diff options
Diffstat (limited to 'drivers/net/tokenring/tms380tr.c')
| -rw-r--r-- | drivers/net/tokenring/tms380tr.c | 2306 |
1 files changed, 0 insertions, 2306 deletions
diff --git a/drivers/net/tokenring/tms380tr.c b/drivers/net/tokenring/tms380tr.c deleted file mode 100644 index b5e0855e4b39..000000000000 --- a/drivers/net/tokenring/tms380tr.c +++ /dev/null @@ -1,2306 +0,0 @@ -/* - * tms380tr.c: A network driver library for Texas Instruments TMS380-based - * Token Ring Adapters. - * - * Originally sktr.c: Written 1997 by Christoph Goos - * - * A fine result of the Linux Systems Network Architecture Project. - * http://www.vanheusden.com/sna/ - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - * The following modules are currently available for card support: - * - tmspci (Generic PCI card support) - * - abyss (Madge PCI support) - * - tmsisa (SysKonnect TR4/16 ISA) - * - * Sources: - * - The hardware related parts of this driver are take from - * the SysKonnect Token Ring driver for Windows NT. - * - I used the IBM Token Ring driver 'ibmtr.c' as a base for this - * driver, as well as the 'skeleton.c' driver by Donald Becker. - * - Also various other drivers in the linux source tree were taken - * as samples for some tasks. - * - TI TMS380 Second-Generation Token Ring User's Guide - * - TI datasheets for respective chips - * - David Hein at Texas Instruments - * - Various Madge employees - * - * Maintainer(s): - * JS Jay Schulist jschlst@samba.org - * CG Christoph Goos cgoos@syskonnect.de - * AF Adam Fritzler - * MLP Mike Phillips phillim@amtrak.com - * JF Jochen Friedrich jochen@scram.de - * - * Modification History: - * 29-Aug-97 CG Created - * 04-Apr-98 CG Fixed problems caused by tok_timer_check - * 10-Apr-98 CG Fixed lockups at cable disconnection - * 27-May-98 JS Formated to Linux Kernel Format - * 31-May-98 JS Hacked in PCI support - * 16-Jun-98 JS Modulized for multiple cards with one driver - * Sep-99 AF Renamed to tms380tr (supports more than SK's) - * 23-Sep-99 AF Added Compaq and Thomas-Conrad PCI support - * Fixed a bug causing double copies on PCI - * Fixed for new multicast stuff (2.2/2.3) - * 25-Sep-99 AF Uped TPL_NUM from 3 to 9 - * Removed extraneous 'No free TPL' - * 22-Dec-99 AF Added Madge PCI Mk2 support and generalized - * parts of the initilization procedure. - * 30-Dec-99 AF Turned tms380tr into a library ala 8390. - * Madge support is provided in the abyss module - * Generic PCI support is in the tmspci module. - * 30-Nov-00 JF Updated PCI code to support IO MMU via - * pci_map_static(). Alpha uses this MMU for ISA - * as well. - * 14-Jan-01 JF Fix DMA on ifdown/ifup sequences. Some - * cleanup. - * 13-Jan-02 JF Add spinlock to fix race condition. - * 09-Nov-02 JF Fixed printks to not SPAM the console during - * normal operation. - * 30-Dec-02 JF Removed incorrect __init from - * tms380tr_init_card. - * 22-Jul-05 JF Converted to dma-mapping. - * - * To do: - * 1. Multi/Broadcast packet handling (this may have fixed itself) - * 2. Write a sktrisa module that includes the old ISA support (done) - * 3. Allow modules to load their own microcode - * 4. Speed up the BUD process -- freezing the kernel for 3+sec is - * quite unacceptable. - * 5. Still a few remaining stalls when the cable is unplugged. - */ - -#ifdef MODULE -static const char version[] = "tms380tr.c: v1.10 30/12/2002 by Christoph Goos, Adam Fritzler\n"; -#endif - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/string.h> -#include <linux/time.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/dma-mapping.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/trdevice.h> -#include <linux/firmware.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/uaccess.h> - -#include "tms380tr.h" /* Our Stuff */ - -/* Use 0 for production, 1 for verification, 2 for debug, and - * 3 for very verbose debug. - */ -#ifndef TMS380TR_DEBUG -#define TMS380TR_DEBUG 0 -#endif -static unsigned int tms380tr_debug = TMS380TR_DEBUG; - -/* Index to functions, as function prototypes. - * Alphabetical by function name. - */ - -/* "A" */ -/* "B" */ -static int tms380tr_bringup_diags(struct net_device *dev); -/* "C" */ -static void tms380tr_cancel_tx_queue(struct net_local* tp); -static int tms380tr_chipset_init(struct net_device *dev); -static void tms380tr_chk_irq(struct net_device *dev); -static void tms380tr_chk_outstanding_cmds(struct net_device *dev); -static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr); -static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType); -int tms380tr_close(struct net_device *dev); -static void tms380tr_cmd_status_irq(struct net_device *dev); -/* "D" */ -static void tms380tr_disable_interrupts(struct net_device *dev); -#if TMS380TR_DEBUG > 0 -static void tms380tr_dump(unsigned char *Data, int length); -#endif -/* "E" */ -static void tms380tr_enable_interrupts(struct net_device *dev); -static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command); -static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue); -/* "F" */ -/* "G" */ -static struct net_device_stats *tms380tr_get_stats(struct net_device *dev); -/* "H" */ -static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb, - struct net_device *dev); -/* "I" */ -static int tms380tr_init_adapter(struct net_device *dev); -static void tms380tr_init_ipb(struct net_local *tp); -static void tms380tr_init_net_local(struct net_device *dev); -static void tms380tr_init_opb(struct net_device *dev); -/* "M" */ -/* "O" */ -int tms380tr_open(struct net_device *dev); -static void tms380tr_open_adapter(struct net_device *dev); -/* "P" */ -/* "R" */ -static void tms380tr_rcv_status_irq(struct net_device *dev); -static int tms380tr_read_ptr(struct net_device *dev); -static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data, - unsigned short Address, int Length); -static int tms380tr_reset_adapter(struct net_device *dev); -static void tms380tr_reset_interrupt(struct net_device *dev); -static void tms380tr_ring_status_irq(struct net_device *dev); -/* "S" */ -static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb, - struct net_device *dev); -static void tms380tr_set_multicast_list(struct net_device *dev); -static int tms380tr_set_mac_address(struct net_device *dev, void *addr); -/* "T" */ -static void tms380tr_timer_chk(unsigned long data); -static void tms380tr_timer_end_wait(unsigned long data); -static void tms380tr_tx_status_irq(struct net_device *dev); -/* "U" */ -static void tms380tr_update_rcv_stats(struct net_local *tp, - unsigned char DataPtr[], unsigned int Length); -/* "W" */ -void tms380tr_wait(unsigned long time); -static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status); -static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status); - -#define SIFREADB(reg) \ - (((struct net_local *)netdev_priv(dev))->sifreadb(dev, reg)) -#define SIFWRITEB(val, reg) \ - (((struct net_local *)netdev_priv(dev))->sifwriteb(dev, val, reg)) -#define SIFREADW(reg) \ - (((struct net_local *)netdev_priv(dev))->sifreadw(dev, reg)) -#define SIFWRITEW(val, reg) \ - (((struct net_local *)netdev_priv(dev))->sifwritew(dev, val, reg)) - - - -#if 0 /* TMS380TR_DEBUG > 0 */ -static int madgemc_sifprobe(struct net_device *dev) -{ - unsigned char old, chk1, chk2; - - old = SIFREADB(SIFADR); /* Get the old SIFADR value */ - - chk1 = 0; /* Begin with check value 0 */ - do { - madgemc_setregpage(dev, 0); - /* Write new SIFADR value */ - SIFWRITEB(chk1, SIFADR); - chk2 = SIFREADB(SIFADR); - if (chk2 != chk1) - return -1; - - madgemc_setregpage(dev, 1); - /* Read, invert and write */ - chk2 = SIFREADB(SIFADD); - if (chk2 != chk1) - return -1; - - madgemc_setregpage(dev, 0); - chk2 ^= 0x0FE; - SIFWRITEB(chk2, SIFADR); - - /* Read, invert