# OMAP Platform Support
snd-soc-omap-objs := omap-pcm.o
snd-soc-omap-mcbsp-objs := omap-mcbsp.o
-snd-soc-omap-mcpdm-objs := omap-mcpdm.o mcpdm.o
+snd-soc-omap-mcpdm-objs := omap-mcpdm.o
snd-soc-omap-hdmi-objs := omap-hdmi.o
obj-$(CONFIG_SND_OMAP_SOC) += snd-soc-omap.o
+++ /dev/null
-/*
- * mcpdm.c -- McPDM interface driver
- *
- * Author: Jorge Eduardo Candelaria <x0107209@ti.com>
- * Copyright (C) 2009 - Texas Instruments, Inc.
- *
- * 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 <linux/init.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/wait.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/err.h>
-#include <linux/pm_runtime.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-
-#include "mcpdm.h"
-
-static struct omap_mcpdm *mcpdm;
-
-static inline void omap_mcpdm_write(u16 reg, u32 val)
-{
- __raw_writel(val, mcpdm->io_base + reg);
-}
-
-static inline int omap_mcpdm_read(u16 reg)
-{
- return __raw_readl(mcpdm->io_base + reg);
-}
-
-static void omap_mcpdm_reg_dump(void)
-{
- dev_dbg(mcpdm->dev, "***********************\n");
- dev_dbg(mcpdm->dev, "IRQSTATUS_RAW: 0x%04x\n",
- omap_mcpdm_read(MCPDM_IRQSTATUS_RAW));
- dev_dbg(mcpdm->dev, "IRQSTATUS: 0x%04x\n",
- omap_mcpdm_read(MCPDM_IRQSTATUS));
- dev_dbg(mcpdm->dev, "IRQENABLE_SET: 0x%04x\n",
- omap_mcpdm_read(MCPDM_IRQENABLE_SET));
- dev_dbg(mcpdm->dev, "IRQENABLE_CLR: 0x%04x\n",
- omap_mcpdm_read(MCPDM_IRQENABLE_CLR));
- dev_dbg(mcpdm->dev, "IRQWAKE_EN: 0x%04x\n",
- omap_mcpdm_read(MCPDM_IRQWAKE_EN));
- dev_dbg(mcpdm->dev, "DMAENABLE_SET: 0x%04x\n",
- omap_mcpdm_read(MCPDM_DMAENABLE_SET));
- dev_dbg(mcpdm->dev, "DMAENABLE_CLR: 0x%04x\n",
- omap_mcpdm_read(MCPDM_DMAENABLE_CLR));
- dev_dbg(mcpdm->dev, "DMAWAKEEN: 0x%04x\n",
- omap_mcpdm_read(MCPDM_DMAWAKEEN));
- dev_dbg(mcpdm->dev, "CTRL: 0x%04x\n",
- omap_mcpdm_read(MCPDM_CTRL));
- dev_dbg(mcpdm->dev, "DN_DATA: 0x%04x\n",
- omap_mcpdm_read(MCPDM_DN_DATA));
- dev_dbg(mcpdm->dev, "UP_DATA: 0x%04x\n",
- omap_mcpdm_read(MCPDM_UP_DATA));
- dev_dbg(mcpdm->dev, "FIFO_CTRL_DN: 0x%04x\n",
- omap_mcpdm_read(MCPDM_FIFO_CTRL_DN));
- dev_dbg(mcpdm->dev, "FIFO_CTRL_UP: 0x%04x\n",
- omap_mcpdm_read(MCPDM_FIFO_CTRL_UP));
- dev_dbg(mcpdm->dev, "DN_OFFSET: 0x%04x\n",
- omap_mcpdm_read(MCPDM_DN_OFFSET));
- dev_dbg(mcpdm->dev, "***********************\n");
-}
-
-/*
- * Takes the McPDM module in and out of reset state.
- * Uplink and downlink can be reset individually.
- */
-static void omap_mcpdm_reset_capture(int reset)
-{
- int ctrl = omap_mcpdm_read(MCPDM_CTRL);
-
- if (reset)
- ctrl |= SW_UP_RST;
- else
- ctrl &= ~SW_UP_RST;
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-}
-
-static void omap_mcpdm_reset_playback(int reset)
-{
- int ctrl = omap_mcpdm_read(MCPDM_CTRL);
-
- if (reset)
- ctrl |= SW_DN_RST;
- else
- ctrl &= ~SW_DN_RST;
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-}
-
-/*
- * Enables the transfer through the PDM interface to/from the Phoenix
- * codec by enabling the corresponding UP or DN channels.
