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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2016-07-26 15:07:15 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2016-07-26 15:07:15 -0400
commit0808882863774ab69066d83f49f511606be024e0 (patch)
treedc5eaab5db6c18e06025356235b0c9ba02bd7a1d /drivers/input/touchscreen
parente9003c9cfaa17d26991688268b04244adb67ee2b (diff)
parent0097ff3d5dad1f76c5e1099d849d52509500708c (diff)
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.8 merge window.
Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/Kconfig28
-rw-r--r--drivers/input/touchscreen/Makefile2
-rw-r--r--drivers/input/touchscreen/ad7879.c2
-rw-r--r--drivers/input/touchscreen/chipone_icn8318.c61
-rw-r--r--drivers/input/touchscreen/cyttsp_core.c2
-rw-r--r--drivers/input/touchscreen/edt-ft5x06.c7
-rw-r--r--drivers/input/touchscreen/migor_ts.c6
-rw-r--r--drivers/input/touchscreen/of_touchscreen.c81
-rw-r--r--drivers/input/touchscreen/pixcir_i2c_ts.c53
-rw-r--r--drivers/input/touchscreen/raydium_i2c_ts.c1238
-rw-r--r--drivers/input/touchscreen/surface3_spi.c427
-rw-r--r--drivers/input/touchscreen/ti_am335x_tsc.c2
-rw-r--r--drivers/input/touchscreen/tsc200x-core.c2
-rw-r--r--drivers/input/touchscreen/wacom_w8001.c10
14 files changed, 1828 insertions, 93 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 8ecdc38fd489..ee02dc7422bd 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -632,7 +632,7 @@ config TOUCHSCREEN_EDT_FT5X06
632 632
633config TOUCHSCREEN_MIGOR 633config TOUCHSCREEN_MIGOR
634 tristate "Renesas MIGO-R touchscreen" 634 tristate "Renesas MIGO-R touchscreen"
635 depends on SH_MIGOR && I2C 635 depends on (SH_MIGOR || COMPILE_TEST) && I2C
636 help 636 help
637 Say Y here to enable MIGO-R touchscreen support. 637 Say Y here to enable MIGO-R touchscreen support.
638 638
@@ -1046,6 +1046,19 @@ config TOUCHSCREEN_PCAP
1046 To compile this driver as a module, choose M here: the 1046 To compile this driver as a module, choose M here: the
1047 module will be called pcap_ts. 1047 module will be called pcap_ts.
1048 1048
1049config TOUCHSCREEN_RM_TS
1050 tristate "Raydium I2C Touchscreen"
1051 depends on I2C
1052 depends on GPIOLIB || COMPILE_TEST
1053 help
1054 Say Y here if you have Raydium series I2C touchscreen,
1055 such as RM32380, connected to your system.
1056
1057 If unsure, say N.
1058
1059 To compile this driver as a module, choose M here: the
1060 module will be called raydium_i2c_ts.
1061
1049config TOUCHSCREEN_ST1232 1062config TOUCHSCREEN_ST1232
1050 tristate "Sitronix ST1232 touchscreen controllers" 1063 tristate "Sitronix ST1232 touchscreen controllers"
1051 depends on I2C 1064 depends on I2C
@@ -1094,6 +1107,19 @@ config TOUCHSCREEN_SUR40
1094 To compile this driver as a module, choose M here: the 1107 To compile this driver as a module, choose M here: the
1095 module will be called sur40. 1108 module will be called sur40.
1096 1109
1110config TOUCHSCREEN_SURFACE3_SPI
1111 tristate "Ntrig/Microsoft Surface 3 SPI touchscreen"
1112 depends on SPI
1113 depends on GPIOLIB || COMPILE_TEST
1114 help
1115 Say Y here if you have the Ntrig/Microsoft SPI touchscreen
1116 controller chip as found on the Surface 3 in your system.
1117
1118 If unsure, say N.
1119
1120 To compile this driver as a module, choose M here: the
1121 module will be called surface3_spi.
1122
1097config TOUCHSCREEN_SX8654 1123config TOUCHSCREEN_SX8654
1098 tristate "Semtech SX8654 touchscreen" 1124 tristate "Semtech SX8654 touchscreen"
1099 depends on I2C 1125 depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index f42975e719e0..3315882905f7 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -62,11 +62,13 @@ obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
62obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o 62obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o
63obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o 63obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
64obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o 64obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o
65obj-$(CONFIG_TOUCHSCREEN_RM_TS) += raydium_i2c_ts.o
65obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o 66obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
66obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o 67obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
67obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o 68obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
68obj-$(CONFIG_TOUCHSCREEN_SUN4I) += sun4i-ts.o 69obj-$(CONFIG_TOUCHSCREEN_SUN4I) += sun4i-ts.o
69obj-$(CONFIG_TOUCHSCREEN_SUR40) += sur40.o 70obj-$(CONFIG_TOUCHSCREEN_SUR40) += sur40.o
71obj-$(CONFIG_TOUCHSCREEN_SURFACE3_SPI) += surface3_spi.o
70obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o 72obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o
71obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o 73obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o
72obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o 74obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 69d299d5dd00..8a84fd4d9147 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -595,7 +595,7 @@ struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq,
595 } else { 595 } else {
596 input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0); 596 input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
597 input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0); 597 input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
598 touchscreen_parse_properties(input_dev, false); 598 touchscreen_parse_properties(input_dev, false, NULL);
599 if (!input_abs_get_max(input_dev, ABS_PRESSURE)) { 599 if (!input_abs_get_max(input_dev, ABS_PRESSURE)) {
600 dev_err(dev, "Touchscreen pressure is not specified\n"); 600 dev_err(dev, "Touchscreen pressure is not specified\n");
601 return ERR_PTR(-EINVAL); 601 return ERR_PTR(-EINVAL);
diff --git a/drivers/input/touchscreen/chipone_icn8318.c b/drivers/input/touchscreen/chipone_icn8318.c
index 22a6fead8cfb..0bf14067c167 100644
--- a/drivers/input/touchscreen/chipone_icn8318.c
+++ b/drivers/input/touchscreen/chipone_icn8318.c
@@ -17,6 +17,7 @@
17#include <linux/i2c.h> 17#include <linux/i2c.h>
18#include <linux/input.h> 18#include <linux/input.h>
19#include <linux/input/mt.h> 19#include <linux/input/mt.h>
20#include <linux/input/touchscreen.h>
20#include <linux/module.h> 21#include <linux/module.h>
21#include <linux/of.h> 22#include <linux/of.h>
22 23
@@ -52,11 +53,7 @@ struct icn8318_data {
52 struct i2c_client *client; 53 struct i2c_client *client;
53 struct input_dev *input; 54 struct input_dev *input;
54 struct gpio_desc *wake_gpio; 55 struct gpio_desc *wake_gpio;
55 u32 max_x; 56 struct touchscreen_properties prop;
56 u32 max_y;
57 bool invert_x;
58 bool invert_y;
59 bool swap_x_y;
60}; 57};
61 58
62static int icn8318_read_touch_data(struct i2c_client *client, 59static int icn8318_read_touch_data(struct i2c_client *client,
@@ -91,7 +88,7 @@ static irqreturn_t icn8318_irq(int irq, void *dev_id)
91 struct icn8318_data *data = dev_id; 88 struct icn8318_data *data = dev_id;
92 struct device *dev = &data->client->dev; 89 struct device *dev = &data->client->dev;
93 struct icn8318_touch_data touch_data; 90 struct icn8318_touch_data touch_data;
94 int i, ret, x, y; 91 int i, ret;
95 92
96 ret = icn8318_read_touch_data(data->client, &touch_data); 93 ret = icn8318_read_touch_data(data->client, &touch_data);
97 if (ret < 0) { 94 if (ret < 0) {
@@ -124,22 +121,9 @@ static irqreturn_t icn8318_irq(int irq, void *dev_id)
124 if (!act) 121 if (!act)
125 continue; 122 continue;
126 123
127 x = be16_to_cpu(touch->x); 124 touchscreen_report_pos(data->input, &data->prop,
128 y = be16_to_cpu(touch->y); 125 be16_to_cpu(touch->x),
129 126 be16_to_cpu(touch->y), true);
130 if (data->invert_x)
131 x = data->max_x - x;
132
133 if (data->invert_y)
134 y = data->max_y - y;
135
136 if (!data->swap_x_y) {
137 input_event(data->input, EV_ABS, ABS_MT_POSITION_X, x);
138 input_event(data->input, EV_ABS, ABS_MT_POSITION_Y, y);
139 } else {
140 input_event(data->input, EV_ABS, ABS_MT_POSITION_X, y);
141 input_event(data->input, EV_ABS, ABS_MT_POSITION_Y, x);
142 }
143 } 127 }
144 128
145 input_mt_sync_frame(data->input); 129 input_mt_sync_frame(data->input);
@@ -200,10 +184,8 @@ static int icn8318_probe(struct i2c_client *client,
200 const struct i2c_device_id *id) 184 const struct i2c_device_id *id)
201{ 185{
202 struct device *dev = &client->dev; 186 struct device *dev = &client->dev;
203 struct device_node *np = dev->of_node;
204 struct icn8318_data *data; 187 struct icn8318_data *data;
205 struct input_dev *input; 188 struct input_dev *input;
206 u32 fuzz_x = 0, fuzz_y = 0;
207 int error; 189 int error;
208 190
209 if (!client->irq) { 191 if (!client->irq) {
@@ -223,19 +205,6 @@ static int icn8318_probe(struct i2c_client *client,
223 return error; 205 return error;
224 } 206 }
225 207
226 if (of_property_read_u32(np, "touchscreen-size-x", &data->max_x) ||
227 of_property_read_u32(np, "touchscreen-size-y", &data->max_y)) {
228 dev_err(dev, "Error touchscreen-size-x and/or -y missing\n");
229 return -EINVAL;
230 }
231
232 /* Optional */
233 of_property_read_u32(np, "touchscreen-fuzz-x", &fuzz_x);
