| /* |
| * Synaptics DSX touchscreen driver |
| * |
| * Copyright (C) 2012-2015 Synaptics Incorporated. All rights reserved. |
| * |
| * Copyright (C) 2012 Alexandra Chin <alexandra.chin@tw.synaptics.com> |
| * Copyright (C) 2012 Scott Lin <scott.lin@tw.synaptics.com> |
| * Copyright 2018 NXP |
| * |
| * 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. |
| * |
| * INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED "AS-IS," AND SYNAPTICS |
| * EXPRESSLY DISCLAIMS ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING ANY |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, |
| * AND ANY WARRANTIES OF NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHTS. |
| * IN NO EVENT SHALL SYNAPTICS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION |
| * WITH THE USE OF THE INFORMATION CONTAINED IN THIS DOCUMENT, HOWEVER CAUSED |
| * AND BASED ON ANY THEORY OF LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * NEGLIGENCE OR OTHER TORTIOUS ACTION, AND EVEN IF SYNAPTICS WAS ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. IF A TRIBUNAL OF COMPETENT JURISDICTION DOES |
| * NOT PERMIT THE DISCLAIMER OF DIRECT DAMAGES OR ANY OTHER DAMAGES, SYNAPTICS' |
| * TOTAL CUMULATIVE LIABILITY TO ANY PARTY SHALL NOT EXCEED ONE HUNDRED U.S. |
| * DOLLARS. |
| */ |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/i2c.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| #include <linux/input.h> |
| #include <linux/stringify.h> |
| #include <linux/gpio.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/kthread.h> |
| #include <linux/device.h> |
| #include <linux/fs.h> |
| #include <linux/gpio.h> |
| |
| #include "synaptics_dsx_i2c.h" |
| #include "synaptics_dsx.h" |
| |
| #include <linux/of.h> |
| #include <linux/of_irq.h> |
| #include <linux/of_address.h> |
| #include <linux/of_device.h> |
| #include <linux/of_gpio.h> |
| |
| #include <linux/input/mt.h> |
| |
| |
| #define DRIVER_NAME "synaptics_dsx_i2c" |
| #define INPUT_PHYS_NAME "synaptics_dsx_i2c/input0" |
| |
| #define TYPE_B_PROTOCOL |
| |
| #define UBL_I2C_ADDR 0x2c |
| |
| #define SENSOR_MAX_X 1080 |
| #define SENSOR_MAX_Y 1920 |
| |
| #define WAKEUP_GESTURE false |
| |
| #define NO_0D_WHILE_2D |
| #define REPORT_2D_W |
| |
| #define F12_DATA_15_WORKAROUND |
| |
| #define RPT_TYPE (1 << 0) |
| #define RPT_X_LSB (1 << 1) |
| #define RPT_X_MSB (1 << 2) |
| #define RPT_Y_LSB (1 << 3) |
| #define RPT_Y_MSB (1 << 4) |
| #define RPT_Z (1 << 5) |
| #define RPT_WX (1 << 6) |
| #define RPT_WY (1 << 7) |
| #define RPT_DEFAULT (RPT_TYPE | RPT_X_LSB | RPT_X_MSB | RPT_Y_LSB | RPT_Y_MSB) |
| #define attrify(propname) (&dev_attr_##propname.attr) |
| |
| #define EXP_FN_WORK_DELAY_MS 1000 /* ms */ |
| #define SYN_I2C_RETRY_TIMES 5 |
| #define MAX_F11_TOUCH_WIDTH 15 |
| |
| #define CHECK_STATUS_TIMEOUT_MS 100 |
| #define DELAY_BOOT_READY 200 |
| #define DELAY_RESET_LOW 20 |
| #define DELAY_UI_READY 200 |
| |
| #define F01_STD_QUERY_LEN 21 |
| #define F01_BUID_ID_OFFSET 18 |
| #define F11_STD_QUERY_LEN 9 |
| #define F11_STD_CTRL_LEN 10 |
| #define F11_STD_DATA_LEN 12 |
| |
| #define STATUS_NO_ERROR 0x00 |
| #define STATUS_RESET_OCCURRED 0x01 |
| #define STATUS_INVALID_CONFIG 0x02 |
| #define STATUS_DEVICE_FAILURE 0x03 |
| #define STATUS_CONFIG_CRC_FAILURE 0x04 |
| #define STATUS_FIRMWARE_CRC_FAILURE 0x05 |
| #define STATUS_CRC_IN_PROGRESS 0x06 |
| |
| #define NORMAL_OPERATION (0 << 0) |
| #define SENSOR_SLEEP (1 << 0) |
| #define NO_SLEEP_OFF (0 << 2) |
| #define NO_SLEEP_ON (1 << 2) |
| #define CONFIGURED (1 << 7) |
| |
| |
| #define F11_CONTINUOUS_MODE 0x00 |
| #define F11_WAKEUP_GESTURE_MODE 0x04 |
| #define F12_CONTINUOUS_MODE 0x00 |
| #define F12_WAKEUP_GESTURE_MODE 0x02 |
| |
| #define F12_UDG_DETECT 0x0f |
| |
| #ifdef USE_I2C_DMA |
| #include <linux/dma-mapping.h> |
| static unsigned char *wDMABuf_va; |
| static dma_addr_t wDMABuf_pa; |
| #endif |
| |
| static struct task_struct *thread; |
| static DECLARE_WAIT_QUEUE_HEAD(waiter); |
| static int tpd_flag; |
| DEFINE_MUTEX(rmi4_report_mutex); |
| static struct device *g_dev; |
| |
| /* for 0D button */ |
| static unsigned int cap_button_codes[] = {KEY_APPSELECT, KEY_HOMEPAGE, KEY_BACK}; |
| static struct synaptics_dsx_cap_button_map cap_button_map = { |
| .nbuttons = ARRAY_SIZE(cap_button_codes), |
| .map = cap_button_codes, |
| }; |
| |
| #ifdef CONFIG_OF_TOUCH |
| unsigned int touch_irq; |
| #endif |
| |
| #ifdef CONFIG_OF_TOUCH |
| static irqreturn_t tpd_eint_handler(unsigned int irq, struct irq_desc *desc); |
| #else |
| static void tpd_eint_handler(void); |
| #endif |
| |
| static int touch_event_handler(void *data); |
| |
| static int synaptics_rmi4_i2c_read(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short addr, unsigned char *data, |
| unsigned short length); |
| |
| static int synaptics_rmi4_i2c_write(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short addr, unsigned char *data, |
| unsigned short length); |
| |
| static int synaptics_rmi4_f12_set_enables(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short ctrl28); |
| |
| static int synaptics_rmi4_free_fingers(struct synaptics_rmi4_data *rmi4_data); |
| static int synaptics_rmi4_reinit_device(struct synaptics_rmi4_data *rmi4_data); |
| static int synaptics_rmi4_reset_device(struct synaptics_rmi4_data *rmi4_data); |
| |
| |
| static int __maybe_unused synaptics_rmi4_suspend(struct device *dev); |
| |
| static int __maybe_unused synaptics_rmi4_resume(struct device *dev); |
| |
| static ssize_t synaptics_rmi4_f01_reset_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t synaptics_rmi4_f01_productinfo_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t synaptics_rmi4_f01_buildid_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t synaptics_rmi4_f01_flashprog_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t synaptics_rmi4_0dbutton_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t synaptics_rmi4_0dbutton_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t synaptics_rmi4_suspend_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| |
| static ssize_t synaptics_rmi4_wake_gesture_show(struct device *dev, |
| struct device_attribute *attr, char *buf); |
| |
| static ssize_t synaptics_rmi4_wake_gesture_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count); |
| struct synaptics_rmi4_f01_device_status { |
| union { |
| struct { |
| unsigned char status_code:4; |
| unsigned char reserved:2; |
| unsigned char flash_prog:1; |
| unsigned char unconfigured:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_query_0_5 { |
| union { |
| struct { |
| /* query 0 */ |
| unsigned char f11_query0_b0__2:3; |
| unsigned char has_query_9:1; |
| unsigned char has_query_11:1; |
| unsigned char has_query_12:1; |
| unsigned char has_query_27:1; |
| unsigned char has_query_28:1; |
| |
| /* query 1 */ |
| unsigned char num_of_fingers:3; |
| unsigned char has_rel:1; |
| unsigned char has_abs:1; |
| unsigned char has_gestures:1; |
| unsigned char has_sensitibity_adjust:1; |
| unsigned char f11_query1_b7:1; |
| |
| /* query 2 */ |
| unsigned char num_of_x_electrodes; |
| |
| /* query 3 */ |
| unsigned char num_of_y_electrodes; |
| |
| /* query 4 */ |
| unsigned char max_electrodes:7; |
| unsigned char f11_query4_b7:1; |
| |
| /* query 5 */ |
| unsigned char abs_data_size:2; |
| unsigned char has_anchored_finger:1; |
| unsigned char has_adj_hyst:1; |
| unsigned char has_dribble:1; |
| unsigned char has_bending_correction:1; |
| unsigned char has_large_object_suppression:1; |
| unsigned char has_jitter_filter:1; |
| } __packed; |
| unsigned char data[6]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_query_7_8 { |
| union { |
| struct { |
| /* query 7 */ |
| unsigned char has_single_tap:1; |
| unsigned char has_tap_and_hold:1; |
| unsigned char has_double_tap:1; |
| unsigned char has_early_tap:1; |
| unsigned char has_flick:1; |
| unsigned char has_press:1; |
| unsigned char has_pinch:1; |
| unsigned char has_chiral_scroll:1; |
| |
| /* query 8 */ |
| unsigned char has_palm_detect:1; |
| unsigned char has_rotate:1; |
| unsigned char has_touch_shapes:1; |
| unsigned char has_scroll_zones:1; |
| unsigned char individual_scroll_zones:1; |
| unsigned char has_multi_finger_scroll:1; |
| unsigned char has_multi_finger_scroll_edge_motion:1; |
| unsigned char has_multi_finger_scroll_inertia:1; |
| } __packed; |
| unsigned char data[2]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_query_9 { |
| union { |
| struct { |
| unsigned char has_pen:1; |
| unsigned char has_proximity:1; |
| unsigned char has_large_object_sensitivity:1; |
| unsigned char has_suppress_on_large_object_detect:1; |
| unsigned char has_two_pen_thresholds:1; |
| unsigned char has_contact_geometry:1; |
| unsigned char has_pen_hover_discrimination:1; |
| unsigned char has_pen_hover_and_edge_filters:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_query_12 { |
| union { |
| struct { |
| unsigned char has_small_object_detection:1; |
| unsigned char has_small_object_detection_tuning:1; |
| unsigned char has_8bit_w:1; |
| unsigned char has_2d_adjustable_mapping:1; |
| unsigned char has_general_information_2:1; |
| unsigned char has_physical_properties:1; |
| unsigned char has_finger_limit:1; |
| unsigned char has_linear_cofficient_2:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_query_27 { |
| union { |
| struct { |
| unsigned char f11_query27_b0:1; |
| unsigned char has_pen_position_correction:1; |
| unsigned char has_pen_jitter_filter_coefficient:1; |
| unsigned char has_group_decomposition:1; |
| unsigned char has_wakeup_gesture:1; |
| unsigned char has_small_finger_correction:1; |
| unsigned char has_data_37:1; |
| unsigned char f11_query27_b7:1; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_ctrl_6_9 { |
| union { |
| struct { |
| unsigned char sensor_max_x_pos_7_0; |
| unsigned char sensor_max_x_pos_11_8:4; |
| unsigned char f11_ctrl7_b4__7:4; |
| unsigned char sensor_max_y_pos_7_0; |
| unsigned char sensor_max_y_pos_11_8:4; |
| unsigned char f11_ctrl9_b4__7:4; |
| } __packed; |
| unsigned char data[4]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f11_data_1_5 { |
| union { |
| struct { |
| unsigned char x_position_11_4; |
| unsigned char y_position_11_4; |
| unsigned char x_position_3_0:4; |
| unsigned char y_position_3_0:4; |
| unsigned char wx:4; |
| unsigned char wy:4; |
| unsigned char z; |
| } __packed; |
| unsigned char data[5]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f12_query_5 { |
| union { |
| struct { |
| unsigned char size_of_query6; |
| struct { |
| unsigned char ctrl0_is_present:1; |
| unsigned char ctrl1_is_present:1; |
| unsigned char ctrl2_is_present:1; |
| unsigned char ctrl3_is_present:1; |
| unsigned char ctrl4_is_present:1; |
| unsigned char ctrl5_is_present:1; |
| unsigned char ctrl6_is_present:1; |
| unsigned char ctrl7_is_present:1; |
| } __packed; |
| struct { |
| unsigned char ctrl8_is_present:1; |
| unsigned char ctrl9_is_present:1; |
| unsigned char ctrl10_is_present:1; |
| unsigned char ctrl11_is_present:1; |
| unsigned char ctrl12_is_present:1; |
| unsigned char ctrl13_is_present:1; |
| unsigned char ctrl14_is_present:1; |
| unsigned char ctrl15_is_present:1; |
| } __packed; |
| struct { |
| unsigned char ctrl16_is_present:1; |
| unsigned char ctrl17_is_present:1; |
| unsigned char ctrl18_is_present:1; |
| unsigned char ctrl19_is_present:1; |
| unsigned char ctrl20_is_present:1; |
| unsigned char ctrl21_is_present:1; |
| unsigned char ctrl22_is_present:1; |
| unsigned char ctrl23_is_present:1; |
| } __packed; |
| struct { |
| unsigned char ctrl24_is_present:1; |
| unsigned char ctrl25_is_present:1; |
| unsigned char ctrl26_is_present:1; |
| unsigned char ctrl27_is_present:1; |
| unsigned char ctrl28_is_present:1; |
| unsigned char ctrl29_is_present:1; |
| unsigned char ctrl30_is_present:1; |
| unsigned char ctrl31_is_present:1; |
| } __packed; |
| }; |
| unsigned char data[5]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f12_query_8 { |
| union { |
| struct { |
| unsigned char size_of_query9; |
| struct { |
| unsigned char data0_is_present:1; |
| unsigned char data1_is_present:1; |
| unsigned char data2_is_present:1; |
| unsigned char data3_is_present:1; |
| unsigned char data4_is_present:1; |
