1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/****************************************************************************
* arch/arm/src/tiva/tiva_dumpgpio.c
*
* Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <nuttx/arch.h>
#include "up_arch.h"
#include "chip.h"
#include "tiva_gpio.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/* NOTE: this is duplicated in tiva_gpio.c */
static const uintptr_t g_gpiobase[TIVA_NPORTS] =
{
#if TIVA_NPORTS > 0
TIVA_GPIOA_BASE
#endif
#if TIVA_NPORTS > 1
, TIVA_GPIOB_BASE
#endif
#if TIVA_NPORTS > 2
, TIVA_GPIOC_BASE
#endif
#if TIVA_NPORTS > 3
, TIVA_GPIOD_BASE
#endif
#if TIVA_NPORTS > 4
, TIVA_GPIOE_BASE
#endif
#if TIVA_NPORTS > 5
, TIVA_GPIOF_BASE
#endif
#if TIVA_NPORTS > 6
, TIVA_GPIOG_BASE
#endif
#if TIVA_NPORTS > 7
, TIVA_GPIOH_BASE
#endif
#if TIVA_NPORTS > 8
, TIVA_GPIOJ_BASE
#endif
#if TIVA_NPORTS > 9
, TIVA_GPIOK_BASE
#endif
#if TIVA_NPORTS > 10
, TIVA_GPIOL_BASE
#endif
#if TIVA_NPORTS > 11
, TIVA_GPIOM_BASE
#endif
#if TIVA_NPORTS > 12
, TIVA_GPION_BASE
#endif
#if TIVA_NPORTS > 13
, TIVA_GPIOP_BASE
#endif
#if TIVA_NPORTS > 14
, TIVA_GPIOQ_BASE
#endif
};
static const char g_portchar[TIVA_NPORTS] =
{
#if TIVA_NPORTS > 0
'A'
#endif
#if TIVA_NPORTS > 1
, 'B'
#endif
#if TIVA_NPORTS > 2
, 'C'
#endif
#if TIVA_NPORTS > 3
, 'D'
#endif
#if TIVA_NPORTS > 4
, 'E'
#endif
#if TIVA_NPORTS > 5
, 'F'
#endif
#if TIVA_NPORTS > 6
, 'G'
#endif
#if TIVA_NPORTS > 7
, 'H'
#endif
#if TIVA_NPORTS > 8
, 'J'
#endif
#if TIVA_NPORTS > 9
, 'K'
#endif
#if TIVA_NPORTS > 10
, 'L'
#endif
#if TIVA_NPORTS > 11
, 'M'
#endif
#if TIVA_NPORTS > 12
, 'N'
#endif
#if TIVA_NPORTS > 13
, 'P'
#endif
#if TIVA_NPORTS > 14
, 'Q'
#endif
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: tiva_gpiobaseaddress
*
* Description:
* Given a GPIO enumeration value, return the base address of the
* associated GPIO registers.
*
****************************************************************************/
static inline uintptr_t tiva_gpiobaseaddress(int port)
{
return port < TIVA_NPORTS ? g_gpiobase[port] : 0;
}
/****************************************************************************
* Name: tiva_gpioport
*
* Description:
* Given a GPIO enumeration value, return the base address of the
* associated GPIO registers.
*
****************************************************************************/
static inline uint8_t tiva_gpioport(int port)
{
return port < TIVA_NPORTS ? g_portchar[port] : '?';
}
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Function: tiva_dumpgpio
*
* Description:
* Dump all GPIO registers associated with the provided base address
*
****************************************************************************/
int tiva_dumpgpio(uint32_t pinset, const char *msg)
{
#ifdef CONFIG_DEBUG
irqstate_t flags;
unsigned int port = (pinset & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
uintptr_t base;
#ifdef TIVA_SYSCON_RCGCGPIO
uint32_t rcgcgpio;
#else
uint32_t rcgc2;
#endif
bool enabled;
/* Get the base address associated with the GPIO port */
base = tiva_gpiobaseaddress(port);
DEBUGASSERT(base != 0);
/* The following requires exclusive access to the GPIO registers */
flags = irqsave();
#ifdef TIVA_SYSCON_RCGCGPIO
rcgcgpio = getreg32(TIVA_SYSCON_RCGCGPIO);
enabled = ((rcgcgpio & SYSCON_RCGCGPIO(port)) != 0);
#else
rcgc2 = getreg32(TIVA_SYSCON_RCGC2);
enabled = ((rcgc2 & SYSCON_RCGC2_GPIO(port)) != 0);
#endif
lldbg("GPIO%c pinset: %08x base: %08x -- %s\n",
tiva_gpioport(port), pinset, base, msg);
#ifdef TIVA_SYSCON_RCGCGPIO
lldbg("RCGCGPIO: %08x (%s)\n",
rcgcgpio, enabled ? "enabled" : "disabled" );
#else
lldbg(" RCGC2: %08x (%s)\n",
rcgc2, enabled ? "enabled" : "disabled" );
#endif
/* Don't bother with the rest unless the port is enabled */
if (enabled)
{
lldbg(" AFSEL: %02x DEN: %02x DIR: %02x DATA: %02x\n",
getreg32(base + TIVA_GPIO_AFSEL_OFFSET), getreg32(base + TIVA_GPIO_DEN_OFFSET),
getreg32(base + TIVA_GPIO_DIR_OFFSET), getreg32(base + TIVA_GPIO_DATA_OFFSET + 0x3fc));
lldbg(" IS: %02x IBE: %02x IEV: %02x IM: %02x RIS: %08x MIS: %08x\n",
getreg32(base + TIVA_GPIO_IEV_OFFSET), getreg32(base + TIVA_GPIO_IM_OFFSET),
getreg32(base + TIVA_GPIO_RIS_OFFSET), getreg32(base + TIVA_GPIO_MIS_OFFSET));
lldbg(" 2MA: %02x 4MA: %02x 8MA: %02x ODR: %02x PUR %02x PDR: %02x SLR: %02x\n",
getreg32(base + TIVA_GPIO_DR2R_OFFSET), getreg32(base + TIVA_GPIO_DR4R_OFFSET),
getreg32(base + TIVA_GPIO_DR8R_OFFSET), getreg32(base + TIVA_GPIO_ODR_OFFSET),
getreg32(base + TIVA_GPIO_PUR_OFFSET), getreg32(base + TIVA_GPIO_PDR_OFFSET),
getreg32(base + TIVA_GPIO_SLR_OFFSET));
}
irqrestore(flags);
#endif /* CONFIG_DEBUG */
return OK;
}
|
