2009-04-30 02:39:41 +02:00
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/****************************************************************************
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* drivers/net/cs89x0.c
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*
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* Copyright (C) 2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#if defined(CONFIG_NET) && defined(CONFIG_NET_CS89x0)
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2009-12-15 15:25:14 +01:00
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#include <stdint.h>
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#include <stdbool.h>
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2009-04-30 02:39:41 +02:00
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#include <time.h>
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#include <string.h>
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#include <debug.h>
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#include <wdog.h>
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#include <errno.h>
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#include <nuttx/irq.h>
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#include <nuttx/arch.h>
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#include <net/uip/uip.h>
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#include <net/uip/uip-arp.h>
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#include <net/uip/uip-arch.h>
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/****************************************************************************
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* Definitions
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****************************************************************************/
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2009-05-02 01:42:40 +02:00
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#error "Under construction -- do not use"
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2009-04-30 02:39:41 +02:00
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/* CONFIG_CS89x0_NINTERFACES determines the number of physical interfaces
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* that will be supported.
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*/
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#ifndef CONFIG_CS89x0_NINTERFACES
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# define CONFIG_CS89x0_NINTERFACES 1
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#endif
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2009-05-01 00:46:48 +02:00
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/* TX poll delay = 1 seconds. CLK_TCK is the number of clock ticks per second */
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2009-04-30 02:39:41 +02:00
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#define CS89x0_WDDELAY (1*CLK_TCK)
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#define CS89x0_POLLHSEC (1*2)
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/* TX timeout = 1 minute */
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#define CS89x0_TXTIMEOUT (60*CLK_TCK)
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/* This is a helper pointer for accessing the contents of the Ethernet header */
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2009-05-01 00:46:48 +02:00
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#define BUF ((struct uip_eth_hdr *)cs89x0->cs_dev.d_buf)
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2009-04-30 02:39:41 +02:00
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2009-05-01 00:46:48 +02:00
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/* If there is only one CS89x0 instance, then mapping the CS89x0 IRQ to
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* a driver state instance is trivial.
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2009-04-30 02:39:41 +02:00
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*/
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2009-05-01 00:46:48 +02:00
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#if CONFIG_CS89x0_NINTERFACES == 1
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# define cs89x0_mapirq(irq) g_cs89x0[0]
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#endif
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2009-04-30 02:39:41 +02:00
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2009-05-01 00:46:48 +02:00
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/****************************************************************************
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* Private Types
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****************************************************************************/
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2009-04-30 02:39:41 +02:00
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/****************************************************************************
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* Private Data
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****************************************************************************/
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2009-05-01 00:46:48 +02:00
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static FAR struct cs89x0_driver_s *g_cs89x0[CONFIG_CS89x0_NINTERFACES];
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2009-04-30 02:39:41 +02:00
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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2009-05-01 00:46:48 +02:00
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/* CS89x0 register access */
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2009-12-15 15:25:14 +01:00
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static uint16_t cs89x0_getreg(struct cs89x0_driver_s *cs89x0, int offset);
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2009-05-01 00:46:48 +02:00
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static void cs89x0_putreg(struct cs89x0_driver_s *cs89x0, int offset,
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2009-12-15 15:25:14 +01:00
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uint16_t value);
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static uint16_t cs89x0_getppreg(struct cs89x0_driver_s *cs89x0, int addr);
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2009-05-01 00:46:48 +02:00
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static void cs89x0_putppreg(struct cs89x0_driver_s *cs89x0, int addr,
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2009-12-15 15:25:14 +01:00
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uint16_t value);
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2009-05-01 00:46:48 +02:00
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2009-04-30 02:39:41 +02:00
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/* Common TX logic */
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static int cs89x0_transmit(struct cs89x0_driver_s *cs89x0);
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static int cs89x0_uiptxpoll(struct uip_driver_s *dev);
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/* Interrupt handling */
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static void cs89x0_receive(struct cs89x0_driver_s *cs89x0);
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2009-12-15 15:25:14 +01:00
