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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1195 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2009-09-30 18:05:32 +00:00
parent 3a397f9f5b
commit b55631f714
11 changed files with 662 additions and 17 deletions
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4
demos/ARM7-AT91SAM7X-WEB-GCC/Makefile
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@ -65,11 +65,11 @@ CSRC = ${PORTSRC} \
${USRC} \ ${USRC} \
${CHIBIOS}/os/io/pal.c \ ${CHIBIOS}/os/io/pal.c \
${CHIBIOS}/os/io/serial.c \ ${CHIBIOS}/os/io/serial.c \
${CHIBIOS}/os/io/phy.c \ ${CHIBIOS}/os/io/mii.c \
${CHIBIOS}/os/io/mac.c \ ${CHIBIOS}/os/io/mac.c \
${CHIBIOS}/os/io/platforms/AT91SAM7X/pal_lld.c \ ${CHIBIOS}/os/io/platforms/AT91SAM7X/pal_lld.c \
${CHIBIOS}/os/io/platforms/AT91SAM7X/serial_lld.c \ ${CHIBIOS}/os/io/platforms/AT91SAM7X/serial_lld.c \
${CHIBIOS}/os/io/platforms/AT91SAM7X/phy_lld.c \ ${CHIBIOS}/os/io/platforms/AT91SAM7X/mii_lld.c \
${CHIBIOS}/os/io/platforms/AT91SAM7X/mac_lld.c \ ${CHIBIOS}/os/io/platforms/AT91SAM7X/mac_lld.c \
${CHIBIOS}/os/io/platforms/AT91SAM7X/at91lib/aic.c \ ${CHIBIOS}/os/io/platforms/AT91SAM7X/at91lib/aic.c \
${CHIBIOS}/os/various/evtimer.c \ ${CHIBIOS}/os/various/evtimer.c \

43
os/io/io.dox
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@ -17,7 +17,6 @@
along with this program. If not, see <http://www.gnu.org/licenses/>. along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
/** /**
* @defgroup IO I/O * @defgroup IO I/O
* @brief I/O related services. * @brief I/O related services.
@ -47,6 +46,7 @@
* The I/O subsystem currently includes support for: * The I/O subsystem currently includes support for:
* - @ref PAL. * - @ref PAL.
* - @ref SERIAL. * - @ref SERIAL.
* - @ref MAC
* . * .
*/ */
@ -123,7 +123,7 @@
* to notify the application about incoming data, outgoing data and other I/O * to notify the application about incoming data, outgoing data and other I/O
* events.<br> * events.<br>
* The module also contains functions that make the implementation of the * The module also contains functions that make the implementation of the
* interrupt service routines much easier.<br> * interrupt service routines much easier.
* *
* @ingroup IO * @ingroup IO
*/ */
@ -135,3 +135,42 @@
* *
* @ingroup SERIAL * @ingroup SERIAL
*/ */
/**
* @defgroup MAC MAC Driver
* @brief Generic MAC driver.
* @details This module implements a generic interface for MAC (Media
* Access Control) drivers, as example Ethernet controllers.
*
* @ingroup IO
*/
/**
* @defgroup MAC_LLD MAC Low Level Driver
* @brief @ref MAC low level driver template.
* @details This file is a template for a MAC low level driver.
*
* @ingroup MAC
*/
/**
* @defgroup MII MII Driver
* @brief Generic MII driver.
* @details This module implements a generic interface for MII (Media
* Independent Interface) drivers.
* The MII/RMII/GMII/RGMII/SGMII buses are standard interfaces meant
* to connect a @ref MAC block to a PHY transceiver.<br>
* A @ref MII is usually used from within a @ref MAC and is not
* meant to be used directly from the application code.
*
* @ingroup IO
*/
/**
* @defgroup MII_LLD MII Low Level Driver
* @brief @ref MII low level driver template.
* @details This file is a template for a MII low level driver.
