Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/sound/soc/blackfin/bf5xx-tdm.h

26 lines
538 B
C
Raw Normal View History

ASoC: blackfin I2S(TDM mode) CPU DAI driver The I2S DAI driver for blackfin SPORT, but works in TDM mode. I2S is not a special case of TDM with only left and right two slots for SPORT interface. I2S coordinates with TDM in SPORT, but not a part of TDM. TDM require different hardware configuration with I2S, not only different slot number. One is "Stereo Serial Operation" mode of SPORT, the other one is "Multichannel Operation" mode. They are incompatible at the same time. Hardware and DMA description and data transfer flow are much different for I2S and TDM. Merging them as a whole will be very ugly and difficult to maintain. So we don't define a new DAI type, but give two DAI instances for standard I2S and TDM, both in I2S-family DAI type. The TDM instance still uses the I2S-family DAI type. Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-07-27 04:06:39 -06:00
/*
ASoC: Fix checkpatch issues and typos of ad1938 codec and bf5xx-tdm dai 1. fix "line over 80 characters" checkpatch warnings 2. ‘DMA_nnBIT_MASK’ is deprecated, use DMA_BIT_MASK instead 3. fix typos Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-07-29 01:03:16 -06:00
* sound/soc/blackfin/bf5xx-tdm.h
ASoC: blackfin I2S(TDM mode) CPU DAI driver The I2S DAI driver for blackfin SPORT, but works in TDM mode. I2S is not a special case of TDM with only left and right two slots for SPORT interface. I2S coordinates with TDM in SPORT, but not a part of TDM. TDM require different hardware configuration with I2S, not only different slot number. One is "Stereo Serial Operation" mode of SPORT, the other one is "Multichannel Operation" mode. They are incompatible at the same time. Hardware and DMA description and data transfer flow are much different for I2S and TDM. Merging them as a whole will be very ugly and difficult to maintain. So we don't define a new DAI type, but give two DAI instances for standard I2S and TDM, both in I2S-family DAI type. The TDM instance still uses the I2S-family DAI type. Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-07-27 04:06:39 -06:00
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _BF5XX_TDM_H
#define _BF5XX_TDM_H
ASoC: use set_channel_map api to reorder channels for AD1938 and AD1836 Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-09-14 21:24:52 -06:00
#define BFIN_TDM_DAI_MAX_SLOTS 8
struct bf5xx_tdm_port {
u16 tcr1;
u16 rcr1;
u16 tcr2;
u16 rcr2;
unsigned int tx_map[BFIN_TDM_DAI_MAX_SLOTS];
unsigned int rx_map[BFIN_TDM_DAI_MAX_SLOTS];
int configured;
};
ASoC: blackfin I2S(TDM mode) CPU DAI driver The I2S DAI driver for blackfin SPORT, but works in TDM mode. I2S is not a special case of TDM with only left and right two slots for SPORT interface. I2S coordinates with TDM in SPORT, but not a part of TDM. TDM require different hardware configuration with I2S, not only different slot number. One is "Stereo Serial Operation" mode of SPORT, the other one is "Multichannel Operation" mode. They are incompatible at the same time. Hardware and DMA description and data transfer flow are much different for I2S and TDM. Merging them as a whole will be very ugly and difficult to maintain. So we don't define a new DAI type, but give two DAI instances for standard I2S and TDM, both in I2S-family DAI type. The TDM instance still uses the I2S-family DAI type. Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-07-27 04:06:39 -06:00
extern struct snd_soc_dai bf5xx_tdm_dai;
#endif
Reference in a new issue Copy permalink