summaryrefslogtreecommitdiff
path: root/drivers/input
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-13 11:14:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-13 11:14:05 -0800
commit1c5ff2ab7bba6757e7663302c5905e6404de324a (patch)
tree7f72452032fa5134ba6c6761556f0de04dfec6e7 /drivers/input
parentd6a322774cb7096ca683fc46ddc9482e02ee6133 (diff)
parent009f773836513960d3982e80c86e266d25528563 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov: - new driver for eGalaxTouch serial touchscreen - new driver for TS-4800 touchscreen - an update for Goodix touchscreen driver - PS/2 mouse module was reworked to limit number of protocols we try on pass-through ports to speed up their detection time - wacom_w8001 touchscreen driver now reports pen and touch via separate instances of input devices - other driver changes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (42 commits) Input: elantech - mark protocols v2 and v3 as semi-mt Input: wacom_w8001 - drop use of ABS_MT_TOOL_TYPE Input: gpio-keys - fix check for disabling unsupported keys Input: omap-keypad - remove dead check Input: ti_am335x_tsc - fix HWPEN interrupt handling Input: omap-keypad - set tasklet data earlier Input: rohm_bu21023 - fix handling of retrying firmware update Input: ALPS - report v3 pinnacle trackstick device only if is present Input: ALPS - detect trackstick presence for v7 protocol Input: pcap_ts - use to_delayed_work Input: bma150 - constify bma150_cfg structure Input: i8042 - add Fujitsu Lifebook U745 to the nomux list Input: egalax_ts_serial - fix potential NULL dereference on error Input: uinput - sanity check on ff_effects_max and EV_FF Input: uinput - rework ABS validation Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen" Input: goodix - add axis swapping and axis inversion support Input: goodix - use goodix_i2c_write_u8 instead of i2c_master_send Input: goodix - add power management support ...
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/keyboard/gpio_keys.c29
-rw-r--r--drivers/input/keyboard/omap-keypad.c10
-rw-r--r--drivers/input/misc/bma150.c2
-rw-r--r--drivers/input/misc/da9063_onkey.c8
-rw-r--r--drivers/input/misc/sparcspkr.c18
-rw-r--r--drivers/input/misc/uinput.c158
-rw-r--r--drivers/input/mouse/alps.c22
-rw-r--r--drivers/input/mouse/elantech.c2
-rw-r--r--drivers/input/mouse/focaltech.c22
-rw-r--r--drivers/input/mouse/focaltech.h8
-rw-r--r--drivers/input/mouse/logips2pp.c2
-rw-r--r--drivers/input/mouse/logips2pp.h4
-rw-r--r--drivers/input/mouse/psmouse-base.c770
-rw-r--r--drivers/input/serio/i8042-x86ia64io.h7
-rw-r--r--drivers/input/touchscreen/Kconfig27
-rw-r--r--drivers/input/touchscreen/Makefile2
-rw-r--r--drivers/input/touchscreen/egalax_ts_serial.c194
-rw-r--r--drivers/input/touchscreen/goodix.c513
-rw-r--r--drivers/input/touchscreen/pcap_ts.c2
-rw-r--r--drivers/input/touchscreen/pixcir_i2c_ts.c41
-rw-r--r--drivers/input/touchscreen/rohm_bu21023.c2
-rw-r--r--drivers/input/touchscreen/ti_am335x_tsc.c2
-rw-r--r--drivers/input/touchscreen/ts4800-ts.c216
-rw-r--r--drivers/input/touchscreen/wacom_w8001.c325
24 files changed, 1735 insertions, 651 deletions
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index bef317ff7352..b9f01bd1b7ef 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -96,7 +96,7 @@ struct gpio_keys_drvdata {
* Return value of this function can be used to allocate bitmap
* large enough to hold all bits for given type.
*/
-static inline int get_n_events_by_type(int type)
+static int get_n_events_by_type(int type)
{
BUG_ON(type != EV_SW && type != EV_KEY);
@@ -104,6 +104,22 @@ static inline int get_n_events_by_type(int type)
}
/**
+ * get_bm_events_by_type() - returns bitmap of supported events per @type
+ * @input: input device from which bitmap is retrieved
+ * @type: type of button (%EV_KEY, %EV_SW)
+ *
+ * Return value of this function can be used to allocate bitmap
+ * large enough to hold all bits for given type.
+ */
+static const unsigned long *get_bm_events_by_type(struct input_dev *dev,
+ int type)
+{
+ BUG_ON(type != EV_SW && type != EV_KEY);
+
+ return (type == EV_KEY) ? dev->keybit : dev->swbit;
+}
+
+/**
* gpio_keys_disable_button() - disables given GPIO button
* @bdata: button data for button to be disabled
*
@@ -213,6 +229,7 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
const char *buf, unsigned int type)
{
int n_events = get_n_events_by_type(type);
+ const unsigned long *bitmap = get_bm_events_by_type(ddata->input, type);
unsigned long *bits;
ssize_t error;
int i;
@@ -226,6 +243,11 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
goto out;
/* First validate */
+ if (!bitmap_subset(bits, bitmap, n_events)) {
+ error = -EINVAL;
+ goto out;
+ }
+
for (i = 0; i < ddata->pdata->nbuttons; i++) {
struct gpio_button_data *bdata = &ddata->data[i];
@@ -239,11 +261,6 @@ static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
}
}
- if (i == ddata->pdata->nbuttons) {
- error = -EINVAL;
- goto out;
- }
-
mutex_lock(&ddata->disable_lock);
for (i = 0; i < ddata->pdata->nbuttons; i++) {
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 7502e46165fa..e0d72c8c01e4 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -155,14 +155,6 @@ static void omap_kp_tasklet(unsigned long data)
"pressed" : "released");
#else
key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
- if (key < 0) {
- printk(KERN_WARNING
- "omap-keypad: Spurious key event %d-%d\n",
- col, row);
- /* We scan again after a couple of seconds */
- spurious = 1;
- continue;
- }
if (!(kp_cur_group == (key & GROUP_MASK) ||
kp_cur_group == -1))
@@ -292,8 +284,8 @@ static int omap_kp_probe(struct platform_device *pdev)
setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
/* get the irq and init timer*/
- tasklet_enable(&kp_tasklet);
kp_tasklet.data = (unsigned long) omap_kp;
+ tasklet_enable(&kp_tasklet);
ret = device_create_file(&pdev->dev, &dev_attr_enable);
if (ret < 0)
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index 1d0e61d7c131..b0d445390ee4 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -147,7 +147,7 @@ struct bma150_data {
* are stated and verified by Bosch Sensortec where they are configured
* to provide a generic sensitivity performance.
*/
-static struct bma150_cfg default_cfg = {
+static const struct bma150_cfg default_cfg = {
.any_motion_int = 1,
.hg_int = 1,
.lg_int = 1,
diff --git a/drivers/input/misc/da9063_onkey.c b/drivers/input/misc/da9063_onkey.c
index 8eb697db82d0..bb863e062b03 100644
--- a/drivers/input/misc/da9063_onkey.c
+++ b/drivers/input/misc/da9063_onkey.c
@@ -179,13 +179,13 @@ static irqreturn_t da9063_onkey_irq_handler(int irq, void *data)
input_report_key(onkey->input, KEY_POWER, 1);
input_sync(onkey->input);
schedule_delayed_work(&onkey->work, 0);
- dev_dbg(onkey->dev, "KEY_POWER pressed.\n");
+ dev_dbg(onkey->dev, "KEY_POWER long press.\n");
} else {
- input_report_key(onkey->input, KEY_SLEEP, 1);
+ input_report_key(onkey->input, KEY_POWER, 1);
input_sync(onkey->input);
- input_report_key(onkey->input, KEY_SLEEP, 0);
+ input_report_key(onkey->input, KEY_POWER, 0);
input_sync(onkey->input);
- dev_dbg(onkey->dev, "KEY_SLEEP pressed.\n");
+ dev_dbg(onkey->dev, "KEY_POWER short press.\n");
}
return IRQ_HANDLED;
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index 6f997aa49183..4a5afc7fe96e 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -345,23 +345,19 @@ static struct platform_driver grover_beep_driver = {
.shutdown = sparcspkr_shutdown,
};
+static struct platform_driver * const drivers[] = {
+ &bbc_beep_driver,
+ &grover_beep_driver,
+};
+
static int __init sparcspkr_init(void)
{
- int err = platform_driver_register(&bbc_beep_driver);
-
- if (!err) {
- err = platform_driver_register(&grover_beep_driver);
- if (err)
- platform_driver_unregister(&bbc_beep_driver);
- }
-
- return err;
+ return platform_register_drivers(drivers, ARRAY_SIZE(drivers));
}
static void __exit sparcspkr_exit(void)
{
- platform_driver_unregister(&bbc_beep_driver);
- platform_driver_unregister(&grover_beep_driver);
+ platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
module_init(sparcspkr_init);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 5adbcedcb81c..4eb9e4d94f46 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -256,13 +256,29 @@ static void uinput_destroy_device(struct uinput_device *udev)
static int uinput_create_device(struct uinput_device *udev)
{
struct input_dev *dev = udev->dev;
- int error;
+ int error, nslot;
if (udev->state != UIST_SETUP_COMPLETE) {
printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
return -EINVAL;
}
+ if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+ nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+ error = input_mt_init_slots(dev, nslot, 0);
+ if (error)
+ goto fail1;
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ input_set_events_per_packet(dev, 60);
+ }
+
+ if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) {
+ printk(KERN_DEBUG "%s: ff_effects_max should be non-zero when FF_BIT is set\n",
+ UINPUT_NAME);
+ error = -EINVAL;
+ goto fail1;
+ }
+
if (udev->ff_effects_max) {
error = input_ff_create(dev, udev->ff_effects_max);
if (error)
@@ -308,10 +324,35 @@ static int uinput_open(struct inode *inode, struct file *file)
return 0;
}
+static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
+ const struct input_absinfo *abs)
+{
+ int min, max;
+
+ min = abs->minimum;
+ max = abs->maximum;
+
+ if ((min != 0 || max != 0) && max <= min) {
+ printk(KERN_DEBUG
+ "%s: invalid abs[%02x] min:%d max:%d\n",
+ UINPUT_NAME, code, min, max);
+ return -EINVAL;
+ }
+
+ if (abs->flat > max - min) {
+ printk(KERN_DEBUG
+ "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n",
+ UINPUT_NAME, code, abs->flat, min, max);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int uinput_validate_absbits(struct input_dev *dev)
{
unsigned int cnt;
- int nslot;
+ int error;
if (!test_bit(EV_ABS, dev->evbit))
return 0;
@@ -321,38 +362,12 @@ static int uinput_validate_absbits(struct input_dev *dev)
*/
for_each_set_bit(cnt, dev->absbit, ABS_CNT) {
- int min, max;
-
- min = input_abs_get_min(dev, cnt);
- max = input_abs_get_max(dev, cnt);
-
- if ((min != 0 || max != 0) && max <= min) {
- printk(KERN_DEBUG
- "%s: invalid abs[%02x] min:%d max:%d\n",
- UINPUT_NAME, cnt,
- input_abs_get_min(dev, cnt),
- input_abs_get_max(dev, cnt));
+ if (!dev->absinfo)
return -EINVAL;
- }
- if (input_abs_get_flat(dev, cnt) >
- input_abs_get_max(dev, cnt) - input_abs_get_min(dev, cnt)) {
- printk(KERN_DEBUG
- "%s: abs_flat #%02x out of range: %d "
- "(min:%d/max:%d)\n",
- UINPUT_NAME, cnt,
- input_abs_get_flat(dev, cnt),
- input_abs_get_min(dev, cnt),
- input_abs_get_max(dev, cnt));
- return -EINVAL;
- }
- }
-
- 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);
+ error = uinput_validate_absinfo(dev, cnt, &dev->absinfo[cnt]);
+ if (error)
+ return error;
}
return 0;
@@ -370,8 +385,71 @@ static int uinput_allocate_device(struct uinput_device *udev)
return 0;
}
-static int uinput_setup_device(struct uinput_device *udev,
- const char __user *buffer, size_t count)
+static int uinput_dev_setup(struct uinput_device *udev,
+ struct uinput_setup __user *arg)
+{
+ struct uinput_setup setup;
+ struct input_dev *dev;
+
+ if (udev->state == UIST_CREATED)
+ return -EINVAL;
+
+ if (copy_from_user(&setup, arg, sizeof(setup)))
+ return -EFAULT;
+
+ if (!setup.name[0])
+ return -EINVAL;
+
+ dev = udev->dev;
+ dev->id = setup.id;
+ udev->ff_effects_max = setup.ff_effects_max;
+
+ kfree(dev->name);
+ dev->name = kstrndup(setup.name, UINPUT_MAX_NAME_SIZE, GFP_KERNEL);
+ if (!dev->name)
+ return -ENOMEM;
+
+ udev->state = UIST_SETUP_COMPLETE;
+ return 0;
+}
+
+static int uinput_abs_setup(struct uinput_device *udev,
+ struct uinput_setup __user *arg, size_t size)
+{
+ struct uinput_abs_setup setup = {};
+ struct input_dev *dev;
+ int error;
+
+ if (size > sizeof(setup))
+ return -E2BIG;
+
+ if (udev->state == UIST_CREATED)
+ return -EINVAL;
+
+ if (copy_from_user(&setup, arg, size))
+ return -EFAULT;
+
+ if (setup.code > ABS_MAX)
+ return -ERANGE;
+
+ dev = udev->dev;
+
+ error = uinput_validate_absinfo(dev, setup.code, &setup.absinfo);
+ if (error)
+ return error;
+
+ input_alloc_absinfo(dev);
+ if (!dev->absinfo)
+ return -ENOMEM;
+
+ set_bit(setup.code, dev->absbit);
+ dev->absinfo[setup.code] = setup.absinfo;
+ return 0;
+}
+
+/* legacy setup via write() */
+static int uinput_setup_device_legacy(struct uinput_device *udev,
+ const char __user *buffer, size_t count)
{
struct uinput_user_dev *user_dev;
struct input_dev *dev;
@@ -474,7 +552,7 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer,
retval = udev->state == UIST_CREATED ?
