| // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
| // Copyright(c) 2023 Intel Corporation |
| |
| /* |
| * Soundwire Intel ops for LunarLake |
| */ |
| |
| #include <linux/acpi.h> |
| #include <linux/cleanup.h> |
| #include <linux/device.h> |
| #include <linux/soundwire/sdw_registers.h> |
| #include <linux/soundwire/sdw.h> |
| #include <linux/soundwire/sdw_intel.h> |
| #include <sound/hdaudio.h> |
| #include <sound/hda-mlink.h> |
| #include <sound/hda_register.h> |
| #include <sound/pcm_params.h> |
| #include "cadence_master.h" |
| #include "bus.h" |
| #include "intel.h" |
| |
| /* |
| * shim vendor-specific (vs) ops |
| */ |
| |
| static void intel_shim_vs_init(struct sdw_intel *sdw) |
| { |
| void __iomem *shim_vs = sdw->link_res->shim_vs; |
| struct sdw_bus *bus = &sdw->cdns.bus; |
| struct sdw_intel_prop *intel_prop; |
| u16 clde; |
| u16 doaise2; |
| u16 dodse2; |
| u16 clds; |
| u16 clss; |
| u16 doaise; |
| u16 doais; |
| u16 dodse; |
| u16 dods; |
| u16 act; |
| |
| intel_prop = bus->vendor_specific_prop; |
| clde = intel_prop->clde; |
| doaise2 = intel_prop->doaise2; |
| dodse2 = intel_prop->dodse2; |
| clds = intel_prop->clds; |
| clss = intel_prop->clss; |
| doaise = intel_prop->doaise; |
| doais = intel_prop->doais; |
| dodse = intel_prop->dodse; |
| dods = intel_prop->dods; |
| |
| act = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL); |
| u16p_replace_bits(&act, clde, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDE); |
| u16p_replace_bits(&act, doaise2, SDW_SHIM3_INTEL_VS_ACTMCTL_DOAISE2); |
| u16p_replace_bits(&act, dodse2, SDW_SHIM3_INTEL_VS_ACTMCTL_DODSE2); |
| u16p_replace_bits(&act, clds, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDS); |
| u16p_replace_bits(&act, clss, SDW_SHIM3_INTEL_VS_ACTMCTL_CLSS); |
| u16p_replace_bits(&act, doaise, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAISE); |
| u16p_replace_bits(&act, doais, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS); |
| u16p_replace_bits(&act, dodse, SDW_SHIM2_INTEL_VS_ACTMCTL_DODSE); |
| u16p_replace_bits(&act, dods, SDW_SHIM2_INTEL_VS_ACTMCTL_DODS); |
| act |= SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE; |
| intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL, act); |
| usleep_range(10, 15); |
| } |
| |
| static void intel_shim_vs_set_clock_source(struct sdw_intel *sdw, u32 source) |
| { |
| void __iomem *shim_vs = sdw->link_res->shim_vs; |
| u32 val; |
| |
| val = intel_readl(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL); |
| |
| u32p_replace_bits(&val, source, SDW_SHIM2_INTEL_VS_LVSCTL_MLCS); |
| |
| intel_writel(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL, val); |
| |
| dev_dbg(sdw->cdns.dev, "clock source %d LVSCTL %#x\n", source, val); |
| } |
| |
| static int intel_shim_check_wake(struct sdw_intel *sdw) |
| { |
| /* |
| * We follow the HDaudio example and resume unconditionally |
| * without checking the WAKESTS bit for that specific link |
| */ |
| |
| return 1; |
| } |
| |
| static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable) |
| { |
| u16 lsdiid = 0; |
| u16 wake_en; |
| u16 wake_sts; |
| int ret; |
| |
| mutex_lock(sdw->link_res->shim_lock); |
| |
| ret = hdac_bus_eml_sdw_get_lsdiid_unlocked(sdw->link_res->hbus, sdw->instance, &lsdiid); |
| if (ret < 0) |
| goto unlock; |
| |
| wake_en = snd_hdac_chip_readw(sdw->link_res->hbus, WAKEEN); |
| |
| if (wake_enable) { |
| /* Enable the wakeup */ |
| wake_en |= lsdiid; |
| |
| snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en); |
| } else { |
| /* Disable the wake up interrupt */ |