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static void cs89x0_txdone(struct cs89x0_driver_s *cs89x0, uint16_t isq);
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2009-05-01 00:46:48 +02:00
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#if CONFIG_CS89x0_NINTERFACES > 1
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static inline FAR struct cs89x0_driver_s *cs89x0_mapirq(int irq);
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#endif
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2009-04-30 02:39:41 +02:00
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static int cs89x0_interrupt(int irq, FAR void *context);
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/* Watchdog timer expirations */
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2009-12-15 15:25:14 +01:00
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static void cs89x0_polltimer(int argc, uint32_t arg, ...);
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static void cs89x0_txtimeout(int argc, uint32_t arg, ...);
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2009-04-30 02:39:41 +02:00
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/* NuttX callback functions */
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static int cs89x0_ifup(struct uip_driver_s *dev);
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static int cs89x0_ifdown(struct uip_driver_s *dev);
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static int cs89x0_txavail(struct uip_driver_s *dev);
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2010-07-11 17:17:11 +02:00
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#ifdef CONFIG_NET_IGMP
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static int cs89x0_addmac(struct uip_driver_s *dev, FAR const uint8_t *mac);
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static int cs89x0_rmmac(struct uip_driver_s *dev, FAR const uint8_t *mac);
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#endif
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2009-04-30 02:39:41 +02:00
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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2009-05-01 00:46:48 +02:00
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/****************************************************************************
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* Function: cs89x0_getreg and cs89x0_putreg
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*
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* Description:
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* Read from and write to a CS89x0 register
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*
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* Parameters:
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* cs89x0 - Reference to the driver state structure
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* offset - Offset to the CS89x0 register
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* value - Value to be written (cs89x0_putreg only)
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*
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* Returned Value:
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* cs89x0_getreg: The 16-bit value of the register
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* cs89x0_putreg: None
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*
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****************************************************************************/
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2009-12-15 15:25:14 +01:00
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static uint16_t cs89x0_getreg(struct cs89x0_driver_s *cs89x0, int offset)
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2009-05-01 00:46:48 +02:00
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{
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#ifdef CONFIG_CS89x0_ALIGN16
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return getreg16(s89x0->cs_base + offset);
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#else
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2009-12-15 15:25:14 +01:00
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return (uint16_t)getreg32(s89x0->cs_base + offset);
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2009-05-01 00:46:48 +02:00
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#endif
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}
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2009-12-15 15:25:14 +01:00
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static void cs89x0_putreg(struct cs89x0_driver_s *cs89x0, int offset, uint16_t value)
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2009-05-01 00:46:48 +02:00
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{
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#ifdef CONFIG_CS89x0_ALIGN16
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return putreg16(value, s89x0->cs_base + offset);
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#else
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2009-12-15 15:25:14 +01:00
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return (uint16_t)putreg32((uint32_t)value, s89x0->cs_base + offset);
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2009-05-01 00:46:48 +02:00
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#endif
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}
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/****************************************************************************
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* Function: cs89x0_getppreg and cs89x0_putppreg
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*
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* Description:
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* Read from and write to a CS89x0 page packet register
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*
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* Parameters:
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* cs89x0 - Reference to the driver state structure
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* addr - Address of the CS89x0 page packet register
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* value - Value to be written (cs89x0_putppreg only)
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*
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* Returned Value:
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* cs89x0_getppreg: The 16-bit value of the page packet register
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* cs89x0_putppreg: None
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*
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****************************************************************************/
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2009-12-15 15:25:14 +01:00
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static uint16_t cs89x0_getppreg(struct cs89x0_driver_s *cs89x0, int addr)
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2009-05-01 00:46:48 +02:00
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{
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2009-05-02 01:42:40 +02:00
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/* In memory mode, the CS89x0's internal registers and frame buffers are mapped
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* into a contiguous 4kb block providing direct access to the internal registers
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* and frame buffers.
