855 lines
22 KiB
C
855 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) ST-Ericsson SA 2012
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*
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* Author: Ola Lilja <ola.o.lilja@stericsson.com>,
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* Roger Nilsson <roger.xr.nilsson@stericsson.com>
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* for ST-Ericsson.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/bitops.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <linux/mfd/dbx500-prcmu.h>
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#include <linux/platform_data/asoc-ux500-msp.h>
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#include <sound/soc.h>
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#include <sound/soc-dai.h>
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#include <sound/dmaengine_pcm.h>
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#include "ux500_msp_i2s.h"
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#include "ux500_msp_dai.h"
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#include "ux500_pcm.h"
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static int setup_pcm_multichan(struct snd_soc_dai *dai,
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struct ux500_msp_config *msp_config)
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{
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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struct msp_multichannel_config *multi =
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&msp_config->multichannel_config;
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if (drvdata->slots > 1) {
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msp_config->multichannel_configured = 1;
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multi->tx_multichannel_enable = true;
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multi->rx_multichannel_enable = true;
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multi->rx_comparison_enable_mode = MSP_COMPARISON_DISABLED;
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multi->tx_channel_0_enable = drvdata->tx_mask;
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multi->tx_channel_1_enable = 0;
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multi->tx_channel_2_enable = 0;
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multi->tx_channel_3_enable = 0;
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multi->rx_channel_0_enable = drvdata->rx_mask;
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multi->rx_channel_1_enable = 0;
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multi->rx_channel_2_enable = 0;
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multi->rx_channel_3_enable = 0;
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dev_dbg(dai->dev,
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"%s: Multichannel enabled. Slots: %d, TX: %u, RX: %u\n",
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__func__, drvdata->slots, multi->tx_channel_0_enable,
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multi->rx_channel_0_enable);
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}
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return 0;
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}
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static int setup_frameper(struct snd_soc_dai *dai, unsigned int rate,
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struct msp_protdesc *prot_desc)
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{
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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switch (drvdata->slots) {
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case 1:
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switch (rate) {
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case 8000:
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prot_desc->frame_period =
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FRAME_PER_SINGLE_SLOT_8_KHZ;
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break;
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case 16000:
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prot_desc->frame_period =
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FRAME_PER_SINGLE_SLOT_16_KHZ;
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break;
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case 44100:
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prot_desc->frame_period =
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FRAME_PER_SINGLE_SLOT_44_1_KHZ;
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break;
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case 48000:
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prot_desc->frame_period =
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FRAME_PER_SINGLE_SLOT_48_KHZ;
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break;
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default:
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dev_err(dai->dev,
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"%s: Error: Unsupported sample-rate (freq = %d)!\n",
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__func__, rate);
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return -EINVAL;
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}
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break;
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case 2:
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prot_desc->frame_period = FRAME_PER_2_SLOTS;
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break;
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case 8:
