mirror of
https://github.com/apache/nuttx.git
synced 2026-06-06 08:36:24 +08:00
feature: driver: Add a Linux SPI into simulator.
N/A When SIM_SPI is valid, a specified Linux SPI device ‘spidevN.P’(N is bus number and P is CS number) is attached to nuttx simulator, shown as 'spi0' under /dev. One may type spi command (need SPITOOL valid) in NSH to control the Linux SPI and exchange data, other devices such sensors can use it to debug in simulator on a Ubuntu PC. Note that a USB<>SPI module (e.g. CH341A/B) should be plugged in to achieve Linux SPI ports. Change-Id: I275b2c2bbf6d14bcdf514c89efb9a2264d69e9a3 Signed-off-by: liucheng5 <liucheng5@xiaomi.com>
This commit is contained in:
liucheng5
@@ -562,6 +562,31 @@ endchoice
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endif
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config SIM_SPI
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bool "Simulated SPI port"
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default n
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select SPI
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---help---
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Build in support for simulated spi port
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if SIM_SPI
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choice
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prompt "Simulated SPI Type"
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default SIM_SPI_LINUX
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config SIM_SPI_LINUX
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bool "Linux SPI Character Dev"
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depends on HOST_LINUX
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---help---
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Attach a Linux SPI port via the character device
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interface. To achieve a SPI port, it is recommended
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to use a USB<>SPI device such as CH341A/B.
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endchoice
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endif
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config SIM_UART_NUMBER
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int "The number of tty ports on sim platform, range is 0~4"
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default 0
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@@ -176,6 +176,10 @@ ifeq ($(CONFIG_SIM_I2CBUS_LINUX),y)
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HOSTSRCS += up_i2cbuslinux.c
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endif
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ifeq ($(CONFIG_SIM_SPI_LINUX),y)
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HOSTSRCS += up_spilinux.c
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endif
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ifeq ($(CONFIG_RPTUN),y)
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CSRCS += up_rptun.c
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endif
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@@ -352,6 +352,13 @@ struct i2c_master_s *sim_i2cbus_initialize(int bus);
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int sim_i2cbus_uninitialize(struct i2c_master_s *dev);
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#endif
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/* up_spi*.c ****************************************************************/
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#ifdef CONFIG_SIM_SPI
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struct spi_dev_s *sim_spi_initialize(const char *filename);
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int sim_spi_uninitialize(struct spi_dev_s *dev);
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#endif
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/* Debug ********************************************************************/
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#ifdef CONFIG_STACK_COLORATION
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@@ -0,0 +1,159 @@
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/****************************************************************************
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* arch/sim/src/sim/up_spi.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef _ARCH_SIM_SRC_SIM_SPI_H_
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#define _ARCH_SIM_SRC_SIM_SPI_H_
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#ifdef __SIM__
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#include "config.h"
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#endif
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define HWFEAT_CS_INACTIVE (1 << 1) /* Force CS inactive after transfer. */
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#define HWFEAT_CS_ACTIVE (1 << 2) /* Force CS active after transfer. */
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#define HWFEAT_LSBFIRST (1 << 4) /* 1 for LSB 1st, default 0 for MSB 1st*/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* The types below (spi_dev_s, spi_ops_s, spi_mode_e, spi_hwfeatures_t and
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* spi_mediachange_t) are the same as in nuttx/spi/spi.h.
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*/
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enum spi_mode_e
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{
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SPIDEV_MODE0 = 0, /* CPOL=0 CHPHA=0 */
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SPIDEV_MODE1, /* CPOL=0 CHPHA=1 */
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SPIDEV_MODE2, /* CPOL=1 CHPHA=0 */
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SPIDEV_MODE3, /* CPOL=1 CHPHA=1 */
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SPIDEV_MODETI, /* CPOL=0 CPHA=1 TI Synchronous Serial Frame Format */
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};
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#ifdef CONFIG_SPI_HWFEATURES
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typedef uint8_t spi_hwfeatures_t;
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#endif
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typedef void (*spi_mediachange_t)(void *arg);
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struct spi_dev_s;
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struct spi_ops_s
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{
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int (*lock)(struct spi_dev_s *dev, bool lock);
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void (*select)(struct spi_dev_s *dev, uint32_t devid,
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bool selected);
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uint32_t (*setfrequency)(struct spi_dev_s *dev,
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uint32_t frequency);
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#ifdef CONFIG_SPI_CS_DELAY_CONTROL
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int (*setdelay)(struct spi_dev_s *dev, uint32_t a,
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uint32_t b, uint32_t c);
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#endif
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void (*setmode)(struct spi_dev_s *dev, enum spi_mode_e mode);
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void (*setbits)(struct spi_dev_s *dev, int nbits);
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#ifdef CONFIG_SPI_HWFEATURES
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int (*hwfeatures)(struct spi_dev_s *dev,
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spi_hwfeatures_t features);
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#endif
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uint8_t (*status)(struct spi_dev_s *dev, uint32_t devid);
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#ifdef CONFIG_SPI_CMDDATA
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int (*cmddata)(struct spi_dev_s *dev, uint32_t devid,
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bool cmd);
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#endif
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uint32_t (*send)(struct spi_dev_s *dev, uint32_t wd);
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#ifdef CONFIG_SPI_EXCHANGE
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void (*exchange)(struct spi_dev_s *dev,
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const void *txbuffer, void *rxbuffer,
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size_t nwords);
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#else