| unsigned char data5_is_present:1; |
| unsigned char data6_is_present:1; |
| unsigned char data7_is_present:1; |
| } __packed; |
| struct { |
| unsigned char data8_is_present:1; |
| unsigned char data9_is_present:1; |
| unsigned char data10_is_present:1; |
| unsigned char data11_is_present:1; |
| unsigned char data12_is_present:1; |
| unsigned char data13_is_present:1; |
| unsigned char data14_is_present:1; |
| unsigned char data15_is_present:1; |
| } __packed; |
| }; |
| unsigned char data[3]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f12_ctrl_8 { |
| union { |
| struct { |
| unsigned char max_x_coord_lsb; |
| unsigned char max_x_coord_msb; |
| unsigned char max_y_coord_lsb; |
| unsigned char max_y_coord_msb; |
| unsigned char rx_pitch_lsb; |
| unsigned char rx_pitch_msb; |
| unsigned char tx_pitch_lsb; |
| unsigned char tx_pitch_msb; |
| unsigned char low_rx_clip; |
| unsigned char high_rx_clip; |
| unsigned char low_tx_clip; |
| unsigned char high_tx_clip; |
| unsigned char num_of_rx; |
| unsigned char num_of_tx; |
| }; |
| unsigned char data[14]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f12_ctrl_23 { |
| union { |
| struct { |
| unsigned char obj_type_enable; |
| unsigned char max_reported_objects; |
| }; |
| unsigned char data[2]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f12_finger_data { |
| unsigned char object_type_and_status; |
| unsigned char x_lsb; |
| unsigned char x_msb; |
| unsigned char y_lsb; |
| unsigned char y_msb; |
| #ifdef REPORT_2D_Z |
| unsigned char z; |
| #endif |
| #ifdef REPORT_2D_W |
| unsigned char wx; |
| unsigned char wy; |
| #endif |
| }; |
| |
| struct synaptics_rmi4_f1a_query { |
| union { |
| struct { |
| unsigned char max_button_count:3; |
| unsigned char reserved:5; |
| unsigned char has_general_control:1; |
| unsigned char has_interrupt_enable:1; |
| unsigned char has_multibutton_select:1; |
| unsigned char has_tx_rx_map:1; |
| unsigned char has_perbutton_threshold:1; |
| unsigned char has_release_threshold:1; |
| unsigned char has_strongestbtn_hysteresis:1; |
| unsigned char has_filter_strength:1; |
| } __packed; |
| unsigned char data[2]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f1a_control_0 { |
| union { |
| struct { |
| unsigned char multibutton_report:2; |
| unsigned char filter_mode:2; |
| unsigned char reserved:4; |
| } __packed; |
| unsigned char data[1]; |
| }; |
| }; |
| |
| struct synaptics_rmi4_f1a_control { |
| struct synaptics_rmi4_f1a_control_0 general_control; |
| unsigned char button_int_enable; |
| unsigned char multi_button; |
| unsigned char *txrx_map; |
| unsigned char *button_threshold; |
| unsigned char button_release_threshold; |
| unsigned char strongest_button_hysteresis; |
| unsigned char filter_strength; |
| }; |
| |
| struct synaptics_rmi4_f1a_handle { |
| int button_bitmask_size; |
| unsigned int max_count; |
| unsigned char valid_button_count; |
| unsigned char *button_data_buffer; |
| unsigned int *button_map; |
| struct synaptics_rmi4_f1a_query button_query; |
| struct synaptics_rmi4_f1a_control button_control; |
| }; |
| |
| struct synaptics_rmi4_exp_fhandler { |
| struct synaptics_rmi4_exp_fn *exp_fn; |
| bool insert; |
| bool remove; |
| struct list_head link; |
| }; |
| |
| struct synaptics_rmi4_exp_fn_data { |
| bool initialized; |
| bool queue_work; |
| struct mutex mutex; |
| struct list_head list; |
| struct delayed_work work; |
| struct workqueue_struct *workqueue; |
| struct synaptics_rmi4_data *rmi4_data; |
| }; |
| |
| static struct synaptics_rmi4_exp_fn_data exp_data; |
| |
| static struct device_attribute attrs[] = { |
| __ATTR(reset, 0660, |
| synaptics_rmi4_show_error, |
| synaptics_rmi4_f01_reset_store), |
| __ATTR(productinfo, 0444, |
| synaptics_rmi4_f01_productinfo_show, |
| synaptics_rmi4_store_error), |
| __ATTR(buildid, 0444, |
| synaptics_rmi4_f01_buildid_show, |
| synaptics_rmi4_store_error), |
| __ATTR(flashprog, 0444, |
| synaptics_rmi4_f01_flashprog_show, |
| synaptics_rmi4_store_error), |
| __ATTR(0dbutton, 0660, |
| synaptics_rmi4_0dbutton_show, |
| synaptics_rmi4_0dbutton_store), |
| __ATTR(suspend, 0660, |
| synaptics_rmi4_show_error, |
| synaptics_rmi4_suspend_store), |
| __ATTR(wake_gesture, 0660, |
| synaptics_rmi4_wake_gesture_show, |
| synaptics_rmi4_wake_gesture_store), |
| }; |
| |
| static ssize_t synaptics_rmi4_f01_reset_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned int reset; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| if (sscanf(buf, "%u", &reset) != 1) |
| return -EINVAL; |
| |
| if (reset != 1) |
| return -EINVAL; |
| |
| retval = synaptics_rmi4_reset_device(rmi4_data); |
| if (retval < 0) { |
| dev_err(dev, |
| "%s: Failed to issue reset command, error = %d\n", |
| __func__, retval); |
| return retval; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t synaptics_rmi4_f01_productinfo_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "0x%02x 0x%02x\n", |
| (rmi4_data->rmi4_mod_info.product_info[0]), |
| (rmi4_data->rmi4_mod_info.product_info[1])); |
| } |
| |
| static ssize_t synaptics_rmi4_f01_buildid_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "%u\n", |
| rmi4_data->firmware_id); |
| } |
| |
| static ssize_t synaptics_rmi4_f01_flashprog_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| int retval; |
| struct synaptics_rmi4_f01_device_status device_status; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_data_base_addr, |
| device_status.data, |
| sizeof(device_status.data)); |
| if (retval < 0) { |
| dev_err(dev, |
| "%s: Failed to read device status, error = %d\n", |
| __func__, retval); |
| return retval; |
| } |
| |
| return snprintf(buf, PAGE_SIZE, "%u\n", |
| device_status.flash_prog); |
| } |
| |
| static ssize_t synaptics_rmi4_0dbutton_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "%u\n", |
| rmi4_data->button_0d_enabled); |
| } |
| |
| static ssize_t synaptics_rmi4_0dbutton_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| int retval; |
| unsigned int input; |
| unsigned char ii; |
| unsigned char intr_enable; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| if (sscanf(buf, "%u", &input) != 1) |
| return -EINVAL; |
| |
| input = input > 0 ? 1 : 0; |
| |
| if (rmi4_data->button_0d_enabled == input) |
| return count; |
| |
| if (list_empty(&rmi->support_fn_list)) |
| return -ENODEV; |
| |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F1A) { |
| ii = fhandler->intr_reg_num; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr + 1 + ii, |
| &intr_enable, |
| sizeof(intr_enable)); |
| if (retval < 0) |
| return retval; |
| |
| if (input == 1) |
| intr_enable |= fhandler->intr_mask; |
| else |
| intr_enable &= ~fhandler->intr_mask; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr + 1 + ii, |
| &intr_enable, |
| sizeof(intr_enable)); |
| if (retval < 0) |
| return retval; |
| } |
| } |
| |
| rmi4_data->button_0d_enabled = input; |
| |
| return count; |
| } |
| |
| static ssize_t synaptics_rmi4_suspend_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| unsigned int input; |
| |
| if (sscanf(buf, "%u", &input) != 1) |
| return -EINVAL; |
| |
| if (input == 1) |
| synaptics_rmi4_suspend(dev); |
| else if (input == 0) |
| synaptics_rmi4_resume(dev); |
| else |
| return -EINVAL; |
| |
| return count; |
| } |
| |
| |
| static ssize_t synaptics_rmi4_wake_gesture_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "%u\n", |
| rmi4_data->enable_wakeup_gesture); |
| } |
| |
| static ssize_t synaptics_rmi4_wake_gesture_store(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| unsigned int input; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| if (sscanf(buf, "%u", &input) != 1) |
| return -EINVAL; |
| |
| input = input > 0 ? 1 : 0; |
| |
| if (rmi4_data->f11_wakeup_gesture || rmi4_data->f12_wakeup_gesture) |
| rmi4_data->enable_wakeup_gesture = input; |
| |
| return count; |
| } |
| |
| static int tpd_set_page(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short addr) |
| { |
| int retval = 0; |
| unsigned char retry; |
| unsigned char buf[PAGE_SELECT_LEN]; |
| unsigned char page; |
| struct i2c_client *i2c = rmi4_data->i2c_client; |
| |
| page = ((addr >> 8) & MASK_8BIT); |
| if (page != rmi4_data->current_page) { |
| buf[0] = MASK_8BIT; |
| buf[1] = page; |
| for (retry = 0; retry < SYN_I2C_RETRY_TIMES; retry++) { |
| retval = i2c_master_send(i2c, buf, PAGE_SELECT_LEN); |
| if (retval != PAGE_SELECT_LEN) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: I2C retry %d\n", __func__, retry + 1); |
| msleep(20); |
| if (retry == (SYN_I2C_RETRY_TIMES / 2)) { |
| if (i2c->addr == rmi4_data->i2c_addr) |
| i2c->addr = UBL_I2C_ADDR; |
| else |
| i2c->addr = rmi4_data->i2c_addr; |
| } |
| } else { |
| rmi4_data->current_page = page; |
| break; |
| } |
| } |
| } else { |
| retval = PAGE_SELECT_LEN; |
| } |
| |
| return retval; |
| } |
| |
| |
| int tpd_i2c_read_data(struct synaptics_rmi4_data *rmi4_data, struct i2c_client *client, |
| unsigned short addr, unsigned char *data, unsigned short length) |
| { |
| |
| unsigned char retry = 0; |
| unsigned char *pData = data; |
| unsigned char tmp_addr = (unsigned char)addr; |
| int retval = 0; |
| int left_len = length; |
| |
| /* u16 old_flag; */ |
| mutex_lock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| retval = tpd_set_page(rmi4_data, addr); |
| if (retval != PAGE_SELECT_LEN) { |
| retval = -EIO; |
| goto exit; |
| } |
| |
| retval = i2c_master_send(client, &tmp_addr, 1); |
| while (left_len > 0) { |
| for (retry = 0; retry < SYN_I2C_RETRY_TIMES; retry++) { |
| if (left_len > 8) |
| retval = i2c_master_recv(client, pData, 8); |
| else |
| retval = i2c_master_recv(client, pData, left_len); |
| if (retval <= 0) { |
| dev_err(&client->dev, "%s: I2C retry %d\n", __func__, retry + 1); |
| msleep(20); |
| if (retry == (SYN_I2C_RETRY_TIMES / 2)) { |
| if (client->addr == rmi4_data->i2c_addr) |
| client->addr = UBL_I2C_ADDR; |
| else |
| client->addr = rmi4_data->i2c_addr; |
| } |
| left_len = length; |
| pData = data; |
| retval = i2c_master_send(client, &tmp_addr, 1); |
| continue; |
| } else { |
| break; |
| } |
| } |
| if (retry == SYN_I2C_RETRY_TIMES) { |
| retval = -EIO; |
| goto exit; |
| } |
| left_len -= 8; |
| pData += 8; |
| } |
| exit: |
| mutex_unlock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| return retval; |
| } |
| EXPORT_SYMBOL(tpd_i2c_read_data); |
| |
| #ifdef USE_I2C_DMA |
| int tpd_i2c_write_data_dma(struct synaptics_rmi4_data *rmi4_data, struct i2c_client *client, |
| unsigned short addr, unsigned char *data, unsigned short length) |
| { |
| int retval = 0; |
| unsigned char retry; |
| unsigned char *buf_va = NULL; |
| struct i2c_msg msg[1]; |
| |
| mutex_lock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| msg[0].addr = rmi4_data->i2c_client->addr; |
| msg[0].flags = 0; |
| msg[0].len = length + 1; |
| msg[0].ext_flag = (rmi4_data->i2c_client->ext_flag | I2C_ENEXT_FLAG | I2C_DMA_FLAG), |
| msg[0].buf = (unsigned char *)(uintptr_t)wDMABuf_pa; |
| msg[0].timing = 400; |
| |
| retval = tpd_set_page(rmi4_data, addr); |
| if (retval != PAGE_SELECT_LEN) { |
| retval = -EIO; |
| goto exit; |
| } |
| |
| buf_va = wDMABuf_va; |
| buf_va[0] = addr & MASK_8BIT; |
| memcpy(&buf_va[1], &data[0], length); |
| |
| for (retry = 0; retry < SYN_I2C_RETRY_TIMES; retry++) { |
| if (i2c_transfer(rmi4_data->i2c_client->adapter, msg, 1) == 1) { |
| retval = length; |
| break; |
| } |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: I2C retry %d\n", |
| __func__, retry + 1); |
| msleep(20); |
| |
| if (retry == (SYN_I2C_RETRY_TIMES / 2)) { |
| if (rmi4_data->i2c_client->addr == rmi4_data->i2c_addr) |
| rmi4_data->i2c_client->addr = UBL_I2C_ADDR; |
| else |
| rmi4_data->i2c_client->addr = rmi4_data->i2c_addr; |
| msg[0].addr = rmi4_data->i2c_client->addr; |
| } |
| } |
| |
| if (retry == SYN_I2C_RETRY_TIMES) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: I2C write over retry limit\n", |
| __func__); |
| retval = -EIO; |
| } |
| |
| exit: |
| mutex_unlock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| return retval; |
| } |
| EXPORT_SYMBOL(tpd_i2c_write_data_dma); |
| |
| #else |
| int tpd_i2c_write_data(struct synaptics_rmi4_data *rmi4_data, struct i2c_client *client, |
| unsigned short addr, unsigned char *data, unsigned short length) |
