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author | zwelch <zwelch@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-06-17 01:59:59 +0000 |
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committer | zwelch <zwelch@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2009-06-17 01:59:59 +0000 |
commit | e2cacd43681faf0dc8dc7e25c1cefd7c65556e58 (patch) | |
tree | e3071a29d44a28e43455024f15765528ebb09524 /src/jtag | |
parent | 2d0afa36a8fc2ccbfc72e6ea5073b4cd51503c37 (diff) | |
download | riscv-openocd-e2cacd43681faf0dc8dc7e25c1cefd7c65556e58.zip riscv-openocd-e2cacd43681faf0dc8dc7e25c1cefd7c65556e58.tar.gz riscv-openocd-e2cacd43681faf0dc8dc7e25c1cefd7c65556e58.tar.bz2 |
Set svn:eol-style native on ZY1000 minidriver header file.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2261 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag')
-rw-r--r-- | src/jtag/zy1000/jtag_minidriver.h | 420 |
1 files changed, 210 insertions, 210 deletions
diff --git a/src/jtag/zy1000/jtag_minidriver.h b/src/jtag/zy1000/jtag_minidriver.h index 5fafd9e..357dbf3 100644 --- a/src/jtag/zy1000/jtag_minidriver.h +++ b/src/jtag/zy1000/jtag_minidriver.h @@ -1,210 +1,210 @@ -/***************************************************************************
- * Copyright (C) 2007-2008 by Øyvind Harboe *
- * *
- * 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. *
- * *
- * 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 <cyg/hal/hal_io.h> // low level i/o
-
-//#define VERBOSE(a) a
-#define VERBOSE(a)
-
-/* used to test manual mode */
-#define TEST_MANUAL() 0
-
-#if 0
-int diag_printf( const char *fmt, ... );
-#define ZY1000_POKE(a, b) HAL_WRITE_UINT32(a, b); diag_printf("poke 0x%08x,0x%08x\n", a, b)
-#define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b); diag_printf("peek 0x%08x=0x%08x\n", a, b)
-#else
-#define ZY1000_POKE(a, b) HAL_WRITE_UINT32(a, b)
-#define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b)
-#endif
-
-// FIFO empty?
-static __inline__ void waitIdle(void)
-{
- cyg_uint32 empty;
- do
- {
- ZY1000_PEEK(ZY1000_JTAG_BASE+0x10, empty);
- } while ((empty & 0x100)==0);
-}
-
-static __inline__ void waitQueue(void)
-{
-// waitIdle();
-}
-
-static void sampleShiftRegister(void)
-{
-#if 0
- cyg_uint32 dummy;
- waitIdle();
- ZY1000_PEEK(ZY1000_JTAG_BASE+0xc, dummy);
-#endif
-}
-
-/* -O3 will inline this for us */
-static void setCurrentState(enum tap_state state)
-{
- cyg_uint32 a;
- a=state;
- int repeat=0;
- if (state==TAP_RESET)
- {
- // The FPGA nor we know the current state of the CPU TAP
- // controller. This will move it to TAP for sure.
- //
- // 5 should be enough here, 7 is what OpenOCD uses
- repeat=7;
- }
- waitQueue();
- sampleShiftRegister();
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|a);
-
-}
-
-/*
- * Enter state and cause repeat transitions *out* of that state. So if the endState!=state, then
- * the transition from state to endState counts as a transition out of state.
- */
-static __inline__ void shiftValueInner(const enum tap_state state, const enum tap_state endState, int repeat, cyg_uint32 value)
-{
- cyg_uint32 a,b;
- a=state;
- b=endState;
- waitQueue();
- sampleShiftRegister();
- ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value);
-#if 1
-#if TEST_MANUAL()
- if ((state==TAP_DRSHIFT)&&(endState!=TAP_DRSHIFT))
- {
- int i;
- setCurrentState(state);
- for (i=0; i<repeat; i++)
- {
- int tms;
- tms=0;
- if ((i==repeat-1)&&(state!=endState))
- {
- tms=1;
- }
- /* shift out value */
- waitIdle();
- ZY1000_POKE(ZY1000_JTAG_BASE+0x28, (((value>>i)&1)<<1)|tms);
- }
- waitIdle();
- ZY1000_POKE(ZY1000_JTAG_BASE+0x28, 0);
- waitIdle();
- //ZY1000_POKE(ZY1000_JTAG_BASE+0x20, TAP_DRSHIFT); // set this state and things break => expected
- ZY1000_POKE(ZY1000_JTAG_BASE+0x20, TAP_DRPAUSE); // set this and things will work => expected. Not setting this is not sufficient to make things break.
