| /* |
| 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' field of the v4l2_routing struct: |
| |
| 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' field of the v4l2_routing struct 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 */ |
| |
