We need this in order to easily reuse register definitions
and some functions with Sound Open Firmware driver.
According to Documentation/process/license-rules.rst:
"Dual BSD/GPL" The module is dual licensed under a GPL v2
variant or BSD license choice. The exact
variant of the BSD license can only be
determined via the license information
in the corresponding source files.
so use "Dual BSD/GPL" for license string.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20230803072638.640789-1-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
fsl_micfil_use_verid() can help to parse the version info in VERID and
PARAM registers. Since the two registers are added only on i.MX93
platform, a member flag called use_verid is introduced to soc data
structure which indicates acquiring MICFIL version.
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230802052117.1293029-3-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
MICFIL IP is upgraded on i.MX93 platform. These new registers and new
bit definition are added to complete the register list.
Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20230802052117.1293029-2-chancel.liu@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The Hardware Voice Activity Detector (HWVAD) is a block
responsible for detect voice activity in a channel selected
by the user. It can be configured in Envelope-based or
Energy-based mode.
There are additional two interrupts for HWVAD, one is event
interrupt, another is error interrupt.
Enable hwvad in parallel with recording.
when voice activity detected, HWVAD will be disabled and
alsa control notification is triggerred.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1663925494-9941-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Previous default settings resulted in loose dynamic
range and low sound level.
New default configuration changes:
- outgain = 2
- quality mode = VLOW0
- dc remover = bypass
Signed-off-by: Irina Patru <ioana-irina.patru@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1656405589-29850-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The OSR (OverSampling Rate) setting is set once to the default value
and never changed throughout the driver. Nevertheless the value is
read back from the register for further calculations. Just use the
default value because we know what we have written.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-14-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Use GENMASK along with FIELD_PREP and FIELD_GET to access bitfields in
registers to straighten register access and to drop a lot of defines.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-6-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
No need to have defines for the mask of single bits. Also shift is
unused. Drop all these unnecessary defines.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-5-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Add Digital Audio Interface driver that convers PDM bitstream to PCM
format.
Features:
- Fixed filtering characteristics for audio application.
- Full or partial set of channels operation with individual enable control.
- Programmable PDM clock generator.
- Programmable decimation rate.
- 16-bit signed output result.
- Overall stopband attenuation more than 80dB.
- Overall passband ripple less than 0.2dB.
Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
