diff options
Diffstat (limited to 'drivers/net/tokenring/smctr.c')
| -rw-r--r-- | drivers/net/tokenring/smctr.c | 5742 |
1 files changed, 5742 insertions, 0 deletions
diff --git a/drivers/net/tokenring/smctr.c b/drivers/net/tokenring/smctr.c new file mode 100644 index 00000000000..5c8aeacb831 --- /dev/null +++ b/drivers/net/tokenring/smctr.c @@ -0,0 +1,5742 @@ +/* + * smctr.c: A network driver for the SMC Token Ring Adapters. + * + * Written by Jay Schulist <jschlst@samba.org> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + * This device driver works with the following SMC adapters: + * - SMC TokenCard Elite (8115T, chips 825/584) + * - SMC TokenCard Elite/A MCA (8115T/A, chips 825/594) + * + * Source(s): + * - SMC TokenCard SDK. + * + * Maintainer(s): + * JS Jay Schulist <jschlst@samba.org> + * + * Changes: + * 07102000 JS Fixed a timing problem in smctr_wait_cmd(); + * Also added a bit more discriptive error msgs. + * 07122000 JS Fixed problem with detecting a card with + * module io/irq/mem specified. + * + * To do: + * 1. Multicast support. + * + * Initial 2.5 cleanup Alan Cox <alan@redhat.com> 2002/10/28 + */ + +#include <linux/module.h> +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/fcntl.h> +#include <linux/interrupt.h> +#include <linux/ptrace.h> +#include <linux/ioport.h> +#include <linux/in.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/time.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/mca-legacy.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/trdevice.h> +#include <linux/bitops.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/dma.h> +#include <asm/irq.h> + +#if BITS_PER_LONG == 64 +#error FIXME: driver does not support 64-bit platforms +#endif + +#include "smctr.h" /* Our Stuff */ +#include "smctr_firmware.h" /* SMC adapter firmware */ + +static char version[] __initdata = KERN_INFO "smctr.c: v1.4 7/12/00 by jschlst@samba.org\n"; +static const char cardname[] = "smctr"; + + +#define SMCTR_IO_EXTENT 20 + +#ifdef CONFIG_MCA_LEGACY +static unsigned int smctr_posid = 0x6ec6; +#endif + +static int ringspeed; + +/* SMC Name of the Adapter. */ +static char smctr_name[] = "SMC TokenCard"; +char *smctr_model = "Unknown"; + +/* Use 0 for production, 1 for verification, 2 for debug, and + * 3 for very verbose debug. + */ +#ifndef SMCTR_DEBUG +#define SMCTR_DEBUG 1 +#endif +static unsigned int smctr_debug = SMCTR_DEBUG; + +/* smctr.c prototypes and functions are arranged alphabeticly + * for clearity, maintainability and pure old fashion fun. + */ +/* A */ +static int smctr_alloc_shared_memory(struct net_device *dev); + +/* B */ +static int smctr_bypass_state(struct net_device *dev); + +/* C */ +static int smctr_checksum_firmware(struct net_device *dev); +static int __init smctr_chk_isa(struct net_device *dev); +static int smctr_chg_rx_mask(struct net_device *dev); +static int smctr_clear_int(struct net_device *dev); +static int smctr_clear_trc_reset(int ioaddr); +static int smctr_close(struct net_device *dev); + +/* D */ +static int smctr_decode_firmware(struct net_device *dev); +static int smctr_disable_16bit(struct net_device *dev); +static int smctr_disable_adapter_ctrl_store(struct net_device *dev); +static int smctr_disable_bic_int(struct net_device *dev); + +/* E */ +static int smctr_enable_16bit(struct net_device *dev); +static int smctr_enable_adapter_ctrl_store(struct net_device *dev); +static int smctr_enable_adapter_ram(struct net_device *dev); +static int smctr_enable_bic_int(struct net_device *dev); + +/* G */ +static int __init smctr_get_boardid(struct net_device *dev, int mca); +static int smctr_get_group_address(struct net_device *dev); +static int smctr_get_functional_address(struct net_device *dev); +static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev); +static int smctr_get_physical_drop_number(struct net_device *dev); +static __u8 *smctr_get_rx_pointer(struct net_device *dev, short queue); +static int smctr_get_station_id(struct net_device *dev); +static struct net_device_stats *smctr_get_stats(struct net_device *dev); +static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue, + __u16 bytes_count); +static int smctr_get_upstream_neighbor_addr(struct net_device *dev); + +/* H */ +static int smctr_hardware_send_packet(struct net_device *dev, + struct net_local *tp); +/* I */ +static int smctr_init_acbs(struct net_device *dev); +static int smctr_init_adapter(struct net_device *dev); +static int smctr_init_card_real(struct net_device *dev); +static int smctr_init_rx_bdbs(struct net_device *dev); +static int smctr_init_rx_fcbs(struct net_device *dev); +static int smctr_init_shared_memory(struct net_device *dev); +static int smctr_init_tx_bdbs(struct net_device *dev); +static int smctr_init_tx_fcbs(struct net_device *dev); +static int smctr_internal_self_test(struct net_device *dev); +static irqreturn_t smctr_interrupt(int irq, void *dev_id, struct pt_regs *regs); +static int smctr_issue_enable_int_cmd(struct net_device *dev, + __u16 interrupt_enable_mask); +static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code, + __u16 ibits); +static int smctr_issue_init_timers_cmd(struct net_device *dev); +static int smctr_issue_init_txrx_cmd(struct net_device *dev); +static int smctr_issue_insert_cmd(struct net_device *dev); +static int smctr_issue_read_ring_status_cmd(struct net_device *dev); +static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt); +static int smctr_issue_remove_cmd(struct net_device *dev); +static int smctr_issue_resume_acb_cmd(struct net_device *dev); +static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue); +static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue); +static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue); +static int smctr_issue_test_internal_rom_cmd(struct net_device *dev); +static int smctr_issue_test_hic_cmd(struct net_device *dev); +static int smctr_issue_test_mac_reg_cmd(struct net_device *dev); +static int smctr_issue_trc_loopback_cmd(struct net_device *dev); +static int smctr_issue_tri_loopback_cmd(struct net_device *dev); +static int smctr_issue_write_byte_cmd(struct net_device *dev, + short aword_cnt, void *byte); +static int smctr_issue_write_word_cmd(struct net_device *dev, + short aword_cnt, void *word); + +/* J */ +static int smctr_join_complete_state(struct net_device *dev); + +/* L */ +static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev); +static int smctr_load_firmware(struct net_device *dev); +static int smctr_load_node_addr(struct net_device *dev); +static int smctr_lobe_media_test(struct net_device *dev); +static int smctr_lobe_media_test_cmd(struct net_device *dev); +static int smctr_lobe_media_test_state(struct net_device *dev); + +/* M */ +static int smctr_make_8025_hdr(struct net_device *dev, + MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc); +static int smctr_make_access_pri(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv); +static int smctr_make_auth_funct_class(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_corr(struct net_device *dev, + MAC_SUB_VECTOR *tsv, __u16 correlator); +static int smctr_make_funct_addr(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_group_addr(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_phy_drop_num(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv); +static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv); +static int smctr_make_ring_station_status(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_ring_station_version(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_tx_status_code(struct net_device *dev, + MAC_SUB_VECTOR *tsv, __u16 tx_fstatus); +static int smctr_make_upstream_neighbor_addr(struct net_device *dev, + MAC_SUB_VECTOR *tsv); +static int smctr_make_wrap_data(struct net_device *dev, + MAC_SUB_VECTOR *tsv); + +/* O */ +static int smctr_open(struct net_device *dev); +static int smctr_open_tr(struct net_device *dev); + +/* P */ +struct net_device *smctr_probe(int unit); +static int __init smctr_probe1(struct net_device *dev, int ioaddr); +static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size, + struct net_device *dev, __u16 rx_status); + +/* R */ +static int smctr_ram_memory_test(struct net_device *dev); +static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator); +static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator); +static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf); +static int smctr_rcv_rq_addr_state_attch(struct net_device *dev, + MAC_HEADER *rmf, __u16 *correlator); +static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator); +static int smctr_reset_adapter(struct net_device *dev); +static int smctr_restart_tx_chain(struct net_device *dev, short queue); +static int smctr_ring_status_chg(struct net_device *dev); +static int smctr_rx_frame(struct net_device *dev); + +/* S */ +static int smctr_send_dat(struct net_device *dev); +static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev); +static int smctr_send_lobe_media_test(struct net_device *dev); +static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator); +static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator); +static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator); +static int smctr_send_rpt_tx_forward(struct net_device *dev, + MAC_HEADER *rmf, __u16 tx_fstatus); +static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf, + __u16 rcode, __u16 correlator); +static int smctr_send_rq_init(struct net_device *dev); +static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf, + __u16 *tx_fstatus); +static int smctr_set_auth_access_pri(struct net_device *dev, + MAC_SUB_VECTOR *rsv); +static int smctr_set_auth_funct_class(struct net_device *dev, + MAC_SUB_VECTOR *rsv); +static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv, + __u16 *correlator); +static int smctr_set_error_timer_value(struct net_device *dev, + MAC_SUB_VECTOR *rsv); +static int smctr_set_frame_forward(struct net_device *dev, + MAC_SUB_VECTOR *rsv, __u8 dc_sc); +static int smctr_set_local_ring_num(struct net_device *dev, + MAC_SUB_VECTOR *rsv); +static unsigned short smctr_set_ctrl_attention(struct net_device *dev); +static void smctr_set_multicast_list(struct net_device *dev); +static int smctr_set_page(struct net_device *dev, __u8 *buf); +static int smctr_set_phy_drop(struct net_device *dev, + MAC_SUB_VECTOR *rsv); +static int smctr_set_ring_speed(struct net_device *dev); +static int smctr_set_rx_look_ahead(struct net_device *dev); +static int smctr_set_trc_reset(int ioaddr); +static int smctr_setup_single_cmd(struct net_device *dev, + __u16 command, __u16 subcommand); +static int smctr_setup_single_cmd_w_data(struct net_device *dev, + __u16 command, __u16 subcommand); +static char *smctr_malloc(struct net_device *dev, __u16 size); +static int smctr_status_chg(struct net_device *dev); + +/* T */ +static void smctr_timeout(struct net_device *dev); +static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb, + __u16 queue); +static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue); +static unsigned short smctr_tx_move_frame(struct net_device *dev, + struct sk_buff *skb, __u8 *pbuff, unsigned int bytes); + +/* U */ +static int smctr_update_err_stats(struct net_device *dev); +static int smctr_update_rx_chain(struct net_device *dev, __u16 queue); +static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb, + __u16 queue); + +/* W */ +static int smctr_wait_cmd(struct net_device *dev); +static int smctr_wait_while_cbusy(struct net_device *dev); + +#define TO_256_BYTE_BOUNDRY(X) (((X + 0xff) & 0xff00) - X) +#define TO_PARAGRAPH_BOUNDRY(X) (((X + 0x0f) & 0xfff0) - X) +#define PARAGRAPH_BOUNDRY(X) smctr_malloc(dev, TO_PARAGRAPH_BOUNDRY(X)) + +/* Allocate Adapter Shared Memory. + * IMPORTANT NOTE: Any changes to this function MUST be mirrored in the + * function "get_num_rx_bdbs" below!!! + * + * Order of memory allocation: + * + * 0. Initial System Configuration Block Pointer + * 1. System Configuration Block + * 2. System Control Block + * 3. Action Command Block + * 4. Interrupt Status Block + * + * 5. MAC TX FCB'S + * 6. NON-MAC TX FCB'S + * 7. MAC TX BDB'S + * 8. NON-MAC TX BDB'S + * 9. MAC RX FCB'S + * 10. NON-MAC RX FCB'S + * 11. MAC RX BDB'S + * 12. NON-MAC RX BDB'S + * 13. MAC TX Data Buffer( 1, 256 byte buffer) + * 14. MAC RX Data Buffer( 1, 256 byte buffer) + * + * 15. NON-MAC TX Data Buffer + * 16. NON-MAC RX Data Buffer + */ +static int smctr_alloc_shared_memory(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_alloc_shared_memory\n", dev->name); + + /* Allocate initial System Control Block pointer. + * This pointer is located in the last page, last offset - 4. + */ + tp->iscpb_ptr = (ISCPBlock *)(tp->ram_access + ((__u32)64 * 0x400) + - (long)ISCP_BLOCK_SIZE); + + /* Allocate System Control Blocks. */ + tp->scgb_ptr = (SCGBlock *)smctr_malloc(dev, sizeof(SCGBlock)); + PARAGRAPH_BOUNDRY(tp->sh_mem_used); + + tp->sclb_ptr = (SCLBlock *)smctr_malloc(dev, sizeof(SCLBlock)); + PARAGRAPH_BOUNDRY(tp->sh_mem_used); + + tp->acb_head = (ACBlock *)smctr_malloc(dev, + sizeof(ACBlock)*tp->num_acbs); + PARAGRAPH_BOUNDRY(tp->sh_mem_used); + + tp->isb_ptr = (ISBlock *)smctr_malloc(dev, sizeof(ISBlock)); + PARAGRAPH_BOUNDRY(tp->sh_mem_used); + + tp->misc_command_data = (__u16 *)smctr_malloc(dev, MISC_DATA_SIZE); + PARAGRAPH_BOUNDRY(tp->sh_mem_used); + + /* Allocate transmit FCBs. */ + tp->tx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev, + sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE]); + + tp->tx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev, + sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE]); + + tp->tx_fcb_head[BUG_QUEUE] = (FCBlock *)smctr_malloc(dev, + sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE]); + + /* Allocate transmit BDBs. */ + tp->tx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, + sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE]); + + tp->tx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, + sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE]); + + tp->tx_bdb_head[BUG_QUEUE] = (BDBlock *)smctr_malloc(dev, + sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE]); + + /* Allocate receive FCBs. */ + tp->rx_fcb_head[MAC_QUEUE] = (FCBlock *)smctr_malloc(dev, + sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE]); + + tp->rx_fcb_head[NON_MAC_QUEUE] = (FCBlock *)smctr_malloc(dev, + sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE]); + + /* Allocate receive BDBs. */ + tp->rx_bdb_head[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, + sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE]); + + tp->rx_bdb_end[MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0); + + tp->rx_bdb_head[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, + sizeof(BDBlock) * tp->num_rx_bdbs[NON_MAC_QUEUE]); + + tp->rx_bdb_end[NON_MAC_QUEUE] = (BDBlock *)smctr_malloc(dev, 0); + + /* Allocate MAC transmit buffers. + * MAC Tx Buffers doen't have to be on an ODD Boundry. + */ + tp->tx_buff_head[MAC_QUEUE] + = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[MAC_QUEUE]); + tp->tx_buff_curr[MAC_QUEUE] = tp->tx_buff_head[MAC_QUEUE]; + tp->tx_buff_end [MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0); + + /* Allocate BUG transmit buffers. */ + tp->tx_buff_head[BUG_QUEUE] + = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[BUG_QUEUE]); + tp->tx_buff_curr[BUG_QUEUE] = tp->tx_buff_head[BUG_QUEUE]; + tp->tx_buff_end[BUG_QUEUE] = (__u16 *)smctr_malloc(dev, 0); + + /* Allocate MAC receive data buffers. + * MAC Rx buffer doesn't have to be on a 256 byte boundary. + */ + tp->rx_buff_head[MAC_QUEUE] = (__u16 *)smctr_malloc(dev, + RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE]); + tp->rx_buff_end[MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0); + + /* Allocate Non-MAC transmit buffers. + * ?? For maximum Netware performance, put Tx Buffers on + * ODD Boundry and then restore malloc to Even Boundrys. + */ + smctr_malloc(dev, 1L); + tp->tx_buff_head[NON_MAC_QUEUE] + = (__u16 *)smctr_malloc(dev, tp->tx_buff_size[NON_MAC_QUEUE]); + tp->tx_buff_curr[NON_MAC_QUEUE] = tp->tx_buff_head[NON_MAC_QUEUE]; + tp->tx_buff_end [NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0); + smctr_malloc(dev, 1L); + + /* Allocate Non-MAC receive data buffers. + * To guarantee a minimum of 256 contigous memory to + * UM_Receive_Packet's lookahead pointer, before a page + * change or ring end is encountered, place each rx buffer on + * a 256 byte boundary. + */ + smctr_malloc(dev, TO_256_BYTE_BOUNDRY(tp->sh_mem_used)); + tp->rx_buff_head[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, + RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[NON_MAC_QUEUE]); + tp->rx_buff_end[NON_MAC_QUEUE] = (__u16 *)smctr_malloc(dev, 0); + + return (0); +} + +/* Enter Bypass state. */ +static int smctr_bypass_state(struct net_device *dev) +{ + int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_bypass_state\n", dev->name); + + err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, JS_BYPASS_STATE); + + return (err); +} + +static int smctr_checksum_firmware(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u16 i, checksum = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_checksum_firmware\n", dev->name); + + smctr_enable_adapter_ctrl_store(dev); + + for(i = 0; i < CS_RAM_SIZE; i += 2) + checksum += *((__u16 *)(tp->ram_access + i)); + + tp->microcode_version = *(__u16 *)(tp->ram_access + + CS_RAM_VERSION_OFFSET); + tp->microcode_version >>= 8; + + smctr_disable_adapter_ctrl_store(dev); + + if(checksum) + return (checksum); + + return (0); +} + +static int __init smctr_chk_mca(struct net_device *dev) +{ +#ifdef CONFIG_MCA_LEGACY + struct net_local *tp = netdev_priv(dev); + int current_slot; + __u8 r1, r2, r3, r4, r5; + + current_slot = mca_find_unused_adapter(smctr_posid, 0); + if(current_slot == MCA_NOTFOUND) + return (-ENODEV); + + mca_set_adapter_name(current_slot, smctr_name); + mca_mark_as_used(current_slot); + tp->slot_num = current_slot; + + r1 = mca_read_stored_pos(tp->slot_num, 2); + r2 = mca_read_stored_pos(tp->slot_num, 3); + + if(tp->slot_num) + outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num - 1) | CNFG_SLOT_ENABLE_BIT)); + else + outb(CNFG_POS_CONTROL_REG, (__u8)((tp->slot_num) | CNFG_SLOT_ENABLE_BIT)); + + r1 = inb(CNFG_POS_REG1); + r2 = inb(CNFG_POS_REG0); + + tp->bic_type = BIC_594_CHIP; + + /* IO */ + r2 = mca_read_stored_pos(tp->slot_num, 2); + r2 &= 0xF0; + dev->base_addr = ((__u16)r2 << 8) + (__u16)0x800; + request_region(dev->base_addr, SMCTR_IO_EXTENT, smctr_name); + + /* IRQ */ + r5 = mca_read_stored_pos(tp->slot_num, 5); + r5 &= 0xC; + switch(r5) + { + case 0: + dev->irq = 3; + break; + + case 0x4: + dev->irq = 4; + break; + + case 0x8: + dev->irq = 10; + break; + + default: + dev->irq = 15; + break; + } + if (request_irq(dev->irq, smctr_interrupt, SA_SHIRQ, smctr_name, dev)) { + release_region(dev->base_addr, SMCTR_IO_EXTENT); + return -ENODEV; + } + + /* Get RAM base */ + r3 = mca_read_stored_pos(tp->slot_num, 3); + tp->ram_base = ((__u32)(r3 & 0x7) << 13) + 0x0C0000; + if (r3 & 0x8) + tp->ram_base += 0x010000; + if (r3 & 0x80) + tp->ram_base += 0xF00000; + + /* Get Ram Size */ + r3 &= 0x30; + r3 >>= 4; + + tp->ram_usable = (__u16)CNFG_SIZE_8KB << r3; + tp->ram_size = (__u16)CNFG_SIZE_64KB; + tp->board_id |= TOKEN_MEDIA; + + r4 = mca_read_stored_pos(tp->slot_num, 4); + tp->rom_base = ((__u32)(r4 & 0x7) << 13) + 0x0C0000; + if (r4 & 0x8) + tp->rom_base += 0x010000; + + /* Get ROM size. */ + r4 >>= 4; + switch (r4) { + case 0: + tp->rom_size = CNFG_SIZE_8KB; + break; + case 1: + tp->rom_size = CNFG_SIZE_16KB; + break; + case 2: + tp->rom_size = CNFG_SIZE_32KB; + break; + default: + tp->rom_size = ROM_DISABLE; + } + + /* Get Media Type. */ + r5 = mca_read_stored_pos(tp->slot_num, 5); + r5 &= CNFG_MEDIA_TYPE_MASK; + switch(r5) + { + case (0): + tp->media_type = MEDIA_STP_4; + break; + + case (1): + tp->media_type = MEDIA_STP_16; + break; + + case (3): + tp->media_type = MEDIA_UTP_16; + break; + + default: + tp->media_type = MEDIA_UTP_4; + break; + } + tp->media_menu = 14; + + r2 = mca_read_stored_pos(tp->slot_num, 2); + if(!(r2 & 0x02)) + tp->mode_bits |= EARLY_TOKEN_REL; + + /* Disable slot */ + outb(CNFG_POS_CONTROL_REG, 0); + + tp->board_id = smctr_get_boardid(dev, 1); + switch(tp->board_id & 0xffff) + { + case WD8115TA: + smctr_model = "8115T/A"; + break; + + case WD8115T: + if(tp->extra_info & CHIP_REV_MASK) + smctr_model = "8115T rev XE"; + else + smctr_model = "8115T rev XD"; + break; + + default: + smctr_model = "Unknown"; + break; + } + + return (0); +#else + return (-1); +#endif /* CONFIG_MCA_LEGACY */ +} + +static int smctr_chg_rx_mask(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_chg_rx_mask\n", dev->name); + + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if(tp->mode_bits & LOOPING_MODE_MASK) + tp->config_word0 |= RX_OWN_BIT; + else + tp->config_word0 &= ~RX_OWN_BIT; + + if(tp->receive_mask & PROMISCUOUS_MODE) + tp->config_word0 |= PROMISCUOUS_BIT; + else + tp->config_word0 &= ~PROMISCUOUS_BIT; + + if(tp->receive_mask & ACCEPT_ERR_PACKETS) + tp->config_word0 |= SAVBAD_BIT; + else + tp->config_word0 &= ~SAVBAD_BIT; + + if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES) + tp->config_word0 |= RXATMAC; + else + tp->config_word0 &= ~RXATMAC; + + if(tp->receive_mask & ACCEPT_MULTI_PROM) + tp->config_word1 |= MULTICAST_ADDRESS_BIT; + else + tp->config_word1 &= ~MULTICAST_ADDRESS_BIT; + + if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING) + tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS; + else + { + if(tp->receive_mask & ACCEPT_SOURCE_ROUTING) + tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT; + else + tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS; + } + + if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_0, + &tp->config_word0))) + { + return (err); + } + + if((err = smctr_issue_write_word_cmd(dev, RW_CONFIG_REGISTER_1, + &tp->config_word1))) + { + return (err); + } + + smctr_disable_16bit(dev); + + return (0); +} + +static int smctr_clear_int(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + outb((tp->trc_mask | CSR_CLRTINT), dev->base_addr + CSR); + + return (0); +} + +static int smctr_clear_trc_reset(int ioaddr) +{ + __u8 r; + + r = inb(ioaddr + MSR); + outb(~MSR_RST & r, ioaddr + MSR); + + return (0); +} + +/* + * The inverse routine to smctr_open(). + */ +static int smctr_close(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + struct sk_buff *skb; + int err; + + netif_stop_queue(dev); + + tp->cleanup = 1; + + /* Check to see if adapter is already in a closed state. */ + if(tp->status != OPEN) + return (0); + + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if((err = smctr_issue_remove_cmd(dev))) + { + smctr_disable_16bit(dev); + return (err); + } + + for(;;) + { + skb = skb_dequeue(&tp->SendSkbQueue); + if(skb == NULL) + break; + tp->QueueSkb++; + dev_kfree_skb(skb); + } + + + return (0); +} + +static int smctr_decode_firmware(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + short bit = 0x80, shift = 12; + DECODE_TREE_NODE *tree; + short branch, tsize; + __u16 buff = 0; + long weight; + __u8 *ucode; + __u16 *mem; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_decode_firmware\n", dev->name); + + weight = *(long *)(tp->ptr_ucode + WEIGHT_OFFSET); + tsize = *(__u8 *)(tp->ptr_ucode + TREE_SIZE_OFFSET); + tree = (DECODE_TREE_NODE *)(tp->ptr_ucode + TREE_OFFSET); + ucode = (__u8 *)(tp->ptr_ucode + TREE_OFFSET + + (tsize * sizeof(DECODE_TREE_NODE))); + mem = (__u16 *)(tp->ram_access); + + while(weight) + { + branch = ROOT; + while((tree + branch)->tag != LEAF && weight) + { + branch = *ucode & bit ? (tree + branch)->llink + : (tree + branch)->rlink; + + bit >>= 1; + weight--; + + if(bit == 0) + { + bit = 0x80; + ucode++; + } + } + + buff |= (tree + branch)->info << shift; + shift -= 4; + + if(shift < 0) + { + *(mem++) = SWAP_BYTES(buff); + buff = 0; + shift = 12; + } + } + + /* The following assumes the Control Store Memory has + * been initialized to zero. If the last partial word + * is zero, it will not be written. + */ + if(buff) + *(mem++) = SWAP_BYTES(buff); + + return (0); +} + +static int smctr_disable_16bit(struct net_device *dev) +{ + return (0); +} + +/* + * On Exit, Adapter is: + * 1. TRC is in a reset state and un-initialized. + * 2. Adapter memory is enabled. + * 3. Control Store memory is out of context (-WCSS is 1). + */ +static int smctr_disable_adapter_ctrl_store(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_disable_adapter_ctrl_store\n", dev->name); + + tp->trc_mask |= CSR_WCSS; + outb(tp->trc_mask, ioaddr + CSR); + + return (0); +} + +static int smctr_disable_bic_int(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + tp->trc_mask = CSR_MSK_ALL | CSR_MSKCBUSY + | CSR_MSKTINT | CSR_WCSS; + outb(tp->trc_mask, ioaddr + CSR); + + return (0); +} + +static int smctr_enable_16bit(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u8 r; + + if(tp->adapter_bus == BUS_ISA16_TYPE) + { + r = inb(dev->base_addr + LAAR); + outb((r | LAAR_MEM16ENB), dev->base_addr + LAAR); + } + + return (0); +} + +/* + * To enable the adapter control store memory: + * 1. Adapter must be in a RESET state. + * 2. Adapter memory must be enabled. + * 3. Control Store Memory is in context (-WCSS is 0). + */ +static int smctr_enable_adapter_ctrl_store(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_enable_adapter_ctrl_store\n", dev->name); + + smctr_set_trc_reset(ioaddr); + smctr_enable_adapter_ram(dev); + + tp->trc_mask &= ~CSR_WCSS; + outb(tp->trc_mask, ioaddr + CSR); + + return (0); +} + +static int smctr_enable_adapter_ram(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + __u8 r; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_enable_adapter_ram\n", dev->name); + + r = inb(ioaddr + MSR); + outb(MSR_MEMB | r, ioaddr + MSR); + + return (0); +} + +static int smctr_enable_bic_int(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + __u8 r; + + switch(tp->bic_type) + { + case (BIC_584_CHIP): + tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS; + outb(tp->trc_mask, ioaddr + CSR); + r = inb(ioaddr + IRR); + outb(r | IRR_IEN, ioaddr + IRR); + break; + + case (BIC_594_CHIP): + tp->trc_mask = CSR_MSKCBUSY | CSR_WCSS; + outb(tp->trc_mask, ioaddr + CSR); + r = inb(ioaddr + IMCCR); + outb(r | IMCCR_EIL, ioaddr + IMCCR); + break; + } + + return (0); +} + +static int __init smctr_chk_isa(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + __u8 r1, r2, b, chksum = 0; + __u16 r; + int i; + int err = -ENODEV; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_chk_isa %#4x\n", dev->name, ioaddr); + + if((ioaddr & 0x1F) != 0) + goto out; + + /* Grab the region so that no one else tries to probe our ioports. */ + if (!request_region(ioaddr, SMCTR_IO_EXTENT, smctr_name)) { + err = -EBUSY; + goto out; + } + + /* Checksum SMC node address */ + for(i = 0; i < 8; i++) + { + b = inb(ioaddr + LAR0 + i); + chksum += b; + } + + if (chksum != NODE_ADDR_CKSUM) + goto out2; + + b = inb(ioaddr + BDID); + if(b != BRD_ID_8115T) + { + printk(KERN_ERR "%s: The adapter found is not supported\n", dev->name); + goto out2; + } + + /* Check for 8115T Board ID */ + r2 = 0; + for(r = 0; r < 8; r++) + { + r1 = inb(ioaddr + 0x8 + r); + r2 += r1; + } + + /* value of RegF adds up the sum to 0xFF */ + if((r2 != 0xFF) && (r2 != 0xEE)) + goto out2; + + /* Get adapter ID */ + tp->board_id = smctr_get_boardid(dev, 0); + switch(tp->board_id & 0xffff) + { + case WD8115TA: + smctr_model = "8115T/A"; + break; + + case WD8115T: + if(tp->extra_info & CHIP_REV_MASK) + smctr_model = "8115T rev XE"; + else + smctr_model = "8115T rev XD"; + break; + + default: + smctr_model = "Unknown"; + break; + } + + /* Store BIC type. */ + tp->bic_type = BIC_584_CHIP; + tp->nic_type = NIC_825_CHIP; + + /* Copy Ram Size */ + tp->ram_usable = CNFG_SIZE_16KB; + tp->ram_size = CNFG_SIZE_64KB; + + /* Get 58x Ram Base */ + r1 = inb(ioaddr); + r1 &= 0x3F; + + r2 = inb(ioaddr + CNFG_LAAR_584); + r2 &= CNFG_LAAR_MASK; + r2 <<= 3; + r2 |= ((r1 & 0x38) >> 3); + + tp->ram_base = ((__u32)r2 << 16) + (((__u32)(r1 & 0x7)) << 13); + + /* Get 584 Irq */ + r1 = 0; + r1 = inb(ioaddr + CNFG_ICR_583); + r1 &= CNFG_ICR_IR2_584; + + r2 = inb(ioaddr + CNFG_IRR_583); + r2 &= CNFG_IRR_IRQS; /* 0x60 */ + r2 >>= 5; + + switch(r2) + { + case 0: + if(r1 == 0) + dev->irq = 2; + else + dev->irq = 10; + break; + + case 1: + if(r1 == 0) + dev->irq = 3; + else + dev->irq = 11; + break; + + case 2: + if(r1 == 0) + { + if(tp->extra_info & ALTERNATE_IRQ_BIT) + dev->irq = 5; + else + dev->irq = 4; + } + else + dev->irq = 15; + break; + + case 3: + if(r1 == 0) + dev->irq = 7; + else + dev->irq = 4; + break; + + default: + printk(KERN_ERR "%s: No IRQ found aborting\n", dev->name); + goto out2; + } + + if (request_irq(dev->irq, smctr_interrupt, SA_SHIRQ, smctr_name, dev)) + goto out2; + + /* Get 58x Rom Base */ + r1 = inb(ioaddr + CNFG_BIO_583); + r1 &= 0x3E; + r1 |= 0x40; + + tp->rom_base = (__u32)r1 << 13; + + /* Get 58x Rom Size */ + r1 = inb(ioaddr + CNFG_BIO_583); + r1 &= 0xC0; + if(r1 == 0) + tp->rom_size = ROM_DISABLE; + else + { + r1 >>= 6; + tp->rom_size = (__u16)CNFG_SIZE_8KB << r1; + } + + /* Get 58x Boot Status */ + r1 = inb(ioaddr + CNFG_GP2); + + tp->mode_bits &= (~BOOT_STATUS_MASK); + + if(r1 & CNFG_GP2_BOOT_NIBBLE) + tp->mode_bits |= BOOT_TYPE_1; + + /* Get 58x Zero Wait State */ + tp->mode_bits &= (~ZERO_WAIT_STATE_MASK); + + r1 = inb(ioaddr + CNFG_IRR_583); + + if(r1 & CNFG_IRR_ZWS) + tp->mode_bits |= ZERO_WAIT_STATE_8_BIT; + + if(tp->board_id & BOARD_16BIT) + { + r1 = inb(ioaddr + CNFG_LAAR_584); + + if(r1 & CNFG_LAAR_ZWS) + tp->mode_bits |= ZERO_WAIT_STATE_16_BIT; + } + + /* Get 584 Media Menu */ + tp->media_menu = 14; + r1 = inb(ioaddr + CNFG_IRR_583); + + tp->mode_bits &= 0xf8ff; /* (~CNFG_INTERFACE_TYPE_MASK) */ + if((tp->board_id & TOKEN_MEDIA) == TOKEN_MEDIA) + { + /* Get Advanced Features */ + if(((r1 & 0x6) >> 1) == 0x3) + tp->media_type |= MEDIA_UTP_16; + else + { + if(((r1 & 0x6) >> 1) == 0x2) + tp->media_type |= MEDIA_STP_16; + else + { + if(((r1 & 0x6) >> 1) == 0x1) + tp->media_type |= MEDIA_UTP_4; + + else + tp->media_type |= MEDIA_STP_4; + } + } + + r1 = inb(ioaddr + CNFG_GP2); + if(!(r1 & 0x2) ) /* GP2_ETRD */ + tp->mode_bits |= EARLY_TOKEN_REL; + + /* see if the chip is corrupted + if(smctr_read_584_chksum(ioaddr)) + { + printk(KERN_ERR "%s: EEPROM Checksum Failure\n", dev->name); + free_irq(dev->irq, dev); + goto out2; + } + */ + } + + return (0); + +out2: + release_region(ioaddr, SMCTR_IO_EXTENT); +out: + return err; +} + +static int __init smctr_get_boardid(struct net_device *dev, int mca) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + __u8 r, r1, IdByte; + __u16 BoardIdMask; + + tp->board_id = BoardIdMask = 0; + + if(mca) + { + BoardIdMask |= (MICROCHANNEL+INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT); + tp->extra_info |= (INTERFACE_594_CHIP+RAM_SIZE_64K+NIC_825_BIT+ALTERNATE_IRQ_BIT+SLOT_16BIT); + } + else + { + BoardIdMask|=(INTERFACE_CHIP+TOKEN_MEDIA+PAGED_RAM+BOARD_16BIT); + tp->extra_info |= (INTERFACE_584_CHIP + RAM_SIZE_64K + + NIC_825_BIT + ALTERNATE_IRQ_BIT); + } + + if(!mca) + { + r = inb(ioaddr + BID_REG_1); + r &= 0x0c; + outb(r, ioaddr + BID_REG_1); + r = inb(ioaddr + BID_REG_1); + + if(r & BID_SIXTEEN_BIT_BIT) + { + tp->extra_info |= SLOT_16BIT; + tp->adapter_bus = BUS_ISA16_TYPE; + } + else + tp->adapter_bus = BUS_ISA8_TYPE; + } + else + tp->adapter_bus = BUS_MCA_TYPE; + + /* Get Board Id Byte */ + IdByte = inb(ioaddr + BID_BOARD_ID_BYTE); + + /* if Major version > 1.0 then + * return; + */ + if(IdByte & 0xF8) + return (-1); + + r1 = inb(ioaddr + BID_REG_1); + r1 &= BID_ICR_MASK; + r1 |= BID_OTHER_BIT; + + outb(r1, ioaddr + BID_REG_1); + r1 = inb(ioaddr + BID_REG_3); + + r1 &= BID_EAR_MASK; + r1 |= BID_ENGR_PAGE; + + outb(r1, ioaddr + BID_REG_3); + r1 = inb(ioaddr + BID_REG_1); + r1 &= BID_ICR_MASK; + r1 |= (BID_RLA | BID_OTHER_BIT); + + outb(r1, ioaddr + BID_REG_1); + + r1 = inb(ioaddr + BID_REG_1); + while(r1 & BID_RECALL_DONE_MASK) + r1 = inb(ioaddr + BID_REG_1); + + r = inb(ioaddr + BID_LAR_0 + BID_REG_6); + + /* clear chip rev bits */ + tp->extra_info &= ~CHIP_REV_MASK; + tp->extra_info |= ((r & BID_EEPROM_CHIP_REV_MASK) << 6); + + r1 = inb(ioaddr + BID_REG_1); + r1 &= BID_ICR_MASK; + r1 |= BID_OTHER_BIT; + + outb(r1, ioaddr + BID_REG_1); + r1 = inb(ioaddr + BID_REG_3); + + r1 &= BID_EAR_MASK; + r1 |= BID_EA6; + + outb(r1, ioaddr + BID_REG_3); + r1 = inb(ioaddr + BID_REG_1); + + r1 &= BID_ICR_MASK; + r1 |= BID_RLA; + + outb(r1, ioaddr + BID_REG_1); + r1 = inb(ioaddr + BID_REG_1); + + while(r1 & BID_RECALL_DONE_MASK) + r1 = inb(ioaddr + BID_REG_1); + + return (BoardIdMask); +} + +static int smctr_get_group_address(struct net_device *dev) +{ + smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_GROUP_ADDR); + + return(smctr_wait_cmd(dev)); +} + +static int smctr_get_functional_address(struct net_device *dev) +{ + smctr_issue_read_word_cmd(dev, RW_FUNCTIONAL_ADDR); + + return(smctr_wait_cmd(dev)); +} + +/* Calculate number of Non-MAC receive BDB's and data buffers. + * This function must simulate allocateing shared memory exactly + * as the allocate_shared_memory function above. + */ +static unsigned int smctr_get_num_rx_bdbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int mem_used = 0; + + /* Allocate System Control Blocks. */ + mem_used += sizeof(SCGBlock); + + mem_used += TO_PARAGRAPH_BOUNDRY(mem_used); + mem_used += sizeof(SCLBlock); + + mem_used += TO_PARAGRAPH_BOUNDRY(mem_used); + mem_used += sizeof(ACBlock) * tp->num_acbs; + + mem_used += TO_PARAGRAPH_BOUNDRY(mem_used); + mem_used += sizeof(ISBlock); + + mem_used += TO_PARAGRAPH_BOUNDRY(mem_used); + mem_used += MISC_DATA_SIZE; + + /* Allocate transmit FCB's. */ + mem_used += TO_PARAGRAPH_BOUNDRY(mem_used); + + mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[MAC_QUEUE]; + mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[NON_MAC_QUEUE]; + mem_used += sizeof(FCBlock) * tp->num_tx_fcbs[BUG_QUEUE]; + + /* Allocate transmit BDBs. */ + mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[MAC_QUEUE]; + mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[NON_MAC_QUEUE]; + mem_used += sizeof(BDBlock) * tp->num_tx_bdbs[BUG_QUEUE]; + + /* Allocate receive FCBs. */ + mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[MAC_QUEUE]; + mem_used += sizeof(FCBlock) * tp->num_rx_fcbs[NON_MAC_QUEUE]; + + /* Allocate receive BDBs. */ + mem_used += sizeof(BDBlock) * tp->num_rx_bdbs[MAC_QUEUE]; + + /* Allocate MAC transmit buffers. + * MAC transmit buffers don't have to be on an ODD Boundry. + */ + mem_used += tp->tx_buff_size[MAC_QUEUE]; + + /* Allocate BUG transmit buffers. */ + mem_used += tp->tx_buff_size[BUG_QUEUE]; + + /* Allocate MAC receive data buffers. + * MAC receive buffers don't have to be on a 256 byte boundary. + */ + mem_used += RX_DATA_BUFFER_SIZE * tp->num_rx_bdbs[MAC_QUEUE]; + + /* Allocate Non-MAC transmit buffers. + * For maximum Netware performance, put Tx Buffers on + * ODD Boundry,and then restore malloc to Even Boundrys. + */ + mem_used += 1L; + mem_used += tp->tx_buff_size[NON_MAC_QUEUE]; + mem_used += 1L; + + /* CALCULATE NUMBER OF NON-MAC RX BDB'S + * AND NON-MAC RX DATA BUFFERS + * + * Make sure the mem_used offset at this point is the + * same as in allocate_shared memory or the following + * boundary adjustment will be incorrect (i.e. not allocating + * the non-mac receive buffers above cannot change the 256 + * byte offset). + * + * Since this cannot be guaranteed, adding the full 256 bytes + * to the amount of shared memory used at this point will guaranteed + * that the rx data buffers do not overflow shared memory. + */ + mem_used += 0x100; + + return((0xffff - mem_used) / (RX_DATA_BUFFER_SIZE + sizeof(BDBlock))); +} + +static int smctr_get_physical_drop_number(struct net_device *dev) +{ + smctr_issue_read_word_cmd(dev, RW_PHYSICAL_DROP_NUMBER); + + return(smctr_wait_cmd(dev)); +} + +static __u8 * smctr_get_rx_pointer(struct net_device *dev, short queue) +{ + struct net_local *tp = netdev_priv(dev); + BDBlock *bdb; + + bdb = (BDBlock *)((__u32)tp->ram_access + + (__u32)(tp->rx_fcb_curr[queue]->trc_bdb_ptr)); + + tp->rx_fcb_curr[queue]->bdb_ptr = bdb; + + return ((__u8 *)bdb->data_block_ptr); +} + +static int smctr_get_station_id(struct net_device *dev) +{ + smctr_issue_read_word_cmd(dev, RW_INDIVIDUAL_MAC_ADDRESS); + + return(smctr_wait_cmd(dev)); +} + +/* + * Get the current statistics. This may be called with the card open + * or closed. + */ +static struct net_device_stats *smctr_get_stats(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + return ((struct net_device_stats *)&tp->MacStat); +} + +static FCBlock *smctr_get_tx_fcb(struct net_device *dev, __u16 queue, + __u16 bytes_count) +{ + struct net_local *tp = netdev_priv(dev); + FCBlock *pFCB; + BDBlock *pbdb; + unsigned short alloc_size; + unsigned short *temp; + + if(smctr_debug > 20) + printk(KERN_DEBUG "smctr_get_tx_fcb\n"); + + /* check if there is enough FCB blocks */ + if(tp->num_tx_fcbs_used[queue] >= tp->num_tx_fcbs[queue]) + return ((FCBlock *)(-1L)); + + /* round off the input pkt size to the nearest even number */ + alloc_size = (bytes_count + 1) & 0xfffe; + + /* check if enough mem */ + if((tp->tx_buff_used[queue] + alloc_size) > tp->tx_buff_size[queue]) + return ((FCBlock *)(-1L)); + + /* check if past the end ; + * if exactly enough mem to end of ring, alloc from front. + * this avoids update of curr when curr = end + */ + if(((unsigned long)(tp->tx_buff_curr[queue]) + alloc_size) + >= (unsigned long)(tp->tx_buff_end[queue])) + { + /* check if enough memory from ring head */ + alloc_size = alloc_size + + (__u16)((__u32)tp->tx_buff_end[queue] + - (__u32)tp->tx_buff_curr[queue]); + + if((tp->tx_buff_used[queue] + alloc_size) + > tp->tx_buff_size[queue]) + { + return ((FCBlock *)(-1L)); + } + + /* ring wrap */ + tp->tx_buff_curr[queue] = tp->tx_buff_head[queue]; + } + + tp->tx_buff_used[queue] += alloc_size; + tp->num_tx_fcbs_used[queue]++; + tp->tx_fcb_curr[queue]->frame_length = bytes_count; + tp->tx_fcb_curr[queue]->memory_alloc = alloc_size; + temp = tp->tx_buff_curr[queue]; + tp->tx_buff_curr[queue] + = (__u16 *)((__u32)temp + (__u32)((bytes_count + 1) & 0xfffe)); + + pbdb = tp->tx_fcb_curr[queue]->bdb_ptr; + pbdb->buffer_length = bytes_count; + pbdb->data_block_ptr = temp; + pbdb->trc_data_block_ptr = TRC_POINTER(temp); + + pFCB = tp->tx_fcb_curr[queue]; + tp->tx_fcb_curr[queue] = tp->tx_fcb_curr[queue]->next_ptr; + + return (pFCB); +} + +static int smctr_get_upstream_neighbor_addr(struct net_device *dev) +{ + smctr_issue_read_word_cmd(dev, RW_UPSTREAM_NEIGHBOR_ADDRESS); + + return(smctr_wait_cmd(dev)); +} + +static int smctr_hardware_send_packet(struct net_device *dev, + struct net_local *tp) +{ + struct tr_statistics *tstat = &tp->MacStat; + struct sk_buff *skb; + FCBlock *fcb; + + if(smctr_debug > 10) + printk(KERN_DEBUG"%s: smctr_hardware_send_packet\n", dev->name); + + if(tp->status != OPEN) + return (-1); + + if(tp->monitor_state_ready != 1) + return (-1); + + for(;;) + { + /* Send first buffer from queue */ + skb = skb_dequeue(&tp->SendSkbQueue); + if(skb == NULL) + return (-1); + + tp->QueueSkb++; + + if(skb->len < SMC_HEADER_SIZE || skb->len > tp->max_packet_size) return (-1); + + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if((fcb = smctr_get_tx_fcb(dev, NON_MAC_QUEUE, skb->len)) + == (FCBlock *)(-1L)) + { + smctr_disable_16bit(dev); + return (-1); + } + + smctr_tx_move_frame(dev, skb, + (__u8 *)fcb->bdb_ptr->data_block_ptr, skb->len); + + smctr_set_page(dev, (__u8 *)fcb); + + smctr_trc_send_packet(dev, fcb, NON_MAC_QUEUE); + dev_kfree_skb(skb); + + tstat->tx_packets++; + + smctr_disable_16bit(dev); + } + + return (0); +} + +static int smctr_init_acbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i; + ACBlock *acb; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_init_acbs\n", dev->name); + + acb = tp->acb_head; + acb->cmd_done_status = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL); + acb->cmd_info = ACB_CHAIN_END; + acb->cmd = 0; + acb->subcmd = 0; + acb->data_offset_lo = 0; + acb->data_offset_hi = 0; + acb->next_ptr + = (ACBlock *)(((char *)acb) + sizeof(ACBlock)); + acb->trc_next_ptr = TRC_POINTER(acb->next_ptr); + + for(i = 1; i < tp->num_acbs; i++) + { + acb = acb->next_ptr; + acb->cmd_done_status + = (ACB_COMMAND_DONE | ACB_COMMAND_SUCCESSFUL); + acb->cmd_info = ACB_CHAIN_END; + acb->cmd = 0; + acb->subcmd = 0; + acb->data_offset_lo = 0; + acb->data_offset_hi = 0; + acb->next_ptr + = (ACBlock *)(((char *)acb) + sizeof(ACBlock)); + acb->trc_next_ptr = TRC_POINTER(acb->next_ptr); + } + + acb->next_ptr = tp->acb_head; + acb->trc_next_ptr = TRC_POINTER(tp->acb_head); + tp->acb_next = tp->acb_head->next_ptr; + tp->acb_curr = tp->acb_head->next_ptr; + tp->num_acbs_used = 0; + + return (0); +} + +static int smctr_init_adapter(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_init_adapter\n", dev->name); + + tp->status = CLOSED; + tp->page_offset_mask = (tp->ram_usable * 1024) - 1; + skb_queue_head_init(&tp->SendSkbQueue); + tp->QueueSkb = MAX_TX_QUEUE; + + if(!(tp->group_address_0 & 0x0080)) + tp->group_address_0 |= 0x00C0; + + if(!(tp->functional_address_0 & 0x00C0)) + tp->functional_address_0 |= 0x00C0; + + tp->functional_address[0] &= 0xFF7F; + + if(tp->authorized_function_classes == 0) + tp->authorized_function_classes = 0x7FFF; + + if(tp->authorized_access_priority == 0) + tp->authorized_access_priority = 0x06; + + smctr_disable_bic_int(dev); + smctr_set_trc_reset(dev->base_addr); + + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if(smctr_checksum_firmware(dev)) + { + printk(KERN_ERR "%s: Previously loaded firmware is missing\n",dev->name); return (-ENOENT); + } + + if((err = smctr_ram_memory_test(dev))) + { + printk(KERN_ERR "%s: RAM memory test failed.\n", dev->name); + return (-EIO); + } + + smctr_set_rx_look_ahead(dev); + smctr_load_node_addr(dev); + + /* Initialize adapter for Internal Self Test. */ + smctr_reset_adapter(dev); + if((err = smctr_init_card_real(dev))) + { + printk(KERN_ERR "%s: Initialization of card failed (%d)\n", + dev->name, err); + return (-EINVAL); + } + + /* This routine clobbers the TRC's internal registers. */ + if((err = smctr_internal_self_test(dev))) + { + printk(KERN_ERR "%s: Card failed internal self test (%d)\n", + dev->name, err); + return (-EINVAL); + } + + /* Re-Initialize adapter's internal registers */ + smctr_reset_adapter(dev); + if((err = smctr_init_card_real(dev))) + { + printk(KERN_ERR "%s: Initialization of card failed (%d)\n", + dev->name, err); + return (-EINVAL); + } + + smctr_enable_bic_int(dev); + + if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK))) + return (err); + + smctr_disable_16bit(dev); + + return (0); +} + +static int smctr_init_card_real(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_init_card_real\n", dev->name); + + tp->sh_mem_used = 0; + tp->num_acbs = NUM_OF_ACBS; + + /* Range Check Max Packet Size */ + if(tp->max_packet_size < 256) + tp->max_packet_size = 256; + else + { + if(tp->max_packet_size > NON_MAC_TX_BUFFER_MEMORY) + tp->max_packet_size = NON_MAC_TX_BUFFER_MEMORY; + } + + tp->num_of_tx_buffs = (NON_MAC_TX_BUFFER_MEMORY + / tp->max_packet_size) - 1; + + if(tp->num_of_tx_buffs > NUM_NON_MAC_TX_FCBS) + tp->num_of_tx_buffs = NUM_NON_MAC_TX_FCBS; + else + { + if(tp->num_of_tx_buffs == 0) + tp->num_of_tx_buffs = 1; + } + + /* Tx queue constants */ + tp->num_tx_fcbs [BUG_QUEUE] = NUM_BUG_TX_FCBS; + tp->num_tx_bdbs [BUG_QUEUE] = NUM_BUG_TX_BDBS; + tp->tx_buff_size [BUG_QUEUE] = BUG_TX_BUFFER_MEMORY; + tp->tx_buff_used [BUG_QUEUE] = 0; + tp->tx_queue_status [BUG_QUEUE] = NOT_TRANSMITING; + + tp->num_tx_fcbs [MAC_QUEUE] = NUM_MAC_TX_FCBS; + tp->num_tx_bdbs [MAC_QUEUE] = NUM_MAC_TX_BDBS; + tp->tx_buff_size [MAC_QUEUE] = MAC_TX_BUFFER_MEMORY; + tp->tx_buff_used [MAC_QUEUE] = 0; + tp->tx_queue_status [MAC_QUEUE] = NOT_TRANSMITING; + + tp->num_tx_fcbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_FCBS; + tp->num_tx_bdbs [NON_MAC_QUEUE] = NUM_NON_MAC_TX_BDBS; + tp->tx_buff_size [NON_MAC_QUEUE] = NON_MAC_TX_BUFFER_MEMORY; + tp->tx_buff_used [NON_MAC_QUEUE] = 0; + tp->tx_queue_status [NON_MAC_QUEUE] = NOT_TRANSMITING; + + /* Receive Queue Constants */ + tp->num_rx_fcbs[MAC_QUEUE] = NUM_MAC_RX_FCBS; + tp->num_rx_bdbs[MAC_QUEUE] = NUM_MAC_RX_BDBS; + + if(tp->extra_info & CHIP_REV_MASK) + tp->num_rx_fcbs[NON_MAC_QUEUE] = 78; /* 825 Rev. XE */ + else + tp->num_rx_fcbs[NON_MAC_QUEUE] = 7; /* 825 Rev. XD */ + + tp->num_rx_bdbs[NON_MAC_QUEUE] = smctr_get_num_rx_bdbs(dev); + + smctr_alloc_shared_memory(dev); + smctr_init_shared_memory(dev); + + if((err = smctr_issue_init_timers_cmd(dev))) + return (err); + + if((err = smctr_issue_init_txrx_cmd(dev))) + { + printk(KERN_ERR "%s: Hardware failure\n", dev->name); + return (err); + } + + return (0); +} + +static int smctr_init_rx_bdbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, j; + BDBlock *bdb; + __u16 *buf; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_init_rx_bdbs\n", dev->name); + + for(i = 0; i < NUM_RX_QS_USED; i++) + { + bdb = tp->rx_bdb_head[i]; + buf = tp->rx_buff_head[i]; + bdb->info = (BDB_CHAIN_END | BDB_NO_WARNING); + bdb->buffer_length = RX_DATA_BUFFER_SIZE; + bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock)); + bdb->data_block_ptr = buf; + bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr); + + if(i == NON_MAC_QUEUE) + bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf); + else + bdb->trc_data_block_ptr = TRC_POINTER(buf); + + for(j = 1; j < tp->num_rx_bdbs[i]; j++) + { + bdb->next_ptr->back_ptr = bdb; + bdb = bdb->next_ptr; + buf = (__u16 *)((char *)buf + RX_DATA_BUFFER_SIZE); + bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING); + bdb->buffer_length = RX_DATA_BUFFER_SIZE; + bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock)); + bdb->data_block_ptr = buf; + bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr); + + if(i == NON_MAC_QUEUE) + bdb->trc_data_block_ptr = RX_BUFF_TRC_POINTER(buf); + else + bdb->trc_data_block_ptr = TRC_POINTER(buf); + } + + bdb->next_ptr = tp->rx_bdb_head[i]; + bdb->trc_next_ptr = TRC_POINTER(tp->rx_bdb_head[i]); + + tp->rx_bdb_head[i]->back_ptr = bdb; + tp->rx_bdb_curr[i] = tp->rx_bdb_head[i]->next_ptr; + } + + return (0); +} + +static int smctr_init_rx_fcbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, j; + FCBlock *fcb; + + for(i = 0; i < NUM_RX_QS_USED; i++) + { + fcb = tp->rx_fcb_head[i]; + fcb->frame_status = 0; + fcb->frame_length = 0; + fcb->info = FCB_CHAIN_END; + fcb->next_ptr = (FCBlock *)(((char*)fcb) + sizeof(FCBlock)); + if(i == NON_MAC_QUEUE) + fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr); + else + fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr); + + for(j = 1; j < tp->num_rx_fcbs[i]; j++) + { + fcb->next_ptr->back_ptr = fcb; + fcb = fcb->next_ptr; + fcb->frame_status = 0; + fcb->frame_length = 0; + fcb->info = FCB_WARNING; + fcb->next_ptr + = (FCBlock *)(((char *)fcb) + sizeof(FCBlock)); + + if(i == NON_MAC_QUEUE) + fcb->trc_next_ptr + = RX_FCB_TRC_POINTER(fcb->next_ptr); + else + fcb->trc_next_ptr + = TRC_POINTER(fcb->next_ptr); + } + + fcb->next_ptr = tp->rx_fcb_head[i]; + + if(i == NON_MAC_QUEUE) + fcb->trc_next_ptr = RX_FCB_TRC_POINTER(fcb->next_ptr); + else + fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr); + + tp->rx_fcb_head[i]->back_ptr = fcb; + tp->rx_fcb_curr[i] = tp->rx_fcb_head[i]->next_ptr; + } + + return(0); +} + +static int smctr_init_shared_memory(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i; + __u32 *iscpb; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_init_shared_memory\n", dev->name); + + smctr_set_page(dev, (__u8 *)(unsigned int)tp->iscpb_ptr); + + /* Initialize Initial System Configuration Point. (ISCP) */ + iscpb = (__u32 *)PAGE_POINTER(&tp->iscpb_ptr->trc_scgb_ptr); + *iscpb = (__u32)(SWAP_WORDS(TRC_POINTER(tp->scgb_ptr))); + + smctr_set_page(dev, (__u8 *)tp->ram_access); + + /* Initialize System Configuration Pointers. (SCP) */ + tp->scgb_ptr->config = (SCGB_ADDRESS_POINTER_FORMAT + | SCGB_MULTI_WORD_CONTROL | SCGB_DATA_FORMAT + | SCGB_BURST_LENGTH); + + tp->scgb_ptr->trc_sclb_ptr = TRC_POINTER(tp->sclb_ptr); + tp->scgb_ptr->trc_acb_ptr = TRC_POINTER(tp->acb_head); + tp->scgb_ptr->trc_isb_ptr = TRC_POINTER(tp->isb_ptr); + tp->scgb_ptr->isbsiz = (sizeof(ISBlock)) - 2; + + /* Initialize System Control Block. (SCB) */ + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_NOP; + tp->sclb_ptr->iack_code = 0; + tp->sclb_ptr->resume_control = 0; + tp->sclb_ptr->int_mask_control = 0; + tp->sclb_ptr->int_mask_state = 0; + + /* Initialize Interrupt Status Block. (ISB) */ + for(i = 0; i < NUM_OF_INTERRUPTS; i++) + { + tp->isb_ptr->IStatus[i].IType = 0xf0; + tp->isb_ptr->IStatus[i].ISubtype = 0; + } + + tp->current_isb_index = 0; + + /* Initialize Action Command Block. (ACB) */ + smctr_init_acbs(dev); + + /* Initialize transmit FCB's and BDB's. */ + smctr_link_tx_fcbs_to_bdbs(dev); + smctr_init_tx_bdbs(dev); + smctr_init_tx_fcbs(dev); + + /* Initialize receive FCB's and BDB's. */ + smctr_init_rx_bdbs(dev); + smctr_init_rx_fcbs(dev); + + return (0); +} + +static int smctr_init_tx_bdbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, j; + BDBlock *bdb; + + for(i = 0; i < NUM_TX_QS_USED; i++) + { + bdb = tp->tx_bdb_head[i]; + bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING); + bdb->next_ptr = (BDBlock *)(((char *)bdb) + sizeof(BDBlock)); + bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr); + + for(j = 1; j < tp->num_tx_bdbs[i]; j++) + { + bdb->next_ptr->back_ptr = bdb; + bdb = bdb->next_ptr; + bdb->info = (BDB_NOT_CHAIN_END | BDB_NO_WARNING); + bdb->next_ptr + = (BDBlock *)(((char *)bdb) + sizeof( BDBlock)); bdb->trc_next_ptr = TRC_POINTER(bdb->next_ptr); + } + + bdb->next_ptr = tp->tx_bdb_head[i]; + bdb->trc_next_ptr = TRC_POINTER(tp->tx_bdb_head[i]); + tp->tx_bdb_head[i]->back_ptr = bdb; + } + + return (0); +} + +static int smctr_init_tx_fcbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, j; + FCBlock *fcb; + + for(i = 0; i < NUM_TX_QS_USED; i++) + { + fcb = tp->tx_fcb_head[i]; + fcb->frame_status = 0; + fcb->frame_length = 0; + fcb->info = FCB_CHAIN_END; + fcb->next_ptr = (FCBlock *)(((char *)fcb) + sizeof(FCBlock)); + fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr); + + for(j = 1; j < tp->num_tx_fcbs[i]; j++) + { + fcb->next_ptr->back_ptr = fcb; + fcb = fcb->next_ptr; + fcb->frame_status = 0; + fcb->frame_length = 0; + fcb->info = FCB_CHAIN_END; + fcb->next_ptr + = (FCBlock *)(((char *)fcb) + sizeof(FCBlock)); + fcb->trc_next_ptr = TRC_POINTER(fcb->next_ptr); + } + + fcb->next_ptr = tp->tx_fcb_head[i]; + fcb->trc_next_ptr = TRC_POINTER(tp->tx_fcb_head[i]); + + tp->tx_fcb_head[i]->back_ptr = fcb; + tp->tx_fcb_end[i] = tp->tx_fcb_head[i]->next_ptr; + tp->tx_fcb_curr[i] = tp->tx_fcb_head[i]->next_ptr; + tp->num_tx_fcbs_used[i] = 0; + } + + return (0); +} + +static int smctr_internal_self_test(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if((err = smctr_issue_test_internal_rom_cmd(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + if(tp->acb_head->cmd_done_status & 0xff) + return (-1); + + if((err = smctr_issue_test_hic_cmd(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + if(tp->acb_head->cmd_done_status & 0xff) + return (-1); + + if((err = smctr_issue_test_mac_reg_cmd(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + if(tp->acb_head->cmd_done_status & 0xff) + return (-1); + + return (0); +} + +/* + * The typical workload of the driver: Handle the network interface interrupts. + */ +static irqreturn_t smctr_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = dev_id; + struct net_local *tp; + int ioaddr; + __u16 interrupt_unmask_bits = 0, interrupt_ack_code = 0xff00; + __u16 err1, err = NOT_MY_INTERRUPT; + __u8 isb_type, isb_subtype; + __u16 isb_index; + + if(dev == NULL) + { + printk(KERN_CRIT "%s: irq %d for unknown device.