b170c73f92
Originally written and uploaded by Lalufu (Ralf Ertzinger) in Feb 2012. They have been condensed into a single patch and some further additions by Andy Potter. Currently includes Authentication V2 support from iPod to Accessory, RF/BlueTooth transmitter support, selecting a playlist and selecting a track from the current playlist. Does not support uploading Album Art or podcasts. Has been tested on the following iPods, 4th Gen Grayscale, 4th Gen Color/Photo, Mini 2nd Gen, Nano 1st Gen and Video 5.5Gen. Change-Id: Ie8fc098361844132f0228ecbe3c48da948726f5e Co-Authored by: Andy Potter <liveboxandy@gmail.com> Reviewed-on: http://gerrit.rockbox.org/533 Reviewed-by: Frank Gevaerts <frank@gevaerts.be>
278 lines
8.2 KiB
C
278 lines
8.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2002 by Alan Korr & Nick Robinson
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* Lingo 0x02, Simple Remote Lingo
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*
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* TODO:
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* - Fix cmd 0x00 handling, there has to be a more elegant way of doing
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* this
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*/
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#include "iap-core.h"
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#include "iap-lingo.h"
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#include "system.h"
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#include "button.h"
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#include "audio.h"
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#include "settings.h"
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/*
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* This macro is meant to be used inside an IAP mode message handler.
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* It is passed the expected minimum length of the message buffer.
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* If the buffer does not have the required lenght an ACK
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* packet with a Bad Parameter error is generated.
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*/
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#define CHECKLEN(x) do { \
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if (len < (x)) { \
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cmd_ack(cmd, IAP_ACK_BAD_PARAM); \
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return; \
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}} while(0)
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static void cmd_ack(const unsigned char cmd, const unsigned char status)
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{
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IAP_TX_INIT(0x02, 0x01);
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IAP_TX_PUT(status);
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IAP_TX_PUT(cmd);
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iap_send_tx();
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}
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#define cmd_ok(cmd) cmd_ack((cmd), IAP_ACK_OK)
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void iap_handlepkt_mode2(const unsigned int len, const unsigned char *buf)
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{
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unsigned int cmd = buf[1];
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/* We expect at least three bytes in the buffer, one for the
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* lingo, one for the command, and one for the first button
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* state bits.
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*/
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CHECKLEN(3);
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/* Lingo 0x02 must have been negotiated */
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if (!DEVICE_LINGO_SUPPORTED(0x02)) {
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cmd_ack(cmd, IAP_ACK_BAD_PARAM);
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return;
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}
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switch (cmd)
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{
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/* ContextButtonStatus (0x00)
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*
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* Transmit button events from the device to the iPod
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*
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* Packet format (offset in buf[]: Description)
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* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
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* 0x01: Command, always 0x00
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* 0x02: Button states 0:7
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* 0x03: Button states 8:15 (optional)
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* 0x04: Button states 16:23 (optional)
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* 0x05: Button states 24:31 (optional)
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*
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* Returns: (none)
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*/
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case 0x00:
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{
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iap_remotebtn = BUTTON_NONE;
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iap_timeoutbtn = 0;
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if(buf[2] != 0)
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{
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if(buf[2] & 1)
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REMOTE_BUTTON(BUTTON_RC_PLAY);
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if(buf[2] & 2)
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REMOTE_BUTTON(BUTTON_RC_VOL_UP);
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if(buf[2] & 4)
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REMOTE_BUTTON(BUTTON_RC_VOL_DOWN);
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if(buf[2] & 8)
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REMOTE_BUTTON(BUTTON_RC_RIGHT);
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if(buf[2] & 16)
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REMOTE_BUTTON(BUTTON_RC_LEFT);
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}
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else if(len >= 4 && buf[3] != 0)
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{
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if(buf[3] & 1) /* play */
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{
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if (audio_status() != AUDIO_STATUS_PLAY)
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REMOTE_BUTTON(BUTTON_RC_PLAY);
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}
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if(buf[3] & 2) /* pause */
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{
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if (audio_status() == AUDIO_STATUS_PLAY)
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REMOTE_BUTTON(BUTTON_RC_PLAY);
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}
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if(buf[3] & 128) /* Shuffle */
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{
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if (!iap_btnshuffle)
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{
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iap_shuffle_state(!global_settings.playlist_shuffle);
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iap_btnshuffle = true;
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}
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}
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}
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else if(len >= 5 && buf[4] != 0)
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{
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if(buf[4] & 1) /* repeat */
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{
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if (!iap_btnrepeat)
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{
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iap_repeat_next();
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iap_btnrepeat = true;
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}
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}
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/* Power off
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* Not quite sure how to react to this, but stopping playback
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* is a good start.
