author | Martin Troxler <ch1010277@ch10lt194> |
Fri, 26 Nov 2010 10:33:55 +0100 | |
changeset 2002 | 26b4ba6edccb |
parent 1863 | 8ea4a79dfe84 |
child 2158 | 69f2b2702336 |
child 2589 | 2b9c78543663 |
permissions | -rw-r--r-- |
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/****************************************************************************** |
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* |
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* $Id$ |
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* |
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* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH |
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* |
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* This file is part of the IgH EtherCAT Master. |
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* |
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* The IgH EtherCAT Master is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License version 2, as |
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* published by the Free Software Foundation. |
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* |
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* The IgH EtherCAT Master is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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* Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with the IgH EtherCAT Master; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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* --- |
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* |
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* The license mentioned above concerns the source code only. Using the |
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* EtherCAT technology and brand is only permitted in compliance with the |
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* industrial property and similar rights of Beckhoff Automation GmbH. |
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* |
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*****************************************************************************/ |
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/** |
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\file |
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EtherCAT device structure. |
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*/ |
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|
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/*****************************************************************************/ |
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#ifndef __EC_DEVICE_H__ |
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#define __EC_DEVICE_H__ |
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#include <linux/interrupt.h> |
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#include "../devices/ecdev.h" |
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#include "globals.h" |
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/** |
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* Size of the transmit ring. |
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* This memory ring is used to transmit frames. It is necessary to use |
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* different memory regions, because otherwise the network device DMA could |
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* send the same data twice, if it is called twice. |
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*/ |
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#define EC_TX_RING_SIZE 2 |
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#ifdef EC_DEBUG_IF |
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#include "debug.h" |
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#endif |
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#ifdef EC_DEBUG_RING |
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#define EC_DEBUG_RING_SIZE 10 |
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|
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typedef enum { |
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TX, RX |
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} ec_debug_frame_dir_t; |
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|
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typedef struct { |
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ec_debug_frame_dir_t dir; |
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struct timeval t; |
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unsigned int addr; |
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uint8_t data[EC_MAX_DATA_SIZE]; |
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unsigned int data_size; |
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} ec_debug_frame_t; |
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#endif |
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/*****************************************************************************/ |
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/** |
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EtherCAT device. |
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An EtherCAT device is a network interface card, that is owned by an |
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EtherCAT master to send and receive EtherCAT frames with. |
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*/ |
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struct ec_device |
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{ |
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ec_master_t *master; /**< EtherCAT master */ |
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struct net_device *dev; /**< pointer to the assigned net_device */ |
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ec_pollfunc_t poll; /**< pointer to the device's poll function */ |
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struct module *module; /**< pointer to the device's owning module */ |
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uint8_t open; /**< true, if the net_device has been opened */ |
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uint8_t link_state; /**< device link state */ |
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struct sk_buff *tx_skb[EC_TX_RING_SIZE]; /**< transmit skb ring */ |
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unsigned int tx_ring_index; /**< last ring entry used to transmit */ |
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#ifdef EC_HAVE_CYCLES |
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cycles_t cycles_poll; /**< cycles of last poll */ |
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#endif |
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#ifdef EC_DEBUG_RING |
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struct timeval timeval_poll; |
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#endif |
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unsigned long jiffies_poll; /**< jiffies of last poll */ |
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// Frame statistics |
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u64 tx_count; /**< Number of frames sent. */ |
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u64 last_tx_count; /**< Number of frames sent of last statistics cycle. */ |
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u64 rx_count; /**< Number of frames received. */ |
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u64 tx_bytes; /**< Number of frames sent. */ |
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u64 last_tx_bytes; /**< Number of bytes sent of last statistics cycle. */ |
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u64 tx_errors; /**< Number of transmit errors. */ |
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u64 last_loss; /**< Tx/Rx difference of last statistics cycle. */ |
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unsigned int tx_frame_rates[EC_RATE_COUNT]; /**< Transmit rates in |
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frames/s for different |
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statistics cycle periods. */ |
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unsigned int tx_byte_rates[EC_RATE_COUNT]; /**< Transmit rates in byte/s |
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for different statistics |
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cycle periods. */ |
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int loss_rates[EC_RATE_COUNT]; /**< Frame loss rates for different |
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statistics cycle periods. */ |
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unsigned long stats_jiffies; /**< Jiffies of last statistic cycle. */ |
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#ifdef EC_DEBUG_IF |
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ec_debug_t dbg; /**< debug device */ |
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#endif |
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#ifdef EC_DEBUG_RING |
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ec_debug_frame_t debug_frames[EC_DEBUG_RING_SIZE]; |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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parents:
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diff
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123 |
unsigned int debug_frame_index; |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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parents:
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124 |
unsigned int debug_frame_count; |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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125 |
#endif |
54
7506e67dd122
Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
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126 |
}; |
0 | 127 |
|
39
6965c23a6826
likely/unlikely, Fehlermeldungen in zyklischem Code begrenzt und Kommentare ge??ndert.
