ALSA: ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream
Daniel Mack [Mon, 22 Mar 2010 09:11:15 +0000 (10:11 +0100)]
This fixes a memory corruption when ASoC devices are used in
full-duplex mode. Specifically for pxa-ssp code, where this pointer
is dynamically allocated for each direction and destroyed upon each
stream start.

All other platforms are fixed blindly, I couldn't even compile-test
them. Sorry for any breakage I may have caused.

[Note that this is a backported version for 2.6.34.
 Upstream commit is fd23b7dee]

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Reported-by: Michael Hirsch <m.hirsch@raumfeld.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

23 files changed:
include/sound/soc-dai.h
include/sound/soc.h
sound/soc/atmel/atmel-pcm.c
sound/soc/atmel/atmel_ssc_dai.c
sound/soc/davinci/davinci-i2s.c
sound/soc/davinci/davinci-mcasp.c
sound/soc/davinci/davinci-pcm.c
sound/soc/imx/imx-pcm-dma-mx2.c
sound/soc/imx/imx-ssi.c
sound/soc/omap/omap-mcbsp.c
sound/soc/omap/omap-mcpdm.c
sound/soc/omap/omap-pcm.c
sound/soc/pxa/pxa-ssp.c
sound/soc/pxa/pxa2xx-ac97.c
sound/soc/pxa/pxa2xx-i2s.c
sound/soc/pxa/pxa2xx-pcm.c
sound/soc/s3c24xx/s3c-ac97.c
sound/soc/s3c24xx/s3c-dma.c
sound/soc/s3c24xx/s3c-i2s-v2.c
sound/soc/s3c24xx/s3c-pcm.c
sound/soc/s3c24xx/s3c24xx-i2s.c
sound/soc/s6000/s6000-i2s.c
sound/soc/s6000/s6000-pcm.c

index 061f16d..0a0b019 100644 (file)
@@ -219,7 +219,6 @@ struct snd_soc_dai {
        struct snd_soc_codec *codec;
        unsigned int active;
        unsigned char pop_wait:1;
-       void *dma_data;
 
        /* DAI private data */
        void *private_data;
@@ -230,4 +229,21 @@ struct snd_soc_dai {
        struct list_head list;
 };
 
+static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai,
+                                            const struct snd_pcm_substream *ss)
+{
+       return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
+               dai->playback.dma_data : dai->capture.dma_data;
+}
+
+static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
+                                           const struct snd_pcm_substream *ss,
+                                           void *data)
+{
+       if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
+               dai->playback.dma_data = data;
+       else
+               dai->capture.dma_data = data;
+}
+
 #endif
index 5d234a8..a57fbfc 100644 (file)
@@ -375,6 +375,7 @@ struct snd_soc_pcm_stream {
        unsigned int channels_min;      /* min channels */
        unsigned int channels_max;      /* max channels */
        unsigned int active:1;          /* stream is in use */
+       void *dma_data;                 /* used by platform code */
 };
 
 /* SoC audio ops */
index 9ef6b96..3e6628c 100644 (file)
@@ -180,7 +180,7 @@ static int atmel_pcm_hw_params(struct snd_pcm_substream *substream,
        snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
        runtime->dma_bytes = params_buffer_bytes(params);
 
-       prtd->params = rtd->dai->cpu_dai->dma_data;
+       prtd->params = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
        prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
 
        prtd->dma_buffer = runtime->dma_addr;
index e588e63..0b59806 100644 (file)
@@ -363,12 +363,12 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
        ssc_p->dma_params[dir] = dma_params;
 