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prot_desc->frame_period = FRAME_PER_8_SLOTS;
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break;
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case 16:
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prot_desc->frame_period = FRAME_PER_16_SLOTS;
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break;
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default:
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dev_err(dai->dev,
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"%s: Error: Unsupported slot-count (slots = %d)!\n",
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__func__, drvdata->slots);
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return -EINVAL;
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}
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prot_desc->clocks_per_frame =
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prot_desc->frame_period+1;
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dev_dbg(dai->dev, "%s: Clocks per frame: %u\n",
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__func__,
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prot_desc->clocks_per_frame);
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return 0;
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}
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static int setup_pcm_framing(struct snd_soc_dai *dai, unsigned int rate,
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struct msp_protdesc *prot_desc)
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{
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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u32 frame_length = MSP_FRAME_LEN_1;
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prot_desc->frame_width = 0;
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switch (drvdata->slots) {
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case 1:
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frame_length = MSP_FRAME_LEN_1;
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break;
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case 2:
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frame_length = MSP_FRAME_LEN_2;
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break;
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case 8:
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frame_length = MSP_FRAME_LEN_8;
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break;
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case 16:
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frame_length = MSP_FRAME_LEN_16;
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break;
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default:
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dev_err(dai->dev,
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"%s: Error: Unsupported slot-count (slots = %d)!\n",
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__func__, drvdata->slots);
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return -EINVAL;
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}
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prot_desc->tx_frame_len_1 = frame_length;
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prot_desc->rx_frame_len_1 = frame_length;
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prot_desc->tx_frame_len_2 = frame_length;
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prot_desc->rx_frame_len_2 = frame_length;
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prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16;
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prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16;
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prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16;
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prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16;
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return setup_frameper(dai, rate, prot_desc);
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}
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static int setup_clocking(struct snd_soc_dai *dai,
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unsigned int fmt,
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struct ux500_msp_config *msp_config)
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{
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switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
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case SND_SOC_DAIFMT_NB_NF:
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break;
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case SND_SOC_DAIFMT_NB_IF:
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msp_config->tx_fsync_pol ^= 1 << TFSPOL_SHIFT;
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msp_config->rx_fsync_pol ^= 1 << RFSPOL_SHIFT;
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break;
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default:
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dev_err(dai->dev,
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"%s: Error: Unsupported inversion (fmt = 0x%x)!\n",
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__func__, fmt);
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return -EINVAL;
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}
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switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
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case SND_SOC_DAIFMT_BC_FC:
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dev_dbg(dai->dev, "%s: Codec is master.\n", __func__);