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*/
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#ifdef CONFIG_CS89x0_MEMMODE
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if (cs89x0->cs_memmode)
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{
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2009-05-01 00:46:48 +02:00
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#ifdef CONFIG_CS89x0_ALIGN16
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2009-05-02 01:42:40 +02:00
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return getreg16(s89x0->cs_ppbase + (CS89x0_PDATA_OFFSET << ??));
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2009-05-01 00:46:48 +02:00
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#else
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2009-12-15 15:25:14 +01:00
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return (uint16_t)getreg32(s89x0->cs_ppbase + (CS89x0_PDATA_OFFSET << ??));
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2009-05-01 00:46:48 +02:00
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#endif
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2009-05-02 01:42:40 +02:00
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}
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/* When configured in I/O mode, the CS89x0 is accessed through eight, 16-bit
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* I/O ports that in the host system's I/O space.
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*/
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else
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#endif
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{
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#ifdef CONFIG_CS89x0_ALIGN16
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2009-12-15 15:25:14 +01:00
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putreg16((uint16_t)addr, cs89x0->cs_base + CS89x0_PPTR_OFFSET);
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2009-05-02 01:42:40 +02:00
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return getreg16(s89x0->cs_base + CS89x0_PDATA_OFFSET);
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#else
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2009-12-15 15:25:14 +01:00
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putreg32((uint32_t)addr, cs89x0->cs_base + CS89x0_PPTR_OFFSET);
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return (uint16_t)getreg32(s89x0->cs_base + CS89x0_PDATA_OFFSET);
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2009-05-02 01:42:40 +02:00
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#endif
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}
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2009-05-01 00:46:48 +02:00
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}
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2009-12-15 15:25:14 +01:00
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static void cs89x0_putppreg(struct cs89x0_driver_s *cs89x0, int addr, uint16_t value)
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2009-05-01 00:46:48 +02:00
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{
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2009-05-02 01:42:40 +02:00
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/* In memory mode, the CS89x0's internal registers and frame buffers are mapped
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* into a contiguous 4kb block providing direct access to the internal registers
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* and frame buffers.
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*/
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#ifdef CONFIG_CS89x0_MEMMODE
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if (cs89x0->cs_memmode)
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{
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#ifdef CONFIG_CS89x0_ALIGN16
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putreg16(value), cs89x0->cs_ppbase + (CS89x0_PDATA_OFFSET << ??));
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#else
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2009-12-15 15:25:14 +01:00
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putreg32((uint32_t)value, cs89x0->cs_ppbase + (CS89x0_PDATA_OFFSET << ??));
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2009-05-02 01:42:40 +02:00
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#endif
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}
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/* When configured in I/O mode, the CS89x0 is accessed through eight, 16-bit
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* I/O ports that in the host system's I/O space.
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*/
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else
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#endif
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{
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2009-05-01 00:46:48 +02:00
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#ifdef CONFIG_CS89x0_ALIGN16
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2009-12-15 15:25:14 +01:00
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putreg16((uint16_t)addr, cs89x0->cs_base + CS89x0_PPTR_OFFSET);
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2009-05-02 01:42:40 +02:00
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putreg16(value, cs89x0->cs_base + CS89x0_PDATA_OFFSET);
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2009-05-01 00:46:48 +02:00
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#else
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2009-12-15 15:25:14 +01:00
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putreg32((uint32_t)addr, cs89x0->cs_base + CS89x0_PPTR_OFFSET);
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putreg32((uint32_t)value, cs89x0->cs_base + CS89x0_PDATA_OFFSET);
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2009-05-01 00:46:48 +02:00
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#endif
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2009-05-02 01:42:40 +02:00
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}
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2009-05-01 00:46:48 +02:00
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}
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2009-04-30 02:39:41 +02:00
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/****************************************************************************
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* Function: cs89x0_transmit
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*
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* Description:
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* Start hardware transmission. Called either from the txdone interrupt
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* handling or from watchdog based polling.
