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usb: gadget: push iManufacturer into gadgets

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This patch pushes the iManufacturer module argument from composite into
each gadget. Once the user uses the module paramter, the string is
overwritten with the final value.

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2012-09-10 15:01:55 +02:00 committed by Felipe Balbi
parent 1cf0d26408
commit 03de9bf69c
2 changed files with 17 additions and 10 deletions
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20
drivers/usb/gadget/composite.c
View File

@ -32,10 +32,6 @@
* published in the device descriptor, either numbers or strings or both.
* String parameters are in UTF-8 (superset of ASCII's 7 bit characters).
*/
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");
@ -916,8 +912,7 @@ static int get_string(struct usb_composite_dev *cdev,
* check if the string has not been overridden.
*/
if (cdev->manufacturer_override == id)
str = iManufacturer ?: composite->iManufacturer ?:
composite_manufacturer;
str = composite->iManufacturer ?: composite_manufacturer;
else if (cdev->product_override == id)
str = iProduct ?: composite->iProduct;
else if (cdev->serial_override == id)
@ -1408,6 +1403,7 @@ static void update_unchanged_dev_desc(struct usb_device_descriptor *new,
__le16 idProduct;
__le16 bcdDevice;
u8 iSerialNumber;
u8 iManufacturer;
/*
* these variables may have been set in
@ -1417,6 +1413,7 @@ static void update_unchanged_dev_desc(struct usb_device_descriptor *new,
idProduct = new->idProduct;
bcdDevice = new->bcdDevice;
iSerialNumber = new->iSerialNumber;
iManufacturer = new->iManufacturer;
*new = *old;
if (idVendor)
@ -1427,6 +1424,8 @@ static void update_unchanged_dev_desc(struct usb_device_descriptor *new,
new->bcdDevice = bcdDevice;
if (iSerialNumber)
new->iSerialNumber = iSerialNumber;
if (iManufacturer)
new->iManufacturer = iManufacturer;
}
static struct usb_composite_driver *to_cdriver(struct usb_gadget_driver *gdrv)
@ -1487,9 +1486,8 @@ static int composite_bind(struct usb_gadget *gadget,
update_unchanged_dev_desc(&cdev->desc, composite->dev);
/* string overrides */
if (iManufacturer || !cdev->desc.iManufacturer) {
if (!iManufacturer && !composite->iManufacturer &&
!*composite_manufacturer)
if (!cdev->desc.iManufacturer) {
if (!composite->iManufacturer)
snprintf(composite_manufacturer,
sizeof composite_manufacturer,
"%s %s with %s",
@ -1706,4 +1704,8 @@ void usb_composite_overwrite_options(struct usb_composite_dev *cdev,
desc->iSerialNumber = dev_str[USB_GADGET_SERIAL_IDX].id;
dev_str[USB_GADGET_SERIAL_IDX].s = covr->serial_number;
}
if (covr->manufacturer) {
desc->iManufacturer = dev_str[USB_GADGET_MANUFACTURER_IDX].id;
dev_str[USB_GADGET_MANUFACTURER_IDX].s = covr->manufacturer;
}
}

7
include/linux/usb/composite.h
View File

@ -401,6 +401,7 @@ struct usb_composite_overwrite {
u16 idProduct;
u16 bcdDevice;
char *serial_number;
char *manufacturer;
};
#define USB_GADGET_COMPOSITE_OPTIONS() \
static struct usb_composite_overwrite coverwrite; \
@ -416,7 +417,11 @@ struct usb_composite_overwrite {
\
module_param_named(iSerialNumber, coverwrite.serial_number, charp, \
S_IRUGO); \
MODULE_PARM_DESC(iSerialNumber, "SerialNumber string")
MODULE_PARM_DESC(iSerialNumber, "SerialNumber string"); \
\
module_param_named(iManufacturer, coverwrite.manufacturer, charp, \
S_IRUGO); \
MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string")
void usb_composite_overwrite_options(struct usb_composite_dev *cdev,
struct usb_composite_overwrite *covr);