1 /*
2  * rtc.h  --  RTC driver for Wolfson WM8350 PMIC
3  *
4  * Copyright 2007 Wolfson Microelectronics PLC
5  *
6  *  This program is free software; you can redistribute  it and/or modify it
7  *  under  the terms of  the GNU General  Public License as published by the
8  *  Free Software Foundation;  either version 2 of the  License, or (at your
9  *  option) any later version.
10  */
11 
12 #ifndef __LINUX_MFD_WM8350_RTC_H
13 #define __LINUX_MFD_WM8350_RTC_H
14 
15 #include <linux/platform_device.h>
16 
17 /*
18  * Register values.
19  */
20 #define WM8350_RTC_SECONDS_MINUTES              0x10
21 #define WM8350_RTC_HOURS_DAY                    0x11
22 #define WM8350_RTC_DATE_MONTH                   0x12
23 #define WM8350_RTC_YEAR                         0x13
24 #define WM8350_ALARM_SECONDS_MINUTES            0x14
25 #define WM8350_ALARM_HOURS_DAY                  0x15
26 #define WM8350_ALARM_DATE_MONTH                 0x16
27 #define WM8350_RTC_TIME_CONTROL                 0x17
28 
29 /*
30  * R16 (0x10) - RTC Seconds/Minutes
31  */
32 #define WM8350_RTC_MINS_MASK                    0x7F00
33 #define WM8350_RTC_MINS_SHIFT                        8
34 #define WM8350_RTC_SECS_MASK                    0x007F
35 #define WM8350_RTC_SECS_SHIFT                        0
36 
37 /*
38  * R17 (0x11) - RTC Hours/Day
39  */
40 #define WM8350_RTC_DAY_MASK                     0x0700
41 #define WM8350_RTC_DAY_SHIFT                         8
42 #define WM8350_RTC_HPM_MASK                     0x0020
43 #define WM8350_RTC_HPM_SHIFT                         5
44 #define WM8350_RTC_HRS_MASK                     0x001F
45 #define WM8350_RTC_HRS_SHIFT                         0
46 
47 /* Bit values for R21 (0x15) */
48 #define WM8350_RTC_DAY_SUN                           1
49 #define WM8350_RTC_DAY_MON                           2
50 #define WM8350_RTC_DAY_TUE                           3
51 #define WM8350_RTC_DAY_WED                           4
52 #define WM8350_RTC_DAY_THU                           5
53 #define WM8350_RTC_DAY_FRI                           6
54 #define WM8350_RTC_DAY_SAT                           7
55 
56 #define WM8350_RTC_HPM_AM                            0
57 #define WM8350_RTC_HPM_PM                            1
58 
59 /*
60  * R18 (0x12) - RTC Date/Month
61  */
62 #define WM8350_RTC_MTH_MASK                     0x1F00
63 #define WM8350_RTC_MTH_SHIFT                         8
64 #define WM8350_RTC_DATE_MASK                    0x003F
65 #define WM8350_RTC_DATE_SHIFT                        0
66 
67 /* Bit values for R22 (0x16) */
68 #define WM8350_RTC_MTH_JAN                           1
69 #define WM8350_RTC_MTH_FEB                           2
70 #define WM8350_RTC_MTH_MAR                           3
71 #define WM8350_RTC_MTH_APR                           4
72 #define WM8350_RTC_MTH_MAY                           5
73 #define WM8350_RTC_MTH_JUN                           6
74 #define WM8350_RTC_MTH_JUL                           7
75 #define WM8350_RTC_MTH_AUG                           8
76 #define WM8350_RTC_MTH_SEP                           9
77 #define WM8350_RTC_MTH_OCT                          10
78 #define WM8350_RTC_MTH_NOV                          11
79 #define WM8350_RTC_MTH_DEC                          12
80 #define WM8350_RTC_MTH_JAN_BCD                    0x01
81 #define WM8350_RTC_MTH_FEB_BCD                    0x02
82 #define WM8350_RTC_MTH_MAR_BCD                    0x03
83 #define WM8350_RTC_MTH_APR_BCD                    0x04
84 #define WM8350_RTC_MTH_MAY_BCD                    0x05
85 #define WM8350_RTC_MTH_JUN_BCD                    0x06
86 #define WM8350_RTC_MTH_JUL_BCD                    0x07
87 #define WM8350_RTC_MTH_AUG_BCD                    0x08
88 #define WM8350_RTC_MTH_SEP_BCD                    0x09
89 #define WM8350_RTC_MTH_OCT_BCD                    0x10
90 #define WM8350_RTC_MTH_NOV_BCD                    0x11
91 #define WM8350_RTC_MTH_DEC_BCD                    0x12
