diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/plat-omap/include/plat/gpio.h | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/arm/plat-omap/include/plat/gpio.h')
-rw-r--r-- | arch/arm/plat-omap/include/plat/gpio.h | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h new file mode 100644 index 00000000000..91e8de3db08 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/gpio.h | |||
@@ -0,0 +1,262 @@ | |||
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 | #define OMAP_GPIO_IRQ(nr) (OMAP_GPIO_IS_MPUIO(nr) ? \ | ||
162 | IH_MPUIO_BASE + ((nr) & 0x0f) : \ | ||
163 | IH_GPIO_BASE + (nr)) | ||
164 | |||
165 | #define METHOD_MPUIO 0 | ||
166 | #define METHOD_GPIO_1510 1 | ||
167 | #define METHOD_GPIO_1610 2 | ||
168 | #define METHOD_GPIO_7XX 3 | ||
169 | #define METHOD_GPIO_24XX 5 | ||
170 | #define METHOD_GPIO_44XX 6 | ||
171 | |||
172 | struct omap_gpio_dev_attr { | ||
173 | int bank_width; /* GPIO bank width */ | ||
174 | bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ | ||
175 | }; | ||
176 | |||
177 | struct omap_gpio_reg_offs { | ||
178 | u16 revision; | ||
179 | u16 direction; | ||
180 | u16 datain; | ||
181 | u16 dataout; | ||
182 | u16 set_dataout; | ||
183 | u16 clr_dataout; | ||
184 | u16 irqstatus; | ||
185 | u16 irqstatus2; | ||
186 | u16 irqenable; | ||
187 | u16 set_irqenable; | ||
188 | u16 clr_irqenable; | ||
189 | u16 debounce; | ||
190 | u16 debounce_en; | ||
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 | |||
202 | struct omap_gpio_reg_offs *regs; | ||
203 | }; | ||
204 | |||
205 | /* TODO: Analyze removing gpio_bank_count usage from driver code */ | ||
206 | extern int gpio_bank_count; | ||
207 | |||
208 | extern void omap2_gpio_prepare_for_idle(int off_mode); | ||
209 | extern void omap2_gpio_resume_after_idle(void); | ||
210 | extern void omap_set_gpio_debounce(int gpio, int enable); | ||
211 | extern void omap_set_gpio_debounce_time(int gpio, int enable); | ||
212 | extern void omap_gpio_save_context(void); | ||
213 | extern void omap_gpio_restore_context(void); | ||
214 | /*-------------------------------------------------------------------------*/ | ||
215 | |||
216 | /* Wrappers for "new style" GPIO calls, using the new infrastructure | ||
217 | * which lets us plug in FPGA, I2C, and other implementations. | ||
218 | * * | ||
219 | * The original OMAP-specific calls should eventually be removed. | ||
220 | */ | ||
221 | |||
222 | #include <linux/errno.h> | ||
223 | #include <asm-generic/gpio.h> | ||
224 | |||
225 | static inline int gpio_get_value(unsigned gpio) | ||
226 | { | ||
227 | return __gpio_get_value(gpio); | ||
228 | } | ||
229 | |||
230 | static inline void gpio_set_value(unsigned gpio, int value) | ||
231 | { | ||
232 | __gpio_set_value(gpio, value); | ||
233 | } | ||
234 | |||
235 | static inline int gpio_cansleep(unsigned gpio) | ||
236 | { | ||
237 | return __gpio_cansleep(gpio); | ||
238 | } | ||
239 | |||
240 | static inline int gpio_to_irq(unsigned gpio) | ||
241 | { | ||
242 | return __gpio_to_irq(gpio); | ||
243 | } | ||
244 | |||
245 | static inline int irq_to_gpio(unsigned irq) | ||
246 | { | ||
247 | int tmp; | ||
248 | |||
249 | /* omap1 SOC mpuio */ | ||
250 | if (cpu_class_is_omap1() && (irq < (IH_MPUIO_BASE + 16))) | ||
251 | return (irq - IH_MPUIO_BASE) + OMAP_MAX_GPIO_LINES; | ||
252 | |||
253 | /* SOC gpio */ | ||
254 | tmp = irq - IH_GPIO_BASE; | ||
255 | if (tmp < OMAP_MAX_GPIO_LINES) | ||
256 | return tmp; | ||
257 | |||
258 | /* we don't supply reverse mappings for non-SOC gpios */ | ||
259 | return -EIO; | ||
260 | } | ||
261 | |||
262 | #endif | ||