For SoundWire, we need to know if endpoints needs to be 'aggregated' (MIPI parlance, meaning logically grouped), e.g. when two speaker amplifiers need to be handled as a single logical output.

We don't necessarily have the information at the firmware (BIOS) level, so add a notion of endpoints and specify if a device/endpoint is part of a group, with a position.

This may be expanded in future solutions, for now only provide a group and position information.

Since we modify the header file, change all existing upstream tables as well to avoid breaking compilation/bisect.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- include/sound/soc-acpi.h | 39 ++++++-- .../intel/common/soc-acpi-intel-cml-match.c | 87 +++++++++++++---- .../intel/common/soc-acpi-intel-icl-match.c | 97 +++++++++++++++---- .../intel/common/soc-acpi-intel-tgl-match.c | 49 ++++++++-- 4 files changed, 221 insertions(+), 51 deletions(-)

diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h index a217a87cae86..392e953d561e 100644 --- a/include/sound/soc-acpi.h +++ b/include/sound/soc-acpi.h @@ -75,18 +75,45 @@ struct snd_soc_acpi_mach_params { };

/** - * snd_soc_acpi_link_adr: ACPI-based list of _ADR, with a variable - * number of devices per link - * + * snd_soc_acpi_endpoint - endpoint descriptor + * @num: endpoint number (mandatory, unique per device) + * @aggregated: 0 (independent) or 1 (logically grouped) + * @group_position: zero-based order (only when @aggregated is 1) + * @group_id: platform-unique group identifier (only when @aggregrated is 1) + */ +struct snd_soc_acpi_endpoint { + u8 num; + u8 aggregated; + u8 group_position; + u8 group_id; +}; + +/** + * snd_soc_acpi_adr_device - descriptor for _ADR-enumerated device + * @adr: 64 bit ACPI _ADR value + * @num_endpoints: number of endpoints for this device + * @endpoints: array of endpoints + */ +struct snd_soc_acpi_adr_device { + const u64 adr; + const u8 num_endpoints; + const struct snd_soc_acpi_endpoint *endpoints; +}; + +/** + * snd_soc_acpi_link_adr - ACPI-based list of _ADR enumerated devices * @mask: one bit set indicates the link this list applies to - * @num_adr: ARRAY_SIZE of adr - * @adr: array of _ADR (represented as u64). + * @num_adr: ARRAY_SIZE of devices + * @adr_d: array of devices + * + * The number of devices per link can be more than 1, e.g. in SoundWire + * multi-drop configurations. */

struct snd_soc_acpi_link_adr { const u32 mask; const u32 num_adr; - const u64 *adr; + const struct snd_soc_acpi_adr_device *adr_d; };

/** diff --git a/sound/soc/intel/common/soc-acpi-intel-cml-match.c b/sound/soc/intel/common/soc-acpi-intel-cml-match.c index f55634c4c2e8..3525da79c68a 100644 --- a/sound/soc/intel/common/soc-acpi-intel-cml-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-cml-match.c @@ -59,42 +59,95 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_cml_machines[] = { }; EXPORT_SYMBOL_GPL(snd_soc_acpi_intel_cml_machines);

-static const u64 rt711_0_adr[] = { - 0x000010025D071100 +static const struct snd_soc_acpi_endpoint single_endpoint = { + .num = 0, + .aggregated = 0, + .group_position = 0, + .group_id = 0, };

-static const u64 rt1308_1_adr[] = { - 0x000110025D130800 +static const struct snd_soc_acpi_endpoint spk_l_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 0, + .group_id = 1, };

-static const u64 rt1308_2_adr[] = { - 0x000210025D130800 +static const struct snd_soc_acpi_endpoint spk_r_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 1, + .group_id = 1, };

