From: Jassi Brar jassi.brar@samsung.com
Rename Samsung PCM Controller driver s3c-pcm.[c/h] -> pcm.[c/h]
Signed-off-by: Jassi Brar jassi.brar@samsung.com --- sound/soc/s3c24xx/Makefile | 4 +- sound/soc/s3c24xx/pcm.c | 552 +++++++++++++++++++++++++++++++++++++++++++ sound/soc/s3c24xx/pcm.h | 124 ++++++++++ sound/soc/s3c24xx/s3c-pcm.c | 552 ------------------------------------------- sound/soc/s3c24xx/s3c-pcm.h | 124 ---------- 5 files changed, 678 insertions(+), 678 deletions(-) create mode 100644 sound/soc/s3c24xx/pcm.c create mode 100644 sound/soc/s3c24xx/pcm.h delete mode 100644 sound/soc/s3c24xx/s3c-pcm.c delete mode 100644 sound/soc/s3c24xx/s3c-pcm.h
diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile index 551a63d..93de2a0 100644 --- a/sound/soc/s3c24xx/Makefile +++ b/sound/soc/s3c24xx/Makefile @@ -6,8 +6,8 @@ snd-soc-s3c64xx-i2s-objs := s3c64xx-i2s.o snd-soc-ac97-objs := ac97.o snd-soc-s3c64xx-i2s-v4-objs := s3c64xx-i2s-v4.o snd-soc-s3c-i2s-v2-objs := s3c-i2s-v2.o -snd-soc-s3c-pcm-objs := s3c-pcm.o snd-soc-samsung-spdif-objs := spdif.o +snd-soc-pcm-objs := pcm.o
obj-$(CONFIG_SND_S3C24XX_SOC) += snd-soc-s3c24xx.o obj-$(CONFIG_SND_S3C24XX_SOC_I2S) += snd-soc-s3c24xx-i2s.o @@ -16,8 +16,8 @@ obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o obj-$(CONFIG_SND_S3C64XX_SOC_I2S) += snd-soc-s3c64xx-i2s.o obj-$(CONFIG_SND_S3C64XX_SOC_I2S_V4) += snd-soc-s3c64xx-i2s-v4.o obj-$(CONFIG_SND_S3C_I2SV2_SOC) += snd-soc-s3c-i2s-v2.o -obj-$(CONFIG_SND_S3C_SOC_PCM) += snd-soc-s3c-pcm.o obj-$(CONFIG_SND_S5P_SOC_SPDIF) += snd-soc-samsung-spdif.o +obj-$(CONFIG_SND_S3C_SOC_PCM) += snd-soc-pcm.o
# S3C24XX Machine Support snd-soc-jive-wm8750-objs := jive_wm8750.o diff --git a/sound/soc/s3c24xx/pcm.c b/sound/soc/s3c24xx/pcm.c new file mode 100644 index 0000000..4d0f6e4 --- /dev/null +++ b/sound/soc/s3c24xx/pcm.c @@ -0,0 +1,552 @@ +/* sound/soc/s3c24xx/pcm.c + * + * ALSA SoC Audio Layer - S3C PCM-Controller driver + * + * Copyright (c) 2009 Samsung Electronics Co. Ltd + * Author: Jaswinder Singh jassi.brar@samsung.com + * based upon I2S drivers by Ben Dooks. + * + * 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. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/kernel.h> +#include <linux/gpio.h> +#include <linux/io.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#include <plat/audio.h> +#include <plat/dma.h> + +#include "dma.h" +#include "pcm.h" + +static struct s3c2410_dma_client s3c_pcm_dma_client_out = { + .name = "PCM Stereo out" +}; + +static struct s3c2410_dma_client s3c_pcm_dma_client_in = { + .name = "PCM Stereo in" +}; + +static struct s3c_dma_params s3c_pcm_stereo_out[] = { + [0] = { + .client = &s3c_pcm_dma_client_out, + .dma_size = 4, + }, + [1] = { + .client = &s3c_pcm_dma_client_out, + .dma_size = 4, + }, +}; + +static struct s3c_dma_params s3c_pcm_stereo_in[] = { + [0] = { + .client = &s3c_pcm_dma_client_in, + .dma_size = 4, + }, + [1] = { + .client = &s3c_pcm_dma_client_in, + .dma_size = 4, + }, +}; + +static struct s3c_pcm_info s3c_pcm[2]; + +static void s3c_pcm_snd_txctrl(struct s3c_pcm_info *pcm, int on) +{ + void __iomem *regs = pcm->regs; + u32 ctl, clkctl; + + clkctl = readl(regs + S3C_PCM_CLKCTL); + ctl = readl(regs + S3C_PCM_CTL); + ctl &= ~(S3C_PCM_CTL_TXDIPSTICK_MASK + << S3C_PCM_CTL_TXDIPSTICK_SHIFT); + + if (on) { + ctl |= S3C_PCM_CTL_TXDMA_EN; + ctl |= S3C_PCM_CTL_TXFIFO_EN; + ctl |= S3C_PCM_CTL_ENABLE; + ctl |= (0x4<<S3C_PCM_CTL_TXDIPSTICK_SHIFT); + clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; + } else { + ctl &= ~S3C_PCM_CTL_TXDMA_EN; + ctl &= ~S3C_PCM_CTL_TXFIFO_EN; + + if (!(ctl & S3C_PCM_CTL_RXFIFO_EN)) { + ctl &= ~S3C_PCM_CTL_ENABLE; + if (!pcm->idleclk) + clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; + } + } + + writel(clkctl, regs + S3C_PCM_CLKCTL); + writel(ctl, regs + S3C_PCM_CTL); +} + +static void s3c_pcm_snd_rxctrl(struct s3c_pcm_info *pcm, int on) +{ + void __iomem *regs = pcm->regs; + u32 ctl, clkctl; + + ctl = readl(regs + S3C_PCM_CTL); + clkctl = readl(regs + S3C_PCM_CLKCTL); + ctl &= ~(S3C_PCM_CTL_RXDIPSTICK_MASK + << S3C_PCM_CTL_RXDIPSTICK_SHIFT); + + if (on) { + ctl |= S3C_PCM_CTL_RXDMA_EN; + ctl |= S3C_PCM_CTL_RXFIFO_EN; + ctl |= S3C_PCM_CTL_ENABLE; + ctl |= (0x20<<S3C_PCM_CTL_RXDIPSTICK_SHIFT); + clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; + } else { + ctl &= ~S3C_PCM_CTL_RXDMA_EN; + ctl &= ~S3C_PCM_CTL_RXFIFO_EN; + + if (!