[RFC PATCH 17/17] input: RMI4 F54 analog data reporting
From: Christopher Heiny
Date: Fri Aug 17 2012 - 19:23:21 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>
Acked-by: Jean Delvare <khali@xxxxxxxxxxxx>
---
drivers/input/rmi4/rmi_f54.c | 2247 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 2247 insertions(+), 0 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c
new file mode 100644
index 0000000..9c19799
--- /dev/null
+++ b/drivers/input/rmi4/rmi_f54.c
@@ -0,0 +1,2247 @@
+/*
+ * Copyright (c) 2011-2012 Synaptics Incorporated
+ *
+ * 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/hrtimer.h>
+#include <linux/kernel.h>
+#include <linux/rmi.h>
+#include <linux/slab.h>
+#include <linux/version.h>
+#include <linux/delay.h>
+
+#define FUNCTION_DATA rmi_fn_54_data
+#define FNUM 54
+
+#include "rmi_driver.h"
+
+/* Set this to 1 for raw hex dump of returned data. */
+#define RAW_HEX 0
+/* Set this to 1 for human readable dump of returned data. */
+#define HUMAN_READABLE 0
+/* The watchdog timer can be useful when debugging certain firmware related
+ * issues.
+ */
+#define F54_WATCHDOG 1
+
+/* define fn $54 commands */
+#define GET_REPORT 1
+#define FORCE_CAL 2
+
+#define NO_AUTO_CAL_MASK 1
+/* status */
+#define BUSY 1
+#define IDLE 0
+
+/* Offsets for data */
+#define RMI_F54_REPORT_DATA_OFFSET 3
+#define RMI_F54_FIFO_OFFSET 1
+#define RMI_F54_NUM_TX_OFFSET 1
+#define RMI_F54_NUM_RX_OFFSET 0
+
+/* Fixed sizes of reports */
+#define RMI_54_FULL_RAW_CAP_MIN_MAX_SIZE 4
+#define RMI_54_HIGH_RESISTANCE_SIZE 6
+
+/* definitions for F54 Query Registers */
+union f54_ad_query {
+ struct {
+ /* query 0 */
+ u8 num_of_rx_electrodes;
+
+ /* query 1 */
+ u8 num_of_tx_electrodes;
+
+ /* query2 */
+ u8 f54_ad_query2_b0__1:2;
+ u8 has_baseline:1;
+ u8 has_image8:1;
+ u8 f54_ad_query2_b4__5:2;
+ u8 has_image16:1;
+ u8 f54_ad_query2_b7:1;
+
+ /* query 3.0 and 3.1 */
+ u16 clock_rate;
+
+ /* query 4 */
+ u8 touch_controller_family;
+
+ /* query 5 */
+ u8 has_pixel_touch_threshold_adjustment:1;
+ u8 f54_ad_query5_b1__7:7;
+
+ /* query 6 */
+ u8 has_sensor_assignment:1;
+ u8 has_interference_metric:1;
+ u8 has_sense_frequency_control:1;
+ u8 has_firmware_noise_mitigation:1;
+ u8 f54_ad_query6_b4:1;
+ u8 has_two_byte_report_rate:1;
+ u8 has_one_byte_report_rate:1;
+ u8 has_relaxation_control:1;
+
+ /* query 7 */
+ u8 curve_compensation_mode:2;
+ u8 f54_ad_query7_b2__7:6;
+
+ /* query 8 */
+ u8 f54_ad_query2_b0:1;
+ u8 has_iir_filter:1;
+ u8 has_cmn_removal:1;
+ u8 has_cmn_maximum:1;
+ u8 has_touch_hysteresis:1;
+ u8 has_edge_compensation:1;
+ u8 has_per_frequency_noise_control:1;
+ u8 f54_ad_query8_b7:1;
+
+ u8 f54_ad_query9;
+ u8 f54_ad_query10;
+
+ /* query 11 */
+ u8 f54_ad_query11_b0__6:7;
+ u8 has_query_15:1;
+
+ /* query 12 */
+ u8 number_of_sensing_frequencies:4;
+ u8 f54_ad_query12_b4__7:4;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[14];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+/* And now for the very large amount of control registers */
+
+/* Ctrl registers */
+
+union f54_ad_control_0 {
+ /* control 0 */
+ struct {
+ u8 no_relax:1;
+ u8 no_scan:1;
+ u8 f54_ad_ctrl0_b2__7:6;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_1 {
+ /* control 1 */
+ struct {
+ /* control 1 */
+ u8 bursts_per_cluster:4;
+ u8 f54_ad_ctrl1_b4__7:4;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_2 {
+ /* control 2 */
+ struct {
+ u16 saturation_cap;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[2];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_3 {
+ /* control 3 */
+ struct {
+ u16 pixel_touch_threshold;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[2];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_4__6 {
+ struct {
+ /* control 4 */
+ u8 rx_feedback_cap:2;
+ u8 f54_ad_ctrl4_b2__7:6;
+
+ /* control 5 */
+ u8 low_ref_cap:2;
+ u8 low_ref_feedback_cap:2;
+ u8 low_ref_polarity:1;
+ u8 f54_ad_ctrl5_b5__7:3;
+
+ /* control 6 */
+ u8 high_ref_cap:2;
+ u8 high_ref_feedback_cap:2;
+ u8 high_ref_polarity:1;
+ u8 f54_ad_ctrl6_b5__7:3;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[3];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_7 {
+ struct {
+ /* control 7 */
+ u8 cbc_cap:2;
+ u8 cbc_polarity:2;
+ u8 cbc_tx_carrier_selection:1;
+ u8 f54_ad_ctrl6_b5__7:3;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_8__9 {
+ struct {
+ /* control 8 */
+ u16 integration_duration:10;
+ u16 f54_ad_ctrl8_b10__15:6;
+ /* control 9 */
+ u8 reset_duration;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[3];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_10 {
+ struct {
+ /* control 10 */
+ u8 noise_sensing_bursts_per_image:4;
+ u8 f54_ad_ctrl10_b4__7:4;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_11 {
+ struct {
+ /* control 11 */
+ u8 reserved;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_12__13 {
+ struct {
+ /* control 12 */
+ u8 slow_relaxation_rate;
+
+ /* control 13 */
+ u8 fast_relaxation_rate;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[2];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_14 {
+ struct {
+ /* control 14 */
+ u8 rxs_on_xaxis:1;
+ u8 curve_comp_on_txs:1;
+ u8 f54_ad_ctrl14b2__7:6;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+struct f54_ad_control_15n {
+ /*Control 15.* */
+ u8 sensor_rx_assignment;
+};
+
+struct f54_ad_control_15 {
+ struct f54_ad_control_15n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_16n {
+ /*Control 16.* */
+ u8 sensor_tx_assignment;
+};
+
+struct f54_ad_control_16 {
+ struct f54_ad_control_16n *regs;
+ u16 address;
+ u8 length;
+};
+
+
+/* control 17 */
+struct f54_ad_control_17n {
+ u8 burst_countb10__8:3;
+ u8 disable:1;
+ u8 f54_ad_ctrlb4:1;
+ u8 filter_bandwidth:3;
+};
+
+struct f54_ad_control_17 {
+ struct f54_ad_control_17n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_18n {
+ /*Control 18.* */
+ u8 burst_countb7__0n;
+};
+
+struct f54_ad_control_18 {
+ struct f54_ad_control_18n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_19n {
+ /*Control 19.* */
+ u8 stretch_duration;
+};
+
+struct f54_ad_control_19 {
+ struct f54_ad_control_19n *regs;
+ u16 address;
+ u8 length;
+};
+
+union f54_ad_control_20 {
+ struct {
+ /* control 20 */
+ u8 disable_noise_mitigation:1;
+ u8 f54_ad_ctrl20b2__7:7;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_21 {
+ struct {
+ /* control 21 */
+ u16 freq_shift_noise_threshold;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[2];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_22__26 {
+ struct {
+ /* control 22 */
+ /* u8 noise_density_threshold; */
+ u8 f54_ad_ctrl22;
+
+ /* control 23 */
+ u16 medium_noise_threshold;
+
+ /* control 24 */
+ u16 high_noise_threshold;
+
+ /* control 25 */
+ u8 noise_density;
+
+ /* control 26 */
+ u8 frame_count;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[7];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_27 {
+ struct {
+ /* control 27 */
+ u8 iir_filter_coef;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_28 {
+ struct {
+ /* control 28 */
+ u16 quiet_threshold;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[2];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+
+union f54_ad_control_29 {
+ struct {
+ /* control 29 */
+ u8 f54_ad_ctrl20b0__6:7;
+ u8 cmn_filter_disable:1;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_30 {
+ struct {
+ /* control 30 */
+ u8 cmn_filter_max;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_31 {
+ struct {
+ /* control 31 */
