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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <lirc/lirc_client.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include "common/msg.h"
#include "input.h"
#include "lirc.h"
static int mp_input_lirc_read(void *ctx, int fd,char* dest, int s);
static int mp_input_lirc_close(void *ctx, int fd);
struct ctx {
struct mp_log *log;
struct lirc_config *lirc_config;
char* cmd_buf;
};
int mp_input_lirc_init(struct input_ctx *ictx, struct mp_log *log,
char *lirc_configfile)
{
int lirc_sock;
int mode;
mp_verbose(log,"Setting up LIRC support...\n");
if((lirc_sock=lirc_init("mpv",0))==-1){
mp_verbose(log,"Failed to open LIRC support. You will not be able to use your remote control.\n");
return -1;
}
mode = fcntl(lirc_sock, F_GETFL);
if (mode < 0 || fcntl(lirc_sock, F_SETFL, mode | O_NONBLOCK) < 0) {
mp_err(log, "setting non-blocking mode failed: %s\n", strerror(errno));
lirc_deinit();
return -1;
}
struct lirc_config *lirc_config = NULL;
if(lirc_readconfig( lirc_configfile,&lirc_config,NULL )!=0 ){
mp_err(log, "Failed to read LIRC config file %s.\n",
lirc_configfile == NULL ? "~/.lircrc" : lirc_configfile);
lirc_deinit();
return -1;
}
struct ctx *ctx = talloc_ptrtype(NULL, ctx);
*ctx = (struct ctx){
.log = log,
.lirc_config = lirc_config,
};
mp_input_add_fd(ictx, lirc_sock, 0, mp_input_lirc_read, NULL, mp_input_lirc_close, ctx);
return lirc_sock;
}
static int mp_input_lirc_read(void *pctx,int fd,char* dest, int s) {
int r,cl = 0;
char *code = NULL,*c = NULL;
struct ctx *ctx = pctx;
// We have something in the buffer return it
if(ctx->cmd_buf != NULL) {
int l = strlen(ctx->cmd_buf), w = l > s ? s : l;
memcpy(dest,ctx->cmd_buf,w);
l -= w;
if(l > 0)
memmove(ctx->cmd_buf,&ctx->cmd_buf[w],l+1);
else {
free(ctx->cmd_buf);
ctx->cmd_buf = NULL;
}
return w;
}
// Nothing in the buffer, poll the lirc fd
if(lirc_nextcode(&code) != 0) {
MP_ERR(ctx, "Lirc error.\n");
return MP_INPUT_DEAD;
}
if(!code) return MP_INPUT_NOTHING;
// We put all cmds in a single buffer separated by \n
while((r = lirc_code2char(ctx->lirc_config,code,&c))==0 && c!=NULL) {
int l = strlen(c);
if(l <= 0)
continue;
ctx->cmd_buf = realloc(ctx->cmd_buf,cl+l+2);
memcpy(&ctx->cmd_buf[cl],c,l);
cl += l+1;
ctx->cmd_buf[cl-1] = '\n';
ctx->cmd_buf[cl] = '\0';
}
free(code);
if(r < 0)
return MP_INPUT_DEAD;
else if(ctx->cmd_buf) // return the first command in the buffer
return mp_input_lirc_read(ctx,fd,dest,s);
else
return MP_INPUT_RETRY;
}
static int mp_input_lirc_close(void *pctx,int fd)
{
struct ctx *ctx = pctx;
free(ctx->cmd_buf);
lirc_freeconfig(ctx->lirc_config);
lirc_deinit();
talloc_free(ctx);
return 0;
}
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