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gpio.h
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1 /*
2  * gpio.h -- GPIO 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 
13 #ifndef __LINUX_MFD_WM8350_GPIO_H_
14 #define __LINUX_MFD_WM8350_GPIO_H_
15 
16 #include <linux/platform_device.h>
17 
18 /*
19  * GPIO Registers.
20  */
21 #define WM8350_GPIO_DEBOUNCE 0x80
22 #define WM8350_GPIO_PIN_PULL_UP_CONTROL 0x81
23 #define WM8350_GPIO_PULL_DOWN_CONTROL 0x82
24 #define WM8350_GPIO_INT_MODE 0x83
25 #define WM8350_GPIO_CONTROL 0x85
26 #define WM8350_GPIO_CONFIGURATION_I_O 0x86
27 #define WM8350_GPIO_PIN_POLARITY_TYPE 0x87
28 #define WM8350_GPIO_FUNCTION_SELECT_1 0x8C
29 #define WM8350_GPIO_FUNCTION_SELECT_2 0x8D
30 #define WM8350_GPIO_FUNCTION_SELECT_3 0x8E
31 #define WM8350_GPIO_FUNCTION_SELECT_4 0x8F
32 #define WM8350_GPIO_LEVEL 0xE6
33 
34 /*
35  * GPIO Functions
36  */
37 #define WM8350_GPIO0_GPIO_IN 0x0
38 #define WM8350_GPIO0_GPIO_OUT 0x0
39 #define WM8350_GPIO0_PWR_ON_IN 0x1
40 #define WM8350_GPIO0_PWR_ON_OUT 0x1
41 #define WM8350_GPIO0_LDO_EN_IN 0x2
42 #define WM8350_GPIO0_VRTC_OUT 0x2
43 #define WM8350_GPIO0_LPWR1_IN 0x3
44 #define WM8350_GPIO0_POR_B_OUT 0x3
45 
46 #define WM8350_GPIO1_GPIO_IN 0x0
47 #define WM8350_GPIO1_GPIO_OUT 0x0
48 #define WM8350_GPIO1_PWR_ON_IN 0x1
49 #define WM8350_GPIO1_DO_CONF_OUT 0x1
50 #define WM8350_GPIO1_LDO_EN_IN 0x2
51 #define WM8350_GPIO1_RESET_OUT 0x2
52 #define WM8350_GPIO1_LPWR2_IN 0x3
53 #define WM8350_GPIO1_MEMRST_OUT 0x3
54 
55 #define WM8350_GPIO2_GPIO_IN 0x0
56 #define WM8350_GPIO2_GPIO_OUT 0x0
57 #define WM8350_GPIO2_PWR_ON_IN 0x1
58 #define WM8350_GPIO2_PWR_ON_OUT 0x1
59 #define WM8350_GPIO2_WAKE_UP_IN 0x2
60 #define WM8350_GPIO2_VRTC_OUT 0x2
61 #define WM8350_GPIO2_32KHZ_IN 0x3
62 #define WM8350_GPIO2_32KHZ_OUT 0x3
63 
64 #define WM8350_GPIO3_GPIO_IN 0x0
65 #define WM8350_GPIO3_GPIO_OUT 0x0
66 #define WM8350_GPIO3_PWR_ON_IN 0x1
67 #define WM8350_GPIO3_P_CLK_OUT 0x1
68 #define WM8350_GPIO3_LDO_EN_IN 0x2
69 #define WM8350_GPIO3_VRTC_OUT 0x2
70 #define WM8350_GPIO3_PWR_OFF_IN 0x3
71 #define WM8350_GPIO3_32KHZ_OUT 0x3
72 
73 #define WM8350_GPIO4_GPIO_IN 0x0
74 #define WM8350_GPIO4_GPIO_OUT 0x0
75 #define WM8350_GPIO4_MR_IN 0x1
76 #define WM8350_GPIO4_MEM_RST_OUT 0x1
77 #define WM8350_GPIO4_FLASH_IN 0x2
78 #define WM8350_GPIO4_ADA_OUT 0x2
79 #define WM8350_GPIO4_HIBERNATE_IN 0x3
80 #define WM8350_GPIO4_FLASH_OUT 0x3
81 #define WM8350_GPIO4_MICDET_OUT 0x4
82 #define WM8350_GPIO4_MICSHT_OUT 0x5
83 
84 #define WM8350_GPIO5_GPIO_IN 0x0
85 #define WM8350_GPIO5_GPIO_OUT 0x0
86 #define WM8350_GPIO5_LPWR1_IN 0x1
87 #define WM8350_GPIO5_P_CLK_OUT 0x1
88 #define WM8350_GPIO5_ADCLRCLK_IN 0x2
89 #define WM8350_GPIO5_ADCLRCLK_OUT 0x2
90 #define WM8350_GPIO5_HIBERNATE_IN 0x3