| wake_en &= ~lsdiid; |
| snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en); |
| |
| /* Clear wake status (W1C) */ |
| wake_sts = snd_hdac_chip_readw(sdw->link_res->hbus, STATESTS); |
| wake_sts |= lsdiid; |
| snd_hdac_chip_writew(sdw->link_res->hbus, STATESTS, wake_sts); |
| } |
| unlock: |
| mutex_unlock(sdw->link_res->shim_lock); |
| } |
| |
| static int intel_link_power_up(struct sdw_intel *sdw) |
| { |
| struct sdw_bus *bus = &sdw->cdns.bus; |
| struct sdw_master_prop *prop = &bus->prop; |
| u32 *shim_mask = sdw->link_res->shim_mask; |
| unsigned int link_id = sdw->instance; |
| u32 clock_source; |
| u32 syncprd; |
| int ret; |
| |
| if (prop->mclk_freq % 6000000) { |
| if (prop->mclk_freq % 2400000) { |
| syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_24_576; |
| clock_source = SDW_SHIM2_MLCS_CARDINAL_CLK; |
| } else { |
| syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_38_4; |
| clock_source = SDW_SHIM2_MLCS_XTAL_CLK; |
| } |
| } else { |
| syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_96; |
| clock_source = SDW_SHIM2_MLCS_AUDIO_PLL_CLK; |
| } |
| |
| mutex_lock(sdw->link_res->shim_lock); |
| |
| ret = hdac_bus_eml_sdw_power_up_unlocked(sdw->link_res->hbus, link_id); |
| if (ret < 0) { |
| dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_up failed: %d\n", |
| __func__, ret); |
| goto out; |
| } |
| |
| intel_shim_vs_set_clock_source(sdw, clock_source); |
| |
| if (!*shim_mask) { |
| /* we first need to program the SyncPRD/CPU registers */ |
| dev_dbg(sdw->cdns.dev, "first link up, programming SYNCPRD\n"); |
| |
| ret = hdac_bus_eml_sdw_set_syncprd_unlocked(sdw->link_res->hbus, syncprd); |
| if (ret < 0) { |
| dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_set_syncprd failed: %d\n", |
| __func__, ret); |
| goto out; |
| } |
| |
| /* SYNCPU will change once link is active */ |
| ret = hdac_bus_eml_sdw_wait_syncpu_unlocked(sdw->link_res->hbus); |
| if (ret < 0) { |
| dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_wait_syncpu failed: %d\n", |
| __func__, ret); |
| goto out; |
| } |
| } |
| |
| *shim_mask |= BIT(link_id); |
| |
| sdw->cdns.link_up = true; |
| |
| intel_shim_vs_init(sdw); |
| |
| out: |
| mutex_unlock(sdw->link_res->shim_lock); |
| |
| return ret; |
| } |
| |
| static int intel_link_power_down(struct sdw_intel *sdw) |
| { |
| u32 *shim_mask = sdw->link_res->shim_mask; |
| unsigned int link_id = sdw->instance; |
| int ret; |
| |
| mutex_lock(sdw->link_res->shim_lock); |
| |
| sdw->cdns.link_up = false; |
| |
| *shim_mask &= ~BIT(link_id); |
| |
| ret = hdac_bus_eml_sdw_power_down_unlocked(sdw->link_res->hbus, link_id); |
| if (ret < 0) { |
| dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_down failed: %d\n", |
| __func__, ret); |
| |
| /* |
| * we leave the sdw->cdns.link_up flag as false since we've disabled |
| * the link at this point and cannot handle interrupts any longer. |
| */ |
| } |
| |
| mutex_unlock(sdw->link_res->shim_lock); |
| |
| return ret; |
| } |
| |
| static void intel_sync_arm(struct sdw_intel *sdw) |
| { |
| unsigned int link_id = sdw->instance; |
| |
| mutex_lock(sdw->link_res->shim_lock); |
| |
| hdac_bus_eml_sdw_sync_arm_unlocked(sdw->link_res->hbus, link_id); |
| |
| mutex_unlock(sdw->link_res->shim_lock); |
| } |
| |
| static int intel_sync_go_unlocked(struct sdw_intel *sdw) |
| { |
| int ret; |
| |
| ret = hdac_bus_eml_sdw_sync_go_unlocked(sdw->link_res->hbus); |
| if (ret < 0) |
| dev_err(sdw->cdns.dev, "%s: SyncGO clear failed: %d\n", __func__, ret); |
| |
| return ret; |
| } |
| |
| static int intel_sync_go(struct sdw_intel *sdw) |
