diff options
Diffstat (limited to 'gdb/ocd.c')
-rw-r--r-- | gdb/ocd.c | 232 |
1 files changed, 132 insertions, 100 deletions
@@ -1,21 +1,22 @@ /* Target communications support for Macraigor Systems' On-Chip Debugging Copyright 1996, 1997 Free Software Foundation, Inc. -This file is part of GDB. + This file is part of GDB. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ #include "defs.h" #include "gdbcore.h" @@ -39,7 +40,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Prototypes for local functions */ static int ocd_read_bytes PARAMS ((CORE_ADDR memaddr, - char *myaddr, int len)); + char *myaddr, int len)); static int ocd_start_remote PARAMS ((PTR dummy)); @@ -59,11 +60,11 @@ static void ocd_interrupt_twice PARAMS ((int signo)); static void interrupt_query PARAMS ((void)); -static unsigned char * ocd_do_command PARAMS ((int cmd, int *statusp, int *lenp)); +static unsigned char *ocd_do_command PARAMS ((int cmd, int *statusp, int *lenp)); static void ocd_put_packet PARAMS ((unsigned char *packet, int pktlen)); -static unsigned char * ocd_get_packet PARAMS ((int cmd, int *pktlen, int timeout)); +static unsigned char *ocd_get_packet PARAMS ((int cmd, int *pktlen, int timeout)); static struct target_ops *current_ops = NULL; @@ -97,21 +98,51 @@ ocd_error (s, error_code) switch (error_code) { - case 0x1: s = "Unknown fault"; break; - case 0x2: s = "Power failed"; break; - case 0x3: s = "Cable disconnected"; break; - case 0x4: s = "Couldn't enter OCD mode"; break; - case 0x5: s = "Target stuck in reset"; break; - case 0x6: s = "OCD hasn't been initialized"; break; - case 0x7: s = "Write verify failed"; break; - case 0x8: s = "Reg buff error (during MPC5xx fp reg read/write)"; break; - case 0x9: s = "Invalid CPU register access attempt failed"; break; - case 0x11: s = "Bus error"; break; - case 0x12: s = "Checksum error"; break; - case 0x13: s = "Illegal command"; break; - case 0x14: s = "Parameter error"; break; - case 0x15: s = "Internal error"; break; - case 0x80: s = "Flash erase error"; break; + case 0x1: + s = "Unknown fault"; + break; + case 0x2: + s = "Power failed"; + break; + case 0x3: + s = "Cable disconnected"; + break; + case 0x4: + s = "Couldn't enter OCD mode"; + break; + case 0x5: + s = "Target stuck in reset"; + break; + case 0x6: + s = "OCD hasn't been initialized"; + break; + case 0x7: + s = "Write verify failed"; + break; + case 0x8: + s = "Reg buff error (during MPC5xx fp reg read/write)"; + break; + case 0x9: + s = "Invalid CPU register access attempt failed"; + break; + case 0x11: + s = "Bus error"; + break; + case 0x12: + s = "Checksum error"; + break; + case 0x13: + s = "Illegal command"; + break; + case 0x14: + s = "Parameter error"; + break; + case 0x15: + s = "Internal error"; + break; + case 0x80: + s = "Flash erase error"; + break; default: sprintf (buf, "Unknown error code %d", error_code); s = buf; @@ -154,11 +185,11 @@ ocd_start_remote (dummy) int speed; enum ocd_target_type target_type; - target_type = *(enum ocd_target_type*)dummy; + target_type = *(enum ocd_target_type *) dummy; immediate_quit = 1; /* Allow user to interrupt it */ - SERIAL_SEND_BREAK (ocd_desc); /* Wake up the wiggler */ + SERIAL_SEND_BREAK (ocd_desc); /* Wake up the wiggler */ speed = 80; /* Divide clock by 4000 */ @@ -189,7 +220,7 @@ ocd_start_remote (dummy) /* Reset the target */ ocd_do_command (OCD_RESET_RUN, &status, &pktlen); -/* ocd_do_command (OCD_RESET, &status, &pktlen);*/ +/* ocd_do_command (OCD_RESET, &status, &pktlen); */ #endif /* If processor is still running, stop it. */ @@ -233,12 +264,12 @@ ocd_start_remote (dummy) print_stack_frame (selected_frame, -1, 1); buf[0] = OCD_LOG_FILE; - buf[1] = 3; /* close existing WIGGLERS.LOG */ + buf[1] = 3; /* close existing WIGGLERS.LOG */ ocd_put_packet (buf, 2); p = ocd_get_packet (buf[0], &pktlen, remote_timeout); buf[0] = OCD_LOG_FILE; - buf[1] = 2; /* append to existing WIGGLERS.LOG */ + buf[1] = 2; /* append to existing WIGGLERS.LOG */ ocd_put_packet (buf, 2); p = ocd_get_packet (buf[0], &pktlen, remote_timeout); @@ -273,28 +304,29 @@ device the OCD device is attached to (e.g. /dev/ttya)."); ocd_dcache = dcache_init (ocd_read_bytes, ocd_write_bytes); - if (strncmp(name,"wiggler",7) == 0) - { - ocd_desc = SERIAL_OPEN ("ocd"); - if (!ocd_desc) - perror_with_name (name); - - buf[0] = OCD_LOG_FILE; - buf[1] = 1; /* open new or overwrite existing WIGGLERS.LOG */ - ocd_put_packet (buf, 2); - p = ocd_get_packet (buf[0], &pktlen, remote_timeout); - - buf[0] = OCD_SET_CONNECTION; - buf[1] = 0x01; /* atoi (name[11]); */ - ocd_put_packet (buf, 2); - p = ocd_get_packet (buf[0], &pktlen, remote_timeout); - } - else /* not using Wigglers.dll */ - { - ocd_desc = SERIAL_OPEN (name); - if (!ocd_desc) - perror_with_name (name); - } + if (strncmp (name, "wiggler", 7) == 0) + { + ocd_desc = SERIAL_OPEN ("ocd"); + if (!ocd_desc) + perror_with_name (name); + + buf[0] = OCD_LOG_FILE; + buf[1] = 1; /* open new or overwrite existing WIGGLERS.LOG */ + ocd_put_packet (buf, 2); + p = ocd_get_packet (buf[0], &pktlen, remote_timeout); + + buf[0] = OCD_SET_CONNECTION; + buf[1] = 0x01; /* atoi (name[11]); */ + ocd_put_packet (buf, 2); + p = ocd_get_packet (buf[0], &pktlen, remote_timeout); + } + else + /* not using Wigglers.dll */ + { + ocd_desc = SERIAL_OPEN (name); + if (!ocd_desc) + perror_with_name (name); + } if (baud_rate != -1) { @@ -334,7 +366,7 @@ device the OCD device is attached to (e.g. /dev/ttya)."); "Couldn't establish connection to remote target\n", RETURN_MASK_ALL)) { - pop_target(); + pop_target (); error ("Failed to connect to OCD."); } } @@ -397,7 +429,7 @@ ocd_interrupt (signo) { /* If this doesn't work, try more severe steps. */ signal (signo, ocd_interrupt_twice); - + if (remote_debug) printf_unfiltered ("ocd_interrupt called\n"); @@ -411,7 +443,7 @@ ocd_interrupt (signo) } } -static void (*ofunc)(); +static void (*ofunc) (); /* The user typed ^C twice. */ static void @@ -419,7 +451,7 @@ ocd_interrupt_twice (signo) int signo; { signal (signo, ofunc); - + interrupt_query (); signal (signo, ocd_interrupt); @@ -601,7 +633,7 @@ ocd_write_bdm_register (bdm_regno, reg) ocd_write_bdm_registers (bdm_regno, buf, 4); } -void +void ocd_prepare_to_store () { } @@ -769,7 +801,7 @@ ocd_xfer_memory (memaddr, myaddr, len, should_write, target) char *myaddr; int len; int should_write; - struct target_ops *target; /* ignored */ + struct target_ops *target; /* ignored */ { return dcache_xfer_memory (ocd_dcache, memaddr, myaddr, len, should_write); } @@ -836,7 +868,7 @@ get_quoted_char (timeout) } } -static unsigned char pkt[256 * 2 + 10], *pktp; /* Worst case */ +static unsigned char pkt[256 * 2 + 10], *pktp; /* Worst case */ static void reset_packet () @@ -934,7 +966,7 @@ ocd_put_packet (buf, len) unsigned char c; unsigned char *packet, *packet_ptr; - packet = alloca (len + 1 + 1); /* packet + SYN + checksum */ + packet = alloca (len + 1 + 1); /* packet + SYN + checksum */ packet_ptr = packet; checksum = 0; @@ -960,7 +992,7 @@ ocd_put_packet (buf, len) first byte of the packet. Subsequent bytes are expected to arrive in time <= remote_timeout. Returns a pointer to a static buffer containing the payload of the packet. *LENP contains the length of the packet. -*/ + */ static unsigned char * stu_get_packet (cmd, lenp, timeout) @@ -972,7 +1004,7 @@ stu_get_packet (cmd, lenp, timeout) static unsigned char buf[256 + 10], *p; unsigned char checksum; - find_packet: +find_packet: ch = get_quoted_char (timeout); @@ -982,7 +1014,7 @@ stu_get_packet (cmd, lenp, timeout) if (ch != RAW_SYN) goto find_packet; - found_syn: /* Found the start of a packet */ +found_syn: /* Found the start of a packet */ p = buf; checksum = 0; @@ -1025,7 +1057,7 @@ stu_get_packet (cmd, lenp, timeout) first byte of the packet. Subsequent bytes are expected to arrive in time <= remote_timeout. Returns a pointer to a static buffer containing the payload of the packet. *LENP contains the length of the packet. -*/ + */ static unsigned char * ocd_get_packet (cmd, lenp, timeout) @@ -1086,7 +1118,7 @@ ocd_get_packet (cmd, lenp, timeout) len = 8; /* write address, value read back */ break; case 0x11: /* Bus error? */ - /* write address, read flag */ + /* write address, read flag */ case 0x15: /* Internal error */ len = 5; /* error code, vector */ break; @@ -1096,43 +1128,43 @@ ocd_get_packet (cmd, lenp, timeout) case 0x0: /* Normal result */ switch (packet[0]) { - case OCD_AYT: /* Are You There? */ - case OCD_SET_BAUD_RATE: /* Set Baud Rate */ - case OCD_INIT: /* Initialize OCD device */ + case OCD_AYT: /* Are You There? */ + case OCD_SET_BAUD_RATE: /* Set Baud Rate */ + case OCD_INIT: /* Initialize OCD device */ case OCD_SET_SPEED: /* Set Speed */ - case OCD_SET_FUNC_CODE: /* Set Function Code */ - case OCD_SET_CTL_FLAGS: /* Set Control Flags */ - case OCD_SET_BUF_ADDR: /* Set Register Buffer Address */ - case OCD_RUN: /* Run Target from PC */ + case OCD_SET_FUNC_CODE: /* Set Function Code */ + case OCD_SET_CTL_FLAGS: /* Set Control Flags */ + case OCD_SET_BUF_ADDR: /* Set Register Buffer Address */ + case OCD_RUN: /* Run Target from PC */ case OCD_RUN_ADDR: /* Run Target from Specified Address */ - case OCD_STOP: /* Stop Target */ + case OCD_STOP: /* Stop Target */ case OCD_RESET_RUN: /* Reset Target and Run */ case OCD_RESET: /* Reset Target and Halt */ - case OCD_STEP: /* Single Step */ - case OCD_WRITE_REGS: /* Write Register */ + case OCD_STEP: /* Single Step */ + case OCD_WRITE_REGS: /* Write Register */ case OCD_WRITE_MEM: /* Write Memory */ case OCD_FILL_MEM: /* Fill Memory */ case OCD_MOVE_MEM: /* Move Memory */ - case OCD_WRITE_INT_MEM: /* Write Internal Memory */ - case OCD_JUMP: /* Jump to Subroutine */ - case OCD_ERASE_FLASH: /* Erase flash memory */ - case OCD_PROGRAM_FLASH: /* Write flash memory */ + case OCD_WRITE_INT_MEM: /* Write Internal Memory */ + case OCD_JUMP: /* Jump to Subroutine */ + case OCD_ERASE_FLASH: /* Erase flash memory */ + case OCD_PROGRAM_FLASH: /* Write flash memory */ case OCD_EXIT_MON: /* Exit the flash programming monitor */ case OCD_ENTER_MON: /* Enter the flash programming monitor */ case OCD_LOG_FILE: /* Make Wigglers.dll save Wigglers.log */ - case OCD_SET_CONNECTION: /* Set type of connection in Wigglers.dll */ + case OCD_SET_CONNECTION: /* Set type of connection in Wigglers.dll */ len = 0; break; - case