- */
-void omap_mcpdm_start(int stream)
-{
- int ctrl = omap_mcpdm_read(MCPDM_CTRL);
-
- if (stream)
- ctrl |= mcpdm->up_channels;
- else
- ctrl |= mcpdm->dn_channels;
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-}
-
-/*
- * Disables the transfer through the PDM interface to/from the Phoenix
- * codec by disabling the corresponding UP or DN channels.
- */
-void omap_mcpdm_stop(int stream)
-{
- int ctrl = omap_mcpdm_read(MCPDM_CTRL);
-
- if (stream)
- ctrl &= ~mcpdm->up_channels;
- else
- ctrl &= ~mcpdm->dn_channels;
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-}
-
-/*
- * Configures McPDM uplink for audio recording.
- * This function should be called before omap_mcpdm_start.
- */
-int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink)
-{
- int irq_mask = 0;
- int ctrl;
-
- if (!uplink)
- return -EINVAL;
-
- mcpdm->uplink = uplink;
-
- /* Enable irq request generation */
- irq_mask |= uplink->irq_mask & MCPDM_UPLINK_IRQ_MASK;
- omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
-
- /* Configure uplink threshold */
- if (uplink->threshold > UP_THRES_MAX)
- uplink->threshold = UP_THRES_MAX;
-
- omap_mcpdm_write(MCPDM_FIFO_CTRL_UP, uplink->threshold);
-
- /* Configure DMA controller */
- omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_UP_ENABLE);
-
- /* Set pdm out format */
- ctrl = omap_mcpdm_read(MCPDM_CTRL);
- ctrl &= ~PDMOUTFORMAT;
- ctrl |= uplink->format & PDMOUTFORMAT;
-
- /* Uplink channels */
- mcpdm->up_channels = uplink->channels & (PDM_UP_MASK | PDM_STATUS_MASK);
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-
- return 0;
-}
-
-/*
- * Configures McPDM downlink for audio playback.
- * This function should be called before omap_mcpdm_start.
- */
-int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink)
-{
- int irq_mask = 0;
- int ctrl;
-
- if (!downlink)
- return -EINVAL;
-
- mcpdm->downlink = downlink;
-
- /* Enable irq request generation */
- irq_mask |= downlink->irq_mask & MCPDM_DOWNLINK_IRQ_MASK;
- omap_mcpdm_write(MCPDM_IRQENABLE_SET, irq_mask);
-
- /* Configure uplink threshold */
- if (downlink->threshold > DN_THRES_MAX)
- downlink->threshold = DN_THRES_MAX;
-
- omap_mcpdm_write(MCPDM_FIFO_CTRL_DN, downlink->threshold);
-
- /* Enable DMA request generation */
- omap_mcpdm_write(MCPDM_DMAENABLE_SET, DMA_DN_ENABLE);
-
- /* Set pdm out format */
- ctrl = omap_mcpdm_read(MCPDM_CTRL);
- ctrl &= ~PDMOUTFORMAT;
- ctrl |= downlink->format & PDMOUTFORMAT;
-
- /* Downlink channels */
- mcpdm->dn_channels = downlink->channels & (PDM_DN_MASK | PDM_CMD_MASK);
-
- omap_mcpdm_write(MCPDM_CTRL, ctrl);
-
- return 0;
-}
-
-/*
- * Cleans McPDM uplink configuration.
- * This function should be called when the stream is closed.
- */
-int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink)
-{
- int irq_mask = 0;
-
- if (!uplink)
- return -EINVAL;
-
- /* Disable irq request generation */
- irq_mask |= uplink->irq_mask & MCPDM_UPLINK_IRQ_MASK;
- omap_mcpdm_write(MCPDM_IRQENABLE_CLR, irq_mask);
-
- /* Disable DMA request generation */
- omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_UP_ENABLE);
-
- /* Clear Downlink channels */
- mcpdm->up_channels = 0;
-
- mcpdm->uplink = NULL;
-
- return 0;
-}
-
-/*
- * Cleans McPDM downlink configuration.
- * This function should be called when the stream is closed.
