diff options
Diffstat (limited to 'gpxe/src/drivers/net/sis900.c')
| -rw-r--r-- | gpxe/src/drivers/net/sis900.c | 1304 |
1 files changed, 0 insertions, 1304 deletions
diff --git a/gpxe/src/drivers/net/sis900.c b/gpxe/src/drivers/net/sis900.c deleted file mode 100644 index da14a091..00000000 --- a/gpxe/src/drivers/net/sis900.c +++ /dev/null @@ -1,1304 +0,0 @@ -/* -*- Mode:C; c-basic-offset:4; -*- */ - -/* - sis900.c: An SiS 900/7016 PCI Fast Ethernet driver for Etherboot - Copyright (C) 2001 Entity Cyber, Inc. - - Revision: 1.0 March 1, 2001 - - Author: Marty Connor (mdc@etherboot.org) - - Adapted from a Linux driver which was written by Donald Becker - and modified by Ollie Lho and Chin-Shan Li of SiS Corporation. - Rewritten for Etherboot by Marty Connor. - - This software may be used and distributed according to the terms - of the GNU Public License (GPL), incorporated herein by reference. - - References: - SiS 7016 Fast Ethernet PCI Bus 10/100 Mbps LAN Controller with OnNow Support, - preliminary Rev. 1.0 Jan. 14, 1998 - SiS 900 Fast Ethernet PCI Bus 10/100 Mbps LAN Single Chip with OnNow Support, - preliminary Rev. 1.0 Nov. 10, 1998 - SiS 7014 Single Chip 100BASE-TX/10BASE-T Physical Layer Solution, - preliminary Rev. 1.0 Jan. 18, 1998 - http://www.sis.com.tw/support/databook.htm */ - -FILE_LICENCE ( GPL_ANY ); - -/* Revision History */ - -/* - 07 Dec 2003 timlegge - Enabled Multicast Support - 06 Dec 2003 timlegge - Fixed relocation issue in 5.2 - 04 Jan 2002 Chien-Yu Chen, Doug Ambrisko, Marty Connor Patch to Etherboot 5.0.5 - Added support for the SiS 630ET plus various bug fixes from linux kernel - source 2.4.17. - 01 March 2001 mdc 1.0 - Initial Release. Tested with PCI based sis900 card and ThinkNIC - computer. - 20 March 2001 P.Koegel - added support for sis630e and PHY ICS1893 and RTL8201 - Testet with SIS730S chipset + ICS1893 -*/ - - -/* Includes */ - -#include "etherboot.h" -#include <gpxe/pci.h> -#include "nic.h" - -#include "sis900.h" - -/* Globals */ - -static struct nic_operations sis900_operations; - -static int sis900_debug = 0; - -static unsigned short vendor, dev_id; -static unsigned long ioaddr; -static u8 pci_revision; - -static unsigned int cur_phy; - -static unsigned int cur_rx; - -struct { - BufferDesc txd; - BufferDesc rxd[NUM_RX_DESC]; - unsigned char txb[TX_BUF_SIZE]; - unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE]; -} sis900_bufs __shared; -#define txd sis900_bufs.txd -#define rxd sis900_bufs.rxd -#define txb sis900_bufs.txb -#define rxb sis900_bufs.rxb - -#if 0 -static struct mac_chip_info { - const char *name; - u16 vendor_id, device_id, flags; - int io_size; -} mac_chip_table[] = { - { "SiS 900 PCI Fast Ethernet", PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS900, - PCI_COMMAND_IO|PCI_COMMAND_MASTER, SIS900_TOTAL_SIZE}, - { "SiS 7016 PCI Fast Ethernet",PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS7016, - PCI_COMMAND_IO|PCI_COMMAND_MASTER, SIS900_TOTAL_SIZE}, - {0,0,0,0,0} /* 0 terminated list. */ -}; -#endif - -static void sis900_read_mode(struct nic *nic, int phy_addr, int *speed, int *duplex); -static void amd79c901_read_mode(struct nic *nic, int phy_addr, int *speed, int *duplex); -static void ics1893_read_mode(struct nic *nic, int phy_addr, int *speed, int *duplex); -static void rtl8201_read_mode(struct nic *nic, int phy_addr, int *speed, int *duplex); -static void vt6103_read_mode(struct nic *nic, int phy_addr, int *speed, int *duplex); - -static struct mii_chip_info { - const char * name; - u16 phy_id0; - u16 phy_id1; - void (*read_mode) (struct nic *nic, int phy_addr, int *speed, int *duplex); -} mii_chip_table[] = { - {"SiS 900 Internal MII PHY", 0x001d, 0x8000, sis900_read_mode}, - {"SiS 7014 Physical Layer Solution", 0x0016, 0xf830,sis900_read_mode}, - {"SiS 900 on Foxconn 661 7MI", 0x0143, 0xBC70, sis900_read_mode}, - {"AMD 79C901 10BASE-T PHY", 0x0000, 0x6B70, amd79c901_read_mode}, - {"AMD 79C901 HomePNA PHY", 0x0000, 0x6B90, amd79c901_read_mode}, - {"ICS 1893 Integrated PHYceiver" , 0x0015, 0xf440,ics1893_read_mode}, -// {"NS 83851 PHY",0x2000, 0x5C20, MIX }, - {"RTL 8201 10/100Mbps Phyceiver" , 0x0000, 0x8200,rtl8201_read_mode}, - {"VIA 