91 #define WM8350_GPIO5_32KHZ_OUT 0x3
92 #define WM8350_GPIO5_MICDET_OUT 0x4
93 #define WM8350_GPIO5_MICSHT_OUT 0x5
94 #define WM8350_GPIO5_ADA_OUT 0x6
95 #define WM8350_GPIO5_OPCLK_OUT 0x7
96 
97 #define WM8350_GPIO6_GPIO_IN 0x0
98 #define WM8350_GPIO6_GPIO_OUT 0x0
99 #define WM8350_GPIO6_LPWR2_IN 0x1
100 #define WM8350_GPIO6_MEMRST_OUT 0x1
101 #define WM8350_GPIO6_FLASH_IN 0x2
102 #define WM8350_GPIO6_ADA_OUT 0x2
103 #define WM8350_GPIO6_HIBERNATE_IN 0x3
104 #define WM8350_GPIO6_RTC_OUT 0x3
105 #define WM8350_GPIO6_MICDET_OUT 0x4
106 #define WM8350_GPIO6_MICSHT_OUT 0x5
107 #define WM8350_GPIO6_ADCLRCLKB_OUT 0x6
108 #define WM8350_GPIO6_SDOUT_OUT 0x7
109 
110 #define WM8350_GPIO7_GPIO_IN 0x0
111 #define WM8350_GPIO7_GPIO_OUT 0x0
112 #define WM8350_GPIO7_LPWR3_IN 0x1
113 #define WM8350_GPIO7_P_CLK_OUT 0x1
114 #define WM8350_GPIO7_MASK_IN 0x2
115 #define WM8350_GPIO7_VCC_FAULT_OUT 0x2
116 #define WM8350_GPIO7_HIBERNATE_IN 0x3
117 #define WM8350_GPIO7_BATT_FAULT_OUT 0x3
118 #define WM8350_GPIO7_MICDET_OUT 0x4
119 #define WM8350_GPIO7_MICSHT_OUT 0x5
120 #define WM8350_GPIO7_ADA_OUT 0x6
121 #define WM8350_GPIO7_CSB_IN 0x7
122 
123 #define WM8350_GPIO8_GPIO_IN 0x0
124 #define WM8350_GPIO8_GPIO_OUT 0x0
125 #define WM8350_GPIO8_MR_IN 0x1
126 #define WM8350_GPIO8_VCC_FAULT_OUT 0x1
127 #define WM8350_GPIO8_ADCBCLK_IN 0x2
128 #define WM8350_GPIO8_ADCBCLK_OUT 0x2
129 #define WM8350_GPIO8_PWR_OFF_IN 0x3
130 #define WM8350_GPIO8_BATT_FAULT_OUT 0x3
131 #define WM8350_GPIO8_ALTSCL_IN 0xf
132 
133 #define WM8350_GPIO9_GPIO_IN 0x0
134 #define WM8350_GPIO9_GPIO_OUT 0x0
135 #define WM8350_GPIO9_HEARTBEAT_IN 0x1
136 #define WM8350_GPIO9_VCC_FAULT_OUT 0x1
137 #define WM8350_GPIO9_MASK_IN 0x2
138 #define WM8350_GPIO9_LINE_GT_BATT_OUT 0x2
139 #define WM8350_GPIO9_PWR_OFF_IN 0x3
140 #define WM8350_GPIO9_BATT_FAULT_OUT 0x3
141 #define WM8350_GPIO9_ALTSDA_OUT 0xf
142 
143 #define WM8350_GPIO10_GPIO_IN 0x0
144 #define WM8350_GPIO10_GPIO_OUT 0x0
145 #define WM8350_GPIO10_ISINKC_OUT 0x1
146 #define WM8350_GPIO10_PWR_OFF_IN 0x2
147 #define WM8350_GPIO10_LINE_GT_BATT_OUT 0x2
148 #define WM8350_GPIO10_CHD_IND_IN 0x3
149 
150 #define WM8350_GPIO11_GPIO_IN 0x0
151 #define WM8350_GPIO11_GPIO_OUT 0x0
152 #define WM8350_GPIO11_ISINKD_OUT 0x1
153 #define WM8350_GPIO11_WAKEUP_IN 0x2
154 #define WM8350_GPIO11_LINE_GT_BATT_OUT 0x2
155 #define WM8350_GPIO11_CHD_IND_IN 0x3
156 
157 #define WM8350_GPIO12_GPIO_IN 0x0
158 #define WM8350_GPIO12_GPIO_OUT 0x0
159 #define WM8350_GPIO12_ISINKE_OUT 0x1
160 #define WM8350_GPIO12_LINE_GT_BATT_OUT 0x2
161 #define WM8350_GPIO12_LINE_EN_OUT 0x3
162 #define WM8350_GPIO12_32KHZ_OUT 0x4
163 
164 #define WM8350_GPIO_DIR_IN 0
165 #define WM8350_GPIO_DIR_OUT 1
166 #define WM8350_GPIO_ACTIVE_LOW 0
