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commit 0ee2bb51b840e32460ec9e0b5fde2111eddf1462
Author: SPRESENSE <41312067+sprese...@users.noreply.github.com>
AuthorDate: Sat Oct 28 20:17:37 2023 +0900
boards: cxd56xx: Add cxd5610 gnss lowerhalf driver
Add cxd5610 gnss lowerhalf driver with i2c interface.
---
boards/arm/cxd56xx/common/CMakeLists.txt | 4 +
boards/arm/cxd56xx/common/src/Make.defs | 4 +
boards/arm/cxd56xx/common/src/cxd56_gnss_addon.c | 163 +++++++++++++++++++++
boards/arm/cxd56xx/spresense/Kconfig | 18 +++
.../cxd56xx/spresense/include/cxd56_gnss_addon.h | 71 +++++++++
5 files changed, 260 insertions(+)
diff --git a/boards/arm/cxd56xx/common/CMakeLists.txt
b/boards/arm/cxd56xx/common/CMakeLists.txt
index 4ed42aa228..65bbb9e36c 100644
--- a/boards/arm/cxd56xx/common/CMakeLists.txt
+++ b/boards/arm/cxd56xx/common/CMakeLists.txt
@@ -179,5 +179,9 @@ if(CONFIG_ARCH_BOARD_COMMON)
list(APPEND SRCS src/cxd56_usbdevserialstr.c)
endif()
+ if(CONFIG_CXD56_GNSS_ADDON)
+ list(APPEND SRCS src/cxd56_gnss_addon.c)
+ endif()
+
target_sources(board PRIVATE ${SRCS})
endif()
diff --git a/boards/arm/cxd56xx/common/src/Make.defs
b/boards/arm/cxd56xx/common/src/Make.defs
index f118b89607..cfa132ed09 100644
--- a/boards/arm/cxd56xx/common/src/Make.defs
+++ b/boards/arm/cxd56xx/common/src/Make.defs
@@ -184,6 +184,10 @@ ifeq ($(CONFIG_PM),y)
CSRCS += cxd56_pm.c
endif
+ifeq ($(CONFIG_CXD56_GNSS_ADDON),y)
+ CSRCS += cxd56_gnss_addon.c
+endif
+
DEPPATH += --dep-path src
VPATH += :src
CFLAGS +=
${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
diff --git a/boards/arm/cxd56xx/common/src/cxd56_gnss_addon.c
b/boards/arm/cxd56xx/common/src/cxd56_gnss_addon.c
new file mode 100644
index 0000000000..4820ae9ea5
--- /dev/null
+++ b/boards/arm/cxd56xx/common/src/cxd56_gnss_addon.c
@@ -0,0 +1,163 @@
+/****************************************************************************
+ * boards/arm/cxd56xx/common/src/cxd56_gnss_addon.c
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <stdint.h>
+#include <errno.h>
+#include <debug.h>
+#include <nuttx/sensors/cxd5610_gnss.h>
+#include <nuttx/i2c/i2c_master.h>
+#include <arch/chip/pin.h>
+#include <arch/board/board.h>
+#include "cxd56_i2c.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* I2C interface */
+
+#define CXD5610_I2C_ADDR 0x24
+#define CXD5610_I2C_FREQ 400000
+#define CXD5610_INT_PIN PIN_SEN_IRQ_IN
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static int cxd5610_gnss_i2csend(struct cxd5610_gnss_lowerhalf_s *lower,
+ uint8_t *buffer, int buflen);
+static int cxd5610_gnss_i2crecv(struct cxd5610_gnss_lowerhalf_s *lower,
+ uint8_t *buffer, int buflen);
+static int cxd5610_gnss_enableint(struct cxd5610_gnss_lowerhalf_s *lower,
+ void (*handler)(void));
+static int cxd5610_gnss_disableint(struct cxd5610_gnss_lowerhalf_s *lower);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const struct cxd5610_gnss_lowerops_s g_gnss_addon_ops =
+{
+ cxd5610_gnss_i2csend,
+ cxd5610_gnss_i2crecv,
+ cxd5610_gnss_enableint,
+ cxd5610_gnss_disableint
+};
+
+static struct cxd5610_gnss_lowerhalf_s g_gnss_addon_lowerhalf =
+{
+ &g_gnss_addon_ops
+};
+
+static struct i2c_master_s *g_i2c;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static int cxd5610_gnss_i2csend(struct cxd5610_gnss_lowerhalf_s *lower,
+ uint8_t *buffer, int buflen)
+{
+ struct i2c_msg_s msg;
+ int ret;
+
