2011/7/9 Sascha Hauer s.hauer@pengutronix.de:
On Fri, Jul 08, 2011 at 11:59:42PM +0800, Dong Aisheng wrote:
Signed-off-by: Dong Aisheng b29396@freescale.com
sound/soc/mxs/mxs-saif.c | 524 ++++++++++++++++++++++++++++++++++++++++++++++ sound/soc/mxs/mxs-saif.h | 124 +++++++++++ 2 files changed, 648 insertions(+), 0 deletions(-)
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c new file mode 100644 index 0000000..afc6e57 --- /dev/null +++ b/sound/soc/mxs/mxs-saif.c @@ -0,0 +1,524 @@ +/*
- Copyright 2011 Freescale Semiconductor, Inc.
- 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.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
+#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/dma-mapping.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <mach/dma.h> +#include <asm/mach-types.h> +#include <mach/hardware.h> +#include <mach/mx28.h>
Is this include really needed?
Thanks a lot for your quick review. i checked and it's not needed. Including mxs.h would be ok for using MXS_CLR_ADDR.
+#include "mxs-saif.h"
+/* +* SAIF system clock configuration. +* Should only be called when port is inactive. +*/ +static int mxs_saif_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
- int clk_id, unsigned int freq, int dir)
+{
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- switch (clk_id) {
- case MXS_SAIF_SYS_CLK:
- clk_set_rate(saif->clk, freq);
- clk_enable(saif->clk);
This clk_enable is unbalanced. You enabled the clock in probe() already.
Yes, will fix it.
- break;
- default:
- return -EINVAL;
- }
- return 0;
+}
+/*
- SAIF Clock dividers
- Should only be called when port is inactive.
- */
+static int mxs_saif_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
- int div_id, int div)
+{
- u32 scr;
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- scr = __raw_readl(saif->base + SAIF_CTRL);
- scr &= ~BM_SAIF_CTRL_BITCLK_MULT_RATE;
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- switch (div_id) {
- case MXS_SAIF_MCLK:
- switch (div) {
- case 32:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(4);
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 64:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3);
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 128:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2);
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 256:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1);
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 512:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(0);
- scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 48:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3);
- scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 96:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2);
- scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 192:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1);
- scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- case 384:
- scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(0);
- scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE;
- break;
- default:
- return -EINVAL;
- }
- break;
- default:
- return -EINVAL;
- }
- __raw_writel(scr, saif->base + SAIF_CTRL);
- return 0;
+}
+/*
- SAIF DAI format configuration.
- Should only be called when port is inactive.
- Note: We don't use the I2S modes but instead manually configure the
- SAIF for I2S.
- */
+static int mxs_saif_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) +{
- u32 scr, stat;
- u32 scr0;
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- stat = __raw_readl(saif->base + SAIF_STAT);
- if (stat & BM_SAIF_STAT_BUSY)
- return 0;
Returning succesfully doesn't seem right here.
Will replace with -EBUSY.
- scr0 = __raw_readl(saif->base + SAIF_CTRL);
- scr0 = scr0 & ~BM_SAIF_CTRL_BITCLK_EDGE & ~BM_SAIF_CTRL_LRCLK_POLARITY \
- & ~BM_SAIF_CTRL_JUSTIFY & ~BM_SAIF_CTRL_DELAY;
- scr = 0;
- /* DAI mode */
- switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
- case SND_SOC_DAIFMT_I2S:
- /* data frame low 1clk before data */
- scr |= BM_SAIF_CTRL_DELAY;
- scr &= ~BM_SAIF_CTRL_LRCLK_POLARITY;
- break;
- case SND_SOC_DAIFMT_LEFT_J:
- /* data frame high with data */
- scr &= ~BM_SAIF_CTRL_DELAY;
- scr &= ~BM_SAIF_CTRL_LRCLK_POLARITY;
- scr &= ~BM_SAIF_CTRL_JUSTIFY;
- break;
default: return -EINVAL;
Will add.
