Register dai ops for SoundWire manager instances.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/lkml/20230227154801.50319-4-Vijendar.Mukunda@amd.com --- drivers/soundwire/amd_manager.c | 178 ++++++++++++++++++++++++++++++ drivers/soundwire/amd_manager.h | 18 +++ include/linux/soundwire/sdw_amd.h | 18 +++ 3 files changed, 214 insertions(+)
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c index f02522d11417..f12dad6c3226 100644 --- a/drivers/soundwire/amd_manager.c +++ b/drivers/soundwire/amd_manager.c @@ -551,6 +551,178 @@ static const struct sdw_master_ops amd_sdw_ops = { .read_ping_status = amd_sdw_read_ping_status, };
+static int amd_sdw_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + struct sdw_stream_config sconfig; + struct sdw_port_config *pconfig; + int ch, dir; + int ret; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return -EIO; + + ch = params_channels(params); + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + dir = SDW_DATA_DIR_RX; + else + dir = SDW_DATA_DIR_TX; + dev_dbg(amd_manager->dev, "dir:%d dai->id:0x%x\n", dir, dai->id); + + sconfig.direction = dir; + sconfig.ch_count = ch; + sconfig.frame_rate = params_rate(params); + sconfig.type = dai_runtime->stream_type; + + sconfig.bps = snd_pcm_format_width(params_format(params)); + + /* Port configuration */ + pconfig = kzalloc(sizeof(*pconfig), GFP_KERNEL); + if (!pconfig) { + ret = -ENOMEM; + goto error; + } + + pconfig->num = dai->id; + pconfig->ch_mask = (1 << ch) - 1; + ret = sdw_stream_add_master(&amd_manager->bus, &sconfig, + pconfig, 1, dai_runtime->stream); + if (ret) + dev_err(amd_manager->dev, "add manager to stream failed:%d\n", ret); + + kfree(pconfig); +error: + return ret; +} + +static int amd_sdw_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + int ret; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return -EIO; + + ret = sdw_stream_remove_master(&amd_manager->bus, dai_runtime->stream); + if (ret < 0) + dev_err(dai->dev, "remove manager from stream %s failed: %d\n", + dai_runtime->stream->name, ret); + return ret; +} + +static int amd_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (stream) { + /* first paranoia check */ + if (dai_runtime) { + dev_err(dai->dev, "dai_runtime already allocated for dai %s\n", dai->name); + return -EINVAL; + } + + /* allocate and set dai_runtime info */ + dai_runtime = kzalloc(sizeof(*dai_runtime), GFP_KERNEL); + if (!dai_runtime) + return -ENOMEM; + + dai_runtime->stream_type = SDW_STREAM_PCM; + dai_runtime->bus = &amd_manager->bus; + dai_runtime->stream = stream; + amd_manager->dai_runtime_array[dai->id] = dai_runtime; + } else { + /* second paranoia check */ + if (!dai_runtime) { + dev_err(dai->dev, "dai_runtime not allocated for dai %s\n", dai->name); + return -EINVAL; + } + + /* for NULL stream we release allocated dai_runtime */ + kfree(dai_runtime); + amd_manager->dai_runtime_array[dai->id] = NULL; + } + return 0; +} + +static int amd_pcm_set_sdw_stream(struct snd_soc_dai *dai, void *stream, int direction) +{ + return amd_set_sdw_stream(dai, stream, direction); +} + +static void *amd_get_sdw_stream(struct snd_soc_dai *dai, int direction) +{ + struct amd_sdw_manager *amd_manager = snd_soc_dai_get_drvdata(dai); + struct sdw_amd_dai_runtime *dai_runtime; + + dai_runtime = amd_manager->dai_runtime_array[dai->id]; + if (!dai_runtime) + return ERR_PTR(-EINVAL); + + return dai_runtime->stream; +} + +static const struct snd_soc_dai_ops amd_sdw_dai_ops = { + .hw_params = amd_sdw_hw_params, + .hw_free = amd_sdw_hw_free, + .set_stream = amd_pcm_set_sdw_stream, + .get_stream = amd_get_sdw_stream, +}; + +static const struct snd_soc_component_driver amd_sdw_dai_component = { + .name = "soundwire", +}; + +static int amd_sdw_register_dais(struct amd_sdw_manager *amd_manager) +{ + struct sdw_amd_dai_runtime **dai_runtime_array; + struct snd_soc_dai_driver *dais; + struct snd_soc_pcm_stream *stream; + struct device *dev; + int i, num_dais; + + dev = amd_manager->dev; + num_dais = amd_manager->num_dout_ports + amd_manager->num_din_ports; + dais = devm_kcalloc(dev, num_dais, sizeof(*dais), GFP_KERNEL); + if (!dais) + return -ENOMEM; + + dai_runtime_array = devm_kcalloc(dev, num_dais, + sizeof(struct sdw_amd_dai_runtime *), + GFP_KERNEL); + if (!dai_runtime_array) + return -ENOMEM; + amd_manager->dai_runtime_array = dai_runtime_array; + for (i = 0; i < num_dais; i++) { + dais[i].name = devm_kasprintf(dev, GFP_KERNEL, "SDW%d Pin%d", amd_manager->instance, + i); + if (!dais[i].name) + return -ENOMEM; + if (i < amd_manager->num_dout_ports) + stream = &dais[i].playback; + else + stream = &dais[i].capture; + + stream->channels_min = 2; + stream->channels_max = 2; + stream->rates = SNDRV_PCM_RATE_48000; + stream->formats = SNDRV_PCM_FMTBIT_S16_LE; + + dais[i].ops = &amd_sdw_dai_ops; + dais[i].id = i; + } + + return devm_snd_soc_register_component(dev, &amd_sdw_dai_component, + dais, num_dais); +} + static void amd_sdw_probe_work(struct work_struct *work) { struct amd_sdw_manager *amd_manager = container_of(work, struct amd_sdw_manager, @@ -636,6 +808,12 @@ static int amd_sdw_manager_probe(struct platform_device *pdev) dev_err(dev, "Failed to register SoundWire manager(%d)\n", ret); return ret; } + ret = amd_sdw_register_dais(amd_manager); + if (ret) { + dev_err(dev, "CPU DAI registration failed\n"); + sdw_bus_master_delete(&amd_manager->bus); + return ret; + } dev_set_drvdata(dev, amd_manager); INIT_WORK(&amd_manager->probe_work, amd_sdw_probe_work); /* diff --git a/drivers/soundwire/amd_manager.h b/drivers/soundwire/amd_manager.h index f7106521b500..c92e0dee2cb1 100644 --- a/drivers/soundwire/amd_manager.h +++ b/drivers/soundwire/amd_manager.h @@ -198,6 +198,24 @@ struct sdw_manager_dp_reg { u32 lane_ctrl_ch_en_reg; };
+/* + * SDW0 Manager instance registers 6 CPU DAI (3 TX & 3 RX Ports) + * whereas SDW1 Manager Instance registers 2 CPU DAI (one TX & one RX port) + * Below is the CPU DAI <->Manager port number mapping + * i.e SDW0 Pin0 -> port number 0 -> AUDIO0 TX + * SDW0 Pin1 -> Port number 1 -> AUDIO1 TX + * SDW0 Pin2 -> Port number 2 -> AUDIO2 TX + * SDW0 Pin3 -> port number 3 -> AUDIO0 RX + * SDW0 Pin4 -> Port number 4 -> AUDIO1 RX + * SDW0 Pin5 -> Port number 5 -> AUDIO2 RX + * Whereas for SDW1 instance + * SDW1 Pin0 -> port number 0 -> AUDIO1 TX + * SDW1 Pin1 -> Port number 1 -> AUDIO1 RX + * Same mapping should be used for programming DMA controller registers in SoundWire DMA driver. + * i.e if AUDIO0 TX channel is selected then we need to use AUDIO0 TX registers for DMA programming + * in SoundWire DMA driver. + */ + static struct sdw_manager_dp_reg sdw0_manager_dp_reg[AMD_SDW0_MAX_DAI] = { {ACP_SW_AUDIO0_TX_FRAME_FORMAT, ACP_SW_AUDIO0_TX_SAMPLEINTERVAL, ACP_SW_AUDIO0_TX_HCTRL_DP0, ACP_SW_AUDIO0_TX_OFFSET_DP0, ACP_SW_AUDIO0_TX_CHANNEL_ENABLE_DP0}, diff --git a/include/linux/soundwire/sdw_amd.h b/include/linux/soundwire/sdw_amd.h index c14a291a40e8..ac537419301d 100644 --- a/include/linux/soundwire/sdw_amd.h +++ b/include/linux/soundwire/sdw_amd.h @@ -23,6 +23,21 @@ struct sdw_manager_reg_mask { u32 acp_sdw_intr_mask; };
+/** + * struct sdw_amd_dai_runtime: AMD sdw dai runtime data + * + * @name: SoundWire stream name + * @stream: stream runtime + * @bus: Bus handle + * @stream_type: Stream type + */ +struct sdw_amd_dai_runtime { + char *name; + struct sdw_stream_runtime *stream; + struct sdw_bus *bus; + enum sdw_stream_type stream_type; +}; + /** * struct amd_sdw_manager - amd manager driver context * @bus: bus handle @@ -40,6 +55,7 @@ struct sdw_manager_reg_mask { * @quirks: SoundWire manager quirks * @wake_en_mask: wake enable mask per SoundWire manager * @power_mode_mask: flag interprets amd SoundWire manager power mode + * @dai_runtime_array: dai runtime array */ struct amd_sdw_manager { struct sdw_bus bus; @@ -63,5 +79,7 @@ struct amd_sdw_manager { u32 quirks; u32 wake_en_mask; u32 power_mode_mask; + + struct sdw_amd_dai_runtime **dai_runtime_array; }; #endif