* *
* Copyright (C) 2008 by David T.L. Wong *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* This program is free software; you can redistribute it and/or modify *
#endif
#include "mips32.h"
-
+#include "register.h"
char* mips32_core_reg_list[] =
{
"status", "lo", "hi", "badvaddr", "cause", "pc"
};
-mips32_core_reg_t mips32_core_reg_list_arch_info[MIPS32NUMCOREREGS] =
+const char *mips_isa_strings[] =
+{
+ "MIPS32", "MIPS16e"
+};
+
+struct mips32_core_reg mips32_core_reg_list_arch_info[MIPS32NUMCOREREGS] =
{
{0, NULL, NULL},
{1, NULL, NULL},
{29, NULL, NULL},
{30, NULL, NULL},
{31, NULL, NULL},
-
+
{32, NULL, NULL},
{33, NULL, NULL},
{34, NULL, NULL},
#define MIPS32NUMFPREGS 34 + 18
-u8 mips32_gdb_dummy_fp_value[] = {0, 0, 0, 0};
+uint8_t mips32_gdb_dummy_fp_value[] = {0, 0, 0, 0};
-reg_t mips32_gdb_dummy_fp_reg =
+struct reg mips32_gdb_dummy_fp_reg =
{
- "GDB dummy floating-point register", mips32_gdb_dummy_fp_value, 0, 1, 32, NULL, 0, NULL, 0
+ .name = "GDB dummy floating-point register",
+ .value = mips32_gdb_dummy_fp_value,
+ .dirty = 0,
+ .valid = 1,
+ .size = 32,
+ .arch_info = NULL,
};
-int mips32_core_reg_arch_type = -1;
-
-int mips32_get_core_reg(reg_t *reg)
+int mips32_get_core_reg(struct reg *reg)
{
int retval;
- mips32_core_reg_t *mips32_reg = reg->arch_info;
- target_t *target = mips32_reg->target;
- mips32_common_t *mips32_target = target->arch_info;
-
+ struct mips32_core_reg *mips32_reg = reg->arch_info;
+ struct target *target = mips32_reg->target;
+ struct mips32_common *mips32_target = target_to_mips32(target);
+
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
retval = mips32_target->read_core_reg(target, mips32_reg->num);
-
+
return retval;
}
-int mips32_set_core_reg(reg_t *reg, u8 *buf)
+int mips32_set_core_reg(struct reg *reg, uint8_t *buf)
{
- mips32_core_reg_t *mips32_reg = reg->arch_info;
- target_t *target = mips32_reg->target;
- u32 value = buf_get_u32(buf, 0, 32);
-
+ struct mips32_core_reg *mips32_reg = reg->arch_info;
+ struct target *target = mips32_reg->target;
+ uint32_t value = buf_get_u32(buf, 0, 32);
+
if (target->state != TARGET_HALTED)
{
return ERROR_TARGET_NOT_HALTED;
}
-
+
buf_set_u32(reg->value, 0, 32, value);
reg->dirty = 1;
reg->valid = 1;
return ERROR_OK;
}
-int mips32_read_core_reg(struct target_s *target, int num)
+int mips32_read_core_reg(struct target *target, int num)
{
- u32 reg_value;
- mips32_core_reg_t *mips_core_reg;
-
+ uint32_t reg_value;
+ struct mips32_core_reg *mips_core_reg;
+
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
-
+ struct mips32_common *mips32 = target_to_mips32(target);
+
if ((num < 0) || (num >= MIPS32NUMCOREREGS))
return ERROR_INVALID_ARGUMENTS;
buf_set_u32(mips32->core_cache->reg_list[num].value, 0, 32, reg_value);
mips32->core_cache->reg_list[num].valid = 1;
mips32->core_cache->reg_list[num].dirty = 0;
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
-int mips32_write_core_reg(struct target_s *target, int num)
+int mips32_write_core_reg(struct target *target, int num)
{
- u32 reg_value;
- mips32_core_reg_t *mips_core_reg;
-
+ uint32_t reg_value;
+ struct mips32_core_reg *mips_core_reg;
+