6103 10/100Mbps Phyceiver", 0x0101, 0x8f20,vt6103_read_mode}, - {0,0,0,0} -}; - -static struct mii_phy { - struct mii_phy * next; - struct mii_chip_info * chip_info; - int phy_addr; - u16 status; -} mii; - - - -#if 0 -// PCI to ISA bridge for SIS640E access -static struct pci_device_id pci_isa_bridge_list[] = { - { .vendor = 0x1039, .device = 0x0008, - .name = "SIS 85C503/5513 PCI to ISA bridge"}, -}; - -PCI_DRIVER( sis_bridge_pci_driver, pci_isa_bridge_list, PCI_NO_CLASS ); - -static struct device_driver sis_bridge_driver = { - .name = "SIS ISA bridge", - .bus_driver = &pci_driver, - .bus_driver_info = ( struct bus_driver_info * ) &sis_bridge_pci_driver, -}; -#endif - -/* Function Prototypes */ - -static int sis900_probe(struct nic *nic,struct pci_device *pci); - -static u16 sis900_read_eeprom(int location); -static void sis900_mdio_reset(long mdio_addr); -static void sis900_mdio_idle(long mdio_addr); -static u16 sis900_mdio_read(int phy_id, int location); -#if 0 -static void sis900_mdio_write(int phy_id, int location, int val); -#endif -static void sis900_init(struct nic *nic); - -static void sis900_reset(struct nic *nic); - -static void sis900_init_rxfilter(struct nic *nic); -static void sis900_init_txd(struct nic *nic); -static void sis900_init_rxd(struct nic *nic); -static void sis900_set_rx_mode(struct nic *nic); -static void sis900_check_mode(struct nic *nic); - -static void sis900_transmit(struct nic *nic, const char *d, - unsigned int t, unsigned int s, const char *p); -static int sis900_poll(struct nic *nic, int retrieve); - -static void sis900_disable(struct nic *nic); - -static void sis900_irq(struct nic *nic, irq_action_t action); - -/** - * sis900_get_mac_addr: - Get MAC address for stand alone SiS900 model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * Older SiS900 and friends, use EEPROM to store MAC address. - * MAC address is read from read_eeprom() into @net_dev->dev_addr. - */ - -static int sis900_get_mac_addr(struct pci_device * pci_dev __unused, struct nic *nic) -{ - u16 signature; - int i; - - /* check to see if we have sane EEPROM */ - signature = (u16) sis900_read_eeprom( EEPROMSignature); - if (signature == 0xffff || signature == 0x0000) { - printf ("sis900_probe: Error EERPOM read %hX\n", signature); - return 0; - } - - /* get MAC address from EEPROM */ - for (i = 0; i < 3; i++) - ((u16 *)(nic->node_addr))[i] = sis900_read_eeprom(i+EEPROMMACAddr); - return 1; -} - -/** - * sis96x_get_mac_addr: - Get MAC address for SiS962 or SiS963 model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS962 or SiS963 model, use EEPROM to store MAC address. And EEPROM - * is shared by - * LAN and 1394. When access EEPROM, send EEREQ signal to hardware first - * and wait for EEGNT. If EEGNT is ON, EEPROM is permitted to be access - * by LAN, otherwise is not. After MAC address is read from EEPROM, send - * EEDONE signal to refuse EEPROM access by LAN. - * The EEPROM map of SiS962 or SiS963 is different to SiS900. - * The signature field in SiS962 or SiS963 spec is meaningless. - * MAC address is read into @net_dev->dev_addr. - */ - -static int sis96x_get_mac_addr(struct pci_device * pci_dev __unused, struct nic *nic) -{ -/* long ioaddr = net_dev->base_addr; */ - long ee_addr = ioaddr + mear; - u32 waittime = 0; - int i; - - printf("Alternate function\n"); - - outl(EEREQ, ee_addr); - while(waittime < 2000) { - if(inl(ee_addr) & EEGNT) { - - /* get MAC address from EEPROM */ - for (i = 0; i < 3; i++) - ((u16 *)(nic->node_addr))[i] = sis900_read_eeprom(i+EEPROMMACAddr); - - outl(EEDONE, ee_addr); - return 1; - } else { - udelay(1); - waittime ++; - } - } - outl(EEDONE, ee_addr); - return 0; -} - -/** - * sis630e_get_mac_addr: - Get MAC address for SiS630E model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS630E model, use APC CMOS RAM to store MAC address. - * APC CMOS RAM is accessed through ISA bridge. - * MAC address is read into @net_dev->dev_addr. - */ - -static int sis630e_get_mac_addr(struct pci_device * pci_dev __unused, struct nic *nic) -{ -#if 0 - u8 reg; - int i; - struct bus_loc bus_loc; - union { - struct bus_dev bus_dev; - struct pci_device isa_bridge; - } u; - - /* find