+ u8 touch_hysteresis;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[1];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+union f54_ad_control_32__35 {
+ struct {
+ /* control 32 */
+ u16 rx_low_edge_comp;
+
+ /* control 33 */
+ u16 rx_high_edge_comp;
+
+ /* control 34 */
+ u16 tx_low_edge_comp;
+
+ /* control 35 */
+ u16 tx_high_edge_comp;
+ } __attribute__((__packed__));
+ struct {
+ u8 regs[8];
+ u16 address;
+ } __attribute__((__packed__));
+};
+
+struct f54_ad_control_36n {
+ /*Control 36.* */
+ u8 axis1_comp;
+};
+
+struct f54_ad_control_36 {
+ struct f54_ad_control_36n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_37n {
+ /*Control 37.* */
+ u8 axis2_comp;
+};
+
+struct f54_ad_control_37 {
+ struct f54_ad_control_37n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_38n {
+ /*Control 38.* */
+ u8 noise_control_1;
+};
+
+struct f54_ad_control_38 {
+ struct f54_ad_control_38n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_39n {
+ /*Control 39.* */
+ u8 noise_control_2;
+};
+
+struct f54_ad_control_39 {
+ struct f54_ad_control_39n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control_40n {
+ /*Control 40.* */
+ u8 noise_control_3;
+};
+
+struct f54_ad_control_40 {
+ struct f54_ad_control_40n *regs;
+ u16 address;
+ u8 length;
+};
+
+struct f54_ad_control {
+ union f54_ad_control_0 *reg_0;
+ union f54_ad_control_1 *reg_1;
+ union f54_ad_control_2 *reg_2;
+ union f54_ad_control_3 *reg_3;
+ union f54_ad_control_4__6 *reg_4__6;
+ union f54_ad_control_7 *reg_7;
+ union f54_ad_control_8__9 *reg_8__9;
+ union f54_ad_control_10 *reg_10;
+ union f54_ad_control_11 *reg_11;
+ union f54_ad_control_12__13 *reg_12__13;
+ union f54_ad_control_14 *reg_14;
+ /* control 15 */
+ struct f54_ad_control_15 *reg_15;
+ /* control 16 */
+ struct f54_ad_control_16 *reg_16;
+
+ /* This register is n repetitions of f54_ad_control_17 */
+ struct f54_ad_control_17 *reg_17;
+
+ /* control 18 */
+ struct f54_ad_control_18 *reg_18;
+
+ /* control 19 */
+ struct f54_ad_control_19 *reg_19;
+
+ union f54_ad_control_20 *reg_20;
+ union f54_ad_control_21 *reg_21;
+ union f54_ad_control_22__26 *reg_22__26;
+ union f54_ad_control_27 *reg_27;
+ union f54_ad_control_28 *reg_28;
+ union f54_ad_control_29 *reg_29;
+ union f54_ad_control_30 *reg_30;
+ union f54_ad_control_31 *reg_31;
+ union f54_ad_control_32__35 *reg_32__35;
+ /* control 36 */
+ struct f54_ad_control_36 *reg_36;
+
+ /* control 37 */
+ struct f54_ad_control_37 *reg_37;
+
+ /* control 38 */
+ struct f54_ad_control_38 *reg_38;
+
+ /* control 39 */
+ struct f54_ad_control_39 *reg_39;
+
+ /* control 40 */
+ struct f54_ad_control_40 *reg_40;
+};
+
+/* define report types */
+enum f54_report_types {
+ F54_8BIT_IMAGE = 1,
+ F54_16BIT_IMAGE = 2,
+ F54_RAW_16BIT_IMAGE = 3,
+ F54_HIGH_RESISTANCE = 4,
+ F54_TX_TO_TX_SHORT = 5,
+ F54_RX_TO_RX1 = 7,
+ F54_TRUE_BASELINE = 9,
+ F54_FULL_RAW_CAP_MIN_MAX = 13,
+ F54_RX_OPENS1 = 14,
+ F54_TX_OPEN = 15,
+ F54_TX_TO_GROUND = 16,
+ F54_RX_TO_RX2 = 17,
+ F54_RX_OPENS2 = 18,
+ F54_FULL_RAW_CAP = 19,
+ F54_FULL_RAW_CAP_RX_COUPLING_COMP = 20
+};
+
+/* sysfs functions */
+show_store_union_struct_prototype(report_type)
+
+store_union_struct_prototype(get_report)
+
+store_union_struct_prototype(force_cal)
+
+show_union_struct_prototype(status)
+
+static ssize_t rmi_fn_54_data_read(struct file *data_file, struct kobject *kobj,
+ struct bin_attribute *attributes,
+ char *buf, loff_t pos, size_t count);
+
+show_union_struct_prototype(num_of_rx_electrodes)
+show_union_struct_prototype(num_of_tx_electrodes)
+show_union_struct_prototype(has_image16)
+show_union_struct_prototype(has_image8)
+show_union_struct_prototype(has_baseline)
+show_union_struct_prototype(clock_rate)
+show_union_struct_prototype(touch_controller_family)
+show_union_struct_prototype(has_pixel_touch_threshold_adjustment)
+show_union_struct_prototype(has_sensor_assignment)
+show_union_struct_prototype(has_interference_metric)
+show_union_struct_prototype(has_sense_frequency_control)
+show_union_struct_prototype(has_firmware_noise_mitigation)
+show_union_struct_prototype(has_two_byte_report_rate)
+show_union_struct_prototype(has_one_byte_report_rate)
+show_union_struct_prototype(has_relaxation_control)
+show_union_struct_prototype(curve_compensation_mode)
+show_union_struct_prototype(has_iir_filter)
+show_union_struct_prototype(has_cmn_removal)
+show_union_struct_prototype(has_cmn_maximum)
+show_union_struct_prototype(has_touch_hysteresis)
+show_union_struct_prototype(has_edge_compensation)
+show_union_struct_prototype(has_per_frequency_noise_control)
+show_union_struct_prototype(number_of_sensing_frequencies)
+show_store_union_struct_prototype(no_auto_cal)
+show_store_union_struct_prototype(fifoindex)
+
+/* Repeated Control Registers */
+show_union_struct_prototype(sensor_rx_assignment)
+show_union_struct_prototype(sensor_tx_assignment)
+show_union_struct_prototype(filter_bandwidth)
+show_union_struct_prototype(disable)
+show_union_struct_prototype(burst_count)
+show_union_struct_prototype(stretch_duration)
+show_store_union_struct_prototype(axis1_comp)
+show_store_union_struct_prototype(axis2_comp)
+show_union_struct_prototype(noise_control_1)
+show_union_struct_prototype(noise_control_2)
+show_union_struct_prototype(noise_control_3)
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+show_store_union_struct_prototype(no_relax)
+show_store_union_struct_prototype(no_scan)
+show_store_union_struct_prototype(bursts_per_cluster)
+show_store_union_struct_prototype(saturation_cap)
+show_store_union_struct_prototype(pixel_touch_threshold)
+show_store_union_struct_prototype(rx_feedback_cap)
+show_store_union_struct_prototype(low_ref_cap)
+show_store_union_struct_prototype(low_ref_feedback_cap)
+show_store_union_struct_prototype(low_ref_polarity)
+show_store_union_struct_prototype(high_ref_cap)
+show_store_union_struct_prototype(high_ref_feedback_cap)
+show_store_union_struct_prototype(high_ref_polarity)
+show_store_union_struct_prototype(cbc_cap)
+show_store_union_struct_prototype(cbc_polarity)
+show_store_union_struct_prototype(cbc_tx_carrier_selection)
+show_store_union_struct_prototype(integration_duration)
+show_store_union_struct_prototype(reset_duration)
+show_store_union_struct_prototype(noise_sensing_bursts_per_image)
+show_store_union_struct_prototype(slow_relaxation_rate)
+show_store_union_struct_prototype(fast_relaxation_rate)
+show_store_union_struct_prototype(rxs_on_xaxis)
+show_store_union_struct_prototype(curve_comp_on_txs)
+show_store_union_struct_prototype(disable_noise_mitigation)
+show_store_union_struct_prototype(freq_shift_noise_threshold)
+/*show_store_union_struct_prototype(noise_density_threshold)*/
+show_store_union_struct_prototype(medium_noise_threshold)
+show_store_union_struct_prototype(high_noise_threshold)
+show_store_union_struct_prototype(noise_density)
+show_store_union_struct_prototype(frame_count)
+show_store_union_struct_prototype(iir_filter_coef)
+show_store_union_struct_prototype(quiet_threshold)
+show_store_union_struct_prototype(cmn_filter_disable)
+show_store_union_struct_prototype(cmn_filter_max)
+show_store_union_struct_prototype(touch_hysteresis)
+show_store_union_struct_prototype(rx_low_edge_comp)
+show_store_union_struct_prototype(rx_high_edge_comp)
+show_store_union_struct_prototype(tx_low_edge_comp)
+show_store_union_struct_prototype(tx_high_edge_comp)
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+static struct attribute *attrs[] = {
