Hi,
Any news/thought regarding this patch ?
Thanks,
Cheers,
2015-02-15 13:44 GMT+01:00 Thomas Sanchez <thomas.sanchz@xxxxxxxxx>:
> This commit introduces a new driver for Foxconn CNTouch trackpad that
> can be found on LDLC's laptop IRIS family. The driver has been inspired
> from usbmouse.c.
>
> Signed-off-by: Thomas Sanchez <thomas.sanchz@xxxxxxxxx>
> ---
> drivers/input/mouse/Kconfig | 11 ++
> drivers/input/mouse/Makefile | 1 +
> drivers/input/mouse/foxconn_usb.c | 231 ++++++++++++++++++++++++++++++++++++++
> 3 files changed, 243 insertions(+)
> create mode 100644 drivers/input/mouse/foxconn_usb.c
>
> diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
> index 4658b5d..e240be3 100644
> --- a/drivers/input/mouse/Kconfig
> +++ b/drivers/input/mouse/Kconfig
> @@ -407,4 +407,15 @@ config MOUSE_NAVPOINT_PXA27x
> To compile this driver as a module, choose M here: the
> module will be called navpoint.
>
> +config MOUSE_FOXCONN_CNTOUCH
> + tristate "Foxconn CNTouch USB device support"
> + depends on USB_ARCH_HAS_HCD
> + select USB
> + help
> + This driver adds support for the Foxconn CNTouch trackpad present for
> + instance on IRIS laptop family from LDLC.
> +
> + To compile this driver as a module, choose M here: the
> + module will be called foxconn_usb.
> +
> endif
> diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
> index 8a9c98e..575804f 100644
> --- a/drivers/input/mouse/Makefile
> +++ b/drivers/input/mouse/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
> obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
> obj-$(CONFIG_MOUSE_CYAPA) += cyapatp.o
> obj-$(CONFIG_MOUSE_ELAN_I2C) += elan_i2c.o
> +obj-$(CONFIG_MOUSE_FOXCONN_CNTOUCH) += foxconn_usb.o
> obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
> obj-$(CONFIG_MOUSE_INPORT) += inport.o
> obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
> diff --git a/drivers/input/mouse/foxconn_usb.c b/drivers/input/mouse/foxconn_usb.c
> new file mode 100644
> index 0000000..3615b20
> --- /dev/null
> +++ b/drivers/input/mouse/foxconn_usb.c
> @@ -0,0 +1,231 @@
> +/*
> + * Copyright (c) 2015-2016 Thomas Sanchez
> + *
> + * CNTouch driver
> + */
> +
> +/*
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/errno.h>
> +#include <linux/slab.h>
> +#include <linux/module.h>
> +#include <linux/usb.h>
> +#include <linux/usb/input.h>
> +
> +#define USB_VENDOR_ID_FOXCONN 0x294e
> +#define USB_DEVICE_ID_FOXCONN_CNTOUCH 0x1001
> +
> +#define DRIVER_DESC "CNTouch USB Driver"
> +
> +static const struct usb_device_id cntouch_devices[] = {
> + {USB_DEVICE(USB_VENDOR_ID_FOXCONN, USB_DEVICE_ID_FOXCONN_CNTOUCH)},
> + {},
> +};
> +
> +MODULE_AUTHOR("Thomas Sanchez, thomas.sanchz@xxxxxxxxx");
> +MODULE_DESCRIPTION(DRIVER_DESC);
> +MODULE_LICENSE("GPL");
> +
> +MODULE_DEVICE_TABLE(usb, cntouch_devices);
> +
> +struct cntouch_device {
> + struct usb_device *usb_dev;
> + struct input_dev *input_dev;
> + struct urb *irq;
> + signed char *data;
> + dma_addr_t data_dma;
> + char usb_path[64];
> +};
> +
> +static void cntouch_irq(struct urb *urb)
> +{
> + struct cntouch_device *cn_dev = urb->context;
> + signed char *data = cn_dev->data;
> + struct input_dev *dev = cn_dev->input_dev;
> + int status;
> +
> + switch (urb->status) {
> + case 0:
> + break;
> + case -ECONNRESET:
> + case -ENOENT:
> + case -ESHUTDOWN:
> + return;
> + default:
> + goto resubmit;
> + }
> +
> + input_report_rel(dev, REL_X, data[1]);
> + input_report_rel(dev, REL_Y, data[2]);
> +
> + input_report_rel(dev, REL_WHEEL, data[3]);
> + input_report_rel(dev, REL_HWHEEL, data[4]);
> +
> + input_report_key(dev, BTN_LEFT, data[0] & 0x01);
> + input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
> +
> + input_report_key(
> + dev, data[4] == 0 ? BTN_TOOL_FINGER : BTN_TOOL_DOUBLETAP, 1);
> +
> + input_sync(dev);
> +
> +resubmit:
> + status = usb_submit_urb(urb, GFP_ATOMIC);
> + if (status) {
> + dev_err(&cn_dev->usb_dev->dev,
> + "can't resubmit intr, %s-%s/input0, status %d\n",
> + cn_dev->usb_dev->bus->bus_name,
> + cn_dev->usb_dev->devpath, status);
> + }
> +}
> +
> +static int cntouch_open(struct input_dev *dev)
