42 void dvb_ringbuffer_init(struct dvb_ringbuffer *rbuf, void *data, size_t len)  in dvb_ringbuffer_init()  argument
46 	rbuf->size=len;  in dvb_ringbuffer_init()
111 ssize_t dvb_ringbuffer_read_user(struct dvb_ringbuffer *rbuf, u8 __user *buf, size_t len)  in dvb_ringbuffer_read_user()  argument
113 	size_t todo = len;  in dvb_ringbuffer_read_user()
116 	split = (rbuf->pread + len > rbuf->size) ? rbuf->size - rbuf->pread : 0;  in dvb_ringbuffer_read_user()
129 	return len;  in dvb_ringbuffer_read_user()
132 void dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len)  in dvb_ringbuffer_read()  argument
134 	size_t todo = len;  in dvb_ringbuffer_read()
137 	split = (rbuf->pread + len > rbuf->size) ? rbuf->size - rbuf->pread : 0;  in dvb_ringbuffer_read()
150 ssize_t dvb_ringbuffer_write(struct dvb_ringbuffer *rbuf, const u8 *buf, size_t len)  in dvb_ringbuffer_write()  argument
152 	size_t todo = len;  in dvb_ringbuffer_write()
155 	split = (rbuf->pwrite + len > rbuf->size) ? rbuf->size - rbuf->pwrite : 0;  in dvb_ringbuffer_write()
166 	return len;  in dvb_ringbuffer_write()
170 				  const u8 __user *buf, size_t len)  in dvb_ringbuffer_write_user()  argument
173 	size_t todo = len;  in dvb_ringbuffer_write_user()
176 	split = (rbuf->pwrite + len > rbuf->size) ? rbuf->size - rbuf->pwrite : 0;  in dvb_ringbuffer_write_user()
181 			return len - todo;  in dvb_ringbuffer_write_user()
188 		return len - todo;  in dvb_ringbuffer_write_user()
191 	return len;  in dvb_ringbuffer_write_user()
194 ssize_t dvb_ringbuffer_pkt_write(struct dvb_ringbuffer *rbuf, u8* buf, size_t len)  in dvb_ringbuffer_pkt_write()  argument
199 	DVB_RINGBUFFER_WRITE_BYTE(rbuf, len >> 8);  in dvb_ringbuffer_pkt_write()
200 	DVB_RINGBUFFER_WRITE_BYTE(rbuf, len & 0xff);  in dvb_ringbuffer_pkt_write()
202 	status = dvb_ringbuffer_write(rbuf, buf, len);  in dvb_ringbuffer_pkt_write()
209 				int offset, u8 __user *buf, size_t len)  in dvb_ringbuffer_pkt_read_user()  argument
218 	if ((offset + len) > pktlen) len = pktlen - offset;  in dvb_ringbuffer_pkt_read_user()
221 	todo = len;  in dvb_ringbuffer_pkt_read_user()
222 	split = ((idx + len) > rbuf->size) ? rbuf->size - idx : 0;  in dvb_ringbuffer_pkt_read_user()
233 	return len;  in dvb_ringbuffer_pkt_read_user()
237 				int offset, u8* buf, size_t len)  in dvb_ringbuffer_pkt_read()  argument
246 	if ((offset + len) > pktlen) len = pktlen - offset;  in dvb_ringbuffer_pkt_read()
249 	todo = len;  in dvb_ringbuffer_pkt_read()
250 	split = ((idx + len) > rbuf->size) ? rbuf->size - idx : 0;  in dvb_ringbuffer_pkt_read()
258 	return len;  in dvb_ringbuffer_pkt_read()