From: Jeff Kirsher Date: Fri, 7 Oct 2011 22:07:44 +0000 (+0000) Subject: cs89x0: Move the driver into the Cirrus dir X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=b340a207c5d81a0a33899e8ab3236a04dd8b48c3;p=~shefty%2Frdma-dev.git cs89x0: Move the driver into the Cirrus dir The cs89x0 driver was initial placed in the apple/ when it should have been placed in the cirrus/. This resolves the issue by moving the dirver and fixing up the respective Kconfig(s) and Makefile(s). Thanks to Sascha for reporting the issue. -v2 Fix a config error that was introduced with v1 by removing the dependency on MACE for NET_VENDOR_APPLE. CC: Russell Nelson CC: Andrew Morton Reported-by: Sascha Hauer Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/apple/Kconfig b/drivers/net/ethernet/apple/Kconfig index 59d5c2630ac..a759d5483ab 100644 --- a/drivers/net/ethernet/apple/Kconfig +++ b/drivers/net/ethernet/apple/Kconfig @@ -5,8 +5,7 @@ config NET_VENDOR_APPLE bool "Apple devices" default y - depends on (PPC_PMAC && PPC32) || MAC || ISA || EISA || MACH_IXDP2351 \ - || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440 + depends on (PPC_PMAC && PPC32) || MAC ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from @@ -75,23 +74,4 @@ config MACMACE say Y and read the Ethernet-HOWTO, available from . -config CS89x0 - tristate "CS89x0 support" - depends on (ISA || EISA || MACH_IXDP2351 \ - || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440) - ---help--- - Support for CS89x0 chipset based Ethernet cards. If you have a - network (Ethernet) card of this type, say Y and read the - Ethernet-HOWTO, available from - as well as - . - - To compile this driver as a module, choose M here. The module - will be called cs89x0. - -config CS89x0_NONISA_IRQ - def_bool y - depends on CS89x0 != n - depends on MACH_IXDP2351 || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440 - endif # NET_VENDOR_APPLE diff --git a/drivers/net/ethernet/apple/Makefile b/drivers/net/ethernet/apple/Makefile index 9d300864461..0d3a5919c95 100644 --- a/drivers/net/ethernet/apple/Makefile +++ b/drivers/net/ethernet/apple/Makefile @@ -5,5 +5,4 @@ obj-$(CONFIG_MACE) += mace.o obj-$(CONFIG_BMAC) += bmac.o obj-$(CONFIG_MAC89x0) += mac89x0.o -obj-$(CONFIG_CS89x0) += cs89x0.o obj-$(CONFIG_MACMACE) += macmace.o diff --git a/drivers/net/ethernet/apple/cs89x0.c b/drivers/net/ethernet/apple/cs89x0.c deleted file mode 100644 index f328da24c8f..00000000000 --- a/drivers/net/ethernet/apple/cs89x0.c +++ /dev/null @@ -1,1913 +0,0 @@ -/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0 - * driver for linux. - */ - -/* - Written 1996 by Russell Nelson, with reference to skeleton.c - written 1993-1994 by Donald Becker. - - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - The author may be reached at nelson@crynwr.com, Crynwr - Software, 521 Pleasant Valley Rd., Potsdam, NY 13676 - - Changelog: - - Mike Cruse : mcruse@cti-ltd.com - : Changes for Linux 2.0 compatibility. - : Added dev_id parameter in net_interrupt(), - : request_irq() and free_irq(). Just NULL for now. - - Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros - : in net_open() and net_close() so kerneld would know - : that the module is in use and wouldn't eject the - : driver prematurely. - - Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c - : as an example. Disabled autoprobing in init_module(), - : not a good thing to do to other devices while Linux - : is running from all accounts. - - Russ Nelson : Jul 13 1998. Added RxOnly DMA support. - - Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility. - : email: ethernet@crystal.cirrus.com - - Alan Cox : Removed 1.2 support, added 2.1 extra counters. - - Andrew Morton : Kernel 2.3.48 - : Handle kmalloc() failures - : Other resource allocation fixes - : Add SMP locks - : Integrate Russ Nelson's ALLOW_DMA functionality back in. - : If ALLOW_DMA is true, make DMA runtime selectable - : Folded in changes from Cirrus (Melody Lee - : ) - : Don't call netif_wake_queue() in net_send_packet() - : Fixed an out-of-mem bug in dma_rx() - : Updated Documentation/networking/cs89x0.txt - - Andrew Morton : Kernel 2.3.99-pre1 - : Use skb_reserve to longword align IP header (two places) - : Remove a delay loop from dma_rx() - : Replace '100' with HZ - : Clean up a couple of skb API abuses - : Added 'cs89x0_dma=N' kernel boot option - : Correctly initialise lp->lock in non-module compile - - Andrew Morton : Kernel 2.3.99-pre4-1 - : MOD_INC/DEC race fix (see - : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html) - - Andrew Morton : Kernel 2.4.0-test7-pre2 - : Enhanced EEPROM support to cover more devices, - : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch - : (Jason Gunthorpe ) - - Andrew Morton : Kernel 2.4.0-test11-pre4 - : Use dev->name in request_*() (Andrey Panin) - : Fix an error-path memleak in init_module() - : Preserve return value from request_irq() - : Fix type of `media' module parm (Keith Owens) - : Use SET_MODULE_OWNER() - : Tidied up strange request_irq() abuse in net_open(). - - Andrew Morton : Kernel 2.4.3-pre1 - : Request correct number of pages for DMA (Hugh Dickens) - : Select PP_ChipID _after_ unregister_netdev in cleanup_module() - : because unregister_netdev() calls get_stats. - : Make `version[]' __initdata - : Uninlined the read/write reg/word functions. - - Oskar Schirmer : oskar@scara.com - : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=) - - Deepak Saxena : dsaxena@plexity.net - : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support - - Dmitry Pervushin : dpervushin@ru.mvista.com - : PNX010X platform support - - Deepak Saxena : dsaxena@plexity.net - : Intel IXDP2351 platform support - - Dmitry Pervushin : dpervushin@ru.mvista.com - : PNX010X platform support - - Domenico Andreoli : cavokz@gmail.com - : QQ2440 platform support - -*/ - -/* Always include 'config.h' first in case the user wants to turn on - or override something. */ -#include - -/* - * Set this to zero to disable DMA code - * - * Note that even if DMA is turned off we still support the 'dma' and 'use_dma' - * module options so we don't break any startup scripts. - */ -#ifndef CONFIG_ISA_DMA_API -#define ALLOW_DMA 0 -#else -#define ALLOW_DMA 1 -#endif - -/* - * Set this to zero to remove all the debug statements via - * dead code elimination - */ -#define DEBUGGING 1 - -/* - Sources: - - Crynwr packet driver epktisa. - - Crystal Semiconductor data sheets. - -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#if ALLOW_DMA -#include -#endif - -#include "cs89x0.h" - -static char version[] __initdata = -"cs89x0.c: v2.4.3-pre1 Russell Nelson , Andrew Morton\n"; - -#define DRV_NAME "cs89x0" - -/* First, a few definitions that the brave might change. - A zero-terminated list of I/O addresses to be probed. Some special flags.. - Addr & 1 = Read back the address port, look for signature and reset - the page window before probing - Addr & 3 = Reset the page window and probe - The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space, - but it is possible that a Cirrus board could be plugged into the ISA - slots. */ -/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps - them to system IRQ numbers. This mapping is card specific and is set to - the configuration of the Cirrus Eval board for this chip. */ -#if defined(CONFIG_MACH_IXDP2351) -static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0}; -static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0}; -#elif defined(CONFIG_ARCH_IXDP2X01) -static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0}; -static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0}; -#elif defined(CONFIG_MACH_QQ2440) -#include -static unsigned int netcard_portlist[] __used __initdata = { QQ2440_CS8900_VIRT_BASE + 0x300, 0 }; -static unsigned int cs8900_irq_map[] = { QQ2440_CS8900_IRQ, 0, 0, 0 }; -#elif defined(CONFIG_MACH_MX31ADS) -#include -static unsigned int netcard_portlist[] __used __initdata = { - PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0 -}; -static unsigned cs8900_irq_map[] = {EXPIO_INT_ENET_INT, 0, 0, 0}; -#else -static unsigned int netcard_portlist[] __used __initdata = - { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0}; -static unsigned int cs8900_irq_map[] = {10,11,12,5}; -#endif - -#if DEBUGGING -static unsigned int net_debug = DEBUGGING; -#else -#define net_debug 0 /* gcc will remove all the debug code for us */ -#endif - -/* The number of low I/O ports used by the ethercard. */ -#define NETCARD_IO_EXTENT 16 - -/* we allow the user to override various values normally set in the EEPROM */ -#define FORCE_RJ45 0x0001 /* pick one of these three */ -#define FORCE_AUI 0x0002 -#define FORCE_BNC 0x0004 - -#define FORCE_AUTO 0x0010 /* pick one of these three */ -#define FORCE_HALF 0x0020 -#define FORCE_FULL 0x0030 - -/* Information that need to be kept for each board. */ -struct net_local { - int chip_type; /* one of: CS8900, CS8920, CS8920M */ - char chip_revision; /* revision letter of the chip ('A'...) */ - int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */ - int auto_neg_cnf; /* auto-negotiation word from EEPROM */ - int adapter_cnf; /* adapter configuration from EEPROM */ - int isa_config; /* ISA configuration from EEPROM */ - int irq_map; /* IRQ map from EEPROM */ - int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */ - int curr_rx_cfg; /* a copy of PP_RxCFG */ - int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */ - int send_underrun; /* keep track of how many underruns in a row we get */ - int force; /* force various values; see FORCE* above. */ - spinlock_t lock; -#if ALLOW_DMA - int use_dma; /* Flag: we're using dma */ - int dma; /* DMA channel */ - int dmasize; /* 16 or 64 */ - unsigned char *dma_buff; /* points to the beginning of the buffer */ - unsigned char *end_dma_buff; /* points to the end of the buffer */ - unsigned char *rx_dma_ptr; /* points to the next packet */ -#endif -}; - -/* Index to functions, as function prototypes. */ - -static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular); -static int net_open(struct net_device *dev); -static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev); -static irqreturn_t net_interrupt(int irq, void *dev_id); -static void set_multicast_list(struct net_device *dev); -static void net_timeout(struct net_device *dev); -static void net_rx(struct net_device *dev); -static int net_close(struct net_device *dev); -static struct net_device_stats *net_get_stats(struct net_device *dev); -static void reset_chip(struct net_device *dev); -static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer); -static int get_eeprom_cksum(int off, int len, int *buffer); -static int set_mac_address(struct net_device *dev, void *addr); -static void count_rx_errors(int status, struct net_device *dev); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void net_poll_controller(struct net_device *dev); -#endif -#if ALLOW_DMA -static void get_dma_channel(struct net_device *dev); -static void release_dma_buff(struct net_local *lp); -#endif - -/* Example routines you must write ;->. */ -#define tx_done(dev) 1 - -/* - * Permit 'cs89x0_dma=N' in the kernel boot environment - */ -#if !defined(MODULE) && (ALLOW_DMA != 0) -static int g_cs89x0_dma; - -static int __init dma_fn(char *str) -{ - g_cs89x0_dma = simple_strtol(str,NULL,0); - return 1; -} - -__setup("cs89x0_dma=", dma_fn); -#endif /* !defined(MODULE) && (ALLOW_DMA != 0) */ - -#ifndef MODULE -static int g_cs89x0_media__force; - -static int __init media_fn(char *str) -{ - if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45; - else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI; - else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC; - return 1; -} - -__setup("cs89x0_media=", media_fn); - - -/* Check for a network adaptor of this type, and return '0' iff one exists. - If dev->base_addr == 0, probe all likely locations. - If dev->base_addr == 1, always return failure. - If dev->base_addr == 2, allocate space for the device and return success - (detachable devices only). - Return 0 on success. - */ - -struct net_device * __init cs89x0_probe(int unit) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); - unsigned *port; - int err = 0; - int irq; - int io; - - if (!dev) - return ERR_PTR(-ENODEV); - - sprintf(dev->name, "eth%d", unit); - netdev_boot_setup_check(dev); - io = dev->base_addr; - irq = dev->irq; - - if (net_debug) - printk("cs89x0:cs89x0_probe(0x%x)\n", io); - - if (io > 0x1ff) { /* Check a single specified location. */ - err = cs89x0_probe1(dev, io, 0); - } else if (io != 0) { /* Don't probe at all. */ - err = -ENXIO; - } else { - for (port = netcard_portlist; *port; port++) { - if (cs89x0_probe1(dev, *port, 0) == 0) - break; - dev->irq = irq; - } - if (!*port) - err = -ENODEV; - } - if (err) - goto out; - return dev; -out: - free_netdev(dev); - printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n"); - return ERR_PTR(err); -} -#endif - -#if defined(CONFIG_MACH_IXDP2351) -static u16 -readword(unsigned long base_addr, int portno) -{ - return __raw_readw(base_addr + (portno << 1)); -} - -static void -writeword(unsigned long base_addr, int portno, u16 value) -{ - __raw_writew(value, base_addr + (portno << 1)); -} -#elif defined(CONFIG_ARCH_IXDP2X01) -static u16 -readword(unsigned long base_addr, int portno) -{ - return __raw_readl(base_addr + (portno << 1)); -} - -static void -writeword(unsigned long base_addr, int portno, u16 value) -{ - __raw_writel(value, base_addr + (portno << 1)); -} -#else -static u16 -readword(unsigned long base_addr, int portno) -{ - return inw(base_addr + portno); -} - -static void -writeword(unsigned long base_addr, int portno, u16 value) -{ - outw(value, base_addr + portno); -} -#endif - -static void -readwords(unsigned long base_addr, int portno, void *buf, int length) -{ - u8 *buf8 = (u8 *)buf; - - do { - u16 tmp16; - - tmp16 = readword(base_addr, portno); - *buf8++ = (u8)tmp16; - *buf8++ = (u8)(tmp16 >> 8); - } while (--length); -} - -static void -writewords(unsigned long base_addr, int portno, void *buf, int length) -{ - u8 *buf8 = (u8 *)buf; - - do { - u16 tmp16; - - tmp16 = *buf8++; - tmp16 |= (*buf8++) << 8; - writeword(base_addr, portno, tmp16); - } while (--length); -} - -static u16 -readreg(struct net_device *dev, u16 regno) -{ - writeword(dev->base_addr, ADD_PORT, regno); - return readword(dev->base_addr, DATA_PORT); -} - -static void -writereg(struct net_device *dev, u16 regno, u16 value) -{ - writeword(dev->base_addr, ADD_PORT, regno); - writeword(dev->base_addr, DATA_PORT, value); -} - -static int __init -wait_eeprom_ready(struct net_device *dev) -{ - int timeout = jiffies; - /* check to see if the EEPROM is ready, a timeout is used - - just in case EEPROM is ready when SI_BUSY in the - PP_SelfST is clear */ - while(readreg(dev, PP_SelfST) & SI_BUSY) - if (jiffies - timeout >= 40) - return -1; - return 0; -} - -static int __init -get_eeprom_data(struct net_device *dev, int off, int len, int *buffer) -{ - int i; - - if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len); - for (i = 0; i < len; i++) { - if (wait_eeprom_ready(dev) < 0) return -1; - /* Now send the EEPROM read command and EEPROM location to read */ - writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD); - if (wait_eeprom_ready(dev) < 0) return -1; - buffer[i] = readreg(dev, PP_EEData); - if (net_debug > 3) printk("%04x ", buffer[i]); - } - if (net_debug > 3) printk("\n"); - return 0; -} - -static int __init -get_eeprom_cksum(int off, int len, int *buffer) -{ - int i, cksum; - - cksum = 0; - for (i = 0; i < len; i++) - cksum += buffer[i]; - cksum &= 0xffff; - if (cksum == 0) - return 0; - return -1; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling receive - used by netconsole and other diagnostic tools - * to allow network i/o with interrupts disabled. - */ -static void net_poll_controller(struct net_device *dev) -{ - disable_irq(dev->irq); - net_interrupt(dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -static const struct net_device_ops net_ops = { - .ndo_open = net_open, - .ndo_stop = net_close, - .ndo_tx_timeout = net_timeout, - .ndo_start_xmit = net_send_packet, - .ndo_get_stats = net_get_stats, - .ndo_set_rx_mode = set_multicast_list, - .ndo_set_mac_address = set_mac_address, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = net_poll_controller, -#endif - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, -}; - -/* This is the real probe routine. Linux has a history of friendly device - probes on the ISA bus. A good device probes avoids doing writes, and - verifies that the correct device exists and functions. - Return 0 on success. - */ - -static int __init -cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) -{ - struct net_local *lp = netdev_priv(dev); - static unsigned version_printed; - int i; - int tmp; - unsigned rev_type = 0; - int eeprom_buff[CHKSUM_LEN]; - int retval; - - /* Initialize the device structure. */ - if (!modular) { - memset(lp, 0, sizeof(*lp)); - spin_lock_init(&lp->lock); -#ifndef MODULE -#if ALLOW_DMA - if (g_cs89x0_dma) { - lp->use_dma = 1; - lp->dma = g_cs89x0_dma; - lp->dmasize = 16; /* Could make this an option... */ - } -#endif - lp->force = g_cs89x0_media__force; -#endif - -#if defined(CONFIG_MACH_QQ2440) - lp->force |= FORCE_RJ45 | FORCE_FULL; -#endif - } - - /* Grab the region so we can find another board if autoIRQ fails. */ - /* WTF is going on here? */ - if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) { - printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n", - DRV_NAME, ioaddr, NETCARD_IO_EXTENT); - retval = -EBUSY; - goto out1; - } - - /* if they give us an odd I/O address, then do ONE write to - the address port, to get it back to address zero, where we - expect to find the EISA signature word. An IO with a base of 0x3 - will skip the test for the ADD_PORT. */ - if (ioaddr & 1) { - if (net_debug > 1) - printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr); - if ((ioaddr & 2) != 2) - if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) { - printk(KERN_ERR "%s: bad signature 0x%x\n", - dev->name, readword(ioaddr & ~3, ADD_PORT)); - retval = -ENODEV; - goto out2; - } - } - - ioaddr &= ~3; - printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n", - ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT)); - writeword(ioaddr, ADD_PORT, PP_ChipID); - - tmp = readword(ioaddr, DATA_PORT); - if (tmp != CHIP_EISA_ID_SIG) { - printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!