diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/qcom/lpass-platform.c | 1386 |
1 files changed, 1386 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c new file mode 100644 index 0000000000..990d7c33f9 --- /dev/null +++ b/sound/soc/qcom/lpass-platform.c @@ -0,0 +1,1386 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. + * + * lpass-platform.c -- ALSA SoC platform driver for QTi LPASS + */ + +#include <linux/dma-mapping.h> +#include <linux/export.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <sound/pcm_params.h> +#include <linux/regmap.h> +#include <sound/soc.h> +#include "lpass-lpaif-reg.h" +#include "lpass.h" + +#define DRV_NAME "lpass-platform" + +#define LPASS_PLATFORM_BUFFER_SIZE (24 * 2 * 1024) +#define LPASS_PLATFORM_PERIODS 2 +#define LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE (8 * 1024) +#define LPASS_VA_CDC_DMA_LPM_BUFF_SIZE (12 * 1024) +#define LPASS_CDC_DMA_REGISTER_FIELDS_MAX 15 + +static const struct snd_pcm_hardware lpass_platform_pcm_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 = LPASS_PLATFORM_BUFFER_SIZE, + .period_bytes_max = LPASS_PLATFORM_BUFFER_SIZE / + LPASS_PLATFORM_PERIODS, + .period_bytes_min = LPASS_PLATFORM_BUFFER_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_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 = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE, + .period_bytes_max = LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .period_bytes_min = LPASS_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 = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE, + .period_bytes_max = LPASS_VA_CDC_DMA_LPM_BUFF_SIZE / + LPASS_PLATFORM_PERIODS, + .period_bytes_min = LPASS_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; + + rd_dmactl = devm_kzalloc(dev, sizeof(*rd_dmactl), GFP_KERNEL); + if (!rd_dmactl) + return -ENOMEM; + + wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL); + if (!wr_dmactl) + return -ENOMEM; + + drvdata->rxtx_rd_dmactl = rd_dmactl; + drvdata->rxtx_wr_dmactl = wr_dmactl; + + rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf, + &v->rxtx_rdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX); + if (rval) + return rval; + + return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf, + &v->rxtx_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX); +} + +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; + + wr_dmactl = devm_kzalloc(dev, sizeof(*wr_dmactl), GFP_KERNEL); + if (!wr_dmactl) + return -ENOMEM; + + drvdata->va_wr_dmactl = wr_dmactl; + return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf, + &v->va_wrdma_intf, LPASS_CDC_DMA_REGISTER_FIELDS_MAX); +} + + +static int lpass_platform_alloc_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->rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), + GFP_KERNEL); + if (drvdata->rd_dmactl == NULL) + return -ENOMEM; + + drvdata->wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), + GFP_KERNEL); + if (drvdata->wr_dmactl == NULL) + return -ENOMEM; + + rd_dmactl = drvdata->rd_dmactl; + wr_dmactl = drvdata->wr_dmactl; + + rval = devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->intf, + &v->rdma_intf, 6); + if (rval) + return rval; + + return devm_regmap_field_bulk_alloc(dev, map, &wr_dmactl->intf, + &v->wrdma_intf, 6); +} + +static int lpass_platform_alloc_hdmidmactl_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; + + rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl), GFP_KERNEL); + if (rd_dmactl == NULL) + return -ENOMEM; + + drvdata->hdmi_rd_dmactl = rd_dmactl; + + return devm_regmap_field_bulk_alloc(dev, map, &rd_dmactl->bursten, + &v->hdmi_rdma_bursten, 8); +} + +static int lpass_platform_pcmops_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + 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); + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct lpass_variant *v = drvdata->variant; + int ret, dma_ch, dir = substream->stream; + struct lpass_pcm_data *data; + struct regmap *map; + unsigned int dai_id = cpu_dai->driver->id; + + component->id = dai_id; + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->i2s_port = cpu_dai->driver->id; + runtime->private_data = data; + + if (v->alloc_dma_channel) + dma_ch = v->alloc_dma_channel(drvdata, dir, dai_id); + else + dma_ch = 0; + + if (dma_ch < 0) { + kfree(data); + return dma_ch; + } + + switch (dai_id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + map = drvdata->lpaif_map; + drvdata->substream[dma_ch] = substream; + break; + case LPASS_DP_RX: + map = drvdata->hdmiif_map; + drvdata->hdmi_substream[dma_ch] = substream; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + map = drvdata->rxtx_lpaif_map; + drvdata->rxtx_substream[dma_ch] = substream; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + map = drvdata->va_lpaif_map; + drvdata->va_substream[dma_ch] = substream; + break; + default: + break; + } + + data->dma_ch = dma_ch; + switch (dai_id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + case LPASS_DP_RX: + ret = regmap_write(map, LPAIF_DMACTL_REG(v, dma_ch, dir, data->i2s_port), 0); + if (ret) { + kfree(data); + 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; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + snd_soc_set_runtime_hwparams(substream, &lpass_platform_rxtx_hardware); + runtime->dma_bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + snd_soc_set_runtime_hwparams(substream, &lpass_platform_va_hardware); + runtime->dma_bytes = lpass_platform_va_hardware.buffer_bytes_max; + snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); + break; + default: + 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", + ret); + return -EINVAL; + } + + return 0; +} + +static int lpass_platform_pcmops_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + 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); + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct lpass_variant *v = drvdata->variant; + struct lpass_pcm_data *data; + unsigned int dai_id = cpu_dai->driver->id; + + data = runtime->private_data; + + switch (dai_id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + drvdata->substream[data->dma_ch] = NULL; + break; + case LPASS_DP_RX: + drvdata->hdmi_substream[data->dma_ch] = NULL; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + drvdata->rxtx_substream[data->dma_ch] = NULL; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + drvdata->va_substream[data->dma_ch] = NULL; + break; + default: + break; + } + + if (v->free_dma_channel) + v->free_dma_channel(drvdata, data->dma_ch, dai_id); + + kfree(data); + return 0; +} + +static struct lpaif_dmactl *__lpass_get_dmactl_handle(const struct snd_pcm_substream *substream, + struct snd_soc_component *component) +{ + 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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct lpaif_dmactl *dmactl = NULL; + + switch (cpu_dai->driver->id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dmactl = drvdata->rd_dmactl; + else + dmactl = drvdata->wr_dmactl; + break; + case LPASS_DP_RX: + dmactl = drvdata->hdmi_rd_dmactl; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + dmactl = drvdata->rxtx_rd_dmactl; + break; + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + dmactl = drvdata->rxtx_wr_dmactl; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + dmactl = drvdata->va_wr_dmactl; + break; + } + + return dmactl; +} + +static int __lpass_get_id(const struct snd_pcm_substream *substream, + struct snd_soc_component *component) +{ + 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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + int id; + + switch (cpu_dai->driver->id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + id = pcm_data->dma_ch; + else + id = pcm_data->dma_ch - v->wrdma_channel_start; + break; + case LPASS_DP_RX: + id = pcm_data->dma_ch; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + id = pcm_data->dma_ch; + break; + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + id = pcm_data->dma_ch - v->rxtx_wrdma_channel_start; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + id = pcm_data->dma_ch - v->va_wrdma_channel_start; + break; + } + + return id; +} + +static struct regmap *__lpass_get_regmap_handle(const struct snd_pcm_substream *substream, + struct snd_soc_component *component) +{ + 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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct regmap *map = NULL; + + switch (cpu_dai->driver->id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + map = drvdata->lpaif_map; + break; + case