1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2022 Intel Corporation. All rights reserved. 7 // 8 9 #include <sound/pcm_params.h> 10 #include <sound/sof/ipc4/header.h> 11 #include "sof-audio.h" 12 #include "sof-priv.h" 13 #include "ipc4-priv.h" 14 #include "ipc4-topology.h" 15 16 int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state) 17 { 18 struct sof_ipc4_msg msg = {{ 0 }}; 19 u32 primary; 20 21 dev_dbg(sdev->dev, "ipc4 set pipeline %d state %d", id, state); 22 23 primary = state; 24 primary |= SOF_IPC4_GLB_PIPE_STATE_ID(id); 25 primary |= SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_GLB_SET_PIPELINE_STATE); 26 primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST); 27 primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_FW_GEN_MSG); 28 29 msg.primary = primary; 30 31 return sof_ipc_tx_message(sdev->ipc, &msg, 0, NULL, 0); 32 } 33 EXPORT_SYMBOL(sof_ipc4_set_pipeline_state); 34 35 static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component, 36 struct snd_pcm_substream *substream, int state) 37 { 38 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); 39 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 40 struct snd_sof_widget *pipeline_widget; 41 struct snd_soc_dapm_widget_list *list; 42 struct snd_soc_dapm_widget *widget; 43 struct sof_ipc4_pipeline *pipeline; 44 struct snd_sof_widget *swidget; 45 struct snd_sof_pcm *spcm; 46 int ret = 0; 47 int num_widgets; 48 49 spcm = snd_sof_find_spcm_dai(component, rtd); 50 if (!spcm) 51 return -EINVAL; 52 53 list = spcm->stream[substream->stream].list; 54 55 for_each_dapm_widgets(list, num_widgets, widget) { 56 swidget = widget->dobj.private; 57 58 if (!swidget) 59 continue; 60 61 /* 62 * set pipeline state for both FE and BE pipelines for RUNNING state. 63 * For PAUSE/RESET, set the pipeline state only for the FE pipeline. 64 */ 65 switch (state) { 66 case SOF_IPC4_PIPE_PAUSED: 67 case SOF_IPC4_PIPE_RESET: 68 if (!WIDGET_IS_AIF(swidget->id)) 69 continue; 70 break; 71 default: 72 break; 73 } 74 75 /* find pipeline widget for the pipeline that this widget belongs to */ 76 pipeline_widget = swidget->pipe_widget; 77 pipeline = (struct sof_ipc4_pipeline *)pipeline_widget->private; 78 79 if (pipeline->state == state) 80 continue; 81 82 /* first set the pipeline to PAUSED state */ 83 if (pipeline->state != SOF_IPC4_PIPE_PAUSED) { 84 ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id, 85 SOF_IPC4_PIPE_PAUSED); 86 if (ret < 0) { 87 dev_err(sdev->dev, "failed to pause pipeline %d\n", 88 swidget->pipeline_id); 89 return ret; 90 } 91 } 92 93 pipeline->state = SOF_IPC4_PIPE_PAUSED; 94 95 if (pipeline->state == state) 96 continue; 97 98 /* then set the final state */ 99 ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id, state); 100 if (ret < 0) { 101 dev_err(sdev->dev, "failed to set state %d for pipeline %d\n", 102 state, swidget->pipeline_id); 103 break; 104 } 105 106 pipeline->state = state; 107 } 108 109 return ret; 110 } 111 112 static int sof_ipc4_pcm_trigger(struct snd_soc_component *component, 113 struct snd_pcm_substream *substream, int cmd) 114 { 115 int state; 116 117 /* determine the pipeline state */ 118 switch (cmd) { 119 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 120 state = SOF_IPC4_PIPE_PAUSED; 121 break; 122 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 123 case SNDRV_PCM_TRIGGER_RESUME: 124 case SNDRV_PCM_TRIGGER_START: 125 state = SOF_IPC4_PIPE_RUNNING; 126 break; 127 