        /*
-        * The cpu_dai->dma_data field is only used to communicate the
-        * appropriate DMA parameters to the pcm driver hw_params()
+        * The snd_soc_pcm_stream->dma_data field is only used to communicate
+        * the appropriate DMA parameters to the pcm driver hw_params()
         * function.  It should not be used for other purposes
         * as it is common to all substreams.
         */
-       rtd->dai->cpu_dai->dma_data = dma_params;
+       snd_soc_dai_set_dma_data(rtd->dai->cpu_dai, substream, dma_params);
 
        channels = params_channels(params);
 
index 6362ca0..4aad7ec 100644 (file)
@@ -585,7 +585,8 @@ static int davinci_i2s_probe(struct platform_device *pdev)
        dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel = res->start;
 
        davinci_i2s_dai.private_data = dev;
-       davinci_i2s_dai.dma_data = dev->dma_params;
+       davinci_i2s_dai.capture.dma_data = dev->dma_params;
+       davinci_i2s_dai.playback.dma_data = dev->dma_params;
        ret = snd_soc_register_dai(&davinci_i2s_dai);
        if (ret != 0)
                goto err_free_mem;
index ab6518d..c056bfb 100644 (file)
@@ -917,7 +917,8 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 
        dma_data->channel = res->start;
        davinci_mcasp_dai[pdata->op_mode].private_data = dev;
-       davinci_mcasp_dai[pdata->op_mode].dma_data = dev->dma_params;
+       davinci_mcasp_dai[pdata->op_mode].capture.dma_data = dev->dma_params;
+       davinci_mcasp_dai[pdata->op_mode].playback.dma_data = dev->dma_params;
        davinci_mcasp_dai[pdata->op_mode].dev = &pdev->dev;
        ret = snd_soc_register_dai(&davinci_mcasp_dai[pdata->op_mode]);
 
index 80c7fdf..2dc406f 100644 (file)
@@ -649,8 +649,10 @@ static int davinci_pcm_open(struct snd_pcm_substream *substream)
        struct snd_pcm_hardware *ppcm;
        int ret = 0;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       struct davinci_pcm_dma_params *pa = rtd->dai->cpu_dai->dma_data;
+       struct davinci_pcm_dma_params *pa;
        struct davinci_pcm_dma_params *params;
+
+       pa = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
        if (!pa)
                return -ENODEV;
        params = &pa[substream->stream];
index 19452e4..c78c000 100644 (file)
@@ -83,11 +83,13 @@ static void snd_imx_dma_err_callback(int channel, void *data, int err)
 static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream)
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       struct imx_pcm_dma_params *dma_params = rtd->dai->cpu_dai->dma_data;
+       struct imx_pcm_dma_params *dma_params;
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct imx_pcm_runtime_data *iprtd = runtime->private_data;
        int ret;
 
+       dma_params = snd_soc_get_dma_data(rtd->dai->cpu_dai, substream);
+
        iprtd->dma = imx_dma_request_by_prio(DRV_NAME, DMA_PRIO_HIGH);
        if (iprtd->dma < 0) {
                pr_err("Failed to claim the audio DMA\n");
@@ -192,10 +194,12 @@ static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
 {
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       struct imx_pcm_dma_params *dma_params = rtd->dai->cpu_dai->dma_data;
+       struct imx_pcm_dma_params *dma_params;
        struct imx_pcm_runtime_data *iprtd = runtime->private_data;
        int err;
 
+       dma_params = snd_soc_get_dma_data(rtd->dai->cpu_dai, substream);
+
        iprtd->substream = substream;
        iprtd->buf = (unsigned int *)substream->dma_buffer.area;
        iprtd->period_cnt = 0;
index 56f46a7..28e55c7 100644 (file)
@@ -234,17 +234,20 @@ static int imx_ssi_hw_params(struct snd_pcm_substream *substream,
                             struct snd_soc_dai *cpu_dai)
 {
        struct imx_ssi *ssi = cpu_dai->private_data;
+       struct imx_pcm_dma_params *dma_data;
        u32 reg, sccr;
 
        /* Tx/Rx config */
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
                reg = SSI_STCCR;
-               cpu_dai->dma_data = &ssi->dma_params_tx;
+               dma_data = &ssi->dma_params_tx;
        } else {
                reg = SSI_SRCCR;
-               cpu_dai->dma_data = &ssi->dma_params_rx;
+               dma_data = &ssi->dma_params_rx;
        }
 
+       snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+
        sccr = readl(ssi->base + reg) & ~SSI_STCCR_WL_MASK;
 
