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280 lines
6.5 KiB
280 lines
6.5 KiB
/**
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* ANSI code parser callbacks that do the actual work.
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* Split from the parser itself for easier editing without
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* having to deal with Ragel.
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*/
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#include <esp8266.h>
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#include "ansi_parser_callbacks.h"
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#include "screen.h"
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#include "ansi_parser.h"
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#include "uart_driver.h"
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/**
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* Handle a received plain character
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*/
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void ICACHE_FLASH_ATTR
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apars_handle_plainchar(char c)
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{
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screen_putchar(c);
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}
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/**
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* Bad sequence received, show warning
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*/
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void apars_handle_badseq(void)
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{
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warn("Invalid escape sequence discarded.");
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}
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/**
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* \brief Handle fully received CSI ANSI sequence
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* \param leadchar - private range leading character, 0 if none
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* \param params - array of CSI_N_MAX ints holding the numeric arguments
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* \param keychar - the char terminating the sequence
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*/
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void ICACHE_FLASH_ATTR
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apars_handle_CSI(char leadchar, int *params, char keychar)
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{
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/*
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Implemented codes (from Wikipedia)
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CSI n A CUU – Cursor Up
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CSI n B CUD – Cursor Down
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CSI n C CUF – Cursor Forward
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CSI n D CUB – Cursor Back
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CSI n E CNL – Cursor Next Line
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CSI n F CPL – Cursor Previous Line
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CSI n G CHA – Cursor Horizontal Absolute
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CSI n ; m H CUP – Cursor Position
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CSI n J ED – Erase Display
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CSI n K EL – Erase in Line
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CSI n S SU – Scroll Up
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CSI n T SD – Scroll Down
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CSI n ; m f HVP – Horizontal and Vertical Position
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CSI n m SGR – Select Graphic Rendition (Implemented only some)
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CSI 6n DSR – Device Status Report
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CSI s SCP – Save Cursor Position
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CSI u RCP – Restore Cursor Position
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CSI ?25l DECTCEM Hides the cursor
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CSI ?25h DECTCEM Shows the cursor
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*/
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int n1 = params[0];
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int n2 = params[1];
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// int n3 = params[2];
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// defaults
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switch (keychar) {
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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case 'G':
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case 'S':
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case 'T':
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if (n1 == 0) n1 = 1;
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break;
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case 'H':
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case 'f':
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if (n1 == 0) n1 = 1;
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if (n2 == 0) n2 = 1;
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break;
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case 'J':
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case 'K':
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if (n1 > 2) n1 = 0;
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break;
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}
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switch (keychar) {
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// CUU CUD CUF CUB
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case 'A': screen_cursor_move(-n1, 0); break;
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case 'B': screen_cursor_move(n1, 0); break;
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case 'C': screen_cursor_move(0, n1); break;
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case 'D': screen_cursor_move(0, -n1); break;
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case 'E': // CNL
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screen_cursor_move(n1, 0);
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screen_cursor_set_x(0);
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break;
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case 'F': // CPL
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screen_cursor_move(-n1, 0);
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screen_cursor_set_x(0);
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break;
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// CHA
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case 'G':
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screen_cursor_set_x(n1 - 1); break; // 1-based
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// SU, SD
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case 'S': screen_scroll_up(n1); break;
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case 'T': screen_scroll_down(n1); break;
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// CUP,HVP
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case 'H':
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case 'f':
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screen_cursor_set(n1-1, n2-1); break; // 1-based
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case 'J': // ED
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if (n1 == 0) {
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screen_clear(CLEAR_TO_CURSOR);
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} else if (n1 == 1) {
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screen_clear(CLEAR_FROM_CURSOR);
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} else {
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screen_clear(CLEAR_ALL);
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screen_cursor_set(0, 0);
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}
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break;
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case 'K': // EL
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if (n1 == 0) {
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screen_clear_line(CLEAR_TO_CURSOR);
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} else if (n1 == 1) {
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screen_clear_line(CLEAR_FROM_CURSOR);
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} else {
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screen_clear_line(CLEAR_ALL);
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}
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break;
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// SCP, RCP
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case 's': screen_cursor_save(0); break;
