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-rw-r--r--sound/soc/atmel/Kconfig40
-rw-r--r--sound/soc/atmel/Makefile8
-rw-r--r--sound/soc/atmel/atmel-pcm-dma.c144
-rw-r--r--sound/soc/atmel/atmel-pcm-pdc.c337
-rw-r--r--sound/soc/atmel/atmel-pcm.c412
-rw-r--r--sound/soc/atmel/atmel-pcm.h36
-rw-r--r--sound/soc/atmel/atmel_ssc_dai.c303
-rw-r--r--sound/soc/atmel/atmel_ssc_dai.h3
-rw-r--r--sound/soc/atmel/atmel_wm8904.c246
-rw-r--r--sound/soc/atmel/sam9g20_wm8731.c131
-rw-r--r--sound/soc/atmel/sam9x5_wm8731.c208
-rw-r--r--sound/soc/atmel/snd-soc-afeb9260.c49
12 files changed, 1282 insertions, 635 deletions
diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
index 72b09cfd3dc..27e3fc4a536 100644
--- a/sound/soc/atmel/Kconfig
+++ b/sound/soc/atmel/Kconfig
@@ -1,11 +1,20 @@
config SND_ATMEL_SOC
tristate "SoC Audio for the Atmel System-on-Chip"
- depends on ARCH_AT91
+ depends on HAS_IOMEM
help
Say Y or M if you want to add support for codecs attached to
the ATMEL SSC interface. You will also need
to select the audio interfaces to support below.
+config SND_ATMEL_SOC_PDC
+ tristate
+ depends on SND_ATMEL_SOC
+
+config SND_ATMEL_SOC_DMA
+ tristate
+ depends on SND_ATMEL_SOC
+ select SND_SOC_GENERIC_DMAENGINE_PCM
+
config SND_ATMEL_SOC_SSC
tristate
depends on SND_ATMEL_SOC
@@ -16,18 +25,39 @@ config SND_ATMEL_SOC_SSC
config SND_AT91_SOC_SAM9G20_WM8731
tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
- depends on ATMEL_SSC && ARCH_AT91SAM9G20 && SND_ATMEL_SOC && \
- AT91_PROGRAMMABLE_CLOCKS
+ depends on ARCH_AT91 && ATMEL_SSC && SND_ATMEL_SOC
+ select SND_ATMEL_SOC_PDC
select SND_ATMEL_SOC_SSC
select SND_SOC_WM8731
help
Say Y if you want to add support for SoC audio on WM8731-based
AT91sam9g20 evaluation board.
+config SND_ATMEL_SOC_WM8904
+ tristate "Atmel ASoC driver for boards using WM8904 codec"
+ depends on ARCH_AT91 && ATMEL_SSC && SND_ATMEL_SOC && I2C
+ select SND_ATMEL_SOC_SSC
+ select SND_ATMEL_SOC_DMA
+ select SND_SOC_WM8904
+ help
+ Say Y if you want to add support for Atmel ASoC driver for boards using
+ WM8904 codec.
+
+config SND_AT91_SOC_SAM9X5_WM8731
+ tristate "SoC Audio support for WM8731-based at91sam9x5 board"
+ depends on ATMEL_SSC && SND_ATMEL_SOC && SOC_AT91SAM9X5
+ select SND_ATMEL_SOC_SSC
+ select SND_ATMEL_SOC_DMA
+ select SND_SOC_WM8731
+ help
+ Say Y if you want to add support for audio SoC on an
+ at91sam9x5 based board that is using WM8731 codec.
+
config SND_AT91_SOC_AFEB9260
tristate "SoC Audio support for AFEB9260 board"
- depends on ATMEL_SSC && ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
+ depends on ARCH_AT91 && ATMEL_SSC && ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
+ select SND_ATMEL_SOC_PDC
select SND_ATMEL_SOC_SSC
- select SND_SOC_TLV320AIC23
+ select SND_SOC_TLV320AIC23_I2C
help
Say Y here to support sound on AFEB9260 board.
diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
index a5c0bf19da7..5baabc8bde3 100644
--- a/sound/soc/atmel/Makefile
+++ b/sound/soc/atmel/Makefile
@@ -1,12 +1,20 @@
# AT91 Platform Support
snd-soc-atmel-pcm-objs := atmel-pcm.o
+snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
+snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
obj-$(CONFIG_SND_ATMEL_SOC) += snd-soc-atmel-pcm.o
+obj-$(CONFIG_SND_ATMEL_SOC_PDC) += snd-soc-atmel-pcm-pdc.o
+obj-$(CONFIG_SND_ATMEL_SOC_DMA) += snd-soc-atmel-pcm-dma.o
obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
# AT91 Machine Support
snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o
+snd-atmel-soc-wm8904-objs := atmel_wm8904.o
+snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o
obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
+obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o
+obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o
obj-$(CONFIG_SND_AT91_SOC_AFEB9260) += snd-soc-afeb9260.o
diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c
new file mode 100644
index 00000000000..b79a2a86451
--- /dev/null
+++ b/sound/soc/atmel/atmel-pcm-dma.c
@@ -0,0 +1,144 @@
+/*
+ * atmel-pcm-dma.c -- ALSA PCM DMA support for the Atmel SoC.
+ *
+ * Copyright (C) 2012 Atmel
+ *
+ * Author: Bo Shen <voice.shen@atmel.com>
+ *
+ * Based on atmel-pcm by:
+ * Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ * Copyright 2008 Atmel
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/atmel-ssc.h>
+#include <linux/platform_data/dma-atmel.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "atmel-pcm.h"
+
+/*--------------------------------------------------------------------------*\
+ * Hardware definition
+\*--------------------------------------------------------------------------*/
+static const struct snd_pcm_hardware atmel_pcm_dma_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_PAUSE,
+ .period_bytes_min = 256, /* lighting DMA overhead */
+ .period_bytes_max = 2 * 0xffff, /* if 2 bytes format */
+ .periods_min = 8,
+ .periods_max = 1024, /* no limit */
+ .buffer_bytes_max = ATMEL_SSC_DMABUF_SIZE,
+};
+
+/**
+ * atmel_pcm_dma_irq: SSC interrupt handler for DMAENGINE enabled SSC
+ *
+ * We use DMAENGINE to send/receive data to/from SSC so this ISR is only to
+ * check if any overrun occured.
+ */
+static void atmel_pcm_dma_irq(u32 ssc_sr,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct atmel_pcm_dma_params *prtd;
+
+ prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+ if (ssc_sr & prtd->mask->ssc_error) {
+ if (snd_pcm_running(substream))
+ pr_warn("atmel-pcm: buffer %s on %s (SSC_SR=%#x)\n",
+ substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+ ? "underrun" : "overrun", prtd->name,
+ ssc_sr);
+
+ /* stop RX and capture: will be enabled again at restart */
+ ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_disable);
+ snd_pcm_stream_lock(substream);
+ snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+ snd_pcm_stream_unlock(substream);
+
+ /* now drain RHR and read status to remove xrun condition */
+ ssc_readx(prtd->ssc->regs, SSC_RHR);
+ ssc_readx(prtd->ssc->regs, SSC_SR);
+ }
+}
+
+static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct atmel_pcm_dma_params *prtd;
+ struct ssc_device *ssc;
+ int ret;
+
+ prtd = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+ ssc = prtd->ssc;
+
+ ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config);
+ if (ret) {
+ pr_err("atmel-pcm: hwparams to dma slave configure failed\n");
+ return ret;
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ slave_config->dst_addr = ssc->phybase + SSC_THR;
+ slave_config->dst_maxburst = 1;
+ } else {
+ slave_config->src_addr = ssc->phybase + SSC_RHR;
+ slave_config->src_maxburst = 1;
+ }
+
+ prtd->dma_intr_handler = atmel_pcm_dma_irq;
+
+ return 0;
+}
+
+static const struct snd_dmaengine_pcm_config atmel_dmaengine_pcm_config = {
+ .prepare_slave_config = atmel_pcm_configure_dma,
+ .pcm_hardware = &atmel_pcm_dma_hardware,
+ .prealloc_buffer_size = ATMEL_SSC_DMABUF_SIZE,
+};
+
+int atmel_pcm_dma_platform_register(struct device *dev)
+{
+ return snd_dmaengine_pcm_register(dev, &atmel_dmaengine_pcm_config,
+ SND_DMAENGINE_PCM_FLAG_NO_RESIDUE);
+}
+EXPORT_SYMBOL(atmel_pcm_dma_platform_register);
+
+void atmel_pcm_dma_platform_unregister(struct device *dev)
+{
+ snd_dmaengine_pcm_unregister(dev);
+}
+EXPORT_SYMBOL(atmel_pcm_dma_platform_unregister);
+
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("Atmel DMA based PCM module");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-pcm-pdc.c b/sound/soc/atmel/atmel-pcm-pdc.c
new file mode 100644
index 00000000000..a366b3503c2
--- /dev/null
+++ b/sound/soc/atmel/atmel-pcm-pdc.c
@@ -0,0 +1,337 @@
+/*
+ * atmel-pcm.c -- ALSA PCM interface for the Atmel atmel SoC.
