* eliminate packed struct bitfield definitions.
* removes sysfs/debugfs from the core functionality.
* refactors register definitions into rmi_f01.h for use by external modules
implementing sysfs/debugfs control and debug functions.
* adds query register parsing to extract the touch sensor firmare build ID.
Signed-off-by: Christopher Heiny <cheiny@xxxxxxxxxxxxx>
Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxxxxxx>
Cc: Joeri de Gram <j.de.gram@xxxxxxxxx>
---
drivers/input/rmi4/rmi_f01.c | 1314 ++++++++++--------------------------------
drivers/input/rmi4/rmi_f01.h | 269 +++++++++
2 files changed, 568 insertions(+), 1015 deletions(-)
diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c
index fe26869..7172ac6 100644
--- a/drivers/input/rmi4/rmi_f01.c
+++ b/drivers/input/rmi4/rmi_f01.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2011-2012 Synaptics Incorporated
+ * Copyright (c) 2011-2013 Synaptics Incorporated
* Copyright (c) 2011 Unixphere
*
* This program is free software; you can redistribute it and/or modify it
@@ -8,919 +8,18 @@
*/
#include <linux/kernel.h>
-#include <linux/debugfs.h>
#include <linux/kconfig.h>
#include <linux/rmi.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
-#include "rmi_driver.h"
-
-#define RMI_PRODUCT_ID_LENGTH 10
-#define RMI_PRODUCT_INFO_LENGTH 2
-
-#define RMI_DATE_CODE_LENGTH 3
-
-#define PRODUCT_ID_OFFSET 0x10
-#define PRODUCT_INFO_OFFSET 0x1E
-
-
-/* Force a firmware reset of the sensor */
-#define RMI_F01_CMD_DEVICE_RESET 1
-
-/* Various F01_RMI_QueryX bits */
-
-#define RMI_F01_QRY1_CUSTOM_MAP (1 << 0)
-#define RMI_F01_QRY1_NON_COMPLIANT (1 << 1)
-#define RMI_F01_QRY1_HAS_LTS (1 << 2)
-#define RMI_F01_QRY1_HAS_SENSOR_ID (1 << 3)
-#define RMI_F01_QRY1_HAS_CHARGER_INP (1 << 4)
-#define RMI_F01_QRY1_HAS_ADJ_DOZE (1 << 5)
-#define RMI_F01_QRY1_HAS_ADJ_DOZE_HOFF (1 << 6)
-#define RMI_F01_QRY1_HAS_PROPS_2 (1 << 7)
-
-#define RMI_F01_QRY5_YEAR_MASK 0x1f
-#define RMI_F01_QRY6_MONTH_MASK 0x0f
-#define RMI_F01_QRY7_DAY_MASK 0x1f
-
-#define RMI_F01_QRY2_PRODINFO_MASK 0x7f
-
-#define RMI_F01_BASIC_QUERY_LEN 21 /* From Query 00 through 20 */
-
-struct f01_basic_properties {
- u8 manufacturer_id;
- bool has_lts;
- bool has_adjustable_doze;
- bool has_adjustable_doze_holdoff;
- char dom[9]; /* YYYYMMDD + '\0' */
- u8 product_id[RMI_PRODUCT_ID_LENGTH + 1];
- u16 productinfo;
-};
-
-/* F01 device status bits */
-
-/* Most recent device status event */
-#define RMI_F01_STATUS_CODE(status) ((status) & 0x0f)
-/* Indicates that flash programming is enabled (bootloader mode). */
-#define RMI_F01_STATUS_BOOTLOADER(status) (!!((status) & 0x40))
-/* The device has lost its configuration for some reason. */
-#define RMI_F01_STATUS_UNCONFIGURED(status) (!!((status) & 0x80))
-
-/* Control register bits */
-
-/*
- * Sleep mode controls power management on the device and affects all
- * functions of the device.
- */
-#define RMI_F01_CTRL0_SLEEP_MODE_MASK 0x03
-
-#define RMI_SLEEP_MODE_NORMAL 0x00
-#define RMI_SLEEP_MODE_SENSOR_SLEEP 0x01
-#define RMI_SLEEP_MODE_RESERVED0 0x02
-#define RMI_SLEEP_MODE_RESERVED1 0x03
-
-#define RMI_IS_VALID_SLEEPMODE(mode) \
- (mode >= RMI_SLEEP_MODE_NORMAL && mode <= RMI_SLEEP_MODE_RESERVED1)
-
-/*
- * This bit disables whatever sleep mode may be selected by the sleep_mode
- * field and forces the device to run at full power without sleeping.
- */
-#define RMI_F01_CRTL0_NOSLEEP_BIT (1 << 2)
-
-/*
- * When this bit is set, the touch controller employs a noise-filtering
- * algorithm designed for use with a connected battery charger.
- */
-#define RMI_F01_CRTL0_CHARGER_BIT (1 << 5)
-
-/*
- * Sets the report rate for the device. The effect of this setting is
- * highly product dependent. Check the spec sheet for your particular
- * touch sensor.
- */
-#define RMI_F01_CRTL0_REPORTRATE_BIT (1 << 6)
-
-/*
- * Written by the host as an indicator that the device has been
- * successfully configured.
- */
-#define RMI_F01_CRTL0_CONFIGURED_BIT (1 << 7)
-
-/**
- * @ctrl0 - see the bit definitions above.
- * @interrupt_enable - A mask of per-function interrupts on the touch sensor.
- * @doze_interval - controls the interval between checks for finger presence
- * when the touch sensor is in doze mode, in units of 10ms.
- * @wakeup_threshold - controls the capacitance threshold at which the touch
- * sensor will decide to wake up from that low power state.
- * @doze_holdoff - controls how long the touch sensor waits after the last
- * finger lifts before entering the doze state, in units of 100ms.
