Date: Mon, 04 May 1998 16:18:37 +0200 From: Alain Malek To: linux68k Subject: L68K: apne (amiga pcmcia ne2000) driver for 2.1.99 Sender: owner-linux-m68k@phil.uni-sb.de This is a multi-part message in MIME format. --------------7EA543EE5273B33377A73105 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hi, Here is the 2.1.xx version of the apne driver. It's working fine, but I'm still not satisfied with it, as it includes a slightly modified version of the 8390 driver instead of using the existing 8390 driver. In fact, I have the IO problem which was discussed some times ago. The problems are: - even and odd io registers are accessed at different location (i.e. non-linear io mapping) - the 8390 driver must be shared at the source and object level (thus it would be possible to share the 8390 driver with several ne drivers compiled in the same kernel, each one using it's own io mapping) I will correct this driver, as soon as we find a good solution to the io problem. But at least we have a working driver for those ethernet boards. Alain --------------7EA543EE5273B33377A73105 Content-Type: application/x-gzip; name="apne.diff.gz" Content-Transfer-Encoding: x-uuencode Content-Disposition: inline; filename="apne.diff.gz" diff -ruN linux-2.1.99/arch/m68k/amiga/Makefile linux/arch/m68k/amiga/Makefile --- linux-2.1.99/arch/m68k/amiga/Makefile Mon Sep 15 13:11:23 1997 +++ linux/arch/m68k/amiga/Makefile Mon May 4 13:43:37 1998 @@ -11,4 +11,8 @@ O_OBJS := config.o amiints.o cia.o chipram.o amisound.o zorro.o OX_OBJS := amiga_ksyms.o +ifdef CONFIG_AMIGA_PCMCIA +O_OBJS := $(O_OBJS) pcmcia.o +endif + include $(TOPDIR)/Rules.make diff -ruN linux-2.1.99/arch/m68k/amiga/amiga_ksyms.c linux/arch/m68k/amiga/amiga_ksyms.c --- linux-2.1.99/arch/m68k/amiga/amiga_ksyms.c Thu Apr 9 11:49:36 1998 +++ linux/arch/m68k/amiga/amiga_ksyms.c Mon May 4 13:43:37 1998 @@ -3,6 +3,7 @@ #include #include #include +#include extern volatile u_short amiga_audio_min_period; extern u_short amiga_audio_period; @@ -26,3 +27,12 @@ EXPORT_SYMBOL(zorro_config_board); EXPORT_SYMBOL(zorro_unconfig_board); EXPORT_SYMBOL(zorro_unused_z2ram); + +#ifdef CONFIG_AMIGA_PCMCIA + EXPORT_SYMBOL(pcmcia_reset); + EXPORT_SYMBOL(pcmcia_copy_tuple); + EXPORT_SYMBOL(pcmcia_program_voltage); + EXPORT_SYMBOL(pcmcia_access_speed); + EXPORT_SYMBOL(pcmcia_write_enable); + EXPORT_SYMBOL(pcmcia_write_disable); +#endif diff -ruN linux-2.1.99/arch/m68k/amiga/amiints.c linux/arch/m68k/amiga/amiints.c --- linux-2.1.99/arch/m68k/amiga/amiints.c Sat Jan 24 20:09:30 1998 +++ linux/arch/m68k/amiga/amiints.c Mon May 4 13:43:37 1998 @@ -32,6 +32,7 @@ #include #include #include +#include extern int cia_request_irq(struct ciabase *base,int irq, void (*handler)(int, void *, struct pt_regs *), @@ -88,6 +89,10 @@ } for (i = 0; i < AMI_IRQS; i++) ami_ablecount[i] = 0; + + /* turn off PCMCIA interrupts */ + if (AMIGAHW_PRESENT(PCMCIA)) + pcmcia_disable_irq(); /* turn off all interrupts and enable the master interrupt bit */ custom.intena = 0x7fff; diff -ruN linux-2.1.99/arch/m68k/amiga/pcmcia.c linux/arch/m68k/amiga/pcmcia.c --- linux-2.1.99/arch/m68k/amiga/pcmcia.c Thu Jan 1 01:00:00 1970 +++ linux/arch/m68k/amiga/pcmcia.c Mon May 4 13:43:38 1998 @@ -0,0 +1,114 @@ + +/* +** asm-m68k/pcmcia.h -- Amiga Linux PCMCIA support +** most information was found by disassembling card.resource +** I'm still looking for an official doc ! +** +** Copyright 1997 by Alain Malek +** +** This file is subject to the terms and conditions of the GNU General Public +** License. See the file COPYING in the main directory of this archive +** for more details. +** +** Created: 12/10/97 by Alain Malek +*/ + +#include +#include +#include +#include +#include + +/* gayle config byte for program voltage and access speed */ +static u_char cfg_byte = GAYLE_CFG_0V|GAYLE_CFG_150NS; + +void pcmcia_reset(void) +{ + unsigned long reset_start_time = jiffies; + unsigned char b; + + gayle_reset = 0x00; + while (jiffies - reset_start_time < 1*HZ/100); + b = gayle_reset; +} + + +/* copy a tuple, including tuple header. return nb bytes copied */ +/* be carefull as this may trigger a GAYLE_IRQ_WR interrupt ! */ + +int pcmcia_copy_tuple(unsigned char tuple_id, void *tuple, int max_len) +{ + unsigned char id, *dest; + int cnt, pos, len; + + dest = tuple; + pos = 0; + + id = gayle_attribute[pos]; + + while((id != CISTPL_END) && (pos < 0x10000)) { + len = (int)gayle_attribute[pos+2] + 2; + if (id == tuple_id) { + len = (len > max_len)?max_len:len; + for (cnt = 0; cnt < len; cnt++) { + *dest++ = gayle_attribute[pos+(cnt<<1)]; + } + + return len; + } + pos += len<<1; + id = gayle_attribute[pos]; + } + + return 0; +} + +void pcmcia_program_voltage(int voltage) +{ + u_char v; + + switch (voltage) { + case PCMCIA_0V: + v = GAYLE_CFG_0V; + break; + case PCMCIA_5V: + v = GAYLE_CFG_5V; + break; + case PCMCIA_12V: + v = GAYLE_CFG_12V; + break; + default: + v = GAYLE_CFG_0V; + } + + cfg_byte = (cfg_byte & 0xfc) | v; + gayle.config = cfg_byte; + +} + +void pcmcia_access_speed(int speed) +{ + u_char s; + + if (speed <= PCMCIA_SPEED_100NS) + s = GAYLE_CFG_100NS; + else if (speed <= PCMCIA_SPEED_150NS) + s = GAYLE_CFG_150NS; + else if (speed <= PCMCIA_SPEED_250NS) + s = GAYLE_CFG_250NS; + else + s = GAYLE_CFG_720NS; + + cfg_byte = (cfg_byte & 0xf3) | s; + gayle.config = cfg_byte; +} + +void pcmcia_write_enable(void) +{ + gayle.cardstatus = GAYLE_CS_WR|GAYLE_CS_DA; +} + +void pcmcia_write_disable(void) +{ + gayle.cardstatus = 0; +} diff -ruN linux-2.1.99/arch/m68k/config.in linux/arch/m68k/config.in --- linux-2.1.99/arch/m68k/config.in Sun May 3 20:01:11 1998 +++ linux/arch/m68k/config.in Mon May 4 13:43:38 1998 @@ -78,6 +78,9 @@ # bool 'DMI Resolver support' CONFIG_GSP_RESOLVER # bool 'A2410 support' CONFIG_GSP_A2410 # fi + if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then + bool 'Amiga 1200 PCMCIA support' CONFIG_AMIGA_PCMCIA + fi fi if [ "$CONFIG_ATARI" = "y" ]; then bool 'Support for ST-RAM as swap space' CONFIG_STRAM_SWAP @@ -254,6 +257,9 @@ tristate 'Ariadne support' CONFIG_ARIADNE tristate 'A2065 support' CONFIG_A2065 tristate 'Hydra support' CONFIG_HYDRA + if [ "$CONFIG_AMIGA_PCMCIA" = "y" ]; then + tristate 'PCMCIA NE2000 support' CONFIG_APNE + fi fi if [ "$CONFIG_APOLLO" = "y" ] ; then tristate 'Apollo 3c505 support' CONFIG_APOLLO_ELPLUS diff -ruN linux-2.1.99/arch/m68k/defconfig linux/arch/m68k/defconfig --- linux-2.1.99/arch/m68k/defconfig Fri May 1 19:15:40 1998 +++ linux/arch/m68k/defconfig Mon May 4 13:45:30 1998 @@ -45,6 +45,7 @@ # CONFIG_AMIGA_GSP is not set # CONFIG_GSP_RESOLVER is not set # CONFIG_GSP_A2410 is not set +# CONFIG_AMIGA_PCMCIA is not set # CONFIG_HEARTBEAT is not set CONFIG_PROC_HARDWARE=y @@ -148,6 +149,7 @@ # CONFIG_ARIADNE is not set # CONFIG_A2065 is not set # CONFIG_HYDRA is not set +# CONFIG_APNE is not set # CONFIG_ATARILANCE is not set # CONFIG_ATARI_BIONET is not set # CONFIG_ATARI_PAMSNET is not set diff -ruN linux-2.1.99/arch/m68k/kernel/m68k_defs.h linux/arch/m68k/kernel/m68k_defs.h --- linux-2.1.99/arch/m68k/kernel/m68k_defs.h Thu Jan 1 01:00:00 1970 +++ linux/arch/m68k/kernel/m68k_defs.h Mon May 4 14:59:07 1998 @@ -0,0 +1,8 @@ +/* + * WARNING! This file is automatically generated - DO NOT EDIT! + */ + +#define TS_MAGICKEY 0x5a5a5a5a +#define TS_TSS 490 +#define TS_ESP0 510 +#define TS_FPU 514 diff -ruN linux-2.1.99/drivers/net/Makefile linux/drivers/net/Makefile --- linux-2.1.99/drivers/net/Makefile Thu Apr 9 11:50:18 1998 +++ linux/drivers/net/Makefile Mon May 4 13:43:38 1998 @@ -678,6 +678,14 @@ endif endif +ifeq ($(CONFIG_APNE),y) +L_OBJS += apne.o +else + ifeq ($(CONFIG_APNE),m) + M_OBJS += apne.o + endif +endif + ifeq ($(CONFIG_SDLA),y) L_OBJS += sdla.o else diff -ruN linux-2.1.99/drivers/net/Space.c linux/drivers/net/Space.c --- linux-2.1.99/drivers/net/Space.c Thu Apr 9 11:50:18 1998 +++ linux/drivers/net/Space.c Mon May 4 13:43:38 1998 @@ -89,6 +89,7 @@ extern int atarilance_probe(struct device *); extern int a2065_probe(struct device *); extern int ariadne_probe(struct device *); +extern int apne_probe(struct device *); extern int hydra_probe(struct device *); extern int tlan_probe(struct device *); extern int mace_probe(struct device *); @@ -257,6 +258,9 @@ #endif #ifdef CONFIG_ARIADNE /* Village Tronic Ariadne Ethernet Board */ && ariadne_probe(dev) +#endif +#ifdef CONFIG_APNE /* Amiga PCMCIA NE2000 Ethernet Board */ + && apne_probe(dev) #endif #ifdef CONFIG_HYDRA /* Hydra Systems Amiganet Ethernet board */ && hydra_probe(dev) diff -ruN linux-2.1.99/drivers/net/apne.c linux/drivers/net/apne.c --- linux-2.1.99/drivers/net/apne.c Thu Jan 1 01:00:00 1970 +++ linux/drivers/net/apne.c Mon May 4 14:21:33 1998 @@ -0,0 +1,1441 @@ +/* + * Amiga Linux/68k 8390 based PCMCIA Ethernet Driver for the Amiga 1200 + * + * (C) Copyright 1997 Alain Malek + * (Alain.Malek@cryogen.com) + * + * ---------------------------------------------------------------------------- + * + * This program is based on + * + * ne.c: A general non-shared-memory NS8390 ethernet driver for linux + * Written 1992-94 by Donald Becker. + * + * 8390.c: A general NS8390 ethernet driver core for linux. + * Written 1992-94 by Donald Becker. + * + * cnetdevice: A Sana-II ethernet driver for AmigaOS + * Written by Bruce Abbott (bhabbott@inhb.co.nz) + * + * ---------------------------------------------------------------------------- + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + * + * ---------------------------------------------------------------------------- + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include +#include "apne.h" + +int apne_probe(struct device *dev); +static int apne_probe1(struct device *dev, int ioaddr); + +static int apne_open(struct device *dev); +static int apne_close(struct device *dev); + +static void apne_reset_8390(struct device *dev); +static void apne_get_8390_hdr(struct device *dev, struct e8390_pkt_hdr *hdr, + int ring_page); +static void apne_block_input(struct device *dev, int count, + struct sk_buff *skb, int ring_offset); +static void apne_block_output(struct device *dev, const int count, + const unsigned char *buf, const int start_page); + + +static int ethdev_init(struct device *dev); + +#define ei_reset_8390 (ei_local->reset_8390) +#define ei_block_output (ei_local->block_output) +#define ei_block_input (ei_local->block_input) +#define ei_get_8390_hdr (ei_local->get_8390_hdr) + +static int ei_open(struct device *dev); +static int ei_close(struct device *dev); +static void ei_interrupt(int irq, void *dev_id, struct pt_regs *regs); + +static void ei_tx_intr(struct device *dev); +static void ei_tx_err(struct device *dev); +static void ei_receive(struct device *dev); +static void ei_rx_overrun(struct device *dev); + +static void NS8390_trigger_send(struct device *dev, unsigned int length, + int start_page); + +static void set_multicast_list(struct device *dev); + +static int init_pcmcia(void); + +/* use 0 for production, 1 for verification, >2 for debug */ +/*#define EI_DEBUG 4*/ + +#ifdef EI_DEBUG +int ei_debug = EI_DEBUG; +#else +int ei_debug = 1; +#endif + +/* IO base address used for nic */ + +#define IOBASE 0x300 + +/* + use MANUAL_CONFIG and MANUAL_OFFSET for enabling IO by hand + you can find the values to use by looking at the cnetdevice + config file example (the default values are for the CNET40BC card) +*/ + +/* +#define MANUAL_CONFIG 0x20 +#define MANUAL_OFFSET 0x3f8 + +#define MANUAL_HWADDR0 0x00 +#define MANUAL_HWADDR1 0x12 +#define MANUAL_HWADDR2 0x34 +#define MANUAL_HWADDR3 0x56 +#define MANUAL_HWADDR4 0x78 +#define MANUAL_HWADDR5 0x9a +*/ + +#define WORDSWAP(a) ( (((a)>>8)&0xff) | ((a)<<8) ) + +static const char *version = + "apne.c:v1.0 11/29/97 Alain Malek (Alain.Malek@cryogen.com)\n"; + +/*-*************************************************************************-*/ + +__initfunc(int apne_probe(struct device *dev)) +{ +#ifndef MANUAL_CONFIG + char tuple[8]; +#endif + + if ( !(AMIGAHW_PRESENT(PCMCIA)) ) + return (ENODEV); + + printk("Looking for PCMCIA ethernet card : "); + + /* check if a card is inserted */ + if (!(PCMCIA_INSERTED)) { + printk("NO PCMCIA card inserted\n"); + return (ENODEV); + } + + /* disable pcmcia irq for readtuple */ + pcmcia_disable_irq(); + +#ifndef MANUAL_CONFIG + if ((pcmcia_copy_tuple(CISTPL_FUNCID, tuple, 8) < 3) || + (tuple[2] != CISTPL_FUNCID_NETWORK)) { + printk("not an ethernet card\n"); + return (ENODEV); + } +#endif + + printk("ethernet PCMCIA card inserted\n"); + + if (init_pcmcia()) + return apne_probe1(dev, IOBASE); + else + return (ENODEV); + +} + +/*-*************************************************************************-*/ +static int apne_open(struct device *dev) +{ + ei_open(dev); + MOD_INC_USE_COUNT; + return 0; +} + +static int apne_close(struct device *dev) +{ + if (ei_debug > 1) + printk("%s: Shutting down ethercard.\n", dev->name); + ei_close(dev); + MOD_DEC_USE_COUNT; + return 0; +} +/*-*************************************************************************-*/ + +/* This page of functions should be 8390 generic */ +/* Follow National Semi's recommendations for initializing the "NIC". */ + +static void apNS8390_init(struct device *dev, int startp) +{ + int e8390_base = dev->base_addr; + struct ei_device *ei_local = (struct ei_device *) dev->priv; + int i; + int endcfg = ei_local->word16 ? (0x48 | ENDCFG_WTS) : 0x48; + unsigned long flags; + + /* Follow National Semi's recommendations for initing the DP83902. */ + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base); /* 0x21 */ + gayle_outb(endcfg, e8390_base + EN0_DCFG); /* 0x48 or 0x49 */ + /* Clear the remote byte count registers. */ + gayle_outb(0x00, e8390_base + EN0_RCNTLO); + gayle_outb(0x00, e8390_base + EN0_RCNTHI); + /* Set to monitor and loopback mode -- this is vital!. */ + gayle_outb(E8390_RXOFF, e8390_base + EN0_RXCR); /* 0x20 */ + gayle_outb(E8390_TXOFF, e8390_base + EN0_TXCR); /* 0x02 */ + /* Set the transmit page and receive ring. */ + gayle_outb(ei_local->tx_start_page, e8390_base + EN0_TPSR); + ei_local->tx1 = ei_local->tx2 = 0; + gayle_outb(ei_local->rx_start_page, e8390_base + EN0_STARTPG); + gayle_outb(ei_local->stop_page-1, e8390_base + EN0_BOUNDARY); /* 3c503 says 0x3f,NS0x26*/ + ei_local->current_page = ei_local->rx_start_page; /* assert boundary+1 */ + gayle_outb(ei_local->stop_page, e8390_base + EN0_STOPPG); + /* Clear the pending interrupts and mask. */ + gayle_outb(0xFF, e8390_base + EN0_ISR); + gayle_outb(0x00, e8390_base + EN0_IMR); + + /* Copy the station address into the DS8390 registers. */ + save_flags(flags); + cli(); + gayle_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, e8390_base); /* 0x61 */ + + { + unsigned long en1_phys[6] = {EN1_PHYS0, EN1_PHYS1, EN1_PHYS2, + EN1_PHYS3, EN1_PHYS4, EN1_PHYS5 }; + for(i = 0; i < 6; i++) { + gayle_outb(dev->dev_addr[i], e8390_base + en1_phys[i]); + } + } + + gayle_outb(ei_local->rx_start_page, e8390_base + EN1_CURPAG); + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base); + restore_flags(flags); + dev->tbusy = 0; + dev->interrupt = 0; + ei_local->tx1 = ei_local->tx2 = 0; + ei_local->txing = 0; + if (startp) { + gayle_outb(0xff, e8390_base + EN0_ISR); + gayle_outb(ENISR_ALL, e8390_base + EN0_IMR); + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base); + gayle_outb(E8390_TXCONFIG, e8390_base + EN0_TXCR); /* xmit on. */ + /* 3c503 TechMan says rxconfig only after the NIC is started. */ + gayle_outb(E8390_RXCONFIG, e8390_base + EN0_RXCR); /* rx on, */ + set_multicast_list(dev); /* (re)load the mcast table */ + } + return; +} + +/*-*************************************************************************-*/ + +__initfunc(static int apne_probe1(struct device *dev, int ioaddr)) +{ + int i; + unsigned char SA_prom[32]; + int wordlength = 2; + const char *name = NULL; + int start_page, stop_page; +#ifndef MANUAL_HWADDR0 + int neX000, ctron; +#endif + static unsigned version_printed = 0; + + /* We should have a "dev" from Space.c or the static module table. */ + if (dev == NULL) { + printk(KERN_ERR "apne.c: Passed a NULL device.\n"); + dev = init_etherdev(0, 0); + } + + if (ei_debug && version_printed++ == 0) + printk(version); + + printk("PCMCIA NE*000 ethercard probe"); + + /* Reset card. Who knows what dain-bramaged state it was left in. */ + { unsigned long reset_start_time = jiffies; + + gayle_outb(gayle_inb(ioaddr + NE_RESET), ioaddr + NE_RESET); + + while ((gayle_inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) + if (jiffies - reset_start_time > 2*HZ/100) { + printk(" not found (no reset ack).