| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dudley Du | 12424 | 99.03% | 12 | 75.00% |
| Dmitry Torokhov | 117 | 0.93% | 1 | 6.25% |
| Shailendra Verma | 3 | 0.02% | 1 | 6.25% |
| Gustavo A. R. Silva | 1 | 0.01% | 1 | 6.25% |
| Geert Uytterhoeven | 1 | 0.01% | 1 | 6.25% |
| Total | 12546 | 16 |
/* * Cypress APA trackpad with I2C interface * * Author: Dudley Du <dudl@cypress.com> * * Copyright (C) 2014-2015 Cypress Semiconductor, Inc. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/input.h> #include <linux/input/mt.h> #include <linux/mutex.h> #include <linux/completion.h> #include <linux/slab.h> #include <asm/unaligned.h> #include <linux/crc-itu-t.h> #include <linux/pm_runtime.h> #include "cyapa.h" /* Macro of TSG firmware image */ #define CYAPA_TSG_FLASH_MAP_BLOCK_SIZE 0x80 #define CYAPA_TSG_IMG_FW_HDR_SIZE 13 #define CYAPA_TSG_FW_ROW_SIZE (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE) #define CYAPA_TSG_IMG_START_ROW_NUM 0x002e #define CYAPA_TSG_IMG_END_ROW_NUM 0x01fe #define CYAPA_TSG_IMG_APP_INTEGRITY_ROW_NUM 0x01ff #define CYAPA_TSG_IMG_MAX_RECORDS (CYAPA_TSG_IMG_END_ROW_NUM - \ CYAPA_TSG_IMG_START_ROW_NUM + 1 + 1) #define CYAPA_TSG_IMG_READ_SIZE (CYAPA_TSG_FLASH_MAP_BLOCK_SIZE / 2) #define CYAPA_TSG_START_OF_APPLICATION 0x1700 #define CYAPA_TSG_APP_INTEGRITY_SIZE 60 #define CYAPA_TSG_FLASH_MAP_METADATA_SIZE 60 #define CYAPA_TSG_BL_KEY_SIZE 8 #define CYAPA_TSG_MAX_CMD_SIZE 256 /* Macro of PIP interface */ #define PIP_BL_INITIATE_RESP_LEN 11 #define PIP_BL_FAIL_EXIT_RESP_LEN 11 #define PIP_BL_FAIL_EXIT_STATUS_CODE 0x0c #define PIP_BL_VERIFY_INTEGRITY_RESP_LEN 12 #define PIP_BL_INTEGRITY_CHEKC_PASS 0x00 #define PIP_BL_BLOCK_WRITE_RESP_LEN 11 #define PIP_TOUCH_REPORT_ID 0x01 #define PIP_BTN_REPORT_ID 0x03 #define PIP_WAKEUP_EVENT_REPORT_ID 0x04 #define PIP_PUSH_BTN_REPORT_ID 0x06 #define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05 /* Special for old Gen5 TP. */ #define PIP_PROXIMITY_REPORT_ID 0x07 #define PIP_PROXIMITY_REPORT_SIZE 6 #define PIP_PROXIMITY_DISTANCE_OFFSET 0x05 #define PIP_PROXIMITY_DISTANCE_MASK 0x01 #define PIP_TOUCH_REPORT_HEAD_SIZE 7 #define PIP_TOUCH_REPORT_MAX_SIZE 127 #define PIP_BTN_REPORT_HEAD_SIZE 6 #define PIP_BTN_REPORT_MAX_SIZE 14 #define PIP_WAKEUP_EVENT_SIZE 4 #define PIP_NUMBER_OF_TOUCH_OFFSET 5 #define PIP_NUMBER_OF_TOUCH_MASK 0x1f #define PIP_BUTTONS_OFFSET 5 #define PIP_BUTTONS_MASK 0x0f #define PIP_GET_EVENT_ID(reg) (((reg) >> 5) & 0x03) #define PIP_GET_TOUCH_ID(reg) ((reg) & 0x1f) #define PIP_TOUCH_TYPE_FINGER 0x00 #define PIP_TOUCH_TYPE_PROXIMITY 0x01 #define PIP_TOUCH_TYPE_HOVER 0x02 #define PIP_GET_TOUCH_TYPE(reg) ((reg) & 0x07) #define RECORD_EVENT_NONE 0 #define RECORD_EVENT_TOUCHDOWN 1 #define RECORD_EVENT_DISPLACE 2 #define RECORD_EVENT_LIFTOFF 3 #define PIP_SENSING_MODE_MUTUAL_CAP_FINE 0x00 #define PIP_SENSING_MODE_SELF_CAP 0x02 #define PIP_SET_PROXIMITY 0x49 /* Macro of Gen5 */ #define GEN5_BL_MAX_OUTPUT_LENGTH 0x0100 #define GEN5_APP_MAX_OUTPUT_LENGTH 0x00fe #define GEN5_POWER_STATE_ACTIVE 0x01 #define GEN5_POWER_STATE_LOOK_FOR_TOUCH 0x02 #define GEN5_POWER_STATE_READY 0x03 #define GEN5_POWER_STATE_IDLE 0x04 #define GEN5_POWER_STATE_BTN_ONLY 0x05 #define GEN5_POWER_STATE_OFF 0x06 #define GEN5_POWER_READY_MAX_INTRVL_TIME 50 /* Unit: ms */ #define GEN5_POWER_IDLE_MAX_INTRVL_TIME 250 /* Unit: ms */ #define GEN5_CMD_GET_PARAMETER 0x05 #define GEN5_CMD_SET_PARAMETER 0x06 #define GEN5_PARAMETER_ACT_INTERVL_ID 0x4d #define GEN5_PARAMETER_ACT_INTERVL_SIZE 1 #define GEN5_PARAMETER_ACT_LFT_INTERVL_ID 0x4f #define GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE 2 #define GEN5_PARAMETER_LP_INTRVL_ID 0x4c #define GEN5_PARAMETER_LP_INTRVL_SIZE 2 #define GEN5_PARAMETER_DISABLE_PIP_REPORT 0x08 #define GEN5_BL_REPORT_DESCRIPTOR_SIZE 0x1d #define GEN5_BL_REPORT_DESCRIPTOR_ID 0xfe #define GEN5_APP_REPORT_DESCRIPTOR_SIZE 0xee #define GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE 0xfa #define GEN5_APP_REPORT_DESCRIPTOR_ID 0xf6 #define GEN5_RETRIEVE_MUTUAL_PWC_DATA 0x00 #define GEN5_RETRIEVE_SELF_CAP_PWC_DATA 0x01 #define GEN5_RETRIEVE_DATA_ELEMENT_SIZE_MASK 0x07 #define GEN5_CMD_EXECUTE_PANEL_SCAN 0x2a #define GEN5_CMD_RETRIEVE_PANEL_SCAN 0x2b #define GEN5_PANEL_SCAN_MUTUAL_RAW_DATA 0x00 #define GEN5_PANEL_SCAN_MUTUAL_BASELINE 0x01 #define GEN5_PANEL_SCAN_MUTUAL_DIFFCOUNT 0x02 #define GEN5_PANEL_SCAN_SELF_RAW_DATA 0x03 #define GEN5_PANEL_SCAN_SELF_BASELINE 0x04 #define GEN5_PANEL_SCAN_SELF_DIFFCOUNT 0x05 /* The offset only valid for retrieve PWC and panel scan commands */ #define GEN5_RESP_DATA_STRUCTURE_OFFSET 10 #define GEN5_PWC_DATA_ELEMENT_SIZE_MASK 0x07 struct cyapa_pip_touch_record { /* * Bit 7 - 3: reserved * Bit 2 - 0: touch type; * 0 : standard finger; * 1 : proximity (Start supported in Gen5 TP). * 2 : finger hover (defined, but not used yet.) * 3 - 15 : reserved. */ u8 touch_type; /* * Bit 7: indicates touch liftoff status. * 0 : touch is currently on the panel. * 1 : touch record indicates a liftoff. * Bit 6 - 5: indicates an event associated with this touch instance * 0 : no event * 1 : touchdown * 2 : significant displacement (> active distance) * 3 : liftoff (record reports last known coordinates) * Bit 4 - 0: An arbitrary ID tag associated with a finger * to allow tracking a touch as it moves around the panel. */ u8 touch_tip_event_id; /* Bit 7 - 0 of X-axis coordinate of the touch in pixel. */ u8 x_lo; /* Bit 15 - 8 of X-axis coordinate of the touch in pixel. */ u8 x_hi; /* Bit 7 - 0 of Y-axis coordinate of the touch in pixel. */ u8 y_lo; /* Bit 15 - 8 of Y-axis coordinate of the touch in pixel. */ u8 y_hi; /* * The meaning of this value is different when touch_type is different. * For standard finger type: * Touch intensity in counts, pressure value. * For proximity type (Start supported in Gen5 TP): * The distance, in surface units, between the contact and * the surface. **/ u8 z; /* * The length of the major axis of the ellipse of contact between * the finger and the panel (ABS_MT_TOUCH_MAJOR). */ u8 major_axis_len; /* * The length of the minor axis of the ellipse of contact between * the finger and the panel (ABS_MT_TOUCH_MINOR). */ u8 minor_axis_len; /* * The length of the major axis of the approaching tool. * (ABS_MT_WIDTH_MAJOR) */ u8 major_tool_len; /* * The length of the minor axis of the approaching tool. * (ABS_MT_WIDTH_MINOR) */ u8 minor_tool_len; /* * The angle between the panel vertical axis and * the major axis of the contact ellipse. This value is an 8-bit * signed integer. The range is -127 to +127 (corresponding to * -90 degree and +90 degree respectively). * The positive direction is clockwise from the vertical axis. * If the ellipse of contact degenerates into a circle, * orientation is reported as 0. */ u8 orientation; } __packed; struct cyapa_pip_report_data { u8 report_head[PIP_TOUCH_REPORT_HEAD_SIZE]; struct cyapa_pip_touch_record touch_records[10]; } __packed; struct cyapa_tsg_bin_image_head { u8 head_size; /* Unit: bytes, including itself. */ u8 ttda_driver_major_version; /* Reserved as 0. */ u8 ttda_driver_minor_version; /* Reserved as 0. */ u8 fw_major_version; u8 fw_minor_version; u8 fw_revision_control_number[8]; u8 silicon_id_hi; u8 silicon_id_lo; u8 chip_revision; u8 family_id; u8 bl_ver_maj; u8 bl_ver_min; } __packed; struct cyapa_tsg_bin_image_data_record { u8 flash_array_id; __be16 row_number; /* The number of bytes of flash data contained in this record. */ __be16 record_len; /* The flash program data. */ u8 record_data[CYAPA_TSG_FW_ROW_SIZE]; } __packed; struct cyapa_tsg_bin_image { struct cyapa_tsg_bin_image_head image_head; struct cyapa_tsg_bin_image_data_record records[0]; } __packed; struct pip_bl_packet_start { u8 sop; /* Start of packet, must be 01h */ u8 cmd_code; __le16 data_length; /* Size of data parameter start from data[0] */ } __packed; struct pip_bl_packet_end { __le16 crc; u8 eop; /* End of packet, must be 17h */ } __packed; struct pip_bl_cmd_head { __le16 addr; /* Output report register address, must be 0004h */ /* Size of packet not including output report register address */ __le16 length; u8 report_id; /* Bootloader output report id, must be 40h */ u8 rsvd; /* Reserved, must be 0 */ struct pip_bl_packet_start packet_start; u8 data[0]; /* Command data variable based on commands */ } __packed; /* Initiate bootload command data structure. */ struct pip_bl_initiate_cmd_data { /* Key must be "A5h 01h 02h 03h FFh FEh FDh 5Ah" */ u8 key[CYAPA_TSG_BL_KEY_SIZE]; u8 metadata_raw_parameter[CYAPA_TSG_FLASH_MAP_METADATA_SIZE]; __le16 metadata_crc; } __packed; struct tsg_bl_metadata_row_params { __le16 size; __le16 maximum_size; __le32 app_start; __le16 app_len; __le16 app_crc; __le32 app_entry; __le32 upgrade_start; __le16 upgrade_len; __le16 entry_row_crc; u8 padding[36]; /* Padding data must be 0 */ __le16 metadata_crc; /* CRC starts at offset of 60 */ } __packed; /* Bootload program and verify row command data structure */ struct tsg_bl_flash_row_head { u8 flash_array_id; __le16 flash_row_id; u8 flash_data[0]; } __packed; struct pip_app_cmd_head { __le16 addr; /* Output report register address, must be 0004h */ /* Size of packet not including output report register address */ __le16 length; u8 report_id; /* Application output report id, must be 2Fh */ u8 rsvd; /* Reserved, must be 0 */ /* * Bit 7: reserved, must be 0. * Bit 6-0: command code. */ u8 cmd_code; u8 parameter_data[0]; /* Parameter data variable based on cmd_code */ } __packed; /* Application get/set parameter command data structure */ struct gen5_app_set_parameter_data { u8 parameter_id; u8 parameter_size; __le32 value; } __packed; struct gen5_app_get_parameter_data { u8 parameter_id; } __packed; struct gen5_retrieve_panel_scan_data { __le16 read_offset; __le16 read_elements; u8 data_id; } __packed; u8 pip_read_sys_info[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x02 }; u8 pip_bl_read_app_info[] = { 0x04, 0x00, 0x0b, 0x00, 0x40, 0x00, 0x01, 0x3c, 0x00, 0x00, 0xb0, 0x42, 0x17 }; static u8 cyapa_pip_bl_cmd_key[] = { 0xa5, 0x01, 0x02, 0x03, 0xff, 0xfe, 0xfd, 0x5a }; static int cyapa_pip_event_process(struct cyapa *cyapa, struct cyapa_pip_report_data *report_data); int cyapa_pip_cmd_state_initialize(struct cyapa *cyapa) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; init_completion(&pip->cmd_ready); atomic_set(&pip->cmd_issued, 0); mutex_init(&pip->cmd_lock); mutex_init(&pip->pm_stage_lock); pip->pm_stage = CYAPA_PM_DEACTIVE; pip->resp_sort_func = NULL; pip->in_progress_cmd = PIP_INVALID_CMD; pip->resp_data = NULL; pip->resp_len = NULL; cyapa->dev_pwr_mode = UNINIT_PWR_MODE; cyapa->dev_sleep_time = UNINIT_SLEEP_TIME; return 0; } /* Return negative errno, or else the number of bytes read. */ ssize_t cyapa_i2c_pip_read(struct cyapa *cyapa, u8 *buf, size_t size) { int ret; if (size == 0) return 0; if (!buf || size > CYAPA_REG_MAP_SIZE) return -EINVAL; ret = i2c_master_recv(cyapa->client, buf, size); if (ret != size) return (ret < 0) ? ret : -EIO; return size; } /** * Return a negative errno code else zero on success. */ ssize_t cyapa_i2c_pip_write(struct cyapa *cyapa, u8 *buf, size_t size) { int ret; if (!buf || !size) return -EINVAL; ret = i2c_master_send(cyapa->client, buf, size); if (ret != size) return (ret < 0) ? ret : -EIO; return 0; } static void cyapa_set_pip_pm_state(struct cyapa *cyapa, enum cyapa_pm_stage pm_stage) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; mutex_lock(&pip->pm_stage_lock); pip->pm_stage = pm_stage; mutex_unlock(&pip->pm_stage_lock); } static void cyapa_reset_pip_pm_state(struct cyapa *cyapa) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; /* Indicates the pip->pm_stage is not valid. */ mutex_lock(&pip->pm_stage_lock); pip->pm_stage = CYAPA_PM_DEACTIVE; mutex_unlock(&pip->pm_stage_lock); } static enum cyapa_pm_stage cyapa_get_pip_pm_state(struct cyapa *cyapa) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; enum cyapa_pm_stage pm_stage; mutex_lock(&pip->pm_stage_lock); pm_stage = pip->pm_stage; mutex_unlock(&pip->pm_stage_lock); return pm_stage; } /** * This function is aimed to dump all not read data in Gen5 trackpad * before send any command, otherwise, the interrupt line will be blocked. */ int cyapa_empty_pip_output_data(struct cyapa *cyapa, u8 *buf, int *len, cb_sort func) { struct input_dev *input = cyapa->input; struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; enum cyapa_pm_stage pm_stage = cyapa_get_pip_pm_state(cyapa); int length; int report_count; int empty_count; int buf_len; int error; buf_len = 0; if (len) { buf_len = (*len < CYAPA_REG_MAP_SIZE) ? *len : CYAPA_REG_MAP_SIZE; *len = 0; } report_count = 8; /* max 7 pending data before command response data */ empty_count = 0; do { /* * Depending on testing in cyapa driver, there are max 5 "02 00" * packets between two valid buffered data report in firmware. * So in order to dump all buffered data out and * make interrupt line release for reassert again, * we must set the empty_count check value bigger than 5 to * make it work. Otherwise, in some situation, * the interrupt line may unable to reactive again, * which will cause trackpad device unable to * report data any more. * for example, it may happen in EFT and ESD testing. */ if (empty_count > 5) return 0; error = cyapa_i2c_pip_read(cyapa, pip->empty_buf, PIP_RESP_LENGTH_SIZE); if (error < 0) return error; length = get_unaligned_le16(pip->empty_buf); if (length == PIP_RESP_LENGTH_SIZE) { empty_count++; continue; } else if (length > CYAPA_REG_MAP_SIZE) { /* Should not happen */ return -EINVAL; } else if (length == 0) { /* Application or bootloader launch data polled out. */ length = PIP_RESP_LENGTH_SIZE; if (buf && buf_len && func && func(cyapa, pip->empty_buf, length)) { length = min(buf_len, length); memcpy(buf, pip->empty_buf, length); *len = length; /* Response found, success. */ return 0; } continue; } error = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length); if (error < 0) return error; report_count--; empty_count = 0; length = get_unaligned_le16(pip->empty_buf); if (length <= PIP_RESP_LENGTH_SIZE) { empty_count++; } else if (buf && buf_len && func && func(cyapa, pip->empty_buf, length)) { length = min(buf_len, length); memcpy(buf, pip->empty_buf, length); *len = length; /* Response found, success. */ return 0; } else if (cyapa->operational && input && input->users && (pm_stage == CYAPA_PM_RUNTIME_RESUME || pm_stage == CYAPA_PM_RUNTIME_SUSPEND)) { /* Parse the data and report it if it's valid. */ cyapa_pip_event_process(cyapa, (struct cyapa_pip_report_data *)pip->empty_buf); } error = -EINVAL; } while (report_count); return error; } static int cyapa_do_i2c_pip_cmd_irq_sync( struct cyapa *cyapa, u8 *cmd, size_t cmd_len, unsigned long timeout) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int error; /* Wait for interrupt to set ready completion */ init_completion(&pip->cmd_ready); atomic_inc(&pip->cmd_issued); error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len); if (error) { atomic_dec(&pip->cmd_issued); return (error < 0) ? error : -EIO; } /* Wait for interrupt to indicate command is completed. */ timeout = wait_for_completion_timeout(&pip->cmd_ready, msecs_to_jiffies(timeout)); if (timeout == 0) { atomic_dec(&pip->cmd_issued); return -ETIMEDOUT; } return 0; } static int cyapa_do_i2c_pip_cmd_polling( struct cyapa *cyapa, u8 *cmd, size_t cmd_len, u8 *resp_data, int *resp_len, unsigned long timeout, cb_sort func) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int tries; int length; int error; atomic_inc(&pip->cmd_issued); error = cyapa_i2c_pip_write(cyapa, cmd, cmd_len); if (error) { atomic_dec(&pip->cmd_issued); return error < 0 ? error : -EIO; } length = resp_len ? *resp_len : 0; if (resp_data && resp_len && length != 0 && func) { tries = timeout / 5; do { usleep_range(3000, 5000); *resp_len = length; error = cyapa_empty_pip_output_data(cyapa, resp_data, resp_len, func); if (error || *resp_len == 0) continue; else break; } while (--tries > 0); if ((error || *resp_len == 0) || tries <= 0) error = error ? error : -ETIMEDOUT; } atomic_dec(&pip->cmd_issued); return error; } int cyapa_i2c_pip_cmd_irq_sync( struct cyapa *cyapa, u8 *cmd, int cmd_len, u8 *resp_data, int *resp_len, unsigned long timeout, cb_sort func, bool irq_mode) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int error; if (!cmd || !cmd_len) return -EINVAL; /* Commands must be serialized. */ error = mutex_lock_interruptible(&pip->cmd_lock); if (error) return error; pip->resp_sort_func = func; pip->resp_data = resp_data; pip->resp_len = resp_len; if (cmd_len >= PIP_MIN_APP_CMD_LENGTH && cmd[4] == PIP_APP_CMD_REPORT_ID) { /* Application command */ pip->in_progress_cmd = cmd[6] & 0x7f; } else if (cmd_len >= PIP_MIN_BL_CMD_LENGTH && cmd[4] == PIP_BL_CMD_REPORT_ID) { /* Bootloader command */ pip->in_progress_cmd = cmd[7]; } /* Send command data, wait and read output response data's length. */ if (irq_mode) { pip->is_irq_mode = true; error = cyapa_do_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, timeout); if (error == -ETIMEDOUT && resp_data && resp_len && *resp_len != 0 && func) { /* * For some old version, there was no interrupt for * the command response data, so need to poll here * to try to get the response data. */ error = cyapa_empty_pip_output_data(cyapa, resp_data, resp_len, func); if (error || *resp_len == 0) error = error ? error : -ETIMEDOUT; } } else { pip->is_irq_mode = false; error = cyapa_do_i2c_pip_cmd_polling(cyapa, cmd, cmd_len, resp_data, resp_len, timeout, func); } pip->resp_sort_func = NULL; pip->resp_data = NULL; pip->resp_len = NULL; pip->in_progress_cmd = PIP_INVALID_CMD; mutex_unlock(&pip->cmd_lock); return error; } bool cyapa_sort_tsg_pip_bl_resp_data(struct cyapa *cyapa, u8 *data, int len) { if (!data || len < PIP_MIN_BL_RESP_LENGTH) return false; /* Bootloader input report id 30h */ if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID && data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY && data[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY) return true; return false; } bool cyapa_sort_tsg_pip_app_resp_data(struct cyapa *cyapa, u8 *data, int len) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int resp_len; if (!data || len < PIP_MIN_APP_RESP_LENGTH) return false; if (data[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_RESP_REPORT_ID && data[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) { resp_len = get_unaligned_le16(&data[PIP_RESP_LENGTH_OFFSET]); if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) == 0x00 && resp_len == PIP_UNSUPPORTED_CMD_RESP_LENGTH && data[5] == pip->in_progress_cmd) { /* Unsupported command code */ return false; } else if (GET_PIP_CMD_CODE(data[PIP_RESP_APP_CMD_OFFSET]) == pip->in_progress_cmd) { /* Correct command response received */ return true; } } return false; } static bool cyapa_sort_pip_application_launch_data(struct cyapa *cyapa, u8 *buf, int len) { if (buf == NULL || len < PIP_RESP_LENGTH_SIZE) return false; /* * After reset or power on, trackpad device always sets to 0x00 0x00 * to indicate a reset or power on event. */ if (buf[0] == 0 && buf[1] == 0) return true; return false; } static bool cyapa_sort_gen5_hid_descriptor_data(struct cyapa *cyapa, u8 *buf, int len) { int resp_len; int max_output_len; /* Check hid descriptor. */ if (len != PIP_HID_DESCRIPTOR_SIZE) return false; resp_len = get_unaligned_le16(&buf[PIP_RESP_LENGTH_OFFSET]); max_output_len = get_unaligned_le16(&buf[16]); if (resp_len == PIP_HID_DESCRIPTOR_SIZE) { if (buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID && max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { /* BL mode HID Descriptor */ return true; } else if ((buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_APP_REPORT_ID) && max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { /* APP mode HID Descriptor */ return true; } } return false; } static bool cyapa_sort_pip_deep_sleep_data(struct cyapa *cyapa, u8 *buf, int len) { if (len == PIP_DEEP_SLEEP_RESP_LENGTH && buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_DEEP_SLEEP_REPORT_ID && (buf[4] & PIP_DEEP_SLEEP_OPCODE_MASK) == PIP_DEEP_SLEEP_OPCODE) return true; return false; } static int gen5_idle_state_parse(struct cyapa *cyapa) { u8 resp_data[PIP_HID_DESCRIPTOR_SIZE]; int max_output_len; int length; u8 cmd[2]; int ret; int error; /* * Dump all buffered data firstly for the situation * when the trackpad is just power on the cyapa go here. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); memset(resp_data, 0, sizeof(resp_data)); ret = cyapa_i2c_pip_read(cyapa, resp_data, 3); if (ret != 3) return ret < 0 ? ret : -EIO; length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]); if (length == PIP_RESP_LENGTH_SIZE) { /* Normal state of Gen5 with no data to response */ cyapa->gen = CYAPA_GEN5; cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); /* Read description from trackpad device */ cmd[0] = 0x01; cmd[1] = 0x00; length = PIP_HID_DESCRIPTOR_SIZE; error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, PIP_RESP_LENGTH_SIZE, resp_data, &length, 300, cyapa_sort_gen5_hid_descriptor_data, false); if (error) return error; length = get_unaligned_le16( &resp_data[PIP_RESP_LENGTH_OFFSET]); max_output_len = get_unaligned_le16(&resp_data[16]); if ((length == PIP_HID_DESCRIPTOR_SIZE || length == PIP_RESP_LENGTH_SIZE) && (resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID) && max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { /* BL mode HID Description read */ cyapa->state = CYAPA_STATE_GEN5_BL; } else if ((length == PIP_HID_DESCRIPTOR_SIZE || length == PIP_RESP_LENGTH_SIZE) && (resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_APP_REPORT_ID) && max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { /* APP mode HID Description read */ cyapa->state = CYAPA_STATE_GEN5_APP; } else { /* Should not happen!!! */ cyapa->state = CYAPA_STATE_NO_DEVICE; } } return 0; } static int gen5_hid_description_header_parse(struct cyapa *cyapa, u8 *reg_data) { int length; u8 resp_data[32]; int max_output_len; int ret; /* 0x20 0x00 0xF7 is Gen5 Application HID Description Header; * 0x20 0x00 0xFF is Gen5 Bootloader HID Description Header. * * Must read HID Description content through out, * otherwise Gen5 trackpad cannot response next command * or report any touch or button data. */ ret = cyapa_i2c_pip_read(cyapa, resp_data, PIP_HID_DESCRIPTOR_SIZE); if (ret != PIP_HID_DESCRIPTOR_SIZE) return ret < 0 ? ret : -EIO; length = get_unaligned_le16(&resp_data[PIP_RESP_LENGTH_OFFSET]); max_output_len = get_unaligned_le16(&resp_data[16]); if (length == PIP_RESP_LENGTH_SIZE) { if (reg_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_BL_REPORT_ID) { /* * BL mode HID Description has been previously * read out. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_BL; } else { /* * APP mode HID Description has been previously * read out. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; } } else if (length == PIP_HID_DESCRIPTOR_SIZE && resp_data[2] == PIP_HID_BL_REPORT_ID && max_output_len == GEN5_BL_MAX_OUTPUT_LENGTH) { /* BL mode HID Description read. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_BL; } else if (length == PIP_HID_DESCRIPTOR_SIZE && (resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_HID_APP_REPORT_ID) && max_output_len == GEN5_APP_MAX_OUTPUT_LENGTH) { /* APP mode HID Description read. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; } else { /* Should not happen!!! */ cyapa->state = CYAPA_STATE_NO_DEVICE; } return 0; } static int gen5_report_data_header_parse(struct cyapa *cyapa, u8 *reg_data) { int length; length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); switch (reg_data[PIP_RESP_REPORT_ID_OFFSET]) { case PIP_TOUCH_REPORT_ID: if (length < PIP_TOUCH_REPORT_HEAD_SIZE || length > PIP_TOUCH_REPORT_MAX_SIZE) return -EINVAL; break; case PIP_BTN_REPORT_ID: case GEN5_OLD_PUSH_BTN_REPORT_ID: case PIP_PUSH_BTN_REPORT_ID: if (length < PIP_BTN_REPORT_HEAD_SIZE || length > PIP_BTN_REPORT_MAX_SIZE) return -EINVAL; break; case PIP_WAKEUP_EVENT_REPORT_ID: if (length != PIP_WAKEUP_EVENT_SIZE) return -EINVAL; break; default: return -EINVAL; } cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; return 0; } static int gen5_cmd_resp_header_parse(struct cyapa *cyapa, u8 *reg_data) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int length; int ret; /* * Must read report data through out, * otherwise Gen5 trackpad cannot response next command * or report any touch or button data. */ length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); ret = cyapa_i2c_pip_read(cyapa, pip->empty_buf, length); if (ret != length) return ret < 0 ? ret : -EIO; if (length == PIP_RESP_LENGTH_SIZE) { /* Previous command has read the data through out. */ if (reg_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID) { /* Gen5 BL command response data detected */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_BL; } else { /* Gen5 APP command response data detected */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; } } else if ((pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID) && (pip->empty_buf[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) && (pip->empty_buf[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY) && (pip->empty_buf[length - 1] == PIP_EOP_KEY)) { /* Gen5 BL command response data detected */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_BL; } else if (pip->empty_buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_APP_RESP_REPORT_ID && pip->empty_buf[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY) { /* Gen5 APP command response data detected */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; } else { /* Should not happen!!! */ cyapa->state = CYAPA_STATE_NO_DEVICE; } return 0; } static int cyapa_gen5_state_parse(struct cyapa *cyapa, u8 *reg_data, int len) { int length; if (!reg_data || len < 3) return -EINVAL; cyapa->state = CYAPA_STATE_NO_DEVICE; /* Parse based on Gen5 characteristic registers and bits */ length = get_unaligned_le16(®_data[PIP_RESP_LENGTH_OFFSET]); if (length == 0 || length == PIP_RESP_LENGTH_SIZE) { gen5_idle_state_parse(cyapa); } else if (length == PIP_HID_DESCRIPTOR_SIZE && (reg_data[2] == PIP_HID_BL_REPORT_ID || reg_data[2] == PIP_HID_APP_REPORT_ID)) { gen5_hid_description_header_parse(cyapa, reg_data); } else if ((length == GEN5_APP_REPORT_DESCRIPTOR_SIZE || length == GEN5_APP_CONTRACT_REPORT_DESCRIPTOR_SIZE) && reg_data[2] == GEN5_APP_REPORT_DESCRIPTOR_ID) { /* 0xEE 0x00 0xF6 is Gen5 APP report description header. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_APP; } else if (length == GEN5_BL_REPORT_DESCRIPTOR_SIZE && reg_data[2] == GEN5_BL_REPORT_DESCRIPTOR_ID) { /* 0x1D 0x00 0xFE is Gen5 BL report descriptor header. */ cyapa->gen = CYAPA_GEN5; cyapa->state = CYAPA_STATE_GEN5_BL; } else if (reg_data[2] == PIP_TOUCH_REPORT_ID || reg_data[2] == PIP_BTN_REPORT_ID || reg_data[2] == GEN5_OLD_PUSH_BTN_REPORT_ID || reg_data[2] == PIP_PUSH_BTN_REPORT_ID || reg_data[2] == PIP_WAKEUP_EVENT_REPORT_ID) { gen5_report_data_header_parse(cyapa, reg_data); } else if (reg_data[2] == PIP_BL_RESP_REPORT_ID || reg_data[2] == PIP_APP_RESP_REPORT_ID) { gen5_cmd_resp_header_parse(cyapa, reg_data); } if (cyapa->gen == CYAPA_GEN5) { /* * Must read the content (e.g.: report description and so on) * from trackpad device throughout. Otherwise, * Gen5 trackpad cannot response to next command or * report any touch or button data later. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); if (cyapa->state == CYAPA_STATE_GEN5_APP || cyapa->state == CYAPA_STATE_GEN5_BL) return 0; } return -EAGAIN; } static struct cyapa_tsg_bin_image_data_record * cyapa_get_image_record_data_num(const struct firmware *fw, int *record_num) { int head_size; head_size = fw->data[0] + 1; *record_num = (fw->size - head_size) / sizeof(struct cyapa_tsg_bin_image_data_record); return (struct cyapa_tsg_bin_image_data_record *)&fw->data[head_size]; } int cyapa_pip_bl_initiate(struct cyapa *cyapa, const struct firmware *fw) { struct cyapa_tsg_bin_image_data_record *image_records; struct pip_bl_cmd_head *bl_cmd_head; struct pip_bl_packet_start *bl_packet_start; struct pip_bl_initiate_cmd_data *cmd_data; struct pip_bl_packet_end *bl_packet_end; u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; int cmd_len; u16 cmd_data_len; u16 cmd_crc = 0; u16 meta_data_crc = 0; u8 resp_data[11]; int resp_len; int records_num; u8 *data; int error; /* Try to dump all buffered report data before any send command. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); bl_cmd_head = (struct pip_bl_cmd_head *)cmd; cmd_data_len = CYAPA_TSG_BL_KEY_SIZE + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE; cmd_len = sizeof(struct pip_bl_cmd_head) + cmd_data_len + sizeof(struct pip_bl_packet_end); put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr); put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length); bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID; bl_packet_start = &bl_cmd_head->packet_start; bl_packet_start->sop = PIP_SOP_KEY; bl_packet_start->cmd_code = PIP_BL_CMD_INITIATE_BL; /* 8 key bytes and 128 bytes block size */ put_unaligned_le16(cmd_data_len, &bl_packet_start->data_length); cmd_data = (struct pip_bl_initiate_cmd_data *)bl_cmd_head->data; memcpy(cmd_data->key, cyapa_pip_bl_cmd_key, CYAPA_TSG_BL_KEY_SIZE); image_records = cyapa_get_image_record_data_num(fw, &records_num); /* APP_INTEGRITY row is always the last row block */ data = image_records[records_num - 1].record_data; memcpy(cmd_data->metadata_raw_parameter, data, CYAPA_TSG_FLASH_MAP_METADATA_SIZE); meta_data_crc = crc_itu_t(0xffff, cmd_data->metadata_raw_parameter, CYAPA_TSG_FLASH_MAP_METADATA_SIZE); put_unaligned_le16(meta_data_crc, &cmd_data->metadata_crc); bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data + cmd_data_len); cmd_crc = crc_itu_t(0xffff, (u8 *)bl_packet_start, sizeof(struct pip_bl_packet_start) + cmd_data_len); put_unaligned_le16(cmd_crc, &bl_packet_end->crc); bl_packet_end->eop = PIP_EOP_KEY; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, resp_data, &resp_len, 12000, cyapa_sort_tsg_pip_bl_resp_data, true); if (error || resp_len != PIP_BL_INITIATE_RESP_LEN || resp_data[2] != PIP_BL_RESP_REPORT_ID || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error ? error : -EAGAIN; return 0; } static bool cyapa_sort_pip_bl_exit_data(struct cyapa *cyapa, u8 *buf, int len) { if (buf == NULL || len < PIP_RESP_LENGTH_SIZE) return false; if (buf[0] == 0 && buf[1] == 0) return true; /* Exit bootloader failed for some reason. */ if (len == PIP_BL_FAIL_EXIT_RESP_LEN && buf[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID && buf[PIP_RESP_RSVD_OFFSET] == PIP_RESP_RSVD_KEY && buf[PIP_RESP_BL_SOP_OFFSET] == PIP_SOP_KEY && buf[10] == PIP_EOP_KEY) return true; return false; } int cyapa_pip_bl_exit(struct cyapa *cyapa) { u8 bl_gen5_bl_exit[] = { 0x04, 0x00, 0x0B, 0x00, 0x40, 0x00, 0x01, 0x3b, 0x00, 0x00, 0x20, 0xc7, 0x17 }; u8 resp_data[11]; int resp_len; int error; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, bl_gen5_bl_exit, sizeof(bl_gen5_bl_exit), resp_data, &resp_len, 5000, cyapa_sort_pip_bl_exit_data, false); if (error) return error; if (resp_len == PIP_BL_FAIL_EXIT_RESP_LEN || resp_data[PIP_RESP_REPORT_ID_OFFSET] == PIP_BL_RESP_REPORT_ID) return -EAGAIN; if (resp_data[0] == 0x00 && resp_data[1] == 0x00) return 0; return -ENODEV; } int cyapa_pip_bl_enter(struct cyapa *cyapa) { u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2F, 0x00, 0x01 }; u8 resp_data[2]; int resp_len; int error; error = cyapa_poll_state(cyapa, 500); if (error < 0) return error; /* Already in bootloader mode, Skipping exit. */ if (cyapa_is_pip_bl_mode(cyapa)) return 0; else if (!cyapa_is_pip_app_mode(cyapa)) return -EINVAL; /* Try to dump all buffered report data before any send command. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); /* * Send bootloader enter command to trackpad device, * after enter bootloader, the response data is two bytes of 0x00 0x00. */ resp_len = sizeof(resp_data); memset(resp_data, 0, resp_len); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 5000, cyapa_sort_pip_application_launch_data, true); if (error || resp_data[0] != 0x00 || resp_data[1] != 0x00) return error < 0 ? error : -EAGAIN; cyapa->operational = false; if (cyapa->gen == CYAPA_GEN5) cyapa->state = CYAPA_STATE_GEN5_BL; else if (cyapa->gen == CYAPA_GEN6) cyapa->state = CYAPA_STATE_GEN6_BL; return 0; } static int cyapa_pip_fw_head_check(struct cyapa *cyapa, struct cyapa_tsg_bin_image_head *image_head) { if (image_head->head_size != 0x0C && image_head->head_size != 0x12) return -EINVAL; switch (cyapa->gen) { case CYAPA_GEN6: if (image_head->family_id != 0x9B || image_head->silicon_id_hi != 0x0B) return -EINVAL; break; case CYAPA_GEN5: /* Gen5 without proximity support. */ if (cyapa->platform_ver < 2) { if (image_head->head_size == 0x0C) break; return -EINVAL; } if (image_head->family_id != 0x91 || image_head->silicon_id_hi != 0x02) return -EINVAL; break; default: return -EINVAL; } return 0; } int cyapa_pip_check_fw(struct cyapa *cyapa, const struct firmware *fw) { struct device *dev = &cyapa->client->dev; struct cyapa_tsg_bin_image_data_record *image_records; const struct cyapa_tsg_bin_image_data_record *app_integrity; const struct tsg_bl_metadata_row_params *metadata; int flash_records_count; u32 fw_app_start, fw_upgrade_start; u16 fw_app_len, fw_upgrade_len; u16 app_crc; u16 app_integrity_crc; int i; /* Verify the firmware image not miss-used for Gen5 and Gen6. */ if (cyapa_pip_fw_head_check(cyapa, (struct cyapa_tsg_bin_image_head *)fw->data)) { dev_err(dev, "%s: firmware image not match TP device.\n", __func__); return -EINVAL; } image_records = cyapa_get_image_record_data_num(fw, &flash_records_count); /* * APP_INTEGRITY row is always the last row block, * and the row id must be 0x01ff. */ app_integrity = &image_records[flash_records_count - 1]; if (app_integrity->flash_array_id != 0x00 || get_unaligned_be16(&app_integrity->row_number) != 0x01ff) { dev_err(dev, "%s: invalid app_integrity data.\n", __func__); return -EINVAL; } metadata = (const void *)app_integrity->record_data; /* Verify app_integrity crc */ app_integrity_crc = crc_itu_t(0xffff, app_integrity->record_data, CYAPA_TSG_APP_INTEGRITY_SIZE); if (app_integrity_crc != get_unaligned_le16(&metadata->metadata_crc)) { dev_err(dev, "%s: invalid app_integrity crc.\n", __func__); return -EINVAL; } fw_app_start = get_unaligned_le32(&metadata->app_start); fw_app_len = get_unaligned_le16(&metadata->app_len); fw_upgrade_start = get_unaligned_le32(&metadata->upgrade_start); fw_upgrade_len = get_unaligned_le16(&metadata->upgrade_len); if (fw_app_start % CYAPA_TSG_FW_ROW_SIZE || fw_app_len % CYAPA_TSG_FW_ROW_SIZE || fw_upgrade_start % CYAPA_TSG_FW_ROW_SIZE || fw_upgrade_len % CYAPA_TSG_FW_ROW_SIZE) { dev_err(dev, "%s: invalid image alignment.\n", __func__); return -EINVAL; } /* Verify application image CRC. */ app_crc = 0xffffU; for (i = 0; i < fw_app_len / CYAPA_TSG_FW_ROW_SIZE; i++) { const u8 *data = image_records[i].record_data; app_crc = crc_itu_t(app_crc, data, CYAPA_TSG_FW_ROW_SIZE); } if (app_crc != get_unaligned_le16(&metadata->app_crc)) { dev_err(dev, "%s: invalid firmware app crc check.\n", __func__); return -EINVAL; } return 0; } static int cyapa_pip_write_fw_block(struct cyapa *cyapa, struct cyapa_tsg_bin_image_data_record *flash_record) { struct pip_bl_cmd_head *bl_cmd_head; struct pip_bl_packet_start *bl_packet_start; struct tsg_bl_flash_row_head *flash_row_head; struct pip_bl_packet_end *bl_packet_end; u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; u16 cmd_len; u8 flash_array_id; u16 flash_row_id; u16 record_len; u8 *record_data; u16 data_len; u16 crc; u8 resp_data[11]; int resp_len; int error; flash_array_id = flash_record->flash_array_id; flash_row_id = get_unaligned_be16(&flash_record->row_number); record_len = get_unaligned_be16(&flash_record->record_len); record_data = flash_record->record_data; memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); bl_cmd_head = (struct pip_bl_cmd_head *)cmd; bl_packet_start = &bl_cmd_head->packet_start; cmd_len = sizeof(struct pip_bl_cmd_head) + sizeof(struct tsg_bl_flash_row_head) + CYAPA_TSG_FLASH_MAP_BLOCK_SIZE + sizeof(struct pip_bl_packet_end); put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &bl_cmd_head->addr); /* Don't include 2 bytes register address */ put_unaligned_le16(cmd_len - 2, &bl_cmd_head->length); bl_cmd_head->report_id = PIP_BL_CMD_REPORT_ID; bl_packet_start->sop = PIP_SOP_KEY; bl_packet_start->cmd_code = PIP_BL_CMD_PROGRAM_VERIFY_ROW; /* 1 (Flash Array ID) + 2 (Flash Row ID) + 128 (flash data) */ data_len = sizeof(struct tsg_bl_flash_row_head) + record_len; put_unaligned_le16(data_len, &bl_packet_start->data_length); flash_row_head = (struct tsg_bl_flash_row_head *)bl_cmd_head->data; flash_row_head->flash_array_id = flash_array_id; put_unaligned_le16(flash_row_id, &flash_row_head->flash_row_id); memcpy(flash_row_head->flash_data, record_data, record_len); bl_packet_end = (struct pip_bl_packet_end *)(bl_cmd_head->data + data_len); crc = crc_itu_t(0xffff, (u8 *)bl_packet_start, sizeof(struct pip_bl_packet_start) + data_len); put_unaligned_le16(crc, &bl_packet_end->crc); bl_packet_end->eop = PIP_EOP_KEY; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, resp_data, &resp_len, 500, cyapa_sort_tsg_pip_bl_resp_data, true); if (error || resp_len != PIP_BL_BLOCK_WRITE_RESP_LEN || resp_data[2] != PIP_BL_RESP_REPORT_ID || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error < 0 ? error : -EAGAIN; return 0; } int cyapa_pip_do_fw_update(struct cyapa *cyapa, const struct firmware *fw) { struct device *dev = &cyapa->client->dev; struct cyapa_tsg_bin_image_data_record *image_records; int flash_records_count; int i; int error; cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); image_records = cyapa_get_image_record_data_num(fw, &flash_records_count); /* * The last flash row 0x01ff has been written through bl_initiate * command, so DO NOT write flash 0x01ff to trackpad device. */ for (i = 0; i < (flash_records_count - 1); i++) { error = cyapa_pip_write_fw_block(cyapa, &image_records[i]); if (error) { dev_err(dev, "%s: Gen5 FW update aborted: %d\n", __func__, error); return error; } } return 0; } static int cyapa_gen5_change_power_state(struct cyapa *cyapa, u8 power_state) { u8 cmd[8] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x08, 0x01 }; u8 resp_data[6]; int resp_len; int error; cmd[7] = power_state; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, false); if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x08) || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error < 0 ? error : -EINVAL; return 0; } static int cyapa_gen5_set_interval_time(struct cyapa *cyapa, u8 parameter_id, u16 interval_time) { struct pip_app_cmd_head *app_cmd_head; struct gen5_app_set_parameter_data *parameter_data; u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; int cmd_len; u8 resp_data[7]; int resp_len; u8 parameter_size; int error; memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); app_cmd_head = (struct pip_app_cmd_head *)cmd; parameter_data = (struct gen5_app_set_parameter_data *) app_cmd_head->parameter_data; cmd_len = sizeof(struct pip_app_cmd_head) + sizeof(struct gen5_app_set_parameter_data); switch (parameter_id) { case GEN5_PARAMETER_ACT_INTERVL_ID: parameter_size = GEN5_PARAMETER_ACT_INTERVL_SIZE; break; case GEN5_PARAMETER_ACT_LFT_INTERVL_ID: parameter_size = GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE; break; case GEN5_PARAMETER_LP_INTRVL_ID: parameter_size = GEN5_PARAMETER_LP_INTRVL_SIZE; break; default: return -EINVAL; } put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); /* * Don't include unused parameter value bytes and * 2 bytes register address. */ put_unaligned_le16(cmd_len - (4 - parameter_size) - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER; parameter_data->parameter_id = parameter_id; parameter_data->parameter_size = parameter_size; put_unaligned_le32((u32)interval_time, ¶meter_data->value); resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, false); if (error || resp_data[5] != parameter_id || resp_data[6] != parameter_size || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER)) return error < 0 ? error : -EINVAL; return 0; } static int cyapa_gen5_get_interval_time(struct cyapa *cyapa, u8 parameter_id, u16 *interval_time) { struct pip_app_cmd_head *app_cmd_head; struct gen5_app_get_parameter_data *parameter_data; u8 cmd[CYAPA_TSG_MAX_CMD_SIZE]; int cmd_len; u8 resp_data[11]; int resp_len; u8 parameter_size; u16 mask, i; int error; memset(cmd, 0, CYAPA_TSG_MAX_CMD_SIZE); app_cmd_head = (struct pip_app_cmd_head *)cmd; parameter_data = (struct gen5_app_get_parameter_data *) app_cmd_head->parameter_data; cmd_len = sizeof(struct pip_app_cmd_head) + sizeof(struct gen5_app_get_parameter_data); *interval_time = 0; switch (parameter_id) { case GEN5_PARAMETER_ACT_INTERVL_ID: parameter_size = GEN5_PARAMETER_ACT_INTERVL_SIZE; break; case GEN5_PARAMETER_ACT_LFT_INTERVL_ID: parameter_size = GEN5_PARAMETER_ACT_LFT_INTERVL_SIZE; break; case GEN5_PARAMETER_LP_INTRVL_ID: parameter_size = GEN5_PARAMETER_LP_INTRVL_SIZE; break; default: return -EINVAL; } put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); /* Don't include 2 bytes register address */ put_unaligned_le16(cmd_len - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = GEN5_CMD_GET_PARAMETER; parameter_data->parameter_id = parameter_id; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, cmd_len, resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, false); if (error || resp_data[5] != parameter_id || resp_data[6] == 0 || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_GET_PARAMETER)) return error < 0 ? error : -EINVAL; mask = 0; for (i = 0; i < parameter_size; i++) mask |= (0xff << (i * 8)); *interval_time = get_unaligned_le16(&resp_data[7]) & mask; return 0; } static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa) { struct pip_app_cmd_head *app_cmd_head; u8 cmd[10]; u8 resp_data[7]; int resp_len; int error; memset(cmd, 0, sizeof(cmd)); app_cmd_head = (struct pip_app_cmd_head *)cmd; put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = GEN5_CMD_SET_PARAMETER; app_cmd_head->parameter_data[0] = GEN5_PARAMETER_DISABLE_PIP_REPORT; app_cmd_head->parameter_data[1] = 0x01; app_cmd_head->parameter_data[2] = 0x01; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, false); if (error || resp_data[5] != GEN5_PARAMETER_DISABLE_PIP_REPORT || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_SET_PARAMETER) || resp_data[6] != 0x01) return error < 0 ? error : -EINVAL; return 0; } int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable) { u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, PIP_SET_PROXIMITY, (u8)!!enable }; u8 resp_data[6]; int resp_len; int error; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, false); if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_SET_PROXIMITY) || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) { error = (error == -ETIMEDOUT) ? -EOPNOTSUPP : error; return error < 0 ? error : -EINVAL; } return 0; } int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state) { u8 cmd[] = { 0x05, 0x00, 0x00, 0x08}; u8 resp_data[5]; int resp_len; int error; cmd[2] = state & PIP_DEEP_SLEEP_STATE_MASK; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_pip_deep_sleep_data, false); if (error || ((resp_data[3] & PIP_DEEP_SLEEP_STATE_MASK) != state)) return -EINVAL; return 0; } static int cyapa_gen5_set_power_mode(struct cyapa *cyapa, u8 power_mode, u16 sleep_time, enum cyapa_pm_stage pm_stage) { struct device *dev = &cyapa->client->dev; u8 power_state; int error = 0; if (cyapa->state != CYAPA_STATE_GEN5_APP) return 0; cyapa_set_pip_pm_state(cyapa, pm_stage); if (PIP_DEV_GET_PWR_STATE(cyapa) == UNINIT_PWR_MODE) { /* * Assume TP in deep sleep mode when driver is loaded, * avoid driver unload and reload command IO issue caused by TP * has been set into deep sleep mode when unloading. */ PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF); } if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) && PIP_DEV_GET_PWR_STATE(cyapa) != PWR_MODE_OFF) if (cyapa_gen5_get_interval_time(cyapa, GEN5_PARAMETER_LP_INTRVL_ID, &cyapa->dev_sleep_time) != 0) PIP_DEV_SET_SLEEP_TIME(cyapa, UNINIT_SLEEP_TIME); if (PIP_DEV_GET_PWR_STATE(cyapa) == power_mode) { if (power_mode == PWR_MODE_OFF || power_mode == PWR_MODE_FULL_ACTIVE || power_mode == PWR_MODE_BTN_ONLY || PIP_DEV_GET_SLEEP_TIME(cyapa) == sleep_time) { /* Has in correct power mode state, early return. */ goto out; } } if (power_mode == PWR_MODE_OFF) { error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_OFF); if (error) { dev_err(dev, "enter deep sleep fail: %d\n", error); goto out; } PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_OFF); goto out; } /* * When trackpad in power off mode, it cannot change to other power * state directly, must be wake up from sleep firstly, then * continue to do next power sate change. */ if (PIP_DEV_GET_PWR_STATE(cyapa) == PWR_MODE_OFF) { error = cyapa_pip_deep_sleep(cyapa, PIP_DEEP_SLEEP_STATE_ON); if (error) { dev_err(dev, "deep sleep wake fail: %d\n", error); goto out; } } if (power_mode == PWR_MODE_FULL_ACTIVE) { error = cyapa_gen5_change_power_state(cyapa, GEN5_POWER_STATE_ACTIVE); if (error) { dev_err(dev, "change to active fail: %d\n", error); goto out; } PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_FULL_ACTIVE); } else if (power_mode == PWR_MODE_BTN_ONLY) { error = cyapa_gen5_change_power_state(cyapa, GEN5_POWER_STATE_BTN_ONLY); if (error) { dev_err(dev, "fail to button only mode: %d\n", error); goto out; } PIP_DEV_SET_PWR_STATE(cyapa, PWR_MODE_BTN_ONLY); } else { /* * Continue to change power mode even failed to set * interval time, it won't affect the power mode change. * except the sleep interval time is not correct. */ if (PIP_DEV_UNINIT_SLEEP_TIME(cyapa) || sleep_time != PIP_DEV_GET_SLEEP_TIME(cyapa)) if (cyapa_gen5_set_interval_time(cyapa, GEN5_PARAMETER_LP_INTRVL_ID, sleep_time) == 0) PIP_DEV_SET_SLEEP_TIME(cyapa, sleep_time); if (sleep_time <= GEN5_POWER_READY_MAX_INTRVL_TIME) power_state = GEN5_POWER_STATE_READY; else power_state = GEN5_POWER_STATE_IDLE; error = cyapa_gen5_change_power_state(cyapa, power_state); if (error) { dev_err(dev, "set power state to 0x%02x failed: %d\n", power_state, error); goto out; } /* * Disable pip report for a little time, firmware will * re-enable it automatically. It's used to fix the issue * that trackpad unable to report signal to wake system up * in the special situation that system is in suspending, and * at the same time, user touch trackpad to wake system up. * This function can avoid the data to be buffered when system * is suspending which may cause interrupt line unable to be * asserted again. */ if (pm_stage == CYAPA_PM_SUSPEND) cyapa_gen5_disable_pip_report(cyapa); PIP_DEV_SET_PWR_STATE(cyapa, cyapa_sleep_time_to_pwr_cmd(sleep_time)); } out: cyapa_reset_pip_pm_state(cyapa); return error; } int cyapa_pip_resume_scanning(struct cyapa *cyapa) { u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x04 }; u8 resp_data[6]; int resp_len; int error; /* Try to dump all buffered data before doing command. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, true); if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x04)) return -EINVAL; /* Try to dump all buffered data when resuming scanning. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); return 0; } int cyapa_pip_suspend_scanning(struct cyapa *cyapa) { u8 cmd[] = { 0x04, 0x00, 0x05, 0x00, 0x2f, 0x00, 0x03 }; u8 resp_data[6]; int resp_len; int error; /* Try to dump all buffered data before doing command. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, true); if (error || !VALID_CMD_RESP_HEADER(resp_data, 0x03)) return -EINVAL; /* Try to dump all buffered data when suspending scanning. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); return 0; } static int cyapa_pip_calibrate_pwcs(struct cyapa *cyapa, u8 calibrate_sensing_mode_type) { struct pip_app_cmd_head *app_cmd_head; u8 cmd[8]; u8 resp_data[6]; int resp_len; int error; /* Try to dump all buffered data before doing command. */ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL); memset(cmd, 0, sizeof(cmd)); app_cmd_head = (struct pip_app_cmd_head *)cmd; put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = PIP_CMD_CALIBRATE; app_cmd_head->parameter_data[0] = calibrate_sensing_mode_type; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 5000, cyapa_sort_tsg_pip_app_resp_data, true); if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_CMD_CALIBRATE) || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error < 0 ? error : -EAGAIN; return 0; } ssize_t cyapa_pip_do_calibrate(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct cyapa *cyapa = dev_get_drvdata(dev); int error, calibrate_error; /* 1. Suspend Scanning*/ error = cyapa_pip_suspend_scanning(cyapa); if (error) return error; /* 2. Do mutual capacitance fine calibrate. */ calibrate_error = cyapa_pip_calibrate_pwcs(cyapa, PIP_SENSING_MODE_MUTUAL_CAP_FINE); if (calibrate_error) goto resume_scanning; /* 3. Do self capacitance calibrate. */ calibrate_error = cyapa_pip_calibrate_pwcs(cyapa, PIP_SENSING_MODE_SELF_CAP); if (calibrate_error) goto resume_scanning; resume_scanning: /* 4. Resume Scanning*/ error = cyapa_pip_resume_scanning(cyapa); if (error || calibrate_error) return error ? error : calibrate_error; return count; } static s32 twos_complement_to_s32(s32 value, int num_bits) { if (value >> (num_bits - 1)) value |= -1 << num_bits; return value; } static s32 cyapa_parse_structure_data(u8 data_format, u8 *buf, int buf_len) { int data_size; bool big_endian; bool unsigned_type; s32 value; data_size = (data_format & 0x07); big_endian = ((data_format & 0x10) == 0x00); unsigned_type = ((data_format & 0x20) == 0x00); if (buf_len < data_size) return 0; switch (data_size) { case 1: value = buf[0]; break; case 2: if (big_endian) value = get_unaligned_be16(buf); else value = get_unaligned_le16(buf); break; case 4: if (big_endian) value = get_unaligned_be32(buf); else value = get_unaligned_le32(buf); break; default: /* Should not happen, just as default case here. */ value = 0; break; } if (!unsigned_type) value = twos_complement_to_s32(value, data_size * 8); return value; } static void cyapa_gen5_guess_electrodes(struct cyapa *cyapa, int *electrodes_rx, int *electrodes_tx) { if (cyapa->electrodes_rx != 0) { *electrodes_rx = cyapa->electrodes_rx; *electrodes_tx = (cyapa->electrodes_x == *electrodes_rx) ? cyapa->electrodes_y : cyapa->electrodes_x; } else { *electrodes_tx = min(cyapa->electrodes_x, cyapa->electrodes_y); *electrodes_rx = max(cyapa->electrodes_x, cyapa->electrodes_y); } } /* * Read all the global mutual or self idac data or mutual or self local PWC * data based on the @idac_data_type. * If the input value of @data_size is 0, then means read global mutual or * self idac data. For read global mutual idac data, @idac_max, @idac_min and * @idac_ave are in order used to return the max value of global mutual idac * data, the min value of global mutual idac and the average value of the * global mutual idac data. For read global self idac data, @idac_max is used * to return the global self cap idac data in Rx direction, @idac_min is used * to return the global self cap idac data in Tx direction. @idac_ave is not * used. * If the input value of @data_size is not 0, than means read the mutual or * self local PWC data. The @idac_max, @idac_min and @idac_ave are used to * return the max, min and average value of the mutual or self local PWC data. * Note, in order to read mutual local PWC data, must read invoke this function * to read the mutual global idac data firstly to set the correct Rx number * value, otherwise, the read mutual idac and PWC data may not correct. */ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa, u8 cmd_code, u8 idac_data_type, int *data_size, int *idac_max, int *idac_min, int *idac_ave) { struct pip_app_cmd_head *cmd_head; u8 cmd[12]; u8 resp_data[256]; int resp_len; int read_len; int value; u16 offset; int read_elements; bool read_global_idac; int sum, count, max_element_cnt; int tmp_max, tmp_min, tmp_ave, tmp_sum, tmp_count; int electrodes_rx, electrodes_tx; int i; int error; if (cmd_code != PIP_RETRIEVE_DATA_STRUCTURE || (idac_data_type != GEN5_RETRIEVE_MUTUAL_PWC_DATA && idac_data_type != GEN5_RETRIEVE_SELF_CAP_PWC_DATA) || !data_size || !idac_max || !idac_min || !idac_ave) return -EINVAL; *idac_max = INT_MIN; *idac_min = INT_MAX; sum = count = tmp_count = 0; electrodes_rx = electrodes_tx = 0; if (*data_size == 0) { /* * Read global idac values firstly. * Currently, no idac data exceed 4 bytes. */ read_global_idac = true; offset = 0; *data_size = 4; tmp_max = INT_MIN; tmp_min = INT_MAX; tmp_ave = tmp_sum = tmp_count = 0; if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { if (cyapa->aligned_electrodes_rx == 0) { cyapa_gen5_guess_electrodes(cyapa, &electrodes_rx, &electrodes_tx); cyapa->aligned_electrodes_rx = (electrodes_rx + 3) & ~3u; } max_element_cnt = (cyapa->aligned_electrodes_rx + 7) & ~7u; } else { max_element_cnt = 2; } } else { read_global_idac = false; if (*data_size > 4) *data_size = 4; /* Calculate the start offset in bytes of local PWC data. */ if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { offset = cyapa->aligned_electrodes_rx * (*data_size); if (cyapa->electrodes_rx == cyapa->electrodes_x) electrodes_tx = cyapa->electrodes_y; else electrodes_tx = cyapa->electrodes_x; max_element_cnt = ((cyapa->aligned_electrodes_rx + 7) & ~7u) * electrodes_tx; } else { offset = 2; max_element_cnt = cyapa->electrodes_x + cyapa->electrodes_y; max_element_cnt = (max_element_cnt + 3) & ~3u; } } memset(cmd, 0, sizeof(cmd)); cmd_head = (struct pip_app_cmd_head *)cmd; put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &cmd_head->addr); put_unaligned_le16(sizeof(cmd) - 2, &cmd_head->length); cmd_head->report_id = PIP_APP_CMD_REPORT_ID; cmd_head->cmd_code = cmd_code; do { read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) / (*data_size); read_elements = min(read_elements, max_element_cnt - count); read_len = read_elements * (*data_size); put_unaligned_le16(offset, &cmd_head->parameter_data[0]); put_unaligned_le16(read_len, &cmd_head->parameter_data[2]); cmd_head->parameter_data[4] = idac_data_type; resp_len = GEN5_RESP_DATA_STRUCTURE_OFFSET + read_len; error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, true); if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET || !VALID_CMD_RESP_HEADER(resp_data, cmd_code) || !PIP_CMD_COMPLETE_SUCCESS(resp_data) || resp_data[6] != idac_data_type) return (error < 0) ? error : -EAGAIN; read_len = get_unaligned_le16(&resp_data[7]); if (read_len == 0) break; *data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK); if (read_len < *data_size) return -EINVAL; if (read_global_idac && idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) { /* Rx's self global idac data. */ *idac_max = cyapa_parse_structure_data( resp_data[9], &resp_data[GEN5_RESP_DATA_STRUCTURE_OFFSET], *data_size); /* Tx's self global idac data. */ *idac_min = cyapa_parse_structure_data( resp_data[9], &resp_data[GEN5_RESP_DATA_STRUCTURE_OFFSET + *data_size], *data_size); break; } /* Read mutual global idac or local mutual/self PWC data. */ offset += read_len; for (i = 10; i < (read_len + GEN5_RESP_DATA_STRUCTURE_OFFSET); i += *data_size) { value = cyapa_parse_structure_data(resp_data[9], &resp_data[i], *data_size); *idac_min = min(value, *idac_min); *idac_max = max(value, *idac_max); if (idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA && tmp_count < cyapa->aligned_electrodes_rx && read_global_idac) { /* * The value gap between global and local mutual * idac data must bigger than 50%. * Normally, global value bigger than 50, * local values less than 10. */ if (!tmp_ave || value > tmp_ave / 2) { tmp_min = min(value, tmp_min); tmp_max = max(value, tmp_max); tmp_sum += value; tmp_count++; tmp_ave = tmp_sum / tmp_count; } } sum += value; count++; if (count >= max_element_cnt) goto out; } } while (true); out: *idac_ave = count ? (sum / count) : 0; if (read_global_idac && idac_data_type == GEN5_RETRIEVE_MUTUAL_PWC_DATA) { if (tmp_count == 0) return 0; if (tmp_count == cyapa->aligned_electrodes_rx) { cyapa->electrodes_rx = cyapa->electrodes_rx ? cyapa->electrodes_rx : electrodes_rx; } else if (tmp_count == electrodes_rx) { cyapa->electrodes_rx = cyapa->electrodes_rx ? cyapa->electrodes_rx : electrodes_rx; cyapa->aligned_electrodes_rx = electrodes_rx; } else { cyapa->electrodes_rx = cyapa->electrodes_rx ? cyapa->electrodes_rx : electrodes_tx; cyapa->aligned_electrodes_rx = tmp_count; } *idac_min = tmp_min; *idac_max = tmp_max; *idac_ave = tmp_ave; } return 0; } static int cyapa_gen5_read_mutual_idac_data(struct cyapa *cyapa, int *gidac_mutual_max, int *gidac_mutual_min, int *gidac_mutual_ave, int *lidac_mutual_max, int *lidac_mutual_min, int *lidac_mutual_ave) { int data_size; int error; *gidac_mutual_max = *gidac_mutual_min = *gidac_mutual_ave = 0; *lidac_mutual_max = *lidac_mutual_min = *lidac_mutual_ave = 0; data_size = 0; error = cyapa_gen5_read_idac_data(cyapa, PIP_RETRIEVE_DATA_STRUCTURE, GEN5_RETRIEVE_MUTUAL_PWC_DATA, &data_size, gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave); if (error) return error; error = cyapa_gen5_read_idac_data(cyapa, PIP_RETRIEVE_DATA_STRUCTURE, GEN5_RETRIEVE_MUTUAL_PWC_DATA, &data_size, lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave); return error; } static int cyapa_gen5_read_self_idac_data(struct cyapa *cyapa, int *gidac_self_rx, int *gidac_self_tx, int *lidac_self_max, int *lidac_self_min, int *lidac_self_ave) { int data_size; int error; *gidac_self_rx = *gidac_self_tx = 0; *lidac_self_max = *lidac_self_min = *lidac_self_ave = 0; data_size = 0; error = cyapa_gen5_read_idac_data(cyapa, PIP_RETRIEVE_DATA_STRUCTURE, GEN5_RETRIEVE_SELF_CAP_PWC_DATA, &data_size, lidac_self_max, lidac_self_min, lidac_self_ave); if (error) return error; *gidac_self_rx = *lidac_self_max; *gidac_self_tx = *lidac_self_min; error = cyapa_gen5_read_idac_data(cyapa, PIP_RETRIEVE_DATA_STRUCTURE, GEN5_RETRIEVE_SELF_CAP_PWC_DATA, &data_size, lidac_self_max, lidac_self_min, lidac_self_ave); return error; } static ssize_t cyapa_gen5_execute_panel_scan(struct cyapa *cyapa) { struct pip_app_cmd_head *app_cmd_head; u8 cmd[7]; u8 resp_data[6]; int resp_len; int error; memset(cmd, 0, sizeof(cmd)); app_cmd_head = (struct pip_app_cmd_head *)cmd; put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = GEN5_CMD_EXECUTE_PANEL_SCAN; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, true); if (error || resp_len != sizeof(resp_data) || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_EXECUTE_PANEL_SCAN) || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error ? error : -EAGAIN; return 0; } static int