0x7f) == (ATKBD_RET_ERR & 0x7f))
+ atkbd->err_xl = !(data >> 7);
+ }
}
switch (code) {
case ATKBD_RET_BAT:
atkbd->enabled = 0;
- serio_rescan(atkbd->ps2dev.serio);
+ serio_reconnect(atkbd->ps2dev.serio);
goto out;
case ATKBD_RET_EMUL0:
atkbd->emul = 1;
atkbd->release = 1;
goto out;
case ATKBD_RET_HANGUEL:
- atkbd_report_key(&atkbd->dev, regs, KEY_HANGUEL, 3);
+ atkbd_report_key(atkbd->dev, regs, KEY_HANGUEL, 3);
goto out;
case ATKBD_RET_HANJA:
- atkbd_report_key(&atkbd->dev, regs, KEY_HANJA, 3);
+ atkbd_report_key(atkbd->dev, regs, KEY_HANJA, 3);
goto out;
case ATKBD_RET_ERR:
- printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
+// printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
goto out;
}
}
if (atkbd->keycode[code] != ATKBD_KEY_NULL)
- input_event(&atkbd->dev, EV_MSC, MSC_SCAN, code);
+ input_event(atkbd->dev, EV_MSC, MSC_SCAN, code);
switch (atkbd->keycode[code]) {
case ATKBD_KEY_NULL:
break;
case ATKBD_KEY_UNKNOWN:
if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) {
+#if 0
+/* Quite a few key switchers and other tools trigger this and it confuses
+ people who can do nothing about it */
printk(KERN_WARNING "atkbd.c: Spurious %s on %s. Some program, "
"like XFree86, might be trying access hardware directly.\n",
data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
+#endif
} else {
printk(KERN_WARNING "atkbd.c: Unknown key %s "
"(%s set %d, code %#x on %s).\n",
"to make it known.\n",
code & 0x80 ? "e0" : "", code & 0x7f);
}
- input_sync(&atkbd->dev);
+ input_sync(atkbd->dev);
break;
case ATKBD_SCR_1:
scroll = 1 - atkbd->release * 2;
break;
default:
value = atkbd->release ? 0 :
- (1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev.key)));
+ (1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev->key)));
- switch (value) { /* Workaround Toshiba laptop multiple keypress */
+ switch (value) { /* Workaround Toshiba laptop multiple keypress */
case 0:
atkbd->last = 0;
break;
case 1:
atkbd->last = code;
- atkbd->time = jiffies + msecs_to_jiffies(atkbd->dev.rep[REP_DELAY]) / 2;
+ atkbd->time = jiffies + msecs_to_jiffies(atkbd->dev->rep[REP_DELAY]) / 2;
break;
case 2:
if (!time_after(jiffies, atkbd->time) && atkbd->last == code)
break;
}
- atkbd_report_key(&atkbd->dev, regs, atkbd->keycode[code], value);
+ atkbd_report_key(atkbd->dev, regs, atkbd->keycode[code], value);
}
if (atkbd->scroll) {
- input_regs(&atkbd->dev, regs);
+ input_regs(atkbd->dev, regs);
if (click != -1)
- input_report_key(&atkbd->dev, BTN_MIDDLE, click);
- input_report_rel(&atkbd->dev, REL_WHEEL, scroll);
- input_report_rel(&atkbd->dev, REL_HWHEEL, hscroll);
- input_sync(&atkbd->dev);
+ input_report_key(atkbd->dev, BTN_MIDDLE, click);
+ input_report_rel(atkbd->dev, REL_WHEEL, scroll);
+ input_report_rel(atkbd->dev, REL_HWHEEL, hscroll);
+ input_sync(atkbd->dev);
}
atkbd->release = 0;
}
/*
- * Event callback from the input module. Events that change the state of
- * the hardware are processed here.
+ * atkbd_event_work() is used to complete processing of events that
+ * can not be processed by input_event() which is often called from
+ * interrupt context.
