// SPDX-License-Identifier: GPL-2.0 /* * McBSP Sidetone support * * Copyright (C) 2004 Nokia Corporation * Author: Samuel Ortiz <[email protected]> * * Contact: Jarkko Nikula <[email protected]> * Peter Ujfalusi <[email protected]> */ #include <linux/module.h> #include <linux/init.h> #include <linux/device.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/slab.h> #include "omap-mcbsp.h" #include "omap-mcbsp-priv.h" /* OMAP3 sidetone control registers */ #define OMAP_ST_REG_REV … #define OMAP_ST_REG_SYSCONFIG … #define OMAP_ST_REG_IRQSTATUS … #define OMAP_ST_REG_IRQENABLE … #define OMAP_ST_REG_SGAINCR … #define OMAP_ST_REG_SFIRCR … #define OMAP_ST_REG_SSELCR … /********************** McBSP SSELCR bit definitions ***********************/ #define SIDETONEEN … /********************** McBSP Sidetone SYSCONFIG bit definitions ***********/ #define ST_AUTOIDLE … /********************** McBSP Sidetone SGAINCR bit definitions *************/ #define ST_CH0GAIN(value) … #define ST_CH1GAIN(value) … /********************** McBSP Sidetone SFIRCR bit definitions **************/ #define ST_FIRCOEFF(value) … /********************** McBSP Sidetone SSELCR bit definitions **************/ #define ST_SIDETONEEN … #define ST_COEFFWREN … #define ST_COEFFWRDONE … struct omap_mcbsp_st_data { … }; static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) { … } static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg) { … } #define MCBSP_ST_READ(mcbsp, reg) … #define MCBSP_ST_WRITE(mcbsp, reg, val) … static void omap_mcbsp_st_on(struct omap_mcbsp *mcbsp) { … } static void omap_mcbsp_st_off(struct omap_mcbsp *mcbsp) { … } static void omap_mcbsp_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) { … } static void omap_mcbsp_st_chgain(struct omap_mcbsp *mcbsp) { … } static int omap_mcbsp_st_set_chgain(struct omap_mcbsp *mcbsp, int channel, s16 chgain) { … } static int omap_mcbsp_st_get_chgain(struct omap_mcbsp *mcbsp, int channel, s16 *chgain) { … } static int omap_mcbsp_st_enable(struct omap_mcbsp *mcbsp) { … } static int omap_mcbsp_st_disable(struct omap_mcbsp *mcbsp) { … } static int omap_mcbsp_st_is_enabled(struct omap_mcbsp *mcbsp) { … } static ssize_t st_taps_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t st_taps_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { … } static DEVICE_ATTR_RW(st_taps); static const struct attribute *sidetone_attrs[] = …; static const struct attribute_group sidetone_attr_group = …; int omap_mcbsp_st_start(struct omap_mcbsp *mcbsp) { … } int omap_mcbsp_st_stop(struct omap_mcbsp *mcbsp) { … } int omap_mcbsp_st_init(struct platform_device *pdev) { … } static int omap_mcbsp_st_info_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { … } #define OMAP_MCBSP_ST_CHANNEL_VOLUME(channel) … OMAP_MCBSP_ST_CHANNEL_VOLUME(…) OMAP_MCBSP_ST_CHANNEL_VOLUME(…) static int omap_mcbsp_st_put_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } static int omap_mcbsp_st_get_mode(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { … } #define OMAP_MCBSP_SOC_SINGLE_S16_EXT(xname, xmin, xmax, \ xhandler_get, xhandler_put) … #define OMAP_MCBSP_ST_CONTROLS(port) … OMAP_MCBSP_ST_CONTROLS(2); OMAP_MCBSP_ST_CONTROLS(3); int omap_mcbsp_st_add_controls(struct snd_soc_pcm_runtime *rtd, int port_id) { … } EXPORT_SYMBOL_GPL(…);
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