Files
android_kernel_xiaomi_sm8450/drivers/media/pci/mantis/mantis_input.c
Jan Klötzke a96762da0c [media] mantis: add remote control support
The embedded UART is apparently used to receive decoded IR (RC5?) codes.
Forward these scan codes to the RC framework and (where known) add
corresponding mapping tables to translate them into regular keys.

This patch has been tested on a TechniSat CableStar HD2. The mappings of other
rc-maps were taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/) and the s2-liplianin repository. The
major difference to Christoph's patch is a reworked interrupt handling of the
UART because the RX interrupt is apparently level triggered and requires
masking until the FIFO is read by the UART worker.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 11:58:24 -03:00

89 lines
2.3 KiB
C

/*
Mantis PCI bridge driver
Copyright (C) Manu Abraham (abraham.manu@gmail.com)
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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <media/rc-core.h>
#include <linux/pci.h>
#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"
#include "mantis_common.h"
#include "mantis_input.h"
#define MODULE_NAME "mantis_core"
void mantis_input_process(struct mantis_pci *mantis, int scancode)
{
if (mantis->rc)
rc_keydown(mantis->rc, RC_TYPE_UNKNOWN, scancode, 0);
}
int mantis_input_init(struct mantis_pci *mantis)
{
struct rc_dev *dev;
int err;
dev = rc_allocate_device();
if (!dev) {
dprintk(MANTIS_ERROR, 1, "Remote device allocation failed");
err = -ENOMEM;
goto out;
}
snprintf(mantis->input_name, sizeof(mantis->input_name),
"Mantis %s IR receiver", mantis->hwconfig->model_name);
snprintf(mantis->input_phys, sizeof(mantis->input_phys),
"pci-%s/ir0", pci_name(mantis->pdev));
dev->input_name = mantis->input_name;
dev->input_phys = mantis->input_phys;
dev->input_id.bustype = BUS_PCI;
dev->input_id.vendor = mantis->vendor_id;
dev->input_id.product = mantis->device_id;
dev->input_id.version = 1;
dev->driver_name = MODULE_NAME;
dev->map_name = mantis->rc_map_name ? : RC_MAP_EMPTY;
dev->dev.parent = &mantis->pdev->dev;
err = rc_register_device(dev);
if (err) {
dprintk(MANTIS_ERROR, 1, "IR device registration failed, ret = %d", err);
goto out_dev;
}
mantis->rc = dev;
return 0;
out_dev:
rc_free_device(dev);
out:
return err;
}
EXPORT_SYMBOL_GPL(mantis_input_init);
void mantis_input_exit(struct mantis_pci *mantis)
{
rc_unregister_device(mantis->rc);
}
EXPORT_SYMBOL_GPL(mantis_input_exit);