From 11483c8f8afb089c39acabb2055f1a7167a9f531 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Wed, 13 Jul 2016 04:50:51 -0400
Subject: debug: ptyc_dbg_raw(): initial implementation.

---
 src/debug/ptyc_dbg_raw.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 56 insertions(+), 2 deletions(-)

(limited to 'src/debug')

diff --git a/src/debug/ptyc_dbg_raw.c b/src/debug/ptyc_dbg_raw.c
index 0e5814f..8d30d3e 100644
--- a/src/debug/ptyc_dbg_raw.c
+++ b/src/debug/ptyc_dbg_raw.c
@@ -14,6 +14,60 @@
 
 int __stdcall ptyc_dbg_raw(struct ptyc_driver_ctx_impl * ictx)
 {
-	(void)ictx;
-	return ntapi->tt_wait_for_dummy_event();
+	int32_t		status;
+	void *		hwait;
+	char *		ch;
+	nt_iosb		iosb;
+	size_t		nbytes;
+	unsigned char	uch;
+	unsigned int	keyval;
+	char		xch[6] = {0,0,0,0,0,0};
+
+	if ((status = ntapi->tt_create_private_event(
+			&hwait,
+			NT_NOTIFICATION_EVENT,
+			NT_EVENT_NOT_SIGNALED)))
+		return status;
+
+	do {
+		status = ntapi->pty_read(
+			ictx->cctx.hpts,
+			hwait,0,0,
+			&iosb,
+			&uch,1,
+			0,0);
+
+		if (status == NT_STATUS_PENDING)
+			status = ntapi->zw_wait_for_single_object(
+				hwait,NT_SYNC_ALERTABLE,0);
+
+		if (status || iosb.status) {
+			ntapi->zw_close(hwait);
+			return status ? status : iosb.status;
+		}
+
+		ntapi->sprintf(xch,"0x%02x ",(keyval = uch));
+		nbytes = sizeof(xch) - 1;
+
+		for (ch=xch; nbytes; ) {
+			status = ntapi->pty_write(
+				ictx->cctx.hpts,
+				hwait,0,0,
+				&iosb,
+				ch,nbytes,
+				0,0);
+
+			if (status == NT_STATUS_PENDING)
+				status = ntapi->zw_wait_for_single_object(
+					hwait,NT_SYNC_ALERTABLE,0);
+
+			if (status || iosb.status) {
+				ntapi->zw_close(hwait);
+				return status ? status : iosb.status;
+			}
+
+			ch     += iosb.info;
+			nbytes -= iosb.info;
+		}
+	} while (1);
 }
-- 
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