forked from Minki/linux
3edeee3893
driver has to re-use the limited pipe for each device/endpoint when it is USB host hub mode, since number of pipe has limitation. Then, each pipe should care own pipe sequence for next packet. This patch adds sequence control. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/*
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* Renesas USB driver
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*
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* Copyright (C) 2011 Renesas Solutions Corp.
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* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef RENESAS_USB_FIFO_H
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#define RENESAS_USB_FIFO_H
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#include <linux/interrupt.h>
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#include <linux/sh_dma.h>
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#include <asm/dma.h>
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#include "pipe.h"
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#define DMA_ADDR_INVALID (~(dma_addr_t)0)
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struct usbhs_fifo {
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char *name;
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u32 port; /* xFIFO */
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u32 sel; /* xFIFOSEL */
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u32 ctr; /* xFIFOCTR */
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struct usbhs_pipe *pipe;
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struct tasklet_struct tasklet;
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struct dma_chan *tx_chan;
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struct dma_chan *rx_chan;
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struct sh_dmae_slave tx_slave;
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struct sh_dmae_slave rx_slave;
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};
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struct usbhs_fifo_info {
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struct usbhs_fifo cfifo;
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struct usbhs_fifo d0fifo;
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struct usbhs_fifo d1fifo;
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};
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struct usbhs_pkt_handle;
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struct usbhs_pkt {
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struct list_head node;
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struct usbhs_pipe *pipe;
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struct usbhs_pkt_handle *handler;
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void (*done)(struct usbhs_priv *priv,
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struct usbhs_pkt *pkt);
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dma_addr_t dma;
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void *buf;
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int length;
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int trans;
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int actual;
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int zero;
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int sequence;
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};
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struct usbhs_pkt_handle {
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int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
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int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
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int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
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};
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/*
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* fifo
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*/
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int usbhs_fifo_probe(struct usbhs_priv *priv);
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void usbhs_fifo_remove(struct usbhs_priv *priv);
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void usbhs_fifo_init(struct usbhs_priv *priv);
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void usbhs_fifo_quit(struct usbhs_priv *priv);
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/*
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* packet info
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*/
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extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
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extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
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extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
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extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
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extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
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extern struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
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extern struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
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extern struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
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extern struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
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void usbhs_pkt_init(struct usbhs_pkt *pkt);
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void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
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void (*done)(struct usbhs_priv *priv,
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struct usbhs_pkt *pkt),
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void *buf, int len, int zero, int sequence);
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struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
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void usbhs_pkt_start(struct usbhs_pipe *pipe);
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#endif /* RENESAS_USB_FIFO_H */
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