* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
+#include "composite.c"
#include "usbstring.c"
#include "config.c"
#include "epautoconf.c"
/* lock buffer lists during read/write calls */
struct mutex lock_printer_io;
struct usb_gadget *gadget;
- struct usb_request *req; /* for control responses */
- u8 config;
s8 interface;
struct usb_ep *in_ep, *out_ep;
struct device *pdev;
u8 printer_cdev_open;
wait_queue_head_t wait;
+ struct usb_function function;
};
static struct printer_dev usb_printer_gadget;
* parameters are in UTF-8 (superset of ASCII's 7 bit characters).
*/
-static ushort idVendor;
-module_param(idVendor, ushort, S_IRUGO);
-MODULE_PARM_DESC(idVendor, "USB Vendor ID");
-
-static ushort idProduct;
-module_param(idProduct, ushort, S_IRUGO);
-MODULE_PARM_DESC(idProduct, "USB Product ID");
-
-static ushort bcdDevice;
-module_param(bcdDevice, ushort, S_IRUGO);
-MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)");
-
-static char *iManufacturer;
-module_param(iManufacturer, charp, S_IRUGO);
-MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string");
-
-static char *iProduct;
-module_param(iProduct, charp, S_IRUGO);
-MODULE_PARM_DESC(iProduct, "USB Product string");
-
static char *iSerialNum;
module_param(iSerialNum, charp, S_IRUGO);
MODULE_PARM_DESC(iSerialNum, "1");
/*-------------------------------------------------------------------------*/
-#define xprintk(d, level, fmt, args...) \
- printk(level "%s: " fmt, DRIVER_DESC, ## args)
-
-#ifdef DEBUG
-#define DBG(dev, fmt, args...) \
- xprintk(dev, KERN_DEBUG, fmt, ## args)
-#else
-#define DBG(dev, fmt, args...) \
- do { } while (0)
-#endif /* DEBUG */
-
-#ifdef VERBOSE
-#define VDBG(dev, fmt, args...) \
- xprintk(dev, KERN_DEBUG, fmt, ## args)
-#else
-#define VDBG(dev, fmt, args...) \
- do { } while (0)
-#endif /* VERBOSE */
-
-#define ERROR(dev, fmt, args...) \
- xprintk(dev, KERN_ERR, fmt, ## args)
-#define WARNING(dev, fmt, args...) \
- xprintk(dev, KERN_WARNING, fmt, ## args)
-#define INFO(dev, fmt, args...) \
- xprintk(dev, KERN_INFO, fmt, ## args)
-
-/*-------------------------------------------------------------------------*/
-
-/* USB DRIVER HOOKUP (to the hardware driver, below us), mostly
- * ep0 implementation: descriptors, config management, setup().
- * also optional class-specific notification interrupt transfer.
- */
-
/*
* DESCRIPTORS ... most are static, but strings and (full) configuration
* descriptors are built on demand.