(ctl & S3C_PCM_CTL_TXFIFO_EN)) { + ctl &= ~S3C_PCM_CTL_ENABLE; + if (!pcm->idleclk) + clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; + } + } + + writel(clkctl, regs + S3C_PCM_CLKCTL); + writel(ctl, regs + S3C_PCM_CTL); +} + +static int s3c_pcm_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai); + unsigned long flags; + + dev_dbg(pcm->dev, "Entered %s\n", __func__); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + spin_lock_irqsave(&pcm->lock, flags); + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + s3c_pcm_snd_rxctrl(pcm, 1); + else + s3c_pcm_snd_txctrl(pcm, 1); + + spin_unlock_irqrestore(&pcm->lock, flags); + break; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + spin_lock_irqsave(&pcm->lock, flags); + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + s3c_pcm_snd_rxctrl(pcm, 0); + else + s3c_pcm_snd_txctrl(pcm, 0); + + spin_unlock_irqrestore(&pcm->lock, flags); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int s3c_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *socdai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai); + struct s3c_dma_params *dma_data; + void __iomem *regs = pcm->regs; + struct clk *clk; + int sclk_div, sync_div; + unsigned long flags; + u32 clkctl; + + dev_dbg(pcm->dev, "Entered %s\n", __func__); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dma_data = pcm->dma_playback; + else + dma_data = pcm->dma_capture; + + snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data); + + /* Strictly check for sample size */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + default: + return -EINVAL; + } + + spin_lock_irqsave(&pcm->lock, flags); + + /* Get hold of the PCMSOURCE_CLK */ + clkctl = readl(regs + S3C_PCM_CLKCTL); + if (clkctl & S3C_PCM_CLKCTL_SERCLKSEL_PCLK) + clk = pcm->pclk; + else + clk = pcm->cclk; + + /* Set the SCLK divider */ + sclk_div = clk_get_rate(clk) / pcm->sclk_per_fs / + params_rate(params) / 2 - 1; + + clkctl &= ~(S3C_PCM_CLKCTL_SCLKDIV_MASK + << S3C_PCM_CLKCTL_SCLKDIV_SHIFT); + clkctl |= ((sclk_div & S3C_PCM_CLKCTL_SCLKDIV_MASK) + << S3C_PCM_CLKCTL_SCLKDIV_SHIFT); + + /* Set the SYNC divider */ + sync_div = pcm->sclk_per_fs - 1; + + clkctl &= ~(S3C_PCM_CLKCTL_SYNCDIV_MASK + << S3C_PCM_CLKCTL_SYNCDIV_SHIFT); + clkctl |= ((sync_div & S3C_PCM_CLKCTL_SYNCDIV_MASK) + << S3C_PCM_CLKCTL_SYNCDIV_SHIFT); + + writel(clkctl, regs + S3C_PCM_CLKCTL); + + spin_unlock_irqrestore(&pcm->lock, flags); + + dev_dbg(pcm->dev, "PCMSOURCE_CLK-%lu SCLK=%ufs SCLK_DIV=%d SYNC_DIV=%d\n", + clk_get_rate(clk), pcm->sclk_per_fs, + sclk_div, sync_div); + + return 0; +} + +static int s3c_pcm_set_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); + void __iomem *regs = pcm->regs; + unsigned long flags; + int ret = 0; + u32 ctl; + + dev_dbg(pcm->dev, "Entered %s\n", __func__); + + spin_lock_irqsave(&pcm->lock, flags); + + ctl = readl(regs + S3C_PCM_CTL); + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + /* Nothing to do, NB_NF by default */ + break; + default: + dev_err(pcm->dev, "Unsupported clock inversion!\n"); + ret = -EINVAL; + goto exit; + } + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + /* Nothing to do, Master by default */ + break; + default: + dev_err(pcm->dev, "Unsupported master/slave format!\n"); + ret = -EINVAL; + goto exit; + } + + switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) { + case SND_SOC_DAIFMT_CONT: + pcm->idleclk = 1; + break; + case SND_SOC_DAIFMT_GATED: + pcm->idleclk = 0; + break; + default: + dev_err(pcm->dev, "Invalid Clock gating request!\n"); + ret = -EINVAL; + goto exit; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + ctl |= S3C_PCM_CTL_TXMSB_AFTER_FSYNC; + ctl |= S3C_PCM_CTL_RXMSB_AFTER_FSYNC; + break; + case SND_SOC_DAIFMT_DSP_B: + ctl &= ~S3C_PCM_CTL_TXMSB_AFTER_FSYNC; + ctl &= ~S3C_PCM_CTL_RXMSB_AFTER_FSYNC; + break; + default: + dev_err(pcm->dev, "Unsupported data format!