- */
-int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink)
-{
- int irq_mask = 0;
-
- if (!downlink)
- return -EINVAL;
-
- /* Disable irq request generation */
- irq_mask |= downlink->irq_mask & MCPDM_DOWNLINK_IRQ_MASK;
- omap_mcpdm_write(MCPDM_IRQENABLE_CLR, irq_mask);
-
- /* Disable DMA request generation */
- omap_mcpdm_write(MCPDM_DMAENABLE_CLR, DMA_DN_ENABLE);
-
- /* clear Downlink channels */
- mcpdm->dn_channels = 0;
-
- mcpdm->downlink = NULL;
-
- return 0;
-}
-
-static irqreturn_t omap_mcpdm_irq_handler(int irq, void *dev_id)
-{
- struct omap_mcpdm *mcpdm_irq = dev_id;
- int irq_status;
-
- irq_status = omap_mcpdm_read(MCPDM_IRQSTATUS);
-
- /* Acknowledge irq event */
- omap_mcpdm_write(MCPDM_IRQSTATUS, irq_status);
-
- if (irq & MCPDM_DN_IRQ_FULL) {
- dev_err(mcpdm_irq->dev, "DN FIFO error %x\n", irq_status);
- omap_mcpdm_reset_playback(1);
- omap_mcpdm_playback_open(mcpdm_irq->downlink);
- omap_mcpdm_reset_playback(0);
- }
-
- if (irq & MCPDM_DN_IRQ_EMPTY) {
- dev_err(mcpdm_irq->dev, "DN FIFO error %x\n", irq_status);
- omap_mcpdm_reset_playback(1);
- omap_mcpdm_playback_open(mcpdm_irq->downlink);
- omap_mcpdm_reset_playback(0);
- }
-
- if (irq & MCPDM_DN_IRQ) {
- dev_dbg(mcpdm_irq->dev, "DN write request\n");
- }
-
- if (irq & MCPDM_UP_IRQ_FULL) {
- dev_err(mcpdm_irq->dev, "UP FIFO error %x\n", irq_status);
- omap_mcpdm_reset_capture(1);
- omap_mcpdm_capture_open(mcpdm_irq->uplink);
- omap_mcpdm_reset_capture(0);
- }
-
- if (irq & MCPDM_UP_IRQ_EMPTY) {
- dev_err(mcpdm_irq->dev, "UP FIFO error %x\n", irq_status);
- omap_mcpdm_reset_capture(1);
- omap_mcpdm_capture_open(mcpdm_irq->uplink);
- omap_mcpdm_reset_capture(0);
- }
-
- if (irq & MCPDM_UP_IRQ) {
- dev_dbg(mcpdm_irq->dev, "UP write request\n");
- }
-
- return IRQ_HANDLED;
-}
-
- int omap_mcpdm_request(void)
-{
- int ret;
-
- pm_runtime_get_sync(mcpdm->dev);
-
- spin_lock(&mcpdm->lock);
-
- if (!mcpdm->free) {
- dev_err(mcpdm->dev, "McPDM interface is in use\n");
- spin_unlock(&mcpdm->lock);
- ret = -EBUSY;
- goto err;
- }
- mcpdm->free = 0;
-
- spin_unlock(&mcpdm->lock);
-
- /* Disable lines while request is ongoing */
- omap_mcpdm_write(MCPDM_CTRL, 0x00);
-
- ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler,
- 0, "McPDM", (void *)mcpdm);
- if (ret) {
- dev_err(mcpdm->dev, "Request for McPDM IRQ failed\n");
- goto err;
- }
-
- return 0;
-
-err:
- mcpdm->free = 1;
- pm_runtime_put_sync(mcpdm->dev);
- return ret;
-}
-
-void omap_mcpdm_free(void)
-{
- spin_lock(&mcpdm->lock);
- if (mcpdm->free) {
- dev_err(mcpdm->dev, "McPDM interface is already free\n");
- spin_unlock(&mcpdm->lock);
- return;
- }
- mcpdm->free = 1;
- spin_unlock(&mcpdm->lock);
-
- pm_runtime_put_sync(mcpdm->dev);
-
- free_irq(mcpdm->irq, (void *)mcpdm);
-}
-
-/* Enable/disable DC offset cancelation for the analog
- * headset path (PDM channels 1 and 2).
