wavelan.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:118k
- /*
- * WaveLAN ISA driver
- *
- * Jean II - HPLB '96
- *
- * Reorganisation and extension of the driver.
- * Original copyright follows (also see the end of this file).
- * See wavelan.p.h for details.
- *
- *
- *
- * AT&T GIS (nee NCR) WaveLAN card:
- * An Ethernet-like radio transceiver
- * controlled by an Intel 82586 coprocessor.
- */
- #include "wavelan.p.h" /* Private header */
- /************************* MISC SUBROUTINES **************************/
- /*
- * Subroutines which won't fit in one of the following category
- * (WaveLAN modem or i82586)
- */
- /*------------------------------------------------------------------*/
- /*
- * Wrapper for disabling interrupts and locking the driver.
- * (note : inline, so optimised away)
- */
- static inline void wv_splhi(net_local * lp,
- unsigned long * pflags)
- {
- spin_lock_irqsave(&lp->spinlock, *pflags);
- /* Note : above does the cli(); itself */
- }
- /*------------------------------------------------------------------*/
- /*
- * Wrapper for re-enabling interrupts and un-locking the driver.
- */
- static inline void wv_splx(net_local * lp,
- unsigned long * pflags)
- {
- spin_unlock_irqrestore(&lp->spinlock, *pflags);
- }
- /*------------------------------------------------------------------*/
- /*
- * Translate irq number to PSA irq parameter
- */
- static u8 wv_irq_to_psa(int irq)
- {
- if (irq < 0 || irq >= NELS(irqvals))
- return 0;
- return irqvals[irq];
- }
- /*------------------------------------------------------------------*/
- /*
- * Translate PSA irq parameter to irq number
- */
- static int __init wv_psa_to_irq(u8 irqval)
- {
- int irq;
- for (irq = 0; irq < NELS(irqvals); irq++)
- if (irqvals[irq] == irqval)
- return irq;
- return -1;
- }
- #ifdef STRUCT_CHECK
- /*------------------------------------------------------------------*/
- /*
- * Sanity routine to verify the sizes of the various WaveLAN interface
- * structures.
- */
- static char *wv_struct_check(void)
- {
- #define SC(t,s,n) if (sizeof(t) != s) return(n);
- SC(psa_t, PSA_SIZE, "psa_t");
- SC(mmw_t, MMW_SIZE, "mmw_t");
- SC(mmr_t, MMR_SIZE, "mmr_t");
- SC(ha_t, HA_SIZE, "ha_t");
- #undef SC
- return ((char *) NULL);
- } /* wv_struct_check */
- #endif /* STRUCT_CHECK */
- /********************* HOST ADAPTER SUBROUTINES *********************/
- /*
- * Useful subroutines to manage the WaveLAN ISA interface
- *
- * One major difference with the PCMCIA hardware (except the port mapping)
- * is that we have to keep the state of the Host Control Register
- * because of the interrupt enable & bus size flags.
- */
- /*------------------------------------------------------------------*/
- /*
- * Read from card's Host Adaptor Status Register.
- */
- static inline u16 hasr_read(unsigned long ioaddr)
- {
- return (inw(HASR(ioaddr)));
- } /* hasr_read */
- /*------------------------------------------------------------------*/
- /*
- * Write to card's Host Adapter Command Register.
- */
- static inline void hacr_write(unsigned long ioaddr, u16 hacr)
- {
- outw(hacr, HACR(ioaddr));
- } /* hacr_write */
- /*------------------------------------------------------------------*/
- /*
- * Write to card's Host Adapter Command Register. Include a delay for
- * those times when it is needed.
- */
- static inline void hacr_write_slow(unsigned long ioaddr, u16 hacr)
- {
- hacr_write(ioaddr, hacr);
- /* delay might only be needed sometimes */
- mdelay(1);
- } /* hacr_write_slow */
- /*------------------------------------------------------------------*/
- /*
- * Set the channel attention bit.
- */
- static inline void set_chan_attn(unsigned long ioaddr, u16 hacr)
- {
- hacr_write(ioaddr, hacr | HACR_CA);
- } /* set_chan_attn */
- /*------------------------------------------------------------------*/
- /*
- * Reset, and then set host adaptor into default mode.
- */
- static inline void wv_hacr_reset(unsigned long ioaddr)
- {
- hacr_write_slow(ioaddr, HACR_RESET);
- hacr_write(ioaddr, HACR_DEFAULT);
- } /* wv_hacr_reset */
- /*------------------------------------------------------------------*/
- /*
- * Set the I/O transfer over the ISA bus to 8-bit mode
- */
- static inline void wv_16_off(unsigned long ioaddr, u16 hacr)
- {
- hacr &= ~HACR_16BITS;
- hacr_write(ioaddr, hacr);
- } /* wv_16_off */
- /*------------------------------------------------------------------*/
- /*
- * Set the I/O transfer over the ISA bus to 8-bit mode
- */
- static inline void wv_16_on(unsigned long ioaddr, u16 hacr)
- {
- hacr |= HACR_16BITS;
- hacr_write(ioaddr, hacr);
- } /* wv_16_on */
- /*------------------------------------------------------------------*/
- /*
- * Disable interrupts on the WaveLAN hardware.
- * (called by wv_82586_stop())
- */
- static inline void wv_ints_off(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
-
- lp->hacr &= ~HACR_INTRON;
- hacr_write(ioaddr, lp->hacr);
- } /* wv_ints_off */
- /*------------------------------------------------------------------*/
- /*
- * Enable interrupts on the WaveLAN hardware.
- * (called by wv_hw_reset())
- */
- static inline void wv_ints_on(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- lp->hacr |= HACR_INTRON;
- hacr_write(ioaddr, lp->hacr);
- } /* wv_ints_on */
- /******************* MODEM MANAGEMENT SUBROUTINES *******************/
- /*
- * Useful subroutines to manage the modem of the WaveLAN
- */
- /*------------------------------------------------------------------*/
- /*
- * Read the Parameter Storage Area from the WaveLAN card's memory
- */
- /*
- * Read bytes from the PSA.
- */
- static void psa_read(unsigned long ioaddr, u16 hacr, int o, /* offset in PSA */
- u8 * b, /* buffer to fill */
- int n)
- { /* size to read */
- wv_16_off(ioaddr, hacr);
- while (n-- > 0) {
- outw(o, PIOR2(ioaddr));
- o++;
- *b++ = inb(PIOP2(ioaddr));
- }
- wv_16_on(ioaddr, hacr);
- } /* psa_read */
- /*------------------------------------------------------------------*/
- /*
- * Write the Parameter Storage Area to the WaveLAN card's memory.
- */
- static void psa_write(unsigned long ioaddr, u16 hacr, int o, /* Offset in PSA */
- u8 * b, /* Buffer in memory */
- int n)
- { /* Length of buffer */
- int count = 0;
- wv_16_off(ioaddr, hacr);
- while (n-- > 0) {
- outw(o, PIOR2(ioaddr));
- o++;
- outb(*b, PIOP2(ioaddr));
- b++;
- /* Wait for the memory to finish its write cycle */
- count = 0;
- while ((count++ < 100) &&
- (hasr_read(ioaddr) & HASR_PSA_BUSY)) mdelay(1);
- }
- wv_16_on(ioaddr, hacr);
- } /* psa_write */
- #ifdef SET_PSA_CRC
- /*------------------------------------------------------------------*/
- /*
- * Calculate the PSA CRC
- * Thanks to Valster, Nico <NVALSTER@wcnd.nl.lucent.com> for the code
- * NOTE: By specifying a length including the CRC position the
- * returned value should be zero. (i.e. a correct checksum in the PSA)
- *
- * The Windows drivers don't use the CRC, but the AP and the PtP tool
- * depend on it.
- */
- static inline u16 psa_crc(u8 * psa, /* The PSA */
- int size)
- { /* Number of short for CRC */
- int byte_cnt; /* Loop on the PSA */
- u16 crc_bytes = 0; /* Data in the PSA */
- int bit_cnt; /* Loop on the bits of the short */
- for (byte_cnt = 0; byte_cnt < size; byte_cnt++) {
- crc_bytes ^= psa[byte_cnt]; /* Its an xor */
- for (bit_cnt = 1; bit_cnt < 9; bit_cnt++) {
- if (crc_bytes & 0x0001)
- crc_bytes = (crc_bytes >> 1) ^ 0xA001;
- else
- crc_bytes >>= 1;
- }
- }
- return crc_bytes;
- } /* psa_crc */
- #endif /* SET_PSA_CRC */
- /*------------------------------------------------------------------*/
- /*
- * update the checksum field in the Wavelan's PSA
- */
- static void update_psa_checksum(device * dev, unsigned long ioaddr, u16 hacr)
- {
- #ifdef SET_PSA_CRC
- psa_t psa;
- u16 crc;
- /* read the parameter storage area */
- psa_read(ioaddr, hacr, 0, (unsigned char *) &psa, sizeof(psa));
- /* update the checksum */
- crc = psa_crc((unsigned char *) &psa,
- sizeof(psa) - sizeof(psa.psa_crc[0]) -
- sizeof(psa.psa_crc[1])
- - sizeof(psa.psa_crc_status));
- psa.psa_crc[0] = crc & 0xFF;
- psa.psa_crc[1] = (crc & 0xFF00) >> 8;
- /* Write it ! */
- psa_write(ioaddr, hacr, (char *) &psa.psa_crc - (char *) &psa,
- (unsigned char *) &psa.psa_crc, 2);
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG "%s: update_psa_checksum(): crc = 0x%02x%02xn",
- dev->name, psa.psa_crc[0], psa.psa_crc[1]);
- /* Check again (luxury !) */
- crc = psa_crc((unsigned char *) &psa,
- sizeof(psa) - sizeof(psa.psa_crc_status));
- if (crc != 0)
- printk(KERN_WARNING
- "%s: update_psa_checksum(): CRC does not agree with PSA data (even after recalculating)n",
- dev->name);
- #endif /* DEBUG_IOCTL_INFO */
- #endif /* SET_PSA_CRC */
- } /* update_psa_checksum */
- /*------------------------------------------------------------------*/
- /*
- * Write 1 byte to the MMC.
- */
- static inline void mmc_out(unsigned long ioaddr, u16 o, u8 d)
- {
- /* Wait for MMC to go idle */
- while (inw(HASR(ioaddr)) & HASR_MMC_BUSY);
- outw((u16) (((u16) d << 8) | (o << 1) | 1), MMCR(ioaddr));
- }
- /*------------------------------------------------------------------*/
- /*
- * Routine to write bytes to the Modem Management Controller.
- * We start at the end because it is the way it should be!
- */
- static inline void mmc_write(unsigned long ioaddr, u8 o, u8 * b, int n)
- {
- o += n;
- b += n;
- while (n-- > 0)
- mmc_out(ioaddr, --o, *(--b));
- } /* mmc_write */
- /*------------------------------------------------------------------*/
- /*
- * Read a byte from the MMC.
- * Optimised version for 1 byte, avoid using memory.
- */
- static inline u8 mmc_in(unsigned long ioaddr, u16 o)
- {
- while (inw(HASR(ioaddr)) & HASR_MMC_BUSY);
- outw(o << 1, MMCR(ioaddr));
- while (inw(HASR(ioaddr)) & HASR_MMC_BUSY);
- return (u8) (inw(MMCR(ioaddr)) >> 8);
- }
- /*------------------------------------------------------------------*/
- /*
- * Routine to read bytes from the Modem Management Controller.
- * The implementation is complicated by a lack of address lines,
- * which prevents decoding of the low-order bit.
- * (code has just been moved in the above function)
- * We start at the end because it is the way it should be!
- */
- static inline void mmc_read(unsigned long ioaddr, u8 o, u8 * b, int n)
- {
- o += n;
- b += n;
- while (n-- > 0)
- *(--b) = mmc_in(ioaddr, --o);
- } /* mmc_read */
- /*------------------------------------------------------------------*/
- /*
- * Get the type of encryption available.
- */
- static inline int mmc_encr(unsigned long ioaddr)
- { /* I/O port of the card */
- int temp;
- temp = mmc_in(ioaddr, mmroff(0, mmr_des_avail));
- if ((temp != MMR_DES_AVAIL_DES) && (temp != MMR_DES_AVAIL_AES))
- return 0;
- else
- return temp;
- }
- /*------------------------------------------------------------------*/
- /*
- * Wait for the frequency EEPROM to complete a command.
- * I hope this one will be optimally inlined.
- */
- static inline void fee_wait(unsigned long ioaddr, /* I/O port of the card */
- int delay, /* Base delay to wait for */
- int number)
- { /* Number of time to wait */
- int count = 0; /* Wait only a limited time */
- while ((count++ < number) &&
- (mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- MMR_FEE_STATUS_BUSY)) udelay(delay);
- }
- /*------------------------------------------------------------------*/
- /*
- * Read bytes from the Frequency EEPROM (frequency select cards).
- */
- static void fee_read(unsigned long ioaddr, /* I/O port of the card */
- u16 o, /* destination offset */
- u16 * b, /* data buffer */
- int n)
- { /* number of registers */
- b += n; /* Position at the end of the area */
- /* Write the address */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
- /* Loop on all buffer */
- while (n-- > 0) {
- /* Write the read command */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
- MMW_FEE_CTRL_READ);
- /* Wait until EEPROM is ready (should be quick). */
- fee_wait(ioaddr, 10, 100);
- /* Read the value. */
- *--b = ((mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)) << 8) |
- mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
- }
- }
- #ifdef WIRELESS_EXT /* if the wireless extension exists in the kernel */
- /*------------------------------------------------------------------*/
- /*
- * Write bytes from the Frequency EEPROM (frequency select cards).
- * This is a bit complicated, because the frequency EEPROM has to
- * be unprotected and the write enabled.
- * Jean II
- */
- static void fee_write(unsigned long ioaddr, /* I/O port of the card */
- u16 o, /* destination offset */
- u16 * b, /* data buffer */
- int n)
- { /* number of registers */
- b += n; /* Position at the end of the area. */
- #ifdef EEPROM_IS_PROTECTED /* disabled */
- #ifdef DOESNT_SEEM_TO_WORK /* disabled */
- /* Ask to read the protected register */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRREAD);
- fee_wait(ioaddr, 10, 100);
- /* Read the protected register. */
- printk("Protected 2: %02X-%02Xn",
- mmc_in(ioaddr, mmroff(0, mmr_fee_data_h)),
- mmc_in(ioaddr, mmroff(0, mmr_fee_data_l)));
- #endif /* DOESNT_SEEM_TO_WORK */
- /* Enable protected register. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PREN);
- fee_wait(ioaddr, 10, 100);
- /* Unprotect area. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
- #ifdef DOESNT_SEEM_TO_WORK /* disabled */
- /* or use: */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRCLEAR);
- #endif /* DOESNT_SEEM_TO_WORK */
- fee_wait(ioaddr, 10, 100);
- #endif /* EEPROM_IS_PROTECTED */
- /* Write enable. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_EN);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WREN);
- fee_wait(ioaddr, 10, 100);
- /* Write the EEPROM address. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), o + n - 1);
- /* Loop on all buffer */
- while (n-- > 0) {
- /* Write the value. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_data_h), (*--b) >> 8);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_data_l), *b & 0xFF);
- /* Write the write command. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
- MMW_FEE_CTRL_WRITE);
- /* WaveLAN documentation says to wait at least 10 ms for EEBUSY = 0 */
- mdelay(10);
- fee_wait(ioaddr, 10, 100);
- }
- /* Write disable. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), MMW_FEE_ADDR_DS);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_WDS);
- fee_wait(ioaddr, 10, 100);
- #ifdef EEPROM_IS_PROTECTED /* disabled */
- /* Reprotect EEPROM. */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x00);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl), MMW_FEE_CTRL_PRWRITE);
- fee_wait(ioaddr, 10, 100);
- #endif /* EEPROM_IS_PROTECTED */
- }
- #endif /* WIRELESS_EXT */
- /************************ I82586 SUBROUTINES *************************/
- /*
- * Useful subroutines to manage the Ethernet controller
- */
- /*------------------------------------------------------------------*/
- /*
- * Read bytes from the on-board RAM.
- * Why does inlining this function make it fail?
- */
- static /*inline */ void obram_read(unsigned long ioaddr,
- u16 o, u8 * b, int n)
- {
- outw(o, PIOR1(ioaddr));
- insw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
- }
- /*------------------------------------------------------------------*/
- /*
- * Write bytes to the on-board RAM.
- */
- static inline void obram_write(unsigned long ioaddr, u16 o, u8 * b, int n)
- {
- outw(o, PIOR1(ioaddr));
- outsw(PIOP1(ioaddr), (unsigned short *) b, (n + 1) >> 1);
- }
- /*------------------------------------------------------------------*/
- /*
- * Acknowledge the reading of the status issued by the i82586.
- */
- static void wv_ack(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- u16 scb_cs;
- int i;
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- scb_cs &= SCB_ST_INT;
- if (scb_cs == 0)
- return;
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- set_chan_attn(ioaddr, lp->hacr);
- for (i = 1000; i > 0; i--) {
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- if (scb_cs == 0)
- break;
- udelay(10);
- }
- udelay(100);
- #ifdef DEBUG_CONFIG_ERROR
- if (i <= 0)
- printk(KERN_INFO
- "%s: wv_ack(): board not accepting command.n",
- dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * Set channel attention bit and busy wait until command has
- * completed, then acknowledge completion of the command.