\n"); + return ENODEV; + } + + gayle_outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ + } + +#ifndef MANUAL_HWADDR0 + + /* Read the 16 bytes of station address PROM. + We must first initialize registers, similar to apNS8390_init(eifdev, 0). + We can't reliably read the SAPROM address without this. + (I learned the hard way!). */ + { + struct {unsigned long value, offset; } program_seq[] = { + {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ + {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */ + {0x00, EN0_RCNTLO}, /* Clear the count regs. */ + {0x00, EN0_RCNTHI}, + {0x00, EN0_IMR}, /* Mask completion irq. */ + {0xFF, EN0_ISR}, + {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ + {32, EN0_RCNTLO}, + {0x00, EN0_RCNTHI}, + {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ + {0x00, EN0_RSARHI}, + {E8390_RREAD+E8390_START, E8390_CMD}, + }; + for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) { + gayle_outb(program_seq[i].value, ioaddr + program_seq[i].offset); + } + + } + for(i = 0; i < 32 /*sizeof(SA_prom)*/; i+=2) { + SA_prom[i] = gayle_inb(ioaddr + NE_DATAPORT); + SA_prom[i+1] = gayle_inb(ioaddr + NE_DATAPORT); + if (SA_prom[i] != SA_prom[i+1]) + wordlength = 1; + } + + /* At this point, wordlength *only* tells us if the SA_prom is doubled + up or not because some broken PCI cards don't respect the byte-wide + request in program_seq above, and hence don't have doubled up values. + These broken cards would otherwise be detected as an ne1000. */ + + if (wordlength == 2) + for (i = 0; i < 16; i++) + SA_prom[i] = SA_prom[i+i]; + + if (wordlength == 2) { + /* We must set the 8390 for word mode. */ + gayle_outb(0x49, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + } else { + start_page = NE1SM_START_PG; + stop_page = NE1SM_STOP_PG; + } + + neX000 = (SA_prom[14] == 0x57 && SA_prom[15] == 0x57); + ctron = (SA_prom[0] == 0x00 && SA_prom[1] == 0x00 && SA_prom[2] == 0x1d); + + /* Set up the rest of the parameters. */ + if (neX000) { + name = (wordlength == 2) ? "NE2000" : "NE1000"; + } else if (ctron) { + name = (wordlength == 2) ? "Ctron-8" : "Ctron-16"; + start_page = 0x01; + stop_page = (wordlength == 2) ? 0x40 : 0x20; + } else { + printk(" not found.\n"); + return ENXIO; + + } + +#else + wordlength = 2; + /* We must set the 8390 for word mode. */ + gayle_outb(0x49, ioaddr + EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + SA_prom[0] = MANUAL_HWADDR0; + SA_prom[1] = MANUAL_HWADDR1; + SA_prom[2] = MANUAL_HWADDR2; + SA_prom[3] = MANUAL_HWADDR3; + SA_prom[4] = MANUAL_HWADDR4; + SA_prom[5] = MANUAL_HWADDR5; + name = "NE2000"; +#endif + + dev->base_addr = ioaddr; + + /* Install the Interrupt handler */ + if (request_irq(IRQ_AMIGA_PORTS, ei_interrupt, 0, "apne Ethernet", dev)) + return -EAGAIN; + + + /* Allocate dev->priv and fill in 8390 specific dev fields. */ + if (ethdev_init(dev)) { + printk (" unable to get memory for dev->priv.\n"); + return -ENOMEM; + } + + for(i = 0; i < ETHER_ADDR_LEN; i++) { + printk(" %2.2x", SA_prom[i]); + dev->dev_addr[i] = SA_prom[i]; + } + + printk("\n%s: %s found.\n", + dev->name, name); + + ei_status.name = name; + ei_status.tx_start_page = start_page; + ei_status.stop_page = stop_page; + ei_status.word16 = (wordlength == 2); + + ei_status.rx_start_page = start_page + TX_PAGES; + + ei_status.reset_8390 = &apne_reset_8390; + ei_status.block_input = &apne_block_input; + ei_status.block_output = &apne_block_output; + ei_status.get_8390_hdr = &apne_get_8390_hdr; + dev->open = &apne_open; + dev->stop = &apne_close; + apNS8390_init(dev, 0); + + pcmcia_ack_int(pcmcia_get_intreq()); /* ack PCMCIA int req */ + pcmcia_enable_irq(); + + return 0; +} + +/*-*************************************************************************-*/ + +/* Hard reset the card. This used to pause for the same period that a + 8390 reset command required, but that shouldn't be necessary. */ +static void +apne_reset_8390(struct device *dev) +{ + unsigned long reset_start_time = jiffies; + + init_pcmcia(); + + if (ei_debug > 1) printk("resetting the 8390 t=%ld...", jiffies); + + gayle_outb(gayle_inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((gayle_inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) + if (jiffies - reset_start_time > 2*HZ/100) { + printk("%s: ne_reset_8390() did not complete.\n", dev->name); + break; + } + gayle_outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ +} + +/*-*************************************************************************-*/ +/* Grab the 8390 specific header. Similar to the block_input routine, but + we don't need to be concerned with ring wrap as the header will be at + the start of a page, so we optimize accordingly. */ + +static void +apne_get_8390_hdr(struct device *dev, struct e8390_pkt_hdr *hdr, int ring_page) +{ + + int nic_base = dev->base_addr; + int cnt; + char *ptrc; + short *ptrs; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_get_8390_hdr " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + dev->interrupt); + return; + } + + ei_status.dmaing |= 0x01; + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); + gayle_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); + gayle_outb(0, nic_base + EN0_RCNTHI); + gayle_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ + gayle_outb(ring_page, nic_base + EN0_RSARHI); + gayle_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + + if (ei_status.word16) { + ptrs = (short*)hdr; + for(cnt = 0; cnt < (sizeof(struct e8390_pkt_hdr)>>1); cnt++) + *ptrs++ = gayle_inw(NE_BASE + NE_DATAPORT); + } else { + ptrc = (char*)hdr; + for(cnt = 0; cnt < sizeof(struct e8390_pkt_hdr); cnt++) + *ptrc++ = gayle_inb(NE_BASE + NE_DATAPORT); + } + + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + + hdr->count = WORDSWAP(hdr->count); + + ei_status.dmaing &= ~0x01; +} + +/*-*************************************************************************-*/ +/* Block input and output, similar to the Crynwr packet driver. If you + are porting to a new ethercard, look at the packet driver source for hints. + The NEx000 doesn't share the on-board packet memory -- you have to put + the packet out through the "remote DMA" dataport using outb. */ + +static void +apne_block_input(struct device *dev, int count, struct sk_buff *skb, int ring_offset) +{ + int nic_base = dev->base_addr; + char *buf = skb->data; + char *ptrc; + short *ptrs; + int cnt; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_input " + "[DMAstat:%d][irqlock:%d][intr:%d].\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + dev->interrupt); + return; + } + ei_status.dmaing |= 0x01; + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); + gayle_outb(count & 0xff, nic_base + EN0_RCNTLO); + gayle_outb(count >> 8, nic_base + EN0_RCNTHI); + gayle_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); + gayle_outb(ring_offset >> 8, nic_base + EN0_RSARHI); + gayle_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + ptrs = (short*)buf; + for (cnt = 0; cnt < (count>>1); cnt++) + *ptrs++ = gayle_inw(NE_BASE + NE_DATAPORT); + if (count & 0x01) { + buf[count-1] = gayle_inb(NE_BASE + NE_DATAPORT); + } + } else { + ptrc = (char*)buf; + for (cnt = 0; cnt < count; cnt++) + *ptrc++ = gayle_inb(NE_BASE + NE_DATAPORT); + } + + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; +} + +/*-*************************************************************************-*/ + +static void +apne_block_output(struct device *dev, int count, + const unsigned char *buf, const int start_page) +{ + int nic_base = NE_BASE; + unsigned long dma_start; + char *ptrc; + short *ptrs; + int cnt; + + /* Round the count up for word writes. Do we need to do this? + What effect will an odd byte count have on the 8390? + I should check someday. */ + if (ei_status.word16 && (count & 0x01)) + count++; + + /* This *shouldn't* happen. If it does, it's the last thing you'll see */ + if (ei_status.dmaing) { + printk("%s: DMAing conflict in ne_block_output." + "[DMAstat:%d][irqlock:%d][intr:%d]\n", + dev->name, ei_status.dmaing, ei_status.irqlock, + dev->interrupt); + return; + } + ei_status.dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + gayle_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); + + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); + + /* Now the normal output. */ + gayle_outb(count & 0xff, nic_base + EN0_RCNTLO); + gayle_outb(count >> 8, nic_base + EN0_RCNTHI); + gayle_outb(0x00, nic_base + EN0_RSARLO); + gayle_outb(start_page, nic_base + EN0_RSARHI); + + gayle_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); + if (ei_status.word16) { + ptrs = (short*)buf; + for (cnt = 0; cnt < count>>1; cnt++) + gayle_outw(*ptrs++, NE_BASE+NE_DATAPORT); + } else { + ptrc = (char*)buf; + for (cnt = 0; cnt < count; cnt++) + gayle_outb(*ptrc++, NE_BASE + NE_DATAPORT); + } + + dma_start = jiffies; + + while ((gayle_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) + if (jiffies - dma_start > 2*HZ/100) { /* 20ms */ + printk("%s: timeout waiting for Tx RDC.