Upadate lpass cpu and platform driver to support audio over codec dma in ADSP bypass use case.
Signed-off-by: Venkata Prasad Potturu potturu@codeaurora.org Signed-off-by: Srinivasa Rao Mandadapu srivasam@codeaurora.org --- sound/soc/qcom/lpass-cpu.c | 312 ++++++++++++++++++++++++- sound/soc/qcom/lpass-platform.c | 499 +++++++++++++++++++++++++++++++++++++--- 2 files changed, 773 insertions(+), 38 deletions(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 3bd9eb3..c8dec52 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -798,6 +798,251 @@ static struct regmap_config lpass_hdmi_regmap_config = { .cache_type = REGCACHE_FLAT, };
+static bool lpass_rxtx_regmap_writeable(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->rxtx_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_RXTX_IRQEN_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + } + + for (i = 0; i < v->rxtx_rdma_channels; ++i) { + if (reg == LPAIF_CDC_RDMACTL_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMABASE_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMABUFF_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMAPER_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMA_INTF_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + } + + for (i = 0; i < v->rxtx_wrdma_channels; ++i) { + if (reg == LPAIF_CDC_WRDMACTL_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMABASE_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMABUFF_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMAPER_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMA_INTF_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + } + + return false; +} + +static bool lpass_rxtx_regmap_readable(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->rxtx_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_RXTX_IRQEN_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + } + + for (i = 0; i < v->rxtx_rdma_channels; ++i) { + if (reg == LPAIF_CDC_RDMACTL_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMABASE_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMABUFF_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMACURR_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMAPER_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_CDC_RDMA_INTF_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + } + + for (i = 0; i < v->rxtx_wrdma_channels; ++i) { + if (reg == LPAIF_CDC_WRDMACTL_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMABASE_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMABUFF_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMACURR_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMAPER_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + if (reg == LPAIF_CDC_WRDMA_INTF_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + } + + return false; +} + +static bool lpass_rxtx_regmap_volatile(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->rxtx_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + } + + for (i = 0; i < v->rxtx_rdma_channels; ++i) + if (reg == LPAIF_CDC_RDMACURR_REG(v, i, LPASS_CDC_DMA_RX0)) + return true; + + for (i = 0; i < v->rxtx_wrdma_channels; ++i) + if (reg == LPAIF_CDC_WRDMACURR_REG(v, i + v->rxtx_wrdma_channel_start, + LPASS_CDC_DMA_TX3)) + return true; + + return false; +} + +static bool lpass_va_regmap_writeable(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->va_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_RXTX_IRQEN_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + } + + for (i = 0; i < v->va_wrdma_channels; ++i) { + if (reg == LPAIF_CDC_WRDMACTL_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMABASE_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMABUFF_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMAPER_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMA_INTF_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + } + + return false; +} + +static bool lpass_va_regmap_readable(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->va_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_RXTX_IRQEN_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + } + + for (i = 0; i < v->va_wrdma_channels; ++i) { + if (reg == LPAIF_CDC_WRDMACTL_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMABASE_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMABUFF_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMACURR_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMAPER_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_CDC_WRDMA_INTF_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + } + + return false; +} + +static bool lpass_va_regmap_volatile(struct device *dev, unsigned int reg) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + int i; + + for (i = 0; i < v->va_irq_ports; ++i) { + if (reg == LPAIF_RXTX_IRQCLEAR_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + if (reg == LPAIF_RXTX_IRQSTAT_REG(v, i, LPASS_CDC_DMA_VA_TX0)) + return true; + } + + for (i = 0; i < v->va_wrdma_channels; ++i) { + if (reg == LPAIF_CDC_WRDMACURR_REG(v, i + v->va_wrdma_channel_start, + LPASS_CDC_DMA_VA_TX0)) + return true; + } + + return false; +} + +static struct regmap_config lpass_rxtx_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .writeable_reg = lpass_rxtx_regmap_writeable, + .readable_reg = lpass_rxtx_regmap_readable, + .volatile_reg = lpass_rxtx_regmap_volatile, + .cache_type = REGCACHE_FLAT, +}; + +static struct regmap_config lpass_va_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .writeable_reg = lpass_va_regmap_writeable, + .readable_reg = lpass_va_regmap_readable, + .volatile_reg = lpass_va_regmap_volatile, + .cache_type = REGCACHE_FLAT, +}; + static unsigned int of_lpass_cpu_parse_sd_lines(struct device *dev, struct device_node *node, const char *name) @@ -837,6 +1082,17 @@ static unsigned int of_lpass_cpu_parse_sd_lines(struct device *dev, } }
+static bool is_cdc_dma_port(int dai_id) +{ + switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + case LPASS_CDC_DMA_VA_TX0: + return true; + default: + return false; + } +} static void of_lpass_cpu_parse_dai_data(struct device *dev, struct lpass_data *data) { @@ -857,7 +1113,9 @@ static void of_lpass_cpu_parse_dai_data(struct device *dev, } if (id == LPASS_DP_RX) { data->hdmi_port_enable = 1; - } else { + } else if (is_cdc_dma_port(id)) + data->wcd_codec_enable = 1; + else { data->mi2s_playback_sd_mode[id] = of_lpass_cpu_parse_sd_lines(dev, node, "qcom,playback-sd-lines"); @@ -897,6 +1155,53 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
of_lpass_cpu_parse_dai_data(dev, drvdata);
+ drvdata->num_clks = variant->num_clks; + if (drvdata->wcd_codec_enable) { + drvdata->rxtx_lpaif = + devm_platform_ioremap_resource_byname(pdev, "lpass-rxtx-lpaif"); + if (IS_ERR(drvdata->rxtx_lpaif)) + return PTR_ERR(drvdata->rxtx_lpaif); + + drvdata->va_lpaif = devm_platform_ioremap_resource_byname(pdev, "lpass-va-lpaif"); + if (IS_ERR(drvdata->va_lpaif)) + return PTR_ERR(drvdata->va_lpaif); + + lpass_rxtx_regmap_config.max_register = LPAIF_CDC_WRDMAPER_REG(variant, + variant->rxtx_wrdma_channels + + variant->rxtx_wrdma_channel_start, LPASS_CDC_DMA_TX3); + + drvdata->rxtx_lpaif_map = devm_regmap_init_mmio(dev, drvdata->rxtx_lpaif, + &lpass_rxtx_regmap_config); + if (IS_ERR(drvdata->rxtx_lpaif_map)) { + dev_err(dev, "error initializing regmap: %ld\n", + PTR_ERR(drvdata->rxtx_lpaif_map)); + return PTR_ERR(drvdata->rxtx_lpaif_map); + } + lpass_va_regmap_config.max_register = LPAIF_CDC_WRDMAPER_REG(variant, + variant->va_wrdma_channels + + variant->va_wrdma_channel_start, LPASS_CDC_DMA_VA_TX0); + + drvdata->va_lpaif_map = devm_regmap_init_mmio(dev, drvdata->va_lpaif, + &lpass_va_regmap_config); + if (IS_ERR(drvdata->va_lpaif_map)) { + dev_err(dev, "error initializing regmap: %ld\n", + PTR_ERR(drvdata->va_lpaif_map)); + return PTR_ERR(drvdata->va_lpaif_map); + } + drvdata->cdc_num_clks = variant->cdc_dma_num_clks; + for (i = 0; i < variant->cdc_dma_num_clks; i++) { + drvdata->cdc_dma_clks[i] = devm_clk_get(dev, + variant->cdc_dma_clk_names[i]); + if (IS_ERR(drvdata->cdc_dma_clks[i])) { + dev_err(dev, + "error getting %s: %ld\n", + variant->cdc_dma_clk_names[i], + PTR_ERR(drvdata->cdc_dma_clks[i])); + return PTR_ERR(drvdata->cdc_dma_clks[i]); + } + } + } + drvdata->lpaif = devm_platform_ioremap_resource_byname(pdev, "lpass-lpaif"); if (IS_ERR(drvdata->lpaif)) return PTR_ERR(drvdata->lpaif); @@ -939,7 +1244,10 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
