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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-11-03 15:19:05 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-11-03 15:19:05 +0000
commit1f14ff427ad609422b0b70e8bd20d6099470907c (patch)
treecb324d286e7756efcb1370be1c04041818584583
parent2000-11-02 Ralf Corsepius <corsepiu@faw.uni-ulm.de> (diff)
downloadrtems-1f14ff427ad609422b0b70e8bd20d6099470907c.tar.bz2
2000-11-03 Chris Johns <ccj@acm.org>
* network/README.cs8900, network/cs8900.c, network/cs8900.h: New files. * network/Makefile.am: Modified to reflect above.
-rw-r--r--c/src/libchip/ChangeLog4
-rw-r--r--c/src/libchip/network/Makefile.am8
-rw-r--r--c/src/libchip/network/README.cs890037
-rw-r--r--c/src/libchip/network/cs8900.c298
-rw-r--r--c/src/libchip/network/cs8900.h448
5 files changed, 792 insertions, 3 deletions
diff --git a/c/src/libchip/ChangeLog b/c/src/libchip/ChangeLog
index cfc7898fc2..a64d03a987 100644
--- a/c/src/libchip/ChangeLog
+++ b/c/src/libchip/ChangeLog
@@ -1,3 +1,7 @@
+2000-11-03 Chris Johns <ccj@acm.org>
+
+ * network/README.cs8900, network/cs8900.c, network/cs8900.h: New files.
+
2000-11-02 Ralf Corsepius <corsepiu@faw.uni-ulm.de>
* Makefile.am: Switch to ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal.
diff --git a/c/src/libchip/network/Makefile.am b/c/src/libchip/network/Makefile.am
index 43c85bf5fb..026fe446c7 100644
--- a/c/src/libchip/network/Makefile.am
+++ b/c/src/libchip/network/Makefile.am
@@ -7,10 +7,11 @@ AUTOMAKE_OPTIONS = foreign 1.4
LIBNAME = libnetchip
LIB = $(ARCH)/$(LIBNAME).a
+# add cs8900.c to work with it and make it compile
C_FILES = dec21140.c sonic.c
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
-H_FILES = sonic.h
+H_FILES = cs8900.h sonic.h
OBJS = $(C_O_FILES)
@@ -38,7 +39,7 @@ $(PROJECT_RELEASE)/lib/$(LIBNAME)$(LIB_VARIANT).a: $(LIB)
if HAS_NETWORKING
PREINSTALL_FILES += $(PROJECT_INCLUDE)/libchip \
- $(PROJECT_INCLUDE)/libchip/sonic.h
+ $(PROJECT_INCLUDE)/libchip/cs8900.h $(PROJECT_INCLUDE)/libchip/sonic.h
endif
TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/$(LIBNAME)$(LIB_VARIANT).a
@@ -49,6 +50,7 @@ endif
.PRECIOUS: $(LIB)
-EXTRA_DIST = README README.dec21140 README.sonic dec21140.c sonic.c sonic.h
+EXTRA_DIST = README README.cs8900 README.dec21140 README.sonic \
+ cs8900.c cs8900.h dec21140.c sonic.c sonic.h
include $(top_srcdir)/../../../automake/local.am
diff --git a/c/src/libchip/network/README.cs8900 b/c/src/libchip/network/README.cs8900
new file mode 100644
index 0000000000..8cd31d91e4
--- /dev/null
+++ b/c/src/libchip/network/README.cs8900
@@ -0,0 +1,37 @@
+#
+# $Id$
+#
+
+Conditionals
+============
+CS8900_DATA_BUS_SWAPPED - XXX
+
+CS8900_TRACE - XXX
+
+CS8900_VERBOSE - XXX
+
+Todo
+====
++ Build two versions -- one with swapped, one without.
+
++ Document conditionals.
+
++ Document each of the user supplied functions.
+
++ PC386 BSP wrapper for this.