\n", dev->name); + apne_reset_8390(dev); + apNS8390_init(dev,1); + break; + } + + gayle_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ + ei_status.dmaing &= ~0x01; + return; +} + +/*-*************************************************************************-*/ +/* Open/initialize the board. This routine goes all-out, setting everything + up anew at each open, even though many of these registers should only + need to be set once at boot. + */ +static int ei_open(struct device *dev) +{ + struct ei_device *ei_local = (struct ei_device *) dev->priv; + + /* This can't happen unless somebody forgot to call ethdev_init(). */ + if (ei_local == NULL) { + printk(KERN_EMERG "%s: ei_open passed a non-existent device!\n", dev->name); + return -ENXIO; + } + + apNS8390_init(dev, 1); + dev->start = 1; + ei_local->irqlock = 0; + return 0; +} + +/* Opposite of above. Only used when "ifconfig down" is done. */ +static int ei_close(struct device *dev) +{ + apNS8390_init(dev, 0); + dev->start = 0; + return 0; +} + +/*-*************************************************************************-*/ + +static int ei_start_xmit(struct sk_buff *skb, struct device *dev) +{ + int e8390_base = dev->base_addr; + struct ei_device *ei_local = (struct ei_device *) dev->priv; + int length, send_length, output_page; + +/* + * We normally shouldn't be called if dev->tbusy is set, but the + * existing code does anyway. If it has been too long since the + * last Tx, we assume the board has died and kick it. + */ + + if (dev->tbusy) { /* Do timeouts, just like the 8003 driver. */ + int txsr = gayle_inb(e8390_base+EN0_TSR), isr; + int tickssofar = jiffies - dev->trans_start; + if (tickssofar < TX_TIMEOUT || (tickssofar < (TX_TIMEOUT+5) && ! (txsr & ENTSR_PTX))) { + return 1; + } + ei_local->stat.tx_errors++; + isr = gayle_inb(e8390_base+EN0_ISR); + if (dev->start == 0) { + printk("%s: xmit on stopped card\n", dev->name); + return 1; + } + + /* + * Note that if the Tx posted a TX_ERR interrupt, then the + * error will have been handled from the interrupt handler + * and not here. Error statistics are handled there as well. + */ + + printk(KERN_DEBUG "%s: Tx timed out, %s TSR=%#2x, ISR=%#2x, t=%d.\n", + dev->name, (txsr & ENTSR_ABT) ? "excess collisions." : + (isr) ? "lost interrupt?" : "cable problem?", txsr, isr, tickssofar); + + if (!isr && !ei_local->stat.tx_packets) { + /* The 8390 probably hasn't gotten on the cable yet. */ + ei_local->interface_num ^= 1; /* Try a different xcvr. */ + } + + /* Try to restart the card. Perhaps the user has fixed something. */ + ei_reset_8390(dev); + apNS8390_init(dev, 1); + dev->trans_start = jiffies; + } + + length = skb->len; + + /* Mask interrupts from the ethercard. */ + gayle_outb(0x00, e8390_base + EN0_IMR); + /* disable PCMCIA interrupt */ + pcmcia_disable_irq(); + synchronize_irq(); + + if (dev->interrupt) { + printk("%s: Tx request while isr active.\n",dev->name); + gayle_outb(ENISR_ALL, e8390_base + EN0_IMR); + pcmcia_enable_irq(); + ei_local->stat.tx_errors++; + dev_kfree_skb(skb); + return 0; + } + ei_local->irqlock = 1; + + send_length = ETH_ZLEN < length ? length : ETH_ZLEN; + +#ifdef EI_PINGPONG + + /* + * We have two Tx slots available for use. Find the first free + * slot, and then perform some sanity checks. With two Tx bufs, + * you get very close to transmitting back-to-back packets. With + * only one Tx buf, the transmitter sits idle while you reload the + * card, leaving a substantial gap between each transmitted packet. + */ + + if (ei_local->tx1 == 0) { + output_page = ei_local->tx_start_page; + ei_local->tx1 = send_length; + if (ei_debug && ei_local->tx2 > 0) + printk("%s: idle transmitter tx2=%d, lasttx=%d, txing=%d.\n", + dev->name, ei_local->tx2, ei_local->lasttx, ei_local->txing); + } else if (ei_local->tx2 == 0) { + output_page = ei_local->tx_start_page + TX_1X_PAGES; + ei_local->tx2 = send_length; + if (ei_debug && ei_local->tx1 > 0) + printk("%s: idle transmitter, tx1=%d, lasttx=%d, txing=%d.\n", + dev->name, ei_local->tx1, ei_local->lasttx, ei_local->txing); + } else { /* We should never get here. */ + if (ei_debug) + printk("%s: No Tx buffers free! irq=%d tx1=%d tx2=%d last=%d\n", + dev->name, dev->interrupt, ei_local->tx1, ei_local->tx2, ei_local->lasttx); + ei_local->irqlock = 0; + dev->tbusy = 1; + gayle_outb(ENISR_ALL, e8390_base + EN0_IMR); + /* enable PCMCIA IRQ interrupt */ + pcmcia_enable_irq(); + ei_local->stat.tx_errors++; + return 1; + } + + /* + * Okay, now upload the packet and trigger a send if the transmitter + * isn't already sending. If it is busy, the interrupt handler will + * trigger the send later, upon receiving a Tx done interrupt. + */ + + ei_block_output(dev, length, skb->data, output_page); + if (! ei_local->txing) { + ei_local->txing = 1; + NS8390_trigger_send(dev, send_length, output_page); + dev->trans_start = jiffies; + if (output_page == ei_local->tx_start_page) { + ei_local->tx1 = -1; + ei_local->lasttx = -1; + } else { + ei_local->tx2 = -1; + ei_local->lasttx = -2; + } + } else + ei_local->txqueue++; + + dev->tbusy = (ei_local->tx1 && ei_local->tx2); + +#else /* EI_PINGPONG */ + + /* + * Only one Tx buffer in use. You need two Tx bufs to come close to + * back-to-back transmits. Expect a 20 -> 25% performance hit on + * reasonable hardware if you only use one Tx buffer. + */ + + ei_block_output(dev, length, skb->data, ei_local->tx_start_page); + ei_local->txing = 1; + NS8390_trigger_send(dev, send_length, ei_local->tx_start_page); + dev->trans_start = jiffies; + dev->tbusy = 1; + +#endif /* EI_PINGPONG */ + + /* Turn 8390 interrupts back on. */ + ei_local->irqlock = 0; + gayle_outb(ENISR_ALL, e8390_base + EN0_IMR); + /* enable PCMCIA IRQ interrupt */ + pcmcia_enable_irq(); + + dev_kfree_skb (skb); + ei_local->stat.tx_bytes += send_length; + + return 0; +} + +/*-*************************************************************************-*/ + +static struct net_device_stats *get_stats(struct device *dev) +{ + int ioaddr = dev->base_addr; + struct ei_device *ei_local = (struct ei_device *) dev->priv; + + /* If the card is stopped, just return the present stats. */ + if (dev->start == 0) return &ei_local->stat; + + /* Read the counter registers, assuming we are in page 0. */ + ei_local->stat.rx_frame_errors += gayle_inb(ioaddr + EN0_COUNTER0); + ei_local->stat.rx_crc_errors += gayle_inb(ioaddr + EN0_COUNTER1); + ei_local->stat.rx_missed_errors+= gayle_inb(ioaddr + EN0_COUNTER2); + + return &ei_local->stat; +} + +/*-*************************************************************************-*/ +/* + * A transmitter error has happened. Most likely excess collisions (which + * is a fairly normal condition). If the error is one where the Tx will + * have been aborted, we try and send another one right away, instead of + * letting the failed packet sit and collect dust in the Tx buffer. This + * is a much better solution as it avoids kernel based Tx timeouts, and + * an unnecessary card reset. + */ + +static void ei_tx_err(struct device *dev) +{ + int e8390_base = dev->base_addr; + unsigned char txsr = gayle_inb(e8390_base+EN0_TSR); + unsigned char tx_was_aborted = txsr & (ENTSR_ABT+ENTSR_FU); + struct ei_device *ei_local = (struct ei_device *) dev->priv; + +#ifdef VERBOSE_ERROR_DUMP + printk(KERN_DEBUG "%s: transmitter error (%#2x): ", dev->name, txsr); + if (txsr & ENTSR_ABT) + printk("excess-collisions "); + if (txsr & ENTSR_ND) + printk("non-deferral "); + if (txsr & ENTSR_CRS) + printk("lost-carrier "); + if (txsr & ENTSR_FU) + printk("FIFO-underrun "); + if (txsr & ENTSR_CDH) + printk("lost-heartbeat "); + printk("\n"); +#endif + + gayle_outb(ENISR_TX_ERR, e8390_base + EN0_ISR); /* Ack intr. */ + + if (tx_was_aborted) + ei_tx_intr(dev); + + else { + ei_local->stat.tx_errors++; + if (txsr & ENTSR_CRS) ei_local->stat.tx_carrier_errors++; + if (txsr & ENTSR_CDH) ei_local->stat.tx_heartbeat_errors++; + if (txsr & ENTSR_OWC) ei_local->stat.tx_window_errors++; + } + +} + +/*-*************************************************************************-*/ +/* We have finished a transmit: check for errors and then trigger the next + packet to be sent. */ +static void ei_tx_intr(struct device *dev) +{ + int e8390_base = dev->base_addr; + int status = gayle_inb(e8390_base + EN0_TSR); + struct ei_device *ei_local = (struct ei_device *) dev->priv; + + gayle_outb(ENISR_TX, e8390_base + EN0_ISR); /* Ack intr. */ + +#ifdef EI_PINGPONG + + /* + * There are two Tx buffers, see which one finished, and trigger + * the send of another one if it exists. + */ + ei_local->txqueue--; + if (ei_local->tx1 < 0) { + if (ei_local->lasttx != 1 && ei_local->lasttx != -1) + printk("%s: bogus last_tx_buffer %d, tx1=%d.