1873 lines
46 KiB
C
1873 lines
46 KiB
C
/*
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* dp8390.c
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*
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* This file contains a ethernet device driver for NS dp8390 based ethernet
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* cards.
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*
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* Created: before Dec 28, 1992 by Philip Homburg <philip@f-mnx.phicoh.com>
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*
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* Modified Mar 10 1994 by Philip Homburg
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* Become a generic dp8390 driver.
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*
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* Modified Dec 20 1996 by G. Falzoni <falzoni@marina.scn.de>
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* Added support for 3c503 boards.
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*/
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#include <minix/drivers.h>
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#include <minix/netdriver.h>
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#include <stdlib.h>
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#include <minix/com.h>
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#include <minix/endpoint.h>
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#include <minix/ds.h>
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#include <net/hton.h>
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#include <net/gen/ether.h>
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#include <net/gen/eth_io.h>
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#include <machine/vm.h>
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#include <sys/mman.h>
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#include "assert.h"
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#include "local.h"
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#include "dp8390.h"
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static dpeth_t de_state;
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static int de_instance;
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u32_t system_hz;
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/* Configuration */
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typedef struct dp_conf
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{
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port_t dpc_port;
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int dpc_irq;
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phys_bytes dpc_mem;
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} dp_conf_t;
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#define DP_CONF_NR 4
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static dp_conf_t dp_conf[DP_CONF_NR]= /* Card addresses */
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{
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/* I/O port, IRQ, Buffer address. */
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{ 0x280, 3, 0xD0000, },
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{ 0x300, 5, 0xC8000, },
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{ 0x380, 10, 0xD8000, },
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{ 0x000, 0, 0x00000, },
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};
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/* Card inits configured out? */
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#if !ENABLE_WDETH
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#define wdeth_probe(dep) (0)
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#endif
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#if !ENABLE_NE2000
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#define ne_probe(dep) (0)
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#endif
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#if !ENABLE_3C503
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#define el2_probe(dep) (0)
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#endif
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/* Some clones of the dp8390 and the PC emulator 'Bochs' require the CR_STA
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* on writes to the CR register. Additional CR_STAs do not appear to hurt
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* genuine dp8390s
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*/
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#define CR_EXTRA CR_STA
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#if ENABLE_PCI
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static void pci_conf(void);
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#endif
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static void do_vwrite_s(message *mp, int from_int);
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static void do_vread_s(message *mp);
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static void do_init(message *mp);
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static void do_int(dpeth_t *dep);
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static void do_getstat_s(message *mp);
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static void dp_stop(dpeth_t *dep);
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static void dp_init(dpeth_t *dep);
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static void dp_confaddr(dpeth_t *dep);
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static void dp_reinit(dpeth_t *dep);
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static void dp_reset(dpeth_t *dep);
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static void dp_check_ints(dpeth_t *dep);
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static void dp_recv(dpeth_t *dep);
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static void dp_send(dpeth_t *dep);
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static void dp_getblock(dpeth_t *dep, int page, size_t offset, size_t
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size, void *dst);
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static void dp_pio8_getblock(dpeth_t *dep, int page, size_t offset,
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size_t size, void *dst);
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static void dp_pio16_getblock(dpeth_t *dep, int page, size_t offset,
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size_t size, void *dst);
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static int dp_pkt2user_s(dpeth_t *dep, int page, vir_bytes length);
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static void dp_user2nic_s(dpeth_t *dep, iovec_dat_s_t *iovp, vir_bytes
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offset, int nic_addr, vir_bytes count);
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static void dp_pio8_user2nic_s(dpeth_t *dep, iovec_dat_s_t *iovp,
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vir_bytes offset, int nic_addr, vir_bytes count);
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static void dp_pio16_user2nic_s(dpeth_t *dep, iovec_dat_s_t *iovp,
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vir_bytes offset, int nic_addr, vir_bytes count);
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static void dp_nic2user_s(dpeth_t *dep, int nic_addr, iovec_dat_s_t
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*iovp, vir_bytes offset, vir_bytes count);
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static void dp_pio8_nic2user_s(dpeth_t *dep, int nic_addr, iovec_dat_s_t
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*iovp, vir_bytes offset, vir_bytes count);
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static void dp_pio16_nic2user_s(dpeth_t *dep, int nic_addr,
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iovec_dat_s_t *iovp, vir_bytes offset, vir_bytes count);
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static void dp_next_iovec_s(iovec_dat_s_t *iovp);
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static void conf_hw(dpeth_t *dep);
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static void update_conf(dpeth_t *dep, dp_conf_t *dcp);
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static void map_hw_buffer(dpeth_t *dep);
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static int calc_iovec_size_s(iovec_dat_s_t *iovp);
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static void reply(dpeth_t *dep);
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static void mess_reply(message *req, message *reply);
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static void get_userdata_s(int user_proc, cp_grant_id_t grant, vir_bytes
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offset, vir_bytes count, void *loc_addr);
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static void put_userdata_s(int user_proc, cp_grant_id_t grant, size_t
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count, void *loc_addr);
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static void insb(port_t port, void *buf, size_t size);
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static void insw(port_t port, void *buf, size_t size);
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static void do_vir_insb(port_t port, int proc, vir_bytes buf, size_t
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size);
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static void do_vir_insw(port_t port, int proc, vir_bytes buf, size_t
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size);
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/* SEF functions and variables. */
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static void sef_local_startup(void);
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static int sef_cb_init_fresh(int type, sef_init_info_t *info);
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static void sef_cb_signal_handler(int signo);
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static void handle_hw_intr(void)
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{
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int r, irq;
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dpeth_t *dep;
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dep = &de_state;
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if (dep->de_mode != DEM_ENABLED)
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return;
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assert(dep->de_flags & DEF_ENABLED);
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irq= dep->de_irq;
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assert(irq >= 0 && irq < NR_IRQ_VECTORS);
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if (dep->de_int_pending || 1)
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{
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dep->de_int_pending= 0;
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dp_check_ints(dep);
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do_int(dep);
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r= sys_irqenable(&dep->de_hook);
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if (r != OK) {
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panic("unable enable interrupts: %d", r);
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}
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}
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}
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/*===========================================================================*
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* dpeth_task *
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*===========================================================================*/
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int main(int argc, char *argv[])
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{
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message m;
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int ipc_status;
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int r;
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/* SEF local startup. */
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env_setargs(argc, argv);
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sef_local_startup();
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while (TRUE)
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{
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if ((r= netdriver_receive(ANY, &m, &ipc_status)) != OK)
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panic("dp8390: netdriver_receive failed: %d", r);
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if (is_ipc_notify(ipc_status)) {
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switch (_ENDPOINT_P(m.m_source)) {
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case HARDWARE:
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handle_hw_intr();
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break;
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case CLOCK:
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printf("dp8390: notify from CLOCK\n");
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break;
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default:
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panic("dp8390: illegal notify from: %d",
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m.m_source);
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}
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/* done, get a new message */
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continue;
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}
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switch (m.m_type)
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{
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case DL_WRITEV_S: do_vwrite_s(&m, FALSE); break;
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case DL_READV_S: do_vread_s(&m); break;
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case DL_CONF: do_init(&m); break;
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case DL_GETSTAT_S: do_getstat_s(&m); break;
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default:
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panic("dp8390: illegal message: %d", m.m_type);
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}
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}
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}
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/*===========================================================================*
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* sef_local_startup *
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*===========================================================================*/
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static void sef_local_startup()
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{
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/* Register init callbacks. */
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sef_setcb_init_fresh(sef_cb_init_fresh);
