mirror of
https://github.com/MarlinFirmware/Marlin.git
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265 lines
10 KiB
C
265 lines
10 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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#include <Arduino.h>
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#ifndef NUM_DIGITAL_PINS
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// Only in ST's Arduino core (STM32duino, STM32Core)
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#error "Expected NUM_DIGITAL_PINS not found"
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#endif
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/**
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* Life gets complicated if you want an easy to use 'M43 I' output (in port/pin order)
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* because the variants in this platform do not always define all the I/O port/pins
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* that a CPU has.
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*
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* VARIABLES:
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* Ard_num - Arduino pin number - defined by the platform. It is used by digitalRead and
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* digitalWrite commands and by M42.
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* - does not contain port/pin info
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* - is not in port/pin order
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* - typically a variant will only assign Ard_num to port/pins that are actually used
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* Index - M43 counter - only used to get Ard_num
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* x - a parameter/argument used to search the pin_array to try to find a signal name
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* associated with a Ard_num
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* Port_pin - port number and pin number for use with CPU registers and printing reports
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*
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* Since M43 uses digitalRead and digitalWrite commands, only the Port_pins with an Ard_num
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* are accessed and/or displayed.
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*
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* Three arrays are used.
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*
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* digitalPin[] is provided by the platform. It consists of the Port_pin numbers in
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* Arduino pin number order.
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*
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* pin_array is a structure generated by the pins/pinsDebug.h header file. It is generated by
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* the preprocessor. Only the signals associated with enabled options are in this table.
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* It contains:
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* - name of the signal
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* - the Ard_num assigned by the pins_YOUR_BOARD.h file using the platform defines.
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* EXAMPLE: "#define KILL_PIN PB1" results in Ard_num of 57. 57 is then used as the
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* argument to digitalPinToPinName(IO) to get the Port_pin number
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* - if it is a digital or analog signal. PWMs are considered digital here.
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*
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* pin_xref is a structure generated by this header file. It is generated by the
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* preprocessor. It is in port/pin order. It contains just the port/pin numbers defined by the
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* platform for this variant.
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* - Ard_num
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* - printable version of Port_pin
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*
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* Routines with an "x" as a parameter/argument are used to search the pin_array to try to
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* find a signal name associated with a port/pin.
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*
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* NOTE - the Arduino pin number is what is used by the M42 command, NOT the port/pin for that
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* signal. The Arduino pin number is listed by the M43 I command.
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*/
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////////////////////////////////////////////////////////
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//
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// make a list of the Arduino pin numbers in the Port/Pin order
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//
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#define _PIN_ADD_2(NAME_ALPHA, ARDUINO_NUM) { {NAME_ALPHA}, ARDUINO_NUM },
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#define _PIN_ADD(NAME_ALPHA, ARDUINO_NUM) { NAME_ALPHA, ARDUINO_NUM },
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#define PIN_ADD(NAME) _PIN_ADD(#NAME, NAME)
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typedef struct {
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char Port_pin_alpha[5];
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pin_t Ard_num;
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} XrefInfo;
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const XrefInfo pin_xref[] PROGMEM = {
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#include "pins_Xref.h"
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};
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////////////////////////////////////////////////////////////
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#define MODE_PIN_INPUT 0 // Input mode (reset state)
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#define MODE_PIN_OUTPUT 1 // General purpose output mode
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#define MODE_PIN_ALT 2 // Alternate function mode
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#define MODE_PIN_ANALOG 3 // Analog mode
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#define PIN_NUM(P) (P & 0x000F)