for (i = 0; i < variant->num_dai; i++) { dai_id = variant->dai_driver[i].id; - if (dai_id == LPASS_DP_RX) + if (dai_id == LPASS_DP_RX || + dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) continue;
drvdata->mi2s_osr_clk[dai_id] = devm_clk_get_optional(dev, diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index a000041..8f79bd3 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -20,6 +20,10 @@
#define LPASS_PLATFORM_BUFFER_SIZE (24 * 2 * 1024) #define LPASS_PLATFORM_PERIODS 2 +#define LPSAS_RXTX_CDC_DMA_LPM_ADDR 0x3260000 +#define LPSAS_RXTX_CDC_DMA_LPM_BUFF_SIZE (24 * 1024) +#define LPSAS_VA_CDC_DMA_LPM_ADDR 0x336C000 +#define LPSAS_VA_CDC_DMA_LPM_BUFF_SIZE (12 * 1024)
static const struct snd_pcm_hardware lpass_platform_pcm_hardware = { .info = SNDRV_PCM_INFO_MMAP | @@ -45,6 +49,103 @@ static const struct snd_pcm_hardware lpass_platform_pcm_hardware = { .fifo_size = 0, };
+static const struct snd_pcm_hardware lpass_platform_rxtx_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16 | + SNDRV_PCM_FMTBIT_S24 | + SNDRV_PCM_FMTBIT_S32, + .rates = SNDRV_PCM_RATE_8000_192000, + .rate_min = 8000, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 8, + .buffer_bytes_max = LPSAS_RXTX_CDC_DMA_LPM_BUFF_SIZE, + .period_bytes_max = LPSAS_RXTX_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .period_bytes_min = LPSAS_RXTX_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .periods_min = LPASS_PLATFORM_PERIODS, + .periods_max = LPASS_PLATFORM_PERIODS, + .fifo_size = 0, +}; + +static const struct snd_pcm_hardware lpass_platform_va_hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME, + .formats = SNDRV_PCM_FMTBIT_S16 | + SNDRV_PCM_FMTBIT_S24 | + SNDRV_PCM_FMTBIT_S32, + .rates = SNDRV_PCM_RATE_8000_192000, + .rate_min = 8000, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 8, + .buffer_bytes_max = LPSAS_VA_CDC_DMA_LPM_BUFF_SIZE, + .period_bytes_max = LPSAS_VA_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .period_bytes_min = LPSAS_VA_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .periods_min = LPASS_PLATFORM_PERIODS, + .periods_max = LPASS_PLATFORM_PERIODS, + .fifo_size = 0, +}; + +static int lpass_platform_alloc_rxtx_dmactl_fields(struct device *dev, + struct regmap *map) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + struct lpaif_dmactl *rd_dmactl, *wr_dmactl; + int rval; + + drvdata->rxtx_rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), + GFP_KERNEL); + if (drvdata->rxtx_rd_dmactl == NULL) + return -ENOMEM; + + drvdata->rxtx_wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), + GFP_KERNEL); + if (drvdata->rxtx_wr_dmactl == NULL) + return -ENOMEM; + + rd_dmactl = drvdata->rxtx_rd_dmactl; + wr_dmactl = drvdata->rxtx_wr_dmactl; + + rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf, + &v->rxtx_rdma_intf, 15); + if (rval) + return rval; + + return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf, + &v->rxtx_wrdma_intf, 15); +} + +static int lpass_platform_alloc_va_dmactl_fields(struct device *dev, + struct regmap *map) +{ + struct lpass_data *drvdata = dev_get_drvdata(dev); + struct lpass_variant *v = drvdata->variant; + struct lpaif_dmactl *wr_dmactl; + + drvdata->va_wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), + GFP_KERNEL); + if (drvdata->va_wr_dmactl == NULL) + return -ENOMEM; + + wr_dmactl = drvdata->va_wr_dmactl; + + return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf, + &v->va_wrdma_intf, 15); +} + + static int lpass_platform_alloc_dmactl_fields(struct device *dev, struct regmap *map) { @@ -126,24 +227,44 @@ static int lpass_platform_pcmops_open(struct snd_soc_component *component, if (cpu_dai->driver->id == LPASS_DP_RX) { map = drvdata->hdmiif_map; drvdata->hdmi_substream[dma_ch] = substream; + } else if (dai_id == LPASS_CDC_DMA_RX0 || dai_id == LPASS_CDC_DMA_TX3) { + map = drvdata->rxtx_lpaif_map; + drvdata->rxtx_substream[dma_ch] = substream; + } else if (dai_id == LPASS_CDC_DMA_VA_TX0) { + map = drvdata->va_lpaif_map; + drvdata->va_substream[dma_ch] = substream; } else { map = drvdata->lpaif_map; drvdata->substream[dma_ch] = substream; } data->dma_ch = dma_ch; - ret = regmap_write(map, - LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0); - if (ret) { - dev_err(soc_runtime->dev, - "error writing to rdmactl reg: %d\n", ret); - return ret; + if (!(dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0)) { + ret = regmap_write(map, LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg: %d\n", ret); + return ret; + } } - snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware);
- runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max; - - ret = snd_pcm_hw_constraint_integer(runtime, - SNDRV_PCM_HW_PARAM_PERIODS); + switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + snd_soc_set_runtime_hwparams(substream, &lpass_platform_rxtx_hardware); + runtime->dma_bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + break; + case LPASS_CDC_DMA_VA_TX0: + snd_soc_set_runtime_hwparams(substream, &lpass_platform_va_hardware); + runtime->dma_bytes = lpass_platform_va_hardware.buffer_bytes_max; + break; + default: + snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware); + runtime->dma_bytes = lpass_platform_pcm_hardware.buffer_bytes_max; + break; + } + ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); if (ret < 0) { kfree(data); dev_err(soc_runtime->dev, "setting constraints failed: %d\n", @@ -170,6 +291,10 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component, data = runtime->private_data; if (dai_id == LPASS_DP_RX) drvdata->hdmi_substream[data->dma_ch] = NULL; + else if (dai_id == LPASS_CDC_DMA_RX0 || dai_id == LPASS_CDC_DMA_TX3) + drvdata->rxtx_substream[data->dma_ch] = NULL; + else if (dai_id == LPASS_CDC_DMA_VA_TX0) + drvdata->va_substream[data->dma_ch] = NULL; else drvdata->substream[data->dma_ch] = NULL; if (v->free_dma_channel) @@ -202,12 +327,22 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component, id = pcm_data->dma_ch; if (dai_id == LPASS_DP_RX) dmactl = drvdata->hdmi_rd_dmactl; + else if (dai_id == LPASS_CDC_DMA_RX0) + dmactl = drvdata->rxtx_rd_dmactl; else dmactl = drvdata->rd_dmactl;
} else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; + if (dai_id == LPASS_CDC_DMA_TX3) { + dmactl = drvdata->rxtx_wr_dmactl; + id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start; + } else if (dai_id == LPASS_CDC_DMA_VA_TX0) { + dmactl = drvdata->va_wr_dmactl; + id = pcm_data->dma_ch - v->va_wrdma_channel_start; + } else { + dmactl = drvdata->wr_dmactl; + id = pcm_data->dma_ch - v->wrdma_channel_start; + } }
bitwidth = snd_pcm_format_width(format); @@ -230,6 +365,10 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component, }
switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + case LPASS_CDC_DMA_VA_TX0: + break; case LPASS_DP_RX: ret = regmap_fields_write(dmactl->burst8, id, LPAIF_DMACTL_BURSTEN_INCR4); @@ -354,9 +493,12 @@ static int lpass_platform_pcmops_hw_free(struct snd_soc_component *component,
if (dai_id == LPASS_DP_RX) map = drvdata->hdmiif_map; + else if (dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) + return 0; else map = drvdata->lpaif_map; - reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id); ret = regmap_write(map, reg, 0); if (ret) @@ -387,6 +529,9 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component, if (dai_id == LPASS_DP_RX) { dmactl = drvdata->hdmi_rd_dmactl; map = drvdata->hdmiif_map; + } else if (dai_id == LPASS_CDC_DMA_RX0) { + map = drvdata->rxtx_lpaif_map; + dmactl = drvdata->rxtx_rd_dmactl; } else { dmactl = drvdata->rd_dmactl; map = drvdata->lpaif_map; @@ -394,9 +539,19 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
id = pcm_data->dma_ch; } else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; - map = drvdata->lpaif_map; + if (dai_id == LPASS_CDC_DMA_TX3) { + dmactl = drvdata->rxtx_wr_dmactl; + map = drvdata->rxtx_lpaif_map; + id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start; + } else if (dai_id == LPASS_CDC_DMA_VA_TX0) { + dmactl = drvdata->va_wr_dmactl; + map = drvdata->va_lpaif_map; + id = pcm_data->dma_ch - v->va_wrdma_channel_start; + } else { + dmactl = drvdata->wr_dmactl; + id = pcm_data->dma_ch - v->wrdma_channel_start; + map = drvdata->lpaif_map; + } }
