2019-06-04 11:11:33 +03:00
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// SPDX-License-Identifier: GPL-2.0-only
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2016-03-11 02:35:49 +03:00
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/*
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* Copyright (c) 2011-2016 Synaptics Incorporated
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* Copyright (c) 2011 Unixphere
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*/
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#include <linux/kernel.h>
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#include <linux/rmi.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/of.h>
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2017-02-01 02:44:49 +03:00
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#include <asm/unaligned.h>
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2016-03-11 02:35:49 +03:00
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#include "rmi_driver.h"
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#define RMI_PRODUCT_ID_LENGTH 10
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#define RMI_PRODUCT_INFO_LENGTH 2
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#define RMI_DATE_CODE_LENGTH 3
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#define PRODUCT_ID_OFFSET 0x10
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#define PRODUCT_INFO_OFFSET 0x1E
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/* Force a firmware reset of the sensor */
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#define RMI_F01_CMD_DEVICE_RESET 1
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/* Various F01_RMI_QueryX bits */
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#define RMI_F01_QRY1_CUSTOM_MAP BIT(0)
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#define RMI_F01_QRY1_NON_COMPLIANT BIT(1)
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#define RMI_F01_QRY1_HAS_LTS BIT(2)
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#define RMI_F01_QRY1_HAS_SENSOR_ID BIT(3)
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#define RMI_F01_QRY1_HAS_CHARGER_INP BIT(4)
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#define RMI_F01_QRY1_HAS_ADJ_DOZE BIT(5)
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#define RMI_F01_QRY1_HAS_ADJ_DOZE_HOFF BIT(6)
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#define RMI_F01_QRY1_HAS_QUERY42 BIT(7)
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#define RMI_F01_QRY5_YEAR_MASK 0x1f
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#define RMI_F01_QRY6_MONTH_MASK 0x0f
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#define RMI_F01_QRY7_DAY_MASK 0x1f
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#define RMI_F01_QRY2_PRODINFO_MASK 0x7f
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#define RMI_F01_BASIC_QUERY_LEN 21 /* From Query 00 through 20 */
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struct f01_basic_properties {
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u8 manufacturer_id;
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bool has_lts;
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bool has_adjustable_doze;
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bool has_adjustable_doze_holdoff;
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char dom[11]; /* YYYY/MM/DD + '\0' */
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u8 product_id[RMI_PRODUCT_ID_LENGTH + 1];
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u16 productinfo;
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u32 firmware_id;
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u32 package_id;
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2016-03-11 02:35:49 +03:00
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};
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/* F01 device status bits */
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/* Most recent device status event */
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#define RMI_F01_STATUS_CODE(status) ((status) & 0x0f)
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/* The device has lost its configuration for some reason. */
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#define RMI_F01_STATUS_UNCONFIGURED(status) (!!((status) & 0x80))
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2016-11-23 04:44:12 +03:00
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/* The device is in bootloader mode */
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#define RMI_F01_STATUS_BOOTLOADER(status) ((status) & 0x40)
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2016-03-11 02:35:49 +03:00
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/* Control register bits */
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/*
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* Sleep mode controls power management on the device and affects all
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* functions of the device.
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*/
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#define RMI_F01_CTRL0_SLEEP_MODE_MASK 0x03
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#define RMI_SLEEP_MODE_NORMAL 0x00
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#define RMI_SLEEP_MODE_SENSOR_SLEEP 0x01
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#define RMI_SLEEP_MODE_RESERVED0 0x02
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#define RMI_SLEEP_MODE_RESERVED1 0x03
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/*
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* This bit disables whatever sleep mode may be selected by the sleep_mode
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* field and forces the device to run at full power without sleeping.
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*/
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2016-05-19 19:22:49 +03:00
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#define RMI_F01_CTRL0_NOSLEEP_BIT BIT(2)
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/*
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* When this bit is set, the touch controller employs a noise-filtering
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* algorithm designed for use with a connected battery charger.
