162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-1.0+ */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Renesas USB driver 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 2011 Renesas Solutions Corp. 662306a36Sopenharmony_ci * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci#ifndef RENESAS_USB_FIFO_H 962306a36Sopenharmony_ci#define RENESAS_USB_FIFO_H 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <linux/interrupt.h> 1262306a36Sopenharmony_ci#include <linux/sh_dma.h> 1362306a36Sopenharmony_ci#include <linux/workqueue.h> 1462306a36Sopenharmony_ci#include <asm/dma.h> 1562306a36Sopenharmony_ci#include "pipe.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_cistruct usbhs_fifo { 1862306a36Sopenharmony_ci char *name; 1962306a36Sopenharmony_ci u32 port; /* xFIFO */ 2062306a36Sopenharmony_ci u32 sel; /* xFIFOSEL */ 2162306a36Sopenharmony_ci u32 ctr; /* xFIFOCTR */ 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci struct usbhs_pipe *pipe; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci struct dma_chan *tx_chan; 2662306a36Sopenharmony_ci struct dma_chan *rx_chan; 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci struct sh_dmae_slave tx_slave; 2962306a36Sopenharmony_ci struct sh_dmae_slave rx_slave; 3062306a36Sopenharmony_ci}; 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci#define USBHS_MAX_NUM_DFIFO 4 3362306a36Sopenharmony_cistruct usbhs_fifo_info { 3462306a36Sopenharmony_ci struct usbhs_fifo cfifo; 3562306a36Sopenharmony_ci struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO]; 3662306a36Sopenharmony_ci}; 3762306a36Sopenharmony_ci#define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n])) 3862306a36Sopenharmony_ci#define usbhs_for_each_dfifo(priv, dfifo, i) \ 3962306a36Sopenharmony_ci for ((i) = 0; \ 4062306a36Sopenharmony_ci ((i) < USBHS_MAX_NUM_DFIFO) && \ 4162306a36Sopenharmony_ci ((dfifo) = usbhsf_get_dnfifo(priv, (i))); \ 4262306a36Sopenharmony_ci (i)++) 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_cistruct usbhs_pkt_handle; 4562306a36Sopenharmony_cistruct usbhs_pkt { 4662306a36Sopenharmony_ci struct list_head node; 4762306a36Sopenharmony_ci struct usbhs_pipe *pipe; 4862306a36Sopenharmony_ci const struct usbhs_pkt_handle *handler; 4962306a36Sopenharmony_ci void (*done)(struct usbhs_priv *priv, 5062306a36Sopenharmony_ci struct usbhs_pkt *pkt); 5162306a36Sopenharmony_ci struct work_struct work; 5262306a36Sopenharmony_ci dma_addr_t dma; 5362306a36Sopenharmony_ci const struct dmaengine_result *dma_result; 5462306a36Sopenharmony_ci void *buf; 5562306a36Sopenharmony_ci int length; 5662306a36Sopenharmony_ci int trans; 5762306a36Sopenharmony_ci int actual; 5862306a36Sopenharmony_ci int zero; 5962306a36Sopenharmony_ci int sequence; 6062306a36Sopenharmony_ci}; 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_cistruct usbhs_pkt_handle { 6362306a36Sopenharmony_ci int (*prepare)(struct usbhs_pkt *pkt, int *is_done); 6462306a36Sopenharmony_ci int (*try_run)(struct usbhs_pkt *pkt, int *is_done); 6562306a36Sopenharmony_ci int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); 6662306a36Sopenharmony_ci}; 6762306a36Sopenharmony_ci 6862306a36Sopenharmony_ci/* 6962306a36Sopenharmony_ci * fifo 7062306a36Sopenharmony_ci */ 7162306a36Sopenharmony_ciint usbhs_fifo_probe(struct usbhs_priv *priv); 7262306a36Sopenharmony_civoid usbhs_fifo_remove(struct usbhs_priv *priv); 7362306a36Sopenharmony_civoid usbhs_fifo_init(struct usbhs_priv *priv); 7462306a36Sopenharmony_civoid usbhs_fifo_quit(struct usbhs_priv *priv); 7562306a36Sopenharmony_civoid usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe); 7662306a36Sopenharmony_ci 7762306a36Sopenharmony_ci/* 7862306a36Sopenharmony_ci * packet info 7962306a36Sopenharmony_ci */ 8062306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; 8162306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; 8262306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; 8362306a36Sopenharmony_ci 8462306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; 8562306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; 8662306a36Sopenharmony_ci 8762306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler; 8862306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler; 8962306a36Sopenharmony_ci 9062306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler; 9162306a36Sopenharmony_ciextern const struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler; 9262306a36Sopenharmony_ci 9362306a36Sopenharmony_civoid usbhs_pkt_init(struct usbhs_pkt *pkt); 9462306a36Sopenharmony_civoid usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, 9562306a36Sopenharmony_ci void (*done)(struct usbhs_priv *priv, 9662306a36Sopenharmony_ci struct usbhs_pkt *pkt), 9762306a36Sopenharmony_ci void *buf, int len, int zero, int sequence); 9862306a36Sopenharmony_cistruct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); 9962306a36Sopenharmony_civoid usbhs_pkt_start(struct usbhs_pipe *pipe); 10062306a36Sopenharmony_cistruct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe); 10162306a36Sopenharmony_ci 10262306a36Sopenharmony_ci#endif /* RENESAS_USB_FIFO_H */ 103