+ attrify(report_type),
+ attrify(get_report),
+ attrify(force_cal),
+ attrify(status),
+ attrify(num_of_rx_electrodes),
+ attrify(num_of_tx_electrodes),
+ attrify(has_image16),
+ attrify(has_image8),
+ attrify(has_baseline),
+ attrify(clock_rate),
+ attrify(touch_controller_family),
+ attrify(has_pixel_touch_threshold_adjustment),
+ attrify(has_sensor_assignment),
+ attrify(has_interference_metric),
+ attrify(has_sense_frequency_control),
+ attrify(has_firmware_noise_mitigation),
+ attrify(has_two_byte_report_rate),
+ attrify(has_one_byte_report_rate),
+ attrify(has_relaxation_control),
+ attrify(curve_compensation_mode),
+ attrify(has_iir_filter),
+ attrify(has_cmn_removal),
+ attrify(has_cmn_maximum),
+ attrify(has_touch_hysteresis),
+ attrify(has_edge_compensation),
+ attrify(has_per_frequency_noise_control),
+ attrify(number_of_sensing_frequencies),
+ attrify(no_auto_cal),
+ attrify(fifoindex),
+ NULL
+};
+
+static struct attribute_group attrs_query = GROUP(attrs);
+
+struct bin_attribute dev_rep_data = {
+ .attr = {
+ .name = "rep_data",
+ .mode = RMI_RO_ATTR},
+ .size = 0,
+ .read = rmi_fn_54_data_read,
+};
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+static struct attribute *attrs_reg_0[] = {
+ attrify(no_relax),
+ attrify(no_scan),
+ NULL
+};
+
+static struct attribute *attrs_reg_1[] = {
+ attrify(bursts_per_cluster),
+ NULL
+};
+
+static struct attribute *attrs_reg_2[] = {
+ attrify(saturation_cap),
+ NULL
+};
+
+static struct attribute *attrs_reg_3[] = {
+ attrify(pixel_touch_threshold),
+ NULL
+};
+
+static struct attribute *attrs_reg_4__6[] = {
+ attrify(rx_feedback_cap),
+ attrify(low_ref_cap),
+ attrify(low_ref_feedback_cap),
+ attrify(low_ref_polarity),
+ attrify(high_ref_cap),
+ attrify(high_ref_feedback_cap),
+ attrify(high_ref_polarity),
+ NULL
+};
+
+static struct attribute *attrs_reg_7[] = {
+ attrify(cbc_cap),
+ attrify(cbc_polarity),
+ attrify(cbc_tx_carrier_selection),
+ NULL
+};
+
+static struct attribute *attrs_reg_8__9[] = {
+ attrify(integration_duration),
+ attrify(reset_duration),
+ NULL
+};
+
+static struct attribute *attrs_reg_10[] = {
+ attrify(noise_sensing_bursts_per_image),
+ NULL
+};
+
+static struct attribute *attrs_reg_12__13[] = {
+ attrify(slow_relaxation_rate),
+ attrify(fast_relaxation_rate),
+ NULL
+};
+
+static struct attribute *attrs_reg_14__16[] = {
+ attrify(rxs_on_xaxis),
+ attrify(curve_comp_on_txs),
+ attrify(sensor_rx_assignment),
+ attrify(sensor_tx_assignment),
+ NULL
+};
+
+static struct attribute *attrs_reg_17__19[] = {
+ attrify(filter_bandwidth),
+ attrify(disable),
+ attrify(burst_count),
+ attrify(stretch_duration),
+ NULL
+};
+
+static struct attribute *attrs_reg_20[] = {
+ attrify(disable_noise_mitigation),
+ NULL
+};
+
+static struct attribute *attrs_reg_21[] = {
+ attrify(freq_shift_noise_threshold),
+ NULL
+};
+
+static struct attribute *attrs_reg_22__26[] = {
+ /*attrify(noise_density_threshold),*/
+ attrify(medium_noise_threshold),
+ attrify(high_noise_threshold),
+ attrify(noise_density),
+ attrify(frame_count),
+ NULL
+};
+
+static struct attribute *attrs_reg_27[] = {
+ attrify(iir_filter_coef),
+ NULL
+};
+
+static struct attribute *attrs_reg_28[] = {
+ attrify(quiet_threshold),
+ NULL
+};
+
+static struct attribute *attrs_reg_29[] = {
+ attrify(cmn_filter_disable),
+ NULL
+};
+
+static struct attribute *attrs_reg_30[] = {
+ attrify(cmn_filter_max),
+ NULL
+};
+
+static struct attribute *attrs_reg_31[] = {
+ attrify(touch_hysteresis),
+ NULL
+};
+
+static struct attribute *attrs_reg_32__35[] = {
+ attrify(rx_low_edge_comp),
+ attrify(rx_high_edge_comp),
+ attrify(tx_low_edge_comp),
+ attrify(tx_high_edge_comp),
+ NULL
+};
+
+static struct attribute *attrs_reg_36[] = {
+ attrify(axis1_comp),
+ NULL
+};
+
+static struct attribute *attrs_reg_37[] = {
+ attrify(axis2_comp),
+ NULL
+};
+
+static struct attribute *attrs_reg_38__40[] = {
+ attrify(noise_control_1),
+ attrify(noise_control_2),
+ attrify(noise_control_3),
+ NULL
+};
+
+static struct attribute_group attrs_ctrl_regs[] = {
+ GROUP(attrs_reg_0),
+ GROUP(attrs_reg_1),
+ GROUP(attrs_reg_2),
+ GROUP(attrs_reg_3),
+ GROUP(attrs_reg_4__6),
+ GROUP(attrs_reg_7),
+ GROUP(attrs_reg_8__9),
+ GROUP(attrs_reg_10),
+ GROUP(attrs_reg_12__13),
+ GROUP(attrs_reg_14__16),
+ GROUP(attrs_reg_17__19),
+ GROUP(attrs_reg_20),
+ GROUP(attrs_reg_21),
+ GROUP(attrs_reg_22__26),
+ GROUP(attrs_reg_27),
+ GROUP(attrs_reg_28),
+ GROUP(attrs_reg_29),
+ GROUP(attrs_reg_30),
+ GROUP(attrs_reg_31),
+ GROUP(attrs_reg_32__35),
+ GROUP(attrs_reg_36),
+ GROUP(attrs_reg_37),
+ GROUP(attrs_reg_38__40)
+};
+
+/* data specific to fn $54 that needs to be kept around */
+struct rmi_fn_54_data {
+ union f54_ad_query query;
+ struct f54_ad_control control;
+ bool attrs_ctrl_regs_exist[ARRAY_SIZE(attrs_ctrl_regs)];
+ enum f54_report_types report_type;
+ u16 fifoindex;
+ signed char status;
+ bool no_auto_cal;
+ unsigned int report_size;
+ unsigned char *report_data;
+ unsigned int bufsize;
+ struct mutex data_mutex;
+ struct mutex status_mutex;
+ struct mutex control_mutex;
+#if F54_WATCHDOG
+ struct hrtimer watchdog;
+#endif
+ struct rmi_function_container *fc;
+ struct work_struct work;
+};
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+#if F54_WATCHDOG
+static enum hrtimer_restart clear_status(struct hrtimer *timer);
+
+static void clear_status_worker(struct work_struct *work);
+#endif
+
+static int rmi_f54_alloc_memory(struct rmi_function_container *fc);
+
+static void rmi_f54_free_memory(struct rmi_function_container *fc);
+
+static int rmi_f54_initialize(struct rmi_function_container *fc);
+
+static int rmi_f54_reset(struct rmi_function_container *fc);
+
+static int rmi_f54_create_sysfs(struct rmi_function_container *fc);
+
+static int rmi_f54_init(struct rmi_function_container *fc)
+{
+ int retval = 0;
+ struct rmi_fn_54_data *f54;
+
+ retval = rmi_f54_alloc_memory(fc);
+ if (retval < 0)
+ goto error_exit;
+
+ retval = rmi_f54_initialize(fc);
+ if (retval < 0)
+ goto error_exit;
+
+ retval = rmi_f54_create_sysfs(fc);
+ if (retval < 0)
+ goto error_exit;
+ f54 = fc->data;
+ f54->status = IDLE;
+ return retval;
+
+error_exit:
+ rmi_f54_free_memory(fc);
+
+ return retval;
+}
+
+static int rmi_f54_alloc_memory(struct rmi_function_container *fc)
+{
+ struct rmi_fn_54_data *f54;
+
+ f54 = kzalloc(sizeof(struct rmi_fn_54_data), GFP_KERNEL);
+ if (!f54) {
+ dev_err(&fc->dev, "Failed to allocate rmi_fn_54_data.\n");
+ return -ENOMEM;
+ }
+ fc->data = f54;
+ f54->fc = fc;
+
+
+ return 0;
+}
+
+static void rmi_f54_free_memory(struct rmi_function_container *fc)
+{
+ int reg_num;
+ struct rmi_fn_54_data *f54 = fc->data;
+ sysfs_remove_group(&fc->dev.kobj, &attrs_query);
+ for (reg_num = 0; reg_num < ARRAY_SIZE(attrs_ctrl_regs); reg_num++)
+ sysfs_remove_group(&fc->dev.kobj, &attrs_ctrl_regs[reg_num]);
+ sysfs_remove_bin_file(&fc->dev.kobj, &dev_rep_data);
+ if (f54) {
+ kfree(f54->report_data);
+ kfree(f54);
+ fc->data = NULL;
+ }
+}
+
+static int rmi_f54_reset(struct rmi_function_container *fc)
+{
+ struct rmi_fn_54_data *data = fc->data;
+ struct rmi_driver *driver = fc->rmi_dev->driver;
+
+#if F54_WATCHDOG
+ hrtimer_cancel(&data->watchdog);
+#endif
+
+ mutex_lock(&data->status_mutex);
+ if (driver->restore_irq_mask) {
+ dev_dbg(&fc->dev, "Restoring interupts!\n");
+ driver->restore_irq_mask(fc->rmi_dev);
+ } else {
+ dev_err(&fc->dev, "No way to restore interrupts!\n");
+ }
+ data->status = -ECONNRESET;
