The patch

ASoC: omap-mcbsp: Re-arrange files for core McBSP and Sidetone function split

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

From 9c34d023dc35a4b3d005d94db512742dfcdc8f82 Mon Sep 17 00:00:00 2001

From: Peter Ujfalusi peter.ujfalusi@ti.com Date: Thu, 8 Nov 2018 09:29:58 +0200 Subject: [PATCH] ASoC: omap-mcbsp: Re-arrange files for core McBSP and Sidetone function split

The mcbsp.c was copied a while back from arch/arm/plat-omap/mcbsp.c and it contained a mix of McBSP and McBSP sidetone functions.

Create new file structure with the following split: omap-mcbsp.c - McBSP related functions omap-mcbsp-st.c - McBSP sidetone functionality omap-mcbsp-priv.h - Private header for internal use omap-mcbsp.h - Header for user drivers

I have tried to do the code move with minimal code change, cleanup patches can be based on the new structure.

Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com Acked-by: Jarkko Nikula jarkko.nikula@bitmer.com Tested-by: Jarkko Nikula jarkko.nikula@bitmer.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/omap/Makefile | 2 +- sound/soc/omap/mcbsp.c | 1094 ----------------- sound/soc/omap/{mcbsp.h => omap-mcbsp-priv.h} | 126 +- sound/soc/omap/omap-mcbsp-st.c | 516 ++++++++ sound/soc/omap/omap-mcbsp.c | 838 ++++++++++--- sound/soc/omap/omap-mcbsp.h | 8 +- 6 files changed, 1269 insertions(+), 1315 deletions(-) delete mode 100644 sound/soc/omap/mcbsp.c rename sound/soc/omap/{mcbsp.h => omap-mcbsp-priv.h} (70%) create mode 100644 sound/soc/omap/omap-mcbsp-st.c

diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile index af50cdd6eea9..d005338dd13c 100644 --- a/sound/soc/omap/Makefile +++ b/sound/soc/omap/Makefile @@ -2,7 +2,7 @@ # OMAP Platform Support snd-soc-sdma-objs := sdma-pcm.o snd-soc-omap-dmic-objs := omap-dmic.o -snd-soc-omap-mcbsp-objs := omap-mcbsp.o mcbsp.o +snd-soc-omap-mcbsp-objs := omap-mcbsp.o omap-mcbsp-st.o snd-soc-omap-mcpdm-objs := omap-mcpdm.o snd-soc-omap-hdmi-audio-objs := omap-hdmi-audio.o

diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c deleted file mode 100644 index b19168f5c110..000000000000 --- a/sound/soc/omap/mcbsp.c +++ /dev/null @@ -1,1094 +0,0 @@ -/* - * sound/soc/omap/mcbsp.c - * - * Copyright (C) 2004 Nokia Corporation - * Author: Samuel Ortiz samuel.ortiz@nokia.com - * - * Contact: Jarkko Nikula jarkko.nikula@bitmer.com - * Peter Ujfalusi peter.ujfalusi@ti.com - * - * 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. - * - * Multichannel mode not supported. - */ - -#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 <linux/pm_runtime.h> - -#include <linux/platform_data/asoc-ti-mcbsp.h> - -#include "mcbsp.h" - -static void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) -{ - void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step; - - if (mcbsp->pdata->reg_size == 2) { - ((u16 *)mcbsp->reg_cache)[reg] = (u16)val; - writew_relaxed((u16)val, addr); - } else { - ((u32 *)mcbsp->reg_cache)[reg] = val; - writel_relaxed(val, addr); - } -} - -static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache) -{ - void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step; - - if (mcbsp->pdata->reg_size == 2) { - return !from_cache ? readw_relaxed(addr) : - ((u16 *)mcbsp->reg_cache)[reg]; - } else { - return !from_cache ? readl_relaxed(addr) : - ((u32 *)mcbsp->reg_cache)[reg]; - } -} - -static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) -{ - writel_relaxed(val, mcbsp->st_data->io_base_st + reg); -} - -static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg) -{ - return readl_relaxed(mcbsp->st_data->io_base_st + reg); -} - -#define MCBSP_READ(mcbsp, reg) \ - omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 0) -#define MCBSP_WRITE(mcbsp, reg, val) \ - omap_mcbsp_write(mcbsp, OMAP_MCBSP_REG_##reg, val) -#define MCBSP_READ_CACHE(mcbsp, reg) \ - omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 1) - -#define MCBSP_ST_READ(mcbsp, reg) \ - omap_mcbsp_st_read(mcbsp, OMAP_ST_REG_##reg) -#define MCBSP_ST_WRITE(mcbsp, reg, val) \ - omap_mcbsp_st_write(mcbsp, OMAP_ST_REG_##reg, val) - -static void omap_mcbsp_dump_reg(struct omap_mcbsp *mcbsp) -{ - dev_dbg(mcbsp->dev, "**** McBSP%d regs ****\n", mcbsp->id); - dev_dbg(mcbsp->dev, "DRR2: 0x%04x\n", - MCBSP_READ(mcbsp, DRR2)); - dev_dbg(mcbsp->dev, "DRR1: 0x%04x\n", - MCBSP_READ(mcbsp, DRR1)); - dev_dbg(mcbsp->dev, "DXR2: 0x%04x\n", - MCBSP_READ(mcbsp, DXR2)); - dev_dbg(mcbsp->dev, "DXR1: 0x%04x\n", - MCBSP_READ(mcbsp, DXR1)); - dev_dbg(mcbsp->dev, "SPCR2: 0x%04x\n", - MCBSP_READ(mcbsp, SPCR2)); - dev_dbg(mcbsp->dev, "SPCR1: 0x%04x\n", - MCBSP_READ(mcbsp, SPCR1)); - dev_dbg(mcbsp->dev, "RCR2: 0x%04x\n", - MCBSP_READ(mcbsp, RCR2)); - dev_dbg(mcbsp->dev, "RCR1: 0x%04x\n", - MCBSP_READ(mcbsp, RCR1)); - dev_dbg(mcbsp->dev, "XCR2: 0x%04x\n", - MCBSP_READ(mcbsp, XCR2)); - dev_dbg(mcbsp->dev, "XCR1: 0x%04x\n", - MCBSP_READ(mcbsp, XCR1)); - dev_dbg(mcbsp->dev, "SRGR2: 0x%04x\n", - MCBSP_READ(mcbsp, SRGR2)); - dev_dbg(mcbsp->dev, "SRGR1: 0x%04x\n", - MCBSP_READ(mcbsp, SRGR1)); - dev_dbg(mcbsp->dev, "PCR0: 0x%04x\n", - MCBSP_READ(mcbsp, PCR0)); - dev_dbg(mcbsp->dev, "***********************\n"); -} - -static irqreturn_t omap_mcbsp_irq_handler(int irq, void *data) -{ - struct omap_mcbsp *mcbsp = data; - u16 irqst; - - irqst = MCBSP_READ(mcbsp, IRQST); - dev_dbg(mcbsp->dev, "IRQ callback : 0x%x\n", irqst); - - if (irqst & RSYNCERREN) - dev_err(mcbsp->dev, "RX Frame Sync Error!\n"); - if (irqst & RFSREN) - dev_dbg(mcbsp->dev, "RX Frame Sync\n"); - if (irqst & REOFEN) - dev_dbg(mcbsp->dev, "RX End Of Frame\n"); - if (irqst & RRDYEN) - dev_dbg(mcbsp->dev, "RX Buffer Threshold Reached\n"); - if (irqst & RUNDFLEN) - dev_err(mcbsp->dev, "RX Buffer Underflow!\n"); - if (irqst & ROVFLEN) - dev_err(mcbsp->dev, "RX Buffer Overflow!\n"); - - if (irqst & XSYNCERREN) - dev_err(mcbsp->dev, "TX Frame Sync Error!\n"); - if (irqst & XFSXEN) - dev_dbg(mcbsp->dev, "TX Frame Sync\n"); - if (irqst & XEOFEN) - dev_dbg(mcbsp->dev, "TX End Of Frame\n"); - if (irqst & XRDYEN) - dev_dbg(mcbsp->dev, "TX Buffer threshold Reached\n"); - if (irqst & XUNDFLEN) - dev_err(mcbsp->dev, "TX Buffer Underflow!\n"); - if (irqst & XOVFLEN) - dev_err(mcbsp->dev, "TX Buffer Overflow!\n"); - if (irqst & XEMPTYEOFEN) - dev_dbg(mcbsp->dev, "TX Buffer empty at end of frame\n"); - - MCBSP_WRITE(mcbsp, IRQST, irqst); - - return IRQ_HANDLED; -} - -static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *data) -{ - struct omap_mcbsp *mcbsp = data; - u16 irqst_spcr2; - - irqst_spcr2 = MCBSP_READ(mcbsp, SPCR2); - dev_dbg(mcbsp->dev, "TX IRQ callback : 0x%x\n", irqst_spcr2); - - if (irqst_spcr2 & XSYNC_ERR) { - dev_err(mcbsp->dev, "TX Frame Sync Error! : 0x%x\n", - irqst_spcr2); - /* Writing zero to XSYNC_ERR clears the IRQ */ - MCBSP_WRITE(mcbsp, SPCR2, MCBSP_READ_CACHE(mcbsp, SPCR2)); - } - - return IRQ_HANDLED; -} - -static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *data) -{ - struct omap_mcbsp *mcbsp = data; - u16 irqst_spcr1; - - irqst_spcr1 = MCBSP_READ(mcbsp, SPCR1); - dev_dbg(mcbsp->dev, "RX IRQ callback : 0x%x\n", irqst_spcr1); - - if (irqst_spcr1 & RSYNC_ERR) { - dev_err(mcbsp->dev, "RX Frame Sync Error! : 0x%x\n", - irqst_spcr1); - /* Writing zero to RSYNC_ERR clears the IRQ */ - MCBSP_WRITE(mcbsp, SPCR1, MCBSP_READ_CACHE(mcbsp, SPCR1)); - } - - return IRQ_HANDLED; -} - -/* - * omap_mcbsp_config simply write a config to the - * appropriate McBSP. - * You either call this function or set the McBSP registers - * by yourself before calling omap_mcbsp_start(). - */ -void omap_mcbsp_config(struct omap_mcbsp *mcbsp, - const struct omap_mcbsp_reg_cfg *config) -{ - dev_dbg(mcbsp->dev, "Configuring McBSP%d phys_base: 0x%08lx\n", - mcbsp->id, mcbsp->phys_base); - - /* We write the given config */ - MCBSP_WRITE(mcbsp, SPCR2, config->spcr2); - MCBSP_WRITE(mcbsp, SPCR1, config->spcr1); - MCBSP_WRITE(mcbsp, RCR2, config->rcr2); - MCBSP_WRITE(mcbsp, RCR1, config->rcr1); - MCBSP_WRITE(mcbsp, XCR2, config->xcr2); - MCBSP_WRITE(mcbsp, XCR1, config->xcr1); - MCBSP_WRITE(mcbsp, SRGR2, config->srgr2); - MCBSP_WRITE(mcbsp, SRGR1, config->srgr1); - MCBSP_WRITE(mcbsp, MCR2, config->mcr2); - MCBSP_WRITE(mcbsp, MCR1, config->mcr1); - MCBSP_WRITE(mcbsp, PCR0, config->pcr0); - if (mcbsp->pdata->has_ccr) { - MCBSP_WRITE(mcbsp, XCCR, config->xccr); - MCBSP_WRITE(mcbsp, RCCR, config->rccr); - } - /* Enable wakeup behavior */ - if (mcbsp->pdata->has_wakeup) - MCBSP_WRITE(mcbsp, WAKEUPEN, XRDYEN | RRDYEN); - - /* Enable TX/RX sync error interrupts by default */ - if (mcbsp->irq) - MCBSP_WRITE(mcbsp, IRQEN, RSYNCERREN | XSYNCERREN | - RUNDFLEN | ROVFLEN | XUNDFLEN | XOVFLEN); -} - -/** - * omap_mcbsp_dma_reg_params - returns the address of mcbsp data register - * @mcbsp: omap_mcbsp struct for the McBSP instance - * @stream: Stream direction (playback/capture) - * - * Returns the address of mcbsp data transmit register or data receive register - * to be used by DMA for transferring/receiving data - */ -static int omap_mcbsp_dma_reg_params(struct omap_mcbsp *mcbsp, - unsigned int stream) -{ - int data_reg; - - if (stream == SNDRV_PCM_STREAM_PLAYBACK) { - if (mcbsp->pdata->reg_size == 2) - data_reg = OMAP_MCBSP_REG_DXR1; - else - data_reg = OMAP_MCBSP_REG_DXR; - } else { - if (mcbsp->pdata->reg_size == 2) - data_reg = OMAP_MCBSP_REG_DRR1; - else - data_reg = OMAP_MCBSP_REG_DRR; - } - - return mcbsp->phys_dma_base + data_reg * mcbsp->pdata->reg_step; -} - -static void omap_st_on(struct omap_mcbsp *mcbsp) -{ - unsigned int w; - - if (mcbsp->pdata->force_ick_on) - mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, true); - - /* Disable Sidetone clock auto-gating for normal operation */ - w = MCBSP_ST_READ(mcbsp, SYSCONFIG); - MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w & ~(ST_AUTOIDLE)); - - /* Enable McBSP Sidetone */ - w = MCBSP_READ(mcbsp, SSELCR); - MCBSP_WRITE(mcbsp, SSELCR, w | SIDETONEEN); - - /* Enable Sidetone from Sidetone Core */ - w = MCBSP_ST_READ(mcbsp, SSELCR); - MCBSP_ST_WRITE(mcbsp, SSELCR, w | ST_SIDETONEEN); -} - -static void omap_st_off(struct omap_mcbsp *mcbsp) -{ - unsigned int w; - - w = MCBSP_ST_READ(mcbsp, SSELCR); - MCBSP_ST_WRITE(mcbsp, SSELCR, w & ~(ST_SIDETONEEN)); - - w = MCBSP_READ(mcbsp, SSELCR); - MCBSP_WRITE(mcbsp, SSELCR, w & ~(SIDETONEEN)); - - /* Enable Sidetone clock auto-gating to reduce power consumption */ - w = MCBSP_ST_READ(mcbsp, SYSCONFIG); - MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE); - - if (mcbsp->pdata->force_ick_on) - mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, false); -} - -static void omap_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) -{ - u16 val, i; - - val = MCBSP_ST_READ(mcbsp, SSELCR); - - if (val & ST_COEFFWREN) - MCBSP_ST_WRITE(mcbsp, SSELCR, val & ~(ST_COEFFWREN)); - - MCBSP_ST_WRITE(mcbsp, SSELCR, val | ST_COEFFWREN); - - for (i = 0; i < 128; i++) - MCBSP_ST_WRITE(mcbsp, SFIRCR, fir[i]); - - i = 0; - - val = MCBSP_ST_READ(mcbsp, SSELCR); - while (!(val & ST_COEFFWRDONE) && (++i < 1000)) - val = MCBSP_ST_READ(mcbsp, SSELCR); - - MCBSP_ST_WRITE(mcbsp, SSELCR, val & ~(ST_COEFFWREN)); - - if (i == 1000) - dev_err(mcbsp->dev, "McBSP FIR load error!\n"); -} - -static void omap_st_chgain(struct omap_mcbsp *mcbsp) -{ - u16 w; - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - - w = MCBSP_ST_READ(mcbsp, SSELCR); - - MCBSP_ST_WRITE(mcbsp, SGAINCR, ST_CH0GAIN(st_data->ch0gain) | \ - ST_CH1GAIN(st_data->ch1gain)); -} - -int omap_st_set_chgain(struct omap_mcbsp *mcbsp, int channel, s16 chgain) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - int ret = 0; - - if (!st_data) - return -ENOENT; - - spin_lock_irq(&mcbsp->lock); - if (channel == 0) - st_data->ch0gain = chgain; - else if (channel == 1) - st_data->ch1gain = chgain; - else - ret = -EINVAL; - - if (st_data->enabled) - omap_st_chgain(mcbsp); - spin_unlock_irq(&mcbsp->lock); - - return ret; -} - -int omap_st_get_chgain(struct omap_mcbsp *mcbsp, int channel, s16 *chgain) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - int ret = 0; - - if (!st_data) - return -ENOENT; - - spin_lock_irq(&mcbsp->lock); - if (channel == 0) - *chgain = st_data->ch0gain; - else if (channel == 1) - *chgain = st_data->ch1gain; - else - ret = -EINVAL; - spin_unlock_irq(&mcbsp->lock); - - return ret; -} - -static int omap_st_start(struct omap_mcbsp *mcbsp) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - - if (st_data->enabled && !st_data->running) { - omap_st_fir_write(mcbsp, st_data->taps); - omap_st_chgain(mcbsp); - - if (!mcbsp->free) { - omap_st_on(mcbsp); - st_data->running = 1; - } - } - - return 0; -} - -int omap_st_enable(struct omap_mcbsp *mcbsp) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - - if (!st_data) - return -ENODEV; - - spin_lock_irq(&mcbsp->lock); - st_data->enabled = 1; - omap_st_start(mcbsp); - spin_unlock_irq(&mcbsp->lock); - - return 0; -} - -static int omap_st_stop(struct omap_mcbsp *mcbsp) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - - if (st_data->running) { - if (!mcbsp->free) { - omap_st_off(mcbsp); - st_data->running = 0; - } - } - - return 0; -} - -int omap_st_disable(struct omap_mcbsp *mcbsp) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - int ret = 0; - - if (!st_data) - return -ENODEV; - - spin_lock_irq(&mcbsp->lock); - omap_st_stop(mcbsp); - st_data->enabled = 0; - spin_unlock_irq(&mcbsp->lock); - - return ret; -} - -int omap_st_is_enabled(struct omap_mcbsp *mcbsp) -{ - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - - if (!st_data) - return -ENODEV; - - return st_data->enabled; -} - -/* - * omap_mcbsp_set_rx_threshold configures the transmit threshold in words. - * The threshold parameter is 1 based, and it is converted (threshold - 1) - * for the THRSH2 register. - */ -void omap_mcbsp_set_tx_threshold(struct omap_mcbsp *mcbsp, u16 threshold) -{ - if (threshold && threshold <= mcbsp->max_tx_thres) - MCBSP_WRITE(mcbsp, THRSH2, threshold - 1); -} - -/* - * omap_mcbsp_set_rx_threshold configures the receive threshold in words. - * The threshold parameter is 1 based, and it is converted (threshold - 1) - * for the THRSH1 register. - */ -void omap_mcbsp_set_rx_threshold(struct omap_mcbsp *mcbsp, u16 threshold) -{ - if (threshold && threshold <= mcbsp->max_rx_thres) - MCBSP_WRITE(mcbsp, THRSH1, threshold - 1); -} - -/* - * omap_mcbsp_get_tx_delay returns the number of used slots in the McBSP FIFO - */ -u16 omap_mcbsp_get_tx_delay(struct omap_mcbsp *mcbsp) -{ - u16 buffstat; - - /* Returns the number of free locations in the buffer */ - buffstat = MCBSP_READ(mcbsp, XBUFFSTAT); - - /* Number of slots are different in McBSP ports */ - return mcbsp->pdata->buffer_size - buffstat; -} - -/* - * omap_mcbsp_get_rx_delay returns the number of free slots in the McBSP FIFO - * to reach the threshold value (when the DMA will be triggered to read it) - */ -u16 omap_mcbsp_get_rx_delay(struct omap_mcbsp *mcbsp) -{ - u16 buffstat, threshold; - - /* Returns the number of used locations in the buffer */ - buffstat = MCBSP_READ(mcbsp, RBUFFSTAT); - /* RX threshold */ - threshold = MCBSP_READ(mcbsp, THRSH1); - - /* Return the number of location till we reach the threshold limit */ - if (threshold <= buffstat) - return 0; - else - return threshold - buffstat; -} - -int omap_mcbsp_request(struct omap_mcbsp *mcbsp) -{ - void *reg_cache; - int err; - - reg_cache = kzalloc(mcbsp->reg_cache_size, GFP_KERNEL); - if (!reg_cache) { - return -ENOMEM; - } - - spin_lock(&mcbsp->lock); - if (!mcbsp->free) { - dev_err(mcbsp->dev, "McBSP%d is currently in use\n", - mcbsp->id); - err = -EBUSY; - goto err_kfree; - } - - mcbsp->free = false; - mcbsp->reg_cache = reg_cache; - spin_unlock(&mcbsp->lock); - - if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->request) - mcbsp->pdata->ops->request(mcbsp->id - 1); - - /* - * Make sure that transmitter, receiver and sample-rate generator are - * not running before activating IRQs. - */ - MCBSP_WRITE(mcbsp, SPCR1, 0); - MCBSP_WRITE(mcbsp, SPCR2, 0); - - if (mcbsp->irq) { - err = request_irq(mcbsp->irq, omap_mcbsp_irq_handler, 0, - "McBSP", (void *)mcbsp); - if (err != 0) { - dev_err(mcbsp->dev, "Unable to request IRQ\n"); - goto err_clk_disable; - } - } else { - err = request_irq(mcbsp->tx_irq, omap_mcbsp_tx_irq_handler, 0, - "McBSP TX", (void *)mcbsp); - if (err != 0) { - dev_err(mcbsp->dev, "Unable to request TX IRQ\n"); - goto err_clk_disable; - } - - err = request_irq(mcbsp->rx_irq, omap_mcbsp_rx_irq_handler, 0, - "McBSP RX", (void *)mcbsp); - if (err != 0) { - dev_err(mcbsp->dev, "Unable to request RX IRQ\n"); - goto err_free_irq; - } - } - - return 0; -err_free_irq: - free_irq(mcbsp->tx_irq, (void *)mcbsp); -err_clk_disable: - if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free) - mcbsp->pdata->ops->free(mcbsp->id - 1); - - /* Disable wakeup behavior */ - if (mcbsp->pdata->has_wakeup) - MCBSP_WRITE(mcbsp, WAKEUPEN, 0); - - spin_lock(&mcbsp->lock); - mcbsp->free = true; - mcbsp->reg_cache = NULL; -err_kfree: - spin_unlock(&mcbsp->lock); - kfree(reg_cache); - - return err; -} - -void omap_mcbsp_free(struct omap_mcbsp *mcbsp) -{ - void *reg_cache; - - if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free) - mcbsp->pdata->ops->free(mcbsp->id - 1); - - /* Disable wakeup behavior */ - if (mcbsp->pdata->has_wakeup) - MCBSP_WRITE(mcbsp, WAKEUPEN, 0); - - /* Disable interrupt requests */ - if (mcbsp->irq) - MCBSP_WRITE(mcbsp, IRQEN, 0); - - if (mcbsp->irq) { - free_irq(mcbsp->irq, (void *)mcbsp); - } else { - free_irq(mcbsp->rx_irq, (void *)mcbsp); - free_irq(mcbsp->tx_irq, (void *)mcbsp); - } - - reg_cache = mcbsp->reg_cache; - - /* - * Select CLKS source from internal source unconditionally before - * marking the McBSP port as free. - * If the external clock source via MCBSP_CLKS pin has been selected the - * system will refuse to enter idle if the CLKS pin source is not reset - * back to internal source. - */ - if (!mcbsp_omap1()) - omap2_mcbsp_set_clks_src(mcbsp, MCBSP_CLKS_PRCM_SRC); - - spin_lock(&mcbsp->lock); - if (mcbsp->free) - dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); - else - mcbsp->free = true; - mcbsp->reg_cache = NULL; - spin_unlock(&mcbsp->lock); - - kfree(reg_cache); -} - -/* - * Here we start the McBSP, by enabling transmitter, receiver or both. - * If no transmitter or receiver is active prior calling, then sample-rate - * generator and frame sync are started. - */ -void omap_mcbsp_start(struct omap_mcbsp *mcbsp, int stream) -{ - int tx = (stream == SNDRV_PCM_STREAM_PLAYBACK); - int rx = !tx; - int enable_srg = 0; - u16 w; - - if (mcbsp->st_data) - omap_st_start(mcbsp); - - /* Only enable SRG, if McBSP is master */ - w = MCBSP_READ_CACHE(mcbsp, PCR0); - if (w & (FSXM | FSRM | CLKXM | CLKRM)) - enable_srg = !((MCBSP_READ_CACHE(mcbsp, SPCR2) | - MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1); - - if (enable_srg) { - /* Start the sample generator */ - w = MCBSP_READ_CACHE(mcbsp, SPCR2); - MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 6)); - } - - /* Enable transmitter and receiver */ - tx &= 1; - w = MCBSP_READ_CACHE(mcbsp, SPCR2); - MCBSP_WRITE(mcbsp, SPCR2, w | tx); - - rx &= 1; - w = MCBSP_READ_CACHE(mcbsp, SPCR1); - MCBSP_WRITE(mcbsp, SPCR1, w | rx); - - /* - * Worst case: CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec - * REVISIT: 100us may give enough time for two CLKSRG, however - * due to some unknown PM related, clock gating etc. reason it - * is now at 500us. - */ - udelay(500); - - if (enable_srg) { - /* Start frame sync */ - w = MCBSP_READ_CACHE(mcbsp, SPCR2); - MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 7)); - } - - if (mcbsp->pdata->has_ccr) { - /* Release the transmitter and receiver */ - w = MCBSP_READ_CACHE(mcbsp, XCCR); - w &= ~(tx ? XDISABLE : 0); - MCBSP_WRITE(mcbsp, XCCR, w); - w = MCBSP_READ_CACHE(mcbsp, RCCR); - w &= ~(rx ? RDISABLE : 0); - MCBSP_WRITE(mcbsp, RCCR, w); - } - - /* Dump McBSP Regs */ - omap_mcbsp_dump_reg(mcbsp); -} - -void omap_mcbsp_stop(struct omap_mcbsp *mcbsp, int stream) -{ - int tx = (stream == SNDRV_PCM_STREAM_PLAYBACK); - int rx = !tx; - int idle; - u16 w; - - /* Reset transmitter */ - tx &= 1; - if (mcbsp->pdata->has_ccr) { - w = MCBSP_READ_CACHE(mcbsp, XCCR); - w |= (tx ? XDISABLE : 0); - MCBSP_WRITE(mcbsp, XCCR, w); - } - w = MCBSP_READ_CACHE(mcbsp, SPCR2); - MCBSP_WRITE(mcbsp, SPCR2, w & ~tx); - - /* Reset receiver */ - rx &= 1; - if (mcbsp->pdata->has_ccr) { - w = MCBSP_READ_CACHE(mcbsp, RCCR); - w |= (rx ? RDISABLE : 0); - MCBSP_WRITE(mcbsp, RCCR, w); - } - w = MCBSP_READ_CACHE(mcbsp, SPCR1); - MCBSP_WRITE(mcbsp, SPCR1, w & ~rx); - - idle = !((MCBSP_READ_CACHE(mcbsp, SPCR2) | - MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1); - - if (idle) { - /* Reset the sample rate generator */ - w = MCBSP_READ_CACHE(mcbsp, SPCR2); - MCBSP_WRITE(mcbsp, SPCR2, w & ~(1 << 6)); - } - - if (mcbsp->st_data) - omap_st_stop(mcbsp); -} - -int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id) -{ - struct clk *fck_src; - const char *src; - int r; - - if (fck_src_id == MCBSP_CLKS_PAD_SRC) - src = "pad_fck"; - else if (fck_src_id == MCBSP_CLKS_PRCM_SRC) - src = "prcm_fck"; - else - return -EINVAL; - - fck_src = clk_get(mcbsp->dev, src); - if (IS_ERR(fck_src)) { - dev_err(mcbsp->dev, "CLKS: could not clk_get() %s\n", src); - return -EINVAL; - } - - pm_runtime_put_sync(mcbsp->dev); - - r = clk_set_parent(mcbsp->fclk, fck_src); - if (r) { - dev_err(mcbsp->dev, "CLKS: could not clk_set_parent() to %s\n", - src); - clk_put(fck_src); - return r; - } - - pm_runtime_get_sync(mcbsp->dev); - - clk_put(fck_src); - - return 0; - -} - -#define max_thres(m) (mcbsp->pdata->buffer_size) -#define valid_threshold(m, val) ((val) <= max_thres(m)) -#define THRESHOLD_PROP_BUILDER(prop) \ -static ssize_t prop##_show(struct device *dev, \ - struct device_attribute *attr, char *buf) \ -{ \ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); \ - \ - return sprintf(buf, "%u\n", mcbsp->prop); \ -} \ - \ -static ssize_t prop##_store(struct device *dev, \ - struct device_attribute *attr, \ - const char *buf, size_t size) \ -{ \ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); \ - unsigned long val; \ - int status; \ - \ - status = kstrtoul(buf, 0, &val); \ - if (status) \ - return status; \ - \ - if (!valid_threshold(mcbsp, val)) \ - return -EDOM; \ - \ - mcbsp->prop = val; \ - return size; \ -} \ - \ -static DEVICE_ATTR(prop, 0644, prop##_show, prop##_store); - -THRESHOLD_PROP_BUILDER(max_tx_thres); -THRESHOLD_PROP_BUILDER(max_rx_thres); - -static const char *dma_op_modes[] = { - "element", "threshold", -}; - -static ssize_t dma_op_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); - int dma_op_mode, i = 0; - ssize_t len = 0; - const char * const *s; - - dma_op_mode = mcbsp->dma_op_mode; - - for (s = &dma_op_modes[i]; i < ARRAY_SIZE(dma_op_modes); s++, i++) { - if (dma_op_mode == i) - len += sprintf(buf + len, "[%s] ", *s); - else - len += sprintf(buf + len, "%s ", *s); - } - len += sprintf(buf + len, "\n"); - - return len; -} - -static ssize_t dma_op_mode_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) -{ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); - int i; - - i = sysfs_match_string(dma_op_modes, buf); - if (i < 0) - return i; - - spin_lock_irq(&mcbsp->lock); - if (!mcbsp->free) { - size = -EBUSY; - goto unlock; - } - mcbsp->dma_op_mode = i; - -unlock: - spin_unlock_irq(&mcbsp->lock); - - return size; -} - -static DEVICE_ATTR_RW(dma_op_mode); - -static const struct attribute *additional_attrs[] = { - &dev_attr_max_tx_thres.attr, - &dev_attr_max_rx_thres.attr, - &dev_attr_dma_op_mode.attr, - NULL, -}; - -static const struct attribute_group additional_attr_group = { - .attrs = (struct attribute **)additional_attrs, -}; - -static ssize_t st_taps_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - ssize_t status = 0; - int i; - - spin_lock_irq(&mcbsp->lock); - for (i = 0; i < st_data->nr_taps; i++) - status += sprintf(&buf[status], (i ? ", %d" : "%d"), - st_data->taps[i]); - if (i) - status += sprintf(&buf[status], "\n"); - spin_unlock_irq(&mcbsp->lock); - - return status; -} - -static ssize_t st_taps_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) -{ - struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); - struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - int val, tmp, status, i = 0; - - spin_lock_irq(&mcbsp->lock); - memset(st_data->taps, 0, sizeof(st_data->taps)); - st_data->nr_taps = 0; - - do { - status = sscanf(buf, "%d%n", &val, &tmp); - if (status < 0 || status == 0) { - size = -EINVAL; - goto out; - } - if (val < -32768 || val > 32767) { - size = -EINVAL; - goto out; - } - st_data->taps[i++] = val; - buf += tmp; - if (*buf != ',') - break; - buf++; - } while (1); - - st_data->nr_taps = i; - -out: - spin_unlock_irq(&mcbsp->lock); - - return size; -} - -static DEVICE_ATTR_RW(st_taps); - -static const struct attribute *sidetone_attrs[] = { - &dev_attr_st_taps.attr, - NULL, -}; - -static const struct attribute_group sidetone_attr_group = { - .attrs = (struct attribute **)sidetone_attrs, -}; - -static int omap_st_add(struct omap_mcbsp *mcbsp, struct resource *res) -{ - struct omap_mcbsp_st_data *st_data; - int err; - - st_data = devm_kzalloc(mcbsp->dev, sizeof(*mcbsp->st_data), GFP_KERNEL); - if (!st_data) - return -ENOMEM; - - st_data->mcbsp_iclk = clk_get(mcbsp->dev, "ick"); - if (IS_ERR(st_data->mcbsp_iclk)) { - dev_warn(mcbsp->dev, - "Failed to get ick, sidetone might be broken\n"); - st_data->mcbsp_iclk = NULL; - } - - st_data->io_base_st = devm_ioremap(mcbsp->dev, res->start, - resource_size(res)); - if (!st_data->io_base_st) - return -ENOMEM; - - err = sysfs_create_group(&mcbsp->dev->kobj, &sidetone_attr_group); - if (err) - return err; - - mcbsp->st_data = st_data; - return 0; -} - -/* - * McBSP1 and McBSP3 are directly mapped on 1610 and 1510. - * 730 has only 2 McBSP, and both of them are MPU peripherals. - */ -int omap_mcbsp_init(struct platform_device *pdev) -{ - struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev); - struct resource *res; - int ret = 0; - - spin_lock_init(&mcbsp->lock); - mcbsp->free = true; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); - if (!res) - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - mcbsp->io_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(mcbsp->io_base)) - return PTR_ERR(mcbsp->io_base); - - mcbsp->phys_base = res->start; - mcbsp->reg_cache_size = resource_size(res); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dma"); - if (!res) - mcbsp->phys_dma_base = mcbsp->phys_base; - else - mcbsp->phys_dma_base = res->start; - - /* - * OMAP1, 2 uses two interrupt lines: TX, RX - * OMAP2430, OMAP3 SoC have combined IRQ line as well. - * OMAP4 and newer SoC only have the combined IRQ line. - * Use the combined IRQ if available since it gives better debugging - * possibilities. - */ - mcbsp->irq = platform_get_irq_byname(pdev, "common"); - if (mcbsp->irq == -ENXIO) { - mcbsp->tx_irq = platform_get_irq_byname(pdev, "tx"); - - if (mcbsp->tx_irq == -ENXIO) { - mcbsp->irq = platform_get_irq(pdev, 0); - mcbsp->tx_irq = 0; - } else { - mcbsp->rx_irq = platform_get_irq_byname(pdev, "rx"); - mcbsp->irq = 0; - } - } - - if (!pdev->dev.of_node) { - res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); - if (!res) { - dev_err(&pdev->dev, "invalid tx DMA channel\n"); - return -ENODEV; - } - mcbsp->dma_req[0] = res->start; - mcbsp->dma_data[0].filter_data = &mcbsp->dma_req[0]; - - res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); - if (!res) { - dev_err(&pdev->dev, "invalid rx DMA channel\n"); - return -ENODEV; - } - mcbsp->dma_req[1] = res->start; - mcbsp->dma_data[1].filter_data = &mcbsp->dma_req[1]; - } else { - mcbsp->dma_data[0].filter_data = "tx"; - mcbsp->dma_data[1].filter_data = "rx"; - } - - mcbsp->dma_data[0].addr = omap_mcbsp_dma_reg_params(mcbsp, - SNDRV_PCM_STREAM_PLAYBACK); - mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, - SNDRV_PCM_STREAM_CAPTURE); - - mcbsp->fclk = clk_get(&pdev->dev, "fck"); - if (IS_ERR(mcbsp->fclk)) { - ret = PTR_ERR(mcbsp->fclk); - dev_err(mcbsp->dev, "unable to get fck: %d\n", ret); - return ret; - } - - mcbsp->dma_op_mode = MCBSP_DMA_MODE_ELEMENT; - if (mcbsp->pdata->buffer_size) { - /* - * Initially configure the maximum thresholds to a safe value. - * The McBSP FIFO usage with these values should not go under - * 16 locations. - * If the whole FIFO without safety buffer is used, than there - * is a possibility that the DMA will be not able to push the - * new data on time, causing channel shifts in runtime. - */ - mcbsp->max_tx_thres = max_thres(mcbsp) - 0x10; - mcbsp->max_rx_thres = max_thres(mcbsp) - 0x10; - - ret = sysfs_create_group(&mcbsp->dev->kobj, - &additional_attr_group); - if (ret) { - dev_err(mcbsp->dev, - "Unable to create additional controls\n"); - goto err_thres; - } - } else { - mcbsp->max_tx_thres = -EINVAL; - mcbsp->max_rx_thres = -EINVAL; - } - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone"); - if (res) { - ret = omap_st_add(mcbsp, res); - if (ret) { - dev_err(mcbsp->dev, - "Unable to create sidetone controls\n"); - goto err_st; - } - } - - return 0; - -err_st: - if (mcbsp->pdata->buffer_size) - sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); -err_thres: - clk_put(mcbsp->fclk); - return ret; -} - -void omap_mcbsp_cleanup(struct omap_mcbsp *mcbsp) -{ - if (mcbsp->pdata->buffer_size) - sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); - - if (mcbsp->st_data) { - sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); - clk_put(mcbsp->st_data->mcbsp_iclk); - } -} diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/omap-mcbsp-priv.h similarity index 70% rename from sound/soc/omap/mcbsp.h rename to sound/soc/omap/omap-mcbsp-priv.h index 92472c6ef358..7865cda4bf0a 100644 --- a/sound/soc/omap/mcbsp.h +++ b/sound/soc/omap/omap-mcbsp-priv.h @@ -1,28 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* - * sound/soc/omap/mcbsp.h - * * OMAP Multi-Channel Buffered Serial Port * * Contact: Jarkko Nikula jarkko.nikula@bitmer.com * Peter Ujfalusi peter.ujfalusi@ti.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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * */ -#ifndef __ASOC_MCBSP_H -#define __ASOC_MCBSP_H + +#ifndef __OMAP_MCBSP_PRIV_H__ +#define __OMAP_MCBSP_PRIV_H__ + +#include <linux/platform_data/asoc-ti-mcbsp.h>

