ASoC: sta350: Add codec driver
The TI STA350 is an integrated 2.1-channel power amplifier that is controllable over I2C. This patch adds an ASoC driver for it. At a glance, this chip is very similar to the STA320 for which a driver already exists. In details, however, the register maps contain subtle differences which made a whole new driver easier to write and maintain. [daniel@zonque.org: cleanups, DT property rework, rebased on asoc-next] Signed-off-by: Sven Brandau <brandau@gmx.de> Signed-off-by: Daniel Mack <daniel@zonque.org> Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Sven Brandau
Mark Brown
parent
c9eaa447e7
commit
2439ea1f0f
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@ -0,0 +1,107 @@
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STA350 audio CODEC
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The driver for this device only supports I2C.
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Required properties:
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- compatible: "st,sta350"
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- reg: the I2C address of the device for I2C
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- reset-gpios: a GPIO spec for the reset pin. If specified, it will be
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deasserted before communication to the codec starts.
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- power-down-gpios: a GPIO spec for the power down pin. If specified,
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it will be deasserted before communication to the codec
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starts.
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- vdd-dig-supply: regulator spec, providing 3.3V
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- vdd-pll-supply: regulator spec, providing 3.3V
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- vcc-supply: regulator spec, providing 5V - 26V
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Optional properties:
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- st,output-conf: number, Selects the output configuration:
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0: 2-channel (full-bridge) power, 2-channel data-out
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1: 2 (half-bridge). 1 (full-bridge) on-board power
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2: 2 Channel (Full-Bridge) Power, 1 Channel FFX
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3: 1 Channel Mono-Parallel
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If parameter is missing, mode 0 will be enabled.
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- st,ch1-output-mapping: Channel 1 output mapping
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- st,ch2-output-mapping: Channel 2 output mapping
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- st,ch3-output-mapping: Channel 3 output mapping
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0: Channel 1
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1: Channel 2
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2: Channel 3
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If parameter is missing, channel 1 is choosen.
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- st,thermal-warning-recover:
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If present, thermal warning recovery is enabled.
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- st,thermal-warning-adjustment:
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If present, thermal warning adjustment is enabled.
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- st,fault-detect-recovery:
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If present, then fault recovery will be enabled.
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- st,ffx-power-output-mode: string
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The FFX power output mode selects how the FFX output timing is
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configured. Must be one of these values:
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- "drop-compensation"
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- "tapered-compensation"
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- "full-power-mode"
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- "variable-drop-compensation" (default)
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- st,drop-compensation-ns: number
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Only required for "st,ffx-power-output-mode" ==
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"variable-drop-compensation".
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Specifies the drop compensation in nanoseconds.
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The value must be in the range of 0..300, and only
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multiples of 20 are allowed. Default is 140ns.
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- st,overcurrent-warning-adjustment:
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If present, overcurrent warning adjustment is enabled.
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- st,max-power-use-mpcc:
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If present, then MPCC bits are used for MPC coefficients,
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otherwise standard MPC coefficients are used.
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- st,max-power-corr:
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If present, power bridge correction for THD reduction near maximum
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power output is enabled.
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- st,am-reduction-mode:
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If present, FFX mode runs in AM reduction mode, otherwise normal
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FFX mode is used.
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- st,odd-pwm-speed-mode:
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If present, PWM speed mode run on odd speed mode (341.3 kHz) on all
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channels. If not present, normal PWM spped mode (384 kHz) will be used.
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- st,distortion-compensation:
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If present, distortion compensation variable uses DCC coefficient.
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If not present, preset DC coefficient is used.
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- st,invalid-input-detect-mute:
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If not present, automatic invalid input detect mute is enabled.
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Example:
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codec: sta350@38 {
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compatible = "st,sta350";
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reg = <0x1c>;
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reset-gpios = <&gpio1 19 0>;
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power-down-gpios = <&gpio1 16 0>;
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st,output-conf = <0x3>; // set output to 2-channel
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// (full-bridge) power,
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// 2-channel data-out
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st,ch1-output-mapping = <0>; // set channel 1 output ch 1
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st,ch2-output-mapping = <0>; // set channel 2 output ch 1
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st,ch3-output-mapping = <0>; // set channel 3 output ch 1
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st,max-power-correction; // enables power bridge
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// correction for THD reduction
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// near maximum power output
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st,invalid-input-detect-mute; // mute if no valid digital
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// audio signal is provided.
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};
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@ -0,0 +1,52 @@
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/*
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* Platform data for ST STA350 ASoC codec driver.