+ mutex_unlock(&data->status_mutex);
+
+ return 0;
+}
+
+static void rmi_f54_remove(struct rmi_function_container *fc)
+{
+ struct rmi_fn_54_data *data = fc->data;
+
+ dev_info(&fc->dev, "Removing F54.");
+
+ #if F54_WATCHDOG
+ /* Stop timer */
+ hrtimer_cancel(&data->watchdog);
+ #endif
+
+ rmi_f54_free_memory(fc);
+}
+
+static int rmi_f54_create_sysfs(struct rmi_function_container *fc)
+{
+ int reg_num;
+ int retval;
+ struct rmi_fn_54_data *f54 = fc->data;
+ dev_dbg(&fc->dev, "Creating sysfs files.");
+ /* Set up sysfs device attributes. */
+
+ if (sysfs_create_group(&fc->dev.kobj, &attrs_query) < 0) {
+ dev_err(&fc->dev, "Failed to create query sysfs files.");
+ return -ENODEV;
+ }
+ for (reg_num = 0; reg_num < ARRAY_SIZE(attrs_ctrl_regs); reg_num++) {
+ if (f54->attrs_ctrl_regs_exist[reg_num]) {
+ retval = sysfs_create_group(&fc->dev.kobj,
+ &attrs_ctrl_regs[reg_num]);
+ if (retval < 0) {
+ dev_err(&fc->dev, "Failed to create sysfs file group for reg group %d, error = %d.",
+ reg_num, retval);
+ return -ENODEV;
+ }
+ }
+ }
+
+ /* Binary sysfs file to report the data back */
+ retval = sysfs_create_bin_file(&fc->dev.kobj, &dev_rep_data);
+ if (retval < 0) {
+ dev_err(&fc->dev, "Failed to create sysfs file for F54 data (error = %d).\n",
+ retval);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+
+
+static int rmi_f54_initialize(struct rmi_function_container *fc)
+{
+ struct rmi_fn_54_data *f54 = fc->data;
+ struct f54_ad_control *control;
+ int retval = 0;
+ u8 size = 0;
+ u16 next_loc;
+ u8 reg_num;
+
+#if F54_WATCHDOG
+ /* Set up watchdog timer to catch unanswered get_report commands */
+ hrtimer_init(&f54->watchdog, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ f54->watchdog.function = clear_status;
+
+ /* work function to do unlocking */
+ INIT_WORK(&f54->work, clear_status_worker);
+#endif
+
+ /* Read F54 Query Data */
+ retval = rmi_read_block(fc->rmi_dev, fc->fd.query_base_addr,
+ (u8 *)&f54->query, sizeof(f54->query));
+ if (retval < 0) {
+ dev_err(&fc->dev, "Could not read query registers from 0x%04x\n",
+ fc->fd.query_base_addr);
+ return retval;
+ }
+
+ /* Initialize the control registers */
+ next_loc = fc->fd.control_base_addr;
+ reg_num = 0;
+ control = &f54->control;
+
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ reg_num++;
+ control->reg_0 = kzalloc(sizeof(union f54_ad_control_0), GFP_KERNEL);
+ if (!control->reg_0) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_0->address = next_loc;
+ next_loc += sizeof(control->reg_0->regs);
+
+ if (f54->query.touch_controller_family == 0
+ || f54->query.touch_controller_family == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_1 = kzalloc(sizeof(union f54_ad_control_1),
+ GFP_KERNEL);
+ if (!control->reg_1) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_1->address = next_loc;
+ next_loc += sizeof(control->reg_1->regs);
+ }
+ reg_num++;
+
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ reg_num++;
+ control->reg_2 = kzalloc(sizeof(union f54_ad_control_2), GFP_KERNEL);
+ if (!control->reg_2) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_2->address = next_loc;
+ next_loc += sizeof(control->reg_2->regs);
+
+ if (f54->query.has_pixel_touch_threshold_adjustment == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+
+ control->reg_3 = kzalloc(sizeof(union f54_ad_control_3),
+ GFP_KERNEL);
+ if (!control->reg_3) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_3->address = next_loc;
+ next_loc += sizeof(control->reg_3->regs);
+ }
+ reg_num++;
+
+ if (f54->query.touch_controller_family == 0
+ || f54->query.touch_controller_family == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_4__6 = kzalloc(sizeof(union f54_ad_control_4__6),
+ GFP_KERNEL);
+ if (!control->reg_4__6) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_4__6->address = next_loc;
+ next_loc += sizeof(control->reg_4__6->regs);
+ }
+ reg_num++;
+
+ if (f54->query.touch_controller_family == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_7 = kzalloc(sizeof(union f54_ad_control_7),
+ GFP_KERNEL);
+ if (!control->reg_7) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_7->address = next_loc;
+ next_loc += sizeof(control->reg_7->regs);
+ }
+ reg_num++;
+
+ if (f54->query.touch_controller_family == 0
+ || f54->query.touch_controller_family == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_8__9 = kzalloc(sizeof(union f54_ad_control_8__9),
+ GFP_KERNEL);
+ if (!control->reg_8__9) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_8__9->address = next_loc;
+ next_loc += sizeof(control->reg_8__9->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_interference_metric == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_10 = kzalloc(sizeof(union f54_ad_control_10),
+ GFP_KERNEL);
+ if (!control->reg_10) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_10->address = next_loc;
+ next_loc += sizeof(control->reg_10->regs);
+ }
+ reg_num++;
+
+ /* F54 Control Register 11 is reserved */
+ next_loc++;
+
+ if (f54->query.has_relaxation_control == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_12__13 = kzalloc(
+ sizeof(union f54_ad_control_12__13), GFP_KERNEL);
+ if (!control->reg_12__13) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_12__13->address = next_loc;
+ next_loc += sizeof(control->reg_12__13->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_sensor_assignment == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_14 = kzalloc(sizeof(union f54_ad_control_14),
+ GFP_KERNEL);
+ if (!control->reg_14) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_15 =
+ kzalloc(sizeof(struct f54_ad_control_15), GFP_KERNEL);
+ if (!control->reg_15) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_15->length = f54->query.num_of_rx_electrodes;
+ control->reg_15->regs =
+ kzalloc(control->reg_15->length *
+ sizeof(struct f54_ad_control_15n),
+ GFP_KERNEL);
+ if (!control->reg_15->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_16 =
+ kzalloc(sizeof(struct f54_ad_control_16), GFP_KERNEL);
+ if (!control->reg_16) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_16->length = f54->query.num_of_tx_electrodes;
+ control->reg_16->regs =
+ kzalloc(control->reg_16->length *
+ sizeof(struct f54_ad_control_16n),
+ GFP_KERNEL);
+ if (!control->reg_16->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_14->address = next_loc;
+ next_loc += sizeof(control->reg_14->regs);
+ control->reg_15->address = next_loc;
+ next_loc += control->reg_15->length;
+ control->reg_16->address = next_loc;
+ next_loc += control->reg_16->length;
+ }
+ reg_num++;
+
+ if (f54->query.has_sense_frequency_control == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ size = f54->query.number_of_sensing_frequencies;
+
+ control->reg_17 =
+ kzalloc(sizeof(struct f54_ad_control_17), GFP_KERNEL);
+ if (!control->reg_17) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_17->length = size;
+ control->reg_17->regs = kzalloc(size *
+ sizeof(struct f54_ad_control_17n), GFP_KERNEL);
+ if (!control->reg_17->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_18 =
+ kzalloc(sizeof(struct f54_ad_control_18), GFP_KERNEL);
+ if (!control->reg_18) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_18->length = size;
+ control->reg_18->regs = kzalloc(size *
+ sizeof(struct f54_ad_control_18n), GFP_KERNEL);
+ if (!control->reg_18->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_19 =
+ kzalloc(sizeof(struct f54_ad_control_19), GFP_KERNEL);
