Mercurial > flash_v2

annotate packages/io/serial/current/src/arm/ebsa285_serial.c @ 76:435cced73e2f ecos-v1_3_1-release

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
author jlarmour
date Tue, 28 Mar 2000 14:10:45 +0000
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
76
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
1 //==========================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
2 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
3 // io/serial/arm/ebsa285_serial.c
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
4 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
5 // ARM EBSA285 Serial I/O Interface Module (interrupt driven)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
6 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
7 //==========================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
8 //####COPYRIGHTBEGIN####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
9 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
10 // -------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
11 // The contents of this file are subject to the Red Hat eCos Public License
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
12 // Version 1.1 (the "License"); you may not use this file except in
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
13 // compliance with the License. You may obtain a copy of the License at
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
14 // http://www.redhat.com/
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
15 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
16 // Software distributed under the License is distributed on an "AS IS"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
18 // License for the specific language governing rights and limitations under
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
19 // the License.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
20 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
21 // The Original Code is eCos - Embedded Configurable Operating System,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
22 // released September 30, 1998.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
23 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
24 // The Initial Developer of the Original Code is Red Hat.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
25 // Portions created by Red Hat are
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
27 // All Rights Reserved.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
28 // -------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
29 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
30 //####COPYRIGHTEND####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
31 //==========================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
32 //#####DESCRIPTIONBEGIN####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
33 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
34 // Author(s): hmt
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
35 // Contributors: hmt
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
36 // Date: 1999-07-26
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
37 // Purpose: EBSA285 Serial I/O module (interrupt driven version)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
38 // Description:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
39 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
40 //####DESCRIPTIONEND####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
41 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
42 //==========================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
43
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
44 #include <pkgconf/system.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
45 #include <pkgconf/io_serial.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
46 #include <pkgconf/io.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
47
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
48 #ifdef CYGPKG_IO_SERIAL_ARM_EBSA285
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
49
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
50 #include <cyg/io/io.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
51 #include <cyg/hal/hal_intr.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
52 #include <cyg/io/devtab.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
53 #include <cyg/io/serial.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
54 #include <cyg/infra/diag.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
55
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
56 #include <cyg/hal/hal_ebsa285.h> // Hardware definitions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
57
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
58 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
59 // Baud rates and the like, table-driven setup
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
60 #define FCLK_MHZ 50
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
61
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
62 struct _baud {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
63 unsigned char divisor_high, divisor_low;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
64 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
65
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
66 // The indexing of this table must match the enum in serialio.h
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
67 // The arithmetic is (clock/4)/(baud * 16) - 1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
68
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
69 #define NONE {0,0}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
70 const static struct _baud bauds[] = {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
71 #if (FCLK_MHZ == 50)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
72 NONE, // unused
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
73 NONE, // 50
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
74 NONE, // 75
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
75 NONE, // 110
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
76 NONE, // 134.5
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
77 NONE, // 150
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
78 NONE, // 200
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
79 { 0xA, 0x2B }, // 300 2603 = 0x0A2B
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
80 { 0x5, 0x15 }, // 600 1301 = 0x0515
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
81 { 0x2, 0x8A }, // 1200 650 = 0x028A
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
82 { 0x1, 0xB1 }, // 1800 433 = 0x01B1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
83 { 0x1, 0x45 }, // 2400 325 = 0x0145
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
84 { 0x0, 0xD8 }, // 3600 216 = 0x00D8
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
85 { 0x0, 0xA2 }, // 4800 162 = 0x00A2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
86 { 0x0, 0x6B }, // 7200 107 = 0x006B
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