*
* @ingroup MII
*/

2
os/io/mac.c
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@ -109,7 +109,6 @@ msg_t macWaitTransmitDescriptor(MACDriver *macp,
* @brief Releases a transmit descriptor and starts the transmission of the * @brief Releases a transmit descriptor and starts the transmission of the
* enqueued data as a single frame. * enqueued data as a single frame.
* *
* @param[in] macp pointer to the @p MACDriver object
* @param[in] tdp the pointer to the @p MACTransmitDescriptor structure * @param[in] tdp the pointer to the @p MACTransmitDescriptor structure
*/ */
void macReleaseTransmitDescriptor(MACTransmitDescriptor *tdp) { void macReleaseTransmitDescriptor(MACTransmitDescriptor *tdp) {
@ -157,7 +156,6 @@ msg_t macWaitReceiveDescriptor(MACDriver *macp,
* @details The descriptor and its buffer are made available for more incoming * @details The descriptor and its buffer are made available for more incoming
* frames. * frames.
* *
* @param[in] macp pointer to the @p MACDriver object
* @param[in] rdp the pointer to the @p MACReceiveDescriptor structure * @param[in] rdp the pointer to the @p MACReceiveDescriptor structure
*/ */
void macReleaseReceiveDescriptor(MACReceiveDescriptor *rdp) { void macReleaseReceiveDescriptor(MACReceiveDescriptor *rdp) {

37
os/io/mii.c Normal file
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@ -0,0 +1,37 @@
/*
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 mii.c
* @brief mii Driver code.
* @addtogroup MII
* @{
*/
#include <ch.h>
#include <mac.h>
#include <mii.h>
/*
* Currently there is no code, everything is done in the header, you may
* omit this file from the project but this may change in future releases.
* The file is here because the driver's naming pattern.
*/
/** @} */

220
os/io/mii.h Normal file
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@ -0,0 +1,220 @@
/*
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/>.
*/
/*
* Parts of this file are borrowed by the Linux include file linux/mii.h:
* Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
*/
/**
* @file mii.h
* @brief MII Driver macros and structures.
* @addtogroup MII
* @{
*/
#ifndef _MII_H_
#define _MII_H_
#include "mac_lld.h"
#include "mii_lld.h"
/*
* Generic MII registers. Note, not all registers are present on all PHY
* devices and some extra registers may be present.
*/
#define MII_BMCR 0x00 /**< Basic mode control register. */
#define MII_BMSR 0x01 /**< Basic mode status register. */
#define MII_PHYSID1 0x02 /**< PHYS ID 1. */
#define MII_PHYSID2 0x03 /**< PHYS ID 2. */
#define MII_ADVERTISE 0x04 /**< Advertisement control reg. */
#define MII_LPA 0x05 /**< Link partner ability reg. */
#define MII_EXPANSION 0x06 /**< Expansion register. */
#define MII_CTRL1000 0x09 /**< 1000BASE-T control. */
#define MII_STAT1000 0x0a /**< 1000BASE-T status. */
#define MII_ESTATUS 0x0f /**< Extended Status. */
#define MII_DCOUNTER 0x12 /**< Disconnect counter. */
#define MII_FCSCOUNTER 0x13 /**< False carrier counter. */
#define MII_NWAYTEST 0x14 /**< N-way auto-neg test reg. */
#define MII_RERRCOUNTER 0x15 /**< Receive error counter. */
#define MII_SREVISION 0x16 /**< Silicon revision. */
#define MII_RESV1 0x17 /**< Reserved. */
#define MII_LBRERROR 0x18 /**< Lpback, rx, bypass error. */
#define MII_PHYADDR 0x19 /**< PHY address. */
#define MII_RESV2 0x1a /**< Reserved. */
#define MII_TPISTATUS 0x1b /**< TPI status for 10mbps. */
#define MII_NCONFIG 0x1c /**< Network interface config. */
/*
* Basic mode control register.