PCI to ISA bridge */ - memset(&bus_loc, 0, sizeof(bus_loc)); - if ( ! find_by_driver ( &bus_loc, &u.bus_dev, &sis_bridge_driver, 0 ) ) - return 0; - - pci_read_config_byte(&u.isa_bridge, 0x48, ®); - pci_write_config_byte(&u.isa_bridge, 0x48, reg | 0x40); - - for (i = 0; i < ETH_ALEN; i++) - { - outb(0x09 + i, 0x70); - ((u8 *)(nic->node_addr))[i] = inb(0x71); - } - pci_write_config_byte(&u.isa_bridge, 0x48, reg & ~0x40); - - return 1; -#endif - - /* Does not work with current bus/device model */ - memset ( nic->node_addr, 0, sizeof ( nic->node_addr ) ); - return 0; -} - -/** - * sis630e_get_mac_addr: - Get MAC address for SiS630E model - * @pci_dev: the sis900 pci device - * @net_dev: the net device to get address for - * - * SiS630E model, use APC CMOS RAM to store MAC address. - * APC CMOS RAM is accessed through ISA bridge. - * MAC address is read into @net_dev->dev_addr. - */ - -static int sis635_get_mac_addr(struct pci_device * pci_dev __unused, struct nic *nic) -{ - u32 rfcrSave; - u32 i; - - - rfcrSave = inl(rfcr + ioaddr); - - outl(rfcrSave | RELOAD, ioaddr + cr); - outl(0, ioaddr + cr); - - /* disable packet filtering before setting filter */ - outl(rfcrSave & ~RFEN, rfcr + ioaddr); - - /* load MAC addr to filter data register */ - for (i = 0 ; i < 3 ; i++) { - outl((i << RFADDR_shift), ioaddr + rfcr); - *( ((u16 *)nic->node_addr) + i) = inw(ioaddr + rfdr); - } - - /* enable packet filitering */ - outl(rfcrSave | RFEN, rfcr + ioaddr); - - return 1; -} - -/* - * Function: sis900_probe - * - * Description: initializes initializes the NIC, retrieves the - * MAC address of the card, and sets up some globals required by - * other routines. - * - * Side effects: - * leaves the ioaddress of the sis900 chip in the variable ioaddr. - * leaves the sis900 initialized, and ready to recieve packets. - * - * Returns: struct nic *: pointer to NIC data structure - */ - -static int sis900_probe ( struct nic *nic, struct pci_device *pci ) { - - int i; - int found=0; - int phy_addr; - u8 revision; - int ret; - - if (pci->ioaddr == 0) - return 0; - - nic->irqno = 0; - nic->ioaddr = pci->ioaddr; - - ioaddr = pci->ioaddr; - vendor = pci->vendor; - dev_id = pci->device; - - /* wakeup chip */ - pci_write_config_dword(pci, 0x40, 0x00000000); - - adjust_pci_device(pci); - - /* get MAC address */ - ret = 0; - pci_read_config_byte(pci, PCI_REVISION, &revision); - - /* save for use later in sis900_reset() */ - pci_revision = revision; - - if (revision == SIS630E_900_REV) - ret = sis630e_get_mac_addr(pci, nic); - else if ((revision > 0x81) && (revision <= 0x90)) - ret = sis635_get_mac_addr(pci, nic); - else if (revision == SIS96x_900_REV) - ret = sis96x_get_mac_addr(pci, nic); - else - ret = sis900_get_mac_addr(pci, nic); - - if (ret == 0) - { - printf ("sis900_probe: Error MAC address not found\n"); - return 0; - } - - /* 630ET : set the mii access mode as software-mode */ - if (revision == SIS630ET_900_REV) - outl(ACCESSMODE | inl(ioaddr + cr), ioaddr + cr); - - DBG( "sis900_probe: Vendor:%#hX Device:%#hX\n", vendor, dev_id ); - - /* probe for mii transceiver */ - /* search for total of 32 possible mii phy addresses */ - - found = 0; - for (phy_addr = 0; phy_addr < 32; phy_addr++) { - u16 mii_status; - u16 phy_id0, phy_id1; - - mii_status = sis900_mdio_read(phy_addr, MII_STATUS); - if (mii_status == 0xffff || mii_status == 0x0000) - /* the mii is not accessable, try next one */ - continue; - - phy_id0 = sis900_mdio_read(phy_addr, MII_PHY_ID0); - phy_id1 = sis900_mdio_read(phy_addr, MII_PHY_ID1); - - /* search our mii table for the current mii */ - for (i = 0; mii_chip_table[i].phy_id1; i++) { - - if ((phy_id0 == mii_chip_table[i].phy_id0) && - ((phy_id1 & 0xFFF0) == mii_chip_table[i].phy_id1)){ - - printf("sis900_probe: %s transceiver found at address %d.\n", - mii_chip_table[i].name, phy_addr); - - mii.chip_info = &mii_chip_table[i]; - mii.phy_addr = phy_addr; - mii.status = sis900_mdio_read(phy_addr, MII_STATUS); - mii.next = NULL; - - found=1; - break; - } - } - } - - if (found == 0) { - printf("sis900_probe: No MII transceivers found!