+ *
+ * Copyright (C) 2005 SAN People
+ * Copyright (C) 2008 Atmel
+ *
+ * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *
+ * Based on at91-pcm. by:
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Copyright 2006 Endrelia Technologies Inc.
+ *
+ * Based on pxa2xx-pcm.c by:
+ *
+ * Author: Nicolas Pitre
+ * Created: Nov 30, 2004
+ * Copyright: (C) 2004 MontaVista Software, Inc.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/atmel_pdc.h>
+#include <linux/atmel-ssc.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "atmel-pcm.h"
+
+
+/*--------------------------------------------------------------------------*\
+ * Hardware definition
+\*--------------------------------------------------------------------------*/
+/* TODO: These values were taken from the AT91 platform driver, check
+ * them against real values for AT32
+ */
+static const struct snd_pcm_hardware atmel_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE,
+ .period_bytes_min = 32,
+ .period_bytes_max = 8192,
+ .periods_min = 2,
+ .periods_max = 1024,
+ .buffer_bytes_max = ATMEL_SSC_DMABUF_SIZE,
+};
+
+
+/*--------------------------------------------------------------------------*\
+ * Data types
+\*--------------------------------------------------------------------------*/
+struct atmel_runtime_data {
+ struct atmel_pcm_dma_params *params;
+ dma_addr_t dma_buffer; /* physical address of dma buffer */
+ dma_addr_t dma_buffer_end; /* first address beyond DMA buffer */
+ size_t period_size;
+
+ dma_addr_t period_ptr; /* physical address of next period */
+};
+
+/*--------------------------------------------------------------------------*\
+ * ISR
+\*--------------------------------------------------------------------------*/
+static void atmel_pcm_dma_irq(u32 ssc_sr,
+ struct snd_pcm_substream *substream)
+{
+ struct atmel_runtime_data *prtd = substream->runtime->private_data;
+ struct atmel_pcm_dma_params *params = prtd->params;
+ static int count;
+
+ count++;
+
+ if (ssc_sr & params->mask->ssc_endbuf) {
+ pr_warn("atmel-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
+ substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+ ? "underrun" : "overrun",
+ params->name, ssc_sr, count);
+
+ /* re-start the PDC */
+ ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+ params->mask->pdc_disable);
+ prtd->period_ptr += prtd->period_size;
+ if (prtd->period_ptr >= prtd->dma_buffer_end)
+ prtd->period_ptr = prtd->dma_buffer;
+
+ ssc_writex(params->ssc->regs, params->pdc->xpr,
+ prtd->period_ptr);
+ ssc_writex(params->ssc->regs, params->pdc->xcr,
+ prtd->period_size / params->pdc_xfer_size);
+ ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+ params->mask->pdc_enable);
+ }
+
+ if (ssc_sr & params->mask->ssc_endx) {
+ /* Load the PDC next pointer and counter registers */
+ prtd->period_ptr += prtd->period_size;
+ if (prtd->period_ptr >= prtd->dma_buffer_end)
+ prtd->period_ptr = prtd->dma_buffer;
+
+ ssc_writex(params->ssc->regs, params->pdc->xnpr,
+ prtd->period_ptr);
+ ssc_writex(params->ssc->regs, params->pdc->xncr,
+ prtd->period_size / params->pdc_xfer_size);
+ }
+
+ snd_pcm_period_elapsed(substream);
+}
+
+
+/*--------------------------------------------------------------------------*\
+ * PCM operations
+\*--------------------------------------------------------------------------*/
+static int atmel_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct atmel_runtime_data *prtd = runtime->private_data;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+ /* this may get called several times by oss emulation
+ * with different params */
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+ runtime->dma_bytes = params_buffer_bytes(params);
+
+ prtd->params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+ prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
+
+ prtd->dma_buffer = runtime->dma_addr;
+ prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
+ prtd->period_size = params_period_bytes(params);
+
+ pr_debug("atmel-pcm: "
+ "hw_params: DMA for %s initialized "
+ "(dma_bytes=%zu, period_size=%zu)\n",
+ prtd->params->name,
+ runtime->dma_bytes,
+ prtd->period_size);
+ return 0;
+}
+
+static int atmel_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct atmel_runtime_data *prtd = substream->runtime->private_data;
+ struct atmel_pcm_dma_params *params = prtd->params;
+
+ if (params != NULL) {
+ ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
+ params->mask->pdc_disable);
+ prtd->params->dma_intr_handler = NULL;
+ }
+
+ return 0;
+}
+
+static int atmel_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct atmel_runtime_data *prtd = substream->runtime->private_data;
+ struct atmel_pcm_dma_params *params = prtd->params;
+
+ ssc_writex(params->ssc->regs, SSC_IDR,
+ params->mask->ssc_endx | params->mask->ssc_endbuf);
+ ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+ params->mask->pdc_disable);
+ return 0;
+}
+
+static int atmel_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ struct snd_pcm_runtime *rtd = substream->runtime;
+ struct atmel_runtime_data *prtd = rtd->private_data;
+ struct atmel_pcm_dma_params *params = prtd->params;
+ int ret = 0;
+
+ pr_debug("atmel-pcm:buffer_size = %ld,"
+ "dma_area = %p, dma_bytes = %zu\n",
+ rtd->buffer_size, rtd->dma_area, rtd->dma_bytes);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ prtd->period_ptr = prtd->dma_buffer;
+
+ ssc_writex(params->ssc->regs, params->pdc->xpr,
+ prtd->period_ptr);
+ ssc_writex(params->ssc->regs, params->pdc->xcr,
+ prtd->period_size / params->pdc_xfer_size);
+
+ prtd->period_ptr += prtd->period_size;
+ ssc_writex(params->ssc->regs, params->pdc->xnpr,
+ prtd->period_ptr);
+ ssc_writex(params->ssc->regs, params->pdc->xncr,
+ prtd->period_size / params->pdc_xfer_size);
+
+ pr_debug("atmel-pcm: trigger: "
+ "period_ptr=%lx, xpr=%u, "
+ "xcr=%u, xnpr=%u, xncr=%u\n",
+ (unsigned long)prtd->period_ptr,
+ ssc_readx(params->ssc->regs, params->pdc->xpr),
+ ssc_readx(params->ssc->regs, params->pdc->xcr),
+ ssc_readx(params->ssc->regs, params->pdc->xnpr),
+ ssc_readx(params->ssc->regs, params->pdc->xncr));
+
+ ssc_writex(params->ssc->regs, SSC_IER,
+ params->mask->ssc_endx | params->mask->ssc_endbuf);
+ ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
+ params->mask->pdc_enable);
+
+ pr_debug("sr=%u imr=%u\n",
+ ssc_readx(params->ssc->regs, SSC_SR),
+ ssc_readx(params->ssc->regs, SSC_IER));
+ break; /* SNDRV_PCM_TRIGGER_START */
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+ params->mask->pdc_disable);
+ break;
+
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+ params->mask->pdc_enable);
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static snd_pcm_uframes_t atmel_pcm_pointer(
+ struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct atmel_runtime_data *prtd = runtime->private_data;
+ struct atmel_pcm_dma_params *params = prtd->params;
+ dma_addr_t ptr;
+ snd_pcm_uframes_t x;
+
+ ptr = (dma_addr_t) ssc_readx(params->ssc->regs, params->pdc->xpr);
+ x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
+
+ if (x == runtime->buffer_size)
+ x = 0;
+
+ return x;
+}
+
+static int atmel_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct atmel_runtime_data *prtd;
+ int ret = 0;
+
+ snd_soc_set_runtime_hwparams(substream, &atmel_pcm_hardware);
+
+ /* ensure that buffer size is a multiple of period size */
+ ret = snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ goto out;
+
+ prtd = kzalloc(sizeof(struct atmel_runtime_data), GFP_KERNEL);
+ if (prtd == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ runtime->private_data = prtd;
+
+ out:
+ return ret;
+}
+
+static int atmel_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct atmel_runtime_data *prtd = substream->runtime->private_data;
+
+ kfree(prtd);
+ return 0;
+}
+
+static struct snd_pcm_ops atmel_pcm_ops = {
+ .open = atmel_pcm_open,
+ .close = atmel_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = atmel_pcm_hw_params,
+ .hw_free = atmel_pcm_hw_free,
+ .prepare = atmel_pcm_prepare,