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*
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* Copyright: 2014 Raumfeld GmbH
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* Author: Sven Brandau <info@brandau.biz>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __LINUX_SND__STA350_H
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#define __LINUX_SND__STA350_H
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#define STA350_OCFG_2CH 0
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#define STA350_OCFG_2_1CH 1
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#define STA350_OCFG_1CH 3
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#define STA350_OM_CH1 0
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#define STA350_OM_CH2 1
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#define STA350_OM_CH3 2
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#define STA350_THERMAL_ADJUSTMENT_ENABLE 1
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#define STA350_THERMAL_RECOVERY_ENABLE 2
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#define STA350_FAULT_DETECT_RECOVERY_BYPASS 1
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#define STA350_FFX_PM_DROP_COMP 0
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#define STA350_FFX_PM_TAPERED_COMP 1
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#define STA350_FFX_PM_FULL_POWER 2
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#define STA350_FFX_PM_VARIABLE_DROP_COMP 3
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struct sta350_platform_data {
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u8 output_conf;
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u8 ch1_output_mapping;
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u8 ch2_output_mapping;
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u8 ch3_output_mapping;
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u8 ffx_power_output_mode;
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u8 drop_compensation_ns;
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unsigned int thermal_warning_recovery:1;
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unsigned int thermal_warning_adjustment:1;
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unsigned int fault_detect_recovery:1;
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unsigned int oc_warning_adjustment:1;
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unsigned int max_power_use_mpcc:1;
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unsigned int max_power_correction:1;
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unsigned int am_reduction_mode:1;
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unsigned int odd_pwm_speed_mode:1;
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unsigned int distortion_compensation:1;
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unsigned int invalid_input_detect_mute:1;
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};
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#endif /* __LINUX_SND__STA350_H */
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@ -80,6 +80,7 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_SSM2602_SPI if SPI_MASTER
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select SND_SOC_SSM2602_I2C if I2C
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select SND_SOC_STA32X if I2C
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select SND_SOC_STA350 if I2C
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select SND_SOC_STA529 if I2C
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select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
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select SND_SOC_TAS5086 if I2C
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@ -435,6 +436,10 @@ config SND_SOC_SSM2602_I2C
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config SND_SOC_STA32X
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tristate
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config SND_SOC_STA350
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tristate "STA350 speaker amplifier"
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depends on I2C
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config SND_SOC_STA529
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tristate
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@ -74,6 +74,7 @@ snd-soc-ssm2602-objs := ssm2602.o
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snd-soc-ssm2602-spi-objs := ssm2602-spi.o
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snd-soc-ssm2602-i2c-objs := ssm2602-i2c.o
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snd-soc-sta32x-objs := sta32x.o
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snd-soc-sta350-objs := sta350.o
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snd-soc-sta529-objs := sta529.o
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snd-soc-stac9766-objs := stac9766.o
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snd-soc-tas5086-objs := tas5086.o
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@ -221,6 +222,7 @@ obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o
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obj-$(CONFIG_SND_SOC_SSM2602_SPI) += snd-soc-ssm2602-spi.o
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obj-$(CONFIG_SND_SOC_SSM2602_I2C) += snd-soc-ssm2602-i2c.o
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obj-$(CONFIG_SND_SOC_STA32X) += snd-soc-sta32x.o
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obj-$(CONFIG_SND_SOC_STA350) += snd-soc-sta350.o
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obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o
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obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o
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obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,228 @@
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/*
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* Codec driver for ST STA350 2.1-channel high-efficiency digital audio system
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*
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* Copyright: 2011 Raumfeld GmbH
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* Author: Sven Brandau <info@brandau.biz>
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*
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* based on code from:
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* Raumfeld GmbH
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* Johannes Stezenbach <js@sig21.net>
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* Wolfson Microelectronics PLC.