+
+Configuration
+=============
+The BSP provides these routines:
+
+void cs8900_attach_interrupt (int dev, cs8900_device *cs);
+void cs8900_detach_interrupt (int dev);
+void cs8900_get_mac_addr (int dev, unsigned char *mac_address);
+void cs8900_io_set_reg (int dev, unsigned short reg, unsigned short data);
+unsigned short cs8900_io_get_reg (int dev, unsigned short reg);
+void cs8900_mem_set_reg (int dev, unsigned long reg, unsigned short data);
+unsigned short cs8900_mem_get_reg (int dev, unsigned long reg);
+void cs8900_put_data_block (int dev, int len, unsigned char *data);
+unsigned short cs8900_get_data_block (int dev, unsigned char *data);
+void cs8900_tx_load (int dev, struct mbuf *m);
+
diff --git a/c/src/libchip/network/cs8900.c b/c/src/libchip/network/cs8900.c
new file mode 100644
index 0000000000..15a394496f
--- /dev/null
+++ b/c/src/libchip/network/cs8900.c
@@ -0,0 +1,298 @@
+/*
+ ------------------------------------------------------------------------
+ $Id$
+ ------------------------------------------------------------------------
+
+ My Right Boot, a boot ROM for embedded hardware.
+
+ Copyright Cybertec Pty Ltd, 2000
+ All rights reserved Cybertec Pty Ltd, 2000
+
+ COPYRIGHT (c) 1989-1998.
+ On-Line Applications Research Corporation (OAR).
+ Copyright assigned to U.S. Government, 1994.
+
+ The license and distribution terms for this file may be
+ found in the file LICENSE in this distribution or at
+ http://www.OARcorp.com/rtems/license.html.
+
+ ------------------------------------------------------------------------
+
+ CS8900 net boot driver.
+
+ */
+
+#include <bspIo.h>
+#include <rtems.h>
+
+#include <libchip/cs8900.h>
+
+/*
+ * Our local data.
+ */
+
+#ifdef CS8900_VERBOSE
+static BOOLEAN cs8900_io_verbose;
+#endif
+
+static rtems_isr_void_entry old_handler[CS8900_DEVICES];
+static void *old_parameter[CS8900_DEVICES];
+
+/*
+ * Tables of IO addresses and interrupt levels for each device attached.
+ */
+
+static const unsigned long ethernet_io_base[CS8900_DEVICES] =
+{
+ ETHERNET_BASE
+};
+
+static const unsigned long ethernet_mem_base[CS8900_DEVICES] =
+{
+ ETHERNET_BASE + CS8900_MEMORY_BASE
+};
+
+static const unsigned int ethernet_irq_level[CS8900_DEVICES] =
+{
+ ETHERNET_IRQ_LEVEL
+};
+
+static const unsigned int ethernet_irq_priority[CS8900_DEVICES] =
+{
+ ETHERNET_IRQ_PRIORITY
+};
+
+static const unsigned int ethernet_irq_vector[CS8900_DEVICES] =
+{
+ ETHERNET_IRQ_VECTOR,
+};
+
+void cs8900_io_set_reg (int dev, unsigned short reg, unsigned short data)
+{
+#ifdef CS8900_DATA_BUS_SWAPPED
+ data = (data >> 8) | (data << 8);
+#endif
+
+#ifdef CS8900_VERBOSE
+ if (cs8900_io_verbose)
+ printf ("CS8900: io set reg=0x%04x, data=0x%04x\n", reg, data);
+#endif
+
+ WRITE_REGISTER_16 (ethernet_io_base[dev] + reg, data);
+}
+
+unsigned short cs8900_io_get_reg (int dev, unsigned short reg)
+{
+ unsigned long data;
+