- */
-int omap_mcpdm_set_offset(int offset1, int offset2)
-{
- int offset;
-
- if ((offset1 > DN_OFST_MAX) || (offset2 > DN_OFST_MAX))
- return -EINVAL;
-
- offset = (offset1 << DN_OFST_RX1) | (offset2 << DN_OFST_RX2);
-
- /* offset cancellation for channel 1 */
- if (offset1)
- offset |= DN_OFST_RX1_EN;
- else
- offset &= ~DN_OFST_RX1_EN;
-
- /* offset cancellation for channel 2 */
- if (offset2)
- offset |= DN_OFST_RX2_EN;
- else
- offset &= ~DN_OFST_RX2_EN;
-
- omap_mcpdm_write(MCPDM_DN_OFFSET, offset);
-
- return 0;
-}
-
-int __devinit omap_mcpdm_probe(struct platform_device *pdev)
-{
- struct resource *res;
- int ret = 0;
-
- mcpdm = kzalloc(sizeof(struct omap_mcpdm), GFP_KERNEL);
- if (!mcpdm) {
- ret = -ENOMEM;
- goto exit;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no resource\n");
- goto err_resource;
- }
-
- spin_lock_init(&mcpdm->lock);
- mcpdm->free = 1;
-
- if (!request_mem_region(res->start, resource_size(res), "McPDM")) {
- ret = -EBUSY;
- goto err_resource;
- }
-
- mcpdm->io_base = ioremap(res->start, resource_size(res));
- if (!mcpdm->io_base) {
- ret = -ENOMEM;
- goto err_remap;
- }
-
- mcpdm->irq = platform_get_irq(pdev, 0);
-
- mcpdm->dev = &pdev->dev;
- platform_set_drvdata(pdev, mcpdm);
-
- pm_runtime_enable(mcpdm->dev);
-
- return 0;
-
-err_remap:
- release_mem_region(res->start, resource_size(res));
-err_resource:
- kfree(mcpdm);
-exit:
- return ret;
-}
-
-int __devexit omap_mcpdm_remove(struct platform_device *pdev)
-{
- struct omap_mcpdm *mcpdm_ptr = platform_get_drvdata(pdev);
- struct resource *res;
-
- platform_set_drvdata(pdev, NULL);
-
- pm_runtime_disable(mcpdm_ptr->dev);
-
- iounmap(mcpdm_ptr->io_base);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, resource_size(res));
-
- mcpdm_ptr->free = 0;
- mcpdm_ptr->dev = NULL;
-
- kfree(mcpdm_ptr);
-
- return 0;
-}
-
+++ /dev/null
-/*
- * mcpdm.h -- Defines for McPDM driver
- *
- * Author: Jorge Eduardo Candelaria <x0107209@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
- *
- */
-
-/* McPDM registers */
-
-#define MCPDM_REVISION 0x00
-#define MCPDM_SYSCONFIG 0x10
-#define MCPDM_IRQSTATUS_RAW 0x24
-#define MCPDM_IRQSTATUS 0x28
-#define MCPDM_IRQENABLE_SET 0x2C
-#define MCPDM_IRQENABLE_CLR 0x30
-#define MCPDM_IRQWAKE_EN 0x34
-#define MCPDM_DMAENABLE_SET 0x38
-#define MCPDM_DMAENABLE_CLR 0x3C
-#define MCPDM_DMAWAKEEN 0x40
-#define MCPDM_CTRL 0x44
-#define MCPDM_DN_DATA 0x48
-#define MCPDM_UP_DATA 0x4C
-#define MCPDM_FIFO_CTRL_DN 0x50
-#define MCPDM_FIFO_CTRL_UP 0x54
-#define MCPDM_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 DMA_DN_ENABLE 0x1
-#define DMA_UP_ENABLE 0x2
-
-/*
- * MCPDM_CTRL bit fields
- */
-
-#define PDM_UP1_EN 0x0001
-#define PDM_UP2_EN 0x0002
-#define PDM_UP3_EN 0x0004
-#define PDM_DN1_EN 0x0008
-#define PDM_DN2_EN 0x0010
-#define PDM_DN3_EN 0x0020
-#define PDM_DN4_EN 0x0040
-#define PDM_DN5_EN 0x0080
-#define PDMOUTFORMAT 0x0100
-#define CMD_INT 0x0200
-#define STATUS_INT 0x0400
-#define SW_UP_RST 0x0800
-#define SW_DN_RST 0x1000
-#define PDM_UP_MASK 0x007
-#define PDM_DN_MASK 0x0F8
-#define PDM_CMD_MASK 0x200
-#define PDM_STATUS_MASK 0x400
-
-
-#define PDMOUTFORMAT_LJUST (0 << 8)
-#define PDMOUTFORMAT_RJUST (1 << 8)
-
-/*
- * MCPDM_FIFO_CTRL bit fields
- */
-
-#define UP_THRES_MAX 0xF
-#define DN_THRES_MAX 0xF
-
-/*
- * MCPDM_DN_OFFSET bit fields
- */
-
-#define DN_OFST_RX1_EN 0x0001
-#define DN_OFST_RX2_EN 0x0100
-
-#define DN_OFST_RX1 1
-#define DN_OFST_RX2 9
-#define DN_OFST_MAX 0x1F
-
-#define MCPDM_UPLINK 1
-#define MCPDM_DOWNLINK 2
-
-struct omap_mcpdm_link {
- int irq_mask;
- int threshold;
- int format;
- int channels;
-};
-
-struct omap_mcpdm_platform_data {
- unsigned long phys_base;
- u16 irq;
-};
-
-struct omap_mcpdm {
- struct device *dev;
- unsigned long phys_base;
- void __iomem *io_base;
- u8 free;
- int irq;
-
- spinlock_t lock;
- struct omap_mcpdm_platform_data *pdata;
