279 lines
8.2 KiB
C
279 lines
8.2 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2002 by Alan Korr & Nick Robinson
|
||
|
|
*
|
||
|
|
* All files in this archive are subject to the GNU General Public License.
|
||
|
|
* See the file COPYING in the source tree root for full license agreement.
|
||
|
|
*
|
||
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/* Lingo 0x02, Simple Remote Lingo
|
||
|
|
*
|
||
|
|
* TODO:
|
||
|
|
* - Fix cmd 0x00 handling, there has to be a more elegant way of doing
|
||
|
|
* this
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "iap-core.h"
|
||
|
|
#include "iap-lingo.h"
|
||
|
|
#include "system.h"
|
||
|
|
#include "button.h"
|
||
|
|
#include "audio.h"
|
||
|
|
#include "settings.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This macro is meant to be used inside an IAP mode message handler.
|
||
|
|
* It is passed the expected minimum length of the message buffer.
|
||
|
|
* If the buffer does not have the required lenght an ACK
|
||
|
|
* packet with a Bad Parameter error is generated.
|
||
|
|
*/
|
||
|
|
#define CHECKLEN(x) do { \
|
||
|
|
if (len < (x)) { \
|
||
|
|
cmd_ack(cmd, IAP_ACK_BAD_PARAM); \
|
||
|
|
return; \
|
||
|
|
}} while(0)
|
||
|
|
|
||
|
|
static void cmd_ack(const unsigned char cmd, const unsigned char status)
|
||
|
|
{
|
||
|
|
IAP_TX_INIT(0x02, 0x01);
|
||
|
|
IAP_TX_PUT(status);
|
||
|
|
IAP_TX_PUT(cmd);
|
||
|
|
|
||
|
|
iap_send_tx();
|
||
|
|
}
|
||
|
|
|
||
|
|
#define cmd_ok(cmd) cmd_ack((cmd), IAP_ACK_OK)
|
||
|
|
|
||
|
|
void iap_handlepkt_mode2(const unsigned int len, const unsigned char *buf)
|
||
|
|
{
|
||
|
|
unsigned int cmd = buf[1];
|
||
|
|
|
||
|
|
/* We expect at least three bytes in the buffer, one for the
|
||
|
|
* lingo, one for the command, and one for the first button
|
||
|
|
* state bits.
|
||
|
|
*/
|
||
|
|
CHECKLEN(3);
|
||
|
|
|
||
|
|
/* Lingo 0x02 must have been negotiated */
|
||
|
|
if (!DEVICE_LINGO_SUPPORTED(0x02)) {
|
||
|
|
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (cmd)
|
||
|
|
{
|
||
|
|
/* ContextButtonStatus (0x00)
|
||
|
|
*
|
||
|
|
* Transmit button events from the device to the iPod
|
||
|
|
*
|
||
|
|
* Packet format (offset in buf[]: Description)
|
||
|
|
* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
|
||
|
|
* 0x01: Command, always 0x00
|
||
|
|
* 0x02: Button states 0:7
|
||
|
|
* 0x03: Button states 8:15 (optional)
|
||
|
|
* 0x04: Button states 16:23 (optional)
|
||
|
|
* 0x05: Button states 24:31 (optional)
|
||
|
|
*
|
||
|
|
* Returns: (none)
|
||
|
|
*/
|
||
|
|
case 0x00:
|
||
|
|
{
|
||
|
|
iap_remotebtn = BUTTON_NONE;
|
||
|
|
iap_timeoutbtn = 0;
|
||
|
|
|
||
|
|
if(buf[2] != 0)
|
||
|
|
{
|
||
|
|
if(buf[2] & 1)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_PLAY);
|
||
|
|
if(buf[2] & 2)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_VOL_UP);
|
||
|
|
if(buf[2] & 4)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_VOL_DOWN);
|
||
|
|
if(buf[2] & 8)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_RIGHT);
|
||
|
|
if(buf[2] & 16)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_LEFT);
|
||
|
|
}
|
||
|
|
else if(len >= 4 && buf[3] != 0)
|
||
|
|
{
|
||
|
|
if(buf[3] & 1) /* play */
|
||
|
|
{
|
||
|
|
if (audio_status() != AUDIO_STATUS_PLAY)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_PLAY);
|
||
|
|
}
|
||
|
|
if(buf[3] & 2) /* pause */
|
||
|
|
{
|
||
|
|
if (audio_status() == AUDIO_STATUS_PLAY)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_PLAY);
|
||
|
|
}
|
||
|
|
if(buf[3] & 128) /* Shuffle */
|
||
|
|
{
|
||
|
|
if (!iap_btnshuffle)
|
||
|
|
{
|
||
|
|
iap_shuffle_state(!global_settings.playlist_shuffle);
|
||
|
|
iap_btnshuffle = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if(len >= 5 && buf[4] != 0)
|
||
|
|
{
|
||
|
|
if(buf[4] & 1) /* repeat */
|
||
|
|
{
|
||
|
|
if (!iap_btnrepeat)
|
||
|
|
{
|
||
|
|
iap_repeat_next();
|
||
|
|
iap_btnrepeat = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Power off
|
||
|
|
* Not quite sure how to react to this, but stopping playback
|
||
|
|
* is a good start.