234 of_property_read_u32(np, "touchscreen-fuzz-y", &fuzz_y);
235 data->invert_x = of_property_read_bool(np, "touchscreen-inverted-x");
236 data->invert_y = of_property_read_bool(np, "touchscreen-inverted-y");
237 data->swap_x_y = of_property_read_bool(np, "touchscreen-swapped-x-y");
238
239 input = devm_input_allocate_device(dev); 208 input = devm_input_allocate_device(dev);
240 if (!input) 209 if (!input)
241 return -ENOMEM; 210 return -ENOMEM;
@@ -246,16 +215,14 @@ static int icn8318_probe(struct i2c_client *client,
246 input->close = icn8318_stop; 215 input->close = icn8318_stop;
247 input->dev.parent = dev; 216 input->dev.parent = dev;
248 217
249 if (!data->swap_x_y) { 218 input_set_capability(input, EV_ABS, ABS_MT_POSITION_X);
250 input_set_abs_params(input, ABS_MT_POSITION_X, 0, 219 input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
251 data->max_x, fuzz_x, 0); 220
252 input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 221 touchscreen_parse_properties(input, true, &data->prop);
253 data->max_y, fuzz_y, 0); 222 if (!input_abs_get_max(input, ABS_MT_POSITION_X) ||
254 } else { 223 !input_abs_get_max(input, ABS_MT_POSITION_Y)) {
255 input_set_abs_params(input, ABS_MT_POSITION_X, 0, 224 dev_err(dev, "Error touchscreen-size-x and/or -y missing\n");
256 data->max_y, fuzz_y, 0); 225 return -EINVAL;
257 input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
258 data->max_x, fuzz_x, 0);
259 } 226 }
260 227
261 error = input_mt_init_slots(input, ICN8318_MAX_TOUCHES, 228 error = input_mt_init_slots(input, ICN8318_MAX_TOUCHES,
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index 91cda8f8119d..79381cc1774a 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -657,7 +657,7 @@ struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops,
657 657
658 input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X); 658 input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_X);
659 input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y); 659 input_set_capability(input_dev, EV_ABS, ABS_MT_POSITION_Y);
660 touchscreen_parse_properties(input_dev, true); 660 touchscreen_parse_properties(input_dev, true, NULL);
661 661
662 error = input_mt_init_slots(input_dev, CY_MAX_ID, 0); 662 error = input_mt_init_slots(input_dev, CY_MAX_ID, 0);
663 if (error) { 663 if (error) {
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 23fbe382da8b..703e295a37ed 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -86,6 +86,7 @@ struct edt_reg_addr {
86struct edt_ft5x06_ts_data { 86struct edt_ft5x06_ts_data {
87 struct i2c_client *client; 87 struct i2c_client *client;
88 struct input_dev *input; 88 struct input_dev *input;
89 struct touchscreen_properties prop;
89 u16 num_x; 90 u16 num_x;
90 u16 num_y; 91 u16 num_y;
91 92
@@ -246,8 +247,8 @@ static irqreturn_t edt_ft5x06_ts_isr(int irq, void *dev_id)
246 if (!down) 247 if (!down)
247 continue; 248 continue;
248 249
249 input_report_abs(tsdata->input, ABS_MT_POSITION_X, x); 250 touchscreen_report_pos(tsdata->input, &tsdata->prop, x, y,
250 input_report_abs(tsdata->input, ABS_MT_POSITION_Y, y); 251 true);
251 } 252 }
252 253
253 input_mt_report_pointer_emulation(tsdata->input, true); 254 input_mt_report_pointer_emulation(tsdata->input, true);
@@ -972,7 +973,7 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
972 input_set_abs_params(input, ABS_MT_POSITION_Y, 973 input_set_abs_params(input, ABS_MT_POSITION_Y,
973 0, tsdata->num_y * 64 - 1, 0, 0); 974 0, tsdata->num_y * 64 - 1, 0, 0);
974 975
975 touchscreen_parse_properties(input, true); 976 touchscreen_parse_properties(input, true, &tsdata->prop);
976 977
977 error = input_mt_init_slots(input, tsdata->max_support_points, 978 error = input_mt_init_slots(input, tsdata->max_support_points,
978 INPUT_MT_DIRECT); 979 INPUT_MT_DIRECT);
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
index c038db93e2c3..02fb11985819 100644
--- a/drivers/input/touchscreen/migor_ts.c
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -202,7 +202,7 @@ static int migor_ts_remove(struct i2c_client *client)
202 return 0; 202 return 0;
203} 203}
204 204
205static int migor_ts_suspend(struct device *dev) 205static int __maybe_unused migor_ts_suspend(struct device *dev)
206{ 206{
207 struct i2c_client *client = to_i2c_client(dev); 207 struct i2c_client *client = to_i2c_client(dev);
208 struct migor_ts_priv *priv = i2c_get_clientdata(client); 208 struct migor_ts_priv *priv = i2c_get_clientdata(client);
@@ -213,7 +213,7 @@ static int migor_ts_suspend(struct device *dev)
213 return 0; 213 return 0;
214} 214}
215 215
216static int migor_ts_resume(struct device *dev) 216static int __maybe_unused migor_ts_resume(struct device *dev)
217{ 217{
218 struct i2c_client *client = to_i2c_client(dev); 218 struct i2c_client *client = to_i2c_client(dev);
219 struct migor_ts_priv *priv = i2c_get_clientdata(client); 219 struct migor_ts_priv *priv = i2c_get_clientdata(client);
@@ -230,7 +230,7 @@ static const struct i2c_device_id migor_ts_id[] = {
230 { "migor_ts", 0 }, 230 { "migor_ts", 0 },
231 { } 231 { }
232}; 232};
233MODULE_DEVICE_TABLE(i2c, migor_ts); 233MODULE_DEVICE_TABLE(i2c, migor_ts_id);
234 234
235static struct i2c_driver migor_ts_driver = { 235static struct i2c_driver migor_ts_driver = {
236 .driver = { 236 .driver = {
diff --git a/drivers/input/touchscreen/of_touchscreen.c b/drivers/input/touchscreen/of_touchscreen.c
index bb6f2fe14667..8d7f9c8f2771 100644
--- a/drivers/input/touchscreen/of_touchscreen.c
+++ b/drivers/input/touchscreen/of_touchscreen.c
@@ -55,12 +55,16 @@ static void touchscreen_set_params(struct input_dev *dev,
55 * @input: input device that should be parsed 55 * @input: input device that should be parsed
56 * @multitouch: specifies whether parsed properties should be applied to 56 * @multitouch: specifies whether parsed properties should be applied to
57 * single-touch or multi-touch axes 57 * single-touch or multi-touch axes
58 * @prop: pointer to a struct touchscreen_properties into which to store
59 * axis swap and invert info for use with touchscreen_report_x_y();
60 * or %NULL
58 * 61 *
59 * This function parses common DT properties for touchscreens and setups the 62 * This function parses common DT properties for touchscreens and setups the
60 * input device accordingly. The function keeps previously set up default 63 * input device accordingly. The function keeps previously set up default
61 * values if no value is specified via DT. 64 * values if no value is specified via DT.
62 */ 65 */
63void touchscreen_parse_properties(struct input_dev *input, bool multitouch) 66void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
67 struct touchscreen_properties *prop)
64{ 68{
65 struct device *dev = input->dev.parent; 69 struct device *dev = input->dev.parent;
66 unsigned int axis; 70 unsigned int axis;
@@ -104,5 +108,80 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch)
104 &fuzz); 108 &fuzz);
105 if (data_present) 109 if (data_present)
106 touchscreen_set_params(input, axis, maximum, fuzz); 110 touchscreen_set_params(input, axis, maximum, fuzz);
111
112 if (!prop)
113 return;
114
115 axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
116
117 prop->max_x = input_abs_get_max(input, axis);
118 prop->max_y = input_abs_get_max(input, axis + 1);
119 prop->invert_x =
120 device_property_read_bool(dev, "touchscreen-inverted-x");
121 prop->invert_y =
122 device_property_read_bool(dev, "touchscreen-inverted-y");
123 prop->swap_x_y =
124 device_property_read_bool(dev, "touchscreen-swapped-x-y");
125
126 if (prop->swap_x_y)
127 swap(input->absinfo[axis], input->absinfo[axis + 1]);
107} 128}
108EXPORT_SYMBOL(touchscreen_parse_properties); 129EXPORT_SYMBOL(touchscreen_parse_properties);
130
131static void
132touchscreen_apply_prop_to_x_y(const struct touchscreen_properties *prop,
133 unsigned int *x, unsigned int *y)
134{
135 if (prop->invert_x)
136 *x = prop->max_x - *x;
137
138 if (prop->invert_y)
139 *y = prop->max_y - *y;
140
141 if (prop->swap_x_y)
142 swap(*x, *y);
143}
144
145/**
146 * touchscreen_set_mt_pos - Set input_mt_pos coordinates
147 * @pos: input_mt_pos to set coordinates of
148 * @prop: pointer to a struct touchscreen_properties
149 * @x: X coordinate to store in pos
150 * @y: Y coordinate to store in pos
151 *
152 * Adjust the passed in x and y values applying any axis inversion and
153 * swapping requested in the passed in touchscreen_properties and store
154 * the result in a struct input_mt_pos.
155 */
156void touchscreen_set_mt_pos(struct input_mt_pos *pos,
157 const struct touchscreen_properties *prop,
158 unsigned int x, unsigned int y)
159{
160 touchscreen_apply_prop_to_x_y(prop, &x, &y);
161 pos->x = x;
162 pos->y = y;
163}
164EXPORT_SYMBOL(touchscreen_set_mt_pos);
165
166/**
167 * touchscreen_report_pos - Report touchscreen coordinates
168 * @input: input_device to report coordinates for
169 * @prop: pointer to a struct touchscreen_properties
170 * @x: X coordinate to report
171 * @y: Y coordinate to report
172 * @multitouch: Report coordinates on single-touch or multi-touch axes
173 *
174 * Adjust the passed in x and y values applying any axis inversion and
175 * swapping requested in the passed in touchscreen_properties and then
176 * report the resulting coordinates on the input_dev's x and y axis.