*/
-static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+static void atkbd_event_work(void *data)
{
- struct atkbd *atkbd = dev->private;
const short period[32] =
{ 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
const short delay[4] =
{ 250, 500, 750, 1000 };
+
+ struct atkbd *atkbd = data;
+ struct input_dev *dev = atkbd->dev;
unsigned char param[2];
int i, j;
+ mutex_lock(&atkbd->event_mutex);
+
+ if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) {
+ param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
+ | (test_bit(LED_NUML, dev->led) ? 2 : 0)
+ | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
+ ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS);
+
+ if (atkbd->extra) {
+ param[0] = 0;
+ param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
+ | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
+ | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
+ | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
+ | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
+ ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS);
+ }
+ }
+
+ if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) {
+ i = j = 0;
+ while (i < 31 && period[i] < dev->rep[REP_PERIOD])
+ i++;
+ while (j < 3 && delay[j] < dev->rep[REP_DELAY])
+ j++;
+ dev->rep[REP_PERIOD] = period[i];
+ dev->rep[REP_DELAY] = delay[j];
+ param[0] = i | (j << 5);
+ ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP);
+ }
+
+ mutex_unlock(&atkbd->event_mutex);
+}
+
+/*
+ * Event callback from the input module. Events that change the state of
+ * the hardware are processed here. If action can not be performed in
+ * interrupt context it is offloaded to atkbd_event_work.
+ */
+
+static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct atkbd *atkbd = dev->private;
+
if (!atkbd->write)
return -1;
switch (type) {
case EV_LED:
-
- param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
- | (test_bit(LED_NUML, dev->led) ? 2 : 0)
- | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
- ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS);
-
- if (atkbd->extra) {
- param[0] = 0;
- param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
- | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
- | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
- | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
- | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
- ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS);
- }
-
+ set_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask);
+ wmb();
+ schedule_work(&atkbd->event_work);
return 0;
-
case EV_REP:
- if (atkbd->softrepeat) return 0;
-
- i = j = 0;
- while (i < 31 && period[i] < dev->rep[REP_PERIOD])
- i++;
- while (j < 3 && delay[j] < dev->rep[REP_DELAY])
- j++;
- dev->rep[REP_PERIOD] = period[i];
- dev->rep[REP_DELAY] = delay[j];
- param[0] = i | (j << 5);
- ps2_schedule_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP);
+ if (!atkbd->softrepeat) {
+ set_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask);
+ wmb();
+ schedule_work(&atkbd->event_work);
+ }
return 0;
}
device_remove_file(&serio->dev, &atkbd_attr_softrepeat);
device_remove_file(&serio->dev, &atkbd_attr_softraw);
- input_unregister_device(&atkbd->dev);
+ input_unregister_device(atkbd->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
kfree(atkbd);
/*
- * atkbd_set_device_attrs() initializes keyboard's keycode table
+ * atkbd_set_keycode_table() initializes keyboard's keycode table
* according to the selected scancode set
*/
static void atkbd_set_device_attrs(struct atkbd *atkbd)
{
+ struct input_dev *input_dev = atkbd->dev;
int i;
- memset(&atkbd->dev, 0, sizeof(struct input_dev));
+ if (atkbd->extra)
+ sprintf(atkbd->name, "AT Set 2 Extra keyboard");
+ else
+ sprintf(atkbd->name, "AT %s Set %d keyboard",