ret = regmap_write(map, LPAIF_DMABASE_REG(v, ch, dir, dai_id), @@ -423,6 +578,16 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component, return ret; }
+ if (dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) { + ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8); + if (ret) { + dev_err(soc_runtime->dev, "error writing fifowm field to dmactl reg: %d, id: %d\n", + ret, id); + return ret; + } + } ret = regmap_fields_write(dmactl->enable, id, LPAIF_DMACTL_ENABLE_ON); if (ret) { dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n", @@ -457,14 +622,27 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, if (dai_id == LPASS_DP_RX) { dmactl = drvdata->hdmi_rd_dmactl; map = drvdata->hdmiif_map; + } else if (dai_id == LPASS_CDC_DMA_RX0) { + map = drvdata->rxtx_lpaif_map; + dmactl = drvdata->rxtx_rd_dmactl; } else { dmactl = drvdata->rd_dmactl; map = drvdata->lpaif_map; } } else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; - map = drvdata->lpaif_map; + if (dai_id == LPASS_CDC_DMA_TX3) { + dmactl = drvdata->rxtx_wr_dmactl; + map = drvdata->rxtx_lpaif_map; + id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start; + } else if (dai_id == LPASS_CDC_DMA_VA_TX0) { + dmactl = drvdata->va_wr_dmactl; + map = drvdata->va_lpaif_map; + id = pcm_data->dma_ch - v->va_wrdma_channel_start; + } else { + dmactl = drvdata->wr_dmactl; + id = pcm_data->dma_ch - v->wrdma_channel_start; + map = drvdata->lpaif_map; + } }
switch (cmd) { @@ -479,6 +657,24 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, return ret; } switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + case LPASS_CDC_DMA_VA_TX0: + ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg field: %d\n", ret); + return ret; + } + map = (dai_id == LPASS_CDC_DMA_VA_TX0) ? + drvdata->va_lpaif_map : drvdata->rxtx_lpaif_map; + reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST, dai_id); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST, dai_id); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; case LPASS_DP_RX: ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_ON); @@ -543,6 +739,26 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, return ret; } switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + case LPASS_CDC_DMA_VA_TX0: + ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg field: %d\n", ret); + return ret; + } + map = (dai_id == LPASS_CDC_DMA_VA_TX0) ? + drvdata->va_lpaif_map : drvdata->rxtx_lpaif_map; + + reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST, dai_id); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST, dai_id); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + + break; case LPASS_DP_RX: ret = regmap_fields_write(dmactl->dyncclk, id, LPAIF_DMACTL_DYNCLK_OFF); @@ -601,6 +817,12 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer(
if (dai_id == LPASS_DP_RX) map = drvdata->hdmiif_map; + else if (dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) + map = (dai_id == LPASS_CDC_DMA_VA_TX0) ? + drvdata->va_lpaif_map : + drvdata->rxtx_lpaif_map; else map = drvdata->lpaif_map;
@@ -625,12 +847,39 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( return bytes_to_frames(substream->runtime, curr_addr - base_addr); }
+static int lpass_platform_cdc_dma_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned long size, offset; + int ret; + + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + size = vma->vm_end - vma->vm_start; + offset = vma->vm_pgoff << PAGE_SHIFT; + ret = io_remap_pfn_range(vma, vma->vm_start, + (runtime->dma_addr + offset) >> PAGE_SHIFT, + size, vma->vm_page_prot); + + return ret; +} + static int lpass_platform_pcmops_mmap(struct snd_soc_component *component, struct snd_pcm_substream *substream, struct vm_area_struct *vma) { struct snd_pcm_runtime *runtime = substream->runtime; + 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); + unsigned int dai_id = cpu_dai->driver->id;
+ if (dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) { + lpass_platform_cdc_dma_mmap(component, substream, vma); + return 0; + } return dma_mmap_coherent(component->dev, vma, runtime->dma_area, runtime->dma_addr, runtime->dma_bytes); } @@ -651,6 +900,14 @@ static irqreturn_t lpass_dma_interrupt_handler(
