module_param_named(softraw, atkbd_softraw, bool, 0);
MODULE_PARM_DESC(softraw, "Use software generated rawmode");
-static int atkbd_scroll = 0;
+static int atkbd_scroll;
module_param_named(scroll, atkbd_scroll, bool, 0);
MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
#define ATKBD_RET_EMUL0 0xe0
#define ATKBD_RET_EMUL1 0xe1
#define ATKBD_RET_RELEASE 0xf0
-#define ATKBD_RET_HANGEUL 0xf1
-#define ATKBD_RET_HANJA 0xf2
+#define ATKBD_RET_HANJA 0xf1
+#define ATKBD_RET_HANGEUL 0xf2
#define ATKBD_RET_ERR 0xff
#define ATKBD_KEY_UNKNOWN 0
#define ATKBD_LED_EVENT_BIT 0
#define ATKBD_REP_EVENT_BIT 1
+#define ATKBD_XL_ERR 0x01
+#define ATKBD_XL_BAT 0x02
+#define ATKBD_XL_ACK 0x04
+#define ATKBD_XL_NAK 0x08
+#define ATKBD_XL_HANGEUL 0x10
+#define ATKBD_XL_HANJA 0x20
+
static struct {
unsigned char keycode;
unsigned char set2;
unsigned char emul;
unsigned char resend;
unsigned char release;
- unsigned char bat_xl;
- unsigned char err_xl;
+ unsigned long xl_bit;
unsigned int last;
unsigned long time;
ATKBD_DEFINE_ATTR(softrepeat);
ATKBD_DEFINE_ATTR(softraw);
+static const unsigned int xl_table[] = {
+ ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
+ ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
+};
-static void atkbd_report_key(struct input_dev *dev, struct pt_regs *regs, int code, int value)
+/*
+ * Checks if we should mangle the scancode to extract 'release' bit
+ * in translated mode.
+ */
+static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
{
- input_regs(dev, regs);
- if (value == 3) {
- input_report_key(dev, code, 1);
- input_sync(dev);
- input_report_key(dev, code, 0);
- } else
- input_event(dev, EV_KEY, code, value);
- input_sync(dev);
+ int i;
+
+ if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(xl_table); i++)
+ if (code == xl_table[i])
+ return test_bit(i, &xl_bit);
+
+ return 1;
+}
+
+/*
+ * Calculates new value of xl_bit so the driver can distinguish
+ * between make/break pair of scancodes for select keys and PS/2
+ * protocol responses.
+ */
+static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
+ if (!((code ^ xl_table[i]) & 0x7f)) {
+ if (code & 0x80)
+ __clear_bit(i, &atkbd->xl_bit);
+ else
+ __set_bit(i, &atkbd->xl_bit);
+ break;
+ }
+ }
+}
+
+/*
+ * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
+ * keeping kernel 2.4 compatibility for set 2
+ */
+static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
+{
+ if (atkbd->set == 3) {
+ if (atkbd->emul == 1)
+ code |= 0x100;
+ } else {
+ code = (code & 0x7f) | ((code & 0x80) << 1);
+ if (atkbd->emul == 1)
+ code |= 0x80;
+ }
+
+ return code;
}
/*
unsigned int flags, struct pt_regs *regs)
{
struct atkbd *atkbd = serio_get_drvdata(serio);
+ struct input_dev *dev = atkbd->dev;
unsigned int code = data;
- int scroll = 0, hscroll = 0, click = -1;
+ int scroll = 0, hscroll = 0, click = -1, add_release_event = 0;
int value;
+ unsigned char keycode;
#ifdef ATKBD_DEBUG
printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
if (!atkbd->enabled)
goto out;
- input_event(atkbd->dev, EV_MSC, MSC_RAW, code);
+ input_event(dev, EV_MSC, MSC_RAW, code);
if (atkbd->translated) {
- if (atkbd->emul ||
- (code != ATKBD_RET_EMUL0 && code != ATKBD_RET_EMUL1 &&
- code != ATKBD_RET_HANGEUL && code != ATKBD_RET_HANJA &&
- (code != ATKBD_RET_ERR || atkbd->err_xl) &&
- (code != ATKBD_RET_BAT || atkbd->bat_xl))) {
+ if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
atkbd->release = code >> 7;
code &= 0x7f;
}
- 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);
- }
+ if (!atkbd->emul)
+ atkbd_calculate_xl_bit(atkbd, data);
}
switch (code) {
case ATKBD_RET_RELEASE:
