diff options
| author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2024-06-14 02:51:16 +0200 |
|---|---|---|
| committer | Mattijs Korpershoek <mkorpershoek@baylibre.com> | 2024-07-05 14:06:05 +0200 |
| commit | d36ef5cbedd08e9a11c6a719d853f1003173133e (patch) | |
| tree | 124a7515e90a5b18c5201ed519c78ac478a15d2c | |
| parent | 1918b8010c321c939fdedd6e461ccac87e0d3415 (diff) | |
usb: gadget: Introduce handle_interrupts ops to USB_GADGET_GENERIC uclass
Introduce .ops for USB_GADGET_GENERIC uclass. The first new ops is
.handle_interrupts which must be implemented by DM capable USB gadget
controller drivers and must implement interrupt handling similar to
dm_usb_gadget_handle_interrupts(). This patch currently provides weak
dm_usb_gadget_handle_interrupts() implementation which is overridden by
the drivers, but this will be removed once conversion to handle_interrupts
callback is complete.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # vim3
Link: https://lore.kernel.org/r/20240614005309.34433-2-marek.vasut+renesas@mailbox.org
[mkorpershoek: fixed trivial typo in commit message]
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
| -rw-r--r-- | drivers/usb/gadget/udc/udc-uclass.c | 24 | ||||
| -rw-r--r-- | include/linux/usb/gadget.h | 8 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/udc-uclass.c b/drivers/usb/gadget/udc/udc-uclass.c index 5dc23a55bb5..2320039fe3b 100644 --- a/drivers/usb/gadget/udc/udc-uclass.c +++ b/drivers/usb/gadget/udc/udc-uclass.c @@ -12,6 +12,25 @@ #include <linux/usb/gadget.h> #if CONFIG_IS_ENABLED(DM_USB_GADGET) +static inline const struct usb_gadget_generic_ops * +usb_gadget_generic_dev_ops(struct udevice *dev) +{ + return (const struct usb_gadget_generic_ops *)dev->driver->ops; +} + +__weak int dm_usb_gadget_handle_interrupts(struct udevice *dev) +{ + const struct usb_gadget_generic_ops *ops; + + ops = usb_gadget_generic_dev_ops(dev); + if (!ops) + return -EFAULT; + if (!ops->handle_interrupts) + return -ENOSYS; + + return ops->handle_interrupts(dev); +} + int udc_device_get_by_index(int index, struct udevice **udev) { struct udevice *dev = NULL; @@ -54,6 +73,11 @@ int udc_device_put(struct udevice *udev) { return board_usb_cleanup(legacy_index, USB_INIT_DEVICE); } + +__weak int dm_usb_gadget_handle_interrupts(struct udevice *dev) +{ + return 0; +} #endif #if CONFIG_IS_ENABLED(DM) diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 36572be89e6..cf2161603d6 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -971,6 +971,14 @@ extern void usb_ep_autoconfig_reset(struct usb_gadget *); extern int dm_usb_gadget_handle_interrupts(struct udevice *); /** + * struct usb_gadget_generic_ops - The functions that a gadget driver must implement. + * @handle_interrupts: Handle UDC interrupts. + */ +struct usb_gadget_generic_ops { + int (*handle_interrupts)(struct udevice *udevice); +}; + +/** * udc_device_get_by_index() - Get UDC udevice by index * @index: UDC device index * @udev: UDC udevice matching the index (if found) |