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Commit fadd81b5 authored by Mark Brown's avatar Mark Brown
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Merge branch 'peter/topic/for-mark/mcpdm_for-3.2' of... 

Merge branch 'peter/topic/for-mark/mcpdm_for-3.2' of git://gitorious.org/omap-audio/linux-audio into for-3.2
parents 8af08945 f5f9d7bf
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Showing with 472 additions and 765 deletions
arch/arm/mach-omap2/devices.c
View file @ fadd81b5
...@@ -330,6 +330,38 @@ static void omap_init_audio(void) ...@@ -330,6 +330,38 @@ static void omap_init_audio(void)
static inline void omap_init_audio(void) {} static inline void omap_init_audio(void) {}
#endif #endif
#if defined(CONFIG_SND_OMAP_SOC_MCPDM) || \
defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)
static struct omap_device_pm_latency omap_mcpdm_latency[] = {
{
.deactivate_func = omap_device_idle_hwmods,
.activate_func = omap_device_enable_hwmods,
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
},
};
static void omap_init_mcpdm(void)
{
struct omap_hwmod *oh;
struct omap_device *od;
oh = omap_hwmod_lookup("mcpdm");
if (!oh) {
printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
return;
}
od = omap_device_build("omap-mcpdm", -1, oh, NULL, 0,
omap_mcpdm_latency,
ARRAY_SIZE(omap_mcpdm_latency), 0);
if (IS_ERR(od))
printk(KERN_ERR "Could not build omap_device for omap-mcpdm-dai\n");
}
#else
static inline void omap_init_mcpdm(void) {}
#endif
#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE) #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
#include <plat/mcspi.h> #include <plat/mcspi.h>
...@@ -683,6 +715,7 @@ static int __init omap2_init_devices(void) ...@@ -683,6 +715,7 @@ static int __init omap2_init_devices(void)
* in alphabetical order so they're easier to sort through. * in alphabetical order so they're easier to sort through.
*/ */
omap_init_audio(); omap_init_audio();
omap_init_mcpdm();
omap_init_camera(); omap_init_camera();
omap_init_mbox(); omap_init_mbox();
omap_init_mcspi(); omap_init_mcspi();
......
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View file @ fadd81b5
...@@ -5430,7 +5430,7 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = { ...@@ -5430,7 +5430,7 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
&omap44xx_mcbsp4_hwmod, &omap44xx_mcbsp4_hwmod,
/* mcpdm class */ /* mcpdm class */
/* &omap44xx_mcpdm_hwmod, */ &omap44xx_mcpdm_hwmod,
/* mcspi class */ /* mcspi class */
&omap44xx_mcspi1_hwmod, &omap44xx_mcspi1_hwmod,
......
arch/arm/plat-omap/devices.c
View file @ fadd81b5
...@@ -74,41 +74,6 @@ void omap_mcbsp_register_board_cfg(struct resource *res, int res_count, ...@@ -74,41 +74,6 @@ void omap_mcbsp_register_board_cfg(struct resource *res, int res_count,
/*-------------------------------------------------------------------------*/ /*-------------------------------------------------------------------------*/
#if defined(CONFIG_SND_OMAP_SOC_MCPDM) || \
defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)
static struct resource mcpdm_resources[] = {
{
.name = "mcpdm_mem",
.start = OMAP44XX_MCPDM_BASE,
.end = OMAP44XX_MCPDM_BASE + SZ_4K,
.flags = IORESOURCE_MEM,
},
{
.name = "mcpdm_irq",
.start = OMAP44XX_IRQ_MCPDM,
.end = OMAP44XX_IRQ_MCPDM,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device omap_mcpdm_device = {
.name = "omap-mcpdm",
.id = -1,
.num_resources = ARRAY_SIZE(mcpdm_resources),
.resource = mcpdm_resources,
};
static void omap_init_mcpdm(void)
{
(void) platform_device_register(&omap_mcpdm_device);
}
#else
static inline void omap_init_mcpdm(void) {}
#endif
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
...@@ -291,7 +256,6 @@ static int __init omap_init_devices(void) ...@@ -291,7 +256,6 @@ static int __init omap_init_devices(void)
* in alphabetical order so they're easier to sort through. * in alphabetical order so they're easier to sort through.
