--- /dev/null
+Atmel maXTouch touchscreen/touchpad
+
+Required properties:
+- compatible:
+ atmel,maxtouch
+
+- reg: The I2C address of the device
+
+- interrupts: The sink for the touchpad's IRQ output
+ See ../interrupt-controller/interrupts.txt
+
+Optional properties for main touchpad device:
+
+- linux,gpio-keymap: An array of up to 4 entries indicating the Linux
+ keycode generated by each GPIO. Linux keycodes are defined in
+ <dt-bindings/input/input.h>.
+
+Example:
+
+ touch@4b {
+ compatible = "atmel,maxtouch";
+ reg = <0x4b>;
+ interrupt-parent = <&gpio>;
+ interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_LOW>;
+ };
--- /dev/null
+Device tree bindings for Microchip CAP1106, 6 channel capacitive touch sensor
+
+The node for this driver must be a child of a I2C controller node, as the
+device communication via I2C only.
+
+Required properties:
+
+ compatible: Must be "microchip,cap1106"
+
+ reg: The I2C slave address of the device.
+ Only 0x28 is valid.
+
+ interrupts: Property describing the interrupt line the
+ device's ALERT#/CM_IRQ# pin is connected to.
+ The device only has one interrupt source.
+
+Optional properties:
+
+ autorepeat: Enables the Linux input system's autorepeat
+ feature on the input device.
+
+ microchip,sensor-gain: Defines the gain of the sensor circuitry. This
+ effectively controls the sensitivity, as a
+ smaller delta capacitance is required to
+ generate the same delta count values.
+ Valid values are 1, 2, 4, and 8.
+ By default, a gain of 1 is set.
+
+ linux,keycodes: Specifies an array of numeric keycode values to
+ be used for the channels. If this property is
+ omitted, KEY_A, KEY_B, etc are used as
+ defaults. The array must have exactly six
+ entries.
+
+Example:
+
+i2c_controller {
+ cap1106@28 {
+ compatible = "microchip,cap1106";
+ interrupt-parent = <&gpio1>;
+ interrupts = <0 0>;
+ reg = <0x28>;
+ autorepeat;
+ microchip,sensor-gain = <2>;
+
+ linux,keycodes = <103 /* KEY_UP */
+ 106 /* KEY_RIGHT */
+ 108 /* KEY_DOWN */
+ 105 /* KEY_LEFT */
+ 109 /* KEY_PAGEDOWN */
+ 104>; /* KEY_PAGEUP */
+ };
+}
--- /dev/null
+* Pixcir I2C touchscreen controllers
+
+Required properties:
+- compatible: must be "pixcir,pixcir_ts" or "pixcir,pixcir_tangoc"
+- reg: I2C address of the chip
+- interrupts: interrupt to which the chip is connected
+- attb-gpio: GPIO connected to the ATTB line of the chip
+- touchscreen-size-x: horizontal resolution of touchscreen (in pixels)
+- touchscreen-size-y: vertical resolution of touchscreen (in pixels)
+
+Example:
+
+ i2c@00000000 {
+ /* ... */
+
+ pixcir_ts@5c {
+ compatible = "pixcir,pixcir_ts";
+ reg = <0x5c>;
+ interrupts = <2 0>;
+ attb-gpio = <&gpf 2 0 2>;
+ touchscreen-size-x = <800>;
+ touchscreen-size-y = <600>;
+ };
+
+ /* ... */
+ };
- x-size: horizontal resolution of touchscreen
- y-size: vertical resolution of touchscreen
+Optional properties:
+- vdd-supply: Regulator controlling the controller supply
+
Example:
i2c@00000000 {
compatible = "neonode,zforce";
reg = <0x50>;
interrupts = <2 0>;
+ vdd-supply = <®_zforce_vdd>;
gpios = <&gpio5 6 0>, /* INT */
<&gpio5 9 0>; /* RST */
phytec PHYTEC Messtechnik GmbH
picochip Picochip Ltd
plathome Plat'Home Co., Ltd.
+pixcir PIXCIR MICROELECTRONICS Co., Ltd
powervr PowerVR (deprecated, use img)
qca Qualcomm Atheros, Inc.
qcom Qualcomm Technologies, Inc
S: Maintained
F: drivers/mmc/host/wbsd.*
+WACOM PROTOCOL 4 SERIAL TABLETS
+M: Julian Squires <julian@cipht.net>
+M: Hans de Goede <hdegoede@redhat.com>
+L: linux-input@vger.kernel.org
+S: Maintained
+F: drivers/input/tablet/wacom_serial4.c
+
WATCHDOG DEVICE DRIVERS
M: Wim Van Sebroeck <wim@iguana.be>
L: linux-watchdog@vger.kernel.org
attb-gpio = <&gpio3 22 GPIO_ACTIVE_HIGH>;
- x-size = <1024>;
- y-size = <600>;
+ touchscreen-size-x = <1024>;
+ touchscreen-size-y = <600>;
};
};
attb-gpio = <&gpio1 17 GPIO_ACTIVE_HIGH>;
- x-size = <1024>;
- y-size = <600>;
+ touchscreen-size-x = <1024>;
+ touchscreen-size-y = <600>;
};
};
To compile this driver as a module, choose M here: the
module will be called cros_ec_keyb.
+config KEYBOARD_CAP1106
+ tristate "Microchip CAP1106 touch sensor"
+ depends on OF && I2C
+ select REGMAP_I2C
+ help
+ Say Y here to enable the CAP1106 touch sensor driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cap1106.
+
endif
obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o
+obj-$(CONFIG_KEYBOARD_CAP1106) += cap1106.o
obj-$(CONFIG_KEYBOARD_CLPS711X) += clps711x-keypad.o
obj-$(CONFIG_KEYBOARD_CROS_EC) += cros_ec_keyb.o
obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o
--- /dev/null
+/*
+ * Input driver for Microchip CAP1106, 6 channel capacitive touch sensor
+ *
+ * http://www.microchip.com/wwwproducts/Devices.aspx?product=CAP1106
+ *
+ * (c) 2014 Daniel Mack <linux@zonque.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/i2c.h>
+#include <linux/gpio/consumer.h>
+
+#define CAP1106_REG_MAIN_CONTROL 0x00
+#define CAP1106_REG_MAIN_CONTROL_GAIN_SHIFT (6)
+#define CAP1106_REG_MAIN_CONTROL_GAIN_MASK (0xc0)
+#define CAP1106_REG_MAIN_CONTROL_DLSEEP BIT(4)
+#define CAP1106_REG_GENERAL_STATUS 0x02
+#define CAP1106_REG_SENSOR_INPUT 0x03
+#define CAP1106_REG_NOISE_FLAG_STATUS 0x0a
+#define CAP1106_REG_SENOR_DELTA(X) (0x10 + (X))
+#define CAP1106_REG_SENSITIVITY_CONTROL 0x1f
+#define CAP1106_REG_CONFIG 0x20
+#define CAP1106_REG_SENSOR_ENABLE 0x21
+#define CAP1106_REG_SENSOR_CONFIG 0x22
+#define CAP1106_REG_SENSOR_CONFIG2 0x23
+#define CAP1106_REG_SAMPLING_CONFIG 0x24
+#define CAP1106_REG_CALIBRATION 0x25
+#define CAP1106_REG_INT_ENABLE 0x26
+#define CAP1106_REG_REPEAT_RATE 0x28
+#define CAP1106_REG_MT_CONFIG 0x2a
+#define CAP1106_REG_MT_PATTERN_CONFIG 0x2b
+#define CAP1106_REG_MT_PATTERN 0x2d
+#define CAP1106_REG_RECALIB_CONFIG 0x2f
+#define CAP1106_REG_SENSOR_THRESH(X) (0x30 + (X))
+#define CAP1106_REG_SENSOR_NOISE_THRESH 0x38
+#define CAP1106_REG_STANDBY_CHANNEL 0x40
+#define CAP1106_REG_STANDBY_CONFIG 0x41
+#define CAP1106_REG_STANDBY_SENSITIVITY 0x42
+#define CAP1106_REG_STANDBY_THRESH 0x43
+#define CAP1106_REG_CONFIG2 0x44
+#define CAP1106_REG_SENSOR_BASE_CNT(X) (0x50 + (X))
+#define CAP1106_REG_SENSOR_CALIB (0xb1 + (X))
+#define CAP1106_REG_SENSOR_CALIB_LSB1 0xb9
+#define CAP1106_REG_SENSOR_CALIB_LSB2 0xba
+#define CAP1106_REG_PRODUCT_ID 0xfd
+#define CAP1106_REG_MANUFACTURER_ID 0xfe
+#define CAP1106_REG_REVISION 0xff
+
+#define CAP1106_NUM_CHN 6
+#define CAP1106_PRODUCT_ID 0x55
+#define CAP1106_MANUFACTURER_ID 0x5d
+
+struct cap1106_priv {
+ struct regmap *regmap;
+ struct input_dev *idev;
+
+ /* config */
+ unsigned int keycodes[CAP1106_NUM_CHN];
+};
+
+static const struct reg_default cap1106_reg_defaults[] = {
+ { CAP1106_REG_MAIN_CONTROL, 0x00 },
+ { CAP1106_REG_GENERAL_STATUS, 0x00 },
+ { CAP1106_REG_SENSOR_INPUT, 0x00 },
+ { CAP1106_REG_NOISE_FLAG_STATUS, 0x00 },
+ { CAP1106_REG_SENSITIVITY_CONTROL, 0x2f },
+ { CAP1106_REG_CONFIG, 0x20 },
+ { CAP1106_REG_SENSOR_ENABLE, 0x3f },
+ { CAP1106_REG_SENSOR_CONFIG, 0xa4 },
+ { CAP1106_REG_SENSOR_CONFIG2, 0x07 },
+ { CAP1106_REG_SAMPLING_CONFIG, 0x39 },
+ { CAP1106_REG_CALIBRATION, 0x00 },
+ { CAP1106_REG_INT_ENABLE, 0x3f },
+ { CAP1106_REG_REPEAT_RATE, 0x3f },
+ { CAP1106_REG_MT_CONFIG, 0x80 },
+ { CAP1106_REG_MT_PATTERN_CONFIG, 0x00 },
+ { CAP1106_REG_MT_PATTERN, 0x3f },
+ { CAP1106_REG_RECALIB_CONFIG, 0x8a },
+ { CAP1106_REG_SENSOR_THRESH(0), 0x40 },
+ { CAP1106_REG_SENSOR_THRESH(1), 0x40 },
+ { CAP1106_REG_SENSOR_THRESH(2), 0x40 },
+ { CAP1106_REG_SENSOR_THRESH(3), 0x40 },
+ { CAP1106_REG_SENSOR_THRESH(4), 0x40 },
+ { CAP1106_REG_SENSOR_THRESH(5), 0x40 },
+ { CAP1106_REG_SENSOR_NOISE_THRESH, 0x01 },
+ { CAP1106_REG_STANDBY_CHANNEL, 0x00 },
+ { CAP1106_REG_STANDBY_CONFIG, 0x39 },
+ { CAP1106_REG_STANDBY_SENSITIVITY, 0x02 },
+ { CAP1106_REG_STANDBY_THRESH, 0x40 },
+ { CAP1106_REG_CONFIG2, 0x40 },
+ { CAP1106_REG_SENSOR_CALIB_LSB1, 0x00 },
+ { CAP1106_REG_SENSOR_CALIB_LSB2, 0x00 },
+};
+
+static bool cap1106_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CAP1106_REG_MAIN_CONTROL:
+ case CAP1106_REG_SENSOR_INPUT:
+ case CAP1106_REG_SENOR_DELTA(0):
+ case CAP1106_REG_SENOR_DELTA(1):
+ case CAP1106_REG_SENOR_DELTA(2):
+ case CAP1106_REG_SENOR_DELTA(3):
+ case CAP1106_REG_SENOR_DELTA(4):
+ case CAP1106_REG_SENOR_DELTA(5):
+ case CAP1106_REG_PRODUCT_ID:
+ case CAP1106_REG_MANUFACTURER_ID:
+ case CAP1106_REG_REVISION:
+ return true;
+ }
+
+ return false;
+}
+
+static const struct regmap_config cap1106_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = CAP1106_REG_REVISION,
+ .reg_defaults = cap1106_reg_defaults,
+
+ .num_reg_defaults = ARRAY_SIZE(cap1106_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_reg = cap1106_volatile_reg,
+};
+
+static irqreturn_t cap1106_thread_func(int irq_num, void *data)
+{
+ struct cap1106_priv *priv = data;
+ unsigned int status;
+ int ret, i;
+
+ /*
+ * Deassert interrupt. This needs to be done before reading the status
+ * registers, which will not carry valid values otherwise.
+ */
+ ret = regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL, 1, 0);
+ if (ret < 0)
+ goto out;
+
+ ret = regmap_read(priv->regmap, CAP1106_REG_SENSOR_INPUT, &status);
+ if (ret < 0)
+ goto out;
+
+ for (i = 0; i < CAP1106_NUM_CHN; i++)
+ input_report_key(priv->idev, priv->keycodes[i],
+ status & (1 << i));
+
+ input_sync(priv->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int cap1106_set_sleep(struct cap1106_priv *priv, bool sleep)
+{
+ return regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL,
+ CAP1106_REG_MAIN_CONTROL_DLSEEP,
+ sleep ? CAP1106_REG_MAIN_CONTROL_DLSEEP : 0);
+}
+
+static int cap1106_input_open(struct input_dev *idev)
+{
+ struct cap1106_priv *priv = input_get_drvdata(idev);
+
+ return cap1106_set_sleep(priv, false);
+}
+
+static void cap1106_input_close(struct input_dev *idev)
+{
+ struct cap1106_priv *priv = input_get_drvdata(idev);
+
+ cap1106_set_sleep(priv, true);
+}
+
+static int cap1106_i2c_probe(struct i2c_client *i2c_client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &i2c_client->dev;
+ struct cap1106_priv *priv;
+ struct device_node *node;
+ int i, error, irq, gain = 0;
+ unsigned int val, rev;
+ u32 gain32, keycodes[CAP1106_NUM_CHN];
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->regmap = devm_regmap_init_i2c(i2c_client, &cap1106_regmap_config);
+ if (IS_ERR(priv->regmap))
+ return PTR_ERR(priv->regmap);
+
+ error = regmap_read(priv->regmap, CAP1106_REG_PRODUCT_ID, &val);
+ if (error)
+ return error;
+
+ if (val != CAP1106_PRODUCT_ID) {
+ dev_err(dev, "Product ID: Got 0x%02x, expected 0x%02x\n",
+ val, CAP1106_PRODUCT_ID);
+ return -ENODEV;
+ }
+
+ error = regmap_read(priv->regmap, CAP1106_REG_MANUFACTURER_ID, &val);
+ if (error)
+ return error;
+
+ if (val != CAP1106_MANUFACTURER_ID) {
+ dev_err(dev, "Manufacturer ID: Got 0x%02x, expected 0x%02x\n",
+ val, CAP1106_MANUFACTURER_ID);
+ return -ENODEV;
+ }
+
+ error = regmap_read(priv->regmap, CAP1106_REG_REVISION, &rev);
+ if (error < 0)
+ return error;
+
+ dev_info(dev, "CAP1106 detected, revision 0x%02x\n", rev);
+ i2c_set_clientdata(i2c_client, priv);
+ node = dev->of_node;
+
+ if (!of_property_read_u32(node, "microchip,sensor-gain", &gain32)) {
+ if (is_power_of_2(gain32) && gain32 <= 8)
+ gain = ilog2(gain32);
+ else
+ dev_err(dev, "Invalid sensor-gain value %d\n", gain32);
+ }
+
+ BUILD_BUG_ON(ARRAY_SIZE(keycodes) != ARRAY_SIZE(priv->keycodes));
+
+ /* Provide some useful defaults */
+ for (i = 0; i < ARRAY_SIZE(keycodes); i++)
+ keycodes[i] = KEY_A + i;
+
+ of_property_read_u32_array(node, "linux,keycodes",
+ keycodes, ARRAY_SIZE(keycodes));
+
+ for (i = 0; i < ARRAY_SIZE(keycodes); i++)
+ priv->keycodes[i] = keycodes[i];
+
+ error = regmap_update_bits(priv->regmap, CAP1106_REG_MAIN_CONTROL,
+ CAP1106_REG_MAIN_CONTROL_GAIN_MASK,
+ gain << CAP1106_REG_MAIN_CONTROL_GAIN_SHIFT);
+ if (error)
+ return error;
+
+ /* Disable autorepeat. The Linux input system has its own handling. */
+ error = regmap_write(priv->regmap, CAP1106_REG_REPEAT_RATE, 0);
+ if (error)
+ return error;
+
+ priv->idev = devm_input_allocate_device(dev);
+ if (!priv->idev)
+ return -ENOMEM;
+
+ priv->idev->name = "CAP1106 capacitive touch sensor";
+ priv->idev->id.bustype = BUS_I2C;
+ priv->idev->evbit[0] = BIT_MASK(EV_KEY);
+
+ if (of_property_read_bool(node, "autorepeat"))
+ __set_bit(EV_REP, priv->idev->evbit);
+
+ for (i = 0; i < CAP1106_NUM_CHN; i++)
+ __set_bit(priv->keycodes[i], priv->idev->keybit);
+
+ priv->idev->id.vendor = CAP1106_MANUFACTURER_ID;
+ priv->idev->id.product = CAP1106_PRODUCT_ID;
+ priv->idev->id.version = rev;
+
+ priv->idev->open = cap1106_input_open;
+ priv->idev->close = cap1106_input_close;
+
+ input_set_drvdata(priv->idev, priv);
+
+ /*
+ * Put the device in deep sleep mode for now.
+ * ->open() will bring it back once the it is actually needed.