\n"); + ret = -EINVAL; + goto exit; + } + + writel(ctl, regs + S3C_PCM_CTL); + +exit: + spin_unlock_irqrestore(&pcm->lock, flags); + + return ret; +} + +static int s3c_pcm_set_clkdiv(struct snd_soc_dai *cpu_dai, + int div_id, int div) +{ + struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); + + switch (div_id) { + case S3C_PCM_SCLK_PER_FS: + pcm->sclk_per_fs = div; + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int s3c_pcm_set_sysclk(struct snd_soc_dai *cpu_dai, + int clk_id, unsigned int freq, int dir) +{ + struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); + void __iomem *regs = pcm->regs; + u32 clkctl = readl(regs + S3C_PCM_CLKCTL); + + switch (clk_id) { + case S3C_PCM_CLKSRC_PCLK: + clkctl |= S3C_PCM_CLKCTL_SERCLKSEL_PCLK; + break; + + case S3C_PCM_CLKSRC_MUX: + clkctl &= ~S3C_PCM_CLKCTL_SERCLKSEL_PCLK; + + if (clk_get_rate(pcm->cclk) != freq) + clk_set_rate(pcm->cclk, freq); + + break; + + default: + return -EINVAL; + } + + writel(clkctl, regs + S3C_PCM_CLKCTL); + + return 0; +} + +static struct snd_soc_dai_ops s3c_pcm_dai_ops = { + .set_sysclk = s3c_pcm_set_sysclk, + .set_clkdiv = s3c_pcm_set_clkdiv, + .trigger = s3c_pcm_trigger, + .hw_params = s3c_pcm_hw_params, + .set_fmt = s3c_pcm_set_fmt, +}; + +#define S3C_PCM_RATES SNDRV_PCM_RATE_8000_96000 + +#define S3C_PCM_DAI_DECLARE \ + .symmetric_rates = 1, \ + .ops = &s3c_pcm_dai_ops, \ + .playback = { \ + .channels_min = 2, \ + .channels_max = 2, \ + .rates = S3C_PCM_RATES, \ + .formats = SNDRV_PCM_FMTBIT_S16_LE, \ + }, \ + .capture = { \ + .channels_min = 2, \ + .channels_max = 2, \ + .rates = S3C_PCM_RATES, \ + .formats = SNDRV_PCM_FMTBIT_S16_LE, \ + } + +struct snd_soc_dai_driver s3c_pcm_dai[] = { + [0] = { + .name = "samsung-pcm.0", + S3C_PCM_DAI_DECLARE, + }, + [1] = { + .name = "samsung-pcm.1", + S3C_PCM_DAI_DECLARE, + }, +}; +EXPORT_SYMBOL_GPL(s3c_pcm_dai); + +static __devinit int s3c_pcm_dev_probe(struct platform_device *pdev) +{ + struct s3c_pcm_info *pcm; + struct resource *mem_res, *dmatx_res, *dmarx_res; + struct s3c_audio_pdata *pcm_pdata; + int ret; + + /* Check for valid device index */ + if ((pdev->id < 0) || pdev->id >= ARRAY_SIZE(s3c_pcm)) { + dev_err(&pdev->dev, "id %d out of range\n", pdev->id); + return -EINVAL; + } + + pcm_pdata = pdev->dev.platform_data; + + /* Check for availability of necessary resource */ + dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!dmatx_res) { + dev_err(&pdev->dev, "Unable to get PCM-TX dma resource\n"); + return -ENXIO; + } + + dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!dmarx_res) { + dev_err(&pdev->dev, "Unable to get PCM-RX dma resource\n"); + return -ENXIO; + } + + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem_res) { + dev_err(&pdev->dev, "Unable to get register resource\n"); + return -ENXIO; + } + + if (pcm_pdata && pcm_pdata->cfg_gpio && pcm_pdata->cfg_gpio(pdev)) { + dev_err(&pdev->dev, "Unable to configure gpio\n"); + return -EINVAL; + } + + pcm = &s3c_pcm[pdev->id]; + pcm->dev = &pdev->dev; + + spin_lock_init(&pcm->lock); + + /* Default is 128fs */ + pcm->sclk_per_fs = 128; + + pcm->cclk = clk_get(&pdev->dev, "audio-bus"); + if (IS_ERR(pcm->cclk)) { + dev_err(&pdev->dev, "failed to get audio-bus\n"); + ret = PTR_ERR(pcm->cclk); + goto err1; + } + clk_enable(pcm->cclk); + + /* record our pcm structure for later use in the callbacks */ + dev_set_drvdata(&pdev->dev, pcm); + + if (!request_mem_region(mem_res->start, + resource_size(mem_res), "samsung-pcm")) { + dev_err(&pdev->dev, "Unable to request register region\n"); + ret = -EBUSY; + goto err2; + } + + pcm->regs = ioremap(mem_res->start, 0x100); + if (pcm->regs == NULL) { + dev_err(&pdev->dev, "cannot ioremap registers\n"); + ret = -ENXIO; + goto err3; + } + + pcm->pclk = clk_get(&pdev->dev, "pcm"); + if (IS_ERR(pcm->pclk)) { + dev_err(&pdev->dev, "failed to get pcm_clock\n"); + ret = -ENOENT; + goto err4; + } + clk_enable(pcm->pclk); + + ret = snd_soc_register_dai(&pdev->dev, &s3c_pcm_dai[pdev->id]); + if (ret != 0) { + dev_err(&pdev->dev, "failed to get pcm_clock\n"); + goto err5; + } + + s3c_pcm_stereo_in[pdev->id].dma_addr = mem_res->start + + S3C_PCM_RXFIFO; + s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start + + S3C_PCM_TXFIFO; + + s3c_pcm_stereo_in[pdev->id].channel = dmarx_res->start; + s3c_pcm_stereo_out[pdev->id].channel = dmatx_res->start; + + pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id]; + pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id]; + + return 0; + +err5: + clk_disable(pcm->pclk); + clk_put(pcm->pclk); +err4: + iounmap(pcm->regs); +err3: + release_mem_region(mem_res->start, resource_size(mem_res)); +err2: + clk_disable(pcm->cclk); + clk_put(pcm->cclk); +err1: + return ret; +} + +static __devexit int s3c_pcm_dev_remove(struct platform_device *pdev) +{ + struct s3c_pcm_info *pcm = &s3c_pcm[pdev->id]; + struct resource *mem_res; + + snd_soc_unregister_dai(&pdev->dev); + + iounmap(pcm->regs); + + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mem_res->start, resource_size(mem_res)); + + clk_disable(pcm->cclk); + clk_disable(pcm->pclk); + clk_put(pcm->pclk); + clk_put(pcm->cclk); + + return 0; +} + +static struct platform_driver s3c_pcm_driver = { + .probe = s3c_pcm_dev_probe, + .remove = s3c_pcm_dev_remove, + .driver = { + .name = "samsung-pcm", + .owner = THIS_MODULE, + }, +}; + +static int __init s3c_pcm_init(void) +{ + return platform_driver_register(&s3c_pcm_driver); +} +module_init(s3c_pcm_init); + +static void __exit s3c_pcm_exit(void) +{ + platform_driver_unregister(&s3c_pcm_driver); +} +module_exit(s3c_pcm_exit); + +/* Module information */ +MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com"); +MODULE_DESCRIPTION("S3C PCM Controller Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:samsung-pcm"); diff --git a/sound/soc/s3c24xx/pcm.h b/sound/soc/s3c24xx/pcm.h new file mode 100644 index 0000000..3775216 --- /dev/null +++ b/sound/soc/s3c24xx/pcm.h @@ -0,0 +1,124 @@ +/* sound/soc/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 version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __S3C_PCM_H +#define __S3C_PCM_H __FILE__ + +/*Register Offsets */ +#define S3C_PCM_CTL (0x00) +#define S3C_PCM_CLKCTL (0x04) +#define S3C_PCM_TXFIFO (0x08) +#define S3C_PCM_RXFIFO (0x0C) +#define S3C_PCM_IRQCTL (0x10) +#define S3C_PCM_IRQSTAT (0x14) +#define S3C_PCM_FIFOSTAT (0x18) +#define S3C_PCM_CLRINT (0x20) + +/* PCM_CTL Bit-Fields */ +#define S3C_PCM_CTL_TXDIPSTICK_MASK (0x3f) +#define S3C_PCM_CTL_TXDIPSTICK_SHIFT (13) +#define S3C_PCM_CTL_RXDIPSTICK_MASK (0x3f) +#define S3C_PCM_CTL_RXDIPSTICK_SHIFT (7) +#define S3C_PCM_CTL_TXDMA_EN (0x1<<6) +#define S3C_PCM_CTL_RXDMA_EN (0x1<<5) +#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1<<4) +#define S3C_PCM_CTL_RXMSB_AFTER_FSYNC (0x1<<3) +#define S3C_PCM_CTL_TXFIFO_EN (0x1<<2) +#define S3C_PCM_CTL_RXFIFO_EN (0x1<<1) +#define S3C_PCM_CTL_ENABLE (0x1<<0) + +/* PCM_CLKCTL Bit-Fields */ +#define S3C_PCM_CLKCTL_SERCLK_EN (0x1<<19) +#define S3C_PCM_CLKCTL_SERCLKSEL_PCLK (0x1<<18) +#define S3C_PCM_CLKCTL_SCLKDIV_MASK (0x1ff) +#define S3C_PCM_CLKCTL_SYNCDIV_MASK (0x1ff) +#define S3C_PCM_CLKCTL_SCLKDIV_SHIFT (9) +#define S3C_PCM_CLKCTL_SYNCDIV_SHIFT (0) + +/* PCM_TXFIFO Bit-Fields */ +#define S3C_PCM_TXFIFO_DVALID (0x1<<16) +#define S3C_PCM_TXFIFO_DATA_MSK (0xffff<<0) + +/* PCM_RXFIFO Bit-Fields */ +#define S3C_PCM_RXFIFO_DVALID (0x1<<16) +#define S3C_PCM_RXFIFO_DATA_MSK (0xffff<<0) + +/* PCM_IRQCTL Bit-Fields */ +#define S3C_PCM_IRQCTL_IRQEN (0x1<<14) +#define S3C_PCM_IRQCTL_WRDEN (0x1<<12) +#define S3C_PCM_IRQCTL_TXEMPTYEN (0x1<<11) +#define S3C_PCM_IRQCTL_TXALMSTEMPTYEN (0x1<<10) +#define S3C_PCM_IRQCTL_TXFULLEN (0x1<<9) +#define S3C_PCM_IRQCTL_TXALMSTFULLEN (0x1<<8) +#define S3C_PCM_IRQCTL_TXSTARVEN (0x1<<7) +#define S3C_PCM_IRQCTL_TXERROVRFLEN (0x1<<6) +#define S3C_PCM_IRQCTL_RXEMPTEN (0x1<<5) +#define S3C_PCM_IRQCTL_RXALMSTEMPTEN (0x1<<4) +#define S3C_PCM_IRQCTL_RXFULLEN (0x1<<3) +#define S3C_PCM_IRQCTL_RXALMSTFULLEN (0x1<<2) +#define S3C_PCM_IRQCTL_RXSTARVEN (0x1<<1) +#define S3C_PCM_IRQCTL_RXERROVRFLEN (0x1<<0) + +/* PCM_IRQSTAT Bit-Fields */ +#define S3C_PCM_IRQSTAT_IRQPND (0x1<<13) +#define S3C_PCM_IRQSTAT_WRD_XFER (0x1<<12) +#define S3C_PCM_IRQSTAT_TXEMPTY (0x1<<11) +#define S3C_PCM_IRQSTAT_TXALMSTEMPTY (0x1<<10) +#define S3C_PCM_IRQSTAT_TXFULL (0x1<<9) +#define S3C_PCM_IRQSTAT_TXALMSTFULL (0x1<<8) +#define S3C_PCM_IRQSTAT_TXSTARV (0x1<<7) +#define S3C_PCM_IRQSTAT_TXERROVRFL (0x1<<6) +#define S3C_PCM_IRQSTAT_RXEMPT (0x1<<5) +#define S3C_PCM_IRQSTAT_RXALMSTEMPT (0x1<<4) +#define S3C_PCM_IRQSTAT_RXFULL (0x1<<3) +#define S3C_PCM_IRQSTAT_RXALMSTFULL (0x1<<2) +#define S3C_PCM_IRQSTAT_RXSTARV (0x1<<1) +#define S3C_PCM_IRQSTAT_RXERROVRFL (0x1<<0) + +/* PCM_FIFOSTAT Bit-Fields */ +#define S3C_PCM_FIFOSTAT_TXCNT_MSK (0x3f<<14) +#define S3C_PCM_FIFOSTAT_TXFIFOEMPTY (0x1<<13) +#define S3C_PCM_FIFOSTAT_TXFIFOALMSTEMPTY (0x1<<12) +#define S3C_PCM_FIFOSTAT_TXFIFOFULL (0x1<<11) +#define S3C_PCM_FIFOSTAT_TXFIFOALMSTFULL (0x1<<10) +#define S3C_PCM_FIFOSTAT_RXCNT_MSK (0x3f<<4) +#define S3C_PCM_FIFOSTAT_RXFIFOEMPTY (0x1<<3) +#define S3C_PCM_FIFOSTAT_RXFIFOALMSTEMPTY (0x1<<2) +#define S3C_PCM_FIFOSTAT_RXFIFOFULL (0x1<<1) +#define S3C_PCM_FIFOSTAT_RXFIFOALMSTFULL (0x1<<0) + +#define S3C_PCM_CLKSRC_PCLK 0 +#define