diff options
author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2014-07-15 13:09:44 +0200 |
---|---|---|
committer | Felipe Balbi <balbi@ti.com> | 2014-07-16 12:14:05 -0500 |
commit | 8443f2d2b7782fef35fe579bf1eb612c24951486 (patch) | |
tree | 904e98cbbe3e0916af116f8f55754d994ce92e79 /drivers/usb/gadget/dbgp.c | |
parent | 8ecef00fe1f33658ee36e902dba6850b51312073 (diff) |
usb: gadget: Gadget directory cleanup - group legacy gadgets
The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the legacy gadgets (i.e. those not using configfs)
into a separate directory.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/dbgp.c')
-rw-r--r-- | drivers/usb/gadget/dbgp.c | 434 |
1 files changed, 0 insertions, 434 deletions
diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c deleted file mode 100644 index 986fc511a2e..00000000000 --- a/drivers/usb/gadget/dbgp.c +++ /dev/null @@ -1,434 +0,0 @@ -/* - * dbgp.c -- EHCI Debug Port device gadget - * - * Copyright (C) 2010 Stephane Duverger - * - * Released under the GPLv2. - */ - -/* verbose messages */ -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/module.h> -#include <linux/usb/ch9.h> -#include <linux/usb/gadget.h> - -#include "u_serial.h" - -#define DRIVER_VENDOR_ID 0x0525 /* NetChip */ -#define DRIVER_PRODUCT_ID 0xc0de /* undefined */ - -#define USB_DEBUG_MAX_PACKET_SIZE 8 -#define DBGP_REQ_EP0_LEN 128 -#define DBGP_REQ_LEN 512 - -static struct dbgp { - struct usb_gadget *gadget; - struct usb_request *req; - struct usb_ep *i_ep; - struct usb_ep *o_ep; -#ifdef CONFIG_USB_G_DBGP_SERIAL - struct gserial *serial; -#endif -} dbgp; - -static struct usb_device_descriptor device_desc = { - .bLength = sizeof device_desc, - .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), - .bDeviceClass = USB_CLASS_VENDOR_SPEC, - .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_ID), - .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_ID), - .bNumConfigurations = 1, -}; - -static struct usb_debug_descriptor dbg_desc = { - .bLength = sizeof dbg_desc, - .bDescriptorType = USB_DT_DEBUG, -}; - -static struct usb_endpoint_descriptor i_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .bEndpointAddress = USB_DIR_IN, -}; - -static struct usb_endpoint_descriptor o_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - .bmAttributes = USB_ENDPOINT_XFER_BULK, - .bEndpointAddress = USB_DIR_OUT, -}; - -#ifdef CONFIG_USB_G_DBGP_PRINTK -static int dbgp_consume(char *buf, unsigned len) -{ - char c; - - if (!len) - return 0; - - c = buf[len-1]; - if (c != 0) - buf[len-1] = 0; - - printk(KERN_NOTICE "%s%c", buf, c); - return 0; -} - -static void __disable_ep(struct usb_ep *ep) -{ - if (ep && ep->driver_data == dbgp.gadget) { - usb_ep_disable(ep); - ep->driver_data = NULL; - } -} - -static void dbgp_disable_ep(void) -{ - __disable_ep(dbgp.i_ep); - __disable_ep(dbgp.o_ep); -} - -static void dbgp_complete(struct usb_ep *ep, struct usb_request *req) -{ - int stp; - int err = 0; - int status = req->status; - - if (ep == dbgp.i_ep) { - stp = 1; - goto fail; - } - - if (status != 0) { - stp = 2; - goto release_req; - } - - dbgp_consume(req->buf, req->actual); - - req->length = DBGP_REQ_LEN; - err = usb_ep_queue(ep, req, GFP_ATOMIC); - if (err < 0) { - stp = 3; - goto release_req; - } - - return; - -release_req: - kfree(req->buf); - usb_ep_free_request(dbgp.o_ep, req); - dbgp_disable_ep(); -fail: - dev_dbg(&dbgp.gadget->dev, - "complete: failure (%d:%d) ==> %d\n", stp, err, status); -} - -static int dbgp_enable_ep_req(struct usb_ep *ep) -{ - int err, stp; - struct usb_request *req; - - req = usb_ep_alloc_request(ep, GFP_KERNEL); - if (!req) { - err = -ENOMEM; - stp = 1; - goto fail_1; - } - - req->buf = kmalloc(DBGP_REQ_LEN, GFP_KERNEL); - if (!req->buf) { - err = -ENOMEM; - stp = 2; - goto fail_2; - } - - req->complete = dbgp_complete; - req->length = DBGP_REQ_LEN; - err = usb_ep_queue(ep, req, GFP_ATOMIC); - if (err < 0) { - stp = 3; - goto fail_3; - } - - return 0; - -fail_3: - kfree(req->buf); -fail_2: - usb_ep_free_request(dbgp.o_ep, req); -fail_1: - dev_dbg(&dbgp.gadget->dev, - "enable ep req: failure (%d:%d)\n", stp, err); - return err; -} - -static int __enable_ep(struct usb_ep *ep, struct usb_endpoint_descriptor *desc) -{ - int err; - ep->desc = desc; - err = usb_ep_enable(ep); - ep->driver_data = dbgp.gadget; - return err; -} - -static int dbgp_enable_ep(void) -{ - int err, stp; - - err = __enable_ep(dbgp.i_ep, &i_desc); - if (err < 0) { - stp = 1; - goto fail_1; - } - - err = __enable_ep(dbgp.o_ep, &o_desc); - if (err < 0) { - stp = 2; - goto fail_2; - } - - err = dbgp_enable_ep_req(dbgp.o_ep); - if (err < 0) { - stp = 3; - goto fail_3; - } - - return 0; - -fail_3: - __disable_ep(dbgp.o_ep); -fail_2: - __disable_ep(dbgp.i_ep); -fail_1: - dev_dbg(&dbgp.gadget->dev, "enable ep: failure (%d:%d)\n", stp, err); - return err; -} -#endif - -static void dbgp_disconnect(struct usb_gadget *gadget) -{ -#ifdef CONFIG_USB_G_DBGP_PRINTK - dbgp_disable_ep(); -#else - gserial_disconnect(dbgp.serial); -#endif -} - -static void dbgp_unbind(struct usb_gadget *gadget) -{ -#ifdef CONFIG_USB_G_DBGP_SERIAL - kfree(dbgp.serial); -#endif - if (dbgp.req) { - kfree(dbgp.req->buf); - usb_ep_free_request(gadget->ep0, dbgp.req); - } - - gadget->ep0->driver_data = NULL; -} - -#ifdef CONFIG_USB_G_DBGP_SERIAL -static unsigned char tty_line; -#endif - -static int __init dbgp_configure_endpoints(struct usb_gadget *gadget) -{ - int stp; - - usb_ep_autoconfig_reset(gadget); - - dbgp.i_ep = usb_ep_autoconfig(gadget, &i_desc); - if (!dbgp.i_ep) { - stp = 1; - goto fail_1; - } - - dbgp.i_ep->driver_data = gadget; - i_desc.wMaxPacketSize = - __constant_cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE); - - dbgp.o_ep = usb_ep_autoconfig(gadget, &o_desc); - if (!dbgp.o_ep) { - dbgp.i_ep->driver_data = NULL; - stp = 2; - goto fail_2; - } - - dbgp.o_ep->driver_data = gadget; - o_desc.wMaxPacketSize = - __constant_cpu_to_le16(USB_DEBUG_MAX_PACKET_SIZE); - - dbg_desc.bDebugInEndpoint = i_desc.bEndpointAddress; - dbg_desc.bDebugOutEndpoint = o_desc.bEndpointAddress; - -#ifdef CONFIG_USB_G_DBGP_SERIAL - dbgp.serial->in = dbgp.i_ep; - dbgp.serial->out = dbgp.o_ep; - - dbgp.serial->in->desc = &i_desc; - dbgp.serial->out->desc = &o_desc; - - if (gserial_alloc_line(&tty_line)) { - stp = 3; - goto fail_3; - } - - return 0; - -fail_3: - dbgp.o_ep->driver_data = NULL; -#else - return 0; -#endif -fail_2: - dbgp.i_ep->driver_data = NULL; -fail_1: - dev_dbg(&dbgp.gadget->dev, "ep