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/linux-6.15/sound/drivers/
Daloop.c72 int (*open)(struct loopback_pcm *dpcm);
76 int (*start)(struct loopback_pcm *dpcm);
80 int (*stop)(struct loopback_pcm *dpcm);
82 int (*stop_sync)(struct loopback_pcm *dpcm);
84 int (*close_substream)(struct loopback_pcm *dpcm);
88 int (*close_cable)(struct loopback_pcm *dpcm);
94 void (*dpcm_info)(struct loopback_pcm *dpcm,
170 static inline unsigned int byte_pos(struct loopback_pcm *dpcm, unsigned int x) in byte_pos() argument
172 if (dpcm->pcm_rate_shift == NO_PITCH) { in byte_pos()
176 HZ * (unsigned long long)dpcm->pcm_rate_shift); in byte_pos()
[all …]
Ddummy.c243 static void dummy_systimer_rearm(struct dummy_systimer_pcm *dpcm) in dummy_systimer_rearm() argument
245 mod_timer(&dpcm->timer, jiffies + in dummy_systimer_rearm()
246 DIV_ROUND_UP(dpcm->frac_period_rest, dpcm->rate)); in dummy_systimer_rearm()
249 static void dummy_systimer_update(struct dummy_systimer_pcm *dpcm) in dummy_systimer_update() argument
253 delta = jiffies - dpcm->base_time; in dummy_systimer_update()
256 dpcm->base_time += delta; in dummy_systimer_update()
257 delta *= dpcm->rate; in dummy_systimer_update()
258 dpcm->frac_pos += delta; in dummy_systimer_update()
259 while (dpcm->frac_pos >= dpcm->frac_buffer_size) in dummy_systimer_update()
260 dpcm->frac_pos -= dpcm->frac_buffer_size; in dummy_systimer_update()
[all …]
/linux-6.15/sound/soc/
Dsoc-pcm.c25 #include <sound/soc-dpcm.h>
41 if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE)
51 if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || in snd_soc_dpcm_can_be_update()
52 ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && in snd_soc_dpcm_can_be_update()
53 be->dpcm[stream].runtime_update)) in snd_soc_dpcm_can_be_update()
64 struct snd_soc_dpcm *dpcm; in snd_soc_dpcm_check_state() local
69 for_each_dpcm_fe(be, stream, dpcm) { in snd_soc_dpcm_check_state()
71 if (dpcm->fe == fe) in snd_soc_dpcm_check_state()
74 state = dpcm->fe->dpcm[stream].state; in snd_soc_dpcm_check_state()
179 struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; in dpcm_show_state()
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Dsoc-compress.c21 #include <sound/soc-dpcm.h>
137 struct snd_soc_dpcm *dpcm; in soc_compr_open_fe() local
153 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; in soc_compr_open_fe()
158 for_each_dpcm_be(fe, stream, dpcm) in soc_compr_open_fe()
159 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; in soc_compr_open_fe()
180 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; in soc_compr_open_fe()
181 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; in soc_compr_open_fe()
198 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; in soc_compr_open_fe()
207 struct snd_soc_dpcm *dpcm; in soc_compr_free_fe() local
215 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; in soc_compr_free_fe()
[all …]
/linux-6.15/sound/pci/asihpi/
Dasihpi.c427 struct snd_card_asihpi_pcm *dpcm = runtime->private_data; in snd_card_asihpi_pcm_hw_params() local
439 hpi_handle_error(hpi_format_create(&dpcm->format, in snd_card_asihpi_pcm_hw_params()
444 if (hpi_instream_reset(dpcm->h_stream) != 0) in snd_card_asihpi_pcm_hw_params()
448 dpcm->h_stream, &dpcm->format) != 0) in snd_card_asihpi_pcm_hw_params()
452 dpcm->hpi_buffer_attached = 0; in snd_card_asihpi_pcm_hw_params()
454 err = hpi_stream_host_buffer_attach(dpcm->h_stream, in snd_card_asihpi_pcm_hw_params()
467 hpi_stream_get_info_ex(dpcm->h_stream, NULL, in snd_card_asihpi_pcm_hw_params()
468 &dpcm->hpi_buffer_attached, NULL, NULL, NULL); in snd_card_asihpi_pcm_hw_params()
477 dpcm->bytes_per_sec = bytes_per_sec; in snd_card_asihpi_pcm_hw_params()
478 dpcm->buffer_bytes = params_buffer_bytes(params); in snd_card_asihpi_pcm_hw_params()
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/linux-6.15/sound/soc/generic/
Daudio-graph-card2-custom-sample2.dtsi55 /* for [DPCM] */
61 /* for [DPCM-Multi] */
85 * [DPCM]
98 * [DPCM-Multi]
141 * [DPCM-Multi]::BE
201 dpcm {
212 * [DPCM]::FE
224 * [DPCM-Multi]::FE
243 * [DPCM]::BE
254 * [DPCM-Multi]::BE
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DKconfig10 It also support DPCM of multi CPU single Codec ststem.