> +{
> + struct cntouch_device *cn_dev = input_get_drvdata(dev);
> +
> + if (usb_submit_urb(cn_dev->irq, GFP_KERNEL))
> + return -EIO;
> + return 0;
> +}
> +
> +static void cntouch_close(struct input_dev *dev)
> +{
> + struct cntouch_device *cn_dev = input_get_drvdata(dev);
> +
> + usb_kill_urb(cn_dev->irq);
> +}
> +
> +static int cntouch_probe(struct usb_interface *interface,
> + const struct usb_device_id *id)
> +{
> + struct usb_device *usb_dev = interface_to_usbdev(interface);
> + struct cntouch_device *cn_dev;
> + struct usb_host_interface *host_interface;
> + struct usb_endpoint_descriptor *endpoint;
> + int pipe, maxp;
> + int error;
> +
> + host_interface = interface->cur_altsetting;
> +
> + if (host_interface->desc.bNumEndpoints != 1)
> + return -ENODEV;
> +
> + endpoint = &host_interface->endpoint[0].desc;
> + if (!usb_endpoint_is_int_in(endpoint))
> + return -ENODEV;
> +
> + pipe = usb_rcvintpipe(usb_dev, endpoint->bEndpointAddress);
> + maxp = usb_maxpacket(usb_dev, pipe, usb_pipeout(pipe));
> +
> + cn_dev = kzalloc(sizeof(*cn_dev), GFP_KERNEL);
> + if (cn_dev == NULL) {
> + error = -ENOMEM;
> + goto err_1;
> + }
> +
> + cn_dev->input_dev = input_allocate_device();
> + if (!cn_dev->input_dev) {
> + error = -ENOMEM;
> + goto err_2;
> + }
> +
> + cn_dev->data =
> + usb_alloc_coherent(usb_dev, 8, GFP_ATOMIC, &cn_dev->data_dma);
> + if (!cn_dev->data) {
> + error = -ENOMEM;
> + goto err_3;
> + }
> +
> + cn_dev->irq = usb_alloc_urb(0, GFP_KERNEL);
> + if (!cn_dev->irq) {
> + error = -ENOMEM;
> + goto err_4;
> + }
> +
> + usb_set_intfdata(interface, cn_dev);
> +
> + usb_make_path(usb_dev, cn_dev->usb_path, sizeof(cn_dev->usb_path));
> + strlcat(cn_dev->usb_path, "/input0", sizeof(cn_dev->usb_path));
> +
> + cn_dev->input_dev->name = "CNTouch";
> + cn_dev->input_dev->phys = cn_dev->usb_path;
> + usb_to_input_id(usb_dev, &cn_dev->input_dev->id);
> + cn_dev->input_dev->dev.parent = &interface->dev;
> +
> + __set_bit(EV_REL, cn_dev->input_dev->evbit);
> + __set_bit(EV_KEY, cn_dev->input_dev->evbit);
> +
> + __set_bit(BTN_MOUSE, cn_dev->input_dev->keybit);
> + __set_bit(BTN_LEFT, cn_dev->input_dev->keybit);
> + __set_bit(BTN_RIGHT, cn_dev->input_dev->keybit);
> + __set_bit(BTN_TOOL_FINGER, cn_dev->input_dev->keybit);
> + __set_bit(BTN_TOOL_DOUBLETAP, cn_dev->input_dev->keybit);
> +
> + __set_bit(REL_X, cn_dev->input_dev->relbit);
> + __set_bit(REL_Y, cn_dev->input_dev->relbit);
> + __set_bit(REL_WHEEL, cn_dev->input_dev->relbit);
> + __set_bit(REL_HWHEEL, cn_dev->input_dev->relbit);
> +
> + input_set_drvdata(cn_dev->input_dev, cn_dev);
> +
> + cn_dev->input_dev->open = cntouch_open;
> + cn_dev->input_dev->close = cntouch_close;
> +
> + usb_fill_int_urb(cn_dev->irq, usb_dev, pipe, cn_dev->data,
> + (maxp > 8 ? 8 : maxp), cntouch_irq, cn_dev,
> + endpoint->bInterval);
> + cn_dev->irq->transfer_dma = cn_dev->data_dma;
> + cn_dev->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
> +
> + error = input_register_device(cn_dev->input_dev);
> + if (error)
> + goto err_5;
> +
> + return 0;
> +
> +err_5:
> + usb_free_urb(cn_dev->irq);
> +err_4:
> + usb_free_coherent(usb_dev, 8, cn_dev->data, cn_dev->data_dma);
> +err_3:
> + input_free_device(cn_dev->input_dev);
> +err_2:
> + usb_set_intfdata(interface, NULL);
> + usb_put_dev(cn_dev->usb_dev);
> + kfree(cn_dev);
> +err_1:
> + return error;
> +}
> +
> +static void cntouch_disconnect(struct usb_interface *interface)
> +{
> + struct cntouch_device *cn_dev = usb_get_intfdata(interface);
> +
> + input_unregister_device(cn_dev->input_dev);
> + usb_free_urb(cn_dev->irq);
> + usb_free_coherent(cn_dev->usb_dev, 8, cn_dev->data, cn_dev->data_dma);
> + usb_set_intfdata(interface, NULL);
> + usb_put_dev(cn_dev->usb_dev);
> + kfree(cn_dev);
> +}
> +
> +static struct usb_driver cntouch_driver = {
> + .name = "CNTouch",
> + .probe = &cntouch_probe,
> + .disconnect = &cntouch_disconnect,
> + .id_table = cntouch_devices,
> +};
> +
> +module_usb_driver(cntouch_driver);
> --
> 2.1.0
>
--
Thomas Sanchez
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