--- /dev/null
+
+/*
+ *
+ Copyright (c) Eicon Networks, 2002.
+ *
+ This source file is supplied for the use with
+ Eicon Networks range of DIVA Server Adapters.
+ *
+ Eicon File Revision : 2.1
+ *
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+ *
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+ *
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include "platform.h"
+#include "di_defs.h"
+#include "pc.h"
+#include "pr_pc.h"
+#include "di.h"
+#include "mi_pc.h"
+#include "pc_maint.h"
+#include "divasync.h"
+#include "io.h"
+#include "helpers.h"
+#include "dsrv_bri.h"
+#include "dsp_defs.h"
+/*****************************************************************************/
+#define MAX_XLOG_SIZE (64 * 1024)
+/* --------------------------------------------------------------------------
+ Investigate card state, recovery trace buffer
+ -------------------------------------------------------------------------- */
+static void bri_cpu_trapped(PISDN_ADAPTER IoAdapter) {
+ byte __iomem *addrHi, *addrLo, *ioaddr;
+ word *Xlog;
+ dword regs[4], i, size;
+ Xdesc xlogDesc;
+ byte __iomem *Port;
+/*
+ * first read pointers and trap frame
+ */
+ if (!(Xlog = (word *)diva_os_malloc(0, MAX_XLOG_SIZE)))
+ return;
+ Port = DIVA_OS_MEM_ATTACH_PORT(IoAdapter);
+ addrHi = Port + ((IoAdapter->Properties.Bus == BUS_PCI) ? M_PCI_ADDRH : ADDRH);
+ addrLo = Port + ADDR;
+ ioaddr = Port + DATA;
+ outpp(addrHi, 0);
+ outppw(addrLo, 0);
+ for (i = 0; i < 0x100; Xlog[i++] = inppw(ioaddr));
+/*
+ * check for trapped MIPS 3xxx CPU, dump only exception frame
+ */
+ if (GET_DWORD(&Xlog[0x80 / sizeof(Xlog[0])]) == 0x99999999)
+ {
+ dump_trap_frame(IoAdapter, &((byte *)Xlog)[0x90]);
+ IoAdapter->trapped = 1;
+ }
+ regs[0] = GET_DWORD(&((byte *)Xlog)[0x70]);
+ regs[1] = GET_DWORD(&((byte *)Xlog)[0x74]);
+ regs[2] = GET_DWORD(&((byte *)Xlog)[0x78]);
+ regs[3] = GET_DWORD(&((byte *)Xlog)[0x7c]);
+ outpp(addrHi, (regs[1] >> 16) & 0x7F);
+ outppw(addrLo, regs[1] & 0xFFFF);
+ xlogDesc.cnt = inppw(ioaddr);
+ outpp(addrHi, (regs[2] >> 16) & 0x7F);
+ outppw(addrLo, regs[2] & 0xFFFF);
+ xlogDesc.out = inppw(ioaddr);
+ xlogDesc.buf = Xlog;
+ regs[0] &= IoAdapter->MemorySize - 1;
+ if ((regs[0] < IoAdapter->MemorySize - 1))
+ {
+ size = IoAdapter->MemorySize - regs[0];
+ if (size > MAX_XLOG_SIZE)
+ size = MAX_XLOG_SIZE;
+ for (i = 0; i < (size / sizeof(*Xlog)); regs[0] += 2)
+ {
+ outpp(addrHi, (regs[0] >> 16) & 0x7F);
+ outppw(addrLo, regs[0] & 0xFFFF);
+ Xlog[i++] = inppw(ioaddr);
+ }
+ dump_xlog_buffer(IoAdapter, &xlogDesc);
+ diva_os_free(0, Xlog);
+ IoAdapter->trapped = 2;
+ }
+ outpp(addrHi, (byte)((BRI_UNCACHED_ADDR(IoAdapter->MemoryBase + IoAdapter->MemorySize -
+ BRI_SHARED_RAM_SIZE)) >> 16));
+ outppw(addrLo, 0x00);
+ DIVA_OS_MEM_DETACH_PORT(IoAdapter, Port);
+}
+/* ---------------------------------------------------------------------
+ Reset hardware
+ --------------------------------------------------------------------- */
+static void reset_bri_hardware(PISDN_ADAPTER IoAdapter) {
+ byte __iomem *p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter);
+ outpp(p, 0x00);
+ DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p);
+}
+/* ---------------------------------------------------------------------
+ Halt system
+ --------------------------------------------------------------------- */
+static void stop_bri_hardware(PISDN_ADAPTER IoAdapter) {
+ byte __iomem *p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter);
+ if (p) {
+ outpp(p, 0x00); /* disable interrupts ! */
+ }
+ DIVA_OS_MEM_DETACH_RESET(IoAdapter, p);
+ p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter);
+ outpp(p, 0x00); /* clear int, halt cpu */
+ DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p);
+}
+static int load_bri_hardware(PISDN_ADAPTER IoAdapter) {
+ return (0);
+}
+/******************************************************************************/
+static int bri_ISR(struct _ISDN_ADAPTER *IoAdapter) {
+ byte __iomem *p;
+
+ p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter);
+ if (!(inpp(p) & 0x01)) {
+ DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p);
+ return (0);
+ }
+ /*
+ clear interrupt line
+ */
+ outpp(p, 0x08);
+ DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p);
+ IoAdapter->IrqCount++;
+ if (IoAdapter->Initialized) {
+ diva_os_schedule_soft_isr(&IoAdapter->isr_soft_isr);
+ }
+ return (1);
+}
+/* --------------------------------------------------------------------------
+ Disable IRQ in the card hardware
+ -------------------------------------------------------------------------- */
+static void disable_bri_interrupt(PISDN_ADAPTER IoAdapter) {
+ byte __iomem *p;
+ p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter);
+ if (p)
+ {
+ outpp(p, 0x00); /* disable interrupts ! */
+ }
+ DIVA_OS_MEM_DETACH_RESET(IoAdapter, p);
+ p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter);
+ outpp(p, 0x00); /* clear int, halt cpu */
+ DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p);
+}
+/* -------------------------------------------------------------------------
+ Fill card entry points
+ ------------------------------------------------------------------------- */
+void prepare_maestra_functions(PISDN_ADAPTER IoAdapter) {
+ ADAPTER *a = &IoAdapter->a;
+ a->ram_in = io_in;
+ a->ram_inw = io_inw;
+ a->ram_in_buffer = io_in_buffer;
+ a->ram_look_ahead = io_look_ahead;
+ a->ram_out = io_out;
+ a->ram_outw = io_outw;
+ a->ram_out_buffer = io_out_buffer;
+ a->ram_inc = io_inc;
+ IoAdapter->MemoryBase = BRI_MEMORY_BASE;
+ IoAdapter->MemorySize = BRI_MEMORY_SIZE;
+ IoAdapter->out = pr_out;
+ IoAdapter->dpc = pr_dpc;
+ IoAdapter->tst_irq = scom_test_int;
+ IoAdapter->clr_irq = scom_clear_int;
+ IoAdapter->pcm = (struct pc_maint *)MIPS_MAINT_OFFS;
+ IoAdapter->load = load_bri_hardware;
+ IoAdapter->disIrq = disable_bri_interrupt;
+ IoAdapter->rstFnc = reset_bri_hardware;
+ IoAdapter->stop = stop_bri_hardware;
+ IoAdapter->trapFnc = bri_cpu_trapped;
+ IoAdapter->diva_isr_handler = bri_ISR;
+ /*
+ Prepare OS dependent functions
+ */
+ diva_os_prepare_maestra_functions(IoAdapter);
+}
+/* -------------------------------------------------------------------------- */
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