\n", + ei_local->name, ei_local->lasttx, ei_local->tx1); + ei_local->tx1 = 0; + dev->tbusy = 0; + if (ei_local->tx2 > 0) { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx2, ei_local->tx_start_page + 6); + dev->trans_start = jiffies; + ei_local->tx2 = -1, + ei_local->lasttx = 2; + } else + ei_local->lasttx = 20, ei_local->txing = 0; + } else if (ei_local->tx2 < 0) { + if (ei_local->lasttx != 2 && ei_local->lasttx != -2) + printk("%s: bogus last_tx_buffer %d, tx2=%d.\n", + ei_local->name, ei_local->lasttx, ei_local->tx2); + ei_local->tx2 = 0; + dev->tbusy = 0; + if (ei_local->tx1 > 0) { + ei_local->txing = 1; + NS8390_trigger_send(dev, ei_local->tx1, ei_local->tx_start_page); + dev->trans_start = jiffies; + ei_local->tx1 = -1; + ei_local->lasttx = 1; + } else + ei_local->lasttx = 10, ei_local->txing = 0; + } else + printk("%s: unexpected TX-done interrupt, lasttx=%d.\n", + dev->name, ei_local->lasttx); + +#else /* EI_PINGPONG */ + /* + * Single Tx buffer: mark it free so another packet can be loaded. + */ + ei_local->txing = 0; + dev->tbusy = 0; +#endif + + /* Minimize Tx latency: update the statistics after we restart TXing. */ + if (status & ENTSR_COL) + ei_local->stat.collisions++; + if (status & ENTSR_PTX) + ei_local->stat.tx_packets++; + else { + ei_local->stat.tx_errors++; + if (status & ENTSR_ABT) { + ei_local->stat.tx_aborted_errors++; + ei_local->stat.collisions += 16; + } + if (status & ENTSR_CRS) ei_local->stat.tx_carrier_errors++; + if (status & ENTSR_FU) ei_local->stat.tx_fifo_errors++; + if (status & ENTSR_CDH) ei_local->stat.tx_heartbeat_errors++; + if (status & ENTSR_OWC) ei_local->stat.tx_window_errors++; + } + + mark_bh (NET_BH); +} + +/*-*************************************************************************-*/ +/* We have a good packet(s), get it/them out of the buffers. */ + +static void ei_receive(struct device *dev) +{ + int e8390_base = dev->base_addr; + struct ei_device *ei_local = (struct ei_device *) dev->priv; + unsigned char rxing_page, this_frame, next_frame; + unsigned short current_offset; + int rx_pkt_count = 0; + struct e8390_pkt_hdr rx_frame; + int num_rx_pages = ei_local->stop_page-ei_local->rx_start_page; + + while (++rx_pkt_count < 10) { + int pkt_len, pkt_stat; + + /* Get the rx page (incoming packet pointer). */ + gayle_outb(E8390_NODMA+E8390_PAGE1, e8390_base + E8390_CMD); + rxing_page = gayle_inb(e8390_base + EN1_CURPAG); + gayle_outb(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD); + + /* Remove one frame from the ring. Boundary is always a page behind. */ + this_frame = gayle_inb(e8390_base + EN0_BOUNDARY) + 1; + if (this_frame >= ei_local->stop_page) + this_frame = ei_local->rx_start_page; + + /* Someday we'll omit the previous, iff we never get this message. + (There is at least one clone claimed to have a problem.) */ + if (ei_debug > 0 && this_frame != ei_local->current_page) + printk("%s: mismatched read page pointers %2x vs %2x.\n", + dev->name, this_frame, ei_local->current_page); + + if (this_frame == rxing_page) /* Read all the frames? */ + break; /* Done for now */ + + current_offset = this_frame << 8; + ei_get_8390_hdr(dev, &rx_frame, this_frame); + + pkt_len = rx_frame.count - sizeof(struct e8390_pkt_hdr); + pkt_stat = rx_frame.status; + + next_frame = this_frame + 1 + ((pkt_len+4)>>8); + + /* Check for bogosity warned by 3c503 book: the status byte is never + written. This happened a lot during testing! This code should be + cleaned up someday. */ + if (rx_frame.next != next_frame + && rx_frame.next != next_frame + 1 + && rx_frame.next != next_frame - num_rx_pages + && rx_frame.next != next_frame + 1 - num_rx_pages) { + ei_local->current_page = rxing_page; + gayle_outb(ei_local->current_page-1, e8390_base+EN0_BOUNDARY); + ei_local->stat.rx_errors++; + continue; + } + + if (pkt_len < 60 || pkt_len > 1518) { + if (ei_debug) + printk("%s: bogus packet size: %d, status=%#2x nxpg=%#2x.\n", + dev->name, rx_frame.count, rx_frame.status, + rx_frame.next); + ei_local->stat.rx_errors++; + ei_local->stat.rx_length_errors++; + } else if ((pkt_stat & 0x0F) == ENRSR_RXOK) { + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len+2); + if (skb == NULL) { + if (ei_debug > 1) + printk("%s: Couldn't allocate a sk_buff of size %d.\n", + dev->name, pkt_len); + ei_local->stat.rx_dropped++; + break; + } else { + skb_reserve(skb,2); /* IP headers on 16 byte boundaries */ + skb->dev = dev; + skb_put(skb, pkt_len); /* Make room */ + ei_block_input(dev, pkt_len, skb, current_offset + sizeof(rx_frame)); + skb->protocol=eth_type_trans(skb,dev); + netif_rx(skb); + ei_local->stat.rx_packets++; + ei_local->stat.rx_bytes += pkt_len; + if (pkt_stat & ENRSR_PHY) + ei_local->stat.multicast++; + } + } else { + if (ei_debug) + printk("%s: bogus packet: status=%#2x nxpg=%#2x size=%d\n", + dev->name, rx_frame.status, rx_frame.next, + rx_frame.count); + ei_local->stat.rx_errors++; + /* NB: The NIC counts CRC, frame and missed errors. */ + if (pkt_stat & ENRSR_FO) + ei_local->stat.rx_fifo_errors++; + } + next_frame = rx_frame.next; + + /* This _should_ never happen: it's here for avoiding bad clones. */ + if (next_frame >= ei_local->stop_page) { + printk("%s: next frame inconsistency, %#2x\n", dev->name, + next_frame); + next_frame = ei_local->rx_start_page; + } + ei_local->current_page = next_frame; + gayle_outb(next_frame-1, e8390_base+EN0_BOUNDARY); + } + + /* We used to also ack ENISR_OVER here, but that would sometimes mask + a real overrun, leaving the 8390 in a stopped state with rec'vr off. */ + gayle_outb(ENISR_RX+ENISR_RX_ERR, e8390_base+EN0_ISR); + return; +} + +/*-*************************************************************************-*/ +/* + * We have a receiver overrun: we have to kick the 8390 to get it started + * again. Problem is that you have to kick it exactly as NS prescribes in + * the updated datasheets, or "the NIC may act in an unpredictable manner." + * This includes causing "the NIC to defer indefinitely when it is stopped + * on a busy network." Ugh. + */ +static void ei_rx_overrun(struct device *dev) +{ + int e8390_base = dev->base_addr; + unsigned char was_txing, must_resend = 0; + struct ei_device *ei_local = (struct ei_device *) dev->priv; + + /* + * Record whether a Tx was in progress and then issue the + * stop command. + */ + was_txing = gayle_inb(e8390_base+E8390_CMD) & E8390_TRANS; + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_STOP, e8390_base+E8390_CMD); + + if (ei_debug > 1) + printk("%s: Receiver overrun.