| { |
| int ret; |
| |
| mutex_lock(sdw->link_res->shim_lock); |
| |
| ret = intel_sync_go_unlocked(sdw); |
| |
| mutex_unlock(sdw->link_res->shim_lock); |
| |
| return ret; |
| } |
| |
| static bool intel_check_cmdsync_unlocked(struct sdw_intel *sdw) |
| { |
| return hdac_bus_eml_sdw_check_cmdsync_unlocked(sdw->link_res->hbus); |
| } |
| |
| /* DAI callbacks */ |
| static int intel_params_stream(struct sdw_intel *sdw, |
| struct snd_pcm_substream *substream, |
| struct snd_soc_dai *dai, |
| struct snd_pcm_hw_params *hw_params, |
| int link_id, int alh_stream_id) |
| { |
| struct sdw_intel_link_res *res = sdw->link_res; |
| struct sdw_intel_stream_params_data params_data; |
| |
| params_data.substream = substream; |
| params_data.dai = dai; |
| params_data.hw_params = hw_params; |
| params_data.link_id = link_id; |
| params_data.alh_stream_id = alh_stream_id; |
| |
| if (res->ops && res->ops->params_stream && res->dev) |
| return res->ops->params_stream(res->dev, |
| ¶ms_data); |
| return -EIO; |
| } |
| |
| static int intel_free_stream(struct sdw_intel *sdw, |
| struct snd_pcm_substream *substream, |
| struct snd_soc_dai *dai, |
| int link_id) |
| |
| { |
| struct sdw_intel_link_res *res = sdw->link_res; |
| struct sdw_intel_stream_free_data free_data; |
| |
| free_data.substream = substream; |
| free_data.dai = dai; |
| free_data.link_id = link_id; |
| |
| if (res->ops && res->ops->free_stream && res->dev) |
| return res->ops->free_stream(res->dev, |
| &free_data); |
| |
| return 0; |
| } |
| |
| /* |
| * DAI operations |
| */ |
| static int intel_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *params, |
| struct snd_soc_dai *dai) |
| { |
| struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); |
| struct sdw_intel *sdw = cdns_to_intel(cdns); |
| struct sdw_cdns_dai_runtime *dai_runtime; |
| struct sdw_cdns_pdi *pdi; |
| struct sdw_stream_config sconfig; |
| int ch, dir; |
| int ret; |
| |
| dai_runtime = cdns->dai_runtime_array[dai->id]; |
| if (!dai_runtime) |
| return -EIO; |
| |
| ch = params_channels(params); |
| if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| dir = SDW_DATA_DIR_RX; |
| else |
| dir = SDW_DATA_DIR_TX; |
| |
| pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id); |
| if (!pdi) |
| return -EINVAL; |
| |
| /* use same definitions for alh_id as previous generations */ |
| pdi->intel_alh_id = (sdw->instance * 16) + pdi->num + 3; |
| if (pdi->num >= 2) |
| pdi->intel_alh_id += 2; |
| |
| /* the SHIM will be configured in the callback functions */ |
| |
| sdw_cdns_config_stream(cdns, ch, dir, pdi); |
| |
| /* store pdi and state, may be needed in prepare step */ |
| dai_runtime->paused = false; |
| dai_runtime->suspended = false; |
| dai_runtime->pdi = pdi; |
| |
| /* Inform DSP about PDI stream number */ |
| ret = intel_params_stream(sdw, substream, dai, params, |
| sdw->instance, |
| pdi->intel_alh_id); |
| if (ret) |
| return ret; |
| |
| sconfig.direction = dir; |
| sconfig.ch_count = ch; |
| sconfig.frame_rate = params_rate(params); |
| sconfig.type = dai_runtime->stream_type; |
| |
| sconfig.bps = snd_pcm_format_width(params_format(params)); |
| |
| /* Port configuration */ |
| struct sdw_port_config *pconfig __free(kfree) = kzalloc(sizeof(*pconfig), |
| GFP_KERNEL); |
| if (!pconfig) |
| return -ENOMEM; |
| |
| pconfig->num = pdi->num; |
| pconfig->ch_mask = (1 << ch) - 1; |
| |
| ret = sdw_stream_add_master(&cdns->bus, &sconfig, |
| pconfig, 1, dai_runtime->stream); |
| if (ret) |
| dev_err(cdns->dev, "add master to stream failed:%d\n", ret); |