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parents:
33
diff
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|
128 |
/*****************************************************************************/ |
0 | 129 |
|
579
17c6fd3b076e
Made master devices persistent; added ec_device_attach() and ec_device_detach().
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parents:
575
diff
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|
130 |
int ec_device_init(ec_device_t *, ec_master_t *); |
54
7506e67dd122
Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
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parents:
41
diff
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|
131 |
void ec_device_clear(ec_device_t *); |
78
3d74183d6c6b
Frame-Debugging ins Device ausgelagert und verbessert.
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parents:
73
diff
changeset
|
132 |
|
579
17c6fd3b076e
Made master devices persistent; added ec_device_attach() and ec_device_detach().
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parents:
575
diff
changeset
|
133 |
void ec_device_attach(ec_device_t *, struct net_device *, ec_pollfunc_t, |
17c6fd3b076e
Made master devices persistent; added ec_device_attach() and ec_device_detach().
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parents:
575
diff
changeset
|
134 |
struct module *); |
17c6fd3b076e
Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents:
575
diff
changeset
|
135 |
void ec_device_detach(ec_device_t *); |
17c6fd3b076e
Made master devices persistent; added ec_device_attach() and ec_device_detach().
Florian Pose <fp@igh-essen.com>
parents:
575
diff
changeset
|
136 |
|
54
7506e67dd122
Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
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parents:
41
diff
changeset
|
137 |
int ec_device_open(ec_device_t *); |
7506e67dd122
Vereinheitlichte Schnittstellen, Include-Verzeichnis und Module getrennt.
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parents:
41
diff
changeset
|
138 |
int ec_device_close(ec_device_t *); |
78
3d74183d6c6b
Frame-Debugging ins Device ausgelagert und verbessert.
Florian Pose <fp@igh-essen.com>
parents:
73
diff
changeset
|
139 |
|
533
acdd1f9ef7ab
Replaced ec_isr_t by ec_pollfunc_t; added poll function s in network drivers.
Florian Pose <fp@igh-essen.com>
parents:
493
diff
changeset
|
140 |
void ec_device_poll(ec_device_t *); |
98
f564d0929292
MERGE branches/async 222:233 -> trunk (Kommando-Warteschlangen).
Florian Pose <fp@igh-essen.com>
parents:
96
diff
changeset
|
141 |
uint8_t *ec_device_tx_data(ec_device_t *); |
78
3d74183d6c6b
Frame-Debugging ins Device ausgelagert und verbessert.
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parents:
73
diff
changeset
|
142 |
void ec_device_send(ec_device_t *, size_t); |
1856
10175d5f35ea
Fixed clearing frame statistics on link down.
Florian Pose <fp@igh-essen.com>
parents:
1854
diff
changeset
|
143 |
void ec_device_clear_stats(ec_device_t *); |
78
3d74183d6c6b
Frame-Debugging ins Device ausgelagert und verbessert.
Florian Pose <fp@igh-essen.com>
parents:
73
diff
changeset
|
144 |
|
692
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
Florian Pose <fp@igh-essen.com>
parents:
679
diff
changeset
|
145 |
#ifdef EC_DEBUG_RING |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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parents:
679
diff
changeset
|
146 |
void ec_device_debug_ring_append(ec_device_t *, ec_debug_frame_dir_t, |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
Florian Pose <fp@igh-essen.com>
parents:
679
diff
changeset
|
147 |
const void *, size_t); |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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parents:
679
diff
changeset
|
148 |
void ec_device_debug_ring_print(const ec_device_t *); |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
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parents:
679
diff
changeset
|
149 |
#endif |
fe7cf37c33f1
Implemented debug frame ring to output the last n frames for debugging
Florian Pose <fp@igh-essen.com>
parents:
679
diff
changeset
|
150 |
|
39
6965c23a6826
likely/unlikely, Fehlermeldungen in zyklischem Code begrenzt und Kommentare ge??ndert.
Florian Pose <fp@igh-essen.com>
parents:
33
diff
changeset
|
151 |
/*****************************************************************************/ |
0 | 152 |
|
153 |
#endif |