|
||
|
|
*/
|
||
|
|
if (buf[4] & 0x04)
|
||
|
|
{
|
||
|
|
if (audio_status() == AUDIO_STATUS_PLAY)
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_PLAY);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(buf[4] & 16) /* ffwd */
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_RIGHT);
|
||
|
|
if(buf[4] & 32) /* frwd */
|
||
|
|
REMOTE_BUTTON(BUTTON_RC_LEFT);
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/* ACK (0x01)
|
||
|
|
*
|
||
|
|
* Sent from the iPod to the device
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* ImageButtonStatus (0x02)
|
||
|
|
*
|
||
|
|
* Transmit image button events from the device to the iPod
|
||
|
|
*
|
||
|
|
* Packet format (offset in buf[]: Description)
|
||
|
|
* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
|
||
|
|
* 0x01: Command, always 0x02
|
||
|
|
* 0x02: Button states 0:7
|
||
|
|
* 0x03: Button states 8:15 (optional)
|
||
|
|
* 0x04: Button states 16:23 (optional)
|
||
|
|
* 0x05: Button states 24:31 (optional)
|
||
|
|
*
|
||
|
|
* This command requires authentication
|
||
|
|
*
|
||
|
|
* Returns on success:
|
||
|
|
* IAP_ACK_OK
|
||
|
|
*
|
||
|
|
* Returns on failure:
|
||
|
|
* IAP_ACK_*
|
||
|
|
*/
|
||
|
|
case 0x02:
|
||
|
|
{
|
||
|
|
if (!DEVICE_AUTHENTICATED) {
|
||
|
|
cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
cmd_ack(cmd, IAP_ACK_CMD_FAILED);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* VideoButtonStatus (0x03)
|
||
|
|
*
|
||
|
|
* Transmit video button events from the device to the iPod
|
||
|
|
*
|
||
|
|
* Packet format (offset in buf[]: Description)
|
||
|
|
* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
|
||
|
|
* 0x01: Command, always 0x03
|
||
|
|
* 0x02: Button states 0:7
|
||
|
|
* 0x03: Button states 8:15 (optional)
|
||
|
|
* 0x04: Button states 16:23 (optional)
|
||
|
|
* 0x05: Button states 24:31 (optional)
|
||
|
|
*
|
||
|
|
* This command requires authentication
|
||
|
|
*
|
||
|
|
* Returns on success:
|
||
|
|
* IAP_ACK_OK
|
||
|
|
*
|
||
|
|
* Returns on failure:
|
||
|
|
* IAP_ACK_*
|
||
|
|
*/
|
||
|
|
case 0x03:
|
||
|
|
{
|
||
|
|
if (!DEVICE_AUTHENTICATED) {
|
||
|
|
cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
cmd_ack(cmd, IAP_ACK_CMD_FAILED);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* AudioButtonStatus (0x04)
|
||
|
|
*
|
||
|
|
* Transmit audio button events from the device to the iPod
|
||
|
|
*
|
||
|
|
* Packet format (offset in buf[]: Description)
|
||
|
|
* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
|
||
|
|
* 0x01: Command, always 0x04
|
||
|
|
* 0x02: Button states 0:7
|
||
|
|
* 0x03: Button states 8:15 (optional)
|
||
|
|
* 0x04: Button states 16:23 (optional)
|
||
|
|
* 0x05: Button states 24:31 (optional)
|
||
|
|
*
|
||
|
|
* This command requires authentication
|
||
|
|
*
|
||
|
|
* Returns on success:
|
||
|
|
* IAP_ACK_OK
|
||
|
|
*
|
||
|
|
* Returns on failure:
|
||
|
|
* IAP_ACK_*
|
||
|
|
*/
|
||
|
|
case 0x04:
|
||
|
|
{
|
||
|
|
unsigned char repeatbuf[6];
|
||
|
|
|
||
|
|
if (!DEVICE_AUTHENTICATED) {
|
||
|
|
cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* This is basically the same command as ContextButtonStatus (0x00),
|
||
|
|
* with the difference that it requires authentication and that
|
||
|
|
* it returns an ACK packet to the device.
|
||
|
|
* So just route it through the handler again, with 0x00 as the
|
||
|
|
* command
|
||
|
|
*/
|
||
|
|
memcpy(repeatbuf, buf, 6);
|
||
|
|
repeatbuf[1] = 0x00;
|
||
|
|
iap_handlepkt_mode2((len<6)?len:6, repeatbuf);
|
||
|
|
|
||
|
|
cmd_ok(cmd);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* The default response is IAP_ACK_BAD_PARAM */
|
||
|
|
default:
|
||
|
|
{
|
||
|
|
#ifdef LOGF_ENABLE
|
||
|
|
logf("iap: Unsupported Mode02 Command");
|
||
|
|
#else
|
||
|
|
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
|
||
|
|
#endif
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|