| /* 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 |
| |
| */ |
| |
| /* 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_SH_HICOSH4) |
| static unsigned int netcard_portlist[] __used __initdata = |
| { 0x0300, 0}; |
| static unsigned int cs8900_irq_map[] = {1,0,0,0}; |
| #elif 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_ARCH_PNX010X) |
| #include <mach/gpio.h> |
| #define CIRRUS_DEFAULT_BASE IO_ADDRESS(EXT_STATIC2_s0_BASE + 0x200000) /* = Physical address 0x48200000 */ |
| #define CIRRUS_DEFAULT_IRQ VH_INTC_INT_NUM_CASCADED_INTERRUPT_1 /* Event inputs bank 1 - ID 35/bit 3 */ |
| static unsigned int netcard_portlist[] __used __initdata = {CIRRUS_DEFAULT_BASE, 0}; |
| static unsigned int cs8900_irq_map[] = {CIRRUS_DEFAULT_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 { |
| struct net_device_stats stats; |
| 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_local *lp); |
| #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)); |
| } |
| #elif defined(CONFIG_ARCH_PNX010X) |
| static u16 |
| readword(unsigned long base_addr, int portno) |
| { |
| return inw(base_addr + (portno << 1)); |
| } |
| |
| static void |
| writeword(unsigned long base_addr, int portno, u16 value) |
| { |
| outw(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_multicast_list = 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 |
| } |
| |
| #ifdef CONFIG_ARCH_PNX010X |
| initialize_ebi(); |
| |
| /* Map GPIO registers for the pins connected to the CS8900a. */ |
| if (map_cirrus_gpio() < 0) |
| return -ENODEV; |
| |
| reset_cirrus(); |
| |
| /* Map event-router registers. */ |
| if (map_event_router() < 0) |
| return -ENODEV; |
| |
| enable_cirrus_irq(); |
| |
| unmap_cirrus_gpio(); |
| unmap_event_router(); |
| |
| dev->base_addr = ioaddr; |
| |
| for (i = 0 ; i < 3 ; i++) |
| readreg(dev, 0); |
| #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; |
| } |
| |
| #ifdef CONFIG_SH_HICOSH4 |
| /* truly reset the chip */ |
| writeword(ioaddr, ADD_PORT, 0x0114); |
| writeword(ioaddr, DATA_PORT, 0x0040); |
| #endif |
| |
| /* 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. */ |
| |
| #ifdef CONFIG_SH_HICOSH4 |
| if (1) { |
| /* For the HiCO.SH4 board, things are different: we don't |
| have EEPROM, but there is some data in flash, so we go |
| get it there directly (MAC). */ |
| __u16 *confd; |
| short cnt; |
| if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff) |
| == 0x006c3000) { |
| confd = (__u16*) 0xa0013fc0; |
| } else { |
| confd = (__u16*) 0xa001ffc0; |
| } |
| cnt = (*confd++ & 0x00ff) >> 1; |
| while (--cnt > 0) { |
| __u16 j = *confd++; |
| |
| switch (j & 0x0fff) { |
| case PP_IA: |
| for (i = 0; i < ETH_ALEN/2; i++) { |
| dev->dev_addr[i*2] = confd[i] & 0xFF; |
| dev->dev_addr[i*2+1] = confd[i] >> 8; |
| } |
| break; |
| } |
| j = (j >> 12) + 1; |
| confd += j; |
| cnt -= j; |
| } |
| } else |
| #endif |
| |
| 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. */ |
| #ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */ |
| if (1) { |
| printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n"); |
| } else |
| #endif |
| 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; |
| } |
| } |
| 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, lp); |
| 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); |
| lp->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); |
| lp->stats.rx_packets++; |
| lp->stats.rx_bytes += length; |
| } |
| |
| #endif /* ALLOW_DMA */ |
| |
| static void __init reset_chip(struct net_device *dev) |
| { |
| #if !defined(CONFIG_MACH_MX31ADS) |
| #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) |
| struct net_local *lp = netdev_priv(dev); |
| int ioaddr = dev->base_addr; |
| #endif |
| int reset_start_time; |
| |
| writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET); |
| |
| /* wait 30 ms */ |
| msleep(30); |
| |
| #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) |
| 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 /* IXDP2x01 */ |
| |
| /* 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 !defined(CONFIG_SH_HICOSH4) && !defined(CONFIG_ARCH_PNX010X) /* uses irq#1, so this won't work */ |
| 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 |
| #endif |
| { |
| #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); |
| } |
| #ifdef CONFIG_ARCH_PNX010X |
| result = A_CNF_10B_T; |
| #endif |
| 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); |
| lp->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: |
| lp->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) lp->stats.tx_errors++; |
| if (status & TX_LOST_CRS) lp->stats.tx_carrier_errors++; |
| if (status & TX_SQE_ERROR) lp->stats.tx_heartbeat_errors++; |
| if (status & TX_LATE_COL) lp->stats.tx_window_errors++; |
| if (status & TX_16_COL) lp->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: |
| lp->stats.rx_missed_errors += (status >>6); |
| break; |
| case ISQ_TX_COL_EVENT: |
| lp->stats.collisions += (status >>6); |
| break; |
| } |
| } |
| return IRQ_RETVAL(handled); |
| } |
| |
| static void |
| count_rx_errors(int status, struct net_local *lp) |
| { |
| lp->stats.rx_errors++; |
| if (status & RX_RUNT) lp->stats.rx_length_errors++; |
| if (status & RX_EXTRA_DATA) lp->stats.rx_length_errors++; |
| if (status & RX_CRC_ERROR) if (!(status & (RX_EXTRA_DATA|RX_RUNT))) |
| /* per str 172 */ |
| lp->stats.rx_crc_errors++; |
| if (status & RX_DRIBBLE) lp->stats.rx_frame_errors++; |
| return; |
| } |
| |
| /* We have a good packet(s), get it/them out of the buffers. */ |
| static void |
| net_rx(struct net_device *dev) |
| { |
| struct net_local *lp = netdev_priv(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, lp); |
| 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 |
| lp->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); |
| lp->stats.rx_packets++; |
| lp->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. */ |
| lp->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6); |
| lp->stats.collisions += (readreg(dev, PP_TxCol) >> 6); |
| spin_unlock_irqrestore(&lp->lock, flags); |
| |
| return &lp->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 <nelson@crynwr.com>, 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: |
| * |
| */ |