It uses STAPL files and programs Altera FPGA through JTAG.
Interface to JTAG must be provided from main device module,
for example through cx23885 GPIO.
Signed-off-by: Igor M. Liplianin <liplianin@xxxxxxxx>
---
drivers/misc/Kconfig | 1 +
drivers/misc/Makefile | 1 +
drivers/misc/altera-stapl/Kconfig | 8 +
drivers/misc/altera-stapl/Makefile | 3 +
drivers/misc/altera-stapl/altera-comp.c | 142 ++
drivers/misc/altera-stapl/altera-exprt.h | 33 +
drivers/misc/altera-stapl/altera-jtag.c | 1010 ++++++++++++
drivers/misc/altera-stapl/altera-jtag.h | 113 ++
drivers/misc/altera-stapl/altera-lpt.c | 70 +
drivers/misc/altera-stapl/altera.c | 2484 ++++++++++++++++++++++++++++++
include/misc/altera.h | 49 +
11 files changed, 3914 insertions(+), 0 deletions(-)
create mode 100644 drivers/misc/altera-stapl/Kconfig
create mode 100644 drivers/misc/altera-stapl/Makefile
create mode 100644 drivers/misc/altera-stapl/altera-comp.c
create mode 100644 drivers/misc/altera-stapl/altera-exprt.h
create mode 100644 drivers/misc/altera-stapl/altera-jtag.c
create mode 100644 drivers/misc/altera-stapl/altera-jtag.h
create mode 100644 drivers/misc/altera-stapl/altera-lpt.c
create mode 100644 drivers/misc/altera-stapl/altera.c
create mode 100644 include/misc/altera.h
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 4d073f1..f3f8044 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -457,5 +457,6 @@ source "drivers/misc/eeprom/Kconfig"
source "drivers/misc/cb710/Kconfig"
source "drivers/misc/iwmc3200top/Kconfig"
source "drivers/misc/ti-st/Kconfig"
+source "drivers/misc/altera-stapl/Kconfig"
endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 98009cc..3c1e6ff 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -42,3 +42,4 @@ obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o
obj-$(CONFIG_PCH_PHUB) += pch_phub.o
obj-y += ti-st/
obj-$(CONFIG_AB8500_PWM) += ab8500-pwm.o
+obj-y += altera-stapl/
diff --git a/drivers/misc/altera-stapl/Kconfig b/drivers/misc/altera-stapl/Kconfig
new file mode 100644
index 0000000..711a4a2
--- /dev/null
+++ b/drivers/misc/altera-stapl/Kconfig
@@ -0,0 +1,8 @@
+comment "Altera FPGA firmware download module"
+
+config ALTERA_STAPL
+ tristate "Altera FPGA firmware download module"
+ depends on I2C
+ default m
+ help
+ An Altera FPGA module. Say Y when you want to support this tool.
diff --git a/drivers/misc/altera-stapl/Makefile b/drivers/misc/altera-stapl/Makefile
new file mode 100644
index 0000000..055f61e
--- /dev/null
+++ b/drivers/misc/altera-stapl/Makefile
@@ -0,0 +1,3 @@
+altera-stapl-objs = altera-lpt.o altera-jtag.o altera-comp.o altera.o
+
+obj-$(CONFIG_ALTERA_STAPL) += altera-stapl.o
diff --git a/drivers/misc/altera-stapl/altera-comp.c b/drivers/misc/altera-stapl/altera-comp.c
new file mode 100644
index 0000000..49b103b
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-comp.c
@@ -0,0 +1,142 @@
+/*
+ * altera-comp.c
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include "altera-exprt.h"
+
+#define SHORT_BITS 16
+#define CHAR_BITS 8
+#define DATA_BLOB_LENGTH 3
+#define MATCH_DATA_LENGTH 8192
+#define ALTERA_REQUEST_SIZE 1024
+#define ALTERA_BUFFER_SIZE (MATCH_DATA_LENGTH + ALTERA_REQUEST_SIZE)
+
+static u32 altera_bits_req(u32 n)
+{
+ u32 result = SHORT_BITS;
+
+ if (n == 0)
+ result = 1;
+ else {
+ /* Look for the highest non-zero bit position */
+ while ((n & (1 << (SHORT_BITS - 1))) == 0) {
+ n <<= 1;
+ --result;
+ }
+ }
+
+ return result;
+}
+
+static u32 altera_read_packed(u8 *buffer, u32 bits, u32 *bits_avail,
+ u32 *in_index)
+{
+ u32 result = 0;
+ u32 shift = 0;
+ u32 databyte = 0;
+
+ while (bits > 0) {
+ databyte = buffer[*in_index];
+ result |= (((databyte >> (CHAR_BITS - *bits_avail))
+ & (0xff >> (CHAR_BITS - *bits_avail))) << shift);
+
+ if (bits <= *bits_avail) {
+ result &= (0xffff >> (SHORT_BITS - (bits + shift)));
+ *bits_avail -= bits;
+ bits = 0;
+ } else {
+ ++(*in_index);
+ shift += *bits_avail;
+ bits -= *bits_avail;
+ *bits_avail = CHAR_BITS;
+ }
+ }
+
+ return result;
+}
+
+u32 altera_shrink(u8 *in, u32 in_length, u8 *out, u32 out_length, s32 version)
+{
+ u32 i, j, data_length = 0L;
+ u32 offset, length;
+ u32 match_data_length = MATCH_DATA_LENGTH;
+ u32 bits_avail = CHAR_BITS;
+ u32 in_index = 0L;
+
+ if (version > 0)
+ --match_data_length;
+
+ for (i = 0; i < out_length; ++i)
+ out[i] = 0;
+
+ /* Read number of bytes in data. */
+ for (i = 0; i < sizeof(in_length); ++i) {
+ data_length = data_length | (
+ altera_read_packed(in,
+ CHAR_BITS,
+ &bits_avail,
+ &in_index) << (i * CHAR_BITS));
+ }
+
+ if (data_length > out_length) {
+ data_length = 0L;
+ return data_length;
+ }
+
+ i = 0;
+ while (i < data_length) {
+ /* A 0 bit indicates literal data. */
+ if (altera_read_packed(in, 1, &bits_avail,
+ &in_index) == 0) {
+ for (j = 0; j < DATA_BLOB_LENGTH; ++j) {
+ if (i < data_length) {
+ out[i] = (u8)altera_read_packed(in,
+ CHAR_BITS,
+ &bits_avail,
+ &in_index);
+ i++;
+ }
+ }
+ } else {
+ /* A 1 bit indicates offset/length to follow. */
+ offset = altera_read_packed(in, altera_bits_req((s16)
+ (i > match_data_length ?
+ match_data_length : i)),
+ &bits_avail,
+ &in_index);
+ length = altera_read_packed(in, CHAR_BITS,
+ &bits_avail,
+ &in_index);
+ for (j = 0; j < length; ++j) {
+ if (i < data_length) {
+ out[i] = out[i - offset];
+ i++;
+ }
+ }
+ }
+ }
+
+ return data_length;
+}
diff --git a/drivers/misc/altera-stapl/altera-exprt.h b/drivers/misc/altera-stapl/altera-exprt.h
new file mode 100644
index 0000000..39c38d8
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-exprt.h
@@ -0,0 +1,33 @@
+/*
+ * altera-exprt.h
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef ALTERA_EXPRT_H
+#define ALTERA_EXPRT_H
+
+
+u32 altera_shrink(u8 *in, u32 in_length, u8 *out, u32 out_length, s32 version);
+int netup_jtag_io_lpt(void *device, int tms, int tdi, int read_tdo);
+
+#endif /* ALTERA_EXPRT_H */
diff --git a/drivers/misc/altera-stapl/altera-jtag.c b/drivers/misc/altera-stapl/altera-jtag.c
new file mode 100644
index 0000000..5cbae05
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-jtag.c
@@ -0,0 +1,1010 @@
+/*
+ * altera-jtag.c
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/firmware.h>
+#include <linux/slab.h>
+#include <misc/altera.h>
+#include "altera-exprt.h"
+#include "altera-jtag.h"
+
+#define alt_jtag_io(a, b, c)\
+ astate->config->jtag_io(astate->config->dev, a, b, c);
+
+#define alt_malloc(a) kzalloc(a, GFP_KERNEL);
+
+/*
+This structure shows, for each JTAG state, which state is reached after
+a single TCK clock cycle with TMS high or TMS low, respectively. This
+describes all possible state transitions in the JTAG state machine.
+*/
+struct altera_jtag_machine {
+ enum altera_jtag_state tms_high;
+ enum altera_jtag_state tms_low;
+};
+
+static const struct altera_jtag_machine altera_jstate_transitions[] = {
+ /* RESET */ { RESET, IDLE },
+ /* IDLE */ { DRSELECT, IDLE },
+ /* DRSELECT */ { IRSELECT, DRCAPTURE },
+ /* DRCAPTURE */ { DREXIT1, DRSHIFT },
+ /* DRSHIFT */ { DREXIT1, DRSHIFT },
+ /* DREXIT1 */ { DRUPDATE, DRPAUSE },
+ /* DRPAUSE */ { DREXIT2, DRPAUSE },
+ /* DREXIT2 */ { DRUPDATE, DRSHIFT },
+ /* DRUPDATE */ { DRSELECT, IDLE },
+ /* IRSELECT */ { RESET, IRCAPTURE },
+ /* IRCAPTURE */ { IREXIT1, IRSHIFT },
+ /* IRSHIFT */ { IREXIT1, IRSHIFT },
+ /* IREXIT1 */ { IRUPDATE, IRPAUSE },
+ /* IRPAUSE */ { IREXIT2, IRPAUSE },
+ /* IREXIT2 */ { IRUPDATE, IRSHIFT },
+ /* IRUPDATE */ { DRSELECT, IDLE }
+};
+
+/*
+This table contains the TMS value to be used to take the NEXT STEP on
+the path to the desired state. The array index is the current state,
+and the bit position is the desired endstate. To find out which state
+is used as the intermediate state, look up the TMS value in the
+altera_jstate_transitions[] table.
+*/
+static const u16 altera_jtag_path_map[16] = {
+ /* RST RTI SDRS CDR SDR E1DR PDR E2DR */
+ 0x0001, 0xFFFD, 0xFE01, 0xFFE7, 0xFFEF, 0xFF0F, 0xFFBF, 0xFFFF,
+ /* UDR SIRS CIR SIR E1IR PIR E2IR UIR */
+ 0xFEFD, 0x0001, 0xF3FF, 0xF7FF, 0x87FF, 0xDFFF, 0xFFFF, 0x7FFD
+};
+
+/* Flag bits for alt_jtag_io() function */
+#define TMS_HIGH 1
+#define TMS_LOW 0
+#define TDI_HIGH 1
+#define TDI_LOW 0
+#define READ_TDO 1
+#define IGNORE_TDO 0
+
+int altera_jinit(struct altera_state *astate)
+{
+ struct altera_jtag *js = &astate->js;
+
+ /* initial JTAG state is unknown */
+ js->jtag_state = ILLEGAL_JTAG_STATE;
+
+ /* initialize to default state */
+ js->drstop_state = IDLE;
+ js->irstop_state = IDLE;
+ js->dr_pre = 0;
+ js->dr_post = 0;
+ js->ir_pre = 0;
+ js->ir_post = 0;
+ js->dr_length = 0;
+ js->ir_length = 0;
+
+ js->dr_pre_data = NULL;
+ js->dr_post_data = NULL;
+ js->ir_pre_data = NULL;
+ js->ir_post_data = NULL;
+ js->dr_buffer = NULL;
+ js->ir_buffer = NULL;
+
+ return 0;
+}
+
+int altera_set_drstop(struct altera_jtag *js, enum altera_jtag_state state)
+{
+ js->drstop_state = state;
+
+ return 0;
+}
+
+int altera_set_irstop(struct altera_jtag *js, enum altera_jtag_state state)
+{
+ js->irstop_state = state;
+
+ return 0;
+}
+
+int altera_set_dr_pre(struct altera_jtag *js,
+ u32 count, u32 start_index,
+ u8 *preamble_data)
+{
+ int status = 0;
+ u32 i;
+ u32 j;
+
+ if (count > js->dr_pre) {
+ kfree(js->dr_pre_data);
+ js->dr_pre_data = (u8 *)alt_malloc((count + 7) >> 3);
+ if (js->dr_pre_data == NULL)
+ status = -ENOMEM;
+ else
+ js->dr_pre = count;
+ } else
+ js->dr_pre = count;
+
+ if (status == 0) {
+ for (i = 0; i < count; ++i) {
+ j = i + start_index;
+
+ if (preamble_data == NULL)
+ js->dr_pre_data[i >> 3] |= (1 << (i & 7));
+ else {
+ if (preamble_data[j >> 3] & (1 << (j & 7)))
+ js->dr_pre_data[i >> 3] |=
+ (1 << (i & 7));
+ else
+ js->dr_pre_data[i >> 3] &=
+ ~(u32)(1 << (i & 7));
+
+ }
+ }
+ }
+
+ return status;
+}
+
+int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *preamble_data)
+{
+ int status = 0;
+ u32 i;
+ u32 j;
+
+ if (count > js->ir_pre) {
+ kfree(js->ir_pre_data);
+ js->ir_pre_data = (u8 *)alt_malloc((count + 7) >> 3);
+ if (js->ir_pre_data == NULL)
+ status = -ENOMEM;
+ else
+ js->ir_pre = count;
+
+ } else
+ js->ir_pre = count;
+
+ if (status == 0) {
+ for (i = 0; i < count; ++i) {
+ j = i + start_index;
+ if (preamble_data == NULL)
+ js->ir_pre_data[i >> 3] |= (1 << (i & 7));
+ else {
+ if (preamble_data[j >> 3] & (1 << (j & 7)))
+ js->ir_pre_data[i >> 3] |=
+ (1 << (i & 7));
+ else
+ js->ir_pre_data[i >> 3] &=
+ ~(u32)(1 << (i & 7));
+
+ }
+ }
+ }
+
+ return status;
+}
+
+int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data)
+{
+ int status = 0;
+ u32 i;
+ u32 j;
+
+ if (count > js->dr_post) {
+ kfree(js->dr_post_data);
+ js->dr_post_data = (u8 *)alt_malloc((count + 7) >> 3);
+
+ if (js->dr_post_data == NULL)
+ status = -ENOMEM;
+ else
+ js->dr_post = count;
+
+ } else
+ js->dr_post = count;
+
+ if (status == 0) {
+ for (i = 0; i < count; ++i) {
+ j = i + start_index;
+
+ if (postamble_data == NULL)
+ js->dr_post_data[i >> 3] |= (1 << (i & 7));
+ else {
+ if (postamble_data[j >> 3] & (1 << (j & 7)))
+ js->dr_post_data[i >> 3] |=
+ (1 << (i & 7));
+ else
+ js->dr_post_data[i >> 3] &=
+ ~(u32)(1 << (i & 7));
+
+ }
+ }
+ }
+
+ return status;
+}
+
+int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data)
+{
+ int status = 0;
+ u32 i;
+ u32 j;
+
+ if (count > js->ir_post) {
+ kfree(js->ir_post_data);
+ js->ir_post_data = (u8 *)alt_malloc((count + 7) >> 3);
+ if (js->ir_post_data == NULL)
+ status = -ENOMEM;
+ else
+ js->ir_post = count;
+
+ } else
+ js->ir_post = count;
+
+ if (status != 0)
+ return status;
+
+ for (i = 0; i < count; ++i) {
+ j = i + start_index;
+
+ if (postamble_data == NULL)
+ js->ir_post_data[i >> 3] |= (1 << (i & 7));
+ else {
+ if (postamble_data[j >> 3] & (1 << (j & 7)))
+ js->ir_post_data[i >> 3] |= (1 << (i & 7));
+ else
+ js->ir_post_data[i >> 3] &=
+ ~(u32)(1 << (i & 7));
+
+ }
+ }
+
+ return status;
+}
+
+static void altera_jreset_idle(struct altera_state *astate)
+{
+ struct altera_jtag *js = &astate->js;
+ int i;
+ /* Go to Test Logic Reset (no matter what the starting state may be) */
+ for (i = 0; i < 5; ++i)
+ alt_jtag_io(TMS_HIGH, TDI_LOW, IGNORE_TDO);
+
+ /* Now step to Run Test / Idle */
+ alt_jtag_io(TMS_LOW, TDI_LOW, IGNORE_TDO);
+ js->jtag_state = IDLE;
+}
+
+int altera_goto_jstate(struct altera_state *astate,
+ enum altera_jtag_state state)
+{
+ struct altera_jtag *js = &astate->js;
+ int tms;
+ int count = 0;
+ int status = 0;
+
+ if (js->jtag_state == ILLEGAL_JTAG_STATE)
+ /* initialize JTAG chain to known state */
+ altera_jreset_idle(astate);
+
+ if (js->jtag_state == state) {
+ /*
+ We are already in the desired state. If it is a stable state,
+ loop here. Otherwise do nothing (no clock cycles).