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sef_setcb_init_lu(sef_cb_init_fresh);
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sef_setcb_init_restart(sef_cb_init_fresh);
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/* Register live update callbacks. */
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sef_setcb_lu_prepare(sef_cb_lu_prepare_always_ready);
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sef_setcb_lu_state_isvalid(sef_cb_lu_state_isvalid_workfree);
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/* Register signal callbacks. */
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sef_setcb_signal_handler(sef_cb_signal_handler);
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/* Let SEF perform startup. */
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sef_startup();
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}
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/*===========================================================================*
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* sef_cb_init_fresh *
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*===========================================================================*/
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static int sef_cb_init_fresh(int type, sef_init_info_t *UNUSED(info))
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{
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/* Initialize the dp8390 driver. */
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dpeth_t *dep;
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long v;
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system_hz = sys_hz();
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if (env_argc < 1) {
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panic("A head which at this time has no name");
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}
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v = 0;
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(void) env_parse("instance", "d", 0, &v, 0, 255);
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de_instance = (int) v;
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dep = &de_state;
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strlcpy(dep->de_name, "dp8390#0", sizeof(dep->de_name));
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dep->de_name[7] += de_instance;
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/* Announce we are up! */
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netdriver_announce();
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return(OK);
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}
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/*===========================================================================*
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* sef_cb_signal_handler *
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*===========================================================================*/
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static void sef_cb_signal_handler(int signo)
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{
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/* Only check for termination signal, ignore anything else. */
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if (signo != SIGTERM) return;
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if (de_state.de_mode == DEM_ENABLED)
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dp_stop(&de_state);
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}
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#if 0
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/*===========================================================================*
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* dp8390_dump *
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*===========================================================================*/
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void dp8390_dump()
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{
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dpeth_t *dep;
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int isr;
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dep = &de_state;
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printf("\n");
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#if XXX
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if (dep->de_mode == DEM_DISABLED)
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printf("dp8390 instance %d is disabled\n", de_instance);
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else if (dep->de_mode == DEM_SINK)
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printf("dp8390 instance %d is in sink mode\n", de_instance);
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#endif
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if (dep->de_mode != DEM_ENABLED)
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return;
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printf("dp8390 statistics of instance %d:\n", de_instance);
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printf("recvErr :%8ld\t", dep->de_stat.ets_recvErr);
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printf("sendErr :%8ld\t", dep->de_stat.ets_sendErr);
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printf("OVW :%8ld\n", dep->de_stat.ets_OVW);
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printf("CRCerr :%8ld\t", dep->de_stat.ets_CRCerr);
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printf("frameAll :%8ld\t", dep->de_stat.ets_frameAll);
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printf("missedP :%8ld\n", dep->de_stat.ets_missedP);
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printf("packetR :%8ld\t", dep->de_stat.ets_packetR);
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printf("packetT :%8ld\t", dep->de_stat.ets_packetT);
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printf("transDef :%8ld\n", dep->de_stat.ets_transDef);
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printf("collision :%8ld\t", dep->de_stat.ets_collision);
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printf("transAb :%8ld\t", dep->de_stat.ets_transAb);
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printf("carrSense :%8ld\n", dep->de_stat.ets_carrSense);
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printf("fifoUnder :%8ld\t", dep->de_stat.ets_fifoUnder);
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printf("fifoOver :%8ld\t", dep->de_stat.ets_fifoOver);
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printf("CDheartbeat:%8ld\n", dep->de_stat.ets_CDheartbeat);
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printf("OWC :%8ld\t", dep->de_stat.ets_OWC);
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isr= inb_reg0(dep, DP_ISR);
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printf("dp_isr = 0x%x + 0x%x, de_flags = 0x%x\n", isr,
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inb_reg0(dep, DP_ISR), dep->de_flags);
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}
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#endif
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#if ENABLE_PCI
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/*===========================================================================*
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* pci_conf *
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*===========================================================================*/
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static void pci_conf()
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{
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char envvar[16];
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struct dpeth *dep;
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int i, pci_instance;
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static int first_time= 1;
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if (!first_time)
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return;
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first_time= 0;
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dep= &de_state;
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strlcpy(envvar, "DPETH0", sizeof(envvar));
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envvar[5] += de_instance;
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if (!(dep->de_pci= env_prefix(envvar, "pci")))
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return; /* no PCI config */
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/* Count the number of dp instances before this one that are configured
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* for PCI, so that we can skip that many when enumerating PCI devices.
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*/
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pci_instance= 0;
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for (i= 0; i < de_instance; i++) {
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envvar[5]= i;
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if (env_prefix(envvar, "pci"))
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pci_instance++;
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}
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if (!rtl_probe(dep, pci_instance))
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dep->de_pci= -1;
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}
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#endif /* ENABLE_PCI */
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/*===========================================================================*
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* do_vwrite_s *
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*===========================================================================*/
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static void do_vwrite_s(mp, from_int)
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message *mp;
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int from_int;
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{
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int count, size;
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int sendq_head;
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dpeth_t *dep;
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dep= &de_state;
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count = mp->DL_COUNT;
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dep->de_client= mp->m_source;
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if (dep->de_mode == DEM_SINK)
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{
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assert(!from_int);
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dep->de_flags |= DEF_PACK_SEND;
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reply(dep);
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return;
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}
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assert(dep->de_mode == DEM_ENABLED);
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assert(dep->de_flags & DEF_ENABLED);
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if (dep->de_flags & DEF_SEND_AVAIL)
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panic("dp8390: send already in progress");
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sendq_head= dep->de_sendq_head;
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if (dep->de_sendq[sendq_head].sq_filled)
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{
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if (from_int)
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panic("dp8390: should not be sending");
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dep->de_sendmsg= *mp;
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dep->de_flags |= DEF_SEND_AVAIL;
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reply(dep);
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return;
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}
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assert(!(dep->de_flags & DEF_PACK_SEND));
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get_userdata_s(mp->m_source, mp->DL_GRANT, 0,
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(count > IOVEC_NR ? IOVEC_NR : count) *
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sizeof(dep->de_write_iovec_s.iod_iovec[0]),
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dep->de_write_iovec_s.iod_iovec);
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dep->de_write_iovec_s.iod_iovec_s = count;
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dep->de_write_iovec_s.iod_proc_nr = mp->m_source;
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dep->de_write_iovec_s.iod_grant = mp->DL_GRANT;
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dep->de_write_iovec_s.iod_iovec_offset = 0;
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dep->de_tmp_iovec_s = dep->de_write_iovec_s;
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size = calc_iovec_size_s(&dep->de_tmp_iovec_s);
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if (size < ETH_MIN_PACK_SIZE || size > ETH_MAX_PACK_SIZE_TAGGED)
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{
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panic("dp8390: invalid packet size: %d", size);
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}
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(dep->de_user2nicf_s)(dep, &dep->de_write_iovec_s, 0,
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dep->de_sendq[sendq_head].sq_sendpage * DP_PAGESIZE,
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size);
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dep->de_sendq[sendq_head].sq_filled= TRUE;
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if (dep->de_sendq_tail == sendq_head)
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{
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outb_reg0(dep, DP_TPSR, dep->de_sendq[sendq_head].sq_sendpage);
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outb_reg0(dep, DP_TBCR1, size >> 8);
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outb_reg0(dep, DP_TBCR0, size & 0xff);
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outb_reg0(dep, DP_CR, CR_TXP | CR_EXTRA);/* there it goes.. */
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}
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else
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dep->de_sendq[sendq_head].sq_size= size;
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if (++sendq_head == dep->de_sendq_nr)
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sendq_head= 0;
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assert(sendq_head < SENDQ_NR);
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dep->de_sendq_head= sendq_head;
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dep->de_flags |= DEF_PACK_SEND;
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/* If the interrupt handler called, don't send a reply. The reply
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* will be sent after all interrupts are handled.