        /* DAI data (word) size */
index e814a95..8ad9dc9 100644 (file)
@@ -297,7 +297,9 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
        omap_mcbsp_dai_dma_params[id][substream->stream].sync_mode = sync_mode;
        omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
                                                        OMAP_DMA_DATA_TYPE_S16;
-       cpu_dai->dma_data = &omap_mcbsp_dai_dma_params[id][substream->stream];
+
+       snd_soc_dai_set_dma_data(cpu_dai, substream,
+               &omap_mcbsp_dai_dma_params[id][substream->stream]);
 
        if (mcbsp_data->configured) {
                /* McBSP already configured by another stream */
index 25f19e4..b7f4f7e 100644 (file)
@@ -150,7 +150,8 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
        int stream = substream->stream;
        int channels, err, link_mask = 0;
 
-       cpu_dai->dma_data = &omap_mcpdm_dai_dma_params[stream];
+       snd_soc_dai_set_dma_data(cpu_dai, substream,
+                                &omap_mcpdm_dai_dma_params[stream]);
 
        channels = params_channels(params);
        switch (channels) {
index bdd1097..3945644 100644 (file)
@@ -99,9 +99,11 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream,
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct omap_runtime_data *prtd = runtime->private_data;
-       struct omap_pcm_dma_data *dma_data = rtd->dai->cpu_dai->dma_data;
+       struct omap_pcm_dma_data *dma_data;
        int err = 0;
 
+       dma_data = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+
        /* return if this is a bufferless transfer e.g.
         * codec <--> BT codec or GSM modem -- lg FIXME */
        if (!dma_data)
index 9e95e51..6959c51 100644 (file)
@@ -121,10 +121,9 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
                ssp_disable(ssp);
        }
 
-       if (cpu_dai->dma_data) {
-               kfree(cpu_dai->dma_data);
-               cpu_dai->dma_data = NULL;
-       }
+       kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
+       snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
+
        return ret;
 }
 
@@ -141,10 +140,8 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
                clk_disable(ssp->clk);
        }
 
-       if (cpu_dai->dma_data) {
-               kfree(cpu_dai->dma_data);
-               cpu_dai->dma_data = NULL;
-       }
+       kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
+       snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
 }
 
 #ifdef CONFIG_PM
@@ -569,19 +566,23 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
        u32 sspsp;
        int width = snd_pcm_format_physical_width(params_format(params));
        int ttsa = ssp_read_reg(ssp, SSTSA) & 0xf;
+       struct pxa2xx_pcm_dma_params *dma_data;
+
+       dma_data = snd_soc_dai_get_dma_data(dai, substream);
 
        /* generate correct DMA params */
-       if (cpu_dai->dma_data)
-               kfree(cpu_dai->dma_data);
+       kfree(dma_data);
 
        /* Network mode with one active slot (ttsa == 1) can be used
         * to force 16-bit frame width on the wire (for S16_LE), even
         * with two channels. Use 16-bit DMA transfers for this case.
         */
-       cpu_dai->dma_data = ssp_get_dma_params(ssp,
+       dma_data = ssp_get_dma_params(ssp,
                        ((chn == 2) && (ttsa != 1)) || (width == 32),
                        substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
 
+       snd_soc_dai_set_dma_data(dai, substream, dma_data);
+
        /* we can only change the settings if the port is not in use */
        if (ssp_read_reg(ssp, SSCR0) & SSCR0_SSE)
                return 0;
index e9ae7b3..d314115 100644 (file)
@@ -122,11 +122,14 @@ static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+       struct pxa2xx_pcm_dma_params *dma_data;
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
+               dma_data = &pxa2xx_ac97_pcm_stereo_out;
        else
-               cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
+               dma_data = &pxa2xx_ac97_pcm_stereo_in;
+
+       snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
        return 0;
 }
@@ -137,11 +140,14 @@ static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+       struct pxa2xx_pcm_dma_params *dma_data;
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
+               dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
        else
-               cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
+               dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
+
+       snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
        return 0;
 }
@@ -156,7 +162,8 @@ static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                return -ENODEV;
        else
-               cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
+               snd_soc_dai_set_dma_data(cpu_dai, substream,
+                                        &pxa2xx_ac97_pcm_mic_mono_in);
 
        return 0;
 }
index 6b8f655..c1a5275 100644 (file)
@@ -164,6 +164,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+       struct pxa2xx_pcm_dma_params *dma_data;
 