+ */
+ if ((state == IDLE) || (state == DRSHIFT) ||
+ (state == DRPAUSE) || (state == IRSHIFT) ||
+ (state == IRPAUSE)) {
+ alt_jtag_io(TMS_LOW, TDI_LOW, IGNORE_TDO);
+ } else if (state == RESET)
+ alt_jtag_io(TMS_HIGH, TDI_LOW, IGNORE_TDO);
+
+ } else {
+ while ((js->jtag_state != state) && (count < 9)) {
+ /* Get TMS value to take a step toward desired state */
+ tms = (altera_jtag_path_map[js->jtag_state] &
+ (1 << state))
+ ? TMS_HIGH : TMS_LOW;
+
+ /* Take a step */
+ alt_jtag_io(tms, TDI_LOW, IGNORE_TDO);
+
+ if (tms)
+ js->jtag_state =
+ altera_jstate_transitions[js->jtag_state].tms_high;
+ else
+ js->jtag_state =
+ altera_jstate_transitions[js->jtag_state].tms_low;
+
+ ++count;
+ }
+ }
+
+ if (js->jtag_state != state)
+ status = -EREMOTEIO;
+
+ return status;
+}
+
+int altera_wait_cycles(struct altera_state *astate,
+ s32 cycles,
+ enum altera_jtag_state wait_state)
+{
+ struct altera_jtag *js = &astate->js;
+ int tms;
+ s32 count;
+ int status = 0;
+
+ if (js->jtag_state != wait_state)
+ status = altera_goto_jstate(astate, wait_state);
+
+ if (status == 0) {
+ /*
+ Set TMS high to loop in RESET state
+ Set TMS low to loop in any other stable state
+ */
+ tms = (wait_state == RESET) ? TMS_HIGH : TMS_LOW;
+
+ for (count = 0L; count < cycles; count++)
+ alt_jtag_io(tms, TDI_LOW, IGNORE_TDO);
+
+ }
+
+ return status;
+}
+
+int altera_wait_msecs(struct altera_state *astate,
+ s32 microseconds, enum altera_jtag_state wait_state)
+/*
+Causes JTAG hardware to sit in the specified stable
+state for the specified duration of real time. If
+no JTAG operations have been performed yet, then only
+a delay is performed. This permits the WAIT USECS
+statement to be used in VECTOR programs without causing
+any JTAG operations.
+Returns 0 for success, else appropriate error code. */
+{
+ struct altera_jtag *js = &astate->js;
+ int status = 0;
+
+ if ((js->jtag_state != ILLEGAL_JTAG_STATE) &&
+ (js->jtag_state != wait_state))
+ status = altera_goto_jstate(astate, wait_state);
+
+ if (status == 0)
+ /* Wait for specified time interval */
+ udelay(microseconds);
+
+ return status;
+}
+
+static void altera_concatenate_data(u8 *buffer,
+ u8 *preamble_data,
+ u32 preamble_count,
+ u8 *target_data,
+ u32 start_index,
+ u32 target_count,
+ u8 *postamble_data,
+ u32 postamble_count)
+/*
+Copies preamble data, target data, and postamble data
+into one buffer for IR or DR scans. */
+{
+ u32 i, j, k;
+
+ for (i = 0L; i < preamble_count; ++i) {
+ if (preamble_data[i >> 3L] & (1L << (i & 7L)))
+ buffer[i >> 3L] |= (1L << (i & 7L));
+ else
+ buffer[i >> 3L] &= ~(u32)(1L << (i & 7L));
+
+ }
+
+ j = start_index;
+ k = preamble_count + target_count;
+ for (; i < k; ++i, ++j) {
+ if (target_data[j >> 3L] & (1L << (j & 7L)))
+ buffer[i >> 3L] |= (1L << (i & 7L));
+ else
+ buffer[i >> 3L] &= ~(u32)(1L << (i & 7L));
+
+ }
+
+ j = 0L;
+ k = preamble_count + target_count + postamble_count;
+ for (; i < k; ++i, ++j) {
+ if (postamble_data[j >> 3L] & (1L << (j & 7L)))
+ buffer[i >> 3L] |= (1L << (i & 7L));
+ else
+ buffer[i >> 3L] &= ~(u32)(1L << (i & 7L));
+
+ }
+}
+
+static int alt_jtag_drscan(struct altera_state *astate,
+ int start_state,
+ int count,
+ u8 *tdi,
+ u8 *tdo)
+{
+ int i = 0;
+ int tdo_bit = 0;
+ int status = 1;
+
+ /* First go to DRSHIFT state */
+ switch (start_state) {
+ case 0: /* IDLE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(0, 0, 0); /* DRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* DRSHIFT */
+ break;
+
+ case 1: /* DRPAUSE */
+ alt_jtag_io(1, 0, 0); /* DREXIT2 */
+ alt_jtag_io(1, 0, 0); /* DRUPDATE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(0, 0, 0); /* DRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* DRSHIFT */
+ break;
+
+ case 2: /* IRPAUSE */
+ alt_jtag_io(1, 0, 0); /* IREXIT2 */
+ alt_jtag_io(1, 0, 0); /* IRUPDATE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(0, 0, 0); /* DRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* DRSHIFT */
+ break;
+
+ default:
+ status = 0;
+ }
+
+ if (status) {
+ /* loop in the SHIFT-DR state */
+ for (i = 0; i < count; i++) {
+ tdo_bit = alt_jtag_io(
+ (i == count - 1),
+ tdi[i >> 3] & (1 << (i & 7)),
+ (tdo != NULL));
+
+ if (tdo != NULL) {
+ if (tdo_bit)
+ tdo[i >> 3] |= (1 << (i & 7));
+ else
+ tdo[i >> 3] &= ~(u32)(1 << (i & 7));
+
+ }
+ }
+
+ alt_jtag_io(0, 0, 0); /* DRPAUSE */
+ }
+
+ return status;
+}
+
+static int alt_jtag_irscan(struct altera_state *astate,
+ int start_state,
+ int count,
+ u8 *tdi,
+ u8 *tdo)
+{
+ int i = 0;
+ int tdo_bit = 0;
+ int status = 1;
+
+ /* First go to IRSHIFT state */
+ switch (start_state) {
+ case 0: /* IDLE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(1, 0, 0); /* IRSELECT */
+ alt_jtag_io(0, 0, 0); /* IRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* IRSHIFT */
+ break;
+
+ case 1: /* DRPAUSE */
+ alt_jtag_io(1, 0, 0); /* DREXIT2 */
+ alt_jtag_io(1, 0, 0); /* DRUPDATE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(1, 0, 0); /* IRSELECT */
+ alt_jtag_io(0, 0, 0); /* IRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* IRSHIFT */
+ break;
+
+ case 2: /* IRPAUSE */
+ alt_jtag_io(1, 0, 0); /* IREXIT2 */
+ alt_jtag_io(1, 0, 0); /* IRUPDATE */
+ alt_jtag_io(1, 0, 0); /* DRSELECT */
+ alt_jtag_io(1, 0, 0); /* IRSELECT */
+ alt_jtag_io(0, 0, 0); /* IRCAPTURE */
+ alt_jtag_io(0, 0, 0); /* IRSHIFT */
+ break;
+
+ default:
+ status = 0;
+ }
+
+ if (status) {
+ /* loop in the SHIFT-IR state */
+ for (i = 0; i < count; i++) {
+ tdo_bit = alt_jtag_io(
+ (i == count - 1),
+ tdi[i >> 3] & (1 << (i & 7)),
+ (tdo != NULL));
+ if (tdo != NULL) {
+ if (tdo_bit)
+ tdo[i >> 3] |= (1 << (i & 7));
+ else
+ tdo[i >> 3] &= ~(u32)(1 << (i & 7));
+
+ }
+ }
+
+ alt_jtag_io(0, 0, 0); /* IRPAUSE */
+ }
+
+ return status;
+}
+
+static void altera_extract_target_data(u8 *buffer,
+ u8 *target_data,
+ u32 start_index,
+ u32 preamble_count,
+ u32 target_count)
+/*
+Copies target data from scan buffer, filtering out
+preamble and postamble data. */
+{
+ u32 i;
+ u32 j;
+ u32 k;
+
+ j = preamble_count;
+ k = start_index + target_count;
+ for (i = start_index; i < k; ++i, ++j) {
+ if (buffer[j >> 3] & (1 << (j & 7)))
+ target_data[i >> 3] |= (1 << (i & 7));
+ else
+ target_data[i >> 3] &= ~(u32)(1 << (i & 7));
+
+ }
+}
+
+int altera_irscan(struct altera_state *astate,
+ u32 count,
+ u8 *tdi_data,
+ u32 start_index)
+/* Shifts data into instruction register */
+{
+ struct altera_jtag *js = &astate->js;
+ int start_code = 0;
+ u32 alloc_chars = 0;
+ u32 shift_count = js->ir_pre + count + js->ir_post;
+ int status = 0;
+ enum altera_jtag_state start_state = ILLEGAL_JTAG_STATE;
+
+ switch (js->jtag_state) {
+ case ILLEGAL_JTAG_STATE:
+ case RESET:
+ case IDLE:
+ start_code = 0;
+ start_state = IDLE;
+ break;
+
+ case DRSELECT:
+ case DRCAPTURE:
+ case DRSHIFT:
+ case DREXIT1:
+ case DRPAUSE:
+ case DREXIT2:
+ case DRUPDATE:
+ start_code = 1;
+ start_state = DRPAUSE;
+ break;
+
+ case IRSELECT:
+ case IRCAPTURE:
+ case IRSHIFT:
+ case IREXIT1:
+ case IRPAUSE:
+ case IREXIT2:
+ case IRUPDATE:
+ start_code = 2;
+ start_state = IRPAUSE;
+ break;
+
+ default:
+ status = -EREMOTEIO;
+ break;
+ }
+
+ if (status == 0)
+ if (js->jtag_state != start_state)
+ status = altera_goto_jstate(astate, start_state);
+
+ if (status == 0) {
+ if (shift_count > js->ir_length) {
+ alloc_chars = (shift_count + 7) >> 3;
+ kfree(js->ir_buffer);
+ js->ir_buffer = (u8 *)alt_malloc(alloc_chars);
+ if (js->ir_buffer == NULL)
+ status = -ENOMEM;
+ else
+ js->ir_length = alloc_chars * 8;
+
+ }
+ }
+
+ if (status == 0) {
+ /* Copy preamble data, IR data,
+ and postamble data into a buffer */
+ altera_concatenate_data(js->ir_buffer,
+ js->ir_pre_data,
+ js->ir_pre,
+ tdi_data,
+ start_index,
+ count,
+ js->ir_post_data,
+ js->ir_post);
+ /* Do the IRSCAN */
+ alt_jtag_irscan(astate,
+ start_code,
+ shift_count,
+ js->ir_buffer,
+ NULL);
+
+ /* alt_jtag_irscan() always ends in IRPAUSE state */
+ js->jtag_state = IRPAUSE;
+ }
+
+ if (status == 0)
+ if (js->irstop_state != IRPAUSE)
+ status = altera_goto_jstate(astate, js->irstop_state);
+
+
+ return status;
+}
+
+int altera_swap_ir(struct altera_state *astate,
+ u32 count,
+ u8 *in_data,
+ u32 in_index,
+ u8 *out_data,
+ u32 out_index)
+/* Shifts data into instruction register, capturing output data */
+{
+ struct altera_jtag *js = &astate->js;
+ int start_code = 0;
+ u32 alloc_chars = 0;
+ u32 shift_count = js->ir_pre + count + js->ir_post;
+ int status = 0;
+ enum altera_jtag_state start_state = ILLEGAL_JTAG_STATE;
+
+ switch (js->jtag_state) {
+ case ILLEGAL_JTAG_STATE:
+ case RESET:
+ case IDLE:
+ start_code = 0;
+ start_state = IDLE;
+ break;
+
+ case DRSELECT:
+ case DRCAPTURE:
+ case DRSHIFT:
+ case DREXIT1:
+ case DRPAUSE:
+ case DREXIT2:
+ case DRUPDATE:
+ start_code = 1;
+ start_state = DRPAUSE;
+ break;
+
+ case IRSELECT:
+ case IRCAPTURE:
+ case IRSHIFT:
+ case IREXIT1:
+ case IRPAUSE:
+ case IREXIT2:
+ case IRUPDATE:
+ start_code = 2;
+ start_state = IRPAUSE;
+ break;
+
+ default:
+ status = -EREMOTEIO;
+ break;
+ }
+
+ if (status == 0)
+ if (js->jtag_state != start_state)
+ status = altera_goto_jstate(astate, start_state);
+
+ if (status == 0) {
+ if (shift_count > js->ir_length) {
+ alloc_chars = (shift_count + 7) >> 3;
+ kfree(js->ir_buffer);
+ js->ir_buffer = (u8 *)alt_malloc(alloc_chars);
+ if (js->ir_buffer == NULL)
+ status = -ENOMEM;
+ else
+ js->ir_length = alloc_chars * 8;
+
+ }
+ }
+
+ if (status == 0) {
+ /*
+ Copy preamble data, IR data,
+ and postamble data into a buffer */
+ altera_concatenate_data(js->ir_buffer,
+ js->ir_pre_data,
+ js->ir_pre,
+ in_data,
+ in_index,
+ count,
+ js->ir_post_data,
+ js->ir_post);
+
+ /* Do the IRSCAN */
+ alt_jtag_irscan(astate,
+ start_code,
+ shift_count,
+ js->ir_buffer,
+ js->ir_buffer);
+
+ /* alt_jtag_irscan() always ends in IRPAUSE state */
+ js->jtag_state = IRPAUSE;
+ }
+
+ if (status == 0)
+ if (js->irstop_state != IRPAUSE)
+ status = altera_goto_jstate(astate, js->irstop_state);
+
+
+ if (status == 0)
+ /* Now extract the returned data from the buffer */
+ altera_extract_target_data(js->ir_buffer,
+ out_data, out_index,
+ js->ir_pre, count);
+
+ return status;
+}
+
+int altera_drscan(struct altera_state *astate,
+ u32 count,
+ u8 *tdi_data,
+ u32 start_index)
