1// SPDX-License-Identifier: GPL-2.0+
2//
3// Siano Mobile Silicon, Inc.
4// MDTV receiver kernel modules.
5// Copyright (C) 2006-2009, Uri Shkolnik
6//
7// Copyright (c) 2010 - Mauro Carvalho Chehab
8//	- Ported the driver to use rc-core
9//	- IR raw event decoding is now done at rc-core
10//	- Code almost re-written
11
12
13#include "smscoreapi.h"
14
15#include <linux/types.h>
16#include <linux/input.h>
17
18#include "smsir.h"
19#include "sms-cards.h"
20
21#define MODULE_NAME "smsmdtv"
22
23void sms_ir_event(struct smscore_device_t *coredev, const char *buf, int len)
24{
25	int i;
26	const s32 *samples = (const void *)buf;
27
28	for (i = 0; i < len >> 2; i++) {
29		struct ir_raw_event ev = {
30			.duration = abs(samples[i]),
31			.pulse = (samples[i] > 0) ? false : true
32		};
33
34		ir_raw_event_store(coredev->ir.dev, &ev);
35	}
36	ir_raw_event_handle(coredev->ir.dev);
37}
38
39int sms_ir_init(struct smscore_device_t *coredev)
40{
41	int err;
42	int board_id = smscore_get_board_id(coredev);
43	struct rc_dev *dev;
44
45	pr_debug("Allocating rc device\n");
46	dev = rc_allocate_device(RC_DRIVER_IR_RAW);
47	if (!dev)
48		return -ENOMEM;
49
50	coredev->ir.controller = 0;	/* Todo: vega/nova SPI number */
51	coredev->ir.timeout = US_TO_NS(IR_DEFAULT_TIMEOUT);
52	pr_debug("IR port %d, timeout %d ms\n",
53			coredev->ir.controller, coredev->ir.timeout);
54
55	snprintf(coredev->ir.name, sizeof(coredev->ir.name),
56		 "SMS IR (%s)", sms_get_board(board_id)->name);
57
58	strscpy(coredev->ir.phys, coredev->devpath, sizeof(coredev->ir.phys));
59	strlcat(coredev->ir.phys, "/ir0", sizeof(coredev->ir.phys));
60
61	dev->device_name = coredev->ir.name;
62	dev->input_phys = coredev->ir.phys;
63	dev->dev.parent = coredev->device;
64
65#if 0
66	/* TODO: properly initialize the parameters below */
67	dev->input_id.bustype = BUS_USB;
68	dev->input_id.version = 1;
69	dev->input_id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor);
70	dev->input_id.product = le16_to_cpu(dev->udev->descriptor.idProduct);
71#endif
72
73	dev->priv = coredev;
74	dev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
75	dev->map_name = sms_get_board(board_id)->rc_codes;
76	dev->driver_name = MODULE_NAME;
77
78	pr_debug("Input device (IR) %s is set for key events\n",
79		 dev->device_name);
80
81	err = rc_register_device(dev);
82	if (err < 0) {
83		pr_err("Failed to register device\n");
84		rc_free_device(dev);
85		return err;
86	}
87
88	coredev->ir.dev = dev;
89	return 0;
90}
91
92void sms_ir_exit(struct smscore_device_t *coredev)
93{
94	rc_unregister_device(coredev->ir.dev);
95
96	pr_debug("\n");
97}
98