flash_v2: packages/hal/mips/tx39/current/src/hal

comparison packages/hal/mips/tx39/current/src/hal_diag.c @ 38:e7ba79f6d3a8 ecos-sw-1999-09-23

Merge from eCos master repository on 1999-09-23-20:10:25-BST

author	jlarmour
date	Thu, 23 Sep 1999 19:52:27 +0000
parents	d3fbcdfa1b2f
children	7a6ac9edc838

comparison

equal deleted inserted replaced

-:0b25345c9c69
+:e7ba79f6d3a8
 #include <cyg/hal/hal_io.h>
 /*---------------------------------------------------------------------------*/
 //#define CYG_KERNEL_DIAG_LCD
-#define CYG_KERNEL_DIAG_SERIAL0
+#define CYG_KERNEL_DIAG_SERIAL0 // For ROM start but see immediately below:
-#if defined(CYG_HAL_USE_ROM_MONITOR)
+#if defined(CYG_HAL_USE_ROM_MONITOR_CYGMON)
+#undef CYG_KERNEL_DIAG_SERIAL0
+#undef CYG_KERNEL_DIAG_LCD
+#define CYG_KERNEL_DIAG_CYGMON
 #define CYG_KERNEL_DIAG_GDB
 #endif
 /*---------------------------------------------------------------------------*/
 #endif
 }
 /*---------------------------------------------------------------------------*/
-#ifdef CYG_KERNEL_DIAG_SERIAL0
+#if defined(CYG_KERNEL_DIAG_SERIAL0) || defined(CYG_KERNEL_DIAG_CYGMON)
 #define DIAG_BASE       0xfffff300
 #define DIAG_SLCR       (DIAG_BASE+0x00)
 #define DIAG_SLSR       (DIAG_BASE+0x04)
 #define DIAG_SLDICR     (DIAG_BASE+0x08)
 //hal_diag_led(0x40);
 }
+#if defined(CYG_KERNEL_DIAG_CYGMON)
+void hal_diag_dumb_write_char(char c)
+#else
 void hal_diag_write_char(char c)
+#endif
 {
 #ifdef CYG_KERNEL_DIAG_GDB
 #if 0 //defined(CYG_HAL_USE_ROM_MONITOR)
 typedef void rom_write_fn(char c);
 hal_diag_read_char_serial0( &c1 );
 if( c1 == '+' ) break;
-if( cyg_hal_is_break( &c1 , 1 ) )
+{
-cyg_hal_user_break( NULL );
+extern void cyg_hal_user_break(CYG_ADDRWORD *regs);
+extern cyg_bool cyg_hal_is_break(char *buf, int size);
+if( cyg_hal_is_break( &c1 , 1 ) )
+cyg_hal_user_break( NULL );
+}
 break;
 }
 pos = 0;
 #endif
 #else
 hal_diag_write_char_serial0(c);
 #endif
 }
 void hal_diag_read_char(char *c)
 {
 for(;;)
 {
 break;
 }
 }
-#endif
+#endif // defined(CYG_KERNEL_DIAG_SERIAL0) || defined(CYG_KERNEL_DIAG_CYGMON)
+#if defined(CYG_KERNEL_DIAG_CYGMON) // only
+/* This code has been imported from the BSP module. The definitions have
+* been left as-is, even though there was scope for doing more, to avoid
+* too much drift from the original sources
+*/
+struct bsp_comm_procs {
+void *ch_data;
+void (*__write)(void *ch_data, const char *buf, int len);
+int  (*__read)(void *ch_data, char *buf, int len);
+void (*__putc)(void *ch_data, char ch);
+int  (*__getc)(void *ch_data);
+int  (*__control)(void *ch_data, int func, ...);
+};
+// This is pointed to by entry BSP_NOTVEC_BSP_COMM_PROCS:
+typedef struct {
+int  version;       /* version number for future expansion */
+void *__ictrl_table;
+void *__exc_table;
+void *__dbg_vector;
+void *__kill_vector;
+struct bsp_comm_procs *__console_procs;
+struct bsp_comm_procs *__debug_procs;
+void *__flush_dcache;
+void *__flush_icache;
+void *__cpu_data;
+void *__board_data;
+void *__sysinfo;
+int  (*__set_debug_comm)(int __comm_id);
+int  (*__set_console_comm)(int __comm_id);
+int  (*__set_serial_baud)(int __comm_id, int baud);
+void *__dbg_data;
+void (*__reset)(void);
+int  __console_interrupt_flag;
+} bsp_shared_t;
+/*
+* Core Exception vectors.
+*/
+#define BSP_EXC_INT	    0
+#define BSP_EXC_TLBMOD	    1
+#define BSP_EXC_TLBL	    2
+#define BSP_EXC_TLBS	    3
+#define BSP_EXC_ADEL	    4
+#define BSP_EXC_ADES	    5
+#define BSP_EXC_IBE         6
+#define BSP_EXC_DBE         7
+#define BSP_EXC_SYSCALL     8
+#define BSP_EXC_BREAK       9
+#define BSP_EXC_ILL        10
+#define BSP_EXC_CPU        11
+#define BSP_EXC_OV         12
+#define BSP_EXC_TRAP       13
+#define BSP_EXC_VCEI       14
+#define BSP_EXC_FPE        15
+#define BSP_EXC_RSV16      16
+#define BSP_EXC_RSV17      17
+#define BSP_EXC_RSV18      18
+#define BSP_EXC_RSV19      19
+#define BSP_EXC_RSV20      20
+#define BSP_EXC_RSV21      21
+#define BSP_EXC_RSV22      22
+#define BSP_EXC_WATCH      23
+#define BSP_EXC_RSV24      24