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*
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* Parameters:
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* cs89x0 - Reference to the driver state structure
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*
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* Returned Value:
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* OK on success; a negated errno on failure
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*
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* Assumptions:
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*
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****************************************************************************/
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static int cs89x0_transmit(struct cs89x0_driver_s *cs89x0)
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{
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/* Verify that the hardware is ready to send another packet */
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2009-05-01 00:46:48 +02:00
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#warning "Missing logic"
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2009-04-30 02:39:41 +02:00
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/* Increment statistics */
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2009-05-01 00:46:48 +02:00
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#warning "Missing logic"
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2009-04-30 02:39:41 +02:00
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/* Disable Ethernet interrupts */
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2009-05-01 00:46:48 +02:00
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#warning "Missing logic"
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2009-04-30 02:39:41 +02:00
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2009-05-01 00:46:48 +02:00
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/* Send the packet: address=cs89x0->cs_dev.d_buf, length=cs89x0->cs_dev.d_len */
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#warning "Missing logic"
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2009-04-30 02:39:41 +02:00
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/* Restore Ethernet interrupts */
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2009-05-01 00:46:48 +02:00
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#warning "Missing logic"
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2009-04-30 02:39:41 +02:00
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/* Setup the TX timeout watchdog (perhaps restarting the timer) */
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2009-12-15 15:25:14 +01:00
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(void)wd_start(cs89x0->cs_txtimeout, CS89x0_TXTIMEOUT, cs89x0_txtimeout, 1, (uint32_t)cs89x0);
|
2009-04-30 02:39:41 +02:00
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_uiptxpoll
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* The transmitter is available, check if uIP has any outgoing packets ready
|
|
|
|
* to send. This is a callback from uip_poll(). uip_poll() may be called:
|
|
|
|
*
|
|
|
|
* 1. When the preceding TX packet send is complete,
|
|
|
|
* 2. When the preceding TX packet send timesout and the interface is reset
|
|
|
|
* 3. During normal TX polling
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* OK on success; a negated errno on failure
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int cs89x0_uiptxpoll(struct uip_driver_s *dev)
|
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
|
|
|
|
/* If the polling resulted in data that should be sent out on the network,
|
|
|
|
* the field d_len is set to a value > 0.
|
|
|
|
*/
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
if (cs89x0->cs_dev.d_len > 0)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
uip_arp_out(&cs89x0->cs_dev);
|
2009-04-30 02:39:41 +02:00
|
|
|
cs89x0_transmit(cs89x0);
|
|
|
|
|
|
|
|
/* Check if there is room in the CS89x0 to hold another packet. If not,
|
|
|
|
* return a non-zero value to terminate the poll.
|
|
|
|
*/
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* If zero is returned, the polling will continue until all connections have
|
|
|
|
* been examined.
|
|
|
|
*/
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_receive
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* An interrupt was received indicating the availability of a new RX packet
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* cs89x0 - Reference to the driver state structure
|
2009-05-01 00:46:48 +02:00
|
|
|
* isq - Interrupt status queue value read by interrupt handler
|
2009-04-30 02:39:41 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
static void cs89x0_receive(struct cs89x0_driver_s *cs89x0, uint16_t isq)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-12-15 15:25:14 +01:00
|
|
|
uint16_t *dest;
|
|
|
|
uint16_t rxlength;
|
2009-05-01 00:46:48 +02:00
|
|
|
int nbytes;
|
|
|
|
|
|
|
|
/* Check for errors and update statistics */
|
|
|
|
|
|
|
|
rxlength = cs89x0_getreg(PPR_RXLENGTH);
|
|
|
|
if ((isq & RX_OK) == 0)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.rx_errors++;
|
|
|
|
if ((isq & RX_RUNT) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.rx_lengtherrors++;
|
|
|
|
}
|
|
|
|
if ((isq & RX_EXTRA_DATA) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.rx_lengtherrors++;
|
|
|
|
}
|
|
|
|
if (isq & RX_CRC_ERROR) != 0)
|
|
|
|
{
|
|
|
|
if (!(isq & (RX_EXTRA_DATA|RX_RUNT)))
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.rx_crcerrors++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ((isq & RX_DRIBBLE) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.rx_frameerrors++;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return;
|
|
|
|
}
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Check if the packet is a valid size for the uIP buffer configuration */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
if (rxlength > ???)
