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comparison chipsetsw/drivers/drv_app/kpd/kpd_virtual_key_table_mgt.c @ 0:509db1a7b7b8

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initial import: leo2moko-r1
author Space Falcon <falcon@ivan.Harhan.ORG>
date Mon, 01 Jun 2015 03:24:05 +0000
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-1:000000000000 0:509db1a7b7b8
1 /**
2 * @file kpd_virtual_key_table_mgt.c
3 *
4 * Coding of the access function to configuration keypad table.
5 * These functions allows to determine :
6 * - the ASCII value associated to a virtual key,
7 * - The virtual key ID associated to a physical key Id
8 *
9 *
10 * @author Laurent Sollier (l-sollier@ti.com)
11 * @version 0.1
12 */
13
14 /*
15 * History:
16 *
17 * Date Author Modification
18 * ----------------------------------------
19 * 10/10/2001 L Sollier Create
20 *
21 *
22 * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved
23 */
24
25 #include "kpd/kpd_virtual_key_table_mgt.h"
26 #include "kpd/kpd_virtual_key_table_def.h"
27
28
29 /**
30 * @name Virtual keys table management functions
31 *
32 */
33 /*@{*/
34
35 /**
36 * function: kpd_initialize_ascii_table
37 */
38 T_RV_RET kpd_initialize_ascii_table(void)
39 {
40 UINT8 i;
41 INT8 position = KPD_POS_NOT_AVAILABLE;
42 T_VIRTUAL_ASCII_TABLE table;
43
44 /* Copy all the table */
45 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
46 {
47 table[i].key_id = virtual_ascii_table[i].key_id;
48 table[i].default_value_p = virtual_ascii_table[i].default_value_p;
49 table[i].alphanumeric_value_p = virtual_ascii_table[i].alphanumeric_value_p;
50 }
51
52 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
53 {
54 if (table[i].key_id != KPD_KEY_NULL)
55 {
56 /* Retrieve virtual key position (define in fact the pkysical key Id) */
57 kpd_retrieve_virtual_key_position(table[i].key_id,
58 KPD_DEFAULT_MODE,
59 &position);
60
61 if (position == KPD_POS_NOT_AVAILABLE)
62 return RV_INTERNAL_ERR;
63
64 /* Update ASCII according to the physical key Id */
65 virtual_ascii_table[position].key_id = position;
66 virtual_ascii_table[position].default_value_p = table[i].default_value_p;
67 virtual_ascii_table[position].alphanumeric_value_p = table[i].alphanumeric_value_p;
68 }
69 }
70
71 return RV_OK;
72 }
73
74
75 /**
76 * function: kpd_get_virtual_key
77 */
78 T_KPD_VIRTUAL_KEY_ID kpd_get_virtual_key( T_KPD_PHYSICAL_KEY_ID key_id,
79 T_KPD_MODE mode)
80 {
81 return vpm_table[key_id][mode];
82 }
83
84
85 /**
86 * function: kpd_get_ascii_key_value
87 */
88 T_RV_RET kpd_get_ascii_key_value(T_KPD_PHYSICAL_KEY_ID key_id,
89 T_KPD_MODE mode,
90 char** ascii_code_pp)
91 {
92 /* Retrieve ASCII code according to the mode */
93 if (mode == KPD_DEFAULT_MODE)
94 *ascii_code_pp = virtual_ascii_table[key_id].default_value_p;
95 else if (mode == KPD_ALPHANUMERIC_MODE)
96 *ascii_code_pp = virtual_ascii_table[key_id].alphanumeric_value_p;
97 else
98 *ascii_code_pp = "";
99
100 return RV_OK;
101 }
102
103 /**
104 * function: kpd_retrieve_virtual_key_position
105 */
106 T_RV_RET kpd_retrieve_virtual_key_position( T_KPD_VIRTUAL_KEY_ID key_id,