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void (*sndblock)(struct spi_dev_s *dev,
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const void *buffer, size_t nwords);
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void (*recvblock)(struct spi_dev_s *dev, void *buffer,
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size_t nwords);
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#endif
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#ifdef CONFIG_SPI_TRIGGER
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int (*trigger)(struct spi_dev_s *dev);
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#endif
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int (*registercallback)(struct spi_dev_s *dev,
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spi_mediachange_t callback, void *arg);
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};
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struct spi_dev_s
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{
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const struct spi_ops_s *ops;
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};
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/* NuttX SPI transaction struct (ref: spi_transfer.h). */
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struct spi_trans_s
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{
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/* SPI attributes for unique to this transaction */
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bool deselect; /* De-select after transfer */
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#ifdef CONFIG_SPI_CMDDATA
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bool cmd; /* true=command; false=data */
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#endif
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#ifdef CONFIG_SPI_HWFEATURES
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spi_hwfeatures_t hwfeat; /* H/W features to enable on this transfer */
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#endif
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useconds_t delay; /* Microsecond delay after transfer */
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/* These describe the single data transfer */
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size_t nwords; /* Number of words in transfer */
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const void *txbuffer; /* Source buffer for TX transfer */
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void *rxbuffer; /* Sink buffer for RX transfer */
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};
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/* NuttX SPI sequence of transactions (ref: spi_transfer.h). */
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struct spi_sequence_s
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{
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/* Properties that are fixed throughout the transfer */
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uint32_t dev; /* See enum spi_devtype_e */
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uint8_t mode; /* See enum spi_mode_e */
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uint8_t nbits; /* Number of bits */
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uint8_t ntrans; /* Number of transactions */
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uint32_t frequency; /* SPI frequency (Hz) */
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#ifdef CONFIG_SPI_CS_DELAY_CONTROL
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uint32_t a; /* Arguments to setdelay() */
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uint32_t b;
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uint32_t c;
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#endif
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/* A pointer to the list of transfers to be be performed. */
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struct spi_trans_s *trans;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#endif /* _ARCH_SIM_SRC_SIM_SPI_H_ */
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File diff suppressed because it is too large
Load Diff
@@ -58,7 +58,6 @@ config SIM_WTGAHRS2_UARTN
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---help---
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We can select the number accoding to which SIM_UARTX_NAME is uesd to sensor.
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This range is 0-4.
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endif
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config SIM_I2CBUS_ID
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int "I2C host bus ID to attach to simulator"
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@@ -67,3 +66,13 @@ config SIM_I2CBUS_ID
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---help---
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This is the bus identifier that should be used by the host implementation to
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attach to the simulator driver.
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config SIM_SPIDEV_NAME
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string "the name of SPI host dev to attach to simulator"
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default "/dev/spidev0.0"
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depends on SIM_SPI
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---help---
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This is the name of the SPI device on the host implementation to
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attach to the simulator driver.
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endif
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@@ -36,6 +36,7 @@
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#include <nuttx/fs/nxffs.h>
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#include <nuttx/fs/hostfs_rpmsg.h>
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#include <nuttx/i2c/i2c_master.h>
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#include <nuttx/spi/spi_transfer.h>
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#include <nuttx/rc/lirc_dev.h>
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#include <nuttx/rc/dummy.h>
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#include <nuttx/sensors/fakesensor.h>
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@@ -101,6 +102,9 @@ int sim_bringup(void)
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#ifdef CONFIG_MPU60X0_I2C
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FAR struct mpu_config_s *mpu_config;
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#endif
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#ifdef CONFIG_SIM_SPI
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FAR struct spi_dev_s *spidev;
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#endif
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int ret = OK;
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@@ -405,6 +409,26 @@ int sim_bringup(void)
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#endif
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#endif
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#ifdef CONFIG_SIM_SPI
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spidev = sim_spi_initialize(CONFIG_SIM_SPIDEV_NAME);
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if (spidev == NULL)
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{
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syslog(LOG_ERR, "ERROR: sim_spi_initialize failed.\n");
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}
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#ifdef CONFIG_SYSTEM_SPITOOL
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else
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{
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ret = spi_register(spidev, 0);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to register SPI%d driver: %d\n",
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0, ret);
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sim_spi_uninitialize(spidev);
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}
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}
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#endif /* CONFIG_SYSTEM_SPITOOL */
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#endif /* CONFIG_SIM_SPI */
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#if defined(CONFIG_INPUT_BUTTONS_LOWER) && defined(CONFIG_SIM_BUTTONS)
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ret = btn_lower_initialize("/dev/buttons");
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if (ret < 0)
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