+ */
+ cap1106_set_sleep(priv, true);
+
+ error = input_register_device(priv->idev);
+ if (error)
+ return error;
+
+ irq = irq_of_parse_and_map(node, 0);
+ if (!irq) {
+ dev_err(dev, "Unable to parse or map IRQ\n");
+ return -ENXIO;
+ }
+
+ error = devm_request_threaded_irq(dev, irq, NULL, cap1106_thread_func,
+ IRQF_ONESHOT, dev_name(dev), priv);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+static const struct of_device_id cap1106_dt_ids[] = {
+ { .compatible = "microchip,cap1106", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, cap1106_dt_ids);
+
+static const struct i2c_device_id cap1106_i2c_ids[] = {
+ { "cap1106", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, cap1106_i2c_ids);
+
+static struct i2c_driver cap1106_i2c_driver = {
+ .driver = {
+ .name = "cap1106",
+ .owner = THIS_MODULE,
+ .of_match_table = cap1106_dt_ids,
+ },
+ .id_table = cap1106_i2c_ids,
+ .probe = cap1106_i2c_probe,
+};
+
+module_i2c_driver(cap1106_i2c_driver);
+
+MODULE_ALIAS("platform:cap1106");
+MODULE_DESCRIPTION("Microchip CAP1106 driver");
+MODULE_AUTHOR("Daniel Mack <linux@zonque.org>");
+MODULE_LICENSE("GPL v2");
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int imx_kbd_suspend(struct device *dev)
+static int __maybe_unused imx_kbd_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct imx_keypad *kbd = platform_get_drvdata(pdev);
return 0;
}
-static int imx_kbd_resume(struct device *dev)
+static int __maybe_unused imx_kbd_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct imx_keypad *kbd = platform_get_drvdata(pdev);
return ret;
}
-#endif
static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
dev_dbg(&client->dev, "keys FIFO is 0x%02x\n", ret);
- keypad = kzalloc(sizeof(struct max7359_keypad), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!keypad || !input_dev) {
+ keypad = devm_kzalloc(&client->dev, sizeof(struct max7359_keypad),
+ GFP_KERNEL);
+ if (!keypad) {
dev_err(&client->dev, "failed to allocate memory\n");
- error = -ENOMEM;
- goto failed_free_mem;
+ return -ENOMEM;
+ }
+
+ input_dev = devm_input_allocate_device(&client->dev);
+ if (!input_dev) {
+ dev_err(&client->dev, "failed to allocate input device\n");
+ return -ENOMEM;
}
keypad->client = client;
max7359_build_keycode(keypad, keymap_data);
- error = request_threaded_irq(client->irq, NULL, max7359_interrupt,
- IRQF_TRIGGER_LOW | IRQF_ONESHOT,
- client->name, keypad);
+ error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+ max7359_interrupt,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ client->name, keypad);
if (error) {
dev_err(&client->dev, "failed to register interrupt\n");
- goto failed_free_mem;
+ return error;
}
/* Register the input device */
error = input_register_device(input_dev);
if (error) {
dev_err(&client->dev, "failed to register input device\n");
- goto failed_free_irq;
+ return error;
}
/* Initialize MAX7359 */
i2c_set_clientdata(client, keypad);
device_init_wakeup(&client->dev, 1);
- return 0;
-
-failed_free_irq:
- free_irq(client->irq, keypad);
-failed_free_mem:
- input_free_device(input_dev);
- kfree(keypad);
- return error;
-}
-
-static int max7359_remove(struct i2c_client *client)
-{
- struct max7359_keypad *keypad = i2c_get_clientdata(client);
-
- free_irq(client->irq, keypad);
- input_unregister_device(keypad->input_dev);
- kfree(keypad);
-
return 0;
}
.pm = &max7359_pm,
},
.probe = max7359_probe,
- .remove = max7359_remove,
.id_table = max7359_ids,
};
default:
goto resubmit;
- break;
}
if (debug)
sizeof(*gpio_keys_pdata) +
sizeof(*gpio_keys) * MAX_NBUTTONS,
GFP_KERNEL);
+ if (!gpio_keys_pdata)
+ return ERR_PTR(-ENOMEM);
+
gpio_keys = (void *)(gpio_keys_pdata + 1);
for (info = button_info; info->name; info++) {
static int uinput_validate_absbits(struct input_dev *dev)
{
unsigned int cnt;
- int retval = 0;
+ int nslot;
+
+ if (!test_bit(EV_ABS, dev->evbit))
+ return 0;
+
+ /*
+ * Check if absmin/absmax/absfuzz/absflat are sane.
+ */
for (cnt = 0; cnt < ABS_CNT; cnt++) {
int min, max;
UINPUT_NAME, cnt,
input_abs_get_min(dev, cnt),
input_abs_get_max(dev, cnt));
- retval = -EINVAL;
- break;
+ return -EINVAL;
}
if (input_abs_get_flat(dev, cnt) >
input_abs_get_flat(dev, cnt),
input_abs_get_min(dev, cnt),
input_abs_get_max(dev, cnt));
- retval = -EINVAL;
- break;
+ return -EINVAL;
}
}
- return retval;
+
+ if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+ nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+ input_mt_init_slots(dev, nslot, 0);
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ input_set_events_per_packet(dev, 60);
+ }
+
+ return 0;
}
static int uinput_allocate_device(struct uinput_device *udev)
input_abs_set_flat(dev, i, user_dev->absflat[i]);
}
- /* check if absmin/absmax/absfuzz/absflat are filled as
- * told in Documentation/input/input-programming.txt */
- if (test_bit(EV_ABS, dev->evbit)) {
- retval = uinput_validate_absbits(dev);
- if (retval < 0)
- goto exit;
- if (test_bit(ABS_MT_SLOT, dev->absbit)) {
- int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
- input_mt_init_slots(dev, nslot, 0);
- } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
- input_set_events_per_packet(dev, 60);
- }
- }
+ retval = uinput_validate_absbits(dev);
+ if (retval < 0)
+ goto exit;
udev->state = UIST_SETUP_COMPLETE;
retval = count;
}
switch (cmd) {
+ case UI_GET_VERSION:
+ if (put_user(UINPUT_VERSION,
+ (unsigned int __user *)p))
+ retval = -EFAULT;
+ goto out;
+
case UI_DEV_CREATE:
retval = uinput_create_device(udev);
goto out;
#define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
#define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
6-byte ALPS packet */
+#define ALPS_IS_RUSHMORE 0x100 /* device is a rushmore */
+#define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
static const struct alps_model_info alps_model_data[] = {
{ { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
*
* The bitmaps don't have enough data to track fingers, so this function
* only generates points representing a bounding box of at most two contacts.
- * These two points are returned in x1, y1, x2, and y2.
+ * These two points are returned in fields->mt.
*/
static void alps_process_bitmap_dolphin(struct alps_data *priv,
- struct alps_fields *fields,
- int *x1, int *y1, int *x2, int *y2)
+ struct alps_fields *fields)
{
int box_middle_x, box_middle_y;
unsigned int x_map, y_map;
if (x_msb > priv->x_bits || y_msb > priv->y_bits)
return;
- *x1 = *y1 = *x2 = *y2 = 0;
-
if (fields->fingers > 1) {
start_bit = priv->x_bits - x_msb;
end_bit = priv->x_bits - x_lsb;
end_bit = y_msb - 1;
box_middle_y = (priv->y_max * (start_bit + end_bit)) /
(2 * (priv->y_bits - 1));
- *x1 = fields->x;
- *y1 = fields->y;
- *x2 = 2 * box_middle_x - *x1;
- *y2 = 2 * box_middle_y - *y1;
+ fields->mt[0] = fields->st;
+ fields->mt[1].x = 2 * box_middle_x - fields->mt[0].x;
+ fields->mt[1].y = 2 * box_middle_y - fields->mt[0].y;
+ }
+}
+
+static void alps_get_bitmap_points(unsigned int map,
+ struct alps_bitmap_point *low,
+ struct alps_bitmap_point *high,
+ int *fingers)
+{
+ struct alps_bitmap_point *point;
+ int i, bit, prev_bit = 0;
+
+ point = low;
+ for (i = 0; map != 0; i++, map >>= 1) {
+ bit = map & 1;
+ if (bit) {
+ if (!prev_bit) {
+ point->start_bit = i;
+ point->num_bits = 0;
+ (*fingers)++;
+ }
+ point->num_bits++;
+ } else {
+ if (prev_bit)
+ point = high;
+ }
+ prev_bit = bit;
}
}
*
* The bitmaps don't have enough data to track fingers, so this function
* only generates points representing a bounding box of all contacts.
- * These points are returned in x1, y1, x2, and y2 when the return value
+ * These points are returned in fields->mt when the return value
* is greater than 0.
*/
static int alps_process_bitmap(struct alps_data *priv,
- unsigned int x_map, unsigned int y_map,
- int *x1, int *y1, int *x2, int *y2)
+ struct alps_fields *fields)
{
- struct alps_bitmap_point {
- int start_bit;
- int num_bits;
- };
-
- int fingers_x = 0, fingers_y = 0, fingers;
- int i, bit, prev_bit;
+ int i, fingers_x = 0, fingers_y = 0, fingers;
struct alps_bitmap_point x_low = {0,}, x_high = {0,};
struct alps_bitmap_point y_low = {0,}, y_high = {0,};
- struct alps_bitmap_point *point;
- if (!x_map || !y_map)
+ if (!fields->x_map || !fields->y_map)
return 0;
- *x1 = *y1 = *x2 = *y2 = 0;
-
- prev_bit = 0;
- point = &x_low;
- for (i = 0; x_map != 0; i++, x_map >>= 1) {
- bit = x_map & 1;
- if (bit) {
- if (!prev_bit) {
- point->start_bit = i;
- fingers_x++;
- }
- point->num_bits++;
- } else {
- if (prev_bit)
- point = &x_high;
- else
- point->num_bits = 0;
- }
- prev_bit = bit;
- }
-
- /*
- * y bitmap is reversed for what we need (lower positions are in
- * higher bits), so we process from the top end.
- */
- y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - priv->y_bits);
- prev_bit = 0;
- point = &y_low;
- for (i = 0; y_map != 0; i++, y_map <<= 1) {
- bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 1));
- if (bit) {
- if (!prev_bit) {
- point->start_bit = i;
- fingers_y++;
- }
- point->num_bits++;
- } else {
- if (prev_bit)
- point = &y_high;
- else
- point->num_bits = 0;
- }
- prev_bit = bit;
- }
+ alps_get_bitmap_points(fields->x_map, &x_low, &x_high, &fingers_x);
+ alps_get_bitmap_points(fields->y_map, &y_low, &y_high, &fingers_y);
/*
* Fingers can overlap, so we use the maximum count of fingers
fingers = max(fingers_x, fingers_y);
/*
- * If total fingers is > 1 but either axis reports only a single
- * contact, we have overlapping or adjacent fingers. For the
- * purposes of creating a bounding box, divide the single contact
- * (roughly) equally between the two points.
+ * If an axis reports only a single contact, we have overlapping or
+ * adjacent fingers. Divide the single contact between the two points.
*/
- if (fingers > 1) {
- if (fingers_x == 1) {
- i = x_low.num_bits / 2;
- x_low.num_bits = x_low.num_bits - i;
- x_high.start_bit = x_low.start_bit + i;
- x_high.num_bits = max(i, 1);
- } else if (fingers_y == 1) {
- i = y_low.num_bits / 2;
- y_low.num_bits = y_low.num_bits - i;
- y_high.start_bit = y_low.start_bit + i;
- y_high.num_bits = max(i, 1);
- }
+ if (fingers_x == 1) {
+ i = (x_low.num_bits - 1) / 2;
+ x_low.num_bits = x_low.num_bits - i;
+ x_high.start_bit = x_low.start_bit + i;
+ x_high.num_bits = max(i, 1);
+ }
+ if (fingers_y == 1) {
+ i = (y_low.num_bits - 1) / 2;
+ y_low.num_bits = y_low.num_bits - i;
+ y_high.start_bit = y_low.start_bit + i;
+ y_high.num_bits = max(i, 1);
}
- *x1 = (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
- (2 * (priv->x_bits - 1));
- *y1 = (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
- (2 * (priv->y_bits - 1));
-
- if (fingers > 1) {
- *x2 = (priv->x_max *
- (2 * x_high.start_bit + x_high.num_bits - 1)) /
- (2 * (priv->x_bits - 1));
- *y2 = (priv->y_max *
- (2 * y_high.start_bit + y_high.num_bits - 1)) /
- (2 * (priv->y_bits - 1));
+ fields->mt[0].x =
+ (priv->x_max * (2 * x_low.start_bit + x_low.num_bits - 1)) /
+ (2 * (priv->x_bits - 1));
+ fields->mt[0].y =
+ (priv->y_max * (2 * y_low.start_bit + y_low.num_bits - 1)) /
+ (2 * (priv->y_bits - 1));
+
+ fields->mt[1].x =
+ (priv->x_max * (2 * x_high.start_bit + x_high.num_bits - 1)) /
+ (2 * (priv->x_bits - 1));
+ fields->mt[1].y =
+ (priv->y_max * (2 * y_high.start_bit + y_high.num_bits - 1)) /
+ (2 * (priv->y_bits - 1));
+
+ /* y-bitmap order is reversed, except on rushmore */
+ if (!(priv->flags & ALPS_IS_RUSHMORE)) {
+ fields->mt[0].y = priv->y_max - fields->mt[0].y;
+ fields->mt[1].y = priv->y_max - fields->mt[1].y;
}
return fingers;
}
-static void alps_set_slot(struct input_dev *dev, int slot, bool active,
- int x, int y)
+static void alps_set_slot(struct input_dev *dev, int slot, int x, int y)
{
input_mt_slot(dev, slot);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
- if (active) {
- input_report_abs(dev, ABS_MT_POSITION_X, x);
- input_report_abs(dev, ABS_MT_POSITION_Y, y);
- }
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+ input_report_abs(dev, ABS_MT_POSITION_X, x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, y);
}
-static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers,
- int x1, int y1, int x2, int y2)
+static void alps_report_mt_data(struct psmouse *psmouse, int n)
{
- alps_set_slot(dev, 0, num_fingers != 0, x1, y1);
- alps_set_slot(dev, 1, num_fingers == 2, x2, y2);
+ struct alps_data *priv = psmouse->private;
+ struct input_dev *dev = psmouse->dev;
+ struct alps_fields *f = &priv->f;
+ int i, slot[MAX_TOUCHES];
+
+ input_mt_assign_slots(dev, slot, f->mt, n);
+ for (i = 0; i < n; i++)
+ alps_set_slot(dev, slot[i], f->mt[i].x, f->mt[i].y);
+
+ input_mt_sync_frame(dev);
+}
+
+static void alps_report_semi_mt_data(struct psmouse *psmouse, int fingers)
+{
+ struct alps_data *priv = psmouse->private;
+ struct input_dev *dev = psmouse->dev;
+ struct alps_fields *f = &priv->f;
+
+ /* Use st data when we don't have mt data */
+ if (fingers < 2) {
+ f->mt[0].x = f->st.x;
+ f->mt[0].y = f->st.y;
+ fingers = f->pressure > 0 ? 1 : 0;
+ }
+
+ alps_report_mt_data(psmouse, (fingers <= 2) ? fingers : 2);
+
+ input_mt_report_finger_count(dev, fingers);
+
+ input_report_key(dev, BTN_LEFT, f->left);
+ input_report_key(dev, BTN_RIGHT, f->right);
+ input_report_key(dev, BTN_MIDDLE, f->middle);
+
+ input_report_abs(dev, ABS_PRESSURE, f->pressure);
+
+ input_sync(dev);
}
static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
f->ts_middle = !!(p[3] & 0x40);
}
-static void alps_decode_pinnacle(struct alps_fields *f, unsigned char *p,
+static int alps_decode_pinnacle(struct alps_fields *f, unsigned char *p,
struct psmouse *psmouse)
{
f->first_mp = !!(p[4] & 0x40);
((p[2] & 0x7f) << 1) |
(p[4] & 0x01);
- f->x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
+ f->st.x = ((p[1] & 0x7f) << 4) | ((p[4] & 0x30) >> 2) |
((p[0] & 0x30) >> 4);
- f->y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
- f->z = p[5] & 0x7f;
+ f->st.y = ((p[2] & 0x7f) << 4) | (p[4] & 0x0f);
+ f->pressure = p[5] & 0x7f;
alps_decode_buttons_v3(f, p);
+
+ return 0;
}
-static void alps_decode_rushmore(struct alps_fields *f, unsigned char *p,
+static int alps_decode_rushmore(struct alps_fields *f, unsigned char *p,
struct psmouse *psmouse)
{
alps_decode_pinnacle(f, p, psmouse);
+ /* Rushmore's packet decode has a bit difference with Pinnacle's */
+ f->is_mp = !!(p[5] & 0x40);
+ f->fingers = max((p[5] & 0x3), ((p[5] >> 2) & 0x3)) + 1;
f->x_map |= (p[5] & 0x10) << 11;
f->y_map |= (p[5] & 0x20) << 6;
+
+ return 0;
}
-static void alps_decode_dolphin(struct alps_fields *f, unsigned char *p,
+static int alps_decode_dolphin(struct alps_fields *f, unsigned char *p,
struct psmouse *psmouse)
{
u64 palm_data = 0;
f->is_mp = !!(p[0] & 0x20);
if (!f->is_mp) {
- f->x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7));
- f->y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3));
- f->z = (p[0] & 4) ? 0 : p[5] & 0x7f;
+ f->st.x = ((p[1] & 0x7f) | ((p[4] & 0x0f) << 7));
+ f->st.y = ((p[2] & 0x7f) | ((p[4] & 0xf0) << 3));
+ f->pressure = (p[0] & 4) ? 0 : p[5] & 0x7f;
alps_decode_buttons_v3(f, p);
} else {
f->fingers = ((p[0] & 0x6) >> 1 |
f->x_map = (palm_data >> priv->y_bits) &
(BIT(priv->x_bits) - 1);
}
+
+ return 0;
}
static void alps_process_touchpad_packet_v3_v5(struct psmouse *psmouse)
{
struct alps_data *priv = psmouse->private;
unsigned char *packet = psmouse->packet;
- struct input_dev *dev = psmouse->dev;
struct input_dev *dev2 = priv->dev2;
- int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
- int fingers = 0, bmap_fn;
- struct alps_fields f = {0};
+ struct alps_fields *f = &priv->f;
+ int fingers = 0;
- priv->decode_fields(&f, packet, psmouse);
+ memset(f, 0, sizeof(*f));
+
+ priv->decode_fields(f, packet, psmouse);
/*
* There's no single feature of touchpad position and bitmap packets
* packet. Check for this, and when it happens process the
* position packet as usual.
*/
- if (f.is_mp) {
- fingers = f.fingers;
+ if (f->is_mp) {
+ fingers = f->fingers;
if (priv->proto_version == ALPS_PROTO_V3) {
- bmap_fn = alps_process_bitmap(priv, f.x_map,
- f.y_map, &x1, &y1,
- &x2, &y2);
-
- /*
- * We shouldn't report more than one finger if
- * we don't have two coordinates.
- */
- if (fingers > 1 && bmap_fn < 2)
- fingers = bmap_fn;
+ if (alps_process_bitmap(priv, f) == 0)
+ fingers = 0; /* Use st data */
/* Now process position packet */
- priv->decode_fields(&f, priv->multi_data,
+ priv->decode_fields(f, priv->multi_data,
psmouse);
} else {
/*
* calculate Pt2, so we need to do position
* packet decode first.
*/
- priv->decode_fields(&f, priv->multi_data,
+ priv->decode_fields(f, priv->multi_data,
psmouse);
/*
* Since Dolphin's finger number is reliable,
* there is no need to compare with bmap_fn.
*/
- alps_process_bitmap_dolphin(priv, &f, &x1, &y1,
- &x2, &y2);
+ alps_process_bitmap_dolphin(priv, f);
}
} else {
priv->multi_packet = 0;
* out misidentified bitmap packets, we reject anything with this
* bit set.
*/
- if (f.is_mp)
+ if (f->is_mp)
return;
- if (!priv->multi_packet && f.first_mp) {
+ if (!priv->multi_packet && f->first_mp) {
priv->multi_packet = 1;
memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
return;
* with x, y, and z all zero, so these seem to be flukes.
* Ignore them.
*/
- if (f.x && f.y && !f.z)
+ if (f->st.x && f->st.y && !f->pressure)
return;
- /*
- * If we don't have MT data or the bitmaps were empty, we have
- * to rely on ST data.
