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 1.14 2004/09/06 21:39:56 bernie
20 *#* Allow partial redefinition of BUS macros.
22 *#* Revision 1.13 2004/08/29 22:04:26 bernie
23 *#* Convert 485 macros to generic BUS macros;
24 *#* kputchar(): New public function.
26 *#* Revision 1.12 2004/08/25 14:12:08 rasky
27 *#* Aggiornato il comment block dei log RCS
29 *#* Revision 1.11 2004/08/24 16:19:08 bernie
30 *#* kputchar(): New public function; Add missing dummy inlines for \!_DEBUG.
32 *#* Revision 1.10 2004/08/04 15:57:50 rasky
33 *#* Cambiata la putchar per kdebug per DSP56k: la nuova funzione e' quella piu' a basso livello (assembly)
35 *#* Revision 1.9 2004/08/02 20:20:29 aleph
36 *#* Merge from project_ks
38 *#* Revision 1.8 2004/07/30 14:26:33 rasky
39 *#* Semplificato l'output dell'ASSERT
40 *#* Aggiunta ASSERT2 con stringa di help opzionalmente disattivabile
42 *#* Revision 1.7 2004/07/30 14:15:53 rasky
43 *#* Nuovo supporto unificato per detect della CPU
45 *#* Revision 1.6 2004/07/18 21:49:28 bernie
46 *#* Add ATmega8 support.
48 *#* Revision 1.5 2004/06/27 15:20:26 aleph
49 *#* Change UNUSED() macro to accept two arguments: type and name;
50 *#* Add macro GNUC_PREREQ to detect GCC version during build;
51 *#* Some spacing cleanups and typo fix
53 *#* Revision 1.4 2004/06/06 18:09:51 bernie
54 *#* Import DSP56800 changes; Print broken wall bricks in hex.
56 *#* Revision 1.3 2004/06/03 11:27:09 bernie
57 *#* Add dual-license information.
59 *#* Revision 1.2 2004/05/23 18:21:53 bernie
60 *#* Trim CVS logs and cleanup header info.
68 #include <mware/formatwr.h> /* for _formatted_write() */
74 #define KDBG_WAIT_READY() do { /*nop*/ } while(0)
75 #define KDBG_WRITE_CHAR(c) putchar((c))
76 #define KDBG_MASK_IRQ(old) do { (void)(old); } while(0)
77 #define KDBG_RESTORE_IRQ(old) do { /*nop*/ } while(0)
78 typedef char kdbg_irqsave_t; /* unused */
81 #define KDBG_WAIT_READY() do {} while (!(SP_STAT & (SPSF_TX_EMPTY | SPSF_TX_INT)))
82 #define KDBG_WRITE_CHAR(c) do { SBUF = (c); } while(0)
83 #define KDBG_MASK_IRQ(old) \
85 (old) = INT_MASK1 & INT1F_TI; \
86 INT_MASK1 &= ~INT1F_TI; \
88 #define KDBG_RESTORE_IRQ(old) do { INT_MASK1 |= (old); }
89 typedef uint16_t kdbg_irqsave_t; /* FIXME: unconfirmed */
93 #if CONFIG_KDEBUG_PORT == 0
96 * Support for special bus policies or external transceivers
97 * on UART0 (to be overridden in "hw.h").
99 #ifndef KDBG_UART0_BUS_INIT
100 #define KDBG_UART0_BUS_INIT do {} while (0)
102 #ifndef KDBG_UART0_BUS_RX
103 #define KDBG_UART0_BUS_RX do {} while (0)
105 #ifndef KDBG_UART0_BUS_TX
106 #define KDBG_UART0_BUS_TX do {} while (0)
109 #if defined(__AVR_ATmega64__)
113 #elif defined(__AVR_ATmega8__)
118 #define KDBG_WAIT_READY() do { loop_until_bit_is_set(USR, UDRE); } while(0)
119 #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(USR, TXC); } while(0)
122 * We must clear the TXC flag before sending a new character to allow
123 * KDBG_WAIT_TXDONE() to work properly.
125 * BUG: if KDBG_WRITE_CHAR() is called after the TXC flag is set by hardware,
126 * a new TXC could be generated after we've cleared it and before the new
127 * character is written to UDR. On a 485 bus, the transceiver will be put
128 * in RX mode while still transmitting the last char.
130 #define KDBG_WRITE_CHAR(c) do { USR |= BV(TXC); UDR = (c); } while(0)
132 #define KDBG_MASK_IRQ(old) do { \
135 UCR &= ~(BV(TXCIE) | BV(UDRIE)); \
139 #define KDBG_RESTORE_IRQ(old) do { \
140 KDBG_WAIT_TXDONE(); \
145 typedef uint8_t kdbg_irqsave_t;
147 #elif CONFIG_KDEBUG_PORT == 1
150 * Support for special bus policies or external transceivers
151 * on UART1 (to be overridden in "hw.h").