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msp_config->iodelay = 0x20;
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msp_config->rx_fsync_sel = 0;
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msp_config->tx_fsync_sel = 1 << TFSSEL_SHIFT;
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msp_config->tx_clk_sel = 0;
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msp_config->rx_clk_sel = 0;
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msp_config->srg_clk_sel = 0x2 << SCKSEL_SHIFT;
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break;
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case SND_SOC_DAIFMT_BP_FP:
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dev_dbg(dai->dev, "%s: Codec is slave.\n", __func__);
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msp_config->tx_clk_sel = TX_CLK_SEL_SRG;
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msp_config->tx_fsync_sel = TX_SYNC_SRG_PROG;
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msp_config->rx_clk_sel = RX_CLK_SEL_SRG;
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msp_config->rx_fsync_sel = RX_SYNC_SRG;
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msp_config->srg_clk_sel = 1 << SCKSEL_SHIFT;
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break;
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default:
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dev_err(dai->dev, "%s: Error: Unsupported master (fmt = 0x%x)!\n",
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__func__, fmt);
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return -EINVAL;
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}
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return 0;
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}
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static int setup_pcm_protdesc(struct snd_soc_dai *dai,
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unsigned int fmt,
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struct msp_protdesc *prot_desc)
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{
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prot_desc->rx_phase_mode = MSP_SINGLE_PHASE;
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prot_desc->tx_phase_mode = MSP_SINGLE_PHASE;
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prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE;
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prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_IMEDIATE;
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prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST;
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prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST;
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prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_HI);
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prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_HI << RFSPOL_SHIFT;
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if ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) == SND_SOC_DAIFMT_DSP_A) {
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dev_dbg(dai->dev, "%s: DSP_A.\n", __func__);
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prot_desc->rx_clk_pol = MSP_RISING_EDGE;
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prot_desc->tx_clk_pol = MSP_FALLING_EDGE;
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prot_desc->rx_data_delay = MSP_DELAY_1;
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prot_desc->tx_data_delay = MSP_DELAY_1;
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} else {
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dev_dbg(dai->dev, "%s: DSP_B.\n", __func__);
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prot_desc->rx_clk_pol = MSP_FALLING_EDGE;
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prot_desc->tx_clk_pol = MSP_RISING_EDGE;
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prot_desc->rx_data_delay = MSP_DELAY_0;
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prot_desc->tx_data_delay = MSP_DELAY_0;
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}
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prot_desc->rx_half_word_swap = MSP_SWAP_NONE;
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prot_desc->tx_half_word_swap = MSP_SWAP_NONE;
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prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR;
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prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR;
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prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE;
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return 0;
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}
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static int setup_i2s_protdesc(struct msp_protdesc *prot_desc)
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{
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prot_desc->rx_phase_mode = MSP_DUAL_PHASE;
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prot_desc->tx_phase_mode = MSP_DUAL_PHASE;
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prot_desc->rx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC;
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prot_desc->tx_phase2_start_mode = MSP_PHASE2_START_MODE_FSYNC;
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prot_desc->rx_byte_order = MSP_BTF_MS_BIT_FIRST;
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prot_desc->tx_byte_order = MSP_BTF_MS_BIT_FIRST;
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prot_desc->tx_fsync_pol = MSP_FSYNC_POL(MSP_FSYNC_POL_ACT_LO);