19 It also support DPCM of multi CPU single Codec ststem.
Daudio-graph-card2.c129 DPCM
154 dpcm {
234 #define GRAPH_NODENAME_DPCM "dpcm"
319 str = "DPCM Front-End"; in graph_get_type()
321 str = "DPCM Back-End"; in graph_get_type()
479 * if DPCM-BE case in __graph_parse_node()
606 * DPCM is out of scope in graph_parse_node_multi()
889 * dpcm { in audio_graph2_link_dpcm()
923 * dpcm { in audio_graph2_link_dpcm()
956 graph_parse_convert(ep, dai_props); /* at node of <dpcm> */ in audio_graph2_link_dpcm()
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/linux-6.15/include/sound/
Dsoc-dpcm.h3 * linux/sound/soc-dpcm.h -- ALSA SoC Dynamic PCM Support
76 /* list of BE and FE for this DPCM link */
107 list_for_each_entry(_dpcm, &(be)->dpcm[stream].fe_clients, list_fe)
110 list_for_each_entry(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)
112 list_for_each_entry_safe(_dpcm, __dpcm, &(fe)->dpcm[stream].be_clients, list_be)
114 list_for_each_entry_continue_reverse(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)
/linux-6.15/Documentation/sound/soc/
Ddpcm.rst13 The DPCM runtime routing is determined by the ALSA mixer settings in the same
14 way as the analog signal is routed in an ASoC codec driver. DPCM uses a DAPM
18 DPCM re-uses all the existing component codec, platform and DAI drivers without
53 Example - DPCM Switching playback from DAI0 to DAI1
99 3. DPCM runs the PCM trigger(stop), hw_free(), shutdown() operations on DAI0
104 5. DPCM runs the PCM ops for startup(), hw_params(), prepare() and
108 and then DPCM will take care of managing the DAI PCM operations to either bring
113 DPCM machine driver
116 The DPCM enabled ASoC machine driver is similar to normal machine drivers
167 set the DAI link to a DPCM FE with the ``dynamic = 1``.
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/linux-6.15/Documentation/devicetree/bindings/sound/
Dfsl,imx-asrc.yaml12 different output clock. The driver currently works as a Front End of DPCM
86 description: The mutual sample rate used by DPCM Back Ends
90 description: The mutual sample width used by DPCM Back Ends
111 Defines a mutual sample format used by DPCM Back Ends, which can
Daudio-graph-card2.yaml34 dpcm:
36 description: DPCM node
Dqcom,q6usb.yaml7 title: Qualcomm ASoC DPCM USB backend DAI
13 The USB port is a supported AFE path on the Q6 DSP. This ASoC DPCM
Dfsl,easrc.yaml62 description: Defines a mutual sample rate used by DPCM Back Ends
69 Defines a mutual sample format used by DPCM Back Ends
/linux-6.15/sound/soc/mediatek/common/
Dmtk-dsp-sof-common.c78 struct snd_soc_dpcm *dpcm; in mtk_sof_find_tplg_be() local
83 for_each_dpcm_fe(rtd, stream, dpcm) { in mtk_sof_find_tplg_be()
84 fe = dpcm->fe; in mtk_sof_find_tplg_be()
92 for_each_dpcm_be(fe, stream, dpcm) { in mtk_sof_find_tplg_be()
93 be = dpcm->be; in mtk_sof_find_tplg_be()
/linux-6.15/drivers/media/platform/ti/omap3isp/
Dispcsi2.c104 /* No DPCM decompression */
106 /* DPCM decompression */
111 /* No DPCM decompression */
114 /* DPCM decompression */
122 /* No DPCM decompression */
124 /* DPCM decompression */
130 /* No DPCM decompression */
133 /* DPCM decompression */
142 /* No DPCM decompression */
145 /* DPCM decompression */
[all …]
/linux-6.15/drivers/media/platform/qcom/camss/
Dcamss-csid-gen1.h24 #define PLAIN_FORMAT_PLAIN8 0x0 /* supports DPCM, UNCOMPRESSED_6/8_BIT */
25 #define PLAIN_FORMAT_PLAIN16 0x1 /* supports DPCM, UNCOMPRESSED_10/16_BIT */