.bNumConfigurations = 1
};
-static struct usb_otg_descriptor otg_desc = {
- .bLength = sizeof otg_desc,
- .bDescriptorType = USB_DT_OTG,
- .bmAttributes = USB_OTG_SRP
-};
-
-static struct usb_config_descriptor config_desc = {
- .bLength = sizeof config_desc,
- .bDescriptorType = USB_DT_CONFIG,
-
- /* compute wTotalLength on the fly */
- .bNumInterfaces = 1,
- .bConfigurationValue = DEV_CONFIG_VALUE,
- .iConfiguration = 0,
- .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
- .bMaxPower = CONFIG_USB_GADGET_VBUS_DRAW / 2,
-};
-
static struct usb_interface_descriptor intf_desc = {
.bLength = sizeof intf_desc,
.bDescriptorType = USB_DT_INTERFACE,
.bmAttributes = USB_ENDPOINT_XFER_BULK
};
-static const struct usb_descriptor_header *fs_printer_function [11] = {
- (struct usb_descriptor_header *) &otg_desc,
+static struct usb_descriptor_header *fs_printer_function[] = {
(struct usb_descriptor_header *) &intf_desc,
(struct usb_descriptor_header *) &fs_ep_in_desc,
(struct usb_descriptor_header *) &fs_ep_out_desc,
.bNumConfigurations = 1
};
-static const struct usb_descriptor_header *hs_printer_function [11] = {
- (struct usb_descriptor_header *) &otg_desc,
+static struct usb_descriptor_header *hs_printer_function[] = {
(struct usb_descriptor_header *) &intf_desc,
(struct usb_descriptor_header *) &hs_ep_in_desc,
(struct usb_descriptor_header *) &hs_ep_out_desc,
NULL
};
+static struct usb_otg_descriptor otg_descriptor = {
+ .bLength = sizeof otg_descriptor,
+ .bDescriptorType = USB_DT_OTG,
+ .bmAttributes = USB_OTG_SRP,
+};
+
+static const struct usb_descriptor_header *otg_desc[] = {
+ (struct usb_descriptor_header *) &otg_descriptor,
+ NULL,
+};
+
/* maxpacket and other transfer characteristics vary by speed. */
#define ep_desc(g, hs, fs) (((g)->speed == USB_SPEED_HIGH)?(hs):(fs))
{ } /* end of list */
};
-static struct usb_gadget_strings stringtab = {
+static struct usb_gadget_strings stringtab_dev = {
.language = 0x0409, /* en-us */
.strings = strings,
};
+static struct usb_gadget_strings *dev_strings[] = {
+ &stringtab_dev,
+ NULL,
+};
+
/*-------------------------------------------------------------------------*/
static struct usb_request *
dev->interface = -1;
}
-/* change our operational config. must agree with the code
- * that returns config descriptors, and altsetting code.
- */
-static int
-printer_set_config(struct printer_dev *dev, unsigned number)
-{
- int result = 0;
- struct usb_gadget *gadget = dev->gadget;
-
- switch (number) {
- case DEV_CONFIG_VALUE:
- result = 0;
- break;
- default:
- result = -EINVAL;
- /* FALL THROUGH */
- case 0:
- break;
- }
-
- if (result) {
- usb_gadget_vbus_draw(dev->gadget,
- dev->gadget->is_otg ? 8 : 100);
- } else {
- unsigned power;
-
- power = 2 * config_desc.bMaxPower;
- usb_gadget_vbus_draw(dev->gadget, power);
-
- dev->config = number;
- INFO(dev, "%s config #%d: %d mA, %s\n",
- usb_speed_string(gadget->speed),
- number, power, driver_desc);
- }
- return result;
-}
-
-static int
-config_buf(enum usb_device_speed speed, u8 *buf, u8 type, unsigned index,
- int is_otg)
-{
- int len;
- const struct usb_descriptor_header **function;
- int hs = (speed == USB_SPEED_HIGH);
-
- if (type == USB_DT_OTHER_SPEED_CONFIG)
- hs = !hs;
-
- if (hs) {
- function = hs_printer_function;
- } else {
- function = fs_printer_function;
- }
-
- if (index >= device_desc.bNumConfigurations)
- return -EINVAL;
-
- /* for now, don't advertise srp-only devices */
- if (!is_otg)
- function++;
-
- len = usb_gadget_config_buf(&config_desc, buf, USB_DESC_BUFSIZE,
- function);
- if (len < 0)
- return len;
- ((struct usb_config_descriptor *) buf)->bDescriptorType = type;
- return len;
-}
-
/* Change our operational Interface. */
-static int
-set_interface(struct printer_dev *dev, unsigned number)
+static int set_interface(struct printer_dev *dev, unsigned number)
{
int result = 0;
return result;
}
-static void printer_setup_complete(struct usb_ep *ep, struct usb_request *req)
-{
- if (req->status || req->actual != req->length)
- DBG((struct printer_dev *) ep->driver_data,
- "setup complete --> %d, %d/%d\n",
- req->status, req->actual, req->length);
-}
-
static void printer_soft_reset(struct printer_dev *dev)
{
struct usb_request *req;
* The setup() callback implements all the ep0 functionality that's not
* handled lower down.