+ .trigger = atmel_pcm_trigger,
+ .pointer = atmel_pcm_pointer,
+ .mmap = atmel_pcm_mmap,
+};
+
+static struct snd_soc_platform_driver atmel_soc_platform = {
+ .ops = &atmel_pcm_ops,
+ .pcm_new = atmel_pcm_new,
+ .pcm_free = atmel_pcm_free,
+};
+
+int atmel_pcm_pdc_platform_register(struct device *dev)
+{
+ return snd_soc_register_platform(dev, &atmel_soc_platform);
+}
+EXPORT_SYMBOL(atmel_pcm_pdc_platform_register);
+
+void atmel_pcm_pdc_platform_unregister(struct device *dev)
+{
+ snd_soc_unregister_platform(dev);
+}
+EXPORT_SYMBOL(atmel_pcm_pdc_platform_unregister);
+
+MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
+MODULE_DESCRIPTION("Atmel PCM module");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index a21ff459e5d..8ae3fa5ac60 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -32,80 +32,25 @@
*/
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
#include <linux/dma-mapping.h>
-#include <linux/atmel_pdc.h>
-#include <linux/atmel-ssc.h>
-
-#include <sound/core.h>
#include <sound/pcm.h>
-#include <sound/pcm_params.h>
#include <sound/soc.h>
-
#include "atmel-pcm.h"
-
-/*--------------------------------------------------------------------------*\
- * Hardware definition
-\*--------------------------------------------------------------------------*/
-/* TODO: These values were taken from the AT91 platform driver, check
- * them against real values for AT32
- */
-static const struct snd_pcm_hardware atmel_pcm_hardware = {
- .info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_PAUSE,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- .period_bytes_min = 32,
- .period_bytes_max = 8192,
- .periods_min = 2,
- .periods_max = 1024,
- .buffer_bytes_max = 32 * 1024,
-};
-
-
-/*--------------------------------------------------------------------------*\
- * Data types
-\*--------------------------------------------------------------------------*/
-struct atmel_runtime_data {
- struct atmel_pcm_dma_params *params;
- dma_addr_t dma_buffer; /* physical address of dma buffer */
- dma_addr_t dma_buffer_end; /* first address beyond DMA buffer */
- size_t period_size;
-
- dma_addr_t period_ptr; /* physical address of next period */
-
- /* PDC register save */
- u32 pdc_xpr_save;
- u32 pdc_xcr_save;
- u32 pdc_xnpr_save;
- u32 pdc_xncr_save;
-};
-
-
-/*--------------------------------------------------------------------------*\
- * Helper functions
-\*--------------------------------------------------------------------------*/
static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
int stream)
{
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = atmel_pcm_hardware.buffer_bytes_max;
+ size_t size = ATMEL_SSC_DMABUF_SIZE;
buf->dev.type = SNDRV_DMA_TYPE_DEV;
buf->dev.dev = pcm->card->dev;
buf->private_data = NULL;
buf->area = dma_alloc_coherent(pcm->card->dev, size,
- &buf->addr, GFP_KERNEL);
- pr_debug("atmel-pcm:"
- "preallocate_dma_buffer: area=%p, addr=%p, size=%d\n",
- (void *) buf->area,
- (void *) buf->addr,
- size);
+ &buf->addr, GFP_KERNEL);
+ pr_debug("atmel-pcm: alloc dma buffer: area=%p, addr=%p, size=%zu\n",
+ (void *)buf->area, (void *)(long)buf->addr, size);
if (!buf->area)
return -ENOMEM;
@@ -113,269 +58,28 @@ static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
buf->bytes = size;
return 0;
}
-/*--------------------------------------------------------------------------*\
- * ISR
-\*--------------------------------------------------------------------------*/
-static void atmel_pcm_dma_irq(u32 ssc_sr,
- struct snd_pcm_substream *substream)
-{
- struct atmel_runtime_data *prtd = substream->runtime->private_data;
- struct atmel_pcm_dma_params *params = prtd->params;
- static int count;
-
- count++;
-
- if (ssc_sr & params->mask->ssc_endbuf) {
- pr_warning("atmel-pcm: buffer %s on %s"
- " (SSC_SR=%#x, count=%d)\n",
- substream->stream == SNDRV_PCM_STREAM_PLAYBACK
- ? "underrun" : "overrun",
- params->name, ssc_sr, count);
-
- /* re-start the PDC */
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end)
- prtd->period_ptr = prtd->dma_buffer;
-
- ssc_writex(params->ssc->regs, params->pdc->xpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_enable);
- }
-
- if (ssc_sr & params->mask->ssc_endx) {
- /* Load the PDC next pointer and counter registers */
- prtd->period_ptr += prtd->period_size;
- if (prtd->period_ptr >= prtd->dma_buffer_end)
- prtd->period_ptr = prtd->dma_buffer;
-
- ssc_writex(params->ssc->regs, params->pdc->xnpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
- }
-
- snd_pcm_period_elapsed(substream);
-}
-
-
-/*--------------------------------------------------------------------------*\
- * PCM operations
-\*--------------------------------------------------------------------------*/
-static int atmel_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct atmel_runtime_data *prtd = runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
-
- /* this may get called several times by oss emulation
- * with different params */
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
- runtime->dma_bytes = params_buffer_bytes(params);
-
- prtd->params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
- prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
-
- prtd->dma_buffer = runtime->dma_addr;
- prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
- prtd->period_size = params_period_bytes(params);
-
- pr_debug("atmel-pcm: "
- "hw_params: DMA for %s initialized "
- "(dma_bytes=%u, period_size=%u)\n",
- prtd->params->name,
- runtime->dma_bytes,
- prtd->period_size);
- return 0;
-}
-
-static int atmel_pcm_hw_free(struct snd_pcm_substream *substream)
-{
- struct atmel_runtime_data *prtd = substream->runtime->private_data;
- struct atmel_pcm_dma_params *params = prtd->params;
-
- if (params != NULL) {
- ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
- params->mask->pdc_disable);
- prtd->params->dma_intr_handler = NULL;
- }
-
- return 0;
-}
-
-static int atmel_pcm_prepare(struct snd_pcm_substream *substream)
-{
- struct atmel_runtime_data *prtd = substream->runtime->private_data;
- struct atmel_pcm_dma_params *params = prtd->params;
-
- ssc_writex(params->ssc->regs, SSC_IDR,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
- return 0;
-}
-
-static int atmel_pcm_trigger(struct snd_pcm_substream *substream,
- int cmd)
-{
- struct snd_pcm_runtime *rtd = substream->runtime;
- struct atmel_runtime_data *prtd = rtd->private_data;
- struct atmel_pcm_dma_params *params = prtd->params;
- int ret = 0;
-
- pr_debug("atmel-pcm:buffer_size = %ld,"
- "dma_area = %p, dma_bytes = %u\n",
- rtd->buffer_size, rtd->dma_area, rtd->dma_bytes);
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- prtd->period_ptr = prtd->dma_buffer;
-
- ssc_writex(params->ssc->regs, params->pdc->xpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xcr,
- prtd->period_size / params->pdc_xfer_size);
-
- prtd->period_ptr += prtd->period_size;
- ssc_writex(params->ssc->regs, params->pdc->xnpr,
- prtd->period_ptr);
- ssc_writex(params->ssc->regs, params->pdc->xncr,
- prtd->period_size / params->pdc_xfer_size);
-
- pr_debug("atmel-pcm: trigger: "
- "period_ptr=%lx, xpr=%u, "
- "xcr=%u, xnpr=%u, xncr=%u\n",
- (unsigned long)prtd->period_ptr,
- ssc_readx(params->ssc->regs, params->pdc->xpr),
- ssc_readx(params->ssc->regs, params->pdc->xcr),
- ssc_readx(params->ssc->regs, params->pdc->xnpr),
- ssc_readx(params->ssc->regs, params->pdc->xncr));
-
- ssc_writex(params->ssc->regs, SSC_IER,
- params->mask->ssc_endx | params->mask->ssc_endbuf);
- ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
- params->mask->pdc_enable);
-
- pr_debug("sr=%u imr=%u\n",
- ssc_readx(params->ssc->regs, SSC_SR),
- ssc_readx(params->ssc->regs, SSC_IER));
- break; /* SNDRV_PCM_TRIGGER_START */
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_disable);
- break;
-
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
- params->mask->pdc_enable);
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static snd_pcm_uframes_t atmel_pcm_pointer(
- struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct atmel_runtime_data *prtd = runtime->private_data;
- struct atmel_pcm_dma_params *params = prtd->params;
- dma_addr_t ptr;
- snd_pcm_uframes_t x;
-
- ptr = (dma_addr_t) ssc_readx(params->ssc->regs, params->pdc->xpr);
- x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
-
- if (x == runtime->buffer_size)
- x = 0;
-
- return x;
-}
-
-static int atmel_pcm_open(struct snd_pcm_substream *substream)
-{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct atmel_runtime_data *prtd;
- int ret = 0;
-
- snd_soc_set_runtime_hwparams(substream, &atmel_pcm_hardware);
-
- /* ensure that buffer size is a multiple of period size */
- ret = snd_pcm_hw_constraint_integer(runtime,
- SNDRV_PCM_HW_PARAM_PERIODS);
- if (ret < 0)
- goto out;
-
- prtd = kzalloc(sizeof(struct atmel_runtime_data), GFP_KERNEL);
- if (prtd == NULL) {
- ret = -ENOMEM;
- goto out;
- }
- runtime->private_data = prtd;
-
- out:
- return ret;
-}
-
-static int atmel_pcm_close(struct snd_pcm_substream *substream)
-{
- struct atmel_runtime_data *prtd = substream->runtime->private_data;
-
- kfree(prtd);
- return 0;
-}
-static int atmel_pcm_mmap(struct snd_pcm_substream *substream,
+int atmel_pcm_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
return remap_pfn_range(vma, vma->vm_start,
substream->dma_buffer.addr >> PAGE_SHIFT,
vma->vm_end - vma->vm_start, vma->vm_page_prot);
}
+EXPORT_SYMBOL_GPL(atmel_pcm_mmap);
-static struct snd_pcm_ops atmel_pcm_ops = {
- .open = atmel_pcm_open,
- .close = atmel_pcm_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = atmel_pcm_hw_params,
- .hw_free = atmel_pcm_hw_free,
- .prepare = atmel_pcm_prepare,
- .trigger = atmel_pcm_trigger,
- .pointer = atmel_pcm_pointer,
- .mmap = atmel_pcm_mmap,
-};
-
-
-/*--------------------------------------------------------------------------*\
- * ASoC platform driver
-\*--------------------------------------------------------------------------*/
-static u64 atmel_pcm_dmamask = 0xffffffff;
-
-static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
+int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_pcm *pcm = rtd->pcm;
- int ret = 0;
+ int ret;
- if (!card->dev->dma_mask)
- card->dev->dma_mask = &atmel_pcm_dmamask;
- if (!card->dev->coherent_dma_mask)
- card->dev->coherent_dma_mask = 0xffffffff;
+ ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+ if (ret)
+ return ret;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+ pr_debug("atmel-pcm: allocating PCM playback DMA buffer\n");
ret = atmel_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
@@ -383,8 +87,7 @@ static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
}
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
- pr_debug("atmel-pcm:"
- "Allocating PCM capture DMA buffer\n");
+ pr_debug("atmel-pcm: allocating PCM capture DMA buffer\n");
ret = atmel_pcm_preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)
@@ -393,8 +96,9 @@ static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
out:
return ret;
}
+EXPORT_SYMBOL_GPL(atmel_pcm_new);
-static void atmel_pcm_free_dma_buffers(struct snd_pcm *pcm)
+void atmel_pcm_free(struct snd_pcm *pcm)
{
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
@@ -413,89 +117,5 @@ static void atmel_pcm_free_dma_buffers(struct snd_pcm *pcm)
buf->area = NULL;
}
}
+EXPORT_SYMBOL_GPL(atmel_pcm_free);
-#ifdef CONFIG_PM
-static int atmel_pcm_suspend(struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct atmel_runtime_data *prtd;
- struct atmel_pcm_dma_params *params;
-
- if (!runtime)
- return 0;
-
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* disable the PDC and save the PDC registers */
-
- ssc_writel(params->ssc->regs, PDC_PTCR, params->mask->pdc_disable);
-
- prtd->pdc_xpr_save = ssc_readx(params->ssc->regs, params->pdc->xpr);
- prtd->pdc_xcr_save = ssc_readx(params->ssc->regs, params->pdc->xcr);
- prtd->pdc_xnpr_save = ssc_readx(params->ssc->regs, params->pdc->xnpr);
- prtd->pdc_xncr_save = ssc_readx(params->ssc->regs, params->pdc->xncr);
-
- return 0;
-}
-
-static int atmel_pcm_resume(struct snd_soc_dai *dai)
-{
- struct snd_pcm_runtime *runtime = dai->runtime;
- struct atmel_runtime_data *prtd;
- struct atmel_pcm_dma_params *params;
-
- if (!runtime)
- return 0;
-
- prtd = runtime->private_data;
- params = prtd->params;
-
- /* restore the PDC registers and enable the PDC */
- ssc_writex(params->ssc->regs, params->pdc->xpr, prtd->pdc_xpr_save);
- ssc_writex(params->ssc->regs, params->pdc->xcr, prtd->pdc_xcr_save);
- ssc_writex(params->ssc->regs, params->pdc->xnpr, prtd->pdc_xnpr_save);
- ssc_writex(params->ssc->regs, params->pdc->xncr, prtd->pdc_xncr_save);
-
- ssc_writel(params->ssc->regs, PDC_PTCR, params->mask->pdc_enable);
- return 0;
-}
-#else
-#define atmel_pcm_suspend NULL
-#define atmel_pcm_resume NULL
-#endif
-
-static struct snd_soc_platform_driver atmel_soc_platform = {
- .ops = &atmel_pcm_ops,
- .pcm_new = atmel_pcm_new,
- .pcm_free = atmel_pcm_free_dma_buffers,
- .suspend = atmel_pcm_suspend,
- .resume = atmel_pcm_resume,
-};
-
-static int __devinit atmel_soc_platform_probe(struct platform_device *pdev)
-{
- return snd_soc_register_platform(&pdev->dev, &atmel_soc_platform);
-}
-
-static int __devexit atmel_soc_platform_remove(struct platform_device *pdev)
-{
- snd_soc_unregister_platform(&pdev->dev);
- return 0;
-}
-
-static struct platform_driver atmel_pcm_driver = {
- .driver = {
- .name = "atmel-pcm-audio",
- .owner = THIS_MODULE,
- },
-
- .probe = atmel_soc_platform_probe,
- .remove = __devexit_p(atmel_soc_platform_remove),
-};
-
-module_platform_driver(atmel_pcm_driver);
-
-MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
-MODULE_DESCRIPTION("Atmel PCM module");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-pcm.h b/sound/soc/atmel/atmel-pcm.h
index 5e0a95e6432..12ae814eff2 100644
--- a/sound/soc/atmel/atmel-pcm.h
+++ b/sound/soc/atmel/atmel-pcm.h
@@ -36,6 +36,8 @@
#include <linux/atmel-ssc.h>
+#define ATMEL_SSC_DMABUF_SIZE (64 * 1024)
+
/*
* Registers and status bits that are required by the PCM driver.
*/
@@ -50,6 +52,7 @@ struct atmel_pdc_regs {
struct atmel_ssc_mask {
u32 ssc_enable; /* SSC recv/trans enable */
u32 ssc_disable; /* SSC recv/trans disable */
+ u32 ssc_error; /* SSC error conditions */
u32 ssc_endx; /* SSC ENDTX or ENDRX */
u32 ssc_endbuf; /* SSC TXBUFE or RXBUFF */
u32 pdc_enable; /* PDC recv/trans enable */
@@ -80,4 +83,37 @@ struct atmel_pcm_dma_params {
#define ssc_readx(base, reg) (__raw_readl((base) + (reg)))
#define ssc_writex(base, reg, value) __raw_writel((value), (base) + (reg))
+int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd);
+void atmel_pcm_free(struct snd_pcm *pcm);
+int atmel_pcm_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma);
+
+#if defined(CONFIG_SND_ATMEL_SOC_PDC) || \
+ defined(CONFIG_SND_ATMEL_SOC_PDC_MODULE)
+int atmel_pcm_pdc_platform_register(struct device *dev);
+void atmel_pcm_pdc_platform_unregister(struct device *dev);
+#else
+static inline int atmel_pcm_pdc_platform_register(struct device *dev)
+{
+ return 0;
+}
+static inline void atmel_pcm_pdc_platform_unregister(struct device *dev)
+{
+}
+#endif
+
+#if defined(CONFIG_SND_ATMEL_SOC_DMA) || \
+ defined(CONFIG_SND_ATMEL_SOC_DMA_MODULE)
+int atmel_pcm_dma_platform_register(struct device *dev);
+void atmel_pcm_dma_platform_unregister(struct device *dev);
+#else
+static inline int atmel_pcm_dma_platform_register(struct device *dev)
+{
+ return 0;
+}
+static inline void atmel_pcm_dma_platform_unregister(struct device *dev)
+{
+}
+#endif
+
#endif /* _ATMEL_PCM_H */
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index 354341ec0f4..de433cfd044 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -42,17 +42,11 @@
#include <sound/initval.h>
#include <sound/soc.h>
-#include <mach/hardware.h>
-
#include "atmel-pcm.h"
#include "atmel_ssc_dai.h"
-#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)
-#define NUM_SSC_DEVICES 1
-#else
#define NUM_SSC_DEVICES 3
-#endif
/*
* SSC PDC registers required by the PCM DMA engine.
