[RFC PATCH 11/11] input: RMI4 F11 - multifinger pointing
From: Christopher Heiny
Date: Wed Dec 21 2011 - 21:20:56 EST
Signed-off-by: Christopher Heiny <cheiny@xxxxxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxxxxxx>
Cc: Naveen Kumar Gaddipati <naveen.gaddipati@xxxxxxxxxxxxxx>
Cc: Joeri de Gram <j.de.gram@xxxxxxxxx>
---
drivers/input/rmi4/rmi_f11.c | 1860 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 1860 insertions(+), 0 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
new file mode 100644
index 0000000..9516995
--- /dev/null
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -0,0 +1,1860 @@
+/*
+ * Copyright (c) 2011 Synaptics Incorporated
+ * Copyright (c) 2011 Unixphere
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/rmi.h>
+
+#define RESUME_REZERO (1 && defined(CONFIG_PM))
+#if RESUME_REZERO
+#include <linux/delay.h>
+#define DEFAULT_REZERO_WAIT_MS 40
+#endif
+
+#define F11_MAX_NUM_OF_SENSORS 8
+#define F11_MAX_NUM_OF_FINGERS 10
+#define F11_MAX_NUM_OF_TOUCH_SHAPES 16
+
+#define F11_REL_POS_MIN -128
+#define F11_REL_POS_MAX 127
+
+#define F11_FINGER_STATE_MASK 0x03
+#define F11_FINGER_STATE_SIZE 0x02
+#define F11_FINGER_STATE_MASK_N(i) \
+ (F11_FINGER_STATE_MASK << (i%4 * F11_FINGER_STATE_SIZE))
+
+#define F11_FINGER_STATE_VAL_N(f_state, i) \
+ (f_state >> (i%4 * F11_FINGER_STATE_SIZE))
+
+#define F11_CTRL_SENSOR_MAX_X_POS_OFFSET 6
+#define F11_CTRL_SENSOR_MAX_Y_POS_OFFSET 8
+
+#define F11_CEIL(x, y) (((x) + ((y)-1)) / (y))
+
+/* By default, we'll support two fingers if we can't figure out how many we
+ * really need to handle.
+ */
+#define DEFAULT_NR_OF_FINGERS 2
+#define DEFAULT_XY_MAX 9999
+#define DEFAULT_MAX_ABS_MT_PRESSURE 255
+#define DEFAULT_MAX_ABS_MT_TOUCH 15
+#define DEFAULT_MAX_ABS_MT_ORIENTATION 1
+#define DEFAULT_MIN_ABS_MT_TRACKING_ID 1
+#define DEFAULT_MAX_ABS_MT_TRACKING_ID 10
+#define MAX_LEN 256
+
+static ssize_t f11_flip_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static ssize_t f11_flip_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+static ssize_t f11_clip_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static ssize_t f11_clip_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+static ssize_t f11_offset_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static ssize_t f11_offset_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+static ssize_t f11_swap_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static ssize_t f11_swap_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+static ssize_t f11_relreport_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+static ssize_t f11_relreport_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+static ssize_t f11_maxPos_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static ssize_t f11_rezero_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+
+#if RESUME_REZERO
+static ssize_t f11_rezeroOnResume_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+static ssize_t f11_rezeroOnResume_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+static ssize_t f11_rezeroWait_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+static ssize_t f11_rezeroWait_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count);
+#endif
+
+
+static inline void rmi_f11_free_memory(struct rmi_function_container *fc);
+
+static inline int rmi_f11_initialize(struct rmi_function_container *fc);
+
+static inline int rmi_f11_create_sysfs(struct rmi_function_container *fc);
+
+static int rmi_f11_config(struct rmi_function_container *fc);
+
+static int rmi_f11_reset(struct rmi_function_container *fc);
+
+static inline int rmi_f11_register_devices(struct rmi_function_container *fc);
+
+static inline void rmi_f11_free_devices(struct rmi_function_container *fc);
+
+
+static struct device_attribute attrs[] = {
+ __ATTR(flip, RMI_RW_ATTR, f11_flip_show, f11_flip_store),
+ __ATTR(clip, RMI_RW_ATTR, f11_clip_show, f11_clip_store),
+ __ATTR(offset, RMI_RW_ATTR, f11_offset_show, f11_offset_store),
+ __ATTR(swap, RMI_RW_ATTR, f11_swap_show, f11_swap_store),
+ __ATTR(relreport, RMI_RW_ATTR, f11_relreport_show, f11_relreport_store),
+ __ATTR(maxPos, RMI_RO_ATTR, f11_maxPos_show, rmi_store_error),
+#if RESUME_REZERO
+ __ATTR(rezeroOnResume, RMI_RW_ATTR, f11_rezeroOnResume_show,
+ f11_rezeroOnResume_store),
+ __ATTR(rezeroWait, RMI_RW_ATTR, f11_rezeroWait_show,
+ f11_rezeroWait_store),
+#endif
+ __ATTR(rezero, RMI_WO_ATTR, rmi_show_error, f11_rezero_store)
+};
+
+
+union f11_2d_commands {
+ struct {
+ u8 rezero:1;
+ };
+ u8 reg;
+};
+
+struct f11_2d_device_query {
+ union {
+ struct {
+ u8 nbr_of_sensors:3;
+ u8 has_query9:1;
+ u8 has_query11:1;
+ };
+ u8 f11_2d_query0;
+ };
+
+ union {
+ struct {
+ u8 has_z_tuning:1;
+ u8 has_pos_interpolation_tuning:1;
+ u8 has_w_tuning:1;
+ u8 has_pitch_info:1;
+ u8 has_default_finger_width:1;
+ u8 has_segmentation_aggressiveness:1;
+ u8 has_tx_rw_clip:1;
+ u8 has_drumming_correction:1;
+ };
+ u8 f11_2d_query11;
+ };
+};