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*/
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#define RMI_F01_CTRL0_CHARGER_BIT BIT(5)
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/*
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* Sets the report rate for the device. The effect of this setting is
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* highly product dependent. Check the spec sheet for your particular
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* touch sensor.
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*/
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2016-05-19 19:22:49 +03:00
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#define RMI_F01_CTRL0_REPORTRATE_BIT BIT(6)
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/*
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* Written by the host as an indicator that the device has been
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* successfully configured.
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*/
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2016-05-19 19:22:49 +03:00
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#define RMI_F01_CTRL0_CONFIGURED_BIT BIT(7)
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/**
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2020-11-04 22:11:56 +03:00
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* struct f01_device_control - controls basic sensor functions
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*
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* @ctrl0: see the bit definitions above.
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* @doze_interval: controls the interval between checks for finger presence
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* when the touch sensor is in doze mode, in units of 10ms.
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* @wakeup_threshold: controls the capacitance threshold at which the touch
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* sensor will decide to wake up from that low power state.
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* @doze_holdoff: controls how long the touch sensor waits after the last
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* finger lifts before entering the doze state, in units of 100ms.
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2016-03-11 02:35:49 +03:00
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*/
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struct f01_device_control {
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u8 ctrl0;
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u8 doze_interval;
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u8 wakeup_threshold;
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u8 doze_holdoff;
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};
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struct f01_data {
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struct f01_basic_properties properties;
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struct f01_device_control device_control;
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u16 doze_interval_addr;
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u16 wakeup_threshold_addr;
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u16 doze_holdoff_addr;
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bool suspended;
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bool old_nosleep;
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unsigned int num_of_irq_regs;
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};
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static int rmi_f01_read_properties(struct rmi_device *rmi_dev,
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u16 query_base_addr,
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struct f01_basic_properties *props)
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{
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u8 queries[RMI_F01_BASIC_QUERY_LEN];
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int ret;
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int query_offset = query_base_addr;
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bool has_ds4_queries = false;
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bool has_query42 = false;
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bool has_sensor_id = false;
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bool has_package_id_query = false;
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bool has_build_id_query = false;
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u16 prod_info_addr;
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u8 ds4_query_len;
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ret = rmi_read_block(rmi_dev, query_offset,
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queries, RMI_F01_BASIC_QUERY_LEN);
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read device query registers: %d\n", ret);
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return ret;
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}
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prod_info_addr = query_offset + 17;
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query_offset += RMI_F01_BASIC_QUERY_LEN;
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/* Now parse what we got */
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props->manufacturer_id = queries[0];
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props->has_lts = queries[1] & RMI_F01_QRY1_HAS_LTS;
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props->has_adjustable_doze =
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queries[1] & RMI_F01_QRY1_HAS_ADJ_DOZE;
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props->has_adjustable_doze_holdoff =
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queries[1] & RMI_F01_QRY1_HAS_ADJ_DOZE_HOFF;
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has_query42 = queries[1] & RMI_F01_QRY1_HAS_QUERY42;
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has_sensor_id = queries[1] & RMI_F01_QRY1_HAS_SENSOR_ID;
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snprintf(props->dom, sizeof(props->dom), "20%02d/%02d/%02d",
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queries[5] & RMI_F01_QRY5_YEAR_MASK,
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queries[6] & RMI_F01_QRY6_MONTH_MASK,
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queries[7] & RMI_F01_QRY7_DAY_MASK);
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memcpy(props->product_id, &queries[11],
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RMI_PRODUCT_ID_LENGTH);