@@ -79,6 +73,7 @@ static struct atmel_ssc_mask ssc_tx_mask = {
.ssc_disable = SSC_BIT(CR_TXDIS),
.ssc_endx = SSC_BIT(SR_ENDTX),
.ssc_endbuf = SSC_BIT(SR_TXBUFE),
+ .ssc_error = SSC_BIT(SR_OVRUN),
.pdc_enable = ATMEL_PDC_TXTEN,
.pdc_disable = ATMEL_PDC_TXTDIS,
};
@@ -88,6 +83,7 @@ static struct atmel_ssc_mask ssc_rx_mask = {
.ssc_disable = SSC_BIT(CR_RXDIS),
.ssc_endx = SSC_BIT(SR_ENDRX),
.ssc_endbuf = SSC_BIT(SR_RXBUFF),
+ .ssc_error = SSC_BIT(SR_OVRUN),
.pdc_enable = ATMEL_PDC_RXTEN,
.pdc_disable = ATMEL_PDC_RXTDIS,
};
@@ -107,7 +103,6 @@ static struct atmel_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
.pdc = &pdc_rx_reg,
.mask = &ssc_rx_mask,
} },
-#if NUM_SSC_DEVICES == 3
{{
.name = "SSC1 PCM out",
.pdc = &pdc_tx_reg,
@@ -128,7 +123,6 @@ static struct atmel_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
.pdc = &pdc_rx_reg,
.mask = &ssc_rx_mask,
} },
-#endif
};
@@ -139,7 +133,6 @@ static struct atmel_ssc_info ssc_info[NUM_SSC_DEVICES] = {
.dir_mask = SSC_DIR_MASK_UNUSED,
.initialized = 0,
},
-#if NUM_SSC_DEVICES == 3
{
.name = "ssc1",
.lock = __SPIN_LOCK_UNLOCKED(ssc_info[1].lock),
@@ -152,7 +145,6 @@ static struct atmel_ssc_info ssc_info[NUM_SSC_DEVICES] = {
.dir_mask = SSC_DIR_MASK_UNUSED,
.initialized = 0,
},
-#endif
};
@@ -206,15 +198,27 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
- int dir_mask;
+ struct atmel_pcm_dma_params *dma_params;
+ int dir, dir_mask;
pr_debug("atmel_ssc_startup: SSC_SR=0x%u\n",
ssc_readl(ssc_p->ssc->regs, SR));
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ dir = 0;
dir_mask = SSC_DIR_MASK_PLAYBACK;
- else
+ } else {
+ dir = 1;
dir_mask = SSC_DIR_MASK_CAPTURE;
+ }
+
+ dma_params = &ssc_dma_params[dai->id][dir];
+ dma_params->ssc = ssc_p->ssc;
+ dma_params->substream = substream;
+
+ ssc_p->dma_params[dir] = dma_params;
+
+ snd_soc_dai_set_dma_data(dai, substream, dma_params);
spin_lock_irq(&ssc_p->lock);
if (ssc_p->dir_mask & dir_mask) {
@@ -335,9 +339,9 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
int id = dai->id;
struct atmel_ssc_info *ssc_p = &ssc_info[id];
+ struct ssc_device *ssc = ssc_p->ssc;
struct atmel_pcm_dma_params *dma_params;
int dir, channels, bits;
u32 tfmr, rfmr, tcmr, rcmr;
@@ -354,19 +358,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
else
dir = 1;
- dma_params = &ssc_dma_params[id][dir];
- dma_params->ssc = ssc_p->ssc;
- dma_params->substream = substream;
-
- ssc_p->dma_params[dir] = dma_params;
-
- /*
- * The snd_soc_pcm_stream->dma_data field is only used to communicate
- * the appropriate DMA parameters to the pcm driver hw_params()
- * function. It should not be used for other purposes
- * as it is common to all substreams.
- */
- snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_params);
+ dma_params = ssc_p->dma_params[dir];
channels = params_channels(params);
@@ -475,7 +467,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(RCMR_START, start_event)
| SSC_BF(RCMR_CKI, SSC_CKI_RISING)
| SSC_BF(RCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(RCMR_CKS, SSC_CKS_CLOCK);
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_PIN : SSC_CKS_CLOCK);
rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(RFMR_FSOS, SSC_FSOS_NONE)
@@ -490,7 +483,8 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
| SSC_BF(TCMR_START, start_event)
| SSC_BF(TCMR_CKI, SSC_CKI_FALLING)
| SSC_BF(TCMR_CKO, SSC_CKO_NONE)
- | SSC_BF(TCMR_CKS, SSC_CKS_PIN);
+ | SSC_BF(TCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_CLOCK : SSC_CKS_PIN);
tfmr = SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
| SSC_BF(TFMR_FSDEN, 0)
@@ -543,6 +537,51 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
break;
case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_CBM_CFM:
+ /*
+ * DSP/PCM Mode A format, CODEC supplies BCLK and LRC clocks.
+ *
+ * The SSC transmit clock is obtained from the BCLK signal on
+ * on the TK line, and the SSC receive clock is
+ * generated from the transmit clock.
+ *
+ * Data is transferred on first BCLK after LRC pulse rising
+ * edge.If stereo, the right channel data is contiguous with
+ * the left channel data.
+ */
+ rcmr = SSC_BF(RCMR_PERIOD, 0)
+ | SSC_BF(RCMR_STTDLY, START_DELAY)
+ | SSC_BF(RCMR_START, SSC_START_RISING_RF)
+ | SSC_BF(RCMR_CKI, SSC_CKI_RISING)
+ | SSC_BF(RCMR_CKO, SSC_CKO_NONE)
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_PIN : SSC_CKS_CLOCK);
+
+ rfmr = SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
+ | SSC_BF(RFMR_FSOS, SSC_FSOS_NONE)
+ | SSC_BF(RFMR_FSLEN, 0)
+ | SSC_BF(RFMR_DATNB, (channels - 1))
+ | SSC_BIT(RFMR_MSBF)
+ | SSC_BF(RFMR_LOOP, 0)
+ | SSC_BF(RFMR_DATLEN, (bits - 1));
+
+ tcmr = SSC_BF(TCMR_PERIOD, 0)
+ | SSC_BF(TCMR_STTDLY, START_DELAY)
+ | SSC_BF(TCMR_START, SSC_START_RISING_RF)
+ | SSC_BF(TCMR_CKI, SSC_CKI_FALLING)
+ | SSC_BF(TCMR_CKO, SSC_CKO_NONE)
+ | SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+ SSC_CKS_CLOCK : SSC_CKS_PIN);
+
+ tfmr = SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
+ | SSC_BF(TFMR_FSDEN, 0)
+ | SSC_BF(TFMR_FSOS, SSC_FSOS_NONE)
+ | SSC_BF(TFMR_FSLEN, 0)
+ | SSC_BF(TFMR_DATNB, (channels - 1))
+ | SSC_BIT(TFMR_MSBF)
+ | SSC_BF(TFMR_DATDEF, 0)
+ | SSC_BF(TFMR_DATLEN, (bits - 1));
+ break;
+
default:
printk(KERN_WARNING "atmel_ssc_dai: unsupported DAI format 0x%x\n",
ssc_p->daifmt);
@@ -614,7 +653,8 @@ static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
dma_params = ssc_p->dma_params[dir];
- ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_enable);
+ ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_disable);
+ ssc_writel(ssc_p->ssc->regs, IDR, dma_params->mask->ssc_error);
pr_debug("%s enabled SSC_SR=0x%08x\n",
dir ? "receive" : "transmit",
@@ -622,6 +662,33 @@ static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
return 0;
}
+static int atmel_ssc_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
+ struct atmel_pcm_dma_params *dma_params;
+ int dir;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dir = 0;
+ else
+ dir = 1;
+
+ dma_params = ssc_p->dma_params[dir];
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_enable);
+ break;
+ default:
+ ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_disable);
+ break;
+ }
+
+ return 0;
+}
#ifdef CONFIG_PM
static int atmel_ssc_suspend(struct snd_soc_dai *cpu_dai)