LPASS_DP_RX: + map = drvdata->hdmiif_map; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + map = drvdata->rxtx_lpaif_map; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + map = drvdata->va_lpaif_map; + break; + } + + return map; +} + +static int lpass_platform_pcmops_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 snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + snd_pcm_format_t format = params_format(params); + unsigned int channels = params_channels(params); + unsigned int regval; + struct lpaif_dmactl *dmactl; + int id; + int bitwidth; + int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start; + unsigned int dai_id = cpu_dai->driver->id; + + dmactl = __lpass_get_dmactl_handle(substream, component); + id = __lpass_get_id(substream, component); + + bitwidth = snd_pcm_format_width(format); + if (bitwidth < 0) { + dev_err(soc_runtime->dev, "invalid bit width given: %d\n", + bitwidth); + return bitwidth; + } + + ret = regmap_fields_write(dmactl->bursten, id, LPAIF_DMACTL_BURSTEN_INCR4); + if (ret) { + dev_err(soc_runtime->dev, "error updating bursten field: %d\n", ret); + return ret; + } + + ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8); + if (ret) { + dev_err(soc_runtime->dev, "error updating fifowm field: %d\n", ret); + return ret; + } + + switch (dai_id) { + case LPASS_DP_RX: + ret = regmap_fields_write(dmactl->burst8, id, + LPAIF_DMACTL_BURSTEN_INCR4); + if (ret) { + dev_err(soc_runtime->dev, "error updating burst8en field: %d\n", ret); + return ret; + } + ret = regmap_fields_write(dmactl->burst16, id, + LPAIF_DMACTL_BURSTEN_INCR4); + if (ret) { + dev_err(soc_runtime->dev, "error updating burst16en field: %d\n", ret); + return ret; + } + ret = regmap_fields_write(dmactl->dynburst, id, + LPAIF_DMACTL_BURSTEN_INCR4); + if (ret) { + dev_err(soc_runtime->dev, "error updating dynbursten field: %d\n", ret); + return ret; + } + break; + case MI2S_PRIMARY: + case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: + ret = regmap_fields_write(dmactl->intf, id, + LPAIF_DMACTL_AUDINTF(dma_port)); + if (ret) { + dev_err(soc_runtime->dev, "error updating audio interface field: %d\n", + ret); + return ret; + } + + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX0: + break; + default: + dev_err(soc_runtime->dev, "%s: invalid interface: %d\n", __func__, dai_id); + break; + } + switch (bitwidth) { + case 16: + switch (channels) { + case 1: + case 2: + regval = LPAIF_DMACTL_WPSCNT_ONE; + break; + case 4: + regval = LPAIF_DMACTL_WPSCNT_TWO; + break; + case 6: + regval = LPAIF_DMACTL_WPSCNT_THREE; + break; + case 8: + regval = LPAIF_DMACTL_WPSCNT_FOUR; + break; + default: + dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n", + bitwidth, channels); + return -EINVAL; + } + break; + case 24: + case 32: + switch (channels) { + case 1: + regval = LPAIF_DMACTL_WPSCNT_ONE; + break; + case 2: + regval = (dai_id == LPASS_DP_RX ? + LPAIF_DMACTL_WPSCNT_ONE : + LPAIF_DMACTL_WPSCNT_TWO); + break; + case 4: + regval = (dai_id == LPASS_DP_RX ? + LPAIF_DMACTL_WPSCNT_TWO : + LPAIF_DMACTL_WPSCNT_FOUR); + break; + case 6: + regval = (dai_id == LPASS_DP_RX ? + LPAIF_DMACTL_WPSCNT_THREE : + LPAIF_DMACTL_WPSCNT_SIX); + break; + case 8: + regval = (dai_id == LPASS_DP_RX ? + LPAIF_DMACTL_WPSCNT_FOUR : + LPAIF_DMACTL_WPSCNT_EIGHT); + break; + default: + dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n", + bitwidth, channels); + return -EINVAL; + } + break; + default: + dev_err(soc_runtime->dev, "invalid PCM config given: bw=%d, ch=%u\n", + bitwidth, channels); + return -EINVAL; + } + + ret = regmap_fields_write(dmactl->wpscnt, id, regval); + if (ret) { + dev_err(soc_runtime->dev, "error writing to dmactl reg: %d\n", + ret); + return ret; + } + + return 0; +} + +static int lpass_platform_pcmops_hw_free(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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + unsigned int reg; + int ret; + struct regmap *map; + unsigned int dai_id = cpu_dai->driver->id; + + if (is_cdc_dma_port(dai_id)) + return 0; + map = __lpass_get_regmap_handle(substream, component); + + reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id); + ret = regmap_write(map, reg, 0); + if (ret) + dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n", + ret); + + return