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-rw-r--r--sound/soc/s3c24xx/Kconfig10
-rw-r--r--sound/soc/s3c24xx/Makefile6
-rw-r--r--sound/soc/s3c24xx/s3c24xx-i2s.c441
-rw-r--r--sound/soc/s3c24xx/s3c24xx-i2s.h37
-rw-r--r--sound/soc/s3c24xx/s3c24xx-pcm.c468
-rw-r--r--sound/soc/s3c24xx/s3c24xx-pcm.h31
6 files changed, 0 insertions, 993 deletions
diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
deleted file mode 100644
index 044a3712077..00000000000
--- a/sound/soc/s3c24xx/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-config SND_S3C24XX_SOC
- tristate "SoC Audio for the Samsung S3C24XX chips"
- depends on ARCH_S3C2410 && SND_SOC
- help
- Say Y or M if you want to add support for codecs attached to
- the S3C24XX AC97, I2S or SSP interface. You will also need
- to select the audio interfaces to support below.
-
-config SND_S3C24XX_SOC_I2S
- tristate
diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
deleted file mode 100644
index 6f0fffcb30f..00000000000
--- a/sound/soc/s3c24xx/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# S3c24XX Platform Support
-snd-soc-s3c24xx-objs := s3c24xx-pcm.o
-snd-soc-s3c24xx-i2s-objs := s3c24xx-i2s.o
-
-obj-$(CONFIG_SND_S3C24XX_SOC) += snd-soc-s3c24xx.o
-obj-$(CONFIG_SND_S3C24XX_SOC_I2S) += snd-soc-s3c24xx-i2s.o
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.c b/sound/soc/s3c24xx/s3c24xx-i2s.c
deleted file mode 100644
index 8ca314dc889..00000000000
--- a/sound/soc/s3c24xx/s3c24xx-i2s.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * s3c24xx-i2s.c -- ALSA Soc Audio Layer
- *
- * (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * (c) 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * 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.
- *
- *
- * Revision history
- * 11th Dec 2006 Merged with Simtec driver
- * 10th Nov 2006 Initial version.
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/clk.h>
-#include <sound/driver.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/arch/regs-iis.h>
-#include <asm/arch/regs-gpio.h>
-#include <asm/arch/regs-clock.h>
-#include <asm/arch/audio.h>
-#include <asm/dma.h>
-#include <asm/arch/dma.h>
-
-#include "s3c24xx-pcm.h"
-#include "s3c24xx-i2s.h"
-
-#define S3C24XX_I2S_DEBUG 0
-#if S3C24XX_I2S_DEBUG
-#define DBG(x...) printk(KERN_DEBUG x)
-#else
-#define DBG(x...)
-#endif
-
-static struct s3c2410_dma_client s3c24xx_dma_client_out = {
- .name = "I2S PCM Stereo out"
-};
-
-static struct s3c2410_dma_client s3c24xx_dma_client_in = {
- .name = "I2S PCM Stereo in"
-};
-
-static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_out = {
- .client = &s3c24xx_dma_client_out,
- .channel = DMACH_I2S_OUT,
- .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
- .dma_size = 2,
-};
-
-static struct s3c24xx_pcm_dma_params s3c24xx_i2s_pcm_stereo_in = {
- .client = &s3c24xx_dma_client_in,
- .channel = DMACH_I2S_IN,
- .dma_addr = S3C2410_PA_IIS + S3C2410_IISFIFO,
- .dma_size = 2,
-};
-
-struct s3c24xx_i2s_info {
- void __iomem *regs;
- struct clk *iis_clk;
-};
-static struct s3c24xx_i2s_info s3c24xx_i2s;
-
-static void s3c24xx_snd_txctrl(int on)
-{
- u32 iisfcon;
- u32 iiscon;
- u32 iismod;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- DBG("r: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
-
- if (on) {
- iisfcon |= S3C2410_IISFCON_TXDMA | S3C2410_IISFCON_TXENABLE;
- iiscon |= S3C2410_IISCON_TXDMAEN | S3C2410_IISCON_IISEN;
- iiscon &= ~S3C2410_IISCON_TXIDLE;
- iismod |= S3C2410_IISMOD_TXMODE;
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- } else {
- /* note, we have to disable the FIFOs otherwise bad things
- * seem to happen when the DMA stops. According to the
- * Samsung supplied kernel, this should allow the DMA
- * engine and FIFOs to reset. If this isn't allowed, the
- * DMA engine will simply freeze randomly.
