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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2021/03/05 15:36:24 UTC
[GitHub] [incubator-nuttx] yunkya2 opened a new pull request #2986: arm/rp2040: Add SPI driver support
yunkya2 opened a new pull request #2986:
URL: https://github.com/apache/incubator-nuttx/pull/2986
## Summary
Add SPI driver for Raspberry Pi Pico.
(DMA transfer is not supported yet.)
## Impact
rp2040 only
## Testing
New config `raspberrypi-pico:spisd` is added to test SD card access with SPI.
Read/Write access OK.
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[GitHub] [incubator-nuttx] acassis commented on a change in pull request #2986: arm/rp2040: Add SPI driver support
Posted by GitBox <gi...@apache.org>.
acassis commented on a change in pull request #2986:
URL: https://github.com/apache/incubator-nuttx/pull/2986#discussion_r588541697
##########
File path: arch/arm/src/rp2040/rp2040_spi.h
##########
@@ -0,0 +1,224 @@
+/****************************************************************************
+ * arch/arm/src/rp2040/rp2040_spi.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 __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+#define __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/spi/spi.h>
+#include "hardware/rp2040_spi.h"
+#ifdef CONFIG_RP2040_DMAC
+#include "rp2040_dmac.h"
+#endif
+
+#if defined(CONFIG_RP2040_SPI0) || defined(CONFIG_RP2040_SPI1)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* This header file defines interfaces to common SPI logic.
+ * To use this common SPI logic on your board:
+ *
+ * 1. Provide logic in rp2040_boardinitialize() to configure SPI chip select
+ * pins.
+ * 2. Provide rp2040_spi0/1select() and rp2040_spi0/1status() functions in
+ * your board-specific logic. These functions will perform chip selection
+ * and status operations using GPIOs in the way your board is configured.
+ * 3. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
+ * rp2040_spi0/1cmddata() functions in your board-specific logic. These
+ * functions will perform cmd/data selection operations using GPIOs in the
+ * way your board is configured.
+ * 4. Your low level board initialization logic should call
+ * rp2040_spibus_initialize.
+ * 5. The handle returned by rp2040_spibus_initialize() may then be used to
+ * bind the SPI driver to higher level logic
+ * (e.g., calling mmcsd_spislotinitialize(), for example, will bind the
+ * SPI driver to the SPI MMC/SD driver).
+ */
+
+#define RP2040_SPI_DMAC_CHTYPE_TX (0)
+#define RP2040_SPI_DMAC_CHTYPE_RX (1)
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_spibus_initialize
+ *
+ * Description:
+ * Initialize the selected SPI port
+ *
+ * Input Parameter:
+ * port - Port number
+ *
+ * Returned Value:
+ * Valid SPI device structure reference on success; a NULL on failure
+ *
+ ****************************************************************************/
+
+FAR struct spi_dev_s *rp2040_spibus_initialize(int port);
+
+/****************************************************************************
+ * Name: rp2040_spi_dmaconfig
+ *
+ * Description:
+ * Enable DMA configuration.
+ *
+ * Input Parameter:
+ * port - Port number
+ * chtype - Channel type(TX or RX)
+ * handle - DMA channel handle
+ * conf - DMA configuration
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_DMAC
+void rp2040_spi_dmaconfig(int port, int chtype, DMA_HANDLE handle,
+ FAR dma_config_t *conf);
+#endif
+
+/****************************************************************************
+ * Name: rp2040_spiXselect, rp2040_spiXstatus, and rp2040_spiXcmddata
+ *
+ * Description:
+ * These functions must be provided in your board-specific logic.
+ * The rp2040_spi0/1select functions will perform chip selection and the
+ * rp2040_spi0/1status will perform status operations using GPIOs in
+ * the way your board is configured.
+ *
+ * If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, then
+ * rp2040_spi0/1cmddata must also be provided.