| |
| return ret; |
| } |
| |
| static int intel_prepare(struct snd_pcm_substream *substream, |
| struct snd_soc_dai *dai) |
| { |
| struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); |
| struct sdw_intel *sdw = cdns_to_intel(cdns); |
| struct sdw_cdns_dai_runtime *dai_runtime; |
| int ch, dir; |
| int ret = 0; |
| |
| dai_runtime = cdns->dai_runtime_array[dai->id]; |
| if (!dai_runtime) { |
| dev_err(dai->dev, "failed to get dai runtime in %s\n", |
| __func__); |
| return -EIO; |
| } |
| |
| if (dai_runtime->suspended) { |
| struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
| struct snd_pcm_hw_params *hw_params; |
| |
| hw_params = &rtd->dpcm[substream->stream].hw_params; |
| |
| dai_runtime->suspended = false; |
| |
| /* |
| * .prepare() is called after system resume, where we |
| * need to reinitialize the SHIM/ALH/Cadence IP. |
| * .prepare() is also called to deal with underflows, |
| * but in those cases we cannot touch ALH/SHIM |
| * registers |
| */ |
| |
| /* configure stream */ |
| ch = params_channels(hw_params); |
| if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) |
| dir = SDW_DATA_DIR_RX; |
| else |
| dir = SDW_DATA_DIR_TX; |
| |
| /* the SHIM will be configured in the callback functions */ |
| |
| sdw_cdns_config_stream(cdns, ch, dir, dai_runtime->pdi); |
| |
| /* Inform DSP about PDI stream number */ |
| ret = intel_params_stream(sdw, substream, dai, |
| hw_params, |
| sdw->instance, |
| dai_runtime->pdi->intel_alh_id); |
| } |
| |
| return ret; |
| } |
| |
| static int |
| intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) |
| { |
| struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); |
| struct sdw_intel *sdw = cdns_to_intel(cdns); |
| struct sdw_cdns_dai_runtime *dai_runtime; |
| int ret; |
| |
| dai_runtime = cdns->dai_runtime_array[dai->id]; |
| if (!dai_runtime) |
| return -EIO; |
| |
| /* |
| * The sdw stream state will transition to RELEASED when stream-> |
| * master_list is empty. So the stream state will transition to |
| * DEPREPARED for the first cpu-dai and to RELEASED for the last |
| * cpu-dai. |
| */ |
| ret = sdw_stream_remove_master(&cdns->bus, dai_runtime->stream); |
| if (ret < 0) { |
| dev_err(dai->dev, "remove master from stream %s failed: %d\n", |
| dai_runtime->stream->name, ret); |
| return ret; |
| } |
| |
| ret = intel_free_stream(sdw, substream, dai, sdw->instance); |
| if (ret < 0) { |
| dev_err(dai->dev, "intel_free_stream: failed %d\n", ret); |
| return ret; |
| } |
| |
| dai_runtime->pdi = NULL; |
| |
| return 0; |
| } |
| |
| static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai, |
| void *stream, int direction) |
| { |
| return cdns_set_sdw_stream(dai, stream, direction); |
| } |
| |
| static void *intel_get_sdw_stream(struct snd_soc_dai *dai, |
| int direction) |
| { |
| struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); |
| struct sdw_cdns_dai_runtime *dai_runtime; |
| |
| dai_runtime = cdns->dai_runtime_array[dai->id]; |
| if (!dai_runtime) |
| return ERR_PTR(-EINVAL); |
| |
| return dai_runtime->stream; |
| } |
| |
| static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) |
| { |
| struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); |
| struct sdw_intel *sdw = cdns_to_intel(cdns); |
| struct sdw_intel_link_res *res = sdw->link_res; |
| struct sdw_cdns_dai_runtime *dai_runtime; |
| int ret = 0; |
| |
| /* |
| * The .trigger callback is used to program HDaudio DMA and send required IPC to audio |
| * firmware. |
| */ |
| if (res->ops && res->ops->trigger) { |
| ret = res->ops->trigger(substream, cmd, dai); |