\n", dev->name, irq); + return IRQ_NONE; + } + + ioaddr = dev->base_addr; + tp = netdev_priv(dev); + + + if(tp->status == NOT_INITIALIZED) + return IRQ_NONE; + + spin_lock(&tp->lock); + + smctr_disable_bic_int(dev); + smctr_enable_16bit(dev); + + smctr_clear_int(dev); + + /* First read the LSB */ + while((tp->isb_ptr->IStatus[tp->current_isb_index].IType & 0xf0) == 0) + { + isb_index = tp->current_isb_index; + isb_type = tp->isb_ptr->IStatus[isb_index].IType; + isb_subtype = tp->isb_ptr->IStatus[isb_index].ISubtype; + + (tp->current_isb_index)++; + if(tp->current_isb_index == NUM_OF_INTERRUPTS) + tp->current_isb_index = 0; + + if(isb_type >= 0x10) + { + smctr_disable_16bit(dev); + spin_unlock(&tp->lock); + return IRQ_HANDLED; + } + + err = HARDWARE_FAILED; + interrupt_ack_code = isb_index; + tp->isb_ptr->IStatus[isb_index].IType |= 0xf0; + + interrupt_unmask_bits |= (1 << (__u16)isb_type); + + switch(isb_type) + { + case ISB_IMC_MAC_TYPE_3: + smctr_disable_16bit(dev); + + switch(isb_subtype) + { + case 0: + tp->monitor_state = MS_MONITOR_FSM_INACTIVE; + break; + + case 1: + tp->monitor_state = MS_REPEAT_BEACON_STATE; + break; + + case 2: + tp->monitor_state = MS_REPEAT_CLAIM_TOKEN_STATE; + break; + + case 3: + tp->monitor_state = MS_TRANSMIT_CLAIM_TOKEN_STATE; break; + + case 4: + tp->monitor_state = MS_STANDBY_MONITOR_STATE; + break; + + case 5: + tp->monitor_state = MS_TRANSMIT_BEACON_STATE; + break; + + case 6: + tp->monitor_state = MS_ACTIVE_MONITOR_STATE; + break; + + case 7: + tp->monitor_state = MS_TRANSMIT_RING_PURGE_STATE; + break; + + case 8: /* diagnostic state */ + break; + + case 9: + tp->monitor_state = MS_BEACON_TEST_STATE; + if(smctr_lobe_media_test(dev)) + { + tp->ring_status_flags = RING_STATUS_CHANGED; + tp->ring_status = AUTO_REMOVAL_ERROR; + smctr_ring_status_chg(dev); + smctr_bypass_state(dev); + } + else + smctr_issue_insert_cmd(dev); + break; + + /* case 0x0a-0xff, illegal states */ + default: + break; + } + + tp->ring_status_flags = MONITOR_STATE_CHANGED; + err = smctr_ring_status_chg(dev); + + smctr_enable_16bit(dev); + break; + + /* Type 0x02 - MAC Error Counters Interrupt + * One or more MAC Error Counter is half full + * MAC Error Counters + * Lost_FR_Error_Counter + * RCV_Congestion_Counter + * FR_copied_Error_Counter + * FREQ_Error_Counter + * Token_Error_Counter + * Line_Error_Counter + * Internal_Error_Count + */ + case ISB_IMC_MAC_ERROR_COUNTERS: + /* Read 802.5 Error Counters */ + err = smctr_issue_read_ring_status_cmd(dev); + break; + + /* Type 0x04 - MAC Type 2 Interrupt + * HOST needs to enqueue MAC Frame for transmission + * SubType Bit 15 - RQ_INIT_PDU( Request Initialization) * Changed from RQ_INIT_PDU to + * TRC_Status_Changed_Indicate + */ + case ISB_IMC_MAC_TYPE_2: + err = smctr_issue_read_ring_status_cmd(dev); + break; + + + /* Type 0x05 - TX Frame Interrupt (FI). */ + case ISB_IMC_TX_FRAME: + /* BUG QUEUE for TRC stuck receive BUG */ + if(isb_subtype & TX_PENDING_PRIORITY_2) + { + if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS) + break; + } + + /* NON-MAC frames only */ + if(isb_subtype & TX_PENDING_PRIORITY_1) + { + if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS) + break; + } + + /* MAC frames only */ + if(isb_subtype & TX_PENDING_PRIORITY_0) + err = smctr_tx_complete(dev, MAC_QUEUE); break; + + /* Type 0x06 - TX END OF QUEUE (FE) */ + case ISB_IMC_END_OF_TX_QUEUE: + /* BUG queue */ + if(isb_subtype & TX_PENDING_PRIORITY_2) + { + /* ok to clear Receive FIFO overrun + * imask send_BUG now completes. + */ + interrupt_unmask_bits |= 0x800; + + tp->tx_queue_status[BUG_QUEUE] = NOT_TRANSMITING; + if((err = smctr_tx_complete(dev, BUG_QUEUE)) != SUCCESS) + break; + if((err = smctr_restart_tx_chain(dev, BUG_QUEUE)) != SUCCESS) + break; + } + + /* NON-MAC queue only */ + if(isb_subtype & TX_PENDING_PRIORITY_1) + { + tp->tx_queue_status[NON_MAC_QUEUE] = NOT_TRANSMITING; + if((err = smctr_tx_complete(dev, NON_MAC_QUEUE)) != SUCCESS) + break; + if((err = smctr_restart_tx_chain(dev, NON_MAC_QUEUE)) != SUCCESS) + break; + } + + /* MAC queue only */ + if(isb_subtype & TX_PENDING_PRIORITY_0) + { + tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING; + if((err = smctr_tx_complete(dev, MAC_QUEUE)) != SUCCESS) + break; + + err = smctr_restart_tx_chain(dev, MAC_QUEUE); + } + break; + + /* Type 0x07 - NON-MAC RX Resource Interrupt + * Subtype bit 12 - (BW) BDB warning + * Subtype bit 13 - (FW) FCB warning + * Subtype bit 14 - (BE) BDB End of chain + * Subtype bit 15 - (FE) FCB End of chain + */ + case ISB_IMC_NON_MAC_RX_RESOURCE: + tp->rx_fifo_overrun_count = 0; + tp->receive_queue_number = NON_MAC_QUEUE; + err1 = smctr_rx_frame(dev); + + if(isb_subtype & NON_MAC_RX_RESOURCE_FE) + { + if((err = smctr_issue_resume_rx_fcb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break; + + if(tp->ptr_rx_fcb_overruns) + (*tp->ptr_rx_fcb_overruns)++; + } + + if(isb_subtype & NON_MAC_RX_RESOURCE_BE) + { + if((err = smctr_issue_resume_rx_bdb_cmd( dev, NON_MAC_QUEUE)) != SUCCESS) break; + + if(tp->ptr_rx_bdb_overruns) + (*tp->ptr_rx_bdb_overruns)++; + } + err = err1; + break; + + /* Type 0x08 - MAC RX Resource Interrupt + * Subtype bit 12 - (BW) BDB warning + * Subtype bit 13 - (FW) FCB warning + * Subtype bit 14 - (BE) BDB End of chain + * Subtype bit 15 - (FE) FCB End of chain + */ + case ISB_IMC_MAC_RX_RESOURCE: + tp->receive_queue_number = MAC_QUEUE; + err1 = smctr_rx_frame(dev); + + if(isb_subtype & MAC_RX_RESOURCE_FE) + { + if((err = smctr_issue_resume_rx_fcb_cmd( dev, MAC_QUEUE)) != SUCCESS) + break; + + if(tp->ptr_rx_fcb_overruns) + (*tp->ptr_rx_fcb_overruns)++; + } + + if(isb_subtype & MAC_RX_RESOURCE_BE) + { + if((err = smctr_issue_resume_rx_bdb_cmd( dev, MAC_QUEUE)) != SUCCESS) + break; + + if(tp->ptr_rx_bdb_overruns) + (*tp->ptr_rx_bdb_overruns)++; + } + err = err1; + break; + + /* Type 0x09 - NON_MAC RX Frame Interrupt */ + case ISB_IMC_NON_MAC_RX_FRAME: + tp->rx_fifo_overrun_count = 0; + tp->receive_queue_number = NON_MAC_QUEUE; + err = smctr_rx_frame(dev); + break; + + /* Type 0x0A - MAC RX Frame Interrupt */ + case ISB_IMC_MAC_RX_FRAME: + tp->receive_queue_number = MAC_QUEUE; + err = smctr_rx_frame(dev); + break; + + /* Type 0x0B - TRC status + * TRC has encountered an error condition + * subtype bit 14 - transmit FIFO underrun + * subtype bit 15 - receive FIFO overrun + */ + case ISB_IMC_TRC_FIFO_STATUS: + if(isb_subtype & TRC_FIFO_STATUS_TX_UNDERRUN) + { + if(tp->ptr_tx_fifo_underruns) + (*tp->ptr_tx_fifo_underruns)++; + } + + if(isb_subtype & TRC_FIFO_STATUS_RX_OVERRUN) + { + /* update overrun stuck receive counter + * if >= 3, has to clear it by sending + * back to back frames. We pick + * DAT(duplicate address MAC frame) + */ + tp->rx_fifo_overrun_count++; + + if(tp->rx_fifo_overrun_count >= 3) + { + tp->rx_fifo_overrun_count = 0; + + /* delay clearing fifo overrun + * imask till send_BUG tx + * complete posted + */ + interrupt_unmask_bits &= (~0x800); + printk(KERN_CRIT "Jay please send bug\n");// smctr_send_bug(dev); + } + + if(tp->ptr_rx_fifo_overruns) + (*tp->ptr_rx_fifo_overruns)++; + } + + err = SUCCESS; + break; + + /* Type 0x0C - Action Command Status Interrupt + * Subtype bit 14 - CB end of command chain (CE) + * Subtype bit 15 - CB command interrupt (CI) + */ + case ISB_IMC_COMMAND_STATUS: + err = SUCCESS; + if(tp->acb_head->cmd == ACB_CMD_HIC_NOP) + { + printk(KERN_ERR "i1\n"); + smctr_disable_16bit(dev); + + /* XXXXXXXXXXXXXXXXX */ + /* err = UM_Interrupt(dev); */ + + smctr_enable_16bit(dev); + } + else + { + if((tp->acb_head->cmd + == ACB_CMD_READ_TRC_STATUS) + && (tp->acb_head->subcmd + == RW_TRC_STATUS_BLOCK)) + { + if(tp->ptr_bcn_type != 0) + { + *(tp->ptr_bcn_type) + = (__u32)((SBlock *)tp->misc_command_data)->BCN_Type; + } + + if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & ERROR_COUNTERS_CHANGED) + { + smctr_update_err_stats(dev); + } + + if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & TI_NDIS_RING_STATUS_CHANGED) + { + tp->ring_status + = ((SBlock*)tp->misc_command_data)->TI_NDIS_Ring_Status; + smctr_disable_16bit(dev); + err = smctr_ring_status_chg(dev); + smctr_enable_16bit(dev); + if((tp->ring_status & REMOVE_RECEIVED) + && (tp->config_word0 & NO_AUTOREMOVE)) + { + smctr_issue_remove_cmd(dev); + } + + if(err != SUCCESS) + { + tp->acb_pending = 0; + break; + } + } + + if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & UNA_CHANGED) + { + if(tp->ptr_una) + { + tp->ptr_una[0] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[0]); + tp->ptr_una[1] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[1]); + tp->ptr_una[2] = SWAP_BYTES(((SBlock *)tp->misc_command_data)->UNA[2]); + } + + } + + if(((SBlock *)tp->misc_command_data)->Status_CHG_Indicate & READY_TO_SEND_RQ_INIT) { + err = smctr_send_rq_init(dev); + } + } + } + + tp->acb_pending = 0; + break; + + /* Type 0x0D - MAC Type 1 interrupt + * Subtype -- 00 FR_BCN received at S12 + * 01 FR_BCN received at S21 + * 02 FR_DAT(DA=MA, A<>0) received at S21 + * 03 TSM_EXP at S21 + * 04 FR_REMOVE received at S42 + * 05 TBR_EXP, BR_FLAG_SET at S42 + * 06 TBT_EXP at S53 + */ + case ISB_IMC_MAC_TYPE_1: + if(isb_subtype > 8) + { + err = HARDWARE_FAILED; + break; + } + + err = SUCCESS; + switch(isb_subtype) + { + case 0: + tp->join_state = JS_BYPASS_STATE; + if(tp->status != CLOSED) + { + tp->status = CLOSED; + err = smctr_status_chg(dev); + } + break; + + case 1: + tp->join_state = JS_LOBE_TEST_STATE; + break; + + case 2: + tp->join_state = JS_DETECT_MONITOR_PRESENT_STATE; + break; + + case 3: + tp->join_state = JS_AWAIT_NEW_MONITOR_STATE; + break; + + case 4: + tp->join_state = JS_DUPLICATE_ADDRESS_TEST_STATE; + break; + + case 5: + tp->join_state = JS_NEIGHBOR_NOTIFICATION_STATE; + break; + + case 6: + tp->join_state = JS_REQUEST_INITIALIZATION_STATE; + break; + + case 7: + tp->join_state = JS_JOIN_COMPLETE_STATE; + tp->status = OPEN; + err = smctr_status_chg(dev); + break; + + case 8: + tp->join_state = JS_BYPASS_WAIT_STATE; + break; + } + break ; + + /* Type 0x0E - TRC Initialization Sequence Interrupt + * Subtype -- 00-FF Initializatin sequence complete + */ + case ISB_IMC_TRC_INTRNL_TST_STATUS: + tp->status = INITIALIZED; + smctr_disable_16bit(dev); + err = smctr_status_chg(dev); + smctr_enable_16bit(dev); + break; + + /* other interrupt types, illegal */ + default: + break; + } + + if(err != SUCCESS) + break; + } + + /* Checking the ack code instead of the unmask bits here is because : + * while fixing the stuck receive, DAT frame are sent and mask off + * FIFO overrun interrupt temporarily (interrupt_unmask_bits = 0) + * but we still want to issue ack to ISB + */ + if(!(interrupt_ack_code & 0xff00)) + smctr_issue_int_ack(dev, interrupt_ack_code, interrupt_unmask_bits); + + smctr_disable_16bit(dev); + smctr_enable_bic_int(dev); + spin_unlock(&tp->lock); + + return IRQ_HANDLED; +} + +static int smctr_issue_enable_int_cmd(struct net_device *dev, + __u16 interrupt_enable_mask) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + tp->sclb_ptr->int_mask_control = interrupt_enable_mask; + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_int_ack(struct net_device *dev, __u16 iack_code, __u16 ibits) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_wait_while_cbusy(dev)) + return (-1); + + tp->sclb_ptr->int_mask_control = ibits; + tp->sclb_ptr->iack_code = iack_code << 1; /* use the offset from base */ tp->sclb_ptr->resume_control = 0; + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_IACK_CODE_VALID | SCLB_CMD_CLEAR_INTERRUPT_MASK; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_init_timers_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i; + int err; + __u16 *pTimer_Struc = (__u16 *)tp->misc_command_data; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + tp->config_word0 = THDREN | DMA_TRIGGER | USETPT | NO_AUTOREMOVE; + tp->config_word1 = 0; + + if((tp->media_type == MEDIA_STP_16) + || (tp->media_type == MEDIA_UTP_16) + || (tp->media_type == MEDIA_STP_16_UTP_16)) + { + tp->config_word0 |= FREQ_16MB_BIT; + } + + if(tp->mode_bits & EARLY_TOKEN_REL) + tp->config_word0 |= ETREN; + + if(tp->mode_bits & LOOPING_MODE_MASK) + tp->config_word0 |= RX_OWN_BIT; + else + tp->config_word0 &= ~RX_OWN_BIT; + + if(tp->receive_mask & PROMISCUOUS_MODE) + tp->config_word0 |= PROMISCUOUS_BIT; + else + tp->config_word0 &= ~PROMISCUOUS_BIT; + + if(tp->receive_mask & ACCEPT_ERR_PACKETS) + tp->config_word0 |= SAVBAD_BIT; + else + tp->config_word0 &= ~SAVBAD_BIT; + + if(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES) + tp->config_word0 |= RXATMAC; + else + tp->config_word0 &= ~RXATMAC; + + if(tp->receive_mask & ACCEPT_MULTI_PROM) + tp->config_word1 |= MULTICAST_ADDRESS_BIT; + else + tp->config_word1 &= ~MULTICAST_ADDRESS_BIT; + + if(tp->receive_mask & ACCEPT_SOURCE_ROUTING_SPANNING) + tp->config_word1 |= SOURCE_ROUTING_SPANNING_BITS; + else + { + if(tp->receive_mask & ACCEPT_SOURCE_ROUTING) + tp->config_word1 |= SOURCE_ROUTING_EXPLORER_BIT; + else + tp->config_word1 &= ~SOURCE_ROUTING_SPANNING_BITS; + } + + if((tp->media_type == MEDIA_STP_16) + || (tp->media_type == MEDIA_UTP_16) + || (tp->media_type == MEDIA_STP_16_UTP_16)) + { + tp->config_word1 |= INTERFRAME_SPACING_16; + } + else + tp->config_word1 |= INTERFRAME_SPACING_4; + + *pTimer_Struc++ = tp->config_word0; + *pTimer_Struc++ = tp->config_word1; + + if((tp->media_type == MEDIA_STP_4) + || (tp->media_type == MEDIA_UTP_4) + || (tp->media_type == MEDIA_STP_4_UTP_4)) + { + *pTimer_Struc++ = 0x00FA; /* prescale */ + *pTimer_Struc++ = 0x2710; /* TPT_limit */ + *pTimer_Struc++ = 0x2710; /* TQP_limit */ + *pTimer_Struc++ = 0x0A28; /* TNT_limit */ + *pTimer_Struc++ = 0x3E80; /* TBT_limit */ + *pTimer_Struc++ = 0x3A98; /* TSM_limit */ + *pTimer_Struc++ = 0x1B58; /* TAM_limit */ + *pTimer_Struc++ = 0x00C8; /* TBR_limit */ + *pTimer_Struc++ = 0x07D0; /* TER_limit */ + *pTimer_Struc++ = 0x000A; /* TGT_limit */ + *pTimer_Struc++ = 0x1162; /* THT_limit */ + *pTimer_Struc++ = 0x07D0; /* TRR_limit */ + *pTimer_Struc++ = 0x1388; /* TVX_limit */ + *pTimer_Struc++ = 0x0000; /* reserved */ + } + else + { + *pTimer_Struc++ = 0x03E8; /* prescale */ + *pTimer_Struc++ = 0x9C40; /* TPT_limit */ + *pTimer_Struc++ = 0x9C40; /* TQP_limit */ + *pTimer_Struc++ = 0x0A28; /* TNT_limit */ + *pTimer_Struc++ = 0x3E80; /* TBT_limit */ + *pTimer_Struc++ = 0x3A98; /* TSM_limit */ + *pTimer_Struc++ = 0x1B58; /* TAM_limit */ + *pTimer_Struc++ = 0x00C8; /* TBR_limit */ + *pTimer_Struc++ = 0x07D0; /* TER_limit */ + *pTimer_Struc++ = 0x000A; /* TGT_limit */ + *pTimer_Struc++ = 0x4588; /* THT_limit */ + *pTimer_Struc++ = 0x1F40; /* TRR_limit */ + *pTimer_Struc++ = 0x4E20; /* TVX_limit */ + *pTimer_Struc++ = 0x0000; /* reserved */ + } + + /* Set node address. */ + *pTimer_Struc++ = dev->dev_addr[0] << 8 + | (dev->dev_addr[1] & 0xFF); + *pTimer_Struc++ = dev->dev_addr[2] << 8 + | (dev->dev_addr[3] & 0xFF); + *pTimer_Struc++ = dev->dev_addr[4] << 8 + | (dev->dev_addr[5] & 0xFF); + + /* Set group address. */ + *pTimer_Struc++ = tp->group_address_0 << 8 + | tp->group_address_0 >> 8; + *pTimer_Struc++ = tp->group_address[0] << 8 + | tp->group_address[0] >> 8; + *pTimer_Struc++ = tp->group_address[1] << 8 + | tp->group_address[1] >> 8; + + /* Set functional address. */ + *pTimer_Struc++ = tp->functional_address_0 << 8 + | tp->functional_address_0 >> 8; + *pTimer_Struc++ = tp->functional_address[0] << 8 + | tp->functional_address[0] >> 8; + *pTimer_Struc++ = tp->functional_address[1] << 8 + | tp->functional_address[1] >> 8; + + /* Set Bit-Wise group address. */ + *pTimer_Struc++ = tp->bitwise_group_address[0] << 8 + | tp->bitwise_group_address[0] >> 