diff options
Diffstat (limited to 'sound/soc/kirkwood')
-rw-r--r-- | sound/soc/kirkwood/Kconfig | 18 | ||||
-rw-r--r-- | sound/soc/kirkwood/Makefile | 8 | ||||
-rw-r--r-- | sound/soc/kirkwood/armada-370-db.c | 156 | ||||
-rw-r--r-- | sound/soc/kirkwood/kirkwood-dma.c | 262 | ||||
-rw-r--r-- | sound/soc/kirkwood/kirkwood-i2s.c | 775 | ||||
-rw-r--r-- | sound/soc/kirkwood/kirkwood.h | 148 |
6 files changed, 1367 insertions, 0 deletions
diff --git a/sound/soc/kirkwood/Kconfig b/sound/soc/kirkwood/Kconfig new file mode 100644 index 0000000000..5d8a86b26f --- /dev/null +++ b/sound/soc/kirkwood/Kconfig @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +config SND_KIRKWOOD_SOC + tristate "SoC Audio for the Marvell Kirkwood and Dove chips" + depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST + help + Say Y or M if you want to add support for codecs attached to + the Kirkwood I2S interface. You will also need to select the + audio interfaces to support below. + +config SND_KIRKWOOD_SOC_ARMADA370_DB + tristate "SoC Audio support for Armada 370 DB" + depends on SND_KIRKWOOD_SOC && (ARCH_MVEBU || COMPILE_TEST) && I2C + select SND_SOC_CS42L51 + select SND_SOC_SPDIF + help + Say Y if you want to add support for SoC audio on + the Armada 370 Development Board. + diff --git a/sound/soc/kirkwood/Makefile b/sound/soc/kirkwood/Makefile new file mode 100644 index 0000000000..e2d279f16a --- /dev/null +++ b/sound/soc/kirkwood/Makefile @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-soc-kirkwood-objs := kirkwood-dma.o kirkwood-i2s.o + +obj-$(CONFIG_SND_KIRKWOOD_SOC) += snd-soc-kirkwood.o + +snd-soc-armada-370-db-objs := armada-370-db.o + +obj-$(CONFIG_SND_KIRKWOOD_SOC_ARMADA370_DB) += snd-soc-armada-370-db.o diff --git a/sound/soc/kirkwood/armada-370-db.c b/sound/soc/kirkwood/armada-370-db.c new file mode 100644 index 0000000000..81326426da --- /dev/null +++ b/sound/soc/kirkwood/armada-370-db.c @@ -0,0 +1,156 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2014 Marvell + * + * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <linux/of.h> +#include <linux/platform_data/asoc-kirkwood.h> +#include "../codecs/cs42l51.h" + +static int a370db_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + unsigned int freq; + + switch (params_rate(params)) { + default: + case 44100: + freq = 11289600; + break; + case 48000: + freq = 12288000; + break; + case 96000: + freq = 24576000; + break; + } + + return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); +} + +static const struct snd_soc_ops a370db_ops = { + .hw_params = a370db_hw_params, +}; + +static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = { + SND_SOC_DAPM_HP("Out Jack", NULL), + SND_SOC_DAPM_LINE("In Jack", NULL), +}; + +static const struct snd_soc_dapm_route a370db_route[] = { + { "Out Jack", NULL, "HPL" }, + { "Out Jack", NULL, "HPR" }, + { "AIN1L", NULL, "In Jack" }, + { "AIN1L", NULL, "In Jack" }, +}; + +SND_SOC_DAILINK_DEFS(analog, + DAILINK_COMP_ARRAY(COMP_CPU("i2s")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(spdif_out, + DAILINK_COMP_ARRAY(COMP_CPU("spdif")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(spdif_in, + DAILINK_COMP_ARRAY(COMP_CPU("spdif")), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link a370db_dai[] = { +{ + .name = "CS42L51", + .stream_name = "analog", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + .ops = &a370db_ops, + SND_SOC_DAILINK_REG(analog), +}, +{ + .name = "S/PDIF out", + .stream_name = "spdif-out", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(spdif_out), +}, +{ + .name = "S/PDIF in", + .stream_name = "spdif-in", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + SND_SOC_DAILINK_REG(spdif_in), +}, +}; + +static struct snd_soc_card a370db = { + .name = "a370db", + .owner = THIS_MODULE, + .dai_link = a370db_dai, + .num_links = ARRAY_SIZE(a370db_dai), + .dapm_widgets = a370db_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets), + .dapm_routes = a370db_route, + .num_dapm_routes = ARRAY_SIZE(a370db_route), +}; + +static int a370db_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &a370db; + + card->dev = &pdev->dev; + + a370db_dai[0].cpus->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-controller", 0); + a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[0].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 0); + + a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node; + a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[1].