- */
- static inline int wv_synchronous_cmd(device * dev, const char *str)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- u16 scb_cmd;
- ach_t cb;
- int i;
- scb_cmd = SCB_CMD_CUC & SCB_CMD_CUC_GO;
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cmd, sizeof(scb_cmd));
- set_chan_attn(ioaddr, lp->hacr);
- for (i = 1000; i > 0; i--) {
- obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb,
- sizeof(cb));
- if (cb.ac_status & AC_SFLD_C)
- break;
- udelay(10);
- }
- udelay(100);
- if (i <= 0 || !(cb.ac_status & AC_SFLD_OK)) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO "%s: %s failed; status = 0x%xn",
- dev->name, str, cb.ac_status);
- #endif
- #ifdef DEBUG_I82586_SHOW
- wv_scb_show(ioaddr);
- #endif
- return -1;
- }
- /* Ack the status */
- wv_ack(dev);
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Configuration commands completion interrupt.
- * Check if done, and if OK.
- */
- static inline int
- wv_config_complete(device * dev, unsigned long ioaddr, net_local * lp)
- {
- unsigned short mcs_addr;
- unsigned short status;
- int ret;
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: ->wv_config_complete()n", dev->name);
- #endif
- mcs_addr = lp->tx_first_in_use + sizeof(ac_tx_t) + sizeof(ac_nop_t)
- + sizeof(tbd_t) + sizeof(ac_cfg_t) + sizeof(ac_ias_t);
- /* Read the status of the last command (set mc list). */
- obram_read(ioaddr, acoff(mcs_addr, ac_status),
- (unsigned char *) &status, sizeof(status));
- /* If not completed -> exit */
- if ((status & AC_SFLD_C) == 0)
- ret = 0; /* Not ready to be scrapped */
- else {
- #ifdef DEBUG_CONFIG_ERROR
- unsigned short cfg_addr;
- unsigned short ias_addr;
- /* Check mc_config command */
- if ((status & AC_SFLD_OK) != AC_SFLD_OK)
- printk(KERN_INFO
- "%s: wv_config_complete(): set_multicast_address failed; status = 0x%xn",
- dev->name, status);
- /* check ia-config command */
- ias_addr = mcs_addr - sizeof(ac_ias_t);
- obram_read(ioaddr, acoff(ias_addr, ac_status),
- (unsigned char *) &status, sizeof(status));
- if ((status & AC_SFLD_OK) != AC_SFLD_OK)
- printk(KERN_INFO
- "%s: wv_config_complete(): set_MAC_address failed; status = 0x%xn",
- dev->name, status);
- /* Check config command. */
- cfg_addr = ias_addr - sizeof(ac_cfg_t);
- obram_read(ioaddr, acoff(cfg_addr, ac_status),
- (unsigned char *) &status, sizeof(status));
- if ((status & AC_SFLD_OK) != AC_SFLD_OK)
- printk(KERN_INFO
- "%s: wv_config_complete(): configure failed; status = 0x%xn",
- dev->name, status);
- #endif /* DEBUG_CONFIG_ERROR */
- ret = 1; /* Ready to be scrapped */
- }
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: <-wv_config_complete() - %dn", dev->name,
- ret);
- #endif
- return ret;
- }
- /*------------------------------------------------------------------*/
- /*
- * Command completion interrupt.
- * Reclaim as many freed tx buffers as we can.
- * (called in wavelan_interrupt()).
- * Note : the spinlock is already grabbed for us.
- */
- static int wv_complete(device * dev, unsigned long ioaddr, net_local * lp)
- {
- int nreaped = 0;
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: ->wv_complete()n", dev->name);
- #endif
- /* Loop on all the transmit buffers */
- while (lp->tx_first_in_use != I82586NULL) {
- unsigned short tx_status;
- /* Read the first transmit buffer */
- obram_read(ioaddr, acoff(lp->tx_first_in_use, ac_status),
- (unsigned char *) &tx_status,
- sizeof(tx_status));
- /* If not completed -> exit */
- if ((tx_status & AC_SFLD_C) == 0)
- break;
- /* Hack for reconfiguration */
- if (tx_status == 0xFFFF)
- if (!wv_config_complete(dev, ioaddr, lp))
- break; /* Not completed */
- /* We now remove this buffer */
- nreaped++;
- --lp->tx_n_in_use;
- /*
- if (lp->tx_n_in_use > 0)
- printk("%c", "0123456789abcdefghijk"[lp->tx_n_in_use]);
- */
- /* Was it the last one? */
- if (lp->tx_n_in_use <= 0)
- lp->tx_first_in_use = I82586NULL;
- else {
- /* Next one in the chain */
- lp->tx_first_in_use += TXBLOCKZ;
- if (lp->tx_first_in_use >=
- OFFSET_CU +
- NTXBLOCKS * TXBLOCKZ) lp->tx_first_in_use -=
- NTXBLOCKS * TXBLOCKZ;
- }
- /* Hack for reconfiguration */
- if (tx_status == 0xFFFF)
- continue;
- /* Now, check status of the finished command */
- if (tx_status & AC_SFLD_OK) {
- int ncollisions;
- lp->stats.tx_packets++;
- ncollisions = tx_status & AC_SFLD_MAXCOL;
- lp->stats.collisions += ncollisions;
- #ifdef DEBUG_TX_INFO
- if (ncollisions > 0)
- printk(KERN_DEBUG
- "%s: wv_complete(): tx completed after %d collisions.n",
- dev->name, ncollisions);
- #endif
- } else {
- lp->stats.tx_errors++;
- if (tx_status & AC_SFLD_S10) {
- lp->stats.tx_carrier_errors++;
- #ifdef DEBUG_TX_FAIL
- printk(KERN_DEBUG
- "%s: wv_complete(): tx error: no CS.n",
- dev->name);
- #endif
- }
- if (tx_status & AC_SFLD_S9) {
- lp->stats.tx_carrier_errors++;
- #ifdef DEBUG_TX_FAIL
- printk(KERN_DEBUG
- "%s: wv_complete(): tx error: lost CTS.n",
- dev->name);
- #endif
- }
- if (tx_status & AC_SFLD_S8) {
- lp->stats.tx_fifo_errors++;
- #ifdef DEBUG_TX_FAIL
- printk(KERN_DEBUG
- "%s: wv_complete(): tx error: slow DMA.n",
- dev->name);
- #endif
- }
- if (tx_status & AC_SFLD_S6) {
- lp->stats.tx_heartbeat_errors++;
- #ifdef DEBUG_TX_FAIL
- printk(KERN_DEBUG
- "%s: wv_complete(): tx error: heart beat.n",
- dev->name);
- #endif
- }
- if (tx_status & AC_SFLD_S5) {
- lp->stats.tx_aborted_errors++;
- #ifdef DEBUG_TX_FAIL
- printk(KERN_DEBUG
- "%s: wv_complete(): tx error: too many collisions.n",
- dev->name);
- #endif
- }
- }
- #ifdef DEBUG_TX_INFO
- printk(KERN_DEBUG
- "%s: wv_complete(): tx completed, tx_status 0x%04xn",
- dev->name, tx_status);
- #endif
- }
- #ifdef DEBUG_INTERRUPT_INFO
- if (nreaped > 1)
- printk(KERN_DEBUG "%s: wv_complete(): reaped %dn",
- dev->name, nreaped);
- #endif
- /*
- * Inform upper layers.
- */
- if (lp->tx_n_in_use < NTXBLOCKS - 1) {
- netif_wake_queue(dev);
- }
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: <-wv_complete()n", dev->name);
- #endif
- return nreaped;
- }
- /*------------------------------------------------------------------*/
- /*
- * Reconfigure the i82586, or at least ask for it.
- * Because wv_82586_config uses a transmission buffer, we must do it
- * when we are sure that there is one left, so we do it now
- * or in wavelan_packet_xmit() (I can't find any better place,
- * wavelan_interrupt is not an option), so you may experience
- * delays sometimes.
- */
- static inline void wv_82586_reconfig(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long flags;
- /* Arm the flag, will be cleard in wv_82586_config() */
- lp->reconfig_82586 = 1;
- /* Check if we can do it now ! */
- if((netif_running(dev)) && !(netif_queue_stopped(dev))) {
- wv_splhi(lp, &flags);
- /* May fail */
- wv_82586_config(dev);
- wv_splx(lp, &flags);
- }
- else {
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_DEBUG
- "%s: wv_82586_reconfig(): delayed (state = %lX)n",
- dev->name, dev->state);
- #endif
- }
- }
- /********************* DEBUG & INFO SUBROUTINES *********************/
- /*
- * This routine is used in the code to show information for debugging.
- * Most of the time, it dumps the contents of hardware structures.
- */
- #ifdef DEBUG_PSA_SHOW
- /*------------------------------------------------------------------*/
- /*
- * Print the formatted contents of the Parameter Storage Area.
- */
- static void wv_psa_show(psa_t * p)
- {
- printk(KERN_DEBUG "##### WaveLAN PSA contents: #####n");
- printk(KERN_DEBUG "psa_io_base_addr_1: 0x%02X %02X %02X %02Xn",
- p->psa_io_base_addr_1,
- p->psa_io_base_addr_2,
- p->psa_io_base_addr_3, p->psa_io_base_addr_4);
- printk(KERN_DEBUG "psa_rem_boot_addr_1: 0x%02X %02X %02Xn",
- p->psa_rem_boot_addr_1,
- p->psa_rem_boot_addr_2, p->psa_rem_boot_addr_3);
- printk(KERN_DEBUG "psa_holi_params: 0x%02x, ", p->psa_holi_params);
- printk("psa_int_req_no: %dn", p->psa_int_req_no);
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG
- "psa_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
- p->psa_unused0[0], p->psa_unused0[1], p->psa_unused0[2],
- p->psa_unused0[3], p->psa_unused0[4], p->psa_unused0[5],
- p->psa_unused0[6]);
- #endif /* DEBUG_SHOW_UNUSED */
- printk(KERN_DEBUG
- "psa_univ_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02xn",
- p->psa_univ_mac_addr[0], p->psa_univ_mac_addr[1],
- p->psa_univ_mac_addr[2], p->psa_univ_mac_addr[3],
- p->psa_univ_mac_addr[4], p->psa_univ_mac_addr[5]);
- printk(KERN_DEBUG
- "psa_local_mac_addr[]: %02x:%02x:%02x:%02x:%02x:%02xn",
- p->psa_local_mac_addr[0], p->psa_local_mac_addr[1],
- p->psa_local_mac_addr[2], p->psa_local_mac_addr[3],
- p->psa_local_mac_addr[4], p->psa_local_mac_addr[5]);
- printk(KERN_DEBUG "psa_univ_local_sel: %d, ",
- p->psa_univ_local_sel);
- printk("psa_comp_number: %d, ", p->psa_comp_number);
- printk("psa_thr_pre_set: 0x%02xn", p->psa_thr_pre_set);
- printk(KERN_DEBUG "psa_feature_select/decay_prm: 0x%02x, ",
- p->psa_feature_select);
- printk("psa_subband/decay_update_prm: %dn", p->psa_subband);
- printk(KERN_DEBUG "psa_quality_thr: 0x%02x, ", p->psa_quality_thr);
- printk("psa_mod_delay: 0x%02xn", p->psa_mod_delay);
- printk(KERN_DEBUG "psa_nwid: 0x%02x%02x, ", p->psa_nwid[0],
- p->psa_nwid[1]);
- printk("psa_nwid_select: %dn", p->psa_nwid_select);
- printk(KERN_DEBUG "psa_encryption_select: %d, ",
- p->psa_encryption_select);
- printk
- ("psa_encryption_key[]: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02xn",
- p->psa_encryption_key[0], p->psa_encryption_key[1],
- p->psa_encryption_key[2], p->psa_encryption_key[3],
- p->psa_encryption_key[4], p->psa_encryption_key[5],
- p->psa_encryption_key[6], p->psa_encryption_key[7]);
- printk(KERN_DEBUG "psa_databus_width: %dn", p->psa_databus_width);
- printk(KERN_DEBUG "psa_call_code/auto_squelch: 0x%02x, ",
- p->psa_call_code[0]);
- printk
- ("psa_call_code[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
- p->psa_call_code[0], p->psa_call_code[1], p->psa_call_code[2],
- p->psa_call_code[3], p->psa_call_code[4], p->psa_call_code[5],
- p->psa_call_code[6], p->psa_call_code[7]);
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG "psa_reserved[]: %02X:%02X:%02X:%02Xn",
- p->psa_reserved[0],
- p->psa_reserved[1], p->psa_reserved[2], p->psa_reserved[3]);
- #endif /* DEBUG_SHOW_UNUSED */
- printk(KERN_DEBUG "psa_conf_status: %d, ", p->psa_conf_status);
- printk("psa_crc: 0x%02x%02x, ", p->psa_crc[0], p->psa_crc[1]);
- printk("psa_crc_status: 0x%02xn", p->psa_crc_status);
- } /* wv_psa_show */
- #endif /* DEBUG_PSA_SHOW */
- #ifdef DEBUG_MMC_SHOW
- /*------------------------------------------------------------------*/
- /*
- * Print the formatted status of the Modem Management Controller.
- * This function needs to be completed.
- */
- static void wv_mmc_show(device * dev)
- {
- unsigned long ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv;
- mmr_t m;
- /* Basic check */
- if (hasr_read(ioaddr) & HASR_NO_CLK) {
- printk(KERN_WARNING
- "%s: wv_mmc_show: modem not connectedn",
- dev->name);
- return;
- }
- /* Read the mmc */
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
- mmc_read(ioaddr, 0, (u8 *) & m, sizeof(m));
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
- #ifdef WIRELESS_EXT /* if wireless extension exists in the kernel */
- /* Don't forget to update statistics */
- lp->wstats.discard.nwid +=
- (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
- #endif /* WIRELESS_EXT */
- printk(KERN_DEBUG "##### WaveLAN modem status registers: #####n");
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG
- "mmc_unused0[]: %02X:%02X:%02X:%02X:%02X:%02X:%02X:%02Xn",
- m.mmr_unused0[0], m.mmr_unused0[1], m.mmr_unused0[2],
- m.mmr_unused0[3], m.mmr_unused0[4], m.mmr_unused0[5],
- m.mmr_unused0[6], m.mmr_unused0[7]);
- #endif /* DEBUG_SHOW_UNUSED */
- printk(KERN_DEBUG "Encryption algorithm: %02X - Status: %02Xn",
- m.mmr_des_avail, m.mmr_des_status);
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG "mmc_unused1[]: %02X:%02X:%02X:%02X:%02Xn",
- m.mmr_unused1[0],
- m.mmr_unused1[1],
- m.mmr_unused1[2], m.mmr_unused1[3], m.mmr_unused1[4]);
- #endif /* DEBUG_SHOW_UNUSED */
- printk(KERN_DEBUG "dce_status: 0x%x [%s%s%s%s]n",
- m.mmr_dce_status,
- (m.
- mmr_dce_status & MMR_DCE_STATUS_RX_BUSY) ?
- "energy detected," : "",
- (m.
- mmr_dce_status & MMR_DCE_STATUS_LOOPT_IND) ?
- "loop test indicated," : "",
- (m.
- mmr_dce_status & MMR_DCE_STATUS_TX_BUSY) ?
- "transmitter on," : "",
- (m.
- mmr_dce_status & MMR_DCE_STATUS_JBR_EXPIRED) ?
- "jabber timer expired," : "");
- printk(KERN_DEBUG "Dsp ID: %02Xn", m.mmr_dsp_id);
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG "mmc_unused2[]: %02X:%02Xn",
- m.mmr_unused2[0], m.mmr_unused2[1]);
- #endif /* DEBUG_SHOW_UNUSED */
- printk(KERN_DEBUG "# correct_nwid: %d, # wrong_nwid: %dn",
- (m.mmr_correct_nwid_h << 8) | m.mmr_correct_nwid_l,
- (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l);
- printk(KERN_DEBUG "thr_pre_set: 0x%x [current signal %s]n",
- m.mmr_thr_pre_set & MMR_THR_PRE_SET,
- (m.
- mmr_thr_pre_set & MMR_THR_PRE_SET_CUR) ? "above" :
- "below");
- printk(KERN_DEBUG "signal_lvl: %d [%s], ",
- m.mmr_signal_lvl & MMR_SIGNAL_LVL,
- (m.
- mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) ? "new msg" :
- "no new msg");
- printk("silence_lvl: %d [%s], ",
- m.mmr_silence_lvl & MMR_SILENCE_LVL,
- (m.
- mmr_silence_lvl & MMR_SILENCE_LVL_VALID) ? "update done" :
- "no new update");
- printk("sgnl_qual: 0x%x [%s]n", m.mmr_sgnl_qual & MMR_SGNL_QUAL,
- (m.
- mmr_sgnl_qual & MMR_SGNL_QUAL_ANT) ? "Antenna 1" :
- "Antenna 0");
- #ifdef DEBUG_SHOW_UNUSED
- printk(KERN_DEBUG "netw_id_l: %xn", m.mmr_netw_id_l);
- #endif /* DEBUG_SHOW_UNUSED */
- } /* wv_mmc_show */
- #endif /* DEBUG_MMC_SHOW */
- #ifdef DEBUG_I82586_SHOW
- /*------------------------------------------------------------------*/
- /*
- * Print the last block of the i82586 memory.
