treewide: prefix RTOS lib/dma.h DMA_ definitions with SOF_DMA_

Add a namespace prefix to DMA_ macro definitions in the zephyr/lib/dma.h.
This change makes it easier to identify what code is using native Zephyr
definitions (DMA_*) and which are SOF side definition (SOF_DMA_*).

To support non-Zephyr targets, add a minimimal compatibility layer
to xtos/lib/dma.h and posix/lib/dma.h. This only covers a few definitions
needed by e.g. ipc/ipc[34]/dai.c.

To support Zephyr targets that still use XTOS drivers (like imx8m),
add compatibility definitions to zephyr/lib/dma-legacy.h. It will
be later easy to drop dma-legacy.h when all targets have moved
over.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

posix/include/sof/lib/dma.h

@@ -41,6 +41,12 @@ struct comp_buffer;
  */
 
 /* DMA direction bitmasks used to define DMA copy direction */
+#define SOF_DMA_DIR_MEM_TO_MEM		DMA_DIR_MEM_TO_MEM
+#define SOF_DMA_DIR_HMEM_TO_LMEM	DMA_DIR_HMEM_TO_LMEM
+#define SOF_DMA_DIR_LMEM_TO_HMEM	DMA_DIR_LMEM_TO_HMEM
+#define SOF_DMA_DIR_MEM_TO_DEV		DMA_DIR_MEM_TO_DEV
+#define SOF_DMA_DIR_DEV_TO_MEM		DMA_DIR_DEV_TO_MEM
+#define SOF_DMA_DIR_DEV_TO_DEV		DMA_DIR_DEV_TO_DEV
 #define DMA_DIR_MEM_TO_MEM	BIT(0) /**< local memory copy */
 #define DMA_DIR_HMEM_TO_LMEM	BIT(1) /**< host memory to local mem copy */
 #define DMA_DIR_LMEM_TO_HMEM	BIT(2) /**< local mem to host mem copy */
@@ -60,6 +66,7 @@ struct comp_buffer;
 
 /* DMA dev type bitmasks used to define the type of DMA */
 
+#define SOF_DMA_DEV_HOST	DMA_DEV_HOST
 #define DMA_DEV_HOST		BIT(0) /**< connectable to host */
 #define DMA_DEV_HDA		BIT(1) /**< connectable to HD/A link */
 #define DMA_DEV_SSP		BIT(2) /**< connectable to SSP fifo */
@@ -98,6 +105,8 @@ enum dma_irq_cmd {
 	DMA_IRQ_UNMASK
 };
 
+#define SOF_DMA_CHAN_INVALID	DMA_CHAN_INVALID
+#define SOF_DMA_CORE_INVALID	DMA_CORE_INVALID
 #define DMA_CHAN_INVALID	0xFFFFFFFF
 #define DMA_CORE_INVALID	0xFFFFFFFF
 

src/audio/chain_dma.c

@@ -536,18 +536,18 @@ static int chain_task_init(struct comp_dev *dev, uint8_t host_dma_id, uint8_t li
 
 	/* request HDA DMA with shared access privilege */
 	dir = (cd->stream_direction == SOF_IPC_STREAM_PLAYBACK) ?
-		DMA_DIR_HMEM_TO_LMEM : DMA_DIR_LMEM_TO_HMEM;
+		SOF_DMA_DIR_HMEM_TO_LMEM : SOF_DMA_DIR_LMEM_TO_HMEM;
 
-	cd->dma_host = dma_get(dir, 0, DMA_DEV_HOST, DMA_ACCESS_SHARED);
+	cd->dma_host = dma_get(dir, 0, SOF_DMA_DEV_HOST, SOF_DMA_ACCESS_SHARED);
 	if (!cd->dma_host) {
 		comp_err(dev, "chain_task_init(): dma_get() returned NULL");
 		return -EINVAL;
 	}
 
 	dir = (cd->stream_direction == SOF_IPC_STREAM_PLAYBACK) ?
-		DMA_DIR_MEM_TO_DEV : DMA_DIR_DEV_TO_MEM;
+		SOF_DMA_DIR_MEM_TO_DEV : SOF_DMA_DIR_DEV_TO_MEM;
 