| { |
| int retval = 0; |
| u8 retry = 0; |
| u8 *buf; |
| int tmp_addr = addr; |
| |
| |
| mutex_lock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| retval = tpd_set_page(rmi4_data, addr); |
| if (retval != PAGE_SELECT_LEN) { |
| pr_err("tpd_set_page fail, retval = %d\n", retval); |
| retval = -EIO; |
| goto exit; |
| } |
| |
| buf = kzalloc(sizeof(unsigned char) * (length + 1), GFP_KERNEL); |
| *buf = tmp_addr; |
| memcpy(buf + 1, data, length); |
| for (retry = 0; retry < SYN_I2C_RETRY_TIMES; retry++) { |
| retval = i2c_master_send(client, buf, (length + 1)); |
| if (retval <= 0) { |
| dev_err(&client->dev, "%s: I2C retry %d\n", __func__, retry + 1); |
| msleep(20); |
| continue; |
| } else { |
| break; |
| } |
| } |
| kfree(buf); |
| |
| exit: |
| mutex_unlock(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| |
| return retval; |
| } |
| EXPORT_SYMBOL(tpd_i2c_write_data); |
| |
| #endif |
| |
| /** |
| * synaptics_rmi4_i2c_read() |
| * |
| * Called by various functions in this driver, and also exported to |
| * other expansion Function modules such as rmi_dev. |
| * |
| * This function reads data of an arbitrary length from the sensor, |
| * starting from an assigned register address of the sensor, via I2C |
| * with a retry mechanism. |
| */ |
| static int synaptics_rmi4_i2c_read(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short addr, unsigned char *data, unsigned short length) |
| { |
| return tpd_i2c_read_data(rmi4_data, rmi4_data->i2c_client, addr, data, length); |
| } |
| |
| /** |
| * synaptics_rmi4_i2c_write() |
| * |
| * Called by various functions in this driver, and also exported to |
| * other expansion Function modules such as rmi_dev. |
| * |
| * This function writes data of an arbitrary length to the sensor, |
| * starting from an assigned register address of the sensor, via I2C with |
| * a retry mechanism. |
| */ |
| static int synaptics_rmi4_i2c_write(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short addr, unsigned char *data, unsigned short length) |
| { |
| #ifdef USE_I2C_DMA |
| return tpd_i2c_write_data_dma(rmi4_data, rmi4_data->i2c_client, addr, data, length); |
| #else |
| return tpd_i2c_write_data(rmi4_data, rmi4_data->i2c_client, addr, data, length); |
| #endif |
| } |
| |
| /** |
| * synaptics_rmi4_f11_abs_report() |
| * |
| * Called by synaptics_rmi4_report_touch() when valid Function $11 |
| * finger data has been detected. |
| * |
| * This function reads the Function $11 data registers, determines the |
| * status of each finger supported by the Function, processes any |
| * necessary coordinate manipulation, reports the finger data to |
| * the input subsystem, and returns the number of fingers detected. |
| */ |
| static int synaptics_rmi4_f11_abs_report(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| int retval; |
| unsigned char touch_count = 0; /* number of touch points */ |
| unsigned char reg_index; |
| unsigned char finger; |
| unsigned char fingers_supported; |
| unsigned char num_of_finger_status_regs; |
| unsigned char finger_shift; |
| unsigned char finger_status; |
| unsigned char finger_status_reg[3]; |
| unsigned char detected_gestures; |
| unsigned short data_addr; |
| unsigned short data_offset; |
| int x; |
| int y; |
| int wx; |
| int wy; |
| //int temp; |
| struct synaptics_rmi4_f11_data_1_5 data; |
| struct synaptics_rmi4_f11_extra_data *extra_data; |
| |
| /* |
| * The number of finger status registers is determined by the |
| * maximum number of fingers supported - 2 bits per finger. So |
| * the number of finger status registers to read is: |
| * register_count = ceil(max_num_of_fingers / 4) |
| */ |
| fingers_supported = fhandler->num_of_data_points; |
| num_of_finger_status_regs = (fingers_supported + 3) / 4; |
| data_addr = fhandler->full_addr.data_base; |
| |
| extra_data = (struct synaptics_rmi4_f11_extra_data *)fhandler->extra; |
| |
| if (rmi4_data->sensor_sleep && rmi4_data->enable_wakeup_gesture) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr + extra_data->data38_offset, |
| &detected_gestures, |
| sizeof(detected_gestures)); |
| if (retval < 0) |
| return 0; |
| |
| if (detected_gestures) { |
| input_report_key(rmi4_data->input_dev, KEY_POWER, 1); |
| input_sync(rmi4_data->input_dev); |
| input_report_key(rmi4_data->input_dev, KEY_POWER, 0); |
| input_sync(rmi4_data->input_dev); |
| rmi4_data->sensor_sleep = false; |
| } |
| |
| return 0; |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr, |
| finger_status_reg, |
| num_of_finger_status_regs); |
| if (retval < 0) |
| return 0; |
| mutex_lock(&rmi4_report_mutex); |
| for (finger = 0; finger < fingers_supported; finger++) { |
| reg_index = finger / 4; |
| finger_shift = (finger % 4) * 2; |
| finger_status = (finger_status_reg[reg_index] >> finger_shift) |
| & MASK_2BIT; |
| |
| /* |
| * Each 2-bit finger status field represents the following: |
| * 00 = finger not present |
| * 01 = finger present and data accurate |
| * 10 = finger present but data may be inaccurate |
| * 11 = reserved |
| */ |
| #ifdef TYPE_B_PROTOCOL |
| input_mt_slot(rmi4_data->input_dev, finger); |
| input_mt_report_slot_state(rmi4_data->input_dev, |
| MT_TOOL_FINGER, finger_status); |
| #endif |
| |
| if (finger_status) { |
| data_offset = data_addr + |
| num_of_finger_status_regs + |
| (finger * sizeof(data.data)); |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_offset, |
| data.data, |
| sizeof(data.data)); |
| if (retval < 0) { |
| touch_count = 0; |
| goto exit; |
| } |
| |
| x = (data.x_position_11_4 << 4) | data.x_position_3_0; |
| y = (data.y_position_11_4 << 4) | data.y_position_3_0; |
| if (rmi4_data->diagonal_rotation) { |
| x = rmi4_data->sensor_max_x - x; |
| y = rmi4_data->sensor_max_y - y; |
| } |
| |
| wx = data.wx; |
| wy = data.wy; |
| |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOUCH, 1); |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOOL_FINGER, 1); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_POSITION_X, x); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_POSITION_Y, y); |
| #ifdef REPORT_2D_W |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MAJOR, max(wx, wy)); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MINOR, min(wx, wy)); |
| #endif |
| #ifndef TYPE_B_PROTOCOL |
| input_mt_sync(rmi4_data->input_dev); |
| #endif |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Finger %d:\n" |
| "status = 0x%02x\n" |
| "x = %d\n" |
| "y = %d\n" |
| "wx = %d\n" |
| "wy = %d\n", |
| __func__, finger, |
| finger_status, |
| x, y, wx, wy); |
| |
| touch_count++; |
| } |
| } |
| |
| if (touch_count == 0) { |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOUCH, 0); |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOOL_FINGER, 0); |
| #ifndef TYPE_B_PROTOCOL |
| input_mt_sync(rmi4_data->input_dev); |
| #endif |
| } |
| |
| input_sync(rmi4_data->input_dev); |
| exit: |
| mutex_unlock(&(rmi4_report_mutex)); |
| return touch_count; |
| } |
| |
| /** |
| * synaptics_rmi4_f12_abs_report() |
| * |
| * Called by synaptics_rmi4_report_touch() when valid Function $12 |
| * finger data has been detected. |
| * |
| * This function reads the Function $12 data registers, determines the |
| * status of each finger supported by the Function, processes any |
| * necessary coordinate manipulation, reports the finger data to |
| * the input subsystem, and returns the number of fingers detected. |
| */ |
| static int synaptics_rmi4_f12_abs_report(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| int retval; |
| unsigned char touch_count = 0; /* number of touch points */ |
| unsigned char finger; |
| unsigned char fingers_to_process; |
| unsigned char finger_status; |
| unsigned char size_of_2d_data; |
| unsigned char detected_gestures[F12_GESTURE_DETECTION_LEN]; // byte0 indicate gesture type, byte1~byte4 are gesture parameter |
| unsigned short data_addr; |
| int x; |
| int y; |
| int wx; |
| int wy; |
| int temp; |
| struct synaptics_rmi4_f12_extra_data *extra_data; |
| struct synaptics_rmi4_f12_finger_data *data; |
| struct synaptics_rmi4_f12_finger_data *finger_data; |
| #ifdef F12_DATA_15_WORKAROUND |
| static unsigned char fingers_already_present; |
| #endif |
| |
| fingers_to_process = fhandler->num_of_data_points; |
| data_addr = fhandler->full_addr.data_base; |
| extra_data = (struct synaptics_rmi4_f12_extra_data *)fhandler->extra; |
| size_of_2d_data = sizeof(struct synaptics_rmi4_f12_finger_data); |
| |
| |
| if (rmi4_data->sensor_sleep && rmi4_data->enable_wakeup_gesture) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr + extra_data->data4_offset, |
| detected_gestures, |
| sizeof(detected_gestures)); |
| if (retval < 0) |
| return 0; |
| |
| if (detected_gestures[0] && (detected_gestures[0] != F12_UDG_DETECT)) { // here is demo only, customer could decode gesture data and do whatever they want |
| input_report_key(rmi4_data->input_dev, KEY_POWER, 1); |
| input_sync(rmi4_data->input_dev); |
| input_report_key(rmi4_data->input_dev, KEY_POWER, 0); |
| input_sync(rmi4_data->input_dev); |
| rmi4_data->sensor_sleep = false; |
| } |
| |
| return 0; |
| } |
| |
| |
| /* Determine the total number of fingers to process */ |
| if (extra_data->data15_size) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr + extra_data->data15_offset, |
| extra_data->data15_data, |
| extra_data->data15_size); |
| if (retval < 0) |
| return 0; |
| |
| /* Start checking from the highest bit */ |
| temp = extra_data->data15_size - 1; /* Highest byte */ |
| finger = (fingers_to_process - 1) % 8; /* Highest bit */ |
| do { |
| if (extra_data->data15_data[temp] & (1 << finger)) |
| break; |
| |
| if (finger) { |
| finger--; |
| } else { |
| temp--; /* Move to the next lower byte */ |
| finger = 7; |
| } |
| |
| fingers_to_process--; |
| } while (fingers_to_process); |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Number of fingers to process = %d\n", |
| __func__, fingers_to_process); |
| } |
| |
| #ifdef F12_DATA_15_WORKAROUND |
| fingers_to_process = max(fingers_to_process, fingers_already_present); |
| #endif |
| |
| if (!fingers_to_process) { |
| synaptics_rmi4_free_fingers(rmi4_data); |
| return 0; |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr + extra_data->data1_offset, |
| (unsigned char *)fhandler->data, |
| fingers_to_process * size_of_2d_data); |
| if (retval < 0) |
| return 0; |
| |
| data = (struct synaptics_rmi4_f12_finger_data *)fhandler->data; |
| mutex_lock(&rmi4_report_mutex); |
| for (finger = 0; finger < fingers_to_process; finger++) { |
| finger_data = data + finger; |
| finger_status = finger_data->object_type_and_status & MASK_1BIT; |
| |
| #ifdef TYPE_B_PROTOCOL |
| input_mt_slot(rmi4_data->input_dev, finger); |
| input_mt_report_slot_state(rmi4_data->input_dev, |
| MT_TOOL_FINGER, finger_status); |
| #endif |
| |
| if (finger_status) { |
| #ifdef F12_DATA_15_WORKAROUND |
| fingers_already_present = finger + 1; |
| #endif |
| |
| x = (finger_data->x_msb << 8) | (finger_data->x_lsb); |
| y = (finger_data->y_msb << 8) | (finger_data->y_lsb); |
| if (rmi4_data->diagonal_rotation) { |
| x = rmi4_data->sensor_max_x - x; |
| y = rmi4_data->sensor_max_y - y; |
| } |
| |
| #ifdef REPORT_2D_W |
| wx = finger_data->wx; |
| wy = finger_data->wy; |
| #endif |
| |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOUCH, 1); |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOOL_FINGER, 1); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_POSITION_X, x); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_POSITION_Y, y); |
| #ifdef REPORT_2D_W |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MAJOR, max(wx, wy)); |
| input_report_abs(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MINOR, min(wx, wy)); |
| #endif |
| #ifndef TYPE_B_PROTOCOL |
| input_mt_sync(rmi4_data->input_dev); |
| #endif |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Finger %d:\n" |
| "status = 0x%02x\n" |
| "x = %d\n" |
| "y = %d\n" |
| "wx = %d\n" |
| "wy = %d\n", |
| __func__, finger, |
| finger_status, |
| x, y, wx, wy); |
| |
| touch_count++; |
| } |
| } |
| |
| if (touch_count == 0) { |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOUCH, 0); |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOOL_FINGER, 0); |
| #ifndef TYPE_B_PROTOCOL |