- }
- /* DAI clock inversion */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_IB_IF:
- scr |= BM_SAIF_CTRL_BITCLK_EDGE;
- scr |= BM_SAIF_CTRL_LRCLK_POLARITY;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- scr |= BM_SAIF_CTRL_BITCLK_EDGE;
- scr &= ~BM_SAIF_CTRL_LRCLK_POLARITY;
- break;
- case SND_SOC_DAIFMT_NB_IF:
- scr &= ~BM_SAIF_CTRL_BITCLK_EDGE;
- scr |= BM_SAIF_CTRL_LRCLK_POLARITY;
- break;
- case SND_SOC_DAIFMT_NB_NF:
- scr &= ~BM_SAIF_CTRL_BITCLK_EDGE;
- scr &= ~BM_SAIF_CTRL_LRCLK_POLARITY;
- break;
- }
A question more for Liam and Mark: Would it make sense to add individual masks for the clock inversion and frame sync inversion? I code like the above in every driver, and I think this could become simpler.
- /*
- * Note: We simply just support master mode since SAIF TX only supports
- * master mode.
- */
When this is true...
It's hw limitation. Defined in MX28 spec 35.2.1. i quote it as follows; For transmit, BITCLK and LRCLK are always driven by the SAIF. ... Coniguring the SAIF for transmit makes it the master by default. ....
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
- scr &= ~BM_SAIF_CTRL_SLAVE_MODE;
- __raw_writel(scr | scr0, saif->base + SAIF_CTRL);
- break;
- case SND_SOC_DAIFMT_CBM_CFS:
- break;
- case SND_SOC_DAIFMT_CBS_CFM:
- break;
You should return an error here.
Will add.
- case SND_SOC_DAIFMT_CBM_CFM:
- return -EINVAL;
- break;
- }
- return 0;
+}
+static int mxs_saif_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *cpu_dai)
+{
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- snd_soc_dai_set_dma_data(cpu_dai, substream, &saif->dma_param);
- return 0;
+}
+/*
- Should only be called when port is inactive.
- although can be called multiple times by upper layers.
- */
+static int mxs_saif_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
+{
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- u32 scr;
- scr = __raw_readl(saif->base + SAIF_CTRL);
- /* cant change any parameters when SAIF is running */
- /* DAI data (word) size */
- scr &= ~BM_SAIF_CTRL_WORD_LENGTH;
- scr &= ~BM_SAIF_CTRL_BITCLK_48XFS_ENABLE;
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
- scr |= BF_SAIF_CTRL_WORD_LENGTH(0);
- break;
- case SNDRV_PCM_FORMAT_S20_3LE:
- scr |= BF_SAIF_CTRL_WORD_LENGTH(4);
- scr |= BM_SAIF_CTRL_BITCLK_48XFS_ENABLE;
- break;
- case SNDRV_PCM_FORMAT_S24_LE:
- scr |= BF_SAIF_CTRL_WORD_LENGTH(8);
- scr |= BM_SAIF_CTRL_BITCLK_48XFS_ENABLE;
- break;
default: return -EINVAL;
Will add.
- }
- /* Tx/Rx config */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- /* enable TX mode */
- scr &= ~BM_SAIF_CTRL_READ_MODE;
- } else {
- /* enable RX mode */
- scr |= BM_SAIF_CTRL_READ_MODE;
- }
- __raw_writel(scr, saif->base + SAIF_CTRL);
- return 0;
+}
+static int mxs_saif_prepare(struct snd_pcm_substream *substream,
- struct snd_soc_dai *cpu_dai)
+{
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- __raw_writel(BM_SAIF_CTRL_CLKGATE,
- saif->base + SAIF_CTRL + MXS_CLR_ADDR);
- return 0;
+}
+static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
- struct snd_soc_dai *cpu_dai)
+{
- struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- /*write a data to saif data register to trigger
- the transfer*/
/* multiline comments * like this please */
Got it.
