b39423e0e2
This commit references modem_pin() and modem_shell() modem_pin(): use new gpio api The existing pin driver does not respect gpio configuration in device tree for active high / low This commit allows for the device tree to determine the active logic level. modem_shell(): use correct string length The ms_send macro uses iface.write() to send a string. iface.write() requires the length of the string not the size of the string. This commit corrects the string length. drivers: ublox-sara-r4: fix vint polling This eliminates the implication that the enable and disable values can be something other than 1 and 0, and fixes the code so it won't enter an infinite loop if the GPIO read returns an error. Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
70 lines
1.3 KiB
C
70 lines
1.3 KiB
C
/** @file
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* @brief Modem pin setup for modem context driver
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*
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* GPIO-based pin handling for the modem context driver
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*/
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/*
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* Copyright (c) 2019 Foundries.io
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/types.h>
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#include <device.h>
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#include <drivers/gpio.h>
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#include "modem_context.h"
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int modem_pin_read(struct modem_context *ctx, u32_t pin)
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{
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if (pin >= ctx->pins_len) {
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return -ENODEV;
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}
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return gpio_pin_get(ctx->pins[pin].gpio_port_dev,
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ctx->pins[pin].pin);
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}
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int modem_pin_write(struct modem_context *ctx, u32_t pin, u32_t value)
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{
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if (pin >= ctx->pins_len) {
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return -ENODEV;
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}
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return gpio_pin_set(ctx->pins[pin].gpio_port_dev,
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ctx->pins[pin].pin, value);
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}
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int modem_pin_config(struct modem_context *ctx, u32_t pin, bool enable)
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{
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if (pin >= ctx->pins_len) {
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return -ENODEV;
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}
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return gpio_pin_configure(ctx->pins[pin].gpio_port_dev,
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ctx->pins[pin].pin,
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enable ? ctx->pins[pin].init_flags :
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GPIO_INPUT);
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}
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int modem_pin_init(struct modem_context *ctx)
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{
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int i, ret;
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/* setup port devices and pin directions */
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for (i = 0; i < ctx->pins_len; i++) {
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ctx->pins[i].gpio_port_dev =
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device_get_binding(ctx->pins[i].dev_name);
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if (!ctx->pins[i].gpio_port_dev) {
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return -ENODEV;
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}
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ret = modem_pin_config(ctx, i, true);
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if (ret < 0) {
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return ret;
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}
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}
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return 0;
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}
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