-static const u64 rt715_3_adr[] = { - 0x000310025D071500 +static const struct snd_soc_acpi_adr_device rt711_0_adr[] = { + { + .adr = 0x000010025D071100, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_1_adr[] = { + { + .adr = 0x000110025D130800, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_2_adr[] = { + { + .adr = 0x000210025D130800, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_1_group1_adr[] = { + { + .adr = 0x000110025D130800, + .num_endpoints = 1, + .endpoints = &spk_l_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_2_group1_adr[] = { + { + .adr = 0x000210025D130800, + .num_endpoints = 1, + .endpoints = &spk_r_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt715_3_adr[] = { + { + .adr = 0x000310025D071500, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } };

static const struct snd_soc_acpi_link_adr cml_3_in_1_default[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, { .mask = BIT(1), - .num_adr = ARRAY_SIZE(rt1308_1_adr), - .adr = rt1308_1_adr, + .num_adr = ARRAY_SIZE(rt1308_1_group1_adr), + .adr_d = rt1308_1_group1_adr, }, { .mask = BIT(2), - .num_adr = ARRAY_SIZE(rt1308_2_adr), - .adr = rt1308_2_adr, + .num_adr = ARRAY_SIZE(rt1308_2_group1_adr), + .adr_d = rt1308_2_group1_adr, }, { .mask = BIT(3), .num_adr = ARRAY_SIZE(rt715_3_adr), - .adr = rt715_3_adr, + .adr_d = rt715_3_adr, }, {} }; @@ -103,17 +156,17 @@ static const struct snd_soc_acpi_link_adr cml_3_in_1_mono_amp[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, { .mask = BIT(1), .num_adr = ARRAY_SIZE(rt1308_1_adr), - .adr = rt1308_1_adr, + .adr_d = rt1308_1_adr, }, { .mask = BIT(3), .num_adr = ARRAY_SIZE(rt715_3_adr), - .adr = rt715_3_adr, + .adr_d = rt715_3_adr, }, {} }; diff --git a/sound/soc/intel/common/soc-acpi-intel-icl-match.c b/sound/soc/intel/common/soc-acpi-intel-icl-match.c index 752733013d54..a05fc083829e 100644 --- a/sound/soc/intel/common/soc-acpi-intel-icl-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-icl-match.c @@ -33,55 +33,112 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_icl_machines[] = { }; EXPORT_SYMBOL_GPL(snd_soc_acpi_intel_icl_machines);

-static const u64 rt700_0_adr[] = { - 0x000010025D070000 +static const struct snd_soc_acpi_endpoint single_endpoint = { + .num = 0, + .aggregated = 0, + .group_position = 0, + .group_id = 0, +}; + +static const struct snd_soc_acpi_endpoint spk_l_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 0, + .group_id = 1, +}; + +static const struct snd_soc_acpi_endpoint spk_r_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 1, + .group_id = 1, +}; + +static const struct snd_soc_acpi_adr_device rt700_0_adr[] = { + { + .adr = 0x000010025D070000, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } };

static const struct snd_soc_acpi_link_adr icl_rvp[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt700_0_adr), - .adr = rt700_0_adr, + .adr_d = rt700_0_adr, }, {} };

-static const u64 rt711_0_adr[] = { - 0x000010025D071100 +static const struct snd_soc_acpi_adr_device rt711_0_adr[] = { + { + .adr = 0x000010025D071100, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_1_adr[] = { + { + .adr = 0x000110025D130800, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } };

-static const u64 rt1308_1_adr[] = { - 0x000110025D130800 +static const struct snd_soc_acpi_adr_device rt1308_2_adr[] = { + { + .adr = 0x000210025D130800, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } };

-static const u64 rt1308_2_adr[] = { - 0x000210025D130800 +static const struct snd_soc_acpi_adr_device rt1308_1_group1_adr[] = { + { + .adr = 0x000110025D130800, + .num_endpoints = 1, + .endpoints = &spk_l_endpoint, + } };

-static const u64 rt715_3_adr[] = { - 0x000310025D071500 +static const struct snd_soc_acpi_adr_device rt1308_2_group1_adr[] = { + { + .adr = 0x000210025D130800, + .num_endpoints = 1, + .endpoints = &spk_r_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt715_3_adr[] = { + { + .adr = 0x000310025D071500, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } };

static const struct snd_soc_acpi_link_adr icl_3_in_1_default[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, { .mask = BIT(1), - .num_adr = ARRAY_SIZE(rt1308_1_adr), - .adr = rt1308_1_adr, + .num_adr = ARRAY_SIZE(rt1308_1_group1_adr), + .adr_d = rt1308_1_group1_adr, }, { .mask = BIT(2), - .num_adr = ARRAY_SIZE(rt1308_2_adr), - .adr = rt1308_2_adr, + .num_adr = ARRAY_SIZE(rt1308_2_group1_adr), + .adr_d = rt1308_2_group1_adr, }, { .mask = BIT(3), .num_adr = ARRAY_SIZE(rt715_3_adr), - .adr = rt715_3_adr, + .adr_d = rt715_3_adr, }, {} }; @@ -90,17 +147,17 @@ static const struct snd_soc_acpi_link_adr icl_3_in_1_mono_amp[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, { .mask = BIT(1), .num_adr = ARRAY_SIZE(rt1308_1_adr), - .adr = rt1308_1_adr, + .adr_d = rt1308_1_adr, }, { .mask = BIT(3), .num_adr = ARRAY_SIZE(rt715_3_adr), - .adr = rt715_3_adr, + .adr_d = rt715_3_adr, }, {} }; diff --git a/sound/soc/intel/common/soc-acpi-intel-tgl-match.c b/sound/soc/intel/common/soc-acpi-intel-tgl-match.c index c15eae402b18..3153b44f9053 100644 --- a/sound/soc/intel/common/soc-acpi-intel-tgl-match.c +++ b/sound/soc/intel/common/soc-acpi-intel-tgl-match.c @@ -14,20 +14,53 @@ static struct snd_soc_acpi_codecs tgl_codecs = { .codecs = {"MX98357A"} };

-static const u64 rt711_0_adr[] = { - 0x000010025D071100 +static const struct snd_soc_acpi_endpoint single_endpoint = { + .num = 0, + .aggregated = 0, + .group_position = 0, + .group_id = 0, };

-static const u64 rt1308_1_adr[] = { - 0x000120025D130800, - 0x000122025D130800 +static const struct snd_soc_acpi_endpoint spk_l_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 0, + .group_id = 1, +}; + +static const struct snd_soc_acpi_endpoint spk_r_endpoint = { + .num = 0, + .aggregated = 1, + .group_position = 1, + .group_id = 1, +}; + +static const struct snd_soc_acpi_adr_device rt711_0_adr[] = { + { + .adr = 0x000010025D071100, + .num_endpoints = 1, + .endpoints = &single_endpoint, + } +}; + +static const struct snd_soc_acpi_adr_device rt1308_1_adr[] = { + { + .adr = 0x000120025D130800, + .num_endpoints = 1, + .endpoints = &spk_l_endpoint, + }, + { + .adr = 0x000122025D130800, + .num_endpoints = 1, + .endpoints = &spk_r_endpoint, + } };

static const struct snd_soc_acpi_link_adr tgl_i2s_rt1308[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, {} }; @@ -36,12 +69,12 @@ static const struct snd_soc_acpi_link_adr tgl_rvp[] = { { .mask = BIT(0), .num_adr = ARRAY_SIZE(rt711_0_adr), - .adr = rt711_0_adr, + .adr_d = rt711_0_adr, }, { .mask = BIT(1), .num_adr = ARRAY_SIZE(rt1308_1_adr), - .adr = rt1308_1_adr, + .adr_d = rt1308_1_adr, }, {} };

Now that the SoundWire core supports the multi-step initialization, call the relevant APIs.

The actual hardware enablement can be done in two places, ideally we'd want to startup the SoundWire IP as soon as possible (while still taking power rail dependencies into account)

However when suspend/resume is implemented, the DSP device will be resumed first, and only when the DSP firmware is downloaded/booted would the SoundWire child devices be resumed, so there are only marginal benefits in starting the IP earlier for the first probe.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda-loader.c | 13 ++++ sound/soc/sof/intel/hda.c | 120 +++++++++++++++++++++++++++++++ sound/soc/sof/intel/hda.h | 44 ++++++++++++ 3 files changed, 177 insertions(+)

diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index 0633b76dab49..2ae94ea53122 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -399,6 +399,19 @@ int hda_dsp_pre_fw_run(struct snd_sof_dev *sdev) /* post fw run operations */ int hda_dsp_post_fw_run(struct snd_sof_dev *sdev) { + int ret; + + if (sdev->first_boot) { + ret = hda_sdw_startup(sdev); + if (ret < 0) { + dev_err(sdev->dev, + "error: could not startup SoundWire links\n"); + return ret; + } + } + + hda_sdw_int_enable(sdev, true); + /* re-enable clock gating and power gating */ return hda_dsp_ctrl_clock_power_gating(sdev, true); } diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index ee1edb53840c..c1fe94800da1 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -18,7 +18,9 @@ #include <sound/hdaudio_ext.h> #include <sound/hda_register.h>