- */
- if (!fingers) {
- x1 = f.x;
- y1 = f.y;
- fingers = f.z > 0 ? 1 : 0;
- }
-
- if (f.z >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
- else
- input_report_key(dev, BTN_TOUCH, 0);
-
- alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
-
- input_mt_report_finger_count(dev, fingers);
-
- input_report_key(dev, BTN_LEFT, f.left);
- input_report_key(dev, BTN_RIGHT, f.right);
- input_report_key(dev, BTN_MIDDLE, f.middle);
-
- if (f.z > 0) {
- input_report_abs(dev, ABS_X, f.x);
- input_report_abs(dev, ABS_Y, f.y);
- }
- input_report_abs(dev, ABS_PRESSURE, f.z);
-
- input_sync(dev);
+ alps_report_semi_mt_data(psmouse, fingers);
if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
- input_report_key(dev2, BTN_LEFT, f.ts_left);
- input_report_key(dev2, BTN_RIGHT, f.ts_right);
- input_report_key(dev2, BTN_MIDDLE, f.ts_middle);
+ input_report_key(dev2, BTN_LEFT, f->ts_left);
+ input_report_key(dev2, BTN_RIGHT, f->ts_right);
+ input_report_key(dev2, BTN_MIDDLE, f->ts_middle);
input_sync(dev2);
}
}
{
struct alps_data *priv = psmouse->private;
unsigned char *packet = psmouse->packet;
- struct input_dev *dev = psmouse->dev;
+ struct alps_fields *f = &priv->f;
int offset;
- int x, y, z;
- int left, right;
- int x1, y1, x2, y2;
- int fingers = 0;
- unsigned int x_bitmap, y_bitmap;
/*
* v4 has a 6-byte encoding for bitmap data, but this data is
if (++priv->multi_packet > 2) {
priv->multi_packet = 0;
- x_bitmap = ((priv->multi_data[2] & 0x1f) << 10) |
+ f->x_map = ((priv->multi_data[2] & 0x1f) << 10) |
((priv->multi_data[3] & 0x60) << 3) |
((priv->multi_data[0] & 0x3f) << 2) |
((priv->multi_data[1] & 0x60) >> 5);
- y_bitmap = ((priv->multi_data[5] & 0x01) << 10) |
+ f->y_map = ((priv->multi_data[5] & 0x01) << 10) |
((priv->multi_data[3] & 0x1f) << 5) |
(priv->multi_data[1] & 0x1f);
- fingers = alps_process_bitmap(priv, x_bitmap, y_bitmap,
- &x1, &y1, &x2, &y2);
-
- /* Store MT data.*/
- priv->fingers = fingers;
- priv->x1 = x1;
- priv->x2 = x2;
- priv->y1 = y1;
- priv->y2 = y2;
+ f->fingers = alps_process_bitmap(priv, f);
}
- left = packet[4] & 0x01;
- right = packet[4] & 0x02;
+ f->left = packet[4] & 0x01;
+ f->right = packet[4] & 0x02;
- x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
- ((packet[0] & 0x30) >> 4);
- y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
- z = packet[5] & 0x7f;
+ f->st.x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
+ ((packet[0] & 0x30) >> 4);
+ f->st.y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
+ f->pressure = packet[5] & 0x7f;
- /*
- * If there were no contacts in the bitmap, use ST
- * points in MT reports.
- * If there were two contacts or more, report MT data.
- */
- if (priv->fingers < 2) {
- x1 = x;
- y1 = y;
- fingers = z > 0 ? 1 : 0;
- } else {
- fingers = priv->fingers;
- x1 = priv->x1;
- x2 = priv->x2;
- y1 = priv->y1;
- y2 = priv->y2;
+ alps_report_semi_mt_data(psmouse, f->fingers);
+}
+
+static bool alps_is_valid_package_v7(struct psmouse *psmouse)
+{
+ switch (psmouse->pktcnt) {
+ case 3:
+ return (psmouse->packet[2] & 0x40) == 0x40;
+ case 4:
+ return (psmouse->packet[3] & 0x48) == 0x48;
+ case 6:
+ return (psmouse->packet[5] & 0x40) == 0x00;
}
+ return true;
+}
- if (z >= 64)
- input_report_key(dev, BTN_TOUCH, 1);
+static unsigned char alps_get_packet_id_v7(char *byte)
+{
+ unsigned char packet_id;
+
+ if (byte[4] & 0x40)
+ packet_id = V7_PACKET_ID_TWO;
+ else if (byte[4] & 0x01)
+ packet_id = V7_PACKET_ID_MULTI;
+ else if ((byte[0] & 0x10) && !(byte[4] & 0x43))
+ packet_id = V7_PACKET_ID_NEW;
+ else if (byte[1] == 0x00 && byte[4] == 0x00)
+ packet_id = V7_PACKET_ID_IDLE;
else
- input_report_key(dev, BTN_TOUCH, 0);
+ packet_id = V7_PACKET_ID_UNKNOWN;
- alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
+ return packet_id;
+}
- input_mt_report_finger_count(dev, fingers);
+static void alps_get_finger_coordinate_v7(struct input_mt_pos *mt,
+ unsigned char *pkt,
+ unsigned char pkt_id)
+{
+ mt[0].x = ((pkt[2] & 0x80) << 4);
+ mt[0].x |= ((pkt[2] & 0x3F) << 5);
+ mt[0].x |= ((pkt[3] & 0x30) >> 1);
+ mt[0].x |= (pkt[3] & 0x07);
+ mt[0].y = (pkt[1] << 3) | (pkt[0] & 0x07);
+
+ mt[1].x = ((pkt[3] & 0x80) << 4);
+ mt[1].x |= ((pkt[4] & 0x80) << 3);
+ mt[1].x |= ((pkt[4] & 0x3F) << 4);
+ mt[1].y = ((pkt[5] & 0x80) << 3);
+ mt[1].y |= ((pkt[5] & 0x3F) << 4);
+
+ switch (pkt_id) {
+ case V7_PACKET_ID_TWO:
+ mt[1].x &= ~0x000F;
+ mt[1].y |= 0x000F;
+ break;
- input_report_key(dev, BTN_LEFT, left);
- input_report_key(dev, BTN_RIGHT, right);
+ case V7_PACKET_ID_MULTI:
+ mt[1].x &= ~0x003F;
+ mt[1].y &= ~0x0020;
+ mt[1].y |= ((pkt[4] & 0x02) << 4);
+ mt[1].y |= 0x001F;
+ break;
- if (z > 0) {
- input_report_abs(dev, ABS_X, x);
- input_report_abs(dev, ABS_Y, y);
+ case V7_PACKET_ID_NEW:
+ mt[1].x &= ~0x003F;
+ mt[1].x |= (pkt[0] & 0x20);
+ mt[1].y |= 0x000F;
+ break;
}
- input_report_abs(dev, ABS_PRESSURE, z);
+
+ mt[0].y = 0x7FF - mt[0].y;
+ mt[1].y = 0x7FF - mt[1].y;
+}
+
+static int alps_get_mt_count(struct input_mt_pos *mt)
+{
+ int i;
+
+ for (i = 0; i < MAX_TOUCHES && mt[i].x != 0 && mt[i].y != 0; i++)
+ /* empty */;
+
+ return i;
+}
+
+static int alps_decode_packet_v7(struct alps_fields *f,
+ unsigned char *p,
+ struct psmouse *psmouse)
+{
+ unsigned char pkt_id;
+
+ pkt_id = alps_get_packet_id_v7(p);
+ if (pkt_id == V7_PACKET_ID_IDLE)
+ return 0;
+ if (pkt_id == V7_PACKET_ID_UNKNOWN)
+ return -1;
+
+ alps_get_finger_coordinate_v7(f->mt, p, pkt_id);
+
+ if (pkt_id == V7_PACKET_ID_TWO || pkt_id == V7_PACKET_ID_MULTI) {
+ f->left = (p[0] & 0x80) >> 7;
+ f->right = (p[0] & 0x20) >> 5;
+ f->middle = (p[0] & 0x10) >> 4;
+ }
+
+ if (pkt_id == V7_PACKET_ID_TWO)
+ f->fingers = alps_get_mt_count(f->mt);
+ else if (pkt_id == V7_PACKET_ID_MULTI)
+ f->fingers = 3 + (p[5] & 0x03);
+
+ return 0;
+}
+
+static void alps_process_trackstick_packet_v7(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ struct input_dev *dev2 = priv->dev2;
+ int x, y, z, left, right, middle;
+
+ /*
+ * b7 b6 b5 b4 b3 b2 b1 b0
+ * Byte0 0 1 0 0 1 0 0 0
+ * Byte1 1 1 * * 1 M R L
+ * Byte2 X7 1 X5 X4 X3 X2 X1 X0
+ * Byte3 Z6 1 Y6 X6 1 Y2 Y1 Y0
+ * Byte4 Y7 0 Y5 Y4 Y3 1 1 0
+ * Byte5 T&P 0 Z5 Z4 Z3 Z2 Z1 Z0
+ * M / R / L: Middle / Right / Left button
+ */
+
+ x = ((packet[2] & 0xbf)) | ((packet[3] & 0x10) << 2);
+ y = (packet[3] & 0x07) | (packet[4] & 0xb8) |
+ ((packet[3] & 0x20) << 1);
+ z = (packet[5] & 0x3f) | ((packet[3] & 0x80) >> 1);
+
+ left = (packet[1] & 0x01);
+ right = (packet[1] & 0x02) >> 1;
+ middle = (packet[1] & 0x04) >> 2;
+
+ /* Divide 2 since trackpoint's speed is too fast */
+ input_report_rel(dev2, REL_X, (char)x / 2);
+ input_report_rel(dev2, REL_Y, -((char)y / 2));
+
+ input_report_key(dev2, BTN_LEFT, left);
+ input_report_key(dev2, BTN_RIGHT, right);
+ input_report_key(dev2, BTN_MIDDLE, middle);
+
+ input_sync(dev2);
+}
+
+static void alps_process_touchpad_packet_v7(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ struct input_dev *dev = psmouse->dev;
+ struct alps_fields *f = &priv->f;
+
+ memset(f, 0, sizeof(*f));
+
+ if (priv->decode_fields(f, psmouse->packet, psmouse))
+ return;
+
+ alps_report_mt_data(psmouse, alps_get_mt_count(f->mt));
+
+ input_mt_report_finger_count(dev, f->fingers);
+
+ input_report_key(dev, BTN_LEFT, f->left);
+ input_report_key(dev, BTN_RIGHT, f->right);
+ input_report_key(dev, BTN_MIDDLE, f->middle);
input_sync(dev);
}
+static void alps_process_packet_v7(struct psmouse *psmouse)
+{
+ unsigned char *packet = psmouse->packet;
+
+ if (packet[0] == 0x48 && (packet[4] & 0x47) == 0x06)
+ alps_process_trackstick_packet_v7(psmouse);
+ else
+ alps_process_touchpad_packet_v7(psmouse);
+}
+
static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
unsigned char packet[],
bool report_buttons)
return PSMOUSE_BAD_DATA;
}
+ if (priv->proto_version == ALPS_PROTO_V7 &&
+ !alps_is_valid_package_v7(psmouse)) {
+ psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
+ psmouse->pktcnt - 1,
+ psmouse->packet[psmouse->pktcnt - 1]);
+ return PSMOUSE_BAD_DATA;
+ }
+
if (psmouse->pktcnt == psmouse->pktsize) {
priv->process_packet(psmouse);
return PSMOUSE_FULL_PACKET;
return 0;
}
+static bool alps_check_valid_firmware_id(unsigned char id[])
+{
+ if (id[0] == 0x73)
+ return true;
+
+ if (id[0] == 0x88 &&
+ (id[1] == 0x07 ||
+ id[1] == 0x08 ||
+ (id[1] & 0xf0) == 0xb0 ||
+ (id[1] & 0xf0) == 0xc0)) {
+ return true;
+ }
+
+ return false;
+}
+
static int alps_enter_command_mode(struct psmouse *psmouse)
{
unsigned char param[4];
return -1;
}
- if ((param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) &&
- param[0] != 0x73) {
+ if (!alps_check_valid_firmware_id(param)) {
psmouse_dbg(psmouse,
"unknown response while entering command mode\n");
return -1;
return -1;
}
+static int alps_get_v3_v7_resolution(struct psmouse *psmouse, int reg_pitch)
+{
+ int reg, x_pitch, y_pitch, x_electrode, y_electrode, x_phys, y_phys;
+ struct alps_data *priv = psmouse->private;
+
+ reg = alps_command_mode_read_reg(psmouse, reg_pitch);
+ if (reg < 0)
+ return reg;
+
+ x_pitch = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */
+ x_pitch = 50 + 2 * x_pitch; /* In 0.1 mm units */
+
+ y_pitch = (char)reg >> 4; /* sign extend upper 4 bits */
+ y_pitch = 36 + 2 * y_pitch; /* In 0.1 mm units */
+
+ reg = alps_command_mode_read_reg(psmouse, reg_pitch + 1);
+ if (reg < 0)
+ return reg;
+
+ x_electrode = (char)(reg << 4) >> 4; /* sign extend lower 4 bits */
+ x_electrode = 17 + x_electrode;
+
+ y_electrode = (char)reg >> 4; /* sign extend upper 4 bits */
+ y_electrode = 13 + y_electrode;
+
+ x_phys = x_pitch * (x_electrode - 1); /* In 0.1 mm units */
+ y_phys = y_pitch * (y_electrode - 1); /* In 0.1 mm units */
+
+ priv->x_res = priv->x_max * 10 / x_phys; /* units / mm */
+ priv->y_res = priv->y_max * 10 / y_phys; /* units / mm */
+
+ psmouse_dbg(psmouse,
+ "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n",
+ x_pitch, y_pitch, x_electrode, y_electrode,
+ x_phys / 10, y_phys / 10, priv->x_res, priv->y_res);
+
+ return 0;
+}
+
static int alps_hw_init_rushmore_v3(struct psmouse *psmouse)
{
struct alps_data *priv = psmouse->private;
alps_command_mode_write_reg(psmouse, 0xc2cb, 0x00))
goto error;
+ if (alps_get_v3_v7_resolution(psmouse, 0xc2da))
+ goto error;
+
reg_val = alps_command_mode_read_reg(psmouse, 0xc2c6);
if (reg_val == -1)
goto error;
return 0;
}
+static int alps_hw_init_v7(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ int reg_val, ret = -1;
+
+ if (alps_enter_command_mode(psmouse) ||
+ alps_command_mode_read_reg(psmouse, 0xc2d9) == -1)
+ goto error;
+
+ if (alps_get_v3_v7_resolution(psmouse, 0xc397))
+ goto error;
+
+ if (alps_command_mode_write_reg(psmouse, 0xc2c9, 0x64))
+ goto error;
+
+ reg_val = alps_command_mode_read_reg(psmouse, 0xc2c4);
+ if (reg_val == -1)
+ goto error;
+ if (__alps_command_mode_write_reg(psmouse, reg_val | 0x02))
+ goto error;
+
+ alps_exit_command_mode(psmouse);
+ return ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+
+error:
+ alps_exit_command_mode(psmouse);
+ return ret;
+}
+
static void alps_set_defaults(struct alps_data *priv)
{
priv->byte0 = 0x8f;
priv->x_max = 2047;
priv->y_max = 1535;
break;
+ case ALPS_PROTO_V7:
+ priv->hw_init = alps_hw_init_v7;
+ priv->process_packet = alps_process_packet_v7;
+ priv->decode_fields = alps_decode_packet_v7;
+ priv->set_abs_params = alps_set_abs_params_mt;
+ priv->nibble_commands = alps_v3_nibble_commands;
+ priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
+ priv->x_max = 0xfff;
+ priv->y_max = 0x7ff;
+ priv->byte0 = 0x48;
+ priv->mask0 = 0x48;
+
+ if (priv->fw_ver[1] != 0xba)
+ priv->flags |= ALPS_BUTTONPAD;
+ break;
}
}
alps_exit_command_mode(psmouse))
return -EIO;
+ /* Save the Firmware version */
+ memcpy(priv->fw_ver, ec, 3);
+
if (alps_match_table(psmouse, priv, e7, ec) == 0) {
return 0;
} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 &&
return -EIO;
else
return 0;
+ } else if (ec[0] == 0x88 &&
+ ((ec[1] & 0xf0) == 0xb0 || (ec[1] & 0xf0) == 0xc0)) {
+ priv->proto_version = ALPS_PROTO_V7;
+ alps_set_defaults(priv);
+
+ return 0;
} else if (ec[0] == 0x88 && ec[1] == 0x08) {
priv->proto_version = ALPS_PROTO_V3;
alps_set_defaults(priv);
priv->decode_fields = alps_decode_rushmore;
priv->x_bits = 16;
priv->y_bits = 12;
+ priv->flags |= ALPS_IS_RUSHMORE;
/* hack to make addr_command, nibble_command available */
psmouse->private = priv;
static void alps_set_abs_params_mt(struct alps_data *priv,
struct input_dev *dev1)
{
- set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
- input_mt_init_slots(dev1, 2, 0);
input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0);
input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0);
- set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit);
+ input_abs_set_res(dev1, ABS_MT_POSITION_X, priv->x_res);
+ input_abs_set_res(dev1, ABS_MT_POSITION_Y, priv->y_res);
+
+ input_mt_init_slots(dev1, MAX_TOUCHES, INPUT_MT_POINTER |
+ INPUT_MT_DROP_UNUSED | INPUT_MT_TRACK | INPUT_MT_SEMI_MT);
+
set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
- input_set_abs_params(dev1, ABS_X, 0, priv->x_max, 0, 0);
- input_set_abs_params(dev1, ABS_Y, 0, priv->y_max, 0, 0);
+ /* V7 is real multi-touch */
+ if (priv->proto_version == ALPS_PROTO_V7)
+ clear_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
}
int alps_init(struct psmouse *psmouse)
dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
priv->set_abs_params(priv, dev1);
- input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
+ /* No pressure on V7 */
+ if (priv->proto_version != ALPS_PROTO_V7)
+ input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
if (priv->flags & ALPS_WHEEL) {
dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
+ } else if (priv->flags & ALPS_BUTTONPAD) {
+ set_bit(INPUT_PROP_BUTTONPAD, dev1->propbit);
+ clear_bit(BTN_RIGHT, dev1->keybit);
} else {
dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
}
#ifndef _ALPS_H
#define _ALPS_H
+#include <linux/input/mt.h>
+
#define ALPS_PROTO_V1 1
#define ALPS_PROTO_V2 2
#define ALPS_PROTO_V3 3
#define ALPS_PROTO_V4 4
#define ALPS_PROTO_V5 5
#define ALPS_PROTO_V6 6
+#define ALPS_PROTO_V7 7 /* t3btl t4s */
+
+#define MAX_TOUCHES 2
#define DOLPHIN_COUNT_PER_ELECTRODE 64
#define DOLPHIN_PROFILE_XOFFSET 8 /* x-electrode offset */
#define DOLPHIN_PROFILE_YOFFSET 1 /* y-electrode offset */
+/*
+ * enum V7_PACKET_ID - defines the packet type for V7
+ * V7_PACKET_ID_IDLE: There's no finger and no button activity.
+ * V7_PACKET_ID_TWO: There's one or two non-resting fingers on touchpad
+ * or there's button activities.
+ * V7_PACKET_ID_MULTI: There are at least three non-resting fingers.
+ * V7_PACKET_ID_NEW: The finger position in slot is not continues from
+ * previous packet.
+*/
+enum V7_PACKET_ID {
+ V7_PACKET_ID_IDLE,
+ V7_PACKET_ID_TWO,
+ V7_PACKET_ID_MULTI,
+ V7_PACKET_ID_NEW,
+ V7_PACKET_ID_UNKNOWN,
+};
+
/**
* struct alps_model_info - touchpad ID table
* @signature: E7 response string to match.
unsigned char command_mode_resp;
unsigned char proto_version;
unsigned char byte0, mask0;
- unsigned char flags;
+ int flags;
};
/**
unsigned char data;
};
+struct alps_bitmap_point {
+ int start_bit;
+ int num_bits;
+};
+
/**
* struct alps_fields - decoded version of the report packet
* @x_map: Bitmap of active X positions for MT.
* @y_map: Bitmap of active Y positions for MT.
* @fingers: Number of fingers for MT.
- * @x: X position for ST.
- * @y: Y position for ST.
- * @z: Z position for ST.
+ * @pressure: Pressure.
+ * @st: position for ST.
+ * @mt: position for MT.
* @first_mp: Packet is the first of a multi-packet report.
* @is_mp: Packet is part of a multi-packet report.
* @left: Left touchpad button is active.
unsigned int x_map;
unsigned int y_map;
unsigned int fingers;
- unsigned int x;
- unsigned int y;
- unsigned int z;
+
+ int pressure;
+ struct input_mt_pos st;
+ struct input_mt_pos mt[MAX_TOUCHES];
+
unsigned int first_mp:1;
unsigned int is_mp:1;
* known format for this model. The first byte of the report, ANDed with
* mask0, should match byte0.
* @mask0: The mask used to check the first byte of the report.
+ * @fw_ver: cached copy of firmware version (EC report)
* @flags: Additional device capabilities (passthrough port, trackstick, etc.).