S3C_PCM_CLKSRC_MUX 1 + +#define S3C_PCM_SCLK_PER_FS 0 + +/** + * struct s3c_pcm_info - S3C PCM Controller information + * @dev: The parent device passed to use from the probe. + * @regs: The pointer to the device register block. + * @dma_playback: DMA information for playback channel. + * @dma_capture: DMA information for capture channel. + */ +struct s3c_pcm_info { + spinlock_t lock; + struct device *dev; + void __iomem *regs; + + unsigned int sclk_per_fs; + + /* Whether to keep PCMSCLK enabled even when idle(no active xfer) */ + unsigned int idleclk; + + struct clk *pclk; + struct clk *cclk; + + struct s3c_dma_params *dma_playback; + struct s3c_dma_params *dma_capture; +}; + +#endif /* __S3C_PCM_H */ diff --git a/sound/soc/s3c24xx/s3c-pcm.c b/sound/soc/s3c24xx/s3c-pcm.c deleted file mode 100644 index e111d23..0000000 --- a/sound/soc/s3c24xx/s3c-pcm.c +++ /dev/null @@ -1,552 +0,0 @@ -/* sound/soc/s3c24xx/s3c-pcm.c - * - * ALSA SoC Audio Layer - S3C PCM-Controller driver - * - * Copyright (c) 2009 Samsung Electronics Co. Ltd - * Author: Jaswinder Singh jassi.brar@samsung.com - * based upon I2S drivers by Ben Dooks. - * - * 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. - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/delay.h> -#include <linux/clk.h> -#include <linux/kernel.h> -#include <linux/gpio.h> -#include <linux/io.h> - -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/initval.h> -#include <sound/soc.h> - -#include <plat/audio.h> -#include <plat/dma.h> - -#include "dma.h" -#include "s3c-pcm.h" - -static struct s3c2410_dma_client s3c_pcm_dma_client_out = { - .name = "PCM Stereo out" -}; - -static struct s3c2410_dma_client s3c_pcm_dma_client_in = { - .name = "PCM Stereo in" -}; - -static struct s3c_dma_params s3c_pcm_stereo_out[] = { - [0] = { - .client = &s3c_pcm_dma_client_out, - .dma_size = 4, - }, - [1] = { - .client = &s3c_pcm_dma_client_out, - .dma_size = 4, - }, -}; - -static struct s3c_dma_params s3c_pcm_stereo_in[] = { - [0] = { - .client = &s3c_pcm_dma_client_in, - .dma_size = 4, - }, - [1] = { - .client = &s3c_pcm_dma_client_in, - .dma_size = 4, - }, -}; - -static struct s3c_pcm_info s3c_pcm[2]; - -static void s3c_pcm_snd_txctrl(struct s3c_pcm_info *pcm, int on) -{ - void __iomem *regs = pcm->regs; - u32 ctl, clkctl; - - clkctl = readl(regs + S3C_PCM_CLKCTL); - ctl = readl(regs + S3C_PCM_CTL); - ctl &= ~(S3C_PCM_CTL_TXDIPSTICK_MASK - << S3C_PCM_CTL_TXDIPSTICK_SHIFT); - - if (on) { - ctl |= S3C_PCM_CTL_TXDMA_EN; - ctl |= S3C_PCM_CTL_TXFIFO_EN; - ctl |= S3C_PCM_CTL_ENABLE; - ctl |= (0x4<<S3C_PCM_CTL_TXDIPSTICK_SHIFT); - clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; - } else { - ctl &= ~S3C_PCM_CTL_TXDMA_EN; - ctl &= ~S3C_PCM_CTL_TXFIFO_EN; - - if (!(ctl & S3C_PCM_CTL_RXFIFO_EN)) { - ctl &= ~S3C_PCM_CTL_ENABLE; - if (!pcm->idleclk) - clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; - } - } - - writel(clkctl, regs + S3C_PCM_CLKCTL); - writel(ctl, regs + S3C_PCM_CTL); -} - -static void s3c_pcm_snd_rxctrl(struct s3c_pcm_info *pcm, int on) -{ - void __iomem *regs = pcm->regs; - u32 ctl, clkctl; - - ctl = readl(regs + S3C_PCM_CTL); - clkctl = readl(regs + S3C_PCM_CLKCTL); - ctl &= ~(S3C_PCM_CTL_RXDIPSTICK_MASK - << S3C_PCM_CTL_RXDIPSTICK_SHIFT); - - if (on) { - ctl |= S3C_PCM_CTL_RXDMA_EN; - ctl |= S3C_PCM_CTL_RXFIFO_EN; - ctl |= S3C_PCM_CTL_ENABLE; - ctl |= (0x20<<S3C_PCM_CTL_RXDIPSTICK_SHIFT); - clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; - } else { - ctl &= ~S3C_PCM_CTL_RXDMA_EN; - ctl &= ~S3C_PCM_CTL_RXFIFO_EN; - - if (!(ctl & S3C_PCM_CTL_TXFIFO_EN)) { - ctl &= ~S3C_PCM_CTL_ENABLE; - if (!pcm->idleclk) - clkctl |= S3C_PCM_CLKCTL_SERCLK_EN; - } - } - - writel(clkctl, regs + S3C_PCM_CLKCTL); - writel(ctl, regs + S3C_PCM_CTL); -} - -static int s3c_pcm_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai); - unsigned long flags; - - dev_dbg(pcm->dev, "Entered %s\n", __func__); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - spin_lock_irqsave(&pcm->lock, flags); - - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) - s3c_pcm_snd_rxctrl(pcm, 1); - else - s3c_pcm_snd_txctrl(pcm, 1); - - spin_unlock_irqrestore(&pcm->lock, flags); - break; - - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - spin_lock_irqsave(&pcm->lock, flags); - - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) - s3c_pcm_snd_rxctrl(pcm, 0); - else - s3c_pcm_snd_txctrl(pcm, 