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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-11-26 11:56:07 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-12-04 16:50:53 +0000 |
| commit | a91eb199e4dc8a2ab3fb7a53f1a23ce82b29fc04 (patch) | |
| tree | f0ef6ed46e0ed0e6408d2c21e5e7b294c76fbf88 /include/sound/wm8904.h | |
| parent | d033c36ae5cec22c893c710cd026fb732c4086b9 (diff) | |
| download | linux-rpi-a91eb199e4dc8a2ab3fb7a53f1a23ce82b29fc04.tar.gz linux-rpi-a91eb199e4dc8a2ab3fb7a53f1a23ce82b29fc04.tar.bz2 linux-rpi-a91eb199e4dc8a2ab3fb7a53f1a23ce82b29fc04.zip | |
ASoC: Initial WM8904 CODEC driver
The WM8904 is a high performance ultra-low power stereo CODEC
optimised for portable audio applications, with features including
a class W amplifier, FLL with free running mode, Mobile ReTune and
ground referenced headphone and line outputs.
Support for some features, most particularly the digital microphone
interface, is not yet present.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/sound/wm8904.h')
| -rw-r--r-- | include/sound/wm8904.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/sound/wm8904.h b/include/sound/wm8904.h new file mode 100644 index 000000000000..d66575a601be --- /dev/null +++ b/include/sound/wm8904.h @@ -0,0 +1,57 @@ +/* + * Platform data for WM8904 + * + * Copyright 2009 Wolfson Microelectronics PLC. + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * 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. + * + */ + +#ifndef __MFD_WM8994_PDATA_H__ +#define __MFD_WM8994_PDATA_H__ + +#define WM8904_DRC_REGS 4 +#define WM8904_EQ_REGS 25 + +/** + * DRC configurations are specified with a label and a set of register + * values to write (the enable bits will be ignored). At runtime an + * enumerated control will be presented for each DRC block allowing + * the user to choose the configration to use. + * + * Configurations may be generated by hand or by using the DRC control + * panel provided by the WISCE - see http://www.wolfsonmicro.com/wisce/ + * for details. + */ +struct wm8904_drc_cfg { + const char *name; + u16 regs[WM8904_DRC_REGS]; +}; + +/** + * ReTune Mobile configurations are specified with a label, sample + * rate and set of values to write (the enable bits will be ignored). + * + * Configurations are expected to be generated using the ReTune Mobile + * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/ + */ +struct wm8904_retune_mobile_cfg { + const char *name; + unsigned int rate; + u16 regs[WM8904_EQ_REGS]; +}; + +struct wm8904_pdata { + int num_drc_cfgs; + struct wm8904_drc_cfg *drc_cfgs; + + int num_retune_mobile_cfgs; + struct wm8904_retune_mobile_cfg *retune_mobile_cfgs; +}; + +#endif |