mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-14 08:35:20 +00:00
e18fcbba5a
Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/*
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* Copyright (c) 2019 Synopsys, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <device.h>
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#include <drivers/pinmux.h>
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#include <soc.h>
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#define creg_gpio_mux_reg (*(volatile uint32_t *)CREG_GPIO_MUX_BASE_ADDR)
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void _arc_sync(void)
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{
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__asm__ volatile("sync");
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}
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static int pinmux_hsdk_set(const struct device *dev, uint32_t pin,
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uint32_t func)
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{
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if (func >= HSDK_PINMUX_FUNS || pin >= HSDK_PINMUX_SELS)
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return -EINVAL;
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creg_gpio_mux_reg &= ~(0x07U << (pin * 3));
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creg_gpio_mux_reg |= (func << (pin * 3));
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_arc_sync();
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return 0;
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}
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static int pinmux_hsdk_get(const struct device *dev, uint32_t pin,
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uint32_t *func)
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{
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if (pin >= HSDK_PINMUX_SELS || func == NULL)
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return -EINVAL;
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*func = (creg_gpio_mux_reg >> (pin * 3)) & 0x07U;
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return 0;
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}
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static int pinmux_hsdk_pullup(const struct device *dev, uint32_t pin,
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uint8_t func)
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{
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return -ENOTSUP;
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}
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static int pinmux_hsdk_input(const struct device *dev, uint32_t pin,
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uint8_t func)
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{
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return -ENOTSUP;
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}
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static int pinmux_hsdk_init(const struct device *dev)
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{
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ARG_UNUSED(dev);
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return 0;
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}
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static const struct pinmux_driver_api pinmux_hsdk_driver_api = {
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.set = pinmux_hsdk_set,
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.get = pinmux_hsdk_get,
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.pullup = pinmux_hsdk_pullup,
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.input = pinmux_hsdk_input,
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};
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DEVICE_AND_API_INIT(pinmux_hsdk, CONFIG_PINMUX_NAME,
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&pinmux_hsdk_init, NULL, NULL,
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PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
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&pinmux_hsdk_driver_api);
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