rp2040: Add lower layer driver for WIZnet W5500
Courtesy of Adam Comley Signed-off-by: Michael Jung <michael.jung@secore.ly>
This commit is contained in:
Michael Jung
Xiang Xiao
parent
a70c0a90a7
commit
9c705828bc
@ -579,3 +579,35 @@ config RP2040_ENC28J60_RESET_GPIO
|
|||||||
range -1 29
|
range -1 29
|
||||||
|
|
||||||
endif # ENC28J60
|
endif # ENC28J60
|
||||||
|
|
||||||
|
if NET_W5500
|
||||||
|
|
||||||
|
config RP2040_W5500_SPI_CH
|
||||||
|
int "W5500 SPI channel number"
|
||||||
|
default 0
|
||||||
|
range 0 1
|
||||||
|
---help---
|
||||||
|
SPI device for W5500 chip.
|
||||||
|
|
||||||
|
config RP2040_W5500_SPI_FREQ
|
||||||
|
int "W5500 SPI frequency (kHz)"
|
||||||
|
default 40000
|
||||||
|
range 100 40000
|
||||||
|
---help---
|
||||||
|
SPI frequency for W5500 chip.
|
||||||
|
|
||||||
|
config RP2040_W5500_RST_GPIO
|
||||||
|
int "W5500 reset GPIO pin"
|
||||||
|
default 20
|
||||||
|
range 0 29
|
||||||
|
---help---
|
||||||
|
RP2040 pin number that connects to W5500 Reset
|
||||||
|
|
||||||
|
config RP2040_W5500_INT_GPIO
|
||||||
|
int "W5500 interrupt GPIO pin"
|
||||||
|
default 21
|
||||||
|
range 0 29
|
||||||
|
---help---
|
||||||
|
RP2040 pin number that connects to W5500 Interrupt
|
||||||
|
|
||||||
|
endif # NET_W5500
|
||||||
|
|||||||
@ -95,6 +95,10 @@ ifeq ($(CONFIG_BOARDCTL_UNIQUEID),y)
|
|||||||
CSRCS += rp2040_uniqueid.c
|
CSRCS += rp2040_uniqueid.c
|
||||||
endif
|
endif
|
||||||
|
|
||||||
|
ifeq ($(CONFIG_NET_W5500),y)
|
||||||
|
CSRCS += rp2040_w5500.c
|
||||||
|
endif
|
||||||
|
|
||||||
DEPPATH += --dep-path src
|
DEPPATH += --dep-path src
|
||||||
VPATH += :src
|
VPATH += :src
|
||||||
CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
|
CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
|
||||||
|
|||||||
@ -181,4 +181,17 @@ void rp2040_common_initialize(void)
|
|||||||
rp2040_gpio_setdir(CONFIG_RP2040_SPI1_CS_GPIO, true);
|
rp2040_gpio_setdir(CONFIG_RP2040_SPI1_CS_GPIO, true);
|
||||||
rp2040_gpio_put(CONFIG_RP2040_SPI1_CS_GPIO, true);
|
rp2040_gpio_put(CONFIG_RP2040_SPI1_CS_GPIO, true);
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
#ifdef CONFIG_NET_W5500
|
||||||
|
/* W5500 Reset output */
|
||||||
|
|
||||||
|
rp2040_gpio_setdir(CONFIG_RP2040_W5500_RST_GPIO, true);
|
||||||
|
rp2040_gpio_put(CONFIG_RP2040_W5500_RST_GPIO, false);
|
||||||
|
rp2040_gpio_set_function(CONFIG_RP2040_W5500_RST_GPIO,
|
||||||
|
RP2040_GPIO_FUNC_SIO);
|
||||||
|
|
||||||
|
/* W5500 Interrupt input */
|
||||||
|
|
||||||
|
rp2040_gpio_init(CONFIG_RP2040_W5500_INT_GPIO);
|
||||||
|
#endif
|
||||||
}
|
}
|
||||||
|
|||||||
209
boards/arm/rp2040/common/src/rp2040_w5500.c
Normal file
209
boards/arm/rp2040/common/src/rp2040_w5500.c
Normal file
@ -0,0 +1,209 @@
|
|||||||
|
/****************************************************************************
|
||||||
|
* boards/arm/rp2040/common/src/rp2040_w5500.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 <stdint.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <assert.h>
|
||||||
|
#include <debug.h>
|
||||||
|
|
||||||
|
#include <nuttx/spi/spi.h>
|
||||||
|
#include <nuttx/net/w5500.h>
|
||||||
|
|
||||||
|
#include "rp2040_spi.h"
|
||||||
|
#include "rp2040_gpio.h"
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Pre-processor Definitions
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/* Sanity Check *************************************************************/
|
||||||
|
|
||||||
|
#if (CONFIG_RP2040_W5500_SPI_CH == 0) && !defined(CONFIG_RP2040_SPI0)
|
||||||
|
# error "W5500 configured to use SPI0, but SPI0 is not enabled"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if (CONFIG_RP2040_W5500_SPI_CH == 1) && !defined(CONFIG_RP2040_SPI1)
|
||||||
|
# error "W5500 configured to use SPI1, but SPI1 is not enabled"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* SPI Assumptions **********************************************************/
|
||||||
|
|
||||||
|
#define W5500_DEVNO 0 /* Only one W5500 */
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Private Types
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
struct rp2040_lower_s
|
||||||
|
{
|
||||||
|
const struct w5500_lower_s lower; /* Low-level MCU interface */
|
||||||
|
xcpt_t handler; /* W5500 interrupt handler */
