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Input: lkkbd - miscellaneous fixes
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* Hide debugging code into #ifdef, which allows to simplify
  the large switch statement
* Update macros to not reference variables not given as
  arguments

Signed-off-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Jan-Benedict Glaw authored and Dmitry Torokhov committed Nov 3, 2005
1 parent 14a48b4 commit 0aeafa7
Showing 1 changed file with 59 additions and 42 deletions.
101 changes: 59 additions & 42 deletions drivers/input/keyboard/lkkbd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -273,11 +273,11 @@ static lk_keycode_t lkkbd_keycode[LK_NUM_KEYCODES] = {
[0xfb] = KEY_APOSTROPHE,
};

#define CHECK_LED(LED, BITS) do { \
if (test_bit (LED, lk->dev->led)) \
leds_on |= BITS; \
else \
leds_off |= BITS; \
#define CHECK_LED(LK, VAR_ON, VAR_OFF, LED, BITS) do { \
if (test_bit (LED, (LK)->dev->led)) \
VAR_ON |= BITS; \
else \
VAR_OFF |= BITS; \
} while (0)

/*
Expand All @@ -298,6 +298,42 @@ struct lkkbd {
int ctrlclick_volume;
};

#ifdef LKKBD_DEBUG
/*
* Responses from the keyboard and mapping back to their names.
*/
static struct {
unsigned char value;
unsigned char *name;
} lk_response[] = {
#define RESPONSE(x) { .value = (x), .name = #x, }
RESPONSE (LK_STUCK_KEY),
RESPONSE (LK_SELFTEST_FAILED),
RESPONSE (LK_ALL_KEYS_UP),
RESPONSE (LK_METRONOME),
RESPONSE (LK_OUTPUT_ERROR),
RESPONSE (LK_INPUT_ERROR),
RESPONSE (LK_KBD_LOCKED),
RESPONSE (LK_KBD_TEST_MODE_ACK),
RESPONSE (LK_PREFIX_KEY_DOWN),
RESPONSE (LK_MODE_CHANGE_ACK),
RESPONSE (LK_RESPONSE_RESERVED),
#undef RESPONSE
};

static unsigned char *
response_name (unsigned char value)
{
int i;

for (i = 0; i < ARRAY_SIZE (lk_response); i++)
if (lk_response[i].value == value)
return lk_response[i].name;

return "<unknown>";
}
#endif /* LKKBD_DEBUG */

/*
* Calculate volume parameter byte for a given volume.
*/
Expand Down Expand Up @@ -440,43 +476,24 @@ lkkbd_interrupt (struct serio *serio, unsigned char data, unsigned int flags,
input_report_key (lk->dev, lk->keycode[i], 0);
input_sync (lk->dev);
break;
case LK_METRONOME:
DBG (KERN_INFO "Got LK_METRONOME and don't "
"know how to handle...\n");

case 0x01:
DBG (KERN_INFO "Got 0x01, scheduling re-initialization\n");
lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
schedule_work (&lk->tq);
break;

case LK_METRONOME:
case LK_OUTPUT_ERROR:
DBG (KERN_INFO "Got LK_OUTPUT_ERROR and don't "
"know how to handle...\n");
break;
case LK_INPUT_ERROR:
DBG (KERN_INFO "Got LK_INPUT_ERROR and don't "
"know how to handle...\n");
break;
case LK_KBD_LOCKED:
DBG (KERN_INFO "Got LK_KBD_LOCKED and don't "
"know how to handle...\n");
break;
case LK_KBD_TEST_MODE_ACK:
DBG (KERN_INFO "Got LK_KBD_TEST_MODE_ACK and don't "
"know how to handle...\n");
break;
case LK_PREFIX_KEY_DOWN:
DBG (KERN_INFO "Got LK_PREFIX_KEY_DOWN and don't "
"know how to handle...\n");
break;
case LK_MODE_CHANGE_ACK:
DBG (KERN_INFO "Got LK_MODE_CHANGE_ACK and ignored "
"it properly...\n");
break;
case LK_RESPONSE_RESERVED:
DBG (KERN_INFO "Got LK_RESPONSE_RESERVED and don't "
"know how to handle...\n");
break;
case 0x01:
DBG (KERN_INFO "Got 0x01, scheduling re-initialization\n");
lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
schedule_work (&lk->tq);
DBG (KERN_INFO "Got %s and don't know how to handle...\n",
response_name (data));
break;

default:
Expand Down Expand Up @@ -509,10 +526,10 @@ lkkbd_event (struct input_dev *dev, unsigned int type, unsigned int code,

switch (type) {
case EV_LED:
CHECK_LED (LED_CAPSL, LK_LED_SHIFTLOCK);
CHECK_LED (LED_COMPOSE, LK_LED_COMPOSE);
CHECK_LED (LED_SCROLLL, LK_LED_SCROLLLOCK);
CHECK_LED (LED_SLEEP, LK_LED_WAIT);
CHECK_LED (lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
CHECK_LED (lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
CHECK_LED (lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
CHECK_LED (lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
if (leds_on != 0) {
lk->serio->write (lk->serio, LK_CMD_LED_ON);
lk->serio->write (lk->serio, leds_on);
Expand Down Expand Up @@ -574,10 +591,10 @@ lkkbd_reinit (void *data)
lk->serio->write (lk->serio, LK_CMD_SET_DEFAULTS);

/* Set LEDs */
CHECK_LED (LED_CAPSL, LK_LED_SHIFTLOCK);
CHECK_LED (LED_COMPOSE, LK_LED_COMPOSE);
CHECK_LED (LED_SCROLLL, LK_LED_SCROLLLOCK);
CHECK_LED (LED_SLEEP, LK_LED_WAIT);
CHECK_LED (lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
CHECK_LED (lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
CHECK_LED (lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
CHECK_LED (lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
if (leds_on != 0) {
lk->serio->write (lk->serio, LK_CMD_LED_ON);
lk->serio->write (lk->serio, leds_on);
Expand Down

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