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*/
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if (from_int)
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return;
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reply(dep);
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assert(dep->de_mode == DEM_ENABLED);
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assert(dep->de_flags & DEF_ENABLED);
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}
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/*===========================================================================*
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* do_vread_s *
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*===========================================================================*/
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static void do_vread_s(mp)
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message *mp;
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{
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int count;
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int size;
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dpeth_t *dep;
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dep= &de_state;
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count = mp->DL_COUNT;
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dep->de_client= mp->m_source;
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if (dep->de_mode == DEM_SINK)
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{
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reply(dep);
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return;
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}
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assert(dep->de_mode == DEM_ENABLED);
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assert(dep->de_flags & DEF_ENABLED);
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if(dep->de_flags & DEF_READING)
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panic("dp8390: read already in progress");
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get_userdata_s(mp->m_source, mp->DL_GRANT, 0,
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(count > IOVEC_NR ? IOVEC_NR : count) *
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sizeof(dep->de_read_iovec_s.iod_iovec[0]),
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dep->de_read_iovec_s.iod_iovec);
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dep->de_read_iovec_s.iod_iovec_s = count;
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dep->de_read_iovec_s.iod_proc_nr = mp->m_source;
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dep->de_read_iovec_s.iod_grant = mp->DL_GRANT;
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dep->de_read_iovec_s.iod_iovec_offset = 0;
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dep->de_tmp_iovec_s = dep->de_read_iovec_s;
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|
size= calc_iovec_size_s(&dep->de_tmp_iovec_s);
|
|
|
|
if (size < ETH_MAX_PACK_SIZE_TAGGED)
|
|
panic("dp8390: wrong packet size: %d", size);
|
|
dep->de_flags |= DEF_READING;
|
|
|
|
dp_recv(dep);
|
|
|
|
if ((dep->de_flags & (DEF_READING|DEF_STOPPED)) ==
|
|
(DEF_READING|DEF_STOPPED))
|
|
{
|
|
/* The chip is stopped, and all arrived packets are
|
|
* delivered.
|
|
*/
|
|
dp_reset(dep);
|
|
}
|
|
reply(dep);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_init *
|
|
*===========================================================================*/
|
|
static void do_init(message *mp)
|
|
{
|
|
dpeth_t *dep;
|
|
message reply_mess;
|
|
|
|
#if ENABLE_PCI
|
|
pci_conf(); /* Configure PCI devices. */
|
|
#endif
|
|
|
|
dep= &de_state;
|
|
|
|
if (dep->de_mode == DEM_DISABLED)
|
|
{
|
|
/* This is the default, try to (re)locate the device. */
|
|
conf_hw(dep);
|
|
if (dep->de_mode == DEM_DISABLED)
|
|
{
|
|
/* Probe failed, or the device is configured off. */
|
|
reply_mess.m_type= DL_CONF_REPLY;
|
|
reply_mess.DL_STAT= ENXIO;
|
|
mess_reply(mp, &reply_mess);
|
|
return;
|
|
}
|
|
if (dep->de_mode == DEM_ENABLED)
|
|
dp_init(dep);
|
|
}
|
|
|
|
if (dep->de_mode == DEM_SINK)
|
|
{
|
|
strncpy((char *) dep->de_address.ea_addr, "ZDP", 6);
|
|
dep->de_address.ea_addr[5] = de_instance;
|
|
dp_confaddr(dep);
|
|
reply_mess.m_type = DL_CONF_REPLY;
|
|
reply_mess.DL_STAT = OK;
|
|
*(ether_addr_t *) reply_mess.DL_HWADDR = dep->de_address;
|
|
mess_reply(mp, &reply_mess);
|
|
return;
|
|
}
|
|
assert(dep->de_mode == DEM_ENABLED);
|
|
assert(dep->de_flags & DEF_ENABLED);
|
|
|
|
dep->de_flags &= ~(DEF_PROMISC | DEF_MULTI | DEF_BROAD);
|
|
|
|
if (mp->DL_MODE & DL_PROMISC_REQ)
|
|
dep->de_flags |= DEF_PROMISC | DEF_MULTI | DEF_BROAD;
|
|
if (mp->DL_MODE & DL_MULTI_REQ)
|
|
dep->de_flags |= DEF_MULTI;
|
|
if (mp->DL_MODE & DL_BROAD_REQ)
|
|
dep->de_flags |= DEF_BROAD;
|
|
|
|
dp_reinit(dep);
|
|
|
|
reply_mess.m_type = DL_CONF_REPLY;
|
|
reply_mess.DL_STAT = OK;
|
|
*(ether_addr_t *) reply_mess.DL_HWADDR = dep->de_address;
|
|
|
|
mess_reply(mp, &reply_mess);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_int *
|
|
*===========================================================================*/
|
|
static void do_int(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
if (dep->de_flags & (DEF_PACK_SEND | DEF_PACK_RECV))
|
|
reply(dep);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_getstat_s *
|
|
*===========================================================================*/
|
|
static void do_getstat_s(mp)
|
|
message *mp;
|
|
{
|
|
int r;
|
|
dpeth_t *dep;
|
|
|
|
dep= &de_state;
|
|
|
|
if (dep->de_mode == DEM_SINK)
|
|
{
|
|
put_userdata_s(mp->m_source, (vir_bytes) mp->DL_GRANT,
|
|
(vir_bytes) sizeof(dep->de_stat), &dep->de_stat);
|
|
|
|
mp->m_type= DL_STAT_REPLY;
|
|
r= send(mp->m_source, mp);
|
|
if (r != OK)
|
|
panic("do_getstat: send failed: %d", r);
|
|
return;
|
|
}
|
|
assert(dep->de_mode == DEM_ENABLED);
|
|
assert(dep->de_flags & DEF_ENABLED);
|
|
|
|
dep->de_stat.ets_CRCerr += inb_reg0(dep, DP_CNTR0);
|
|
dep->de_stat.ets_frameAll += inb_reg0(dep, DP_CNTR1);
|
|
dep->de_stat.ets_missedP += inb_reg0(dep, DP_CNTR2);
|
|
|
|
put_userdata_s(mp->m_source, mp->DL_GRANT,
|
|
sizeof(dep->de_stat), &dep->de_stat);
|
|
|
|
mp->m_type= DL_STAT_REPLY;
|
|
r= send(mp->m_source, mp);
|
|
if (r != OK)
|
|
panic("do_getstat: send failed: %d", r);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_stop *
|
|
*===========================================================================*/
|
|
static void dp_stop(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
|
|
if (dep->de_mode == DEM_SINK)
|
|
return;
|
|
assert(dep->de_mode == DEM_ENABLED);
|
|
|
|
if (!(dep->de_flags & DEF_ENABLED))
|
|
return;
|
|
|
|
outb_reg0(dep, DP_CR, CR_STP | CR_DM_ABORT);
|
|
(dep->de_stopf)(dep);
|
|
|
|
dep->de_flags= DEF_EMPTY;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_init *
|
|
*===========================================================================*/
|
|
static void dp_init(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
int dp_rcr_reg;
|
|
int i, r;
|
|
|
|
/* General initialization */
|
|
dep->de_flags = DEF_EMPTY;
|
|
(*dep->de_initf)(dep);
|
|
|
|
dp_confaddr(dep);
|
|
|
|
if (debug)
|
|
{
|
|
printf("%s: Ethernet address ", dep->de_name);
|
|
for (i= 0; i < 6; i++)
|
|
printf("%x%c", dep->de_address.ea_addr[i],
|
|
i < 5 ? ':' : '\n');
|
|
}
|
|
|
|
/* Map buffer */
|
|
map_hw_buffer(dep);
|
|
|
|
/* Initialization of the dp8390 following the mandatory procedure
|
|
* in reference manual ("DP8390D/NS32490D NIC Network Interface
|
|
* Controller", National Semiconductor, July 1995, Page 29).