| input_mt_sync(rmi4_data->input_dev); |
| #endif |
| } |
| |
| input_sync(rmi4_data->input_dev); |
| mutex_unlock(&rmi4_report_mutex); |
| return touch_count; |
| } |
| |
| static void synaptics_rmi4_f1a_report(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| int retval; |
| unsigned char touch_count = 0; |
| unsigned char button; |
| unsigned char index; |
| unsigned char shift; |
| unsigned char status; |
| unsigned char *data; |
| unsigned short data_addr = fhandler->full_addr.data_base; |
| struct synaptics_rmi4_f1a_handle *f1a = fhandler->data; |
| static unsigned char do_once = 1; |
| static bool current_status[MAX_NUMBER_OF_BUTTONS]; |
| #ifdef NO_0D_WHILE_2D |
| static bool before_2d_status[MAX_NUMBER_OF_BUTTONS]; |
| static bool while_2d_status[MAX_NUMBER_OF_BUTTONS]; |
| #endif |
| |
| if (do_once) { |
| memset(current_status, 0, sizeof(current_status)); |
| #ifdef NO_0D_WHILE_2D |
| memset(before_2d_status, 0, sizeof(before_2d_status)); |
| memset(while_2d_status, 0, sizeof(while_2d_status)); |
| #endif |
| do_once = 0; |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| data_addr, |
| f1a->button_data_buffer, |
| f1a->button_bitmask_size); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read button data registers\n", |
| __func__); |
| return; |
| } |
| |
| data = f1a->button_data_buffer; |
| mutex_lock(&rmi4_report_mutex); |
| for (button = 0; button < f1a->valid_button_count; button++) { |
| index = button / 8; |
| shift = button % 8; |
| status = ((data[index] >> shift) & MASK_1BIT); |
| |
| if (current_status[button] == status) |
| continue; |
| else |
| current_status[button] = status; |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Button %d (code %d) ->%d\n", |
| __func__, button, |
| f1a->button_map[button], |
| status); |
| #ifdef NO_0D_WHILE_2D |
| if (rmi4_data->fingers_on_2d == false) { |
| if (status == 1) { |
| before_2d_status[button] = 1; |
| } else { |
| if (while_2d_status[button] == 1) { |
| while_2d_status[button] = 0; |
| continue; |
| } else { |
| before_2d_status[button] = 0; |
| } |
| } |
| touch_count++; |
| input_report_key(rmi4_data->input_dev, |
| f1a->button_map[button], |
| status); |
| } else { |
| if (before_2d_status[button] == 1) { |
| before_2d_status[button] = 0; |
| touch_count++; |
| input_report_key(rmi4_data->input_dev, |
| f1a->button_map[button], |
| status); |
| } else { |
| if (status == 1) |
| while_2d_status[button] = 1; |
| else |
| while_2d_status[button] = 0; |
| } |
| } |
| #else |
| touch_count++; |
| input_report_key(rmi4_data->input_dev, |
| f1a->button_map[button], |
| status); |
| #endif |
| } |
| |
| if (touch_count) |
| input_sync(rmi4_data->input_dev); |
| mutex_unlock(&rmi4_report_mutex); |
| return; |
| } |
| |
| /** |
| * synaptics_rmi4_report_touch() |
| * |
| * Called by synaptics_rmi4_sensor_report(). |
| * |
| * This function calls the appropriate finger data reporting function |
| * based on the function handler it receives and returns the number of |
| * fingers detected. |
| */ |
| static void synaptics_rmi4_report_touch(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| unsigned char touch_count_2d; |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Function %02x reporting\n", |
| __func__, fhandler->fn_number); |
| |
| switch (fhandler->fn_number) { |
| case SYNAPTICS_RMI4_F11: |
| touch_count_2d = synaptics_rmi4_f11_abs_report(rmi4_data, |
| fhandler); |
| |
| if (touch_count_2d) |
| rmi4_data->fingers_on_2d = true; |
| else |
| rmi4_data->fingers_on_2d = false; |
| break; |
| case SYNAPTICS_RMI4_F12: |
| touch_count_2d = synaptics_rmi4_f12_abs_report(rmi4_data, |
| fhandler); |
| if (touch_count_2d) |
| rmi4_data->fingers_on_2d = true; |
| else |
| rmi4_data->fingers_on_2d = false; |
| break; |
| case SYNAPTICS_RMI4_F1A: |
| synaptics_rmi4_f1a_report(rmi4_data, fhandler); |
| break; |
| default: |
| break; |
| } |
| |
| return; |
| } |
| |
| /** |
| * synaptics_rmi4_sensor_report() |
| * |
| * Called by synaptics_rmi4_irq(). |
| * |
| * This function determines the interrupt source(s) from the sensor |
| * and calls synaptics_rmi4_report_touch() with the appropriate |
| * function handler for each function with valid data inputs. |
| */ |
| static void synaptics_rmi4_sensor_report(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char data[MAX_INTR_REGISTERS + 1]; |
| unsigned char *intr = &data[1]; |
| struct synaptics_rmi4_f01_device_status status; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| /* |
| * Get interrupt status information from F01 Data1 register to |
| * determine the source(s) that are flagging the interrupt. |
| */ |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_data_base_addr, |
| data, |
| rmi4_data->num_of_intr_regs + 1); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read interrupt status\n", |
| __func__); |
| return; |
| } |
| |
| status.data[0] = data[0]; |
| if (status.unconfigured && !status.flash_prog) { |
| pr_notice("%s: spontaneous reset detected\n", __func__); |
| retval = synaptics_rmi4_reinit_device(rmi4_data); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to reinit device\n", |
| __func__); |
| } |
| return; |
| } |
| |
| /* |
| * Traverse the function handler list and service the source(s) |
| * of the interrupt accordingly. |
| */ |
| if (!list_empty(&rmi->support_fn_list)) { |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->num_of_data_sources) { |
| if (fhandler->intr_mask & |
| intr[fhandler->intr_reg_num]) { |
| synaptics_rmi4_report_touch(rmi4_data, |
| fhandler); |
| } |
| } |
| } |
| } |
| |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) { |
| if (!exp_fhandler->insert && |
| !exp_fhandler->remove && |
| (exp_fhandler->exp_fn->attn != NULL)) |
| exp_fhandler->exp_fn->attn(rmi4_data, intr[0]); |
| } |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| return; |
| } |
| |
| /** |
| * synaptics_rmi4_irq() |
| * |
| * Called by the kernel when an interrupt occurs (when the sensor |
| * asserts the attention irq). |
| * |
| * This function is the ISR thread and handles the acquisition |
| * and the reporting of finger data when the presence of fingers |
| * is detected. |
| */ |
| #ifdef CONFIG_OF_TOUCH |
| static irqreturn_t tpd_eint_handler(unsigned int irq, struct irq_desc *desc) |
| { |
| disable_irq_nosync(touch_irq); |
| |
| tpd_flag = 1; |
| wake_up_interruptible(&waiter); |
| return IRQ_HANDLED; |
| } |
| #else |
| static void tpd_eint_handler(void) |
| { |
| tpd_flag = 1; |
| wake_up_interruptible(&waiter); |
| } |
| #endif |
| |
| static int touch_event_handler(void *data) |
| { |
| struct synaptics_rmi4_data *rmi4_data = data; |
| |
| do { |
| set_current_state(TASK_INTERRUPTIBLE); |
| |
| wait_event_interruptible(waiter, tpd_flag != 0); |
| |
| tpd_flag = 0; |
| set_current_state(TASK_RUNNING); |
| |
| if (!rmi4_data->touch_stopped) |
| synaptics_rmi4_sensor_report(rmi4_data); |
| #ifdef CONFIG_OF_TOUCH |
| enable_irq(touch_irq); |
| #else |
| mt_eint_unmask(CUST_EINT_TOUCH_PANEL_NUM); |
| #endif |
| |
| } while (1); |
| |
| return 0; |
| } |
| |
| /** |
| * synaptics_rmi4_irq_enable() |
| * |
| * Called by synaptics_rmi4_probe() and the power management functions |
| * in this driver and also exported to other expansion Function modules |
| * such as rmi_dev. |
| * |
| * This function handles the enabling and disabling of the attention |
| * irq including the setting up of the ISR thread. |
| */ |
| static int synaptics_rmi4_irq_enable(struct synaptics_rmi4_data *rmi4_data, |
| bool enable) |
| { |
| int retval = 0; |
| |
| if (enable) { |
| /* set up irq */ |
| if (!rmi4_data->irq_enabled) { |
| #ifdef CONFIG_OF_TOUCH |
| enable_irq(touch_irq); |
| #else |
| mt_eint_unmask(CUST_EINT_TOUCH_PANEL_NUM); |
| #endif |
| rmi4_data->irq_enabled = true; |
| |
| } |
| |
| } else { |
| if (rmi4_data->irq_enabled) { |
| #ifdef CONFIG_OF_TOUCH |
| disable_irq_nosync(touch_irq); |
| #else |
| mt_eint_mask(CUST_EINT_TOUCH_PANEL_NUM); |
| #endif |
| rmi4_data->irq_enabled = false; |
| } |
| } |
| |
| return retval; |
| } |
| |
| static void synaptics_rmi4_set_intr_mask(struct synaptics_rmi4_fn *fhandler, |
| struct synaptics_rmi4_fn_desc *fd, |
| unsigned int intr_count) |
| { |
| unsigned char ii; |
| unsigned char intr_offset; |
| |
| fhandler->intr_reg_num = (intr_count + 7) / 8; |
| if (fhandler->intr_reg_num != 0) |
| fhandler->intr_reg_num -= 1; |
| |
| /* Set an enable bit for each data source */ |
| intr_offset = intr_count % 8; |
| fhandler->intr_mask = 0; |
| for (ii = intr_offset; |
| ii < ((fd->intr_src_count & MASK_3BIT) + |
| intr_offset); |
| ii++) |
| fhandler->intr_mask |= 1 << ii; |
| |
| return; |
| } |
| |
| static int synaptics_rmi4_f01_init(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler, |
| struct synaptics_rmi4_fn_desc *fd, |
| unsigned int intr_count) |
| { |
| fhandler->fn_number = fd->fn_number; |
| fhandler->num_of_data_sources = fd->intr_src_count; |
| fhandler->data = NULL; |
| fhandler->extra = NULL; |
| |
| synaptics_rmi4_set_intr_mask(fhandler, fd, intr_count); |
| |
| rmi4_data->f01_query_base_addr = fd->query_base_addr; |
| rmi4_data->f01_ctrl_base_addr = fd->ctrl_base_addr; |
| rmi4_data->f01_data_base_addr = fd->data_base_addr; |
| rmi4_data->f01_cmd_base_addr = fd->cmd_base_addr; |
| |
| return 0; |
| } |
| |
| /** |
| * synaptics_rmi4_f11_init() |
| * |
| * Called by synaptics_rmi4_query_device(). |
| * |
| * This function parses information from the Function 11 registers |
| * and determines the number of fingers supported, x and y data ranges, |
| * offset to the associated interrupt status register, interrupt bit |
| * mask, and gathers finger data acquisition capabilities from the query |
| * registers. |
| */ |
| static int synaptics_rmi4_f11_init(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler, |
| struct synaptics_rmi4_fn_desc *fd, |
| unsigned int intr_count) |
| { |
| int retval; |
| unsigned char offset; |
| unsigned char fingers_supported; |
| struct synaptics_rmi4_f11_extra_data *extra_data; |
| struct synaptics_rmi4_f11_query_0_5 query_0_5; |
| struct synaptics_rmi4_f11_query_7_8 query_7_8; |
| struct synaptics_rmi4_f11_query_9 query_9; |
| struct synaptics_rmi4_f11_query_12 query_12; |
| struct synaptics_rmi4_f11_query_27 query_27; |
| struct synaptics_rmi4_f11_ctrl_6_9 control_6_9; |
| |
| fhandler->fn_number = fd->fn_number; |
| fhandler->num_of_data_sources = fd->intr_src_count; |
| fhandler->extra = kmalloc(sizeof(*extra_data), GFP_KERNEL); |
| if (!fhandler->extra) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for fhandle->extra\n", |
| __func__); |
| return -ENOMEM; |
| } |
| extra_data = (struct synaptics_rmi4_f11_extra_data *)fhandler->extra; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base, |
| query_0_5.data, |
| sizeof(query_0_5.data)); |
| if (retval < 0) |
| return retval; |
| |
| /* Maximum number of fingers supported */ |
| if (query_0_5.num_of_fingers <= 4) |
| fhandler->num_of_data_points = query_0_5.num_of_fingers + 1; |
| else if (query_0_5.num_of_fingers == 5) |
| fhandler->num_of_data_points = 10; |
| |
| rmi4_data->num_of_fingers = fhandler->num_of_data_points; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base + 6, |
| control_6_9.data, |
| sizeof(control_6_9.data)); |
| if (retval < 0) |
| return retval; |
| |
| /* Maximum x and y */ |
| rmi4_data->sensor_max_x = SENSOR_MAX_X; |
| rmi4_data->sensor_max_y = SENSOR_MAX_Y; //control_6_9.sensor_max_y_pos_7_0 | |
| //(control_6_9.sensor_max_y_pos_11_8 << 8); |
| |
| /* It's recommended to parse max_x and max_y from contrel register, but this does not match MTK's mtk-tpd.c */ |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Function %02x max x = %d max y = %d\n", |
| __func__, fhandler->fn_number, |
| rmi4_data->sensor_max_x, |
| rmi4_data->sensor_max_y); |
| |
| rmi4_data->max_touch_width = MAX_F11_TOUCH_WIDTH; |
| |
| synaptics_rmi4_set_intr_mask(fhandler, fd, intr_count); |
| |
| fhandler->data = NULL; |
| |
| offset = sizeof(query_0_5.data); |
| |
| /* query 6 */ |
| if (query_0_5.has_rel) |
| offset += 1; |
| |
| /* queries 7 8 */ |
| if (query_0_5.has_gestures) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + offset, |
| query_7_8.data, |
| sizeof(query_7_8.data)); |
