229 lines
6.7 KiB
C
229 lines
6.7 KiB
C
#include "cli_command_gpio.h"
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#include <furi.h>
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#include <furi_hal.h>
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#include <lib/toolbox/args.h>
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typedef struct {
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const GpioPin* pin;
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const char* name;
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const bool debug;
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} CliCommandGpio;
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const CliCommandGpio cli_command_gpio_pins[] = {
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{.pin = &gpio_ext_pc0, .name = "PC0", .debug = false},
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{.pin = &gpio_ext_pc1, .name = "PC1", .debug = false},
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{.pin = &gpio_ext_pc3, .name = "PC3", .debug = false},
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{.pin = &gpio_ext_pb2, .name = "PB2", .debug = false},
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{.pin = &gpio_ext_pb3, .name = "PB3", .debug = false},
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{.pin = &gpio_ext_pa4, .name = "PA4", .debug = false},
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{.pin = &gpio_ext_pa6, .name = "PA6", .debug = false},
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{.pin = &gpio_ext_pa7, .name = "PA7", .debug = false},
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/* Dangerous pins, may damage hardware */
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{.pin = &gpio_infrared_rx, .name = "PA0", .debug = true},
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{.pin = &gpio_usart_rx, .name = "PB7", .debug = true},
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{.pin = &gpio_speaker, .name = "PB8", .debug = true},
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{.pin = &gpio_infrared_tx, .name = "PB9", .debug = true},
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};
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void cli_command_gpio_print_usage() {
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printf("Usage:\r\n");
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printf("gpio <cmd> <args>\r\n");
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printf("Cmd list:\r\n");
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printf("\tmode <pin_name> <0|1>\t - Set gpio mode: 0 - input, 1 - output\r\n");
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printf("\tset <pin_name> <0|1>\t - Set gpio value\r\n");
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printf("\tread <pin_name>\t - Read gpio value\r\n");
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}
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static bool pin_name_to_int(string_t pin_name, size_t* result) {
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bool found = false;
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bool debug = furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug);
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for(size_t i = 0; i < COUNT_OF(cli_command_gpio_pins); i++) {
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if(!string_cmp(pin_name, cli_command_gpio_pins[i].name)) {
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if(!cli_command_gpio_pins[i].debug || (cli_command_gpio_pins[i].debug && debug)) {
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*result = i;
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found = true;
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break;
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}
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}
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}
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return found;
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}
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static void gpio_print_pins(void) {
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printf("Wrong pin name. Available pins: ");
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bool debug = furi_hal_rtc_is_flag_set(FuriHalRtcFlagDebug);
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for(size_t i = 0; i < COUNT_OF(cli_command_gpio_pins); i++) {
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if(!cli_command_gpio_pins[i].debug || (cli_command_gpio_pins[i].debug && debug)) {
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printf("%s ", cli_command_gpio_pins[i].name);
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}
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}
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}
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typedef enum { OK, ERR_CMD_SYNTAX, ERR_PIN, ERR_VALUE } GpioParseError;
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static GpioParseError gpio_command_parse(string_t args, size_t* pin_num, uint8_t* value) {
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string_t pin_name;
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string_init(pin_name);
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size_t ws = string_search_char(args, ' ');
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if(ws == STRING_FAILURE) {
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return ERR_CMD_SYNTAX;
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}
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string_set_n(pin_name, args, 0, ws);
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string_right(args, ws);
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string_strim(args);
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if(!pin_name_to_int(pin_name, pin_num)) {
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string_clear(pin_name);
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return ERR_PIN;
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}
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string_clear(pin_name);
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if(!string_cmp(args, "0")) {
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*value = 0;
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} else if(!string_cmp(args, "1")) {
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*value = 1;
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} else {
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return ERR_VALUE;
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}
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return OK;
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}
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void cli_command_gpio_mode(Cli* cli, string_t args, void* context) {
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UNUSED(cli);
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UNUSED(context);
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size_t num = 0;
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uint8_t value = 255;
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GpioParseError err = gpio_command_parse(args, &num, &value);
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if(ERR_CMD_SYNTAX == err) {
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cli_print_usage("gpio mode", "<pin_name> <0|1>", string_get_cstr(args));
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return;
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} else if(ERR_PIN == err) {
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gpio_print_pins();
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return;
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} else if(ERR_VALUE == err) {
