diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/isdn/hardware/eicon/s_bri.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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 000000000000..5c87552e8c08 --- /dev/null +++ b/drivers/isdn/hardware/eicon/s_bri.c | |||
@@ -0,0 +1,191 @@ | |||
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 | /* -------------------------------------------------------------------------- */ | ||