| if (retval < 0) |
| return retval; |
| |
| offset += sizeof(query_7_8.data); |
| } |
| |
| /* query 9 */ |
| if (query_0_5.has_query_9) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + offset, |
| query_9.data, |
| sizeof(query_9.data)); |
| if (retval < 0) |
| return retval; |
| |
| offset += sizeof(query_9.data); |
| } |
| |
| /* query 10 */ |
| if (query_0_5.has_gestures && query_7_8.has_touch_shapes) |
| offset += 1; |
| |
| /* query 11 */ |
| if (query_0_5.has_query_11) |
| offset += 1; |
| |
| /* query 12 */ |
| if (query_0_5.has_query_12) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + offset, |
| query_12.data, |
| sizeof(query_12.data)); |
| if (retval < 0) |
| return retval; |
| |
| offset += sizeof(query_12.data); |
| } |
| |
| /* query 13 */ |
| if (query_0_5.has_jitter_filter) |
| offset += 1; |
| |
| /* query 14 */ |
| if (query_0_5.has_query_12 && query_12.has_general_information_2) |
| offset += 1; |
| |
| /* queries 15 16 17 18 19 20 21 22 23 24 25 26*/ |
| if (query_0_5.has_query_12 && query_12.has_physical_properties) |
| offset += 12; |
| |
| /* query 27 */ |
| if (query_0_5.has_query_27) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + offset, |
| query_27.data, |
| sizeof(query_27.data)); |
| if (retval < 0) |
| return retval; |
| |
| rmi4_data->f11_wakeup_gesture = query_27.has_wakeup_gesture; |
| } |
| |
| if (!rmi4_data->f11_wakeup_gesture) |
| return retval; |
| |
| /* data 0 */ |
| fingers_supported = fhandler->num_of_data_points; |
| offset = (fingers_supported + 3) / 4; |
| |
| /* data 1 2 3 4 5 */ |
| offset += 5 * fingers_supported; |
| |
| /* data 6 7 */ |
| if (query_0_5.has_rel) |
| offset += 2 * fingers_supported; |
| |
| /* data 8 */ |
| if (query_0_5.has_gestures && query_7_8.data[0]) |
| offset += 1; |
| |
| /* data 9 */ |
| if (query_0_5.has_gestures && (query_7_8.data[0] || query_7_8.data[1])) |
| offset += 1; |
| |
| /* data 10 */ |
| if (query_0_5.has_gestures && |
| (query_7_8.has_pinch || query_7_8.has_flick)) |
| offset += 1; |
| |
| /* data 11 12 */ |
| if (query_0_5.has_gestures && |
| (query_7_8.has_flick || query_7_8.has_rotate)) |
| offset += 2; |
| |
| /* data 13 */ |
| if (query_0_5.has_gestures && query_7_8.has_touch_shapes) |
| offset += (fingers_supported + 3) / 4; |
| |
| /* data 14 15 */ |
| if (query_0_5.has_gestures && |
| (query_7_8.has_scroll_zones || |
| query_7_8.has_multi_finger_scroll || |
| query_7_8.has_chiral_scroll)) |
| offset += 2; |
| |
| /* data 16 17 */ |
| if (query_0_5.has_gestures && |
| (query_7_8.has_scroll_zones && |
| query_7_8.individual_scroll_zones)) |
| offset += 2; |
| |
| /* data 18 19 20 21 22 23 24 25 26 27 */ |
| if (query_0_5.has_query_9 && query_9.has_contact_geometry) |
| offset += 10 * fingers_supported; |
| |
| /* data 28 */ |
| if (query_0_5.has_bending_correction || |
| query_0_5.has_large_object_suppression) |
| offset += 1; |
| |
| /* data 29 30 31 */ |
| if (query_0_5.has_query_9 && query_9.has_pen_hover_discrimination) |
| offset += 3; |
| |
| /* data 32 */ |
| if (query_0_5.has_query_12 && |
| query_12.has_small_object_detection_tuning) |
| offset += 1; |
| |
| /* data 33 34 */ |
| if (query_0_5.has_query_27 && query_27.f11_query27_b0) |
| offset += 2; |
| |
| /* data 35 */ |
| if (query_0_5.has_query_12 && query_12.has_8bit_w) |
| offset += fingers_supported; |
| |
| /* data 36 */ |
| if (query_0_5.has_bending_correction) |
| offset += 1; |
| |
| /* data 37 */ |
| if (query_0_5.has_query_27 && query_27.has_data_37) |
| offset += 1; |
| |
| /* data 38 */ |
| if (query_0_5.has_query_27 && query_27.has_wakeup_gesture) |
| extra_data->data38_offset = offset; |
| |
| return retval; |
| } |
| |
| static int synaptics_rmi4_f12_set_enables(struct synaptics_rmi4_data *rmi4_data, |
| unsigned short ctrl28) |
| { |
| int retval; |
| static unsigned short ctrl_28_address; |
| |
| if (ctrl28) |
| ctrl_28_address = ctrl28; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| ctrl_28_address, |
| &rmi4_data->report_enable, |
| sizeof(rmi4_data->report_enable)); |
| if (retval < 0) |
| return retval; |
| |
| return retval; |
| } |
| |
| /** |
| * synaptics_rmi4_f12_init() |
| * |
| * Called by synaptics_rmi4_query_device(). |
| * |
| * This function parses information from the Function 12 registers and |
| * determines the number of fingers supported, offset to the data1 |
| * register, x and y data ranges, offset to the associated interrupt |
| * status register, interrupt bit mask, and allocates memory resources |
| * for finger data acquisition. |
| */ |
| static int synaptics_rmi4_f12_init(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler, |
| struct synaptics_rmi4_fn_desc *fd, |
| unsigned int intr_count) |
| { |
| int retval; |
| unsigned char size_of_2d_data; |
| unsigned char size_of_query8; |
| unsigned char ctrl_8_offset; |
| unsigned char ctrl_20_offset; |
| unsigned char ctrl_23_offset; |
| unsigned char ctrl_27_offset; |
| unsigned char ctrl_28_offset; |
| unsigned char num_of_fingers; |
| struct synaptics_rmi4_f12_extra_data *extra_data; |
| struct synaptics_rmi4_f12_query_5 query_5; |
| struct synaptics_rmi4_f12_query_8 query_8; |
| struct synaptics_rmi4_f12_ctrl_8 ctrl_8; |
| struct synaptics_rmi4_f12_ctrl_23 ctrl_23; |
| |
| fhandler->fn_number = fd->fn_number; |
| fhandler->num_of_data_sources = fd->intr_src_count; |
| fhandler->extra = kmalloc(sizeof(*extra_data), GFP_KERNEL); |
| if (!fhandler->extra) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for fhandler->extra\n", |
| __func__); |
| return -ENOMEM; |
| } |
| extra_data = (struct synaptics_rmi4_f12_extra_data *)fhandler->extra; |
| size_of_2d_data = sizeof(struct synaptics_rmi4_f12_finger_data); |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + 5, |
| query_5.data, |
| sizeof(query_5.data)); |
| if (retval < 0) |
| return retval; |
| |
| ctrl_8_offset = query_5.ctrl0_is_present + |
| query_5.ctrl1_is_present + |
| query_5.ctrl2_is_present + |
| query_5.ctrl3_is_present + |
| query_5.ctrl4_is_present + |
| query_5.ctrl5_is_present + |
| query_5.ctrl6_is_present + |
| query_5.ctrl7_is_present; |
| |
| ctrl_20_offset = ctrl_8_offset + |
| query_5.ctrl8_is_present + |
| query_5.ctrl9_is_present + |
| query_5.ctrl10_is_present + |
| query_5.ctrl11_is_present + |
| query_5.ctrl12_is_present + |
| query_5.ctrl13_is_present + |
| query_5.ctrl14_is_present + |
| query_5.ctrl15_is_present + |
| query_5.ctrl16_is_present + |
| query_5.ctrl17_is_present + |
| query_5.ctrl18_is_present + |
| query_5.ctrl19_is_present; |
| |
| ctrl_23_offset = ctrl_20_offset + |
| query_5.ctrl20_is_present + |
| query_5.ctrl21_is_present + |
| query_5.ctrl22_is_present; |
| ctrl_27_offset = ctrl_23_offset + |
| query_5.ctrl23_is_present + |
| query_5.ctrl24_is_present + |
| query_5.ctrl25_is_present + |
| query_5.ctrl26_is_present; |
| ctrl_28_offset = ctrl_27_offset + |
| query_5.ctrl27_is_present; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base + ctrl_23_offset, |
| ctrl_23.data, |
| sizeof(ctrl_23.data)); |
| if (retval < 0) |
| return retval; |
| |
| /* Maximum number of fingers supported */ |
| fhandler->num_of_data_points = min(ctrl_23.max_reported_objects, |
| (unsigned char)F12_FINGERS_TO_SUPPORT); |
| |
| num_of_fingers = fhandler->num_of_data_points; |
| rmi4_data->num_of_fingers = num_of_fingers; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + 7, |
| &size_of_query8, |
| sizeof(size_of_query8)); |
| if (retval < 0) |
| return retval; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base + 8, |
| query_8.data, |
| size_of_query8); |
| if (retval < 0) |
| return retval; |
| |
| /* Determine the presence of the Data0 register */ |
| extra_data->data1_offset = query_8.data0_is_present; |
| |
| if ((size_of_query8 >= 3) && (query_8.data15_is_present)) { |
| extra_data->data15_offset = query_8.data0_is_present + |
| query_8.data1_is_present + |
| query_8.data2_is_present + |
| query_8.data3_is_present + |
| query_8.data4_is_present + |
| query_8.data5_is_present + |
| query_8.data6_is_present + |
| query_8.data7_is_present + |
| query_8.data8_is_present + |
| query_8.data9_is_present + |
| query_8.data10_is_present + |
| query_8.data11_is_present + |
| query_8.data12_is_present + |
| query_8.data13_is_present + |
| query_8.data14_is_present; |
| extra_data->data15_size = (num_of_fingers + 7) / 8; |
| } else { |
| extra_data->data15_size = 0; |
| } |
| |
| rmi4_data->report_enable = RPT_DEFAULT; |
| #ifdef REPORT_2D_Z |
| rmi4_data->report_enable |= RPT_Z; |
| #endif |
| #ifdef REPORT_2D_W |
| rmi4_data->report_enable |= (RPT_WX | RPT_WY); |
| #endif |
| |
| retval = synaptics_rmi4_f12_set_enables(rmi4_data, |
| fhandler->full_addr.ctrl_base + ctrl_28_offset); |
| if (retval < 0) |
| return retval; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base + ctrl_8_offset, |
| ctrl_8.data, |
| sizeof(ctrl_8.data)); |
| if (retval < 0) |
| return retval; |
| |
| /* Maximum x and y */ |
| rmi4_data->sensor_max_x = SENSOR_MAX_X; |
| rmi4_data->sensor_max_y = SENSOR_MAX_Y; |
| |
| /* It's recommended to parse max_x and max_y from contrel register, but this does not match MTK's mtk-tpd.c */ |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Function %02x max x = %d max y = %d\n", |
| __func__, fhandler->fn_number, |
| rmi4_data->sensor_max_x, |
| rmi4_data->sensor_max_y); |
| |
| rmi4_data->num_of_rx = ctrl_8.num_of_rx; |
| rmi4_data->num_of_tx = ctrl_8.num_of_tx; |
| rmi4_data->max_touch_width = max(rmi4_data->num_of_rx, |
| rmi4_data->num_of_tx); |
| rmi4_data->f12_wakeup_gesture = query_5.ctrl27_is_present; |
| if (rmi4_data->f12_wakeup_gesture) { |
| extra_data->ctrl20_offset = ctrl_20_offset; |
| extra_data->data4_offset = query_8.data0_is_present + |
| query_8.data1_is_present + |
| query_8.data2_is_present + |
| query_8.data3_is_present; |
| extra_data->ctrl27_offset = ctrl_27_offset; |
| } |
| |
| synaptics_rmi4_set_intr_mask(fhandler, fd, intr_count); |
| |
| /* Allocate memory for finger data storage space */ |
| fhandler->data_size = num_of_fingers * size_of_2d_data; |
| fhandler->data = kmalloc(fhandler->data_size, GFP_KERNEL); |
| if (!fhandler->data) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for fhandler->data\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| return retval; |
| } |
| |
| static int synaptics_rmi4_f1a_alloc_mem(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| int retval; |
| struct synaptics_rmi4_f1a_handle *f1a; |
| |
| f1a = kzalloc(sizeof(*f1a), GFP_KERNEL); |
| if (!f1a) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for function handle\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| fhandler->data = (void *)f1a; |
| fhandler->extra = NULL; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.query_base, |
| f1a->button_query.data, |
| sizeof(f1a->button_query.data)); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read query registers\n", |
| __func__); |
| return retval; |
| } |
| |
| f1a->max_count = f1a->button_query.max_button_count + 1; |
| |
| f1a->button_control.txrx_map = kzalloc(f1a->max_count * 2, GFP_KERNEL); |
| if (!f1a->button_control.txrx_map) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for tx rx mapping\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| f1a->button_bitmask_size = (f1a->max_count + 7) / 8; |
| |
| f1a->button_data_buffer = kcalloc(f1a->button_bitmask_size, |
| sizeof(*(f1a->button_data_buffer)), GFP_KERNEL); |
| if (!f1a->button_data_buffer) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for data buffer\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| f1a->button_map = kcalloc(f1a->max_count, |
| sizeof(*(f1a->button_map)), GFP_KERNEL); |
| if (!f1a->button_map) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc mem for button map\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| return 0; |
| } |
| |
| static int synaptics_rmi4_f1a_button_map(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler) |
| { |
| int retval; |
| unsigned char ii; |
| unsigned char mapping_offset = 0; |
| struct synaptics_rmi4_f1a_handle *f1a = fhandler->data; |
| |
| mapping_offset = f1a->button_query.has_general_control + |
| f1a->button_query.has_interrupt_enable + |
| f1a->button_query.has_multibutton_select; |
| |