167 #define WM8350_GPIO_ACTIVE_HIGH 1
168 #define WM8350_GPIO_PULL_NONE 0
169 #define WM8350_GPIO_PULL_UP 1
170 #define WM8350_GPIO_PULL_DOWN 2
171 #define WM8350_GPIO_INVERT_OFF 0
172 #define WM8350_GPIO_INVERT_ON 1
173 #define WM8350_GPIO_DEBOUNCE_OFF 0
174 #define WM8350_GPIO_DEBOUNCE_ON 1
175 
176 /*
177  * R30 (0x1E) - GPIO Interrupt Status
178  */
179 #define WM8350_GP12_EINT 0x1000
180 #define WM8350_GP11_EINT 0x0800
181 #define WM8350_GP10_EINT 0x0400
182 #define WM8350_GP9_EINT 0x0200
183 #define WM8350_GP8_EINT 0x0100
184 #define WM8350_GP7_EINT 0x0080
185 #define WM8350_GP6_EINT 0x0040
186 #define WM8350_GP5_EINT 0x0020
187 #define WM8350_GP4_EINT 0x0010
188 #define WM8350_GP3_EINT 0x0008
189 #define WM8350_GP2_EINT 0x0004
190 #define WM8350_GP1_EINT 0x0002
191 #define WM8350_GP0_EINT 0x0001
192 
193 
194 /*
195  * R128 (0x80) - GPIO Debounce
196  */
197 #define WM8350_GP12_DB 0x1000
198 #define WM8350_GP11_DB 0x0800
199 #define WM8350_GP10_DB 0x0400
200 #define WM8350_GP9_DB 0x0200
201 #define WM8350_GP8_DB 0x0100
202 #define WM8350_GP7_DB 0x0080
203 #define WM8350_GP6_DB 0x0040
204 #define WM8350_GP5_DB 0x0020
205 #define WM8350_GP4_DB 0x0010
206 #define WM8350_GP3_DB 0x0008
207 #define WM8350_GP2_DB 0x0004
208 #define WM8350_GP1_DB 0x0002
209 #define WM8350_GP0_DB 0x0001
210 
211 /*
212  * R129 (0x81) - GPIO Pin pull up Control
213  */
214 #define WM8350_GP12_PU 0x1000
215 #define WM8350_GP11_PU 0x0800
216 #define WM8350_GP10_PU 0x0400
217 #define WM8350_GP9_PU 0x0200
218 #define WM8350_GP8_PU 0x0100
219 #define WM8350_GP7_PU 0x0080
220 #define WM8350_GP6_PU 0x0040
221 #define WM8350_GP5_PU 0x0020
222 #define WM8350_GP4_PU 0x0010
223 #define WM8350_GP3_PU 0x0008
224 #define WM8350_GP2_PU 0x0004
225 #define WM8350_GP1_PU 0x0002
226 #define WM8350_GP0_PU 0x0001
227 
228 /*
229  * R130 (0x82) - GPIO Pull down Control
230  */
231 #define WM8350_GP12_PD 0x1000
232 #define WM8350_GP11_PD 0x0800
233 #define WM8350_GP10_PD 0x0400
234 #define WM8350_GP9_PD 0x0200
235 #define WM8350_GP8_PD 0x0100
236 #define WM8350_GP7_PD 0x0080
237 #define WM8350_GP6_PD 0x0040
238 #define WM8350_GP5_PD 0x0020
239 #define WM8350_GP4_PD 0x0010
240 #define WM8350_GP3_PD 0x0008
241 #define WM8350_GP2_PD 0x0004
242 #define WM8350_GP1_PD 0x0002
243 #define WM8350_GP0_PD 0x0001
244 
245 /*
246  * R131 (0x83) - GPIO Interrupt Mode
247  */
248 #define WM8350_GP12_INTMODE 0x1000
249 #define WM8350_GP11_INTMODE 0x0800
250 #define WM8350_GP10_INTMODE 0x0400
251 #define WM8350_GP9_INTMODE 0x0200
252 #define WM8350_GP8_INTMODE 0x0100
253 #define WM8350_GP7_INTMODE 0x0080
254 #define WM8350_GP6_INTMODE 0x0040
255 #define WM8350_GP5_INTMODE 0x0020
256 #define WM8350_GP4_INTMODE 0x0010
257 #define WM8350_GP3_INTMODE 0x0008