-	cd->dma_link = dma_get(dir, DMA_CAP_HDA, DMA_DEV_HDA, DMA_ACCESS_SHARED);
+	cd->dma_link = dma_get(dir, SOF_DMA_CAP_HDA, SOF_DMA_DEV_HDA, SOF_DMA_ACCESS_SHARED);
 	if (!cd->dma_link) {
 		dma_put(cd->dma_host);
 		comp_err(dev, "chain_task_init(): dma_get() returned NULL");

src/audio/dai-zephyr.c

@@ -243,11 +243,11 @@ static int dai_get_fifo(struct dai *dai, int direction, int stream_id)
 }
 
 /* this is called by DMA driver every time descriptor has completed */
-static enum dma_cb_status
+static enum sof_dma_cb_status
 dai_dma_cb(struct dai_data *dd, struct comp_dev *dev, uint32_t bytes,
 	   pcm_converter_func *converter)
 {
-	enum dma_cb_status dma_status = DMA_CB_STATUS_RELOAD;
+	enum sof_dma_cb_status dma_status = SOF_DMA_CB_STATUS_RELOAD;
 	int ret;
 
 	comp_dbg(dev, "dai_dma_cb()");
@@ -258,7 +258,7 @@ dai_dma_cb(struct dai_data *dd, struct comp_dev *dev, uint32_t bytes,
 		dai_trigger_op(dd->dai, COMP_TRIGGER_STOP, dev->direction);
 
 		/* tell DMA not to reload */
-		dma_status = DMA_CB_STATUS_END;
+		dma_status = SOF_DMA_CB_STATUS_END;
 	}
 
 	/* is our pipeline handling an XRUN ? */
@@ -401,11 +401,11 @@ dai_dma_cb(struct dai_data *dd, struct comp_dev *dev, uint32_t bytes,
 }
 
 /* this is called by DMA driver every time descriptor has completed */
-static enum dma_cb_status
+static enum sof_dma_cb_status
 dai_dma_multi_endpoint_cb(struct dai_data *dd, struct comp_dev *dev, uint32_t frames,
 			  struct comp_buffer *multi_endpoint_buffer)
 {
-	enum dma_cb_status dma_status = DMA_CB_STATUS_RELOAD;
+	enum sof_dma_cb_status dma_status = SOF_DMA_CB_STATUS_RELOAD;
 	uint32_t i, bytes;
 
 	comp_dbg(dev, "dai_dma_multi_endpoint_cb()");
@@ -416,7 +416,7 @@ dai_dma_multi_endpoint_cb(struct dai_data *dd, struct comp_dev *dev, uint32_t fr
 		dai_trigger_op(dd->dai, COMP_TRIGGER_STOP, dev->direction);
 
 		/* tell DMA not to reload */
-		dma_status = DMA_CB_STATUS_END;
+		dma_status = SOF_DMA_CB_STATUS_END;
 	}
 
 	/* is our pipeline handling an XRUN ? */
@@ -477,9 +477,9 @@ int dai_common_new(struct dai_data *dd, struct comp_dev *dev,
 
 	/* request GP LP DMA with shared access privilege */
 	dir = dai_cfg->direction == SOF_IPC_STREAM_PLAYBACK ?
-		DMA_DIR_MEM_TO_DEV : DMA_DIR_DEV_TO_MEM;
+		SOF_DMA_DIR_MEM_TO_DEV : SOF_DMA_DIR_DEV_TO_MEM;
 
