diff options
| -rw-r--r-- | sound/soc/amd/Kconfig | 2 | ||||
| -rw-r--r-- | sound/soc/amd/Makefile | 1 | ||||
| -rw-r--r-- | sound/soc/amd/acp/Kconfig | 19 | ||||
| -rw-r--r-- | sound/soc/amd/acp/Makefile | 12 | ||||
| -rw-r--r-- | sound/soc/amd/acp/acp-i2s.c | 340 | ||||
| -rw-r--r-- | sound/soc/amd/acp/acp-platform.c | 292 | ||||
| -rw-r--r-- | sound/soc/amd/acp/amd.h | 140 | ||||
| -rw-r--r-- | sound/soc/amd/acp/chip_offset_byte.h | 76 |
8 files changed, 882 insertions, 0 deletions
diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig index d91a9399777c..f430b9a6684c 100644 --- a/sound/soc/amd/Kconfig +++ b/sound/soc/amd/Kconfig @@ -74,3 +74,5 @@ config SND_SOC_AMD_VANGOGH_MACH using NAU8821 and CS35L41 codecs. Say m if you have such a device. If unsure select "N". + +source "sound/soc/amd/acp/Kconfig" diff --git a/sound/soc/amd/Makefile b/sound/soc/amd/Makefile index 07150d26f315..9878907c89a6 100644 --- a/sound/soc/amd/Makefile +++ b/sound/soc/amd/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_SND_SOC_AMD_ACP3x) += raven/ obj-$(CONFIG_SND_SOC_AMD_RV_RT5682_MACH) += snd-soc-acp-rt5682-mach.o obj-$(CONFIG_SND_SOC_AMD_RENOIR) += renoir/ obj-$(CONFIG_SND_SOC_AMD_ACP5x) += vangogh/ +obj-$(CONFIG_SND_SOC_AMD_ACP_COMMON) += acp/ diff --git a/sound/soc/amd/acp/Kconfig b/sound/soc/amd/acp/Kconfig new file mode 100644 index 000000000000..5d782d1fc654 --- /dev/null +++ b/sound/soc/amd/acp/Kconfig @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +# This file is provided under a dual BSD/GPLv2 license. When using or +# redistributing this file, you may do so under either license. +# +# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. +# + +config SND_SOC_AMD_ACP_COMMON + tristate "AMD Audio ACP Common support" + select SND_AMD_ACP_CONFIG + help + This option enables common modules for Audio-Coprocessor i.e. ACP + IP block on AMD platforms. + +config SND_SOC_AMD_ACP_I2S + tristate + +config SND_SOC_AMD_ACP_PCM + tristate diff --git a/sound/soc/amd/acp/Makefile b/sound/soc/amd/acp/Makefile new file mode 100644 index 000000000000..b2e12659d97b --- /dev/null +++ b/sound/soc/amd/acp/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +# This file is provided under a dual BSD/GPLv2 license. When using or +# redistributing this file, you may do so under either license. +# +# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + +#common acp driver +snd-acp-pcm-objs := acp-platform.o +snd-acp-i2s-objs := acp-i2s.o + +obj-$(CONFIG_SND_SOC_AMD_ACP_PCM) += snd-acp-pcm.o +obj-$(CONFIG_SND_SOC_AMD_ACP_I2S) += snd-acp-i2s.o diff --git a/sound/soc/amd/acp/acp-i2s.c b/sound/soc/amd/acp/acp-i2s.c new file mode 100644 index 000000000000..ce9aca8dd6f5 --- /dev/null +++ b/sound/soc/amd/acp/acp-i2s.c @@ -0,0 +1,340 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. +// +// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> +// + +/* + * Generic Hardware interface for ACP Audio I2S controller + */ + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <linux/dma-mapping.h> + +#include "amd.h" + +#define DRV_NAME "acp_i2s_playcap" + +static int acp_i2s_hwparams(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct device *dev = dai->component->dev; + struct acp_dev_data *adata; + u32 val; + u32 xfer_resolution; + u32 reg_val; + + adata = snd_soc_dai_get_drvdata(dai); + + /* These values are as per Hardware Spec */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U8: + case SNDRV_PCM_FORMAT_S8: + xfer_resolution = 