+ READ_REGISTER_16 (ethernet_io_base[dev] + reg, data);
+
+#ifdef CS8900_DATA_BUS_SWAPPED
+ data = (data >> 8) | (data << 8);
+#endif
+
+#ifdef CS8900_VERBOSE
+ if (cs8900_io_verbose)
+ printk ("CS8900: io get reg=0x%04x, data=0x%04x\n", reg, data);
+#endif
+
+ return data;
+}
+
+void cs8900_mem_set_reg (int dev, unsigned long reg, unsigned short data)
+{
+#ifdef CS8900_DATA_BUS_SWAPPED
+ data = (data >> 8) | (data << 8);
+#endif
+
+#ifdef CS8900_VERBOSE
+ if (cs8900_io_verbose)
+ printk ("CS8900: mem set reg=0x%04x, data=0x%04x\n", reg, data);
+#endif
+
+ WRITE_REGISTER_16 (ethernet_io_base[dev] + reg, data);
+}
+
+unsigned short cs8900_mem_get_reg (int dev, unsigned long reg)
+{
+ unsigned short data;
+ READ_REGISTER_16 (ethernet_io_base[dev] + reg, data);
+
+#ifdef CS8900_DATA_BUS_SWAPPED
+ data = (data >> 8) | (data << 8);
+#endif
+
+#ifdef CS8900_VERBOSE
+ if (cs8900_io_verbose)
+ printk ("CS8900: mem get reg=0x%04x, data=0x%04x\n", reg, data);
+#endif
+
+ return data;
+}
+
+void cs8900_put_data_block (int dev, int len, unsigned char *data)
+{
+#ifndef CS8900_DATA_BUS_SWAPPED
+ unsigned short swap_word;
+#endif
+ unsigned short *src = (unsigned short *) ((unsigned long) data);
+ unsigned short *dst = (unsigned short *) (ethernet_mem_base[dev] + CS8900_PP_TxFrameLoc);
+
+ while (len > 1)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ swap_word = *src++;
+ *dst++ = (swap_word >> 8) | (swap_word << 8);
+#else
+ *dst++ = *src++;
+#endif
+ len -= 2;
+ }
+
+ if (len)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ swap_word = *src++;
+ *dst++ = (swap_word >> 8) | (swap_word << 8);
+#else
+ *dst++ = *src++;
+#endif
+ }
+}
+
+unsigned short cs8900_get_data_block (int dev, unsigned char *data)
+{
+ unsigned short swap_word;
+ volatile unsigned short *src = (unsigned short *) (ethernet_mem_base[dev] + CS8900_PP_RxLength);
+ unsigned short *dst;
+ unsigned short len;
+ unsigned short rx_len;
+ unsigned short len_odd;
+
+#ifdef CS8900_DATA_BUS_SWAPPED
+ swap_word = *src++;
+ len = (swap_word >> 8) | (swap_word << 8);
+#else
+ len = *src++;
+#endif
+
+ dst = (unsigned short *) ((unsigned long) data);
+
+ len_odd = len & 1;
+ rx_len = len & ~1;
+
+ for (; rx_len; rx_len -= 2)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ swap_word = *src++;
+ *dst++ = (swap_word >> 8) | (swap_word << 8);
+#else
+ *dst++ = *src++;
+#endif
+ }
+
+ if (len_odd)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ swap_word = *src++;
+ *dst++ = (swap_word >> 8) | (swap_word << 8);
+#else
+ *dst++ = *src++;
+#endif
+ }
+
+ return len;
+}
+
+void
+cs8900_tx_load (int dev, struct mbuf *m)
+{
+ volatile unsigned short *dst = (unsigned short *) (ethernet_mem_base[dev] + CS8900_PP_TxFrameLoc);
+ unsigned int len;
+ unsigned char *src;
+ int remainder = 0;
+ unsigned char remainder_data = '\0';
+
+ while (m)
+ {
+ /*
+ * We can get empty mbufs from the stack.