- */
- static void wv_scb_show(unsigned long ioaddr)
- {
- scb_t scb;
- obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
- sizeof(scb));
- printk(KERN_DEBUG "##### WaveLAN system control block: #####n");
- printk(KERN_DEBUG "status: ");
- printk("stat 0x%x[%s%s%s%s] ",
- (scb.
- scb_status & (SCB_ST_CX | SCB_ST_FR | SCB_ST_CNA |
- SCB_ST_RNR)) >> 12,
- (scb.
- scb_status & SCB_ST_CX) ? "command completion interrupt," :
- "", (scb.scb_status & SCB_ST_FR) ? "frame received," : "",
- (scb.
- scb_status & SCB_ST_CNA) ? "command unit not active," : "",
- (scb.
- scb_status & SCB_ST_RNR) ? "receiving unit not ready," :
- "");
- printk("cus 0x%x[%s%s%s] ", (scb.scb_status & SCB_ST_CUS) >> 8,
- ((scb.scb_status & SCB_ST_CUS) ==
- SCB_ST_CUS_IDLE) ? "idle" : "",
- ((scb.scb_status & SCB_ST_CUS) ==
- SCB_ST_CUS_SUSP) ? "suspended" : "",
- ((scb.scb_status & SCB_ST_CUS) ==
- SCB_ST_CUS_ACTV) ? "active" : "");
- printk("rus 0x%x[%s%s%s%s]n", (scb.scb_status & SCB_ST_RUS) >> 4,
- ((scb.scb_status & SCB_ST_RUS) ==
- SCB_ST_RUS_IDLE) ? "idle" : "",
- ((scb.scb_status & SCB_ST_RUS) ==
- SCB_ST_RUS_SUSP) ? "suspended" : "",
- ((scb.scb_status & SCB_ST_RUS) ==
- SCB_ST_RUS_NRES) ? "no resources" : "",
- ((scb.scb_status & SCB_ST_RUS) ==
- SCB_ST_RUS_RDY) ? "ready" : "");
- printk(KERN_DEBUG "command: ");
- printk("ack 0x%x[%s%s%s%s] ",
- (scb.
- scb_command & (SCB_CMD_ACK_CX | SCB_CMD_ACK_FR |
- SCB_CMD_ACK_CNA | SCB_CMD_ACK_RNR)) >> 12,
- (scb.
- scb_command & SCB_CMD_ACK_CX) ? "ack cmd completion," : "",
- (scb.
- scb_command & SCB_CMD_ACK_FR) ? "ack frame received," : "",
- (scb.
- scb_command & SCB_CMD_ACK_CNA) ? "ack CU not active," : "",
- (scb.
- scb_command & SCB_CMD_ACK_RNR) ? "ack RU not ready," : "");
- printk("cuc 0x%x[%s%s%s%s%s] ",
- (scb.scb_command & SCB_CMD_CUC) >> 8,
- ((scb.scb_command & SCB_CMD_CUC) ==
- SCB_CMD_CUC_NOP) ? "nop" : "",
- ((scb.scb_command & SCB_CMD_CUC) ==
- SCB_CMD_CUC_GO) ? "start cbl_offset" : "",
- ((scb.scb_command & SCB_CMD_CUC) ==
- SCB_CMD_CUC_RES) ? "resume execution" : "",
- ((scb.scb_command & SCB_CMD_CUC) ==
- SCB_CMD_CUC_SUS) ? "suspend execution" : "",
- ((scb.scb_command & SCB_CMD_CUC) ==
- SCB_CMD_CUC_ABT) ? "abort execution" : "");
- printk("ruc 0x%x[%s%s%s%s%s]n",
- (scb.scb_command & SCB_CMD_RUC) >> 4,
- ((scb.scb_command & SCB_CMD_RUC) ==
- SCB_CMD_RUC_NOP) ? "nop" : "",
- ((scb.scb_command & SCB_CMD_RUC) ==
- SCB_CMD_RUC_GO) ? "start rfa_offset" : "",
- ((scb.scb_command & SCB_CMD_RUC) ==
- SCB_CMD_RUC_RES) ? "resume reception" : "",
- ((scb.scb_command & SCB_CMD_RUC) ==
- SCB_CMD_RUC_SUS) ? "suspend reception" : "",
- ((scb.scb_command & SCB_CMD_RUC) ==
- SCB_CMD_RUC_ABT) ? "abort reception" : "");
- printk(KERN_DEBUG "cbl_offset 0x%x ", scb.scb_cbl_offset);
- printk("rfa_offset 0x%xn", scb.scb_rfa_offset);
- printk(KERN_DEBUG "crcerrs %d ", scb.scb_crcerrs);
- printk("alnerrs %d ", scb.scb_alnerrs);
- printk("rscerrs %d ", scb.scb_rscerrs);
- printk("ovrnerrs %dn", scb.scb_ovrnerrs);
- }
- /*------------------------------------------------------------------*/
- /*
- * Print the formatted status of the i82586's receive unit.
- */
- static void wv_ru_show(device * dev)
- {
- /* net_local *lp = (net_local *) dev->priv; */
- printk(KERN_DEBUG
- "##### WaveLAN i82586 receiver unit status: #####n");
- printk(KERN_DEBUG "ru:");
- /*
- * Not implemented yet
- */
- printk("n");
- } /* wv_ru_show */
- /*------------------------------------------------------------------*/
- /*
- * Display info about one control block of the i82586 memory.
- */
- static void wv_cu_show_one(device * dev, net_local * lp, int i, u16 p)
- {
- unsigned long ioaddr;
- ac_tx_t actx;
- ioaddr = dev->base_addr;
- printk("%d: 0x%x:", i, p);
- obram_read(ioaddr, p, (unsigned char *) &actx, sizeof(actx));
- printk(" status=0x%x,", actx.tx_h.ac_status);
- printk(" command=0x%x,", actx.tx_h.ac_command);
- /*
- {
- tbd_t tbd;
- obram_read(ioaddr, actx.tx_tbd_offset, (unsigned char *)&tbd, sizeof(tbd));
- printk(" tbd_status=0x%x,", tbd.tbd_status);
- }
- */
- printk("|");
- }
- /*------------------------------------------------------------------*/
- /*
- * Print status of the command unit of the i82586.
- */
- static void wv_cu_show(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned int i;
- u16 p;
- printk(KERN_DEBUG
- "##### WaveLAN i82586 command unit status: #####n");
- printk(KERN_DEBUG);
- for (i = 0, p = lp->tx_first_in_use; i < NTXBLOCKS; i++) {
- wv_cu_show_one(dev, lp, i, p);
- p += TXBLOCKZ;
- if (p >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
- p -= NTXBLOCKS * TXBLOCKZ;
- }
- printk("n");
- }
- #endif /* DEBUG_I82586_SHOW */
- #ifdef DEBUG_DEVICE_SHOW
- /*------------------------------------------------------------------*/
- /*
- * Print the formatted status of the WaveLAN PCMCIA device driver.
- */
- static void wv_dev_show(device * dev)
- {
- printk(KERN_DEBUG "dev:");
- printk(" state=%lX,", dev->state);
- printk(" trans_start=%ld,", dev->trans_start);
- printk(" flags=0x%x,", dev->flags);
- printk("n");
- } /* wv_dev_show */
- /*------------------------------------------------------------------*/
- /*
- * Print the formatted status of the WaveLAN PCMCIA device driver's
- * private information.
- */
- static void wv_local_show(device * dev)
- {
- net_local *lp;
- lp = (net_local *) dev->priv;
- printk(KERN_DEBUG "local:");
- printk(" tx_n_in_use=%d,", lp->tx_n_in_use);
- printk(" hacr=0x%x,", lp->hacr);
- printk(" rx_head=0x%x,", lp->rx_head);
- printk(" rx_last=0x%x,", lp->rx_last);
- printk(" tx_first_free=0x%x,", lp->tx_first_free);
- printk(" tx_first_in_use=0x%x,", lp->tx_first_in_use);
- printk("n");
- } /* wv_local_show */
- #endif /* DEBUG_DEVICE_SHOW */
- #if defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO)
- /*------------------------------------------------------------------*/
- /*
- * Dump packet header (and content if necessary) on the screen
- */
- static inline void wv_packet_info(u8 * p, /* Packet to dump */
- int length, /* Length of the packet */
- char *msg1, /* Name of the device */
- char *msg2)
- { /* Name of the function */
- int i;
- int maxi;
- printk(KERN_DEBUG
- "%s: %s(): dest %02X:%02X:%02X:%02X:%02X:%02X, length %dn",
- msg1, msg2, p[0], p[1], p[2], p[3], p[4], p[5], length);
- printk(KERN_DEBUG
- "%s: %s(): src %02X:%02X:%02X:%02X:%02X:%02X, type 0x%02X%02Xn",
- msg1, msg2, p[6], p[7], p[8], p[9], p[10], p[11], p[12],
- p[13]);
- #ifdef DEBUG_PACKET_DUMP
- printk(KERN_DEBUG "data="");
- if ((maxi = length) > DEBUG_PACKET_DUMP)
- maxi = DEBUG_PACKET_DUMP;
- for (i = 14; i < maxi; i++)
- if (p[i] >= ' ' && p[i] <= '~')
- printk(" %c", p[i]);
- else
- printk("%02X", p[i]);
- if (maxi < length)
- printk("..");
- printk(""n");
- printk(KERN_DEBUG "n");
- #endif /* DEBUG_PACKET_DUMP */
- }
- #endif /* defined(DEBUG_RX_INFO) || defined(DEBUG_TX_INFO) */
- /*------------------------------------------------------------------*/
- /*
- * This is the information which is displayed by the driver at startup.
- * There are lots of flags for configuring it to your liking.
- */
- static inline void wv_init_info(device * dev)
- {
- short ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv;
- psa_t psa;
- int i;
- /* Read the parameter storage area */
- psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
- #ifdef DEBUG_PSA_SHOW
- wv_psa_show(&psa);
- #endif
- #ifdef DEBUG_MMC_SHOW
- wv_mmc_show(dev);
- #endif
- #ifdef DEBUG_I82586_SHOW
- wv_cu_show(dev);
- #endif
- #ifdef DEBUG_BASIC_SHOW
- /* Now, let's go for the basic stuff. */
- printk(KERN_NOTICE "%s: WaveLAN at %#x,", dev->name, ioaddr);
- for (i = 0; i < WAVELAN_ADDR_SIZE; i++)
- printk("%s%02X", (i == 0) ? " " : ":", dev->dev_addr[i]);
- printk(", IRQ %d", dev->irq);
- /* Print current network ID. */
- if (psa.psa_nwid_select)
- printk(", nwid 0x%02X-%02X", psa.psa_nwid[0],
- psa.psa_nwid[1]);
- else
- printk(", nwid off");
- /* If 2.00 card */
- if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
- unsigned short freq;
- /* Ask the EEPROM to read the frequency from the first area. */
- fee_read(ioaddr, 0x00, &freq, 1);
- /* Print frequency */
- printk(", 2.00, %ld", (freq >> 6) + 2400L);
- /* Hack! */
- if (freq & 0x20)
- printk(".5");
- } else {
- printk(", PC");
- switch (psa.psa_comp_number) {
- case PSA_COMP_PC_AT_915:
- case PSA_COMP_PC_AT_2400:
- printk("-AT");
- break;
- case PSA_COMP_PC_MC_915:
- case PSA_COMP_PC_MC_2400:
- printk("-MC");
- break;
- case PSA_COMP_PCMCIA_915:
- printk("MCIA");
- break;
- default:
- printk("?");
- }
- printk(", ");
- switch (psa.psa_subband) {
- case PSA_SUBBAND_915:
- printk("915");
- break;
- case PSA_SUBBAND_2425:
- printk("2425");
- break;
- case PSA_SUBBAND_2460:
- printk("2460");
- break;
- case PSA_SUBBAND_2484:
- printk("2484");
- break;
- case PSA_SUBBAND_2430_5:
- printk("2430.5");
- break;
- default:
- printk("?");
- }
- }
- printk(" MHzn");
- #endif /* DEBUG_BASIC_SHOW */
- #ifdef DEBUG_VERSION_SHOW
- /* Print version information */
- printk(KERN_NOTICE "%s", version);
- #endif
- } /* wv_init_info */
- /********************* IOCTL, STATS & RECONFIG *********************/
- /*
- * We found here routines that are called by Linux on different
- * occasions after the configuration and not for transmitting data
- * These may be called when the user use ifconfig, /proc/net/dev
- * or wireless extensions
- */
- /*------------------------------------------------------------------*/
- /*
- * Get the current Ethernet statistics. This may be called with the
- * card open or closed.
- * Used when the user read /proc/net/dev
- */
- static en_stats *wavelan_get_stats(device * dev)
- {
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: <>wavelan_get_stats()n", dev->name);
- #endif
- return (&((net_local *) dev->priv)->stats);
- }
- /*------------------------------------------------------------------*/
- /*
- * Set or clear the multicast filter for this adaptor.
- * num_addrs == -1 Promiscuous mode, receive all packets
- * num_addrs == 0 Normal mode, clear multicast list
- * num_addrs > 0 Multicast mode, receive normal and MC packets,
- * and do best-effort filtering.
- */
- static void wavelan_set_multicast_list(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_set_multicast_list()n",
- dev->name);
- #endif
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG
- "%s: wavelan_set_multicast_list(): setting Rx mode %02X to %d addresses.n",
- dev->name, dev->flags, dev->mc_count);
- #endif
- /* Are we asking for promiscuous mode,
- * or all multicast addresses (we don't have that!)
- * or too many multicast addresses for the hardware filter? */
- if ((dev->flags & IFF_PROMISC) ||
- (dev->flags & IFF_ALLMULTI) ||
- (dev->mc_count > I82586_MAX_MULTICAST_ADDRESSES)) {
- /*
- * Enable promiscuous mode: receive all packets.
- */
- if (!lp->promiscuous) {
- lp->promiscuous = 1;
- lp->mc_count = 0;
- wv_82586_reconfig(dev);
- /* Tell the kernel that we are doing a really bad job. */
- dev->flags |= IFF_PROMISC;
- }
- } else
- /* Are there multicast addresses to send? */
- if (dev->mc_list != (struct dev_mc_list *) NULL) {
- /*
- * Disable promiscuous mode, but receive all packets
- * in multicast list
- */
- #ifdef MULTICAST_AVOID
- if (lp->promiscuous || (dev->mc_count != lp->mc_count))
- #endif
- {
- lp->promiscuous = 0;
- lp->mc_count = dev->mc_count;
- wv_82586_reconfig(dev);
- }
- } else {
- /*
- * Switch to normal mode: disable promiscuous mode and
- * clear the multicast list.
- */
- if (lp->promiscuous || lp->mc_count == 0) {
- lp->promiscuous = 0;
- lp->mc_count = 0;
- wv_82586_reconfig(dev);
- }
- }
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_set_multicast_list()n",
- dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * This function doesn't exist.
- * (Note : it was a nice way to test the reconfigure stuff...)
- */
- #ifdef SET_MAC_ADDRESS
- static int wavelan_set_mac_address(device * dev, void *addr)
- {
- struct sockaddr *mac = addr;
- /* Copy the address. */
- memcpy(dev->dev_addr, mac->sa_data, WAVELAN_ADDR_SIZE);
- /* Reconfigure the beast. */
- wv_82586_reconfig(dev);
- return 0;
- }
- #endif /* SET_MAC_ADDRESS */
- #ifdef WIRELESS_EXT /* if wireless extensions exist in the kernel */
- /*------------------------------------------------------------------*/
- /*
- * Frequency setting (for hardware capable of it)
- * It's a bit complicated and you don't really want to look into it.
- * (called in wavelan_ioctl)
- */
- static inline int wv_set_frequency(unsigned long ioaddr, /* I/O port of the card */
- iw_freq * frequency)
- {
- const int BAND_NUM = 10; /* Number of bands */
- long freq = 0L; /* offset to 2.4 GHz in .5 MHz */
- #ifdef DEBUG_IOCTL_INFO
- int i;
- #endif
- /* Setting by frequency */
- /* Theoretically, you may set any frequency between
- * the two limits with a 0.5 MHz precision. In practice,
- * I don't want you to have trouble with local regulations.
