diff options
| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2018-11-29 10:52:43 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2018-12-07 16:31:45 +0100 |
| commit | ff8d75583487eb69bcb6f036088d979c76db3753 (patch) | |
| tree | 942df5b32b69a83c7b297b6eb372c1fbbec328c9 /drivers/usb/gadget/udc/udc-core.c | |
| parent | 687ab54560809e01a10652ef82dbac6ae72deb91 (diff) | |
usb: udc: implement DM versions of usb_gadget_initialize()/_release()/_handle_interrupt()
When DM_USB_GADGET the platform code for the USB device must be replaced by
calls to a USB device driver.
usb_gadget_initialize() probes the USB device driver.
usb_gadget_release() removes the USB device driver.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'drivers/usb/gadget/udc/udc-core.c')
| -rw-r--r-- | drivers/usb/gadget/udc/udc-core.c | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index f5c30dd750..34bea27ad8 100644 --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -18,7 +18,8 @@ #include <asm/cache.h> #include <asm/dma-mapping.h> #include <common.h> - +#include <dm.h> +#include <dm/device-internal.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -351,3 +352,44 @@ EXPORT_SYMBOL_GPL(usb_gadget_unregister_driver); MODULE_DESCRIPTION("UDC Framework"); MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); MODULE_LICENSE("GPL v2"); + +#if CONFIG_IS_ENABLED(DM_USB_GADGET) +#define MAX_UDC_DEVICES 4 +static struct udevice *dev_array[MAX_UDC_DEVICES]; +int usb_gadget_initialize(int index) +{ + int ret; + struct udevice *dev = NULL; + + if (index < 0 || index >= ARRAY_SIZE(dev_array)) + return -EINVAL; + if (dev_array[index]) + return 0; + ret = uclass_get_device(UCLASS_USB_DEV_GENERIC, index, &dev); + if (!dev || ret) { + pr_err("No USB device found\n"); + return -ENODEV; + } + dev_array[index] = dev; + return 0; +} + +int usb_gadget_release(int index) +{ + int ret; + + if (index < 0 || index >= ARRAY_SIZE(dev_array)) + return -EINVAL; + ret = device_remove(dev_array[index], DM_REMOVE_NORMAL); + if (!ret) + dev_array[index] = NULL; + return ret; +} + +int usb_gadget_handle_interrupts(int index) +{ + if (index < 0 || index >= ARRAY_SIZE(dev_array)) + return -EINVAL; + return dm_usb_gadget_handle_interrupts(dev_array[index]); +} +#endif |