- struct omap_mcpdm_link *downlink;
- struct omap_mcpdm_link *uplink;
- struct completion irq_completion;
-
- int dn_channels;
- int up_channels;
-};
-
-extern void omap_mcpdm_start(int stream);
-extern void omap_mcpdm_stop(int stream);
-extern int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink);
-extern int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink);
-extern int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink);
-extern int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink);
-extern int omap_mcpdm_request(void);
-extern void omap_mcpdm_free(void);
-extern int omap_mcpdm_set_offset(int offset1, int offset2);
-int __devinit omap_mcpdm_probe(struct platform_device *pdev);
-int __devexit omap_mcpdm_remove(struct platform_device *pdev);
/*
* omap-mcpdm.c -- OMAP ALSA SoC DAI driver using McPDM port
*
- * Copyright (C) 2009 Texas Instruments
+ * Copyright (C) 2009 - 2011 Texas Instruments
*
- * Author: Misael Lopez Cruz <x0052729@ti.com>
+ * Author: Misael Lopez Cruz <misael.lopez@ti.com>
* Contact: Jorge Eduardo Candelaria <x0107209@ti.com>
* Margarita Olaya <magi.olaya@ti.com>
+ * Peter Ujfalusi <peter.ujfalusi@ti.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.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 <plat/mcbsp.h>
-#include "mcpdm.h"
+#include <plat/omap_hwmod.h>
+#include "omap-mcpdm.h"
#include "omap-pcm.h"
-struct omap_mcpdm_data {
- struct omap_mcpdm_link *links;
- int active;
-};
+struct omap_mcpdm {
+ struct device *dev;
+ unsigned long phys_base;
+ void __iomem *io_base;
+ int irq;
-static struct omap_mcpdm_link omap_mcpdm_links[] = {
- /* downlink */
- {
- .irq_mask = MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL,
- .threshold = 2,
- .format = PDMOUTFORMAT_LJUST,
- },
- /* uplink */
- {
- .irq_mask = MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL,
- .threshold = UP_THRES_MAX - 3,
- .format = PDMOUTFORMAT_LJUST,
- },
-};
+ struct mutex mutex;
+
+ /* channel data */
+ u32 dn_channels;
+ u32 up_channels;
-static struct omap_mcpdm_data mcpdm_data = {
- .links = omap_mcpdm_links,
- .active = 0,
+ /* McPDM FIFO thresholds */
+ u32 dn_threshold;
+ u32 up_threshold;
};
/*
.dma_req = OMAP44XX_DMA_MCPDM_DL,
.data_type = OMAP_DMA_DATA_TYPE_S32,
.sync_mode = OMAP_DMA_SYNC_PACKET,
- .packet_size = 16,
- .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_DN_DATA,
+ .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_REG_DN_DATA,
},
{
.name = "Audio capture",
.dma_req = OMAP44XX_DMA_MCPDM_UP,
.data_type = OMAP_DMA_DATA_TYPE_S32,
.sync_mode = OMAP_DMA_SYNC_PACKET,
- .packet_size = 16,
- .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_UP_DATA,
+ .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_REG_UP_DATA,
},
};
-static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
+static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val)
{
- int err = 0;
+ __raw_writel(val, mcpdm->io_base + reg);
+}
- if (!dai->active)
- err = omap_mcpdm_request();
+static inline int omap_mcpdm_read(struct omap_mcpdm *mcpdm, u16 reg)
+{
+ return __raw_readl(mcpdm->io_base + reg);
+}
- return err;
+#ifdef DEBUG
+static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm)
+{
+ dev_dbg(mcpdm->dev, "***********************\n");
+ dev_dbg(mcpdm->dev, "IRQSTATUS_RAW: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS_RAW));
+ dev_dbg(mcpdm->dev, "IRQSTATUS: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS));
+ dev_dbg(mcpdm->dev, "IRQENABLE_SET: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_IRQENABLE_SET));
+ dev_dbg(mcpdm->dev, "IRQENABLE_CLR: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_IRQENABLE_CLR));
+ dev_dbg(mcpdm->dev, "IRQWAKE_EN: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_IRQWAKE_EN));
+ dev_dbg(mcpdm->dev, "DMAENABLE_SET: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_DMAENABLE_SET));
