Ensure Cortex-M reset wakes device from sleep (wfi/wfe)
[fw/openocd] / src / target / avr32_ap7k.c
index afac664b51294ff95af384c8734e8f4a32ed6d37..c8f0f8e819bcaede08b7e7d62bc484ac5e8e478d 100644 (file)
@@ -19,6 +19,7 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 #include "avr32_regs.h"
 #include "avr32_ap7k.h"
 
-static char* avr32_core_reg_list[] =
-{
-       "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", 
+static char *avr32_core_reg_list[] = {
+       "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8",
        "r9", "r10", "r11", "r12", "sp", "lr", "pc", "sr"
 };
 
-static struct avr32_core_reg 
-       avr32_core_reg_list_arch_info[AVR32NUMCOREREGS] =
-{
+static struct avr32_core_reg
+       avr32_core_reg_list_arch_info[AVR32NUMCOREREGS] = {
        {0, NULL, NULL},
        {1, NULL, NULL},
        {2, NULL, NULL},
@@ -75,12 +74,9 @@ int avr32_ap7k_save_context(struct target *target)
        if (retval != ERROR_OK)
                return retval;
 
-       for (i = 0; i < AVR32NUMCOREREGS; i++)
-       {
+       for (i = 0; i < AVR32NUMCOREREGS; i++) {
                if (!ap7k->core_cache->reg_list[i].valid)
-               {
                        avr32_read_core_reg(target, i);
-               }
        }
 
        return ERROR_OK;
@@ -93,12 +89,9 @@ int avr32_ap7k_restore_context(struct target *target)
        /* get pointers to arch-specific information */
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
-       for (i = 0; i < AVR32NUMCOREREGS; i++)
-       {
+       for (i = 0; i < AVR32NUMCOREREGS; i++) {
                if (ap7k->core_cache->reg_list[i].dirty)
-               {
                        avr32_write_core_reg(target, i);
-               }
        }
 
        /* write core regs */
@@ -115,7 +108,7 @@ static int avr32_read_core_reg(struct target *target, int num)
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
        if ((num < 0) || (num >= AVR32NUMCOREREGS))
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        reg_value = ap7k->core_regs[num];
        buf_set_u32(ap7k->core_cache->reg_list[num].value, 0, 32, reg_value);
@@ -133,11 +126,11 @@ static int avr32_write_core_reg(struct target *target, int num)
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
        if ((num < 0) || (num >= AVR32NUMCOREREGS))
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        reg_value = buf_get_u32(ap7k->core_cache->reg_list[num].value, 0, 32);
        ap7k->core_regs[num] = reg_value;
-       LOG_DEBUG("write core reg %i value 0x%" PRIx32 "", num , reg_value);
+       LOG_DEBUG("write core reg %i value 0x%" PRIx32 "", num, reg_value);
        ap7k->core_cache->reg_list[num].valid = 1;
        ap7k->core_cache->reg_list[num].dirty = 0;
 
@@ -151,9 +144,7 @@ static int avr32_get_core_reg(struct reg *reg)
        struct target *target = avr32_reg->target;
 
        if (target->state != TARGET_HALTED)
-       {
                return ERROR_TARGET_NOT_HALTED;
-       }
 
        retval = avr32_read_core_reg(target, avr32_reg->num);
 
@@ -167,9 +158,7 @@ static int avr32_set_core_reg(struct reg *reg, uint8_t *buf)
        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;
@@ -190,7 +179,7 @@ static struct reg_cache *avr32_build_reg_cache(struct target *target)
        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 avr32_core_reg *arch_info = 
+       struct avr32_core_reg *arch_info =
                malloc(sizeof(struct avr32_core_reg) * num_regs);
        int i;
 
@@ -202,8 +191,7 @@ static struct reg_cache *avr32_build_reg_cache(struct target *target)
        (*cache_p) = cache;
        ap7k->core_cache = cache;
 
-       for (i = 0; i < num_regs; i++)
-       {
+       for (i = 0; i < num_regs; i++) {
                arch_info[i] = avr32_core_reg_list_arch_info[i];
                arch_info[i].target = target;
                arch_info[i].avr32_common = ap7k;
@@ -253,31 +241,26 @@ static int avr32_ap7k_poll(struct target *target)
                return retval;
 
        /* check for processor halted */
-       if (ds & OCDREG_DS_DBA)
-       {
-               if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET))
-               {
+       if (ds & OCDREG_DS_DBA) {
+               if ((target->state == TARGET_RUNNING) || (target->state == TARGET_RESET)) {
                        target->state = TARGET_HALTED;
 
-                       if ((retval = avr32_ap7k_debug_entry(target)) != ERROR_OK)
+                       retval = avr32_ap7k_debug_entry(target);
+                       if (retval != ERROR_OK)
                                return retval;
 
