694 строки
17 KiB
C
694 строки
17 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// soc-dai.c
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//
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// Copyright (C) 2019 Renesas Electronics Corp.
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// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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//
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include <sound/soc-link.h>
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#define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
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static inline int _soc_dai_ret(struct snd_soc_dai *dai,
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const char *func, int ret)
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{
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/* Positive, Zero values are not errors */
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if (ret >= 0)
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return ret;
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/* Negative values might be errors */
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switch (ret) {
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case -EPROBE_DEFER:
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case -ENOTSUPP:
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break;
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default:
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dev_err(dai->dev,
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"ASoC: error at %s on %s: %d\n",
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func, dai->name, ret);
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}
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return ret;
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}
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/**
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* snd_soc_dai_set_sysclk - configure DAI system or master clock.
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* @dai: DAI
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* @clk_id: DAI specific clock ID
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* @freq: new clock frequency in Hz
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* @dir: new clock direction - input/output.
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*
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* Configures the DAI master (MCLK) or system (SYSCLK) clocking.
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*/
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int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
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unsigned int freq, int dir)
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{
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int ret;
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if (dai->driver->ops &&
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dai->driver->ops->set_sysclk)
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ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
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else
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ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
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freq, dir);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
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/**
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* snd_soc_dai_set_clkdiv - configure DAI clock dividers.
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* @dai: DAI
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* @div_id: DAI specific clock divider ID
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* @div: new clock divisor.
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*
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* Configures the clock dividers. This is used to derive the best DAI bit and
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* frame clocks from the system or master clock. It's best to set the DAI bit
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* and frame clocks as low as possible to save system power.
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*/
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int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
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int div_id, int div)
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{
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int ret = -EINVAL;
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if (dai->driver->ops &&
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dai->driver->ops->set_clkdiv)
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ret = dai->driver->ops->set_clkdiv(dai, div_id, div);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
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/**
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* snd_soc_dai_set_pll - configure DAI PLL.
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* @dai: DAI
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* @pll_id: DAI specific PLL ID
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* @source: DAI specific source for the PLL
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* @freq_in: PLL input clock frequency in Hz
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* @freq_out: requested PLL output clock frequency in Hz
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*
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* Configures and enables PLL to generate output clock based on input clock.
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*/
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int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
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unsigned int freq_in, unsigned int freq_out)
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{
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int ret;
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if (dai->driver->ops &&
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dai->driver->ops->set_pll)
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ret = dai->driver->ops->set_pll(dai, pll_id, source,
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freq_in, freq_out);
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else
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ret = snd_soc_component_set_pll(dai->component, pll_id, source,
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freq_in, freq_out);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
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/**
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* snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
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* @dai: DAI
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* @ratio: Ratio of BCLK to Sample rate.
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*
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* Configures the DAI for a preset BCLK to sample rate ratio.
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*/
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int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
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{
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int ret = -EINVAL;
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if (dai->driver->ops &&
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dai->driver->ops->set_bclk_ratio)
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ret = dai->driver->ops->set_bclk_ratio(dai, ratio);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
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/**
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* snd_soc_dai_set_fmt - configure DAI hardware audio format.
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* @dai: DAI
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* @fmt: SND_SOC_DAIFMT_* format value.
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*
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* Configures the DAI hardware format and clocking.
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*/
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int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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int ret = -ENOTSUPP;
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if (dai->driver->ops &&
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dai->driver->ops->set_fmt)
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ret = dai->driver->ops->set_fmt(dai, fmt);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
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/**
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* snd_soc_xlate_tdm_slot - generate tx/rx slot mask.
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* @slots: Number of slots in use.
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* @tx_mask: bitmask representing active TX slots.
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* @rx_mask: bitmask representing active RX slots.
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*
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* Generates the TDM tx and rx slot default masks for DAI.
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*/
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static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
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unsigned int *tx_mask,
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unsigned int *rx_mask)
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{
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if (*tx_mask || *rx_mask)
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return 0;
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if (!slots)
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return -EINVAL;
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*tx_mask = (1 << slots) - 1;
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*rx_mask = (1 << slots) - 1;
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return 0;
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}
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/**
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* snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
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* @dai: The DAI to configure
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* @tx_mask: bitmask representing active TX slots.
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* @rx_mask: bitmask representing active RX slots.
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* @slots: Number of slots in use.
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* @slot_width: Width in bits for each slot.
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*
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* This function configures the specified DAI for TDM operation. @slot contains
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* the total number of slots of the TDM stream and @slot_with the width of each
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* slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
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* active slots of the TDM stream for the specified DAI, i.e. which slots the
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* DAI should write to or read from. If a bit is set the corresponding slot is
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* active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
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* the first slot, bit 1 to the second slot and so on. The first active slot
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* maps to the first channel of the DAI, the second active slot to the second
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* channel and so on.
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*
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* TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
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* @rx_mask and @slot_width will be ignored.
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*
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* Returns 0 on success, a negative error code otherwise.