+
+union f11_2d_query9 {
+ struct {
+ u8 has_pen:1;
+ u8 has_proximity:1;
+ u8 has_palm_det_sensitivity:1;
+ u8 has_suppress_on_palm_detect:1;
+ u8 has_two_pen_thresholds:1;
+ u8 has_contact_geometry:1;
+ };
+ u8 reg;
+};
+
+struct f11_2d_sensor_query {
+ union {
+ struct {
+ /* query1 */
+ u8 number_of_fingers:3;
+ u8 has_rel:1;
+ u8 has_abs:1;
+ u8 has_gestures:1;
+ u8 has_sensitivity_adjust:1;
+ u8 configurable:1;
+ /* query2 */
+ u8 num_of_x_electrodes:7;
+ /* query3 */
+ u8 num_of_y_electrodes:7;
+ /* query4 */
+ u8 max_electrodes:7;
+ };
+ u8 f11_2d_query1__4[4];
+ };
+
+ union {
+ struct {
+ u8 abs_data_size:3;
+ u8 has_anchored_finger:1;
+ u8 has_adj_hyst:1;
+ u8 has_dribble:1;
+ };
+ u8 f11_2d_query5;
+ };
+
+ u8 f11_2d_query6;
+
+ union {
+ struct {
+ u8 has_single_tap:1;
+ u8 has_tap_n_hold:1;
+ u8 has_double_tap:1;
+ u8 has_early_tap:1;
+ u8 has_flick:1;
+ u8 has_press:1;
+ u8 has_pinch:1;
+ u8 padding:1;
+
+ u8 has_palm_det:1;
+ u8 has_rotate:1;
+ u8 has_touch_shapes:1;
+ u8 has_scroll_zones:1;
+ u8 has_individual_scroll_zones:1;
+ u8 has_multi_finger_scroll:1;
+ };
+ u8 f11_2d_query7__8[2];
+ };
+
+ /* Empty */
+ union f11_2d_query9 *query9;
+
+ union {
+ struct {
+ u8 nbr_touch_shapes:5;
+ };
+ u8 f11_2d_query10;
+ };
+};
+
+union f11_2d_ctrl10 {
+ struct {
+ u8 single_tap_int_enable:1;
+ u8 tap_n_hold_int_enable:1;
+ u8 double_tap_int_enable:1;
+ u8 early_tap_int_enable:1;
+ u8 flick_int_enable:1;
+ u8 press_int_enable:1;
+ u8 pinch_int_enable:1;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl11 {
+ struct {
+ u8 palm_detect_int_enable:1;
+ u8 rotate_int_enable:1;
+ u8 touch_shape_int_enable:1;
+ u8 scroll_zone_int_enable:1;
+ u8 multi_finger_scroll_int_enable:1;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl12 {
+ struct {
+ u8 sensor_map:7;
+ u8 xy_sel:1;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl14 {
+ struct {
+ u8 sens_adjustment:5;
+ u8 hyst_adjustment:3;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl15 {
+ struct {
+ u8 max_tap_time:8;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl16 {
+ struct {
+ u8 min_press_time:8;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl17 {
+ struct {
+ u8 max_tap_distance:8;
+ };
+ u8 reg;
+};
+
+union f11_2d_ctrl18_19 {
+ struct {
+ u8 min_flick_distance:8;
+ u8 min_flick_speed:8;
+ };
+ u8 reg[2];
+};
+
+union f11_2d_ctrl20_21 {
+ struct {
+ u8 pen_detect_enable:1;
+ u8 pen_jitter_filter_enable:1;
+ u8 ctrl20_reserved:6;
+ u8 pen_z_threshold:8;
+ };
+ u8 reg[2];
+};
+
+struct f11_2d_ctrl {
+
+ union {
+ struct {
+ /* F11_2D_Ctrl0 */
+ u8 reporting_mode:3;
+ u8 abs_pos_filt:1;
+ u8 rel_pos_filt:1;
+ u8 rel_ballistics:1;
+ u8 dribble:1;
+ u8 report_beyond_clip:1;
+ /* F11_2D_Ctrl1 */
+ u8 palm_detect_thres:4;
+ u8 motion_sensitivity:2;
+ u8 man_track_en:1;
+ u8 man_tracked_finger:1;
+ /* F11_2D_Ctrl2 and 3 */
+ u8 delta_x_threshold:8;
+ u8 delta_y_threshold:8;
+ /* F11_2D_Ctrl4 and 5 */
+ u8 velocity:8;
+ u8 acceleration:8;
+ /* F11_2D_Ctrl6 thru 9 */
+ u16 sensor_max_x_pos:12;
+ u8 ctrl7_reserved:4;
+ u16 sensor_max_y_pos:12;
+ u8 ctrl9_reserved:4;
+ };
+ u8 ctrl0_9[10];
+ };
+
+ union f11_2d_ctrl10 *ctrl10;
+ union f11_2d_ctrl11 *ctrl11;
+ union f11_2d_ctrl12 *ctrl12;
+ u8 ctrl12_size;
+ union f11_2d_ctrl14 *ctrl14;
+ union f11_2d_ctrl15 *ctrl15;
+ union f11_2d_ctrl16 *ctrl16;
+ union f11_2d_ctrl17 *ctrl17;
+ union f11_2d_ctrl18_19 *ctrl18_19;
+ union f11_2d_ctrl20_21 *ctrl20_21;
+};
+
+struct f11_2d_data_0 {
+ u8 finger_n;
+};
+
+struct f11_2d_data_1_5 {
+ u8 x_msb;
+ u8 y_msb;
+ u8 x_lsb:4;
+ u8 y_lsb:4;
+ u8 w_y:4;
+ u8 w_x:4;
+ u8 z;
+};
+
+struct f11_2d_data_6_7 {
+ s8 delta_x;
+ s8 delta_y;
+};
+
+struct f11_2d_data_8 {
+ u8 single_tap:1;
+ u8 tap_and_hold:1;
+ u8 double_tap:1;
+ u8 early_tap:1;
+ u8 flick:1;
+ u8 press:1;
+ u8 pinch:1;
+};
+
+struct f11_2d_data_9 {
+ u8 palm_detect:1;
+ u8 rotate:1;
+ u8 shape:1;
+ u8 scrollzone:1;
+ u8 finger_count:3;
+};
+
+struct f11_2d_data_10 {
+ u8 pinch_motion;
+};
+
+struct f11_2d_data_10_12 {
+ u8 x_flick_dist;
+ u8 y_flick_dist;
+ u8 flick_time;
+};
+
+struct f11_2d_data_11_12 {
+ u8 motion;
+ u8 finger_separation;
+};
+
+struct f11_2d_data_13 {
+ u8 shape_n;
+};
+
+struct f11_2d_data_14_15 {
+ u8 horizontal;
+ u8 vertical;
+};
+
+struct f11_2d_data_14_17 {
+ u8 x_low;
+ u8 y_right;
+ u8 x_upper;
+ u8 y_left;
+};
+
+struct f11_2d_data {
+ const struct f11_2d_data_0 *f_state;
+ const struct f11_2d_data_1_5 *abs_pos;
+ const struct f11_2d_data_6_7 *rel_pos;
+ const struct f11_2d_data_8 *gest_1;
+ const struct f11_2d_data_9 *gest_2;
+ const struct f11_2d_data_10 *pinch;
+ const struct f11_2d_data_10_12 *flick;
+ const struct f11_2d_data_11_12 *rotate;
+ const struct f11_2d_data_13 *shapes;
+ const struct f11_2d_data_14_15 *multi_scroll;
+ const struct f11_2d_data_14_17 *scroll_zones;
+};
+
+struct f11_2d_sensor {
+ struct rmi_f11_2d_axis_alignment axis_align;
+ struct f11_2d_sensor_query sens_query;