*/ */
omap_init_rng(); omap_init_rng();
omap_init_mcpdm();
omap_init_uwire(); omap_init_uwire();
return 0; return 0;
} }
......
sound/soc/omap/Makefile
View file @ fadd81b5
# OMAP Platform Support # OMAP Platform Support
snd-soc-omap-objs := omap-pcm.o snd-soc-omap-objs := omap-pcm.o
snd-soc-omap-mcbsp-objs := omap-mcbsp.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 snd-soc-omap-hdmi-objs := omap-hdmi.o
obj-$(CONFIG_SND_OMAP_SOC) += snd-soc-omap.o obj-$(CONFIG_SND_OMAP_SOC) += snd-soc-omap.o
......
sound/soc/omap/mcpdm.c deleted 100644 → 0
View file @ 8af08945
/*
* 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/clk.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;
clk_enable(mcpdm->clk);
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:
clk_disable(mcpdm->clk);
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);
clk_disable(mcpdm->clk);
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;
mcpdm->io_base = ioremap(res->start, resource_size(res));
if (!mcpdm->io_base) {
ret = -ENOMEM;
goto err_resource;
}
mcpdm->irq = platform_get_irq(pdev, 0);
mcpdm->clk = clk_get(&pdev->dev, "pdm_ck");
if (IS_ERR(mcpdm->clk)) {
ret = PTR_ERR(mcpdm->clk);
dev_err(&pdev->dev, "unable to get pdm_ck: %d\n", ret);
goto err_clk;
}
mcpdm->dev = &pdev->dev;
platform_set_drvdata(pdev, mcpdm);
return 0;
err_clk:
iounmap(mcpdm->io_base);
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);
platform_set_drvdata(pdev, NULL);
clk_put(mcpdm_ptr->clk);
iounmap(mcpdm_ptr->io_base);
mcpdm_ptr->clk = NULL;
mcpdm_ptr->free = 0;
mcpdm_ptr->dev = NULL;
kfree(mcpdm_ptr);
return 0;
}
sound/soc/omap/mcpdm.h deleted 100644 → 0
View file @ 8af08945
/*
* 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 clk *clk;
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);
sound/soc/omap/omap-mcpdm.c
View file @ fadd81b5
/* /*
* omap-mcpdm.c -- OMAP ALSA SoC DAI driver using McPDM port * 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> * Contact: Jorge Eduardo Candelaria <x0107209@ti.com>
* Margarita Olaya <magi.olaya@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 * This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License * modify it under the terms of the GNU General Public License
...@@ -25,41 +26,39 @@ ...@@ -25,41 +26,39 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/module.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/core.h>
#include <sound/pcm.h> #include <sound/pcm.h>
#include <sound/pcm_params.h> #include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h> #include <sound/soc.h>
#include <plat/dma.h> #include <plat/dma.h>
#include <plat/mcbsp.h> #include <plat/omap_hwmod.h>
#include "mcpdm.h" #include "omap-mcpdm.h"
#include "omap-pcm.h" #include "omap-pcm.h"
struct omap_mcpdm_data { struct omap_mcpdm {
struct omap_mcpdm_link *links; struct device *dev;
int active; unsigned long phys_base;
}; void __iomem *io_base;
int irq;
static struct omap_mcpdm_link omap_mcpdm_links[] = { struct mutex mutex;
/* downlink */
{ /* channel data */
.irq_mask = MCPDM_DN_IRQ_EMPTY | MCPDM_DN_IRQ_FULL, u32 dn_channels;
.threshold = 1, u32 up_channels;
.format = PDMOUTFORMAT_LJUST,
},
/* uplink */
{
.irq_mask = MCPDM_UP_IRQ_EMPTY | MCPDM_UP_IRQ_FULL,
.threshold = 1,
.format = PDMOUTFORMAT_LJUST,
},
};
static struct omap_mcpdm_data mcpdm_data = { /* McPDM FIFO thresholds */
.links = omap_mcpdm_links, u32 dn_threshold;
.active = 0, u32 up_threshold;
}; };
/* /*
...@@ -71,76 +70,232 @@ static struct omap_pcm_dma_data omap_mcpdm_dai_dma_params[] = { ...@@ -71,76 +70,232 @@ static struct omap_pcm_dma_data omap_mcpdm_dai_dma_params[] = {
.dma_req = OMAP44XX_DMA_MCPDM_DL, .dma_req = OMAP44XX_DMA_MCPDM_DL,
.data_type = OMAP_DMA_DATA_TYPE_S32, .data_type = OMAP_DMA_DATA_TYPE_S32,
.sync_mode = OMAP_DMA_SYNC_PACKET, .sync_mode = OMAP_DMA_SYNC_PACKET,
