1 /*
2  * arch/arm/plat-omap/include/mach/gpio.h
3  *
4  * OMAP GPIO handling defines and functions
5  *
6  * Copyright (C) 2003-2005 Nokia Corporation
7  *
8  * Written by Juha Yrjölä <juha.yrjola@nokia.com>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23  *
24  */
25 
26 #ifndef __ASM_ARCH_OMAP_GPIO_H
27 #define __ASM_ARCH_OMAP_GPIO_H
28 
29 #include <linux/io.h>
30 #include <linux/platform_device.h>
31 #include <mach/irqs.h>
32 
33 #define OMAP1_MPUIO_BASE			0xfffb5000
34 
35 /*
36  * These are the omap15xx/16xx offsets. The omap7xx offset are
37  * OMAP_MPUIO_ / 2 offsets below.
38  */
39 #define OMAP_MPUIO_INPUT_LATCH		0x00
40 #define OMAP_MPUIO_OUTPUT		0x04
41 #define OMAP_MPUIO_IO_CNTL		0x08
42 #define OMAP_MPUIO_KBR_LATCH		0x10
43 #define OMAP_MPUIO_KBC			0x14
44 #define OMAP_MPUIO_GPIO_EVENT_MODE	0x18
45 #define OMAP_MPUIO_GPIO_INT_EDGE	0x1c
46 #define OMAP_MPUIO_KBD_INT		0x20
47 #define OMAP_MPUIO_GPIO_INT		0x24
48 #define OMAP_MPUIO_KBD_MASKIT		0x28
49 #define OMAP_MPUIO_GPIO_MASKIT		0x2c
50 #define OMAP_MPUIO_GPIO_DEBOUNCING	0x30
51 #define OMAP_MPUIO_LATCH		0x34
52 
53 #define OMAP34XX_NR_GPIOS		6
54 
55 /*
56  * OMAP1510 GPIO registers
57  */
58 #define OMAP1510_GPIO_DATA_INPUT	0x00
59 #define OMAP1510_GPIO_DATA_OUTPUT	0x04
60 #define OMAP1510_GPIO_DIR_CONTROL	0x08
61 #define OMAP1510_GPIO_INT_CONTROL	0x0c
62 #define OMAP1510_GPIO_INT_MASK		0x10
63 #define OMAP1510_GPIO_INT_STATUS	0x14
64 #define OMAP1510_GPIO_PIN_CONTROL	0x18
65 
66 #define OMAP1510_IH_GPIO_BASE		64
67 
68 /*
69  * OMAP1610 specific GPIO registers
70  */
71 #define OMAP1610_GPIO_REVISION		0x0000
72 #define OMAP1610_GPIO_SYSCONFIG		0x0010
73 #define OMAP1610_GPIO_SYSSTATUS		0x0014
74 #define OMAP1610_GPIO_IRQSTATUS1	0x0018
75 #define OMAP1610_GPIO_IRQENABLE1	0x001c
76 #define OMAP1610_GPIO_WAKEUPENABLE	0x0028
77 #define OMAP1610_GPIO_DATAIN		0x002c
78 #define OMAP1610_GPIO_DATAOUT		0x0030
79 #define OMAP1610_GPIO_DIRECTION		0x0034
80 #define OMAP1610_GPIO_EDGE_CTRL1	0x0038
81 #define OMAP1610_GPIO_EDGE_CTRL2	0x003c
82 #define OMAP1610_GPIO_CLEAR_IRQENABLE1	0x009c
83 #define OMAP1610_GPIO_CLEAR_WAKEUPENA	0x00a8
84 #define OMAP1610_GPIO_CLEAR_DATAOUT	0x00b0
85 #define OMAP1610_GPIO_SET_IRQENABLE1	0x00dc
86 #define OMAP1610_GPIO_SET_WAKEUPENA	0x00e8
87 #define OMAP1610_GPIO_SET_DATAOUT	0x00f0
88 
89 /*
90  * OMAP7XX specific GPIO registers
91  */
92 #define OMAP7XX_GPIO_DATA_INPUT		0x00
93 #define OMAP7XX_GPIO_DATA_OUTPUT	0x04
94 #define OMAP7XX_GPIO_DIR_CONTROL	0x08
95 #define OMAP7XX_GPIO_INT_CONTROL	0x0c
96 #define OMAP7XX_GPIO_INT_MASK		0x10
97 #define OMAP7XX_GPIO_INT_STATUS		0x14
98 
99 /*
100  * omap2+ specific GPIO registers
101  */
102 #define OMAP24XX_GPIO_REVISION		0x0000
103 #define OMAP24XX_GPIO_IRQSTATUS1	0x0018
104 #define OMAP24XX_GPIO_IRQSTATUS2	0x0028
105 #define OMAP24XX_GPIO_IRQENABLE2	0x002c
106 #define OMAP24XX_GPIO_IRQENABLE1	0x001c
107 #define OMAP24XX_GPIO_WAKE_EN		0x0020
108 #define OMAP24XX_GPIO_CTRL		0x0030
109 #define OMAP24XX_GPIO_OE		0x0034
110 #define OMAP24XX_GPIO_DATAIN		0x0038
111 #define OMAP24XX_GPIO_DATAOUT		0x003c
112 #define OMAP24XX_GPIO_LEVELDETECT0	0x0040
113 #define OMAP24XX_GPIO_LEVELDETECT1	0x0044
114 #define OMAP24XX_GPIO_RISINGDETECT	0x0048
115 #define OMAP24XX_GPIO_FALLINGDETECT	0x004c
116 #define OMAP24XX_GPIO_DEBOUNCE_EN	0x0050
117 #define OMAP24XX_GPIO_DEBOUNCE_VAL	0x0054
118 #define OMAP24XX_GPIO_CLEARIRQENABLE1	0x0060
119 #define OMAP24XX_GPIO_SETIRQENABLE1	0x0064
120 #define OMAP24XX_GPIO_CLEARWKUENA	0x0080
121 #define OMAP24XX_GPIO_SETWKUENA		0x0084