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props->product_id[RMI_PRODUCT_ID_LENGTH] = '\0';
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props->productinfo =
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((queries[2] & RMI_F01_QRY2_PRODINFO_MASK) << 7) |
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(queries[3] & RMI_F01_QRY2_PRODINFO_MASK);
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if (has_sensor_id)
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query_offset++;
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if (has_query42) {
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ret = rmi_read(rmi_dev, query_offset, queries);
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read query 42 register: %d\n", ret);
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return ret;
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}
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has_ds4_queries = !!(queries[0] & BIT(0));
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query_offset++;
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}
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if (has_ds4_queries) {
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ret = rmi_read(rmi_dev, query_offset, &ds4_query_len);
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read DS4 queries length: %d\n", ret);
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return ret;
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}
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query_offset++;
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if (ds4_query_len > 0) {
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ret = rmi_read(rmi_dev, query_offset, queries);
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read DS4 queries: %d\n",
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ret);
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return ret;
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}
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has_package_id_query = !!(queries[0] & BIT(0));
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has_build_id_query = !!(queries[0] & BIT(1));
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}
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2017-02-01 02:44:49 +03:00
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if (has_package_id_query) {
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ret = rmi_read_block(rmi_dev, prod_info_addr,
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queries, sizeof(__le64));
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read package info: %d\n",
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ret);
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return ret;
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}
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props->package_id = get_unaligned_le64(queries);
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2016-03-11 02:35:49 +03:00
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prod_info_addr++;
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2017-02-01 02:44:49 +03:00
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}
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2016-03-11 02:35:49 +03:00
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if (has_build_id_query) {
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ret = rmi_read_block(rmi_dev, prod_info_addr, queries,
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3);
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if (ret) {
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dev_err(&rmi_dev->dev,
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"Failed to read product info: %d\n",
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ret);
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return ret;
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}
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props->firmware_id = queries[1] << 8 | queries[0];
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props->firmware_id += queries[2] * 65536;
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}
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}
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return 0;
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}
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2017-02-01 02:44:49 +03:00
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const char *rmi_f01_get_product_ID(struct rmi_function *fn)
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{
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struct f01_data *f01 = dev_get_drvdata(&fn->dev);
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return f01->properties.product_id;
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}
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2017-02-01 02:44:49 +03:00
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static ssize_t rmi_driver_manufacturer_id_show(struct device *dev,
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struct device_attribute *dattr,
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char *buf)
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{
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struct rmi_driver_data *data = dev_get_drvdata(dev);
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struct f01_data *f01 = dev_get_drvdata(&data->f01_container->dev);
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return scnprintf(buf, PAGE_SIZE, "%d\n",
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f01->properties.manufacturer_id);
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}
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static DEVICE_ATTR(manufacturer_id, 0444,
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rmi_driver_manufacturer_id_show, NULL);
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static ssize_t rmi_driver_dom_show(struct device *dev,
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struct device_attribute *dattr, char *buf)
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{
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struct rmi_driver_data *data = dev_get_drvdata(dev);
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struct f01_data *f01 = dev_get_drvdata(&data->f01_container->dev);
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return scnprintf(buf, PAGE_SIZE, "%s\n", f01->properties.dom);
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}
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static DEVICE_ATTR(date_of_manufacture, 0444, rmi_driver_dom_show, NULL);