-	dd->dma = dma_get(dir, dd->dai->dma_caps, dd->dai->dma_dev, DMA_ACCESS_SHARED);
+	dd->dma = dma_get(dir, dd->dai->dma_caps, dd->dai->dma_dev, SOF_DMA_ACCESS_SHARED);
 	if (!dd->dma) {
 		dai_put(dd->dai);
 		comp_err(dev, "dma_get() failed to get shared access to DMA.");
@@ -730,13 +730,13 @@ static int dai_set_sg_config(struct dai_data *dd, struct comp_dev *dev, uint32_t
 	/* set up DMA configuration */
 	if (dev->direction == SOF_IPC_STREAM_PLAYBACK) {
 		dd->process = pcm_get_conversion_function(local_fmt, dma_fmt);
-		config->direction = DMA_DIR_MEM_TO_DEV;
+		config->direction = SOF_DMA_DIR_MEM_TO_DEV;
 		err = dai_get_dma_slot(dd, dev, &config->dest_dev);
 		if (err < 0)
 			return err;
 	} else {
 		dd->process = pcm_get_conversion_function(dma_fmt, local_fmt);
-		config->direction = DMA_DIR_DEV_TO_MEM;
+		config->direction = SOF_DMA_DIR_DEV_TO_MEM;
 		err = dai_get_dma_slot(dd, dev, &config->src_dev);
 		if (err < 0)
 			return err;
@@ -1123,7 +1123,7 @@ int dai_common_config_prepare(struct dai_data *dd, struct comp_dev *dev)
 	comp_dbg(dev, "channel = %d", channel);
 
 	/* do nothing for asking for channel free, for compatibility. */
-	if (channel == DMA_CHAN_INVALID) {
+	if (channel == SOF_DMA_CHAN_INVALID) {
 		comp_err(dev, "dai_config is not set yet!");
 		return -EINVAL;
 	}
@@ -1292,7 +1292,7 @@ static int dai_comp_trigger_internal(struct dai_data *dd, struct comp_dev *dev,
 		 * Only applies to non HD-DMA links as HD-DMA read/write pointer
 		 * is not reset during stop/config/start
 		 */
-		if (!(dd->dai->dma_caps & DMA_CAP_HDA))
+		if (!(dd->dai->dma_caps & SOF_DMA_CAP_HDA))
 			audio_stream_reset(&dd->dma_buffer->stream);
 
 		/* only start the DAI if we are not XRUN handling */
@@ -1543,7 +1543,7 @@ int dai_zephyr_multi_endpoint_copy(struct dai_data **dd, struct comp_dev *dev,
 	}
 
 	for (i = 0; i < num_endpoints; i++) {
-		enum dma_cb_status status;
+		enum sof_dma_cb_status status;
 		uint32_t copy_bytes;
 
 		/* trigger optional DAI_TRIGGER_COPY which prepares dai to copy */
@@ -1552,7 +1552,7 @@ int dai_zephyr_multi_endpoint_copy(struct dai_data **dd, struct comp_dev *dev,
 			comp_warn(dev, "dai trigger copy failed");
 
 		status = dai_dma_multi_endpoint_cb(dd[i], dev, frames, multi_endpoint_buffer);
-		if (status == DMA_CB_STATUS_END)
+		if (status == SOF_DMA_CB_STATUS_END)
 			dma_stop(dd[i]->chan->dma->z_dev, dd[i]->chan->index);
 
 		copy_bytes = frames * audio_stream_frame_bytes(&dd[i]->dma_buffer->stream);
@@ -1742,7 +1742,7 @@ int dai_common_copy(struct dai_data *dd, struct comp_dev *dev, pcm_converter_fun
 	if (ret < 0)
 		comp_warn(dev, "dai trigger copy failed");
 
-	if (dai_dma_cb(dd, dev, copy_bytes, converter) == DMA_CB_STATUS_END)
+	if (dai_dma_cb(dd, dev, copy_bytes, converter) == SOF_DMA_CB_STATUS_END)
 		dma_stop(dd->chan->dma->z_dev, dd->chan->index);
 
 	ret = dma_reload(dd->chan->dma->z_dev, dd->chan->index, 0, 0, copy_bytes);

src/audio/host-zephyr.c

@@ -512,7 +512,7 @@ static int create_local_elems(struct host_data *hd, struct comp_dev *dev, uint32
 	int err;
 
 	dir = direction == SOF_IPC_STREAM_PLAYBACK ?
-		DMA_DIR_HMEM_TO_LMEM : DMA_DIR_LMEM_TO_HMEM;
+		SOF_DMA_DIR_HMEM_TO_LMEM : SOF_DMA_DIR_LMEM_TO_HMEM;
 
