Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * |
| 4 | Copyright (c) Eicon Networks, 2002. |
| 5 | * |
| 6 | This source file is supplied for the use with |
| 7 | Eicon Networks range of DIVA Server Adapters. |
| 8 | * |
| 9 | Eicon File Revision : 2.1 |
| 10 | * |
| 11 | This program is free software; you can redistribute it and/or modify |
| 12 | it under the terms of the GNU General Public License as published by |
| 13 | the Free Software Foundation; either version 2, or (at your option) |
| 14 | any later version. |
| 15 | * |
| 16 | This program is distributed in the hope that it will be useful, |
| 17 | but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY |
| 18 | implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 19 | See the GNU General Public License for more details. |
| 20 | * |
| 21 | You should have received a copy of the GNU General Public License |
| 22 | along with this program; if not, write to the Free Software |
| 23 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | * |
| 25 | */ |
| 26 | #include "platform.h" |
| 27 | #include "di_defs.h" |
| 28 | #include "pc.h" |
| 29 | #include "pr_pc.h" |
| 30 | #include "di.h" |
| 31 | #include "mi_pc.h" |
| 32 | #include "pc_maint.h" |
| 33 | #include "divasync.h" |
| 34 | #include "io.h" |
| 35 | #include "helpers.h" |
| 36 | #include "dsrv_bri.h" |
| 37 | #include "dsp_defs.h" |
| 38 | /*****************************************************************************/ |
| 39 | #define MAX_XLOG_SIZE (64 * 1024) |
| 40 | /* -------------------------------------------------------------------------- |
| 41 | Investigate card state, recovery trace buffer |
| 42 | -------------------------------------------------------------------------- */ |
| 43 | static void bri_cpu_trapped (PISDN_ADAPTER IoAdapter) { |
| 44 | byte __iomem *addrHi, *addrLo, *ioaddr ; |
| 45 | word *Xlog ; |
| 46 | dword regs[4], i, size ; |
| 47 | Xdesc xlogDesc ; |
| 48 | byte __iomem *Port; |
| 49 | /* |
| 50 | * first read pointers and trap frame |
| 51 | */ |
| 52 | if ( !(Xlog = (word *)diva_os_malloc (0, MAX_XLOG_SIZE)) ) |
| 53 | return ; |
| 54 | Port = DIVA_OS_MEM_ATTACH_PORT(IoAdapter); |
| 55 | addrHi = Port + ((IoAdapter->Properties.Bus == BUS_PCI) ? M_PCI_ADDRH : ADDRH) ; |
| 56 | addrLo = Port + ADDR ; |
| 57 | ioaddr = Port + DATA ; |
| 58 | outpp (addrHi, 0) ; |
| 59 | outppw (addrLo, 0) ; |
| 60 | for ( i = 0 ; i < 0x100 ; Xlog[i++] = inppw(ioaddr) ) ; |
| 61 | /* |
| 62 | * check for trapped MIPS 3xxx CPU, dump only exception frame |
| 63 | */ |
| 64 | if ( GET_DWORD(&Xlog[0x80 / sizeof(Xlog[0])]) == 0x99999999 ) |
| 65 | { |
| 66 | dump_trap_frame (IoAdapter, &((byte *)Xlog)[0x90]) ; |
| 67 | IoAdapter->trapped = 1 ; |
| 68 | } |
| 69 | regs[0] = GET_DWORD(&((byte *)Xlog)[0x70]); |
| 70 | regs[1] = GET_DWORD(&((byte *)Xlog)[0x74]); |
| 71 | regs[2] = GET_DWORD(&((byte *)Xlog)[0x78]); |
| 72 | regs[3] = GET_DWORD(&((byte *)Xlog)[0x7c]); |
| 73 | outpp (addrHi, (regs[1] >> 16) & 0x7F) ; |
| 74 | outppw (addrLo, regs[1] & 0xFFFF) ; |
| 75 | xlogDesc.cnt = inppw(ioaddr) ; |
| 76 | outpp (addrHi, (regs[2] >> 16) & 0x7F) ; |
| 77 | outppw (addrLo, regs[2] & 0xFFFF) ; |
| 78 | xlogDesc.out = inppw(ioaddr) ; |
| 79 | xlogDesc.buf = Xlog ; |
| 80 | regs[0] &= IoAdapter->MemorySize - 1 ; |
| 81 | if ( (regs[0] < IoAdapter->MemorySize - 1) ) |
| 82 | { |
| 83 | size = IoAdapter->MemorySize - regs[0] ; |
| 84 | if ( size > MAX_XLOG_SIZE ) |
| 85 | size = MAX_XLOG_SIZE ; |
| 86 | for ( i = 0 ; i < (size / sizeof(*Xlog)) ; regs[0] += 2 ) |
| 87 | { |
| 88 | outpp (addrHi, (regs[0] >> 16) & 0x7F) ; |
| 89 | outppw (addrLo, regs[0] & 0xFFFF) ; |
| 90 | Xlog[i++] = inppw(ioaddr) ; |
| 91 | } |
| 92 | dump_xlog_buffer (IoAdapter, &xlogDesc) ; |
| 93 | diva_os_free (0, Xlog) ; |
| 94 | IoAdapter->trapped = 2 ; |
| 95 | } |
| 96 | outpp (addrHi, (byte)((BRI_UNCACHED_ADDR (IoAdapter->MemoryBase + IoAdapter->MemorySize - |
| 97 | BRI_SHARED_RAM_SIZE)) >> 16)) ; |
| 98 | outppw (addrLo, 0x00) ; |
| 99 | DIVA_OS_MEM_DETACH_PORT(IoAdapter, Port); |
| 100 | } |
