| Sjur Braendeland | 2721c5b | 2010-03-30 13:56:22 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) ST-Ericsson AB 2010 |
| 3 | * Author: Sjur Brendeland/ sjur.brandeland@stericsson.com |
| 4 | * License terms: GNU General Public License (GPL) version 2 |
| 5 | */ |
| 6 | |
| 7 | #ifndef CAIF_DEVICE_H_ |
| 8 | #define CAIF_DEVICE_H_ |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/net.h> |
| 11 | #include <linux/netdevice.h> |
| 12 | #include <linux/caif/caif_socket.h> |
| 13 | #include <net/caif/caif_device.h> |
| 14 | |
| 15 | /** |
| 16 | * struct caif_dev_common - data shared between CAIF drivers and stack. |
| 17 | * @flowctrl: Flow Control callback function. This function is |
| 18 | * supplied by CAIF Core Stack and is used by CAIF |
| 19 | * Link Layer to send flow-stop to CAIF Core. |
| 20 | * The flow information will be distributed to all |
| 21 | * clients of CAIF. |
| 22 | * |
| 23 | * @link_select: Profile of device, either high-bandwidth or |
| 24 | * low-latency. This member is set by CAIF Link |
| 25 | * Layer Device in order to indicate if this device |
| 26 | * is a high bandwidth or low latency device. |
| 27 | * |
| 28 | * @use_frag: CAIF Frames may be fragmented. |
| 29 | * Is set by CAIF Link Layer in order to indicate if the |
| 30 | * interface receives fragmented frames that must be |
| 31 | * assembled by CAIF Core Layer. |
| 32 | * |
| 33 | * @use_fcs: Indicate if Frame CheckSum (fcs) is used. |
| 34 | * Is set if the physical interface is |
| 35 | * using Frame Checksum on the CAIF Frames. |
| 36 | * |
| 37 | * @use_stx: Indicate STart of frame eXtension (stx) in use. |
| 38 | * Is set if the CAIF Link Layer expects |
| 39 | * CAIF Frames to start with the STX byte. |
| 40 | * |
| 41 | * This structure is shared between the CAIF drivers and the CAIF stack. |
| 42 | * It is used by the device to register its behavior. |
| 43 | * CAIF Core layer must set the member flowctrl in order to supply |
| 44 | * CAIF Link Layer with the flow control function. |
| 45 | * |
| 46 | */ |
| 47 | struct caif_dev_common { |
| 48 | void (*flowctrl)(struct net_device *net, int on); |
| 49 | enum caif_link_selector link_select; |
| 50 | int use_frag; |
| 51 | int use_fcs; |
| 52 | int use_stx; |
| 53 | }; |
| 54 | |
| 55 | #endif /* CAIF_DEVICE_H_ */ |