0x0; + break; + case SNDRV_PCM_FORMAT_S16_LE: + xfer_resolution = 0x02; + break; + case SNDRV_PCM_FORMAT_S24_LE: + xfer_resolution = 0x04; + break; + case SNDRV_PCM_FORMAT_S32_LE: + xfer_resolution = 0x05; + break; + default: + return -EINVAL; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_ITER; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_ITER; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + } else { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_IRER; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_IRER; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + } + + val = readl(adata->acp_base + reg_val); + val &= ~ACP3x_ITER_IRER_SAMP_LEN_MASK; + val = val | (xfer_resolution << 3); + writel(val, adata->acp_base + reg_val); + + return 0; +} + +static int acp_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) +{ + struct acp_stream *stream = substream->runtime->private_data; + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + u32 val, period_bytes, reg_val, ier_val, water_val, buf_size, buf_reg; + + period_bytes = frames_to_bytes(substream->runtime, substream->runtime->period_size); + buf_size = frames_to_bytes(substream->runtime, substream->runtime->buffer_size); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + stream->bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + water_val = ACP_BT_TX_INTR_WATERMARK_SIZE; + reg_val = ACP_BTTDM_ITER; + ier_val = ACP_BTTDM_IER; + buf_reg = ACP_BT_TX_RINGBUFSIZE; + break; + case I2S_SP_INSTANCE: + water_val = ACP_I2S_TX_INTR_WATERMARK_SIZE; + reg_val = ACP_I2STDM_ITER; + ier_val = ACP_I2STDM_IER; + buf_reg = ACP_I2S_TX_RINGBUFSIZE; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + } else { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + water_val = ACP_BT_RX_INTR_WATERMARK_SIZE; + reg_val = ACP_BTTDM_IRER; + ier_val = ACP_BTTDM_IER; + buf_reg = ACP_BT_RX_RINGBUFSIZE; + break; + case I2S_SP_INSTANCE: + water_val = ACP_I2S_RX_INTR_WATERMARK_SIZE; + reg_val = ACP_I2STDM_IRER; + ier_val = ACP_I2STDM_IER; + buf_reg = ACP_I2S_RX_RINGBUFSIZE; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + } + writel(period_bytes, adata->acp_base + water_val); + writel(buf_size, adata->acp_base + buf_reg); + val = readl(adata->acp_base + reg_val); + val = val | BIT(0); + writel(val, adata->acp_base + reg_val); + writel(1, adata->acp_base + ier_val); + return 0; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_ITER; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_ITER; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + + } else { + switch (dai->driver->id) { + case I2S_BT_INSTANCE: + reg_val = ACP_BTTDM_IRER; + break; + case I2S_SP_INSTANCE: + reg_val = ACP_I2STDM_IRER; + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + } + val = readl(adata->acp_base + reg_val); + val = val & ~BIT(0); + writel(val, adata->acp_base + reg_val); + + if (!(readl(adata->acp_base + ACP_BTTDM_ITER) & BIT(0)) && + !(readl(adata->acp_base + ACP_BTTDM_IRER) & BIT(0))) + writel(0, adata->acp_base + ACP_BTTDM_IER); + if (!(readl(adata->acp_base + ACP_I2STDM_ITER) & BIT(0)) && + !