- */
- if ((frequency->e == 1) &&
- (frequency->m >= (int) 2.412e8)
- && (frequency->m <= (int) 2.487e8)) {
- freq = ((frequency->m / 10000) - 24000L) / 5;
- }
- /* Setting by channel (same as wfreqsel) */
- /* Warning: each channel is 22 MHz wide, so some of the channels
- * will interfere. */
- if ((frequency->e == 0) && (frequency->m < BAND_NUM)) {
- /* Get frequency offset. */
- freq = channel_bands[frequency->m] >> 1;
- }
- /* Verify that the frequency is allowed. */
- if (freq != 0L) {
- u16 table[10]; /* Authorized frequency table */
- /* Read the frequency table. */
- fee_read(ioaddr, 0x71, table, 10);
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG "Frequency table: ");
- for (i = 0; i < 10; i++) {
- printk(" %04X", table[i]);
- }
- printk("n");
- #endif
- /* Look in the table to see whether the frequency is allowed. */
- if (!(table[9 - ((freq - 24) / 16)] &
- (1 << ((freq - 24) % 16)))) return -EINVAL; /* not allowed */
- } else
- return -EINVAL;
- /* if we get a usable frequency */
- if (freq != 0L) {
- unsigned short area[16];
- unsigned short dac[2];
- unsigned short area_verify[16];
- unsigned short dac_verify[2];
- /* Corresponding gain (in the power adjust value table)
- * See AT&T WaveLAN Data Manual, REF 407-024689/E, page 3-8
- * and WCIN062D.DOC, page 6.2.9. */
- unsigned short power_limit[] = { 40, 80, 120, 160, 0 };
- int power_band = 0; /* Selected band */
- unsigned short power_adjust; /* Correct value */
- /* Search for the gain. */
- power_band = 0;
- while ((freq > power_limit[power_band]) &&
- (power_limit[++power_band] != 0));
- /* Read the first area. */
- fee_read(ioaddr, 0x00, area, 16);
- /* Read the DAC. */
- fee_read(ioaddr, 0x60, dac, 2);
- /* Read the new power adjust value. */
- fee_read(ioaddr, 0x6B - (power_band >> 1), &power_adjust,
- 1);
- if (power_band & 0x1)
- power_adjust >>= 8;
- else
- power_adjust &= 0xFF;
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
- for (i = 0; i < 16; i++) {
- printk(" %04X", area[i]);
- }
- printk("n");
- printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04Xn",
- dac[0], dac[1]);
- #endif
- /* Frequency offset (for info only) */
- area[0] = ((freq << 5) & 0xFFE0) | (area[0] & 0x1F);
- /* Receiver Principle main divider coefficient */
- area[3] = (freq >> 1) + 2400L - 352L;
- area[2] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
- /* Transmitter Main divider coefficient */
- area[13] = (freq >> 1) + 2400L;
- area[12] = ((freq & 0x1) << 4) | (area[2] & 0xFFEF);
- /* Other parts of the area are flags, bit streams or unused. */
- /* Set the value in the DAC. */
- dac[1] = ((power_adjust >> 1) & 0x7F) | (dac[1] & 0xFF80);
- dac[0] = ((power_adjust & 0x1) << 4) | (dac[0] & 0xFFEF);
- /* Write the first area. */
- fee_write(ioaddr, 0x00, area, 16);
- /* Write the DAC. */
- fee_write(ioaddr, 0x60, dac, 2);
- /* We now should verify here that the writing of the EEPROM went OK. */
- /* Reread the first area. */
- fee_read(ioaddr, 0x00, area_verify, 16);
- /* Reread the DAC. */
- fee_read(ioaddr, 0x60, dac_verify, 2);
- /* Compare. */
- if (memcmp(area, area_verify, 16 * 2) ||
- memcmp(dac, dac_verify, 2 * 2)) {
- #ifdef DEBUG_IOCTL_ERROR
- printk(KERN_INFO
- "WaveLAN: wv_set_frequency: unable to write new frequency to EEPROM(?).n");
- #endif
- return -EOPNOTSUPP;
- }
- /* We must download the frequency parameters to the
- * synthesizers (from the EEPROM - area 1)
- * Note: as the EEPROM is automatically decremented, we set the end
- * if the area... */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x0F);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
- MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
- /* Wait until the download is finished. */
- fee_wait(ioaddr, 100, 100);
- /* We must now download the power adjust value (gain) to
- * the synthesizers (from the EEPROM - area 7 - DAC). */
- mmc_out(ioaddr, mmwoff(0, mmw_fee_addr), 0x61);
- mmc_out(ioaddr, mmwoff(0, mmw_fee_ctrl),
- MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD);
- /* Wait for the download to finish. */
- fee_wait(ioaddr, 100, 100);
- #ifdef DEBUG_IOCTL_INFO
- /* Verification of what we have done */
- printk(KERN_DEBUG "WaveLAN EEPROM Area 1: ");
- for (i = 0; i < 16; i++) {
- printk(" %04X", area_verify[i]);
- }
- printk("n");
- printk(KERN_DEBUG "WaveLAN EEPROM DAC: %04X %04Xn",
- dac_verify[0], dac_verify[1]);
- #endif
- return 0;
- } else
- return -EINVAL; /* Bah, never get there... */
- }
- /*------------------------------------------------------------------*/
- /*
- * Give the list of available frequencies.
- */
- static inline int wv_frequency_list(unsigned long ioaddr, /* I/O port of the card */
- iw_freq * list, /* List of frequencies to fill */
- int max)
- { /* Maximum number of frequencies */
- u16 table[10]; /* Authorized frequency table */
- long freq = 0L; /* offset to 2.4 GHz in .5 MHz + 12 MHz */
- int i; /* index in the table */
- int c = 0; /* Channel number */
- /* Read the frequency table. */
- fee_read(ioaddr, 0x71 /* frequency table */ , table, 10);
- /* Check all frequencies. */
- i = 0;
- for (freq = 0; freq < 150; freq++)
- /* Look in the table if the frequency is allowed */
- if (table[9 - (freq / 16)] & (1 << (freq % 16))) {
- /* Compute approximate channel number */
- while ((((channel_bands[c] >> 1) - 24) < freq) &&
- (c < NELS(channel_bands)))
- c++;
- list[i].i = c; /* Set the list index */
- /* put in the list */
- list[i].m = (((freq + 24) * 5) + 24000L) * 10000;
- list[i++].e = 1;
- /* Check number. */
- if (i >= max)
- return (i);
- }
- return (i);
- }
- #ifdef WIRELESS_SPY
- /*------------------------------------------------------------------*/
- /*
- * Gather wireless spy statistics: for each packet, compare the source
- * address with our list, and if they match, get the statistics.
- * Sorry, but this function really needs the wireless extensions.
- */
- static inline void wl_spy_gather(device * dev, u8 * mac, /* MAC address */
- u8 * stats)
- { /* Statistics to gather */
- net_local *lp = (net_local *) dev->priv;
- int i;
- /* Check all addresses. */
- for (i = 0; i < lp->spy_number; i++)
- /* If match */
- if (!memcmp(mac, lp->spy_address[i], WAVELAN_ADDR_SIZE)) {
- /* Update statistics */
- lp->spy_stat[i].qual = stats[2] & MMR_SGNL_QUAL;
- lp->spy_stat[i].level = stats[0] & MMR_SIGNAL_LVL;
- lp->spy_stat[i].noise = stats[1] & MMR_SILENCE_LVL;
- lp->spy_stat[i].updated = 0x7;
- }
- }
- #endif /* WIRELESS_SPY */
- #ifdef HISTOGRAM
- /*------------------------------------------------------------------*/
- /*
- * This function calculates a histogram of the signal level.
- * As the noise is quite constant, it's like doing it on the SNR.
- * We have defined a set of interval (lp->his_range), and each time
- * the level goes in that interval, we increment the count (lp->his_sum).
- * With this histogram you may detect if one WaveLAN is really weak,
- * or you may also calculate the mean and standard deviation of the level.
- */
- static inline void wl_his_gather(device * dev, u8 * stats)
- { /* Statistics to gather */
- net_local *lp = (net_local *) dev->priv;
- u8 level = stats[0] & MMR_SIGNAL_LVL;
- int i;
- /* Find the correct interval. */
- i = 0;
- while ((i < (lp->his_number - 1))
- && (level >= lp->his_range[i++]));
- /* Increment interval counter. */
- (lp->his_sum[i])++;
- }
- #endif /* HISTOGRAM */
- /*------------------------------------------------------------------*/
- /*
- * Perform ioctl for configuration and information.
- * It is here that the wireless extensions are treated (iwconfig).
- */
- static int wavelan_ioctl(struct net_device *dev, /* device on which the ioctl is applied */
- struct ifreq *rq, /* data passed */
- int cmd)
- { /* ioctl number */
- unsigned long ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv; /* lp is not unused */
- struct iwreq *wrq = (struct iwreq *) rq;
- psa_t psa;
- mm_t m;
- unsigned long flags;
- int ret = 0;
- int err = 0;
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_ioctl(cmd=0x%X)n", dev->name,
- cmd);
- #endif
- /* Disable interrupts and save flags. */
- wv_splhi(lp, &flags);
-
- /* Look what is the request */
- switch (cmd) {
- /* --------------- WIRELESS EXTENSIONS --------------- */
- case SIOCGIWNAME:
- strcpy(wrq->u.name, "WaveLAN");
- break;
- case SIOCSIWNWID:
- /* Set NWID in WaveLAN. */
- if (!wrq->u.nwid.disabled) {
- /* Set NWID in psa */
- psa.psa_nwid[0] =
- (wrq->u.nwid.value & 0xFF00) >> 8;
- psa.psa_nwid[1] = wrq->u.nwid.value & 0xFF;
- psa.psa_nwid_select = 0x01;
- psa_write(ioaddr, lp->hacr,
- (char *) psa.psa_nwid - (char *) &psa,
- (unsigned char *) psa.psa_nwid, 3);
- /* Set NWID in mmc. */
- m.w.mmw_netw_id_l = psa.psa_nwid[1];
- m.w.mmw_netw_id_h = psa.psa_nwid[0];
- mmc_write(ioaddr,
- (char *) &m.w.mmw_netw_id_l -
- (char *) &m,
- (unsigned char *) &m.w.mmw_netw_id_l, 2);
- mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel), 0x00);
- } else {
- /* Disable NWID in the psa. */
- psa.psa_nwid_select = 0x00;
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_nwid_select -
- (char *) &psa,
- (unsigned char *) &psa.psa_nwid_select,
- 1);
- /* Disable NWID in the mmc (no filtering). */
- mmc_out(ioaddr, mmwoff(0, mmw_loopt_sel),
- MMW_LOOPT_SEL_DIS_NWID);
- }
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, lp->hacr);
- break;
- case SIOCGIWNWID:
- /* Read the NWID. */
- psa_read(ioaddr, lp->hacr,
- (char *) psa.psa_nwid - (char *) &psa,
- (unsigned char *) psa.psa_nwid, 3);
- wrq->u.nwid.value =
- (psa.psa_nwid[0] << 8) + psa.psa_nwid[1];
- wrq->u.nwid.disabled = !(psa.psa_nwid_select);
- wrq->u.nwid.fixed = 1; /* Superfluous */
- break;
- case SIOCSIWFREQ:
- /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
- if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY)))
- ret = wv_set_frequency(ioaddr, &(wrq->u.freq));
- else
- ret = -EOPNOTSUPP;
- break;
- case SIOCGIWFREQ:
- /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable).
- * Does it work for everybody, especially old cards? */
- if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
- unsigned short freq;
- /* Ask the EEPROM to read the frequency from the first area. */
- fee_read(ioaddr, 0x00, &freq, 1);
- wrq->u.freq.m = ((freq >> 5) * 5 + 24000L) * 10000;
- wrq->u.freq.e = 1;
- } else {
- psa_read(ioaddr, lp->hacr,
- (char *) &psa.psa_subband - (char *) &psa,
- (unsigned char *) &psa.psa_subband, 1);
- if (psa.psa_subband <= 4) {
- wrq->u.freq.m =
- fixed_bands[psa.psa_subband];
- wrq->u.freq.e = (psa.psa_subband != 0);
- } else
- ret = -EOPNOTSUPP;
- }
- break;
- case SIOCSIWSENS:
- /* Set the level threshold. */
- /* We should complain loudly if wrq->u.sens.fixed = 0, because we
- * can't set auto mode... */
- psa.psa_thr_pre_set = wrq->u.sens.value & 0x3F;
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_thr_pre_set - (char *) &psa,
- (unsigned char *) &psa.psa_thr_pre_set, 1);
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, lp->hacr);
- mmc_out(ioaddr, mmwoff(0, mmw_thr_pre_set),
- psa.psa_thr_pre_set);
- break;
- case SIOCGIWSENS:
- /* Read the level threshold. */
- psa_read(ioaddr, lp->hacr,
- (char *) &psa.psa_thr_pre_set - (char *) &psa,
- (unsigned char *) &psa.psa_thr_pre_set, 1);
- wrq->u.sens.value = psa.psa_thr_pre_set & 0x3F;
- wrq->u.sens.fixed = 1;
- break;
- case SIOCSIWENCODE:
- /* Set encryption key */
- if (!mmc_encr(ioaddr)) {
- ret = -EOPNOTSUPP;
- break;
- }
- /* Basic checking... */
- if (wrq->u.encoding.pointer != (caddr_t) 0) {
- /* Check the size of the key */
- if (wrq->u.encoding.length != 8) {
- ret = -EINVAL;
- break;
- }
- /* Copy the key in the driver */
- wv_splx(lp, &flags);
- err = copy_from_user(psa.psa_encryption_key,
- wrq->u.encoding.pointer,
- wrq->u.encoding.length);
- wv_splhi(lp, &flags);
- if (err) {
- ret = -EFAULT;
- break;
- }
- psa.psa_encryption_select = 1;
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_encryption_select -
- (char *) &psa,
- (unsigned char *) &psa.
- psa_encryption_select, 8 + 1);
- mmc_out(ioaddr, mmwoff(0, mmw_encr_enable),
- MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE);
- mmc_write(ioaddr, mmwoff(0, mmw_encr_key),
- (unsigned char *) &psa.
- psa_encryption_key, 8);
- }
- if (wrq->u.encoding.flags & IW_ENCODE_DISABLED) { /* disable encryption */
- psa.psa_encryption_select = 0;
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_encryption_select -
- (char *) &psa,
- (unsigned char *) &psa.
- psa_encryption_select, 1);
- mmc_out(ioaddr, mmwoff(0, mmw_encr_enable), 0);
- }
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, lp->hacr);
- break;
- case SIOCGIWENCODE:
- /* Read the encryption key */
- if (!mmc_encr(ioaddr)) {
- ret = -EOPNOTSUPP;
- break;
- }
- /* only super-user can see encryption key */
- if (!capable(CAP_NET_ADMIN)) {
- ret = -EPERM;
- break;
- }
- /* Basic checking... */
- if (wrq->u.encoding.pointer != (caddr_t) 0) {
- /* Verify the user buffer */
- ret =
- verify_area(VERIFY_WRITE,
- wrq->u.encoding.pointer, 8);
- if (ret)
- break;
- psa_read(ioaddr, lp->hacr,
- (char *) &psa.psa_encryption_select -
- (char *) &psa,
- (unsigned char *) &psa.
