1 /* SPDX-License-Identifier: GPL-1.0+ */ 2 /* 3 * Renesas USB driver 4 * 5 * Copyright (C) 2011 Renesas Solutions Corp. 6 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 7 */ 8 #ifndef RENESAS_USB_PIPE_H 9 #define RENESAS_USB_PIPE_H 10 11 #include "common.h" 12 #include "fifo.h" 13 14 /* 15 * struct 16 */ 17 struct usbhs_pipe { 18 u32 pipe_type; /* USB_ENDPOINT_XFER_xxx */ 19 20 struct usbhs_priv *priv; 21 struct usbhs_fifo *fifo; 22 struct list_head list; 23 24 int maxp; 25 26 u32 flags; 27 #define USBHS_PIPE_FLAGS_IS_USED (1 << 0) 28 #define USBHS_PIPE_FLAGS_IS_DIR_IN (1 << 1) 29 #define USBHS_PIPE_FLAGS_IS_DIR_HOST (1 << 2) 30 #define USBHS_PIPE_FLAGS_IS_RUNNING (1 << 3) 31 32 const struct usbhs_pkt_handle *handler; 33 34 void *mod_private; 35 }; 36 37 struct usbhs_pipe_info { 38 struct usbhs_pipe *pipe; 39 int size; /* array size of "pipe" */ 40 41 int (*dma_map_ctrl)(struct device *dma_dev, struct usbhs_pkt *pkt, 42 int map); 43 }; 44 45 /* 46 * pipe list 47 */ 48 #define __usbhs_for_each_pipe(start, pos, info, i) \ 49 for ((i) = start; \ 50 ((i) < (info)->size) && ((pos) = (info)->pipe + (i)); \ 51 (i)++) 52 53 #define usbhs_for_each_pipe(pos, priv, i) \ 54 __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i) 55 56 #define usbhs_for_each_pipe_with_dcp(pos, priv, i) \ 57 __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i) 58 59 /* 60 * data 61 */ 62 #define usbhs_priv_to_pipeinfo(pr) (&(pr)->pipe_info) 63 64 /* 65 * pipe control 66 */ 67 char *usbhs_pipe_name(struct usbhs_pipe *pipe); 68 struct usbhs_pipe 69 *usbhs_pipe_malloc(struct usbhs_priv *priv, int endpoint_type, int dir_in); 70 void usbhs_pipe_free(struct usbhs_pipe *pipe); 71 int usbhs_pipe_probe(struct usbhs_priv *priv); 72 void usbhs_pipe_remove(struct usbhs_priv *priv); 73 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe); 74 int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe); 75 int usbhs_pipe_is_running(struct usbhs_pipe *pipe); 76 void usbhs_pipe_running(struct usbhs_pipe *pipe, int running); 77 78 void usbhs_pipe_init(struct usbhs_priv *priv, 79 int (*dma_map_ctrl)(struct device *dma_dev, 80 struct usbhs_pkt *pkt, int map)); 81 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe); 82 void usbhs_pipe_clear(struct usbhs_pipe *pipe); 83 void usbhs_pipe_clear_without_sequence(struct usbhs_pipe *pipe, 84 int needs_bfre, int bfre_enable); 85 int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); 86 bool usbhs_pipe_contains_transmittable_data(struct usbhs_pipe *pipe); 87 void usbhs_pipe_enable(struct usbhs_pipe *pipe); 88 void usbhs_pipe_disable(struct usbhs_pipe *pipe); 89 void usbhs_pipe_stall(struct usbhs_pipe *pipe); 90 int usbhs_pipe_is_stall(struct usbhs_pipe *pipe); 91 void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len); 92 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); 93 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel, 94 u16 epnum, u16 maxp); 95 void usbhs_pipe_config_change_bfre(struct usbhs_pipe *pipe, int enable); 96 97 #define usbhs_pipe_sequence_data0(pipe) usbhs_pipe_data_sequence(pipe, 0) 98 #define usbhs_pipe_sequence_data1(pipe) usbhs_pipe_data_sequence(pipe, 1) 99 void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data); 100 101 #define usbhs_pipe_to_priv(p) ((p)->priv) 102 #define usbhs_pipe_number(p) (int)((p) - (p)->priv->pipe_info.pipe) 103 #define usbhs_pipe_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) 104 #define usbhs_pipe_to_fifo(p) ((p)->fifo) 105 #define usbhs_pipe_is_busy(p) usbhs_pipe_to_fifo(p) 106 107 #define usbhs_pipe_type(p) ((p)->pipe_type) 108 #define usbhs_pipe_type_is(p, t) ((p)->pipe_type == t) 109 110 /* 111 * dcp control 112 */ 113 struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv); 114 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe); 115 void usbhs_dcp_dir_for_host(struct usbhs_pipe *pipe, int dir_out); 116 117 #endif /* RENESAS_USB_PIPE_H */ 118