Mercurial > ecos

annotate packages/devs/serial/arm/e7t/current/src/e7t_serial.c @ 3292:7f8e529b4d82 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1493
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
1 //==========================================================================
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
2 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
3 // io/serial/arm/e7t_serial.c
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
4 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
5 // ARM AEB-2 Serial I/O Interface Module (interrupt driven)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
6 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
7 //==========================================================================
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
10 // This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 191
diff changeset
12 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
16 // version.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 191
diff changeset
17 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
21 // for more details.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 191
diff changeset
22 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 191
diff changeset
26 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
33 // General Public License v2.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 191
diff changeset
34 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 1493
diff changeset
38 // ####ECOSGPLCOPYRIGHTEND####
1493
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
39 // ====================================================================
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
40 //#####DESCRIPTIONBEGIN####
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
41 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
42 // Author(s): Lars.Lindqvist@combitechsystems.com
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
43 // Contributors: jlarmour
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
44 // Date: 2001-10-19
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
45 // Purpose: ARM AEB-2 Serial I/O Interface Module (interrupt driven)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
46 // Description:
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
47 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
48 //####DESCRIPTIONEND####
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
49 //
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
50 // ====================================================================
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
51
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
52 #include <pkgconf/system.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
53 #include <pkgconf/io_serial.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
54 #include <pkgconf/io.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
55 #include <cyg/io/io.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
56 #include <cyg/hal/hal_intr.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
57 #include <cyg/io/devtab.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
58 #include <cyg/io/serial.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
59 #include <cyg/io/serialio.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
60 #include <cyg/infra/diag.h>
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
61
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
62 #ifdef CYGPKG_IO_SERIAL_ARM_E7T
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
63
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
64 #include "e7t_serial.h"
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
65
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
66 typedef struct e7t_serial_info {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
67 CYG_ADDRWORD base;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
68 CYG_WORD tx_int_num;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
69 CYG_WORD rx_int_num;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
70 cyg_interrupt serial_tx_interrupt;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
71 cyg_interrupt serial_rx_interrupt;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
72 cyg_handle_t serial_tx_interrupt_handle;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
73 cyg_handle_t serial_rx_interrupt_handle;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
74 bool tx_enabled;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
75 } e7t_serial_info;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
76
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
77 static bool e7t_serial_init(struct cyg_devtab_entry *tab);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
78 static bool e7t_serial_putc(serial_channel *chan, unsigned char c);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
79 static Cyg_ErrNo e7t_serial_lookup(struct cyg_devtab_entry **tab,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
80 struct cyg_devtab_entry *sub_tab,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
81 const char *name);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
82 static unsigned char e7t_serial_getc(serial_channel *chan);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
83 static Cyg_ErrNo e7t_serial_set_config(serial_channel *chan,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
84 cyg_uint32 key,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
85 const void *xbuf, cyg_uint32 *len);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
86 static void e7t_serial_start_xmit(serial_channel *chan);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
87 static void e7t_serial_stop_xmit(serial_channel *chan);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
88
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
89 static cyg_uint32 e7t_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
90 static void e7t_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
91 static cyg_uint32 e7t_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
92 static void e7t_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
93
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
94 static SERIAL_FUNS(e7t_serial_funs,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
95 e7t_serial_putc,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
96 e7t_serial_getc,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
97 e7t_serial_set_config,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
98 e7t_serial_start_xmit,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
99 e7t_serial_stop_xmit
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
100 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
101
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
102 #ifdef CYGPKG_IO_SERIAL_ARM_E7T_SERIAL0
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
103 static e7t_serial_info e7t_serial_info0 = {0x07FFd000,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
