1 /* 2 * Renesas USB driver 3 * 4 * Copyright (C) 2011 Renesas Solutions Corp. 5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 15 * 16 */ 17 #ifndef RENESAS_USB_PIPE_H 18 #define RENESAS_USB_PIPE_H 19 20 #include "common.h" 21 #include "fifo.h" 22 23 /* 24 * struct 25 */ 26 struct usbhs_pipe { 27 u32 pipe_type; /* USB_ENDPOINT_XFER_xxx */ 28 29 struct usbhs_priv *priv; 30 struct usbhs_fifo *fifo; 31 struct list_head list; 32 33 int maxp; 34 35 u32 flags; 36 #define USBHS_PIPE_FLAGS_IS_USED (1 << 0) 37 #define USBHS_PIPE_FLAGS_IS_DIR_IN (1 << 1) 38 #define USBHS_PIPE_FLAGS_IS_DIR_HOST (1 << 2) 39 #define USBHS_PIPE_FLAGS_IS_RUNNING (1 << 3) 40 41 struct usbhs_pkt_handle *handler; 42 43 void *mod_private; 44 }; 45 46 struct usbhs_pipe_info { 47 struct usbhs_pipe *pipe; 48 int size; /* array size of "pipe" */ 49 int bufnmb_last; /* FIXME : driver needs good allocator */ 50 51 int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map); 52 }; 53 54 /* 55 * pipe list 56 */ 57 #define __usbhs_for_each_pipe(start, pos, info, i) \ 58 for ((i) = start; \ 59 ((i) < (info)->size) && ((pos) = (info)->pipe + (i)); \ 60 (i)++) 61 62 #define usbhs_for_each_pipe(pos, priv, i) \ 63 __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i) 64 65 #define usbhs_for_each_pipe_with_dcp(pos, priv, i) \ 66 __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i) 67 68 /* 69 * data 70 */ 71 #define usbhs_priv_to_pipeinfo(pr) (&(pr)->pipe_info) 72 73 /* 74 * pipe control 75 */ 76 char *usbhs_pipe_name(struct usbhs_pipe *pipe); 77 struct usbhs_pipe 78 *usbhs_pipe_malloc(struct usbhs_priv *priv, int endpoint_type, int dir_in); 79 void usbhs_pipe_free(struct usbhs_pipe *pipe); 80 int usbhs_pipe_probe(struct usbhs_priv *priv); 81 void usbhs_pipe_remove(struct usbhs_priv *priv); 82 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe); 83 int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe); 84 int usbhs_pipe_is_running(struct usbhs_pipe *pipe); 85 void usbhs_pipe_running(struct usbhs_pipe *pipe, int running); 86 87 void usbhs_pipe_init(struct usbhs_priv *priv, 88 int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map)); 89 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe); 90 void usbhs_pipe_clear(struct usbhs_pipe *pipe); 91 int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe); 92 void usbhs_pipe_enable(struct usbhs_pipe *pipe); 93 void usbhs_pipe_disable(struct usbhs_pipe *pipe); 94 void usbhs_pipe_stall(struct usbhs_pipe *pipe); 95 int usbhs_pipe_is_stall(struct usbhs_pipe *pipe); 96 void usbhs_pipe_set_trans_count_if_bulk(struct usbhs_pipe *pipe, int len); 97 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); 98 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel, 99 u16 epnum, u16 maxp); 100 void usbhs_pipe_config_change_bfre(struct usbhs_pipe *pipe, int enable); 101 102 #define usbhs_pipe_sequence_data0(pipe) usbhs_pipe_data_sequence(pipe, 0) 103 #define usbhs_pipe_sequence_data1(pipe) usbhs_pipe_data_sequence(pipe, 1) 104 void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data); 105 106 #define usbhs_pipe_to_priv(p) ((p)->priv) 107 #define usbhs_pipe_number(p) (int)((p) - (p)->priv->pipe_info.pipe) 108 #define usbhs_pipe_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) 109 #define usbhs_pipe_to_fifo(p) ((p)->fifo) 110 #define usbhs_pipe_is_busy(p) usbhs_pipe_to_fifo(p) 111 112 #define usbhs_pipe_type(p) ((p)->pipe_type) 113 #define usbhs_pipe_type_is(p, t) ((p)->pipe_type == t) 114 115 /* 116 * dcp control 117 */ 118 struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv); 119 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe); 120 void usbhs_dcp_dir_for_host(struct usbhs_pipe *pipe, int dir_out); 121 122 #endif /* RENESAS_USB_PIPE_H */ 123