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Commit d21872b3 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

Merge branch 'v2.6.35-omap-mailbox-for-next' of... 

Merge branch 'v2.6.35-omap-mailbox-for-next' of git://gitorious.org/~doyu/lk/mainline into omap-for-linus

Conflicts:
	arch/arm/mach-omap1/devices.c
parents 80690ccc b3e69146

arch/arm/mach-omap1/mailbox.c

+21 −34
Original line number Diff line number Diff line 
/*

 * Mailbox reservation modules for DSP

 * Mailbox reservation modules for OMAP1

 *

 * Copyright (C) 2006-2009 Nokia Corporation

 * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
@@ -9,13 +9,10 @@ 
 * for more details.

 */



#include <linux/kernel.h>

#include <linux/resource.h>

#include <linux/interrupt.h>

#include <linux/platform_device.h>

#include <linux/io.h>

#include <plat/mailbox.h>

#include <mach/irqs.h>



#define MAILBOX_ARM2DSP1		0x00

#define MAILBOX_ARM2DSP1b		0x04
@@ -83,7 +80,7 @@ static int omap1_mbox_fifo_full(struct omap_mbox *mbox) 
	struct omap_mbox1_fifo *fifo =

		&((struct omap_mbox1_priv *)mbox->priv)->rx_fifo;



	return (mbox_read_reg(fifo->flag));

	return mbox_read_reg(fifo->flag);

}



/* irq */
@@ -141,47 +138,37 @@ struct omap_mbox mbox_dsp_info = { 
	.ops	= &omap1_mbox_ops,

	.priv	= &omap1_mbox_dsp_priv,

};

EXPORT_SYMBOL(mbox_dsp_info);



struct omap_mbox *omap1_mboxes[] = { &mbox_dsp_info, NULL };



static int __devinit omap1_mbox_probe(struct platform_device *pdev)

{

	struct resource *res;



	if (pdev->num_resources != 2) {

		dev_err(&pdev->dev, "invalid number of resources: %d\n",

			pdev->num_resources);

		return -ENODEV;

	}

	struct resource *mem;

	int ret;

	int i;

	struct omap_mbox **list;



	/* MBOX base */

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (unlikely(!res)) {

		dev_err(&pdev->dev, "invalid mem resource\n");

		return -ENODEV;

	}

	list = omap1_mboxes;

	list[0]->irq = platform_get_irq_byname(pdev, "dsp");



	mbox_base = ioremap(res->start, resource_size(res));

	if (!mbox_base) {

		dev_err(&pdev->dev, "ioremap failed\n");

		return -ENODEV;

	}

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	mbox_base = ioremap(mem->start, resource_size(mem));

	if (!mbox_base)

		return -ENOMEM;



	/* DSP IRQ */

	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);

	if (unlikely(!res)) {

		dev_err(&pdev->dev, "invalid irq resource\n");

	ret = omap_mbox_register(&pdev->dev, list);

	if (ret) {

		iounmap(mbox_base);

		return -ENODEV;

		return ret;

	}

	mbox_dsp_info.irq = res->start;



	return omap_mbox_register(&pdev->dev, &mbox_dsp_info);

	return 0;

}



static int __devexit omap1_mbox_remove(struct platform_device *pdev)

{

	omap_mbox_unregister(&mbox_dsp_info);



	omap_mbox_unregister();

	iounmap(mbox_base);

	return 0;

}
@@ -189,7 +176,7 @@ static struct platform_driver omap1_mbox_driver = { 
	.probe	= omap1_mbox_probe,

	.remove	= __devexit_p(omap1_mbox_remove),

	.driver	= {

		.name	= "omap1-mailbox",

		.name	= "omap-mailbox",

	},

};

arch/arm/mach-omap2/devices.c

+5 −1
Original line number Diff line number Diff line
@@ -152,10 +152,12 @@ static struct resource omap2_mbox_resources[] = { 
	{

		.start		= INT_24XX_MAIL_U0_MPU,

		.flags		= IORESOURCE_IRQ,

		.name		= "dsp",

	},

	{

		.start		= INT_24XX_MAIL_U3_MPU,

		.flags		= IORESOURCE_IRQ,

		.name		= "iva",

	},

};

static int omap2_mbox_resources_sz = ARRAY_SIZE(omap2_mbox_resources);
@@ -174,6 +176,7 @@ static struct resource omap3_mbox_resources[] = { 
	{

