diff options
Diffstat (limited to 'os/hal/platforms/Win32/serial_lld.c')
| -rw-r--r-- | os/hal/platforms/Win32/serial_lld.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/os/hal/platforms/Win32/serial_lld.c b/os/hal/platforms/Win32/serial_lld.c new file mode 100644 index 000000000..ab8384254 --- /dev/null +++ b/os/hal/platforms/Win32/serial_lld.c @@ -0,0 +1,254 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file Win32/serial_lld.c
+ * @brief Win32 low level simulated serial driver code
+ * @addtogroup WIN32_SERIAL
+ * @{
+ */
+
+#include <windows.h>
+#include <stdio.h>
+
+#include <ch.h>
+#include <serial.h>
+
+/** @brief Serial driver 1 identifier.*/
+#if USE_WIN32_SERIAL1 || defined(__DOXYGEN__)
+SerialDriver SD1;
+#endif
+/** @brief Serial driver 2 identifier.*/
+#if USE_WIN32_SERIAL2 || defined(__DOXYGEN__)
+SerialDriver SD2;
+#endif
+
+/** @brief Driver default configuration.*/
+static const SerialDriverConfig default_config = {
+};
+
+static u_long nb = 1;
+
+/*===========================================================================*/
+/* Low Level Driver local functions. */
+/*===========================================================================*/
+
+static void init(SerialDriver *sdp, uint16_t port) {
+ struct sockaddr_in sad;
+ struct protoent *prtp;
+
+ if ((prtp = getprotobyname("tcp")) == NULL) {
+ printf("%s: Error mapping protocol name to protocol number\n", sdp->d2.com_name);
+ goto abort;
+ }
+
+ sdp->d2.com_listen = socket(PF_INET, SOCK_STREAM, prtp->p_proto);
+ if (sdp->d2.com_listen == INVALID_SOCKET) {
+ printf("%s: Error creating simulator socket\n", sdp->d2.com_name);
+ goto abort;
+ }
+
+ if (ioctlsocket(sdp->d2.com_listen, FIONBIO, &nb) != 0) {
+ printf("%s: Unable to setup non blocking mode on socket\n", sdp->d2.com_name);
+ goto abort;
+ }
+
+ memset(&sad, 0, sizeof(sad));
+ sad.sin_family = AF_INET;
+ sad.sin_addr.s_addr = INADDR_ANY;
+ sad.sin_port = htons(port);
+ if (bind(sdp->d2.com_listen, (struct sockaddr *)&sad, sizeof(sad))) {
+ printf("%s: Error binding socket\n", sdp->d2.com_name);
+ goto abort;
+ }
+
+ if (listen(sdp->d2.com_listen, 1) != 0) {
+ printf("%s: Error listening socket\n", sdp->d2.com_name);
+ goto abort;
+ }
+ printf("Full Duplex Channel %s listening on port %d\n", sdp->d2.com_name, port);
+ return;
+
+abort:
+ if (sdp->d2.com_listen != INVALID_SOCKET)
+ closesocket(sdp->d2.com_listen);
+ WSACleanup();
+ exit(1);
+}
+
+static bool_t connint(SerialDriver *sdp) {
+
+ if (sdp->d2.com_data == INVALID_SOCKET) {
+ struct sockaddr addr;
+ int addrlen = sizeof(addr);
+
+ if ((sdp->d2.com_data = accept(sdp->d2.com_listen, &addr, &addrlen)) == INVALID_SOCKET)
+ return FALSE;
+
+ if (ioctlsocket(sdp->d2.com_data, FIONBIO, &nb) != 0) {
+ printf("%s: Unable to setup non blocking mode on data socket\n", sdp->d2.com_name);
+ goto abort;
+ }
+ sdAddFlagsI(sdp, SD_CONNECTED);
+ return TRUE;
+ }
+ return FALSE;
+abort:
+ if (sdp->d2.com_listen != INVALID_SOCKET)
+ closesocket(sdp->d2.com_listen);
+ if (sdp->d2.com_data != INVALID_SOCKET)
+ closesocket(sdp->d2.com_data);
+ WSACleanup();
+ exit(1);
+}
+
+static bool_t inint(SerialDriver *sdp) {
+
+ if (sdp->d2.com_data != INVALID_SOCKET) {
+ int i;
+ uint8_t data[32];
+
+ /*
+ * Input.