104 CYGNUM_HAL_INTERRUPT_UART0_TX,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
105 CYGNUM_HAL_INTERRUPT_UART0_RX};
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
106 #if CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE > 0
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
107 static unsigned char e7t_serial_out_buf0[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
108 static unsigned char e7t_serial_in_buf0[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BUFSIZE];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
109
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
110 static SERIAL_CHANNEL_USING_INTERRUPTS(e7t_serial_channel0,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
111 e7t_serial_funs,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
112 e7t_serial_info0,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
113 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BAUD),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
114 CYG_SERIAL_STOP_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
115 CYG_SERIAL_PARITY_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
116 CYG_SERIAL_WORD_LENGTH_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
117 CYG_SERIAL_FLAGS_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
118 &e7t_serial_out_buf0[0], sizeof(e7t_serial_out_buf0),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
119 &e7t_serial_in_buf0[0], sizeof(e7t_serial_in_buf0)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
120 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
121 #else
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
122 static SERIAL_CHANNEL(e7t_serial_channel0,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
123 e7t_serial_funs,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
124 e7t_serial_info0,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
125 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL0_BAUD),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
126 CYG_SERIAL_STOP_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
127 CYG_SERIAL_PARITY_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
128 CYG_SERIAL_WORD_LENGTH_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
129 CYG_SERIAL_FLAGS_DEFAULT
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
130 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
131 #endif
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
132
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
133 DEVTAB_ENTRY(e7t_serial_io0,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
134 CYGDAT_IO_SERIAL_ARM_E7T_SERIAL0_NAME,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
135 0, // Does not depend on a lower level interface
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
136 &cyg_io_serial_devio,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
137 e7t_serial_init,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
138 e7t_serial_lookup, // Serial driver may need initializing
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
139 &e7t_serial_channel0
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
140 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
141 #endif // CYGPKG_IO_SERIAL_ARM_E7T_SERIAL0
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
142
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
143 #ifdef CYGPKG_IO_SERIAL_ARM_E7T_SERIAL1
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
144 static e7t_serial_info e7t_serial_info1 = {0x07FFe000,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
145 CYGNUM_HAL_INTERRUPT_UART1_TX,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
146 CYGNUM_HAL_INTERRUPT_UART1_RX};
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
147 #if CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE > 0
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
148 static unsigned char e7t_serial_out_buf1[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
149 static unsigned char e7t_serial_in_buf1[CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BUFSIZE];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
150
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
151 static SERIAL_CHANNEL_USING_INTERRUPTS(e7t_serial_channel1,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
152 e7t_serial_funs,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
153 e7t_serial_info1,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
154 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BAUD),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
155 CYG_SERIAL_STOP_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
156 CYG_SERIAL_PARITY_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
157 CYG_SERIAL_WORD_LENGTH_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
158 CYG_SERIAL_FLAGS_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
159 &e7t_serial_out_buf1[0], sizeof(e7t_serial_out_buf1),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
160 &e7t_serial_in_buf1[0], sizeof(e7t_serial_in_buf1)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
161 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
162 #else
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
163 static SERIAL_CHANNEL(e7t_serial_channel1,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
164 e7t_serial_funs,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
165 e7t_serial_info1,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
166 CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_E7T_SERIAL1_BAUD),
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
167 CYG_SERIAL_STOP_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
168 CYG_SERIAL_PARITY_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
169 CYG_SERIAL_WORD_LENGTH_DEFAULT,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
170 CYG_SERIAL_FLAGS_DEFAULT
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
171 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
172 #endif
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
173
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
174 DEVTAB_ENTRY(e7t_serial_io1,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
175 CYGDAT_IO_SERIAL_ARM_E7T_SERIAL1_NAME,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
176 0, // Does not depend on a lower level interface
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
177 &cyg_io_serial_devio,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
178 e7t_serial_init,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
179 e7t_serial_lookup, // Serial driver may need initializing
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
180 &e7t_serial_channel1
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
181 );
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
182 #endif // CYGPKG_IO_SERIAL_ARM_E7T_SERIAL1
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
183
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
184 // Internal function to actually configure the hardware to desired baud rate, etc.