=" - CHIP_EISA_ID_SIG_STR "\n", - dev->name, ioaddr, DATA_PORT, tmp); - retval = -ENODEV; - goto out2; - } - - /* Fill in the 'dev' fields. */ - dev->base_addr = ioaddr; - - /* get the chip type */ - rev_type = readreg(dev, PRODUCT_ID_ADD); - lp->chip_type = rev_type &~ REVISON_BITS; - lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; - - /* Check the chip type and revision in order to set the correct send command - CS8920 revision C and CS8900 revision F can use the faster send. */ - lp->send_cmd = TX_AFTER_381; - if (lp->chip_type == CS8900 && lp->chip_revision >= 'F') - lp->send_cmd = TX_NOW; - if (lp->chip_type != CS8900 && lp->chip_revision >= 'C') - lp->send_cmd = TX_NOW; - - if (net_debug && version_printed++ == 0) - printk(version); - - printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ", - dev->name, - lp->chip_type==CS8900?'0':'2', - lp->chip_type==CS8920M?"M":"", - lp->chip_revision, - dev->base_addr); - - reset_chip(dev); - - /* Here we read the current configuration of the chip. If there - is no Extended EEPROM then the idea is to not disturb the chip - configuration, it should have been correctly setup by automatic - EEPROM read on reset. So, if the chip says it read the EEPROM - the driver will always do *something* instead of complain that - adapter_cnf is 0. */ - - - if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == - (EEPROM_OK|EEPROM_PRESENT)) { - /* Load the MAC. */ - for (i=0; i < ETH_ALEN/2; i++) { - unsigned int Addr; - Addr = readreg(dev, PP_IA+i*2); - dev->dev_addr[i*2] = Addr & 0xFF; - dev->dev_addr[i*2+1] = Addr >> 8; - } - - /* Load the Adapter Configuration. - Note: Barring any more specific information from some - other source (ie EEPROM+Schematics), we would not know - how to operate a 10Base2 interface on the AUI port. - However, since we do read the status of HCB1 and use - settings that always result in calls to control_dc_dc(dev,0) - a BNC interface should work if the enable pin - (dc/dc converter) is on HCB1. It will be called AUI - however. */ - - lp->adapter_cnf = 0; - i = readreg(dev, PP_LineCTL); - /* Preserve the setting of the HCB1 pin. */ - if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL)) - lp->adapter_cnf |= A_CNF_DC_DC_POLARITY; - /* Save the sqelch bit */ - if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH) - lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH; - /* Check if the card is in 10Base-t only mode */ - if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0) - lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T; - /* Check if the card is in AUI only mode */ - if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY) - lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI; - /* Check if the card is in Auto mode. */ - if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET) - lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | - A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO; - - if (net_debug > 1) - printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n", - dev->name, i, lp->adapter_cnf); - - /* IRQ. Other chips already probe, see below. */ - if (lp->chip_type == CS8900) - lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK; - - printk( "[Cirrus EEPROM] "); - } - - printk("\n"); - - /* First check to see if an EEPROM is attached. */ - - if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0) - printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n"); - else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { - printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n"); - } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { - /* Check if the chip was able to read its own configuration starting - at 0 in the EEPROM*/ - if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) != - (EEPROM_OK|EEPROM_PRESENT)) - printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n"); - - } else { - /* This reads an extended EEPROM that is not documented - in the CS8900 datasheet. */ - - /* get transmission control word but keep the autonegotiation bits */ - if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; - /* Store adapter configuration */ - if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2]; - /* Store ISA configuration */ - lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2]; - dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8; - - /* eeprom_buff has 32-bit ints, so we can't just memcpy it */ - /* store the initial memory base address */ - for (i = 0; i < ETH_ALEN/2; i++) { - dev->dev_addr[i*2] = eeprom_buff[i]; - dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8; - } - if (net_debug > 1) - printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n", - dev->name, lp->adapter_cnf); - } - - /* allow them to force multiple transceivers. If they force multiple, autosense */ - { - int count = 0; - if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; } - if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; } - if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; } - if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; } - else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; } - else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; } - else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; } - } - - if (net_debug > 1) - printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n", - dev->name, lp->force, lp->adapter_cnf); - - /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */ - - /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */ - - /* FIXME: we don't set the Ethernet address on the command line. Use - ifconfig IFACE hw ether AABBCCDDEEFF */ - - printk(KERN_INFO "cs89x0 media %s%s%s", - (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"", - (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"", - (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":""); - - lp->irq_map = 0xffff; - - /* If this is a CS8900 then no pnp soft */ - if (lp->chip_type != CS8900 && - /* Check if the ISA IRQ has been set */ - (i = readreg(dev, PP_CS8920_ISAINT) & 0xff, - (i != 0 && i < CS8920_NO_INTS))) { - if (!dev->irq) - dev->irq = i; - } else { - i = lp->isa_config & INT_NO_MASK; - if (lp->chip_type == CS8900) { -#ifdef CONFIG_CS89x0_NONISA_IRQ - i = cs8900_irq_map[0]; -#else - /* Translate the IRQ using the IRQ mapping table. */ - if (i >= ARRAY_SIZE(cs8900_irq_map)) - printk("\ncs89x0: invalid ISA interrupt number %d\n", i); - else - i = cs8900_irq_map[i]; - - lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */ - } else { - int irq_map_buff[IRQ_MAP_LEN/2]; - - if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA, - IRQ_MAP_LEN/2, - irq_map_buff) >= 0) { - if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT) - lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8); - } -#endif - } - if (!dev->irq) - dev->irq = i; - } - - printk(" IRQ %d", dev->irq); - -#if ALLOW_DMA - if (lp->use_dma) { - get_dma_channel(dev); - printk(", DMA %d", dev->dma); - } - else -#endif - { - printk(", programmed I/O"); - } - - /* print the ethernet address. */ - printk(", MAC %pM", dev->dev_addr); - - dev->netdev_ops = &net_ops; - dev->watchdog_timeo = HZ; - - printk("\n"); - if (net_debug) - printk("cs89x0_probe1() successful\n"); - - retval = register_netdev(dev); - if (retval) - goto out3; - return 0; -out3: - writeword(dev->base_addr, ADD_PORT, PP_ChipID); -out2: - release_region(ioaddr & ~3, NETCARD_IO_EXTENT); -out1: - return retval; -} - - -/********************************* - * This page contains DMA routines -**********************************/ - -#if ALLOW_DMA - -#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17) - -static void -get_dma_channel(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - - if (lp->dma) { - dev->dma = lp->dma; - lp->isa_config |= ISA_RxDMA; - } else { - if ((lp->isa_config & ANY_ISA_DMA) == 0) - return; - dev->dma = lp->isa_config & DMA_NO_MASK; - if (lp->chip_type == CS8900) - dev->dma += 5; - if (dev->dma < 5 || dev->dma > 7) { - lp->isa_config &= ~ANY_ISA_DMA; - return; - } - } -} - -static void -write_dma(struct net_device *dev, int chip_type, int dma) -{ - struct net_local *lp = netdev_priv(dev); - if ((lp->isa_config & ANY_ISA_DMA) == 0) - return; - if (chip_type == CS8900) { - writereg(dev, PP_CS8900_ISADMA, dma-5); - } else { - writereg(dev, PP_CS8920_ISADMA, dma); - } -} - -static void -set_dma_cfg(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - - if (lp->use_dma) { - if ((lp->isa_config & ANY_ISA_DMA) == 0) { - if (net_debug > 3) - printk("set_dma_cfg(): no DMA\n"); - return; - } - if (lp->isa_config & ISA_RxDMA) { - lp->curr_rx_cfg |= RX_DMA_ONLY; - if (net_debug > 3) - printk("set_dma_cfg(): RX_DMA_ONLY\n"); - } else { - lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */ - if (net_debug > 3) - printk("set_dma_cfg(): AUTO_RX_DMA\n"); - } - } -} - -static int -dma_bufcfg(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - if (lp->use_dma) - return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0; - else - return 0; -} - -static int -dma_busctl(struct net_device *dev) -{ - int retval = 0; - struct net_local *lp = netdev_priv(dev); - if (lp->use_dma) { - if (lp->isa_config & ANY_ISA_DMA) - retval |= RESET_RX_DMA; /* Reset the DMA pointer */ - if (lp->isa_config & DMA_BURST) - retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */ - if (lp->dmasize == 64) - retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */ - retval |= MEMORY_ON; /* we need memory enabled to use DMA. */ - } - return retval; -} - -static void -dma_rx(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - struct sk_buff *skb; - int status, length; - unsigned char *bp = lp->rx_dma_ptr; - - status = bp[0] + (bp[1]<<8); - length = bp[2] + (bp[3]<<8); - bp += 4; - if (net_debug > 5) { - printk( "%s: receiving DMA packet at %lx, status %x, length %x\n", - dev->name, (unsigned long)bp, status, length); - } - if ((status & RX_OK) == 0) { - count_rx_errors(status, dev); - goto skip_this_frame; - } - - /* Malloc up new buffer. */ - skb = dev_alloc_skb(length + 2); - if (skb == NULL) { - if (net_debug) /* I don't think we want to do this to a stressed system */ - printk("%s: Memory squeeze, dropping packet.\n", dev->name); - dev->stats.rx_dropped++; - - /* AKPM: advance bp to the next frame */ -skip_this_frame: - bp += (length + 3) & ~3; - if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; - lp->rx_dma_ptr = bp; - return; - } - skb_reserve(skb, 2); /* longword align L3 header */ - - if (bp + length > lp->end_dma_buff) { - int semi_cnt = lp->end_dma_buff - bp; - memcpy(skb_put(skb,semi_cnt), bp, semi_cnt); - memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff, - length - semi_cnt); - } else { - memcpy(skb_put(skb,length), bp, length); - } - bp += (length + 3) & ~3; - if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; - lp->rx_dma_ptr = bp; - - if (net_debug > 3) { - printk( "%s: received %d byte DMA packet of type %x\n", - dev->name, length, - (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); - } - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += length; -} - -#endif /* ALLOW_DMA */ - -static void __init reset_chip(struct net_device *dev) -{ -#if !defined(CONFIG_MACH_MX31ADS) -#if !defined(CS89x0_NONISA_IRQ) - struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; -#endif /* CS89x0_NONISA_IRQ */ - int reset_start_time; - - writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET); - - /* wait 30 ms */ - msleep(30); - -#if !defined(CS89x0_NONISA_IRQ) - if (lp->chip_type != CS8900) { - /* Hardware problem requires PNP registers to be reconfigured after a reset */ - writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT); - outb(dev->irq, ioaddr + DATA_PORT); - outb(0, ioaddr + DATA_PORT + 1); - - writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB); - outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT); - outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1); - } -#endif /* CS89x0_NONISA_IRQ */ - - /* Wait until the chip is reset */ - reset_start_time = jiffies; - while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2) - ; -#endif /* !CONFIG_MACH_MX31ADS */ -} - - -static void -control_dc_dc(struct net_device *dev, int on_not_off) -{ - struct net_local *lp = netdev_priv(dev); - unsigned int selfcontrol; - int timenow = jiffies; - /* control the DC to DC convertor in the SelfControl register. - Note: This is hooked up to a general purpose pin, might not - always be a DC to DC convertor. */ - - selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */ - if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off) - selfcontrol |= HCB1; - else - selfcontrol &= ~HCB1; - writereg(dev, PP_SelfCTL, selfcontrol); - - /* Wait for the DC/DC converter to power up - 500ms */ - while (jiffies - timenow < HZ) - ; -} - -#define DETECTED_NONE 0 -#define DETECTED_RJ45H 1 -#define DETECTED_RJ45F 2 -#define DETECTED_AUI 3 -#define DETECTED_BNC 4 - -static int -detect_tp(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int timenow = jiffies; - int fdx; - - if (net_debug > 1) printk("%s: Attempting TP\n", dev->name); - - /* If connected to another full duplex capable 10-Base-T card the link pulses - seem to be lost when the auto detect bit in the LineCTL is set. - To overcome this the auto detect bit will be cleared whilst testing the - 10-Base-T interface. This would not be necessary for the sparrow chip but - is simpler to do it anyway. */ - writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY); - control_dc_dc(dev, 0); - - /* Delay for the hardware to work out if the TP cable is present - 150ms */ - for (timenow = jiffies; jiffies - timenow < 15; ) - ; - if ((readreg(dev, PP_LineST) & LINK_OK) == 0) - return DETECTED_NONE; - - if (lp->chip_type == CS8900) { - switch (lp->force & 0xf0) { -#if 0 - case FORCE_AUTO: - printk("%s: cs8900 doesn't autonegotiate\n",dev->name); - return DETECTED_NONE; -#endif - /* CS8900 doesn't support AUTO, change to HALF*/ - case FORCE_AUTO: - lp->force &= ~FORCE_AUTO; - lp->force |= FORCE_HALF; - break; - case FORCE_HALF: - break; - case FORCE_FULL: - writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900); - break; - } - fdx = readreg(dev, PP_TestCTL) & FDX_8900; - } else { - switch (lp->force & 0xf0) { - case FORCE_AUTO: - lp->auto_neg_cnf = AUTO_NEG_ENABLE; - break; - case FORCE_HALF: - lp->auto_neg_cnf = 0; - break; - case FORCE_FULL: - lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX; - break; - } - - writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK); - - if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) { - printk(KERN_INFO "%s: negotiating duplex...\n",dev->name); - while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) { - if (jiffies - timenow > 4000) { - printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n"); - break; - } - } - } - fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE; - } - if (fdx) - return DETECTED_RJ45F; - else - return DETECTED_RJ45H; -} - -/* send a test packet - return true if carrier bits are ok */ -static int -send_test_pkt(struct net_device *dev) -{ - char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0, - 0, 46, /* A 46 in network order */ - 0, 0, /* DSAP=0 & SSAP=0 fields */ - 0xf3, 0 /* Control (Test Req + P bit set) */ }; - long timenow = jiffies; - - writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON); - - memcpy(test_packet, dev->dev_addr, ETH_ALEN); - memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN); - - writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL); - writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN); - - /* Test to see if the chip has allocated memory for the packet */ - while (jiffies - timenow < 5) - if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW) - break; - if (jiffies - timenow >= 5) - return 0; /* this shouldn't happen */ - - /* Write the contents of the packet */ - writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1); - - if (net_debug > 1) printk("Sending test packet "); - /* wait a couple of jiffies for packet to be received */ - for (timenow = jiffies; jiffies - timenow < 3; ) - ; - if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) { - if (net_debug > 1) printk("succeeded\n"); - return 1; - } - if (net_debug > 1) printk("failed\n"); - return 0; -} - - -static int -detect_aui(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - - if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name); - control_dc_dc(dev, 0); - - writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); - - if (send_test_pkt(dev)) - return DETECTED_AUI; - else - return DETECTED_NONE; -} - -static int -detect_bnc(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - - if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name); - control_dc_dc(dev, 1); - - writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); - - if (send_test_pkt(dev)) - return DETECTED_BNC; - else - return DETECTED_NONE; -} - - -static void -write_irq(struct net_device *dev, int chip_type, int irq) -{ - int i; - - if (chip_type == CS8900) { - /* Search the mapping table for the corresponding IRQ pin. */ - for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++) - if (cs8900_irq_map[i] == irq) - break; - /* Not found */ - if (i == ARRAY_SIZE(cs8900_irq_map)) - i = 3; - writereg(dev, PP_CS8900_ISAINT, i); - } else { - writereg(dev, PP_CS8920_ISAINT, irq); - } -} - -/* Open/initialize the board. This is called (in the current kernel) - 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. - */ - -/* AKPM: do we need to do any locking here? */ - -static int -net_open(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - int result = 0; - int i; - int ret; - - if (dev->irq < 2) { - /* Allow interrupts to be generated by the chip */ -/* Cirrus' release had this: */ -#if 0 - writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); -#endif -/* And 2.3.47 had this: */ - writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); - - for (i = 2; i < CS8920_NO_INTS; i++) { - if ((1 << i) & lp->irq_map) { - if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) { - dev->irq = i; - write_irq(dev, lp->chip_type, i); - /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */ - break; - } - } - } - - if (i >= CS8920_NO_INTS) { - writereg(dev, PP_BusCTL, 0); /* disable interrupts. */ - printk(KERN_ERR "cs89x0: can't get an interrupt\n"); - ret = -EAGAIN; - goto bad_out; - } - } - else - { -#ifndef CONFIG_CS89x0_NONISA_IRQ - if (((1 << dev->irq) & lp->irq_map) == 0) { - printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n", - dev->name, dev->irq, lp->irq_map); - ret = -EAGAIN; - goto bad_out; - } -#endif -/* FIXME: Cirrus' release had this: */ - writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); -/* And 2.3.47 had this: */ -#if 0 - writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); -#endif - write_irq(dev, lp->chip_type, dev->irq); - ret = request_irq(dev->irq, net_interrupt, 0, dev->name, dev); - if (ret) { - printk(KERN_ERR "cs89x0: request_irq(%d) failed\n", dev->irq); - goto bad_out; - } - } - -#if ALLOW_DMA - if (lp->use_dma) { - if (lp->isa_config & ANY_ISA_DMA) { - unsigned long flags; - lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL, - get_order(lp->dmasize * 1024)); - - if (!lp->dma_buff) { - printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize); - goto release_irq; - } - if (net_debug > 1) { - printk( "%s: dma %lx %lx\n", - dev->name, - (unsigned long)lp->dma_buff, - (unsigned long)isa_virt_to_bus(lp->dma_buff)); - } - if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS || - !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) { - printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name); - goto release_irq; - } - memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */ - if (request_dma(dev->dma, dev->name)) { - printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma); - goto release_irq; - } - write_dma(dev, lp->chip_type, dev->dma); - lp->rx_dma_ptr = lp->dma_buff; - lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024; - spin_lock_irqsave(&lp->lock, flags); - disable_dma(dev->dma); - clear_dma_ff(dev->dma); - set_dma_mode(dev->dma, DMA_RX_MODE); /* auto_init as well */ - set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff)); - set_dma_count(dev->dma, lp->dmasize*1024); - enable_dma(dev->dma); - spin_unlock_irqrestore(&lp->lock, flags); - } - } -#endif /* ALLOW_DMA */ - - /* set the Ethernet address */ - for (i=0; i < ETH_ALEN/2; i++) - writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); - - /* while we're testing the interface, leave interrupts disabled */ - writereg(dev, PP_BusCTL, MEMORY_ON); - - /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */ - if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) - lp->linectl = LOW_RX_SQUELCH; - else - lp->linectl = 0; - - /* check to make sure that they have the "right" hardware available */ - switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { - case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break; - case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break; - case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break; - default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2); - } - if (!result) { - printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name); -release_dma: -#if ALLOW_DMA - free_dma(dev->dma); -release_irq: - release_dma_buff(lp); -#endif - writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON)); - free_irq(dev->irq, dev); - ret = -EAGAIN; - goto bad_out; - } - - /* set the hardware to the configured choice */ - switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { - case A_CNF_MEDIA_10B_T: - result = detect_tp(dev); - if (result==DETECTED_NONE) { - printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name); - if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ - result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */ - } - break; - case A_CNF_MEDIA_AUI: - result = detect_aui(dev); - if (result==DETECTED_NONE) { - printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name); - if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ - result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */ - } - break; - case A_CNF_MEDIA_10B_2: - result = detect_bnc(dev); - if (result==DETECTED_NONE) { - printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name); - if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ - result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */ - } - break; - case A_CNF_MEDIA_AUTO: - writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET); - if (lp->adapter_cnf & A_CNF_10B_T) - if ((result = detect_tp(dev)) != DETECTED_NONE) - break; - if (lp->adapter_cnf & A_CNF_AUI) - if ((result = detect_aui(dev)) != DETECTED_NONE) - break; - if (lp->adapter_cnf & A_CNF_10B_2) - if ((result = detect_bnc(dev)) != DETECTED_NONE) - break; - printk(KERN_ERR "%s: no media detected\n", dev->name); - goto release_dma; - } - switch(result) { - case DETECTED_NONE: - printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name); - goto release_dma; - case DETECTED_RJ45H: - printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name); - break; - case DETECTED_RJ45F: - printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name); - break; - case DETECTED_AUI: - printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name); - break; - case DETECTED_BNC: - printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name); - break; - } - - /* Turn on both receive and transmit operations */ - writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); - - /* Receive only error free packets addressed to this card */ - lp->rx_mode = 0; - writereg(dev, PP_RxCTL, DEF_RX_ACCEPT); - - lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL; - - if (lp->isa_config & STREAM_TRANSFER) - lp->curr_rx_cfg |= RX_STREAM_ENBL; -#if ALLOW_DMA - set_dma_cfg(dev); -#endif - writereg(dev, PP_RxCFG, lp->curr_rx_cfg); - - writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL | - TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); - - writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL | -#if ALLOW_DMA - dma_bufcfg(dev) | -#endif - TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL); - - /* now that we've got our act together, enable everything */ - writereg(dev, PP_BusCTL, ENABLE_IRQ - | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */ -#if ALLOW_DMA - | dma_busctl(dev) -#endif - ); - netif_start_queue(dev); - if (net_debug > 1) - printk("cs89x0: net_open() succeeded\n"); - return 0; -bad_out: - return ret; -} - -static void net_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. */ - if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name, - tx_done(dev) ? "IRQ conflict ?" : "network cable problem"); - /* Try to restart the adaptor. */ - netif_wake_queue(dev); -} - -static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned long flags; - - if (net_debug > 3) { - printk("%s: sent %d byte packet of type %x\n", - dev->name, skb->len, - (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); - } - - /* keep the upload from being interrupted, since we - ask the chip to start transmitting before the - whole packet has been completely uploaded. */ - - spin_lock_irqsave(&lp->lock, flags); - netif_stop_queue(dev); - - /* initiate a transmit sequence */ - writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd); - writeword(dev->base_addr, TX_LEN_PORT, skb->len); - - /* Test to see if the chip has allocated memory for the packet */ - if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) { - /* - * Gasp! It hasn't. But that shouldn't happen since - * we're waiting for TxOk, so return 1 and requeue this packet. - */ - - spin_unlock_irqrestore(&lp->lock, flags); - if (net_debug) printk("cs89x0: Tx buffer not free!\n"); - return NETDEV_TX_BUSY; - } - /* Write the contents of the packet */ - writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1); - spin_unlock_irqrestore(&lp->lock, flags); - dev->stats.tx_bytes += skb->len; - dev_kfree_skb (skb); - - /* - * We DO NOT call netif_wake_queue() here. - * We also DO NOT call netif_start_queue(). - * - * Either of these would cause another bottom half run through - * net_send_packet() before this packet has fully gone out. That causes - * us to hit the "Gasp!" above and the send is rescheduled. it runs like - * a dog. We just return and wait for the Tx completion interrupt handler - * to restart the netdevice layer - */ - - return NETDEV_TX_OK; -} - -/* The typical workload of the driver: - Handle the network interface interrupts. */ - -static irqreturn_t net_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct net_local *lp; - int ioaddr, status; - int handled = 0; - - ioaddr = dev->base_addr; - lp = netdev_priv(dev); - - /* we MUST read all the events out of the ISQ, otherwise we'll never - get interrupted again. As a consequence, we can't have any limit - on the number of times we loop in the interrupt handler. The - hardware guarantees that eventually we'll run out of events. Of - course, if you're on a slow machine, and packets are arriving - faster than you can read them off, you're screwed. Hasta la - vista, baby! */ - while ((status = readword(dev->base_addr, ISQ_PORT))) { - if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status); - handled = 1; - switch(status & ISQ_EVENT_MASK) { - case ISQ_RECEIVER_EVENT: - /* Got a packet(s). */ - net_rx(dev); - break; - case ISQ_TRANSMITTER_EVENT: - dev->stats.tx_packets++; - netif_wake_queue(dev); /* Inform upper layers. */ - if ((status & ( TX_OK | - TX_LOST_CRS | - TX_SQE_ERROR | - TX_LATE_COL | - TX_16_COL)) != TX_OK) { - if ((status & TX_OK) == 0) - dev->stats.tx_errors++; - if (status & TX_LOST_CRS) - dev->stats.tx_carrier_errors++; - if (status & TX_SQE_ERROR) - dev->stats.tx_heartbeat_errors++; - if (status & TX_LATE_COL) - dev->stats.tx_window_errors++; - if (status & TX_16_COL) - dev->stats.tx_aborted_errors++; - } - break; - case ISQ_BUFFER_EVENT: - if (status & READY_FOR_TX) { - /* we tried to transmit a packet earlier, - but inexplicably ran out of buffers. - That shouldn't happen since we only ever - load one packet. Shrug. Do the right - thing anyway. */ - netif_wake_queue(dev); /* Inform upper layers. */ - } - if (status & TX_UNDERRUN) { - if (net_debug > 0) printk("%s: transmit underrun\n", dev->name); - lp->send_underrun++; - if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381; - else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL; - /* transmit cycle is done, although - frame wasn't transmitted - this - avoids having to wait for the upper - layers to timeout on us, in the - event of a tx underrun */ - netif_wake_queue(dev); /* Inform upper layers. */ - } -#if ALLOW_DMA - if (lp->use_dma && (status & RX_DMA)) { - int count = readreg(dev, PP_DmaFrameCnt); - while(count) { - if (net_debug > 5) - printk("%s: receiving %d DMA frames\n", dev->name, count); - if (net_debug > 2 && count >1) - printk("%s: receiving %d DMA frames\n", dev->name, count); - dma_rx(dev); - if (--count == 0) - count = readreg(dev, PP_DmaFrameCnt); - if (net_debug > 2 && count > 0) - printk("%s: continuing with %d DMA frames\n", dev->name, count); - } - } -#endif - break; - case ISQ_RX_MISS_EVENT: - dev->stats.rx_missed_errors += (status >> 6); - break; - case ISQ_TX_COL_EVENT: - dev->stats.collisions += (status >> 6); - break; - } - } - return IRQ_RETVAL(handled); -} - -static void -count_rx_errors(int status, struct net_device *dev) -{ - dev->stats.rx_errors++; - if (status & RX_RUNT) - dev->stats.rx_length_errors++; - if (status & RX_EXTRA_DATA) - dev->stats.rx_length_errors++; - if ((status & RX_CRC_ERROR) && !(status & (RX_EXTRA_DATA|RX_RUNT))) - /* per str 172 */ - dev->stats.rx_crc_errors++; - if (status & RX_DRIBBLE) - dev->stats.rx_frame_errors++; -} - -/* We have a good packet(s), get it/them out of the buffers. */ -static void -net_rx(struct net_device *dev) -{ - struct sk_buff *skb; - int status, length; - - int ioaddr = dev->base_addr; - status = readword(ioaddr, RX_FRAME_PORT); - length = readword(ioaddr, RX_FRAME_PORT); - - if ((status & RX_OK) == 0) { - count_rx_errors(status, dev); - return; - } - - /* Malloc up new buffer. */ - skb = dev_alloc_skb(length + 2); - if (skb == NULL) { -#if 0 /* Again, this seems a cruel thing to do */ - printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); -#endif - dev->stats.rx_dropped++; - return; - } - skb_reserve(skb, 2); /* longword align L3 header */ - - readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1); - if (length & 1) - skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT); - - if (net_debug > 3) { - printk( "%s: received %d byte packet of type %x\n", - dev->name, length, - (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); - } - - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += length; -} - -#if ALLOW_DMA -static void release_dma_buff(struct net_local *lp) -{ - if (lp->dma_buff) { - free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024)); - lp->dma_buff = NULL; - } -} -#endif - -/* The inverse routine to net_open(). */ -static int -net_close(struct net_device *dev) -{ -#if ALLOW_DMA - struct net_local *lp = netdev_priv(dev); -#endif - - netif_stop_queue(dev); - - writereg(dev, PP_RxCFG, 0); - writereg(dev, PP_TxCFG, 0); - writereg(dev, PP_BufCFG, 0); - writereg(dev, PP_BusCTL, 0); - - free_irq(dev->irq, dev); - -#if ALLOW_DMA - if (lp->use_dma && lp->dma) { - free_dma(dev->dma); - release_dma_buff(lp); - } -#endif - - /* Update the statistics here. */ - return 0; -} - -/* Get the current statistics. This may be called with the card open or - closed. */ -static struct net_device_stats * -net_get_stats(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - /* Update the statistics from the device registers. */ - dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6); - dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6); - spin_unlock_irqrestore(&lp->lock, flags); - - return &dev->stats; -} - -static void set_multicast_list(struct net_device *dev) -{ - struct net_local *lp = netdev_priv(dev); - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - if(dev->flags&IFF_PROMISC) - { - lp->rx_mode = RX_ALL_ACCEPT; - } - else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev)) - { - /* The multicast-accept list is initialized to accept-all, and we - rely on higher-level filtering for now. */ - lp->rx_mode = RX_MULTCAST_ACCEPT; - } - else - lp->rx_mode = 0; - - writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode); - - /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */ - writereg(dev, PP_RxCFG, lp->curr_rx_cfg | - (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0)); - spin_unlock_irqrestore(&lp->lock, flags); -} - - -static int set_mac_address(struct net_device *dev, void *p) -{ - int i; - struct sockaddr *addr = p; - - if (netif_running(dev)) - return -EBUSY; - - memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); - - if (net_debug) - printk("%s: Setting MAC address to %pM.