87 { 0x0, 0x50 }, // 9600 80 = 0x0050
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
88 { 0x0, 0x35 }, // 14400 53 = 0x0035
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
89 { 0x0, 0x28 }, // 19200 40 = 0x0028
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
90 { 0x0, 0x13 }, // 38400 19 = 0x0013
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
91 NONE, // 57600
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
92 NONE, // 115200
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
93 NONE // 230400
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
94 #elif (FCLK_MHZ == 60)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
95 #error NOT SUPPORTED - these figures are more for documentation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
96 { /* 300, */ 0xC, 0x34}, /* 2603 = 0x0A2B */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
97 { /* 600, */ 0x6, 0x19}, /* 1301 = 0x0515 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
98 { /* 1200, */ 0x3, 0x0C}, /* 650 = 0x028A */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
99 { /* 2400, */ 0x1, 0x86}, /* 325 = 0x0145 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
100 { /* 4800, */ 0x0, 0xC2}, /* 162 = 0x00A2 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
101 { /* 9600, */ 0x0, 0x61}, /* 80 = 0x0050 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
102 { /* 19200, */ 0x0, 0x30}, /* 40 = 0x0028 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
103 { /* 38400, */ 0x0, 0x17}, /* 19 = 0x0013 */
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
104 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
105 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
106
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
107 static int select_word_length[] = {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
108 SA110_UART_DATA_LENGTH_5_BITS, // 5 bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
109 SA110_UART_DATA_LENGTH_6_BITS, // 6 bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
110 SA110_UART_DATA_LENGTH_7_BITS, // 7 bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
111 SA110_UART_DATA_LENGTH_8_BITS // 8 bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
112 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
113
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
114 static int select_stop_bits[] = {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
115 -1, // unused
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
116 SA110_UART_STOP_BITS_ONE, // 1 stop bit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
117 -1, // 1.5 stop bit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
118 SA110_UART_STOP_BITS_TWO // 2 stop bits
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
119 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
120
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
121 static int select_parity[] = {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
122 SA110_UART_PARITY_DISABLED, // No parity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
123 SA110_UART_PARITY_ENABLED | SA110_UART_PARITY_EVEN, // Even parity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
124 SA110_UART_PARITY_ENABLED | SA110_UART_PARITY_ODD, // Odd parity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
125 -1, // Mark parity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
126 -1 // Space parity
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
127 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
128
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
129 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
130 // some forward references
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
131
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
132 struct ebsa285_serial_interrupt {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
133 CYG_WORD int_num;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
134 cyg_interrupt serial_interrupt;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
135 cyg_handle_t serial_interrupt_handle;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
136 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
137
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
138 typedef struct ebsa285_serial_info {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
139 struct ebsa285_serial_interrupt rx;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
140 struct ebsa285_serial_interrupt tx;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
141 } ebsa285_serial_info;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
142
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
143 static bool ebsa285_serial_init(struct cyg_devtab_entry *tab);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
144 static bool ebsa285_serial_putc(serial_channel *chan, unsigned char c);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
145 static Cyg_ErrNo ebsa285_serial_lookup(struct cyg_devtab_entry **tab,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
146 struct cyg_devtab_entry *sub_tab,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
147 const char *name);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
148 static unsigned char ebsa285_serial_getc(serial_channel *chan);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
149 static bool ebsa285_serial_set_config(serial_channel *chan, cyg_serial_info_t *config);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
150 static void ebsa285_serial_start_xmit(serial_channel *chan);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
151 static void ebsa285_serial_stop_xmit(serial_channel *chan);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
152
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
153 static cyg_uint32 ebsa285_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
154 static void ebsa285_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
155 static cyg_uint32 ebsa285_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
156 static void ebsa285_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
157
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
158 static SERIAL_FUNS(ebsa285_serial_funs,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
159 ebsa285_serial_putc,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
160 ebsa285_serial_getc,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
161 ebsa285_serial_set_config,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
162 ebsa285_serial_start_xmit,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
163 ebsa285_serial_stop_xmit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
164 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
165
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
166
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
167 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
168 // this is dummy in config: there is only one device on the EBSA285
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
169 #define CYGPKG_IO_SERIAL_ARM_EBSA285_SERIAL // so always define it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