- */
-
- iisfcon &= ~S3C2410_IISFCON_TXENABLE;
- iisfcon &= ~S3C2410_IISFCON_TXDMA;
- iiscon |= S3C2410_IISCON_TXIDLE;
- iiscon &= ~S3C2410_IISCON_TXDMAEN;
- iismod &= ~S3C2410_IISMOD_TXMODE;
-
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- }
-
- DBG("w: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
-}
-
-static void s3c24xx_snd_rxctrl(int on)
-{
- u32 iisfcon;
- u32 iiscon;
- u32 iismod;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- iisfcon = readl(s3c24xx_i2s.regs + S3C2410_IISFCON);
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- DBG("r: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
-
- if (on) {
- iisfcon |= S3C2410_IISFCON_RXDMA | S3C2410_IISFCON_RXENABLE;
- iiscon |= S3C2410_IISCON_RXDMAEN | S3C2410_IISCON_IISEN;
- iiscon &= ~S3C2410_IISCON_RXIDLE;
- iismod |= S3C2410_IISMOD_RXMODE;
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- } else {
- /* note, we have to disable the FIFOs otherwise bad things
- * seem to happen when the DMA stops. According to the
- * Samsung supplied kernel, this should allow the DMA
- * engine and FIFOs to reset. If this isn't allowed, the
- * DMA engine will simply freeze randomly.
- */
-
- iisfcon &= ~S3C2410_IISFCON_RXENABLE;
- iisfcon &= ~S3C2410_IISFCON_RXDMA;
- iiscon |= S3C2410_IISCON_RXIDLE;
- iiscon &= ~S3C2410_IISCON_RXDMAEN;
- iismod &= ~S3C2410_IISMOD_RXMODE;
-
- writel(iisfcon, s3c24xx_i2s.regs + S3C2410_IISFCON);
- writel(iiscon, s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- }
-
- DBG("w: IISCON: %lx IISMOD: %lx IISFCON: %lx\n", iiscon, iismod, iisfcon);
-}
-
-/*
- * Wait for the LR signal to allow synchronisation to the L/R clock
- * from the codec. May only be needed for slave mode.
- */
-static int s3c24xx_snd_lrsync(void)
-{
- u32 iiscon;
- unsigned long timeout = jiffies + msecs_to_jiffies(5);
-
- DBG("Entered %s\n", __FUNCTION__);
-
- while (1) {
- iiscon = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- if (iiscon & S3C2410_IISCON_LRINDEX)
- break;
-
- if (timeout < jiffies)
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-/*
- * Check whether CPU is the master or slave
- */
-static inline int s3c24xx_snd_is_clkmaster(void)
-{
- DBG("Entered %s\n", __FUNCTION__);
-
- return (readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & S3C2410_IISMOD_SLAVE) ? 0:1;
-}
-
-/*
- * Set S3C24xx I2S DAI format
- */
-static int s3c24xx_i2s_set_fmt(struct snd_soc_cpu_dai *cpu_dai,
- unsigned int fmt)
-{
- u32 iismod;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
- DBG("hw_params r: IISMOD: %lx \n", iismod);
-
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- iismod |= S3C2410_IISMOD_SLAVE;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- break;
- default:
- return -EINVAL;
- }
-
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_LEFT_J:
- iismod |= S3C2410_IISMOD_MSB;
- break;
- case SND_SOC_DAIFMT_I2S:
- break;
- default:
- return -EINVAL;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- DBG("hw_params w: IISMOD: %lx \n", iismod);
- return 0;
-}
-
-static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- u32 iismod;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_out;
- else
- rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_in;
-
- /* Working copies of register */
- iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
- DBG("hw_params r: IISMOD: %lx\n", iismod);
-
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S8:
- break;
- case SNDRV_PCM_FORMAT_S16_LE:
- iismod |= S3C2410_IISMOD_16BIT;
- break;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- DBG("hw_params w: IISMOD: %lx\n", iismod);
- return 0;
-}
-
-static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- int ret = 0;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!s3c24xx_snd_is_clkmaster()) {
- ret = s3c24xx_snd_lrsync();
- if (ret)
- goto exit_err;
- }
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c24xx_snd_rxctrl(1);
- else