.packet_size = 16, .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_REG_DN_DATA,
.port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_DN_DATA,
}, },
{ {
.name = "Audio capture", .name = "Audio capture",
.dma_req = OMAP44XX_DMA_MCPDM_UP, .dma_req = OMAP44XX_DMA_MCPDM_UP,
.data_type = OMAP_DMA_DATA_TYPE_S32, .data_type = OMAP_DMA_DATA_TYPE_S32,
.sync_mode = OMAP_DMA_SYNC_PACKET, .sync_mode = OMAP_DMA_SYNC_PACKET,
.packet_size = 16, .port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_REG_UP_DATA,
.port_addr = OMAP44XX_MCPDM_L3_BASE + MCPDM_UP_DATA,
}, },
}; };
static int omap_mcpdm_dai_startup(struct snd_pcm_substream *substream, static inline void omap_mcpdm_write(struct omap_mcpdm *mcpdm, u16 reg, u32 val)
struct snd_soc_dai *dai)
{ {
int err = 0; __raw_writel(val, mcpdm->io_base + reg);
}
if (!dai->active) static inline int omap_mcpdm_read(struct omap_mcpdm *mcpdm, u16 reg)
err = omap_mcpdm_request(); {
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, /*
* 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)
{
/* 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_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai) struct snd_soc_dai *dai)
{ {
if (!dai->active) struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
omap_mcpdm_free();
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);
}
mutex_unlock(&mcpdm->mutex);
return 0;
} }
static int omap_mcpdm_dai_trigger(struct snd_pcm_substream *substream, int cmd, static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai) struct snd_soc_dai *dai)
{ {
struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai); struct omap_mcpdm *mcpdm = 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;
case SNDRV_PCM_TRIGGER_STOP: mutex_lock(&mcpdm->mutex);
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: if (!dai->active) {
if (!--mcpdm_priv->active) if (omap_mcpdm_active(mcpdm)) {
omap_mcpdm_stop(stream); omap_mcpdm_stop(mcpdm);
break; omap_mcpdm_close_streams(mcpdm);
default: }
err = -EINVAL;
if (!omap_mcpdm_active(mcpdm))
pm_runtime_put_sync(mcpdm->dev);
} }
return err; mutex_unlock(&mcpdm->mutex);
} }
static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream, static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai) struct snd_soc_dai *dai)
{ {
struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai); struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
int stream = substream->stream; int stream = substream->stream;
int channels, err, link_mask = 0; struct omap_pcm_dma_data *dma_data;
int channels;
snd_soc_dai_set_dma_data(dai, substream, int link_mask = 0;
&omap_mcpdm_dai_dma_params[stream]);
channels = params_channels(params); channels = params_channels(params);
switch (channels) { switch (channels) {
...@@ -164,52 +319,88 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream, ...@@ -164,52 +319,88 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
return -EINVAL; return -EINVAL;
} }
dma_data = &omap_mcpdm_dai_dma_params[stream];
/* Configure McPDM channels, and DMA packet size */
if (stream == SNDRV_PCM_STREAM_PLAYBACK) { if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
mcpdm_links[stream].channels = link_mask << 3; mcpdm->dn_channels = link_mask << 3;
err = omap_mcpdm_playback_open(&mcpdm_links[stream]); dma_data->packet_size =
(MCPDM_DN_THRES_MAX - mcpdm->dn_threshold) * channels;
} else { } else {
mcpdm_links[stream].channels = link_mask << 0; mcpdm->up_channels = link_mask << 0;
err = omap_mcpdm_capture_open(&mcpdm_links[stream]); dma_data->packet_size = mcpdm->up_threshold * channels;
} }
return err; snd_soc_dai_set_dma_data(dai, substream, dma_data);
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 snd_soc_dai *dai)
{ {
struct omap_mcpdm_data *mcpdm_priv = snd_soc_dai_get_drvdata(dai); struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
