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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) ST-Ericsson SA 2010
4  *
5  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
6  */
7 
8 #ifndef __STMPE_H
9 #define __STMPE_H
10 
11 #include <linux/device.h>
12 #include <linux/mfd/core.h>
13 #include <linux/mfd/stmpe.h>
14 #include <linux/printk.h>
15 #include <linux/types.h>
16 
17 extern const struct dev_pm_ops stmpe_dev_pm_ops;
18 
19 #ifdef STMPE_DUMP_BYTES
stmpe_dump_bytes(const char * str,const void * buf,size_t len)20 static inline void stmpe_dump_bytes(const char *str, const void *buf,
21 				    size_t len)
22 {
23 	print_hex_dump_bytes(str, DUMP_PREFIX_OFFSET, buf, len);
24 }
25 #else
stmpe_dump_bytes(const char * str,const void * buf,size_t len)26 static inline void stmpe_dump_bytes(const char *str, const void *buf,
27 				    size_t len)
28 {
29 }
30 #endif
31 
32 /**
33  * struct stmpe_variant_block - information about block
34  * @cell:	base mfd cell
35  * @irq:	interrupt number to be added to each IORESOURCE_IRQ
36  *		in the cell
37  * @block:	block id; used for identification with platform data and for
38  *		enable and altfunc callbacks
39  */
40 struct stmpe_variant_block {
41 	const struct mfd_cell	*cell;
42 	int			irq;
43 	enum stmpe_block	block;
44 };
45 
46 /**
47  * struct stmpe_variant_info - variant-specific information
48  * @name:	part name
49  * @id_val:	content of CHIPID register
50  * @id_mask:	bits valid in CHIPID register for comparison with id_val
51  * @num_gpios:	number of GPIOS
52  * @af_bits:	number of bits used to specify the alternate function
53  * @regs: variant specific registers.
54  * @blocks:	list of blocks present on this device
55  * @num_blocks:	number of blocks present on this device
56  * @num_irqs:	number of internal IRQs available on this device
57  * @enable:	callback to enable the specified blocks.
58  *		Called with the I/O lock held.
59  * @get_altfunc: callback to get the alternate function number for the
60  *		 specific block
61  * @enable_autosleep: callback to configure autosleep with specified timeout
62  */
63 struct stmpe_variant_info {
64 	const char *name;
65 	u16 id_val;
66 	u16 id_mask;
67 	int num_gpios;
68 	int af_bits;
69 	const u8 *regs;
70 	struct stmpe_variant_block *blocks;
71 	int num_blocks;
72 	int num_irqs;
73 	int (*enable)(struct stmpe *stmpe, unsigned int blocks, bool enable);
74 	int (*get_altfunc)(struct stmpe *stmpe, enum stmpe_block block);