#ifdef CONFIG_ARCH_OMAP1 #define mcbsp_omap1() 1 @@ -30,8 +17,6 @@ #define mcbsp_omap1() 0 #endif

-#include <sound/dmaengine_pcm.h> - /* McBSP register numbers. Register address offset = num * reg_step */ enum { /* Common registers */ @@ -85,15 +70,6 @@ enum { OMAP_MCBSP_REG_SSELCR, };

-/* OMAP3 sidetone control registers */ -#define OMAP_ST_REG_REV 0x00 -#define OMAP_ST_REG_SYSCONFIG 0x10 -#define OMAP_ST_REG_IRQSTATUS 0x18 -#define OMAP_ST_REG_IRQENABLE 0x1C -#define OMAP_ST_REG_SGAINCR 0x24 -#define OMAP_ST_REG_SFIRCR 0x28 -#define OMAP_ST_REG_SSELCR 0x2C - /************************** McBSP SPCR1 bit definitions ***********************/ #define RRST BIT(0) #define RRDY BIT(1) @@ -202,24 +178,6 @@ enum { #define SIDLEMODE(value) (((value) & 0x3) << 3) #define CLOCKACTIVITY(value) (((value) & 0x3) << 8)

-/********************** McBSP SSELCR bit definitions ***********************/ -#define SIDETONEEN BIT(10) - -/********************** McBSP Sidetone SYSCONFIG bit definitions ***********/ -#define ST_AUTOIDLE BIT(0) - -/********************** McBSP Sidetone SGAINCR bit definitions *************/ -#define ST_CH0GAIN(value) ((value) & 0xffff) /* Bits 0:15 */ -#define ST_CH1GAIN(value) (((value) & 0xffff) << 16) /* Bits 16:31 */ - -/********************** McBSP Sidetone SFIRCR bit definitions **************/ -#define ST_FIRCOEFF(value) ((value) & 0xffff) /* Bits 0:15 */ - -/********************** McBSP Sidetone SSELCR bit definitions **************/ -#define ST_SIDETONEEN BIT(0) -#define ST_COEFFWREN BIT(1) -#define ST_COEFFWRDONE BIT(2) - /********************** McBSP DMA operating modes **************************/ #define MCBSP_DMA_MODE_ELEMENT 0 #define MCBSP_DMA_MODE_THRESHOLD 1 @@ -278,16 +236,7 @@ struct omap_mcbsp_reg_cfg { u16 rccr; };

-struct omap_mcbsp_st_data { - void __iomem *io_base_st; - struct clk *mcbsp_iclk; - bool running; - bool enabled; - s16 taps[128]; /* Sidetone filter coefficients */ - int nr_taps; /* Number of filter coefficients in use */ - s16 ch0gain; - s16 ch1gain; -}; +struct omap_mcbsp_st_data;

struct omap_mcbsp { struct device *dev; @@ -330,29 +279,46 @@ struct omap_mcbsp { struct pm_qos_request pm_qos_req; };

-void omap_mcbsp_config(struct omap_mcbsp *mcbsp, - const struct omap_mcbsp_reg_cfg *config); -void omap_mcbsp_set_tx_threshold(struct omap_mcbsp *mcbsp, u16 threshold); -void omap_mcbsp_set_rx_threshold(struct omap_mcbsp *mcbsp, u16 threshold); -u16 omap_mcbsp_get_tx_delay(struct omap_mcbsp *mcbsp); -u16 omap_mcbsp_get_rx_delay(struct omap_mcbsp *mcbsp); -int omap_mcbsp_get_dma_op_mode(struct omap_mcbsp *mcbsp); -int omap_mcbsp_request(struct omap_mcbsp *mcbsp); -void omap_mcbsp_free(struct omap_mcbsp *mcbsp); -void omap_mcbsp_start(struct omap_mcbsp *mcbsp, int stream); -void omap_mcbsp_stop(struct omap_mcbsp *mcbsp, int stream); - -/* McBSP functional clock source changing function */ -int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id); +static inline void omap_mcbsp_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) +{ + void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step; + + if (mcbsp->pdata->reg_size == 2) { + ((u16 *)mcbsp->reg_cache)[reg] = (u16)val; + writew_relaxed((u16)val, addr); + } else { + ((u32 *)mcbsp->reg_cache)[reg] = val; + writel_relaxed(val, addr); + } +} + +static inline int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, + bool from_cache) +{ + void __iomem *addr = mcbsp->io_base + reg * mcbsp->pdata->reg_step; + + if (mcbsp->pdata->reg_size == 2) { + return !from_cache ? readw_relaxed(addr) : + ((u16 *)mcbsp->reg_cache)[reg]; + } else { + return !from_cache ? readl_relaxed(addr) : + ((u32 *)mcbsp->reg_cache)[reg]; + } +} + +#define MCBSP_READ(mcbsp, reg) \ + omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 0) +#define MCBSP_WRITE(mcbsp, reg, val) \ + omap_mcbsp_write(mcbsp, OMAP_MCBSP_REG_##reg, val) +#define MCBSP_READ_CACHE(mcbsp, reg) \ + omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 1) +

/* Sidetone specific API */ -int omap_st_set_chgain(struct omap_mcbsp *mcbsp, int channel, s16 chgain); -int omap_st_get_chgain(struct omap_mcbsp *mcbsp, int channel, s16 *chgain); -int omap_st_enable(struct omap_mcbsp *mcbsp); -int omap_st_disable(struct omap_mcbsp *mcbsp); -int omap_st_is_enabled(struct omap_mcbsp *mcbsp); +int omap_mcbsp_st_init(struct platform_device *pdev); +void omap_mcbsp_st_cleanup(struct platform_device *pdev);

-int omap_mcbsp_init(struct platform_device *pdev); -void omap_mcbsp_cleanup(struct omap_mcbsp *mcbsp); +int omap_mcbsp_st_start(struct omap_mcbsp *mcbsp); +int omap_mcbsp_st_stop(struct omap_mcbsp *mcbsp);