uinput_inject_events(udev, buffer, count) :
- uinput_setup_device(udev, buffer, count);
+ uinput_setup_device_legacy(udev, buffer, count);
mutex_unlock(&udev->mutex);
@@ -735,6 +813,12 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
uinput_destroy_device(udev);
goto out;
+ case UI_DEV_SETUP:
+ retval = uinput_dev_setup(udev, p);
+ goto out;
+
+ /* UI_ABS_SETUP is handled in the variable size ioctls */
+
case UI_SET_EVBIT:
retval = uinput_set_bit(arg, evbit, EV_MAX);
goto out;
@@ -879,6 +963,10 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
name = dev_name(&udev->dev->dev);
retval = uinput_str_to_user(p, name, size);
goto out;
+
+ case UI_ABS_SETUP & ~IOCSIZE_MASK:
+ retval = uinput_abs_setup(udev, p, size);
+ goto out;
}
retval = -EINVAL;
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 41e6cb501e6a..936f07a4e35f 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -31,6 +31,7 @@
#define ALPS_CMD_NIBBLE_10 0x01f2
#define ALPS_REG_BASE_RUSHMORE 0xc2c0
+#define ALPS_REG_BASE_V7 0xc2c0
#define ALPS_REG_BASE_PINNACLE 0x0000
static const struct alps_nibble_commands alps_v3_nibble_commands[] = {
@@ -2047,7 +2048,7 @@ static int alps_absolute_mode_v3(struct psmouse *psmouse)
return 0;
}
-static int alps_probe_trackstick_v3(struct psmouse *psmouse, int reg_base)
+static int alps_probe_trackstick_v3_v7(struct psmouse *psmouse, int reg_base)
{
int ret = -EIO, reg_val;
@@ -2128,15 +2129,12 @@ error:
static int alps_hw_init_v3(struct psmouse *psmouse)
{
+ struct alps_data *priv = psmouse->private;
struct ps2dev *ps2dev = &psmouse->ps2dev;
int reg_val;
unsigned char param[4];
- reg_val = alps_probe_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE);
- if (reg_val == -EIO)
- goto error;
-
- if (reg_val == 0 &&
+ if ((priv->flags & ALPS_DUALPOINT) &&
alps_setup_trackstick_v3(psmouse, ALPS_REG_BASE_PINNACLE) == -EIO)
goto error;
@@ -2613,6 +2611,11 @@ static int alps_set_protocol(struct psmouse *psmouse,
priv->decode_fields = alps_decode_pinnacle;
priv->nibble_commands = alps_v3_nibble_commands;
priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
+
+ if (alps_probe_trackstick_v3_v7(psmouse,
+ ALPS_REG_BASE_PINNACLE) < 0)
+ priv->flags &= ~ALPS_DUALPOINT;
+
break;
case ALPS_PROTO_V3_RUSHMORE:
@@ -2625,8 +2628,8 @@ static int alps_set_protocol(struct psmouse *psmouse,
priv->x_bits = 16;
priv->y_bits = 12;
- if (alps_probe_trackstick_v3(psmouse,
- ALPS_REG_BASE_RUSHMORE) < 0)
+ if (alps_probe_trackstick_v3_v7(psmouse,
+ ALPS_REG_BASE_RUSHMORE) < 0)
priv->flags &= ~ALPS_DUALPOINT;
break;
@@ -2676,6 +2679,9 @@ static int alps_set_protocol(struct psmouse *psmouse,
if (priv->fw_ver[1] != 0xba)
priv->flags |= ALPS_BUTTONPAD;
+ if (alps_probe_trackstick_v3_v7(psmouse, ALPS_REG_BASE_V7) < 0)
+ priv->flags &= ~ALPS_DUALPOINT;
+
break;
case ALPS_PROTO_V8:
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 537ebb0e193a..78f93cf68840 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1222,7 +1222,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
ETP_WMAX_V2, 0, 0);
}
- input_mt_init_slots(dev, 2, 0);
+ input_mt_init_slots(dev, 2, INPUT_MT_SEMI_MT);
input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
break;
diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c
index 4d5576de81be..c8c6a8cc329d 100644
--- a/drivers/input/mouse/focaltech.c
+++ b/drivers/input/mouse/focaltech.c
@@ -49,12 +49,6 @@ int focaltech_detect(struct psmouse *psmouse, bool set_properties)
return 0;
}
-static void focaltech_reset(struct psmouse *psmouse)
-{
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
- psmouse_reset(psmouse);
-}
-
#ifdef CONFIG_MOUSE_PS2_FOCALTECH
/*
@@ -300,6 +294,12 @@ static int focaltech_switch_protocol(struct psmouse *psmouse)
return 0;
}
+static void focaltech_reset(struct psmouse *psmouse)
+{
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ psmouse_reset(psmouse);
+}
+
static void focaltech_disconnect(struct psmouse *psmouse)
{
focaltech_reset(psmouse);
@@ -456,14 +456,4 @@ fail:
kfree(priv);
return error;
}
-
-#else /* CONFIG_MOUSE_PS2_FOCALTECH */
-
-int focaltech_init(struct psmouse *psmouse)
-{
- focaltech_reset(psmouse);
-
- return 0;
-}
-
#endif /* CONFIG_MOUSE_PS2_FOCALTECH */
diff --git a/drivers/input/mouse/focaltech.h b/drivers/input/mouse/focaltech.h
index ca61ebff373e..783b28e8e10b 100644
--- a/drivers/input/mouse/focaltech.h
+++ b/drivers/input/mouse/focaltech.h
@@ -18,6 +18,14 @@
#define _FOCALTECH_H
int focaltech_detect(struct psmouse *psmouse, bool set_properties);
+
+#ifdef CONFIG_MOUSE_PS2_FOCALTECH
int focaltech_init(struct psmouse *psmouse);
+#else
+static inline int focaltech_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif
#endif
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index 136e222e2a16..422da1cd9e76 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -325,7 +325,7 @@ static void ps2pp_set_model_properties(struct psmouse *psmouse,
* that support it.
*/
-int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+int ps2pp_detect(struct psmouse *psmouse, bool set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
diff --git a/drivers/input/mouse/logips2pp.h b/drivers/input/mouse/logips2pp.h
index 0c186f0282d9..bf629453e095 100644
--- a/drivers/input/mouse/logips2pp.h
+++ b/drivers/input/mouse/logips2pp.h
@@ -12,9 +12,9 @@
#define _LOGIPS2PP_H
#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
-int ps2pp_init(struct psmouse *psmouse, bool set_properties);
+int ps2pp_detect(struct psmouse *psmouse, bool set_properties);
#else
-inline int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+static inline int ps2pp_detect(struct psmouse *psmouse, bool set_properties)
{
return -ENOSYS;
}
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index ad18dab0ac47..b9e4ee34c132 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -119,6 +119,7 @@ struct psmouse_protocol {
enum psmouse_type type;
bool maxproto;
bool ignore_parity; /* Protocol should ignore parity errors from KBC */
+ bool try_passthru; /* Try protocol also on passthrough ports */
const char *name;
const char *alias;
int (*detect)(struct psmouse *, bool);
@@ -129,7 +130,6 @@ struct psmouse_protocol {
* psmouse_process_byte() analyzes the PS/2 data stream and reports
* relevant events to the input module once full packet has arrived.
*/
-
psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
@@ -138,22 +138,16 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
if (psmouse->pktcnt < psmouse->pktsize)
return PSMOUSE_GOOD_DATA;
-/*
- * Full packet accumulated, process it
- */
+ /* Full packet accumulated, process it */
-/*
- * Scroll wheel on IntelliMice, scroll buttons on NetMice
- */
-
- if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS)
+ switch (psmouse->type) {
+ case PSMOUSE_IMPS:
+ /* IntelliMouse has scroll wheel */
input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
+ break;
-/*
- * Scroll wheel and buttons on IntelliMouse Explorer
- */
-
- if (psmouse->type == PSMOUSE_IMEX) {
+ case PSMOUSE_IMEX:
+ /* Scroll wheel and buttons on IntelliMouse Explorer */
switch (packet[3] & 0xC0) {
case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */
input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
@@ -168,39 +162,42 @@ psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
break;
}
- }
+ break;
-/*
- * Extra buttons on Genius NewNet 3D
- */
+ case PSMOUSE_GENPS:
+ /* Report scroll buttons on NetMice */
+ input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
- if (psmouse->type == PSMOUSE_GENPS) {
+ /* Extra buttons on Genius NewNet 3D */
input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1);
input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
- }
+ break;
-/*
- * Extra button on ThinkingMouse
- */
- if (psmouse->type == PSMOUSE_THINKPS) {
+ case PSMOUSE_THINKPS:
+ /* Extra button on ThinkingMouse */
input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
- /* Without this bit of weirdness moving up gives wildly high Y changes. */
+
+ /*
+ * Without this bit of weirdness moving up gives wildly
+ * high Y changes.
+ */
packet[1] |= (packet[0] & 0x40) << 1;
- }
+ break;
-/*
- * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first
- * byte.
- */
- if (psmouse->type == PSMOUSE_CORTRON) {
+ case PSMOUSE_CORTRON:
+ /*
+ * Cortron PS2 Trackball reports SIDE button in the
+ * 4th bit of the first byte.
+ */
input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1);
packet[0] |= 0x08;
- }
+ break;
-/*
- * Generic PS/2 Mouse
- */
+ default:
+ break;
+ }
+ /* Generic PS/2 Mouse */
input_report_key(dev, BTN_LEFT, packet[0] & 1);
input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
@@ -222,7 +219,6 @@ void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
/*
* __psmouse_set_state() sets new psmouse state and resets all flags.
*/
-
static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
{
psmouse->state = new_state;
@@ -231,13 +227,11 @@ static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_sta
psmouse->last = jiffies;
}
-
/*
* psmouse_set_state() sets new psmouse state and resets all flags and
* counters while holding serio lock so fighting with interrupt handler
* is not a concern.
*/
-
void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
{
serio_pause_rx(psmouse->ps2dev.serio);
@@ -249,7 +243,6 @@ void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
* psmouse_handle_byte() processes one byte of the input data stream
* by calling corresponding protocol handler.
*/
-
static int psmouse_handle_byte(struct psmouse *psmouse)
{
psmouse_ret_t rc = psmouse->protocol_handler(psmouse);
@@ -292,7 +285,6 @@ static int psmouse_handle_byte(struct psmouse *psmouse)
* psmouse_interrupt() handles incoming characters, either passing them
* for normal processing or gathering them as command response.
*/
-
static irqreturn_t psmouse_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
@@ -335,9 +327,8 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
}
psmouse->packet[psmouse->pktcnt++] = data;
-/*
- * Check if this is a new device announcement (0xAA 0x00)
- */
+
+ /* Check if this is a new device announcement (0xAA 0x00) */
if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) {
if (psmouse->pktcnt == 1) {
psmouse->last = jiffies;
@@ -351,9 +342,8 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
serio_reconnect(serio);
goto out;
}
-/*
- * Not a new device, try processing first byte normally
- */
+
+ /* Not a new device, try processing first byte normally */
psmouse->pktcnt = 1;
if (psmouse_handle_byte(psmouse))
goto out;
@@ -361,9 +351,10 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
psmouse->packet[psmouse->pktcnt++] = data;
}
-/*
- * See if we need to force resync because mouse was idle for too long
- */
+ /*
+ * See if we need to force resync because mouse was idle for
+ * too long.
+ */
if (psmouse->state == PSMOUSE_ACTIVATED &&
psmouse->pktcnt == 1 && psmouse->resync_time &&
time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) {
@@ -380,7 +371,6 @@ static irqreturn_t psmouse_interrupt(struct serio *serio,
return IRQ_HANDLED;
}
-
/*
* psmouse_sliced_command() sends an extended PS/2 command to the mouse
* using sliced syntax, understood by advanced devices, such as Logitech
@@ -404,7 +394,6 @@ int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
return 0;
}
-
/*
* psmouse_reset() resets the mouse into power-on state.
*/
@@ -424,7 +413,6 @@ int psmouse_reset(struct psmouse *psmouse)
/*
* Here we set the mouse resolution.
*/
-
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
static const unsigned char params[] = { 0, 1, 2, 2, 3 };
@@ -441,7 +429,6 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
/*
* Here we set the mouse report rate.
*/
-
static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
{
static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
@@ -457,7 +444,6 @@ static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
/*
* Here we set the mouse scaling.