8; + *pTimer_Struc++ = tp->bitwise_group_address[1] << 8 + | tp->bitwise_group_address[1] >> 8; + + /* Set ring number address. */ + *pTimer_Struc++ = tp->source_ring_number; + *pTimer_Struc++ = tp->target_ring_number; + + /* Physical drop number. */ + *pTimer_Struc++ = (unsigned short)0; + *pTimer_Struc++ = (unsigned short)0; + + /* Product instance ID. */ + for(i = 0; i < 9; i++) + *pTimer_Struc++ = (unsigned short)0; + + err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TRC_TIMERS, 0); + + return (err); +} + +static int smctr_issue_init_txrx_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i; + int err; + void **txrx_ptrs = (void *)tp->misc_command_data; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + { + printk(KERN_ERR "%s: Hardware failure\n", dev->name); + return (err); + } + + /* Initialize Transmit Queue Pointers that are used, to point to + * a single FCB. + */ + for(i = 0; i < NUM_TX_QS_USED; i++) + *txrx_ptrs++ = (void *)TRC_POINTER(tp->tx_fcb_head[i]); + + /* Initialize Transmit Queue Pointers that are NOT used to ZERO. */ + for(; i < MAX_TX_QS; i++) + *txrx_ptrs++ = (void *)0; + + /* Initialize Receive Queue Pointers (MAC and Non-MAC) that are + * used, to point to a single FCB and a BDB chain of buffers. + */ + for(i = 0; i < NUM_RX_QS_USED; i++) + { + *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_fcb_head[i]); + *txrx_ptrs++ = (void *)TRC_POINTER(tp->rx_bdb_head[i]); + } + + /* Initialize Receive Queue Pointers that are NOT used to ZERO. */ + for(; i < MAX_RX_QS; i++) + { + *txrx_ptrs++ = (void *)0; + *txrx_ptrs++ = (void *)0; + } + + err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_INIT_TX_RX, 0); + + return (err); +} + +static int smctr_issue_insert_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_INSERT, ACB_SUB_CMD_NOP); + + return (err); +} + +static int smctr_issue_read_ring_status_cmd(struct net_device *dev) +{ + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_READ_TRC_STATUS, + RW_TRC_STATUS_BLOCK); + + return (err); +} + +static int smctr_issue_read_word_cmd(struct net_device *dev, __u16 aword_cnt) +{ + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_READ_VALUE, + aword_cnt); + + return (err); +} + +static int smctr_issue_remove_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + tp->sclb_ptr->resume_control = 0; + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_CMD_REMOVE; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_resume_acb_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + tp->sclb_ptr->resume_control = SCLB_RC_ACB; + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID; + + tp->acb_pending = 1; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_resume_rx_bdb_cmd(struct net_device *dev, __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if(queue == MAC_QUEUE) + tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_BDB; + else + tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_BDB; + + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_resume_rx_fcb_cmd(struct net_device *dev, __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_issue_resume_rx_fcb_cmd\n", dev->name); + + if(smctr_wait_while_cbusy(dev)) + return (-1); + + if(queue == MAC_QUEUE) + tp->sclb_ptr->resume_control = SCLB_RC_RX_MAC_FCB; + else + tp->sclb_ptr->resume_control = SCLB_RC_RX_NON_MAC_FCB; + + tp->sclb_ptr->valid_command = SCLB_VALID | SCLB_RESUME_CONTROL_VALID; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_resume_tx_fcb_cmd(struct net_device *dev, __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_issue_resume_tx_fcb_cmd\n", dev->name); + + if(smctr_wait_while_cbusy(dev)) + return (-1); + + tp->sclb_ptr->resume_control = (SCLB_RC_TFCB0 << queue); + tp->sclb_ptr->valid_command = SCLB_RESUME_CONTROL_VALID | SCLB_VALID; + + smctr_set_ctrl_attention(dev); + + return (0); +} + +static int smctr_issue_test_internal_rom_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST, + TRC_INTERNAL_ROM_TEST); + + return (err); +} + +static int smctr_issue_test_hic_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_HIC_TEST, + TRC_HOST_INTERFACE_REG_TEST); + + return (err); +} + +static int smctr_issue_test_mac_reg_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST, + TRC_MAC_REGISTERS_TEST); + + return (err); +} + +static int smctr_issue_trc_loopback_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST, + TRC_INTERNAL_LOOPBACK); + + return (err); +} + +static int smctr_issue_tri_loopback_cmd(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST, + TRC_TRI_LOOPBACK); + + return (err); +} + +static int smctr_issue_write_byte_cmd(struct net_device *dev, + short aword_cnt, void *byte) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int iword, ibyte; + int err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + for(iword = 0, ibyte = 0; iword < (unsigned int)(aword_cnt & 0xff); + iword++, ibyte += 2) + { + tp->misc_command_data[iword] = (*((__u8 *)byte + ibyte) << 8) + | (*((__u8 *)byte + ibyte + 1)); + } + + return (smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE, + aword_cnt)); +} + +static int smctr_issue_write_word_cmd(struct net_device *dev, + short aword_cnt, void *word) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, err; + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = smctr_wait_cmd(dev))) + return (err); + + for(i = 0; i < (unsigned int)(aword_cnt & 0xff); i++) + tp->misc_command_data[i] = *((__u16 *)word + i); + + err = smctr_setup_single_cmd_w_data(dev, ACB_CMD_MCT_WRITE_VALUE, + aword_cnt); + + return (err); +} + +static int smctr_join_complete_state(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, + JS_JOIN_COMPLETE_STATE); + + return (err); +} + +static int smctr_link_tx_fcbs_to_bdbs(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, j; + FCBlock *fcb; + BDBlock *bdb; + + for(i = 0; i < NUM_TX_QS_USED; i++) + { + fcb = tp->tx_fcb_head[i]; + bdb = tp->tx_bdb_head[i]; + + for(j = 0; j < tp->num_tx_fcbs[i]; j++) + { + fcb->bdb_ptr = bdb; + fcb->trc_bdb_ptr = TRC_POINTER(bdb); + fcb = (FCBlock *)((char *)fcb + sizeof(FCBlock)); + bdb = (BDBlock *)((char *)bdb + sizeof(BDBlock)); + } + } + + return (0); +} + +static int smctr_load_firmware(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u16 i, checksum = 0; + int err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_load_firmware\n", dev->name); + + tp->ptr_ucode = smctr_code; + tp->num_of_tx_buffs = 4; + tp->mode_bits |= UMAC; + tp->receive_mask = 0; + tp->max_packet_size = 4177; + + /* Can only upload the firmware once per adapter reset. */ + if(tp->microcode_version != 0) + return (UCODE_PRESENT); + + /* Verify the firmware exists and is there in the right amount. */ + if((tp->ptr_ucode == 0L) + || (*(tp->ptr_ucode + UCODE_VERSION_OFFSET) < UCODE_VERSION)) + { + return (UCODE_NOT_PRESENT); + } + + /* UCODE_SIZE is not included in Checksum. */ + for(i = 0; i < *((__u16 *)(tp->ptr_ucode + UCODE_SIZE_OFFSET)); i += 2) + checksum += *((__u16 *)(tp->ptr_ucode + 2 + i)); + if(checksum) + return (UCODE_NOT_PRESENT); + + /* At this point we have a valid firmware image, lets kick it on up. */ + smctr_enable_adapter_ram(dev); + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if((smctr_checksum_firmware(dev)) + || (*(tp->ptr_ucode + UCODE_VERSION_OFFSET) + > tp->microcode_version)) + { + smctr_enable_adapter_ctrl_store(dev); + + /* Zero out ram space for firmware. */ + for(i = 0; i < CS_RAM_SIZE; i += 2) + *((__u16 *)(tp->ram_access + i)) = 0; + + smctr_decode_firmware(dev); + + tp->microcode_version = *(tp->ptr_ucode + UCODE_VERSION_OFFSET); *((__u16 *)(tp->ram_access + CS_RAM_VERSION_OFFSET)) + = (tp->microcode_version << 8); + *((__u16 *)(tp->ram_access + CS_RAM_CHECKSUM_OFFSET)) + = ~(tp->microcode_version << 8) + 1; + + smctr_disable_adapter_ctrl_store(dev); + + if(smctr_checksum_firmware(dev)) + err = HARDWARE_FAILED; + } + else + err = UCODE_PRESENT; + + smctr_disable_16bit(dev); + + return (err); +} + +static int smctr_load_node_addr(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + unsigned int i; + __u8 r; + + for(i = 0; i < 6; i++) + { + r = inb(ioaddr + LAR0 + i); + dev->dev_addr[i] = (char)r; + } + dev->addr_len = 6; + + return (0); +} + +/* Lobe Media Test. + * During the transmission of the initial 1500 lobe media MAC frames, + * the phase lock loop in the 805 chip may lock, and then un-lock, causing + * the 825 to go into a PURGE state. When performing a PURGE, the MCT + * microcode will not transmit any frames given to it by the host, and + * will consequently cause a timeout. + * + * NOTE 1: If the monitor_state is MS_BEACON_TEST_STATE, all transmit + * queues other then the one used for the lobe_media_test should be + * disabled.!? + * + * NOTE 2: If the monitor_state is MS_BEACON_TEST_STATE and the receive_mask + * has any multi-cast or promiscous bits set, the receive_mask needs to + * be changed to clear the multi-cast or promiscous mode bits, the lobe_test + * run, and then the receive mask set back to its original value if the test + * is successful. + */ +static int smctr_lobe_media_test(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, perror = 0; + unsigned short saved_rcv_mask; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_lobe_media_test\n", dev->name); + + /* Clear receive mask for lobe test. */ + saved_rcv_mask = tp->receive_mask; + tp->receive_mask = 0; + + smctr_chg_rx_mask(dev); + + /* Setup the lobe media test. */ + smctr_lobe_media_test_cmd(dev); + if(smctr_wait_cmd(dev)) + { + smctr_reset_adapter(dev); + tp->status = CLOSED; + return (LOBE_MEDIA_TEST_FAILED); + } + + /* Tx lobe media test frames. */ + for(i = 0; i < 1500; ++i) + { + if(smctr_send_lobe_media_test(dev)) + { + if(perror) + { + smctr_reset_adapter(dev); + tp->state = CLOSED; + return (LOBE_MEDIA_TEST_FAILED); + } + else + { + perror = 1; + if(smctr_lobe_media_test_cmd(dev)) + { + smctr_reset_adapter(dev); + tp->state = CLOSED; + return (LOBE_MEDIA_TEST_FAILED); + } + } + } + } + + if(smctr_send_dat(dev)) + { + if(smctr_send_dat(dev)) + { + smctr_reset_adapter(dev); + tp->state = CLOSED; + return (LOBE_MEDIA_TEST_FAILED); + } + } + + /* Check if any frames received during test. */ + if((tp->rx_fcb_curr[MAC_QUEUE]->frame_status) + || (tp->rx_fcb_curr[NON_MAC_QUEUE]->frame_status)) + { + smctr_reset_adapter(dev); + tp->state = CLOSED; + return (LOBE_MEDIA_TEST_FAILED); + } + + /* Set receive mask to "Promisc" mode. */ + tp->receive_mask = saved_rcv_mask; + + smctr_chg_rx_mask(dev); + + return (0); +} + +static int smctr_lobe_media_test_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_lobe_media_test_cmd\n", dev->name); + + /* Change to lobe media test state. */ + if(tp->monitor_state != MS_BEACON_TEST_STATE) + { + smctr_lobe_media_test_state(dev); + if(smctr_wait_cmd(dev)) + { + printk(KERN_ERR "Lobe Failed test state\n"); + return (LOBE_MEDIA_TEST_FAILED); + } + } + + err = smctr_setup_single_cmd(dev, ACB_CMD_MCT_TEST, + TRC_LOBE_MEDIA_TEST); + + return (err); +} + +static int smctr_lobe_media_test_state(struct net_device *dev) +{ + int err; + + err = smctr_setup_single_cmd(dev, ACB_CMD_CHANGE_JOIN_STATE, + JS_LOBE_TEST_STATE); + + return (err); +} + +static int smctr_make_8025_hdr(struct net_device *dev, + MAC_HEADER *rmf, MAC_HEADER *tmf, __u16 ac_fc) +{ + tmf->ac = MSB(ac_fc); /* msb is access control */ + tmf->fc = LSB(ac_fc); /* lsb is frame control */ + + tmf->sa[0] = dev->dev_addr[0]; + tmf->sa[1] = dev->dev_addr[1]; + tmf->sa[2] = dev->dev_addr[2]; + tmf->sa[3] = dev->dev_addr[3]; + tmf->sa[4] = dev->dev_addr[4]; + tmf->sa[5] = dev->dev_addr[5]; + + switch(tmf->vc) + { + /* Send RQ_INIT to RPS */ + case RQ_INIT: + tmf->da[0] = 0xc0; + tmf->da[1] = 0x00; + tmf->da[2] = 0x00; + tmf->da[3] = 0x00; + tmf->da[4] = 0x00; + tmf->da[5] = 0x02; + break; + + /* Send RPT_TX_FORWARD to CRS */ + case RPT_TX_FORWARD: + tmf->da[0] = 0xc0; + tmf->da[1] = 0x00; + tmf->da[2] = 0x00; + tmf->da[3] = 0x00; + tmf->da[4] = 0x00; + tmf->da[5] = 0x10; + break; + + /* Everything else goes to sender */ + default: + tmf->da[0] = rmf->sa[0]; + tmf->da[1] = rmf->sa[1]; + tmf->da[2] = rmf->sa[2]; + tmf->da[3] = rmf->sa[3]; + tmf->da[4] = rmf->sa[4]; + tmf->da[5] = rmf->sa[5]; + break; + } + + return (0); +} + +static int smctr_make_access_pri(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + tsv->svi = AUTHORIZED_ACCESS_PRIORITY; + tsv->svl = S_AUTHORIZED_ACCESS_PRIORITY; + + tsv->svv[0] = MSB(tp->authorized_access_priority); + tsv->svv[1] = LSB(tp->authorized_access_priority); + + return (0); +} + +static int smctr_make_addr_mod(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + tsv->svi = ADDRESS_MODIFER; + tsv->svl = S_ADDRESS_MODIFER; + + tsv->svv[0] = 0; + tsv->svv[1] = 0; + + return (0); +} + +static int smctr_make_auth_funct_class(struct net_device *dev, + MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + tsv->svi = AUTHORIZED_FUNCTION_CLASS; + tsv->svl = S_AUTHORIZED_FUNCTION_CLASS; + + tsv->svv[0] = MSB(tp->authorized_function_classes); + tsv->svv[1] = LSB(tp->authorized_function_classes); + + return (0); +} + +static int smctr_make_corr(struct net_device *dev, + MAC_SUB_VECTOR *tsv, __u16 correlator) +{ + tsv->svi = CORRELATOR; + tsv->svl = S_CORRELATOR; + + tsv->svv[0] = MSB(correlator); + tsv->svv[1] = LSB(correlator); + + return (0); +} + +static int smctr_make_funct_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + smctr_get_functional_address(dev); + + tsv->svi = FUNCTIONAL_ADDRESS; + tsv->svl = S_FUNCTIONAL_ADDRESS; + + tsv->svv[0] = MSB(tp->misc_command_data[0]); + tsv->svv[1] = LSB(tp->misc_command_data[0]); + + tsv->svv[2] = MSB(tp->misc_command_data[1]); + tsv->svv[3] = LSB(tp->misc_command_data[1]); + + return (0); +} + +static int smctr_make_group_addr(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + smctr_get_group_address(dev); + + tsv->svi = GROUP_ADDRESS; + tsv->svl = S_GROUP_ADDRESS; + + tsv->svv[0] = MSB(tp->misc_command_data[0]); + tsv->svv[1] = LSB(tp->misc_command_data[0]); + + tsv->svv[2] = MSB(tp->misc_command_data[1]); + tsv->svv[3] = LSB(tp->misc_command_data[1]); + + /* Set Group Address Sub-vector to all zeros if only the + * Group Address/Functional Address Indicator is set. + */ + if(tsv->svv[0] == 0x80 && tsv->svv[1] == 0x00 + && tsv->svv[2] == 0x00 && tsv->svv[3] == 0x00) + tsv->svv[0] = 0x00; + + return (0); +} + +static int smctr_make_phy_drop_num(struct net_device *dev, + MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + smctr_get_physical_drop_number(dev); + + tsv->svi = PHYSICAL_DROP; + tsv->svl = S_PHYSICAL_DROP; + + tsv->svv[0] = MSB(tp->misc_command_data[0]); + tsv->svv[1] = LSB(tp->misc_command_data[0]); + + tsv->svv[2] = MSB(tp->misc_command_data[1]); + tsv->svv[3] = LSB(tp->misc_command_data[1]); + + return (0); +} + +static int smctr_make_product_id(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + int i; + + tsv->svi = PRODUCT_INSTANCE_ID; + tsv->svl = S_PRODUCT_INSTANCE_ID; + + for(i = 0; i < 18; i++) + tsv->svv[i] = 0xF0; + + return (0); +} + +static int smctr_make_station_id(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + smctr_get_station_id(dev); + + tsv->svi = STATION_IDENTIFER; + tsv->svl = S_STATION_IDENTIFER; + + tsv->svv[0] = MSB(tp->misc_command_data[0]); + tsv->svv[1] = LSB(tp->misc_command_data[0]); + + tsv->svv[2] = MSB(tp->misc_command_data[1]); + tsv->svv[3] = LSB(tp->misc_command_data[1]); + + tsv->svv[4] = MSB(tp->misc_command_data[2]); + tsv->svv[5] = LSB(tp->misc_command_data[2]); + + return (0); +} + +static int smctr_make_ring_station_status(struct net_device *dev, + MAC_SUB_VECTOR * tsv) +{ + tsv->svi = RING_STATION_STATUS; + tsv->svl = S_RING_STATION_STATUS; + + tsv->svv[0] = 0; + tsv->svv[1] = 0; + tsv->svv[2] = 0; + tsv->svv[3] = 0; + tsv->svv[4] = 0; + tsv->svv[5] = 0; + + return (0); +} + +static int smctr_make_ring_station_version(struct net_device *dev, + MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + tsv->svi = RING_STATION_VERSION_NUMBER; + tsv->svl = S_RING_STATION_VERSION_NUMBER; + + tsv->svv[0] = 0xe2; /* EBCDIC - S */ + tsv->svv[1] = 0xd4; /* EBCDIC - M */ + tsv->svv[2] = 0xc3; /* EBCDIC - C */ + tsv->svv[3] = 0x40; /* EBCDIC - */ + tsv->svv[4] = 0xe5; /* EBCDIC - V */ + tsv->svv[5] = 0xF0 + (tp->microcode_version >> 4); + tsv->svv[6] = 0xF0 + (tp->microcode_version & 0x0f); + tsv->svv[7] = 0x40; /* EBCDIC - */ + tsv->svv[8] = 0xe7; /* EBCDIC - X */ + + if(tp->extra_info & CHIP_REV_MASK) + tsv->svv[9] = 0xc5; /* EBCDIC - E */ + else + tsv->svv[9] = 0xc4; /* EBCDIC - D */ + + return (0); +} + +static int smctr_make_tx_status_code(struct net_device *dev, + MAC_SUB_VECTOR *tsv, __u16 tx_fstatus) +{ + tsv->svi = TRANSMIT_STATUS_CODE; + tsv->svl = S_TRANSMIT_STATUS_CODE; + + tsv->svv[0] = ((tx_fstatus & 0x0100 >> 6) || IBM_PASS_SOURCE_ADDR); + + /* Stripped frame status of Transmitted Frame */ + tsv->svv[1] = tx_fstatus & 0xff; + + return (0); +} + +static int smctr_make_upstream_neighbor_addr(struct net_device *dev, + MAC_SUB_VECTOR *tsv) +{ + struct net_local *tp = netdev_priv(dev); + + smctr_get_upstream_neighbor_addr(dev); + + tsv->svi = UPSTREAM_NEIGHBOR_ADDRESS; + tsv->svl = S_UPSTREAM_NEIGHBOR_ADDRESS; + + tsv->svv[0] = MSB(tp->misc_command_data[0]); + tsv->svv[1] = LSB(tp->misc_command_data[0]); + + tsv->svv[2] = MSB(tp->misc_command_data[1]); + tsv->svv[3] = LSB(tp->misc_command_data[1]); + + tsv->svv[4] = MSB(tp->misc_command_data[2]); + tsv->svv[5] = LSB(tp->misc_command_data[2]); + + return (0); +} + +static int smctr_make_wrap_data(struct net_device *dev, MAC_SUB_VECTOR *tsv) +{ + tsv->svi = WRAP_DATA; + tsv->svl = S_WRAP_DATA; + + return (0); +} + +/* + * Open/initialize the board. This is called sometime after + * booting when the 'ifconfig' program is run. + * + * This routine should set everything up anew at each open, even + * registers that "should" only need to be set once at boot, so that + * there is non-reboot way to recover if something goes wrong. + */ +static int smctr_open(struct net_device *dev) +{ + int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_open\n", dev->name); + + err = smctr_init_adapter(dev); + if(err < 0) + return (err); + + return (err); +} + +/* Interrupt driven open of Token card. */ +static int smctr_open_tr(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned long flags; + int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_open_tr\n", dev->name); + + /* Now we can actually open the adapter. */ + if(tp->status == OPEN) + return (0); + if(tp->status != INITIALIZED) + return (-1); + + /* FIXME: it would work a lot better if we masked the irq sources + on the card here, then we could skip the locking and poll nicely */ + spin_lock_irqsave(&tp->lock, flags); + + smctr_set_page(dev, (__u8 *)tp->ram_access); + + if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)MAC_QUEUE))) + goto out; + + if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)MAC_QUEUE))) + goto out; + + if((err = smctr_issue_resume_rx_fcb_cmd(dev, (short)NON_MAC_QUEUE))) + goto out; + + if((err = smctr_issue_resume_rx_bdb_cmd(dev, (short)NON_MAC_QUEUE))) + goto out; + + tp->status = CLOSED; + + /* Insert into the Ring or Enter Loopback Mode. */ + if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_1) + { + tp->status = CLOSED; + + if(!