dsp_common.h

来自「omap3 linux 2.6 用nocc去除了冗余代码」· C头文件 代码 · 共 121 行

/*
 * This file is part of OMAP DSP driver (DSP Gateway version 3.3.1)
 *
 * Copyright (C) 2002-2006 Nokia Corporation. All rights reserved.
 *
 * Contact: Toshihiro Kobayashi <[e-mail]>
 *
 * 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
 *
 */

#define DRIVER_DSP_COMMON_H

#include <linux/clk.h>
#include <asm/arch/mmu.h>
#include "hardware_dsp.h"


#define DSPSPACE_SIZE	0x1000000

#define omap_set_bit_regw(b,r) \
	do { omap_writew(omap_readw(r) | (b), (r)); } while(0)
#define omap_clr_bit_regw(b,r) \
	do { omap_writew(omap_readw(r) & ~(b), (r)); } while(0)
#define omap_set_bit_regl(b,r) \
	do { omap_writel(omap_readl(r) | (b), (r)); } while(0)
#define omap_clr_bit_regl(b,r) \
	do { omap_writel(omap_readl(r) & ~(b), (r)); } while(0)
#define omap_set_bits_regl(val,mask,r) \
	do { omap_writel((omap_readl(r) & ~(mask)) | (val), (r)); } while(0)

#define dspword_to_virt(dw)	((void *)(dspmem_base + ((dw) << 1)))
#define dspbyte_to_virt(db)	((void *)(dspmem_base + (db)))
#define virt_to_dspword(va) \
	((dsp_long_t)(((unsigned long)(va) - dspmem_base) >> 1))
#define virt_to_dspbyte(va) \
	((dsp_long_t)((unsigned long)(va) - dspmem_base))
#define is_dsp_internal_mem(va) \
	(((unsigned long)(va) >= dspmem_base) &&  \
	 ((unsigned long)(va) < dspmem_base + dspmem_size))
#define is_dspbyte_internal_mem(db)	((db) < dspmem_size)
#define is_dspword_internal_mem(dw)	(((dw) << 1) < dspmem_size)



typedef u32 dsp_long_t;	/* must have ability to carry TADD_ABORTADR */

extern dsp_long_t dspmem_base, dspmem_size,
		  daram_base, daram_size,
		  saram_base, saram_size;

enum cpustat_e {
	CPUSTAT_RESET = 0,
	CPUSTAT_RUN,
	CPUSTAT_MAX
};

int dsp_set_rstvect(dsp_long_t adr);
dsp_long_t dsp_get_rstvect(void);
void dsp_set_idle_boot_base(dsp_long_t adr, size_t size);
void dsp_reset_idle_boot_base(void);
void dsp_cpustat_request(enum cpustat_e req);
enum cpustat_e dsp_cpustat_get_stat(void);
u16 dsp_cpustat_get_icrmask(void);
void dsp_cpustat_set_icrmask(u16 mask);
void dsp_register_mem_cb(int (*req_cb)(void), void (*rel_cb)(void));
void dsp_unregister_mem_cb(void);


struct dsp_kfunc_device {
	char		*name;
	struct clk	*fck;
	struct clk	*ick;;
	spinlock_t	 lock;
	int		 enabled;
	int		 type;
#define DSP_KFUNC_DEV_TYPE_COMMON	1
#define DSP_KFUNC_DEV_TYPE_AUDIO	2

	struct list_head	entry;

	int	(*probe)(struct dsp_kfunc_device *, int);
	int	(*remove)(struct dsp_kfunc_device *, int);
	int	(*enable)(struct dsp_kfunc_device *, int);
	int	(*disable)(struct dsp_kfunc_device *, int);
};

extern int dsp_kfunc_device_register(struct dsp_kfunc_device *);

struct dsp_platform_data {
	struct list_head kdev_list;
};

struct omap_dsp {
	struct mutex		lock;
	int			enabled;	/* stored peripheral status */
	struct omap_mmu		*mmu;
	struct omap_mbox	*mbox;
	struct device		*dev;
	struct list_head	*kdev_list;
	int			initialized;
};


extern struct omap_dsp *omap_dsp;

extern int dsp_late_init(void);