cyapa_gen5_read_panel_scan_raw_data(struct cyapa *cyapa, u8 cmd_code, u8 raw_data_type, int raw_data_max_num, int *raw_data_max, int *raw_data_min, int *raw_data_ave, u8 *buffer) { struct pip_app_cmd_head *app_cmd_head; struct gen5_retrieve_panel_scan_data *panel_sacn_data; u8 cmd[12]; u8 resp_data[256]; /* Max bytes can transfer one time. */ int resp_len; int read_elements; int read_len; u16 offset; s32 value; int sum, count; int data_size; s32 *intp; int i; int error; if (cmd_code != GEN5_CMD_RETRIEVE_PANEL_SCAN || (raw_data_type > GEN5_PANEL_SCAN_SELF_DIFFCOUNT) || !raw_data_max || !raw_data_min || !raw_data_ave) return -EINVAL; intp = (s32 *)buffer; *raw_data_max = INT_MIN; *raw_data_min = INT_MAX; sum = count = 0; offset = 0; /* Assume max element size is 4 currently. */ read_elements = (256 - GEN5_RESP_DATA_STRUCTURE_OFFSET) / 4; read_len = read_elements * 4; app_cmd_head = (struct pip_app_cmd_head *)cmd; put_unaligned_le16(PIP_OUTPUT_REPORT_ADDR, &app_cmd_head->addr); put_unaligned_le16(sizeof(cmd) - 2, &app_cmd_head->length); app_cmd_head->report_id = PIP_APP_CMD_REPORT_ID; app_cmd_head->cmd_code = cmd_code; panel_sacn_data = (struct gen5_retrieve_panel_scan_data *) app_cmd_head->parameter_data; do { put_unaligned_le16(offset, &panel_sacn_data->read_offset); put_unaligned_le16(read_elements, &panel_sacn_data->read_elements); panel_sacn_data->data_id = raw_data_type; resp_len = GEN5_RESP_DATA_STRUCTURE_OFFSET + read_len; error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd), resp_data, &resp_len, 500, cyapa_sort_tsg_pip_app_resp_data, true); if (error || resp_len < GEN5_RESP_DATA_STRUCTURE_OFFSET || !VALID_CMD_RESP_HEADER(resp_data, cmd_code) || !PIP_CMD_COMPLETE_SUCCESS(resp_data) || resp_data[6] != raw_data_type) return error ? error : -EAGAIN; read_elements = get_unaligned_le16(&resp_data[7]); if (read_elements == 0) break; data_size = (resp_data[9] & GEN5_PWC_DATA_ELEMENT_SIZE_MASK); offset += read_elements; if (read_elements) { for (i = GEN5_RESP_DATA_STRUCTURE_OFFSET; i < (read_elements * data_size + GEN5_RESP_DATA_STRUCTURE_OFFSET); i += data_size) { value = cyapa_parse_structure_data(resp_data[9], &resp_data[i], data_size); *raw_data_min = min(value, *raw_data_min); *raw_data_max = max(value, *raw_data_max); if (intp) put_unaligned_le32(value, &intp[count]); sum += value; count++; } } if (count >= raw_data_max_num) break; read_elements = (sizeof(resp_data) - GEN5_RESP_DATA_STRUCTURE_OFFSET) / data_size; read_len = read_elements * data_size; } while (true); *raw_data_ave = count ? (sum / count) : 0; return 0; } static ssize_t cyapa_gen5_show_baseline(struct device *dev, struct device_attribute *attr, char *buf) { struct cyapa *cyapa = dev_get_drvdata(dev); int gidac_mutual_max, gidac_mutual_min, gidac_mutual_ave; int lidac_mutual_max, lidac_mutual_min, lidac_mutual_ave; int gidac_self_rx, gidac_self_tx; int lidac_self_max, lidac_self_min, lidac_self_ave; int raw_cap_mutual_max, raw_cap_mutual_min, raw_cap_mutual_ave; int raw_cap_self_max, raw_cap_self_min, raw_cap_self_ave; int mutual_diffdata_max, mutual_diffdata_min, mutual_diffdata_ave; int self_diffdata_max, self_diffdata_min, self_diffdata_ave; int mutual_baseline_max, mutual_baseline_min, mutual_baseline_ave; int self_baseline_max, self_baseline_min, self_baseline_ave; int error, resume_error; int size; if (!cyapa_is_pip_app_mode(cyapa)) return -EBUSY; /* 1. Suspend Scanning*/ error = cyapa_pip_suspend_scanning(cyapa); if (error) return error; /* 2. Read global and local mutual IDAC data. */ gidac_self_rx = gidac_self_tx = 0; error = cyapa_gen5_read_mutual_idac_data(cyapa, &gidac_mutual_max, &gidac_mutual_min, &gidac_mutual_ave, &lidac_mutual_max, &lidac_mutual_min, &lidac_mutual_ave); if (error) goto resume_scanning; /* 3. Read global and local self IDAC data. */ error = cyapa_gen5_read_self_idac_data(cyapa, &gidac_self_rx, &gidac_self_tx, &lidac_self_max, &lidac_self_min, &lidac_self_ave); if (error) goto resume_scanning; /* 4. Execute panel scan. It must be executed before read data. */ error = cyapa_gen5_execute_panel_scan(cyapa); if (error) goto resume_scanning; /* 5. Retrieve panel scan, mutual cap raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_MUTUAL_RAW_DATA, cyapa->electrodes_x * cyapa->electrodes_y, &raw_cap_mutual_max, &raw_cap_mutual_min, &raw_cap_mutual_ave, NULL); if (error) goto resume_scanning; /* 6. Retrieve panel scan, self cap raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_SELF_RAW_DATA, cyapa->electrodes_x + cyapa->electrodes_y, &raw_cap_self_max, &raw_cap_self_min, &raw_cap_self_ave, NULL); if (error) goto resume_scanning; /* 7. Retrieve panel scan, mutual cap diffcount raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_MUTUAL_DIFFCOUNT, cyapa->electrodes_x * cyapa->electrodes_y, &mutual_diffdata_max, &mutual_diffdata_min, &mutual_diffdata_ave, NULL); if (error) goto resume_scanning; /* 8. Retrieve panel scan, self cap diffcount raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_SELF_DIFFCOUNT, cyapa->electrodes_x + cyapa->electrodes_y, &self_diffdata_max, &self_diffdata_min, &self_diffdata_ave, NULL); if (error) goto resume_scanning; /* 9. Retrieve panel scan, mutual cap baseline raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_MUTUAL_BASELINE, cyapa->electrodes_x * cyapa->electrodes_y, &mutual_baseline_max, &mutual_baseline_min, &mutual_baseline_ave, NULL); if (error) goto resume_scanning; /* 10. Retrieve panel scan, self cap baseline raw data. */ error = cyapa_gen5_read_panel_scan_raw_data(cyapa, GEN5_CMD_RETRIEVE_PANEL_SCAN, GEN5_PANEL_SCAN_SELF_BASELINE, cyapa->electrodes_x + cyapa->electrodes_y, &self_baseline_max, &self_baseline_min, &self_baseline_ave, NULL); if (error) goto resume_scanning; resume_scanning: /* 11. Resume Scanning*/ resume_error = cyapa_pip_resume_scanning(cyapa); if (resume_error || error) return resume_error ? resume_error : error; /* 12. Output data strings */ size = scnprintf(buf, PAGE_SIZE, "%d %d %d %d %d %d %d %d %d %d %d ", gidac_mutual_min, gidac_mutual_max, gidac_mutual_ave, lidac_mutual_min, lidac_mutual_max, lidac_mutual_ave, gidac_self_rx, gidac_self_tx, lidac_self_min, lidac_self_max, lidac_self_ave); size += scnprintf(buf + size, PAGE_SIZE - size, "%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d\n", raw_cap_mutual_min, raw_cap_mutual_max, raw_cap_mutual_ave, raw_cap_self_min, raw_cap_self_max, raw_cap_self_ave, mutual_diffdata_min, mutual_diffdata_max, mutual_diffdata_ave, self_diffdata_min, self_diffdata_max, self_diffdata_ave, mutual_baseline_min, mutual_baseline_max, mutual_baseline_ave, self_baseline_min, self_baseline_max, self_baseline_ave); return size; } bool cyapa_pip_sort_system_info_data(struct cyapa *cyapa, u8 *buf, int len) { /* Check the report id and command code */ if (VALID_CMD_RESP_HEADER(buf, 0x02)) return true; return false; } static int cyapa_gen5_bl_query_data(struct cyapa *cyapa) { u8 resp_data[PIP_BL_APP_INFO_RESP_LENGTH]; int resp_len; int error; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, pip_bl_read_app_info, PIP_BL_READ_APP_INFO_CMD_LENGTH, resp_data, &resp_len, 500, cyapa_sort_tsg_pip_bl_resp_data, false); if (error || resp_len < PIP_BL_APP_INFO_RESP_LENGTH || !PIP_CMD_COMPLETE_SUCCESS(resp_data)) return error ? error : -EIO; memcpy(&cyapa->product_id[0], &resp_data[8], 5); cyapa->product_id[5] = '-'; memcpy(&cyapa->product_id[6], &resp_data[13], 6); cyapa->product_id[12] = '-'; memcpy(&cyapa->product_id[13], &resp_data[19], 2); cyapa->product_id[15] = '\0'; cyapa->fw_maj_ver = resp_data[22]; cyapa->fw_min_ver = resp_data[23]; cyapa->platform_ver = (resp_data[26] >> PIP_BL_PLATFORM_VER_SHIFT) & PIP_BL_PLATFORM_VER_MASK; return 0; } static int cyapa_gen5_get_query_data(struct cyapa *cyapa) { u8 resp_data[PIP_READ_SYS_INFO_RESP_LENGTH]; int resp_len; u16 product_family; int error; resp_len = sizeof(resp_data); error = cyapa_i2c_pip_cmd_irq_sync(cyapa, pip_read_sys_info, PIP_READ_SYS_INFO_CMD_LENGTH, resp_data, &resp_len, 2000, cyapa_pip_sort_system_info_data, false); if (error || resp_len < sizeof(resp_data)) return error ? error : -EIO; product_family = get_unaligned_le16(&resp_data[7]); if ((product_family & PIP_PRODUCT_FAMILY_MASK) != PIP_PRODUCT_FAMILY_TRACKPAD) return -EINVAL; cyapa->platform_ver = (resp_data[49] >> PIP_BL_PLATFORM_VER_SHIFT) & PIP_BL_PLATFORM_VER_MASK; if (cyapa->gen == CYAPA_GEN5 && cyapa->platform_ver < 2) { /* Gen5 firmware that does not support proximity. */ cyapa->fw_maj_ver = resp_data[15]; cyapa->fw_min_ver = resp_data[16]; } else { cyapa->fw_maj_ver = resp_data[9]; cyapa->fw_min_ver = resp_data[10]; } cyapa->electrodes_x = resp_data[52]; cyapa->electrodes_y = resp_data[53]; cyapa->physical_size_x = get_unaligned_le16(&resp_data[54]) / 100; cyapa->physical_size_y = get_unaligned_le16(&resp_data[56]) / 100; cyapa->max_abs_x = get_unaligned_le16(&resp_data[58]); cyapa->max_abs_y = get_unaligned_le16(&resp_data[60]); cyapa->max_z = get_unaligned_le16(&resp_data[62]); cyapa->x_origin = resp_data[64] & 0x01; cyapa->y_origin = resp_data[65] & 0x01; cyapa->btn_capability = (resp_data[70] << 3) & CAPABILITY_BTN_MASK; memcpy(&cyapa->product_id[0], &resp_data[33], 5); cyapa->product_id[5] = '-'; memcpy(&cyapa->product_id[6], &resp_data[38], 6); cyapa->product_id[12] = '-'; memcpy(&cyapa->product_id[13], &resp_data[44], 2); cyapa->product_id[15] = '\0'; if (!cyapa->electrodes_x || !cyapa->electrodes_y || !cyapa->physical_size_x || !cyapa->physical_size_y || !cyapa->max_abs_x || !cyapa->max_abs_y || !cyapa->max_z) return -EINVAL; return 0; } static int cyapa_gen5_do_operational_check(struct cyapa *cyapa) { struct device *dev = &cyapa->client->dev; int error; if (cyapa->gen != CYAPA_GEN5) return -ENODEV; switch (cyapa->state) { case CYAPA_STATE_GEN5_BL: error = cyapa_pip_bl_exit(cyapa); if (error) { /* Try to update trackpad product information. */ cyapa_gen5_bl_query_data(cyapa); goto out; } cyapa->state = CYAPA_STATE_GEN5_APP; /* fall through */ case CYAPA_STATE_GEN5_APP: /* * If trackpad device in deep sleep mode, * the app command will fail. * So always try to reset trackpad device to full active when * the device state is required. */ error = cyapa_gen5_set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0, CYAPA_PM_ACTIVE); if (error) dev_warn(dev, "%s: failed to set power active mode.