1d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* 2d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 3d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 4d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * Copyright (C) 2005 Mike Isely <isely@pobox.com> 5d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 6d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * This program is free software; you can redistribute it and/or modify 7d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * it under the terms of the GNU General Public License as published by 8d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * the Free Software Foundation; either version 2 of the License 9d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 10d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * This program is distributed in the hope that it will be useful, 11d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * but WITHOUT ANY WARRANTY; without even the implied warranty of 12d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * GNU General Public License for more details. 14d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 15d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * You should have received a copy of the GNU General Public License 16d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * along with this program; if not, write to the Free Software 17d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely * 19d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely */ 20d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely#ifndef __PVRUSB2_IO_H 21d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely#define __PVRUSB2_IO_H 22d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 23d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely#include <linux/usb.h> 24d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely#include <linux/list.h> 25d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 26d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselytypedef void (*pvr2_stream_callback)(void *); 27d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 28d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyenum pvr2_buffer_state { 29d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely pvr2_buffer_state_none = 0, // Not on any list 30d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely pvr2_buffer_state_idle = 1, // Buffer is ready to be used again 31d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely pvr2_buffer_state_queued = 2, // Buffer has been queued for filling 32d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely pvr2_buffer_state_ready = 3, // Buffer has data available 33d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely}; 34d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 35d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_stream; 36d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_buffer; 37d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 38ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Iselystruct pvr2_stream_stats { 39ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int buffers_in_queue; 40ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int buffers_in_idle; 41ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int buffers_in_ready; 42ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int buffers_processed; 43ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int buffers_failed; 44ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely unsigned int bytes_processed; 45ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely}; 46ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely 47d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Initialize / tear down stream structure */ 48d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_stream *pvr2_stream_create(void); 49d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyvoid pvr2_stream_destroy(struct pvr2_stream *); 50d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyvoid pvr2_stream_setup(struct pvr2_stream *, 51d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely struct usb_device *dev,int endpoint, 52d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely unsigned int tolerance); 53d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyvoid pvr2_stream_set_callback(struct pvr2_stream *, 54d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely pvr2_stream_callback func, 55d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely void *data); 56ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Iselyvoid pvr2_stream_get_stats(struct pvr2_stream *, 57ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely struct pvr2_stream_stats *, 58ad0992e97c5416e431e19dcfd4f6c84448dc1bc2Mike Isely int zero_counts); 59d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 60d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Query / set the nominal buffer count */ 61e61b6fc58b4a0b07f1ccfc67bf2b84a2848fcb2cMike Iselyint pvr2_stream_get_buffer_count(struct pvr2_stream *); 62d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_stream_set_buffer_count(struct pvr2_stream *,unsigned int); 63d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 64d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Get a pointer to a buffer that is either idle, ready, or is specified 65d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely named. */ 66d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_buffer *pvr2_stream_get_idle_buffer(struct pvr2_stream *); 67d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_buffer *pvr2_stream_get_ready_buffer(struct pvr2_stream *); 68d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselystruct pvr2_buffer *pvr2_stream_get_buffer(struct pvr2_stream *sp,int id); 69d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 70d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Find out how many buffers are idle or ready */ 71d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_stream_get_ready_count(struct pvr2_stream *); 72d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 73e61b6fc58b4a0b07f1ccfc67bf2b84a2848fcb2cMike Isely 74d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Kill all pending buffers and throw away any ready buffers as well */ 75d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyvoid pvr2_stream_kill(struct pvr2_stream *); 76d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 77d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Set up the actual storage for a buffer */ 78d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_buffer_set_buffer(struct pvr2_buffer *,void *ptr,unsigned int cnt); 79d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 80d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Find out size of data in the given ready buffer */ 81d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyunsigned int pvr2_buffer_get_count(struct pvr2_buffer *); 82d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 83d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Retrieve completion code for given ready buffer */ 84d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_buffer_get_status(struct pvr2_buffer *); 85d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 86d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Retrieve ID of given buffer */ 87d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_buffer_get_id(struct pvr2_buffer *); 88d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 89d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* Start reading into given buffer (kill it if needed) */ 90d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Iselyint pvr2_buffer_queue(struct pvr2_buffer *); 91d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 92d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely#endif /* __PVRUSB2_IO_H */ 93d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely 94d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely/* 95d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely Stuff for Emacs to see, in order to encourage consistent editing style: 96d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** Local Variables: *** 97d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** mode: c *** 98d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** fill-column: 75 *** 99d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** tab-width: 8 *** 100d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** c-basic-offset: 8 *** 101d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely *** End: *** 102d855497edbfbf9e19a17f4a1154bca69cb4bd9baMike Isely */ 103