+ dev_dbg(mcpdm->dev, "DMAENABLE_CLR: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_DMAENABLE_CLR));
+ dev_dbg(mcpdm->dev, "DMAWAKEEN: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_DMAWAKEEN));
+ dev_dbg(mcpdm->dev, "CTRL: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL));
+ dev_dbg(mcpdm->dev, "DN_DATA: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_DN_DATA));
+ dev_dbg(mcpdm->dev, "UP_DATA: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_UP_DATA));
+ dev_dbg(mcpdm->dev, "FIFO_CTRL_DN: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_FIFO_CTRL_DN));
+ dev_dbg(mcpdm->dev, "FIFO_CTRL_UP: 0x%04x\n",
+ omap_mcpdm_read(mcpdm, MCPDM_REG_FIFO_CTRL_UP));
+ dev_dbg(mcpdm->dev, "***********************\n");
}
+#else
+static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm) {}
+#endif
-static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
+/*
+ * Enables the transfer through the PDM interface to/from the Phoenix
+ * codec by enabling the corresponding UP or DN channels.
+ */
+static void omap_mcpdm_start(struct omap_mcpdm *mcpdm)
+{
+ u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+
+ ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+
+ ctrl |= mcpdm->dn_channels | mcpdm->up_channels;
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+
+ ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+}
+
+/*
+ * Disables the transfer through the PDM interface to/from the Phoenix
+ * codec by disabling the corresponding UP or DN channels.
+ */
+static void omap_mcpdm_stop(struct omap_mcpdm *mcpdm)
+{
+ u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+
+ ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+
+ ctrl &= ~(mcpdm->dn_channels | mcpdm->up_channels);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+
+ ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
+
+}
+
+/*
+ * Is the physical McPDM interface active.
+ */
+static inline int omap_mcpdm_active(struct omap_mcpdm *mcpdm)
+{
+ return omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL) &
+ (MCPDM_PDM_DN_MASK | MCPDM_PDM_UP_MASK);
+}
+
+/*
+ * Configures McPDM uplink, and downlink for audio.
+ * This function should be called before omap_mcpdm_start.
+ */
+static void omap_mcpdm_open_streams(struct omap_mcpdm *mcpdm)
+{
+ omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_SET,
+ MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL |
+ MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL);
+
+ omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN, mcpdm->dn_threshold);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP, mcpdm->up_threshold);
+
+ omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_SET,
+ MCPDM_DMA_DN_ENABLE | MCPDM_DMA_UP_ENABLE);
+}
+
+/*
+ * Cleans McPDM uplink, and downlink configuration.
+ * This function should be called when the stream is closed.
+ */
+static void omap_mcpdm_close_streams(struct omap_mcpdm *mcpdm)
{
- if (!dai->active)
- omap_mcpdm_free();
+ /* Disable irq request generation for downlink */
+ omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_CLR,
+ MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL);
+
+ /* Disable DMA request generation for downlink */
+ omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_CLR, MCPDM_DMA_DN_ENABLE);
+
+ /* Disable irq request generation for uplink */
+ omap_mcpdm_write(mcpdm, MCPDM_REG_IRQENABLE_CLR,
+ MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL);
+
+ /* Disable DMA request generation for uplink */
+ omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_CLR, MCPDM_DMA_UP_ENABLE);
+}
+
+static irqreturn_t omap_mcpdm_irq_handler(int irq, void *dev_id)
+{
+ struct omap_mcpdm *mcpdm = dev_id;
+ int irq_status;
+
+ irq_status = omap_mcpdm_read(mcpdm, MCPDM_REG_IRQSTATUS);
+
+ /* Acknowledge irq event */
+ omap_mcpdm_write(mcpdm, MCPDM_REG_IRQSTATUS, irq_status);
+
+ if (irq_status & MCPDM_DN_IRQ_FULL)