and compare */ - madgemc_setregpage(dev, 1); - chk2 = SIFREADB(SIFADD); - madgemc_setregpage(dev, 0); - chk2 ^= 0x0FE; - - if(chk1 != chk2) - return -1; /* No adapter */ - chk1 -= 2; - } while(chk1 != 0); /* Repeat 128 times (all byte values) */ - - madgemc_setregpage(dev, 0); /* sanity */ - /* Restore the SIFADR value */ - SIFWRITEB(old, SIFADR); - - return 0; -} -#endif - -/* - * Open/initialize the board. This is called sometime after - * booting when the 'ifconfig' program is run. - * - * This routine should set everything up anew at each open, even - * registers that "should" only need to be set once at boot, so that - * there is non-reboot way to recover if something goes wrong. - */ -int tms380tr_open(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - int err; - - /* init the spinlock */ - spin_lock_init(&tp->lock); - init_timer(&tp->timer); - - /* Reset the hardware here. Don't forget to set the station address. */ - -#if defined(CONFIG_ISA) && defined(CONFIG_ISA_DMA_API) - if(dev->dma > 0) - { - unsigned long flags=claim_dma_lock(); - disable_dma(dev->dma); - set_dma_mode(dev->dma, DMA_MODE_CASCADE); - enable_dma(dev->dma); - release_dma_lock(flags); - } -#endif - - err = tms380tr_chipset_init(dev); - if(err) - { - printk(KERN_INFO "%s: Chipset initialization error\n", - dev->name); - return -1; - } - - tp->timer.expires = jiffies + 30*HZ; - tp->timer.function = tms380tr_timer_end_wait; - tp->timer.data = (unsigned long)dev; - add_timer(&tp->timer); - - printk(KERN_DEBUG "%s: Adapter RAM size: %dK\n", - dev->name, tms380tr_read_ptr(dev)); - - tms380tr_enable_interrupts(dev); - tms380tr_open_adapter(dev); - - netif_start_queue(dev); - - /* Wait for interrupt from hardware. If interrupt does not come, - * there will be a timeout from the timer. - */ - tp->Sleeping = 1; - interruptible_sleep_on(&tp->wait_for_tok_int); - del_timer(&tp->timer); - - /* If AdapterVirtOpenFlag is 1, the adapter is now open for use */ - if(tp->AdapterVirtOpenFlag == 0) - { - tms380tr_disable_interrupts(dev); - return -1; - } - - tp->StartTime = jiffies; - - /* Start function control timer */ - tp->timer.expires = jiffies + 2*HZ; - tp->timer.function = tms380tr_timer_chk; - tp->timer.data = (unsigned long)dev; - add_timer(&tp->timer); - - return 0; -} - -/* - * Timeout function while waiting for event - */ -static void tms380tr_timer_end_wait(unsigned long data) -{ - struct net_device *dev = (struct net_device*)data; - struct net_local *tp = netdev_priv(dev); - - if(tp->Sleeping) - { - tp->Sleeping = 0; - wake_up_interruptible(&tp->wait_for_tok_int); - } -} - -/* - * Initialize the chipset - */ -static int tms380tr_chipset_init(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - int err; - - tms380tr_init_ipb(tp); - tms380tr_init_opb(dev); - tms380tr_init_net_local(dev); - - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Resetting adapter...\n", dev->name); - err = tms380tr_reset_adapter(dev); - if(err < 0) - return -1; - - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Bringup diags...\n", dev->name); - err = tms380tr_bringup_diags(dev); - if(err < 0) - return -1; - - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Init adapter...\n", dev->name); - err = tms380tr_init_adapter(dev); - if(err < 0) - return -1; - - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Done!\n", dev->name); - return 0; -} - -/* - * Initializes the net_local structure. - */ -static void tms380tr_init_net_local(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - int i; - dma_addr_t dmabuf; - - tp->scb.CMD = 0; - tp->scb.Parm[0] = 0; - tp->scb.Parm[1] = 0; - - tp->ssb.STS = 0; - tp->ssb.Parm[0] = 0; - tp->ssb.Parm[1] = 0; - tp->ssb.Parm[2] = 0; - - tp->CMDqueue = 0; - - tp->AdapterOpenFlag = 0; - tp->AdapterVirtOpenFlag = 0; - tp->ScbInUse = 0; - tp->OpenCommandIssued = 0; - tp->ReOpenInProgress = 0; - tp->HaltInProgress = 0; - tp->TransmitHaltScheduled = 0; - tp->LobeWireFaultLogged = 0; - tp->LastOpenStatus = 0; - tp->MaxPacketSize = DEFAULT_PACKET_SIZE; - - /* Create circular chain of transmit lists */ - for (i = 0; i < TPL_NUM; i++) - { - tp->Tpl[i].NextTPLAddr = htonl(((char *)(&tp->Tpl[(i+1) % TPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */ - tp->Tpl[i].Status = 0; - tp->Tpl[i].FrameSize = 0; - tp->Tpl[i].FragList[0].DataCount = 0; - tp->Tpl[i].FragList[0].DataAddr = 0; - tp->Tpl[i].NextTPLPtr = &tp->Tpl[(i+1) % TPL_NUM]; - tp->Tpl[i].MData = NULL; - tp->Tpl[i].TPLIndex = i; - tp->Tpl[i].DMABuff = 0; - tp->Tpl[i].BusyFlag = 0; - } - - tp->TplFree = tp->TplBusy = &tp->Tpl[0]; - - /* Create circular chain of receive lists */ - for (i = 0; i < RPL_NUM; i++) - { - tp->Rpl[i].NextRPLAddr = htonl(((char *)(&tp->Rpl[(i+1) % RPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */ - tp->Rpl[i].Status = (RX_VALID | RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ); - tp->Rpl[i].FrameSize = 0; - tp->Rpl[i].FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize); - - /* Alloc skb and point adapter to data area */ - tp->Rpl[i].Skb = dev_alloc_skb(tp->MaxPacketSize); - tp->Rpl[i].DMABuff = 0; - - /* skb == NULL ? then use local buffer */ - if(tp->Rpl[i].Skb == NULL) - { - tp->Rpl[i].SkbStat = SKB_UNAVAILABLE; - tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer); - tp->Rpl[i].MData = tp->LocalRxBuffers[i]; - } - else /* SKB != NULL */ - { - tp->Rpl[i].Skb->dev = dev; - skb_put(tp->Rpl[i].Skb, tp->MaxPacketSize); - - /* data unreachable for DMA ? then use local buffer */ - dmabuf = dma_map_single(tp->pdev, tp->Rpl[i].Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE); - if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit)) - { - tp->Rpl[i].SkbStat = SKB_DATA_COPY; - tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer); - tp->Rpl[i].MData = tp->LocalRxBuffers[i]; - } - else /* DMA directly in skb->data */ - { - tp->Rpl[i].SkbStat = SKB_DMA_DIRECT; - tp->Rpl[i].FragList[0].DataAddr = htonl(dmabuf); - tp->Rpl[i].MData = tp->Rpl[i].Skb->data; - tp->Rpl[i].DMABuff = dmabuf; - } - } - - tp->Rpl[i].NextRPLPtr = &tp->Rpl[(i+1) % RPL_NUM]; - tp->Rpl[i].RPLIndex = i; - } - - tp->RplHead = &tp->Rpl[0]; - tp->RplTail = &tp->Rpl[RPL_NUM-1]; - tp->RplTail->Status = (RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ); -} - -/* - * Initializes the initialisation parameter block. - */ -static void tms380tr_init_ipb(struct net_local *tp) -{ - tp->ipb.Init_Options = BURST_MODE; - tp->ipb.CMD_Status_IV = 0; - tp->ipb.TX_IV = 0; - tp->ipb.RX_IV = 0; - tp->ipb.Ring_Status_IV = 0; - tp->ipb.SCB_Clear_IV = 0; - tp->ipb.Adapter_CHK_IV = 0; - tp->ipb.RX_Burst_Size = BURST_SIZE; - tp->ipb.TX_Burst_Size = BURST_SIZE; - tp->ipb.DMA_Abort_Thrhld = DMA_RETRIES; - tp->ipb.SCB_Addr = 0; - tp->ipb.SSB_Addr = 0; -} - -/* - * Initializes the open parameter block. - */ -static void tms380tr_init_opb(struct net_device *dev) -{ - struct net_local *tp; - unsigned long Addr; - unsigned short RplSize = RPL_SIZE; - unsigned short TplSize = TPL_SIZE; - unsigned short BufferSize = BUFFER_SIZE; - int i; - - tp = netdev_priv(dev); - - tp->ocpl.OPENOptions = 0; - tp->ocpl.OPENOptions |= ENABLE_FULL_DUPLEX_SELECTION; - tp->ocpl.FullDuplex = 0; - tp->ocpl.FullDuplex |= OPEN_FULL_DUPLEX_OFF; - - /* - * Set node address - * - * We go ahead and put it in the OPB even though on - * most of the generic adapters this isn't required. - * Its simpler this way. -- ASF - */ - for (i=0;i<6;i++) - tp->ocpl.NodeAddr[i] = ((unsigned char *)dev->dev_addr)[i]; - - tp->ocpl.GroupAddr = 0; - tp->ocpl.FunctAddr = 0; - tp->ocpl.RxListSize = cpu_to_be16((unsigned short)RplSize); - tp->ocpl.TxListSize = cpu_to_be16((unsigned short)TplSize); - tp->ocpl.BufSize = cpu_to_be16((unsigned