+ * This functions performs cmd/data selection operations using GPIOs in
+ * the way your board is configured.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPI0
+void rp2040_spi0select(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool selected);
+uint8_t rp2040_spi0status(FAR struct spi_dev_s *dev,
+ uint32_t devid);
+#ifdef CONFIG_SPI_CMDDATA
+int rp2040_spi0cmddata(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool cmd);
Review comment:
uint32_t and bool should start aligned below the FAR
##########
File path: arch/arm/src/rp2040/rp2040_spi.h
##########
@@ -0,0 +1,224 @@
+/****************************************************************************
+ * arch/arm/src/rp2040/rp2040_spi.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 __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+#define __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/spi/spi.h>
+#include "hardware/rp2040_spi.h"
+#ifdef CONFIG_RP2040_DMAC
+#include "rp2040_dmac.h"
+#endif
+
+#if defined(CONFIG_RP2040_SPI0) || defined(CONFIG_RP2040_SPI1)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* This header file defines interfaces to common SPI logic.
+ * To use this common SPI logic on your board:
+ *
+ * 1. Provide logic in rp2040_boardinitialize() to configure SPI chip select
+ * pins.
+ * 2. Provide rp2040_spi0/1select() and rp2040_spi0/1status() functions in
+ * your board-specific logic. These functions will perform chip selection
+ * and status operations using GPIOs in the way your board is configured.
+ * 3. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
+ * rp2040_spi0/1cmddata() functions in your board-specific logic. These
+ * functions will perform cmd/data selection operations using GPIOs in the
+ * way your board is configured.
+ * 4. Your low level board initialization logic should call
+ * rp2040_spibus_initialize.
+ * 5. The handle returned by rp2040_spibus_initialize() may then be used to
+ * bind the SPI driver to higher level logic
+ * (e.g., calling mmcsd_spislotinitialize(), for example, will bind the
+ * SPI driver to the SPI MMC/SD driver).
+ */
+
+#define RP2040_SPI_DMAC_CHTYPE_TX (0)
+#define RP2040_SPI_DMAC_CHTYPE_RX (1)
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_spibus_initialize
+ *
+ * Description:
+ * Initialize the selected SPI port
+ *
+ * Input Parameter:
+ * port - Port number
+ *
+ * Returned Value:
+ * Valid SPI device structure reference on success; a NULL on failure
+ *
+ ****************************************************************************/
+
+FAR struct spi_dev_s *rp2040_spibus_initialize(int port);
+
+/****************************************************************************
+ * Name: rp2040_spi_dmaconfig
+ *
+ * Description:
+ * Enable DMA configuration.
+ *
+ * Input Parameter:
+ * port - Port number
+ * chtype - Channel type(TX or RX)
+ * handle - DMA channel handle
+ * conf - DMA configuration
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_DMAC
+void rp2040_spi_dmaconfig(int port, int chtype, DMA_HANDLE handle,
+ FAR dma_config_t *conf);
+#endif
+
+/****************************************************************************
+ * Name: rp2040_spiXselect, rp2040_spiXstatus, and rp2040_spiXcmddata
+ *
+ * Description:
+ * These functions must be provided in your board-specific logic.
+ * The rp2040_spi0/1select functions will perform chip selection and the
+ * rp2040_spi0/1status will perform status operations using GPIOs in
+ * the way your board is configured.
+ *
+ * If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, then
+ * rp2040_spi0/1cmddata must also be provided.
+ * This functions performs cmd/data selection operations using GPIOs in
+ * the way your board is configured.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPI0
+void rp2040_spi0select(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool selected);
+uint8_t rp2040_spi0status(FAR struct spi_dev_s *dev,
+ uint32_t devid);
+#ifdef CONFIG_SPI_CMDDATA
+int rp2040_spi0cmddata(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool cmd);
+#endif
+#endif
+
+#ifdef CONFIG_RP2040_SPI1
+void rp2040_spi1select(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool selected);
+uint8_t rp2040_spi1status(FAR struct spi_dev_s *dev,
+ uint32_t devid);
+#ifdef CONFIG_SPI_CMDDATA
+int rp2040_spi1cmddata(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool cmd);
Review comment:
uint32_t and bool should start aligned below the FAR
##########
File path: arch/arm/src/rp2040/rp2040_spi.h
##########
@@ -0,0 +1,224 @@
+/****************************************************************************
+ * arch/arm/src/rp2040/rp2040_spi.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 __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+#define __ARCH_ARM_SRC_RP2040_RP2040_SPI_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/spi/spi.h>
+#include "hardware/rp2040_spi.h"
+#ifdef CONFIG_RP2040_DMAC
+#include "rp2040_dmac.h"
+#endif
+
+#if defined(CONFIG_RP2040_SPI0) || defined(CONFIG_RP2040_SPI1)
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* This header file defines interfaces to common SPI logic.