|
|
*/
|
|
/* Step 1: */
|
|
outb_reg0(dep, DP_CR, CR_PS_P0 | CR_STP | CR_DM_ABORT);
|
|
/* Step 2: */
|
|
if (dep->de_16bit)
|
|
outb_reg0(dep, DP_DCR, DCR_WORDWIDE | DCR_8BYTES | DCR_BMS);
|
|
else
|
|
outb_reg0(dep, DP_DCR, DCR_BYTEWIDE | DCR_8BYTES | DCR_BMS);
|
|
/* Step 3: */
|
|
outb_reg0(dep, DP_RBCR0, 0);
|
|
outb_reg0(dep, DP_RBCR1, 0);
|
|
/* Step 4: */
|
|
dp_rcr_reg = 0;
|
|
if (dep->de_flags & DEF_PROMISC)
|
|
dp_rcr_reg |= RCR_AB | RCR_PRO | RCR_AM;
|
|
if (dep->de_flags & DEF_BROAD)
|
|
dp_rcr_reg |= RCR_AB;
|
|
if (dep->de_flags & DEF_MULTI)
|
|
dp_rcr_reg |= RCR_AM;
|
|
outb_reg0(dep, DP_RCR, dp_rcr_reg);
|
|
/* Step 5: */
|
|
outb_reg0(dep, DP_TCR, TCR_INTERNAL);
|
|
/* Step 6: */
|
|
outb_reg0(dep, DP_BNRY, dep->de_startpage);
|
|
outb_reg0(dep, DP_PSTART, dep->de_startpage);
|
|
outb_reg0(dep, DP_PSTOP, dep->de_stoppage);
|
|
/* Step 7: */
|
|
outb_reg0(dep, DP_ISR, 0xFF);
|
|
/* Step 8: */
|
|
outb_reg0(dep, DP_IMR, IMR_PRXE | IMR_PTXE | IMR_RXEE | IMR_TXEE |
|
|
IMR_OVWE | IMR_CNTE);
|
|
/* Step 9: */
|
|
outb_reg0(dep, DP_CR, CR_PS_P1 | CR_DM_ABORT | CR_STP);
|
|
|
|
outb_reg1(dep, DP_PAR0, dep->de_address.ea_addr[0]);
|
|
outb_reg1(dep, DP_PAR1, dep->de_address.ea_addr[1]);
|
|
outb_reg1(dep, DP_PAR2, dep->de_address.ea_addr[2]);
|
|
outb_reg1(dep, DP_PAR3, dep->de_address.ea_addr[3]);
|
|
outb_reg1(dep, DP_PAR4, dep->de_address.ea_addr[4]);
|
|
outb_reg1(dep, DP_PAR5, dep->de_address.ea_addr[5]);
|
|
|
|
outb_reg1(dep, DP_MAR0, 0xff);
|
|
outb_reg1(dep, DP_MAR1, 0xff);
|
|
outb_reg1(dep, DP_MAR2, 0xff);
|
|
outb_reg1(dep, DP_MAR3, 0xff);
|
|
outb_reg1(dep, DP_MAR4, 0xff);
|
|
outb_reg1(dep, DP_MAR5, 0xff);
|
|
outb_reg1(dep, DP_MAR6, 0xff);
|
|
outb_reg1(dep, DP_MAR7, 0xff);
|
|
|
|
outb_reg1(dep, DP_CURR, dep->de_startpage + 1);
|
|
/* Step 10: */
|
|
outb_reg0(dep, DP_CR, CR_DM_ABORT | CR_STA);
|
|
/* Step 11: */
|
|
outb_reg0(dep, DP_TCR, TCR_NORMAL);
|
|
|
|
inb_reg0(dep, DP_CNTR0); /* reset counters by reading */
|
|
inb_reg0(dep, DP_CNTR1);
|
|
inb_reg0(dep, DP_CNTR2);
|
|
|
|
/* Finish the initialization. */
|
|
dep->de_flags |= DEF_ENABLED;
|
|
for (i= 0; i<dep->de_sendq_nr; i++)
|
|
dep->de_sendq[i].sq_filled= 0;
|
|
dep->de_sendq_head= 0;
|
|
dep->de_sendq_tail= 0;
|
|
if (!dep->de_prog_IO)
|
|
{
|
|
dep->de_user2nicf_s= dp_user2nic_s;
|
|
dep->de_nic2userf_s= dp_nic2user_s;
|
|
dep->de_getblockf= dp_getblock;
|
|
}
|
|
else if (dep->de_16bit)
|
|
{
|
|
dep->de_user2nicf_s= dp_pio16_user2nic_s;
|
|
dep->de_nic2userf_s= dp_pio16_nic2user_s;
|
|
dep->de_getblockf= dp_pio16_getblock;
|
|
}
|
|
else
|
|
{
|
|
dep->de_user2nicf_s= dp_pio8_user2nic_s;
|
|
dep->de_nic2userf_s= dp_pio8_nic2user_s;
|
|
dep->de_getblockf= dp_pio8_getblock;
|
|
}
|
|
|
|
/* Set the interrupt handler and policy. Do not automatically
|
|
* reenable interrupts. Return the IRQ line number on interrupts.
|
|
*/
|
|
dep->de_hook = dep->de_irq;
|
|
r= sys_irqsetpolicy(dep->de_irq, 0, &dep->de_hook);
|
|
if (r != OK)
|
|
panic("sys_irqsetpolicy failed: %d", r);
|
|
|
|
r= sys_irqenable(&dep->de_hook);
|
|
if (r != OK)
|
|
{
|
|
panic("unable enable interrupts: %d", r);
|
|
}
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_confaddr *
|
|
*===========================================================================*/
|
|
static void dp_confaddr(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
int i;
|
|
char eakey[16];
|
|
static char eafmt[]= "x:x:x:x:x:x";
|
|
long v;
|
|
|
|
/* User defined ethernet address? */
|
|
strlcpy(eakey, "DPETH0_EA", sizeof(eakey));
|
|
eakey[5] += de_instance;
|
|
|
|
for (i= 0; i < 6; i++)
|
|
{
|
|
v= dep->de_address.ea_addr[i];
|
|
if (env_parse(eakey, eafmt, i, &v, 0x00L, 0xFFL) != EP_SET)
|
|
{
|
|
break;
|
|
}
|
|
dep->de_address.ea_addr[i]= v;
|
|
}
|
|
|
|
if (i != 0 && i != 6) env_panic(eakey); /* It's all or nothing */
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_reinit *
|
|
*===========================================================================*/
|
|
static void dp_reinit(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
int dp_rcr_reg;
|
|
|
|
outb_reg0(dep, DP_CR, CR_PS_P0 | CR_EXTRA);
|
|
|
|
dp_rcr_reg = 0;
|
|
if (dep->de_flags & DEF_PROMISC)
|
|
dp_rcr_reg |= RCR_AB | RCR_PRO | RCR_AM;
|
|
if (dep->de_flags & DEF_BROAD)
|
|
dp_rcr_reg |= RCR_AB;
|
|
if (dep->de_flags & DEF_MULTI)
|
|
dp_rcr_reg |= RCR_AM;
|
|
outb_reg0(dep, DP_RCR, dp_rcr_reg);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_reset *
|
|
*===========================================================================*/
|
|
static void dp_reset(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
int i;
|
|
|
|
/* Stop chip */
|
|
outb_reg0(dep, DP_CR, CR_STP | CR_DM_ABORT);
|
|
outb_reg0(dep, DP_RBCR0, 0);
|
|
outb_reg0(dep, DP_RBCR1, 0);
|
|
for (i= 0; i < 0x1000 && ((inb_reg0(dep, DP_ISR) & ISR_RST) == 0); i++)
|
|
; /* Do nothing */
|
|
outb_reg0(dep, DP_TCR, TCR_1EXTERNAL|TCR_OFST);
|
|
outb_reg0(dep, DP_CR, CR_STA|CR_DM_ABORT);
|
|
outb_reg0(dep, DP_TCR, TCR_NORMAL);
|
|
|
|
/* Acknowledge the ISR_RDC (remote dma) interrupt. */
|
|
for (i= 0; i < 0x1000 && ((inb_reg0(dep, DP_ISR) & ISR_RDC) == 0); i++)
|
|
; /* Do nothing */
|
|
outb_reg0(dep, DP_ISR, inb_reg0(dep, DP_ISR) & ~ISR_RDC);
|
|
|
|
/* Reset the transmit ring. If we were transmitting a packet, we
|
|
* pretend that the packet is processed. Higher layers will
|
|
* retransmit if the packet wasn't actually sent.