| if (f1a->button_query.has_tx_rx_map) { |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base + mapping_offset, |
| f1a->button_control.txrx_map, |
| sizeof(*(f1a->button_control.txrx_map))); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read tx rx mapping\n", |
| __func__); |
| return retval; |
| } |
| |
| rmi4_data->button_txrx_mapping = f1a->button_control.txrx_map; |
| } |
| |
| if (cap_button_map.map) { |
| if (cap_button_map.nbuttons != f1a->max_count) { |
| f1a->valid_button_count = min(f1a->max_count, |
| cap_button_map.nbuttons); |
| } else { |
| f1a->valid_button_count = f1a->max_count; |
| } |
| |
| for (ii = 0; ii < f1a->valid_button_count; ii++) |
| f1a->button_map[ii] = cap_button_map.map[ii]; |
| } |
| return 0; |
| } |
| |
| static void synaptics_rmi4_f1a_kfree(struct synaptics_rmi4_fn *fhandler) |
| { |
| struct synaptics_rmi4_f1a_handle *f1a = fhandler->data; |
| |
| if (f1a) { |
| kfree(f1a->button_control.txrx_map); |
| kfree(f1a->button_data_buffer); |
| kfree(f1a->button_map); |
| kfree(f1a); |
| fhandler->data = NULL; |
| } |
| |
| return; |
| } |
| |
| static int synaptics_rmi4_f1a_init(struct synaptics_rmi4_data *rmi4_data, |
| struct synaptics_rmi4_fn *fhandler, |
| struct synaptics_rmi4_fn_desc *fd, |
| unsigned int intr_count) |
| { |
| int retval; |
| |
| fhandler->fn_number = fd->fn_number; |
| fhandler->num_of_data_sources = fd->intr_src_count; |
| |
| synaptics_rmi4_set_intr_mask(fhandler, fd, intr_count); |
| |
| retval = synaptics_rmi4_f1a_alloc_mem(rmi4_data, fhandler); |
| if (retval < 0) |
| goto error_exit; |
| |
| retval = synaptics_rmi4_f1a_button_map(rmi4_data, fhandler); |
| if (retval < 0) |
| goto error_exit; |
| |
| rmi4_data->button_0d_enabled = 1; |
| |
| return 0; |
| |
| error_exit: |
| synaptics_rmi4_f1a_kfree(fhandler); |
| |
| return retval; |
| } |
| |
| static void synaptics_rmi4_empty_fn_list(struct synaptics_rmi4_data *rmi4_data) |
| { |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_fn *fhandler_temp; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| if (!list_empty(&rmi->support_fn_list)) { |
| list_for_each_entry_safe(fhandler, |
| fhandler_temp, |
| &rmi->support_fn_list, |
| link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F1A) { |
| synaptics_rmi4_f1a_kfree(fhandler); |
| } else { |
| kfree(fhandler->extra); |
| kfree(fhandler->data); |
| } |
| list_del(&fhandler->link); |
| kfree(fhandler); |
| } |
| } |
| INIT_LIST_HEAD(&rmi->support_fn_list); |
| |
| return; |
| } |
| |
| static int synaptics_rmi4_check_status(struct synaptics_rmi4_data *rmi4_data, |
| bool *was_in_bl_mode) |
| { |
| int retval; |
| int timeout = CHECK_STATUS_TIMEOUT_MS; |
| unsigned char command = 0x01; |
| unsigned char intr_status; |
| struct synaptics_rmi4_f01_device_status status; |
| |
| /* Do a device reset first */ |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| rmi4_data->f01_cmd_base_addr, |
| &command, |
| sizeof(command)); |
| if (retval < 0) |
| return retval; |
| |
| msleep(DELAY_UI_READY); |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_data_base_addr, |
| status.data, |
| sizeof(status.data)); |
| if (retval < 0) |
| return retval; |
| |
| while (status.status_code == STATUS_CRC_IN_PROGRESS) { |
| if (timeout > 0) |
| msleep(20); |
| else |
| return -1; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_data_base_addr, |
| status.data, |
| sizeof(status.data)); |
| if (retval < 0) |
| return retval; |
| |
| timeout -= 20; |
| } |
| |
| if (timeout != CHECK_STATUS_TIMEOUT_MS) |
| *was_in_bl_mode = true; |
| |
| if (status.flash_prog == 1) { |
| rmi4_data->flash_prog_mode = true; |
| pr_notice("%s: In flash prog mode, status = 0x%02x\n", |
| __func__, |
| status.status_code); |
| } else { |
| rmi4_data->flash_prog_mode = false; |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_data_base_addr + 1, |
| &intr_status, |
| sizeof(intr_status)); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read interrupt status\n", |
| __func__); |
| return retval; |
| } |
| |
| return 0; |
| } |
| |
| static void synaptics_rmi4_set_configured(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char device_ctrl; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr, |
| &device_ctrl, |
| sizeof(device_ctrl)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to set configured\n", |
| __func__); |
| return; |
| } |
| |
| rmi4_data->no_sleep_setting = device_ctrl & NO_SLEEP_ON; |
| device_ctrl |= CONFIGURED; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr, |
| &device_ctrl, |
| sizeof(device_ctrl)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to set configured\n", |
| __func__); |
| } |
| |
| return; |
| } |
| |
| static int synaptics_rmi4_alloc_fh(struct synaptics_rmi4_fn **fhandler, |
| struct synaptics_rmi4_fn_desc *rmi_fd, int page_number) |
| { |
| *fhandler = kmalloc(sizeof(**fhandler), GFP_KERNEL); |
| if (!(*fhandler)) |
| return -ENOMEM; |
| |
| (*fhandler)->full_addr.data_base = |
| (rmi_fd->data_base_addr | |
| (page_number << 8)); |
| (*fhandler)->full_addr.ctrl_base = |
| (rmi_fd->ctrl_base_addr | |
| (page_number << 8)); |
| (*fhandler)->full_addr.cmd_base = |
| (rmi_fd->cmd_base_addr | |
| (page_number << 8)); |
| (*fhandler)->full_addr.query_base = |
| (rmi_fd->query_base_addr | |
| (page_number << 8)); |
| |
| return 0; |
| } |
| |
| /** |
| * synaptics_rmi4_query_device() |
| * |
| * Called by synaptics_rmi4_probe(). |
| * |
| * This function scans the page description table, records the offsets |
| * to the register types of Function $01, sets up the function handlers |
| * for Function $11 and Function $12, determines the number of interrupt |
| * sources from the sensor, adds valid Functions with data inputs to the |
| * Function linked list, parses information from the query registers of |
| * Function $01, and enables the interrupt sources from the valid Functions |
| * with data inputs. |
| */ |
| static int synaptics_rmi4_query_device(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char ii; |
| unsigned char page_number; |
| unsigned char intr_count; |
| unsigned char f01_query[F01_STD_QUERY_LEN]; |
| unsigned short pdt_entry_addr; |
| unsigned short intr_addr; |
| bool was_in_bl_mode; |
| struct synaptics_rmi4_fn_desc rmi_fd; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| rescan_pdt: |
| was_in_bl_mode = false; |
| intr_count = 0; |
| INIT_LIST_HEAD(&rmi->support_fn_list); |
| |
| /* Scan the page description tables of the pages to service */ |
| for (page_number = 0; page_number < PAGES_TO_SERVICE; page_number++) { |
| for (pdt_entry_addr = PDT_START; pdt_entry_addr > PDT_END; |
| pdt_entry_addr -= PDT_ENTRY_SIZE) { |
| pdt_entry_addr |= (page_number << 8); |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| pdt_entry_addr, |
| (unsigned char *)&rmi_fd, |
| sizeof(rmi_fd)); |
| if (retval < 0) |
| return retval; |
| |
| fhandler = NULL; |
| |
| if (rmi_fd.fn_number == 0) { |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Reached end of PDT\n", |
| __func__); |
| break; |
| } |
| |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: F%02x found (page %d)\n", |
| __func__, rmi_fd.fn_number, |
| page_number); |
| |
| switch (rmi_fd.fn_number) { |
| case SYNAPTICS_RMI4_F01: |
| if (rmi_fd.intr_src_count == 0) |
| break; |
| |
| retval = synaptics_rmi4_alloc_fh(&fhandler, |
| &rmi_fd, page_number); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc for F%d\n", |
| __func__, |
| rmi_fd.fn_number); |
| return retval; |
| } |
| |
| retval = synaptics_rmi4_f01_init(rmi4_data, |
| fhandler, &rmi_fd, intr_count); |
| if (retval < 0) { |
| kfree(fhandler); |
| fhandler = NULL; |
| return retval; |
| } |
| |
| retval = synaptics_rmi4_check_status(rmi4_data, |
| &was_in_bl_mode); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to check status\n", |
| __func__); |
| kfree(fhandler); |
| fhandler = NULL; |
| return retval; |
| } |
| |
| if (was_in_bl_mode) { |
| kfree(fhandler); |
| fhandler = NULL; |
| goto rescan_pdt; |
| } |
| |
| if (rmi4_data->flash_prog_mode) { |
| kfree(fhandler); |
| fhandler = NULL; |
| goto flash_prog_mode; |
| } |
| |
| break; |
| case SYNAPTICS_RMI4_F11: |
| if (rmi_fd.intr_src_count == 0) |
| break; |
| |
| retval = synaptics_rmi4_alloc_fh(&fhandler, |
| &rmi_fd, page_number); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc for F%d\n", |
| __func__, |
| rmi_fd.fn_number); |
| return retval; |
| } |
| |
| retval = synaptics_rmi4_f11_init(rmi4_data, |
| fhandler, &rmi_fd, intr_count); |
| if (retval < 0) { |
| kfree(fhandler); |
| fhandler = NULL; |
| return retval; |
| } |
| |
| break; |
| case SYNAPTICS_RMI4_F12: |
| if (rmi_fd.intr_src_count == 0) |
| break; |
| |
| retval = synaptics_rmi4_alloc_fh(&fhandler, |
| &rmi_fd, page_number); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc for F%d\n", |
| __func__, |
| rmi_fd.fn_number); |
| return retval; |
| } |
| |
| retval = synaptics_rmi4_f12_init(rmi4_data, |
| fhandler, &rmi_fd, intr_count); |
| if (retval < 0) { |
| kfree(fhandler); |
| fhandler = NULL; |
| return retval; |
| } |
| |
| break; |
| case SYNAPTICS_RMI4_F1A: |
| if (rmi_fd.intr_src_count == 0) |
| break; |
| |
| retval = synaptics_rmi4_alloc_fh(&fhandler, |
| &rmi_fd, page_number); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to alloc for F%d\n", |
| __func__, |
| rmi_fd.fn_number); |
| return retval; |
| } |
| |
| retval = synaptics_rmi4_f1a_init(rmi4_data, |
| fhandler, &rmi_fd, intr_count); |
| if (retval < 0) { |
| kfree(fhandler); |
| fhandler = NULL; |
| return retval; |
| } |
| |
| break; |
| } |
| |
| /* Accumulate the interrupt count */ |
| intr_count += (rmi_fd.intr_src_count & MASK_3BIT); |
| |
| if (fhandler && rmi_fd.intr_src_count) { |
| list_add_tail(&fhandler->link, |
| &rmi->support_fn_list); |
| } |
| } |
| } |
| |
| flash_prog_mode: |
| rmi4_data->num_of_intr_regs = (intr_count + 7) / 8; |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Number of interrupt registers = %d\n", |
| __func__, rmi4_data->num_of_intr_regs); |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_query_base_addr, |
| f01_query, |
| sizeof(f01_query)); |
| if (retval < 0) |
| return retval; |
| |
| /* RMI Version 4.0 currently supported */ |
| rmi->version_major = 4; |
| rmi->version_minor = 0; |
| |
| rmi->manufacturer_id = f01_query[0]; |
| rmi->product_props = f01_query[1]; |
| rmi->product_info[0] = f01_query[2] & MASK_7BIT; |
| rmi->product_info[1] = f01_query[3] & MASK_7BIT; |
| rmi->date_code[0] = f01_query[4] & MASK_5BIT; |
| rmi->date_code[1] = f01_query[5] & MASK_4BIT; |
| rmi->date_code[2] = f01_query[6] & MASK_5BIT; |
| rmi->tester_id = ((f01_query[7] & MASK_7BIT) << 8) | |
| (f01_query[8] & MASK_7BIT); |
| rmi->serial_number = ((f01_query[9] & MASK_7BIT) << 8) | |
| (f01_query[10] & MASK_7BIT); |
| memcpy(rmi->product_id_string, &f01_query[11], 10); |
| |
| if (rmi->manufacturer_id != 1) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Non-Synaptics device found, manufacturer ID = %d\n", |
| __func__, rmi->manufacturer_id); |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_query_base_addr + F01_BUID_ID_OFFSET, |
| rmi->build_id, |
| sizeof(rmi->build_id)); |
| if (retval < 0) |
| return retval; |
| |
| rmi4_data->firmware_id = (unsigned int)rmi->build_id[0] + |
| (unsigned int)rmi->build_id[1] * 0x100 + |
| (unsigned int)rmi->build_id[2] * 0x10000; |
| |
| memset(rmi4_data->intr_mask, 0x00, sizeof(rmi4_data->intr_mask)); |
| |
| /* |
| * Map out the interrupt bit masks for the interrupt sources |
| * from the registered function handlers. |
| */ |
| if (!list_empty(&rmi->support_fn_list)) { |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->num_of_data_sources) { |
| rmi4_data->intr_mask[fhandler->intr_reg_num] |= |
| fhandler->intr_mask; |
| } |
| } |
| } |
| |
| if (rmi4_data->f11_wakeup_gesture || rmi4_data->f12_wakeup_gesture) |
| rmi4_data->enable_wakeup_gesture = WAKEUP_GESTURE; |
| else |
| rmi4_data->enable_wakeup_gesture = false; |
| |
| /* Enable the interrupt sources */ |
| for (ii = 0; ii < rmi4_data->num_of_intr_regs; ii++) { |
| if (rmi4_data->intr_mask[ii] != 0x00) { |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Interrupt enable mask %d = 0x%02x\n", |
| __func__, ii, rmi4_data->intr_mask[ii]); |
