diff options
author | drath <drath@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2007-04-25 20:15:59 +0000 |
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committer | drath <drath@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2007-04-25 20:15:59 +0000 |
commit | 22bc5194ae101282cf5c30d681d7f4720bec2534 (patch) | |
tree | 9269026fda66ddf15fdfaeaf8acd8433767ea82e /src/jtag/ft2232.c | |
parent | 04dc98916d9acb57e0f5595534151a24ba4dc684 (diff) |
- added support for error handlers to JTAG scan commands (jtag_[plain_][ir|dr]_scan)
- catch apparently broken JTAG IR scan after ARM926EJ-S CP15 operations
- added "arm7_9 dump_etb" command
git-svn-id: svn://svn.berlios.de/openocd/trunk@142 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag/ft2232.c')
-rw-r--r-- | src/jtag/ft2232.c | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/src/jtag/ft2232.c b/src/jtag/ft2232.c index 32b4c927..75faf38d 100644 --- a/src/jtag/ft2232.c +++ b/src/jtag/ft2232.c @@ -402,7 +402,12 @@ int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last) ft2232_expect_read = 0; ft2232_read_pointer = 0; - + + /* return ERROR_OK, unless a jtag_read_buffer returns a failed check + * that wasn't handled by a caller-provided error handler + */ + retval = ERROR_OK; + cmd = first; while (cmd != last) { @@ -415,7 +420,8 @@ int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last) scan_size = jtag_scan_size(cmd->cmd.scan); buffer = calloc(CEIL(scan_size, 8), 1); ft2232_read_scan(type, buffer, scan_size); - jtag_read_buffer(buffer, cmd->cmd.scan); + if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; free(buffer); } break; @@ -427,7 +433,7 @@ int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last) ft2232_buffer_size = 0; - return ERROR_OK; + return retval; } void ft2232_add_pathmove(pathmove_command_t *cmd) @@ -1039,6 +1045,12 @@ int ft2232_execute_queue() int i; int predicted_size = 0; int require_send = 0; + int retval; + + /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check + * that wasn't handled by a caller-provided error handler + */ + retval = ERROR_OK; ft2232_buffer_size = 0; ft2232_expect_read = 0; @@ -1060,7 +1072,8 @@ int ft2232_execute_queue() predicted_size = 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } @@ -1084,7 +1097,8 @@ int ft2232_execute_queue() predicted_size += 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } @@ -1135,7 +1149,8 @@ int ft2232_execute_queue() predicted_size = 3; if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } @@ -1159,7 +1174,8 @@ int ft2232_execute_queue() predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7); if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } @@ -1178,7 +1194,8 @@ int ft2232_execute_queue() DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)"); /* unsent commands before this */ if (first_unsent != cmd) - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; /* current command */ if (cmd->cmd.scan->end_state != -1) @@ -1193,7 +1210,8 @@ int ft2232_execute_queue() else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE) { DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd); - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; require_send = 0; first_unsent = cmd; } @@ -1210,7 +1228,8 @@ int ft2232_execute_queue() #endif break; case JTAG_SLEEP: - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; first_unsent = cmd->next; jtag_sleep(cmd->cmd.sleep->us); #ifdef _DEBUG_JTAG_IO_ @@ -1225,9 +1244,10 @@ int ft2232_execute_queue() } if (require_send > 0) - ft2232_send_and_recv(first_unsent, cmd); + if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK) + retval = ERROR_JTAG_QUEUE_FAILED; - return ERROR_OK; + return retval; } #if BUILD_FT2232_FTD2XX == 1 |