|
|
*/
|
|
dep->de_sendq_head= dep->de_sendq_tail= 0;
|
|
for (i= 0; i<dep->de_sendq_nr; i++)
|
|
dep->de_sendq[i].sq_filled= 0;
|
|
dp_send(dep);
|
|
dep->de_flags &= ~DEF_STOPPED;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_check_ints *
|
|
*===========================================================================*/
|
|
static void dp_check_ints(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
int isr, tsr;
|
|
int size, sendq_tail;
|
|
|
|
if (!(dep->de_flags & DEF_ENABLED))
|
|
panic("dp8390: got premature interrupt");
|
|
|
|
for(;;)
|
|
{
|
|
isr = inb_reg0(dep, DP_ISR);
|
|
if (!isr)
|
|
break;
|
|
outb_reg0(dep, DP_ISR, isr);
|
|
if (isr & (ISR_PTX|ISR_TXE))
|
|
{
|
|
if (isr & ISR_TXE)
|
|
{
|
|
#if DEBUG
|
|
{ printf("%s: got send Error\n", dep->de_name); }
|
|
#endif
|
|
dep->de_stat.ets_sendErr++;
|
|
}
|
|
else
|
|
{
|
|
tsr = inb_reg0(dep, DP_TSR);
|
|
|
|
if (tsr & TSR_PTX) dep->de_stat.ets_packetT++;
|
|
#if 0 /* Reserved in later manuals, should be ignored */
|
|
if (!(tsr & TSR_DFR))
|
|
{
|
|
/* In most (all?) implementations of
|
|
* the dp8390, this bit is set
|
|
* when the packet is not deferred
|
|
*/
|
|
dep->de_stat.ets_transDef++;
|
|
}
|
|
#endif
|
|
if (tsr & TSR_COL) dep->de_stat.ets_collision++;
|
|
if (tsr & TSR_ABT) dep->de_stat.ets_transAb++;
|
|
if (tsr & TSR_CRS) dep->de_stat.ets_carrSense++;
|
|
if (tsr & TSR_FU
|
|
&& ++dep->de_stat.ets_fifoUnder <= 10)
|
|
{
|
|
printf("%s: fifo underrun\n",
|
|
dep->de_name);
|
|
}
|
|
if (tsr & TSR_CDH
|
|
&& ++dep->de_stat.ets_CDheartbeat <= 10)
|
|
{
|
|
printf("%s: CD heart beat failure\n",
|
|
dep->de_name);
|
|
}
|
|
if (tsr & TSR_OWC) dep->de_stat.ets_OWC++;
|
|
}
|
|
sendq_tail= dep->de_sendq_tail;
|
|
|
|
if (!(dep->de_sendq[sendq_tail].sq_filled))
|
|
{
|
|
/* Software bug? */
|
|
assert(!debug);
|
|
|
|
/* Or hardware bug? */
|
|
printf(
|
|
"%s: transmit interrupt, but not sending\n",
|
|
dep->de_name);
|
|
continue;
|
|
}
|
|
dep->de_sendq[sendq_tail].sq_filled= 0;
|
|
if (++sendq_tail == dep->de_sendq_nr)
|
|
sendq_tail= 0;
|
|
dep->de_sendq_tail= sendq_tail;
|
|
if (dep->de_sendq[sendq_tail].sq_filled)
|
|
{
|
|
size= dep->de_sendq[sendq_tail].sq_size;
|
|
outb_reg0(dep, DP_TPSR,
|
|
dep->de_sendq[sendq_tail].sq_sendpage);
|
|
outb_reg0(dep, DP_TBCR1, size >> 8);
|
|
outb_reg0(dep, DP_TBCR0, size & 0xff);
|
|
outb_reg0(dep, DP_CR, CR_TXP | CR_EXTRA);
|
|
}
|
|
if (dep->de_flags & DEF_SEND_AVAIL)
|
|
dp_send(dep);
|
|
}
|
|
|
|
if (isr & ISR_PRX)
|
|
{
|
|
/* Only call dp_recv if there is a read request */
|
|
if (dep->de_flags & DEF_READING)
|
|
dp_recv(dep);
|
|
}
|
|
|
|
if (isr & ISR_RXE) dep->de_stat.ets_recvErr++;
|
|
if (isr & ISR_CNT)
|
|
{
|
|
dep->de_stat.ets_CRCerr += inb_reg0(dep, DP_CNTR0);
|
|
dep->de_stat.ets_frameAll += inb_reg0(dep, DP_CNTR1);
|
|
dep->de_stat.ets_missedP += inb_reg0(dep, DP_CNTR2);
|
|
}
|
|
if (isr & ISR_OVW)
|
|
{
|
|
dep->de_stat.ets_OVW++;
|
|
#if 0
|
|
{ printW(); printf(
|
|
"%s: got overwrite warning\n", dep->de_name); }
|
|
#endif
|
|
if (dep->de_flags & DEF_READING)
|
|
{
|
|
printf(
|
|
"dp_check_ints: strange: overwrite warning and pending read request\n");
|
|
dp_recv(dep);
|
|
}
|
|
}
|
|
if (isr & ISR_RDC)
|
|
{
|
|
/* Nothing to do */
|
|
}
|
|
if (isr & ISR_RST)
|
|
{
|
|
/* this means we got an interrupt but the ethernet
|
|
* chip is shutdown. We set the flag DEF_STOPPED,
|
|
* and continue processing arrived packets. When the
|
|
* receive buffer is empty, we reset the dp8390.
|
|
*/
|
|
#if 0
|
|
{ printW(); printf(
|
|
"%s: NIC stopped\n", dep->de_name); }
|
|
#endif
|
|
dep->de_flags |= DEF_STOPPED;
|
|
break;
|
|
}
|
|
}
|
|
if ((dep->de_flags & (DEF_READING|DEF_STOPPED)) ==
|
|
(DEF_READING|DEF_STOPPED))
|
|
{
|
|
/* The chip is stopped, and all arrived packets are
|
|
* delivered.
