/**
Network Driver for Beckhoff CCAT communication controller
Copyright (C) 2014 Beckhoff Automation GmbH
Author: Patrick Bruenn <p.bruenn@beckhoff.com>
This program 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 2 of the License, or
(at your option) any later version.
This program 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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/kernel.h>
#include "CCatDefinitions.h"
#include "module.h"
#include "print.h"
#define TESTING_ENABLED 1
void print_mem(const unsigned char *p, size_t lines)
{
#if TESTING_ENABLED
pr_info("mem at: %p\n", p);
pr_info(" 0 1 2 3 4 5 6 7 8 9 A B C D E F\n");
while (lines > 0) {
pr_info
("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], p[9],
p[10], p[11], p[12], p[13], p[14], p[15]);
p += 16;
--lines;
}
#endif /* #if TESTING_ENABLED */
}
static const char *CCatFunctionTypes[CCATINFO_MAX + 1] = {
"not used",
"Informationblock",
"EtherCAT Slave",
"EtherCAT Master without DMA",
"Ethernet MAC without DMA",
"Ethernet Switch",
"Sercos III",
"Profibus",
"CAN Controller",
"KBUS Master",
"IP-Link Master (planned)",
"SPI Master",
"I²C",
"GPIO",
"Drive",
"CCAT Update",
"Systemtime",
"Interrupt Controller",
"EEPROM Controller",
"DMA Controller",
"EtherCAT Master with DMA",
"Ethernet MAC with DMA",
"SRAM Interface",
"Internal Copy block",
"unknown"
};
static void print_CCatDmaRxActBuf(const struct ccat_eth_priv *const priv)
{
CCatDmaRxActBuf rx_fifo;
memcpy_fromio(&rx_fifo, priv->reg.rx_fifo, sizeof(rx_fifo));
pr_debug("Rx FIFO base address: %p\n", priv->reg.rx_fifo);
pr_debug(" Rx Frame Header start: 0x%08x\n", rx_fifo.startAddr);
pr_debug(" reserved: 0x%08x\n", rx_fifo.reserved1);
pr_debug(" Rx start address valid: %8u\n", rx_fifo.nextValid);
pr_debug(" reserved: 0x%08x\n", rx_fifo.reserved2);
pr_debug(" FIFO level: 0x%08x\n", rx_fifo.FifoLevel);
pr_debug(" Buffer level: 0x%08x\n", rx_fifo.bufferLevel);
pr_debug(" next address: 0x%08x\n", rx_fifo.nextAddr);
}
static void print_CCatDmaTxFifo(const struct ccat_eth_priv *const priv)
{
CCatDmaTxFifo tx_fifo;
memcpy_fromio(&tx_fifo, priv->reg.tx_fifo, sizeof(tx_fifo));
pr_debug("Tx FIFO base address: %p\n", priv->reg.tx_fifo);
pr_debug(" Tx Frame Header start: 0x%08x\n", tx_fifo.startAddr);
pr_debug(" # 64 bit words: %10d\n", tx_fifo.numQuadWords);
pr_debug(" reserved: 0x%08x\n", tx_fifo.reserved1);
pr_debug(" FIFO reset: 0x%08x\n", tx_fifo.fifoReset);
}
static void print_CCatInfoBlock(const CCatInfoBlock * info,
const void __iomem * const base_addr)
{
const size_t index = min((int)info->eCCatInfoType, CCATINFO_MAX);
pr_debug("%s\n", CCatFunctionTypes[index]);
pr_debug(" revision: 0x%x\n", info->nRevision);
pr_debug(" RX channel: %d\n", info->rxDmaChn);
pr_debug(" TX channel: %d\n", info->txDmaChn);
pr_debug(" baseaddr: 0x%x\n", info->nAddr);
pr_debug(" size: 0x%x\n", info->nSize);
pr_debug(" subfunction: %p\n", base_addr);