+ struct f11_2d_data data;
+ u16 max_x;
+ u16 max_y;
+ u8 nbr_fingers;
+ u8 finger_tracker[F11_MAX_NUM_OF_FINGERS];
+ u8 *data_pkt;
+ int pkt_size;
+ u8 sensor_index;
+ char input_name[MAX_LEN];
+ char input_phys[MAX_LEN];
+ struct input_dev *input;
+ struct input_dev *mouse_input;
+};
+
+struct f11_data {
+ struct f11_2d_device_query dev_query;
+ struct f11_2d_ctrl dev_controls;
+#if RESUME_REZERO
+ u16 rezero_wait_ms;
+ bool rezero_on_resume;
+#endif
+ struct f11_2d_sensor sensors[F11_MAX_NUM_OF_SENSORS];
+};
+
+enum finger_state_values {
+ F11_NO_FINGER = 0x00,
+ F11_PRESENT = 0x01,
+ F11_INACCURATE = 0x02,
+ F11_RESERVED = 0x03
+};
+
+static void rmi_f11_rel_pos_report(struct f11_2d_sensor *sensor, u8 n_finger)
+{
+ struct f11_2d_data *data = &sensor->data;
+ struct rmi_f11_2d_axis_alignment *axis_align = &sensor->axis_align;
+ s8 x, y;
+ s8 temp;
+
+ x = data->rel_pos[n_finger].delta_x;
+ y = data->rel_pos[n_finger].delta_y;
+
+ x = min(F11_REL_POS_MAX, max(F11_REL_POS_MIN, (int)x));
+ y = min(F11_REL_POS_MAX, max(F11_REL_POS_MIN, (int)y));
+
+ if (axis_align->swap_axes) {
+ temp = x;
+ x = y;
+ y = temp;
+ }
+ if (axis_align->flip_x)
+ x = min(F11_REL_POS_MAX, -x);
+ if (axis_align->flip_y)
+ y = min(F11_REL_POS_MAX, -y);
+
+ if (x || y) {
+ input_report_rel(sensor->input, REL_X, x);
+ input_report_rel(sensor->input, REL_Y, y);
+ input_report_rel(sensor->mouse_input, REL_X, x);
+ input_report_rel(sensor->mouse_input, REL_Y, y);
+ }
+ input_sync(sensor->mouse_input);
+}
+
+static void rmi_f11_abs_pos_report(struct f11_2d_sensor *sensor,
+ u8 finger_state, u8 n_finger)
+{
+ struct f11_2d_data *data = &sensor->data;
+ struct rmi_f11_2d_axis_alignment *axis_align = &sensor->axis_align;
+ int prev_state = sensor->finger_tracker[n_finger];
+ int x, y, z;
+ int w_x, w_y, w_max, w_min, orient;
+ int temp;
+
+ if (prev_state && !finger_state) {
+ /* this is a release */
+ x = y = z = w_max = w_min = orient = 0;
+ } else if (!prev_state && !finger_state) {
+ /* nothing to report */
+ return;
+ } else {
+ x = ((data->abs_pos[n_finger].x_msb << 4) |
+ data->abs_pos[n_finger].x_lsb);
+ y = ((data->abs_pos[n_finger].y_msb << 4) |
+ data->abs_pos[n_finger].y_lsb);
+ z = data->abs_pos[n_finger].z;
+ w_x = data->abs_pos[n_finger].w_x;
+ w_y = data->abs_pos[n_finger].w_y;
+ w_max = max(w_x, w_y);
+ w_min = min(w_x, w_y);
+
+ if (axis_align->swap_axes) {
+ temp = x;
+ x = y;
+ y = temp;
+ temp = w_x;
+ w_x = w_y;
+ w_y = temp;
+ }
+
+ orient = w_x > w_y ? 1 : 0;
+
+ if (axis_align->flip_x)
+ x = max(sensor->max_x - x, 0);
+
+ if (axis_align->flip_y)
+ y = max(sensor->max_y - y, 0);
+
+ /*
+ ** here checking if X offset or y offset are specified is
+ ** redundant. We just add the offsets or, clip the values
+ **
+ ** note: offsets need to be done before clipping occurs,
+ ** or we could get funny values that are outside
+ ** clipping boundaries.
+ */
+ x += axis_align->offset_X;
+ y += axis_align->offset_Y;
+ x = max(axis_align->clip_X_low, x);
+ y = max(axis_align->clip_Y_low, y);
+ if (axis_align->clip_X_high)
+ x = min(axis_align->clip_X_high, x);
+ if (axis_align->clip_Y_high)
+ y = min(axis_align->clip_Y_high, y);
+
+ }
+
+ pr_debug("%s: f_state[%d]:%d - x:%d y:%d z:%d w_max:%d w_min:%d\n",
+ __func__, n_finger, finger_state, x, y, z, w_max, w_min);
+
+
+#ifdef ABS_MT_PRESSURE
+ input_report_abs(sensor->input, ABS_MT_PRESSURE, z);
+#endif
+ input_report_abs(sensor->input, ABS_MT_TOUCH_MAJOR, w_max);
+ input_report_abs(sensor->input, ABS_MT_TOUCH_MINOR, w_min);
+ input_report_abs(sensor->input, ABS_MT_ORIENTATION, orient);
+ input_report_abs(sensor->input, ABS_MT_POSITION_X, x);
+ input_report_abs(sensor->input, ABS_MT_POSITION_Y, y);
+ input_report_abs(sensor->input, ABS_MT_TRACKING_ID, n_finger);
+
+ /* MT sync between fingers */
+ input_mt_sync(sensor->input);
+ sensor->finger_tracker[n_finger] = finger_state;
+}
+
+static void rmi_f11_finger_handler(struct f11_2d_sensor *sensor)
+{
+ const struct f11_2d_data_0 *f_state = sensor->data.f_state;
+ u8 finger_state;
+ u8 finger_pressed_count;
+ u8 i;
+
+ for (i = 0, finger_pressed_count = 0; i < sensor->nbr_fingers; i++) {
+ /* Possible of having 4 fingers per f_statet register */
+ finger_state = (f_state[i >> 2].finger_n &
+ F11_FINGER_STATE_MASK_N(i));
+ finger_state = F11_FINGER_STATE_VAL_N(finger_state, i);
+
+ if (finger_state == F11_RESERVED) {
+ pr_err("%s: Invalid finger state[%d]:0x%02x.", __func__,
+ i, finger_state);
+ continue;
+ } else if ((finger_state == F11_PRESENT) ||
+ (finger_state == F11_INACCURATE)) {
+ finger_pressed_count++;
+ }
+
+ if (sensor->data.abs_pos)
+ rmi_f11_abs_pos_report(sensor, finger_state, i);
+
+ if (sensor->data.rel_pos)
+ rmi_f11_rel_pos_report(sensor, i);
+ }
+ input_report_key(sensor->input, BTN_TOUCH, finger_pressed_count);
+ input_sync(sensor->input);
+}
+
+static inline int f11_2d_construct_data(struct f11_2d_sensor *sensor)
+{
+ struct f11_2d_sensor_query *query = &sensor->sens_query;