\n", dev->name); + ei_local->stat.rx_over_errors++; + + /* + * Wait a full Tx time (1.2ms) + some guard time, NS says 1.6ms total. + * Early datasheets said to poll the reset bit, but now they say that + * it "is not a reliable indicator and subsequently should be ignored." + * We wait at least 10ms. + */ + udelay(10*1000); + + /* + * Reset RBCR[01] back to zero as per magic incantation. + */ + gayle_outb(0x00, e8390_base+EN0_RCNTLO); + gayle_outb(0x00, e8390_base+EN0_RCNTHI); + + /* + * See if any Tx was interrupted or not. According to NS, this + * step is vital, and skipping it will cause no end of havoc. + */ + if (was_txing) { + unsigned char tx_completed = gayle_inb(e8390_base+EN0_ISR) & (ENISR_TX+ENISR_TX_ERR); + if (!tx_completed) must_resend = 1; + } + + /* + * Have to enter loopback mode and then restart the NIC before + * you are allowed to slurp packets up off the ring. + */ + gayle_outb(E8390_TXOFF, e8390_base + EN0_TXCR); + gayle_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, e8390_base + E8390_CMD); + + /* + * Clear the Rx ring of all the debris, and ack the interrupt. + */ + ei_receive(dev); + gayle_outb(ENISR_OVER, e8390_base+EN0_ISR); + + /* + * Leave loopback mode, and resend any packet that got stopped. + */ + gayle_outb(E8390_TXCONFIG, e8390_base + EN0_TXCR); + if (must_resend) + gayle_outb(E8390_NODMA + E8390_PAGE0 + E8390_START + E8390_TRANS, e8390_base + E8390_CMD); + +} + +/*-*************************************************************************-*/ +/* + * Update the given Autodin II CRC value with another data byte. + */ +static inline u32 update_crc(u8 byte, u32 current_crc) +{ + int bit; + u8 ah = 0; + + for (bit=0; bit<8; bit++) { + u8 carry = (current_crc>>31); + current_crc <<= 1; + ah = ((ah<<1) | carry) ^ byte; + if (ah&1) + current_crc ^= 0x04C11DB7; /* CRC polynomial */ + ah >>= 1; + byte >>= 1; + } + return current_crc; +} + +/*-*************************************************************************-*/ +/* + * Form the 64 bit 8390 multicast table from the linked list of addresses + * associated with this dev structure. + */ +static inline void make_mc_bits(u8 *bits, struct device *dev) +{ + struct dev_mc_list *dmi; + + for (dmi=dev->mc_list; dmi; dmi=dmi->next) { + int i; + u32 crc; + if (dmi->dmi_addrlen != ETH_ALEN) { + printk(KERN_INFO "%s: invalid multicast address length given.\n", dev->name); + continue; + } + crc = 0xffffffff; /* initial CRC value */ + for (i=0; idmi_addr[i], crc); + /* + * The 8390 uses the 6 most significant bits of the + * CRC to index the multicast table. + */ + bits[crc>>29] |= (1<<((crc>>26)&7)); + } +} + +/*-*************************************************************************-*/ +/* + * Set or clear the multicast filter for this adaptor. + */ + +static void set_multicast_list(struct device *dev) +{ + int ioaddr = dev->base_addr; + int i; + unsigned long flags; + struct ei_device *ei = (struct ei_device*)dev->priv; + + if (!(dev->flags&(IFF_PROMISC|IFF_ALLMULTI))) { + memset(ei->mcfilter, 0, 8); + if (dev->mc_list) + make_mc_bits(ei->mcfilter, dev); + } else + memset(ei->mcfilter, 0xFF, 8); /* mcast set to accept-all */ + + /* + * DP8390 manuals don't specify any magic sequence for altering + * the multicast regs on an already running card. To be safe, we + * ensure multicast mode is off prior to loading up the new hash + * table. If this proves to be not enough, we can always resort + * to stopping the NIC, loading the table and then restarting. + */ + if (dev->start) + gayle_outb(E8390_RXCONFIG, ioaddr + EN0_RXCR); + save_flags(flags); + cli(); + gayle_outb(E8390_NODMA + E8390_PAGE1, ioaddr + E8390_CMD); + for(i = 0; i < 8; i++) + gayle_outb(ei->mcfilter[i], ioaddr + EN1_MULT + i); + gayle_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); + restore_flags(flags); + + if(dev->flags&IFF_PROMISC) + gayle_outb(E8390_RXCONFIG | 0x18, ioaddr + EN0_RXCR); + else if(dev->flags&IFF_ALLMULTI || dev->mc_list) + gayle_outb(E8390_RXCONFIG | 0x08, ioaddr + EN0_RXCR); + else + gayle_outb(E8390_RXCONFIG, ioaddr + EN0_RXCR); +} + +/*-*************************************************************************-*/ + +/* Initialize the rest of the 8390 device structure. */ +__initfunc(int ethdev_init(struct device *dev)) +{ + if (ei_debug > 1) + printk(version); + + if (dev->priv == NULL) { + struct ei_device *ei_local; + + dev->priv = kmalloc(sizeof(struct ei_device), GFP_KERNEL); + if (dev->priv == NULL) + return -ENOMEM; + memset(dev->priv, 0, sizeof(struct ei_device)); + ei_local = (struct ei_device *)dev->priv; + } + + dev->hard_start_xmit = &ei_start_xmit; + dev->get_stats = get_stats; + dev->set_multicast_list = &set_multicast_list; + + ether_setup(dev); + + return 0; +} + +/*-*************************************************************************-*/ + +/* Trigger a transmit start, assuming the length is valid. */ +static void NS8390_trigger_send(struct device *dev, unsigned int length, + int start_page) +{ + int e8390_base = dev->base_addr; + + gayle_outb(E8390_NODMA+E8390_PAGE0, e8390_base); + + if (gayle_inb(e8390_base) & E8390_TRANS) { + printk("%s: trigger_send() called with the transmitter busy.\n", + dev->name); + return; + } + gayle_outb(length & 0xff, e8390_base + EN0_TCNTLO); + gayle_outb(length >> 8, e8390_base + EN0_TCNTHI); + gayle_outb(start_page, e8390_base + EN0_TPSR); + gayle_outb(E8390_NODMA+E8390_TRANS+E8390_START, e8390_base); + return; +} + +/*-*************************************************************************-*/ +/* The typical workload of the driver: + Handle the ether interface interrupts. */ + +static void ei_interrupt(int irq, void *dev_id, struct pt_regs * regs) +{ + struct device *dev; + int e8390_base; + int interrupts, nr_serviced = 0; + struct ei_device *ei_local; + unsigned char pcmcia_intreq; + + dev = (struct device *) dev_id; + + if (dev == NULL) { + printk ("net_interrupt(): irq %d for unknown device.\n", irq); + return; + } + + if (!(gayle.inten & GAYLE_IRQ_IRQ)) + return; + + pcmcia_intreq = pcmcia_get_intreq(); + + if (!(pcmcia_intreq & GAYLE_IRQ_IRQ)) { + pcmcia_ack_int(pcmcia_intreq); + return; + } + if (ei_debug > 3) + printk("pcmcia intreq = %x\n", pcmcia_intreq); + + e8390_base = dev->base_addr; + ei_local = (struct ei_device *) dev->priv; + if (dev->interrupt || ei_local->irqlock) { + /* The "irqlock" check is only for testing. */ + printk(ei_local->irqlock + ? "%s: Interrupted while interrupts are masked! isr=%#2x imr=%#2x.\n" + : "%s: Reentering the interrupt handler! isr=%#2x imr=%#2x.\n", + dev->name, gayle_inb(e8390_base + EN0_ISR), + gayle_inb(e8390_base + EN0_IMR)); + return; + } + + dev->interrupt = 1; + + /* Change to page 0 and read the intr status reg. */ + gayle_outb(E8390_NODMA+E8390_PAGE0, e8390_base + E8390_CMD); + if (ei_debug > 3) + printk("%s: interrupt(isr=%#2.2x).\n", dev->name, + gayle_inb(e8390_base + EN0_ISR)); + + /* !!Assumption!! -- we stay in page 0. Don't break this. */ + while ((interrupts = gayle_inb(e8390_base + EN0_ISR)) != 0 + && ++nr_serviced < MAX_SERVICE) { + if (dev->start == 0) { + printk("%s: interrupt from stopped card\n", dev->name); + /*interrupts = 0;*/ + break; + } + if (interrupts & ENISR_OVER) { + ei_rx_overrun(dev); + } else if (interrupts & (ENISR_RX+ENISR_RX_ERR)) { + /* Got a good (?) packet. */ + ei_receive(dev); + } + /* Push the next to-transmit packet through. */ + if (interrupts & ENISR_TX) { + ei_tx_intr(dev); + } else if (interrupts & ENISR_TX_ERR) { + ei_tx_err(dev); + } + + if (interrupts & ENISR_COUNTERS) { + ei_local->stat.rx_frame_errors += gayle_inb(e8390_base + EN0_COUNTER0); + ei_local->stat.rx_crc_errors += gayle_inb(e8390_base + EN0_COUNTER1); + ei_local->stat.rx_missed_errors+= gayle_inb(e8390_base + EN0_COUNTER2); + gayle_outb(ENISR_COUNTERS, e8390_base + EN0_ISR); /* Ack intr. */ + } + + /* Ignore any RDC interrupts that make it back to here. */ + if (interrupts & ENISR_RDC) { + gayle_outb(ENISR_RDC, e8390_base + EN0_ISR); + } + + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD); + + pcmcia_ack_int(pcmcia_get_intreq()); + } + + if (interrupts && ei_debug) { + gayle_outb(E8390_NODMA+E8390_PAGE0+E8390_START, e8390_base + E8390_CMD); + if (nr_serviced >= MAX_SERVICE) { + printk("%s: Too much work at interrupt, status %#2.2x\n", + dev->name, interrupts); + gayle_outb(ENISR_ALL, e8390_base + EN0_ISR); /* Ack. most intrs. */ + } else { + printk("%s: unknown interrupt %#2x\n", dev->name, interrupts); + gayle_outb(0xff, e8390_base + EN0_ISR); /* Ack. all intrs. */ + } + pcmcia_ack_int(pcmcia_get_intreq()); + } + dev->interrupt = 0; + return; +} + +/*-*************************************************************************-*/ + +#ifdef MODULE +static char devicename[9] = {0, }; + +static struct device apne_dev = +{ + devicename, + 0, 0, 0, 0, + 0, 0, + 0, 0, 0, NULL, apne_probe, +}; + +int init_module(void) +{ + int err; + if ((err = register_netdev(&apne_dev))) { + if (err == -EIO) + printk("No PCMCIA NEx000 ethernet card found.