|
|
*/
|
|
dp_reset(dep);
|
|
}
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_recv *
|
|
*===========================================================================*/
|
|
static void dp_recv(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
dp_rcvhdr_t header;
|
|
unsigned pageno, curr, next;
|
|
vir_bytes length;
|
|
int packet_processed, r;
|
|
u16_t eth_type;
|
|
|
|
packet_processed = FALSE;
|
|
pageno = inb_reg0(dep, DP_BNRY) + 1;
|
|
if (pageno == dep->de_stoppage) pageno = dep->de_startpage;
|
|
|
|
do
|
|
{
|
|
outb_reg0(dep, DP_CR, CR_PS_P1 | CR_EXTRA);
|
|
curr = inb_reg1(dep, DP_CURR);
|
|
outb_reg0(dep, DP_CR, CR_PS_P0 | CR_EXTRA);
|
|
|
|
if (curr == pageno) break;
|
|
|
|
(dep->de_getblockf)(dep, pageno, (size_t)0, sizeof(header),
|
|
&header);
|
|
(dep->de_getblockf)(dep, pageno, sizeof(header) +
|
|
2*sizeof(ether_addr_t), sizeof(eth_type), ð_type);
|
|
|
|
length = (header.dr_rbcl | (header.dr_rbch << 8)) -
|
|
sizeof(dp_rcvhdr_t);
|
|
next = header.dr_next;
|
|
if (length < ETH_MIN_PACK_SIZE ||
|
|
length > ETH_MAX_PACK_SIZE_TAGGED)
|
|
{
|
|
printf("%s: packet with strange length arrived: %d\n",
|
|
dep->de_name, (int) length);
|
|
next= curr;
|
|
}
|
|
else if (next < dep->de_startpage || next >= dep->de_stoppage)
|
|
{
|
|
printf("%s: strange next page\n", dep->de_name);
|
|
next= curr;
|
|
}
|
|
else if (header.dr_status & RSR_FO)
|
|
{
|
|
/* This is very serious, so we issue a warning and
|
|
* reset the buffers */
|
|
printf("%s: fifo overrun, resetting receive buffer\n",
|
|
dep->de_name);
|
|
dep->de_stat.ets_fifoOver++;
|
|
next = curr;
|
|
}
|
|
else if ((header.dr_status & RSR_PRX) &&
|
|
(dep->de_flags & DEF_ENABLED))
|
|
{
|
|
r = dp_pkt2user_s(dep, pageno, length);
|
|
if (r != OK)
|
|
return;
|
|
|
|
packet_processed = TRUE;
|
|
dep->de_stat.ets_packetR++;
|
|
}
|
|
if (next == dep->de_startpage)
|
|
outb_reg0(dep, DP_BNRY, dep->de_stoppage - 1);
|
|
else
|
|
outb_reg0(dep, DP_BNRY, next - 1);
|
|
|
|
pageno = next;
|
|
}
|
|
while (!packet_processed);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_send *
|
|
*===========================================================================*/
|
|
static void dp_send(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
if (!(dep->de_flags & DEF_SEND_AVAIL))
|
|
return;
|
|
|
|
dep->de_flags &= ~DEF_SEND_AVAIL;
|
|
do_vwrite_s(&dep->de_sendmsg, TRUE);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_getblock *
|
|
*===========================================================================*/
|
|
static void dp_getblock(dep, page, offset, size, dst)
|
|
dpeth_t *dep;
|
|
int page;
|
|
size_t offset;
|
|
size_t size;
|
|
void *dst;
|
|
{
|
|
offset = page * DP_PAGESIZE + offset;
|
|
|
|
memcpy(dst, dep->de_locmem + offset, size);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio8_getblock *
|
|
*===========================================================================*/
|
|
static void dp_pio8_getblock(dep, page, offset, size, dst)
|
|
dpeth_t *dep;
|
|
int page;
|
|
size_t offset;
|
|
size_t size;
|
|
void *dst;
|
|
{
|
|
offset = page * DP_PAGESIZE + offset;
|
|
outb_reg0(dep, DP_RBCR0, size & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, size >> 8);
|
|
outb_reg0(dep, DP_RSAR0, offset & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, offset >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
|
|
|
|
insb(dep->de_data_port, dst, size);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio16_getblock *
|
|
*===========================================================================*/
|
|
static void dp_pio16_getblock(dep, page, offset, size, dst)
|
|
dpeth_t *dep;
|
|
int page;
|
|
size_t offset;
|
|
size_t size;
|
|
void *dst;
|
|
{
|
|
offset = page * DP_PAGESIZE + offset;
|
|
outb_reg0(dep, DP_RBCR0, size & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, size >> 8);
|
|
outb_reg0(dep, DP_RSAR0, offset & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, offset >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
|
|
|
|
assert (!(size & 1));
|
|
insw(dep->de_data_port, dst, size);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pkt2user_s *
|
|
*===========================================================================*/
|
|
static int dp_pkt2user_s(dpeth_t *dep, int page, vir_bytes length)
|
|
{
|
|
int last, count;
|
|
|
|
if (!(dep->de_flags & DEF_READING))
|
|
return EGENERIC;
|
|
|
|
last = page + (length - 1) / DP_PAGESIZE;
|
|
if (last >= dep->de_stoppage)
|
|
{
|
|
count = (dep->de_stoppage - page) * DP_PAGESIZE -
|
|
sizeof(dp_rcvhdr_t);
|
|
|
|
/* Save read_iovec since we need it twice. */
|
|
dep->de_tmp_iovec_s = dep->de_read_iovec_s;
|
|
(dep->de_nic2userf_s)(dep, page * DP_PAGESIZE +
|
|
sizeof(dp_rcvhdr_t), &dep->de_tmp_iovec_s, 0, count);
|
|
(dep->de_nic2userf_s)(dep, dep->de_startpage * DP_PAGESIZE,
|
|
&dep->de_read_iovec_s, count, length - count);
|
|
}
|
|
else
|
|
{
|
|
(dep->de_nic2userf_s)(dep, page * DP_PAGESIZE +
|
|
sizeof(dp_rcvhdr_t), &dep->de_read_iovec_s, 0, length);
|
|
}
|
|
|
|
dep->de_read_s = length;
|
|
dep->de_flags |= DEF_PACK_RECV;
|
|
dep->de_flags &= ~DEF_READING;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_user2nic_s *
|
|
*===========================================================================*/
|
|
static void dp_user2nic_s(dep, iovp, offset, nic_addr, count)
|
|
dpeth_t *dep;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
int nic_addr;
|
|
vir_bytes count;
|
|
{
|
|
vir_bytes vir_hw;
|
|
int bytes, i, r;
|
|
|
|
vir_hw = (vir_bytes)dep->de_locmem + nic_addr;
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
r= sys_safecopyfrom(iovp->iod_proc_nr,
|
|
iovp->iod_iovec[i].iov_grant, offset,
|
|
vir_hw, bytes);
|
|
if (r != OK) {
|
|
panic("dp_user2nic_s: sys_safecopyfrom failed: %d", r);
|
|
}
|
|
|
|
count -= bytes;
|
|
vir_hw += bytes;
|
|
offset += bytes;
|
|
}
|
|
assert(count == 0);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio8_user2nic_s *
|
|
*===========================================================================*/
|
|
static void dp_pio8_user2nic_s(dep, iovp, offset, nic_addr, count)
|
|
dpeth_t *dep;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
int nic_addr;
|
|
vir_bytes count;
|
|
{
|
|
int bytes, i, r;
|
|
|
|
outb_reg0(dep, DP_ISR, ISR_RDC);
|
|
|
|
outb_reg0(dep, DP_RBCR0, count & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, count >> 8);
|
|
outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RW | CR_PS_P0 | CR_STA);
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
r= sys_safe_outsb(dep->de_data_port, iovp->iod_proc_nr,
|
|
iovp->iod_iovec[i].iov_grant, offset, bytes);
|
|
if (r != OK) {
|
|
panic("dp_pio8_user2nic_s: sys_safe_outsb failed: %d",
|
|
r);
|
|
}
|
|
count -= bytes;