107 T_KPD_MODE mode,
108 INT8* position_p)
109 {
110 T_RV_RET ret = RV_INVALID_PARAMETER;
111 INT8 i = 0;
112
113 *position_p = KPD_POS_NOT_AVAILABLE;
114
115 if (key_id != KPD_KEY_NULL)
116 {
117 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
118 if (vpm_table[i][mode] == key_id)
119 {
120 *position_p = i;
121 ret = RV_OK;
122 break;
123 }
124 }
125
126 return ret;
127 }
128
129
130 /**
131 * function: kpd_get_default_keys
132 */
133 T_RV_RET kpd_get_default_keys( T_KPD_VIRTUAL_KEY_TABLE* available_keys_p)
134 {
135 UINT8 nb_available_keys = 0;
136 UINT8 i;
137
138 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
139 {
140 if (vpm_table[i][KPD_DEFAULT_MODE] != KPD_KEY_NULL)
141 {
142 available_keys_p->notified_keys[nb_available_keys] = vpm_table[i][KPD_DEFAULT_MODE];
143 nb_available_keys++;
144 }
145 }
146 available_keys_p->nb_notified_keys = nb_available_keys;
147
148 return RV_OK;
149 }
150
151 /**
152 * function: kpd_check_key_table
153 */
154 T_RV_RET kpd_check_key_table(T_KPD_VIRTUAL_KEY_TABLE* keys_table_p, T_KPD_MODE mode)
155 {
156 UINT8 i;
157 INT8 position;
158 T_KPD_VIRTUAL_KEY_ID virtual_key;
159 UINT8 nb_notified_keys = 0;
160 T_RV_RET ret = RV_OK;
161
162 if (keys_table_p->nb_notified_keys == KPD_NB_PHYSICAL_KEYS)
163 {
164 /* Facility: if number of key is KPD_NB_PHYSICAL_KEYS, table of notified_keys
165 is automatically fulfilled */
166 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
167 {
168 virtual_key = kpd_get_virtual_key(i, mode);
169 if (virtual_key != KPD_KEY_NULL)
170 {
171 keys_table_p->notified_keys[nb_notified_keys] = virtual_key;
172 nb_notified_keys++;
173 }
174 }
175 keys_table_p->nb_notified_keys = nb_notified_keys;
176 }
177 else
178 {
179 /* In another case (number of key less than KPD_NB_PHYSICAL_KEYS), verify
180 that all the virtual keys are defined in the mode requested by the client */
181 for (i = 0; i < keys_table_p->nb_notified_keys; i++)
182 {
183 ret = kpd_retrieve_virtual_key_position(keys_table_p->notified_keys[i],
184 mode,
185 &position);
186 if ( (ret != RV_OK) || (keys_table_p->notified_keys[i] == KPD_KEY_NULL) )
187 return RV_INVALID_PARAMETER;
188 }
189 }
190 return RV_OK;
191 }
192
193 /**
194 * function: kpd_define_new_config
195 */
196 void kpd_define_new_config(T_KPD_VIRTUAL_KEY_TABLE* reference_keys_p,
197 T_KPD_VIRTUAL_KEY_TABLE* new_keys_p)
198 {
199 UINT8 i;
200 INT8 position;
201
202 /* Unset old values in the table */
203 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
204 vpm_table[i][KPD_MODE_CONFIG] = KPD_KEY_NULL;
205
206 /* Set values in the table */
207 for (i = 0; i < reference_keys_p->nb_notified_keys; i++)
208 {
209 /* */
210 kpd_retrieve_virtual_key_position(reference_keys_p->notified_keys[i],
211 KPD_DEFAULT_MODE,
212 &position);
213 vpm_table[position][KPD_MODE_CONFIG] = new_keys_p->notified_keys[i];
214 }
215 }
216
217 /**
218 * function: kpd_vpm_table_is_valid
219 */
220 BOOL kpd_vpm_table_is_valid(void)
221 {
222 UINT8 i;
223
224 for (i = 0; i < KPD_NB_PHYSICAL_KEYS; i++)
225 {
226 if (vpm_table[i][0] != i) return FALSE;
227 }
228
229 return TRUE;
230 }
231
232 /*@}*/