- s3c24xx_snd_txctrl(1);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- s3c24xx_snd_rxctrl(0);
- else
- s3c24xx_snd_txctrl(0);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
-exit_err:
- return ret;
-}
-
-/*
- * Set S3C24xx Clock source
- */
-static int s3c24xx_i2s_set_sysclk(struct snd_soc_cpu_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
-{
- u32 iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
-
- DBG("Entered %s\n", __FUNCTION__);
-
- iismod &= ~S3C2440_IISMOD_MPLL;
-
- switch (clk_id) {
- case S3C24XX_CLKSRC_PCLK:
- break;
- case S3C24XX_CLKSRC_MPLL:
- iismod |= S3C2440_IISMOD_MPLL;
- break;
- default:
- return -EINVAL;
- }
-
- writel(iismod, s3c24xx_i2s.regs + S3C2410_IISMOD);
- return 0;
-}
-
-/*
- * Set S3C24xx Clock dividers
- */
-static int s3c24xx_i2s_set_clkdiv(struct snd_soc_cpu_dai *cpu_dai,
- int div_id, int div)
-{
- u32 reg;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- switch (div_id) {
- case S3C24XX_DIV_MCLK:
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~S3C2410_IISMOD_FS_MASK;
- writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
- break;
- case S3C24XX_DIV_BCLK:
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISMOD) & ~(S3C2410_IISMOD_384FS);
- writel(reg | div, s3c24xx_i2s.regs + S3C2410_IISMOD);
- break;
- case S3C24XX_DIV_PRESCALER:
- writel(div, s3c24xx_i2s.regs + S3C2410_IISPSR);
- reg = readl(s3c24xx_i2s.regs + S3C2410_IISCON);
- writel(reg | S3C2410_IISCON_PSCEN, s3c24xx_i2s.regs + S3C2410_IISCON);
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-/*
- * To avoid duplicating clock code, allow machine driver to
- * get the clockrate from here.
- */
-u32 s3c24xx_i2s_get_clockrate(void)
-{
- return clk_get_rate(s3c24xx_i2s.iis_clk);
-}
-EXPORT_SYMBOL_GPL(s3c24xx_i2s_get_clockrate);
-
-static int s3c24xx_i2s_probe(struct platform_device *pdev)
-{
- DBG("Entered %s\n", __FUNCTION__);
-
- s3c24xx_i2s.regs = ioremap(S3C2410_PA_IIS, 0x100);
- if (s3c24xx_i2s.regs == NULL)
- return -ENXIO;
-
- s3c24xx_i2s.iis_clk=clk_get(&pdev->dev, "iis");
- if (s3c24xx_i2s.iis_clk == NULL) {
- DBG("failed to get iis_clock\n");
- return -ENODEV;
- }
- clk_enable(s3c24xx_i2s.iis_clk);
-
- /* Configure the I2S pins in correct mode */
- s3c2410_gpio_cfgpin(S3C2410_GPE0, S3C2410_GPE0_I2SLRCK);
- s3c2410_gpio_cfgpin(S3C2410_GPE1, S3C2410_GPE1_I2SSCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE2, S3C2410_GPE2_CDCLK);
- s3c2410_gpio_cfgpin(S3C2410_GPE3, S3C2410_GPE3_I2SSDI);
- s3c2410_gpio_cfgpin(S3C2410_GPE4, S3C2410_GPE4_I2SSDO);
-
- writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);
-
- s3c24xx_snd_txctrl(0);
- s3c24xx_snd_rxctrl(0);
-
- return 0;
-}
-
-#define S3C24XX_I2S_RATES \
- (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
- SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
- SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-
-struct snd_soc_cpu_dai s3c24xx_i2s_dai = {
- .name = "s3c24xx-i2s",
- .id = 0,
- .type = SND_SOC_DAI_I2S,
- .probe = s3c24xx_i2s_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C24XX_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = S3C24XX_I2S_RATES,
- .formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE,},
- .ops = {
- .trigger = s3c24xx_i2s_trigger,
- .hw_params = s3c24xx_i2s_hw_params,},
- .dai_ops = {
- .set_fmt = s3c24xx_i2s_set_fmt,
- .set_clkdiv = s3c24xx_i2s_set_clkdiv,
- .set_sysclk = s3c24xx_i2s_set_sysclk,
- },
-};
-EXPORT_SYMBOL_GPL(s3c24xx_i2s_dai);
-
-/* Module information */
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("s3c24xx I2S SoC Interface");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/s3c24xx/s3c24xx-i2s.h b/sound/soc/s3c24xx/s3c24xx-i2s.h
deleted file mode 100644
index 537b4ecce8a..00000000000
--- a/sound/soc/s3c24xx/s3c24xx-i2s.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * s3c24xx-i2s.c -- ALSA Soc Audio Layer
- *
- * Copyright 2005 Wolfson Microelectronics PLC.