@@ -687,33 +754,6 @@ static int atmel_ssc_resume(struct snd_soc_dai *cpu_dai)
# define atmel_ssc_resume NULL
#endif /* CONFIG_PM */
-static int atmel_ssc_probe(struct snd_soc_dai *dai)
-{
- struct atmel_ssc_info *ssc_p = &ssc_info[dai->id];
- int ret = 0;
-
- snd_soc_dai_set_drvdata(dai, ssc_p);
-
- /*
- * Request SSC device
- */
- ssc_p->ssc = ssc_request(dai->id);
- if (IS_ERR(ssc_p->ssc)) {
- printk(KERN_ERR "ASoC: Failed to request SSC %d\n", dai->id);
- ret = PTR_ERR(ssc_p->ssc);
- }
-
- return ret;
-}
-
-static int atmel_ssc_remove(struct snd_soc_dai *dai)
-{
- struct atmel_ssc_info *ssc_p = snd_soc_dai_get_drvdata(dai);
-
- ssc_free(ssc_p->ssc);
- return 0;
-}
-
#define ATMEL_SSC_RATES (SNDRV_PCM_RATE_8000_96000)
#define ATMEL_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
@@ -723,35 +763,13 @@ static const struct snd_soc_dai_ops atmel_ssc_dai_ops = {
.startup = atmel_ssc_startup,
.shutdown = atmel_ssc_shutdown,
.prepare = atmel_ssc_prepare,
+ .trigger = atmel_ssc_trigger,
.hw_params = atmel_ssc_hw_params,
.set_fmt = atmel_ssc_set_dai_fmt,
.set_clkdiv = atmel_ssc_set_dai_clkdiv,
};
-static struct snd_soc_dai_driver atmel_ssc_dai[NUM_SSC_DEVICES] = {
- {
- .name = "atmel-ssc-dai.0",
- .probe = atmel_ssc_probe,
- .remove = atmel_ssc_remove,
- .suspend = atmel_ssc_suspend,
- .resume = atmel_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = ATMEL_SSC_RATES,
- .formats = ATMEL_SSC_FORMATS,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = ATMEL_SSC_RATES,
- .formats = ATMEL_SSC_FORMATS,},
- .ops = &atmel_ssc_dai_ops,
- },
-#if NUM_SSC_DEVICES == 3
- {
- .name = "atmel-ssc-dai.1",
- .probe = atmel_ssc_probe,
- .remove = atmel_ssc_remove,
+static struct snd_soc_dai_driver atmel_ssc_dai = {
.suspend = atmel_ssc_suspend,
.resume = atmel_ssc_resume,
.playback = {
@@ -765,50 +783,55 @@ static struct snd_soc_dai_driver atmel_ssc_dai[NUM_SSC_DEVICES] = {
.rates = ATMEL_SSC_RATES,
.formats = ATMEL_SSC_FORMATS,},
.ops = &atmel_ssc_dai_ops,
- },
- {
- .name = "atmel-ssc-dai.2",
- .probe = atmel_ssc_probe,
- .remove = atmel_ssc_remove,
- .suspend = atmel_ssc_suspend,
- .resume = atmel_ssc_resume,
- .playback = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = ATMEL_SSC_RATES,
- .formats = ATMEL_SSC_FORMATS,},
- .capture = {
- .channels_min = 1,
- .channels_max = 2,
- .rates = ATMEL_SSC_RATES,
- .formats = ATMEL_SSC_FORMATS,},
- .ops = &atmel_ssc_dai_ops,
- },
-#endif
};
-static __devinit int asoc_ssc_probe(struct platform_device *pdev)
-{
- BUG_ON(pdev->id < 0);
- BUG_ON(pdev->id >= ARRAY_SIZE(atmel_ssc_dai));
- return snd_soc_register_dai(&pdev->dev, &atmel_ssc_dai[pdev->id]);
-}
+static const struct snd_soc_component_driver atmel_ssc_component = {
+ .name = "atmel-ssc",
+};
-static int __devexit asoc_ssc_remove(struct platform_device *pdev)
+static int asoc_ssc_init(struct device *dev)
{
- snd_soc_unregister_dai(&pdev->dev);
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ssc_device *ssc = platform_get_drvdata(pdev);
+ int ret;
+
+ ret = snd_soc_register_component(dev, &atmel_ssc_component,
+ &atmel_ssc_dai, 1);
+ if (ret) {
+ dev_err(dev, "Could not register DAI: %d\n", ret);
+ goto err;
+ }
+
+ if (ssc->pdata->use_dma)
+ ret = atmel_pcm_dma_platform_register(dev);
+ else
+ ret = atmel_pcm_pdc_platform_register(dev);
+
+ if (ret) {
+ dev_err(dev, "Could not register PCM: %d\n", ret);
+ goto err_unregister_dai;
+ }
+
return 0;
+
+err_unregister_dai:
+ snd_soc_unregister_component(dev);
+err:
+ return ret;
}
-static struct platform_driver asoc_ssc_driver = {
- .driver = {
- .name = "atmel-ssc-dai",
- .owner = THIS_MODULE,
- },
+static void asoc_ssc_exit(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ssc_device *ssc = platform_get_drvdata(pdev);
- .probe = asoc_ssc_probe,
- .remove = __devexit_p(asoc_ssc_remove),
-};
+ if (ssc->pdata->use_dma)
+ atmel_pcm_dma_platform_unregister(dev);
+ else
+ atmel_pcm_pdc_platform_unregister(dev);
+
+ snd_soc_unregister_component(dev);
+}
/**
* atmel_ssc_set_audio - Allocate the specified SSC for audio use.
@@ -816,50 +839,32 @@ static struct platform_driver asoc_ssc_driver = {
int atmel_ssc_set_audio(int ssc_id)
{
struct ssc_device *ssc;
- static struct platform_device *dma_pdev;
- struct platform_device *ssc_pdev;
int ret;
- if (ssc_id < 0 || ssc_id >= ARRAY_SIZE(atmel_ssc_dai))
- return -EINVAL;
-
- /* Allocate a dummy device for DMA if we don't have one already */
- if (!dma_pdev) {
- dma_pdev = platform_device_alloc("atmel-pcm-audio", -1);
- if (!dma_pdev)
- return -ENOMEM;
-
- ret = platform_device_add(dma_pdev);
- if (ret < 0) {
- platform_device_put(dma_pdev);
- dma_pdev = NULL;
- return ret;
- }
- }
-
- ssc_pdev = platform_device_alloc("atmel-ssc-dai", ssc_id);
- if (!ssc_pdev)
- return -ENOMEM;
-
/* If we can grab the SSC briefly to parent the DAI device off it */
ssc = ssc_request(ssc_id);
- if (IS_ERR(ssc))
- pr_warn("Unable to parent ASoC SSC DAI on SSC: %ld\n",
+ if (IS_ERR(ssc)) {
+ pr_err("Unable to parent ASoC SSC DAI on SSC: %ld\n",
PTR_ERR(ssc));
- else {
- ssc_pdev->dev.parent = &(ssc->pdev->dev);
- ssc_free(ssc);
+ return PTR_ERR(ssc);
+ } else {
+ ssc_info[ssc_id].ssc = ssc;
}
- ret = platform_device_add(ssc_pdev);
- if (ret < 0)
- platform_device_put(ssc_pdev);
+ ret = asoc_ssc_init(&ssc->pdev->dev);
return ret;
}
EXPORT_SYMBOL_GPL(atmel_ssc_set_audio);
-module_platform_driver(asoc_ssc_driver);
+void atmel_ssc_put_audio(int ssc_id)
+{
+ struct ssc_device *ssc = ssc_info[ssc_id].ssc;
+
+ asoc_ssc_exit(&ssc->pdev->dev);
+ ssc_free(ssc);
+}
+EXPORT_SYMBOL_GPL(atmel_ssc_put_audio);
/* Module information */
MODULE_AUTHOR("Sedji Gaouaou, sedji.gaouaou@atmel.com, www.atmel.com");
diff --git a/sound/soc/atmel/atmel_ssc_dai.h b/sound/soc/atmel/atmel_ssc_dai.h
index 5d4f0f9b4d9..b1f08d51149 100644
--- a/sound/soc/atmel/atmel_ssc_dai.h
+++ b/sound/soc/atmel/atmel_ssc_dai.h
@@ -117,6 +117,7 @@ struct atmel_ssc_info {
struct atmel_ssc_state ssc_state;
};
-int atmel_ssc_set_audio(int ssc);
+int atmel_ssc_set_audio(int ssc_id);
+void atmel_ssc_put_audio(int ssc_id);
#endif /* _AT91_SSC_DAI_H */
diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c
new file mode 100644
index 00000000000..b4e36901a40
--- /dev/null
+++ b/sound/soc/atmel/atmel_wm8904.c
@@ -0,0 +1,246 @@
+/*
+ * atmel_wm8904 - Atmel ASoC driver for boards with WM8904 codec.