\n"); - return 0; - } - - /* Arbitrarily select the last PHY found as current PHY */ - cur_phy = mii.phy_addr; - printf("sis900_probe: Using %s as default\n", mii.chip_info->name); - - /* initialize device */ - sis900_init(nic); - nic->nic_op = &sis900_operations; - - return 1; -} - - - - -/* - * EEPROM Routines: These functions read and write to EEPROM for - * retrieving the MAC address and other configuration information about - * the card. - */ - -/* Delay between EEPROM clock transitions. */ -#define eeprom_delay() inl(ee_addr) - - -/* Function: sis900_read_eeprom - * - * Description: reads and returns a given location from EEPROM - * - * Arguments: int location: requested EEPROM location - * - * Returns: u16: contents of requested EEPROM location - * - */ - -/* Read Serial EEPROM through EEPROM Access Register, Note that location is - in word (16 bits) unit */ -static u16 sis900_read_eeprom(int location) -{ - int i; - u16 retval = 0; - long ee_addr = ioaddr + mear; - u32 read_cmd = location | EEread; - - outl(0, ee_addr); - eeprom_delay(); - outl(EECS, ee_addr); - eeprom_delay(); - - /* Shift the read command (9) bits out. */ - for (i = 8; i >= 0; i--) { - u32 dataval = (read_cmd & (1 << i)) ? EEDI | EECS : EECS; - outl(dataval, ee_addr); - eeprom_delay(); - outl(dataval | EECLK, ee_addr); - eeprom_delay(); - } - outl(EECS, ee_addr); - eeprom_delay(); - - /* read the 16-bits data in */ - for (i = 16; i > 0; i--) { - outl(EECS, ee_addr); - eeprom_delay(); - outl(EECS | EECLK, ee_addr); - eeprom_delay(); - retval = (retval << 1) | ((inl(ee_addr) & EEDO) ? 1 : 0); - eeprom_delay(); - } - - /* Terminate the EEPROM access. */ - outl(0, ee_addr); - eeprom_delay(); -// outl(EECLK, ee_addr); - - return (retval); -} - -#define sis900_mdio_delay() inl(mdio_addr) - - -/* - Read and write the MII management registers using software-generated - serial MDIO protocol. Note that the command bits and data bits are - send out seperately -*/ - -static void sis900_mdio_idle(long mdio_addr) -{ - outl(MDIO | MDDIR, mdio_addr); - sis900_mdio_delay(); - outl(MDIO | MDDIR | MDC, mdio_addr); -} - -/* Syncronize the MII management interface by shifting 32 one bits out. */ -static void sis900_mdio_reset(long mdio_addr) -{ - int i; - - for (i = 31; i >= 0; i--) { - outl(MDDIR | MDIO, mdio_addr); - sis900_mdio_delay(); - outl(MDDIR | MDIO | MDC, mdio_addr); - sis900_mdio_delay(); - } - return; -} - -static u16 sis900_mdio_read(int phy_id, int location) -{ - long mdio_addr = ioaddr + mear; - int mii_cmd = MIIread|(phy_id<<MIIpmdShift)|(location<<MIIregShift); - u16 retval = 0; - int i; - - sis900_mdio_reset(mdio_addr); - sis900_mdio_idle(mdio_addr); - - for (i = 15; i >= 0; i--) { - int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; - outl(dataval, mdio_addr); - sis900_mdio_delay(); - outl(dataval | MDC, mdio_addr); - sis900_mdio_delay(); - } - - /* Read the 16 data bits. */ - for (i = 16; i > 0; i--) { - outl(0, mdio_addr); - sis900_mdio_delay(); - retval = (retval << 1) | ((inl(mdio_addr) & MDIO) ? 1 : 0); - outl(MDC, mdio_addr); - sis900_mdio_delay(); - } - outl(0x00, mdio_addr); - return retval; -} - -#if 0 -static void sis900_mdio_write(int phy_id, int location, int value) -{ - long mdio_addr = ioaddr + mear; - int mii_cmd = MIIwrite|(phy_id<<MIIpmdShift)|(location<<MIIregShift); - int i; - - sis900_mdio_reset(mdio_addr); - sis900_mdio_idle(mdio_addr); - - /* Shift the command bits out. */ - for (i = 15; i >= 0; i--) { - int dataval = (mii_cmd & (1 << i)) ? MDDIR | MDIO : MDDIR; - outb(dataval, mdio_addr); - sis900_mdio_delay(); - outb(dataval | MDC, mdio_addr); - sis900_mdio_delay(); - } - sis900_mdio_delay(); - - /* Shift the value bits out. */ - for (i = 15; i >= 0; i--) { - int dataval = (value & (1 << i)) ? MDDIR | MDIO : MDDIR; - outl(dataval, mdio_addr); - sis900_mdio_delay(); - outl(dataval | MDC, mdio_addr); - sis900_mdio_delay(); - } - sis900_mdio_delay(); - - /* Clear out extra bits. */ - for (i = 2; i > 0; i--) { - outb(0, mdio_addr); - sis900_mdio_delay(); - outb(MDC, mdio_addr); - sis900_mdio_delay(); - } - outl(0x00, mdio_addr); - return; -} -#endif - - -/* Function: sis900_init - * - * Description: resets the ethernet controller chip and various - * data structures required for sending and receiving