struct omap_mcpdm_link *mcpdm_links = mcpdm_priv->links;
int stream = substream->stream;
int err;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) if (!omap_mcpdm_active(mcpdm)) {
err = omap_mcpdm_playback_close(&mcpdm_links[stream]); omap_mcpdm_start(mcpdm);
else omap_mcpdm_reg_dump(mcpdm);
err = omap_mcpdm_capture_close(&mcpdm_links[stream]); }
return err; return 0;
} }
static struct snd_soc_dai_ops omap_mcpdm_dai_ops = { static struct snd_soc_dai_ops omap_mcpdm_dai_ops = {
.startup = omap_mcpdm_dai_startup, .startup = omap_mcpdm_dai_startup,
.shutdown = omap_mcpdm_dai_shutdown, .shutdown = omap_mcpdm_dai_shutdown,
.trigger = omap_mcpdm_dai_trigger,
.hw_params = omap_mcpdm_dai_hw_params, .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) static int omap_mcpdm_probe(struct snd_soc_dai *dai)
#define OMAP_MCPDM_FORMATS (SNDRV_PCM_FMTBIT_S32_LE) {
struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
int ret;
pm_runtime_enable(mcpdm->dev);
static int omap_mcpdm_dai_probe(struct snd_soc_dai *dai) /* 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);
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; 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 = { 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 = { .playback = {
.channels_min = 1, .channels_min = 1,
.channels_max = 4, .channels_max = 4,
...@@ -227,27 +418,74 @@ static struct snd_soc_dai_driver omap_mcpdm_dai = { ...@@ -227,27 +418,74 @@ static struct snd_soc_dai_driver omap_mcpdm_dai = {
static __devinit int asoc_mcpdm_probe(struct platform_device *pdev) 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); ret = snd_soc_register_dai(&pdev->dev, &omap_mcpdm_dai);
if (ret < 0) if (!ret)
omap_mcpdm_remove(pdev); return 0;
err_irq:
iounmap(mcpdm->io_base);
err_iomap:
release_mem_region(res->start, resource_size(res));
err_res:
kfree(mcpdm);
return ret; return ret;
} }
static int __devexit asoc_mcpdm_remove(struct platform_device *pdev) 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); 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; return 0;
} }
static struct platform_driver asoc_mcpdm_driver = { static struct platform_driver asoc_mcpdm_driver = {
.driver = { .driver = {
.name = "omap-mcpdm-dai", .name = "omap-mcpdm",
.owner = THIS_MODULE, .owner = THIS_MODULE,
}, },
...@@ -267,6 +505,6 @@ static void __exit snd_omap_mcpdm_exit(void) ...@@ -267,6 +505,6 @@ static void __exit snd_omap_mcpdm_exit(void)
} }
module_exit(snd_omap_mcpdm_exit); 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_DESCRIPTION("OMAP PDM SoC Interface");
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
sound/soc/omap/omap-mcpdm.h 0 → 100644
View file @ fadd81b5
/*
* 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__ */
sound/soc/omap/sdp4430.c
View file @ fadd81b5
...@@ -32,7 +32,7 @@ ...@@ -32,7 +32,7 @@
#include <plat/hardware.h> #include <plat/hardware.h>
#include <plat/mux.h> #include <plat/mux.h>
#include "mcpdm.h" #include "omap-mcpdm.h"
#include "omap-pcm.h" #include "omap-pcm.h"
#include "../codecs/twl6040.h" #include "../codecs/twl6040.h"
...@@ -165,7 +165,7 @@ static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd) ...@@ -165,7 +165,7 @@ static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
static struct snd_soc_dai_link sdp4430_dai = { static struct snd_soc_dai_link sdp4430_dai = {
.name = "TWL6040", .name = "TWL6040",
.stream_name = "TWL6040", .stream_name = "TWL6040",
.cpu_dai_name ="omap-mcpdm-dai", .cpu_dai_name = "omap-mcpdm",
.codec_dai_name = "twl6040-hifi", .codec_dai_name = "twl6040-hifi",
.platform_name = "omap-pcm-audio", .platform_name = "omap-pcm-audio",
.codec_name = "twl6040-codec", .codec_name = "twl6040-codec",
......
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