/* project specific includes */
#include <jtag/interface.h>
+#include <jtag/transport.h>
#include <helper/time_support.h>
#if IS_CYGWIN == 1
static int signalyzer_h_init(void);
static int ktlink_init(void);
static int redbee_init(void);
+static int lisa_l_init(void);
+static int flossjtag_init(void);
/* reset procedures for supported layouts */
static void ftx23_reset(int trst, int srst);
static void turtle_jtag_blink(void);
static void signalyzer_h_blink(void);
static void ktlink_blink(void);
+static void lisa_l_blink(void);
+static void flossjtag_blink(void);
+
+/* common transport support options */
+
+//static const char *jtag_and_swd[] = { "jtag", "swd", NULL };
static const struct ft2232_layout ft2232_layouts[] =
{
.reset = redbee_reset,
.channel = INTERFACE_B,
},
+ { .name = "lisa-l",
+ .init = lisa_l_init,
+ .reset = ftx23_reset,
+ .blink = lisa_l_blink,
+ .channel = INTERFACE_B,
+ },
+ { .name = "flossjtag",
+ .init = flossjtag_init,
+ .reset = ftx23_reset,
+ .blink = flossjtag_blink,
+ },
{ .name = NULL, /* END OF TABLE */ },
};
/** the layout being used with this debug session */
static const struct ft2232_layout *layout;
-/** default bitmask values ddriven on DBUS: TCK/TDI/TDO/TMS and GPIOL(0..4) */
+/** default bitmask values driven on DBUS: TCK/TDI/TDO/TMS and GPIOL(0..4) */
static uint8_t low_output = 0x0;
+
+/* note that direction bit == 1 means that signal is an output */
+
/** default direction bitmask for DBUS: TCK/TDI/TDO/TMS and GPIOL(0..4) */
static uint8_t low_direction = 0x0;
/** default value bitmask for CBUS GPIOH(0..4) */
static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size)
{
- int num_bytes = scan_size / 8;
- int bits_left = scan_size % 8;
- int cur_byte;
+ int num_bytes = (scan_size + 7) / 8;
+ int bits_left = scan_size;
+ int cur_byte = 0;
- for (cur_byte = 0; cur_byte < num_bytes; cur_byte++)
+ while (num_bytes-- > 1)
{
- buffer[cur_byte] = buffer_read();
+ buffer[cur_byte++] = buffer_read();
+ bits_left -= 8;
}
- /* Manage partial byte left from the clock data in/out instructions, if any */
+ buffer[cur_byte] = 0x0;
+
+ /* There is one more partial byte left from the clock data in/out instructions */
if (bits_left > 1)
{
buffer[cur_byte] = buffer_read() >> 1;
}
- else
- {
- buffer[cur_byte] = 0x0;
- }
/* This shift depends on the length of the clock data to tms instruction, insterted at end of the scan, now fixed to a two step transition in ft2232_add_scan */
buffer[cur_byte] = (buffer[cur_byte] | (((buffer_read()) << 1) & 0x80)) >> (8 - bits_left);
}
return ERROR_JTAG_INIT_FAILED;
}
- ft2232_speed(jtag_get_speed());
+ int jtag_speed_var;
+ retval = jtag_get_speed(&jtag_speed_var);
+ if (retval != ERROR_OK)
+ return retval;
+ ft2232_speed(jtag_speed_var);
buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
if ((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK)
/** Updates defaults for DBUS signals: the four JTAG signals
* (TCK, TDI, TDO, TMS) and * the four GPIOL signals.
*/
-static inline void ftx232_init_head(void)
+static inline void ftx232_dbus_init(void)
{
low_output = 0x08;
low_direction = 0x0b;
* the four GPIOL signals. Initialization covers value and direction,
* as customized for each layout.
*/
-static int ftx232_init_tail(void)
+static int ftx232_dbus_write(void)
{
uint8_t buf[3];
uint32_t bytes_written;
* NOTE: This is now _specific_ to the "usbjtag" layout.
* Don't try cram any more layouts into this.
*/
- ftx232_init_head();
+ ftx232_dbus_init();
nTRST = 0x10;
nTRSTnOE = 0x10;
nSRST = 0x40;
nSRSTnOE = 0x40;
- return ftx232_init_tail();
+ return ftx232_dbus_write();
}
static int lm3s811_jtag_init(void)
{
- ftx232_init_head();
+ ftx232_dbus_init();
/* There are multiple revisions of LM3S811 eval boards:
* - Rev B (and older?) boards have no SWO trace support.
low_output = 0x88;
low_direction = 0x8b;
- return ftx232_init_tail();
+ return ftx232_dbus_write();
}
static int icdi_jtag_init(void)
{
- ftx232_init_head();
+ ftx232_dbus_init();
/* Most Luminary eval boards support SWO trace output,
* and should use this "luminary_icdi" layout.
