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This diff has been restricted to the following files: 'src/lsi/dmx.c'
# # old_revision [9cb69bf681632171c5140ab3801212de4c31e6b2] # new_revision [26704bfc7dde9382e68dbefa013c51b37b934b1d] # # patch "src/lsi/dmx.c" # from [d291829ae082bb1bea5c8eb16cffc5f0ab62e22b] # to [4a4db0cf9441f248b420da5ea0cb72f0ff099e31] # ============================================================ --- src/lsi/dmx.c d291829ae082bb1bea5c8eb16cffc5f0ab62e22b +++ src/lsi/dmx.c 4a4db0cf9441f248b420da5ea0cb72f0ff099e31 @@ -17,14 +17,15 @@ char *dmxuniverse; char dmxpacket[DMX_UNIVERSESIZE + DMX_PACKETSIZE]; char *dmxuniverse; -void dmx_open(void) +int dmx_open(void) { struct termios t; int flags; dmxfd = open(PORT, O_NONBLOCK | O_RDWR, 0); if (dmxfd == -1) { - err(1, "failed to open DMX port"); + warn("failed to open DMX port"); + return 0; } flags = fcntl(dmxfd, F_GETFL); @@ -34,6 +35,8 @@ void dmx_open(void) cfmakeraw(&t); t.c_cflag = CLOCAL | CREAD | CS8; tcsetattr(dmxfd, TCSANOW, &t); + + return 1; } @@ -94,7 +97,10 @@ int dmx_init(void) int dmx_init(void) { - dmx_open(); + int rv; + + rv = dmx_open(); + dmxpacket[0] = 0x7e; dmxpacket[1] = 6; dmxpacket[2] = (DMX_UNIVERSESIZE+1) & 0xff; @@ -104,7 +110,7 @@ int dmx_init(void) dmxpacket[DMX_UNIVERSESIZE+5] = 0xe7; dmxuniverse = dmxpacket+5; // dmx_dumpparams(); - return 1; + return rv; } void dmx_setchannel(int channel, int value) @@ -118,6 +124,10 @@ void dmx_output(void) int off = 0; // char *buf = dmxpacket; // printf("%x %x %x %x %x %x %x %x %x %x %x %x\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]); + + if (dmxfd == -1) + return; + while (off < DMX_PACKETSIZE) { int r; r = write(dmxfd, dmxpacket + off, DMX_PACKETSIZE - off);