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* Mark Brown <broonie@opensource.wolfsonmicro.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _ASOC_STA_350_H
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#define _ASOC_STA_350_H
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/* STA50 register addresses */
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#define STA350_REGISTER_COUNT 0x4D
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#define STA350_COEF_COUNT 62
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#define STA350_CONFA 0x00
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#define STA350_CONFB 0x01
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#define STA350_CONFC 0x02
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#define STA350_CONFD 0x03
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#define STA350_CONFE 0x04
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#define STA350_CONFF 0x05
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#define STA350_MMUTE 0x06
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#define STA350_MVOL 0x07
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#define STA350_C1VOL 0x08
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#define STA350_C2VOL 0x09
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#define STA350_C3VOL 0x0a
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#define STA350_AUTO1 0x0b
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#define STA350_AUTO2 0x0c
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#define STA350_AUTO3 0x0d
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#define STA350_C1CFG 0x0e
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#define STA350_C2CFG 0x0f
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#define STA350_C3CFG 0x10
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#define STA350_TONE 0x11
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#define STA350_L1AR 0x12
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#define STA350_L1ATRT 0x13
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#define STA350_L2AR 0x14
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#define STA350_L2ATRT 0x15
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#define STA350_CFADDR2 0x16
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#define STA350_B1CF1 0x17
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#define STA350_B1CF2 0x18
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#define STA350_B1CF3 0x19
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#define STA350_B2CF1 0x1a
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#define STA350_B2CF2 0x1b
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#define STA350_B2CF3 0x1c
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#define STA350_A1CF1 0x1d
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#define STA350_A1CF2 0x1e
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#define STA350_A1CF3 0x1f
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#define STA350_A2CF1 0x20
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#define STA350_A2CF2 0x21
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#define STA350_A2CF3 0x22
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#define STA350_B0CF1 0x23
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#define STA350_B0CF2 0x24
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#define STA350_B0CF3 0x25
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#define STA350_CFUD 0x26
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#define STA350_MPCC1 0x27
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#define STA350_MPCC2 0x28
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#define STA350_DCC1 0x29
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#define STA350_DCC2 0x2a
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#define STA350_FDRC1 0x2b
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#define STA350_FDRC2 0x2c
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#define STA350_STATUS 0x2d
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/* reserved: 0x2d - 0x30 */
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#define STA350_EQCFG 0x31
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#define STA350_EATH1 0x32
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#define STA350_ERTH1 0x33
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#define STA350_EATH2 0x34
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#define STA350_ERTH2 0x35
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#define STA350_CONFX 0x36
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#define STA350_SVCA 0x37
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#define STA350_SVCB 0x38
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#define STA350_RMS0A 0x39
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#define STA350_RMS0B 0x3a
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#define STA350_RMS0C 0x3b
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#define STA350_RMS1A 0x3c
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#define STA350_RMS1B 0x3d
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#define STA350_RMS1C 0x3e
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#define STA350_EVOLRES 0x3f
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/* reserved: 0x40 - 0x47 */
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#define STA350_NSHAPE 0x48
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#define STA350_CTXB4B1 0x49
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#define STA350_CTXB7B5 0x4a
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#define STA350_MISC1 0x4b
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#define STA350_MISC2 0x4c
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/* 0x00 CONFA */
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#define STA350_CONFA_MCS_MASK 0x03
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#define STA350_CONFA_MCS_SHIFT 0
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#define STA350_CONFA_IR_MASK 0x18
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#define STA350_CONFA_IR_SHIFT 3
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#define STA350_CONFA_TWRB BIT(5)
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#define STA350_CONFA_TWAB BIT(6)
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#define STA350_CONFA_FDRB BIT(7)
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/* 0x01 CONFB */
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#define STA350_CONFB_SAI_MASK 0x0f
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#define STA350_CONFB_SAI_SHIFT 0
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#define STA350_CONFB_SAIFB BIT(4)
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#define STA350_CONFB_DSCKE BIT(5)
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#define STA350_CONFB_C1IM BIT(6)
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#define STA350_CONFB_C2IM BIT(7)
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/* 0x02 CONFC */
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#define STA350_CONFC_OM_MASK 0x03
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#define STA350_CONFC_OM_SHIFT 0