92 
93 /*
94  * R19 (0x13) - RTC Year
95  */
96 #define WM8350_RTC_YHUNDREDS_MASK               0x3F00
97 #define WM8350_RTC_YHUNDREDS_SHIFT                   8
98 #define WM8350_RTC_YUNITS_MASK                  0x00FF
99 #define WM8350_RTC_YUNITS_SHIFT                      0
100 
101 /*
102  * R20 (0x14) - Alarm Seconds/Minutes
103  */
104 #define WM8350_RTC_ALMMINS_MASK                 0x7F00
105 #define WM8350_RTC_ALMMINS_SHIFT                     8
106 #define WM8350_RTC_ALMSECS_MASK                 0x007F
107 #define WM8350_RTC_ALMSECS_SHIFT                     0
108 
109 /* Bit values for R20 (0x14) */
110 #define WM8350_RTC_ALMMINS_DONT_CARE                -1
111 #define WM8350_RTC_ALMSECS_DONT_CARE                -1
112 
113 /*
114  * R21 (0x15) - Alarm Hours/Day
115  */
116 #define WM8350_RTC_ALMDAY_MASK                  0x0F00
117 #define WM8350_RTC_ALMDAY_SHIFT                      8
118 #define WM8350_RTC_ALMHPM_MASK                  0x0020
119 #define WM8350_RTC_ALMHPM_SHIFT                      5
120 #define WM8350_RTC_ALMHRS_MASK                  0x001F
121 #define WM8350_RTC_ALMHRS_SHIFT                      0
122 
123 /* Bit values for R21 (0x15) */
124 #define WM8350_RTC_ALMDAY_DONT_CARE                 -1
125 #define WM8350_RTC_ALMDAY_SUN                        1
126 #define WM8350_RTC_ALMDAY_MON                        2
127 #define WM8350_RTC_ALMDAY_TUE                        3
128 #define WM8350_RTC_ALMDAY_WED                        4
129 #define WM8350_RTC_ALMDAY_THU                        5
130 #define WM8350_RTC_ALMDAY_FRI                        6
131 #define WM8350_RTC_ALMDAY_SAT                        7
132 
133 #define WM8350_RTC_ALMHPM_AM                         0
134 #define WM8350_RTC_ALMHPM_PM                         1
135 
136 #define WM8350_RTC_ALMHRS_DONT_CARE                 -1
137 
138 /*
139  * R22 (0x16) - Alarm Date/Month
140  */
141 #define WM8350_RTC_ALMMTH_MASK                  0x1F00
142 #define WM8350_RTC_ALMMTH_SHIFT                      8
143 #define WM8350_RTC_ALMDATE_MASK                 0x003F
144 #define WM8350_RTC_ALMDATE_SHIFT                     0
145 
146 /* Bit values for R22 (0x16) */
147 #define WM8350_RTC_ALMDATE_DONT_CARE                -1
148 
149 #define WM8350_RTC_ALMMTH_DONT_CARE                 -1
150 #define WM8350_RTC_ALMMTH_JAN                        1
151 #define WM8350_RTC_ALMMTH_FEB                        2
152 #define WM8350_RTC_ALMMTH_MAR                        3
153 #define WM8350_RTC_ALMMTH_APR                        4
154 #define WM8350_RTC_ALMMTH_MAY                        5
155 #define WM8350_RTC_ALMMTH_JUN                        6
156 #define WM8350_RTC_ALMMTH_JUL                        7
157 #define WM8350_RTC_ALMMTH_AUG                        8
158 #define WM8350_RTC_ALMMTH_SEP                        9
159 #define WM8350_RTC_ALMMTH_OCT                       10
160 #define WM8350_RTC_ALMMTH_NOV                       11
161 #define WM8350_RTC_ALMMTH_DEC                       12
162 #define WM8350_RTC_ALMMTH_JAN_BCD                 0x01
163 #define WM8350_RTC_ALMMTH_FEB_BCD                 0x02
164 #define WM8350_RTC_ALMMTH_MAR_BCD                 0x03
165 #define WM8350_RTC_ALMMTH_APR_BCD                 0x04
166 #define WM8350_RTC_ALMMTH_MAY_BCD                 0x05
167 #define WM8350_RTC_ALMMTH_JUN_BCD                 0x06
168 #define WM8350_RTC_ALMMTH_JUL_BCD                 0x07
169 #define WM8350_RTC_ALMMTH_AUG_BCD                 0x08
170 #define WM8350_RTC_ALMMTH_SEP_BCD                 0x09
171 #define WM8350_RTC_ALMMTH_OCT_BCD                 0x10
172 #define WM8350_RTC_ALMMTH_NOV_BCD                 0x11
173 #define WM8350_RTC_ALMMTH_DEC_BCD                 0x12
174 
175 /*
176  * R23 (0x17) - RTC Time Control
177  */
178 #define WM8350_RTC_BCD                          0x8000
179 #define WM8350_RTC_BCD_MASK                     0x8000
180 #define WM8350_RTC_BCD_SHIFT                        15
