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path: root/drivers/usb/gadget/printer.c
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Diffstat (limited to 'drivers/usb/gadget/printer.c')
-rw-r--r--drivers/usb/gadget/printer.c173
1 files changed, 71 insertions, 102 deletions
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index f1f9290a2f4..e156e3f2672 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -22,7 +22,6 @@
#include <linux/timer.h>
#include <linux/list.h>
#include <linux/interrupt.h>
-#include <linux/utsname.h>
#include <linux/device.h>
#include <linux/moduleparam.h>
#include <linux/fs.h>
@@ -38,25 +37,13 @@
#include <asm/unaligned.h>
#include <linux/usb/ch9.h>
+#include <linux/usb/composite.h>
#include <linux/usb/gadget.h>
#include <linux/usb/g_printer.h>
#include "gadget_chips.h"
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module. So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * 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"
-
-/*-------------------------------------------------------------------------*/
+USB_GADGET_COMPOSITE_OPTIONS();
#define DRIVER_DESC "Printer Gadget"
#define DRIVER_VERSION "2007 OCT 06"
@@ -120,8 +107,7 @@ static struct printer_dev usb_printer_gadget;
* parameters are in UTF-8 (superset of ASCII's 7 bit characters).
*/
-static char *iSerialNum;
-module_param(iSerialNum, charp, S_IRUGO);
+module_param_named(iSerialNum, coverwrite.serial_number, charp, S_IRUGO);
MODULE_PARM_DESC(iSerialNum, "1");
static char *iPNPstring;
@@ -141,18 +127,10 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR);
* descriptors are built on demand.
*/
-#define STRING_MANUFACTURER 1
-#define STRING_PRODUCT 2
-#define STRING_SERIALNUM 3
-
/* holds our biggest descriptor */
#define USB_DESC_BUFSIZE 256
#define USB_BUFSIZE 8192
-/* This device advertises one configuration. */
-#define DEV_CONFIG_VALUE 1
-#define PRINTER_INTERFACE 0
-
static struct usb_device_descriptor device_desc = {
.bLength = sizeof device_desc,
.bDescriptorType = USB_DT_DEVICE,
@@ -162,16 +140,12 @@ static struct usb_device_descriptor device_desc = {
.bDeviceProtocol = 0,
.idVendor = cpu_to_le16(PRINTER_VENDOR_NUM),
.idProduct = cpu_to_le16(PRINTER_PRODUCT_NUM),
- .iManufacturer = STRING_MANUFACTURER,
- .iProduct = STRING_PRODUCT,
- .iSerialNumber = STRING_SERIALNUM,
.bNumConfigurations = 1
};
static struct usb_interface_descriptor intf_desc = {
.bLength = sizeof intf_desc,
.bDescriptorType = USB_DT_INTERFACE,
- .bInterfaceNumber = PRINTER_INTERFACE,
.bNumEndpoints = 2,
.bInterfaceClass = USB_CLASS_PRINTER,
.bInterfaceSubClass = 1, /* Printer Sub-Class */
@@ -252,7 +226,6 @@ static const struct usb_descriptor_header *otg_desc[] = {
/* descriptors that are built on-demand */
-static char manufacturer [50];
static char product_desc [40] = DRIVER_DESC;
static char serial_num [40] = "1";
static char pnp_string [1024] =
@@ -260,9 +233,9 @@ static char pnp_string [1024] =
/* static strings, in UTF-8 */
static struct usb_string strings [] = {
- { STRING_MANUFACTURER, manufacturer, },
- { STRING_PRODUCT, product_desc, },
- { STRING_SERIALNUM, serial_num, },
+ [USB_GADGET_MANUFACTURER_IDX].s = "",
+ [USB_GADGET_PRODUCT_IDX].s = product_desc,
+ [USB_GADGET_SERIAL_IDX].s = serial_num,
{ } /* end of list */
};