-#endif /* __ASOC_MCBSP_H */ +#endif /* __OMAP_MCBSP_PRIV_H__ */ diff --git a/sound/soc/omap/omap-mcbsp-st.c b/sound/soc/omap/omap-mcbsp-st.c new file mode 100644 index 000000000000..1a3fe854e856 --- /dev/null +++ b/sound/soc/omap/omap-mcbsp-st.c @@ -0,0 +1,516 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * McBSP Sidetone support + * + * Copyright (C) 2004 Nokia Corporation + * Author: Samuel Ortiz samuel.ortiz@nokia.com + * + * Contact: Jarkko Nikula jarkko.nikula@bitmer.com + * Peter Ujfalusi peter.ujfalusi@ti.com + */ + +#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 <linux/pm_runtime.h> + +#include "omap-mcbsp.h" +#include "omap-mcbsp-priv.h" + +/* OMAP3 sidetone control registers */ +#define OMAP_ST_REG_REV 0x00 +#define OMAP_ST_REG_SYSCONFIG 0x10 +#define OMAP_ST_REG_IRQSTATUS 0x18 +#define OMAP_ST_REG_IRQENABLE 0x1C +#define OMAP_ST_REG_SGAINCR 0x24 +#define OMAP_ST_REG_SFIRCR 0x28 +#define OMAP_ST_REG_SSELCR 0x2C + +/********************** McBSP SSELCR bit definitions ***********************/ +#define SIDETONEEN BIT(10) + +/********************** McBSP Sidetone SYSCONFIG bit definitions ***********/ +#define ST_AUTOIDLE BIT(0) + +/********************** McBSP Sidetone SGAINCR bit definitions *************/ +#define ST_CH0GAIN(value) ((value) & 0xffff) /* Bits 0:15 */ +#define ST_CH1GAIN(value) (((value) & 0xffff) << 16) /* Bits 16:31 */ + +/********************** McBSP Sidetone SFIRCR bit definitions **************/ +#define ST_FIRCOEFF(value) ((value) & 0xffff) /* Bits 0:15 */ + +/********************** McBSP Sidetone SSELCR bit definitions **************/ +#define ST_SIDETONEEN BIT(0) +#define ST_COEFFWREN BIT(1) +#define ST_COEFFWRDONE BIT(2) + +struct omap_mcbsp_st_data { + void __iomem *io_base_st; + struct clk *mcbsp_iclk; + bool running; + bool enabled; + s16 taps[128]; /* Sidetone filter coefficients */ + int nr_taps; /* Number of filter coefficients in use */ + s16 ch0gain; + s16 ch1gain; +}; + +static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) +{ + writel_relaxed(val, mcbsp->st_data->io_base_st + reg); +} + +static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg) +{ + return readl_relaxed(mcbsp->st_data->io_base_st + reg); +} + +#define MCBSP_ST_READ(mcbsp, reg) omap_mcbsp_st_read(mcbsp, OMAP_ST_REG_##reg) +#define MCBSP_ST_WRITE(mcbsp, reg, val) \ + omap_mcbsp_st_write(mcbsp, OMAP_ST_REG_##reg, val) + +static void omap_mcbsp_st_on(struct omap_mcbsp *mcbsp) +{ + unsigned int w; + + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, true); + + /* Disable Sidetone clock auto-gating for normal operation */ + w = MCBSP_ST_READ(mcbsp, SYSCONFIG); + MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w & ~(ST_AUTOIDLE)); + + /* Enable McBSP Sidetone */ + w = MCBSP_READ(mcbsp, SSELCR); + MCBSP_WRITE(mcbsp, SSELCR, w | SIDETONEEN); + + /* Enable Sidetone from Sidetone Core */ + w = MCBSP_ST_READ(mcbsp, SSELCR); + MCBSP_ST_WRITE(mcbsp, SSELCR, w | ST_SIDETONEEN); +} + +static void omap_mcbsp_st_off(struct omap_mcbsp *mcbsp) +{ + unsigned int w; + + w = MCBSP_ST_READ(mcbsp, SSELCR); + MCBSP_ST_WRITE(mcbsp, SSELCR, w & ~(ST_SIDETONEEN)); + + w = MCBSP_READ(mcbsp, SSELCR); + MCBSP_WRITE(mcbsp, SSELCR, w & ~(SIDETONEEN)); + + /* Enable Sidetone clock auto-gating to reduce power consumption */ + w = MCBSP_ST_READ(mcbsp, SYSCONFIG); + MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE); + + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, false); +} + +static void omap_mcbsp_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) +{ + u16 val, i; + + val = MCBSP_ST_READ(mcbsp, SSELCR); + + if (val & ST_COEFFWREN) + MCBSP_ST_WRITE(mcbsp, SSELCR, val & ~(ST_COEFFWREN)); + + MCBSP_ST_WRITE(mcbsp, SSELCR, val | ST_COEFFWREN); + + for (i = 0; i < 128; i++) + MCBSP_ST_WRITE(mcbsp, SFIRCR, fir[i]); + + i = 0; + + val = MCBSP_ST_READ(mcbsp, SSELCR); + while (!(val & ST_COEFFWRDONE) && (++i < 1000)) + val = MCBSP_ST_READ(mcbsp, SSELCR); + + MCBSP_ST_WRITE(mcbsp, SSELCR, val & ~(ST_COEFFWREN)); + + if (i == 1000) + dev_err(mcbsp->dev, "McBSP FIR load error!\n"); +} + +static void omap_mcbsp_st_chgain(struct omap_mcbsp *mcbsp) +{ + u16 w; + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + + w = MCBSP_ST_READ(mcbsp, SSELCR); + + MCBSP_ST_WRITE(mcbsp, SGAINCR, ST_CH0GAIN(st_data->ch0gain) | + ST_CH1GAIN(st_data->ch1gain)); +} + +static int omap_mcbsp_st_set_chgain(struct omap_mcbsp *mcbsp, int channel, + s16 chgain) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + int ret = 0; + + if (!st_data) + return -ENOENT; + + spin_lock_irq(&mcbsp->lock); + if (channel == 0) + st_data->ch0gain = chgain; + else if (channel == 1) + st_data->ch1gain = chgain; + else + ret = -EINVAL; + + if (st_data->enabled) + omap_mcbsp_st_chgain(mcbsp); + spin_unlock_irq(&mcbsp->lock); + + return ret; +} + +static int omap_mcbsp_st_get_chgain(struct omap_mcbsp *mcbsp, int channel, + s16 *chgain) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + int ret = 0; + + if (!st_data) + return -ENOENT; + + spin_lock_irq(&mcbsp->lock); + if (channel == 0) + *chgain = st_data->ch0gain; + else if (channel == 1) + *chgain = st_data->ch1gain; + else + ret = -EINVAL; + spin_unlock_irq(&mcbsp->lock); + + return ret; +} + +static int omap_mcbsp_st_enable(struct omap_mcbsp *mcbsp) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + + if (!st_data) + return -ENODEV; + + spin_lock_irq(&mcbsp->lock); + st_data->enabled = 1; + omap_mcbsp_st_start(mcbsp); + spin_unlock_irq(&mcbsp->lock); + + return 0; +} + +static int omap_mcbsp_st_disable(struct omap_mcbsp *mcbsp) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + int ret = 0; + + if (!st_data) + return -ENODEV; + + spin_lock_irq(&mcbsp->lock); + omap_mcbsp_st_stop(mcbsp); + st_data->enabled = 0; + spin_unlock_irq(&mcbsp->lock); + + return ret; +} + +static int omap_mcbsp_st_is_enabled(struct omap_mcbsp *mcbsp) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + + if (!st_data) + return -ENODEV; + + return st_data->enabled; +} + +static ssize_t st_taps_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + ssize_t status = 0; + int i; + + spin_lock_irq(&mcbsp->lock); + for (i = 0; i < st_data->nr_taps; i++) + status += sprintf(&buf[status], (i ? ", %d" : "%d"), + st_data->taps[i]); + if (i) + status += sprintf(&buf[status], "\n"); + spin_unlock_irq(&mcbsp->lock); + + return status; +} + +static ssize_t st_taps_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + int val, tmp, status, i = 0; + + spin_lock_irq(&mcbsp->lock); + memset(st_data->taps, 0, sizeof(st_data->taps)); + st_data->nr_taps = 0; + + do { + status = sscanf(buf, "%d%n", &val, &tmp); + if (status < 0 || status == 0) { + size = -EINVAL; + goto out; + } + if (val < -32768 || val > 32767) { + size = -EINVAL; + goto out; + } + st_data->taps[i++] = val; + buf += tmp; + if (*buf != ',') + break; + buf++; + } while (1); + + st_data->nr_taps = i; + +out: + spin_unlock_irq(&mcbsp->lock); + + return size; +} + +static DEVICE_ATTR_RW(st_taps); + +static const struct attribute *sidetone_attrs[] = { + &dev_attr_st_taps.attr, + NULL, +}; + +static const struct attribute_group sidetone_attr_group = { + .attrs = (struct attribute **)sidetone_attrs, +}; + +int omap_mcbsp_st_start(struct omap_mcbsp *mcbsp) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + + if (st_data->enabled && !st_data->running) { + omap_mcbsp_st_fir_write(mcbsp, st_data->taps); + omap_mcbsp_st_chgain(mcbsp); + + if (!mcbsp->free) { + omap_mcbsp_st_on(mcbsp); + st_data->running = 1; + } + } + + return 0; +} + +int omap_mcbsp_st_stop(struct omap_mcbsp *mcbsp) +{ + struct omap_mcbsp_st_data *st_data = mcbsp->st_data; + + if (st_data->running) { + if (!mcbsp->free) { + omap_mcbsp_st_off(mcbsp); + st_data->running = 0; + } + } + + return 0; +} + +int omap_mcbsp_st_init(struct platform_device *pdev) +{ + struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev); + struct omap_mcbsp_st_data *st_data; + struct resource *res; + int ret; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone"); + if (!res) + return 0; + + st_data = devm_kzalloc(mcbsp->dev, sizeof(*mcbsp->st_data), GFP_KERNEL); + if (!st_data) + return -ENOMEM; + + st_data->mcbsp_iclk = clk_get(mcbsp->dev, "ick"); + if (IS_ERR(st_data->mcbsp_iclk)) { + dev_warn(mcbsp->dev, + "Failed to get ick, sidetone might be broken\n"); + st_data->mcbsp_iclk = NULL; + } + + st_data->io_base_st = devm_ioremap(mcbsp->dev, res->start, + resource_size(res)); + if (!st_data->io_base_st) + return -ENOMEM; + + ret = sysfs_create_group(&mcbsp->dev->kobj, &sidetone_attr_group); + if (ret) + return ret; + + mcbsp->st_data = st_data; + + return 0; +} + +void omap_mcbsp_st_cleanup(struct platform_device *pdev) +{ + struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev); + + if (mcbsp->st_data) { + sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); + clk_put(mcbsp->st_data->mcbsp_iclk); + } +} + +static int omap_mcbsp_st_info_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + int max = mc->max; + int min = mc->min; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = min; + uinfo->value.integer.max = max; + return 0; +} + +#define OMAP_MCBSP_ST_CHANNEL_VOLUME(channel) \ +static int \ +omap_mcbsp_set_st_ch##channel##_volume(struct snd_kcontrol *kc, \ + struct snd_ctl_elem_value *uc) \ +{ \ + struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ + struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ + struct soc_mixer_control *mc = \ + (struct soc_mixer_control *)kc->private_value; \ + int max = mc->max; \ + int min = mc->min; \ + int val = uc->value.integer.value[0]; \ + \ + if (val < min || val > max) \ + return -EINVAL; \ + \ + /* OMAP McBSP implementation uses index values 0..4 */ \ + return omap_mcbsp_st_set_chgain(mcbsp, channel, val); \ +} \ + \ +static int \ +omap_mcbsp_get_st_ch##channel##_volume(struct snd_kcontrol *kc, \ + struct snd_ctl_elem_value *uc) \ +{ \ + struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ + struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ + s16 chgain; \ + \ + if (omap_mcbsp_st_get_chgain(mcbsp, channel, &chgain)) \ + return -EAGAIN; \ + \ + uc->value.integer.value[0] = chgain; \ + return 0; \ +} + +OMAP_MCBSP_ST_CHANNEL_VOLUME(0) +OMAP_MCBSP_ST_CHANNEL_VOLUME(1) + +static int omap_mcbsp_st_put_mode(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); + struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); + u8 value = ucontrol->value.integer.value[0]; + + if (value == omap_mcbsp_st_is_enabled(mcbsp)) + return 0; + + if (value) + omap_mcbsp_st_enable(mcbsp); + else + omap_mcbsp_st_disable(mcbsp); + + return 1; +} + +static int omap_mcbsp_st_get_mode(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); + struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); + + ucontrol->value.integer.value[0] = omap_mcbsp_st_is_enabled(mcbsp); + return 0; +} + +#define OMAP_MCBSP_SOC_SINGLE_S16_EXT(xname, xmin, xmax, \ + xhandler_get, xhandler_put) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = omap_mcbsp_st_info_volsw, \ + .get = xhandler_get, .put = xhandler_put, \ + .private_value = (unsigned long)&(struct soc_mixer_control) \ + {.min = xmin, .max = xmax} } + +#define OMAP_MCBSP_ST_CONTROLS(port) \ +static const struct snd_kcontrol_new omap_mcbsp##port##_st_controls[] = { \ +SOC_SINGLE_EXT("McBSP" #port " Sidetone Switch", 1, 0, 1, 0, \ + omap_mcbsp_st_get_mode, omap_mcbsp_st_put_mode), \ +OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP" #port " Sidetone Channel 0 Volume", \ + -32768, 32767, \ + omap_mcbsp_get_st_ch0_volume, \ + omap_mcbsp_set_st_ch0_volume), \ +OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP" #port " Sidetone Channel 1 Volume", \ + -32768, 32767, \ + omap_mcbsp_get_st_ch1_volume, \ + omap_mcbsp_set_st_ch1_volume), \ +} + +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) +{ + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); + + if (!mcbsp->st_data) { + dev_warn(mcbsp->dev, "No sidetone data for port\n"); + return 0; + } + + switch (port_id) { + case 2: /* McBSP 2 */ + return snd_soc_add_dai_controls(cpu_dai, + omap_mcbsp2_st_controls, + ARRAY_SIZE(omap_mcbsp2_st_controls)); + case 3: /* McBSP 3 */ + return snd_soc_add_dai_controls(cpu_dai, + omap_mcbsp3_st_controls, + ARRAY_SIZE(omap_mcbsp3_st_controls)); + default: + dev_err(mcbsp->dev, "Port %d not supported\n", port_id); + break; + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(omap_mcbsp_st_add_controls); diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index 69a6b8ad6d42..e48fad11a0cc 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -35,21 +35,12 @@ #include <sound/soc.h> #include <sound/dmaengine_pcm.h>

