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1250413a81
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Rob Herring <robh@kernel.org> Cc: Simon Horman <horms+renesas@verge.net.au> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Chanwoo Choi <cw00.choi@samsung.com> Cc: Johan Hovold <johan@kernel.org> Cc: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Cc: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-1.0+
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/*
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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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#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 <linux/workqueue.h>
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#include <asm/dma.h>
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#include "pipe.h"
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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 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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#define USBHS_MAX_NUM_DFIFO 4
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struct usbhs_fifo_info {
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struct usbhs_fifo cfifo;
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struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
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};
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#define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n]))
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#define usbhs_for_each_dfifo(priv, dfifo, i) \
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for ((i) = 0; \
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((i) < USBHS_MAX_NUM_DFIFO) && \
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((dfifo) = usbhsf_get_dnfifo(priv, (i))); \
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(i)++)
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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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const 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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struct work_struct work;
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dma_addr_t dma;
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dma_cookie_t cookie;
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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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void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe);
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/*
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* packet info
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*/
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extern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
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extern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
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extern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
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extern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
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extern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
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extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
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extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
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extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
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extern const 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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