ret; +} + +static int lpass_platform_pcmops_prepare(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + 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); + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + struct lpaif_dmactl *dmactl; + struct regmap *map; + int ret, id, ch, dir = substream->stream; + unsigned int dai_id = cpu_dai->driver->id; + + ch = pcm_data->dma_ch; + + dmactl = __lpass_get_dmactl_handle(substream, component); + id = __lpass_get_id(substream, component); + map = __lpass_get_regmap_handle(substream, component); + + ret = regmap_write(map, LPAIF_DMABASE_REG(v, ch, dir, dai_id), + runtime->dma_addr); + if (ret) { + dev_err(soc_runtime->dev, "error writing to rdmabase reg: %d\n", + ret); + return ret; + } + + ret = regmap_write(map, LPAIF_DMABUFF_REG(v, ch, dir, dai_id), + (snd_pcm_lib_buffer_bytes(substream) >> 2) - 1); + if (ret) { + dev_err(soc_runtime->dev, "error writing to rdmabuff reg: %d\n", + ret); + return ret; + } + + ret = regmap_write(map, LPAIF_DMAPER_REG(v, ch, dir, dai_id), + (snd_pcm_lib_period_bytes(substream) >> 2) - 1); + if (ret) { + dev_err(soc_runtime->dev, "error writing to rdmaper reg: %d\n", + ret); + return ret; + } + + if (is_cdc_dma_port(dai_id)) { + 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", + ret); + return ret; + } + + return 0; +} + +static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + int cmd) +{ + 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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + struct lpaif_dmactl *dmactl; + struct regmap *map; + int ret, ch, id; + unsigned int reg_irqclr = 0, val_irqclr = 0; + unsigned int reg_irqen = 0, val_irqen = 0, val_mask = 0; + unsigned int dai_id = cpu_dai->driver->id; + + ch = pcm_data->dma_ch; + dmactl = __lpass_get_dmactl_handle(substream, component); + id = __lpass_get_id(substream, component); + map = __lpass_get_regmap_handle(substream, component); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + 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", ret); + return ret; + } + switch (dai_id) { + case LPASS_DP_RX: + ret = regmap_fields_write(dmactl->dyncclk, id, + LPAIF_DMACTL_DYNCLK_ON); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg: %d\n", ret); + return ret; + } + reg_irqclr = LPASS_HDMITX_APP_IRQCLEAR_REG(v); + val_irqclr = (LPAIF_IRQ_ALL(ch) | + LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch)); + + reg_irqen = LPASS_HDMITX_APP_IRQEN_REG(v); + val_mask = (LPAIF_IRQ_ALL(ch) | + LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch)); + val_irqen = (LPAIF_IRQ_ALL(ch) | + LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch)); + break; + case MI2S_PRIMARY: + case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: + reg_irqclr = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val_irqclr = LPAIF_IRQ_ALL(ch); + + + reg_irqen = LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + 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; + } + reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + 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; + } + reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; + default: + dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id); + return -EINVAL; + } + + ret = regmap_write_bits(map, reg_irqclr, val_irqclr, val_irqclr); + if (ret) { + dev_err(soc_runtime->dev, "error writing to irqclear reg: %d\n", ret); + return ret; + } + ret = regmap_update_bits(map, reg_irqen, val_mask, val_irqen); + if (ret) { + dev_err(soc_runtime->dev, "error writing to irqen reg: %d\n", ret); + return ret; + } + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + ret = regmap_fields_write(dmactl->enable, id, + LPAIF_DMACTL_ENABLE_OFF); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg: %d\n", ret); + return ret; + } + switch (dai_id) { + case LPASS_DP_RX: + ret = regmap_fields_write(dmactl->dyncclk, id, + LPAIF_DMACTL_DYNCLK_OFF); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to rdmactl reg: %d\n", ret); + return ret; + } + reg_irqen = LPASS_HDMITX_APP_IRQEN_REG(v); + val_mask = (LPAIF_IRQ_ALL(ch) | + LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(ch) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(ch)); + val_irqen = 0; + break; + case