- __raw_writel(0, saif->base + SAIF_DATA);
- else
- /*read a data from saif data register to trigger
- the receive*/
- __raw_readl(saif->base + SAIF_DATA);
- break;
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- break;
- default:
- return -EINVAL;
- }
- return 0;
+}
+#define MXS_SAIF_RATES SNDRV_PCM_RATE_8000_192000 +#define MXS_SAIF_FORMATS \
- (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
- SNDRV_PCM_FMTBIT_S24_LE)
+static struct snd_soc_dai_ops mxs_saif_dai_ops = {
- .startup = mxs_saif_startup,
- .trigger = mxs_saif_trigger,
- .prepare = mxs_saif_prepare,
- .hw_params = mxs_saif_hw_params,
- .set_sysclk = mxs_saif_set_dai_sysclk,
- .set_clkdiv = mxs_saif_set_dai_clkdiv,
- .set_fmt = mxs_saif_set_dai_fmt,
+};
+static int mxs_saif_dai_probe(struct snd_soc_dai *dai) +{
- struct mxs_saif *saif = dev_get_drvdata(dai->dev);
- snd_soc_dai_set_drvdata(dai, saif);
- /* Reset */
- __raw_writel(BM_SAIF_CTRL_SFTRST,
- saif->base + SAIF_CTRL + MXS_CLR_ADDR);
- /* enable MCLK output early since codec may need it */
- __raw_writel(BM_SAIF_CTRL_CLKGATE,
- saif->base + SAIF_CTRL + MXS_CLR_ADDR);
- __raw_writel(BM_SAIF_CTRL_RUN,
- saif->base + SAIF_CTRL + MXS_SET_ADDR);
- return 0;
+}
+static struct snd_soc_dai_driver mxs_saif_dai = {
- .name = "mxs-saif",
- .probe = mxs_saif_dai_probe,
- .playback = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = MXS_SAIF_RATES,
- .formats = MXS_SAIF_FORMATS,
- },
- .capture = {
- .channels_min = 2,
- .channels_max = 2,
- .rates = MXS_SAIF_RATES,
- .formats = MXS_SAIF_FORMATS,
- },
- .ops = &mxs_saif_dai_ops,
+};
+static irqreturn_t mxs_saif_irq(int irq, void *dev_id) +{
- struct mxs_saif *saif = dev_id;
- if (saif->fifo_err_counter++ % 100 == 0)
- printk(KERN_ERR "saif_irq SAIF_STAT %x SAIF_CTRL %x \
- fifo_errs=%d \n",
- __raw_readl(saif->base + SAIF_STAT),
- __raw_readl(saif->base + SAIF_CTRL),
- saif->fifo_err_counter);
- __raw_writel(BM_SAIF_STAT_FIFO_UNDERFLOW_IRQ |
- BM_SAIF_STAT_FIFO_OVERFLOW_IRQ,
- saif->base + SAIF_STAT + MXS_CLR_ADDR);
- return IRQ_HANDLED;
+}
+static int mxs_saif_probe(struct platform_device *pdev) +{
- struct resource *res;
- struct mxs_saif *saif;
- int ret = 0;
- saif = kzalloc(sizeof(*saif), GFP_KERNEL);
- if (!saif)
- return -ENOMEM;
Consider using devm_kzalloc and friends, it makes the error path less error prone.
Will use it. Thanks for the suggestion.
- saif->irq = platform_get_irq(pdev, 0);
- if (saif->irq < 0) {
- ret = saif->irq;
- dev_err(&pdev->dev, "failed to get irq resource: %d\n",
- ret);
- goto failed_get_irq1;
- }
- saif->fifo_err_counter = 0;
- ret = request_irq(saif->irq, mxs_saif_irq, 0, "mxs-saif", saif);
- if (ret) {
- dev_err(&pdev->dev, "failed to request irq\n");
- goto failed_req_irq;
- }
- saif->dma_param.chan_irq = platform_get_irq(pdev, 1);
- if (saif->dma_param.chan_irq < 0) {
- ret = saif->dma_param.chan_irq;
- dev_err(&pdev->dev, "failed to get dma irq resource: %d\n",
- ret);
- goto failed_get_irq2;
- }
- saif->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(saif->clk)) {
- ret = PTR_ERR(saif->clk);
- dev_err(&pdev->dev, "Cannot get the clock: %d\n",
- ret);
- goto failed_clk;
- }
- clk_set_rate(saif->clk, 12000000);
- clk_enable(saif->clk);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENODEV;