- */
-struct f01_device_control {
- u8 ctrl0;
- u8 *interrupt_enable;
- u8 doze_interval;
- u8 wakeup_threshold;
- u8 doze_holdoff;
-};
-
-struct f01_data {
- struct f01_basic_properties properties;
-
- struct f01_device_control device_control;
- struct mutex control_mutex;
-
- u8 device_status;
-
- u16 interrupt_enable_addr;
- u16 doze_interval_addr;
- u16 wakeup_threshold_addr;
- u16 doze_holdoff_addr;
- int irq_count;
- int num_of_irq_regs;
-
-#ifdef CONFIG_PM
- bool suspended;
- bool old_nosleep;
-#endif
-
-#ifdef CONFIG_RMI4_DEBUG
- struct dentry *debugfs_interrupt_enable;
-#endif
-};
-
-#ifdef CONFIG_RMI4_DEBUG
-struct f01_debugfs_data {
- bool done;
- struct rmi_function *fn;
-};
-
-static int f01_debug_open(struct inode *inodep, struct file *filp)
-{
- struct f01_debugfs_data *data;
- struct rmi_function *fn = inodep->i_private;
-
- data = kzalloc(sizeof(struct f01_debugfs_data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- data->fn = fn;
- filp->private_data = data;
- return 0;
-}
-
-static int f01_debug_release(struct inode *inodep, struct file *filp)
-{
- kfree(filp->private_data);
- return 0;
-}
-
-static ssize_t interrupt_enable_read(struct file *filp, char __user *buffer,
- size_t size, loff_t *offset) {
- int i;
- int len;
- int total_len = 0;
- char local_buf[size]; // FIXME!!!! XXX arbitrary size array on stack
- char *current_buf = local_buf;
- struct f01_debugfs_data *data = filp->private_data;
- struct f01_data *f01 = data->fn->data;
-
- if (data->done)
- return 0;
-
- data->done = 1;
-
- /* loop through each irq value and copy its
- * string representation into buf */
- for (i = 0; i < f01->irq_count; i++) {
- int irq_reg;
- int irq_shift;
- int interrupt_enable;
-
- irq_reg = i / 8;
- irq_shift = i % 8;
- interrupt_enable =
- ((f01->device_control.interrupt_enable[irq_reg]
- >> irq_shift) & 0x01);
-
- /* get next irq value and write it to buf */
- len = snprintf(current_buf, size - total_len,
- "%u ", interrupt_enable);
- /* bump up ptr to next location in buf if the
- * snprintf was valid. Otherwise issue an error
- * and return. */
- if (len > 0) {
- current_buf += len;
- total_len += len;
- } else {
- dev_err(&data->fn->dev, "Failed to build interrupt_enable buffer, code = %d.\n",
- len);
- return snprintf(local_buf, size, "unknown\n");
- }
- }
- len = snprintf(current_buf, size - total_len, "\n");
- if (len > 0)
- total_len += len;
- else
- dev_warn(&data->fn->dev, "%s: Failed to append carriage return.\n",
- __func__);
-
- if (copy_to_user(buffer, local_buf, total_len))
- return -EFAULT;
-
- return total_len;
-}
-
-static ssize_t interrupt_enable_write(struct file *filp,
- const char __user *buffer, size_t size, loff_t *offset) {
- int retval;
- char buf[size];
- char *local_buf = buf;
- int i;
- int irq_count = 0;
- int irq_reg = 0;
- struct f01_debugfs_data *data = filp->private_data;
- struct f01_data *f01 = data->fn->data;
-
- retval = copy_from_user(buf, buffer, size);
- if (retval)
- return -EFAULT;
-
- for (i = 0; i < f01->irq_count && *local_buf != 0;
- i++, local_buf += 2) {
- int irq_shift;
- int interrupt_enable;
- int result;
-
- irq_reg = i / 8;
- irq_shift = i % 8;
-
- /* get next interrupt mapping value and store and bump up to
- * point to next item in local_buf */
- result = sscanf(local_buf, "%u", &interrupt_enable);
- if ((result != 1) ||
- (interrupt_enable != 0 && interrupt_enable != 1)) {
- dev_err(&data->fn->dev, "Interrupt enable[%d] is not a valid value 0x%x.\n",
- i, interrupt_enable);
- return -EINVAL;
- }
- if (interrupt_enable == 0) {
- f01->device_control.interrupt_enable[irq_reg] &=
- (1 << irq_shift) ^ 0xFF;
- } else
- f01->device_control.interrupt_enable[irq_reg] |=
- (1 << irq_shift);
- irq_count++;
- }
-
- /* Make sure the irq count matches */
- if (irq_count != f01->irq_count) {
- dev_err(&data->fn->dev, "Interrupt enable count of %d doesn't match device count of %d.\n",
- irq_count, f01->irq_count);
- return -EINVAL;
- }
-
- /* write back to the control register */
- retval = rmi_write_block(data->fn->rmi_dev, f01->interrupt_enable_addr,
- f01->device_control.interrupt_enable,
- f01->num_of_irq_regs);
- if (retval < 0) {
- dev_err(&data->fn->dev, "Could not write interrupt_enable mask to %#06x\n",
- f01->interrupt_enable_addr);
- return retval;
- }
-
- return size;
-}
-
-static const struct file_operations interrupt_enable_fops = {
- .owner = THIS_MODULE,
- .open = f01_debug_open,
- .release = f01_debug_release,
- .read = interrupt_enable_read,
- .write = interrupt_enable_write,
-};
-
-static int setup_debugfs(struct rmi_function *fn)
-{
- struct f01_data *data = fn->data;
-
- if (!fn->debugfs_root)
- return -ENODEV;
-
- data->debugfs_interrupt_enable = debugfs_create_file("interrupt_enable",
- RMI_RW_ATTR, fn->debugfs_root, fn, &interrupt_enable_fops);
- if (!data->debugfs_interrupt_enable)
- dev_warn(&fn->dev,
- "Failed to create debugfs interrupt_enable.\n");
-
- return 0;
-}
-
-static void teardown_debugfs(struct f01_data *f01)
-{
- if (f01->debugfs_interrupt_enable)
- debugfs_remove(f01->debugfs_interrupt_enable);
-}
-
-#else
-
-static inline int setup_debugfs(struct rmi_function *fn)
-{
- return 0;
-}
-
-static inline void teardown_debugfs(struct f01_data *f01)
-{
-}
-
-#endif
-
-static ssize_t rmi_fn_01_productinfo_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "0x%04x\n",
- data->properties.productinfo);
-}
-
-static ssize_t rmi_fn_01_productid_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%s\n", data->properties.product_id);
-}
-
-static ssize_t rmi_fn_01_manufacturer_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "0x%02x\n",
- data->properties.manufacturer_id);
-}
-
-static ssize_t rmi_fn_01_datecode_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%s\n", data->properties.dom);
-}
-
-static ssize_t rmi_fn_01_reset_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- unsigned int reset;
- int error;
-
- if (sscanf(buf, "%u", &reset) != 1)
- return -EINVAL;
- if (reset < 0 || reset > 1)
- return -EINVAL;
-
- /* Per spec, 0 has no effect, so we skip it entirely. */
- if (reset) {
- /* Command register always reads as 0, so just use a local. */
- u8 command = RMI_F01_CMD_DEVICE_RESET;
-
- error = rmi_write_block(fn->rmi_dev, fn->fd.command_base_addr,
- &command, sizeof(command));
- if (error < 0) {
- dev_err(dev, "Failed to issue reset command, code = %d.",
- error);
- return error;
- }
- }
-
- return count;
-}
-
-static ssize_t rmi_fn_01_sleepmode_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned int value = data->device_control.ctrl0 &
- RMI_F01_CTRL0_SLEEP_MODE_MASK;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-static ssize_t rmi_fn_01_sleepmode_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || !RMI_IS_VALID_SLEEPMODE(new_value)) {
- dev_err(dev, "%s: Invalid sleep mode %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- dev_dbg(dev, "Setting sleep mode to %ld.", new_value);
-
- data->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
- data->device_control.ctrl0 |= new_value;
-
- retval = rmi_write_block(fn->rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write sleep mode, code %d.\n", retval);
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_nosleep_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned int value = !!(data->device_control.ctrl0 &