177 */
178void touchscreen_report_pos(struct input_dev *input,
179 const struct touchscreen_properties *prop,
180 unsigned int x, unsigned int y,
181 bool multitouch)
182{
183 touchscreen_apply_prop_to_x_y(prop, &x, &y);
184 input_report_abs(input, multitouch ? ABS_MT_POSITION_X : ABS_X, x);
185 input_report_abs(input, multitouch ? ABS_MT_POSITION_Y : ABS_Y, y);
186}
187EXPORT_SYMBOL(touchscreen_report_pos);
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 09523a3d3f23..d159e14f4d20 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -27,9 +27,9 @@
27#include <linux/input/touchscreen.h> 27#include <linux/input/touchscreen.h>
28#include <linux/gpio.h> 28#include <linux/gpio.h>
29#include <linux/gpio/consumer.h> 29#include <linux/gpio/consumer.h>
30/*#include <linux/of.h>*/
31#include <linux/of_device.h> 30#include <linux/of_device.h>
32#include <linux/platform_data/pixcir_i2c_ts.h> 31#include <linux/platform_data/pixcir_i2c_ts.h>
32#include <asm/unaligned.h>
33 33
34#define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */ 34#define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */
35 35
@@ -41,19 +41,15 @@ struct pixcir_i2c_ts_data {
41 struct gpio_desc *gpio_enable; 41 struct gpio_desc *gpio_enable;
42 struct gpio_desc *gpio_wake; 42 struct gpio_desc *gpio_wake;
43 const struct pixcir_i2c_chip_data *chip; 43 const struct pixcir_i2c_chip_data *chip;
44 struct touchscreen_properties prop;
44 int max_fingers; /* Max fingers supported in this instance */ 45 int max_fingers; /* Max fingers supported in this instance */
45 bool running; 46 bool running;
46}; 47};
47 48
48struct pixcir_touch {
49 int x;
50 int y;
51 int id;
52};
53
54struct pixcir_report_data { 49struct pixcir_report_data {
55 int num_touches; 50 int num_touches;
56 struct pixcir_touch touches[PIXCIR_MAX_SLOTS]; 51 struct input_mt_pos pos[PIXCIR_MAX_SLOTS];
52 int ids[PIXCIR_MAX_SLOTS];
57}; 53};
58 54
59static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata, 55static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
@@ -98,11 +94,11 @@ static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
98 bufptr = &rdbuf[2]; 94 bufptr = &rdbuf[2];
99 95
100 for (i = 0; i < touch; i++) { 96 for (i = 0; i < touch; i++) {
101 report->touches[i].x = (bufptr[1] << 8) | bufptr[0]; 97 touchscreen_set_mt_pos(&report->pos[i], &tsdata->prop,
102 report->touches[i].y = (bufptr[3] << 8) | bufptr[2]; 98 get_unaligned_le16(bufptr),
103 99 get_unaligned_le16(bufptr + 2));
104 if (chip->has_hw_ids) { 100 if (chip->has_hw_ids) {
105 report->touches[i].id = bufptr[4]; 101 report->ids[i] = bufptr[4];
106 bufptr = bufptr + 5; 102 bufptr = bufptr + 5;
107 } else { 103 } else {
108 bufptr = bufptr + 4; 104 bufptr = bufptr + 4;
@@ -113,9 +109,7 @@ static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
113static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts, 109static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
114 struct pixcir_report_data *report) 110 struct pixcir_report_data *report)
115{ 111{
116 struct input_mt_pos pos[PIXCIR_MAX_SLOTS];
117 int slots[PIXCIR_MAX_SLOTS]; 112 int slots[PIXCIR_MAX_SLOTS];
118 struct pixcir_touch *touch;
119 int n, i, slot; 113 int n, i, slot;
120 struct device *dev = &ts->client->dev; 114 struct device *dev = &ts->client->dev;
121 const struct pixcir_i2c_chip_data *chip = ts->chip; 115 const struct pixcir_i2c_chip_data *chip = ts->chip;
@@ -124,24 +118,16 @@ static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
124 if (n > PIXCIR_MAX_SLOTS) 118 if (n > PIXCIR_MAX_SLOTS)
125 n = PIXCIR_MAX_SLOTS; 119 n = PIXCIR_MAX_SLOTS;
126 120
127 if (!ts->chip->has_hw_ids) { 121 if (!ts->chip->has_hw_ids)
128 for (i = 0; i < n; i++) { 122 input_mt_assign_slots(ts->input, slots, report->pos, n, 0);
129 touch = &report->touches[i];
130 pos[i].x = touch->x;
131 pos[i].y = touch->y;
132 }
133
134 input_mt_assign_slots(ts->input, slots, pos, n, 0);
135 }
136 123
137 for (i = 0; i < n; i++) { 124 for (i = 0; i < n; i++) {
138 touch = &report->touches[i];
139
140 if (chip->has_hw_ids) { 125 if (chip->has_hw_ids) {
141 slot = input_mt_get_slot_by_key(ts->input, touch->id); 126 slot = input_mt_get_slot_by_key(ts->input,
127 report->ids[i]);
142 if (slot < 0) { 128 if (slot < 0) {
143 dev_dbg(dev, "no free slot for id 0x%x\n", 129 dev_dbg(dev, "no free slot for id 0x%x\n",
144 touch->id); 130 report->ids[i]);
145 continue; 131 continue;
146 } 132 }
147 } else { 133 } else {
@@ -149,14 +135,15 @@ static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
149 } 135 }
150 136
151 input_mt_slot(ts->input, slot); 137 input_mt_slot(ts->input, slot);
152 input_mt_report_slot_state(ts->input, 138 input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, true);
153 MT_TOOL_FINGER, true);
154 139
155 input_event(ts->input, EV_ABS, ABS_MT_POSITION_X, touch->x); 140 input_report_abs(ts->input, ABS_MT_POSITION_X,
156 input_event(ts->input, EV_ABS, ABS_MT_POSITION_Y, touch->y); 141 report->pos[i].x);
142 input_report_abs(ts->input, ABS_MT_POSITION_Y,
143 report->pos[i].y);
157 144
158 dev_dbg(dev, "%d: slot %d, x %d, y %d\n", 145 dev_dbg(dev, "%d: slot %d, x %d, y %d\n",
159 i, slot, touch->x, touch->y); 146 i, slot, report->pos[i].x, report->pos[i].y);
160 } 147 }
161 148
162 input_mt_sync_frame(ts->input); 149 input_mt_sync_frame(ts->input);
@@ -515,7 +502,7 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
515 } else { 502 } else {
516 input_set_capability(input, EV_ABS, ABS_MT_POSITION_X); 503 input_set_capability(input, EV_ABS, ABS_MT_POSITION_X);
517 input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y); 504 input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
518 touchscreen_parse_properties(input, true); 505 touchscreen_parse_properties(input, true, &tsdata->prop);
519 if (!input_abs_get_max(input, ABS_MT_POSITION_X) || 506 if (!input_abs_get_max(input, ABS_MT_POSITION_X) ||
520 !input_abs_get_max(input, ABS_MT_POSITION_Y)) { 507 !input_abs_get_max(input, ABS_MT_POSITION_Y)) {
521 dev_err(dev, "Touchscreen size is not specified\n"); 508 dev_err(dev, "Touchscreen size is not specified\n");
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c
new file mode 100644
index 000000000000..a99fb5cac5a0
--- /dev/null
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -0,0 +1,1238 @@
1/*
2 * Raydium touchscreen I2C driver.
3 *
4 * Copyright (C) 2012-2014, Raydium Semiconductor Corporation.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2, and only version 2, as published by the
9 * Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * Raydium reserves the right to make changes without further notice
17 * to the materials described herein. Raydium does not assume any
18 * liability arising out of the application described herein.
19 *
20 * Contact Raydium Semiconductor Corporation at www.rad-ic.com
21 */
22
23#include <linux/acpi.h>
24#include <linux/delay.h>
25#include <linux/firmware.h>
26#include <linux/gpio/consumer.h>
27#include <linux/i2c.h>
28#include <linux/input.h>
29#include <linux/input/mt.h>
30#include <linux/interrupt.h>
31#include <linux/module.h>
32#include <linux/of.h>
33#include <linux/regulator/consumer.h>
34#include <linux/slab.h>
35#include <asm/unaligned.h>
36
37/* Slave I2C mode */
38#define RM_BOOT_BLDR 0x02
39#define RM_BOOT_MAIN 0x03
40
41/* I2C bootoloader commands */
42#define RM_CMD_BOOT_PAGE_WRT 0x0B /* send bl page write */
43#define RM_CMD_BOOT_WRT 0x11 /* send bl write */
44#define RM_CMD_BOOT_ACK 0x22 /* send ack*/
45#define RM_CMD_BOOT_CHK 0x33 /* send data check */
46#define RM_CMD_BOOT_READ 0x44 /* send wait bl data ready*/
47
48#define RM_BOOT_RDY 0xFF /* bl data ready */
49
50/* I2C main commands */
51#define RM_CMD_QUERY_BANK 0x2B
52#define RM_CMD_DATA_BANK 0x4D
53#define RM_CMD_ENTER_SLEEP 0x4E
54#define RM_CMD_BANK_SWITCH 0xAA
55
56#define RM_RESET_MSG_ADDR 0x40000004
57
58#define RM_MAX_READ_SIZE 56
59#define RM_PACKET_CRC_SIZE 2
60
61/* Touch relative info */
62#define RM_MAX_RETRIES 3
63#define RM_MAX_TOUCH_NUM 10
64#define RM_BOOT_DELAY_MS 100
65
66/* Offsets in contact data */
67#define RM_CONTACT_STATE_POS 0
68#define RM_CONTACT_X_POS 1
69#define RM_CONTACT_Y_POS 3
70#define RM_CONTACT_PRESSURE_POS 5
71#define RM_CONTACT_WIDTH_X_POS 6
72#define RM_CONTACT_WIDTH_Y_POS 7
73
74/* Bootloader relative info */
75#define RM_BL_WRT_CMD_SIZE 3 /* bl flash wrt cmd size */
76#define RM_BL_WRT_PKG_SIZE 32 /* bl wrt pkg size */
77#define RM_BL_WRT_LEN (RM_BL_WRT_PKG_SIZE + RM_BL_WRT_CMD_SIZE)
78#define RM_FW_PAGE_SIZE 128
79#define RM_MAX_FW_RETRIES 30
80#define RM_MAX_FW_SIZE 0xD000
81
82#define RM_POWERON_DELAY_USEC 500
83#define RM_RESET_DELAY_MSEC 50
84
85enum raydium_bl_cmd {
86 BL_HEADER = 0,
87 BL_PAGE_STR,
88 BL_PKG_IDX,
89 BL_DATA_STR,
90};
91
92enum raydium_bl_ack {
93 RAYDIUM_ACK_NULL = 0,
94 RAYDIUM_WAIT_READY,
95 RAYDIUM_PATH_READY,
96};
97
98enum raydium_boot_mode {
99 RAYDIUM_TS_MAIN = 0,
100 RAYDIUM_TS_BLDR,
101};
102
103/* Response to RM_CMD_DATA_BANK request */
104struct raydium_data_info {
105 __le32 data_bank_addr;
106 u8 pkg_size;
107 u8 tp_info_size;
108};
109
110struct raydium_info {
111 __le32 hw_ver; /*device version */
112 u8 main_ver;
113 u8 sub_ver;
114 __le16 ft_ver; /* test version */
115 u8 x_num;
116 u8 y_num;
117 __le16 x_max;
118 __le16 y_max;
119 u8 x_res; /* units/mm */
120 u8 y_res; /* units/mm */
121};