MI2S_PRIMARY: + case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: + reg_irqen = LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = 0; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + 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; + } + + reg_irqclr = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + 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; + } + + reg_irqclr = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val_irqclr = LPAIF_IRQ_ALL(ch); + + reg_irqen = LPAIF_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); + val_mask = LPAIF_IRQ_ALL(ch); + val_irqen = LPAIF_IRQ_ALL(ch); + break; + default: + dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id); + return -EINVAL; + } + + ret = regmap_update_bits(map, reg_irqen, val_mask, val_irqen); + if (ret) { + dev_err(soc_runtime->dev, + "error writing to irqen reg: %d\n", ret); + return ret; + } + break; + } + + return 0; +} + +static snd_pcm_uframes_t lpass_platform_pcmops_pointer( + 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 lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + unsigned int base_addr, curr_addr; + int ret, ch, dir = substream->stream; + struct regmap *map; + unsigned int dai_id = cpu_dai->driver->id; + + map = __lpass_get_regmap_handle(substream, component); + ch = pcm_data->dma_ch; + + ret = regmap_read(map, + LPAIF_DMABASE_REG(v, ch, dir, dai_id), &base_addr); + if (ret) { + dev_err(soc_runtime->dev, + "error reading from rdmabase reg: %d\n", ret); + return ret; + } + + ret = regmap_read(map, + LPAIF_DMACURR_REG(v, ch, dir, dai_id), &curr_addr); + if (ret) { + dev_err(soc_runtime->dev, + "error reading from rdmacurr reg: %d\n", ret); + return ret; + } + + return bytes_to_frames(substream->runtime, curr_addr - base_addr); +} + +static int lpass_platform_cdc_dma_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + unsigned long size, offset; + + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); + size = vma->vm_end - vma->vm_start; + offset = vma->vm_pgoff << PAGE_SHIFT; + return io_remap_pfn_range(vma, vma->vm_start, + (runtime->dma_addr + offset) >> PAGE_SHIFT, + size, vma->vm_page_prot); + +} + +static int lpass_platform_pcmops_mmap(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct vm_area_struct *vma) +{ + 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 (is_cdc_dma_port(dai_id)) + return lpass_platform_cdc_dma_mmap(substream, vma); + + return snd_pcm_lib_default_mmap(substream, vma); +} + +static irqreturn_t lpass_dma_interrupt_handler( + struct snd_pcm_substream *substream, + struct lpass_data *drvdata, + int chan, u32 interrupts) +{ + 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 lpass_variant *v = drvdata->variant; + irqreturn_t ret = IRQ_NONE; + int rv; + unsigned int reg, val, mask; + struct regmap *map; + unsigned int dai_id = cpu_dai->driver->id; + + mask = LPAIF_IRQ_ALL(chan); + switch (dai_id) { + case LPASS_DP_RX: + map = drvdata->hdmiif_map; + reg = LPASS_HDMITX_APP_IRQCLEAR_REG(v); + val = (LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(chan) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(chan)); + break; + case MI2S_PRIMARY: + case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: + map = drvdata->lpaif_map; + reg = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val = 0; + break; + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + map = drvdata->rxtx_lpaif_map; + reg = LPAIF_RXTX_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val = 0; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + map = drvdata->va_lpaif_map; + reg = LPAIF_VA_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); + val = 0; + break; + default: + dev_err(soc_runtime->dev, "%s: invalid %d interface\n", __func__, dai_id); + return -EINVAL; + } + if (interrupts & LPAIF_IRQ_PER(chan)) { + rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_PER(chan) | val)); + if (rv) { + dev_err(soc_runtime->dev, + "error writing to irqclear reg: %d\n", rv); + return IRQ_NONE; + } + snd_pcm_period_elapsed(substream); + ret = IRQ_HANDLED; + } + + if (interrupts & LPAIF_IRQ_XRUN(chan)) { + rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_XRUN(chan) | val)); + if (rv) { + dev_err(soc_runtime->dev, + "error writing to irqclear