227 lines
8.3 KiB
C
227 lines
8.3 KiB
C
/*
|
|
msp3400.h - definition for msp3400 inputs and outputs
|
|
|
|
Copyright (C) 2006 Hans Verkuil (hverkuil@xs4all.nl)
|
|
|
|
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 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the 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 _MSP3400_H_
|
|
#define _MSP3400_H_
|
|
|
|
/* msp3400 routing
|
|
===============
|
|
|
|
The msp3400 has a complicated routing scheme with many possible
|
|
combinations. The details are all in the datasheets but I will try
|
|
to give a short description here.
|
|
|
|
Inputs
|
|
======
|
|
|
|
There are 1) tuner inputs, 2) I2S inputs, 3) SCART inputs. You will have
|
|
to select which tuner input to use and which SCART input to use. The
|
|
selected tuner input, the selected SCART input and all I2S inputs go to
|
|
the DSP (the tuner input first goes through the demodulator).
|
|
|
|
The DSP handles things like volume, bass/treble, balance, and some chips
|
|
have support for surround sound. It has several outputs: MAIN, AUX, I2S
|
|
and SCART1/2. Each output can select which DSP input to use. So the MAIN
|
|
output can select the tuner input while at the same time the SCART1 output
|
|
uses the I2S input.
|
|
|
|
Outputs
|
|
=======
|
|
|
|
Most DSP outputs are also the outputs of the msp3400. However, the SCART
|
|
outputs of the msp3400 can select which input to use: either the SCART1 or
|
|
SCART2 output from the DSP, or the msp3400 SCART inputs, thus completely
|
|
bypassing the DSP.
|
|
|
|
Summary
|
|
=======
|
|
|
|
So to specify a complete routing scheme for the msp3400 you will have to
|
|
specify in the 'input' arg of the s_routing function:
|
|
|
|
1) which tuner input to use
|
|
2) which SCART input to use
|
|
3) which DSP input to use for each DSP output
|
|
|
|
And in the 'output' arg of the s_routing function you specify:
|
|
|
|
1) which SCART input to use for each SCART output
|
|
|
|
Depending on how the msp is wired to the other components you can
|
|
ignore or mute certain inputs or outputs.
|
|
|
|
Also, depending on the msp version only a subset of the inputs or
|
|
outputs may be present. At the end of this header some tables are
|
|
added containing a list of what is available for each msp version.
|
|
*/
|
|
|
|
/* Inputs to the DSP unit: two independent selections have to be made:
|
|
1) the tuner (SIF) input
|
|
2) the SCART input
|
|
Bits 0-2 are used for the SCART input select, bit 3 is used for the tuner
|
|
input, bits 4-7 are reserved.
|
|
*/
|
|
|
|
/* SCART input to DSP selection */
|
|
#define MSP_IN_SCART1 0 /* Pin SC1_IN */
|
|
#define MSP_IN_SCART2 1 /* Pin SC2_IN */
|
|
#define MSP_IN_SCART3 2 /* Pin SC3_IN */
|
|
#define MSP_IN_SCART4 3 /* Pin SC4_IN */
|
|
#define MSP_IN_MONO 6 /* Pin MONO_IN */
|
|
#define MSP_IN_MUTE 7 /* Mute DSP input */
|
|
#define MSP_SCART_TO_DSP(in) (in)
|
|
/* Tuner input to demodulator and DSP selection */
|
|
#define MSP_IN_TUNER1 0 /* Analog Sound IF input pin ANA_IN1 */
|
|
#define MSP_IN_TUNER2 1 /* Analog Sound IF input pin ANA_IN2 */
|
|
#define MSP_TUNER_TO_DSP(in) ((in) << 3)
|
|
|
|
/* The msp has up to 5 DSP outputs, each output can independently select
|
|
a DSP input.
|
|
|
|
The DSP outputs are: loudspeaker output (aka MAIN), headphones output
|
|
(aka AUX), SCART1 DA output, SCART2 DA output and an I2S output.
|
|
There also is a quasi-peak detector output, but that is not used by
|
|
this driver and is set to the same input as the loudspeaker output.
|
|
Not all outputs are supported by all msp models. Setting the input
|
|
of an unsupported output will be ignored by the driver.
|
|
|
|
There are up to 16 DSP inputs to choose from, so each output is
|
|
assigned 4 bits.
