diff options
Diffstat (limited to 'sound/hda/ext/hdac_ext_stream.c')
| -rw-r--r-- | sound/hda/ext/hdac_ext_stream.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index 11b7119cc47e..a3ac738f1130 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -10,6 +10,8 @@ */ #include <linux/delay.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> #include <linux/slab.h> #include <sound/pcm.h> #include <sound/hda_register.h> @@ -17,6 +19,39 @@ #include <sound/compress_driver.h> /** + * snd_hdac_ext_host_stream_setup - Setup a HOST stream. + * @hext_stream: HDAudio stream to set up. + * @code_loading: Whether the stream is for PCM or code-loading. + * + * Return: Zero on success or negative error code. + */ +int snd_hdac_ext_host_stream_setup(struct hdac_ext_stream *hext_stream, bool code_loading) +{ + return hext_stream->host_setup(hdac_stream(hext_stream), code_loading); +} +EXPORT_SYMBOL_GPL(snd_hdac_ext_host_stream_setup); + +/** + * snd_hdac_apl_host_stream_setup - Setup a HOST stream following procedure + * recommended for ApolloLake devices. + * @hstream: HDAudio stream to set up. + * @code_loading: Whether the stream is for PCM or code-loading. + * + * Return: Zero on success or negative error code. + */ +static int snd_hdac_apl_host_stream_setup(struct hdac_stream *hstream, bool code_loading) +{ + struct hdac_ext_stream *hext_stream = stream_to_hdac_ext_stream(hstream); + int ret; + + snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, false); + ret = snd_hdac_stream_setup(hstream, code_loading); + snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, true); + + return ret; +} + +/** * snd_hdac_ext_stream_init - initialize each stream (aka device) * @bus: HD-audio core bus * @hext_stream: HD-audio ext core stream object to initialize @@ -55,9 +90,16 @@ static void snd_hdac_ext_stream_init(struct hdac_bus *bus, int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx, int num_stream, int dir) { + struct pci_dev *pci = to_pci_dev(bus->dev); + int (*setup_op)(struct hdac_stream *, bool); int stream_tag = 0; int i, tag, idx = start_idx; + if (pci->device == PCI_DEVICE_ID_INTEL_HDA_APL) + setup_op = snd_hdac_apl_host_stream_setup; + else + setup_op = snd_hdac_stream_setup; + for (i = 0; i < num_stream; i++) { struct hdac_ext_stream *hext_stream = kzalloc(sizeof(*hext_stream), GFP_KERNEL); @@ -66,6 +108,7 @@ int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx, tag = ++stream_tag; snd_hdac_ext_stream_init(bus, hext_stream, idx, dir, tag); idx++; + hext_stream->host_setup = setup_op; } return 0; |