* @x_max: Largest possible X position value.
* @y_max: Largest possible Y position value.
* @prev_fin: Finger bit from previous packet.
* @multi_packet: Multi-packet data in progress.
* @multi_data: Saved multi-packet data.
- * @x1: First X coordinate from last MT report.
- * @x2: Second X coordinate from last MT report.
- * @y1: First Y coordinate from last MT report.
- * @y2: Second Y coordinate from last MT report.
- * @fingers: Number of fingers from last MT report.
+ * @f: Decoded packet data fields.
* @quirks: Bitmap of ALPS_QUIRK_*.
* @timer: Timer for flushing out the final report packet in the stream.
*/
int addr_command;
unsigned char proto_version;
unsigned char byte0, mask0;
- unsigned char flags;
+ unsigned char fw_ver[3];
+ int flags;
int x_max;
int y_max;
int x_bits;
int y_bits;
+ unsigned int x_res;
+ unsigned int y_res;
int (*hw_init)(struct psmouse *psmouse);
void (*process_packet)(struct psmouse *psmouse);
- void (*decode_fields)(struct alps_fields *f, unsigned char *p,
+ int (*decode_fields)(struct alps_fields *f, unsigned char *p,
struct psmouse *psmouse);
void (*set_abs_params)(struct alps_data *priv, struct input_dev *dev1);
int prev_fin;
int multi_packet;
unsigned char multi_data[6];
- int x1, x2, y1, y2;
- int fingers;
+ struct alps_fields f;
u8 quirks;
struct timer_list timer;
};
serio_interrupt(kbd_dev->hv_serio, scan_code, 0);
}
spin_unlock_irqrestore(&kbd_dev->lock, flags);
+
+ /*
+ * Only trigger a wakeup on key down, otherwise
+ * "echo freeze > /sys/power/state" can't really enter the
+ * state because the Enter-UP can trigger a wakeup at once.
+ */
+ if (!(info & IS_BREAK))
+ pm_wakeup_event(&hv_dev->device, 0);
+
break;
default:
goto err_close_vmbus;
serio_register_port(kbd_dev->hv_serio);
+
+ device_init_wakeup(&hv_dev->device, true);
+
return 0;
err_close_vmbus:
{
struct hv_kbd_dev *kbd_dev = hv_get_drvdata(hv_dev);
+ device_init_wakeup(&hv_dev->device, false);
serio_unregister_port(kbd_dev->hv_serio);
vmbus_close(hv_dev->channel);
kfree(kbd_dev);
To compile this driver as a module, choose M here: the
module will be called kbtab.
+config TABLET_SERIAL_WACOM4
+ tristate "Wacom protocol 4 serial tablet support"
+ select SERIO
+ help
+ Say Y here if you want to use Wacom protocol 4 serial tablets.
+ E.g. serial versions of the Cintiq, Graphire or Penpartner.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wacom_serial4.
+
endif
obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o
obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
+obj-$(CONFIG_TABLET_SERIAL_WACOM4) += wacom_serial4.o
--- /dev/null
+/*
+ * Wacom protocol 4 serial tablet driver
+ *
+ * Copyright 2014 Hans de Goede <hdegoede@redhat.com>
+ * Copyright 2011-2012 Julian Squires <julian@cipht.net>
+ *
+ * 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 of 2 of the License, or (at your
+ * option) any later version. See the file COPYING in the main directory of
+ * this archive for more details.
+ *
+ * Many thanks to Bill Seremetis, without whom PenPartner support
+ * would not have been possible. Thanks to Patrick Mahoney.
+ *
+ * This driver was developed with reference to much code written by others,
+ * particularly:
+ * - elo, gunze drivers by Vojtech Pavlik <vojtech@ucw.cz>;
+ * - wacom_w8001 driver by Jaya Kumar <jayakumar.lkml@gmail.com>;
+ * - the USB wacom input driver, credited to many people
+ * (see drivers/input/tablet/wacom.h);
+ * - new and old versions of linuxwacom / xf86-input-wacom credited to
+ * Frederic Lepied, France. <Lepied@XFree86.org> and
+ * Ping Cheng, Wacom. <pingc@wacom.com>;
+ * - and xf86wacom.c (a presumably ancient version of the linuxwacom code),
+ * by Frederic Lepied and Raph Levien <raph@gtk.org>.
+ *
+ * To do:
+ * - support pad buttons; (requires access to a model with pad buttons)
+ * - support (protocol 4-style) tilt (requires access to a > 1.4 rom model)
+ */
+
+/*
+ * Wacom serial protocol 4 documentation taken from linuxwacom-0.9.9 code,
+ * protocol 4 uses 7 or 9 byte of data in the following format:
+ *
+ * Byte 1
+ * bit 7 Sync bit always 1
+ * bit 6 Pointing device detected
+ * bit 5 Cursor = 0 / Stylus = 1
+ * bit 4 Reserved
+ * bit 3 1 if a button on the pointing device has been pressed
+ * bit 2 P0 (optional)
+ * bit 1 X15
+ * bit 0 X14
+ *
+ * Byte 2
+ * bit 7 Always 0
+ * bits 6-0 = X13 - X7
+ *
+ * Byte 3
+ * bit 7 Always 0
+ * bits 6-0 = X6 - X0
+ *
+ * Byte 4
+ * bit 7 Always 0
+ * bit 6 B3
+ * bit 5 B2
+ * bit 4 B1
+ * bit 3 B0
+ * bit 2 P1 (optional)
+ * bit 1 Y15
+ * bit 0 Y14
+ *
+ * Byte 5
+ * bit 7 Always 0
+ * bits 6-0 = Y13 - Y7
+ *
+ * Byte 6
+ * bit 7 Always 0
+ * bits 6-0 = Y6 - Y0
+ *
+ * Byte 7
+ * bit 7 Always 0
+ * bit 6 Sign of pressure data; or wheel-rel for cursor tool
+ * bit 5 P7; or REL1 for cursor tool
+ * bit 4 P6; or REL0 for cursor tool
+ * bit 3 P5
+ * bit 2 P4
+ * bit 1 P3
+ * bit 0 P2
+ *
+ * byte 8 and 9 are optional and present only
+ * in tilt mode.
+ *
+ * Byte 8
+ * bit 7 Always 0
+ * bit 6 Sign of tilt X
+ * bit 5 Xt6
+ * bit 4 Xt5
+ * bit 3 Xt4
+ * bit 2 Xt3
+ * bit 1 Xt2
+ * bit 0 Xt1
+ *
+ * Byte 9
+ * bit 7 Always 0
+ * bit 6 Sign of tilt Y
+ * bit 5 Yt6
+ * bit 4 Yt5
+ * bit 3 Yt4
+ * bit 2 Yt3
+ * bit 1 Yt2
+ * bit 0 Yt1
+ */
+
+#include <linux/completion.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+MODULE_AUTHOR("Julian Squires <julian@cipht.net>, Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("Wacom protocol 4 serial tablet driver");
+MODULE_LICENSE("GPL");
+
+#define REQUEST_MODEL_AND_ROM_VERSION "~#"
+#define REQUEST_MAX_COORDINATES "~C\r"
+#define REQUEST_CONFIGURATION_STRING "~R\r"
+#define REQUEST_RESET_TO_PROTOCOL_IV "\r#"
+/*
+ * Note: sending "\r$\r" causes at least the Digitizer II to send
+ * packets in ASCII instead of binary. "\r#" seems to undo that.
+ */
+
+#define COMMAND_START_SENDING_PACKETS "ST\r"
+#define COMMAND_STOP_SENDING_PACKETS "SP\r"
+#define COMMAND_MULTI_MODE_INPUT "MU1\r"
+#define COMMAND_ORIGIN_IN_UPPER_LEFT "OC1\r"
+#define COMMAND_ENABLE_ALL_MACRO_BUTTONS "~M0\r"
+#define COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS "~M1\r"
+#define COMMAND_TRANSMIT_AT_MAX_RATE "IT0\r"
+#define COMMAND_DISABLE_INCREMENTAL_MODE "IN0\r"
+#define COMMAND_ENABLE_CONTINUOUS_MODE "SR\r"
+#define COMMAND_ENABLE_PRESSURE_MODE "PH1\r"
+#define COMMAND_Z_FILTER "ZF1\r"
+
+/* Note that this is a protocol 4 packet without tilt information. */
+#define PACKET_LENGTH 7
+#define DATA_SIZE 32
+
+/* flags */
+#define F_COVERS_SCREEN 0x01
+#define F_HAS_STYLUS2 0x02
+#define F_HAS_SCROLLWHEEL 0x04
+
+/* device IDs */
+#define STYLUS_DEVICE_ID 0x02
+#define CURSOR_DEVICE_ID 0x06
+#define ERASER_DEVICE_ID 0x0A
+
+enum { STYLUS = 1, ERASER, CURSOR };
+
+static const struct {
+ int device_id;
+ int input_id;
+} tools[] = {
+ { 0, 0 },
+ { STYLUS_DEVICE_ID, BTN_TOOL_PEN },
+ { ERASER_DEVICE_ID, BTN_TOOL_RUBBER },
+ { CURSOR_DEVICE_ID, BTN_TOOL_MOUSE },
+};
+
+struct wacom {
+ struct input_dev *dev;
+ struct completion cmd_done;
+ int result;
+ u8 expect;
+ u8 eraser_mask;
+ unsigned int extra_z_bits;
+ unsigned int flags;
+ unsigned int res_x, res_y;
+ unsigned int max_x, max_y;
+ unsigned int tool;
+ unsigned int idx;
+ u8 data[DATA_SIZE];
+ char phys[32];
+};
+
+enum {
+ MODEL_CINTIQ = 0x504C, /* PL */
+ MODEL_CINTIQ2 = 0x4454, /* DT */
+ MODEL_DIGITIZER_II = 0x5544, /* UD */
+ MODEL_GRAPHIRE = 0x4554, /* ET */
+ MODEL_PENPARTNER = 0x4354, /* CT */
+};
+
+static void wacom_handle_model_response(struct wacom *wacom)
+{
+ int major_v, minor_v, r = 0;
+ char *p;
+
+ p = strrchr(wacom->data, 'V');
+ if (p)
+ r = sscanf(p + 1, "%u.%u", &major_v, &minor_v);
+ if (r != 2)
+ major_v = minor_v = 0;
+
+ switch (wacom->data[2] << 8 | wacom->data[3]) {
+ case MODEL_CINTIQ: /* UNTESTED */
+ case MODEL_CINTIQ2:
+ if ((wacom->data[2] << 8 | wacom->data[3]) == MODEL_CINTIQ) {
+ wacom->dev->name = "Wacom Cintiq";
+ wacom->dev->id.version = MODEL_CINTIQ;
+ } else {
+ wacom->dev->name = "Wacom Cintiq II";
+ wacom->dev->id.version = MODEL_CINTIQ2;
+ }
+ wacom->res_x = 508;
+ wacom->res_y = 508;
+
+ switch (wacom->data[5] << 8 | wacom->data[6]) {
+ case 0x3731: /* PL-710 */
+ wacom->res_x = 2540;
+ wacom->res_y = 2540;
+ /* fall through */
+ case 0x3535: /* PL-550 */
+ case 0x3830: /* PL-800 */
+ wacom->extra_z_bits = 2;
+ }
+
+ wacom->flags = F_COVERS_SCREEN;
+ break;
+
+ case MODEL_PENPARTNER:
+ wacom->dev->name = "Wacom Penpartner";
+ wacom->dev->id.version = MODEL_PENPARTNER;
+ wacom->res_x = 1000;
+ wacom->res_y = 1000;
+ break;
+
+ case MODEL_GRAPHIRE:
+ wacom->dev->name = "Wacom Graphire";
+ wacom->dev->id.version = MODEL_GRAPHIRE;
+ wacom->res_x = 1016;
+ wacom->res_y = 1016;
+ wacom->max_x = 5103;
+ wacom->max_y = 3711;
+ wacom->extra_z_bits = 2;
+ wacom->eraser_mask = 0x08;
+ wacom->flags = F_HAS_STYLUS2 | F_HAS_SCROLLWHEEL;
+ break;
+
+ case MODEL_DIGITIZER_II:
+ wacom->dev->name = "Wacom Digitizer II";
+ wacom->dev->id.version = MODEL_DIGITIZER_II;
+ if (major_v == 1 && minor_v <= 2)
+ wacom->extra_z_bits = 0; /* UNTESTED */
+ break;
+
+ default:
+ dev_err(&wacom->dev->dev, "Unsupported Wacom model %s\n",
+ wacom->data);
+ wacom->result = -ENODEV;
+ return;
+ }
+
+ dev_info(&wacom->dev->dev, "%s tablet, version %u.%u\n",
+ wacom->dev->name, major_v, minor_v);
+}
+
+static void wacom_handle_configuration_response(struct wacom *wacom)
+{
+ int r, skip;
+
+ dev_dbg(&wacom->dev->dev, "Configuration string: %s\n", wacom->data);
+ r = sscanf(wacom->data, "~R%x,%u,%u,%u,%u", &skip, &skip, &skip,
+ &wacom->res_x, &wacom->res_y);
+ if (r != 5)
+ dev_warn(&wacom->dev->dev, "could not get resolution\n");
+}
+
+static void wacom_handle_coordinates_response(struct wacom *wacom)
+{
+ int r;
+
+ dev_dbg(&wacom->dev->dev, "Coordinates string: %s\n", wacom->data);
+ r = sscanf(wacom->data, "~C%u,%u", &wacom->max_x, &wacom->max_y);
+ if (r != 2)
+ dev_warn(&wacom->dev->dev, "could not get max coordinates\n");
+}
+
+static void wacom_handle_response(struct wacom *wacom)
+{
+ if (wacom->data[0] != '~' || wacom->data[1] != wacom->expect) {
+ dev_err(&wacom->dev->dev,
+ "Wacom got an unexpected response: %s\n", wacom->data);
+ wacom->result = -EIO;
+ } else {
+ wacom->result = 0;
+
+ switch (wacom->data[1]) {
+ case '#':
+ wacom_handle_model_response(wacom);
+ break;
+ case 'R':
+ wacom_handle_configuration_response(wacom);
+ break;
+ case 'C':
+ wacom_handle_coordinates_response(wacom);
+ break;
+ }
+ }
+
+ complete(&wacom->cmd_done);
+}
+
+static void wacom_handle_packet(struct wacom *wacom)
+{
+ u8 in_proximity_p, stylus_p, button;
+ unsigned int tool;
+ int x, y, z;
+
+ in_proximity_p = wacom->data[0] & 0x40;
+ stylus_p = wacom->data[0] & 0x20;
+ button = (wacom->data[3] & 0x78) >> 3;
+ x = (wacom->data[0] & 3) << 14 | wacom->data[1]<<7 | wacom->data[2];
+ y = (wacom->data[3] & 3) << 14 | wacom->data[4]<<7 | wacom->data[5];
+
+ if (in_proximity_p && stylus_p) {
+ z = wacom->data[6] & 0x7f;
+ if (wacom->extra_z_bits >= 1)
+ z = z << 1 | (wacom->data[3] & 0x4) >> 2;
+ if (wacom->extra_z_bits > 1)
+ z = z << 1 | (wacom->data[0] & 0x4) >> 2;
+ z = z ^ (0x40 << wacom->extra_z_bits);
+ } else {
+ z = -1;
+ }
+
+ if (stylus_p)
+ tool = (button & wacom->eraser_mask) ? ERASER : STYLUS;
+ else
+ tool = CURSOR;
+
+ if (tool != wacom->tool && wacom->tool != 0) {
+ input_report_key(wacom->dev, tools[wacom->tool].input_id, 0);
+ input_sync(wacom->dev);
+ }
+ wacom->tool = tool;
+
+ input_report_key(wacom->dev, tools[tool].input_id, in_proximity_p);
+ input_report_abs(wacom->dev, ABS_MISC,
+ in_proximity_p ? tools[tool].device_id : 0);
+ input_report_abs(wacom->dev, ABS_X, x);
+ input_report_abs(wacom->dev, ABS_Y, y);
+ input_report_abs(wacom->dev, ABS_PRESSURE, z);
+ if (stylus_p) {
+ input_report_key(wacom->dev, BTN_TOUCH, button & 1);
+ input_report_key(wacom->dev, BTN_STYLUS, button & 2);
+ input_report_key(wacom->dev, BTN_STYLUS2, button & 4);
+ } else {
+ input_report_key(wacom->dev, BTN_LEFT, button & 1);
+ input_report_key(wacom->dev, BTN_RIGHT, button & 2);
+ input_report_key(wacom->dev, BTN_MIDDLE, button & 4);
+ /* handle relative wheel for non-stylus device */
+ z = (wacom->data[6] & 0x30) >> 4;
+ if (wacom->data[6] & 0x40)
+ z = -z;
+ input_report_rel(wacom->dev, REL_WHEEL, z);
+ }
+ input_sync(wacom->dev);
+}
+
+static void wacom_clear_data_buf(struct wacom *wacom)
+{
+ memset(wacom->data, 0, DATA_SIZE);
+ wacom->idx = 0;
+}
+
+static irqreturn_t wacom_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags)
+{
+ struct wacom *wacom = serio_get_drvdata(serio);
+
+ if (data & 0x80)
+ wacom->idx = 0;
+
+ /*
+ * We're either expecting a carriage return-terminated ASCII
+ * response string, or a seven-byte packet with the MSB set on
+ * the first byte.
+ *
+ * Note however that some tablets (the PenPartner, for
+ * example) don't send a carriage return at the end of a
+ * command. We handle these by waiting for timeout.
+ */
+ if (data == '\r' && !(wacom->data[0] & 0x80)) {
+ wacom_handle_response(wacom);
+ wacom_clear_data_buf(wacom);
+ return IRQ_HANDLED;
+ }
+
+ /* Leave place for 0 termination */
+ if (wacom->idx > (DATA_SIZE - 2)) {
+ dev_dbg(&wacom->dev->dev,
+ "throwing away %d bytes of garbage\n", wacom->idx);
+ wacom_clear_data_buf(wacom);
+ }
+ wacom->data[wacom->idx++] = data;
+
+ if (wacom->idx == PACKET_LENGTH && (wacom->data[0] & 0x80)) {
+ wacom_handle_packet(wacom);
+ wacom_clear_data_buf(wacom);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void wacom_disconnect(struct serio *serio)
+{
+ struct wacom *wacom = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(wacom->dev);
+ kfree(wacom);
+}
+
+static int wacom_send(struct serio *serio, const u8 *command)
+{
+ int err = 0;
+
+ for (; !err && *command; command++)
+ err = serio_write(serio, *command);
+
+ return err;
+}
+
+static int wacom_send_setup_string(struct wacom *wacom, struct serio *serio)
+{
+ const u8 *cmd;
+
+ switch (wacom->dev->id.version) {
+ case MODEL_CINTIQ: /* UNTESTED */
+ cmd = COMMAND_ORIGIN_IN_UPPER_LEFT
+ COMMAND_TRANSMIT_AT_MAX_RATE
+ COMMAND_ENABLE_CONTINUOUS_MODE
+ COMMAND_START_SENDING_PACKETS;
+ break;
+
+ case MODEL_PENPARTNER:
+ cmd = COMMAND_ENABLE_PRESSURE_MODE
+ COMMAND_START_SENDING_PACKETS;
+ break;
+
+ default:
+ cmd = COMMAND_MULTI_MODE_INPUT
+ COMMAND_ORIGIN_IN_UPPER_LEFT
+ COMMAND_ENABLE_ALL_MACRO_BUTTONS
+ COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS
+ COMMAND_TRANSMIT_AT_MAX_RATE
+ COMMAND_DISABLE_INCREMENTAL_MODE
+ COMMAND_ENABLE_CONTINUOUS_MODE
+ COMMAND_Z_FILTER
+ COMMAND_START_SENDING_PACKETS;
+ break;
+ }
+
+ return wacom_send(serio, cmd);
+}
+
+static int wacom_send_and_wait(struct wacom *wacom, struct serio *serio,
+ const u8 *cmd, const char *desc)
+{
+ int err;
+ unsigned long u;
+
+ wacom->expect = cmd[1];
+ init_completion(&wacom->cmd_done);
+
+ err = wacom_send(serio, cmd);
+ if (err)
+ return err;
+
+ u = wait_for_completion_timeout(&wacom->cmd_done, HZ);
+ if (u == 0) {
+ /* Timeout, process what we've received. */
+ wacom_handle_response(wacom);
+ }
+
+ wacom->expect = 0;
+ return wacom->result;
+}
+
+static int wacom_setup(struct wacom *wacom, struct serio *serio)
+{
+ int err;
+
+ /* Note that setting the link speed is the job of inputattach.