+ if (!control->reg_19) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_19->length = size;
+ control->reg_19->regs = kzalloc(size *
+ sizeof(struct f54_ad_control_19n), GFP_KERNEL);
+ if (!control->reg_19->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_17->address = next_loc;
+ next_loc += size;
+ control->reg_18->address = next_loc;
+ next_loc += size;
+ control->reg_19->address = next_loc;
+ next_loc += size;
+ }
+ reg_num++;
+
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_20 = kzalloc(sizeof(union f54_ad_control_20), GFP_KERNEL);
+ control->reg_20->address = next_loc;
+ next_loc += sizeof(control->reg_20->regs);
+ reg_num++;
+
+ if (f54->query.has_sense_frequency_control == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_21 = kzalloc(sizeof(union f54_ad_control_21),
+ GFP_KERNEL);
+ control->reg_21->address = next_loc;
+ next_loc += sizeof(control->reg_21->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_sense_frequency_control == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_22__26 = kzalloc(
+ sizeof(union f54_ad_control_22__26), GFP_KERNEL);
+ control->reg_22__26->address = next_loc;
+ next_loc += sizeof(control->reg_22__26->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_iir_filter == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_27 = kzalloc(sizeof(union f54_ad_control_27),
+ GFP_KERNEL);
+ control->reg_27->address = next_loc;
+ next_loc += sizeof(control->reg_27->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_firmware_noise_mitigation == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_28 = kzalloc(sizeof(union f54_ad_control_28),
+ GFP_KERNEL);
+ control->reg_28->address = next_loc;
+ next_loc += sizeof(control->reg_28->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_cmn_removal == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_29 = kzalloc(sizeof(union f54_ad_control_29),
+ GFP_KERNEL);
+ control->reg_29->address = next_loc;
+ next_loc += sizeof(control->reg_29->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_cmn_maximum == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_30 = kzalloc(sizeof(union f54_ad_control_30),
+ GFP_KERNEL);
+ control->reg_30->address = next_loc;
+ next_loc += sizeof(control->reg_30->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_touch_hysteresis == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_31 = kzalloc(sizeof(union f54_ad_control_31),
+ GFP_KERNEL);
+ control->reg_31->address = next_loc;
+ next_loc += sizeof(control->reg_31->regs);
+ }
+ reg_num++;
+
+ if (f54->query.has_interference_metric == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+ control->reg_32__35 = kzalloc(
+ sizeof(union f54_ad_control_32__35), GFP_KERNEL);
+ control->reg_32__35->address = next_loc;
+ next_loc += sizeof(control->reg_32__35->regs);
+ }
+ reg_num++;
+
+ if (f54->query.curve_compensation_mode == 1) {
+ size = max(f54->query.num_of_rx_electrodes,
+ f54->query.num_of_tx_electrodes);
+ }
+ if (f54->query.curve_compensation_mode == 2)
+ size = f54->query.num_of_rx_electrodes;
+ if (f54->query.curve_compensation_mode == 1
+ || f54->query.curve_compensation_mode == 2) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+
+ control->reg_36 =
+ kzalloc(sizeof(struct f54_ad_control_36), GFP_KERNEL);
+ if (!control->reg_36) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_36->length = size;
+ control->reg_36->regs =
+ kzalloc(size * sizeof(struct f54_ad_control_36n),
+ GFP_KERNEL);
+ if (!control->reg_36->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_36->address = next_loc;
+ next_loc += size;
+ }
+ reg_num++;
+
+ if (f54->query.curve_compensation_mode == 2) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+
+ control->reg_37 =
+ kzalloc(sizeof(struct f54_ad_control_37), GFP_KERNEL);
+ if (!control->reg_37) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_37->length = f54->query.num_of_tx_electrodes;
+ control->reg_37->regs = kzalloc(control->reg_37->length *
+ sizeof(struct f54_ad_control_37n),
+ GFP_KERNEL);
+ if (!control->reg_37->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_37->address = next_loc;
+ next_loc += control->reg_37->length;
+ }
+ reg_num++;
+
+ if (f54->query.has_per_frequency_noise_control == 1) {
+ f54->attrs_ctrl_regs_exist[reg_num] = true;
+
+ control->reg_38 =
+ kzalloc(sizeof(struct f54_ad_control_38), GFP_KERNEL);
+ if (!control->reg_38) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_38->length =
+ f54->query.number_of_sensing_frequencies;
+ control->reg_38->regs = kzalloc(control->reg_38->length *
+ sizeof(struct f54_ad_control_38n),
+ GFP_KERNEL);
+ if (!control->reg_38->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_39 =
+ kzalloc(sizeof(struct f54_ad_control_39), GFP_KERNEL);
+ if (!control->reg_39) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_39->length =
+ f54->query.number_of_sensing_frequencies;
+ control->reg_39->regs = kzalloc(control->reg_39->length *
+ sizeof(struct f54_ad_control_39n),
+ GFP_KERNEL);
+ if (!control->reg_39->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_40 =
+ kzalloc(sizeof(struct f54_ad_control_40), GFP_KERNEL);
+ if (!control->reg_40) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+ control->reg_40->length =
+ f54->query.number_of_sensing_frequencies;
+ control->reg_40->regs = kzalloc(control->reg_40->length *
+ sizeof(struct f54_ad_control_40n), GFP_KERNEL);
+ if (!control->reg_40->regs) {
+ dev_err(&fc->dev, "Failed to allocate control registers.");
+ return -ENOMEM;
+ }
+
+ control->reg_38->address = next_loc;
+ next_loc += control->reg_38->length;
+ control->reg_39->address = next_loc;
+ next_loc += control->reg_39->length;
+ control->reg_40->address = next_loc;
+ next_loc += control->reg_40->length;
+ }
+ reg_num++;
+
+ mutex_init(&f54->data_mutex);
+
+ mutex_init(&f54->status_mutex);
+
+ mutex_init(&f54->control_mutex);
+
+ return retval;
+}
+
+static void set_report_size(struct rmi_fn_54_data *data)
+{
+ u8 rx = data->query.num_of_rx_electrodes;
+ u8 tx = data->query.num_of_tx_electrodes;
+ switch (data->report_type) {
+ case F54_8BIT_IMAGE:
+ data->report_size = rx * tx;
+ break;
+ case F54_16BIT_IMAGE:
+ case F54_RAW_16BIT_IMAGE:
+ case F54_TRUE_BASELINE:
+ case F54_FULL_RAW_CAP:
+ case F54_FULL_RAW_CAP_RX_COUPLING_COMP:
+ data->report_size = 2 * rx * tx;
+ break;
+ case F54_HIGH_RESISTANCE:
+ data->report_size = RMI_54_HIGH_RESISTANCE_SIZE;
+ break;
+ case F54_FULL_RAW_CAP_MIN_MAX:
+ data->report_size = RMI_54_FULL_RAW_CAP_MIN_MAX_SIZE;
+ break;
+ case F54_TX_TO_TX_SHORT:
+ case F54_TX_OPEN:
+ case F54_TX_TO_GROUND:
+ data->report_size = (tx + 7) / 8;
+ break;
+ case F54_RX_TO_RX1:
+ case F54_RX_OPENS1:
+ if (rx < tx)
+ data->report_size = 2 * rx * rx;
+ else
+ data->report_size = 2 * rx * tx;
+ break;
+ case F54_RX_TO_RX2:
+ case F54_RX_OPENS2:
+ if (rx <= tx)
+ data->report_size = 0;
+ else
+ data->report_size = 2 * rx * (rx - tx);
+ break;
+ default:
+ data->report_size = 0;
+ }
+}
+
+int rmi_f54_attention(struct rmi_function_container *fc, u8 *irq_bits)
+{
+ struct rmi_driver *driver = fc->rmi_dev->driver;
+ char fifo[2];
+ struct rmi_fn_54_data *data = fc->data;
+ int error = 0;
+
+ set_report_size(data);
+ if (data->report_size == 0) {
+ dev_err(&fc->dev, "Invalid report type set in %s. "
+ "This should never happen.\n", __func__);
+ error = -EINVAL;
+ goto error_exit;
+ }
+ /*
+ * We need to ensure the buffer is big enough. A Buffer size of 0 means
+ * that the buffer has not been allocated.
