From: Jerome Brunet <jbrunet@baylibre.com> To: Mark Brown <broonie@kernel.org>, Kevin Hilman <khilman@baylibre.com>, Carlo Caione <carlo@caione.org> Cc: Jerome Brunet <jbrunet@baylibre.com>, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org Subject: [PATCH 1/4] ASoC: meson: axg-toddr: add support for spdifin backend Date: Tue, 11 Dec 2018 14:47:10 +0100 [thread overview] Message-ID: <20181211134713.4908-2-jbrunet@baylibre.com> (raw) In-Reply-To: <20181211134713.4908-1-jbrunet@baylibre.com> add IEC958_SUBFRAME_LE to the list of format accepted by the fifo frontend. As opposed to what was initially noted in the toddr dai driver, the spdifin does not place the msb at bit 28, it just output a whole spdif subframe. Placing the msb at bit 28 in the toddr driver just filters out the parity, user, channel status and validity bits. It is better to just provide the whole spdif subframe to the userspace and let the iec958 plugin deal with it. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> --- sound/soc/meson/axg-fifo.h | 3 ++- sound/soc/meson/axg-toddr.c | 15 +++++---------- 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/sound/soc/meson/axg-fifo.h b/sound/soc/meson/axg-fifo.h index cb6c4013ca33..d9f516cfbeda 100644 --- a/sound/soc/meson/axg-fifo.h +++ b/sound/soc/meson/axg-fifo.h @@ -25,7 +25,8 @@ struct snd_soc_pcm_runtime; SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ - SNDRV_PCM_FMTBIT_S32_LE) + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) #define AXG_FIFO_BURST 8 #define AXG_FIFO_MIN_CNT 64 diff --git a/sound/soc/meson/axg-toddr.c b/sound/soc/meson/axg-toddr.c index c2c9bb312586..0e9ca3882ae5 100644 --- a/sound/soc/meson/axg-toddr.c +++ b/sound/soc/meson/axg-toddr.c @@ -25,6 +25,8 @@ #define CTRL0_TODDR_LSB_POS_MASK GENMASK(7, 3) #define CTRL0_TODDR_LSB_POS(x) ((x) << 3) +#define TODDR_MSB_POS 31 + static int axg_toddr_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) { @@ -36,14 +38,7 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai); - unsigned int type, width, msb = 31; - - /* - * NOTE: - * Almost all backend will place the MSB at bit 31, except SPDIF Input - * which will put it at index 28. When adding support for the SPDIF - * Input, we'll need to find which type of backend we are connected to. - */ + unsigned int type, width; switch (params_physical_width(params)) { case 8: @@ -66,8 +61,8 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, CTRL0_TODDR_MSB_POS_MASK | CTRL0_TODDR_LSB_POS_MASK, CTRL0_TODDR_TYPE(type) | - CTRL0_TODDR_MSB_POS(msb) | - CTRL0_TODDR_LSB_POS(msb - (width - 1))); + CTRL0_TODDR_MSB_POS(TODDR_MSB_POS) | + CTRL0_TODDR_LSB_POS(TODDR_MSB_POS - (width - 1))); return 0; } -- 2.19.2
WARNING: multiple messages have this Message-ID (diff)
From: Jerome Brunet <jbrunet@baylibre.com> To: Mark Brown <broonie@kernel.org>, Kevin Hilman <khilman@baylibre.com>, Carlo Caione <carlo@caione.org> Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Jerome Brunet <jbrunet@baylibre.com> Subject: [PATCH 1/4] ASoC: meson: axg-toddr: add support for spdifin backend Date: Tue, 11 Dec 2018 14:47:10 +0100 [thread overview] Message-ID: <20181211134713.4908-2-jbrunet@baylibre.com> (raw) In-Reply-To: <20181211134713.4908-1-jbrunet@baylibre.com> add IEC958_SUBFRAME_LE to the list of format accepted by the fifo frontend. As opposed to what was initially noted in the toddr dai driver, the spdifin does not place the msb at bit 28, it just output a whole spdif subframe. Placing the msb at bit 28 in the toddr driver just filters out the parity, user, channel status and validity bits. It is better to just provide the whole spdif subframe to the userspace and let the iec958 plugin deal with it. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> --- sound/soc/meson/axg-fifo.h | 3 ++- sound/soc/meson/axg-toddr.c | 15 +++++---------- 2 files changed, 7 insertions(+), 11 deletions(-) diff --git a/sound/soc/meson/axg-fifo.h b/sound/soc/meson/axg-fifo.h index cb6c4013ca33..d9f516cfbeda 100644 --- a/sound/soc/meson/axg-fifo.h +++ b/sound/soc/meson/axg-fifo.h @@ -25,7 +25,8 @@ struct snd_soc_pcm_runtime; SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ - SNDRV_PCM_FMTBIT_S32_LE) + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) #define AXG_FIFO_BURST 8 #define AXG_FIFO_MIN_CNT 64 diff --git a/sound/soc/meson/axg-toddr.c b/sound/soc/meson/axg-toddr.c index c2c9bb312586..0e9ca3882ae5 100644 --- a/sound/soc/meson/axg-toddr.c +++ b/sound/soc/meson/axg-toddr.c @@ -25,6 +25,8 @@ #define CTRL0_TODDR_LSB_POS_MASK GENMASK(7, 3) #define CTRL0_TODDR_LSB_POS(x) ((x) << 3) +#define TODDR_MSB_POS 31 + static int axg_toddr_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) { @@ -36,14 +38,7 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct axg_fifo *fifo = snd_soc_dai_get_drvdata(dai); - unsigned int type, width, msb = 31; - - /* - * NOTE: - * Almost all backend will place the MSB at bit 31, except SPDIF Input - * which will put it at index 28. When adding support for the SPDIF - * Input, we'll need to find which type of backend we are connected to. - */ + unsigned int type, width; switch (params_physical_width(params)) { case 8: @@ -66,8 +61,8 @@ static int axg_toddr_dai_hw_params(struct snd_pcm_substream *substream, CTRL0_TODDR_MSB_POS_MASK | CTRL0_TODDR_LSB_POS_MASK, CTRL0_TODDR_TYPE(type) | - CTRL0_TODDR_MSB_POS(msb) | - CTRL0_TODDR_LSB_POS(msb - (width - 1))); + CTRL0_TODDR_MSB_POS(TODDR_MSB_POS) | + CTRL0_TODDR_LSB_POS(TODDR_MSB_POS - (width - 1))); return 0; } -- 2.19.2 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic
next prev parent reply other threads:[~2018-12-11 13:47 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-11 13:47 [PATCH 0/4] ASoC: meson: add axg spdif input support Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet [this message] 2018-12-11 13:47 ` [PATCH 1/4] ASoC: meson: axg-toddr: add support for spdifin backend Jerome Brunet 2018-12-13 12:08 ` Applied "ASoC: meson: axg-toddr: add support for spdifin backend" to the asoc tree Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-11 13:47 ` [PATCH 2/4] ASoC: meson: add axg spdif input DT binding documentation Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet 2018-12-13 12:08 ` Applied "ASoC: meson: add axg spdif input DT binding documentation" to the asoc tree Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-11 13:47 ` [PATCH 3/4] ASoC: meson: add axg spdif input Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet 2018-12-13 12:08 ` Applied "ASoC: meson: add axg spdif input" to the asoc tree Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-11 13:47 ` [PATCH 4/4] MAINTAINERS: Add Amlogic sound drivers entry Jerome Brunet 2018-12-11 13:47 ` Jerome Brunet 2018-12-13 12:08 ` Applied "MAINTAINERS: Add Amlogic sound drivers entry" to the asoc tree Mark Brown 2018-12-13 12:08 ` Mark Brown 2018-12-13 12:08 ` Mark Brown
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20181211134713.4908-2-jbrunet@baylibre.com \ --to=jbrunet@baylibre.com \ --cc=alsa-devel@alsa-project.org \ --cc=broonie@kernel.org \ --cc=carlo@caione.org \ --cc=devicetree@vger.kernel.org \ --cc=khilman@baylibre.com \ --cc=linux-amlogic@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.