Home
last modified time | relevance | path

Searched full:dpcm (Results 1 – 25 of 60) sorted by relevance

123

/Linux-v5.15/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,
165 static inline unsigned int byte_pos(struct loopback_pcm *dpcm, unsigned int x) in byte_pos() argument
167 if (dpcm->pcm_rate_shift == NO_PITCH) { in byte_pos()
171 HZ * (unsigned long long)dpcm->pcm_rate_shift); in byte_pos()
[all …]
Ddummy.c235 static void dummy_systimer_rearm(struct dummy_systimer_pcm *dpcm) in dummy_systimer_rearm() argument
237 mod_timer(&dpcm->timer, jiffies + in dummy_systimer_rearm()
238 DIV_ROUND_UP(dpcm->frac_period_rest, dpcm->rate)); in dummy_systimer_rearm()
241 static void dummy_systimer_update(struct dummy_systimer_pcm *dpcm) in dummy_systimer_update() argument
245 delta = jiffies - dpcm->base_time; in dummy_systimer_update()
248 dpcm->base_time += delta; in dummy_systimer_update()
249 delta *= dpcm->rate; in dummy_systimer_update()
250 dpcm->frac_pos += delta; in dummy_systimer_update()
251 while (dpcm->frac_pos >= dpcm->frac_buffer_size) in dummy_systimer_update()
252 dpcm->frac_pos -= dpcm->frac_buffer_size; in dummy_systimer_update()
[all …]
/Linux-v5.15/sound/soc/
Dsoc-pcm.c26 #include <sound/soc-dpcm.h>
73 struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; in dpcm_show_state()
74 struct snd_soc_dpcm *dpcm; in dpcm_show_state() local
84 dpcm_state_string(fe->dpcm[stream].state)); in dpcm_show_state()
86 if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && in dpcm_show_state()
87 (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) in dpcm_show_state()
98 if (list_empty(&fe->dpcm[stream].be_clients)) { in dpcm_show_state()
105 for_each_dpcm_be(fe, stream, dpcm) { in dpcm_show_state()
106 struct snd_soc_pcm_runtime *be = dpcm->be; in dpcm_show_state()
107 params = &dpcm->hw_params; in dpcm_show_state()
[all …]
Dsoc-compress.c21 #include <sound/soc-dpcm.h>
107 struct snd_soc_dpcm *dpcm; in soc_compr_open_fe() local
113 fe->dpcm[stream].runtime = fe_substream->runtime; in soc_compr_open_fe()
121 fe->dpcm[stream].runtime = fe_substream->runtime; in soc_compr_open_fe()
123 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; in soc_compr_open_fe()
128 for_each_dpcm_be(fe, stream, dpcm) in soc_compr_open_fe()
129 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; in soc_compr_open_fe()
132 fe->dpcm[stream].runtime = NULL; in soc_compr_open_fe()
151 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; in soc_compr_open_fe()
152 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; in soc_compr_open_fe()
[all …]
/Linux-v5.15/sound/pci/asihpi/
Dasihpi.c434 struct snd_card_asihpi_pcm *dpcm = runtime->private_data; in snd_card_asihpi_pcm_hw_params() local
446 hpi_handle_error(hpi_format_create(&dpcm->format, in snd_card_asihpi_pcm_hw_params()
451 if (hpi_instream_reset(dpcm->h_stream) != 0) in snd_card_asihpi_pcm_hw_params()
455 dpcm->h_stream, &dpcm->format) != 0) in snd_card_asihpi_pcm_hw_params()
459 dpcm->hpi_buffer_attached = 0; in snd_card_asihpi_pcm_hw_params()
461 err = hpi_stream_host_buffer_attach(dpcm->h_stream, in snd_card_asihpi_pcm_hw_params()
474 err = hpi_stream_get_info_ex(dpcm->h_stream, NULL, in snd_card_asihpi_pcm_hw_params()
475 &dpcm->hpi_buffer_attached, NULL, NULL, NULL); in snd_card_asihpi_pcm_hw_params()
484 dpcm->bytes_per_sec = bytes_per_sec; in snd_card_asihpi_pcm_hw_params()
485 dpcm->buffer_bytes = params_buffer_bytes(params); in snd_card_asihpi_pcm_hw_params()
[all …]
/Linux-v5.15/include/sound/
Dsoc-dpcm.h3 * linux/sound/soc-dpcm.h -- ALSA SoC Dynamic PCM Support
77 /* 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-v5.15/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
166 set the DAI link to a DPCM FE with the ``dynamic = 1``. The supported FE stream
[all …]
Dindex.rst19 dpcm