122
123/* struct raydium_data - represents state of Raydium touchscreen device */
124struct raydium_data {
125 struct i2c_client *client;
126 struct input_dev *input;
127
128 struct regulator *avdd;
129 struct regulator *vccio;
130 struct gpio_desc *reset_gpio;
131
132 struct raydium_info info;
133
134 struct mutex sysfs_mutex;
135
136 u8 *report_data;
137
138 u32 data_bank_addr;
139 u8 report_size;
140 u8 contact_size;
141 u8 pkg_size;
142
143 enum raydium_boot_mode boot_mode;
144
145 bool wake_irq_enabled;
146};
147
148static int raydium_i2c_send(struct i2c_client *client,
149 u8 addr, const void *data, size_t len)
150{
151 u8 *buf;
152 int tries = 0;
153 int ret;
154
155 buf = kmalloc(len + 1, GFP_KERNEL);
156 if (!buf)
157 return -ENOMEM;
158
159 buf[0] = addr;
160 memcpy(buf + 1, data, len);
161
162 do {
163 ret = i2c_master_send(client, buf, len + 1);
164 if (likely(ret == len + 1))
165 break;
166
167 msleep(20);
168 } while (++tries < RM_MAX_RETRIES);
169
170 kfree(buf);
171
172 if (unlikely(ret != len + 1)) {
173 if (ret >= 0)
174 ret = -EIO;
175 dev_err(&client->dev, "%s failed: %d\n", __func__, ret);
176 return ret;
177 }
178
179 return 0;
180}
181
182static int raydium_i2c_read(struct i2c_client *client,
183 u8 addr, void *data, size_t len)
184{
185 struct i2c_msg xfer[] = {
186 {
187 .addr = client->addr,
188 .len = 1,
189 .buf = &addr,
190 },
191 {
192 .addr = client->addr,
193 .flags = I2C_M_RD,
194 .len = len,
195 .buf = data,
196 }
197 };
198 int ret;
199
200 ret = i2c_transfer(client->adapter, xfer, ARRAY_SIZE(xfer));
201 if (unlikely(ret != ARRAY_SIZE(xfer)))
202 return ret < 0 ? ret : -EIO;
203
204 return 0;
205}
206
207static int raydium_i2c_read_message(struct i2c_client *client,
208 u32 addr, void *data, size_t len)
209{
210 __be32 be_addr;
211 size_t xfer_len;
212 int error;
213
214 while (len) {
215 xfer_len = min_t(size_t, len, RM_MAX_READ_SIZE);
216
217 be_addr = cpu_to_be32(addr);
218
219 error = raydium_i2c_send(client, RM_CMD_BANK_SWITCH,
220 &be_addr, sizeof(be_addr));
221 if (!error)
222 error = raydium_i2c_read(client, addr & 0xff,
223 data, xfer_len);
224 if (error)
225 return error;
226
227 len -= xfer_len;
228 data += xfer_len;
229 addr += xfer_len;
230 }
231
232 return 0;
233}
234
235static int raydium_i2c_send_message(struct i2c_client *client,
236 u32 addr, const void *data, size_t len)
237{
238 __be32 be_addr = cpu_to_be32(addr);
239 int error;
240
241 error = raydium_i2c_send(client, RM_CMD_BANK_SWITCH,
242 &be_addr, sizeof(be_addr));
243 if (!error)
244 error = raydium_i2c_send(client, addr & 0xff, data, len);
245
246 return error;
247}
248
249static int raydium_i2c_sw_reset(struct i2c_client *client)
250{
251 const u8 soft_rst_cmd = 0x01;
252 int error;
253
254 error = raydium_i2c_send_message(client, RM_RESET_MSG_ADDR,
255 &soft_rst_cmd, sizeof(soft_rst_cmd));
256 if (error) {
257 dev_err(&client->dev, "software reset failed: %d\n", error);
258 return error;
259 }
260
261 msleep(RM_RESET_DELAY_MSEC);
262
263 return 0;
264}
265
266static int raydium_i2c_query_ts_info(struct raydium_data *ts)
267{
268 struct i2c_client *client = ts->client;
269 struct raydium_data_info data_info;
270 __le32 query_bank_addr;
271
272 int error, retry_cnt;
273
274 for (retry_cnt = 0; retry_cnt < RM_MAX_RETRIES; retry_cnt++) {
275 error = raydium_i2c_read(client, RM_CMD_DATA_BANK,
276 &data_info, sizeof(data_info));
277 if (error)
278 continue;
279
280 /*
281 * Warn user if we already allocated memory for reports and
282 * then the size changed (due to firmware update?) and keep
283 * old size instead.
284 */
285 if (ts->report_data && ts->pkg_size != data_info.pkg_size) {
286 dev_warn(&client->dev,
287 "report size changes, was: %d, new: %d\n",
288 ts->pkg_size, data_info.pkg_size);
289 } else {
290 ts->pkg_size = data_info.pkg_size;
291 ts->report_size = ts->pkg_size - RM_PACKET_CRC_SIZE;
292 }
293
294 ts->contact_size = data_info.tp_info_size;
295 ts->data_bank_addr = le32_to_cpu(data_info.data_bank_addr);
296
297 dev_dbg(&client->dev,
298 "data_bank_addr: %#08x, report_size: %d, contact_size: %d\n",
299 ts->data_bank_addr, ts->report_size, ts->contact_size);
300
301 error = raydium_i2c_read(client, RM_CMD_QUERY_BANK,
302 &query_bank_addr,
303 sizeof(query_bank_addr));
304 if (error)
305 continue;
306
307 error = raydium_i2c_read_message(client,
308 le32_to_cpu(query_bank_addr),
309 &ts->info, sizeof(ts->info));
310 if (error)
311 continue;
312
313 return 0;
314 }
315
316 dev_err(&client->dev, "failed to query device parameters: %d\n", error);
317 return error;
318}
319
320static int raydium_i2c_check_fw_status(struct raydium_data *ts)
321{
322 struct i2c_client *client = ts->client;
323 static const u8 bl_ack = 0x62;
324 static const u8 main_ack = 0x66;
325 u8 buf[4];
326 int error;
327
328 error = raydium_i2c_read(client, RM_CMD_BOOT_READ, buf, sizeof(buf));
329 if (!error) {
330 if (buf[0] == bl_ack)
331 ts->boot_mode = RAYDIUM_TS_BLDR;
332 else if (buf[0] == main_ack)
333 ts->boot_mode = RAYDIUM_TS_MAIN;
334 return 0;
335 }
336
337 return error;
338}
339
340static int raydium_i2c_initialize(struct raydium_data *ts)
341{
342 struct i2c_client *client = ts->client;
343 int error, retry_cnt;
344
345 for (retry_cnt = 0; retry_cnt < RM_MAX_RETRIES; retry_cnt++) {
346 /* Wait for Hello packet */
347 msleep(RM_BOOT_DELAY_MS);
348
349 error = raydium_i2c_check_fw_status(ts);
350 if (error) {
351 dev_err(&client->dev,
352 "failed to read 'hello' packet: %d\n", error);
353 continue;
354 }
355
356 if (ts->boot_mode == RAYDIUM_TS_BLDR ||
357 ts->boot_mode == RAYDIUM_TS_MAIN) {
358 break;
359 }
360 }
361
362 if (error)
363 ts->boot_mode = RAYDIUM_TS_BLDR;
364
365 if (ts->boot_mode == RAYDIUM_TS_BLDR) {
366 ts->info.hw_ver = cpu_to_le32(0xffffffffUL);
367 ts->info.main_ver = 0xff;
368 ts->info.sub_ver = 0xff;
369 } else {
370 raydium_i2c_query_ts_info(ts);
371 }
372
373 return error;
374}
375
376static int raydium_i2c_bl_chk_state(struct i2c_client *client,
377 enum raydium_bl_ack state)
378{
379 static const u8 ack_ok[] = { 0xFF, 0x39, 0x30, 0x30, 0x54 };
380 u8 rbuf[sizeof(ack_ok)];
381 u8 retry;
382 int error;
383
384 for (retry = 0; retry < RM_MAX_FW_RETRIES; retry++) {
385 switch (state) {
386 case RAYDIUM_ACK_NULL:
387 return 0;
388
389 case RAYDIUM_WAIT_READY:
390 error = raydium_i2c_read(client, RM_CMD_BOOT_CHK,
391 &rbuf[0], 1);
392 if (!error && rbuf[0] == RM_BOOT_RDY)
393 return 0;
394
395 break;
396
397 case RAYDIUM_PATH_READY:
398 error = raydium_i2c_read(client, RM_CMD_BOOT_CHK,
399 rbuf, sizeof(rbuf));
400 if (!error && !memcmp(rbuf, ack_ok, sizeof(ack_ok)))
401 return 0;
402
403 break;
404
405 default:
406 dev_err(&client->dev, "%s: invalid target state %d\n",
407 __func__, state);
408 return -EINVAL;
409 }
410
411 msleep(20);
412 }
413
414 return -ETIMEDOUT;
415}
416
417static int raydium_i2c_write_object(struct i2c_client *client,
418 const void *data, size_t len,
419 enum raydium_bl_ack state)
420{
421 int error;
422
423 error = raydium_i2c_send(client, RM_CMD_BOOT_WRT, data, len);
424 if (error) {
425 dev_err(&client->dev, "WRT obj command failed: %d\n",
426 error);
427 return error;
428 }
429
430 error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, NULL, 0);
431 if (error) {
432 dev_err(&client->dev, "Ack obj command failed: %d\n", error);
433 return error;
434 }
435
436 error = raydium_i2c_bl_chk_state(client, state);
437 if (error) {
438 dev_err(&client->dev, "BL check state failed: %d\n", error);
439 return error;
440 }
441 return 0;
442}
443
444static bool raydium_i2c_boot_trigger(struct i2c_client *client)
445{
446 static const u8 cmd[7][6] = {
447 { 0x08, 0x0C, 0x09, 0x00, 0x50, 0xD7 },
448 { 0x08, 0x04, 0x09, 0x00, 0x50, 0xA5 },
449 { 0x08, 0x04, 0x09, 0x00, 0x50, 0x00 },
450 { 0x08, 0x04, 0x09, 0x00, 0x50, 0xA5 },
451 { 0x08, 0x0C, 0x09, 0x00, 0x50, 0x00 },
452 { 0x06, 0x01, 0x00, 0x00, 0x00, 0x00 },
453 { 0x02, 0xA2, 0x00, 0x00, 0x00, 0x00 },
454 };
455 int i;
456 int error;
457
458 for (i = 0; i < 7; i++) {
459 error = raydium_i2c_write_object(client, cmd[i], sizeof(cmd[i]),
460 RAYDIUM_WAIT_READY);
461 if (error) {
462 dev_err(&client->dev,
463 "boot trigger failed at step %d: %d\n",
464 i, error);
465 return error;
466 }
467 }
468
469 return 0;
470}
471
472static bool raydium_i2c_fw_trigger(struct i2c_client *client)
473{
474 static const u8 cmd[5][11] = {
475 { 0, 0x09, 0x71, 0x0C, 0x09, 0x00, 0x50, 0xD7, 0, 0, 0 },
476 { 0, 0x09, 0x71, 0x04, 0x09, 0x00, 0x50, 0xA5, 0, 0, 0 },
477 { 0, 0x09, 0x71, 0x04, 0x09, 0x00, 0x50, 0x00, 0, 0, 0 },
478 { 0, 0x09, 0x71, 0x04, 0x09, 0x00, 0x50, 0xA5, 0, 0, 0 },
479 { 0, 0x09, 0x71, 0x0C, 0x09, 0x00, 0x50, 0x00, 0, 0, 0 },
480 };
481 int i;
482 int error;
483
484 for (i = 0; i < 5; i++) {
485 error = raydium_i2c_write_object(client, cmd[i], sizeof(cmd[i]),
486 RAYDIUM_ACK_NULL);
487 if (error) {
488 dev_err(&client->dev,
489 "fw trigger failed at step %d: %d\n",
490 i, error);
491 return error;
492 }
493 }
494
495 return 0;
496}
497
498static int raydium_i2c_check_path(struct i2c_client *client)
499{
500 static const u8 cmd[] = { 0x09, 0x00, 0x09, 0x00, 0x50, 0x10, 0x00 };
501 int error;
502
503 error = raydium_i2c_write_object(client, cmd, sizeof(cmd),
504 RAYDIUM_PATH_READY);
505 if (error) {
506 dev_err(&client->dev, "check path command failed: %d\n", error);
507 return error;
508 }
509
