#include "config.h"
#endif
-#include "replacements.h"
+#include "interface.h"
+#include "commands.h"
-#include "jtag.h"
-/* system includes */
+#if 1
+#define _DEBUG_GW16012_IO_
+#endif
/* system includes */
-// -ino: 060521-1036
-#ifdef __FreeBSD__
+/* -ino: 060521-1036 */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <sys/types.h>
#include <machine/sysarch.h>
#include <machine/cpufunc.h>
#define ioperm(startport,length,enable)\
#else
-#ifndef _WIN32
-#include <sys/io.h>
-#else
-#include "errno.h"
-#endif /* _WIN32 */
-
-#endif /* __FreeBSD__ */
-
-#include <string.h>
-#include <stdlib.h>
+#endif /* __FreeBSD__, __FreeBSD_kernel__ */
-#include <sys/time.h>
-#include <time.h>
#if PARPORT_USE_PPDEV == 1
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <dev/ppbus/ppi.h>
#include <dev/ppbus/ppbconf.h>
#define PPRSTATUS PPIGSTATUS
#endif
#include <fcntl.h>
#include <sys/ioctl.h>
+#else /* not PARPORT_USE_PPDEV */
+#ifndef _WIN32
+#include <sys/io.h>
+#endif
#endif
-#if PARPORT_USE_GIVEIO == 1
-#if IS_CYGWIN == 1
+#if PARPORT_USE_GIVEIO == 1 && IS_CYGWIN == 1
#include <windows.h>
-#include <errno.h>
-#undef ERROR
-#endif
#endif
-#include "log.h"
/* configuration */
-unsigned long gw16012_port;
+uint16_t gw16012_port;
/* interface variables
*/
-static u8 gw16012_msb = 0x0;
-static u8 gw16012_control_value = 0x0;
+static uint8_t gw16012_msb = 0x0;
+static uint8_t gw16012_control_value = 0x0;
#if PARPORT_USE_PPDEV == 1
static int device_handle;
#endif
-int gw16012_execute_queue(void);
-int gw16012_register_commands(struct command_context_s *cmd_ctx);
-int gw16012_speed(int speed);
-int gw16012_init(void);
-int gw16012_quit(void);
-
-int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-jtag_interface_t gw16012_interface =
-{
- .name = "gw16012",
-
- .execute_queue = gw16012_execute_queue,
-
- .support_pathmove = 0,
-
- .speed = gw16012_speed,
- .register_commands = gw16012_register_commands,
- .init = gw16012_init,
- .quit = gw16012_quit,
-};
-
-int gw16012_register_commands(struct command_context_s *cmd_ctx)
-{
- register_command(cmd_ctx, NULL, "parport_port", gw16012_handle_parport_port_command,
- COMMAND_CONFIG, NULL);
-
- return ERROR_OK;
-}
-
-void gw16012_data(u8 value)
+static void gw16012_data(uint8_t value)
{
value = (value & 0x7f) | gw16012_msb;
gw16012_msb ^= 0x80; /* toggle MSB */
-
+
+#ifdef _DEBUG_GW16012_IO_
+ LOG_DEBUG("%2.2x", value);
+#endif
+
#if PARPORT_USE_PPDEV == 1
ioctl(device_handle, PPWDATA, &value);
#else
- #ifdef __FreeBSD__
+ #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
outb(gw16012_port, value);
#else
outb(value, gw16012_port);
#endif
- #endif
+ #endif
}
-void gw16012_control(u8 value)
+static void gw16012_control(uint8_t value)
{
if (value != gw16012_control_value)
{
gw16012_control_value = value;
+#ifdef _DEBUG_GW16012_IO_
+ LOG_DEBUG("%2.2x", gw16012_control_value);
+#endif
+
#if PARPORT_USE_PPDEV == 1
ioctl(device_handle, PPWCONTROL, &gw16012_control_value);
#else
- #ifdef __FreeBSD__
+ #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
outb(gw16012_port + 2, gw16012_control_value);
#else
outb(gw16012_control_value, gw16012_port + 2);
}
}
-void gw16012_input(u8 *value)
+static void gw16012_input(uint8_t *value)
{
#if PARPORT_USE_PPDEV == 1
ioctl(device_handle, PPRSTATUS, value);
#else
*value = inb(gw16012_port + 1);
#endif
+
+#ifdef _DEBUG_GW16012_IO_
+ LOG_DEBUG("%2.2x", *value);