+ *
+ * Copyright (C) 2012 Atmel
+ *
+ * Author: Bo Shen <voice.shen@atmel.com>
+ *
+ * GPLv2 or later
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include <sound/soc.h>
+
+#include "../codecs/wm8904.h"
+#include "atmel_ssc_dai.h"
+
+#define MCLK_RATE 32768
+
+static struct clk *mclk;
+
+static const struct snd_soc_dapm_widget atmel_asoc_wm8904_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+ SND_SOC_DAPM_LINE("Line In Jack", NULL),
+};
+
+static int atmel_asoc_wm8904_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ int ret;
+
+ ret = snd_soc_dai_set_pll(codec_dai, WM8904_FLL_MCLK, WM8904_FLL_MCLK,
+ 32768, params_rate(params) * 256);
+ if (ret < 0) {
+ pr_err("%s - failed to set wm8904 codec PLL.", __func__);
+ return ret;
+ }
+
+ /*
+ * As here wm8904 use FLL output as its system clock
+ * so calling set_sysclk won't care freq parameter
+ * then we pass 0
+ */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8904_CLK_FLL,
+ 0, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ pr_err("%s -failed to set wm8904 SYSCLK\n", __func__);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops atmel_asoc_wm8904_ops = {
+ .hw_params = atmel_asoc_wm8904_hw_params,
+};
+
+static int atmel_set_bias_level(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
+ switch (level) {
+ case SND_SOC_BIAS_PREPARE:
+ clk_prepare_enable(mclk);
+ break;
+ case SND_SOC_BIAS_OFF:
+ clk_disable_unprepare(mclk);
+ break;
+ default:
+ break;
+ }
+ }
+
+ return 0;
+};
+
+static struct snd_soc_dai_link atmel_asoc_wm8904_dailink = {
+ .name = "WM8904",
+ .stream_name = "WM8904 PCM",
+ .codec_dai_name = "wm8904-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .ops = &atmel_asoc_wm8904_ops,
+};
+
+static struct snd_soc_card atmel_asoc_wm8904_card = {
+ .name = "atmel_asoc_wm8904",
+ .owner = THIS_MODULE,
+ .set_bias_level = atmel_set_bias_level,
+ .dai_link = &atmel_asoc_wm8904_dailink,
+ .num_links = 1,
+ .dapm_widgets = atmel_asoc_wm8904_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(atmel_asoc_wm8904_dapm_widgets),
+ .fully_routed = true,
+};
+
+static int atmel_asoc_wm8904_dt_init(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *codec_np, *cpu_np;
+ struct snd_soc_card *card = &atmel_asoc_wm8904_card;
+ struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+ int ret;
+
+ if (!np) {
+ dev_err(&pdev->dev, "only device tree supported\n");
+ return -EINVAL;
+ }
+
+ ret = snd_soc_of_parse_card_name(card, "atmel,model");
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse card name\n");
+ return ret;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card, "atmel,audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse audio routing\n");
+ return ret;
+ }
+
+ cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+ if (!cpu_np) {
+ dev_err(&pdev->dev, "failed to get dai and pcm info\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ dailink->cpu_of_node = cpu_np;
+ dailink->platform_of_node = cpu_np;
+ of_node_put(cpu_np);
+
+ codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+ if (!codec_np) {
+ dev_err(&pdev->dev, "failed to get codec info\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ dailink->codec_of_node = codec_np;
+ of_node_put(codec_np);
+
+ return 0;
+}
+
+static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &atmel_asoc_wm8904_card;
+ struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+ struct clk *clk_src;
+ int id, ret;
+
+ card->dev = &pdev->dev;
+ ret = atmel_asoc_wm8904_dt_init(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to init dt info\n");
+ return ret;
+ }
+
+ id = of_alias_get_id((struct device_node *)dailink->cpu_of_node, "ssc");
+ ret = atmel_ssc_set_audio(id);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to set SSC %d for audio\n", id);
+ return ret;
+ }
+
+ mclk = clk_get(NULL, "pck0");
+ if (IS_ERR(mclk)) {
+ dev_err(&pdev->dev, "failed to get pck0\n");
+ ret = PTR_ERR(mclk);
+ goto err_set_audio;
+ }
+
+ clk_src = clk_get(NULL, "clk32k");
+ if (IS_ERR(clk_src)) {
+ dev_err(&pdev->dev, "failed to get clk32k\n");
+ ret = PTR_ERR(clk_src);
+ goto err_set_audio;
+ }
+
+ ret = clk_set_parent(mclk, clk_src);
+ clk_put(clk_src);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "failed to set MCLK parent\n");
+ goto err_set_audio;
+ }
+
+ dev_info(&pdev->dev, "setting pck0 to %dHz\n", MCLK_RATE);
+ clk_set_rate(mclk, MCLK_RATE);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed\n");
+ goto err_set_audio;
+ }
+
+ return 0;
+
+err_set_audio:
+ atmel_ssc_put_audio(id);
+ return ret;
+}
+
+static int atmel_asoc_wm8904_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+ int id;
+
+ id = of_alias_get_id((struct device_node *)dailink->cpu_of_node, "ssc");
+
+ snd_soc_unregister_card(card);
+ atmel_ssc_put_audio(id);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_asoc_wm8904_dt_ids[] = {
+ { .compatible = "atmel,asoc-wm8904", },
+ { }
+};
+#endif
+
+static struct platform_driver atmel_asoc_wm8904_driver = {
+ .driver = {
+ .name = "atmel-wm8904-audio",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(atmel_asoc_wm8904_dt_ids),
+ },
+ .probe = atmel_asoc_wm8904_probe,
+ .remove = atmel_asoc_wm8904_remove,
+};
+
+module_platform_driver(atmel_asoc_wm8904_driver);
+
+/* Module information */
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("ALSA SoC machine driver for Atmel EK with WM8904 codec");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index c88351488f4..bb1149126c5 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -37,6 +37,7 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
+#include <linux/of.h>
#include <linux/atmel-ssc.h>
@@ -47,7 +48,6 @@
#include <asm/mach-types.h>
#include <mach/hardware.h>
-#include <mach/gpio.h>
#include "../codecs/wm8731.h"
#include "atmel-pcm.h"
@@ -154,35 +154,24 @@ static int at91sam9g20ek_wm8731_init(struct snd_soc_pcm_runtime *rtd)
return ret;
}
- /* Add specific widgets */
- snd_soc_dapm_new_controls(dapm, at91sam9g20ek_dapm_widgets,
- ARRAY_SIZE(at91sam9g20ek_dapm_widgets));
- /* Set up specific audio path interconnects */
- snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
-
/* not connected */
snd_soc_dapm_nc_pin(dapm, "RLINEIN");
snd_soc_dapm_nc_pin(dapm, "LLINEIN");
-#ifdef ENABLE_MIC_INPUT
- snd_soc_dapm_enable_pin(dapm, "Int Mic");
-#else
- snd_soc_dapm_nc_pin(dapm, "Int Mic");
+#ifndef ENABLE_MIC_INPUT
+ snd_soc_dapm_nc_pin(&rtd->card->dapm, "Int Mic");
#endif
- /* always connected */
- snd_soc_dapm_enable_pin(dapm, "Ext Spk");
-
return 0;
}
static struct snd_soc_dai_link at91sam9g20ek_dai = {
.name = "WM8731",
.stream_name = "WM8731 PCM",
- .cpu_dai_name = "atmel-ssc-dai.0",
+ .cpu_dai_name = "at91rm9200_ssc.0",
.codec_dai_name = "wm8731-hifi",
.init = at91sam9g20ek_wm8731_init,
- .platform_name = "atmel-pcm-audio",
+ .platform_name = "at91rm9200_ssc.0",
.codec_name = "wm8731.0-001b",
.ops = &at91sam9g20ek_ops,
};
@@ -193,22 +182,31 @@ static struct snd_soc_card snd_soc_at91sam9g20ek = {
.dai_link = &at91sam9g20ek_dai,
.num_links = 1,
.set_bias_level = at91sam9g20ek_set_bias_level,
-};
-static struct platform_device *at91sam9g20ek_snd_device;
+ .dapm_widgets = at91sam9g20ek_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets),
+ .dapm_routes = intercon,
+ .num_dapm_routes = ARRAY_SIZE(intercon),
+};
-static int __init at91sam9g20ek_init(void)
+static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
{
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *codec_np, *cpu_np;
struct clk *pllb;
+ struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
int ret;
- if (!(machine_is_at91sam9g20ek() || machine_is_at91sam9g20ek_2mmc()))
- return -ENODEV;
+ if (!np) {
+ if (!(machine_is_at91sam9g20ek() ||
+ machine_is_at91sam9g20ek_2mmc()))
+ return -ENODEV;
+ }
ret = atmel_ssc_set_audio(0);
- if (ret != 0) {
- pr_err("Failed to set SSC 0 for audio: %d\n", ret);
- return ret;
+ if (ret) {
+ dev_err(&pdev->dev, "ssc channel is not valid\n");
+ return -EINVAL;
}
/*
@@ -236,45 +234,92 @@ static int __init at91sam9g20ek_init(void)
clk_set_rate(mclk, MCLK_RATE);
- at91sam9g20ek_snd_device = platform_device_alloc("soc-audio", -1);
- if (!at91sam9g20ek_snd_device) {
- printk(KERN_ERR "ASoC: Platform device allocation failed\n");
- ret = -ENOMEM;
- goto err_mclk;
+ card->dev = &pdev->dev;
+
+ /* Parse device node info */
+ if (np) {
+ ret = snd_soc_of_parse_card_name(card, "atmel,model");
+ if (ret)
+ goto err;
+
+ ret = snd_soc_of_parse_audio_routing(card,
+ "atmel,audio-routing");
+ if (ret)
+ goto err;
+
+ /* Parse codec info */
+ at91sam9g20ek_dai.codec_name = NULL;
+ codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+ if (!codec_np) {
+ dev_err(&pdev->dev, "codec info missing\n");
+ return -EINVAL;
+ }
+ at91sam9g20ek_dai.codec_of_node = codec_np;
+
+ /* Parse dai and platform info */
+ at91sam9g20ek_dai.cpu_dai_name = NULL;
+ at91sam9g20ek_dai.platform_name = NULL;
+ cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+ if (!cpu_np) {
+ dev_err(&pdev->dev, "dai and pcm info missing\n");
+ return -EINVAL;
+ }
+ at91sam9g20ek_dai.cpu_of_node = cpu_np;
+ at91sam9g20ek_dai.platform_of_node = cpu_np;
+
+ of_node_put(codec_np);
+ of_node_put(cpu_np);
}
- platform_set_drvdata(at91sam9g20ek_snd_device,
- &snd_soc_at91sam9g20ek);
-
- ret = platform_device_add(at91sam9g20ek_snd_device);
+ ret = snd_soc_register_card(card);
if (ret) {
- printk(KERN_ERR "ASoC: Platform device allocation failed\n");
- goto err_device_add;
+ printk(KERN_ERR "ASoC: snd_soc_register_card() failed\n");
}
return ret;
-err_device_add:
- platform_device_put(at91sam9g20ek_snd_device);
err_mclk:
clk_put(mclk);
mclk = NULL;
err:
+ atmel_ssc_put_audio(0);
return ret;
}
-static void __exit at91sam9g20ek_exit(void)
+static int at91sam9g20ek_audio_remove(struct platform_device *pdev)
{
- platform_device_unregister(at91sam9g20ek_snd_device);
- at91sam9g20ek_snd_device = NULL;
- clk_put(mclk);
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ clk_disable(mclk);
mclk = NULL;
+ snd_soc_unregister_card(card);
+ atmel_ssc_put_audio(0);
+
+ return 0;
}
-module_init(at91sam9g20ek_init);
-module_exit(at91sam9g20ek_exit);
+#ifdef CONFIG_OF
+static const struct of_device_id at91sam9g20ek_wm8731_dt_ids[] = {
+ { .compatible = "atmel,at91sam9g20ek-wm8731-audio", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, at91sam9g20ek_wm8731_dt_ids);
+#endif
+
+static struct platform_driver at91sam9g20ek_audio_driver = {
+ .driver = {
+ .name = "at91sam9g20ek-audio",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91sam9g20ek_wm8731_dt_ids),
+ },
+ .probe = at91sam9g20ek_audio_probe,
+ .remove = at91sam9g20ek_audio_remove,
+};
+
+module_platform_driver(at91sam9g20ek_audio_driver);
/* Module information */
MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
MODULE_DESCRIPTION("ALSA SoC AT91SAM9G20EK_WM8731");
+MODULE_ALIAS("platform:at91sam9g20ek-audio");
MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/sam9x5_wm8731.c b/sound/soc/atmel/sam9x5_wm8731.c
new file mode 100644
index 00000000000..3188036a18f
--- /dev/null
+++ b/sound/soc/atmel/sam9x5_wm8731.c
@@ -0,0 +1,208 @@
+/*
+ * sam9x5_wm8731 -- SoC audio for AT91SAM9X5-based boards
+ * that are using WM8731 as codec.