*/
-static int
-printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
+static int printer_func_setup(struct usb_function *f,
+ const struct usb_ctrlrequest *ctrl)
{
- struct printer_dev *dev = get_gadget_data(gadget);
- struct usb_request *req = dev->req;
+ struct printer_dev *dev = container_of(f, struct printer_dev, function);
+ struct usb_composite_dev *cdev = f->config->cdev;
+ struct usb_request *req = cdev->req;
int value = -EOPNOTSUPP;
u16 wIndex = le16_to_cpu(ctrl->wIndex);
u16 wValue = le16_to_cpu(ctrl->wValue);
DBG(dev, "ctrl req%02x.%02x v%04x i%04x l%d\n",
ctrl->bRequestType, ctrl->bRequest, wValue, wIndex, wLength);
- req->complete = printer_setup_complete;
-
switch (ctrl->bRequestType&USB_TYPE_MASK) {
-
- case USB_TYPE_STANDARD:
- switch (ctrl->bRequest) {
-
- case USB_REQ_GET_DESCRIPTOR:
- if (ctrl->bRequestType != USB_DIR_IN)
- break;
- switch (wValue >> 8) {
-
- case USB_DT_DEVICE:
- device_desc.bMaxPacketSize0 =
- gadget->ep0->maxpacket;
- value = min(wLength, (u16) sizeof device_desc);
- memcpy(req->buf, &device_desc, value);
- break;
- case USB_DT_DEVICE_QUALIFIER:
- if (!gadget_is_dualspeed(gadget))
- break;
- /*
- * assumes ep0 uses the same value for both
- * speeds
- */
- dev_qualifier.bMaxPacketSize0 =
- gadget->ep0->maxpacket;
- value = min(wLength,
- (u16) sizeof dev_qualifier);
- memcpy(req->buf, &dev_qualifier, value);
- break;
-
- case USB_DT_OTHER_SPEED_CONFIG:
- if (!gadget_is_dualspeed(gadget))
- break;
- /* FALLTHROUGH */
- case USB_DT_CONFIG:
- value = config_buf(gadget->speed, req->buf,
- wValue >> 8,
- wValue & 0xff,
- gadget->is_otg);
- if (value >= 0)
- value = min(wLength, (u16) value);
- break;
-
- case USB_DT_STRING:
- value = usb_gadget_get_string(&stringtab,
- wValue & 0xff, req->buf);
- if (value >= 0)
- value = min(wLength, (u16) value);
- break;
- }
- break;
-
- case USB_REQ_SET_CONFIGURATION:
- if (ctrl->bRequestType != 0)
- break;
- if (gadget->a_hnp_support)
- DBG(dev, "HNP available\n");
- else if (gadget->a_alt_hnp_support)
- DBG(dev, "HNP needs a different root port\n");
- value = printer_set_config(dev, wValue);
- if (!value)
- value = set_interface(dev, PRINTER_INTERFACE);
- break;
- case USB_REQ_GET_CONFIGURATION:
- if (ctrl->bRequestType != USB_DIR_IN)
- break;
- *(u8 *)req->buf = dev->config;
- value = min(wLength, (u16) 1);
- break;
-
- case USB_REQ_SET_INTERFACE:
- if (ctrl->bRequestType != USB_RECIP_INTERFACE ||
- !dev->config)
- break;
-
- value = set_interface(dev, PRINTER_INTERFACE);
- break;
- case USB_REQ_GET_INTERFACE:
- if (ctrl->bRequestType !=
- (USB_DIR_IN|USB_RECIP_INTERFACE)
- || !dev->config)
- break;
-
- *(u8 *)req->buf = dev->interface;
- value = min(wLength, (u16) 1);
- break;
-
- default:
- goto unknown;
- }
- break;
-
case USB_TYPE_CLASS:
switch (ctrl->bRequest) {
case 0: /* Get the IEEE-1284 PNP String */
wValue, wIndex, wLength);
break;
}
-
- /* respond with data transfer before status phase? */
- if (value >= 0) {
- req->length = value;
- req->zero = value < wLength;
- value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
- if (value < 0) {
- DBG(dev, "ep_queue --> %d\n", value);
- req->status = 0;
- printer_setup_complete(gadget->ep0, req);
- }
- }
-
/* host either stalls (value < 0) or reports success */
return value;
}
-static void
-printer_disconnect(struct usb_gadget *gadget)