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.rx_errors++;
|
|
|
|
cd89x0->cs_stats.rx_lengtherrors++;
|
|
|
|
#endif
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Copy the data data from the hardware to cs89x0->cs_dev.d_buf. Set
|
|
|
|
* amount of data in cs89x0->cs_dev.d_len
|
|
|
|
*/
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
dest = (uint16_t*)cs89x0->cs_dev.d_buf;
|
|
|
|
for (nbytes = 0; nbytes < rxlength; nbytes += sizeof(uint16_t))
|
2009-05-01 00:46:48 +02:00
|
|
|
{
|
|
|
|
*dest++ = cs89x0_getreg(PPR_RXFRAMELOCATION);
|
|
|
|
}
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.rx_packets++;
|
|
|
|
#endif
|
|
|
|
/* We only accept IP packets of the configured type and ARP packets */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
#ifdef CONFIG_NET_IPv6
|
2009-05-01 00:46:48 +02:00
|
|
|
if (BUF->type == HTONS(UIP_ETHTYPE_IP6))
|
2009-04-30 02:39:41 +02:00
|
|
|
#else
|
2009-05-01 00:46:48 +02:00
|
|
|
if (BUF->type == HTONS(UIP_ETHTYPE_IP))
|
2009-04-30 02:39:41 +02:00
|
|
|
#endif
|
2009-05-01 00:46:48 +02:00
|
|
|
{
|
|
|
|
uip_arp_ipin();
|
|
|
|
uip_input(&cs89x0->cs_dev);
|
|
|
|
|
|
|
|
/* If the above function invocation resulted in data that should be
|
|
|
|
* sent out on the network, the field d_len will set to a value > 0.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (cs89x0->cs_dev.d_len > 0)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
uip_arp_out(&cs89x0->cs_dev);
|
|
|
|
cs89x0_transmit(cs89x0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else if (BUF->type == htons(UIP_ETHTYPE_ARP))
|
|
|
|
{
|
|
|
|
uip_arp_arpin(&cs89x0->cs_dev);
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/* If the above function invocation resulted in data that should be
|
|
|
|
* sent out on the network, the field d_len will set to a value > 0.
|
|
|
|
*/
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
if (cs89x0->cs_dev.d_len > 0)
|
|
|
|
{
|
|
|
|
cs89x0_transmit(cs89x0);
|
|
|
|
}
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_txdone
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* An interrupt was received indicating that the last TX packet(s) is done
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* cs89x0 - Reference to the driver state structure
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
static void cs89x0_txdone(struct cs89x0_driver_s *cs89x0, uint16_t isq)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Check for errors and update statistics. The lower 6-bits of the ISQ
|
|
|
|
* hold the register address causing the interrupt. We got here because
|
|
|
|
* those bits indicated */
|
|
|
|
|
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.tx_packets++;
|
|
|
|
if ((isq & ISQ_TXEVENT_TXOK) == 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.tx_errors++;
|
|
|
|
}
|
|
|
|
if ((isq & ISQ_TXEVENT_LOSSOFCRS) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.tx_carriererrors++;
|
|
|
|
}
|
|
|
|
if ((isq & ISQ_TXEVENT_SQEERROR) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.tx_heartbeaterrors++;
|
|
|
|
}
|
|
|
|
if (i(sq & ISQ_TXEVENT_OUTWINDOW) != 0)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.tx_windowerrors++;
|
|
|
|
}
|
|
|
|
if (isq & TX_16_COL)
|
|
|
|
{
|
|
|
|
cd89x0->cs_stats.tx_abortederrors++;
|
|
|
|
}
|
|
|
|
#endif
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* If no further xmits are pending, then cancel the TX timeout */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
wd_cancel(cs89x0->cs_txtimeout);
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Then poll uIP for new XMIT data */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)uip_poll(&cs89x0->cs_dev, cs89x0_uiptxpoll);
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_mapirq
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Map an IRQ number to a CS89x0 device state instance. This is only
|
|
|
|
* necessary to handler the case where the architecture includes more than
|
|
|
|
* on CS89x0 chip.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* irq - Number of the IRQ that generated the interrupt
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* A reference to device state structure (NULL if irq does not correspond
|
|
|
|
* to any CS89x0 device).