+#define BSP_EXC_RSV25      25
+#define BSP_EXC_RSV26      26
+#define BSP_EXC_RSV27      27
+#define BSP_EXC_RSV28      28
+#define BSP_EXC_RSV29      29
+#define BSP_EXC_RSV30      30
+#define BSP_EXC_VCED       31
+/* tx39 debug exception */
+#define BSP_EXC_DEBUG      32
+#define BSP_EXC_TLB        33
+#define BSP_EXC_NMI        34
+/*
+* Hack for eCos on tx39 to set an async breakpoint.
+*/
+#define BSP_VEC_BP_HOOK    35
+#define BSP_EXC_XTLB	   36
+#define BSP_EXC_CACHE	   37
+#define BSP_MAX_EXCEPTIONS 38
+/*
+* Another hack for tx39 eCos compatibility.
+*/
+#if defined(__CPU_R3900__)
+#define BSP_VEC_MT_DEBUG   15
+#else
+#define BSP_VEC_MT_DEBUG   38
+#endif
+#define BSP_VEC_STUB_ENTRY 39
+#define BSP_VEC_BSPDATA    40
+#define BSP_VEC_MAGIC      41
+#define BSP_VEC_IRQ_CHECK  42
+#define BSP_VEC_PAD        43
+#define NUM_VTAB_ENTRIES   44
+#define BSP_MAGIC_VAL      0x55aa4321
+#define SYS_interrupt 1000
+// These vectors should be called with:
+//
+//  k0 - Exception Number
+#define CYGMON_VECTOR_TABLE_BASE 0x80000100
+#define CYGMON_VECTOR_TABLE ((CYG_ADDRESS *)CYGMON_VECTOR_TABLE_BASE)
+#if 0 // UNUSED
+static int
+hal_bsp_set_debug_comm(int arg)
+{
+bsp_shared_t *shared;
+shared = (bsp_shared_t *)
+(CYGMON_VECTOR_TABLE[ BSP_VEC_BSPDATA ]);
+if (0 != shared->__set_debug_comm) {
+return (*(shared->__set_debug_comm))(arg);
+}
+return 0;
+}
+static int
+hal_bsp_set_console_comm(int arg)
+{
+bsp_shared_t *shared;
+shared = (bsp_shared_t *)
+(CYGMON_VECTOR_TABLE[ BSP_VEC_BSPDATA ]);
+if (0 != shared->__set_console_comm) {
+return (*(shared->__set_console_comm))(arg);
+}
+return 0;
+}
+#endif // 0 UNUSED
+static void bsp_trap(int trap_num);
+static int
+hal_bsp_console_write(const void *p, int len)
+{
+bsp_shared_t *shared;
+struct bsp_comm_procs *com;
+int  magic;
+/*hal_bsp_set_console_comm(0);*/
+/* If this is not a BSP-based CygMon, return 0 */
+magic = (int)(CYGMON_VECTOR_TABLE[ BSP_VEC_MAGIC ]);
+if (magic != BSP_MAGIC_VAL)
+	return 0;
+shared = (bsp_shared_t *)
+(CYGMON_VECTOR_TABLE[ BSP_VEC_BSPDATA ]);
+com = shared->__console_procs;
+if (0 != com) {
+	shared->__console_interrupt_flag = 0;
+com->__write(com->ch_data, p, len);
+	if (shared->__console_interrupt_flag) {
+	    /* debug interrupt; stop here */
+	    bsp_trap(SYS_interrupt);
+	}
+return 1;
+}
+return 0;
+}
+static void
+bsp_trap(int trap_num)
+{
+asm("syscall\n");
+}
+static void
+hal_dumb_serial_write(const char *p, int len)
+{
+int i;
+for ( i = 0 ; i < len; i++ ) {
+	hal_diag_dumb_write_char(p[i]);
+}
+}
+void hal_diag_write_char(char c)
+{
+static char line[100];
+static int pos = 0;
+// No need to send CRs
+if( c == '\r' ) return;
+line[pos++] = c;
+if( c == '\n' || pos == sizeof(line) ) {
+CYG_INTERRUPT_STATE old;
+// Disable interrupts. This prevents GDB trying to interrupt us
+// while we are in the middle of sending a packet. The serial
+// receive interrupt will be seen when we re-enable interrupts
+// later.
+HAL_DISABLE_INTERRUPTS(old);
+if ( ! hal_bsp_console_write( line, pos ) )
+// then there is no function registered, just spew it out serial
+hal_dumb_serial_write( line, pos );
+pos = 0;
+// And re-enable interrupts
+HAL_RESTORE_INTERRUPTS(old);
+}
+}
+int
+hal_diag_irq_check(int vector)
+{
+typedef int irq_check_fn(int irq_nr);
+irq_check_fn *fn = (irq_check_fn *)(CYGMON_VECTOR_TABLE[ BSP_VEC_IRQ_CHECK ]);
+int  magic;
+/* If this is not a BSP-based CygMon, return 0 */
+magic = (int)(CYGMON_VECTOR_TABLE[ BSP_VEC_MAGIC ]);
+if (magic != BSP_MAGIC_VAL)
+	return 0;
+#if defined(CYGPKG_HAL_MIPS_TX3904)
+/* convert vector to BSP irq number */
+if (vector == 16)
+	vector = 2;
+else
+	vector += 3;
+#endif
+return fn(vector);
+}
+#endif // defined(CYG_KERNEL_DIAG_CYGMON) *only*
 /*---------------------------------------------------------------------------*/
 #if defined(CYGPKG_HAL_MIPS_TX39_JMR3904) && defined(CYG_KERNEL_DIAG_LCD)

Mercurial > flash_v2

comparison packages/hal/mips/tx39/current/src/hal_diag.c @ 38:e7ba79f6d3a8 ecos-sw-1999-09-23