- * Author: Graeme Gregory
- * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * Revision history
- * 10th Nov 2006 Initial version.
- */
-
-#ifndef S3C24XXI2S_H_
-#define S3C24XXI2S_H_
-
-/* clock sources */
-#define S3C24XX_CLKSRC_PCLK 0
-#define S3C24XX_CLKSRC_MPLL 1
-
-/* Clock dividers */
-#define S3C24XX_DIV_MCLK 0
-#define S3C24XX_DIV_BCLK 1
-#define S3C24XX_DIV_PRESCALER 2
-
-/* prescaler */
-#define S3C24XX_PRESCALE(a,b) \
- (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT))
-
-u32 s3c24xx_i2s_get_clockrate(void);
-
-extern struct snd_soc_cpu_dai s3c24xx_i2s_dai;
-
-#endif /*S3C24XXI2S_H_*/
diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.c b/sound/soc/s3c24xx/s3c24xx-pcm.c
deleted file mode 100644
index 21dc6974d6a..00000000000
--- a/sound/soc/s3c24xx/s3c24xx-pcm.c
+++ /dev/null
@@ -1,468 +0,0 @@
-/*
- * s3c24xx-pcm.c -- ALSA Soc Audio Layer
- *
- * (c) 2006 Wolfson Microelectronics PLC.
- * Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
- *
- * (c) 2004-2005 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * 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.
- *
- * Revision history
- * 11th Dec 2006 Merged with Simtec driver
- * 10th Nov 2006 Initial version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-
-#include <sound/driver.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include <asm/arch/dma.h>
-#include <asm/arch/audio.h>
-
-#include "s3c24xx-pcm.h"
-
-#define S3C24XX_PCM_DEBUG 0
-#if S3C24XX_PCM_DEBUG
-#define DBG(x...) printk(KERN_DEBUG x)
-#else
-#define DBG(x...)
-#endif
-
-static const struct snd_pcm_hardware s3c24xx_pcm_hardware = {
- .info = SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_U16_LE |
- SNDRV_PCM_FMTBIT_U8 |
- SNDRV_PCM_FMTBIT_S8,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 128*1024,
- .period_bytes_min = PAGE_SIZE,
- .period_bytes_max = PAGE_SIZE*2,
- .periods_min = 2,
- .periods_max = 128,
- .fifo_size = 32,
-};
-
-struct s3c24xx_runtime_data {
- spinlock_t lock;
- int state;
- unsigned int dma_loaded;
- unsigned int dma_limit;
- unsigned int dma_period;
- dma_addr_t dma_start;
- dma_addr_t dma_pos;
- dma_addr_t dma_end;
- struct s3c24xx_pcm_dma_params *params;
-};
-
-/* s3c24xx_pcm_enqueue
- *
- * place a dma buffer onto the queue for the dma system
- * to handle.
-*/
-static void s3c24xx_pcm_enqueue(struct snd_pcm_substream *substream)
-{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
- dma_addr_t pos = prtd->dma_pos;
- int ret;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- while (prtd->dma_loaded < prtd->dma_limit) {
- unsigned long len = prtd->dma_period;
-
- DBG("dma_loaded: %d\n",prtd->dma_loaded);
-
- if ((pos + len) > prtd->dma_end) {
- len = prtd->dma_end - pos;
- DBG(KERN_DEBUG "%s: corrected dma len %ld\n",
- __FUNCTION__, len);
- }
-
- ret = s3c2410_dma_enqueue(prtd->params->channel,
- substream, pos, len);
-
- if (ret == 0) {
- prtd->dma_loaded++;
- pos += prtd->dma_period;
- if (pos >= prtd->dma_end)
- pos = prtd->dma_start;
- } else
- break;
- }
-
- prtd->dma_pos = pos;
-}
-
-static void s3c24xx_audio_buffdone(struct s3c2410_dma_chan *channel,
- void *dev_id, int size,
- enum s3c2410_dma_buffresult result)
-{
- struct snd_pcm_substream *substream = dev_id;
- struct s3c24xx_runtime_data *prtd;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- if (result == S3C2410_RES_ABORT || result == S3C2410_RES_ERR)
- return;
-
- prtd = substream->runtime->private_data;
-
- if (substream)
- snd_pcm_period_elapsed(substream);
-
- spin_lock(&prtd->lock);
- if (prtd->state & ST_RUNNING) {
- prtd->dma_loaded--;
- s3c24xx_pcm_enqueue(substream);
- }
-
- spin_unlock(&prtd->lock);
-}
-
-static int s3c24xx_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct s3c24xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_data;
- unsigned long totbytes = params_buffer_bytes(params);
- int ret=0;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- /* return if this is a bufferless transfer e.g.