\n"); + return (err); + } + return (0); +} + +void cleanup_module(void) +{ + unregister_netdev(&apne_dev); + + pcmcia_disable_irq(); + + free_irq(IRQ_AMIGA_PORTS, &apne_dev); + + pcmcia_reset(); + +} + +#endif + +/*-*************************************************************************-*/ + +static int init_pcmcia(void) +{ + u_char config; +#ifndef MANUAL_CONFIG + u_char tuple[32]; + int offset_len; +#endif + u_long offset; + + pcmcia_reset(); + pcmcia_program_voltage(PCMCIA_0V); + pcmcia_access_speed(PCMCIA_SPEED_250NS); + pcmcia_write_enable(); + +#ifdef MANUAL_CONFIG + config = MANUAL_CONFIG; +#else + /* get and write config byte to enable IO port */ + + if (pcmcia_copy_tuple(CISTPL_CFTABLE_ENTRY, tuple, 32) < 3) + return 0; + + config = tuple[2] & 0x3f; +#endif +#ifdef MANUAL_OFFSET + offset = MANUAL_OFFSET; +#else + if (pcmcia_copy_tuple(CISTPL_CONFIG, tuple, 32) < 6) + return 0; + + offset_len = (tuple[2] & 0x3) + 1; + offset = 0; + while(offset_len--) { + offset = (offset << 8) | tuple[4+offset_len]; + } +#endif + + outb(config, GAYLE_ATTRIBUTE+offset); + + return 1; +} + +/*-*************************************************************************-*/ diff -ruN linux-2.1.99/drivers/net/apne.h linux/drivers/net/apne.h --- linux-2.1.99/drivers/net/apne.h Thu Jan 1 01:00:00 1970 +++ linux/drivers/net/apne.h Mon May 4 14:19:09 1998 @@ -0,0 +1,213 @@ + +/* + * Amiga Linux/68k 8390 based PCMCIA Ethernet Driver for the Amiga 1200 + * + * (C) Copyright 1997 Alain Malek + * (Alain.Malek@cryogen.com) + * + * ---------------------------------------------------------------------------- + * + * This program is based on + * + * ne.c: A general non-shared-memory NS8390 ethernet driver for linux + * Written 1992-94 by Donald Becker. + * + * 8390.c: A general NS8390 ethernet driver core for linux. + * Written 1992-94 by Donald Becker. + * + * cnetdevice: A Sana-II ethernet driver for AmigaOS + * Written by Bruce Abbott (bhabbott@inhb.co.nz) + * + * ---------------------------------------------------------------------------- + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + * + * ---------------------------------------------------------------------------- + * + */ + +#ifndef _apne_h +#define _apne_h + +#include +#include +#include + + +/* nex000 registers */ + +#define NE_BASE (dev->base_addr) +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ +#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ +#define NE_IO_EXTENT 0x20 + +#define NE1SM_START_PG 0x20 /* First page of TX buffer */ +#define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +/* 8390 registers */ + +/* Some generic ethernet register configurations. */ +#define E8390_TX_IRQ_MASK 0xa /* For register EN0_ISR */ +#define E8390_RX_IRQ_MASK 0x5 +#define E8390_RXCONFIG 0x4 /* EN0_RXCR: broadcasts, no multicast,errors */ +#define E8390_RXOFF 0x20 /* EN0_RXCR: Accept no packets */ +#define E8390_TXCONFIG 0x00 /* EN0_TXCR: Normal transmit mode */ +#define E8390_TXOFF 0x02 /* EN0_TXCR: Transmitter off */ + +/* Register accessed at EN_CMD, the 8390 base addr. */ +#define E8390_STOP 0x01 /* Stop and reset the chip */ +#define E8390_START 0x02 /* Start the chip, clear reset */ +#define E8390_TRANS 0x04 /* Transmit a frame */ +#define E8390_RREAD 0x08 /* Remote read */ +#define E8390_RWRITE 0x10 /* Remote write */ +#define E8390_NODMA 0x20 /* Remote DMA */ +#define E8390_PAGE0 0x00 /* Select page chip registers */ +#define E8390_PAGE1 0x40 /* using the two high-order bits */ +#define E8390_PAGE2 0x80 /* Page 3 is invalid. */ + +#define E8390_CMD 0x00 /* The command register (for all pages) */ +/* Page 0 register offsets. */ +#define EN0_CLDALO 0x01 /* Low byte of current local dma addr RD */ +#define EN0_STARTPG 0x01 /* Starting page of ring bfr WR */ +#define EN0_CLDAHI 0x02 /* High byte of current local dma addr RD */ +#define EN0_STOPPG 0x02 /* Ending page +1 of ring bfr WR */ +#define EN0_BOUNDARY 0x03 /* Boundary page of ring bfr RD WR */ +#define EN0_TSR 0x04 /* Transmit status reg RD */ +#define EN0_TPSR 0x04 /* Transmit starting page WR */ +#define EN0_NCR 0x05 /* Number of collision reg RD */ +#define EN0_TCNTLO 0x05 /* Low byte of tx byte count WR */ +#define EN0_FIFO 0x06 /* FIFO RD */ +#define EN0_TCNTHI 0x06 /* High byte of tx byte count WR */ +#define EN0_ISR 0x07 /* Interrupt status reg RD WR */ +#define EN0_CRDALO 0x08 /* low byte of current remote dma address RD */ +#define EN0_RSARLO 0x08 /* Remote start address reg 0 */ +#define EN0_CRDAHI 0x09 /* high byte, current remote dma address RD */ +#define EN0_RSARHI 0x09 /* Remote start address reg 1 */ +#define EN0_RCNTLO 0x0a /* Remote byte count reg WR */ +#define EN0_RCNTHI 0x0b /* Remote byte count reg WR */ +#define EN0_RSR 0x0c /* rx status reg RD */ +#define EN0_RXCR 0x0c /* RX configuration reg WR */ +#define EN0_TXCR 0x0d /* TX configuration reg WR */ +#define EN0_COUNTER0 0x0d /* Rcv alignment error counter RD */ +#define EN0_DCFG 0x0e /* Data configuration reg WR */ +#define EN0_COUNTER1 0x0e /* Rcv CRC error counter RD */ +#define EN0_IMR 0x0f /* Interrupt mask reg WR */ +#define EN0_COUNTER2 0x0f /* Rcv missed frame error counter RD */ + +/* Bits in EN0_ISR - Interrupt status register */ +#define ENISR_RX 0x01 /* Receiver, no error */ +#define ENISR_TX 0x02 /* Transmitter, no error */ +#define ENISR_RX_ERR 0x04 /* Receiver, with error */ +#define ENISR_TX_ERR 0x08 /* Transmitter, with error */ +#define ENISR_OVER 0x10 /* Receiver overwrote the ring */ +#define ENISR_COUNTERS 0x20 /* Counters need emptying */ +#define ENISR_RDC 0x40 /* remote dma complete */ +#define ENISR_RESET 0x80 /* Reset completed */ +#define ENISR_ALL 0x3f /* Interrupts we will enable */ + +/* Bits in EN0_DCFG - Data config register */ +#define ENDCFG_WTS 0x01 /* word transfer mode selection */ + +/* Page 1 register offsets. */ +#define EN1_PHYS0 0x01 /* This board's physical enet addr RD WR */ +#define EN1_PHYS1 0x02 /* This board's physical enet addr RD WR */ +#define EN1_PHYS2 0x03 /* This board's physical enet addr RD WR */ +#define EN1_PHYS3 0x04 /* This board's physical enet addr RD WR */ +#define EN1_PHYS4 0x05 /* This board's physical enet addr RD WR */ +#define EN1_PHYS5 0x06 /* This board's physical enet addr RD WR */ +#define EN1_CURPAG 0x07 /* Current memory page RD WR */ +#define EN1_MULT 0x08 /* Multicast filter mask array RD WR */ +#define EN1_MULT0 0x08 /* Multicast filter mask array RD WR */ +#define EN1_MULT1 0x09 /* Multicast filter mask array RD WR */ +#define EN1_MULT2 0x0a /* Multicast filter mask array RD WR */ +#define EN1_MULT3 0x0b /* Multicast filter mask array RD WR */ +#define EN1_MULT4 0x0c /* Multicast filter mask array RD WR */ +#define EN1_MULT5 0x0d /* Multicast filter mask array RD WR */ +#define EN1_MULT6 0x0e /* Multicast filter mask array RD WR */ +#define EN1_MULT7 0x0f /* Multicast filter mask array RD WR */ + +/* Bits in received packet status byte and EN0_RSR*/ +#define ENRSR_RXOK 0x01 /* Received a good packet */ +#define ENRSR_CRC 0x02 /* CRC error */ +#define ENRSR_FAE 0x04 /* frame alignment error */ +#define ENRSR_FO 0x08 /* FIFO overrun */ +#define ENRSR_MPA 0x10 /* missed pkt */ +#define ENRSR_PHY 0x20 /* physical/multicase address */ +#define ENRSR_DIS 0x40 /* receiver disable. set in monitor mode */ +#define ENRSR_DEF 0x80 /* deferring */ + +/* Transmitted packet status, EN0_TSR. */ +#define ENTSR_PTX 0x01 /* Packet transmitted without error */ +#define ENTSR_ND 0x02 /* The transmit wasn't deferred. */ +#define ENTSR_COL 0x04 /* The transmit collided at least once. */ +#define ENTSR_ABT 0x08 /* The transmit collided 16 times, and was deferred. */ +#define ENTSR_CRS 0x10 /* The carrier sense was lost. */ +#define ENTSR_FU 0x20 /* A "FIFO underrun" occurred during transmit. */ +#define ENTSR_CDH 0x40 /* The collision detect "heartbeat" signal was lost. */ +#define ENTSR_OWC 0x80 /* There was an out-of-window collision. */ + + +#define TX_2X_PAGES 12 +#define TX_1X_PAGES 6 + +/* Should always use two Tx slots to get back-to-back