75 	int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout);
76 };
77 
78 /**
79  * struct stmpe_client_info - i2c or spi specific routines/info
80  * @data: client specific data
81  * @read_byte: read single byte
82  * @write_byte: write single byte
83  * @read_block: read block or multiple bytes
84  * @write_block: write block or multiple bytes
85  * @init: client init routine, called during probe
86  */
87 struct stmpe_client_info {
88 	void *data;
89 	int irq;
90 	void *client;
91 	struct device *dev;
92 	int (*read_byte)(struct stmpe *stmpe, u8 reg);
93 	int (*write_byte)(struct stmpe *stmpe, u8 reg, u8 val);
94 	int (*read_block)(struct stmpe *stmpe, u8 reg, u8 len, u8 *values);
95 	int (*write_block)(struct stmpe *stmpe, u8 reg, u8 len,
96 			const u8 *values);
97 	void (*init)(struct stmpe *stmpe);
98 };
99 
100 int stmpe_probe(struct stmpe_client_info *ci, enum stmpe_partnum partnum);
101 void stmpe_remove(struct stmpe *stmpe);
102 
103 #define STMPE_ICR_LSB_HIGH	(1 << 2)
104 #define STMPE_ICR_LSB_EDGE	(1 << 1)
105 #define STMPE_ICR_LSB_GIM	(1 << 0)
106 
107 #define STMPE_SYS_CTRL_RESET	(1 << 7)
108 #define STMPE_SYS_CTRL_INT_EN	(1 << 2)
109 #define STMPE_SYS_CTRL_INT_HI	(1 << 0)
110 
111 /*
112  * STMPE801
113  */
114 #define STMPE801_ID			0x0108
115 #define STMPE801_NR_INTERNAL_IRQS	1
116 
117 #define STMPE801_REG_CHIP_ID		0x00
118 #define STMPE801_REG_VERSION_ID		0x02
119 #define STMPE801_REG_SYS_CTRL		0x04
120 #define STMPE801_REG_GPIO_INT_EN	0x08
121 #define STMPE801_REG_GPIO_INT_STA	0x09
122 #define STMPE801_REG_GPIO_MP_STA	0x10
123 #define STMPE801_REG_GPIO_SET_PIN	0x11
124 #define STMPE801_REG_GPIO_DIR		0x12
125 
126 /*
127  * STMPE811
128  */
129 #define STMPE811_ID			0x0811
130 
131 #define STMPE811_IRQ_TOUCH_DET		0
132 #define STMPE811_IRQ_FIFO_TH		1
133 #define STMPE811_IRQ_FIFO_OFLOW		2
134 #define STMPE811_IRQ_FIFO_FULL		3
135 #define STMPE811_IRQ_FIFO_EMPTY		4
136 #define STMPE811_IRQ_TEMP_SENS		5
137 #define STMPE811_IRQ_ADC		6
138 #define STMPE811_IRQ_GPIOC		7
139 #define STMPE811_NR_INTERNAL_IRQS	8
140 
141 #define STMPE811_REG_CHIP_ID		0x00
142 #define STMPE811_REG_SYS_CTRL		0x03
143 #define STMPE811_REG_SYS_CTRL2		0x04
144 #define STMPE811_REG_SPI_CFG		0x08
145 #define STMPE811_REG_INT_CTRL		0x09
146 #define STMPE811_REG_INT_EN		0x0A
147 #define STMPE811_REG_INT_STA		0x0B
148 #define STMPE811_REG_GPIO_INT_EN	0x0C
149 #define STMPE811_REG_GPIO_INT_STA	0x0D
150 #define STMPE811_REG_GPIO_SET_PIN	0x10
151 #define STMPE811_REG_GPIO_CLR_PIN	0x11
