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path: root/drivers/input/tablet/acecad.c
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Diffstat (limited to 'drivers/input/tablet/acecad.c')
-rw-r--r--drivers/input/tablet/acecad.c254
1 files changed, 254 insertions, 0 deletions
diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c
new file mode 100644
index 000000000..b20e5a1af
--- /dev/null
+++ b/drivers/input/tablet/acecad.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr>
+ * Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr>
+ *
+ * USB Acecad "Acecad Flair" tablet support
+ *
+ * Changelog:
+ * v3.2 - Added sysfs support
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+MODULE_AUTHOR("Edouard TISSERANT <edouard.tisserant@wanadoo.fr>");
+MODULE_DESCRIPTION("USB Acecad Flair tablet driver");
+MODULE_LICENSE("GPL");
+
+#define USB_VENDOR_ID_ACECAD 0x0460
+#define USB_DEVICE_ID_FLAIR 0x0004
+#define USB_DEVICE_ID_302 0x0008
+
+struct usb_acecad {
+ char name[128];
+ char phys[64];
+ struct usb_interface *intf;
+ struct input_dev *input;
+ struct urb *irq;
+
+ unsigned char *data;
+ dma_addr_t data_dma;
+};
+
+static void usb_acecad_irq(struct urb *urb)
+{
+ struct usb_acecad *acecad = urb->context;
+ unsigned char *data = acecad->data;
+ struct input_dev *dev = acecad->input;
+ struct usb_interface *intf = acecad->intf;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ int prox, status;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
+ __func__, urb->status);
+ return;
+ default:
+ dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
+ __func__, urb->status);
+ goto resubmit;
+ }
+
+ prox = (data[0] & 0x04) >> 2;
+ input_report_key(dev, BTN_TOOL_PEN, prox);
+
+ if (prox) {
+ int x = data[1] | (data[2] << 8);
+ int y = data[3] | (data[4] << 8);
+ /* Pressure should compute the same way for flair and 302 */
+ int pressure = data[5] | (data[6] << 8);
+ int touch = data[0] & 0x01;
+ int stylus = (data[0] & 0x10) >> 4;
+ int stylus2 = (data[0] & 0x20) >> 5;
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_abs(dev, ABS_PRESSURE, pressure);
+ input_report_key(dev, BTN_TOUCH, touch);
+ input_report_key(dev, BTN_STYLUS, stylus);
+ input_report_key(dev, BTN_STYLUS2, stylus2);
+ }
+
+ /* event termination */
+ input_sync(dev);
+
+resubmit:
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status)
+ dev_err(&intf->dev,
+ "can't resubmit intr, %s-%s/input0, status %d\n",
+ udev->bus->bus_name,
+ udev->devpath, status);
+}
+
+static int usb_acecad_open(struct input_dev *dev)
+{
+ struct usb_acecad *acecad = input_get_drvdata(dev);
+
+ acecad->irq->dev = interface_to_usbdev(acecad->intf);
+ if (usb_submit_urb(acecad->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void usb_acecad_close(struct input_dev *dev)
+{
+ struct usb_acecad *acecad = input_get_drvdata(dev);
+
+ usb_kill_urb(acecad->irq);
+}
+
+static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_acecad *acecad;
+ struct input_dev *input_dev;
+ int pipe, maxp;
+ int err;
+
+ if (interface->desc.bNumEndpoints != 1)
+ return -ENODEV;
+
+ endpoint = &interface->endpoint[0].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+ maxp = usb_maxpacket(dev, pipe);
+
+ acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!acecad || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
+ if (!acecad->data) {
+ err= -ENOMEM;
+ goto fail1;
+ }
+
+ acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!acecad->irq) {
+ err = -ENOMEM;
+ goto fail2;
+ }
+
+ acecad->intf = intf;
+ acecad->input = input_dev;
+
+ if (dev->manufacturer)
+ strscpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
+
+ if (dev->product) {
+ if (dev->manufacturer)
+ strlcat(acecad->name, " ", sizeof(acecad->name));
+ strlcat(acecad->name, dev->product, sizeof(acecad->name));
+ }
+
+ usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
+ strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
+
+ input_dev->name = acecad->name;
+ input_dev->phys = acecad->phys;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, acecad);
+
+ input_dev->open = usb_acecad_open;
+ input_dev->close = usb_acecad_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |
+ BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) |
+ BIT_MASK(BTN_STYLUS2);
+
+ switch (id->driver_info) {
+ case 0:
+ input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
+ if (!strlen(acecad->name))
+ snprintf(acecad->name, sizeof(acecad->name),
+ "USB Acecad Flair Tablet %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+ break;
+
+ case 1:
+ input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
+ if (!strlen(acecad->name))
+ snprintf(acecad->name, sizeof(acecad->name),
+ "USB Acecad 302 Tablet %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+ break;
+ }
+
+ usb_fill_int_urb(acecad->irq, dev, pipe,
+ acecad->data, maxp > 8 ? 8 : maxp,
+ usb_acecad_irq, acecad, endpoint->bInterval);
+ acecad->irq->transfer_dma = acecad->data_dma;
+ acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ err = input_register_device(acecad->input);
+ if (err)
+ goto fail3;
+
+ usb_set_intfdata(intf, acecad);
+
+ return 0;
+
+ fail3: usb_free_urb(acecad->irq);
+ fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
+ fail1: input_free_device(input_dev);
+ kfree(acecad);
+ return err;
+}
+
+static void usb_acecad_disconnect(struct usb_interface *intf)
+{
+ struct usb_acecad *acecad = usb_get_intfdata(intf);
+ struct usb_device *udev = interface_to_usbdev(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ input_unregister_device(acecad->input);
+ usb_free_urb(acecad->irq);
+ usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);
+ kfree(acecad);
+}
+
+static const struct usb_device_id usb_acecad_id_table[] = {
+ { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
+ { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
+
+static struct usb_driver usb_acecad_driver = {
+ .name = "usb_acecad",
+ .probe = usb_acecad_probe,
+ .disconnect = usb_acecad_disconnect,
+ .id_table = usb_acecad_id_table,
+};
+
+module_usb_driver(usb_acecad_driver);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 22:13:14 +0000