0); - - spin_unlock_irqrestore(&pcm->lock, flags); - break; - - default: - return -EINVAL; - } - - return 0; -} - -static int s3c_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *socdai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai); - struct s3c_dma_params *dma_data; - void __iomem *regs = pcm->regs; - struct clk *clk; - int sclk_div, sync_div; - unsigned long flags; - u32 clkctl; - - dev_dbg(pcm->dev, "Entered %s\n", __func__); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - dma_data = pcm->dma_playback; - else - dma_data = pcm->dma_capture; - - snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data); - - /* Strictly check for sample size */ - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - break; - default: - return -EINVAL; - } - - spin_lock_irqsave(&pcm->lock, flags); - - /* Get hold of the PCMSOURCE_CLK */ - clkctl = readl(regs + S3C_PCM_CLKCTL); - if (clkctl & S3C_PCM_CLKCTL_SERCLKSEL_PCLK) - clk = pcm->pclk; - else - clk = pcm->cclk; - - /* Set the SCLK divider */ - sclk_div = clk_get_rate(clk) / pcm->sclk_per_fs / - params_rate(params) / 2 - 1; - - clkctl &= ~(S3C_PCM_CLKCTL_SCLKDIV_MASK - << S3C_PCM_CLKCTL_SCLKDIV_SHIFT); - clkctl |= ((sclk_div & S3C_PCM_CLKCTL_SCLKDIV_MASK) - << S3C_PCM_CLKCTL_SCLKDIV_SHIFT); - - /* Set the SYNC divider */ - sync_div = pcm->sclk_per_fs - 1; - - clkctl &= ~(S3C_PCM_CLKCTL_SYNCDIV_MASK - << S3C_PCM_CLKCTL_SYNCDIV_SHIFT); - clkctl |= ((sync_div & S3C_PCM_CLKCTL_SYNCDIV_MASK) - << S3C_PCM_CLKCTL_SYNCDIV_SHIFT); - - writel(clkctl, regs + S3C_PCM_CLKCTL); - - spin_unlock_irqrestore(&pcm->lock, flags); - - dev_dbg(pcm->dev, "PCMSOURCE_CLK-%lu SCLK=%ufs SCLK_DIV=%d SYNC_DIV=%d\n", - clk_get_rate(clk), pcm->sclk_per_fs, - sclk_div, sync_div); - - return 0; -} - -static int s3c_pcm_set_fmt(struct snd_soc_dai *cpu_dai, - unsigned int fmt) -{ - struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); - void __iomem *regs = pcm->regs; - unsigned long flags; - int ret = 0; - u32 ctl; - - dev_dbg(pcm->dev, "Entered %s\n", __func__); - - spin_lock_irqsave(&pcm->lock, flags); - - ctl = readl(regs + S3C_PCM_CTL); - - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - /* Nothing to do, NB_NF by default */ - break; - default: - dev_err(pcm->dev, "Unsupported clock inversion!\n"); - ret = -EINVAL; - goto exit; - } - - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBS_CFS: - /* Nothing to do, Master by default */ - break; - default: - dev_err(pcm->dev, "Unsupported master/slave format!\n"); - ret = -EINVAL; - goto exit; - } - - switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) { - case SND_SOC_DAIFMT_CONT: - pcm->idleclk = 1; - break; - case SND_SOC_DAIFMT_GATED: - pcm->idleclk = 0; - break; - default: - dev_err(pcm->dev, "Invalid Clock gating request!\n"); - ret = -EINVAL; - goto exit; - } - - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_DSP_A: - ctl |= S3C_PCM_CTL_TXMSB_AFTER_FSYNC; - ctl |= S3C_PCM_CTL_RXMSB_AFTER_FSYNC; - break; - case SND_SOC_DAIFMT_DSP_B: - ctl &= ~S3C_PCM_CTL_TXMSB_AFTER_FSYNC; - ctl &= ~S3C_PCM_CTL_RXMSB_AFTER_FSYNC; - break; - default: - dev_err(pcm->dev, "Unsupported data format!\n"); - ret = -EINVAL; - goto exit; - } - - writel(ctl, regs + S3C_PCM_CTL); - -exit: - spin_unlock_irqrestore(&pcm->lock, flags); - - return ret; -} - -static int s3c_pcm_set_clkdiv(struct snd_soc_dai *cpu_dai, - int div_id, int div) -{ - struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); - - switch (div_id) { - case S3C_PCM_SCLK_PER_FS: - pcm->sclk_per_fs = div; - break; - - default: - return -EINVAL; - } - - return 0; -} - -static int s3c_pcm_set_sysclk(struct snd_soc_dai *cpu_dai, - int clk_id, unsigned int freq, int dir) -{ - struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(cpu_dai); - void __iomem *regs = pcm->regs; - u32 clkctl = readl(regs + S3C_PCM_CLKCTL); - - switch (clk_id) { - case S3C_PCM_CLKSRC_PCLK: - clkctl |= S3C_PCM_CLKCTL_SERCLKSEL_PCLK; - break; - - case S3C_PCM_CLKSRC_MUX: - clkctl &= ~S3C_PCM_CLKCTL_SERCLKSEL_PCLK; - - if (clk_get_rate(pcm->cclk) != freq) - clk_set_rate(pcm->cclk, freq); - - break; - - default: - return -EINVAL; - } - - writel(clkctl, regs + S3C_PCM_CLKCTL); - - return 0; -} - -static struct snd_soc_dai_ops s3c_pcm_dai_ops = { - .set_sysclk = s3c_pcm_set_sysclk, - .set_clkdiv = s3c_pcm_set_clkdiv, - .trigger = s3c_pcm_trigger, - .hw_params = s3c_pcm_hw_params, - .set_fmt = s3c_pcm_set_fmt, -}; - -#define S3C_PCM_RATES SNDRV_PCM_RATE_8000_96000 - -#define S3C_PCM_DAI_DECLARE \ - .symmetric_rates = 1, \ - .ops = &s3c_pcm_dai_ops, \ - .playback = { \ - .channels_min = 2, \ - .channels_max = 2, \ - .rates = S3C_PCM_RATES, \ - .formats = SNDRV_PCM_FMTBIT_S16_LE, \ - }, \ - .capture = { \ - .channels_min = 2, \ - .channels_max = 2, \ - .rates = S3C_PCM_RATES, \ - .formats = SNDRV_PCM_FMTBIT_S16_LE, \ - } - -struct snd_soc_dai_driver s3c_pcm_dai[] = { - [0] = { - .name = "samsung-pcm.0", - S3C_PCM_DAI_DECLARE, - }, - [1] = { - .name = "samsung-pcm.1", - S3C_PCM_DAI_DECLARE, - }, -}; -EXPORT_SYMBOL_GPL(s3c_pcm_dai); - -static __devinit int s3c_pcm_dev_probe(struct platform_device *pdev) -{ - struct s3c_pcm_info *pcm; - struct resource *mem_res, *dmatx_res, *dmarx_res; - struct s3c_audio_pdata *pcm_pdata; - int ret; - - /* Check for valid device index */ - if ((pdev->id < 0) || pdev->id >= ARRAY_SIZE(s3c_pcm)) { - dev_err(&pdev->dev, "id %d out of range\n", pdev->id); - return -EINVAL; - } - - pcm_pdata = pdev->dev.platform_data; - - /* Check for availability of necessary resource */ - dmatx_res = platform_get_resource(pdev, IORESOURCE_DMA, 0); - if (!dmatx_res) { - dev_err(&pdev->dev, "Unable to get PCM-TX dma resource\n"); - return -ENXIO; - } - - dmarx_res = platform_get_resource(pdev, IORESOURCE_DMA, 1); - if (!dmarx_res) { - dev_err(&pdev->dev, "Unable to get PCM-RX dma resource\n"); - return -ENXIO; - } - - mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem_res) { - dev_err(&pdev->dev, "Unable to get register resource\n"); - return -ENXIO; - } - - if (pcm_pdata && pcm_pdata->cfg_gpio && pcm_pdata->cfg_gpio(pdev)) { - dev_err(&pdev->dev, "Unable to configure gpio\n"); - return -EINVAL; - } - - pcm = &s3c_pcm[pdev->id]; - pcm->dev = &pdev->dev; - - spin_lock_init(&pcm->lock); - - /* Default is 128fs */ - pcm->sclk_per_fs = 128; - - pcm->cclk = clk_get(&pdev->dev, "audio-bus"); - if (IS_ERR(pcm->cclk)) { - dev_err(&pdev->dev, "failed to get audio-bus\n"); - ret = PTR_ERR(pcm->cclk); - goto err1; - } - clk_enable(pcm->cclk); - - /* record our pcm structure for later use in the callbacks */ - dev_set_drvdata(&pdev->dev, pcm); - - if (!request_mem_region(mem_res->start, - resource_size(mem_res), "samsung-pcm")) { - dev_err(&pdev->dev, "Unable to request register region\n"); - ret = -EBUSY; - goto err2; - } - - pcm->regs = ioremap(mem_res->start, 0x100); - if (pcm->regs == NULL) { - dev_err(&pdev->dev, "cannot ioremap registers\n"); - ret = -ENXIO; - goto err3; - } - - pcm->pclk = clk_get(&pdev->dev, "pcm"); - if (IS_ERR(pcm->pclk)) { - dev_err(&pdev->dev, "failed to get pcm_clock\n"); - ret = -ENOENT; - goto err4; - } - clk_enable(pcm->pclk); - - ret = snd_soc_register_dai(&pdev->dev, &s3c_pcm_dai[pdev->id]); - if (ret != 0) { - dev_err(&pdev->dev, "failed to get pcm_clock\n"); - goto err5; - } - - s3c_pcm_stereo_in[pdev->id].dma_addr = mem_res->start - + S3C_PCM_RXFIFO; - s3c_pcm_stereo_out[pdev->id].dma_addr = mem_res->start - + S3C_PCM_TXFIFO; - - s3c_pcm_stereo_in[pdev->id].channel = dmarx_res->start; - s3c_pcm_stereo_out[pdev->id].channel = dmatx_res->start; - - pcm->dma_capture = &s3c_pcm_stereo_in[pdev->id]; - pcm->dma_playback = &s3c_pcm_stereo_out[pdev->id]; - - return 0; - -err5: - clk_disable(pcm->pclk); - clk_put(pcm->pclk); -err4: - iounmap(pcm->regs); -err3: - release_mem_region(mem_res->start, resource_size(mem_res)); -err2: - clk_disable(pcm->cclk); - clk_put(pcm->cclk); -err1: - return ret; -} - -static __devexit int s3c_pcm_dev_remove(struct platform_device *pdev) -{ - struct s3c_pcm_info *pcm = &s3c_pcm[pdev->id]; - struct resource *mem_res; - - snd_soc_unregister_dai(&pdev->dev); - - iounmap(pcm->regs); - - mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(mem_res->start, resource_size(mem_res)); - - clk_disable(pcm->cclk); - clk_disable(pcm->pclk); - clk_put(pcm->pclk); - clk_put(pcm->cclk); - - return 0; -} - -static struct platform_driver s3c_pcm_driver = { - .probe = s3c_pcm_dev_probe, - .remove = s3c_pcm_dev_remove, - .driver = { - .name = "samsung-pcm", - .owner = THIS_MODULE, - }, -}; - -static int __init s3c_pcm_init(void) -{ - return platform_driver_register(&s3c_pcm_driver); -} -module_init(s3c_pcm_init); - -static void __exit s3c_pcm_exit(void) -{ - platform_driver_unregister(&s3c_pcm_driver); -} -module_exit(s3c_pcm_exit); - -/* Module