| if (ret < 0) |
| return ret; |
| } |
| |
| dai_runtime = cdns->dai_runtime_array[dai->id]; |
| if (!dai_runtime) { |
| dev_err(dai->dev, "failed to get dai runtime in %s\n", |
| __func__); |
| return -EIO; |
| } |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| |
| /* |
| * The .prepare callback is used to deal with xruns and resume operations. |
| * In the case of xruns, the DMAs and SHIM registers cannot be touched, |
| * but for resume operations the DMAs and SHIM registers need to be initialized. |
| * the .trigger callback is used to track the suspend case only. |
| */ |
| |
| dai_runtime->suspended = true; |
| |
| break; |
| |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| dai_runtime->paused = true; |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| dai_runtime->paused = false; |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static const struct snd_soc_dai_ops intel_pcm_dai_ops = { |
| .hw_params = intel_hw_params, |
| .prepare = intel_prepare, |
| .hw_free = intel_hw_free, |
| .trigger = intel_trigger, |
| .set_stream = intel_pcm_set_sdw_stream, |
| .get_stream = intel_get_sdw_stream, |
| }; |
| |
| static const struct snd_soc_component_driver dai_component = { |
| .name = "soundwire", |
| }; |
| |
| /* |
| * PDI routines |
| */ |
| static void intel_pdi_init(struct sdw_intel *sdw, |
| struct sdw_cdns_stream_config *config) |
| { |
| void __iomem *shim = sdw->link_res->shim; |
| int pcm_cap; |
| |
| /* PCM Stream Capability */ |
| pcm_cap = intel_readw(shim, SDW_SHIM2_PCMSCAP); |
| |
| config->pcm_bd = FIELD_GET(SDW_SHIM2_PCMSCAP_BSS, pcm_cap); |
| config->pcm_in = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap); |
| config->pcm_out = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap); |
| |
| dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n", |
| config->pcm_bd, config->pcm_in, config->pcm_out); |
| } |
| |
| static int |
| intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num) |
| { |
| void __iomem *shim = sdw->link_res->shim; |
| |
| /* zero based values for channel count in register */ |
| return intel_readw(shim, SDW_SHIM2_PCMSYCHC(pdi_num)) + 1; |
| } |
| |
| static void intel_pdi_get_ch_update(struct sdw_intel *sdw, |
| struct sdw_cdns_pdi *pdi, |
| unsigned int num_pdi, |
| unsigned int *num_ch) |
| { |
| int ch_count = 0; |
| int i; |
| |
| for (i = 0; i < num_pdi; i++) { |
| pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num); |
| ch_count += pdi->ch_count; |
| pdi++; |
| } |
| |
| *num_ch = ch_count; |
| } |
| |
| static void intel_pdi_stream_ch_update(struct sdw_intel *sdw, |
| struct sdw_cdns_streams *stream) |
| { |
| intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd, |
| &stream->num_ch_bd); |
| |
| intel_pdi_get_ch_update(sdw, stream->in, stream->num_in, |
| &stream->num_ch_in); |
| |
| intel_pdi_get_ch_update(sdw, stream->out, stream->num_out, |
| &stream->num_ch_out); |
| } |
| |
| static int intel_create_dai(struct sdw_cdns *cdns, |
| struct snd_soc_dai_driver *dais, |
| enum intel_pdi_type type, |
| u32 num, u32 off, u32 max_ch) |
| { |
| int i; |
| |
| if (!num) |
| return 0; |
| |
| for (i = off; i < (off + num); i++) { |
| dais[i].name = devm_kasprintf(cdns->dev, GFP_KERNEL, |
| "SDW%d Pin%d", |
| cdns->instance, i); |
| if (!dais[i].name) |
| return -ENOMEM; |
| |
| if (type == INTEL_PDI_BD || type == INTEL_PDI_OUT) { |
| dais[i].playback.channels_min = 1; |
| dais[i].playback.channels_max = max_ch; |
| } |
| |
| if (type == INTEL_PDI_BD || type == INTEL_PDI_IN) { |
| dais[i].capture.channels_min = 1; |