/Linux-v5.15/Documentation/devicetree/bindings/sound/
Dfsl,asrc.txt5 output clock. The driver currently works as a Front End of DPCM with other Back
39 - fsl,asrc-rate : Defines a mutual sample rate used by DPCM Back Ends.
41 - fsl,asrc-width : Defines a mutual sample width used by DPCM Back Ends.
54 - fsl,asrc-format : Defines a mutual sample format used by DPCM Back
Dfsl,easrc.yaml56 description: Defines a mutual sample rate used by DPCM Back Ends
63 Defines a mutual sample format used by DPCM Back Ends
Dsimple-card.yaml411 # Multi DAI links with DPCM:
414 # CPU1 ------ PCM3168A-p /* DPCM 1ch/2ch */
415 # CPU2 --/ /* DPCM 3ch/4ch */
416 # CPU3 --/ /* DPCM 5ch/6ch */
417 # CPU4 --/ /* DPCM 7ch/8ch */
/Linux-v5.15/drivers/staging/media/omap4iss/
Diss_csi2.c122 /* No DPCM decompression */
124 /* DPCM decompression */
129 /* No DPCM decompression */
131 /* DPCM decompression */
139 /* No DPCM decompression */
141 /* DPCM decompression */
146 /* No DPCM decompression */
148 /* DPCM decompression */
156 /* No DPCM decompression */
158 /* DPCM decompression */
[all …]
/Linux-v5.15/sound/soc/generic/
DKconfig10 It also support DPCM of multi CPU single Codec ststem.
19 It also support DPCM of multi CPU single Codec ststem.
Daudio-graph-card.c283 dev_dbg(dev, "link_of DPCM (%pOF)\n", ep); in graph_dai_link_of_dpcm()
411 * It is DPCM in parse_as_dpcm_link()
464 /* check if link requires DPCM parsing */ in __graph_for_each_link()
512 * In DPCM sound case, in graph_for_each_link()
647 dev_dbg(dev, "Count As DPCM\n"); in graph_count_dpcm()
/Linux-v5.15/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-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-v5.15/drivers/media/platform/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-v5.15/drivers/slimbus/
Dstream.c97 * From ASoC DPCM framework, this state is linked to startup() operation.
199 * return zero on success and error code on failure. From ASoC DPCM framework,
347 * Return: zero on success and error code on failure. From ASoC DPCM framework,
400 * Return: zero on success and error code on failure. From ASoC DPCM framework,
434 * Return: zero on success and error code on failure. From ASoC DPCM framework,
461 * Return: zero on success and error code on failure. From ASoC DPCM framework,
/Linux-v5.15/sound/soc/qcom/
Dcommon.c126 /* DPCM backend */ in qcom_snd_parse_of()
131 /* DPCM frontend */ in qcom_snd_parse_of()
147 /* DPCM */ in qcom_snd_parse_of()
/Linux-v5.15/Documentation/userspace-api/media/v4l/
Dpixfmt-srggb10dpcm8.rst25 colour compressed to 8 bits each, using DPCM compression. DPCM,
Dfourcc.rst19 - b: raw bayer, DPCM compressed
/Linux-v5.15/sound/soc/fsl/
Dfsl_asrc_dma.c147 struct snd_soc_dpcm *dpcm; in fsl_asrc_dma_hw_params() local
153 /* Fetch the Back-End dma_data from DPCM */ in fsl_asrc_dma_hw_params()
154 for_each_dpcm_be(rtd, stream, dpcm) { in fsl_asrc_dma_hw_params()
155 struct snd_soc_pcm_runtime *be = dpcm->be; in fsl_asrc_dma_hw_params()
159 if (dpcm->fe != rtd) in fsl_asrc_dma_hw_params()
/Linux-v5.15/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
/Linux-v5.15/sound/soc/sof/intel/
Dhda-dai.c43 struct snd_soc_dpcm *dpcm; in hda_check_fes() local
45 for_each_dpcm_fe(rtd, dir, dpcm) { in hda_check_fes()
46 fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, dir); in hda_check_fes()
275 return hda_link_hw_params(substream, &rtd->dpcm[stream].hw_params, in hda_link_pcm_prepare()
/Linux-v5.15/sound/soc/intel/boards/
Dkbl_rt5663_rt5514_max98927.c339 struct snd_soc_dpcm *dpcm, *rtd_dpcm = NULL; in kabylake_ssp_fixup() local
345 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { in kabylake_ssp_fixup()
346 rtd_dpcm = dpcm; in kabylake_ssp_fixup()
354 for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_CAPTURE, dpcm) { in kabylake_ssp_fixup()
355 rtd_dpcm = dpcm; in kabylake_ssp_fixup()

123