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 
sms_ir_event(struct smscore_device_t * coredev,const char * buf,int len)23 void 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 
sms_ir_init(struct smscore_device_t * coredev)39 int 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 
sms_ir_exit(struct smscore_device_t * coredev)92 void sms_ir_exit(struct smscore_device_t *coredev)
93 {
94 	rc_unregister_device(coredev->ir.dev);
95 
96 	pr_debug("\n");
97 }
98