                        target_call_event_callbacks(target, TARGET_EVENT_HALTED);
-               }
-               else if (target->state == TARGET_DEBUG_RUNNING)
-               {
+               } else if (target->state == TARGET_DEBUG_RUNNING) {
                        target->state = TARGET_HALTED;
 
-                       if ((retval = avr32_ap7k_debug_entry(target)) != ERROR_OK)
+                       retval = avr32_ap7k_debug_entry(target);
+                       if (retval != ERROR_OK)
                                return retval;
 
                        target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED);
                }
-       }
-       else
-       {
+       } else
                target->state = TARGET_RUNNING;
-       }
 
 
        return ERROR_OK;
@@ -288,28 +271,21 @@ static int avr32_ap7k_halt(struct target *target)
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
        LOG_DEBUG("target->state: %s",
-                 target_state_name(target));
+               target_state_name(target));
 
-       if (target->state == TARGET_HALTED)
-       {
+       if (target->state == TARGET_HALTED) {
                LOG_DEBUG("target was already halted");
                return ERROR_OK;
        }
 
        if (target->state == TARGET_UNKNOWN)
-       {
                LOG_WARNING("target was in unknown state when halt was requested");
-       }
 
-       if (target->state == TARGET_RESET)
-       {
-               if ((jtag_get_reset_config() & RESET_SRST_PULLS_TRST) && jtag_get_srst())
-               {
+       if (target->state == TARGET_RESET) {
+               if ((jtag_get_reset_config() & RESET_SRST_PULLS_TRST) && jtag_get_srst()) {
                        LOG_ERROR("can't request a halt while in reset if nSRST pulls nTRST");
                        return ERROR_TARGET_FAILURE;
-               }
-               else
-               {
+               } else {
                        target->debug_reason = DBG_REASON_DBGRQ;
 
                        return ERROR_OK;
@@ -345,21 +321,19 @@ static int avr32_ap7k_soft_reset_halt(struct target *target)
 }
 
 static int avr32_ap7k_resume(struct target *target, int current,
-               uint32_t address, int handle_breakpoints, int debug_execution)
+       uint32_t address, int handle_breakpoints, int debug_execution)
 {
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
        struct breakpoint *breakpoint = NULL;
        uint32_t resume_pc;
        int retval;
 
-       if (target->state != TARGET_HALTED)
-       {
+       if (target->state != TARGET_HALTED) {
                LOG_WARNING("target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
 
-       if (!debug_execution)
-       {
+       if (!debug_execution) {
                target_free_all_working_areas(target);
                /*
                avr32_ap7k_enable_breakpoints(target);
@@ -368,24 +342,21 @@ static int avr32_ap7k_resume(struct target *target, int current,
        }
 
        /* current = 1: continue on current pc, otherwise continue at <address> */
-       if (!current)
-       {
+       if (!current) {
 #if 0
                if (retval != ERROR_OK)
                        return retval;
 #endif
        }
 
-       resume_pc = 
-               buf_get_u32(ap7k->core_cache->reg_list[AVR32_REG_PC].value, 0, 32);
+       resume_pc = buf_get_u32(ap7k->core_cache->reg_list[AVR32_REG_PC].value, 0, 32);
        avr32_ap7k_restore_context(target);
 
        /* the front-end may request us not to handle breakpoints */
-       if (handle_breakpoints)
-       {
+       if (handle_breakpoints) {
                /* Single step past breakpoint at current address */
-               if ((breakpoint = breakpoint_find(target, resume_pc)))
-               {
+               breakpoint = breakpoint_find(target, resume_pc);
+               if (breakpoint) {
                        LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 "", breakpoint->address);
 #if 0
                        avr32_ap7k_unset_breakpoint(target, breakpoint);
@@ -418,14 +389,11 @@ static int avr32_ap7k_resume(struct target *target, int current,
        /* registers are now invalid */
        register_cache_invalidate(ap7k->core_cache);
 
-       if (!debug_execution)
-       {
+       if (!debug_execution) {
                target->state = TARGET_RUNNING;
                target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
                LOG_DEBUG("target resumed at 0x%" PRIx32 "", resume_pc);
-       }
-       else
-       {
+       } else {
                target->state = TARGET_DEBUG_RUNNING;
                target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED);
                LOG_DEBUG("target debug resumed at 0x%" PRIx32 "", resume_pc);
@@ -435,7 +403,7 @@ static int avr32_ap7k_resume(struct target *target, int current,
 }
 
 static int avr32_ap7k_step(struct target *target, int current,
-               uint32_t address, int handle_breakpoints)
+       uint32_t address, int handle_breakpoints)
 {
        LOG_ERROR("%s: implement me", __func__);
 