+/* Shifts data into data register (ignoring output data) */
+{
+ struct altera_jtag *js = &astate->js;
+ int start_code = 0;
+ u32 alloc_chars = 0;
+ u32 shift_count = js->dr_pre + count + js->dr_post;
+ int status = 0;
+ enum altera_jtag_state start_state = ILLEGAL_JTAG_STATE;
+
+ switch (js->jtag_state) {
+ case ILLEGAL_JTAG_STATE:
+ case RESET:
+ case IDLE:
+ start_code = 0;
+ start_state = IDLE;
+ break;
+
+ case DRSELECT:
+ case DRCAPTURE:
+ case DRSHIFT:
+ case DREXIT1:
+ case DRPAUSE:
+ case DREXIT2:
+ case DRUPDATE:
+ start_code = 1;
+ start_state = DRPAUSE;
+ break;
+
+ case IRSELECT:
+ case IRCAPTURE:
+ case IRSHIFT:
+ case IREXIT1:
+ case IRPAUSE:
+ case IREXIT2:
+ case IRUPDATE:
+ start_code = 2;
+ start_state = IRPAUSE;
+ break;
+
+ default:
+ status = -EREMOTEIO;
+ break;
+ }
+
+ if (status == 0)
+ if (js->jtag_state != start_state)
+ status = altera_goto_jstate(astate, start_state);
+
+ if (status == 0) {
+ if (shift_count > js->dr_length) {
+ alloc_chars = (shift_count + 7) >> 3;
+ kfree(js->dr_buffer);
+ js->dr_buffer = (u8 *)alt_malloc(alloc_chars);
+ if (js->dr_buffer == NULL)
+ status = -ENOMEM;
+ else
+ js->dr_length = alloc_chars * 8;
+
+ }
+ }
+
+ if (status == 0) {
+ /*
+ Copy preamble data, DR data,
+ and postamble data into a buffer */
+ altera_concatenate_data(js->dr_buffer,
+ js->dr_pre_data,
+ js->dr_pre,
+ tdi_data,
+ start_index,
+ count,
+ js->dr_post_data,
+ js->dr_post);
+ /* Do the DRSCAN */
+ alt_jtag_drscan(astate, start_code, shift_count,
+ js->dr_buffer, NULL);
+ /* alt_jtag_drscan() always ends in DRPAUSE state */
+ js->jtag_state = DRPAUSE;
+ }
+
+ if (status == 0)
+ if (js->drstop_state != DRPAUSE)
+ status = altera_goto_jstate(astate, js->drstop_state);
+
+ return status;
+}
+
+int altera_swap_dr(struct altera_state *astate, u32 count,
+ u8 *in_data, u32 in_index,
+ u8 *out_data, u32 out_index)
+/* Shifts data into data register, capturing output data */
+{
+ struct altera_jtag *js = &astate->js;
+ int start_code = 0;
+ u32 alloc_chars = 0;
+ u32 shift_count = js->dr_pre + count + js->dr_post;
+ int status = 0;
+ enum altera_jtag_state start_state = ILLEGAL_JTAG_STATE;
+
+ switch (js->jtag_state) {
+ case ILLEGAL_JTAG_STATE:
+ case RESET:
+ case IDLE:
+ start_code = 0;
+ start_state = IDLE;
+ break;
+
+ case DRSELECT:
+ case DRCAPTURE:
+ case DRSHIFT:
+ case DREXIT1:
+ case DRPAUSE:
+ case DREXIT2:
+ case DRUPDATE:
+ start_code = 1;
+ start_state = DRPAUSE;
+ break;
+
+ case IRSELECT:
+ case IRCAPTURE:
+ case IRSHIFT:
+ case IREXIT1:
+ case IRPAUSE:
+ case IREXIT2:
+ case IRUPDATE:
+ start_code = 2;
+ start_state = IRPAUSE;
+ break;
+
+ default:
+ status = -EREMOTEIO;
+ break;
+ }
+
+ if (status == 0)
+ if (js->jtag_state != start_state)
+ status = altera_goto_jstate(astate, start_state);
+
+ if (status == 0) {
+ if (shift_count > js->dr_length) {
+ alloc_chars = (shift_count + 7) >> 3;
+ kfree(js->dr_buffer);
+ js->dr_buffer = (u8 *)alt_malloc(alloc_chars);
+
+ if (js->dr_buffer == NULL)
+ status = -ENOMEM;
+ else
+ js->dr_length = alloc_chars * 8;
+
+ }
+ }
+
+ if (status == 0) {
+ /* Copy preamble data, DR data,
+ and postamble data into a buffer */
+ altera_concatenate_data(js->dr_buffer,
+ js->dr_pre_data,
+ js->dr_pre,
+ in_data,
+ in_index,
+ count,
+ js->dr_post_data,
+ js->dr_post);
+
+ /* Do the DRSCAN */
+ alt_jtag_drscan(astate,
+ start_code,
+ shift_count,
+ js->dr_buffer,
+ js->dr_buffer);
+
+ /* alt_jtag_drscan() always ends in DRPAUSE state */
+ js->jtag_state = DRPAUSE;
+ }
+
+ if (status == 0)
+ if (js->drstop_state != DRPAUSE)
+ status = altera_goto_jstate(astate, js->drstop_state);
+
+ if (status == 0)
+ /* Now extract the returned data from the buffer */
+ altera_extract_target_data(js->dr_buffer,
+ out_data,
+ out_index,
+ js->dr_pre,
+ count);
+
+ return status;
+}
+
+void altera_free_buffers(struct altera_state *astate)
+{
+ struct altera_jtag *js = &astate->js;
+ /* If the JTAG interface was used, reset it to TLR */
+ if (js->jtag_state != ILLEGAL_JTAG_STATE)
+ altera_jreset_idle(astate);
+
+ kfree(js->dr_pre_data);
+ js->dr_pre_data = NULL;
+
+ kfree(js->dr_post_data);
+ js->dr_post_data = NULL;
+
+ kfree(js->dr_buffer);
+ js->dr_buffer = NULL;
+
+ kfree(js->ir_pre_data);
+ js->ir_pre_data = NULL;
+
+ kfree(js->ir_post_data);
+ js->ir_post_data = NULL;
+
+ kfree(js->ir_buffer);
+ js->ir_buffer = NULL;
+}
diff --git a/drivers/misc/altera-stapl/altera-jtag.h b/drivers/misc/altera-stapl/altera-jtag.h
new file mode 100644
index 0000000..2f97e36
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-jtag.h
@@ -0,0 +1,113 @@
+/*
+ * altera-jtag.h
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef ALTERA_JTAG_H
+#define ALTERA_JTAG_H
+
+/* Function Prototypes */
+enum altera_jtag_state {
+ ILLEGAL_JTAG_STATE = -1,
+ RESET = 0,
+ IDLE = 1,
+ DRSELECT = 2,
+ DRCAPTURE = 3,
+ DRSHIFT = 4,
+ DREXIT1 = 5,
+ DRPAUSE = 6,
+ DREXIT2 = 7,
+ DRUPDATE = 8,
+ IRSELECT = 9,
+ IRCAPTURE = 10,
+ IRSHIFT = 11,
+ IREXIT1 = 12,
+ IRPAUSE = 13,
+ IREXIT2 = 14,
+ IRUPDATE = 15
+
+};
+
+struct altera_jtag {
+ /* Global variable to store the current JTAG state */
+ enum altera_jtag_state jtag_state;
+
+ /* Store current stop-state for DR and IR scan commands */
+ enum altera_jtag_state drstop_state;
+ enum altera_jtag_state irstop_state;
+
+ /* Store current padding values */
+ u32 dr_pre;
+ u32 dr_post;
+ u32 ir_pre;
+ u32 ir_post;
+ u32 dr_length;
+ u32 ir_length;
+ u8 *dr_pre_data;
+ u8 *dr_post_data;
+ u8 *ir_pre_data;
+ u8 *ir_post_data;
+ u8 *dr_buffer;
+ u8 *ir_buffer;
+};
+
+#define ALTERA_STACK_SIZE 128
+#define ALTERA_MESSAGE_LENGTH 1024
+
+struct altera_state {
+ struct altera_config *config;
+ struct altera_jtag js;
+ char msg_buff[ALTERA_MESSAGE_LENGTH + 1];
+ long stack[ALTERA_STACK_SIZE];
+};
+
+int altera_jinit(struct altera_state *astate);
+int altera_set_drstop(struct altera_jtag *js, enum altera_jtag_state state);
+int altera_set_irstop(struct altera_jtag *js, enum altera_jtag_state state);
+int altera_set_dr_pre(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *preamble_data);
+int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *preamble_data);
+int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data);
+int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data);
+int altera_goto_jstate(struct altera_state *astate,
+ enum altera_jtag_state state);
+int altera_wait_cycles(struct altera_state *astate, s32 cycles,
+ enum altera_jtag_state wait_state);
+int altera_wait_msecs(struct altera_state *astate, s32 microseconds,
+ enum altera_jtag_state wait_state);
+int altera_irscan(struct altera_state *astate, u32 count,
+ u8 *tdi_data, u32 start_index);
+int altera_swap_ir(struct altera_state *astate,
+ u32 count, u8 *in_data,
+ u32 in_index, u8 *out_data,
+ u32 out_index);
+int altera_drscan(struct altera_state *astate, u32 count,
+ u8 *tdi_data, u32 start_index);
+int altera_swap_dr(struct altera_state *astate, u32 count,
+ u8 *in_data, u32 in_index,
+ u8 *out_data, u32 out_index);
+void altera_free_buffers(struct altera_state *astate);
+#endif /* ALTERA_JTAG_H */
diff --git a/drivers/misc/altera-stapl/altera-lpt.c b/drivers/misc/altera-stapl/altera-lpt.c
new file mode 100644
index 0000000..91456a0
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-lpt.c
@@ -0,0 +1,70 @@
+/*
+ * altera-lpt.c
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Abylay Ospan <aospan@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include "altera-exprt.h"
+
+static int lpt_hardware_initialized;
+
+static void byteblaster_write(int port, int data)
+{
+ outb((u8)data, (u16)(port + 0x378));
+};
+
+static int byteblaster_read(int port)
+{
+ int data = 0;
+ data = inb((u16)(port + 0x378));
+ return data & 0xff;
+};
+
+int netup_jtag_io_lpt(void *device, int tms, int tdi, int read_tdo)
+{
+ int data = 0;
+ int tdo = 0;
+ int initial_lpt_ctrl = 0;
+
+ if (!lpt_hardware_initialized) {
+ initial_lpt_ctrl = byteblaster_read(2);
+ byteblaster_write(2, (initial_lpt_ctrl | 0x02) & 0xdf);
+ lpt_hardware_initialized = 1;
+ }
+
+ data = ((tdi ? 0x40 : 0) | (tms ? 0x02 : 0));
+
+ byteblaster_write(0, data);
+
+ if (read_tdo) {
+ tdo = byteblaster_read(1);
+ tdo = ((tdo & 0x80) ? 0 : 1);
+ }
+
+ byteblaster_write(0, data | 0x01);
+
+ byteblaster_write(0, data);
+
+ return tdo;
+}
diff --git a/drivers/misc/altera-stapl/altera.c b/drivers/misc/altera-stapl/altera.c
new file mode 100644
index 0000000..6e176e3
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera.c
@@ -0,0 +1,2484 @@
+/*
+ * altera.c
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <asm/unaligned.h>
+#include <linux/ctype.h>
+#include <linux/string.h>
+#include <linux/firmware.h>
+#include <linux/slab.h>
+#include <misc/altera.h>
+#include "altera-exprt.h"
+#include "altera-jtag.h"
+
+static int debug = 1;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debugging information");
+
+MODULE_DESCRIPTION("altera FPGA kernel module");
+MODULE_AUTHOR("Igor M. Liplianin <liplianin@xxxxxxxx>");
+MODULE_LICENSE("GPL");
+
+#define dprintk(args...) \
+ if (debug) { \
+ printk(KERN_DEBUG args); \
+ }
+
+enum altera_fpga_opcode {
+ OP_NOP = 0,
+ OP_DUP,
+ OP_SWP,
+ OP_ADD,
+ OP_SUB,
+ OP_MULT,
+ OP_DIV,
+ OP_MOD,
+ OP_SHL,
+ OP_SHR,
+ OP_NOT,
+ OP_AND,
+ OP_OR,
+ OP_XOR,
+ OP_INV,
+ OP_GT,
+ OP_LT,
+ OP_RET,
+ OP_CMPS,
+ OP_PINT,
+ OP_PRNT,
+ OP_DSS,
+ OP_DSSC,
+ OP_ISS,
+ OP_ISSC,
+ OP_DPR = 0x1c,
+ OP_DPRL,
+ OP_DPO,
+ OP_DPOL,
+ OP_IPR,
+ OP_IPRL,
+ OP_IPO,
+ OP_IPOL,
+ OP_PCHR,
+ OP_EXIT,
+ OP_EQU,
+ OP_POPT,
+ OP_ABS = 0x2c,
+ OP_BCH0,
+ OP_PSH0 = 0x2f,
+ OP_PSHL = 0x40,
+ OP_PSHV,
+ OP_JMP,
+ OP_CALL,
+ OP_NEXT,
+ OP_PSTR,
+ OP_SINT = 0x47,
+ OP_ST,
+ OP_ISTP,
+ OP_DSTP,
+ OP_SWPN,
+ OP_DUPN,
+ OP_POPV,
+ OP_POPE,
+ OP_POPA,
+ OP_JMPZ,
+ OP_DS,
+ OP_IS,
+ OP_DPRA,
+ OP_DPOA,
+ OP_IPRA,
+ OP_IPOA,
+ OP_EXPT,
+ OP_PSHE,
+ OP_PSHA,
+ OP_DYNA,
+ OP_EXPV = 0x5c,
+ OP_COPY = 0x80,
+ OP_REVA,
+ OP_DSC,
+ OP_ISC,
+ OP_WAIT,
+ OP_VS,
+ OP_CMPA = 0xc0,
+ OP_VSC,
+};
+
+struct altera_procinfo {
+ char *name;
+ u8 attrs;
+ struct altera_procinfo *next;
+};
+
+/* This function checks if enough parameters are available on the stack. */
+static int altera_check_stack(int stack_ptr, int count, int *status)
+{
+ if (stack_ptr < count) {