|
|
offset += bytes;
|
|
}
|
|
assert(count == 0);
|
|
|
|
for (i= 0; i<100; i++)
|
|
{
|
|
if (inb_reg0(dep, DP_ISR) & ISR_RDC)
|
|
break;
|
|
}
|
|
if (i == 100)
|
|
{
|
|
panic("dp8390: remote dma failed to complete");
|
|
}
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio16_user2nic_s *
|
|
*===========================================================================*/
|
|
static void dp_pio16_user2nic_s(dep, iovp, offset, nic_addr, count)
|
|
dpeth_t *dep;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
int nic_addr;
|
|
vir_bytes count;
|
|
{
|
|
vir_bytes ecount;
|
|
cp_grant_id_t gid;
|
|
int i, r, bytes, user_proc;
|
|
u8_t two_bytes[2];
|
|
int odd_byte;
|
|
|
|
ecount= (count+1) & ~1;
|
|
odd_byte= 0;
|
|
|
|
outb_reg0(dep, DP_ISR, ISR_RDC);
|
|
outb_reg0(dep, DP_RBCR0, ecount & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, ecount >> 8);
|
|
outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RW | CR_PS_P0 | CR_STA);
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
user_proc= iovp->iod_proc_nr;
|
|
gid= iovp->iod_iovec[i].iov_grant;
|
|
if (odd_byte)
|
|
{
|
|
r= sys_safecopyfrom(user_proc, gid, offset,
|
|
(vir_bytes)&two_bytes[1], 1);
|
|
if (r != OK) {
|
|
panic("dp_pio16_user2nic: sys_safecopyfrom failed: %d", r);
|
|
}
|
|
outw(dep->de_data_port, *(u16_t *)two_bytes);
|
|
count--;
|
|
offset++;
|
|
bytes--;
|
|
odd_byte= 0;
|
|
if (!bytes)
|
|
continue;
|
|
}
|
|
ecount= bytes & ~1;
|
|
if (ecount != 0)
|
|
{
|
|
r= sys_safe_outsw(dep->de_data_port, user_proc,
|
|
gid, offset, ecount);
|
|
if (r != OK) {
|
|
panic("dp_pio16_user2nic: sys_safe_outsw failed: %d", r);
|
|
}
|
|
count -= ecount;
|
|
offset += ecount;
|
|
bytes -= ecount;
|
|
}
|
|
if (bytes)
|
|
{
|
|
assert(bytes == 1);
|
|
r= sys_safecopyfrom(user_proc, gid, offset,
|
|
(vir_bytes)&two_bytes[0], 1);
|
|
if (r != OK) {
|
|
panic("dp_pio16_user2nic: sys_safecopyfrom failed: %d", r);
|
|
}
|
|
count--;
|
|
offset++;
|
|
bytes--;
|
|
odd_byte= 1;
|
|
}
|
|
}
|
|
assert(count == 0);
|
|
|
|
if (odd_byte)
|
|
outw(dep->de_data_port, *(u16_t *)two_bytes);
|
|
|
|
for (i= 0; i<100; i++)
|
|
{
|
|
if (inb_reg0(dep, DP_ISR) & ISR_RDC)
|
|
break;
|
|
}
|
|
if (i == 100)
|
|
{
|
|
panic("dp8390: remote dma failed to complete");
|
|
}
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_nic2user_s *
|
|
*===========================================================================*/
|
|
static void dp_nic2user_s(dep, nic_addr, iovp, offset, count)
|
|
dpeth_t *dep;
|
|
int nic_addr;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
vir_bytes count;
|
|
{
|
|
vir_bytes vir_hw;
|
|
int bytes, i, r;
|
|
|
|
vir_hw = (vir_bytes)dep->de_locmem + nic_addr;
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
r= sys_safecopyto(iovp->iod_proc_nr,
|
|
iovp->iod_iovec[i].iov_grant, offset,
|
|
vir_hw, bytes);
|
|
if (r != OK)
|
|
panic("dp_nic2user_s: sys_safecopyto failed: %d", r);
|
|
|
|
count -= bytes;
|
|
vir_hw += bytes;
|
|
offset += bytes;
|
|
}
|
|
assert(count == 0);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio8_nic2user_s *
|
|
*===========================================================================*/
|
|
static void dp_pio8_nic2user_s(dep, nic_addr, iovp, offset, count)
|
|
dpeth_t *dep;
|
|
int nic_addr;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
vir_bytes count;
|
|
{
|
|
int bytes, i, r;
|
|
|
|
outb_reg0(dep, DP_RBCR0, count & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, count >> 8);
|
|
outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
r= sys_safe_insb(dep->de_data_port, iovp->iod_proc_nr,
|
|
iovp->iod_iovec[i].iov_grant, offset, bytes);
|
|
if (r != OK) {
|
|
panic("dp_pio8_nic2user_s: sys_safe_insb failed: %d", r);
|
|
}
|
|
count -= bytes;
|
|
offset += bytes;
|
|
}
|
|
assert(count == 0);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_pio16_nic2user_s *
|
|
*===========================================================================*/
|
|
static void dp_pio16_nic2user_s(dep, nic_addr, iovp, offset, count)
|
|
dpeth_t *dep;
|
|
int nic_addr;
|
|
iovec_dat_s_t *iovp;
|
|
vir_bytes offset;
|
|
vir_bytes count;
|
|
{
|
|
vir_bytes ecount;
|
|
cp_grant_id_t gid;
|
|
int i, r, bytes, user_proc;
|
|
u8_t two_bytes[2];
|
|
int odd_byte;
|
|
|
|
ecount= (count+1) & ~1;
|
|
odd_byte= 0;
|
|
|
|
outb_reg0(dep, DP_RBCR0, ecount & 0xFF);
|
|
outb_reg0(dep, DP_RBCR1, ecount >> 8);
|
|
outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
|
|
outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
|
|
outb_reg0(dep, DP_CR, CR_DM_RR | CR_PS_P0 | CR_STA);
|
|
|
|
i= 0;
|
|
while (count > 0)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
assert(i < iovp->iod_iovec_s);
|
|
if (offset >= iovp->iod_iovec[i].iov_size)
|
|
{
|
|
offset -= iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
continue;
|
|
}
|
|
bytes = iovp->iod_iovec[i].iov_size - offset;
|
|
if (bytes > count)
|
|
bytes = count;
|
|
|
|
user_proc= iovp->iod_proc_nr;
|
|
gid= iovp->iod_iovec[i].iov_grant;
|
|
if (odd_byte)
|
|
{
|
|
r= sys_safecopyto(user_proc, gid, offset,
|
|
(vir_bytes)&two_bytes[1], 1);
|
|
if (r != OK) {
|
|
panic("dp_pio16_nic2user: sys_safecopyto failed: %d", r);
|
|
}
|
|
count--;
|
|
offset++;
|
|
bytes--;
|
|
odd_byte= 0;
|
|
if (!bytes)
|
|
continue;
|
|
}
|
|
ecount= bytes & ~1;
|
|
if (ecount != 0)
|
|
{
|
|
r= sys_safe_insw(dep->de_data_port, user_proc, gid,
|
|
offset, ecount);
|
|
if (r != OK) {
|
|
panic("dp_pio16_nic2user: sys_safe_insw failed: %d",
|
|
r);
|
|
}
|
|
count -= ecount;
|
|
offset += ecount;
|
|
bytes -= ecount;
|
|
}
|
|
if (bytes)
|
|
{
|
|
assert(bytes == 1);
|
|
*(u16_t *)two_bytes= inw(dep->de_data_port);
|
|
r= sys_safecopyto(user_proc, gid, offset,
|
|
(vir_bytes)&two_bytes[0], 1);
|
|
if (r != OK)
|
|
{
|
|
panic("dp_pio16_nic2user: sys_safecopyto failed: %d",
|
|
r);
|
|
}
|
|
count--;
|
|
offset++;
|
|
bytes--;
|
|
odd_byte= 1;
|
|
}
|
|
}
|
|
assert(count == 0);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* dp_next_iovec_s *
|
|
*===========================================================================*/
|
|
static void dp_next_iovec_s(iovp)
|
|
iovec_dat_s_t *iovp;
|
|
{
|
|
assert(iovp->iod_iovec_s > IOVEC_NR);
|
|
|
|
iovp->iod_iovec_s -= IOVEC_NR;
|
|
|
|
iovp->iod_iovec_offset += IOVEC_NR * sizeof(iovec_t);
|
|
|
|
get_userdata_s(iovp->iod_proc_nr, iovp->iod_grant,
|
|
iovp->iod_iovec_offset,
|
|
(iovp->iod_iovec_s > IOVEC_NR ? IOVEC_NR : iovp->iod_iovec_s) *
|
|
sizeof(iovp->iod_iovec[0]), iovp->iod_iovec);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* conf_hw *
|
|
*===========================================================================*/
|
|
static void conf_hw(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
