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-rw-r--r--sound/soc/omap/omap-hdmi.c158
-rw-r--r--sound/soc/omap/omap-hdmi.h36
-rw-r--r--sound/soc/omap/omap-mcpdm.h107
-rw-r--r--sound/soc/omap/omap4-hdmi-card.c130
4 files changed, 431 insertions, 0 deletions
diff --git a/sound/soc/omap/omap-hdmi.c b/sound/soc/omap/omap-hdmi.c
new file mode 100644
index 0000000..36c6eae
--- /dev/null
+++ b/sound/soc/omap/omap-hdmi.c
@@ -0,0 +1,158 @@
+/*
+ * omap-hdmi.c
+ *
+ * OMAP ALSA SoC DAI driver for HDMI audio on OMAP4 processors.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Jorge Candelaria <jorge.candelaria@ti.com>
+ * Ricardo Neri <ricardo.neri@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <plat/dma.h>
+#include "omap-pcm.h"
+#include "omap-hdmi.h"
+
+#define DRV_NAME "hdmi-audio-dai"
+
+static struct omap_pcm_dma_data omap_hdmi_dai_dma_params = {
+ .name = "HDMI playback",
+ .sync_mode = OMAP_DMA_SYNC_PACKET,
+};
+
+static int omap_hdmi_dai_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ int err;
+ /*
+ * Make sure that the period bytes are multiple of the DMA packet size.
+ * Largest packet size we use is 32 32-bit words = 128 bytes
+ */
+ err = snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 128);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int omap_hdmi_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ int err = 0;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ omap_hdmi_dai_dma_params.packet_size = 16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ omap_hdmi_dai_dma_params.packet_size = 32;
+ break;
+ default:
+ err = -EINVAL;
+ }
+
+ omap_hdmi_dai_dma_params.data_type = OMAP_DMA_DATA_TYPE_S32;
+
+ snd_soc_dai_set_dma_data(dai, substream,
+ &omap_hdmi_dai_dma_params);
+
+ return err;
+}
+
+static struct snd_soc_dai_ops omap_hdmi_dai_ops = {
+ .startup = omap_hdmi_dai_startup,
+ .hw_params = omap_hdmi_dai_hw_params,
+};
+
+static struct snd_soc_dai_driver omap_hdmi_dai = {
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = OMAP_HDMI_RATES,
+ .formats = OMAP_HDMI_FORMATS,
+ },
+ .ops = &omap_hdmi_dai_ops,
+};
+
+static __devinit int omap_hdmi_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct resource *hdmi_rsrc;
+
+ hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!hdmi_rsrc) {
+ dev_err(&pdev->dev, "Cannot obtain IORESOURCE_MEM HDMI\n");
+ return -EINVAL;
+ }
+
+ omap_hdmi_dai_dma_params.port_addr = hdmi_rsrc->start
+ + OMAP_HDMI_AUDIO_DMA_PORT;
+
+ hdmi_rsrc = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!hdmi_rsrc) {
+ dev_err(&pdev->dev, "Cannot obtain IORESOURCE_DMA HDMI\n");
+ return -EINVAL;
+ }
+
+ omap_hdmi_dai_dma_params.dma_req = hdmi_rsrc->start;
+
+ ret = snd_soc_register_dai(&pdev->dev, &omap_hdmi_dai);
+ return ret;
+}
+
+static int __devexit omap_hdmi_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_dai(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver hdmi_dai_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = omap_hdmi_probe,
+ .remove = __devexit_p(omap_hdmi_remove),
+};
+
+static int __init hdmi_dai_init(void)
+{
+ return platform_driver_register(&hdmi_dai_driver);
+}