- RMI_F01_CRTL0_NOSLEEP_BIT);
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-static ssize_t rmi_fn_01_nosleep_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 1) {
- dev_err(dev, "%s: Invalid nosleep bit %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- if (new_value)
- data->device_control.ctrl0 |= RMI_F01_CRTL0_NOSLEEP_BIT;
- else
- data->device_control.ctrl0 &= ~RMI_F01_CRTL0_NOSLEEP_BIT;
-
- retval = rmi_write_block(fn->rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write nosleep bit.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_chargerinput_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned int value = !!(data->device_control.ctrl0 &
- RMI_F01_CRTL0_CHARGER_BIT);
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-static ssize_t rmi_fn_01_chargerinput_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 1) {
- dev_err(dev, "%s: Invalid chargerinput bit %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- if (new_value)
- data->device_control.ctrl0 |= RMI_F01_CRTL0_CHARGER_BIT;
- else
- data->device_control.ctrl0 &= ~RMI_F01_CRTL0_CHARGER_BIT;
-
- retval = rmi_write_block(fn->rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write chargerinput bit.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_reportrate_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- int value = !!(data->device_control.ctrl0 &
- RMI_F01_CRTL0_REPORTRATE_BIT);
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-static ssize_t rmi_fn_01_reportrate_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 1) {
- dev_err(dev, "%s: Invalid reportrate bit %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- if (new_value)
- data->device_control.ctrl0 |= RMI_F01_CRTL0_REPORTRATE_BIT;
- else
- data->device_control.ctrl0 &= ~RMI_F01_CRTL0_REPORTRATE_BIT;
-
- retval = rmi_write_block(fn->rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write reportrate bit.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_interrupt_enable_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- int i, len, total_len = 0;
- char *current_buf = buf;
-
- /* loop through each irq value and copy its
- * string representation into buf */
- for (i = 0; i < data->irq_count; i++) {
- int irq_reg;
- int irq_shift;
- int interrupt_enable;
-
- irq_reg = i / 8;
- irq_shift = i % 8;
- interrupt_enable =
- ((data->device_control.interrupt_enable[irq_reg]
- >> irq_shift) & 0x01);
-
- /* get next irq value and write it to buf */
- len = snprintf(current_buf, PAGE_SIZE - total_len,
- "%u ", interrupt_enable);
- /* bump up ptr to next location in buf if the
- * snprintf was valid. Otherwise issue an error
- * and return. */
- if (len > 0) {
- current_buf += len;
- total_len += len;
- } else {
- dev_err(dev, "Failed to build interrupt_enable buffer, code = %d.\n",
- len);
- return snprintf(buf, PAGE_SIZE, "unknown\n");
- }
- }
- len = snprintf(current_buf, PAGE_SIZE - total_len, "\n");
- if (len > 0)
- total_len += len;
- else
- dev_warn(dev, "%s: Failed to append carriage return.\n",
- __func__);
- return total_len;
-
-}
-
-static ssize_t rmi_fn_01_doze_interval_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- data->device_control.doze_interval);
-
-}
-
-static ssize_t rmi_fn_01_doze_interval_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
- u16 ctrl_base_addr;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 255) {
- dev_err(dev, "%s: Invalid doze interval %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- data->device_control.doze_interval = new_value;
- ctrl_base_addr = fn->fd.control_base_addr + sizeof(u8) +
- (sizeof(u8)*(data->num_of_irq_regs));
- dev_dbg(dev, "doze_interval store address %x, value %d",
- ctrl_base_addr, data->device_control.doze_interval);
-
- retval = rmi_write_block(fn->rmi_dev, data->doze_interval_addr,
- &data->device_control.doze_interval,
- sizeof(u8));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write doze interval.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-static ssize_t rmi_fn_01_wakeup_threshold_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- data->device_control.wakeup_threshold);
-}
-
-static ssize_t rmi_fn_01_wakeup_threshold_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 255) {
- dev_err(dev, "%s: Invalid wakeup threshold %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- data->device_control.doze_interval = new_value;
- retval = rmi_write_block(fn->rmi_dev, data->wakeup_threshold_addr,
- &data->device_control.wakeup_threshold,
- sizeof(u8));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write wakeup threshold.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_doze_holdoff_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- data->device_control.doze_holdoff);
-
-}
-
-static ssize_t rmi_fn_01_doze_holdoff_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned long new_value;
- int retval;
-
- retval = strict_strtoul(buf, 10, &new_value);
- if (retval < 0 || new_value > 255) {
- dev_err(dev, "%s: Invalid doze holdoff %s.", __func__, buf);
- return -EINVAL;
- }
-
- retval = mutex_lock_interruptible(&data->control_mutex);
- if (retval)
- return retval;
-
- data->device_control.doze_interval = new_value;
- retval = rmi_write_block(fn->rmi_dev, data->doze_holdoff_addr,
- &data->device_control.doze_holdoff,
- sizeof(u8));
- if (retval >= 0)
- retval = count;
- else
- dev_err(dev, "Failed to write doze holdoff.\n");
-
- mutex_unlock(&data->control_mutex);
- return retval;
-}
-
-static ssize_t rmi_fn_01_configured_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- unsigned int value = !!(data->device_control.ctrl0 &
- RMI_F01_CRTL0_CONFIGURED_BIT);
-
- return snprintf(buf, PAGE_SIZE, "%d\n", value);
-}
-
-static ssize_t rmi_fn_01_unconfigured_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- RMI_F01_STATUS_UNCONFIGURED(data->device_status));
-}
-
-static ssize_t rmi_fn_01_flashprog_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- RMI_F01_STATUS_BOOTLOADER(data->device_status));
-}
-
-static ssize_t rmi_fn_01_statuscode_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
-
- return snprintf(buf, PAGE_SIZE, "0x%02x\n",
- RMI_F01_STATUS_CODE(data->device_status));
-}
-
-#define RMI_F01_ATTR(_name) \
- DEVICE_ATTR(_name, RMI_RW_ATTR, \
- rmi_fn_01_##_name##_show, \
- rmi_fn_01_##_name##_store)
-
-#define RMI_F01_RO_ATTR(_name) \
- DEVICE_ATTR(_name, RMI_RO_ATTR, \
- rmi_fn_01_##_name##_show, \
- NULL)
-
-#define RMI_F01_WO_ATTR(_name) \
- DEVICE_ATTR(_name, RMI_RO_ATTR, \
- NULL, \
- rmi_fn_01_##_name##_store)
-
-
-static RMI_F01_RO_ATTR(productinfo);
-static RMI_F01_RO_ATTR(productid);
-static RMI_F01_RO_ATTR(manufacturer);
-static RMI_F01_RO_ATTR(datecode);
-
-/* Control register access */
-static RMI_F01_ATTR(sleepmode);
-static RMI_F01_ATTR(nosleep);
-static RMI_F01_ATTR(chargerinput);
-static RMI_F01_ATTR(reportrate);
-
-/*
- * We don't want arbitrary callers changing the interrupt enable mask,
- * so it's read only.
- */
-static RMI_F01_RO_ATTR(interrupt_enable);
-static RMI_F01_ATTR(doze_interval);
-static RMI_F01_ATTR(wakeup_threshold);
-static RMI_F01_ATTR(doze_holdoff);
-
-/*
- * We make 'configured' RO, since the driver uses that to look for
- * resets. We don't want someone faking us out by changing that
- * bit.
