ddbridge.h

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/*
 * ddbridge.h: Digital Devices PCIe bridge driver
 *
 * Copyright (C) 2010-2011 Digital Devices GmbH
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 only, 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 Street, Fifth Floor, Boston, MA
 * 02110-1301, USA
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 */

#ifndef _DDBRIDGE_H_
#define _DDBRIDGE_H_

#include <linux/types.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
#include <asm/dma.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/ca.h>
#include <linux/socket.h>

#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_ringbuffer.h"
#include "dvb_ca_en50221.h"
#include "dvb_net.h"
#include "cxd2099.h"

#define DDB_MAX_I2C     4
#define DDB_MAX_PORT    4
#define DDB_MAX_INPUT   8
#define DDB_MAX_OUTPUT  4

struct ddb_info {
    int   type;
#define DDB_NONE         0
#define DDB_OCTOPUS      1
    char *name;
    int   port_num;
    u32   port_type[DDB_MAX_PORT];
};

/* DMA_SIZE MUST be divisible by 188 and 128 !!! */

#define INPUT_DMA_MAX_BUFS 32      /* hardware table limit */
#define INPUT_DMA_BUFS 8
#define INPUT_DMA_SIZE (128*47*21)

#define OUTPUT_DMA_MAX_BUFS 32
#define OUTPUT_DMA_BUFS 8
#define OUTPUT_DMA_SIZE (128*47*21)

struct ddb;
struct ddb_port;

struct ddb_input {
    struct ddb_port       *port;
    u32                    nr;
    int                    attached;

    dma_addr_t             pbuf[INPUT_DMA_MAX_BUFS];
    u8                    *vbuf[INPUT_DMA_MAX_BUFS];
    u32                    dma_buf_num;
    u32                    dma_buf_size;

    struct tasklet_struct  tasklet;
    spinlock_t             lock;
    wait_queue_head_t      wq;
    int                    running;
    u32                    stat;
    u32                    cbuf;
    u32                    coff;

    struct dvb_adapter     adap;
    struct dvb_device     *dev;
    struct dvb_frontend   *fe;
    struct dvb_frontend   *fe2;
    struct dmxdev          dmxdev;
    struct dvb_demux       demux;
    struct dvb_net         dvbnet;
    struct dmx_frontend    hw_frontend;
    struct dmx_frontend    mem_frontend;
    int                    users;
    int (*gate_ctrl)(struct dvb_frontend *, int);
};

struct ddb_output {
    struct ddb_port       *port;
    u32                    nr;
    dma_addr_t             pbuf[OUTPUT_DMA_MAX_BUFS];
    u8                    *vbuf[OUTPUT_DMA_MAX_BUFS];
    u32                    dma_buf_num;
    u32                    dma_buf_size;
    struct tasklet_struct  tasklet;
    spinlock_t             lock;
    wait_queue_head_t      wq;
    int                    running;
    u32                    stat;
    u32                    cbuf;
    u32                    coff;

    struct dvb_adapter     adap;
    struct dvb_device     *dev;
};

struct ddb_i2c {
    struct ddb            *dev;
    u32                    nr;
    struct i2c_adapter     adap;
    struct i2c_adapter     adap2;
    u32                    regs;
    u32                    rbuf;
    u32                    wbuf;
    int                    done;
    wait_queue_head_t      wq;
};

struct ddb_port {
    struct ddb            *dev;
    u32                    nr;
    struct ddb_i2c        *i2c;
    struct mutex           i2c_gate_lock;
    u32                    class;
#define DDB_PORT_NONE           0
#define DDB_PORT_CI             1
#define DDB_PORT_TUNER          2
    u32                    type;
#define DDB_TUNER_NONE          0
#define DDB_TUNER_DVBS_ST       1
#define DDB_TUNER_DVBS_ST_AA    2
#define DDB_TUNER_DVBCT_TR     16
#define DDB_TUNER_DVBCT_ST     17
    u32                    adr;

    struct ddb_input      *input[2];
    struct ddb_output     *output;
    struct dvb_ca_en50221 *en;
};

struct ddb {
    struct pci_dev        *pdev;
    unsigned char         *regs;
    struct ddb_port        port[DDB_MAX_PORT];
    struct ddb_i2c         i2c[DDB_MAX_I2C];
    struct ddb_input       input[DDB_MAX_INPUT];
    struct ddb_output      output[DDB_MAX_OUTPUT];

    struct device         *ddb_dev;
    int                    nr;
    u8                     iobuf[1028];

    struct ddb_info       *info;
    int                    msi;
};

/****************************************************************************/

#define ddbwritel(_val, _adr)        writel((_val), \
                     (char *) (dev->regs+(_adr)))
#define ddbreadl(_adr)               readl((char *) (dev->regs+(_adr)))
#define ddbcpyto(_adr, _src, _count) memcpy_toio((char *)   \
                     (dev->regs+(_adr)), (_src), (_count))
#define ddbcpyfrom(_dst, _adr, _count) memcpy_fromio((_dst), (char *) \
                       (dev->regs+(_adr)), (_count))

/****************************************************************************/

#endif