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static ssize_t rmi_driver_product_id_show(struct device *dev,
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struct device_attribute *dattr,
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char *buf)
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{
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struct rmi_driver_data *data = dev_get_drvdata(dev);
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struct f01_data *f01 = dev_get_drvdata(&data->f01_container->dev);
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return scnprintf(buf, PAGE_SIZE, "%s\n", f01->properties.product_id);
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}
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static DEVICE_ATTR(product_id, 0444, rmi_driver_product_id_show, NULL);
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static ssize_t rmi_driver_firmware_id_show(struct device *dev,
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struct device_attribute *dattr,
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char *buf)
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{
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struct rmi_driver_data *data = dev_get_drvdata(dev);
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struct f01_data *f01 = dev_get_drvdata(&data->f01_container->dev);
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return scnprintf(buf, PAGE_SIZE, "%d\n", f01->properties.firmware_id);
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}
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static DEVICE_ATTR(firmware_id, 0444, rmi_driver_firmware_id_show, NULL);
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static ssize_t rmi_driver_package_id_show(struct device *dev,
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struct device_attribute *dattr,
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char *buf)
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{
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struct rmi_driver_data *data = dev_get_drvdata(dev);
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struct f01_data *f01 = dev_get_drvdata(&data->f01_container->dev);
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u32 package_id = f01->properties.package_id;
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return scnprintf(buf, PAGE_SIZE, "%04x.%04x\n",
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package_id & 0xffff, (package_id >> 16) & 0xffff);
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}
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static DEVICE_ATTR(package_id, 0444, rmi_driver_package_id_show, NULL);
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static struct attribute *rmi_f01_attrs[] = {
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&dev_attr_manufacturer_id.attr,
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&dev_attr_date_of_manufacture.attr,
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&dev_attr_product_id.attr,
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&dev_attr_firmware_id.attr,
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&dev_attr_package_id.attr,
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NULL
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};
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2017-07-11 06:17:05 +03:00
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static const struct attribute_group rmi_f01_attr_group = {
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.attrs = rmi_f01_attrs,
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};
|
|
|
|
|
2016-03-11 02:46:32 +03:00
|
|
|
#ifdef CONFIG_OF
|
|
|
|
static int rmi_f01_of_probe(struct device *dev,
|
|
|
|
struct rmi_device_platform_data *pdata)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
u32 val;
|
|
|
|
|
|
|
|
retval = rmi_of_property_read_u32(dev,
|
|
|
|
(u32 *)&pdata->power_management.nosleep,
|
|
|
|
"syna,nosleep-mode", 1);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
retval = rmi_of_property_read_u32(dev, &val,
|
|
|
|
"syna,wakeup-threshold", 1);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
pdata->power_management.wakeup_threshold = val;
|
|
|
|
|
|
|
|
retval = rmi_of_property_read_u32(dev, &val,
|
|
|
|
"syna,doze-holdoff-ms", 1);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
pdata->power_management.doze_holdoff = val * 100;
|
|
|
|
|
|
|
|
retval = rmi_of_property_read_u32(dev, &val,
|
|
|
|
"syna,doze-interval-ms", 1);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
pdata->power_management.doze_interval = val / 10;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
static inline int rmi_f01_of_probe(struct device *dev,
|
|
|
|
struct rmi_device_platform_data *pdata)
|
|
|
|
{
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2016-03-11 02:35:49 +03:00
|
|
|
static int rmi_f01_probe(struct rmi_function *fn)
|
|
|
|
{
|
|
|
|
struct rmi_device *rmi_dev = fn->rmi_dev;
|
|
|
|
struct rmi_driver_data *driver_data = dev_get_drvdata(&rmi_dev->dev);
|
|
|
|
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
|
|
|
|
struct f01_data *f01;
|
|
|
|
int error;
|
|
|
|
u16 ctrl_base_addr = fn->fd.control_base_addr;
|
|
|
|
u8 device_status;
|
|
|
|
u8 temp;
|
|
|
|
|
2016-03-11 02:46:32 +03:00
|
|
|
if (fn->dev.of_node) {
|
|
|
|
error = rmi_f01_of_probe(&fn->dev, pdata);
|
|
|
|
if (error)
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
2016-03-11 02:35:49 +03:00
|
|
|
f01 = devm_kzalloc(&fn->dev, sizeof(struct f01_data), GFP_KERNEL);
|
|
|
|
if (!f01)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
f01->num_of_irq_regs = driver_data->num_of_irq_regs;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set the configured bit and (optionally) other important stuff
|
|
|
|
* in the device control register.
|
|
|
|
*/
|
|
|
|
|
|
|
|
error = rmi_read(rmi_dev, fn->fd.control_base_addr,
|
|
|
|
&f01->device_control.ctrl0);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev, "Failed to read F01 control: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (pdata->power_management.nosleep) {
|
2016-11-09 03:48:48 +03:00
|
|
|
case RMI_REG_STATE_DEFAULT:
|
2016-03-11 02:35:49 +03:00
|
|
|
break;
|
2016-11-09 03:48:48 +03:00
|
|
|
case RMI_REG_STATE_OFF:
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_NOSLEEP_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
break;
|
2016-11-09 03:48:48 +03:00
|
|
|
case RMI_REG_STATE_ON:
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 |= RMI_F01_CTRL0_NOSLEEP_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sleep mode might be set as a hangover from a system crash or
|
|
|
|
* reboot without power cycle. If so, clear it so the sensor
|
|
|
|
* is certain to function.