- */
-static RMI_F01_RO_ATTR(configured);
-
-/* Command register access. */
-static RMI_F01_WO_ATTR(reset);
-
-/* Status register access. */
-static RMI_F01_RO_ATTR(unconfigured);
-static RMI_F01_RO_ATTR(flashprog);
-static RMI_F01_RO_ATTR(statuscode);
-
-static struct attribute *rmi_fn_01_attrs[] = {
- &dev_attr_productinfo.attr,
- &dev_attr_productid.attr,
- &dev_attr_manufacturer.attr,
- &dev_attr_datecode.attr,
- &dev_attr_sleepmode.attr,
- &dev_attr_nosleep.attr,
- &dev_attr_chargerinput.attr,
- &dev_attr_reportrate.attr,
- &dev_attr_interrupt_enable.attr,
- &dev_attr_doze_interval.attr,
- &dev_attr_wakeup_threshold.attr,
- &dev_attr_doze_holdoff.attr,
- &dev_attr_configured.attr,
- &dev_attr_reset.attr,
- &dev_attr_unconfigured.attr,
- &dev_attr_flashprog.attr,
- &dev_attr_statuscode.attr,
- NULL
-};
-
-static umode_t rmi_fn_01_attr_visible(struct kobject *kobj,
- struct attribute *attr, int n)
-{
- struct device *dev = kobj_to_dev(kobj);
- struct rmi_function *fn = to_rmi_function(dev);
- struct f01_data *data = fn->data;
- umode_t mode = attr->mode;
-
- if (attr == &dev_attr_doze_interval.attr) {
- if (!data->properties.has_lts)
- mode = 0;
- } else if (attr == &dev_attr_wakeup_threshold.attr) {
- if (!data->properties.has_adjustable_doze)
- mode = 0;
- } else if (attr == &dev_attr_doze_holdoff.attr) {
- if (!data->properties.has_adjustable_doze_holdoff)
- mode = 0;
- }
-
- return mode;
-}
+#include "rmi_driver.h"
+#include "rmi_f01.h"
-static struct attribute_group rmi_fn_01_attr_group = {
- .is_visible = rmi_fn_01_attr_visible,
- .attrs = rmi_fn_01_attrs,
-};
+#define FUNCTION_NUMBER 0x01
static int rmi_f01_alloc_memory(struct rmi_function *fn,
- int num_of_irq_regs)
+ int num_of_irq_regs)
{
struct f01_data *f01;
@@ -942,24 +41,57 @@ static int rmi_f01_alloc_memory(struct rmi_function *fn,
return 0;
}
+static void get_board_and_rev(struct rmi_function *fn,
+ struct rmi_driver_data *driver_data)
+{
+ struct f01_data *data = fn->data;
+ int retval;
+ int board = 0, rev = 0;
+ int i;
+ static const char * const pattern[] = {
+ "tm%4d-%d", "s%4d-%d", "s%4d-ver%1d", "s%4d_ver%1d"};
+ u8 product_id[RMI_PRODUCT_ID_LENGTH+1];
+
+ for (i = 0; i < strlen(data->product_id); i++)
+ product_id[i] = tolower(data->product_id[i]);
+ product_id[i] = '\0';
+
+ for (i = 0; i < ARRAY_SIZE(pattern); i++) {
+ retval = sscanf(product_id, pattern[i], &board, &rev);
+ if (retval)
+ break;
+ }
+
+ /* save board and rev data in the rmi_driver_data */
+ driver_data->board = board;
+ driver_data->rev = rev;
+ dev_dbg(&fn->dev, "From product ID %s, set board: %d rev: %d\n",
+ product_id, driver_data->board, driver_data->rev);
+}
+
+#define PACKAGE_ID_BYTES 4
+#define BUILD_ID_BYTES 3
+
static int rmi_f01_initialize(struct rmi_function *fn)
{
u8 temp;
+ int i;
int error;
- u16 ctrl_base_addr;
+ u16 query_addr = fn->fd.query_base_addr;
+ u16 prod_info_addr;
+ u8 info_buf[4];
+ u16 ctrl_base_addr = fn->fd.control_base_addr;
struct rmi_device *rmi_dev = fn->rmi_dev;
struct rmi_driver_data *driver_data = dev_get_drvdata(&rmi_dev->dev);
struct f01_data *data = fn->data;
struct rmi_device_platform_data *pdata = to_rmi_platform_data(rmi_dev);
u8 basic_query[RMI_F01_BASIC_QUERY_LEN];
+ struct f01_basic_properties *props = &data->properties;
mutex_init(&data->control_mutex);
- /*
- * Set the configured bit and (optionally) other important stuff
- * in the device control register.
- */
- ctrl_base_addr = fn->fd.control_base_addr;
+ /* Set the configured bit and (optionally) other important stuff
+ * in the device control register. */
error = rmi_read_block(rmi_dev, fn->fd.control_base_addr,
&data->device_control.ctrl0,
sizeof(data->device_control.ctrl0));
@@ -978,8 +110,7 @@ static int rmi_f01_initialize(struct rmi_function *fn)
break;
}
- /*
- * Sleep mode might be set as a hangover from a system crash or
+ /* 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.
*/
@@ -990,11 +121,16 @@ static int rmi_f01_initialize(struct rmi_function *fn)
data->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
}
+ /* Set this to indicate that we've initialized the sensor. This will
+ * CLEAR the unconfigured bit in the status registers. If we ever
+ * see unconfigured become set again, we'll know that the sensor has
+ * reset for some reason.