170 #ifdef CYGPKG_IO_SERIAL_ARM_EBSA285_SERIAL
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
171
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
172 static ebsa285_serial_info ebsa285_serial_info1 = {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
173 { CYGNUM_HAL_INTERRUPT_SERIAL_RX },
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
174 { CYGNUM_HAL_INTERRUPT_SERIAL_TX }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
175 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
176
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
177 #if CYGNUM_IO_SERIAL_ARM_EBSA285_SERIAL_BUFSIZE > 0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
178 static unsigned char ebsa285_serial_out_buf[CYGNUM_IO_SERIAL_ARM_EBSA285_SERIAL_BUFSIZE];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
179 static unsigned char ebsa285_serial_in_buf[CYGNUM_IO_SERIAL_ARM_EBSA285_SERIAL_BUFSIZE];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
180
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
181 static SERIAL_CHANNEL_USING_INTERRUPTS(ebsa285_serial_channel,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
182 ebsa285_serial_funs,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
183 ebsa285_serial_info1,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
184 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_EBSA285_SERIAL_BAUD),
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
185 CYG_SERIAL_STOP_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
186 CYG_SERIAL_PARITY_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
187 CYG_SERIAL_WORD_LENGTH_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
188 CYG_SERIAL_FLAGS_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
189 &ebsa285_serial_out_buf[0], sizeof(ebsa285_serial_out_buf),
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
190 &ebsa285_serial_in_buf[0], sizeof(ebsa285_serial_in_buf)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
191 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
192 #else
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
193 static SERIAL_CHANNEL(ebsa285_serial_channel,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
194 ebsa285_serial_funs,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
195 ebsa285_serial_info1,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
196 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_EBSA285_SERIAL_BAUD),
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
197 CYG_SERIAL_STOP_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
198 CYG_SERIAL_PARITY_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
199 CYG_SERIAL_WORD_LENGTH_DEFAULT,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
200 CYG_SERIAL_FLAGS_DEFAULT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
201 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
202 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
203
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
204 DEVTAB_ENTRY(ebsa285_serial_io,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
205 CYGDAT_IO_SERIAL_ARM_EBSA285_SERIAL_NAME,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
206 0, // Does not depend on a lower level interface
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
207 &cyg_io_serial_devio,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
208 ebsa285_serial_init,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
209 ebsa285_serial_lookup, // Serial driver may need initializing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
210 &ebsa285_serial_channel
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
211 );
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
212 #endif // CYGPKG_IO_SERIAL_ARM_EBSA285_SERIAL
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
213
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
214 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
215
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
216
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
217 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
218 // Internal function to actually configure the hardware to desired baud rate, etc.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
219 static bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
220 ebsa285_serial_config_port(serial_channel *chan, cyg_serial_info_t *new_config, bool init)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
221 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
222 int dummy, h, m, l;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
223
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
224 // Make sure everything is off
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
225 *SA110_UART_CONTROL_REGISTER = SA110_UART_DISABLED | SA110_SIR_DISABLED;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
226
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
227 // Read the RXStat to drain the fifo
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
228 dummy = *SA110_UART_RXSTAT;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
229
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
230 // Set the baud rate - this also turns the uart on.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
231 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
232 // Note that the ordering of these writes is critical,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
233 // and the writes to the H_BAUD_CONTROL and CONTROL_REGISTER
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
234 // are necessary to force the UART to update its register
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
235 // contents.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
236
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
237 l = bauds[new_config->baud].divisor_low; // zeros in unused slots here
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
238 m = bauds[new_config->baud].divisor_high; // and here
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
239 h = SA110_UART_BREAK_DISABLED |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
240 select_stop_bits[new_config->stop] | // -1s in unused slots for these
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
241 select_parity[new_config->parity] | // and these
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
242 SA110_UART_FIFO_ENABLED | // and these below
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
243 select_word_length[new_config->word_length - CYGNUM_SERIAL_WORD_LENGTH_5];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
244
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
245 if ( 0 != (l + m) && h >= 0 && h < 256 ) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
246 *SA110_UART_L_BAUD_CONTROL = l;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
247 *SA110_UART_M_BAUD_CONTROL = m;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
248 *SA110_UART_H_BAUD_CONTROL = h;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
249 init = true; // AOK
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
250 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