+ * We assume that reset negotiation has already happened,
+ * here. */
+ err = wacom_send_and_wait(wacom, serio, REQUEST_MODEL_AND_ROM_VERSION,
+ "model and version");
+ if (err)
+ return err;
+
+ if (!(wacom->res_x && wacom->res_y)) {
+ err = wacom_send_and_wait(wacom, serio,
+ REQUEST_CONFIGURATION_STRING,
+ "configuration string");
+ if (err)
+ return err;
+ }
+
+ if (!(wacom->max_x && wacom->max_y)) {
+ err = wacom_send_and_wait(wacom, serio,
+ REQUEST_MAX_COORDINATES,
+ "coordinates string");
+ if (err)
+ return err;
+ }
+
+ return wacom_send_setup_string(wacom, serio);
+}
+
+static int wacom_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct wacom *wacom;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!wacom || !input_dev)
+ goto free_device;
+
+ wacom->dev = input_dev;
+ wacom->extra_z_bits = 1;
+ wacom->eraser_mask = 0x04;
+ wacom->tool = wacom->idx = 0;
+ snprintf(wacom->phys, sizeof(wacom->phys), "%s/input0", serio->phys);
+ input_dev->phys = wacom->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_WACOM_IV;
+ input_dev->id.product = serio->id.extra;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] =
+ BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL);
+ set_bit(ABS_MISC, input_dev->absbit);
+ set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
+ set_bit(BTN_TOUCH, input_dev->keybit);
+ set_bit(BTN_STYLUS, input_dev->keybit);
+ set_bit(BTN_LEFT, input_dev->keybit);
+ set_bit(BTN_RIGHT, input_dev->keybit);
+ set_bit(BTN_MIDDLE, input_dev->keybit);
+
+ serio_set_drvdata(serio, wacom);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto free_device;
+
+ err = wacom_setup(wacom, serio);
+ if (err)
+ goto close_serio;
+
+ set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+ if (!(wacom->flags & F_COVERS_SCREEN))
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+ if (wacom->flags & F_HAS_STYLUS2)
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+
+ if (wacom->flags & F_HAS_SCROLLWHEEL)
+ __set_bit(REL_WHEEL, input_dev->relbit);
+
+ input_abs_set_res(wacom->dev, ABS_X, wacom->res_x);
+ input_abs_set_res(wacom->dev, ABS_Y, wacom->res_y);
+ input_set_abs_params(wacom->dev, ABS_X, 0, wacom->max_x, 0, 0);
+ input_set_abs_params(wacom->dev, ABS_Y, 0, wacom->max_y, 0, 0);
+ input_set_abs_params(wacom->dev, ABS_PRESSURE, -1,
+ (1 << (7 + wacom->extra_z_bits)) - 1, 0, 0);
+
+ err = input_register_device(wacom->dev);
+ if (err)
+ goto close_serio;
+
+ return 0;
+
+close_serio:
+ serio_close(serio);
+free_device:
+ serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(wacom);
+ return err;
+}
+
+static struct serio_device_id wacom_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_WACOM_IV,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, wacom_serio_ids);
+
+static struct serio_driver wacom_drv = {
+ .driver = {
+ .name = "wacom_serial4",
+ },
+ .description = "Wacom protocol 4 serial tablet driver",
+ .id_table = wacom_serio_ids,
+ .interrupt = wacom_interrupt,
+ .connect = wacom_connect,
+ .disconnect = wacom_disconnect,
+};
+
+module_serio_driver(wacom_drv);
To compile this driver as a module, choose M here: the
module will be called jornada720_ts.
+config TOUCHSCREEN_IPAQ_MICRO
+ tristate "HP iPAQ Atmel Micro ASIC touchscreen"
+ depends on MFD_IPAQ_MICRO
+ help
+ Say Y here to enable support for the touchscreen attached to
+ the Atmel Micro peripheral controller on iPAQ h3100/h3600/h3700
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ipaq-micro-ts.
+
config TOUCHSCREEN_HTCPEN
tristate "HTC Shift X9500 touchscreen"
depends on ISA
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_HP7XX) += jornada720_ts.o
+obj-$(CONFIG_TOUCHSCREEN_IPAQ_MICRO) += ipaq-micro-ts.o
obj-$(CONFIG_TOUCHSCREEN_HTCPEN) += htcpen.o
obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o
pdata = dev_get_platdata(&spi->dev);
if (!pdata) {
pdata = ads7846_probe_dt(&spi->dev);
- if (IS_ERR(pdata))
- return PTR_ERR(pdata);
+ if (IS_ERR(pdata)) {
+ err = PTR_ERR(pdata);
+ goto err_free_mem;
+ }
}
ts->model = pdata->model ? : 7846;
* Atmel maXTouch Touchscreen driver
*
* Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Copyright (C) 2011-2014 Atmel Corporation
* Copyright (C) 2012 Google, Inc.
*
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
#include <linux/i2c/atmel_mxt_ts.h>
#include <linux/input/mt.h>
#include <linux/interrupt.h>
+#include <linux/of.h>
#include <linux/slab.h>
/* Version */
#define MXT_VER_21 21
#define MXT_VER_22 22
-/* Firmware */
+/* Firmware files */
#define MXT_FW_NAME "maxtouch.fw"
+#define MXT_CFG_NAME "maxtouch.cfg"
+#define MXT_CFG_MAGIC "OBP_RAW V1"
/* Registers */
#define MXT_INFO 0x00
#define MXT_OBJECT_START 0x07
#define MXT_OBJECT_SIZE 6
+#define MXT_INFO_CHECKSUM_SIZE 3
+#define MXT_MAX_BLOCK_WRITE 256
/* Object types */
#define MXT_DEBUG_DIAGNOSTIC_T37 37
#define MXT_SPT_MESSAGECOUNT_T44 44
#define MXT_SPT_CTECONFIG_T46 46
+/* MXT_GEN_MESSAGE_T5 object */
+#define MXT_RPTID_NOMSG 0xff
+
/* MXT_GEN_COMMAND_T6 field */
#define MXT_COMMAND_RESET 0
#define MXT_COMMAND_BACKUPNV 1
/* Define for T6 status byte */
#define MXT_T6_STATUS_RESET (1 << 7)
+#define MXT_T6_STATUS_OFL (1 << 6)
+#define MXT_T6_STATUS_SIGERR (1 << 5)
+#define MXT_T6_STATUS_CAL (1 << 4)
+#define MXT_T6_STATUS_CFGERR (1 << 3)
+#define MXT_T6_STATUS_COMSERR (1 << 2)
/* MXT_GEN_POWER_T7 field */
-#define MXT_POWER_IDLEACQINT 0
-#define MXT_POWER_ACTVACQINT 1
-#define MXT_POWER_ACTV2IDLETO 2
+struct t7_config {
+ u8 idle;
+ u8 active;
+} __packed;
+
+#define MXT_POWER_CFG_RUN 0
+#define MXT_POWER_CFG_DEEPSLEEP 1
/* MXT_GEN_ACQUIRE_T8 field */
#define MXT_ACQUIRE_CHRGTIME 0
#define MXT_ACQUIRE_ATCHCALSTHR 7
/* MXT_TOUCH_MULTI_T9 field */
-#define MXT_TOUCH_CTRL 0
#define MXT_T9_ORIENT 9
#define MXT_T9_RANGE 18
u8 num_report_ids;
} __packed;
-struct mxt_message {
- u8 reportid;
- u8 message[7];
-};
-
/* Each client has this additional data */
struct mxt_data {
struct i2c_client *client;
unsigned int max_x;
unsigned int max_y;
bool in_bootloader;
+ u16 mem_size;
+ u8 max_reportid;
u32 config_crc;
+ u32 info_crc;
u8 bootloader_addr;
+ u8 *msg_buf;
+ u8 t6_status;
+ bool update_input;
+ u8 last_message_count;
+ u8 num_touchids;
+ struct t7_config t7_cfg;
/* Cached parameters from object table */
+ u16 T5_address;
+ u8 T5_msg_size;
u8 T6_reportid;
u16 T6_address;
+ u16 T7_address;
u8 T9_reportid_min;
u8 T9_reportid_max;
u8 T19_reportid;
+ u16 T44_address;
/* for fw update in bootloader */
struct completion bl_completion;
}
}
-static bool mxt_object_writable(unsigned int type)
-{
- switch (type) {
- case MXT_GEN_COMMAND_T6:
- case MXT_GEN_POWER_T7:
- case MXT_GEN_ACQUIRE_T8:
- case MXT_TOUCH_MULTI_T9:
- case MXT_TOUCH_KEYARRAY_T15:
- case MXT_TOUCH_PROXIMITY_T23:
- case MXT_TOUCH_PROXKEY_T52:
- case MXT_PROCI_GRIPFACE_T20:
- case MXT_PROCG_NOISE_T22:
- case MXT_PROCI_ONETOUCH_T24:
- case MXT_PROCI_TWOTOUCH_T27:
- case MXT_PROCI_GRIP_T40:
- case MXT_PROCI_PALM_T41:
- case MXT_PROCI_TOUCHSUPPRESSION_T42:
- case MXT_PROCI_STYLUS_T47:
- case MXT_PROCG_NOISESUPPRESSION_T48:
- case MXT_SPT_COMMSCONFIG_T18:
- case MXT_SPT_GPIOPWM_T19:
- case MXT_SPT_SELFTEST_T25:
- case MXT_SPT_CTECONFIG_T28:
- case MXT_SPT_DIGITIZER_T43:
- case MXT_SPT_CTECONFIG_T46:
- return true;
- default:
- return false;
- }
-}
-
-static void mxt_dump_message(struct device *dev,
- struct mxt_message *message)
+static void mxt_dump_message(struct mxt_data *data, u8 *message)
{
- dev_dbg(dev, "reportid: %u\tmessage: %*ph\n",
- message->reportid, 7, message->message);
+ dev_dbg(&data->client->dev, "message: %*ph\n",
+ data->T5_msg_size, message);
}
static int mxt_wait_for_completion(struct mxt_data *data,
return ret;
}
-static int mxt_lookup_bootloader_address(struct mxt_data *data)
+static int mxt_lookup_bootloader_address(struct mxt_data *data, bool retry)
{
u8 appmode = data->client->addr;
u8 bootloader;
switch (appmode) {
case 0x4a:
case 0x4b:
+ /* Chips after 1664S use different scheme */
+ if (retry || data->info.family_id >= 0xa2) {
+ bootloader = appmode - 0x24;
+ break;
+ }
+ /* Fall through for normal case */
case 0x4c:
case 0x4d:
case 0x5a:
return 0;
}
+static int mxt_probe_bootloader(struct mxt_data *data, bool retry)
+{
+ struct device *dev = &data->client->dev;
+ int ret;
+ u8 val;
+ bool crc_failure;
+
+ ret = mxt_lookup_bootloader_address(data, retry);
+ if (ret)
+ return ret;
+
+ ret = mxt_bootloader_read(data, &val, 1);
+ if (ret)
+ return ret;
+
+ /* Check app crc fail mode */
+ crc_failure = (val & ~MXT_BOOT_STATUS_MASK) == MXT_APP_CRC_FAIL;
+
+ dev_err(dev, "Detected bootloader, status:%02X%s\n",
+ val, crc_failure ? ", APP_CRC_FAIL" : "");
+
+ return 0;
+}
+
static u8 mxt_get_bootloader_version(struct mxt_data *data, u8 val)
{
struct device *dev = &data->client->dev;
}
}
-static int mxt_check_bootloader(struct mxt_data *data, unsigned int state)
+static int mxt_check_bootloader(struct mxt_data *data, unsigned int state,
+ bool wait)
{
struct device *dev = &data->client->dev;
u8 val;
int ret;
recheck:
- if (state != MXT_WAITING_BOOTLOAD_CMD) {
+ if (wait) {
/*
* In application update mode, the interrupt
* line signals state transitions. We must wait for the
switch (state) {
case MXT_WAITING_BOOTLOAD_CMD:
case MXT_WAITING_FRAME_DATA:
+ case MXT_APP_CRC_FAIL:
val &= ~MXT_BOOT_STATUS_MASK;
break;
case MXT_FRAME_CRC_PASS:
return 0;
}
-static int mxt_unlock_bootloader(struct mxt_data *data)
+static int mxt_send_bootloader_cmd(struct mxt_data *data, bool unlock)
{
int ret;
u8 buf[2];
- buf[0] = MXT_UNLOCK_CMD_LSB;
- buf[1] = MXT_UNLOCK_CMD_MSB;
+ if (unlock) {
+ buf[0] = MXT_UNLOCK_CMD_LSB;
+ buf[1] = MXT_UNLOCK_CMD_MSB;
+ } else {
+ buf[0] = 0x01;
+ buf[1] = 0x01;
+ }
ret = mxt_bootloader_write(data, buf, 2);
if (ret)
return object;
}
- dev_err(&data->client->dev, "Invalid object type T%u\n", type);
+ dev_warn(&data->client->dev, "Invalid object type T%u\n", type);
return NULL;
}
-static int mxt_read_message(struct mxt_data *data,
- struct mxt_message *message)
+static void mxt_proc_t6_messages(struct mxt_data *data, u8 *msg)
{
- struct mxt_object *object;
- u16 reg;
-
- object = mxt_get_object(data, MXT_GEN_MESSAGE_T5);
- if (!object)
- return -EINVAL;
-
- reg = object->start_address;
- return __mxt_read_reg(data->client, reg,
- sizeof(struct mxt_message), message);
-}
+ struct device *dev = &data->client->dev;
+ u8 status = msg[1];
+ u32 crc = msg[2] | (msg[3] << 8) | (msg[4] << 16);
-static int mxt_write_object(struct mxt_data *data,
- u8 type, u8 offset, u8 val)
-{
- struct mxt_object *object;
- u16 reg;
+ complete(&data->crc_completion);
- object = mxt_get_object(data, type);
- if (!object || offset >= mxt_obj_size(object))
- return -EINVAL;
+ if (crc != data->config_crc) {
+ data->config_crc = crc;
+ dev_dbg(dev, "T6 Config Checksum: 0x%06X\n", crc);
+ }
- reg = object->start_address;
- return mxt_write_reg(data->client, reg + offset, val);
+ /* Detect reset */
+ if (status & MXT_T6_STATUS_RESET)
+ complete(&data->reset_completion);
+
+ /* Output debug if status has changed */
+ if (status != data->t6_status)
+ dev_dbg(dev, "T6 Status 0x%02X%s%s%s%s%s%s%s\n",
+ status,
+ status == 0 ? " OK" : "",
+ status & MXT_T6_STATUS_RESET ? " RESET" : "",
+ status & MXT_T6_STATUS_OFL ? " OFL" : "",
+ status & MXT_T6_STATUS_SIGERR ? " SIGERR" : "",
+ status & MXT_T6_STATUS_CAL ? " CAL" : "",
+ status & MXT_T6_STATUS_CFGERR ? " CFGERR" : "",
+ status & MXT_T6_STATUS_COMSERR ? " COMSERR" : "");
+
+ /* Save current status */
+ data->t6_status = status;
}
-static void mxt_input_button(struct mxt_data *data, struct mxt_message *message)
+static void mxt_input_button(struct mxt_data *data, u8 *message)
{
struct input_dev *input = data->input_dev;
const struct mxt_platform_data *pdata = data->pdata;
for (i = 0; i < pdata->t19_num_keys; i++) {
if (pdata->t19_keymap[i] == KEY_RESERVED)
continue;
- button = !(message->message[0] & (1 << i));
+ button = !(message[1] & (1 << i));
input_report_key(input, pdata->t19_keymap[i], button);
}
}
-static void mxt_input_sync(struct input_dev *input_dev)
+static void mxt_input_sync(struct mxt_data *data)
{
- input_mt_report_pointer_emulation(input_dev, false);
- input_sync(input_dev);
+ input_mt_report_pointer_emulation(data->input_dev,
+ data->pdata->t19_num_keys);
+ input_sync(data->input_dev);
}
-static void mxt_input_touchevent(struct mxt_data *data,
- struct mxt_message *message, int id)
+static void mxt_proc_t9_message(struct mxt_data *data, u8 *message)
{
struct device *dev = &data->client->dev;
- u8 status = message->message[0];
struct input_dev *input_dev = data->input_dev;
+ int id;
+ u8 status;
int x;
int y;
int area;
int amplitude;
- x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf);
- y = (message->message[2] << 4) | ((message->message[3] & 0xf));
+ id = message[0] - data->T9_reportid_min;
+ status = message[1];
+ x = (message[2] << 4) | ((message[4] >> 4) & 0xf);
+ y = (message[3] << 4) | ((message[4] & 0xf));
/* Handle 10/12 bit switching */
if (data->max_x < 1024)
if (data->max_y < 1024)
y >>= 2;
- area = message->message[4];
- amplitude = message->message[5];
+ area = message[5];
+ amplitude = message[6];
dev_dbg(dev,
"[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n",
if (status & MXT_T9_RELEASE) {
input_mt_report_slot_state(input_dev,
MT_TOOL_FINGER, 0);
- mxt_input_sync(input_dev);
+ mxt_input_sync(data);
}
/* Touch active */
/* Touch no longer active, close out slot */
input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, 0);
}
+
+ data->update_input = true;
}
-static u16 mxt_extract_T6_csum(const u8 *csum)
+static int mxt_proc_message(struct mxt_data *data, u8 *message)
{
- return csum[0] | (csum[1] << 8) | (csum[2] << 16);
+ u8 report_id = message[0];
+
+ if (report_id == MXT_RPTID_NOMSG)
+ return 0;
+
+ if (report_id == data->T6_reportid) {
+ mxt_proc_t6_messages(data, message);
+ } else if (!data->input_dev) {
+ /*
+ * Do not report events if input device
+ * is not yet registered.