-#include <linux/platform_data/asoc-ti-mcbsp.h> -#include "mcbsp.h" +#include "omap-mcbsp-priv.h" #include "omap-mcbsp.h" #include "sdma-pcm.h"

#define OMAP_MCBSP_RATES (SNDRV_PCM_RATE_8000_96000)

-#define OMAP_MCBSP_SOC_SINGLE_S16_EXT(xname, xmin, xmax, \ - xhandler_get, xhandler_put) \ -{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ - .info = omap_mcbsp_st_info_volsw, \ - .get = xhandler_get, .put = xhandler_put, \ - .private_value = (unsigned long) &(struct soc_mixer_control) \ - {.min = xmin, .max = xmax} } - enum { OMAP_MCBSP_WORD_8 = 0, OMAP_MCBSP_WORD_12, @@ -59,6 +50,702 @@ enum { OMAP_MCBSP_WORD_32, };

+static void omap_mcbsp_dump_reg(struct omap_mcbsp *mcbsp) +{ + dev_dbg(mcbsp->dev, "**** McBSP%d regs ****\n", mcbsp->id); + dev_dbg(mcbsp->dev, "DRR2: 0x%04x\n", MCBSP_READ(mcbsp, DRR2)); + dev_dbg(mcbsp->dev, "DRR1: 0x%04x\n", MCBSP_READ(mcbsp, DRR1)); + dev_dbg(mcbsp->dev, "DXR2: 0x%04x\n", MCBSP_READ(mcbsp, DXR2)); + dev_dbg(mcbsp->dev, "DXR1: 0x%04x\n", MCBSP_READ(mcbsp, DXR1)); + dev_dbg(mcbsp->dev, "SPCR2: 0x%04x\n", MCBSP_READ(mcbsp, SPCR2)); + dev_dbg(mcbsp->dev, "SPCR1: 0x%04x\n", MCBSP_READ(mcbsp, SPCR1)); + dev_dbg(mcbsp->dev, "RCR2: 0x%04x\n", MCBSP_READ(mcbsp, RCR2)); + dev_dbg(mcbsp->dev, "RCR1: 0x%04x\n", MCBSP_READ(mcbsp, RCR1)); + dev_dbg(mcbsp->dev, "XCR2: 0x%04x\n", MCBSP_READ(mcbsp, XCR2)); + dev_dbg(mcbsp->dev, "XCR1: 0x%04x\n", MCBSP_READ(mcbsp, XCR1)); + dev_dbg(mcbsp->dev, "SRGR2: 0x%04x\n", MCBSP_READ(mcbsp, SRGR2)); + dev_dbg(mcbsp->dev, "SRGR1: 0x%04x\n", MCBSP_READ(mcbsp, SRGR1)); + dev_dbg(mcbsp->dev, "PCR0: 0x%04x\n", MCBSP_READ(mcbsp, PCR0)); + dev_dbg(mcbsp->dev, "***********************\n"); +} + +static int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id) +{ + struct clk *fck_src; + const char *src; + int r; + + if (fck_src_id == MCBSP_CLKS_PAD_SRC) + src = "pad_fck"; + else if (fck_src_id == MCBSP_CLKS_PRCM_SRC) + src = "prcm_fck"; + else + return -EINVAL; + + fck_src = clk_get(mcbsp->dev, src); + if (IS_ERR(fck_src)) { + dev_err(mcbsp->dev, "CLKS: could not clk_get() %s\n", src); + return -EINVAL; + } + + pm_runtime_put_sync(mcbsp->dev); + + r = clk_set_parent(mcbsp->fclk, fck_src); + if (r) { + dev_err(mcbsp->dev, "CLKS: could not clk_set_parent() to %s\n", + src); + clk_put(fck_src); + return r; + } + + pm_runtime_get_sync(mcbsp->dev); + + clk_put(fck_src); + + return 0; +} + +static irqreturn_t omap_mcbsp_irq_handler(int irq, void *data) +{ + struct omap_mcbsp *mcbsp = data; + u16 irqst; + + irqst = MCBSP_READ(mcbsp, IRQST); + dev_dbg(mcbsp->dev, "IRQ callback : 0x%x\n", irqst); + + if (irqst & RSYNCERREN) + dev_err(mcbsp->dev, "RX Frame Sync Error!\n"); + if (irqst & RFSREN) + dev_dbg(mcbsp->dev, "RX Frame Sync\n"); + if (irqst & REOFEN) + dev_dbg(mcbsp->dev, "RX End Of Frame\n"); + if (irqst & RRDYEN) + dev_dbg(mcbsp->dev, "RX Buffer Threshold Reached\n"); + if (irqst & RUNDFLEN) + dev_err(mcbsp->dev, "RX Buffer Underflow!\n"); + if (irqst & ROVFLEN) + dev_err(mcbsp->dev, "RX Buffer Overflow!\n"); + + if (irqst & XSYNCERREN) + dev_err(mcbsp->dev, "TX Frame Sync Error!\n"); + if (irqst & XFSXEN) + dev_dbg(mcbsp->dev, "TX Frame Sync\n"); + if (irqst & XEOFEN) + dev_dbg(mcbsp->dev, "TX End Of Frame\n"); + if (irqst & XRDYEN) + dev_dbg(mcbsp->dev, "TX Buffer threshold Reached\n"); + if (irqst & XUNDFLEN) + dev_err(mcbsp->dev, "TX Buffer Underflow!\n"); + if (irqst & XOVFLEN) + dev_err(mcbsp->dev, "TX Buffer Overflow!\n"); + if (irqst & XEMPTYEOFEN) + dev_dbg(mcbsp->dev, "TX Buffer empty at end of frame\n"); + + MCBSP_WRITE(mcbsp, IRQST, irqst); + + return IRQ_HANDLED; +} + +static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *data) +{ + struct omap_mcbsp *mcbsp = data; + u16 irqst_spcr2; + + irqst_spcr2 = MCBSP_READ(mcbsp, SPCR2); + dev_dbg(mcbsp->dev, "TX IRQ callback : 0x%x\n", irqst_spcr2); + + if (irqst_spcr2 & XSYNC_ERR) { + dev_err(mcbsp->dev, "TX Frame Sync Error! : 0x%x\n", + irqst_spcr2); + /* Writing zero to XSYNC_ERR clears the IRQ */ + MCBSP_WRITE(mcbsp, SPCR2, MCBSP_READ_CACHE(mcbsp, SPCR2)); + } + + return IRQ_HANDLED; +} + +static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *data) +{ + struct omap_mcbsp *mcbsp = data; + u16 irqst_spcr1; + + irqst_spcr1 = MCBSP_READ(mcbsp, SPCR1); + dev_dbg(mcbsp->dev, "RX IRQ callback : 0x%x\n", irqst_spcr1); + + if (irqst_spcr1 & RSYNC_ERR) { + dev_err(mcbsp->dev, "RX Frame Sync Error! : 0x%x\n", + irqst_spcr1); + /* Writing zero to RSYNC_ERR clears the IRQ */ + MCBSP_WRITE(mcbsp, SPCR1, MCBSP_READ_CACHE(mcbsp, SPCR1)); + } + + return IRQ_HANDLED; +} + +/* + * omap_mcbsp_config simply write a config to the + * appropriate McBSP. + * You either call this function or set the McBSP registers + * by yourself before calling omap_mcbsp_start(). + */ +static void omap_mcbsp_config(struct omap_mcbsp *mcbsp, + const struct omap_mcbsp_reg_cfg *config) +{ + dev_dbg(mcbsp->dev, "Configuring McBSP%d phys_base: 0x%08lx\n", + mcbsp->id, mcbsp->phys_base); + + /* We write the given config */ + MCBSP_WRITE(mcbsp, SPCR2, config->spcr2); + MCBSP_WRITE(mcbsp, SPCR1, config->spcr1); + MCBSP_WRITE(mcbsp, RCR2, config->rcr2); + MCBSP_WRITE(mcbsp, RCR1, config->rcr1); + MCBSP_WRITE(mcbsp, XCR2, config->xcr2); + MCBSP_WRITE(mcbsp, XCR1, config->xcr1); + MCBSP_WRITE(mcbsp, SRGR2, config->srgr2); + MCBSP_WRITE(mcbsp, SRGR1, config->srgr1); + MCBSP_WRITE(mcbsp, MCR2, config->mcr2); + MCBSP_WRITE(mcbsp, MCR1, config->mcr1); + MCBSP_WRITE(mcbsp, PCR0, config->pcr0); + if (mcbsp->pdata->has_ccr) { + MCBSP_WRITE(mcbsp, XCCR, config->xccr); + MCBSP_WRITE(mcbsp, RCCR, config->rccr); + } + /* Enable wakeup behavior */ + if (mcbsp->pdata->has_wakeup) + MCBSP_WRITE(mcbsp, WAKEUPEN, XRDYEN | RRDYEN); + + /* Enable TX/RX sync error interrupts by default */ + if (mcbsp->irq) + MCBSP_WRITE(mcbsp, IRQEN, RSYNCERREN | XSYNCERREN | + RUNDFLEN | ROVFLEN | XUNDFLEN | XOVFLEN); +} + +/** + * omap_mcbsp_dma_reg_params - returns the address of mcbsp data register + * @mcbsp: omap_mcbsp struct for the McBSP instance + * @stream: Stream direction (playback/capture) + * + * Returns the address of mcbsp data transmit register or data receive register + * to be used by DMA for transferring/receiving data + */ +static int omap_mcbsp_dma_reg_params(struct omap_mcbsp *mcbsp, + unsigned int stream) +{ + int data_reg; + + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (mcbsp->pdata->reg_size == 2) + data_reg = OMAP_MCBSP_REG_DXR1; + else + data_reg = OMAP_MCBSP_REG_DXR; + } else { + if (mcbsp->pdata->reg_size == 2) + data_reg = OMAP_MCBSP_REG_DRR1; + else + data_reg = OMAP_MCBSP_REG_DRR; + } + + return mcbsp->phys_dma_base + data_reg * mcbsp->pdata->reg_step; +} + +/* + * omap_mcbsp_set_rx_threshold configures the transmit threshold in words. + * The threshold parameter is 1 based, and it is converted (threshold - 1) + * for the THRSH2 register. + */ +static void omap_mcbsp_set_tx_threshold(struct omap_mcbsp *mcbsp, u16 threshold) +{ + if (threshold && threshold <= mcbsp->max_tx_thres) + MCBSP_WRITE(mcbsp, THRSH2, threshold - 1); +} + +/* + * omap_mcbsp_set_rx_threshold configures the receive threshold in words. + * The threshold parameter is 1 based, and it is converted (threshold - 1) + * for the THRSH1 register. + */ +static void omap_mcbsp_set_rx_threshold(struct omap_mcbsp *mcbsp, u16 threshold) +{ + if (threshold && threshold <= mcbsp->max_rx_thres) + MCBSP_WRITE(mcbsp, THRSH1, threshold - 1); +} + +/* + * omap_mcbsp_get_tx_delay returns the number of used slots in the McBSP FIFO + */ +static u16 omap_mcbsp_get_tx_delay(struct omap_mcbsp *mcbsp) +{ + u16 buffstat; + + /* Returns the number of free locations in the buffer */ + buffstat = MCBSP_READ(mcbsp, XBUFFSTAT); + + /* Number of slots are different in McBSP ports */ + return mcbsp->pdata->buffer_size - buffstat; +} + +/* + * omap_mcbsp_get_rx_delay returns the number of free slots in the McBSP FIFO + * to reach the threshold value (when the DMA will be triggered to read it) + */ +static u16 omap_mcbsp_get_rx_delay(struct omap_mcbsp *mcbsp) +{ + u16 buffstat, threshold; + + /* Returns the number of used locations in the buffer */ + buffstat = MCBSP_READ(mcbsp, RBUFFSTAT); + /* RX threshold */ + threshold = MCBSP_READ(mcbsp, THRSH1); + + /* Return the number of location till we reach the threshold limit */ + if (threshold <= buffstat) + return 0; + else + return threshold - buffstat; +} + +static int omap_mcbsp_request(struct omap_mcbsp *mcbsp) +{ + void *reg_cache; + int err; + + reg_cache = kzalloc(mcbsp->reg_cache_size, GFP_KERNEL); + if (!reg_cache) + return -ENOMEM; + + spin_lock(&mcbsp->lock); + if (!mcbsp->free) { + dev_err(mcbsp->dev, "McBSP%d is currently in use\n", mcbsp->id); + err = -EBUSY; + goto err_kfree; + } + + mcbsp->free = false; + mcbsp->reg_cache = reg_cache; + spin_unlock(&mcbsp->lock); + + if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->request) + mcbsp->pdata->ops->request(mcbsp->id - 1); + + /* + * Make sure that transmitter, receiver and sample-rate generator are + * not running before activating IRQs. + */ + MCBSP_WRITE(mcbsp, SPCR1, 0); + MCBSP_WRITE(mcbsp, SPCR2, 0); + + if (mcbsp->irq) { + err = request_irq(mcbsp->irq, omap_mcbsp_irq_handler, 0, + "McBSP", (void *)mcbsp); + if (err != 0) { + dev_err(mcbsp->dev, "Unable to request IRQ\n"); + goto err_clk_disable; + } + } else { + err = request_irq(mcbsp->tx_irq, omap_mcbsp_tx_irq_handler, 0, + "McBSP TX", (void *)mcbsp); + if (err != 0) { + dev_err(mcbsp->dev, "Unable to request TX IRQ\n"); + goto err_clk_disable; + } + + err = request_irq(mcbsp->rx_irq, omap_mcbsp_rx_irq_handler, 0, + "McBSP RX", (void *)mcbsp); + if (err != 0) { + dev_err(mcbsp->dev, "Unable to request RX IRQ\n"); + goto err_free_irq; + } + } + + return 0; +err_free_irq: + free_irq(mcbsp->tx_irq, (void *)mcbsp); +err_clk_disable: + if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free) + mcbsp->pdata->ops->free(mcbsp->id - 1); + + /* Disable wakeup behavior */ + if (mcbsp->pdata->has_wakeup) + MCBSP_WRITE(mcbsp, WAKEUPEN, 0); + + spin_lock(&mcbsp->lock); + mcbsp->free = true; + mcbsp->reg_cache = NULL; +err_kfree: + spin_unlock(&mcbsp->lock); + kfree(reg_cache); + + return err; +} + +static void omap_mcbsp_free(struct omap_mcbsp *mcbsp) +{ + void *reg_cache; + + if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free) + mcbsp->pdata->ops->free(mcbsp->id - 1); + + /* Disable wakeup behavior */ + if (mcbsp->pdata->has_wakeup) + MCBSP_WRITE(mcbsp, WAKEUPEN, 0); + + /* Disable interrupt requests */ + if (mcbsp->irq) + MCBSP_WRITE(mcbsp, IRQEN, 0); + + if (mcbsp->irq) { + free_irq(mcbsp->irq, (void *)mcbsp); + } else { + free_irq(mcbsp->rx_irq, (void *)mcbsp); + free_irq(mcbsp->tx_irq, (void *)mcbsp); + } + + reg_cache = mcbsp->reg_cache; + + /* + * Select CLKS source from internal source unconditionally before + * marking the McBSP port as free. + * If the external clock source via MCBSP_CLKS pin has been selected the + * system will refuse to enter idle if the CLKS pin source is not reset + * back to internal source. + */ + if (!mcbsp_omap1()) + omap2_mcbsp_set_clks_src(mcbsp, MCBSP_CLKS_PRCM_SRC); + + spin_lock(&mcbsp->lock); + if (mcbsp->free) + dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); + else + mcbsp->free = true; + mcbsp->reg_cache = NULL; + spin_unlock(&mcbsp->lock); + + kfree(reg_cache); +} + +/* + * Here we start the McBSP, by enabling transmitter, receiver or both. + * If no transmitter or receiver is active prior calling, then sample-rate + * generator and frame sync are started. + */ +static void omap_mcbsp_start(struct omap_mcbsp *mcbsp, int stream) +{ + int tx = (stream == SNDRV_PCM_STREAM_PLAYBACK); + int rx = !tx; + int enable_srg = 0; + u16 w; + + if (mcbsp->st_data) + omap_mcbsp_st_start(mcbsp); + + /* Only enable SRG, if McBSP is master */ + w = MCBSP_READ_CACHE(mcbsp, PCR0); + if (w & (FSXM | FSRM | CLKXM | CLKRM)) + enable_srg = !((MCBSP_READ_CACHE(mcbsp, SPCR2) | + MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1); + + if (enable_srg) { + /* Start the sample generator */ + w = MCBSP_READ_CACHE(mcbsp, SPCR2); + MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 6)); + } + + /* Enable transmitter and receiver */ + tx &= 1; + w = MCBSP_READ_CACHE(mcbsp, SPCR2); + MCBSP_WRITE(mcbsp, SPCR2, w | tx); + + rx &= 1; + w = MCBSP_READ_CACHE(mcbsp, SPCR1); + MCBSP_WRITE(mcbsp, SPCR1, w | rx); + + /* + * Worst case: CLKSRG*2 = 8000khz: (1/8000) * 2 * 2 usec + * REVISIT: 100us may give enough time for two CLKSRG, however + * due to some unknown PM related, clock gating etc. reason it + * is now at 500us. + */ + udelay(500); + + if (enable_srg) { + /* Start frame sync */ + w = MCBSP_READ_CACHE(mcbsp, SPCR2); + MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 7)); + } + + if (mcbsp->pdata->has_ccr) { + /* Release the transmitter and receiver */ + w = MCBSP_READ_CACHE(mcbsp, XCCR); + w &= ~(tx ? XDISABLE : 0); + MCBSP_WRITE(mcbsp, XCCR, w); + w = MCBSP_READ_CACHE(mcbsp, RCCR); + w &= ~(rx ? RDISABLE : 0); + MCBSP_WRITE(mcbsp, RCCR, w); + } + + /* Dump McBSP Regs */ + omap_mcbsp_dump_reg(mcbsp); +} + +static void omap_mcbsp_stop(struct omap_mcbsp *mcbsp, int stream) +{ + int tx = (stream == SNDRV_PCM_STREAM_PLAYBACK); + int rx = !tx; + int idle; + u16 w; + + /* Reset transmitter */ + tx &= 1; + if (mcbsp->pdata->has_ccr) { + w = MCBSP_READ_CACHE(mcbsp, XCCR); + w |= (tx ? XDISABLE : 0); + MCBSP_WRITE(mcbsp, XCCR, w); + } + w = MCBSP_READ_CACHE(mcbsp, SPCR2); + MCBSP_WRITE(mcbsp, SPCR2, w & ~tx); + + /* Reset receiver */ + rx &= 1; + if (mcbsp->pdata->has_ccr) { + w = MCBSP_READ_CACHE(mcbsp, RCCR); + w |= (rx ? RDISABLE : 0); + MCBSP_WRITE(mcbsp, RCCR, w); + } + w = MCBSP_READ_CACHE(mcbsp, SPCR1); + MCBSP_WRITE(mcbsp, SPCR1, w & ~rx); + + idle = !((MCBSP_READ_CACHE(mcbsp, SPCR2) | + MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1); + + if (idle) { + /* Reset the sample rate generator */ + w = MCBSP_READ_CACHE(mcbsp, SPCR2); + MCBSP_WRITE(mcbsp, SPCR2, w & ~(1 << 6)); + } + + if (mcbsp->st_data) + omap_mcbsp_st_stop(mcbsp); +} + +#define max_thres(m) (mcbsp->pdata->buffer_size) +#define valid_threshold(m, val) ((val) <= max_thres(m)) +#define THRESHOLD_PROP_BUILDER(prop) \ +static ssize_t prop##_show(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); \ + \ + return sprintf(buf, "%u\n", mcbsp->prop); \ +} \ + \ +static ssize_t prop##_store(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t size) \ +{ \ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); \ + unsigned long val; \ + int status; \ + \ + status = kstrtoul(buf, 0, &val); \ + if (status) \ + return status; \ + \ + if (!valid_threshold(mcbsp, val)) \ + return -EDOM; \ + \ + mcbsp->prop = val; \ + return size; \ +} \ + \ +static DEVICE_ATTR(prop, 0644, prop##_show, prop##_store) + +THRESHOLD_PROP_BUILDER(max_tx_thres); +THRESHOLD_PROP_BUILDER(max_rx_thres); + +static const char * const dma_op_modes[] = { + "element", "threshold", +}; + +static ssize_t dma_op_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); + int dma_op_mode, i = 0; + ssize_t len = 0; + const char * const *s; + + dma_op_mode = mcbsp->dma_op_mode; + + for (s = &dma_op_modes[i]; i < ARRAY_SIZE(dma_op_modes); s++, i++) { + if (dma_op_mode == i) + len += sprintf(buf + len, "[%s] ", *s); + else + len += sprintf(buf + len, "%s ", *s); + } + len += sprintf(buf + len, "\n"); + + return len; +} + +static ssize_t dma_op_mode_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t size) +{ + struct omap_mcbsp *mcbsp = dev_get_drvdata(dev); + int i; + + i = sysfs_match_string(dma_op_modes, buf); + if (i < 0) + return i; + + spin_lock_irq(&mcbsp->lock); + if (!mcbsp->free) { + size = -EBUSY; + goto unlock; + } + mcbsp->dma_op_mode = i; + +unlock: + spin_unlock_irq(&mcbsp->lock); + + return size; +} + +static DEVICE_ATTR_RW(dma_op_mode); + +static const struct attribute *additional_attrs[] = { + &dev_attr_max_tx_thres.attr, + &dev_attr_max_rx_thres.attr, + &dev_attr_dma_op_mode.attr, + NULL, +}; + +static const struct attribute_group additional_attr_group = { + .attrs = (struct attribute **)additional_attrs, +}; + +/* + * McBSP1 and McBSP3 are directly mapped on 1610 and 1510. + * 730 has only 2 McBSP, and both of them are MPU peripherals. + */ +static int omap_mcbsp_init(struct platform_device *pdev) +{ + struct omap_mcbsp *mcbsp = platform_get_drvdata(pdev); + struct resource *res; + int ret = 0; + + spin_lock_init(&mcbsp->lock); + mcbsp->free = true; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); + if (!res) + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + mcbsp->io_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mcbsp->io_base)) + return PTR_ERR(mcbsp->io_base); + + mcbsp->phys_base = res->start; + mcbsp->reg_cache_size = resource_size(res); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dma"); + if (!res) + mcbsp->phys_dma_base = mcbsp->phys_base; + else + mcbsp->phys_dma_base = res->start; + + /* + * OMAP1, 2 uses two interrupt lines: TX, RX + * OMAP2430, OMAP3 SoC have combined IRQ line as well. + * OMAP4 and newer SoC only have the combined IRQ line. + * Use the combined IRQ if available since it gives better debugging + * possibilities. + */ + mcbsp->irq = platform_get_irq_byname(pdev, "common"); + if (mcbsp->irq == -ENXIO) { + mcbsp->tx_irq = platform_get_irq_byname(pdev, "tx"); + + if (mcbsp->tx_irq == -ENXIO) { + mcbsp->irq = platform_get_irq(pdev, 0); + mcbsp->tx_irq = 0; + } else { + mcbsp->rx_irq = platform_get_irq_byname(pdev, "rx"); + mcbsp->irq = 0; + } + } + + if (!pdev->dev.of_node) { + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); + if (!res) { + dev_err(&pdev->dev, "invalid tx DMA channel\n"); + return -ENODEV; + } + mcbsp->dma_req[0] = res->start; + mcbsp->dma_data[0].filter_data = &mcbsp->dma_req[0]; + + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); + if (!res) { + dev_err(&pdev->dev, "invalid rx DMA channel\n"); + return -ENODEV; + } + mcbsp->dma_req[1] = res->start; + mcbsp->dma_data[1].filter_data = &mcbsp->dma_req[1]; + } else { + mcbsp->dma_data[0].filter_data = "tx"; + mcbsp->dma_data[1].filter_data = "rx"; + } + + mcbsp->dma_data[0].addr = omap_mcbsp_dma_reg_params(mcbsp, + SNDRV_PCM_STREAM_PLAYBACK); + mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp, + SNDRV_PCM_STREAM_CAPTURE); + + mcbsp->fclk = clk_get(&pdev->dev, "fck"); + if (IS_ERR(mcbsp->fclk)) { + ret = PTR_ERR(mcbsp->fclk); + dev_err(mcbsp->dev, "unable to get fck: %d\n", ret); + return ret; + } + + mcbsp->dma_op_mode = MCBSP_DMA_MODE_ELEMENT; + if (mcbsp->pdata->buffer_size) { + /* + * Initially configure the maximum thresholds to a safe value. + * The McBSP FIFO usage with these values should not go under + * 16 locations. + * If the whole FIFO without safety buffer is used, than there + * is a possibility that the DMA will be not able to push the + * new data on time, causing channel shifts in runtime. + */ + mcbsp->max_tx_thres = max_thres(mcbsp) - 0x10; + mcbsp->max_rx_thres = max_thres(mcbsp) - 0x10; + + ret = sysfs_create_group(&mcbsp->dev->kobj, + &additional_attr_group); + if (ret) { + dev_err(mcbsp->dev, + "Unable to create additional controls\n"); + goto err_thres; + } + } else { + mcbsp->max_tx_thres = -EINVAL; + mcbsp->max_rx_thres = -EINVAL; + } + + ret = omap_mcbsp_st_init(pdev); + if (ret) + goto err_st; + + return 0; + +err_st: + if (mcbsp->pdata->buffer_size) + sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); +err_thres: + clk_put(mcbsp->fclk); + return ret; +} + /* * Stream DMA parameters. DMA request line and port address are set runtime * since they are different between OMAP1 and later OMAPs @@ -656,132 +1343,6 @@ static const struct snd_soc_component_driver omap_mcbsp_component = { .name = "omap-mcbsp", };