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prot_desc->rx_fsync_pol = MSP_FSYNC_POL_ACT_LO << RFSPOL_SHIFT;
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prot_desc->rx_frame_len_1 = MSP_FRAME_LEN_1;
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prot_desc->rx_frame_len_2 = MSP_FRAME_LEN_1;
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prot_desc->tx_frame_len_1 = MSP_FRAME_LEN_1;
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prot_desc->tx_frame_len_2 = MSP_FRAME_LEN_1;
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prot_desc->rx_elem_len_1 = MSP_ELEM_LEN_16;
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prot_desc->rx_elem_len_2 = MSP_ELEM_LEN_16;
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prot_desc->tx_elem_len_1 = MSP_ELEM_LEN_16;
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prot_desc->tx_elem_len_2 = MSP_ELEM_LEN_16;
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prot_desc->rx_clk_pol = MSP_RISING_EDGE;
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prot_desc->tx_clk_pol = MSP_FALLING_EDGE;
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prot_desc->rx_data_delay = MSP_DELAY_0;
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prot_desc->tx_data_delay = MSP_DELAY_0;
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prot_desc->tx_half_word_swap = MSP_SWAP_NONE;
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prot_desc->rx_half_word_swap = MSP_SWAP_NONE;
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prot_desc->compression_mode = MSP_COMPRESS_MODE_LINEAR;
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prot_desc->expansion_mode = MSP_EXPAND_MODE_LINEAR;
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prot_desc->frame_sync_ignore = MSP_FSYNC_IGNORE;
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return 0;
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}
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static int setup_msp_config(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai,
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struct ux500_msp_config *msp_config)
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{
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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struct msp_protdesc *prot_desc = &msp_config->protdesc;
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struct snd_pcm_runtime *runtime = substream->runtime;
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unsigned int fmt = drvdata->fmt;
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int ret;
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memset(msp_config, 0, sizeof(*msp_config));
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msp_config->f_inputclk = drvdata->master_clk;
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msp_config->tx_fifo_config = TX_FIFO_ENABLE;
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msp_config->rx_fifo_config = RX_FIFO_ENABLE;
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msp_config->def_elem_len = 1;
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msp_config->direction = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
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MSP_DIR_TX : MSP_DIR_RX;
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msp_config->data_size = MSP_DATA_BITS_32;
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msp_config->frame_freq = runtime->rate;
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dev_dbg(dai->dev, "%s: f_inputclk = %u, frame_freq = %u.\n",
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__func__, msp_config->f_inputclk, msp_config->frame_freq);
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/* To avoid division by zero */
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prot_desc->clocks_per_frame = 1;
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dev_dbg(dai->dev, "%s: rate: %u, channels: %d.\n", __func__,
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runtime->rate, runtime->channels);
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switch (fmt &
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(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) {
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case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BP_FP:
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dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__);
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msp_config->default_protdesc = 1;
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msp_config->protocol = MSP_I2S_PROTOCOL;
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break;
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case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BC_FC:
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dev_dbg(dai->dev, "%s: SND_SOC_DAIFMT_I2S.\n", __func__);
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msp_config->data_size = MSP_DATA_BITS_16;
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msp_config->protocol = MSP_I2S_PROTOCOL;
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ret = setup_i2s_protdesc(prot_desc);
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if (ret < 0)
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return ret;
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break;
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case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BP_FP:
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case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BC_FC:
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case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BP_FP:
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case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BC_FC:
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dev_dbg(dai->dev, "%s: PCM format.\n", __func__);
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msp_config->data_size = MSP_DATA_BITS_16;
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msp_config->protocol = MSP_PCM_PROTOCOL;
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ret = setup_pcm_protdesc(dai, fmt, prot_desc);
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if (ret < 0)
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return ret;
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ret = setup_pcm_multichan(dai, msp_config);
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if (ret < 0)
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return ret;
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ret = setup_pcm_framing(dai, runtime->rate, prot_desc);
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if (ret < 0)
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return ret;
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break;
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default:
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dev_err(dai->dev, "%s: Error: Unsupported format (%d)!\n",
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__func__, fmt);
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return -EINVAL;
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}
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return setup_clocking(dai, fmt, msp_config);
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}
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static int ux500_msp_dai_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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int ret = 0;
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
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snd_pcm_stream_str(substream));
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/* Enable regulator */
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ret = regulator_enable(drvdata->reg_vape);
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if (ret != 0) {
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dev_err(drvdata->msp->dev,
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"%s: Failed to enable regulator!\n", __func__);
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return ret;
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}
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/* Prepare and enable clocks */
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dev_dbg(dai->dev, "%s: Enabling MSP-clocks.\n", __func__);
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ret = clk_prepare_enable(drvdata->pclk);
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if (ret) {
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dev_err(drvdata->msp->dev,
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"%s: Failed to prepare/enable pclk!\n", __func__);
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goto err_pclk;
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}
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ret = clk_prepare_enable(drvdata->clk);
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if (ret) {
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dev_err(drvdata->msp->dev,
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"%s: Failed to prepare/enable clk!\n", __func__);
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goto err_clk;
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}
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return ret;
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err_clk:
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clk_disable_unprepare(drvdata->pclk);
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err_pclk:
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regulator_disable(drvdata->reg_vape);
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return ret;
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}
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static void ux500_msp_dai_shutdown(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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int ret;
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struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
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bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
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dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n", __func__, dai->id,
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snd_pcm_stream_str(substream));
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if (drvdata->vape_opp_constraint == 1) {
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prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
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"ux500_msp_i2s", 50);
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drvdata->vape_opp_constraint = 0;
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}
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if (ux500_msp_i2s_close(drvdata->msp,
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is_playback ? MSP_DIR_TX : MSP_DIR_RX)) {
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dev_err(dai->dev,
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"%s: Error: MSP %d (%s): Unable to close i2s.\n",
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__func__, dai->id, snd_pcm_stream_str(substream));
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}