251 else if ( init ) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
252 // put in some sensible defaults
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
253 *SA110_UART_L_BAUD_CONTROL = 0x13; // bp->divisor_low;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
254 *SA110_UART_M_BAUD_CONTROL = 0x00; // bp->divisor_high;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
255 *SA110_UART_H_BAUD_CONTROL = SA110_UART_BREAK_DISABLED |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
256 SA110_UART_PARITY_DISABLED |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
257 SA110_UART_STOP_BITS_ONE |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
258 SA110_UART_FIFO_ENABLED |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
259 SA110_UART_DATA_LENGTH_8_BITS;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
260 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
261
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
262 // All set, re-enable the device:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
263 *SA110_UART_CONTROL_REGISTER = SA110_UART_ENABLED | SA110_SIR_DISABLED;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
264
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
265 if (init && new_config != &chan->config) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
266 // record the new setup
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
267 chan->config = *new_config;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
268 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
269 // All done
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
270 return init;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
271 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
272
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
273 // Function to initialize the device. Called at bootstrap time.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
274 static bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
275 ebsa285_serial_init(struct cyg_devtab_entry *tab)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
276 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
277 serial_channel *chan = (serial_channel *)tab->priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
278 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
279 #ifdef CYGDBG_IO_INIT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
280 diag_printf("EBSA285 SERIAL init - dev: %x.%d\n", ebsa285_chan->base, ebsa285_chan->int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
281 #endif
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
282 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
283 if (chan->out_cbuf.len != 0) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
284
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
285 // first for rx
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
286 cyg_drv_interrupt_create(ebsa285_chan->rx.int_num,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
287 99, // Priority - unused
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
288 (cyg_addrword_t)chan, // Data item passed to interrupt handler
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
289 ebsa285_serial_rx_ISR,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
290 ebsa285_serial_rx_DSR,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
291 &ebsa285_chan->rx.serial_interrupt_handle,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
292 &ebsa285_chan->rx.serial_interrupt);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
293 cyg_drv_interrupt_attach(ebsa285_chan->rx.serial_interrupt_handle);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
294 cyg_drv_interrupt_unmask(ebsa285_chan->rx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
295
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
296 // then for tx
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
297 cyg_drv_interrupt_create(ebsa285_chan->tx.int_num,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
298 99, // Priority - unused
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
299 (cyg_addrword_t)chan, // Data item passed to interrupt handler
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
300 ebsa285_serial_tx_ISR,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
301 ebsa285_serial_tx_DSR,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
302 &ebsa285_chan->tx.serial_interrupt_handle,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
303 &ebsa285_chan->tx.serial_interrupt);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
304 cyg_drv_interrupt_attach(ebsa285_chan->tx.serial_interrupt_handle);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
305 // DO NOT cyg_drv_interrupt_unmask(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
306 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
307 (void)ebsa285_serial_config_port(chan, &chan->config, true);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
308 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
309 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
310
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
311 // This routine is called when the device is "looked" up (i.e. attached)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
312 static Cyg_ErrNo
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
313 ebsa285_serial_lookup(struct cyg_devtab_entry **tab,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
314 struct cyg_devtab_entry *sub_tab,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
315 const char *name)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
316 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
317 serial_channel *chan = (serial_channel *)(*tab)->priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
318 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
319 return ENOERR;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
320 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
321
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
322 // Send a character to the device output buffer.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
323 // Return 'true' if character is sent to device
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
324 static bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
325 ebsa285_serial_putc(serial_channel *chan, unsigned char c)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
326 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
327 if ((*SA110_UART_FLAG_REGISTER & SA110_TX_FIFO_STATUS_MASK) == SA110_TX_FIFO_BUSY)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
328 return false; // No space
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
329
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
330 *SA110_UART_DATA_REGISTER = c; // Transmit buffer is empty
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
331 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
332 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
333
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
334 // Fetch a character from the device input buffer, waiting if necessary
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