(readl(adata->acp_base + ACP_I2STDM_IRER) & BIT(0))) + writel(0, adata->acp_base + ACP_I2STDM_IER); + return 0; + default: + return -EINVAL; + } + + return 0; +} + +static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream = substream->runtime->private_data; + u32 reg_dma_size = 0, reg_fifo_size = 0, reg_fifo_addr = 0; + u32 phy_addr = 0, acp_fifo_addr = 0, ext_int_ctrl; + unsigned int dir = substream->stream; + + switch (dai->driver->id) { + case I2S_SP_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + reg_dma_size = ACP_I2S_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_TX_FIFOADDR; + reg_fifo_size = ACP_I2S_TX_FIFOSIZE; + + phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_I2S_TX_RINGBUFADDR); + } else { + reg_dma_size = ACP_I2S_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + SP_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_I2S_RX_FIFOADDR; + reg_fifo_size = ACP_I2S_RX_FIFOSIZE; + phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_I2S_RX_RINGBUFADDR); + } + break; + case I2S_BT_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + reg_dma_size = ACP_BT_TX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + BT_PB_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_BT_TX_FIFOADDR; + reg_fifo_size = ACP_BT_TX_FIFOSIZE; + + phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_BT_TX_RINGBUFADDR); + } else { + reg_dma_size = ACP_BT_RX_DMA_SIZE; + acp_fifo_addr = ACP_SRAM_PTE_OFFSET + + BT_CAPT_FIFO_ADDR_OFFSET; + reg_fifo_addr = ACP_BT_RX_FIFOADDR; + reg_fifo_size = ACP_BT_RX_FIFOSIZE; + + phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset; + writel(phy_addr, adata->acp_base + ACP_BT_RX_RINGBUFADDR); + } + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + + writel(DMA_SIZE, adata->acp_base + reg_dma_size); + writel(acp_fifo_addr, adata->acp_base + reg_fifo_addr); + writel(FIFO_SIZE, adata->acp_base + reg_fifo_size); + + ext_int_ctrl = readl(adata->acp_base + ACP_EXTERNAL_INTR_CNTL); + ext_int_ctrl |= BIT(I2S_RX_THRESHOLD) | BIT(BT_RX_THRESHOLD) + | BIT(I2S_TX_THRESHOLD) | BIT(BT_TX_THRESHOLD); + + writel(ext_int_ctrl, adata->acp_base + ACP_EXTERNAL_INTR_CNTL); + + return 0; +} + +static int acp_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) +{ + struct acp_stream *stream = substream->runtime->private_data; + struct device *dev = dai->component->dev; + unsigned int dir = substream->stream; + unsigned int irq_bit = 0; + + switch (dai->driver->id) { + case I2S_SP_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + irq_bit = BIT(I2S_TX_THRESHOLD); + stream->pte_offset = ACP_SRAM_SP_PB_PTE_OFFSET; + stream->fifo_offset = SP_PB_FIFO_ADDR_OFFSET; + } else { + irq_bit = BIT(I2S_RX_THRESHOLD); + stream->pte_offset = ACP_SRAM_SP_CP_PTE_OFFSET; + stream->fifo_offset = SP_CAPT_FIFO_ADDR_OFFSET; + } + break; + case I2S_BT_INSTANCE: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + irq_bit = BIT(BT_TX_THRESHOLD); + stream->pte_offset = ACP_SRAM_BT_PB_PTE_OFFSET; + stream->fifo_offset = BT_PB_FIFO_ADDR_OFFSET; + } else { + irq_bit = BIT(BT_RX_THRESHOLD); + stream->pte_offset = ACP_SRAM_BT_CP_PTE_OFFSET; + stream->fifo_offset = BT_CAPT_FIFO_ADDR_OFFSET; + } + break; + default: + dev_err(dev, "Invalid dai id %x\n", dai->driver->id); + return -EINVAL; + } + + /* Save runtime dai configuration in stream */ + stream->id = dai->driver->id + dir; + stream->dai_id = dai->driver->id; + stream->irq_bit = irq_bit; + + return 0; +} + +const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops = { + .startup = acp_i2s_startup, + .hw_params = acp_i2s_hwparams, + .prepare = acp_i2s_prepare, + .trigger = acp_i2s_trigger, +}; +EXPORT_SYMBOL_NS_GPL(asoc_acp_cpu_dai_ops, SND_SOC_ACP_COMMON); + +int asoc_acp_i2s_probe(struct snd_soc_dai *dai) +{ + struct device *dev = dai->component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + unsigned int val; + + if (!adata->acp_base) { + dev_err(dev, "I2S base is NULL\n"); + return -EINVAL; + } + + val = readl(adata->acp_base + ACP_I2S_PIN_CONFIG); + if (val != I2S_MODE) { + dev_err(dev, "I2S Mode not supported val %x\n", val); + return -EINVAL; + } + + return 0; +} +EXPORT_SYMBOL_NS_GPL(asoc_acp_i2s_probe, SND_SOC_ACP_COMMON); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_ALIAS(DRV_NAME); diff --git a/sound/soc/amd/acp/acp-platform.c b/sound/soc/amd/acp/acp-platform.c new file mode 100644 index 000000000000..e79c05276d5f --- /dev/null +++ b/sound/soc/amd/acp/acp-platform.c @@ -0,0 +1,292 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) +// +// This file is provided under a dual BSD/GPLv2 license. When using or +// redistributing this file, you may do so under either license. +// +// Copyright(c) 2021 Advanced Micro Devices, Inc. +// +// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> + +/* + * Generic interface for ACP audio blck PCM component + */ + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <linux/pm_runtime.h> +#include <linux/dma-mapping.h> + +#include "amd.h" + +#define DRV_NAME "acp_i2s_dma" + +static const struct snd_pcm_hardware acp_pcm_hardware_playback = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_96000, + .rate_min = 8000, + .rate_max = 96000, + .buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE, + .period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE, + .period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE, + .periods_min = PLAYBACK_MIN_NUM_PERIODS, + .periods_max = PLAYBACK_MAX_NUM_PERIODS, +}; + +static const struct snd_pcm_hardware acp_pcm_hardware_capture = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .rate_min = 8000, + .rate_max = 48000, + .buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE, + .period_bytes_min = CAPTURE_MIN_PERIOD_SIZE, + .period_bytes_max = CAPTURE_MAX_PERIOD_SIZE, + .periods_min = CAPTURE_MIN_NUM_PERIODS, + .periods_max = CAPTURE_MAX_NUM_PERIODS, +}; + +static irqreturn_t i2s_irq_handler(int irq, void *data) +{ + struct acp_dev_data *adata = data; + struct acp_stream *stream; + u16 i2s_flag = 0; + u32 val, i; + + if (!adata) + return IRQ_NONE; + + val = readl(adata->acp_base + ACP_EXTERNAL_INTR_STAT); + + for (i = 0; i < ACP_MAX_STREAM; i++) { + stream = adata->stream[i]; + if (stream && (val & stream->irq_bit)) { + writel(stream->irq_bit, adata->acp_base + ACP_EXTERNAL_INTR_STAT); + snd_pcm_period_elapsed(stream->substream); + i2s_flag = 1; + break; + } + } + + if (i2s_flag) + return IRQ_HANDLED; + + return IRQ_NONE; +} + +static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream) +{ + u32 pte_reg, pte_size, reg_val; + + /* Use ATU base Group5 */ + pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_5; + pte_size = ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5; + stream->reg_offset = 0x02000000; + + /* Group Enable */ + reg_val = ACP_SRAM_PTE_OFFSET; + writel(reg_val | BIT(31), adata->acp_base + pte_reg); + writel(PAGE_SIZE_4K_ENABLE, adata->acp_base + pte_size); +} + +static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size) +{ + struct acp_stream *stream = adata->stream[cpu_id]; + struct snd_pcm_substream *substream = stream->substream; + dma_addr_t addr = substream->dma_buffer.addr; + int num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT); + u32 low, high, val; + u16 page_idx; + + val = stream->pte_offset; + + for (page_idx = 0; page_idx < num_pages; page_idx++) { + /* Load the low address of page int ACP