+ */
+ if (data->bufsize < data->report_size) {
+ mutex_lock(&data->data_mutex);
+ if (data->bufsize > 0)
+ kfree(data->report_data);
+ data->report_data = kzalloc(data->report_size, GFP_KERNEL);
+ if (!data->report_data) {
+ dev_err(&fc->dev, "Failed to allocate report_data.\n");
+ error = -ENOMEM;
+ data->bufsize = 0;
+ mutex_unlock(&data->data_mutex);
+ goto error_exit;
+ }
+ data->bufsize = data->report_size;
+ mutex_unlock(&data->data_mutex);
+ }
+ dev_vdbg(&fc->dev, "F54 Interrupt handler is running.\nSize: %d\n",
+ data->report_size);
+ /* Write 0 to fifohi and fifolo. */
+ fifo[0] = 0;
+ fifo[1] = 0;
+ error = rmi_write_block(fc->rmi_dev, fc->fd.data_base_addr
+ + RMI_F54_FIFO_OFFSET, fifo, sizeof(fifo));
+ if (error < 0)
+ dev_err(&fc->dev, "Failed to write fifo to zero!\n");
+ else
+ error = rmi_read_block(fc->rmi_dev,
+ fc->fd.data_base_addr + RMI_F54_REPORT_DATA_OFFSET,
+ data->report_data, data->report_size);
+ if (error < 0)
+ dev_err(&fc->dev, "F54 data read failed. Code: %d.\n", error);
+ else if (error != data->report_size) {
+ error = -EINVAL;
+ goto error_exit;
+ }
+#if RAW_HEX
+ int l;
+ /* Debugging: Print out the file in hex. */
+ pr_info("Report data (raw hex):\n");
+ for (l = 0; l < data->report_size; l += 2) {
+ pr_info("%03d: 0x%02x%02x\n", l/2,
+ data->report_data[l+1], data->report_data[l]);
+ }
+#endif
+#if HUMAN_READABLE
+ /* Debugging: Print out file in human understandable image */
+ switch (data->report_type) {
+ case F54_16BIT_IMAGE:
+ case F54_RAW_16BIT_IMAGE:
+ case F54_TRUE_BASELINE:
+ case F54_FULL_RAW_CAP:
+ case F54_FULL_RAW_CAP_RX_COUPLING_COMP:
+ pr_info("Report data (Image):\n");
+ int i, j, k;
+ char c[2];
+ short s;
+ k = 0;
+ for (i = 0; i < data->query.num_of_tx_electrodes;
+ i++) {
+ for (j = 0; j <
+ data->query.num_of_rx_electrodes; j++) {
+ c[0] = data->report_data[k];
+ c[1] = data->report_data[k+1];
+ memcpy(&s, &c, 2);
+ if (s < -64)
+ printk(".");
+ else if (s < 0)
+ printk("-");
+ else if (s > 64)
+ printk("*");
+ else if (s > 0)
+ printk("+");
+ else
+ printk("0");
+ k += 2;
+ }
+ pr_info("\n");
+ }
+ pr_info("EOF\n");
+ break;
+ default:
+ pr_info("Report type %d debug image not supported",
+ data->report_type);
+ }
+#endif
+ error = IDLE;
+error_exit:
+ mutex_lock(&data->status_mutex);
+ /* Turn back on other interupts, if it
+ * appears that we turned them off. */
+ if (driver->restore_irq_mask) {
+ dev_dbg(&fc->dev, "Restoring interupts!\n");
+ driver->restore_irq_mask(fc->rmi_dev);
+ } else {
+ dev_err(&fc->dev, "No way to restore interrupts!\n");
+ }
+ data->status = error;
+ mutex_unlock(&data->status_mutex);
+ return data->status;
+}
+
+
+#if F54_WATCHDOG
+static void clear_status_worker(struct work_struct *work)
+{
+ struct rmi_fn_54_data *data = container_of(work,
+ struct rmi_fn_54_data, work);
+ struct rmi_function_container *fc = data->fc;
+ struct rmi_driver *driver = fc->rmi_dev->driver;
+ char command;
+ int result;
+
+ mutex_lock(&data->status_mutex);
+ if (data->status == BUSY) {
+ result = rmi_read_block(fc->rmi_dev, fc->fd.command_base_addr,
+ &command, 1);
+ if (result < 0) {
+ dev_err(&fc->dev, "Could not read get_report register from %#06x.\n",
+ fc->fd.command_base_addr);
+ data->status = -ETIMEDOUT;
+ } else {
+ if (command & GET_REPORT) {
+ dev_warn(&fc->dev, "Report type unsupported!");
+ data->status = -EINVAL;
+ } else {
+ data->status = -ETIMEDOUT;
+ }
+ }
+ if (driver->restore_irq_mask) {
+ dev_dbg(&fc->dev, "Restoring interupts!\n");
+ driver->restore_irq_mask(fc->rmi_dev);
+ } else {
+ dev_err(&fc->dev, "No way to restore interrupts!\n");
+ }
+ }
+ mutex_unlock(&data->status_mutex);
+}
+
+static enum hrtimer_restart clear_status(struct hrtimer *timer)
+{
+ struct rmi_fn_54_data *data = container_of(timer,
+ struct rmi_fn_54_data, watchdog);
+ schedule_work(&(data->work));
+ return HRTIMER_NORESTART;
+}
+#endif
+
+/* Check if report_type is valid */
+static bool is_report_type_valid(enum f54_report_types reptype)
+{
+ /* Basic checks on report_type to ensure we write a valid type
+ * to the sensor.
+ * TODO: Check Query3 to see if some specific reports are
+ * available. This is currently listed as a reserved register.
+ */
+ switch (reptype) {
+ case F54_8BIT_IMAGE:
+ case F54_16BIT_IMAGE:
+ case F54_RAW_16BIT_IMAGE:
+ case F54_HIGH_RESISTANCE:
+ case F54_TX_TO_TX_SHORT:
+ case F54_RX_TO_RX1:
+ case F54_TRUE_BASELINE:
+ case F54_FULL_RAW_CAP_MIN_MAX:
+ case F54_RX_OPENS1:
+ case F54_TX_OPEN:
+ case F54_TX_TO_GROUND:
+ case F54_RX_TO_RX2:
+ case F54_RX_OPENS2:
+ case F54_FULL_RAW_CAP:
+ case F54_FULL_RAW_CAP_RX_COUPLING_COMP:
+ return true;
+ break;
+ default:
+ return false;
+ }
+}
+
+/* SYSFS file show/store functions */
+static ssize_t rmi_fn_54_report_type_show(struct device *dev,
+ struct device_attribute *attr, char *buf) {
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *f54;
+
+ fc = to_rmi_function_container(dev);
+ f54 = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n", f54->report_type);
+}
+
+static ssize_t rmi_fn_54_report_type_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count) {
+ int result;
+ unsigned long val;
+ unsigned char data;
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ /* need to convert the string data to an actual value */
+ result = strict_strtoul(buf, 10, &val);
+ if (result)
+ return result;
+ if (!is_report_type_valid(val)) {
+ dev_err(dev, "%s : Report type %d is invalid.\n",
+ __func__, (u8) val);
+ return -EINVAL;
+ }
+ mutex_lock(&instance_data->status_mutex);
+ if (instance_data->status != BUSY) {
+ instance_data->report_type = (enum f54_report_types)val;
+ data = (char)val;
+ /* Write the Report Type back to the first Block
+ * Data registers (F54_AD_Data0). */
+ result =
+ rmi_write_block(fc->rmi_dev, fc->fd.data_base_addr,
+ &data, 1);
+ mutex_unlock(&instance_data->status_mutex);
+ if (result < 0) {
+ dev_err(dev, "%s : Could not write report type to"
+ " 0x%x\n", __func__, fc->fd.data_base_addr);
+ return result;
+ }
+ return count;
+ } else {
+ dev_err(dev, "%s : Report type cannot be changed in the middle"
+ " of command.\n", __func__);
+ mutex_unlock(&instance_data->status_mutex);
+ return -EINVAL;
+ }
+}
+
+static ssize_t rmi_fn_54_get_report_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count) {
+ unsigned long val;
+ int error, result;
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+ struct rmi_driver *driver;
+ u8 command;
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+ driver = fc->rmi_dev->driver;
+
+ /* need to convert the string data to an actual value */
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+ /* Do nothing if not set to 1. This prevents accidental commands. */
+ if (val != 1)
+ return count;
+ command = (unsigned char)GET_REPORT;
+ /* Basic checks on report_type to ensure we write a valid type
+ * to the sensor.