        BUG_ON(IS_ERR(clk_i2s));
        clk_enable(clk_i2s);
@@ -171,9 +172,11 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
        pxa_i2s_wait();
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_out;
+               dma_data = &pxa2xx_i2s_pcm_stereo_out;
        else
-               cpu_dai->dma_data = &pxa2xx_i2s_pcm_stereo_in;
+               dma_data = &pxa2xx_i2s_pcm_stereo_in;
+
+       snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
        /* is port used by another stream */
        if (!(SACR0 & SACR0_ENB)) {
index d38e395..adc7e6f 100644 (file)
@@ -25,9 +25,11 @@ static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct pxa2xx_runtime_data *prtd = runtime->private_data;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       struct pxa2xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_data;
+       struct pxa2xx_pcm_dma_params *dma;
        int ret;
 
+       dma = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
+
        /* return if this is a bufferless transfer e.g.
         * codec <--> BT codec or GSM modem -- lg FIXME */
        if (!dma)
index ee8ed9d..ecf4fd0 100644 (file)
@@ -224,11 +224,14 @@ static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+       struct s3c_dma_params *dma_data;
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               cpu_dai->dma_data = &s3c_ac97_pcm_out;
+               dma_data = &s3c_ac97_pcm_out;
        else
-               cpu_dai->dma_data = &s3c_ac97_pcm_in;
+               dma_data = &s3c_ac97_pcm_in;
+
+       snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
 
        return 0;
 }
@@ -238,8 +241,8 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
 {
        u32 ac_glbctrl;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       int channel = ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->channel;
+       struct s3c_dma_params *dma_data =
+               snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
        ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
        if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
@@ -265,7 +268,7 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
 
        writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
 
-       s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+       s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
        return 0;
 }
@@ -280,7 +283,7 @@ static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                return -ENODEV;
        else
-               cpu_dai->dma_data = &s3c_ac97_mic_in;
+               snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
 
        return 0;
 }
@@ -290,8 +293,8 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
 {
        u32 ac_glbctrl;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       int channel = ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->channel;
+       struct s3c_dma_params *dma_data =
+               snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
        ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
        ac_glbctrl &= ~S3C_AC97_GLBCTRL_MICINTM_MASK;
@@ -311,7 +314,7 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
 
        writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
 
-       s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+       s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
        return 0;
 }
index 7725e26..1b61c23 100644 (file)
@@ -145,10 +145,12 @@ static int s3c_dma_hw_params(struct snd_pcm_substream *substream,
        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 s3c_dma_params *dma = rtd->dai->cpu_dai->dma_data;
        unsigned long totbytes = params_buffer_bytes(params);
+       struct s3c_dma_params *dma =
+               snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
        int ret = 0;
 
+
        pr_debug("Entered %s\n", __func__);
 
        /* return if this is a bufferless transfer e.g.
index e994d83..8851594 100644 (file)
@@ -339,14 +339,17 @@ static int s3c2412_i2s_hw_params(struct snd_pcm_substream *substream,
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai_link *dai = rtd->dai;
        struct s3c_i2sv2_info *i2s = to_info(dai->cpu_dai);
+       struct s3c_dma_params *dma_data;
        u32 iismod;
 
        pr_debug("Entered %s\n", __func__);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               dai->cpu_dai->dma_data = i2s->dma_playback;
+               dma_data = i2s->dma_playback;
        else
-               dai->cpu_dai->dma_data = i2s->dma_capture;
+               dma_data = i2s->dma_capture;
+
+       snd_soc_dai_set_dma_data(dai->cpu_dai, substream, dma_data);
 
        /* Working copies of register */
        iismod = readl(i2s->regs + S3C2412_IISMOD);
@@ -394,8 +397,8 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
        int capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE);
        unsigned long irqs;
        int ret = 0;
-       int channel = ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->channel;
+       struct s3c_dma_params *dma_data =
+               snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
        pr_debug("Entered %s\n", __func__);
 