- psa_encryption_select, 1 + 8);
- /* encryption is enabled ? */
- if (psa.psa_encryption_select)
- wrq->u.encoding.flags = IW_ENCODE_ENABLED;
- else
- wrq->u.encoding.flags = IW_ENCODE_DISABLED;
- wrq->u.encoding.flags |= mmc_encr(ioaddr);
- /* Copy the key to the user buffer */
- wrq->u.encoding.length = 8;
- wv_splx(lp, &flags);
- if (copy_to_user(wrq->u.encoding.pointer,
- psa.psa_encryption_key, 8))
- ret = -EFAULT;
- wv_splhi(lp, &flags);
- }
- break;
- case SIOCGIWRANGE:
- /* basic checking */
- if (wrq->u.data.pointer != (caddr_t) 0) {
- struct iw_range range;
- /* Set the length (very important for backward
- * compatibility) */
- wrq->u.data.length = sizeof(struct iw_range);
- /* Set all the info we don't care or don't know
- * about to zero */
- memset(&range, 0, sizeof(range));
- /* Set the Wireless Extension versions */
- range.we_version_compiled = WIRELESS_EXT;
- range.we_version_source = 9;
- /* Set information in the range struct. */
- range.throughput = 1.6 * 1000 * 1000; /* don't argue on this ! */
- range.min_nwid = 0x0000;
- range.max_nwid = 0xFFFF;
- /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable). */
- if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
- range.num_channels = 10;
- range.num_frequency =
- wv_frequency_list(ioaddr, range.freq,
- IW_MAX_FREQUENCIES);
- } else
- range.num_channels = range.num_frequency =
- 0;
- range.sensitivity = 0x3F;
- range.max_qual.qual = MMR_SGNL_QUAL;
- range.max_qual.level = MMR_SIGNAL_LVL;
- range.max_qual.noise = MMR_SILENCE_LVL;
- range.avg_qual.qual = MMR_SGNL_QUAL; /* Always max */
- /* Need to get better values for those two */
- range.avg_qual.level = 30;
- range.avg_qual.noise = 8;
- range.num_bitrates = 1;
- range.bitrate[0] = 2000000; /* 2 Mb/s */
- /* Encryption supported ? */
- if (mmc_encr(ioaddr)) {
- range.encoding_size[0] = 8; /* DES = 64 bits key */
- range.num_encoding_sizes = 1;
- range.max_encoding_tokens = 1; /* Only one key possible */
- } else {
- range.num_encoding_sizes = 0;
- range.max_encoding_tokens = 0;
- }
- /* Copy structure to the user buffer. */
- wv_splx(lp, &flags);
- if (copy_to_user(wrq->u.data.pointer,
- &range,
- sizeof(struct iw_range)))
- ret = -EFAULT;
- wv_splhi(lp, &flags);
- }
- break;
- case SIOCGIWPRIV:
- /* Basic checking */
- if (wrq->u.data.pointer != (caddr_t) 0) {
- struct iw_priv_args priv[] = {
- /* { cmd,
- set_args,
- get_args,
- name } */
- { SIOCSIPQTHR,
- IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
- 0,
- "setqualthr" },
- { SIOCGIPQTHR,
- 0,
- IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | 1,
- "getqualthr" },
- { SIOCSIPHISTO,
- IW_PRIV_TYPE_BYTE | 16,
- 0,
- "sethisto" },
- { SIOCGIPHISTO,
- 0,
- IW_PRIV_TYPE_INT | 16,
- "gethisto" },
- };
- /* Set the number of available ioctls. */
- wrq->u.data.length = 4;
- /* Copy structure to the user buffer. */
- wv_splx(lp, &flags);
- if (copy_to_user(wrq->u.data.pointer,
- (u8 *) priv,
- sizeof(priv)))
- ret = -EFAULT;
- wv_splhi(lp, &flags);
- }
- break;
- #ifdef WIRELESS_SPY
- case SIOCSIWSPY:
- /* Set the spy list */
- /* Check the number of addresses. */
- if (wrq->u.data.length > IW_MAX_SPY) {
- ret = -E2BIG;
- break;
- }
- lp->spy_number = wrq->u.data.length;
- /* Are there are addresses to copy? */
- if (lp->spy_number > 0) {
- struct sockaddr address[IW_MAX_SPY];
- int i;
- /* Copy addresses to the driver. */
- wv_splx(lp, &flags);
- err = copy_from_user(address,
- wrq->u.data.pointer,
- sizeof(struct sockaddr)
- * lp->spy_number);
- wv_splhi(lp, &flags);
- if (err) {
- ret = -EFAULT;
- break;
- }
- /* Copy addresses to the lp structure. */
- for (i = 0; i < lp->spy_number; i++) {
- memcpy(lp->spy_address[i],
- address[i].sa_data,
- WAVELAN_ADDR_SIZE);
- }
- /* Reset structure. */
- memset(lp->spy_stat, 0x00,
- sizeof(iw_qual) * IW_MAX_SPY);
- #ifdef DEBUG_IOCTL_INFO
- printk(KERN_DEBUG
- "SetSpy: set of new addresses is: n");
- for (i = 0; i < wrq->u.data.length; i++)
- printk(KERN_DEBUG
- "%02X:%02X:%02X:%02X:%02X:%02X n",
- lp->spy_address[i][0],
- lp->spy_address[i][1],
- lp->spy_address[i][2],
- lp->spy_address[i][3],
- lp->spy_address[i][4],
- lp->spy_address[i][5]);
- #endif /* DEBUG_IOCTL_INFO */
- }
- break;
- case SIOCGIWSPY:
- /* Get the spy list and spy stats. */
- /* Set the number of addresses */
- wrq->u.data.length = lp->spy_number;
- /* Does the user want to have the addresses back? */
- if ((lp->spy_number > 0)
- && (wrq->u.data.pointer != (caddr_t) 0)) {
- struct sockaddr address[IW_MAX_SPY];
- int i;
- /* Copy addresses from the lp structure. */
- for (i = 0; i < lp->spy_number; i++) {
- memcpy(address[i].sa_data,
- lp->spy_address[i],
- WAVELAN_ADDR_SIZE);
- address[i].sa_family = AF_UNIX;
- }
- /* Copy addresses to the user buffer. */
- wv_splx(lp, &flags);
- err = copy_to_user(wrq->u.data.pointer,
- address,
- sizeof(struct sockaddr)
- * lp->spy_number);
- /* Copy stats to the user buffer (just after). */
- err |= copy_to_user(wrq->u.data.pointer
- + (sizeof(struct sockaddr)
- * lp->spy_number),
- lp->spy_stat,
- sizeof(iw_qual) * lp->spy_number);
- wv_splhi(lp, &flags);
- if (err) {
- ret = -EFAULT;
- break;
- }
- /* Reset updated flags. */
- for (i = 0; i < lp->spy_number; i++)
- lp->spy_stat[i].updated = 0x0;
- }
- /* if(pointer != NULL) */
- break;
- #endif /* WIRELESS_SPY */
- /* ------------------ PRIVATE IOCTL ------------------ */
- case SIOCSIPQTHR:
- if (!capable(CAP_NET_ADMIN)) {
- ret = -EPERM;
- break;
- }
- psa.psa_quality_thr = *(wrq->u.name) & 0x0F;
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_quality_thr - (char *) &psa,
- (unsigned char *) &psa.psa_quality_thr, 1);
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, lp->hacr);
- mmc_out(ioaddr, mmwoff(0, mmw_quality_thr),
- psa.psa_quality_thr);
- break;
- case SIOCGIPQTHR:
- psa_read(ioaddr, lp->hacr,
- (char *) &psa.psa_quality_thr - (char *) &psa,
- (unsigned char *) &psa.psa_quality_thr, 1);
- *(wrq->u.name) = psa.psa_quality_thr & 0x0F;
- break;
- #ifdef HISTOGRAM
- case SIOCSIPHISTO:
- /* Verify that the user is root. */
- if (!capable(CAP_NET_ADMIN)) {
- ret = -EPERM;
- break;
- }
- /* Check the number of intervals. */
- if (wrq->u.data.length > 16) {
- ret = -E2BIG;
- break;
- }
- lp->his_number = wrq->u.data.length;
- /* Are there addresses to copy? */
- if (lp->his_number > 0) {
- /* Copy interval ranges to the driver */
- wv_splx(lp, &flags);
- err = copy_from_user(lp->his_range,
- wrq->u.data.pointer,
- sizeof(char) * lp->his_number);
- wv_splhi(lp, &flags);
- if (err) {
- ret = -EFAULT;
- break;
- }
- /* Reset structure. */
- memset(lp->his_sum, 0x00, sizeof(long) * 16);
- }
- break;
- case SIOCGIPHISTO:
- /* Set the number of intervals. */
- wrq->u.data.length = lp->his_number;
- /* Give back the distribution statistics */
- if ((lp->his_number > 0)
- && (wrq->u.data.pointer != (caddr_t) 0)) {
- /* Copy data to the user buffer. */
- wv_splx(lp, &flags);
- if (copy_to_user(wrq->u.data.pointer,
- lp->his_sum,
- sizeof(long) * lp->his_number);
- ret = -EFAULT;
- wv_splhi(lp, &flags);
- } /* if(pointer != NULL) */
- break;
- #endif /* HISTOGRAM */
- /* ------------------- OTHER IOCTL ------------------- */
- default:
- ret = -EOPNOTSUPP;
- } /* switch (cmd) */
- /* Enable interrupts and restore flags. */
- wv_splx(lp, &flags);
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_ioctl()n", dev->name);
- #endif
- return ret;
- }
- /*------------------------------------------------------------------*/
- /*
- * Get wireless statistics.
- * Called by /proc/net/wireless
- */
- static iw_stats *wavelan_get_wireless_stats(device * dev)
- {
- unsigned long ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv;
- mmr_t m;
- iw_stats *wstats;
- unsigned long flags;
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_get_wireless_stats()n",
- dev->name);
- #endif
- /* Check */
- if (lp == (net_local *) NULL)
- return (iw_stats *) NULL;
-
- /* Disable interrupts and save flags. */
- wv_splhi(lp, &flags);
-
- wstats = &lp->wstats;
- /* Get data from the mmc. */
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
- mmc_read(ioaddr, mmroff(0, mmr_dce_status), &m.mmr_dce_status, 1);
- mmc_read(ioaddr, mmroff(0, mmr_wrong_nwid_l), &m.mmr_wrong_nwid_l,
- 2);
- mmc_read(ioaddr, mmroff(0, mmr_thr_pre_set), &m.mmr_thr_pre_set,
- 4);
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
- /* Copy data to wireless stuff. */
- wstats->status = m.mmr_dce_status & MMR_DCE_STATUS;
- wstats->qual.qual = m.mmr_sgnl_qual & MMR_SGNL_QUAL;
- wstats->qual.level = m.mmr_signal_lvl & MMR_SIGNAL_LVL;
- wstats->qual.noise = m.mmr_silence_lvl & MMR_SILENCE_LVL;
- wstats->qual.updated = (((m. mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 7)
- | ((m.mmr_signal_lvl & MMR_SIGNAL_LVL_VALID) >> 6)
- | ((m.mmr_silence_lvl & MMR_SILENCE_LVL_VALID) >> 5));
- wstats->discard.nwid += (m.mmr_wrong_nwid_h << 8) | m.mmr_wrong_nwid_l;
- wstats->discard.code = 0L;
- wstats->discard.misc = 0L;
- /* Enable interrupts and restore flags. */
- wv_splx(lp, &flags);
- #ifdef DEBUG_IOCTL_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_get_wireless_stats()n",
- dev->name);
- #endif
- return &lp->wstats;
- }
- #endif /* WIRELESS_EXT */
- /************************* PACKET RECEPTION *************************/
- /*
- * This part deals with receiving the packets.
- * The interrupt handler gets an interrupt when a packet has been
- * successfully received and calls this part.
- */
- /*------------------------------------------------------------------*/
- /*
- * This routine does the actual copying of data (including the Ethernet
- * header structure) from the WaveLAN card to an sk_buff chain that
- * will be passed up to the network interface layer. NOTE: we
- * currently don't handle trailer protocols (neither does the rest of
- * the network interface), so if that is needed, it will (at least in
- * part) be added here. The contents of the receive ring buffer are
- * copied to a message chain that is then passed to the kernel.
- *
- * Note: if any errors occur, the packet is "dropped on the floor".
- * (called by wv_packet_rcv())
- */
- static inline void
- wv_packet_read(device * dev, u16 buf_off, int sksize)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- struct sk_buff *skb;
- #ifdef DEBUG_RX_TRACE
- printk(KERN_DEBUG "%s: ->wv_packet_read(0x%X, %d)n",
- dev->name, buf_off, sksize);
- #endif
- /* Allocate buffer for the data */
- if ((skb = dev_alloc_skb(sksize)) == (struct sk_buff *) NULL) {
- #ifdef DEBUG_RX_ERROR
- printk(KERN_INFO
- "%s: wv_packet_read(): could not alloc_skb(%d, GFP_ATOMIC).n",
- dev->name, sksize);
- #endif
- lp->stats.rx_dropped++;
- return;
- }
- skb->dev = dev;
- /* Copy the packet to the buffer. */
- obram_read(ioaddr, buf_off, skb_put(skb, sksize), sksize);
- skb->protocol = eth_type_trans(skb, dev);
- #ifdef DEBUG_RX_INFO
- wv_packet_info(skb->mac.raw, sksize, dev->name, "wv_packet_read");
- #endif /* DEBUG_RX_INFO */
- /* Statistics-gathering and associated stuff.
- * It seem a bit messy with all the define, but it's really simple... */
- #if defined(WIRELESS_SPY) || defined(HISTOGRAM)
- if (
- #ifdef WIRELESS_SPY
- (lp->spy_number > 0) ||
- #endif /* WIRELESS_SPY */
- #ifdef HISTOGRAM
- (lp->his_number > 0) ||
- #endif /* HISTOGRAM */
- 0) {
- u8 stats[3]; /* signal level, noise level, signal quality */
- /* Read signal level, silence level and signal quality bytes. */
- /* Note: in the PCMCIA hardware, these are part of the frame. It seems
- * that for the ISA hardware, it's nowhere to be found in the frame,
- * so I'm obliged to do this (it has a side effect on /proc/net/wireless).
- * Any ideas?
- */
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 1);
- mmc_read(ioaddr, mmroff(0, mmr_signal_lvl), stats, 3);
- mmc_out(ioaddr, mmwoff(0, mmw_freeze), 0);
- #ifdef DEBUG_RX_INFO
- printk(KERN_DEBUG
- "%s: wv_packet_read(): Signal level %d/63, Silence level %d/63, signal quality %d/16n",
- dev->name, stats[0] & 0x3F, stats[1] & 0x3F,
- stats[2] & 0x0F);
- #endif
- /* Spying stuff */
- #ifdef WIRELESS_SPY
- wl_spy_gather(dev, skb->mac.raw + WAVELAN_ADDR_SIZE,
- stats);
- #endif /* WIRELESS_SPY */
- #ifdef HISTOGRAM
- wl_his_gather(dev, stats);
- #endif /* HISTOGRAM */
- }
- #endif /* defined(WIRELESS_SPY) || defined(HISTOGRAM) */
- /*
- * Hand the packet to the network module.
- */
- netif_rx(skb);
- /* Keep statistics up to date */
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += sksize;
- #ifdef DEBUG_RX_TRACE
- printk(KERN_DEBUG "%s: <-wv_packet_read()n", dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * Transfer as many packets as we can
- * from the device RAM.
- * (called in wavelan_interrupt()).
- * Note : the spinlock is already grabbed for us.
- */
- static inline void wv_receive(device * dev)
- {
- unsigned long ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv;
- fd_t fd;
- rbd_t rbd;
- int nreaped = 0;
- #ifdef DEBUG_RX_TRACE
- printk(KERN_DEBUG "%s: ->wv_receive()n", dev->name);
- #endif
- /* Loop on each received packet. */
- for (;;) {
- obram_read(ioaddr, lp->rx_head, (unsigned char *) &fd,
- sizeof(fd));
- /* Note about the status :
- * It start up to be 0 (the value we set). Then, when the RU
- * grab the buffer to prepare for reception, it sets the
- * FD_STATUS_B flag. When the RU has finished receiving the
- * frame, it clears FD_STATUS_B, set FD_STATUS_C to indicate
- * completion and set the other flags to indicate the eventual
- * errors. FD_STATUS_OK indicates that the reception was OK.
- */
- /* If the current frame is not complete, we have reached the end. */
- if ((fd.fd_status & FD_STATUS_C) != FD_STATUS_C)
- break; /* This is how we exit the loop. */
- nreaped++;
- /* Check whether frame was correctly received. */
- if ((fd.fd_status & FD_STATUS_OK) == FD_STATUS_OK) {
- /* Does the frame contain a pointer to the data? Let's check. */
- if (fd.fd_rbd_offset != I82586NULL) {
- /* Read the receive buffer descriptor */
- obram_read(ioaddr, fd.fd_rbd_offset,
- (unsigned char *) &rbd,
- sizeof(rbd));
- #ifdef DEBUG_RX_ERROR
- if ((rbd.rbd_status & RBD_STATUS_EOF) !=
- RBD_STATUS_EOF) printk(KERN_INFO
- "%s: wv_receive(): missing EOF flag.n",
- dev->name);
- if ((rbd.rbd_status & RBD_STATUS_F) !=
- RBD_STATUS_F) printk(KERN_INFO
- "%s: wv_receive(): missing F flag.n",
- dev->name);
- #endif /* DEBUG_RX_ERROR */
- /* Read the packet and transmit to Linux */
- wv_packet_read(dev, rbd.rbd_bufl,
- rbd.
- rbd_status &
- RBD_STATUS_ACNT);
- }
- #ifdef DEBUG_RX_ERROR
- else /* if frame has no data */
- printk(KERN_INFO
- "%s: wv_receive(): frame has no data.n",
- dev->name);
- #endif
- } else { /* If reception was no successful */
- lp->stats.rx_errors++;
- #ifdef DEBUG_RX_INFO
- printk(KERN_DEBUG
- "%s: wv_receive(): frame not received successfully (%X).n",
- dev->name, fd.fd_status);
- #endif
- #ifdef DEBUG_RX_ERROR
- if ((fd.fd_status & FD_STATUS_S6) != 0)
- printk(KERN_INFO
- "%s: wv_receive(): no EOF flag.n",
- dev->name);
- #endif
- if ((fd.fd_status & FD_STATUS_S7) != 0) {
- lp->stats.rx_length_errors++;
- #ifdef DEBUG_RX_FAIL
- printk(KERN_DEBUG
- "%s: wv_receive(): frame too short.n",
- dev->name);
- #endif
- }
- if ((fd.fd_status & FD_STATUS_S8) != 0) {
- lp->stats.rx_over_errors++;
- #ifdef DEBUG_RX_FAIL
- printk(KERN_DEBUG
- "%s: wv_receive(): rx DMA overrun.n",
- dev->name);
- #endif
- }
- if ((fd.fd_status & FD_STATUS_S9) != 0) {
- lp->stats.rx_fifo_errors++;
- #ifdef DEBUG_RX_FAIL
- printk(KERN_DEBUG
- "%s: wv_receive(): ran out of resources.n",
- dev->name);
- #endif
- }
- if ((fd.fd_status & FD_STATUS_S10) != 0) {
- lp->stats.rx_frame_errors++;
- #ifdef DEBUG_RX_FAIL
- printk(KERN_DEBUG
- "%s: wv_receive(): alignment error.n",
- dev->name);
- #endif
- }
- if ((fd.fd_status & FD_STATUS_S11) != 0) {
- lp->stats.rx_crc_errors++;
- #ifdef DEBUG_RX_FAIL
- printk(KERN_DEBUG
- "%s: wv_receive(): CRC error.n",
- dev->name);
- #endif
- }
- }
- fd.fd_status = 0;
- obram_write(ioaddr, fdoff(lp->rx_head, fd_status),
- (unsigned char *) &fd.fd_status,
- sizeof(fd.fd_status));
- fd.fd_command = FD_COMMAND_EL;
- obram_write(ioaddr, fdoff(lp->rx_head, fd_command),
- (unsigned char *) &fd.fd_command,
- sizeof(fd.fd_command));
- fd.fd_command = 0;
- obram_write(ioaddr, fdoff(lp->rx_last, fd_command),
- (unsigned char *) &fd.fd_command,
- sizeof(fd.fd_command));
- lp->rx_last = lp->rx_head;
- lp->rx_head = fd.fd_link_offset;
- } /* for(;;) -> loop on all frames */
- #ifdef DEBUG_RX_INFO
- if (nreaped > 1)
- printk(KERN_DEBUG "%s: wv_receive(): reaped %dn",
- dev->name, nreaped);
- #endif
- #ifdef DEBUG_RX_TRACE
- printk(KERN_DEBUG "%s: <-wv_receive()n", dev->name);
- #endif
- }
- /*********************** PACKET TRANSMISSION ***********************/
- /*
- * This part deals with sending packets through the WaveLAN.
