GTCO digitizer USB driver
-Use the err() and dbg() macros from usb.h for system logging
-
TO CHECK: Is pressure done right on report 5?
Copyright (C) 2006 GTCO CalComp
struct input_dev *inputdevice; /* input device struct pointer */
struct usb_device *usbdev; /* the usb device for this device */
+ struct usb_interface *intf; /* the usb interface for this device */
struct urb *urbinfo; /* urb for incoming reports */
dma_addr_t buf_dma; /* dma addr of the data buffer*/
unsigned char * buffer; /* databuffer for reports */
static void parse_hid_report_descriptor(struct gtco *device, char * report,
int length)
{
+ struct device *ddev = &device->intf->dev;
int x, i = 0;
/* Tag primitive vars */
char indentstr[10] = "";
- dbg("======>>>>>>PARSE<<<<<<======");
+ dev_dbg(ddev, "======>>>>>>PARSE<<<<<<======\n");
/* Walk this report and pull out the info we need */
while (i < length) {
else if (data == 3)
strcpy(globtype, "Var|Const");
- dbg("::::: Saving Report: %d input #%d Max: 0x%X(%d) Min:0x%X(%d) of %d bits",
- globalval[TAG_GLOB_REPORT_ID], inputnum,
- globalval[TAG_GLOB_LOG_MAX], globalval[TAG_GLOB_LOG_MAX],
- globalval[TAG_GLOB_LOG_MIN], globalval[TAG_GLOB_LOG_MIN],
- globalval[TAG_GLOB_REPORT_SZ] * globalval[TAG_GLOB_REPORT_CNT]);
+ dev_dbg(ddev, "::::: Saving Report: %d input #%d Max: 0x%X(%d) Min:0x%X(%d) of %d bits\n",
+ globalval[TAG_GLOB_REPORT_ID], inputnum,
+ globalval[TAG_GLOB_LOG_MAX], globalval[TAG_GLOB_LOG_MAX],
+ globalval[TAG_GLOB_LOG_MIN], globalval[TAG_GLOB_LOG_MIN],
+ globalval[TAG_GLOB_REPORT_SZ] * globalval[TAG_GLOB_REPORT_CNT]);
/*
*/
switch (inputnum) {
case 0: /* X coord */
- dbg("GER: X Usage: 0x%x", usage);
+ dev_dbg(ddev, "GER: X Usage: 0x%x\n", usage);
if (device->max_X == 0) {
device->max_X = globalval[TAG_GLOB_LOG_MAX];
device->min_X = globalval[TAG_GLOB_LOG_MIN];
break;
case 1: /* Y coord */
- dbg("GER: Y Usage: 0x%x", usage);
+ dev_dbg(ddev, "GER: Y Usage: 0x%x\n", usage);
if (device->max_Y == 0) {
device->max_Y = globalval[TAG_GLOB_LOG_MAX];
device->min_Y = globalval[TAG_GLOB_LOG_MIN];
maintype = 'S';
if (data == 0) {
- dbg("======>>>>>> Physical");
+ dev_dbg(ddev, "======>>>>>> Physical\n");
strcpy(globtype, "Physical");
} else
- dbg("======>>>>>>");
+ dev_dbg(ddev, "======>>>>>>\n");
/* Indent the debug output */
indent++;
break;
case TAG_MAIN_COL_END:
- dbg("<<<<<<======");
+ dev_dbg(ddev, "<<<<<<======\n");
maintype = 'E';
indent--;
for (x = 0; x < indent; x++)
switch (size) {
case 1:
- dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
- indentstr, tag, maintype, size, globtype, data);
+ dev_dbg(ddev, "%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x\n",
+ indentstr, tag, maintype, size, globtype, data);
break;
case 2:
- dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
- indentstr, tag, maintype, size, globtype, data16);
+ dev_dbg(ddev, "%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x\n",
+ indentstr, tag, maintype, size, globtype, data16);
break;
case 4:
- dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
- indentstr, tag, maintype, size, globtype, data32);
+ dev_dbg(ddev, "%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x\n",
+ indentstr, tag, maintype, size, globtype, data32);
break;
}
break;
if (tag < TAG_GLOB_MAX) {
switch (size) {
case 1:
- dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
- indentstr, globtype, tag, size, data);
+ dev_dbg(ddev, "%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x\n",
+ indentstr, globtype, tag, size, data);
globalval[tag] = data;
break;
case 2:
- dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
- indentstr, globtype, tag, size, data16);
+ dev_dbg(ddev, "%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x\n",
+ indentstr, globtype, tag, size, data16);
globalval[tag] = data16;
break;
case 4:
- dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
- indentstr, globtype, tag, size, data32);
+ dev_dbg(ddev, "%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x\n",
+ indentstr, globtype, tag, size, data32);
globalval[tag] = data32;
break;
}
} else {
- dbg("%sGLOBALTAG: ILLEGAL TAG:%d SIZE: %d ",
- indentstr, tag, size);
+ dev_dbg(ddev, "%sGLOBALTAG: ILLEGAL TAG:%d SIZE: %d\n",
+ indentstr, tag, size);
}
break;
switch (size) {
case 1:
- dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
- indentstr, tag, globtype, size, data);
+ dev_dbg(ddev, "%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x\n",
+ indentstr, tag, globtype, size, data);
break;