+ *status = -EOVERFLOW;
+ return 0;
+ }
+
+ return 1;
+}
+
+static void altera_export_int(char *key, s32 value)
+{
+ dprintk("Export: key = \"%s\", value = %d\n", key, value);
+}
+
+#define HEX_LINE_CHARS 72
+#define HEX_LINE_BITS (HEX_LINE_CHARS * 4)
+
+static void altera_export_bool_array(char *key, u8 *data, s32 count)
+{
+ char string[HEX_LINE_CHARS + 1];
+ s32 i, offset;
+ u32 size, line, lines, linebits, value, j, k;
+
+ if (count > HEX_LINE_BITS) {
+ dprintk("Export: key = \"%s\", %d bits, value = HEX\n",
+ key, count);
+ lines = (count + (HEX_LINE_BITS - 1)) / HEX_LINE_BITS;
+
+ for (line = 0; line < lines; ++line) {
+ if (line < (lines - 1)) {
+ linebits = HEX_LINE_BITS;
+ size = HEX_LINE_CHARS;
+ offset = count - ((line + 1) * HEX_LINE_BITS);
+ } else {
+ linebits =
+ count - ((lines - 1) * HEX_LINE_BITS);
+ size = (linebits + 3) / 4;
+ offset = 0L;
+ }
+
+ string[size] = '\0';
+ j = size - 1;
+ value = 0;
+
+ for (k = 0; k < linebits; ++k) {
+ i = k + offset;
+ if (data[i >> 3] & (1 << (i & 7)))
+ value |= (1 << (i & 3));
+ if ((i & 3) == 3) {
+ sprintf(&string[j], "%1x", value);
+ value = 0;
+ --j;
+ }
+ }
+ if ((k & 3) > 0)
+ sprintf(&string[j], "%1x", value);
+
+ dprintk("%s\n", string);
+ }
+
+ } else {
+ size = (count + 3) / 4;
+ string[size] = '\0';
+ j = size - 1;
+ value = 0;
+
+ for (i = 0; i < count; ++i) {
+ if (data[i >> 3] & (1 << (i & 7)))
+ value |= (1 << (i & 3));
+ if ((i & 3) == 3) {
+ sprintf(&string[j], "%1x", value);
+ value = 0;
+ --j;
+ }
+ }
+ if ((i & 3) > 0)
+ sprintf(&string[j], "%1x", value);
+
+ dprintk("Export: key = \"%s\", %d bits, value = HEX %s\n",
+ key, count, string);
+ }
+}
+
+static int altera_execute(struct altera_state *astate,
+ u8 *p,
+ s32 program_size,
+ s32 *error_address,
+ int *exit_code,
+ int *format_version)
+{
+ struct altera_config *aconf = astate->config;
+ char *msg_buff = astate->msg_buff;
+ long *stack = astate->stack;
+ int status = 0;
+ u32 first_word = 0L;
+ u32 action_table = 0L;
+ u32 proc_table = 0L;
+ u32 str_table = 0L;
+ u32 sym_table = 0L;
+ u32 data_sect = 0L;
+ u32 code_sect = 0L;
+ u32 debug_sect = 0L;
+ u32 action_count = 0L;
+ u32 proc_count = 0L;
+ u32 sym_count = 0L;
+ long *vars = NULL;
+ s32 *var_size = NULL;
+ char *attrs = NULL;
+ u8 *proc_attributes = NULL;
+ u32 pc;
+ u32 opcode_address;
+ u32 args[3];
+ u32 opcode;
+ u32 name_id;
+ u8 charbuf[4];
+ long long_temp;
+ u32 variable_id;
+ u8 *charptr_temp;
+ u8 *charptr_temp2;
+ long *longptr_temp;
+ int version = 0;
+ int delta = 0;
+ int stack_ptr = 0;
+ u32 arg_count;
+ int done = 0;
+ int bad_opcode = 0;
+ u32 count;
+ u32 index;
+ u32 index2;
+ s32 long_count;
+ s32 long_index;
+ s32 long_index2;
+ u32 i;
+ u32 j;
+ u32 uncomp_size;
+ u32 offset;
+ u32 value;
+ int current_proc = 0;
+ int reverse;
+
+ char *name;
+
+ dprintk("%s\n", __func__);
+
+ /* Read header information */
+ if (program_size > 52L) {
+ first_word = get_unaligned_be32(&p[0]);
+ version = (first_word & 1L);
+ *format_version = version + 1;
+ delta = version * 8;
+
+ action_table = get_unaligned_be32(&p[4]);
+ proc_table = get_unaligned_be32(&p[8]);
+ str_table = get_unaligned_be32(&p[4 + delta]);
+ sym_table = get_unaligned_be32(&p[16 + delta]);
+ data_sect = get_unaligned_be32(&p[20 + delta]);
+ code_sect = get_unaligned_be32(&p[24 + delta]);
+ debug_sect = get_unaligned_be32(&p[28 + delta]);
+ action_count = get_unaligned_be32(&p[40 + delta]);
+ proc_count = get_unaligned_be32(&p[44 + delta]);
+ sym_count = get_unaligned_be32(&p[48 + (2 * delta)]);
+ }
+
+ if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L)) {
+ done = 1;
+ status = -EIO;
+ goto exit_done;
+ }
+
+ if (sym_count <= 0)
+ goto exit_done;
+
+ vars = kzalloc(sym_count * sizeof(long), GFP_KERNEL);
+
+ if (vars == NULL)
+ status = -ENOMEM;
+
+ if (status == 0) {
+ var_size = kzalloc(sym_count * sizeof(s32), GFP_KERNEL);
+
+ if (var_size == NULL)
+ status = -ENOMEM;
+ }
+
+ if (status == 0) {
+ attrs = kzalloc(sym_count, GFP_KERNEL);
+
+ if (attrs == NULL)
+ status = -ENOMEM;
+ }
+
+ if ((status == 0) && (version > 0)) {
+ proc_attributes = kzalloc(proc_count, GFP_KERNEL);
+
+ if (proc_attributes == NULL)
+ status = -ENOMEM;
+ }
+
+ if (status != 0)
+ goto exit_done;
+
+ delta = version * 2;
+
+ for (i = 0; i < sym_count; ++i) {
+ offset = (sym_table + ((11 + delta) * i));
+
+ value = get_unaligned_be32(&p[offset + 3 + delta]);
+
+ attrs[i] = p[offset];
+
+ /* use bit 7 of attribute byte to indicate that
+ this buffer was dynamically allocated
+ and should be freed later */
+ attrs[i] &= 0x7f;
+
+ var_size[i] = get_unaligned_be32(&p[offset + 7 + delta]);
+
+ /*
+ Attribute bits:
+ bit 0: 0 = read-only, 1 = read-write
+ bit 1: 0 = not compressed, 1 = compressed
+ bit 2: 0 = not initialized, 1 = initialized
+ bit 3: 0 = scalar, 1 = array
+ bit 4: 0 = Boolean, 1 = integer
+ bit 5: 0 = declared variable,
+ 1 = compiler created temporary variable
+ */
+
+ if ((attrs[i] & 0x0c) == 0x04)
+ /* initialized scalar variable */
+ vars[i] = value;
+ else if ((attrs[i] & 0x1e) == 0x0e) {
+ /* initialized compressed
+ Boolean array */
+ uncomp_size = get_unaligned_le32(&p[data_sect + value]);
+
+ /* allocate a buffer for the
+ uncompressed data */
+ vars[i] = (long)kzalloc(uncomp_size, GFP_KERNEL);
+ if (vars[i] == 0L)
+ status = -ENOMEM;
+ else {
+ /* set flag so buffer
+ will be freed later */
+ attrs[i] |= 0x80;
+
+ /* uncompress the data */
+ if (altera_shrink(&p[data_sect + value],
+ var_size[i],
+ (u8 *)vars[i],
+ uncomp_size,
+ version) != uncomp_size)
+ /* decompression failed */
+ status = -EIO;
+ else
+ var_size[i] = uncomp_size * 8L;
+
+ }
+ } else if ((attrs[i] & 0x1e) == 0x0c) {
+ /* initialized Boolean array */
+ vars[i] = value + data_sect + (long)p;
+ } else if ((attrs[i] & 0x1c) == 0x1c) {
+ /* initialized integer array */
+ vars[i] = value + data_sect;
+ } else if ((attrs[i] & 0x0c) == 0x08) {
+ /* uninitialized array */
+
+ /* flag attrs so
+ that memory is freed */
+ attrs[i] |= 0x80;
+
+ if (var_size[i] > 0) {
+ u32 size;
+
+ if (attrs[i] & 0x10)
+ /* integer array */
+ size = (var_size[i] * sizeof(s32));
+ else
+ /* Boolean array */
+ size = ((var_size[i] + 7L) / 8L);
+
+ vars[i] = (long)kzalloc(size, GFP_KERNEL);
+
+ if (vars[i] == 0) {
+ status = -ENOMEM;
+ } else {
+ /* zero out memory */
+ for (j = 0; j < size; ++j)
+ ((u8 *)(vars[i]))[j] = 0;
+
+ }
+ } else
+ vars[i] = 0;
+
+ } else
+ vars[i] = 0;
+
+ }
+
+exit_done:
+ if (status != 0)
+ done = 1;
+
+ altera_jinit(astate);
+
+ pc = code_sect;
+ msg_buff[0] = '\0';
+
+ /*
+ For JBC version 2, we will execute the procedures corresponding to
+ the selected ACTION */
+ if (version > 0) {
+ if (aconf->action == NULL) {
+ status = -EINVAL;
+ done = 1;
+ } else {
+ int action_found = 0;
+ for (i = 0; (i < action_count) && !action_found; ++i) {
+ name_id = get_unaligned_be32(&p[action_table + (12 * i)]);
+
+ name = &p[str_table + name_id];
+
+ if (strnicmp(aconf->action, name, strlen(name)) == 0) {
+ action_found = 1;
+ current_proc =
+ get_unaligned_be32(&p[action_table +
+ (12 * i) + 8]);
+ }
+ }
+
+ if (!action_found) {
+ status = -EINVAL;
+ done = 1;
+ }
+ }
+
+ if (status == 0) {
+ int first_time = 1;
+ i = current_proc;
+ while ((i != 0) || first_time) {
+ first_time = 0;
+ /* check procedure attribute byte */
+ proc_attributes[i] =
+ (p[proc_table +
+ (13 * i) + 8] &
+ 0x03);
+
+ /*
+ BIT0 - OPTIONAL
+ BIT1 - RECOMMENDED
+ BIT6 - FORCED OFF
+ BIT7 - FORCED ON
+ */
+
+ i = get_unaligned_be32(&p[proc_table + (13 * i) + 4]);
+ }
+
+ /*
+ Set current_proc to the first procedure to be executed
+ */
+ i = current_proc;
+ while ((i != 0) &&
+ ((proc_attributes[i] == 1) ||
+ ((proc_attributes[i] & 0xc0) == 0x40))) {
+ i = get_unaligned_be32(&p[proc_table + (13 * i) + 4]);
+ }
+
+ if ((i != 0) || ((i == 0) && (current_proc == 0) &&
+ ((proc_attributes[0] != 1) &&
+ ((proc_attributes[0] & 0xc0) != 0x40)))) {
+ current_proc = i;
+ pc = code_sect +
+ get_unaligned_be32(&p[proc_table + (13 * i) + 9]);
+ if ((pc < code_sect) || (pc >= debug_sect))
+ status = -ERANGE;
+ } else
+ /* there are no procedures to execute! */
+ done = 1;
+
+ }
+ }
+
+ msg_buff[0] = '\0';
+
+ while (!done) {
+ opcode = (p[pc] & 0xff);
+ opcode_address = pc;
+ ++pc;
+
+ if (debug > 1)
+ printk("opcode: %02x\n", opcode);
+
+ arg_count = (opcode >> 6) & 3;
+ for (i = 0; i < arg_count; ++i) {
+ args[i] = get_unaligned_be32(&p[pc]);
+ pc += 4;
+ }
+
+ switch (opcode) {
+ case OP_NOP:
+ break;
+ case OP_DUP:
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ stack[stack_ptr] = stack[stack_ptr - 1];
+ ++stack_ptr;
+ }
+ break;
+ case OP_SWP:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ long_temp = stack[stack_ptr - 2];
+ stack[stack_ptr - 2] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+ break;
+ case OP_ADD:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] += stack[stack_ptr];
+ }
+ break;
+ case OP_SUB:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] -= stack[stack_ptr];
+ }
+ break;
+ case OP_MULT:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] *= stack[stack_ptr];
+ }
+ break;
+ case OP_DIV:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] /= stack[stack_ptr];
+ }
+ break;
+ case OP_MOD:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] %= stack[stack_ptr];
+ }
+ break;
+ case OP_SHL:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] <<= stack[stack_ptr];
+ }
+ break;
+ case OP_SHR:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] >>= stack[stack_ptr];
+ }
+ break;
+ case OP_NOT:
+ if (altera_check_stack(stack_ptr, 1, &status))
+ stack[stack_ptr - 1] ^= (-1L);
+
+ break;
+ case OP_AND:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] &= stack[stack_ptr];
+ }
+ break;
+ case OP_OR:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] |= stack[stack_ptr];
+ }
+ break;
+ case OP_XOR:
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ --stack_ptr;
+ stack[stack_ptr - 1] ^= stack[stack_ptr];
+ }
+ break;
+ case OP_INV:
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ stack[stack_ptr - 1] = stack[stack_ptr - 1] ? 0L : 1L;
+ break;
+ case OP_GT:
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ --stack_ptr;
+ stack[stack_ptr - 1] =
+ (stack[stack_ptr - 1] > stack[stack_ptr]) ?
