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 u32 flags; 34 #define USBHS_PIPE_FLAGS_IS_USED (1 << 0) 35 #define USBHS_PIPE_FLAGS_IS_DIR_IN (1 << 1) 36 #define USBHS_PIPE_FLAGS_IS_DIR_HOST (1 << 2) 37 38 void *mod_private; 39 }; 40 41 struct usbhs_pipe_info { 42 struct usbhs_pipe *pipe; 43 int size; /* array size of "pipe" */ 44 int bufnmb_last; /* FIXME : driver needs good allocator */ 45 46 void (*done)(struct usbhs_pkt *pkt); 47 int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map); 48 }; 49 50 /* 51 * pipe list 52 */ 53 #define __usbhs_for_each_pipe(start, pos, info, i) \ 54 for (i = start, pos = (info)->pipe; \ 55 i < (info)->size; \ 56 i++, pos = (info)->pipe + i) 57 58 #define usbhs_for_each_pipe(pos, priv, i) \ 59 __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i) 60 61 #define usbhs_for_each_pipe_with_dcp(pos, priv, i) \ 62 __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i) 63 64 /* 65 * data 66 */ 67 #define usbhs_priv_to_pipeinfo(pr) (&(pr)->pipe_info) 68 69 /* 70 * usb request 71 */ 72 void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req); 73 void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req); 74 75 /* 76 * pipe control 77 */ 78 struct usbhs_pipe 79 *usbhs_pipe_malloc(struct usbhs_priv *priv, 80 const struct usb_endpoint_descriptor *desc); 81 int usbhs_pipe_probe(struct usbhs_priv *priv); 82 void usbhs_pipe_remove(struct usbhs_priv *priv); 83 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe); 84 int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe); 85 void usbhs_pipe_init(struct usbhs_priv *priv, 86 void (*done)(struct usbhs_pkt *pkt), 87 int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map)); 88 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe); 89 void usbhs_pipe_clear_sequence(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 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo); 96 97 #define usbhs_pipe_to_priv(p) ((p)->priv) 98 #define usbhs_pipe_number(p) (int)((p) - (p)->priv->pipe_info.pipe) 99 #define usbhs_pipe_is_dcp(p) ((p)->priv->pipe_info.pipe == (p)) 100 #define usbhs_pipe_to_fifo(p) ((p)->fifo) 101 #define usbhs_pipe_is_busy(p) usbhs_pipe_to_fifo(p) 102 103 /* 104 * dcp control 105 */ 106 struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv); 107 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe); 108 109 #endif /* RENESAS_USB_PIPE_H */ 110