+module_init(hdmi_dai_init);
+
+static void __exit hdmi_dai_exit(void)
+{
+ platform_driver_unregister(&hdmi_dai_driver);
+}
+module_exit(hdmi_dai_exit);
+
+MODULE_AUTHOR("Jorge Candelaria <jorge.candelaria@ti.com>");
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("OMAP HDMI SoC Interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/omap/omap-hdmi.h b/sound/soc/omap/omap-hdmi.h
new file mode 100644
index 0000000..34c298d
--- /dev/null
+++ b/sound/soc/omap/omap-hdmi.h
@@ -0,0 +1,36 @@
+/*
+ * omap-hdmi.h
+ *
+ * Definitions for OMAP ALSA SoC DAI driver for HDMI audio on OMAP4 processors.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Jorge Candelaria <jorge.candelaria@ti.com>
+ * Ricardo Neri <ricardo.neri@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __OMAP_HDMI_H__
+#define __OMAP_HDMI_H__
+
+#define OMAP_HDMI_AUDIO_DMA_PORT 0x8c
+
+#define OMAP_HDMI_RATES (SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
+
+#define OMAP_HDMI_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+#endif
diff --git a/sound/soc/omap/omap-mcpdm.h b/sound/soc/omap/omap-mcpdm.h
new file mode 100644
index 0000000..de8cf26
--- /dev/null
+++ b/sound/soc/omap/omap-mcpdm.h
@@ -0,0 +1,107 @@
+/*
+ * omap-mcpdm.h
+ *
+ * Copyright (C) 2009 - 2011 Texas Instruments
+ *
+ * Contact: Misael Lopez Cruz <misael.lopez@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __OMAP_MCPDM_H__
+#define __OMAP_MCPDM_H__
+
+#define MCPDM_REG_REVISION 0x00
+#define MCPDM_REG_SYSCONFIG 0x10
+#define MCPDM_REG_IRQSTATUS_RAW 0x24
+#define MCPDM_REG_IRQSTATUS 0x28
+#define MCPDM_REG_IRQENABLE_SET 0x2C
+#define MCPDM_REG_IRQENABLE_CLR 0x30
+#define MCPDM_REG_IRQWAKE_EN 0x34
+#define MCPDM_REG_DMAENABLE_SET 0x38
+#define MCPDM_REG_DMAENABLE_CLR 0x3C
+#define MCPDM_REG_DMAWAKEEN 0x40
+#define MCPDM_REG_CTRL 0x44
+#define MCPDM_REG_DN_DATA 0x48
+#define MCPDM_REG_UP_DATA 0x4C
+#define MCPDM_REG_FIFO_CTRL_DN 0x50
+#define MCPDM_REG_FIFO_CTRL_UP 0x54
+#define MCPDM_REG_DN_OFFSET 0x58
+
+/*
+ * MCPDM_IRQ bit fields
+ * IRQSTATUS_RAW, IRQSTATUS, IRQENABLE_SET, IRQENABLE_CLR
+ */
+
+#define MCPDM_DN_IRQ (1 << 0)
+#define MCPDM_DN_IRQ_EMPTY (1 << 1)
+#define MCPDM_DN_IRQ_ALMST_EMPTY (1 << 2)
+#define MCPDM_DN_IRQ_FULL (1 << 3)
+
+#define MCPDM_UP_IRQ (1 << 8)
+#define MCPDM_UP_IRQ_EMPTY (1 << 9)
+#define MCPDM_UP_IRQ_ALMST_FULL (1 << 10)
+#define MCPDM_UP_IRQ_FULL (1 << 11)
+
+#define MCPDM_DOWNLINK_IRQ_MASK 0x00F
+#define MCPDM_UPLINK_IRQ_MASK 0xF00
+
+/*
+ * MCPDM_DMAENABLE bit fields
+ */
+
+#define MCPDM_DMA_DN_ENABLE (1 << 0)
+#define MCPDM_DMA_UP_ENABLE (1 << 1)
+
+/*
+ * MCPDM_CTRL bit fields
+ */
+
+#define MCPDM_PDM_UPLINK_EN(x) (1 << (x - 1)) /* ch1 is at bit 0 */
+#define MCPDM_PDM_DOWNLINK_EN(x) (1 << (x + 2)) /* ch1 is at bit 3 */
+#define MCPDM_PDMOUTFORMAT (1 << 8)
+#define MCPDM_CMD_INT (1 << 9)
+#define MCPDM_STATUS_INT (1 << 10)
+#define MCPDM_SW_UP_RST (1 << 11)
+#define MCPDM_SW_DN_RST (1 << 12)
+#define MCPDM_WD_EN (1 << 14)
+#define MCPDM_PDM_UP_MASK 0x7
+#define MCPDM_PDM_DN_MASK (0x1f << 3)
+
+
+#define MCPDM_PDMOUTFORMAT_LJUST (0 << 8)
+#define MCPDM_PDMOUTFORMAT_RJUST (1 << 8)
+
+/*
+ * MCPDM_FIFO_CTRL bit fields