+#endif
}
/* (1) assert or (0) deassert reset lines */
-void gw16012_reset(int trst, int srst)
+static void gw16012_reset(int trst, int srst)
{
- DEBUG("trst: %i, srst: %i", trst, srst);
+ LOG_DEBUG("trst: %i, srst: %i", trst, srst);
if (trst == 0)
gw16012_control(0x0d);
gw16012_control(0x0b);
}
-int gw16012_speed(int speed)
+static int gw16012_speed(int speed)
{
return ERROR_OK;
}
-void gw16012_end_state(state)
+static void gw16012_end_state(tap_state_t state)
{
- if (tap_move_map[state] != -1)
- end_state = state;
+ if (tap_is_state_stable(state))
+ tap_set_end_state(state);
else
{
- ERROR("BUG: %i is not a valid end state", state);
+ LOG_ERROR("BUG: %i is not a valid end state", state);
exit(-1);
}
}
-void gw16012_state_move(void)
+static void gw16012_state_move(void)
{
- int i=0, tms=0;
- u8 tms_scan = TAP_MOVE(cur_state, end_state);
-
+ int i = 0, tms = 0;
+ uint8_t tms_scan = tap_get_tms_path(tap_get_state(), tap_get_end_state());
+ int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
+
gw16012_control(0x0); /* single-bit mode */
-
- for (i = 0; i < 7; i++)
+
+ for (i = 0; i < tms_count; i++)
{
tms = (tms_scan >> i) & 1;
gw16012_data(tms << 1); /* output next TMS bit */
}
-
- cur_state = end_state;
+
+ tap_set_state(tap_get_end_state());
+}
+
+static void gw16012_path_move(pathmove_command_t *cmd)
+{
+ int num_states = cmd->num_states;
+ int state_count;
+
+ state_count = 0;
+ while (num_states)
+ {
+ gw16012_control(0x0); /* single-bit mode */
+ if (tap_state_transition(tap_get_state(), false) == cmd->path[state_count])
+ {
+ gw16012_data(0x0); /* TCK cycle with TMS low */
+ }
+ else if (tap_state_transition(tap_get_state(), true) == cmd->path[state_count])
+ {
+ gw16012_data(0x2); /* TCK cycle with TMS high */
+ }
+ else
+ {
+ LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(cmd->path[state_count]));
+ exit(-1);
+ }
+
+ tap_set_state(cmd->path[state_count]);
+ state_count++;
+ num_states--;
+ }
+
+ tap_set_end_state(tap_get_state());
}
-void gw16012_runtest(int num_cycles)
+static void gw16012_runtest(int num_cycles)
{
- enum tap_state saved_end_state = end_state;
+ tap_state_t saved_end_state = tap_get_end_state();
int i;
-
- /* only do a state_move when we're not already in RTI */
- if (cur_state != TAP_RTI)
+
+ /* only do a state_move when we're not already in IDLE */
+ if (tap_get_state() != TAP_IDLE)
{
- gw16012_end_state(TAP_RTI);
+ gw16012_end_state(TAP_IDLE);
gw16012_state_move();
}
-
+
for (i = 0; i < num_cycles; i++)
{
gw16012_control(0x0); /* single-bit mode */
gw16012_data(0x0); /* TMS cycle with TMS low */
}
-
+
gw16012_end_state(saved_end_state);
- if (cur_state != end_state)
+ if (tap_get_state() != tap_get_end_state())
gw16012_state_move();
}
-void gw16012_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
+static void gw16012_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size)
{
int bits_left = scan_size;
int bit_count = 0;
- enum tap_state saved_end_state = end_state;
- u8 scan_out, scan_in;
+ tap_state_t saved_end_state = tap_get_end_state();
+ uint8_t scan_out, scan_in;
- if (ir_scan)
- gw16012_end_state(TAP_SI);
- else
- gw16012_end_state(TAP_SD);
+ /* only if we're not already in the correct Shift state */
+ if (!((!ir_scan && (tap_get_state() == TAP_DRSHIFT)) || (ir_scan && (tap_get_state() == TAP_IRSHIFT))))
+ {
+ if (ir_scan)
+ gw16012_end_state(TAP_IRSHIFT);
+ else