Dcamss-csid-780.h21 #define PLAIN_FORMAT_PLAIN8 0x0 /* supports DPCM, UNCOMPRESSED_6/8_BIT */
22 #define PLAIN_FORMAT_PLAIN16 0x1 /* supports DPCM, UNCOMPRESSED_10/16_BIT */
Dcamss-csid-gen2.h35 #define PLAIN_FORMAT_PLAIN8 0x0 /* supports DPCM, UNCOMPRESSED_6/8_BIT */
36 #define PLAIN_FORMAT_PLAIN16 0x1 /* supports DPCM, UNCOMPRESSED_10/16_BIT */
/linux-6.15/sound/soc/sof/
Dipc3-pcm.c220 struct snd_soc_dpcm *dpcm; in sof_ipc3_pcm_dai_link_fixup() local
282 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { in sof_ipc3_pcm_dai_link_fixup()
283 struct snd_soc_pcm_runtime *fe = dpcm->fe; in sof_ipc3_pcm_dai_link_fixup()
401 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { in sof_ipc3_pcm_dai_link_fixup()
402 struct snd_soc_pcm_runtime *fe = dpcm->fe; in sof_ipc3_pcm_dai_link_fixup()
408 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_CAPTURE, dpcm) { in sof_ipc3_pcm_dai_link_fixup()
409 struct snd_soc_pcm_runtime *fe = dpcm->fe; in sof_ipc3_pcm_dai_link_fixup()
/linux-6.15/drivers/slimbus/
Dstream.c99 * From ASoC DPCM framework, this state is linked to startup() operation.
201 * return zero on success and error code on failure. From ASoC DPCM framework,
356 * Return: zero on success and error code on failure. From ASoC DPCM framework,
409 * Return: zero on success and error code on failure. From ASoC DPCM framework,
446 * Return: zero on success and error code on failure. From ASoC DPCM framework,
476 * Return: zero on success and error code on failure. From ASoC DPCM framework,
/linux-6.15/Documentation/userspace-api/media/v4l/
Dpixfmt-srggb10dpcm8.rst25 colour compressed to 8 bits each, using DPCM compression. DPCM,
/linux-6.15/sound/soc/intel/avs/
Dpcm.c208 struct snd_soc_dpcm *dpcm; in avs_dai_be_hw_params() local
212 for_each_dpcm_fe(be, substream->stream, dpcm) { in avs_dai_be_hw_params()
213 fe = dpcm->fe; in avs_dai_be_hw_params()
214 fe_hw_params = &fe->dpcm[substream->stream].hw_params; in avs_dai_be_hw_params()
611 struct snd_soc_dpcm *dpcm; in avs_dai_fe_hw_params() local
628 for_each_dpcm_be(fe, substream->stream, dpcm) { in avs_dai_fe_hw_params()
629 be = dpcm->be; in avs_dai_fe_hw_params()
630 be_hw_params = &be->dpcm[substream->stream].hw_params; in avs_dai_fe_hw_params()
1041 ret = dai->driver->ops->hw_params(substream, &rtd->dpcm[substream->stream].hw_params, dai); in avs_dai_resume_hw_params()
1644 struct snd_soc_dpcm *dpcm; in avs_component_hda_open() local
[all …]
/linux-6.15/sound/soc/fsl/
Dfsl_asrc_dma.c149 struct snd_soc_dpcm *dpcm; in fsl_asrc_dma_hw_params() local
155 /* Fetch the Back-End dma_data from DPCM */ in fsl_asrc_dma_hw_params()
156 for_each_dpcm_be(rtd, stream, dpcm) { in fsl_asrc_dma_hw_params()
157 struct snd_soc_pcm_runtime *be = dpcm->be; in fsl_asrc_dma_hw_params()
163 if (dpcm->fe != rtd) in fsl_asrc_dma_hw_params()
/linux-6.15/Documentation/driver-api/soundwire/
Dstream.rst197 framework(ASoC DPCM) guarantees that stream operations on a card are
289 per stream. From ASoC DPCM framework, this stream state maybe linked to
320 only be invoked once by respective Master(s) and Slave(s). From ASoC DPCM
369 once per stream. From ASoC DPCM framework, this stream state is linked
401 stream. From ASoC DPCM framework, this stream state is linked to
429 per stream. From ASoC DPCM framework, this stream state is linked to
496 all the Master(s) and Slave(s) associated with stream. From ASoC DPCM
507 The .shutdown() ASoC DPCM operation calls below Bus API to release

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