+ * To use this common SPI logic on your board:
+ *
+ * 1. Provide logic in rp2040_boardinitialize() to configure SPI chip select
+ * pins.
+ * 2. Provide rp2040_spi0/1select() and rp2040_spi0/1status() functions in
+ * your board-specific logic. These functions will perform chip selection
+ * and status operations using GPIOs in the way your board is configured.
+ * 3. If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, provide
+ * rp2040_spi0/1cmddata() functions in your board-specific logic. These
+ * functions will perform cmd/data selection operations using GPIOs in the
+ * way your board is configured.
+ * 4. Your low level board initialization logic should call
+ * rp2040_spibus_initialize.
+ * 5. The handle returned by rp2040_spibus_initialize() may then be used to
+ * bind the SPI driver to higher level logic
+ * (e.g., calling mmcsd_spislotinitialize(), for example, will bind the
+ * SPI driver to the SPI MMC/SD driver).
+ */
+
+#define RP2040_SPI_DMAC_CHTYPE_TX (0)
+#define RP2040_SPI_DMAC_CHTYPE_RX (1)
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rp2040_spibus_initialize
+ *
+ * Description:
+ * Initialize the selected SPI port
+ *
+ * Input Parameter:
+ * port - Port number
+ *
+ * Returned Value:
+ * Valid SPI device structure reference on success; a NULL on failure
+ *
+ ****************************************************************************/
+
+FAR struct spi_dev_s *rp2040_spibus_initialize(int port);
+
+/****************************************************************************
+ * Name: rp2040_spi_dmaconfig
+ *
+ * Description:
+ * Enable DMA configuration.
+ *
+ * Input Parameter:
+ * port - Port number
+ * chtype - Channel type(TX or RX)
+ * handle - DMA channel handle
+ * conf - DMA configuration
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_DMAC
+void rp2040_spi_dmaconfig(int port, int chtype, DMA_HANDLE handle,
+ FAR dma_config_t *conf);
+#endif
+
+/****************************************************************************
+ * Name: rp2040_spiXselect, rp2040_spiXstatus, and rp2040_spiXcmddata
+ *
+ * Description:
+ * These functions must be provided in your board-specific logic.
+ * The rp2040_spi0/1select functions will perform chip selection and the
+ * rp2040_spi0/1status will perform status operations using GPIOs in
+ * the way your board is configured.
+ *
+ * If CONFIG_SPI_CMDDATA is defined in the NuttX configuration, then
+ * rp2040_spi0/1cmddata must also be provided.
+ * This functions performs cmd/data selection operations using GPIOs in
+ * the way your board is configured.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_RP2040_SPI0
+void rp2040_spi0select(FAR struct spi_dev_s *dev,
+ uint32_t devid,
+ bool selected);
Review comment:
uint32_t and bool should start aligned below the FAR
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[GitHub] [incubator-nuttx] acassis commented on a change in pull request #2986: arm/rp2040: Add SPI driver support
Posted by GitBox <gi...@apache.org>.