@@ -450,7 +418,7 @@ static int avr32_ap7k_add_breakpoint(struct target *target, struct breakpoint *b
 }
 
 static int avr32_ap7k_remove_breakpoint(struct target *target,
-               struct breakpoint *breakpoint)
+       struct breakpoint *breakpoint)
 {
        LOG_ERROR("%s: implement me", __func__);
 
@@ -465,7 +433,7 @@ static int avr32_ap7k_add_watchpoint(struct target *target, struct watchpoint *w
 }
 
 static int avr32_ap7k_remove_watchpoint(struct target *target,
-               struct watchpoint *watchpoint)
+       struct watchpoint *watchpoint)
 {
        LOG_ERROR("%s: implement me", __func__);
 
@@ -473,83 +441,89 @@ static int avr32_ap7k_remove_watchpoint(struct target *target,
 }
 
 static int avr32_ap7k_read_memory(struct target *target, uint32_t address,
-               uint32_t size, uint32_t count, uint8_t *buffer)
+       uint32_t size, uint32_t count, uint8_t *buffer)
 {
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
-       LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "", address, size, count);
+       LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
+               address,
+               size,
+               count);
 
-       if (target->state != TARGET_HALTED)
-       {
+       if (target->state != TARGET_HALTED) {
                LOG_WARNING("target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
 
        /* sanitize arguments */
        if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer))
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        if (((size == 4) && (address & 0x3u)) || ((size == 2) && (address & 0x1u)))
                return ERROR_TARGET_UNALIGNED_ACCESS;
 
-       switch (size)
-       {
-       case 4:
-               return avr32_jtag_read_memory32(&ap7k->jtag, address, count, (uint32_t*)(void *)buffer);
-               break;
-       case 2:
-               return avr32_jtag_read_memory16(&ap7k->jtag, address, count, (uint16_t*)(void *)buffer);
-               break;
-       case 1:
-               return avr32_jtag_read_memory8(&ap7k->jtag, address, count, buffer);
-               break;
-       default:
-               break;
+       switch (size) {
+               case 4:
+                       return avr32_jtag_read_memory32(&ap7k->jtag, address, count,
+                               (uint32_t *)(void *)buffer);
+                       break;
+               case 2:
+                       return avr32_jtag_read_memory16(&ap7k->jtag, address, count,
+                               (uint16_t *)(void *)buffer);
+                       break;
+               case 1:
+                       return avr32_jtag_read_memory8(&ap7k->jtag, address, count, buffer);
+                       break;
+               default:
+                       break;
        }
 
        return ERROR_OK;
 }
 
 static int avr32_ap7k_write_memory(struct target *target, uint32_t address,
-               uint32_t size, uint32_t count, const uint8_t *buffer)
+       uint32_t size, uint32_t count, const uint8_t *buffer)
 {
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
-       LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "", address, size, count);
+       LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
+               address,
+               size,
+               count);
 
-       if (target->state != TARGET_HALTED)
-       {
+       if (target->state != TARGET_HALTED) {
                LOG_WARNING("target not halted");
                return ERROR_TARGET_NOT_HALTED;
        }
 
        /* sanitize arguments */
        if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer))
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        if (((size == 4) && (address & 0x3u)) || ((size == 2) && (address & 0x1u)))
                return ERROR_TARGET_UNALIGNED_ACCESS;
 
-       switch (size)
-       {
-       case 4:
-               return avr32_jtag_write_memory32(&ap7k->jtag, address, count, (uint32_t*)(void *)buffer);
-               break;
-       case 2:
-               return avr32_jtag_write_memory16(&ap7k->jtag, address, count, (uint16_t*)(void *)buffer);
-               break;
-       case 1:
-               return avr32_jtag_write_memory8(&ap7k->jtag, address, count, buffer);
-               break;
-       default:
-               break;
+       switch (size) {
+               case 4:
+                       return avr32_jtag_write_memory32(&ap7k->jtag, address, count,
+                               (uint32_t *)(void *)buffer);
+                       break;
+               case 2:
+                       return avr32_jtag_write_memory16(&ap7k->jtag, address, count,
+                               (uint16_t *)(void *)buffer);
+                       break;
+               case 1:
+                       return avr32_jtag_write_memory8(&ap7k->jtag, address, count, buffer);
+                       break;
+               default:
+                       break;
        }
 
        return ERROR_OK;
 }
 
 static int avr32_ap7k_init_target(struct command_context *cmd_ctx,
-               struct target *target)
+       struct target *target)
 {
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
@@ -561,7 +535,7 @@ static int avr32_ap7k_init_target(struct command_context *cmd_ctx,
 static int avr32_ap7k_target_create(struct target *target, Jim_Interp *interp)
 {
        struct avr32_ap7k_common *ap7k = calloc(1, sizeof(struct
-                               avr32_ap7k_common));
+                       avr32_ap7k_common));
 
