[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/soc/blackfin/bf5xx-i2s.c b/src/kernel/linux/v4.14/sound/soc/blackfin/bf5xx-i2s.c
new file mode 100644
index 0000000..b69aeef
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/soc/blackfin/bf5xx-i2s.c
@@ -0,0 +1,391 @@
+/*
+ * File: sound/soc/blackfin/bf5xx-i2s.c
+ * Author: Cliff Cai <Cliff.Cai@analog.com>
+ *
+ * Created: Tue June 06 2008
+ * Description: Blackfin I2S CPU DAI driver
+ *
+ * Modified:
+ * Copyright 2008 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <asm/irq.h>
+#include <asm/portmux.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+
+#include "bf5xx-sport.h"
+#include "bf5xx-i2s-pcm.h"
+
+struct bf5xx_i2s_port {
+ u16 tcr1;
+ u16 rcr1;
+ u16 tcr2;
+ u16 rcr2;
+ int configured;
+
+ unsigned int slots;
+ unsigned int tx_mask;
+ unsigned int rx_mask;
+
+ struct bf5xx_i2s_pcm_data tx_dma_data;
+ struct bf5xx_i2s_pcm_data rx_dma_data;
+};
+
+static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ int ret = 0;
+
+ /* interface format:support I2S,slave mode */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ bf5xx_i2s->tcr1 |= TFSR | TCKFE;
+ bf5xx_i2s->rcr1 |= RFSR | RCKFE;
+ bf5xx_i2s->tcr2 |= TSFSE;
+ bf5xx_i2s->rcr2 |= RSFSE;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ bf5xx_i2s->tcr1 |= TFSR;
+ bf5xx_i2s->rcr1 |= RFSR;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ ret = -EINVAL;
+ break;
+ default:
+ dev_err(cpu_dai->dev, "%s: Unknown DAI format type\n",
+ __func__);
+ ret = -EINVAL;
+ break;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ case SND_SOC_DAIFMT_CBM_CFS:
+ case SND_SOC_DAIFMT_CBS_CFM:
+ ret = -EINVAL;
+ break;
+ default:
+ dev_err(cpu_dai->dev, "%s: Unknown DAI master type\n",
+ __func__);
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ int ret = 0;
+
+ bf5xx_i2s->tcr2 &= ~0x1f;
+ bf5xx_i2s->rcr2 &= ~0x1f;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ bf5xx_i2s->tcr2 |= 7;
+ bf5xx_i2s->rcr2 |= 7;
+ sport_handle->wdsize = 1;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ bf5xx_i2s->tcr2 |= 15;
+ bf5xx_i2s->rcr2 |= 15;
+ sport_handle->wdsize = 2;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ bf5xx_i2s->tcr2 |= 23;
+ bf5xx_i2s->rcr2 |= 23;
+ sport_handle->wdsize = 3;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ bf5xx_i2s->tcr2 |= 31;
+ bf5xx_i2s->rcr2 |= 31;
+ sport_handle->wdsize = 4;
+ break;
+ }
+
+ if (!bf5xx_i2s->configured) {
+ /*
+ * TX and RX are not independent,they are enabled at the
+ * same time, even if only one side is running. So, we
+ * need to configure both of them at the time when the first
+ * stream is opened.
+ *
+ * CPU DAI:slave mode.
+ */
+ bf5xx_i2s->configured = 1;
+ ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
+ bf5xx_i2s->rcr2, 0, 0);
+ if (ret) {
+ dev_err(dai->dev, "SPORT is busy!\n");
+ return -EBUSY;
+ }
+
+ ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
+ bf5xx_i2s->tcr2, 0, 0);
+ if (ret) {
+ dev_err(dai->dev, "SPORT is busy!\n");
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+
+static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+
+ dev_dbg(dai->dev, "%s enter\n", __func__);
+ /* No active stream, SPORT is allowed to be configured again. */
+ if (!dai->active)
+ bf5xx_i2s->configured = 0;
+}
+
+static int bf5xx_i2s_set_channel_map(struct snd_soc_dai *dai,
+ unsigned int tx_num, unsigned int *tx_slot,
+ unsigned int rx_num, unsigned int *rx_slot)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ unsigned int tx_mapped = 0, rx_mapped = 0;
+ unsigned int slot;
+ int i;
+
+ if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
+ (rx_num > BFIN_TDM_DAI_MAX_SLOTS))
+ return -EINVAL;
+
+ for (i = 0; i < tx_num; i++) {
+ slot = tx_slot[i];
+ if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+ (!(tx_mapped & (1 << slot)))) {
+ bf5xx_i2s->tx_dma_data.map[i] = slot;
+ tx_mapped |= 1 << slot;
+ } else
+ return -EINVAL;
+ }
+ for (i = 0; i < rx_num; i++) {
+ slot = rx_slot[i];