+ */
+ int n = recv(sdp->d2.com_data, data, sizeof(data), 0);
+ switch (n) {
+ case 0:
+ closesocket(sdp->d2.com_data);
+ sdp->d2.com_data = INVALID_SOCKET;
+ sdAddFlagsI(sdp, SD_DISCONNECTED);
+ return FALSE;
+ case SOCKET_ERROR:
+ if (WSAGetLastError() == WSAEWOULDBLOCK)
+ return FALSE;
+ closesocket(sdp->d2.com_data);
+ sdp->d2.com_data = INVALID_SOCKET;
+ return FALSE;
+ }
+ for (i = 0; i < n; i++)
+ sdIncomingDataI(sdp, data[i]);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static bool_t outint(SerialDriver *sdp) {
+
+ if (sdp->d2.com_data != INVALID_SOCKET) {
+ int n;
+ uint8_t data[1];
+
+ /*
+ * Input.
+ */
+ n = sdRequestDataI(sdp);
+ if (n < 0)
+ return FALSE;
+ data[0] = (uint8_t)n;
+ n = send(sdp->d2.com_data, data, sizeof(data), 0);
+ switch (n) {
+ case 0:
+ closesocket(sdp->d2.com_data);
+ sdp->d2.com_data = INVALID_SOCKET;
+ sdAddFlagsI(sdp, SD_DISCONNECTED);
+ return FALSE;
+ case SOCKET_ERROR:
+ if (WSAGetLastError() == WSAEWOULDBLOCK)
+ return FALSE;
+ closesocket(sdp->d2.com_data);
+ sdp->d2.com_data = INVALID_SOCKET;
+ return FALSE;
+ }
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*===========================================================================*/
+/* Low Level Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Low Level Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * Low level serial driver initialization. + */
+void sd_lld_init(void) {
+
+#if USE_WIN32_SERIAL1
+ sdObjectInit(&SD1, NULL, NULL);
+ SD1.d2.com_listen = INVALID_SOCKET;
+ SD1.d2.com_data = INVALID_SOCKET;
+ SD1.d2.com_name = "SD1";
+#endif
+
+#if USE_WIN32_SERIAL1
+ sdObjectInit(&SD2, NULL, NULL);
+ SD2.d2.com_listen = INVALID_SOCKET;
+ SD2.d2.com_data = INVALID_SOCKET;
+ SD2.d2.com_name = "SD2";
+#endif
+}
+
+/**
+ * @brief Low level serial driver configuration and (re)start.
+ *
+ * @param[in] sdp pointer to a @p SerialDriver object
+ * @param[in] config the architecture-dependent serial driver configuration.
+ * If this parameter is set to @p NULL then a default
+ * configuration is used.
+ */
+void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config) {
+
+ if (config == NULL)
+ config = &default_config;
+
+#if USE_WIN32_SERIAL1
+ if (sdp == &SD1)
+ init(&SD1, SD1_PORT);
+#endif
+
+#if USE_WIN32_SERIAL1
+ if (sdp == &SD2)
+ init(&SD2, SD2_PORT);
+#endif
+}
+
+/**
+ * @brief Low level serial driver stop.
+ * @details De-initializes the USART, stops the associated clock, resets the
+ * interrupt vector.
+ *
+ * @param[in] sdp pointer to a @p SerialDriver object
+ */
+void sd_lld_stop(SerialDriver *sdp) {
+
+ (void)sdp;
+}
+
+bool_t sd_lld_interrupt_pending(void) {
+
+ return connint(&SD1) || connint(&SD2) ||
+ inint(&SD1) || inint(&SD2) ||
+ outint(&SD1) || outint(&SD2);
+}
+
+/** @} */
|