| intr_addr = rmi4_data->f01_ctrl_base_addr + 1 + ii; |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| intr_addr, |
| &(rmi4_data->intr_mask[ii]), |
| sizeof(rmi4_data->intr_mask[ii])); |
| if (retval < 0) |
| return retval; |
| } |
| } |
| |
| synaptics_rmi4_set_configured(rmi4_data); |
| |
| return 0; |
| } |
| |
| static void synaptics_rmi4_set_params(struct synaptics_rmi4_data *rmi4_data) |
| { |
| unsigned char ii; |
| struct synaptics_rmi4_f1a_handle *f1a; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| input_set_abs_params(rmi4_data->input_dev, |
| ABS_MT_POSITION_X, 0, |
| rmi4_data->sensor_max_x, 0, 0); |
| input_set_abs_params(rmi4_data->input_dev, |
| ABS_MT_POSITION_Y, 0, |
| rmi4_data->sensor_max_y, 0, 0); |
| #ifdef REPORT_2D_W |
| input_set_abs_params(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MAJOR, 0, |
| rmi4_data->max_touch_width, 0, 0); |
| input_set_abs_params(rmi4_data->input_dev, |
| ABS_MT_TOUCH_MINOR, 0, |
| rmi4_data->max_touch_width, 0, 0); |
| #endif |
| |
| #ifdef TYPE_B_PROTOCOL |
| input_mt_init_slots(rmi4_data->input_dev, |
| rmi4_data->num_of_fingers, 0); |
| #endif |
| |
| f1a = NULL; |
| if (!list_empty(&rmi->support_fn_list)) { |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F1A) |
| f1a = fhandler->data; |
| } |
| } |
| |
| if (f1a) { |
| for (ii = 0; ii < f1a->valid_button_count; ii++) { |
| set_bit(f1a->button_map[ii], |
| rmi4_data->input_dev->keybit); |
| input_set_capability(rmi4_data->input_dev, |
| EV_KEY, f1a->button_map[ii]); |
| } |
| } |
| |
| if (rmi4_data->f11_wakeup_gesture || rmi4_data->f12_wakeup_gesture) { |
| set_bit(KEY_POWER, rmi4_data->input_dev->keybit); |
| input_set_capability(rmi4_data->input_dev, EV_KEY, KEY_POWER); |
| } |
| return; |
| } |
| |
| static int synaptics_rmi4_set_input_dev(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| |
| rmi4_data->input_dev = input_allocate_device(); |
| if (rmi4_data->input_dev == NULL) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to allocate input device\n", |
| __func__); |
| retval = -ENOMEM; |
| goto err_input_device; |
| } |
| |
| retval = synaptics_rmi4_query_device(rmi4_data); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to query device\n", |
| __func__); |
| goto err_query_device; |
| } |
| |
| rmi4_data->input_dev->name = DRIVER_NAME; |
| rmi4_data->input_dev->phys = INPUT_PHYS_NAME; |
| rmi4_data->input_dev->id.product = SYNAPTICS_DSX_DRIVER_PRODUCT; |
| rmi4_data->input_dev->id.version = SYNAPTICS_DSX_DRIVER_VERSION; |
| rmi4_data->input_dev->id.bustype = BUS_I2C; |
| rmi4_data->input_dev->dev.parent = &rmi4_data->i2c_client->dev; |
| input_set_drvdata(rmi4_data->input_dev, rmi4_data); |
| |
| set_bit(EV_SYN, rmi4_data->input_dev->evbit); |
| set_bit(EV_KEY, rmi4_data->input_dev->evbit); |
| set_bit(EV_ABS, rmi4_data->input_dev->evbit); |
| set_bit(BTN_TOUCH, rmi4_data->input_dev->keybit); |
| set_bit(BTN_TOOL_FINGER, rmi4_data->input_dev->keybit); |
| #ifdef INPUT_PROP_DIRECT |
| set_bit(INPUT_PROP_DIRECT, rmi4_data->input_dev->propbit); |
| #endif |
| |
| synaptics_rmi4_set_params(rmi4_data); |
| |
| retval = input_register_device(rmi4_data->input_dev); |
| if (retval) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to register input device\n", |
| __func__); |
| goto err_register_input; |
| } |
| |
| return 0; |
| |
| err_register_input: |
| err_query_device: |
| synaptics_rmi4_empty_fn_list(rmi4_data); |
| input_free_device(rmi4_data->input_dev); |
| |
| err_input_device: |
| return retval; |
| } |
| |
| static int synaptics_rmi4_free_fingers(struct synaptics_rmi4_data *rmi4_data) |
| { |
| unsigned char ii; |
| mutex_lock(&rmi4_report_mutex); |
| |
| #ifdef TYPE_B_PROTOCOL |
| for (ii = 0; ii < rmi4_data->num_of_fingers; ii++) { |
| input_mt_slot(rmi4_data->input_dev, ii); |
| input_mt_report_slot_state(rmi4_data->input_dev, |
| MT_TOOL_FINGER, 0); |
| } |
| #endif |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOUCH, 0); |
| input_report_key(rmi4_data->input_dev, |
| BTN_TOOL_FINGER, 0); |
| #ifndef TYPE_B_PROTOCOL |
| input_mt_sync(rmi4_data->input_dev); |
| #endif |
| input_sync(rmi4_data->input_dev); |
| mutex_unlock(&rmi4_report_mutex); |
| rmi4_data->fingers_on_2d = false; |
| |
| return 0; |
| } |
| |
| static int synaptics_rmi4_reinit_device(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char ii; |
| unsigned short intr_addr; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| mutex_lock(&(rmi4_data->rmi4_reset_mutex)); |
| |
| synaptics_rmi4_free_fingers(rmi4_data); |
| |
| if (!list_empty(&rmi->support_fn_list)) { |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F12) { |
| synaptics_rmi4_f12_set_enables(rmi4_data, 0); |
| break; |
| } |
| } |
| } |
| |
| for (ii = 0; ii < rmi4_data->num_of_intr_regs; ii++) { |
| if (rmi4_data->intr_mask[ii] != 0x00) { |
| dev_dbg(&rmi4_data->i2c_client->dev, |
| "%s: Interrupt enable mask %d = 0x%02x\n", |
| __func__, ii, rmi4_data->intr_mask[ii]); |
| intr_addr = rmi4_data->f01_ctrl_base_addr + 1 + ii; |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| intr_addr, |
| &(rmi4_data->intr_mask[ii]), |
| sizeof(rmi4_data->intr_mask[ii])); |
| if (retval < 0) |
| goto exit; |
| } |
| } |
| |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) |
| if (exp_fhandler->exp_fn->reinit != NULL) |
| exp_fhandler->exp_fn->reinit(rmi4_data); |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| synaptics_rmi4_set_configured(rmi4_data); |
| |
| retval = 0; |
| |
| exit: |
| mutex_unlock(&(rmi4_data->rmi4_reset_mutex)); |
| return retval; |
| } |
| |
| static int synaptics_rmi4_reset_device(struct synaptics_rmi4_data *rmi4_data) |
| { |
| int retval; |
| unsigned char command = 0x01; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| |
| mutex_lock(&(rmi4_data->rmi4_reset_mutex)); |
| |
| rmi4_data->touch_stopped = true; |
| |
| synaptics_rmi4_irq_enable(rmi4_data, false); |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| rmi4_data->f01_cmd_base_addr, |
| &command, |
| sizeof(command)); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to issue reset command, error = %d\n", |
| __func__, retval); |
| mutex_unlock(&(rmi4_data->rmi4_reset_mutex)); |
| return retval; |
| } |
| |
| msleep(DELAY_UI_READY); |
| |
| synaptics_rmi4_free_fingers(rmi4_data); |
| |
| synaptics_rmi4_empty_fn_list(rmi4_data); |
| |
| retval = synaptics_rmi4_query_device(rmi4_data); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to query device\n", |
| __func__); |
| mutex_unlock(&(rmi4_data->rmi4_reset_mutex)); |
| return retval; |
| } |
| |
| synaptics_rmi4_set_params(rmi4_data); |
| |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) |
| if (exp_fhandler->exp_fn->reset != NULL) |
| exp_fhandler->exp_fn->reset(rmi4_data); |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| rmi4_data->touch_stopped = false; |
| |
| synaptics_rmi4_irq_enable(rmi4_data, true); |
| |
| mutex_unlock(&(rmi4_data->rmi4_reset_mutex)); |
| |
| return 0; |
| } |
| |
| |
| static void synaptics_rmi4_sleep_enable(struct synaptics_rmi4_data *rmi4_data, |
| bool enable) |
| { |
| int retval; |
| unsigned char device_ctrl; |
| unsigned char no_sleep_setting = rmi4_data->no_sleep_setting; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr, |
| &device_ctrl, |
| sizeof(device_ctrl)); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to read device control\n", |
| __func__); |
| return; |
| } |
| |
| device_ctrl = device_ctrl & ~MASK_3BIT; |
| if (enable) |
| device_ctrl = device_ctrl | NO_SLEEP_OFF | SENSOR_SLEEP; |
| else |
| device_ctrl = device_ctrl | no_sleep_setting | NORMAL_OPERATION; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| rmi4_data->f01_ctrl_base_addr, |
| &device_ctrl, |
| sizeof(device_ctrl)); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to write device control\n", |
| __func__); |
| return; |
| } |
| |
| rmi4_data->sensor_sleep = enable; |
| |
| return; |
| } |
| |
| |
| |
| |
| /** |
| * synaptics_rmi4_exp_fn_work() |
| * |
| * Called by the kernel at the scheduled time. |
| * |
| * This function is a work thread that checks for the insertion and |
| * removal of other expansion Function modules such as rmi_dev and calls |
| * their initialization and removal callback functions accordingly. |
| */ |
| static void synaptics_rmi4_exp_fn_work(struct work_struct *work) |
| { |
| int retval; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler_temp; |
| struct synaptics_rmi4_data *rmi4_data = exp_data.rmi4_data; |
| |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry_safe(exp_fhandler, |
| exp_fhandler_temp, |
| &exp_data.list, |
| link) { |
| if ((exp_fhandler->exp_fn->init != NULL) && |
| exp_fhandler->insert) { |
| retval = exp_fhandler->exp_fn->init(rmi4_data); |
| if (retval < 0) { |
| list_del(&exp_fhandler->link); |
| kfree(exp_fhandler); |
| } else { |
| exp_fhandler->insert = false; |
| } |
| } else if ((exp_fhandler->exp_fn->remove != NULL) && |
| exp_fhandler->remove) { |
| exp_fhandler->exp_fn->remove(rmi4_data); |
| list_del(&exp_fhandler->link); |
| kfree(exp_fhandler); |
| } |
| } |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| return; |
| } |
| |
| /** |
| * synaptics_rmi4_new_function() |
| * |
| * Called by other expansion Function modules in their module init and |
| * module exit functions. |
| * |
| * This function is used by other expansion Function modules such as |
| * rmi_dev to register themselves with the driver by providing their |
| * initialization and removal callback function pointers so that they |
| * can be inserted or removed dynamically at module init and exit times, |
| * respectively. |
| */ |
| void synaptics_rmi4_new_function(struct synaptics_rmi4_exp_fn *exp_fn, |
| bool insert) |
| { |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| |
| if (!exp_data.initialized) { |
| mutex_init(&exp_data.mutex); |
| INIT_LIST_HEAD(&exp_data.list); |
| exp_data.initialized = true; |
| } |
| |
| mutex_lock(&exp_data.mutex); |
| if (insert) { |
| exp_fhandler = kzalloc(sizeof(*exp_fhandler), GFP_KERNEL); |
| if (!exp_fhandler) { |
| pr_err("%s: Failed to alloc mem for expansion function\n", |
| __func__); |
| goto exit; |
| } |
| exp_fhandler->exp_fn = exp_fn; |
| exp_fhandler->insert = true; |
| exp_fhandler->remove = false; |
| list_add_tail(&exp_fhandler->link, &exp_data.list); |
| } else if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) { |
| if (exp_fhandler->exp_fn->fn_type == exp_fn->fn_type) { |
| exp_fhandler->insert = false; |
| exp_fhandler->remove = true; |
| goto exit; |
| } |
| } |
| } |
| |
| exit: |
| mutex_unlock(&exp_data.mutex); |
| |
| if (exp_data.queue_work) { |
| queue_delayed_work(exp_data.workqueue, |
| &exp_data.work, |
| msecs_to_jiffies(EXP_FN_WORK_DELAY_MS)); |
| } |
| |
| return; |
| } |
| EXPORT_SYMBOL(synaptics_rmi4_new_function); |
| |
| |
| static ssize_t synaptics_rmi4_f34_configid_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "0x%x\n", rmi4_data->config_id); |
| } |
| |
| |
| |
| static ssize_t synaptics_rmi4_f01_product_id_show(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", |
| (rmi4_data->rmi4_mod_info.product_id_string)); |
| } |
| |
| |
| static DEVICE_ATTR(tp_firmware_version, 0664, synaptics_rmi4_f34_configid_show, synaptics_rmi4_store_error); |
| static DEVICE_ATTR(product_id, 0664, synaptics_rmi4_f01_product_id_show, synaptics_rmi4_store_error); |
| |
| static struct attribute *synaptics_rmi4_attrs[] = { |
| attrify(tp_firmware_version), |
| attrify(product_id), |
| NULL, |
| }; |
| |
| static struct attribute_group attr_group = { |
| .attrs = synaptics_rmi4_attrs, |
| }; |
| /** |
| * synaptics_rmi4_probe() |
| * |
| * Called by the kernel when an association with an I2C device of the |
| * same name is made (after doing i2c_add_driver). |
| * |
| * This function allocates and initializes the resources for the driver |
| * as an input driver, turns on the power to the sensor, queries the |
| * sensor for its supported Functions and characteristics, registers |
| * the driver to the input subsystem, sets up the interrupt, handles |
| * the registration of the early_suspend and late_resume functions, |
| * and creates a work queue for detection of other expansion Function |
| * modules. |
| */ |
| static int synaptics_rmi4_probe(struct i2c_client *client, |