+ */
+ mxt_dump_message(data, message);
+ } else if (report_id >= data->T9_reportid_min
+ && report_id <= data->T9_reportid_max) {
+ mxt_proc_t9_message(data, message);
+ } else if (report_id == data->T19_reportid) {
+ mxt_input_button(data, message);
+ data->update_input = true;
+ } else {
+ mxt_dump_message(data, message);
+ }
+
+ return 1;
}
-static bool mxt_is_T9_message(struct mxt_data *data, struct mxt_message *msg)
+static int mxt_read_and_process_messages(struct mxt_data *data, u8 count)
{
- u8 id = msg->reportid;
- return (id >= data->T9_reportid_min && id <= data->T9_reportid_max);
+ struct device *dev = &data->client->dev;
+ int ret;
+ int i;
+ u8 num_valid = 0;
+
+ /* Safety check for msg_buf */
+ if (count > data->max_reportid)
+ return -EINVAL;
+
+ /* Process remaining messages if necessary */
+ ret = __mxt_read_reg(data->client, data->T5_address,
+ data->T5_msg_size * count, data->msg_buf);
+ if (ret) {
+ dev_err(dev, "Failed to read %u messages (%d)\n", count, ret);
+ return ret;
+ }
+
+ for (i = 0; i < count; i++) {
+ ret = mxt_proc_message(data,
+ data->msg_buf + data->T5_msg_size * i);
+
+ if (ret == 1)
+ num_valid++;
+ }
+
+ /* return number of messages read */
+ return num_valid;
}
-static irqreturn_t mxt_process_messages_until_invalid(struct mxt_data *data)
+static irqreturn_t mxt_process_messages_t44(struct mxt_data *data)
{
- struct mxt_message message;
- const u8 *payload = &message.message[0];
struct device *dev = &data->client->dev;
- u8 reportid;
- bool update_input = false;
- u32 crc;
+ int ret;
+ u8 count, num_left;
+
+ /* Read T44 and T5 together */
+ ret = __mxt_read_reg(data->client, data->T44_address,
+ data->T5_msg_size + 1, data->msg_buf);
+ if (ret) {
+ dev_err(dev, "Failed to read T44 and T5 (%d)\n", ret);
+ return IRQ_NONE;
+ }
+
+ count = data->msg_buf[0];
+
+ if (count == 0) {
+ dev_warn(dev, "Interrupt triggered but zero messages\n");
+ return IRQ_NONE;
+ } else if (count > data->max_reportid) {
+ dev_err(dev, "T44 count %d exceeded max report id\n", count);
+ count = data->max_reportid;
+ }
+
+ /* Process first message */
+ ret = mxt_proc_message(data, data->msg_buf + 1);
+ if (ret < 0) {
+ dev_warn(dev, "Unexpected invalid message\n");
+ return IRQ_NONE;
+ }
+
+ num_left = count - 1;
+
+ /* Process remaining messages if necessary */
+ if (num_left) {
+ ret = mxt_read_and_process_messages(data, num_left);
+ if (ret < 0)
+ goto end;
+ else if (ret != num_left)
+ dev_warn(dev, "Unexpected invalid message\n");
+ }
+
+end:
+ if (data->update_input) {
+ mxt_input_sync(data);
+ data->update_input = false;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int mxt_process_messages_until_invalid(struct mxt_data *data)
+{
+ struct device *dev = &data->client->dev;
+ int count, read;
+ u8 tries = 2;
+ count = data->max_reportid;
+
+ /* Read messages until we force an invalid */
do {
- if (mxt_read_message(data, &message)) {
- dev_err(dev, "Failed to read message\n");
- return IRQ_NONE;
- }
+ read = mxt_read_and_process_messages(data, count);
+ if (read < count)
+ return 0;
+ } while (--tries);
+
+ if (data->update_input) {
+ mxt_input_sync(data);
+ data->update_input = false;
+ }
- reportid = message.reportid;
+ dev_err(dev, "CHG pin isn't cleared\n");
+ return -EBUSY;
+}
- if (reportid == data->T6_reportid) {
- u8 status = payload[0];
+static irqreturn_t mxt_process_messages(struct mxt_data *data)
+{
+ int total_handled, num_handled;
+ u8 count = data->last_message_count;
- crc = mxt_extract_T6_csum(&payload[1]);
- if (crc != data->config_crc) {
- data->config_crc = crc;
- complete(&data->crc_completion);
- }
+ if (count < 1 || count > data->max_reportid)
+ count = 1;
- dev_dbg(dev, "Status: %02x Config Checksum: %06x\n",
- status, data->config_crc);
-
- if (status & MXT_T6_STATUS_RESET)
- complete(&data->reset_completion);
- } else if (mxt_is_T9_message(data, &message)) {
- int id = reportid - data->T9_reportid_min;
- mxt_input_touchevent(data, &message, id);
- update_input = true;
- } else if (message.reportid == data->T19_reportid) {
- mxt_input_button(data, &message);
- update_input = true;
- } else {
- mxt_dump_message(dev, &message);
- }
- } while (reportid != 0xff);
+ /* include final invalid message */
+ total_handled = mxt_read_and_process_messages(data, count + 1);
+ if (total_handled < 0)
+ return IRQ_NONE;
+ /* if there were invalid messages, then we are done */
+ else if (total_handled <= count)
+ goto update_count;
+
+ /* keep reading two msgs until one is invalid or reportid limit */
+ do {
+ num_handled = mxt_read_and_process_messages(data, 2);
+ if (num_handled < 0)
+ return IRQ_NONE;
- if (update_input)
- mxt_input_sync(data->input_dev);
+ total_handled += num_handled;
+
+ if (num_handled < 2)
+ break;
+ } while (total_handled < data->num_touchids);
+
+update_count:
+ data->last_message_count = total_handled;
+
+ if (data->update_input) {
+ mxt_input_sync(data);
+ data->update_input = false;
+ }
return IRQ_HANDLED;
}
return IRQ_HANDLED;
}
- return mxt_process_messages_until_invalid(data);
+ if (!data->object_table)
+ return IRQ_HANDLED;
+
+ if (data->T44_address) {
+ return mxt_process_messages_t44(data);
+ } else {
+ return mxt_process_messages(data);
+ }
}
static int mxt_t6_command(struct mxt_data *data, u16 cmd_offset,
mxt_wait_for_completion(data, &data->crc_completion, MXT_CRC_TIMEOUT);
}
-static int mxt_check_reg_init(struct mxt_data *data)
+static void mxt_calc_crc24(u32 *crc, u8 firstbyte, u8 secondbyte)
+{
+ static const unsigned int crcpoly = 0x80001B;
+ u32 result;
+ u32 data_word;
+
+ data_word = (secondbyte << 8) | firstbyte;
+ result = ((*crc << 1) ^ data_word);
+
+ if (result & 0x1000000)
+ result ^= crcpoly;
+
+ *crc = result;
+}
+
+static u32 mxt_calculate_crc(u8 *base, off_t start_off, off_t end_off)
+{
+ u32 crc = 0;
+ u8 *ptr = base + start_off;
+ u8 *last_val = base + end_off - 1;
+
+ if (end_off < start_off)
+ return -EINVAL;
+
+ while (ptr < last_val) {
+ mxt_calc_crc24(&crc, *ptr, *(ptr + 1));
+ ptr += 2;
+ }
+
+ /* if len is odd, fill the last byte with 0 */
+ if (ptr == last_val)
+ mxt_calc_crc24(&crc, *ptr, 0);
+
+ /* Mask to 24-bit */
+ crc &= 0x00FFFFFF;
+
+ return crc;
+}
+
+/*
+ * mxt_update_cfg - download configuration to chip
+ *
+ * Atmel Raw Config File Format
+ *
+ * The first four lines of the raw config file contain:
+ * 1) Version
+ * 2) Chip ID Information (first 7 bytes of device memory)
+ * 3) Chip Information Block 24-bit CRC Checksum
+ * 4) Chip Configuration 24-bit CRC Checksum
+ *
+ * The rest of the file consists of one line per object instance:
+ * <TYPE> <INSTANCE> <SIZE> <CONTENTS>
+ *
+ * <TYPE> - 2-byte object type as hex
+ * <INSTANCE> - 2-byte object instance number as hex
+ * <SIZE> - 2-byte object size as hex
+ * <CONTENTS> - array of <SIZE> 1-byte hex values
+ */
+static int mxt_update_cfg(struct mxt_data *data, const struct firmware *cfg)
{
- const struct mxt_platform_data *pdata = data->pdata;
- struct mxt_object *object;
struct device *dev = &data->client->dev;
- int index = 0;
- int i, size;
+ struct mxt_info cfg_info;
+ struct mxt_object *object;
int ret;
+ int offset;
+ int data_pos;
+ int byte_offset;
+ int i;
+ int cfg_start_ofs;
+ u32 info_crc, config_crc, calculated_crc;
+ u8 *config_mem;
+ size_t config_mem_size;
+ unsigned int type, instance, size;
+ u8 val;
+ u16 reg;
- if (!pdata->config) {
- dev_dbg(dev, "No cfg data defined, skipping reg init\n");
- return 0;
+ mxt_update_crc(data, MXT_COMMAND_REPORTALL, 1);
+
+ if (strncmp(cfg->data, MXT_CFG_MAGIC, strlen(MXT_CFG_MAGIC))) {
+ dev_err(dev, "Unrecognised config file\n");
+ ret = -EINVAL;
+ goto release;
}
- mxt_update_crc(data, MXT_COMMAND_REPORTALL, 1);
+ data_pos = strlen(MXT_CFG_MAGIC);
+
+ /* Load information block and check */
+ for (i = 0; i < sizeof(struct mxt_info); i++) {
+ ret = sscanf(cfg->data + data_pos, "%hhx%n",
+ (unsigned char *)&cfg_info + i,
+ &offset);
+ if (ret != 1) {
+ dev_err(dev, "Bad format\n");
+ ret = -EINVAL;
+ goto release;
+ }
- if (data->config_crc == pdata->config_crc) {
- dev_info(dev, "Config CRC 0x%06X: OK\n", data->config_crc);
- return 0;
+ data_pos += offset;
+ }
+
+ if (cfg_info.family_id != data->info.family_id) {
+ dev_err(dev, "Family ID mismatch!\n");
+ ret = -EINVAL;
+ goto release;
}
- dev_info(dev, "Config CRC 0x%06X: does not match 0x%06X\n",
- data->config_crc, pdata->config_crc);
+ if (cfg_info.variant_id != data->info.variant_id) {
+ dev_err(dev, "Variant ID mismatch!\n");
+ ret = -EINVAL;
+ goto release;
+ }
- for (i = 0; i < data->info.object_num; i++) {
- object = data->object_table + i;
+ /* Read CRCs */
+ ret = sscanf(cfg->data + data_pos, "%x%n", &info_crc, &offset);
+ if (ret != 1) {
+ dev_err(dev, "Bad format: failed to parse Info CRC\n");
+ ret = -EINVAL;
+ goto release;
+ }
+ data_pos += offset;
+
+ ret = sscanf(cfg->data + data_pos, "%x%n", &config_crc, &offset);
+ if (ret != 1) {
+ dev_err(dev, "Bad format: failed to parse Config CRC\n");
+ ret = -EINVAL;
+ goto release;
+ }
+ data_pos += offset;
+
+ /*
+ * The Info Block CRC is calculated over mxt_info and the object
+ * table. If it does not match then we are trying to load the
+ * configuration from a different chip or firmware version, so
+ * the configuration CRC is invalid anyway.
+ */
+ if (info_crc == data->info_crc) {
+ if (config_crc == 0 || data->config_crc == 0) {
+ dev_info(dev, "CRC zero, attempting to apply config\n");
+ } else if (config_crc == data->config_crc) {
+ dev_dbg(dev, "Config CRC 0x%06X: OK\n",
+ data->config_crc);
+ ret = 0;
+ goto release;
+ } else {
+ dev_info(dev, "Config CRC 0x%06X: does not match file 0x%06X\n",
+ data->config_crc, config_crc);
+ }
+ } else {
+ dev_warn(dev,
+ "Warning: Info CRC error - device=0x%06X file=0x%06X\n",
+ data->info_crc, info_crc);
+ }
+
+ /* Malloc memory to store configuration */
+ cfg_start_ofs = MXT_OBJECT_START +
+ data->info.object_num * sizeof(struct mxt_object) +
+ MXT_INFO_CHECKSUM_SIZE;
+ config_mem_size = data->mem_size - cfg_start_ofs;
+ config_mem = kzalloc(config_mem_size, GFP_KERNEL);
+ if (!config_mem) {
+ dev_err(dev, "Failed to allocate memory\n");
+ ret = -ENOMEM;
+ goto release;
+ }
- if (!mxt_object_writable(object->type))
+ while (data_pos < cfg->size) {
+ /* Read type, instance, length */
+ ret = sscanf(cfg->data + data_pos, "%x %x %x%n",
+ &type, &instance, &size, &offset);
+ if (ret == 0) {
+ /* EOF */
+ break;
+ } else if (ret != 3) {
+ dev_err(dev, "Bad format: failed to parse object\n");
+ ret = -EINVAL;
+ goto release_mem;
+ }
+ data_pos += offset;
+
+ object = mxt_get_object(data, type);
+ if (!object) {
+ /* Skip object */
+ for (i = 0; i < size; i++) {
+ ret = sscanf(cfg->data + data_pos, "%hhx%n",
+ &val,
+ &offset);
+ data_pos += offset;
+ }
continue;
+ }
- size = mxt_obj_size(object) * mxt_obj_instances(object);
- if (index + size > pdata->config_length) {
- dev_err(dev, "Not enough config data!\n");
- return -EINVAL;
+ if (size > mxt_obj_size(object)) {
+ /*
+ * Either we are in fallback mode due to wrong
+ * config or config from a later fw version,
+ * or the file is corrupt or hand-edited.
+ */
+ dev_warn(dev, "Discarding %zu byte(s) in T%u\n",
+ size - mxt_obj_size(object), type);
+ } else if (mxt_obj_size(object) > size) {
+ /*
+ * If firmware is upgraded, new bytes may be added to
+ * end of objects. It is generally forward compatible
+ * to zero these bytes - previous behaviour will be
+ * retained. However this does invalidate the CRC and
+ * will force fallback mode until the configuration is
+ * updated. We warn here but do nothing else - the
+ * malloc has zeroed the entire configuration.
+ */
+ dev_warn(dev, "Zeroing %zu byte(s) in T%d\n",
+ mxt_obj_size(object) - size, type);
}
- ret = __mxt_write_reg(data->client, object->start_address,
- size, &pdata->config[index]);
- if (ret)
- return ret;
- index += size;
+ if (instance >= mxt_obj_instances(object)) {
+ dev_err(dev, "Object instances exceeded!\n");
+ ret = -EINVAL;
+ goto release_mem;
+ }
+
+ reg = object->start_address + mxt_obj_size(object) * instance;
+
+ for (i = 0; i < size; i++) {
+ ret = sscanf(cfg->data + data_pos, "%hhx%n",
+ &val,
+ &offset);
+ if (ret != 1) {
+ dev_err(dev, "Bad format in T%d\n", type);
+ ret = -EINVAL;
+ goto release_mem;
+ }
+ data_pos += offset;
+
+ if (i > mxt_obj_size(object))
+ continue;
+
+ byte_offset = reg + i - cfg_start_ofs;
+
+ if ((byte_offset >= 0)
+ && (byte_offset <= config_mem_size)) {
+ *(config_mem + byte_offset) = val;
+ } else {
+ dev_err(dev, "Bad object: reg:%d, T%d, ofs=%d\n",
+ reg, object->type, byte_offset);
+ ret = -EINVAL;
+ goto release_mem;
+ }
+ }
+ }
+
+ /* Calculate crc of the received configs (not the raw config file) */
+ if (data->T7_address < cfg_start_ofs) {
+ dev_err(dev, "Bad T7 address, T7addr = %x, config offset %x\n",
+ data->T7_address, cfg_start_ofs);
+ ret = 0;
+ goto release_mem;
+ }
+
+ calculated_crc = mxt_calculate_crc(config_mem,
+ data->T7_address - cfg_start_ofs,
+ config_mem_size);
+
+ if (config_crc > 0 && (config_crc != calculated_crc))
+ dev_warn(dev, "Config CRC error, calculated=%06X, file=%06X\n",
+ calculated_crc, config_crc);
+
+ /* Write configuration as blocks */
+ byte_offset = 0;
+ while (byte_offset < config_mem_size) {
+ size = config_mem_size - byte_offset;
+
+ if (size > MXT_MAX_BLOCK_WRITE)
+ size = MXT_MAX_BLOCK_WRITE;
+
+ ret = __mxt_write_reg(data->client,
+ cfg_start_ofs + byte_offset,
+ size, config_mem + byte_offset);
+ if (ret != 0) {
+ dev_err(dev, "Config write error, ret=%d\n", ret);
+ goto release_mem;
+ }
+
+ byte_offset += size;
}
mxt_update_crc(data, MXT_COMMAND_BACKUPNV, MXT_BACKUP_VALUE);
ret = mxt_soft_reset(data);
if (ret)
- return ret;
+ goto release_mem;
dev_info(dev, "Config successfully updated\n");
- return 0;
+release_mem:
+ kfree(config_mem);
+release:
+ release_firmware(cfg);
+ return ret;
}
-static int mxt_make_highchg(struct mxt_data *data)
+static int mxt_acquire_irq(struct mxt_data *data)
{
- struct device *dev = &data->client->dev;
- struct mxt_message message;
- int count = 10;
int error;
- /* Read dummy message to make high CHG pin */
- do {
- error = mxt_read_message(data, &message);
- if (error)
- return error;
- } while (message.reportid != 0xff && --count);
+ enable_irq(data->irq);
- if (!count) {
- dev_err(dev, "CHG pin isn't cleared\n");
- return -EBUSY;
- }
+ error = mxt_process_messages_until_invalid(data);
+ if (error)
+ return error;
return 0;
}
return 0;
}
+static void mxt_free_object_table(struct mxt_data *data)
+{
+ input_unregister_device(data->input_dev);
+ data->input_dev = NULL;
+
+ kfree(data->object_table);
+ data->object_table = NULL;
+ kfree(data->msg_buf);
+ data->msg_buf = NULL;
+ data->T5_address = 0;
+ data->T5_msg_size = 0;
+ data->T6_reportid = 0;
+ data->T7_address = 0;
+ data->T9_reportid_min = 0;
+ data->T9_reportid_max = 0;
+ data->T19_reportid = 0;
+ data->T44_address = 0;
+ data->max_reportid = 0;
+}
+
static int mxt_get_object_table(struct mxt_data *data)
{
struct i2c_client *client = data->client;
size_t table_size;
+ struct mxt_object *object_table;
int error;
int i;
u8 reportid;
+ u16 end_address;
table_size = data->info.object_num * sizeof(struct mxt_object);
+ object_table = kzalloc(table_size, GFP_KERNEL);
+ if (!object_table) {
+ dev_err(&data->client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
error = __mxt_read_reg(client, MXT_OBJECT_START, table_size,
- data->object_table);
- if (error)
+ object_table);
+ if (error) {
+ kfree(object_table);
return error;
+ }
/* Valid Report IDs start counting from 1 */
reportid = 1;
+ data->mem_size = 0;
for (i = 0; i < data->info.object_num; i++) {
- struct mxt_object *object = data->object_table + i;
+ struct mxt_object *object = object_table + i;
u8 min_id, max_id;
le16_to_cpus(&object->start_address);
min_id, max_id);
switch (object->type) {
+ case MXT_GEN_MESSAGE_T5:
+ if (data->info.family_id == 0x80) {
+ /*
+ * On mXT224 read and discard unused CRC byte
+ * otherwise DMA reads are misaligned
+ */
+ data->T5_msg_size = mxt_obj_size(object);
+ } else {
+ /* CRC not enabled, so skip last byte */
+ data->T5_msg_size = mxt_obj_size(object) - 1;
+ }
+ data->T5_address = object->start_address;
case MXT_GEN_COMMAND_T6:
data->T6_reportid = min_id;
data->T6_address = object->start_address;
break;
+ case MXT_GEN_POWER_T7:
+ data->T7_address = object->start_address;
+ break;
case MXT_TOUCH_MULTI_T9:
data->T9_reportid_min = min_id;
data->T9_reportid_max = max_id;
+ data->num_touchids = object->num_report_ids
+ * mxt_obj_instances(object);
+ break;
+ case MXT_SPT_MESSAGECOUNT_T44:
+ data->T44_address = object->start_address;
break;
case MXT_SPT_GPIOPWM_T19:
data->T19_reportid = min_id;
break;
}
+
+ end_address = object->start_address
+ + mxt_obj_size(object) * mxt_obj_instances(object) - 1;
+
+ if (end_address >= data->mem_size)
+ data->mem_size = end_address + 1;
}
- return 0;
-}
+ /* Store maximum reportid */
+ data->max_reportid = reportid;
-static void mxt_free_object_table(struct mxt_data *data)
-{
- kfree(data->object_table);
- data->object_table = NULL;
- data->T6_reportid = 0;
- data->T9_reportid_min = 0;