+ * TODO: Check Query3 to see if some specific reports are
+ * available. This is currently listed as a reserved register.
+ */
+ if (!is_report_type_valid(instance_data->report_type)) {
+ dev_err(dev, "%s : Report type %d is invalid.\n",
+ __func__, instance_data->report_type);
+ return -EINVAL;
+ }
+ mutex_lock(&instance_data->status_mutex);
+ if (instance_data->status != IDLE) {
+ if (instance_data->status != BUSY) {
+ dev_err(dev, "F54 status is in an abnormal state: 0x%x",
+ instance_data->status);
+ }
+ mutex_unlock(&instance_data->status_mutex);
+ return count;
+ }
+ /* Store interrupts */
+ /* Do not exit if we fail to turn off interupts. We are likely
+ * to still get useful data. The report data can, however, be
+ * corrupted, and there may be unexpected behavior.
+ */
+ dev_dbg(dev, "Storing and overriding interupts\n");
+ if (driver->store_irq_mask)
+ driver->store_irq_mask(fc->rmi_dev,
+ fc->irq_mask);
+ else
+ dev_err(dev, "No way to store interupts!\n");
+ instance_data->status = BUSY;
+
+ /* small delay to avoid race condition in firmare. This value is a bit
+ * higher than absolutely necessary. Should be removed once issue is
+ * resolved in firmware. */
+
+ mdelay(2);
+
+ /* Write the command to the command register */
+ result = rmi_write_block(fc->rmi_dev, fc->fd.command_base_addr,
+ &command, 1);
+ mutex_unlock(&instance_data->status_mutex);
+ if (result < 0) {
+ dev_err(dev, "%s : Could not write command to 0x%x\n",
+ __func__, fc->fd.command_base_addr);
+ return result;
+ }
+#if F54_WATCHDOG
+ /* start watchdog timer */
+ hrtimer_start(&instance_data->watchdog, ktime_set(1, 0),
+ HRTIMER_MODE_REL);
+#endif
+ return count;
+}
+
+static ssize_t rmi_fn_54_force_cal_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count) {
+ unsigned long val;
+ int error, result;
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+ struct rmi_driver *driver;
+ u8 command;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+ driver = fc->rmi_dev->driver;
+
+ /* need to convert the string data to an actual value */
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+ /* Do nothing if not set to 1. This prevents accidental commands. */
+ if (val != 1)
+ return count;
+
+ command = (unsigned char)FORCE_CAL;
+
+ if (instance_data->status == BUSY)
+ return -EBUSY;
+ /* Write the command to the command register */
+ result = rmi_write_block(fc->rmi_dev, fc->fd.command_base_addr,
+ &command, 1);
+ if (result < 0) {
+ dev_err(dev, "%s : Could not write command to 0x%x\n",
+ __func__, fc->fd.command_base_addr);
+ return result;
+ }
+ return count;
+}
+
+static ssize_t rmi_fn_54_status_show(struct device *dev,
+ struct device_attribute *attr, char *buf) {
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", instance_data->status);
+}
+
+simple_show_union_struct_unsigned(query, num_of_rx_electrodes)
+simple_show_union_struct_unsigned(query, num_of_tx_electrodes)
+simple_show_union_struct_unsigned(query, has_image16)
+simple_show_union_struct_unsigned(query, has_image8)
+simple_show_union_struct_unsigned(query, has_baseline)
+simple_show_union_struct_unsigned(query, clock_rate)
+simple_show_union_struct_unsigned(query, touch_controller_family)
+simple_show_union_struct_unsigned(query, has_pixel_touch_threshold_adjustment)
+simple_show_union_struct_unsigned(query, has_sensor_assignment)
+simple_show_union_struct_unsigned(query, has_interference_metric)
+simple_show_union_struct_unsigned(query, has_sense_frequency_control)
+simple_show_union_struct_unsigned(query, has_firmware_noise_mitigation)
+simple_show_union_struct_unsigned(query, has_two_byte_report_rate)
+simple_show_union_struct_unsigned(query, has_one_byte_report_rate)
+simple_show_union_struct_unsigned(query, has_relaxation_control)
+simple_show_union_struct_unsigned(query, curve_compensation_mode)
+simple_show_union_struct_unsigned(query, has_iir_filter)
+simple_show_union_struct_unsigned(query, has_cmn_removal)
+simple_show_union_struct_unsigned(query, has_cmn_maximum)
+simple_show_union_struct_unsigned(query, has_touch_hysteresis)
+simple_show_union_struct_unsigned(query, has_edge_compensation)
+simple_show_union_struct_unsigned(query, has_per_frequency_noise_control)
+simple_show_union_struct_unsigned(query, number_of_sensing_frequencies)
+
+static ssize_t rmi_fn_54_no_auto_cal_show(struct device *dev,
+ struct device_attribute *attr, char *buf) {
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *data;
+
+ fc = to_rmi_function_container(dev);
+ data = fc->data;
+
+ return snprintf(buf, PAGE_SIZE, "%u\n",
+ data->no_auto_cal ? 1 : 0);
+}
+
+static ssize_t rmi_fn_54_no_auto_cal_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count) {
+ int result;
+ unsigned long val;
+ unsigned char data;
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ /* need to convert the string data to an actual value */
+ result = strict_strtoul(buf, 10, &val);
+
+ /* if an error occured, return it */
+ if (result)
+ return result;
+ /* Do nothing if not 0 or 1. This prevents accidental commands. */
+ if (val > 1)
+ return -EINVAL;
+ /* Read current control values */
+ result =
+ rmi_read_block(fc->rmi_dev, fc->fd.control_base_addr, &data, 1);
+
+ /* if the current control registers are already set as we want them, do
+ * nothing to them */
+ if ((data & NO_AUTO_CAL_MASK) == val)
+ return count;
+ /* Write the control back to the control register (F54_AD_Ctrl0)
+ * Ignores everything but bit 0 */
+ data = (data & ~NO_AUTO_CAL_MASK) | (val & NO_AUTO_CAL_MASK);
+ result =
+ rmi_write_block(fc->rmi_dev, fc->fd.control_base_addr, &data, 1);
+ if (result < 0) {
+ dev_err(dev, "%s : Could not write control to 0x%x\n",
+ __func__, fc->fd.control_base_addr);
+ return result;
+ }
+ /* update our internal representation iff the write succeeds */
+ instance_data->no_auto_cal = (val == 1);
+ return count;
+}
+
+static ssize_t rmi_fn_54_fifoindex_show(struct device *dev,
+ struct device_attribute *attr, char *buf) {
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+ struct rmi_driver *driver;
+ unsigned char temp_buf[2];
+ int retval;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+ driver = fc->rmi_dev->driver;
+
+ /* Read fifoindex from device */
+ retval = rmi_read_block(fc->rmi_dev,
+ fc->fd.data_base_addr + RMI_F54_FIFO_OFFSET,
+ temp_buf, ARRAY_SIZE(temp_buf));
+
+ if (retval < 0) {
+ dev_err(dev, "Could not read fifoindex from 0x%04x\n",
+ fc->fd.data_base_addr + RMI_F54_FIFO_OFFSET);
+ return retval;
+ }
+ batohs(&instance_data->fifoindex, temp_buf);
+ return snprintf(buf, PAGE_SIZE, "%u\n", instance_data->fifoindex);
+}
+static ssize_t rmi_fn_54_fifoindex_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int error;
+ unsigned long val;
+ unsigned char data[2];
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+
+ /* need to convert the string data to an actual value */
+ error = strict_strtoul(buf, 10, &val);
+
+ if (error)
+ return error;
+
+ instance_data->fifoindex = val;
+
+ /* Write the FifoIndex back to the first data registers. */
+ hstoba(data, (unsigned short)val);
+
+ error = rmi_write_block(fc->rmi_dev,
+ fc->fd.data_base_addr + RMI_F54_FIFO_OFFSET,
+ data,
+ ARRAY_SIZE(data));
+
+ if (error < 0) {
+ dev_err(dev, "%s : Could not write fifoindex to 0x%x\n",
+ __func__, fc->fd.data_base_addr + RMI_F54_FIFO_OFFSET);
+ return error;
+ }
+ return count;
+}
+
+/* Provide access to last report */
+static ssize_t rmi_fn_54_data_read(struct file *data_file, struct kobject *kobj,
+ struct bin_attribute *attributes,
+ char *buf, loff_t pos, size_t count)
+{
+ struct device *dev;
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *instance_data;
+
+ dev = container_of(kobj, struct device, kobj);
+ fc = to_rmi_function_container(dev);
+ instance_data = fc->data;
+ mutex_lock(&instance_data->data_mutex);
+ if (count < instance_data->report_size) {
+ dev_err(dev,
+ "%s: F54 report size too large for buffer: %d."