OCD_GET_VERSION: /* Get Version */ + case OCD_GET_VERSION: /* Get Version */ len = 10; break; - case OCD_GET_STATUS_MASK: /* Get Status Mask */ + case OCD_GET_STATUS_MASK: /* Get Status Mask */ len = 1; break; case OCD_GET_CTRS: /* Get Error Counters */ case OCD_READ_REGS: /* Read Register */ case OCD_READ_MEM: /* Read Memory */ - case OCD_READ_INT_MEM: /* Read Internal Memory */ + case OCD_READ_INT_MEM: /* Read Internal Memory */ len = 257; break; default: @@ -1169,7 +1201,7 @@ ocd_get_packet (cmd, lenp, timeout) if (cmd != -1 && cmd != packet[0]) error ("Response phase error. Got 0x%x, expected 0x%x", packet[0], cmd); - *lenp = packet_ptr - packet - 1; /* Subtract checksum byte */ + *lenp = packet_ptr - packet - 1; /* Subtract checksum byte */ return packet; } #endif @@ -1191,7 +1223,7 @@ ocd_do_command (cmd, statusp, lenp) int logpktlen; buf[0] = cmd; - ocd_put_packet (buf, 1); /* Send command */ + ocd_put_packet (buf, 1); /* Send command */ p = ocd_get_packet (*buf, lenp, remote_timeout); if (*lenp < 3) @@ -1214,12 +1246,12 @@ ocd_do_command (cmd, statusp, lenp) *statusp = status; logbuf[0] = OCD_LOG_FILE; - logbuf[1] = 3; /* close existing WIGGLERS.LOG */ + logbuf[1] = 3; /* close existing WIGGLERS.LOG */ ocd_put_packet (logbuf, 2); ocd_get_packet (logbuf[0], &logpktlen, remote_timeout); logbuf[0] = OCD_LOG_FILE; - logbuf[1] = 2; /* append to existing WIGGLERS.LOG */ + logbuf[1] = 2; /* append to existing WIGGLERS.LOG */ ocd_put_packet (logbuf, 2); ocd_get_packet (logbuf[0], &logpktlen, remote_timeout); @@ -1287,10 +1319,10 @@ ocd_load (args, from_tty) /* This should be defined for each target */ /* But we want to be able to compile this file for some configurations not yet supported fully */ - -#define BDM_BREAKPOINT {0x0,0x0,0x0,0x0} /* For ppc 8xx */ + +#define BDM_BREAKPOINT {0x0,0x0,0x0,0x0} /* For ppc 8xx */ #if 0 -#define BDM_BREAKPOINT {0x4a,0xfa} /* BGND insn used for CPU32 */ +#define BDM_BREAKPOINT {0x4a,0xfa} /* BGND insn used for CPU32 */ #endif /* BDM (at least on CPU32) uses a different breakpoint */ @@ -1388,7 +1420,7 @@ bdm_update_flash_command (args, from_tty) if (!args) error ("Must specify file containing new OCD code."); -/* old_chain = make_cleanup (flash_cleanup, 0);*/ +/* old_chain = make_cleanup (flash_cleanup, 0); */ ocd_do_command (OCD_ENTER_MON, &status, &pktlen); @@ -1405,7 +1437,7 @@ bdm_update_flash_command (args, from_tty) ocd_do_command (OCD_EXIT_MON, &status, &pktlen); -/* discard_cleanups (old_chain);*/ +/* discard_cleanups (old_chain); */ } static void @@ -1430,8 +1462,8 @@ _initialize_remote_ocd () static struct cmd_list_element *ocd_cmd_list = NULL; add_show_from_set (add_set_cmd ("remotetimeout", no_class, - var_integer, (char *)&remote_timeout, - "Set timeout value for remote read.\n", &setlist), + var_integer, (char *) &remote_timeout, + "Set timeout value for remote read.\n", &setlist), &showlist); add_prefix_cmd ("ocd", class_obscure, bdm_command, "", &ocd_cmd_list, "ocd ", @@ -1440,5 +1472,5 @@ _initialize_remote_ocd () add_cmd ("reset", class_obscure, bdm_reset_command, "", &ocd_cmd_list); add_cmd ("restart", class_obscure, bdm_restart_command, "", &ocd_cmd_list); add_cmd ("update-flash", class_obscure, bdm_update_flash_command, "", &ocd_cmd_list); - /* add_cmd ("read-register", class_obscure, bdm_read_register_command, "", &ocd_cmd_list);*/ + /* add_cmd ("read-register", class_obscure, bdm_read_register_command, "", &ocd_cmd_list); */ } |