rockbox/apps/iap/iap-lingo7.c

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/***************************************************************************
* __________ __ ___.
* 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.
*
****************************************************************************/
#include "iap-core.h"
#include "iap-lingo.h"
#include "kernel.h"
#include "system.h"
#include "tuner.h"
#if CONFIG_TUNER
#include "ipod_remote_tuner.h"
#endif
/*
* This macro is meant to be used inside an IAP mode message handler.
* It is passed the expected minimum length of the message inbufferfer.
* If the inbufferfer 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)
/* Check for authenticated state, and return an ACK Not
* Authenticated on failure.
*/
#define CHECKAUTH do { \
if (!DEVICE_AUTHENTICATED) { \
cmd_ack(cmd, IAP_ACK_NO_AUTHEN); \
return; \
}} while(0)
static void cmd_ack(const unsigned char cmd, const unsigned char status)
{
IAP_TX_INIT(0x07, 0x00);
IAP_TX_PUT(status);
IAP_TX_PUT(cmd);
iap_send_tx();
}
#define cmd_ok(cmd) cmd_ack((cmd), IAP_ACK_OK)
void iap_handlepkt_mode7(const unsigned int len, const unsigned char *inbuffer)
{
/* Note that some of the Lingo Mode 7 commands are handled by
* ../firmware/drivers/tuner/ipod_remote_tuner.c as some of the
* commands are sourced with the remote as the master with the ipod acting
* as the slave.
*/
unsigned char cmd = inbuffer[1];
unsigned char statusnotifymaskbyte = 0;
/* We expect at least two bytes in the inbuffer, one for the
* lingo and one for the command
*/
CHECKLEN(2);
/* Lingo 0x07 must have been negotiated */
if (!DEVICE_LINGO_SUPPORTED(0x07)) {
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
return;
}
switch (cmd)
{
/* case 00 ToIpod Ack 2/6 bytes*/
case 0x00:
{
/* 0x00 OK
* 0x01 Unknown Track Category
* 0x02 Command Failed. Command is valid but did not succeed
* 0x03 Out Of Resources
* 0x04 Bad Parameter
* 0x05 Unknown Track ID
* 0x06 Command Pending.
* 0x07 Not Authenticated
*
* byte 1 is ID of command being acknowledged
* bytes 2-5 only if status byte is pending. timeout in ms.
*/
break;
}
/* case 0x01 ToAccessory GetTunerCaps
* This is sent by iap-lingo0.c through case 0x15 after device
* has been authenticated FF55020701F6
*/
/* case 02 ToIpod RetTunerCaps 8 bytes */
case 0x02:
{
/* Capabilities are stored as bits in first 4 bytes,
* inbuffer[2] byte is bits 31:24
* inbuffer[3] byte is bits 23:16
* inbuffer[4] byte is bits 15:08
* inbuffer[5] byte is bits 07:00
* inbuffer[6] and inbuffer[7] are all reserved bits
* Bit 0 = AM Band 520-1710 Khz
* Bit 1 = FM Europe/US 87.5 - 108.0 Mhz
* Bit 2 = FM Japan 76.0 - 90.0 Mhz
* Bit 3 = FM Wide 76.0 - 108.0 Mhz
* Bit 4 = HD Radio Capable
* Bit 5:7 Reserved
* Bit 8 = Tuner Power On/Off Control Capable
* Bit 9 = Status Change Notification Capable
* Bit 10:15 Reserved
* Bit 17:16 Minimum FM Resolution ID Bits
* 00 = 200Khz, 01 = 100Khz, 10 = 50Khz, 11 = reserved
* Bit 18 = Tuner Seek Up/Down Capable
* Bit 19 = Tuner Seek RSSI Threshold. Only if 18=1
* Bit 20 = Force Monophonic mode capable
* Bit 21 = Stero Blend Capable
* Bit 22 = FM Tuner deemphasis select capable
* Bit 23 = AM Tuner Resolution 9Khz (0=10Khz Only) capable
* Bit 24 = Radio Data System (RDS/RBDS) data capable
* Bit 25 = Tuner Channel RSSI indicator capable
* Bit 26 = Stero Source Indicator capable
* Bit 27 = RDS/RBDS Raw mode capable
* Bit 31:28 Reserved
*
* ipod Tuner returns 07 5E 07 0E 10 4B
* Bytes 6,7 Reserved
* ???????? ????????
* ???????? ????????
