75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
|
/*
|
||
|
|
* 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
|