+ *
+ * Copyright (C) 2011 Atmel,
+ * Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ * Copyright (C) 2013 Paratronic,
+ * Richard Genoud <richard.genoud@gmail.com>
+ *
+ * Based on sam9g20_wm8731.c by:
+ * Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *
+ * 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.
+ *
+ */
+#include <linux/of.h>
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-dapm.h>
+
+#include "../codecs/wm8731.h"
+#include "atmel_ssc_dai.h"
+
+
+#define MCLK_RATE 12288000
+
+#define DRV_NAME "sam9x5-snd-wm8731"
+
+struct sam9x5_drvdata {
+ int ssc_id;
+};
+
+/*
+ * Logic for a wm8731 as connected on a at91sam9x5ek based board.
+ */
+static int sam9x5_wm8731_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct device *dev = rtd->dev;
+ int ret;
+
+ dev_dbg(dev, "ASoC: %s called\n", __func__);
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
+ MCLK_RATE, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(dev, "ASoC: Failed to set WM8731 SYSCLK: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * Audio paths on at91sam9x5ek board:
+ *
+ * |A| ------------> | | ---R----> Headphone Jack
+ * |T| <----\ | WM | ---L--/
+ * |9| ---> CLK <--> | 8731 | <--R----- Line In Jack
+ * |1| <------------ | | <--L--/
+ */
+static const struct snd_soc_dapm_widget sam9x5_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_LINE("Line In Jack", NULL),
+};
+
+static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct device_node *codec_np, *cpu_np;
+ struct snd_soc_card *card;
+ struct snd_soc_dai_link *dai;
+ struct sam9x5_drvdata *priv;
+ int ret;
+
+ if (!np) {
+ dev_err(&pdev->dev, "No device node supplied\n");
+ return -EINVAL;
+ }
+
+ card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ dai = devm_kzalloc(&pdev->dev, sizeof(*dai), GFP_KERNEL);
+ if (!dai || !card || !priv) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ snd_soc_card_set_drvdata(card, priv);
+
+ card->dev = &pdev->dev;
+ card->owner = THIS_MODULE;
+ card->dai_link = dai;
+ card->num_links = 1;
+ card->dapm_widgets = sam9x5_dapm_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(sam9x5_dapm_widgets);
+ dai->name = "WM8731";
+ dai->stream_name = "WM8731 PCM";
+ dai->codec_dai_name = "wm8731-hifi";
+ dai->init = sam9x5_wm8731_init;
+ dai->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM;
+
+ ret = snd_soc_of_parse_card_name(card, "atmel,model");
+ if (ret) {
+ dev_err(&pdev->dev, "atmel,model node missing\n");
+ goto out;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card, "atmel,audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev, "atmel,audio-routing node missing\n");
+ goto out;
+ }
+
+ codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+ if (!codec_np) {
+ dev_err(&pdev->dev, "atmel,audio-codec node missing\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ dai->codec_of_node = codec_np;
+
+ cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+ if (!cpu_np) {
+ dev_err(&pdev->dev, "atmel,ssc-controller node missing\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ dai->cpu_of_node = cpu_np;
+ dai->platform_of_node = cpu_np;
+
+ priv->ssc_id = of_alias_get_id(cpu_np, "ssc");
+
+ ret = atmel_ssc_set_audio(priv->ssc_id);
+ if (ret != 0) {
+ dev_err(&pdev->dev,
+ "ASoC: Failed to set SSC %d for audio: %d\n",
+ ret, priv->ssc_id);
+ goto out;
+ }
+
+ of_node_put(codec_np);
+ of_node_put(cpu_np);
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "ASoC: Platform device allocation failed\n");
+ goto out_put_audio;
+ }
+
+ dev_dbg(&pdev->dev, "ASoC: %s ok\n", __func__);
+
+ return ret;
+
+out_put_audio:
+ atmel_ssc_put_audio(priv->ssc_id);
+out:
+ return ret;
+}
+
+static int sam9x5_wm8731_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct sam9x5_drvdata *priv = card->drvdata;
+
+ snd_soc_unregister_card(card);
+ atmel_ssc_put_audio(priv->ssc_id);
+
+ return 0;
+}
+
+static const struct of_device_id sam9x5_wm8731_of_match[] = {
+ { .compatible = "atmel,sam9x5-wm8731-audio", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sam9x5_wm8731_of_match);
+
+static struct platform_driver sam9x5_wm8731_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(sam9x5_wm8731_of_match),
+ },
+ .probe = sam9x5_wm8731_driver_probe,
+ .remove = sam9x5_wm8731_driver_remove,
+};
+module_platform_driver(sam9x5_wm8731_driver);
+
+/* Module information */
+MODULE_AUTHOR("Nicolas Ferre <nicolas.ferre@atmel.com>");
+MODULE_AUTHOR("Richard Genoud <richard.genoud@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC machine driver for AT91SAM9x5 - WM8731");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/atmel/snd-soc-afeb9260.c b/sound/soc/atmel/snd-soc-afeb9260.c
index 4ca667d477f..9579799ace5 100644
--- a/sound/soc/atmel/snd-soc-afeb9260.c
+++ b/sound/soc/atmel/snd-soc-afeb9260.c
@@ -46,29 +46,8 @@ static int afeb9260_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int err;
- /* Set codec DAI configuration */
- err = snd_soc_dai_set_fmt(codec_dai,
- SND_SOC_DAIFMT_I2S|
- SND_SOC_DAIFMT_NB_IF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (err < 0) {
- printk(KERN_ERR "can't set codec DAI configuration\n");
- return err;
- }
-
- /* Set cpu DAI configuration */
- err = snd_soc_dai_set_fmt(cpu_dai,
- SND_SOC_DAIFMT_I2S |
- SND_SOC_DAIFMT_NB_IF |
- SND_SOC_DAIFMT_CBM_CFM);
- if (err < 0) {
- printk(KERN_ERR "can't set cpu DAI configuration\n");
- return err;
- }
-
/* Set the codec system clock for DAC and ADC */
err =
snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);
@@ -91,7 +70,7 @@ static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Mic Jack", NULL),
};
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route afeb9260_audio_map[] = {
{"Headphone Jack", NULL, "LHPOUT"},
{"Headphone Jack", NULL, "RHPOUT"},
@@ -101,24 +80,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
{"MICIN", NULL, "Mic Jack"},
};
-static int afeb9260_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_codec *codec = rtd->codec;
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- /* Add afeb9260 specific widgets */
- snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
- ARRAY_SIZE(tlv320aic23_dapm_widgets));
-
- /* Set up afeb9260 specific audio path audio_map */
- snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-
- snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
- snd_soc_dapm_enable_pin(dapm, "Line In");
- snd_soc_dapm_enable_pin(dapm, "Mic Jack");
-
- return 0;
-}
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link afeb9260_dai = {
@@ -128,7 +89,8 @@ static struct snd_soc_dai_link afeb9260_dai = {
.codec_dai_name = "tlv320aic23-hifi",
.platform_name = "atmel_pcm-audio",
.codec_name = "tlv320aic23-codec.0-001a",
- .init = afeb9260_tlv320aic23_init,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBM_CFM,
.ops = &afeb9260_ops,
};
@@ -138,6 +100,11 @@ static struct snd_soc_card snd_soc_machine_afeb9260 = {
.owner = THIS_MODULE,
.dai_link = &afeb9260_dai,
.num_links = 1,
+
+ .dapm_widgets = tlv320aic23_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
+ .dapm_routes = afeb9260_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(afeb9260_audio_map),
};
static struct platform_device *afeb9260_snd_device;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 21:51:12 +0000