short)BufferSize); - tp->ocpl.Reserved = 0; - tp->ocpl.TXBufMin = TX_BUF_MIN; - tp->ocpl.TXBufMax = TX_BUF_MAX; - - Addr = htonl(((char *)tp->ProductID - (char *)tp) + tp->dmabuffer); - - tp->ocpl.ProdIDAddr[0] = LOWORD(Addr); - tp->ocpl.ProdIDAddr[1] = HIWORD(Addr); -} - -/* - * Send OPEN command to adapter - */ -static void tms380tr_open_adapter(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - - if(tp->OpenCommandIssued) - return; - - tp->OpenCommandIssued = 1; - tms380tr_exec_cmd(dev, OC_OPEN); -} - -/* - * Clear the adapter's interrupt flag. Clear system interrupt enable - * (SINTEN): disable adapter to system interrupts. - */ -static void tms380tr_disable_interrupts(struct net_device *dev) -{ - SIFWRITEB(0, SIFACL); -} - -/* - * Set the adapter's interrupt flag. Set system interrupt enable - * (SINTEN): enable adapter to system interrupts. - */ -static void tms380tr_enable_interrupts(struct net_device *dev) -{ - SIFWRITEB(ACL_SINTEN, SIFACL); -} - -/* - * Put command in command queue, try to execute it. - */ -static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command) -{ - struct net_local *tp = netdev_priv(dev); - - tp->CMDqueue |= Command; - tms380tr_chk_outstanding_cmds(dev); -} - -static void tms380tr_timeout(struct net_device *dev) -{ - /* - * If we get here, some higher level has decided we are broken. - * There should really be a "kick me" function call instead. - * - * Resetting the token ring adapter takes a long time so just - * fake transmission time and go on trying. Our own timeout - * routine is in tms380tr_timer_chk() - */ - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_wake_queue(dev); -} - -/* - * Gets skb from system, queues it and checks if it can be sent - */ -static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb, - struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - netdev_tx_t rc; - - rc = tms380tr_hardware_send_packet(skb, dev); - if(tp->TplFree->NextTPLPtr->BusyFlag) - netif_stop_queue(dev); - return rc; -} - -/* - * Move frames into adapter tx queue - */ -static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb, - struct net_device *dev) -{ - TPL *tpl; - short length; - unsigned char *buf; - unsigned long flags; - int i; - dma_addr_t dmabuf, newbuf; - struct net_local *tp = netdev_priv(dev); - - /* Try to get a free TPL from the chain. - * - * NOTE: We *must* always leave one unused TPL in the chain, - * because otherwise the adapter might send frames twice. - */ - spin_lock_irqsave(&tp->lock, flags); - if(tp->TplFree->NextTPLPtr->BusyFlag) { /* No free TPL */ - if (tms380tr_debug > 0) - printk(KERN_DEBUG "%s: No free TPL\n", dev->name); - spin_unlock_irqrestore(&tp->lock, flags); - return NETDEV_TX_BUSY; - } - - dmabuf = 0; - - /* Is buffer reachable for Busmaster-DMA? */ - - length = skb->len; - dmabuf = dma_map_single(tp->pdev, skb->data, length, DMA_TO_DEVICE); - if(tp->dmalimit && (dmabuf + length > tp->dmalimit)) { - /* Copy frame to local buffer */ - dma_unmap_single(tp->pdev, dmabuf, length, DMA_TO_DEVICE); - dmabuf = 0; - i = tp->TplFree->TPLIndex; - buf = tp->LocalTxBuffers[i]; - skb_copy_from_linear_data(skb, buf, length); - newbuf = ((char *)buf - (char *)tp) + tp->dmabuffer; - } - else { - /* Send direct from skb->data */ - newbuf = dmabuf; - buf = skb->data; - } - /* Source address in packet? */ - tms380tr_chk_src_addr(buf, dev->dev_addr); - tp->LastSendTime = jiffies; - tpl = tp->TplFree; /* Get the "free" TPL */ - tpl->BusyFlag = 1; /* Mark TPL as busy */ - tp->TplFree = tpl->NextTPLPtr; - - /* Save the skb for delayed return of skb to system */ - tpl->Skb = skb; - tpl->DMABuff = dmabuf; - tpl->FragList[0].DataCount = cpu_to_be16((unsigned short)length); - tpl->FragList[0].DataAddr = htonl(newbuf); - - /* Write the data length in the transmit list. */ - tpl->FrameSize = cpu_to_be16((unsigned short)length); - tpl->MData = buf; - - /* Transmit the frame and set the status values. */ - tms380tr_write_tpl_status(tpl, TX_VALID | TX_START_FRAME - | TX_END_FRAME | TX_PASS_SRC_ADDR - | TX_FRAME_IRQ); - - /* Let adapter send the frame. */ - tms380tr_exec_sifcmd(dev, CMD_TX_VALID); - spin_unlock_irqrestore(&tp->lock, flags); - - return NETDEV_TX_OK; -} - -/* - * Write the given value to the 'Status' field of the specified TPL. - * NOTE: This function should be used whenever the status of any TPL must be - * modified by the driver, because the compiler may otherwise change the - * order of instructions such that writing the TPL status may be executed at - * an undesirable time. When this function is used, the status is always - * written when the function is called. - */ -static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status) -{ - tpl->Status = Status; -} - -static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr) -{ - unsigned char SRBit; - - if((((unsigned long)frame[8]) & ~0x80) != 0) /* Compare 4 bytes */ - return; - if((unsigned short)frame[12] != 0) /* Compare 2 bytes */ - return; - - SRBit = frame[8] & 0x80; - memcpy(&frame[8], hw_addr, 6); - frame[8] |= SRBit; -} - -/* - * The timer routine: Check if adapter still open and working, reopen if not. - */ -static void tms380tr_timer_chk(unsigned long data) -{ - struct net_device *dev = (struct net_device*)data; - struct net_local *tp = netdev_priv(dev); - - if(tp->HaltInProgress) - return; - - tms380tr_chk_outstanding_cmds(dev); - if(time_before(tp->LastSendTime + SEND_TIMEOUT, jiffies) && - (tp->TplFree != tp->TplBusy)) - { - /* Anything to send, but stalled too long */ - tp->LastSendTime = jiffies; - tms380tr_exec_cmd(dev, OC_CLOSE); /* Does reopen automatically */ - } - - tp->timer.expires = jiffies + 2*HZ; - add_timer(&tp->timer); - - if(tp->AdapterOpenFlag || tp->ReOpenInProgress) - return; - tp->ReOpenInProgress = 1; - tms380tr_open_adapter(dev); -} - -/* - * The typical workload of the driver: Handle the network interface interrupts. - */ -irqreturn_t tms380tr_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct net_local *tp; - unsigned short irq_type; - int handled = 0; - - tp = netdev_priv(dev); - - irq_type = SIFREADW(SIFSTS); - - while(irq_type & STS_SYSTEM_IRQ) { - handled = 1; - irq_type &= STS_IRQ_MASK; - - if(!tms380tr_chk_ssb(tp, irq_type)) { - printk(KERN_DEBUG "%s: DATA LATE occurred\n", dev->name); - break; - } - - switch(irq_type) { - case STS_IRQ_RECEIVE_STATUS: - tms380tr_reset_interrupt(dev); - tms380tr_rcv_status_irq(dev); - break; - - case STS_IRQ_TRANSMIT_STATUS: - /* Check if TRANSMIT.HALT command is complete */ - if(tp->ssb.Parm[0] & COMMAND_COMPLETE) { - tp->TransmitCommandActive = 0; - tp->TransmitHaltScheduled = 0; - - /* Issue a new transmit command. */ - tms380tr_exec_cmd(dev, OC_TRANSMIT); - } - - tms380tr_reset_interrupt(dev); - tms380tr_tx_status_irq(dev); - break; - - case STS_IRQ_COMMAND_STATUS: - /* The SSB contains status of last command - * other than receive/transmit. - */ - tms380tr_cmd_status_irq(dev); - break; - - case STS_IRQ_SCB_CLEAR: - /* The SCB is free for another command. */ - tp->ScbInUse = 0; - tms380tr_chk_outstanding_cmds(dev); - break; - - case STS_IRQ_RING_STATUS: - tms380tr_ring_status_irq(dev); - break; - - case STS_IRQ_ADAPTER_CHECK: - tms380tr_chk_irq(dev); - break; - - case STS_IRQ_LLC_STATUS: - printk(KERN_DEBUG "tms380tr: unexpected LLC status IRQ\n"); - break; - - case STS_IRQ_TIMER: - printk(KERN_DEBUG "tms380tr: unexpected Timer IRQ\n"); - break; - - case STS_IRQ_RECEIVE_PENDING: - printk(KERN_DEBUG "tms380tr: unexpected Receive Pending IRQ\n"); - break; - - default: - printk(KERN_DEBUG "Unknown Token Ring IRQ (0x%04x)\n", irq_type); - break; - } - - /* Reset system interrupt if not already done. */ - if(irq_type != STS_IRQ_TRANSMIT_STATUS && - irq_type != STS_IRQ_RECEIVE_STATUS) { - tms380tr_reset_interrupt(dev); - } - - irq_type = SIFREADW(SIFSTS); - } - - return IRQ_RETVAL(handled); -} - -/* - * Reset the INTERRUPT SYSTEM bit and issue SSB CLEAR command. - */ -static void tms380tr_reset_interrupt(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - SSB *ssb = &tp->ssb; - - /* - * [Workaround for "Data Late"] - * Set all fields of the SSB to well-defined values so we can - * check if the adapter has written the SSB. - */ - - ssb->STS = (unsigned short) -1; - ssb->Parm[0] = (unsigned short) -1; - ssb->Parm[1] = (unsigned short) -1; - ssb->Parm[2] = (unsigned short) -1; - - /* Free SSB by issuing SSB_CLEAR command after reading IRQ code - * and clear STS_SYSTEM_IRQ bit: enable adapter for further interrupts. - */ - tms380tr_exec_sifcmd(dev, CMD_SSB_CLEAR | CMD_CLEAR_SYSTEM_IRQ); -} - -/* - * Check if the SSB has actually been written by the adapter. - */ -static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType) -{ - SSB *ssb = &tp->ssb; /* The address of the SSB. */ - - /* C 0 1 2 INTERRUPT CODE - * - - - - -------------- - * 1 1 1 1 TRANSMIT STATUS - * 1 1 1 1 RECEIVE STATUS - * 1 ? ? 