rockbox/apps/iap/iap-core.h
LiveboxAndy 77f8c9c9f1 Update to allow the Apple Radio Remote to function on iPod Video 5G.
This was broken when the major update to iap was comitted.
ia-lingo7.c created and various iap related files modified.
On 4G, 6G and Nano 1/2Gen iPods the remote will function
even though the radio won't.
Tested on 4G Greyscale, 4G Color, 4G Photo, 4G Mini 1st Gen,
4G Mini 2Gen, Nano 1G, Nano 2G, Video 5G, Video 5.5G

Change-Id: Ia74e3d07d9ab5edc6da8eafa96801ede722be331
2020-07-09 18:02:07 +00:00

254 lines
9.5 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.
*
****************************************************************************/
#ifndef _IAP_CORE_H
#define _IAP_CORE_H
#include <stdint.h>
#include <string.h>
#include "timefuncs.h"
#include "metadata.h"
#include "playlist.h"
#include "iap.h"
#define LOGF_ENABLE
/* #undef LOGF_ENABLE */
#ifdef LOGF_ENABLE
#include "logf.h"
#endif
/* The Model ID of the iPod we emulate. Currently a 160GB classic */
#define IAP_IPOD_MODEL (0x00130200U)
#define IAP_IPOD_VARIANT "MC293"
/* The firmware version we emulate. Currently 2.0.3 */
#define IAP_IPOD_FIRMWARE_MAJOR (2)
#define IAP_IPOD_FIRMWARE_MINOR (0)
#define IAP_IPOD_FIRMWARE_REV (3)
/* Status code for IAP ack messages */
#define IAP_ACK_OK (0x00) /* Success */
#define IAP_ACK_UNKNOWN_DB (0x01) /* Unknown Database Category */
#define IAP_ACK_CMD_FAILED (0x02) /* Command failed */
#define IAP_ACK_NO_RESOURCE (0x03) /* Out of resources */
#define IAP_ACK_BAD_PARAM (0x04) /* Bad parameter */
#define IAP_ACK_UNKNOWN_ID (0x05) /* Unknown ID */
#define IAP_ACK_PENDING (0x06) /* Command pending */
#define IAP_ACK_NO_AUTHEN (0x07) /* Not authenticated */
#define IAP_ACK_BAD_AUTHEN (0x08) /* Bad authentication version */
/* 0x09 reserved */
#define IAP_ACK_CERT_INVAL (0x0A) /* Certificate invalid */
#define IAP_ACK_CERT_PERM (0x0B) /* Certificate permissions invalid */
/* 0x0C-0x10 reserved */
#define IAP_ACK_RES_INVAL (0x11) /* Invalid accessory resistor value */
/* Add a button to the remote button bitfield. Also set iap_repeatbtn=1
* to ensure a button press is at least delivered once.
*/
#define REMOTE_BUTTON(x) do { \
iap_remotebtn |= (x); \
iap_timeoutbtn = 3; \
iap_repeatbtn = 2; \
} while(0)
/* States of the extended command support */
enum interface_state {
IST_STANDARD, /* General state, support lingo 0x00 commands */
IST_EXTENDED, /* Extended Interface lingo (0x04) negotiated */
};
/* States of the authentication state machine */
enum authen_state {
AUST_NONE, /* Initial state, no message sent */
AUST_INIT, /* Remote side has requested authentication */
AUST_CERTREQ, /* Remote certificate requested */
AUST_CERTBEG, /* Certificate is being received */
AUST_CERTALLRECEIVED, /* Certificate all Received */
AUST_CERTDONE, /* Certificate all Done */
AUST_CHASENT, /* Challenge sent */
AUST_CHADONE, /* Challenge response received */
AUST_AUTH, /* Authentication complete */
};
/* State of authentication */
struct auth_t {
enum authen_state state; /* Current state of authentication */
unsigned char max_section; /* The maximum number of certificate sections */
unsigned char next_section; /* The next expected section number */
uint16_t version; /* Authentication version */
};
/* State of GetAccessoryInfo */
enum accinfo_state {
ACCST_NONE, /* Initial state, no message sent */
ACCST_INIT, /* Send out initial GetAccessoryInfo */
ACCST_SENT, /* Wait for initial RetAccessoryInfo */
ACCST_DATA, /* Query device information, according to capabilities */
};
/* A struct describing an attached device and it's current
* state
*/
struct device_t {
struct auth_t auth; /* Authentication state */
enum accinfo_state accinfo; /* Accessory information state */
uint32_t lingoes; /* Negotiated lingoes */
uint32_t notifications; /* Requested notifications. These are just the
* notifications explicitly requested by the
* device
*/
uint32_t changed_notifications; /* Tracks notifications that changed since the last
* call to SetRemoteEventNotification or GetRemoteEventStatus
*/
bool do_notify; /* Notifications enabled */
bool do_power_notify; /* Whether to send power change notifications.