|
|
|
|
*/
|
|
|
|
if ((f01->device_control.ctrl0 & RMI_F01_CTRL0_SLEEP_MODE_MASK) !=
|
|
|
|
RMI_SLEEP_MODE_NORMAL) {
|
|
|
|
dev_warn(&fn->dev,
|
|
|
|
"WARNING: Non-zero sleep mode found. Clearing...\n");
|
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
|
|
|
|
}
|
|
|
|
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 |= RMI_F01_CTRL0_CONFIGURED_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
|
|
|
|
error = rmi_write(rmi_dev, fn->fd.control_base_addr,
|
|
|
|
f01->device_control.ctrl0);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev, "Failed to write F01 control: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Dummy read in order to clear irqs */
|
|
|
|
error = rmi_read(rmi_dev, fn->fd.data_base_addr + 1, &temp);
|
|
|
|
if (error < 0) {
|
|
|
|
dev_err(&fn->dev, "Failed to read Interrupt Status.\n");
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
error = rmi_f01_read_properties(rmi_dev, fn->fd.query_base_addr,
|
|
|
|
&f01->properties);
|
|
|
|
if (error < 0) {
|
|
|
|
dev_err(&fn->dev, "Failed to read F01 properties.\n");
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_info(&fn->dev, "found RMI device, manufacturer: %s, product: %s, fw id: %d\n",
|
|
|
|
f01->properties.manufacturer_id == 1 ? "Synaptics" : "unknown",
|
|
|
|
f01->properties.product_id, f01->properties.firmware_id);
|
|
|
|
|
|
|
|
/* Advance to interrupt control registers, then skip over them. */
|
|
|
|
ctrl_base_addr++;
|
|
|
|
ctrl_base_addr += f01->num_of_irq_regs;
|
|
|
|
|
|
|
|
/* read control register */
|
|
|
|
if (f01->properties.has_adjustable_doze) {
|
|
|
|
f01->doze_interval_addr = ctrl_base_addr;
|
|
|
|
ctrl_base_addr++;
|
|
|
|
|
|
|
|
if (pdata->power_management.doze_interval) {
|
|
|
|
f01->device_control.doze_interval =
|
|
|
|
pdata->power_management.doze_interval;
|
|
|
|
error = rmi_write(rmi_dev, f01->doze_interval_addr,
|
|
|
|
f01->device_control.doze_interval);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to configure F01 doze interval register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
error = rmi_read(rmi_dev, f01->doze_interval_addr,
|
|
|
|
&f01->device_control.doze_interval);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to read F01 doze interval register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
f01->wakeup_threshold_addr = ctrl_base_addr;
|
|
|
|
ctrl_base_addr++;
|
|
|
|
|
|
|
|
if (pdata->power_management.wakeup_threshold) {
|
|
|
|
f01->device_control.wakeup_threshold =
|
|
|
|
pdata->power_management.wakeup_threshold;
|
|
|
|
error = rmi_write(rmi_dev, f01->wakeup_threshold_addr,
|
|
|
|
f01->device_control.wakeup_threshold);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to configure F01 wakeup threshold register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
error = rmi_read(rmi_dev, f01->wakeup_threshold_addr,
|
|
|
|
&f01->device_control.wakeup_threshold);
|
|
|
|
if (error < 0) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to read F01 wakeup threshold register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f01->properties.has_lts)
|
|
|
|
ctrl_base_addr++;
|
|
|
|
|
|
|
|
if (f01->properties.has_adjustable_doze_holdoff) {
|
|
|
|
f01->doze_holdoff_addr = ctrl_base_addr;
|
|
|
|
ctrl_base_addr++;
|
|
|
|
|
|
|
|
if (pdata->power_management.doze_holdoff) {