+ */
+
+#define MCPDM_UP_THRES_MAX 0xF
+#define MCPDM_DN_THRES_MAX 0xF
+
+/*
+ * MCPDM_DN_OFFSET bit fields
+ */
+
+#define MCPDM_DN_OFST_RX1_EN (1 << 0)
+#define MCPDM_DNOFST_RX1(x) ((x & 0x1f) << 1)
+#define MCPDM_DN_OFST_RX2_EN (1 << 8)
+#define MCPDM_DNOFST_RX2(x) ((x & 0x1f) << 9)
+
+void omap_mcpdm_configure_dn_offsets(struct snd_soc_pcm_runtime *rtd,
+ u8 rx1, u8 rx2);
+
+#endif /* End of __OMAP_MCPDM_H__ */
diff --git a/sound/soc/omap/omap4-hdmi-card.c b/sound/soc/omap/omap4-hdmi-card.c
new file mode 100644
index 0000000..8671261
--- /dev/null
+++ b/sound/soc/omap/omap4-hdmi-card.c
@@ -0,0 +1,130 @@
+/*
+ * omap4-hdmi-card.c
+ *
+ * OMAP ALSA SoC machine driver for TI OMAP4 HDMI
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Ricardo Neri <ricardo.neri@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+#include <video/omapdss.h>
+
+#define DRV_NAME "omap4-hdmi-audio"
+
+static int omap4_hdmi_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ int i;
+ struct omap_overlay_manager *mgr = NULL;
+ struct device *dev = substream->pcm->card->dev;
+
+ /* Find DSS HDMI device */
+ for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
+ mgr = omap_dss_get_overlay_manager(i);
+ if (mgr && mgr->device
+ && mgr->device->type == OMAP_DISPLAY_TYPE_HDMI)
+ break;
+ }
+
+ if (i == omap_dss_get_num_overlay_managers()) {
+ dev_err(dev, "HDMI display device not found!\n");
+ return -ENODEV;
+ }
+
+ /* Make sure HDMI is power-on to avoid L3 interconnect errors */
+ if (mgr->device->state != OMAP_DSS_DISPLAY_ACTIVE) {
+ dev_err(dev, "HDMI display is not active!\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_ops omap4_hdmi_dai_ops = {
+ .hw_params = omap4_hdmi_dai_hw_params,
+};
+
+static struct snd_soc_dai_link omap4_hdmi_dai = {
+ .name = "HDMI",
+ .stream_name = "HDMI",
+ .cpu_dai_name = "hdmi-audio-dai",
+ .platform_name = "omap-pcm-audio",
+ .codec_name = "omapdss_hdmi",
+ .codec_dai_name = "hdmi-audio-codec",
+ .ops = &omap4_hdmi_dai_ops,
+};
+
+static struct snd_soc_card snd_soc_omap4_hdmi = {
+ .name = "OMAP4HDMI",
+ .dai_link = &omap4_hdmi_dai,
+ .num_links = 1,
+};
+
+static __devinit int omap4_hdmi_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_omap4_hdmi;
+ int ret;
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+ card->dev = NULL;
+ return ret;
+ }
+ return 0;
+}
+
+static int __devexit omap4_hdmi_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ card->dev = NULL;
+ return 0;
+}
+
+static struct platform_driver omap4_hdmi_driver = {
+ .driver = {
+ .name = "omap4-hdmi-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = omap4_hdmi_probe,
+ .remove = __devexit_p(omap4_hdmi_remove),
+};
+
+static int __init omap4_hdmi_init(void)
+{
+ return platform_driver_register(&omap4_hdmi_driver);
+}
+module_init(omap4_hdmi_init);
+
+static void __exit omap4_hdmi_exit(void)
+{
+ platform_driver_unregister(&omap4_hdmi_driver);
+}
+module_exit(omap4_hdmi_exit);
+
+MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
+MODULE_DESCRIPTION("OMAP4 HDMI machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
generated by cgit v1.1 at 2024-05-29 05:08:39 +0000