*/
#define BMCR_RESV 0x003f /**< Unused. */
#define BMCR_SPEED1000 0x0040 /**< MSB of Speed (1000). */
#define BMCR_CTST 0x0080 /**< Collision test. */
#define BMCR_FULLDPLX 0x0100 /**< Full duplex. */
#define BMCR_ANRESTART 0x0200 /**< Auto negotiation restart. */
#define BMCR_ISOLATE 0x0400 /**< Disconnect DP83840 from MII. */
#define BMCR_PDOWN 0x0800 /**< Powerdown. */
#define BMCR_ANENABLE 0x1000 /**< Enable auto negotiation. */
#define BMCR_SPEED100 0x2000 /**< Select 100Mbps. */
#define BMCR_LOOPBACK 0x4000 /**< TXD loopback bits. */
#define BMCR_RESET 0x8000 /**< Reset. */
/*
* Basic mode status register.
*/
#define BMSR_ERCAP 0x0001 /**< Ext-reg capability. */
#define BMSR_JCD 0x0002 /**< Jabber detected. */
#define BMSR_LSTATUS 0x0004 /**< Link status. */
#define BMSR_ANEGCAPABLE 0x0008 /**< Able to do auto-negotiation. */
#define BMSR_RFAULT 0x0010 /**< Remote fault detected. */
#define BMSR_ANEGCOMPLETE 0x0020 /**< Auto-negotiation complete. */
#define BMSR_RESV 0x00c0 /**< Unused. */
#define BMSR_ESTATEN 0x0100 /**< Extended Status in R15. */
#define BMSR_100HALF2 0x0200 /**< Can do 100BASE-T2 HDX. */
#define BMSR_100FULL2 0x0400 /**< Can do 100BASE-T2 FDX. */
#define BMSR_10HALF 0x0800 /**< Can do 10mbps, half-duplex. */
#define BMSR_10FULL 0x1000 /**< Can do 10mbps, full-duplex. */
#define BMSR_100HALF 0x2000 /**< Can do 100mbps, half-duplex. */
#define BMSR_100FULL 0x4000 /**< Can do 100mbps, full-duplex. */
#define BMSR_100BASE4 0x8000 /**< Can do 100mbps, 4k packets. */
/*
* Advertisement control register.
*/
#define ADVERTISE_SLCT 0x001f /**< Selector bits. */
#define ADVERTISE_CSMA 0x0001 /**< Only selector supported. */
#define ADVERTISE_10HALF 0x0020 /**< Try for 10mbps half-duplex. */
#define ADVERTISE_1000XFULL 0x0020 /**< Try for 1000BASE-X full-duplex.*/
#define ADVERTISE_10FULL 0x0040 /**< Try for 10mbps full-duplex. */
#define ADVERTISE_1000XHALF 0x0040 /**< Try for 1000BASE-X half-duplex.*/
#define ADVERTISE_100HALF 0x0080 /**< Try for 100mbps half-duplex. */
#define ADVERTISE_1000XPAUSE 0x0080 /**< Try for 1000BASE-X pause. */
#define ADVERTISE_100FULL 0x0100 /**< Try for 100mbps full-duplex. */
#define ADVERTISE_1000XPSE_ASYM 0x0100 /**< Try for 1000BASE-X asym pause. */
#define ADVERTISE_100BASE4 0x0200 /**< Try for 100mbps 4k packets. */
#define ADVERTISE_PAUSE_CAP 0x0400 /**< Try for pause. */
#define ADVERTISE_PAUSE_ASYM 0x0800 /**< Try for asymetric pause. */
#define ADVERTISE_RESV 0x1000 /**< Unused. */
#define ADVERTISE_RFAULT 0x2000 /**< Say we can detect faults. */
#define ADVERTISE_LPACK 0x4000 /**< Ack link partners response. */
#define ADVERTISE_NPAGE 0x8000 /**< Next page bit. */
#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL | \
ADVERTISE_CSMA)
#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
ADVERTISE_100HALF | ADVERTISE_100FULL)
/*
* Link partner ability register.