(err = smctr_issue_trc_loopback_cmd(dev))) + { + if(!(err = smctr_wait_cmd(dev))) + tp->status = OPEN; + } + + smctr_status_chg(dev); + } + else + { + if((tp->mode_bits & LOOPING_MODE_MASK) == LOOPBACK_MODE_2) + { + tp->status = CLOSED; + if(!(err = smctr_issue_tri_loopback_cmd(dev))) + { + if(!(err = smctr_wait_cmd(dev))) + tp->status = OPEN; + } + + smctr_status_chg(dev); + } + else + { + if((tp->mode_bits & LOOPING_MODE_MASK) + == LOOPBACK_MODE_3) + { + tp->status = CLOSED; + if(!(err = smctr_lobe_media_test_cmd(dev))) + { + if(!(err = smctr_wait_cmd(dev))) + tp->status = OPEN; + } + smctr_status_chg(dev); + } + else + { + if(!(err = smctr_lobe_media_test(dev))) + err = smctr_issue_insert_cmd(dev); + else + { + if(err == LOBE_MEDIA_TEST_FAILED) + printk(KERN_WARNING "%s: Lobe Media Test Failure - Check cable?\n", dev->name); + } + } + } + } + +out: + spin_unlock_irqrestore(&tp->lock, flags); + + return (err); +} + +/* Check for a network adapter of this type, + * and return device structure if one exists. + */ +struct net_device __init *smctr_probe(int unit) +{ + struct net_device *dev = alloc_trdev(sizeof(struct net_local)); + static const unsigned ports[] = { + 0x200, 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x2E0, 0x300, + 0x320, 0x340, 0x360, 0x380, 0 + }; + const unsigned *port; + int err = 0; + + if (!dev) + return ERR_PTR(-ENOMEM); + + SET_MODULE_OWNER(dev); + + if (unit >= 0) { + sprintf(dev->name, "tr%d", unit); + netdev_boot_setup_check(dev); + } + + if (dev->base_addr > 0x1ff) /* Check a single specified location. */ + err = smctr_probe1(dev, dev->base_addr); + else if(dev->base_addr != 0) /* Don't probe at all. */ + err =-ENXIO; + else { + for (port = ports; *port; port++) { + err = smctr_probe1(dev, *port); + if (!err) + break; + } + } + if (err) + goto out; + err = register_netdev(dev); + if (err) + goto out1; + return dev; +out1: +#ifdef CONFIG_MCA_LEGACY + { struct net_local *tp = netdev_priv(dev); + if (tp->slot_num) + mca_mark_as_unused(tp->slot_num); + } +#endif + release_region(dev->base_addr, SMCTR_IO_EXTENT); + free_irq(dev->irq, dev); +out: + free_netdev(dev); + return ERR_PTR(err); +} + + +static int __init smctr_probe1(struct net_device *dev, int ioaddr) +{ + static unsigned version_printed; + struct net_local *tp = netdev_priv(dev); + int err; + __u32 *ram; + + if(smctr_debug && version_printed++ == 0) + printk(version); + + spin_lock_init(&tp->lock); + dev->base_addr = ioaddr; + + /* Actually detect an adapter now. */ + err = smctr_chk_isa(dev); + if(err < 0) + { + if ((err = smctr_chk_mca(dev)) < 0) { + err = -ENODEV; + goto out; + } + } + + tp = netdev_priv(dev); + dev->mem_start = tp->ram_base; + dev->mem_end = dev->mem_start + 0x10000; + ram = (__u32 *)phys_to_virt(dev->mem_start); + tp->ram_access = *(__u32 *)&ram; + tp->status = NOT_INITIALIZED; + + err = smctr_load_firmware(dev); + if(err != UCODE_PRESENT && err != SUCCESS) + { + printk(KERN_ERR "%s: Firmware load failed (%d)\n", dev->name, err); + err = -EIO; + goto out; + } + + /* Allow user to specify ring speed on module insert. */ + if(ringspeed == 4) + tp->media_type = MEDIA_UTP_4; + else + tp->media_type = MEDIA_UTP_16; + + printk(KERN_INFO "%s: %s %s at Io %#4x, Irq %d, Rom %#4x, Ram %#4x.\n", + dev->name, smctr_name, smctr_model, + (unsigned int)dev->base_addr, + dev->irq, tp->rom_base, tp->ram_base); + + dev->open = smctr_open; + dev->stop = smctr_close; + dev->hard_start_xmit = smctr_send_packet; + dev->tx_timeout = smctr_timeout; + dev->watchdog_timeo = HZ; + dev->get_stats = smctr_get_stats; + dev->set_multicast_list = &smctr_set_multicast_list; + return (0); + +out: + return err; +} + +static int smctr_process_rx_packet(MAC_HEADER *rmf, __u16 size, + struct net_device *dev, __u16 rx_status) +{ + struct net_local *tp = netdev_priv(dev); + struct sk_buff *skb; + __u16 rcode, correlator; + int err = 0; + __u8 xframe = 1; + __u16 tx_fstatus; + + rmf->vl = SWAP_BYTES(rmf->vl); + if(rx_status & FCB_RX_STATUS_DA_MATCHED) + { + switch(rmf->vc) + { + /* Received MAC Frames Processed by RS. */ + case INIT: + if((rcode = smctr_rcv_init(dev, rmf, &correlator)) == HARDWARE_FAILED) + { + return (rcode); + } + + if((err = smctr_send_rsp(dev, rmf, rcode, + correlator))) + { + return (err); + } + break; + + case CHG_PARM: + if((rcode = smctr_rcv_chg_param(dev, rmf, + &correlator)) ==HARDWARE_FAILED) + { + return (rcode); + } + + if((err = smctr_send_rsp(dev, rmf, rcode, + correlator))) + { + return (err); + } + break; + + case RQ_ADDR: + if((rcode = smctr_rcv_rq_addr_state_attch(dev, + rmf, &correlator)) != POSITIVE_ACK) + { + if(rcode == HARDWARE_FAILED) + return (rcode); + else + return (smctr_send_rsp(dev, rmf, + rcode, correlator)); + } + + if((err = smctr_send_rpt_addr(dev, rmf, + correlator))) + { + return (err); + } + break; + + case RQ_ATTCH: + if((rcode = smctr_rcv_rq_addr_state_attch(dev, + rmf, &correlator)) != POSITIVE_ACK) + { + if(rcode == HARDWARE_FAILED) + return (rcode); + else + return (smctr_send_rsp(dev, rmf, + rcode, + correlator)); + } + + if((err = smctr_send_rpt_attch(dev, rmf, + correlator))) + { + return (err); + } + break; + + case RQ_STATE: + if((rcode = smctr_rcv_rq_addr_state_attch(dev, + rmf, &correlator)) != POSITIVE_ACK) + { + if(rcode == HARDWARE_FAILED) + return (rcode); + else + return (smctr_send_rsp(dev, rmf, + rcode, + correlator)); + } + + if((err = smctr_send_rpt_state(dev, rmf, + correlator))) + { + return (err); + } + break; + + case TX_FORWARD: + if((rcode = smctr_rcv_tx_forward(dev, rmf)) + != POSITIVE_ACK) + { + if(rcode == HARDWARE_FAILED) + return (rcode); + else + return (smctr_send_rsp(dev, rmf, + rcode, + correlator)); + } + + if((err = smctr_send_tx_forward(dev, rmf, + &tx_fstatus)) == HARDWARE_FAILED) + { + return (err); + } + + if(err == A_FRAME_WAS_FORWARDED) + { + if((err = smctr_send_rpt_tx_forward(dev, + rmf, tx_fstatus)) + == HARDWARE_FAILED) + { + return (err); + } + } + break; + + /* Received MAC Frames Processed by CRS/REM/RPS. */ + case RSP: + case RQ_INIT: + case RPT_NEW_MON: + case RPT_SUA_CHG: + case RPT_ACTIVE_ERR: + case RPT_NN_INCMP: + case RPT_ERROR: + case RPT_ATTCH: + case RPT_STATE: + case RPT_ADDR: + break; + + /* Rcvd Att. MAC Frame (if RXATMAC set) or UNKNOWN */ + default: + xframe = 0; + if(!(tp->receive_mask & ACCEPT_ATT_MAC_FRAMES)) + { + rcode = smctr_rcv_unknown(dev, rmf, + &correlator); + if((err = smctr_send_rsp(dev, rmf,rcode, + correlator))) + { + return (err); + } + } + + break; + } + } + else + { + /* 1. DA doesn't match (Promiscuous Mode). + * 2. Parse for Extended MAC Frame Type. + */ + switch(rmf->vc) + { + case RSP: + case INIT: + case RQ_INIT: + case RQ_ADDR: + case RQ_ATTCH: + case RQ_STATE: + case CHG_PARM: + case RPT_ADDR: + case RPT_ERROR: + case RPT_ATTCH: + case RPT_STATE: + case RPT_NEW_MON: + case RPT_SUA_CHG: + case RPT_NN_INCMP: + case RPT_ACTIVE_ERR: + break; + + default: + xframe = 0; + break; + } + } + + /* NOTE: UNKNOWN MAC frames will NOT be passed up unless + * ACCEPT_ATT_MAC_FRAMES is set. + */ + if(((tp->receive_mask & ACCEPT_ATT_MAC_FRAMES) + && (xframe == (__u8)0)) + || ((tp->receive_mask & ACCEPT_EXT_MAC_FRAMES) + && (xframe == (__u8)1))) + { + rmf->vl = SWAP_BYTES(rmf->vl); + + if (!(skb = dev_alloc_skb(size))) + return -ENOMEM; + skb->len = size; + + /* Slide data into a sleek skb. */ + skb_put(skb, skb->len); + memcpy(skb->data, rmf, skb->len); + + /* Update Counters */ + tp->MacStat.rx_packets++; + tp->MacStat.rx_bytes += skb->len; + + /* Kick the packet on up. */ + skb->dev = dev; + skb->protocol = tr_type_trans(skb, dev); + netif_rx(skb); + dev->last_rx = jiffies; + err = 0; + } + + return (err); +} + +/* Adapter RAM test. Incremental word ODD boundary data test. */ +static int smctr_ram_memory_test(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u16 page, pages_of_ram, start_pattern = 0, word_pattern = 0, + word_read = 0, err_word = 0, err_pattern = 0; + unsigned int err_offset; + __u32 j, pword; + __u8 err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_ram_memory_test\n", dev->name); + + start_pattern = 0x0001; + pages_of_ram = tp->ram_size / tp->ram_usable; + pword = tp->ram_access; + + /* Incremental word ODD boundary test. */ + for(page = 0; (page < pages_of_ram) && (~err); + page++, start_pattern += 0x8000) + { + smctr_set_page(dev, (__u8 *)(tp->ram_access + + (page * tp->ram_usable * 1024) + 1)); + word_pattern = start_pattern; + + for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1; j += 2) + *(__u16 *)(pword + j) = word_pattern++; + + word_pattern = start_pattern; + + for(j = 1; j < (__u32)(tp->ram_usable * 1024) - 1 + && (~err); j += 2, word_pattern++) + { + word_read = *(__u16 *)(pword + j); + if(word_read != word_pattern) + { + err = (__u8)1; + err_offset = j; + err_word = word_read; + err_pattern = word_pattern; + return (RAM_TEST_FAILED); + } + } + } + + /* Zero out memory. */ + for(page = 0; page < pages_of_ram && (~err); page++) + { + smctr_set_page(dev, (__u8 *)(tp->ram_access + + (page * tp->ram_usable * 1024))); + word_pattern = 0; + + for(j = 0; j < (__u32)tp->ram_usable * 1024; j +=2) + *(__u16 *)(pword + j) = word_pattern; + + for(j =0; j < (__u32)tp->ram_usable * 1024 + && (~err); j += 2) + { + word_read = *(__u16 *)(pword + j); + if(word_read != word_pattern) + { + err = (__u8)1; + err_offset = j; + err_word = word_read; + err_pattern = word_pattern; + return (RAM_TEST_FAILED); + } + } + } + + smctr_set_page(dev, (__u8 *)tp->ram_access); + + return (0); +} + +static int smctr_rcv_chg_param(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator) +{ + MAC_SUB_VECTOR *rsv; + signed short vlen; + __u16 rcode = POSITIVE_ACK; + unsigned int svectors = F_NO_SUB_VECTORS_FOUND; + + /* This Frame can only come from a CRS */ + if((rmf->dc_sc & SC_MASK) != SC_CRS) + return(E_INAPPROPRIATE_SOURCE_CLASS); + + /* Remove MVID Length from total length. */ + vlen = (signed short)rmf->vl - 4; + + /* Point to First SVID */ + rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER)); + + /* Search for Appropriate SVID's. */ + while((vlen > 0) && (rcode == POSITIVE_ACK)) + { + switch(rsv->svi) + { + case CORRELATOR: + svectors |= F_CORRELATOR; + rcode = smctr_set_corr(dev, rsv, correlator); + break; + + case LOCAL_RING_NUMBER: + svectors |= F_LOCAL_RING_NUMBER; + rcode = smctr_set_local_ring_num(dev, rsv); + break; + + case ASSIGN_PHYSICAL_DROP: + svectors |= F_ASSIGN_PHYSICAL_DROP; + rcode = smctr_set_phy_drop(dev, rsv); + break; + + case ERROR_TIMER_VALUE: + svectors |= F_ERROR_TIMER_VALUE; + rcode = smctr_set_error_timer_value(dev, rsv); + break; + + case AUTHORIZED_FUNCTION_CLASS: + svectors |= F_AUTHORIZED_FUNCTION_CLASS; + rcode = smctr_set_auth_funct_class(dev, rsv); + break; + + case AUTHORIZED_ACCESS_PRIORITY: + svectors |= F_AUTHORIZED_ACCESS_PRIORITY; + rcode = smctr_set_auth_access_pri(dev, rsv); + break; + + default: + rcode = E_SUB_VECTOR_UNKNOWN; + break; + } + + /* Let Sender Know if SUM of SV length's is + * larger then length in MVID length field + */ + if((vlen -= rsv->svl) < 0) + rcode = E_VECTOR_LENGTH_ERROR; + + rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl); + } + + if(rcode == POSITIVE_ACK) + { + /* Let Sender Know if MVID length field + * is larger then SUM of SV length's + */ + if(vlen != 0) + rcode = E_VECTOR_LENGTH_ERROR; + else + { + /* Let Sender Know if Expected SVID Missing */ + if((svectors & R_CHG_PARM) ^ R_CHG_PARM) + rcode = E_MISSING_SUB_VECTOR; + } + } + + return (rcode); +} + +static int smctr_rcv_init(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator) +{ + MAC_SUB_VECTOR *rsv; + signed short vlen; + __u16 rcode = POSITIVE_ACK; + unsigned int svectors = F_NO_SUB_VECTORS_FOUND; + + /* This Frame can only come from a RPS */ + if((rmf->dc_sc & SC_MASK) != SC_RPS) + return (E_INAPPROPRIATE_SOURCE_CLASS); + + /* Remove MVID Length from total length. */ + vlen = (signed short)rmf->vl - 4; + + /* Point to First SVID */ + rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER)); + + /* Search for Appropriate SVID's */ + while((vlen > 0) && (rcode == POSITIVE_ACK)) + { + switch(rsv->svi) + { + case CORRELATOR: + svectors |= F_CORRELATOR; + rcode = smctr_set_corr(dev, rsv, correlator); + break; + + case LOCAL_RING_NUMBER: + svectors |= F_LOCAL_RING_NUMBER; + rcode = smctr_set_local_ring_num(dev, rsv); + break; + + case ASSIGN_PHYSICAL_DROP: + svectors |= F_ASSIGN_PHYSICAL_DROP; + rcode = smctr_set_phy_drop(dev, rsv); + break; + + case ERROR_TIMER_VALUE: + svectors |= F_ERROR_TIMER_VALUE; + rcode = smctr_set_error_timer_value(dev, rsv); + break; + + default: + rcode = E_SUB_VECTOR_UNKNOWN; + break; + } + + /* Let Sender Know if SUM of SV length's is + * larger then length in MVID length field + */ + if((vlen -= rsv->svl) < 0) + rcode = E_VECTOR_LENGTH_ERROR; + + rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl); + } + + if(rcode == POSITIVE_ACK) + { + /* Let Sender Know if MVID length field + * is larger then SUM of SV length's + */ + if(vlen != 0) + rcode = E_VECTOR_LENGTH_ERROR; + else + { + /* Let Sender Know if Expected SV Missing */ + if((svectors & R_INIT) ^ R_INIT) + rcode = E_MISSING_SUB_VECTOR; + } + } + + return (rcode); +} + +static int smctr_rcv_tx_forward(struct net_device *dev, MAC_HEADER *rmf) +{ + MAC_SUB_VECTOR *rsv; + signed short vlen; + __u16 rcode = POSITIVE_ACK; + unsigned int svectors = F_NO_SUB_VECTORS_FOUND; + + /* This Frame can only come from a CRS */ + if((rmf->dc_sc & SC_MASK) != SC_CRS) + return (E_INAPPROPRIATE_SOURCE_CLASS); + + /* Remove MVID Length from total length */ + vlen = (signed short)rmf->vl - 4; + + /* Point to First SVID */ + rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER)); + + /* Search for Appropriate SVID's */ + while((vlen > 0) && (rcode == POSITIVE_ACK)) + { + switch(rsv->svi) + { + case FRAME_FORWARD: + svectors |= F_FRAME_FORWARD; + rcode = smctr_set_frame_forward(dev, rsv, + rmf->dc_sc); + break; + + default: + rcode = E_SUB_VECTOR_UNKNOWN; + break; + } + + /* Let Sender Know if SUM of SV length's is + * larger then length in MVID length field + */ + if((vlen -= rsv->svl) < 0) + rcode = E_VECTOR_LENGTH_ERROR; + + rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl); + } + + if(rcode == POSITIVE_ACK) + { + /* Let Sender Know if MVID length field + * is larger then SUM of SV length's + */ + if(vlen != 0) + rcode = E_VECTOR_LENGTH_ERROR; + else + { + /* Let Sender Know if Expected SV Missing */ + if((svectors & R_TX_FORWARD) ^ R_TX_FORWARD) + rcode = E_MISSING_SUB_VECTOR; + } + } + + return (rcode); +} + +static int smctr_rcv_rq_addr_state_attch(struct