+ */
+
+ len = m->m_len;
+ src = mtod (m, unsigned char*);
+
+ if (len)
+ {
+ if (remainder)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ *dst++ = remainder_data | (*src++ << 8);
+#else
+ *dst++ = *src++ | (remainder_data << 8);
+#endif
+ len--;
+ remainder = 0;
+ }
+
+ if (len & 1)
+ {
+ remainder = 1;
+ len--;
+ }
+
+ for (; len; len -= 2)
+#ifndef CS8900_DATA_BUS_SWAPPED
+ *dst++ = (*src++) | (*(++src) << 8);
+#else
+ *dst++ = (*src++ << 8) | *(++src);
+#endif
+
+ if (remainder)
+ remainder_data = *src++;
+ }
+
+ m = m->m_next;
+ }
+
+ if (remainder)
+ {
+#ifndef CS8900_DATA_BUS_SWAPPED
+ *dst = (unsigned short) remainder_data;
+#else
+ *dst = (unsigned short) (remainder_data << 8);
+#endif
+ }
+}
+
+void cs8900_attach_interrupt (int dev, cs8900_device *cs)
+{
+ rtems_interrupt_catch_with_void (cs8900_interrupt,
+ ethernet_irq_vector[dev],
+ &old_handler[dev],
+ cs,
+ &old_parameter[dev]);
+
+ CF_SIM_WRITE_ICR (CF_BASE,
+ ethernet_irq_level[dev],
+ CF_SIM_ICR_AVEC_AUTO,
+ ethernet_irq_level[dev],
+ ethernet_irq_priority[dev]);
+ CF_SIM_IMR_ENABLE (CF_BASE, 1 << ethernet_irq_level[dev]);
+}
+
+void cs8900_detach_interrupt (int dev)
+{
+ CF_SIM_IMR_DISABLE (CF_BASE, 1 << ethernet_irq_level[dev]);
+
+ rtems_interrupt_catch_with_void (old_handler,
+ ethernet_irq_vector[dev],
+ NULL,
+ old_parameter[dev],
+ NULL);
+}
+
+void cs8900_get_mac_addr (int dev, unsigned char *mac_address)
+{
+ memcpy (mac_address, rct_get_mac_address (dev), 6);
+}
diff --git a/c/src/libchip/network/cs8900.h b/c/src/libchip/network/cs8900.h
new file mode 100644
index 0000000000..0030867aee
--- /dev/null
+++ b/c/src/libchip/network/cs8900.h
@@ -0,0 +1,448 @@
+/*
+ ------------------------------------------------------------------------
+ $Id$
+ ------------------------------------------------------------------------
+
+ My Right Boot, a boot ROM for embedded hardware.
+
+ Copyright Cybertec Pty Ltd, 2000
+ All rights reserved Cybertec Pty Ltd, 2000
+
+ COPYRIGHT (c) 1989-1998.
+ On-Line Applications Research Corporation (OAR).
+ Copyright assigned to U.S. Government, 1994.
+
+ The license and distribution terms for this file may be
+ found in the file LICENSE in this distribution or at
+ http://www.OARcorp.com/rtems/license.html.
+
+ ------------------------------------------------------------------------
+
+ CS8900 net boot driver.
+
+ */
+
+#if !defined(_CS8900_H_)
+#define _CS8900_H_
+
+#include <rtems.h>
+#include <rtems/error.h>
+#include <rtems/rtems_bsdnet.h>
+
+#include <sys/param.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+
+#define ET_MINLEN 60
+
+/*
+ * CS8900 device register definitions
+ */
+
+/*
+ * Crystal ESIA product id.
+ */
+
+#define CS8900_ESIA_ID (0x630e)
+
+/*
+ * IO Registers.
+ */
+
+#define CS8900_IO_RX_TX_DATA_PORT0 (0x0000)
+#define CS8900_IO_TX_TX_DATA_PORT1 (0x0002)
+#define CS8900_IO_TxCMD (0x0004)
+#define CS8900_IO_TxLength (0x0006)
+#define CS8900_IO_ISQ (0x0008)
+#define CS8900_IO_PACKET_PAGE_PTR (0x000a)
+#define CS8900_IO_PP_DATA_PORT0 (0x000c)
+#define CS8900_IO_PP_DATA_PORT1 (0x000e)
+
+/*
+ * Packet Page Registers.
+ */
+
+/*
+ * Bus Interface Registers.