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*/
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int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
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unsigned int tx_mask, unsigned int rx_mask,
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int slots, int slot_width)
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{
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int ret = -ENOTSUPP;
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if (dai->driver->ops &&
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dai->driver->ops->xlate_tdm_slot_mask)
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dai->driver->ops->xlate_tdm_slot_mask(slots,
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&tx_mask, &rx_mask);
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else
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snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
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dai->tx_mask = tx_mask;
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dai->rx_mask = rx_mask;
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if (dai->driver->ops &&
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dai->driver->ops->set_tdm_slot)
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ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
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slots, slot_width);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
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/**
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* snd_soc_dai_set_channel_map - configure DAI audio channel map
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* @dai: DAI
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* @tx_num: how many TX channels
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* @tx_slot: pointer to an array which imply the TX slot number channel
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* 0~num-1 uses
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* @rx_num: how many RX channels
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* @rx_slot: pointer to an array which imply the RX slot number channel
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* 0~num-1 uses
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*
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* configure the relationship between channel number and TDM slot number.
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*/
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int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
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unsigned int tx_num, unsigned int *tx_slot,
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unsigned int rx_num, unsigned int *rx_slot)
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{
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int ret = -ENOTSUPP;
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if (dai->driver->ops &&
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dai->driver->ops->set_channel_map)
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ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
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rx_num, rx_slot);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
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/**
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* snd_soc_dai_get_channel_map - Get DAI audio channel map
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* @dai: DAI
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* @tx_num: how many TX channels
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* @tx_slot: pointer to an array which imply the TX slot number channel
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* 0~num-1 uses
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* @rx_num: how many RX channels
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* @rx_slot: pointer to an array which imply the RX slot number channel
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* 0~num-1 uses
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*/
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int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
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unsigned int *tx_num, unsigned int *tx_slot,
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unsigned int *rx_num, unsigned int *rx_slot)
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{
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int ret = -ENOTSUPP;
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if (dai->driver->ops &&
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dai->driver->ops->get_channel_map)
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ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
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rx_num, rx_slot);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
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/**
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* snd_soc_dai_set_tristate - configure DAI system or master clock.
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* @dai: DAI
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* @tristate: tristate enable
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*
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* Tristates the DAI so that others can use it.
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*/
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int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
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{
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int ret = -EINVAL;
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if (dai->driver->ops &&
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dai->driver->ops->set_tristate)
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ret = dai->driver->ops->set_tristate(dai, tristate);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
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/**
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* snd_soc_dai_digital_mute - configure DAI system or master clock.
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* @dai: DAI
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* @mute: mute enable
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* @direction: stream to mute
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*
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* Mutes the DAI DAC.
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*/
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int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
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int direction)
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{
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int ret = -ENOTSUPP;
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/*
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* ignore if direction was CAPTURE
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* and it had .no_capture_mute flag
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*/
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if (dai->driver->ops &&
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dai->driver->ops->mute_stream &&
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(direction == SNDRV_PCM_STREAM_PLAYBACK ||
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!dai->driver->ops->no_capture_mute))
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ret = dai->driver->ops->mute_stream(dai, mute, direction);
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return soc_dai_ret(dai, ret);
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
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int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
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struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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int ret = 0;
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/* perform any topology hw_params fixups before DAI */
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ret = snd_soc_link_be_hw_params_fixup(rtd, params);
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if (ret < 0)
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goto end;
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if (dai->driver->ops &&
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dai->driver->ops->hw_params)
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ret = dai->driver->ops->hw_params(substream, params, dai);
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end:
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return soc_dai_ret(dai, ret);
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}
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void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
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struct snd_pcm_substream *substream)
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{
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if (dai->driver->ops &&
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dai->driver->ops->hw_free)
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dai->driver->ops->hw_free(substream, dai);
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}
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int snd_soc_dai_startup(struct snd_soc_dai *dai,
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struct snd_pcm_substream *substream)
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{
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int ret = 0;
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if (dai->driver->ops &&
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dai->driver->ops->startup)
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ret = dai->driver->ops->startup(substream, dai);
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return soc_dai_ret(dai, ret);
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}
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void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
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struct snd_pcm_substream *substream)
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{
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if (dai->driver->ops &&
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dai->driver->ops->shutdown)
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dai->driver->ops->shutdown(substream, dai);
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}
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snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai,
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struct snd_pcm_substream *substream)
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{
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int delay = 0;
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if (dai->driver->ops &&
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dai->driver->ops->delay)
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delay = dai->driver->ops->delay(substream, dai);
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return delay;
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}
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int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
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struct snd_soc_pcm_runtime *rtd, int num)
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{
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int ret = -ENOTSUPP;
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if (dai->driver->compress_new)
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ret = dai->driver->compress_new(rtd, num);
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return soc_dai_ret(dai, ret);
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}
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/*
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* snd_soc_dai_stream_valid() - check if a DAI supports the given stream
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*
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* Returns true if the DAI supports the indicated stream type.