- *
- */
- /*------------------------------------------------------------------*/
- /*
- * This routine fills in the appropriate registers and memory
- * locations on the WaveLAN card and starts the card off on
- * the transmit.
- *
- * The principle:
- * Each block contains a transmit command, a NOP command,
- * a transmit block descriptor and a buffer.
- * The CU read the transmit block which point to the tbd,
- * read the tbd and the content of the buffer.
- * When it has finish with it, it goes to the next command
- * which in our case is the NOP. The NOP points on itself,
- * so the CU stop here.
- * When we add the next block, we modify the previous nop
- * to make it point on the new tx command.
- * Simple, isn't it ?
- *
- * (called in wavelan_packet_xmit())
- */
- static inline int wv_packet_write(device * dev, void *buf, short length)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- unsigned short txblock;
- unsigned short txpred;
- unsigned short tx_addr;
- unsigned short nop_addr;
- unsigned short tbd_addr;
- unsigned short buf_addr;
- ac_tx_t tx;
- ac_nop_t nop;
- tbd_t tbd;
- int clen = length;
- unsigned long flags;
- #ifdef DEBUG_TX_TRACE
- printk(KERN_DEBUG "%s: ->wv_packet_write(%d)n", dev->name,
- length);
- #endif
- /* Do we need some padding? */
- if (clen < ETH_ZLEN)
- clen = ETH_ZLEN;
- wv_splhi(lp, &flags);
- /* Check nothing bad has happened */
- if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
- #ifdef DEBUG_TX_ERROR
- printk(KERN_INFO "%s: wv_packet_write(): Tx queue full.n",
- dev->name);
- #endif
- wv_splx(lp, &flags);
- return 1;
- }
- /* Calculate addresses of next block and previous block. */
- txblock = lp->tx_first_free;
- txpred = txblock - TXBLOCKZ;
- if (txpred < OFFSET_CU)
- txpred += NTXBLOCKS * TXBLOCKZ;
- lp->tx_first_free += TXBLOCKZ;
- if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
- lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
- lp->tx_n_in_use++;
- /* Calculate addresses of the different parts of the block. */
- tx_addr = txblock;
- nop_addr = tx_addr + sizeof(tx);
- tbd_addr = nop_addr + sizeof(nop);
- buf_addr = tbd_addr + sizeof(tbd);
- /*
- * Transmit command
- */
- tx.tx_h.ac_status = 0;
- obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
- (unsigned char *) &tx.tx_h.ac_status,
- sizeof(tx.tx_h.ac_status));
- /*
- * NOP command
- */
- nop.nop_h.ac_status = 0;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
- (unsigned char *) &nop.nop_h.ac_status,
- sizeof(nop.nop_h.ac_status));
- nop.nop_h.ac_link = nop_addr;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
- (unsigned char *) &nop.nop_h.ac_link,
- sizeof(nop.nop_h.ac_link));
- /*
- * Transmit buffer descriptor
- */
- tbd.tbd_status = TBD_STATUS_EOF | (TBD_STATUS_ACNT & clen);
- tbd.tbd_next_bd_offset = I82586NULL;
- tbd.tbd_bufl = buf_addr;
- tbd.tbd_bufh = 0;
- obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd, sizeof(tbd));
- /*
- * Data
- */
- obram_write(ioaddr, buf_addr, buf, length);
- /*
- * Overwrite the predecessor NOP link
- * so that it points to this txblock.
- */
- nop_addr = txpred + sizeof(tx);
- nop.nop_h.ac_status = 0;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
- (unsigned char *) &nop.nop_h.ac_status,
- sizeof(nop.nop_h.ac_status));
- nop.nop_h.ac_link = txblock;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
- (unsigned char *) &nop.nop_h.ac_link,
- sizeof(nop.nop_h.ac_link));
- /* Keep stats up to date. */
- lp->stats.tx_bytes += length;
- if (lp->tx_first_in_use == I82586NULL)
- lp->tx_first_in_use = txblock;
- if (lp->tx_n_in_use < NTXBLOCKS - 1)
- netif_wake_queue(dev);
- wv_splx(lp, &flags);
-
- #ifdef DEBUG_TX_INFO
- wv_packet_info((u8 *) buf, length, dev->name,
- "wv_packet_write");
- #endif /* DEBUG_TX_INFO */
- #ifdef DEBUG_TX_TRACE
- printk(KERN_DEBUG "%s: <-wv_packet_write()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * This routine is called when we want to send a packet (NET3 callback)
- * In this routine, we check if the harware is ready to accept
- * the packet. We also prevent reentrance. Then we call the function
- * to send the packet.
- */
- static int wavelan_packet_xmit(struct sk_buff *skb, device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long flags;
- #ifdef DEBUG_TX_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_packet_xmit(0x%X)n", dev->name,
- (unsigned) skb);
- #endif
- /*
- * Block a timer-based transmit from overlapping.
- * In other words, prevent reentering this routine.
- */
- netif_stop_queue(dev);
- /* If somebody has asked to reconfigure the controller,
- * we can do it now.
- */
- if (lp->reconfig_82586) {
- wv_splhi(lp, &flags);
- wv_82586_config(dev);
- wv_splx(lp, &flags);
- /* Check that we can continue */
- if (lp->tx_n_in_use == (NTXBLOCKS - 1))
- return 1;
- }
- #ifdef DEBUG_TX_ERROR
- if (skb->next)
- printk(KERN_INFO "skb has nextn");
- #endif
- /* Write packet on the card */
- if(wv_packet_write(dev, skb->data, skb->len))
- return 1; /* We failed */
- dev_kfree_skb(skb);
- #ifdef DEBUG_TX_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_packet_xmit()n", dev->name);
- #endif
- return 0;
- }
- /*********************** HARDWARE CONFIGURATION ***********************/
- /*
- * This part does the real job of starting and configuring the hardware.
- */
- /*--------------------------------------------------------------------*/
- /*
- * Routine to initialize the Modem Management Controller.
- * (called by wv_hw_reset())
- */
- static inline int wv_mmc_init(device * dev)
- {
- unsigned long ioaddr = dev->base_addr;
- net_local *lp = (net_local *) dev->priv;
- psa_t psa;
- mmw_t m;
- int configured;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_mmc_init()n", dev->name);
- #endif
- /* Read the parameter storage area. */
- psa_read(ioaddr, lp->hacr, 0, (unsigned char *) &psa, sizeof(psa));
- #ifdef USE_PSA_CONFIG
- configured = psa.psa_conf_status & 1;
- #else
- configured = 0;
- #endif
- /* Is the PSA is not configured */
- if (!configured) {
- /* User will be able to configure NWID later (with iwconfig). */
- psa.psa_nwid[0] = 0;
- psa.psa_nwid[1] = 0;
- /* no NWID checking since NWID is not set */
- psa.psa_nwid_select = 0;
- /* Disable encryption */
- psa.psa_encryption_select = 0;
- /* Set to standard values:
- * 0x04 for AT,
- * 0x01 for MCA,
- * 0x04 for PCMCIA and 2.00 card (AT&T 407-024689/E document)
- */
- if (psa.psa_comp_number & 1)
- psa.psa_thr_pre_set = 0x01;
- else
- psa.psa_thr_pre_set = 0x04;
- psa.psa_quality_thr = 0x03;
- /* It is configured */
- psa.psa_conf_status |= 1;
- #ifdef USE_PSA_CONFIG
- /* Write the psa. */
- psa_write(ioaddr, lp->hacr,
- (char *) psa.psa_nwid - (char *) &psa,
- (unsigned char *) psa.psa_nwid, 4);
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_thr_pre_set - (char *) &psa,
- (unsigned char *) &psa.psa_thr_pre_set, 1);
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_quality_thr - (char *) &psa,
- (unsigned char *) &psa.psa_quality_thr, 1);
- psa_write(ioaddr, lp->hacr,
- (char *) &psa.psa_conf_status - (char *) &psa,
- (unsigned char *) &psa.psa_conf_status, 1);
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, lp->hacr);
- #endif
- }
- /* Zero the mmc structure. */
- memset(&m, 0x00, sizeof(m));
- /* Copy PSA info to the mmc. */
- m.mmw_netw_id_l = psa.psa_nwid[1];
- m.mmw_netw_id_h = psa.psa_nwid[0];
- if (psa.psa_nwid_select & 1)
- m.mmw_loopt_sel = 0x00;
- else
- m.mmw_loopt_sel = MMW_LOOPT_SEL_DIS_NWID;
- memcpy(&m.mmw_encr_key, &psa.psa_encryption_key,
- sizeof(m.mmw_encr_key));
- if (psa.psa_encryption_select)
- m.mmw_encr_enable =
- MMW_ENCR_ENABLE_EN | MMW_ENCR_ENABLE_MODE;
- else
- m.mmw_encr_enable = 0;
- m.mmw_thr_pre_set = psa.psa_thr_pre_set & 0x3F;
- m.mmw_quality_thr = psa.psa_quality_thr & 0x0F;
- /*
- * Set default modem control parameters.
- * See NCR document 407-0024326 Rev. A.
- */
- m.mmw_jabber_enable = 0x01;
- m.mmw_freeze = 0;
- m.mmw_anten_sel = MMW_ANTEN_SEL_ALG_EN;
- m.mmw_ifs = 0x20;
- m.mmw_mod_delay = 0x04;
- m.mmw_jam_time = 0x38;
- m.mmw_des_io_invert = 0;
- m.mmw_decay_prm = 0;
- m.mmw_decay_updat_prm = 0;
- /* Write all info to MMC. */
- mmc_write(ioaddr, 0, (u8 *) & m, sizeof(m));
- /* The following code starts the modem of the 2.00 frequency
- * selectable cards at power on. It's not strictly needed for the
- * following boots.
- * The original patch was by Joe Finney for the PCMCIA driver, but
- * I've cleaned it up a bit and added documentation.
- * Thanks to Loeke Brederveld from Lucent for the info.
- */
- /* Attempt to recognise 2.00 cards (2.4 GHz frequency selectable)
- * Does it work for everybody, especially old cards? */
- /* Note: WFREQSEL verifies that it is able to read a sensible
- * frequency from EEPROM (address 0x00) and that MMR_FEE_STATUS_ID
- * is 0xA (Xilinx version) or 0xB (Ariadne version).
- * My test is more crude but does work. */
- if (!(mmc_in(ioaddr, mmroff(0, mmr_fee_status)) &
- (MMR_FEE_STATUS_DWLD | MMR_FEE_STATUS_BUSY))) {
- /* We must download the frequency parameters to the
- * synthesizers (from the EEPROM - area 1)
- * Note: as the EEPROM is automatically decremented, we set the end
- * if the area... */
- m.mmw_fee_addr = 0x0F;
- m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
- mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
- (unsigned char *) &m.mmw_fee_ctrl, 2);
- /* Wait until the download is finished. */
- fee_wait(ioaddr, 100, 100);
- #ifdef DEBUG_CONFIG_INFO
- /* The frequency was in the last word downloaded. */
- mmc_read(ioaddr, (char *) &m.mmw_fee_data_l - (char *) &m,
- (unsigned char *) &m.mmw_fee_data_l, 2);
- /* Print some info for the user. */
- printk(KERN_DEBUG
- "%s: WaveLAN 2.00 recognised (frequency select). Current frequency = %ldn",
- dev->name,
- ((m.
- mmw_fee_data_h << 4) | (m.mmw_fee_data_l >> 4)) *
- 5 / 2 + 24000L);
- #endif
- /* We must now download the power adjust value (gain) to
- * the synthesizers (from the EEPROM - area 7 - DAC). */
- m.mmw_fee_addr = 0x61;
- m.mmw_fee_ctrl = MMW_FEE_CTRL_READ | MMW_FEE_CTRL_DWLD;
- mmc_write(ioaddr, (char *) &m.mmw_fee_ctrl - (char *) &m,
- (unsigned char *) &m.mmw_fee_ctrl, 2);
- /* Wait until the download is finished. */
- }
- /* if 2.00 card */
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_mmc_init()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Construct the fd and rbd structures.
- * Start the receive unit.
- * (called by wv_hw_reset())
- */
- static inline int wv_ru_start(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- u16 scb_cs;
- fd_t fd;
- rbd_t rbd;
- u16 rx;
- u16 rx_next;
- int i;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_ru_start()n", dev->name);
- #endif
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- if ((scb_cs & SCB_ST_RUS) == SCB_ST_RUS_RDY)
- return 0;
- lp->rx_head = OFFSET_RU;
- for (i = 0, rx = lp->rx_head; i < NRXBLOCKS; i++, rx = rx_next) {
- rx_next =
- (i == NRXBLOCKS - 1) ? lp->rx_head : rx + RXBLOCKZ;
- fd.fd_status = 0;
- fd.fd_command = (i == NRXBLOCKS - 1) ? FD_COMMAND_EL : 0;
- fd.fd_link_offset = rx_next;
- fd.fd_rbd_offset = rx + sizeof(fd);
- obram_write(ioaddr, rx, (unsigned char *) &fd, sizeof(fd));
- rbd.rbd_status = 0;
- rbd.rbd_next_rbd_offset = I82586NULL;
- rbd.rbd_bufl = rx + sizeof(fd) + sizeof(rbd);
- rbd.rbd_bufh = 0;
- rbd.rbd_el_size = RBD_EL | (RBD_SIZE & MAXDATAZ);
- obram_write(ioaddr, rx + sizeof(fd),
- (unsigned char *) &rbd, sizeof(rbd));
- lp->rx_last = rx;
- }
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_rfa_offset),
- (unsigned char *) &lp->rx_head, sizeof(lp->rx_head));
- scb_cs = SCB_CMD_RUC_GO;
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- set_chan_attn(ioaddr, lp->hacr);
- for (i = 1000; i > 0; i--) {
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- if (scb_cs == 0)
- break;
- udelay(10);
- }
- if (i <= 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wavelan_ru_start(): board not accepting command.n",
- dev->name);
- #endif
- return -1;
- }
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_ru_start()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Initialise the transmit blocks.
- * Start the command unit executing the NOP
- * self-loop of the first transmit block.
- *
- * Here we create the list of send buffers used to transmit packets
- * between the PC and the command unit. For each buffer, we create a
- * buffer descriptor (pointing on the buffer), a transmit command
- * (pointing to the buffer descriptor) and a NOP command.
- * The transmit command is linked to the NOP, and the NOP to itself.
- * When we will have finished executing the transmit command, we will
- * then loop on the NOP. By releasing the NOP link to a new command,
- * we may send another buffer.
- *
- * (called by wv_hw_reset())
- */
- static inline int wv_cu_start(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- int i;
- u16 txblock;
- u16 first_nop;
- u16 scb_cs;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_cu_start()n", dev->name);
- #endif
- lp->tx_first_free = OFFSET_CU;
- lp->tx_first_in_use = I82586NULL;
- for (i = 0, txblock = OFFSET_CU;
- i < NTXBLOCKS; i++, txblock += TXBLOCKZ) {
- ac_tx_t tx;
- ac_nop_t nop;
- tbd_t tbd;
- unsigned short tx_addr;
- unsigned short nop_addr;
- unsigned short tbd_addr;
- unsigned short buf_addr;
- tx_addr = txblock;
- nop_addr = tx_addr + sizeof(tx);
- tbd_addr = nop_addr + sizeof(nop);
- buf_addr = tbd_addr + sizeof(tbd);
- tx.tx_h.ac_status = 0;
- tx.tx_h.ac_command = acmd_transmit | AC_CFLD_I;
- tx.tx_h.ac_link = nop_addr;
- tx.tx_tbd_offset = tbd_addr;
- obram_write(ioaddr, tx_addr, (unsigned char *) &tx,
- sizeof(tx));
- nop.nop_h.ac_status = 0;
- nop.nop_h.ac_command = acmd_nop;
- nop.nop_h.ac_link = nop_addr;
- obram_write(ioaddr, nop_addr, (unsigned char *) &nop,
- sizeof(nop));
- tbd.tbd_status = TBD_STATUS_EOF;
- tbd.tbd_next_bd_offset = I82586NULL;
- tbd.tbd_bufl = buf_addr;
- tbd.tbd_bufh = 0;
- obram_write(ioaddr, tbd_addr, (unsigned char *) &tbd,
- sizeof(tbd));
- }
- first_nop =
- OFFSET_CU + (NTXBLOCKS - 1) * TXBLOCKZ + sizeof(ac_tx_t);
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_cbl_offset),
- (unsigned char *) &first_nop, sizeof(first_nop));
- scb_cs = SCB_CMD_CUC_GO;
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- set_chan_attn(ioaddr, lp->hacr);
- for (i = 1000; i > 0; i--) {
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cs, sizeof(scb_cs));
- if (scb_cs == 0)
- break;
- udelay(10);
- }
- if (i <= 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wavelan_cu_start(): board not accepting command.n",
- dev->name);
- #endif
- return -1;
- }
- lp->tx_n_in_use = 0;
- netif_start_queue(dev);
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_cu_start()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * This routine does a standard configuration of the WaveLAN
- * controller (i82586).