*/
-
static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
{
ps2_command(&psmouse->ps2dev, NULL,
@@ -468,7 +454,6 @@ static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale)
/*
* psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
*/
-
static int psmouse_poll(struct psmouse *psmouse)
{
return ps2_command(&psmouse->ps2dev, psmouse->packet,
@@ -602,7 +587,7 @@ static int im_explorer_detect(struct psmouse *psmouse, bool set_properties)
if (param[0] != 4)
return -1;
-/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
+ /* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
param[0] = 200;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 80;
@@ -672,10 +657,10 @@ static int ps2bare_detect(struct psmouse *psmouse, bool set_properties)
if (!psmouse->name)
psmouse->name = "Mouse";
-/*
- * We have no way of figuring true number of buttons so let's
- * assume that the device has 3.
- */
+ /*
+ * We have no way of figuring true number of buttons so let's
+ * assume that the device has 3.
+ */
__set_bit(BTN_MIDDLE, psmouse->dev->keybit);
}
@@ -699,284 +684,6 @@ static int cortron_detect(struct psmouse *psmouse, bool set_properties)
return 0;
}
-/*
- * Apply default settings to the psmouse structure. Most of them will
- * be overridden by individual protocol initialization routines.
- */
-
-static void psmouse_apply_defaults(struct psmouse *psmouse)
-{
- struct input_dev *input_dev = psmouse->dev;
-
- memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
- memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
- memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
- memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
- memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
-
- __set_bit(EV_KEY, input_dev->evbit);
- __set_bit(EV_REL, input_dev->evbit);
-
- __set_bit(BTN_LEFT, input_dev->keybit);
- __set_bit(BTN_RIGHT, input_dev->keybit);
-
- __set_bit(REL_X, input_dev->relbit);
- __set_bit(REL_Y, input_dev->relbit);
-
- __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
-
- psmouse->set_rate = psmouse_set_rate;
- psmouse->set_resolution = psmouse_set_resolution;
- psmouse->set_scale = psmouse_set_scale;
- psmouse->poll = psmouse_poll;
- psmouse->protocol_handler = psmouse_process_byte;
- psmouse->pktsize = 3;
- psmouse->reconnect = NULL;
- psmouse->disconnect = NULL;
- psmouse->cleanup = NULL;
- psmouse->pt_activate = NULL;
- psmouse->pt_deactivate = NULL;
-}
-
-/*
- * Apply default settings to the psmouse structure and call specified
- * protocol detection or initialization routine.
- */
-static int psmouse_do_detect(int (*detect)(struct psmouse *psmouse,
- bool set_properties),
- struct psmouse *psmouse, bool set_properties)
-{
- if (set_properties)
- psmouse_apply_defaults(psmouse);
-
- return detect(psmouse, set_properties);
-}
-
-/*
- * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
- * the mouse may have.
- */
-
-static int psmouse_extensions(struct psmouse *psmouse,
- unsigned int max_proto, bool set_properties)
-{
- bool synaptics_hardware = false;
-
-/* Always check for focaltech, this is safe as it uses pnp-id matching */
- if (psmouse_do_detect(focaltech_detect, psmouse, set_properties) == 0) {
- if (max_proto > PSMOUSE_IMEX) {
- if (!set_properties || focaltech_init(psmouse) == 0) {
- if (IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH))
- return PSMOUSE_FOCALTECH;
- /*
- * Note that we need to also restrict
- * psmouse_max_proto so that psmouse_initialize()
- * does not try to reset rate and resolution,
- * because even that upsets the device.
- */
- psmouse_max_proto = PSMOUSE_PS2;
- return PSMOUSE_PS2;
- }
- }
- }
-
-/*
- * We always check for lifebook because it does not disturb mouse
- * (it only checks DMI information).
- */
- if (psmouse_do_detect(lifebook_detect, psmouse, set_properties) == 0) {
- if (max_proto > PSMOUSE_IMEX) {
- if (!set_properties || lifebook_init(psmouse) == 0)
- return PSMOUSE_LIFEBOOK;
- }
- }
-
- if (psmouse_do_detect(vmmouse_detect, psmouse, set_properties) == 0) {
- if (max_proto > PSMOUSE_IMEX) {
- if (!set_properties || vmmouse_init(psmouse) == 0)
- return PSMOUSE_VMMOUSE;
- }
- }
-
-/*
- * Try Kensington ThinkingMouse (we try first, because synaptics probe
- * upsets the thinkingmouse).
- */
-
- if (max_proto > PSMOUSE_IMEX &&
- psmouse_do_detect(thinking_detect, psmouse, set_properties) == 0) {
- return PSMOUSE_THINKPS;
- }
-
-/*
- * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
- * support is disabled in config - we need to know if it is synaptics so we
- * can reset it properly after probing for intellimouse.
- */
- if (max_proto > PSMOUSE_PS2 &&
- psmouse_do_detect(synaptics_detect, psmouse, set_properties) == 0) {
- synaptics_hardware = true;
-
- if (max_proto > PSMOUSE_IMEX) {
-/*
- * Try activating protocol, but check if support is enabled first, since
- * we try detecting Synaptics even when protocol is disabled.
- */
- if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) &&
- (!set_properties || synaptics_init(psmouse) == 0)) {
- return PSMOUSE_SYNAPTICS;
- }
-
-/*
- * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
- * Unfortunately Logitech/Genius probes confuse some firmware versions so
- * we'll have to skip them.
- */
- max_proto = PSMOUSE_IMEX;
- }
-/*
- * Make sure that touchpad is in relative mode, gestures (taps) are enabled
- */
- synaptics_reset(psmouse);
- }
-
-/*
- * Try Cypress Trackpad.
- * Must try it before Finger Sensing Pad because Finger Sensing Pad probe
- * upsets some modules of Cypress Trackpads.
- */
- if (max_proto > PSMOUSE_IMEX &&
- cypress_detect(psmouse, set_properties) == 0) {
- if (IS_ENABLED(CONFIG_MOUSE_PS2_CYPRESS)) {
- if (cypress_init(psmouse) == 0)
- return PSMOUSE_CYPRESS;
-
- /*
- * Finger Sensing Pad probe upsets some modules of
- * Cypress Trackpad, must avoid Finger Sensing Pad
- * probe if Cypress Trackpad device detected.
- */
- return PSMOUSE_PS2;
- }
-
- max_proto = PSMOUSE_IMEX;
- }
-
-/*
- * Try ALPS TouchPad
- */
- if (max_proto > PSMOUSE_IMEX) {
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
- if (psmouse_do_detect(alps_detect,
- psmouse, set_properties) == 0) {
- if (!set_properties || alps_init(psmouse) == 0)
- return PSMOUSE_ALPS;
-/*
- * Init failed, try basic relative protocols
- */
- max_proto = PSMOUSE_IMEX;
- }
- }
-
-/*
- * Try OLPC HGPK touchpad.
- */
- if (max_proto > PSMOUSE_IMEX &&
- psmouse_do_detect(hgpk_detect, psmouse, set_properties) == 0) {
- if (!set_properties || hgpk_init(psmouse) == 0)
- return PSMOUSE_HGPK;
-/*
- * Init failed, try basic relative protocols
- */
- max_proto = PSMOUSE_IMEX;
- }
-
-/*
- * Try Elantech touchpad.
- */
- if (max_proto > PSMOUSE_IMEX &&
- psmouse_do_detect(elantech_detect, psmouse, set_properties) == 0) {
- if (!set_properties || elantech_init(psmouse) == 0)
- return PSMOUSE_ELANTECH;
-/*
- * Init failed, try basic relative protocols
- */
- max_proto = PSMOUSE_IMEX;
- }
-
- if (max_proto > PSMOUSE_IMEX) {
- if (psmouse_do_detect(genius_detect,
- psmouse, set_properties) == 0)
- return PSMOUSE_GENPS;
-
- if (psmouse_do_detect(ps2pp_init,
- psmouse, set_properties) == 0)
- return PSMOUSE_PS2PP;
-
- if (psmouse_do_detect(trackpoint_detect,
- psmouse, set_properties) == 0)
- return PSMOUSE_TRACKPOINT;
-
- if (psmouse_do_detect(touchkit_ps2_detect,
- psmouse, set_properties) == 0)
- return PSMOUSE_TOUCHKIT_PS2;
- }
-
-/*
- * Try Finger Sensing Pad. We do it here because its probe upsets
- * Trackpoint devices (causing TP_READ_ID command to time out).
- */
- if (max_proto > PSMOUSE_IMEX) {
- if (psmouse_do_detect(fsp_detect,
- psmouse, set_properties) == 0) {
- if (!set_properties || fsp_init(psmouse) == 0)
- return PSMOUSE_FSP;
-/*
- * Init failed, try basic relative protocols
- */
- max_proto = PSMOUSE_IMEX;
- }
- }
-
-/*
- * Reset to defaults in case the device got confused by extended
- * protocol probes. Note that we follow up with full reset because
- * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
- */
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
- psmouse_reset(psmouse);
-
- if (max_proto >= PSMOUSE_IMEX &&
- psmouse_do_detect(im_explorer_detect,
- psmouse, set_properties) == 0) {
- return PSMOUSE_IMEX;
- }
-
- if (max_proto >= PSMOUSE_IMPS &&
- psmouse_do_detect(intellimouse_detect,
- psmouse, set_properties) == 0) {
- return PSMOUSE_IMPS;
- }
-
-/*
- * Okay, all failed, we have a standard mouse here. The number of the buttons
- * is still a question, though. We assume 3.
- */
- psmouse_do_detect(ps2bare_detect, psmouse, set_properties);
-
- if (synaptics_hardware) {
-/*
- * We detected Synaptics hardware but it did not respond to IMPS/2 probes.
- * We need to reset the touchpad because if there is a track point on the
- * pass through port it could get disabled while probing for protocol
- * extensions.
- */
- psmouse_reset(psmouse);
- }
-
- return PSMOUSE_PS2;
-}
-
static const struct psmouse_protocol psmouse_protocols[] = {
{
.type = PSMOUSE_PS2,
@@ -985,13 +692,14 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.maxproto = true,
.ignore_parity = true,
.detect = ps2bare_detect,
+ .try_passthru = true,
},
#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
{
.type = PSMOUSE_PS2PP,
.name = "PS2++",
.alias = "logitech",
- .detect = ps2pp_init,
+ .detect = ps2pp_detect,
},
#endif
{
@@ -1022,6 +730,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.maxproto = true,
.ignore_parity = true,
.detect = intellimouse_detect,
+ .try_passthru = true,
},
{
.type = PSMOUSE_IMEX,
@@ -1030,6 +739,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.maxproto = true,
.ignore_parity = true,
.detect = im_explorer_detect,
+ .try_passthru = true,
},
#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
{
@@ -1061,6 +771,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.type = PSMOUSE_LIFEBOOK,
.name = "LBPS/2",
.alias = "lifebook",
+ .detect = lifebook_detect,
.init = lifebook_init,
},
#endif
@@ -1070,6 +781,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.name = "TPPS/2",
.alias = "trackpoint",
.detect = trackpoint_detect,
+ .try_passthru = true,
},
#endif
#ifdef CONFIG_MOUSE_PS2_TOUCHKIT
@@ -1138,7 +850,7 @@ static const struct psmouse_protocol psmouse_protocols[] = {
},
};
-static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+static const struct psmouse_protocol *__psmouse_protocol_by_type(enum psmouse_type type)
{
int i;
@@ -1146,6 +858,17 @@ static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type
if (psmouse_protocols[i].type == type)
return &psmouse_protocols[i];
+ return NULL;
+}
+
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+{
+ const struct psmouse_protocol *proto;
+
+ proto = __psmouse_protocol_by_type(type);
+ if (proto)
+ return proto;
+
WARN_ON(1);
return &psmouse_protocols[0];
}
@@ -1166,23 +889,288 @@ static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name,
return NULL;
}
+/*
+ * Apply default settings to the psmouse structure. Most of them will
+ * be overridden by individual protocol initialization routines.
+ */
+static void psmouse_apply_defaults(struct psmouse *psmouse)
+{
+ struct input_dev *input_dev = psmouse->dev;
+
+ memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
+ memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
+ memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
+ memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
+ memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_REL, input_dev->evbit);
+
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+ psmouse->set_rate = psmouse_set_rate;
+ psmouse->set_resolution = psmouse_set_resolution;
+ psmouse->set_scale = psmouse_set_scale;
+ psmouse->poll = psmouse_poll;
+ psmouse->protocol_handler = psmouse_process_byte;
+ psmouse->pktsize = 3;
+ psmouse->reconnect = NULL;
+ psmouse->disconnect = NULL;
+ psmouse->cleanup = NULL;
+ psmouse->pt_activate = NULL;
+ psmouse->pt_deactivate = NULL;
+}
+
+static bool psmouse_try_protocol(struct psmouse *psmouse,
+ enum psmouse_type type,
+ unsigned int *max_proto,
+ bool set_properties, bool init_allowed)
+{
+ const struct psmouse_protocol *proto;
+
+ proto = __psmouse_protocol_by_type(type);
+ if (!proto)
+ return false;
+
+ if (psmouse->ps2dev.serio->id.type == SERIO_PS_PSTHRU &&
+ !proto->try_passthru) {
+ return false;
+ }
+
+ if (set_properties)
+ psmouse_apply_defaults(psmouse);
+
+ if (proto->detect(psmouse, set_properties) != 0)
+ return false;
+
+ if (set_properties && proto->init && init_allowed) {
+ if (proto->init(psmouse) != 0) {
+ /*
+ * We detected device, but init failed. Adjust
+ * max_proto so we only try standard protocols.