- dev_err(&pdev->dev, "failed to get io resource: %d\n",
- ret);
- goto failed_get_resource;
- }
- if (!request_mem_region(res->start, resource_size(res), "mxs-saif")) {
- dev_err(&pdev->dev, "request_mem_region failed\n");
- ret = -EBUSY;
- goto failed_get_resource;
- }
- saif->base = ioremap(res->start, resource_size(res));
- if (!saif->base) {
- dev_err(&pdev->dev, "ioremap failed\n");
- ret = -ENODEV;
- goto failed_ioremap;
- }
- res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!res) {
- ret = -ENODEV;
- dev_err(&pdev->dev, "failed to get dma resource: %d\n",
- ret);
- goto failed_get_resource;
- }
- saif->dma_param.chan_num = res->start;
- platform_set_drvdata(pdev, saif);
- ret = snd_soc_register_dai(&pdev->dev, &mxs_saif_dai);
- if (ret) {
- dev_err(&pdev->dev, "register DAI failed\n");
- goto failed_register;
- }
- saif->soc_platform_pdev = platform_device_alloc(
- "mxs-pcm-audio", pdev->id);
- if (!saif->soc_platform_pdev) {
- ret = -ENOMEM;
- goto failed_pdev_alloc;
- }
- platform_set_drvdata(saif->soc_platform_pdev, saif);
- ret = platform_device_add(saif->soc_platform_pdev);
- if (ret) {
- dev_err(&pdev->dev, "failed to add soc platform device\n");
- goto failed_pdev_add;
- }
- return 0;
+failed_pdev_add:
- platform_device_put(saif->soc_platform_pdev);
+failed_pdev_alloc:
- snd_soc_unregister_dai(&pdev->dev);
+failed_register:
- iounmap(saif->base);
+failed_ioremap:
- release_mem_region(res->start, resource_size(res));
+failed_get_resource:
- clk_disable(saif->clk);
- clk_put(saif->clk);
+failed_clk: +failed_get_irq2:
- free_irq(saif->irq, saif);
+failed_req_irq: +failed_get_irq1:
- kfree(saif);
- return ret;
+}
+static int __devexit mxs_saif_remove(struct platform_device *pdev) +{
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- struct mxs_saif *saif = platform_get_drvdata(pdev);
- platform_device_unregister(saif->soc_platform_pdev);
- snd_soc_unregister_dai(&pdev->dev);
- iounmap(saif->base);
- release_mem_region(res->start, resource_size(res));
- free_irq(saif->irq, saif);
- clk_disable(saif->clk);
- clk_put(saif->clk);
- kfree(saif);
- return 0;
+}
+static struct platform_driver mxs_saif_driver = {
- .probe = mxs_saif_probe,
- .remove = __devexit_p(mxs_saif_remove),
- .driver = {
- .name = "mxs-saif",
- .owner = THIS_MODULE,
- },
+};
+static int __init mxs_saif_init(void) +{
- return platform_driver_register(&mxs_saif_driver);
+}
+static void __exit mxs_saif_exit(void) +{
- platform_driver_unregister(&mxs_saif_driver);
+}
+module_init(mxs_saif_init); +module_exit(mxs_saif_exit); +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("MXS ASoC SAIF driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/mxs/mxs-saif.h b/sound/soc/mxs/mxs-saif.h new file mode 100644 index 0000000..dd26b37 --- /dev/null +++ b/sound/soc/mxs/mxs-saif.h @@ -0,0 +1,124 @@ +/*
- Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
- 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.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
+#ifndef _MXS_SAIF_H +#define _MXS_SAIF_H
+#define SAIF_CTRL 0x0 +#define SAIF_STAT 0x10 +#define SAIF_DATA 0x20 +#define SAIF_VERSION 0X30
