From b647f55420310beb8f576e23f3b6a69745126f71 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 8 Aug 2016 09:41:33 -0600 Subject: misc: add "call" uclass op The call op requests that the callee pass a message to the underlying HW or device, wait for a response, and then pass back the response error code and message to the callee. It is useful for drivers that represent some kind of messaging or IPC channel to a remote device. Signed-off-by: Stephen Warren Acked-by: Simon Glass --- drivers/misc/misc-uclass.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/misc/misc-uclass.c b/drivers/misc/misc-uclass.c index 13a6ea5..d9eea3d 100644 --- a/drivers/misc/misc-uclass.c +++ b/drivers/misc/misc-uclass.c @@ -45,6 +45,17 @@ int misc_ioctl(struct udevice *dev, unsigned long request, void *buf) return ops->ioctl(dev, request, buf); } +int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size, + void *rx_msg, int rx_size) +{ + const struct misc_ops *ops = device_get_ops(dev); + + if (!ops->call) + return -ENOSYS; + + return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size); +} + UCLASS_DRIVER(misc) = { .id = UCLASS_MISC, .name = "misc", -- cgit v1.1