152 #define STMPE811_REG_GPIO_MP_STA	0x12
153 #define STMPE811_REG_GPIO_DIR		0x13
154 #define STMPE811_REG_GPIO_ED		0x14
155 #define STMPE811_REG_GPIO_RE		0x15
156 #define STMPE811_REG_GPIO_FE		0x16
157 #define STMPE811_REG_GPIO_AF		0x17
158 
159 #define STMPE811_SYS_CTRL_RESET		(1 << 1)
160 
161 #define STMPE811_SYS_CTRL2_ADC_OFF	(1 << 0)
162 #define STMPE811_SYS_CTRL2_TSC_OFF	(1 << 1)
163 #define STMPE811_SYS_CTRL2_GPIO_OFF	(1 << 2)
164 #define STMPE811_SYS_CTRL2_TS_OFF	(1 << 3)
165 
166 /*
167  * STMPE1600
168  */
169 #define STMPE1600_ID			0x0016
170 #define STMPE1600_NR_INTERNAL_IRQS	16
171 
172 #define STMPE1600_REG_CHIP_ID		0x00
173 #define STMPE1600_REG_SYS_CTRL		0x03
174 #define STMPE1600_REG_IEGPIOR_LSB	0x08
175 #define STMPE1600_REG_IEGPIOR_MSB	0x09
176 #define STMPE1600_REG_ISGPIOR_LSB	0x0A
177 #define STMPE1600_REG_ISGPIOR_MSB	0x0B
178 #define STMPE1600_REG_GPMR_LSB		0x10
179 #define STMPE1600_REG_GPMR_MSB		0x11
180 #define STMPE1600_REG_GPSR_LSB		0x12
181 #define STMPE1600_REG_GPSR_MSB		0x13
182 #define STMPE1600_REG_GPDR_LSB		0x14
183 #define STMPE1600_REG_GPDR_MSB		0x15
184 #define STMPE1600_REG_GPPIR_LSB		0x16
185 #define STMPE1600_REG_GPPIR_MSB		0x17
186 
187 /*
188  * STMPE1601
189  */
190 
191 #define STMPE1601_IRQ_GPIOC		8
192 #define STMPE1601_IRQ_PWM3		7
193 #define STMPE1601_IRQ_PWM2		6
194 #define STMPE1601_IRQ_PWM1		5
195 #define STMPE1601_IRQ_PWM0		4
196 #define STMPE1601_IRQ_KEYPAD_OVER	2
197 #define STMPE1601_IRQ_KEYPAD		1
198 #define STMPE1601_IRQ_WAKEUP		0
199 #define STMPE1601_NR_INTERNAL_IRQS	9
200 
201 #define STMPE1601_REG_SYS_CTRL			0x02
202 #define STMPE1601_REG_SYS_CTRL2			0x03
203 #define STMPE1601_REG_ICR_MSB			0x10
204 #define STMPE1601_REG_ICR_LSB			0x11
205 #define STMPE1601_REG_IER_MSB			0x12
206 #define STMPE1601_REG_IER_LSB			0x13
207 #define STMPE1601_REG_ISR_MSB			0x14
208 #define STMPE1601_REG_ISR_LSB			0x15
209 #define STMPE1601_REG_INT_EN_GPIO_MASK_MSB	0x16
210 #define STMPE1601_REG_INT_EN_GPIO_MASK_LSB	0x17
211 #define STMPE1601_REG_INT_STA_GPIO_MSB		0x18
212 #define STMPE1601_REG_INT_STA_GPIO_LSB		0x19
213 #define STMPE1601_REG_CHIP_ID			0x80
214 #define STMPE1601_REG_GPIO_SET_MSB		0x82
215 #define STMPE1601_REG_GPIO_SET_LSB		0x83
216 #define STMPE1601_REG_GPIO_CLR_MSB		0x84
217 #define STMPE1601_REG_GPIO_CLR_LSB		0x85
218 #define STMPE1601_REG_GPIO_MP_MSB		0x86
219 #define STMPE1601_REG_GPIO_MP_LSB		0x87
220 #define STMPE1601_REG_GPIO_SET_DIR_MSB		0x88
221 #define STMPE1601_REG_GPIO_SET_DIR_LSB		0x89
