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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-09-25 16:15:54 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-09-25 16:15:54 +0000 |
| commit | aee118ec3bf99ba1af94bdf321c91d91553e9835 (patch) | |
| tree | 4bfa2abf7b13a7270e171cac5833c6d4ec092089 /os/io/platforms/AT91SAM7X/mac_lld.h | |
| parent | b32e78903d8f4b7195822c6f7e2b38052b443840 (diff) | |
| download | ChibiOS-aee118ec3bf99ba1af94bdf321c91d91553e9835.tar.gz ChibiOS-aee118ec3bf99ba1af94bdf321c91d91553e9835.tar.bz2 ChibiOS-aee118ec3bf99ba1af94bdf321c91d91553e9835.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1185 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/io/platforms/AT91SAM7X/mac_lld.h')
| -rw-r--r-- | os/io/platforms/AT91SAM7X/mac_lld.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/os/io/platforms/AT91SAM7X/mac_lld.h b/os/io/platforms/AT91SAM7X/mac_lld.h new file mode 100644 index 000000000..68bed475d --- /dev/null +++ b/os/io/platforms/AT91SAM7X/mac_lld.h @@ -0,0 +1,141 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file templates/mac_lld.h
+ * @brief MAC Driver subsystem low level driver header template
+ * @addtogroup MAC_LLD
+ * @{
+ */
+
+#ifndef _MAC_LLD_H_
+#define _MAC_LLD_H_
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Number of available descriptors/buffers. + */
+#if !defined(MAC_TRANSMIT_DESCRIPTORS) || defined(__DOXYGEN__)
+#define MAC_TRANSMIT_DESCRIPTORS 2
+#endif
+
+/*===========================================================================*/
+/* EMAC specific constants and settings. */
+/*===========================================================================*/
+
+#define EMAC_RECEIVE_BUFFERS 24
+#define EMAC_RECEIVE_BUFFERS_SIZE 128 /* Do not modify */
+#define EMAC_TRANSMIT_BUFFERS MAC_TRANSMIT_DESCRIPTORS
+#define EMAC_TRANSMIT_BUFFERS_SIZE 1518
+
+#define W1_R_OWNERSHIP 0x00000001
+#define W1_R_WRAP 0x00000002
+#define W1_R_ADDRESS_MASK 0xFFFFFFFC
+
+#define W2_R_LENGTH_MASK 0x00000FFF
+#define W2_R_FRAME_START 0x00004000
+#define W2_R_FRAME_END 0x00008000
+#define W2_R_CFI 0x00010000
+#define W2_R_VLAN_PRIO_MASK 0x000E0000
+#define W2_R_PRIO_TAG_DETECTED 0x00100000
+#define W2_R_VLAN_TAG_DETECTED 0x00200000
+#define W2_R_TYPE_ID_MATCH 0x00400000
+#define W2_R_ADDR4_MATCH 0x00800000
+#define W2_R_ADDR3_MATCH 0x01000000
+#define W2_R_ADDR2_MATCH 0x02000000
+#define W2_R_ADDR1_MATCH 0x04000000
+#define W2_R_RFU1 0x08000000
+#define W2_R_ADDR_EXT_MATCH 0x10000000
+#define W2_R_UNICAST_MATCH 0x20000000
+#define W2_R_MULTICAST_MATCH 0x40000000
+#define W2_R_BROADCAST_DETECTED 0x80000000
+
+#define W2_T_LENGTH_MASK 0x000007FF
+#define W2_T_LOCKED 0x00000800 /* Not an EMAC flag, used by the driver */
+#define W2_T_RFU1 0x00003000
+#define W2_T_LAST_BUFFER 0x00008000
+#define W2_T_NO_CRC 0x00010000
+#define W2_T_RFU2 0x07FE0000
+#define W2_T_BUFFERS_EXHAUSTED 0x08000000
+#define W2_T_TRANSMIT_UNDERRUN 0x10000000
+#define W2_T_RETRY_LIMIT_EXC 0x20000000
+#define W2_T_WRAP 0x40000000
+#define W2_T_USED 0x80000000
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Structure representing a MAC driver.
+ */
+typedef struct {
+ enum {ifStopped = 0,
+ ifStarted} md_state; /**< @brief Interface status.*/
+ Semaphore md_tdsem; /**< Transmit semaphore.*/
+ Semaphore md_rdsem; /**< Receive semaphore.*/
+} MACDriver;
+
+/**
+ * @brief Structure representing a transmission descriptor.
+ */
+typedef struct {
+
+ uint32_t w1;
+ uint32_t w2;
+} MACTransmitDescriptor;
+
+/**
+ * @brief Structure representing a receive descriptor.
+ */
+typedef struct {
+
+ uint32_t w1;
+ uint32_t w2;
+} MACReceiveDescriptor;
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void mac_lld_init(void);
+ void mac_lld_set_address(MACDriver *macp, uint8_t *p);
+ void mac_lld_start(MACDriver *macp);
+ void mac_lld_stop(MACDriver *macp);
+ MACTransmitDescriptor *max_lld_get_transmit_descriptor(MACDriver *macp);
+ void mac_lld_release_transmit_descriptor(MACDriver *macp,
+ MACTransmitDescriptor *tdp);
+ uint8_t *mac_lld_get_transmit_buffer(MACTransmitDescriptor *tdp);
+ MACReceiveDescriptor *max_lld_get_receive_descriptor(MACDriver *macp);
+ void mac_lld_release_receive_descriptor(MACDriver *macp,
+ MACReceiveDescriptor *rdp);
+ uint8_t *mac_lld_get_receive_buffer(MACReceiveDescriptor *rdp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _MAC_LLD_H_ */
+
+/** @} */
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