- *
- * It initialises the scp, iscp and scb structure
- * The first two are just pointers to the next.
- * The last one is used for basic configuration and for basic
- * communication (interrupt status).
- *
- * (called by wv_hw_reset())
- */
- static inline int wv_82586_start(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- scp_t scp; /* system configuration pointer */
- iscp_t iscp; /* intermediate scp */
- scb_t scb; /* system control block */
- ach_t cb; /* Action command header */
- u8 zeroes[512];
- int i;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_82586_start()n", dev->name);
- #endif
- /*
- * Clear the onboard RAM.
- */
- memset(&zeroes[0], 0x00, sizeof(zeroes));
- for (i = 0; i < I82586_MEMZ; i += sizeof(zeroes))
- obram_write(ioaddr, i, &zeroes[0], sizeof(zeroes));
- /*
- * Construct the command unit structures:
- * scp, iscp, scb, cb.
- */
- memset(&scp, 0x00, sizeof(scp));
- scp.scp_sysbus = SCP_SY_16BBUS;
- scp.scp_iscpl = OFFSET_ISCP;
- obram_write(ioaddr, OFFSET_SCP, (unsigned char *) &scp,
- sizeof(scp));
- memset(&iscp, 0x00, sizeof(iscp));
- iscp.iscp_busy = 1;
- iscp.iscp_offset = OFFSET_SCB;
- obram_write(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
- sizeof(iscp));
- /* Our first command is to reset the i82586. */
- memset(&scb, 0x00, sizeof(scb));
- scb.scb_command = SCB_CMD_RESET;
- scb.scb_cbl_offset = OFFSET_CU;
- scb.scb_rfa_offset = OFFSET_RU;
- obram_write(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
- sizeof(scb));
- set_chan_attn(ioaddr, lp->hacr);
- /* Wait for command to finish. */
- for (i = 1000; i > 0; i--) {
- obram_read(ioaddr, OFFSET_ISCP, (unsigned char *) &iscp,
- sizeof(iscp));
- if (iscp.iscp_busy == (unsigned short) 0)
- break;
- udelay(10);
- }
- if (i <= 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wv_82586_start(): iscp_busy timeout.n",
- dev->name);
- #endif
- return -1;
- }
- /* Check command completion. */
- for (i = 15; i > 0; i--) {
- obram_read(ioaddr, OFFSET_SCB, (unsigned char *) &scb,
- sizeof(scb));
- if (scb.scb_status == (SCB_ST_CX | SCB_ST_CNA))
- break;
- udelay(10);
- }
- if (i <= 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wv_82586_start(): status: expected 0x%02x, got 0x%02x.n",
- dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status);
- #endif
- return -1;
- }
- wv_ack(dev);
- /* Set the action command header. */
- memset(&cb, 0x00, sizeof(cb));
- cb.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_diagnose);
- cb.ac_link = OFFSET_CU;
- obram_write(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
- if (wv_synchronous_cmd(dev, "diag()") == -1)
- return -1;
- obram_read(ioaddr, OFFSET_CU, (unsigned char *) &cb, sizeof(cb));
- if (cb.ac_status & AC_SFLD_FAIL) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wv_82586_start(): i82586 Self Test failed.n",
- dev->name);
- #endif
- return -1;
- }
- #ifdef DEBUG_I82586_SHOW
- wv_scb_show(ioaddr);
- #endif
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_82586_start()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * This routine does a standard configuration of the WaveLAN
- * controller (i82586).
- *
- * This routine is a violent hack. We use the first free transmit block
- * to make our configuration. In the buffer area, we create the three
- * configuration commands (linked). We make the previous NOP point to
- * the beginning of the buffer instead of the tx command. After, we go
- * as usual to the NOP command.
- * Note that only the last command (mc_set) will generate an interrupt.
- *
- * (called by wv_hw_reset(), wv_82586_reconfig(), wavelan_packet_xmit())
- */
- static void wv_82586_config(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- unsigned short txblock;
- unsigned short txpred;
- unsigned short tx_addr;
- unsigned short nop_addr;
- unsigned short tbd_addr;
- unsigned short cfg_addr;
- unsigned short ias_addr;
- unsigned short mcs_addr;
- ac_tx_t tx;
- ac_nop_t nop;
- ac_cfg_t cfg; /* Configure action */
- ac_ias_t ias; /* IA-setup action */
- ac_mcs_t mcs; /* Multicast setup */
- struct dev_mc_list *dmi;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_82586_config()n", dev->name);
- #endif
- /* Check nothing bad has happened */
- if (lp->tx_n_in_use == (NTXBLOCKS - 1)) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO "%s: wv_82586_config(): Tx queue full.n",
- dev->name);
- #endif
- return;
- }
- /* Calculate addresses of next block and previous block. */
- txblock = lp->tx_first_free;
- txpred = txblock - TXBLOCKZ;
- if (txpred < OFFSET_CU)
- txpred += NTXBLOCKS * TXBLOCKZ;
- lp->tx_first_free += TXBLOCKZ;
- if (lp->tx_first_free >= OFFSET_CU + NTXBLOCKS * TXBLOCKZ)
- lp->tx_first_free -= NTXBLOCKS * TXBLOCKZ;
- lp->tx_n_in_use++;
- /* Calculate addresses of the different parts of the block. */
- tx_addr = txblock;
- nop_addr = tx_addr + sizeof(tx);
- tbd_addr = nop_addr + sizeof(nop);
- cfg_addr = tbd_addr + sizeof(tbd_t); /* beginning of the buffer */
- ias_addr = cfg_addr + sizeof(cfg);
- mcs_addr = ias_addr + sizeof(ias);
- /*
- * Transmit command
- */
- tx.tx_h.ac_status = 0xFFFF; /* Fake completion value */
- obram_write(ioaddr, toff(ac_tx_t, tx_addr, tx_h.ac_status),
- (unsigned char *) &tx.tx_h.ac_status,
- sizeof(tx.tx_h.ac_status));
- /*
- * NOP command
- */
- nop.nop_h.ac_status = 0;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
- (unsigned char *) &nop.nop_h.ac_status,
- sizeof(nop.nop_h.ac_status));
- nop.nop_h.ac_link = nop_addr;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
- (unsigned char *) &nop.nop_h.ac_link,
- sizeof(nop.nop_h.ac_link));
- /* Create a configure action. */
- memset(&cfg, 0x00, sizeof(cfg));
- /*
- * For Linux we invert AC_CFG_ALOC() so as to conform
- * to the way that net packets reach us from above.
- * (See also ac_tx_t.)
- *
- * Updated from Wavelan Manual WCIN085B
- */
- cfg.cfg_byte_cnt =
- AC_CFG_BYTE_CNT(sizeof(ac_cfg_t) - sizeof(ach_t));
- cfg.cfg_fifolim = AC_CFG_FIFOLIM(4);
- cfg.cfg_byte8 = AC_CFG_SAV_BF(1) | AC_CFG_SRDY(0);
- cfg.cfg_byte9 = AC_CFG_ELPBCK(0) |
- AC_CFG_ILPBCK(0) |
- AC_CFG_PRELEN(AC_CFG_PLEN_2) |
- AC_CFG_ALOC(1) | AC_CFG_ADDRLEN(WAVELAN_ADDR_SIZE);
- cfg.cfg_byte10 = AC_CFG_BOFMET(1) |
- AC_CFG_ACR(6) | AC_CFG_LINPRIO(0);
- cfg.cfg_ifs = 0x20;
- cfg.cfg_slotl = 0x0C;
- cfg.cfg_byte13 = AC_CFG_RETRYNUM(15) | AC_CFG_SLTTMHI(0);
- cfg.cfg_byte14 = AC_CFG_FLGPAD(0) |
- AC_CFG_BTSTF(0) |
- AC_CFG_CRC16(0) |
- AC_CFG_NCRC(0) |
- AC_CFG_TNCRS(1) |
- AC_CFG_MANCH(0) |
- AC_CFG_BCDIS(0) | AC_CFG_PRM(lp->promiscuous);
- cfg.cfg_byte15 = AC_CFG_ICDS(0) |
- AC_CFG_CDTF(0) | AC_CFG_ICSS(0) | AC_CFG_CSTF(0);
- /*
- cfg.cfg_min_frm_len = AC_CFG_MNFRM(64);
- */
- cfg.cfg_min_frm_len = AC_CFG_MNFRM(8);
- cfg.cfg_h.ac_command = (AC_CFLD_CMD & acmd_configure);
- cfg.cfg_h.ac_link = ias_addr;
- obram_write(ioaddr, cfg_addr, (unsigned char *) &cfg, sizeof(cfg));
- /* Set up the MAC address */
- memset(&ias, 0x00, sizeof(ias));
- ias.ias_h.ac_command = (AC_CFLD_CMD & acmd_ia_setup);
- ias.ias_h.ac_link = mcs_addr;
- memcpy(&ias.ias_addr[0], (unsigned char *) &dev->dev_addr[0],
- sizeof(ias.ias_addr));
- obram_write(ioaddr, ias_addr, (unsigned char *) &ias, sizeof(ias));
- /* Initialize adapter's Ethernet multicast addresses */
- memset(&mcs, 0x00, sizeof(mcs));
- mcs.mcs_h.ac_command = AC_CFLD_I | (AC_CFLD_CMD & acmd_mc_setup);
- mcs.mcs_h.ac_link = nop_addr;
- mcs.mcs_cnt = WAVELAN_ADDR_SIZE * lp->mc_count;
- obram_write(ioaddr, mcs_addr, (unsigned char *) &mcs, sizeof(mcs));
- /* Any address to set? */
- if (lp->mc_count) {
- for (dmi = dev->mc_list; dmi; dmi = dmi->next)
- outsw(PIOP1(ioaddr), (u16 *) dmi->dmi_addr,
- WAVELAN_ADDR_SIZE >> 1);
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_DEBUG
- "%s: wv_82586_config(): set %d multicast addresses:n",
- dev->name, lp->mc_count);
- for (dmi = dev->mc_list; dmi; dmi = dmi->next)
- printk(KERN_DEBUG
- " %02x:%02x:%02x:%02x:%02x:%02xn",
- dmi->dmi_addr[0], dmi->dmi_addr[1],
- dmi->dmi_addr[2], dmi->dmi_addr[3],
- dmi->dmi_addr[4], dmi->dmi_addr[5]);
- #endif
- }
- /*
- * Overwrite the predecessor NOP link
- * so that it points to the configure action.
- */
- nop_addr = txpred + sizeof(tx);
- nop.nop_h.ac_status = 0;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_status),
- (unsigned char *) &nop.nop_h.ac_status,
- sizeof(nop.nop_h.ac_status));
- nop.nop_h.ac_link = cfg_addr;
- obram_write(ioaddr, toff(ac_nop_t, nop_addr, nop_h.ac_link),
- (unsigned char *) &nop.nop_h.ac_link,
- sizeof(nop.nop_h.ac_link));
- /* Job done, clear the flag */
- lp->reconfig_82586 = 0;
- if (lp->tx_first_in_use == I82586NULL)
- lp->tx_first_in_use = txblock;
- if (lp->tx_n_in_use == (NTXBLOCKS - 1))
- netif_stop_queue(dev);
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_82586_config()n", dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * This routine, called by wavelan_close(), gracefully stops the
- * WaveLAN controller (i82586).
- * (called by wavelan_close())
- */
- static inline void wv_82586_stop(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- u16 scb_cmd;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_82586_stop()n", dev->name);
- #endif
- /* Suspend both command unit and receive unit. */
- scb_cmd =
- (SCB_CMD_CUC & SCB_CMD_CUC_SUS) | (SCB_CMD_RUC &
- SCB_CMD_RUC_SUS);
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &scb_cmd, sizeof(scb_cmd));
- set_chan_attn(ioaddr, lp->hacr);
- /* No more interrupts */
- wv_ints_off(dev);
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_82586_stop()n", dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * Totally reset the WaveLAN and restart it.
- * Performs the following actions:
- * 1. A power reset (reset DMA)
- * 2. Initialize the radio modem (using wv_mmc_init)
- * 3. Reset & Configure LAN controller (using wv_82586_start)
- * 4. Start the LAN controller's command unit
- * 5. Start the LAN controller's receive unit
- * (called by wavelan_interrupt(), wavelan_watchdog() & wavelan_open())
- */
- static int wv_hw_reset(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long ioaddr = dev->base_addr;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: ->wv_hw_reset(dev=0x%x)n", dev->name,
- (unsigned int) dev);
- #endif
- /* Increase the number of resets done. */
- lp->nresets++;
- wv_hacr_reset(ioaddr);
- lp->hacr = HACR_DEFAULT;
- if ((wv_mmc_init(dev) < 0) || (wv_82586_start(dev) < 0))
- return -1;
- /* Enable the card to send interrupts. */
- wv_ints_on(dev);
- /* Start card functions */
- if (wv_cu_start(dev) < 0)
- return -1;
- /* Setup the controller and parameters */
- wv_82586_config(dev);
- /* Finish configuration with the receive unit */
- if (wv_ru_start(dev) < 0)
- return -1;
- #ifdef DEBUG_CONFIG_TRACE
- printk(KERN_DEBUG "%s: <-wv_hw_reset()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Check if there is a WaveLAN at the specific base address.
- * As a side effect, this reads the MAC address.
- * (called in wavelan_probe() and init_module())
- */
- static int wv_check_ioaddr(unsigned long ioaddr, u8 * mac)
- {
- int i; /* Loop counter */
- /* Check if the base address if available. */
- if (check_region(ioaddr, sizeof(ha_t)))
- return -EADDRINUSE; /* ioaddr already used */
- /* Reset host interface */
- wv_hacr_reset(ioaddr);
- /* Read the MAC address from the parameter storage area. */
- psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_univ_mac_addr),
- mac, 6);
- /*
- * Check the first three octets of the address for the manufacturer's code.
- * Note: if this can't find your WaveLAN card, you've got a
- * non-NCR/AT&T/Lucent ISA card. See wavelan.p.h for detail on
- * how to configure your card.
- */
- for (i = 0; i < (sizeof(MAC_ADDRESSES) / sizeof(char) / 3); i++)
- if ((mac[0] == MAC_ADDRESSES[i][0]) &&
- (mac[1] == MAC_ADDRESSES[i][1]) &&
- (mac[2] == MAC_ADDRESSES[i][2]))
- return 0;
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_WARNING
- "WaveLAN (0x%3X): your MAC address might be %02X:%02X:%02X.n",
- ioaddr, mac[0], mac[1], mac[2]);
- #endif
- return -ENODEV;
- }
- /************************ INTERRUPT HANDLING ************************/
- /*
- * This function is the interrupt handler for the WaveLAN card. This
- * routine will be called whenever:
- */
- static void wavelan_interrupt(int irq, void *dev_id, struct pt_regs *regs)
- {
- device *dev;
- unsigned long ioaddr;
- net_local *lp;
- u16 hasr;
- u16 status;
- u16 ack_cmd;
- dev = dev_id;
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_interrupt()n", dev->name);
- #endif
- lp = (net_local *) dev->priv;
- ioaddr = dev->base_addr;
- #ifdef DEBUG_INTERRUPT_INFO
- /* Check state of our spinlock */
- if(spin_is_locked(&lp->spinlock))
- printk(KERN_DEBUG
- "%s: wavelan_interrupt(): spinlock is already locked !!!n",
- dev->name);
- #endif
- /* Prevent reentrancy. We need to do that because we may have
- * multiple interrupt handler running concurrently.
- * It is safe because wv_splhi() disables interrupts before acquiring
- * the spinlock. */
- spin_lock(&lp->spinlock);
- /* Check modem interrupt */
- if ((hasr = hasr_read(ioaddr)) & HASR_MMC_INTR) {
- u8 dce_status;
- /*
- * Interrupt from the modem management controller.
- * This will clear it -- ignored for now.
- */
- mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status,
- sizeof(dce_status));
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO
- "%s: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.n",
- dev->name, dce_status);
- #endif
- }
- /* Check if not controller interrupt */
- if ((hasr & HASR_82586_INTR) == 0) {
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO
- "%s: wavelan_interrupt(): interrupt not coming from i82586n",
- dev->name);
- #endif
- spin_unlock (&lp->spinlock);
- return;
- }
- /* Read interrupt data. */
- obram_read(ioaddr, scboff(OFFSET_SCB, scb_status),
- (unsigned char *) &status, sizeof(status));
- /*
- * Acknowledge the interrupt(s).