| 101 | /* --------------------------------------------------------------------- |
| 102 | Reset hardware |
| 103 | --------------------------------------------------------------------- */ |
| 104 | static void reset_bri_hardware (PISDN_ADAPTER IoAdapter) { |
| 105 | byte __iomem *p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter); |
| 106 | outpp (p, 0x00) ; |
| 107 | DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p); |
| 108 | } |
| 109 | /* --------------------------------------------------------------------- |
| 110 | Halt system |
| 111 | --------------------------------------------------------------------- */ |
| 112 | static void stop_bri_hardware (PISDN_ADAPTER IoAdapter) { |
| 113 | byte __iomem *p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter); |
| 114 | if (p) { |
| 115 | outpp (p, 0x00) ; /* disable interrupts ! */ |
| 116 | } |
| 117 | DIVA_OS_MEM_DETACH_RESET(IoAdapter, p); |
| 118 | p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter); |
| 119 | outpp (p, 0x00) ; /* clear int, halt cpu */ |
| 120 | DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p); |
| 121 | } |
| 122 | static int load_bri_hardware (PISDN_ADAPTER IoAdapter) { |
| 123 | return (0); |
| 124 | } |
| 125 | /******************************************************************************/ |
| 126 | static int bri_ISR (struct _ISDN_ADAPTER* IoAdapter) { |
| 127 | byte __iomem *p; |
| 128 | |
| 129 | p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter); |
| 130 | if ( !(inpp (p) & 0x01) ) { |
| 131 | DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p); |
| 132 | return (0) ; |
| 133 | } |
| 134 | /* |
| 135 | clear interrupt line |
| 136 | */ |
| 137 | outpp (p, 0x08) ; |
| 138 | DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p); |
| 139 | IoAdapter->IrqCount++ ; |
| 140 | if ( IoAdapter->Initialized ) { |
| 141 | diva_os_schedule_soft_isr (&IoAdapter->isr_soft_isr); |
| 142 | } |
| 143 | return (1) ; |
| 144 | } |
| 145 | /* -------------------------------------------------------------------------- |
| 146 | Disable IRQ in the card hardware |
| 147 | -------------------------------------------------------------------------- */ |
| 148 | static void disable_bri_interrupt (PISDN_ADAPTER IoAdapter) { |
| 149 | byte __iomem *p; |
| 150 | p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter); |
| 151 | if ( p ) |
| 152 | { |
| 153 | outpp (p, 0x00) ; /* disable interrupts ! */ |
| 154 | } |
| 155 | DIVA_OS_MEM_DETACH_RESET(IoAdapter, p); |
| 156 | p = DIVA_OS_MEM_ATTACH_CTLREG(IoAdapter); |
| 157 | outpp (p, 0x00) ; /* clear int, halt cpu */ |
| 158 | DIVA_OS_MEM_DETACH_CTLREG(IoAdapter, p); |
| 159 | } |
| 160 | /* ------------------------------------------------------------------------- |
| 161 | Fill card entry points |
| 162 | ------------------------------------------------------------------------- */ |
| 163 | void prepare_maestra_functions (PISDN_ADAPTER IoAdapter) { |
| 164 | ADAPTER *a = &IoAdapter->a ; |
| 165 | a->ram_in = io_in ; |
| 166 | a->ram_inw = io_inw ; |
| 167 | a->ram_in_buffer = io_in_buffer ; |
| 168 | a->ram_look_ahead = io_look_ahead ; |
| 169 | a->ram_out = io_out ; |
| 170 | a->ram_outw = io_outw ; |
| 171 | a->ram_out_buffer = io_out_buffer ; |
| 172 | a->ram_inc = io_inc ; |
| 173 | IoAdapter->MemoryBase = BRI_MEMORY_BASE ; |
| 174 | IoAdapter->MemorySize = BRI_MEMORY_SIZE ; |
| 175 | IoAdapter->out = pr_out ; |
| 176 | IoAdapter->dpc = pr_dpc ; |
| 177 | IoAdapter->tst_irq = scom_test_int ; |
| 178 | IoAdapter->clr_irq = scom_clear_int ; |
| 179 | IoAdapter->pcm = (struct pc_maint *)MIPS_MAINT_OFFS ; |
| 180 | IoAdapter->load = load_bri_hardware ; |
| 181 | IoAdapter->disIrq = disable_bri_interrupt ; |
| 182 | IoAdapter->rstFnc = reset_bri_hardware ; |
| 183 | IoAdapter->stop = stop_bri_hardware ; |
| 184 | IoAdapter->trapFnc = bri_cpu_trapped ; |
| 185 | IoAdapter->diva_isr_handler = bri_ISR; |
| 186 | /* |
| 187 | Prepare OS dependent functions |
| 188 | */ |
| 189 | diva_os_prepare_maestra_functions (IoAdapter); |
| 190 | } |
| 191 | /* -------------------------------------------------------------------------- */ |