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-rw-r--r--drivers/input/misc/apanel.c81
-rw-r--r--drivers/input/misc/pcspkr.c4
-rw-r--r--drivers/input/misc/uinput.c172
3 files changed, 174 insertions, 83 deletions
diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c
index d82f7f727f7a..71b82434264d 100644
--- a/drivers/input/misc/apanel.c
+++ b/drivers/input/misc/apanel.c
@@ -57,7 +57,7 @@ static enum apanel_chip device_chip[APANEL_DEV_MAX];
struct apanel {
struct input_polled_dev *ipdev;
- struct i2c_client client;
+ struct i2c_client *client;
unsigned short keymap[MAX_PANEL_KEYS];
u16 nkeys;
u16 led_bits;
@@ -66,16 +66,7 @@ struct apanel {
};
-static int apanel_probe(struct i2c_adapter *, int, int);
-
-/* for now, we only support one address */
-static unsigned short normal_i2c[] = {0, I2C_CLIENT_END};
-static unsigned short ignore = I2C_CLIENT_END;
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .probe = &ignore,
- .ignore = &ignore,
-};
+static int apanel_probe(struct i2c_client *, const struct i2c_device_id *);
static void report_key(struct input_dev *input, unsigned keycode)
{
@@ -103,12 +94,12 @@ static void apanel_poll(struct input_polled_dev *ipdev)
s32 data;
int i;
- data = i2c_smbus_read_word_data(&ap->client, cmd);
+ data = i2c_smbus_read_word_data(ap->client, cmd);
if (data < 0)
return; /* ignore errors (due to ACPI??) */
/* write back to clear latch */
- i2c_smbus_write_word_data(&ap->client, cmd, 0);
+ i2c_smbus_write_word_data(ap->client, cmd, 0);
if (!data)
return;
@@ -124,7 +115,7 @@ static void led_update(struct work_struct *work)
{
struct apanel *ap = container_of(work, struct apanel, led_work);
- i2c_smbus_write_word_data(&ap->client, 0x10, ap->led_bits);
+ i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
}
static void mail_led_set(struct led_classdev *led,
@@ -140,7 +131,7 @@ static void mail_led_set(struct led_classdev *led,
schedule_work(&ap->led_work);
}
-static int apanel_detach_client(struct i2c_client *client)
+static int apanel_remove(struct i2c_client *client)
{
struct apanel *ap = i2c_get_clientdata(client);
@@ -148,43 +139,33 @@ static int apanel_detach_client(struct i2c_client *client)
led_classdev_unregister(&ap->mail_led);
input_unregister_polled_device(ap->ipdev);
- i2c_detach_client(&ap->client);
input_free_polled_device(ap->ipdev);
return 0;
}
-/* Function is invoked for every i2c adapter. */
-static int apanel_attach_adapter(struct i2c_adapter *adap)
-{
- dev_dbg(&adap->dev, APANEL ": attach adapter id=%d\n", adap->id);
-
- /* Our device is connected only to i801 on laptop */
- if (adap->id != I2C_HW_SMBUS_I801)
- return -ENODEV;
-
- return i2c_probe(adap, &addr_data, apanel_probe);
-}
-
static void apanel_shutdown(struct i2c_client *client)
{
- apanel_detach_client(client);
+ apanel_remove(client);
}
+static struct i2c_device_id apanel_id[] = {
+ { "fujitsu_apanel", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, apanel_id);
+
static struct i2c_driver apanel_driver = {
.driver = {
.name = APANEL,
},
- .attach_adapter = &apanel_attach_adapter,
- .detach_client = &apanel_detach_client,
+ .probe = &apanel_probe,
+ .remove = &apanel_remove,
.shutdown = &apanel_shutdown,
+ .id_table = apanel_id,
};
static struct apanel apanel = {
- .client = {
- .driver = &apanel_driver,
- .name = APANEL,
- },
.keymap = {
[0] = KEY_MAIL,
[1] = KEY_WWW,
@@ -204,7 +185,8 @@ static struct apanel apanel = {
};
/* NB: Only one panel on the i2c. */
-static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
+static int apanel_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
struct apanel *ap;
struct input_polled_dev *ipdev;
@@ -212,9 +194,6 @@ static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
int i, err = -ENOMEM;
- dev_dbg(&bus->dev, APANEL ": probe adapter %p addr %d kind %d\n",
- bus, address, kind);
-
ap = &apanel;
ipdev = input_allocate_polled_device();
@@ -222,18 +201,13 @@ static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
goto out1;
ap->ipdev = ipdev;
- ap->client.adapter = bus;
- ap->client.addr = address;
-
- i2c_set_clientdata(&ap->client, ap);
+ ap->client = client;
- err = i2c_attach_client(&ap->client);
- if (err)
- goto out2;
+ i2c_set_clientdata(client, ap);
- err = i2c_smbus_write_word_data(&ap->client, cmd, 0);
+ err = i2c_smbus_write_word_data(client, cmd, 0);
if (err) {
- dev_warn(&ap->client.dev, APANEL ": smbus write error %d\n",
+ dev_warn(&client->dev, APANEL ": smbus write error %d\n",
err);
goto out3;
}
@@ -246,7 +220,7 @@ static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
idev->name = APANEL_NAME " buttons";
idev->phys = "apanel/input0";
idev->id.bustype = BUS_HOST;
- idev->dev.parent = &ap->client.dev;
+ idev->dev.parent = &client->dev;
set_bit(EV_KEY, idev->evbit);
