Contiki-NG
ipso-leds-control.c
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1 /*
2  * Copyright (c) 2015, Yanzi Networks AB.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holder nor the names of its
14  * contributors may be used to endorse or promote products derived
15  * from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28  * OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 /**
32  * \addtogroup ipso-objects
33  * @{
34  *
35  */
36 
37 /**
38  * \file
39  * Implementation of OMA LWM2M / IPSO Light Control for LEDs
40  * \author
41  * Joakim Eriksson <joakime@sics.se>
42  * Niclas Finne <nfi@sics.se>
43  */
44 
45 #include "lwm2m-object.h"
46 #include "lwm2m-engine.h"
47 #include "ipso-control-template.h"
48 #include "dev/leds.h"
49 #include <stdint.h>
50 
51 #define DEBUG 0
52 #if DEBUG
53 #include <stdio.h>
54 #define PRINTF(...) printf(__VA_ARGS__)
55 #else
56 #define PRINTF(...)
57 #endif
58 
59 #if LEDS_LEGACY_API
60 #if LEDS_ALL & LEDS_BLUE || LEDS_ALL & LEDS_RED || LEDS_ALL & LEDS_BLUE
61 #define LEDS_CONTROL_NUMBER (((LEDS_ALL & LEDS_BLUE) ? 1 : 0) + ((LEDS_ALL & LEDS_RED) ? 1 : 0) + ((LEDS_ALL & LEDS_GREEN) ? 1 : 0))
62 #else
63 #define LEDS_CONTROL_NUMBER 1
64 #endif
65 #else /* LEDS_LEGACY_API */
66 #define LEDS_CONTROL_NUMBER LEDS_COUNT
67 #endif /* LEDS_LEGACY_API */
68 
69 typedef struct led_state {
70  ipso_control_t control;
71  uint8_t led_value;
72 } led_state_t;
73 
74 static led_state_t leds_controls[LEDS_CONTROL_NUMBER];
75 /*---------------------------------------------------------------------------*/
76 static lwm2m_status_t
77 set_value(ipso_control_t *control, uint8_t value)
78 {
79 #if PLATFORM_HAS_LEDS || LEDS_COUNT
80  led_state_t *state;
81 
82  state = (led_state_t *)control;
83 
84  if(value) {
85  leds_on(state->led_value);
86  } else {
87  leds_off(state->led_value);
88  }
89 #endif /* PLATFORM_HAS_LEDS */
90 
91  return LWM2M_STATUS_OK;
92 }
93 /*---------------------------------------------------------------------------*/
94 static int
95 bit_no(int bit)
96 {
97  int i;
98  for(i = 0; i < 8; i++) {
99  if(LEDS_ALL & (1 << i)) {
100  if(bit == 0) {
101  /* matching bit */
102  return 1 << i;
103  } else {
104  /* matching but used */
105  bit--;
106  }
107  }
108  }
109  return 0;
110 }
111 /*---------------------------------------------------------------------------*/
112 void
113 ipso_leds_control_init(void)
114 {
115  ipso_control_t *c;
116  int i;
117 
118  /* Initialize the instances */
119  for(i = 0; i < LEDS_CONTROL_NUMBER; i++) {
120  c = &leds_controls[i].control;
121  c->reg_object.object_id = 3311;
122  c->reg_object.instance_id = i;
123  c->set_value = set_value;
124  leds_controls[i].led_value = bit_no(i);
125  ipso_control_add(c);
126  }
127 
128  PRINTF("IPSO leds control initialized with %u instances\n",
129  LEDS_CONTROL_NUMBER);
130 }
131 /*---------------------------------------------------------------------------*/
132 /** @} */
Implementation of OMA LWM2M / IPSO sensor template.
Header file for the LWM2M object API
void leds_on(unsigned char leds)
Turn on multiple LEDs.
Definition: minileds.c:63
#define LEDS_ALL
The OR mask representation of all device LEDs.
Definition: leds.h:195
void leds_off(unsigned char leds)
Turn off multiple LEDs.
Definition: minileds.c:69
Header file for the Contiki OMA LWM2M engine
Header file for the LED HAL.