+ */
+ if (*max_proto > PSMOUSE_IMEX)
+ *max_proto = PSMOUSE_IMEX;
+
+ return false;
+ }
+ }
+
+ return true;
+}
/*
- * psmouse_probe() probes for a PS/2 mouse.
+ * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
+ * the mouse may have.
*/
+static int psmouse_extensions(struct psmouse *psmouse,
+ unsigned int max_proto, bool set_properties)
+{
+ bool synaptics_hardware = false;
+
+ /*
+ * Always check for focaltech, this is safe as it uses pnp-id
+ * matching.
+ */
+ if (psmouse_try_protocol(psmouse, PSMOUSE_FOCALTECH,
+ &max_proto, set_properties, false)) {
+ if (max_proto > PSMOUSE_IMEX &&
+ IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) &&
+ (!set_properties || focaltech_init(psmouse) == 0)) {
+ return PSMOUSE_FOCALTECH;
+ }
+ /*
+ * Restrict psmouse_max_proto so that psmouse_initialize()
+ * does not try to reset rate and resolution, because even
+ * that upsets the device.
+ * This also causes us to basically fall through to basic
+ * protocol detection, where we fully reset the mouse,
+ * and set it up as bare PS/2 protocol device.
+ */
+ psmouse_max_proto = max_proto = PSMOUSE_PS2;
+ }
+
+ /*
+ * We always check for LifeBook because it does not disturb mouse
+ * (it only checks DMI information).
+ */
+ if (psmouse_try_protocol(psmouse, PSMOUSE_LIFEBOOK, &max_proto,
+ set_properties, max_proto > PSMOUSE_IMEX))
+ return PSMOUSE_LIFEBOOK;
+ if (psmouse_try_protocol(psmouse, PSMOUSE_VMMOUSE, &max_proto,
+ set_properties, max_proto > PSMOUSE_IMEX))
+ return PSMOUSE_VMMOUSE;
+
+ /*
+ * Try Kensington ThinkingMouse (we try first, because Synaptics
+ * probe upsets the ThinkingMouse).
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_THINKPS, &max_proto,
+ set_properties, true)) {
+ return PSMOUSE_THINKPS;
+ }
+
+ /*
+ * Try Synaptics TouchPad. Note that probing is done even if
+ * Synaptics protocol support is disabled in config - we need to
+ * know if it is Synaptics so we can reset it properly after
+ * probing for IntelliMouse.
+ */
+ if (max_proto > PSMOUSE_PS2 &&
+ psmouse_try_protocol(psmouse, PSMOUSE_SYNAPTICS, &max_proto,
+ set_properties, false)) {
+ synaptics_hardware = true;
+
+ if (max_proto > PSMOUSE_IMEX) {
+ /*
+ * Try activating protocol, but check if support is
+ * enabled first, since we try detecting Synaptics
+ * even when protocol is disabled.
+ */
+ if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) &&
+ (!set_properties || synaptics_init(psmouse) == 0)) {
+ return PSMOUSE_SYNAPTICS;
+ }
+
+ /*
+ * Some Synaptics touchpads can emulate extended
+ * protocols (like IMPS/2). Unfortunately
+ * Logitech/Genius probes confuse some firmware
+ * versions so we'll have to skip them.
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+
+ /*
+ * Make sure that touchpad is in relative mode, gestures
+ * (taps) are enabled.
+ */
+ synaptics_reset(psmouse);
+ }
+
+ /*
+ * Try Cypress Trackpad. We must try it before Finger Sensing Pad
+ * because Finger Sensing Pad probe upsets some modules of Cypress
+ * Trackpads.
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_CYPRESS, &max_proto,
+ set_properties, true)) {
+ return PSMOUSE_CYPRESS;
+ }
+
+ /* Try ALPS TouchPad */
+ if (max_proto > PSMOUSE_IMEX) {
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ if (psmouse_try_protocol(psmouse, PSMOUSE_ALPS,
+ &max_proto, set_properties, true))
+ return PSMOUSE_ALPS;
+ }
+
+ /* Try OLPC HGPK touchpad */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_HGPK, &max_proto,
+ set_properties, true)) {
+ return PSMOUSE_HGPK;
+ }
+
+ /* Try Elantech touchpad */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_ELANTECH,
+ &max_proto, set_properties, true)) {
+ return PSMOUSE_ELANTECH;
+ }
+
+ if (max_proto > PSMOUSE_IMEX) {
+ if (psmouse_try_protocol(psmouse, PSMOUSE_GENPS,
+ &max_proto, set_properties, true))
+ return PSMOUSE_GENPS;
+
+ if (psmouse_try_protocol(psmouse, PSMOUSE_PS2PP,
+ &max_proto, set_properties, true))
+ return PSMOUSE_PS2PP;
+
+ if (psmouse_try_protocol(psmouse, PSMOUSE_TRACKPOINT,
+ &max_proto, set_properties, true))
+ return PSMOUSE_TRACKPOINT;
+
+ if (psmouse_try_protocol(psmouse, PSMOUSE_TOUCHKIT_PS2,
+ &max_proto, set_properties, true))
+ return PSMOUSE_TOUCHKIT_PS2;
+ }
+
+ /*
+ * Try Finger Sensing Pad. We do it here because its probe upsets
+ * Trackpoint devices (causing TP_READ_ID command to time out).
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_FSP,
+ &max_proto, set_properties, true)) {
+ return PSMOUSE_FSP;
+ }
+
+ /*
+ * Reset to defaults in case the device got confused by extended
+ * protocol probes. Note that we follow up with full reset because
+ * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
+ */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ psmouse_reset(psmouse);
+
+ if (max_proto >= PSMOUSE_IMEX &&
+ psmouse_try_protocol(psmouse, PSMOUSE_IMEX,
+ &max_proto, set_properties, true)) {
+ return PSMOUSE_IMEX;
+ }
+
+ if (max_proto >= PSMOUSE_IMPS &&
+ psmouse_try_protocol(psmouse, PSMOUSE_IMPS,
+ &max_proto, set_properties, true)) {
+ return PSMOUSE_IMPS;
+ }
+
+ /*
+ * Okay, all failed, we have a standard mouse here. The number of
+ * the buttons is still a question, though. We assume 3.
+ */
+ psmouse_try_protocol(psmouse, PSMOUSE_PS2,
+ &max_proto, set_properties, true);
+
+ if (synaptics_hardware) {
+ /*
+ * We detected Synaptics hardware but it did not respond to
+ * IMPS/2 probes. We need to reset the touchpad because if
+ * there is a track point on the pass through port it could
+ * get disabled while probing for protocol extensions.
+ */
+ psmouse_reset(psmouse);
+ }
+
+ return PSMOUSE_PS2;
+}
+
+/*
+ * psmouse_probe() probes for a PS/2 mouse.
+ */
static int psmouse_probe(struct psmouse *psmouse)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
-/*
- * First, we check if it's a mouse. It should send 0x00 or 0x03
- * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
- * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
- * ID queries, probably due to a firmware bug.
- */
-
+ /*
+ * First, we check if it's a mouse. It should send 0x00 or 0x03 in
+ * case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
+ * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and
+ * subsequent ID queries, probably due to a firmware bug.
+ */
param[0] = 0xa5;
if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
return -1;
@@ -1191,10 +1179,10 @@ static int psmouse_probe(struct psmouse *psmouse)
param[0] != 0x04 && param[0] != 0xff)
return -1;
-/*
- * Then we reset and disable the mouse so that it doesn't generate events.
- */
-
+ /*
+ * Then we reset and disable the mouse so that it doesn't generate
+ * events.
+ */
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
psmouse_warn(psmouse, "Failed to reset mouse on %s\n",
ps2dev->serio->phys);
@@ -1205,13 +1193,11 @@ static int psmouse_probe(struct psmouse *psmouse)
/*
* psmouse_initialize() initializes the mouse to a sane state.
*/
-
static void psmouse_initialize(struct psmouse *psmouse)
{
-/*
- * We set the mouse report rate, resolution and scaling.
- */
-
+ /*
+ * We set the mouse report rate, resolution and scaling.
+ */
if (psmouse_max_proto != PSMOUSE_PS2) {
psmouse->set_rate(psmouse, psmouse->rate);
psmouse->set_resolution(psmouse, psmouse->resolution);
@@ -1222,7 +1208,6 @@ static void psmouse_initialize(struct psmouse *psmouse)
/*
* psmouse_activate() enables the mouse so that we get motion reports from it.
*/
-
int psmouse_activate(struct psmouse *psmouse)
{
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
@@ -1236,10 +1221,9 @@ int psmouse_activate(struct psmouse *psmouse)
}
/*
- * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
- * reports from it unless we explicitly request it.
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get
+ * motion reports from it unless we explicitly request it.
*/
-
int psmouse_deactivate(struct psmouse *psmouse)
{
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) {
@@ -1252,11 +1236,9 @@ int psmouse_deactivate(struct psmouse *psmouse)
return 0;
}
-
/*
* psmouse_resync() attempts to re-validate current protocol.
*/
-
static void psmouse_resync(struct work_struct *work)
{
struct psmouse *parent = NULL, *psmouse =
@@ -1276,16 +1258,16 @@ static void psmouse_resync(struct work_struct *work)
psmouse_deactivate(parent);
}
-/*
- * Some mice don't ACK commands sent while they are in the middle of
- * transmitting motion packet. To avoid delay we use ps2_sendbyte()
- * instead of ps2_command() which would wait for 200ms for an ACK
- * that may never come.
- * As an additional quirk ALPS touchpads may not only forget to ACK
- * disable command but will stop reporting taps, so if we see that
- * mouse at least once ACKs disable we will do full reconnect if ACK
- * is missing.
- */
+ /*
+ * Some mice don't ACK commands sent while they are in the middle of
+ * transmitting motion packet. To avoid delay we use ps2_sendbyte()
+ * instead of ps2_command() which would wait for 200ms for an ACK
+ * that may never come.
+ * As an additional quirk ALPS touchpads may not only forget to ACK
+ * disable command but will stop reporting taps, so if we see that
+ * mouse at least once ACKs disable we will do full reconnect if ACK
+ * is missing.
+ */
psmouse->num_resyncs++;
if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
@@ -1294,13 +1276,13 @@ static void psmouse_resync(struct work_struct *work)
} else
psmouse->acks_disable_command = true;
-/*
- * Poll the mouse. If it was reset the packet will be shorter than
- * psmouse->pktsize and ps2_command will fail. We do not expect and
- * do not handle scenario when mouse "upgrades" its protocol while
- * disconnected since it would require additional delay. If we ever
- * see a mouse that does it we'll adjust the code.
- */
+ /*
+ * Poll the mouse. If it was reset the packet will be shorter than
+ * psmouse->pktsize and ps2_command will fail. We do not expect and
+ * do not handle scenario when mouse "upgrades" its protocol while
+ * disconnected since it would require additional delay. If we ever
+ * see a mouse that does it we'll adjust the code.
+ */
if (!failed) {
if (psmouse->poll(psmouse))
failed = true;
@@ -1317,11 +1299,12 @@ static void psmouse_resync(struct work_struct *work)
psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
}
}
-/*
- * Now try to enable mouse. We try to do that even if poll failed and also
- * repeat our attempts 5 times, otherwise we may be left out with disabled
- * mouse.
- */
+
+ /*
+ * Now try to enable mouse. We try to do that even if poll failed
+ * and also repeat our attempts 5 times, otherwise we may be left
+ * out with disabled mouse.
+ */
for (i = 0; i < 5; i++) {
if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
enabled = true;
@@ -1353,7 +1336,6 @@ static void psmouse_resync(struct work_struct *work)
/*
* psmouse_cleanup() resets the mouse into power-on state.
*/
-
static void psmouse_cleanup(struct serio *serio)
{
struct psmouse *psmouse = serio_get_drvdata(serio);
@@ -1378,15 +1360,15 @@ static void psmouse_cleanup(struct serio *serio)
if (psmouse->cleanup)
psmouse->cleanup(psmouse);
-/*
- * Reset the mouse to defaults (bare PS/2 protocol).
- */
+ /*
+ * Reset the mouse to defaults (bare PS/2 protocol).
+ */
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
-/*
- * Some boxes, such as HP nx7400, get terribly confused if mouse
- * is not fully enabled before suspending/shutting down.
- */
+ /*
+ * Some boxes, such as HP nx7400, get terribly confused if mouse
+ * is not fully enabled before suspending/shutting down.
+ */
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
if (parent) {
@@ -1402,7 +1384,6 @@ static void psmouse_cleanup(struct serio *serio)
/*
* psmouse_disconnect() closes and frees.
*/
-
static void psmouse_disconnect(struct serio *serio)
{
struct psmouse *psmouse, *parent = NULL;
@@ -1602,7 +1583,6 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
goto out;
}
-
static int psmouse_reconnect(struct serio *serio)
{
struct psmouse *psmouse = serio_get_drvdata(serio);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index c11556563ef0..68f5f4a0f1e7 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -258,6 +258,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
},
},
{
+ /* Fujitsu Lifebook U745 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U745"),
+ },
+ },
+ {
/* Fujitsu T70H */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index ae33da7ab51f..53a97b379c9f 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -295,6 +295,16 @@ config TOUCHSCREEN_EGALAX
To compile this driver as a module, choose M here: the
module will be called egalax_ts.
+config TOUCHSCREEN_EGALAX_SERIAL
+ tristate "EETI eGalax serial touchscreen"
+ select SERIO
+ help
+ Say Y here to enable support for serial connected EETI
+ eGalax touch panels.