		.start		= INT_24XX_MAIL_U0_MPU,

		.flags		= IORESOURCE_IRQ,

		.name		= "dsp",

	},

};

static int omap3_mbox_resources_sz = ARRAY_SIZE(omap3_mbox_resources);
@@ -195,6 +198,7 @@ static struct resource omap4_mbox_resources[] = { 
	{

		.start          = OMAP44XX_IRQ_MAIL_U0,

		.flags          = IORESOURCE_IRQ,

		.name		= "mbox",

	},

};

static int omap4_mbox_resources_sz = ARRAY_SIZE(omap4_mbox_resources);
@@ -204,7 +208,7 @@ static int omap4_mbox_resources_sz = ARRAY_SIZE(omap4_mbox_resources); 
#endif



static struct platform_device mbox_device = {

	.name		= "omap2-mailbox",

	.name		= "omap-mailbox",

	.id		= -1,

};

arch/arm/mach-omap2/mailbox.c

+82 −100
Original line number Diff line number Diff line
@@ -10,7 +10,6 @@ 
 * for more details.

 */



#include <linux/kernel.h>

#include <linux/clk.h>

#include <linux/err.h>

#include <linux/platform_device.h>
@@ -18,8 +17,6 @@ 
#include <plat/mailbox.h>

#include <mach/irqs.h>



#define DRV_NAME "omap2-mailbox"



#define MAILBOX_REVISION		0x000

#define MAILBOX_SYSCONFIG		0x010

#define MAILBOX_SYSSTATUS		0x014
@@ -131,7 +128,7 @@ static int omap2_mbox_startup(struct omap_mbox *mbox) 
	}



	l = mbox_read_reg(MAILBOX_REVISION);

	pr_info("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));

	pr_debug("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));



	if (cpu_is_omap44xx())

		l = OMAP4_SMARTIDLE;
@@ -283,6 +280,8 @@ static struct omap_mbox_ops omap2_mbox_ops = { 
 */



/* FIXME: the following structs should be filled automatically by the user id */



#if defined(CONFIG_ARCH_OMAP3430) || defined(CONFIG_ARCH_OMAP2420)

/* DSP */

static struct omap_mbox2_priv omap2_mbox_dsp_priv = {

	.tx_fifo = {
@@ -300,10 +299,46 @@ static struct omap_mbox2_priv omap2_mbox_dsp_priv = { 
	.irqdisable	= MAILBOX_IRQENABLE(0),

};



struct omap_mbox mbox_dsp_info = {

	.name	= "dsp",

	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_dsp_priv,

};

#endif



#if defined(CONFIG_ARCH_OMAP3430)

struct omap_mbox *omap3_mboxes[] = { &mbox_dsp_info, NULL };

#endif



#if defined(CONFIG_ARCH_OMAP2420)

/* IVA */

static struct omap_mbox2_priv omap2_mbox_iva_priv = {

	.tx_fifo = {

		.msg		= MAILBOX_MESSAGE(2),

		.fifo_stat	= MAILBOX_FIFOSTATUS(2),

	},

	.rx_fifo = {

		.msg		= MAILBOX_MESSAGE(3),

		.msg_stat	= MAILBOX_MSGSTATUS(3),

	},

	.irqenable	= MAILBOX_IRQENABLE(3),

	.irqstatus	= MAILBOX_IRQSTATUS(3),

	.notfull_bit	= MAILBOX_IRQ_NOTFULL(2),

	.newmsg_bit	= MAILBOX_IRQ_NEWMSG(3),

	.irqdisable	= MAILBOX_IRQENABLE(3),

};



static struct omap_mbox mbox_iva_info = {

	.name	= "iva",

	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_iva_priv,

};



struct omap_mbox *omap2_mboxes[] = { &mbox_iva_info, &mbox_dsp_info, NULL };

#endif



/* OMAP4 specific data structure. Use the cpu_is_omap4xxx()

to use this*/

#if defined(CONFIG_ARCH_OMAP4)

/* OMAP4 */

static struct omap_mbox2_priv omap2_mbox_1_priv = {

	.tx_fifo = {

		.msg		= MAILBOX_MESSAGE(0),
@@ -325,14 +360,6 @@ struct omap_mbox mbox_1_info = { 
	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_1_priv,

};