mask = LPAIF_IRQ_ALL(chan); switch (dai_id) { + case LPASS_CDC_DMA_RX0: + case LPASS_CDC_DMA_TX3: + case LPASS_CDC_DMA_VA_TX0: + map = (dai_id == LPASS_CDC_DMA_VA_TX0) ? + drvdata->va_lpaif_map : drvdata->rxtx_lpaif_map; + reg = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST, dai_id); + val = 0; + break; case LPASS_DP_RX: map = drvdata->hdmiif_map; reg = LPASS_HDMITX_APP_IRQCLEAR_REG(v); @@ -774,41 +1031,131 @@ static irqreturn_t lpass_platform_hdmiif_irq(int irq, void *data) return rv; } } + return IRQ_HANDLED; +} + +static irqreturn_t lpass_platform_rxtxif_irq(int irq, void *data) +{ + struct lpass_data *drvdata = data; + struct lpass_variant *v = drvdata->variant; + unsigned int irqs; + int rv, chan; + + rv = regmap_read(drvdata->rxtx_lpaif_map, + LPAIF_RXTX_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST, LPASS_CDC_DMA_RX0), &irqs); + if (rv) + return IRQ_NONE; + /* Handle per channel interrupts */ + for (chan = 0; chan < LPASS_MAX_CDC_DMA_CHANNELS; chan++) { + if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->rxtx_substream[chan]) { + rv = lpass_dma_interrupt_handler( + drvdata->rxtx_substream[chan], + drvdata, chan, irqs); + if (rv != IRQ_HANDLED) + return rv; + } + } + + return IRQ_HANDLED; +} + +static irqreturn_t lpass_platform_vaif_irq(int irq, void *data) +{ + struct lpass_data *drvdata = data; + struct lpass_variant *v = drvdata->variant; + unsigned int irqs; + int rv, chan;
+ rv = regmap_read(drvdata->va_lpaif_map, + LPAIF_RXTX_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST, + LPASS_CDC_DMA_VA_TX0), &irqs); + if (rv) + return IRQ_NONE; + /* Handle per channel interrupts */ + for (chan = 0; chan < LPASS_MAX_VA_CDC_DMA_CHANNELS; chan++) { + if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->va_substream[chan]) { + rv = lpass_dma_interrupt_handler( + drvdata->va_substream[chan], + drvdata, chan, irqs); + if (rv != IRQ_HANDLED) + return rv; + } + } return IRQ_HANDLED; }
+static int lpass_platform_prealloc_cdc_dma_buffer(struct snd_pcm *pcm, + struct snd_pcm_substream *substream, int dai_id) +{ + struct snd_dma_buffer *buf = &substream->dma_buffer; + int ret; + + ret = dma_coerce_mask_and_coherent(pcm->card->dev, DMA_BIT_MASK(64)); + if (ret) + return ret; + + buf->dev.dev = pcm->card->dev; + buf->private_data = NULL; + + /* Assign Codec DMA buffer pointers */ + buf->dev.type = SNDRV_DMA_TYPE_CONTINUOUS; + if (dai_id == LPASS_CDC_DMA_RX0) { + buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + buf->addr = LPSAS_RXTX_CDC_DMA_LPM_ADDR; + } else if (dai_id == LPASS_CDC_DMA_TX3) { + buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + buf->addr = LPSAS_RXTX_CDC_DMA_LPM_ADDR + LPSAS_RXTX_CDC_DMA_LPM_BUFF_SIZE; + } else if (dai_id == LPASS_CDC_DMA_VA_TX0) { + buf->bytes = lpass_platform_va_hardware.buffer_bytes_max; + buf->addr = LPSAS_VA_CDC_DMA_LPM_ADDR; + } + + buf->area = (unsigned char * __force)ioremap(buf->addr, buf->bytes); + + return 0; +} + static int lpass_platform_pcm_new(struct snd_soc_component *component, struct snd_soc_pcm_runtime *soc_runtime) { struct snd_pcm *pcm = soc_runtime->pcm; struct snd_pcm_substream *psubstream, *csubstream; int ret; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + unsigned int dai_id = cpu_dai->driver->id; + size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;
psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; if (psubstream) { - ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, - component->dev, - size, &psubstream->dma_buffer); - if (ret) { - dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); - return ret; + if (dai_id == LPASS_CDC_DMA_RX0) { + lpass_platform_prealloc_cdc_dma_buffer(pcm, psubstream, dai_id); + } else { + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + component->dev, + size, &psubstream->dma_buffer); + if (ret) { + dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); + return ret; + } } }
csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; if (csubstream) { - ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, - component->dev, - size, &csubstream->dma_buffer); - if (ret) { - dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); - if (psubstream) - snd_dma_free_pages(&psubstream->dma_buffer); - return ret; + if (dai_id == LPASS_CDC_DMA_TX3 || dai_id == LPASS_CDC_DMA_VA_TX0) { + lpass_platform_prealloc_cdc_dma_buffer(pcm, csubstream, dai_id); + } else { + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + component->dev, + size, &csubstream->dma_buffer); + if (ret) { + dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); + if (psubstream) + snd_dma_free_pages(&psubstream->dma_buffer); + return ret; + } } - }
return 0; @@ -818,18 +1165,43 @@ static void lpass_platform_pcm_free(struct snd_soc_component *component, struct snd_pcm *pcm) { struct snd_pcm_substream *substream; + unsigned int dai_id = component->id; int i;
for_each_pcm_streams(i) { substream = pcm->streams[i].substream; if (substream) { - snd_dma_free_pages(&substream->dma_buffer); + if (dai_id == LPASS_CDC_DMA_RX0 || + dai_id == LPASS_CDC_DMA_TX3 || + dai_id == LPASS_CDC_DMA_VA_TX0) { + if (substream->dma_buffer.area) + iounmap((void __iomem *)substream->dma_buffer.area); + } else { + snd_dma_free_pages(&substream->dma_buffer); + } substream->dma_buffer.area = NULL; substream->dma_buffer.addr = 0; } } }
+int lpass_platform_copy(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int channel, + unsigned long pos, void __user *buf, unsigned long bytes) +{ + struct snd_pcm_runtime *rt = substream->runtime; + + unsigned char *dma_buf = rt->dma_area + pos + + channel * (rt->dma_bytes / rt->channels); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return copy_from_user_toio(dma_buf, buf, bytes); + else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + return copy_to_user_fromio(buf, dma_buf, bytes); + + return 0; +} + static int lpass_platform_pcmops_suspend(struct snd_soc_component *component) { struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); @@ -875,6 +1247,7 @@ static const struct snd_soc_component_driver lpass_component_driver = { .mmap = lpass_platform_pcmops_mmap, .pcm_construct = lpass_platform_pcm_new, .pcm_destruct = lpass_platform_pcm_free, + .copy_user = lpass_platform_copy, .suspend = lpass_platform_pcmops_suspend, .resume = lpass_platform_pcmops_resume,
@@ -914,6 +1287,60 @@ int asoc_qcom_lpass_platform_register(struct platform_device *pdev) return ret; }
+ if (drvdata->wcd_codec_enable) { + ret = regmap_write(drvdata->rxtx_lpaif_map, + LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST, LPASS_CDC_DMA_TX3), 0x0); + if (ret) { + dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret); + return ret; + } + ret = regmap_write(drvdata->va_lpaif_map, + LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST, LPASS_CDC_DMA_VA_TX0), 0x0); + if (ret) { + dev_err(&pdev->dev, "error writing to rxtx irqen reg: %d\n", ret); + return ret; + } + drvdata->rxtxif_irq = platform_get_irq_byname(pdev, "lpass-irq-rxtxif"); + if (drvdata->rxtxif_irq < 0) + return -ENODEV; + + ret = devm_request_irq(&pdev->dev, drvdata->rxtxif_irq, + lpass_platform_rxtxif_irq, IRQF_TRIGGER_RISING, + "lpass-irq-rxtxif", drvdata); + if (ret) { + dev_err(&pdev->dev, "rxtx irq request failed: %d\n", ret); + return ret; + } + + ret = lpass_platform_alloc_rxtx_dmactl_fields(&pdev->dev, + drvdata->rxtx_lpaif_map); + if (ret) { + dev_err(&pdev->dev, + "error initializing rxtx dmactl fields: %d\n", ret); + return ret; + } + + drvdata->vaif_irq = platform_get_irq_byname(pdev, "lpass-irq-vaif"); + if (drvdata->vaif_irq < 0) + return -ENODEV; + + ret = devm_request_irq(&pdev->dev, drvdata->vaif_irq, + lpass_platform_vaif_irq, IRQF_TRIGGER_RISING, + "lpass-irq-vaif", drvdata); + if (ret) { + dev_err(&pdev->dev, "va irq request failed: %d\n", ret); + return ret; + } + + ret = lpass_platform_alloc_va_dmactl_fields(&pdev->dev, + drvdata->va_lpaif_map); + if (ret) { + dev_err(&pdev->dev, + "error initializing va dmactl fields: %d\n", ret); + return ret; + } + } + if (drvdata->hdmi_port_enable) { drvdata->hdmiif_irq = platform_get_irq_byname(pdev, "lpass-irq-hdmi"); if (drvdata->hdmiif_irq < 0)