+ struct f11_2d_data *data = &sensor->data;
+ int i;
+
+ sensor->nbr_fingers = (query->number_of_fingers == 5 ? 10 :
+ query->number_of_fingers + 1);
+
+ sensor->pkt_size = F11_CEIL(sensor->nbr_fingers, 4);
+
+ if (query->has_abs)
+ sensor->pkt_size += (sensor->nbr_fingers * 5);
+
+ if (query->has_rel)
+ sensor->pkt_size += (sensor->nbr_fingers * 2);
+
+ /* Check if F11_2D_Query7 is non-zero */
+ if (query->f11_2d_query7__8[0])
+ sensor->pkt_size += sizeof(u8);
+
+ /* Check if F11_2D_Query7 or F11_2D_Query8 is non-zero */
+ if (query->f11_2d_query7__8[0] || query->f11_2d_query7__8[1])
+ sensor->pkt_size += sizeof(u8);
+
+ if (query->has_pinch || query->has_flick || query->has_rotate) {
+ sensor->pkt_size += 3;
+ if (!query->has_flick)
+ sensor->pkt_size--;
+ if (!query->has_rotate)
+ sensor->pkt_size--;
+ }
+
+ if (query->has_touch_shapes)
+ sensor->pkt_size += F11_CEIL(query->nbr_touch_shapes + 1, 8);
+
+ sensor->data_pkt = kzalloc(sensor->pkt_size, GFP_KERNEL);
+ if (!sensor->data_pkt)
+ return -ENOMEM;
+
+ data->f_state = (struct f11_2d_data_0 *)sensor->data_pkt;
+ i = F11_CEIL(sensor->nbr_fingers, 4);
+
+ if (query->has_abs) {
+ data->abs_pos = (struct f11_2d_data_1_5 *)
+ &sensor->data_pkt[i];
+ i += (sensor->nbr_fingers * 5);
+ }
+
+ if (query->has_rel) {
+ data->rel_pos = (struct f11_2d_data_6_7 *)
+ &sensor->data_pkt[i];
+ i += (sensor->nbr_fingers * 2);
+ }
+
+ if (query->f11_2d_query7__8[0]) {
+ data->gest_1 = (struct f11_2d_data_8 *)&sensor->data_pkt[i];
+ i++;
+ }
+
+ if (query->f11_2d_query7__8[0] || query->f11_2d_query7__8[1]) {
+ data->gest_2 = (struct f11_2d_data_9 *)&sensor->data_pkt[i];
+ i++;
+ }
+
+ if (query->has_pinch) {
+ data->pinch = (struct f11_2d_data_10 *)&sensor->data_pkt[i];
+ i++;
+ }
+
+ if (query->has_flick) {
+ if (query->has_pinch) {
+ data->flick = (struct f11_2d_data_10_12 *)data->pinch;
+ i += 2;
+ } else {
+ data->flick = (struct f11_2d_data_10_12 *)
+ &sensor->data_pkt[i];
+ i += 3;
+ }
+ }
+
+ if (query->has_rotate) {
+ if (query->has_flick) {
+ data->rotate = (struct f11_2d_data_11_12 *)
+ (data->flick + 1);
+ } else {
+ data->rotate = (struct f11_2d_data_11_12 *)
+ &sensor->data_pkt[i];
+ i += 2;
+ }
+ }
+
+ if (query->has_touch_shapes)
+ data->shapes = (struct f11_2d_data_13 *)&sensor->data_pkt[i];
+
+ return 0;
+}
+
+static void f11_free_control_regs(struct f11_2d_ctrl *ctrl)
+{
+ kfree(ctrl->ctrl10);
+ kfree(ctrl->ctrl11);
+ kfree(ctrl->ctrl14);
+ kfree(ctrl->ctrl15);
+ kfree(ctrl->ctrl16);
+ kfree(ctrl->ctrl17);
+ kfree(ctrl->ctrl18_19);
+ kfree(ctrl->ctrl20_21);
+ ctrl->ctrl10 = NULL;
+ ctrl->ctrl11 = NULL;
+ ctrl->ctrl14 = NULL;
+ ctrl->ctrl15 = NULL;
+ ctrl->ctrl16 = NULL;
+ ctrl->ctrl17 = NULL;
+ ctrl->ctrl18_19 = NULL;
+ ctrl->ctrl20_21 = NULL;
+}
+
+static int f11_read_control_regs(struct rmi_device *rmi_dev,
+ struct f11_2d_ctrl *ctrl,
+ int ctrl_base_addr) {
+ int read_address = ctrl_base_addr;
+ int error = 0;
+
+ error = rmi_read_block(rmi_dev, read_address, ctrl->ctrl0_9,
+ sizeof(ctrl->ctrl0_9));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl0, code: %d.\n", error);
+ return error;
+ }
+ read_address = read_address + sizeof(ctrl->ctrl0_9);
+
+ if (ctrl->ctrl10) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl10->reg, sizeof(union f11_2d_ctrl10));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl10, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl10);
+ }
+
+ if (ctrl->ctrl11) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl11->reg, sizeof(union f11_2d_ctrl11));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl11, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl11);
+ }
+
+ if (ctrl->ctrl14) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl14->reg, sizeof(union f11_2d_ctrl14));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl14, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl14);
+ }
+
+ if (ctrl->ctrl15) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl15->reg, sizeof(union f11_2d_ctrl15));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl15, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl15);
+ }
+
+ if (ctrl->ctrl16) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl16->reg, sizeof(union f11_2d_ctrl16));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl16, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl16);
+ }
+
+ if (ctrl->ctrl17) {
+ error = rmi_read_block(rmi_dev, read_address,
+ &ctrl->ctrl17->reg, sizeof(union f11_2d_ctrl17));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl17, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl17);
+ }
+
+ if (ctrl->ctrl18_19) {
+ error = rmi_read_block(rmi_dev, read_address,
+ ctrl->ctrl18_19->reg, sizeof(union f11_2d_ctrl18_19));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl18_19, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl18_19);
+ }
+
+ if (ctrl->ctrl20_21) {
+ error = rmi_read_block(rmi_dev, read_address,