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#define PIN_NUM_ALPHA_LEFT(P) (((P & 0x000F) < 10) ? ('0' + (P & 0x000F)) : '1')
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#define PIN_NUM_ALPHA_RIGHT(P) (((P & 0x000F) > 9) ? ('0' + (P & 0x000F) - 10) : 0 )
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#define PORT_NUM(P) ((P >> 4) & 0x0007)
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#define PORT_ALPHA(P) ('A' + (P >> 4))
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/**
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* Translation of routines & variables used by pinsDebug.h
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*/
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#define NUMBER_PINS_TOTAL NUM_DIGITAL_PINS
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#define VALID_PIN(ANUM) ((ANUM) >= 0 && (ANUM) < NUMBER_PINS_TOTAL)
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#define digitalRead_mod(Ard_num) extDigitalRead(Ard_num) // must use Arduino pin numbers when doing reads
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#define PRINT_PIN(Q)
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#define PRINT_PORT(ANUM) port_print(ANUM)
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#define DIGITAL_PIN_TO_ANALOG_PIN(ANUM) -1 // will report analog pin number in the print port routine
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#define GET_PIN_MAP_PIN_M43(Index) pin_xref[Index].Ard_num
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// x is a variable used to search pin_array
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#define GET_ARRAY_IS_DIGITAL(x) ((bool) pin_array[x].is_digital)
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#define GET_ARRAY_PIN(x) ((pin_t) pin_array[x].pin)
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#define PRINT_ARRAY_NAME(x) do{ sprintf_P(buffer, PSTR("%-" STRINGIFY(MAX_NAME_LENGTH) "s"), pin_array[x].name); SERIAL_ECHO(buffer); }while(0)
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#define MULTI_NAME_PAD 33 // space needed to be pretty if not first name assigned to a pin
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#ifndef M43_NEVER_TOUCH
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#define _M43_NEVER_TOUCH(Index) (Index >= 9 && Index <= 12) // SERIAL/USB pins: PA9(TX) PA10(RX) PA11(USB_DM) PA12(USB_DP)
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#ifdef KILL_PIN
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#define M43_NEVER_TOUCH(Index) m43_never_touch(Index)
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bool m43_never_touch(const pin_t Index) {
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static pin_t M43_kill_index = -1;
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if (M43_kill_index < 0)
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for (M43_kill_index = 0; M43_kill_index < NUMBER_PINS_TOTAL; M43_kill_index++)
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if (KILL_PIN == GET_PIN_MAP_PIN_M43(M43_kill_index)) break;
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return _M43_NEVER_TOUCH(Index) || Index == M43_kill_index; // KILL_PIN and SERIAL/USB
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}
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#else
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#define M43_NEVER_TOUCH(Index) _M43_NEVER_TOUCH(Index)
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#endif
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#endif
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uint8_t get_pin_mode(const pin_t Ard_num) {
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const PinName dp = digitalPinToPinName(Ard_num);
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uint32_t ll_pin = STM_LL_GPIO_PIN(dp);
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GPIO_TypeDef *port = get_GPIO_Port(STM_PORT(dp));
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uint32_t mode = LL_GPIO_GetPinMode(port, ll_pin);
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switch (mode) {
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case LL_GPIO_MODE_ANALOG: return MODE_PIN_ANALOG;
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case LL_GPIO_MODE_INPUT: return MODE_PIN_INPUT;
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case LL_GPIO_MODE_OUTPUT: return MODE_PIN_OUTPUT;
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case LL_GPIO_MODE_ALTERNATE: return MODE_PIN_ALT;
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TERN_(STM32F1xx, case LL_GPIO_MODE_FLOATING:)
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default: return 0;
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}
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}
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bool GET_PINMODE(const pin_t Ard_num) {
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const uint8_t pin_mode = get_pin_mode(Ard_num);
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return pin_mode == MODE_PIN_OUTPUT || pin_mode == MODE_PIN_ALT; // assume all alt definitions are PWM
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}
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int8_t digital_pin_to_analog_pin(pin_t Ard_num) {
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Ard_num -= NUM_ANALOG_FIRST;
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return (Ard_num >= 0 && Ard_num < NUM_ANALOG_INPUTS) ? Ard_num : -1;
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}
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bool IS_ANALOG(const pin_t Ard_num) {
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return get_pin_mode(Ard_num) == MODE_PIN_ANALOG;
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}
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bool is_digital(const pin_t x) {
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const uint8_t pin_mode = get_pin_mode(pin_array[x].pin);
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return pin_mode == MODE_PIN_INPUT || pin_mode == MODE_PIN_OUTPUT;
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}
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void port_print(const pin_t Ard_num) {
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char buffer[16];
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pin_t Index;
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for (Index = 0; Index < NUMBER_PINS_TOTAL; Index++)
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if (Ard_num == GET_PIN_MAP_PIN_M43(Index)) break;
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const char * ppa = pin_xref[Index].Port_pin_alpha;
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sprintf_P(buffer, PSTR("%s"), ppa);
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SERIAL_ECHO(buffer);