@@ -871,25 +844,13 @@ static int set_interface(struct printer_dev *dev, unsigned number)
int result = 0;
/* Free the current interface */
- switch (dev->interface) {
- case PRINTER_INTERFACE:
- printer_reset_interface(dev);
- break;
- }
+ printer_reset_interface(dev);
- switch (number) {
- case PRINTER_INTERFACE:
- result = set_printer_interface(dev);
- if (result) {
- printer_reset_interface(dev);
- } else {
- dev->interface = PRINTER_INTERFACE;
- }
- break;
- default:
- result = -EINVAL;
- /* FALL THROUGH */
- }
+ result = set_printer_interface(dev);
+ if (result)
+ printer_reset_interface(dev);
+ else
+ dev->interface = number;
if (!result)
INFO(dev, "Using interface %x\n", number);
@@ -972,7 +933,7 @@ static int printer_func_setup(struct usb_function *f,
switch (ctrl->bRequest) {
case 0: /* Get the IEEE-1284 PNP String */
/* Only one printer interface is supported. */
- if ((wIndex>>8) != PRINTER_INTERFACE)
+ if ((wIndex>>8) != dev->interface)
break;
value = (pnp_string[0]<<8)|pnp_string[1];
@@ -983,7 +944,7 @@ static int printer_func_setup(struct usb_function *f,
case 1: /* Get Port Status */
/* Only one printer interface is supported. */
- if (wIndex != PRINTER_INTERFACE)
+ if (wIndex != dev->interface)
break;
*(u8 *)req->buf = dev->printer_status;
@@ -992,7 +953,7 @@ static int printer_func_setup(struct usb_function *f,
case 2: /* Soft Reset */
/* Only one printer interface is supported. */
- if (wIndex != PRINTER_INTERFACE)
+ if (wIndex != dev->interface)
break;
printer_soft_reset(dev);
@@ -1020,6 +981,37 @@ unknown:
static int __init printer_func_bind(struct usb_configuration *c,
struct usb_function *f)
{
+ struct printer_dev *dev = container_of(f, struct printer_dev, function);
+ struct usb_composite_dev *cdev = c->cdev;
+ struct usb_ep *in_ep, *out_ep;
+ int id;
+
+ id = usb_interface_id(c, f);
+ if (id < 0)
+ return id;
+ intf_desc.bInterfaceNumber = id;
+
+ /* all we really need is bulk IN/OUT */
+ in_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_in_desc);
+ if (!in_ep) {
+autoconf_fail:
+ dev_err(&cdev->gadget->dev, "can't autoconfigure on %s\n",
+ cdev->gadget->name);
+ return -ENODEV;
+ }
+ in_ep->driver_data = in_ep; /* claim */
+
+ out_ep = usb_ep_autoconfig(cdev->gadget, &fs_ep_out_desc);
+ if (!out_ep)
+ goto autoconf_fail;
+ out_ep->driver_data = out_ep; /* claim */
+
+ /* assumes that all endpoints are dual-speed */
+ hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
+ hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
+
+ dev->in_ep = in_ep;
+ dev->out_ep = out_ep;
return 0;
}
@@ -1035,7 +1027,8 @@ static int printer_func_set_alt(struct usb_function *f,
int ret = -ENOTSUPP;
if (!alt)
- ret = set_interface(dev, PRINTER_INTERFACE);
+ ret = set_interface(dev, intf);
+
return ret;
}
@@ -1107,13 +1100,13 @@ 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;
- int gcnum;
size_t len;
u32 i;
struct usb_request *req;
+ usb_ep_autoconfig_reset(gadget);
+
dev = &usb_printer_gadget;
dev->function.name = shortname;
@@ -1125,6 +1118,10 @@ static int __init printer_bind_config(struct usb_configuration *c)
dev->function.set_alt = printer_func_set_alt;
dev->function.disable = printer_func_disable;
+ status = usb_add_function(c, &dev->function);
+ if (status)
+ return status;
+