packets. - * - * Arguments: struct nic *nic: NIC data structure - * - * returns: void. - */ - -static void -sis900_init(struct nic *nic) -{ - /* Soft reset the chip. */ - sis900_reset(nic); - - sis900_init_rxfilter(nic); - - sis900_init_txd(nic); - sis900_init_rxd(nic); - - sis900_set_rx_mode(nic); - - sis900_check_mode(nic); - - outl(RxENA| inl(ioaddr + cr), ioaddr + cr); -} - - -/* - * Function: sis900_reset - * - * Description: disables interrupts and soft resets the controller chip - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -sis900_reset(struct nic *nic __unused) -{ - int i = 0; - u32 status = TxRCMP | RxRCMP; - - outl(0, ioaddr + ier); - outl(0, ioaddr + imr); - outl(0, ioaddr + rfcr); - - outl(RxRESET | TxRESET | RESET | inl(ioaddr + cr), ioaddr + cr); - - /* Check that the chip has finished the reset. */ - while (status && (i++ < 1000)) { - status ^= (inl(isr + ioaddr) & status); - } - - if( (pci_revision >= SIS635A_900_REV) || (pci_revision == SIS900B_900_REV) ) - outl(PESEL | RND_CNT, ioaddr + cfg); - else - outl(PESEL, ioaddr + cfg); -} - - -/* Function: sis_init_rxfilter - * - * Description: sets receive filter address to our MAC address - * - * Arguments: struct nic *nic: NIC data structure - * - * returns: void. - */ - -static void -sis900_init_rxfilter(struct nic *nic) -{ - u32 rfcrSave; - int i; - - rfcrSave = inl(rfcr + ioaddr); - - /* disable packet filtering before setting filter */ - outl(rfcrSave & ~RFEN, rfcr + ioaddr); - - /* load MAC addr to filter data register */ - for (i = 0 ; i < 3 ; i++) { - u32 w; - - w = (u32) *((u16 *)(nic->node_addr)+i); - outl((i << RFADDR_shift), ioaddr + rfcr); - outl(w, ioaddr + rfdr); - - if (sis900_debug > 0) - printf("sis900_init_rxfilter: Receive Filter Addrss[%d]=%X\n", - i, inl(ioaddr + rfdr)); - } - - /* enable packet filitering */ - outl(rfcrSave | RFEN, rfcr + ioaddr); -} - - -/* - * Function: sis_init_txd - * - * Description: initializes the Tx descriptor - * - * Arguments: struct nic *nic: NIC data structure - * - * returns: void. - */ - -static void -sis900_init_txd(struct nic *nic __unused) -{ - txd.link = (u32) 0; - txd.cmdsts = (u32) 0; - txd.bufptr = virt_to_bus(&txb[0]); - - /* load Transmit Descriptor Register */ - outl(virt_to_bus(&txd), ioaddr + txdp); - if (sis900_debug > 0) - printf("sis900_init_txd: TX descriptor register loaded with: %X\n", - inl(ioaddr + txdp)); -} - - -/* Function: sis_init_rxd - * - * Description: initializes the Rx descriptor ring - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -sis900_init_rxd(struct nic *nic __unused) -{ - int i; - - cur_rx = 0; - - /* init RX descriptor */ - for (i = 0; i < NUM_RX_DESC; i++) { - rxd[i].link = virt_to_bus((i+1 < NUM_RX_DESC) ? &rxd[i+1] : &rxd[0]); - rxd[i].cmdsts = (u32) RX_BUF_SIZE; - rxd[i].bufptr = virt_to_bus(&rxb[i*RX_BUF_SIZE]); - if (sis900_debug > 0) - printf("sis900_init_rxd: rxd[%d]=%p link=%X cmdsts=%X bufptr=%X\n", - i, &rxd[i], (unsigned int) rxd[i].link, (unsigned int) rxd[i].cmdsts, - (unsigned int) rxd[i].bufptr); - } - - /* load Receive Descriptor Register */ - outl(virt_to_bus(&rxd[0]), ioaddr + rxdp); - - if (sis900_debug > 0) - printf("sis900_init_rxd: RX descriptor register loaded with: %X\n", - inl(ioaddr + rxdp)); - -} - - -/* Function: sis_init_rxd - * - * Description: - * sets the receive mode to accept all broadcast packets and packets - * with our MAC address, and reject all multicast packets. - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void sis900_set_rx_mode(struct nic *nic __unused) -{ - int i, table_entries; - u32 rx_mode; - u16 mc_filter[16] = {0}; /* 256/128 bits multicast hash table */ - - if((pci_revision == SIS635A_900_REV) || (pci_revision == SIS900B_900_REV)) - table_entries = 16; - else - table_entries = 8; - - /* accept all multicast packet */ - rx_mode = RFAAB | RFAAM; - for (i = 0; i < table_entries; i++) - mc_filter[i] = 0xffff; - - /* update Multicast Hash Table in Receive Filter */ - for (i = 0; i < table_entries; i++) { - /* why plus 0x04? That makes the correct value for hash table. */ - outl((u32)(0x00000004+i) << RFADDR_shift, ioaddr + rfcr); - outl(mc_filter[i], ioaddr + rfdr); - } - - /* Accept