- */
- ack_cmd = status & SCB_ST_INT;
- obram_write(ioaddr, scboff(OFFSET_SCB, scb_command),
- (unsigned char *) &ack_cmd, sizeof(ack_cmd));
- set_chan_attn(ioaddr, lp->hacr);
- #ifdef DEBUG_INTERRUPT_INFO
- printk(KERN_DEBUG "%s: wavelan_interrupt(): status 0x%04x.n",
- dev->name, status);
- #endif
- /* Command completed. */
- if ((status & SCB_ST_CX) == SCB_ST_CX) {
- #ifdef DEBUG_INTERRUPT_INFO
- printk(KERN_DEBUG
- "%s: wavelan_interrupt(): command completed.n",
- dev->name);
- #endif
- wv_complete(dev, ioaddr, lp);
- }
- /* Frame received. */
- if ((status & SCB_ST_FR) == SCB_ST_FR) {
- #ifdef DEBUG_INTERRUPT_INFO
- printk(KERN_DEBUG
- "%s: wavelan_interrupt(): received packet.n",
- dev->name);
- #endif
- wv_receive(dev);
- }
- /* Check the state of the command unit. */
- if (((status & SCB_ST_CNA) == SCB_ST_CNA) ||
- (((status & SCB_ST_CUS) != SCB_ST_CUS_ACTV) &&
- (netif_running(dev)))) {
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO
- "%s: wavelan_interrupt(): CU inactive -- restartingn",
- dev->name);
- #endif
- wv_hw_reset(dev);
- }
- /* Check the state of the command unit. */
- if (((status & SCB_ST_RNR) == SCB_ST_RNR) ||
- (((status & SCB_ST_RUS) != SCB_ST_RUS_RDY) &&
- (netif_running(dev)))) {
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO
- "%s: wavelan_interrupt(): RU not ready -- restartingn",
- dev->name);
- #endif
- wv_hw_reset(dev);
- }
- /* Release spinlock */
- spin_unlock (&lp->spinlock);
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_interrupt()n", dev->name);
- #endif
- }
- /*------------------------------------------------------------------*/
- /*
- * Watchdog: when we start a transmission, a timer is set for us in the
- * kernel. If the transmission completes, this timer is disabled. If
- * the timer expires, we are called and we try to unlock the hardware.
- */
- static void wavelan_watchdog(device * dev)
- {
- net_local * lp = (net_local *)dev->priv;
- u_long ioaddr = dev->base_addr;
- unsigned long flags;
- unsigned int nreaped;
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_watchdog()n", dev->name);
- #endif
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO "%s: wavelan_watchdog: watchdog timer expiredn",
- dev->name);
- #endif
- /* Check that we came here for something */
- if (lp->tx_n_in_use <= 0) {
- return;
- }
- wv_splhi(lp, &flags);
- /* Try to see if some buffers are not free (in case we missed
- * an interrupt */
- nreaped = wv_complete(dev, ioaddr, lp);
- #ifdef DEBUG_INTERRUPT_INFO
- printk(KERN_DEBUG
- "%s: wavelan_watchdog(): %d reaped, %d remain.n",
- dev->name, nreaped, lp->tx_n_in_use);
- #endif
- #ifdef DEBUG_PSA_SHOW
- {
- psa_t psa;
- psa_read(dev, 0, (unsigned char *) &psa, sizeof(psa));
- wv_psa_show(&psa);
- }
- #endif
- #ifdef DEBUG_MMC_SHOW
- wv_mmc_show(dev);
- #endif
- #ifdef DEBUG_I82586_SHOW
- wv_cu_show(dev);
- #endif
- /* If no buffer has been freed */
- if (nreaped == 0) {
- #ifdef DEBUG_INTERRUPT_ERROR
- printk(KERN_INFO
- "%s: wavelan_watchdog(): cleanup failed, trying resetn",
- dev->name);
- #endif
- wv_hw_reset(dev);
- }
- /* At this point, we should have some free Tx buffer ;-) */
- if (lp->tx_n_in_use < NTXBLOCKS - 1)
- netif_wake_queue(dev);
- wv_splx(lp, &flags);
-
- #ifdef DEBUG_INTERRUPT_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_watchdog()n", dev->name);
- #endif
- }
- /********************* CONFIGURATION CALLBACKS *********************/
- /*
- * Here are the functions called by the Linux networking code (NET3)
- * for initialization, configuration and deinstallations of the
- * WaveLAN ISA hardware.
- */
- /*------------------------------------------------------------------*/
- /*
- * Configure and start up the WaveLAN PCMCIA adaptor.
- * Called by NET3 when it "opens" the device.
- */
- static int wavelan_open(device * dev)
- {
- net_local * lp = (net_local *)dev->priv;
- unsigned long flags;
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_open(dev=0x%x)n", dev->name,
- (unsigned int) dev);
- #endif
- /* Check irq */
- if (dev->irq == 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_WARNING "%s: wavelan_open(): no IRQn",
- dev->name);
- #endif
- return -ENXIO;
- }
- if (request_irq(dev->irq, &wavelan_interrupt, 0, "WaveLAN", dev) != 0)
- {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_WARNING "%s: wavelan_open(): invalid IRQn",
- dev->name);
- #endif
- return -EAGAIN;
- }
- wv_splhi(lp, &flags);
-
- if (wv_hw_reset(dev) != -1) {
- netif_start_queue(dev);
- } else {
- free_irq(dev->irq, dev);
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wavelan_open(): impossible to start the cardn",
- dev->name);
- #endif
- wv_splx(lp, &flags);
- return -EAGAIN;
- }
- wv_splx(lp, &flags);
-
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_open()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Shut down the WaveLAN ISA card.
- * Called by NET3 when it "closes" the device.
- */
- static int wavelan_close(device * dev)
- {
- net_local *lp = (net_local *) dev->priv;
- unsigned long flags;
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_close(dev=0x%x)n", dev->name,
- (unsigned int) dev);
- #endif
- netif_stop_queue(dev);
- /*
- * Flush the Tx and disable Rx.
- */
- wv_splhi(lp, &flags);
- wv_82586_stop(dev);
- wv_splx(lp, &flags);
- free_irq(dev->irq, dev);
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_close()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Probe an I/O address, and if the WaveLAN is there configure the
- * device structure
- * (called by wavelan_probe() and via init_module()).
- */
- static int __init wavelan_config(device * dev)
- {
- unsigned long ioaddr = dev->base_addr;
- u8 irq_mask;
- int irq;
- net_local *lp;
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: ->wavelan_config(dev=0x%x, ioaddr=0x%lx)n",
- dev->name, (unsigned int) dev, ioaddr);
- #endif
- /* Check IRQ argument on command line. */
- if (dev->irq != 0) {
- irq_mask = wv_irq_to_psa(dev->irq);
- if (irq_mask == 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_WARNING
- "%s: wavelan_config(): invalid IRQ %d ignored.n",
- dev->name, dev->irq);
- #endif
- dev->irq = 0;
- } else {
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_DEBUG
- "%s: wavelan_config(): changing IRQ to %dn",
- dev->name, dev->irq);
- #endif
- psa_write(ioaddr, HACR_DEFAULT,
- psaoff(0, psa_int_req_no), &irq_mask, 1);
- /* update the Wavelan checksum */
- update_psa_checksum(dev, ioaddr, HACR_DEFAULT);
- wv_hacr_reset(ioaddr);
- }
- }
- psa_read(ioaddr, HACR_DEFAULT, psaoff(0, psa_int_req_no),
- &irq_mask, 1);
- if ((irq = wv_psa_to_irq(irq_mask)) == -1) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_INFO
- "%s: wavelan_config(): could not wavelan_map_irq(%d).n",
- dev->name, irq_mask);
- #endif
- return -EAGAIN;
- }
- dev->irq = irq;
- if (!request_region(ioaddr, sizeof(ha_t), "wavelan"))
- return -EBUSY;
- dev->mem_start = 0x0000;
- dev->mem_end = 0x0000;
- dev->if_port = 0;
- /* Initialize device structures */
- dev->priv = kmalloc(sizeof(net_local), GFP_KERNEL);
- if (dev->priv == NULL) {
- release_region(ioaddr, sizeof(ha_t));
- return -ENOMEM;
- }
- memset(dev->priv, 0x00, sizeof(net_local));
- lp = (net_local *) dev->priv;
- /* Back link to the device structure. */
- lp->dev = dev;
- /* Add the device at the beginning of the linked list. */
- lp->next = wavelan_list;
- wavelan_list = lp;
- lp->hacr = HACR_DEFAULT;
- /* Multicast stuff */
- lp->promiscuous = 0;
- lp->mc_count = 0;
- /* Init spinlock */
- spin_lock_init(&lp->spinlock);
- /*
- * Fill in the fields of the device structure
- * with generic Ethernet values.
- */
- ether_setup(dev);
- SET_MODULE_OWNER(dev);
- dev->open = wavelan_open;
- dev->stop = wavelan_close;
- dev->hard_start_xmit = wavelan_packet_xmit;
- dev->get_stats = wavelan_get_stats;
- dev->set_multicast_list = &wavelan_set_multicast_list;
- dev->tx_timeout = &wavelan_watchdog;
- dev->watchdog_timeo = WATCHDOG_JIFFIES;
- #ifdef SET_MAC_ADDRESS
- dev->set_mac_address = &wavelan_set_mac_address;
- #endif /* SET_MAC_ADDRESS */
- #ifdef WIRELESS_EXT /* if wireless extension exists in the kernel */
- dev->do_ioctl = wavelan_ioctl;
- dev->get_wireless_stats = wavelan_get_wireless_stats;
- #endif
- dev->mtu = WAVELAN_MTU;
- /* Display nice information. */
- wv_init_info(dev);
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_config()n", dev->name);
- #endif
- return 0;
- }
- /*------------------------------------------------------------------*/
- /*
- * Check for a network adaptor of this type. Return '0' iff one
- * exists. There seem to be different interpretations of
- * the initial value of dev->base_addr.
- * We follow the example in drivers/net/ne.c.
- * (called in "Space.c")
- */
- int __init wavelan_probe(device * dev)
- {
- short base_addr;
- mac_addr mac; /* MAC address (check existence of WaveLAN) */
- int i;
- int r;
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG
- "%s: ->wavelan_probe(dev=0x%x (base_addr=0x%x))n",
- dev->name, (unsigned int) dev,
- (unsigned int) dev->base_addr);
- #endif
- #ifdef STRUCT_CHECK
- if (wv_struct_check() != (char *) NULL) {
- printk(KERN_WARNING
- "%s: wavelan_probe(): structure/compiler botch: "%s"n",
- dev->name, wv_struct_check());
- return -ENODEV;
- }
- #endif /* STRUCT_CHECK */
- /* Check the value of the command line parameter for base address. */
- base_addr = dev->base_addr;
- /* Don't probe at all. */
- if (base_addr < 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_WARNING
- "%s: wavelan_probe(): invalid base addressn",
- dev->name);
- #endif
- return -ENXIO;
- }
- /* Check a single specified location. */
- if (base_addr > 0x100) {
- /* Check if there is something at this base address */
- if ((r = wv_check_ioaddr(base_addr, mac)) == 0) {
- memcpy(dev->dev_addr, mac, 6); /* Copy MAC address. */
- r = wavelan_config(dev);
- }
- #ifdef DEBUG_CONFIG_INFO
- if (r != 0)
- printk(KERN_DEBUG
- "%s: wavelan_probe(): no device at specified base address (0x%X) or address already in usen",
- dev->name, base_addr);
- #endif
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG "%s: <-wavelan_probe()n", dev->name);
- #endif
- return r;
- }
- /* Scan all possible addresses of the WaveLAN hardware. */
- for (i = 0; i < NELS(iobase); i++) {
- /* Check whether there is something at this base address. */
- if (wv_check_ioaddr(iobase[i], mac) == 0) {
- dev->base_addr = iobase[i]; /* Copy base address. */
- memcpy(dev->dev_addr, mac, 6); /* Copy MAC address. */
- if (wavelan_config(dev) == 0) {
- #ifdef DEBUG_CALLBACK_TRACE
- printk(KERN_DEBUG
- "%s: <-wavelan_probe()n",
- dev->name);
- #endif
- return 0;
- }
- }
- }
- /* We may have touched base_addr. Another driver may not like it. */
- dev->base_addr = base_addr;
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_DEBUG "%s: wavelan_probe(): no device foundn",
- dev->name);
- #endif
- return -ENODEV;
- }
- /****************************** MODULE ******************************/
- /*
- * Module entry point: insertion and removal
- */
- #ifdef MODULE
- /*------------------------------------------------------------------*/
- /*
- * Insertion of the module
- * I'm now quite proud of the multi-device support.
- */
- int init_module(void)
- {
- mac_addr mac; /* MAC address (check WaveLAN existence) */
- int ret = -EIO; /* Return error if no cards found */
- int i;
- #ifdef DEBUG_MODULE_TRACE
- printk(KERN_DEBUG "-> init_module()n");
- #endif
- /* If probing is asked */
- if (io[0] == 0) {
- #ifdef DEBUG_CONFIG_ERROR
- printk(KERN_WARNING
- "WaveLAN init_module(): doing device probing (bad !)n");
- printk(KERN_WARNING
- "Specify base addresses while loading module to correct the problemn");
- #endif
- /* Copy the basic set of address to be probed. */
- for (i = 0; i < NELS(iobase); i++)
- io[i] = iobase[i];
- }
- /* Loop on all possible base addresses. */
- i = -1;
- while ((io[++i] != 0) && (i < NELS(io))) {
- /* Check if there is something at this base address. */
- if (wv_check_ioaddr(io[i], mac) == 0) {
- device *dev;
- /* Create device and set basic arguments. */
- dev =
- kmalloc(sizeof(struct net_device), GFP_KERNEL);
- if (dev == NULL) {
- ret = -ENOMEM;
- break;
- }
- memset(dev, 0x00, sizeof(struct net_device));
- memcpy(dev->name, name[i], IFNAMSIZ); /* Copy name */
- dev->base_addr = io[i];
- dev->irq = irq[i];
- dev->init = &wavelan_config;
- memcpy(dev->dev_addr, mac, 6); /* Copy MAC address. */
- /* Try to create the device. */
- if (register_netdev(dev) != 0) {
- /* Deallocate everything. */
- /* Note: if dev->priv is mallocated, there is no way to fail. */
- kfree(dev);
- } else {
- /* If at least one device OK, we do not fail */
- ret = 0;
- }
- } /* if there is something at the address */
- } /* Loop on all addresses. */
- #ifdef DEBUG_CONFIG_ERROR
- if (wavelan_list == (net_local *) NULL)
- printk(KERN_WARNING
- "WaveLAN init_module(): no device foundn");
- #endif
- #ifdef DEBUG_MODULE_TRACE
- printk(KERN_DEBUG "<- init_module()n");
- #endif
- return ret;
- }
- /*------------------------------------------------------------------*/
- /*
- * Removal of the module
- */
- void cleanup_module(void)
- {
- #ifdef DEBUG_MODULE_TRACE
- printk(KERN_DEBUG "-> cleanup_module()n");
- #endif
- /* Loop on all devices and release them. */
- while (wavelan_list != (net_local *) NULL) {
- device *dev = wavelan_list->dev;
- #ifdef DEBUG_CONFIG_INFO
- printk(KERN_DEBUG
- "%s: cleanup_module(): removing device at 0x%xn",
- dev->name, (unsigned int) dev);
- #endif
- /* Release the ioport region. */
- release_region(dev->base_addr, sizeof(ha_t));
- /* Definitely remove the device. */
- unregister_netdev(dev);
- /* Unlink the device. */
- wavelan_list = wavelan_list->next;
- /* Free pieces. */
- kfree(dev->priv);
- kfree(dev);
- }
- #ifdef DEBUG_MODULE_TRACE
- printk(KERN_DEBUG "<- cleanup_module()n");
- #endif
- }
- #endif /* MODULE */
- MODULE_LICENSE("GPL");
- /*
- * This software may only be used and distributed
- * according to the terms of the GNU General Public License.
- *
- * This software was developed as a component of the
- * Linux operating system.
- * It is based on other device drivers and information
- * either written or supplied by:
- * Ajay Bakre (bakre@paul.rutgers.edu),
- * Donald Becker (becker@scyld.com),
- * Loeke Brederveld (Loeke.Brederveld@Utrecht.NCR.com),
- * Anders Klemets (klemets@it.kth.se),
- * Vladimir V. Kolpakov (w@stier.koenig.ru),
- * Marc Meertens (Marc.Meertens@Utrecht.NCR.com),
- * Pauline Middelink (middelin@polyware.iaf.nl),
- * Robert Morris (rtm@das.harvard.edu),
- * Jean Tourrilhes (jt@hplb.hpl.hp.com),
- * Girish Welling (welling@paul.rutgers.edu),
- *
- * Thanks go also to:
- * James Ashton (jaa101@syseng.anu.edu.au),
- * Alan Cox (alan@redhat.com),
- * Allan Creighton (allanc@cs.usyd.edu.au),
- * Matthew Geier (matthew@cs.usyd.edu.au),
- * Remo di Giovanni (remo@cs.usyd.edu.au),
- * Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de),
- * Vipul Gupta (vgupta@cs.binghamton.edu),
- * Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
- * Tim Nicholson (tim@cs.usyd.edu.au),
- * Ian Parkin (ian@cs.usyd.edu.au),
- * John Rosenberg (johnr@cs.usyd.edu.au),
- * George Rossi (george@phm.gov.au),
- * Arthur Scott (arthur@cs.usyd.edu.au),
- * Peter Storey,
- * for their assistance and advice.
- *
- * Please send bug reports, updates, comments to:
- *
- * Bruce Janson Email: bruce@cs.usyd.edu.au
- * Basser Department of Computer Science Phone: +61-2-9351-3423
- * University of Sydney, N.S.W., 2006, AUSTRALIA Fax: +61-2-9351-3838
- */