summaryrefslogtreecommitdiff
path: root/pjrc/usb_mouse.c
diff options
context:
space:
mode:
Diffstat (limited to 'pjrc/usb_mouse.c')
-rw-r--r--pjrc/usb_mouse.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/pjrc/usb_mouse.c b/pjrc/usb_mouse.c
new file mode 100644
index 0000000000..319b65a1cb
--- /dev/null
+++ b/pjrc/usb_mouse.c
@@ -0,0 +1,58 @@
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "usb_mouse.h"
+#include "print.h"
+#include "debug.h"
+
+
+uint8_t usb_mouse_protocol=1;
+
+
+int8_t usb_mouse_send(int8_t x, int8_t y, int8_t wheel_v, int8_t wheel_h, uint8_t buttons)
+{
+ uint8_t intr_state, timeout;
+
+ if (!usb_configured()) return -1;
+ if (x == -128) x = -127;
+ if (y == -128) y = -127;
+ if (wheel_v == -128) wheel_v = -127;
+ if (wheel_h == -128) wheel_h = -127;
+ intr_state = SREG;
+ cli();
+ UENUM = MOUSE_ENDPOINT;
+ timeout = UDFNUML + 50;
+ while (1) {
+ // are we ready to transmit?
+ if (UEINTX & (1<<RWAL)) break;
+ SREG = intr_state;
+ // has the USB gone offline?
+ if (!usb_configured()) return -1;
+ // have we waited too long?
+ if (UDFNUML == timeout) return -1;
+ // get ready to try checking again
+ intr_state = SREG;
+ cli();
+ UENUM = MOUSE_ENDPOINT;
+ }
+ UEDATX = buttons;
+ UEDATX = x;
+ UEDATX = y;
+ if (usb_mouse_protocol) {
+ UEDATX = wheel_v;
+ UEDATX = wheel_h;
+ }
+
+ UEINTX = 0x3A;
+ SREG = intr_state;
+ return 0;
+}
+
+void usb_mouse_print(int8_t x, int8_t y, int8_t wheel_v, int8_t wheel_h, uint8_t buttons) {
+ if (!debug_mouse) return;
+ print("usb_mouse[btn|x y v h]: ");
+ phex(buttons); print("|");
+ phex(x); print(" ");
+ phex(y); print(" ");
+ phex(wheel_v); print(" ");
+ phex(wheel_h); print("\n");
+}