information */ -MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com"); -MODULE_DESCRIPTION("S3C PCM Controller Driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:samsung-pcm"); diff --git a/sound/soc/s3c24xx/s3c-pcm.h b/sound/soc/s3c24xx/s3c-pcm.h deleted file mode 100644 index f60baa1..0000000 --- a/sound/soc/s3c24xx/s3c-pcm.h +++ /dev/null @@ -1,124 +0,0 @@ -/* sound/soc/s3c24xx/s3c-pcm.h - * - * 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. - * - */ - -#ifndef __S3C_PCM_H -#define __S3C_PCM_H __FILE__ - -/*Register Offsets */ -#define S3C_PCM_CTL (0x00) -#define S3C_PCM_CLKCTL (0x04) -#define S3C_PCM_TXFIFO (0x08) -#define S3C_PCM_RXFIFO (0x0C) -#define S3C_PCM_IRQCTL (0x10) -#define S3C_PCM_IRQSTAT (0x14) -#define S3C_PCM_FIFOSTAT (0x18) -#define S3C_PCM_CLRINT (0x20) - -/* PCM_CTL Bit-Fields */ -#define S3C_PCM_CTL_TXDIPSTICK_MASK (0x3f) -#define S3C_PCM_CTL_TXDIPSTICK_SHIFT (13) -#define S3C_PCM_CTL_RXDIPSTICK_MASK (0x3f) -#define S3C_PCM_CTL_RXDIPSTICK_SHIFT (7) -#define S3C_PCM_CTL_TXDMA_EN (0x1<<6) -#define S3C_PCM_CTL_RXDMA_EN (0x1<<5) -#define S3C_PCM_CTL_TXMSB_AFTER_FSYNC (0x1<<4) -#define S3C_PCM_CTL_RXMSB_AFTER_FSYNC (0x1<<3) -#define S3C_PCM_CTL_TXFIFO_EN (0x1<<2) -#define S3C_PCM_CTL_RXFIFO_EN (0x1<<1) -#define S3C_PCM_CTL_ENABLE (0x1<<0) - -/* PCM_CLKCTL Bit-Fields */ -#define S3C_PCM_CLKCTL_SERCLK_EN (0x1<<19) -#define S3C_PCM_CLKCTL_SERCLKSEL_PCLK (0x1<<18) -#define S3C_PCM_CLKCTL_SCLKDIV_MASK (0x1ff) -#define S3C_PCM_CLKCTL_SYNCDIV_MASK (0x1ff) -#define S3C_PCM_CLKCTL_SCLKDIV_SHIFT (9) -#define S3C_PCM_CLKCTL_SYNCDIV_SHIFT (0) - -/* PCM_TXFIFO Bit-Fields */ -#define S3C_PCM_TXFIFO_DVALID (0x1<<16) -#define S3C_PCM_TXFIFO_DATA_MSK (0xffff<<0) - -/* PCM_RXFIFO Bit-Fields */ -#define S3C_PCM_RXFIFO_DVALID (0x1<<16) -#define S3C_PCM_RXFIFO_DATA_MSK (0xffff<<0) - -/* PCM_IRQCTL Bit-Fields */ -#define S3C_PCM_IRQCTL_IRQEN (0x1<<14) -#define S3C_PCM_IRQCTL_WRDEN (0x1<<12) -#define S3C_PCM_IRQCTL_TXEMPTYEN (0x1<<11) -#define S3C_PCM_IRQCTL_TXALMSTEMPTYEN (0x1<<10) -#define S3C_PCM_IRQCTL_TXFULLEN (0x1<<9) -#define S3C_PCM_IRQCTL_TXALMSTFULLEN (0x1<<8) -#define S3C_PCM_IRQCTL_TXSTARVEN (0x1<<7) -#define S3C_PCM_IRQCTL_TXERROVRFLEN (0x1<<6) -#define S3C_PCM_IRQCTL_RXEMPTEN (0x1<<5) -#define S3C_PCM_IRQCTL_RXALMSTEMPTEN (0x1<<4) -#define S3C_PCM_IRQCTL_RXFULLEN (0x1<<3) -#define S3C_PCM_IRQCTL_RXALMSTFULLEN (0x1<<2) -#define S3C_PCM_IRQCTL_RXSTARVEN (0x1<<1) -#define S3C_PCM_IRQCTL_RXERROVRFLEN (0x1<<0) - -/* PCM_IRQSTAT Bit-Fields */ -#define S3C_PCM_IRQSTAT_IRQPND (0x1<<13) -#define S3C_PCM_IRQSTAT_WRD_XFER (0x1<<12) -#define S3C_PCM_IRQSTAT_TXEMPTY (0x1<<11) -#define S3C_PCM_IRQSTAT_TXALMSTEMPTY (0x1<<10) -#define S3C_PCM_IRQSTAT_TXFULL (0x1<<9) -#define S3C_PCM_IRQSTAT_TXALMSTFULL (0x1<<8) -#define S3C_PCM_IRQSTAT_TXSTARV (0x1<<7) -#define S3C_PCM_IRQSTAT_TXERROVRFL (0x1<<6) -#define S3C_PCM_IRQSTAT_RXEMPT (0x1<<5) -#define S3C_PCM_IRQSTAT_RXALMSTEMPT (0x1<<4) -#define S3C_PCM_IRQSTAT_RXFULL (0x1<<3) -#define S3C_PCM_IRQSTAT_RXALMSTFULL (0x1<<2) -#define S3C_PCM_IRQSTAT_RXSTARV (0x1<<1) -#define S3C_PCM_IRQSTAT_RXERROVRFL (0x1<<0) - -/* PCM_FIFOSTAT Bit-Fields */ -#define S3C_PCM_FIFOSTAT_TXCNT_MSK (0x3f<<14) -#define S3C_PCM_FIFOSTAT_TXFIFOEMPTY (0x1<<13) -#define S3C_PCM_FIFOSTAT_TXFIFOALMSTEMPTY (0x1<<12) -#define S3C_PCM_FIFOSTAT_TXFIFOFULL (0x1<<11) -#define S3C_PCM_FIFOSTAT_TXFIFOALMSTFULL (0x1<<10) -#define S3C_PCM_FIFOSTAT_RXCNT_MSK (0x3f<<4) -#define S3C_PCM_FIFOSTAT_RXFIFOEMPTY (0x1<<3) -#define S3C_PCM_FIFOSTAT_RXFIFOALMSTEMPTY (0x1<<2) -#define S3C_PCM_FIFOSTAT_RXFIFOFULL (0x1<<1) -#define S3C_PCM_FIFOSTAT_RXFIFOALMSTFULL (0x1<<0) - -#define S3C_PCM_CLKSRC_PCLK 0 -#define S3C_PCM_CLKSRC_MUX 1 - -#define S3C_PCM_SCLK_PER_FS 0 - -/** - * struct s3c_pcm_info - S3C PCM Controller information - * @dev: The parent device passed to use from the probe. - * @regs: The pointer to the device register block. - * @dma_playback: DMA information for playback channel. - * @dma_capture: DMA information for capture channel. - */ -struct s3c_pcm_info { - spinlock_t lock; - struct device *dev; - void __iomem *regs; - - unsigned int sclk_per_fs; - - /* Whether to keep PCMSCLK enabled even when idle(no active xfer) */ - unsigned int idleclk; - - struct clk *pclk; - struct clk *cclk; - - struct s3c_dma_params *dma_playback; - struct s3c_dma_params *dma_capture; -}; - -#endif /* __S3C_PCM_H */