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*/
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bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
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{
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struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);
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/* If the codec specifies any channels at all, it supports the stream */
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return stream->channels_min;
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}
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/*
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* snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
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*/
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void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
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{
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struct snd_soc_dai_link_component *cpu;
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struct snd_soc_dai_link_component *codec;
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struct snd_soc_dai *dai;
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bool supported[SNDRV_PCM_STREAM_LAST + 1];
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bool supported_cpu;
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bool supported_codec;
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int direction;
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int i;
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for_each_pcm_streams(direction) {
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supported_cpu = false;
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supported_codec = false;
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for_each_link_cpus(dai_link, i, cpu) {
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dai = snd_soc_find_dai_with_mutex(cpu);
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if (dai && snd_soc_dai_stream_valid(dai, direction)) {
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supported_cpu = true;
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break;
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}
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}
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for_each_link_codecs(dai_link, i, codec) {
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dai = snd_soc_find_dai_with_mutex(codec);
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if (dai && snd_soc_dai_stream_valid(dai, direction)) {
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supported_codec = true;
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break;
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}
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}
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supported[direction] = supported_cpu && supported_codec;
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}
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dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
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dai_link->dpcm_capture = supported[SNDRV_PCM_STREAM_CAPTURE];
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);
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void snd_soc_dai_action(struct snd_soc_dai *dai,
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int stream, int action)
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{
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/* see snd_soc_dai_stream_active() */
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dai->stream_active[stream] += action;
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/* see snd_soc_component_active() */
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dai->component->active += action;
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_action);
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int snd_soc_dai_active(struct snd_soc_dai *dai)
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{
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int stream, active;
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active = 0;
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for_each_pcm_streams(stream)
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active += dai->stream_active[stream];
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return active;
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}
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EXPORT_SYMBOL_GPL(snd_soc_dai_active);
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int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
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{
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struct snd_soc_dai *dai;
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int i;
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for_each_rtd_dais(rtd, i, dai) {
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if (dai->driver->probe_order != order)
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continue;
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if (dai->driver->probe) {
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int ret = dai->driver->probe(dai);
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if (ret < 0)
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return soc_dai_ret(dai, ret);
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}
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dai->probed = 1;
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}
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return 0;
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}
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int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
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{
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struct snd_soc_dai *dai;
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int i, r, ret = 0;
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for_each_rtd_dais(rtd, i, dai) {
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if (dai->driver->remove_order != order)
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continue;
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if (dai->probed &&
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dai->driver->remove) {
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r = dai->driver->remove(dai);
|
|
if (r < 0)
|
|
ret = r; /* use last error */
|
|
}
|
|
|
|
dai->probed = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_dai *dai;
|
|
int i, ret = 0;
|
|
|
|
for_each_rtd_dais(rtd, i, dai) {
|
|
if (dai->driver->pcm_new) {
|
|
ret = dai->driver->pcm_new(rtd, dai);
|
|
if (ret < 0)
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_dai *dai;
|
|
int i, ret;
|
|
|
|
for_each_rtd_dais(rtd, i, dai) {
|
|
if (dai->driver->ops &&
|
|
dai->driver->ops->prepare) {
|
|
ret = dai->driver->ops->prepare(substream, dai);
|
|
if (ret < 0)
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_dai *dai;
|
|
int i, ret;
|
|
|
|
for_each_rtd_dais(rtd, i, dai) {
|
|
if (dai->driver->ops &&
|
|
dai->driver->ops->trigger) {
|
|
ret = dai->driver->ops->trigger(substream, cmd, dai);
|
|
if (ret < 0)
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct snd_soc_dai *dai;
|
|
int i, ret;
|
|
|
|
for_each_rtd_dais(rtd, i, dai) {
|
|
if (dai->driver->ops &&
|
|
dai->driver->ops->bespoke_trigger) {
|
|
ret = dai->driver->ops->bespoke_trigger(substream,
|
|
cmd, dai);
|
|
if (ret < 0)
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->startup)
|
|
ret = dai->driver->cops->startup(cstream, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
|
|
|
|
void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream)
|
|
{
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->shutdown)
|
|
dai->driver->cops->shutdown(cstream, dai);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);
|
|
|
|
int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream, int cmd)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->trigger)
|
|
ret = dai->driver->cops->trigger(cstream, cmd, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);
|
|
|
|
int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_compr_params *params)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->set_params)
|
|
ret = dai->driver->cops->set_params(cstream, params, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);
|
|
|
|
int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_codec *params)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->get_params)
|
|
ret = dai->driver->cops->get_params(cstream, params, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);
|
|
|
|
int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
size_t bytes)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->ack)
|
|
ret = dai->driver->cops->ack(cstream, bytes, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);
|
|
|
|
int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_compr_tstamp *tstamp)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->pointer)
|
|
ret = dai->driver->cops->pointer(cstream, tstamp, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);
|
|
|
|
int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_compr_metadata *metadata)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->set_metadata)
|
|
ret = dai->driver->cops->set_metadata(cstream, metadata, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);
|
|
|
|
int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
|
|
struct snd_compr_stream *cstream,
|
|
struct snd_compr_metadata *metadata)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (dai->driver->cops &&
|
|
dai->driver->cops->get_metadata)
|
|
ret = dai->driver->cops->get_metadata(cstream, metadata, dai);
|
|
|
|
return soc_dai_ret(dai, ret);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);
|