+ */
data->device_control.ctrl0 |= RMI_F01_CRTL0_CONFIGURED_BIT;
error = rmi_write_block(rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
+ &data->device_control.ctrl0,
+ sizeof(data->device_control.ctrl0));
if (error < 0) {
dev_err(&fn->dev, "Failed to write F01 control.\n");
return error;
@@ -1006,14 +142,12 @@ static int rmi_f01_initialize(struct rmi_function *fn)
data->interrupt_enable_addr = ctrl_base_addr;
error = rmi_read_block(rmi_dev, ctrl_base_addr,
- data->device_control.interrupt_enable,
- sizeof(u8) * (data->num_of_irq_regs));
+ data->device_control.interrupt_enable,
+ sizeof(u8)*(data->num_of_irq_regs));
if (error < 0) {
- dev_err(&fn->dev,
- "Failed to read F01 control interrupt enable register.\n");
+ dev_err(&fn->dev, "Failed to read F01 control interrupt enable register.\n");
goto error_exit;
}
-
ctrl_base_addr += data->num_of_irq_regs;
/* dummy read in order to clear irqs */
@@ -1023,43 +157,226 @@ static int rmi_f01_initialize(struct rmi_function *fn)
return error;
}
+ /* read queries */
error = rmi_read_block(rmi_dev, fn->fd.query_base_addr,
- basic_query, sizeof(basic_query));
+ basic_query, sizeof(basic_query));
if (error < 0) {
dev_err(&fn->dev, "Failed to read device query registers.\n");
return error;
}
/* Now parse what we got */
- data->properties.manufacturer_id = basic_query[0];
+ props->manufacturer_id = basic_query[0];
- data->properties.has_lts = basic_query[1] & RMI_F01_QRY1_HAS_LTS;
- data->properties.has_adjustable_doze =
+ props->has_lts = basic_query[1] & RMI_F01_QRY1_HAS_LTS;
+ props->has_sensor_id =
+ !!(basic_query[1] & RMI_F01_QRY1_HAS_SENSOR_ID);
+ props->has_adjustable_doze =
basic_query[1] & RMI_F01_QRY1_HAS_ADJ_DOZE;
- data->properties.has_adjustable_doze_holdoff =
+ props->has_adjustable_doze_holdoff =
basic_query[1] & RMI_F01_QRY1_HAS_ADJ_DOZE_HOFF;
+ props->has_query42 = basic_query[1] & RMI_F01_QRY1_HAS_PROPS_2;
+
+ snprintf(props->dom, sizeof(props->dom), "20%02d/%02d/%02d",
+ basic_query[5] & RMI_F01_QRY5_YEAR_MASK,
+ basic_query[6] & RMI_F01_QRY6_MONTH_MASK,
+ basic_query[7] & RMI_F01_QRY7_DAY_MASK);
+
+ memcpy(props->product_id, &basic_query[11], RMI_PRODUCT_ID_LENGTH);
+ props->product_id[RMI_PRODUCT_ID_LENGTH] = '\0';
+ query_addr += 11;
+
+ error = rmi_read_block(rmi_dev, query_addr, data->product_id,
+ RMI_PRODUCT_ID_LENGTH);
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read product ID.\n");
+ return error;
+ }
+ data->product_id[RMI_PRODUCT_ID_LENGTH] = '\0';
+ get_board_and_rev(fn, driver_data);
+ dev_info(&fn->dev, "found RMI device, manufacturer: %s, product: %s, date: %s\n",
+ props->manufacturer_id == 1 ?
+ "synaptics" : "unknown", data->product_id, props->dom);
+
+ /* We'll come back and use this later, depending on some other query
+ * bits.
+ */
+ prod_info_addr = query_addr + 6;
+
+ query_addr += RMI_PRODUCT_ID_LENGTH;
+ if (props->has_lts) {
+ error = rmi_read(rmi_dev, query_addr, info_buf);
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read LTS info.\n");
+ return error;
+ }
+ props->slave_asic_rows = info_buf[0] &
+ RMI_F01_QRY21_SLAVE_ROWS_MASK;
+ props->slave_asic_columns = (info_buf[1] &
+ RMI_F01_QRY21_SLAVE_COLUMNS_MASK) >> 3;
+ query_addr++;
+ }
+
+ if (props->has_sensor_id) {
+ error = rmi_read(rmi_dev, query_addr, &props->sensor_id);
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read sensor ID.\n");
+ return error;
+ }
+ query_addr++;
+ }
+
+ /* Maybe skip a block of undefined LTS registers. */
+ if (props->has_lts)
+ query_addr += RMI_F01_LTS_RESERVED_SIZE;
+
+ if (props->has_query42) {
+ error = rmi_read(rmi_dev, query_addr, info_buf);
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read additional properties.\n");
+ return error;
+ }
+ props->has_ds4_queries = info_buf[0] &
+ RMI_F01_QRY42_DS4_QUERIES;
+ props->has_multi_physical = info_buf[0] &
+ RMI_F01_QRY42_MULTI_PHYS;
+ props->has_guest = info_buf[0] & RMI_F01_QRY42_GUEST;
+ props->has_swr = info_buf[0] & RMI_F01_QRY42_SWR;
+ props->has_nominal_report_rate = info_buf[0] &
+ RMI_F01_QRY42_NOMINAL_REPORT;
+ props->has_recalibration_interval = info_buf[0] &
+ RMI_F01_QRY42_RECAL_INTERVAL;
+ query_addr++;
+ }
+
+ if (props->has_ds4_queries) {
+ error = rmi_read(rmi_dev, query_addr, &props->ds4_query_length);
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read DS4 query length size.\n");
+ return error;
+ }
+ query_addr++;
+ }
- snprintf(data->properties.dom, sizeof(data->properties.dom),
- "20%02x%02x%02x",
- basic_query[5] & RMI_F01_QRY5_YEAR_MASK,
- basic_query[6] & RMI_F01_QRY6_MONTH_MASK,
- basic_query[7] & RMI_F01_QRY7_DAY_MASK);
+ for (i = 1; i <= props->ds4_query_length; i++) {
+ u8 val;
+ error = rmi_read(rmi_dev, query_addr, &val);
+ query_addr++;
+ if (error < 0) {
+ dev_err(&fn->dev, "Failed to read F01_RMI_QUERY43.%02d, code: %d.\n",
+ i, error);
+ continue;
+ }
+ switch (i) {
+ case 1:
+ props->has_package_id_query = val &
+ RMI_F01_QRY43_01_PACKAGE_ID;
+ props->has_build_id_query = val &
+ RMI_F01_QRY43_01_BUILD_ID;
+ props->has_reset_query = val & RMI_F01_QRY43_01_RESET;
+ props->has_maskrev_query = val &
+ RMI_F01_QRY43_01_PACKAGE_ID;
+ break;
+ case 2:
+ props->has_i2c_control = val & RMI_F01_QRY43_02_I2C_CTL;
+ props->has_spi_control = val & RMI_F01_QRY43_02_SPI_CTL;
+ props->has_attn_control = val &
+ RMI_F01_QRY43_02_ATTN_CTL;
+ props->has_win8_vendor_info = val &
+ RMI_F01_QRY43_02_WIN8;
+ props->has_timestamp = val & RMI_F01_QRY43_02_TIMESTAMP;
+ break;
+ case 3:
+ props->has_tool_id_query = val &
+ RMI_F01_QRY43_03_TOOL_ID;
+ props->has_fw_revision_query = val &
+ RMI_F01_QRY43_03_FW_REVISION;
+ break;
+ default:
+ dev_warn(&fn->dev, "No handling for F01_RMI_QUERY43.%02d.\n",
+ i);
+ }
+ }
- memcpy(data->properties.product_id, &basic_query[11],
- RMI_PRODUCT_ID_LENGTH);
- data->properties.product_id[RMI_PRODUCT_ID_LENGTH] = '\0';
+ /* If present, the ASIC package ID registers are overlaid on the
+ * product ID. Go back to the right address (saved previously) and
+ * read them.
+ */
+ if (props->has_package_id_query) {
+ error = rmi_read_block(rmi_dev, prod_info_addr, info_buf,
+ PACKAGE_ID_BYTES);
+ if (error < 0)
+ dev_warn(&fn->dev, "Failed to read package ID.\n");
+ else {
+ u16 *val = (u16 *)info_buf;
+ data->package_id = le16_to_cpu(*val);
+ val = (u16 *)(info_buf + 2);
+ data->package_rev = le16_to_cpu(*val);
+ }
+ }
+ prod_info_addr++;
- data->properties.productinfo =
- ((basic_query[2] & RMI_F01_QRY2_PRODINFO_MASK) << 7) |
- (basic_query[3] & RMI_F01_QRY2_PRODINFO_MASK);
+ /* The firmware build id (if present) is similarly overlaid on product
+ * ID registers. Go back again and read that data.
