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>
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <device.h>
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#include <drivers/sensor.h>
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#include <sys/printk.h>
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#include <sys/util.h>
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#ifdef CONFIG_GROVE_LCD_RGB
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#include <display/grove_lcd.h>
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#include <stdio.h>
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#include <string.h>
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#endif
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struct channel_info {
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int chan;
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char *dev_name;
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};
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/* change device names if you want to use different sensors */
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static struct channel_info info[] = {
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{ SENSOR_CHAN_AMBIENT_TEMP, "TH02" },
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{ SENSOR_CHAN_HUMIDITY, "TH02" },
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};
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void main(void)
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{
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const struct device *dev[ARRAY_SIZE(info)];
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struct sensor_value val[ARRAY_SIZE(info)];
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unsigned int i;
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int rc;
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for (i = 0U; i < ARRAY_SIZE(info); i++) {
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dev[i] = device_get_binding(info[i].dev_name);
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if (dev[i] == NULL) {
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printk("Failed to get \"%s\" device\n",
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info[i].dev_name);
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return;
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}
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}
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#ifdef CONFIG_GROVE_LCD_RGB
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const struct device *glcd;
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glcd = device_get_binding(GROVE_LCD_NAME);
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if (glcd == NULL) {
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printk("Failed to get Grove LCD\n");
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return;
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}
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/* configure LCD */
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glcd_function_set(glcd, GLCD_FS_ROWS_2 | GLCD_FS_DOT_SIZE_LITTLE |
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GLCD_FS_8BIT_MODE);
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glcd_display_state_set(glcd, GLCD_DS_DISPLAY_ON);
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#endif
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while (1) {
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/* fetch sensor samples */
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for (i = 0U; i < ARRAY_SIZE(info); i++) {
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rc = sensor_sample_fetch(dev[i]);
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if (rc) {
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printk("Failed to fetch sample for device %s (%d)\n",
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info[i].dev_name, rc);
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}
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}
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for (i = 0U; i < ARRAY_SIZE(info); i++) {
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rc = sensor_channel_get(dev[i], info[i].chan, &val[i]);
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if (rc) {
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printk("Failed to get data for device %s (%d)\n",
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info[i].dev_name, rc);
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continue;
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}
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}
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#ifdef CONFIG_GROVE_LCD_RGB
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char row[16];
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/* clear LCD */
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(void)memset(row, ' ', sizeof(row));
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glcd_cursor_pos_set(glcd, 0, 0);
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glcd_print(glcd, row, sizeof(row));
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glcd_cursor_pos_set(glcd, 0, 1);
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glcd_print(glcd, row, sizeof(row));
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/* display temperature on LCD */
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glcd_cursor_pos_set(glcd, 0, 0);
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sprintf(row, "T:%.1f%cC", sensor_value_to_double(val),
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223 /* degree symbol */);
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glcd_print(glcd, row, strlen(row));
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/* display himidity on LCD */
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glcd_cursor_pos_set(glcd, 17 - strlen(row), 0);
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sprintf(row, "RH:%.0f%c", sensor_value_to_double(val + 1),
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37 /* percent symbol */);
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glcd_print(glcd, row, strlen(row));
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#endif
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k_sleep(K_MSEC(2000));
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}
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}
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