+ ctrl->ctrl20_21->reg, sizeof(union f11_2d_ctrl20_21));
+ if (error < 0) {
+ dev_err(&rmi_dev->dev,
+ "Failed to read F11 ctrl20_21, code: %d.\n",
+ error);
+ return error;
+ }
+ read_address = read_address + sizeof(union f11_2d_ctrl20_21);
+ }
+
+ return 0;
+}
+
+static int f11_allocate_control_regs(struct rmi_device *rmi_dev,
+ struct f11_2d_device_query *device_query,
+ struct f11_2d_sensor_query *sensor_query,
+ struct f11_2d_ctrl *ctrl,
+ int ctrl_base_addr) {
+ int error = 0;
+
+ if (sensor_query->f11_2d_query7__8[0]) {
+ ctrl->ctrl10 = kzalloc(sizeof(union f11_2d_ctrl10),
+ GFP_KERNEL);
+ if (!ctrl->ctrl10) {
+ error = -ENOMEM;
+ goto error_exit;
+ }
+ }
+
+ if (sensor_query->f11_2d_query7__8[1]) {
+ ctrl->ctrl11 = kzalloc(sizeof(union f11_2d_ctrl11),
+ GFP_KERNEL);
+ if (!ctrl->ctrl11) {
+ error = -ENOMEM;
+ goto error_exit;
+ }
+ }
+
+ if (device_query->has_query9 && sensor_query->query9->has_pen) {
+ ctrl->ctrl20_21 = kzalloc(sizeof(union f11_2d_ctrl20_21),
+ GFP_KERNEL);
+ if (!ctrl->ctrl20_21) {
+ error = -ENOMEM;
+ goto error_exit;
+ }
+ }
+
+ return f11_read_control_regs(rmi_dev, ctrl, ctrl_base_addr);
+
+error_exit:
+ f11_free_control_regs(ctrl);
+ return error;
+}
+
+static inline int f11_write_control_regs(struct rmi_device *rmi_dev,
+ struct f11_2d_sensor_query *query,
+ struct f11_2d_ctrl *ctrl,
+ int ctrl_base_addr)
+{
+ int write_address = ctrl_base_addr;
+ int error;
+
+ error = rmi_write_block(rmi_dev, write_address,
+ ctrl->ctrl0_9, sizeof(ctrl->ctrl0_9));
+ if (error < 0)
+ return error;
+ write_address += sizeof(ctrl->ctrl0_9);
+
+ if (ctrl->ctrl10) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl10->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl11) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl11->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl12 && ctrl->ctrl12_size && query->configurable) {
+ if (ctrl->ctrl12_size > query->max_electrodes) {
+ dev_err(&rmi_dev->dev,
+ "%s: invalid cfg size:%d, should be < %d.\n",
+ __func__, ctrl->ctrl12_size,
+ query->max_electrodes);
+ return -EINVAL;
+ }
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl12->reg,
+ ctrl->ctrl12_size);
+ if (error < 0)
+ return error;
+ write_address += ctrl->ctrl12_size;
+ }
+
+ if (ctrl->ctrl14) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl14->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl15) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl15->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl16) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl16->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl17) {
+ error = rmi_write_block(rmi_dev, write_address,
+ &ctrl->ctrl17->reg, 1);
+ if (error < 0)
+ return error;
+ write_address++;
+ }
+
+ if (ctrl->ctrl18_19) {
+ error = rmi_write_block(rmi_dev, write_address,
+ ctrl->ctrl18_19->reg, sizeof(union f11_2d_ctrl18_19));
+ if (error < 0)
+ return error;
+ write_address += sizeof(union f11_2d_ctrl18_19);
+ }
+
+ if (ctrl->ctrl20_21) {
+ error = rmi_write_block(rmi_dev, write_address,
+ ctrl->ctrl20_21->reg,
+ sizeof(union f11_2d_ctrl20_21));
+ if (error < 0)
+ return error;
+ write_address += sizeof(union f11_2d_ctrl20_21);
+ }
+
+ return 0;
+}
+
+static inline int rmi_f11_get_query_parameters(struct rmi_device *rmi_dev,
+ struct f11_2d_sensor_query *query, u8 query_base_addr)
+{
+ int query_size;
+ int rc;
+
+ rc = rmi_read_block(rmi_dev, query_base_addr, query->f11_2d_query1__4,
+ sizeof(query->f11_2d_query1__4));
+ if (rc < 0)
+ return rc;
+ query_size = rc;
+
+ if (query->has_abs) {
+ rc = rmi_read(rmi_dev, query_base_addr + query_size,
+ &query->f11_2d_query5);
+ if (rc < 0)
+ return rc;
+ query_size++;
+ }
+
+ if (query->has_rel) {
+ rc = rmi_read(rmi_dev, query_base_addr + query_size,
+ &query->f11_2d_query6);
+ if (rc < 0)
+ return rc;
+ query_size++;
+ }
+
+ if (query->has_gestures) {
+ rc = rmi_read_block(rmi_dev, query_base_addr + query_size,
+ query->f11_2d_query7__8,
+ sizeof(query->f11_2d_query7__8));
+ if (rc < 0)
+ return rc;
+ query_size += sizeof(query->f11_2d_query7__8);
+ }
+
+ if (query->has_touch_shapes) {
+ rc = rmi_read(rmi_dev, query_base_addr + query_size,
+ &query->f11_2d_query10);
+ if (rc < 0)
+ return rc;
+ query_size++;
+ }
+
+ return query_size;
+}
+
+/* This operation is done in a number of places, so we have a handy routine
+ * for it.
+ */
+static void f11_set_abs_params(struct rmi_function_container *fc, int index)
+{
+ struct f11_data *instance_data = fc->data;
+ struct input_dev *input = instance_data->sensors[index].input;
+ int device_x_max =
+ instance_data->dev_controls.sensor_max_x_pos;
+ int device_y_max =
+ instance_data->dev_controls.sensor_max_y_pos;
+ int x_min, x_max, y_min, y_max;
+
+ if (instance_data->sensors[index].axis_align.swap_axes) {
+ int temp = device_x_max;
+ device_x_max = device_y_max;
+ device_y_max = temp;
+ }
+
+ /* Use the max X and max Y read from the device, or the clip values,
+ * whichever is stricter.