+ if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+ (!(rx_mapped & (1 << slot)))) {
+ bf5xx_i2s->rx_dma_data.map[i] = slot;
+ rx_mapped |= 1 << slot;
+ } else
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int bf5xx_i2s_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int width)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+
+ if (slots % 8 != 0 || slots > 8)
+ return -EINVAL;
+
+ if (width != 32)
+ return -EINVAL;
+
+ bf5xx_i2s->slots = slots;
+ bf5xx_i2s->tx_mask = tx_mask;
+ bf5xx_i2s->rx_mask = rx_mask;
+
+ bf5xx_i2s->tx_dma_data.tdm_mode = slots != 0;
+ bf5xx_i2s->rx_dma_data.tdm_mode = slots != 0;
+
+ return sport_set_multichannel(sport_handle, slots, tx_mask, rx_mask, 0);
+}
+
+#ifdef CONFIG_PM
+static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+
+ dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id);
+
+ if (dai->capture_active)
+ sport_rx_stop(sport_handle);
+ if (dai->playback_active)
+ sport_tx_stop(sport_handle);
+ return 0;
+}
+
+static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ int ret;
+
+ dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id);
+
+ ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
+ bf5xx_i2s->rcr2, 0, 0);
+ if (ret) {
+ dev_err(dai->dev, "SPORT is busy!\n");
+ return -EBUSY;
+ }
+
+ ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
+ bf5xx_i2s->tcr2, 0, 0);
+ if (ret) {
+ dev_err(dai->dev, "SPORT is busy!\n");
+ return -EBUSY;
+ }
+
+ return sport_set_multichannel(sport_handle, bf5xx_i2s->slots,
+ bf5xx_i2s->tx_mask, bf5xx_i2s->rx_mask, 0);
+}
+
+#else
+#define bf5xx_i2s_suspend NULL
+#define bf5xx_i2s_resume NULL
+#endif
+
+static int bf5xx_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ unsigned int i;
+
+ for (i = 0; i < BFIN_TDM_DAI_MAX_SLOTS; i++) {
+ bf5xx_i2s->tx_dma_data.map[i] = i;
+ bf5xx_i2s->rx_dma_data.map[i] = i;
+ }
+
+ dai->playback_dma_data = &bf5xx_i2s->tx_dma_data;
+ dai->capture_dma_data = &bf5xx_i2s->rx_dma_data;
+
+ return 0;
+}
+
+#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
+ SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
+ SNDRV_PCM_RATE_96000)
+
+#define BF5XX_I2S_FORMATS \
+ (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
+ .shutdown = bf5xx_i2s_shutdown,
+ .hw_params = bf5xx_i2s_hw_params,
+ .set_fmt = bf5xx_i2s_set_dai_fmt,
+ .set_tdm_slot = bf5xx_i2s_set_tdm_slot,
+ .set_channel_map = bf5xx_i2s_set_channel_map,
+};
+
+static struct snd_soc_dai_driver bf5xx_i2s_dai = {
+ .probe = bf5xx_i2s_dai_probe,
+ .suspend = bf5xx_i2s_suspend,
+ .resume = bf5xx_i2s_resume,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = BF5XX_I2S_RATES,
+ .formats = BF5XX_I2S_FORMATS,},
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = BF5XX_I2S_RATES,
+ .formats = BF5XX_I2S_FORMATS,},
+ .ops = &bf5xx_i2s_dai_ops,
+};
+
+static const struct snd_soc_component_driver bf5xx_i2s_component = {
+ .name = "bf5xx-i2s",
+};
+
+static int bf5xx_i2s_probe(struct platform_device *pdev)
+{
+ struct sport_device *sport_handle;
+ int ret;
+
+ /* configure SPORT for I2S */
+ sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
+ sizeof(struct bf5xx_i2s_port));
+ if (!sport_handle)
+ return -ENODEV;
+
+ /* register with the ASoC layers */
+ ret = snd_soc_register_component(&pdev->dev, &bf5xx_i2s_component,
+ &bf5xx_i2s_dai, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to register DAI: %d\n", ret);
+ sport_done(sport_handle);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int bf5xx_i2s_remove(struct platform_device *pdev)
+{
+ struct sport_device *sport_handle = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s enter\n", __func__);
+
+ snd_soc_unregister_component(&pdev->dev);
+ sport_done(sport_handle);
+
+ return 0;
+}
+
+static struct platform_driver bfin_i2s_driver = {
+ .probe = bf5xx_i2s_probe,
+ .remove = bf5xx_i2s_remove,
+ .driver = {
+ .name = "bfin-i2s",
+ },
+};
+
+module_platform_driver(bfin_i2s_driver);
+
+/* Module information */
+MODULE_AUTHOR("Cliff Cai");
+MODULE_DESCRIPTION("I2S driver for ADI Blackfin");
+MODULE_LICENSE("GPL");
+