+ *
+ * ADBUS 0..3 are used for JTAG as usual. GPIOs are used
+ * to switch between JTAG and SWD, or switch the ft2232 UART
+ * on the second MPSSE channel/interface (BDBUS)
+ * between (i) the stellaris UART (on Luminary boards)
+ * or (ii) SWO trace data (generic).
+ *
+ * We come up in JTAG mode and may switch to SWD later (with
+ * SWO/trace option if SWD is active).
+ *
+ * DBUS == GPIO-Lx
+ * CBUS == GPIO-Hx
*/
+
+
+#define ICDI_JTAG_EN (1 << 7) /* ADBUS 7 (a.k.a. DBGMOD) */
+#define ICDI_DBG_ENn (1 << 6) /* ADBUS 6 */
+#define ICDI_SRST (1 << 5) /* ADBUS 5 */
+
+
+ /* GPIOs on second channel/interface (UART) ... */
+#define ICDI_SWO_EN (1 << 4) /* BDBUS 4 */
+#define ICDI_TX_SWO (1 << 1) /* BDBUS 1 */
+#define ICDI_VCP_RX (1 << 0) /* BDBUS 0 (to stellaris UART) */
+
nTRST = 0x0;
nTRSTnOE = 0x00;
- nSRST = 0x20;
- nSRSTnOE = 0x20;
- low_output = 0x88;
- low_direction = 0xcb;
+ nSRST = ICDI_SRST;
+ nSRSTnOE = ICDI_SRST;
- return ftx232_init_tail();
+ low_direction |= ICDI_JTAG_EN | ICDI_DBG_ENn;
+ low_output |= ICDI_JTAG_EN;
+ low_output &= ~ICDI_DBG_ENn;
+
+ return ftx232_dbus_write();
}
static int signalyzer_init(void)
{
- ftx232_init_head();
+ ftx232_dbus_init();
nTRST = 0x10;
nTRSTnOE = 0x10;
nSRST = 0x20;
nSRSTnOE = 0x20;
- return ftx232_init_tail();
+ return ftx232_dbus_write();
}
static int axm0432_jtag_init(void)
return ERROR_OK;
}
+static int lisa_l_init(void)
+{
+ uint8_t buf[3];
+ uint32_t bytes_written;
+
+ ftx232_dbus_init();
+
+ nTRST = 0x10;
+ nTRSTnOE = 0x10;
+ nSRST = 0x40;
+ nSRSTnOE = 0x40;
+
+ high_output = 0x00;
+ high_direction = 0x18;
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output;
+ buf[2] = high_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'lisa_l' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ftx232_dbus_write();
+}
+
+static int flossjtag_init(void)
+{
+ uint8_t buf[3];
+ uint32_t bytes_written;
+
+ ftx232_dbus_init();
+
+ nTRST = 0x10;
+ nTRSTnOE = 0x10;
+ nSRST = 0x40;
+ nSRSTnOE = 0x40;
+
+ high_output = 0x00;
+ high_direction = 0x18;
+
+ /* initialize high port */
+ buf[0] = 0x82; /* command "set data bits high byte" */
+ buf[1] = high_output;
+ buf[2] = high_direction;
+ LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
+
+ if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
+ {
+ LOG_ERROR("couldn't initialize FT2232 with 'Floss-JTAG' layout");
+ return ERROR_JTAG_INIT_FAILED;
+ }
+
+ return ftx232_dbus_write();
+}
+
static void olimex_jtag_blink(void)
{
/* Olimex ARM-USB-OCD has a LED connected to ACBUS3
buffer_write(high_direction);
}
+static void lisa_l_blink(void)
+{
+ /*
+ * Lisa/L has two LEDs connected to BCBUS3 and BCBUS4
+ */
+ if (high_output & 0x10)
+ {
+ high_output = 0x08;
+ }
+ else
+ {
+ high_output = 0x10;
+ }
+
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+}
+
+static void flossjtag_blink(void)
+{
+ /*
+ * Floss-JTAG has two LEDs connected to ACBUS3 and ACBUS4
+ */
+ if (high_output & 0x10)
+ {
+ high_output = 0x08;
+ }
+ else
+ {
+ high_output = 0x10;
+ }
+
+ buffer_write(0x82);
+ buffer_write(high_output);
+ buffer_write(high_direction);
+}
+
static int ft2232_quit(void)
{
#if BUILD_FT2232_FTD2XX == 1
buf[1] = high_output;
buf[2] = high_direction;
- if ((retval = ft2232_write(buf, sizeof(buf), &bytes_written)) != ERROR_OK)
+ if (ft2232_write(buf, sizeof(buf), &bytes_written) != ERROR_OK)
{
LOG_ERROR("couldn't initialize Signalyzer-H layout");
return ERROR_JTAG_INIT_FAILED;
.name = "ft2232",
.supported = DEBUG_CAP_TMS_SEQ,
.commands = ft2232_command_handlers,
+ .transports = jtag_only,
.init = ft2232_init,
.quit = ft2232_quit,
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