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
+ struct mips32_common *mips32 = target_to_mips32(target);
if ((num < 0) || (num >= MIPS32NUMCOREREGS))
return ERROR_INVALID_ARGUMENTS;
-
+
reg_value = buf_get_u32(mips32->core_cache->reg_list[num].value, 0, 32);
mips_core_reg = mips32->core_cache->reg_list[num].arch_info;
mips32->core_regs[num] = reg_value;
- LOG_DEBUG("write core reg %i value 0x%x", num , reg_value);
+ LOG_DEBUG("write core reg %i value 0x%" PRIx32 "", num , reg_value);
mips32->core_cache->reg_list[num].valid = 1;
mips32->core_cache->reg_list[num].dirty = 0;
-
- return ERROR_OK;
-}
-int mips32_invalidate_core_regs(target_t *target)
-{
- /* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
- int i;
-
- for (i = 0; i < mips32->core_cache->num_regs; i++)
- {
- mips32->core_cache->reg_list[i].valid = 0;
- mips32->core_cache->reg_list[i].dirty = 0;
- }
-
return ERROR_OK;
}
-int mips32_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_size)
+int mips32_get_gdb_reg_list(struct target *target, struct reg **reg_list[], int *reg_list_size)
{
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
+ struct mips32_common *mips32 = target_to_mips32(target);
int i;
-
+
/* include floating point registers */
*reg_list_size = MIPS32NUMCOREREGS + MIPS32NUMFPREGS;
- *reg_list = malloc(sizeof(reg_t*) * (*reg_list_size));
-
+ *reg_list = malloc(sizeof(struct reg*) * (*reg_list_size));
+
for (i = 0; i < MIPS32NUMCOREREGS; i++)
{
(*reg_list)[i] = &mips32->core_cache->reg_list[i];
}
-
+
/* add dummy floating points regs */
for (i = MIPS32NUMCOREREGS; i < (MIPS32NUMCOREREGS + MIPS32NUMFPREGS); i++)
{
return ERROR_OK;
}
-int mips32_save_context(target_t *target)
+int mips32_save_context(struct target *target)
{
int i;
-
+
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
- mips_ejtag_t *ejtag_info = &mips32->ejtag_info;
-
+ struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
+
/* read core registers */
mips32_pracc_read_regs(ejtag_info, mips32->core_regs);
-
+
for (i = 0; i < MIPS32NUMCOREREGS; i++)
{
if (!mips32->core_cache->reg_list[i].valid)
mips32->read_core_reg(target, i);
}
}
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
-int mips32_restore_context(target_t *target)
+int mips32_restore_context(struct target *target)
{
int i;
-
+
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
- mips_ejtag_t *ejtag_info = &mips32->ejtag_info;
-
+ struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
+
for (i = 0; i < MIPS32NUMCOREREGS; i++)
{
if (mips32->core_cache->reg_list[i].dirty)
mips32->write_core_reg(target, i);
}
}
-
+
/* write core regs */
mips32_pracc_write_regs(ejtag_info, mips32->core_regs);
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
-int mips32_arch_state(struct target_s *target)
+int mips32_arch_state(struct target *target)
{
- mips32_common_t *mips32 = target->arch_info;
-
- if (mips32->common_magic != MIPS32_COMMON_MAGIC)
- {
- LOG_ERROR("BUG: called for a non-MIPS32 target");
- exit(-1);
- }
-
- LOG_USER("target halted due to %s, pc: 0x%8.8x",
- Jim_Nvp_value2name_simple( nvp_target_debug_reason, target->debug_reason )->name ,
+ struct mips32_common *mips32 = target_to_mips32(target);
