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102 lines
2.8 KiB
102 lines
2.8 KiB
/* 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 <[email protected]> |
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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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const struct dmaengine_result *dma_result; |
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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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struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe); |
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#endif /* RENESAS_USB_FIFO_H */
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