+ */
+
+#define CS8900_PP_PROD_ID (0x0000)
+#define CS8900_PP_IO_BASE (0x0020)
+#define CS8900_PP_INT (0x0022)
+#define CS8900_PP_DMA_CHANNEL (0x0024)
+#define CS8900_PP_DMA_SOF (0x0026)
+#define CS8900_PP_DMA_FRM_CNT (0x0028)
+#define CS8900_PP_DMA_RX_BCNT (0x002a)
+#define CS8900_PP_MEM_BASE (0x002c)
+#define CS8900_PP_BPROM_BASE (0x0030)
+#define CS8900_PP_BPROM_AMASK (0x0034)
+#define CS8900_PP_EEPROM_CMD (0x0040)
+#define CS8900_PP_EEPROM_DATA (0x0042)
+#define CS8900_PP_RX_FRAME_BCNT (0x0050)
+
+/*
+ * Configuration and Control Registers.
+ */
+
+#define CS8900_PP_RxCFG (0x0102)
+#define CS8900_PP_RxCTL (0x0104)
+#define CS8900_PP_TxCFG (0x0106)
+#define CS8900_PP_TxCMD_READ (0x0108)
+#define CS8900_PP_BufCFG (0x010a)
+#define CS8900_PP_LineCFG (0x0112)
+#define CS8900_PP_SelfCTL (0x0114)
+#define CS8900_PP_BusCTL (0x0116)
+#define CS8900_PP_TestCTL (0x0118)
+
+/*
+ * Status and Event Registers.
+ */
+
+#define CS8900_PP_ISQ (0x0120)
+#define CS8900_PP_RxEvent (0x0124)
+#define CS8900_PP_TxEvent (0x0128)
+#define CS8900_PP_BufEvent (0x012c)
+#define CS8900_PP_RxMISS (0x0130)
+#define CS8900_PP_TxCol (0x0132)
+#define CS8900_PP_LineST (0x0134)
+#define CS8900_PP_SelfST (0x0136)
+#define CS8900_PP_BusST (0x0138)
+#define CS8900_PP_TDR (0x013c)
+
+/*
+ * Initiate Transmit Registers.
+ */
+
+#define CS8900_PP_TxCMD (0x0144)
+#define CS8900_PP_TxLength (0x0146)
+
+/*
+ * Address Filter Registers.
+ */
+
+#define CS8900_PP_LAF (0x0150)
+#define CS8900_PP_IA (0x0158)
+
+/*
+ * Frame Location.
+ */
+
+#define CS8900_PP_RxStatus (0x0400)
+#define CS8900_PP_RxLength (0x0402)
+#define CS8900_PP_RxFrameLoc (0x0404)
+#define CS8900_PP_TxFrameLoc (0x0a00)
+
+/*
+ * Bit Definitions of Registers.
+ */
+
+/*
+ * IO Packet Page Pointer.
+ */
+
+#define CS8900_PPP_AUTO_INCREMENT (0x8000)
+
+/*
+ * Reg 3. Receiver Configuration.
+ */
+
+#define CS8900_RX_CONFIG_SKIP_1 (1 << 6)
+#define CS8900_RX_CONFIG_STREAM_ENABLE (1 << 7)
+#define CS8900_RX_CONFIG_RX_OK (1 << 8)
+#define CS8900_RX_CONFIG_RX_DMA (1 << 9)
+#define CS8900_RX_CONFIG_RX_AUTO_DMA (1 << 10)
+#define CS8900_RX_CONFIG_BUFFER_CRC (1 << 11)
+#define CS8900_RX_CONFIG_CRC_ERROR (1 << 12)
+#define CS8900_RX_CONFIG_RUNT (1 << 13)
+#define CS8900_RX_CONFIG_EXTRA_DATA (1 << 14)
+
+/*
+ * Reg 4. Receiver Event.
+ */
+
+#define CS8900_RX_EVENT_HASH_IA_MATCH (1 << 6)
+#define CS8900_RX_EVENT_DRIBBLE_BITS (1 << 7)
+#define CS8900_RX_EVENT_RX_OK (1 << 8)
+#define CS8900_RX_EVENT_HASHED (1 << 9)
+#define CS8900_RX_EVENT_IA (1 << 10)
+#define CS8900_RX_EVENT_BROADCAST (1 << 11)
+#define CS8900_RX_EVENT_CRC_ERROR (1 << 12)
+#define CS8900_RX_EVENT_RUNT (1 << 13)
+#define CS8900_RX_EVENT_EXTRA_DATA (1 << 14)
+
+/*
+ * Reg 5. Receiver Control.