@@ -264,7 +238,7 @@ static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
INIT_WORK(&ap->led_work, led_update);
if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
- err = led_classdev_register(&ap->client.dev, &ap->mail_led);
+ err = led_classdev_register(&client->dev, &ap->mail_led);
if (err)
goto out4;
}
@@ -273,8 +247,6 @@ static int apanel_probe(struct i2c_adapter *bus, int address, int kind)
out4:
input_unregister_polled_device(ipdev);
out3:
- i2c_detach_client(&ap->client);
-out2:
input_free_polled_device(ipdev);
out1:
return err;
@@ -301,6 +273,7 @@ static int __init apanel_init(void)
void __iomem *bios;
const void __iomem *p;
u8 devno;
+ unsigned char i2c_addr;
int found = 0;
bios = ioremap(0xF0000, 0x10000); /* Can't fail */
@@ -313,7 +286,7 @@ static int __init apanel_init(void)
/* just use the first address */
p += 8;
- normal_i2c[0] = readb(p+3) >> 1;
+ i2c_addr = readb(p + 3) >> 1;
for ( ; (devno = readb(p)) & 0x7f; p += 4) {
unsigned char method, slave, chip;
@@ -322,7 +295,7 @@ static int __init apanel_init(void)
chip = readb(p + 2);
slave = readb(p + 3) >> 1;
- if (slave != normal_i2c[0]) {
+ if (slave != i2c_addr) {
pr_notice(APANEL ": only one SMBus slave "
"address supported, skiping device...\n");
continue;
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 43aaa5cebd12..d6a30cee7bc7 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -52,13 +52,13 @@ static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int c
spin_lock_irqsave(&i8253_lock, flags);
if (count) {
- /* enable counter 2 */
- outb_p(inb_p(0x61) | 3, 0x61);
/* set command for counter 2, 2 byte write */
outb_p(0xB6, 0x43);
/* select desired HZ */
outb_p(count & 0xff, 0x42);
outb((count >> 8) & 0xff, 0x42);
+ /* enable counter 2 */
+ outb_p(inb_p(0x61) | 3, 0x61);
} else {
/* disable counter 2 */
outb(inb_p(0x61) & 0xFC, 0x61);
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 223d56d5555b..46b7caeb2817 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -37,6 +37,7 @@
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <linux/uinput.h>
+#include "../input-compat.h"
static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
@@ -78,6 +79,7 @@ static struct uinput_request* uinput_request_find(struct uinput_device *udev, in
/* Find an input request, by ID. Returns NULL if the ID isn't valid. */
if (id >= UINPUT_NUM_REQUESTS || id < 0)
return NULL;
+
return udev->requests[id];
}
@@ -127,6 +129,17 @@ static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *eff
struct uinput_request request;
int retval;
+ /*
+ * uinput driver does not currently support periodic effects with
+ * custom waveform since it does not have a way to pass buffer of
+ * samples (custom_data) to userspace. If ever there is a device
+ * supporting custom waveforms we would need to define an additional
+ * ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
+ */
+ if (effect->type == FF_PERIODIC &&
+ effect->u.periodic.waveform == FF_CUSTOM)
+ return -EINVAL;
+
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
@@ -353,15 +366,15 @@ static inline ssize_t uinput_inject_event(struct uinput_device *udev, const char
{
struct input_event ev;
- if (count != sizeof(struct input_event))
+ if (count < input_event_size())
return -EINVAL;
- if (copy_from_user(&ev, buffer, sizeof(struct input_event)))
+ if (input_event_from_user(buffer, &ev))
return -EFAULT;
input_event(udev->dev, ev.type, ev.code, ev.value);
- return sizeof(struct input_event);
+ return input_event_size();
}
static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
@@ -407,13 +420,13 @@ static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count,
goto out;
}
- while (udev->head != udev->tail && retval + sizeof(struct input_event) <= count) {
- if (copy_to_user(buffer + retval, &udev->buff[udev->tail], sizeof(struct input_event))) {
+ while (udev->head != udev->tail && retval + input_event_size() <= count) {
+ if (input_event_to_user(buffer + retval, &udev->buff[udev->tail])) {
retval = -EFAULT;
goto out;
}
udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
- retval += sizeof(struct input_event);
+ retval += input_event_size();
}
out:
@@ -444,6 +457,93 @@ static int uinput_release(struct inode *inode, struct file *file)
return 0;
}
+#ifdef CONFIG_COMPAT
+struct uinput_ff_upload_compat {
+ int request_id;
+ int retval;
+ struct ff_effect_compat effect;
+ struct ff_effect_compat old;
+};
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ ff_up_compat.request_id = ff_up->request_id;
+ ff_up_compat.retval = ff_up->retval;
+ /*
+ * It so happens that the pointer that gives us the trouble
+ * is the last field in the structure. Since we don't support
+ * custom waveforms in uinput anyway we can just copy the whole
+ * thing (to the compat size) and ignore the pointer.