- data->T9_reportid_max = 0;
- data->T19_reportid = 0;
+ /* If T44 exists, T5 position has to be directly after */
+ if (data->T44_address && (data->T5_address != data->T44_address + 1)) {
+ dev_err(&client->dev, "Invalid T44 position\n");
+ error = -EINVAL;
+ goto free_object_table;
+ }
+
+ data->msg_buf = kcalloc(data->max_reportid,
+ data->T5_msg_size, GFP_KERNEL);
+ if (!data->msg_buf) {
+ dev_err(&client->dev, "Failed to allocate message buffer\n");
+ error = -ENOMEM;
+ goto free_object_table;
+ }
+
+ data->object_table = object_table;
+
+ return 0;
+
+free_object_table:
+ mxt_free_object_table(data);
+ return error;
}
static int mxt_read_t9_resolution(struct mxt_data *data)
return 0;
}
+static int mxt_input_open(struct input_dev *dev);
+static void mxt_input_close(struct input_dev *dev);
+
+static int mxt_initialize_t9_input_device(struct mxt_data *data)
+{
+ struct device *dev = &data->client->dev;
+ const struct mxt_platform_data *pdata = data->pdata;
+ struct input_dev *input_dev;
+ int error;
+ unsigned int num_mt_slots;
+ unsigned int mt_flags = 0;
+ int i;
+
+ error = mxt_read_t9_resolution(data);
+ if (error)
+ dev_warn(dev, "Failed to initialize T9 resolution\n");
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ input_dev->name = "Atmel maXTouch Touchscreen";
+ input_dev->phys = data->phys;
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = dev;
+ input_dev->open = mxt_input_open;
+ input_dev->close = mxt_input_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ if (pdata->t19_num_keys) {
+ __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
+
+ for (i = 0; i < pdata->t19_num_keys; i++)
+ if (pdata->t19_keymap[i] != KEY_RESERVED)
+ input_set_capability(input_dev, EV_KEY,
+ pdata->t19_keymap[i]);
+
+ mt_flags |= INPUT_MT_POINTER;
+
+ input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_MT_POSITION_X,
+ MXT_PIXELS_PER_MM);
+ input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
+ MXT_PIXELS_PER_MM);
+
+ input_dev->name = "Atmel maXTouch Touchpad";
+ }
+
+ /* For single touch */
+ input_set_abs_params(input_dev, ABS_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, 255, 0, 0);
+
+ /* For multi touch */
+ num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
+ error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags);
+ if (error) {
+ dev_err(dev, "Error %d initialising slots\n", error);
+ goto err_free_mem;
+ }
+
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+ 0, MXT_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_PRESSURE,
+ 0, 255, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(dev, "Error %d registering input device\n", error);
+ goto err_free_mem;
+ }
+
+ data->input_dev = input_dev;
+
+ return 0;
+
+err_free_mem:
+ input_free_device(input_dev);
+ return error;
+}
+
+static int mxt_configure_objects(struct mxt_data *data,
+ const struct firmware *cfg);
+
+static void mxt_config_cb(const struct firmware *cfg, void *ctx)
+{
+ mxt_configure_objects(ctx, cfg);
+}
+
static int mxt_initialize(struct mxt_data *data)
{
struct i2c_client *client = data->client;
- struct mxt_info *info = &data->info;
int error;
+ bool alt_bootloader_addr = false;
+ bool retry = false;
+retry_info:
error = mxt_get_info(data);
- if (error)
- return error;
+ if (error) {
+retry_bootloader:
+ error = mxt_probe_bootloader(data, alt_bootloader_addr);
+ if (error) {
+ if (alt_bootloader_addr) {
+ /* Chip is not in appmode or bootloader mode */
+ return error;
+ }
- data->object_table = kcalloc(info->object_num,
- sizeof(struct mxt_object),
- GFP_KERNEL);
- if (!data->object_table) {
- dev_err(&client->dev, "Failed to allocate memory\n");
- return -ENOMEM;
+ dev_info(&client->dev, "Trying alternate bootloader address\n");
+ alt_bootloader_addr = true;
+ goto retry_bootloader;
+ } else {
+ if (retry) {
+ dev_err(&client->dev, "Could not recover from bootloader mode\n");
+ /*
+ * We can reflash from this state, so do not
+ * abort init
+ */
+ data->in_bootloader = true;
+ return 0;
+ }
+
+ /* Attempt to exit bootloader into app mode */
+ mxt_send_bootloader_cmd(data, false);
+ msleep(MXT_FW_RESET_TIME);
+ retry = true;
+ goto retry_info;
+ }
}
/* Get object table information */
error = mxt_get_object_table(data);
if (error) {
dev_err(&client->dev, "Error %d reading object table\n", error);
- goto err_free_object_table;
+ return error;
}
- /* Check register init values */
- error = mxt_check_reg_init(data);
- if (error) {
- dev_err(&client->dev, "Error %d initializing configuration\n",
- error);
+ mxt_acquire_irq(data);
+ if (error)
goto err_free_object_table;
+
+ request_firmware_nowait(THIS_MODULE, true, MXT_CFG_NAME,
+ &data->client->dev, GFP_KERNEL, data,
+ mxt_config_cb);
+
+ return 0;
+
+err_free_object_table:
+ mxt_free_object_table(data);
+ return error;
+}
+
+static int mxt_set_t7_power_cfg(struct mxt_data *data, u8 sleep)
+{
+ struct device *dev = &data->client->dev;
+ int error;
+ struct t7_config *new_config;
+ struct t7_config deepsleep = { .active = 0, .idle = 0 };
+
+ if (sleep == MXT_POWER_CFG_DEEPSLEEP)
+ new_config = &deepsleep;
+ else
+ new_config = &data->t7_cfg;
+
+ error = __mxt_write_reg(data->client, data->T7_address,
+ sizeof(data->t7_cfg), new_config);
+ if (error)
+ return error;
+
+ dev_dbg(dev, "Set T7 ACTV:%d IDLE:%d\n",
+ new_config->active, new_config->idle);
+
+ return 0;
+}
+
+static int mxt_init_t7_power_cfg(struct mxt_data *data)
+{
+ struct device *dev = &data->client->dev;
+ int error;
+ bool retry = false;
+
+recheck:
+ error = __mxt_read_reg(data->client, data->T7_address,
+ sizeof(data->t7_cfg), &data->t7_cfg);
+ if (error)
+ return error;
+
+ if (data->t7_cfg.active == 0 || data->t7_cfg.idle == 0) {
+ if (!retry) {
+ dev_dbg(dev, "T7 cfg zero, resetting\n");
+ mxt_soft_reset(data);
+ retry = true;
+ goto recheck;
+ } else {
+ dev_dbg(dev, "T7 cfg zero after reset, overriding\n");
+ data->t7_cfg.active = 20;
+ data->t7_cfg.idle = 100;
+ return mxt_set_t7_power_cfg(data, MXT_POWER_CFG_RUN);
+ }
}
- error = mxt_read_t9_resolution(data);
+ dev_dbg(dev, "Initialized power cfg: ACTV %d, IDLE %d\n",
+ data->t7_cfg.active, data->t7_cfg.idle);
+ return 0;
+}
+
+static int mxt_configure_objects(struct mxt_data *data,
+ const struct firmware *cfg)
+{
+ struct device *dev = &data->client->dev;
+ struct mxt_info *info = &data->info;
+ int error;
+
+ if (cfg) {
+ error = mxt_update_cfg(data, cfg);
+ if (error)
+ dev_warn(dev, "Error %d updating config\n", error);
+ }
+
+ error = mxt_init_t7_power_cfg(data);
if (error) {
- dev_err(&client->dev, "Failed to initialize T9 resolution\n");
- goto err_free_object_table;
+ dev_err(dev, "Failed to initialize power cfg\n");
+ return error;
}
- dev_info(&client->dev,
+ error = mxt_initialize_t9_input_device(data);
+ if (error)
+ return error;
+
+ dev_info(dev,
"Family: %u Variant: %u Firmware V%u.%u.%02X Objects: %u\n",
info->family_id, info->variant_id, info->version >> 4,
info->version & 0xf, info->build, info->object_num);
return 0;
-
-err_free_object_table:
- mxt_free_object_table(data);
- return error;
}
/* Firmware Version is returned as Major.Minor.Build */
if (ret)
goto release_firmware;
- ret = mxt_lookup_bootloader_address(data);
- if (ret)
- goto release_firmware;
+ if (!data->in_bootloader) {
+ /* Change to the bootloader mode */
+ data->in_bootloader = true;
- /* Change to the bootloader mode */
- data->in_bootloader = true;
+ ret = mxt_t6_command(data, MXT_COMMAND_RESET,
+ MXT_BOOT_VALUE, false);
+ if (ret)
+ goto release_firmware;
- ret = mxt_t6_command(data, MXT_COMMAND_RESET, MXT_BOOT_VALUE, false);
- if (ret)
- goto release_firmware;
+ msleep(MXT_RESET_TIME);
- msleep(MXT_RESET_TIME);
+ /* Do not need to scan since we know family ID */
+ ret = mxt_lookup_bootloader_address(data, 0);
+ if (ret)
+ goto release_firmware;
+ } else {
+ enable_irq(data->irq);
+ }
+ mxt_free_object_table(data);
reinit_completion(&data->bl_completion);
- ret = mxt_check_bootloader(data, MXT_WAITING_BOOTLOAD_CMD);
- if (ret)
- goto disable_irq;
+ ret = mxt_check_bootloader(data, MXT_WAITING_BOOTLOAD_CMD, false);
+ if (ret) {
+ /* Bootloader may still be unlocked from previous attempt */
+ ret = mxt_check_bootloader(data, MXT_WAITING_FRAME_DATA, false);
+ if (ret)
+ goto disable_irq;
+ } else {
+ dev_info(dev, "Unlocking bootloader\n");
- /* Unlock bootloader */
- mxt_unlock_bootloader(data);
+ /* Unlock bootloader */
+ ret = mxt_send_bootloader_cmd(data, true);
+ if (ret)
+ goto disable_irq;
+ }
while (pos < fw->size) {
- ret = mxt_check_bootloader(data, MXT_WAITING_FRAME_DATA);
+ ret = mxt_check_bootloader(data, MXT_WAITING_FRAME_DATA, true);
if (ret)
goto disable_irq;
if (ret)
goto disable_irq;
- ret = mxt_check_bootloader(data, MXT_FRAME_CRC_PASS);
+ ret = mxt_check_bootloader(data, MXT_FRAME_CRC_PASS, true);
if (ret) {
retry++;
} else {
dev_info(dev, "The firmware update succeeded\n");
- mxt_free_object_table(data);
-
- mxt_initialize(data);
-
- enable_irq(data->irq);
-
- error = mxt_make_highchg(data);
+ error = mxt_initialize(data);
if (error)
return error;
}
static void mxt_start(struct mxt_data *data)
{
- /* Touch enable */
- mxt_write_object(data,
- MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83);
+ mxt_set_t7_power_cfg(data, MXT_POWER_CFG_RUN);
+
+ /* Recalibrate since chip has been in deep sleep */
+ mxt_t6_command(data, MXT_COMMAND_CALIBRATE, 1, false);
}
static void mxt_stop(struct mxt_data *data)
{
- /* Touch disable */
- mxt_write_object(data,
- MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0);
+ mxt_set_t7_power_cfg(data, MXT_POWER_CFG_DEEPSLEEP);
}
static int mxt_input_open(struct input_dev *dev)
mxt_stop(data);
}
-static int mxt_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+#ifdef CONFIG_OF
+static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
+{
+ struct mxt_platform_data *pdata;
+ u32 *keymap;
+ u32 keycode;
+ int proplen, i, ret;
+
+ if (!client->dev.of_node)
+ return ERR_PTR(-ENODEV);
+
+ pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ if (of_find_property(client->dev.of_node, "linux,gpio-keymap",
+ &proplen)) {
+ pdata->t19_num_keys = proplen / sizeof(u32);
+
+ keymap = devm_kzalloc(&client->dev,
+ pdata->t19_num_keys * sizeof(keymap[0]),
+ GFP_KERNEL);
+ if (!keymap)
+ return ERR_PTR(-ENOMEM);
+
+ for (i = 0; i < pdata->t19_num_keys; i++) {
+ ret = of_property_read_u32_index(client->dev.of_node,
+ "linux,gpio-keymap", i, &keycode);
+ if (ret)
+ keycode = KEY_RESERVED;
+
+ keymap[i] = keycode;
+ }
+
+ pdata->t19_keymap = keymap;
+ }
+
+ return pdata;
+}
+#else
+static struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
+{
+ dev_dbg(&client->dev, "No platform data specified\n");
+ return ERR_PTR(-EINVAL);
+}
+#endif
+
+static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
- const struct mxt_platform_data *pdata = dev_get_platdata(&client->dev);
struct mxt_data *data;
- struct input_dev *input_dev;
+ const struct mxt_platform_data *pdata;
int error;
- unsigned int num_mt_slots;
- unsigned int mt_flags = 0;
- int i;
- if (!pdata)
- return -EINVAL;
+ pdata = dev_get_platdata(&client->dev);
+ if (!pdata) {
+ pdata = mxt_parse_dt(client);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+ }
data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!data || !input_dev) {
+ if (!data) {
dev_err(&client->dev, "Failed to allocate memory\n");
- error = -ENOMEM;
- goto err_free_mem;
+ return -ENOMEM;
}
- input_dev->name = "Atmel maXTouch Touchscreen";
snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0",
client->adapter->nr, client->addr);
- input_dev->phys = data->phys;
-
- input_dev->id.bustype = BUS_I2C;
- input_dev->dev.parent = &client->dev;
- input_dev->open = mxt_input_open;
- input_dev->close = mxt_input_close;
-
data->client = client;
- data->input_dev = input_dev;
data->pdata = pdata;
data->irq = client->irq;
+ i2c_set_clientdata(client, data);
init_completion(&data->bl_completion);
init_completion(&data->reset_completion);
init_completion(&data->crc_completion);
- error = mxt_initialize(data);
- if (error)
- goto err_free_mem;
-
- __set_bit(EV_ABS, input_dev->evbit);
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(BTN_TOUCH, input_dev->keybit);
-
- if (pdata->t19_num_keys) {
- __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit);
-
- for (i = 0; i < pdata->t19_num_keys; i++)
- if (pdata->t19_keymap[i] != KEY_RESERVED)
- input_set_capability(input_dev, EV_KEY,
- pdata->t19_keymap[i]);
-
- mt_flags |= INPUT_MT_POINTER;
-
- input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_MT_POSITION_X,
- MXT_PIXELS_PER_MM);
- input_abs_set_res(input_dev, ABS_MT_POSITION_Y,
- MXT_PIXELS_PER_MM);
-
- input_dev->name = "Atmel maXTouch Touchpad";
- }
-
- /* For single touch */
- input_set_abs_params(input_dev, ABS_X,
- 0, data->max_x, 0, 0);
- input_set_abs_params(input_dev, ABS_Y,
- 0, data->max_y, 0, 0);
- input_set_abs_params(input_dev, ABS_PRESSURE,
- 0, 255, 0, 0);
-
- /* For multi touch */
- num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1;
- error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags);
- if (error)
- goto err_free_object;
- input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
- 0, MXT_MAX_AREA, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_X,
- 0, data->max_x, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
- 0, data->max_y, 0, 0);
- input_set_abs_params(input_dev, ABS_MT_PRESSURE,
- 0, 255, 0, 0);
-
- input_set_drvdata(input_dev, data);
- i2c_set_clientdata(client, data);
-
error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
pdata->irqflags | IRQF_ONESHOT,
client->name, data);
if (error) {
dev_err(&client->dev, "Failed to register interrupt\n");
- goto err_free_object;
+ goto err_free_mem;
}
- error = mxt_make_highchg(data);
- if (error)
- goto err_free_irq;
+ disable_irq(client->irq);
- error = input_register_device(input_dev);
- if (error) {
- dev_err(&client->dev, "Error %d registering input device\n",
- error);
+ error = mxt_initialize(data);
+ if (error)
goto err_free_irq;
- }
error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
if (error) {
dev_err(&client->dev, "Failure %d creating sysfs group\n",
error);
- goto err_unregister_device;
+ goto err_free_object;
}
return 0;
-err_unregister_device:
- input_unregister_device(input_dev);
- input_dev = NULL;
+err_free_object:
+ mxt_free_object_table(data);
err_free_irq:
free_irq(client->irq, data);
-err_free_object:
- kfree(data->object_table);
err_free_mem:
- input_free_device(input_dev);
kfree(data);
return error;
}
sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
free_irq(data->irq, data);
input_unregister_device(data->input_dev);
- kfree(data->object_table);
+ mxt_free_object_table(data);
kfree(data);
return 0;
struct mxt_data *data = i2c_get_clientdata(client);
struct input_dev *input_dev = data->input_dev;
- mxt_soft_reset(data);
-
mutex_lock(&input_dev->mutex);
if (input_dev->users)
static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume);
+static const struct of_device_id mxt_of_match[] = {
+ { .compatible = "atmel,maxtouch", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mxt_of_match);
+
static const struct i2c_device_id mxt_id[] = {
{ "qt602240_ts", 0 },
{ "atmel_mxt_ts", 0 },
.driver = {
.name = "atmel_mxt_ts",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(mxt_of_match),
.pm = &mxt_pm_ops,
},
.probe = mxt_probe,
static void
edt_ft5x06_ts_teardown_debugfs(struct edt_ft5x06_ts_data *tsdata)
{
- if (tsdata->debug_dir)
- debugfs_remove_recursive(tsdata->debug_dir);
+ debugfs_remove_recursive(tsdata->debug_dir);
kfree(tsdata->raw_buffer);
}
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * h3600 atmel micro companion support, touchscreen subdevice
+ * Author : Alessandro Gardich <gremlin@gremlin.it>
+ * Author : Dmitry Artamonow <mad_soft@inbox.ru>
+ * Author : Linus Walleij <linus.walleij@linaro.org>
+ *
+ */
+
+#include <asm/byteorder.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mfd/ipaq-micro.h>
+
+struct touchscreen_data {
+ struct input_dev *input;
+ struct ipaq_micro *micro;
+};
+
+static void micro_ts_receive(void *data, int len, unsigned char *msg)
+{
+ struct touchscreen_data *ts = data;
+
+ if (len == 4) {
+ input_report_abs(ts->input, ABS_X,
+ be16_to_cpup((__be16 *) &msg[2]));
+ input_report_abs(ts->input, ABS_Y,
+ be16_to_cpup((__be16 *) &msg[0]));
+ input_report_key(ts->input, BTN_TOUCH, 1);
+ input_sync(ts->input);
+ } else if (len == 0) {
+ input_report_abs(ts->input, ABS_X, 0);
+ input_report_abs(ts->input, ABS_Y, 0);
+ input_report_key(ts->input, BTN_TOUCH, 0);
+ input_sync(ts->input);
+ }
+}
+
+static void micro_ts_toggle_receive(struct touchscreen_data *ts, bool enable)
+{
+ struct ipaq_micro *micro = ts->micro;
+
+ spin_lock_irq(µ->lock);
+
+ if (enable) {
+ micro->ts = micro_ts_receive;
+ micro->ts_data = ts;
+ } else {
+ micro->ts = NULL;
+ micro->ts_data = NULL;
+ }
+
+ spin_unlock_irq(&ts->micro->lock);
+}
+
+static int micro_ts_open(struct input_dev *input)
+{
+ struct touchscreen_data *ts = input_get_drvdata(input);
+
+ micro_ts_toggle_receive(ts, true);
+
+ return 0;
+}
+
+static void micro_ts_close(struct input_dev *input)