case 2:
- dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
- indentstr, tag, globtype, size, data16);
+ dev_dbg(ddev, "%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x\n",
+ indentstr, tag, globtype, size, data16);
break;
case 4:
- dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
- indentstr, tag, globtype, size, data32);
+ dev_dbg(ddev, "%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x\n",
+ indentstr, tag, globtype, size, data32);
break;
}
* the rest as 0
*/
val = device->buffer[5] & MASK_BUTTON;
- dbg("======>>>>>>REPORT 1: val 0x%X(%d)",
- val, val);
+ dev_dbg(&device->intf->dev,
+ "======>>>>>>REPORT 1: val 0x%X(%d)\n",
+ val, val);
/*
* We don't apply any meaning to the button
resubmit:
rc = usb_submit_urb(urbinfo, GFP_ATOMIC);
if (rc != 0)
- err("usb_submit_urb failed rc=0x%x", rc);
+ dev_err(&device->intf->dev,
+ "usb_submit_urb failed rc=0x%x\n", rc);
}
/*
gtco = kzalloc(sizeof(struct gtco), GFP_KERNEL);
input_dev = input_allocate_device();
if (!gtco || !input_dev) {
- err("No more memory");
+ dev_err(&usbinterface->dev, "No more memory\n");
error = -ENOMEM;
goto err_free_devs;
}
/* Save interface information */
gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface));
+ gtco->intf = usbinterface;
/* Allocate some data for incoming reports */
gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
GFP_KERNEL, >co->buf_dma);
if (!gtco->buffer) {
- err("No more memory for us buffers");
+ dev_err(&usbinterface->dev, "No more memory for us buffers\n");
error = -ENOMEM;
goto err_free_devs;
}
/* Allocate URB for reports */
gtco->urbinfo = usb_alloc_urb(0, GFP_KERNEL);
if (!gtco->urbinfo) {
- err("Failed to allocate URB");
+ dev_err(&usbinterface->dev, "Failed to allocate URB\n");
error = -ENOMEM;
goto err_free_buf;
}
endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
/* Some debug */
- dbg("gtco # interfaces: %d", usbinterface->num_altsetting);
- dbg("num endpoints: %d", usbinterface->cur_altsetting->desc.bNumEndpoints);
- dbg("interface class: %d", usbinterface->cur_altsetting->desc.bInterfaceClass);
- dbg("endpoint: attribute:0x%x type:0x%x", endpoint->bmAttributes, endpoint->bDescriptorType);
+ dev_dbg(&usbinterface->dev, "gtco # interfaces: %d\n", usbinterface->num_altsetting);
+ dev_dbg(&usbinterface->dev, "num endpoints: %d\n", usbinterface->cur_altsetting->desc.bNumEndpoints);
+ dev_dbg(&usbinterface->dev, "interface class: %d\n", usbinterface->cur_altsetting->desc.bInterfaceClass);
+ dev_dbg(&usbinterface->dev, "endpoint: attribute:0x%x type:0x%x\n", endpoint->bmAttributes, endpoint->bDescriptorType);
if (usb_endpoint_xfer_int(endpoint))
- dbg("endpoint: we have interrupt endpoint\n");
+ dev_dbg(&usbinterface->dev, "endpoint: we have interrupt endpoint\n");
- dbg("endpoint extra len:%d ", usbinterface->altsetting[0].extralen);
+ dev_dbg(&usbinterface->dev, "endpoint extra len:%d\n", usbinterface->altsetting[0].extralen);
/*
* Find the HID descriptor so we can find out the size of the
*/
if (usb_get_extra_descriptor(usbinterface->cur_altsetting,
HID_DEVICE_TYPE, &hid_desc) != 0){
- err("Can't retrieve exta USB descriptor to get hid report descriptor length");
+ dev_err(&usbinterface->dev,
+ "Can't retrieve exta USB descriptor to get hid report descriptor length\n");
error = -EIO;
goto err_free_urb;
}
- dbg("Extra descriptor success: type:%d len:%d",
- hid_desc->bDescriptorType, hid_desc->wDescriptorLength);
+ dev_dbg(&usbinterface->dev,
+ "Extra descriptor success: type:%d len:%d\n",
+ hid_desc->bDescriptorType, hid_desc->wDescriptorLength);
report = kzalloc(le16_to_cpu(hid_desc->wDescriptorLength), GFP_KERNEL);
if (!report) {
- err("No more memory for report");
+ dev_err(&usbinterface->dev, "No more memory for report\n");
error = -ENOMEM;
goto err_free_urb;
}
le16_to_cpu(hid_desc->wDescriptorLength),
5000); /* 5 secs */
- dbg("usb_control_msg result: %d", result);
+ dev_dbg(&usbinterface->dev, "usb_control_msg result: %d\n", result);
if (result == le16_to_cpu(hid_desc->wDescriptorLength)) {
parse_hid_report_descriptor(gtco, report, result);
break;
/* If we didn't get the report, fail */
if (result != le16_to_cpu(hid_desc->wDescriptorLength)) {
- err("Failed to get HID Report Descriptor of size: %d",
- hid_desc->wDescriptorLength);
+ dev_err(&usbinterface->dev,
+ "Failed to get HID Report Descriptor of size: %d\n",
+ hid_desc->wDescriptorLength);
error = -EIO;
goto err_free_urb;
}
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