EXPORT_SYMBOL(mbox_1_info);



struct omap_mbox mbox_dsp_info = {

	.name	= "dsp",

	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_dsp_priv,

};

EXPORT_SYMBOL(mbox_dsp_info);



static struct omap_mbox2_priv omap2_mbox_2_priv = {

	.tx_fifo = {
@@ -355,110 +382,64 @@ struct omap_mbox mbox_2_info = { 
	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_2_priv,

};

EXPORT_SYMBOL(mbox_2_info);





#if defined(CONFIG_ARCH_OMAP2420) /* IVA */

static struct omap_mbox2_priv omap2_mbox_iva_priv = {

	.tx_fifo = {

		.msg		= MAILBOX_MESSAGE(2),

		.fifo_stat	= MAILBOX_FIFOSTATUS(2),

	},

	.rx_fifo = {

		.msg		= MAILBOX_MESSAGE(3),

		.msg_stat	= MAILBOX_MSGSTATUS(3),

	},

	.irqenable	= MAILBOX_IRQENABLE(3),

	.irqstatus	= MAILBOX_IRQSTATUS(3),

	.notfull_bit	= MAILBOX_IRQ_NOTFULL(2),

	.newmsg_bit	= MAILBOX_IRQ_NEWMSG(3),

	.irqdisable	= MAILBOX_IRQENABLE(3),

};



static struct omap_mbox mbox_iva_info = {

	.name	= "iva",

	.ops	= &omap2_mbox_ops,

	.priv	= &omap2_mbox_iva_priv,

};

struct omap_mbox *omap4_mboxes[] = { &mbox_1_info, &mbox_2_info, NULL };

#endif



static int __devinit omap2_mbox_probe(struct platform_device *pdev)

{

	struct resource *res;

	struct resource *mem;

	int ret;

	struct omap_mbox **list;



	/* MBOX base */

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (unlikely(!res)) {

		dev_err(&pdev->dev, "invalid mem resource\n");

		return -ENODEV;

	}

	mbox_base = ioremap(res->start, resource_size(res));

	if (!mbox_base)

		return -ENOMEM;



	/* DSP or IVA2 IRQ */

	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);

	if (false)

		;

#if defined(CONFIG_ARCH_OMAP3430)

	else if (cpu_is_omap3430()) {

		list = omap3_mboxes;



	if (unlikely(!res)) {

		dev_err(&pdev->dev, "invalid irq resource\n");

		ret = -ENODEV;

		goto err_dsp;

		list[0]->irq = platform_get_irq_byname(pdev, "dsp");

	}

	if (cpu_is_omap44xx()) {

		mbox_1_info.irq = res->start;

		ret = omap_mbox_register(&pdev->dev, &mbox_1_info);

	} else {

		mbox_dsp_info.irq = res->start;

		ret = omap_mbox_register(&pdev->dev, &mbox_dsp_info);

	}

	if (ret)

		goto err_dsp;

#endif

#if defined(CONFIG_ARCH_OMAP2420)

	else if (cpu_is_omap2420()) {

		list = omap2_mboxes;



	if (cpu_is_omap44xx()) {

		mbox_2_info.irq = res->start;

		ret = omap_mbox_register(&pdev->dev, &mbox_2_info);

		if (ret) {

			omap_mbox_unregister(&mbox_1_info);

			goto err_dsp;

		list[0]->irq = platform_get_irq_byname(pdev, "dsp");

		list[1]->irq = platform_get_irq_byname(pdev, "iva");

	}

#endif

#if defined(CONFIG_ARCH_OMAP4)

	else if (cpu_is_omap44xx()) {

		list = omap4_mboxes;



		list[0]->irq = list[1]->irq =

			platform_get_irq_byname(pdev, "mbox");

	}

#if defined(CONFIG_ARCH_OMAP2420) /* IVA */

	if (cpu_is_omap2420()) {

		/* IVA IRQ */

		res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);

		if (unlikely(!res)) {

			dev_err(&pdev->dev, "invalid irq resource\n");

			ret = -ENODEV;

			omap_mbox_unregister(&mbox_dsp_info);

			goto err_dsp;

#endif

	else {

		pr_err("%s: platform not supported\n", __func__);

		return -ENODEV;

	}

		mbox_iva_info.irq = res->start;

		ret = omap_mbox_register(&pdev->dev, &mbox_iva_info);