+ msg.frequency = CXD5610_I2C_FREQ;
+ msg.addr = CXD5610_I2C_ADDR;
+ msg.flags = 0;
+ msg.buffer = buffer;
+ msg.length = buflen;
+
+ ret = I2C_TRANSFER(g_i2c, &msg, 1);
+
+ return ret;
+}
+
+static int cxd5610_gnss_i2crecv(struct cxd5610_gnss_lowerhalf_s *lower,
+ uint8_t *buffer, int buflen)
+{
+ struct i2c_msg_s msg;
+ int ret;
+
+ msg.frequency = CXD5610_I2C_FREQ;
+ msg.addr = CXD5610_I2C_ADDR;
+ msg.flags = I2C_M_READ;
+ msg.buffer = buffer;
+ msg.length = buflen;
+
+ ret = I2C_TRANSFER(g_i2c, &msg, 1);
+ return ret;
+}
+
+static int cxd5610_gnss_enableint(struct cxd5610_gnss_lowerhalf_s *lower,
+ void (*handler)(void))
+{
+ /* Enable interrupt from CXD5610 device */
+
+ board_gpio_config(CXD5610_INT_PIN, 0, true, false, PIN_PULLDOWN);
+ board_gpio_intconfig(CXD5610_INT_PIN, INT_RISING_EDGE, false,
+ (xcpt_t)handler);
+ board_gpio_int(CXD5610_INT_PIN, true);
+
+ return OK;
+}
+
+static int cxd5610_gnss_disableint(struct cxd5610_gnss_lowerhalf_s *lower)
+{
+ /* Disable interrupt */
+
+ board_gpio_int(CXD5610_INT_PIN, false);
+
+ return OK;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int board_gnss_addon_initialize(const char *devpath, int bus)
+{
+ int ret;
+
+ sninfo("Initializing CXD5610 GNSS...\n");
+
+ /* Initialize i2c device */
+
+ g_i2c = cxd56_i2cbus_initialize(bus);
+ if (!g_i2c)
+ {
+ snerr("ERROR: Failed to initialize i2c%d.\n", bus);
+ return -ENODEV;
+ }
+
+ ret = cxd5610_gnss_register(devpath, &g_gnss_addon_lowerhalf);
+ if (ret < 0)
+ {
+ snerr("ERROR: registering CXD5610 GNSS.\n");
+ }
+
+ return ret;
+}
diff --git a/boards/arm/cxd56xx/spresense/Kconfig
b/boards/arm/cxd56xx/spresense/Kconfig
index d988d0c641..1b6fded184 100644
--- a/boards/arm/cxd56xx/spresense/Kconfig
+++ b/boards/arm/cxd56xx/spresense/Kconfig
@@ -838,4 +838,22 @@ config CXD56_EMMC_POWER_PIN_UART2_CTS
endchoice
+config CXD56_GNSS_ADDON
+ bool "CXD5610 GNSS Add-on board"
+ default n
+ depends on SENSORS_CXD5610_GNSS && CXD56_I2C0 && !CXD56_I2C0_SCUSEQ
+ ---help---
+ The CXD5610 GNSS Add-on driver can be registered.
+
+if CXD56_GNSS_ADDON
+
+config CXD56_GNSS_ADDON_LATE_INITIALIZE
+ bool "CXD5610 GNSS driver late initialization"
+ default n
+ ---help---
+ The CXD5610 gnss driver can be initialized on an application
code
+ after system booted up by enabling this configuration switch.
+
+endif # CXD56_GNSS_ADDON
+
endif
diff --git a/boards/arm/cxd56xx/spresense/include/cxd56_gnss_addon.h
b/boards/arm/cxd56xx/spresense/include/cxd56_gnss_addon.h
new file mode 100644
index 0000000000..3d0b34724c
--- /dev/null
+++ b/boards/arm/cxd56xx/spresense/include/cxd56_gnss_addon.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+ * boards/arm/cxd56xx/spresense/include/cxd56_gnss_addon.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 __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_GNSS_ADDON_H
+#define __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_GNSS_ADDON_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_gnss_addon_initialize
+ *
+ * Description:
+ * Initialize CXD5610 GNSS i2c driver and register the CXD5610 GNSS device.
+ *
+ ****************************************************************************/
+
+#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_CXD5610_GNSS)
+int board_gnss_addon_initialize(const char *devpath, int bus);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_GNSS_ADDON_H */