|
|
|
|
f01->device_control.doze_holdoff =
|
|
|
|
pdata->power_management.doze_holdoff;
|
|
|
|
error = rmi_write(rmi_dev, f01->doze_holdoff_addr,
|
|
|
|
f01->device_control.doze_holdoff);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to configure F01 doze holdoff register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
error = rmi_read(rmi_dev, f01->doze_holdoff_addr,
|
|
|
|
&f01->device_control.doze_holdoff);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to read F01 doze holdoff register: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
error = rmi_read(rmi_dev, fn->fd.data_base_addr, &device_status);
|
|
|
|
if (error < 0) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to read device status: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (RMI_F01_STATUS_UNCONFIGURED(device_status)) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Device was reset during configuration process, status: %#02x!\n",
|
|
|
|
RMI_F01_STATUS_CODE(device_status));
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_set_drvdata(&fn->dev, f01);
|
|
|
|
|
2018-01-25 00:46:04 +03:00
|
|
|
error = sysfs_create_group(&fn->rmi_dev->dev.kobj, &rmi_f01_attr_group);
|
2017-02-01 02:44:49 +03:00
|
|
|
if (error)
|
2018-01-25 00:46:04 +03:00
|
|
|
dev_warn(&fn->dev, "Failed to create sysfs group: %d\n", error);
|
2017-02-01 02:44:49 +03:00
|
|
|
|
2016-03-11 02:35:49 +03:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-25 00:46:04 +03:00
|
|
|
static void rmi_f01_remove(struct rmi_function *fn)
|
|
|
|
{
|
|
|
|
/* Note that the bus device is used, not the F01 device */
|
|
|
|
sysfs_remove_group(&fn->rmi_dev->dev.kobj, &rmi_f01_attr_group);
|
|
|
|
}
|
|
|
|
|
2016-03-11 02:35:49 +03:00
|
|
|
static int rmi_f01_config(struct rmi_function *fn)
|
|
|
|
{
|
|
|
|
struct f01_data *f01 = dev_get_drvdata(&fn->dev);
|
|
|
|
int error;
|
|
|
|
|
|
|
|
error = rmi_write(fn->rmi_dev, fn->fd.control_base_addr,
|
|
|
|
f01->device_control.ctrl0);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to write device_control register: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f01->properties.has_adjustable_doze) {
|
|
|
|
error = rmi_write(fn->rmi_dev, f01->doze_interval_addr,
|
|
|
|
f01->device_control.doze_interval);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to write doze interval: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
error = rmi_write_block(fn->rmi_dev,
|
|
|
|
f01->wakeup_threshold_addr,
|
|
|
|
&f01->device_control.wakeup_threshold,
|
|
|
|
sizeof(u8));
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to write wakeup threshold: %d\n",
|
|
|
|
error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (f01->properties.has_adjustable_doze_holdoff) {
|
|
|
|
error = rmi_write(fn->rmi_dev, f01->doze_holdoff_addr,
|
|
|
|
f01->device_control.doze_holdoff);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to write doze holdoff: %d\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int rmi_f01_suspend(struct rmi_function *fn)
|
|
|
|
{
|
|
|
|
struct f01_data *f01 = dev_get_drvdata(&fn->dev);
|
|
|
|
int error;
|
|
|
|
|
|
|
|
f01->old_nosleep =
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 & RMI_F01_CTRL0_NOSLEEP_BIT;
|
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_NOSLEEP_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