- * codec <--> BT codec or GSM modem -- lg FIXME */
- if (!dma)
- return 0;
-
- /* prepare DMA */
- prtd->params = dma;
-
- DBG("params %p, client %p, channel %d\n", prtd->params,
- prtd->params->client, prtd->params->channel);
-
- ret = s3c2410_dma_request(prtd->params->channel,
- prtd->params->client, NULL);
-
- if (ret) {
- DBG(KERN_ERR "failed to get dma channel\n");
- return ret;
- }
-
- /* channel needs configuring for mem=>device, increment memory addr,
- * sync to pclk, half-word transfers to the IIS-FIFO. */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
- S3C2410_DISRCC_APB, prtd->params->dma_addr);
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_SYNC_PCLK |
- S3C2410_DCON_HANDSHAKE);
- } else {
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_HANDSHAKE |
- S3C2410_DCON_SYNC_PCLK);
-
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW, 0x3,
- prtd->params->dma_addr);
- }
-
- s3c2410_dma_set_buffdone_fn(prtd->params->channel,
- s3c24xx_audio_buffdone);
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-
- runtime->dma_bytes = totbytes;
-
- spin_lock_irq(&prtd->lock);
- prtd->dma_loaded = 0;
- prtd->dma_limit = runtime->hw.periods_min;
- prtd->dma_period = params_period_bytes(params);
- prtd->dma_start = runtime->dma_addr;
- prtd->dma_pos = prtd->dma_start;
- prtd->dma_end = prtd->dma_start + totbytes;
- spin_unlock_irq(&prtd->lock);
-
- return 0;
-}
-
-static int s3c24xx_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- /* TODO - do we need to ensure DMA flushed */
- snd_pcm_set_runtime_buffer(substream, NULL);
-
- if (prtd->params) {
- s3c2410_dma_free(prtd->params->channel, prtd->params->client);
- prtd->params = NULL;
- }
-
- return 0;
-}
-
-static int s3c24xx_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
- int ret = 0;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- /* return if this is a bufferless transfer e.g.
- * codec <--> BT codec or GSM modem -- lg FIXME */
- if (!prtd->params)
- return 0;
-
- /* flush the DMA channel */
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
- prtd->dma_loaded = 0;
- prtd->dma_pos = prtd->dma_start;
-
- /* enqueue dma buffers */
- s3c24xx_pcm_enqueue(substream);
-
- return ret;
-}
-
-static int s3c24xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
- int ret = 0;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- spin_lock(&prtd->lock);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- prtd->state |= ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_START);
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_STARTED);
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- prtd->state &= ~ST_RUNNING;
- s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_STOP);
- break;
-
- default:
- ret = -EINVAL;
- break;
- }
-
- spin_unlock(&prtd->lock);
-
- return ret;
-}
-
-static snd_pcm_uframes_t
- s3c24xx_pcm_pointer(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
- unsigned long res;
- dma_addr_t src, dst;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- spin_lock(&prtd->lock);
- s3c2410_dma_getposition(prtd->params->channel, &src, &dst);
-
- if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
- res = dst - prtd->dma_start;
- else
- res = src - prtd->dma_start;
-
- spin_unlock(&prtd->lock);
-
- DBG("Pointer %x %x\n",src,dst);
-
- /* we seem to be getting the odd error from the pcm library due
- * to out-of-bounds pointers. this is maybe due to the dma engine
- * not having loaded the new values for the channel before being
- * callled... (todo - fix )
- */
-
- if (res >= snd_pcm_lib_buffer_bytes(substream)) {
- if (res == snd_pcm_lib_buffer_bytes(substream))
- res = 0;
- }
-
- return bytes_to_frames(substream->runtime, res);
-}
-
-static int s3c24xx_pcm_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- snd_soc_set_runtime_hwparams(substream, &s3c24xx_pcm_hardware);
-