Broadcast and multicast packets, destination addresses that match - our MAC address */ - outl(RFEN | rx_mode, ioaddr + rfcr); - - return; -} - - -/* Function: sis900_check_mode - * - * Description: checks the state of transmit and receive - * parameters on the NIC, and updates NIC registers to match - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -sis900_check_mode(struct nic *nic) -{ - int speed, duplex; - u32 tx_flags = 0, rx_flags = 0; - - mii.chip_info->read_mode(nic, cur_phy, &speed, &duplex); - - if( inl(ioaddr + cfg) & EDB_MASTER_EN ) { - tx_flags = TxATP | (DMA_BURST_64 << TxMXDMA_shift) | (TX_FILL_THRESH << TxFILLT_shift); - rx_flags = DMA_BURST_64 << RxMXDMA_shift; - } - else { - tx_flags = TxATP | (DMA_BURST_512 << TxMXDMA_shift) | (TX_FILL_THRESH << TxFILLT_shift); - rx_flags = DMA_BURST_512 << RxMXDMA_shift; - } - - if (speed == HW_SPEED_HOME || speed == HW_SPEED_10_MBPS) { - rx_flags |= (RxDRNT_10 << RxDRNT_shift); - tx_flags |= (TxDRNT_10 << TxDRNT_shift); - } - else { - rx_flags |= (RxDRNT_100 << RxDRNT_shift); - tx_flags |= (TxDRNT_100 << TxDRNT_shift); - } - - if (duplex == FDX_CAPABLE_FULL_SELECTED) { - tx_flags |= (TxCSI | TxHBI); - rx_flags |= RxATX; - } - - outl (tx_flags, ioaddr + txcfg); - outl (rx_flags, ioaddr + rxcfg); -} - - -/* Function: sis900_read_mode - * - * Description: retrieves and displays speed and duplex - * parameters from the NIC - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -sis900_read_mode(struct nic *nic __unused, int phy_addr, int *speed, int *duplex) -{ - int i = 0; - u32 status; - u16 phy_id0, phy_id1; - - /* STSOUT register is Latched on Transition, read operation updates it */ - do { - status = sis900_mdio_read(phy_addr, MII_STSOUT); - } while (i++ < 2); - - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - - if (status & (MII_NWAY_TX | MII_NWAY_TX_FDX)) - *speed = HW_SPEED_100_MBPS; - if (status & ( MII_NWAY_TX_FDX | MII_NWAY_T_FDX)) - *duplex = FDX_CAPABLE_FULL_SELECTED; - - /* Workaround for Realtek RTL8201 PHY issue */ - phy_id0 = sis900_mdio_read(phy_addr, MII_PHY_ID0); - phy_id1 = sis900_mdio_read(phy_addr, MII_PHY_ID1); - if((phy_id0 == 0x0000) && ((phy_id1 & 0xFFF0) == 0x8200)){ - if(sis900_mdio_read(phy_addr, MII_CONTROL) & MII_CNTL_FDX) - *duplex = FDX_CAPABLE_FULL_SELECTED; - if(sis900_mdio_read(phy_addr, 0x0019) & 0x01) - *speed = HW_SPEED_100_MBPS; - } - - if (status & MII_STSOUT_LINK_FAIL) - printf("sis900_read_mode: Media Link Off\n"); - else - printf("sis900_read_mode: Media Link On %s %s-duplex \n", - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); -} - - -/* Function: amd79c901_read_mode - * - * Description: retrieves and displays speed and duplex - * parameters from the NIC - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -amd79c901_read_mode(struct nic *nic __unused, int phy_addr, int *speed, int *duplex) -{ - int i; - u16 status; - - for (i = 0; i < 2; i++) - status = sis900_mdio_read(phy_addr, MII_STATUS); - - if (status & MII_STAT_CAN_AUTO) { - /* 10BASE-T PHY */ - for (i = 0; i < 2; i++) - status = sis900_mdio_read(phy_addr, MII_STATUS_SUMMARY); - if (status & MII_STSSUM_SPD) - *speed = HW_SPEED_100_MBPS; - else - *speed = HW_SPEED_10_MBPS; - if (status & MII_STSSUM_DPLX) - *duplex = FDX_CAPABLE_FULL_SELECTED; - else - *duplex = FDX_CAPABLE_HALF_SELECTED; - - if (status & MII_STSSUM_LINK) - printf("amd79c901_read_mode: Media Link On %s %s-duplex \n", - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); - else - printf("amd79c901_read_mode: Media Link Off\n"); - } - else { - /* HomePNA */ - *speed = HW_SPEED_HOME; - *duplex = FDX_CAPABLE_HALF_SELECTED; - if (status & MII_STAT_LINK) - printf("amd79c901_read_mode:Media Link On 1mbps half-duplex \n"); - else - printf("amd79c901_read_mode: Media Link Off\n"); - } -} - - -/** - * ics1893_read_mode: - read media mode for ICS1893 PHY - * @net_dev: the net device to read mode for - * @phy_addr: mii phy address - * @speed: the transmit speed to be determined - * @duplex: the duplex mode to be determined - * - * ICS1893 PHY use Quick Poll Detailed Status register - * to determine the speed and duplex mode for sis900 - */ - -static void ics1893_read_mode(struct nic *nic __unused, int phy_addr, int *speed, int *duplex) -{ - int i = 0; - u32 status; - - /* MII_QPDSTS is Latched, read twice in succession will reflect the current state */ - for (i = 0; i < 2; i++) - status = sis900_mdio_read(phy_addr, MII_QPDSTS); - - if (status & MII_STSICS_SPD) - *speed = HW_SPEED_100_MBPS; - else - *speed = HW_SPEED_10_MBPS; - - if (status & MII_STSICS_DPLX) - *duplex = FDX_CAPABLE_FULL_SELECTED; - else - *duplex = FDX_CAPABLE_HALF_SELECTED; - - if (status & MII_STSICS_LINKSTS) - printf("ics1893_read_mode: Media Link On %s %s-duplex \n", - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); - else - printf("ics1893_read_mode: Media Link Off\n"); -} - -/** - * rtl8201_read_mode: - read media mode for rtl8201 phy - * @nic: the net device to read mode for - * @phy_addr: mii phy address - * @speed: the transmit speed to be determined - * @duplex: the duplex mode to be determined - * - * read MII_STATUS register from rtl8201 phy - * to determine the speed and duplex mode for sis900 - */ - -static void rtl8201_read_mode(struct nic *nic __unused, int phy_addr, int *speed, int *duplex) -{ - u32 status; - - status = sis900_mdio_read(phy_addr, MII_STATUS); - - if (status & MII_STAT_CAN_TX_FDX) { - *speed = HW_SPEED_100_MBPS; - *duplex = FDX_CAPABLE_FULL_SELECTED; - } - else if (status & MII_STAT_CAN_TX) { - *speed = HW_SPEED_100_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - } - else if (status & MII_STAT_CAN_T_FDX) { - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_FULL_SELECTED; - } - else if (status & MII_STAT_CAN_T) { - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - } - - if (status & MII_STAT_LINK) - printf("rtl8201_read_mode: Media Link On %s %s-duplex \n", - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); - else - printf("rtl8201_read_config_mode: Media Link Off\n"); -} - -/** - * vt6103_read_mode: - read media mode for vt6103 phy - * @nic: the net device to read mode for - * @phy_addr: mii phy address - * @speed: the transmit speed to be determined - * @duplex: the duplex mode to be determined - * - * read MII_STATUS register from rtl8201 phy - * to determine the speed and duplex mode for sis900 - */ - -static void vt6103_read_mode(struct nic *nic __unused, int phy_addr, int *speed, int *duplex) -{ - u32 status; - - status = sis900_mdio_read(phy_addr, MII_STATUS); - - if (status & MII_STAT_CAN_TX_FDX) { - *speed = HW_SPEED_100_MBPS; - *duplex = FDX_CAPABLE_FULL_SELECTED; - } - else if (status & MII_STAT_CAN_TX) { - *speed = HW_SPEED_100_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - } - else if (status & MII_STAT_CAN_T_FDX) { - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_FULL_SELECTED; - } - else if (status & MII_STAT_CAN_T) { - *speed = HW_SPEED_10_MBPS; - *duplex = FDX_CAPABLE_HALF_SELECTED; - } - - if (status & MII_STAT_LINK) - printf("vt6103_read_mode: Media Link On %s %s-duplex \n", - *speed == HW_SPEED_100_MBPS ? - "100mbps" : "10mbps", - *duplex == FDX_CAPABLE_FULL_SELECTED ? - "full" : "half"); - else - printf("vt6103_read_config_mode: Media Link Off\n"); -} - -/* Function: sis900_transmit - * - * Description: transmits a packet and waits for completion or timeout. - * - * Arguments: char d[6]: destination ethernet address. - * unsigned short t: ethernet protocol type. - * unsigned short s: size of the data-part of the packet. - * char *p: the data for the packet. - * - * Returns: void. - */ - -static void -sis900_transmit(struct nic *nic, - const char *d, /* Destination */ - unsigned int t, /* Type */ - unsigned int s, /* size */ - const char *p) /* Packet */ -{ - u32 to, nstype; - volatile u32 tx_status; - - /* Stop the transmitter */ - outl(TxDIS | inl(ioaddr + cr), ioaddr + cr); - - /* load Transmit Descriptor Register */ - outl(virt_to_bus(&txd), ioaddr + txdp); - if (sis900_debug > 1) - printf("sis900_transmit: TX descriptor register loaded with: %X\n", - inl(ioaddr + txdp)); - - memcpy(txb, d, ETH_ALEN); - memcpy(txb + ETH_ALEN, nic->node_addr, ETH_ALEN); - nstype = htons(t); - memcpy(txb + 2 * ETH_ALEN, (char*)&nstype, 2); - memcpy(txb + ETH_HLEN, p, s); - - s += ETH_HLEN; - s &= DSIZE; - - if (sis900_debug > 1) - printf("sis900_transmit: sending %d bytes ethtype %hX\n", (int) s, t); - - /* pad to minimum packet size */ - while (s < ETH_ZLEN) - txb[s++] = '\0'; - - /* set the transmit buffer descriptor and enable Transmit State Machine */ - txd.bufptr = virt_to_bus(&txb[0]); - txd.cmdsts = (u32) OWN | s; - - /* restart the transmitter */ - outl(TxENA | inl(ioaddr + cr), ioaddr + cr); - - if (sis900_debug > 1) - printf("sis900_transmit: Queued Tx packet size %d.