+ */
+ x_min = instance_data->sensors[index].axis_align.clip_X_low;
+ if (instance_data->sensors[index].axis_align.clip_X_high)
+ x_max = min((int) device_x_max,
+ instance_data->sensors[index].axis_align.clip_X_high);
+ else
+ x_max = device_x_max;
+
+ y_min = instance_data->sensors[index].axis_align.clip_Y_low;
+ if (instance_data->sensors[index].axis_align.clip_Y_high)
+ y_max = min((int) device_y_max,
+ instance_data->sensors[index].axis_align.clip_Y_high);
+ else
+ y_max = device_y_max;
+
+ dev_dbg(&fc->dev, "Set ranges X=[%d..%d] Y=[%d..%d].",
+ x_min, x_max, y_min, y_max);
+
+#ifdef ABS_MT_PRESSURE
+ input_set_abs_params(input, ABS_MT_PRESSURE, 0,
+ DEFAULT_MAX_ABS_MT_PRESSURE, 0, 0);
+#endif
+ input_set_abs_params(input, ABS_MT_TOUCH_MAJOR,
+ 0, DEFAULT_MAX_ABS_MT_TOUCH, 0, 0);
+ input_set_abs_params(input, ABS_MT_TOUCH_MINOR,
+ 0, DEFAULT_MAX_ABS_MT_TOUCH, 0, 0);
+ input_set_abs_params(input, ABS_MT_ORIENTATION,
+ 0, DEFAULT_MAX_ABS_MT_ORIENTATION, 0, 0);
+ input_set_abs_params(input, ABS_MT_TRACKING_ID,
+ DEFAULT_MIN_ABS_MT_TRACKING_ID,
+ DEFAULT_MAX_ABS_MT_TRACKING_ID, 0, 0);
+ /* TODO get max_x_pos (and y) from control registers. */
+ input_set_abs_params(input, ABS_MT_POSITION_X,
+ x_min, x_max, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y,
+ y_min, y_max, 0, 0);
+}
+
+
+static int rmi_f11_init(struct rmi_function_container *fc)
+{
+ int rc;
+
+ rc = rmi_f11_initialize(fc);
+ if (rc < 0)
+ goto err_free_data;
+
+ rc = rmi_f11_register_devices(fc);
+ if (rc < 0)
+ goto err_free_data;
+
+ rc = rmi_f11_create_sysfs(fc);
+ if (rc < 0)
+ goto err_free_data;
+
+ return 0;
+
+err_free_data:
+ rmi_f11_free_memory(fc);
+
+ return rc;
+}
+
+
+static inline void rmi_f11_free_memory(struct rmi_function_container *fc)
+{
+ struct f11_data *f11 = fc->data;
+
+ if (f11) {
+ f11_free_control_regs(&f11->dev_controls);
+ kfree(f11);
+ fc->data = NULL;
+ }
+}
+
+
+static inline int rmi_f11_initialize(struct rmi_function_container *fc)
+{
+ struct rmi_device *rmi_dev = fc->rmi_dev;
+ struct rmi_device_platform_data *pdata;
+ struct f11_data *f11;
+ u8 query_offset;
+ u8 query_base_addr;
+ u8 control_base_addr;
+ u16 max_x_pos, max_y_pos, temp;
+ int rc;
+ int i;
+
+ pdata = to_rmi_platform_data(rmi_dev);
+ dev_dbg(&fc->dev, "Initializing F11 values for %s.\n",
+ pdata->sensor_name);
+
+ /*
+ ** init instance data, fill in values and create any sysfs files
+ */
+ f11 = kzalloc(sizeof(struct f11_data), GFP_KERNEL);
+ if (!f11)
+ return -ENOMEM;
+
+ fc->data = f11;
+#if RESUME_REZERO
+ f11->rezero_on_resume = true;
+ f11->rezero_wait_ms = DEFAULT_REZERO_WAIT_MS;
+#endif
+
+ query_base_addr = fc->fd.query_base_addr;
+ control_base_addr = fc->fd.control_base_addr;
+
+ rc = rmi_read(rmi_dev, query_base_addr, &f11->dev_query.f11_2d_query0);
+ if (rc < 0)
+ return rc;
+
+ query_offset = (query_base_addr + 1);
+ /* Increase with one since number of sensors is zero based */
+ for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) {
+ f11->sensors[i].sensor_index = i;
+
+ rc = rmi_f11_get_query_parameters(rmi_dev,
+ &f11->sensors[i].sens_query,
+ query_offset);
+ if (rc < 0)
+ return rc;
+ query_offset += rc;
+ rc = f11_allocate_control_regs(rmi_dev,
+ &f11->dev_query, &f11->sensors[i].sens_query,
+ &f11->dev_controls, control_base_addr);
+ if (rc < 0) {
+ dev_err(&fc->dev,
+ "Failed to initialize F11 control params.\n");
+ return rc;
+ }
+
+ f11->sensors[i].axis_align = pdata->axis_align;
+
+ rc = rmi_read_block(rmi_dev,
+ control_base_addr + F11_CTRL_SENSOR_MAX_X_POS_OFFSET,
+ (u8 *)&max_x_pos, sizeof(max_x_pos));
+ if (rc < 0)
+ return rc;
+
+ rc = rmi_read_block(rmi_dev,
+ control_base_addr + F11_CTRL_SENSOR_MAX_Y_POS_OFFSET,
+ (u8 *)&max_y_pos, sizeof(max_y_pos));
+ if (rc < 0)
+ return rc;
+
+ if (pdata->axis_align.swap_axes) {
+ temp = max_x_pos;
+ max_x_pos = max_y_pos;
+ max_y_pos = temp;
+ }
+ f11->sensors[i].max_x = max_x_pos;
+ f11->sensors[i].max_y = max_y_pos;
+
+ rc = f11_2d_construct_data(&f11->sensors[i]);
+ if (rc < 0)
+ return rc;
+ }
+
+ return 0;
+}
+
+
+static inline int rmi_f11_register_devices(struct rmi_function_container *fc)
+{
+ struct rmi_device *rmi_dev = fc->rmi_dev;
+ struct f11_data *f11 = fc->data;
+ struct input_dev *input_dev;
+ struct input_dev *input_dev_mouse;
+ int sensors_itertd = 0;
+ int i;
+ int rc;
+
+ for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) {
+ sensors_itertd = i;
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ rc = -ENOMEM;
+ goto error_unregister;
+ }
+
+ f11->sensors[i].input = input_dev;
+ /* TODO how to modify the dev name and
+ * phys name for input device */
+ sprintf(f11->sensors[i].input_name, "%sfn%02x",
+ dev_name(&rmi_dev->dev), fc->fd.function_number);
+ input_dev->name = f11->sensors[i].input_name;
+ sprintf(f11->sensors[i].input_phys, "%s/input0",
+ input_dev->name);
+ input_dev->phys = f11->sensors[i].input_phys;
+ input_dev->dev.parent = &rmi_dev->dev;
+ input_set_drvdata(input_dev, f11);
+
+ set_bit(EV_SYN, input_dev->evbit);
+ set_bit(EV_KEY, input_dev->evbit);
+ set_bit(EV_ABS, input_dev->evbit);
+
+ f11_set_abs_params(fc, i);
+
+ dev_dbg(&fc->dev, "%s: Sensor %d hasRel %d.\n",
+ __func__, i, f11->sensors[i].sens_query.has_rel);
+ if (f11->sensors[i].sens_query.has_rel) {
+ set_bit(EV_REL, input_dev->evbit);
+ set_bit(REL_X, input_dev->relbit);
+ set_bit(REL_Y, input_dev->relbit);
+ }
+ rc = input_register_device(input_dev);
+ if (rc < 0) {
+ input_free_device(input_dev);
+ f11->sensors[i].input = NULL;
+ goto error_unregister;
+ }
+
+ if (f11->sensors[i].sens_query.has_rel) {
+ /*create input device for mouse events */