+
+ LOG_USER("target halted in %s mode due to %s, pc: 0x%8.8" PRIx32 "",
+ mips_isa_strings[mips32->isa_mode],
+ debug_reason_name(target),
buf_get_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 32));
-
+
return ERROR_OK;
}
-reg_cache_t *mips32_build_reg_cache(target_t *target)
+static const struct reg_arch_type mips32_reg_type = {
+ .get = mips32_get_core_reg,
+ .set = mips32_set_core_reg,
+};
+
+struct reg_cache *mips32_build_reg_cache(struct target *target)
{
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
+ struct mips32_common *mips32 = target_to_mips32(target);
int num_regs = MIPS32NUMCOREREGS;
- reg_cache_t **cache_p = register_get_last_cache_p(&target->reg_cache);
- reg_cache_t *cache = malloc(sizeof(reg_cache_t));
- reg_t *reg_list = malloc(sizeof(reg_t) * num_regs);
- mips32_core_reg_t *arch_info = malloc(sizeof(mips32_core_reg_t) * num_regs);
+ struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache);
+ struct reg_cache *cache = malloc(sizeof(struct reg_cache));
+ struct reg *reg_list = malloc(sizeof(struct reg) * num_regs);
+ struct mips32_core_reg *arch_info = malloc(sizeof(struct mips32_core_reg) * num_regs);
int i;
-
- if (mips32_core_reg_arch_type == -1)
- mips32_core_reg_arch_type = register_reg_arch_type(mips32_get_core_reg, mips32_set_core_reg);
register_init_dummy(&mips32_gdb_dummy_fp_reg);
- /* Build the process context cache */
+ /* Build the process context cache */
cache->name = "mips32 registers";
cache->next = NULL;
cache->reg_list = reg_list;
cache->num_regs = num_regs;
(*cache_p) = cache;
mips32->core_cache = cache;
-
+
for (i = 0; i < num_regs; i++)
{
arch_info[i] = mips32_core_reg_list_arch_info[i];
reg_list[i].value = calloc(1, 4);
reg_list[i].dirty = 0;
reg_list[i].valid = 0;
- reg_list[i].bitfield_desc = NULL;
- reg_list[i].num_bitfields = 0;
- reg_list[i].arch_type = mips32_core_reg_arch_type;
+ reg_list[i].type = &mips32_reg_type;
reg_list[i].arch_info = &arch_info[i];
}
-
+
return cache;
}
-int mips32_init_arch_info(target_t *target, mips32_common_t *mips32, jtag_tap_t *tap)
+int mips32_init_arch_info(struct target *target, struct mips32_common *mips32, struct jtag_tap *tap)
{
target->arch_info = mips32;
mips32->common_magic = MIPS32_COMMON_MAGIC;
-
+
/* has breakpoint/watchpint unit been scanned */
mips32->bp_scanned = 0;
mips32->data_break_list = NULL;
-
+
mips32->ejtag_info.tap = tap;
mips32->read_core_reg = mips32_read_core_reg;
mips32->write_core_reg = mips32_write_core_reg;
-
- return ERROR_OK;
-}
-int mips32_register_commands(struct command_context_s *cmd_ctx)
-{
return ERROR_OK;
}
-int mips32_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info)
+int mips32_run_algorithm(struct target *target, int num_mem_params, struct mem_param *mem_params, int num_reg_params, struct reg_param *reg_params, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
{
/*TODO*/
return ERROR_OK;
}
-int mips32_examine(struct target_s *target)
+int mips32_examine(struct target *target)
{
- mips32_common_t *mips32 = target->arch_info;
-
+ struct mips32_common *mips32 = target_to_mips32(target);
+
if (!target_was_examined(target))
{