\n", (int) s); - - to = currticks() + TX_TIMEOUT; - - while (((tx_status=txd.cmdsts) & OWN) && (currticks() < to)) - /* wait */ ; - - if (currticks() >= to) { - printf("sis900_transmit: TX Timeout! Tx status %X.\n", - (unsigned int) tx_status); - } - - if (tx_status & (ABORT | UNDERRUN | OWCOLL)) { - /* packet unsuccessfully transmited */ - printf("sis900_transmit: Transmit error, Tx status %X.\n", - (unsigned int) tx_status); - } - /* Disable interrupts by clearing the interrupt mask. */ - outl(0, ioaddr + imr); -} - - -/* Function: sis900_poll - * - * Description: checks for a received packet and returns it if found. - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: 1 if a packet was recieved. - * 0 if no pacet was recieved. - * - * Side effects: - * Returns (copies) the packet to the array nic->packet. - * Returns the length of the packet in nic->packetlen. - */ - -static int -sis900_poll(struct nic *nic, int retrieve) -{ - u32 rx_status = rxd[cur_rx].cmdsts; - u32 intr_status; - int retstat = 0; - - /* acknowledge interrupts by reading interrupt status register */ - intr_status = inl(ioaddr + isr); - - if (sis900_debug > 2) - printf("sis900_poll: cur_rx:%d, status:%X\n", cur_rx, - (unsigned int) rx_status); - - if (!(rx_status & OWN)) - return retstat; - - if (sis900_debug > 1) - printf("sis900_poll: got a packet: cur_rx:%d, status:%X\n", - cur_rx, (unsigned int) rx_status); - - if ( ! retrieve ) return 1; - - nic->packetlen = (rx_status & DSIZE) - CRC_SIZE; - - if (rx_status & (ABORT|OVERRUN|TOOLONG|RUNT|RXISERR|CRCERR|FAERR)) { - /* corrupted packet received */ - printf("sis900_poll: Corrupted packet received, buffer status = %X\n", - (unsigned int) rx_status); - retstat = 0; - } else { - /* give packet to higher level routine */ - memcpy(nic->packet, (rxb + cur_rx*RX_BUF_SIZE), nic->packetlen); - retstat = 1; - } - - /* return the descriptor and buffer to receive ring */ - rxd[cur_rx].cmdsts = RX_BUF_SIZE; - rxd[cur_rx].bufptr = virt_to_bus(&rxb[cur_rx*RX_BUF_SIZE]); - - if (++cur_rx == NUM_RX_DESC) - cur_rx = 0; - - /* re-enable the potentially idle receive state machine */ - outl(RxENA | inl(ioaddr + cr), ioaddr + cr); - - return retstat; - -} - - -/* Function: sis900_disable - * - * Description: Turns off interrupts and stops Tx and Rx engines - * - * Arguments: struct nic *nic: NIC data structure - * - * Returns: void. - */ - -static void -sis900_disable ( struct nic *nic ) { - - sis900_init(nic); - - /* Disable interrupts by clearing the interrupt mask. */ - outl(0, ioaddr + imr); - outl(0, ioaddr + ier); - - /* Stop the chip's Tx and Rx Status Machine */ - outl(RxDIS | TxDIS | inl(ioaddr + cr), ioaddr + cr); -} - - -/* Function: sis900_irq - * - * Description: Enable, Disable, or Force, interrupts - * - * Arguments: struct nic *nic: NIC data structure - * irq_action_t action: Requested action - * - * Returns: void. - */ - -static void -sis900_irq(struct nic *nic __unused, irq_action_t action __unused) -{ - switch ( action ) { - case DISABLE : - outl(0, ioaddr + imr); - break; - case ENABLE : - outl((RxSOVR|RxORN|RxERR|RxOK|TxURN|TxERR|TxIDLE), ioaddr + imr); - break; - case FORCE : - break; - } -} - -static struct nic_operations sis900_operations = { - .connect = dummy_connect, - .poll = sis900_poll, - .transmit = sis900_transmit, - .irq = sis900_irq, -}; - -static struct pci_device_id sis900_nics[] = { -PCI_ROM(0x1039, 0x0900, "sis900", "SIS900", 0), -PCI_ROM(0x1039, 0x7016, "sis7016", "SIS7016", 0), -}; - -PCI_DRIVER ( sis900_driver, sis900_nics, PCI_NO_CLASS ); - -DRIVER ( "SIS900", nic_driver, pci_driver, sis900_driver, - sis900_probe, sis900_disable ); - -/* - * Local variables: - * c-basic-offset: 8 - * c-indent-level: 8 - * tab-width: 8 - * End: - */ |