kernel: ps2 mouse support

1 files changed, 32 insertions, 0 deletions

diff --git a/src/user/app/mousedump/mousedump.c b/src/user/app/mousedump/mousedump.c
new file mode 100644
index 0000000..04331a3
--- /dev/null
+++ b/src/user/app/mousedump/mousedump.c
@@ -0,0 +1,32 @@
+#include <camellia/syscalls.h>
+#include <unistd.h>
+#include <shared/container/ring.h>
+#include <stdio.h>
+
+static uint8_t r_buf[64];
+static ring_t r = {(void*)r_buf, sizeof r_buf, 0, 0};
+
+struct packet {
+	uint8_t stuff;
+	int8_t dx, dy;
+} __attribute__((packed));
+
+int main(void) {
+	char buf[64];
+	handle_t fd = _syscall_open("/kdev/ps2/mouse", 15, 0);
+	if (fd < 0) {
+		fprintf(stderr, "couldn't open mouse\n");
+		exit(1);
+	}
+	for (;;) {
+		int len = _syscall_read(fd, buf, sizeof buf, 0);
+		if (len == 0) break;
+		ring_put(&r, buf, len);
+		while (ring_size(&r) >= 3) {
+			struct packet p;
+			ring_get(&r, &p, sizeof p);
+			printf("%4d %4d\n", p.dx, p.dy);
+		}
+	}
+	return 0;
+}