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#define STA350_CONFC_CSZ_MASK 0x3c
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#define STA350_CONFC_CSZ_SHIFT 2
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#define STA350_CONFC_OCRB BIT(7)
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/* 0x03 CONFD */
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#define STA350_CONFD_HPB_SHIFT 0
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#define STA350_CONFD_DEMP_SHIFT 1
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#define STA350_CONFD_DSPB_SHIFT 2
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#define STA350_CONFD_PSL_SHIFT 3
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#define STA350_CONFD_BQL_SHIFT 4
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#define STA350_CONFD_DRC_SHIFT 5
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#define STA350_CONFD_ZDE_SHIFT 6
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#define STA350_CONFD_SME_SHIFT 7
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/* 0x04 CONFE */
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#define STA350_CONFE_MPCV BIT(0)
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#define STA350_CONFE_MPCV_SHIFT 0
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#define STA350_CONFE_MPC BIT(1)
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#define STA350_CONFE_MPC_SHIFT 1
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#define STA350_CONFE_NSBW BIT(2)
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#define STA350_CONFE_NSBW_SHIFT 2
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#define STA350_CONFE_AME BIT(3)
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#define STA350_CONFE_AME_SHIFT 3
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#define STA350_CONFE_PWMS BIT(4)
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#define STA350_CONFE_PWMS_SHIFT 4
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#define STA350_CONFE_DCCV BIT(5)
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#define STA350_CONFE_DCCV_SHIFT 5
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#define STA350_CONFE_ZCE BIT(6)
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#define STA350_CONFE_ZCE_SHIFT 6
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#define STA350_CONFE_SVE BIT(7)
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#define STA350_CONFE_SVE_SHIFT 7
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/* 0x05 CONFF */
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#define STA350_CONFF_OCFG_MASK 0x03
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#define STA350_CONFF_OCFG_SHIFT 0
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#define STA350_CONFF_IDE BIT(2)
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#define STA350_CONFF_BCLE BIT(3)
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#define STA350_CONFF_LDTE BIT(4)
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#define STA350_CONFF_ECLE BIT(5)
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#define STA350_CONFF_PWDN BIT(6)
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#define STA350_CONFF_EAPD BIT(7)
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/* 0x06 MMUTE */
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#define STA350_MMUTE_MMUTE 0x01
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#define STA350_MMUTE_MMUTE_SHIFT 0
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#define STA350_MMUTE_C1M 0x02
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#define STA350_MMUTE_C1M_SHIFT 1
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#define STA350_MMUTE_C2M 0x04
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#define STA350_MMUTE_C2M_SHIFT 2
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#define STA350_MMUTE_C3M 0x08
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#define STA350_MMUTE_C3M_SHIFT 3
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#define STA350_MMUTE_LOC_MASK 0xC0
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#define STA350_MMUTE_LOC_SHIFT 6
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/* 0x0b AUTO1 */
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#define STA350_AUTO1_AMGC_MASK 0x30
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#define STA350_AUTO1_AMGC_SHIFT 4
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/* 0x0c AUTO2 */
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#define STA350_AUTO2_AMAME 0x01
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#define STA350_AUTO2_AMAM_MASK 0x0e
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#define STA350_AUTO2_AMAM_SHIFT 1
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#define STA350_AUTO2_XO_MASK 0xf0
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#define STA350_AUTO2_XO_SHIFT 4
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/* 0x0d AUTO3 */
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#define STA350_AUTO3_PEQ_MASK 0x1f
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#define STA350_AUTO3_PEQ_SHIFT 0
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/* 0x0e 0x0f 0x10 CxCFG */
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#define STA350_CxCFG_TCB_SHIFT 0
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#define STA350_CxCFG_EQBP_SHIFT 1
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#define STA350_CxCFG_VBP_SHIFT 2
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#define STA350_CxCFG_BO_SHIFT 3
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#define STA350_CxCFG_LS_SHIFT 4
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#define STA350_CxCFG_OM_MASK 0xc0
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#define STA350_CxCFG_OM_SHIFT 6
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/* 0x11 TONE */
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#define STA350_TONE_BTC_SHIFT 0
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#define STA350_TONE_TTC_SHIFT 4
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/* 0x12 0x13 0x14 0x15 limiter attack/release */
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#define STA350_LxA_SHIFT 0
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#define STA350_LxR_SHIFT 4
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/* 0x26 CFUD */
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#define STA350_CFUD_W1 0x01
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#define STA350_CFUD_WA 0x02
|
||||
#define STA350_CFUD_R1 0x04
|
||||
#define STA350_CFUD_RA 0x08
|
||||
|
||||
|
||||
/* biquad filter coefficient table offsets */
|
||||
#define STA350_C1_BQ_BASE 0
|
||||
#define STA350_C2_BQ_BASE 20
|
||||
#define STA350_CH_BQ_NUM 4
|
||||
#define STA350_BQ_NUM_COEF 5
|
||||
#define STA350_XO_HP_BQ_BASE 40
|
||||
#define STA350_XO_LP_BQ_BASE 45
|
||||
#define STA350_C1_PRESCALE 50
|
||||
#define STA350_C2_PRESCALE 51
|
||||
#define STA350_C1_POSTSCALE 52
|
||||
#define STA350_C2_POSTSCALE 53
|
||||
#define STA350_C3_POSTSCALE 54
|
||||
#define STA350_TW_POSTSCALE 55
|
||||
#define STA350_C1_MIX1 56
|
||||
#define STA350_C1_MIX2 57
|
||||
#define STA350_C2_MIX1 58
|
||||
#define STA350_C2_MIX2 59
|
||||
#define STA350_C3_MIX1 60
|
||||
#define STA350_C3_MIX2 61
|
||||
|
||||
#endif /* _ASOC_STA_350_H */
|
||||
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Reference in New Issue