*/
#define LPA_SLCT 0x001f /**< Same as advertise selector. */
#define LPA_10HALF 0x0020 /**< Can do 10mbps half-duplex. */
#define LPA_1000XFULL 0x0020 /**< Can do 1000BASE-X full-duplex. */
#define LPA_10FULL 0x0040 /**< Can do 10mbps full-duplex. */
#define LPA_1000XHALF 0x0040 /**< Can do 1000BASE-X half-duplex. */
#define LPA_100HALF 0x0080 /**< Can do 100mbps half-duplex. */
#define LPA_1000XPAUSE 0x0080 /**< Can do 1000BASE-X pause. */
#define LPA_100FULL 0x0100 /**< Can do 100mbps full-duplex. */
#define LPA_1000XPAUSE_ASYM 0x0100 /**< Can do 1000BASE-X pause asym. */
#define LPA_100BASE4 0x0200 /**< Can do 100mbps 4k packets. */
#define LPA_PAUSE_CAP 0x0400 /**< Can pause. */
#define LPA_PAUSE_ASYM 0x0800 /**< Can pause asymetrically. */
#define LPA_RESV 0x1000 /**< Unused. */
#define LPA_RFAULT 0x2000 /**< Link partner faulted. */
#define LPA_LPACK 0x4000 /**< Link partner acked us. */
#define LPA_NPAGE 0x8000 /**< Next page bit. */
#define LPA_DUPLEX (LPA_10FULL | LPA_100FULL)
#define LPA_100 (LPA_100FULL | LPA_100HALF | LPA_100BASE4)
/*
* Expansion register for auto-negotiation.
*/
#define EXPANSION_NWAY 0x0001 /**< Can do N-way auto-nego. */
#define EXPANSION_LCWP 0x0002 /**< Got new RX page code word. */
#define EXPANSION_ENABLENPAGE 0x0004 /**< This enables npage words. */
#define EXPANSION_NPCAPABLE 0x0008 /**< Link partner supports npage. */
#define EXPANSION_MFAULTS 0x0010 /**< Multiple faults detected. */
#define EXPANSION_RESV 0xffe0 /**< Unused. */
#define ESTATUS_1000_TFULL 0x2000 /**< Can do 1000BT Full. */
#define ESTATUS_1000_THALF 0x1000 /**< Can do 1000BT Half. */
/*
* N-way test register.
*/
#define NWAYTEST_RESV1 0x00ff /**< Unused. */
#define NWAYTEST_LOOPBACK 0x0100 /**< Enable loopback for N-way. */
#define NWAYTEST_RESV2 0xfe00 /**< Unused. */
/*
* 1000BASE-T Control register.
*/
#define ADVERTISE_1000FULL 0x0200 /**< Advertise 1000BASE-T full duplex.*/
#define ADVERTISE_1000HALF 0x0100 /**< Advertise 1000BASE-T half duplex.*/
/*
* 1000BASE-T Status register.
*/
#define LPA_1000LOCALRXOK 0x2000 /**< Link partner local receiver status.*/
#define LPA_1000REMRXOK 0x1000 /**< Link partner remote receiver status.*/
#define LPA_1000FULL 0x0800 /**< Link partner 1000BASE-T full duplex.*/
#define LPA_1000HALF 0x0400 /**< Link partner 1000BASE-T half duplex.*/
/*
* PHY identifiers.
*/
#define MII_DM9161_ID 0x0181b8a0
#define MII_AM79C875_ID 0x00225540
#define MII_KS8721_ID 0x00221610
/**
* @brief MII Driver initialization.
*/
#define miiInit() mii_lld_init()
/**
* Resets a MII device.
*
* @param[in] macp pointer to the @p MACDriver object
*/
#define miiReset(macp) mii_lld_reset(macp)
/**
* @brief Reads a MII register.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @return The register value.