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printf("Value is invalid. Enter 1 for input or 0 for output");
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return;
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}
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if(cli_command_gpio_pins[num].debug) {
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printf(
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"Changeing this pin mode may damage hardware. Are you sure you want to continue? (y/n)?\r\n");
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char c = cli_getc(cli);
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if(c != 'y' && c != 'Y') {
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printf("Cancelled.\r\n");
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return;
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}
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}
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if(value == 1) { // output
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furi_hal_gpio_write(cli_command_gpio_pins[num].pin, false);
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furi_hal_gpio_init_simple(cli_command_gpio_pins[num].pin, GpioModeOutputPushPull);
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printf("Pin %s is now an output (low)", cli_command_gpio_pins[num].name);
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} else { // input
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furi_hal_gpio_init_simple(cli_command_gpio_pins[num].pin, GpioModeInput);
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printf("Pin %s is now an input", cli_command_gpio_pins[num].name);
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}
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}
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void cli_command_gpio_read(Cli* cli, string_t args, void* context) {
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UNUSED(cli);
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UNUSED(context);
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size_t num = 0;
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if(!pin_name_to_int(args, &num)) {
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gpio_print_pins();
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return;
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}
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if(LL_GPIO_MODE_INPUT !=
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LL_GPIO_GetPinMode(
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cli_command_gpio_pins[num].pin->port, cli_command_gpio_pins[num].pin->pin)) {
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printf("Err: pin %s is not set as an input.", cli_command_gpio_pins[num].name);
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return;
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}
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uint8_t val = !!furi_hal_gpio_read(cli_command_gpio_pins[num].pin);
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printf("Pin %s <= %u", cli_command_gpio_pins[num].name, val);
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}
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void cli_command_gpio_set(Cli* cli, string_t args, void* context) {
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UNUSED(context);
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size_t num = 0;
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uint8_t value = 0;
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GpioParseError err = gpio_command_parse(args, &num, &value);
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if(ERR_CMD_SYNTAX == err) {
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cli_print_usage("gpio set", "<pin_name> <0|1>", string_get_cstr(args));
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return;
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} else if(ERR_PIN == err) {
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gpio_print_pins();
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return;
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} else if(ERR_VALUE == err) {
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printf("Value is invalid. Enter 1 for high or 0 for low");
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return;
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}
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if(LL_GPIO_MODE_OUTPUT !=
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LL_GPIO_GetPinMode(
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cli_command_gpio_pins[num].pin->port, cli_command_gpio_pins[num].pin->pin)) {
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printf("Err: pin %s is not set as an output.", cli_command_gpio_pins[num].name);
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return;
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}
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// Extra check if debug pins used
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if(cli_command_gpio_pins[num].debug) {
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printf(
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"Setting this pin may damage hardware. Are you sure you want to continue? (y/n)?\r\n");
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char c = cli_getc(cli);
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if(c != 'y' && c != 'Y') {
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printf("Cancelled.\r\n");
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return;
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}
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}
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furi_hal_gpio_write(cli_command_gpio_pins[num].pin, !!value);
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printf("Pin %s => %u", cli_command_gpio_pins[num].name, !!value);
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}
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void cli_command_gpio(Cli* cli, string_t args, void* context) {
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string_t cmd;
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string_init(cmd);
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do {
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if(!args_read_string_and_trim(args, cmd)) {
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cli_command_gpio_print_usage();
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break;
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}
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if(string_cmp_str(cmd, "mode") == 0) {
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cli_command_gpio_mode(cli, args, context);
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break;
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}
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if(string_cmp_str(cmd, "set") == 0) {
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cli_command_gpio_set(cli, args, context);
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break;
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}
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if(string_cmp_str(cmd, "read") == 0) {
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cli_command_gpio_read(cli, args, context);
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break;
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}
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cli_command_gpio_print_usage();
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} while(false);
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string_clear(cmd);
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}
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