Ctrl combo key support is added, which is very useful to input Ctrl-C for interrupt current job. Also add usb_event_poll() calling to usb_kbd_testc(), which can get key input when tstc() is called.

Signed-off-by: Zhang Wei wei.zhang@freescale.com --- common/usb_kbd.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/common/usb_kbd.c b/common/usb_kbd.c index 7bdfcc0..1703b23 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -84,6 +84,7 @@ int repeat_delay; static unsigned char num_lock = 0; static unsigned char caps_lock = 0; static unsigned char scroll_lock = 0; +static unsigned char ctrl = 0;

static unsigned char leds __attribute__ ((aligned (0x4)));

@@ -120,6 +121,9 @@ static void usb_kbd_put_queue(char data) /* test if a character is in the queue */ static int usb_kbd_testc(void) { +#ifdef CFG_USB_EVENT_POLL + usb_event_poll(); +#endif if(usb_in_pointer==usb_out_pointer) return(0); /* no data */ else @@ -274,6 +278,10 @@ static int usb_kbd_translate(unsigned char scancode,unsigned char modifier,int p else /* non shifted */ keycode=usb_kbd_numkey[scancode-0x1e]; } + + if (ctrl) + keycode = scancode - 0x3; + if(pressed==1) { if(scancode==NUM_LOCK) { num_lock=~num_lock; @@ -306,6 +314,17 @@ static int usb_kbd_irq(struct usb_device *dev) return 1; } res=0; + + switch (new[0]) { + case 0x0: /* No combo key pressed */ + ctrl = 0; + break; + case 0x01: /* Left Ctrl pressed */ + case 0x10: /* Right Ctrl pressed */ + ctrl = 1; + break; + } + for (i = 2; i < 8; i++) { if (old[i] > 3 && memscan(&new[2], old[i], 6) == &new[8]) { res|=usb_kbd_translate(old[i],new[0],0);