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#if CONFIG_CS89x0_NINTERFACES > 1
|
|
|
|
static inline FAR struct cs89x0_driver_s *cs89x0_mapirq(int irq)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
for (i = 0; i < CONFIG_CS89x0_NINTERFACES; i++)
|
|
|
|
{
|
|
|
|
if (g_cs89x0[i] && g_cs89x0[i].irq == irq)
|
|
|
|
{
|
|
|
|
return g_cs89x0[i];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL'
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-04-30 02:39:41 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_interrupt
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Hardware interrupt handler
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* irq - Number of the IRQ that generated the interrupt
|
|
|
|
* context - Interrupt register state save info (architecture-specific)
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* OK on success
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int cs89x0_interrupt(int irq, FAR void *context)
|
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
register struct cs89x0_driver_s *cs89x0 = s89x0_mapirq(irq);
|
2009-12-15 15:25:14 +01:00
|
|
|
uint16_t isq;
|
2009-05-01 00:46:48 +02:00
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG
|
|
|
|
if (!cs89x0)
|
|
|
|
{
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
#endif
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Read and process all of the events from the ISQ */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
while ((isq = cs89x0_getreg(dev, CS89x0_ISQ_OFFSET)) != 0)
|
|
|
|
{
|
|
|
|
nvdbg("ISQ: %04x\n", isq);
|
|
|
|
switch (isq & ISQ_EVENTMASK)
|
|
|
|
{
|
|
|
|
case ISQ_RXEVENT:
|
|
|
|
cs89x0_receive(cs89x0);
|
|
|
|
break;
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
case ISQ_TXEVENT:
|
|
|
|
cs89x0_txdone(cs89x0, isq);
|
|
|
|
break;
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
case ISQ_BUFEVENT:
|
|
|
|
if ((isq & ISQ_BUFEVENT_TXUNDERRUN) != 0)
|
|
|
|
{
|
|
|
|
ndbg("Transmit underrun\n");
|
|
|
|
#ifdef CONFIG_CS89x0_XMITEARLY
|
|
|
|
cd89x0->cs_txunderrun++;
|
|
|
|
if (cd89x0->cs_txunderrun == 3)
|
|
|
|
{
|
2009-05-02 01:42:40 +02:00
|
|
|
cd89x0->cs_txstart = PPR_TXCMD_TXSTART381;
|
2009-05-01 00:46:48 +02:00
|
|
|
}
|
|
|
|
else if (cd89x0->cs_txunderrun == 6)
|
|
|
|
{
|
2009-05-02 01:42:40 +02:00
|
|
|
cd89x0->cs_txstart = PPR_TXCMD_TXSTARTFULL;
|
2009-05-01 00:46:48 +02:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
break;
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
case ISQ_RXMISSEVENT:
|
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.rx_missederrors += (isq >>6);
|
|
|
|
#endif
|
|
|
|
break;
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
case ISQ_TXCOLEVENT:
|
|
|
|
#ifdef CONFIG_C89x0_STATISTICS
|
|
|
|
cd89x0->cs_stats.collisions += (isq >>6);
|
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2009-04-30 02:39:41 +02:00
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_txtimeout
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Our TX watchdog timed out. Called from the timer interrupt handler.
