From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38572) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bJ0rl-0000ui-3Z for qemu-devel@nongnu.org; Fri, 01 Jul 2016 12:00:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bJ0ri-0006gD-Vk for qemu-devel@nongnu.org; Fri, 01 Jul 2016 12:00:28 -0400 Received: from mail-io0-x241.google.com ([2607:f8b0:4001:c06::241]:36746) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bJ0ri-0006g7-Qz for qemu-devel@nongnu.org; Fri, 01 Jul 2016 12:00:26 -0400 Received: by mail-io0-x241.google.com with SMTP id s63so11931414ioi.3 for ; Fri, 01 Jul 2016 09:00:26 -0700 (PDT) From: John Arbuckle Date: Fri, 1 Jul 2016 11:59:51 -0400 Message-Id: <1467388791-1657-4-git-send-email-programmingkidx@gmail.com> In-Reply-To: <1467388791-1657-1-git-send-email-programmingkidx@gmail.com> References: <1467388791-1657-1-git-send-email-programmingkidx@gmail.com> Subject: [Qemu-devel] [PATCH v2 3/3] hid.c: Add debug support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: eblake@redhat.com, qemu-devel@nongnu.org Cc: John Arbuckle Add debug macros to the code for easier debugging. Signed-off-by: John Arbuckle --- v2 changes: - Made DEBUG_HID() always defined hw/input/hid.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/hw/input/hid.c b/hw/input/hid.c index 3e1b46e..b5558cd 100644 --- a/hw/input/hid.c +++ b/hw/input/hid.c @@ -37,6 +37,19 @@ #define RELEASED -1 #define PUSHED -2 +/* #define DEBUG_HID_CODE */ +#ifdef DEBUG_HID_CODE + #define DEBUG_HID_PRINT 1 +#else + #define DEBUG_HID_PRINT 0 +#endif +#define DEBUG_HID(fmt, ...) \ + do { \ + if (DEBUG_HID_PRINT) { \ + fprintf(stderr, fmt, ## __VA_ARGS__); \ + } \ + } while (0) \ + /* Translates a QKeyCode to USB HID value */ static const uint8_t qcode_to_usb_hid[] = { [Q_KEY_CODE_SHIFT] = USB_HID_LEFT_SHIFT, @@ -331,6 +344,7 @@ static void hid_keyboard_event(DeviceState *dev, QemuConsole *src, return; } keycode = qcode_to_usb_hid[qcode]; + DEBUG_HID("keycode = 0x%x qcode:%d\n", keycode, qcode); count = 2; if (evt->u.key.data->down == false) { /* if key up event */ @@ -381,6 +395,9 @@ static void hid_keyboard_process_keycode(HIDState *hs) slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; keycode = hs->kbd.keycodes[slot]; + DEBUG_HID("keycode:0x%x status:%s\n", keycode, (status == PUSHED ? "Pushed" + : "Released")); + /* handle Control, Option, GUI/Windows/Command, and Shift keys */ if (keycode >= 0xe0) { process_modifier_key(status, keycode, &(hs->kbd.modifiers)); -- 2.7.2