| /* sdi.h |
| * |
| * Shared header file for the Linux user-space API for |
| * Linear Systems Ltd. SMPTE 259M-C interface boards. |
| * |
| * Copyright (C) 2004-2009 Linear Systems Ltd. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * 3. Neither the name of Linear Systems Ltd. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY LINEAR SYSTEMS LTD. "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL LINEAR SYSTEMS LTD. OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
| * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Linear Systems can be contacted at <http://www.linsys.ca/>. |
| * |
| */ |
| |
| #ifndef _SDI_H |
| #define _SDI_H |
| |
| /* Driver info */ |
| #define SDI_DRIVER_NAME "sdi" |
| |
| #define SDI_MAJOR 121 /* Set to 0 for dynamic allocation. |
| * Otherwise, 121 is available. |
| * See /usr/src/linux/Documentation/devices.txt */ |
| |
| #define SDI_TX_BUFFERS_MIN 2 /* This must be at least 2 */ |
| /* The minimum transmit buffer size must be positive, divisible by 4, |
| * and large enough that the buffers aren't transferred to the onboard FIFOs |
| * too quickly for the machine to handle the interrupts. |
| * This is especially a problem at startup, when the FIFOs are empty. |
| * Relevant factors include onboard FIFO size, PCI bus throughput, |
| * processor speed, and interrupt latency. */ |
| #define SDI_TX_BUFSIZE_MIN 1024 |
| #define SDI_RX_BUFFERS_MIN 2 /* This must be at least 2 */ |
| #define SDI_RX_BUFSIZE_MIN 8 /* This must be positive and divisible by 4 */ |
| |
| #define SDI_TX_BUFFERS 25 /* This must be at least 2 */ |
| #define SDI_TX_BUFSIZE 1235520 /* This must be positive and divisible by 4 */ |
| #define SDI_RX_BUFFERS 25 /* This must be at least 2 */ |
| #define SDI_RX_BUFSIZE 1235520 /* This must be positive and divisible by 4 */ |
| |
| /* Ioctl () definitions */ |
| #define SDI_IOC_MAGIC '=' /* This ioctl magic number is currently free. See |
| * /usr/src/linux/Documentation/ioctl-number.txt */ |
| |
| #define SDI_IOC_TXGETCAP _IOR(SDI_IOC_MAGIC, 1, unsigned int) |
| #define SDI_IOC_TXGETEVENTS _IOR(SDI_IOC_MAGIC, 2, unsigned int) |
| #define SDI_IOC_TXGETBUFLEVEL _IOR(SDI_IOC_MAGIC, 3, unsigned int) |
| #define SDI_IOC_TXGETTXD _IOR(SDI_IOC_MAGIC, 4, int) |
| |
| #define SDI_IOC_RXGETCAP _IOR(SDI_IOC_MAGIC, 65, unsigned int) |
| #define SDI_IOC_RXGETEVENTS _IOR(SDI_IOC_MAGIC, 66, unsigned int) |
| #define SDI_IOC_RXGETBUFLEVEL _IOR(SDI_IOC_MAGIC, 67, unsigned int) |
| #define SDI_IOC_RXGETCARRIER _IOR(SDI_IOC_MAGIC, 68, int) |
| #define SDI_IOC_RXGETSTATUS _IOR(SDI_IOC_MAGIC, 69, int) |
| |
| #define SDI_IOC_GETID _IOR(SDI_IOC_MAGIC, 129, unsigned int) |
| #define SDI_IOC_GETVERSION _IOR(SDI_IOC_MAGIC, 130, unsigned int) |
| #define SDI_IOC_QBUF_DEPRECATED _IOR(SDI_IOC_MAGIC, 131, unsigned int) |
| #define SDI_IOC_QBUF _IOW(SDI_IOC_MAGIC, 131, unsigned int) |
| #define SDI_IOC_DQBUF_DEPRECATED _IOR(SDI_IOC_MAGIC, 132, unsigned int) |
| #define SDI_IOC_DQBUF _IOW(SDI_IOC_MAGIC, 132, unsigned int) |
| |
| /* Transmitter event flag bit locations */ |
| #define SDI_EVENT_TX_BUFFER_ORDER 0 |
| #define SDI_EVENT_TX_BUFFER (1 << SDI_EVENT_TX_BUFFER_ORDER) |
| #define SDI_EVENT_TX_FIFO_ORDER 1 |
| #define SDI_EVENT_TX_FIFO (1 << SDI_EVENT_TX_FIFO_ORDER) |
| #define SDI_EVENT_TX_DATA_ORDER 2 |
| #define SDI_EVENT_TX_DATA (1 << SDI_EVENT_TX_DATA_ORDER) |
| |
| /* Receiver event flag bit locations */ |
| #define SDI_EVENT_RX_BUFFER_ORDER 0 |
| #define SDI_EVENT_RX_BUFFER (1 << SDI_EVENT_RX_BUFFER_ORDER) |
| #define SDI_EVENT_RX_FIFO_ORDER 1 |
| #define SDI_EVENT_RX_FIFO (1 << SDI_EVENT_RX_FIFO_ORDER) |
| #define SDI_EVENT_RX_CARRIER_ORDER 2 |
| #define SDI_EVENT_RX_CARRIER (1 << SDI_EVENT_RX_CARRIER_ORDER) |
| |
| /* Interface capabilities */ |
| #define SDI_CAP_TX_RXCLKSRC 0x00000001 |
| |
| /* Transmitter clock source settings */ |
| #define SDI_CTL_TX_CLKSRC_ONBOARD 0 |
| #define SDI_CTL_TX_CLKSRC_EXT 1 |
| #define SDI_CTL_TX_CLKSRC_RX 2 |
| |
| /* Mode settings */ |
| #define SDI_CTL_MODE_8BIT 0 |
| #define SDI_CTL_MODE_10BIT 1 |
| |
| #endif |
| |