}
static void print_CCatMacRegs(const struct ccat_eth_priv *const priv)
{
CCatMacRegs mac;
memcpy_fromio(&mac, priv->reg.mac, sizeof(mac));
pr_debug("MAC base address: %p\n", priv->reg.mac);
pr_debug(" frame length error count: %10d\n", mac.frameLenErrCnt);
pr_debug(" RX error count: %10d\n", mac.rxErrCnt);
pr_debug(" CRC error count: %10d\n", mac.crcErrCnt);
pr_debug(" Link lost error count: %10d\n", mac.linkLostErrCnt);
pr_debug(" reserved: 0x%08x\n", mac.reserved1);
pr_debug(" RX overflow count: %10d\n",
mac.dropFrameErrCnt);
pr_debug(" DMA overflow count: %10d\n", mac.reserved2[0]);
//pr_debug(" reserverd: %10d\n", DRV_NAME, mac.reserved2[1]);
pr_debug(" TX frame counter: %10d\n", mac.txFrameCnt);
pr_debug(" RX frame counter: %10d\n", mac.rxFrameCnt);
pr_debug(" TX-FIFO level: 0x%08x\n", mac.txFifoLevel);
pr_debug(" MII connection: 0x%08x\n", mac.miiConnected);
}
static void print_CCatMii(const struct ccat_eth_priv *const priv)
{
CCatMii mii;
memcpy_fromio(&mii, priv->reg.mii, sizeof(mii));
pr_debug("MII base address: %p\n", priv->reg.mii);
pr_debug(" MII cycle: %s\n",
mii.startMiCycle ? "running" : "no cycle");
pr_debug(" reserved: 0x%x\n", mii.reserved1);
pr_debug(" cmd valid: %s\n", mii.cmdErr ? "no" : "yes");
pr_debug(" cmd: 0x%x\n", mii.cmd);
pr_debug(" reserved: 0x%x\n", mii.reserved2);
pr_debug(" PHY addr: 0x%x\n", mii.phyAddr);
pr_debug(" reserved: 0x%x\n", mii.reserved3);
pr_debug(" PHY reg: 0x%x\n", mii.phyReg);
pr_debug(" reserved: 0x%x\n", mii.reserved4);
pr_debug(" PHY write: 0x%x\n", mii.phyWriteData);
pr_debug(" PHY read: 0x%x\n", mii.phyReadData);
pr_debug(" MAC addr: %02x:%02x:%02x:%02x:%02x:%02x\n",
mii.macAddr.b[0], mii.macAddr.b[1], mii.macAddr.b[2],
mii.macAddr.b[3], mii.macAddr.b[4], mii.macAddr.b[5]);
pr_debug(" MAC filter enable: %s\n",
mii.macFilterEnabled ? "enabled" : "disabled");
pr_debug(" reserved: 0x%x\n", mii.reserved6);
pr_debug(" Link State: %s\n",
mii.linkStatus ? "link" : "no link");
pr_debug(" reserved: 0x%x\n", mii.reserved7);
//pr_debug(" reserved: 0x%x\n", DRV_NAME, mii.reserved8);
//TODO add leds, systemtime insertion and interrupts
}
void ccat_print_function_info(struct ccat_eth_priv *priv)
{
print_CCatInfoBlock(&priv->info, priv->ccatdev->bar[0].ioaddr);
print_CCatMii(priv);
print_CCatDmaTxFifo(priv);
print_CCatDmaRxActBuf(priv);
print_CCatMacRegs(priv);
pr_debug(" RX window: %p\n", priv->reg.rx_mem);
pr_debug(" TX memory: %p\n", priv->reg.tx_mem);
pr_debug(" misc: %p\n", priv->reg.misc);
}
void print_update_info(const CCatInfoBlock * const info,
void __iomem * const ioaddr)
{
const size_t index = min((int)info->eCCatInfoType, CCATINFO_MAX);
pr_debug("%s\n", CCatFunctionTypes[index]);
pr_debug(" revision: 0x%x\n", info->nRevision);
pr_debug(" baseaddr: 0x%x\n", info->nAddr);
pr_debug(" size: 0x%x\n", info->nSize);
pr_debug(" PROM ID is: 0x%x\n", ccat_get_prom_id(ioaddr));
}