+ */
+ if (props->has_build_id_query) {
+ error = rmi_read_block(rmi_dev, prod_info_addr, info_buf,
+ BUILD_ID_BYTES);
+ if (error < 0)
+ dev_warn(&fn->dev, "Failed to read FW build ID.\n");
+ else {
+ u16 *val = (u16 *)info_buf;
+ data->build_id = le16_to_cpu(*val);
+ data->build_id += info_buf[2] * 65536;
+ dev_info(&fn->dev, "FW build ID: %#08x (%u).\n",
+ data->build_id, data->build_id);
+ }
+ }
- dev_info(&fn->dev, "found RMI device, manufacturer: %s, product: %s\n",
- data->properties.manufacturer_id == 1 ?
- "synaptics" : "unknown",
- data->properties.product_id);
+ if (props->has_reset_query) {
+ u8 val;
+ error = rmi_read(rmi_dev, query_addr, &val);
+ query_addr++;
+ if (error < 0)
+ dev_warn(&fn->dev, "Failed to read F01_RMI_QUERY44, code: %d.\n",
+ error);
+ else {
+ props->reset_enabled = val & RMI_F01_QRY44_RST_ENABLED;
+ props->reset_polarity = val &
+ RMI_F01_QRY44_RST_POLARITY;
+ props->pullup_enabled = val &
+ RMI_F01_QRY44_PULLUP_ENABLED;
+ props->reset_pin = (val &
+ RMI_F01_QRY44_RST_PIN_MASK) >> 4;
+ }
+ }
+
+ if (props->has_tool_id_query) {
+ error = rmi_read_block(rmi_dev, query_addr, props->tool_id,
+ RMI_TOOL_ID_LENGTH);
+ if (error < 0)
+ dev_warn(&fn->dev, "Failed to read F01_RMI_QUERY45, code: %d.\n",
+ error);
+ /* This is a so-called "packet register", so address map
+ * increments only by one. */
+ query_addr++;
+ props->tool_id[RMI_TOOL_ID_LENGTH] = '\0';
+ }
+
+ if (props->has_fw_revision_query) {
+ error = rmi_read_block(rmi_dev, query_addr, props->fw_revision,
+ RMI_FW_REVISION_LENGTH);
+ if (error < 0)
+ dev_warn(&fn->dev, "Failed to read F01_RMI_QUERY46, code: %d.\n",
+ error);
+ /* This is a so-called "packet register", so address map
+ * increments only by one. */
+ query_addr++;
+ props->tool_id[RMI_FW_REVISION_LENGTH] = '\0';
+ }
/* read control register */
- if (data->properties.has_adjustable_doze) {
+ if (props->has_adjustable_doze) {
data->doze_interval_addr = ctrl_base_addr;
ctrl_base_addr++;
@@ -1103,7 +420,7 @@ static int rmi_f01_initialize(struct rmi_function *fn)
}
}
- if (data->properties.has_adjustable_doze_holdoff) {
+ if (props->has_adjustable_doze_holdoff) {
data->doze_holdoff_addr = ctrl_base_addr;
ctrl_base_addr++;
@@ -1133,27 +450,20 @@ static int rmi_f01_initialize(struct rmi_function *fn)
goto error_exit;
}
- driver_data->f01_bootloader_mode =
- RMI_F01_STATUS_BOOTLOADER(data->device_status);
- if (driver_data->f01_bootloader_mode)
- dev_warn(&rmi_dev->dev,
- "WARNING: RMI4 device is in bootloader mode!\n");
-
-
if (RMI_F01_STATUS_UNCONFIGURED(data->device_status)) {
- dev_err(&fn->dev,
- "Device was reset during configuration process, status: %#02x!\n",
- RMI_F01_STATUS_CODE(data->device_status));
+ dev_err(&fn->dev, "Device reset during configuration process, status: %#02x!\n",
+ RMI_F01_STATUS_CODE(data->device_status));
error = -EINVAL;
goto error_exit;
}
- error = setup_debugfs(fn);
- if (error)
- dev_warn(&fn->dev, "Failed to setup debugfs, error: %d.\n",
- error);
+ driver_data->f01_bootloader_mode =
+ RMI_F01_STATUS_BOOTLOADER(data->device_status);
+ if (RMI_F01_STATUS_BOOTLOADER(data->device_status))
+ dev_warn(&rmi_dev->dev,
+ "WARNING: RMI4 device is in bootloader mode!\n");
- return 0;
+ return error;
error_exit:
kfree(data);
@@ -1166,36 +476,33 @@ static int rmi_f01_config(struct rmi_function *fn)
int retval;
retval = rmi_write_block(fn->rmi_dev, fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
+ &data->device_control.ctrl0,
+ sizeof(data->device_control.ctrl0));
if (retval < 0) {
dev_err(&fn->dev, "Failed to write device_control.reg.\n");
return retval;
}
retval = rmi_write_block(fn->rmi_dev, data->interrupt_enable_addr,
- data->device_control.interrupt_enable,
- sizeof(u8) * data->num_of_irq_regs);
+ data->device_control.interrupt_enable,
+ sizeof(u8)*(data->num_of_irq_regs));
if (retval < 0) {
dev_err(&fn->dev, "Failed to write interrupt enable.\n");
return retval;
}
- if (data->properties.has_lts) {
- retval = rmi_write_block(fn->rmi_dev, data->doze_interval_addr,
- &data->device_control.doze_interval,
- sizeof(u8));
+
+ if (data->properties.has_adjustable_doze) {
+ retval = rmi_write(fn->rmi_dev,
+ data->doze_interval_addr,
+ data->device_control.doze_interval);
if (retval < 0) {
dev_err(&fn->dev, "Failed to write doze interval.\n");
return retval;
}
- }
-
- if (data->properties.has_adjustable_doze) {
- retval = rmi_write_block(fn->rmi_dev,
- data->wakeup_threshold_addr,
- &data->device_control.wakeup_threshold,
- sizeof(u8));
+ retval = rmi_write(
+ fn->rmi_dev, data->wakeup_threshold_addr,
+ data->device_control.wakeup_threshold);
if (retval < 0) {
dev_err(&fn->dev, "Failed to write wakeup threshold.\n");
return retval;
@@ -1203,9 +510,9 @@ static int rmi_f01_config(struct rmi_function *fn)
}
if (data->properties.has_adjustable_doze_holdoff) {
- retval = rmi_write_block(fn->rmi_dev, data->doze_holdoff_addr,
- &data->device_control.doze_holdoff,
- sizeof(u8));
+ retval = rmi_write(fn->rmi_dev,
+ data->doze_holdoff_addr,
+ data->device_control.doze_holdoff);
if (retval < 0) {
dev_err(&fn->dev, "Failed to write doze holdoff.\n");
return retval;
@@ -1221,51 +528,40 @@ static int rmi_f01_probe(struct rmi_function *fn)
int error;
error = rmi_f01_alloc_memory(fn, driver_data->num_of_irq_regs);
- if (error)
+ if (error < 0)
return error;
error = rmi_f01_initialize(fn);
- if (error)
- return error;
-
- error = sysfs_create_group(&fn->dev.kobj, &rmi_fn_01_attr_group);
- if (error)
+ if (error < 0)
return error;
return 0;
}
-static void rmi_f01_remove(struct rmi_function *fn)
-{
- teardown_debugfs(fn->data);
- sysfs_remove_group(&fn->dev.kobj, &rmi_fn_01_attr_group);
-}
-
#ifdef CONFIG_PM_SLEEP
static int rmi_f01_suspend(struct device *dev)
{