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
185 static bool
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
186 e7t_serial_config_port(serial_channel *chan, cyg_serial_info_t *new_config, bool init)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
187 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
188 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
189 volatile struct serial_port *port = (volatile struct serial_port *)e7t_chan->base;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
190 cyg_uint32 word_length = select_word_length[(new_config->word_length)-CYGNUM_SERIAL_WORD_LENGTH_5];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
191 cyg_uint32 stop_bits = select_stop_bits[(new_config->stop)-CYGNUM_SERIAL_STOP_1];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
192 cyg_uint32 parity_mode = select_parity[(new_config->parity)-CYGNUM_SERIAL_PARITY_NONE];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
193 cyg_uint32 baud_divisor = select_baud[(new_config->baud)-CYGNUM_SERIAL_BAUD_50];
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
194 cyg_uint32 res = word_length | stop_bits | parity_mode | ULCON_SCI | ULCON_IROFF;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
195 if ((word_length|stop_bits|parity_mode|baud_divisor) == U_NOT_SUPP) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
196 return false;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
197 };
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
198 port->REG_ULCON = res;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
199 port->REG_UCON = UCON_RXMINT | UCON_RXSIOFF | UCON_TXMINT | UCON_DSROFF | UCON_SBKOFF | UCON_LPBOFF;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
200 port->REG_UBRDIV = baud_divisor;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
201 if (new_config != &chan->config) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
202 chan->config = *new_config;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
203 };
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
204 return true;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
205 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
206
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
207 // Function to initialize the device. Called at bootstrap time.
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
208 static bool
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
209 e7t_serial_init(struct cyg_devtab_entry *tab)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
210 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
211 serial_channel *chan = (serial_channel *)tab->priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
212 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
213 #ifdef CYGDBG_IO_INIT
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
214 diag_printf("E7T SERIAL init - dev: %x.%d.%d\n", e7t_chan->base, e7t_chan->tx_int_num, e7t_chan->rx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
215 #endif
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
216 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
217 if (chan->out_cbuf.len != 0) { // If bufferlength > 0 then interrupts are used for tx
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
218 cyg_drv_interrupt_create(e7t_chan->tx_int_num,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
219 99, // Priority - unused
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
220 (cyg_addrword_t)chan, // Data item passed to interrupt handler
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
221 e7t_serial_tx_ISR,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
222 e7t_serial_tx_DSR,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
223 &e7t_chan->serial_tx_interrupt_handle,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
224 &e7t_chan->serial_tx_interrupt);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
225 cyg_drv_interrupt_attach(e7t_chan->serial_tx_interrupt_handle);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
226 cyg_drv_interrupt_mask(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
227 e7t_chan->tx_enabled = false;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
228 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
229 if (chan->in_cbuf.len != 0) { // If bufferlength > 0 then interrupts are used for rx
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
230 cyg_drv_interrupt_create(e7t_chan->rx_int_num,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
231 99, // Priority - unused
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
232 (cyg_addrword_t)chan, // Data item passed to interrupt handler
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
233 e7t_serial_rx_ISR,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
234 e7t_serial_rx_DSR,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
235 &e7t_chan->serial_rx_interrupt_handle,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
236 &e7t_chan->serial_rx_interrupt);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
237 cyg_drv_interrupt_attach(e7t_chan->serial_rx_interrupt_handle);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
238 cyg_drv_interrupt_unmask(e7t_chan->rx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
239 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
240 e7t_serial_config_port(chan, &chan->config, true);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
241 return true;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
242 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
243
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
244 // This routine is called when the device is "looked" up (i.e. attached)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
245 static Cyg_ErrNo
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
246 e7t_serial_lookup(struct cyg_devtab_entry **tab,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
247 struct cyg_devtab_entry *sub_tab,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
248 const char *name)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
249 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
250 serial_channel *chan = (serial_channel *)(*tab)->priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
251 (chan->callbacks->serial_init)(chan); // Really only required for interrupt driven devices
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
252 return ENOERR;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
253 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
254
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
255 // Send a character to the device output buffer.
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
256 // Return 'true' if character is sent to device
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
257 static bool
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
258 e7t_serial_putc(serial_channel *chan, unsigned char c)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
259 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
260 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
261 volatile struct serial_port *port = (volatile struct serial_port *)e7t_chan->base;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
262
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
263 if (port->REG_USTAT & USTAT_TBE) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
264 // Transmit buffer is empty
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
265 port->REG_UTXBUF = c;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
266 return true;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
267 } else {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
268 // No space
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
269 return false;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
270 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
271 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
272
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
273 // Fetch a character from the device input buffer, waiting if necessary
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
274 static unsigned char
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
275 e7t_serial_getc(serial_channel *chan)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
276 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
277 unsigned char c;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
278 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
279 volatile struct serial_port *port = (volatile struct serial_port *)e7t_chan->base;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
280 while ((port->REG_USTAT & USTAT_RDR) == 0) ; // Wait for char
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
281 c = port->REG_URXBUF;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
282 return c;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
283 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
284
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
285 // Set up the device characteristics; baud rate, etc.