510 return 0;
511}
512
513static int raydium_i2c_enter_bl(struct i2c_client *client)
514{
515 static const u8 cal_cmd[] = { 0x00, 0x01, 0x52 };
516 int error;
517
518 error = raydium_i2c_write_object(client, cal_cmd, sizeof(cal_cmd),
519 RAYDIUM_ACK_NULL);
520 if (error) {
521 dev_err(&client->dev, "enter bl command failed: %d\n", error);
522 return error;
523 }
524
525 msleep(RM_BOOT_DELAY_MS);
526 return 0;
527}
528
529static int raydium_i2c_leave_bl(struct i2c_client *client)
530{
531 static const u8 leave_cmd[] = { 0x05, 0x00 };
532 int error;
533
534 error = raydium_i2c_write_object(client, leave_cmd, sizeof(leave_cmd),
535 RAYDIUM_ACK_NULL);
536 if (error) {
537 dev_err(&client->dev, "leave bl command failed: %d\n", error);
538 return error;
539 }
540
541 msleep(RM_BOOT_DELAY_MS);
542 return 0;
543}
544
545static int raydium_i2c_write_checksum(struct i2c_client *client,
546 size_t length, u16 checksum)
547{
548 u8 checksum_cmd[] = { 0x00, 0x05, 0x6D, 0x00, 0x00, 0x00, 0x00 };
549 int error;
550
551 put_unaligned_le16(length, &checksum_cmd[3]);
552 put_unaligned_le16(checksum, &checksum_cmd[5]);
553
554 error = raydium_i2c_write_object(client,
555 checksum_cmd, sizeof(checksum_cmd),
556 RAYDIUM_ACK_NULL);
557 if (error) {
558 dev_err(&client->dev, "failed to write checksum: %d\n",
559 error);
560 return error;
561 }
562
563 return 0;
564}
565
566static int raydium_i2c_disable_watch_dog(struct i2c_client *client)
567{
568 static const u8 cmd[] = { 0x0A, 0xAA };
569 int error;
570
571 error = raydium_i2c_write_object(client, cmd, sizeof(cmd),
572 RAYDIUM_WAIT_READY);
573 if (error) {
574 dev_err(&client->dev, "disable watchdog command failed: %d\n",
575 error);
576 return error;
577 }
578
579 return 0;
580}
581
582static int raydium_i2c_fw_write_page(struct i2c_client *client,
583 u16 page_idx, const void *data, size_t len)
584{
585 u8 buf[RM_BL_WRT_LEN];
586 size_t xfer_len;
587 int error;
588 int i;
589
590 BUILD_BUG_ON((RM_FW_PAGE_SIZE % RM_BL_WRT_PKG_SIZE) != 0);
591
592 for (i = 0; i < RM_FW_PAGE_SIZE / RM_BL_WRT_PKG_SIZE; i++) {
593 buf[BL_HEADER] = RM_CMD_BOOT_PAGE_WRT;
594 buf[BL_PAGE_STR] = page_idx ? 0xff : 0;
595 buf[BL_PKG_IDX] = i + 1;
596
597 xfer_len = min_t(size_t, len, RM_BL_WRT_PKG_SIZE);
598 memcpy(&buf[BL_DATA_STR], data, xfer_len);
599 if (len < RM_BL_WRT_PKG_SIZE)
600 memset(&buf[BL_DATA_STR + xfer_len], 0xff,
601 RM_BL_WRT_PKG_SIZE - xfer_len);
602
603 error = raydium_i2c_write_object(client, buf, RM_BL_WRT_LEN,
604 RAYDIUM_WAIT_READY);
605 if (error) {
606 dev_err(&client->dev,
607 "page write command failed for page %d, chunk %d: %d\n",
608 page_idx, i, error);
609 return error;
610 }
611
612 data += xfer_len;
613 len -= xfer_len;
614 }
615
616 return error;
617}
618
619static u16 raydium_calc_chksum(const u8 *buf, u16 len)
620{
621 u16 checksum = 0;
622 u16 i;
623
624 for (i = 0; i < len; i++)
625 checksum += buf[i];
626
627 return checksum;
628}
629
630static int raydium_i2c_do_update_firmware(struct raydium_data *ts,
631 const struct firmware *fw)
632{
633 struct i2c_client *client = ts->client;
634 const void *data;
635 size_t data_len;
636 size_t len;
637 int page_nr;
638 int i;
639 int error;
640 u16 fw_checksum;
641
642 if (fw->size == 0 || fw->size > RM_MAX_FW_SIZE) {
643 dev_err(&client->dev, "Invalid firmware length\n");
644 return -EINVAL;
645 }
646
647 error = raydium_i2c_check_fw_status(ts);
648 if (error) {
649 dev_err(&client->dev, "Unable to access IC %d\n", error);
650 return error;
651 }
652
653 if (ts->boot_mode == RAYDIUM_TS_MAIN) {
654 for (i = 0; i < RM_MAX_RETRIES; i++) {
655 error = raydium_i2c_enter_bl(client);
656 if (!error) {
657 error = raydium_i2c_check_fw_status(ts);
658 if (error) {
659 dev_err(&client->dev,
660 "unable to access IC: %d\n",
661 error);
662 return error;
663 }
664
665 if (ts->boot_mode == RAYDIUM_TS_BLDR)
666 break;
667 }
668 }
669
670 if (ts->boot_mode == RAYDIUM_TS_MAIN) {
671 dev_err(&client->dev,
672 "failied to jump to boot loader: %d\n",
673 error);
674 return -EIO;
675 }
676 }
677
678 error = raydium_i2c_disable_watch_dog(client);
679 if (error)
680 return error;
681
682 error = raydium_i2c_check_path(client);
683 if (error)
684 return error;
685
686 error = raydium_i2c_boot_trigger(client);
687 if (error) {
688 dev_err(&client->dev, "send boot trigger fail: %d\n", error);
689 return error;
690 }
691
692 msleep(RM_BOOT_DELAY_MS);
693
694 data = fw->data;
695 data_len = fw->size;
696 page_nr = 0;
697
698 while (data_len) {
699 len = min_t(size_t, data_len, RM_FW_PAGE_SIZE);
700
701 error = raydium_i2c_fw_write_page(client, page_nr++, data, len);
702 if (error)
703 return error;
704
705 msleep(20);
706
707 data += len;
708 data_len -= len;
709 }
710
711 error = raydium_i2c_leave_bl(client);
712 if (error) {
713 dev_err(&client->dev,
714 "failed to leave boot loader: %d\n", error);
715 return error;
716 }
717
718 dev_dbg(&client->dev, "left boot loader mode\n");
719 msleep(RM_BOOT_DELAY_MS);
720
721 error = raydium_i2c_check_fw_status(ts);
722 if (error) {
723 dev_err(&client->dev,
724 "failed to check fw status after write: %d\n",
725 error);
726 return error;
727 }
728
729 if (ts->boot_mode != RAYDIUM_TS_MAIN) {
730 dev_err(&client->dev,
731 "failed to switch to main fw after writing firmware: %d\n",
732 error);
733 return -EINVAL;
734 }
735
736 error = raydium_i2c_fw_trigger(client);
737 if (error) {
738 dev_err(&client->dev, "failed to trigger fw: %d\n", error);
739 return error;
740 }
741
742 fw_checksum = raydium_calc_chksum(fw->data, fw->size);
743
744 error = raydium_i2c_write_checksum(client, fw->size, fw_checksum);
745 if (error)
746 return error;
747
748 return 0;
749}
750
751static int raydium_i2c_fw_update(struct raydium_data *ts)
752{
753 struct i2c_client *client = ts->client;
754 const struct firmware *fw = NULL;
755 const char *fw_file = "raydium.fw";
756 int error;
757
758 error = request_firmware(&fw, fw_file, &client->dev);
759 if (error) {
760 dev_err(&client->dev, "Unable to open firmware %s\n", fw_file);
761 return error;
762 }
763
764 disable_irq(client->irq);
765
766 error = raydium_i2c_do_update_firmware(ts, fw);
767 if (error) {
768 dev_err(&client->dev, "firmware update failed: %d\n", error);
769 ts->boot_mode = RAYDIUM_TS_BLDR;
770 goto out_enable_irq;
771 }
772
773 error = raydium_i2c_initialize(ts);
774 if (error) {
775 dev_err(&client->dev,
776 "failed to initialize device after firmware update: %d\n",
777 error);
778 ts->boot_mode = RAYDIUM_TS_BLDR;
779 goto out_enable_irq;
780 }
781
782 ts->boot_mode = RAYDIUM_TS_MAIN;
783
784out_enable_irq:
785 enable_irq(client->irq);
786 msleep(100);
787
788 release_firmware(fw);
789
790 return error;
791}
792
793static void raydium_mt_event(struct raydium_data *ts)
794{
795 int i;
796
797 for (i = 0; i < ts->report_size / ts->contact_size; i++) {
798 u8 *contact = &ts->report_data[ts->contact_size * i];
799 bool state = contact[RM_CONTACT_STATE_POS];
800 u8 wx, wy;
801
802 input_mt_slot(ts->input, i);
803 input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, state);
804
805 if (!state)
806 continue;
807
808 input_report_abs(ts->input, ABS_MT_POSITION_X,
809 get_unaligned_le16(&contact[RM_CONTACT_X_POS]));
810 input_report_abs(ts->input, ABS_MT_POSITION_Y,
811 get_unaligned_le16(&contact[RM_CONTACT_Y_POS]));
812 input_report_abs(ts->input, ABS_MT_PRESSURE,
813 contact[RM_CONTACT_PRESSURE_POS]);
814
815 wx = contact[RM_CONTACT_WIDTH_X_POS];
816 wy = contact[RM_CONTACT_WIDTH_Y_POS];
817
818 input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, max(wx, wy));
819 input_report_abs(ts->input, ABS_MT_TOUCH_MINOR, min(wx, wy));
820 }
821
822 input_mt_sync_frame(ts->input);
823 input_sync(ts->input);
824}
825
826static irqreturn_t raydium_i2c_irq(int irq, void *_dev)
827{
828 struct raydium_data *ts = _dev;
829 int error;
830 u16 fw_crc;
831 u16 calc_crc;
832
833 if (ts->boot_mode != RAYDIUM_TS_MAIN)
834 goto out;
835
836 error = raydium_i2c_read_message(ts->client, ts->data_bank_addr,
837 ts->report_data, ts->pkg_size);
838 if (error)
839 goto out;
840
841 fw_crc = get_unaligned_le16(&ts->report_data[ts->report_size]);
842 calc_crc = raydium_calc_chksum(ts->report_data, ts->report_size);
843 if (unlikely(fw_crc != calc_crc)) {
844 dev_warn(&ts->client->dev,
845 "%s: invalid packet crc %#04x vs %#04x\n",
846 __func__, calc_crc, fw_crc);
847 goto out;
848 }
849
850 raydium_mt_event(ts);
851
852out:
853 return IRQ_HANDLED;
854}
855
856static ssize_t raydium_i2c_fw_ver_show(struct device *dev,
857 struct device_attribute *attr, char *buf)
858{
859 struct i2c_client *client = to_i2c_client(dev);
860 struct raydium_data *ts = i2c_get_clientdata(client);
861
862 return sprintf(buf, "%d.%d\n", ts->info.main_ver, ts->info.sub_ver);
863}
864
865static ssize_t raydium_i2c_hw_ver_show(struct device *dev,
866 struct device_attribute *attr, char *buf)
867{
868 struct i2c_client *client = to_i2c_client(dev);
869 struct raydium_data *ts = i2c_get_clientdata(client);
870
871 return sprintf(buf, "%#04x\n", le32_to_cpu(ts->info.hw_ver));
872}
873
874static ssize_t raydium_i2c_boot_mode_show(struct device *dev,
875 struct device_attribute *attr,
876 char *buf)
877{
878 struct i2c_client *client = to_i2c_client(dev);
879 struct raydium_data *ts = i2c_get_clientdata(client);
880
881 return sprintf(buf, "%s\n",
882 ts->boot_mode == RAYDIUM_TS_MAIN ?