|
||||||
|
void *arg; /* Argument that accompanies IRQ */
|
||||||
|
};
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Private Function Prototypes
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static int rp2040_attach(const struct w5500_lower_s *lower, xcpt_t handler,
|
||||||
|
void *arg);
|
||||||
|
static void rp2040_enable(const struct w5500_lower_s *lower, bool enable);
|
||||||
|
static void rp2040_reset(const struct w5500_lower_s *lower, bool reset);
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Private Data
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static struct rp2040_lower_s g_enclower =
|
||||||
|
{
|
||||||
|
.lower =
|
||||||
|
{
|
||||||
|
.frequency = (CONFIG_RP2040_W5500_SPI_FREQ * 1000),
|
||||||
|
.spidevid = 0,
|
||||||
|
.mode = SPIDEV_MODE0,
|
||||||
|
.attach = rp2040_attach,
|
||||||
|
.enable = rp2040_enable,
|
||||||
|
.reset = rp2040_reset,
|
||||||
|
},
|
||||||
|
.handler = NULL,
|
||||||
|
.arg = NULL
|
||||||
|
};
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Private Functions
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: rp2040_attach
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Attaches the interrupt handler to the GPIO.
|
||||||
|
*
|
||||||
|
* Input Parameters:
|
||||||
|
* lower - W5500 lower half
|
||||||
|
* handler - The handler function
|
||||||
|
* arg - Argument to pass to handler
|
||||||
|
*
|
||||||
|
* Returned Value:
|
||||||
|
* Zero (OK) is returned on success.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static int rp2040_attach(const struct w5500_lower_s *lower,
|
||||||
|
xcpt_t handler,
|
||||||
|
void *arg)
|
||||||
|
{
|
||||||
|
struct rp2040_lower_s *priv = (struct rp2040_lower_s *)lower;
|
||||||
|
|
||||||
|
priv->handler = handler;
|
||||||
|
priv->arg = arg;
|
||||||
|
rp2040_gpio_irq_attach(CONFIG_RP2040_W5500_INT_GPIO,
|
||||||
|
RP2040_GPIO_INTR_LEVEL_LOW,
|
||||||
|
priv->handler, priv->arg);
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: rp2040_enable
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Enables the W5500 interrupt handler.
|
||||||
|
*
|
||||||
|
* Input Parameters:
|
||||||
|
* lower - W5500 lower half
|
||||||
|
* enable - true to enable, false to disable
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static void rp2040_enable(const struct w5500_lower_s *lower, bool enable)
|
||||||
|
{
|
||||||
|
struct rp2040_lower_s *priv = (struct rp2040_lower_s *)lower;
|
||||||
|
|
||||||
|
DEBUGASSERT(priv->handler);
|
||||||
|
if (enable)
|
||||||
|
{
|
||||||
|
rp2040_gpio_enable_irq(CONFIG_RP2040_W5500_INT_GPIO);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
rp2040_gpio_disable_irq(CONFIG_RP2040_W5500_INT_GPIO);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: rp2040_reset
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Brings the W5500 in or out of reset.
|
||||||
|
*
|
||||||
|
* Input Parameters:
|
||||||
|
* lower - W5500 lower half
|
||||||
|
* reset - true to reset, false to enable
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static void rp2040_reset(const struct w5500_lower_s *lower, bool reset)
|
||||||
|
{
|
||||||
|
rp2040_gpio_put(CONFIG_RP2040_W5500_RST_GPIO, !reset);
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: arm_netinitialize
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Initializes the SPI and W5500 drivers.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
void arm_netinitialize(void)
|
||||||
|
{
|
||||||
|
struct spi_dev_s *spi;
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
spi = rp2040_spibus_initialize(CONFIG_RP2040_W5500_SPI_CH);
|
||||||
|
if (!spi)
|
||||||
|
{
|
||||||
|
nerr("ERROR: Failed to initialize SPI port %d\n",
|
||||||
|
CONFIG_RP2040_W5500_SPI_CH);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = w5500_initialize(spi, &g_enclower.lower, W5500_DEVNO);
|
||||||
|
if (ret < 0)
|
||||||
|
{
|
||||||
|
nerr("ERROR: Failed to bind SPI%d W5500 device %d: %d\n",
|
||||||
|
CONFIG_RP2040_W5500_SPI_CH, W5500_DEVNO, ret);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
ninfo("Bound SPI%d to W5500 device %d\n",
|
||||||
|
CONFIG_RP2040_W5500_SPI_CH, W5500_DEVNO);
|
||||||
|
}
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user