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Diffstat (limited to 'components/external/espruino/src/jspin.c')
| -rw-r--r-- | components/external/espruino/src/jspin.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/components/external/espruino/src/jspin.c b/components/external/espruino/src/jspin.c new file mode 100644 index 0000000000..c345e615e8 --- /dev/null +++ b/components/external/espruino/src/jspin.c @@ -0,0 +1,150 @@ +/* + * This file is part of Espruino, a JavaScript interpreter for Microcontrollers + * + * Copyright (C) 2013 Gordon Williams <[email protected]> + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * ---------------------------------------------------------------------------- + * Utilities and definitions for handling Pins + * ---------------------------------------------------------------------------- + */ + +#include "jspin.h" +#include "jspininfo.h" // auto-generated + +bool jshIsPinValid(Pin pin) { + // Note, PIN_UNDEFINED is always > JSH_PIN_COUNT + return pin < JSH_PIN_COUNT && pinInfo[pin].port!=JSH_PORT_NONE; +} + + +Pin jshGetPinFromString(const char *s) { + // built in constants + + if (s[0]=='B' && s[1]=='T' && s[2]=='N') { +#ifdef BTN1_PININDEX + if (!s[3]) return BTN1_PININDEX; + if (s[3]=='1' && !s[4]) return BTN1_PININDEX; +#endif +#ifdef BTN2_PININDEX + if (s[3]=='2' && !s[4]) return BTN2_PININDEX; +#endif +#ifdef BTN3_PININDEX + if (s[3]=='3' && !s[4]) return BTN3_PININDEX; +#endif +#ifdef BTN4_PININDEX + if (s[3]=='4' && !s[4]) return BTN4_PININDEX; +#endif + } + if (s[0]=='L' && s[1]=='E' && s[2]=='D') { +#ifdef LED1_PININDEX + if (!s[3]) return LED1_PININDEX; + if (s[3]=='1' && !s[4]) return LED1_PININDEX; +#endif +#ifdef LED2_PININDEX + if (s[3]=='2' && !s[4]) return LED2_PININDEX; +#endif +#ifdef LED3_PININDEX + if (s[3]=='3' && !s[4]) return LED3_PININDEX; +#endif +#ifdef LED4_PININDEX + if (s[3]=='4' && !s[4]) return LED4_PININDEX; +#endif +#ifdef LED5_PININDEX + if (s[3]=='5' && !s[4]) return LED5_PININDEX; +#endif +#ifdef LED6_PININDEX + if (s[3]=='6' && !s[4]) return LED6_PININDEX; +#endif +#ifdef LED7_PININDEX + if (s[3]=='7' && !s[4]) return LED7_PININDEX; +#endif +#ifdef LED8_PININDEX + if (s[3]=='8' && !s[4]) return LED8_PININDEX; +#endif + } + + if ((s[0]>='A' && s[0]<='H') && s[1]) { // first 6 are analogs + int port = JSH_PORTA+s[0]-'A'; + Pin pin = 127; + if (!s[2] && (s[1]>='0' && s[1]<='9')) { // D0-D9 + pin = (Pin)(s[1]-'0'); + } else if (!s[3] && (s[1]>='1' && s[1]<='3' && s[2]>='0' && s[2]<='9')) { // D1X-D3X + pin = (Pin)((s[1]-'0')*10 + (s[2]-'0')); + } + if (port == JSH_PORTA) { + if (pin<JSH_PORTA_COUNT) return (Pin)(JSH_PORTA_OFFSET + pin); + } else if (port == JSH_PORTB) { + if (pin<JSH_PORTB_COUNT) return (Pin)(JSH_PORTB_OFFSET + pin); + } else if (port == JSH_PORTC) { + if (pin<JSH_PORTC_COUNT) return (Pin)(JSH_PORTC_OFFSET + pin); + } else if (port == JSH_PORTD) { + if (pin<JSH_PORTD_COUNT) return (Pin)(JSH_PORTD_OFFSET + pin); +#if JSH_PORTE_OFFSET!=-1 + } else if (port == JSH_PORTE) { + if (pin<JSH_PORTE_COUNT) return (Pin)(JSH_PORTE_OFFSET + pin); +#endif +#if JSH_PORTF_OFFSET!=-1 + } else if (port == JSH_PORTF) { + if (pin<JSH_PORTF_COUNT) return (Pin)(JSH_PORTF_OFFSET + pin); +#endif +#if JSH_PORTG_OFFSET!=-1 + } else if (port == JSH_PORTG) { + if (pin<JSH_PORTG_COUNT) return (Pin)(JSH_PORTG_OFFSET + pin); +#endif +#if JSH_PORTH_OFFSET!=-1 + } else if (port == JSH_PORTH) { + if (pin<JSH_PORTH_COUNT) return (Pin)(JSH_PORTH_OFFSET + pin); +#endif + } + } + + return PIN_UNDEFINED; +} + +/** Write the pin name to a string. String must have at least 8 characters (to be safe) */ +void jshGetPinString(char *result, Pin pin) { + result[0] = 0; // just in case + if ( +#if JSH_PORTA_OFFSET!=0 + pin>=JSH_PORTA_OFFSET && +#endif + pin<JSH_PORTA_OFFSET+JSH_PORTA_COUNT) { + result[0]='A'; + itoa(pin-JSH_PORTA_OFFSET,&result[1],10); + } else if (pin>=JSH_PORTB_OFFSET && pin<JSH_PORTB_OFFSET+JSH_PORTB_COUNT) { + result[0]='B'; + itoa(pin-JSH_PORTB_OFFSET,&result[1],10); + } else if (pin>=JSH_PORTC_OFFSET && pin<JSH_PORTC_OFFSET+JSH_PORTC_COUNT) { + result[0]='C'; + itoa(pin-JSH_PORTC_OFFSET,&result[1],10); + } else if (pin>=JSH_PORTD_OFFSET && pin<JSH_PORTD_OFFSET+JSH_PORTD_COUNT) { + result[0]='D'; + itoa(pin-JSH_PORTD_OFFSET,&result[1],10); +#if JSH_PORTE_OFFSET!=-1 + } else if (pin>=JSH_PORTE_OFFSET && pin<JSH_PORTE_OFFSET+JSH_PORTE_COUNT) { + result[0]='E'; + itoa(pin-JSH_PORTE_OFFSET,&result[1],10); +#endif +#if JSH_PORTF_OFFSET!=-1 + } else if (pin>=JSH_PORTF_OFFSET && pin<JSH_PORTF_OFFSET+JSH_PORTF_COUNT) { + result[0]='F'; + itoa(pin-JSH_PORTF_OFFSET,&result[1],10); +#endif +#if JSH_PORTG_OFFSET!=-1 + } else if (pin>=JSH_PORTG_OFFSET && pin<JSH_PORTG_OFFSET+JSH_PORTG_COUNT) { + result[0]='G'; + itoa(pin-JSH_PORTG_OFFSET,&result[1],10); +#endif +#if JSH_PORTH_OFFSET!=-1 + } else if (pin>=JSH_PORTH_OFFSET && pin<JSH_PORTH_OFFSET+JSH_PORTH_COUNT) { + result[0]='H'; + itoa(pin-JSH_PORTH_OFFSET,&result[1],10); +#endif + } else { + strncpy(result, "UNKNOWN", 8); + } +} |