|
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
|
|
|
|
if (device_may_wakeup(fn->rmi_dev->xport->dev))
|
|
|
|
f01->device_control.ctrl0 |= RMI_SLEEP_MODE_RESERVED1;
|
|
|
|
else
|
|
|
|
f01->device_control.ctrl0 |= RMI_SLEEP_MODE_SENSOR_SLEEP;
|
|
|
|
|
|
|
|
error = rmi_write(fn->rmi_dev, fn->fd.control_base_addr,
|
|
|
|
f01->device_control.ctrl0);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev, "Failed to write sleep mode: %d.\n", error);
|
|
|
|
if (f01->old_nosleep)
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 |= RMI_F01_CTRL0_NOSLEEP_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
|
|
|
|
f01->device_control.ctrl0 |= RMI_SLEEP_MODE_NORMAL;
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int rmi_f01_resume(struct rmi_function *fn)
|
|
|
|
{
|
|
|
|
struct f01_data *f01 = dev_get_drvdata(&fn->dev);
|
|
|
|
int error;
|
|
|
|
|
|
|
|
if (f01->old_nosleep)
|
2016-05-19 19:22:49 +03:00
|
|
|
f01->device_control.ctrl0 |= RMI_F01_CTRL0_NOSLEEP_BIT;
|
2016-03-11 02:35:49 +03:00
|
|
|
|
|
|
|
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
|
|
|
|
f01->device_control.ctrl0 |= RMI_SLEEP_MODE_NORMAL;
|
|
|
|
|
|
|
|
error = rmi_write(fn->rmi_dev, fn->fd.control_base_addr,
|
|
|
|
f01->device_control.ctrl0);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to restore normal operation: %d.\n", error);
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-06-05 20:17:51 +03:00
|
|
|
static irqreturn_t rmi_f01_attention(int irq, void *ctx)
|
2016-03-11 02:35:49 +03:00
|
|
|
{
|
2018-06-05 20:17:51 +03:00
|
|
|
struct rmi_function *fn = ctx;
|
2016-03-11 02:35:49 +03:00
|
|
|
struct rmi_device *rmi_dev = fn->rmi_dev;
|
|
|
|
int error;
|
|
|
|
u8 device_status;
|
|
|
|
|
|
|
|
error = rmi_read(rmi_dev, fn->fd.data_base_addr, &device_status);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev,
|
|
|
|
"Failed to read device status: %d.\n", error);
|
2018-06-05 20:17:51 +03:00
|
|
|
return IRQ_RETVAL(error);
|
2016-03-11 02:35:49 +03:00
|
|
|
}
|
|
|
|
|
2016-11-23 04:44:12 +03:00
|
|
|
if (RMI_F01_STATUS_BOOTLOADER(device_status))
|
|
|
|
dev_warn(&fn->dev,
|
|
|
|
"Device in bootloader mode, please update firmware\n");
|
|
|
|
|
2016-03-11 02:35:49 +03:00
|
|
|
if (RMI_F01_STATUS_UNCONFIGURED(device_status)) {
|
|
|
|
dev_warn(&fn->dev, "Device reset detected.\n");
|
|
|
|
error = rmi_dev->driver->reset_handler(rmi_dev);
|
|
|
|
if (error) {
|
|
|
|
dev_err(&fn->dev, "Device reset failed: %d\n", error);
|
2018-06-05 20:17:51 +03:00
|
|
|
return IRQ_RETVAL(error);
|
2016-03-11 02:35:49 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-06-05 20:17:51 +03:00
|
|
|
return IRQ_HANDLED;
|
2016-03-11 02:35:49 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
struct rmi_function_handler rmi_f01_handler = {
|
|
|
|
.driver = {
|
|
|
|
.name = "rmi4_f01",
|
|
|
|
/*
|
|
|
|
* Do not allow user unbinding F01 as it is critical
|
|
|
|
* function.
|
|
|
|
*/
|
|
|
|
.suppress_bind_attrs = true,
|
|
|
|
},
|
|
|
|
.func = 0x01,
|
|
|
|
.probe = rmi_f01_probe,
|
2018-01-25 00:46:04 +03:00
|
|
|
.remove = rmi_f01_remove,
|
2016-03-11 02:35:49 +03:00
|
|
|
.config = rmi_f01_config,
|
|
|
|
.attention = rmi_f01_attention,
|
|
|
|
.suspend = rmi_f01_suspend,
|
|
|
|
.resume = rmi_f01_resume,
|
|
|
|
};
|