4 * Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
5 * Copyright 2000,2001,2002 Bernardo Innocenti <bernie@codewiz.org>
6 * This file is part of DevLib - See devlib/README for information.
9 * \brief General pourpose debug functions.
13 * \author Bernardo Innocenti <bernie@develer.com>
14 * \author Stefano Fedrigo <aleph@develer.com>
19 *#* Revision 1.15 2004/09/14 21:03:46 bernie
20 *#* Use debug.h instead of kdebug.h.
22 *#* Revision 1.14 2004/09/06 21:39:56 bernie
23 *#* Allow partial redefinition of BUS macros.
25 *#* Revision 1.13 2004/08/29 22:04:26 bernie
26 *#* Convert 485 macros to generic BUS macros;
27 *#* kputchar(): New public function.
29 *#* Revision 1.12 2004/08/25 14:12:08 rasky
30 *#* Aggiornato il comment block dei log RCS
32 *#* Revision 1.11 2004/08/24 16:19:08 bernie
33 *#* kputchar(): New public function; Add missing dummy inlines for \!_DEBUG.
35 *#* Revision 1.10 2004/08/04 15:57:50 rasky
36 *#* Cambiata la putchar per kdebug per DSP56k: la nuova funzione e' quella piu' a basso livello (assembly)
38 *#* Revision 1.9 2004/08/02 20:20:29 aleph
39 *#* Merge from project_ks
41 *#* Revision 1.8 2004/07/30 14:26:33 rasky
42 *#* Semplificato l'output dell'ASSERT
43 *#* Aggiunta ASSERT2 con stringa di help opzionalmente disattivabile
45 *#* Revision 1.7 2004/07/30 14:15:53 rasky
46 *#* Nuovo supporto unificato per detect della CPU
48 *#* Revision 1.6 2004/07/18 21:49:28 bernie
49 *#* Add ATmega8 support.
51 *#* Revision 1.5 2004/06/27 15:20:26 aleph
52 *#* Change UNUSED() macro to accept two arguments: type and name;
53 *#* Add macro GNUC_PREREQ to detect GCC version during build;
54 *#* Some spacing cleanups and typo fix
56 *#* Revision 1.4 2004/06/06 18:09:51 bernie
57 *#* Import DSP56800 changes; Print broken wall bricks in hex.
59 *#* Revision 1.3 2004/06/03 11:27:09 bernie
60 *#* Add dual-license information.
62 *#* Revision 1.2 2004/05/23 18:21:53 bernie
63 *#* Trim CVS logs and cleanup header info.
72 #include <mware/formatwr.h> /* for _formatted_write() */
78 #define KDBG_WAIT_READY() do { /*nop*/ } while(0)
79 #define KDBG_WRITE_CHAR(c) putchar((c))
80 #define KDBG_MASK_IRQ(old) do { (void)(old); } while(0)
81 #define KDBG_RESTORE_IRQ(old) do { /*nop*/ } while(0)
82 typedef char kdbg_irqsave_t; /* unused */
85 #define KDBG_WAIT_READY() do {} while (!(SP_STAT & (SPSF_TX_EMPTY | SPSF_TX_INT)))
86 #define KDBG_WRITE_CHAR(c) do { SBUF = (c); } while(0)
87 #define KDBG_MASK_IRQ(old) \
89 (old) = INT_MASK1 & INT1F_TI; \
90 INT_MASK1 &= ~INT1F_TI; \
92 #define KDBG_RESTORE_IRQ(old) do { INT_MASK1 |= (old); }
93 typedef uint16_t kdbg_irqsave_t; /* FIXME: unconfirmed */
97 #if CONFIG_KDEBUG_PORT == 0
100 * Support for special bus policies or external transceivers
101 * on UART0 (to be overridden in "hw.h").
103 #ifndef KDBG_UART0_BUS_INIT
104 #define KDBG_UART0_BUS_INIT do {} while (0)
106 #ifndef KDBG_UART0_BUS_RX
107 #define KDBG_UART0_BUS_RX do {} while (0)
109 #ifndef KDBG_UART0_BUS_TX
110 #define KDBG_UART0_BUS_TX do {} while (0)
113 #if defined(__AVR_ATmega64__)
117 #elif defined(__AVR_ATmega8__)
122 #define KDBG_WAIT_READY() do { loop_until_bit_is_set(USR, UDRE); } while(0)
123 #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(USR, TXC); } while(0)
126 * We must clear the TXC flag before sending a new character to allow
127 * KDBG_WAIT_TXDONE() to work properly.
129 * BUG: if KDBG_WRITE_CHAR() is called after the TXC flag is set by hardware,
130 * a new TXC could be generated after we've cleared it and before the new
131 * character is written to UDR. On a 485 bus, the transceiver will be put
132 * in RX mode while still transmitting the last char.
134 #define KDBG_WRITE_CHAR(c) do { USR |= BV(TXC); UDR = (c); } while(0)
136 #define KDBG_MASK_IRQ(old) do { \
139 UCR &= ~(BV(TXCIE) | BV(UDRIE)); \
143 #define KDBG_RESTORE_IRQ(old) do { \
144 KDBG_WAIT_TXDONE(); \
149 typedef uint8_t kdbg_irqsave_t;
151 #elif CONFIG_KDEBUG_PORT == 1
154 * Support for special bus policies or external transceivers
155 * on UART1 (to be overridden in "hw.h").