case SNDRV_PCM_TRIGGER_SUSPEND: 128 case SNDRV_PCM_TRIGGER_STOP: 129 state = SOF_IPC4_PIPE_PAUSED; 130 break; 131 default: 132 dev_err(component->dev, "%s: unhandled trigger cmd %d\n", __func__, cmd); 133 return -EINVAL; 134 } 135 136 /* set the pipeline state */ 137 return sof_ipc4_trigger_pipelines(component, substream, state); 138 } 139 140 static int sof_ipc4_pcm_hw_free(struct snd_soc_component *component, 141 struct snd_pcm_substream *substream) 142 { 143 return sof_ipc4_trigger_pipelines(component, substream, SOF_IPC4_PIPE_RESET); 144 } 145 146 static void ipc4_ssp_dai_config_pcm_params_match(struct snd_sof_dev *sdev, const char *link_name, 147 struct snd_pcm_hw_params *params) 148 { 149 struct snd_sof_dai_link *slink; 150 struct snd_sof_dai *dai; 151 bool dai_link_found = false; 152 int i; 153 154 list_for_each_entry(slink, &sdev->dai_link_list, list) { 155 if (!strcmp(slink->link->name, link_name)) { 156 dai_link_found = true; 157 break; 158 } 159 } 160 161 if (!dai_link_found) 162 return; 163 164 for (i = 0; i < slink->num_hw_configs; i++) { 165 struct snd_soc_tplg_hw_config *hw_config = &slink->hw_configs[i]; 166 167 if (params_rate(params) == le32_to_cpu(hw_config->fsync_rate)) { 168 /* set current config for all DAI's with matching name */ 169 list_for_each_entry(dai, &sdev->dai_list, list) 170 if (!strcmp(slink->link->name, dai->name)) 171 dai->current_config = le32_to_cpu(hw_config->id); 172 break; 173 } 174 } 175 } 176 177 static int sof_ipc4_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, 178 struct snd_pcm_hw_params *params) 179 { 180 struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME); 181 struct snd_sof_dai *dai = snd_sof_find_dai(component, rtd->dai_link->name); 182 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 183 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 184 struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); 185 struct sof_ipc4_copier *ipc4_copier; 186 struct snd_soc_dpcm *dpcm; 187 188 if (!dai) { 189 dev_err(component->dev, "%s: No DAI found with name %s\n", __func__, 190 rtd->dai_link->name); 191 return -EINVAL; 192 } 193 194 ipc4_copier = dai->private; 195 if (!ipc4_copier) { 196 dev_err(component->dev, "%s: No private data found for DAI %s\n", 197 __func__, rtd->dai_link->name); 198 return -EINVAL; 199 } 200 201 /* always set BE format to 32-bits for both playback and capture */ 202 snd_mask_none(fmt); 203 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE); 204 205 rate->min = ipc4_copier->available_fmt.base_config->audio_fmt.sampling_frequency; 206 rate->max = rate->min; 207 208 /* 209 * Set trigger order for capture to SND_SOC_DPCM_TRIGGER_PRE. This is required 210 * to ensure that the BE DAI pipeline gets stopped/suspended before the FE DAI 211 * pipeline gets triggered and the pipeline widgets are freed. 212 */ 213 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_CAPTURE, dpcm) { 214 struct snd_soc_pcm_runtime *fe = dpcm->fe; 215 216 fe->dai_link->trigger[SNDRV_PCM_STREAM_CAPTURE] = SND_SOC_DPCM_TRIGGER_PRE; 217 } 218 219 switch (ipc4_copier->dai_type) { 220 case SOF_DAI_INTEL_SSP: 221 ipc4_ssp_dai_config_pcm_params_match(sdev, (char *)rtd->dai_link->name, params); 222 break; 223 default: 224 break; 225 } 226 227 return 0; 228 } 229 230 const struct sof_ipc_pcm_ops ipc4_pcm_ops = { 231 .trigger = sof_ipc4_pcm_trigger, 232 .hw_free = sof_ipc4_pcm_hw_free, 233 .dai_link_fixup = sof_ipc4_pcm_dai_link_fixup, 234 }; 235