181 #define WM8350_RTC_12HR                         0x4000
182 #define WM8350_RTC_12HR_MASK                    0x4000
183 #define WM8350_RTC_12HR_SHIFT                       14
184 #define WM8350_RTC_DST                          0x2000
185 #define WM8350_RTC_DST_MASK                     0x2000
186 #define WM8350_RTC_DST_SHIFT                        13
187 #define WM8350_RTC_SET                          0x0800
188 #define WM8350_RTC_SET_MASK                     0x0800
189 #define WM8350_RTC_SET_SHIFT                        11
190 #define WM8350_RTC_STS                          0x0400
191 #define WM8350_RTC_STS_MASK                     0x0400
192 #define WM8350_RTC_STS_SHIFT                        10
193 #define WM8350_RTC_ALMSET                       0x0200
194 #define WM8350_RTC_ALMSET_MASK                  0x0200
195 #define WM8350_RTC_ALMSET_SHIFT                      9
196 #define WM8350_RTC_ALMSTS                       0x0100
197 #define WM8350_RTC_ALMSTS_MASK                  0x0100
198 #define WM8350_RTC_ALMSTS_SHIFT                      8
199 #define WM8350_RTC_PINT                         0x0070
200 #define WM8350_RTC_PINT_MASK                    0x0070
201 #define WM8350_RTC_PINT_SHIFT                        4
202 #define WM8350_RTC_DSW                          0x000F
203 #define WM8350_RTC_DSW_MASK                     0x000F
204 #define WM8350_RTC_DSW_SHIFT                         0
205 
206 /* Bit values for R23 (0x17) */
207 #define WM8350_RTC_BCD_BINARY                        0
208 #define WM8350_RTC_BCD_BCD                           1
209 
210 #define WM8350_RTC_12HR_24HR                         0
211 #define WM8350_RTC_12HR_12HR                         1
212 
213 #define WM8350_RTC_DST_DISABLED                      0
214 #define WM8350_RTC_DST_ENABLED                       1
215 
216 #define WM8350_RTC_SET_RUN                           0
217 #define WM8350_RTC_SET_SET                           1
218 
219 #define WM8350_RTC_STS_RUNNING                       0
220 #define WM8350_RTC_STS_STOPPED                       1
221 
222 #define WM8350_RTC_ALMSET_RUN                        0
223 #define WM8350_RTC_ALMSET_SET                        1
224 
225 #define WM8350_RTC_ALMSTS_RUNNING                    0
226 #define WM8350_RTC_ALMSTS_STOPPED                    1
227 
228 #define WM8350_RTC_PINT_DISABLED                     0
229 #define WM8350_RTC_PINT_SECS                         1
230 #define WM8350_RTC_PINT_MINS                         2
231 #define WM8350_RTC_PINT_HRS                          3
232 #define WM8350_RTC_PINT_DAYS                         4
233 #define WM8350_RTC_PINT_MTHS                         5
234 
235 #define WM8350_RTC_DSW_DISABLED                      0
236 #define WM8350_RTC_DSW_1HZ                           1
237 #define WM8350_RTC_DSW_2HZ                           2
238 #define WM8350_RTC_DSW_4HZ                           3
239 #define WM8350_RTC_DSW_8HZ                           4
240 #define WM8350_RTC_DSW_16HZ                          5
241 #define WM8350_RTC_DSW_32HZ                          6
242 #define WM8350_RTC_DSW_64HZ                          7
243 #define WM8350_RTC_DSW_128HZ                         8
244 #define WM8350_RTC_DSW_256HZ                         9
245 #define WM8350_RTC_DSW_512HZ                        10
246 #define WM8350_RTC_DSW_1024HZ                       11
247 
248 /*
249  * R218 (0xDA) - RTC Tick Control
250  */
251 #define WM8350_RTC_TICKSTS                      0x4000
252 #define WM8350_RTC_CLKSRC                       0x2000
253 #define WM8350_RTC_TRIM_MASK                    0x03FF
254 
255 /*
256  * RTC Interrupts.
257  */
258 #define WM8350_IRQ_RTC_PER			7
259 #define WM8350_IRQ_RTC_SEC			8
260 #define WM8350_IRQ_RTC_ALM			9
261 
262 struct wm8350_rtc {
263 	struct platform_device *pdev;
264 	struct rtc_device *rtc;
265 	int alarm_enabled;      /* used over suspend/resume */
266 	int update_enabled;
267 };
268 
269 #endif
270