222 #define STMPE1601_REG_GPIO_ED_MSB		0x8A
223 #define STMPE1601_REG_GPIO_ED_LSB		0x8B
224 #define STMPE1601_REG_GPIO_RE_MSB		0x8C
225 #define STMPE1601_REG_GPIO_RE_LSB		0x8D
226 #define STMPE1601_REG_GPIO_FE_MSB		0x8E
227 #define STMPE1601_REG_GPIO_FE_LSB		0x8F
228 #define STMPE1601_REG_GPIO_PU_MSB		0x90
229 #define STMPE1601_REG_GPIO_PU_LSB		0x91
230 #define STMPE1601_REG_GPIO_AF_U_MSB		0x92
231 
232 #define STMPE1601_SYS_CTRL_ENABLE_GPIO		(1 << 3)
233 #define STMPE1601_SYS_CTRL_ENABLE_KPC		(1 << 1)
234 #define STMPE1601_SYS_CTRL_ENABLE_SPWM		(1 << 0)
235 
236 /* The 1601/2403 share the same masks */
237 #define STMPE1601_AUTOSLEEP_TIMEOUT_MASK	(0x7)
238 #define STPME1601_AUTOSLEEP_ENABLE		(1 << 3)
239 
240 /*
241  * STMPE1801
242  */
243 #define STMPE1801_ID			0xc110
244 #define STMPE1801_NR_INTERNAL_IRQS	5
245 #define STMPE1801_IRQ_KEYPAD_COMBI	4
246 #define STMPE1801_IRQ_GPIOC		3
247 #define STMPE1801_IRQ_KEYPAD_OVER	2
248 #define STMPE1801_IRQ_KEYPAD		1
249 #define STMPE1801_IRQ_WAKEUP		0
250 
251 #define STMPE1801_REG_CHIP_ID			0x00
252 #define STMPE1801_REG_SYS_CTRL			0x02
253 #define STMPE1801_REG_INT_CTRL_LOW		0x04
254 #define STMPE1801_REG_INT_EN_MASK_LOW		0x06
255 #define STMPE1801_REG_INT_STA_LOW		0x08
256 #define STMPE1801_REG_INT_EN_GPIO_MASK_LOW	0x0A
257 #define STMPE1801_REG_INT_EN_GPIO_MASK_MID	0x0B
258 #define STMPE1801_REG_INT_EN_GPIO_MASK_HIGH	0x0C
259 #define STMPE1801_REG_INT_STA_GPIO_LOW		0x0D
260 #define STMPE1801_REG_INT_STA_GPIO_MID		0x0E
261 #define STMPE1801_REG_INT_STA_GPIO_HIGH		0x0F
262 #define STMPE1801_REG_GPIO_SET_LOW		0x10
263 #define STMPE1801_REG_GPIO_SET_MID		0x11
264 #define STMPE1801_REG_GPIO_SET_HIGH		0x12
265 #define STMPE1801_REG_GPIO_CLR_LOW		0x13
266 #define STMPE1801_REG_GPIO_CLR_MID		0x14
267 #define STMPE1801_REG_GPIO_CLR_HIGH		0x15
268 #define STMPE1801_REG_GPIO_MP_LOW		0x16
269 #define STMPE1801_REG_GPIO_MP_MID		0x17
270 #define STMPE1801_REG_GPIO_MP_HIGH		0x18
271 #define STMPE1801_REG_GPIO_SET_DIR_LOW		0x19
272 #define STMPE1801_REG_GPIO_SET_DIR_MID		0x1A
273 #define STMPE1801_REG_GPIO_SET_DIR_HIGH		0x1B
274 #define STMPE1801_REG_GPIO_RE_LOW		0x1C
275 #define STMPE1801_REG_GPIO_RE_MID		0x1D
276 #define STMPE1801_REG_GPIO_RE_HIGH		0x1E
277 #define STMPE1801_REG_GPIO_FE_LOW		0x1F
278 #define STMPE1801_REG_GPIO_FE_MID		0x20
279 #define STMPE1801_REG_GPIO_FE_HIGH		0x21
280 #define STMPE1801_REG_GPIO_PULL_UP_LOW		0x22
281 #define STMPE1801_REG_GPIO_PULL_UP_MID		0x23
282 #define STMPE1801_REG_GPIO_PULL_UP_HIGH		0x24
283 
