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Whenever audio data equal to the Soundwire FIFO watermark level are produced/consumed, interrupt is generated. Acknowledge the interrupt and schedule the workqueue. Signed-off-by: Vijendar Mukunda --- sound/soc/amd/ps/acp63.h | 17 ++++++++ sound/soc/amd/ps/pci-ps.c | 87 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 103 insertions(+), 1 deletion(-) diff --git a/sound/soc/amd/ps/acp63.h b/sound/soc/amd/ps/acp63.h index 7f8e1c76ba4f..f03a98a0b9e3 100644 --- a/sound/soc/amd/ps/acp63.h +++ b/sound/soc/amd/ps/acp63.h @@ -135,6 +135,20 @@ enum acp_pdev_mask { ACP63_SDW_PDM_DEV_MASK, }; +enum amd_sdw0_channel { + ACP_SDW0_AUDIO0_TX = 0, + ACP_SDW0_AUDIO1_TX, + ACP_SDW0_AUDIO2_TX, + ACP_SDW0_AUDIO0_RX, + ACP_SDW0_AUDIO1_RX, + ACP_SDW0_AUDIO2_RX, +}; + +enum amd_sdw1_channel { + ACP_SDW1_AUDIO1_TX, + ACP_SDW1_AUDIO1_RX, +}; + struct pdm_stream_instance { u16 num_pages; u16 channels; @@ -217,9 +231,12 @@ struct acp63_dev_data { struct platform_device *pdev[ACP63_DEVS]; struct mutex acp_lock; /* protect shared registers */ struct fwnode_handle *sdw_fw_node; + struct work_struct acp_sdw_dma_work; u16 pdev_mask; u16 pdev_count; u16 pdm_dev_index; + u16 sdw0_dma_intr_stat[ACP63_SDW0_DMA_MAX_STREAMS]; + u16 sdw1_dma_intr_stat[ACP63_SDW1_DMA_MAX_STREAMS]; u8 sdw_manager_count; u16 sdw0_dev_index; u16 sdw1_dev_index; diff --git a/sound/soc/amd/ps/pci-ps.c b/sound/soc/amd/ps/pci-ps.c index 6566ee14d300..ba8ec8442a6e 100644 --- a/sound/soc/amd/ps/pci-ps.c +++ b/sound/soc/amd/ps/pci-ps.c @@ -99,14 +99,44 @@ static int acp63_deinit(void __iomem *acp_base, struct device *dev) return 0; } +static void acp63_sdw_dma_workthread(struct work_struct *work) +{ + struct acp63_dev_data *adata = container_of(work, struct acp63_dev_data, + acp_sdw_dma_work); + struct sdw_dma_dev_data *sdw_dma_data; + u32 stream_index; + u16 pdev_index; + + pdev_index = adata->sdw_dma_dev_index; + sdw_dma_data = dev_get_drvdata(&adata->pdev[pdev_index]->dev); + + for (stream_index = 0; stream_index < ACP63_SDW0_DMA_MAX_STREAMS; stream_index++) { + if (adata->sdw0_dma_intr_stat[stream_index]) { + if (sdw_dma_data->sdw0_dma_stream[stream_index]) + snd_pcm_period_elapsed(sdw_dma_data->sdw0_dma_stream[stream_index]); + adata->sdw0_dma_intr_stat[stream_index] = 0; + } + } + for (stream_index = 0; stream_index < ACP63_SDW1_DMA_MAX_STREAMS; stream_index++) { + if (adata->sdw1_dma_intr_stat[stream_index]) { + if (sdw_dma_data->sdw1_dma_stream[stream_index]) + snd_pcm_period_elapsed(sdw_dma_data->sdw1_dma_stream[stream_index]); + adata->sdw1_dma_intr_stat[stream_index] = 0; + } + } +} + static irqreturn_t acp63_irq_handler(int irq, void *dev_id) { struct acp63_dev_data *adata; struct pdm_dev_data *ps_pdm_data; struct amd_sdw_manager *amd_manager; u32 ext_intr_stat, ext_intr_stat1; + u32 stream_id = 0; u16 irq_flag = 0; + u16 sdw_dma_irq_flag = 0; u16 pdev_index; + u16 index; adata = dev_id; if (!adata) @@ -147,7 +177,57 @@ static irqreturn_t acp63_irq_handler(int irq, void *dev_id) snd_pcm_period_elapsed(ps_pdm_data->capture_stream); irq_flag = 1; } - if (irq_flag) + if (ext_intr_stat & ACP_SDW_DMA_IRQ_MASK) { + for (index = ACP_AUDIO2_RX_THRESHOLD; index <= ACP_AUDIO0_TX_THRESHOLD; index++) { + if (ext_intr_stat & BIT(index)) { + writel(BIT(index), adata->acp63_base + ACP_EXTERNAL_INTR_STAT); + switch (index) { + case ACP_AUDIO0_TX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO0_TX; + break; + case ACP_AUDIO1_TX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO1_TX; + break; + case ACP_AUDIO2_TX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO2_TX; + break; + case ACP_AUDIO0_RX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO0_RX; + break; + case ACP_AUDIO1_RX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO1_RX; + break; + case ACP_AUDIO2_RX_THRESHOLD: + stream_id = ACP_SDW0_AUDIO2_RX; + break; + } + + adata->sdw0_dma_intr_stat[stream_id] = 1; + sdw_dma_irq_flag = 1; + } + } + } + + /* SDW1 BT RX */ + if (ext_intr_stat1 & BIT(ACP_P1_AUDIO1_RX_THRESHOLD)) { + writel(BIT(ACP_P1_AUDIO1_RX_THRESHOLD), + adata->acp63_base + ACP_EXTERNAL_INTR_STAT1); + adata->sdw1_dma_intr_stat[ACP_SDW1_AUDIO1_RX] = 1; + sdw_dma_irq_flag = 1; + } + + /* SDW1 BT TX*/ + if (ext_intr_stat1 & BIT(ACP_P1_AUDIO1_TX_THRESHOLD)) { + writel(BIT(ACP_P1_AUDIO1_TX_THRESHOLD), + adata->acp63_base + ACP_EXTERNAL_INTR_STAT1); + adata->sdw1_dma_intr_stat[ACP_SDW1_AUDIO1_TX] = 1; + sdw_dma_irq_flag = 1; + } + + if (sdw_dma_irq_flag) + schedule_work(&adata->acp_sdw_dma_work); + + if (irq_flag || sdw_dma_irq_flag) return IRQ_HANDLED; else return IRQ_NONE; @@ -229,6 +309,7 @@ static int get_acp63_device_config(u32 config, struct pci_dev *pci, struct acp63 sdw_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_SDW_ADDR, 0); if (sdw_dev) { acp_data->sdw_fw_node = acpi_fwnode_handle(sdw_dev); + INIT_WORK(&acp_data->acp_sdw_dma_work, acp63_sdw_dma_workthread); ret = sdw_amd_scan_controller(&pci->dev); if (!ret) is_sdw_dev = true; @@ -607,6 +688,10 @@ static void snd_acp63_remove(struct pci_dev *pci) int ret, index; adata = pci_get_drvdata(pci); + + if (adata->pdev_mask & ACP63_SDW_DEV_MASK) + cancel_work_sync(&adata->acp_sdw_dma_work); + for (index = 0; index < adata->pdev_count; index++) platform_device_unregister(adata->pdev[index]); ret = acp63_deinit(adata->acp63_base, &pci->dev);