as10x_cmd_stream.c

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/*
 * Abilis Systems Single DVB-T Receiver
 * Copyright (C) 2008 Pierrick Hascoet <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * 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.
 */

#include <linux/kernel.h>
#include "as102_drv.h"
#include "as10x_cmd.h"

int as10x_cmd_add_PID_filter(struct as10x_bus_adapter_t *adap,
                 struct as10x_ts_filter *filter)
{
    int error;
    struct as10x_cmd_t *pcmd, *prsp;

    ENTER();

    pcmd = adap->cmd;
    prsp = adap->rsp;

    /* prepare command */
    as10x_cmd_build(pcmd, (++adap->cmd_xid),
            sizeof(pcmd->body.add_pid_filter.req));

    /* fill command */
    pcmd->body.add_pid_filter.req.proc_id =
        cpu_to_le16(CONTROL_PROC_SETFILTER);
    pcmd->body.add_pid_filter.req.pid = cpu_to_le16(filter->pid);
    pcmd->body.add_pid_filter.req.stream_type = filter->type;

    if (filter->idx < 16)
        pcmd->body.add_pid_filter.req.idx = filter->idx;
    else
        pcmd->body.add_pid_filter.req.idx = 0xFF;

    /* send command */
    if (adap->ops->xfer_cmd) {
        error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
                sizeof(pcmd->body.add_pid_filter.req)
                + HEADER_SIZE, (uint8_t *) prsp,
                sizeof(prsp->body.add_pid_filter.rsp)
                + HEADER_SIZE);
    } else {
        error = AS10X_CMD_ERROR;
    }

    if (error < 0)
        goto out;

    /* parse response */
    error = as10x_rsp_parse(prsp, CONTROL_PROC_SETFILTER_RSP);

    if (error == 0) {
        /* Response OK -> get response data */
        filter->idx = prsp->body.add_pid_filter.rsp.filter_id;
    }

out:
    LEAVE();
    return error;
}

int as10x_cmd_del_PID_filter(struct as10x_bus_adapter_t *adap,
                 uint16_t pid_value)
{
    int error;
    struct as10x_cmd_t *pcmd, *prsp;

    ENTER();

    pcmd = adap->cmd;
    prsp = adap->rsp;

    /* prepare command */
    as10x_cmd_build(pcmd, (++adap->cmd_xid),
            sizeof(pcmd->body.del_pid_filter.req));

    /* fill command */
    pcmd->body.del_pid_filter.req.proc_id =
        cpu_to_le16(CONTROL_PROC_REMOVEFILTER);
    pcmd->body.del_pid_filter.req.pid = cpu_to_le16(pid_value);

    /* send command */
    if (adap->ops->xfer_cmd) {
        error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
                sizeof(pcmd->body.del_pid_filter.req)
                + HEADER_SIZE, (uint8_t *) prsp,
                sizeof(prsp->body.del_pid_filter.rsp)
                + HEADER_SIZE);
    } else {
        error = AS10X_CMD_ERROR;
    }

    if (error < 0)
        goto out;

    /* parse response */
    error = as10x_rsp_parse(prsp, CONTROL_PROC_REMOVEFILTER_RSP);

out:
    LEAVE();
    return error;
}

int as10x_cmd_start_streaming(struct as10x_bus_adapter_t *adap)
{
    int error;
    struct as10x_cmd_t *pcmd, *prsp;

    ENTER();

    pcmd = adap->cmd;
    prsp = adap->rsp;

    /* prepare command */
    as10x_cmd_build(pcmd, (++adap->cmd_xid),
            sizeof(pcmd->body.start_streaming.req));

    /* fill command */
    pcmd->body.start_streaming.req.proc_id =
        cpu_to_le16(CONTROL_PROC_START_STREAMING);

    /* send command */
    if (adap->ops->xfer_cmd) {
        error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
                sizeof(pcmd->body.start_streaming.req)
                + HEADER_SIZE, (uint8_t *) prsp,
                sizeof(prsp->body.start_streaming.rsp)
                + HEADER_SIZE);
    } else {
        error = AS10X_CMD_ERROR;
    }

    if (error < 0)
        goto out;

    /* parse response */
    error = as10x_rsp_parse(prsp, CONTROL_PROC_START_STREAMING_RSP);

out:
    LEAVE();
    return error;
}

int as10x_cmd_stop_streaming(struct as10x_bus_adapter_t *adap)
{
    int8_t error;
    struct as10x_cmd_t *pcmd, *prsp;

    ENTER();

    pcmd = adap->cmd;
    prsp = adap->rsp;

    /* prepare command */
    as10x_cmd_build(pcmd, (++adap->cmd_xid),
            sizeof(pcmd->body.stop_streaming.req));

    /* fill command */
    pcmd->body.stop_streaming.req.proc_id =
        cpu_to_le16(CONTROL_PROC_STOP_STREAMING);

    /* send command */
    if (adap->ops->xfer_cmd) {
        error = adap->ops->xfer_cmd(adap, (uint8_t *) pcmd,
                sizeof(pcmd->body.stop_streaming.req)
                + HEADER_SIZE, (uint8_t *) prsp,
                sizeof(prsp->body.stop_streaming.rsp)
                + HEADER_SIZE);
    } else {
        error = AS10X_CMD_ERROR;
    }

    if (error < 0)
        goto out;

    /* parse response */
    error = as10x_rsp_parse(prsp, CONTROL_PROC_STOP_STREAMING_RSP);

out:
    LEAVE();
    return error;
}