*/
#define miiGet(macp, addr) mii_lld_get(macp, addr)
/**
* @brief Writes a MII register.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @param value the new register value
*/
#define miiPut(macp, addr, value) mii_lld_put(macp, addr, value)
#endif /**< _MII_H_ */
/** @} */

19
os/io/platforms/AT91SAM7X/mac_lld.c
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@ -28,9 +28,8 @@
#include <ch.h> #include <ch.h>
#include <mac.h> #include <mac.h>
#include <phy.h> #include <mii.h>
#include "mii.h"
#include "at91lib/aic.h" #include "at91lib/aic.h"
/** /**
@ -125,7 +124,7 @@ CH_IRQ_HANDLER(irq_handler) {
void mac_lld_init(void) { void mac_lld_init(void) {
unsigned i; unsigned i;
phyInit(); miiInit();
macObjectInit(&ETH1); macObjectInit(&ETH1);
/* /*
@ -147,7 +146,7 @@ void mac_lld_init(void) {
/* /*
* Associated PHY initialization. * Associated PHY initialization.
*/ */
phyReset(&ETH1); miiReset(&ETH1);
/* /*
* EMAC pins setup and clock enable. Note, PB18 is not included because it is * EMAC pins setup and clock enable. Note, PB18 is not included because it is
@ -180,8 +179,8 @@ void mac_lld_init(void) {
* PHY device identification. * PHY device identification.
*/ */
AT91C_BASE_EMAC->EMAC_NCR |= AT91C_EMAC_MPE; AT91C_BASE_EMAC->EMAC_NCR |= AT91C_EMAC_MPE;
if ((phyGet(&ETH1, MII_PHYSID1) != (MII_KS8721_ID >> 16)) || if ((miiGet(&ETH1, MII_PHYSID1) != (MII_KS8721_ID >> 16)) ||
((phyGet(&ETH1, MII_PHYSID2) & 0xFFF0) != (MII_KS8721_ID & 0xFFF0))) ((miiGet(&ETH1, MII_PHYSID2) & 0xFFF0) != (MII_KS8721_ID & 0xFFF0)))
chSysHalt(); chSysHalt();
AT91C_BASE_EMAC->EMAC_NCR &= ~AT91C_EMAC_MPE; AT91C_BASE_EMAC->EMAC_NCR &= ~AT91C_EMAC_MPE;
#endif #endif
@ -443,17 +442,17 @@ bool_t mac_lld_poll_link_status(MACDriver *macp) {
uint32_t ncfgr, bmsr, bmcr, lpa; uint32_t ncfgr, bmsr, bmcr, lpa;
AT91C_BASE_EMAC->EMAC_NCR |= AT91C_EMAC_MPE; AT91C_BASE_EMAC->EMAC_NCR |= AT91C_EMAC_MPE;
(void)phyGet(macp, MII_BMSR); (void)miiGet(macp, MII_BMSR);
bmsr = phyGet(macp, MII_BMSR); bmsr = miiGet(macp, MII_BMSR);
if (!(bmsr & BMSR_LSTATUS)) { if (!(bmsr & BMSR_LSTATUS)) {
AT91C_BASE_EMAC->EMAC_NCR &= ~AT91C_EMAC_MPE; AT91C_BASE_EMAC->EMAC_NCR &= ~AT91C_EMAC_MPE;
return link_up = FALSE; return link_up = FALSE;
} }
ncfgr = AT91C_BASE_EMAC->EMAC_NCFGR & ~(AT91C_EMAC_SPD | AT91C_EMAC_FD); ncfgr = AT91C_BASE_EMAC->EMAC_NCFGR & ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
bmcr = phyGet(macp, MII_BMCR); bmcr = miiGet(macp, MII_BMCR);
if (bmcr & BMCR_ANENABLE) { if (bmcr & BMCR_ANENABLE) {
lpa = phyGet(macp, MII_LPA); lpa = miiGet(macp, MII_LPA);
if (lpa & (LPA_100HALF | LPA_100FULL | LPA_100BASE4)) if (lpa & (LPA_100HALF | LPA_100FULL | LPA_100BASE4))
ncfgr |= AT91C_EMAC_SPD; ncfgr |= AT91C_EMAC_SPD;
if (lpa & (LPA_10FULL | LPA_100FULL)) if (lpa & (LPA_10FULL | LPA_100FULL))

115
os/io/platforms/AT91SAM7X/mii_lld.c Normal file
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@ -0,0 +1,115 @@
/*
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 AT91SAM7X/mii_lld.c
* @brief AT91SAM7X low level MII driver code
* @addtogroup AT91SAM7X_MII
* @{
*/
#include <ch.h>
#include <mac.h>
#include <mii.h>
/**
* @brief Low level MII driver initialization.
