staging: comedi: mite: document the remaining exported functions (b21f1fc8) · Commits · 戴 / test

drivers/staging/comedi/drivers/mite.c

+23 −0

Original line number	Diff line number	Diff line
		@@ -229,6 +229,10 @@ static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan)
		return readl(mite->mmio + MITE_DAR(mite_chan->channel));
		}

		/**
		* mite_bytes_in_transit() - Returns the number of unread bytes in the fifo.
		* @mite_chan: MITE dma channel.
		*/
		u32 mite_bytes_in_transit(struct mite_channel *mite_chan)
		{
		struct mite *mite = mite_chan->mite;
		@@ -349,6 +353,11 @@ static void mite_sync_output_dma(struct mite_channel *mite_chan,
		}
		}

		/**
		* mite_sync_dma() - Sync the MITE dma with the COMEDI async buffer.
		* @mite_chan: MITE dma channel.
		* @s: COMEDI subdevice.
		*/
		void mite_sync_dma(struct mite_channel mite_chan, struct comedi_subdevice s)
		{
		if (mite_chan->dir == COMEDI_INPUT)
		@@ -376,6 +385,14 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan)
		return status;
		}

		/**
		* mite_ack_linkc() - Check and ack the LINKC interrupt,
		* @mite_chan: MITE dma channel.
		* @s: COMEDI subdevice.
		* @sync: flag to force a mite_sync_dma().
		*
		* This will also ack the DONE interrupt if active.
		*/
		void mite_ack_linkc(struct mite_channel *mite_chan,
		struct comedi_subdevice *s,
		bool sync)
		@@ -399,6 +416,12 @@ void mite_ack_linkc(struct mite_channel *mite_chan,
		}
		EXPORT_SYMBOL_GPL(mite_ack_linkc);

		/**
		* mite_done() - Check is a MITE dma transfer is complete.
		* @mite_chan: MITE dma channel.
		*
		* This will also ack the DONE interrupt if active.
		*/
		int mite_done(struct mite_channel *mite_chan)
		{
		struct mite *mite = mite_chan->mite;

+5 −4

Original line number	Diff line number	Diff line
		@@ -60,11 +60,12 @@ struct mite {
		spinlock_t lock;
		};

		void mite_sync_dma(struct mite_channel mite_chan, struct comedi_subdevice s);
		u32 mite_bytes_in_transit(struct mite_channel *mite_chan);
		void mite_ack_linkc(struct mite_channel , struct comedi_subdevice ,
		u32 mite_bytes_in_transit(struct mite_channel *);

		void mite_sync_dma(struct mite_channel , struct comedi_subdevice );
		void mite_ack_linkc(struct mite_channel , struct comedi_subdevice s,
		bool sync);
		int mite_done(struct mite_channel *mite_chan);
		int mite_done(struct mite_channel *);

		void mite_dma_arm(struct mite_channel *);
		void mite_dma_disarm(struct mite_channel *);