reg: %d\n", rv); + return IRQ_NONE; + } + dev_warn_ratelimited(soc_runtime->dev, "xrun warning\n"); + + snd_pcm_stop_xrun(substream); + ret = IRQ_HANDLED; + } + + if (interrupts & LPAIF_IRQ_ERR(chan)) { + rv = regmap_write_bits(map, reg, mask, (LPAIF_IRQ_ERR(chan) | val)); + if (rv) { + dev_err(soc_runtime->dev, + "error writing to irqclear reg: %d\n", rv); + return IRQ_NONE; + } + dev_err(soc_runtime->dev, "bus access error\n"); + snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); + ret = IRQ_HANDLED; + } + + if (interrupts & val) { + rv = regmap_write(map, reg, val); + if (rv) { + dev_err(soc_runtime->dev, + "error writing to irqclear reg: %d\n", rv); + return IRQ_NONE; + } + ret = IRQ_HANDLED; + } + + return ret; +} + +static irqreturn_t lpass_platform_lpaif_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->lpaif_map, + LPAIF_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs); + if (rv) { + pr_err("error reading from irqstat reg: %d\n", rv); + return IRQ_NONE; + } + + /* Handle per channel interrupts */ + for (chan = 0; chan < LPASS_MAX_DMA_CHANNELS; chan++) { + if (irqs & LPAIF_IRQ_ALL(chan) && drvdata->substream[chan]) { + rv = lpass_dma_interrupt_handler( + drvdata->substream[chan], + drvdata, chan, irqs); + if (rv != IRQ_HANDLED) + return rv; + } + } + + return IRQ_HANDLED; +} + +static irqreturn_t lpass_platform_hdmiif_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->hdmiif_map, + LPASS_HDMITX_APP_IRQSTAT_REG(v), &irqs); + if (rv) { + pr_err("error reading from irqstat reg: %d\n", rv); + return IRQ_NONE; + } + + /* Handle per channel interrupts */ + for (chan = 0; chan < LPASS_MAX_HDMI_DMA_CHANNELS; chan++) { + if (irqs & (LPAIF_IRQ_ALL(chan) | LPAIF_IRQ_HDMI_REQ_ON_PRELOAD(chan) | + LPAIF_IRQ_HDMI_METADONE | + LPAIF_IRQ_HDMI_SDEEP_AUD_DIS(chan)) + && drvdata->hdmi_substream[chan]) { + rv = lpass_dma_interrupt_handler( + drvdata->hdmi_substream[chan], + drvdata, chan, irqs); + if (rv != IRQ_HANDLED) + 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; + irqreturn_t rv; + int chan; + + rv = regmap_read(drvdata->rxtx_lpaif_map, + LPAIF_RXTX_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs); + + /* 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; + irqreturn_t rv; + int chan; + + rv = regmap_read(drvdata->va_lpaif_map, + LPAIF_VA_IRQSTAT_REG(v, LPAIF_IRQ_PORT_HOST), &irqs); + + /* 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_soc_component *component, + struct snd_pcm *pcm, int dai_id) +{ + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_substream *substream; + struct snd_dma_buffer *buf; + + if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) + substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + else + substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; + + buf = &substream->dma_buffer; + buf->dev.dev = pcm->card->dev; + buf->private_data = NULL; + + /* Assign Codec DMA buffer pointers */ + buf->dev.type = SNDRV_DMA_TYPE_CONTINUOUS; + + switch (dai_id) { + case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: + buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + buf->addr = drvdata->rxtx_cdc_dma_lpm_buf; + break; + case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: + buf->bytes = lpass_platform_rxtx_hardware.buffer_bytes_max; + buf->addr = drvdata->rxtx_cdc_dma_lpm_buf + LPASS_RXTX_CDC_DMA_LPM_BUFF_SIZE; + break; + case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: + buf->bytes = lpass_platform_va_hardware.buffer_bytes_max; + buf->addr = drvdata->va_cdc_dma_lpm_buf; + break; + default: + break; + } + + buf->area = (unsigned char * __force)memremap(buf->addr, buf->bytes, MEMREMAP_WC); + + 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_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; + + /* + * Lpass codec dma can access only lpass lpm hardware memory. + * ioremap is for HLOS to access hardware memory. + */ + if (is_cdc_dma_port(dai_id)) + return lpass_platform_prealloc_cdc_dma_buffer(component, pcm, dai_id); + + return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_NONCOHERENT, + component->dev, size); +} + +static int lpass_platform_pcmops_suspend(struct snd_soc_component *component) +{ + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct regmap *map; + unsigned