\n", - dev->name, dev->dev_addr); - - /* set the Ethernet address */ - for (i=0; i < ETH_ALEN/2; i++) - writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); - - return 0; -} - -#ifdef MODULE - -static struct net_device *dev_cs89x0; - -/* - * Support the 'debug' module parm even if we're compiled for non-debug to - * avoid breaking someone's startup scripts - */ - -static int io; -static int irq; -static int debug; -static char media[8]; -static int duplex=-1; - -static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */ -static int dma; -static int dmasize=16; /* or 64 */ - -module_param(io, int, 0); -module_param(irq, int, 0); -module_param(debug, int, 0); -module_param_string(media, media, sizeof(media), 0); -module_param(duplex, int, 0); -module_param(dma , int, 0); -module_param(dmasize , int, 0); -module_param(use_dma , int, 0); -MODULE_PARM_DESC(io, "cs89x0 I/O base address"); -MODULE_PARM_DESC(irq, "cs89x0 IRQ number"); -#if DEBUGGING -MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)"); -#else -MODULE_PARM_DESC(debug, "(ignored)"); -#endif -MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)"); -/* No other value than -1 for duplex seems to be currently interpreted */ -MODULE_PARM_DESC(duplex, "(ignored)"); -#if ALLOW_DMA -MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0"); -MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0"); -MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)"); -#else -MODULE_PARM_DESC(dma , "(ignored)"); -MODULE_PARM_DESC(dmasize , "(ignored)"); -MODULE_PARM_DESC(use_dma , "(ignored)"); -#endif - -MODULE_AUTHOR("Mike Cruse, Russwll Nelson , Andrew Morton"); -MODULE_LICENSE("GPL"); - - -/* -* media=t - specify media type - or media=2 - or media=aui - or medai=auto -* duplex=0 - specify forced half/full/autonegotiate duplex -* debug=# - debug level - - -* Default Chip Configuration: - * DMA Burst = enabled - * IOCHRDY Enabled = enabled - * UseSA = enabled - * CS8900 defaults to half-duplex if not specified on command-line - * CS8920 defaults to autoneg if not specified on command-line - * Use reset defaults for other config parameters - -* Assumptions: - * media type specified is supported (circuitry is present) - * if memory address is > 1MB, then required mem decode hw is present - * if 10B-2, then agent other than driver will enable DC/DC converter - (hw or software util) - - -*/ - -int __init init_module(void) -{ - struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); - struct net_local *lp; - int ret = 0; - -#if DEBUGGING - net_debug = debug; -#else - debug = 0; -#endif - if (!dev) - return -ENOMEM; - - dev->irq = irq; - dev->base_addr = io; - lp = netdev_priv(dev); - -#if ALLOW_DMA - if (use_dma) { - lp->use_dma = use_dma; - lp->dma = dma; - lp->dmasize = dmasize; - } -#endif - - spin_lock_init(&lp->lock); - - /* boy, they'd better get these right */ - if (!strcmp(media, "rj45")) - lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; - else if (!strcmp(media, "aui")) - lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI; - else if (!strcmp(media, "bnc")) - lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2; - else - lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; - - if (duplex==-1) - lp->auto_neg_cnf = AUTO_NEG_ENABLE; - - if (io == 0) { - printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n"); - printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n"); - ret = -EPERM; - goto out; - } else if (io <= 0x1ff) { - ret = -ENXIO; - goto out; - } - -#if ALLOW_DMA - if (use_dma && dmasize != 16 && dmasize != 64) { - printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize); - ret = -EPERM; - goto out; - } -#endif - ret = cs89x0_probe1(dev, io, 1); - if (ret) - goto out; - - dev_cs89x0 = dev; - return 0; -out: - free_netdev(dev); - return ret; -} - -void __exit -cleanup_module(void) -{ - unregister_netdev(dev_cs89x0); - writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID); - release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT); - free_netdev(dev_cs89x0); -} -#endif /* MODULE */ - -/* - * Local variables: - * version-control: t - * kept-new-versions: 5 - * c-indent-level: 8 - * tab-width: 8 - * End: - * - */ diff --git a/drivers/net/ethernet/apple/cs89x0.h b/drivers/net/ethernet/apple/cs89x0.h deleted file mode 100644 index 91423b70bb4..00000000000 --- a/drivers/net/ethernet/apple/cs89x0.h +++ /dev/null @@ -1,465 +0,0 @@ -/* Copyright, 1988-1992, Russell Nelson, Crynwr Software - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, version 1. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -#define PP_ChipID 0x0000 /* offset 0h -> Corp -ID */ - /* offset 2h -> Model/Product Number */ - /* offset 3h -> Chip Revision Number */ - -#define PP_ISAIOB 0x0020 /* IO base address */ -#define PP_CS8900_ISAINT 0x0022 /* ISA interrupt select */ -#define PP_CS8920_ISAINT 0x0370 /* ISA interrupt select */ -#define PP_CS8900_ISADMA 0x0024 /* ISA Rec DMA channel */ -#define PP_CS8920_ISADMA 0x0374 /* ISA Rec DMA channel */ -#define PP_ISASOF 0x0026 /* ISA DMA offset */ -#define PP_DmaFrameCnt 0x0028 /* ISA DMA Frame count */ -#define PP_DmaByteCnt 0x002A /* ISA DMA Byte count */ -#define PP_CS8900_ISAMemB 0x002C /* Memory base */ -#define PP_CS8920_ISAMemB 0x0348 /* */ - -#define PP_ISABootBase 0x0030 /* Boot Prom base */ -#define PP_ISABootMask 0x0034 /* Boot Prom Mask */ - -/* EEPROM data and command registers */ -#define PP_EECMD 0x0040 /* NVR Interface Command register */ -#define PP_EEData 0x0042 /* NVR Interface Data Register */ -#define PP_DebugReg 0x0044 /* Debug Register */ - -#define PP_RxCFG 0x0102 /* Rx Bus config */ -#define PP_RxCTL 0x0104 /* Receive Control Register */ -#define PP_TxCFG 0x0106 /* Transmit Config Register */ -#define PP_TxCMD 0x0108 /* Transmit Command Register */ -#define PP_BufCFG 0x010A /* Bus configuration Register */ -#define PP_LineCTL 0x0112 /* Line Config Register */ -#define PP_SelfCTL 0x0114 /* Self Command Register */ -#define PP_BusCTL 0x0116 /* ISA bus control Register */ -#define PP_TestCTL 0x0118 /* Test Register */ -#define PP_AutoNegCTL 0x011C /* Auto Negotiation Ctrl */ - -#define PP_ISQ 0x0120 /* Interrupt Status */ -#define PP_RxEvent 0x0124 /* Rx Event Register */ -#define PP_TxEvent 0x0128 /* Tx Event Register */ -#define PP_BufEvent 0x012C /* Bus Event Register */ -#define PP_RxMiss 0x0130 /* Receive Miss Count */ -#define PP_TxCol 0x0132 /* Transmit Collision Count */ -#define PP_LineST 0x0134 /* Line State Register */ -#define PP_SelfST 0x0136 /* Self State register */ -#define PP_BusST 0x0138 /* Bus Status */ -#define PP_TDR 0x013C /* Time Domain Reflectometry */ -#define PP_AutoNegST 0x013E /* Auto Neg Status */ -#define PP_TxCommand 0x0144 /* Tx Command */ -#define PP_TxLength 0x0146 /* Tx Length */ -#define PP_LAF 0x0150 /* Hash Table */ -#define PP_IA 0x0158 /* Physical Address Register */ - -#define PP_RxStatus 0x0400 /* Receive start of frame */ -#define PP_RxLength 0x0402 /* Receive Length of frame */ -#define PP_RxFrame 0x0404 /* Receive frame pointer */ -#define PP_TxFrame 0x0A00 /* Transmit frame pointer */ - -/* Primary I/O Base Address. If no I/O base is supplied by the user, then this */ -/* can be used as the default I/O base to access the PacketPage Area. */ -#define DEFAULTIOBASE 0x0300 -#define FIRST_IO 0x020C /* First I/O port to check */ -#define LAST_IO 0x037C /* Last I/O port to check (+10h) */ -#define ADD_MASK 0x3000 /* Mask it use of the ADD_PORT register */ -#define ADD_SIG 0x3000 /* Expected ID signature */ - -/* On Macs, we only need use the ISA I/O stuff until we do MEMORY_ON */ -#ifdef CONFIG_MAC -#define LCSLOTBASE 0xfee00000 -#define MMIOBASE 0x40000 -#endif - -#define CHIP_EISA_ID_SIG 0x630E /* Product ID Code for Crystal Chip (CS8900 spec 4.3) */ -#define CHIP_EISA_ID_SIG_STR "0x630E" - -#ifdef IBMEIPKT -#define EISA_ID_SIG 0x4D24 /* IBM */ -#define PART_NO_SIG 0x1010 /* IBM */ -#define MONGOOSE_BIT 0x0000 /* IBM */ -#else -#define EISA_ID_SIG 0x630E /* PnP Vendor ID (same as chip id for Crystal board) */ -#define PART_NO_SIG 0x4000 /* ID code CS8920 board (PnP Vendor Product code) */ -#define MONGOOSE_BIT 0x2000 /* PART_NO_SIG + MONGOOSE_BUT => ID of mongoose */ -#endif - -#define PRODUCT_ID_ADD 0x0002 /* Address of product ID */ - -/* Mask to find out the types of registers */ -#define REG_TYPE_MASK 0x001F - -/* Eeprom Commands */ -#define ERSE_WR_ENBL 0x00F0 -#define ERSE_WR_DISABLE 0x0000 - -/* Defines Control/Config register quintuplet numbers */ -#define RX_BUF_CFG 0x0003 -#define RX_CONTROL 0x0005 -#define TX_CFG 0x0007 -#define TX_COMMAND 0x0009 -#define BUF_CFG 0x000B -#define LINE_CONTROL 0x0013 -#define SELF_CONTROL 0x0015 -#define BUS_CONTROL 0x0017 -#define TEST_CONTROL 0x0019 - -/* Defines Status/Count registers quintuplet numbers */ -#define RX_EVENT 0x0004 -#define TX_EVENT 0x0008 -#define BUF_EVENT 0x000C -#define RX_MISS_COUNT 0x0010 -#define TX_COL_COUNT 0x0012 -#define LINE_STATUS 0x0014 -#define SELF_STATUS 0x0016 -#define BUS_STATUS 0x0018 -#define TDR 0x001C - -/* PP_RxCFG - Receive Configuration and Interrupt Mask bit definition - Read/write */ -#define SKIP_1 0x0040 -#define RX_STREAM_ENBL 0x0080 -#define RX_OK_ENBL 0x0100 -#define RX_DMA_ONLY 0x0200 -#define AUTO_RX_DMA 0x0400 -#define BUFFER_CRC 0x0800 -#define RX_CRC_ERROR_ENBL 0x1000 -#define RX_RUNT_ENBL 0x2000 -#define RX_EXTRA_DATA_ENBL 0x4000 - -/* PP_RxCTL - Receive Control bit definition - Read/write */ -#define RX_IA_HASH_ACCEPT 0x0040 -#define RX_PROM_ACCEPT 0x0080 -#define RX_OK_ACCEPT 0x0100 -#define RX_MULTCAST_ACCEPT 0x0200 -#define RX_IA_ACCEPT 0x0400 -#define RX_BROADCAST_ACCEPT 0x0800 -#define RX_BAD_CRC_ACCEPT 0x1000 -#define RX_RUNT_ACCEPT 0x2000 -#define RX_EXTRA_DATA_ACCEPT 0x4000 -#define RX_ALL_ACCEPT (RX_PROM_ACCEPT|RX_BAD_CRC_ACCEPT|RX_RUNT_ACCEPT|RX_EXTRA_DATA_ACCEPT) -/* Default receive mode - individually addressed, broadcast, and error free */ -#define DEF_RX_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT) - -/* PP_TxCFG - Transmit Configuration Interrupt Mask bit definition - Read/write */ -#define TX_LOST_CRS_ENBL 0x0040 -#define TX_SQE_ERROR_ENBL 0x0080 -#define TX_OK_ENBL 0x0100 -#define TX_LATE_COL_ENBL 0x0200 -#define TX_JBR_ENBL 0x0400 -#define TX_ANY_COL_ENBL 0x0800 -#define TX_16_COL_ENBL 0x8000 - -/* PP_TxCMD - Transmit Command bit definition - Read-only */ -#define TX_START_4_BYTES 0x0000 -#define TX_START_64_BYTES 0x0040 -#define TX_START_128_BYTES 0x0080 -#define TX_START_ALL_BYTES 0x00C0 -#define TX_FORCE 0x0100 -#define TX_ONE_COL 0x0200 -#define TX_TWO_PART_DEFF_DISABLE 0x0400 -#define TX_NO_CRC 0x1000 -#define TX_RUNT 0x2000 - -/* PP_BufCFG - Buffer Configuration Interrupt Mask bit definition - Read/write */ -#define GENERATE_SW_INTERRUPT 0x0040 -#define RX_DMA_ENBL 0x0080 -#define READY_FOR_TX_ENBL 0x0100 -#define TX_UNDERRUN_ENBL 0x0200 -#define RX_MISS_ENBL 0x0400 -#define RX_128_BYTE_ENBL 0x0800 -#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000 -#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000 -#define RX_DEST_MATCH_ENBL 0x8000 - -/* PP_LineCTL - Line Control bit definition - Read/write */ -#define SERIAL_RX_ON 0x0040 -#define SERIAL_TX_ON 0x0080 -#define AUI_ONLY 0x0100 -#define AUTO_AUI_10BASET 0x0200 -#define MODIFIED_BACKOFF 0x0800 -#define NO_AUTO_POLARITY 0x1000 -#define TWO_PART_DEFDIS 0x2000 -#define LOW_RX_SQUELCH 0x4000 - -/* PP_SelfCTL - Software Self Control bit definition - Read/write */ -#define POWER_ON_RESET 0x0040 -#define SW_STOP 0x0100 -#define SLEEP_ON 0x0200 -#define AUTO_WAKEUP 0x0400 -#define HCB0_ENBL 0x1000 -#define HCB1_ENBL 0x2000 -#define HCB0 0x4000 -#define HCB1 0x8000 - -/* PP_BusCTL - ISA Bus Control bit definition - Read/write */ -#define RESET_RX_DMA 0x0040 -#define MEMORY_ON 0x0400 -#define DMA_BURST_MODE 0x0800 -#define IO_CHANNEL_READY_ON 0x1000 -#define RX_DMA_SIZE_64K 0x2000 -#define ENABLE_IRQ 0x8000 - -/* PP_TestCTL - Test Control bit definition - Read/write */ -#define LINK_OFF 0x0080 -#define ENDEC_LOOPBACK 0x0200 -#define AUI_LOOPBACK 0x0400 -#define BACKOFF_OFF 0x0800 -#define FDX_8900 0x4000 -#define FAST_TEST 0x8000 - -/* PP_RxEvent - Receive Event Bit definition - Read-only */ -#define RX_IA_HASHED 0x0040 -#define RX_DRIBBLE 0x0080 -#define RX_OK 0x0100 -#define RX_HASHED 0x0200 -#define RX_IA 0x0400 -#define RX_BROADCAST 0x0800 -#define RX_CRC_ERROR 0x1000 -#define RX_RUNT 0x2000 -#define RX_EXTRA_DATA 0x4000 - -#define HASH_INDEX_MASK 0x0FC00 - -/* PP_TxEvent - Transmit Event Bit definition - Read-only */ -#define TX_LOST_CRS 0x0040 -#define TX_SQE_ERROR 0x0080 -#define TX_OK 0x0100 -#define TX_LATE_COL 0x0200 -#define TX_JBR 0x0400 -#define TX_16_COL 0x8000 -#define TX_SEND_OK_BITS (TX_OK|TX_LOST_CRS) -#define TX_COL_COUNT_MASK 0x7800 - -/* PP_BufEvent - Buffer Event Bit definition - Read-only */ -#define SW_INTERRUPT 0x0040 -#define RX_DMA 0x0080 -#define READY_FOR_TX 0x0100 -#define TX_UNDERRUN 0x0200 -#define RX_MISS 0x0400 -#define RX_128_BYTE 0x0800 -#define TX_COL_OVRFLW 0x1000 -#define RX_MISS_OVRFLW 0x2000 -#define RX_DEST_MATCH 0x8000 - -/* PP_LineST - Ethernet Line Status bit definition - Read-only */ -#define LINK_OK 0x0080 -#define AUI_ON 0x0100 -#define TENBASET_ON 0x0200 -#define POLARITY_OK 0x1000 -#define CRS_OK 0x4000 - -/* PP_SelfST - Chip Software Status bit definition */ -#define ACTIVE_33V 0x0040 -#define INIT_DONE 0x0080 -#define SI_BUSY 0x0100 -#define EEPROM_PRESENT 0x0200 -#define EEPROM_OK 0x0400 -#define EL_PRESENT 0x0800 -#define EE_SIZE_64 0x1000 - -/* PP_BusST - ISA Bus Status bit definition */ -#define TX_BID_ERROR 0x0080 -#define READY_FOR_TX_NOW 0x0100 - -/* PP_AutoNegCTL - Auto Negotiation Control bit definition */ -#define RE_NEG_NOW 0x0040 -#define ALLOW_FDX 0x0080 -#define AUTO_NEG_ENABLE 0x0100 -#define NLP_ENABLE 0x0200 -#define FORCE_FDX 0x8000 -#define AUTO_NEG_BITS (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE) -#define AUTO_NEG_MASK (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE|ALLOW_FDX|RE_NEG_NOW) - -/* PP_AutoNegST - Auto Negotiation Status bit definition */ -#define AUTO_NEG_BUSY 0x0080 -#define FLP_LINK 0x0100 -#define FLP_LINK_GOOD 0x0800 -#define LINK_FAULT 0x1000 -#define HDX_ACTIVE 0x4000 -#define FDX_ACTIVE 0x8000 - -/* The following block defines the ISQ event types */ -#define ISQ_RECEIVER_EVENT 0x04 -#define ISQ_TRANSMITTER_EVENT 0x08 -#define ISQ_BUFFER_EVENT 0x0c -#define ISQ_RX_MISS_EVENT 0x10 -#define ISQ_TX_COL_EVENT 0x12 - -#define ISQ_EVENT_MASK 0x003F /* ISQ mask to find out type of event */ -#define ISQ_HIST 16 /* small history buffer */ -#define AUTOINCREMENT 0x8000 /* Bit mask to set bit-15 for autoincrement */ - -#define TXRXBUFSIZE 0x0600 -#define RXDMABUFSIZE 0x8000 -#define RXDMASIZE 0x4000 -#define TXRX_LENGTH_MASK 0x07FF - -/* rx options bits */ -#define RCV_WITH_RXON 1 /* Set SerRx ON */ -#define RCV_COUNTS 2 /* Use Framecnt1 */ -#define RCV_PONG 4 /* Pong respondent */ -#define RCV_DONG 8 /* Dong operation */ -#define RCV_POLLING 0x10 /* Poll RxEvent */ -#define RCV_ISQ 0x20 /* Use ISQ, int */ -#define RCV_AUTO_DMA 0x100 /* Set AutoRxDMAE */ -#define RCV_DMA 0x200 /* Set RxDMA only */ -#define RCV_DMA_ALL 0x400 /* Copy all DMA'ed */ -#define RCV_FIXED_DATA 0x800 /* Every frame same */ -#define RCV_IO 0x1000 /* Use ISA IO only */ -#define RCV_MEMORY 0x2000 /* Use ISA Memory */ - -#define RAM_SIZE 0x1000 /* The card has 4k bytes or RAM */ -#define PKT_START PP_TxFrame /* Start of packet RAM */ - -#define RX_FRAME_PORT 0x0000 -#define TX_FRAME_PORT RX_FRAME_PORT -#define TX_CMD_PORT 0x0004 -#define TX_NOW 0x0000 /* Tx packet after 5 bytes copied */ -#define TX_AFTER_381 0x0040 /* Tx packet after 381 bytes copied */ -#define TX_AFTER_ALL 0x00c0 /* Tx packet after all bytes copied */ -#define TX_LEN_PORT 0x0006 -#define ISQ_PORT 0x0008 -#define ADD_PORT 0x000A -#define DATA_PORT 0x000C - -#define EEPROM_WRITE_EN 0x00F0 -#define EEPROM_WRITE_DIS 0x0000 -#define EEPROM_WRITE_CMD 0x0100 -#define EEPROM_READ_CMD 0x0200 - -/* Receive Header */ -/* Description of header of each packet in receive area of memory */ -#define RBUF_EVENT_LOW 0 /* Low byte of RxEvent - status of received frame */ -#define RBUF_EVENT_HIGH 1 /* High byte of RxEvent - status of received frame */ -#define RBUF_LEN_LOW 2 /* Length of received data - low byte */ -#define RBUF_LEN_HI 3 /* Length of received data - high byte */ -#define RBUF_HEAD_LEN 4 /* Length of this header */ - -#define CHIP_READ 0x1 /* Used to mark state of the repins code (chip or dma) */ -#define DMA_READ 0x2 /* Used to mark state of the repins code (chip or dma) */ - -/* for bios scan */ -/* */ -#ifdef CSDEBUG -/* use these values for debugging bios scan */ -#define BIOS_START_SEG 0x00000 -#define BIOS_OFFSET_INC 0x0010 -#else -#define BIOS_START_SEG 0x0c000 -#define BIOS_OFFSET_INC 0x0200 -#endif - -#define BIOS_LAST_OFFSET 0x0fc00 - -/* Byte offsets into the EEPROM configuration buffer */ -#define ISA_CNF_OFFSET 0x6 -#define TX_CTL_OFFSET (ISA_CNF_OFFSET + 8) /* 8900 eeprom */ -#define AUTO_NEG_CNF_OFFSET (ISA_CNF_OFFSET + 8) /* 8920 eeprom */ - - /* the assumption here is that the bits in the eeprom are generally */ - /* in the same position as those in the autonegctl register. */ - /* Of course the IMM bit is not in that register so it must be */ - /* masked out */ -#define EE_FORCE_FDX 0x8000 -#define EE_NLP_ENABLE 0x0200 -#define EE_AUTO_NEG_ENABLE 0x0100 -#define EE_ALLOW_FDX 0x0080 -#define EE_AUTO_NEG_CNF_MASK (EE_FORCE_FDX|EE_NLP_ENABLE|EE_AUTO_NEG_ENABLE|EE_ALLOW_FDX) - -#define IMM_BIT 0x0040 /* ignore missing media */ - -#define ADAPTER_CNF_OFFSET (AUTO_NEG_CNF_OFFSET + 2) -#define A_CNF_10B_T 0x0001 -#define A_CNF_AUI 0x0002 -#define A_CNF_10B_2 0x0004 -#define A_CNF_MEDIA_TYPE 0x0070 -#define A_CNF_MEDIA_AUTO 0x0070 -#define A_CNF_MEDIA_10B_T 0x0020 -#define A_CNF_MEDIA_AUI 0x0040 -#define A_CNF_MEDIA_10B_2 0x0010 -#define A_CNF_DC_DC_POLARITY 0x0080 -#define A_CNF_NO_AUTO_POLARITY 0x2000 -#define A_CNF_LOW_RX_SQUELCH 0x4000 -#define A_CNF_EXTND_10B_2 0x8000 - -#define PACKET_PAGE_OFFSET 0x8 - -/* Bit definitions for the ISA configuration word from the EEPROM */ -#define INT_NO_MASK 0x000F -#define DMA_NO_MASK 0x0070 -#define ISA_DMA_SIZE 0x0200 -#define ISA_AUTO_RxDMA 0x0400 -#define ISA_RxDMA 0x0800 -#define DMA_BURST 0x1000 -#define STREAM_TRANSFER 0x2000 -#define ANY_ISA_DMA (ISA_AUTO_RxDMA | ISA_RxDMA) - -/* DMA controller registers */ -#define DMA_BASE 0x00 /* DMA controller base */ -#define DMA_BASE_2 0x0C0 /* DMA controller base */ - -#define DMA_STAT 0x0D0 /* DMA controller status register */ -#define DMA_MASK 0x0D4 /* DMA controller mask register */ -#define DMA_MODE 0x0D6 /* DMA controller mode register */ -#define DMA_RESETFF 0x0D8 /* DMA controller first/last flip flop */ - -/* DMA data */ -#define DMA_DISABLE 0x04 /* Disable channel n */ -#define DMA_ENABLE 0x00 /* Enable channel n */ -/* Demand transfers, incr. address, auto init, writes, ch. n */ -#define DMA_RX_MODE 0x14 -/* Demand transfers, incr. address, auto init, reads, ch. n */ -#define DMA_TX_MODE 0x18 - -#define DMA_SIZE (16*1024) /* Size of dma buffer - 16k */ - -#define CS8900 0x0000 -#define CS8920 0x4000 -#define CS8920M 0x6000 -#define REVISON_BITS 0x1F00 -#define EEVER_NUMBER 0x12 -#define CHKSUM_LEN 0x14 -#define CHKSUM_VAL 0x0000 -#define START_EEPROM_DATA 0x001c /* Offset into eeprom for start of data */ -#define IRQ_MAP_EEPROM_DATA 0x0046 /* Offset into eeprom for the IRQ map */ -#define IRQ_MAP_LEN 0x0004 /* No of bytes to read for the IRQ map */ -#define PNP_IRQ_FRMT 0x0022 /* PNP small item IRQ format */ -#define CS8900_IRQ_MAP 0x1c20 /* This IRQ map is fixed */ - -#define CS8920_NO_INTS 0x0F /* Max CS8920 interrupt select # */ - -#define PNP_ADD_PORT 0x0279 -#define PNP_WRITE_PORT 0x0A79 - -#define GET_PNP_ISA_STRUCT 0x40 -#define PNP_ISA_STRUCT_LEN 0x06 -#define PNP_CSN_CNT_OFF 0x01 -#define PNP_RD_PORT_OFF 0x02 -#define PNP_FUNCTION_OK 0x00 -#define PNP_WAKE 0x03 -#define PNP_RSRC_DATA 0x04 -#define PNP_RSRC_READY 0x01 -#define PNP_STATUS 0x05 -#define PNP_ACTIVATE 0x30 -#define PNP_CNF_IO_H 0x60 -#define PNP_CNF_IO_L 0x61 -#define PNP_CNF_INT 0x70 -#define PNP_CNF_DMA 0x74 -#define PNP_CNF_MEM 0x48 - -#define BIT0 1 -#define BIT15 0x8000 - diff --git a/drivers/net/ethernet/cirrus/Kconfig b/drivers/net/ethernet/cirrus/Kconfig index e9386ef524a..6cbb81ccc02 100644 --- a/drivers/net/ethernet/cirrus/Kconfig +++ b/drivers/net/ethernet/cirrus/Kconfig @@ -5,7 +5,8 @@ config NET_VENDOR_CIRRUS bool "Cirrus devices" default y - depends on ARM && ARCH_EP93XX + depends on ISA || EISA || MACH_IXDP2351 || ARCH_IXDP2X01 \ + || MACH_MX31ADS || MACH_QQ2440 || (ARM && ARCH_EP93XX) ---help--- If you have a network (Ethernet) card belonging to this class, say Y and read the Ethernet-HOWTO, available from @@ -18,6 +19,25 @@ config NET_VENDOR_CIRRUS if NET_VENDOR_CIRRUS +config CS89x0 + tristate "CS89x0 support" + depends on (ISA || EISA || MACH_IXDP2351 \ + || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440) + ---help--- + Support for CS89x0 chipset based Ethernet cards. If you have a + network (Ethernet) card of this type, say Y and read the + Ethernet-HOWTO, available from + as well as + . + + To compile this driver as a module, choose M here. The module + will be called cs89x0. + +config CS89x0_NONISA_IRQ + def_bool y + depends on CS89x0 != n + depends on MACH_IXDP2351 || ARCH_IXDP2X01 || MACH_MX31ADS || MACH_QQ2440 + config EP93XX_ETH tristate "EP93xx Ethernet support" depends on ARM && ARCH_EP93XX diff --git a/drivers/net/ethernet/cirrus/Makefile b/drivers/net/ethernet/cirrus/Makefile index 9905ea20f9f..14bd77e0cb5 100644 --- a/drivers/net/ethernet/cirrus/Makefile +++ b/drivers/net/ethernet/cirrus/Makefile @@ -2,4 +2,5 @@ # Makefile for the Cirrus network device drivers. # +obj-$(CONFIG_CS89x0) += cs89x0.o obj-$(CONFIG_EP93XX_ETH) += ep93xx_eth.o diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c new file mode 100644 index 00000000000..f328da24c8f --- /dev/null +++ b/drivers/net/ethernet/cirrus/cs89x0.c @@ -0,0 +1,1913 @@ +/* cs89x0.c: A Crystal Semiconductor (Now Cirrus Logic) CS89[02]0 + * driver for linux. + */ + +/* + Written 1996 by Russell Nelson, with reference to skeleton.c + written 1993-1994 by Donald Becker. + + This software may be used and distributed according to the terms + of the GNU General Public License, incorporated herein by reference. + + The author may be reached at nelson@crynwr.com, Crynwr + Software, 521 Pleasant Valley Rd., Potsdam, NY 13676 + + Changelog: + + Mike Cruse : mcruse@cti-ltd.com + : Changes for Linux 2.0 compatibility. + : Added dev_id parameter in net_interrupt(), + : request_irq() and free_irq(). Just NULL for now. + + Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros + : in net_open() and net_close() so kerneld would know + : that the module is in use and wouldn't eject the + : driver prematurely. + + Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c + : as an example. Disabled autoprobing in init_module(), + : not a good thing to do to other devices while Linux + : is running from all accounts. + + Russ Nelson : Jul 13 1998. Added RxOnly DMA support. + + Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility. + : email: ethernet@crystal.cirrus.com + + Alan Cox : Removed 1.2 support, added 2.1 extra counters. + + Andrew Morton : Kernel 2.3.48 + : Handle kmalloc() failures + : Other resource allocation fixes + : Add SMP locks + : Integrate Russ Nelson's ALLOW_DMA functionality back in. + : If ALLOW_DMA is true, make DMA runtime selectable + : Folded in changes from Cirrus (Melody Lee + : ) + : Don't call netif_wake_queue() in net_send_packet() + : Fixed an out-of-mem bug in dma_rx() + : Updated Documentation/networking/cs89x0.txt + + Andrew Morton : Kernel 2.3.99-pre1 + : Use skb_reserve to longword align IP header (two places) + : Remove a delay loop from dma_rx() + : Replace '100' with HZ + : Clean up a couple of skb API abuses + : Added 'cs89x0_dma=N' kernel boot option + : Correctly initialise lp->lock in non-module compile + + Andrew Morton : Kernel 2.3.99-pre4-1 + : MOD_INC/DEC race fix (see + : http://www.uwsg.indiana.edu/hypermail/linux/kernel/0003.3/1532.html) + + Andrew Morton : Kernel 2.4.0-test7-pre2 + : Enhanced EEPROM support to cover more devices, + : abstracted IRQ mapping to support CONFIG_ARCH_CLPS7500 arch + : (Jason Gunthorpe ) + + Andrew Morton : Kernel 2.4.0-test11-pre4 + : Use dev->name in request_*() (Andrey Panin) + : Fix an error-path memleak in init_module() + : Preserve return value from request_irq() + : Fix type of `media' module parm (Keith Owens) + : Use SET_MODULE_OWNER() + : Tidied up strange request_irq() abuse in net_open(). + + Andrew Morton : Kernel 2.4.3-pre1 + : Request correct number of pages for DMA (Hugh Dickens) + : Select PP_ChipID _after_ unregister_netdev in cleanup_module() + : because unregister_netdev() calls get_stats. + : Make `version[]' __initdata + : Uninlined the read/write reg/word functions. + + Oskar Schirmer : oskar@scara.com + : HiCO.SH4 (superh) support added (irq#1, cs89x0_media=) + + Deepak Saxena : dsaxena@plexity.net + : Intel IXDP2x01 (XScale ixp2x00 NPU) platform support + + Dmitry Pervushin : dpervushin@ru.mvista.com + : PNX010X platform support + + Deepak Saxena : dsaxena@plexity.net + : Intel IXDP2351 platform support + + Dmitry Pervushin : dpervushin@ru.mvista.com + : PNX010X platform support + + Domenico Andreoli : cavokz@gmail.com + : QQ2440 platform support + +*/ + +/* Always include 'config.h' first in case the user wants to turn on + or override something. */ +#include + +/* + * Set this to zero to disable DMA code + * + * Note that even if DMA is turned off we still support the 'dma' and 'use_dma' + * module options so we don't break any startup scripts. + */ +#ifndef CONFIG_ISA_DMA_API +#define ALLOW_DMA 0 +#else +#define ALLOW_DMA 1 +#endif + +/* + * Set this to zero to remove all the debug statements via + * dead code elimination + */ +#define DEBUGGING 1 + +/* + Sources: + + Crynwr packet driver epktisa. + + Crystal Semiconductor data sheets. + +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#if ALLOW_DMA +#include +#endif + +#include "cs89x0.h" + +static char version[] __initdata = +"cs89x0.c: v2.4.3-pre1 Russell Nelson , Andrew Morton\n"; + +#define DRV_NAME "cs89x0" + +/* First, a few definitions that the brave might change. + A zero-terminated list of I/O addresses to be probed. Some special flags.. + Addr & 1 = Read back the address port, look for signature and reset + the page window before probing + Addr & 3 = Reset the page window and probe + The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space, + but it is possible that a Cirrus board could be plugged into the ISA + slots. */ +/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps + them to system IRQ numbers. This mapping is card specific and is set to + the configuration of the Cirrus Eval board for this chip. */ +#if defined(CONFIG_MACH_IXDP2351) +static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0}; +static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0}; +#elif defined(CONFIG_ARCH_IXDP2X01) +static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0}; +static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0}; +#elif defined(CONFIG_MACH_QQ2440) +#include +static unsigned int netcard_portlist[] __used __initdata = { QQ2440_CS8900_VIRT_BASE + 0x300, 0 }; +static unsigned int cs8900_irq_map[] = { QQ2440_CS8900_IRQ, 0, 0, 0 }; +#elif defined(CONFIG_MACH_MX31ADS) +#include +static unsigned int netcard_portlist[] __used __initdata = { + PBC_BASE_ADDRESS + PBC_CS8900A_IOBASE + 0x300, 0 +}; +static unsigned cs8900_irq_map[] = {EXPIO_INT_ENET_INT, 0, 0, 0}; +#else +static unsigned int netcard_portlist[] __used __initdata = + { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0}; +static unsigned int cs8900_irq_map[] = {10,11,12,5}; +#endif + +#if DEBUGGING +static unsigned int net_debug = DEBUGGING; +#else +#define net_debug 0 /* gcc will remove all the debug code for us */ +#endif + +/* The number of low I/O ports used by the ethercard. */ +#define NETCARD_IO_EXTENT 16 + +/* we allow the user to override various values normally set in the EEPROM */ +#define FORCE_RJ45 0x0001 /* pick one of these three */ +#define FORCE_AUI 0x0002 +#define FORCE_BNC 0x0004 + +#define FORCE_AUTO 0x0010 /* pick one of these three */ +#define FORCE_HALF 0x0020 +#define FORCE_FULL 0x0030 + +/* Information that need to be kept for each board. */ +struct net_local { + int chip_type; /* one of: CS8900, CS8920, CS8920M */ + char chip_revision; /* revision letter of the chip ('A'...) */ + int send_cmd; /* the proper send command: TX_NOW, TX_AFTER_381, or TX_AFTER_ALL */ + int auto_neg_cnf; /* auto-negotiation word from EEPROM */ + int adapter_cnf; /* adapter configuration from EEPROM */ + int isa_config; /* ISA configuration from EEPROM */ + int irq_map; /* IRQ map from EEPROM */ + int rx_mode; /* what mode are we in? 0, RX_MULTCAST_ACCEPT, or RX_ALL_ACCEPT */ + int curr_rx_cfg; /* a copy of PP_RxCFG */ + int linectl; /* either 0 or LOW_RX_SQUELCH, depending on configuration. */ + int send_underrun; /* keep track of how many underruns in a row we get */ + int force; /* force various values; see FORCE* above. */ + spinlock_t lock; +#if ALLOW_DMA + int use_dma; /* Flag: we're using dma */ + int dma; /* DMA channel */ + int dmasize; /* 16 or 64 */ + unsigned char *dma_buff; /* points to the beginning of the buffer */ + unsigned char *end_dma_buff; /* points to the end of the buffer */ + unsigned char *rx_dma_ptr; /* points to the next packet */ +#endif +}; + +/* Index to functions, as function prototypes. */ + +static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular); +static int net_open(struct net_device *dev); +static netdev_tx_t net_send_packet(struct sk_buff *skb, struct net_device *dev); +static irqreturn_t net_interrupt(int irq, void *dev_id); +static void set_multicast_list(struct net_device *dev); +static void net_timeout(struct net_device *dev); +static void net_rx(struct net_device *dev); +static int net_close(struct net_device *dev); +static struct net_device_stats *net_get_stats(struct net_device *dev); +static void reset_chip(struct net_device *dev); +static int get_eeprom_data(struct net_device *dev, int off, int len, int *buffer); +static int get_eeprom_cksum(int off, int len, int *buffer); +static int set_mac_address(struct net_device *dev, void *addr); +static void count_rx_errors(int status, struct net_device *dev); +#ifdef CONFIG_NET_POLL_CONTROLLER +static void net_poll_controller(struct net_device *dev); +#endif +#if ALLOW_DMA +static void get_dma_channel(struct net_device *dev); +static void release_dma_buff(struct net_local *lp); +#endif + +/* Example routines you must write ;->. */ +#define tx_done(dev) 1 + +/* + * Permit 'cs89x0_dma=N' in the kernel boot environment + */ +#if !defined(MODULE) && (ALLOW_DMA != 0) +static int g_cs89x0_dma; + +static int __init dma_fn(char *str) +{ + g_cs89x0_dma = simple_strtol(str,NULL,0); + return 1; +} + +__setup("cs89x0_dma=", dma_fn); +#endif /* !defined(MODULE) && (ALLOW_DMA != 0) */ + +#ifndef MODULE +static int g_cs89x0_media__force; + +static int __init media_fn(char *str) +{ + if (!strcmp(str, "rj45")) g_cs89x0_media__force = FORCE_RJ45; + else if (!strcmp(str, "aui")) g_cs89x0_media__force = FORCE_AUI; + else if (!strcmp(str, "bnc")) g_cs89x0_media__force = FORCE_BNC; + return 1; +} + +__setup("cs89x0_media=", media_fn); + + +/* Check for a network adaptor of this type, and return '0' iff one exists. + If dev->base_addr == 0, probe all likely locations. + If dev->base_addr == 1, always return failure. + If dev->base_addr == 2, allocate space for the device and return success + (detachable devices only). + Return 0 on success. + */ + +struct net_device * __init cs89x0_probe(int unit) +{ + struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); + unsigned *port; + int err = 0; + int irq; + int io; + + if (!dev) + return ERR_PTR(-ENODEV); + + sprintf(dev->name, "eth%d", unit); + netdev_boot_setup_check(dev); + io = dev->base_addr; + irq = dev->irq; + + if (net_debug) + printk("cs89x0:cs89x0_probe(0x%x)\n", io); + + if (io > 0x1ff) { /* Check a single specified location. */ + err = cs89x0_probe1(dev, io, 0); + } else if (io != 0) { /* Don't probe at all. */ + err = -ENXIO; + } else { + for (port = netcard_portlist; *port; port++) { + if (cs89x0_probe1(dev, *port, 0) == 0) + break; + dev->irq = irq; + } + if (!*port) + err = -ENODEV; + } + if (err) + goto out; + return dev; +out: + free_netdev(dev); + printk(KERN_WARNING "cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP\n"); + return ERR_PTR(err); +} +#endif + +#if defined(CONFIG_MACH_IXDP2351) +static u16 +readword(unsigned long base_addr, int portno) +{ + return __raw_readw(base_addr + (portno << 1)); +} + +static void +writeword(unsigned long base_addr, int portno, u16 value) +{ + __raw_writew(value, base_addr + (portno << 1)); +} +#elif defined(CONFIG_ARCH_IXDP2X01) +static u16 +readword(unsigned long base_addr, int portno) +{ + return __raw_readl(base_addr + (portno << 1)); +} + +static void +writeword(unsigned long base_addr, int portno, u16 value) +{ + __raw_writel(value, base_addr + (portno << 1)); +} +#else +static u16 +readword(unsigned long base_addr, int portno) +{ + return inw(base_addr + portno); +} + +static void +writeword(unsigned long base_addr, int portno, u16 value) +{ + outw(value, base_addr + portno); +} +#endif + +static void +readwords(unsigned long base_addr, int portno, void *buf, int length) +{ + u8 *buf8 = (u8 *)buf; + + do { + u16 tmp16; + + tmp16 = readword(base_addr, portno); + *buf8++ = (u8)tmp16; + *buf8++ = (u8)(tmp16 >> 8); + } while (--length); +} + +static void +writewords(unsigned long base_addr, int portno, void *buf, int length) +{ + u8 *buf8 = (u8 *)buf; + + do { + u16 tmp16; + + tmp16 = *buf8++; + tmp16 |= (*buf8++) << 8; + writeword(base_addr, portno, tmp16); + } while (--length); +} + +static u16 +readreg(struct net_device *dev, u16 regno) +{ + writeword(dev->base_addr, ADD_PORT, regno); + return readword(dev->base_addr, DATA_PORT); +} + +static void +writereg(struct net_device *dev, u16 regno, u16 value) +{ + writeword(dev->base_addr, ADD_PORT, regno); + writeword(dev->base_addr, DATA_PORT, value); +} + +static int __init +wait_eeprom_ready(struct net_device *dev) +{ + int timeout = jiffies; + /* check to see if the EEPROM is ready, a timeout is used - + just in case EEPROM is ready when SI_BUSY in the + PP_SelfST is clear */ + while(readreg(dev, PP_SelfST) & SI_BUSY) + if (jiffies - timeout >= 40) + return -1; + return 0; +} + +static int __init +get_eeprom_data(struct net_device *dev, int off, int len, int *buffer) +{ + int i; + + if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len); + for (i = 0; i < len; i++) { + if (wait_eeprom_ready(dev) < 0) return -1; + /* Now send the EEPROM read command and EEPROM location to read */ + writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD); + if (wait_eeprom_ready(dev) < 0) return -1; + buffer[i] = readreg(dev, PP_EEData); + if (net_debug > 3) printk("%04x ", buffer[i]); + } + if (net_debug > 3) printk("\n"); + return 0; +} + +static int __init +get_eeprom_cksum(int off, int len, int *buffer) +{ + int i, cksum; + + cksum = 0; + for (i = 0; i < len; i++) + cksum += buffer[i]; + cksum &= 0xffff; + if (cksum == 0) + return 0; + return -1; +} + +#ifdef CONFIG_NET_POLL_CONTROLLER +/* + * Polling receive - used by netconsole and other diagnostic tools + * to allow network i/o with interrupts disabled. + */ +static void net_poll_controller(struct net_device *dev) +{ + disable_irq(dev->irq); + net_interrupt(dev->irq, dev); + enable_irq(dev->irq); +} +#endif + +static const struct net_device_ops net_ops = { + .ndo_open = net_open, + .ndo_stop = net_close, + .ndo_tx_timeout = net_timeout, + .ndo_start_xmit = net_send_packet, + .ndo_get_stats = net_get_stats, + .ndo_set_rx_mode = set_multicast_list, + .ndo_set_mac_address = set_mac_address, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = net_poll_controller, +#endif + .ndo_change_mtu = eth_change_mtu, + .ndo_validate_addr = eth_validate_addr, +}; + +/* This is the real probe routine. Linux has a history of friendly device + probes on the ISA bus. A good device probes avoids doing writes, and + verifies that the correct device exists and functions. + Return 0 on success. + */ + +static int __init +cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) +{ + struct net_local *lp = netdev_priv(dev); + static unsigned version_printed; + int i; + int tmp; + unsigned rev_type = 0; + int eeprom_buff[CHKSUM_LEN]; + int retval; + + /* Initialize the device structure. */ + if (!modular) { + memset(lp, 0, sizeof(*lp)); + spin_lock_init(&lp->lock); +#ifndef MODULE +#if ALLOW_DMA + if (g_cs89x0_dma) { + lp->use_dma = 1; + lp->dma = g_cs89x0_dma; + lp->dmasize = 16; /* Could make this an option... */ + } +#endif + lp->force = g_cs89x0_media__force; +#endif + +#if defined(CONFIG_MACH_QQ2440) + lp->force |= FORCE_RJ45 | FORCE_FULL; +#endif + } + + /* Grab the region so we can find another board if autoIRQ fails. */ + /* WTF is going on here? */ + if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) { + printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n", + DRV_NAME, ioaddr, NETCARD_IO_EXTENT); + retval = -EBUSY; + goto out1; + } + + /* if they give us an odd I/O address, then do ONE write to + the address port, to get it back to address zero, where we + expect to find the EISA signature word. An IO with a base of 0x3 + will skip the test for the ADD_PORT. */ + if (ioaddr & 1) { + if (net_debug > 1) + printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr); + if ((ioaddr & 2) != 2) + if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) { + printk(KERN_ERR "%s: bad signature 0x%x\n", + dev->name, readword(ioaddr & ~3, ADD_PORT)); + retval = -ENODEV; + goto out2; + } + } + + ioaddr &= ~3; + printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n", + ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT)); + writeword(ioaddr, ADD_PORT, PP_ChipID); + + tmp = readword(ioaddr, DATA_PORT); + if (tmp != CHIP_EISA_ID_SIG) { + printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!