* 00010000 01001011
*
* Byte 5 - 0E
* 00000000
* 76543210
* 00001110
* AM
* FM Europe/US
* FM Japan
* FM Wide
*
* Byte 4 - 07
* 11111100
* 54321098
* 00000111
* Tuner Power On/Off
* Status Change Notification
* ?? Should be reserved
*
* Byte 3 - 5E
* 22221111
* 32109876
* 01011110
* Tuner Seek Up/Down
* Tuner Seek RSSI Threshold
* Force Mono Mode Capable
* Stereo Blend Capable
* FM Tuner deemphasis select capable
*
* Byte 2 - 07
* 33222222
* 10987654
* 00000111
* RDS/RBDS Capable
* Tuner Channel RSSI Indicator
* Stereo Source
*
* Just need to see what we can use this data for
* Make a selection for the tuner mode to select
* Preference is
* 1st - 76 to 108 FM
* 2nd - 87.5 to 108 Fm
* 3rd - 76 to 90 Fm
* 4th - AM
*
*/
if ((inbuffer[4] & 0x03) >0) {
statusnotifymaskbyte = 0;
if ((inbuffer[4] >> 0) & 0x01) {
/* Supports Tuner Power On/Off, so set ON */
statusnotifymaskbyte = 1;
}
if ((inbuffer[4] >> 1) & 0x01) {
/* Supports Status Change Notification so set ON */
/* Apple 5/6/7G firmware does NOT enable this bit */
/* statusnotifymaskbyte += 2; */
}
IAP_TX_INIT(0x07, 0x05);
IAP_TX_PUT(statusnotifymaskbyte);
iap_send_tx();
}
if ((inbuffer[5] >> 1) & 0x01) {
/* Supports FM Europe/US Tuner 87.5 - 108.0 Mhz */
/* Apple firmware sends this before setting region */
IAP_TX_INIT(0x07, 0x0E);
IAP_TX_PUT(0x00);
iap_send_tx();
/* Apple firmware then sends region */
IAP_TX_INIT(0x07, 0x08);
IAP_TX_PUT(0x02);
iap_send_tx();
} else if ((inbuffer[5] >> 3) & 0x01) {
/* Supports FM Wide Tuner 76 - 108.0 Mhz */
/* apple firmware send this before setting region */
IAP_TX_INIT(0x07, 0x0E);
IAP_TX_PUT(0x00);
iap_send_tx();
/* Apple firmware then send region */
IAP_TX_INIT(0x07, 0x08);
IAP_TX_PUT(0x08);
iap_send_tx();
} else if ((inbuffer[5] >> 2) & 0x01) {
/* Supports FM Japan Tuner 76 - 90.0 Mhz */
/* apple firmware send this before setting region */
IAP_TX_INIT(0x07, 0x0E);
IAP_TX_PUT(0x41);
iap_send_tx();
/* Apple firmware then send region */
IAP_TX_INIT(0x07, 0x08);
IAP_TX_PUT(0x04);
iap_send_tx();
} else if ((inbuffer[5] >> 0) & 0x01) {
/* Supports AM Tuner */
IAP_TX_INIT(0x07, 0x08);
IAP_TX_PUT(0x01);
iap_send_tx();
}
if ((inbuffer[2] & 0x03) > 0) {
statusnotifymaskbyte = 0;
if ((inbuffer[2] >> 0) & 0x01) {
/* Supports RDS/RBDS Capable so set
*StatusChangeNotify for RDS/RBDS Data
*/
statusnotifymaskbyte = 1;
}
if ((inbuffer[2] >> 1) & 0x01) {
/* Supports Tuner Channel RSSi Indicator Capable so set */
/* StatusChangeNotify for RSSI */
/* Apple 5G firmware does NOT enable this bit so we wont */
/* statusnotifymaskbyte += 2; */
}
IAP_TX_INIT(0x07, 0x18);
IAP_TX_PUT(statusnotifymaskbyte);
iap_send_tx();
}
if ((inbuffer[4] >> 2) & 0x01) {
/* Reserved */
}
if ((inbuffer[4] >> 3) & 0x01) {
/* Reserved */
}
if ((inbuffer[3] >> 1) & 0x01) {
/* Tuner Seek Up/Down` */
}
if ((inbuffer[3] >> 2) & 0x01) {
/* Tuner Seek RSSI Threshold */
}
if ((inbuffer[3] >> 3) & 0x01) {
/* Force Mono Mode */
}
if ((inbuffer[3] >> 4) & 0x01) {
/* Stereo Blend */
}
if ((inbuffer[3] >> 6) & 0x01) {
/* FM Tuner deemphasis */
}
if ((inbuffer[2] >> 2) & 0x01) {
/* Stereo Source */
}
break;
}
/* case 03 ToAccessory GetTunerCtrl 2 bytes */
/* case 04 ToIpod RetTunerCtrl 3 bytes
* Bit 0 power is on (1) or Off (0)
* Bit 1 StatusChangeNotify is enabled (1) or disabled (0)
* Bit 3 RDS/RBDS Raw mode enabled
*
* Should/Can we do something with these?
*/
/* case 05 ToAccessory SetTunerCtrl 3 bytes
* Bits as per 0x04 above
* Bit 0/1 set through Lingo7 Cmd02 */
/* case 06 ToAccessory GetTunerBand 2 bytes */
/* case 07 ToIpod RetTunerBand 3 bytes
* Returns current band for Tuner. See 0x08 below
*
* Should/Can we do something with these?