int dai_id = component->id; + + if (dai_id == LPASS_DP_RX) + map = drvdata->hdmiif_map; + else + map = drvdata->lpaif_map; + + regcache_cache_only(map, true); + regcache_mark_dirty(map); + + return 0; +} + +static int lpass_platform_pcmops_resume(struct snd_soc_component *component) +{ + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct regmap *map; + unsigned int dai_id = component->id; + + if (dai_id == LPASS_DP_RX) + map = drvdata->hdmiif_map; + else + map = drvdata->lpaif_map; + + regcache_cache_only(map, false); + return regcache_sync(map); +} + +static int lpass_platform_copy(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int channel, + unsigned long pos, struct iov_iter *buf, + unsigned long bytes) +{ + struct snd_pcm_runtime *rt = substream->runtime; + unsigned int dai_id = component->id; + int ret = 0; + + void __iomem *dma_buf = (void __iomem *) (rt->dma_area + pos + + channel * (rt->dma_bytes / rt->channels)); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (is_cdc_dma_port(dai_id)) { + ret = copy_from_iter_toio(dma_buf, buf, bytes); + } else { + if (copy_from_iter((void __force *)dma_buf, bytes, buf) != bytes) + ret = -EFAULT; + } + } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + if (is_cdc_dma_port(dai_id)) { + ret = copy_to_iter_fromio(buf, dma_buf, bytes); + } else { + if (copy_to_iter((void __force *)dma_buf, bytes, buf) != bytes) + ret = -EFAULT; + } + } + + return ret; +} + +static const struct snd_soc_component_driver lpass_component_driver = { + .name = DRV_NAME, + .open = lpass_platform_pcmops_open, + .close = lpass_platform_pcmops_close, + .hw_params = lpass_platform_pcmops_hw_params, + .hw_free = lpass_platform_pcmops_hw_free, + .prepare = lpass_platform_pcmops_prepare, + .trigger = lpass_platform_pcmops_trigger, + .pointer = lpass_platform_pcmops_pointer, + .mmap = lpass_platform_pcmops_mmap, + .pcm_construct = lpass_platform_pcm_new, + .suspend = lpass_platform_pcmops_suspend, + .resume = lpass_platform_pcmops_resume, + .copy = lpass_platform_copy, + +}; + +int asoc_qcom_lpass_platform_register(struct platform_device *pdev) +{ + struct lpass_data *drvdata = platform_get_drvdata(pdev); + struct lpass_variant *v = drvdata->variant; + int ret; + + drvdata->lpaif_irq = platform_get_irq_byname(pdev, "lpass-irq-lpaif"); + if (drvdata->lpaif_irq < 0) + return -ENODEV; + + /* ensure audio hardware is disabled */ + ret = regmap_write(drvdata->lpaif_map, + LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 0); + if (ret) { + dev_err(&pdev->dev, "error writing to irqen reg: %d\n", ret); + return ret; + } + + ret = devm_request_irq(&pdev->dev, drvdata->lpaif_irq, + lpass_platform_lpaif_irq, IRQF_TRIGGER_RISING, + "lpass-irq-lpaif", drvdata); + if (ret) { + dev_err(&pdev->dev, "irq request failed: %d\n", ret); + return ret; + } + + ret = lpass_platform_alloc_dmactl_fields(&pdev->dev, + drvdata->lpaif_map); + if (ret) { + dev_err(&pdev->dev, + "error initializing dmactl fields: %d\n", ret); + return ret; + } + + if (drvdata->codec_dma_enable) { + ret = regmap_write(drvdata->rxtx_lpaif_map, + LPAIF_RXTX_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 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_VA_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST), 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, 0, "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, 0, "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) + return -ENODEV; + + ret = devm_request_irq(&pdev->dev, drvdata->hdmiif_irq, + lpass_platform_hdmiif_irq, 0, "lpass-irq-hdmi", drvdata); + if (ret) { + dev_err(&pdev->dev, "irq hdmi request failed: %d\n", ret); + return ret; + } + ret = regmap_write(drvdata->hdmiif_map, + LPASS_HDMITX_APP_IRQEN_REG(v), 0); + if (ret) { + dev_err(&pdev->dev, "error writing to hdmi irqen reg: %d\n", ret); + return ret; + } + + ret = lpass_platform_alloc_hdmidmactl_fields(&pdev->dev, + drvdata->hdmiif_map); + if (ret) { + dev_err(&pdev->dev, + "error initializing hdmidmactl fields: %d\n", ret); + return ret; + } + } + return devm_snd_soc_register_component(&pdev->dev, + &lpass_component_driver, NULL, 0); +} +EXPORT_SYMBOL_GPL(asoc_qcom_lpass_platform_register); + +MODULE_DESCRIPTION("QTi LPASS Platform Driver"); +MODULE_LICENSE("GPL v2"); |