Input: zaurus keyboard driver updates

  * Change the scan interval from 100ms to 50ms. This stops the key
    repeat from triggering on double letter presses.
  * Remove unneeded stale hinge code from corgikbd
  * Change unneeded corgi GPIO pins to inputs when suspended
  * Add support for the headphone jack switch for both corgi and spitz
    (as switch SW_2)

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 24 insertions, 11 deletions

diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c
index e301ee4ca264..96c6bf77248a 100644
--- a/drivers/input/keyboard/corgikbd.c
+++ b/drivers/input/keyboard/corgikbd.c
@@ -29,11 +29,11 @@
 #define KB_COLS				12
 #define KB_ROWMASK(r)		(1 << (r))
 #define SCANCODE(r,c)		( ((r)<<4) + (c) + 1 )
-/* zero code, 124 scancodes + 3 hinge combinations */
-#define	NR_SCANCODES		( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 +3 )
-#define SCAN_INTERVAL		(HZ/10)
+/* zero code, 124 scancodes */
+#define	NR_SCANCODES		( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 )
 
-#define HINGE_SCAN_INTERVAL		(HZ/4)
+#define SCAN_INTERVAL		(50) /* ms */
+#define HINGE_SCAN_INTERVAL	(250) /* ms */
 
 #define CORGI_KEY_CALENDER	KEY_F1
 #define CORGI_KEY_ADDRESS	KEY_F2
@@ -49,9 +49,6 @@
 #define CORGI_KEY_MAIL		KEY_F10
 #define CORGI_KEY_OK		KEY_F11
 #define CORGI_KEY_MENU		KEY_F12
-#define CORGI_HINGE_0		KEY_KP0
-#define CORGI_HINGE_1		KEY_KP1
-#define CORGI_HINGE_2		KEY_KP2
 
 static unsigned char corgikbd_keycode[NR_SCANCODES] = {
 	0,                                                                                                                /* 0 */
@@ -63,7 +60,6 @@ static unsigned char corgikbd_keycode[NR_SCANCODES] = {
 	CORGI_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, 0, CORGI_KEY_FN, 0, 0, 0, 0,            /* 81-96 */
 	KEY_SYSRQ, CORGI_KEY_JAP1, CORGI_KEY_JAP2, CORGI_KEY_CANCEL, CORGI_KEY_OK, CORGI_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0,  /* 97-112 */
 	CORGI_KEY_OFF, CORGI_KEY_EXOK, CORGI_KEY_EXCANCEL, CORGI_KEY_EXJOGDOWN, CORGI_KEY_EXJOGUP, 0, 0, 0, 0, 0, 0, 0,   /* 113-124 */
-	CORGI_HINGE_0, CORGI_HINGE_1, CORGI_HINGE_2	  /* 125-127 */
 };
 
 
@@ -187,7 +183,7 @@ static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data, struct pt_regs
 
 	/* if any keys are pressed, enable the timer */
 	if (num_pressed)
-		mod_timer(&corgikbd_data->timer, jiffies + SCAN_INTERVAL);
+		mod_timer(&corgikbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL));
 
 	spin_unlock_irqrestore(&corgikbd_data->lock, flags);
 }
@@ -228,6 +224,7 @@ static void corgikbd_timer_callback(unsigned long data)
  *          0x0c - Keyboard and Screen Closed
  */
 
+#define READ_GPIO_BIT(x)    (GPLR(x) & GPIO_bit(x))
 #define HINGE_STABLE_COUNT 2
 static int sharpsl_hinge_state;
 static int hinge_count;
@@ -239,6 +236,7 @@ static void corgikbd_hinge_timer(unsigned long data)
 	unsigned long flags;
 
 	gprr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_GPRR) & (CORGI_SCP_SWA | CORGI_SCP_SWB);
+	gprr |= (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0);
 	if (gprr != sharpsl_hinge_state) {
 		hinge_count = 0;
 		sharpsl_hinge_state = gprr;
@@ -249,27 +247,38 @@ static void corgikbd_hinge_timer(unsigned long data)
 
 			input_report_switch(corgikbd_data->input, SW_0, ((sharpsl_hinge_state & CORGI_SCP_SWA) != 0));
 			input_report_switch(corgikbd_data->input, SW_1, ((sharpsl_hinge_state & CORGI_SCP_SWB) != 0));
+			input_report_switch(corgikbd_data->input, SW_2, (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0));
 			input_sync(corgikbd_data->input);
 
 			spin_unlock_irqrestore(&corgikbd_data->lock, flags);
 		}
 	}
-	mod_timer(&corgikbd_data->htimer, jiffies + HINGE_SCAN_INTERVAL);
+	mod_timer(&corgikbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
 }
 
 #ifdef CONFIG_PM
 static int corgikbd_suspend(struct platform_device *dev, pm_message_t state)
 {
+	int i;
 	struct corgikbd *corgikbd = platform_get_drvdata(dev);
+
 	corgikbd->suspended = 1;
+	/* strobe 0 is the power key so this can't be made an input for
+	   powersaving therefore i = 1 */
+	for (i = 1; i < CORGI_KEY_STROBE_NUM; i++)
+		pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_IN);
 
 	return 0;
 }
 
 static int corgikbd_resume(struct platform_device *dev)
 {
+	int i;
 	struct corgikbd *corgikbd = platform_get_drvdata(dev);
 
+	for (i = 1; i < CORGI_KEY_STROBE_NUM; i++)
+		pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
+
 	/* Upon resume, ignore the suspend key for a short while */
 	corgikbd->suspend_jiffies=jiffies;
 	corgikbd->suspended = 0;
@@ -333,10 +342,11 @@ static int __init corgikbd_probe(struct platform_device *pdev)
 	clear_bit(0, input_dev->keybit);
 	set_bit(SW_0, input_dev->swbit);
 	set_bit(SW_1, input_dev->swbit);
+	set_bit(SW_2, input_dev->swbit);
 
 	input_register_device(corgikbd->input);
 
-	mod_timer(&corgikbd->htimer, jiffies + HINGE_SCAN_INTERVAL);
+	mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
 
 	/* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
 	for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) {
@@ -351,6 +361,9 @@ static int __init corgikbd_probe(struct platform_device *pdev)
 	for (i = 0; i < CORGI_KEY_STROBE_NUM; i++)
 		pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
 
+	/* Setup the headphone jack as an input */
+	pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN);
+
 	return 0;
 }