335 static unsigned char
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
336 ebsa285_serial_getc(serial_channel *chan)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
337 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
338 unsigned char c;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
339 while ((*SA110_UART_FLAG_REGISTER & SA110_RX_FIFO_STATUS_MASK) == SA110_RX_FIFO_EMPTY)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
340 ; // wait for char
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
341 c = (char)(*SA110_UART_DATA_REGISTER & 0xFF);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
342 // no error checking... no way to return the info
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
343 return c;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
344 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
345
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
346 // Set up the device characteristics; baud rate, etc.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
347 static bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
348 ebsa285_serial_set_config(serial_channel *chan, cyg_serial_info_t *config)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
349 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
350 return ebsa285_serial_config_port(chan, config, false);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
351 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
352
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
353 // Enable the transmitter on the device (nope, already in use by hal_diag)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
354 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
355 ebsa285_serial_start_xmit(serial_channel *chan)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
356 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
357 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
358 cyg_drv_interrupt_unmask(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
359 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
360
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
361 // Disable the transmitter on the device (nope, remains in use by hal_diag)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
362 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
363 ebsa285_serial_stop_xmit(serial_channel *chan)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
364 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
365 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
366 cyg_drv_interrupt_mask(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
367 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
368
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
369 // Serial I/O - low level interrupt handlers (ISR)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
370 static cyg_uint32
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
371 ebsa285_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
372 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
373 serial_channel *chan = (serial_channel *)data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
374 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
375 cyg_drv_interrupt_mask(ebsa285_chan->rx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
376 cyg_drv_interrupt_acknowledge(ebsa285_chan->rx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
377 return CYG_ISR_CALL_DSR; // Cause DSR to be run
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
378 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
379
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
380 static cyg_uint32
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
381 ebsa285_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
382 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
383 serial_channel *chan = (serial_channel *)data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
384 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
385 cyg_drv_interrupt_mask(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
386 cyg_drv_interrupt_acknowledge(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
387 return CYG_ISR_CALL_DSR; // Cause DSR to be run
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
388 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
389
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
390 // Serial I/O - high level interrupt handlers (DSR)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
391 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
392 ebsa285_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
393 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
394 serial_channel *chan = (serial_channel *)data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
395 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
396 if ((*SA110_UART_FLAG_REGISTER & SA110_RX_FIFO_STATUS_MASK) != SA110_RX_FIFO_EMPTY) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
397 char c = (char)(*SA110_UART_DATA_REGISTER & 0xFF);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
398 int status;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
399 c = (char)(*SA110_UART_DATA_REGISTER & 0xFF);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
400 status = *SA110_UART_RXSTAT;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
401 if ( 0 == (status & (SA110_UART_FRAMING_ERROR_MASK |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
402 SA110_UART_PARITY_ERROR_MASK |
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
403 SA110_UART_OVERRUN_ERROR_MASK)) )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
404 (chan->callbacks->rcv_char)(chan, c);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
405 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
406 cyg_drv_interrupt_unmask(ebsa285_chan->rx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
407 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
408
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
409 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
410 ebsa285_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
411 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
412 serial_channel *chan = (serial_channel *)data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
413 ebsa285_serial_info *ebsa285_chan = (ebsa285_serial_info *)chan->dev_priv;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
414 if ((*SA110_UART_FLAG_REGISTER & SA110_TX_FIFO_STATUS_MASK) != SA110_TX_FIFO_BUSY) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
415 (chan->callbacks->xmt_char)(chan);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
416 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
417 cyg_drv_interrupt_unmask(ebsa285_chan->tx.int_num);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
418 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
419 #endif // CYGPKG_IO_SERIAL_ARM_EBSA285
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
420
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
421 // ------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST
jlarmour
parents:
diff changeset
422 // EOF ebsa285_serial.c