smsir.c

Go to the documentation of this file.

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

 Siano Mobile Silicon, Inc.
 MDTV receiver kernel modules.
 Copyright (C) 2006-2009, Uri Shkolnik

 Copyright (c) 2010 - Mauro Carvalho Chehab
    - Ported the driver to use rc-core
    - IR raw event decoding is now done at rc-core
    - Code almost re-written

 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 of the License, 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, see <http://www.gnu.org/licenses/>.

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


#include <linux/types.h>
#include <linux/input.h>

#include "smscoreapi.h"
#include "smsir.h"
#include "sms-cards.h"

#define MODULE_NAME "smsmdtv"

void sms_ir_event(struct smscore_device_t *coredev, const char *buf, int len)
{
    int i;
    const s32 *samples = (const void *)buf;

    for (i = 0; i < len >> 2; i++) {
        DEFINE_IR_RAW_EVENT(ev);

        ev.duration = abs(samples[i]) * 1000; /* Convert to ns */
        ev.pulse = (samples[i] > 0) ? false : true;

        ir_raw_event_store(coredev->ir.dev, &ev);
    }
    ir_raw_event_handle(coredev->ir.dev);
}

int sms_ir_init(struct smscore_device_t *coredev)
{
    int err;
    int board_id = smscore_get_board_id(coredev);
    struct rc_dev *dev;

    sms_log("Allocating rc device");
    dev = rc_allocate_device();
    if (!dev) {
        sms_err("Not enough memory");
        return -ENOMEM;
    }

    coredev->ir.controller = 0; /* Todo: vega/nova SPI number */
    coredev->ir.timeout = IR_DEFAULT_TIMEOUT;
    sms_log("IR port %d, timeout %d ms",
            coredev->ir.controller, coredev->ir.timeout);

    snprintf(coredev->ir.name, sizeof(coredev->ir.name),
         "SMS IR (%s)", sms_get_board(board_id)->name);

    strlcpy(coredev->ir.phys, coredev->devpath, sizeof(coredev->ir.phys));
    strlcat(coredev->ir.phys, "/ir0", sizeof(coredev->ir.phys));

    dev->input_name = coredev->ir.name;
    dev->input_phys = coredev->ir.phys;
    dev->dev.parent = coredev->device;

#if 0
    /* TODO: properly initialize the parameters bellow */
    dev->input_id.bustype = BUS_USB;
    dev->input_id.version = 1;
    dev->input_id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
    dev->input_id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
#endif

    dev->priv = coredev;
    dev->driver_type = RC_DRIVER_IR_RAW;
    dev->allowed_protos = RC_TYPE_ALL;
    dev->map_name = sms_get_board(board_id)->rc_codes;
    dev->driver_name = MODULE_NAME;

    sms_log("Input device (IR) %s is set for key events", dev->input_name);

    err = rc_register_device(dev);
    if (err < 0) {
        sms_err("Failed to register device");
        rc_free_device(dev);
        return err;
    }

    coredev->ir.dev = dev;
    return 0;
}

void sms_ir_exit(struct smscore_device_t *coredev)
{
    if (coredev->ir.dev)
        rc_unregister_device(coredev->ir.dev);

    sms_log("");
}