2 * wiringpi setup [MODE]
3 * MODE is one of -g -1 -p, as for gpio(1)
4 * optional, if not called is equivalent to saying just "setup"
5 * may not be called after any other wiringpi use in whole program
6 * there is no way to un-setup
8 * Most of the rest are very similar to gpio(1):
9 * boardRev => integer (see wiringPi.h)
10 * boardId => [list MODEL REV MEM MAKER OVERVOLTED]
13 * in out pwm pwmTone clock up down tri off
14 * alt0 alt1 alt2 alt3 alt4 alt5
26 /* ---8<--- end of documentation comment --8<-- */
29 * wiringpi.c - wiringPi binding for Tcl
30 * Copyright 2016 Ian Jackson
32 * This program is free software; you can redistribute it and/or
33 * modify it under the terms of the GNU General Public License as
34 * published by the Free Software Foundation; either version 2 of the
35 * License, or (at your option) any later version.
37 * This program is distributed in the hope that it will be useful, but
38 * WITHOUT ANY WARRANTY; without even the implied warranty of
39 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
40 * General Public License for more details.
42 * You should have received a copy of the GNU General Public License
43 * along with this library; if not, see <http://www.gnu.org/licenses/>.
50 #include "chiark_tcl_wiringpi.h"
54 /*---------- important types and forward declarations ----------*/
56 static int ensure_setup(void) {
60 /*---------- operations ----------*/
64 rc = ensure_setup(); \
65 if (rc) return rc; else
67 #define CHECK_RANGE(val, min, max, what, VAL) do{ \
69 return cht_staticerr(ip, what " too small" \
70 " (must be at least" #min ")", \
71 "WIRINGPI RANGE " VAL " MIN " #min); \
73 return cht_staticerr(ip, what " too large" \
74 " (must be at most" #max ")", \
75 "WIRINGPI RANGE " VAL " MAX " #max); \
78 int cht_do_wiringpitcl_pwmc(ClientData cd, Tcl_Interp *ip, int divider) {
80 CHECK_RANGE(divider,1,4095,"divider for pwmc","DIVIDER");
85 int cht_do_wiringpitcl_boardId(ClientData cd, Tcl_Interp *ip,
97 for (i=0; i<N; i++) objl[i]= Tcl_NewIntObj(ints[i]);
98 *result= Tcl_NewListObj(N,objl);
103 int cht_do_wiringpitcl_boardRev(ClientData cd, Tcl_Interp *ip, int *result) {
105 *result = piBoardRev();
109 /*---------- families operations ----------*/
111 int cht_do_wiringpitcl_aread(ClientData cd, Tcl_Interp *ip, int pin, int *result) {
113 *result = analogRead(pin);
117 #define SIMPLE_WRITER_OP(op, min, max, wpicall) \
118 int cht_do_wiringpitcl_##op(ClientData cd, Tcl_Interp *ip, \
119 int pin, int val) { \
121 CHECK_RANGE(val,min,max, "value for " #op, "VAL"); \
126 SIMPLE_WRITER_OP(pwm, INT_MIN,INT_MAX, pwmWrite)
127 SIMPLE_WRITER_OP(awrite, INT_MIN,INT_MAX, analogWrite)
128 SIMPLE_WRITER_OP(write, 0, 1, digitalWrite)
129 SIMPLE_WRITER_OP(pwmTone, INT_MIN,INT_MAX, pwmToneWrite)
130 SIMPLE_WRITER_OP(clock, INT_MIN,INT_MAX, gpioClockSet)
133 M(in, { pinMode (pin, INPUT); }) \
134 M(input, { pinMode (pin, INPUT); }) \
135 M(out, { pinMode (pin, OUTPUT); }) \
136 M(output, { pinMode (pin, OUTPUT); }) \
137 M(pwm, { pinMode (pin, PWM_OUTPUT); }) \
138 M(pwmTone, { pinMode (pin, PWM_TONE_OUTPUT); }) \
139 M(clock, { pinMode (pin, GPIO_CLOCK); }) \
140 M(up, { pullUpDnControl(pin, PUD_UP); }) \
141 M(down, { pullUpDnControl(pin, PUD_DOWN); }) \
142 M(tri, { pullUpDnControl(pin, PUD_OFF); }) \
143 M(off, { pullUpDnControl(pin, PUD_OFF); }) \
144 M(alt0, { pinModeAlt(pin, 0b100); }) \
145 M(alt1, { pinModeAlt(pin, 0b101); }) \
146 M(alt2, { pinModeAlt(pin, 0b110); }) \
147 M(alt3, { pinModeAlt(pin, 0b111); }) \
148 M(alt4, { pinModeAlt(pin, 0b011); }) \
149 M(alt5, { pinModeAlt(pin, 0b010); })
151 #define MODE_FUNC(name, body) static void mode_##name(int pin) { body }
154 const WiringPiTclModeInfo cht_wiringpitclmodeinfo_entries[] = {
155 #define MODEINFO_ENTRY(name, body) { #name, mode_##name },
156 MODES(MODEINFO_ENTRY)
160 int cht_do_wiringpitcl_mode(ClientData cd, Tcl_Interp *ip, int pin,
161 const WiringPiTclModeInfo *mode) {
163 rc = ensure_setup(); if (rc) return rc;
169 /*---------- main hooks for tcl ----------*/
171 CHT_INIT(wiringpi, {}, CHTI_COMMANDS(cht_wiringpitoplevel_entries))