- setCurrentState(endState);
- } else
- {
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b);
- }
-#else
- /* fast version */
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b);
-#endif
-#else
- /* maximum debug version */
- if ((repeat>0)&&((state==TAP_DRSHIFT)||(state==TAP_SI)))
- {
- int i;
- /* sample shift register for every bit. */
- for (i=0; i<repeat-1; i++)
- {
- sampleShiftRegister();
- ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value>>i);
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (1<<8)|(a<<4)|a);
- }
- sampleShiftRegister();
- ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value>>(repeat-1));
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (1<<8)|(a<<4)|b);
- } else
- {
- sampleShiftRegister();
- ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b);
- }
- sampleShiftRegister();
-#endif
-}
-
-
-
-static __inline__ void interface_jtag_add_dr_out_core(jtag_tap_t *target_tap,
- int num_fields,
- const int *num_bits,
- const u32 *value,
- enum tap_state end_state)
-{
- enum tap_state pause_state = TAP_DRSHIFT;
-
- jtag_tap_t *tap, *nextTap;
- for(tap = jtag_tap_next_enabled(NULL); tap!= NULL; tap=nextTap)
- {
- nextTap=jtag_tap_next_enabled(tap);
- if (nextTap==NULL)
- {
- pause_state = end_state;
- }
- if (tap == target_tap)
- {
- int j;
- for (j=0; j<(num_fields-1); j++)
- {
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[j], value[j]);
- }
- shiftValueInner(TAP_DRSHIFT, pause_state, num_bits[j], value[j]);
- } else
- {
- /* program the scan field to 1 bit length, and ignore it's value */
- shiftValueInner(TAP_DRSHIFT, pause_state, 1, 0);
- }
- }
-}
-
-static __inline__ void interface_jtag_add_dr_out(jtag_tap_t *target_tap,
- int num_fields,
- const int *num_bits,
- const u32 *value,
- enum tap_state end_state)
-{
-
- int singletap=(jtag_tap_next_enabled(jtag_tap_next_enabled(NULL))==NULL);
- if ((singletap)&&(num_fields==3))
- {
- /* used by embeddedice_write_reg_inner() */
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[0], value[0]);
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[1], value[1]);
- shiftValueInner(TAP_DRSHIFT, end_state, num_bits[2], value[2]);
- } else if ((singletap)&&(num_fields==2))
- {
- /* used by arm7 code */
- shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[0], value[0]);
- shiftValueInner(TAP_DRSHIFT, end_state, num_bits[1], value[1]);
- } else
- {
- interface_jtag_add_dr_out_core(target_tap, num_fields, num_bits, value, end_state);
- }
-}
-
-#define interface_jtag_add_callback(callback, in) callback(in)
-
-#define interface_jtag_add_callback4(callback, in, data1, data2, data3) jtag_set_error(callback(in, data1, data2, data3))
+/*************************************************************************** + * Copyright (C) 2007-2008 by Øyvind Harboe * + * * + * 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. * + * * + * 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 <cyg/hal/hal_io.h> // low level i/o + +//#define VERBOSE(a) a +#define VERBOSE(a) + +/* used to test manual mode */ +#define TEST_MANUAL() 0 + +#if 0 +int diag_printf( const char *fmt, ... ); +#define ZY1000_POKE(a, b) HAL_WRITE_UINT32(a, b); diag_printf("poke 0x%08x,0x%08x\n", a, b) +#define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b); diag_printf("peek 0x%08x=0x%08x\n", a, b) +#else +#define ZY1000_POKE(a, b) HAL_WRITE_UINT32(a, b) +#define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b) +#endif + +// FIFO empty? +static __inline__ void waitIdle(void) +{ + cyg_uint32 empty; + do + { + ZY1000_PEEK(ZY1000_JTAG_BASE+0x10, empty); + } while ((empty & 0x100)==0); +} + +static __inline__ void waitQueue(void) +{ +// waitIdle(); +} + +static void sampleShiftRegister(void) +{ +#if 0 + cyg_uint32 dummy; + waitIdle(); + ZY1000_PEEK(ZY1000_JTAG_BASE+0xc, dummy); +#endif +} + +/* -O3 will inline this for us */ +static void setCurrentState(enum tap_state state) +{ + cyg_uint32 a; + a=state; + int repeat=0; + if (state==TAP_RESET) + { + // The FPGA nor we know the current state of the CPU TAP + // controller. This will move it to TAP for sure. + // + // 5 should be enough here, 7 is what OpenOCD uses + repeat=7; + } + waitQueue(); + sampleShiftRegister(); + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|a); + +} + +/* + * Enter state and cause repeat transitions *out* of that state. So if the endState!