+
+ To compile this driver as a module, choose M here: the
+ module will be called egalax_ts_serial.
+
config TOUCHSCREEN_FT6236
tristate "FT6236 I2C touchscreen"
depends on I2C
@@ -324,6 +334,7 @@ config TOUCHSCREEN_FUJITSU
config TOUCHSCREEN_GOODIX
tristate "Goodix I2C touchscreen"
depends on I2C
+ depends on GPIOLIB
help
Say Y here if you have the Goodix touchscreen (such as one
installed in Onda v975w tablets) connected to your
@@ -927,6 +938,22 @@ config TOUCHSCREEN_TOUCHIT213
To compile this driver as a module, choose M here: the
module will be called touchit213.
+config TOUCHSCREEN_TS4800
+ tristate "TS-4800 touchscreen"
+ depends on HAS_IOMEM && OF
+ select MFD_SYSCON
+ select INPUT_POLLDEV
+ help
+ Say Y here if you have a touchscreen on a TS-4800 board.
+
+ On TS-4800, the touchscreen is not handled directly by Linux but by
+ a companion FPGA.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ts4800_ts.
+
config TOUCHSCREEN_TSC_SERIO
tristate "TSC-10/25/40 serial touchscreen support"
select SERIO
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index cbaa6abb08da..968ff12e3132 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o
obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o
+obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o
obj-$(CONFIG_TOUCHSCREEN_FT6236) += ft6236.o
obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o
@@ -68,6 +69,7 @@ obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
+obj-$(CONFIG_TOUCHSCREEN_TS4800) += ts4800-ts.o
obj-$(CONFIG_TOUCHSCREEN_TSC_SERIO) += tsc40.o
obj-$(CONFIG_TOUCHSCREEN_TSC200X_CORE) += tsc200x-core.o
obj-$(CONFIG_TOUCHSCREEN_TSC2004) += tsc2004.o
diff --git a/drivers/input/touchscreen/egalax_ts_serial.c b/drivers/input/touchscreen/egalax_ts_serial.c
new file mode 100644
index 000000000000..657bbae608c8
--- /dev/null
+++ b/drivers/input/touchscreen/egalax_ts_serial.c
@@ -0,0 +1,194 @@
+/*
+ * EETI Egalax serial touchscreen driver
+ *
+ * Copyright (c) 2015 Zoltán Böszörményi <zboszor@pr.hu>
+ *
+ * based on the
+ *
+ * Hampshire serial touchscreen driver (Copyright (c) 2010 Adam Bennett)
+ */
+
+/*
+ * 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/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "EETI Egalax serial touchscreen driver"
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define EGALAX_FORMAT_MAX_LENGTH 6
+#define EGALAX_FORMAT_START_BIT BIT(7)
+#define EGALAX_FORMAT_PRESSURE_BIT BIT(6)
+#define EGALAX_FORMAT_TOUCH_BIT BIT(0)
+#define EGALAX_FORMAT_RESOLUTION_MASK 0x06
+
+#define EGALAX_MIN_XC 0
+#define EGALAX_MAX_XC 0x4000
+#define EGALAX_MIN_YC 0
+#define EGALAX_MAX_YC 0x4000
+
+/*
+ * Per-touchscreen data.
+ */
+struct egalax {
+ struct input_dev *input;
+ struct serio *serio;
+ int idx;
+ u8 data[EGALAX_FORMAT_MAX_LENGTH];
+ char phys[32];
+};
+
+static void egalax_process_data(struct egalax *egalax)
+{
+ struct input_dev *dev = egalax->input;
+ u8 *data = egalax->data;
+ u16 x, y;
+ u8 shift;
+ u8 mask;
+
+ shift = 3 - ((data[0] & EGALAX_FORMAT_RESOLUTION_MASK) >> 1);
+ mask = 0xff >> (shift + 1);
+
+ x = (((u16)(data[1] & mask) << 7) | (data[2] & 0x7f)) << shift;
+ y = (((u16)(data[3] & mask) << 7) | (data[4] & 0x7f)) << shift;
+
+ input_report_key(dev, BTN_TOUCH, data[0] & EGALAX_FORMAT_TOUCH_BIT);
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_sync(dev);
+}
+
+static irqreturn_t egalax_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct egalax *egalax = serio_get_drvdata(serio);
+ int pkt_len;
+
+ egalax->data[egalax->idx++] = data;
+
+ if (likely(egalax->data[0] & EGALAX_FORMAT_START_BIT)) {
+ pkt_len = egalax->data[0] & EGALAX_FORMAT_PRESSURE_BIT ? 6 : 5;
+ if (pkt_len == egalax->idx) {
+ egalax_process_data(egalax);
+ egalax->idx = 0;
+ }
+ } else {
+ dev_dbg(&serio->dev, "unknown/unsynchronized data: %x\n",
+ egalax->data[0]);
+ egalax->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * egalax_connect() is the routine that is called when someone adds a
+ * new serio device that supports egalax protocol and registers it as
+ * an input device. This is usually accomplished using inputattach.
+ */
+static int egalax_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct egalax *egalax;
+ struct input_dev *input_dev;
+ int error;
+
+ egalax = kzalloc(sizeof(struct egalax), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!egalax || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ egalax->serio = serio;
+ egalax->input = input_dev;
+ snprintf(egalax->phys, sizeof(egalax->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "EETI eGalaxTouch Serial TouchScreen";
+ input_dev->phys = egalax->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_EGALAX;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0001;
+ input_dev->dev.parent = &serio->dev;
+
+ input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X,
+ EGALAX_MIN_XC, EGALAX_MAX_XC, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ EGALAX_MIN_YC, EGALAX_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, egalax);
+
+ error = serio_open(serio, drv);
+ if (error)
+ goto err_reset_drvdata;
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_close_serio;
+
+ return 0;
+
+err_close_serio:
+ serio_close(serio);
+err_reset_drvdata:
+ serio_set_drvdata(serio, NULL);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(egalax);
+ return error;
+}
+
+static void egalax_disconnect(struct serio *serio)
+{
+ struct egalax *egalax = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(egalax->input);
+ kfree(egalax);
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id egalax_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_EGALAX,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, egalax_serio_ids);
+
+static struct serio_driver egalax_drv = {
+ .driver = {
+ .name = "egalax",
+ },
+ .description = DRIVER_DESC,
+ .id_table = egalax_serio_ids,
+ .interrupt = egalax_interrupt,
+ .connect = egalax_connect,
+ .disconnect = egalax_disconnect,
+};
+module_serio_driver(egalax_drv);
+
+MODULE_AUTHOR("Zoltán Böszörményi <zboszor@pr.hu>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 4d113c9e4b77..240b16f3ee97 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -2,6 +2,7 @@
* Driver for Goodix Touchscreens
*
* Copyright (c) 2014 Red Hat Inc.
+ * Copyright (c) 2015 K. Merker <merker@debian.org>
*
* This code is based on gt9xx.c authored by andrew@goodix.com:
*
@@ -16,6 +17,8 @@
#include <linux/kernel.h>
#include <linux/dmi.h>
+#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/input/mt.h>
@@ -33,11 +36,24 @@ struct goodix_ts_data {
struct input_dev *input_dev;
int abs_x_max;
int abs_y_max;
+ bool swapped_x_y;
+ bool inverted_x;
+ bool inverted_y;
unsigned int max_touch_num;
unsigned int int_trigger_type;
- bool rotated_screen;
+ int cfg_len;
+ struct gpio_desc *gpiod_int;
+ struct gpio_desc *gpiod_rst;
+ u16 id;
+ u16 version;
+ const char *cfg_name;
+ struct completion firmware_loading_complete;
+ unsigned long irq_flags;
};
+#define GOODIX_GPIO_INT_NAME "irq"
+#define GOODIX_GPIO_RST_NAME "reset"
+
#define GOODIX_MAX_HEIGHT 4096
#define GOODIX_MAX_WIDTH 4096
#define GOODIX_INT_TRIGGER 1
@@ -45,8 +61,13 @@ struct goodix_ts_data {
#define GOODIX_MAX_CONTACTS 10
#define GOODIX_CONFIG_MAX_LENGTH 240
+#define GOODIX_CONFIG_911_LENGTH 186
+#define GOODIX_CONFIG_967_LENGTH 228
/* Register defines */
+#define GOODIX_REG_COMMAND 0x8040
+#define GOODIX_CMD_SCREEN_OFF 0x05
+
#define GOODIX_READ_COOR_ADDR 0x814E
#define GOODIX_REG_CONFIG_DATA 0x8047
#define GOODIX_REG_ID 0x8140
@@ -115,6 +136,63 @@ static int goodix_i2c_read(struct i2c_client *client,
return ret < 0 ? ret : (ret != ARRAY_SIZE(msgs) ? -EIO : 0);
}
+/**
+ * goodix_i2c_write - write data to a register of the i2c slave device.
+ *
+ * @client: i2c device.
+ * @reg: the register to write to.
+ * @buf: raw data buffer to write.
+ * @len: length of the buffer to write
+ */
+static int goodix_i2c_write(struct i2c_client *client, u16 reg, const u8 *buf,
+ unsigned len)
+{
+ u8 *addr_buf;
+ struct i2c_msg msg;
+ int ret;
+
+ addr_buf = kmalloc(len + 2, GFP_KERNEL);
+ if (!addr_buf)
+ return -ENOMEM;
+
+ addr_buf[0] = reg >> 8;
+ addr_buf[1] = reg & 0xFF;
+ memcpy(&addr_buf[2], buf, len);
+
+ msg.flags = 0;
+ msg.addr = client->addr;
+ msg.buf = addr_buf;
+ msg.len = len + 2;
+
+ ret = i2c_transfer(client->adapter, &msg, 1);
+ kfree(addr_buf);
+ return ret < 0 ? ret : (ret != 1 ? -EIO : 0);
+}
+
+static int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value)
+{
+ return goodix_i2c_write(client, reg, &value, sizeof(value));
+}
+
+static int goodix_get_cfg_len(u16 id)
+{
+ switch (id) {
+ case 911:
+ case 9271:
+ case 9110:
+ case 927:
+ case 928:
+ return GOODIX_CONFIG_911_LENGTH;
+
+ case 912:
+ case 967:
+ return GOODIX_CONFIG_967_LENGTH;
+
+ default:
+ return GOODIX_CONFIG_MAX_LENGTH;
+ }
+}
+
static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)
{
int touch_num;
@@ -155,10 +233,13 @@ static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data)
int input_y = get_unaligned_le16(&coor_data[3]);
int input_w = get_unaligned_le16(&coor_data[5]);
- if (ts->rotated_screen) {
+ /* Inversions have to happen before axis swapping */
+ if (ts->inverted_x)
input_x = ts->abs_x_max - input_x;
+ if (ts->inverted_y)
input_y = ts->abs_y_max - input_y;
- }
+ if (ts->swapped_x_y)
+ swap(input_x, input_y);
input_mt_slot(ts->input_dev, id);
input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
@@ -202,21 +283,195 @@ static void goodix_process_events(struct goodix_ts_data *ts)
*/
static irqreturn_t goodix_ts_irq_handler(int irq, void *dev_id)
{
- static const u8 end_cmd[] = {
- GOODIX_READ_COOR_ADDR >> 8,
- GOODIX_READ_COOR_ADDR & 0xff,
- 0
- };
struct goodix_ts_data *ts = dev_id;
goodix_process_events(ts);
- if (i2c_master_send(ts->client, end_cmd, sizeof(end_cmd)) < 0)
+ if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)
dev_err(&ts->client->dev, "I2C write end_cmd error\n");
return IRQ_HANDLED;
}
+static void goodix_free_irq(struct goodix_ts_data *ts)
+{
+ devm_free_irq(&ts->client->dev, ts->client->irq, ts);
+}
+
+static int goodix_request_irq(struct goodix_ts_data *ts)
+{
+ return devm_request_threaded_irq(&ts->client->dev, ts->client->irq,
+ NULL, goodix_ts_irq_handler,
+ ts->irq_flags, ts->client->name, ts);
+}
+
+/**
+ * goodix_check_cfg - Checks if config fw is valid
+ *
+ * @ts: goodix_ts_data pointer
+ * @cfg: firmware config data
+ */
+static int goodix_check_cfg(struct goodix_ts_data *ts,
+ const struct firmware *cfg)
+{
+ int i, raw_cfg_len;
+ u8 check_sum = 0;
+
+ if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) {
+ dev_err(&ts->client->dev,
+ "The length of the config fw is not correct");
+ return -EINVAL;
+ }
+
+ raw_cfg_len = cfg->size - 2;
+ for (i = 0; i < raw_cfg_len; i++)
+ check_sum += cfg->data[i];
+ check_sum = (~check_sum) + 1;
+ if (check_sum != cfg->data[raw_cfg_len]) {
+ dev_err(&ts->client->dev,
+ "The checksum of the config fw is not correct");
+ return -EINVAL;
+ }
+
+ if (cfg->data[raw_cfg_len + 1] != 1) {
+ dev_err(&ts->client->dev,
+ "Config fw must have Config_Fresh register set");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * goodix_send_cfg - Write fw config to device
+ *
+ * @ts: goodix_ts_data pointer
+ * @cfg: config firmware to write to device
+ */
+static int goodix_send_cfg(struct goodix_ts_data *ts,