+ dev_dbg(mcpdm->dev, "DN (playback) FIFO Full\n");
+
+ if (irq_status & MCPDM_DN_IRQ_EMPTY)
+ dev_dbg(mcpdm->dev, "DN (playback) FIFO Empty\n");
+
+ if (irq_status & MCPDM_DN_IRQ)
+ dev_dbg(mcpdm->dev, "DN (playback) write request\n");
+
+ if (irq_status & MCPDM_UP_IRQ_FULL)
+ dev_dbg(mcpdm->dev, "UP (capture) FIFO Full\n");
+
+ if (irq_status & MCPDM_UP_IRQ_EMPTY)
+ dev_dbg(mcpdm->dev, "UP (capture) FIFO Empty\n");
+
+ if (irq_status & MCPDM_UP_IRQ)
+ dev_dbg(mcpdm->dev, "UP (capture) write request\n");
+
+ return IRQ_HANDLED;
}
-static int omap_mcpdm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai);
- int stream = substream->stream;
- int err = 0;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- case SNDRV_PCM_TRIGGER_RESUME:
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- if (!mcpdm_priv->active++)
- omap_mcpdm_start(stream);
- break;
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- if (!--mcpdm_priv->active)
- omap_mcpdm_stop(stream);
- break;
- default:
- err = -EINVAL;
+ mutex_lock(&mcpdm->mutex);
+
+ if (!dai->active) {
+ pm_runtime_get_sync(mcpdm->dev);
+
+ /* Enable watch dog for ES above ES 1.0 to avoid saturation */
+ if (omap_rev() != OMAP4430_REV_ES1_0) {
+ u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL,
+ ctrl | MCPDM_WD_EN);
+ }
+ omap_mcpdm_open_streams(mcpdm);
}
- return err;
+ mutex_unlock(&mcpdm->mutex);
+
+ return 0;
+}
+
+static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
+
+ mutex_lock(&mcpdm->mutex);
+
+ if (!dai->active) {
+ if (omap_mcpdm_active(mcpdm)) {
+ omap_mcpdm_stop(mcpdm);
+ omap_mcpdm_close_streams(mcpdm);
+ }
+
+ if (!omap_mcpdm_active(mcpdm))
+ pm_runtime_put_sync(mcpdm->dev);
+ }
+
+ mutex_unlock(&mcpdm->mutex);
}
static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai);
- struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
- struct omap_pcm_dma_data *dma_data;
- int threshold;
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
int stream = substream->stream;
- int channels, err, link_mask = 0;
+ struct omap_pcm_dma_data *dma_data;
+ int channels;
+ int link_mask = 0;
channels = params_channels(params);
switch (channels) {
}
dma_data = &omap_mcpdm_dai_dma_params[stream];
- threshold = mcpdm_links[stream].threshold;
+ /* Configure McPDM channels, and DMA packet size */
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
- mcpdm_links[stream].channels = link_mask << 3;
- dma_data->packet_size = (DN_THRES_MAX - threshold) * channels;
-
- err = omap_mcpdm_playback_open(&mcpdm_links[stream]);
+ mcpdm->dn_channels = link_mask << 3;
+ dma_data->packet_size =
+ (MCPDM_DN_THRES_MAX - mcpdm->dn_threshold) * channels;
} else {
- mcpdm_links[stream].channels = link_mask << 0;
- dma_data->packet_size = threshold * channels;
-
- err = omap_mcpdm_capture_open(&mcpdm_links[stream]);
+ mcpdm->up_channels = link_mask << 0;
+ dma_data->packet_size = mcpdm->up_threshold * channels;
}
snd_soc_dai_set_dma_data(dai, substream, dma_data);
- return err;
+
+ return 0;
}
-static int omap_mcpdm_dai_hw_free(struct snd_pcm_substream *substream,
+static int omap_mcpdm_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai);
- struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
- int stream = substream->stream;
- int err;
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- err = omap_mcpdm_playback_close(&mcpdm_links[stream]);
- else
- err = omap_mcpdm_capture_close(&mcpdm_links[stream]);
+ if (!omap_mcpdm_active(mcpdm)) {
+ omap_mcpdm_start(mcpdm);
+ omap_mcpdm_reg_dump(mcpdm);
+ }
- return err;
+ return 0;
}
static struct snd_soc_dai_ops omap_mcpdm_dai_ops = {
.startup = omap_mcpdm_dai_startup,
.shutdown = omap_mcpdm_dai_shutdown,
- .trigger = omap_mcpdm_dai_trigger,
.hw_params = omap_mcpdm_dai_hw_params,
- .hw_free = omap_mcpdm_dai_hw_free,
+ .prepare = omap_mcpdm_prepare,
};