@@ -431,7 +434,7 @@ static int s3c2412_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                 * of the auto reload mechanism of S3C24XX.
                 * This call won't bother S3C64XX.
                 */
-               s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+               s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
 
                break;
 
index a98f40c..326f0a9 100644 (file)
@@ -178,6 +178,7 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
        struct snd_soc_dai_link *dai = rtd->dai;
        struct s3c_pcm_info *pcm = to_info(dai->cpu_dai);
+       struct s3c_dma_params *dma_data;
        void __iomem *regs = pcm->regs;
        struct clk *clk;
        int sclk_div, sync_div;
@@ -187,9 +188,11 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
        dev_dbg(pcm->dev, "Entered %s\n", __func__);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               dai->cpu_dai->dma_data = pcm->dma_playback;
+               dma_data = pcm->dma_playback;
        else
-               dai->cpu_dai->dma_data = pcm->dma_capture;
+               dma_data = pcm->dma_capture;
+
+       snd_soc_dai_set_dma_data(dai->cpu_dai, substream, dma_data);
 
        /* Strictly check for sample size */
        switch (params_format(params)) {
index 0bc5950..c3ac890 100644 (file)
@@ -242,14 +242,17 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
                                 struct snd_soc_dai *dai)
 {
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct s3c_dma_params *dma_data;
        u32 iismod;
 
        pr_debug("Entered %s\n", __func__);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-               rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_out;
+               dma_data = &s3c24xx_i2s_pcm_stereo_out;
        else
-               rtd->dai->cpu_dai->dma_data = &s3c24xx_i2s_pcm_stereo_in;
+               dma_data = &s3c24xx_i2s_pcm_stereo_in;
+
+       snd_soc_dai_set_dma_data(rtd->dai->cpu_dai, substream, dma_data);
 
        /* Working copies of register */
        iismod = readl(s3c24xx_i2s.regs + S3C2410_IISMOD);
@@ -258,13 +261,11 @@ static int s3c24xx_i2s_hw_params(struct snd_pcm_substream *substream,
        switch (params_format(params)) {
        case SNDRV_PCM_FORMAT_S8:
                iismod &= ~S3C2410_IISMOD_16BIT;
-               ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->dma_size = 1;
+               dma_data->dma_size = 1;
                break;
        case SNDRV_PCM_FORMAT_S16_LE:
                iismod |= S3C2410_IISMOD_16BIT;
-               ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->dma_size = 2;
+               dma_data->dma_size = 2;
                break;
        default:
                return -EINVAL;
@@ -280,8 +281,8 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 {
        int ret = 0;
        struct snd_soc_pcm_runtime *rtd = substream->private_data;
-       int channel = ((struct s3c_dma_params *)
-                 rtd->dai->cpu_dai->dma_data)->channel;
+       struct s3c_dma_params *dma_data =
+               snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
 
        pr_debug("Entered %s\n", __func__);
 
@@ -300,7 +301,7 @@ static int s3c24xx_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
                else
                        s3c24xx_snd_txctrl(1);
 
-               s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STARTED);
+               s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
                break;
        case SNDRV_PCM_TRIGGER_STOP:
        case SNDRV_PCM_TRIGGER_SUSPEND:
index c5cda18..fa23854 100644 (file)
@@ -518,7 +518,8 @@ static int __devinit s6000_i2s_probe(struct platform_device *pdev)
 
        s6000_i2s_dai.dev = &pdev->dev;
        s6000_i2s_dai.private_data = dev;
-       s6000_i2s_dai.dma_data = &dev->dma_params;
+       s6000_i2s_dai.capture.dma_data = &dev->dma_params;
+       s6000_i2s_dai.playback.dma_data = &dev->dma_params;
 