* These are sent automatically to all devices
* that used IdentifyDeviceLingoes to identify
* themselves, independent of other notifications
*/
uint32_t trackpos_ms; /* These fields are to save the current state */
uint32_t track_index; /* of various fields so we can send a notification */
uint32_t chapter_index; /* if they change */
unsigned char play_status;
bool mute;
unsigned char volume;
unsigned char power_state;
unsigned char battery_level;
uint32_t equalizer_index;
unsigned char shuffle;
unsigned char repeat;
struct tm datetime;
unsigned char alarm_state;
unsigned char alarm_hour;
unsigned char alarm_minute;
unsigned char backlight;
bool hold;
unsigned char soundcheck;
unsigned char audiobook;
uint16_t trackpos_s;
uint32_t capabilities; /* Capabilities of the device, as returned by type 0
* of GetAccessoryInfo
*/
uint32_t capabilities_queried; /* Capabilities already queried */
};
extern struct device_t device;
#define DEVICE_AUTHENTICATED (device.auth.state == AUST_AUTH)
#define DEVICE_AUTH_RUNNING ((device.auth.state != AUST_NONE) && (device.auth.state != AUST_AUTH))
#define DEVICE_LINGO_SUPPORTED(x) (device.lingoes & BIT_N((x)&0x1f))
extern unsigned long iap_remotebtn;
extern unsigned int iap_timeoutbtn;
extern int iap_repeatbtn;
extern unsigned char* iap_txpayload;
extern unsigned char* iap_txnext;
/* These are a number of helper macros to manage the dynamic TX buffer content
* These macros DO NOT CHECK for buffer overflow. iap_send_tx() will, but
* it might be too late at that point. See the current size of TX_BUFLEN
*/
/* Initialize the TX buffer with a lingo and command ID. This will reset the
* data pointer, effectively invalidating unsent information in the TX buffer.
* There are two versions of this, one for 1 byte command IDs (all Lingoes except
* 0x04) and one for two byte command IDs (Lingo 0x04)
*/
#define IAP_TX_INIT(lingo, command) do { \
iap_txnext = iap_txpayload; \
IAP_TX_PUT((lingo)); \
IAP_TX_PUT((command)); \
} while (0)
#define IAP_TX_INIT4(lingo, command) do { \
iap_txnext = iap_txpayload; \
IAP_TX_PUT((lingo)); \
IAP_TX_PUT_U16((command)); \
} while (0)
/* Put an unsigned char into the TX buffer */
#define IAP_TX_PUT(data) *(iap_txnext++) = (data)
/* Put a 16bit unsigned quantity into the TX buffer */
#define IAP_TX_PUT_U16(data) do { \
put_u16(iap_txnext, (data)); \
iap_txnext += 2; \
} while (0)
/* Put a 32bit unsigned quantity into the TX buffer */
#define IAP_TX_PUT_U32(data) do { \
put_u32(iap_txnext, (data)); \
iap_txnext += 4; \
} while (0)
/* Put an arbitrary amount of data (identified by a char pointer and
* a length) into the TX buffer
*/
#define IAP_TX_PUT_DATA(data, len) do { \
memcpy(iap_txnext, (unsigned char *)(data), (len)); \
iap_txnext += (len); \
} while(0)
/* Put a NULL terminated string into the TX buffer, including the
* NULL byte
*/
#define IAP_TX_PUT_STRING(str) IAP_TX_PUT_DATA((str), strlen((str))+1)
/* Put a NULL terminated string into the TX buffer, taking care not to
* overflow the buffer. If the string does not fit into the TX buffer
* it will be truncated, but always NULL terminated.
*
* This function is expensive compared to the other IAP_TX_PUT_*
* functions
*/
#define IAP_TX_PUT_STRLCPY(str) iap_tx_strlcpy(str)
extern unsigned char lingo_versions[32][2];
#define LINGO_SUPPORTED(x) (LINGO_MAJOR((x)&0x1f) > 0)
#define LINGO_MAJOR(x) (lingo_versions[(x)&0x1f][0])
#define LINGO_MINOR(x) (lingo_versions[(x)&0x1f][1])
void put_u16(unsigned char *buf, const uint16_t data);
void put_u32(unsigned char *buf, const uint32_t data);
uint32_t get_u32(const unsigned char *buf);
uint16_t get_u16(const unsigned char *buf);
void iap_tx_strlcpy(const unsigned char *str);
void iap_reset_auth(struct auth_t* auth);
void iap_reset_device(struct device_t* device);
void iap_shuffle_state(bool state);
void iap_repeat_state(unsigned char state);
void iap_repeat_next(void);
void iap_fill_power_state(void);
void iap_send_tx(void);
void iap_set_remote_volume(void);
extern enum interface_state interface_state;
void iap_interface_state_change(const enum interface_state new);
extern bool iap_btnrepeat;
extern bool iap_btnshuffle;
uint32_t iap_get_trackpos(void);
uint32_t iap_get_trackindex(void);
void iap_get_trackinfo(const unsigned int track, struct mp3entry* id3);
#endif