Define the FW boot sequence for platforms that are recommended to use ICCMAX. This function uses the existing prepare and cleanup functions for creating a specially crafted capture stream before powering up the DSP cores.
Reviewed-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- sound/soc/sof/intel/hda-loader.c | 92 ++++++++++++++++++++++++++------ sound/soc/sof/intel/hda.h | 1 + 2 files changed, 78 insertions(+), 15 deletions(-)
diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index 9b4844aa3023..5464f899e16f 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -17,6 +17,7 @@
#include <linux/firmware.h> #include <sound/hdaudio_ext.h> +#include <sound/hda_register.h> #include <sound/sof.h> #include "../ops.h" #include "hda.h" @@ -33,11 +34,6 @@ static int cl_stream_prepare(struct snd_sof_dev *sdev, unsigned int format, struct pci_dev *pci = to_pci_dev(sdev->dev); int ret;
- if (direction != SNDRV_PCM_STREAM_PLAYBACK) { - dev_err(sdev->dev, "error: code loading DMA is playback only\n"); - return -EINVAL; - } - dsp_stream = hda_dsp_stream_get(sdev, direction);
if (!dsp_stream) { @@ -58,14 +54,21 @@ static int cl_stream_prepare(struct snd_sof_dev *sdev, unsigned int format, hstream->format_val = format; hstream->bufsize = size;
- ret = hda_dsp_stream_hw_params(sdev, dsp_stream, dmab, NULL); - if (ret < 0) { - dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret); - goto error; + if (direction == SNDRV_PCM_STREAM_CAPTURE) { + ret = hda_dsp_iccmax_stream_hw_params(sdev, dsp_stream, dmab, NULL); + if (ret < 0) { + dev_err(sdev->dev, "error: iccmax stream prepare failed: %x\n", ret); + goto error; + } + } else { + ret = hda_dsp_stream_hw_params(sdev, dsp_stream, dmab, NULL); + if (ret < 0) { + dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret); + goto error; + } + hda_dsp_stream_spib_config(sdev, dsp_stream, HDA_DSP_SPIB_ENABLE, size); }
- hda_dsp_stream_spib_config(sdev, dsp_stream, HDA_DSP_SPIB_ENABLE, size); - return hstream->stream_tag;
error: @@ -224,12 +227,15 @@ static int cl_cleanup(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab, { struct hdac_stream *hstream = &stream->hstream; int sd_offset = SOF_STREAM_SD_OFFSET(hstream); - int ret; + int ret = 0;
- ret = hda_dsp_stream_spib_config(sdev, stream, HDA_DSP_SPIB_DISABLE, 0); + if (hstream->direction == SNDRV_PCM_STREAM_PLAYBACK) + ret = hda_dsp_stream_spib_config(sdev, stream, HDA_DSP_SPIB_DISABLE, 0); + else + snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, sd_offset, + SOF_HDA_SD_CTL_DMA_START, 0);
- hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_PLAYBACK, - hstream->stream_tag); + hda_dsp_stream_put(sdev, hstream->direction, hstream->stream_tag); hstream->running = 0; hstream->substream = NULL;
@@ -287,6 +293,62 @@ static int cl_copy_fw(struct snd_sof_dev *sdev, struct hdac_ext_stream *stream) return status; }
+int hda_dsp_cl_boot_firmware_iccmax(struct snd_sof_dev *sdev) +{ + struct snd_sof_pdata *plat_data = sdev->pdata; + struct hdac_ext_stream *iccmax_stream; + struct hdac_bus *bus = sof_to_bus(sdev); + struct firmware stripped_firmware; + int ret, ret1; + int iccmax_tag; + u8 original_gb; + + /* save the original LTRP guardband value */ + original_gb = snd_hdac_chip_readb(bus, VS_LTRP) & HDA_VS_INTEL_LTRP_GB_MASK; + + if (plat_data->fw->size <= plat_data->fw_offset) { + dev_err(sdev->dev, "error: firmware size must be greater than firmware offset\n"); + return -EINVAL; + } + + stripped_firmware.size = plat_data->fw->size - plat_data->fw_offset; + + /* prepare capture stream for ICCMAX */ + iccmax_tag = cl_stream_prepare(sdev, HDA_CL_STREAM_FORMAT, stripped_firmware.size, + &sdev->dmab_bdl, SNDRV_PCM_STREAM_CAPTURE); + if (iccmax_tag < 0) { + dev_err(sdev->dev, "error: dma prepare for ICCMAX %x\n", iccmax_tag); + return iccmax_tag; + } + + /* get stream with tag */ + iccmax_stream = get_stream_with_tag(sdev, iccmax_tag, SNDRV_PCM_STREAM_CAPTURE); + if (!iccmax_stream) { + dev_err(sdev->dev, "error: could not get stream with stream tag %d\n", iccmax_tag); + ret = -ENODEV; + } else { + ret = hda_dsp_cl_boot_firmware(sdev); + } + + /* + * Perform iccmax stream cleanup. This should be done even if firmware loading fails. + * If the cleanup also fails, we return the initial error + */ + ret1 = cl_cleanup(sdev, &sdev->dmab_bdl, iccmax_stream); + if (ret1 < 0) { + dev_err(sdev->dev, "error: ICCMAX stream cleanup failed\n"); + + /* set return value to indicate cleanup failure */ + if (!ret) + ret = ret1; + } + + /* restore the original guardband value after FW boot */ + snd_hdac_chip_updateb(bus, VS_LTRP, HDA_VS_INTEL_LTRP_GB_MASK, original_gb); + + return ret; +} + int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev) { struct snd_sof_pdata *plat_data = sdev->pdata; diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 100eaaeecb4d..a2e6050f0ef0 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -612,6 +612,7 @@ int hda_dsp_ipc_cmd_done(struct snd_sof_dev *sdev, int dir); * DSP Code loader. */ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev); +int hda_dsp_cl_boot_firmware_iccmax(struct snd_sof_dev *sdev); int hda_dsp_cl_boot_firmware_skl(struct snd_sof_dev *sdev);
/* pre and post fw run ops */