-#define OMAP_MCPDM_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
-#define OMAP_MCPDM_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
+static int omap_mcpdm_probe(struct snd_soc_dai *dai)
+{
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
+ int ret;
+
+ pm_runtime_enable(mcpdm->dev);
+
+ /* Disable lines while request is ongoing */
+ pm_runtime_get_sync(mcpdm->dev);
+ omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, 0x00);
+
+ ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler,
+ 0, "McPDM", (void *)mcpdm);
-static int omap_mcpdm_dai_probe(struct snd_soc_dai *dai)
+ pm_runtime_put_sync(mcpdm->dev);
+
+ if (ret) {
+ dev_err(mcpdm->dev, "Request for IRQ failed\n");
+ pm_runtime_disable(mcpdm->dev);
+ }
+
+ /* Configure McPDM threshold values */
+ mcpdm->dn_threshold = 2;
+ mcpdm->up_threshold = MCPDM_UP_THRES_MAX - 3;
+ return ret;
+}
+
+static int omap_mcpdm_remove(struct snd_soc_dai *dai)
{
- snd_soc_dai_set_drvdata(dai, &mcpdm_data);
+ struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
+
+ free_irq(mcpdm->irq, (void *)mcpdm);
+ pm_runtime_disable(mcpdm->dev);
+
return 0;
}
+#define OMAP_MCPDM_RATES (SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+#define OMAP_MCPDM_FORMATS SNDRV_PCM_FMTBIT_S32_LE
+
static struct snd_soc_dai_driver omap_mcpdm_dai = {
- .probe = omap_mcpdm_dai_probe,
+ .probe = omap_mcpdm_probe,
+ .remove = omap_mcpdm_remove,
+ .probe_order = SND_SOC_COMP_ORDER_LATE,
+ .remove_order = SND_SOC_COMP_ORDER_EARLY,
.playback = {
.channels_min = 1,
.channels_max = 4,
static __devinit int asoc_mcpdm_probe(struct platform_device *pdev)
{
- int ret;
+ struct omap_mcpdm *mcpdm;
+ struct resource *res;
+ int ret = 0;
+
+ mcpdm = kzalloc(sizeof(struct omap_mcpdm), GFP_KERNEL);
+ if (!mcpdm)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, mcpdm);
+
+ mutex_init(&mcpdm->mutex);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no resource\n");
+ goto err_res;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res), "McPDM")) {
+ ret = -EBUSY;
+ goto err_res;
+ }
+
+ mcpdm->io_base = ioremap(res->start, resource_size(res));
+ if (!mcpdm->io_base) {
+ ret = -ENOMEM;
+ goto err_iomap;
+ }
+
+ mcpdm->irq = platform_get_irq(pdev, 0);
+ if (mcpdm->irq < 0) {
+ ret = mcpdm->irq;
+ goto err_irq;
+ }
+
+ mcpdm->dev = &pdev->dev;
- ret = omap_mcpdm_probe(pdev);
- if (ret < 0)
- return ret;
ret = snd_soc_register_dai(&pdev->dev, &omap_mcpdm_dai);
- if (ret < 0)
- omap_mcpdm_remove(pdev);
+ if (!ret)
+ return 0;
+
+err_irq:
+ iounmap(mcpdm->io_base);
+err_iomap:
+ release_mem_region(res->start, resource_size(res));
+err_res:
+ kfree(mcpdm);
return ret;
}
static int __devexit asoc_mcpdm_remove(struct platform_device *pdev)
{
+ struct omap_mcpdm *mcpdm = platform_get_drvdata(pdev);
+ struct resource *res;
+
snd_soc_unregister_dai(&pdev->dev);
- omap_mcpdm_remove(pdev);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ iounmap(mcpdm->io_base);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(mcpdm);
return 0;
}
static struct platform_driver asoc_mcpdm_driver = {
.driver = {
- .name = "omap-mcpdm",
- .owner = THIS_MODULE,
+ .name = "omap-mcpdm",
+ .owner = THIS_MODULE,
},
- .probe = asoc_mcpdm_probe,
- .remove = __devexit_p(asoc_mcpdm_remove),
+ .probe = asoc_mcpdm_probe,
+ .remove = __devexit_p(asoc_mcpdm_remove),
};
static int __init snd_omap_mcpdm_init(void)
}
module_exit(snd_omap_mcpdm_exit);
-MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
+MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
MODULE_DESCRIPTION("OMAP PDM SoC Interface");
MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * 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
+
+#endif /* End of __OMAP_MCPDM_H__ */
#include <plat/hardware.h>
#include <plat/mux.h>
-#include "mcpdm.h"
+#include "omap-mcpdm.h"
#include "omap-pcm.h"
#include "../codecs/twl6040.h"
projects / deliverable / linux.git / commitdiff