+ 1L : 0L;
+
+ break;
+ case OP_LT:
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ --stack_ptr;
+ stack[stack_ptr - 1] =
+ (stack[stack_ptr - 1] < stack[stack_ptr]) ?
+ 1L : 0L;
+
+ break;
+ case OP_RET:
+ if ((version > 0) && (stack_ptr == 0)) {
+ /*
+ We completed one of the main procedures
+ of an ACTION.
+ Find the next procedure
+ to be executed and jump to it.
+ If there are no more procedures, then EXIT.
+ */
+ i = get_unaligned_be32(&p[proc_table +
+ (13 * current_proc) + 4]);
+ while ((i != 0) &&
+ ((proc_attributes[i] == 1) ||
+ ((proc_attributes[i] & 0xc0) == 0x40)))
+ i = get_unaligned_be32(&p[proc_table +
+ (13 * i) + 4]);
+
+ if (i == 0) {
+ /*
+ there are no procedures to execute! */
+ done = 1;
+ *exit_code = 0; /* success */
+ } else {
+ current_proc = i;
+ pc = code_sect + get_unaligned_be32(
+ &p[proc_table +
+ (13 * i) + 9]);
+ if ((pc < code_sect) ||
+ (pc >= debug_sect))
+ status = -ERANGE;
+ }
+
+ } else
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ pc = stack[--stack_ptr] + code_sect;
+ if ((pc <= code_sect) ||
+ (pc >= debug_sect))
+ status = -ERANGE;
+
+ }
+
+ break;
+ case OP_CMPS:
+ /*
+ Array short compare
+ ...stack 0 is source 1 value
+ ...stack 1 is source 2 value
+ ...stack 2 is mask value
+ ...stack 3 is count
+ */
+ if (altera_check_stack(stack_ptr, 4, &status)) {
+ s32 a = stack[--stack_ptr];
+ s32 b = stack[--stack_ptr];
+ long_temp = stack[--stack_ptr];
+ count = stack[stack_ptr - 1];
+
+ if ((count < 1) || (count > 32))
+ status = -ERANGE;
+ else {
+ long_temp &= ((-1L) >> (32 - count));
+
+ stack[stack_ptr - 1] =
+ ((a & long_temp) == (b & long_temp))
+ ? 1L : 0L;
+ }
+ }
+ break;
+ case OP_PINT:
+ /*
+ PRINT add integer
+ ...stack 0 is integer value
+ */
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ sprintf(&msg_buff[strlen(msg_buff)],
+ "%ld", stack[--stack_ptr]);
+ break;
+ case OP_PRNT:
+ /* PRINT finish */
+ if (debug)
+ printk(msg_buff, "\n");
+
+ msg_buff[0] = '\0';
+ break;
+ case OP_DSS:
+ /*
+ DRSCAN short
+ ...stack 0 is scan data
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_temp = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_drscan(astate, count, charbuf, 0);
+ break;
+ case OP_DSSC:
+ /*
+ DRSCAN short with capture
+ ...stack 0 is scan data
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_temp = stack[--stack_ptr];
+ count = stack[stack_ptr - 1];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_swap_dr(astate, count, charbuf,
+ 0, charbuf, 0);
+ stack[stack_ptr - 1] = get_unaligned_le32(&charbuf[0]);
+ break;
+ case OP_ISS:
+ /*
+ IRSCAN short
+ ...stack 0 is scan data
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_temp = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_irscan(astate, count, charbuf, 0);
+ break;
+ case OP_ISSC:
+ /*
+ IRSCAN short with capture
+ ...stack 0 is scan data
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_temp = stack[--stack_ptr];
+ count = stack[stack_ptr - 1];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_swap_ir(astate, count, charbuf,
+ 0, charbuf, 0);
+ stack[stack_ptr - 1] = get_unaligned_le32(&charbuf[0]);
+ break;
+ case OP_DPR:
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ count = stack[--stack_ptr];
+ status = altera_set_dr_pre(&astate->js, count, 0, NULL);
+ break;
+ case OP_DPRL:
+ /*
+ DRPRE with literal data
+ ...stack 0 is count
+ ...stack 1 is literal data
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ count = stack[--stack_ptr];
+ long_temp = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_set_dr_pre(&astate->js, count, 0, charbuf);
+ break;
+ case OP_DPO:
+ /*
+ DRPOST
+ ...stack 0 is count
+ */
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ count = stack[--stack_ptr];
+ status = altera_set_dr_post(&astate->js, count, 0, NULL);
+ }
+ break;
+ case OP_DPOL:
+ /*
+ DRPOST with literal data
+ ...stack 0 is count
+ ...stack 1 is literal data
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ count = stack[--stack_ptr];
+ long_temp = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_set_dr_post(&astate->js, count, 0, charbuf);
+ break;
+ case OP_IPR:
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ count = stack[--stack_ptr];
+ status = altera_set_ir_pre(&astate->js, count, 0, NULL);
+ }
+ break;
+ case OP_IPRL:
+ /*
+ IRPRE with literal data
+ ...stack 0 is count
+ ...stack 1 is literal data
+ */
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ count = stack[--stack_ptr];
+ long_temp = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_set_ir_pre(&astate->js, count, 0, charbuf);
+ }
+ break;
+ case OP_IPO:
+ /*
+ IRPOST
+ ...stack 0 is count
+ */
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ count = stack[--stack_ptr];
+ status = altera_set_ir_post(&astate->js, count, 0, NULL);
+ }
+ break;
+ case OP_IPOL:
+ /*
+ IRPOST with literal data
+ ...stack 0 is count
+ ...stack 1 is literal data
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ count = stack[--stack_ptr];
+ long_temp = stack[--stack_ptr];
+ put_unaligned_le32(long_temp, &charbuf[0]);
+ status = altera_set_ir_post(&astate->js, count, 0, charbuf);
+ break;
+ case OP_PCHR:
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ u8 ch;
+ count = strlen(msg_buff);
+ ch = (char) stack[--stack_ptr];
+ if ((ch < 1) || (ch > 127)) {
+ /*
+ character code out of range
+ instead of flagging an error,
+ force the value to 127 */
+ ch = 127;
+ }
+ msg_buff[count] = ch;
+ msg_buff[count + 1] = '\0';
+ }
+ break;
+ case OP_EXIT:
+ if (altera_check_stack(stack_ptr, 1, &status))
+ *exit_code = stack[--stack_ptr];
+
+ done = 1;
+ break;
+ case OP_EQU:
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ --stack_ptr;
+ stack[stack_ptr - 1] =
+ (stack[stack_ptr - 1] == stack[stack_ptr]) ?