*/
void mii_lld_init(void) {
}
/**
* @brief Resets a PHY device.
*
* @param[in] macp pointer to the @p MACDriver object
*/
void mii_lld_reset(MACDriver *macp) {
/*
* Disables the pullups on all the pins that are latched on reset by the PHY.
* The status latched into the PHY is:
* PHYADDR = 00001
* PCS_LPBK = 0 (disabled)
* ISOLATE = 0 (disabled)
* RMIISEL = 0 (MII mode)
* RMIIBTB = 0 (BTB mode disabled)
* SPEED = 1 (100mbps)
* DUPLEX = 1 (full duplex)
* ANEG_EN = 1 (auto negotiation enabled)
*/
AT91C_BASE_PIOB->PIO_PPUDR = PHY_LATCHED_PINS;
#ifdef PIOB_PHY_PD_MASK
/*
* PHY power control.
*/
AT91C_BASE_PIOB->PIO_OER = PIOB_PHY_PD_MASK; // Becomes an output.
AT91C_BASE_PIOB->PIO_PPUDR = PIOB_PHY_PD_MASK; // Default pullup disabled.
AT91C_BASE_PIOB->PIO_SODR = PIOB_PHY_PD_MASK; // Output to high level.
#endif
/*
* PHY reset by pulsing the NRST pin.
*/
AT91C_BASE_RSTC->RSTC_RMR = 0xA5000100;
AT91C_BASE_RSTC->RSTC_RCR = 0xA5000000 | AT91C_RSTC_EXTRST;
while (!(AT91C_BASE_RSTC->RSTC_RSR & AT91C_RSTC_NRSTL))
;
}
/**
* @brief Reads a PHY register through the MII interface.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @return The register value.
*/
phyreg_t mii_lld_get(MACDriver *macp, phyaddr_t addr) {
AT91C_BASE_EMAC->EMAC_MAN = (0b01 << 30) | /* SOF */
(0b10 << 28) | /* RW */
(PHY_ADDRESS << 23) | /* PHYA */
(addr << 18) | /* REGA */
(0b10 << 16); /* CODE */
while (!( AT91C_BASE_EMAC->EMAC_NSR & AT91C_EMAC_IDLE))
;
return (phyreg_t)(AT91C_BASE_EMAC->EMAC_MAN & 0xFFFF);
}
/**
* @brief Writes a PHY register through the MII interface.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @param value the new register value
*/
void mii_lld_put(MACDriver *macp, phyaddr_t addr, phyreg_t value) {
AT91C_BASE_EMAC->EMAC_MAN = (0b01 << 30) | /* SOF */
(0b01 << 28) | /* RW */
(PHY_ADDRESS << 23) | /* PHYA */
(addr << 18) | /* REGA */
(0b10 << 16) | /* CODE */
value;
while (!( AT91C_BASE_EMAC->EMAC_NSR & AT91C_EMAC_IDLE))
;
}
/** @} */

91
os/io/platforms/AT91SAM7X/mii_lld.h Normal file
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@ -0,0 +1,91 @@
/*
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 AT91SAM7X/mii_lld.h
* @brief AT91SAM7X low level MII driver header
* @addtogroup AT91SAM7X_MII
* @{
*/
#ifndef _MII_LLD_H_
#define _MII_LLD_H_
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief PHY manufacturer and model.