284 #define STMPE1801_MSK_INT_EN_KPC		(1 << 1)
285 #define STMPE1801_MSK_INT_EN_GPIO		(1 << 3)
286 
287 /*
288  * STMPE24xx
289  */
290 
291 #define STMPE24XX_IRQ_GPIOC		8
292 #define STMPE24XX_IRQ_PWM2		7
293 #define STMPE24XX_IRQ_PWM1		6
294 #define STMPE24XX_IRQ_PWM0		5
295 #define STMPE24XX_IRQ_ROT_OVER		4
296 #define STMPE24XX_IRQ_ROT		3
297 #define STMPE24XX_IRQ_KEYPAD_OVER	2
298 #define STMPE24XX_IRQ_KEYPAD		1
299 #define STMPE24XX_IRQ_WAKEUP		0
300 #define STMPE24XX_NR_INTERNAL_IRQS	9
301 
302 #define STMPE24XX_REG_SYS_CTRL		0x02
303 #define STMPE24XX_REG_SYS_CTRL2		0x03
304 #define STMPE24XX_REG_ICR_MSB		0x10
305 #define STMPE24XX_REG_ICR_LSB		0x11
306 #define STMPE24XX_REG_IER_MSB		0x12
307 #define STMPE24XX_REG_IER_LSB		0x13
308 #define STMPE24XX_REG_ISR_MSB		0x14
309 #define STMPE24XX_REG_ISR_LSB		0x15
310 #define STMPE24XX_REG_IEGPIOR_MSB	0x16
311 #define STMPE24XX_REG_IEGPIOR_CSB	0x17
312 #define STMPE24XX_REG_IEGPIOR_LSB	0x18
313 #define STMPE24XX_REG_ISGPIOR_MSB	0x19
314 #define STMPE24XX_REG_ISGPIOR_CSB	0x1A
315 #define STMPE24XX_REG_ISGPIOR_LSB	0x1B
316 #define STMPE24XX_REG_CHIP_ID		0x80
317 #define STMPE24XX_REG_GPSR_MSB		0x83
318 #define STMPE24XX_REG_GPSR_CSB		0x84
319 #define STMPE24XX_REG_GPSR_LSB		0x85
320 #define STMPE24XX_REG_GPCR_MSB		0x86
321 #define STMPE24XX_REG_GPCR_CSB		0x87
322 #define STMPE24XX_REG_GPCR_LSB		0x88
323 #define STMPE24XX_REG_GPDR_MSB		0x89
324 #define STMPE24XX_REG_GPDR_CSB		0x8A
325 #define STMPE24XX_REG_GPDR_LSB		0x8B
326 #define STMPE24XX_REG_GPEDR_MSB		0x8C
327 #define STMPE24XX_REG_GPEDR_CSB		0x8D
328 #define STMPE24XX_REG_GPEDR_LSB		0x8E
329 #define STMPE24XX_REG_GPRER_MSB		0x8F
330 #define STMPE24XX_REG_GPRER_CSB		0x90
331 #define STMPE24XX_REG_GPRER_LSB		0x91
332 #define STMPE24XX_REG_GPFER_MSB		0x92
333 #define STMPE24XX_REG_GPFER_CSB		0x93
334 #define STMPE24XX_REG_GPFER_LSB		0x94
335 #define STMPE24XX_REG_GPPUR_MSB		0x95
336 #define STMPE24XX_REG_GPPUR_CSB		0x96
337 #define STMPE24XX_REG_GPPUR_LSB		0x97
338 #define STMPE24XX_REG_GPPDR_MSB		0x98
339 #define STMPE24XX_REG_GPPDR_CSB		0x99
340 #define STMPE24XX_REG_GPPDR_LSB		0x9A
341 #define STMPE24XX_REG_GPAFR_U_MSB	0x9B
342 #define STMPE24XX_REG_GPMR_MSB		0xA2
343 #define STMPE24XX_REG_GPMR_CSB		0xA3
344 #define STMPE24XX_REG_GPMR_LSB		0xA4
345 #define STMPE24XX_SYS_CTRL_ENABLE_GPIO		(1 << 3)
346 #define STMPE24XX_SYSCON_ENABLE_PWM		(1 << 2)
347 #define STMPE24XX_SYS_CTRL_ENABLE_KPC		(1 << 1)
348 #define STMPE24XX_SYSCON_ENABLE_ROT		(1 << 0)
349 
350 #endif
351