+ 1L : 0L;
+ break;
+ case OP_POPT:
+ if (altera_check_stack(stack_ptr, 1, &status))
+ --stack_ptr;
+
+ break;
+ case OP_ABS:
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ if (stack[stack_ptr - 1] < 0)
+ stack[stack_ptr - 1] = 0 - stack[stack_ptr - 1];
+
+ break;
+ case OP_BCH0:
+ /*
+ Batch operation 0
+ SWP
+ SWPN 7
+ SWP
+ SWPN 6
+ DUPN 8
+ SWPN 2
+ SWP
+ DUPN 6
+ DUPN 6
+ */
+
+ /* SWP */
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ long_temp = stack[stack_ptr - 2];
+ stack[stack_ptr - 2] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* SWPN 7 */
+ index = 7 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ long_temp = stack[stack_ptr - index];
+ stack[stack_ptr - index] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* SWP */
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ long_temp = stack[stack_ptr - 2];
+ stack[stack_ptr - 2] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* SWPN 6 */
+ index = 6 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ long_temp = stack[stack_ptr - index];
+ stack[stack_ptr - index] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* DUPN 8 */
+ index = 8 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ stack[stack_ptr] = stack[stack_ptr - index];
+ ++stack_ptr;
+ }
+
+ /* SWPN 2 */
+ index = 2 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ long_temp = stack[stack_ptr - index];
+ stack[stack_ptr - index] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* SWP */
+ if (altera_check_stack(stack_ptr, 2, &status)) {
+ long_temp = stack[stack_ptr - 2];
+ stack[stack_ptr - 2] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+
+ /* DUPN 6 */
+ index = 6 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ stack[stack_ptr] = stack[stack_ptr - index];
+ ++stack_ptr;
+ }
+
+ /* DUPN 6 */
+ index = 6 + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ stack[stack_ptr] = stack[stack_ptr - index];
+ ++stack_ptr;
+ }
+ break;
+ case OP_PSH0:
+ stack[stack_ptr++] = 0;
+ break;
+ case OP_PSHL:
+ stack[stack_ptr++] = (s32) args[0];
+ break;
+ case OP_PSHV:
+ stack[stack_ptr++] = vars[args[0]];
+ break;
+ case OP_JMP:
+ pc = args[0] + code_sect;
+ if ((pc < code_sect) || (pc >= debug_sect))
+ status = -ERANGE;
+ break;
+ case OP_CALL:
+ stack[stack_ptr++] = pc;
+ pc = args[0] + code_sect;
+ if ((pc < code_sect) || (pc >= debug_sect))
+ status = -ERANGE;
+ break;
+ case OP_NEXT:
+ /*
+ Process FOR / NEXT loop
+ ...argument 0 is variable ID
+ ...stack 0 is step value
+ ...stack 1 is end value
+ ...stack 2 is top address
+ */
+ if (altera_check_stack(stack_ptr, 3, &status)) {
+ s32 step = stack[stack_ptr - 1];
+ s32 end = stack[stack_ptr - 2];
+ s32 top = stack[stack_ptr - 3];
+ s32 iterator = vars[args[0]];
+ int break_out = 0;
+
+ if (step < 0) {
+ if (iterator <= end)
+ break_out = 1;
+ } else if (iterator >= end)
+ break_out = 1;
+
+ if (break_out) {
+ stack_ptr -= 3;
+ } else {
+ vars[args[0]] = iterator + step;
+ pc = top + code_sect;
+ if ((pc < code_sect) ||
+ (pc >= debug_sect))
+ status = -ERANGE;
+ }
+ }
+ break;
+ case OP_PSTR:
+ /*
+ PRINT add string
+ ...argument 0 is string ID
+ */
+ count = strlen(msg_buff);
+ strlcpy(&msg_buff[count],
+ &p[str_table + args[0]],
+ ALTERA_MESSAGE_LENGTH - count);
+ break;
+ case OP_SINT:
+ /*
+ STATE intermediate state
+ ...argument 0 is state code
+ */
+ status = altera_goto_jstate(astate, args[0]);
+ break;
+ case OP_ST:
+ /*
+ STATE final state
+ ...argument 0 is state code
+ */
+ status = altera_goto_jstate(astate, args[0]);
+ break;
+ case OP_ISTP:
+ /*
+ IRSTOP state
+ ...argument 0 is state code
+ */
+ status = altera_set_irstop(&astate->js, args[0]);
+ break;
+ case OP_DSTP:
+ /*
+ DRSTOP state
+ ...argument 0 is state code
+ */
+ status = altera_set_drstop(&astate->js, args[0]);
+ break;
+
+ case OP_SWPN:
+ /*
+ Exchange top with Nth stack value
+ ...argument 0 is 0-based stack entry
+ to swap with top element
+ */
+ index = (args[0]) + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ long_temp = stack[stack_ptr - index];
+ stack[stack_ptr - index] = stack[stack_ptr - 1];
+ stack[stack_ptr - 1] = long_temp;
+ }
+ break;
+ case OP_DUPN:
+ /*
+ Duplicate Nth stack value
+ ...argument 0 is 0-based stack entry to duplicate
+ */
+ index = (args[0]) + 1;
+ if (altera_check_stack(stack_ptr, index, &status)) {
+ stack[stack_ptr] = stack[stack_ptr - index];
+ ++stack_ptr;
+ }
+ break;
+ case OP_POPV:
+ /*
+ * Pop stack into scalar variable
+ ...argument 0 is variable ID
+ ...stack 0 is value
+ */
+ if (altera_check_stack(stack_ptr, 1, &status))
+ vars[args[0]] = stack[--stack_ptr];
+
+ break;
+ case OP_POPE:
+ /*
+ Pop stack into integer array element
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ ...stack 1 is value
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ variable_id = args[0];
+
+ /*
+ If variable is read-only,
+ convert to writable array */
+ if ((version > 0) &&
+ ((attrs[variable_id] & 0x9c) == 0x1c)) {
+ /* Allocate a writable buffer for this array */
+ count = var_size[variable_id];
+ long_temp = vars[variable_id];
+ longptr_temp = kzalloc(count * sizeof(long),
+ GFP_KERNEL);
+ vars[variable_id] = (long)longptr_temp;
+
+ if (vars[variable_id] == 0) {
+ status = -ENOMEM;
+ break;
+ }
+
+ /* copy previous contents into buffer */
+ for (i = 0; i < count; ++i) {
+ longptr_temp[i] = get_unaligned_be32(&p[long_temp]);
+ long_temp += sizeof(long);
+ }
+
+ /*
+ set bit 7 - buffer was
+ dynamically allocated */
+ attrs[variable_id] |= 0x80;
+
+ /* clear bit 2 - variable is writable */
+ attrs[variable_id] &= ~0x04;
+ attrs[variable_id] |= 0x01;
+
+ }
+
+ /* check that variable is a writable integer array */
+ if ((attrs[variable_id] & 0x1c) != 0x18)
+ status = -ERANGE;
+ else {
+ longptr_temp = (long *)vars[variable_id];
+
+ /* pop the array index */
+ index = stack[--stack_ptr];
+
+ /* pop the value and store it into the array */
+ longptr_temp[index] = stack[--stack_ptr];
+ }
+
+ break;
+ case OP_POPA:
+ /*
+ Pop stack into Boolean array
+ ...argument 0 is variable ID
+ ...stack 0 is count
+ ...stack 1 is array index
+ ...stack 2 is value
+ */
+ if (!altera_check_stack(stack_ptr, 3, &status))
+ break;
+ variable_id = args[0];
+
+ /*
+ If variable is read-only, convert to writable array */
+ if ((version > 0) &&
+ ((attrs[variable_id] & 0x9c) == 0x0c)) {
+ /* Allocate a writable buffer for this array */
+ long_temp =
+ (var_size[variable_id] + 7L) >> 3L;
+ charptr_temp2 = (u8 *)vars[variable_id];
+ charptr_temp =
+ kzalloc(long_temp, GFP_KERNEL);
+ vars[variable_id] = (long)charptr_temp;
+
+ if (vars[variable_id] == 0) {
+ status = -ENOMEM;
+ break;
+ }
+
+ /* zero the buffer */
+ for (long_index = 0L;
+ long_index < long_temp;
+ ++long_index) {
+ charptr_temp[long_index] = 0;
+ }
+
+ /* copy previous contents into buffer */
+ for (long_index = 0L;
+ long_index < var_size[variable_id];
+ ++long_index) {
+ long_index2 = long_index;
+
+ if (charptr_temp2[long_index2 >> 3] &
+ (1 << (long_index2 & 7))) {
+ charptr_temp[long_index >> 3] |=
+ (1 << (long_index & 7));
+ }
+ }
+
+ /*
+ set bit 7 - buffer was dynamically allocated */
+ attrs[variable_id] |= 0x80;
+
+ /* clear bit 2 - variable is writable */
+ attrs[variable_id] &= ~0x04;
+ attrs[variable_id] |= 0x01;
+
+ }
+
+ /*
+ check that variable is
+ a writable Boolean array */
+ if ((attrs[variable_id] & 0x1c) != 0x08) {
+ status = -ERANGE;
+ break;
+ }
+
+ charptr_temp = (u8 *)vars[variable_id];
+
+ /* pop the count (number of bits to copy) */
+ long_count = stack[--stack_ptr];
+
+ /* pop the array index */
+ long_index = stack[--stack_ptr];
+
+ reverse = 0;
+
+ if (version > 0) {
+ /*
+ stack 0 = array right index
+ stack 1 = array left index */
+
+ if (long_index > long_count) {
+ reverse = 1;
+ long_temp = long_count;
+ long_count = 1 + long_index -
+ long_count;
+ long_index = long_temp;
+
+ /* reverse POPA is not supported */
+ status = -ERANGE;
+ break;
+ } else
+ long_count = 1 + long_count -
+ long_index;
+
+ }
+
+ /* pop the data */
+ long_temp = stack[--stack_ptr];
+
+ if (long_count < 1) {
+ status = -ERANGE;
+ break;
+ }
+
+ for (i = 0; i < long_count; ++i) {
+ if (long_temp & (1L << (s32) i))
+ charptr_temp[long_index >> 3L] |=
+ (1L << (long_index & 7L));
+ else
+ charptr_temp[long_index >> 3L] &=
+ ~(1L << (long_index & 7L));
+
+ ++long_index;
+ }
+
+ break;
+ case OP_JMPZ:
+ /*
+ Pop stack and branch if zero
+ ...argument 0 is address
+ ...stack 0 is condition value
+ */
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ if (stack[--stack_ptr] == 0) {
+ pc = args[0] + code_sect;
+ if ((pc < code_sect) ||
+ (pc >= debug_sect))
+ status = -ERANGE;
+ }
+ }
+ break;
+ case OP_DS:
+ case OP_IS:
+ /*
+ DRSCAN
+ IRSCAN
+ ...argument 0 is scan data variable ID
+ ...stack 0 is array index
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_index = stack[--stack_ptr];
+ long_count = stack[--stack_ptr];
+ reverse = 0;
+ if (version > 0) {
+ /*
+ stack 0 = array right index
+ stack 1 = array left index
+ stack 2 = count */
+ long_temp = long_count;
+ long_count = stack[--stack_ptr];
+
+ if (long_index > long_temp) {
+ reverse = 1;
+ long_index = long_temp;
+ }
+ }
+
+ charptr_temp = (u8 *)vars[args[0]];
+
+ if (reverse) {
+ /*
+ allocate a buffer and reverse the data order */
+ charptr_temp2 = charptr_temp;
+ charptr_temp = kzalloc((long_count >> 3) + 1,
+ GFP_KERNEL);
+ if (charptr_temp == NULL) {
+ status = -ENOMEM;
+ break;
+ }
+
+ long_temp = long_index + long_count - 1;
+ long_index2 = 0;
+ while (long_index2 < long_count) {
+ if (charptr_temp2[long_temp >> 3] &
+ (1 << (long_temp & 7)))
+ charptr_temp[long_index2 >> 3] |= (1 << (long_index2 & 7));
+ else
+ charptr_temp[long_index2 >> 3] &= ~(1 << (long_index2 & 7));
+
+ --long_temp;
+ ++long_index2;
+ }
+ }
+
+ if (opcode == 0x51) /* DS */
+ status = altera_drscan(astate, long_count,
+ charptr_temp, long_index);
+ else /* IS */
+ status = altera_irscan(astate, long_count,
+ charptr_temp, long_index);
+
+ if (reverse)
+ kfree(charptr_temp);
+
+ break;
+ case OP_DPRA:
+ /*
+ DRPRE with array data
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ index = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+
+ if (version > 0)
+ /*
+ stack 0 = array right index
+ stack 1 = array left index */
+ count = 1 + count - index;
+
+ charptr_temp = (u8 *)vars[args[0]];
+ status = altera_set_dr_pre(&astate->js, count, index,
+ charptr_temp);
+ break;
+ case OP_DPOA:
+ /*
+ DRPOST with array data
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ index = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+
+ if (version > 0)
+ /*
+ stack 0 = array right index
+ stack 1 = array left index */
+ count = 1 + count - index;
+
+ charptr_temp = (u8 *)vars[args[0]];
+ status = altera_set_dr_post(&astate->js, count, index,
+ charptr_temp);
+ break;
+ case OP_IPRA:
+ /*
+ IRPRE with array data
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ index = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+
+ if (version > 0)
+ /*
+ stack 0 = array right index
+ stack 1 = array left index */
+ count = 1 + count - index;
+
+ charptr_temp = (u8 *)vars[args[0]];
+ status = altera_set_ir_pre(&astate->js, count, index,
+ charptr_temp);
+
+ break;
+ case OP_IPOA:
+ /*
+ IRPOST with array data
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ ...stack 1 is count
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ index = stack[--stack_ptr];
+ count = stack[--stack_ptr];
+
+ if (version > 0)
+ /*
+ stack 0 = array right index
+ stack 1 = array left index */
+ count = 1 + count - index;
+
+ charptr_temp = (u8 *)vars[args[0]];
+ status = altera_set_ir_post(&astate->js, count, index,
+ charptr_temp);
+
+ break;
+ case OP_EXPT:
+ /*
+ EXPORT
+ ...argument 0 is string ID
+ ...stack 0 is integer expression
+ */
+ if (altera_check_stack(stack_ptr, 1, &status)) {
+ name = &p[str_table + args[0]];
+ long_temp = stack[--stack_ptr];
+ altera_export_int(name, long_temp);
+ }
+ break;
+ case OP_PSHE:
+ /*
+ Push integer array element
+ ...argument 0 is variable ID
+ ...stack 0 is array index
+ */
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ variable_id = args[0];
+ index = stack[stack_ptr - 1];
+
+ /* check variable type */
+ if ((attrs[variable_id] & 0x1f) == 0x19) {
+ /* writable integer array */
+ longptr_temp = (long *)vars[variable_id];
+ stack[stack_ptr - 1] = longptr_temp[index];
+ } else if ((attrs[variable_id] & 0x1f) == 0x1c) {
+ /* read-only integer array */
+ long_temp = vars[variable_id] +
+ (sizeof(long) * index);
+ stack[stack_ptr - 1] =
+ get_unaligned_be32(&p[long_temp]);
+ } else
+ status = -ERANGE;
+
+ break;
+ case OP_PSHA:
+ /*
+ Push Boolean array
+ ...argument 0 is variable ID
+ ...stack 0 is count
+ ...stack 1 is array index
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ variable_id = args[0];
+
+ /* check that variable is a Boolean array */
+ if ((attrs[variable_id] & 0x18) != 0x08) {
+ status = -ERANGE;
+ break;
+ }
+
+ charptr_temp = (u8 *)vars[variable_id];
+
+ /* pop the count (number of bits to copy) */
+ count = stack[--stack_ptr];
+
+ /* pop the array index */
+ index = stack[stack_ptr - 1];
+
+ if (version > 0)
+ /* stack 0 = array right index */
+ /* stack 1 = array left index */
+ count = 1 + count - index;
+
+ if ((count < 1) || (count > 32)) {
+ status = -ERANGE;
+ break;
+ }
+
+ long_temp = 0L;
+
+ for (i = 0; i < count; ++i)
+ if (charptr_temp[(i + index) >> 3] &
+ (1 << ((i + index) & 7)))
+ long_temp |= (1L << i);
+
+ stack[stack_ptr - 1] = long_temp;
+
+ break;
+ case OP_DYNA:
+ /*
+ Dynamically change size of array
+ ...argument 0 is variable ID
+ ...stack 0 is new size
+ */
+ if (!altera_check_stack(stack_ptr, 1, &status))
+ break;
+ variable_id = args[0];
+ long_temp = stack[--stack_ptr];
+
+ if (long_temp > var_size[variable_id]) {
+ var_size[variable_id] = long_temp;
+
+ if (attrs[variable_id] & 0x10)
+ /* allocate integer array */
+ long_temp *= sizeof(long);
+ else
+ /* allocate Boolean array */
+ long_temp = (long_temp + 7) >> 3;
+
+ /*
+ If the buffer was previously allocated,
+ free it */
+ if (attrs[variable_id] & 0x80) {
+ kfree((void *)vars[variable_id]);
+ vars[variable_id] = 0;
+ }
+
+ /*
+ Allocate a new buffer
+ of the requested size */
+ vars[variable_id] = (long)
+ kzalloc(long_temp, GFP_KERNEL);
+
+ if (vars[variable_id] == 0) {
+ status = -ENOMEM;
+ break;
+ }
+
+ /*
+ Set the attribute bit to indicate that
+ this buffer was dynamically allocated and
+ should be freed later */
+ attrs[variable_id] |= 0x80;
+
+ /* zero out memory */
+ count = ((var_size[variable_id] + 7L) /
+ 8L);
+ charptr_temp = (u8 *)(vars[variable_id]);
+ for (index = 0; index < count; ++index)
+ charptr_temp[index] = 0;
+
+ }
+
+ break;
+ case OP_EXPV:
+ /*
+ Export Boolean array
+ ...argument 0 is string ID
+ ...stack 0 is variable ID
+ ...stack 1 is array right index
+ ...stack 2 is array left index
+ */
+ if (!altera_check_stack(stack_ptr, 3, &status))
+ break;
+ if (version == 0) {
+ /* EXPV is not supported in JBC 1.0 */
+ bad_opcode = 1;
+ break;
+ }
+ name = &p[str_table + args[0]];
+ variable_id = stack[--stack_ptr];
+ long_index = stack[--stack_ptr];/* right indx */
+ long_index2 = stack[--stack_ptr];/* left indx */
+
+ if (long_index > long_index2) {
+ /* reverse indices not supported */
+ status = -ERANGE;
+ break;
+ }
+
+ long_count = 1 + long_index2 - long_index;
+
+ charptr_temp = (u8 *)vars[variable_id];
+ charptr_temp2 = NULL;
+
+ if ((long_index & 7L) != 0) {
+ s32 k = long_index;
+ charptr_temp2 =
+ kzalloc(((long_count + 7L) / 8L),
+ GFP_KERNEL);
+ if (charptr_temp2 == NULL) {
+ status = -ENOMEM;
+ break;
+ }
+
+ for (i = 0; i < long_count; ++i) {
+ if (charptr_temp[k >> 3] &
+ (1 << (k & 7)))
+ charptr_temp2[i >> 3] |=
+ (1 << (i & 7));
+ else
+ charptr_temp2[i >> 3] &=
+ ~(1 << (i & 7));
+
+ ++k;
+ }
+ charptr_temp = charptr_temp2;
+
+ } else if (long_index != 0)
+ charptr_temp = &charptr_temp[long_index >> 3];
+
+ altera_export_bool_array(name, charptr_temp,
+ long_count);
+
+ /* free allocated buffer */
+ if ((long_index & 7L) != 0)
+ kfree(charptr_temp2);
+
+ break;
+ case OP_COPY: {
+ /*
+ Array copy
+ ...argument 0 is dest ID
+ ...argument 1 is source ID
+ ...stack 0 is count
+ ...stack 1 is dest index
+ ...stack 2 is source index
+ */
+ s32 copy_count;
+ s32 copy_index;
+ s32 copy_index2;
+ s32 destleft;
+ s32 src_count;
+ s32 dest_count;
+ int src_reverse = 0;
+ int dest_reverse = 0;
+
+ if (!altera_check_stack(stack_ptr, 3, &status))
+ break;
+
+ copy_count = stack[--stack_ptr];
+ copy_index = stack[--stack_ptr];
+ copy_index2 = stack[--stack_ptr];
+ reverse = 0;
+
+ if (version > 0) {
+ /*
+ stack 0 = source right index
+ stack 1 = source left index
+ stack 2 = destination right index
+ stack 3 = destination left index */
+ destleft = stack[--stack_ptr];
+
+ if (copy_count > copy_index) {
+ src_reverse = 1;
+ reverse = 1;
+ src_count = 1 + copy_count - copy_index;
+ /* copy_index = source start index */
+ } else {
+ src_count = 1 + copy_index - copy_count;
+ /* source start index */
+ copy_index = copy_count;
+ }
+
+ if (copy_index2 > destleft) {
+ dest_reverse = 1;
+ reverse = !reverse;
+ dest_count = 1 + copy_index2 - destleft;
+ /* destination start index */
+ copy_index2 = destleft;
+ } else
+ dest_count = 1 + destleft - copy_index2;
+ /*
+ copy_index2 = destination start index */
+
+ copy_count = (src_count < dest_count) ?