*/
#if !defined(PHY_HARDWARE) || defined(__DOXYGEN__)
#define PHY_HARDWARE PHY_MICREL_KS8721
#endif
/*===========================================================================*/
/* PHY specific constants. */
/*===========================================================================*/
#define PHY_MICREL_KS8721 0
#if PHY_HARDWARE == PHY_MICREL_KS8721
#define PHY_ADDRESS 1
#endif
/**
* @brief Pins latched by the PHY at reset.
*/
#define PHY_LATCHED_PINS (AT91C_PB4_ECRS | AT91C_PB5_ERX0 | \
AT91C_PB6_ERX1 | AT91C_PB7_ERXER | \
AT91C_PB13_ERX2 | AT91C_PB14_ERX3 | \
AT91C_PB15_ERXDV_ECRSDV | AT91C_PB16_ECOL | \
AT91C_PIO_PB26)
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a PHY register value.
*/
typedef uint16_t phyreg_t;
/**
* @brief Type of a PHY register address.
*/
typedef uint8_t phyaddr_t;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void mii_lld_init(void);
void mii_lld_reset(MACDriver *macp);
phyreg_t mii_lld_get(MACDriver *macp, phyaddr_t addr);
void mii_lld_put(MACDriver *macp, phyaddr_t addr, phyreg_t value);
#ifdef __cplusplus
}
#endif
#endif /* _MII_LLD_H_ */
/** @} */

13
os/io/platforms/AT91SAM7X/platform.dox
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@ -66,8 +66,19 @@
*/ */
/** /**
* @defgroup AT91SAM7X_EMAC AT91SAM7X EMAC Support * @defgroup AT91SAM7X_MAC AT91SAM7X EMAC Support
* @brief EMAC peripheral support. * @brief EMAC peripheral support.
* @details the @ref MAC supports the AT91SAM7X EMAC peripheral.
*
* @ingroup AT91SAM7X
*/
/**
* @defgroup AT91SAM7X_MII AT91SAM7X MII Support
* @brief EMAC peripheral support.
* @details the @ref MII supports the AT91SAM7X EMAC peripheral communicating
* with an external PHY transceiver. The driver currently supports
* only the Micrel KS8721 PHY module.
* *
* @ingroup AT91SAM7X * @ingroup AT91SAM7X
*/ */

70
os/io/templates/mii_lld.c Normal file
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@ -0,0 +1,70 @@
/*
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/mii_lld.c
* @brief MII Driver subsystem low level driver source template
* @addtogroup MII_LLD
* @{
*/
#include <ch.h>
#include <mac.h>
#include <mii.h>
/**
* @brief Low level MII driver initialization.
*/
void mii_lld_init(void) {
}
/**
* Resets a PHY device.
*
* @param[in] macp pointer to the @p MACDriver object
*/
void mii_lld_reset(MACDriver *macp) {
}
/**
* @brief Reads a PHY register through the MII interface.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @return The register value.
*/
phyreg_t mii_lld_get(MACDriver *macp, phyaddr_t addr) {
return 0;
}
/**
* @brief Writes a PHY register through the MII interface.
*
* @param[in] macp pointer to the @p MACDriver object
* @param addr the register address
* @param value the new register value
*/
void mii_lld_put(MACDriver *macp, phyaddr_t addr, phyreg_t value) {
}
/** @} */

65
os/io/templates/mii_lld.h Normal file
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@ -0,0 +1,65 @@
/*
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/mii_lld.h
* @brief MII Driver subsystem low level driver header template
* @addtogroup MII_LLD
* @{
*/
#ifndef _MII_LLD_H_
#define _MII_LLD_H_
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Type of a PHY register value.
*/
typedef uint16_t phyreg_t;
/**
* @brief Type of a PHY register address.
*/
typedef uint8_t phyaddr_t;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void mii_lld_init(void);
void mii_lld_reset(MACDriver *macp);
phyreg_t mii_lld_get(MACDriver *macp, phyaddr_t addr);
void mii_lld_put(MACDriver *macp, phyaddr_t addr, phyreg_t value);
#ifdef __cplusplus
}
#endif
#endif /* _MII_LLD_H_ */
/** @} */