+ gw16012_end_state(TAP_DRSHIFT);
- gw16012_state_move();
- gw16012_end_state(saved_end_state);
+ gw16012_state_move();
+ gw16012_end_state(saved_end_state);
+ }
while (type == SCAN_OUT && ((bits_left - 1) > 7))
{
bit_count += 7;
bits_left -= 7;
}
-
+
gw16012_control(0x0); /* single-bit mode */
while (bits_left-- > 0)
{
- u8 tms = 0;
+ uint8_t tms = 0;
+
+ scan_out = buf_get_u32(buffer, bit_count, 1);
+
if (bits_left == 0) /* last bit */
{
- if ((ir_scan && (end_state == TAP_SI))
- || (!ir_scan && (end_state == TAP_SD)))
+ if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
+ || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
{
- tms = 0;
+ tms = 0;
}
else
{
tms = 2;
}
}
-
- scan_out = buf_get_u32(buffer, bit_count, 1);
+
gw16012_data(scan_out | tms);
+
if (type != SCAN_OUT)
{
gw16012_input(&scan_in);
buf_set_u32(buffer, bit_count, 1, ((scan_in & 0x08) >> 3));
}
+
bit_count++;
}
- if (!((ir_scan && (end_state == TAP_SI)) ||
- (!ir_scan && (end_state == TAP_SD))))
+ if (!((ir_scan && (tap_get_end_state() == TAP_IRSHIFT)) ||
+ (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT))))
{
gw16012_data(0x0);
if (ir_scan)
- cur_state = TAP_PI;
+ tap_set_state(TAP_IRPAUSE);
else
- cur_state = TAP_PD;
-
- if (cur_state != end_state)
+ tap_set_state(TAP_DRPAUSE);
+
+ if (tap_get_state() != tap_get_end_state())
gw16012_state_move();
}
}
-int gw16012_execute_queue(void)
+static int gw16012_execute_queue(void)
{
jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
int scan_size;
enum scan_type type;
- u8 *buffer;
-
+ uint8_t *buffer;
+ int retval;
+
+ /* 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;
+
while (cmd)
{
switch (cmd->type)
{
- case JTAG_END_STATE:
-#ifdef _DEBUG_JTAG_IO_
- DEBUG("end_state: %i", cmd->cmd.end_state->end_state);
-#endif
- if (cmd->cmd.end_state->end_state != -1)
- gw16012_end_state(cmd->cmd.end_state->end_state);
- break;
case JTAG_RESET:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+ LOG_DEBUG("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
#endif
if (cmd->cmd.reset->trst == 1)
{
- cur_state = TAP_TLR;
+ tap_set_state(TAP_RESET);
}
gw16012_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
break;
case JTAG_RUNTEST:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
+ LOG_DEBUG("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles, cmd->cmd.runtest->end_state);
#endif
- if (cmd->cmd.runtest->end_state != -1)
- gw16012_end_state(cmd->cmd.runtest->end_state);
+ gw16012_end_state(cmd->cmd.runtest->end_state);
gw16012_runtest(cmd->cmd.runtest->num_cycles);
break;
case JTAG_STATEMOVE:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
+ LOG_DEBUG("statemove end in %i", cmd->cmd.statemove->end_state);
#endif
- if (cmd->cmd.statemove->end_state != -1)
- gw16012_end_state(cmd->cmd.statemove->end_state);
+ gw16012_end_state(cmd->cmd.statemove->end_state);
gw16012_state_move();
break;
+ case JTAG_PATHMOVE:
+#ifdef _DEBUG_JTAG_IO_
+ LOG_DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+#endif
+ gw16012_path_move(cmd->cmd.pathmove);
+ break;
case JTAG_SCAN:
- if (cmd->cmd.scan->end_state != -1)
- gw16012_end_state(cmd->cmd.scan->end_state);
+ gw16012_end_state(cmd->cmd.scan->end_state);
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
type = jtag_scan_type(cmd->cmd.scan);
#ifdef _DEBUG_JTAG_IO_
- DEBUG("%s scan (%i) %i bit end in %i", (cmd->cmd.scan->ir_scan) ? "ir" : "dr",