0 COMMAND STATUS - * 0 0 0 0 SCB CLEAR - * 1 1 0 0 RING STATUS - * 0 0 0 0 ADAPTER CHECK - * - * 0 = SSB field not affected by interrupt - * 1 = SSB field is affected by interrupt - * - * C = SSB ADDRESS +0: COMMAND - * 0 = SSB ADDRESS +2: STATUS 0 - * 1 = SSB ADDRESS +4: STATUS 1 - * 2 = SSB ADDRESS +6: STATUS 2 - */ - - /* Check if this interrupt does use the SSB. */ - - if(IrqType != STS_IRQ_TRANSMIT_STATUS && - IrqType != STS_IRQ_RECEIVE_STATUS && - IrqType != STS_IRQ_COMMAND_STATUS && - IrqType != STS_IRQ_RING_STATUS) - { - return 1; /* SSB not involved. */ - } - - /* Note: All fields of the SSB have been set to all ones (-1) after it - * has last been used by the software (see DriverIsr()). - * - * Check if the affected SSB fields are still unchanged. - */ - - if(ssb->STS == (unsigned short) -1) - return 0; /* Command field not yet available. */ - if(IrqType == STS_IRQ_COMMAND_STATUS) - return 1; /* Status fields not always affected. */ - if(ssb->Parm[0] == (unsigned short) -1) - return 0; /* Status 1 field not yet available. */ - if(IrqType == STS_IRQ_RING_STATUS) - return 1; /* Status 2 & 3 fields not affected. */ - - /* Note: At this point, the interrupt is either TRANSMIT or RECEIVE. */ - if(ssb->Parm[1] == (unsigned short) -1) - return 0; /* Status 2 field not yet available. */ - if(ssb->Parm[2] == (unsigned short) -1) - return 0; /* Status 3 field not yet available. */ - - return 1; /* All SSB fields have been written by the adapter. */ -} - -/* - * Evaluates the command results status in the SSB status field. - */ -static void tms380tr_cmd_status_irq(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned short ssb_cmd, ssb_parm_0; - unsigned short ssb_parm_1; - char *open_err = "Open error -"; - char *code_err = "Open code -"; - - /* Copy the ssb values to local variables */ - ssb_cmd = tp->ssb.STS; - ssb_parm_0 = tp->ssb.Parm[0]; - ssb_parm_1 = tp->ssb.Parm[1]; - - if(ssb_cmd == OPEN) - { - tp->Sleeping = 0; - if(!tp->ReOpenInProgress) - wake_up_interruptible(&tp->wait_for_tok_int); - - tp->OpenCommandIssued = 0; - tp->ScbInUse = 0; - - if((ssb_parm_0 & 0x00FF) == GOOD_COMPLETION) - { - /* Success, the adapter is open. */ - tp->LobeWireFaultLogged = 0; - tp->AdapterOpenFlag = 1; - tp->AdapterVirtOpenFlag = 1; - tp->TransmitCommandActive = 0; - tms380tr_exec_cmd(dev, OC_TRANSMIT); - tms380tr_exec_cmd(dev, OC_RECEIVE); - - if(tp->ReOpenInProgress) - tp->ReOpenInProgress = 0; - - return; - } - else /* The adapter did not open. */ - { - if(ssb_parm_0 & NODE_ADDR_ERROR) - printk(KERN_INFO "%s: Node address error\n", - dev->name); - if(ssb_parm_0 & LIST_SIZE_ERROR) - printk(KERN_INFO "%s: List size error\n", - dev->name); - if(ssb_parm_0 & BUF_SIZE_ERROR) - printk(KERN_INFO "%s: Buffer size error\n", - dev->name); - if(ssb_parm_0 & TX_BUF_COUNT_ERROR) - printk(KERN_INFO "%s: Tx buffer count error\n", - dev->name); - if(ssb_parm_0 & INVALID_OPEN_OPTION) - printk(KERN_INFO "%s: Invalid open option\n", - dev->name); - if(ssb_parm_0 & OPEN_ERROR) - { - /* Show the open phase. */ - switch(ssb_parm_0 & OPEN_PHASES_MASK) - { - case LOBE_MEDIA_TEST: - if(!tp->LobeWireFaultLogged) - { - tp->LobeWireFaultLogged = 1; - printk(KERN_INFO "%s: %s Lobe wire fault (check cable !).\n", dev->name, open_err); - } - tp->ReOpenInProgress = 1; - tp->AdapterOpenFlag = 0; - tp->AdapterVirtOpenFlag = 1; - tms380tr_open_adapter(dev); - return; - - case PHYSICAL_INSERTION: - printk(KERN_INFO "%s: %s Physical insertion.\n", dev->name, open_err); - break; - - case ADDRESS_VERIFICATION: - printk(KERN_INFO "%s: %s Address verification.\n", dev->name, open_err); - break; - - case PARTICIPATION_IN_RING_POLL: - printk(KERN_INFO "%s: %s Participation in ring poll.\n", dev->name, open_err); - break; - - case REQUEST_INITIALISATION: - printk(KERN_INFO "%s: %s Request initialisation.\n", dev->name, open_err); - break; - - case FULLDUPLEX_CHECK: - printk(KERN_INFO "%s: %s Full duplex check.\n", dev->name, open_err); - break; - - default: - printk(KERN_INFO "%s: %s Unknown open phase\n", dev->name, open_err); - break; - } - - /* Show the open errors. */ - switch(ssb_parm_0 & OPEN_ERROR_CODES_MASK) - { - case OPEN_FUNCTION_FAILURE: - printk(KERN_INFO "%s: %s OPEN_FUNCTION_FAILURE", dev->name, code_err); - tp->LastOpenStatus = - OPEN_FUNCTION_FAILURE; - break; - - case OPEN_SIGNAL_LOSS: - printk(KERN_INFO "%s: %s OPEN_SIGNAL_LOSS\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_SIGNAL_LOSS; - break; - - case OPEN_TIMEOUT: - printk(KERN_INFO "%s: %s OPEN_TIMEOUT\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_TIMEOUT; - break; - - case OPEN_RING_FAILURE: - printk(KERN_INFO "%s: %s OPEN_RING_FAILURE\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_RING_FAILURE; - break; - - case OPEN_RING_BEACONING: - printk(KERN_INFO "%s: %s OPEN_RING_BEACONING\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_RING_BEACONING; - break; - - case OPEN_DUPLICATE_NODEADDR: - printk(KERN_INFO "%s: %s OPEN_DUPLICATE_NODEADDR\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_DUPLICATE_NODEADDR; - break; - - case OPEN_REQUEST_INIT: - printk(KERN_INFO "%s: %s OPEN_REQUEST_INIT\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_REQUEST_INIT; - break; - - case OPEN_REMOVE_RECEIVED: - printk(KERN_INFO "%s: %s OPEN_REMOVE_RECEIVED", dev->name, code_err); - tp->LastOpenStatus = - OPEN_REMOVE_RECEIVED; - break; - - case OPEN_FULLDUPLEX_SET: - printk(KERN_INFO "%s: %s OPEN_FULLDUPLEX_SET\n", dev->name, code_err); - tp->LastOpenStatus = - OPEN_FULLDUPLEX_SET; - break; - - default: - printk(KERN_INFO "%s: %s Unknown open err code", dev->name, code_err); - tp->LastOpenStatus = - OPEN_FUNCTION_FAILURE; - break; - } - } - - tp->AdapterOpenFlag = 0; - tp->AdapterVirtOpenFlag = 0; - - return; - } - } - else - { - if(ssb_cmd != READ_ERROR_LOG) - return; - - /* Add values from the error log table to the MAC - * statistics counters and update the errorlogtable - * memory. - */ - tp->MacStat.line_errors += tp->errorlogtable.Line_Error; - tp->MacStat.burst_errors += tp->errorlogtable.Burst_Error; - tp->MacStat.A_C_errors += tp->errorlogtable.ARI_FCI_Error; - tp->MacStat.lost_frames += tp->errorlogtable.Lost_Frame_Error; - tp->MacStat.recv_congest_count += tp->errorlogtable.Rx_Congest_Error; - tp->MacStat.rx_errors += tp->errorlogtable.Rx_Congest_Error; - tp->MacStat.frame_copied_errors += tp->errorlogtable.Frame_Copied_Error; - tp->MacStat.token_errors += tp->errorlogtable.Token_Error; - tp->MacStat.dummy1 += tp->errorlogtable.DMA_Bus_Error; - tp->MacStat.dummy1 += tp->errorlogtable.DMA_Parity_Error; - tp->MacStat.abort_delimiters += tp->errorlogtable.AbortDelimeters; - tp->MacStat.frequency_errors += tp->errorlogtable.Frequency_Error; - tp->MacStat.internal_errors += tp->errorlogtable.Internal_Error; - } -} - -/* - * The inverse routine to tms380tr_open(). - */ -int tms380tr_close(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - netif_stop_queue(dev); - - del_timer(&tp->timer); - - /* Flush the Tx and disable Rx here. */ - - tp->HaltInProgress = 1; - tms380tr_exec_cmd(dev, OC_CLOSE); - tp->timer.expires = jiffies + 1*HZ; - tp->timer.function = tms380tr_timer_end_wait; - tp->timer.data = (unsigned long)dev; - add_timer(&tp->timer); - - tms380tr_enable_interrupts(dev); - - tp->Sleeping = 1; - interruptible_sleep_on(&tp->wait_for_tok_int); - tp->TransmitCommandActive = 0; - - del_timer(&tp->timer); - tms380tr_disable_interrupts(dev); - -#if defined(CONFIG_ISA) && defined(CONFIG_ISA_DMA_API) - if(dev->dma > 0) - { - unsigned long flags=claim_dma_lock(); - disable_dma(dev->dma); - release_dma_lock(flags); - } -#endif - - SIFWRITEW(0xFF00, SIFCMD); -#if 0 - if(dev->dma > 0) /* what the? */ - SIFWRITEB(0xff, POSREG); -#endif - tms380tr_cancel_tx_queue(tp); - - return 0; -} - -/* - * Get the current statistics. This may be called with the card open - * or closed. - */ -static struct net_device_stats *tms380tr_get_stats(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - - return (struct net_device_stats *)&tp->MacStat; -} - -/* - * Set or clear the multicast filter for this adapter. - */ -static void tms380tr_set_multicast_list(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned int OpenOptions; - - OpenOptions = tp->ocpl.OPENOptions & - ~(PASS_ADAPTER_MAC_FRAMES - | PASS_ATTENTION_FRAMES - | PASS_BEACON_MAC_FRAMES - | COPY_ALL_MAC_FRAMES - | COPY_ALL_NON_MAC_FRAMES); - - tp->ocpl.FunctAddr = 0; - - if(dev->flags & IFF_PROMISC) - /* Enable promiscuous mode */ - OpenOptions |= COPY_ALL_NON_MAC_FRAMES | - COPY_ALL_MAC_FRAMES; - else - { - if(dev->flags & IFF_ALLMULTI) - { - /* Disable promiscuous mode, use normal mode. */ - tp->ocpl.FunctAddr = 0xFFFFFFFF; - } - else - { - struct netdev_hw_addr *ha; - - netdev_for_each_mc_addr(ha, dev) { - ((char *)(&tp->ocpl.FunctAddr))[0] |= - ha->addr[2]; - ((char *)(&tp->ocpl.FunctAddr))[1] |= - ha->addr[3]; - ((char *)(&tp->ocpl.FunctAddr))[2] |= - ha->addr[4]; - ((char *)(&tp->ocpl.FunctAddr))[3] |= - ha->addr[5]; - } - } - tms380tr_exec_cmd(dev, OC_SET_FUNCT_ADDR); - } - - tp->ocpl.OPENOptions = OpenOptions; - tms380tr_exec_cmd(dev, OC_MODIFY_OPEN_PARMS); -} - -/* - * Wait for some time (microseconds) - */ -void tms380tr_wait(unsigned long time) -{ -#if 0 - long tmp; - - tmp = jiffies + time/(1000000/HZ); - do { - tmp = schedule_timeout_interruptible(tmp); - } while(time_after(tmp, jiffies)); -#else - mdelay(time / 1000); -#endif -} - -/* - * Write a command value to the SIFCMD register - */ -static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue) -{ - unsigned short cmd; - unsigned short SifStsValue; - unsigned long loop_counter; - - WriteValue = ((WriteValue ^ CMD_SYSTEM_IRQ) | CMD_INTERRUPT_ADAPTER); - cmd = (unsigned short)WriteValue; - loop_counter = 0,5 * 800000; - do { - SifStsValue = SIFREADW(SIFSTS); - } while((SifStsValue & CMD_INTERRUPT_ADAPTER) && loop_counter--); - SIFWRITEW(cmd, SIFCMD); -} - -/* - * Processes adapter hardware reset, halts adapter and downloads firmware, - * clears the halt bit. - */ -static int tms380tr_reset_adapter(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned short *fw_ptr; - unsigned short count, c, count2; - const struct firmware *fw_entry = NULL; - - if (request_firmware(&fw_entry, "tms380tr.bin", tp->pdev) != 0) { - printk(KERN_ALERT "%s: firmware %s is missing, cannot start.\n", - dev->name, "tms380tr.bin"); - return -1; - } - - fw_ptr = (unsigned short *)fw_entry->data; - count2 = fw_entry->size / 2; - - /* Hardware adapter reset */ - SIFWRITEW(ACL_ARESET, SIFACL); - tms380tr_wait(40); - - c = SIFREADW(SIFACL); - tms380tr_wait(20); - - if(dev->dma == 0) /* For PCI adapters */ - { - c &= ~(ACL_NSELOUT0 | ACL_NSELOUT1); /* Clear bits */ - if(tp->setnselout) - c |= (*tp->setnselout)(dev); - } - - /* In case a command is pending - forget it */ - tp->ScbInUse = 0; - - c &= ~ACL_ARESET; /* Clear adapter reset bit */ - c |= ACL_CPHALT; /* Halt adapter CPU, allow download */ - c |= ACL_BOOT; - c |= ACL_SINTEN; - c &= ~ACL_PSDMAEN; /* Clear pseudo dma bit */ - SIFWRITEW(c, SIFACL); - tms380tr_wait(40); - - count = 0; - /* Download firmware via DIO interface: */ - do { - if (count2 < 3) continue; - - /* Download first address part */ - SIFWRITEW(*fw_ptr, SIFADX); - fw_ptr++; - count2--; - /* Download second address part */ - SIFWRITEW(*fw_ptr, SIFADD); - fw_ptr++; - count2--; - - if((count = *fw_ptr) != 0) /* Load loop counter */ - { - fw_ptr++; /* Download block data */ - count2--; - if (count > count2) continue; - - for(; count > 0; count--) - { - SIFWRITEW(*fw_ptr, SIFINC); - fw_ptr++; - count2--; - } - } - else /* Stop, if last block downloaded */ - { - c = SIFREADW(SIFACL); - c &= (~ACL_CPHALT | ACL_SINTEN); - - /* Clear CPHALT and start BUD */ - SIFWRITEW(c, SIFACL); - release_firmware(fw_entry); - return 1; - } - } while(count == 0); - - release_firmware(fw_entry); - printk(KERN_INFO "%s: Adapter Download Failed\n", dev->name); - return -1; -} - -MODULE_FIRMWARE("tms380tr.bin"); - -/* - * Starts bring up diagnostics of token ring adapter and evaluates - * diagnostic results. - */ -static int tms380tr_bringup_diags(struct net_device *dev) -{ - int loop_cnt, retry_cnt; - unsigned short Status; - - tms380tr_wait(HALF_SECOND); - tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET); - tms380tr_wait(HALF_SECOND); - - retry_cnt = BUD_MAX_RETRIES; /* maximal number of retrys */ - - do { - retry_cnt--; - if(tms380tr_debug > 3) - printk(KERN_DEBUG "BUD-Status: "); - loop_cnt = BUD_MAX_LOOPCNT; /* maximum: three seconds*/ - do { /* Inspect BUD results */ - loop_cnt--; - tms380tr_wait(HALF_SECOND); - Status = SIFREADW(SIFSTS); - Status &= STS_MASK; - - if(tms380tr_debug > 3) - printk(KERN_DEBUG " %04X\n", Status); - /* BUD successfully completed */ - if(Status == STS_INITIALIZE) - return 1; - /* Unrecoverable hardware error, BUD not completed? */ - } while((loop_cnt > 0) && ((Status & (STS_ERROR | STS_TEST)) - != (STS_ERROR | STS_TEST))); - - /* Error preventing completion of BUD */ - if(retry_cnt > 0) - { - printk(KERN_INFO "%s: Adapter Software Reset.\n", - dev->name); - tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET); - tms380tr_wait(HALF_SECOND); - } - } while(retry_cnt > 0); - - Status = SIFREADW(SIFSTS); - - printk(KERN_INFO "%s: Hardware error\n", dev->name); - /* Hardware error occurred! */ - Status &= 0x001f; - if (Status & 0x0010) - printk(KERN_INFO "%s: BUD Error: Timeout\n", dev->name); - else if ((Status & 0x000f) > 6) - printk(KERN_INFO "%s: BUD Error: Illegal Failure\n", dev->name); - else - printk(KERN_INFO "%s: Bring Up Diagnostics Error (%04X) occurred\n", dev->name, Status & 0x000f); - - return -1; -} - -/* - * Copy initialisation data to adapter memory, beginning at address - * 1:0A00; Starting DMA test and evaluating result bits. - */ -static int tms380tr_init_adapter(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - - const unsigned char SCB_Test[6] = {0x00, 0x00, 0xC1, 0xE2, 0xD4, 0x8B}; - const unsigned char SSB_Test[8] = {0xFF, 0xFF, 0xD1, 0xD7, - 0xC5, 0xD9, 0xC3, 0xD4}; - void *ptr = (void *)&tp->ipb; - unsigned short *ipb_ptr = (unsigned short *)ptr; - unsigned char *cb_ptr = (unsigned char *) &tp->scb; - unsigned char *sb_ptr = (unsigned char *) &tp->ssb; - unsigned short Status; - int i, loop_cnt, retry_cnt; - - /* Normalize: byte