|
|
|
|
Note: the 44x8G can mix two inputs and feed the result back to the
|
|
DSP. This is currently not implemented. Also not implemented is the
|
|
multi-channel capable I2S3 input of the 44x0G. If someone can demonstrate
|
|
a need for one of those features then additional support can be added. */
|
|
#define MSP_DSP_IN_TUNER 0 /* Tuner DSP input */
|
|
#define MSP_DSP_IN_SCART 2 /* SCART DSP input */
|
|
#define MSP_DSP_IN_I2S1 5 /* I2S1 DSP input */
|
|
#define MSP_DSP_IN_I2S2 6 /* I2S2 DSP input */
|
|
#define MSP_DSP_IN_I2S3 7 /* I2S3 DSP input */
|
|
#define MSP_DSP_IN_MAIN_AVC 11 /* MAIN AVC processed DSP input */
|
|
#define MSP_DSP_IN_MAIN 12 /* MAIN DSP input */
|
|
#define MSP_DSP_IN_AUX 13 /* AUX DSP input */
|
|
#define MSP_DSP_TO_MAIN(in) ((in) << 4)
|
|
#define MSP_DSP_TO_AUX(in) ((in) << 8)
|
|
#define MSP_DSP_TO_SCART1(in) ((in) << 12)
|
|
#define MSP_DSP_TO_SCART2(in) ((in) << 16)
|
|
#define MSP_DSP_TO_I2S(in) ((in) << 20)
|
|
|
|
/* Output SCART select: the SCART outputs can select which input
|
|
to use. */
|
|
#define MSP_SC_IN_SCART1 0 /* SCART1 input, bypassing the DSP */
|
|
#define MSP_SC_IN_SCART2 1 /* SCART2 input, bypassing the DSP */
|
|
#define MSP_SC_IN_SCART3 2 /* SCART3 input, bypassing the DSP */
|
|
#define MSP_SC_IN_SCART4 3 /* SCART4 input, bypassing the DSP */
|
|
#define MSP_SC_IN_DSP_SCART1 4 /* DSP SCART1 input */
|
|
#define MSP_SC_IN_DSP_SCART2 5 /* DSP SCART2 input */
|
|
#define MSP_SC_IN_MONO 6 /* MONO input, bypassing the DSP */
|
|
#define MSP_SC_IN_MUTE 7 /* MUTE output */
|
|
#define MSP_SC_TO_SCART1(in) (in)
|
|
#define MSP_SC_TO_SCART2(in) ((in) << 4)
|
|
|
|
/* Shortcut macros */
|
|
#define MSP_INPUT(sc, t, main_aux_src, sc_i2s_src) \
|
|
(MSP_SCART_TO_DSP(sc) | \
|
|
MSP_TUNER_TO_DSP(t) | \
|
|
MSP_DSP_TO_MAIN(main_aux_src) | \
|
|
MSP_DSP_TO_AUX(main_aux_src) | \
|
|
MSP_DSP_TO_SCART1(sc_i2s_src) | \
|
|
MSP_DSP_TO_SCART2(sc_i2s_src) | \
|
|
MSP_DSP_TO_I2S(sc_i2s_src))
|
|
#define MSP_INPUT_DEFAULT MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1, \
|
|
MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER)
|
|
#define MSP_OUTPUT(sc) \
|
|
(MSP_SC_TO_SCART1(sc) | \
|
|
MSP_SC_TO_SCART2(sc))
|
|
/* This equals the RESET position of the msp3400 ACB register */
|
|
#define MSP_OUTPUT_DEFAULT (MSP_SC_TO_SCART1(MSP_SC_IN_SCART3) | \
|
|
MSP_SC_TO_SCART2(MSP_SC_IN_DSP_SCART1))
|
|
|
|
/* Tuner inputs vs. msp version */
|
|
/* Chip TUNER_1 TUNER_2
|
|
-------------------------
|
|
msp34x0b y y
|
|
msp34x0c y y
|
|
msp34x0d y y
|
|
msp34x5d y n
|
|
msp34x7d y n
|
|
msp34x0g y y
|
|
msp34x1g y y
|
|
msp34x2g y y
|
|
msp34x5g y n
|
|
msp34x7g y n
|
|
msp44x0g y y
|
|
msp44x8g y y
|
|
*/
|
|
|
|
/* SCART inputs vs. msp version */
|
|
/* Chip SC1 SC2 SC3 SC4
|
|
-------------------------
|
|
msp34x0b y y y n
|
|
msp34x0c y y y n
|
|
msp34x0d y y y y
|
|
msp34x5d y y n n
|
|
msp34x7d y n n n
|
|
msp34x0g y y y y
|
|
msp34x1g y y y y
|
|
msp34x2g y y y y
|
|
msp34x5g y y n n
|
|
msp34x7g y n n n
|
|
msp44x0g y y y y
|
|
msp44x8g y y y y
|
|
*/
|
|
|
|
/* DSP inputs vs. msp version (tuner and SCART inputs are always available) */
|
|
/* Chip I2S1 I2S2 I2S3 MAIN_AVC MAIN AUX
|
|
------------------------------------------
|
|
msp34x0b y n n n n n
|
|
msp34x0c y y n n n n
|
|
msp34x0d y y n n n n
|
|
msp34x5d y y n n n n
|
|
msp34x7d n n n n n n
|
|
msp34x0g y y n n n n
|
|
msp34x1g y y n n n n
|
|
msp34x2g y y n y y y
|
|
msp34x5g y y n n n n
|
|
msp34x7g n n n n n n
|
|
msp44x0g y y y y y y
|
|
msp44x8g y y y n n n
|
|
*/
|
|
|
|
/* DSP outputs vs. msp version */
|
|
/* Chip MAIN AUX SCART1 SCART2 I2S
|
|
------------------------------------
|
|
msp34x0b y y y n y
|
|
msp34x0c y y y n y
|
|
msp34x0d y y y y y
|
|
msp34x5d y n y n y
|
|
msp34x7d y n y n n
|
|
msp34x0g y y y y y
|
|
msp34x1g y y y y y
|
|
msp34x2g y y y y y
|
|
msp34x5g y n y n y
|
|
msp34x7g y n y n n
|
|
msp44x0g y y y y y
|
|
msp44x8g y y y y y
|
|
*/
|
|
|
|
#endif /* MSP3400_H */
|
|
|