+ */
+
+#define CS8900_RX_CTRL_HASH_IA_MATCH (1 << 6)
+#define CS8900_RX_CTRL_PROMISCUOUS (1 << 7)
+#define CS8900_RX_CTRL_RX_OK (1 << 8)
+#define CS8900_RX_CTRL_MULTICAST (1 << 9)
+#define CS8900_RX_CTRL_INDIVIDUAL (1 << 10)
+#define CS8900_RX_CTRL_BROADCAST (1 << 11)
+#define CS8900_RX_CTRL_CRC_ERROR (1 << 12)
+#define CS8900_RX_CTRL_RUNT (1 << 13)
+#define CS8900_RX_CTRL_EXTRA_DATA (1 << 14)
+
+/*
+ * Reg 7. Transmit Configuration.
+ */
+
+#define CS8900_TX_CONFIG_LOSS_OF_CARRIER (1 << 6)
+#define CS8900_TX_CONFIG_SQ_ERROR (1 << 7)
+#define CS8900_TX_CONFIG_TX_OK (1 << 8)
+#define CS8900_TX_CONFIG_OUT_OF_WINDOW (1 << 9)
+#define CS8900_TX_CONFIG_JABBER (1 << 10)
+#define CS8900_TX_CONFIG_ANY_COLLISION (1 << 11)
+#define CS8900_TX_CONFIG_16_COLLISION (1 << 15)
+
+/*
+ * Reg 8. Transmit Event.
+ */
+
+#define CS8900_TX_EVENT_LOSS_OF_CARRIER (1 << 6)
+#define CS8900_TX_EVENT_SQ_ERROR (1 << 7)
+#define CS8900_TX_EVENT_TX_OK (1 << 8)
+#define CS8900_TX_EVENT_OUT_OF_WINDOW (1 << 9)
+#define CS8900_TX_EVENT_JABBER (1 << 10)
+#define CS8900_TX_EVENT_16_COLLISIONS (1 << 15)
+
+/*
+ * Reg 9. Transmit Command Status.
+ */
+
+#define CS8900_TX_CMD_STATUS_TX_START_5 (0 << 6)
+#define CS8900_TX_CMD_STATUS_TX_START_381 (1 << 6)
+#define CS8900_TX_CMD_STATUS_TX_START_1021 (2 << 6)
+#define CS8900_TX_CMD_STATUS_TX_START_ENTIRE (3 << 6)
+#define CS8900_TX_CMD_STATUS_FORCE (1 << 8)
+#define CS8900_TX_CMD_STATUS_ONE_COLLISION (1 << 9)
+#define CS8900_TX_CMD_STATUS_INHIBIT_CRC (1 << 12)
+#define CS8900_TX_CMD_STATUS_TX_PAD_DISABLED (1 << 13)
+
+/*
+ * Reg B. Buffer Configuration.
+ */
+
+#define CS8900_BUFFER_CONFIG_SW_INT (1 << 6)
+#define CS8900_BUFFER_CONFIG_RX_DMA_DONE (1 << 7)
+#define CS8900_BUFFER_CONFIG_RDY_FOR_TX (1 << 8)
+#define CS8900_BUFFER_CONFIG_TX_UNDERRUN (1 << 9)
+#define CS8900_BUFFER_CONFIG_RX_MISSED (1 << 10)
+#define CS8900_BUFFER_CONFIG_RX_128_BYTES (1 << 11)
+#define CS8900_BUFFER_CONFIG_TX_COL_OVF (1 << 12)
+#define CS8900_BUFFER_CONFIG_RX_MISSED_OVF (1 << 13)
+#define CS8900_BUFFER_CONFIG_RX_DEST_MATCH (1 << 15)
+
+/*
+ * Reg C. Buffer Event.