- prtd = kzalloc(sizeof(struct s3c24xx_runtime_data), GFP_KERNEL);
- if (prtd == NULL)
- return -ENOMEM;
-
- runtime->private_data = prtd;
- return 0;
-}
-
-static int s3c24xx_pcm_close(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- if (prtd)
- kfree(prtd);
- else
- DBG("s3c24xx_pcm_close called with prtd == NULL\n");
-
- return 0;
-}
-
-static int s3c24xx_pcm_mmap(struct snd_pcm_substream *substream,
- struct vm_area_struct *vma)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- return dma_mmap_writecombine(substream->pcm->card->dev, vma,
- runtime->dma_area,
- runtime->dma_addr,
- runtime->dma_bytes);
-}
-
-static struct snd_pcm_ops s3c24xx_pcm_ops = {
- .open = s3c24xx_pcm_open,
- .close = s3c24xx_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = s3c24xx_pcm_hw_params,
- .hw_free = s3c24xx_pcm_hw_free,
- .prepare = s3c24xx_pcm_prepare,
- .trigger = s3c24xx_pcm_trigger,
- .pointer = s3c24xx_pcm_pointer,
- .mmap = s3c24xx_pcm_mmap,
-};
-
-static int s3c24xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
-{
- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
- struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = s3c24xx_pcm_hardware.buffer_bytes_max;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- buf->dev.type = SNDRV_DMA_TYPE_DEV;
- buf->dev.dev = pcm->card->dev;
- buf->private_data = NULL;
- buf->area = dma_alloc_writecombine(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
- if (!buf->area)
- return -ENOMEM;
- buf->bytes = size;
- return 0;
-}
-
-static void s3c24xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
-{
- struct snd_pcm_substream *substream;
- struct snd_dma_buffer *buf;
- int stream;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- for (stream = 0; stream < 2; stream++) {
- substream = pcm->streams[stream].substream;
- if (!substream)
- continue;
-
- buf = &substream->dma_buffer;
- if (!buf->area)
- continue;
-
- dma_free_writecombine(pcm->card->dev, buf->bytes,
- buf->area, buf->addr);
- buf->area = NULL;
- }
-}
-
-static u64 s3c24xx_pcm_dmamask = DMA_32BIT_MASK;
-
-static int s3c24xx_pcm_new(struct snd_card *card,
- struct snd_soc_codec_dai *dai, struct snd_pcm *pcm)
-{
- int ret = 0;
-
- DBG("Entered %s\n", __FUNCTION__);
-
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &s3c24xx_pcm_dmamask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
-
- if (dai->playback.channels_min) {
- ret = s3c24xx_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_PLAYBACK);
- if (ret)
- goto out;
- }
-
- if (dai->capture.channels_min) {
- ret = s3c24xx_pcm_preallocate_dma_buffer(pcm,
- SNDRV_PCM_STREAM_CAPTURE);
- if (ret)
- goto out;
- }
- out:
- return ret;
-}
-
-struct snd_soc_platform s3c24xx_soc_platform = {
- .name = "s3c24xx-audio",
- .pcm_ops = &s3c24xx_pcm_ops,
- .pcm_new = s3c24xx_pcm_new,
- .pcm_free = s3c24xx_pcm_free_dma_buffers,
-};
-
-EXPORT_SYMBOL_GPL(s3c24xx_soc_platform);
-
-MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung S3C24XX PCM DMA module");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/s3c24xx/s3c24xx-pcm.h b/sound/soc/s3c24xx/s3c24xx-pcm.h
deleted file mode 100644
index 0088c79822e..00000000000
--- a/sound/soc/s3c24xx/s3c24xx-pcm.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * s3c24xx-pcm.h --
- *
- * 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.
- *
- * ALSA PCM interface for the Samsung S3C24xx CPU
- */
-
-#ifndef _S3C24XX_PCM_H
-#define _S3C24XX_PCM_H
-
-#define ST_RUNNING (1<<0)
-#define ST_OPENED (1<<1)
-
-struct s3c24xx_pcm_dma_params {
- struct s3c2410_dma_client *client; /* stream identifier */
- int channel; /* Channel ID */
- dma_addr_t dma_addr;
- int dma_size; /* Size of the DMA transfer */
-};
-
-#define S3C24XX_DAI_I2S 0
-
-/* platform data */
-extern struct snd_soc_platform s3c24xx_soc_platform;
-extern struct snd_ac97_bus_ops s3c24xx_ac97_ops;
-
-#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-20 18:24:42 +0000