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/*
* Copyright (C) ST-Ericsson SA 2011
* Author: Per Persson per.xb.persson@stericsson.com for
* ST-Ericsson.
*
* License terms:
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <unistd.h> /* Symbolic Constants */
#include <sys/types.h> /* Primitive System Data Types */
#include <linux/types.h>
#include <errno.h> /* Errors */
#include <stdarg.h>
#include <stdio.h> /* Input/Output */
#include <stdlib.h> /* General Utilities */
#include <string.h> /* String handling */
#include <fcntl.h>
#include <time.h>
#include <ctype.h>
#ifdef ANDROID
#include <utils/Log.h>
#endif
#include "../include/hdmi_service_api.h"
#include "../include/hdmi_service_local.h"
const __u8 cecrxeven_val[] = {0x01}; /* Enable CEC RX events */
int cectx_cmd_id;
static int cectxcmdid_set(int cmd_id)
{
cectx_cmd_id = cmd_id;
return 0;
}
static int cectxcmdid_get(void)
{
return cectx_cmd_id;
}
/* Subscribe for incoming CEC messages */
int cecrx_subscribe(void)
{
int cecrxfd;
int ret = 0;
cecrxfd = open(CECRXEVEN_FILE, O_WRONLY);
if (cecrxfd < 0) {
LOGHDMILIB(" failed to open %s", CECRXEVEN_FILE);
return -1;
}
if (write(cecrxfd, cecrxeven_val, sizeof(cecrxeven_val)) !=
sizeof(cecrxeven_val))
ret = -2;
close(cecrxfd);
return ret;
}
int cecsenderr(void)
{
int val;
__u8 buf[32];
int cmd_id;
cmd_id = cectxcmdid_get();
val = HDMI_CECSENDERR;
memcpy(&buf[CMD_OFFSET], &val, 4);
memcpy(&buf[CMDID_OFFSET], &cmd_id, 4);
val = 0;
memcpy(&buf[CMDLEN_OFFSET], &val, 4);
/* Send on socket */
return clientsocket_send(buf, CMDBUF_OFFSET + val);
}
/* Send CEC message */
int cecsend(__u32 cmd_id, __u8 in, __u8 dest, __u8 len, __u8 *data)
{
int cecsendfd;
int res;
char buf[128];
LOGHDMILIB("%s begin", __func__);
cectxcmdid_set(cmd_id);
res = 0;
buf[0] = in;
buf[1] = dest;
buf[2] = len;
memcpy(&buf[3], data, len);
/* Send CEC cmd */
cecsendfd = open(CECSEND_FILE, O_WRONLY);
if (cecsendfd <= 0) {
LOGHDMILIB("***** Failed to open %s *****\n", CECSEND_FILE);
goto cecsend_err;
}
res = write(cecsendfd, buf, len + 3);
if (res != len + 3) {
LOGHDMILIB("***** cecsend failed %d *****\n", res);
close(cecsendfd);
goto cecsend_err;
}
close(cecsendfd);
LOGHDMILIB("%s end", __func__);
return 0;
cecsend_err:
cecsenderr();
LOGHDMILIB("%s end", __func__);
return -1;
}
/* Read received CEC message and forward on client socket */
int cecrx(void)
{
int cecreadfd;
__u8 buf[32];
__u8 cecdata[32];
int cecsize;
int cnt;
int val;
int res = 0;
__u32 cmd_id;
LOGHDMILIB("%s begin", __func__);
cmd_id = get_new_cmd_id_ind();
cecreadfd = open(CECREAD_FILE, O_RDONLY);
if (cecreadfd < 0) {
LOGHDMILIB("***** Failed to open %s *****", CECREAD_FILE);
return -1;
}
cecsize = read(cecreadfd, buf, sizeof(buf));
close(cecreadfd);
if (cecsize < 0)
return -1;
for (cnt = 0; cnt < cecsize; cnt++)
LOGHDMILIB2("cecrx[%d]:%x", cnt, buf[cnt]);
val = HDMI_CECRECVD;
memcpy(&buf[CMD_OFFSET], &val, 4);
memcpy(&buf[CMDID_OFFSET], &cmd_id, 4);
val = cecsize;
memcpy(&buf[CMDLEN_OFFSET], &val, 4);
memcpy(&buf[CMDBUF_OFFSET], cecdata, val);
/* Send on socket */
res = clientsocket_send(buf, CMDBUF_OFFSET + val);
LOGHDMILIB("%s end", __func__);
return res;
}
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