+static int __init printer_func_bind(struct usb_configuration *c,
+ struct usb_function *f)
+{
+ return 0;
+}
+
+static void printer_func_unbind(struct usb_configuration *c,
+ struct usb_function *f)
+{
+}
+
+static int printer_func_set_alt(struct usb_function *f,
+ unsigned intf, unsigned alt)
{
- struct printer_dev *dev = get_gadget_data(gadget);
+ struct printer_dev *dev = container_of(f, struct printer_dev, function);
+ int ret = -ENOTSUPP;
+
+ if (!alt)
+ ret = set_interface(dev, PRINTER_INTERFACE);
+ return ret;
+}
+
+static void printer_func_disable(struct usb_function *f)
+{
+ struct printer_dev *dev = container_of(f, struct printer_dev, function);
unsigned long flags;
DBG(dev, "%s\n", __func__);
spin_lock_irqsave(&dev->lock, flags);
-
printer_reset_interface(dev);
-
spin_unlock_irqrestore(&dev->lock, flags);
}
-static void
-printer_unbind(struct usb_gadget *gadget)
+static void printer_cfg_unbind(struct usb_configuration *c)
{
- struct printer_dev *dev = get_gadget_data(gadget);
+ struct printer_dev *dev;
struct usb_request *req;
+ dev = &usb_printer_gadget;
DBG(dev, "%s\n", __func__);
list_del(&req->list);
printer_req_free(dev->out_ep, req);
}
-
- if (dev->req) {
- printer_req_free(gadget->ep0, dev->req);
- dev->req = NULL;
- }
-
- set_gadget_data(gadget, NULL);
}
-static int __init
-printer_bind(struct usb_gadget *gadget)
+static struct usb_configuration printer_cfg_driver = {
+ .label = "printer",
+ .unbind = printer_cfg_unbind,
+ .bConfigurationValue = 1,
+ .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+};
+
+static int __init printer_bind_config(struct usb_configuration *c)
{
+ struct usb_gadget *gadget = c->cdev->gadget;
struct printer_dev *dev;
struct usb_ep *in_ep, *out_ep;
int status = -ENOMEM;
dev = &usb_printer_gadget;
+ dev->function.name = shortname;
+ dev->function.descriptors = fs_printer_function;
+ dev->function.hs_descriptors = hs_printer_function;
+ dev->function.bind = printer_func_bind;
+ dev->function.setup = printer_func_setup;
+ dev->function.unbind = printer_func_unbind;
+ dev->function.set_alt = printer_func_set_alt;
+ dev->function.disable = printer_func_disable;
/* Setup the sysfs files for the printer gadget. */
dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno,
init_utsname()->sysname, init_utsname()->release,
gadget->name);
- device_desc.idVendor =
- cpu_to_le16(PRINTER_VENDOR_NUM);
- device_desc.idProduct =
- cpu_to_le16(PRINTER_PRODUCT_NUM);
-
- /* support optional vendor/distro customization */
- if (idVendor) {
- if (!idProduct) {
- dev_err(&gadget->dev, "idVendor needs idProduct!\n");
- return -ENODEV;
- }
- device_desc.idVendor = cpu_to_le16(idVendor);
- device_desc.idProduct = cpu_to_le16(idProduct);
- if (bcdDevice)
- device_desc.bcdDevice = cpu_to_le16(bcdDevice);
- }
-
- if (iManufacturer)
- strlcpy(manufacturer, iManufacturer, sizeof manufacturer);
-
- if (iProduct)
- strlcpy(product_desc, iProduct, sizeof product_desc);
-
if (iSerialNum)
strlcpy(serial_num, iSerialNum, sizeof serial_num);
usb_gadget_set_selfpowered(gadget);
if (gadget->is_otg) {
- otg_desc.bmAttributes |= USB_OTG_HNP,
- config_desc.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+ otg_descriptor.bmAttributes |= USB_OTG_HNP;
+ printer_cfg_driver.descriptors = otg_desc;