 	/* if host buffer set we need to allocate local buffer */
 	if (hd->host.elem_array.count) {
@@ -612,9 +612,9 @@ int host_common_new(struct host_data *hd, struct comp_dev *dev,
 	hd->ipc_host = *ipc_host;
 	/* request HDA DMA with shared access privilege */
 	dir = hd->ipc_host.direction == SOF_IPC_STREAM_PLAYBACK ?
-		DMA_DIR_HMEM_TO_LMEM : DMA_DIR_LMEM_TO_HMEM;
+		SOF_DMA_DIR_HMEM_TO_LMEM : SOF_DMA_DIR_LMEM_TO_HMEM;
 
-	hd->dma = dma_get(dir, 0, DMA_DEV_HOST, DMA_ACCESS_SHARED);
+	hd->dma = dma_get(dir, 0, SOF_DMA_DEV_HOST, SOF_DMA_ACCESS_SHARED);
 	if (!hd->dma) {
 		comp_err(dev, "dma_get() returned NULL");
 		return -ENODEV;
@@ -806,11 +806,11 @@ int host_common_params(struct host_data *hd, struct comp_dev *dev,
 
 	/* determine source and sink buffer elements */
 	if (params->direction == SOF_IPC_STREAM_PLAYBACK) {
-		config->direction = DMA_DIR_HMEM_TO_LMEM;
+		config->direction = SOF_DMA_DIR_HMEM_TO_LMEM;
 		hd->source = &hd->host;
 		hd->sink = &hd->local;
 	} else {
-		config->direction = DMA_DIR_LMEM_TO_HMEM;
+		config->direction = SOF_DMA_DIR_LMEM_TO_HMEM;
 		hd->source = &hd->local;
 		hd->sink = &hd->host;
 	}
@@ -923,8 +923,8 @@ int host_common_params(struct host_data *hd, struct comp_dev *dev,
 	for (i = 0; i < config->elem_array.count; i++) {
 		sg_elem = config->elem_array.elems + i;
 
-		if (config->direction == DMA_DIR_HMEM_TO_LMEM ||
-		    config->direction == DMA_DIR_DEV_TO_MEM)
+		if (config->direction == SOF_DMA_DIR_HMEM_TO_LMEM ||
+		    config->direction == SOF_DMA_DIR_DEV_TO_MEM)
 			addr = sg_elem->dest;
 		else
 			addr = sg_elem->src;
@@ -938,12 +938,12 @@ int host_common_params(struct host_data *hd, struct comp_dev *dev,
 	dma_block_cfg->block_size = buffer_bytes;
 
 	switch (config->direction) {
-	case DMA_DIR_LMEM_TO_HMEM:
+	case SOF_DMA_DIR_LMEM_TO_HMEM:
 		dma_cfg->channel_direction = MEMORY_TO_HOST;
 		dma_block_cfg->source_address = buffer_addr;
 		dma_block_cfg->dest_address = hd->config.elem_array.elems[0].dest;
 		break;
-	case DMA_DIR_HMEM_TO_LMEM:
+	case SOF_DMA_DIR_HMEM_TO_LMEM:
 		dma_cfg->channel_direction = HOST_TO_MEMORY;
 		dma_block_cfg->dest_address = buffer_addr;
 		dma_block_cfg->source_address = hd->config.elem_array.elems[0].src;

src/drivers/generic/dummy-dma.c

@@ -348,8 +348,8 @@ static int dummy_dma_set_config(struct dma_chan_data *channel,
 
 	channel->direction = config->direction;
 