+ */
+ memcpy(&ff_up_compat.effect, &ff_up->effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up_compat.old, &ff_up->old,
+ sizeof(struct ff_effect_compat));
+
+ if (copy_to_user(buffer, &ff_up_compat,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+ } else {
+ if (copy_to_user(buffer, ff_up,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ if (copy_from_user(&ff_up_compat, buffer,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+
+ ff_up->request_id = ff_up_compat.request_id;
+ ff_up->retval = ff_up_compat.retval;
+ memcpy(&ff_up->effect, &ff_up_compat.effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up->old, &ff_up_compat.old,
+ sizeof(struct ff_effect_compat));
+
+ } else {
+ if (copy_from_user(ff_up, buffer,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+#else
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (copy_to_user(buffer, ff_up, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (copy_from_user(ff_up, buffer, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+#endif
+
#define uinput_set_bit(_arg, _bit, _max) \
({ \
int __ret = 0; \
@@ -455,19 +555,17 @@ static int uinput_release(struct inode *inode, struct file *file)
__ret; \
})
-static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ unsigned long arg, void __user *p)
{
int retval;
- struct uinput_device *udev;
- void __user *p = (void __user *)arg;
+ struct uinput_device *udev = file->private_data;
struct uinput_ff_upload ff_up;
struct uinput_ff_erase ff_erase;
struct uinput_request *req;
int length;
char *phys;
- udev = file->private_data;
-
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
@@ -549,26 +647,24 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
case UI_BEGIN_FF_UPLOAD:
- if (copy_from_user(&ff_up, p, sizeof(ff_up))) {
- retval = -EFAULT;
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
break;
- }
+
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
+ if (!req || req->code != UI_FF_UPLOAD || !req->u.upload.effect) {
retval = -EINVAL;
break;
}
+
ff_up.retval = 0;
- memcpy(&ff_up.effect, req->u.upload.effect, sizeof(struct ff_effect));
+ ff_up.effect = *req->u.upload.effect;
if (req->u.upload.old)
- memcpy(&ff_up.old, req->u.upload.old, sizeof(struct ff_effect));
+ ff_up.old = *req->u.upload.old;
else
memset(&ff_up.old, 0, sizeof(struct ff_effect));
- if (copy_to_user(p, &ff_up, sizeof(ff_up))) {
- retval = -EFAULT;
- break;
- }
+ retval = uinput_ff_upload_to_user(p, &ff_up);
break;
case UI_BEGIN_FF_ERASE:
@@ -576,29 +672,34 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
retval = -EFAULT;
break;
}
+
req = uinput_request_find(udev, ff_erase.request_id);
- if (!(req && req->code == UI_FF_ERASE)) {
+ if (!req || req->code != UI_FF_ERASE) {
retval = -EINVAL;
break;
}
+
ff_erase.retval = 0;
ff_erase.effect_id = req->u.effect_id;
if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
retval = -EFAULT;
break;
}
+
break;
case UI_END_FF_UPLOAD:
- if (copy_from_user(&ff_up, p, sizeof(ff_up))) {
- retval = -EFAULT;
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
break;
- }
+
req = uinput_request_find(udev, ff_up.request_id);
- if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
+ if (!req || req->code != UI_FF_UPLOAD ||
+ !req->u.upload.effect) {
retval = -EINVAL;
break;
}
+
req->retval = ff_up.retval;
uinput_request_done(udev, req);
break;
@@ -608,11 +709,13 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
retval = -EFAULT;
break;
}
+
req = uinput_request_find(udev, ff_erase.request_id);
- if (!(req && req->code == UI_FF_ERASE)) {
+ if (!req || req->code != UI_FF_ERASE) {
retval = -EINVAL;
break;
}
+
req->retval = ff_erase.retval;
uinput_request_done(udev, req);
break;
@@ -626,6 +729,18 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return retval;
}
+static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, (void __user *)arg);
+}
+
+#ifdef CONFIG_COMPAT
+static long uinput_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
+}
+#endif
+
static const struct file_operations uinput_fops = {
.owner = THIS_MODULE,
.open = uinput_open,
@@ -634,6 +749,9 @@ static const struct file_operations uinput_fops = {
.write = uinput_write,
.poll = uinput_poll,
.unlocked_ioctl = uinput_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = uinput_compat_ioctl,
+#endif
};
static struct miscdevice uinput_misc = {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.