883 "Normal" : "Recovery");
884}
885
886static ssize_t raydium_i2c_update_fw_store(struct device *dev,
887 struct device_attribute *attr,
888 const char *buf, size_t count)
889{
890 struct i2c_client *client = to_i2c_client(dev);
891 struct raydium_data *ts = i2c_get_clientdata(client);
892 int error;
893
894 error = mutex_lock_interruptible(&ts->sysfs_mutex);
895 if (error)
896 return error;
897
898 error = raydium_i2c_fw_update(ts);
899
900 mutex_unlock(&ts->sysfs_mutex);
901
902 return error ?: count;
903}
904
905static ssize_t raydium_i2c_calibrate_store(struct device *dev,
906 struct device_attribute *attr,
907 const char *buf, size_t count)
908{
909 struct i2c_client *client = to_i2c_client(dev);
910 struct raydium_data *ts = i2c_get_clientdata(client);
911 static const u8 cal_cmd[] = { 0x00, 0x01, 0x9E };
912 int error;
913
914 error = mutex_lock_interruptible(&ts->sysfs_mutex);
915 if (error)
916 return error;
917
918 error = raydium_i2c_write_object(client, cal_cmd, sizeof(cal_cmd),
919 RAYDIUM_WAIT_READY);
920 if (error)
921 dev_err(&client->dev, "calibrate command failed: %d\n", error);
922
923 mutex_unlock(&ts->sysfs_mutex);
924 return error ?: count;
925}
926
927static DEVICE_ATTR(fw_version, S_IRUGO, raydium_i2c_fw_ver_show, NULL);
928static DEVICE_ATTR(hw_version, S_IRUGO, raydium_i2c_hw_ver_show, NULL);
929static DEVICE_ATTR(boot_mode, S_IRUGO, raydium_i2c_boot_mode_show, NULL);
930static DEVICE_ATTR(update_fw, S_IWUSR, NULL, raydium_i2c_update_fw_store);
931static DEVICE_ATTR(calibrate, S_IWUSR, NULL, raydium_i2c_calibrate_store);
932
933static struct attribute *raydium_i2c_attributes[] = {
934 &dev_attr_update_fw.attr,
935 &dev_attr_boot_mode.attr,
936 &dev_attr_fw_version.attr,
937 &dev_attr_hw_version.attr,
938 &dev_attr_calibrate.attr,
939 NULL
940};
941
942static struct attribute_group raydium_i2c_attribute_group = {
943 .attrs = raydium_i2c_attributes,
944};
945
946static void raydium_i2c_remove_sysfs_group(void *_data)
947{
948 struct raydium_data *ts = _data;
949
950 sysfs_remove_group(&ts->client->dev.kobj, &raydium_i2c_attribute_group);
951}
952
953static int raydium_i2c_power_on(struct raydium_data *ts)
954{
955 int error;
956
957 if (!ts->reset_gpio)
958 return 0;
959
960 gpiod_set_value_cansleep(ts->reset_gpio, 1);
961
962 error = regulator_enable(ts->avdd);
963 if (error) {
964 dev_err(&ts->client->dev,
965 "failed to enable avdd regulator: %d\n", error);
966 goto release_reset_gpio;
967 }
968
969 error = regulator_enable(ts->vccio);
970 if (error) {
971 regulator_disable(ts->avdd);
972 dev_err(&ts->client->dev,
973 "failed to enable vccio regulator: %d\n", error);
974 goto release_reset_gpio;
975 }
976
977 udelay(RM_POWERON_DELAY_USEC);
978
979release_reset_gpio:
980 gpiod_set_value_cansleep(ts->reset_gpio, 0);
981
982 if (error)
983 return error;
984
985 msleep(RM_RESET_DELAY_MSEC);
986
987 return 0;
988}
989
990static void raydium_i2c_power_off(void *_data)
991{
992 struct raydium_data *ts = _data;
993
994 if (ts->reset_gpio) {
995 gpiod_set_value_cansleep(ts->reset_gpio, 1);
996 regulator_disable(ts->vccio);
997 regulator_disable(ts->avdd);
998 }
999}
1000
1001static int raydium_i2c_probe(struct i2c_client *client,
1002 const struct i2c_device_id *id)
1003{
1004 union i2c_smbus_data dummy;
1005 struct raydium_data *ts;
1006 int error;
1007
1008 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
1009 dev_err(&client->dev,
1010 "i2c check functionality error (need I2C_FUNC_I2C)\n");
1011 return -ENXIO;
1012 }
1013
1014 ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
1015 if (!ts)
1016 return -ENOMEM;
1017
1018 mutex_init(&ts->sysfs_mutex);
1019
1020 ts->client = client;
1021 i2c_set_clientdata(client, ts);
1022
1023 ts->avdd = devm_regulator_get(&client->dev, "avdd");
1024 if (IS_ERR(ts->avdd)) {
1025 error = PTR_ERR(ts->avdd);
1026 if (error != -EPROBE_DEFER)
1027 dev_err(&client->dev,
1028 "Failed to get 'avdd' regulator: %d\n", error);
1029 return error;
1030 }
1031
1032 ts->vccio = devm_regulator_get(&client->dev, "vccio");
1033 if (IS_ERR(ts->vccio)) {
1034 error = PTR_ERR(ts->vccio);
1035 if (error != -EPROBE_DEFER)
1036 dev_err(&client->dev,
1037 "Failed to get 'vccio' regulator: %d\n", error);
1038 return error;
1039 }
1040
1041 ts->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset",
1042 GPIOD_OUT_LOW);
1043 if (IS_ERR(ts->reset_gpio)) {
1044 error = PTR_ERR(ts->reset_gpio);
1045 if (error != -EPROBE_DEFER)
1046 dev_err(&client->dev,
1047 "failed to get reset gpio: %d\n", error);
1048 return error;
1049 }
1050
1051 error = raydium_i2c_power_on(ts);
1052 if (error)
1053 return error;
1054
1055 error = devm_add_action(&client->dev, raydium_i2c_power_off, ts);
1056 if (error) {
1057 dev_err(&client->dev,
1058 "failed to install power off action: %d\n", error);
1059 raydium_i2c_power_off(ts);
1060 return error;
1061 }
1062
1063 /* Make sure there is something at this address */
1064 if (i2c_smbus_xfer(client->adapter, client->addr, 0,
1065 I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &dummy) < 0) {
1066 dev_err(&client->dev, "nothing at this address\n");
1067 return -ENXIO;
1068 }
1069
1070 error = raydium_i2c_initialize(ts);
1071 if (error) {
1072 dev_err(&client->dev, "failed to initialize: %d\n", error);
1073 return error;
1074 }
1075
1076 ts->report_data = devm_kmalloc(&client->dev,
1077 ts->pkg_size, GFP_KERNEL);
1078 if (!ts->report_data)
1079 return -ENOMEM;
1080
1081 ts->input = devm_input_allocate_device(&client->dev);
1082 if (!ts->input) {
1083 dev_err(&client->dev, "Failed to allocate input device\n");
1084 return -ENOMEM;
1085 }
1086
1087 ts->input->name = "Raydium Touchscreen";
1088 ts->input->id.bustype = BUS_I2C;
1089
1090 input_set_drvdata(ts->input, ts);
1091
1092 input_set_abs_params(ts->input, ABS_MT_POSITION_X,
1093 0, le16_to_cpu(ts->info.x_max), 0, 0);
1094 input_set_abs_params(ts->input, ABS_MT_POSITION_Y,
1095 0, le16_to_cpu(ts->info.y_max), 0, 0);
1096 input_abs_set_res(ts->input, ABS_MT_POSITION_X, ts->info.x_res);
1097 input_abs_set_res(ts->input, ABS_MT_POSITION_Y, ts->info.y_res);
1098
1099 input_set_abs_params(ts->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
1100 input_set_abs_params(ts->input, ABS_MT_PRESSURE, 0, 255, 0, 0);
1101
1102 error = input_mt_init_slots(ts->input, RM_MAX_TOUCH_NUM,
1103 INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
1104 if (error) {
1105 dev_err(&client->dev,
1106 "failed to initialize MT slots: %d\n", error);
1107 return error;
1108 }
1109
1110 error = input_register_device(ts->input);
1111 if (error) {
1112 dev_err(&client->dev,
1113 "unable to register input device: %d\n", error);
1114 return error;
1115 }
1116
1117 error = devm_request_threaded_irq(&client->dev, client->irq,
1118 NULL, raydium_i2c_irq,
1119 IRQF_ONESHOT, client->name, ts);
1120 if (error) {
1121 dev_err(&client->dev, "Failed to register interrupt\n");
1122 return error;
1123 }
1124
1125 error = sysfs_create_group(&client->dev.kobj,
1126 &raydium_i2c_attribute_group);
1127 if (error) {
1128 dev_err(&client->dev, "failed to create sysfs attributes: %d\n",
1129 error);
1130 return error;
1131 }
1132
1133 error = devm_add_action(&client->dev,
1134 raydium_i2c_remove_sysfs_group, ts);
1135 if (error) {
1136 raydium_i2c_remove_sysfs_group(ts);
1137 dev_err(&client->dev,
1138 "Failed to add sysfs cleanup action: %d\n", error);
1139 return error;
1140 }
1141
1142 return 0;
1143}
1144
1145static void __maybe_unused raydium_enter_sleep(struct i2c_client *client)
1146{
1147 static const u8 sleep_cmd[] = { 0x5A, 0xff, 0x00, 0x0f };
1148 int error;
1149
1150 error = raydium_i2c_send(client, RM_CMD_ENTER_SLEEP,
1151 sleep_cmd, sizeof(sleep_cmd));
1152 if (error)
1153 dev_err(&client->dev,
1154 "sleep command failed: %d\n", error);
1155}
1156
1157static int __maybe_unused raydium_i2c_suspend(struct device *dev)
1158{
1159 struct i2c_client *client = to_i2c_client(dev);
1160 struct raydium_data *ts = i2c_get_clientdata(client);
1161
1162 /* Sleep is not available in BLDR recovery mode */
