From 969ca2f7a1a41123f08ce67d7a51075c3ee2fd6e Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Tue, 23 Jun 2020 21:49:25 +0100 Subject: [PATCH] adb: introduce new ADBDeviceHasData method to ADBDeviceClass This is required later to allow devices to assert a service request (SRQ) signal to indicate that it has data to send, without having to consume it. Signed-off-by: Mark Cave-Ayland Tested-by: Finn Thain Acked-by: Laurent Vivier Message-Id: <20200623204936.24064-12-mark.cave-ayland@ilande.co.uk> --- hw/input/adb-kbd.c | 8 ++++++++ hw/input/adb-mouse.c | 9 +++++++++ include/hw/input/adb.h | 3 +++ 3 files changed, 20 insertions(+) diff --git a/hw/input/adb-kbd.c b/hw/input/adb-kbd.c index 027dd3e531..23760ecf7b 100644 --- a/hw/input/adb-kbd.c +++ b/hw/input/adb-kbd.c @@ -300,6 +300,13 @@ static int adb_kbd_request(ADBDevice *d, uint8_t *obuf, return olen; } +static bool adb_kbd_has_data(ADBDevice *d) +{ + KBDState *s = ADB_KEYBOARD(d); + + return s->count > 0; +} + /* This is where keyboard events enter this file */ static void adb_keyboard_event(DeviceState *dev, QemuConsole *src, InputEvent *evt) @@ -382,6 +389,7 @@ static void adb_kbd_class_init(ObjectClass *oc, void *data) set_bit(DEVICE_CATEGORY_INPUT, dc->categories); adc->devreq = adb_kbd_request; + adc->devhasdata = adb_kbd_has_data; dc->reset = adb_kbd_reset; dc->vmsd = &vmstate_adb_kbd; } diff --git a/hw/input/adb-mouse.c b/hw/input/adb-mouse.c index 78b6f5030c..e2359fd74d 100644 --- a/hw/input/adb-mouse.c +++ b/hw/input/adb-mouse.c @@ -197,6 +197,14 @@ static int adb_mouse_request(ADBDevice *d, uint8_t *obuf, return olen; } +static bool adb_mouse_has_data(ADBDevice *d) +{ + MouseState *s = ADB_MOUSE(d); + + return !(s->last_buttons_state == s->buttons_state && + s->dx == 0 && s->dy == 0); +} + static void adb_mouse_reset(DeviceState *dev) { ADBDevice *d = ADB_DEVICE(dev); @@ -252,6 +260,7 @@ static void adb_mouse_class_init(ObjectClass *oc, void *data) set_bit(DEVICE_CATEGORY_INPUT, dc->categories); adc->devreq = adb_mouse_request; + adc->devhasdata = adb_mouse_has_data; dc->reset = adb_mouse_reset; dc->vmsd = &vmstate_adb_mouse; } diff --git a/include/hw/input/adb.h b/include/hw/input/adb.h index 15b1874a3d..9b80204e43 100644 --- a/include/hw/input/adb.h +++ b/include/hw/input/adb.h @@ -39,6 +39,8 @@ typedef struct ADBDevice ADBDevice; typedef int ADBDeviceRequest(ADBDevice *d, uint8_t *buf_out, const uint8_t *buf, int len); +typedef bool ADBDeviceHasData(ADBDevice *d); + #define TYPE_ADB_DEVICE "adb-device" #define ADB_DEVICE(obj) OBJECT_CHECK(ADBDevice, (obj), TYPE_ADB_DEVICE) @@ -62,6 +64,7 @@ typedef struct ADBDeviceClass { /*< public >*/ ADBDeviceRequest *devreq; + ADBDeviceHasData *devhasdata; } ADBDeviceClass; #define TYPE_ADB_BUS "apple-desktop-bus" -- 2.11.0