atkbd->release = 1;
goto out;
- case ATKBD_RET_HANGEUL:
- atkbd_report_key(atkbd->dev, regs, KEY_HANGEUL, 3);
+ case ATKBD_RET_ACK:
+ case ATKBD_RET_NAK:
+ printk(KERN_WARNING "atkbd.c: Spurious %s on %s. "
+ "Some program might be trying access hardware directly.\n",
+ data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
goto out;
+ case ATKBD_RET_HANGEUL:
case ATKBD_RET_HANJA:
- atkbd_report_key(atkbd->dev, regs, KEY_HANJA, 3);
- goto out;
+ /*
+ * These keys do not report release and thus need to be
+ * flagged properly
+ */
+ add_release_event = 1;
+ break;
case ATKBD_RET_ERR:
printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys);
goto out;
}
- if (atkbd->set != 3)
- code = (code & 0x7f) | ((code & 0x80) << 1);
- if (atkbd->emul) {
- if (--atkbd->emul)
- goto out;
- code |= (atkbd->set != 3) ? 0x80 : 0x100;
- }
+ code = atkbd_compat_scancode(atkbd, code);
+
+ if (atkbd->emul && --atkbd->emul)
+ goto out;
+
+ keycode = atkbd->keycode[code];
- if (atkbd->keycode[code] != ATKBD_KEY_NULL)
- input_event(atkbd->dev, EV_MSC, MSC_SCAN, code);
+ if (keycode != ATKBD_KEY_NULL)
+ input_event(dev, EV_MSC, MSC_SCAN, code);
- switch (atkbd->keycode[code]) {
+ switch (keycode) {
case ATKBD_KEY_NULL:
break;
case ATKBD_KEY_UNKNOWN:
- if (data == ATKBD_RET_ACK || data == ATKBD_RET_NAK) {
- 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);
- } else {
- printk(KERN_WARNING "atkbd.c: Unknown key %s "
- "(%s set %d, code %#x on %s).\n",
- atkbd->release ? "released" : "pressed",
- atkbd->translated ? "translated" : "raw",
- atkbd->set, code, serio->phys);
- printk(KERN_WARNING "atkbd.c: Use 'setkeycodes %s%02x <keycode>' "
- "to make it known.\n",
- code & 0x80 ? "e0" : "", code & 0x7f);
- }
- input_sync(atkbd->dev);
+ printk(KERN_WARNING
+ "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n",
+ atkbd->release ? "released" : "pressed",
+ atkbd->translated ? "translated" : "raw",
+ atkbd->set, code, serio->phys);
+ printk(KERN_WARNING
+ "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
+ code & 0x80 ? "e0" : "", code & 0x7f);
+ input_sync(dev);
break;
case ATKBD_SCR_1:
scroll = 1 - atkbd->release * 2;
hscroll = 1;
break;
default:
- value = atkbd->release ? 0 :
- (1 + (!atkbd->softrepeat && test_bit(atkbd->keycode[code], atkbd->dev->key)));
-
- 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;
- break;
- case 2:
- if (!time_after(jiffies, atkbd->time) && atkbd->last == code)
- value = 1;
- break;
+ if (atkbd->release) {
+ value = 0;
+ atkbd->last = 0;
+ } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
+ /* Workaround Toshiba laptop multiple keypress */
+ value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
+ } else {
+ value = 1;
+ atkbd->last = code;
+ atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
}
- atkbd_report_key(atkbd->dev, regs, atkbd->keycode[code], value);
+ input_regs(dev, regs);
+ input_report_key(dev, keycode, value);
+ input_sync(dev);
+
+ if (value && add_release_event) {
+ input_report_key(dev, keycode, 0);
+ input_sync(dev);
+ }
}
if (atkbd->scroll) {
- input_regs(atkbd->dev, regs);
+ input_regs(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(dev, BTN_MIDDLE, click);
+ input_report_rel(dev, REL_WHEEL, scroll);
+ input_report_rel(dev, REL_HWHEEL, hscroll);
+ input_sync(dev);
}
atkbd->release = 0;
for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++)
atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode;
}
+
+ atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL;
+ atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA;
}
/*
projects / platform / kernel / linux-exynos.git / commitdiff