[linux-2.6-block.git] / include / media / blackfin / ppi.h

/*
 * Analog Devices PPI header file
 *
 * Copyright (c) 2011 Analog Devices 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _PPI_H_
#define _PPI_H_

#include <linux/interrupt.h>

#ifdef EPPI_EN
#define PORT_EN EPPI_EN
#define DMA32 0
#define PACK_EN PACKEN
#endif

struct ppi_if;

struct ppi_params {
	int width;
	int height;
	int bpp;
	unsigned long ppi_control;
	u32 int_mask;
	int blank_clocks;
};

struct ppi_ops {
	int (*attach_irq)(struct ppi_if *ppi, irq_handler_t handler);
	void (*detach_irq)(struct ppi_if *ppi);
	int (*start)(struct ppi_if *ppi);
	int (*stop)(struct ppi_if *ppi);
	int (*set_params)(struct ppi_if *ppi, struct ppi_params *params);
	void (*update_addr)(struct ppi_if *ppi, unsigned long addr);
};

enum ppi_type {
	PPI_TYPE_PPI,
	PPI_TYPE_EPPI,
};

struct ppi_info {
	enum ppi_type type;
	int dma_ch;
	int irq_err;
	void __iomem *base;
	const unsigned short *pin_req;
};

struct ppi_if {
	unsigned long ppi_control;
	const struct ppi_ops *ops;
	const struct ppi_info *info;
	bool err_int;
	void *priv;
};

struct ppi_if *ppi_create_instance(const struct ppi_info *info);
void ppi_delete_instance(struct ppi_if *ppi);
#endif
Commit	Line	Data
63b1a90d SJ	1	/*
	2	* Analog Devices PPI header file
	3	*
	4	* Copyright (c) 2011 Analog Devices Inc.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*/
	19
	20	#ifndef _PPI_H_
	21	#define _PPI_H_
	22
	23	#include <linux/interrupt.h>
	24
	25	#ifdef EPPI_EN
	26	#define PORT_EN EPPI_EN
	27	#define DMA32 0
	28	#define PACK_EN PACKEN
	29	#endif
	30
	31	struct ppi_if;
	32
	33	struct ppi_params {
	34	int width;
	35	int height;
	36	int bpp;
	37	unsigned long ppi_control;
	38	u32 int_mask;
	39	int blank_clocks;
	40	};
	41
	42	struct ppi_ops {
	43	int (attach_irq)(struct ppi_if ppi, irq_handler_t handler);
	44	void (detach_irq)(struct ppi_if ppi);
	45	int (start)(struct ppi_if ppi);
	46	int (stop)(struct ppi_if ppi);
	47	int (set_params)(struct ppi_if ppi, struct ppi_params *params);
	48	void (update_addr)(struct ppi_if ppi, unsigned long addr);
	49	};
	50
	51	enum ppi_type {
	52	PPI_TYPE_PPI,
	53	PPI_TYPE_EPPI,
	54	};
	55
	56	struct ppi_info {
	57	enum ppi_type type;
	58	int dma_ch;
	59	int irq_err;
	60	void __iomem *base;
	61	const unsigned short *pin_req;
	62	};
	63
	64	struct ppi_if {
65	unsigned long ppi_control;
66	const struct ppi_ops *ops;
67	const struct ppi_info *info;
68	bool err_int;
69	void *priv;
70	};
71
72	struct ppi_if ppi_create_instance(const struct ppi_info info);
73	void ppi_delete_instance(struct ppi_if *ppi);
74	#endif