        ap7k->common_magic = AP7k_COMMON_MAGIC;
        target->arch_info = ap7k;
@@ -574,21 +548,18 @@ static int avr32_ap7k_examine(struct target *target)
        uint32_t devid, ds;
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
-       if (!target_was_examined(target))
-       {
+       if (!target_was_examined(target)) {
                target_set_examined(target);
                avr32_jtag_nexus_read(&ap7k->jtag, AVR32_OCDREG_DID, &devid);
                LOG_INFO("device id: %08x", devid);
-               avr32_ocd_setbits(&ap7k->jtag, AVR32_OCDREG_DC,OCDREG_DC_DBE);
+               avr32_ocd_setbits(&ap7k->jtag, AVR32_OCDREG_DC, OCDREG_DC_DBE);
                avr32_jtag_nexus_read(&ap7k->jtag, AVR32_OCDREG_DS, &ds);
 
                /* check for processor halted */
-               if (ds & OCDREG_DS_DBA) 
-               {
+               if (ds & OCDREG_DS_DBA) {
                        LOG_INFO("target is halted");
                        target->state = TARGET_HALTED;
-               }
-               else
+               } else
                        target->state = TARGET_RUNNING;
        }
 
@@ -596,7 +567,7 @@ static int avr32_ap7k_examine(struct target *target)
 }
 
 static int avr32_ap7k_bulk_write_memory(struct target *target, uint32_t address,
-               uint32_t count, const uint8_t *buffer)
+       uint32_t count, const uint8_t *buffer)
 {
        LOG_ERROR("%s: implement me", __func__);
 
@@ -609,31 +580,28 @@ int avr32_ap7k_arch_state(struct target *target)
        struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
 
        LOG_USER("target halted due to %s, pc: 0x%8.8" PRIx32 "",
-                debug_reason_name(target), ap7k->jtag.dpc);
+               debug_reason_name(target), ap7k->jtag.dpc);
 
-       return ERROR_OK;
+       return ERROR_OK;
 }
 
 int avr32_ap7k_get_gdb_reg_list(struct target *target, struct reg **reg_list[], int *reg_list_size)
 {
 #if 0
-        /* get pointers to arch-specific information */
-        int i;
-
-        /* include floating point registers */
-        *reg_list_size = AVR32NUMCOREREGS + AVR32NUMFPREGS;
-        *reg_list = malloc(sizeof(struct reg*) * (*reg_list_size));
-
-        for (i = 0; i < AVR32NUMCOREREGS; i++)
-        {
-                (*reg_list)[i] = &mips32->core_cache->reg_list[i];
-        }
-
-        /* add dummy floating points regs */
-        for (i = AVR32NUMCOREREGS; i < (AVR32NUMCOREREGS + AVR32NUMFPREGS); i++)
-        {
-                (*reg_list)[i] = &avr32_ap7k_gdb_dummy_fp_reg;
-        }
+       /* get pointers to arch-specific information */
+       int i;
+
+       /* include floating point registers */
+       *reg_list_size = AVR32NUMCOREREGS + AVR32NUMFPREGS;
+       *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
+
+       for (i = 0; i < AVR32NUMCOREREGS; i++)
+               (*reg_list)[i] = &mips32->core_cache->reg_list[i];
+
+       /* add dummy floating points regs */
+       for (i = AVR32NUMCOREREGS; i < (AVR32NUMCOREREGS + AVR32NUMFPREGS); i++)
+               (*reg_list)[i] = &avr32_ap7k_gdb_dummy_fp_reg;
+
 #endif
 
        LOG_ERROR("%s: implement me", __func__);
@@ -642,8 +610,7 @@ int avr32_ap7k_get_gdb_reg_list(struct target *target, struct reg **reg_list[],
 
 
 
-struct target_type avr32_ap7k_target =
-{
+struct target_type avr32_ap7k_target = {
        .name = "avr32_ap7k",
 
        .poll = avr32_ap7k_poll,
@@ -664,10 +631,10 @@ struct target_type avr32_ap7k_target =
        .read_memory = avr32_ap7k_read_memory,
        .write_memory = avr32_ap7k_write_memory,
        .bulk_write_memory = avr32_ap7k_bulk_write_memory,
-       // .checksum_memory = avr32_ap7k_checksum_memory,
-       // .blank_check_memory = avr32_ap7k_blank_check_memory,
+       /* .checksum_memory = avr32_ap7k_checksum_memory, */
+       /* .blank_check_memory = avr32_ap7k_blank_check_memory, */
 
-       // .run_algorithm = avr32_ap7k_run_algorithm,
+       /* .run_algorithm = avr32_ap7k_run_algorithm, */
 
        .add_breakpoint = avr32_ap7k_add_breakpoint,
        .remove_breakpoint = avr32_ap7k_remove_breakpoint,