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boards: cxd56xx: Add cxd5610 gnss lowerhalf driver
Add cxd5610 gnss lowerhalf driver with i2c interface.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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> | ||
|
|
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| #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" | ||
|
|
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| /**************************************************************************** | ||
| * Pre-processor Definitions | ||
| ****************************************************************************/ | ||
|
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| /* I2C interface */ | ||
|
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| #define CXD5610_I2C_ADDR 0x24 | ||
| #define CXD5610_I2C_FREQ 400000 | ||
| #define CXD5610_INT_PIN PIN_SEN_IRQ_IN | ||
|
|
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| /**************************************************************************** | ||
| * Private Function Prototypes | ||
| ****************************************************************************/ | ||
|
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| 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); | ||
|
|
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| /**************************************************************************** | ||
| * Private Data | ||
| ****************************************************************************/ | ||
|
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| static const struct cxd5610_gnss_lowerops_s g_gnss_addon_ops = | ||
| { | ||
| cxd5610_gnss_i2csend, | ||
| cxd5610_gnss_i2crecv, | ||
| cxd5610_gnss_enableint, | ||
| cxd5610_gnss_disableint | ||
| }; | ||
|
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| static struct cxd5610_gnss_lowerhalf_s g_gnss_addon_lowerhalf = | ||
| { | ||
| &g_gnss_addon_ops | ||
| }; | ||
|
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| static struct i2c_master_s *g_i2c; | ||
|
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| /**************************************************************************** | ||
| * Private Functions | ||
| ****************************************************************************/ | ||
|
|
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| static int cxd5610_gnss_i2csend(struct cxd5610_gnss_lowerhalf_s *lower, | ||
| uint8_t *buffer, int buflen) | ||
| { | ||
| struct i2c_msg_s msg; | ||
| int ret; | ||
|
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| msg.frequency = CXD5610_I2C_FREQ; | ||
| msg.addr = CXD5610_I2C_ADDR; | ||
| msg.flags = 0; | ||
| msg.buffer = buffer; | ||
| msg.length = buflen; | ||
|
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| ret = I2C_TRANSFER(g_i2c, &msg, 1); | ||
|
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| return ret; | ||
| } | ||
|
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| static int cxd5610_gnss_i2crecv(struct cxd5610_gnss_lowerhalf_s *lower, | ||
| uint8_t *buffer, int buflen) | ||
| { | ||
| struct i2c_msg_s msg; | ||
| int ret; | ||
|
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| msg.frequency = CXD5610_I2C_FREQ; | ||
| msg.addr = CXD5610_I2C_ADDR; | ||
| msg.flags = I2C_M_READ; | ||
| msg.buffer = buffer; | ||
| msg.length = buflen; | ||
|
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| ret = I2C_TRANSFER(g_i2c, &msg, 1); | ||
| return ret; | ||
| } | ||
|
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| static int cxd5610_gnss_enableint(struct cxd5610_gnss_lowerhalf_s *lower, | ||
| void (*handler)(void)) | ||
| { | ||
| /* Enable interrupt from CXD5610 device */ | ||
|
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| 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); | ||
|
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| return OK; | ||
| } | ||
|
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| static int cxd5610_gnss_disableint(struct cxd5610_gnss_lowerhalf_s *lower) | ||
| { | ||
| /* Disable interrupt */ | ||
|
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| board_gpio_int(CXD5610_INT_PIN, false); | ||
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| return OK; | ||
| } | ||
|
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| /**************************************************************************** | ||
| * Public Functions | ||
| ****************************************************************************/ | ||
|
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| int board_gnss_addon_initialize(const char *devpath, int bus) | ||
| { | ||
| int ret; | ||
|
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| sninfo("Initializing CXD5610 GNSS...\n"); | ||
|
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| /* Initialize i2c device */ | ||
|
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| g_i2c = cxd56_i2cbus_initialize(bus); | ||
| if (!g_i2c) | ||
| { | ||
| snerr("ERROR: Failed to initialize i2c%d.\n", bus); | ||
| return -ENODEV; | ||
| } | ||
|
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| ret = cxd5610_gnss_register(devpath, &g_gnss_addon_lowerhalf); | ||
| if (ret < 0) | ||
| { | ||
| snerr("ERROR: registering CXD5610 GNSS.\n"); | ||
| } | ||
|
|
||
| return ret; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -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 | ||
| ****************************************************************************/ | ||
|
|
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| #include <nuttx/config.h> | ||
|
|
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| /**************************************************************************** | ||
| * Public Types | ||
| ****************************************************************************/ | ||
|
|
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| #ifndef __ASSEMBLY__ | ||
|
|
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| /**************************************************************************** | ||
| * Public Data | ||
| ****************************************************************************/ | ||
|
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| #undef EXTERN | ||
| #if defined(__cplusplus) | ||
| #define EXTERN extern "C" | ||
| extern "C" | ||
| { | ||
| #else | ||
| #define EXTERN extern | ||
| #endif | ||
|
|
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| /**************************************************************************** | ||
| * Public Function Prototypes | ||
| ****************************************************************************/ | ||
|
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| /**************************************************************************** | ||
| * Name: board_gnss_addon_initialize | ||
| * | ||
| * Description: | ||
| * Initialize CXD5610 GNSS i2c driver and register the CXD5610 GNSS device. | ||
| * | ||
| ****************************************************************************/ | ||
|
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| #if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_CXD5610_GNSS) | ||
| int board_gnss_addon_initialize(const char *devpath, int bus); | ||
| #endif | ||
|
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| #undef EXTERN | ||
| #if defined(__cplusplus) | ||
| } | ||
| #endif | ||
|
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| #endif /* __ASSEMBLY__ */ | ||
| #endif /* __BOARDS_ARM_CXD56XX_SPRESENSE_INCLUDE_CXD56_GNSS_ADDON_H */ |