Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  Copyright (c) 2001-2005 Edouard TISSERANT   <edouard.tisserant@wanadoo.fr>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *  Copyright (c) 2004-2005 Stephane VOLTZ      <svoltz@numericable.fr>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *  USB Acecad "Acecad Flair" tablet support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *  Changelog:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *      v3.2 - Added sysfs support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/usb/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) MODULE_AUTHOR("Edouard TISSERANT <edouard.tisserant@wanadoo.fr>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) MODULE_DESCRIPTION("USB Acecad Flair tablet driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define USB_VENDOR_ID_ACECAD	0x0460
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define USB_DEVICE_ID_FLAIR	0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define USB_DEVICE_ID_302	0x0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) struct usb_acecad {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	char name[128];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	char phys[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct urb *irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	unsigned char *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	dma_addr_t data_dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static void usb_acecad_irq(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	struct usb_acecad *acecad = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	unsigned char *data = acecad->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	struct input_dev *dev = acecad->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	struct usb_interface *intf = acecad->intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct usb_device *udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	int prox, status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	switch (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		/* success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	case -ECONNRESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		/* this urb is terminated, clean up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 			__func__, urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 			__func__, urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		goto resubmit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	prox = (data[0] & 0x04) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	input_report_key(dev, BTN_TOOL_PEN, prox);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	if (prox) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		int x = data[1] | (data[2] << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		int y = data[3] | (data[4] << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		/* Pressure should compute the same way for flair and 302 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		int pressure = data[5] | (data[6] << 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		int touch = data[0] & 0x01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		int stylus = (data[0] & 0x10) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		int stylus2 = (data[0] & 0x20) >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		input_report_abs(dev, ABS_X, x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		input_report_abs(dev, ABS_Y, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		input_report_abs(dev, ABS_PRESSURE, pressure);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		input_report_key(dev, BTN_TOUCH, touch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		input_report_key(dev, BTN_STYLUS, stylus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		input_report_key(dev, BTN_STYLUS2, stylus2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	/* event termination */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	input_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) resubmit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	status = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		dev_err(&intf->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			"can't resubmit intr, %s-%s/input0, status %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 			udev->bus->bus_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			udev->devpath, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) static int usb_acecad_open(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	struct usb_acecad *acecad = input_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	acecad->irq->dev = interface_to_usbdev(acecad->intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	if (usb_submit_urb(acecad->irq, GFP_KERNEL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static void usb_acecad_close(struct input_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	struct usb_acecad *acecad = input_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	usb_kill_urb(acecad->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	struct usb_device *dev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	struct usb_host_interface *interface = intf->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct usb_endpoint_descriptor *endpoint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	struct usb_acecad *acecad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	int pipe, maxp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	if (interface->desc.bNumEndpoints != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	endpoint = &interface->endpoint[0].desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	if (!usb_endpoint_is_int_in(endpoint))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	input_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	if (!acecad || !input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	if (!acecad->data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		err= -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if (!acecad->irq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	acecad->intf = intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	acecad->input = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (dev->manufacturer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (dev->product) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		if (dev->manufacturer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			strlcat(acecad->name, " ", sizeof(acecad->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		strlcat(acecad->name, dev->product, sizeof(acecad->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	input_dev->name = acecad->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	input_dev->phys = acecad->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	usb_to_input_id(dev, &input_dev->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	input_dev->dev.parent = &intf->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	input_set_drvdata(input_dev, acecad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	input_dev->open = usb_acecad_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	input_dev->close = usb_acecad_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		BIT_MASK(BTN_STYLUS2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	switch (id->driver_info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		if (!strlen(acecad->name))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			snprintf(acecad->name, sizeof(acecad->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 				"USB Acecad Flair Tablet %04x:%04x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 				le16_to_cpu(dev->descriptor.idVendor),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 				le16_to_cpu(dev->descriptor.idProduct));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		if (!strlen(acecad->name))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			snprintf(acecad->name, sizeof(acecad->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 				"USB Acecad 302 Tablet %04x:%04x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 				le16_to_cpu(dev->descriptor.idVendor),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 				le16_to_cpu(dev->descriptor.idProduct));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	usb_fill_int_urb(acecad->irq, dev, pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			acecad->data, maxp > 8 ? 8 : maxp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			usb_acecad_irq, acecad, endpoint->bInterval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	acecad->irq->transfer_dma = acecad->data_dma;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	err = input_register_device(acecad->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	usb_set_intfdata(intf, acecad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)  fail3:	usb_free_urb(acecad->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)  fail2:	usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)  fail1: input_free_device(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	kfree(acecad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static void usb_acecad_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	struct usb_acecad *acecad = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	struct usb_device *udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	input_unregister_device(acecad->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	usb_free_urb(acecad->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	usb_free_coherent(udev, 8, acecad->data, acecad->data_dma);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	kfree(acecad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static const struct usb_device_id usb_acecad_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	{ USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302),	 .driver_info = 1 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static struct usb_driver usb_acecad_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	.name =		"usb_acecad",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	.probe =	usb_acecad_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	.disconnect =	usb_acecad_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	.id_table =	usb_acecad_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) module_usb_driver(usb_acecad_driver);