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