Code cleanup: formatting, added conditional error
This commit is contained in:
JC
parent
c3e8255546
commit
ae23d3c951
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@ -1,5 +1,12 @@
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/* teres1-audiocontrol.c - audio input/output manager
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Should be run as root. On start, it reads an A64 specific
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memory address and sets the mixer accordingly. Then the program
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exits, unless a device is given as an argument
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(normally, /dev/input/by-path/platform-sound.6-event).
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In this case, the program runs forever, watching
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the jack plug in/out events.
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Copyright (C) 2017 Chris Boudacoff
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This program is free software; you can redistribute it and/or modify
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@ -9,7 +16,7 @@
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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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*/
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#include <fcntl.h>
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#include <stdio.h>
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@ -25,51 +32,46 @@
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#define SUNXI_HMIC_STS 0x01c22c00+0x319
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unsigned long SUNXI_PIO_BASE = 0;
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void select_mode(char mmsel,char mval){
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switch (mmsel) {
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case 2: // headphones
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// printf("Headphones: %d\n", mval);
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if (mval == 0)
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{
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system("amixer -c 0 set \"External Speaker\" on > /dev/null");
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system("amixer -c 0 set \"Headphone\" off > /dev/null");
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}
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else
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{
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system("amixer -c 0 set \"External Speaker\" off > /dev/null");
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system("amixer -c 0 set \"Headphone\" on > /dev/null");
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}
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break;
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case 4: // mice
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// printf("Microphone: %d\n", mval);
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if (mval == 0)
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{
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system("amixer -c 0 sset \"RADC input Mixer MIC1 boost\" unmute > /dev/null" );
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system("amixer -c 0 sset \"LADC input Mixer MIC1 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"RADC input Mixer MIC2 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC2 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"ADCL Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"ADCR Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0L Mixer ADCL\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0R Mixer ADCR\" ADC > /dev/null");
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}
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else
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{
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system("amixer -c 0 sset \"RADC input Mixer MIC2 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC2 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"RADC input Mixer MIC1 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC1 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"ADCL Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"ADCR Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0L Mixer ADCL\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0R Mixer ADCR\" ADC > /dev/null");
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}
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break;
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}
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void select_mode(char mmsel,char mval) {
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switch (mmsel) {
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case 2: // headphones
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// printf("Headphones: %d\n", mval);
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if (mval == 0) {
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system("amixer -c 0 set \"External Speaker\" on > /dev/null");
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system("amixer -c 0 set \"Headphone\" off > /dev/null");
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}
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else {
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system("amixer -c 0 set \"External Speaker\" off > /dev/null");
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system("amixer -c 0 set \"Headphone\" on > /dev/null");
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}
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break;
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case 4: // mic
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// printf("Microphone: %d\n", mval);
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if (mval == 0) {
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system("amixer -c 0 sset \"RADC input Mixer MIC1 boost\" unmute > /dev/null" );
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system("amixer -c 0 sset \"LADC input Mixer MIC1 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"RADC input Mixer MIC2 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC2 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"ADCL Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"ADCR Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0L Mixer ADCL\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0R Mixer ADCR\" ADC > /dev/null");
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}
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else {
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system("amixer -c 0 sset \"RADC input Mixer MIC2 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC2 boost\" unmute > /dev/null");
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system("amixer -c 0 sset \"RADC input Mixer MIC1 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"LADC input Mixer MIC1 boost\" mute > /dev/null");
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system("amixer -c 0 sset \"ADCL Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"ADCR Mux\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0L Mixer ADCL\" ADC > /dev/null");
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system("amixer -c 0 sset \"AIF1 AD0R Mixer ADCR\" ADC > /dev/null");
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}
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break;
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}
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}
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const char *readLine(FILE *file) {
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if (file == NULL) {
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@ -110,34 +112,34 @@ const char *readLine(FILE *file) {
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const char *constLine = line;
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return constLine;
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}
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int main (int argc, char **argv)
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{
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const char *device = NULL;
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const char *debug;
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int fd;
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struct input_event ie;
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FILE *uenv;
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/*
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* When started without argument just check for jack and set mixer
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*/
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uenv=fopen("/boot/uEnv.txt","r");
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if (uenv) {
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while(1)
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{
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debug = readLine(uenv);
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if (strlen(debug)==0) break;
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if (strcmp(debug,"debug=on")==0) {
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// device is in debug mode!!!
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select_mode(2,0);
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select_mode(4,0);
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exit(0);
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}
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}
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}
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int main (int argc, char **argv) {
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const char *device = NULL;
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const char *debug;
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int fd;
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struct input_event ie;
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FILE *uenv;
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/*
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* When started without argument just check for jack and set mixer
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*/
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uenv=fopen("/boot/uEnv.txt","r");
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if (uenv) {
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while(1) {
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debug = readLine(uenv);
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if (strlen(debug)==0) {
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break;
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}
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if (strcmp(debug,"debug=on")==0) {
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// device is in debug mode!!!
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select_mode(2,0);
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select_mode(4,0);
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exit(0);
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}
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}
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}
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off_t offset = SUNXI_HMIC_STS;
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size_t len = 0x01;
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size_t pagesize = sysconf(_SC_PAGE_SIZE);
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@ -145,57 +147,47 @@ FILE *uenv;
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off_t page_offset = offset - page_base;
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fd = open("/dev/mem", O_SYNC);
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if (fd == -1) {
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perror("Cannot open /dev/mem");
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return -1;
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}
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unsigned char *mem = mmap(NULL, page_offset + len, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, page_base);
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if (mem == MAP_FAILED) {
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perror("Can't map memory");
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return -1;
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}
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if ((int)mem[page_offset] && 0x08) //headset?
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select_mode(4,1);
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else
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select_mode(4,0);
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if ((int)mem[page_offset] && 0x04) //headphone?
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select_mode(2,1);
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else
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select_mode(2,0);
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close(fd);
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if (!argv[1])
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exit(0);
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device = argv[1];
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for (;;)
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{
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if((fd = open(device, O_RDONLY)) == -1)
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{
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perror("Could not open input device ");
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exit(255);
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}
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while(read(fd, &ie, sizeof(struct input_event))>0)
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{
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// printf("type %d\tcode %d\tvalue %d\n", ie.type, ie.code, ie.value);
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switch (ie.type)
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{
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case 5: // pluged
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select_mode(ie.code,ie.value);
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break;
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if ((int)mem[page_offset] && 0x08) { //headset?
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select_mode(4,1);
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}
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else {
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select_mode(4,0);
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}
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}
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close(fd);
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usleep(65535u);
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}
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if ((int)mem[page_offset] && 0x04) { //headphone?
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select_mode(2,1);
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}
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else {
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select_mode(2,0);
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}
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return 0;
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for (;;) {
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if((fd = open(device, O_RDONLY)) == -1) {
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perror("Could not open input device");
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exit(255);
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}
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while(read(fd, &ie, sizeof(struct input_event)) > 0) {
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// printf("type %d\tcode %d\tvalue %d\n", ie.type, ie.code, ie.value);
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if (ie.type == 5) {
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select_mode(ie.code,ie.value);
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}
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}
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close(fd);
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usleep(65535u);
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}
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return 0;
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}
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