|
|
|
|
* The last TX never completed. Reset the hardware and start again.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* argc - The number of available arguments
|
|
|
|
* arg - The first argument
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
static void cs89x0_txtimeout(int argc, uint32_t arg, ...)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)arg;
|
|
|
|
|
|
|
|
/* Increment statistics and dump debug info */
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Then reset the hardware */
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Then poll uIP for new XMIT data */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)uip_poll(&cs89x0->cs_dev, cs89x0_uiptxpoll);
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_polltimer
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Periodic timer handler. Called from the timer interrupt handler.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* argc - The number of available arguments
|
|
|
|
* arg - The first argument
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
static void cs89x0_polltimer(int argc, uint32_t arg, ...)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)arg;
|
|
|
|
|
|
|
|
/* Check if there is room in the send another TXr packet. */
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* If so, update TCP timing states and poll uIP for new XMIT data */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)uip_timer(&cs89x0->cs_dev, cs89x0_uiptxpoll, CS89x0_POLLHSEC);
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Setup the watchdog poll timer again */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)wd_start(cs89x0->cs_txpoll, CS89x0_WDDELAY, cs89x0_polltimer, 1, arg);
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_ifup
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* NuttX Callback: Bring up the Ethernet interface when an IP address is
|
|
|
|
* provided
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int cs89x0_ifup(struct uip_driver_s *dev)
|
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
|
|
|
|
ndbg("Bringing up: %d.%d.%d.%d\n",
|
|
|
|
dev->d_ipaddr & 0xff, (dev->d_ipaddr >> 8) & 0xff,
|
|
|
|
(dev->d_ipaddr >> 16) & 0xff, dev->d_ipaddr >> 24 );
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Initialize the Ethernet interface */
|
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Set and activate a timer process */
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
(void)wd_start(cs89x0->cs_txpoll, CS89x0_WDDELAY, cs89x0_polltimer, 1, (uint32_t)cs89x0);
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Enable the Ethernet interrupt */
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
cs89x0->cs_bifup = true;
|
2009-04-30 02:39:41 +02:00
|
|
|
up_enable_irq(CONFIG_CS89x0_IRQ);
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_ifdown
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* NuttX Callback: Stop the interface.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int cs89x0_ifdown(struct uip_driver_s *dev)
|
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
irqstate_t flags;
|
|
|
|
|
|
|
|
/* Disable the Ethernet interrupt */
|
|
|
|
|
|
|
|
flags = irqsave();
|
|
|
|
up_disable_irq(CONFIG_CS89x0_IRQ);
|
|
|
|
|
|
|
|
/* Cancel the TX poll timer and TX timeout timers */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
wd_cancel(cs89x0->cs_txpoll);
|
|
|
|
wd_cancel(cs89x0->cs_txtimeout);
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Reset the device */
|
|
|
|
|
2009-12-15 15:25:14 +01:00
|
|
|
cs89x0->cs_bifup = false;
|
2009-04-30 02:39:41 +02:00
|
|
|
irqrestore(flags);
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_txavail
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Driver callback invoked when new TX data is available. This is a
|
|
|
|
* stimulus perform an out-of-cycle poll and, thereby, reduce the TX
|
|
|
|
* latency.
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
* Called in normal user mode
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
static int cs89x0_txavail(struct uip_driver_s *dev)
|
|
|
|
{
|
|
|
|
struct cs89x0_driver_s *cs89x0 = (struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
irqstate_t flags;
|
|
|
|
|
|
|
|
flags = irqsave();
|
|
|
|
|
|
|
|
/* Ignore the notification if the interface is not yet up */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
if (cs89x0->cs_bifup)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
|
|
|
/* Check if there is room in the hardware to hold another outgoing packet. */
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* If so, then poll uIP for new XMIT data */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)uip_poll(&cs89x0->cs_dev, cs89x0_uiptxpoll);
|
2009-04-30 02:39:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
irqrestore(flags);
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
2010-07-11 17:17:11 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_addmac
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* NuttX Callback: Add the specified MAC address to the hardware multicast
|
|
|
|
* address filtering
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
* mac - The MAC address to be added
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_IGMP
|
|
|
|
static int cs89x0_addmac(struct uip_driver_s *dev, FAR const uint8_t *mac)
|
|
|
|
{
|
|
|
|
FAR struct cs89x0_driver_s *priv = (FAR struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
|
|
|
|
/* Add the MAC address to the hardware multicast routing table */
|
|
|
|
|
|
|
|
#warning "Multicast MAC support not implemented"
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_rmmac
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* NuttX Callback: Remove the specified MAC address from the hardware multicast
|
|
|
|
* address filtering
|
|
|
|
*
|
|
|
|
* Parameters:
|
|
|
|
* dev - Reference to the NuttX driver state structure
|
|
|
|
* mac - The MAC address to be removed
|
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* None
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef CONFIG_NET_IGMP
|
|
|
|
static int cs89x0_rmmac(struct uip_driver_s *dev, FAR const uint8_t *mac)
|
|
|
|
{
|
|
|
|
FAR struct cs89x0_driver_s *priv = (FAR struct cs89x0_driver_s *)dev->d_private;
|
|
|
|
|
|
|
|
/* Add the MAC address to the hardware multicast routing table */
|
|
|
|
|
|
|
|
#warning "Multicast MAC support not implemented"
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-04-30 02:39:41 +02:00
|
|
|
/****************************************************************************
|
|
|
|
* Public Functions
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
* Function: cs89x0_initialize
|
|
|
|
*
|
|
|
|
* Description:
|
|
|
|
* Initialize the Ethernet driver
|
|
|
|
*
|
|
|
|
* Parameters:
|
2009-06-25 19:44:35 +02:00
|
|
|
* impl - decribes the implementation of the cs89x00 implementation.