net_device *dev, + MAC_HEADER *rmf, __u16 *correlator) +{ + MAC_SUB_VECTOR *rsv; + signed short vlen; + __u16 rcode = POSITIVE_ACK; + unsigned int svectors = F_NO_SUB_VECTORS_FOUND; + + /* Remove MVID Length from total length */ + vlen = (signed short)rmf->vl - 4; + + /* Point to First SVID */ + rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER)); + + /* Search for Appropriate SVID's */ + while((vlen > 0) && (rcode == POSITIVE_ACK)) + { + switch(rsv->svi) + { + case CORRELATOR: + svectors |= F_CORRELATOR; + rcode = smctr_set_corr(dev, rsv, correlator); + break; + + default: + rcode = E_SUB_VECTOR_UNKNOWN; + break; + } + + /* Let Sender Know if SUM of SV length's is + * larger then length in MVID length field + */ + if((vlen -= rsv->svl) < 0) + rcode = E_VECTOR_LENGTH_ERROR; + + rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl); + } + + if(rcode == POSITIVE_ACK) + { + /* Let Sender Know if MVID length field + * is larger then SUM of SV length's + */ + if(vlen != 0) + rcode = E_VECTOR_LENGTH_ERROR; + else + { + /* Let Sender Know if Expected SVID Missing */ + if((svectors & R_RQ_ATTCH_STATE_ADDR) + ^ R_RQ_ATTCH_STATE_ADDR) + rcode = E_MISSING_SUB_VECTOR; + } + } + + return (rcode); +} + +static int smctr_rcv_unknown(struct net_device *dev, MAC_HEADER *rmf, + __u16 *correlator) +{ + MAC_SUB_VECTOR *rsv; + signed short vlen; + + *correlator = 0; + + /* Remove MVID Length from total length */ + vlen = (signed short)rmf->vl - 4; + + /* Point to First SVID */ + rsv = (MAC_SUB_VECTOR *)((__u32)rmf + sizeof(MAC_HEADER)); + + /* Search for CORRELATOR for RSP to UNKNOWN */ + while((vlen > 0) && (*correlator == 0)) + { + switch(rsv->svi) + { + case CORRELATOR: + smctr_set_corr(dev, rsv, correlator); + break; + + default: + break; + } + + vlen -= rsv->svl; + rsv = (MAC_SUB_VECTOR *)((__u32)rsv + rsv->svl); + } + + return (E_UNRECOGNIZED_VECTOR_ID); +} + +/* + * Reset the 825 NIC and exit w: + * 1. The NIC reset cleared (non-reset state), halted and un-initialized. + * 2. TINT masked. + * 3. CBUSY masked. + * 4. TINT clear. + * 5. CBUSY clear. + */ +static int smctr_reset_adapter(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + /* Reseting the NIC will put it in a halted and un-initialized state. */ smctr_set_trc_reset(ioaddr); + mdelay(200); /* ~2 ms */ + + smctr_clear_trc_reset(ioaddr); + mdelay(200); /* ~2 ms */ + + /* Remove any latched interrupts that occurred prior to reseting the + * adapter or possibily caused by line glitches due to the reset. + */ + outb(tp->trc_mask | CSR_CLRTINT | CSR_CLRCBUSY, ioaddr + CSR); + + return (0); +} + +static int smctr_restart_tx_chain(struct net_device *dev, short queue) +{ + struct net_local *tp = netdev_priv(dev); + int err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_restart_tx_chain\n", dev->name); + + if(tp->num_tx_fcbs_used[queue] != 0 + && tp->tx_queue_status[queue] == NOT_TRANSMITING) + { + tp->tx_queue_status[queue] = TRANSMITING; + err = smctr_issue_resume_tx_fcb_cmd(dev, queue); + } + + return (err); +} + +static int smctr_ring_status_chg(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_ring_status_chg\n", dev->name); + + /* Check for ring_status_flag: whenever MONITOR_STATE_BIT + * Bit is set, check value of monitor_state, only then we + * enable and start transmit/receive timeout (if and only + * if it is MS_ACTIVE_MONITOR_STATE or MS_STANDBY_MONITOR_STATE) + */ + if(tp->ring_status_flags == MONITOR_STATE_CHANGED) + { + if((tp->monitor_state == MS_ACTIVE_MONITOR_STATE) + || (tp->monitor_state == MS_STANDBY_MONITOR_STATE)) + { + tp->monitor_state_ready = 1; + } + else + { + /* if adapter is NOT in either active monitor + * or standby monitor state => Disable + * transmit/receive timeout. + */ + tp->monitor_state_ready = 0; + + /* Ring speed problem, switching to auto mode. */ + if(tp->monitor_state == MS_MONITOR_FSM_INACTIVE + && !tp->cleanup) + { + printk(KERN_INFO "%s: Incorrect ring speed switching.\n", + dev->name); + smctr_set_ring_speed(dev); + } + } + } + + if(!(tp->ring_status_flags & RING_STATUS_CHANGED)) + return (0); + + switch(tp->ring_status) + { + case RING_RECOVERY: + printk(KERN_INFO "%s: Ring Recovery\n", dev->name); + tp->current_ring_status |= RING_RECOVERY; + break; + + case SINGLE_STATION: + printk(KERN_INFO "%s: Single Statinon\n", dev->name); + tp->current_ring_status |= SINGLE_STATION; + break; + + case COUNTER_OVERFLOW: + printk(KERN_INFO "%s: Counter Overflow\n", dev->name); + tp->current_ring_status |= COUNTER_OVERFLOW; + break; + + case REMOVE_RECEIVED: + printk(KERN_INFO "%s: Remove Received\n", dev->name); + tp->current_ring_status |= REMOVE_RECEIVED; + break; + + case AUTO_REMOVAL_ERROR: + printk(KERN_INFO "%s: Auto Remove Error\n", dev->name); + tp->current_ring_status |= AUTO_REMOVAL_ERROR; + break; + + case LOBE_WIRE_FAULT: + printk(KERN_INFO "%s: Lobe Wire Fault\n", dev->name); + tp->current_ring_status |= LOBE_WIRE_FAULT; + break; + + case TRANSMIT_BEACON: + printk(KERN_INFO "%s: Transmit Beacon\n", dev->name); + tp->current_ring_status |= TRANSMIT_BEACON; + break; + + case SOFT_ERROR: + printk(KERN_INFO "%s: Soft Error\n", dev->name); + tp->current_ring_status |= SOFT_ERROR; + break; + + case HARD_ERROR: + printk(KERN_INFO "%s: Hard Error\n", dev->name); + tp->current_ring_status |= HARD_ERROR; + break; + + case SIGNAL_LOSS: + printk(KERN_INFO "%s: Signal Loss\n", dev->name); + tp->current_ring_status |= SIGNAL_LOSS; + break; + + default: + printk(KERN_INFO "%s: Unknown ring status change\n", + dev->name); + break; + } + + return (0); +} + +static int smctr_rx_frame(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u16 queue, status, rx_size, err = 0; + __u8 *pbuff; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_rx_frame\n", dev->name); + + queue = tp->receive_queue_number; + + while((status = tp->rx_fcb_curr[queue]->frame_status) != SUCCESS) + { + err = HARDWARE_FAILED; + + if(((status & 0x007f) == 0) + || ((tp->receive_mask & ACCEPT_ERR_PACKETS) != 0)) + { + /* frame length less the CRC (4 bytes) + FS (1 byte) */ + rx_size = tp->rx_fcb_curr[queue]->frame_length - 5; + + pbuff = smctr_get_rx_pointer(dev, queue); + + smctr_set_page(dev, pbuff); + smctr_disable_16bit(dev); + + /* pbuff points to addr within one page */ + pbuff = (__u8 *)PAGE_POINTER(pbuff); + + if(queue == NON_MAC_QUEUE) + { + struct sk_buff *skb; + + skb = dev_alloc_skb(rx_size); + if (skb) { + skb_put(skb, rx_size); + + memcpy(skb->data, pbuff, rx_size); + + /* Update Counters */ + tp->MacStat.rx_packets++; + tp->MacStat.rx_bytes += skb->len; + + /* Kick the packet on up. */ + skb->dev = dev; + skb->protocol = tr_type_trans(skb, dev); + netif_rx(skb); + dev->last_rx = jiffies; + } else { + } + } + else + smctr_process_rx_packet((MAC_HEADER *)pbuff, + rx_size, dev, status); + } + + smctr_enable_16bit(dev); + smctr_set_page(dev, (__u8 *)tp->ram_access); + smctr_update_rx_chain(dev, queue); + + if(err != SUCCESS) + break; + } + + return (err); +} + +static int smctr_send_dat(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int i, err; + MAC_HEADER *tmf; + FCBlock *fcb; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_send_dat\n", dev->name); + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, + sizeof(MAC_HEADER))) == (FCBlock *)(-1L)) + { + return (OUT_OF_RESOURCES); + } + + /* Initialize DAT Data Fields. */ + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->ac = MSB(AC_FC_DAT); + tmf->fc = LSB(AC_FC_DAT); + + for(i = 0; i < 6; i++) + { + tmf->sa[i] = dev->dev_addr[i]; + tmf->da[i] = dev->dev_addr[i]; + + } + + tmf->vc = DAT; + tmf->dc_sc = DC_RS | SC_RS; + tmf->vl = 4; + tmf->vl = SWAP_BYTES(tmf->vl); + + /* Start Transmit. */ + if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE))) + return (err); + + /* Wait for Transmit to Complete */ + for(i = 0; i < 10000; i++) + { + if(fcb->frame_status & FCB_COMMAND_DONE) + break; + mdelay(1); + } + + /* Check if GOOD frame Tx'ed. */ + if(!(fcb->frame_status & FCB_COMMAND_DONE) + || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS)) + { + return (INITIALIZE_FAILED); + } + + /* De-allocated Tx FCB and Frame Buffer + * The FCB must be de-allocated manually if executing with + * interrupts disabled, other wise the ISR (LM_Service_Events) + * will de-allocate it when the interrupt occurs. + */ + tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING; + smctr_update_tx_chain(dev, fcb, MAC_QUEUE); + + return (0); +} + +static void smctr_timeout(struct net_device *dev) +{ + /* + * If we get here, some higher level has decided we are broken. + * There should really be a "kick me" function call instead. + * + * Resetting the token ring adapter takes a long time so just + * fake transmission time and go on trying. Our own timeout + * routine is in sktr_timer_chk() + */ + dev->trans_start = jiffies; + netif_wake_queue(dev); +} + +/* + * Gets skb from system, queues it and checks if it can be sent + */ +static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_send_packet\n", dev->name); + + /* + * Block a transmit overlap + */ + + netif_stop_queue(dev); + + if(tp->QueueSkb == 0) + return (1); /* Return with tbusy set: queue full */ + + tp->QueueSkb--; + skb_queue_tail(&tp->SendSkbQueue, skb); + smctr_hardware_send_packet(dev, tp); + if(tp->QueueSkb > 0) + netif_wake_queue(dev); + + return (0); +} + +static int smctr_send_lobe_media_test(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + MAC_SUB_VECTOR *tsv; + MAC_HEADER *tmf; + FCBlock *fcb; + __u32 i; + int err; + + if(smctr_debug > 15) + printk(KERN_DEBUG "%s: smctr_send_lobe_media_test\n", dev->name); + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(struct trh_hdr) + + S_WRAP_DATA + S_WRAP_DATA)) == (FCBlock *)(-1L)) + { + return (OUT_OF_RESOURCES); + } + + /* Initialize DAT Data Fields. */ + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->ac = MSB(AC_FC_LOBE_MEDIA_TEST); + tmf->fc = LSB(AC_FC_LOBE_MEDIA_TEST); + + for(i = 0; i < 6; i++) + { + tmf->da[i] = 0; + tmf->sa[i] = dev->dev_addr[i]; + } + + tmf->vc = LOBE_MEDIA_TEST; + tmf->dc_sc = DC_RS | SC_RS; + tmf->vl = 4; + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_wrap_data(dev, tsv); + tmf->vl += tsv->svl; + + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_wrap_data(dev, tsv); + tmf->vl += tsv->svl; + + /* Start Transmit. */ + tmf->vl = SWAP_BYTES(tmf->vl); + if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE))) + return (err); + + /* Wait for Transmit to Complete. (10 ms). */ + for(i=0; i < 10000; i++) + { + if(fcb->frame_status & FCB_COMMAND_DONE) + break; + mdelay(1); + } + + /* Check if GOOD frame Tx'ed */ + if(!(fcb->frame_status & FCB_COMMAND_DONE) + || fcb->frame_status & (FCB_TX_STATUS_E | FCB_TX_AC_BITS)) + { + return (LOBE_MEDIA_TEST_FAILED); + } + + /* De-allocated Tx FCB and Frame Buffer + * The FCB must be de-allocated manually if executing with + * interrupts disabled, other wise the ISR (LM_Service_Events) + * will de-allocate it when the interrupt occurs. + */ + tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING; + smctr_update_tx_chain(dev, fcb, MAC_QUEUE); + + return (0); +} + +static int smctr_send_rpt_addr(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator) +{ + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_CORRELATOR + S_PHYSICAL_DROP + S_UPSTREAM_NEIGHBOR_ADDRESS + + S_ADDRESS_MODIFER + S_GROUP_ADDRESS + S_FUNCTIONAL_ADDRESS)) + == (FCBlock *)(-1L)) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RPT_ADDR; + tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ADDR); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_corr(dev, tsv, correlator); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_phy_drop_num(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_upstream_neighbor_addr(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_addr_mod(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_group_addr(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_funct_addr(dev, tsv); + + tmf->vl += tsv->svl; + + /* Subtract out MVID and MVL which is + * include in both vl and MAC_HEADER + */ +/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4; + fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4; +*/ + tmf->vl = SWAP_BYTES(tmf->vl); + + return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE)); +} + +static int smctr_send_rpt_attch(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator) +{ + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_CORRELATOR + S_PRODUCT_INSTANCE_ID + S_FUNCTIONAL_ADDRESS + + S_AUTHORIZED_FUNCTION_CLASS + S_AUTHORIZED_ACCESS_PRIORITY)) + == (FCBlock *)(-1L)) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RPT_ATTCH; + tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_ATTCH); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_corr(dev, tsv, correlator); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_product_id(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_funct_addr(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_auth_funct_class(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_access_pri(dev, tsv); + + tmf->vl += tsv->svl; + + /* Subtract out MVID and MVL which is + * include in both vl and MAC_HEADER + */ +/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4; + fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4; +*/ + tmf->vl = SWAP_BYTES(tmf->vl); + + return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE)); +} + +static int smctr_send_rpt_state(struct net_device *dev, MAC_HEADER *rmf, + __u16 correlator) +{ + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_CORRELATOR + S_RING_STATION_VERSION_NUMBER + + S_RING_STATION_STATUS + S_STATION_IDENTIFER)) + == (FCBlock *)(-1L)) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RPT_STATE; + tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_STATE); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_corr(dev, tsv, correlator); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_ring_station_version(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_ring_station_status(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_station_id(dev, tsv); + + tmf->vl += tsv->svl; + + /* Subtract out MVID and MVL which is + * include in both vl and MAC_HEADER + */ +/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4; + fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4; +*/ + tmf->vl = SWAP_BYTES(tmf->vl); + + return (smctr_trc_send_packet(dev, fcb, MAC_QUEUE)); +} + +static int smctr_send_rpt_tx_forward(struct net_device *dev, + MAC_HEADER *rmf, __u16 tx_fstatus) +{ + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_TRANSMIT_STATUS_CODE)) == (FCBlock *)(-1L)) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RPT_TX_FORWARD; + tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RPT_TX_FORWARD); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_tx_status_code(dev, tsv, tx_fstatus); + + tmf->vl += tsv->svl; + + /* Subtract out MVID and MVL which is + * include in both vl and MAC_HEADER + */ +/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4; + fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4; +*/ + tmf->vl = SWAP_BYTES(tmf->vl); + + return(smctr_trc_send_packet(dev, fcb, MAC_QUEUE)); +} + +static int smctr_send_rsp(struct net_device *dev, MAC_HEADER *rmf, + __u16 rcode, __u16 correlator) +{ + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_CORRELATOR + S_RESPONSE_CODE)) == (FCBlock *)(-1L)) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RSP; + tmf->dc_sc = (rmf->dc_sc & SC_MASK) << 4; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, rmf, tmf, AC_FC_RSP); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_corr(dev, tsv, correlator); + + return (0); +} + +static int smctr_send_rq_init(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + MAC_HEADER *tmf; + MAC_SUB_VECTOR *tsv; + FCBlock *fcb; + unsigned int i, count = 0; + __u16 fstatus; + int err; + + do { + if(((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, sizeof(MAC_HEADER) + + S_PRODUCT_INSTANCE_ID + S_UPSTREAM_NEIGHBOR_ADDRESS + + S_RING_STATION_VERSION_NUMBER + S_ADDRESS_MODIFER)) + == (FCBlock *)(-1L))) + { + return (0); + } + + tmf = (MAC_HEADER *)fcb->bdb_ptr->data_block_ptr; + tmf->vc = RQ_INIT; + tmf->dc_sc = DC_RPS | SC_RS; + tmf->vl = 4; + + smctr_make_8025_hdr(dev, NULL, tmf, AC_FC_RQ_INIT); + + tsv = (MAC_SUB_VECTOR *)((__u32)tmf + sizeof(MAC_HEADER)); + smctr_make_product_id(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_upstream_neighbor_addr(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_ring_station_version(dev, tsv); + + tmf->vl += tsv->svl; + tsv = (MAC_SUB_VECTOR *)((__u32)tsv + tsv->svl); + smctr_make_addr_mod(dev, tsv); + + tmf->vl += tsv->svl; + + /* Subtract out MVID and MVL which is + * include in both vl and MAC_HEADER + */ +/* fcb->frame_length = tmf->vl + sizeof(MAC_HEADER) - 4; + fcb->bdb_ptr->buffer_length = tmf->vl + sizeof(MAC_HEADER) - 4; +*/ + tmf->vl = SWAP_BYTES(tmf->vl); + + if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE))) + return (err); + + /* Wait for Transmit to Complete */ + for(i = 0; i < 10000; i++) + { + if(fcb->frame_status & FCB_COMMAND_DONE) + break; + mdelay(1); + } + + /* Check if GOOD frame Tx'ed */ + fstatus = fcb->frame_status; + + if(!