acassis commented on a change in pull request #2986:
URL: https://github.com/apache/incubator-nuttx/pull/2986#discussion_r588534325
##########
File path: arch/arm/src/rp2040/rp2040_gpio.h
##########
@@ -50,12 +66,44 @@ extern "C"
#define EXTERN extern
#endif
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+static inline void rp2040_gpio_put(uint32_t gpio, int set)
+{
+ uint32_t value = 1 << gpio;
+
+ if (set)
Review comment:
you missed
{
}
It is required, like in the MISRA C
##########
File path: arch/arm/src/rp2040/rp2040_gpio.h
##########
@@ -50,12 +66,44 @@ extern "C"
#define EXTERN extern
#endif
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+static inline void rp2040_gpio_put(uint32_t gpio, int set)
+{
+ uint32_t value = 1 << gpio;
+
+ if (set)
+ putreg32(value, RP2040_SIO_GPIO_OUT_SET);
+ else
+ putreg32(value, RP2040_SIO_GPIO_OUT_CLR);
+}
+
+static inline bool rp2040_gpio_get(uint32_t gpio)
+{
+ uint32_t value = 1 << gpio;
+
+ return (getreg32(RP2040_SIO_GPIO_IN) & value) != 0;
+}
+
+static inline void rp2040_gpio_setdir(uint32_t gpio, int out)
+{
+ uint32_t value = 1 << gpio;
+
+ if (out)
+ putreg32(value, RP2040_SIO_GPIO_OE_SET);
+ else
+ putreg32(value, RP2040_SIO_GPIO_OE_CLR);
+}
Review comment:
Ditto
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[GitHub] [incubator-nuttx] masayuki2009 commented on a change in pull request #2986: arm/rp2040: Add SPI driver support
Posted by GitBox <gi...@apache.org>.
masayuki2009 commented on a change in pull request #2986:
URL: https://github.com/apache/incubator-nuttx/pull/2986#discussion_r589163552
##########
File path: boards/arm/rp2040/common/src/rp2040_spisd.c
##########
@@ -0,0 +1,134 @@
+/****************************************************************************
+ * boards/arm/rp2040/common/src/rp2040_spisd.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 <debug.h>
+#include <nuttx/mmcsd.h>
+#include <nuttx/board.h>
+#include <nuttx/fs/fs.h>
+
+#include "rp2040_spi.h"
+#include "rp2040_gpio.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_RP2040_SPISD_SLOT_NO
+# define CONFIG_RP2040_SPISD_SLOT_NO 0
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_spisd_initialize
+ *
+ * Description:
+ * Initialize the SPI-based SD card.
+ *
+ ****************************************************************************/
+
+int board_spisd_initialize(int minor, int bus)
+{
+ int ret;
+ FAR struct spi_dev_s *spi;
+
+ /* Initialize spi deivce */
+
+ spi = rp2040_spibus_initialize(bus);
+ if (!spi)
+ {
+ ferr("ERROR: Failed to initialize spi%d.\n", bus);
+ return -ENODEV;
+ }
+
+ /* Pull up RX */
+
+#ifdef CONFIG_RP2040_SPI0
+ if (bus == 0)
+ {
+ rp2040_gpio_set_pulls(CONFIG_RP2040_SPI0_GPIO, true, false);
+ }
+#endif
+
+#ifdef CONFIG_RP2040_SPI1
+ if (bus == 1)
+ {
+ rp2040_gpio_set_pulls(CONFIG_RP2040_SPI1_GPIO, true, false);
+ }
+#endif
+
+ /* Get the SPI driver instance for the SD chip select */
+
+ finfo("Initializing SPI for the MMC/SD slot\n");
+
+ ret = mmcsd_spislotinitialize(minor, CONFIG_RP2040_SPISD_SLOT_NO, spi);
+ if (ret < 0)
+ {
+ ferr("ERROR: Failed to bind SPI device to MMC/SD slot %d: %d\n",
+ CONFIG_RP2040_SPISD_SLOT_NO, ret);
+ return ret;
+ }
+
+ /* Mount filesystem */
+
+ ret = nx_mount("/dev/mmcsd0", "/mnt/sd0", "vfat", 0, NULL);
+ if (ret < 0)
+ {
+ _err("ERROR: Failed to mount the SDCARD. %d\n", ret);
+ }
+
+ return OK;
+}
+
+/****************************************************************************
+ * Name: board_spisd_status
+ *
+ * Description:
+ * Get the status whether SD Card is present or not.
+ * This function is called only from cxd56_spi.c.
Review comment:
cxd56_spi.c -> rp2040_spi.c ?
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[GitHub] [incubator-nuttx] masayuki2009 merged pull request #2986: arm/rp2040: Add SPI driver support
Posted by GitBox <gi...@apache.org>.
masayuki2009 merged pull request #2986:
URL: https://github.com/apache/incubator-nuttx/pull/2986
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