+#include <linux/acpi.h> #include <linux/module.h> +#include <linux/soundwire/sdw_intel.h> #include <sound/intel-nhlt.h> #include <sound/sof.h> #include <sound/sof/xtensa.h> @@ -34,6 +36,98 @@

#define EXCEPT_MAX_HDR_SIZE 0x400

+#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE) + +void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable) +{ + sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable); +} + +static int hda_sdw_acpi_scan(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + acpi_handle handle; + int ret; + + handle = ACPI_HANDLE(sdev->dev); + + /* save ACPI info for the probe step */ + hdev = sdev->pdata->hw_pdata; + + ret = sdw_intel_acpi_scan(handle, &hdev->info); + if (ret < 0) { + dev_err(sdev->dev, "%s failed\n", __func__); + return -EINVAL; + } + + return 0; +} + +static int hda_sdw_probe(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + struct sdw_intel_res res; + acpi_handle handle; + void *sdw; + + handle = ACPI_HANDLE(sdev->dev); + + hdev = sdev->pdata->hw_pdata; + + memset(&res, 0, sizeof(res)); + + res.mmio_base = sdev->bar[HDA_DSP_BAR]; + res.irq = sdev->ipc_irq; + res.handle = hdev->info.handle; + res.parent = sdev->dev; + + /* + * ops and arg fields are not populated for now, + * they will be needed when the DAI callbacks are + * provided + */ + + /* we could filter links here if needed, e.g for quirks */ + res.count = hdev->info.count; + res.link_mask = hdev->info.link_mask; + + sdw = sdw_intel_probe(&res); + if (!sdw) { + dev_err(sdev->dev, "error: SoundWire probe failed\n"); + return -EINVAL; + } + + /* save context */ + hdev->sdw = sdw; + + return 0; +} + +int hda_sdw_startup(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + + return sdw_intel_startup(hdev->sdw); +} + +static int hda_sdw_exit(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + + hda_sdw_int_enable(sdev, false); + + if (hdev->sdw) + sdw_intel_exit(hdev->sdw); + hdev->sdw = NULL; + + return 0; +} +#endif + /* * Debug */ @@ -346,9 +440,12 @@ static const char *fixup_tplg_name(struct snd_sof_dev *sdev, static int hda_init_caps(struct snd_sof_dev *sdev) { struct hdac_bus *bus = sof_to_bus(sdev); + struct snd_sof_pdata *pdata = sdev->pdata; #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) struct hdac_ext_link *hlink; #endif + struct sof_intel_hda_dev *hdev = pdata->hw_pdata; + u32 link_mask; int ret = 0;

device_disable_async_suspend(bus->dev); @@ -365,6 +462,27 @@ static int hda_init_caps(struct snd_sof_dev *sdev) return ret; }

+ /* scan SoundWire capabilities exposed by DSDT */ + ret = hda_sdw_acpi_scan(sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: SoundWire ACPI scan error\n"); + return ret; + } + + link_mask = hdev->info.link_mask; + if (!link_mask) { + /* + * probe/allocated SoundWire resources. + * The hardware configuration takes place in hda_sdw_startup + * after power rails are enabled. + */ + ret = hda_sdw_probe(sdev); + if (ret < 0) { + dev_err(sdev->dev, "error: SoundWire probe error\n"); + return ret; + } + } + #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) if (bus->mlcap) snd_hdac_ext_bus_get_ml_capabilities(bus); @@ -622,6 +740,8 @@ int hda_dsp_remove(struct snd_sof_dev *sdev) snd_hdac_ext_bus_device_remove(bus); #endif