+ */
+
+#define CS8900_BUFFER_EVENT_SW_INT (1 << 6)
+#define CS8900_BUFFER_EVENT_RX_DMA_DONE (1 << 7)
+#define CS8900_BUFFER_EVENT_RDY_FOR_TX (1 << 8)
+#define CS8900_BUFFER_EVENT_TX_UNDERRUN (1 << 9)
+#define CS8900_BUFFER_EVENT_RX_MISSED (1 << 10)
+#define CS8900_BUFFER_EVENT_RX_128_BYTES (1 << 11)
+#define CS8900_BUFFER_EVENT_RX_DEST_MATCH (1 << 15)
+
+/*
+ * Reg 13. Line Control.
+ */
+
+#define CS8900_LINE_CTRL_RX_ON (1 << 6)
+#define CS8900_LINE_CTRL_TX_ON (1 << 7)
+#define CS8900_LINE_CTRL_AUI (1 << 8)
+#define CS8900_LINE_CTRL_10BASET (0 << 9)
+#define CS8900_LINE_CTRL_AUTO_AUI_10BASET (1 << 9)
+#define CS8900_LINE_CTRL_MOD_BACKOFF (1 << 11)
+#define CS8900_LINE_CTRL_POLARITY_DISABLED (1 << 12)
+#define CS8900_LINE_CTRL_2_PART_DEF_DISABLED (1 << 13)
+#define CS8900_LINE_CTRL_LO_RX_SQUELCH (1 << 14)
+
+/*
+ * Reg 14. Line Status.
+ */
+
+#define CS8900_LINE_STATUS_LINK_OK (1 << 7)
+#define CS8900_LINE_STATUS_AUI (1 << 8)
+#define CS8900_LINE_STATUS_10_BASE_T (1 << 9)
+#define CS8900_LINE_STATUS_POLARITY_OK (1 << 12)
+#define CS8900_LINE_STATUS_CRS (1 << 14)
+
+/*
+ * Reg 15. Self Control.
+ */
+
+#define CS8900_SELF_CTRL_RESET (1 << 6)
+#define CS8900_SELF_CTRL_SW_SUSPEND (1 << 8)
+#define CS8900_SELF_CTRL_HW_SLEEP (1 << 9)
+#define CS8900_SELF_CTRL_HW_STANDBY (1 << 10)
+#define CS8900_SELF_CTRL_HC0E (1 << 12)
+#define CS8900_SELF_CTRL_HC1E (1 << 13)
+#define CS8900_SELF_CTRL_HCB0 (1 << 14)
+#define CS8900_SELF_CTRL_HCB1 (1 << 15)
+
+/*
+ * Reg 16. Self Status.
+ */
+
+#define CS8900_SELF_STATUS_3_3_V (1 << 6)
+#define CS8900_SELF_STATUS_INITD (1 << 7)
+#define CS8900_SELF_STATUS_SIBUST (1 << 8)
+#define CS8900_SELF_STATUS_EEPROM_PRESENT (1 << 9)
+#define CS8900_SELF_STATUS_EEPROM_OK (1 << 10)
+#define CS8900_SELF_STATUS_EL_PRESENT (1 << 11)
+#define CS8900_SELF_STATUS_EE_SIZE (1 << 12)
+
+/*
+ * Reg 17. Bus Control.
+ */
+
+#define CS8900_BUS_CTRL_RESET_RX_DMA (1 << 6)
+#define CS8900_BUS_CTRL_USE_SA (1 << 9)
+#define CS8900_BUS_CTRL_MEMORY_ENABLE (1 << 10)
+#define CS8900_BUS_CTRL_DMA_BURST (1 << 11)
+#define CS8900_BUS_CTRL_IOCHRDYE (1 << 12)
+#define CS8900_BUS_CTRL_RX_DMA_SIZE (1 << 13)
+#define CS8900_BUS_CTRL_ENABLE_INT (1 << 15)
+
+/*
+ * Reg 18. Bus Status.
+ */
+
+#define CS8900_BUS_STATUS_TX_BID_ERROR (1 << 7)
+#define CS8900_BUS_STATUS_RDY_FOR_TX_NOW (1 << 8)
+
+/*
+ * Trace for debugging the isq processing. Define to 1 to enable.