+ src_count : dest_count;
+
+ if ((src_reverse || dest_reverse) &&
+ (src_count != dest_count))
+ /*
+ If either the source or destination
+ is reversed, we can't tolerate
+ a length mismatch, because we
+ "left justify" the arrays when copying.
+ This won't work correctly
+ with reversed arrays. */
+ status = -ERANGE;
+
+ }
+
+ count = copy_count;
+ index = copy_index;
+ index2 = copy_index2;
+
+ /*
+ If destination is a read-only array, allocate a buffer
+ and convert it to a writable array */
+ variable_id = args[1];
+ if ((version > 0) &&
+ ((attrs[variable_id] & 0x9c) == 0x0c)) {
+ /* Allocate a writable buffer for this array */
+ long_temp =
+ (var_size[variable_id] + 7L) >> 3L;
+ charptr_temp2 = (u8 *)vars[variable_id];
+ charptr_temp =
+ kzalloc(long_temp, GFP_KERNEL);
+ vars[variable_id] = (long)charptr_temp;
+
+ if (vars[variable_id] == 0) {
+ status = -ENOMEM;
+ break;
+ }
+
+ /* zero the buffer */
+ for (long_index = 0L; long_index < long_temp;
+ ++long_index)
+ charptr_temp[long_index] = 0;
+
+ /* copy previous contents into buffer */
+ for (long_index = 0L;
+ long_index < var_size[variable_id];
+ ++long_index) {
+ long_index2 = long_index;
+
+ if (charptr_temp2[long_index2 >> 3] &
+ (1 << (long_index2 & 7)))
+ charptr_temp[long_index >> 3] |=
+ (1 << (long_index & 7));
+
+ }
+
+ /*
+ set bit 7 - buffer was dynamically allocated */
+ attrs[variable_id] |= 0x80;
+
+ /* clear bit 2 - variable is writable */
+ attrs[variable_id] &= ~0x04;
+ attrs[variable_id] |= 0x01;
+ }
+
+ charptr_temp = (u8 *)vars[args[1]];
+ charptr_temp2 = (u8 *)vars[args[0]];
+
+ /* check if destination is a writable Boolean array */
+ if ((attrs[args[1]] & 0x1c) != 0x08) {
+ status = -ERANGE;
+ break;
+ }
+
+ if (count < 1) {
+ status = -ERANGE;
+ break;
+ }
+
+ if (reverse)
+ index2 += (count - 1);
+
+ for (i = 0; i < count; ++i) {
+ if (charptr_temp2[index >> 3] &
+ (1 << (index & 7)))
+ charptr_temp[index2 >> 3] |=
+ (1 << (index2 & 7));
+ else
+ charptr_temp[index2 >> 3] &=
+ ~(1 << (index2 & 7));
+
+ ++index;
+ if (reverse)
+ --index2;
+ else
+ ++index2;
+ }
+
+ break;
+ }
+ case OP_DSC:
+ case OP_ISC: {
+ /*
+ DRSCAN with capture
+ IRSCAN with capture
+ ...argument 0 is scan data variable ID
+ ...argument 1 is capture variable ID
+ ...stack 0 is capture index
+ ...stack 1 is scan data index
+ ...stack 2 is count
+ */
+ s32 scan_right, scan_left;
+ s32 capture_count = 0;
+ s32 scan_count = 0;
+ s32 capture_index;
+ s32 scan_index;
+
+ if (!altera_check_stack(stack_ptr, 3, &status))
+ break;
+
+ capture_index = stack[--stack_ptr];
+ scan_index = stack[--stack_ptr];
+
+ if (version > 0) {
+ /*
+ stack 0 = capture right index
+ stack 1 = capture left index
+ stack 2 = scan right index
+ stack 3 = scan left index
+ stack 4 = count */
+ scan_right = stack[--stack_ptr];
+ scan_left = stack[--stack_ptr];
+ capture_count = 1 + scan_index - capture_index;
+ scan_count = 1 + scan_left - scan_right;
+ scan_index = scan_right;
+ }
+
+ long_count = stack[--stack_ptr];
+ /*
+ If capture array is read-only, allocate a buffer
+ and convert it to a writable array */
+ variable_id = args[1];
+ if ((version > 0) &&
+ ((attrs[variable_id] & 0x9c) == 0x0c)) {
+ /* Allocate a writable buffer for this array */
+ long_temp =
+ (var_size[variable_id] + 7L) >> 3L;
+ charptr_temp2 = (u8 *)vars[variable_id];
+ charptr_temp =
+ kzalloc(long_temp, GFP_KERNEL);
+ vars[variable_id] = (long)charptr_temp;
+
+ if (vars[variable_id] == 0) {
+ status = -ENOMEM;
+ break;
+ }
+
+ /* zero the buffer */
+ for (long_index = 0L; long_index < long_temp;
+ ++long_index)
+ charptr_temp[long_index] = 0;
+
+ /* copy previous contents into buffer */
+ for (long_index = 0L;
+ long_index < var_size[variable_id];
+ ++long_index) {
+ long_index2 = long_index;
+
+ if (charptr_temp2[long_index2 >> 3] &
+ (1 << (long_index2 & 7)))
+ charptr_temp[long_index >> 3] |=
+ (1 << (long_index & 7));
+
+ }
+
+ /*
+ set bit 7 - buffer was
+ dynamically allocated */
+ attrs[variable_id] |= 0x80;
+
+ /* clear bit 2 - variable is writable */
+ attrs[variable_id] &= ~0x04;
+ attrs[variable_id] |= 0x01;
+
+ }
+
+ charptr_temp = (u8 *)vars[args[0]];
+ charptr_temp2 = (u8 *)vars[args[1]];
+
+ if ((version > 0) &&
+ ((long_count > capture_count) ||
+ (long_count > scan_count))) {
+ status = -ERANGE;
+ break;
+ }
+
+ /*
+ check that capture array
+ is a writable Boolean array */
+ if ((attrs[args[1]] & 0x1c) != 0x08) {
+ status = -ERANGE;
+ break;
+ }
+
+ if (status == 0) {
+ if (opcode == 0x82) /* DSC */
+ status = altera_swap_dr(astate,
+ long_count,
+ charptr_temp,
+ scan_index,
+ charptr_temp2,
+ capture_index);
+ else /* ISC */
+ status = altera_swap_ir(astate,
+ long_count,
+ charptr_temp,
+ scan_index,
+ charptr_temp2,
+ capture_index);
+
+ }
+
+ break;
+ }
+ case OP_WAIT:
+ /*
+ WAIT
+ ...argument 0 is wait state
+ ...argument 1 is end state
+ ...stack 0 is cycles
+ ...stack 1 is microseconds
+ */
+ if (!altera_check_stack(stack_ptr, 2, &status))
+ break;
+ long_temp = stack[--stack_ptr];
+
+ if (long_temp != 0L)
+ status = altera_wait_cycles(astate, long_temp,
+ args[0]);
+
+ long_temp = stack[--stack_ptr];
+
+ if ((status == 0) && (long_temp != 0L))
+ status = altera_wait_msecs(astate,
+ long_temp,
+ args[0]);
+
+ if ((status == 0) && (args[1] != args[0]))
+ status = altera_goto_jstate(astate,
+ args[1]);
+
+ if (version > 0) {
+ --stack_ptr; /* throw away MAX cycles */
+ --stack_ptr; /* throw away MAX microseconds */
+ }
+ break;
+ case OP_CMPA: {
+ /*
+ Array compare
+ ...argument 0 is source 1 ID
+ ...argument 1 is source 2 ID
+ ...argument 2 is mask ID
+ ...stack 0 is source 1 index
+ ...stack 1 is source 2 index
+ ...stack 2 is mask index
+ ...stack 3 is count
+ */
+ s32 a, b;
+ u8 *source1 = (u8 *)vars[args[0]];
+ u8 *source2 = (u8 *)vars[args[1]];
+ u8 *mask = (u8 *)vars[args[2]];
+ u32 index1;
+ u32 index2;
+ u32 mask_index;
+
+ if (!altera_check_stack(stack_ptr, 4, &status))
+ break;
+
+ index1 = stack[--stack_ptr];
+ index2 = stack[--stack_ptr];
+ mask_index = stack[--stack_ptr];
+ long_count = stack[--stack_ptr];
+
+ if (version > 0) {
+ /*
+ stack 0 = source 1 right index
+ stack 1 = source 1 left index
+ stack 2 = source 2 right index
+ stack 3 = source 2 left index
+ stack 4 = mask right index
+ stack 5 = mask left index */
+ s32 mask_right = stack[--stack_ptr];
+ s32 mask_left = stack[--stack_ptr];
+ /* source 1 count */
+ a = 1 + index2 - index1;
+ /* source 2 count */
+ b = 1 + long_count - mask_index;
+ a = (a < b) ? a : b;
+ /* mask count */
+ b = 1 + mask_left - mask_right;
+ a = (a < b) ? a : b;
+ /* source 2 start index */
+ index2 = mask_index;
+ /* mask start index */
+ mask_index = mask_right;
+ long_count = a;
+ }
+
+ long_temp = 1L;
+
+ if (long_count < 1)
+ status = -ERANGE;
+ else {
+ count = long_count;
+
+ for (i = 0; i < count; ++i) {
+ if (mask[mask_index >> 3] &
+ (1 << (mask_index & 7))) {
+ a = source1[index1 >> 3] &
+ (1 << (index1 & 7))
+ ? 1 : 0;
+ b = source2[index2 >> 3] &
+ (1 << (index2 & 7))
+ ? 1 : 0;
+
+ if (a != b) /* failure */
+ long_temp = 0L;
+ }
+ ++index1;
+ ++index2;
+ ++mask_index;
+ }
+ }
+
+ stack[stack_ptr++] = long_temp;
+
+ break;
+ }
+ default:
+ /* Unrecognized opcode -- ERROR! */
+ bad_opcode = 1;
+ break;
+ }
+
+ if (bad_opcode)
+ status = -ENOSYS;
+
+ if ((stack_ptr < 0) || (stack_ptr >= ALTERA_STACK_SIZE))
+ status = -EOVERFLOW;
+
+ if (status != 0) {
+ done = 1;
+ *error_address = (s32)(opcode_address - code_sect);
+ }
+ }
+
+ altera_free_buffers(astate);
+
+ /* Free all dynamically allocated arrays */
+ if ((attrs != NULL) && (vars != NULL))
+ for (i = 0; i < sym_count; ++i)
+ if (attrs[i] & 0x80)
+ kfree((void *)vars[i]);
+
+ kfree(vars);
+ kfree(var_size);
+ kfree(attrs);
+ kfree(proc_attributes);
+
+ return status;
+}
+
+static int altera_get_note(u8 *p, s32 program_size,
+ s32 *offset, char *key, char *value, int length)
+/*
+Gets key and value of NOTE fields in the JBC file.