122 #define OMAP24XX_GPIO_CLEARDATAOUT	0x0090
123 #define OMAP24XX_GPIO_SETDATAOUT	0x0094
124 
125 #define OMAP4_GPIO_REVISION		0x0000
126 #define OMAP4_GPIO_EOI			0x0020
127 #define OMAP4_GPIO_IRQSTATUSRAW0	0x0024
128 #define OMAP4_GPIO_IRQSTATUSRAW1	0x0028
129 #define OMAP4_GPIO_IRQSTATUS0		0x002c
130 #define OMAP4_GPIO_IRQSTATUS1		0x0030
131 #define OMAP4_GPIO_IRQSTATUSSET0	0x0034
132 #define OMAP4_GPIO_IRQSTATUSSET1	0x0038
133 #define OMAP4_GPIO_IRQSTATUSCLR0	0x003c
134 #define OMAP4_GPIO_IRQSTATUSCLR1	0x0040
135 #define OMAP4_GPIO_IRQWAKEN0		0x0044
136 #define OMAP4_GPIO_IRQWAKEN1		0x0048
137 #define OMAP4_GPIO_IRQENABLE1		0x011c
138 #define OMAP4_GPIO_WAKE_EN		0x0120
139 #define OMAP4_GPIO_IRQSTATUS2		0x0128
140 #define OMAP4_GPIO_IRQENABLE2		0x012c
141 #define OMAP4_GPIO_CTRL			0x0130
142 #define OMAP4_GPIO_OE			0x0134
143 #define OMAP4_GPIO_DATAIN		0x0138
144 #define OMAP4_GPIO_DATAOUT		0x013c
145 #define OMAP4_GPIO_LEVELDETECT0		0x0140
146 #define OMAP4_GPIO_LEVELDETECT1		0x0144
147 #define OMAP4_GPIO_RISINGDETECT		0x0148
148 #define OMAP4_GPIO_FALLINGDETECT	0x014c
149 #define OMAP4_GPIO_DEBOUNCENABLE	0x0150
150 #define OMAP4_GPIO_DEBOUNCINGTIME	0x0154
151 #define OMAP4_GPIO_CLEARIRQENABLE1	0x0160
152 #define OMAP4_GPIO_SETIRQENABLE1	0x0164
153 #define OMAP4_GPIO_CLEARWKUENA		0x0180
154 #define OMAP4_GPIO_SETWKUENA		0x0184
155 #define OMAP4_GPIO_CLEARDATAOUT		0x0190
156 #define OMAP4_GPIO_SETDATAOUT		0x0194
157 
158 #define OMAP_MPUIO(nr)		(OMAP_MAX_GPIO_LINES + (nr))
159 #define OMAP_GPIO_IS_MPUIO(nr)	((nr) >= OMAP_MAX_GPIO_LINES)
160 
161 struct omap_gpio_dev_attr {
162 	int bank_width;		/* GPIO bank width */
163 	bool dbck_flag;		/* dbck required or not - True for OMAP3&4 */
164 };
165 
166 struct omap_gpio_reg_offs {
167 	u16 revision;
168 	u16 direction;
169 	u16 datain;
170 	u16 dataout;
171 	u16 set_dataout;
172 	u16 clr_dataout;
173 	u16 irqstatus;
174 	u16 irqstatus2;
175 	u16 irqenable;
176 	u16 irqenable2;
177 	u16 set_irqenable;
178 	u16 clr_irqenable;
179 	u16 debounce;
180 	u16 debounce_en;
181 	u16 ctrl;
182 	u16 wkup_en;
183 	u16 leveldetect0;
184 	u16 leveldetect1;
185 	u16 risingdetect;
186 	u16 fallingdetect;
187 	u16 irqctrl;
188 	u16 edgectrl1;
189 	u16 edgectrl2;
190 	u16 pinctrl;
191 
192 	bool irqenable_inv;
193 };
194 
195 struct omap_gpio_platform_data {
196 	u16 virtual_irq_start;
197 	int bank_type;
198 	int bank_width;		/* GPIO bank width */
199 	int bank_stride;	/* Only needed for omap1 MPUIO */
200 	bool dbck_flag;		/* dbck required or not - True for OMAP3&4 */
201 	bool loses_context;	/* whether the bank would ever lose context */
202 	bool is_mpuio;		/* whether the bank is of type MPUIO */
203 	u32 non_wakeup_gpios;
204 
205 	struct omap_gpio_reg_offs *regs;
206 
207 	/* Return context loss count due to PM states changing */
208 	int (*get_context_loss_count)(struct device *dev);
209 };
210 
211 extern void omap2_gpio_prepare_for_idle(int off_mode);
212 extern void omap2_gpio_resume_after_idle(void);
213 extern void omap_set_gpio_debounce(int gpio, int enable);
214 extern void omap_set_gpio_debounce_time(int gpio, int enable);
215 /*-------------------------------------------------------------------------*/
216 
217 /*
218  * Wrappers for "new style" GPIO calls, using the new infrastructure
219  * which lets us plug in FPGA, I2C, and other implementations.
220  *
221  * The original OMAP-specific calls should eventually be removed.
222  */
223 
224 #include <linux/errno.h>
225 #include <asm-generic/gpio.h>
226 
227 #endif
228