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
286 static Cyg_ErrNo
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
287 e7t_serial_set_config(serial_channel *chan, cyg_uint32 key,
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
288 const void *xbuf, cyg_uint32 *len)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
289 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
290 switch (key) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
291 case CYG_IO_SET_CONFIG_SERIAL_INFO:
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
292 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
293 cyg_serial_info_t *config = (cyg_serial_info_t *)xbuf;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
294 if ( *len < sizeof(cyg_serial_info_t) ) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
295 return -EINVAL;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
296 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
297 *len = sizeof(cyg_serial_info_t);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
298 if ( true != e7t_serial_config_port(chan, config, false) )
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
299 return -EINVAL;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
300 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
301 break;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
302 default:
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
303 return -EINVAL;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
304 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
305 return ENOERR;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
306 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
307
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
308 // Enable the transmitter on the device
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
309 static void
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
310 e7t_serial_start_xmit(serial_channel *chan)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
311 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
312 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
313 e7t_chan->tx_enabled = true;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
314 (chan->callbacks->xmt_char)(chan);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
315 if (e7t_chan->tx_enabled) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
316 cyg_drv_interrupt_unmask(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
317 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
318 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
319
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
320 // Disable the transmitter on the device
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
321 static void
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
322 e7t_serial_stop_xmit(serial_channel *chan)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
323 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
324 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
325 cyg_drv_interrupt_mask(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
326 e7t_chan->tx_enabled = false;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
327 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
328
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
329 // Serial I/O - low level tx interrupt handler (ISR)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
330 static cyg_uint32
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
331 e7t_serial_tx_ISR(cyg_vector_t vector, cyg_addrword_t data)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
332 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
333 serial_channel *chan = (serial_channel *)data;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
334 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
335 cyg_drv_interrupt_mask(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
336 cyg_drv_interrupt_acknowledge(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
337 return CYG_ISR_CALL_DSR; // Cause DSR to be run
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
338 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
339
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
340 // Serial I/O - high level tx interrupt handler (DSR)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
341 static void
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
342 e7t_serial_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
343 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
344 serial_channel *chan = (serial_channel *)data;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
345 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
346 (chan->callbacks->xmt_char)(chan);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
347 if (e7t_chan->tx_enabled) {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
348 cyg_drv_interrupt_unmask(e7t_chan->tx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
349 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
350 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
351
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
352 // Serial I/O - low level rx interrupt handler (ISR)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
353 static cyg_uint32
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
354 e7t_serial_rx_ISR(cyg_vector_t vector, cyg_addrword_t data)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
355 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
356 serial_channel *chan = (serial_channel *)data;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
357 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
358 cyg_drv_interrupt_mask(e7t_chan->rx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
359 cyg_drv_interrupt_acknowledge(e7t_chan->rx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
360 return CYG_ISR_CALL_DSR; // Cause DSR to be run
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
361 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
362
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
363 // Serial I/O - high level rx interrupt handler (DSR)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
364 static void
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
365 e7t_serial_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
366 {
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
367 serial_channel *chan = (serial_channel *)data;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
368 e7t_serial_info *e7t_chan = (e7t_serial_info *)chan->dev_priv;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
369 volatile struct serial_port *port = (volatile struct serial_port *)e7t_chan->base;
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
370 (chan->callbacks->rcv_char)(chan, port->REG_URXBUF);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
371 cyg_drv_interrupt_unmask(e7t_chan->rx_int_num);
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
372 }
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
373
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
374 #endif // CYGPKG_IO_SERIAL_ARM_E7T
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
375
3c206814d866 * src/e7t_serial.c: The UART doesn't generate an interrupt befor the
asl
parents: 210
diff changeset
376 // EOF e7t_serial.c