+{
+ struct touchscreen_data *ts = input_get_drvdata(input);
+
+ micro_ts_toggle_receive(ts, false);
+}
+
+static int micro_ts_probe(struct platform_device *pdev)
+{
+ struct ipaq_micro *micro = dev_get_drvdata(pdev->dev.parent);
+ struct touchscreen_data *ts;
+ int error;
+
+ ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ ts->micro = micro;
+
+ ts->input = devm_input_allocate_device(&pdev->dev);
+ if (!ts->input) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ ts->input->name = "ipaq micro ts";
+ ts->input->open = micro_ts_open;
+ ts->input->close = micro_ts_close;
+
+ input_set_drvdata(ts->input, ts);
+
+ input_set_capability(ts->input, EV_KEY, BTN_TOUCH);
+ input_set_capability(ts->input, EV_ABS, ABS_X);
+ input_set_capability(ts->input, EV_ABS, ABS_Y);
+ input_set_abs_params(ts->input, ABS_X, 0, 1023, 0, 0);
+ input_set_abs_params(ts->input, ABS_Y, 0, 1023, 0, 0);
+
+ error = input_register_device(ts->input);
+ if (error) {
+ dev_err(&pdev->dev, "error registering touch input\n");
+ return error;
+ }
+
+ platform_set_drvdata(pdev, ts);
+
+ dev_info(&pdev->dev, "iPAQ micro touchscreen\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int micro_ts_suspend(struct device *dev)
+{
+ struct touchscreen_data *ts = dev_get_drvdata(dev);
+
+ micro_ts_toggle_receive(ts, false);
+
+ return 0;
+}
+
+static int micro_ts_resume(struct device *dev)
+{
+ struct touchscreen_data *ts = dev_get_drvdata(dev);
+ struct input_dev *input = ts->input;
+
+ mutex_lock(&input->mutex);
+
+ if (input->users)
+ micro_ts_toggle_receive(ts, true);
+
+ mutex_unlock(&input->mutex);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops micro_ts_dev_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(micro_ts_suspend, micro_ts_resume)
+};
+
+static struct platform_driver micro_ts_device_driver = {
+ .driver = {
+ .name = "ipaq-micro-ts",
+ .pm = µ_ts_dev_pm_ops,
+ },
+ .probe = micro_ts_probe,
+};
+module_platform_driver(micro_ts_device_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("driver for iPAQ Atmel micro touchscreen");
+MODULE_ALIAS("platform:ipaq-micro-ts");
static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
{
+ /* 3 low word X samples */
+ jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
- /* 3 low word X samples */
- jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
- jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
- jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
+ /* 3 low word Y samples */
+ jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
- /* 3 low word Y samples */
- jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
- jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
- jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
+ /* combined x samples bits */
+ jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
- /* combined x samples bits */
- jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
-
- /* combined y samples bits */
- jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
+ /* combined y samples bits */
+ jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
}
static int jornada720_ts_average(int coords[4])
struct input_dev *input_dev;
int error;
- jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
- input_dev = input_allocate_device();
+ jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
+ if (!jornada_ts)
+ return -ENOMEM;
- if (!jornada_ts || !input_dev) {
- error = -ENOMEM;
- goto fail1;
- }
+ input_dev = devm_input_allocate_device(&pdev->dev);
+ if (!input_dev)
+ return -ENOMEM;
platform_set_drvdata(pdev, jornada_ts);
input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
- error = request_irq(IRQ_GPIO9,
- jornada720_ts_interrupt,
- IRQF_TRIGGER_RISING,
- "HP7XX Touchscreen driver", pdev);
+ error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
+ jornada720_ts_interrupt,
+ IRQF_TRIGGER_RISING,
+ "HP7XX Touchscreen driver", pdev);
if (error) {
- printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
- goto fail1;
+ dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
+ return error;
}
error = input_register_device(jornada_ts->dev);
if (error)
- goto fail2;
-
- return 0;
-
- fail2:
- free_irq(IRQ_GPIO9, pdev);
- fail1:
- input_free_device(input_dev);
- kfree(jornada_ts);
- return error;
-}
-
-static int jornada720_ts_remove(struct platform_device *pdev)
-{
- struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
-
- free_irq(IRQ_GPIO9, pdev);
- input_unregister_device(jornada_ts->dev);
- kfree(jornada_ts);
+ return error;
return 0;
}
static struct platform_driver jornada720_ts_driver = {
.probe = jornada720_ts_probe,
- .remove = jornada720_ts_remove,
.driver = {
.name = "jornada_ts",
.owner = THIS_MODULE,
return 0;
}
-#ifdef CONFIG_PM
-static int mcs5000_ts_suspend(struct device *dev)
+static int __maybe_unused mcs5000_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
return 0;
}
-static int mcs5000_ts_resume(struct device *dev)
+static int __maybe_unused mcs5000_ts_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct mcs5000_ts_data *data = i2c_get_clientdata(client);
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(mcs5000_ts_pm, mcs5000_ts_suspend, mcs5000_ts_resume);
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/input.h>
+#include <linux/input/mt.h>
#include <linux/input/pixcir_ts.h>
#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_device.h>
+
+#define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */
struct pixcir_i2c_ts_data {
struct i2c_client *client;
struct input_dev *input;
- const struct pixcir_ts_platform_data *chip;
+ const struct pixcir_ts_platform_data *pdata;
bool running;
+ int max_fingers; /* Max fingers supported in this instance */
+};
+
+struct pixcir_touch {
+ int x;
+ int y;
+ int id;
+};
+
+struct pixcir_report_data {
+ int num_touches;
+ struct pixcir_touch touches[PIXCIR_MAX_SLOTS];
};
-static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
+static void pixcir_ts_parse(struct pixcir_i2c_ts_data *tsdata,
+ struct pixcir_report_data *report)
{
- struct pixcir_i2c_ts_data *tsdata = data;
- u8 rdbuf[10], wrbuf[1] = { 0 };
+ u8 rdbuf[2 + PIXCIR_MAX_SLOTS * 5];
+ u8 wrbuf[1] = { 0 };
+ u8 *bufptr;
u8 touch;
- int ret;
+ int ret, i;
+ int readsize;
+ const struct pixcir_i2c_chip_data *chip = &tsdata->pdata->chip;
+
+ memset(report, 0, sizeof(struct pixcir_report_data));
+
+ i = chip->has_hw_ids ? 1 : 0;
+ readsize = 2 + tsdata->max_fingers * (4 + i);
+ if (readsize > sizeof(rdbuf))
+ readsize = sizeof(rdbuf);
ret = i2c_master_send(tsdata->client, wrbuf, sizeof(wrbuf));
if (ret != sizeof(wrbuf)) {
return;
}
- ret = i2c_master_recv(tsdata->client, rdbuf, sizeof(rdbuf));
+ ret = i2c_master_recv(tsdata->client, rdbuf, readsize);
if (ret != sizeof(rdbuf)) {
dev_err(&tsdata->client->dev,
"%s: i2c_master_recv failed(), ret=%d\n",
return;
}
- touch = rdbuf[0];
- if (touch) {
- u16 posx1 = (rdbuf[3] << 8) | rdbuf[2];
- u16 posy1 = (rdbuf[5] << 8) | rdbuf[4];
- u16 posx2 = (rdbuf[7] << 8) | rdbuf[6];
- u16 posy2 = (rdbuf[9] << 8) | rdbuf[8];
-
- input_report_key(tsdata->input, BTN_TOUCH, 1);
- input_report_abs(tsdata->input, ABS_X, posx1);
- input_report_abs(tsdata->input, ABS_Y, posy1);
-
- input_report_abs(tsdata->input, ABS_MT_POSITION_X, posx1);
- input_report_abs(tsdata->input, ABS_MT_POSITION_Y, posy1);
- input_mt_sync(tsdata->input);
-
- if (touch == 2) {
- input_report_abs(tsdata->input,
- ABS_MT_POSITION_X, posx2);
- input_report_abs(tsdata->input,
- ABS_MT_POSITION_Y, posy2);
- input_mt_sync(tsdata->input);
+ touch = rdbuf[0] & 0x7;
+ if (touch > tsdata->max_fingers)
+ touch = tsdata->max_fingers;
+
+ report->num_touches = touch;
+ bufptr = &rdbuf[2];
+
+ for (i = 0; i < touch; i++) {
+ report->touches[i].x = (bufptr[1] << 8) | bufptr[0];
+ report->touches[i].y = (bufptr[3] << 8) | bufptr[2];
+
+ if (chip->has_hw_ids) {
+ report->touches[i].id = bufptr[4];
+ bufptr = bufptr + 5;
+ } else {
+ bufptr = bufptr + 4;
+ }
+ }
+}
+
+static void pixcir_ts_report(struct pixcir_i2c_ts_data *ts,
+ struct pixcir_report_data *report)
+{
+ struct input_mt_pos pos[PIXCIR_MAX_SLOTS];
+ int slots[PIXCIR_MAX_SLOTS];
+ struct pixcir_touch *touch;
+ int n, i, slot;
+ struct device *dev = &ts->client->dev;
+ const struct pixcir_i2c_chip_data *chip = &ts->pdata->chip;
+
+ n = report->num_touches;
+ if (n > PIXCIR_MAX_SLOTS)
+ n = PIXCIR_MAX_SLOTS;
+
+ if (!chip->has_hw_ids) {
+ for (i = 0; i < n; i++) {
+ touch = &report->touches[i];
+ pos[i].x = touch->x;
+ pos[i].y = touch->y;
+ }
+
+ input_mt_assign_slots(ts->input, slots, pos, n);
+ }
+
+ for (i = 0; i < n; i++) {
+ touch = &report->touches[i];
+
+ if (chip->has_hw_ids) {
+ slot = input_mt_get_slot_by_key(ts->input, touch->id);
+ if (slot < 0) {
+ dev_dbg(dev, "no free slot for id 0x%x\n",
+ touch->id);
+ continue;
+ }
+ } else {
+ slot = slots[i];
}
- } else {
- input_report_key(tsdata->input, BTN_TOUCH, 0);
+
+ input_mt_slot(ts->input, slot);
+ input_mt_report_slot_state(ts->input,
+ MT_TOOL_FINGER, true);
+
+ input_event(ts->input, EV_ABS, ABS_MT_POSITION_X, touch->x);
+ input_event(ts->input, EV_ABS, ABS_MT_POSITION_Y, touch->y);
+
+ dev_dbg(dev, "%d: slot %d, x %d, y %d\n",
+ i, slot, touch->x, touch->y);
}
- input_sync(tsdata->input);
+ input_mt_sync_frame(ts->input);
+ input_sync(ts->input);
}
static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
{
struct pixcir_i2c_ts_data *tsdata = dev_id;
- const struct pixcir_ts_platform_data *pdata = tsdata->chip;
+ const struct pixcir_ts_platform_data *pdata = tsdata->pdata;
+ struct pixcir_report_data report;
while (tsdata->running) {
- pixcir_ts_poscheck(tsdata);
-
- if (gpio_get_value(pdata->gpio_attb))
+ /* parse packet */
+ pixcir_ts_parse(tsdata, &report);
+
+ /* report it */
+ pixcir_ts_report(tsdata, &report);
+
+ if (gpio_get_value(pdata->gpio_attb)) {
+ if (report.num_touches) {
+ /*
+ * Last report with no finger up?
+ * Do it now then.
+ */
+ input_mt_sync_frame(tsdata->input);
+ input_sync(tsdata->input);
+ }
break;
+ }
msleep(20);
}
static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops,
pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume);
+#ifdef CONFIG_OF
+static const struct of_device_id pixcir_of_match[];
+
+static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
+{
+ struct pixcir_ts_platform_data *pdata;
+ struct device_node *np = dev->of_node;
+ const struct of_device_id *match;
+
+ match = of_match_device(of_match_ptr(pixcir_of_match), dev);
+ if (!match)
+ return ERR_PTR(-EINVAL);
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ pdata->chip = *(const struct pixcir_i2c_chip_data *)match->data;
+
+ pdata->gpio_attb = of_get_named_gpio(np, "attb-gpio", 0);
+ /* gpio_attb validity is checked in probe */
+
+ if (of_property_read_u32(np, "touchscreen-size-x", &pdata->x_max)) {
+ dev_err(dev, "Failed to get touchscreen-size-x property\n");
+ return ERR_PTR(-EINVAL);
+ }
+ pdata->x_max -= 1;
+
+ if (of_property_read_u32(np, "touchscreen-size-y", &pdata->y_max)) {
+ dev_err(dev, "Failed to get touchscreen-size-y property\n");
+ return ERR_PTR(-EINVAL);
+ }
+ pdata->y_max -= 1;
+
+ dev_dbg(dev, "%s: x %d, y %d, gpio %d\n", __func__,
+ pdata->x_max + 1, pdata->y_max + 1, pdata->gpio_attb);
+
+ return pdata;
+}
+#else
+static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev)
+{
+ return ERR_PTR(-EINVAL);
+}
+#endif
+
static int pixcir_i2c_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
const struct pixcir_ts_platform_data *pdata =
dev_get_platdata(&client->dev);
struct device *dev = &client->dev;
+ struct device_node *np = dev->of_node;
struct pixcir_i2c_ts_data *tsdata;
struct input_dev *input;
int error;
+ if (np && !pdata) {
+ pdata = pixcir_parse_dt(dev);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+ }
+
if (!pdata) {
dev_err(&client->dev, "platform data not defined\n");
return -EINVAL;
return -EINVAL;
}
+ if (!pdata->chip.max_fingers) {
+ dev_err(dev, "Invalid max_fingers in pdata\n");
+ return -EINVAL;
+ }
+
tsdata = devm_kzalloc(dev, sizeof(*tsdata), GFP_KERNEL);
if (!tsdata)
return -ENOMEM;
tsdata->client = client;
tsdata->input = input;
- tsdata->chip = pdata;
+ tsdata->pdata = pdata;
input->name = client->name;
input->id.bustype = BUS_I2C;
input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
+ tsdata->max_fingers = tsdata->pdata->chip.max_fingers;
+ if (tsdata->max_fingers > PIXCIR_MAX_SLOTS) {
+ tsdata->max_fingers = PIXCIR_MAX_SLOTS;
+ dev_info(dev, "Limiting maximum fingers to %d\n",
+ tsdata->max_fingers);
+ }
+
+ error = input_mt_init_slots(input, tsdata->max_fingers,
+ INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+ if (error) {
+ dev_err(dev, "Error initializing Multi-Touch slots\n");
+ return error;
+ }
+
input_set_drvdata(input, tsdata);
error = devm_gpio_request_one(dev, pdata->gpio_attb,
static const struct i2c_device_id pixcir_i2c_ts_id[] = {
{ "pixcir_ts", 0 },
+ { "pixcir_tangoc", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id);
+#ifdef CONFIG_OF
+static const struct pixcir_i2c_chip_data pixcir_ts_data = {
+ .max_fingers = 2,
+ /* no hw id support */
+};
+
+static const struct pixcir_i2c_chip_data pixcir_tangoc_data = {
+ .max_fingers = 5,
+ .has_hw_ids = true,
+};
+
+static const struct of_device_id pixcir_of_match[] = {
+ { .compatible = "pixcir,pixcir_ts", .data = &pixcir_ts_data },
+ { .compatible = "pixcir,pixcir_tangoc", .data = &pixcir_tangoc_data },
+ { }
+};
+MODULE_DEVICE_TABLE(of, pixcir_of_match);
+#endif
+
static struct i2c_driver pixcir_i2c_ts_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "pixcir_ts",
.pm = &pixcir_dev_pm_ops,
+ .of_match_table = of_match_ptr(pixcir_of_match),
},
.probe = pixcir_i2c_ts_probe,
.remove = pixcir_i2c_ts_remove,
return -ENOENT;
}
- clk_enable(ts.clock);
+ clk_prepare_enable(ts.clock);
dev_dbg(dev, "got and enabled clocks\n");
ts.irq_tc = ret = platform_get_irq(pdev, 0);
free_irq(ts.irq_tc, ts.input);
del_timer_sync(&touch_timer);
- clk_disable(ts.clock);
+ clk_disable_unprepare(ts.clock);
clk_put(ts.clock);
input_unregister_device(ts.input);
#include <linux/sysfs.h>
#include <linux/input/mt.h>
#include <linux/platform_data/zforce_ts.h>
+#include <linux/regulator/consumer.h>
+#include <linux/delay.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
const struct zforce_ts_platdata *pdata;
char phys[32];
+ struct regulator *reg_vdd;
+
bool suspending;
bool suspended;
bool boot_complete;
struct zforce_ts *ts = data;
gpio_set_value(ts->pdata->gpio_rst, 0);
+
+ udelay(10);
+
+ if (!IS_ERR(ts->reg_vdd))
+ regulator_disable(ts->reg_vdd);
}
static struct zforce_ts_platdata *zforce_parse_dt(struct device *dev)
return ret;
}
+ ts->reg_vdd = devm_regulator_get_optional(&client->dev, "vdd");
+ if (IS_ERR(ts->reg_vdd)) {
+ ret = PTR_ERR(ts->reg_vdd);
+ if (ret == -EPROBE_DEFER)
+ return ret;
+ } else {
+ ret = regulator_enable(ts->reg_vdd);
+ if (ret)
+ return ret;
+
+ /*
+ * according to datasheet add 100us grace time after regular
+ * regulator enable delay.
+ */
+ udelay(100);
+ }
+
ret = devm_add_action(&client->dev, zforce_reset, ts);
if (ret) {
dev_err(&client->dev, "failed to register reset action, %d\n",
ret);
+
+ /* hereafter the regulator will be disabled by the action */
+ if (!IS_ERR(ts->reg_vdd))
+ regulator_disable(ts->reg_vdd);
+
return ret;
}
.irqflags = IRQF_TRIGGER_FALLING,
.t19_num_keys = ARRAY_SIZE(mxt_t19_keys),
.t19_keymap = mxt_t19_keys,
- .config = NULL,
- .config_length = 0,
};
static struct i2c_board_info atmel_224s_tp_device = {
static struct mxt_platform_data atmel_1664s_platform_data = {
.irqflags = IRQF_TRIGGER_FALLING,
- .config = NULL,
- .config_length = 0,
};
static struct i2c_board_info atmel_1664s_device = {
/* The platform data for the Atmel maXTouch touchscreen driver */
struct mxt_platform_data {
- const u8 *config;
- size_t config_length;
- u32 config_crc;
unsigned long irqflags;
u8 t19_num_keys;
const unsigned int *t19_keymap;
#define PIXCIR_INT_ENABLE (1UL << 3)
#define PIXCIR_INT_POL_HIGH (1UL << 2)
+/**
+ * struct pixcir_irc_chip_data - chip related data
+ * @max_fingers: Max number of fingers reported simultaneously by h/w
+ * @has_hw_ids: Hardware supports finger tracking IDs
+ *
+ */
+struct pixcir_i2c_chip_data {
+ u8 max_fingers;
+ bool has_hw_ids;
+};
+
struct pixcir_ts_platform_data {
int x_max;
int y_max;
int gpio_attb; /* GPIO connected to ATTB line */
+ struct pixcir_i2c_chip_data chip;
};
#endif
#define SERIO_HAMPSHIRE 0x3b
#define SERIO_PS2MULT 0x3c
#define SERIO_TSC40 0x3d
+#define SERIO_WACOM_IV 0x3e
#endif /* _UAPI_SERIO_H */
*/
#define UI_GET_SYSNAME(len) _IOC(_IOC_READ, UINPUT_IOCTL_BASE, 300, len)
+/**
+ * UI_GET_VERSION - Return version of uinput protocol
+ *
+ * This writes uinput protocol version implemented by the kernel into
+ * the integer pointed to by the ioctl argument. The protocol version
+ * is hard-coded in the kernel and is independent of the uinput device.
+ */
+#define UI_GET_VERSION _IOR(UINPUT_IOCTL_BASE, 301, unsigned int)
+
/*
* To write a force-feedback-capable driver, the upload_effect
* and erase_effect callbacks in input_dev must be implemented.
git.openpandora.org / pandora-kernel.git / commitdiff