static eth_stat_t empty_stat = {0, 0, 0, 0, 0, 0 /* ,... */ };
|
|
|
|
int confnr;
|
|
dp_conf_t *dcp;
|
|
|
|
dep->de_mode= DEM_DISABLED; /* Superfluous */
|
|
|
|
/* Pick a default configuration for this instance. */
|
|
confnr= MIN(de_instance, DP_CONF_NR-1);
|
|
|
|
dcp= &dp_conf[confnr];
|
|
update_conf(dep, dcp);
|
|
if (dep->de_mode != DEM_ENABLED)
|
|
return;
|
|
if (!wdeth_probe(dep) && !ne_probe(dep) && !el2_probe(dep))
|
|
{
|
|
printf("%s: No ethernet card found at 0x%x\n",
|
|
dep->de_name, dep->de_base_port);
|
|
dep->de_mode= DEM_DISABLED;
|
|
return;
|
|
}
|
|
|
|
/* XXX */ if (dep->de_linmem == 0) dep->de_linmem= 0xFFFF0000;
|
|
|
|
dep->de_flags = DEF_EMPTY;
|
|
dep->de_stat = empty_stat;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* update_conf *
|
|
*===========================================================================*/
|
|
static void update_conf(dep, dcp)
|
|
dpeth_t *dep;
|
|
dp_conf_t *dcp;
|
|
{
|
|
long v;
|
|
static char dpc_fmt[] = "x:d:x:x";
|
|
char eckey[16];
|
|
|
|
#if ENABLE_PCI
|
|
if (dep->de_pci)
|
|
{
|
|
if (dep->de_pci == 1)
|
|
{
|
|
/* PCI device is present */
|
|
dep->de_mode= DEM_ENABLED;
|
|
}
|
|
return; /* Already configured */
|
|
}
|
|
#endif
|
|
|
|
strlcpy(eckey, "DPETH0", sizeof(eckey));
|
|
eckey[5] += de_instance;
|
|
|
|
/* Get the default settings and modify them from the environment. */
|
|
dep->de_mode= DEM_SINK;
|
|
v= dcp->dpc_port;
|
|
switch (env_parse(eckey, dpc_fmt, 0, &v, 0x0000L, 0xFFFFL)) {
|
|
case EP_OFF:
|
|
dep->de_mode= DEM_DISABLED;
|
|
break;
|
|
case EP_ON:
|
|
case EP_SET:
|
|
dep->de_mode= DEM_ENABLED; /* Might become disabled if
|
|
* all probes fail */
|
|
break;
|
|
}
|
|
dep->de_base_port= v;
|
|
|
|
v= dcp->dpc_irq | DEI_DEFAULT;
|
|
(void) env_parse(eckey, dpc_fmt, 1, &v, 0L, (long) NR_IRQ_VECTORS - 1);
|
|
dep->de_irq= v;
|
|
|
|
v= dcp->dpc_mem;
|
|
(void) env_parse(eckey, dpc_fmt, 2, &v, 0L, 0xFFFFFL);
|
|
dep->de_linmem= v;
|
|
|
|
v= 0;
|
|
(void) env_parse(eckey, dpc_fmt, 3, &v, 0x2000L, 0x8000L);
|
|
dep->de_ramsize= v;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* map_hw_buffer *
|
|
*===========================================================================*/
|
|
static void map_hw_buffer(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
|
|
if (dep->de_prog_IO)
|
|
{
|
|
#if 0
|
|
printf(
|
|
"map_hw_buffer: programmed I/O, no need to map buffer\n");
|
|
#endif
|
|
dep->de_locmem = (char *)-dep->de_ramsize; /* trap errors */
|
|
return;
|
|
}
|
|
|
|
dep->de_locmem=
|
|
vm_map_phys(SELF, (void *) dep->de_linmem, dep->de_ramsize);
|
|
if (dep->de_locmem == MAP_FAILED)
|
|
panic("map_hw_buffer: vm_map_phys failed");
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* calc_iovec_size_s *
|
|
*===========================================================================*/
|
|
static int calc_iovec_size_s(iovp)
|
|
iovec_dat_s_t *iovp;
|
|
{
|
|
/* Calculate the size of a request. Note that the iovec_dat
|
|
* structure will be unusable after calc_iovec_size_s.
|
|
*/
|
|
int size;
|
|
int i;
|
|
|
|
size= 0;
|
|
i= 0;
|
|
while (i < iovp->iod_iovec_s)
|
|
{
|
|
if (i >= IOVEC_NR)
|
|
{
|
|
dp_next_iovec_s(iovp);
|
|
i= 0;
|
|
continue;
|
|
}
|
|
size += iovp->iod_iovec[i].iov_size;
|
|
i++;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* reply *
|
|
*===========================================================================*/
|
|
static void reply(dep)
|
|
dpeth_t *dep;
|
|
{
|
|
message reply;
|
|
int flags;
|
|
int r;
|
|
|
|
flags = DL_NOFLAGS;
|
|
if (dep->de_flags & DEF_PACK_SEND)
|
|
flags |= DL_PACK_SEND;
|
|
if (dep->de_flags & DEF_PACK_RECV)
|
|
flags |= DL_PACK_RECV;
|
|
|
|
reply.m_type = DL_TASK_REPLY;
|
|
reply.DL_FLAGS = flags;
|
|
reply.DL_COUNT = dep->de_read_s;
|
|
r= send(dep->de_client, &reply);
|
|
|
|
if (r < 0)
|
|
panic("dp8390: send failed: %d", r);
|
|
|
|
dep->de_read_s = 0;
|
|
dep->de_flags &= ~(DEF_PACK_SEND | DEF_PACK_RECV);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* mess_reply *
|
|
*===========================================================================*/
|
|
static void mess_reply(req, reply_mess)
|
|
message *req;
|
|
message *reply_mess;
|
|
{
|
|
if (send(req->m_source, reply_mess) != OK)
|
|
panic("dp8390: unable to mess_reply");
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* get_userdata_s *
|
|
*===========================================================================*/
|
|
static void get_userdata_s(user_proc, grant, offset, count, loc_addr)
|
|
int user_proc;
|
|
cp_grant_id_t grant;
|
|
vir_bytes offset;
|
|
vir_bytes count;
|
|
void *loc_addr;
|
|
{
|
|
int r;
|
|
|
|
r= sys_safecopyfrom(user_proc, grant, offset,
|
|
(vir_bytes)loc_addr, count);
|
|
if (r != OK)
|
|
panic("get_userdata: sys_safecopyfrom failed: %d", r);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* put_userdata_s *
|
|
*===========================================================================*/
|
|
static void put_userdata_s(user_proc, grant, count, loc_addr)
|
|
int user_proc;
|
|
cp_grant_id_t grant;
|
|
size_t count;
|
|
void *loc_addr;
|
|
{
|
|
int r;
|
|
|
|
r= sys_safecopyto(user_proc, grant, 0, (vir_bytes)loc_addr,
|
|
count);
|
|
if (r != OK)
|
|
panic("put_userdata: sys_safecopyto failed: %d", r);
|
|
}
|
|
|
|
u8_t inb(port_t port)
|
|
{
|
|
int r;
|
|
u32_t value;
|
|
|
|
r= sys_inb(port, &value);
|
|
if (r != OK)
|
|
{
|
|
printf("inb failed for port 0x%x\n", port);
|
|
panic("sys_inb failed: %d", r);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
u16_t inw(port_t port)
|
|
{
|
|
int r;
|
|
u32_t value;
|
|
|
|
r= sys_inw(port, &value);
|
|
if (r != OK)
|
|
panic("sys_inw failed: %d", r);
|
|
return (u16_t) value;
|
|
}
|
|
|
|
void outb(port_t port, u8_t value)
|
|
{
|
|
int r;
|
|
|
|
r= sys_outb(port, value);
|
|
if (r != OK)
|
|
panic("sys_outb failed: %d", r);
|
|
}
|
|
|
|
void outw(port_t port, u16_t value)
|
|
{
|
|
int r;
|
|
|
|
r= sys_outw(port, value);
|
|
if (r != OK)
|
|
panic("sys_outw failed: %d", r);
|
|
}
|
|
|
|
static void insb(port_t port, void *buf, size_t size)
|
|
{
|
|
do_vir_insb(port, SELF, (vir_bytes)buf, size);
|
|
}
|
|
|
|
static void insw(port_t port, void *buf, size_t size)
|
|
{
|
|
do_vir_insw(port, SELF, (vir_bytes)buf, size);
|
|
}
|
|
|
|
static void do_vir_insb(port_t port, int proc, vir_bytes buf, size_t size)
|
|
{
|
|
int r;
|
|
|
|
r= sys_insb(port, proc, (void *) buf, size);
|
|
if (r != OK)
|
|
panic("sys_sdevio failed: %d", r);
|
|
}
|
|
|
|
static void do_vir_insw(port_t port, int proc, vir_bytes buf, size_t size)
|
|
{
|
|
int r;
|
|
|
|
r= sys_insw(port, proc, (void *) buf, size);
|
|
if (r != OK)
|
|
panic("sys_sdevio failed: %d", r);
|
|
}
|
|
|
|
/*
|
|
* $PchId: dp8390.c,v 1.25 2005/02/10 17:32:07 philip Exp $
|
|
*/
|