struct rmi_function *fn = to_rmi_function(dev);
struct rmi_device *rmi_dev = fn->rmi_dev;
struct f01_data *data = fn->data;
- int error;
+ int error = 0;
data->old_nosleep = data->device_control.ctrl0 &
- RMI_F01_CRTL0_NOSLEEP_BIT;
+ RMI_F01_CRTL0_NOSLEEP_BIT;
data->device_control.ctrl0 &= ~RMI_F01_CRTL0_NOSLEEP_BIT;
data->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
data->device_control.ctrl0 |= RMI_SLEEP_MODE_SENSOR_SLEEP;
error = rmi_write_block(rmi_dev,
- fn->fd.control_base_addr,
- &data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
+ fn->fd.control_base_addr,
+ &data->device_control.ctrl0,
+ sizeof(data->device_control.ctrl0));
if (error < 0) {
dev_err(&fn->dev, "Failed to write sleep mode. Code: %d.\n",
error);
if (data->old_nosleep)
- data->device_control.ctrl0 |=
- RMI_F01_CRTL0_NOSLEEP_BIT;
+ data->device_control.ctrl0 |= RMI_F01_CRTL0_NOSLEEP_BIT;
data->device_control.ctrl0 &= ~RMI_F01_CTRL0_SLEEP_MODE_MASK;
data->device_control.ctrl0 |= RMI_SLEEP_MODE_NORMAL;
return error;
@@ -1289,7 +585,7 @@ static int rmi_f01_resume(struct device *dev)
error = rmi_write_block(rmi_dev, fn->fd.control_base_addr,
&data->device_control.ctrl0,
- sizeof(data->device_control.ctrl0));
+ sizeof(data->device_control.ctrl0));
if (error < 0) {
dev_err(&fn->dev,
"Failed to restore normal operation. Code: %d.\n",
@@ -1304,7 +600,7 @@ static int rmi_f01_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(rmi_f01_pm_ops, rmi_f01_suspend, rmi_f01_resume);
static int rmi_f01_attention(struct rmi_function *fn,
- unsigned long *irq_bits)
+ unsigned long *irq_bits)
{
struct rmi_device *rmi_dev = fn->rmi_dev;
struct f01_data *data = fn->data;
@@ -1317,7 +613,6 @@ static int rmi_f01_attention(struct rmi_function *fn,
retval);
return retval;
}
-
if (RMI_F01_STATUS_UNCONFIGURED(data->device_status)) {
dev_warn(&fn->dev, "Device reset detected.\n");
retval = rmi_dev->driver->reset_handler(rmi_dev);
@@ -1327,29 +622,18 @@ static int rmi_f01_attention(struct rmi_function *fn,
return 0;
}
-static struct rmi_function_handler rmi_f01_handler = {
+struct rmi_function_driver rmi_f01_driver = {
.driver = {
.name = "rmi_f01",
.pm = &rmi_f01_pm_ops,
/*
- * Do not allow user unbinding F01 as it is critical
+ * Do not allow user unbinding of F01 as it is a critical
* function.
*/
.suppress_bind_attrs = true,
},
- .func = 0x01,
- .probe = rmi_f01_probe,
- .remove = rmi_f01_remove,
- .config = rmi_f01_config,
- .attention = rmi_f01_attention,
+ .func = FUNCTION_NUMBER,
+ .probe = rmi_f01_probe,
+ .config = rmi_f01_config,
+ .attention = rmi_f01_attention,
};
-
-int __init rmi_register_f01_handler(void)
-{
- return rmi_register_function_handler(&rmi_f01_handler);
-}
-
-void rmi_unregister_f01_handler(void)
-{
- rmi_unregister_function_handler(&rmi_f01_handler);
-}
diff --git a/drivers/input/rmi4/rmi_f01.h b/drivers/input/rmi4/rmi_f01.h
new file mode 100644
index 0000000..bfd0dcf
--- /dev/null
+++ b/drivers/input/rmi4/rmi_f01.h
@@ -0,0 +1,269 @@
+/*
+ * Copyright (c) 2012 Synaptics Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifndef _RMI_F01_H
+#define _RMI_F01_H
+
+#define RMI_PRODUCT_ID_LENGTH 10
+
+#define RMI_DATE_CODE_LENGTH 3
+
+/* Force a firmware reset of the sensor */
+#define RMI_F01_CMD_DEVICE_RESET 1
+
+#define F01_SERIALIZATION_SIZE 7
+
+/* Various F01_RMI_QueryX bits */
+
+#define RMI_F01_QRY1_CUSTOM_MAP (1 << 0)
+#define RMI_F01_QRY1_NON_COMPLIANT (1 << 1)
+#define RMI_F01_QRY1_HAS_LTS (1 << 2)
+#define RMI_F01_QRY1_HAS_SENSOR_ID (1 << 3)
+#define RMI_F01_QRY1_HAS_CHARGER_INP (1 << 4)
+#define RMI_F01_QRY1_HAS_ADJ_DOZE (1 << 5)
+#define RMI_F01_QRY1_HAS_ADJ_DOZE_HOFF (1 << 6)
+#define RMI_F01_QRY1_HAS_PROPS_2 (1 << 7)
+
+#define RMI_F01_QRY5_YEAR_MASK 0x1f
+#define RMI_F01_QRY6_MONTH_MASK 0x0f
+#define RMI_F01_QRY7_DAY_MASK 0x1f
+
+#define RMI_F01_QRY2_PRODINFO_MASK 0x7f
+
+#define RMI_F01_BASIC_QUERY_LEN 21 /* From Query 00 through 20 */
+
+#define RMI_F01_QRY21_SLAVE_ROWS_MASK 0x07
+#define RMI_F01_QRY21_SLAVE_COLUMNS_MASK 0x38
+
+#define RMI_F01_LTS_RESERVED_SIZE 19
+
+#define RMI_F01_QRY42_DS4_QUERIES (1 << 0)
+#define RMI_F01_QRY42_MULTI_PHYS (1 << 1)
+#define RMI_F01_QRY42_GUEST (1 << 2)
+#define RMI_F01_QRY42_SWR (1 << 3)
+#define RMI_F01_QRY42_NOMINAL_REPORT (1 << 4)
+#define RMI_F01_QRY42_RECAL_INTERVAL (1 << 5)
+
+#define RMI_F01_QRY43_01_PACKAGE_ID (1 << 0)
+#define RMI_F01_QRY43_01_BUILD_ID (1 << 1)
+#define RMI_F01_QRY43_01_RESET (1 << 2)
+#define RMI_F01_QRY43_01_MASK_REV (1 << 3)
+
+#define RMI_F01_QRY43_02_I2C_CTL (1 << 0)
+#define RMI_F01_QRY43_02_SPI_CTL (1 << 1)
+#define RMI_F01_QRY43_02_ATTN_CTL (1 << 2)
+#define RMI_F01_QRY43_02_WIN8 (1 << 3)
+#define RMI_F01_QRY43_02_TIMESTAMP (1 << 4)
+
+#define RMI_F01_QRY43_03_TOOL_ID (1 << 0)
+#define RMI_F01_QRY43_03_FW_REVISION (1 << 1)
+
+#define RMI_F01_QRY44_RST_ENABLED (1 << 0)
+#define RMI_F01_QRY44_RST_POLARITY (1 << 1)
+#define RMI_F01_QRY44_PULLUP_ENABLED (1 << 2)
+#define RMI_F01_QRY44_RST_PIN_MASK 0xF0
+
+#define RMI_TOOL_ID_LENGTH 16
+#define RMI_FW_REVISION_LENGTH 16
+
+struct f01_basic_properties {
+ u8 manufacturer_id;
+ bool has_lts;
+ bool has_sensor_id;
+ bool has_adjustable_doze;
+ bool has_adjustable_doze_holdoff;
+ bool has_query42;
+ char dom[11]; /* YYYY/MM/DD + '\0' */
+ u8 product_id[RMI_PRODUCT_ID_LENGTH + 1];
+ u16 productinfo;
+
+ /* These are meaningful only if has_lts is true. */
+ u8 slave_asic_rows;
+ u8 slave_asic_columns;
+
+ /* This is meaningful only if has_sensor_id is true. */
+ u8 sensor_id;
+
+ /* These are meaningful only if has_query42 is true. */
+ bool has_ds4_queries;
+ bool has_multi_physical;
+ bool has_guest;
+ bool has_swr;
+ bool has_nominal_report_rate;
+ bool has_recalibration_interval;
+
+ /* Tells how many of the Query43.xx registers are present.