+ atkbd->translated ? "Translated" : "Raw", atkbd->set);
- init_input_dev(&atkbd->dev);
+ sprintf(atkbd->phys, "%s/input0", atkbd->ps2dev.serio->phys);
- atkbd->dev.name = atkbd->name;
- atkbd->dev.phys = atkbd->phys;
- atkbd->dev.id.bustype = BUS_I8042;
- atkbd->dev.id.vendor = 0x0001;
- atkbd->dev.id.product = atkbd->translated ? 1 : atkbd->set;
- atkbd->dev.id.version = atkbd->id;
- atkbd->dev.event = atkbd_event;
- atkbd->dev.private = atkbd;
- atkbd->dev.dev = &atkbd->ps2dev.serio->dev;
+ input_dev->name = atkbd->name;
+ input_dev->phys = atkbd->phys;
+ input_dev->id.bustype = BUS_I8042;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
+ input_dev->id.version = atkbd->id;
+ input_dev->event = atkbd_event;
+ input_dev->private = atkbd;
+ input_dev->cdev.dev = &atkbd->ps2dev.serio->dev;
- atkbd->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC);
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC);
if (atkbd->write) {
- atkbd->dev.evbit[0] |= BIT(EV_LED);
- atkbd->dev.ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
+ input_dev->evbit[0] |= BIT(EV_LED);
+ input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL);
}
if (atkbd->extra)
- atkbd->dev.ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) |
+ input_dev->ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) |
BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC);
if (!atkbd->softrepeat) {
- atkbd->dev.rep[REP_DELAY] = 250;
- atkbd->dev.rep[REP_PERIOD] = 33;
+ input_dev->rep[REP_DELAY] = 250;
+ input_dev->rep[REP_PERIOD] = 33;
}
- atkbd->dev.mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN);
+ input_dev->mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN);
if (atkbd->scroll) {
- atkbd->dev.evbit[0] |= BIT(EV_REL);
- atkbd->dev.relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL);
- set_bit(BTN_MIDDLE, atkbd->dev.keybit);
+ input_dev->evbit[0] |= BIT(EV_REL);
+ input_dev->relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL);
+ set_bit(BTN_MIDDLE, input_dev->keybit);
}
- atkbd->dev.keycode = atkbd->keycode;
- atkbd->dev.keycodesize = sizeof(unsigned char);
- atkbd->dev.keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
+ input_dev->keycode = atkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
for (i = 0; i < 512; i++)
if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
- set_bit(atkbd->keycode[i], atkbd->dev.keybit);
+ set_bit(atkbd->keycode[i], input_dev->keybit);
}
/*
static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
{
struct atkbd *atkbd;
- int err;
+ struct input_dev *dev;
+ int err = -ENOMEM;
- if (!(atkbd = kmalloc(sizeof(struct atkbd), GFP_KERNEL)))
- return - ENOMEM;
-
- memset(atkbd, 0, sizeof(struct atkbd));
+ atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
+ dev = input_allocate_device();
+ if (!atkbd || !dev)
+ goto fail;
+ atkbd->dev = dev;
ps2_init(&atkbd->ps2dev, serio);
+ INIT_WORK(&atkbd->event_work, atkbd_event_work, atkbd);
+ mutex_init(&atkbd->event_mutex);
switch (serio->id.type) {
atkbd->softrepeat = atkbd_softrepeat;
atkbd->scroll = atkbd_scroll;
- if (!atkbd->write)
- atkbd->softrepeat = 1;
-
if (atkbd->softrepeat)
atkbd->softraw = 1;
serio_set_drvdata(serio, atkbd);
err = serio_open(serio, drv);
- if (err) {
- serio_set_drvdata(serio, NULL);
- kfree(atkbd);
- return err;
- }
+ if (err)
+ goto fail;
if (atkbd->write) {
if (atkbd_probe(atkbd)) {
serio_close(serio);
- serio_set_drvdata(serio, NULL);
- kfree(atkbd);
- return -ENODEV;
+ err = -ENODEV;
+ goto fail;
}
atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
atkbd->id = 0xab00;
}
- if (atkbd->extra)
- sprintf(atkbd->name, "AT Set 2 Extra keyboard");
- else
- sprintf(atkbd->name, "AT %s Set %d keyboard",
- atkbd->translated ? "Translated" : "Raw", atkbd->set);
-
- sprintf(atkbd->phys, "%s/input0", serio->phys);
-
atkbd_set_keycode_table(atkbd);
