4edb93adde
Some of the structures, notably 'cmd', in the lib console stuff are a little too generically named and have collided with some other code so prefix the names a bit more cleanly with console_ The change is largely mechanical, and folks with out of tree code can easily switch by renaming: cmd -> console_cmd cmd_args -> console_cmd_args cmd_block -> console_cmd_block console_cmd -> console_cmd_func Apologies if this breaks you but it should be pretty easy to fix.
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* Copyright (c) 2015 Christopher Anderson
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*
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* Use of this source code is governed by a MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT
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*/
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#include <dev/gpio.h>
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#include <lk/console_cmd.h>
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#include <string.h>
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#include <stdio.h>
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struct flag_labels {
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unsigned id;
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const char *label;
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};
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struct flag_labels gpio_flag_labels[] = {
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{ GPIO_INPUT, "input" },
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{ GPIO_OUTPUT, "output" },
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{ GPIO_LEVEL, "level" },
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{ GPIO_EDGE, "edge" },
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{ GPIO_RISING, "rising" },
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{ GPIO_FALLING, "falling" },
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{ GPIO_HIGH, "high" },
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{ GPIO_LOW, "low" },
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{ GPIO_PULLUP, "pullup" },
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{ GPIO_PULLDOWN, "pulldown" },
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};
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static unsigned int get_flag_value(const char *str) {
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for (unsigned i = 0; i < countof(gpio_flag_labels); i++) {
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if (!strcmp(str, gpio_flag_labels[i].label)) {
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return gpio_flag_labels[i].id;
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}
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}
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return 0;
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}
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/* Ideally this would be generic, but different platforms have varying manners of handling gpio
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* numbers / banks etc. Nvidia uses A-F, ST uses # and ports, Xilinx uses #s and banks. Etc.
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*/
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static int cmd_gpio(int argc, const console_cmd_args *argv) {
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if (argc == 4 && !strcmp(argv[1].str,"set")) {
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unsigned int gpio = argv[2].u;
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unsigned int value = argv[3].u;
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gpio_set(gpio, value);
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} else if (argc == 3 && !strcmp(argv[1].str,"get")) {
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unsigned int gpio = argv[2].u;
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printf("gpio %u: %d\n", gpio, gpio_get(gpio));
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} else if (argc >= 3 && !strcmp(argv[1].str,"cfg")) {
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unsigned int gpio = argv[2].u;
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unsigned int flags = 0;
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for (int i = 3; i < argc; i++) {
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flags |= get_flag_value(argv[i].str);
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}
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gpio_config(gpio, flags);
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} else {
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printf("gpio set <gpio #> <value>\n");
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printf("gpio get <gpio #>\n");
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printf("gpio cfg <gpio #> [flags: ");
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for (unsigned int i = 0; i < countof(gpio_flag_labels); i++) {
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printf("%s ", gpio_flag_labels[i].label);
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}
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putchar(']');
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putchar('\n');
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}
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return 0;
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}
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STATIC_COMMAND_START
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STATIC_COMMAND("gpio", "commands for manipulating system gpios", &cmd_gpio)
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STATIC_COMMAND_END(gpio);
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