+ */
+ u8 ds4_query_length;
+
+ /* Query 43.1 */
+ bool has_package_id_query;
+ bool has_build_id_query;
+ bool has_reset_query;
+ bool has_maskrev_query;
+
+ /* Query 43.2 */
+ bool has_i2c_control;
+ bool has_spi_control;
+ bool has_attn_control;
+ bool has_win8_vendor_info;
+ bool has_timestamp;
+
+ /* Query 43.3 */
+ bool has_tool_id_query;
+ bool has_fw_revision_query;
+
+ /* Query 44 */
+ bool reset_enabled;
+ bool reset_polarity;
+ bool pullup_enabled;
+ u8 reset_pin;
+
+ /* Query 45 */
+ char tool_id[RMI_TOOL_ID_LENGTH + 1];
+
+ /* Query 46 */
+ char fw_revision[RMI_FW_REVISION_LENGTH + 1];
+};
+
+/** The status code field reports the most recent device status event.
+ * @no_error - should be self explanatory.
+ * @reset_occurred - no other event was seen since the last reset.
+ * @invalid_config - general device configuration has a problem.
+ * @device_failure - general device hardware failure.
+ * @config_crc - configuration failed memory self check.
+ * @firmware_crc - firmware failed memory self check.
+ * @crc_in_progress - bootloader is currently testing config and fw areas.
+ */
+enum rmi_device_status {
+ no_error = 0x00,
+ reset_occurred = 0x01,
+ invalid_config = 0x02,
+ device_failure = 0x03,
+ config_crc = 0x04,
+ firmware_crc = 0x05,
+ crc_in_progress = 0x06
+};
+
+
+/* F01 device status bits */
+
+/* Most recent device status event */
+#define RMI_F01_STATUS_CODE(status) ((status) & 0x0f)
+/* Indicates that flash programming is enabled (bootloader mode). */
+#define RMI_F01_STATUS_BOOTLOADER(status) (!!((status) & 0x40))
+/* The device has lost its configuration for some reason. */
+#define RMI_F01_STATUS_UNCONFIGURED(status) (!!((status) & 0x80))
+
+
+
+/* Control register bits */
+
+/*
+* Sleep mode controls power management on the device and affects all
+* functions of the device.
+*/
+#define RMI_F01_CTRL0_SLEEP_MODE_MASK 0x03
+
+#define RMI_SLEEP_MODE_NORMAL 0x00
+#define RMI_SLEEP_MODE_SENSOR_SLEEP 0x01
+#define RMI_SLEEP_MODE_RESERVED0 0x02
+#define RMI_SLEEP_MODE_RESERVED1 0x03
+
+#define RMI_IS_VALID_SLEEPMODE(mode) \
+(mode >= RMI_SLEEP_MODE_NORMAL && mode <= RMI_SLEEP_MODE_RESERVED1)
+
+/*
+ * This bit disables whatever sleep mode may be selected by the sleep_mode
+ * field and forces the device to run at full power without sleeping.
+ */
+#define RMI_F01_CRTL0_NOSLEEP_BIT (1 << 2)
+
+/*
+ * When this bit is set, the touch controller employs a noise-filtering
+ * algorithm designed for use with a connected battery charger.
+ */
+#define RMI_F01_CRTL0_CHARGER_BIT (1 << 5)
+
+/*
+ * Sets the report rate for the device. The effect of this setting is
+ * highly product dependent. Check the spec sheet for your particular
+ * touch sensor.
+ */
+#define RMI_F01_CRTL0_REPORTRATE_BIT (1 << 6)
+
+/*
+ * Written by the host as an indicator that the device has been
+ * successfully configured.
+ */
+#define RMI_F01_CRTL0_CONFIGURED_BIT (1 << 7)
+
+/**
+ * @ctrl0 - see documentation in rmi_f01.h.
+ * @interrupt_enable - A mask of per-function interrupts on the touch sensor.
+ * @doze_interval - controls the interval between checks for finger presence
+ * when the touch sensor is in doze mode, in units of 10ms.
+ * @wakeup_threshold - controls the capacitance threshold at which the touch
+ * sensor will decide to wake up from that low power state.
+ * @doze_holdoff - controls how long the touch sensor waits after the last
+ * finger lifts before entering the doze state, in units of 100ms.
+ */
+struct f01_device_control {
+ u8 ctrl0;
+ u8 *interrupt_enable;
+ u8 doze_interval;
+ u8 wakeup_threshold;
+ u8 doze_holdoff;
+};
+
+
+/*
+ *
+ * @serialization - 7 bytes of device serialization data. The meaning of
+ * these bytes varies from product to product, consult your product spec sheet.
+ */
+struct f01_data {
+ struct f01_device_control device_control;
+ struct mutex control_mutex;
+
+ u8 device_status;
+
+ struct f01_basic_properties properties;
+ u8 serialization[F01_SERIALIZATION_SIZE];
+ u8 product_id[RMI_PRODUCT_ID_LENGTH+1];
+
+ u16 package_id;
+ u16 package_rev;
+ u32 build_id;
+
+ u16 interrupt_enable_addr;
+ u16 doze_interval_addr;
+ u16 wakeup_threshold_addr;
+ u16 doze_holdoff_addr;
+
+ int irq_count;
+ int num_of_irq_regs;
+
+#ifdef CONFIG_PM
+ bool suspended;
+ bool old_nosleep;
+#endif
+};
+
+#endif
--
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