linux/drivers/media/dvb/siano/smsir.c

113 lines
3.2 KiB
C
Raw Normal View History

/****************************************************************
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.input_dev, &ev);
}
ir_raw_event_handle(coredev->ir.input_dev);
}
int sms_ir_init(struct smscore_device_t *coredev)
{
struct input_dev *input_dev;
int board_id = smscore_get_board_id(coredev);
sms_log("Allocating input device");
input_dev = input_allocate_device();
if (!input_dev) {
sms_err("Not enough memory");
return -ENOMEM;
}
coredev->ir.input_dev = input_dev;
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));
input_dev->name = coredev->ir.name;
input_dev->phys = coredev->ir.phys;
input_dev->dev.parent = coredev->device;
#if 0
/* TODO: properly initialize the parameters bellow */
input_dev->id.bustype = BUS_USB;
input_dev->id.version = 1;
input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
#endif
coredev->ir.props.priv = coredev;
coredev->ir.props.driver_type = RC_DRIVER_IR_RAW;
coredev->ir.props.allowed_protos = IR_TYPE_ALL;
sms_log("Input device (IR) %s is set for key events", input_dev->name);
if (ir_input_register(input_dev, sms_get_board(board_id)->rc_codes,
&coredev->ir.props, MODULE_NAME)) {
sms_err("Failed to register device");
input_free_device(input_dev);
return -EACCES;
}
return 0;
}
void sms_ir_exit(struct smscore_device_t *coredev)
{
if (coredev->ir.input_dev)
ir_input_unregister(coredev->ir.input_dev);
sms_log("");
}