Contiki-NG
Loading...
Searching...
No Matches
startup-gcc.c
Go to the documentation of this file.
1/*
2 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
3 *
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * Neither the name of Texas Instruments Incorporated nor the names of
17 * its contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32/**
33 * \addtogroup cc2538
34 * @{
35 *
36 * \file
37 * Startup code for the cc2538 chip, to be used when building with gcc
38 */
39#include "contiki.h"
40#include "reg.h"
41#include "flash.h"
42#include "sys-ctrl.h"
43#include "rom-util.h"
44
45#include <stdint.h>
46/*---------------------------------------------------------------------------*/
47extern int main(void);
48/*---------------------------------------------------------------------------*/
49/* System handlers provided here */
50void reset_handler(void);
51void nmi_handler(void);
52void default_handler(void);
53
54/* System Handler and ISR prototypes implemented elsewhere */
55void clock_isr(void); /* SysTick Handler */
56void gpio_port_a_isr(void);
57void gpio_port_b_isr(void);
58void gpio_port_c_isr(void);
59void gpio_port_d_isr(void);
60void rtimer_isr(void);
61void cc2538_rf_rx_tx_isr(void);
62void cc2538_rf_err_isr(void);
63void udma_isr(void);
64void udma_err_isr(void);
65void crypto_isr(void);
66void pka_isr(void);
67
68/* Link in the USB ISR only if USB is enabled */
69#if USB_SERIAL_CONF_ENABLE
70void usb_isr(void);
71#else
72#define usb_isr default_handler
73#endif
74
75/* Likewise for the UART[01] ISRs */
76#if UART_CONF_ENABLE
77void uart0_isr(void);
78void uart1_isr(void);
79#else /* UART_CONF_ENABLE */
80#define uart0_isr default_handler
81#define uart1_isr default_handler
82#endif /* UART_CONF_ENABLE */
83
84/* Boot Loader Backdoor selection */
85#if FLASH_CCA_CONF_BOOTLDR_BACKDOOR
86/* Backdoor enabled */
87
88#if FLASH_CCA_CONF_BOOTLDR_BACKDOOR_ACTIVE_HIGH
89#define FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL FLASH_CCA_BOOTLDR_CFG_ACTIVE_HIGH
90#else
91#define FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL 0
92#endif
93
94#if ((FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN < 0) || (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN > 7))
95#error Invalid boot loader backdoor pin. Please set FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN between 0 and 7 (indicating PA0 - PA7).
96#endif
97
98#define FLASH_CCA_BOOTLDR_CFG (FLASH_CCA_BOOTLDR_CFG_ENABLE \
99 | FLASH_CCA_BOOTLDR_CFG_ACTIVE_LEVEL \
100 | (FLASH_CCA_CONF_BOOTLDR_BACKDOOR_PORT_A_PIN << FLASH_CCA_BOOTLDR_CFG_PORT_A_PIN_S))
101#else
102#define FLASH_CCA_BOOTLDR_CFG FLASH_CCA_BOOTLDR_CFG_DISABLE
103#endif
104/*---------------------------------------------------------------------------*/
105/* Allocate stack space */
106static uint64_t stack[256] __attribute__ ((section(".stack")));
107/*---------------------------------------------------------------------------*/
108__attribute__((__section__(".vectors")))
109void(*const vectors[])(void) =
110{
111 (void (*)(void))((unsigned long)stack + sizeof(stack)), /* Stack pointer */
112 reset_handler, /* Reset handler */
113 nmi_handler, /* The NMI handler */
114 default_handler, /* The hard fault handler */
115 default_handler, /* 4 The MPU fault handler */
116 default_handler, /* 5 The bus fault handler */