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*/
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if (buf[4] & 0x04)
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{
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if (audio_status() == AUDIO_STATUS_PLAY)
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REMOTE_BUTTON(BUTTON_RC_PLAY);
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}
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if(buf[4] & 16) /* ffwd */
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REMOTE_BUTTON(BUTTON_RC_RIGHT);
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if(buf[4] & 32) /* frwd */
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REMOTE_BUTTON(BUTTON_RC_LEFT);
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}
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break;
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}
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/* ACK (0x01)
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*
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* Sent from the iPod to the device
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*/
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/* ImageButtonStatus (0x02)
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*
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* Transmit image button events from the device to the iPod
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*
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* Packet format (offset in buf[]: Description)
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* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
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* 0x01: Command, always 0x02
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* 0x02: Button states 0:7
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* 0x03: Button states 8:15 (optional)
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* 0x04: Button states 16:23 (optional)
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* 0x05: Button states 24:31 (optional)
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*
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* This command requires authentication
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*
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* Returns on success:
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* IAP_ACK_OK
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*
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* Returns on failure:
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* IAP_ACK_*
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*/
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case 0x02:
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{
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if (!DEVICE_AUTHENTICATED) {
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cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
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break;
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}
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cmd_ack(cmd, IAP_ACK_CMD_FAILED);
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break;
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}
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/* VideoButtonStatus (0x03)
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*
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* Transmit video button events from the device to the iPod
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*
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* Packet format (offset in buf[]: Description)
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* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
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* 0x01: Command, always 0x03
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* 0x02: Button states 0:7
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* 0x03: Button states 8:15 (optional)
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* 0x04: Button states 16:23 (optional)
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* 0x05: Button states 24:31 (optional)
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*
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* This command requires authentication
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*
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* Returns on success:
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* IAP_ACK_OK
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*
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* Returns on failure:
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* IAP_ACK_*
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*/
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case 0x03:
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{
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if (!DEVICE_AUTHENTICATED) {
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cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
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break;
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}
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cmd_ack(cmd, IAP_ACK_CMD_FAILED);
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break;
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}
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/* AudioButtonStatus (0x04)
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*
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* Transmit audio button events from the device to the iPod
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*
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* Packet format (offset in buf[]: Description)
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* 0x00: Lingo ID: Simple Remote Lingo, always 0x02
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* 0x01: Command, always 0x04
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* 0x02: Button states 0:7
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* 0x03: Button states 8:15 (optional)
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* 0x04: Button states 16:23 (optional)
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* 0x05: Button states 24:31 (optional)
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*
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* This command requires authentication
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*
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* Returns on success:
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* IAP_ACK_OK
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*
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* Returns on failure:
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* IAP_ACK_*
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*/
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case 0x04:
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{
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unsigned char repeatbuf[6];
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if (!DEVICE_AUTHENTICATED) {
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cmd_ack(cmd, IAP_ACK_NO_AUTHEN);
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break;
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}
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/* This is basically the same command as ContextButtonStatus (0x00),
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* with the difference that it requires authentication and that
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* it returns an ACK packet to the device.
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* So just route it through the handler again, with 0x00 as the
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* command
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*/
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memcpy(repeatbuf, buf, 6);
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repeatbuf[1] = 0x00;
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iap_handlepkt_mode2((len<6)?len:6, repeatbuf);
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cmd_ok(cmd);
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break;
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}
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/* The default response is IAP_ACK_BAD_PARAM */
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default:
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{
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#ifdef LOGF_ENABLE
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logf("iap: Unsupported Mode02 Command");
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#else
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cmd_ack(cmd, IAP_ACK_BAD_PARAM);
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#endif
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break;
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}
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}
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}
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