SRAM through SRBM */ + low = lower_32_bits(addr); + high = upper_32_bits(addr); + writel(low, adata->acp_base + ACP_SCRATCH_REG_0 + val); + high |= BIT(31); + writel(high, adata->acp_base + ACP_SCRATCH_REG_0 + val + 4); + + /* Move to next physically contiguous page */ + val += 8; + addr += PAGE_SIZE; + } +} + +static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + struct snd_pcm_runtime *runtime = substream->runtime; + struct device *dev = component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream; + int stream_id = cpu_dai->driver->id * 2 + substream->stream; + int ret; + + stream = kzalloc(sizeof(*stream), GFP_KERNEL); + if (!stream) + return -ENOMEM; + + stream->substream = substream; + adata->stream[stream_id] = stream; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + runtime->hw = acp_pcm_hardware_playback; + else + runtime->hw = acp_pcm_hardware_capture; + + ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) { + dev_err(component->dev, "set integer constraint failed\n"); + kfree(stream); + return ret; + } + runtime->private_data = stream; + + writel(1, adata->acp_base + ACP_EXTERNAL_INTR_ENB); + + return ret; +} + +static int acp_dma_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream); + struct acp_dev_data *adata = snd_soc_component_get_drvdata(component); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + struct acp_stream *stream = substream->runtime->private_data; + int stream_id = cpu_dai->driver->id * 2 + substream->stream; + u64 size = params_buffer_bytes(params); + + /* Configure ACP DMA block with params */ + config_pte_for_stream(adata, stream); + config_acp_dma(adata, stream_id, size); + + return 0; +} + +static snd_pcm_uframes_t acp_dma_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct device *dev = component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream = substream->runtime->private_data; + u32 pos, buffersize; + u64 bytescount; + + buffersize = frames_to_bytes(substream->runtime, + substream->runtime->buffer_size); + + bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream); + + if (bytescount > stream->bytescount) + bytescount -= stream->bytescount; + + pos = do_div(bytescount, buffersize); + + return bytes_to_frames(substream->runtime, pos); +} + +static int acp_dma_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + struct device *parent = component->dev->parent; + + snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, + parent, MIN_BUFFER, MAX_BUFFER); + return 0; +} + +static int acp_dma_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + return snd_pcm_lib_default_mmap(substream, vma); +} + +static int acp_dma_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + struct device *dev = component->dev; + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct acp_stream *stream; + int stream_id = cpu_dai->driver->id * 2 + substream->stream; + + stream = adata->stream[stream_id]; + kfree(stream); + adata->stream[stream_id] = NULL; + + return 0; +} + +static const struct snd_soc_component_driver acp_pcm_component = { + .name = DRV_NAME, + .open = acp_dma_open, + .close = acp_dma_close, + .hw_params = acp_dma_hw_params, + .pointer = acp_dma_pointer, + .mmap = acp_dma_mmap, + .pcm_construct = acp_dma_new, +}; + +int acp_platform_register(struct device *dev) +{ + struct acp_dev_data *adata = dev_get_drvdata(dev); + struct snd_soc_dai_driver; + unsigned int status; + + status = devm_request_irq(dev, adata->i2s_irq, i2s_irq_handler, + IRQF_SHARED, "ACP_I2S_IRQ", adata); + if (status) { + dev_err(dev, "ACP I2S IRQ request failed\n"); + return status; + } + + status = devm_snd_soc_register_component(dev, &acp_pcm_component, + adata->dai_driver, + adata->num_dai); + if (status) { + dev_err(dev, "Fail to register acp i2s component\n"); + return status; + } + return 0; +} +EXPORT_SYMBOL_NS_GPL(acp_platform_register, SND_SOC_ACP_COMMON); + +int acp_platform_unregister(struct device *dev) +{ + struct acp_dev_data *adata = dev_get_drvdata(dev); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(acp_platform_unregister, SND_SOC_ACP_COMMON); + +MODULE_DESCRIPTION("AMD ACP PCM Driver"); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_ALIAS(DRV_NAME); diff --git a/sound/soc/amd/acp/amd.h b/sound/soc/amd/acp/amd.h new file mode 100644 index 000000000000..ecb53285526c --- /dev/null +++ b/sound/soc/amd/acp/amd.h @@ -0,0 +1,140 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + * + * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> + */ + +#ifndef __AMD_ACP_H +#define __AMD_ACP_H + +#include <sound/pcm.h> +#include <sound/soc-acpi.h> +#include "chip_offset_byte.h" + +#define I2S_SP_INSTANCE 0x00 +#define I2S_BT_INSTANCE 0x01 + +#define MEM_WINDOW_START 0x4000000 + +#define ACP_I2S_REG_START 0x1242400 +#define ACP_I2S_REG_END 0x1242810 +#define ACP3x_I2STDM_REG_START 0x1242400 +#define ACP3x_I2STDM_REG_END 0x1242410 +#define ACP3x_BT_TDM_REG_START 0x1242800 +#define ACP3x_BT_TDM_REG_END 0x1242810 +#define I2S_MODE 0x04 +#define I2S_RX_THRESHOLD 27 +#define I2S_TX_THRESHOLD 28 +#define BT_TX_THRESHOLD 26 +#define BT_RX_THRESHOLD 25 + +#define ACP_SRAM_PTE_OFFSET 0x02052800 + +#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 +#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 +#define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 +#define ACP_SRAM_BT_CP_PTE_OFFSET 0x300 +#define PAGE_SIZE_4K_ENABLE 0x2 + +#define I2S_SP_TX_MEM_WINDOW_START 0x4000000 +#define I2S_SP_RX_MEM_WINDOW_START 0x4020000 +#define I2S_BT_TX_MEM_WINDOW_START 0x4040000 +#define I2S_BT_RX_MEM_WINDOW_START 0x4060000 + +#define SP_PB_FIFO_ADDR_OFFSET 0x500 +#define SP_CAPT_FIFO_ADDR_OFFSET 0x700 +#define BT_PB_FIFO_ADDR_OFFSET 0x900 +#define BT_CAPT_FIFO_ADDR_OFFSET 0xB00 +#define PLAYBACK_MIN_NUM_PERIODS 2 +#define PLAYBACK_MAX_NUM_PERIODS 8 +#define PLAYBACK_MAX_PERIOD_SIZE 8192 +#define PLAYBACK_MIN_PERIOD_SIZE 1024 +#define CAPTURE_MIN_NUM_PERIODS 2 +#define CAPTURE_MAX_NUM_PERIODS 8 +#define CAPTURE_MAX_PERIOD_SIZE 8192 +#define CAPTURE_MIN_PERIOD_SIZE 1024 + +#define MAX_BUFFER 65536 +#define MIN_BUFFER MAX_BUFFER +#define FIFO_SIZE 0x100 +#define DMA_SIZE 0x40 +#define FRM_LEN 0x100 + +#define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 + +#define ACP_MAX_STREAM 6 + +struct acp_stream { + struct snd_pcm_substream *substream; + int irq_bit; + int dai_id; + int id; + u64 bytescount; + u32 reg_offset; + u32 pte_offset; + u32 fifo_offset; +}; + +struct acp_dev_data { + char *name; + struct device *dev; + void __iomem *acp_base; + unsigned int i2s_irq; + + /* SOC specific dais */ + struct snd_soc_dai_driver *dai_driver; + int num_dai; + + struct acp_stream *stream[ACP_MAX_STREAM]; +}; + +extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; + +int asoc_acp_i2s_probe(struct snd_soc_dai *dai); +int acp_platform_register(struct device *dev); +int acp_platform_unregister(struct device *dev); + +static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) +{ + u64 byte_count, low = 0, high = 0; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + switch (dai_id) { + case I2S_BT_INSTANCE: + high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW); + break; + case I2S_SP_INSTANCE: + high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + return -EINVAL; + } + } else { + switch (dai_id) { + case I2S_BT_INSTANCE: + high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW); + break; + case I2S_SP_INSTANCE: + high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH); + low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW); + break; + default: + dev_err(adata->dev, "Invalid dai id %x\n", dai_id); + return -EINVAL; + } + } + /* Get 64 bit value from two 32 bit registers */ + byte_count = (high << 32) | low; + + return byte_count; +} + +#endif diff --git a/sound/soc/amd/acp/chip_offset_byte.h b/sound/soc/amd/acp/chip_offset_byte.h new file mode 100644 index 000000000000..c7f77e975dc7 --- /dev/null +++ b/sound/soc/amd/acp/chip_offset_byte.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved. + * + * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> + */ + +#ifndef _ACP_IP_OFFSET_HEADER +#define _ACP_IP_OFFSET_HEADER + +#define ACPAXI2AXI_ATU_CTRL 0xC40 +#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5 0xC20 +#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_5 0xC24 +#define ACP_EXTERNAL_INTR_ENB 0x1800 +#define ACP_EXTERNAL_INTR_CNTL 0x1804 +#define ACP_EXTERNAL_INTR_STAT 0x1808 +#define ACP_I2S_PIN_CONFIG 0x1400 +#define ACP_SCRATCH_REG_0 0x12800 + +/* Registers from ACP_AUDIO_BUFFERS block */ + +#define ACP_I2S_RX_RINGBUFADDR 0x2000 +#define ACP_I2S_RX_RINGBUFSIZE 0x2004 +#define ACP_I2S_RX_LINKPOSITIONCNTR 0x2008 +#define ACP_I2S_RX_FIFOADDR 0x200C +#define ACP_I2S_RX_FIFOSIZE 0x2010 +#define ACP_I2S_RX_DMA_SIZE 0x2014 +#define ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH 0x2018 +#define ACP_I2S_RX_LINEARPOSITIONCNTR_LOW 0x201C +#define ACP_I2S_RX_INTR_WATERMARK_SIZE 0x2020 +#define ACP_I2S_TX_RINGBUFADDR 0x2024 +#define ACP_I2S_TX_RINGBUFSIZE 0x2028 +#define ACP_I2S_TX_LINKPOSITIONCNTR 0x202C +#define ACP_I2S_TX_FIFOADDR 0x2030 +#define ACP_I2S_TX_FIFOSIZE 0x2034 +#define ACP_I2S_TX_DMA_SIZE 0x2038 +#define ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH 0x203C +#define ACP_I2S_TX_LINEARPOSITIONCNTR_LOW 0x2040 +#define ACP_I2S_TX_INTR_WATERMARK_SIZE 0x2044 +#define ACP_BT_RX_RINGBUFADDR 0x2048 +#define ACP_BT_RX_RINGBUFSIZE 0x204C +#define ACP_BT_RX_LINKPOSITIONCNTR 0x2050 +#define ACP_BT_RX_FIFOADDR 0x2054 +#define ACP_BT_RX_FIFOSIZE 0x2058 +#define ACP_BT_RX_DMA_SIZE 0x205C +#define ACP_BT_RX_LINEARPOSITIONCNTR_HIGH 0x2060 +#define ACP_BT_RX_LINEARPOSITIONCNTR_LOW 0x2064 +#define ACP_BT_RX_INTR_WATERMARK_SIZE 0x2068 +#define ACP_BT_TX_RINGBUFADDR 0x206C +#define ACP_BT_TX_RINGBUFSIZE 0x2070 +#define ACP_BT_TX_LINKPOSITIONCNTR 0x2074 +#define ACP_BT_TX_FIFOADDR 0x2078 +#define ACP_BT_TX_FIFOSIZE 0x207C +#define ACP_BT_TX_DMA_SIZE 0x2080 +#define ACP_BT_TX_LINEARPOSITIONCNTR_HIGH 0x2084 +#define ACP_BT_TX_LINEARPOSITIONCNTR_LOW 0x2088 +#define ACP_BT_TX_INTR_WATERMARK_SIZE 0x208C + +#define ACP_I2STDM_IER 0x2400 +#define ACP_I2STDM_IRER 0x2404 +#define ACP_I2STDM_RXFRMT 0x2408 +#define ACP_I2STDM_ITER 0x240C +#define ACP_I2STDM_TXFRMT 0x2410 + +/* Registers from ACP_BT_TDM block */ + +#define ACP_BTTDM_IER 0x2800 +#define ACP_BTTDM_IRER 0x2804 +#define ACP_BTTDM_RXFRMT 0x2808 +#define ACP_BTTDM_ITER 0x280C +#define ACP_BTTDM_TXFRMT 0x2810 + +#endif |