117 default_handler, /* 6 The usage fault handler */
118 0, /* 7 Reserved */
119 0, /* 8 Reserved */
120 0, /* 9 Reserved */
121 0, /* 10 Reserved */
122 default_handler, /* 11 SVCall handler */
123 default_handler, /* 12 Debug monitor handler */
124 0, /* 13 Reserved */
125 default_handler, /* 14 The PendSV handler */
126 clock_isr, /* 15 The SysTick handler */
127 gpio_port_a_isr, /* 16 GPIO Port A */
128 gpio_port_b_isr, /* 17 GPIO Port B */
129 gpio_port_c_isr, /* 18 GPIO Port C */
130 gpio_port_d_isr, /* 19 GPIO Port D */
131 0, /* 20 none */
132 uart0_isr, /* 21 UART0 Rx and Tx */
133 uart1_isr, /* 22 UART1 Rx and Tx */
134 default_handler, /* 23 SSI0 Rx and Tx */
135 default_handler, /* 24 I2C Master and Slave */
136 0, /* 25 Reserved */
137 0, /* 26 Reserved */
138 0, /* 27 Reserved */
139 0, /* 28 Reserved */
140 0, /* 29 Reserved */
141 default_handler, /* 30 ADC Sequence 0 */
142 0, /* 31 Reserved */
143 0, /* 32 Reserved */
144 0, /* 33 Reserved */
145 default_handler, /* 34 Watchdog timer, timer 0 */
146 default_handler, /* 35 Timer 0 subtimer A */
147 default_handler, /* 36 Timer 0 subtimer B */
148 default_handler, /* 37 Timer 1 subtimer A */
149 default_handler, /* 38 Timer 1 subtimer B */
150 default_handler, /* 39 Timer 2 subtimer A */
151 default_handler, /* 40 Timer 2 subtimer B */
152 default_handler, /* 41 Analog Comparator 0 */
153 default_handler, /* 42 RFCore Rx/Tx (Alternate) */
154 default_handler, /* 43 RFCore Error (Alternate) */
155 default_handler, /* 44 System Control */
156 default_handler, /* 45 FLASH Control */
157 default_handler, /* 46 AES (Alternate) */
158 default_handler, /* 47 PKA (Alternate) */
159 default_handler, /* 48 SM Timer (Alternate) */
160 default_handler, /* 49 MacTimer (Alternate) */
161 default_handler, /* 50 SSI1 Rx and Tx */
162 default_handler, /* 51 Timer 3 subtimer A */
163 default_handler, /* 52 Timer 3 subtimer B */
164 0, /* 53 Reserved */
165 0, /* 54 Reserved */
166 0, /* 55 Reserved */
167 0, /* 56 Reserved */
168 0, /* 57 Reserved */
169 0, /* 58 Reserved */
170 0, /* 59 Reserved */
171 0, /* 60 Reserved */
172 0, /* 61 Reserved */
173 udma_isr, /* 62 uDMA */
174 udma_err_isr, /* 63 uDMA Error */
175 0, /* 64 64-155 are not in use */
176 0, /* 65 */
177 0, /* 66 */
178 0, /* 67 */
179 0, /* 68 */
180 0, /* 69 */
181 0, /* 70 */
182 0, /* 71 */
183 0, /* 72 */
184 0, /* 73 */
185 0, /* 74 */
186 0, /* 75 */
187 0, /* 76 */
188 0, /* 77 */
189 0, /* 78 */
190 0, /* 79 */
191 0, /* 80 */
192 0, /* 81 */
193 0, /* 82 */
194 0, /* 83 */
195 0, /* 84 */
196 0, /* 85 */
197 0, /* 86 */
198 0, /* 87 */
199 0, /* 88 */
200 0, /* 89 */
201 0, /* 90 */
202 0, /* 91 */
203 0, /* 92 */
204 0, /* 93 */
205 0, /* 94 */
206 0, /* 95 */
207 0, /* 96 */
208 0, /* 97 */
209 0, /* 98 */
210 0, /* 99 */
211 0, /* 100 */
212 0, /* 101 */
213 0, /* 102 */
214 0, /* 103 */
215 0, /* 104 */
216 0, /* 105 */
217 0, /* 106 */
218 0, /* 107 */
219 0, /* 108 */
220 0, /* 109 */
221 0, /* 110 */
222 0, /* 111 */
223 0, /* 112 */
224 0, /* 113 */
225 0, /* 114 */
226 0, /* 115 */
227 0, /* 116 */
228 0, /* 117 */
229 0, /* 118 */
230 0, /* 119 */
231 0, /* 120 */
232 0, /* 121 */
233 0, /* 122 */
234 0, /* 123 */
235 0, /* 124 */
236 0, /* 125 */
237 0, /* 126 */
238 0, /* 127 */
239 0, /* 128 */
240 0, /* 129 */
241 0, /* 130 */
242 0, /* 131 */
243 0, /* 132 */
244 0, /* 133 */