+ printer_cfg_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
spin_lock_init(&dev->lock);
init_waitqueue_head(&dev->tx_wait);
init_waitqueue_head(&dev->tx_flush_wait);
- dev->config = 0;
dev->interface = -1;
dev->printer_cdev_open = 0;
dev->printer_status = PRINTER_NOT_ERROR;
dev->in_ep = in_ep;
dev->out_ep = out_ep;
- /* preallocate control message data and buffer */
- dev->req = printer_req_alloc(gadget->ep0, USB_DESC_BUFSIZE,
- GFP_KERNEL);
- if (!dev->req) {
- status = -ENOMEM;
- goto fail;
- }
-
for (i = 0; i < QLEN; i++) {
req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
if (!req) {
list_add(&req->list, &dev->rx_reqs);
}
- dev->req->complete = printer_setup_complete;
-
/* finish hookup to lower layer ... */
dev->gadget = gadget;
- set_gadget_data(gadget, dev);
- gadget->ep0->driver_data = dev;
INFO(dev, "%s, version: " DRIVER_VERSION "\n", driver_desc);
INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, out_ep->name,
in_ep->name);
-
return 0;
fail:
- printer_unbind(gadget);
+ printer_cfg_unbind(c);
return status;
}
-/*-------------------------------------------------------------------------*/
+static int printer_unbind(struct usb_composite_dev *cdev)
+{
+ return 0;
+}
-static struct usb_gadget_driver printer_driver = {
- .max_speed = USB_SPEED_HIGH,
+static int __init printer_bind(struct usb_composite_dev *cdev)
+{
+ return usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
+}
- .function = (char *) driver_desc,
+static struct usb_composite_driver printer_driver = {
+ .name = shortname,
+ .dev = &device_desc,
+ .strings = dev_strings,
+ .max_speed = USB_SPEED_HIGH,
.unbind = printer_unbind,
-
- .setup = printer_setup,
- .disconnect = printer_disconnect,
-
- .driver = {
- .name = (char *) shortname,
- .owner = THIS_MODULE,
- },
};
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Craig Nadler");
-MODULE_LICENSE("GPL");
-
static int __init
init(void)
{
usb_gadget_class = class_create(THIS_MODULE, "usb_printer_gadget");
if (IS_ERR(usb_gadget_class)) {
status = PTR_ERR(usb_gadget_class);
- ERROR(dev, "unable to create usb_gadget class %d\n", status);
+ pr_err("unable to create usb_gadget class %d\n", status);
return status;
}
status = alloc_chrdev_region(&g_printer_devno, 0, 1,
"USB printer gadget");
if (status) {
- ERROR(dev, "alloc_chrdev_region %d\n", status);
+ pr_err("alloc_chrdev_region %d\n", status);
class_destroy(usb_gadget_class);
return status;
}
- status = usb_gadget_probe_driver(&printer_driver, printer_bind);
+ status = usb_composite_probe(&printer_driver, printer_bind);
if (status) {
class_destroy(usb_gadget_class);
unregister_chrdev_region(g_printer_devno, 1);
- DBG(dev, "usb_gadget_probe_driver %x\n", status);
+ pr_err("usb_gadget_probe_driver %x\n", status);
}
return status;
static void __exit
cleanup(void)
{
- int status;
-
mutex_lock(&usb_printer_gadget.lock_printer_io);
- status = usb_gadget_unregister_driver(&printer_driver);
- if (status)
- ERROR(dev, "usb_gadget_unregister_driver %x\n", status);
-
+ usb_composite_unregister(&printer_driver);
unregister_chrdev_region(g_printer_devno, 1);
class_destroy(usb_gadget_class);
mutex_unlock(&usb_printer_gadget.lock_printer_io);
}
module_exit(cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Craig Nadler");
+MODULE_LICENSE("GPL");
projects / mirror_ubuntu-focal-kernel.git / commitdiff