config: failure (%d)\n", stp); - return -ENODEV; -} - -static int __init dbgp_bind(struct usb_gadget *gadget, - struct usb_gadget_driver *driver) -{ - int err, stp; - - dbgp.gadget = gadget; - - dbgp.req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); - if (!dbgp.req) { - err = -ENOMEM; - stp = 1; - goto fail; - } - - dbgp.req->buf = kmalloc(DBGP_REQ_EP0_LEN, GFP_KERNEL); - if (!dbgp.req->buf) { - err = -ENOMEM; - stp = 2; - goto fail; - } - - dbgp.req->length = DBGP_REQ_EP0_LEN; - gadget->ep0->driver_data = gadget; - -#ifdef CONFIG_USB_G_DBGP_SERIAL - dbgp.serial = kzalloc(sizeof(struct gserial), GFP_KERNEL); - if (!dbgp.serial) { - stp = 3; - err = -ENOMEM; - goto fail; - } -#endif - err = dbgp_configure_endpoints(gadget); - if (err < 0) { - stp = 4; - goto fail; - } - - dev_dbg(&dbgp.gadget->dev, "bind: success\n"); - return 0; - -fail: - dev_dbg(&gadget->dev, "bind: failure (%d:%d)\n", stp, err); - dbgp_unbind(gadget); - return err; -} - -static void dbgp_setup_complete(struct usb_ep *ep, - struct usb_request *req) -{ - dev_dbg(&dbgp.gadget->dev, "setup complete: %d, %d/%d\n", - req->status, req->actual, req->length); -} - -static int dbgp_setup(struct usb_gadget *gadget, - const struct usb_ctrlrequest *ctrl) -{ - struct usb_request *req = dbgp.req; - u8 request = ctrl->bRequest; - u16 value = le16_to_cpu(ctrl->wValue); - u16 length = le16_to_cpu(ctrl->wLength); - int err = -EOPNOTSUPP; - void *data = NULL; - u16 len = 0; - - gadget->ep0->driver_data = gadget; - - if (request == USB_REQ_GET_DESCRIPTOR) { - switch (value>>8) { - case USB_DT_DEVICE: - dev_dbg(&dbgp.gadget->dev, "setup: desc device\n"); - len = sizeof device_desc; - data = &device_desc; - device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; - break; - case USB_DT_DEBUG: - dev_dbg(&dbgp.gadget->dev, "setup: desc debug\n"); - len = sizeof dbg_desc; - data = &dbg_desc; - break; - default: - goto fail; - } - err = 0; - } else if (request == USB_REQ_SET_FEATURE && - value == USB_DEVICE_DEBUG_MODE) { - dev_dbg(&dbgp.gadget->dev, "setup: feat debug\n"); -#ifdef CONFIG_USB_G_DBGP_PRINTK - err = dbgp_enable_ep(); -#else - err = gserial_connect(dbgp.serial, tty_line); -#endif - if (err < 0) - goto fail; - } else - goto fail; - - req->length = min(length, len); - req->zero = len < req->length; - if (data && req->length) - memcpy(req->buf, data, req->length); - - req->complete = dbgp_setup_complete; - return usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); - -fail: - dev_dbg(&dbgp.gadget->dev, - "setup: failure req %x v %x\n", request, value); - return err; -} - -static __refdata struct usb_gadget_driver dbgp_driver = { - .function = "dbgp", - .max_speed = USB_SPEED_HIGH, - .bind = dbgp_bind, - .unbind = dbgp_unbind, - .setup = dbgp_setup, - .disconnect = dbgp_disconnect, - .driver = { - .owner = THIS_MODULE, - .name = "dbgp" - }, -}; - -static int __init dbgp_init(void) -{ - return usb_gadget_probe_driver(&dbgp_driver); -} - -static void __exit dbgp_exit(void) -{ - usb_gadget_unregister_driver(&dbgp_driver); -#ifdef CONFIG_USB_G_DBGP_SERIAL - gserial_free_line(tty_line); -#endif -} - -MODULE_AUTHOR("Stephane Duverger"); -MODULE_LICENSE("GPL"); -module_init(dbgp_init); -module_exit(dbgp_exit); |