transmits. */ +#define EI_PINGPONG + +#ifdef EI_PINGPONG +#define TX_PAGES TX_2X_PAGES +#else +#define TX_PAGES TX_1X_PAGES +#endif + +#define ETHER_ADDR_LEN 6 + +/* The 8390 specific per-packet-header format. */ +struct e8390_pkt_hdr { + unsigned char status; /* status */ + unsigned char next; /* pointer to next packet. */ + unsigned short count; /* header + packet length in bytes */ +}; + +/* Most of these entries should be in 'struct device' (or most of the + things in there should be here!) */ +/* You have one of these per-board */ +struct ei_device { + const char *name; + void (*reset_8390)(struct device *); + void (*get_8390_hdr)(struct device *, struct e8390_pkt_hdr *, int); + void (*block_output)(struct device *, int, const unsigned char *, int); + void (*block_input)(struct device *, int, struct sk_buff *, int); + unsigned char mcfilter[8]; + unsigned open:1; + unsigned word16:1; /* We have the 16-bit (vs 8-bit) version of the card. */ + unsigned txing:1; /* Transmit Active */ + unsigned irqlock:1; /* 8390's intrs disabled when '1'. */ + unsigned dmaing:1; /* Remote DMA Active */ + unsigned char tx_start_page, rx_start_page, stop_page; + unsigned char current_page; /* Read pointer in buffer */ + unsigned char interface_num; /* Net port (AUI, 10bT.) to use. */ + unsigned char txqueue; /* Tx Packet buffer queue length. */ + short tx1, tx2; /* Packet lengths for ping-pong tx. */ + short lasttx; /* Alpha version consistency check. */ + unsigned char reg0; /* Register '0' in a WD8013 */ + unsigned char reg5; /* Register '5' in a WD8013 */ + unsigned char saved_irq; /* Original dev->irq value. */ + /* The new statistics table. */ + struct net_device_stats stat; +}; + +/* The maximum number of 8390 interrupt service routines called per IRQ. */ +#define MAX_SERVICE 12 + +/* The maximum time waited (in jiffies) before assuming a Tx failed. (20ms) */ +#define TX_TIMEOUT (20*HZ/100) + +#define ei_status (*(struct ei_device *)(dev->priv)) + + +#endif diff -ruN linux-2.1.99/include/asm-m68k/amigayle.h linux/include/asm-m68k/amigayle.h --- linux-2.1.99/include/asm-m68k/amigayle.h Thu Jan 1 01:00:00 1970 +++ linux/include/asm-m68k/amigayle.h Mon May 4 14:19:09 1998 @@ -0,0 +1,107 @@ + +/* +** asm-m68k/amigayle.h -- This header defines the registers of the gayle chip +** found on the Amiga 1200 +** This information was found by disassembling card.resource, +** so the definitions may not be 100% correct +** anyone has an official doc ? +** +** Copyright 1997 by Alain Malek +** +** This file is subject to the terms and conditions of the GNU General Public +** License. See the file COPYING in the main directory of this archive +** for more details. +** +** Created: 11/28/97 by Alain Malek +*/ + +#ifndef _ASMm68k_AMIGAYLE_H_ +#define _ASMm68k_AMIGAYLE_H_ + +#include +#include + +/* memory layout */ + +#define GAYLE_RAM (0x600000+zTwoBase) +#define GAYLE_RAMSIZE (0x400000) +#define GAYLE_ATTRIBUTE (0xa00000+zTwoBase) +#define GAYLE_ATTRIBUTESIZE (0x020000) +#define GAYLE_IO (0xa20000+zTwoBase) /* 16bit and even 8bit registers */ +#define GAYLE_IOSIZE (0x010000) +#define GAYLE_IO_8BITODD (0xa30000+zTwoBase) /* odd 8bit registers */ + +/* offset for accessing odd IO registers */ +#define GAYLE_ODD (GAYLE_IO_8BITODD-GAYLE_IO-1) + +/* GAYLE registers */ + +struct GAYLE { + u_char cardstatus; + u_char pad0[0x1000-1]; + + u_char intreq; + u_char pad1[0x1000-1]; + + u_char inten; + u_char pad2[0x1000-1]; + + u_char config; + u_char pad3[0x1000-1]; +}; + +#define GAYLE_ADDRESS (0xda8000) /* gayle main registers base address */ + +#define GAYLE_RESET (0xa40000) /* write 0x00 to start reset, + read 1 byte to stop reset */ + +#define gayle (*(volatile struct GAYLE *)(zTwoBase+GAYLE_ADDRESS)) +#define gayle_reset (*(volatile u_char *)(zTwoBase+GAYLE_RESET)) + +#define gayle_attribute ((volatile u_char *)(GAYLE_ATTRIBUTE)) + +#define gayle_inb(a) readb( GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) +#define gayle_outb(v,a) writeb( v, GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) ) + +#define gayle_inw(a) readw( GAYLE_IO+(a) ) +#define gayle_outw(v,a) writew( v, GAYLE_IO+(a) ) + +/* GAYLE_CARDSTATUS bit def */ + +#define GAYLE_CS_CCDET 0x40 /* credit card detect */ +#define GAYLE_CS_BVD1 0x20 /* battery voltage detect 1 */ +#define GAYLE_CS_SC 0x20 /* credit card status change */ +#define GAYLE_CS_BVD2 0x10 /* battery voltage detect 2 */ +#define GAYLE_CS_DA 0x10 /* digital audio */ +#define GAYLE_CS_WR 0x08 /* write enable (1 == enabled) */ +#define GAYLE_CS_BSY 0x04 /* credit card busy */ +#define GAYLE_CS_IRQ 0x04 /* interrupt request */ + +/* GAYLE_IRQ bit def */ + +#define GAYLE_IRQ_IDE 0x80 +#define GAYLE_IRQ_CCDET 0x40 +#define GAYLE_IRQ_BVD1 0x20 +#define GAYLE_IRQ_SC 0x20 +#define GAYLE_IRQ_BVD2 0x10 +#define GAYLE_IRQ_DA 0x10 +#define GAYLE_IRQ_WR 0x08 +#define GAYLE_IRQ_BSY 0x04 +#define GAYLE_IRQ_IRQ 0x04 +#define GAYLE_IRQ_IDEACK1 0x02 +#define GAYLE_IRQ_IDEACK0 0x01 + +/* GAYLE_CONFIG bit def + (bit 0-1 for program voltage, bit 2-3 for access speed */ + +#define GAYLE_CFG_0V 0x00 +#define GAYLE_CFG_5V 0x01 +#define GAYLE_CFG_12V 0x02 + +#define GAYLE_CFG_100NS 0x08 +#define GAYLE_CFG_150NS 0x04 +#define GAYLE_CFG_250NS 0x00 +#define GAYLE_CFG_720NS 0x0c + +#endif /* asm-m68k/amigayle.h */ + diff -ruN linux-2.1.99/include/asm-m68k/amipcmcia.h linux/include/asm-m68k/amipcmcia.h --- linux-2.1.99/include/asm-m68k/amipcmcia.h Thu Jan 1 01:00:00 1970 +++ linux/include/asm-m68k/amipcmcia.h Mon May 4 14:19:09 1998 @@ -0,0 +1,111 @@ + +/* +** asm-m68k/pcmcia.h -- Amiga Linux PCMCIA Definitions +** +** Copyright 1997 by Alain Malek +** +** This file is subject to the terms and conditions of the GNU General Public +** License. See the file COPYING in the main directory of this archive +** for more details. +** +** Created: 12/10/97 by Alain Malek +*/ + +#ifndef __AMIGA_PCMCIA_H__ +#define __AMIGA_PCMCIA_H__ + +#include + +/* prototypes */ + +void pcmcia_reset(void); +int pcmcia_copy_tuple(unsigned char tuple_id, void *tuple, int max_len); +void pcmcia_program_voltage(int voltage); +void pcmcia_access_speed(int speed); +void pcmcia_write_enable(void); +void pcmcia_write_disable(void); + +static inline u_char pcmcia_read_status(void) +{ + return (gayle.cardstatus & 0x7c); +} + +static inline u_char pcmcia_get_intreq(void) +{ + return (gayle.intreq); +} + +static inline void pcmcia_ack_int(u_char intreq) +{ + gayle.intreq = ((intreq & 0x2c) ^ 0x2c) | 0xc0; +} + +static inline void pcmcia_enable_irq(void) +{ + gayle.inten = GAYLE_IRQ_IDE|GAYLE_IRQ_IRQ; +} + +static inline void pcmcia_disable_irq(void) +{ + gayle.inten = GAYLE_IRQ_IDE; +} + +#define PCMCIA_INSERTED (gayle.cardstatus & GAYLE_CS_CCDET) + +/* valid voltages for pcmcia_ProgramVoltage */ + +#define PCMCIA_0V 0 +#define PCMCIA_5V 5 +#define PCMCIA_12V 12 + +/* valid speeds for pcmcia_AccessSpeed */ + +#define PCMCIA_SPEED_100NS 100 +#define PCMCIA_SPEED_150NS 150 +#define PCMCIA_SPEED_250NS 250 +#define PCMCIA_SPEED_720NS 720 + +/* PCMCIA Tuple codes */ + +#define CISTPL_NULL 0x00 +#define CISTPL_DEVICE 0x01 +#define CISTPL_LONGLINK_CB 0x02 +#define CISTPL_CONFIG_CB 0x04 +#define CISTPL_CFTABLE_ENTRY_CB 0x05 +#define CISTPL_LONGLINK_MFC 0x06 +#define CISTPL_BAR 0x07 +#define CISTPL_CHECKSUM 0x10 +#define CISTPL_LONGLINK_A 0x11 +#define CISTPL_LONGLINK_C 0x12 +#define CISTPL_LINKTARGET 0x13 +#define CISTPL_NO_LINK 0x14 +#define CISTPL_VERS_1 0x15 +#define CISTPL_ALTSTR 0x16 +#define CISTPL_DEVICE_A 0x17 +#define CISTPL_JEDEC_C 0x18 +#define CISTPL_JEDEC_A 0x19 +#define CISTPL_CONFIG 0x1a +#define CISTPL_CFTABLE_ENTRY 0x1b +#define CISTPL_DEVICE_OC 0x1c +#define CISTPL_DEVICE_OA 0x1d +#define CISTPL_DEVICE_GEO 0x1e +#define CISTPL_DEVICE_GEO_A 0x1f +#define CISTPL_MANFID 0x20 +#define CISTPL_FUNCID 0x21 +#define CISTPL_FUNCE 0x22 +#define CISTPL_SWIL 0x23 +#define CISTPL_END 0xff + +/* FUNCID */ + +#define CISTPL_FUNCID_MULTI 0x00 +#define CISTPL_FUNCID_MEMORY 0x01 +#define CISTPL_FUNCID_SERIAL 0x02 +#define CISTPL_FUNCID_PARALLEL 0x03 +#define CISTPL_FUNCID_FIXED 0x04 +#define CISTPL_FUNCID_VIDEO 0x05 +#define CISTPL_FUNCID_NETWORK 0x06 +#define CISTPL_FUNCID_AIMS 0x07 +#define CISTPL_FUNCID_SCSI 0x08 + +#endif --------------7EA543EE5273B33377A73105--