-	if (config->direction != DMA_DIR_HMEM_TO_LMEM &&
-	    config->direction != DMA_DIR_LMEM_TO_HMEM) {
+	if (config->direction != SOF_DMA_DIR_HMEM_TO_LMEM &&
+	    config->direction != SOF_DMA_DIR_LMEM_TO_HMEM) {
 		/* Shouldn't even happen though */
 		tr_err(&ddma_tr, "dummy-dmac: %d channel %d invalid direction %d",
 		       channel->dma->plat_data.id, channel->index,
@@ -490,10 +490,10 @@ static int dummy_dma_get_data_size(struct dma_chan_data *channel,
 	uint32_t size = dummy_dma_compute_avail_data(pdata);
 
 	switch (channel->direction) {
-	case DMA_DIR_HMEM_TO_LMEM:
+	case SOF_DMA_DIR_HMEM_TO_LMEM:
 		*avail = size;
 		break;
-	case DMA_DIR_LMEM_TO_HMEM:
+	case SOF_DMA_DIR_LMEM_TO_HMEM:
 		*free = size;
 		break;
 	default:

src/drivers/imx/ipc.c

@@ -207,8 +207,8 @@ int platform_ipc_init(struct ipc *ipc)
 					     PLATFORM_PAGE_TABLE_SIZE);
 	if (iipc->dh_buffer.page_table)
 		bzero(iipc->dh_buffer.page_table, PLATFORM_PAGE_TABLE_SIZE);
-	iipc->dh_buffer.dmac = dma_get(DMA_DIR_HMEM_TO_LMEM, 0, DMA_DEV_HOST,
-				       DMA_ACCESS_SHARED);
+	iipc->dh_buffer.dmac = dma_get(SOF_DMA_DIR_HMEM_TO_LMEM, 0, SOF_DMA_DEV_HOST,
+				       SOF_DMA_ACCESS_SHARED);
 	if (!iipc->dh_buffer.dmac) {
 		tr_err(&ipc_tr, "Unable to find DMA for host page table");
 		sof_panic(SOF_IPC_PANIC_IPC);

src/drivers/imx/micfil.c

@@ -319,7 +319,7 @@ const struct dai_driver micfil_driver = {
 	.type = SOF_DAI_IMX_MICFIL,
 	.uid = SOF_UUID(micfil_uuid),
 	.tctx = &micfil_tr,
-	.dma_dev = DMA_DEV_MICFIL,
+	.dma_dev = SOF_DMA_DEV_MICFIL,
 	.ops = {
 		.trigger		= micfil_trigger,
 		.set_config		= micfil_set_config,

src/drivers/imx/sai.c

@@ -560,7 +560,7 @@ const struct dai_driver sai_driver = {
 	.type = SOF_DAI_IMX_SAI,
 	.uid = SOF_UUID(sai_uuid),
 	.tctx = &sai_tr,
-	.dma_dev = DMA_DEV_SAI,
+	.dma_dev = SOF_DMA_DEV_SAI,
 	.ops = {
 		.trigger		= sai_trigger,
 		.set_config		= sai_set_config,

src/drivers/imx/sdma.c

@@ -664,20 +664,20 @@ static int sdma_read_config(struct dma_chan_data *channel,
 	uint32_t dma_dev = dd->dai->drv->dma_dev;
 