+ const struct firmware *cfg)
+{
+ int error;
+
+ error = goodix_check_cfg(ts, cfg);
+ if (error)
+ return error;
+
+ error = goodix_i2c_write(ts->client, GOODIX_REG_CONFIG_DATA, cfg->data,
+ cfg->size);
+ if (error) {
+ dev_err(&ts->client->dev, "Failed to write config data: %d",
+ error);
+ return error;
+ }
+ dev_dbg(&ts->client->dev, "Config sent successfully.");
+
+ /* Let the firmware reconfigure itself, so sleep for 10ms */
+ usleep_range(10000, 11000);
+
+ return 0;
+}
+
+static int goodix_int_sync(struct goodix_ts_data *ts)
+{
+ int error;
+
+ error = gpiod_direction_output(ts->gpiod_int, 0);
+ if (error)
+ return error;
+
+ msleep(50); /* T5: 50ms */
+
+ error = gpiod_direction_input(ts->gpiod_int);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+/**
+ * goodix_reset - Reset device during power on
+ *
+ * @ts: goodix_ts_data pointer
+ */
+static int goodix_reset(struct goodix_ts_data *ts)
+{
+ int error;
+
+ /* begin select I2C slave addr */
+ error = gpiod_direction_output(ts->gpiod_rst, 0);
+ if (error)
+ return error;
+
+ msleep(20); /* T2: > 10ms */
+
+ /* HIGH: 0x28/0x29, LOW: 0xBA/0xBB */
+ error = gpiod_direction_output(ts->gpiod_int, ts->client->addr == 0x14);
+ if (error)
+ return error;
+
+ usleep_range(100, 2000); /* T3: > 100us */
+
+ error = gpiod_direction_output(ts->gpiod_rst, 1);
+ if (error)
+ return error;
+
+ usleep_range(6000, 10000); /* T4: > 5ms */
+
+ /* end select I2C slave addr */
+ error = gpiod_direction_input(ts->gpiod_rst);
+ if (error)
+ return error;
+
+ error = goodix_int_sync(ts);
+ if (error)
+ return error;
+
+ return 0;
+}
+
+/**
+ * goodix_get_gpio_config - Get GPIO config from ACPI/DT
+ *
+ * @ts: goodix_ts_data pointer
+ */
+static int goodix_get_gpio_config(struct goodix_ts_data *ts)
+{
+ int error;
+ struct device *dev;
+ struct gpio_desc *gpiod;
+
+ if (!ts->client)
+ return -EINVAL;
+ dev = &ts->client->dev;
+
+ /* Get the interrupt GPIO pin number */
+ gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_INT_NAME, GPIOD_IN);
+ if (IS_ERR(gpiod)) {
+ error = PTR_ERR(gpiod);
+ if (error != -EPROBE_DEFER)
+ dev_dbg(dev, "Failed to get %s GPIO: %d\n",
+ GOODIX_GPIO_INT_NAME, error);
+ return error;
+ }
+
+ ts->gpiod_int = gpiod;
+
+ /* Get the reset line GPIO pin number */
+ gpiod = devm_gpiod_get_optional(dev, GOODIX_GPIO_RST_NAME, GPIOD_IN);
+ if (IS_ERR(gpiod)) {
+ error = PTR_ERR(gpiod);
+ if (error != -EPROBE_DEFER)
+ dev_dbg(dev, "Failed to get %s GPIO: %d\n",
+ GOODIX_GPIO_RST_NAME, error);
+ return error;
+ }
+
+ ts->gpiod_rst = gpiod;
+
+ return 0;
+}
+
/**
* goodix_read_config - Read the embedded configuration of the panel
*
@@ -230,14 +485,15 @@ static void goodix_read_config(struct goodix_ts_data *ts)
int error;
error = goodix_i2c_read(ts->client, GOODIX_REG_CONFIG_DATA,
- config,
- GOODIX_CONFIG_MAX_LENGTH);
+ config, ts->cfg_len);
if (error) {
dev_warn(&ts->client->dev,
"Error reading config (%d), using defaults\n",
error);
ts->abs_x_max = GOODIX_MAX_WIDTH;
ts->abs_y_max = GOODIX_MAX_HEIGHT;
+ if (ts->swapped_x_y)
+ swap(ts->abs_x_max, ts->abs_y_max);
ts->int_trigger_type = GOODIX_INT_TRIGGER;
ts->max_touch_num = GOODIX_MAX_CONTACTS;
return;
@@ -245,6 +501,8 @@ static void goodix_read_config(struct goodix_ts_data *ts)
ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC]);
ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC + 2]);
+ if (ts->swapped_x_y)
+ swap(ts->abs_x_max, ts->abs_y_max);
ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;
ts->max_touch_num = config[MAX_CONTACTS_LOC] & 0x0f;
if (!ts->abs_x_max || !ts->abs_y_max || !ts->max_touch_num) {
@@ -252,42 +510,45 @@ static void goodix_read_config(struct goodix_ts_data *ts)
"Invalid config, using defaults\n");
ts->abs_x_max = GOODIX_MAX_WIDTH;
ts->abs_y_max = GOODIX_MAX_HEIGHT;
+ if (ts->swapped_x_y)
+ swap(ts->abs_x_max, ts->abs_y_max);
ts->max_touch_num = GOODIX_MAX_CONTACTS;
}
- ts->rotated_screen = dmi_check_system(rotated_screen);
- if (ts->rotated_screen)
+ if (dmi_check_system(rotated_screen)) {
+ ts->inverted_x = true;
+ ts->inverted_y = true;
dev_dbg(&ts->client->dev,
"Applying '180 degrees rotated screen' quirk\n");
+ }
}
/**
* goodix_read_version - Read goodix touchscreen version
*
- * @client: the i2c client
- * @version: output buffer containing the version on success
- * @id: output buffer containing the id on success
+ * @ts: our goodix_ts_data pointer
*/
-static int goodix_read_version(struct i2c_client *client, u16 *version, u16 *id)
+static int goodix_read_version(struct goodix_ts_data *ts)
{
int error;
u8 buf[6];
char id_str[5];
- error = goodix_i2c_read(client, GOODIX_REG_ID, buf, sizeof(buf));
+ error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));
if (error) {
- dev_err(&client->dev, "read version failed: %d\n", error);
+ dev_err(&ts->client->dev, "read version failed: %d\n", error);
return error;
}
memcpy(id_str, buf, 4);
id_str[4] = 0;
- if (kstrtou16(id_str, 10, id))
- *id = 0x1001;
+ if (kstrtou16(id_str, 10, &ts->id))
+ ts->id = 0x1001;
- *version = get_unaligned_le16(&buf[4]);
+ ts->version = get_unaligned_le16(&buf[4]);
- dev_info(&client->dev, "ID %d, version: %04x\n", *id, *version);
+ dev_info(&ts->client->dev, "ID %d, version: %04x\n", ts->id,
+ ts->version);
return 0;
}
@@ -321,13 +582,10 @@ static int goodix_i2c_test(struct i2c_client *client)
* goodix_request_input_dev - Allocate, populate and register the input device
*
* @ts: our goodix_ts_data pointer
- * @version: device firmware version
- * @id: device ID
*
* Must be called during probe
*/
-static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
- u16 id)
+static int goodix_request_input_dev(struct goodix_ts_data *ts)
{
int error;
@@ -351,8 +609,8 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
ts->input_dev->phys = "input/ts";
ts->input_dev->id.bustype = BUS_I2C;
ts->input_dev->id.vendor = 0x0416;
- ts->input_dev->id.product = id;
- ts->input_dev->id.version = version;
+ ts->input_dev->id.product = ts->id;
+ ts->input_dev->id.version = ts->version;
error = input_register_device(ts->input_dev);
if (error) {
@@ -364,13 +622,75 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts, u16 version,
return 0;
}
+/**
+ * goodix_configure_dev - Finish device initialization
+ *
+ * @ts: our goodix_ts_data pointer
+ *
+ * Must be called from probe to finish initialization of the device.
+ * Contains the common initialization code for both devices that
+ * declare gpio pins and devices that do not. It is either called
+ * directly from probe or from request_firmware_wait callback.
+ */
+static int goodix_configure_dev(struct goodix_ts_data *ts)
+{
+ int error;
+
+ ts->swapped_x_y = device_property_read_bool(&ts->client->dev,
+ "touchscreen-swapped-x-y");
+ ts->inverted_x = device_property_read_bool(&ts->client->dev,
+ "touchscreen-inverted-x");
+ ts->inverted_y = device_property_read_bool(&ts->client->dev,
+ "touchscreen-inverted-y");
+
+ goodix_read_config(ts);
+
+ error = goodix_request_input_dev(ts);
+ if (error)
+ return error;
+
+ ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
+ error = goodix_request_irq(ts);
+ if (error) {
+ dev_err(&ts->client->dev, "request IRQ failed: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+/**
+ * goodix_config_cb - Callback to finish device init
+ *
+ * @ts: our goodix_ts_data pointer
+ *
+ * request_firmware_wait callback that finishes
+ * initialization of the device.
+ */
+static void goodix_config_cb(const struct firmware *cfg, void *ctx)
+{
+ struct goodix_ts_data *ts = ctx;
+ int error;
+
+ if (cfg) {
+ /* send device configuration to the firmware */
+ error = goodix_send_cfg(ts, cfg);
+ if (error)
+ goto err_release_cfg;
+ }
+
+ goodix_configure_dev(ts);
+
+err_release_cfg:
+ release_firmware(cfg);
+ complete_all(&ts->firmware_loading_complete);
+}
+
static int goodix_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct goodix_ts_data *ts;
- unsigned long irq_flags;
int error;
- u16 version_info, id_info;
dev_dbg(&client->dev, "I2C Address: 0x%02x\n", client->addr);
@@ -385,6 +705,20 @@ static int goodix_ts_probe(struct i2c_client *client,
ts->client = client;
i2c_set_clientdata(client, ts);
+ init_completion(&ts->firmware_loading_complete);
+
+ error = goodix_get_gpio_config(ts);
+ if (error)
+ return error;
+
+ if (ts->gpiod_int && ts->gpiod_rst) {
+ /* reset the controller */
+ error = goodix_reset(ts);
+ if (error) {
+ dev_err(&client->dev, "Controller reset failed.\n");
+ return error;
+ }
+ }
error = goodix_i2c_test(client);
if (error) {
@@ -392,30 +726,125 @@ static int goodix_ts_probe(struct i2c_client *client,
return error;
}
- error = goodix_read_version(client, &version_info, &id_info);
+ error = goodix_read_version(ts);
if (error) {
dev_err(&client->dev, "Read version failed.\n");
return error;
}
- goodix_read_config(ts);
+ ts->cfg_len = goodix_get_cfg_len(ts->id);
+
+ if (ts->gpiod_int && ts->gpiod_rst) {
+ /* update device config */
+ ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL,
+ "goodix_%d_cfg.bin", ts->id);
+ if (!ts->cfg_name)
+ return -ENOMEM;
+
+ error = request_firmware_nowait(THIS_MODULE, true, ts->cfg_name,
+ &client->dev, GFP_KERNEL, ts,
+ goodix_config_cb);
+ if (error) {
+ dev_err(&client->dev,
+ "Failed to invoke firmware loader: %d\n",
+ error);
+ return error;
+ }
- error = goodix_request_input_dev(ts, version_info, id_info);
- if (error)
- return error;
+ return 0;
+ } else {
+ error = goodix_configure_dev(ts);
+ if (error)
+ return error;
+ }
+
+ return 0;
+}
+
+static int goodix_ts_remove(struct i2c_client *client)
+{
+ struct goodix_ts_data *ts = i2c_get_clientdata(client);
+
+ if (ts->gpiod_int && ts->gpiod_rst)
+ wait_for_completion(&ts->firmware_loading_complete);
+
+ return 0;
+}
+
+static int __maybe_unused goodix_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct goodix_ts_data *ts = i2c_get_clientdata(client);
+ int error;
- irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
- error = devm_request_threaded_irq(&ts->client->dev, client->irq,
- NULL, goodix_ts_irq_handler,
- irq_flags, client->name, ts);
+ /* We need gpio pins to suspend/resume */
+ if (!ts->gpiod_int || !ts->gpiod_rst)
+ return 0;
+
+ wait_for_completion(&ts->firmware_loading_complete);
+
+ /* Free IRQ as IRQ pin is used as output in the suspend sequence */
+ goodix_free_irq(ts);
+
+ /* Output LOW on the INT pin for 5 ms */
+ error = gpiod_direction_output(ts->gpiod_int, 0);
if (error) {
- dev_err(&client->dev, "request IRQ failed: %d\n", error);
+ goodix_request_irq(ts);
return error;
}
+ usleep_range(5000, 6000);
+
+ error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,
+ GOODIX_CMD_SCREEN_OFF);
+ if (error) {
+ dev_err(&ts->client->dev, "Screen off command failed\n");
+ gpiod_direction_input(ts->gpiod_int);
+ goodix_request_irq(ts);
+ return -EAGAIN;
+ }
+
+ /*
+ * The datasheet specifies that the interval between sending screen-off
+ * command and wake-up should be longer than 58 ms. To avoid waking up
+ * sooner, delay 58ms here.
+ */
+ msleep(58);
+ return 0;
+}
+
+static int __maybe_unused goodix_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct goodix_ts_data *ts = i2c_get_clientdata(client);
+ int error;
+
+ if (!ts->gpiod_int || !ts->gpiod_rst)
+ return 0;
+
+ /*
+ * Exit sleep mode by outputting HIGH level to INT pin
+ * for 2ms~5ms.