+ LOG_DEBUG("%s scan (%i) %i bit end in %i", (cmd->cmd.scan->ir_scan) ? "ir" : "dr",
type, scan_size, cmd->cmd.scan->end_state);
#endif
gw16012_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
- return ERROR_JTAG_QUEUE_FAILED;
+ retval = ERROR_JTAG_QUEUE_FAILED;
if (buffer)
free(buffer);
break;
case JTAG_SLEEP:
#ifdef _DEBUG_JTAG_IO_
- DEBUG("sleep", cmd->cmd.sleep->us);
+ LOG_DEBUG("sleep %i", cmd->cmd.sleep->us);
#endif
jtag_sleep(cmd->cmd.sleep->us);
break;
default:
- ERROR("BUG: unknown JTAG command type encountered");
+ LOG_ERROR("BUG: unknown JTAG command type encountered");
exit(-1);
}
cmd = cmd->next;
}
-
- return ERROR_OK;
+
+ return retval;
}
#if PARPORT_USE_GIVEIO == 1
-int gw16012_get_giveio_access()
+static int gw16012_get_giveio_access(void)
{
- HANDLE h;
- OSVERSIONINFO version;
-
- version.dwOSVersionInfoSize = sizeof version;
- if (!GetVersionEx( &version )) {
- errno = EINVAL;
- return -1;
- }
- if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)
- return 0;
-
- h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
- if (h == INVALID_HANDLE_VALUE) {
- errno = ENODEV;
- return -1;
- }
-
- CloseHandle( h );
-
- return 0;
+ HANDLE h;
+ OSVERSIONINFO version;
+
+ version.dwOSVersionInfoSize = sizeof version;
+ if (!GetVersionEx(&version)) {
+ errno = EINVAL;
+ return -1;
+ }
+ if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)
+ return 0;
+
+ h = CreateFile("\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (h == INVALID_HANDLE_VALUE) {
+ errno = ENODEV;
+ return -1;
+ }
+
+ CloseHandle(h);
+
+ return 0;
}
#endif
-int gw16012_init(void)
-{
#if PARPORT_USE_PPDEV == 1
- char buffer[256];
- int i = 0;
- u8 control_port;
-#endif
- u8 status_port;
-
-#if PARPORT_USE_PPDEV == 1
- if (device_handle>0)
- {
- ERROR("device is already opened");
- return ERROR_JTAG_INIT_FAILED;
- }
-#ifdef __FreeBSD__
- DEBUG("opening /dev/ppi%d...", gw16012_port);
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
- snprintf(buffer, 256, "/dev/ppi%d", gw16012_port);
- device_handle = open(buffer, O_WRONLY);
-#else
- DEBUG("opening /dev/parport%d...", gw16012_port);
+#define GW16012_PPDEV_NAME "ppi"
- snprintf(buffer, 256, "/dev/parport%d", gw16012_port);
- device_handle = open(buffer, O_WRONLY);
-#endif
- if (device_handle<0)
+static int gw16012_init_ioctls(void)
+{
+ int temp = 0;
+ temp = ioctl(device_handle, PPCLAIM);
+ if (temp < 0)
{
- ERROR("cannot open device. check it exists and that user read and write rights are set");
+ LOG_ERROR("cannot claim device");
return ERROR_JTAG_INIT_FAILED;
}
- DEBUG("...open");
+ temp = PARPORT_MODE_COMPAT;
+ temp = ioctl(device_handle, PPSETMODE, &temp);
+ if (temp < 0)
+ {
+ LOG_ERROR(" cannot set compatible mode to device");
+ return ERROR_JTAG_INIT_FAILED;
+ }
-#ifndef __FreeBSD__
- i=ioctl(device_handle, PPCLAIM);
- if (i<0)
+ temp = IEEE1284_MODE_COMPAT;
+ temp = ioctl(device_handle, PPNEGOT, &temp);
+ if (temp < 0)
{
- ERROR("cannot claim device");
+ LOG_ERROR("cannot set compatible 1284 mode to device");
return ERROR_JTAG_INIT_FAILED;
}
+ return ERROR_OK;
+}
+#else
+
+#define GW16012_PPDEV_NAME "parport"
- i = PARPORT_MODE_COMPAT;
- i= ioctl(device_handle, PPSETMODE, & i);
- if (i<0)
+static int gw16012_init_ioctls(void)
+{
+ return ERROR_OK;
+}
+
+#endif // defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+
+static int gw16012_init_device(void)
+{
+ const char *device_name = GW16012_PPDEV_NAME;