=" + CHIP_EISA_ID_SIG_STR "\n", + dev->name, ioaddr, DATA_PORT, tmp); + retval = -ENODEV; + goto out2; + } + + /* Fill in the 'dev' fields. */ + dev->base_addr = ioaddr; + + /* get the chip type */ + rev_type = readreg(dev, PRODUCT_ID_ADD); + lp->chip_type = rev_type &~ REVISON_BITS; + lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; + + /* Check the chip type and revision in order to set the correct send command + CS8920 revision C and CS8900 revision F can use the faster send. */ + lp->send_cmd = TX_AFTER_381; + if (lp->chip_type == CS8900 && lp->chip_revision >= 'F') + lp->send_cmd = TX_NOW; + if (lp->chip_type != CS8900 && lp->chip_revision >= 'C') + lp->send_cmd = TX_NOW; + + if (net_debug && version_printed++ == 0) + printk(version); + + printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ", + dev->name, + lp->chip_type==CS8900?'0':'2', + lp->chip_type==CS8920M?"M":"", + lp->chip_revision, + dev->base_addr); + + reset_chip(dev); + + /* Here we read the current configuration of the chip. If there + is no Extended EEPROM then the idea is to not disturb the chip + configuration, it should have been correctly setup by automatic + EEPROM read on reset. So, if the chip says it read the EEPROM + the driver will always do *something* instead of complain that + adapter_cnf is 0. */ + + + if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == + (EEPROM_OK|EEPROM_PRESENT)) { + /* Load the MAC. */ + for (i=0; i < ETH_ALEN/2; i++) { + unsigned int Addr; + Addr = readreg(dev, PP_IA+i*2); + dev->dev_addr[i*2] = Addr & 0xFF; + dev->dev_addr[i*2+1] = Addr >> 8; + } + + /* Load the Adapter Configuration. + Note: Barring any more specific information from some + other source (ie EEPROM+Schematics), we would not know + how to operate a 10Base2 interface on the AUI port. + However, since we do read the status of HCB1 and use + settings that always result in calls to control_dc_dc(dev,0) + a BNC interface should work if the enable pin + (dc/dc converter) is on HCB1. It will be called AUI + however. */ + + lp->adapter_cnf = 0; + i = readreg(dev, PP_LineCTL); + /* Preserve the setting of the HCB1 pin. */ + if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL)) + lp->adapter_cnf |= A_CNF_DC_DC_POLARITY; + /* Save the sqelch bit */ + if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH) + lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH; + /* Check if the card is in 10Base-t only mode */ + if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0) + lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T; + /* Check if the card is in AUI only mode */ + if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY) + lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI; + /* Check if the card is in Auto mode. */ + if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET) + lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | + A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO; + + if (net_debug > 1) + printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n", + dev->name, i, lp->adapter_cnf); + + /* IRQ. Other chips already probe, see below. */ + if (lp->chip_type == CS8900) + lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK; + + printk( "[Cirrus EEPROM] "); + } + + printk("\n"); + + /* First check to see if an EEPROM is attached. */ + + if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0) + printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n"); + else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { + printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n"); + } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { + /* Check if the chip was able to read its own configuration starting + at 0 in the EEPROM*/ + if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) != + (EEPROM_OK|EEPROM_PRESENT)) + printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n"); + + } else { + /* This reads an extended EEPROM that is not documented + in the CS8900 datasheet. */ + + /* get transmission control word but keep the autonegotiation bits */ + if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; + /* Store adapter configuration */ + if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2]; + /* Store ISA configuration */ + lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2]; + dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8; + + /* eeprom_buff has 32-bit ints, so we can't just memcpy it */ + /* store the initial memory base address */ + for (i = 0; i < ETH_ALEN/2; i++) { + dev->dev_addr[i*2] = eeprom_buff[i]; + dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8; + } + if (net_debug > 1) + printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n", + dev->name, lp->adapter_cnf); + } + + /* allow them to force multiple transceivers. If they force multiple, autosense */ + { + int count = 0; + if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; } + if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; } + if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; } + if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; } + else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; } + else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; } + else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; } + } + + if (net_debug > 1) + printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n", + dev->name, lp->force, lp->adapter_cnf); + + /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */ + + /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */ + + /* FIXME: we don't set the Ethernet address on the command line. Use + ifconfig IFACE hw ether AABBCCDDEEFF */ + + printk(KERN_INFO "cs89x0 media %s%s%s", + (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"", + (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"", + (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":""); + + lp->irq_map = 0xffff; + + /* If this is a CS8900 then no pnp soft */ + if (lp->chip_type != CS8900 && + /* Check if the ISA IRQ has been set */ + (i = readreg(dev, PP_CS8920_ISAINT) & 0xff, + (i != 0 && i < CS8920_NO_INTS))) { + if (!dev->irq) + dev->irq = i; + } else { + i = lp->isa_config & INT_NO_MASK; + if (lp->chip_type == CS8900) { +#ifdef CONFIG_CS89x0_NONISA_IRQ + i = cs8900_irq_map[0]; +#else + /* Translate the IRQ using the IRQ mapping table. */ + if (i >= ARRAY_SIZE(cs8900_irq_map)) + printk("\ncs89x0: invalid ISA interrupt number %d\n", i); + else + i = cs8900_irq_map[i]; + + lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */ + } else { + int irq_map_buff[IRQ_MAP_LEN/2]; + + if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA, + IRQ_MAP_LEN/2, + irq_map_buff) >= 0) { + if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT) + lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8); + } +#endif + } + if (!dev->irq) + dev->irq = i; + } + + printk(" IRQ %d", dev->irq); + +#if ALLOW_DMA + if (lp->use_dma) { + get_dma_channel(dev); + printk(", DMA %d", dev->dma); + } + else +#endif + { + printk(", programmed I/O"); + } + + /* print the ethernet address. */ + printk(", MAC %pM", dev->dev_addr); + + dev->netdev_ops = &net_ops; + dev->watchdog_timeo = HZ; + + printk("\n"); + if (net_debug) + printk("cs89x0_probe1() successful\n"); + + retval = register_netdev(dev); + if (retval) + goto out3; + return 0; +out3: + writeword(dev->base_addr, ADD_PORT, PP_ChipID); +out2: + release_region(ioaddr & ~3, NETCARD_IO_EXTENT); +out1: + return retval; +} + + +/********************************* + * This page contains DMA routines +**********************************/ + +#if ALLOW_DMA + +#define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17) + +static void +get_dma_channel(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + + if (lp->dma) { + dev->dma = lp->dma; + lp->isa_config |= ISA_RxDMA; + } else { + if ((lp->isa_config & ANY_ISA_DMA) == 0) + return; + dev->dma = lp->isa_config & DMA_NO_MASK; + if (lp->chip_type == CS8900) + dev->dma += 5; + if (dev->dma < 5 || dev->dma > 7) { + lp->isa_config &= ~ANY_ISA_DMA; + return; + } + } +} + +static void +write_dma(struct net_device *dev, int chip_type, int dma) +{ + struct net_local *lp = netdev_priv(dev); + if ((lp->isa_config & ANY_ISA_DMA) == 0) + return; + if (chip_type == CS8900) { + writereg(dev, PP_CS8900_ISADMA, dma-5); + } else { + writereg(dev, PP_CS8920_ISADMA, dma); + } +} + +static void +set_dma_cfg(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + + if (lp->use_dma) { + if ((lp->isa_config & ANY_ISA_DMA) == 0) { + if (net_debug > 3) + printk("set_dma_cfg(): no DMA\n"); + return; + } + if (lp->isa_config & ISA_RxDMA) { + lp->curr_rx_cfg |= RX_DMA_ONLY; + if (net_debug > 3) + printk("set_dma_cfg(): RX_DMA_ONLY\n"); + } else { + lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */ + if (net_debug > 3) + printk("set_dma_cfg(): AUTO_RX_DMA\n"); + } + } +} + +static int +dma_bufcfg(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + if (lp->use_dma) + return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0; + else + return 0; +} + +static int +dma_busctl(struct net_device *dev) +{ + int retval = 0; + struct net_local *lp = netdev_priv(dev); + if (lp->use_dma) { + if (lp->isa_config & ANY_ISA_DMA) + retval |= RESET_RX_DMA; /* Reset the DMA pointer */ + if (lp->isa_config & DMA_BURST) + retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */ + if (lp->dmasize == 64) + retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */ + retval |= MEMORY_ON; /* we need memory enabled to use DMA. */ + } + return retval; +} + +static void +dma_rx(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + struct sk_buff *skb; + int status, length; + unsigned char *bp = lp->rx_dma_ptr; + + status = bp[0] + (bp[1]<<8); + length = bp[2] + (bp[3]<<8); + bp += 4; + if (net_debug > 5) { + printk( "%s: receiving DMA packet at %lx, status %x, length %x\n", + dev->name, (unsigned long)bp, status, length); + } + if ((status & RX_OK) == 0) { + count_rx_errors(status, dev); + goto skip_this_frame; + } + + /* Malloc up new buffer. */ + skb = dev_alloc_skb(length + 2); + if (skb == NULL) { + if (net_debug) /* I don't think we want to do this to a stressed system */ + printk("%s: Memory squeeze, dropping packet.\n", dev->name); + dev->stats.rx_dropped++; + + /* AKPM: advance bp to the next frame */ +skip_this_frame: + bp += (length + 3) & ~3; + if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; + lp->rx_dma_ptr = bp; + return; + } + skb_reserve(skb, 2); /* longword align L3 header */ + + if (bp + length > lp->end_dma_buff) { + int semi_cnt = lp->end_dma_buff - bp; + memcpy(skb_put(skb,semi_cnt), bp, semi_cnt); + memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff, + length - semi_cnt); + } else { + memcpy(skb_put(skb,length), bp, length); + } + bp += (length + 3) & ~3; + if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; + lp->rx_dma_ptr = bp; + + if (net_debug > 3) { + printk( "%s: received %d byte DMA packet of type %x\n", + dev->name, length, + (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); + } + skb->protocol=eth_type_trans(skb,dev); + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += length; +} + +#endif /* ALLOW_DMA */ + +static void __init reset_chip(struct net_device *dev) +{ +#if !defined(CONFIG_MACH_MX31ADS) +#if !defined(CS89x0_NONISA_IRQ) + struct net_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; +#endif /* CS89x0_NONISA_IRQ */ + int reset_start_time; + + writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET); + + /* wait 30 ms */ + msleep(30); + +#if !defined(CS89x0_NONISA_IRQ) + if (lp->chip_type != CS8900) { + /* Hardware problem requires PNP registers to be reconfigured after a reset */ + writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT); + outb(dev->irq, ioaddr + DATA_PORT); + outb(0, ioaddr + DATA_PORT + 1); + + writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB); + outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT); + outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1); + } +#endif /* CS89x0_NONISA_IRQ */ + + /* Wait until the chip is reset */ + reset_start_time = jiffies; + while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2) + ; +#endif /* !CONFIG_MACH_MX31ADS */ +} + + +static void +control_dc_dc(struct net_device *dev, int on_not_off) +{ + struct net_local *lp = netdev_priv(dev); + unsigned int selfcontrol; + int timenow = jiffies; + /* control the DC to DC convertor in the SelfControl register. + Note: This is hooked up to a general purpose pin, might not + always be a DC to DC convertor. */ + + selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */ + if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off) + selfcontrol |= HCB1; + else + selfcontrol &= ~HCB1; + writereg(dev, PP_SelfCTL, selfcontrol); + + /* Wait for the DC/DC converter to power up - 500ms */ + while (jiffies - timenow < HZ) + ; +} + +#define DETECTED_NONE 0 +#define DETECTED_RJ45H 1 +#define DETECTED_RJ45F 2 +#define DETECTED_AUI 3 +#define DETECTED_BNC 4 + +static int +detect_tp(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + int timenow = jiffies; + int fdx; + + if (net_debug > 1) printk("%s: Attempting TP\n", dev->name); + + /* If connected to another full duplex capable 10-Base-T card the link pulses + seem to be lost when the auto detect bit in the LineCTL is set. + To overcome this the auto detect bit will be cleared whilst testing the + 10-Base-T interface. This would not be necessary for the sparrow chip but + is simpler to do it anyway. */ + writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY); + control_dc_dc(dev, 0); + + /* Delay for the hardware to work out if the TP cable is present - 150ms */ + for (timenow = jiffies; jiffies - timenow < 15; ) + ; + if ((readreg(dev, PP_LineST) & LINK_OK) == 0) + return DETECTED_NONE; + + if (lp->chip_type == CS8900) { + switch (lp->force & 0xf0) { +#if 0 + case FORCE_AUTO: + printk("%s: cs8900 doesn't autonegotiate\n",dev->name); + return DETECTED_NONE; +#endif + /* CS8900 doesn't support AUTO, change to HALF*/ + case FORCE_AUTO: + lp->force &= ~FORCE_AUTO; + lp->force |= FORCE_HALF; + break; + case FORCE_HALF: + break; + case FORCE_FULL: + writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900); + break; + } + fdx = readreg(dev, PP_TestCTL) & FDX_8900; + } else { + switch (lp->force & 0xf0) { + case FORCE_AUTO: + lp->auto_neg_cnf = AUTO_NEG_ENABLE; + break; + case FORCE_HALF: + lp->auto_neg_cnf = 0; + break; + case FORCE_FULL: + lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX; + break; + } + + writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK); + + if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) { + printk(KERN_INFO "%s: negotiating duplex...\n",dev->name); + while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) { + if (jiffies - timenow > 4000) { + printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n"); + break; + } + } + } + fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE; + } + if (fdx) + return DETECTED_RJ45F; + else + return DETECTED_RJ45H; +} + +/* send a test packet - return true if carrier bits are ok */ +static int +send_test_pkt(struct net_device *dev) +{ + char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0, + 0, 46, /* A 46 in network order */ + 0, 0, /* DSAP=0 & SSAP=0 fields */ + 0xf3, 0 /* Control (Test Req + P bit set) */ }; + long timenow = jiffies; + + writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON); + + memcpy(test_packet, dev->dev_addr, ETH_ALEN); + memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN); + + writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL); + writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN); + + /* Test to see if the chip has allocated memory for the packet */ + while (jiffies - timenow < 5) + if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW) + break; + if (jiffies - timenow >= 5) + return 0; /* this shouldn't happen */ + + /* Write the contents of the packet */ + writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1); + + if (net_debug > 1) printk("Sending test packet "); + /* wait a couple of jiffies for packet to be received */ + for (timenow = jiffies; jiffies - timenow < 3; ) + ; + if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) { + if (net_debug > 1) printk("succeeded\n"); + return 1; + } + if (net_debug > 1) printk("failed\n"); + return 0; +} + + +static int +detect_aui(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + + if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name); + control_dc_dc(dev, 0); + + writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); + + if (send_test_pkt(dev)) + return DETECTED_AUI; + else + return DETECTED_NONE; +} + +static int +detect_bnc(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + + if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name); + control_dc_dc(dev, 1); + + writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); + + if (send_test_pkt(dev)) + return DETECTED_BNC; + else + return DETECTED_NONE; +} + + +static void +write_irq(struct net_device *dev, int chip_type, int irq) +{ + int i; + + if (chip_type == CS8900) { + /* Search the mapping table for the corresponding IRQ pin. */ + for (i = 0; i != ARRAY_SIZE(cs8900_irq_map); i++) + if (cs8900_irq_map[i] == irq) + break; + /* Not found */ + if (i == ARRAY_SIZE(cs8900_irq_map)) + i = 3; + writereg(dev, PP_CS8900_ISAINT, i); + } else { + writereg(dev, PP_CS8920_ISAINT, irq); + } +} + +/* Open/initialize the board. This is called (in the current kernel) + 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. + */ + +/* AKPM: do we need to do any locking here? */ + +static int +net_open(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + int result = 0; + int i; + int ret; + + if (dev->irq < 2) { + /* Allow interrupts to be generated by the chip */ +/* Cirrus' release had this: */ +#if 0 + writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); +#endif +/* And 2.3.47 had this: */ + writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); + + for (i = 2; i < CS8920_NO_INTS; i++) { + if ((1 << i) & lp->irq_map) { + if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) { + dev->irq = i; + write_irq(dev, lp->chip_type, i); + /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */ + break; + } + } + } + + if (i >= CS8920_NO_INTS) { + writereg(dev, PP_BusCTL, 0); /* disable interrupts. */ + printk(KERN_ERR "cs89x0: can't get an interrupt\n"); + ret = -EAGAIN; + goto bad_out; + } + } + else + { +#ifndef CONFIG_CS89x0_NONISA_IRQ + if (((1 << dev->irq) & lp->irq_map) == 0) { + printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n", + dev->name, dev->irq, lp->irq_map); + ret = -EAGAIN; + goto bad_out; + } +#endif +/* FIXME: Cirrus' release had this: */ + writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); +/* And 2.3.47 had this: */ +#if 0 + writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); +#endif + write_irq(dev, lp->chip_type, dev->irq); + ret = request_irq(dev->irq, net_interrupt, 0, dev->name, dev); + if (ret) { + printk(KERN_ERR "cs89x0: request_irq(%d) failed\n", dev->irq); + goto bad_out; + } + } + +#if ALLOW_DMA + if (lp->use_dma) { + if (lp->isa_config & ANY_ISA_DMA) { + unsigned long flags; + lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL, + get_order(lp->dmasize * 1024)); + + if (!lp->dma_buff) { + printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize); + goto release_irq; + } + if (net_debug > 1) { + printk( "%s: dma %lx %lx\n", + dev->name, + (unsigned long)lp->dma_buff, + (unsigned long)isa_virt_to_bus(lp->dma_buff)); + } + if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS || + !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) { + printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name); + goto release_irq; + } + memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */ + if (request_dma(dev->dma, dev->name)) { + printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma); + goto release_irq; + } + write_dma(dev, lp->chip_type, dev->dma); + lp->rx_dma_ptr = lp->dma_buff; + lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024; + spin_lock_irqsave(&lp->lock, flags); + disable_dma(dev->dma); + clear_dma_ff(dev->dma); + set_dma_mode(dev->dma, DMA_RX_MODE); /* auto_init as well */ + set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff)); + set_dma_count(dev->dma, lp->dmasize*1024); + enable_dma(dev->dma); + spin_unlock_irqrestore(&lp->lock, flags); + } + } +#endif /* ALLOW_DMA */ + + /* set the Ethernet address */ + for (i=0; i < ETH_ALEN/2; i++) + writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); + + /* while we're testing the interface, leave interrupts disabled */ + writereg(dev, PP_BusCTL, MEMORY_ON); + + /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */ + if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) + lp->linectl = LOW_RX_SQUELCH; + else + lp->linectl = 0; + + /* check to make sure that they have the "right" hardware available */ + switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { + case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break; + case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break; + case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break; + default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2); + } + if (!result) { + printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name); +release_dma: +#if ALLOW_DMA + free_dma(dev->dma); +release_irq: + release_dma_buff(lp); +#endif + writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON)); + free_irq(dev->irq, dev); + ret = -EAGAIN; + goto bad_out; + } + + /* set the hardware to the configured choice */ + switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { + case A_CNF_MEDIA_10B_T: + result = detect_tp(dev); + if (result==DETECTED_NONE) { + printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name); + if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ + result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */ + } + break; + case A_CNF_MEDIA_AUI: + result = detect_aui(dev); + if (result==DETECTED_NONE) { + printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name); + if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ + result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */ + } + break; + case A_CNF_MEDIA_10B_2: + result = detect_bnc(dev); + if (result==DETECTED_NONE) { + printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name); + if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ + result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */ + } + break; + case A_CNF_MEDIA_AUTO: + writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET); + if (lp->adapter_cnf & A_CNF_10B_T) + if ((result = detect_tp(dev)) != DETECTED_NONE) + break; + if (lp->adapter_cnf & A_CNF_AUI) + if ((result = detect_aui(dev)) != DETECTED_NONE) + break; + if (lp->adapter_cnf & A_CNF_10B_2) + if ((result = detect_bnc(dev)) != DETECTED_NONE) + break; + printk(KERN_ERR "%s: no media detected\n", dev->name); + goto release_dma; + } + switch(result) { + case DETECTED_NONE: + printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name); + goto release_dma; + case DETECTED_RJ45H: + printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name); + break; + case DETECTED_RJ45F: + printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name); + break; + case DETECTED_AUI: + printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name); + break; + case DETECTED_BNC: + printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name); + break; + } + + /* Turn on both receive and transmit operations */ + writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); + + /* Receive only error free packets addressed to this card */ + lp->rx_mode = 0; + writereg(dev, PP_RxCTL, DEF_RX_ACCEPT); + + lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL; + + if (lp->isa_config & STREAM_TRANSFER) + lp->curr_rx_cfg |= RX_STREAM_ENBL; +#if ALLOW_DMA + set_dma_cfg(dev); +#endif + writereg(dev, PP_RxCFG, lp->curr_rx_cfg); + + writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL | + TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); + + writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL | +#if ALLOW_DMA + dma_bufcfg(dev) | +#endif + TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL); + + /* now that we've got our act together, enable everything */ + writereg(dev, PP_BusCTL, ENABLE_IRQ + | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */ +#if ALLOW_DMA + | dma_busctl(dev) +#endif + ); + netif_start_queue(dev); + if (net_debug > 1) + printk("cs89x0: net_open() succeeded\n"); + return 0; +bad_out: + return ret; +} + +static void net_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. */ + if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name, + tx_done(dev) ? "IRQ conflict ?" : "network cable problem"); + /* Try to restart the adaptor. */ + netif_wake_queue(dev); +} + +static netdev_tx_t net_send_packet(struct sk_buff *skb,struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + unsigned long flags; + + if (net_debug > 3) { + printk("%s: sent %d byte packet of type %x\n", + dev->name, skb->len, + (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); + } + + /* keep the upload from being interrupted, since we + ask the chip to start transmitting before the + whole packet has been completely uploaded. */ + + spin_lock_irqsave(&lp->lock, flags); + netif_stop_queue(dev); + + /* initiate a transmit sequence */ + writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd); + writeword(dev->base_addr, TX_LEN_PORT, skb->len); + + /* Test to see if the chip has allocated memory for the packet */ + if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) { + /* + * Gasp! It hasn't. But that shouldn't happen since + * we're waiting for TxOk, so return 1 and requeue this packet. + */ + + spin_unlock_irqrestore(&lp->lock, flags); + if (net_debug) printk("cs89x0: Tx buffer not free!\n"); + return NETDEV_TX_BUSY; + } + /* Write the contents of the packet */ + writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1); + spin_unlock_irqrestore(&lp->lock, flags); + dev->stats.tx_bytes += skb->len; + dev_kfree_skb (skb); + + /* + * We DO NOT call netif_wake_queue() here. + * We also DO NOT call netif_start_queue(). + * + * Either of these would cause another bottom half run through + * net_send_packet() before this packet has fully gone out. That causes + * us to hit the "Gasp!" above and the send is rescheduled. it runs like + * a dog. We just return and wait for the Tx completion interrupt handler + * to restart the netdevice layer + */ + + return NETDEV_TX_OK; +} + +/* The typical workload of the driver: + Handle the network interface interrupts. */ + +static irqreturn_t net_interrupt(int irq, void *dev_id) +{ + struct net_device *dev = dev_id; + struct net_local *lp; + int ioaddr, status; + int handled = 0; + + ioaddr = dev->base_addr; + lp = netdev_priv(dev); + + /* we MUST read all the events out of the ISQ, otherwise we'll never + get interrupted again. As a consequence, we can't have any limit + on the number of times we loop in the interrupt handler. The + hardware guarantees that eventually we'll run out of events. Of + course, if you're on a slow machine, and packets are arriving + faster than you can read them off, you're screwed. Hasta la + vista, baby! */ + while ((status = readword(dev->base_addr, ISQ_PORT))) { + if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status); + handled = 1; + switch(status & ISQ_EVENT_MASK) { + case ISQ_RECEIVER_EVENT: + /* Got a packet(s). */ + net_rx(dev); + break; + case ISQ_TRANSMITTER_EVENT: + dev->stats.tx_packets++; + netif_wake_queue(dev); /* Inform upper layers. */ + if ((status & ( TX_OK | + TX_LOST_CRS | + TX_SQE_ERROR | + TX_LATE_COL | + TX_16_COL)) != TX_OK) { + if ((status & TX_OK) == 0) + dev->stats.tx_errors++; + if (status & TX_LOST_CRS) + dev->stats.tx_carrier_errors++; + if (status & TX_SQE_ERROR) + dev->stats.tx_heartbeat_errors++; + if (status & TX_LATE_COL) + dev->stats.tx_window_errors++; + if (status & TX_16_COL) + dev->stats.tx_aborted_errors++; + } + break; + case ISQ_BUFFER_EVENT: + if (status & READY_FOR_TX) { + /* we tried to transmit a packet earlier, + but inexplicably ran out of buffers. + That shouldn't happen since we only ever + load one packet. Shrug. Do the right + thing anyway. */ + netif_wake_queue(dev); /* Inform upper layers. */ + } + if (status & TX_UNDERRUN) { + if (net_debug > 0) printk("%s: transmit underrun\n", dev->name); + lp->send_underrun++; + if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381; + else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL; + /* transmit cycle is done, although + frame wasn't transmitted - this + avoids having to wait for the upper + layers to timeout on us, in the + event of a tx underrun */ + netif_wake_queue(dev); /* Inform upper layers. */ + } +#if ALLOW_DMA + if (lp->use_dma && (status & RX_DMA)) { + int count = readreg(dev, PP_DmaFrameCnt); + while(count) { + if (net_debug > 5) + printk("%s: receiving %d DMA frames\n", dev->name, count); + if (net_debug > 2 && count >1) + printk("%s: receiving %d DMA frames\n", dev->name, count); + dma_rx(dev); + if (--count == 0) + count = readreg(dev, PP_DmaFrameCnt); + if (net_debug > 2 && count > 0) + printk("%s: continuing with %d DMA frames\n", dev->name, count); + } + } +#endif + break; + case ISQ_RX_MISS_EVENT: + dev->stats.rx_missed_errors += (status >> 6); + break; + case ISQ_TX_COL_EVENT: + dev->stats.collisions += (status >> 6); + break; + } + } + return IRQ_RETVAL(handled); +} + +static void +count_rx_errors(int status, struct net_device *dev) +{ + dev->stats.rx_errors++; + if (status & RX_RUNT) + dev->stats.rx_length_errors++; + if (status & RX_EXTRA_DATA) + dev->stats.rx_length_errors++; + if ((status & RX_CRC_ERROR) && !(status & (RX_EXTRA_DATA|RX_RUNT))) + /* per str 172 */ + dev->stats.rx_crc_errors++; + if (status & RX_DRIBBLE) + dev->stats.rx_frame_errors++; +} + +/* We have a good packet(s), get it/them out of the buffers. */ +static void +net_rx(struct net_device *dev) +{ + struct sk_buff *skb; + int status, length; + + int ioaddr = dev->base_addr; + status = readword(ioaddr, RX_FRAME_PORT); + length = readword(ioaddr, RX_FRAME_PORT); + + if ((status & RX_OK) == 0) { + count_rx_errors(status, dev); + return; + } + + /* Malloc up new buffer. */ + skb = dev_alloc_skb(length + 2); + if (skb == NULL) { +#if 0 /* Again, this seems a cruel thing to do */ + printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); +#endif + dev->stats.rx_dropped++; + return; + } + skb_reserve(skb, 2); /* longword align L3 header */ + + readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1); + if (length & 1) + skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT); + + if (net_debug > 3) { + printk( "%s: received %d byte packet of type %x\n", + dev->name, length, + (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); + } + + skb->protocol=eth_type_trans(skb,dev); + netif_rx(skb); + dev->stats.rx_packets++; + dev->stats.rx_bytes += length; +} + +#if ALLOW_DMA +static void release_dma_buff(struct net_local *lp) +{ + if (lp->dma_buff) { + free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024)); + lp->dma_buff = NULL; + } +} +#endif + +/* The inverse routine to net_open(). */ +static int +net_close(struct net_device *dev) +{ +#if ALLOW_DMA + struct net_local *lp = netdev_priv(dev); +#endif + + netif_stop_queue(dev); + + writereg(dev, PP_RxCFG, 0); + writereg(dev, PP_TxCFG, 0); + writereg(dev, PP_BufCFG, 0); + writereg(dev, PP_BusCTL, 0); + + free_irq(dev->irq, dev); + +#if ALLOW_DMA + if (lp->use_dma && lp->dma) { + free_dma(dev->dma); + release_dma_buff(lp); + } +#endif + + /* Update the statistics here. */ + return 0; +} + +/* Get the current statistics. This may be called with the card open or + closed. */ +static struct net_device_stats * +net_get_stats(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&lp->lock, flags); + /* Update the statistics from the device registers. */ + dev->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6); + dev->stats.collisions += (readreg(dev, PP_TxCol) >> 6); + spin_unlock_irqrestore(&lp->lock, flags); + + return &dev->stats; +} + +static void set_multicast_list(struct net_device *dev) +{ + struct net_local *lp = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&lp->lock, flags); + if(dev->flags&IFF_PROMISC) + { + lp->rx_mode = RX_ALL_ACCEPT; + } + else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev)) + { + /* The multicast-accept list is initialized to accept-all, and we + rely on higher-level filtering for now. */ + lp->rx_mode = RX_MULTCAST_ACCEPT; + } + else + lp->rx_mode = 0; + + writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode); + + /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */ + writereg(dev, PP_RxCFG, lp->curr_rx_cfg | + (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0)); + spin_unlock_irqrestore(&lp->lock, flags); +} + + +static int set_mac_address(struct net_device *dev, void *p) +{ + int i; + struct sockaddr *addr = p; + + if (netif_running(dev)) + return -EBUSY; + + memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); + + if (net_debug) + printk("%s: Setting MAC address to %pM.\n", + dev->name, dev->dev_addr); + + /* set the Ethernet address */ + for (i=0; i < ETH_ALEN/2; i++) + writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); + + return 0; +} + +#ifdef MODULE + +static struct net_device *dev_cs89x0; + +/* + * Support the 'debug' module parm even if we're compiled for non-debug to + * avoid breaking someone's startup scripts + */ + +static int io; +static int irq; +static int debug; +static char media[8]; +static int duplex=-1; + +static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */ +static int dma; +static int dmasize=16; /* or 64 */ + +module_param(io, int, 0); +module_param(irq, int, 0); +module_param(debug, int, 0); +module_param_string(media, media, sizeof(media), 0); +module_param(duplex, int, 0); +module_param(dma , int, 0); +module_param(dmasize , int, 0); +module_param(use_dma , int, 0); +MODULE_PARM_DESC(io, "cs89x0 I/O base address"); +MODULE_PARM_DESC(irq, "cs89x0 IRQ number"); +#if DEBUGGING +MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)"); +#else +MODULE_PARM_DESC(debug, "(ignored)"); +#endif +MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)"); +/* No other value than -1 for duplex seems to be currently interpreted */ +MODULE_PARM_DESC(duplex, "(ignored)"); +#if ALLOW_DMA +MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0"); +MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0"); +MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)"); +#else +MODULE_PARM_DESC(dma , "(ignored)"); +MODULE_PARM_DESC(dmasize , "(ignored)"); +MODULE_PARM_DESC(use_dma , "(ignored)"); +#endif + +MODULE_AUTHOR("Mike Cruse, Russwll Nelson , Andrew Morton"); +MODULE_LICENSE("GPL"); + + +/* +* media=t - specify media type + or media=2 + or media=aui + or medai=auto +* duplex=0 - specify forced half/full/autonegotiate duplex +* debug=# - debug level + + +* Default Chip Configuration: + * DMA Burst = enabled + * IOCHRDY Enabled = enabled + * UseSA = enabled + * CS8900 defaults to half-duplex if not specified on command-line + * CS8920 defaults to autoneg if not specified on command-line + * Use reset defaults for other config parameters + +* Assumptions: + * media type specified is supported (circuitry is present) + * if memory address is > 1MB, then required mem decode hw is present + * if 10B-2, then agent other than driver will enable DC/DC converter + (hw or software util) + + +*/ + +int __init init_module(void) +{ + struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); + struct net_local *lp; + int ret = 0; + +#if DEBUGGING + net_debug = debug; +#else + debug = 0; +#endif + if (!dev) + return -ENOMEM; + + dev->irq = irq; + dev->base_addr = io; + lp = netdev_priv(dev); + +#if ALLOW_DMA + if (use_dma) { + lp->use_dma = use_dma; + lp->dma = dma; + lp->dmasize = dmasize; + } +#endif + + spin_lock_init(&lp->lock); + + /* boy, they'd better get these right */ + if (!strcmp(media, "rj45")) + lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; + else if (!strcmp(media, "aui")) + lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI; + else if (!strcmp(media, "bnc")) + lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2; + else + lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; + + if (duplex==-1) + lp->auto_neg_cnf = AUTO_NEG_ENABLE; + + if (io == 0) { + printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n"); + printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n"); + ret = -EPERM; + goto out; + } else if (io <= 0x1ff) { + ret = -ENXIO; + goto out; + } + +#if ALLOW_DMA + if (use_dma && dmasize != 16 && dmasize != 64) { + printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize); + ret = -EPERM; + goto out; + } +#endif + ret = cs89x0_probe1(dev, io, 1); + if (ret) + goto out; + + dev_cs89x0 = dev; + return 0; +out: + free_netdev(dev); + return ret; +} + +void __exit +cleanup_module(void) +{ + unregister_netdev(dev_cs89x0); + writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID); + release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT); + free_netdev(dev_cs89x0); +} +#endif /* MODULE */ + +/* + * Local variables: + * version-control: t + * kept-new-versions: 5 + * c-indent-level: 8 + * tab-width: 8 + * End: + * + */ diff --git a/drivers/net/ethernet/cirrus/cs89x0.h b/drivers/net/ethernet/cirrus/cs89x0.h new file mode 100644 index 00000000000..91423b70bb4 --- /dev/null +++ b/drivers/net/ethernet/cirrus/cs89x0.h @@ -0,0 +1,465 @@ +/* Copyright, 1988-1992, Russell Nelson, Crynwr Software + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, version 1. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +#define PP_ChipID 0x0000 /* offset 0h -> Corp -ID */ + /* offset 2h -> Model/Product Number */ + /* offset 3h -> Chip Revision Number */ + +#define PP_ISAIOB 0x0020 /* IO base address */ +#define PP_CS8900_ISAINT 0x0022 /* ISA interrupt select */ +#define PP_CS8920_ISAINT 0x0370 /* ISA interrupt select */ +#define PP_CS8900_ISADMA 0x0024 /* ISA Rec DMA channel */ +#define PP_CS8920_ISADMA 0x0374 /* ISA Rec DMA channel */ +#define PP_ISASOF 0x0026 /* ISA DMA offset */ +#define PP_DmaFrameCnt 0x0028 /* ISA DMA Frame count */ +#define PP_DmaByteCnt 0x002A /* ISA DMA Byte count */ +#define PP_CS8900_ISAMemB 0x002C /* Memory base */ +#define PP_CS8920_ISAMemB 0x0348 /* */ + +#define PP_ISABootBase 0x0030 /* Boot Prom base */ +#define PP_ISABootMask 0x0034 /* Boot Prom Mask */ + +/* EEPROM data and command registers */ +#define PP_EECMD 0x0040 /* NVR Interface Command register */ +#define PP_EEData 0x0042 /* NVR Interface Data Register */ +#define PP_DebugReg 0x0044 /* Debug Register */ + +#define PP_RxCFG 0x0102 /* Rx Bus config */ +#define PP_RxCTL 0x0104 /* Receive Control Register */ +#define PP_TxCFG 0x0106 /* Transmit Config Register */ +#define PP_TxCMD 0x0108 /* Transmit Command Register */ +#define PP_BufCFG 0x010A /* Bus configuration Register */ +#define PP_LineCTL 0x0112 /* Line Config Register */ +#define PP_SelfCTL 0x0114 /* Self Command Register */ +#define PP_BusCTL 0x0116 /* ISA bus control Register */ +#define PP_TestCTL 0x0118 /* Test Register */ +#define PP_AutoNegCTL 0x011C /* Auto Negotiation Ctrl */ + +#define PP_ISQ 0x0120 /* Interrupt Status */ +#define PP_RxEvent 0x0124 /* Rx Event Register */ +#define PP_TxEvent 0x0128 /* Tx Event Register */ +#define PP_BufEvent 0x012C /* Bus Event Register */ +#define PP_RxMiss 0x0130 /* Receive Miss Count */ +#define PP_TxCol 0x0132 /* Transmit Collision Count */ +#define PP_LineST 0x0134 /* Line State Register */ +#define PP_SelfST 0x0136 /* Self State register */ +#define PP_BusST 0x0138 /* Bus Status */ +#define PP_TDR 0x013C /* Time Domain Reflectometry */ +#define PP_AutoNegST 0x013E /* Auto Neg Status */ +#define PP_TxCommand 0x0144 /* Tx Command */ +#define PP_TxLength 0x0146 /* Tx Length */ +#define PP_LAF 0x0150 /* Hash Table */ +#define PP_IA 0x0158 /* Physical Address Register */ + +#define PP_RxStatus 0x0400 /* Receive start of frame */ +#define PP_RxLength 0x0402 /* Receive Length of frame */ +#define PP_RxFrame 0x0404 /* Receive frame pointer */ +#define PP_TxFrame 0x0A00 /* Transmit frame pointer */ + +/* Primary I/O Base Address. If no I/O base is supplied by the user, then this */ +/* can be used as the default I/O base to access the PacketPage Area. */ +#define DEFAULTIOBASE 0x0300 +#define FIRST_IO 0x020C /* First I/O port to check */ +#define LAST_IO 0x037C /* Last I/O port to check (+10h) */ +#define ADD_MASK 0x3000 /* Mask it use of the ADD_PORT register */ +#define ADD_SIG 0x3000 /* Expected ID signature */ + +/* On Macs, we only need use the ISA I/O stuff until we do MEMORY_ON */ +#ifdef CONFIG_MAC +#define LCSLOTBASE 0xfee00000 +#define MMIOBASE 0x40000 +#endif + +#define CHIP_EISA_ID_SIG 0x630E /* Product ID Code for Crystal Chip (CS8900 spec 4.3) */ +#define CHIP_EISA_ID_SIG_STR "0x630E" + +#ifdef IBMEIPKT +#define EISA_ID_SIG 0x4D24 /* IBM */ +#define PART_NO_SIG 0x1010 /* IBM */ +#define MONGOOSE_BIT 0x0000 /* IBM */ +#else +#define EISA_ID_SIG 0x630E /* PnP Vendor ID (same as chip id for Crystal board) */ +#define PART_NO_SIG 0x4000 /* ID code CS8920 board (PnP Vendor Product code) */ +#define MONGOOSE_BIT 0x2000 /* PART_NO_SIG + MONGOOSE_BUT => ID of mongoose */ +#endif + +#define PRODUCT_ID_ADD 0x0002 /* Address of product ID */ + +/* Mask to find out the types of registers */ +#define REG_TYPE_MASK 0x001F + +/* Eeprom Commands */ +#define ERSE_WR_ENBL 0x00F0 +#define ERSE_WR_DISABLE 0x0000 + +/* Defines Control/Config register quintuplet numbers */ +#define RX_BUF_CFG 0x0003 +#define RX_CONTROL 0x0005 +#define TX_CFG 0x0007 +#define TX_COMMAND 0x0009 +#define BUF_CFG 0x000B +#define LINE_CONTROL 0x0013 +#define SELF_CONTROL 0x0015 +#define BUS_CONTROL 0x0017 +#define TEST_CONTROL 0x0019 + +/* Defines Status/Count registers quintuplet numbers */ +#define RX_EVENT 0x0004 +#define TX_EVENT 0x0008 +#define BUF_EVENT 0x000C +#define RX_MISS_COUNT 0x0010 +#define TX_COL_COUNT 0x0012 +#define LINE_STATUS 0x0014 +#define SELF_STATUS 0x0016 +#define BUS_STATUS 0x0018 +#define TDR 0x001C + +/* PP_RxCFG - Receive Configuration and Interrupt Mask bit definition - Read/write */ +#define SKIP_1 0x0040 +#define RX_STREAM_ENBL 0x0080 +#define RX_OK_ENBL 0x0100 +#define RX_DMA_ONLY 0x0200 +#define AUTO_RX_DMA 0x0400 +#define BUFFER_CRC 0x0800 +#define RX_CRC_ERROR_ENBL 0x1000 +#define RX_RUNT_ENBL 0x2000 +#define RX_EXTRA_DATA_ENBL 0x4000 + +/* PP_RxCTL - Receive Control bit definition - Read/write */ +#define RX_IA_HASH_ACCEPT 0x0040 +#define RX_PROM_ACCEPT 0x0080 +#define RX_OK_ACCEPT 0x0100 +#define RX_MULTCAST_ACCEPT 0x0200 +#define RX_IA_ACCEPT 0x0400 +#define RX_BROADCAST_ACCEPT 0x0800 +#define RX_BAD_CRC_ACCEPT 0x1000 +#define RX_RUNT_ACCEPT 0x2000 +#define RX_EXTRA_DATA_ACCEPT 0x4000 +#define RX_ALL_ACCEPT (RX_PROM_ACCEPT|RX_BAD_CRC_ACCEPT|RX_RUNT_ACCEPT|RX_EXTRA_DATA_ACCEPT) +/* Default receive mode - individually addressed, broadcast, and error free */ +#define DEF_RX_ACCEPT (RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | RX_OK_ACCEPT) + +/* PP_TxCFG - Transmit Configuration Interrupt Mask bit definition - Read/write */ +#define TX_LOST_CRS_ENBL 0x0040 +#define TX_SQE_ERROR_ENBL 0x0080 +#define TX_OK_ENBL 0x0100 +#define TX_LATE_COL_ENBL 0x0200 +#define TX_JBR_ENBL 0x0400 +#define TX_ANY_COL_ENBL 0x0800 +#define TX_16_COL_ENBL 0x8000 + +/* PP_TxCMD - Transmit Command bit definition - Read-only */ +#define TX_START_4_BYTES 0x0000 +#define TX_START_64_BYTES 0x0040 +#define TX_START_128_BYTES 0x0080 +#define TX_START_ALL_BYTES 0x00C0 +#define TX_FORCE 0x0100 +#define TX_ONE_COL 0x0200 +#define TX_TWO_PART_DEFF_DISABLE 0x0400 +#define TX_NO_CRC 0x1000 +#define TX_RUNT 0x2000 + +/* PP_BufCFG - Buffer Configuration Interrupt Mask bit definition - Read/write */ +#define GENERATE_SW_INTERRUPT 0x0040 +#define RX_DMA_ENBL 0x0080 +#define READY_FOR_TX_ENBL 0x0100 +#define TX_UNDERRUN_ENBL 0x0200 +#define RX_MISS_ENBL 0x0400 +#define RX_128_BYTE_ENBL 0x0800 +#define TX_COL_COUNT_OVRFLOW_ENBL 0x1000 +#define RX_MISS_COUNT_OVRFLOW_ENBL 0x2000 +#define RX_DEST_MATCH_ENBL 0x8000 + +/* PP_LineCTL - Line Control bit definition - Read/write */ +#define SERIAL_RX_ON 0x0040 +#define SERIAL_TX_ON 0x0080 +#define AUI_ONLY 0x0100 +#define AUTO_AUI_10BASET 0x0200 +#define MODIFIED_BACKOFF 0x0800 +#define NO_AUTO_POLARITY 0x1000 +#define TWO_PART_DEFDIS 0x2000 +#define LOW_RX_SQUELCH 0x4000 + +/* PP_SelfCTL - Software Self Control bit definition - Read/write */ +#define POWER_ON_RESET 0x0040 +#define SW_STOP 0x0100 +#define SLEEP_ON 0x0200 +#define AUTO_WAKEUP 0x0400 +#define HCB0_ENBL 0x1000 +#define HCB1_ENBL 0x2000 +#define HCB0 0x4000 +#define HCB1 0x8000 + +/* PP_BusCTL - ISA Bus Control bit definition - Read/write */ +#define RESET_RX_DMA 0x0040 +#define MEMORY_ON 0x0400 +#define DMA_BURST_MODE 0x0800 +#define IO_CHANNEL_READY_ON 0x1000 +#define RX_DMA_SIZE_64K 0x2000 +#define ENABLE_IRQ 0x8000 + +/* PP_TestCTL - Test Control bit definition - Read/write */ +#define LINK_OFF 0x0080 +#define ENDEC_LOOPBACK 0x0200 +#define AUI_LOOPBACK 0x0400 +#define BACKOFF_OFF 0x0800 +#define FDX_8900 0x4000 +#define FAST_TEST 0x8000 + +/* PP_RxEvent - Receive Event Bit definition - Read-only */ +#define RX_IA_HASHED 0x0040 +#define RX_DRIBBLE 0x0080 +#define RX_OK 0x0100 +#define RX_HASHED 0x0200 +#define RX_IA 0x0400 +#define RX_BROADCAST 0x0800 +#define RX_CRC_ERROR 0x1000 +#define RX_RUNT 0x2000 +#define RX_EXTRA_DATA 0x4000 + +#define HASH_INDEX_MASK 0x0FC00 + +/* PP_TxEvent - Transmit Event Bit definition - Read-only */ +#define TX_LOST_CRS 0x0040 +#define TX_SQE_ERROR 0x0080 +#define TX_OK 0x0100 +#define TX_LATE_COL 0x0200 +#define TX_JBR 0x0400 +#define TX_16_COL 0x8000 +#define TX_SEND_OK_BITS (TX_OK|TX_LOST_CRS) +#define TX_COL_COUNT_MASK 0x7800 + +/* PP_BufEvent - Buffer Event Bit definition - Read-only */ +#define SW_INTERRUPT 0x0040 +#define RX_DMA 0x0080 +#define READY_FOR_TX 0x0100 +#define TX_UNDERRUN 0x0200 +#define RX_MISS 0x0400 +#define RX_128_BYTE 0x0800 +#define TX_COL_OVRFLW 0x1000 +#define RX_MISS_OVRFLW 0x2000 +#define RX_DEST_MATCH 0x8000 + +/* PP_LineST - Ethernet Line Status bit definition - Read-only */ +#define LINK_OK 0x0080 +#define AUI_ON 0x0100 +#define TENBASET_ON 0x0200 +#define POLARITY_OK 0x1000 +#define CRS_OK 0x4000 + +/* PP_SelfST - Chip Software Status bit definition */ +#define ACTIVE_33V 0x0040 +#define INIT_DONE 0x0080 +#define SI_BUSY 0x0100 +#define EEPROM_PRESENT 0x0200 +#define EEPROM_OK 0x0400 +#define EL_PRESENT 0x0800 +#define EE_SIZE_64 0x1000 + +/* PP_BusST - ISA Bus Status bit definition */ +#define TX_BID_ERROR 0x0080 +#define READY_FOR_TX_NOW 0x0100 + +/* PP_AutoNegCTL - Auto Negotiation Control bit definition */ +#define RE_NEG_NOW 0x0040 +#define ALLOW_FDX 0x0080 +#define AUTO_NEG_ENABLE 0x0100 +#define NLP_ENABLE 0x0200 +#define FORCE_FDX 0x8000 +#define AUTO_NEG_BITS (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE) +#define AUTO_NEG_MASK (FORCE_FDX|NLP_ENABLE|AUTO_NEG_ENABLE|ALLOW_FDX|RE_NEG_NOW) + +/* PP_AutoNegST - Auto Negotiation Status bit definition */ +#define AUTO_NEG_BUSY 0x0080 +#define FLP_LINK 0x0100 +#define FLP_LINK_GOOD 0x0800 +#define LINK_FAULT 0x1000 +#define HDX_ACTIVE 0x4000 +#define FDX_ACTIVE 0x8000 + +/* The following block defines the ISQ event types */ +#define ISQ_RECEIVER_EVENT 0x04 +#define ISQ_TRANSMITTER_EVENT 0x08 +#define ISQ_BUFFER_EVENT 0x0c +#define ISQ_RX_MISS_EVENT 0x10 +#define ISQ_TX_COL_EVENT 0x12 + +#define ISQ_EVENT_MASK 0x003F /* ISQ mask to find out type of event */ +#define ISQ_HIST 16 /* small history buffer */ +#define AUTOINCREMENT 0x8000 /* Bit mask to set bit-15 for autoincrement */ + +#define TXRXBUFSIZE 0x0600 +#define RXDMABUFSIZE 0x8000 +#define RXDMASIZE 0x4000 +#define TXRX_LENGTH_MASK 0x07FF + +/* rx options bits */ +#define RCV_WITH_RXON 1 /* Set SerRx ON */ +#define RCV_COUNTS 2 /* Use Framecnt1 */ +#define RCV_PONG 4 /* Pong respondent */ +#define RCV_DONG 8 /* Dong operation */ +#define RCV_POLLING 0x10 /* Poll RxEvent */ +#define RCV_ISQ 0x20 /* Use ISQ, int */ +#define RCV_AUTO_DMA 0x100 /* Set AutoRxDMAE */ +#define RCV_DMA 0x200 /* Set RxDMA only */ +#define RCV_DMA_ALL 0x400 /* Copy all DMA'ed */ +#define RCV_FIXED_DATA 0x800 /* Every frame same */ +#define RCV_IO 0x1000 /* Use ISA IO only */ +#define RCV_MEMORY 0x2000 /* Use ISA Memory */ + +#define RAM_SIZE 0x1000 /* The card has 4k bytes or RAM */ +#define PKT_START PP_TxFrame /* Start of packet RAM */ + +#define RX_FRAME_PORT 0x0000 +#define TX_FRAME_PORT RX_FRAME_PORT +#define TX_CMD_PORT 0x0004 +#define TX_NOW 0x0000 /* Tx packet after 5 bytes copied */ +#define TX_AFTER_381 0x0040 /* Tx packet after 381 bytes copied */ +#define TX_AFTER_ALL 0x00c0 /* Tx packet after all bytes copied */ +#define TX_LEN_PORT 0x0006 +#define ISQ_PORT 0x0008 +#define ADD_PORT 0x000A +#define DATA_PORT 0x000C + +#define EEPROM_WRITE_EN 0x00F0 +#define EEPROM_WRITE_DIS 0x0000 +#define EEPROM_WRITE_CMD 0x0100 +#define EEPROM_READ_CMD 0x0200 + +/* Receive Header */ +/* Description of header of each packet in receive area of memory */ +#define RBUF_EVENT_LOW 0 /* Low byte of RxEvent - status of received frame */ +#define RBUF_EVENT_HIGH 1 /* High byte of RxEvent - status of received frame */ +#define RBUF_LEN_LOW 2 /* Length of received data - low byte */ +#define RBUF_LEN_HI 3 /* Length of received data - high byte */ +#define RBUF_HEAD_LEN 4 /* Length of this header */ + +#define CHIP_READ 0x1 /* Used to mark state of the repins code (chip or dma) */ +#define DMA_READ 0x2 /* Used to mark state of the repins code (chip or dma) */ + +/* for bios scan */ +/* */ +#ifdef CSDEBUG +/* use these values for debugging bios scan */ +#define BIOS_START_SEG 0x00000 +#define BIOS_OFFSET_INC 0x0010 +#else +#define BIOS_START_SEG 0x0c000 +#define BIOS_OFFSET_INC 0x0200 +#endif + +#define BIOS_LAST_OFFSET 0x0fc00 + +/* Byte offsets into the EEPROM configuration buffer */ +#define ISA_CNF_OFFSET 0x6 +#define TX_CTL_OFFSET (ISA_CNF_OFFSET + 8) /* 8900 eeprom */ +#define AUTO_NEG_CNF_OFFSET (ISA_CNF_OFFSET + 8) /* 8920 eeprom */ + + /* the assumption here is that the bits in the eeprom are generally */ + /* in the same position as those in the autonegctl register. */ + /* Of course the IMM bit is not in that register so it must be */ + /* masked out */ +#define EE_FORCE_FDX 0x8000 +#define EE_NLP_ENABLE 0x0200 +#define EE_AUTO_NEG_ENABLE 0x0100 +#define EE_ALLOW_FDX 0x0080 +#define EE_AUTO_NEG_CNF_MASK (EE_FORCE_FDX|EE_NLP_ENABLE|EE_AUTO_NEG_ENABLE|EE_ALLOW_FDX) + +#define IMM_BIT 0x0040 /* ignore missing media */ + +#define ADAPTER_CNF_OFFSET (AUTO_NEG_CNF_OFFSET + 2) +#define A_CNF_10B_T 0x0001 +#define A_CNF_AUI 0x0002 +#define A_CNF_10B_2 0x0004 +#define A_CNF_MEDIA_TYPE 0x0070 +#define A_CNF_MEDIA_AUTO 0x0070 +#define A_CNF_MEDIA_10B_T 0x0020 +#define A_CNF_MEDIA_AUI 0x0040 +#define A_CNF_MEDIA_10B_2 0x0010 +#define A_CNF_DC_DC_POLARITY 0x0080 +#define A_CNF_NO_AUTO_POLARITY 0x2000 +#define A_CNF_LOW_RX_SQUELCH 0x4000 +#define A_CNF_EXTND_10B_2 0x8000 + +#define PACKET_PAGE_OFFSET 0x8 + +/* Bit definitions for the ISA configuration word from the EEPROM */ +#define INT_NO_MASK 0x000F +#define DMA_NO_MASK 0x0070 +#define ISA_DMA_SIZE 0x0200 +#define ISA_AUTO_RxDMA 0x0400 +#define ISA_RxDMA 0x0800 +#define DMA_BURST 0x1000 +#define STREAM_TRANSFER 0x2000 +#define ANY_ISA_DMA (ISA_AUTO_RxDMA | ISA_RxDMA) + +/* DMA controller registers */ +#define DMA_BASE 0x00 /* DMA controller base */ +#define DMA_BASE_2 0x0C0 /* DMA controller base */ + +#define DMA_STAT 0x0D0 /* DMA controller status register */ +#define DMA_MASK 0x0D4 /* DMA controller mask register */ +#define DMA_MODE 0x0D6 /* DMA controller mode register */ +#define DMA_RESETFF 0x0D8 /* DMA controller first/last flip flop */ + +/* DMA data */ +#define DMA_DISABLE 0x04 /* Disable channel n */ +#define DMA_ENABLE 0x00 /* Enable channel n */ +/* Demand transfers, incr. address, auto init, writes, ch. n */ +#define DMA_RX_MODE 0x14 +/* Demand transfers, incr. address, auto init, reads, ch. n */ +#define DMA_TX_MODE 0x18 + +#define DMA_SIZE (16*1024) /* Size of dma buffer - 16k */ + +#define CS8900 0x0000 +#define CS8920 0x4000 +#define CS8920M 0x6000 +#define REVISON_BITS 0x1F00 +#define EEVER_NUMBER 0x12 +#define CHKSUM_LEN 0x14 +#define CHKSUM_VAL 0x0000 +#define START_EEPROM_DATA 0x001c /* Offset into eeprom for start of data */ +#define IRQ_MAP_EEPROM_DATA 0x0046 /* Offset into eeprom for the IRQ map */ +#define IRQ_MAP_LEN 0x0004 /* No of bytes to read for the IRQ map */ +#define PNP_IRQ_FRMT 0x0022 /* PNP small item IRQ format */ +#define CS8900_IRQ_MAP 0x1c20 /* This IRQ map is fixed */ + +#define CS8920_NO_INTS 0x0F /* Max CS8920 interrupt select # */ + +#define PNP_ADD_PORT 0x0279 +#define PNP_WRITE_PORT 0x0A79 + +#define GET_PNP_ISA_STRUCT 0x40 +#define PNP_ISA_STRUCT_LEN 0x06 +#define PNP_CSN_CNT_OFF 0x01 +#define PNP_RD_PORT_OFF 0x02 +#define PNP_FUNCTION_OK 0x00 +#define PNP_WAKE 0x03 +#define PNP_RSRC_DATA 0x04 +#define PNP_RSRC_READY 0x01 +#define PNP_STATUS 0x05 +#define PNP_ACTIVATE 0x30 +#define PNP_CNF_IO_H 0x60 +#define PNP_CNF_IO_L 0x61 +#define PNP_CNF_INT 0x70 +#define PNP_CNF_DMA 0x74 +#define PNP_CNF_MEM 0x48 + +#define BIT0 1 +#define BIT15 0x8000 +