/* Setup the sysfs files for the printer gadget. */
dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno,
NULL, "g_printer");
@@ -1145,23 +1142,6 @@ static int __init printer_bind_config(struct usb_configuration *c)
goto fail;
}
- gcnum = usb_gadget_controller_number(gadget);
- if (gcnum >= 0) {
- device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum);
- } else {
- dev_warn(&gadget->dev, "controller '%s' not recognized\n",
- gadget->name);
- /* unrecognized, but safe unless bulk is REALLY quirky */
- device_desc.bcdDevice =
- cpu_to_le16(0xFFFF);
- }
- snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s",
- init_utsname()->sysname, init_utsname()->release,
- gadget->name);
-
- if (iSerialNum)
- strlcpy(serial_num, iSerialNum, sizeof serial_num);
-
if (iPNPstring)
strlcpy(&pnp_string[2], iPNPstring, (sizeof pnp_string)-2);
@@ -1169,26 +1149,6 @@ static int __init printer_bind_config(struct usb_configuration *c)
pnp_string[0] = (len >> 8) & 0xFF;
pnp_string[1] = len & 0xFF;
- /* all we really need is bulk IN/OUT */
- usb_ep_autoconfig_reset(gadget);
- in_ep = usb_ep_autoconfig(gadget, &fs_ep_in_desc);
- if (!in_ep) {
-autoconf_fail:
- dev_err(&gadget->dev, "can't autoconfigure on %s\n",
- gadget->name);
- return -ENODEV;
- }
- in_ep->driver_data = in_ep; /* claim */
-
- out_ep = usb_ep_autoconfig(gadget, &fs_ep_out_desc);
- if (!out_ep)
- goto autoconf_fail;
- out_ep->driver_data = out_ep; /* claim */
-
- /* assumes that all endpoints are dual-speed */
- hs_ep_in_desc.bEndpointAddress = fs_ep_in_desc.bEndpointAddress;
- hs_ep_out_desc.bEndpointAddress = fs_ep_out_desc.bEndpointAddress;
-
usb_gadget_set_selfpowered(gadget);
if (gadget->is_otg) {
@@ -1215,9 +1175,6 @@ autoconf_fail:
dev->current_rx_bytes = 0;
dev->current_rx_buf = NULL;
- dev->in_ep = in_ep;
- dev->out_ep = out_ep;
-
for (i = 0; i < QLEN; i++) {
req = printer_req_alloc(dev->in_ep, USB_BUFSIZE, GFP_KERNEL);
if (!req) {
@@ -1250,8 +1207,6 @@ autoconf_fail:
dev->gadget = gadget;
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:
@@ -1266,14 +1221,28 @@ static int printer_unbind(struct usb_composite_dev *cdev)
static int __init printer_bind(struct usb_composite_dev *cdev)
{
- return usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
+ int ret;
+
+ ret = usb_string_ids_tab(cdev, strings);
+ if (ret < 0)
+ return ret;
+ device_desc.iManufacturer = strings[USB_GADGET_MANUFACTURER_IDX].id;
+ device_desc.iProduct = strings[USB_GADGET_PRODUCT_IDX].id;
+ device_desc.iSerialNumber = strings[USB_GADGET_SERIAL_IDX].id;
+
+ ret = usb_add_config(cdev, &printer_cfg_driver, printer_bind_config);
+ if (ret)
+ return ret;
+ usb_composite_overwrite_options(cdev, &coverwrite);
+ return ret;
}
-static struct usb_composite_driver printer_driver = {
+static __refdata struct usb_composite_driver printer_driver = {
.name = shortname,
.dev = &device_desc,
.strings = dev_strings,
.max_speed = USB_SPEED_HIGH,
+ .bind = printer_bind,
.unbind = printer_unbind,
};
@@ -1297,7 +1266,7 @@ init(void)
return status;
}
- status = usb_composite_probe(&printer_driver, printer_bind);
+ status = usb_composite_probe(&printer_driver);
if (status) {
class_destroy(usb_gadget_class);
unregister_chrdev_region(g_printer_devno, 1);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-17 16:29:18 +0000