(fstatus & FCB_COMMAND_DONE)) + return (HARDWARE_FAILED); + + if(!(fstatus & FCB_TX_STATUS_E)) + count++; + + /* De-allocated Tx FCB and Frame Buffer + * The FCB must be de-allocated manually if executing with + * interrupts disabled, other wise the ISR (LM_Service_Events) + * will de-allocate it when the interrupt occurs. + */ + tp->tx_queue_status[MAC_QUEUE] = NOT_TRANSMITING; + smctr_update_tx_chain(dev, fcb, MAC_QUEUE); + } while(count < 4 && ((fstatus & FCB_TX_AC_BITS) ^ FCB_TX_AC_BITS)); + + return (smctr_join_complete_state(dev)); +} + +static int smctr_send_tx_forward(struct net_device *dev, MAC_HEADER *rmf, + __u16 *tx_fstatus) +{ + struct net_local *tp = netdev_priv(dev); + FCBlock *fcb; + unsigned int i; + int err; + + /* Check if this is the END POINT of the Transmit Forward Chain. */ + if(rmf->vl <= 18) + return (0); + + /* Allocate Transmit FCB only by requesting 0 bytes + * of data buffer. + */ + if((fcb = smctr_get_tx_fcb(dev, MAC_QUEUE, 0)) == (FCBlock *)(-1L)) + return (0); + + /* Set pointer to Transmit Frame Buffer to the data + * portion of the received TX Forward frame, making + * sure to skip over the Vector Code (vc) and Vector + * length (vl). + */ + fcb->bdb_ptr->trc_data_block_ptr = TRC_POINTER((__u32)rmf + + sizeof(MAC_HEADER) + 2); + fcb->bdb_ptr->data_block_ptr = (__u16 *)((__u32)rmf + + sizeof(MAC_HEADER) + 2); + + fcb->frame_length = rmf->vl - 4 - 2; + fcb->bdb_ptr->buffer_length = rmf->vl - 4 - 2; + + if((err = smctr_trc_send_packet(dev, fcb, MAC_QUEUE))) + return (err); + + /* Wait for Transmit to Complete */ + for(i = 0; i < 10000; i++) + { + if(fcb->frame_status & FCB_COMMAND_DONE) + break; + mdelay(1); + } + + /* Check if GOOD frame Tx'ed */ + if(!(fcb->frame_status & FCB_COMMAND_DONE)) + { + if((err = smctr_issue_resume_tx_fcb_cmd(dev, MAC_QUEUE))) + return (err); + + for(i = 0; i < 10000; i++) + { + if(fcb->frame_status & FCB_COMMAND_DONE) + break; + mdelay(1); + } + + if(!(fcb->frame_status & FCB_COMMAND_DONE)) + return (HARDWARE_FAILED); + } + + *tx_fstatus = fcb->frame_status; + + return (A_FRAME_WAS_FORWARDED); +} + +static int smctr_set_auth_access_pri(struct net_device *dev, + MAC_SUB_VECTOR *rsv) +{ + struct net_local *tp = netdev_priv(dev); + + if(rsv->svl != S_AUTHORIZED_ACCESS_PRIORITY) + return (E_SUB_VECTOR_LENGTH_ERROR); + + tp->authorized_access_priority = (rsv->svv[0] << 8 | rsv->svv[1]); + + return (POSITIVE_ACK); +} + +static int smctr_set_auth_funct_class(struct net_device *dev, + MAC_SUB_VECTOR *rsv) +{ + struct net_local *tp = netdev_priv(dev); + + if(rsv->svl != S_AUTHORIZED_FUNCTION_CLASS) + return (E_SUB_VECTOR_LENGTH_ERROR); + + tp->authorized_function_classes = (rsv->svv[0] << 8 | rsv->svv[1]); + + return (POSITIVE_ACK); +} + +static int smctr_set_corr(struct net_device *dev, MAC_SUB_VECTOR *rsv, + __u16 *correlator) +{ + if(rsv->svl != S_CORRELATOR) + return (E_SUB_VECTOR_LENGTH_ERROR); + + *correlator = (rsv->svv[0] << 8 | rsv->svv[1]); + + return (POSITIVE_ACK); +} + +static int smctr_set_error_timer_value(struct net_device *dev, + MAC_SUB_VECTOR *rsv) +{ + __u16 err_tval; + int err; + + if(rsv->svl != S_ERROR_TIMER_VALUE) + return (E_SUB_VECTOR_LENGTH_ERROR); + + err_tval = (rsv->svv[0] << 8 | rsv->svv[1])*10; + + smctr_issue_write_word_cmd(dev, RW_TER_THRESHOLD, &err_tval); + + if((err = smctr_wait_cmd(dev))) + return (err); + + return (POSITIVE_ACK); +} + +static int smctr_set_frame_forward(struct net_device *dev, + MAC_SUB_VECTOR *rsv, __u8 dc_sc) +{ + if((rsv->svl < 2) || (rsv->svl > S_FRAME_FORWARD)) + return (E_SUB_VECTOR_LENGTH_ERROR); + + if((dc_sc & DC_MASK) != DC_CRS) + { + if(rsv->svl >= 2 && rsv->svl < 20) + return (E_TRANSMIT_FORWARD_INVALID); + + if((rsv->svv[0] != 0) || (rsv->svv[1] != 0)) + return (E_TRANSMIT_FORWARD_INVALID); + } + + return (POSITIVE_ACK); +} + +static int smctr_set_local_ring_num(struct net_device *dev, + MAC_SUB_VECTOR *rsv) +{ + struct net_local *tp = netdev_priv(dev); + + if(rsv->svl != S_LOCAL_RING_NUMBER) + return (E_SUB_VECTOR_LENGTH_ERROR); + + if(tp->ptr_local_ring_num) + *(__u16 *)(tp->ptr_local_ring_num) + = (rsv->svv[0] << 8 | rsv->svv[1]); + + return (POSITIVE_ACK); +} + +static unsigned short smctr_set_ctrl_attention(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if(tp->bic_type == BIC_585_CHIP) + outb((tp->trc_mask | HWR_CA), ioaddr + HWR); + else + { + outb((tp->trc_mask | CSR_CA), ioaddr + CSR); + outb(tp->trc_mask, ioaddr + CSR); + } + + return (0); +} + +static void smctr_set_multicast_list(struct net_device *dev) +{ + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_set_multicast_list\n", dev->name); + + return; +} + +static int smctr_set_page(struct net_device *dev, __u8 *buf) +{ + struct net_local *tp = netdev_priv(dev); + __u8 amask; + __u32 tptr; + + tptr = (__u32)buf - (__u32)tp->ram_access; + amask = (__u8)((tptr & PR_PAGE_MASK) >> 8); + outb(amask, dev->base_addr + PR); + + return (0); +} + +static int smctr_set_phy_drop(struct net_device *dev, MAC_SUB_VECTOR *rsv) +{ + int err; + + if(rsv->svl != S_PHYSICAL_DROP) + return (E_SUB_VECTOR_LENGTH_ERROR); + + smctr_issue_write_byte_cmd(dev, RW_PHYSICAL_DROP_NUMBER, &rsv->svv[0]); + if((err = smctr_wait_cmd(dev))) + return (err); + + return (POSITIVE_ACK); +} + +/* Reset the ring speed to the opposite of what it was. This auto-pilot + * mode requires a complete reset and re-init of the adapter. + */ +static int smctr_set_ring_speed(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + int err; + + if(tp->media_type == MEDIA_UTP_16) + tp->media_type = MEDIA_UTP_4; + else + tp->media_type = MEDIA_UTP_16; + + smctr_enable_16bit(dev); + + /* Re-Initialize adapter's internal registers */ + smctr_reset_adapter(dev); + + if((err = smctr_init_card_real(dev))) + return (err); + + smctr_enable_bic_int(dev); + + if((err = smctr_issue_enable_int_cmd(dev, TRC_INTERRUPT_ENABLE_MASK))) + return (err); + + smctr_disable_16bit(dev); + + return (0); +} + +static int smctr_set_rx_look_ahead(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + __u16 sword, rword; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_set_rx_look_ahead_flag\n", dev->name); + + tp->adapter_flags &= ~(FORCED_16BIT_MODE); + tp->adapter_flags |= RX_VALID_LOOKAHEAD; + + if(tp->adapter_bus == BUS_ISA16_TYPE) + { + sword = *((__u16 *)(tp->ram_access)); + *((__u16 *)(tp->ram_access)) = 0x1234; + + smctr_disable_16bit(dev); + rword = *((__u16 *)(tp->ram_access)); + smctr_enable_16bit(dev); + + if(rword != 0x1234) + tp->adapter_flags |= FORCED_16BIT_MODE; + + *((__u16 *)(tp->ram_access)) = sword; + } + + return (0); +} + +static int smctr_set_trc_reset(int ioaddr) +{ + __u8 r; + + r = inb(ioaddr + MSR); + outb(MSR_RST | r, ioaddr + MSR); + + return (0); +} + +/* + * This function can be called if the adapter is busy or not. + */ +static int smctr_setup_single_cmd(struct net_device *dev, + __u16 command, __u16 subcommand) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int err; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_setup_single_cmd\n", dev->name); + + if((err = smctr_wait_while_cbusy(dev))) + return (err); + + if((err = (unsigned int)smctr_wait_cmd(dev))) + return (err); + + tp->acb_head->cmd_done_status = 0; + tp->acb_head->cmd = command; + tp->acb_head->subcmd = subcommand; + + err = smctr_issue_resume_acb_cmd(dev); + + return (err); +} + +/* + * This function can not be called with the adapter busy. + */ +static int smctr_setup_single_cmd_w_data(struct net_device *dev, + __u16 command, __u16 subcommand) +{ + struct net_local *tp = netdev_priv(dev); + + tp->acb_head->cmd_done_status = ACB_COMMAND_NOT_DONE; + tp->acb_head->cmd = command; + tp->acb_head->subcmd = subcommand; + tp->acb_head->data_offset_lo + = (__u16)TRC_POINTER(tp->misc_command_data); + + return(smctr_issue_resume_acb_cmd(dev)); +} + +static char *smctr_malloc(struct net_device *dev, __u16 size) +{ + struct net_local *tp = netdev_priv(dev); + char *m; + + m = (char *)(tp->ram_access + tp->sh_mem_used); + tp->sh_mem_used += (__u32)size; + + return (m); +} + +static int smctr_status_chg(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_status_chg\n", dev->name); + + switch(tp->status) + { + case OPEN: + break; + + case CLOSED: + break; + + /* Interrupt driven open() completion. XXX */ + case INITIALIZED: + tp->group_address_0 = 0; + tp->group_address[0] = 0; + tp->group_address[1] = 0; + tp->functional_address_0 = 0; + tp->functional_address[0] = 0; + tp->functional_address[1] = 0; + smctr_open_tr(dev); + break; + + default: + printk(KERN_INFO "%s: status change unknown %x\n", + dev->name, tp->status); + break; + } + + return (0); +} + +static int smctr_trc_send_packet(struct net_device *dev, FCBlock *fcb, + __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + int err = 0; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_trc_send_packet\n", dev->name); + + fcb->info = FCB_CHAIN_END | FCB_ENABLE_TFS; + if(tp->num_tx_fcbs[queue] != 1) + fcb->back_ptr->info = FCB_INTERRUPT_ENABLE | FCB_ENABLE_TFS; + + if(tp->tx_queue_status[queue] == NOT_TRANSMITING) + { + tp->tx_queue_status[queue] = TRANSMITING; + err = smctr_issue_resume_tx_fcb_cmd(dev, queue); + } + + return (err); +} + +static __u16 smctr_tx_complete(struct net_device *dev, __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + __u16 status, err = 0; + int cstatus; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_tx_complete\n", dev->name); + + while((status = tp->tx_fcb_end[queue]->frame_status) != SUCCESS) + { + if(status & 0x7e00 ) + { + err = HARDWARE_FAILED; + break; + } + + if((err = smctr_update_tx_chain(dev, tp->tx_fcb_end[queue], + queue)) != SUCCESS) + break; + + smctr_disable_16bit(dev); + + if(tp->mode_bits & UMAC) + { + if(!(status & (FCB_TX_STATUS_AR1 | FCB_TX_STATUS_AR2))) + cstatus = NO_SUCH_DESTINATION; + else + { + if(!(status & (FCB_TX_STATUS_CR1 | FCB_TX_STATUS_CR2))) + cstatus = DEST_OUT_OF_RESOURCES; + else + { + if(status & FCB_TX_STATUS_E) + cstatus = MAX_COLLISIONS; + else + cstatus = SUCCESS; + } + } + } + else + cstatus = SUCCESS; + + if(queue == BUG_QUEUE) + err = SUCCESS; + + smctr_enable_16bit(dev); + if(err != SUCCESS) + break; + } + + return (err); +} + +static unsigned short smctr_tx_move_frame(struct net_device *dev, + struct sk_buff *skb, __u8 *pbuff, unsigned int bytes) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int ram_usable; + __u32 flen, len, offset = 0; + __u8 *frag, *page; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_tx_move_frame\n", dev->name); + + ram_usable = ((unsigned int)tp->ram_usable) << 10; + frag = skb->data; + flen = skb->len; + + while(flen > 0 && bytes > 0) + { + smctr_set_page(dev, pbuff); + + offset = SMC_PAGE_OFFSET(pbuff); + + if(offset + flen > ram_usable) + len = ram_usable - offset; + else + len = flen; + + if(len > bytes) + len = bytes; + + page = (char *) (offset + tp->ram_access); + memcpy(page, frag, len); + + flen -=len; + bytes -= len; + frag += len; + pbuff += len; + } + + return (0); +} + +/* Update the error statistic counters for this adapter. */ +static int smctr_update_err_stats(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + struct tr_statistics *tstat = &tp->MacStat; + + if(tstat->internal_errors) + tstat->internal_errors + += *(tp->misc_command_data + 0) & 0x00ff; + + if(tstat->line_errors) + tstat->line_errors += *(tp->misc_command_data + 0) >> 8; + + if(tstat->A_C_errors) + tstat->A_C_errors += *(tp->misc_command_data + 1) & 0x00ff; + + if(tstat->burst_errors) + tstat->burst_errors += *(tp->misc_command_data + 1) >> 8; + + if(tstat->abort_delimiters) + tstat->abort_delimiters += *(tp->misc_command_data + 2) >> 8; + + if(tstat->recv_congest_count) + tstat->recv_congest_count + += *(tp->misc_command_data + 3) & 0x00ff; + + if(tstat->lost_frames) + tstat->lost_frames + += *(tp->misc_command_data + 3) >> 8; + + if(tstat->frequency_errors) + tstat->frequency_errors += *(tp->misc_command_data + 4) & 0x00ff; + + if(tstat->frame_copied_errors) + tstat->frame_copied_errors + += *(tp->misc_command_data + 4) >> 8; + + if(tstat->token_errors) + tstat->token_errors += *(tp->misc_command_data + 5) >> 8; + + return (0); +} + +static int smctr_update_rx_chain(struct net_device *dev, __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + FCBlock *fcb; + BDBlock *bdb; + __u16 size, len; + + fcb = tp->rx_fcb_curr[queue]; + len = fcb->frame_length; + + fcb->frame_status = 0; + fcb->info = FCB_CHAIN_END; + fcb->back_ptr->info = FCB_WARNING; + + tp->rx_fcb_curr[queue] = tp->rx_fcb_curr[queue]->next_ptr; + + /* update RX BDBs */ + size = (len >> RX_BDB_SIZE_SHIFT); + if(len & RX_DATA_BUFFER_SIZE_MASK) + size += sizeof(BDBlock); + size &= (~RX_BDB_SIZE_MASK); + + /* check if wrap around */ + bdb = (BDBlock *)((__u32)(tp->rx_bdb_curr[queue]) + (__u32)(size)); + if((__u32)bdb >= (__u32)tp->rx_bdb_end[queue]) + { + bdb = (BDBlock *)((__u32)(tp->rx_bdb_head[queue]) + + (__u32)(bdb) - (__u32)(tp->rx_bdb_end[queue])); + } + + bdb->back_ptr->info = BDB_CHAIN_END; + tp->rx_bdb_curr[queue]->back_ptr->info = BDB_NOT_CHAIN_END; + tp->rx_bdb_curr[queue] = bdb; + + return (0); +} + +static int smctr_update_tx_chain(struct net_device *dev, FCBlock *fcb, + __u16 queue) +{ + struct net_local *tp = netdev_priv(dev); + + if(smctr_debug > 20) + printk(KERN_DEBUG "smctr_update_tx_chain\n"); + + if(tp->num_tx_fcbs_used[queue] <= 0) + return (HARDWARE_FAILED); + else + { + if(tp->tx_buff_used[queue] < fcb->memory_alloc) + { + tp->tx_buff_used[queue] = 0; + return (HARDWARE_FAILED); + } + + tp->tx_buff_used[queue] -= fcb->memory_alloc; + + /* if all transmit buffer are cleared + * need to set the tx_buff_curr[] to tx_buff_head[] + * otherwise, tx buffer will be segregate and cannot + * accommodate and buffer greater than (curr - head) and + * (end - curr) since we do not allow wrap around allocation. + */ + if(tp->tx_buff_used[queue] == 0) + tp->tx_buff_curr[queue] = tp->tx_buff_head[queue]; + + tp->num_tx_fcbs_used[queue]--; + fcb->frame_status = 0; + tp->tx_fcb_end[queue] = fcb->next_ptr; + netif_wake_queue(dev); + return (0); + } +} + +static int smctr_wait_cmd(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int loop_count = 0x20000; + + if(smctr_debug > 10) + printk(KERN_DEBUG "%s: smctr_wait_cmd\n", dev->name); + + while(loop_count) + { + if(tp->acb_head->cmd_done_status & ACB_COMMAND_DONE) + break; + udelay(1); + loop_count--; + } + + if(loop_count == 0) + return(HARDWARE_FAILED); + + if(tp->acb_head->cmd_done_status & 0xff) + return(HARDWARE_FAILED); + + return (0); +} + +static int smctr_wait_while_cbusy(struct net_device *dev) +{ + struct net_local *tp = netdev_priv(dev); + unsigned int timeout = 0x20000; + int ioaddr = dev->base_addr; + __u8 r; + + if(tp->bic_type == BIC_585_CHIP) + { + while(timeout) + { + r = inb(ioaddr + HWR); + if((r & HWR_CBUSY) == 0) + break; + timeout--; + } + } + else + { + while(timeout) + { + r = inb(ioaddr + CSR); + if((r & CSR_CBUSY) == 0) + break; + timeout--; + } + } + + if(timeout) + return (0); + else + return (HARDWARE_FAILED); +} + +#ifdef MODULE + +static struct net_device* dev_smctr[SMCTR_MAX_ADAPTERS]; +static int io[SMCTR_MAX_ADAPTERS]; +static int irq[SMCTR_MAX_ADAPTERS]; + +MODULE_LICENSE("GPL"); + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +module_param(ringspeed, int, 0); + +static struct net_device *setup_card(int n) +{ + struct net_device *dev = alloc_trdev(sizeof(struct net_local)); + int err; + + if (!dev) + return ERR_PTR(-ENOMEM); + + dev->irq = irq[n]; + err = smctr_probe1(dev, io[n]); + if (err) + goto out; + + err = register_netdev(dev); + if (err) + goto out1; + return dev; + out1: +#ifdef CONFIG_MCA_LEGACY + { struct net_local *tp = netdev_priv(dev); + if (tp->slot_num) + mca_mark_as_unused(tp->slot_num); + } +#endif + release_region(dev->base_addr, SMCTR_IO_EXTENT); + free_irq(dev->irq, dev); +out: + free_netdev(dev); + return ERR_PTR(err); +} + + +int init_module(void) +{ + int i, found = 0; + struct net_device *dev; + + for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) { + dev = io[0]? setup_card(i) : smctr_probe(-1); + if (!IS_ERR(dev)) { + ++found; + dev_smctr[i] = dev; + } + } + + return found ? 0 : -ENODEV; +} + +void cleanup_module(void) +{ + int i; + + for(i = 0; i < SMCTR_MAX_ADAPTERS; i++) { + struct net_device *dev = dev_smctr[i]; + + if (dev) { + + unregister_netdev(dev); +#ifdef CONFIG_MCA_LEGACY + { struct net_local *tp = netdev_priv(dev); + if (tp->slot_num) + mca_mark_as_unused(tp->slot_num); + } +#endif + release_region(dev->base_addr, SMCTR_IO_EXTENT); + if (dev->irq) + free_irq(dev->irq, dev); + + free_netdev(dev); + } + } +} +#endif /* MODULE */ |