+ input_dev_mouse = input_allocate_device();
+ if (!input_dev_mouse) {
+ rc = -ENOMEM;
+ goto error_unregister;
+ }
+
+ f11->sensors[i].mouse_input = input_dev_mouse;
+ input_dev_mouse->name = "rmi_mouse";
+ input_dev_mouse->phys = "rmi_f11/input0";
+
+ input_dev_mouse->id.vendor = 0x18d1;
+ input_dev_mouse->id.product = 0x0210;
+ input_dev_mouse->id.version = 0x0100;
+
+ set_bit(EV_REL, input_dev_mouse->evbit);
+ set_bit(REL_X, input_dev_mouse->relbit);
+ set_bit(REL_Y, input_dev_mouse->relbit);
+
+ set_bit(BTN_MOUSE, input_dev_mouse->evbit);
+ /* Register device's buttons and keys */
+ set_bit(EV_KEY, input_dev_mouse->evbit);
+ set_bit(BTN_LEFT, input_dev_mouse->keybit);
+ set_bit(BTN_MIDDLE, input_dev_mouse->keybit);
+ set_bit(BTN_RIGHT, input_dev_mouse->keybit);
+
+ rc = input_register_device(input_dev_mouse);
+ if (rc < 0) {
+ input_free_device(input_dev_mouse);
+ f11->sensors[i].mouse_input = NULL;
+ goto error_unregister;
+ }
+
+ set_bit(BTN_RIGHT, input_dev_mouse->keybit);
+ }
+
+ }
+
+ return 0;
+
+error_unregister:
+ for (; sensors_itertd > 0; sensors_itertd--) {
+ if (f11->sensors[sensors_itertd].input) {
+ if (f11->sensors[sensors_itertd].mouse_input) {
+ input_unregister_device(
+ f11->sensors[sensors_itertd].mouse_input);
+ f11->sensors[sensors_itertd].mouse_input = NULL;
+ }
+ input_unregister_device(f11->sensors[i].input);
+ f11->sensors[i].input = NULL;
+ }
+ }
+
+ return rc;
+}
+
+
+static void rmi_f11_free_devices(struct rmi_function_container *fc)
+{
+ struct f11_data *f11 = fc->data;
+ int i;
+
+ for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) {
+ if (f11->sensors[i].input)
+ input_unregister_device(f11->sensors[i].input);
+ if (f11->sensors[i].sens_query.has_rel &&
+ f11->sensors[i].mouse_input)
+ input_unregister_device(f11->sensors[i].mouse_input);
+ }
+}
+
+
+
+static inline int rmi_f11_create_sysfs(struct rmi_function_container *fc)
+{
+ int attr_count = 0;
+ int rc;
+
+ dev_dbg(&fc->dev, "Creating sysfs files.\n");
+ /* Set up sysfs device attributes. */
+ for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) {
+ if (sysfs_create_file
+ (&fc->dev.kobj, &attrs[attr_count].attr) < 0) {
+ dev_err(&fc->dev,
+ "Failed to create sysfs file for %s.",
+ attrs[attr_count].attr.name);
+ rc = -ENODEV;
+ goto err_remove_sysfs;
+ }
+ }
+
+ return 0;
+
+err_remove_sysfs:
+ for (attr_count--; attr_count >= 0; attr_count--)
+ sysfs_remove_file(&fc->dev.kobj,
+ &attrs[attr_count].attr);
+ return rc;
+
+}
+
+
+
+static int rmi_f11_config(struct rmi_function_container *fc)
+{
+ struct f11_data *f11 = fc->data;
+ int i;
+ int rc;
+
+ for (i = 0; i < (f11->dev_query.nbr_of_sensors + 1); i++) {
+ rc = f11_write_control_regs(fc->rmi_dev,
+ &f11->sensors[i].sens_query,
+ &f11->dev_controls,
+ fc->fd.query_base_addr);
+ if (rc < 0)
+ return rc;
+ }
+
+ return 0;
+}
+
+
+
+static int rmi_f11_reset(struct rmi_function_container *fc)
+{
+ /* we do nothing here */
+ return 0;
+}
+
+
+int rmi_f11_attention(struct rmi_function_container *fc, u8 *irq_bits)
+{
+ struct rmi_device *rmi_dev = fc->rmi_dev;
+ struct f11_data *f11 = fc->data;
+ u8 data_base_addr = fc->fd.data_base_addr;
+ int data_base_addr_offset = 0;
+ int error;
+ int i;
+
+ for (i = 0; i < f11->dev_query.nbr_of_sensors + 1; i++) {
+ error = rmi_read_block(rmi_dev,
+ data_base_addr + data_base_addr_offset,
+ f11->sensors[i].data_pkt,
+ f11->sensors[i].pkt_size);
+ if (error < 0)
+ return error;
+
+ rmi_f11_finger_handler(&f11->sensors[i]);
+ data_base_addr_offset += f11->sensors[i].pkt_size;
+ }
+
+ return 0;
+}
+
+#if RESUME_REZERO
+static int rmi_f11_resume(struct rmi_function_container *fc)
+{
+ struct rmi_device *rmi_dev = fc->rmi_dev;
+ struct f11_data *data = fc->data;
+ /* Command register always reads as 0, so we can just use a local. */
+ union f11_2d_commands commands = {};
+ int retval = 0;
+
+ dev_dbg(&fc->dev, "Resuming...\n");
+ if (!data->rezero_on_resume)
+ return 0;
+
+ if (data->rezero_wait_ms)
+ mdelay(data->rezero_wait_ms);
+
+ commands.rezero = 1;
+ retval = rmi_write_block(rmi_dev, fc->fd.command_base_addr,
+ &commands.reg, sizeof(commands.reg));
+ if (retval < 0) {
+ dev_err(&rmi_dev->dev, "%s: failed to issue rezero command, "
+ "error = %d.", __func__, retval);
+ return retval;
+ }
+
+ return retval;
+}
+#endif /* RESUME_REZERO */
+
+
+static void rmi_f11_remove(struct rmi_function_container *fc)
+{
+ int attr_count = 0;
+
+ for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) {
+ sysfs_remove_file(&fc->dev.kobj,
+ &attrs[attr_count].attr);
+ }
+
+ rmi_f11_free_devices(fc);
+
+ rmi_f11_free_memory(fc);
+
+}
+
+static struct rmi_function_handler function_handler = {
+ .func = 0x11,
+ .init = rmi_f11_init,
+ .config = rmi_f11_config,
+ .reset = rmi_f11_reset,
+ .attention = rmi_f11_attention,
+ .remove = rmi_f11_remove
+#if RESUME_REZERO
+#ifdef CONFIG_HAS_EARLYSUSPEND
+ ,
+ .late_resume = rmi_f11_resume
+#else
+ .resume = rmi_f11_resume
+#endif /* CONFIG_HAS_EARLYSUSPEND */
+#endif
+};
+
+static int __init rmi_f11_module_init(void)
+{
+ int error;
+
+ error = rmi_register_function_driver(&function_handler);
+ if (error < 0) {
+ pr_err("%s: register failed!\n", __func__);
+ return error;
+ }
+
+ return 0;
+}
+
+static void __exit rmi_f11_module_exit(void)
+{
+ rmi_unregister_function_driver(&function_handler);
+}
+
+static ssize_t f11_maxPos_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *data;
+
+ fc = to_rmi_function_container(dev);
+ data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u %u\n",
+ data->sensors[0].max_x, data->sensors[0].max_y);
+}
+
+static ssize_t f11_flip_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *data;