+ " Need at least: %d for Report type: %d.\n",
+ __func__, count, instance_data->report_size,
+ instance_data->report_type);
+ mutex_unlock(&instance_data->data_mutex);
+ return -EINVAL;
+ }
+ if (instance_data->report_data) {
+ /* Copy data from instance_data to buffer */
+ memcpy(buf, instance_data->report_data,
+ instance_data->report_size);
+ mutex_unlock(&instance_data->data_mutex);
+ dev_dbg(dev, "%s: Presumably successful.", __func__);
+ return instance_data->report_size;
+ } else {
+ dev_err(dev, "%s: F54 report_data does not exist!\n", __func__);
+ mutex_unlock(&instance_data->data_mutex);
+ return -EINVAL;
+ }
+}
+
+/* Repeated Register sysfs functions */
+show_repeated_union_struct_unsigned(control, reg_15, sensor_rx_assignment)
+show_repeated_union_struct_unsigned(control, reg_16, sensor_tx_assignment)
+
+show_repeated_union_struct_unsigned(control, reg_17, filter_bandwidth)
+show_repeated_union_struct_unsigned(control, reg_17, disable)
+
+
+static ssize_t rmi_fn_54_burst_count_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf) {
+ struct rmi_function_container *fc;
+ struct rmi_fn_54_data *data;
+ int result, size = 0;
+ char *temp;
+ int i;
+
+ fc = to_rmi_function_container(dev);
+ data = fc->data;
+ mutex_lock(&data->control_mutex);
+ /* Read current control values */
+ result = rmi_read_block(fc->rmi_dev, data->control.reg_17->address,
+ (u8 *) data->control.reg_17->regs,
+ data->control.reg_17->length * sizeof(u8));
+ if (result < 0) {
+ dev_err(dev, "%s : Could not read control at 0x%x\n"
+ "Data may be outdated.", __func__,
+ data->control.reg_17->address);
+ }
+
+ result = rmi_read_block(fc->rmi_dev, data->control.reg_18->address,
+ (u8 *)data->control.reg_18->regs,
+ data->control.reg_18->length * sizeof(u8));
+ if (result < 0) {
+ dev_err(dev, "%s : Could not read control at 0x%x\n"
+ "Data may be outdated.", __func__,
+ data->control.reg_18->address);
+ }
+ mutex_unlock(&data->control_mutex);
+ temp = buf;
+ for (i = 0; i < data->control.reg_17->length; i++) {
+ result = snprintf(temp, PAGE_SIZE - size, "%u ", (1<<8) *
+ data->control.reg_17->regs[i].burst_countb10__8 +
+ data->control.reg_18->regs[i].burst_countb7__0n);
+ size += result;
+ temp += result;
+ }
+ return size + snprintf(temp, PAGE_SIZE - size, "\n");
+}
+
+show_repeated_union_struct_unsigned(control, reg_19, stretch_duration)
+show_store_repeated_union_struct_unsigned(control, reg_36, axis1_comp)
+show_store_repeated_union_struct_unsigned(control, reg_37, axis2_comp)
+
+show_repeated_union_struct_unsigned(control, reg_38, noise_control_1)
+show_repeated_union_struct_unsigned(control, reg_39, noise_control_2)
+show_repeated_union_struct_unsigned(control, reg_40, noise_control_3)
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+
+show_store_union_struct_unsigned(control, reg_0, no_relax)
+show_store_union_struct_unsigned(control, reg_0, no_scan)
+show_store_union_struct_unsigned(control, reg_1, bursts_per_cluster)
+show_store_union_struct_unsigned(control, reg_2, saturation_cap)
+show_store_union_struct_unsigned(control, reg_3, pixel_touch_threshold)
+show_store_union_struct_unsigned(control, reg_4__6, rx_feedback_cap)
+show_store_union_struct_unsigned(control, reg_4__6, low_ref_cap)
+show_store_union_struct_unsigned(control, reg_4__6, low_ref_feedback_cap)
+show_store_union_struct_unsigned(control, reg_4__6, low_ref_polarity)
+show_store_union_struct_unsigned(control, reg_4__6, high_ref_cap)
+show_store_union_struct_unsigned(control, reg_4__6, high_ref_feedback_cap)
+show_store_union_struct_unsigned(control, reg_4__6, high_ref_polarity)
+show_store_union_struct_unsigned(control, reg_7, cbc_cap)
+show_store_union_struct_unsigned(control, reg_7, cbc_polarity)
+show_store_union_struct_unsigned(control, reg_7, cbc_tx_carrier_selection)
+show_store_union_struct_unsigned(control, reg_8__9, integration_duration)
+show_store_union_struct_unsigned(control, reg_8__9, reset_duration)
+show_store_union_struct_unsigned(control, reg_10,
+ noise_sensing_bursts_per_image)
+show_store_union_struct_unsigned(control, reg_12__13, slow_relaxation_rate)
+show_store_union_struct_unsigned(control, reg_12__13, fast_relaxation_rate)
+show_store_union_struct_unsigned(control, reg_14, rxs_on_xaxis)
+show_store_union_struct_unsigned(control, reg_14, curve_comp_on_txs)
+show_store_union_struct_unsigned(control, reg_20, disable_noise_mitigation)
+show_store_union_struct_unsigned(control, reg_21, freq_shift_noise_threshold)
+show_store_union_struct_unsigned(control, reg_22__26, medium_noise_threshold)
+show_store_union_struct_unsigned(control, reg_22__26, high_noise_threshold)
+show_store_union_struct_unsigned(control, reg_22__26, noise_density)
+show_store_union_struct_unsigned(control, reg_22__26, frame_count)
+show_store_union_struct_unsigned(control, reg_27, iir_filter_coef)
+show_store_union_struct_unsigned(control, reg_28, quiet_threshold)
+show_store_union_struct_unsigned(control, reg_29, cmn_filter_disable)
+show_store_union_struct_unsigned(control, reg_30, cmn_filter_max)
+show_store_union_struct_unsigned(control, reg_31, touch_hysteresis)
+show_store_union_struct_unsigned(control, reg_32__35, rx_low_edge_comp)
+show_store_union_struct_unsigned(control, reg_32__35, rx_high_edge_comp)
+show_store_union_struct_unsigned(control, reg_32__35, tx_low_edge_comp)
+show_store_union_struct_unsigned(control, reg_32__35, tx_high_edge_comp)
+
+/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! */
+static struct rmi_function_handler function_handler = {
+ .func = 0x54,
+ .init = rmi_f54_init,
+ .config = NULL,
+ .reset = rmi_f54_reset,
+ .attention = rmi_f54_attention,
+ .remove = rmi_f54_remove
+};
+
+static int __init rmi_f54_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 rmi_f54_module_exit(void)
+{
+ rmi_unregister_function_driver(&function_handler);
+}
+
+module_init(rmi_f54_module_init);
+module_exit(rmi_f54_module_exit);
+
+MODULE_AUTHOR("Daniel Rosenberg <daniel.rosenberg@xxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("RMI F54 module");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(RMI_DRIVER_VERSION);
--
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