153 #ifndef KDBG_UART1_BUS_INIT
154 #define KDBG_UART1_BUS_INIT do {} while (0)
156 #ifndef KDBG_UART1_BUS_RX
157 #define KDBG_UART1_BUS_RX do {} while (0)
159 #ifndef KDBG_UART1_BUS_TX
160 #define KDBG_UART1_BUS_TX do {} while (0)
163 #define KDBG_WAIT_READY() do { loop_until_bit_is_set(UCSR1A, UDRE); } while(0)
164 #define KDBG_WAIT_TXDONE() do { loop_until_bit_is_set(UCSR1A, TXC); } while(0)
165 #define KDBG_WRITE_CHAR(c) do { UCSR1A |= BV(TXC); UDR1 = (c); } while(0)
167 #define KDBG_MASK_IRQ(old) do { \
169 UCSR1B |= BV(TXEN); \
170 UCSR1B &= ~(BV(TXCIE) | BV(UDRIE)); \
174 #define KDBG_RESTORE_IRQ(old) do { \
175 KDBG_WAIT_TXDONE(); \
180 typedef uint8_t kdbg_irqsave_t;
182 #error CONFIG_KDEBUG_PORT should be either 0 or 1
184 #elif defined(__MWERKS__) && CPU_DSP56K
185 /* Debugging go through the JTAG interface. The MSL library already
186 implements the console I/O correctly. */
188 #define KDBG_WAIT_READY() do { } while (0)
189 #define KDBG_WRITE_CHAR(c) __put_char(c, stdout)
190 #define KDBG_MASK_IRQ(old) do { (void)(old); } while (0)
191 #define KDBG_RESTORE_IRQ(old) do { (void)(old); } while (0)
192 typedef uint8_t kdbg_irqsave_t; /* unused */
194 #error Unknown architecture
202 /* Set serial port for 19200bps 8N1 */
203 INT_MASK1 &= ~(INT1F_TI | INT1F_RI);
204 SP_CON = SPCF_RECEIVE_ENABLE | SPCF_MODE1;
205 ioc1_img |= IOC1F_TXD_SEL | IOC1F_EXTINT_SRC;
212 /* Compute the baud rate */
213 uint16_t period = (((CLOCK_FREQ / 16UL) + (CONFIG_KDEBUG_BAUDRATE / 2)) / CONFIG_KDEBUG_BAUDRATE) - 1;
215 #if defined(__AVR_ATmega64__)
216 #if CONFIG_KDEBUG_PORT == 0
217 UBRR0H = (uint8_t)(period>>8);
218 UBRR0L = (uint8_t)period;
220 #elif CONFIG_KDEBUG_PORT == 1
221 UBRR1H = (uint8_t)(period>>8);
222 UBRR1L = (uint8_t)period;
225 #error CONFIG_KDEBUG_PORT must be either 0 or 1
227 #elif defined(__AVR_ATmega8__)
228 UBRRH = (uint8_t)(period>>8);
229 UBRRL = (uint8_t)period;
230 #elif defined(__AVR_ATmega103__)
231 UBRR = (uint8_t)period;
237 #endif /* !CPU_I196 && !CPU_AVR */
239 kputs("\n\n*** DBG START ***\n");
244 * Output one character to the debug console
246 static void __kputchar(char c, UNUSED(void *, unused))
248 /* Poll while serial buffer is still busy */
251 /* Send '\n' as '\r\n' for dumb terminals */
254 KDBG_WRITE_CHAR('\r');
262 void kputchar(char c)
264 /* Mask serial TX intr */
265 kdbg_irqsave_t irqsave;
266 KDBG_MASK_IRQ(irqsave);
270 /* Restore serial TX intr */
271 KDBG_RESTORE_IRQ(irqsave);
275 void PGM_FUNC(kprintf)(const char * PGM_ATTR fmt, ...)
279 /* Mask serial TX intr */
280 kdbg_irqsave_t irqsave;
281 KDBG_MASK_IRQ(irqsave);
284 PGM_FUNC(_formatted_write)(fmt, __kputchar, 0, ap);
287 /* Restore serial TX intr */
288 KDBG_RESTORE_IRQ(irqsave);
292 void PGM_FUNC(kputs)(const char * PGM_ATTR str)
296 /* Mask serial TX intr */
297 kdbg_irqsave_t irqsave;
298 KDBG_MASK_IRQ(irqsave);
300 while ((c = PGM_READ_CHAR(str++)))
303 KDBG_RESTORE_IRQ(irqsave);
307 int PGM_FUNC(__assert)(const char * PGM_ATTR cond, const char * PGM_ATTR file, int line)
309 PGM_FUNC(kputs)(file);
310 PGM_FUNC(kprintf)(PSTR(":%d: Assertion failed: "), line);
311 PGM_FUNC(kputs)(cond);
312 PGM_FUNC(kputs)(PSTR("\n"));
317 int PGM_FUNC(__invalid_ptr)(void *value, const char * PGM_ATTR name, const char * PGM_ATTR file, int line)
319 PGM_FUNC(kputs)(file);
320 PGM_FUNC(kprintf)(PSTR(":%d: Invalid pointer: "), line);
321 PGM_FUNC(kputs)(name);
322 PGM_FUNC(kprintf)(PSTR(" = 0x%x\n"), value);
327 void __init_wall(long *wall, int size)
330 *wall++ = WALL_VALUE;
334 int __check_wall(long *wall, int size, const char *name, const char *file, int line)
338 for (i = 0; i < size; i++)
340 if (wall[i] != WALL_VALUE)
342 kprintf("%s:%d: Wall broken: %s[%d] (0x%p) = 0x%lx\n",
343 file, line, name, i, wall + i, wall[i]);
353 * Dump binary data in hex
355 void kdump(const void *_buf, size_t len)
357 const unsigned char *buf = (const unsigned char *)_buf;
360 kprintf("%02X", *buf++);