157 #ifndef KDBG_UART1_BUS_INIT
158 #define KDBG_UART1_BUS_INIT do {} while (0)
160 #ifndef KDBG_UART1_BUS_RX
161 #define KDBG_UART1_BUS_RX do {} while (0)
163 #ifndef KDBG_UART1_BUS_TX
164 #define KDBG_UART1_BUS_TX do {} while (0)
167 #define KDBG_WAIT_READY() do { loop_until_bit_is_set(UCSR1A, UDRE); } while(0)
168 #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR1A, TXC); } while(0)
169 #define KDBG_WRITE_CHAR(c) do { UCSR1A |= BV(TXC); UDR1 = (c); } while(0)
171 #define KDBG_MASK_IRQ(old) do { \
173 UCSR1B |= BV(TXEN); \
174 UCSR1B &= ~(BV(TXCIE) | BV(UDRIE)); \
178 #define KDBG_RESTORE_IRQ(old) do { \
179 KDBG_WAIT_TXDONE(); \
184 typedef uint8_t kdbg_irqsave_t;
186 #error CONFIG_KDEBUG_PORT should be either 0 or 1
188 #elif defined(__MWERKS__) && CPU_DSP56K
189 /* Debugging go through the JTAG interface. The MSL library already
190 implements the console I/O correctly. */
192 #define KDBG_WAIT_READY() do { } while (0)
193 #define KDBG_WRITE_CHAR(c) __put_char(c, stdout)
194 #define KDBG_MASK_IRQ(old) do { (void)(old); } while (0)
195 #define KDBG_RESTORE_IRQ(old) do { (void)(old); } while (0)
196 typedef uint8_t kdbg_irqsave_t; /* unused */
198 #error Unknown architecture
206 /* Set serial port for 19200bps 8N1 */
207 INT_MASK1 &= ~(INT1F_TI | INT1F_RI);
208 SP_CON = SPCF_RECEIVE_ENABLE | SPCF_MODE1;
209 ioc1_img |= IOC1F_TXD_SEL | IOC1F_EXTINT_SRC;
216 /* Compute the baud rate */
217 uint16_t period = (((CLOCK_FREQ / 16UL) + (CONFIG_KDEBUG_BAUDRATE / 2)) / CONFIG_KDEBUG_BAUDRATE) - 1;
219 #if defined(__AVR_ATmega64__)
220 #if CONFIG_KDEBUG_PORT == 0
221 UBRR0H = (uint8_t)(period>>8);
222 UBRR0L = (uint8_t)period;
224 #elif CONFIG_KDEBUG_PORT == 1
225 UBRR1H = (uint8_t)(period>>8);
226 UBRR1L = (uint8_t)period;
229 #error CONFIG_KDEBUG_PORT must be either 0 or 1
231 #elif defined(__AVR_ATmega8__)
232 UBRRH = (uint8_t)(period>>8);
233 UBRRL = (uint8_t)period;
234 #elif defined(__AVR_ATmega103__)
235 UBRR = (uint8_t)period;
241 #endif /* !CPU_I196 && !CPU_AVR */
243 kputs("\n\n*** DBG START ***\n");
248 * Output one character to the debug console
250 static void __kputchar(char c, UNUSED(void *, unused))
252 /* Poll while serial buffer is still busy */
255 /* Send '\n' as '\r\n' for dumb terminals */
258 KDBG_WRITE_CHAR('\r');
266 void kputchar(char c)
268 /* Mask serial TX intr */
269 kdbg_irqsave_t irqsave;
270 KDBG_MASK_IRQ(irqsave);
274 /* Restore serial TX intr */
275 KDBG_RESTORE_IRQ(irqsave);
279 void PGM_FUNC(kprintf)(const char * PGM_ATTR fmt, ...)
283 /* Mask serial TX intr */
284 kdbg_irqsave_t irqsave;
285 KDBG_MASK_IRQ(irqsave);
288 PGM_FUNC(_formatted_write)(fmt, __kputchar, 0, ap);
291 /* Restore serial TX intr */
292 KDBG_RESTORE_IRQ(irqsave);
296 void PGM_FUNC(kputs)(const char * PGM_ATTR str)
300 /* Mask serial TX intr */
301 kdbg_irqsave_t irqsave;
302 KDBG_MASK_IRQ(irqsave);
304 while ((c = PGM_READ_CHAR(str++)))
307 KDBG_RESTORE_IRQ(irqsave);
311 int PGM_FUNC(__assert)(const char * PGM_ATTR cond, const char * PGM_ATTR file, int line)
313 PGM_FUNC(kputs)(file);
314 PGM_FUNC(kprintf)(PSTR(":%d: Assertion failed: "), line);
315 PGM_FUNC(kputs)(cond);
316 PGM_FUNC(kputs)(PSTR("\n"));
321 int PGM_FUNC(__invalid_ptr)(void *value, const char * PGM_ATTR name, const char * PGM_ATTR file, int line)
323 PGM_FUNC(kputs)(file);
324 PGM_FUNC(kprintf)(PSTR(":%d: Invalid pointer: "), line);
325 PGM_FUNC(kputs)(name);
326 PGM_FUNC(kprintf)(PSTR(" = 0x%x\n"), value);
331 void __init_wall(long *wall, int size)
334 *wall++ = WALL_VALUE;
338 int __check_wall(long *wall, int size, const char *name, const char *file, int line)
342 for (i = 0; i < size; i++)
344 if (wall[i] != WALL_VALUE)
346 kprintf("%s:%d: Wall broken: %s[%d] (0x%p) = 0x%lx\n",
347 file, line, name, i, wall + i, wall[i]);
357 * Dump binary data in hex
359 void kdump(const void *_buf, size_t len)
361 const unsigned char *buf = (const unsigned char *)_buf;
364 kprintf("%02X", *buf++);