        dev->sifbase = sifmem->start;
        dev->scbbase = mmio;
index 1d61109..9c7f7f0 100644 (file)
@@ -58,13 +58,15 @@ static void s6000_pcm_enqueue_dma(struct snd_pcm_substream *substream)
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct s6000_runtime_data *prtd = runtime->private_data;
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        int channel;
        unsigned int period_size;
        unsigned int dma_offset;
        dma_addr_t dma_pos;
        dma_addr_t src, dst;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        period_size = snd_pcm_lib_period_bytes(substream);
        dma_offset = prtd->period * period_size;
        dma_pos = runtime->dma_addr + dma_offset;
@@ -101,7 +103,8 @@ static irqreturn_t s6000_pcm_irq(int irq, void *data)
 {
        struct snd_pcm *pcm = data;
        struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-       struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *params =
+               snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
        struct s6000_runtime_data *prtd;
        unsigned int has_xrun;
        int i, ret = IRQ_NONE;
@@ -172,11 +175,13 @@ static int s6000_pcm_start(struct snd_pcm_substream *substream)
 {
        struct s6000_runtime_data *prtd = substream->runtime->private_data;
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        unsigned long flags;
        int srcinc;
        u32 dma;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        spin_lock_irqsave(&prtd->lock, flags);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -212,10 +217,12 @@ static int s6000_pcm_stop(struct snd_pcm_substream *substream)
 {
        struct s6000_runtime_data *prtd = substream->runtime->private_data;
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        unsigned long flags;
        u32 channel;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
                channel = par->dma_out;
        else
@@ -236,9 +243,11 @@ static int s6000_pcm_stop(struct snd_pcm_substream *substream)
 static int s6000_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 {
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        int ret;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        ret = par->trigger(substream, cmd, 0);
        if (ret < 0)
                return ret;
@@ -275,13 +284,15 @@ static int s6000_pcm_prepare(struct snd_pcm_substream *substream)
 static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
 {
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct s6000_runtime_data *prtd = runtime->private_data;
        unsigned long flags;
        unsigned int offset;
        dma_addr_t count;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        spin_lock_irqsave(&prtd->lock, flags);
 
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -305,11 +316,12 @@ static snd_pcm_uframes_t s6000_pcm_pointer(struct snd_pcm_substream *substream)
 static int s6000_pcm_open(struct snd_pcm_substream *substream)
 {
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        struct snd_pcm_runtime *runtime = substream->runtime;
        struct s6000_runtime_data *prtd;
        int ret;
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
        snd_soc_set_runtime_hwparams(substream, &s6000_pcm_hardware);
 
        ret = snd_pcm_hw_constraint_step(runtime, 0,
@@ -364,7 +376,7 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
                                 struct snd_pcm_hw_params *hw_params)
 {
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par;
        int ret;
        ret = snd_pcm_lib_malloc_pages(substream,
                                       params_buffer_bytes(hw_params));
@@ -373,6 +385,8 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
                return ret;
        }
 
+       par = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        if (par->same_rate) {
                spin_lock(&par->lock);
                if (par->rate == -1 ||
@@ -392,7 +406,8 @@ static int s6000_pcm_hw_params(struct snd_pcm_substream *substream,
 static int s6000_pcm_hw_free(struct snd_pcm_substream *substream)
 {
        struct snd_soc_pcm_runtime *soc_runtime = substream->private_data;
-       struct s6000_pcm_dma_params *par = soc_runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *par =
+               snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
 
        spin_lock(&par->lock);
        par->in_use &= ~(1 << substream->stream);
@@ -417,7 +432,8 @@ static struct snd_pcm_ops s6000_pcm_ops = {
 static void s6000_pcm_free(struct snd_pcm *pcm)
 {
        struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-       struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *params =
+               snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
 
        free_irq(params->irq, pcm);
        snd_pcm_lib_preallocate_free_for_all(pcm);
@@ -429,9 +445,11 @@ static int s6000_pcm_new(struct snd_card *card,
                         struct snd_soc_dai *dai, struct snd_pcm *pcm)
 {
        struct snd_soc_pcm_runtime *runtime = pcm->private_data;
-       struct s6000_pcm_dma_params *params = runtime->dai->cpu_dai->dma_data;
+       struct s6000_pcm_dma_params *params;
        int res;
 
+       params = snd_soc_dai_get_dma_data(soc_runtime->dai->cpu_dai, substream);
+
        if (!card->dev->dma_mask)
                card->dev->dma_mask = &s6000_pcm_dmamask;
        if (!card->dev->coherent_dma_mask)