diff options
Diffstat (limited to 'drivers/isdn/hardware/eicon/s_bri.c')
| -rw-r--r-- | drivers/isdn/hardware/eicon/s_bri.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/eicon/s_bri.c b/drivers/isdn/hardware/eicon/s_bri.c new file mode 100644 index 0000000..5c87552 --- /dev/null +++ b/drivers/isdn/hardware/eicon/s_bri.c @@ -0,0 +1,191 @@ + +/* + * + 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); +} +/* -------------------------------------------------------------------------- */ |