258 #define WM8350_GP2_INTMODE 0x0004
259 #define WM8350_GP1_INTMODE 0x0002
260 #define WM8350_GP0_INTMODE 0x0001
261 
262 /*
263  * R133 (0x85) - GPIO Control
264  */
265 #define WM8350_GP_DBTIME_MASK 0x00C0
266 
267 /*
268  * R134 (0x86) - GPIO Configuration (i/o)
269  */
270 #define WM8350_GP12_DIR 0x1000
271 #define WM8350_GP11_DIR 0x0800
272 #define WM8350_GP10_DIR 0x0400
273 #define WM8350_GP9_DIR 0x0200
274 #define WM8350_GP8_DIR 0x0100
275 #define WM8350_GP7_DIR 0x0080
276 #define WM8350_GP6_DIR 0x0040
277 #define WM8350_GP5_DIR 0x0020
278 #define WM8350_GP4_DIR 0x0010
279 #define WM8350_GP3_DIR 0x0008
280 #define WM8350_GP2_DIR 0x0004
281 #define WM8350_GP1_DIR 0x0002
282 #define WM8350_GP0_DIR 0x0001
283 
284 /*
285  * R135 (0x87) - GPIO Pin Polarity / Type
286  */
287 #define WM8350_GP12_CFG 0x1000
288 #define WM8350_GP11_CFG 0x0800
289 #define WM8350_GP10_CFG 0x0400
290 #define WM8350_GP9_CFG 0x0200
291 #define WM8350_GP8_CFG 0x0100
292 #define WM8350_GP7_CFG 0x0080
293 #define WM8350_GP6_CFG 0x0040
294 #define WM8350_GP5_CFG 0x0020
295 #define WM8350_GP4_CFG 0x0010
296 #define WM8350_GP3_CFG 0x0008
297 #define WM8350_GP2_CFG 0x0004
298 #define WM8350_GP1_CFG 0x0002
299 #define WM8350_GP0_CFG 0x0001
300 
301 /*
302  * R140 (0x8C) - GPIO Function Select 1
303  */
304 #define WM8350_GP3_FN_MASK 0xF000
305 #define WM8350_GP2_FN_MASK 0x0F00
306 #define WM8350_GP1_FN_MASK 0x00F0
307 #define WM8350_GP0_FN_MASK 0x000F
308 
309 /*
310  * R141 (0x8D) - GPIO Function Select 2
311  */
312 #define WM8350_GP7_FN_MASK 0xF000
313 #define WM8350_GP6_FN_MASK 0x0F00
314 #define WM8350_GP5_FN_MASK 0x00F0
315 #define WM8350_GP4_FN_MASK 0x000F
316 
317 /*
318  * R142 (0x8E) - GPIO Function Select 3
319  */
320 #define WM8350_GP11_FN_MASK 0xF000
321 #define WM8350_GP10_FN_MASK 0x0F00
322 #define WM8350_GP9_FN_MASK 0x00F0
323 #define WM8350_GP8_FN_MASK 0x000F
324 
325 /*
326  * R143 (0x8F) - GPIO Function Select 4
327  */
328 #define WM8350_GP12_FN_MASK 0x000F
329 
330 /*
331  * R230 (0xE6) - GPIO Pin Status
332  */
333 #define WM8350_GP12_LVL 0x1000
334 #define WM8350_GP11_LVL 0x0800
335 #define WM8350_GP10_LVL 0x0400
336 #define WM8350_GP9_LVL 0x0200
337 #define WM8350_GP8_LVL 0x0100
338 #define WM8350_GP7_LVL 0x0080
339 #define WM8350_GP6_LVL 0x0040
340 #define WM8350_GP5_LVL 0x0020
341 #define WM8350_GP4_LVL 0x0010
342 #define WM8350_GP3_LVL 0x0008
343 #define WM8350_GP2_LVL 0x0004
344 #define WM8350_GP1_LVL 0x0002
345 #define WM8350_GP0_LVL 0x0001
346 
347 struct wm8350;
348 
349 int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,
350  int pol, int pull, int invert, int debounce);
351 
352 struct wm8350_gpio {
354 };
355 
356 /*
357  * GPIO Interrupts
358  */
359 #define WM8350_IRQ_GPIO(x) (50 + x)
360 
361 #endif