245 0, /* 134 */
246 0, /* 135 */
247 0, /* 136 */
248 0, /* 137 */
249 0, /* 138 */
250 0, /* 139 */
251 0, /* 140 */
252 0, /* 141 */
253 0, /* 142 */
254 0, /* 143 */
255 0, /* 144 */
256 0, /* 145 */
257 0, /* 146 */
258 0, /* 147 */
259 0, /* 148 */
260 0, /* 149 */
261 0, /* 150 */
262 0, /* 151 */
263 0, /* 152 */
264 0, /* 153 */
265 0, /* 154 */
266 0, /* 155 */
267 usb_isr, /* 156 USB */
268 cc2538_rf_rx_tx_isr, /* 157 RFCORE RX/TX */
269 cc2538_rf_err_isr, /* 158 RFCORE Error */
270 crypto_isr, /* 159 AES */
271 pka_isr, /* 160 PKA */
272 rtimer_isr, /* 161 SM Timer */
273 default_handler, /* 162 MACTimer */
274};
275/*---------------------------------------------------------------------------*/
276__attribute__((__section__(".flashcca")))
277const flash_cca_lock_page_t flash_cca_lock_page = {
278 FLASH_CCA_BOOTLDR_CFG, /* Boot loader backdoor configuration */
279 FLASH_CCA_IMAGE_VALID, /* Image valid */
280 &vectors, /* Vector table */
281 /* Unlock all pages and debug */
282 { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
283 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
284 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
285 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
286};
287/*---------------------------------------------------------------------------*/
288/* Linker constructs indicating .data and .bss segment locations */
289extern uint8_t _ldata;
290extern uint8_t _data;
291extern uint8_t _edata;
292extern uint8_t _bss;
293extern uint8_t _ebss;
294/*---------------------------------------------------------------------------*/
295/* Weak interrupt handlers. */
296void
297nmi_handler(void)
298{
299 reset_handler();
300 while(1);
301}
302/*---------------------------------------------------------------------------*/
303void
304default_handler(void)
305{
306 while(1);
307}
308/*---------------------------------------------------------------------------*/
309void
310reset_handler(void)
311{
312 REG(SYS_CTRL_EMUOVR) = 0xFF;
313
314 /* Copy the data segment initializers from flash to SRAM. */
315 rom_util_memcpy(&_data, &_ldata, &_edata - &_data);
316
317 /* Zero-fill the bss segment. */
318 rom_util_memset(&_bss, 0, &_ebss - &_bss);
319
320 /* call the application's entry point. */
321 main();
322
323 /* End here if main () returns */
324 while(1);
325}
326/*---------------------------------------------------------------------------*/
327
328/** @} */
FLASH_CCA_IMAGE_VALID
#define FLASH_CCA_IMAGE_VALID
Indicates valid image in flash.
Definition flash.h:83
SYS_CTRL_EMUOVR
#define SYS_CTRL_EMUOVR
Emulator override.
Definition sys-ctrl.h:96
rtimer_isr
void rtimer_isr(void)
The rtimer ISR.
Definition rtimer-arch.c:130
cc2538_rf_rx_tx_isr
void cc2538_rf_rx_tx_isr(void)
The cc2538 RF RX/TX ISR.
Definition cc2538-rf.c:1201
pka_isr
void pka_isr(void)
The PKA engine ISR.
Definition pka.c:62
crypto_isr
void crypto_isr(void)
The AES/SHA cryptoprocessor ISR.
Definition crypto.c:59
clock_isr
void clock_isr(void)
The clock Interrupt Service Routine.
Definition clock.c:242
cc2538_rf_err_isr
void cc2538_rf_err_isr(void)
The cc2538 RF Error ISR.
Definition cc2538-rf.c:1228
reg.h
Header file with register manipulation macro definitions.
rom-util.h
Header file for the cc2538 ROM utility function library driver.
sys-ctrl.h
Header file for the cc2538 System Control driver.