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
-
device_create_file(&serio->dev, &atkbd_attr_extra);
device_create_file(&serio->dev, &atkbd_attr_scroll);
device_create_file(&serio->dev, &atkbd_attr_set);
atkbd_enable(atkbd);
- printk(KERN_INFO "input: %s on %s\n", atkbd->name, serio->phys);
+ input_register_device(atkbd->dev);
return 0;
+
+ fail: serio_set_drvdata(serio, NULL);
+ input_free_device(dev);
+ kfree(atkbd);
+ return err;
}
/*
atkbd_disable(atkbd);
if (atkbd->write) {
- param[0] = (test_bit(LED_SCROLLL, atkbd->dev.led) ? 1 : 0)
- | (test_bit(LED_NUML, atkbd->dev.led) ? 2 : 0)
- | (test_bit(LED_CAPSL, atkbd->dev.led) ? 4 : 0);
+ param[0] = (test_bit(LED_SCROLLL, atkbd->dev->led) ? 1 : 0)
+ | (test_bit(LED_NUML, atkbd->dev->led) ? 2 : 0)
+ | (test_bit(LED_CAPSL, atkbd->dev->led) ? 4 : 0);
if (atkbd_probe(atkbd))
return -1;
static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
{
+ struct input_dev *new_dev;
unsigned long value;
char *rest;
return -EINVAL;
if (atkbd->extra != value) {
- /* unregister device as it's properties will change */
- input_unregister_device(&atkbd->dev);
+ /*
+ * Since device's properties will change we need to
+ * unregister old device. But allocate new one first
+ * to make sure we have it.
+ */
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+ input_unregister_device(atkbd->dev);
+ atkbd->dev = new_dev;
atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
atkbd_activate(atkbd);
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
+ input_register_device(atkbd->dev);
}
return count;
}
static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
{
+ struct input_dev *new_dev;
unsigned long value;
char *rest;
return -EINVAL;
if (atkbd->scroll != value) {
- /* unregister device as it's properties will change */
- input_unregister_device(&atkbd->dev);
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+ input_unregister_device(atkbd->dev);
+ atkbd->dev = new_dev;
atkbd->scroll = value;
atkbd_set_keycode_table(atkbd);
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
+ input_register_device(atkbd->dev);
}
return count;
}
static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
{
+ struct input_dev *new_dev;
unsigned long value;
char *rest;
return -EINVAL;
if (atkbd->set != value) {
- /* unregister device as it's properties will change */
- input_unregister_device(&atkbd->dev);
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+ input_unregister_device(atkbd->dev);
+ atkbd->dev = new_dev;
atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
atkbd_activate(atkbd);
atkbd_set_keycode_table(atkbd);
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
+ input_register_device(atkbd->dev);
}
return count;
}
static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
{
+ struct input_dev *new_dev;
unsigned long value;
char *rest;
return -EINVAL;
if (atkbd->softrepeat != value) {
- /* unregister device as it's properties will change */
- input_unregister_device(&atkbd->dev);
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+ input_unregister_device(atkbd->dev);
+ atkbd->dev = new_dev;
atkbd->softrepeat = value;
if (atkbd->softrepeat)
atkbd->softraw = 1;
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
+ input_register_device(atkbd->dev);
}
-
return count;
}
static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
{
+ struct input_dev *new_dev;
unsigned long value;
char *rest;
return -EINVAL;
if (atkbd->softraw != value) {
- /* unregister device as it's properties will change */
- input_unregister_device(&atkbd->dev);
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+ input_unregister_device(atkbd->dev);
+ atkbd->dev = new_dev;
atkbd->softraw = value;
atkbd_set_device_attrs(atkbd);
- input_register_device(&atkbd->dev);
+ input_register_device(atkbd->dev);
}
return count;
}
git://git.onelab.eu / linux-2.6.git / blobdiff