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 1); + + a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node; + a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node; + + a370db_dai[2].codecs->of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 2); + + return devm_snd_soc_register_card(card->dev, card); +} + +static const struct of_device_id a370db_dt_ids[] __maybe_unused = { + { .compatible = "marvell,a370db-audio" }, + { }, +}; +MODULE_DEVICE_TABLE(of, a370db_dt_ids); + +static struct platform_driver a370db_driver = { + .driver = { + .name = "a370db-audio", + .of_match_table = of_match_ptr(a370db_dt_ids), + }, + .probe = a370db_probe, +}; + +module_platform_driver(a370db_driver); + +MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>"); +MODULE_DESCRIPTION("ALSA SoC a370db audio client"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:a370db-audio"); diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c new file mode 100644 index 0000000000..640cebd298 --- /dev/null +++ b/sound/soc/kirkwood/kirkwood-dma.c @@ -0,0 +1,262 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * kirkwood-dma.c + * + * (c) 2010 Arnaud Patard <apatard@mandriva.com> + * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/dma-mapping.h> +#include <linux/mbus.h> +#include <sound/soc.h> +#include "kirkwood.h" + +static struct kirkwood_dma_data *kirkwood_priv(struct snd_pcm_substream *subs) +{ + struct snd_soc_pcm_runtime *soc_runtime = subs->private_data; + return snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(soc_runtime, 0)); +} + +static const struct snd_pcm_hardware kirkwood_dma_snd_hw = { + .info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + .buffer_bytes_max = KIRKWOOD_SND_MAX_BUFFER_BYTES, + .period_bytes_min = KIRKWOOD_SND_MIN_PERIOD_BYTES, + .period_bytes_max = KIRKWOOD_SND_MAX_PERIOD_BYTES, + .periods_min = KIRKWOOD_SND_MIN_PERIODS, + .periods_max = KIRKWOOD_SND_MAX_PERIODS, + .fifo_size = 0, +}; + +static irqreturn_t kirkwood_dma_irq(int irq, void *dev_id) +{ + struct kirkwood_dma_data *priv = dev_id; + unsigned long mask, status, cause; + + mask = readl(priv->io + KIRKWOOD_INT_MASK); + status = readl(priv->io + KIRKWOOD_INT_CAUSE) & mask; + + cause = readl(priv->io + KIRKWOOD_ERR_CAUSE); + if (unlikely(cause)) { + printk(KERN_WARNING "%s: got err interrupt 0x%lx\n", + __func__, cause); + writel(cause, priv->io + KIRKWOOD_ERR_CAUSE); + } + + /* we've enabled only bytes interrupts ... */ + if (status & ~(KIRKWOOD_INT_CAUSE_PLAY_BYTES | \ + KIRKWOOD_INT_CAUSE_REC_BYTES)) { + printk(KERN_WARNING "%s: unexpected interrupt %lx\n", + __func__, status); + return IRQ_NONE; + } + + /* ack int */ + writel(status, priv->io + KIRKWOOD_INT_CAUSE); + + if (status & KIRKWOOD_INT_CAUSE_PLAY_BYTES) + snd_pcm_period_elapsed(priv->substream_play); + + if (status & KIRKWOOD_INT_CAUSE_REC_BYTES) + snd_pcm_period_elapsed(priv->substream_rec); + + return IRQ_HANDLED; +} + +static void +kirkwood_dma_conf_mbus_windows(void __iomem *base, int win, + unsigned long dma, + const struct mbus_dram_target_info *dram) +{ + int i; + + /* First disable and clear windows */ + writel(0, base + KIRKWOOD_AUDIO_WIN_CTRL_REG(win)); + writel(0, base + KIRKWOOD_AUDIO_WIN_BASE_REG(win)); + + /* try to find matching cs for current dma address */ + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = &dram->cs[i]; + if ((cs->base & 0xffff0000) < (dma & 0xffff0000)) { + writel(cs->base & 0xffff0000, + base + KIRKWOOD_AUDIO_WIN_BASE_REG(win)); + writel(((cs->size - 1) & 0xffff0000) | + (cs->mbus_attr << 8) | + (dram->mbus_dram_target_id << 4) | 1, + base + KIRKWOOD_AUDIO_WIN_CTRL_REG(win)); + } + } +} + +static int kirkwood_dma_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + int err; + struct snd_pcm_runtime *runtime = substream->runtime; + struct kirkwood_dma_data *priv = kirkwood_priv(substream); + + snd_soc_set_runtime_hwparams(substream, &kirkwood_dma_snd_hw); + + /* Ensure that all constraints linked to dma burst are fulfilled */ + err = snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES, + priv->burst * 2, + KIRKWOOD_AUDIO_BUF_MAX-1); + if (err < 0) + return err; + + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES, + priv->burst); + if (err < 0) + return err; + + err = snd_pcm_hw_constraint_step(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_BYTES, + priv->burst); + if (err < 0) + return err; + + if (!priv->substream_play && !priv->substream_rec) { + err = request_irq(priv->irq, kirkwood_dma_irq, IRQF_SHARED, + "kirkwood-i2s", priv); + if (err) + return err; + + /* + * Enable Error interrupts. We're only ack'ing them but + * it's useful for diagnostics + */ + writel((unsigned int)-1, priv->io + KIRKWOOD_ERR_MASK); + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (priv->substream_play) + return -EBUSY; + priv->substream_play = substream; + } else { + if (priv->substream_rec) + return -EBUSY; + priv->substream_rec = substream; + } + + return 0; +} + +static int kirkwood_dma_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct kirkwood_dma_data *priv = kirkwood_priv(substream); + + if (!priv) + return 0; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + priv->substream_play = NULL; + else + priv->substream_rec = NULL; + + if (!priv->substream_play && !priv->substream_rec) { + writel(0, priv->io + KIRKWOOD_ERR_MASK); + free_irq(priv->irq, priv); + } + + return 0; +} + +static int kirkwood_dma_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct kirkwood_dma_data *priv = kirkwood_priv(substream); + const struct mbus_dram_target_info *dram = mv_mbus_dram_info(); + unsigned long addr = substream->runtime->dma_addr; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + kirkwood_dma_conf_mbus_windows(priv->io, + KIRKWOOD_PLAYBACK_WIN, addr, dram); + else + kirkwood_dma_conf_mbus_windows(priv->io, + KIRKWOOD_RECORD_WIN, addr, dram); + return 0; +} + +static int kirkwood_dma_prepare(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct kirkwood_dma_data *priv = kirkwood_priv(substream); + unsigned long size, count; + + /* compute buffer size in term of "words" as requested in specs */ + size = frames_to_bytes(runtime, runtime->buffer_size); + size = (size>>2)-1; + count = snd_pcm_lib_period_bytes(substream); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + writel(count, priv->io + KIRKWOOD_PLAY_BYTE_INT_COUNT); + writel(runtime->dma_addr, priv->io + KIRKWOOD_PLAY_BUF_ADDR); + writel(size, priv->io + KIRKWOOD_PLAY_BUF_SIZE); + } else { + writel(count, priv->io + KIRKWOOD_REC_BYTE_INT_COUNT); + writel(runtime->dma_addr, priv->io + KIRKWOOD_REC_BUF_ADDR); + writel(size, priv->io + KIRKWOOD_REC_BUF_SIZE); + } + + + return 0; +} + +static snd_pcm_uframes_t kirkwood_dma_pointer( + struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct kirkwood_dma_data *priv = kirkwood_priv(substream); + snd_pcm_uframes_t count; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + count = bytes_to_frames(substream->runtime, + readl(priv->io + KIRKWOOD_PLAY_BYTE_COUNT)); + else + count = bytes_to_frames(substream->runtime, + readl(priv->io + KIRKWOOD_REC_BYTE_COUNT)); + + return count; +} + +static int kirkwood_dma_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + size_t size = kirkwood_dma_snd_hw.buffer_bytes_max; + struct snd_card *card = rtd->card->snd_card; + int ret; + + ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; + + snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV, + card->dev, size, size); + + return 0; +} + +const struct snd_soc_component_driver kirkwood_soc_component = { + .name = DRV_NAME, + .open = kirkwood_dma_open, + .close = kirkwood_dma_close, + .hw_params = kirkwood_dma_hw_params, + .prepare = kirkwood_dma_prepare, + .pointer = kirkwood_dma_pointer, + .pcm_construct = kirkwood_dma_new, +}; diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c new file mode 100644 index 0000000000..d1eb90310a --- /dev/null +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -0,0 +1,775 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * kirkwood-i2s.c + * + * (c) 2010 Arnaud Patard <apatard@mandriva.com> + * (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/mbus.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <linux/platform_data/asoc-kirkwood.h> +#include <linux/of.h> + +#include "kirkwood.h" + +#define KIRKWOOD_I2S_FORMATS \ + (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +#define KIRKWOOD_SPDIF_FORMATS \ + (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE) + +/* These registers are relative to the second register region - + * audio pll configuration. + */ +#define A38X_PLL_CONF_REG0 0x0 +#define A38X_PLL_FB_CLK_DIV_OFFSET 10 +#define A38X_PLL_FB_CLK_DIV_MASK 0x7fc00 +#define A38X_PLL_CONF_REG1 0x4 +#define A38X_PLL_FREQ_OFFSET_MASK 0xffff +#define A38X_PLL_FREQ_OFFSET_VALID BIT(16) +#define A38X_PLL_SW_RESET BIT(31) +#define A38X_PLL_CONF_REG2 0x8 +#define A38X_PLL_AUDIO_POSTDIV_MASK 0x7f + +/* Bit below belongs to SoC control register corresponding to the third + * register region. + */ +#define A38X_SPDIF_MODE_ENABLE BIT(27) + +static int armada_38x_i2s_init_quirk(struct platform_device *pdev, + struct kirkwood_dma_data *priv, + struct snd_soc_dai_driver *dai_drv) +{ + struct device_node *np = pdev->dev.of_node; + u32 reg_val; + int i; + + priv->pll_config = devm_platform_ioremap_resource_byname(pdev, "pll_regs"); + if (IS_ERR(priv->pll_config)) + return -ENOMEM; + + priv->soc_control = devm_platform_ioremap_resource_byname(pdev, "soc_ctrl"); + if (IS_ERR(priv->soc_control)) + return -ENOMEM; + + /* Select one of exceptive modes: I2S or S/PDIF */ + reg_val = readl(priv->soc_control); + if (of_property_read_bool(np, "spdif-mode")) { + reg_val |= A38X_SPDIF_MODE_ENABLE; + dev_info(&pdev->dev, "using S/PDIF mode\n"); + } else { + reg_val &= ~A38X_SPDIF_MODE_ENABLE; + dev_info(&pdev->dev, "using I2S mode\n"); + } + writel(reg_val, priv->soc_control); + + /* Update available rates of mclk's fs */ + for (i = 0; i < 2; i++) { + dai_drv[i].playback.rates |= SNDRV_PCM_RATE_192000; + dai_drv[i].capture.rates |= SNDRV_PCM_RATE_192000; + } + + return 0; +} + +static inline void armada_38x_set_pll(void __iomem *base, unsigned long rate) +{ + u32 reg_val; + u16 freq_offset = 0x22b0; + u8 audio_postdiv, fb_clk_div = 0x1d; + + /* Set frequency offset value to not valid and enable PLL reset */ + reg_val = readl(base + A38X_PLL_CONF_REG1); + reg_val &= ~A38X_PLL_FREQ_OFFSET_VALID; + reg_val &= ~A38X_PLL_SW_RESET; + writel(reg_val, base + A38X_PLL_CONF_REG1); + + udelay(1); + + /* Update PLL parameters */ + switch (rate) { + default: + case 44100: + freq_offset = 0x735; + fb_clk_div = 0x1b; + audio_postdiv = 0xc; + break; + case 48000: + audio_postdiv = 0xc; + break; + case 96000: + audio_postdiv = 0x6; + break; + case 192000: + audio_postdiv = 0x3; + break; + } + + reg_val = readl(base + A38X_PLL_CONF_REG0); + reg_val &= ~A38X_PLL_FB_CLK_DIV_MASK; + reg_val |= (fb_clk_div << A38X_PLL_FB_CLK_DIV_OFFSET); + writel(reg_val, base + A38X_PLL_CONF_REG0); + + reg_val = readl(base + A38X_PLL_CONF_REG2); + reg_val &= ~A38X_PLL_AUDIO_POSTDIV_MASK; + reg_val |= audio_postdiv; + writel(reg_val, base + A38X_PLL_CONF_REG2); + + reg_val = readl(base + A38X_PLL_CONF_REG1); + reg_val &= ~A38X_PLL_FREQ_OFFSET_MASK; + reg_val |= freq_offset; + writel(reg_val, base + A38X_PLL_CONF_REG1); + + udelay(1); + + /* Disable reset */ + reg_val |= A38X_PLL_SW_RESET; + writel(reg_val, base + A38X_PLL_CONF_REG1); + + /* Wait 50us for PLL to lock */ + udelay(50); + + /* Restore frequency offset value validity */ + reg_val |= A38X_PLL_FREQ_OFFSET_VALID; + writel(reg_val, base + A38X_PLL_CONF_REG1); +} + +static int kirkwood_i2s_set_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(cpu_dai); + unsigned long mask; + unsigned long value; + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_RIGHT_J: + mask = KIRKWOOD_I2S_CTL_RJ; + break; + case SND_SOC_DAIFMT_LEFT_J: + mask = KIRKWOOD_I2S_CTL_LJ; + break; + case SND_SOC_DAIFMT_I2S: + mask = KIRKWOOD_I2S_CTL_I2S; + break; + default: + return -EINVAL; + } + + /* + * Set same format for playback and record + * This avoids some troubles. + */ + value = readl(priv->io+KIRKWOOD_I2S_PLAYCTL); + value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; + value |= mask; + writel(value, priv->io+KIRKWOOD_I2S_PLAYCTL); + + value = readl(priv->io+KIRKWOOD_I2S_RECCTL); + value &= ~KIRKWOOD_I2S_CTL_JUST_MASK; + value |= mask; + writel(value, priv->io+KIRKWOOD_I2S_RECCTL); + + return 0; +} + +static inline void kirkwood_set_dco(void __iomem *io, unsigned long rate) +{ + unsigned long value; + + value = KIRKWOOD_DCO_CTL_OFFSET_0; + switch (rate) { + default: + case 44100: + value |= KIRKWOOD_DCO_CTL_FREQ_11; + break; + case 48000: + value |= KIRKWOOD_DCO_CTL_FREQ_12; + break; + case 96000: + value |= KIRKWOOD_DCO_CTL_FREQ_24; + break; + } + writel(value, io + KIRKWOOD_DCO_CTL); + + /* wait for dco locked */ + do { + cpu_relax(); + value = readl(io + KIRKWOOD_DCO_SPCR_STATUS); + value &= KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK; + } while (value == 0); +} + +static void kirkwood_set_rate(struct snd_soc_dai *dai, + struct kirkwood_dma_data *priv, unsigned long rate) +{ + uint32_t clks_ctrl; + + if (IS_ERR(priv->extclk)) { + /* use internal dco for the supported rates + * defined in kirkwood_i2s_dai */ + dev_dbg(dai->dev, "%s: dco set rate = %lu\n", + __func__, rate); + if (priv->pll_config) + armada_38x_set_pll(priv->pll_config, rate); + else + kirkwood_set_dco(priv->io, rate); + + clks_ctrl = KIRKWOOD_MCLK_SOURCE_DCO; + } else { + /* use the external clock for the other rates + * defined in kirkwood_i2s_dai_extclk */ + dev_dbg(dai->dev, "%s: extclk set rate = %lu -> %lu\n", + __func__, rate, 256 * rate); + clk_set_rate(priv->extclk, 256 * rate); + + clks_ctrl = KIRKWOOD_MCLK_SOURCE_EXTCLK; + } + writel(clks_ctrl, priv->io + KIRKWOOD_CLOCKS_CTRL); +} + +static int kirkwood_i2s_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); + + snd_soc_dai_set_dma_data(dai, substream, priv); + return 0; +} + +static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); + uint32_t ctl_play, ctl_rec; + unsigned int i2s_reg; + unsigned long i2s_value; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + i2s_reg = KIRKWOOD_I2S_PLAYCTL; + } else { + i2s_reg = KIRKWOOD_I2S_RECCTL; + } + + kirkwood_set_rate(dai, priv, params_rate(params)); + + i2s_value = readl(priv->io+i2s_reg); + i2s_value &= ~KIRKWOOD_I2S_CTL_SIZE_MASK; + + /* + * Size settings in play/rec i2s control regs and play/rec control + * regs must be the same. + */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + i2s_value |= KIRKWOOD_I2S_CTL_SIZE_16; + ctl_play = KIRKWOOD_PLAYCTL_SIZE_16_C | + KIRKWOOD_PLAYCTL_I2S_EN | + KIRKWOOD_PLAYCTL_SPDIF_EN; + ctl_rec = KIRKWOOD_RECCTL_SIZE_16_C | + KIRKWOOD_RECCTL_I2S_EN | + KIRKWOOD_RECCTL_SPDIF_EN; + break; + /* + * doesn't work... S20_3LE != kirkwood 20bit format ? + * + case SNDRV_PCM_FORMAT_S20_3LE: + i2s_value |= KIRKWOOD_I2S_CTL_SIZE_20; + ctl_play = KIRKWOOD_PLAYCTL_SIZE_20 | + KIRKWOOD_PLAYCTL_I2S_EN; + ctl_rec = KIRKWOOD_RECCTL_SIZE_20 | + KIRKWOOD_RECCTL_I2S_EN; + break; + */ + case SNDRV_PCM_FORMAT_S24_LE: + i2s_value |= KIRKWOOD_I2S_CTL_SIZE_24; + ctl_play = KIRKWOOD_PLAYCTL_SIZE_24 | + KIRKWOOD_PLAYCTL_I2S_EN | + KIRKWOOD_PLAYCTL_SPDIF_EN; + ctl_rec = KIRKWOOD_RECCTL_SIZE_24 | + KIRKWOOD_RECCTL_I2S_EN | + KIRKWOOD_RECCTL_SPDIF_EN; + break; + case SNDRV_PCM_FORMAT_S32_LE: + i2s_value |= KIRKWOOD_I2S_CTL_SIZE_32; + ctl_play = KIRKWOOD_PLAYCTL_SIZE_32 | + KIRKWOOD_PLAYCTL_I2S_EN; + ctl_rec = KIRKWOOD_RECCTL_SIZE_32 | + KIRKWOOD_RECCTL_I2S_EN; + break; + default: + return -EINVAL; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (params_channels(params) == 1) + ctl_play |= KIRKWOOD_PLAYCTL_MONO_BOTH; + else + ctl_play |= KIRKWOOD_PLAYCTL_MONO_OFF; + + priv->ctl_play &= ~(KIRKWOOD_PLAYCTL_MONO_MASK | + KIRKWOOD_PLAYCTL_ENABLE_MASK | + KIRKWOOD_PLAYCTL_SIZE_MASK); + priv->ctl_play |= ctl_play; + } else { + priv->ctl_rec &= ~(KIRKWOOD_RECCTL_ENABLE_MASK | + KIRKWOOD_RECCTL_SIZE_MASK); + priv->ctl_rec |= ctl_rec; + } + + writel(i2s_value, priv->io+i2s_reg); + + return 0; +} + +static unsigned kirkwood_i2s_play_mute(unsigned ctl) +{ + if (!(ctl & KIRKWOOD_PLAYCTL_I2S_EN)) + ctl |= KIRKWOOD_PLAYCTL_I2S_MUTE; + if (!(ctl & KIRKWOOD_PLAYCTL_SPDIF_EN)) + ctl |= KIRKWOOD_PLAYCTL_SPDIF_MUTE; + return ctl; +} + +static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); + uint32_t ctl, value; + + ctl = readl(priv->io + KIRKWOOD_PLAYCTL); + if ((ctl & KIRKWOOD_PLAYCTL_ENABLE_MASK) == 0) { + unsigned timeout = 5000; + /* + * The Armada510 spec says that if we enter pause mode, the + * busy bit must be read back as clear _twice_. Make sure + * we respect that otherwise we get DMA underruns. + */ + do { + value = ctl; + ctl = readl(priv->io + KIRKWOOD_PLAYCTL); + if (!((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY)) + break; + udelay(1); + } while (timeout--); + + if ((ctl | value) & KIRKWOOD_PLAYCTL_PLAY_BUSY) + dev_notice(dai->dev, "timed out waiting for busy to deassert: %08x\n", + ctl); + } + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* configure */ + ctl = priv->ctl_play; + if (dai->id == 0) + ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN; /* i2s */ + else + ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN; /* spdif */ + ctl = kirkwood_i2s_play_mute(ctl); + value = ctl & ~KIRKWOOD_PLAYCTL_ENABLE_MASK; + writel(value, priv->io + KIRKWOOD_PLAYCTL); + + /* enable interrupts */ + if (!runtime->no_period_wakeup) { + value = readl(priv->io + KIRKWOOD_INT_MASK); + value |= KIRKWOOD_INT_CAUSE_PLAY_BYTES; + writel(value, priv->io + KIRKWOOD_INT_MASK); + } + + /* enable playback */ + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); + break; + + case SNDRV_PCM_TRIGGER_STOP: + /* stop audio, disable interrupts */ + ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | + KIRKWOOD_PLAYCTL_SPDIF_MUTE; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); + + value = readl(priv->io + KIRKWOOD_INT_MASK); + value &= ~KIRKWOOD_INT_CAUSE_PLAY_BYTES; + writel(value, priv->io + KIRKWOOD_INT_MASK); + + /* disable all playbacks */ + ctl &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | + KIRKWOOD_PLAYCTL_SPDIF_MUTE; + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); + break; + + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE | + KIRKWOOD_PLAYCTL_SPDIF_MUTE); + ctl = kirkwood_i2s_play_mute(ctl); + writel(ctl, priv->io + KIRKWOOD_PLAYCTL); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai); + uint32_t ctl, value; + + value = readl(priv->io + KIRKWOOD_RECCTL); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* configure */ + ctl = priv->ctl_rec; + if (dai->id == 0) + ctl &= ~KIRKWOOD_RECCTL_SPDIF_EN; /* i2s */ + else + ctl &= ~KIRKWOOD_RECCTL_I2S_EN; /* spdif */ + + value = ctl & ~KIRKWOOD_RECCTL_ENABLE_MASK; + writel(value, priv->io + KIRKWOOD_RECCTL); + + /* enable interrupts */ + value = readl(priv->io + KIRKWOOD_INT_MASK); + value |= KIRKWOOD_INT_CAUSE_REC_BYTES; + writel(value, priv->io + KIRKWOOD_INT_MASK); + + /* enable record */ + writel(ctl, priv->io + KIRKWOOD_RECCTL); + break; + + case SNDRV_PCM_TRIGGER_STOP: + /* stop audio, disable interrupts */ + value = readl(priv->io + KIRKWOOD_RECCTL); + value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; + writel(value, priv->io + KIRKWOOD_RECCTL); + + value = readl(priv->io + KIRKWOOD_INT_MASK); + value &= ~KIRKWOOD_INT_CAUSE_REC_BYTES; + writel(value, priv->io + KIRKWOOD_INT_MASK); + + /* disable all records */ + value = readl(priv->io + KIRKWOOD_RECCTL); + value &= ~KIRKWOOD_RECCTL_ENABLE_MASK; + writel(value, priv->io + KIRKWOOD_RECCTL); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + case SNDRV_PCM_TRIGGER_SUSPEND: + value = readl(priv->io + KIRKWOOD_RECCTL); + value |= KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE; + writel(value, priv->io + KIRKWOOD_RECCTL); + break; + + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + value = readl(priv->io + KIRKWOOD_RECCTL); + value &= ~(KIRKWOOD_RECCTL_PAUSE | KIRKWOOD_RECCTL_MUTE); + writel(value, priv->io + KIRKWOOD_RECCTL); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int kirkwood_i2s_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return kirkwood_i2s_play_trigger(substream, cmd, dai); + else + return kirkwood_i2s_rec_trigger(substream, cmd, dai); + + return 0; +} + +static int kirkwood_i2s_init(struct kirkwood_dma_data *priv) +{ + unsigned long value; + unsigned int reg_data; + + /* put system in a "safe" state : */ + /* disable audio interrupts */ + writel(0xffffffff, priv->io + KIRKWOOD_INT_CAUSE); + writel(0, priv->io + KIRKWOOD_INT_MASK); + + reg_data = readl(priv->io + 0x1200); + reg_data &= (~(0x333FF8)); + reg_data |= 0x111D18; + writel(reg_data, priv->io + 0x1200); + + msleep(500); + + reg_data = readl(priv->io + 0x1200); + reg_data &= (~(0x333FF8)); + reg_data |= 0x111D18; + writel(reg_data, priv->io + 0x1200); + + /* disable playback/record */ + value = readl(priv->io + KIRKWOOD_PLAYCTL); + value &= ~KIRKWOOD_PLAYCTL_ENABLE_MASK; + writel(value, priv->io + KIRKWOOD_PLAYCTL); + + value = readl(priv->io + KIRKWOOD_RECCTL); + value &= ~KIRKWOOD_RECCTL_ENABLE_MASK; + writel(value, priv->io + KIRKWOOD_RECCTL); + + return 0; + +} + +static const struct snd_soc_dai_ops kirkwood_i2s_dai_ops = { + .startup = kirkwood_i2s_startup, + .trigger = kirkwood_i2s_trigger, + .hw_params = kirkwood_i2s_hw_params, + .set_fmt = kirkwood_i2s_set_fmt, +}; + +static struct snd_soc_dai_driver kirkwood_i2s_dai[2] = { + { + .name = "i2s", + .id = 0, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .formats = KIRKWOOD_I2S_FORMATS, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .formats = KIRKWOOD_I2S_FORMATS, + }, + .ops = &kirkwood_i2s_dai_ops, + }, + { + .name = "spdif", + .id = 1, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .formats = KIRKWOOD_SPDIF_FORMATS, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .formats = KIRKWOOD_SPDIF_FORMATS, + }, + .ops = &kirkwood_i2s_dai_ops, + }, +}; + +static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = { + { + .name = "i2s", + .id = 0, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = KIRKWOOD_I2S_FORMATS, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = KIRKWOOD_I2S_FORMATS, + }, + .ops = &kirkwood_i2s_dai_ops, + }, + { + .name = "spdif", + .id = 1, + .playback = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = KIRKWOOD_SPDIF_FORMATS, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 