+ */
+ error = gpiod_direction_output(ts->gpiod_int, 1);
+ if (error)
+ return error;
+
+ usleep_range(2000, 5000);
+
+ error = goodix_int_sync(ts);
+ if (error)
+ return error;
+
+ error = goodix_request_irq(ts);
+ if (error)
+ return error;
+
return 0;
}
+static SIMPLE_DEV_PM_OPS(goodix_pm_ops, goodix_suspend, goodix_resume);
+
static const struct i2c_device_id goodix_ts_id[] = {
{ "GDIX1001:00", 0 },
{ }
@@ -446,11 +875,13 @@ MODULE_DEVICE_TABLE(of, goodix_of_match);
static struct i2c_driver goodix_ts_driver = {
.probe = goodix_ts_probe,
+ .remove = goodix_ts_remove,
.id_table = goodix_ts_id,
.driver = {
.name = "Goodix-TS",
.acpi_match_table = ACPI_PTR(goodix_acpi_match),
.of_match_table = of_match_ptr(goodix_of_match),
+ .pm = &goodix_pm_ops,
},
};
module_i2c_driver(goodix_ts_driver);
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index 23a354a392ae..0e3fc419a3cf 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -87,7 +87,7 @@ static void pcap_ts_read_xy(void *data, u16 res[2])
static void pcap_ts_work(struct work_struct *work)
{
- struct delayed_work *dw = container_of(work, struct delayed_work, work);
+ struct delayed_work *dw = to_delayed_work(work);
struct pcap_ts *pcap_ts = container_of(dw, struct pcap_ts, work);
u8 ch[2];
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
index 4b961ad9f0b5..09523a3d3f23 100644
--- a/drivers/input/touchscreen/pixcir_i2c_ts.c
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -38,6 +38,8 @@ struct pixcir_i2c_ts_data {
struct input_dev *input;
struct gpio_desc *gpio_attb;
struct gpio_desc *gpio_reset;
+ struct gpio_desc *gpio_enable;
+ struct gpio_desc *gpio_wake;
const struct pixcir_i2c_chip_data *chip;
int max_fingers; /* Max fingers supported in this instance */
bool running;
@@ -208,6 +210,11 @@ static int pixcir_set_power_mode(struct pixcir_i2c_ts_data *ts,
struct device *dev = &ts->client->dev;
int ret;
+ if (mode == PIXCIR_POWER_ACTIVE || mode == PIXCIR_POWER_IDLE) {
+ if (ts->gpio_wake)
+ gpiod_set_value_cansleep(ts->gpio_wake, 1);
+ }
+
ret = i2c_smbus_read_byte_data(ts->client, PIXCIR_REG_POWER_MODE);
if (ret < 0) {
dev_err(dev, "%s: can't read reg 0x%x : %d\n",
@@ -228,6 +235,11 @@ static int pixcir_set_power_mode(struct pixcir_i2c_ts_data *ts,
return ret;
}
+ if (mode == PIXCIR_POWER_HALT) {
+ if (ts->gpio_wake)
+ gpiod_set_value_cansleep(ts->gpio_wake, 0);
+ }
+
return 0;
}
@@ -302,6 +314,11 @@ static int pixcir_start(struct pixcir_i2c_ts_data *ts)
struct device *dev = &ts->client->dev;
int error;
+ if (ts->gpio_enable) {
+ gpiod_set_value_cansleep(ts->gpio_enable, 1);
+ msleep(100);
+ }
+
/* LEVEL_TOUCH interrupt with active low polarity */
error = pixcir_set_int_mode(ts, PIXCIR_INT_LEVEL_TOUCH, 0);
if (error) {
@@ -343,6 +360,9 @@ static int pixcir_stop(struct pixcir_i2c_ts_data *ts)
/* Wait till running ISR is complete */
synchronize_irq(ts->client->irq);
+ if (ts->gpio_enable)
+ gpiod_set_value_cansleep(ts->gpio_enable, 0);
+
return 0;
}
@@ -534,6 +554,27 @@ static int pixcir_i2c_ts_probe(struct i2c_client *client,
return error;
}
+ tsdata->gpio_wake = devm_gpiod_get_optional(dev, "wake",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(tsdata->gpio_wake)) {
+ error = PTR_ERR(tsdata->gpio_wake);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get wake gpio: %d\n", error);
+ return error;
+ }
+
+ tsdata->gpio_enable = devm_gpiod_get_optional(dev, "enable",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(tsdata->gpio_enable)) {
+ error = PTR_ERR(tsdata->gpio_enable);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get enable gpio: %d\n", error);
+ return error;
+ }
+
+ if (tsdata->gpio_enable)
+ msleep(100);
+
error = devm_request_threaded_irq(dev, client->irq, NULL, pixcir_ts_isr,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
client->name, tsdata);
diff --git a/drivers/input/touchscreen/rohm_bu21023.c b/drivers/input/touchscreen/rohm_bu21023.c
index ba6024f93469..611156a2ef80 100644
--- a/drivers/input/touchscreen/rohm_bu21023.c
+++ b/drivers/input/touchscreen/rohm_bu21023.c
@@ -725,7 +725,7 @@ static int rohm_ts_load_firmware(struct i2c_client *client,
break;
error = -EIO;
- } while (++retry >= FIRMWARE_RETRY_MAX);
+ } while (++retry <= FIRMWARE_RETRY_MAX);
out:
error2 = i2c_smbus_write_byte_data(client, INT_MASK, INT_ALL);
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 191a1b87895f..a21a07c3ab6d 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -273,8 +273,6 @@ static irqreturn_t titsc_irq(int irq, void *dev)
status = titsc_readl(ts_dev, REG_RAWIRQSTATUS);
if (status & IRQENB_HW_PEN) {
ts_dev->pen_down = true;
- titsc_writel(ts_dev, REG_IRQWAKEUP, 0x00);
- titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN);
irqclr |= IRQENB_HW_PEN;
}
diff --git a/drivers/input/touchscreen/ts4800-ts.c b/drivers/input/touchscreen/ts4800-ts.c
new file mode 100644
index 000000000000..3c3dd78303be
--- /dev/null
+++ b/drivers/input/touchscreen/ts4800-ts.c
@@ -0,0 +1,216 @@
+/*
+ * Touchscreen driver for the TS-4800 board
+ *
+ * Copyright (c) 2015 - Savoir-faire Linux
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/bitops.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+/* polling interval in ms */
+#define POLL_INTERVAL 3
+
+#define DEBOUNCE_COUNT 1
+
+/* sensor values are 12-bit wide */
+#define MAX_12BIT ((1 << 12) - 1)
+
+#define PENDOWN_MASK 0x1
+
+#define X_OFFSET 0x0
+#define Y_OFFSET 0x2
+
+struct ts4800_ts {
+ struct input_polled_dev *poll_dev;
+ struct device *dev;
+ char phys[32];
+
+ void __iomem *base;
+ struct regmap *regmap;
+ unsigned int reg;
+ unsigned int bit;
+
+ bool pendown;
+ int debounce;
+};
+
+static void ts4800_ts_open(struct input_polled_dev *dev)
+{
+ struct ts4800_ts *ts = dev->private;
+ int ret;
+
+ ts->pendown = false;
+ ts->debounce = DEBOUNCE_COUNT;
+
+ ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, ts->bit);
+ if (ret)
+ dev_warn(ts->dev, "Failed to enable touchscreen\n");
+}
+
+static void ts4800_ts_close(struct input_polled_dev *dev)
+{
+ struct ts4800_ts *ts = dev->private;
+ int ret;
+
+ ret = regmap_update_bits(ts->regmap, ts->reg, ts->bit, 0);
+ if (ret)
+ dev_warn(ts->dev, "Failed to disable touchscreen\n");
+
+}
+
+static void ts4800_ts_poll(struct input_polled_dev *dev)
+{
+ struct input_dev *input_dev = dev->input;
+ struct ts4800_ts *ts = dev->private;
+ u16 last_x = readw(ts->base + X_OFFSET);
+ u16 last_y = readw(ts->base + Y_OFFSET);
+ bool pendown = last_x & PENDOWN_MASK;
+
+ if (pendown) {
+ if (ts->debounce) {
+ ts->debounce--;
+ return;
+ }
+
+ if (!ts->pendown) {
+ input_report_key(input_dev, BTN_TOUCH, 1);
+ ts->pendown = true;
+ }
+
+ last_x = ((~last_x) >> 4) & MAX_12BIT;
+ last_y = ((~last_y) >> 4) & MAX_12BIT;
+
+ input_report_abs(input_dev, ABS_X, last_x);
+ input_report_abs(input_dev, ABS_Y, last_y);
+ input_sync(input_dev);
+ } else if (ts->pendown) {
+ ts->pendown = false;
+ ts->debounce = DEBOUNCE_COUNT;
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ input_sync(input_dev);
+ }
+}
+
+static int ts4800_parse_dt(struct platform_device *pdev,
+ struct ts4800_ts *ts)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *syscon_np;
+ u32 reg, bit;
+ int error;
+
+ syscon_np = of_parse_phandle(np, "syscon", 0);
+ if (!syscon_np) {
+ dev_err(dev, "no syscon property\n");
+ return -ENODEV;
+ }
+
+ error = of_property_read_u32_index(np, "syscon", 1, &reg);
+ if (error < 0) {
+ dev_err(dev, "no offset in syscon\n");
+ return error;
+ }
+
+ ts->reg = reg;
+
+ error = of_property_read_u32_index(np, "syscon", 2, &bit);
+ if (error < 0) {
+ dev_err(dev, "no bit in syscon\n");
+ return error;
+ }
+
+ ts->bit = BIT(bit);
+
+ ts->regmap = syscon_node_to_regmap(syscon_np);
+ if (IS_ERR(ts->regmap)) {
+ dev_err(dev, "cannot get parent's regmap\n");
+ return PTR_ERR(ts->regmap);
+ }
+
+ return 0;
+}
+
+static int ts4800_ts_probe(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev;
+ struct ts4800_ts *ts;
+ struct resource *res;
+ int error;
+
+ ts = devm_kzalloc(&pdev->dev, sizeof(*ts), GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
+
+ error = ts4800_parse_dt(pdev, ts);
+ if (error)
+ return error;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ts->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ts->base))
+ return PTR_ERR(ts->base);
+
+ poll_dev = devm_input_allocate_polled_device(&pdev->dev);
+ if (!poll_dev)
+ return -ENOMEM;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&pdev->dev));
+ ts->poll_dev = poll_dev;
+ ts->dev = &pdev->dev;
+
+ poll_dev->private = ts;
+ poll_dev->poll_interval = POLL_INTERVAL;
+ poll_dev->open = ts4800_ts_open;
+ poll_dev->close = ts4800_ts_close;
+ poll_dev->poll = ts4800_ts_poll;
+
+ poll_dev->input->name = "TS-4800 Touchscreen";
+ poll_dev->input->phys = ts->phys;
+
+ input_set_capability(poll_dev->input, EV_KEY, BTN_TOUCH);
+ input_set_abs_params(poll_dev->input, ABS_X, 0, MAX_12BIT, 0, 0);
+ input_set_abs_params(poll_dev->input, ABS_Y, 0, MAX_12BIT, 0, 0);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(&pdev->dev,
+ "Unabled to register polled input device (%d)\n",
+ error);
+ return error;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id ts4800_ts_of_match[] = {
+ { .compatible = "technologic,ts4800-ts", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ts4800_ts_of_match);
+
+static struct platform_driver ts4800_ts_driver = {
+ .driver = {
+ .name = "ts4800-ts",
+ .of_match_table = ts4800_ts_of_match,
+ },
+ .probe = ts4800_ts_probe,
+};
+module_platform_driver(ts4800_ts_driver);
+
+MODULE_AUTHOR("Damien Riegel <damien.riegel@savoirfairelinux.com>");
+MODULE_DESCRIPTION("TS-4800 Touchscreen Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:ts4800_ts");
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 2792ca397dd0..bab3c6acf6a2 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -80,7 +80,8 @@ struct w8001_touch_query {
*/
struct w8001 {
- struct input_dev *dev;
+ struct input_dev *pen_dev;
+ struct input_dev *touch_dev;
struct serio *serio;
struct completion cmd_done;
int id;
@@ -95,7 +96,10 @@ struct w8001 {
u16 max_touch_y;
u16 max_pen_x;
u16 max_pen_y;
- char name[64];
+ char pen_name[64];
+ char touch_name[64];
+ int open_count;
+ struct mutex mutex;
};
static void parse_pen_data(u8 *data, struct w8001_coord *coord)
@@ -141,7 +145,7 @@ static void scale_touch_coordinates(struct w8001 *w8001,
static void parse_multi_touch(struct w8001 *w8001)
{
- struct input_dev *dev = w8001->dev;
+ struct input_dev *dev = w8001->touch_dev;
unsigned char *data = w8001->data;
unsigned int x, y;
int i;
@@ -151,7 +155,6 @@ static void parse_multi_touch(struct w8001 *w8001)
bool touch = data[0] & (1 << i);
input_mt_slot(dev, i);
- input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch);
if (touch) {
x = (data[6 * i + 1] << 7) | data[6 * i + 2];
y = (data[6 * i + 3] << 7) | data[6 * i + 4];
@@ -207,7 +210,7 @@ static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
{
- struct input_dev *dev = w8001->dev;
+ struct input_dev *dev = w8001->pen_dev;
/*
* We have 1 bit for proximity (rdy) and 3 bits for tip, side,
@@ -233,11 +236,6 @@ static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
break;
case BTN_TOOL_FINGER:
- input_report_key(dev, BTN_TOUCH, 0);