*/
/* case 08 ToAccessory SetTuneBand
* Set Bit 0 for AM
* Set Bit 1 for FM Europe/U S 87.5-108Mhz
* Set Bit 2 for FM JApan 76.0-90.0Mhz
* Set Bit 3 for FM Wide 76.0-108Mhz
* Currently we send this after receiving capabilities
* on 0x02 above
*/
/* case 09 ToAccessory GetTunerFreq 2 bytes */
/* case 0A ToIpod RetTunerFreq 7 bytes */
case 0x0A:
{
/* Returns Frequency set and RSSI Power Levels
* These are sent as is to rmt_tuner_freq() in
* ../firmware/drivers/tuner/ipod_remote_tuner.c */
rmt_tuner_freq(len, inbuffer);
break;
}
/* case 0B ToAccessory SetTunerFreq 6 bytes */
/* case 0C ToAccessory GetTunerMode 2 bytes */
/* case 0D ToIpod RetTunerMode 3 bytes
* Returns Tuner Mode Status in 8 bits as follows
* Bit 1:0 - FM Tuner Resolution
* Bit 2 Tuner is seeking up or down
* Bit 3 Tuner is seeking with RSSI min theshold enabled
* Bit 4 Force Mono Mode (1) or allow stereo (0)
* Bit 5 Stereo Blend enabled. Valid only if Bit 4 is 0
* Bit 6 FM Tuner Deemphasis 50uS (1) or 75uS (0)
* Bit 7 Reserved 0
*/
/* case 0E ToAccessory SetTunerMode 3 bytes
* See 0x0D for Bit Descriptions
* Bits set by Cmd 02
*/
/* case 0F ToAccessory GetTunerSeekRssi 2 bytes */
/* case 10 ToIpod RetTunerSeekRssi 3 bytes
* Returns RSSI Value for seek operations
* value is 0 (min) - 255 (max)
*/
/* case 11 ToAccessory SetTunerSeekRssi 3 bytes */
/* case 12 ToAccessory TunerSeekStart 3 bytes */
/* case 13 ToIpod TunerSeekDone 7 bytes */
case 0x13:
{
rmt_tuner_freq(len, inbuffer);
break;
}
/* case 14 ToAccessory GetTunerStatus 2 bytes */
/* case 15 ToIpod RetTunerStatus 3 bytes */
/* case 16 ToAccessory GetStatusNotifyMask 2 bytes */
/* case 17 ToIpod RetStatusNotifyMask 3 bytes */
/* case 18 ToAccessory SetStatusNotifyMask 3 bytes
* This is set by Cmd 02
*/
/* case 19 ToIpod StatusChangeNotify 3 bytes */
case 0x19:
{
/* Returns StatusChangeNotify bits to ipod.
* Bit 0 set for RDS/RBDS data ready
* Bit 1 set for Tuner RSSI level change
* Bit 2 for Stereo Indicator changed
* If any of these are set we will request the data
* need to look at using these
*/
break;
}
/* case 1A ToAccessory GetRdsReadyStatus 2 bytes */
/* case 1B ToIpod RetRdsReadyStatus 6 bytes */
case 0x1B:
{
break;
}
/* case 1C ToAccessory GetRdsData 3 bytes */
/* case 1D ToIpod RetRdsData NN bytes */
case 0x1D:
{
rmt_tuner_rds_data(len, inbuffer);
break;
}
/* case 1E ToAccessory GetRdsNotifyMask 2 bytes*/
/* case 1F ToIpod RetRdsNotifyMask 6 Bytes*/
case 0x1F:
{
break;
}
/* case 20 ToAccessory SetRdsNotifyMask 6 bytes */
/* case 21 ToIpod RdsReadyNotify NN bytes */
case 0x21:
{
rmt_tuner_rds_data(len, inbuffer);
break;
}
/* case 22 Reserved */
/* case 23 Reserved */
/* case 24 Reserved */
/* case 25 ToAccessory GetHDProgramServiceCount 0 bytes */
/* case 26 ToIpod RetHDProgramServiceCount 1 bytes */
case 0x26:
{
break;
}
/* case 27 ToAccessory GetHDProgramService 0 bytes */
/* case 28 ToIpod RetHDProgramService 1 bytes */
case 0x28:
{
break;
}
/* case 29 ToAccessory SetHDProgramService 1 bytes */
/* case 2A ToAccessory GetHDDataReadyStatus 0 bytes */
/* case 2B ToIpod RetHDDataReadyStatus 4 bytes */
case 0x2B:
{
break;
}
/* case 2C ToAccessory GetHDData 1 bytes */
/* case 2D ToIpod RetHDData NN bytes */
case 0x2D:
{
break;
}
/* case 2E ToAccessory GetHDDataNotifyMask 0 bytes */
/* case 2F ToIpod RetHDDataNotifyMask 4 bytes */
case 0x2F:
{
break;
}
/* case 30 ToAccessory SetHDDataNotifyMask 4 bytes */
/* case 31 ToIpod HDDataReadyNotify NN bytes */
case 0x31:
{
break;
}
/* The default response is IAP_ACK_BAD_PARAM */
default:
{
#ifdef LOGF_ENABLE
logf("iap: Unsupported Mode07 Command");
#endif
cmd_ack(cmd, IAP_ACK_BAD_PARAM);
break;
}
}
}