+Can be called in two modes: if offset pointer is NULL,
+then the function searches for note fields which match
+the key string provided. If offset is not NULL, then
+the function finds the next note field of any key,
+starting at the offset specified by the offset pointer.
+Returns 0 for success, else appropriate error code */
+{
+ int status = -ENODATA;
+ u32 note_strings = 0L;
+ u32 note_table = 0L;
+ u32 note_count = 0L;
+ u32 first_word = 0L;
+ int version = 0;
+ int delta = 0;
+ char *key_ptr;
+ char *value_ptr;
+ int i;
+
+ /* Read header information */
+ if (program_size > 52L) {
+ first_word = get_unaligned_be32(&p[0]);
+ version = (first_word & 1L);
+ delta = version * 8;
+
+ note_strings = get_unaligned_be32(&p[8 + delta]);
+ note_table = get_unaligned_be32(&p[12 + delta]);
+ note_count = get_unaligned_be32(&p[44 + (2 * delta)]);
+ }
+
+ if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L))
+ return -EIO;
+
+ if (note_count <= 0L)
+ return status;
+
+ if (offset == NULL) {
+ /*
+ We will search for the first note with a specific key,
+ and return only the value */
+ for (i = 0; (i < note_count) &&
+ (status != 0); ++i) {
+ key_ptr = &p[note_strings +
+ get_unaligned_be32(
+ &p[note_table + (8 * i)])];
+ if ((key != NULL) &&
+ (strnicmp(key, key_ptr, strlen(key_ptr)) == 0)) {
+ status = 0;
+
+ value_ptr = &p[note_strings +
+ get_unaligned_be32(
+ &p[note_table + (8 * i) + 4])];
+
+ if (value != NULL)
+ strlcpy(value, value_ptr, length);
+
+ }
+ }
+ } else {
+ /*
+ We will search for the next note, regardless of the key,
+ and return both the value and the key */
+
+ i = *offset;
+
+ if ((i >= 0) && (i < note_count)) {
+ status = 0;
+
+ if (key != NULL)
+ strlcpy(key, &p[note_strings +
+ get_unaligned_be32(
+ &p[note_table + (8 * i)])],
+ length);
+
+ if (value != NULL)
+ strlcpy(value, &p[note_strings +
+ get_unaligned_be32(
+ &p[note_table + (8 * i) + 4])],
+ length);
+
+ *offset = i + 1;
+ }
+ }
+
+ return status;
+}
+
+static int altera_check_crc(u8 *p, s32 program_size)
+{
+ int status = 0;
+ u16 local_expected = 0,
+ local_actual = 0,
+ shift_reg = 0xffff;
+ int bit, feedback;
+ u8 databyte;
+ u32 i;
+ u32 crc_section = 0L;
+ u32 first_word = 0L;
+ int version = 0;
+ int delta = 0;
+
+ if (program_size > 52L) {
+ first_word = get_unaligned_be32(&p[0]);
+ version = (first_word & 1L);
+ delta = version * 8;
+
+ crc_section = get_unaligned_be32(&p[32 + delta]);
+ }
+
+ if ((first_word != 0x4A414D00L) && (first_word != 0x4A414D01L))
+ status = -EIO;
+
+ if (crc_section >= program_size)
+ status = -EIO;
+
+ if (status == 0) {
+ local_expected = (u16)get_unaligned_be16(&p[crc_section]);
+
+ for (i = 0; i < crc_section; ++i) {
+ databyte = p[i];
+ for (bit = 0; bit < 8; bit++) {
+ feedback = (databyte ^ shift_reg) & 0x01;
+ shift_reg >>= 1;
+ if (feedback)
+ shift_reg ^= 0x8408;
+
+ databyte >>= 1;
+ }
+ }
+
+ local_actual = (u16)~shift_reg;
+
+ if (local_expected != local_actual)
+ status = -EILSEQ;
+
+ }
+
+ if (debug || status) {
+ switch (status) {
+ case 0:
+ printk(KERN_INFO "%s: CRC matched: %04x\n", __func__,
+ local_actual);
+ break;
+ case -EILSEQ:
+ printk(KERN_ERR "%s: CRC mismatch: expected %04x, "
+ "actual %04x\n", __func__, local_expected,
+ local_actual);
+ break;
+ case -ENODATA:
+ printk(KERN_ERR "%s: expected CRC not found, "
+ "actual CRC = %04x\n", __func__,
+ local_actual);
+ break;
+ case -EIO:
+ printk(KERN_ERR "%s: error: format isn't "
+ "recognized.\n", __func__);
+ break;
+ default:
+ printk(KERN_ERR "%s: CRC function returned error "
+ "code %d\n", __func__, status);
+ break;
+ }
+ }
+
+ return status;
+}
+
+static int altera_get_file_info(u8 *p,
+ s32 program_size,
+ int *format_version,
+ int *action_count,
+ int *procedure_count)
+{
+ int status = -EIO;
+ u32 first_word = 0;
+ int version = 0;
+
+ if (program_size <= 52L)
+ return status;
+
+ first_word = get_unaligned_be32(&p[0]);
+
+ if ((first_word == 0x4A414D00L) || (first_word == 0x4A414D01L)) {
+ status = 0;
+
+ version = (first_word & 1L);
+ *format_version = version + 1;
+
+ if (version > 0) {
+ *action_count = get_unaligned_be32(&p[48]);
+ *procedure_count = get_unaligned_be32(&p[52]);
+ }
+ }
+
+ return status;
+}
+
+static int altera_get_act_info(u8 *p,
+ s32 program_size,
+ int index,
+ char **name,
+ char **description,
+ struct altera_procinfo **proc_list)
+{
+ int status = -EIO;
+ struct altera_procinfo *procptr = NULL;
+ struct altera_procinfo *tmpptr = NULL;
+ u32 first_word = 0L;
+ u32 action_table = 0L;
+ u32 proc_table = 0L;
+ u32 str_table = 0L;
+ u32 note_strings = 0L;
+ u32 action_count = 0L;
+ u32 proc_count = 0L;
+ u32 act_name_id = 0L;
+ u32 act_desc_id = 0L;
+ u32 act_proc_id = 0L;
+ u32 act_proc_name = 0L;
+ u8 act_proc_attribute = 0;
+
+ if (program_size <= 52L)
+ return status;
+ /* Read header information */
+ first_word = get_unaligned_be32(&p[0]);
+
+ if (first_word != 0x4A414D01L)
+ return status;
+
+ action_table = get_unaligned_be32(&p[4]);
+ proc_table = get_unaligned_be32(&p[8]);
+ str_table = get_unaligned_be32(&p[12]);
+ note_strings = get_unaligned_be32(&p[16]);
+ action_count = get_unaligned_be32(&p[48]);
+ proc_count = get_unaligned_be32(&p[52]);
+
+ if (index >= action_count)
+ return status;
+
+ act_name_id = get_unaligned_be32(&p[action_table + (12 * index)]);
+ act_desc_id = get_unaligned_be32(&p[action_table + (12 * index) + 4]);
+ act_proc_id = get_unaligned_be32(&p[action_table + (12 * index) + 8]);
+
+ *name = &p[str_table + act_name_id];
+
+ if (act_desc_id < (note_strings - str_table))
+ *description = &p[str_table + act_desc_id];
+
+ do {
+ act_proc_name = get_unaligned_be32(
+ &p[proc_table + (13 * act_proc_id)]);
+ act_proc_attribute =
+ (p[proc_table + (13 * act_proc_id) + 8] & 0x03);
+
+ procptr = (struct altera_procinfo *)
+ kzalloc(sizeof(struct altera_procinfo),
+ GFP_KERNEL);
+
+ if (procptr == NULL)
+ status = -ENOMEM;
+ else {
+ procptr->name = &p[str_table + act_proc_name];
+ procptr->attrs = act_proc_attribute;
+ procptr->next = NULL;
+
+ /* add record to end of linked list */
+ if (*proc_list == NULL)
+ *proc_list = procptr;
+ else {
+ tmpptr = *proc_list;
+ while (tmpptr->next != NULL)
+ tmpptr = tmpptr->next;
+ tmpptr->next = procptr;
+ }
+ }
+
+ act_proc_id = get_unaligned_be32(
+ &p[proc_table + (13 * act_proc_id) + 4]);
+ } while ((act_proc_id != 0) && (act_proc_id < proc_count));
+
+ return status;
+}
+
+int altera_init(struct altera_config *config, const struct firmware *fw)
+{
+ struct altera_state *astate = NULL;
+ struct altera_procinfo *proc_list = NULL;
+ struct altera_procinfo *procptr = NULL;
+ char *key = NULL;
+ char *value = NULL;
+ char *action_name = NULL;
+ char *description = NULL;
+ int exec_result = 0;
+ int exit_code = 0;
+ int format_version = 0;
+ int action_count = 0;
+ int procedure_count = 0;
+ int index = 0;
+ s32 offset = 0L;
+ s32 error_address = 0L;
+
+ key = kzalloc(sizeof(char) * 33, GFP_KERNEL);
+ if (!key)
+ return -ENOMEM;
+ value = kzalloc(sizeof(char) * 257, GFP_KERNEL);
+ if (!value)
+ return -ENOMEM;
+ astate = kzalloc(sizeof(struct altera_state), GFP_KERNEL);
+ if (!astate)
+ return -ENOMEM;
+
+ astate->config = config;
+ if (!astate->config->jtag_io) {
+ dprintk(KERN_INFO "%s: using byteblaster!\n", __func__);
+ astate->config->jtag_io = netup_jtag_io_lpt;
+ }
+
+ altera_check_crc((u8 *)fw->data, fw->size);
+
+ if (debug) {
+ altera_get_file_info((u8 *)fw->data, fw->size, &format_version,
+ &action_count, &procedure_count);
+ printk(KERN_INFO "%s: File format is %s ByteCode format\n",
+ __func__, (format_version == 2) ? "Jam STAPL" :
+ "pre-standardized Jam 1.1");
+ while (altera_get_note((u8 *)fw->data, fw->size,
+ &offset, key, value, 256) == 0)
+ printk(KERN_INFO "%s: NOTE \"%s\" = \"%s\"\n",
+ __func__, key, value);
+ }
+
+ if (debug && (format_version == 2) && (action_count > 0)) {
+ printk(KERN_INFO "%s: Actions available:\n", __func__);
+ for (index = 0; index < action_count; ++index) {
+ altera_get_act_info((u8 *)fw->data, fw->size,
+ index, &action_name,
+ &description,
+ &proc_list);
+
+ if (description == NULL)
+ printk(KERN_INFO "%s: %s\n",
+ __func__,
+ action_name);
+ else
+ printk(KERN_INFO "%s: %s \"%s\"\n",
+ __func__,
+ action_name,
+ description);
+
+ procptr = proc_list;
+ while (procptr != NULL) {
+ if (procptr->attrs != 0)
+ printk(KERN_INFO "%s: %s (%s)\n",
+ __func__,
+ procptr->name,
+ (procptr->attrs == 1) ?
+ "optional" : "recommended");
+
+ proc_list = procptr->next;
+ kfree(procptr);
+ procptr = proc_list;
+ }
+ }
+
+ printk(KERN_INFO "\n");
+ }
+
+ exec_result = altera_execute(astate, (u8 *)fw->data, fw->size,
+ &error_address, &exit_code, &format_version);
+
+ if (exit_code)
+ exec_result = -EREMOTEIO;
+
+ if ((format_version == 2) && (exec_result == -EINVAL)) {
+ if (astate->config->action == NULL)
+ printk(KERN_ERR "%s: error: no action specified for "
+ "Jam STAPL file.\nprogram terminated.\n",
+ __func__);
+ else
+ printk(KERN_ERR "%s: error: action \"%s\""
+ " is not supported "
+ "for this Jam STAPL file.\n"
+ "Program terminated.\n", __func__,
+ astate->config->action);
+
+ } else if (exec_result)
+ printk(KERN_ERR "%s: error %d\n", __func__, exec_result);
+
+ kfree(key);
+ kfree(value);
+ kfree(astate);
+
+ return 0;
+}
+EXPORT_SYMBOL(altera_init);
diff --git a/include/misc/altera.h b/include/misc/altera.h
new file mode 100644
index 0000000..94c0c61
--- /dev/null
+++ b/include/misc/altera.h
@@ -0,0 +1,49 @@
+/*
+ * altera.h
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@xxxxxxxx>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _ALTERA_H_
+#define _ALTERA_H_
+
+struct altera_config {
+ void *dev;
+ u8 *action;
+ int (*jtag_io) (void *dev, int tms, int tdi, int tdo);
+};
+
+#if defined(CONFIG_ALTERA_STAPL) || \
+ (defined(CONFIG_ALTERA_STAPL_MODULE) && defined(MODULE))
+
+extern int altera_init(struct altera_config *config, const struct firmware *fw);
+#else
+
+static inline int altera_init(struct altera_config *config,
+ const struct firmware *fw)
+{
+ printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+ return 0;
+}
+#endif /* CONFIG_ALTERA_STAPL */
+
+#endif /* _ALTERA_H_ */
--
1.7.1
--
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