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 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 DEFINE_IR_RAW_EVENT(ev); 30 31 ev.duration = abs(samples[i]) * 1000; /* Convert to ns */ 32 ev.pulse = (samples[i] > 0) ? false : true; 33 34 ir_raw_event_store(coredev->ir.dev, &ev); 35 } 36 ir_raw_event_handle(coredev->ir.dev); 37 } 38 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 = 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 strlcpy(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 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