-static int omap_mcbsp_st_info_volsw(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - struct soc_mixer_control *mc = - (struct soc_mixer_control *)kcontrol->private_value; - int max = mc->max; - int min = mc->min; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - uinfo->value.integer.min = min; - uinfo->value.integer.max = max; - return 0; -} - -#define OMAP_MCBSP_ST_CHANNEL_VOLUME(channel) \ -static int \ -omap_mcbsp_set_st_ch##channel##_volume(struct snd_kcontrol *kc, \ - struct snd_ctl_elem_value *uc) \ -{ \ - struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ - struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ - struct soc_mixer_control *mc = \ - (struct soc_mixer_control *)kc->private_value; \ - int max = mc->max; \ - int min = mc->min; \ - int val = uc->value.integer.value[0]; \ - \ - if (val < min || val > max) \ - return -EINVAL; \ - \ - /* OMAP McBSP implementation uses index values 0..4 */ \ - return omap_st_set_chgain(mcbsp, channel, val); \ -} \ - \ -static int \ -omap_mcbsp_get_st_ch##channel##_volume(struct snd_kcontrol *kc, \ - struct snd_ctl_elem_value *uc) \ -{ \ - struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kc); \ - struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); \ - s16 chgain; \ - \ - if (omap_st_get_chgain(mcbsp, channel, &chgain)) \ - return -EAGAIN; \ - \ - uc->value.integer.value[0] = chgain; \ - return 0; \ -} - -OMAP_MCBSP_ST_CHANNEL_VOLUME(0) -OMAP_MCBSP_ST_CHANNEL_VOLUME(1) - -static int omap_mcbsp_st_put_mode(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); - struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); - u8 value = ucontrol->value.integer.value[0]; - - if (value == omap_st_is_enabled(mcbsp)) - return 0; - - if (value) - omap_st_enable(mcbsp); - else - omap_st_disable(mcbsp); - - return 1; -} - -static int omap_mcbsp_st_get_mode(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); - struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); - - ucontrol->value.integer.value[0] = omap_st_is_enabled(mcbsp); - return 0; -} - -#define OMAP_MCBSP_ST_CONTROLS(port) \ -static const struct snd_kcontrol_new omap_mcbsp##port##_st_controls[] = { \ -SOC_SINGLE_EXT("McBSP" #port " Sidetone Switch", 1, 0, 1, 0, \ - omap_mcbsp_st_get_mode, omap_mcbsp_st_put_mode), \ -OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP" #port " Sidetone Channel 0 Volume", \ - -32768, 32767, \ - omap_mcbsp_get_st_ch0_volume, \ - omap_mcbsp_set_st_ch0_volume), \ -OMAP_MCBSP_SOC_SINGLE_S16_EXT("McBSP" #port " Sidetone Channel 1 Volume", \ - -32768, 32767, \ - omap_mcbsp_get_st_ch1_volume, \ - omap_mcbsp_set_st_ch1_volume), \ -} - -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) -{ - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct omap_mcbsp *mcbsp = snd_soc_dai_get_drvdata(cpu_dai); - - if (!mcbsp->st_data) { - dev_warn(mcbsp->dev, "No sidetone data for port\n"); - return 0; - } - - switch (port_id) { - case 2: /* McBSP 2 */ - return snd_soc_add_dai_controls(cpu_dai, - omap_mcbsp2_st_controls, - ARRAY_SIZE(omap_mcbsp2_st_controls)); - case 3: /* McBSP 3 */ - return snd_soc_add_dai_controls(cpu_dai, - omap_mcbsp3_st_controls, - ARRAY_SIZE(omap_mcbsp3_st_controls)); - default: - dev_err(mcbsp->dev, "Port %d not supported\n", port_id); - break; - } - - return -EINVAL; -} -EXPORT_SYMBOL_GPL(omap_mcbsp_st_add_controls); - static struct omap_mcbsp_platform_data omap2420_pdata = { .reg_step = 4, .reg_size = 2, @@ -893,7 +1454,10 @@ static int asoc_mcbsp_remove(struct platform_device *pdev) if (pm_qos_request_active(&mcbsp->pm_qos_req)) pm_qos_remove_request(&mcbsp->pm_qos_req);

- omap_mcbsp_cleanup(mcbsp); + if (mcbsp->pdata->buffer_size) + sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); + + omap_mcbsp_st_cleanup(pdev);

clk_put(mcbsp->fclk);

diff --git a/sound/soc/omap/omap-mcbsp.h b/sound/soc/omap/omap-mcbsp.h index 2e3369c27be3..7911d24898c9 100644 --- a/sound/soc/omap/omap-mcbsp.h +++ b/sound/soc/omap/omap-mcbsp.h @@ -22,8 +22,10 @@ * */

-#ifndef __OMAP_I2S_H__ -#define __OMAP_I2S_H__ +#ifndef __OMAP_MCBSP_H__ +#define __OMAP_MCBSP_H__ + +#include <sound/dmaengine_pcm.h>

/* Source clocks for McBSP sample rate generator */ enum omap_mcbsp_clksrg_clk { @@ -41,4 +43,4 @@ enum omap_mcbsp_div {

int omap_mcbsp_st_add_controls(struct snd_soc_pcm_runtime *rtd, int port_id);

-#endif +#endif /* __OMAP_MCBSP_H__ */