+ hda_sdw_exit(sdev); + if (!IS_ERR_OR_NULL(hda->dmic_dev)) platform_device_unregister(hda->dmic_dev);

diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 2a57fc9f3e58..928a3432e9e6 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -11,6 +11,8 @@ #ifndef __SOF_INTEL_HDA_H #define __SOF_INTEL_HDA_H

+#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_intel.h> #include <sound/compress_driver.h> #include <sound/hda_codec.h> #include <sound/hdaudio_ext.h> @@ -436,6 +438,12 @@ struct sof_intel_hda_dev {

/* delayed work to enter D0I3 opportunistically */ struct delayed_work d0i3_work; + + /* ACPI information stored between scan and probe steps */ + struct sdw_intel_acpi_info info; + + /* sdw context allocated by SoundWire driver */ + struct sdw_intel_ctx *sdw; };

static inline struct hdac_bus *sof_to_bus(struct snd_sof_dev *s) @@ -654,6 +662,42 @@ int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag); int hda_dsp_trace_release(struct snd_sof_dev *sdev); int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd);

+/* + * SoundWire support + */ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE) + +int hda_sdw_startup(struct snd_sof_dev *sdev); +void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable); + +#else + +static inline int hda_sdw_acpi_scan(struct snd_sof_dev *sdev) +{ + return 0; +} + +static inline int hda_sdw_probe(struct snd_sof_dev *sdev) +{ + return 0; +} + +static inline int hda_sdw_startup(struct snd_sof_dev *sdev) +{ + return 0; +} + +static inline int hda_sdw_exit(struct snd_sof_dev *sdev) +{ + return 0; +} + +static inline void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable) +{ +} + +#endif + /* common dai driver */ extern struct snd_soc_dai_driver skl_dai[];

These callbacks are invoked when a matching hw_params/hw_free() DAI operation takes place, and will result in IPC operations with the SOF firmware.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda.c | 71 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index c1fe94800da1..1f93124a63cd 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -24,6 +24,7 @@ #include <sound/intel-nhlt.h> #include <sound/sof.h> #include <sound/sof/xtensa.h> +#include "../sof-audio.h" #include "../ops.h" #include "hda.h"

@@ -38,6 +39,74 @@

#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)

+static int sdw_params_stream(struct device *dev, + struct sdw_intel_stream_params_data *params_data) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_soc_dai *d = params_data->dai; + struct sof_ipc_dai_config config; + struct sof_ipc_reply reply; + int link_id = params_data->link_id; + int alh_stream_id = params_data->alh_stream_id; + int ret; + u32 size = sizeof(config); + + memset(&config, 0, size); + config.hdr.size = size; + config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG; + config.type = SOF_DAI_INTEL_ALH; + config.dai_index = (link_id << 8) | (d->id); + config.alh.stream_id = alh_stream_id; + + /* send message to DSP */ + ret = sof_ipc_tx_message(sdev->ipc, + config.hdr.cmd, &config, size, &reply, + sizeof(reply)); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to set DAI hw_params for link %d dai->id %d ALH %d\n", + link_id, d->id, alh_stream_id); + } + + return ret; +} + +static int sdw_free_stream(struct device *dev, + struct sdw_intel_stream_free_data *free_data) +{ + struct snd_sof_dev *sdev = dev_get_drvdata(dev); + struct snd_soc_dai *d = free_data->dai; + struct sof_ipc_dai_config config; + struct sof_ipc_reply reply; + int link_id = free_data->link_id; + int ret; + u32 size = sizeof(config); + + memset(&config, 0, size); + config.hdr.size = size; + config.hdr.cmd = SOF_IPC_GLB_DAI_MSG | SOF_IPC_DAI_CONFIG; + config.type = SOF_DAI_INTEL_ALH; + config.dai_index = (link_id << 8) | d->id; + config.alh.stream_id = 0xFFFF; /* invalid value on purpose */ + + /* send message to DSP */ + ret = sof_ipc_tx_message(sdev->ipc, + config.hdr.cmd, &config, size, &reply, + sizeof(reply)); + if (ret < 0) { + dev_err(sdev->dev, + "error: failed to free stream for link %d dai->id %d\n", + link_id, d->id); + } + + return ret; +} + +static const struct sdw_intel_ops sdw_callback = { + .params_stream = sdw_params_stream, + .free_stream = sdw_free_stream, +}; + void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable) { sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable); @@ -80,6 +149,8 @@ static int hda_sdw_probe(struct snd_sof_dev *sdev) res.irq = sdev->ipc_irq; res.handle = hdev->info.handle; res.parent = sdev->dev; + res.ops = &sdw_callback; + res.dev = sdev->dev;

