boards: cxd56xx: Add cxd5610 gnss driver

Add cxd5610 gnss driver as board-specific sensor driver.

boards/arm/cxd56xx/drivers/sensors/Kconfig

@@ -203,3 +203,54 @@ config RPR0521RS_PROXIMITY_INTERRUPT
 
 endif # SENSORS_RPR0521RS_SCU
 endif # SCU_SENSORS
+
+config SENSORS_CXD5610_GNSS
+	bool "Sony CXD5610 GNSS"
+	default n
+	---help---
+		Enable driver for CXD5610 GNSS device.
+
+if SENSORS_CXD5610_GNSS
+
+config SENSORS_CXD5610_GNSS_SNDBUF_SIZE
+	int "CXD5610 GNSS send buffer size"
+	default 64
+
+config SENSORS_CXD5610_GNSS_RCVBUF_SIZE
+	int "CXD5610 GNSS receive buffer size"
+	default 64
+
+config SENSORS_CXD5610_GNSS_NOTIFYBUF_SIZE
+	int "CXD5610 GNSS notify buffer size"
+	default 1536
+
+config SENSORS_CXD5610_GNSS_NPOLLWAITERS
+	int "CXD5610 GNSS max poll waiters"
+	default 4
+
+config SENSORS_CXD5610_GNSS_NSIGNALRECEIVERS
+	int "CXD5610 GNSS max signal receivers"
+	default 4
+
+config SENSORS_CXD5610_GNSS_RX_THREAD_PRIORITY
+	int "CXD5610 GNSS receive thread priority"
+	default 120
+
+config SENSORS_CXD5610_GNSS_RX_THREAD_STACKSIZE
+	int "CXD5610 GNSS receive thread stack size"
+	default 1024
+
+config SENSORS_CXD5610_GNSS_UNALIGNED_ACCESS
+	bool "Unaligned access"
+	default y
+	depends on !ENDIAN_BIG
+	---help---
+		Support unaligned word and half-word access on little endian.
+
+config SENSORS_CXD5610_GNSS_READ_COMPAT
+	bool "Compatible with CXD5602 GNSS"
+	default y
+	---help---
+		Support compatible with CXD5602 GNSS
+
+endif # SENSORS_CXD5610_GNSS

boards/arm/cxd56xx/drivers/sensors/Make.defs

@@ -62,6 +62,10 @@ ifeq ($(CONFIG_SENSORS_RPR0521RS_SCU),y)
   CSRCS += rpr0521rs_scu.c
 endif
 
+ifeq ($(CONFIG_SENSORS_CXD5610_GNSS),y)
+  CSRCS += cxd5610_gnss.c
+endif
+
 DEPPATH += --dep-path platform$(DELIM)sensors
 VPATH += :platform$(DELIM)sensors
 CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)drivers$(DELIM)platform$(DELIM)sensors

include/nuttx/sensors/cxd5610_gnss.h

@@ -0,0 +1,98 @@
+/****************************************************************************
+ * include/nuttx/sensors/cxd5610_gnss.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_NUTTX_SENSORS_CXD5610_GNSS_H
+#define __INCLUDE_NUTTX_SENSORS_CXD5610_GNSS_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* This structure provides the "lower-half" driver operations available to
+ * the "upper-half" driver.
+ */
+
+struct cxd5610_gnss_lowerhalf_s;
+
+/* Structure for cxd5610 lower-half operations */
+
+struct cxd5610_gnss_lowerops_s
+{
+  /* Configure the cxd5610 gnss sensor device */
+
+  CODE int (*send)(FAR struct cxd5610_gnss_lowerhalf_s *lower,
+                   FAR uint8_t *buffer, int buflen);
+  CODE int (*recv)(FAR struct cxd5610_gnss_lowerhalf_s *lower,
+                   FAR uint8_t *buffer, int buflen);
+  CODE int (*enableint)(FAR struct cxd5610_gnss_lowerhalf_s *lower,
+                        CODE void (*handler)(void));
+  CODE int (*disableint)(FAR struct cxd5610_gnss_lowerhalf_s *lower);
+};
+
+/* Structure for cxd5610 lower-half driver */
+
+struct cxd5610_gnss_lowerhalf_s
+{
+  FAR const struct cxd5610_gnss_lowerops_s *ops;
+};
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: cxd5610_gnss_register
+ *
+ * Description:
+ *   Register the CXD5610 GNSS character device as 'devpath'
+ *
+ * Input Parameters:
+ *   devpath - The full path to the driver to register.
+ *   lower   - An instance of the lower half interface
+ *
+ * Returned Value:
+ *   Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int cxd5610_gnss_register(FAR const char *devpath,
+                          FAR struct cxd5610_gnss_lowerhalf_s *lower);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCLUDE_NUTTX_SENSORS_CXD5610_GNSS_H */