1163 if (ts->boot_mode != RAYDIUM_TS_MAIN)
1164 return -EBUSY;
1165
1166 disable_irq(client->irq);
1167
1168 if (device_may_wakeup(dev)) {
1169 raydium_enter_sleep(client);
1170
1171 ts->wake_irq_enabled = (enable_irq_wake(client->irq) == 0);
1172 } else {
1173 raydium_i2c_power_off(ts);
1174 }
1175
1176 return 0;
1177}
1178
1179static int __maybe_unused raydium_i2c_resume(struct device *dev)
1180{
1181 struct i2c_client *client = to_i2c_client(dev);
1182 struct raydium_data *ts = i2c_get_clientdata(client);
1183
1184 if (device_may_wakeup(dev)) {
1185 if (ts->wake_irq_enabled)
1186 disable_irq_wake(client->irq);
1187 raydium_i2c_sw_reset(client);
1188 } else {
1189 raydium_i2c_power_on(ts);
1190 raydium_i2c_initialize(ts);
1191 }
1192
1193 enable_irq(client->irq);
1194
1195 return 0;
1196}
1197
1198static SIMPLE_DEV_PM_OPS(raydium_i2c_pm_ops,
1199 raydium_i2c_suspend, raydium_i2c_resume);
1200
1201static const struct i2c_device_id raydium_i2c_id[] = {
1202 { "raydium_i2c" , 0 },
1203 { "rm32380", 0 },
1204 { /* sentinel */ }
1205};
1206MODULE_DEVICE_TABLE(i2c, raydium_i2c_id);
1207
1208#ifdef CONFIG_ACPI
1209static const struct acpi_device_id raydium_acpi_id[] = {
1210 { "RAYD0001", 0 },
1211 { /* sentinel */ }
1212};
1213MODULE_DEVICE_TABLE(acpi, raydium_acpi_id);
1214#endif
1215
1216#ifdef CONFIG_OF
1217static const struct of_device_id raydium_of_match[] = {
1218 { .compatible = "raydium,rm32380", },
1219 { /* sentinel */ }
1220};
1221MODULE_DEVICE_TABLE(of, raydium_of_match);
1222#endif
1223
1224static struct i2c_driver raydium_i2c_driver = {
1225 .probe = raydium_i2c_probe,
1226 .id_table = raydium_i2c_id,
1227 .driver = {
1228 .name = "raydium_ts",
1229 .pm = &raydium_i2c_pm_ops,
1230 .acpi_match_table = ACPI_PTR(raydium_acpi_id),
1231 .of_match_table = of_match_ptr(raydium_of_match),
1232 },
1233};
1234module_i2c_driver(raydium_i2c_driver);
1235
1236MODULE_AUTHOR("Raydium");
1237MODULE_DESCRIPTION("Raydium I2c Touchscreen driver");
1238MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/surface3_spi.c b/drivers/input/touchscreen/surface3_spi.c
new file mode 100644
index 000000000000..e12fb9b63f31
--- /dev/null
+++ b/drivers/input/touchscreen/surface3_spi.c
@@ -0,0 +1,427 @@
1/*
2 * Driver for Ntrig/Microsoft Touchscreens over SPI
3 *
4 * Copyright (c) 2016 Red Hat Inc.
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the Free
10 * Software Foundation; version 2 of the License.
11 */
12
13#include <linux/kernel.h>
14
15#include <linux/delay.h>
16#include <linux/gpio/consumer.h>
17#include <linux/input.h>
18#include <linux/input/mt.h>
19#include <linux/interrupt.h>
20#include <linux/module.h>
21#include <linux/slab.h>
22#include <linux/spi/spi.h>
23#include <linux/acpi.h>
24
25#include <asm/unaligned.h>
26
27#define SURFACE3_PACKET_SIZE 264
28
29#define SURFACE3_REPORT_TOUCH 0xd2
30#define SURFACE3_REPORT_PEN 0x16
31
32struct surface3_ts_data {
33 struct spi_device *spi;
34 struct gpio_desc *gpiod_rst[2];
35 struct input_dev *input_dev;
36 struct input_dev *pen_input_dev;
37 int pen_tool;
38
39 u8 rd_buf[SURFACE3_PACKET_SIZE] ____cacheline_aligned;
40};
41
42struct surface3_ts_data_finger {
43 u8 status;
44 __le16 tracking_id;
45 __le16 x;
46 __le16 cx;
47 __le16 y;
48 __le16 cy;
49 __le16 width;
50 __le16 height;
51 u32 padding;
52} __packed;
53
54struct surface3_ts_data_pen {
55 u8 status;
56 __le16 x;
57 __le16 y;
58 __le16 pressure;
59 u8 padding;
60} __packed;
61
62static int surface3_spi_read(struct surface3_ts_data *ts_data)
63{
64 struct spi_device *spi = ts_data->spi;
65
66 memset(ts_data->rd_buf, 0, sizeof(ts_data->rd_buf));
67 return spi_read(spi, ts_data->rd_buf, sizeof(ts_data->rd_buf));
68}
69
70static void surface3_spi_report_touch(struct surface3_ts_data *ts_data,
71 struct surface3_ts_data_finger *finger)
72{
73 int st = finger->status & 0x01;
74 int slot;
75
76 slot = input_mt_get_slot_by_key(ts_data->input_dev,
77 get_unaligned_le16(&finger->tracking_id));
78 if (slot < 0)
79 return;
80
81 input_mt_slot(ts_data->input_dev, slot);
82 input_mt_report_slot_state(ts_data->input_dev, MT_TOOL_FINGER, st);
83 if (st) {
84 input_report_abs(ts_data->input_dev,
85 ABS_MT_POSITION_X,
86 get_unaligned_le16(&finger->x));
87 input_report_abs(ts_data->input_dev,
88 ABS_MT_POSITION_Y,
89 get_unaligned_le16(&finger->y));
90 input_report_abs(ts_data->input_dev,
91 ABS_MT_WIDTH_MAJOR,
92 get_unaligned_le16(&finger->width));
93 input_report_abs(ts_data->input_dev,
94 ABS_MT_WIDTH_MINOR,
95 get_unaligned_le16(&finger->height));
96 }
97}
98
99static void surface3_spi_process_touch(struct surface3_ts_data *ts_data, u8 *data)
100{
101 u16 timestamp;
102 unsigned int i;
103 timestamp = get_unaligned_le16(&data[15]);
104
105 for (i = 0; i < 13; i++) {
106 struct surface3_ts_data_finger *finger;
107
108 finger = (struct surface3_ts_data_finger *)&data[17 +
109 i * sizeof(struct surface3_ts_data_finger)];
110
111 /*
112 * When bit 5 of status is 1, it marks the end of the report:
113 * - touch present: 0xe7
114 * - touch released: 0xe4
115 * - nothing valuable: 0xff
116 */
117 if (finger->status & 0x10)
118 break;
119
120 surface3_spi_report_touch(ts_data, finger);
121 }
122
123 input_mt_sync_frame(ts_data->input_dev);
124 input_sync(ts_data->input_dev);
125}
126
127static void surface3_spi_report_pen(struct surface3_ts_data *ts_data,
128 struct surface3_ts_data_pen *pen)
129{
130 struct input_dev *dev = ts_data->pen_input_dev;
131 int st = pen->status;
132 int prox = st & 0x01;
133 int rubber = st & 0x18;
134 int tool = (prox && rubber) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
135
136 /* fake proximity out to switch tools */
137 if (ts_data->pen_tool != tool) {
138 input_report_key(dev, ts_data->pen_tool, 0);
139 input_sync(dev);
140 ts_data->pen_tool = tool;
141 }
142
143 input_report_key(dev, BTN_TOUCH, st & 0x12);
144
145 input_report_key(dev, ts_data->pen_tool, prox);
146
147 if (st) {
148 input_report_key(dev,
149 BTN_STYLUS,
150 st & 0x04);
151
152 input_report_abs(dev,
153 ABS_X,
154 get_unaligned_le16(&pen->x));
155 input_report_abs(dev,
156 ABS_Y,
157 get_unaligned_le16(&pen->y));
158 input_report_abs(dev,
159 ABS_PRESSURE,
160 get_unaligned_le16(&pen->pressure));
161 }
162}
163
164static void surface3_spi_process_pen(struct surface3_ts_data *ts_data, u8 *data)
165{
166 struct surface3_ts_data_pen *pen;
167
168 pen = (struct surface3_ts_data_pen *)&data[15];
169
170 surface3_spi_report_pen(ts_data, pen);
171 input_sync(ts_data->pen_input_dev);
172}
173
174static void surface3_spi_process(struct surface3_ts_data *ts_data)
175{
176 const char header[] = {
177 0xff, 0xff, 0xff, 0xff, 0xa5, 0x5a, 0xe7, 0x7e, 0x01
178 };
179 u8 *data = ts_data->rd_buf;
180
181 if (memcmp(header, data, sizeof(header)))
182 dev_err(&ts_data->spi->dev,
183 "%s header error: %*ph, ignoring...\n",
184 __func__, (int)sizeof(header), data);
185
186 switch (data[9]) {
187 case SURFACE3_REPORT_TOUCH:
188 surface3_spi_process_touch(ts_data, data);
189 break;
190 case SURFACE3_REPORT_PEN:
191 surface3_spi_process_pen(ts_data, data);
192 break;
193 default:
194 dev_err(&ts_data->spi->dev,
195 "%s unknown packet type: %x, ignoring...\n",
196 __func__, data[9]);
197 break;
198 }
199}
200
201static irqreturn_t surface3_spi_irq_handler(int irq, void *dev_id)
202{
203 struct surface3_ts_data *data = dev_id;
204
205 if (surface3_spi_read(data))
206 return IRQ_HANDLED;
207
208 dev_dbg(&data->spi->dev, "%s received -> %*ph\n",
209 __func__, SURFACE3_PACKET_SIZE, data->rd_buf);
210 surface3_spi_process(data);
211
212 return IRQ_HANDLED;
213}
214
215static void surface3_spi_power(struct surface3_ts_data *data, bool on)
216{
217 gpiod_set_value(data->gpiod_rst[0], on);
218 gpiod_set_value(data->gpiod_rst[1], on);
219 /* let the device settle a little */
220 msleep(20);
221}
222
223/**
224 * surface3_spi_get_gpio_config - Get GPIO config from ACPI/DT
225 *
226 * @ts: surface3_spi_ts_data pointer
227 */
228static int surface3_spi_get_gpio_config(struct surface3_ts_data *data)