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/* Disable and unprepare clocks */
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clk_disable_unprepare(drvdata->clk);
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clk_disable_unprepare(drvdata->pclk);
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/* Disable regulator */
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ret = regulator_disable(drvdata->reg_vape);
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if (ret < 0)
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dev_err(dai->dev,
|
|
"%s: ERROR: Failed to disable regulator (%d)!\n",
|
|
__func__, ret);
|
|
}
|
|
|
|
static int ux500_msp_dai_prepare(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
int ret = 0;
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct ux500_msp_config msp_config;
|
|
|
|
dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (rate = %d).\n", __func__,
|
|
dai->id, snd_pcm_stream_str(substream), runtime->rate);
|
|
|
|
setup_msp_config(substream, dai, &msp_config);
|
|
|
|
ret = ux500_msp_i2s_open(drvdata->msp, &msp_config);
|
|
if (ret < 0) {
|
|
dev_err(dai->dev, "%s: Error: msp_setup failed (ret = %d)!\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Set OPP-level */
|
|
if ((drvdata->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) &&
|
|
(drvdata->msp->f_bitclk > 19200000)) {
|
|
/* If the bit-clock is higher than 19.2MHz, Vape should be
|
|
* run in 100% OPP. Only when bit-clock is used (MSP master)
|
|
*/
|
|
prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
|
|
"ux500-msp-i2s", 100);
|
|
drvdata->vape_opp_constraint = 1;
|
|
} else {
|
|
prcmu_qos_update_requirement(PRCMU_QOS_APE_OPP,
|
|
"ux500-msp-i2s", 50);
|
|
drvdata->vape_opp_constraint = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ux500_msp_dai_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
unsigned int mask, slots_active;
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
|
|
dev_dbg(dai->dev, "%s: MSP %d (%s): Enter.\n",
|
|
__func__, dai->id, snd_pcm_stream_str(substream));
|
|
|
|
switch (drvdata->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_I2S:
|
|
snd_pcm_hw_constraint_minmax(runtime,
|
|
SNDRV_PCM_HW_PARAM_CHANNELS,
|
|
1, 2);
|
|
break;
|
|
|
|
case SND_SOC_DAIFMT_DSP_B:
|
|
case SND_SOC_DAIFMT_DSP_A:
|
|
mask = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
|
|
drvdata->tx_mask :
|
|
drvdata->rx_mask;
|
|
|
|
slots_active = hweight32(mask);
|
|
dev_dbg(dai->dev, "TDM-slots active: %d", slots_active);
|
|
|
|
snd_pcm_hw_constraint_single(runtime,
|
|
SNDRV_PCM_HW_PARAM_CHANNELS,
|
|
slots_active);
|
|
break;
|
|
|
|
default:
|
|
dev_err(dai->dev,
|
|
"%s: Error: Unsupported protocol (fmt = 0x%x)!\n",
|
|
__func__, drvdata->fmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ux500_msp_dai_set_dai_fmt(struct snd_soc_dai *dai,
|
|
unsigned int fmt)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
|
|
dev_dbg(dai->dev, "%s: MSP %d: Enter.\n", __func__, dai->id);
|
|
|
|
switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK |
|
|
SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK)) {
|
|
case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BP_FP:
|
|
case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_BC_FC:
|
|
case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BP_FP:
|
|
case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_BC_FC:
|
|
case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BP_FP:
|
|
case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_BC_FC:
|
|
break;
|
|
|
|
default:
|
|
dev_err(dai->dev,
|
|
"%s: Error: Unsupported protocol/master (fmt = 0x%x)!\n",
|
|
__func__, drvdata->fmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
|
case SND_SOC_DAIFMT_NB_NF:
|
|
case SND_SOC_DAIFMT_NB_IF:
|
|
case SND_SOC_DAIFMT_IB_IF:
|
|
break;
|
|
|
|
default:
|
|
dev_err(dai->dev,
|
|
"%s: Error: Unsupported inversion (fmt = 0x%x)!\n",
|
|
__func__, drvdata->fmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
drvdata->fmt = fmt;
|
|
return 0;
|
|
}
|
|
|
|
static int ux500_msp_dai_set_tdm_slot(struct snd_soc_dai *dai,
|
|
unsigned int tx_mask,
|
|
unsigned int rx_mask,
|
|
int slots, int slot_width)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
unsigned int cap;
|
|
|
|
switch (slots) {
|
|
case 1:
|
|
cap = 0x01;
|
|
break;
|
|
case 2:
|
|
cap = 0x03;
|
|
break;
|
|
case 8:
|
|
cap = 0xFF;
|
|
break;
|
|
case 16:
|
|
cap = 0xFFFF;
|
|
break;
|
|
default:
|
|
dev_err(dai->dev, "%s: Error: Unsupported slot-count (%d)!\n",
|
|
__func__, slots);
|
|
return -EINVAL;
|
|
}
|
|
drvdata->slots = slots;
|
|
|
|
if (!(slot_width == 16)) {
|
|
dev_err(dai->dev, "%s: Error: Unsupported slot-width (%d)!\n",
|
|
__func__, slot_width);
|
|
return -EINVAL;
|
|
}
|
|
drvdata->slot_width = slot_width;
|
|
|
|
drvdata->tx_mask = tx_mask & cap;
|
|
drvdata->rx_mask = rx_mask & cap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ux500_msp_dai_set_dai_sysclk(struct snd_soc_dai *dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
|
|
dev_dbg(dai->dev, "%s: MSP %d: Enter. clk-id: %d, freq: %u.\n",
|
|
__func__, dai->id, clk_id, freq);
|
|
|
|
switch (clk_id) {
|
|
case UX500_MSP_MASTER_CLOCK:
|
|
drvdata->master_clk = freq;
|
|
break;
|
|
|
|
default:
|
|
dev_err(dai->dev, "%s: MSP %d: Invalid clk-id (%d)!\n",
|
|
__func__, dai->id, clk_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ux500_msp_dai_trigger(struct snd_pcm_substream *substream,
|
|
int cmd, struct snd_soc_dai *dai)
|
|
{
|
|
int ret = 0;
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
|
|
dev_dbg(dai->dev, "%s: MSP %d (%s): Enter (msp->id = %d, cmd = %d).\n",
|
|
__func__, dai->id, snd_pcm_stream_str(substream),
|
|
(int)drvdata->msp->id, cmd);
|
|
|
|
