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path: root/sound/soc/sti/uniperif.h
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2017-04-06ASoC: STI: Fix null ptr deference in IRQ handlerArnaud Pouliquen
With RTlinux a race condition has been found that leads to NULL ptr crash: - On CPU 0: uni_player_irq_handler is called to treat XRUN "(player->state == UNIPERIF_STATE_STOPPED)" is FALSE so status is checked, dev_err(player->dev, "FIFO underflow error detected") is printed and then snd_pcm_stream_lock should be called to lock stream for stopping. - On CPU 1: application stop and close the stream. Issue is that the stop and shutdown functions are executed while "FIFO underflow error detected" is printed. So when CPU 0 calls snd_pcm_stream_lock, player->substream is already null. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-26ASoC: sti: reset refactoringArnaud Pouliquen
Reset is common to player and reader, migrate function in sti_uniperif.c Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-09-14ASoC: sti: suppress inappropriate DT fieldsArnaud Pouliquen
Update to suppress some DT nodes that can be handled in driver using compatible string. "dai-name", "st,version"and "st,mode" are suppressed "st,tdm-mode" is added to handle TDM mode. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-18ASoC: sti: select player for I2S/TDM TX busMoise Gergaud
By default, player#0 is connected to I2S/TDM TX bus. This patch connects player#1 to I2S/TDM TX bus. Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: unip player tdm modeMoise Gergaud
here are the changes to enable player tdm mode: - When TDM_ENABLE is set to 1, the i2s format should be automatically configured. Unfortunately this is not the case (HW bug). Then, we shall force DATA_SIZE setting. - Compute the transfer size for tdm mode: transfer size = user frame size - Manage tdm slots configuration given in DT. - Don't use mclk-fs when unip in tdm mode; use tdm slot config to compute frame size and to set mclk rate. - Refine the hw param (channels & format) according to tdm slot config. Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: helper functions to fix tdm runtime paramsMoise Gergaud
Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: helper functions for unip tdm slots configurationMoise Gergaud
- sti_uniperiph_set_tdm_slot: store tdm slot config in unip context - sti_uniperiph_get_tdm_word_pos: configure unip tdm slots pos regs Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: define tdm type & default tdm hw configMoise Gergaud
Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: rename unip player type into common player & reader typeMoise Gergaud
Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-12ASoC: sti: macro for uniperif tdm regs accessMoise Gergaud
Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-03-31ASoC: sti: correct typo errorsMoise Gergaud
Signed-off-by: Moise Gergaud <moise.gergaud@st.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-29ASoC: uniperf: Add missing __iomem annotationLars-Peter Clausen
base referes to a iomem region, so it should have the __iomem annotation. Fixes the following warnings from sparse: sound/soc/sti/sti_uniperif.c:169:19: warning: incorrect type in assignment (different address spaces) sound/soc/sti/sti_uniperif.c:169:19: expected void *base sound/soc/sti/sti_uniperif.c:169:19: got void [noderef] <asn:2>* sound/soc/sti/uniperif_player.c:104:18: warning: incorrect type in argument 1 (different address spaces) sound/soc/sti/uniperif_player.c:104:18: expected void const volatile [noderef] <asn:2>*addr sound/soc/sti/uniperif_player.c:104:18: got void * [...] Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-16ASoC: sti: Add clock adjustement controlArnaud Pouliquen
Add capability to adjust player clock, for clocks drift management. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-16ASoC: sti: Add uniperipheral dai driverArnaud Pouliquen
ASoc uniperipheral dai driver that manages uniperipheral DAIs and registers associated generic dma engine platform. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-16ASoC: sti: Add CPU DAI driver for captureArnaud Pouliquen
Add code to manage Uniperipheral reader IP instances. These DAIs are dedicated to capture and support I2S and IEC modes. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-10ASoC: sti: Add CPU DAI driver for playbackArnaud Pouliquen
Add code to manage Uniperipheral player IP instances. These DAIs are dedicated to playback and support I2S and IEC modes. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-10ASoC: sti: Add uniperipheral header fileArnaud Pouliquen
Add the Uniperipheral header file for uniperipheral IPs registers definition. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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