	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	mbox_base = ioremap(mem->start, resource_size(mem));

	if (!mbox_base)

		return -ENOMEM;



	ret = omap_mbox_register(&pdev->dev, list);

	if (ret) {

			omap_mbox_unregister(&mbox_dsp_info);

			goto err_dsp;

		}

		iounmap(mbox_base);

		return ret;

	}

#endif

	return 0;



err_dsp:

	iounmap(mbox_base);

	return ret;

}



static int __devexit omap2_mbox_remove(struct platform_device *pdev)

{

#if defined(CONFIG_ARCH_OMAP2420)

	omap_mbox_unregister(&mbox_iva_info);

#endif



	if (cpu_is_omap44xx()) {

		omap_mbox_unregister(&mbox_2_info);

		omap_mbox_unregister(&mbox_1_info);

	} else

		omap_mbox_unregister(&mbox_dsp_info);

	omap_mbox_unregister();

	iounmap(mbox_base);

	return 0;

}
@@ -467,7 +448,7 @@ static struct platform_driver omap2_mbox_driver = { 
	.probe = omap2_mbox_probe,

	.remove = __devexit_p(omap2_mbox_remove),

	.driver = {

		.name = DRV_NAME,

		.name = "omap-mailbox",

	},

};
@@ -486,5 +467,6 @@ module_exit(omap2_mbox_exit); 


MODULE_LICENSE("GPL v2");

MODULE_DESCRIPTION("omap mailbox: omap2/3/4 architecture specific functions");

MODULE_AUTHOR("Hiroshi DOYU <Hiroshi.DOYU@nokia.com>, Paul Mundt");

MODULE_ALIAS("platform:"DRV_NAME);
 
MODULE_AUTHOR("Hiroshi DOYU <Hiroshi.DOYU@nokia.com>");

MODULE_AUTHOR("Paul Mundt");

MODULE_ALIAS("platform:omap2-mailbox");

arch/arm/plat-omap/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -88,6 +88,15 @@ config OMAP_MBOX_FWK 
	  Say Y here if you want to use OMAP Mailbox framework support for

	  DSP, IVA1.0 and IVA2 in OMAP1/2/3.



config OMAP_MBOX_KFIFO_SIZE

	int "Mailbox kfifo default buffer size (bytes)"

	depends on OMAP_MBOX_FWK

	default 256

	help

	  Specify the default size of mailbox's kfifo buffers (bytes).

	  This can also be changed at runtime (via the mbox_kfifo_size

	  module parameter).



config OMAP_IOMMU

	tristate

arch/arm/plat-omap/include/plat/mailbox.h

+6 −14
Original line number Diff line number Diff line
@@ -3,10 +3,11 @@ 
#ifndef MAILBOX_H

#define MAILBOX_H



#include <linux/wait.h>

#include <linux/spinlock.h>

#include <linux/workqueue.h>

#include <linux/blkdev.h>

#include <linux/interrupt.h>

#include <linux/device.h>

#include <linux/kfifo.h>



typedef u32 mbox_msg_t;

struct omap_mbox;
@@ -42,7 +43,7 @@ struct omap_mbox_ops { 


struct omap_mbox_queue {

	spinlock_t		lock;

	struct request_queue	*queue;

	struct kfifo		fifo;

	struct work_struct	work;

	struct tasklet_struct	tasklet;

	int	(*callback)(void *);
@@ -52,19 +53,10 @@ struct omap_mbox_queue { 
struct omap_mbox {

	char			*name;

	unsigned int		irq;



	struct omap_mbox_queue	*txq, *rxq;



	struct omap_mbox_ops	*ops;



	mbox_msg_t		seq_snd, seq_rcv;



	struct device		*dev;



	struct omap_mbox	*next;

	void			*priv;



	void			(*err_notify)(void);

};



int omap_mbox_msg_send(struct omap_mbox *, mbox_msg_t msg);
@@ -73,8 +65,8 @@ void omap_mbox_init_seq(struct omap_mbox *); 
struct omap_mbox *omap_mbox_get(const char *);

void omap_mbox_put(struct omap_mbox *);



int omap_mbox_register(struct device *parent, struct omap_mbox *);

int omap_mbox_unregister(struct omap_mbox *);

int omap_mbox_register(struct device *parent, struct omap_mbox **);

int omap_mbox_unregister(void);



static inline void omap_mbox_save_ctx(struct omap_mbox *mbox)

{