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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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79
drivers/isdn/hardware/eicon/capidtmf.h Normal file
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/*
*
Copyright (c) Eicon Networks, 2002.
*
This source file is supplied for the use with
Eicon Networks range of DIVA Server Adapters.
*
Eicon File Revision : 2.1
*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
*
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
*
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef CAPIDTMF_H_
#define CAPIDTMF_H_
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
#define CAPIDTMF_TONE_GROUP_COUNT 2
#define CAPIDTMF_LOW_GROUP_FREQUENCIES 4
#define CAPIDTMF_HIGH_GROUP_FREQUENCIES 4
#define DSPDTMF_RX_SENSITIVITY_LOW_DEFAULT 50 /* -52 dBm */
#define DSPDTMF_RX_SENSITIVITY_HIGH_DEFAULT 50 /* -52 dBm */
#define DSPDTMF_RX_HIGH_EXCEEDING_LOW_DEFAULT 10 /* dB */
#define DSPDTMF_RX_LOW_EXCEEDING_HIGH_DEFAULT 10 /* dB */
#define DSPDTMF_RX_HARMONICS_SEL_DEFAULT 12 /* dB */
#define CAPIDTMF_RECV_BASE_FREQUENCY_COUNT (CAPIDTMF_LOW_GROUP_FREQUENCIES + CAPIDTMF_HIGH_GROUP_FREQUENCIES)
#define CAPIDTMF_RECV_GUARD_FREQUENCY_COUNT 8
#define CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT (CAPIDTMF_RECV_BASE_FREQUENCY_COUNT + CAPIDTMF_RECV_GUARD_FREQUENCY_COUNT)
#define CAPIDTMF_RECV_POSITIVE_COEFF_COUNT 16
#define CAPIDTMF_RECV_NEGATIVE_COEFF_COUNT (CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT - CAPIDTMF_RECV_POSITIVE_COEFF_COUNT)
#define CAPIDTMF_RECV_ACCUMULATE_CYCLES 205
#define CAPIDTMF_RECV_FUNDAMENTAL_OFFSET (0xff35L * 2)
#define CAPIDTMF_RECV_FUNDAMENTAL_DECREMENT (0x0028L * 2)
#define CAPIDTMF_RECV_DIGIT_BUFFER_SIZE 32
#define CAPIDTMF_RECV_STATE_IDLE 0x00
#define CAPIDTMF_RECV_STATE_DTMF_ACTIVE 0x01
typedef struct tag_capidtmf_recv_state
{
byte digit_buffer[CAPIDTMF_RECV_DIGIT_BUFFER_SIZE];
word digit_write_pos;
word digit_read_pos;
word indication_state;
word indication_state_ack;
long goertzel_buffer[2][CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT];
word min_gap_duration;
word min_digit_duration;
word cycle_counter;
word current_digit_on_time;
word current_digit_off_time;
byte current_digit_value;
byte state;
} t_capidtmf_recv_state;
typedef struct tag_capidtmf_state
{
byte ulaw;
t_capidtmf_recv_state recv;
} t_capidtmf_state;
word capidtmf_recv_indication(t_capidtmf_state *p_state, byte *buffer);
void capidtmf_recv_block(t_capidtmf_state *p_state, byte *buffer, word length);
void capidtmf_init(t_capidtmf_state *p_state, byte ulaw);
void capidtmf_recv_enable(t_capidtmf_state *p_state, word min_digit_duration, word min_gap_duration);
void capidtmf_recv_disable(t_capidtmf_state *p_state);
#define capidtmf_indication(p_state, buffer) (((p_state)->recv.indication_state != (p_state)->recv.indication_state_ack) ? capidtmf_recv_indication(p_state, buffer) : 0)
#define capidtmf_recv_process_block(p_state, buffer, length) { if ((p_state)->recv.state != CAPIDTMF_RECV_STATE_IDLE) capidtmf_recv_block(p_state, buffer, length); }
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
#endif