diff options
Diffstat (limited to 'drivers/net/ethernet/apple/cs89x0.c')
-rw-r--r-- | drivers/net/ethernet/apple/cs89x0.c | 1913 |
1 files changed, 0 insertions, 1913 deletions
diff --git a/drivers/net/ethernet/apple/cs89x0.c b/drivers/net/ethernet/apple/cs89x0.c deleted file mode 100644 index f328da24c8fa..000000000000 --- 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 - : <klee@crystal.cirrus.com>) - : 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 <jgg@ualberta.ca>) - - 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 <linux/module.h> - -/* - * 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 <linux/errno.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/in.h> -#include <linux/skbuff.h> -#include <linux/spinlock.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include <linux/gfp.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#if ALLOW_DMA -#include <asm/dma.h> -#endif - -#include "cs89x0.h" - -static char version[] __initdata = -"cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, 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 <mach/qq2440.h> -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 <mach/board-mx31ads.h> -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; < |