+
+ fc = to_rmi_function_container(dev);
+ data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u %u\n",
+ data->sensors[0].axis_align.flip_x,
+ data->sensors[0].axis_align.flip_y);
+}
+
+static ssize_t f11_flip_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+ unsigned int new_X, new_Y;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+
+ if (sscanf(buf, "%u %u", &new_X, &new_Y) != 2)
+ return -EINVAL;
+ if (new_X < 0 || new_X > 1 || new_Y < 0 || new_Y > 1)
+ return -EINVAL;
+ instance_data->sensors[0].axis_align.flip_x = new_X;
+ instance_data->sensors[0].axis_align.flip_y = new_Y;
+
+ return count;
+}
+
+static ssize_t f11_swap_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ instance_data->sensors[0].axis_align.swap_axes);
+}
+
+static ssize_t f11_swap_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+ unsigned int newSwap;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+
+ if (sscanf(buf, "%u", &newSwap) != 1)
+ return -EINVAL;
+ if (newSwap < 0 || newSwap > 1)
+ return -EINVAL;
+ instance_data->sensors[0].axis_align.swap_axes = newSwap;
+
+ f11_set_abs_params(fc, 0);
+
+ return count;
+}
+
+static ssize_t f11_relreport_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ instance_data->
+ sensors[0].axis_align.rel_report_enabled);
+}
+
+static ssize_t f11_relreport_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+ unsigned int new_value;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+
+ if (sscanf(buf, "%u", &new_value) != 1)
+ return -EINVAL;
+ if (new_value < 0 || new_value > 1)
+ return -EINVAL;
+ instance_data->sensors[0].axis_align.rel_report_enabled = new_value;
+
+ return count;
+}
+
+static ssize_t f11_offset_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%d %d\n",
+ instance_data->sensors[0].axis_align.offset_X,
+ instance_data->sensors[0].axis_align.offset_Y);
+}
+
+static ssize_t f11_offset_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+ int new_X, new_Y;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+
+ if (sscanf(buf, "%d %d", &new_X, &new_Y) != 2)
+ return -EINVAL;
+ instance_data->sensors[0].axis_align.offset_X = new_X;
+ instance_data->sensors[0].axis_align.offset_Y = new_Y;
+
+ return count;
+}
+
+static ssize_t f11_clip_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u %u %u %u\n",
+ instance_data->sensors[0].axis_align.clip_X_low,
+ instance_data->sensors[0].axis_align.clip_X_high,
+ instance_data->sensors[0].axis_align.clip_Y_low,
+ instance_data->sensors[0].axis_align.clip_Y_high);
+}
+
+static ssize_t f11_clip_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+ unsigned int new_X_low, new_X_high, new_Y_low, new_Y_high;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ if (sscanf(buf, "%u %u %u %u",
+ &new_X_low, &new_X_high, &new_Y_low, &new_Y_high) != 4)
+ return -EINVAL;
+ if (new_X_low < 0 || new_X_low >= new_X_high || new_Y_low < 0
+ || new_Y_low >= new_Y_high)
+ return -EINVAL;
+ instance_data->sensors[0].axis_align.clip_X_low = new_X_low;
+ instance_data->sensors[0].axis_align.clip_X_high = new_X_high;
+ instance_data->sensors[0].axis_align.clip_Y_low = new_Y_low;
+ instance_data->sensors[0].axis_align.clip_Y_high = new_Y_high;
+
+ /*
+ ** for now, we assume this is sensor index 0
+ */
+ f11_set_abs_params(fc, 0);
+
+ return count;
+}
+
+static ssize_t f11_rezero_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct rmi_function_container *fc = NULL;
+ unsigned int rezero;
+ int retval = 0;
+ /* Command register always reads as 0, so we can just use a local. */
+ union f11_2d_commands commands = {};
+
+ fc = to_rmi_function_container(dev);
+
+ if (sscanf(buf, "%u", &rezero) != 1)
+ return -EINVAL;
+ if (rezero < 0 || rezero > 1)
+ return -EINVAL;
+
+ /* Per spec, 0 has no effect, so we skip it entirely. */
+ if (rezero) {
+ commands.rezero = 1;
+ retval = rmi_write_block(fc->rmi_dev, fc->fd.command_base_addr,
+ &commands.reg, sizeof(commands.reg));
+ if (retval < 0) {
+ dev_err(dev, "%s: failed to issue rezero command, "
+ "error = %d.", __func__, retval);
+ return retval;
+ }
+ }
+
+ return count;
+}
+
+#if RESUME_REZERO
+static ssize_t f11_rezeroOnResume_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct rmi_function_container *fc = NULL;
+ unsigned int newValue;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ if (sscanf(buf, "%u", &newValue) != 1)
+ return -EINVAL;
+ if (newValue < 0 || newValue > 1) {
+ dev_err(dev, "rezeroOnResume must be either 1 or 0.\n");
+ return -EINVAL;
+ }
+
+ instance_data->rezero_on_resume = (newValue != 0);
+
+ return count;
+}
+
+static ssize_t f11_rezeroOnResume_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ instance_data->rezero_on_resume);
+}
+
+static ssize_t f11_rezeroWait_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct rmi_function_container *fc = NULL;
+ unsigned int newValue;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ if (sscanf(buf, "%u", &newValue) != 1)
+ return -EINVAL;
+ if (newValue < 0) {
+ dev_err(dev, "rezeroWait must be 0 or greater.\n");
+ return -EINVAL;
+ }
+
+ instance_data->rezero_wait_ms = (newValue != 0);
+
+ return count;
+}
+
+static ssize_t f11_rezeroWait_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rmi_function_container *fc;
+ struct f11_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ instance_data->rezero_wait_ms);
+}
+#endif
+
+module_init(rmi_f11_module_init);
+module_exit(rmi_f11_module_exit);
+
+MODULE_AUTHOR("Christopher Heiny <cheiny@xxxxxxxxxxxxx");
+MODULE_DESCRIPTION("RMI F11 module");
+MODULE_LICENSE("GPL");
+
--
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