\n", __func__); /* By default, the trackpad proximity function is enabled. */ if (cyapa->platform_ver >= 2) { error = cyapa_pip_set_proximity(cyapa, true); if (error) dev_warn(dev, "%s: failed to enable proximity.\n", __func__); } /* Get trackpad product information. */ error = cyapa_gen5_get_query_data(cyapa); if (error) goto out; /* Only support product ID starting with CYTRA */ if (memcmp(cyapa->product_id, product_id, strlen(product_id)) != 0) { dev_err(dev, "%s: unknown product ID (%s)\n", __func__, cyapa->product_id); error = -EINVAL; } break; default: error = -EINVAL; } out: return error; } /* * Return false, do not continue process * Return true, continue process. */ bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa) { struct cyapa_pip_cmd_states *pip = &cyapa->cmd_states.pip; int length; if (atomic_read(&pip->cmd_issued)) { /* Polling command response data. */ if (pip->is_irq_mode == false) return false; /* * Read out all none command response data. * these output data may caused by user put finger on * trackpad when host waiting the command response. */ cyapa_i2c_pip_read(cyapa, pip->irq_cmd_buf, PIP_RESP_LENGTH_SIZE); length = get_unaligned_le16(pip->irq_cmd_buf); length = (length <= PIP_RESP_LENGTH_SIZE) ? PIP_RESP_LENGTH_SIZE : length; if (length > PIP_RESP_LENGTH_SIZE) cyapa_i2c_pip_read(cyapa, pip->irq_cmd_buf, length); if (!(pip->resp_sort_func && pip->resp_sort_func(cyapa, pip->irq_cmd_buf, length))) { /* * Cover the Gen5 V1 firmware issue. * The issue is no interrupt would be asserted from * trackpad device to host for the command response * ready event. Because when there was a finger touch * on trackpad device, and the firmware output queue * won't be empty (always with touch report data), so * the interrupt signal won't be asserted again until * the output queue was previous emptied. * This issue would happen in the scenario that * user always has his/her fingers touched on the * trackpad device during system booting/rebooting. */ length = 0; if (pip->resp_len) length = *pip->resp_len; cyapa_empty_pip_output_data(cyapa, pip->resp_data, &length, pip->resp_sort_func); if (pip->resp_len && length != 0) { *pip->resp_len = length; atomic_dec(&pip->cmd_issued); complete(&pip->cmd_ready); } return false; } if (pip->resp_data && pip->resp_len) { *pip->resp_len = (*pip->resp_len < length) ? *pip->resp_len : length; memcpy(pip->resp_data, pip->irq_cmd_buf, *pip->resp_len); } atomic_dec(&pip->cmd_issued); complete(&pip->cmd_ready); return false; } return true; } static void cyapa_pip_report_buttons(struct cyapa *cyapa, const struct cyapa_pip_report_data *report_data) { struct input_dev *input = cyapa->input; u8 buttons = report_data->report_head[PIP_BUTTONS_OFFSET]; buttons = (buttons << CAPABILITY_BTN_SHIFT) & CAPABILITY_BTN_MASK; if (cyapa->btn_capability & CAPABILITY_LEFT_BTN_MASK) { input_report_key(input, BTN_LEFT, !!(buttons & CAPABILITY_LEFT_BTN_MASK)); } if (cyapa->btn_capability & CAPABILITY_MIDDLE_BTN_MASK) { input_report_key(input, BTN_MIDDLE, !!(buttons & CAPABILITY_MIDDLE_BTN_MASK)); } if (cyapa->btn_capability & CAPABILITY_RIGHT_BTN_MASK) { input_report_key(input, BTN_RIGHT, !!(buttons & CAPABILITY_RIGHT_BTN_MASK)); } input_sync(input); } static void cyapa_pip_report_proximity(struct cyapa *cyapa, const struct cyapa_pip_report_data *report_data) { struct input_dev *input = cyapa->input; u8 distance = report_data->report_head[PIP_PROXIMITY_DISTANCE_OFFSET] & PIP_PROXIMITY_DISTANCE_MASK; input_report_abs(input, ABS_DISTANCE, distance); input_sync(input); } static void cyapa_pip_report_slot_data(struct cyapa *cyapa, const struct cyapa_pip_touch_record *touch) { struct input_dev *input = cyapa->input; u8 event_id = PIP_GET_EVENT_ID(touch->touch_tip_event_id); int slot = PIP_GET_TOUCH_ID(touch->touch_tip_event_id); int x, y; if (event_id == RECORD_EVENT_LIFTOFF) return; input_mt_slot(input, slot); input_mt_report_slot_state(input, MT_TOOL_FINGER, true); x = (touch->x_hi << 8) | touch->x_lo; if (cyapa->x_origin) x = cyapa->max_abs_x - x; y = (touch->y_hi << 8) | touch->y_lo; if (cyapa->y_origin) y = cyapa->max_abs_y - y; input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); input_report_abs(input, ABS_DISTANCE, 0); input_report_abs(input, ABS_MT_PRESSURE, touch->z); input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch->major_axis_len); input_report_abs(input, ABS_MT_TOUCH_MINOR, touch->minor_axis_len); input_report_abs(input, ABS_MT_WIDTH_MAJOR, touch->major_tool_len); input_report_abs(input, ABS_MT_WIDTH_MINOR, touch->minor_tool_len); input_report_abs(input, ABS_MT_ORIENTATION, touch->orientation); } static void cyapa_pip_report_touches(struct cyapa *cyapa, const struct cyapa_pip_report_data *report_data) { struct input_dev *input = cyapa->input; unsigned int touch_num; int i; touch_num = report_data->report_head[PIP_NUMBER_OF_TOUCH_OFFSET] & PIP_NUMBER_OF_TOUCH_MASK; for (i = 0; i < touch_num; i++) cyapa_pip_report_slot_data(cyapa, &report_data->touch_records[i]); input_mt_sync_frame(input); input_sync(input); } int cyapa_pip_irq_handler(struct cyapa *cyapa) { struct device *dev = &cyapa->client->dev; struct cyapa_pip_report_data report_data; unsigned int report_len; int ret; if (!cyapa_is_pip_app_mode(cyapa)) { dev_err(dev, "invalid device state, gen=%d, state=0x%02x\n", cyapa->gen, cyapa->state); return -EINVAL; } ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data, PIP_RESP_LENGTH_SIZE); if (ret != PIP_RESP_LENGTH_SIZE) { dev_err(dev, "failed to read length bytes, (%d)\n", ret); return -EINVAL; } report_len = get_unaligned_le16( &report_data.report_head[PIP_RESP_LENGTH_OFFSET]); if (report_len < PIP_RESP_LENGTH_SIZE) { /* Invalid length or internal reset happened. */ dev_err(dev, "invalid report_len=%d. bytes: %02x %02x\n", report_len, report_data.report_head[0], report_data.report_head[1]); return -EINVAL; } /* Idle, no data for report. */ if (report_len == PIP_RESP_LENGTH_SIZE) return 0; ret = cyapa_i2c_pip_read(cyapa, (u8 *)&report_data, report_len); if (ret != report_len) { dev_err(dev, "failed to read %d bytes report data, (%d)\n", report_len, ret); return -EINVAL; } return cyapa_pip_event_process(cyapa, &report_data); } static int cyapa_pip_event_process(struct cyapa *cyapa, struct cyapa_pip_report_data *report_data) { struct device *dev = &cyapa->client->dev; unsigned int report_len; u8 report_id; report_len = get_unaligned_le16( &report_data->report_head[PIP_RESP_LENGTH_OFFSET]); /* Idle, no data for report. */ if (report_len == PIP_RESP_LENGTH_SIZE) return 0; report_id = report_data->report_head[PIP_RESP_REPORT_ID_OFFSET]; if (report_id == PIP_WAKEUP_EVENT_REPORT_ID && report_len == PIP_WAKEUP_EVENT_SIZE) { /* * Device wake event from deep sleep mode for touch. * This interrupt event is used to wake system up. * * Note: * It will introduce about 20~40 ms additional delay * time in receiving for first valid touch report data. * The time is used to execute device runtime resume * process. */ pm_runtime_get_sync(dev); pm_runtime_mark_last_busy(dev); pm_runtime_put_sync_autosuspend(dev); return 0; } else if (report_id != PIP_TOUCH_REPORT_ID && report_id != PIP_BTN_REPORT_ID && report_id != GEN5_OLD_PUSH_BTN_REPORT_ID && report_id != PIP_PUSH_BTN_REPORT_ID && report_id != PIP_PROXIMITY_REPORT_ID) { /* Running in BL mode or unknown response data read. */ dev_err(dev, "invalid report_id=0x%02x\n", report_id); return -EINVAL; } if (report_id == PIP_TOUCH_REPORT_ID && (report_len < PIP_TOUCH_REPORT_HEAD_SIZE || report_len > PIP_TOUCH_REPORT_MAX_SIZE)) { /* Invalid report data length for finger packet. */ dev_err(dev, "invalid touch packet length=%d\n", report_len); return 0; } if ((report_id == PIP_BTN_REPORT_ID || report_id == GEN5_OLD_PUSH_BTN_REPORT_ID || report_id == PIP_PUSH_BTN_REPORT_ID) && (report_len < PIP_BTN_REPORT_HEAD_SIZE || report_len > PIP_BTN_REPORT_MAX_SIZE)) { /* Invalid report data length of button packet. */ dev_err(dev, "invalid button packet length=%d\n", report_len); return 0; } if (report_id == PIP_PROXIMITY_REPORT_ID && report_len != PIP_PROXIMITY_REPORT_SIZE) { /* Invalid report data length of proximity packet. */ dev_err(dev, "invalid proximity data, length=%d\n", report_len); return 0; } if (report_id == PIP_TOUCH_REPORT_ID) cyapa_pip_report_touches(cyapa, report_data); else if (report_id == PIP_PROXIMITY_REPORT_ID) cyapa_pip_report_proximity(cyapa, report_data); else cyapa_pip_report_buttons(cyapa, report_data); return 0; } int cyapa_pip_bl_activate(struct cyapa *cyapa) { return 0; } int cyapa_pip_bl_deactivate(struct cyapa *cyapa) { return 0; } const struct cyapa_dev_ops cyapa_gen5_ops = { .check_fw = cyapa_pip_check_fw, .bl_enter = cyapa_pip_bl_enter, .bl_initiate = cyapa_pip_bl_initiate, .update_fw = cyapa_pip_do_fw_update, .bl_activate = cyapa_pip_bl_activate, .bl_deactivate = cyapa_pip_bl_deactivate, .show_baseline = cyapa_gen5_show_baseline, .calibrate_store = cyapa_pip_do_calibrate, .initialize = cyapa_pip_cmd_state_initialize, .state_parse = cyapa_gen5_state_parse, .operational_check = cyapa_gen5_do_operational_check, .irq_handler = cyapa_pip_irq_handler, .irq_cmd_handler = cyapa_pip_irq_cmd_handler, .sort_empty_output_data = cyapa_empty_pip_output_data, .set_power_mode = cyapa_gen5_set_power_mode, .set_proximity = cyapa_pip_set_proximity, };
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