ret = ux500_msp_i2s_trigger(drvdata->msp, cmd, substream->stream);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ux500_msp_dai_of_probe(struct snd_soc_dai *dai)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
struct snd_dmaengine_dai_dma_data *playback_dma_data;
|
|
struct snd_dmaengine_dai_dma_data *capture_dma_data;
|
|
|
|
playback_dma_data = devm_kzalloc(dai->dev,
|
|
sizeof(*playback_dma_data),
|
|
GFP_KERNEL);
|
|
if (!playback_dma_data)
|
|
return -ENOMEM;
|
|
|
|
capture_dma_data = devm_kzalloc(dai->dev,
|
|
sizeof(*capture_dma_data),
|
|
GFP_KERNEL);
|
|
if (!capture_dma_data)
|
|
return -ENOMEM;
|
|
|
|
playback_dma_data->addr = drvdata->msp->playback_dma_data.tx_rx_addr;
|
|
capture_dma_data->addr = drvdata->msp->capture_dma_data.tx_rx_addr;
|
|
|
|
playback_dma_data->maxburst = 4;
|
|
capture_dma_data->maxburst = 4;
|
|
|
|
snd_soc_dai_init_dma_data(dai, playback_dma_data, capture_dma_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ux500_msp_dai_probe(struct snd_soc_dai *dai)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(dai->dev);
|
|
struct msp_i2s_platform_data *pdata = dai->dev->platform_data;
|
|
int ret;
|
|
|
|
if (!pdata) {
|
|
ret = ux500_msp_dai_of_probe(dai);
|
|
return ret;
|
|
}
|
|
|
|
drvdata->msp->playback_dma_data.data_size = drvdata->slot_width;
|
|
drvdata->msp->capture_dma_data.data_size = drvdata->slot_width;
|
|
|
|
snd_soc_dai_init_dma_data(dai,
|
|
&drvdata->msp->playback_dma_data,
|
|
&drvdata->msp->capture_dma_data);
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dai_ops ux500_msp_dai_ops[] = {
|
|
{
|
|
.set_sysclk = ux500_msp_dai_set_dai_sysclk,
|
|
.set_fmt = ux500_msp_dai_set_dai_fmt,
|
|
.set_tdm_slot = ux500_msp_dai_set_tdm_slot,
|
|
.startup = ux500_msp_dai_startup,
|
|
.shutdown = ux500_msp_dai_shutdown,
|
|
.prepare = ux500_msp_dai_prepare,
|
|
.trigger = ux500_msp_dai_trigger,
|
|
.hw_params = ux500_msp_dai_hw_params,
|
|
}
|
|
};
|
|
|
|
static struct snd_soc_dai_driver ux500_msp_dai_drv = {
|
|
.probe = ux500_msp_dai_probe,
|
|
.playback.channels_min = UX500_MSP_MIN_CHANNELS,
|
|
.playback.channels_max = UX500_MSP_MAX_CHANNELS,
|
|
.playback.rates = UX500_I2S_RATES,
|
|
.playback.formats = UX500_I2S_FORMATS,
|
|
.capture.channels_min = UX500_MSP_MIN_CHANNELS,
|
|
.capture.channels_max = UX500_MSP_MAX_CHANNELS,
|
|
.capture.rates = UX500_I2S_RATES,
|
|
.capture.formats = UX500_I2S_FORMATS,
|
|
.ops = ux500_msp_dai_ops,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver ux500_msp_component = {
|
|
.name = "ux500-msp",
|
|
.legacy_dai_naming = 1,
|
|
};
|
|
|
|
|
|
static int ux500_msp_drv_probe(struct platform_device *pdev)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata;
|
|
struct msp_i2s_platform_data *pdata = pdev->dev.platform_data;
|
|
struct device_node *np = pdev->dev.of_node;
|
|
int ret = 0;
|
|
|
|
if (!pdata && !np) {
|
|
dev_err(&pdev->dev, "No platform data or Device Tree found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
drvdata = devm_kzalloc(&pdev->dev,
|
|
sizeof(struct ux500_msp_i2s_drvdata),
|
|
GFP_KERNEL);
|
|
if (!drvdata)
|
|
return -ENOMEM;
|
|
|
|
drvdata->fmt = 0;
|
|
drvdata->slots = 1;
|
|
drvdata->tx_mask = 0x01;
|
|
drvdata->rx_mask = 0x01;
|
|
drvdata->slot_width = 16;
|
|
drvdata->master_clk = MSP_INPUT_FREQ_APB;
|
|
|
|
drvdata->reg_vape = devm_regulator_get(&pdev->dev, "v-ape");
|
|
if (IS_ERR(drvdata->reg_vape)) {
|
|
ret = (int)PTR_ERR(drvdata->reg_vape);
|
|
dev_err(&pdev->dev,
|
|
"%s: ERROR: Failed to get Vape supply (%d)!\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, (char *)pdev->name, 50);
|
|
|
|
drvdata->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
|
|
if (IS_ERR(drvdata->pclk)) {
|
|
ret = (int)PTR_ERR(drvdata->pclk);
|
|
dev_err(&pdev->dev,
|
|
"%s: ERROR: devm_clk_get of pclk failed (%d)!\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
drvdata->clk = devm_clk_get(&pdev->dev, NULL);
|
|
if (IS_ERR(drvdata->clk)) {
|
|
ret = (int)PTR_ERR(drvdata->clk);
|
|
dev_err(&pdev->dev,
|
|
"%s: ERROR: devm_clk_get failed (%d)!\n",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = ux500_msp_i2s_init_msp(pdev, &drvdata->msp,
|
|
pdev->dev.platform_data);
|
|
if (!drvdata->msp) {
|
|
dev_err(&pdev->dev,
|
|
"%s: ERROR: Failed to init MSP-struct (%d)!",
|
|
__func__, ret);
|
|
return ret;
|
|
}
|
|
dev_set_drvdata(&pdev->dev, drvdata);
|
|
|
|
ret = snd_soc_register_component(&pdev->dev, &ux500_msp_component,
|
|
&ux500_msp_dai_drv, 1);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "Error: %s: Failed to register MSP%d!\n",
|
|
__func__, drvdata->msp->id);
|
|
return ret;
|
|
}
|
|
|
|
ret = ux500_pcm_register_platform(pdev);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev,
|
|
"Error: %s: Failed to register PCM platform device!\n",
|
|
__func__);
|
|
goto err_reg_plat;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_reg_plat:
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
return ret;
|
|
}
|
|
|
|
static int ux500_msp_drv_remove(struct platform_device *pdev)
|
|
{
|
|
struct ux500_msp_i2s_drvdata *drvdata = dev_get_drvdata(&pdev->dev);
|
|
|
|
ux500_pcm_unregister_platform(pdev);
|
|
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
|
|
prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, "ux500_msp_i2s");
|
|
|
|
ux500_msp_i2s_cleanup_msp(pdev, drvdata->msp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id ux500_msp_i2s_match[] = {
|
|
{ .compatible = "stericsson,ux500-msp-i2s", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, ux500_msp_i2s_match);
|
|
|
|
static struct platform_driver msp_i2s_driver = {
|
|
.driver = {
|
|
.name = "ux500-msp-i2s",
|
|
.of_match_table = ux500_msp_i2s_match,
|
|
},
|
|
.probe = ux500_msp_drv_probe,
|
|
.remove = ux500_msp_drv_remove,
|
|
};
|
|
module_platform_driver(msp_i2s_driver);
|
|
|
|
MODULE_LICENSE("GPL v2");
|