5512, + .rate_max = 192000, + .formats = KIRKWOOD_SPDIF_FORMATS, + }, + .ops = &kirkwood_i2s_dai_ops, + }, +}; + +static int kirkwood_i2s_dev_probe(struct platform_device *pdev) +{ + struct kirkwood_asoc_platform_data *data = pdev->dev.platform_data; + struct snd_soc_dai_driver *soc_dai = kirkwood_i2s_dai; + struct kirkwood_dma_data *priv; + struct device_node *np = pdev->dev.of_node; + int err; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + dev_set_drvdata(&pdev->dev, priv); + + if (of_device_is_compatible(np, "marvell,armada-380-audio")) + priv->io = devm_platform_ioremap_resource_byname(pdev, "i2s_regs"); + else + priv->io = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(priv->io)) + return PTR_ERR(priv->io); + + priv->irq = platform_get_irq(pdev, 0); + if (priv->irq < 0) + return priv->irq; + + if (of_device_is_compatible(np, "marvell,armada-380-audio")) { + err = armada_38x_i2s_init_quirk(pdev, priv, soc_dai); + if (err < 0) + return err; + /* Set initial pll frequency */ + armada_38x_set_pll(priv->pll_config, 44100); + } + + if (np) { + priv->burst = 128; /* might be 32 or 128 */ + } else if (data) { + priv->burst = data->burst; + } else { + dev_err(&pdev->dev, "no DT nor platform data ?!\n"); + return -EINVAL; + } + + priv->clk = devm_clk_get(&pdev->dev, np ? "internal" : NULL); + if (IS_ERR(priv->clk)) { + dev_err(&pdev->dev, "no clock\n"); + return PTR_ERR(priv->clk); + } + + priv->extclk = devm_clk_get(&pdev->dev, "extclk"); + if (IS_ERR(priv->extclk)) { + if (PTR_ERR(priv->extclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + } else { + if (clk_is_match(priv->extclk, priv->clk)) { + devm_clk_put(&pdev->dev, priv->extclk); + priv->extclk = ERR_PTR(-EINVAL); + } else { + dev_info(&pdev->dev, "found external clock\n"); + clk_prepare_enable(priv->extclk); + soc_dai = kirkwood_i2s_dai_extclk; + } + } + + err = clk_prepare_enable(priv->clk); + if (err < 0) + return err; + + /* Some sensible defaults - this reflects the powerup values */ + priv->ctl_play = KIRKWOOD_PLAYCTL_SIZE_24; + priv->ctl_rec = KIRKWOOD_RECCTL_SIZE_24; + + /* Select the burst size */ + if (priv->burst == 32) { + priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_32; + priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_32; + } else { + priv->ctl_play |= KIRKWOOD_PLAYCTL_BURST_128; + priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_128; + } + + err = snd_soc_register_component(&pdev->dev, &kirkwood_soc_component, + soc_dai, 2); + if (err) { + dev_err(&pdev->dev, "snd_soc_register_component failed\n"); + goto err_component; + } + + kirkwood_i2s_init(priv); + + return 0; + + err_component: + if (!IS_ERR(priv->extclk)) + clk_disable_unprepare(priv->extclk); + clk_disable_unprepare(priv->clk); + + return err; +} + +static void kirkwood_i2s_dev_remove(struct platform_device *pdev) +{ + struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev); + + snd_soc_unregister_component(&pdev->dev); + if (!IS_ERR(priv->extclk)) + clk_disable_unprepare(priv->extclk); + clk_disable_unprepare(priv->clk); +} + +#ifdef CONFIG_OF +static const struct of_device_id mvebu_audio_of_match[] = { + { .compatible = "marvell,kirkwood-audio" }, + { .compatible = "marvell,dove-audio" }, + { .compatible = "marvell,armada370-audio" }, + { .compatible = "marvell,armada-380-audio" }, + { } +}; +MODULE_DEVICE_TABLE(of, mvebu_audio_of_match); +#endif + +static struct platform_driver kirkwood_i2s_driver = { + .probe = kirkwood_i2s_dev_probe, + .remove_new = kirkwood_i2s_dev_remove, + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(mvebu_audio_of_match), + }, +}; + +module_platform_driver(kirkwood_i2s_driver); + +/* Module information */ +MODULE_AUTHOR("Arnaud Patard, <arnaud.patard@rtp-net.org>"); +MODULE_DESCRIPTION("Kirkwood I2S SoC Interface"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mvebu-audio"); diff --git a/sound/soc/kirkwood/kirkwood.h b/sound/soc/kirkwood/kirkwood.h new file mode 100644 index 0000000000..79bb9aa7f0 --- /dev/null +++ b/sound/soc/kirkwood/kirkwood.h @@ -0,0 +1,148 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * kirkwood.h + * + * (c) 2010 Arnaud Patard <apatard@mandriva.com> + */ + +#ifndef _KIRKWOOD_AUDIO_H +#define _KIRKWOOD_AUDIO_H + +#define DRV_NAME "mvebu-audio" + +#define KIRKWOOD_RECORD_WIN 0 +#define KIRKWOOD_PLAYBACK_WIN 1 +#define KIRKWOOD_MAX_AUDIO_WIN 2 + +#define KIRKWOOD_AUDIO_WIN_BASE_REG(win) (0xA00 + ((win)<<3)) +#define KIRKWOOD_AUDIO_WIN_CTRL_REG(win) (0xA04 + ((win)<<3)) + + +#define KIRKWOOD_RECCTL 0x1000 +#define KIRKWOOD_RECCTL_SPDIF_EN (1<<11) +#define KIRKWOOD_RECCTL_I2S_EN (1<<10) +#define KIRKWOOD_RECCTL_PAUSE (1<<9) +#define KIRKWOOD_RECCTL_MUTE (1<<8) +#define KIRKWOOD_RECCTL_BURST_MASK (3<<5) +#define KIRKWOOD_RECCTL_BURST_128 (2<<5) +#define KIRKWOOD_RECCTL_BURST_32 (1<<5) +#define KIRKWOOD_RECCTL_MONO (1<<4) +#define KIRKWOOD_RECCTL_MONO_CHAN_RIGHT (1<<3) +#define KIRKWOOD_RECCTL_MONO_CHAN_LEFT (0<<3) +#define KIRKWOOD_RECCTL_SIZE_MASK (7<<0) +#define KIRKWOOD_RECCTL_SIZE_16 (7<<0) +#define KIRKWOOD_RECCTL_SIZE_16_C (3<<0) +#define KIRKWOOD_RECCTL_SIZE_20 (2<<0) +#define KIRKWOOD_RECCTL_SIZE_24 (1<<0) +#define KIRKWOOD_RECCTL_SIZE_32 (0<<0) + +#define KIRKWOOD_RECCTL_ENABLE_MASK (KIRKWOOD_RECCTL_SPDIF_EN | \ + KIRKWOOD_RECCTL_I2S_EN) + +#define KIRKWOOD_REC_BUF_ADDR 0x1004 +#define KIRKWOOD_REC_BUF_SIZE 0x1008 +#define KIRKWOOD_REC_BYTE_COUNT 0x100C + +#define KIRKWOOD_PLAYCTL 0x1100 +#define KIRKWOOD_PLAYCTL_PLAY_BUSY (1<<16) +#define KIRKWOOD_PLAYCTL_BURST_MASK (3<<11) +#define KIRKWOOD_PLAYCTL_BURST_128 (2<<11) +#define KIRKWOOD_PLAYCTL_BURST_32 (1<<11) +#define KIRKWOOD_PLAYCTL_PAUSE (1<<9) +#define KIRKWOOD_PLAYCTL_SPDIF_MUTE (1<<8) +#define KIRKWOOD_PLAYCTL_MONO_MASK (3<<5) +#define KIRKWOOD_PLAYCTL_MONO_BOTH (3<<5) +#define KIRKWOOD_PLAYCTL_MONO_OFF (0<<5) +#define KIRKWOOD_PLAYCTL_I2S_MUTE (1<<7) +#define KIRKWOOD_PLAYCTL_SPDIF_EN (1<<4) +#define KIRKWOOD_PLAYCTL_I2S_EN (1<<3) +#define KIRKWOOD_PLAYCTL_SIZE_MASK (7<<0) +#define KIRKWOOD_PLAYCTL_SIZE_16 (7<<0) +#define KIRKWOOD_PLAYCTL_SIZE_16_C (3<<0) +#define KIRKWOOD_PLAYCTL_SIZE_20 (2<<0) +#define KIRKWOOD_PLAYCTL_SIZE_24 (1<<0) +#define KIRKWOOD_PLAYCTL_SIZE_32 (0<<0) + +#define KIRKWOOD_PLAYCTL_ENABLE_MASK (KIRKWOOD_PLAYCTL_SPDIF_EN | \ + KIRKWOOD_PLAYCTL_I2S_EN) + +#define KIRKWOOD_PLAY_BUF_ADDR 0x1104 +#define KIRKWOOD_PLAY_BUF_SIZE 0x1108 +#define KIRKWOOD_PLAY_BYTE_COUNT 0x110C + +#define KIRKWOOD_DCO_CTL 0x1204 +#define KIRKWOOD_DCO_CTL_OFFSET_MASK (0xFFF<<2) +#define KIRKWOOD_DCO_CTL_OFFSET_0 (0x800<<2) +#define KIRKWOOD_DCO_CTL_FREQ_MASK (3<<0) +#define KIRKWOOD_DCO_CTL_FREQ_11 (0<<0) +#define KIRKWOOD_DCO_CTL_FREQ_12 (1<<0) +#define KIRKWOOD_DCO_CTL_FREQ_24 (2<<0) + +#define KIRKWOOD_DCO_SPCR_STATUS 0x120c +#define KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK (1<<16) + +#define KIRKWOOD_CLOCKS_CTRL 0x1230 +#define KIRKWOOD_MCLK_SOURCE_MASK (3<<0) +#define KIRKWOOD_MCLK_SOURCE_DCO (0<<0) +#define KIRKWOOD_MCLK_SOURCE_EXTCLK (3<<0) + +#define KIRKWOOD_ERR_CAUSE 0x1300 +#define KIRKWOOD_ERR_MASK 0x1304 + +#define KIRKWOOD_INT_CAUSE 0x1308 +#define KIRKWOOD_INT_MASK 0x130C +#define KIRKWOOD_INT_CAUSE_PLAY_BYTES (1<<14) +#define KIRKWOOD_INT_CAUSE_REC_BYTES (1<<13) +#define KIRKWOOD_INT_CAUSE_DMA_PLAY_END (1<<7) +#define KIRKWOOD_INT_CAUSE_DMA_PLAY_3Q (1<<6) +#define KIRKWOOD_INT_CAUSE_DMA_PLAY_HALF (1<<5) +#define KIRKWOOD_INT_CAUSE_DMA_PLAY_1Q (1<<4) +#define KIRKWOOD_INT_CAUSE_DMA_REC_END (1<<3) +#define KIRKWOOD_INT_CAUSE_DMA_REC_3Q (1<<2) +#define KIRKWOOD_INT_CAUSE_DMA_REC_HALF (1<<1) +#define KIRKWOOD_INT_CAUSE_DMA_REC_1Q (1<<0) + +#define KIRKWOOD_REC_BYTE_INT_COUNT 0x1310 +#define KIRKWOOD_PLAY_BYTE_INT_COUNT 0x1314 +#define KIRKWOOD_BYTE_INT_COUNT_MASK 0xffffff + +#define KIRKWOOD_I2S_PLAYCTL 0x2508 +#define KIRKWOOD_I2S_RECCTL 0x2408 +#define KIRKWOOD_I2S_CTL_JUST_MASK (0xf<<26) +#define KIRKWOOD_I2S_CTL_LJ (0<<26) +#define KIRKWOOD_I2S_CTL_I2S (5<<26) +#define KIRKWOOD_I2S_CTL_RJ (8<<26) +#define KIRKWOOD_I2S_CTL_SIZE_MASK (3<<30) +#define KIRKWOOD_I2S_CTL_SIZE_16 (3<<30) +#define KIRKWOOD_I2S_CTL_SIZE_20 (2<<30) +#define KIRKWOOD_I2S_CTL_SIZE_24 (1<<30) +#define KIRKWOOD_I2S_CTL_SIZE_32 (0<<30) + +#define KIRKWOOD_AUDIO_BUF_MAX (16*1024*1024) + +/* Theses values come from the marvell alsa driver */ +/* need to find where they come from */ +#define KIRKWOOD_SND_MIN_PERIODS 2 +#define KIRKWOOD_SND_MAX_PERIODS 16 +#define KIRKWOOD_SND_MIN_PERIOD_BYTES 256 +#define KIRKWOOD_SND_MAX_PERIOD_BYTES 0x8000 +#define KIRKWOOD_SND_MAX_BUFFER_BYTES (KIRKWOOD_SND_MAX_PERIOD_BYTES \ + * KIRKWOOD_SND_MAX_PERIODS) + +struct kirkwood_dma_data { + void __iomem *io; + void __iomem *pll_config; + void __iomem *soc_control; + struct clk *clk; + struct clk *extclk; + uint32_t ctl_play; + uint32_t ctl_rec; + struct snd_pcm_substream *substream_play; + struct snd_pcm_substream *substream_rec; + int irq; + int burst; +}; + +extern const struct snd_soc_component_driver kirkwood_soc_component; + +#endif |