| dais[i].capture.channels_max = max_ch; |
| } |
| |
| dais[i].ops = &intel_pcm_dai_ops; |
| } |
| |
| return 0; |
| } |
| |
| static int intel_register_dai(struct sdw_intel *sdw) |
| { |
| struct sdw_cdns_dai_runtime **dai_runtime_array; |
| struct sdw_cdns_stream_config config; |
| struct sdw_cdns *cdns = &sdw->cdns; |
| struct sdw_cdns_streams *stream; |
| struct snd_soc_dai_driver *dais; |
| int num_dai; |
| int ret; |
| int off = 0; |
| |
| /* Read the PDI config and initialize cadence PDI */ |
| intel_pdi_init(sdw, &config); |
| ret = sdw_cdns_pdi_init(cdns, config); |
| if (ret) |
| return ret; |
| |
| intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm); |
| |
| /* DAIs are created based on total number of PDIs supported */ |
| num_dai = cdns->pcm.num_pdi; |
| |
| dai_runtime_array = devm_kcalloc(cdns->dev, num_dai, |
| sizeof(struct sdw_cdns_dai_runtime *), |
| GFP_KERNEL); |
| if (!dai_runtime_array) |
| return -ENOMEM; |
| cdns->dai_runtime_array = dai_runtime_array; |
| |
| dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL); |
| if (!dais) |
| return -ENOMEM; |
| |
| /* Create PCM DAIs */ |
| stream = &cdns->pcm; |
| |
| ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in, |
| off, stream->num_ch_in); |
| if (ret) |
| return ret; |
| |
| off += cdns->pcm.num_in; |
| ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out, |
| off, stream->num_ch_out); |
| if (ret) |
| return ret; |
| |
| off += cdns->pcm.num_out; |
| ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd, |
| off, stream->num_ch_bd); |
| if (ret) |
| return ret; |
| |
| return devm_snd_soc_register_component(cdns->dev, &dai_component, |
| dais, num_dai); |
| } |
| |
| static void intel_program_sdi(struct sdw_intel *sdw, int dev_num) |
| { |
| int ret; |
| |
| ret = hdac_bus_eml_sdw_set_lsdiid(sdw->link_res->hbus, sdw->instance, dev_num); |
| if (ret < 0) |
| dev_err(sdw->cdns.dev, "%s: could not set lsdiid for link %d %d\n", |
| __func__, sdw->instance, dev_num); |
| } |
| |
| static int intel_get_link_count(struct sdw_intel *sdw) |
| { |
| int ret; |
| |
| ret = hdac_bus_eml_get_count(sdw->link_res->hbus, true, AZX_REG_ML_LEPTR_ID_SDW); |
| if (!ret) { |
| dev_err(sdw->cdns.dev, "%s: could not retrieve link count\n", __func__); |
| return -ENODEV; |
| } |
| |
| if (ret > SDW_INTEL_MAX_LINKS) { |
| dev_err(sdw->cdns.dev, "%s: link count %d exceed max %d\n", __func__, ret, SDW_INTEL_MAX_LINKS); |
| return -EINVAL; |
| } |
| |
| return ret; |
| } |
| |
| const struct sdw_intel_hw_ops sdw_intel_lnl_hw_ops = { |
| .debugfs_init = intel_ace2x_debugfs_init, |
| .debugfs_exit = intel_ace2x_debugfs_exit, |
| |
| .get_link_count = intel_get_link_count, |
| |
| .register_dai = intel_register_dai, |
| |
| .check_clock_stop = intel_check_clock_stop, |
| .start_bus = intel_start_bus, |
| .start_bus_after_reset = intel_start_bus_after_reset, |
| .start_bus_after_clock_stop = intel_start_bus_after_clock_stop, |
| .stop_bus = intel_stop_bus, |
| |
| .link_power_up = intel_link_power_up, |
| .link_power_down = intel_link_power_down, |
| |
| .shim_check_wake = intel_shim_check_wake, |
| .shim_wake = intel_shim_wake, |
| |
| .pre_bank_switch = intel_pre_bank_switch, |
| .post_bank_switch = intel_post_bank_switch, |
| |
| .sync_arm = intel_sync_arm, |
| .sync_go_unlocked = intel_sync_go_unlocked, |
| .sync_go = intel_sync_go, |
| .sync_check_cmdsync_unlocked = intel_check_cmdsync_unlocked, |
| |
| .program_sdi = intel_program_sdi, |
| }; |
| EXPORT_SYMBOL_NS(sdw_intel_lnl_hw_ops, SOUNDWIRE_INTEL); |
| |
| MODULE_IMPORT_NS(SND_SOC_SOF_HDA_MLINK); |