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if (ppa[3] == '\0') SERIAL_CHAR(' ');
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// print analog pin number
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const int8_t Port_pin = digital_pin_to_analog_pin(Ard_num);
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if (Port_pin >= 0) {
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sprintf_P(buffer, PSTR(" (A%d) "), Port_pin);
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SERIAL_ECHO(buffer);
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if (Port_pin < 10) SERIAL_CHAR(' ');
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}
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else
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SERIAL_ECHO_SP(7);
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// Print number to be used with M42
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sprintf_P(buffer, PSTR(" M42 P%d "), Ard_num);
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SERIAL_ECHO(buffer);
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if (Ard_num < 10) SERIAL_CHAR(' ');
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if (Ard_num < 100) SERIAL_CHAR(' ');
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}
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bool pwm_status(const pin_t Ard_num) {
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return get_pin_mode(Ard_num) == MODE_PIN_ALT;
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}
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void pwm_details(const pin_t Ard_num) {
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#ifndef STM32F1xx
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if (pwm_status(Ard_num)) {
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uint32_t alt_all = 0;
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const PinName dp = digitalPinToPinName(Ard_num);
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pin_t pin_number = uint8_t(PIN_NUM(dp));
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const bool over_7 = pin_number >= 8;
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const uint8_t ind = over_7 ? 1 : 0;
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switch (PORT_ALPHA(dp)) { // get alt function
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case 'A' : alt_all = GPIOA->AFR[ind]; break;
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case 'B' : alt_all = GPIOB->AFR[ind]; break;
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case 'C' : alt_all = GPIOC->AFR[ind]; break;
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case 'D' : alt_all = GPIOD->AFR[ind]; break;
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#ifdef PE_0
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case 'E' : alt_all = GPIOE->AFR[ind]; break;
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#elif defined (PF_0)
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case 'F' : alt_all = GPIOF->AFR[ind]; break;
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#elif defined (PG_0)
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case 'G' : alt_all = GPIOG->AFR[ind]; break;
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#elif defined (PH_0)
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case 'H' : alt_all = GPIOH->AFR[ind]; break;
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#elif defined (PI_0)
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case 'I' : alt_all = GPIOI->AFR[ind]; break;
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#elif defined (PJ_0)
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case 'J' : alt_all = GPIOJ->AFR[ind]; break;
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#elif defined (PK_0)
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case 'K' : alt_all = GPIOK->AFR[ind]; break;
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#elif defined (PL_0)
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case 'L' : alt_all = GPIOL->AFR[ind]; break;
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#endif
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}
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if (over_7) pin_number -= 8;
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uint8_t alt_func = (alt_all >> (4 * pin_number)) & 0x0F;
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SERIAL_ECHOPAIR("Alt Function: ", alt_func);
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if (alt_func < 10) SERIAL_CHAR(' ');
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SERIAL_ECHOPGM(" - ");
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switch (alt_func) {
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case 0 : SERIAL_ECHOPGM("system (misc. I/O)"); break;
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case 1 : SERIAL_ECHOPGM("TIM1/TIM2 (probably PWM)"); break;
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case 2 : SERIAL_ECHOPGM("TIM3..5 (probably PWM)"); break;
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case 3 : SERIAL_ECHOPGM("TIM8..11 (probably PWM)"); break;
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case 4 : SERIAL_ECHOPGM("I2C1..3"); break;
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case 5 : SERIAL_ECHOPGM("SPI1/SPI2"); break;
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case 6 : SERIAL_ECHOPGM("SPI3"); break;
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case 7 : SERIAL_ECHOPGM("USART1..3"); break;
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case 8 : SERIAL_ECHOPGM("USART4..6"); break;
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case 9 : SERIAL_ECHOPGM("CAN1/CAN2, TIM12..14 (probably PWM)"); break;
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case 10 : SERIAL_ECHOPGM("OTG"); break;
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case 11 : SERIAL_ECHOPGM("ETH"); break;
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case 12 : SERIAL_ECHOPGM("FSMC, SDIO, OTG"); break;
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case 13 : SERIAL_ECHOPGM("DCMI"); break;
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case 14 : SERIAL_ECHOPGM("unused (shouldn't see this)"); break;
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case 15 : SERIAL_ECHOPGM("EVENTOUT"); break;
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}
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}
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#else
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// TODO: F1 doesn't support changing pins function, so we need to check the function of the PIN and if it's enabled
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#endif
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} // pwm_details
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