 	switch (config->direction) {
-	case DMA_DIR_MEM_TO_DEV:
+	case SOF_DMA_DIR_MEM_TO_DEV:
 		pdata->hw_event = config->dest_dev;
 		pdata->sdma_chan_type = SDMA_CHAN_TYPE_MCU2SHP;
 		pdata->fifo_paddr = config->elem_array.elems[0].dest;
 		break;
-	case DMA_DIR_DEV_TO_MEM:
+	case SOF_DMA_DIR_DEV_TO_MEM:
 		pdata->hw_event = config->src_dev;
-		if (dma_dev == DMA_DEV_MICFIL)
+		if (dma_dev == SOF_DMA_DEV_MICFIL)
 			pdata->sdma_chan_type = SDMA_CHAN_TYPE_SAI2MCU;
 		else
 			pdata->sdma_chan_type = SDMA_CHAN_TYPE_SHP2MCU;
 		pdata->fifo_paddr = config->elem_array.elems[0].src;
 		break;
-	case DMA_DIR_MEM_TO_MEM:
+	case SOF_DMA_DIR_MEM_TO_MEM:
 		pdata->sdma_chan_type = SDMA_CHAN_TYPE_AP2AP;
 		/* Fallthrough, TODO: implement to support m2m */
 	default:
@@ -687,13 +687,13 @@ static int sdma_read_config(struct dma_chan_data *channel,
 	}
 
 	for (i = 0; i < config->elem_array.count; i++) {
-		if (config->direction == DMA_DIR_MEM_TO_DEV &&
+		if (config->direction == SOF_DMA_DIR_MEM_TO_DEV &&
 		    pdata->fifo_paddr != config->elem_array.elems[i].dest) {
 			tr_err(&sdma_tr, "sdma_read_config: FIFO changes address!");
 			return -EINVAL;
 		}
 
-		if (config->direction == DMA_DIR_DEV_TO_MEM &&
+		if (config->direction == SOF_DMA_DIR_DEV_TO_MEM &&
 		    pdata->fifo_paddr != config->elem_array.elems[i].src) {
 			tr_err(&sdma_tr, "sdma_read_config: FIFO changes address!");
 			return -EINVAL;
@@ -768,15 +768,15 @@ static int sdma_prep_desc(struct dma_chan_data *channel,
 		 * is in buf_xaddr.
 		 */
 		switch (config->direction) {
-		case DMA_DIR_MEM_TO_DEV:
+		case SOF_DMA_DIR_MEM_TO_DEV:
 			bd->buf_addr = config->elem_array.elems[i].src;
 			width = config->src_width;
 			break;
-		case DMA_DIR_DEV_TO_MEM:
+		case SOF_DMA_DIR_DEV_TO_MEM:
 			bd->buf_addr = config->elem_array.elems[i].dest;
 			width = config->dest_width;
 			break;
-		case DMA_DIR_MEM_TO_MEM:
+		case SOF_DMA_DIR_MEM_TO_MEM:
 			bd->buf_addr = config->elem_array.elems[i].src;
 			bd->buf_xaddr = config->elem_array.elems[i].dest;
 			width = config->dest_width;
@@ -985,10 +985,10 @@ static int sdma_get_data_size(struct dma_chan_data *channel, uint32_t *avail,
 
 	*avail = *free = 0;
 	switch (channel->direction) {
-	case DMA_DIR_MEM_TO_DEV:
+	case SOF_DMA_DIR_MEM_TO_DEV:
 		*free = result_data;
 		break;
-	case DMA_DIR_DEV_TO_MEM:
+	case SOF_DMA_DIR_DEV_TO_MEM:
 		*avail = result_data;
 		break;
 	default:

src/ipc/ipc3/dai.c

@@ -102,7 +102,7 @@ int dai_config_dma_channel(struct dai_data *dd, struct comp_dev *dev, const void
 		/* other types of DAIs not handled for now */
 		comp_err(dev, "dai_config_dma_channel(): Unknown dai type %d",
 			 config->type);
-		channel = DMA_CHAN_INVALID;
+		channel = SOF_DMA_CHAN_INVALID;
 		break;
 	}
 
@@ -367,7 +367,7 @@ int dai_config(struct dai_data *dd, struct comp_dev *dev, struct ipc_config_dai
 	}
 #endif
 	/* do nothing for asking for channel free, for compatibility. */
-	if (dai_config_dma_channel(dd, dev, spec_config) == DMA_CHAN_INVALID)
+	if (dai_config_dma_channel(dd, dev, spec_config) == SOF_DMA_CHAN_INVALID)
 		return 0;
 
 	/* allocated dai_config if not yet */