target_set_examined(target);
-
+
/* we will configure later */
mips32->bp_scanned = 0;
mips32->num_inst_bpoints = 0;
mips32->num_inst_bpoints_avail = 0;
mips32->num_data_bpoints_avail = 0;
}
-
+
return ERROR_OK;
}
-int mips32_configure_break_unit(struct target_s *target)
+int mips32_configure_break_unit(struct target *target)
{
/* get pointers to arch-specific information */
- mips32_common_t *mips32 = target->arch_info;
+ struct mips32_common *mips32 = target_to_mips32(target);
int retval;
- u32 dcr, bpinfo;
+ uint32_t dcr, bpinfo;
int i;
-
+
if (mips32->bp_scanned)
return ERROR_OK;
-
+
/* get info about breakpoint support */
if ((retval = target_read_u32(target, EJTAG_DCR, &dcr)) != ERROR_OK)
return retval;
-
- if (dcr & (1 << 16))
+
+ if (dcr & EJTAG_DCR_IB)
{
/* get number of inst breakpoints */
if ((retval = target_read_u32(target, EJTAG_IBS, &bpinfo)) != ERROR_OK)
return retval;
-
+
mips32->num_inst_bpoints = (bpinfo >> 24) & 0x0F;
mips32->num_inst_bpoints_avail = mips32->num_inst_bpoints;
- mips32->inst_break_list = calloc(mips32->num_inst_bpoints, sizeof(mips32_comparator_t));
+ mips32->inst_break_list = calloc(mips32->num_inst_bpoints, sizeof(struct mips32_comparator));
for (i = 0; i < mips32->num_inst_bpoints; i++)
{
mips32->inst_break_list[i].reg_address = EJTAG_IBA1 + (0x100 * i);
}
-
+
/* clear IBIS reg */
if ((retval = target_write_u32(target, EJTAG_IBS, 0)) != ERROR_OK)
return retval;
}
-
- if (dcr & (1 << 17))
+
+ if (dcr & EJTAG_DCR_DB)
{
/* get number of data breakpoints */
if ((retval = target_read_u32(target, EJTAG_DBS, &bpinfo)) != ERROR_OK)
return retval;
-
+
mips32->num_data_bpoints = (bpinfo >> 24) & 0x0F;
mips32->num_data_bpoints_avail = mips32->num_data_bpoints;
- mips32->data_break_list = calloc(mips32->num_data_bpoints, sizeof(mips32_comparator_t));
+ mips32->data_break_list = calloc(mips32->num_data_bpoints, sizeof(struct mips32_comparator));
for (i = 0; i < mips32->num_data_bpoints; i++)
{
mips32->data_break_list[i].reg_address = EJTAG_DBA1 + (0x100 * i);
}
-
+
/* clear DBIS reg */
if ((retval = target_write_u32(target, EJTAG_DBS, 0)) != ERROR_OK)
return retval;
}
-
- LOG_DEBUG("DCR 0x%x numinst %i numdata %i", dcr, mips32->num_inst_bpoints, mips32->num_data_bpoints);
-
+
+ LOG_DEBUG("DCR 0x%" PRIx32 " numinst %i numdata %i", dcr, mips32->num_inst_bpoints, mips32->num_data_bpoints);
+
mips32->bp_scanned = 1;
-
+
return ERROR_OK;
}
-int mips32_enable_interrupts(struct target_s *target, int enable)
+int mips32_enable_interrupts(struct target *target, int enable)
{
int retval;
int update = 0;
- u32 dcr;
-
+ uint32_t dcr;
+
/* read debug control register */
if ((retval = target_read_u32(target, EJTAG_DCR, &dcr)) != ERROR_OK)
return retval;
-
+
if (enable)
{
- if (!(dcr & (1<<4)))
+ if (!(dcr & EJTAG_DCR_INTE))
{
/* enable interrupts */
- dcr |= (1<<4);
+ dcr |= EJTAG_DCR_INTE;
update = 1;
}
}
else
{
- if (dcr & (1<<4))
+ if (dcr & EJTAG_DCR_INTE)
{
/* disable interrupts */
- dcr &= ~(1<<4);
+ dcr &= ~EJTAG_DCR_INTE;
update = 1;
}
}
-
+
if (update)
{
if ((retval = target_write_u32(target, EJTAG_DCR, dcr)) != ERROR_OK)
return retval;
}
-
+
return ERROR_OK;
}
projects / fw / openocd / blobdiff