/* * ops and arg fields are not populated for now,

From: Bard Liao yung-chuan.liao@linux.intel.com

We have a single irq handler for SOF interrupts. We can further merge SoundWire ones to completely remove MSI interrupts handling issues leading to timeouts.

Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda.c | 36 ++++++++++++++++++++++++++++++++++++ sound/soc/sof/intel/hda.h | 11 +++++++++++ 2 files changed, 47 insertions(+)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index dea3c385b664..ee4f1ceca883 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -198,6 +198,38 @@ static int hda_sdw_exit(struct snd_sof_dev *sdev)

return 0; } + +static bool hda_dsp_check_sdw_irq(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + bool ret = false; + u32 irq_status; + + hdev = sdev->pdata->hw_pdata; + + if (!hdev->sdw) + return ret; + + /* store status */ + irq_status = snd_sof_dsp_read(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPIS2); + + /* invalid message ? */ + if (irq_status == 0xffffffff) + goto out; + + /* SDW message ? */ + if (irq_status & HDA_DSP_REG_ADSPIS2_SNDW) + ret = true; + +out: + return ret; +} + +static irqreturn_t hda_dsp_sdw_thread(int irq, void *context) +{ + return sdw_intel_thread(irq, context); +} + #endif

/* @@ -618,6 +650,7 @@ static irqreturn_t hda_dsp_interrupt_handler(int irq, void *context) static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context) { struct snd_sof_dev *sdev = context; + struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;

/* deal with streams and controller first */ if (hda_dsp_check_stream_irq(sdev)) @@ -626,6 +659,9 @@ static irqreturn_t hda_dsp_interrupt_thread(int irq, void *context) if (hda_dsp_check_ipc_irq(sdev)) sof_ops(sdev)->irq_thread(irq, sdev);

+ if (hda_dsp_check_sdw_irq(sdev)) + hda_dsp_sdw_thread(irq, hdev->sdw); + /* enable GIE interrupt */ snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR, SOF_HDA_INTCTL, diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 928a3432e9e6..fc104c5ba006 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -232,6 +232,8 @@ #define HDA_DSP_REG_ADSPIC2 (HDA_DSP_GEN_BASE + 0x10) #define HDA_DSP_REG_ADSPIS2 (HDA_DSP_GEN_BASE + 0x14)

+#define HDA_DSP_REG_ADSPIS2_SNDW BIT(5) + /* Intel HD Audio Inter-Processor Communication Registers */ #define HDA_DSP_IPC_BASE 0x40 #define HDA_DSP_REG_HIPCT (HDA_DSP_IPC_BASE + 0x00) @@ -696,6 +698,15 @@ static inline void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable) { }

+static inline bool hda_dsp_check_sdw_irq(struct snd_sof_dev *sdev) +{ + return false; +} + +static inline irqreturn_t hda_dsp_sdw_thread(int irq, void *context) +{ + return IRQ_HANDLED; +} #endif

/* common dai driver */

From: Rander Wang rander.wang@intel.com

When a SoundWire link is in clock stop state, a Slave device may wake up the Master for some events such as jack detection. The WAKEEN interrupt will be triggered and processed by the audio pci device.

If audio device is in D3, the interrupt will be routed to PME, or aggregated at cAVS level as interrupt when audio device is in D0. This patch only supports D3 case, where the audio pci device will be resumed by a PME event and the WAKEEN interrupt will be processed after audio pci device is powered up and ROM is initialized successfully.

The WAKEEN handling is only enabled after the first boot due to dependencies on a shim_lock mutex being initialized.