+/* SAIF_CTRL */ +#define BM_SAIF_CTRL_SFTRST 0x80000000 +#define BM_SAIF_CTRL_CLKGATE 0x40000000 +#define BP_SAIF_CTRL_BITCLK_MULT_RATE 27 +#define BM_SAIF_CTRL_BITCLK_MULT_RATE 0x38000000 +#define BF_SAIF_CTRL_BITCLK_MULT_RATE(v) \
- (((v) << 27) & BM_SAIF_CTRL_BITCLK_MULT_RATE)
+#define BM_SAIF_CTRL_BITCLK_BASE_RATE 0x04000000 +#define BM_SAIF_CTRL_FIFO_ERROR_IRQ_EN 0x02000000 +#define BM_SAIF_CTRL_FIFO_SERVICE_IRQ_EN 0x01000000 +#define BP_SAIF_CTRL_RSRVD2 21 +#define BM_SAIF_CTRL_RSRVD2 0x00E00000
+#define BP_SAIF_CTRL_DMAWAIT_COUNT 16 +#define BM_SAIF_CTRL_DMAWAIT_COUNT 0x001F0000 +#define BF_SAIF_CTRL_DMAWAIT_COUNT(v) \
- (((v) << 16) & BM_SAIF_CTRL_DMAWAIT_COUNT)
+#define BP_SAIF_CTRL_CHANNEL_NUM_SELECT 14 +#define BM_SAIF_CTRL_CHANNEL_NUM_SELECT 0x0000C000 +#define BF_SAIF_CTRL_CHANNEL_NUM_SELECT(v) \
- (((v) << 14) & BM_SAIF_CTRL_CHANNEL_NUM_SELECT)
+#define BM_SAIF_CTRL_LRCLK_PULSE 0x00002000 +#define BM_SAIF_CTRL_BIT_ORDER 0x00001000 +#define BM_SAIF_CTRL_DELAY 0x00000800 +#define BM_SAIF_CTRL_JUSTIFY 0x00000400 +#define BM_SAIF_CTRL_LRCLK_POLARITY 0x00000200 +#define BM_SAIF_CTRL_BITCLK_EDGE 0x00000100 +#define BP_SAIF_CTRL_WORD_LENGTH 4 +#define BM_SAIF_CTRL_WORD_LENGTH 0x000000F0 +#define BF_SAIF_CTRL_WORD_LENGTH(v) \
- (((v) << 4) & BM_SAIF_CTRL_WORD_LENGTH)
+#define BM_SAIF_CTRL_BITCLK_48XFS_ENABLE 0x00000008 +#define BM_SAIF_CTRL_SLAVE_MODE 0x00000004 +#define BM_SAIF_CTRL_READ_MODE 0x00000002 +#define BM_SAIF_CTRL_RUN 0x00000001
+/* SAIF_STAT */ +#define BM_SAIF_STAT_PRESENT 0x80000000 +#define BP_SAIF_STAT_RSRVD2 17 +#define BM_SAIF_STAT_RSRVD2 0x7FFE0000 +#define BF_SAIF_STAT_RSRVD2(v) \
- (((v) << 17) & BM_SAIF_STAT_RSRVD2)
+#define BM_SAIF_STAT_DMA_PREQ 0x00010000 +#define BP_SAIF_STAT_RSRVD1 7 +#define BM_SAIF_STAT_RSRVD1 0x0000FF80 +#define BF_SAIF_STAT_RSRVD1(v) \
- (((v) << 7) & BM_SAIF_STAT_RSRVD1)
+#define BM_SAIF_STAT_FIFO_UNDERFLOW_IRQ 0x00000040 +#define BM_SAIF_STAT_FIFO_OVERFLOW_IRQ 0x00000020 +#define BM_SAIF_STAT_FIFO_SERVICE_IRQ 0x00000010 +#define BP_SAIF_STAT_RSRVD0 1 +#define BM_SAIF_STAT_RSRVD0 0x0000000E +#define BF_SAIF_STAT_RSRVD0(v) \
- (((v) << 1) & BM_SAIF_STAT_RSRVD0)
+#define BM_SAIF_STAT_BUSY 0x00000001
+/* SAFI_DATA */ +#define BP_SAIF_DATA_PCM_RIGHT 16 +#define BM_SAIF_DATA_PCM_RIGHT 0xFFFF0000 +#define BF_SAIF_DATA_PCM_RIGHT(v) \
- (((v) << 16) & BM_SAIF_DATA_PCM_RIGHT)
+#define BP_SAIF_DATA_PCM_LEFT 0 +#define BM_SAIF_DATA_PCM_LEFT 0x0000FFFF +#define BF_SAIF_DATA_PCM_LEFT(v) \
- (((v) << 0) & BM_SAIF_DATA_PCM_LEFT)
+/* SAIF_VERSION */ +#define BP_SAIF_VERSION_MAJOR 24 +#define BM_SAIF_VERSION_MAJOR 0xFF000000 +#define BF_SAIF_VERSION_MAJOR(v) \
- (((v) << 24) & BM_SAIF_VERSION_MAJOR)
+#define BP_SAIF_VERSION_MINOR 16 +#define BM_SAIF_VERSION_MINOR 0x00FF0000 +#define BF_SAIF_VERSION_MINOR(v) \
- (((v) << 16) & BM_SAIF_VERSION_MINOR)
+#define BP_SAIF_VERSION_STEP 0 +#define BM_SAIF_VERSION_STEP 0x0000FFFF +#define BF_SAIF_VERSION_STEP(v) \
- (((v) << 0) & BM_SAIF_VERSION_STEP)
+#define MXS_SAIF_SYS_CLK 0 +#define MXS_SAIF_MCLK 1
+#include "mxs-pcm.h"
+struct mxs_saif {
- struct clk *clk;
- void __iomem *base;
- int irq;
- struct mxs_pcm_dma_params dma_param;
- struct platform_device *soc_platform_pdev;
- u32 fifo_err_counter;
+};
+#endif
1.7.0.4
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