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Diffstat (limited to 'drivers/input/touchscreen/rmi4/rmi_f01.c')
-rw-r--r--drivers/input/touchscreen/rmi4/rmi_f01.c775
1 files changed, 775 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/rmi4/rmi_f01.c b/drivers/input/touchscreen/rmi4/rmi_f01.c
new file mode 100644
index 00000000000..ef9adb0586b
--- /dev/null
+++ b/drivers/input/touchscreen/rmi4/rmi_f01.c
@@ -0,0 +1,775 @@
1/*
2 * Copyright (c) 2011 Synaptics Incorporated
3 * Copyright (c) 2011 Unixphere
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20#define DEBUG
21
22#include <linux/kernel.h>
23#include <linux/rmi.h>
24#include <linux/slab.h>
25#include "rmi_driver.h"
26
27/* control register bits */
28#define RMI_SLEEP_MODE_NORMAL (0x00)
29#define RMI_SLEEP_MODE_SENSOR_SLEEP (0x01)
30#define RMI_SLEEP_MODE_RESERVED0 (0x02)
31#define RMI_SLEEP_MODE_RESERVED1 (0x03)
32
33#define RMI_IS_VALID_SLEEPMODE(mode) \
34 (mode >= RMI_SLEEP_MODE_NORMAL && mode <= RMI_SLEEP_MODE_RESERVED1)
35
36union f01_device_commands {
37 struct {
38 u8 reset:1;
39 u8 reserved:1;
40 };
41 u8 reg;
42};
43
44union f01_device_control {
45 struct {
46 u8 sleep_mode:2;
47 u8 nosleep:1;
48 u8 reserved:2;
49 u8 charger_input:1;
50 u8 report_rate:1;
51 u8 configured:1;
52 };
53 u8 reg;
54};
55
56union f01_device_status {
57 struct {
58 u8 status_code:4;
59 u8 reserved:2;
60 u8 flash_prog:1;
61 u8 unconfigured:1;
62 };
63 u8 reg;
64};
65
66union f01_basic_queries {
67 struct {
68 u8 manufacturer_id:8;
69
70 u8 custom_map:1;
71 u8 non_compliant:1;
72 u8 q1_bit_2:1;
73 u8 has_sensor_id:1;
74 u8 has_charger_input:1;
75 u8 has_adjustable_doze:1;
76 u8 has_adjustable_doze_holdoff:1;
77 u8 q1_bit_7:1;
78
79 u8 productinfo_1:7;
80 u8 q2_bit_7:1;
81 u8 productinfo_2:7;
82 u8 q3_bit_7:1;
83
84 u8 year:5;
85 u8 month:4;
86 u8 day:5;
87 u8 cp1:1;
88 u8 cp2:1;
89 u8 wafer_id1_lsb:8;
90 u8 wafer_id1_msb:8;
91 u8 wafer_id2_lsb:8;
92 u8 wafer_id2_msb:8;
93 u8 wafer_id3_lsb:8;
94 };
95 u8 regs[11];
96};
97
98struct f01_data {
99 union f01_device_control device_control;
100 union f01_basic_queries basic_queries;
101 union f01_device_status device_status;
102 u8 product_id[RMI_PRODUCT_ID_LENGTH+1];
103
104#ifdef CONFIG_PM
105 bool suspended;
106 bool old_nosleep;
107#endif
108};
109
110
111static ssize_t rmi_fn_01_productinfo_show(struct device *dev,
112 struct device_attribute *attr,
113 char *buf);
114
115static ssize_t rmi_fn_01_productid_show(struct device *dev,
116 struct device_attribute *attr,
117 char *buf);
118
119static ssize_t rmi_fn_01_manufacturer_show(struct device *dev,
120 struct device_attribute *attr,
121 char *buf);
122
123static ssize_t rmi_fn_01_datecode_show(struct device *dev,
124 struct device_attribute *attr,
125 char *buf);
126
127static ssize_t rmi_fn_01_reportrate_show(struct device *dev,
128 struct device_attribute *attr,
129 char *buf);
130
131static ssize_t rmi_fn_01_reportrate_store(struct device *dev,
132 struct device_attribute *attr,
133 const char *buf, size_t count);
134
135static ssize_t rmi_fn_01_reset_store(struct device *dev,
136 struct device_attribute *attr,
137 const char *buf, size_t count);
138
139static ssize_t rmi_fn_01_sleepmode_show(struct device *dev,
140 struct device_attribute *attr,
141 char *buf);
142
143static ssize_t rmi_fn_01_sleepmode_store(struct device *dev,
144 struct device_attribute *attr,
145 const char *buf, size_t count);
146
147static ssize_t rmi_fn_01_nosleep_show(struct device *dev,
148 struct device_attribute *attr,
149 char *buf);
150
151static ssize_t rmi_fn_01_nosleep_store(struct device *dev,
152 struct device_attribute *attr,
153 const char *buf, size_t count);
154
155static ssize_t rmi_fn_01_chargerinput_show(struct device *dev,
156 struct device_attribute *attr,
157 char *buf);
158
159static ssize_t rmi_fn_01_chargerinput_store(struct device *dev,
160 struct device_attribute *attr,
161 const char *buf, size_t count);
162
163static ssize_t rmi_fn_01_configured_show(struct device *dev,
164 struct device_attribute *attr,
165 char *buf);
166
167static ssize_t rmi_fn_01_unconfigured_show(struct device *dev,
168 struct device_attribute *attr,
169 char *buf);
170
171static ssize_t rmi_fn_01_flashprog_show(struct device *dev,
172 struct device_attribute *attr,
173 char *buf);
174
175static ssize_t rmi_fn_01_statuscode_show(struct device *dev,
176 struct device_attribute *attr,
177 char *buf);
178
179static struct device_attribute fn_01_attrs[] = {
180 __ATTR(productinfo, RMI_RO_ATTR,
181 rmi_fn_01_productinfo_show, rmi_store_error),
182 __ATTR(productid, RMI_RO_ATTR,
183 rmi_fn_01_productid_show, rmi_store_error),
184 __ATTR(manufacturer, RMI_RO_ATTR,
185 rmi_fn_01_manufacturer_show, rmi_store_error),
186 __ATTR(datecode, RMI_RO_ATTR,
187 rmi_fn_01_datecode_show, rmi_store_error),
188
189 /* control register access */
190 __ATTR(sleepmode, RMI_RW_ATTR,
191 rmi_fn_01_sleepmode_show, rmi_fn_01_sleepmode_store),
192 __ATTR(nosleep, RMI_RW_ATTR,
193 rmi_fn_01_nosleep_show, rmi_fn_01_nosleep_store),
194 __ATTR(chargerinput, RMI_RW_ATTR,
195 rmi_fn_01_chargerinput_show, rmi_fn_01_chargerinput_store),
196 __ATTR(reportrate, RMI_RW_ATTR,
197 rmi_fn_01_reportrate_show, rmi_fn_01_reportrate_store),
198 /* We make report rate RO, since the driver uses that to look for
199 * resets. We don't want someone faking us out by changing that
200 * bit.
201 */
202 __ATTR(configured, RMI_RO_ATTR,
203 rmi_fn_01_configured_show, rmi_store_error),
204
205 /* Command register access. */
206 __ATTR(reset, RMI_WO_ATTR,
207