order low/high, word order high/low! (only IPB!) */ - tp->ipb.SCB_Addr = SWAPW(((char *)&tp->scb - (char *)tp) + tp->dmabuffer); - tp->ipb.SSB_Addr = SWAPW(((char *)&tp->ssb - (char *)tp) + tp->dmabuffer); - - if(tms380tr_debug > 3) - { - printk(KERN_DEBUG "%s: buffer (real): %lx\n", dev->name, (long) &tp->scb); - printk(KERN_DEBUG "%s: buffer (virt): %lx\n", dev->name, (long) ((char *)&tp->scb - (char *)tp) + (long) tp->dmabuffer); - printk(KERN_DEBUG "%s: buffer (DMA) : %lx\n", dev->name, (long) tp->dmabuffer); - printk(KERN_DEBUG "%s: buffer (tp) : %lx\n", dev->name, (long) tp); - } - /* Maximum: three initialization retries */ - retry_cnt = INIT_MAX_RETRIES; - - do { - retry_cnt--; - - /* Transfer initialization block */ - SIFWRITEW(0x0001, SIFADX); - - /* To address 0001:0A00 of adapter RAM */ - SIFWRITEW(0x0A00, SIFADD); - - /* Write 11 words to adapter RAM */ - for(i = 0; i < 11; i++) - SIFWRITEW(ipb_ptr[i], SIFINC); - - /* Execute SCB adapter command */ - tms380tr_exec_sifcmd(dev, CMD_EXECUTE); - - loop_cnt = INIT_MAX_LOOPCNT; /* Maximum: 11 seconds */ - - /* While remaining retries, no error and not completed */ - do { - Status = 0; - loop_cnt--; - tms380tr_wait(HALF_SECOND); - - /* Mask interesting status bits */ - Status = SIFREADW(SIFSTS); - Status &= STS_MASK; - } while(((Status &(STS_INITIALIZE | STS_ERROR | STS_TEST)) != 0) && - ((Status & STS_ERROR) == 0) && (loop_cnt != 0)); - - if((Status & (STS_INITIALIZE | STS_ERROR | STS_TEST)) == 0) - { - /* Initialization completed without error */ - i = 0; - do { /* Test if contents of SCB is valid */ - if(SCB_Test[i] != *(cb_ptr + i)) - { - printk(KERN_INFO "%s: DMA failed\n", dev->name); - /* DMA data error: wrong data in SCB */ - return -1; - } - i++; - } while(i < 6); - - i = 0; - do { /* Test if contents of SSB is valid */ - if(SSB_Test[i] != *(sb_ptr + i)) - /* DMA data error: wrong data in SSB */ - return -1; - i++; - } while (i < 8); - - return 1; /* Adapter successfully initialized */ - } - else - { - if((Status & STS_ERROR) != 0) - { - /* Initialization error occurred */ - Status = SIFREADW(SIFSTS); - Status &= STS_ERROR_MASK; - /* ShowInitialisationErrorCode(Status); */ - printk(KERN_INFO "%s: Status error: %d\n", dev->name, Status); - return -1; /* Unrecoverable error */ - } - else - { - if(retry_cnt > 0) - { - /* Reset adapter and try init again */ - tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET); - tms380tr_wait(HALF_SECOND); - } - } - } - } while(retry_cnt > 0); - - printk(KERN_INFO "%s: Retry exceeded\n", dev->name); - return -1; -} - -/* - * Check for outstanding commands in command queue and tries to execute - * command immediately. Corresponding command flag in command queue is cleared. - */ -static void tms380tr_chk_outstanding_cmds(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned long Addr = 0; - - if(tp->CMDqueue == 0) - return; /* No command execution */ - - /* If SCB in use: no command */ - if(tp->ScbInUse == 1) - return; - - /* Check if adapter is opened, avoiding COMMAND_REJECT - * interrupt by the adapter! - */ - if (tp->AdapterOpenFlag == 0) { - if (tp->CMDqueue & OC_OPEN) { - /* Execute OPEN command */ - tp->CMDqueue ^= OC_OPEN; - - Addr = htonl(((char *)&tp->ocpl - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = OPEN; - } else - /* No OPEN command queued, but adapter closed. Note: - * We'll try to re-open the adapter in DriverPoll() - */ - return; /* No adapter command issued */ - } else { - /* Adapter is open; evaluate command queue: try to execute - * outstanding commands (depending on priority!) CLOSE - * command queued - */ - if (tp->CMDqueue & OC_CLOSE) { - tp->CMDqueue ^= OC_CLOSE; - tp->AdapterOpenFlag = 0; - tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */ - tp->scb.Parm[1] = 0; /* but should be set to zero! */ - tp->scb.CMD = CLOSE; - if(!tp->HaltInProgress) - tp->CMDqueue |= OC_OPEN; /* re-open adapter */ - else - tp->CMDqueue = 0; /* no more commands */ - } else if (tp->CMDqueue & OC_RECEIVE) { - tp->CMDqueue ^= OC_RECEIVE; - Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = RECEIVE; - } else if (tp->CMDqueue & OC_TRANSMIT_HALT) { - /* NOTE: TRANSMIT.HALT must be checked - * before TRANSMIT. - */ - tp->CMDqueue ^= OC_TRANSMIT_HALT; - tp->scb.CMD = TRANSMIT_HALT; - - /* Parm[0] and Parm[1] are ignored - * but should be set to zero! - */ - tp->scb.Parm[0] = 0; - tp->scb.Parm[1] = 0; - } else if (tp->CMDqueue & OC_TRANSMIT) { - /* NOTE: TRANSMIT must be - * checked after TRANSMIT.HALT - */ - if (tp->TransmitCommandActive) { - if (!tp->TransmitHaltScheduled) { - tp->TransmitHaltScheduled = 1; - tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT); - } - tp->TransmitCommandActive = 0; - return; - } - - tp->CMDqueue ^= OC_TRANSMIT; - tms380tr_cancel_tx_queue(tp); - Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = TRANSMIT; - tp->TransmitCommandActive = 1; - } else if (tp->CMDqueue & OC_MODIFY_OPEN_PARMS) { - tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS; - tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/ - tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION; - tp->scb.Parm[1] = 0; /* is ignored but should be zero */ - tp->scb.CMD = MODIFY_OPEN_PARMS; - } else if (tp->CMDqueue & OC_SET_FUNCT_ADDR) { - tp->CMDqueue ^= OC_SET_FUNCT_ADDR; - tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr); - tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr); - tp->scb.CMD = SET_FUNCT_ADDR; - } else if (tp->CMDqueue & OC_SET_GROUP_ADDR) { - tp->CMDqueue ^= OC_SET_GROUP_ADDR; - tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr); - tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr); - tp->scb.CMD = SET_GROUP_ADDR; - } else if (tp->CMDqueue & OC_READ_ERROR_LOG) { - tp->CMDqueue ^= OC_READ_ERROR_LOG; - Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer); - tp->scb.Parm[0] = LOWORD(Addr); - tp->scb.Parm[1] = HIWORD(Addr); - tp->scb.CMD = READ_ERROR_LOG; - } else { - printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n"); - tp->CMDqueue = 0; - return; - } - } - - tp->ScbInUse = 1; /* Set semaphore: SCB in use. */ - - /* Execute SCB and generate IRQ when done. */ - tms380tr_exec_sifcmd(dev, CMD_EXECUTE | CMD_SCB_REQUEST); -} - -/* - * IRQ conditions: signal loss on the ring, transmit or receive of beacon - * frames (disabled if bit 1 of OPEN option is set); report error MAC - * frame transmit (disabled if bit 2 of OPEN option is set); open or short - * circuit fault on the lobe is detected; remove MAC frame received; - * error counter overflow (255); opened adapter is the only station in ring. - * After some of the IRQs the adapter is closed! - */ -static void tms380tr_ring_status_irq(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - - tp->CurrentRingStatus = be16_to_cpu((unsigned short)tp->ssb.Parm[0]); - - /* First: fill up statistics */ - if(tp->ssb.Parm[0] & SIGNAL_LOSS) - { - printk(KERN_INFO "%s: Signal Loss\n", dev->name); - tp->MacStat.line_errors++; - } - - /* Adapter is closed, but initialized */ - if(tp->ssb.Parm[0] & LOBE_WIRE_FAULT) - { - printk(KERN_INFO "%s: Lobe Wire Fault, Reopen Adapter\n", - dev->name); - tp->MacStat.line_errors++; - } - - if(tp->ssb.Parm[0] & RING_RECOVERY) - printk(KERN_INFO "%s: Ring Recovery\n", dev->name); - - /* Counter overflow: read error log */ - if(tp->ssb.Parm[0] & COUNTER_OVERFLOW) - { - printk(KERN_INFO "%s: Counter Overflow\n", dev->name); - tms380tr_exec_cmd(dev, OC_READ_ERROR_LOG); - } - - /* Adapter is closed, but initialized */ - if(tp->ssb.Parm[0] & REMOVE_RECEIVED) - printk(KERN_INFO "%s: Remove Received, Reopen Adapter\n", - dev->name); - - /* Adapter is closed, but initialized */ - if(tp->ssb.Parm[0] & AUTO_REMOVAL_ERROR) - printk(KERN_INFO "%s: Auto Removal Error, Reopen Adapter\n", - dev->name); - - if(tp->ssb.Parm[0] & HARD_ERROR) - printk(KERN_INFO "%s: Hard Error\n", dev->name); - - if(tp->ssb.Parm[0] & SOFT_ERROR) - printk(KERN_INFO "%s: Soft Error\n", dev->name); - - if(tp->ssb.Parm[0] & TRANSMIT_BEACON) - printk(KERN_INFO "%s: Transmit Beacon\n", dev->name); - - if(tp->ssb.Parm[0] & SINGLE_STATION) - printk(KERN_INFO "%s: Single Station\n", dev->name); - - /* Check if adapter has been closed */ - if(tp->ssb.Parm[0] & ADAPTER_CLOSED) - { - printk(KERN_INFO "%s: Adapter closed (Reopening)," - "CurrentRingStat %x\n", - dev->name, tp->CurrentRingStatus); - tp->AdapterOpenFlag = 0; - tms380tr_open_adapter(dev); - } -} - -/* - * Issued if adapter has encountered an unrecoverable hardware - * or software error. - */ -static void tms380tr_chk_irq(struct net_device *dev) -{ - int i; - unsigned short AdapterCheckBlock[4]; - struct net_local *tp = netdev_priv(dev); - - tp->AdapterOpenFlag = 0; /* Adapter closed now */ - - /* Page number of adapter memory */ - SIFWRITEW(0x0001, SIFADX); - /* Address offset */ - SIFWRITEW(CHECKADDR, SIFADR); - - /* Reading 8 byte adapter check block. */ - for(i = 0; i < 4; i++) - AdapterCheckBlock[i] = SIFREADW(SIFINC); - - if(tms380tr_debug > 3) - { - printk(KERN_DEBUG "%s: AdapterCheckBlock: ", dev->name); - for (i = 0; i < 4; i++) - printk("%04X", AdapterCheckBlock[i]); - printk("\n"); - } - - switch(AdapterCheckBlock[0]) - { - case DIO_PARITY: - printk(KERN_INFO "%s: DIO parity error\n", dev->name); - break; - - case DMA_READ_ABORT: - printk(KERN_INFO "%s DMA read operation aborted:\n", - dev->name); - switch (AdapterCheckBlock[1]) - { - case 0: - printk(KERN_INFO "Timeout\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - case 1: - printk(KERN_INFO "Parity error\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - case 2: - printk(KERN_INFO "Bus error\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - default: - printk(KERN_INFO "Unknown error.\n"); - break; - } - break; - - case DMA_WRITE_ABORT: - printk(KERN_INFO "%s: DMA write operation aborted:\n", - dev->name); - switch (AdapterCheckBlock[1]) - { - case 0: - printk(KERN_INFO "Timeout\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - case 1: - printk(KERN_INFO "Parity error\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - case 2: - printk(KERN_INFO "Bus error\n"); - printk(KERN_INFO "Address: %04X %04X\n", - AdapterCheckBlock[2], - AdapterCheckBlock[3]); - break; - - default: - printk(KERN_INFO "Unknown error.\n"); - break; - } - break; - - case ILLEGAL_OP_CODE: - printk(KERN_INFO "%s: Illegal operation code in firmware\n", - dev->name); - /* Parm[0-3]: adapter internal register R13-R15 */ - break; - - case PARITY_ERRORS: - printk(KERN_INFO "%s: Adapter internal bus parity error\n", - dev->name); - /* Parm[0-3]: adapter internal register R13-R15 */ - break; - - case RAM_DATA_ERROR: - printk(KERN_INFO "%s: RAM data error\n", dev->name); - /* Parm[0-1]: MSW/LSW address of RAM location. */ - break; - - case RAM_PARITY_ERROR: - printk(KERN_INFO "%s: RAM parity error\n", dev->name); - /* Parm[0-1]: MSW/LSW address of RAM location. */ - break; - - case RING_UNDERRUN: - printk(KERN_INFO "%s: Internal DMA underrun detected\n", - dev->name); - break; - - case INVALID_IRQ: - printk(KERN_INFO "%s: Unrecognized interrupt detected\n", - dev->name); - /* Parm[0-3]: adapter internal register R13-R15 */ - break; - - case INVALID_ERROR_IRQ: - printk(KERN_INFO "%s: Unrecognized error interrupt detected\n", - dev->name); - /* Parm[0-3]: adapter internal register R13-R15 */ - break; - - case INVALID_XOP: - printk(KERN_INFO "%s: Unrecognized XOP request detected\n", - dev->name); - /* Parm[0-3]: adapter internal register R13-R15 */ - break; - - default: - printk(KERN_INFO "%s: Unknown status", dev->name); - break; - } - - if(tms380tr_chipset_init(dev) == 1) - { - /* Restart of firmware successful */ - tp->AdapterOpenFlag = 1; - } -} - -/* - * Internal adapter pointer to RAM data are copied from adapter into - * host system. - */ -static int tms380tr_read_ptr(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned short adapterram; - - tms380tr_read_ram(dev, (unsigned char *)&tp->intptrs.BurnedInAddrPtr, - ADAPTER_INT_PTRS, 16); - tms380tr_read_ram(dev, (unsigned char *)&adapterram, - cpu_to_be16((unsigned short)tp->intptrs.AdapterRAMPtr), 2); - return be16_to_cpu(adapterram); -} - -/* - * Reads a number of bytes from adapter to system memory. - */ -static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data, - unsigned short Address, int Length) -{ - int i; - unsigned short old_sifadx, old_sifadr, InWord; - - /* Save the current values */ - old_sifadx = SIFREADW(SIFADX); - old_sifadr = SIFREADW(SIFADR); - - /* Page number of adapter memory */ - SIFWRITEW(0x0001, SIFADX); - /* Address offset in adapter RAM */ - SIFWRITEW(Address, SIFADR); - - /* Copy len byte from adapter memory to system data area. */ - i = 0; - for(;;) - { - InWord = SIFREADW(SIFINC); - - *(Data + i) = HIBYTE(InWord); /* Write first byte */ - if(++i == Length) /* All is done break */ - break; - - *(Data + i) = LOBYTE(InWord); /* Write second byte */ - if (++i == Length) /* All is done break */ - break; - } - - /* Restore original values */ - SIFWRITEW(old_sifadx, SIFADX); - SIFWRITEW(old_sifadr, SIFADR); -} - -/* - * Cancel all queued packets in the transmission queue. - */ -static void tms380tr_cancel_tx_queue(struct net_local* tp) -{ - TPL *tpl; - - /* - * NOTE: There must not be an active TRANSMIT command pending, when - * this function is called. - */ - if(tp->TransmitCommandActive) - return; - - for(;;) - { - tpl = tp->TplBusy; - if(!tpl->BusyFlag) - break; - /* "Remove" TPL from busy list. */ - tp->TplBusy = tpl->NextTPLPtr; - tms380tr_write_tpl_status(tpl, 0); /* Clear VALID bit */ - tpl->BusyFlag = 0; /* "free" TPL */ - - printk(KERN_INFO "Cancel tx (%08lXh).\n", (unsigned long)tpl); - if (tpl->DMABuff) - dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE); - dev_kfree_skb_any(tpl->Skb); - } -} - -/* - * This function is called whenever a transmit interrupt is generated by the - * adapter. For a command complete interrupt, it is checked if we have to - * issue a new transmit command or not. - */ -static void tms380tr_tx_status_irq(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned char HighByte, HighAc, LowAc; - TPL *tpl; - - /* NOTE: At this point the SSB from TRANSMIT STATUS is no longer - * available, because the CLEAR SSB command has already been issued. - * - * Process all complete transmissions. - */ - - for(;;) - { - tpl = tp->TplBusy; - if(!tpl->BusyFlag || (tpl->Status - & (TX_VALID | TX_FRAME_COMPLETE)) - != TX_FRAME_COMPLETE) - { - break; - } - - /* "Remove" TPL from busy list. */ - tp->TplBusy = tpl->NextTPLPtr ; - - /* Check the transmit status field only for directed frames*/ - if(DIRECTED_FRAME(tpl) && (tpl->Status & TX_ERROR) == 0) - { - HighByte = GET_TRANSMIT_STATUS_HIGH_BYTE(tpl->Status); - HighAc = GET_FRAME_STATUS_HIGH_AC(HighByte); - LowAc = GET_FRAME_STATUS_LOW_AC(HighByte); - - if((HighAc != LowAc) || (HighAc == AC_NOT_RECOGNIZED)) - { - printk(KERN_DEBUG "%s: (DA=%08lX not recognized)\n", - dev->name, - *(unsigned long *)&tpl->MData[2+2]); - } - else - { - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Directed frame tx'd\n", - dev->name); - } - } - else - { - if(!DIRECTED_FRAME(tpl)) - { - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Broadcast frame tx'd\n", - dev->name); - } - } - - tp->MacStat.tx_packets++; - if (tpl->DMABuff) - dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE); - dev_kfree_skb_irq(tpl->Skb); - tpl->BusyFlag = 0; /* "free" TPL */ - } - - if(!tp->TplFree->NextTPLPtr->BusyFlag) - netif_wake_queue(dev); -} - -/* - * Called if a frame receive interrupt is generated by the adapter. - * Check if the frame is valid and indicate it to system. - */ -static void tms380tr_rcv_status_irq(struct net_device *dev) -{ - struct net_local *tp = netdev_priv(dev); - unsigned char *ReceiveDataPtr; - struct sk_buff *skb; - unsigned int Length, Length2; - RPL *rpl; - RPL *SaveHead; - dma_addr_t dmabuf; - - /* NOTE: At this point the SSB from RECEIVE STATUS is no longer - * available, because the CLEAR SSB command has already been issued. - * - * Process all complete receives. - */ - - for(;;) - { - rpl = tp->RplHead; - if(rpl->Status & RX_VALID) - break; /* RPL still in use by adapter */ - - /* Forward RPLHead pointer to next list. */ - SaveHead = tp->RplHead; - tp->RplHead = rpl->NextRPLPtr; - - /* Get the frame size (Byte swap for Intel). - * Do this early (see workaround comment below) - */ - Length = be16_to_cpu(rpl->FrameSize); - - /* Check if the Frame_Start, Frame_End and - * Frame_Complete bits are set. - */ - if((rpl->Status & VALID_SINGLE_BUFFER_FRAME) - == VALID_SINGLE_BUFFER_FRAME) - { - ReceiveDataPtr = rpl->MData; - - /* Workaround for delayed write of FrameSize on ISA - * (FrameSize is false but valid-bit is reset) - * Frame size is set to zero when the RPL is freed. - * Length2 is there because there have also been - * cases where the FrameSize was partially written - */ - Length2 = be16_to_cpu(rpl->FrameSize); - - if(Length == 0 || Length != Length2) - { - tp->RplHead = SaveHead; - break; /* Return to tms380tr_interrupt */ - } - tms380tr_update_rcv_stats(tp,ReceiveDataPtr,Length); - - if(tms380tr_debug > 3) - printk(KERN_DEBUG "%s: Packet Length %04X (%d)\n", - dev->name, Length, Length); - - /* Indicate the received frame to system the - * adapter does the Source-Routing padding for - * us. See: OpenOptions in tms380tr_init_opb() - */ - skb = rpl->Skb; - if(rpl->SkbStat == SKB_UNAVAILABLE) - { - /* Try again to allocate skb */ - skb = dev_alloc_skb(tp->MaxPacketSize); - if(skb == NULL) - { - /* Update Stats ?? */ - } - else - { - skb_put(skb, tp->MaxPacketSize); - rpl->SkbStat = SKB_DATA_COPY; - ReceiveDataPtr = rpl->MData; - } - } - - if(skb && (rpl->SkbStat == SKB_DATA_COPY || - rpl->SkbStat == SKB_DMA_DIRECT)) - { - if(rpl->SkbStat == SKB_DATA_COPY) - skb_copy_to_linear_data(skb, ReceiveDataPtr, - Length); - - /* Deliver frame to system */ - rpl->Skb = NULL; - skb_trim(skb,Length); - skb->protocol = tr_type_trans(skb,dev); - netif_rx(skb); - } - } - else /* Invalid frame */ - { - if(rpl->Skb != NULL) - dev_kfree_skb_irq(rpl->Skb); - - /* Skip list. */ - if(rpl->Status & RX_START_FRAME) - /* Frame start bit is set -> overflow. */ - tp->MacStat.rx_errors++; - } - if (rpl->DMABuff) - dma_unmap_single(tp->pdev, rpl->DMABuff, tp->MaxPacketSize, DMA_TO_DEVICE); - rpl->DMABuff = 0; - - /* Allocate new skb for rpl */ - rpl->Skb = dev_alloc_skb(tp->MaxPacketSize); - /* skb == NULL ? then use local buffer */ - if(rpl->Skb == NULL) - { - rpl->SkbStat = SKB_UNAVAILABLE; - rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer); - rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex]; - } - else /* skb != NULL */ - { - rpl->Skb->dev = dev; - skb_put(rpl->Skb, tp->MaxPacketSize); - - /* Data unreachable for DMA ? then use local buffer */ - dmabuf = dma_map_single(tp->pdev, rpl->Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE); - if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit)) - { - rpl->SkbStat = SKB_DATA_COPY; - rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer); - rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex]; - } - else - { - /* DMA directly in skb->data */ - rpl->SkbStat = SKB_DMA_DIRECT; - rpl->FragList[0].DataAddr = htonl(dmabuf); - rpl->MData = rpl->Skb->data; - rpl->DMABuff = dmabuf; - } - } - - rpl->FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize); - rpl->FrameSize = 0; - - /* Pass the last RPL back to the adapter */ - tp->RplTail->FrameSize = 0; - - /* Reset the CSTAT field in the list. */ - tms380tr_write_rpl_status(tp->RplTail, RX_VALID | RX_FRAME_IRQ); - - /* Current RPL becomes last one in list. */ - tp->RplTail = tp->RplTail->NextRPLPtr; - - /* Inform adapter about RPL valid. */ - tms380tr_exec_sifcmd(dev, CMD_RX_VALID); - } -} - -/* - * This function should be used whenever the status of any RPL must be - * modified by the driver, because the compiler may otherwise change the - * order of instructions such that writing the RPL status may be executed - * at an undesirable time. When this function is used, the status is - * always written when the function is called. - */ -static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status) -{ - rpl->Status = Status; -} - -/* - * The function updates the statistic counters in mac->MacStat. - * It differtiates between directed and broadcast/multicast ( ==functional) - * frames. - */ -static void tms380tr_update_rcv_stats(struct net_local *tp, unsigned char DataPtr[], - unsigned int Length) -{ - tp->MacStat.rx_packets++; - tp->MacStat.rx_bytes += Length; - - /* Test functional bit */ - if(DataPtr[2] & GROUP_BIT) - tp->MacStat.multicast++; -} - -static int tms380tr_set_mac_address(struct net_device *dev, void *addr) -{ - struct net_local *tp = netdev_priv(dev); - struct sockaddr *saddr = addr; - - if (tp->AdapterOpenFlag || tp->AdapterVirtOpenFlag) { - printk(KERN_WARNING "%s: Cannot set MAC/LAA address while card is open\n", dev->name); - return -EIO; - } - memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len); - return 0; -} - -#if TMS380TR_DEBUG > 0 -/* - * Dump Packet (data) - */ -static void tms380tr_dump(unsigned char *Data, int length) -{ - int i, j; - - for (i = 0, j = 0; i < length / 8; i++, j += 8) - { - printk(KERN_DEBUG "%02x %02x %02x %02x %02x %02x %02x %02x\n", - Data[j+0],Data[j+1],Data[j+2],Data[j+3], - Data[j+4],Data[j+5],Data[j+6],Data[j+7]); - } -} -#endif - -void tmsdev_term(struct net_device *dev) -{ - struct net_local *tp; - - tp = netdev_priv(dev); - dma_unmap_single(tp->pdev, tp->dmabuffer, sizeof(struct net_local), - DMA_BIDIRECTIONAL); -} - -const struct net_device_ops tms380tr_netdev_ops = { - .ndo_open = tms380tr_open, - .ndo_stop = tms380tr_close, - .ndo_start_xmit = tms380tr_send_packet, - .ndo_tx_timeout = tms380tr_timeout, - .ndo_get_stats = tms380tr_get_stats, - .ndo_set_rx_mode = tms380tr_set_multicast_list, - .ndo_set_mac_address = tms380tr_set_mac_address, -}; -EXPORT_SYMBOL(tms380tr_netdev_ops); - -int tmsdev_init(struct net_device *dev, struct device *pdev) -{ - struct net_local *tms_local; - - memset(netdev_priv(dev), 0, sizeof(struct net_local)); - tms_local = netdev_priv(dev); - init_waitqueue_head(&tms_local->wait_for_tok_int); - if (pdev->dma_mask) - tms_local->dmalimit = *pdev->dma_mask; - else - return -ENOMEM; - tms_local->pdev = pdev; - tms_local->dmabuffer = dma_map_single(pdev, (void *)tms_local, - sizeof(struct net_local), DMA_BIDIRECTIONAL); - if (tms_local->dmabuffer + sizeof(struct net_local) > - tms_local->dmalimit) - { - printk(KERN_INFO "%s: Memory not accessible for DMA\n", - dev->name); - tmsdev_term(dev); - return -ENOMEM; - } - - dev->netdev_ops = &tms380tr_netdev_ops; - dev->watchdog_timeo = HZ; - - return 0; -} - -EXPORT_SYMBOL(tms380tr_open); -EXPORT_SYMBOL(tms380tr_close); -EXPORT_SYMBOL(tms380tr_interrupt); -EXPORT_SYMBOL(tmsdev_init); -EXPORT_SYMBOL(tmsdev_term); -EXPORT_SYMBOL(tms380tr_wait); - -#ifdef MODULE - -static struct module *TMS380_module = NULL; - -int init_module(void) -{ - printk(KERN_DEBUG "%s", version); - - TMS380_module = &__this_module; - return 0; -} - -void cleanup_module(void) -{ - TMS380_module = NULL; -} -#endif - -MODULE_LICENSE("GPL"); - |