229{
230 int error;
231 struct device *dev;
232 struct gpio_desc *gpiod;
233 int i;
234
235 dev = &data->spi->dev;
236
237 /* Get the reset lines GPIO pin number */
238 for (i = 0; i < 2; i++) {
239 gpiod = devm_gpiod_get_index(dev, NULL, i, GPIOD_OUT_LOW);
240 if (IS_ERR(gpiod)) {
241 error = PTR_ERR(gpiod);
242 if (error != -EPROBE_DEFER)
243 dev_err(dev,
244 "Failed to get power GPIO %d: %d\n",
245 i,
246 error);
247 return error;
248 }
249
250 data->gpiod_rst[i] = gpiod;
251 }
252
253 return 0;
254}
255
256static int surface3_spi_create_touch_input(struct surface3_ts_data *data)
257{
258 struct input_dev *input;
259 int error;
260
261 input = devm_input_allocate_device(&data->spi->dev);
262 if (!input)
263 return -ENOMEM;
264
265 data->input_dev = input;
266
267 input_set_abs_params(input, ABS_MT_POSITION_X, 0, 9600, 0, 0);
268 input_abs_set_res(input, ABS_MT_POSITION_X, 40);
269 input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 7200, 0, 0);
270 input_abs_set_res(input, ABS_MT_POSITION_Y, 48);
271 input_set_abs_params(input, ABS_MT_WIDTH_MAJOR, 0, 1024, 0, 0);
272 input_set_abs_params(input, ABS_MT_WIDTH_MINOR, 0, 1024, 0, 0);
273 input_mt_init_slots(input, 10, INPUT_MT_DIRECT);
274
275 input->name = "Surface3 SPI Capacitive TouchScreen";
276 input->phys = "input/ts";
277 input->id.bustype = BUS_SPI;
278 input->id.vendor = 0x045e; /* Microsoft */
279 input->id.product = 0x0001;
280 input->id.version = 0x0000;
281
282 error = input_register_device(input);
283 if (error) {
284 dev_err(&data->spi->dev,
285 "Failed to register input device: %d", error);
286 return error;
287 }
288
289 return 0;
290}
291
292static int surface3_spi_create_pen_input(struct surface3_ts_data *data)
293{
294 struct input_dev *input;
295 int error;
296
297 input = devm_input_allocate_device(&data->spi->dev);
298 if (!input)
299 return -ENOMEM;
300
301 data->pen_input_dev = input;
302 data->pen_tool = BTN_TOOL_PEN;
303
304 __set_bit(INPUT_PROP_DIRECT, input->propbit);
305 __set_bit(INPUT_PROP_POINTER, input->propbit);
306 input_set_abs_params(input, ABS_X, 0, 9600, 0, 0);
307 input_abs_set_res(input, ABS_X, 40);
308 input_set_abs_params(input, ABS_Y, 0, 7200, 0, 0);
309 input_abs_set_res(input, ABS_Y, 48);
310 input_set_abs_params(input, ABS_PRESSURE, 0, 1024, 0, 0);
311 input_set_capability(input, EV_KEY, BTN_TOUCH);
312 input_set_capability(input, EV_KEY, BTN_STYLUS);
313 input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
314 input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
315
316 input->name = "Surface3 SPI Pen Input";
317 input->phys = "input/ts";
318 input->id.bustype = BUS_SPI;
319 input->id.vendor = 0x045e; /* Microsoft */
320 input->id.product = 0x0002;
321 input->id.version = 0x0000;
322
323 error = input_register_device(input);
324 if (error) {
325 dev_err(&data->spi->dev,
326 "Failed to register input device: %d", error);
327 return error;
328 }
329
330 return 0;
331}
332
333static int surface3_spi_probe(struct spi_device *spi)
334{
335 struct surface3_ts_data *data;
336 int error;
337
338 /* Set up SPI*/
339 spi->bits_per_word = 8;
340 spi->mode = SPI_MODE_0;
341 error = spi_setup(spi);
342 if (error)
343 return error;
344
345 data = devm_kzalloc(&spi->dev, sizeof(*data), GFP_KERNEL);
346 if (!data)
347 return -ENOMEM;
348
349 data->spi = spi;
350 spi_set_drvdata(spi, data);
351
352 error = surface3_spi_get_gpio_config(data);
353 if (error)
354 return error;
355
356 surface3_spi_power(data, true);
357 surface3_spi_power(data, false);
358 surface3_spi_power(data, true);
359
360 error = surface3_spi_create_touch_input(data);
361 if (error)
362 return error;
363
364 error = surface3_spi_create_pen_input(data);
365 if (error)
366 return error;
367
368 error = devm_request_threaded_irq(&spi->dev, spi->irq,
369 NULL, surface3_spi_irq_handler,
370 IRQF_ONESHOT,
371 "Surface3-irq", data);
372 if (error)
373 return error;
374
375 return 0;
376}
377
378static int __maybe_unused surface3_spi_suspend(struct device *dev)
379{
380 struct spi_device *spi = to_spi_device(dev);
381 struct surface3_ts_data *data = spi_get_drvdata(spi);
382
383 disable_irq(data->spi->irq);
384
385 surface3_spi_power(data, false);
386
387 return 0;
388}
389
390static int __maybe_unused surface3_spi_resume(struct device *dev)
391{
392 struct spi_device *spi = to_spi_device(dev);
393 struct surface3_ts_data *data = spi_get_drvdata(spi);
394
395 surface3_spi_power(data, true);
396
397 enable_irq(data->spi->irq);
398
399 return 0;
400}
401
402static SIMPLE_DEV_PM_OPS(surface3_spi_pm_ops,
403 surface3_spi_suspend,
404 surface3_spi_resume);
405
406#ifdef CONFIG_ACPI
407static const struct acpi_device_id surface3_spi_acpi_match[] = {
408 { "MSHW0037", 0 },
409 { }
410};
411MODULE_DEVICE_TABLE(acpi, surface3_spi_acpi_match);
412#endif
413
414static struct spi_driver surface3_spi_driver = {
415 .driver = {
416 .name = "Surface3-spi",
417 .acpi_match_table = ACPI_PTR(surface3_spi_acpi_match),
418 .pm = &surface3_spi_pm_ops,
419 },
420 .probe = surface3_spi_probe,
421};
422
423module_spi_driver(surface3_spi_driver);
424
425MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
426MODULE_DESCRIPTION("Surface 3 SPI touchscreen driver");
427MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 8b3f15ca7725..7953381d939a 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -406,7 +406,7 @@ static int titsc_probe(struct platform_device *pdev)
406 int err; 406 int err;
407 407
408 /* Allocate memory for device */ 408 /* Allocate memory for device */
409 ts_dev = kzalloc(sizeof(struct titsc), GFP_KERNEL); 409 ts_dev = kzalloc(sizeof(*ts_dev), GFP_KERNEL);
410 input_dev = input_allocate_device(); 410 input_dev = input_allocate_device();
411 if (!ts_dev || !input_dev) { 411 if (!ts_dev || !input_dev) {
412 dev_err(&pdev->dev, "failed to allocate memory.\n"); 412 dev_err(&pdev->dev, "failed to allocate memory.\n");
diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index dfa7f1c4f545..b7059ed8872e 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -568,7 +568,7 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
568 input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0); 568 input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
569 569
570 if (np) 570 if (np)
571 touchscreen_parse_properties(input_dev, false); 571 touchscreen_parse_properties(input_dev, false, NULL);
572 572
573 input_dev->open = tsc200x_open; 573 input_dev->open = tsc200x_open;
574 input_dev->close = tsc200x_close; 574 input_dev->close = tsc200x_close;
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index b6fc4bde79de..85e95725d0df 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -518,13 +518,21 @@ static int w8001_setup_touch(struct w8001 *w8001, char *basename,
518 w8001->pktlen = W8001_PKTLEN_TOUCH2FG; 518 w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
519 519
520 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); 520 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
521 input_mt_init_slots(dev, 2, 0); 521 error = input_mt_init_slots(dev, 2, 0);
522 if (error) {
523 dev_err(&w8001->serio->dev,
524 "failed to initialize MT slots: %d\n", error);
525 return error;
526 }
527
522 input_set_abs_params(dev, ABS_MT_POSITION_X, 528 input_set_abs_params(dev, ABS_MT_POSITION_X,
523 0, touch.x, 0, 0); 529 0, touch.x, 0, 0);
524 input_set_abs_params(dev, ABS_MT_POSITION_Y, 530 input_set_abs_params(dev, ABS_MT_POSITION_Y,
525 0, touch.y, 0, 0); 531 0, touch.y, 0, 0);
526 input_set_abs_params(dev, ABS_MT_TOOL_TYPE, 532 input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
527 0, MT_TOOL_MAX, 0, 0); 533 0, MT_TOOL_MAX, 0, 0);
534 input_abs_set_res(dev, ABS_MT_POSITION_X, touch.panel_res);
535 input_abs_set_res(dev, ABS_MT_POSITION_Y, touch.panel_res);
528 536
529 strlcat(basename, " 2FG", basename_sz); 537 strlcat(basename, " 2FG", basename_sz);
530 if (w8001->max_pen_x && w8001->max_pen_y) 538 if (w8001->max_pen_x && w8001->max_pen_y)
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-04 01:26:25 -0400