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case 'u': screen_cursor_restore(0); break;
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case 'n':
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if (n1 == 6) {
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// Query cursor position
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char buf[20];
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int x, y;
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screen_cursor_get(&y, &x);
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sprintf(buf, "\033[%d;%dR", y+1, x+1);
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UART_WriteString(UART0, buf, UART_TIMEOUT_US);
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}
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else if (n1 == 5) {
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// Query device status - reply "Device is OK"
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UART_WriteString(UART0, "\033[0n", UART_TIMEOUT_US);
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}
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break;
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// DECTCEM cursor show hide
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case 'l':
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if (leadchar == '?' && n1 == 25) {
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screen_cursor_enable(0);
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}
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break;
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case 'h':
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if (leadchar == '?' && n1 == 25) {
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screen_cursor_enable(1);
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}
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break;
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case 'm': // SGR
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// iterate arguments
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for (int i = 0; i < CSI_N_MAX; i++) {
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int n = params[i];
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if (i == 0 && n == 0) { // reset SGR
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screen_set_fg(7);
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screen_set_bg(0);
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break; // cannot combine reset with others
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}
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else if (n >= 30 && n <= 37) screen_set_fg(n-30); // ANSI normal fg
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else if (n >= 40 && n <= 47) screen_set_bg(n-40); // ANSI normal bg
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else if (n == 39) screen_set_fg(7); // default fg
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else if (n == 49) screen_set_bg(0); // default bg
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else if (n == 7) screen_inverse(1); // inverse
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else if (n == 27) screen_inverse(0); // positive
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else if (n == 1) screen_set_bright_fg(); // ANSI bold = bright fg
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else if (n >= 90 && n <= 97) screen_set_fg(n-90+8); // AIX bright fg
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else if (n >= 100 && n <= 107) screen_set_bg(n-100+8); // AIX bright bg
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}
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break;
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}
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}
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void ICACHE_FLASH_ATTR apars_handle_saveCursorAttrs(void)
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{
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screen_cursor_save(1);
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}
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void ICACHE_FLASH_ATTR apars_handle_restoreCursorAttrs(void)
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{
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screen_cursor_restore(1);
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}
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/**
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* \brief Handle a request to reset the display device
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*/
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void ICACHE_FLASH_ATTR
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apars_handle_RESET_cmd(void)
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{
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// XXX maybe user wanted to reset the module instead?
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screen_reset();
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}
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/**
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* Handle a factory reset request
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*/
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void ICACHE_FLASH_ATTR
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apars_handle_OSC_FactoryReset(void)
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{
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info("OSC: Factory reset");
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// Send acknowledgement message to UART0
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// User is performing this manually, so we can just print it as string
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UART_WriteString(UART0, "\r\nFACTORY RESET\r\n", UART_TIMEOUT_US);
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// Disconnect from AP if connected
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int opmode = wifi_get_opmode();
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if (opmode != SOFTAP_MODE) {
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wifi_station_disconnect();
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}
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// Both must be enabled so we can manipulate their settings
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wifi_set_opmode(STATIONAP_MODE);
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// --- AP config ---
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struct softap_config apconf;
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wifi_softap_get_config(&apconf);
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apconf.authmode=AUTH_OPEN; // Disable access protection
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apconf.channel=1; // Reset channel; user may have set bad channel in the UI
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// generate unique AP name
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u8 mac[6];
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wifi_get_macaddr(SOFTAP_IF, mac);
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sprintf((char*)apconf.ssid, "TERM-%02X%02X%02X", mac[3], mac[4], mac[5]);
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apconf.ssid_len = (u8)strlen((char*)apconf.ssid);
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// --- Station ---
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struct station_config staconf;
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wifi_station_get_config(&staconf);
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// clear info about SSID
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staconf.ssid[0]=0;
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staconf.bssid_set=0;
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staconf.password[0]=0;
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wifi_softap_set_config(&apconf);
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wifi_station_set_config(&staconf);
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UART_WriteString(UART0, "Factory Reset complete, device reset.\r\n\r\n", UART_TIMEOUT_US);
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// Reboot to clean STA+AP mode with Channel 1 & reset AP SSID.
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system_restart();
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}
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/**
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* Handle a screen resize request
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*/
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void ICACHE_FLASH_ATTR
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apars_handle_OSC_SetScreenSize(int rows, int cols)
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{
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info("OSC: Set screen size to %d x %d", rows, cols);
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screen_resize(rows, cols);
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}
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