+ */
+#define CS8900_TRACE 0
+#define CS8900_TRACE_SIZE (400)
+
+/*
+ * Stats, more for debugging than anything else.
+ */
+
+typedef struct
+{
+ unsigned long rx_packets; /* total packets received */
+ unsigned long tx_packets; /* total packets transmitted */
+ unsigned long rx_bytes; /* total bytes received */
+ unsigned long tx_bytes; /* total bytes transmitted */
+ unsigned long rx_interrupts; /* total number of rx interrupts */
+ unsigned long tx_interrupts; /* total number of tx interrupts */
+
+ /* detailed rx errors: */
+ unsigned long rx_dropped; /* no mbufs in queue */
+ unsigned long rx_no_mbufs; /* no mbufs */
+ unsigned long rx_no_clusters; /* no clusters */
+ unsigned long rx_oversize_errors;
+ unsigned long rx_crc_errors; /* recved pkt with crc error */
+ unsigned long rx_runt_errors;
+ unsigned long rx_missed_errors; /* receiver missed packet */
+
+ /* detailed tx errors */
+ unsigned long tx_ok;
+ unsigned long tx_collisions;
+ unsigned long tx_bid_errors;
+ unsigned long tx_wait_for_rdy4tx;
+ unsigned long tx_rdy4tx;
+ unsigned long tx_underrun_errors;
+ unsigned long tx_dropped;
+ unsigned long tx_resends;
+
+ /* interrupt watch dog */
+ unsigned long int_swint_req;
+ unsigned long int_swint_res;
+ unsigned long int_lockup;
+
+ unsigned long interrupts;
+
+} eth_statistics;
+
+/*
+ * CS8900 device structure
+ */
+
+typedef struct
+{
+ /*
+ * Device number.
+ */
+
+ int dev;
+
+ /*
+ * The bsdnet information structure.
+ */
+
+ struct arpcom arpcom;
+
+ /*
+ * Driver state and resources.
+ */
+
+ int accept_bcast;
+ int tx_active;
+
+ rtems_id rx_task;
+ rtems_id tx_task;
+
+ /*
+ * The queues. FIXME : these should be changed to be mbuf lists.
+ */
+ struct mbuf *rx_ready_head;
+ struct mbuf *rx_ready_tail;
+ int rx_ready_len;
+
+ struct mbuf *rx_loaded_head;
+ struct mbuf *rx_loaded_tail;
+ int rx_loaded_len;
+
+#if CS8900_TRACE
+ unsigned short trace_key[CS8900_TRACE_SIZE];
+ unsigned long trace_var[CS8900_TRACE_SIZE];
+ unsigned long trace_time[CS8900_TRACE_SIZE];
+ int trace_in;
+#endif
+
+ /*
+ * Standard(!) ethernet statistics
+ */
+
+ eth_statistics eth_stats;
+
+} cs8900_device;
+
+/*
+ * Link is active, and RX count.
+ */
+
+int cs8900_link_active (int dev);
+int cs8900_driver_attach (struct rtems_bsdnet_ifconfig *config,
+ int attaching);
+rtems_isr cs8900_interrupt (rtems_vector_number v, void *cs);
+
+/*
+ * Functions Users Provide to implement the driver.
+ */
+
+void cs8900_attach_interrupt (int dev, cs8900_device *cs);
+void cs8900_detach_interrupt (int dev);
+void cs8900_get_mac_addr (int dev, unsigned char *mac_address);
+void cs8900_io_set_reg (int dev, unsigned short reg, unsigned short data);
+unsigned short cs8900_io_get_reg (int dev, unsigned short reg);
+void cs8900_mem_set_reg (int dev, unsigned long reg, unsigned short data);
+unsigned short cs8900_mem_get_reg (int dev, unsigned long reg);
+void cs8900_put_data_block (int dev, int len, unsigned char *data);
+unsigned short cs8900_get_data_block (int dev, unsigned char *data);
+void cs8900_tx_load (int dev, struct mbuf *m);
+
+#endif