Signed-off-by: Rander Wang rander.wang@intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda-loader.c | 18 ++++++++++++++++++ sound/soc/sof/intel/hda.c | 11 +++++++++++ sound/soc/sof/intel/hda.h | 5 +++++ 3 files changed, 34 insertions(+)

diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index 2ae94ea53122..e1550ccd0a49 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -346,6 +346,24 @@ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev) goto cleanup; }

+ /* + * When a SoundWire link is in clock stop state, a Slave + * device may trigger in-band wakes for events such as jack + * insertion or acoustic event detection. This event will lead + * to a WAKEEN interrupt, handled by the PCI device and routed + * to PME if the PCI device is in D3. The resume function in + * audio PCI driver will be invoked by ACPI for PME event and + * initialize the device and process WAKEEN interrupt. + * + * The WAKEEN interrupt should be processed ASAP to prevent an + * interrupt flood, otherwise other interrupts, such IPC, + * cannot work normally. The WAKEEN is handled after the ROM + * is initialized successfully, which ensures power rails are + * enabled before accessing the SoundWire SHIM registers + */ + if (!sdev->first_boot) + hda_sdw_process_wakeen(sdev); + /* * at this point DSP ROM has been initialized and * should be ready for code loading and firmware boot diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 1e69cfcee8e0..7d1aa4c7d82c 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -241,6 +241,17 @@ static irqreturn_t hda_dsp_sdw_thread(int irq, void *context) return sdw_intel_thread(irq, context); }

+void hda_sdw_process_wakeen(struct snd_sof_dev *sdev) +{ + struct sof_intel_hda_dev *hdev; + + hdev = sdev->pdata->hw_pdata; + if (!hdev->sdw) + return; + + sdw_intel_process_wakeen_event(hdev->sdw); +} + #endif

/* diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index fc104c5ba006..6f1765b1ed1d 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -671,6 +671,7 @@ int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd);

int hda_sdw_startup(struct snd_sof_dev *sdev); void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable); +void hda_sdw_process_wakeen(struct snd_sof_dev *sdev);

#else

@@ -707,6 +708,10 @@ static inline irqreturn_t hda_dsp_sdw_thread(int irq, void *context) { return IRQ_HANDLED; } + +static inline void hda_sdw_process_wakeen(struct snd_sof_dev *sdev) +{ +} #endif

/* common dai driver */

Without this cycle, HDaudio capability parsing fails on some devices.

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda-ctrl.c | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/sound/soc/sof/intel/hda-ctrl.c b/sound/soc/sof/intel/hda-ctrl.c index f88dbcc4ba66..6288b2f99540 100644 --- a/sound/soc/sof/intel/hda-ctrl.c +++ b/sound/soc/sof/intel/hda-ctrl.c @@ -65,15 +65,32 @@ int hda_dsp_ctrl_get_caps(struct snd_sof_dev *sdev) struct hdac_bus *bus = sof_to_bus(sdev); u32 cap, offset, feature; int count = 0; + int ret; + + /* + * On some devices, one reset cycle is necessary before reading + * capabilities + */ + ret = hda_dsp_ctrl_link_reset(sdev, true); + if (ret < 0) + return ret; + ret = hda_dsp_ctrl_link_reset(sdev, false); + if (ret < 0) + return ret;

offset = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, SOF_HDA_LLCH);

do { - cap = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, offset); - dev_dbg(sdev->dev, "checking for capabilities at offset 0x%x\n", offset & SOF_HDA_CAP_NEXT_MASK);

+ cap = snd_sof_dsp_read(sdev, HDA_DSP_HDA_BAR, offset); + + if (cap == -1) { + dev_dbg(bus->dev, "Invalid capability reg read\n"); + break; + } + feature = (cap & SOF_HDA_CAP_ID_MASK) >> SOF_HDA_CAP_ID_OFF;

switch (feature) { @@ -106,8 +123,8 @@ int hda_dsp_ctrl_get_caps(struct snd_sof_dev *sdev) bus->mlcap = bus->remap_addr + offset; break; default: - dev_vdbg(sdev->dev, "found capability %d at 0x%x\n", - feature, offset); + dev_dbg(sdev->dev, "found capability %d at 0x%x\n", + feature, offset); break; }