ALSA: docs: Remove snd_dma_pci_data() usage in documentation
The macro will be removed soon later, so update the documentation to reflect that as well. Link: https://lore.kernel.org/r/20191105151856.10785-25-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
6974f8ad44
commit
b65f131b8f
|
@ -1383,7 +1383,7 @@ shows only the skeleton, how to build up the PCM interfaces.
|
||||||
/* pre-allocation of buffers */
|
/* pre-allocation of buffers */
|
||||||
/* NOTE: this may fail */
|
/* NOTE: this may fail */
|
||||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
||||||
snd_dma_pci_data(chip->pci),
|
&chip->pci->dev,
|
||||||
64*1024, 64*1024);
|
64*1024, 64*1024);
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -1470,7 +1470,7 @@ buffer. For the pre-allocation, simply call the following:
|
||||||
::
|
::
|
||||||
|
|
||||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
||||||
snd_dma_pci_data(chip->pci),
|
&chip->pci->dev,
|
||||||
64*1024, 64*1024);
|
64*1024, 64*1024);
|
||||||
|
|
||||||
It will allocate a buffer up to 64kB as default. Buffer management
|
It will allocate a buffer up to 64kB as default. Buffer management
|
||||||
|
@ -3514,7 +3514,7 @@ bus).
|
||||||
::
|
::
|
||||||
|
|
||||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
||||||
snd_dma_pci_data(pci), size, max);
|
&pci->dev, size, max);
|
||||||
|
|
||||||
where ``size`` is the byte size to be pre-allocated and the ``max`` is
|
where ``size`` is the byte size to be pre-allocated and the ``max`` is
|
||||||
the maximum size to be changed via the ``prealloc`` proc file. The
|
the maximum size to be changed via the ``prealloc`` proc file. The
|
||||||
|
@ -3700,14 +3700,14 @@ For creating the SG-buffer handler, call
|
||||||
:c:func:`snd_pcm_lib_preallocate_pages()` or
|
:c:func:`snd_pcm_lib_preallocate_pages()` or
|
||||||
:c:func:`snd_pcm_lib_preallocate_pages_for_all()` with
|
:c:func:`snd_pcm_lib_preallocate_pages_for_all()` with
|
||||||
``SNDRV_DMA_TYPE_DEV_SG`` in the PCM constructor like other PCI
|
``SNDRV_DMA_TYPE_DEV_SG`` in the PCM constructor like other PCI
|
||||||
pre-allocator. You need to pass ``snd_dma_pci_data(pci)``, where pci is
|
pre-allocator. You need to pass ``&pci->dev``, where pci is
|
||||||
the :c:type:`struct pci_dev <pci_dev>` pointer of the chip as
|
the :c:type:`struct pci_dev <pci_dev>` pointer of the chip as
|
||||||
well.
|
well.
|
||||||
|
|
||||||
::
|
::
|
||||||
|
|
||||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
|
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
|
||||||
snd_dma_pci_data(pci), size, max);
|
&pci->dev, size, max);
|
||||||
|
|
||||||
The ``struct snd_sg_buf`` instance is created as
|
The ``struct snd_sg_buf`` instance is created as
|
||||||
``substream->dma_private`` in turn. You can cast the pointer like:
|
``substream->dma_private`` in turn. You can cast the pointer like:
|
||||||
|
|
Loading…
Reference in a new issue