=state, then + * the transition from state to endState counts as a transition out of state. + */ +static __inline__ void shiftValueInner(const enum tap_state state, const enum tap_state endState, int repeat, cyg_uint32 value) +{ + cyg_uint32 a,b; + a=state; + b=endState; + waitQueue(); + sampleShiftRegister(); + ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value); +#if 1 +#if TEST_MANUAL() + if ((state==TAP_DRSHIFT)&&(endState!=TAP_DRSHIFT)) + { + int i; + setCurrentState(state); + for (i=0; i<repeat; i++) + { + int tms; + tms=0; + if ((i==repeat-1)&&(state!=endState)) + { + tms=1; + } + /* shift out value */ + waitIdle(); + ZY1000_POKE(ZY1000_JTAG_BASE+0x28, (((value>>i)&1)<<1)|tms); + } + waitIdle(); + ZY1000_POKE(ZY1000_JTAG_BASE+0x28, 0); + waitIdle(); + //ZY1000_POKE(ZY1000_JTAG_BASE+0x20, TAP_DRSHIFT); // set this state and things break => expected + ZY1000_POKE(ZY1000_JTAG_BASE+0x20, TAP_DRPAUSE); // set this and things will work => expected. Not setting this is not sufficient to make things break. + setCurrentState(endState); + } else + { + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b); + } +#else + /* fast version */ + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b); +#endif +#else + /* maximum debug version */ + if ((repeat>0)&&((state==TAP_DRSHIFT)||(state==TAP_SI))) + { + int i; + /* sample shift register for every bit. */ + for (i=0; i<repeat-1; i++) + { + sampleShiftRegister(); + ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value>>i); + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (1<<8)|(a<<4)|a); + } + sampleShiftRegister(); + ZY1000_POKE(ZY1000_JTAG_BASE+0xc, value>>(repeat-1)); + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (1<<8)|(a<<4)|b); + } else + { + sampleShiftRegister(); + ZY1000_POKE(ZY1000_JTAG_BASE+0x8, (repeat<<8)|(a<<4)|b); + } + sampleShiftRegister(); +#endif +} + + + +static __inline__ void interface_jtag_add_dr_out_core(jtag_tap_t *target_tap, + int num_fields, + const int *num_bits, + const u32 *value, + enum tap_state end_state) +{ + enum tap_state pause_state = TAP_DRSHIFT; + + jtag_tap_t *tap, *nextTap; + for(tap = jtag_tap_next_enabled(NULL); tap!= NULL; tap=nextTap) + { + nextTap=jtag_tap_next_enabled(tap); + if (nextTap==NULL) + { + pause_state = end_state; + } + if (tap == target_tap) + { + int j; + for (j=0; j<(num_fields-1); j++) + { + shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[j], value[j]); + } + shiftValueInner(TAP_DRSHIFT, pause_state, num_bits[j], value[j]); + } else + { + /* program the scan field to 1 bit length, and ignore it's value */ + shiftValueInner(TAP_DRSHIFT, pause_state, 1, 0); + } + } +} + +static __inline__ void interface_jtag_add_dr_out(jtag_tap_t *target_tap, + int num_fields, + const int *num_bits, + const u32 *value, + enum tap_state end_state) +{ + + int singletap=(jtag_tap_next_enabled(jtag_tap_next_enabled(NULL))==NULL); + if ((singletap)&&(num_fields==3)) + { + /* used by embeddedice_write_reg_inner() */ + shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[0], value[0]); + shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[1], value[1]); + shiftValueInner(TAP_DRSHIFT, end_state, num_bits[2], value[2]); + } else if ((singletap)&&(num_fields==2)) + { + /* used by arm7 code */ + shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, num_bits[0], value[0]); + shiftValueInner(TAP_DRSHIFT, end_state, num_bits[1], value[1]); + } else + { + interface_jtag_add_dr_out_core(target_tap, num_fields, num_bits, value, end_state); + } +} + +#define interface_jtag_add_callback(callback, in) callback(in) + +#define interface_jtag_add_callback4(callback, in, data1, data2, data3) jtag_set_error(callback(in, data1, data2, data3)) |