- input_report_key(dev, BTN_TOOL_FINGER, 0);
- input_sync(dev);
- /* fall through */
-
case KEY_RESERVED:
w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
break;
@@ -261,7 +259,7 @@ static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord)
{
- struct input_dev *dev = w8001->dev;
+ struct input_dev *dev = w8001->touch_dev;
unsigned int x = coord->x;
unsigned int y = coord->y;
@@ -271,7 +269,6 @@ static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord)
input_report_abs(dev, ABS_X, x);
input_report_abs(dev, ABS_Y, y);
input_report_key(dev, BTN_TOUCH, coord->tsw);
- input_report_key(dev, BTN_TOOL_FINGER, coord->tsw);
input_sync(dev);
@@ -369,22 +366,36 @@ static int w8001_command(struct w8001 *w8001, unsigned char command,
static int w8001_open(struct input_dev *dev)
{
struct w8001 *w8001 = input_get_drvdata(dev);
+ int err;
- return w8001_command(w8001, W8001_CMD_START, false);
+ err = mutex_lock_interruptible(&w8001->mutex);
+ if (err)
+ return err;
+
+ if (w8001->open_count++ == 0) {
+ err = w8001_command(w8001, W8001_CMD_START, false);
+ if (err)
+ w8001->open_count--;
+ }
+
+ mutex_unlock(&w8001->mutex);
+ return err;
}
static void w8001_close(struct input_dev *dev)
{
struct w8001 *w8001 = input_get_drvdata(dev);
- w8001_command(w8001, W8001_CMD_STOP, false);
+ mutex_lock(&w8001->mutex);
+
+ if (--w8001->open_count == 0)
+ w8001_command(w8001, W8001_CMD_STOP, false);
+
+ mutex_unlock(&w8001->mutex);
}
-static int w8001_setup(struct w8001 *w8001)
+static int w8001_detect(struct w8001 *w8001)
{
- struct input_dev *dev = w8001->dev;
- struct w8001_coord coord;
- struct w8001_touch_query touch;
int error;
error = w8001_command(w8001, W8001_CMD_STOP, false);
@@ -393,105 +404,145 @@ static int w8001_setup(struct w8001 *w8001)
msleep(250); /* wait 250ms before querying the device */
- dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
- strlcat(w8001->name, "Wacom Serial", sizeof(w8001->name));
+ return 0;
+}
- __set_bit(INPUT_PROP_DIRECT, dev->propbit);
+static int w8001_setup_pen(struct w8001 *w8001, char *basename,
+ size_t basename_sz)
+{
+ struct input_dev *dev = w8001->pen_dev;
+ struct w8001_coord coord;
+ int error;
/* penabled? */
error = w8001_command(w8001, W8001_CMD_QUERY, true);
- if (!error) {
- __set_bit(BTN_TOUCH, dev->keybit);
- __set_bit(BTN_TOOL_PEN, dev->keybit);
- __set_bit(BTN_TOOL_RUBBER, dev->keybit);
- __set_bit(BTN_STYLUS, dev->keybit);
- __set_bit(BTN_STYLUS2, dev->keybit);
-
- parse_pen_data(w8001->response, &coord);
- w8001->max_pen_x = coord.x;
- w8001->max_pen_y = coord.y;
-
- input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
- input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
- input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
- input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
- input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
- if (coord.tilt_x && coord.tilt_y) {
- input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
- input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
- }
- w8001->id = 0x90;
- strlcat(w8001->name, " Penabled", sizeof(w8001->name));
+ if (error)
+ return error;
+
+ __set_bit(EV_KEY, dev->evbit);
+ __set_bit(EV_ABS, dev->evbit);
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(BTN_TOOL_PEN, dev->keybit);
+ __set_bit(BTN_TOOL_RUBBER, dev->keybit);
+ __set_bit(BTN_STYLUS, dev->keybit);
+ __set_bit(BTN_STYLUS2, dev->keybit);
+ __set_bit(INPUT_PROP_DIRECT, dev->propbit);
+
+ parse_pen_data(w8001->response, &coord);
+ w8001->max_pen_x = coord.x;
+ w8001->max_pen_y = coord.y;
+
+ input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
+ input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
+ input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
+ input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
+ if (coord.tilt_x && coord.tilt_y) {
+ input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
+ input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
}
+ w8001->id = 0x90;
+ strlcat(basename, " Penabled", basename_sz);
+
+ return 0;
+}
+
+static int w8001_setup_touch(struct w8001 *w8001, char *basename,
+ size_t basename_sz)
+{
+ struct input_dev *dev = w8001->touch_dev;
+ struct w8001_touch_query touch;
+ int error;
+
+
/* Touch enabled? */
error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);
-
+ if (error)
+ return error;
/*
* Some non-touch devices may reply to the touch query. But their
* second byte is empty, which indicates touch is not supported.
*/
- if (!error && w8001->response[1]) {
- __set_bit(BTN_TOUCH, dev->keybit);
- __set_bit(BTN_TOOL_FINGER, dev->keybit);
-
- parse_touchquery(w8001->response, &touch);
- w8001->max_touch_x = touch.x;
- w8001->max_touch_y = touch.y;
-
- if (w8001->max_pen_x && w8001->max_pen_y) {
- /* if pen is supported scale to pen maximum */
- touch.x = w8001->max_pen_x;
- touch.y = w8001->max_pen_y;
- touch.panel_res = W8001_PEN_RESOLUTION;
- }
+ if (!w8001->response[1])
+ return -ENXIO;
- input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
- input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
- input_abs_set_res(dev, ABS_X, touch.panel_res);
- input_abs_set_res(dev, ABS_Y, touch.panel_res);
-
- switch (touch.sensor_id) {
- case 0:
- case 2:
- w8001->pktlen = W8001_PKTLEN_TOUCH93;
- w8001->id = 0x93;
- strlcat(w8001->name, " 1FG", sizeof(w8001->name));
- break;
+ __set_bit(EV_KEY, dev->evbit);
+ __set_bit(EV_ABS, dev->evbit);
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(INPUT_PROP_DIRECT, dev->propbit);
- case 1:
- case 3:
- case 4:
- w8001->pktlen = W8001_PKTLEN_TOUCH9A;
- strlcat(w8001->name, " 1FG", sizeof(w8001->name));
- w8001->id = 0x9a;
- break;
+ parse_touchquery(w8001->response, &touch);
+ w8001->max_touch_x = touch.x;
+ w8001->max_touch_y = touch.y;
- case 5:
- w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
-
- input_mt_init_slots(dev, 2, 0);
- input_set_abs_params(dev, ABS_MT_POSITION_X,
- 0, touch.x, 0, 0);
- input_set_abs_params(dev, ABS_MT_POSITION_Y,
- 0, touch.y, 0, 0);
- input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
- 0, MT_TOOL_MAX, 0, 0);
-
- strlcat(w8001->name, " 2FG", sizeof(w8001->name));
- if (w8001->max_pen_x && w8001->max_pen_y)
- w8001->id = 0xE3;
- else
- w8001->id = 0xE2;
- break;
- }
+ if (w8001->max_pen_x && w8001->max_pen_y) {
+ /* if pen is supported scale to pen maximum */
+ touch.x = w8001->max_pen_x;
+ touch.y = w8001->max_pen_y;
+ touch.panel_res = W8001_PEN_RESOLUTION;
+ }
+
+ input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
+ input_abs_set_res(dev, ABS_X, touch.panel_res);
+ input_abs_set_res(dev, ABS_Y, touch.panel_res);
+
+ switch (touch.sensor_id) {
+ case 0:
+ case 2:
+ w8001->pktlen = W8001_PKTLEN_TOUCH93;
+ w8001->id = 0x93;
+ strlcat(basename, " 1FG", basename_sz);
+ break;
+
+ case 1:
+ case 3:
+ case 4:
+ w8001->pktlen = W8001_PKTLEN_TOUCH9A;
+ strlcat(basename, " 1FG", basename_sz);
+ w8001->id = 0x9a;
+ break;
+
+ case 5:
+ w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
+
+ __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+ input_mt_init_slots(dev, 2, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_X,
+ 0, touch.x, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y,
+ 0, touch.y, 0, 0);
+
+ strlcat(basename, " 2FG", basename_sz);
+ if (w8001->max_pen_x && w8001->max_pen_y)
+ w8001->id = 0xE3;
+ else
+ w8001->id = 0xE2;
+ break;
}
- strlcat(w8001->name, " Touchscreen", sizeof(w8001->name));
+ strlcat(basename, " Touchscreen", basename_sz);
return 0;
}
+static void w8001_set_devdata(struct input_dev *dev, struct w8001 *w8001,
+ struct serio *serio)
+{
+ dev->phys = w8001->phys;
+ dev->id.bustype = BUS_RS232;
+ dev->id.product = w8001->id;
+ dev->id.vendor = 0x056a;
+ dev->id.version = 0x0100;
+ dev->open = w8001_open;
+ dev->close = w8001_close;
+
+ dev->dev.parent = &serio->dev;
+
+ input_set_drvdata(dev, w8001);
+}
+
/*
* w8001_disconnect() is the opposite of w8001_connect()
*/
@@ -502,7 +553,10 @@ static void w8001_disconnect(struct serio *serio)
serio_close(serio);
- input_unregister_device(w8001->dev);
+ if (w8001->pen_dev)
+ input_unregister_device(w8001->pen_dev);
+ if (w8001->touch_dev)
+ input_unregister_device(w8001->touch_dev);
kfree(w8001);
serio_set_drvdata(serio, NULL);
@@ -517,18 +571,23 @@ static void w8001_disconnect(struct serio *serio)
static int w8001_connect(struct serio *serio, struct serio_driver *drv)
{
struct w8001 *w8001;
- struct input_dev *input_dev;
- int err;
+ struct input_dev *input_dev_pen;
+ struct input_dev *input_dev_touch;
+ char basename[64];
+ int err, err_pen, err_touch;
w8001 = kzalloc(sizeof(struct w8001), GFP_KERNEL);
- input_dev = input_allocate_device();
- if (!w8001 || !input_dev) {
+ input_dev_pen = input_allocate_device();
+ input_dev_touch = input_allocate_device();
+ if (!w8001 || !input_dev_pen || !input_dev_touch) {
err = -ENOMEM;
goto fail1;
}
w8001->serio = serio;
- w8001->dev = input_dev;
+ w8001->pen_dev = input_dev_pen;
+ w8001->touch_dev = input_dev_touch;
+ mutex_init(&w8001->mutex);
init_completion(&w8001->cmd_done);
snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys);
@@ -537,35 +596,67 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
if (err)
goto fail2;
- err = w8001_setup(w8001);
+ err = w8001_detect(w8001);
if (err)
goto fail3;
- input_dev->name = w8001->name;
- input_dev->phys = w8001->phys;
- input_dev->id.product = w8001->id;
- input_dev->id.bustype = BUS_RS232;
- input_dev->id.vendor = 0x056a;
- input_dev->id.version = 0x0100;
- input_dev->dev.parent = &serio->dev;
+ /* For backwards-compatibility we compose the basename based on
+ * capabilities and then just append the tool type
+ */
+ strlcpy(basename, "Wacom Serial", sizeof(basename));
+
+ err_pen = w8001_setup_pen(w8001, basename, sizeof(basename));
+ err_touch = w8001_setup_touch(w8001, basename, sizeof(basename));
+ if (err_pen && err_touch) {
+ err = -ENXIO;
+ goto fail3;
+ }
+
+ if (!err_pen) {
+ strlcpy(w8001->pen_name, basename, sizeof(w8001->pen_name));
+ strlcat(w8001->pen_name, " Pen", sizeof(w8001->pen_name));
+ input_dev_pen->name = w8001->pen_name;
- input_dev->open = w8001_open;
- input_dev->close = w8001_close;
+ w8001_set_devdata(input_dev_pen, w8001, serio);
- input_set_drvdata(input_dev, w8001);
+ err = input_register_device(w8001->pen_dev);
+ if (err)
+ goto fail3;
+ } else {
+ input_free_device(input_dev_pen);
+ input_dev_pen = NULL;
+ w8001->pen_dev = NULL;
+ }
- err = input_register_device(w8001->dev);
- if (err)
- goto fail3;
+ if (!err_touch) {
+ strlcpy(w8001->touch_name, basename, sizeof(w8001->touch_name));
+ strlcat(w8001->touch_name, " Finger",
+ sizeof(w8001->touch_name));
+ input_dev_touch->name = w8001->touch_name;
+
+ w8001_set_devdata(input_dev_touch, w8001, serio);
+
+ err = input_register_device(w8001->touch_dev);
+ if (err)
+ goto fail4;
+ } else {
+ input_free_device(input_dev_touch);
+ input_dev_touch = NULL;
+ w8001->touch_dev = NULL;
+ }
return 0;
+fail4:
+ if (w8001->pen_dev)
+ input_unregister_device(w8001->pen_dev);
fail3:
serio_close(serio);
fail2:
serio_set_drvdata(serio, NULL);
fail1:
- input_free_device(input_dev);
+ input_free_device(input_dev_pen);
+ input_free_device(input_dev_touch);
kfree(w8001);
return err;
}