boards: k210: Add initial gpio user space support
Signed-off-by: Matheus Castello <matheus@castello.eng.br>
This commit is contained in:
Matheus Castello
Masayuki Ishikawa
parent
4a7915e72b
commit
5c15fe6ec1
@ -55,6 +55,11 @@
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#define LED_ASSERTION 6 /* N/C */
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#define LED_PANIC 7 /* blink */
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/* GPIO pins used by the GPIO Subsystem */
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#define BOARD_NGPIOOUT 2 /* Amount of GPIO Output pins */
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#define BOARD_NGPIOINT 0 /* Amount of GPIO Input */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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@ -30,4 +30,8 @@ ifeq ($(CONFIG_ARCH_LEDS),y)
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CSRCS += k210_leds.c
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endif
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += k210_gpio.c
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endif
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include $(TOPDIR)/boards/Board.mk
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@ -33,6 +33,7 @@
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#include <nuttx/fs/fs.h>
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#include "k210.h"
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#include "maix-bit.h"
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/****************************************************************************
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* Public Functions
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@ -56,5 +57,14 @@ int k210_bringup(void)
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}
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#endif
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#ifdef CONFIG_DEV_GPIO
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ret = k210_gpio_init();
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize GPIO Driver: %d\n", ret);
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return ret;
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}
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#endif
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return ret;
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}
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173
boards/risc-v/k210/maix-bit/src/k210_gpio.c
Normal file
173
boards/risc-v/k210/maix-bit/src/k210_gpio.c
Normal file
@ -0,0 +1,173 @@
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/****************************************************************************
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* boards/risc-v/k210/maix-bit/src/k210_gpio.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <syslog.h>
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#include <assert.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/irq.h>
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#include <arch/irq.h>
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#include <nuttx/ioexpander/gpio.h>
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#include <arch/board/board.h>
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#include "k210_fpioa.h"
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#include "k210_gpiohs.h"
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#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Pin 1 and 2 are used for this example as GPIO outputs. */
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#define GPIO_OUT1 12
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#define GPIO_OUT2 13
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct k210gpio_dev_s
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{
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struct gpio_dev_s gpio;
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uint8_t id;
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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#if BOARD_NGPIOOUT > 0
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static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value);
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static int gpout_write(FAR struct gpio_dev_s *dev, bool value);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#if BOARD_NGPIOOUT > 0
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static const struct gpio_operations_s gpout_ops =
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{
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.go_read = gpout_read,
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.go_write = gpout_write,
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.go_attach = NULL,
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.go_enable = NULL,
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};
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/* This array maps the GPIO pins used as OUTPUT */
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static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] =
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{
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GPIO_OUT1, GPIO_OUT2
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};
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static struct k210gpio_dev_s g_gpout[BOARD_NGPIOOUT];
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: gpout_read
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****************************************************************************/
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#if BOARD_NGPIOOUT > 0
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static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value)
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{
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FAR struct k210gpio_dev_s *k210gpio =
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(FAR struct k210gpio_dev_s *)dev;
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DEBUGASSERT(k210gpio != NULL && value != NULL);
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DEBUGASSERT(k210gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Reading...\n");
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*value = (int) k210_gpiohs_get_value(k210gpio->id + 1);
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return OK;
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}
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/****************************************************************************
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* Name: gpout_write
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****************************************************************************/
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static int gpout_write(FAR struct gpio_dev_s *dev, bool value)
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{
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FAR struct k210gpio_dev_s *k210gpio =
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(FAR struct k210gpio_dev_s *)dev;
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DEBUGASSERT(k210gpio != NULL);
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DEBUGASSERT(k210gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Writing %d\n", (int)value);
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k210_gpiohs_set_value(k210gpio->id + 1, !value);
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return OK;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: k210_gpio_init
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****************************************************************************/
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int k210_gpio_init(void)
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{
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int i;
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int pincount = 0;
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#if BOARD_NGPIOOUT > 0
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for (i = 0; i < BOARD_NGPIOOUT; i++)
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{
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/* Setup and register the GPIO pin */
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g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
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g_gpout[i].gpio.gp_ops = &gpout_ops;
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g_gpout[i].id = i;
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gpio_pin_register(&g_gpout[i].gpio, pincount);
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/* Configure the pins that will be used as output */
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k210_fpioa_config(g_gpiooutputs[i],
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(K210_IO_FUNC_GPIOHS1 + i) | K210_IOFLAG_GPIOHS);
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k210_gpiohs_set_direction(i + 1, true);
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k210_gpiohs_set_value(i + 1, true);
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pincount++;
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}
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#endif
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return OK;
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}
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#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */
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@ -29,4 +29,8 @@
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int k210_bringup(void);
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#ifdef CONFIG_DEV_GPIO
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int k210_gpio_init(void);
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#endif
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#endif /* __BOARDS_RISCV_K210_MAIX_BIT_SRC_MAIX_BIT_H */
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