|
2009-05-01 00:46:48 +02:00
|
|
|
* This reference is retained so so must remain stable throughout the
|
|
|
|
* life of the driver instance.
|
|
|
|
* devno - Identifies the device number. This must be a number between
|
|
|
|
* zero CONFIG_CS89x0_NINTERFACES and the same devno must not be
|
|
|
|
* initialized twice. The associated network device will be referred
|
|
|
|
* to with the name "eth" followed by this number (eth0, eth1, etc).
|
2009-04-30 02:39:41 +02:00
|
|
|
*
|
|
|
|
* Returned Value:
|
|
|
|
* OK on success; Negated errno on failure.
|
|
|
|
*
|
|
|
|
* Assumptions:
|
|
|
|
*
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/* Initialize the CS89x0 chip and driver */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
int cs89x0_initialize(FAR const cs89x0_driver_s *cs89x0, int devno)
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Sanity checks -- only performed with debug enabled */
|
|
|
|
|
|
|
|
#ifdef CONFIG_DEBUG
|
|
|
|
if (!cs89x0 || (unsigned)devno > CONFIG_CS89x0_NINTERFACES || g_cs89x00[devno])
|
|
|
|
{
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-04-30 02:39:41 +02:00
|
|
|
/* Check if a Ethernet chip is recognized at its I/O base */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
#warning "Missing logic"
|
|
|
|
|
2009-04-30 02:39:41 +02:00
|
|
|
/* Attach the IRQ to the driver */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
if (irq_attach(cs89x0->irq, cs89x0_interrupt))
|
2009-04-30 02:39:41 +02:00
|
|
|
{
|
|
|
|
/* We could not attach the ISR to the ISR */
|
|
|
|
|
|
|
|
return -EAGAIN;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Initialize the driver structure */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
g_cs89x[devno] = cs89x0; /* Used to map IRQ back to instance */
|
|
|
|
cs89x0->cs_dev.d_ifup = cs89x0_ifup; /* I/F down callback */
|
|
|
|
cs89x0->cs_dev.d_ifdown = cs89x0_ifdown; /* I/F up (new IP address) callback */
|
|
|
|
cs89x0->cs_dev.d_txavail = cs89x0_txavail; /* New TX data callback */
|
2010-07-11 17:17:11 +02:00
|
|
|
#ifdef CONFIG_NET_IGMP
|
|
|
|
cs89x0->cs_dev.d_addmac = cs89x0_addmac; /* Add multicast MAC address */
|
|
|
|
cs89x0->cs_dev.d_rmmac = cs89x0_rmmac; /* Remove multicast MAC address */
|
|
|
|
#endif
|
2009-05-01 00:46:48 +02:00
|
|
|
cs89x0->cs_dev.d_private = (void*)cs89x0; /* Used to recover private state from dev */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Create a watchdog for timing polling for and timing of transmisstions */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
cs89x0->cs_txpoll = wd_create(); /* Create periodic poll timer */
|
|
|
|
cs89x0->cs_txtimeout = wd_create(); /* Create TX timeout timer */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
/* Read the MAC address from the hardware into cs89x0->cs_dev.d_mac.ether_addr_octet */
|
2009-04-30 02:39:41 +02:00
|
|
|
|
|
|
|
/* Register the device with the OS so that socket IOCTLs can be performed */
|
|
|
|
|
2009-05-01 00:46:48 +02:00
|
|
|
(void)netdev_register(&cs89x0->cs_dev);
|
2009-04-30 02:39:41 +02:00
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* CONFIG_NET && CONFIG_NET_CS89x0 */
|
|
|
|
|