| const struct i2c_device_id *dev_id) |
| { |
| int retval, ret; |
| signed char attr_count; |
| struct synaptics_rmi4_data *rmi4_data; |
| struct device_node *np = client->dev.of_node; |
| #if 0 |
| int rst_gpio; |
| #endif |
| |
| if (!i2c_check_functionality(client->adapter, |
| I2C_FUNC_SMBUS_BYTE_DATA)) { |
| dev_err(&client->dev, |
| "%s: SMBus byte data not supported\n", |
| __func__); |
| return -EIO; |
| } |
| |
| #ifdef USE_I2C_DMA |
| wDMABuf_va = (unsigned char *)dma_zalloc_coherent(&client->dev, WRITE_SIZE_LIMIT, |
| &wDMABuf_pa, GFP_KERNEL); |
| if (!wDMABuf_va) { |
| dev_err(&client->dev, "Allocate DMA I2C Buffer failed, exit\n"); |
| return -ENOMEM; |
| } |
| #endif |
| |
| if (!np) |
| return -ENODEV; |
| #if 0 |
| rst_gpio = of_get_named_gpio(np, "rest-gpios", 0); |
| if (!gpio_is_valid(rst_gpio)) |
| return -ENODEV; |
| |
| ret = gpio_request(rst_gpio, "synaptics_rmi4_rest"); |
| if (ret < 0) { |
| dev_err(&client->dev, |
| "request rest gpio failed, cannot wake up controller: %d\n", |
| ret); |
| return ret; |
| } |
| |
| gpio_direction_output(rst_gpio, 0); |
| gpio_set_value(rst_gpio, 1); |
| msleep(DELAY_BOOT_READY); |
| gpio_set_value(rst_gpio, 0); |
| msleep(DELAY_RESET_LOW); |
| gpio_set_value(rst_gpio, 1); |
| msleep(DELAY_UI_READY); |
| #endif |
| |
| rmi4_data = kzalloc(sizeof(*rmi4_data), GFP_KERNEL); |
| if (!rmi4_data) { |
| dev_err(&client->dev, |
| "%s: Failed to alloc mem for rmi4_data\n", |
| __func__); |
| return -ENOMEM; |
| } |
| |
| rmi4_data->i2c_client = client; |
| rmi4_data->current_page = MASK_8BIT; |
| rmi4_data->touch_stopped = false; |
| rmi4_data->sensor_sleep = false; |
| rmi4_data->irq_enabled = false; |
| rmi4_data->fingers_on_2d = false; |
| |
| rmi4_data->i2c_read = synaptics_rmi4_i2c_read; |
| rmi4_data->i2c_write = synaptics_rmi4_i2c_write; |
| rmi4_data->irq_enable = synaptics_rmi4_irq_enable; |
| rmi4_data->reset_device = synaptics_rmi4_reset_device; |
| rmi4_data->sleep_enable = synaptics_rmi4_sleep_enable; |
| |
| rmi4_data->i2c_addr = client->addr; |
| rmi4_data->diagonal_rotation = of_property_read_bool(np, |
| "synaptics,diagonal-rotation"); |
| |
| mutex_init(&(rmi4_data->rmi4_io_ctrl_mutex)); |
| mutex_init(&(rmi4_data->rmi4_reset_mutex)); |
| mutex_init(&(rmi4_data->rmi4_exp_init_mutex)); |
| |
| i2c_set_clientdata(client, rmi4_data); |
| retval = synaptics_rmi4_set_input_dev(rmi4_data); |
| if (retval < 0) { |
| dev_err(&client->dev, |
| "%s: Failed to set up input device\n", |
| __func__); |
| goto err_set_input_dev; |
| } |
| |
| thread = kthread_run(touch_event_handler, rmi4_data, "synaptics_dsx"); |
| if (IS_ERR(thread)) { |
| retval = PTR_ERR(thread); |
| pr_err(" %s: failed to create kernel thread: %d\n", __func__, retval); |
| } |
| |
| touch_irq = client->irq; |
| ret = devm_request_irq(&client->dev, touch_irq, (irq_handler_t) tpd_eint_handler, |
| IRQF_TRIGGER_LOW, "synaptics_rmi4_touch", rmi4_data); |
| if (ret < 0) { |
| dev_err(&client->dev, |
| "%s: Failed to register attention interrupt\n", |
| __func__); |
| goto err_enable_irq; |
| } |
| rmi4_data->irq_enabled = true; |
| |
| if (!exp_data.initialized) { |
| mutex_init(&exp_data.mutex); |
| INIT_LIST_HEAD(&exp_data.list); |
| exp_data.initialized = true; |
| } |
| |
| |
| exp_data.workqueue = create_singlethread_workqueue("dsx_exp_workqueue"); |
| INIT_DELAYED_WORK(&exp_data.work, synaptics_rmi4_exp_fn_work); |
| exp_data.rmi4_data = rmi4_data; |
| exp_data.queue_work = true; |
| queue_delayed_work(exp_data.workqueue, |
| &exp_data.work, |
| msecs_to_jiffies(EXP_FN_WORK_DELAY_MS)); |
| |
| for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) { |
| retval = sysfs_create_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| if (retval < 0) { |
| dev_err(&client->dev, |
| "%s: Failed to create sysfs attributes\n", |
| __func__); |
| goto err_sysfs; |
| } |
| } |
| |
| retval = sysfs_create_group(&client->dev.kobj, &attr_group); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to create sysfs attributes\n", |
| __func__); |
| goto err_sysfs; |
| } |
| |
| g_dev = &rmi4_data->input_dev->dev; |
| |
| return retval; |
| |
| err_sysfs: |
| sysfs_remove_group(&client->dev.kobj, &attr_group); |
| for (attr_count--; attr_count >= 0; attr_count--) { |
| sysfs_remove_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| } |
| |
| cancel_delayed_work_sync(&exp_data.work); |
| flush_workqueue(exp_data.workqueue); |
| destroy_workqueue(exp_data.workqueue); |
| |
| synaptics_rmi4_irq_enable(rmi4_data, false); |
| |
| err_enable_irq: |
| |
| synaptics_rmi4_empty_fn_list(rmi4_data); |
| input_unregister_device(rmi4_data->input_dev); |
| rmi4_data->input_dev = NULL; |
| |
| err_set_input_dev: |
| kfree(rmi4_data); |
| |
| return retval; |
| } |
| |
| /** |
| * synaptics_rmi4_remove() |
| * |
| * Called by the kernel when the association with an I2C device of the |
| * same name is broken (when the driver is unloaded). |
| * |
| * This function terminates the work queue, stops sensor data acquisition, |
| * frees the interrupt, unregisters the driver from the input subsystem, |
| * turns off the power to the sensor, and frees other allocated resources. |
| */ |
| static int synaptics_rmi4_remove(struct i2c_client *client) |
| { |
| unsigned char attr_count; |
| struct synaptics_rmi4_data *rmi4_data = i2c_get_clientdata(client); |
| |
| for (attr_count = 0; attr_count < ARRAY_SIZE(attrs); attr_count++) { |
| sysfs_remove_file(&rmi4_data->input_dev->dev.kobj, |
| &attrs[attr_count].attr); |
| } |
| |
| cancel_delayed_work_sync(&exp_data.work); |
| flush_workqueue(exp_data.workqueue); |
| destroy_workqueue(exp_data.workqueue); |
| |
| synaptics_rmi4_irq_enable(rmi4_data, false); |
| |
| synaptics_rmi4_empty_fn_list(rmi4_data); |
| input_unregister_device(rmi4_data->input_dev); |
| rmi4_data->input_dev = NULL; |
| |
| #ifdef USE_I2C_DMA |
| if (wDMABuf_va) |
| dma_free_coherent(&client->dev, WRITE_SIZE_LIMIT, wDMABuf_va, wDMABuf_pa); |
| #endif |
| |
| kfree(rmi4_data); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static void synaptics_rmi4_f11_wg(struct synaptics_rmi4_data *rmi4_data, |
| bool enable) |
| { |
| int retval; |
| unsigned char reporting_control; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F11) |
| break; |
| } |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base, |
| &reporting_control, |
| sizeof(reporting_control)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to change reporting mode\n", |
| __func__); |
| return; |
| } |
| |
| reporting_control = (reporting_control & ~MASK_3BIT); |
| if (enable) |
| reporting_control |= F11_WAKEUP_GESTURE_MODE; |
| else |
| reporting_control |= F11_CONTINUOUS_MODE; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| fhandler->full_addr.ctrl_base, |
| &reporting_control, |
| sizeof(reporting_control)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to change reporting mode\n", |
| __func__); |
| return; |
| } |
| |
| return; |
| } |
| |
| static void synaptics_rmi4_f12_wg(struct synaptics_rmi4_data *rmi4_data, |
| bool enable) |
| { |
| int retval; |
| unsigned char offset; |
| unsigned char reporting_control[3]; |
| struct synaptics_rmi4_f12_extra_data *extra_data; |
| struct synaptics_rmi4_fn *fhandler; |
| struct synaptics_rmi4_device_info *rmi; |
| |
| rmi = &(rmi4_data->rmi4_mod_info); |
| |
| list_for_each_entry(fhandler, &rmi->support_fn_list, link) { |
| if (fhandler->fn_number == SYNAPTICS_RMI4_F12) |
| break; |
| } |
| |
| extra_data = (struct synaptics_rmi4_f12_extra_data *)fhandler->extra; |
| offset = extra_data->ctrl20_offset; |
| |
| retval = synaptics_rmi4_i2c_read(rmi4_data, |
| fhandler->full_addr.ctrl_base + offset, |
| reporting_control, |
| sizeof(reporting_control)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to change reporting mode\n", |
| __func__); |
| return; |
| } |
| |
| if (enable) |
| reporting_control[2] = F12_WAKEUP_GESTURE_MODE; |
| else |
| reporting_control[2] = F12_CONTINUOUS_MODE; |
| |
| retval = synaptics_rmi4_i2c_write(rmi4_data, |
| fhandler->full_addr.ctrl_base + offset, |
| reporting_control, |
| sizeof(reporting_control)); |
| if (retval < 0) { |
| dev_err(&(rmi4_data->input_dev->dev), |
| "%s: Failed to change reporting mode\n", |
| __func__); |
| return; |
| } |
| |
| return; |
| } |
| |
| static void synaptics_rmi4_wakeup_gesture(struct synaptics_rmi4_data *rmi4_data, |
| bool enable) |
| { |
| if (rmi4_data->f11_wakeup_gesture) |
| synaptics_rmi4_f11_wg(rmi4_data, enable); |
| else if (rmi4_data->f12_wakeup_gesture) |
| synaptics_rmi4_f12_wg(rmi4_data, enable); |
| |
| return; |
| } |
| |
| /** |
| * synaptics_rmi4_suspend() |
| * |
| * Called by the kernel during the suspend phase when the system |
| * enters suspend. |
| * |
| * This function stops finger data acquisition and puts the sensor to |
| * sleep (if not already done so during the early suspend phase), |
| * disables the interrupt, and turns off the power to the sensor. |
| */ |
| static int __maybe_unused synaptics_rmi4_suspend(struct device *dev) |
| { |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(g_dev); |
| |
| if (rmi4_data->staying_awake) |
| return 0; |
| |
| if (rmi4_data->enable_wakeup_gesture) { |
| synaptics_rmi4_wakeup_gesture(rmi4_data, true); |
| goto exit; |
| } |
| |
| if (!rmi4_data->sensor_sleep) { |
| rmi4_data->touch_stopped = true; |
| synaptics_rmi4_sleep_enable(rmi4_data, true); |
| synaptics_rmi4_free_fingers(rmi4_data); |
| rmi4_data->irq_enabled = false; |
| free_irq(touch_irq, rmi4_data); |
| } |
| |
| exit: |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) |
| if (exp_fhandler->exp_fn->suspend != NULL) |
| exp_fhandler->exp_fn->suspend(rmi4_data); |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| |
| rmi4_data->sensor_sleep = true; |
| |
| return 0; |
| } |
| |
| /** |
| * synaptics_rmi4_resume() |
| * |
| * Called by the kernel during the resume phase when the system |
| * wakes up from suspend. |
| * |
| * This function turns on the power to the sensor, wakes the sensor |
| * from sleep, enables the interrupt, and starts finger data |
| * acquisition. |
| */ |
| static int __maybe_unused synaptics_rmi4_resume(struct device *dev) |
| { |
| int retval; |
| struct synaptics_rmi4_exp_fhandler *exp_fhandler; |
| struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(g_dev); |
| |
| if (rmi4_data->staying_awake) |
| return 0; |
| |
| if (rmi4_data->enable_wakeup_gesture) { |
| synaptics_rmi4_wakeup_gesture(rmi4_data, false); |
| goto exit; |
| } |
| |
| retval = devm_request_irq(dev, touch_irq, (irq_handler_t) tpd_eint_handler, |
| IRQF_TRIGGER_LOW, "synaptics_rmi4_touch", rmi4_data); |
| rmi4_data->irq_enabled = true; |
| |
| synaptics_rmi4_sleep_enable(rmi4_data, false); |
| retval = synaptics_rmi4_reinit_device(rmi4_data); |
| if (retval < 0) { |
| dev_err(&rmi4_data->i2c_client->dev, |
| "%s: Failed to reinit device\n", |
| __func__); |
| return 0; |
| } |
| exit: |
| mutex_lock(&exp_data.mutex); |
| if (!list_empty(&exp_data.list)) { |
| list_for_each_entry(exp_fhandler, &exp_data.list, link) |
| if (exp_fhandler->exp_fn->resume != NULL) |
| exp_fhandler->exp_fn->resume(rmi4_data); |
| } |
| mutex_unlock(&exp_data.mutex); |
| |
| |
| rmi4_data->sensor_sleep = false; |
| rmi4_data->touch_stopped = false; |
| |
| return 0; |
| } |
| |
| #endif |
| |
| static const struct i2c_device_id synaptics_rmi4_id_table[] = { |
| {"synaptics_dsx", 0}, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(i2c, synaptics_rmi4_id_table); |
| |
| static SIMPLE_DEV_PM_OPS(synaptics_rmi4_pm_ops, synaptics_rmi4_suspend, synaptics_rmi4_resume); |
| |
| |
| static const struct of_device_id synaptics_rmi4_dt_ids[] = { |
| { .compatible = "synaptics_dsx" }, |
| { /* sentinel */}, |
| }; |
| |
| static struct i2c_driver synaptics_rmi4_driver = { |
| .driver = { |
| .name = "synaptics_dsx", |
| .pm = &synaptics_rmi4_pm_ops, |
| .of_match_table = synaptics_rmi4_dt_ids, |
| }, |
| .id_table = synaptics_rmi4_id_table, |
| .probe = synaptics_rmi4_probe, |
| .remove = synaptics_rmi4_remove, |
| }; |
| |
| module_i2c_driver(synaptics_rmi4_driver); |
| |
| MODULE_AUTHOR("Synaptics, Inc."); |
| MODULE_DESCRIPTION("Synaptics DSX I2C Touch Driver"); |
| MODULE_LICENSE("GPL v2"); |