+ char buffer[256];
+
+ if (device_handle > 0)
{
- ERROR(" cannot set compatible mode to device");
+ LOG_ERROR("device is already opened");
return ERROR_JTAG_INIT_FAILED;
}
- i = IEEE1284_MODE_COMPAT;
- i = ioctl(device_handle, PPNEGOT, & i);
- if (i<0)
+ snprintf(buffer, 256, "/dev/%s%d", device_name, gw16012_port);
+ LOG_DEBUG("opening %s...", buffer);
+
+ device_handle = open(buffer, O_WRONLY);
+ if (device_handle < 0)
{
- ERROR("cannot set compatible 1284 mode to device");
+ LOG_ERROR("cannot open device. check it exists and that user read and write rights are set");
return ERROR_JTAG_INIT_FAILED;
}
-#endif
-#else
+
+ LOG_DEBUG("...open");
+
+ if (gw16012_init_ioctls() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
+ return ERROR_OK;
+}
+
+#else // PARPORT_USE_PPDEV
+
+static int gw16012_init_device(void)
+{
if (gw16012_port == 0)
{
gw16012_port = 0x378;
- WARNING("No gw16012 port specified, using default '0x378' (LPT1)");
+ LOG_WARNING("No gw16012 port specified, using default '0x378' (LPT1)");
}
-
- DEBUG("requesting privileges for parallel port 0x%x...", gw16012_port);
+
+ LOG_DEBUG("requesting privileges for parallel port 0x%lx...", (long unsigned)(gw16012_port));
#if PARPORT_USE_GIVEIO == 1
if (gw16012_get_giveio_access() != 0)
#else /* PARPORT_USE_GIVEIO */
if (ioperm(gw16012_port, 3, 1) != 0)
#endif /* PARPORT_USE_GIVEIO */
{
- ERROR("missing privileges for direct i/o");
+ LOG_ERROR("missing privileges for direct i/o");
return ERROR_JTAG_INIT_FAILED;
}
- DEBUG("...privileges granted");
-#endif /* PARPORT_USE_PPDEV */
-
+ LOG_DEBUG("...privileges granted");
+
+ /* make sure parallel port is in right mode (clear tristate and interrupt */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+ outb(gw16012_port + 2, 0x0);
+#else
+ outb(0x0, gw16012_port + 2);
+#endif
+ return ERROR_OK;
+}
+
+#endif // PARPORT_USE_PPDEV
+
+static int gw16012_init(void)
+{
+ uint8_t status_port;
+
+ if (gw16012_init_device() != ERROR_OK)
+ return ERROR_JTAG_INIT_FAILED;
+
gw16012_input(&status_port);
gw16012_msb = (status_port & 0x80) ^ 0x80;
-
- gw16012_speed(jtag_speed);
+
+ gw16012_speed(jtag_get_speed());
gw16012_reset(0, 0);
-
+
return ERROR_OK;
}
-int gw16012_quit(void)
+static int gw16012_quit(void)
{
-
+
return ERROR_OK;
}
-int gw16012_handle_parport_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(gw16012_handle_parport_port_command)
{
- if (argc == 0)
- return ERROR_OK;
+ if (argc == 1)
+ {
+ /* only if the port wasn't overwritten by cmdline */
+ if (gw16012_port == 0)
+ {
+ COMMAND_PARSE_NUMBER(u16, args[0], gw16012_port);
+ }
+ else
+ {
+ LOG_ERROR("The parport port was already configured!");
+ return ERROR_FAIL;
+ }
+ }
- /* only if the port wasn't overwritten by cmdline */
- if (gw16012_port == 0)
- gw16012_port = strtoul(args[0], NULL, 0);
+ command_print(cmd_ctx, "parport port = %u", gw16012_port);
return ERROR_OK;
}
+
+static int gw16012_register_commands(struct command_context_s *cmd_ctx)
+{
+ register_command(cmd_ctx, NULL, "parport_port",
+ gw16012_handle_parport_port_command, COMMAND_CONFIG,
+ NULL);
+
+ return ERROR_OK;
+}
+
+jtag_interface_t gw16012_interface = {
+ .name = "gw16012",
+ .register_commands = &gw16012_register_commands,
+ .init = &gw16012_init,
+ .quit = &gw16012_quit,
+ .speed = &gw16012_speed,
+ .execute_queue = &gw16012_execute_queue,
+ };
projects / fw / openocd / blobdiff